git.oblomov.eu Git - linux-2.6/blob - drivers/net/tg3.c

   1 /*
   2  * tg3.c: Broadcom Tigon3 ethernet driver.
   3  *
   4  * Copyright (C) 2001, 2002, 2003, 2004 David S. Miller (davem@redhat.com)
   5  * Copyright (C) 2001, 2002, 2003 Jeff Garzik (jgarzik@pobox.com)
   6  * Copyright (C) 2004 Sun Microsystems Inc.
   7  * Copyright (C) 2005-2007 Broadcom Corporation.
   8  *
   9  * Firmware is:
  10  *      Derived from proprietary unpublished source code,
  11  *      Copyright (C) 2000-2003 Broadcom Corporation.
  12  *
  13  *      Permission is hereby granted for the distribution of this firmware
  14  *      data in hexadecimal or equivalent format, provided this copyright
  15  *      notice is accompanying it.
  16  */
  17
  18
  19 #include <linux/module.h>
  20 #include <linux/moduleparam.h>
  21 #include <linux/kernel.h>
  22 #include <linux/types.h>
  23 #include <linux/compiler.h>
  24 #include <linux/slab.h>
  25 #include <linux/delay.h>
  26 #include <linux/in.h>
  27 #include <linux/init.h>
  28 #include <linux/ioport.h>
  29 #include <linux/pci.h>
  30 #include <linux/netdevice.h>
  31 #include <linux/etherdevice.h>
  32 #include <linux/skbuff.h>
  33 #include <linux/ethtool.h>
  34 #include <linux/mii.h>
  35 #include <linux/phy.h>
  36 #include <linux/brcmphy.h>
  37 #include <linux/if_vlan.h>
  38 #include <linux/ip.h>
  39 #include <linux/tcp.h>
  40 #include <linux/workqueue.h>
  41 #include <linux/prefetch.h>
  42 #include <linux/dma-mapping.h>
  43 #include <linux/firmware.h>
  44
  45 #include <net/checksum.h>
  46 #include <net/ip.h>
  47
  48 #include <asm/system.h>
  49 #include <asm/io.h>
  50 #include <asm/byteorder.h>
  51 #include <asm/uaccess.h>
  52
  53 #ifdef CONFIG_SPARC
  54 #include <asm/idprom.h>
  55 #include <asm/prom.h>
  56 #endif
  57
  58 #define BAR_0   0
  59 #define BAR_2   2
  60
  61 #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
  62 #define TG3_VLAN_TAG_USED 1
  63 #else
  64 #define TG3_VLAN_TAG_USED 0
  65 #endif
  66
  67 #include "tg3.h"
  68
  69 #define DRV_MODULE_NAME         "tg3"
  70 #define PFX DRV_MODULE_NAME     ": "
  71 #define DRV_MODULE_VERSION      "3.97"
  72 #define DRV_MODULE_RELDATE      "December 10, 2008"
  73
  74 #define TG3_DEF_MAC_MODE        0
  75 #define TG3_DEF_RX_MODE         0
  76 #define TG3_DEF_TX_MODE         0
  77 #define TG3_DEF_MSG_ENABLE        \
  78         (NETIF_MSG_DRV          | \
  79          NETIF_MSG_PROBE        | \
  80          NETIF_MSG_LINK         | \
  81          NETIF_MSG_TIMER        | \
  82          NETIF_MSG_IFDOWN       | \
  83          NETIF_MSG_IFUP         | \
  84          NETIF_MSG_RX_ERR       | \
  85          NETIF_MSG_TX_ERR)
  86
  87 /* length of time before we decide the hardware is borked,
  88  * and dev->tx_timeout() should be called to fix the problem
  89  */
  90 #define TG3_TX_TIMEOUT                  (5 * HZ)
  91
  92 /* hardware minimum and maximum for a single frame's data payload */
  93 #define TG3_MIN_MTU                     60
  94 #define TG3_MAX_MTU(tp) \
  95         ((tp->tg3_flags2 & TG3_FLG2_JUMBO_CAPABLE) ? 9000 : 1500)
  96
  97 /* These numbers seem to be hard coded in the NIC firmware somehow.
  98  * You can't change the ring sizes, but you can change where you place
  99  * them in the NIC onboard memory.
 100  */
 101 #define TG3_RX_RING_SIZE                512
 102 #define TG3_DEF_RX_RING_PENDING         200
 103 #define TG3_RX_JUMBO_RING_SIZE          256
 104 #define TG3_DEF_RX_JUMBO_RING_PENDING   100
 105
 106 /* Do not place this n-ring entries value into the tp struct itself,
 107  * we really want to expose these constants to GCC so that modulo et
 108  * al.  operations are done with shifts and masks instead of with
 109  * hw multiply/modulo instructions.  Another solution would be to
 110  * replace things like '% foo' with '& (foo - 1)'.
 111  */
 112 #define TG3_RX_RCB_RING_SIZE(tp)        \
 113         ((tp->tg3_flags2 & TG3_FLG2_5705_PLUS) ?  512 : 1024)
 114
 115 #define TG3_TX_RING_SIZE                512
 116 #define TG3_DEF_TX_RING_PENDING         (TG3_TX_RING_SIZE - 1)
 117
 118 #define TG3_RX_RING_BYTES       (sizeof(struct tg3_rx_buffer_desc) * \
 119                                  TG3_RX_RING_SIZE)
 120 #define TG3_RX_JUMBO_RING_BYTES (sizeof(struct tg3_rx_buffer_desc) * \
 121                                  TG3_RX_JUMBO_RING_SIZE)
 122 #define TG3_RX_RCB_RING_BYTES(tp) (sizeof(struct tg3_rx_buffer_desc) * \
 123                                    TG3_RX_RCB_RING_SIZE(tp))
 124 #define TG3_TX_RING_BYTES       (sizeof(struct tg3_tx_buffer_desc) * \
 125                                  TG3_TX_RING_SIZE)
 126 #define NEXT_TX(N)              (((N) + 1) & (TG3_TX_RING_SIZE - 1))
 127
 128 #define RX_PKT_BUF_SZ           (1536 + tp->rx_offset + 64)
 129 #define RX_JUMBO_PKT_BUF_SZ     (9046 + tp->rx_offset + 64)
 130
 131 /* minimum number of free TX descriptors required to wake up TX process */
 132 #define TG3_TX_WAKEUP_THRESH(tp)                ((tp)->tx_pending / 4)
 133
 134 #define TG3_RAW_IP_ALIGN 2
 135
 136 /* number of ETHTOOL_GSTATS u64's */
 137 #define TG3_NUM_STATS           (sizeof(struct tg3_ethtool_stats)/sizeof(u64))
 138
 139 #define TG3_NUM_TEST            6
 140
 141 #define FIRMWARE_TG3            "tigon/tg3.bin"
 142 #define FIRMWARE_TG3TSO         "tigon/tg3_tso.bin"
 143 #define FIRMWARE_TG3TSO5        "tigon/tg3_tso5.bin"
 144
 145 static char version[] __devinitdata =
 146         DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
 147
 148 MODULE_AUTHOR("David S. Miller (davem@redhat.com) and Jeff Garzik (jgarzik@pobox.com)");
 149 MODULE_DESCRIPTION("Broadcom Tigon3 ethernet driver");
 150 MODULE_LICENSE("GPL");
 151 MODULE_VERSION(DRV_MODULE_VERSION);
 152 MODULE_FIRMWARE(FIRMWARE_TG3);
 153 MODULE_FIRMWARE(FIRMWARE_TG3TSO);
 154 MODULE_FIRMWARE(FIRMWARE_TG3TSO5);
 155
 156
 157 static int tg3_debug = -1;      /* -1 == use TG3_DEF_MSG_ENABLE as value */
 158 module_param(tg3_debug, int, 0);
 159 MODULE_PARM_DESC(tg3_debug, "Tigon3 bitmapped debugging message enable value");
 160
 161 static struct pci_device_id tg3_pci_tbl[] = {
 162         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5700)},
 163         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5701)},
 164         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702)},
 165         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5703)},
 166         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5704)},
 167         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702FE)},
 168         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705)},
 169         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705_2)},
 170         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705M)},
 171         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705M_2)},
 172         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702X)},
 173         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5703X)},
 174         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5704S)},
 175         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702A3)},
 176         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5703A3)},
 177         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5782)},
 178         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5788)},
 179         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5789)},
 180         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5901)},
 181         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5901_2)},
 182         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5704S_2)},
 183         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705F)},
 184         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5720)},
 185         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5721)},
 186         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5722)},
 187         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5750)},
 188         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5751)},
 189         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5750M)},
 190         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5751M)},
 191         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5751F)},
 192         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5752)},
 193         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5752M)},
 194         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5753)},
 195         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5753M)},
 196         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5753F)},
 197         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5754)},
 198         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5754M)},
 199         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5755)},
 200         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5755M)},
 201         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5756)},
 202         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5786)},
 203         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5787)},
 204         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5787M)},
 205         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5787F)},
 206         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5714)},
 207         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5714S)},
 208         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5715)},
 209         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5715S)},
 210         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5780)},
 211         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5780S)},
 212         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5781)},
 213         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5906)},
 214         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5906M)},
 215         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5784)},
 216         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5764)},
 217         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5723)},
 218         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5761)},
 219         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5761E)},
 220         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5761S)},
 221         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5761SE)},
 222         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5785)},
 223         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57780)},
 224         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57760)},
 225         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57790)},
 226         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57720)},
 227         {PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_9DXX)},
 228         {PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_9MXX)},
 229         {PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC1000)},
 230         {PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC1001)},
 231         {PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC1003)},
 232         {PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC9100)},
 233         {PCI_DEVICE(PCI_VENDOR_ID_APPLE, PCI_DEVICE_ID_APPLE_TIGON3)},
 234         {}
 235 };
 236
 237 MODULE_DEVICE_TABLE(pci, tg3_pci_tbl);
 238
 239 static const struct {
 240         const char string[ETH_GSTRING_LEN];
 241 } ethtool_stats_keys[TG3_NUM_STATS] = {
 242         { "rx_octets" },
 243         { "rx_fragments" },
 244         { "rx_ucast_packets" },
 245         { "rx_mcast_packets" },
 246         { "rx_bcast_packets" },
 247         { "rx_fcs_errors" },
 248         { "rx_align_errors" },
 249         { "rx_xon_pause_rcvd" },
 250         { "rx_xoff_pause_rcvd" },
 251         { "rx_mac_ctrl_rcvd" },
 252         { "rx_xoff_entered" },
 253         { "rx_frame_too_long_errors" },
 254         { "rx_jabbers" },
 255         { "rx_undersize_packets" },
 256         { "rx_in_length_errors" },
 257         { "rx_out_length_errors" },
 258         { "rx_64_or_less_octet_packets" },
 259         { "rx_65_to_127_octet_packets" },
 260         { "rx_128_to_255_octet_packets" },
 261         { "rx_256_to_511_octet_packets" },
 262         { "rx_512_to_1023_octet_packets" },
 263         { "rx_1024_to_1522_octet_packets" },
 264         { "rx_1523_to_2047_octet_packets" },
 265         { "rx_2048_to_4095_octet_packets" },
 266         { "rx_4096_to_8191_octet_packets" },
 267         { "rx_8192_to_9022_octet_packets" },
 268
 269         { "tx_octets" },
 270         { "tx_collisions" },
 271
 272         { "tx_xon_sent" },
 273         { "tx_xoff_sent" },
 274         { "tx_flow_control" },
 275         { "tx_mac_errors" },
 276         { "tx_single_collisions" },
 277         { "tx_mult_collisions" },
 278         { "tx_deferred" },
 279         { "tx_excessive_collisions" },
 280         { "tx_late_collisions" },
 281         { "tx_collide_2times" },
 282         { "tx_collide_3times" },
 283         { "tx_collide_4times" },
 284         { "tx_collide_5times" },
 285         { "tx_collide_6times" },
 286         { "tx_collide_7times" },
 287         { "tx_collide_8times" },
 288         { "tx_collide_9times" },
 289         { "tx_collide_10times" },
 290         { "tx_collide_11times" },
 291         { "tx_collide_12times" },
 292         { "tx_collide_13times" },
 293         { "tx_collide_14times" },
 294         { "tx_collide_15times" },
 295         { "tx_ucast_packets" },
 296         { "tx_mcast_packets" },
 297         { "tx_bcast_packets" },
 298         { "tx_carrier_sense_errors" },
 299         { "tx_discards" },
 300         { "tx_errors" },
 301
 302         { "dma_writeq_full" },
 303         { "dma_write_prioq_full" },
 304         { "rxbds_empty" },
 305         { "rx_discards" },
 306         { "rx_errors" },
 307         { "rx_threshold_hit" },
 308
 309         { "dma_readq_full" },
 310         { "dma_read_prioq_full" },
 311         { "tx_comp_queue_full" },
 312
 313         { "ring_set_send_prod_index" },
 314         { "ring_status_update" },
 315         { "nic_irqs" },
 316         { "nic_avoided_irqs" },
 317         { "nic_tx_threshold_hit" }
 318 };
 319
 320 static const struct {
 321         const char string[ETH_GSTRING_LEN];
 322 } ethtool_test_keys[TG3_NUM_TEST] = {
 323         { "nvram test     (online) " },
 324         { "link test      (online) " },
 325         { "register test  (offline)" },
 326         { "memory test    (offline)" },
 327         { "loopback test  (offline)" },
 328         { "interrupt test (offline)" },
 329 };
 330
 331 static void tg3_write32(struct tg3 *tp, u32 off, u32 val)
 332 {
 333         writel(val, tp->regs + off);
 334 }
 335
 336 static u32 tg3_read32(struct tg3 *tp, u32 off)
 337 {
 338         return (readl(tp->regs + off));
 339 }
 340
 341 static void tg3_ape_write32(struct tg3 *tp, u32 off, u32 val)
 342 {
 343         writel(val, tp->aperegs + off);
 344 }
 345
 346 static u32 tg3_ape_read32(struct tg3 *tp, u32 off)
 347 {
 348         return (readl(tp->aperegs + off));
 349 }
 350
 351 static void tg3_write_indirect_reg32(struct tg3 *tp, u32 off, u32 val)
 352 {
 353         unsigned long flags;
 354
 355         spin_lock_irqsave(&tp->indirect_lock, flags);
 356         pci_write_config_dword(tp->pdev, TG3PCI_REG_BASE_ADDR, off);
 357         pci_write_config_dword(tp->pdev, TG3PCI_REG_DATA, val);
 358         spin_unlock_irqrestore(&tp->indirect_lock, flags);
 359 }
 360
 361 static void tg3_write_flush_reg32(struct tg3 *tp, u32 off, u32 val)
 362 {
 363         writel(val, tp->regs + off);
 364         readl(tp->regs + off);
 365 }
 366
 367 static u32 tg3_read_indirect_reg32(struct tg3 *tp, u32 off)
 368 {
 369         unsigned long flags;
 370         u32 val;
 371
 372         spin_lock_irqsave(&tp->indirect_lock, flags);
 373         pci_write_config_dword(tp->pdev, TG3PCI_REG_BASE_ADDR, off);
 374         pci_read_config_dword(tp->pdev, TG3PCI_REG_DATA, &val);
 375         spin_unlock_irqrestore(&tp->indirect_lock, flags);
 376         return val;
 377 }
 378
 379 static void tg3_write_indirect_mbox(struct tg3 *tp, u32 off, u32 val)
 380 {
 381         unsigned long flags;
 382
 383         if (off == (MAILBOX_RCVRET_CON_IDX_0 + TG3_64BIT_REG_LOW)) {
 384                 pci_write_config_dword(tp->pdev, TG3PCI_RCV_RET_RING_CON_IDX +
 385                                        TG3_64BIT_REG_LOW, val);
 386                 return;
 387         }
 388         if (off == (MAILBOX_RCV_STD_PROD_IDX + TG3_64BIT_REG_LOW)) {
 389                 pci_write_config_dword(tp->pdev, TG3PCI_STD_RING_PROD_IDX +
 390                                        TG3_64BIT_REG_LOW, val);
 391                 return;
 392         }
 393
 394         spin_lock_irqsave(&tp->indirect_lock, flags);
 395         pci_write_config_dword(tp->pdev, TG3PCI_REG_BASE_ADDR, off + 0x5600);
 396         pci_write_config_dword(tp->pdev, TG3PCI_REG_DATA, val);
 397         spin_unlock_irqrestore(&tp->indirect_lock, flags);
 398
 399         /* In indirect mode when disabling interrupts, we also need
 400          * to clear the interrupt bit in the GRC local ctrl register.
 401          */
 402         if ((off == (MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW)) &&
 403             (val == 0x1)) {
 404                 pci_write_config_dword(tp->pdev, TG3PCI_MISC_LOCAL_CTRL,
 405                                        tp->grc_local_ctrl|GRC_LCLCTRL_CLEARINT);
 406         }
 407 }
 408
 409 static u32 tg3_read_indirect_mbox(struct tg3 *tp, u32 off)
 410 {
 411         unsigned long flags;
 412         u32 val;
 413
 414         spin_lock_irqsave(&tp->indirect_lock, flags);
 415         pci_write_config_dword(tp->pdev, TG3PCI_REG_BASE_ADDR, off + 0x5600);
 416         pci_read_config_dword(tp->pdev, TG3PCI_REG_DATA, &val);
 417         spin_unlock_irqrestore(&tp->indirect_lock, flags);
 418         return val;
 419 }
 420
 421 /* usec_wait specifies the wait time in usec when writing to certain registers
 422  * where it is unsafe to read back the register without some delay.
 423  * GRC_LOCAL_CTRL is one example if the GPIOs are toggled to switch power.
 424  * TG3PCI_CLOCK_CTRL is another example if the clock frequencies are changed.
 425  */
 426 static void _tw32_flush(struct tg3 *tp, u32 off, u32 val, u32 usec_wait)
 427 {
 428         if ((tp->tg3_flags & TG3_FLAG_PCIX_TARGET_HWBUG) ||
 429             (tp->tg3_flags2 & TG3_FLG2_ICH_WORKAROUND))
 430                 /* Non-posted methods */
 431                 tp->write32(tp, off, val);
 432         else {
 433                 /* Posted method */
 434                 tg3_write32(tp, off, val);
 435                 if (usec_wait)
 436                         udelay(usec_wait);
 437                 tp->read32(tp, off);
 438         }
 439         /* Wait again after the read for the posted method to guarantee that
 440          * the wait time is met.
 441          */
 442         if (usec_wait)
 443                 udelay(usec_wait);
 444 }
 445
 446 static inline void tw32_mailbox_flush(struct tg3 *tp, u32 off, u32 val)
 447 {
 448         tp->write32_mbox(tp, off, val);
 449         if (!(tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER) &&
 450             !(tp->tg3_flags2 & TG3_FLG2_ICH_WORKAROUND))
 451                 tp->read32_mbox(tp, off);
 452 }
 453
 454 static void tg3_write32_tx_mbox(struct tg3 *tp, u32 off, u32 val)
 455 {
 456         void __iomem *mbox = tp->regs + off;
 457         writel(val, mbox);
 458         if (tp->tg3_flags & TG3_FLAG_TXD_MBOX_HWBUG)
 459                 writel(val, mbox);
 460         if (tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER)
 461                 readl(mbox);
 462 }
 463
 464 static u32 tg3_read32_mbox_5906(struct tg3 *tp, u32 off)
 465 {
 466         return (readl(tp->regs + off + GRCMBOX_BASE));
 467 }
 468
 469 static void tg3_write32_mbox_5906(struct tg3 *tp, u32 off, u32 val)
 470 {
 471         writel(val, tp->regs + off + GRCMBOX_BASE);
 472 }
 473
 474 #define tw32_mailbox(reg, val)  tp->write32_mbox(tp, reg, val)
 475 #define tw32_mailbox_f(reg, val)        tw32_mailbox_flush(tp, (reg), (val))
 476 #define tw32_rx_mbox(reg, val)  tp->write32_rx_mbox(tp, reg, val)
 477 #define tw32_tx_mbox(reg, val)  tp->write32_tx_mbox(tp, reg, val)
 478 #define tr32_mailbox(reg)       tp->read32_mbox(tp, reg)
 479
 480 #define tw32(reg,val)           tp->write32(tp, reg, val)
 481 #define tw32_f(reg,val)         _tw32_flush(tp,(reg),(val), 0)
 482 #define tw32_wait_f(reg,val,us) _tw32_flush(tp,(reg),(val), (us))
 483 #define tr32(reg)               tp->read32(tp, reg)
 484
 485 static void tg3_write_mem(struct tg3 *tp, u32 off, u32 val)
 486 {
 487         unsigned long flags;
 488
 489         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) &&
 490             (off >= NIC_SRAM_STATS_BLK) && (off < NIC_SRAM_TX_BUFFER_DESC))
 491                 return;
 492
 493         spin_lock_irqsave(&tp->indirect_lock, flags);
 494         if (tp->tg3_flags & TG3_FLAG_SRAM_USE_CONFIG) {
 495                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, off);
 496                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_DATA, val);
 497
 498                 /* Always leave this as zero. */
 499                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, 0);
 500         } else {
 501                 tw32_f(TG3PCI_MEM_WIN_BASE_ADDR, off);
 502                 tw32_f(TG3PCI_MEM_WIN_DATA, val);
 503
 504                 /* Always leave this as zero. */
 505                 tw32_f(TG3PCI_MEM_WIN_BASE_ADDR, 0);
 506         }
 507         spin_unlock_irqrestore(&tp->indirect_lock, flags);
 508 }
 509
 510 static void tg3_read_mem(struct tg3 *tp, u32 off, u32 *val)
 511 {
 512         unsigned long flags;
 513
 514         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) &&
 515             (off >= NIC_SRAM_STATS_BLK) && (off < NIC_SRAM_TX_BUFFER_DESC)) {
 516                 *val = 0;
 517                 return;
 518         }
 519
 520         spin_lock_irqsave(&tp->indirect_lock, flags);
 521         if (tp->tg3_flags & TG3_FLAG_SRAM_USE_CONFIG) {
 522                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, off);
 523                 pci_read_config_dword(tp->pdev, TG3PCI_MEM_WIN_DATA, val);
 524
 525                 /* Always leave this as zero. */
 526                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, 0);
 527         } else {
 528                 tw32_f(TG3PCI_MEM_WIN_BASE_ADDR, off);
 529                 *val = tr32(TG3PCI_MEM_WIN_DATA);
 530
 531                 /* Always leave this as zero. */
 532                 tw32_f(TG3PCI_MEM_WIN_BASE_ADDR, 0);
 533         }
 534         spin_unlock_irqrestore(&tp->indirect_lock, flags);
 535 }
 536
 537 static void tg3_ape_lock_init(struct tg3 *tp)
 538 {
 539         int i;
 540
 541         /* Make sure the driver hasn't any stale locks. */
 542         for (i = 0; i < 8; i++)
 543                 tg3_ape_write32(tp, TG3_APE_LOCK_GRANT + 4 * i,
 544                                 APE_LOCK_GRANT_DRIVER);
 545 }
 546
 547 static int tg3_ape_lock(struct tg3 *tp, int locknum)
 548 {
 549         int i, off;
 550         int ret = 0;
 551         u32 status;
 552
 553         if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE))
 554                 return 0;
 555
 556         switch (locknum) {
 557                 case TG3_APE_LOCK_GRC:
 558                 case TG3_APE_LOCK_MEM:
 559                         break;
 560                 default:
 561                         return -EINVAL;
 562         }
 563
 564         off = 4 * locknum;
 565
 566         tg3_ape_write32(tp, TG3_APE_LOCK_REQ + off, APE_LOCK_REQ_DRIVER);
 567
 568         /* Wait for up to 1 millisecond to acquire lock. */
 569         for (i = 0; i < 100; i++) {
 570                 status = tg3_ape_read32(tp, TG3_APE_LOCK_GRANT + off);
 571                 if (status == APE_LOCK_GRANT_DRIVER)
 572                         break;
 573                 udelay(10);
 574         }
 575
 576         if (status != APE_LOCK_GRANT_DRIVER) {
 577                 /* Revoke the lock request. */
 578                 tg3_ape_write32(tp, TG3_APE_LOCK_GRANT + off,
 579                                 APE_LOCK_GRANT_DRIVER);
 580
 581                 ret = -EBUSY;
 582         }
 583
 584         return ret;
 585 }
 586
 587 static void tg3_ape_unlock(struct tg3 *tp, int locknum)
 588 {
 589         int off;
 590
 591         if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE))
 592                 return;
 593
 594         switch (locknum) {
 595                 case TG3_APE_LOCK_GRC:
 596                 case TG3_APE_LOCK_MEM:
 597                         break;
 598                 default:
 599                         return;
 600         }
 601
 602         off = 4 * locknum;
 603         tg3_ape_write32(tp, TG3_APE_LOCK_GRANT + off, APE_LOCK_GRANT_DRIVER);
 604 }
 605
 606 static void tg3_disable_ints(struct tg3 *tp)
 607 {
 608         tw32(TG3PCI_MISC_HOST_CTRL,
 609              (tp->misc_host_ctrl | MISC_HOST_CTRL_MASK_PCI_INT));
 610         tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0x00000001);
 611 }
 612
 613 static inline void tg3_cond_int(struct tg3 *tp)
 614 {
 615         if (!(tp->tg3_flags & TG3_FLAG_TAGGED_STATUS) &&
 616             (tp->hw_status->status & SD_STATUS_UPDATED))
 617                 tw32(GRC_LOCAL_CTRL, tp->grc_local_ctrl | GRC_LCLCTRL_SETINT);
 618         else
 619                 tw32(HOSTCC_MODE, tp->coalesce_mode |
 620                      (HOSTCC_MODE_ENABLE | HOSTCC_MODE_NOW));
 621 }
 622
 623 static void tg3_enable_ints(struct tg3 *tp)
 624 {
 625         tp->irq_sync = 0;
 626         wmb();
 627
 628         tw32(TG3PCI_MISC_HOST_CTRL,
 629              (tp->misc_host_ctrl & ~MISC_HOST_CTRL_MASK_PCI_INT));
 630         tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW,
 631                        (tp->last_tag << 24));
 632         if (tp->tg3_flags2 & TG3_FLG2_1SHOT_MSI)
 633                 tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW,
 634                                (tp->last_tag << 24));
 635         tg3_cond_int(tp);
 636 }
 637
 638 static inline unsigned int tg3_has_work(struct tg3 *tp)
 639 {
 640         struct tg3_hw_status *sblk = tp->hw_status;
 641         unsigned int work_exists = 0;
 642
 643         /* check for phy events */
 644         if (!(tp->tg3_flags &
 645               (TG3_FLAG_USE_LINKCHG_REG |
 646                TG3_FLAG_POLL_SERDES))) {
 647                 if (sblk->status & SD_STATUS_LINK_CHG)
 648                         work_exists = 1;
 649         }
 650         /* check for RX/TX work to do */
 651         if (sblk->idx[0].tx_consumer != tp->tx_cons ||
 652             sblk->idx[0].rx_producer != tp->rx_rcb_ptr)
 653                 work_exists = 1;
 654
 655         return work_exists;
 656 }
 657
 658 /* tg3_restart_ints
 659  *  similar to tg3_enable_ints, but it accurately determines whether there
 660  *  is new work pending and can return without flushing the PIO write
 661  *  which reenables interrupts
 662  */
 663 static void tg3_restart_ints(struct tg3 *tp)
 664 {
 665         tw32_mailbox(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW,
 666                      tp->last_tag << 24);
 667         mmiowb();
 668
 669         /* When doing tagged status, this work check is unnecessary.
 670          * The last_tag we write above tells the chip which piece of
 671          * work we've completed.
 672          */
 673         if (!(tp->tg3_flags & TG3_FLAG_TAGGED_STATUS) &&
 674             tg3_has_work(tp))
 675                 tw32(HOSTCC_MODE, tp->coalesce_mode |
 676                      (HOSTCC_MODE_ENABLE | HOSTCC_MODE_NOW));
 677 }
 678
 679 static inline void tg3_netif_stop(struct tg3 *tp)
 680 {
 681         tp->dev->trans_start = jiffies; /* prevent tx timeout */
 682         napi_disable(&tp->napi);
 683         netif_tx_disable(tp->dev);
 684 }
 685
 686 static inline void tg3_netif_start(struct tg3 *tp)
 687 {
 688         netif_wake_queue(tp->dev);
 689         /* NOTE: unconditional netif_wake_queue is only appropriate
 690          * so long as all callers are assured to have free tx slots
 691          * (such as after tg3_init_hw)
 692          */
 693         napi_enable(&tp->napi);
 694         tp->hw_status->status |= SD_STATUS_UPDATED;
 695         tg3_enable_ints(tp);
 696 }
 697
 698 static void tg3_switch_clocks(struct tg3 *tp)
 699 {
 700         u32 clock_ctrl = tr32(TG3PCI_CLOCK_CTRL);
 701         u32 orig_clock_ctrl;
 702
 703         if ((tp->tg3_flags & TG3_FLAG_CPMU_PRESENT) ||
 704             (tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
 705                 return;
 706
 707         orig_clock_ctrl = clock_ctrl;
 708         clock_ctrl &= (CLOCK_CTRL_FORCE_CLKRUN |
 709                        CLOCK_CTRL_CLKRUN_OENABLE |
 710                        0x1f);
 711         tp->pci_clock_ctrl = clock_ctrl;
 712
 713         if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
 714                 if (orig_clock_ctrl & CLOCK_CTRL_625_CORE) {
 715                         tw32_wait_f(TG3PCI_CLOCK_CTRL,
 716                                     clock_ctrl | CLOCK_CTRL_625_CORE, 40);
 717                 }
 718         } else if ((orig_clock_ctrl & CLOCK_CTRL_44MHZ_CORE) != 0) {
 719                 tw32_wait_f(TG3PCI_CLOCK_CTRL,
 720                             clock_ctrl |
 721                             (CLOCK_CTRL_44MHZ_CORE | CLOCK_CTRL_ALTCLK),
 722                             40);
 723                 tw32_wait_f(TG3PCI_CLOCK_CTRL,
 724                             clock_ctrl | (CLOCK_CTRL_ALTCLK),
 725                             40);
 726         }
 727         tw32_wait_f(TG3PCI_CLOCK_CTRL, clock_ctrl, 40);
 728 }
 729
 730 #define PHY_BUSY_LOOPS  5000
 731
 732 static int tg3_readphy(struct tg3 *tp, int reg, u32 *val)
 733 {
 734         u32 frame_val;
 735         unsigned int loops;
 736         int ret;
 737
 738         if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
 739                 tw32_f(MAC_MI_MODE,
 740                      (tp->mi_mode & ~MAC_MI_MODE_AUTO_POLL));
 741                 udelay(80);
 742         }
 743
 744         *val = 0x0;
 745
 746         frame_val  = ((PHY_ADDR << MI_COM_PHY_ADDR_SHIFT) &
 747                       MI_COM_PHY_ADDR_MASK);
 748         frame_val |= ((reg << MI_COM_REG_ADDR_SHIFT) &
 749                       MI_COM_REG_ADDR_MASK);
 750         frame_val |= (MI_COM_CMD_READ | MI_COM_START);
 751
 752         tw32_f(MAC_MI_COM, frame_val);
 753
 754         loops = PHY_BUSY_LOOPS;
 755         while (loops != 0) {
 756                 udelay(10);
 757                 frame_val = tr32(MAC_MI_COM);
 758
 759                 if ((frame_val & MI_COM_BUSY) == 0) {
 760                         udelay(5);
 761                         frame_val = tr32(MAC_MI_COM);
 762                         break;
 763                 }
 764                 loops -= 1;
 765         }
 766
 767         ret = -EBUSY;
 768         if (loops != 0) {
 769                 *val = frame_val & MI_COM_DATA_MASK;
 770                 ret = 0;
 771         }
 772
 773         if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
 774                 tw32_f(MAC_MI_MODE, tp->mi_mode);
 775                 udelay(80);
 776         }
 777
 778         return ret;
 779 }
 780
 781 static int tg3_writephy(struct tg3 *tp, int reg, u32 val)
 782 {
 783         u32 frame_val;
 784         unsigned int loops;
 785         int ret;
 786
 787         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906 &&
 788             (reg == MII_TG3_CTRL || reg == MII_TG3_AUX_CTRL))
 789                 return 0;
 790
 791         if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
 792                 tw32_f(MAC_MI_MODE,
 793                      (tp->mi_mode & ~MAC_MI_MODE_AUTO_POLL));
 794                 udelay(80);
 795         }
 796
 797         frame_val  = ((PHY_ADDR << MI_COM_PHY_ADDR_SHIFT) &
 798                       MI_COM_PHY_ADDR_MASK);
 799         frame_val |= ((reg << MI_COM_REG_ADDR_SHIFT) &
 800                       MI_COM_REG_ADDR_MASK);
 801         frame_val |= (val & MI_COM_DATA_MASK);
 802         frame_val |= (MI_COM_CMD_WRITE | MI_COM_START);
 803
 804         tw32_f(MAC_MI_COM, frame_val);
 805
 806         loops = PHY_BUSY_LOOPS;
 807         while (loops != 0) {
 808                 udelay(10);
 809                 frame_val = tr32(MAC_MI_COM);
 810                 if ((frame_val & MI_COM_BUSY) == 0) {
 811                         udelay(5);
 812                         frame_val = tr32(MAC_MI_COM);
 813                         break;
 814                 }
 815                 loops -= 1;
 816         }
 817
 818         ret = -EBUSY;
 819         if (loops != 0)
 820                 ret = 0;
 821
 822         if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
 823                 tw32_f(MAC_MI_MODE, tp->mi_mode);
 824                 udelay(80);
 825         }
 826
 827         return ret;
 828 }
 829
 830 static int tg3_bmcr_reset(struct tg3 *tp)
 831 {
 832         u32 phy_control;
 833         int limit, err;
 834
 835         /* OK, reset it, and poll the BMCR_RESET bit until it
 836          * clears or we time out.
 837          */
 838         phy_control = BMCR_RESET;
 839         err = tg3_writephy(tp, MII_BMCR, phy_control);
 840         if (err != 0)
 841                 return -EBUSY;
 842
 843         limit = 5000;
 844         while (limit--) {
 845                 err = tg3_readphy(tp, MII_BMCR, &phy_control);
 846                 if (err != 0)
 847                         return -EBUSY;
 848
 849                 if ((phy_control & BMCR_RESET) == 0) {
 850                         udelay(40);
 851                         break;
 852                 }
 853                 udelay(10);
 854         }
 855         if (limit < 0)
 856                 return -EBUSY;
 857
 858         return 0;
 859 }
 860
 861 static int tg3_mdio_read(struct mii_bus *bp, int mii_id, int reg)
 862 {
 863         struct tg3 *tp = (struct tg3 *)bp->priv;
 864         u32 val;
 865
 866         if (tp->tg3_flags3 & TG3_FLG3_MDIOBUS_PAUSED)
 867                 return -EAGAIN;
 868
 869         if (tg3_readphy(tp, reg, &val))
 870                 return -EIO;
 871
 872         return val;
 873 }
 874
 875 static int tg3_mdio_write(struct mii_bus *bp, int mii_id, int reg, u16 val)
 876 {
 877         struct tg3 *tp = (struct tg3 *)bp->priv;
 878
 879         if (tp->tg3_flags3 & TG3_FLG3_MDIOBUS_PAUSED)
 880                 return -EAGAIN;
 881
 882         if (tg3_writephy(tp, reg, val))
 883                 return -EIO;
 884
 885         return 0;
 886 }
 887
 888 static int tg3_mdio_reset(struct mii_bus *bp)
 889 {
 890         return 0;
 891 }
 892
 893 static void tg3_mdio_config_5785(struct tg3 *tp)
 894 {
 895         u32 val;
 896         struct phy_device *phydev;
 897
 898         phydev = tp->mdio_bus->phy_map[PHY_ADDR];
 899         switch (phydev->drv->phy_id & phydev->drv->phy_id_mask) {
 900         case TG3_PHY_ID_BCM50610:
 901                 val = MAC_PHYCFG2_50610_LED_MODES;
 902                 break;
 903         case TG3_PHY_ID_BCMAC131:
 904                 val = MAC_PHYCFG2_AC131_LED_MODES;
 905                 break;
 906         case TG3_PHY_ID_RTL8211C:
 907                 val = MAC_PHYCFG2_RTL8211C_LED_MODES;
 908                 break;
 909         case TG3_PHY_ID_RTL8201E:
 910                 val = MAC_PHYCFG2_RTL8201E_LED_MODES;
 911                 break;
 912         default:
 913                 return;
 914         }
 915
 916         if (phydev->interface != PHY_INTERFACE_MODE_RGMII) {
 917                 tw32(MAC_PHYCFG2, val);
 918
 919                 val = tr32(MAC_PHYCFG1);
 920                 val &= ~MAC_PHYCFG1_RGMII_INT;
 921                 tw32(MAC_PHYCFG1, val);
 922
 923                 return;
 924         }
 925
 926         if (!(tp->tg3_flags3 & TG3_FLG3_RGMII_STD_IBND_DISABLE))
 927                 val |= MAC_PHYCFG2_EMODE_MASK_MASK |
 928                        MAC_PHYCFG2_FMODE_MASK_MASK |
 929                        MAC_PHYCFG2_GMODE_MASK_MASK |
 930                        MAC_PHYCFG2_ACT_MASK_MASK   |
 931                        MAC_PHYCFG2_QUAL_MASK_MASK |
 932                        MAC_PHYCFG2_INBAND_ENABLE;
 933
 934         tw32(MAC_PHYCFG2, val);
 935
 936         val = tr32(MAC_PHYCFG1) & ~(MAC_PHYCFG1_RGMII_EXT_RX_DEC |
 937                                     MAC_PHYCFG1_RGMII_SND_STAT_EN);
 938         if (tp->tg3_flags3 & TG3_FLG3_RGMII_STD_IBND_DISABLE) {
 939                 if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_RX_EN)
 940                         val |= MAC_PHYCFG1_RGMII_EXT_RX_DEC;
 941                 if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_TX_EN)
 942                         val |= MAC_PHYCFG1_RGMII_SND_STAT_EN;
 943         }
 944         tw32(MAC_PHYCFG1, val | MAC_PHYCFG1_RGMII_INT | MAC_PHYCFG1_TXC_DRV);
 945
 946         val = tr32(MAC_EXT_RGMII_MODE);
 947         val &= ~(MAC_RGMII_MODE_RX_INT_B |
 948                  MAC_RGMII_MODE_RX_QUALITY |
 949                  MAC_RGMII_MODE_RX_ACTIVITY |
 950                  MAC_RGMII_MODE_RX_ENG_DET |
 951                  MAC_RGMII_MODE_TX_ENABLE |
 952                  MAC_RGMII_MODE_TX_LOWPWR |
 953                  MAC_RGMII_MODE_TX_RESET);
 954         if (!(tp->tg3_flags3 & TG3_FLG3_RGMII_STD_IBND_DISABLE)) {
 955                 if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_RX_EN)
 956                         val |= MAC_RGMII_MODE_RX_INT_B |
 957                                MAC_RGMII_MODE_RX_QUALITY |
 958                                MAC_RGMII_MODE_RX_ACTIVITY |
 959                                MAC_RGMII_MODE_RX_ENG_DET;
 960                 if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_TX_EN)
 961                         val |= MAC_RGMII_MODE_TX_ENABLE |
 962                                MAC_RGMII_MODE_TX_LOWPWR |
 963                                MAC_RGMII_MODE_TX_RESET;
 964         }
 965         tw32(MAC_EXT_RGMII_MODE, val);
 966 }
 967
 968 static void tg3_mdio_start(struct tg3 *tp)
 969 {
 970         if (tp->tg3_flags3 & TG3_FLG3_MDIOBUS_INITED) {
 971                 mutex_lock(&tp->mdio_bus->mdio_lock);
 972                 tp->tg3_flags3 &= ~TG3_FLG3_MDIOBUS_PAUSED;
 973                 mutex_unlock(&tp->mdio_bus->mdio_lock);
 974         }
 975
 976         tp->mi_mode &= ~MAC_MI_MODE_AUTO_POLL;
 977         tw32_f(MAC_MI_MODE, tp->mi_mode);
 978         udelay(80);
 979
 980         if ((tp->tg3_flags3 & TG3_FLG3_MDIOBUS_INITED) &&
 981             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785)
 982                 tg3_mdio_config_5785(tp);
 983 }
 984
 985 static void tg3_mdio_stop(struct tg3 *tp)
 986 {
 987         if (tp->tg3_flags3 & TG3_FLG3_MDIOBUS_INITED) {
 988                 mutex_lock(&tp->mdio_bus->mdio_lock);
 989                 tp->tg3_flags3 |= TG3_FLG3_MDIOBUS_PAUSED;
 990                 mutex_unlock(&tp->mdio_bus->mdio_lock);
 991         }
 992 }
 993
 994 static int tg3_mdio_init(struct tg3 *tp)
 995 {
 996         int i;
 997         u32 reg;
 998         struct phy_device *phydev;
 999
1000         tg3_mdio_start(tp);
1001
1002         if (!(tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) ||
1003             (tp->tg3_flags3 & TG3_FLG3_MDIOBUS_INITED))
1004                 return 0;
1005
1006         tp->mdio_bus = mdiobus_alloc();
1007         if (tp->mdio_bus == NULL)
1008                 return -ENOMEM;
1009
1010         tp->mdio_bus->name     = "tg3 mdio bus";
1011         snprintf(tp->mdio_bus->id, MII_BUS_ID_SIZE, "%x",
1012                  (tp->pdev->bus->number << 8) | tp->pdev->devfn);
1013         tp->mdio_bus->priv     = tp;
1014         tp->mdio_bus->parent   = &tp->pdev->dev;
1015         tp->mdio_bus->read     = &tg3_mdio_read;
1016         tp->mdio_bus->write    = &tg3_mdio_write;
1017         tp->mdio_bus->reset    = &tg3_mdio_reset;
1018         tp->mdio_bus->phy_mask = ~(1 << PHY_ADDR);
1019         tp->mdio_bus->irq      = &tp->mdio_irq[0];
1020
1021         for (i = 0; i < PHY_MAX_ADDR; i++)
1022                 tp->mdio_bus->irq[i] = PHY_POLL;
1023
1024         /* The bus registration will look for all the PHYs on the mdio bus.
1025          * Unfortunately, it does not ensure the PHY is powered up before
1026          * accessing the PHY ID registers.  A chip reset is the
1027          * quickest way to bring the device back to an operational state..
1028          */
1029         if (tg3_readphy(tp, MII_BMCR, &reg) || (reg & BMCR_PDOWN))
1030                 tg3_bmcr_reset(tp);
1031
1032         i = mdiobus_register(tp->mdio_bus);
1033         if (i) {
1034                 printk(KERN_WARNING "%s: mdiobus_reg failed (0x%x)\n",
1035                         tp->dev->name, i);
1036                 mdiobus_free(tp->mdio_bus);
1037                 return i;
1038         }
1039
1040         phydev = tp->mdio_bus->phy_map[PHY_ADDR];
1041
1042         if (!phydev || !phydev->drv) {
1043                 printk(KERN_WARNING "%s: No PHY devices\n", tp->dev->name);
1044                 mdiobus_unregister(tp->mdio_bus);
1045                 mdiobus_free(tp->mdio_bus);
1046                 return -ENODEV;
1047         }
1048
1049         switch (phydev->drv->phy_id & phydev->drv->phy_id_mask) {
1050         case TG3_PHY_ID_BCM57780:
1051                 phydev->interface = PHY_INTERFACE_MODE_GMII;
1052                 break;
1053         case TG3_PHY_ID_BCM50610:
1054                 if (tp->tg3_flags3 & TG3_FLG3_RGMII_STD_IBND_DISABLE)
1055                         phydev->dev_flags |= PHY_BRCM_STD_IBND_DISABLE;
1056                 if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_RX_EN)
1057                         phydev->dev_flags |= PHY_BRCM_EXT_IBND_RX_ENABLE;
1058                 if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_TX_EN)
1059                         phydev->dev_flags |= PHY_BRCM_EXT_IBND_TX_ENABLE;
1060                 /* fallthru */
1061         case TG3_PHY_ID_RTL8211C:
1062                 phydev->interface = PHY_INTERFACE_MODE_RGMII;
1063                 break;
1064         case TG3_PHY_ID_RTL8201E:
1065         case TG3_PHY_ID_BCMAC131:
1066                 phydev->interface = PHY_INTERFACE_MODE_MII;
1067                 break;
1068         }
1069
1070         tp->tg3_flags3 |= TG3_FLG3_MDIOBUS_INITED;
1071
1072         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785)
1073                 tg3_mdio_config_5785(tp);
1074
1075         return 0;
1076 }
1077
1078 static void tg3_mdio_fini(struct tg3 *tp)
1079 {
1080         if (tp->tg3_flags3 & TG3_FLG3_MDIOBUS_INITED) {
1081                 tp->tg3_flags3 &= ~TG3_FLG3_MDIOBUS_INITED;
1082                 mdiobus_unregister(tp->mdio_bus);
1083                 mdiobus_free(tp->mdio_bus);
1084                 tp->tg3_flags3 &= ~TG3_FLG3_MDIOBUS_PAUSED;
1085         }
1086 }
1087
1088 /* tp->lock is held. */
1089 static inline void tg3_generate_fw_event(struct tg3 *tp)
1090 {
1091         u32 val;
1092
1093         val = tr32(GRC_RX_CPU_EVENT);
1094         val |= GRC_RX_CPU_DRIVER_EVENT;
1095         tw32_f(GRC_RX_CPU_EVENT, val);
1096
1097         tp->last_event_jiffies = jiffies;
1098 }
1099
1100 #define TG3_FW_EVENT_TIMEOUT_USEC 2500
1101
1102 /* tp->lock is held. */
1103 static void tg3_wait_for_event_ack(struct tg3 *tp)
1104 {
1105         int i;
1106         unsigned int delay_cnt;
1107         long time_remain;
1108
1109         /* If enough time has passed, no wait is necessary. */
1110         time_remain = (long)(tp->last_event_jiffies + 1 +
1111                       usecs_to_jiffies(TG3_FW_EVENT_TIMEOUT_USEC)) -
1112                       (long)jiffies;
1113         if (time_remain < 0)
1114                 return;
1115
1116         /* Check if we can shorten the wait time. */
1117         delay_cnt = jiffies_to_usecs(time_remain);
1118         if (delay_cnt > TG3_FW_EVENT_TIMEOUT_USEC)
1119                 delay_cnt = TG3_FW_EVENT_TIMEOUT_USEC;
1120         delay_cnt = (delay_cnt >> 3) + 1;
1121
1122         for (i = 0; i < delay_cnt; i++) {
1123                 if (!(tr32(GRC_RX_CPU_EVENT) & GRC_RX_CPU_DRIVER_EVENT))
1124                         break;
1125                 udelay(8);
1126         }
1127 }
1128
1129 /* tp->lock is held. */
1130 static void tg3_ump_link_report(struct tg3 *tp)
1131 {
1132         u32 reg;
1133         u32 val;
1134
1135         if (!(tp->tg3_flags2 & TG3_FLG2_5780_CLASS) ||
1136             !(tp->tg3_flags  & TG3_FLAG_ENABLE_ASF))
1137                 return;
1138
1139         tg3_wait_for_event_ack(tp);
1140
1141         tg3_write_mem(tp, NIC_SRAM_FW_CMD_MBOX, FWCMD_NICDRV_LINK_UPDATE);
1142
1143         tg3_write_mem(tp, NIC_SRAM_FW_CMD_LEN_MBOX, 14);
1144
1145         val = 0;
1146         if (!tg3_readphy(tp, MII_BMCR, &reg))
1147                 val = reg << 16;
1148         if (!tg3_readphy(tp, MII_BMSR, &reg))
1149                 val |= (reg & 0xffff);
1150         tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX, val);
1151
1152         val = 0;
1153         if (!tg3_readphy(tp, MII_ADVERTISE, &reg))
1154                 val = reg << 16;
1155         if (!tg3_readphy(tp, MII_LPA, &reg))
1156                 val |= (reg & 0xffff);
1157         tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX + 4, val);
1158
1159         val = 0;
1160         if (!(tp->tg3_flags2 & TG3_FLG2_MII_SERDES)) {
1161                 if (!tg3_readphy(tp, MII_CTRL1000, &reg))
1162                         val = reg << 16;
1163                 if (!tg3_readphy(tp, MII_STAT1000, &reg))
1164                         val |= (reg & 0xffff);
1165         }
1166         tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX + 8, val);
1167
1168         if (!tg3_readphy(tp, MII_PHYADDR, &reg))
1169                 val = reg << 16;
1170         else
1171                 val = 0;
1172         tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX + 12, val);
1173
1174         tg3_generate_fw_event(tp);
1175 }
1176
1177 static void tg3_link_report(struct tg3 *tp)
1178 {
1179         if (!netif_carrier_ok(tp->dev)) {
1180                 if (netif_msg_link(tp))
1181                         printk(KERN_INFO PFX "%s: Link is down.\n",
1182                                tp->dev->name);
1183                 tg3_ump_link_report(tp);
1184         } else if (netif_msg_link(tp)) {
1185                 printk(KERN_INFO PFX "%s: Link is up at %d Mbps, %s duplex.\n",
1186                        tp->dev->name,
1187                        (tp->link_config.active_speed == SPEED_1000 ?
1188                         1000 :
1189                         (tp->link_config.active_speed == SPEED_100 ?
1190                          100 : 10)),
1191                        (tp->link_config.active_duplex == DUPLEX_FULL ?
1192                         "full" : "half"));
1193
1194                 printk(KERN_INFO PFX
1195                        "%s: Flow control is %s for TX and %s for RX.\n",
1196                        tp->dev->name,
1197                        (tp->link_config.active_flowctrl & FLOW_CTRL_TX) ?
1198                        "on" : "off",
1199                        (tp->link_config.active_flowctrl & FLOW_CTRL_RX) ?
1200                        "on" : "off");
1201                 tg3_ump_link_report(tp);
1202         }
1203 }
1204
1205 static u16 tg3_advert_flowctrl_1000T(u8 flow_ctrl)
1206 {
1207         u16 miireg;
1208
1209         if ((flow_ctrl & FLOW_CTRL_TX) && (flow_ctrl & FLOW_CTRL_RX))
1210                 miireg = ADVERTISE_PAUSE_CAP;
1211         else if (flow_ctrl & FLOW_CTRL_TX)
1212                 miireg = ADVERTISE_PAUSE_ASYM;
1213         else if (flow_ctrl & FLOW_CTRL_RX)
1214                 miireg = ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
1215         else
1216                 miireg = 0;
1217
1218         return miireg;
1219 }
1220
1221 static u16 tg3_advert_flowctrl_1000X(u8 flow_ctrl)
1222 {
1223         u16 miireg;
1224
1225         if ((flow_ctrl & FLOW_CTRL_TX) && (flow_ctrl & FLOW_CTRL_RX))
1226                 miireg = ADVERTISE_1000XPAUSE;
1227         else if (flow_ctrl & FLOW_CTRL_TX)
1228                 miireg = ADVERTISE_1000XPSE_ASYM;
1229         else if (flow_ctrl & FLOW_CTRL_RX)
1230                 miireg = ADVERTISE_1000XPAUSE | ADVERTISE_1000XPSE_ASYM;
1231         else
1232                 miireg = 0;
1233
1234         return miireg;
1235 }
1236
1237 static u8 tg3_resolve_flowctrl_1000X(u16 lcladv, u16 rmtadv)
1238 {
1239         u8 cap = 0;
1240
1241         if (lcladv & ADVERTISE_1000XPAUSE) {
1242                 if (lcladv & ADVERTISE_1000XPSE_ASYM) {
1243                         if (rmtadv & LPA_1000XPAUSE)
1244                                 cap = FLOW_CTRL_TX | FLOW_CTRL_RX;
1245                         else if (rmtadv & LPA_1000XPAUSE_ASYM)
1246                                 cap = FLOW_CTRL_RX;
1247                 } else {
1248                         if (rmtadv & LPA_1000XPAUSE)
1249                                 cap = FLOW_CTRL_TX | FLOW_CTRL_RX;
1250                 }
1251         } else if (lcladv & ADVERTISE_1000XPSE_ASYM) {
1252                 if ((rmtadv & LPA_1000XPAUSE) && (rmtadv & LPA_1000XPAUSE_ASYM))
1253                         cap = FLOW_CTRL_TX;
1254         }
1255
1256         return cap;
1257 }
1258
1259 static void tg3_setup_flow_control(struct tg3 *tp, u32 lcladv, u32 rmtadv)
1260 {
1261         u8 autoneg;
1262         u8 flowctrl = 0;
1263         u32 old_rx_mode = tp->rx_mode;
1264         u32 old_tx_mode = tp->tx_mode;
1265
1266         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB)
1267                 autoneg = tp->mdio_bus->phy_map[PHY_ADDR]->autoneg;
1268         else
1269                 autoneg = tp->link_config.autoneg;
1270
1271         if (autoneg == AUTONEG_ENABLE &&
1272             (tp->tg3_flags & TG3_FLAG_PAUSE_AUTONEG)) {
1273                 if (tp->tg3_flags2 & TG3_FLG2_ANY_SERDES)
1274                         flowctrl = tg3_resolve_flowctrl_1000X(lcladv, rmtadv);
1275                 else
1276                         flowctrl = mii_resolve_flowctrl_fdx(lcladv, rmtadv);
1277         } else
1278                 flowctrl = tp->link_config.flowctrl;
1279
1280         tp->link_config.active_flowctrl = flowctrl;
1281
1282         if (flowctrl & FLOW_CTRL_RX)
1283                 tp->rx_mode |= RX_MODE_FLOW_CTRL_ENABLE;
1284         else
1285                 tp->rx_mode &= ~RX_MODE_FLOW_CTRL_ENABLE;
1286
1287         if (old_rx_mode != tp->rx_mode)
1288                 tw32_f(MAC_RX_MODE, tp->rx_mode);
1289
1290         if (flowctrl & FLOW_CTRL_TX)
1291                 tp->tx_mode |= TX_MODE_FLOW_CTRL_ENABLE;
1292         else
1293                 tp->tx_mode &= ~TX_MODE_FLOW_CTRL_ENABLE;
1294
1295         if (old_tx_mode != tp->tx_mode)
1296                 tw32_f(MAC_TX_MODE, tp->tx_mode);
1297 }
1298
1299 static void tg3_adjust_link(struct net_device *dev)
1300 {
1301         u8 oldflowctrl, linkmesg = 0;
1302         u32 mac_mode, lcl_adv, rmt_adv;
1303         struct tg3 *tp = netdev_priv(dev);
1304         struct phy_device *phydev = tp->mdio_bus->phy_map[PHY_ADDR];
1305
1306         spin_lock(&tp->lock);
1307
1308         mac_mode = tp->mac_mode & ~(MAC_MODE_PORT_MODE_MASK |
1309                                     MAC_MODE_HALF_DUPLEX);
1310
1311         oldflowctrl = tp->link_config.active_flowctrl;
1312
1313         if (phydev->link) {
1314                 lcl_adv = 0;
1315                 rmt_adv = 0;
1316
1317                 if (phydev->speed == SPEED_100 || phydev->speed == SPEED_10)
1318                         mac_mode |= MAC_MODE_PORT_MODE_MII;
1319                 else
1320                         mac_mode |= MAC_MODE_PORT_MODE_GMII;
1321
1322                 if (phydev->duplex == DUPLEX_HALF)
1323                         mac_mode |= MAC_MODE_HALF_DUPLEX;
1324                 else {
1325                         lcl_adv = tg3_advert_flowctrl_1000T(
1326                                   tp->link_config.flowctrl);
1327
1328                         if (phydev->pause)
1329                                 rmt_adv = LPA_PAUSE_CAP;
1330                         if (phydev->asym_pause)
1331                                 rmt_adv |= LPA_PAUSE_ASYM;
1332                 }
1333
1334                 tg3_setup_flow_control(tp, lcl_adv, rmt_adv);
1335         } else
1336                 mac_mode |= MAC_MODE_PORT_MODE_GMII;
1337
1338         if (mac_mode != tp->mac_mode) {
1339                 tp->mac_mode = mac_mode;
1340                 tw32_f(MAC_MODE, tp->mac_mode);
1341                 udelay(40);
1342         }
1343
1344         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785) {
1345                 if (phydev->speed == SPEED_10)
1346                         tw32(MAC_MI_STAT,
1347                              MAC_MI_STAT_10MBPS_MODE |
1348                              MAC_MI_STAT_LNKSTAT_ATTN_ENAB);
1349                 else
1350                         tw32(MAC_MI_STAT, MAC_MI_STAT_LNKSTAT_ATTN_ENAB);
1351         }
1352
1353         if (phydev->speed == SPEED_1000 && phydev->duplex == DUPLEX_HALF)
1354                 tw32(MAC_TX_LENGTHS,
1355                      ((2 << TX_LENGTHS_IPG_CRS_SHIFT) |
1356                       (6 << TX_LENGTHS_IPG_SHIFT) |
1357                       (0xff << TX_LENGTHS_SLOT_TIME_SHIFT)));
1358         else
1359                 tw32(MAC_TX_LENGTHS,
1360                      ((2 << TX_LENGTHS_IPG_CRS_SHIFT) |
1361                       (6 << TX_LENGTHS_IPG_SHIFT) |
1362                       (32 << TX_LENGTHS_SLOT_TIME_SHIFT)));
1363
1364         if ((phydev->link && tp->link_config.active_speed == SPEED_INVALID) ||
1365             (!phydev->link && tp->link_config.active_speed != SPEED_INVALID) ||
1366             phydev->speed != tp->link_config.active_speed ||
1367             phydev->duplex != tp->link_config.active_duplex ||
1368             oldflowctrl != tp->link_config.active_flowctrl)
1369             linkmesg = 1;
1370
1371         tp->link_config.active_speed = phydev->speed;
1372         tp->link_config.active_duplex = phydev->duplex;
1373
1374         spin_unlock(&tp->lock);
1375
1376         if (linkmesg)
1377                 tg3_link_report(tp);
1378 }
1379
1380 static int tg3_phy_init(struct tg3 *tp)
1381 {
1382         struct phy_device *phydev;
1383
1384         if (tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED)
1385                 return 0;
1386
1387         /* Bring the PHY back to a known state. */
1388         tg3_bmcr_reset(tp);
1389
1390         phydev = tp->mdio_bus->phy_map[PHY_ADDR];
1391
1392         /* Attach the MAC to the PHY. */
1393         phydev = phy_connect(tp->dev, dev_name(&phydev->dev), tg3_adjust_link,
1394                              phydev->dev_flags, phydev->interface);
1395         if (IS_ERR(phydev)) {
1396                 printk(KERN_ERR "%s: Could not attach to PHY\n", tp->dev->name);
1397                 return PTR_ERR(phydev);
1398         }
1399
1400         /* Mask with MAC supported features. */
1401         switch (phydev->interface) {
1402         case PHY_INTERFACE_MODE_GMII:
1403         case PHY_INTERFACE_MODE_RGMII:
1404                 if (!(tp->tg3_flags & TG3_FLAG_10_100_ONLY)) {
1405                         phydev->supported &= (PHY_GBIT_FEATURES |
1406                                               SUPPORTED_Pause |
1407                                               SUPPORTED_Asym_Pause);
1408                         break;
1409                 }
1410                 /* fallthru */
1411         case PHY_INTERFACE_MODE_MII:
1412                 phydev->supported &= (PHY_BASIC_FEATURES |
1413                                       SUPPORTED_Pause |
1414                                       SUPPORTED_Asym_Pause);
1415                 break;
1416         default:
1417                 phy_disconnect(tp->mdio_bus->phy_map[PHY_ADDR]);
1418                 return -EINVAL;
1419         }
1420
1421         tp->tg3_flags3 |= TG3_FLG3_PHY_CONNECTED;
1422
1423         phydev->advertising = phydev->supported;
1424
1425         return 0;
1426 }
1427
1428 static void tg3_phy_start(struct tg3 *tp)
1429 {
1430         struct phy_device *phydev;
1431
1432         if (!(tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED))
1433                 return;
1434
1435         phydev = tp->mdio_bus->phy_map[PHY_ADDR];
1436
1437         if (tp->link_config.phy_is_low_power) {
1438                 tp->link_config.phy_is_low_power = 0;
1439                 phydev->speed = tp->link_config.orig_speed;
1440                 phydev->duplex = tp->link_config.orig_duplex;
1441                 phydev->autoneg = tp->link_config.orig_autoneg;
1442                 phydev->advertising = tp->link_config.orig_advertising;
1443         }
1444
1445         phy_start(phydev);
1446
1447         phy_start_aneg(phydev);
1448 }
1449
1450 static void tg3_phy_stop(struct tg3 *tp)
1451 {
1452         if (!(tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED))
1453                 return;
1454
1455         phy_stop(tp->mdio_bus->phy_map[PHY_ADDR]);
1456 }
1457
1458 static void tg3_phy_fini(struct tg3 *tp)
1459 {
1460         if (tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED) {
1461                 phy_disconnect(tp->mdio_bus->phy_map[PHY_ADDR]);
1462                 tp->tg3_flags3 &= ~TG3_FLG3_PHY_CONNECTED;
1463         }
1464 }
1465
1466 static void tg3_phydsp_write(struct tg3 *tp, u32 reg, u32 val)
1467 {
1468         tg3_writephy(tp, MII_TG3_DSP_ADDRESS, reg);
1469         tg3_writephy(tp, MII_TG3_DSP_RW_PORT, val);
1470 }
1471
1472 static void tg3_phy_toggle_apd(struct tg3 *tp, bool enable)
1473 {
1474         u32 reg;
1475
1476         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
1477                 return;
1478
1479         reg = MII_TG3_MISC_SHDW_WREN |
1480               MII_TG3_MISC_SHDW_SCR5_SEL |
1481               MII_TG3_MISC_SHDW_SCR5_LPED |
1482               MII_TG3_MISC_SHDW_SCR5_DLPTLM |
1483               MII_TG3_MISC_SHDW_SCR5_SDTL |
1484               MII_TG3_MISC_SHDW_SCR5_C125OE;
1485         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5784 || !enable)
1486                 reg |= MII_TG3_MISC_SHDW_SCR5_DLLAPD;
1487
1488         tg3_writephy(tp, MII_TG3_MISC_SHDW, reg);
1489
1490
1491         reg = MII_TG3_MISC_SHDW_WREN |
1492               MII_TG3_MISC_SHDW_APD_SEL |
1493               MII_TG3_MISC_SHDW_APD_WKTM_84MS;
1494         if (enable)
1495                 reg |= MII_TG3_MISC_SHDW_APD_ENABLE;
1496
1497         tg3_writephy(tp, MII_TG3_MISC_SHDW, reg);
1498 }
1499
1500 static void tg3_phy_toggle_automdix(struct tg3 *tp, int enable)
1501 {
1502         u32 phy;
1503
1504         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) ||
1505             (tp->tg3_flags2 & TG3_FLG2_ANY_SERDES))
1506                 return;
1507
1508         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
1509                 u32 ephy;
1510
1511                 if (!tg3_readphy(tp, MII_TG3_EPHY_TEST, &ephy)) {
1512                         tg3_writephy(tp, MII_TG3_EPHY_TEST,
1513                                      ephy | MII_TG3_EPHY_SHADOW_EN);
1514                         if (!tg3_readphy(tp, MII_TG3_EPHYTST_MISCCTRL, &phy)) {
1515                                 if (enable)
1516                                         phy |= MII_TG3_EPHYTST_MISCCTRL_MDIX;
1517                                 else
1518                                         phy &= ~MII_TG3_EPHYTST_MISCCTRL_MDIX;
1519                                 tg3_writephy(tp, MII_TG3_EPHYTST_MISCCTRL, phy);
1520                         }
1521                         tg3_writephy(tp, MII_TG3_EPHY_TEST, ephy);
1522                 }
1523         } else {
1524                 phy = MII_TG3_AUXCTL_MISC_RDSEL_MISC |
1525                       MII_TG3_AUXCTL_SHDWSEL_MISC;
1526                 if (!tg3_writephy(tp, MII_TG3_AUX_CTRL, phy) &&
1527                     !tg3_readphy(tp, MII_TG3_AUX_CTRL, &phy)) {
1528                         if (enable)
1529                                 phy |= MII_TG3_AUXCTL_MISC_FORCE_AMDIX;
1530                         else
1531                                 phy &= ~MII_TG3_AUXCTL_MISC_FORCE_AMDIX;
1532                         phy |= MII_TG3_AUXCTL_MISC_WREN;
1533                         tg3_writephy(tp, MII_TG3_AUX_CTRL, phy);
1534                 }
1535         }
1536 }
1537
1538 static void tg3_phy_set_wirespeed(struct tg3 *tp)
1539 {
1540         u32 val;
1541
1542         if (tp->tg3_flags2 & TG3_FLG2_NO_ETH_WIRE_SPEED)
1543                 return;
1544
1545         if (!tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x7007) &&
1546             !tg3_readphy(tp, MII_TG3_AUX_CTRL, &val))
1547                 tg3_writephy(tp, MII_TG3_AUX_CTRL,
1548                              (val | (1 << 15) | (1 << 4)));
1549 }
1550
1551 static void tg3_phy_apply_otp(struct tg3 *tp)
1552 {
1553         u32 otp, phy;
1554
1555         if (!tp->phy_otp)
1556                 return;
1557
1558         otp = tp->phy_otp;
1559
1560         /* Enable SM_DSP clock and tx 6dB coding. */
1561         phy = MII_TG3_AUXCTL_SHDWSEL_AUXCTL |
1562               MII_TG3_AUXCTL_ACTL_SMDSP_ENA |
1563               MII_TG3_AUXCTL_ACTL_TX_6DB;
1564         tg3_writephy(tp, MII_TG3_AUX_CTRL, phy);
1565
1566         phy = ((otp & TG3_OTP_AGCTGT_MASK) >> TG3_OTP_AGCTGT_SHIFT);
1567         phy |= MII_TG3_DSP_TAP1_AGCTGT_DFLT;
1568         tg3_phydsp_write(tp, MII_TG3_DSP_TAP1, phy);
1569
1570         phy = ((otp & TG3_OTP_HPFFLTR_MASK) >> TG3_OTP_HPFFLTR_SHIFT) |
1571               ((otp & TG3_OTP_HPFOVER_MASK) >> TG3_OTP_HPFOVER_SHIFT);
1572         tg3_phydsp_write(tp, MII_TG3_DSP_AADJ1CH0, phy);
1573
1574         phy = ((otp & TG3_OTP_LPFDIS_MASK) >> TG3_OTP_LPFDIS_SHIFT);
1575         phy |= MII_TG3_DSP_AADJ1CH3_ADCCKADJ;
1576         tg3_phydsp_write(tp, MII_TG3_DSP_AADJ1CH3, phy);
1577
1578         phy = ((otp & TG3_OTP_VDAC_MASK) >> TG3_OTP_VDAC_SHIFT);
1579         tg3_phydsp_write(tp, MII_TG3_DSP_EXP75, phy);
1580
1581         phy = ((otp & TG3_OTP_10BTAMP_MASK) >> TG3_OTP_10BTAMP_SHIFT);
1582         tg3_phydsp_write(tp, MII_TG3_DSP_EXP96, phy);
1583
1584         phy = ((otp & TG3_OTP_ROFF_MASK) >> TG3_OTP_ROFF_SHIFT) |
1585               ((otp & TG3_OTP_RCOFF_MASK) >> TG3_OTP_RCOFF_SHIFT);
1586         tg3_phydsp_write(tp, MII_TG3_DSP_EXP97, phy);
1587
1588         /* Turn off SM_DSP clock. */
1589         phy = MII_TG3_AUXCTL_SHDWSEL_AUXCTL |
1590               MII_TG3_AUXCTL_ACTL_TX_6DB;
1591         tg3_writephy(tp, MII_TG3_AUX_CTRL, phy);
1592 }
1593
1594 static int tg3_wait_macro_done(struct tg3 *tp)
1595 {
1596         int limit = 100;
1597
1598         while (limit--) {
1599                 u32 tmp32;
1600
1601                 if (!tg3_readphy(tp, 0x16, &tmp32)) {
1602                         if ((tmp32 & 0x1000) == 0)
1603                                 break;
1604                 }
1605         }
1606         if (limit < 0)
1607                 return -EBUSY;
1608
1609         return 0;
1610 }
1611
1612 static int tg3_phy_write_and_check_testpat(struct tg3 *tp, int *resetp)
1613 {
1614         static const u32 test_pat[4][6] = {
1615         { 0x00005555, 0x00000005, 0x00002aaa, 0x0000000a, 0x00003456, 0x00000003 },
1616         { 0x00002aaa, 0x0000000a, 0x00003333, 0x00000003, 0x0000789a, 0x00000005 },
1617         { 0x00005a5a, 0x00000005, 0x00002a6a, 0x0000000a, 0x00001bcd, 0x00000003 },
1618         { 0x00002a5a, 0x0000000a, 0x000033c3, 0x00000003, 0x00002ef1, 0x00000005 }
1619         };
1620         int chan;
1621
1622         for (chan = 0; chan < 4; chan++) {
1623                 int i;
1624
1625                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
1626                              (chan * 0x2000) | 0x0200);
1627                 tg3_writephy(tp, 0x16, 0x0002);
1628
1629                 for (i = 0; i < 6; i++)
1630                         tg3_writephy(tp, MII_TG3_DSP_RW_PORT,
1631                                      test_pat[chan][i]);
1632
1633                 tg3_writephy(tp, 0x16, 0x0202);
1634                 if (tg3_wait_macro_done(tp)) {
1635                         *resetp = 1;
1636                         return -EBUSY;
1637                 }
1638
1639                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
1640                              (chan * 0x2000) | 0x0200);
1641                 tg3_writephy(tp, 0x16, 0x0082);
1642                 if (tg3_wait_macro_done(tp)) {
1643                         *resetp = 1;
1644                         return -EBUSY;
1645                 }
1646
1647                 tg3_writephy(tp, 0x16, 0x0802);
1648                 if (tg3_wait_macro_done(tp)) {
1649                         *resetp = 1;
1650                         return -EBUSY;
1651                 }
1652
1653                 for (i = 0; i < 6; i += 2) {
1654                         u32 low, high;
1655
1656                         if (tg3_readphy(tp, MII_TG3_DSP_RW_PORT, &low) ||
1657                             tg3_readphy(tp, MII_TG3_DSP_RW_PORT, &high) ||
1658                             tg3_wait_macro_done(tp)) {
1659                                 *resetp = 1;
1660                                 return -EBUSY;
1661                         }
1662                         low &= 0x7fff;
1663                         high &= 0x000f;
1664                         if (low != test_pat[chan][i] ||
1665                             high != test_pat[chan][i+1]) {
1666                                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x000b);
1667                                 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x4001);
1668                                 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x4005);
1669
1670                                 return -EBUSY;
1671                         }
1672                 }
1673         }
1674
1675         return 0;
1676 }
1677
1678 static int tg3_phy_reset_chanpat(struct tg3 *tp)
1679 {
1680         int chan;
1681
1682         for (chan = 0; chan < 4; chan++) {
1683                 int i;
1684
1685                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
1686                              (chan * 0x2000) | 0x0200);
1687                 tg3_writephy(tp, 0x16, 0x0002);
1688                 for (i = 0; i < 6; i++)
1689                         tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x000);
1690                 tg3_writephy(tp, 0x16, 0x0202);
1691                 if (tg3_wait_macro_done(tp))
1692                         return -EBUSY;
1693         }
1694
1695         return 0;
1696 }
1697
1698 static int tg3_phy_reset_5703_4_5(struct tg3 *tp)
1699 {
1700         u32 reg32, phy9_orig;
1701         int retries, do_phy_reset, err;
1702
1703         retries = 10;
1704         do_phy_reset = 1;
1705         do {
1706                 if (do_phy_reset) {
1707                         err = tg3_bmcr_reset(tp);
1708                         if (err)
1709                                 return err;
1710                         do_phy_reset = 0;
1711                 }
1712
1713                 /* Disable transmitter and interrupt.  */
1714                 if (tg3_readphy(tp, MII_TG3_EXT_CTRL, &reg32))
1715                         continue;
1716
1717                 reg32 |= 0x3000;
1718                 tg3_writephy(tp, MII_TG3_EXT_CTRL, reg32);
1719
1720                 /* Set full-duplex, 1000 mbps.  */
1721                 tg3_writephy(tp, MII_BMCR,
1722                              BMCR_FULLDPLX | TG3_BMCR_SPEED1000);
1723
1724                 /* Set to master mode.  */
1725                 if (tg3_readphy(tp, MII_TG3_CTRL, &phy9_orig))
1726                         continue;
1727
1728                 tg3_writephy(tp, MII_TG3_CTRL,
1729                              (MII_TG3_CTRL_AS_MASTER |
1730                               MII_TG3_CTRL_ENABLE_AS_MASTER));
1731
1732                 /* Enable SM_DSP_CLOCK and 6dB.  */
1733                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0c00);
1734
1735                 /* Block the PHY control access.  */
1736                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x8005);
1737                 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x0800);
1738
1739                 err = tg3_phy_write_and_check_testpat(tp, &do_phy_reset);
1740                 if (!err)
1741                         break;
1742         } while (--retries);
1743
1744         err = tg3_phy_reset_chanpat(tp);
1745         if (err)
1746                 return err;
1747
1748         tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x8005);
1749         tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x0000);
1750
1751         tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x8200);
1752         tg3_writephy(tp, 0x16, 0x0000);
1753
1754         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
1755             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
1756                 /* Set Extended packet length bit for jumbo frames */
1757                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x4400);
1758         }
1759         else {
1760                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0400);
1761         }
1762
1763         tg3_writephy(tp, MII_TG3_CTRL, phy9_orig);
1764
1765         if (!tg3_readphy(tp, MII_TG3_EXT_CTRL, &reg32)) {
1766                 reg32 &= ~0x3000;
1767                 tg3_writephy(tp, MII_TG3_EXT_CTRL, reg32);
1768         } else if (!err)
1769                 err = -EBUSY;
1770
1771         return err;
1772 }
1773
1774 /* This will reset the tigon3 PHY if there is no valid
1775  * link unless the FORCE argument is non-zero.
1776  */
1777 static int tg3_phy_reset(struct tg3 *tp)
1778 {
1779         u32 cpmuctrl;
1780         u32 phy_status;
1781         int err;
1782
1783         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
1784                 u32 val;
1785
1786                 val = tr32(GRC_MISC_CFG);
1787                 tw32_f(GRC_MISC_CFG, val & ~GRC_MISC_CFG_EPHY_IDDQ);
1788                 udelay(40);
1789         }
1790         err  = tg3_readphy(tp, MII_BMSR, &phy_status);
1791         err |= tg3_readphy(tp, MII_BMSR, &phy_status);
1792         if (err != 0)
1793                 return -EBUSY;
1794
1795         if (netif_running(tp->dev) && netif_carrier_ok(tp->dev)) {
1796                 netif_carrier_off(tp->dev);
1797                 tg3_link_report(tp);
1798         }
1799
1800         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
1801             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
1802             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) {
1803                 err = tg3_phy_reset_5703_4_5(tp);
1804                 if (err)
1805                         return err;
1806                 goto out;
1807         }
1808
1809         cpmuctrl = 0;
1810         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 &&
1811             GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5784_AX) {
1812                 cpmuctrl = tr32(TG3_CPMU_CTRL);
1813                 if (cpmuctrl & CPMU_CTRL_GPHY_10MB_RXONLY)
1814                         tw32(TG3_CPMU_CTRL,
1815                              cpmuctrl & ~CPMU_CTRL_GPHY_10MB_RXONLY);
1816         }
1817
1818         err = tg3_bmcr_reset(tp);
1819         if (err)
1820                 return err;
1821
1822         if (cpmuctrl & CPMU_CTRL_GPHY_10MB_RXONLY) {
1823                 u32 phy;
1824
1825                 phy = MII_TG3_DSP_EXP8_AEDW | MII_TG3_DSP_EXP8_REJ2MHz;
1826                 tg3_phydsp_write(tp, MII_TG3_DSP_EXP8, phy);
1827
1828                 tw32(TG3_CPMU_CTRL, cpmuctrl);
1829         }
1830
1831         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX ||
1832             GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5761_AX) {
1833                 u32 val;
1834
1835                 val = tr32(TG3_CPMU_LSPD_1000MB_CLK);
1836                 if ((val & CPMU_LSPD_1000MB_MACCLK_MASK) ==
1837                     CPMU_LSPD_1000MB_MACCLK_12_5) {
1838                         val &= ~CPMU_LSPD_1000MB_MACCLK_MASK;
1839                         udelay(40);
1840                         tw32_f(TG3_CPMU_LSPD_1000MB_CLK, val);
1841                 }
1842         }
1843
1844         tg3_phy_apply_otp(tp);
1845
1846         if (tp->tg3_flags3 & TG3_FLG3_PHY_ENABLE_APD)
1847                 tg3_phy_toggle_apd(tp, true);
1848         else
1849                 tg3_phy_toggle_apd(tp, false);
1850
1851 out:
1852         if (tp->tg3_flags2 & TG3_FLG2_PHY_ADC_BUG) {
1853                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0c00);
1854                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x201f);
1855                 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x2aaa);
1856                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x000a);
1857                 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x0323);
1858                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0400);
1859         }
1860         if (tp->tg3_flags2 & TG3_FLG2_PHY_5704_A0_BUG) {
1861                 tg3_writephy(tp, 0x1c, 0x8d68);
1862                 tg3_writephy(tp, 0x1c, 0x8d68);
1863         }
1864         if (tp->tg3_flags2 & TG3_FLG2_PHY_BER_BUG) {
1865                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0c00);
1866                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x000a);
1867                 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x310b);
1868                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x201f);
1869                 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x9506);
1870                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x401f);
1871                 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x14e2);
1872                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0400);
1873         }
1874         else if (tp->tg3_flags2 & TG3_FLG2_PHY_JITTER_BUG) {
1875                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0c00);
1876                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x000a);
1877                 if (tp->tg3_flags2 & TG3_FLG2_PHY_ADJUST_TRIM) {
1878                         tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x110b);
1879                         tg3_writephy(tp, MII_TG3_TEST1,
1880                                      MII_TG3_TEST1_TRIM_EN | 0x4);
1881                 } else
1882                         tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x010b);
1883                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0400);
1884         }
1885         /* Set Extended packet length bit (bit 14) on all chips that */
1886         /* support jumbo frames */
1887         if ((tp->phy_id & PHY_ID_MASK) == PHY_ID_BCM5401) {
1888                 /* Cannot do read-modify-write on 5401 */
1889                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x4c20);
1890         } else if (tp->tg3_flags2 & TG3_FLG2_JUMBO_CAPABLE) {
1891                 u32 phy_reg;
1892
1893                 /* Set bit 14 with read-modify-write to preserve other bits */
1894                 if (!tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0007) &&
1895                     !tg3_readphy(tp, MII_TG3_AUX_CTRL, &phy_reg))
1896                         tg3_writephy(tp, MII_TG3_AUX_CTRL, phy_reg | 0x4000);
1897         }
1898
1899         /* Set phy register 0x10 bit 0 to high fifo elasticity to support
1900          * jumbo frames transmission.
1901          */
1902         if (tp->tg3_flags2 & TG3_FLG2_JUMBO_CAPABLE) {
1903                 u32 phy_reg;
1904
1905                 if (!tg3_readphy(tp, MII_TG3_EXT_CTRL, &phy_reg))
1906                     tg3_writephy(tp, MII_TG3_EXT_CTRL,
1907                                  phy_reg | MII_TG3_EXT_CTRL_FIFO_ELASTIC);
1908         }
1909
1910         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
1911                 /* adjust output voltage */
1912                 tg3_writephy(tp, MII_TG3_EPHY_PTEST, 0x12);
1913         }
1914
1915         tg3_phy_toggle_automdix(tp, 1);
1916         tg3_phy_set_wirespeed(tp);
1917         return 0;
1918 }
1919
1920 static void tg3_frob_aux_power(struct tg3 *tp)
1921 {
1922         struct tg3 *tp_peer = tp;
1923
1924         if ((tp->tg3_flags2 & TG3_FLG2_IS_NIC) == 0)
1925                 return;
1926
1927         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) ||
1928             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714)) {
1929                 struct net_device *dev_peer;
1930
1931                 dev_peer = pci_get_drvdata(tp->pdev_peer);
1932                 /* remove_one() may have been run on the peer. */
1933                 if (!dev_peer)
1934                         tp_peer = tp;
1935                 else
1936                         tp_peer = netdev_priv(dev_peer);
1937         }
1938
1939         if ((tp->tg3_flags & TG3_FLAG_WOL_ENABLE) != 0 ||
1940             (tp->tg3_flags & TG3_FLAG_ENABLE_ASF) != 0 ||
1941             (tp_peer->tg3_flags & TG3_FLAG_WOL_ENABLE) != 0 ||
1942             (tp_peer->tg3_flags & TG3_FLAG_ENABLE_ASF) != 0) {
1943                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
1944                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
1945                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
1946                                     (GRC_LCLCTRL_GPIO_OE0 |
1947                                      GRC_LCLCTRL_GPIO_OE1 |
1948                                      GRC_LCLCTRL_GPIO_OE2 |
1949                                      GRC_LCLCTRL_GPIO_OUTPUT0 |
1950                                      GRC_LCLCTRL_GPIO_OUTPUT1),
1951                                     100);
1952                 } else if (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5761) {
1953                         /* The 5761 non-e device swaps GPIO 0 and GPIO 2. */
1954                         u32 grc_local_ctrl = GRC_LCLCTRL_GPIO_OE0 |
1955                                              GRC_LCLCTRL_GPIO_OE1 |
1956                                              GRC_LCLCTRL_GPIO_OE2 |
1957                                              GRC_LCLCTRL_GPIO_OUTPUT0 |
1958                                              GRC_LCLCTRL_GPIO_OUTPUT1 |
1959                                              tp->grc_local_ctrl;
1960                         tw32_wait_f(GRC_LOCAL_CTRL, grc_local_ctrl, 100);
1961
1962                         grc_local_ctrl |= GRC_LCLCTRL_GPIO_OUTPUT2;
1963                         tw32_wait_f(GRC_LOCAL_CTRL, grc_local_ctrl, 100);
1964
1965                         grc_local_ctrl &= ~GRC_LCLCTRL_GPIO_OUTPUT0;
1966                         tw32_wait_f(GRC_LOCAL_CTRL, grc_local_ctrl, 100);
1967                 } else {
1968                         u32 no_gpio2;
1969                         u32 grc_local_ctrl = 0;
1970
1971                         if (tp_peer != tp &&
1972                             (tp_peer->tg3_flags & TG3_FLAG_INIT_COMPLETE) != 0)
1973                                 return;
1974
1975                         /* Workaround to prevent overdrawing Amps. */
1976                         if (GET_ASIC_REV(tp->pci_chip_rev_id) ==
1977                             ASIC_REV_5714) {
1978                                 grc_local_ctrl |= GRC_LCLCTRL_GPIO_OE3;
1979                                 tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
1980                                             grc_local_ctrl, 100);
1981                         }
1982
1983                         /* On 5753 and variants, GPIO2 cannot be used. */
1984                         no_gpio2 = tp->nic_sram_data_cfg &
1985                                     NIC_SRAM_DATA_CFG_NO_GPIO2;
1986
1987                         grc_local_ctrl |= GRC_LCLCTRL_GPIO_OE0 |
1988                                          GRC_LCLCTRL_GPIO_OE1 |
1989                                          GRC_LCLCTRL_GPIO_OE2 |
1990                                          GRC_LCLCTRL_GPIO_OUTPUT1 |
1991                                          GRC_LCLCTRL_GPIO_OUTPUT2;
1992                         if (no_gpio2) {
1993                                 grc_local_ctrl &= ~(GRC_LCLCTRL_GPIO_OE2 |
1994                                                     GRC_LCLCTRL_GPIO_OUTPUT2);
1995                         }
1996                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
1997                                                     grc_local_ctrl, 100);
1998
1999                         grc_local_ctrl |= GRC_LCLCTRL_GPIO_OUTPUT0;
2000
2001                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2002                                                     grc_local_ctrl, 100);
2003
2004                         if (!no_gpio2) {
2005                                 grc_local_ctrl &= ~GRC_LCLCTRL_GPIO_OUTPUT2;
2006                                 tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2007                                             grc_local_ctrl, 100);
2008                         }
2009                 }
2010         } else {
2011                 if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700 &&
2012                     GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701) {
2013                         if (tp_peer != tp &&
2014                             (tp_peer->tg3_flags & TG3_FLAG_INIT_COMPLETE) != 0)
2015                                 return;
2016
2017                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2018                                     (GRC_LCLCTRL_GPIO_OE1 |
2019                                      GRC_LCLCTRL_GPIO_OUTPUT1), 100);
2020
2021                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2022                                     GRC_LCLCTRL_GPIO_OE1, 100);
2023
2024                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2025                                     (GRC_LCLCTRL_GPIO_OE1 |
2026                                      GRC_LCLCTRL_GPIO_OUTPUT1), 100);
2027                 }
2028         }
2029 }
2030
2031 static int tg3_5700_link_polarity(struct tg3 *tp, u32 speed)
2032 {
2033         if (tp->led_ctrl == LED_CTRL_MODE_PHY_2)
2034                 return 1;
2035         else if ((tp->phy_id & PHY_ID_MASK) == PHY_ID_BCM5411) {
2036                 if (speed != SPEED_10)
2037                         return 1;
2038         } else if (speed == SPEED_10)
2039                 return 1;
2040
2041         return 0;
2042 }
2043
2044 static int tg3_setup_phy(struct tg3 *, int);
2045
2046 #define RESET_KIND_SHUTDOWN     0
2047 #define RESET_KIND_INIT         1
2048 #define RESET_KIND_SUSPEND      2
2049
2050 static void tg3_write_sig_post_reset(struct tg3 *, int);
2051 static int tg3_halt_cpu(struct tg3 *, u32);
2052 static int tg3_nvram_lock(struct tg3 *);
2053 static void tg3_nvram_unlock(struct tg3 *);
2054
2055 static void tg3_power_down_phy(struct tg3 *tp, bool do_low_power)
2056 {
2057         u32 val;
2058
2059         if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) {
2060                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
2061                         u32 sg_dig_ctrl = tr32(SG_DIG_CTRL);
2062                         u32 serdes_cfg = tr32(MAC_SERDES_CFG);
2063
2064                         sg_dig_ctrl |=
2065                                 SG_DIG_USING_HW_AUTONEG | SG_DIG_SOFT_RESET;
2066                         tw32(SG_DIG_CTRL, sg_dig_ctrl);
2067                         tw32(MAC_SERDES_CFG, serdes_cfg | (1 << 15));
2068                 }
2069                 return;
2070         }
2071
2072         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
2073                 tg3_bmcr_reset(tp);
2074                 val = tr32(GRC_MISC_CFG);
2075                 tw32_f(GRC_MISC_CFG, val | GRC_MISC_CFG_EPHY_IDDQ);
2076                 udelay(40);
2077                 return;
2078         } else if (do_low_power) {
2079                 tg3_writephy(tp, MII_TG3_EXT_CTRL,
2080                              MII_TG3_EXT_CTRL_FORCE_LED_OFF);
2081
2082                 tg3_writephy(tp, MII_TG3_AUX_CTRL,
2083                              MII_TG3_AUXCTL_SHDWSEL_PWRCTL |
2084                              MII_TG3_AUXCTL_PCTL_100TX_LPWR |
2085                              MII_TG3_AUXCTL_PCTL_SPR_ISOLATE |
2086                              MII_TG3_AUXCTL_PCTL_VREG_11V);
2087         }
2088
2089         /* The PHY should not be powered down on some chips because
2090          * of bugs.
2091          */
2092         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
2093             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
2094             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780 &&
2095              (tp->tg3_flags2 & TG3_FLG2_MII_SERDES)))
2096                 return;
2097
2098         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX ||
2099             GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5761_AX) {
2100                 val = tr32(TG3_CPMU_LSPD_1000MB_CLK);
2101                 val &= ~CPMU_LSPD_1000MB_MACCLK_MASK;
2102                 val |= CPMU_LSPD_1000MB_MACCLK_12_5;
2103                 tw32_f(TG3_CPMU_LSPD_1000MB_CLK, val);
2104         }
2105
2106         tg3_writephy(tp, MII_BMCR, BMCR_PDOWN);
2107 }
2108
2109 /* tp->lock is held. */
2110 static void __tg3_set_mac_addr(struct tg3 *tp, int skip_mac_1)
2111 {
2112         u32 addr_high, addr_low;
2113         int i;
2114
2115         addr_high = ((tp->dev->dev_addr[0] << 8) |
2116                      tp->dev->dev_addr[1]);
2117         addr_low = ((tp->dev->dev_addr[2] << 24) |
2118                     (tp->dev->dev_addr[3] << 16) |
2119                     (tp->dev->dev_addr[4] <<  8) |
2120                     (tp->dev->dev_addr[5] <<  0));
2121         for (i = 0; i < 4; i++) {
2122                 if (i == 1 && skip_mac_1)
2123                         continue;
2124                 tw32(MAC_ADDR_0_HIGH + (i * 8), addr_high);
2125                 tw32(MAC_ADDR_0_LOW + (i * 8), addr_low);
2126         }
2127
2128         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
2129             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
2130                 for (i = 0; i < 12; i++) {
2131                         tw32(MAC_EXTADDR_0_HIGH + (i * 8), addr_high);
2132                         tw32(MAC_EXTADDR_0_LOW + (i * 8), addr_low);
2133                 }
2134         }
2135
2136         addr_high = (tp->dev->dev_addr[0] +
2137                      tp->dev->dev_addr[1] +
2138                      tp->dev->dev_addr[2] +
2139                      tp->dev->dev_addr[3] +
2140                      tp->dev->dev_addr[4] +
2141                      tp->dev->dev_addr[5]) &
2142                 TX_BACKOFF_SEED_MASK;
2143         tw32(MAC_TX_BACKOFF_SEED, addr_high);
2144 }
2145
2146 static int tg3_set_power_state(struct tg3 *tp, pci_power_t state)
2147 {
2148         u32 misc_host_ctrl;
2149         bool device_should_wake, do_low_power;
2150
2151         /* Make sure register accesses (indirect or otherwise)
2152          * will function correctly.
2153          */
2154         pci_write_config_dword(tp->pdev,
2155                                TG3PCI_MISC_HOST_CTRL,
2156                                tp->misc_host_ctrl);
2157
2158         switch (state) {
2159         case PCI_D0:
2160                 pci_enable_wake(tp->pdev, state, false);
2161                 pci_set_power_state(tp->pdev, PCI_D0);
2162
2163                 /* Switch out of Vaux if it is a NIC */
2164                 if (tp->tg3_flags2 & TG3_FLG2_IS_NIC)
2165                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl, 100);
2166
2167                 return 0;
2168
2169         case PCI_D1:
2170         case PCI_D2:
2171         case PCI_D3hot:
2172                 break;
2173
2174         default:
2175                 printk(KERN_ERR PFX "%s: Invalid power state (D%d) requested\n",
2176                         tp->dev->name, state);
2177                 return -EINVAL;
2178         }
2179
2180         /* Restore the CLKREQ setting. */
2181         if (tp->tg3_flags3 & TG3_FLG3_CLKREQ_BUG) {
2182                 u16 lnkctl;
2183
2184                 pci_read_config_word(tp->pdev,
2185                                      tp->pcie_cap + PCI_EXP_LNKCTL,
2186                                      &lnkctl);
2187                 lnkctl |= PCI_EXP_LNKCTL_CLKREQ_EN;
2188                 pci_write_config_word(tp->pdev,
2189                                       tp->pcie_cap + PCI_EXP_LNKCTL,
2190                                       lnkctl);
2191         }
2192
2193         misc_host_ctrl = tr32(TG3PCI_MISC_HOST_CTRL);
2194         tw32(TG3PCI_MISC_HOST_CTRL,
2195              misc_host_ctrl | MISC_HOST_CTRL_MASK_PCI_INT);
2196
2197         device_should_wake = pci_pme_capable(tp->pdev, state) &&
2198                              device_may_wakeup(&tp->pdev->dev) &&
2199                              (tp->tg3_flags & TG3_FLAG_WOL_ENABLE);
2200
2201         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
2202                 do_low_power = false;
2203                 if ((tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED) &&
2204                     !tp->link_config.phy_is_low_power) {
2205                         struct phy_device *phydev;
2206                         u32 phyid, advertising;
2207
2208                         phydev = tp->mdio_bus->phy_map[PHY_ADDR];
2209
2210                         tp->link_config.phy_is_low_power = 1;
2211
2212                         tp->link_config.orig_speed = phydev->speed;
2213                         tp->link_config.orig_duplex = phydev->duplex;
2214                         tp->link_config.orig_autoneg = phydev->autoneg;
2215                         tp->link_config.orig_advertising = phydev->advertising;
2216
2217                         advertising = ADVERTISED_TP |
2218                                       ADVERTISED_Pause |
2219                                       ADVERTISED_Autoneg |
2220                                       ADVERTISED_10baseT_Half;
2221
2222                         if ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) ||
2223                             device_should_wake) {
2224                                 if (tp->tg3_flags & TG3_FLAG_WOL_SPEED_100MB)
2225                                         advertising |=
2226                                                 ADVERTISED_100baseT_Half |
2227                                                 ADVERTISED_100baseT_Full |
2228                                                 ADVERTISED_10baseT_Full;
2229                                 else
2230                                         advertising |= ADVERTISED_10baseT_Full;
2231                         }
2232
2233                         phydev->advertising = advertising;
2234
2235                         phy_start_aneg(phydev);
2236
2237                         phyid = phydev->drv->phy_id & phydev->drv->phy_id_mask;
2238                         if (phyid != TG3_PHY_ID_BCMAC131) {
2239                                 phyid &= TG3_PHY_OUI_MASK;
2240                                 if (phyid == TG3_PHY_OUI_1 &&
2241                                     phyid == TG3_PHY_OUI_2 &&
2242                                     phyid == TG3_PHY_OUI_3)
2243                                         do_low_power = true;
2244                         }
2245                 }
2246         } else {
2247                 do_low_power = true;
2248
2249                 if (tp->link_config.phy_is_low_power == 0) {
2250                         tp->link_config.phy_is_low_power = 1;
2251                         tp->link_config.orig_speed = tp->link_config.speed;
2252                         tp->link_config.orig_duplex = tp->link_config.duplex;
2253                         tp->link_config.orig_autoneg = tp->link_config.autoneg;
2254                 }
2255
2256                 if (!(tp->tg3_flags2 & TG3_FLG2_ANY_SERDES)) {
2257                         tp->link_config.speed = SPEED_10;
2258                         tp->link_config.duplex = DUPLEX_HALF;
2259                         tp->link_config.autoneg = AUTONEG_ENABLE;
2260                         tg3_setup_phy(tp, 0);
2261                 }
2262         }
2263
2264         __tg3_set_mac_addr(tp, 0);
2265
2266         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
2267                 u32 val;
2268
2269                 val = tr32(GRC_VCPU_EXT_CTRL);
2270                 tw32(GRC_VCPU_EXT_CTRL, val | GRC_VCPU_EXT_CTRL_DISABLE_WOL);
2271         } else if (!(tp->tg3_flags & TG3_FLAG_ENABLE_ASF)) {
2272                 int i;
2273                 u32 val;
2274
2275                 for (i = 0; i < 200; i++) {
2276                         tg3_read_mem(tp, NIC_SRAM_FW_ASF_STATUS_MBOX, &val);
2277                         if (val == ~NIC_SRAM_FIRMWARE_MBOX_MAGIC1)
2278                                 break;
2279                         msleep(1);
2280                 }
2281         }
2282         if (tp->tg3_flags & TG3_FLAG_WOL_CAP)
2283                 tg3_write_mem(tp, NIC_SRAM_WOL_MBOX, WOL_SIGNATURE |
2284                                                      WOL_DRV_STATE_SHUTDOWN |
2285                                                      WOL_DRV_WOL |
2286                                                      WOL_SET_MAGIC_PKT);
2287
2288         if (device_should_wake) {
2289                 u32 mac_mode;
2290
2291                 if (!(tp->tg3_flags2 & TG3_FLG2_PHY_SERDES)) {
2292                         if (do_low_power) {
2293                                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x5a);
2294                                 udelay(40);
2295                         }
2296
2297                         if (tp->tg3_flags2 & TG3_FLG2_MII_SERDES)
2298                                 mac_mode = MAC_MODE_PORT_MODE_GMII;
2299                         else
2300                                 mac_mode = MAC_MODE_PORT_MODE_MII;
2301
2302                         mac_mode |= tp->mac_mode & MAC_MODE_LINK_POLARITY;
2303                         if (GET_ASIC_REV(tp->pci_chip_rev_id) ==
2304                             ASIC_REV_5700) {
2305                                 u32 speed = (tp->tg3_flags &
2306                                              TG3_FLAG_WOL_SPEED_100MB) ?
2307                                              SPEED_100 : SPEED_10;
2308                                 if (tg3_5700_link_polarity(tp, speed))
2309                                         mac_mode |= MAC_MODE_LINK_POLARITY;
2310                                 else
2311                                         mac_mode &= ~MAC_MODE_LINK_POLARITY;
2312                         }
2313                 } else {
2314                         mac_mode = MAC_MODE_PORT_MODE_TBI;
2315                 }
2316
2317                 if (!(tp->tg3_flags2 & TG3_FLG2_5750_PLUS))
2318                         tw32(MAC_LED_CTRL, tp->led_ctrl);
2319
2320                 mac_mode |= MAC_MODE_MAGIC_PKT_ENABLE;
2321                 if (((tp->tg3_flags2 & TG3_FLG2_5705_PLUS) &&
2322                     !(tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) &&
2323                     ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) ||
2324                      (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)))
2325                         mac_mode |= MAC_MODE_KEEP_FRAME_IN_WOL;
2326
2327                 if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) {
2328                         mac_mode |= tp->mac_mode &
2329                                     (MAC_MODE_APE_TX_EN | MAC_MODE_APE_RX_EN);
2330                         if (mac_mode & MAC_MODE_APE_TX_EN)
2331                                 mac_mode |= MAC_MODE_TDE_ENABLE;
2332                 }
2333
2334                 tw32_f(MAC_MODE, mac_mode);
2335                 udelay(100);
2336
2337                 tw32_f(MAC_RX_MODE, RX_MODE_ENABLE);
2338                 udelay(10);
2339         }
2340
2341         if (!(tp->tg3_flags & TG3_FLAG_WOL_SPEED_100MB) &&
2342             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
2343              GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701)) {
2344                 u32 base_val;
2345
2346                 base_val = tp->pci_clock_ctrl;
2347                 base_val |= (CLOCK_CTRL_RXCLK_DISABLE |
2348                              CLOCK_CTRL_TXCLK_DISABLE);
2349
2350                 tw32_wait_f(TG3PCI_CLOCK_CTRL, base_val | CLOCK_CTRL_ALTCLK |
2351                             CLOCK_CTRL_PWRDOWN_PLL133, 40);
2352         } else if ((tp->tg3_flags2 & TG3_FLG2_5780_CLASS) ||
2353                    (tp->tg3_flags & TG3_FLAG_CPMU_PRESENT) ||
2354                    (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)) {
2355                 /* do nothing */
2356         } else if (!((tp->tg3_flags2 & TG3_FLG2_5750_PLUS) &&
2357                      (tp->tg3_flags & TG3_FLAG_ENABLE_ASF))) {
2358                 u32 newbits1, newbits2;
2359
2360                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
2361                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
2362                         newbits1 = (CLOCK_CTRL_RXCLK_DISABLE |
2363                                     CLOCK_CTRL_TXCLK_DISABLE |
2364                                     CLOCK_CTRL_ALTCLK);
2365                         newbits2 = newbits1 | CLOCK_CTRL_44MHZ_CORE;
2366                 } else if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
2367                         newbits1 = CLOCK_CTRL_625_CORE;
2368                         newbits2 = newbits1 | CLOCK_CTRL_ALTCLK;
2369                 } else {
2370                         newbits1 = CLOCK_CTRL_ALTCLK;
2371                         newbits2 = newbits1 | CLOCK_CTRL_44MHZ_CORE;
2372                 }
2373
2374                 tw32_wait_f(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl | newbits1,
2375                             40);
2376
2377                 tw32_wait_f(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl | newbits2,
2378                             40);
2379
2380                 if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
2381                         u32 newbits3;
2382
2383                         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
2384                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
2385                                 newbits3 = (CLOCK_CTRL_RXCLK_DISABLE |
2386                                             CLOCK_CTRL_TXCLK_DISABLE |
2387                                             CLOCK_CTRL_44MHZ_CORE);
2388                         } else {
2389                                 newbits3 = CLOCK_CTRL_44MHZ_CORE;
2390                         }
2391
2392                         tw32_wait_f(TG3PCI_CLOCK_CTRL,
2393                                     tp->pci_clock_ctrl | newbits3, 40);
2394                 }
2395         }
2396
2397         if (!(device_should_wake) &&
2398             !(tp->tg3_flags & TG3_FLAG_ENABLE_ASF))
2399                 tg3_power_down_phy(tp, do_low_power);
2400
2401         tg3_frob_aux_power(tp);
2402
2403         /* Workaround for unstable PLL clock */
2404         if ((GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5750_AX) ||
2405             (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5750_BX)) {
2406                 u32 val = tr32(0x7d00);
2407
2408                 val &= ~((1 << 16) | (1 << 4) | (1 << 2) | (1 << 1) | 1);
2409                 tw32(0x7d00, val);
2410                 if (!(tp->tg3_flags & TG3_FLAG_ENABLE_ASF)) {
2411                         int err;
2412
2413                         err = tg3_nvram_lock(tp);
2414                         tg3_halt_cpu(tp, RX_CPU_BASE);
2415                         if (!err)
2416                                 tg3_nvram_unlock(tp);
2417                 }
2418         }
2419
2420         tg3_write_sig_post_reset(tp, RESET_KIND_SHUTDOWN);
2421
2422         if (device_should_wake)
2423                 pci_enable_wake(tp->pdev, state, true);
2424
2425         /* Finally, set the new power state. */
2426         pci_set_power_state(tp->pdev, state);
2427
2428         return 0;
2429 }
2430
2431 static void tg3_aux_stat_to_speed_duplex(struct tg3 *tp, u32 val, u16 *speed, u8 *duplex)
2432 {
2433         switch (val & MII_TG3_AUX_STAT_SPDMASK) {
2434         case MII_TG3_AUX_STAT_10HALF:
2435                 *speed = SPEED_10;
2436                 *duplex = DUPLEX_HALF;
2437                 break;
2438
2439         case MII_TG3_AUX_STAT_10FULL:
2440                 *speed = SPEED_10;
2441                 *duplex = DUPLEX_FULL;
2442                 break;
2443
2444         case MII_TG3_AUX_STAT_100HALF:
2445                 *speed = SPEED_100;
2446                 *duplex = DUPLEX_HALF;
2447                 break;
2448
2449         case MII_TG3_AUX_STAT_100FULL:
2450                 *speed = SPEED_100;
2451                 *duplex = DUPLEX_FULL;
2452                 break;
2453
2454         case MII_TG3_AUX_STAT_1000HALF:
2455                 *speed = SPEED_1000;
2456                 *duplex = DUPLEX_HALF;
2457                 break;
2458
2459         case MII_TG3_AUX_STAT_1000FULL:
2460                 *speed = SPEED_1000;
2461                 *duplex = DUPLEX_FULL;
2462                 break;
2463
2464         default:
2465                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
2466                         *speed = (val & MII_TG3_AUX_STAT_100) ? SPEED_100 :
2467                                  SPEED_10;
2468                         *duplex = (val & MII_TG3_AUX_STAT_FULL) ? DUPLEX_FULL :
2469                                   DUPLEX_HALF;
2470                         break;
2471                 }
2472                 *speed = SPEED_INVALID;
2473                 *duplex = DUPLEX_INVALID;
2474                 break;
2475         }
2476 }
2477
2478 static void tg3_phy_copper_begin(struct tg3 *tp)
2479 {
2480         u32 new_adv;
2481         int i;
2482
2483         if (tp->link_config.phy_is_low_power) {
2484                 /* Entering low power mode.  Disable gigabit and
2485                  * 100baseT advertisements.
2486                  */
2487                 tg3_writephy(tp, MII_TG3_CTRL, 0);
2488
2489                 new_adv = (ADVERTISE_10HALF | ADVERTISE_10FULL |
2490                            ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
2491                 if (tp->tg3_flags & TG3_FLAG_WOL_SPEED_100MB)
2492                         new_adv |= (ADVERTISE_100HALF | ADVERTISE_100FULL);
2493
2494                 tg3_writephy(tp, MII_ADVERTISE, new_adv);
2495         } else if (tp->link_config.speed == SPEED_INVALID) {
2496                 if (tp->tg3_flags & TG3_FLAG_10_100_ONLY)
2497                         tp->link_config.advertising &=
2498                                 ~(ADVERTISED_1000baseT_Half |
2499                                   ADVERTISED_1000baseT_Full);
2500
2501                 new_adv = ADVERTISE_CSMA;
2502                 if (tp->link_config.advertising & ADVERTISED_10baseT_Half)
2503                         new_adv |= ADVERTISE_10HALF;
2504                 if (tp->link_config.advertising & ADVERTISED_10baseT_Full)
2505                         new_adv |= ADVERTISE_10FULL;
2506                 if (tp->link_config.advertising & ADVERTISED_100baseT_Half)
2507                         new_adv |= ADVERTISE_100HALF;
2508                 if (tp->link_config.advertising & ADVERTISED_100baseT_Full)
2509                         new_adv |= ADVERTISE_100FULL;
2510
2511                 new_adv |= tg3_advert_flowctrl_1000T(tp->link_config.flowctrl);
2512
2513                 tg3_writephy(tp, MII_ADVERTISE, new_adv);
2514
2515                 if (tp->link_config.advertising &
2516                     (ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full)) {
2517                         new_adv = 0;
2518                         if (tp->link_config.advertising & ADVERTISED_1000baseT_Half)
2519                                 new_adv |= MII_TG3_CTRL_ADV_1000_HALF;
2520                         if (tp->link_config.advertising & ADVERTISED_1000baseT_Full)
2521                                 new_adv |= MII_TG3_CTRL_ADV_1000_FULL;
2522                         if (!(tp->tg3_flags & TG3_FLAG_10_100_ONLY) &&
2523                             (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
2524                              tp->pci_chip_rev_id == CHIPREV_ID_5701_B0))
2525                                 new_adv |= (MII_TG3_CTRL_AS_MASTER |
2526                                             MII_TG3_CTRL_ENABLE_AS_MASTER);
2527                         tg3_writephy(tp, MII_TG3_CTRL, new_adv);
2528                 } else {
2529                         tg3_writephy(tp, MII_TG3_CTRL, 0);
2530                 }
2531         } else {
2532                 new_adv = tg3_advert_flowctrl_1000T(tp->link_config.flowctrl);
2533                 new_adv |= ADVERTISE_CSMA;
2534
2535                 /* Asking for a specific link mode. */
2536                 if (tp->link_config.speed == SPEED_1000) {
2537                         tg3_writephy(tp, MII_ADVERTISE, new_adv);
2538
2539                         if (tp->link_config.duplex == DUPLEX_FULL)
2540                                 new_adv = MII_TG3_CTRL_ADV_1000_FULL;
2541                         else
2542                                 new_adv = MII_TG3_CTRL_ADV_1000_HALF;
2543                         if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
2544                             tp->pci_chip_rev_id == CHIPREV_ID_5701_B0)
2545                                 new_adv |= (MII_TG3_CTRL_AS_MASTER |
2546                                             MII_TG3_CTRL_ENABLE_AS_MASTER);
2547                 } else {
2548                         if (tp->link_config.speed == SPEED_100) {
2549                                 if (tp->link_config.duplex == DUPLEX_FULL)
2550                                         new_adv |= ADVERTISE_100FULL;
2551                                 else
2552                                         new_adv |= ADVERTISE_100HALF;
2553                         } else {
2554                                 if (tp->link_config.duplex == DUPLEX_FULL)
2555                                         new_adv |= ADVERTISE_10FULL;
2556                                 else
2557                                         new_adv |= ADVERTISE_10HALF;
2558                         }
2559                         tg3_writephy(tp, MII_ADVERTISE, new_adv);
2560
2561                         new_adv = 0;
2562                 }
2563
2564                 tg3_writephy(tp, MII_TG3_CTRL, new_adv);
2565         }
2566
2567         if (tp->link_config.autoneg == AUTONEG_DISABLE &&
2568             tp->link_config.speed != SPEED_INVALID) {
2569                 u32 bmcr, orig_bmcr;
2570
2571                 tp->link_config.active_speed = tp->link_config.speed;
2572                 tp->link_config.active_duplex = tp->link_config.duplex;
2573
2574                 bmcr = 0;
2575                 switch (tp->link_config.speed) {
2576                 default:
2577                 case SPEED_10:
2578                         break;
2579
2580                 case SPEED_100:
2581                         bmcr |= BMCR_SPEED100;
2582                         break;
2583
2584                 case SPEED_1000:
2585                         bmcr |= TG3_BMCR_SPEED1000;
2586                         break;
2587                 }
2588
2589                 if (tp->link_config.duplex == DUPLEX_FULL)
2590                         bmcr |= BMCR_FULLDPLX;
2591
2592                 if (!tg3_readphy(tp, MII_BMCR, &orig_bmcr) &&
2593                     (bmcr != orig_bmcr)) {
2594                         tg3_writephy(tp, MII_BMCR, BMCR_LOOPBACK);
2595                         for (i = 0; i < 1500; i++) {
2596                                 u32 tmp;
2597
2598                                 udelay(10);
2599                                 if (tg3_readphy(tp, MII_BMSR, &tmp) ||
2600                                     tg3_readphy(tp, MII_BMSR, &tmp))
2601                                         continue;
2602                                 if (!(tmp & BMSR_LSTATUS)) {
2603                                         udelay(40);
2604                                         break;
2605                                 }
2606                         }
2607                         tg3_writephy(tp, MII_BMCR, bmcr);
2608                         udelay(40);
2609                 }
2610         } else {
2611                 tg3_writephy(tp, MII_BMCR,
2612                              BMCR_ANENABLE | BMCR_ANRESTART);
2613         }
2614 }
2615
2616 static int tg3_init_5401phy_dsp(struct tg3 *tp)
2617 {
2618         int err;
2619
2620         /* Turn off tap power management. */
2621         /* Set Extended packet length bit */
2622         err  = tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x4c20);
2623
2624         err |= tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x0012);
2625         err |= tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x1804);
2626
2627         err |= tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x0013);
2628         err |= tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x1204);
2629
2630         err |= tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x8006);
2631         err |= tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x0132);
2632
2633         err |= tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x8006);
2634         err |= tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x0232);
2635
2636         err |= tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x201f);
2637         err |= tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x0a20);
2638
2639         udelay(40);
2640
2641         return err;
2642 }
2643
2644 static int tg3_copper_is_advertising_all(struct tg3 *tp, u32 mask)
2645 {
2646         u32 adv_reg, all_mask = 0;
2647
2648         if (mask & ADVERTISED_10baseT_Half)
2649                 all_mask |= ADVERTISE_10HALF;
2650         if (mask & ADVERTISED_10baseT_Full)
2651                 all_mask |= ADVERTISE_10FULL;
2652         if (mask & ADVERTISED_100baseT_Half)
2653                 all_mask |= ADVERTISE_100HALF;
2654         if (mask & ADVERTISED_100baseT_Full)
2655                 all_mask |= ADVERTISE_100FULL;
2656
2657         if (tg3_readphy(tp, MII_ADVERTISE, &adv_reg))
2658                 return 0;
2659
2660         if ((adv_reg & all_mask) != all_mask)
2661                 return 0;
2662         if (!(tp->tg3_flags & TG3_FLAG_10_100_ONLY)) {
2663                 u32 tg3_ctrl;
2664
2665                 all_mask = 0;
2666                 if (mask & ADVERTISED_1000baseT_Half)
2667                         all_mask |= ADVERTISE_1000HALF;
2668                 if (mask & ADVERTISED_1000baseT_Full)
2669                         all_mask |= ADVERTISE_1000FULL;
2670
2671                 if (tg3_readphy(tp, MII_TG3_CTRL, &tg3_ctrl))
2672                         return 0;
2673
2674                 if ((tg3_ctrl & all_mask) != all_mask)
2675                         return 0;
2676         }
2677         return 1;
2678 }
2679
2680 static int tg3_adv_1000T_flowctrl_ok(struct tg3 *tp, u32 *lcladv, u32 *rmtadv)
2681 {
2682         u32 curadv, reqadv;
2683
2684         if (tg3_readphy(tp, MII_ADVERTISE, lcladv))
2685                 return 1;
2686
2687         curadv = *lcladv & (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
2688         reqadv = tg3_advert_flowctrl_1000T(tp->link_config.flowctrl);
2689
2690         if (tp->link_config.active_duplex == DUPLEX_FULL) {
2691                 if (curadv != reqadv)
2692                         return 0;
2693
2694                 if (tp->tg3_flags & TG3_FLAG_PAUSE_AUTONEG)
2695                         tg3_readphy(tp, MII_LPA, rmtadv);
2696         } else {
2697                 /* Reprogram the advertisement register, even if it
2698                  * does not affect the current link.  If the link
2699                  * gets renegotiated in the future, we can save an
2700                  * additional renegotiation cycle by advertising
2701                  * it correctly in the first place.
2702                  */
2703                 if (curadv != reqadv) {
2704                         *lcladv &= ~(ADVERTISE_PAUSE_CAP |
2705                                      ADVERTISE_PAUSE_ASYM);
2706                         tg3_writephy(tp, MII_ADVERTISE, *lcladv | reqadv);
2707                 }
2708         }
2709
2710         return 1;
2711 }
2712
2713 static int tg3_setup_copper_phy(struct tg3 *tp, int force_reset)
2714 {
2715         int current_link_up;
2716         u32 bmsr, dummy;
2717         u32 lcl_adv, rmt_adv;
2718         u16 current_speed;
2719         u8 current_duplex;
2720         int i, err;
2721
2722         tw32(MAC_EVENT, 0);
2723
2724         tw32_f(MAC_STATUS,
2725              (MAC_STATUS_SYNC_CHANGED |
2726               MAC_STATUS_CFG_CHANGED |
2727               MAC_STATUS_MI_COMPLETION |
2728               MAC_STATUS_LNKSTATE_CHANGED));
2729         udelay(40);
2730
2731         if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
2732                 tw32_f(MAC_MI_MODE,
2733                      (tp->mi_mode & ~MAC_MI_MODE_AUTO_POLL));
2734                 udelay(80);
2735         }
2736
2737         tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x02);
2738
2739         /* Some third-party PHYs need to be reset on link going
2740          * down.
2741          */
2742         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
2743              GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
2744              GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) &&
2745             netif_carrier_ok(tp->dev)) {
2746                 tg3_readphy(tp, MII_BMSR, &bmsr);
2747                 if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
2748                     !(bmsr & BMSR_LSTATUS))
2749                         force_reset = 1;
2750         }
2751         if (force_reset)
2752                 tg3_phy_reset(tp);
2753
2754         if ((tp->phy_id & PHY_ID_MASK) == PHY_ID_BCM5401) {
2755                 tg3_readphy(tp, MII_BMSR, &bmsr);
2756                 if (tg3_readphy(tp, MII_BMSR, &bmsr) ||
2757                     !(tp->tg3_flags & TG3_FLAG_INIT_COMPLETE))
2758                         bmsr = 0;
2759
2760                 if (!(bmsr & BMSR_LSTATUS)) {
2761                         err = tg3_init_5401phy_dsp(tp);
2762                         if (err)
2763                                 return err;
2764
2765                         tg3_readphy(tp, MII_BMSR, &bmsr);
2766                         for (i = 0; i < 1000; i++) {
2767                                 udelay(10);
2768                                 if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
2769                                     (bmsr & BMSR_LSTATUS)) {
2770                                         udelay(40);
2771                                         break;
2772                                 }
2773                         }
2774
2775                         if ((tp->phy_id & PHY_ID_REV_MASK) == PHY_REV_BCM5401_B0 &&
2776                             !(bmsr & BMSR_LSTATUS) &&
2777                             tp->link_config.active_speed == SPEED_1000) {
2778                                 err = tg3_phy_reset(tp);
2779                                 if (!err)
2780                                         err = tg3_init_5401phy_dsp(tp);
2781                                 if (err)
2782                                         return err;
2783                         }
2784                 }
2785         } else if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
2786                    tp->pci_chip_rev_id == CHIPREV_ID_5701_B0) {
2787                 /* 5701 {A0,B0} CRC bug workaround */
2788                 tg3_writephy(tp, 0x15, 0x0a75);
2789                 tg3_writephy(tp, 0x1c, 0x8c68);
2790                 tg3_writephy(tp, 0x1c, 0x8d68);
2791                 tg3_writephy(tp, 0x1c, 0x8c68);
2792         }
2793
2794         /* Clear pending interrupts... */
2795         tg3_readphy(tp, MII_TG3_ISTAT, &dummy);
2796         tg3_readphy(tp, MII_TG3_ISTAT, &dummy);
2797
2798         if (tp->tg3_flags & TG3_FLAG_USE_MI_INTERRUPT)
2799                 tg3_writephy(tp, MII_TG3_IMASK, ~MII_TG3_INT_LINKCHG);
2800         else if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5906)
2801                 tg3_writephy(tp, MII_TG3_IMASK, ~0);
2802
2803         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
2804             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
2805                 if (tp->led_ctrl == LED_CTRL_MODE_PHY_1)
2806                         tg3_writephy(tp, MII_TG3_EXT_CTRL,
2807                                      MII_TG3_EXT_CTRL_LNK3_LED_MODE);
2808                 else
2809                         tg3_writephy(tp, MII_TG3_EXT_CTRL, 0);
2810         }
2811
2812         current_link_up = 0;
2813         current_speed = SPEED_INVALID;
2814         current_duplex = DUPLEX_INVALID;
2815
2816         if (tp->tg3_flags2 & TG3_FLG2_CAPACITIVE_COUPLING) {
2817                 u32 val;
2818
2819                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x4007);
2820                 tg3_readphy(tp, MII_TG3_AUX_CTRL, &val);
2821                 if (!(val & (1 << 10))) {
2822                         val |= (1 << 10);
2823                         tg3_writephy(tp, MII_TG3_AUX_CTRL, val);
2824                         goto relink;
2825                 }
2826         }
2827
2828         bmsr = 0;
2829         for (i = 0; i < 100; i++) {
2830                 tg3_readphy(tp, MII_BMSR, &bmsr);
2831                 if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
2832                     (bmsr & BMSR_LSTATUS))
2833                         break;
2834                 udelay(40);
2835         }
2836
2837         if (bmsr & BMSR_LSTATUS) {
2838                 u32 aux_stat, bmcr;
2839
2840                 tg3_readphy(tp, MII_TG3_AUX_STAT, &aux_stat);
2841                 for (i = 0; i < 2000; i++) {
2842                         udelay(10);
2843                         if (!tg3_readphy(tp, MII_TG3_AUX_STAT, &aux_stat) &&
2844                             aux_stat)
2845                                 break;
2846                 }
2847
2848                 tg3_aux_stat_to_speed_duplex(tp, aux_stat,
2849                                              &current_speed,
2850                                              &current_duplex);
2851
2852                 bmcr = 0;
2853                 for (i = 0; i < 200; i++) {
2854                         tg3_readphy(tp, MII_BMCR, &bmcr);
2855                         if (tg3_readphy(tp, MII_BMCR, &bmcr))
2856                                 continue;
2857                         if (bmcr && bmcr != 0x7fff)
2858                                 break;
2859                         udelay(10);
2860                 }
2861
2862                 lcl_adv = 0;
2863                 rmt_adv = 0;
2864
2865                 tp->link_config.active_speed = current_speed;
2866                 tp->link_config.active_duplex = current_duplex;
2867
2868                 if (tp->link_config.autoneg == AUTONEG_ENABLE) {
2869                         if ((bmcr & BMCR_ANENABLE) &&
2870                             tg3_copper_is_advertising_all(tp,
2871                                                 tp->link_config.advertising)) {
2872                                 if (tg3_adv_1000T_flowctrl_ok(tp, &lcl_adv,
2873                                                                   &rmt_adv))
2874                                         current_link_up = 1;
2875                         }
2876                 } else {
2877                         if (!(bmcr & BMCR_ANENABLE) &&
2878                             tp->link_config.speed == current_speed &&
2879                             tp->link_config.duplex == current_duplex &&
2880                             tp->link_config.flowctrl ==
2881                             tp->link_config.active_flowctrl) {
2882                                 current_link_up = 1;
2883                         }
2884                 }
2885
2886                 if (current_link_up == 1 &&
2887                     tp->link_config.active_duplex == DUPLEX_FULL)
2888                         tg3_setup_flow_control(tp, lcl_adv, rmt_adv);
2889         }
2890
2891 relink:
2892         if (current_link_up == 0 || tp->link_config.phy_is_low_power) {
2893                 u32 tmp;
2894
2895                 tg3_phy_copper_begin(tp);
2896
2897                 tg3_readphy(tp, MII_BMSR, &tmp);
2898                 if (!tg3_readphy(tp, MII_BMSR, &tmp) &&
2899                     (tmp & BMSR_LSTATUS))
2900                         current_link_up = 1;
2901         }
2902
2903         tp->mac_mode &= ~MAC_MODE_PORT_MODE_MASK;
2904         if (current_link_up == 1) {
2905                 if (tp->link_config.active_speed == SPEED_100 ||
2906                     tp->link_config.active_speed == SPEED_10)
2907                         tp->mac_mode |= MAC_MODE_PORT_MODE_MII;
2908                 else
2909                         tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
2910         } else
2911                 tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
2912
2913         tp->mac_mode &= ~MAC_MODE_HALF_DUPLEX;
2914         if (tp->link_config.active_duplex == DUPLEX_HALF)
2915                 tp->mac_mode |= MAC_MODE_HALF_DUPLEX;
2916
2917         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700) {
2918                 if (current_link_up == 1 &&
2919                     tg3_5700_link_polarity(tp, tp->link_config.active_speed))
2920                         tp->mac_mode |= MAC_MODE_LINK_POLARITY;
2921                 else
2922                         tp->mac_mode &= ~MAC_MODE_LINK_POLARITY;
2923         }
2924
2925         /* ??? Without this setting Netgear GA302T PHY does not
2926          * ??? send/receive packets...
2927          */
2928         if ((tp->phy_id & PHY_ID_MASK) == PHY_ID_BCM5411 &&
2929             tp->pci_chip_rev_id == CHIPREV_ID_5700_ALTIMA) {
2930                 tp->mi_mode |= MAC_MI_MODE_AUTO_POLL;
2931                 tw32_f(MAC_MI_MODE, tp->mi_mode);
2932                 udelay(80);
2933         }
2934
2935         tw32_f(MAC_MODE, tp->mac_mode);
2936         udelay(40);
2937
2938         if (tp->tg3_flags & TG3_FLAG_USE_LINKCHG_REG) {
2939                 /* Polled via timer. */
2940                 tw32_f(MAC_EVENT, 0);
2941         } else {
2942                 tw32_f(MAC_EVENT, MAC_EVENT_LNKSTATE_CHANGED);
2943         }
2944         udelay(40);
2945
2946         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 &&
2947             current_link_up == 1 &&
2948             tp->link_config.active_speed == SPEED_1000 &&
2949             ((tp->tg3_flags & TG3_FLAG_PCIX_MODE) ||
2950              (tp->tg3_flags & TG3_FLAG_PCI_HIGH_SPEED))) {
2951                 udelay(120);
2952                 tw32_f(MAC_STATUS,
2953                      (MAC_STATUS_SYNC_CHANGED |
2954                       MAC_STATUS_CFG_CHANGED));
2955                 udelay(40);
2956                 tg3_write_mem(tp,
2957                               NIC_SRAM_FIRMWARE_MBOX,
2958                               NIC_SRAM_FIRMWARE_MBOX_MAGIC2);
2959         }
2960
2961         /* Prevent send BD corruption. */
2962         if (tp->tg3_flags3 & TG3_FLG3_CLKREQ_BUG) {
2963                 u16 oldlnkctl, newlnkctl;
2964
2965                 pci_read_config_word(tp->pdev,
2966                                      tp->pcie_cap + PCI_EXP_LNKCTL,
2967                                      &oldlnkctl);
2968                 if (tp->link_config.active_speed == SPEED_100 ||
2969                     tp->link_config.active_speed == SPEED_10)
2970                         newlnkctl = oldlnkctl & ~PCI_EXP_LNKCTL_CLKREQ_EN;
2971                 else
2972                         newlnkctl = oldlnkctl | PCI_EXP_LNKCTL_CLKREQ_EN;
2973                 if (newlnkctl != oldlnkctl)
2974                         pci_write_config_word(tp->pdev,
2975                                               tp->pcie_cap + PCI_EXP_LNKCTL,
2976                                               newlnkctl);
2977         }
2978
2979         if (current_link_up != netif_carrier_ok(tp->dev)) {
2980                 if (current_link_up)
2981                         netif_carrier_on(tp->dev);
2982                 else
2983                         netif_carrier_off(tp->dev);
2984                 tg3_link_report(tp);
2985         }
2986
2987         return 0;
2988 }
2989
2990 struct tg3_fiber_aneginfo {
2991         int state;
2992 #define ANEG_STATE_UNKNOWN              0
2993 #define ANEG_STATE_AN_ENABLE            1
2994 #define ANEG_STATE_RESTART_INIT         2
2995 #define ANEG_STATE_RESTART              3
2996 #define ANEG_STATE_DISABLE_LINK_OK      4
2997 #define ANEG_STATE_ABILITY_DETECT_INIT  5
2998 #define ANEG_STATE_ABILITY_DETECT       6
2999 #define ANEG_STATE_ACK_DETECT_INIT      7
3000 #define ANEG_STATE_ACK_DETECT           8
3001 #define ANEG_STATE_COMPLETE_ACK_INIT    9
3002 #define ANEG_STATE_COMPLETE_ACK         10
3003 #define ANEG_STATE_IDLE_DETECT_INIT     11
3004 #define ANEG_STATE_IDLE_DETECT          12
3005 #define ANEG_STATE_LINK_OK              13
3006 #define ANEG_STATE_NEXT_PAGE_WAIT_INIT  14
3007 #define ANEG_STATE_NEXT_PAGE_WAIT       15
3008
3009         u32 flags;
3010 #define MR_AN_ENABLE            0x00000001
3011 #define MR_RESTART_AN           0x00000002
3012 #define MR_AN_COMPLETE          0x00000004
3013 #define MR_PAGE_RX              0x00000008
3014 #define MR_NP_LOADED            0x00000010
3015 #define MR_TOGGLE_TX            0x00000020
3016 #define MR_LP_ADV_FULL_DUPLEX   0x00000040
3017 #define MR_LP_ADV_HALF_DUPLEX   0x00000080
3018 #define MR_LP_ADV_SYM_PAUSE     0x00000100
3019 #define MR_LP_ADV_ASYM_PAUSE    0x00000200
3020 #define MR_LP_ADV_REMOTE_FAULT1 0x00000400
3021 #define MR_LP_ADV_REMOTE_FAULT2 0x00000800
3022 #define MR_LP_ADV_NEXT_PAGE     0x00001000
3023 #define MR_TOGGLE_RX            0x00002000
3024 #define MR_NP_RX                0x00004000
3025
3026 #define MR_LINK_OK              0x80000000
3027
3028         unsigned long link_time, cur_time;
3029
3030         u32 ability_match_cfg;
3031         int ability_match_count;
3032
3033         char ability_match, idle_match, ack_match;
3034
3035         u32 txconfig, rxconfig;
3036 #define ANEG_CFG_NP             0x00000080
3037 #define ANEG_CFG_ACK            0x00000040
3038 #define ANEG_CFG_RF2            0x00000020
3039 #define ANEG_CFG_RF1            0x00000010
3040 #define ANEG_CFG_PS2            0x00000001
3041 #define ANEG_CFG_PS1            0x00008000
3042 #define ANEG_CFG_HD             0x00004000
3043 #define ANEG_CFG_FD             0x00002000
3044 #define ANEG_CFG_INVAL          0x00001f06
3045
3046 };
3047 #define ANEG_OK         0
3048 #define ANEG_DONE       1
3049 #define ANEG_TIMER_ENAB 2
3050 #define ANEG_FAILED     -1
3051
3052 #define ANEG_STATE_SETTLE_TIME  10000
3053
3054 static int tg3_fiber_aneg_smachine(struct tg3 *tp,
3055                                    struct tg3_fiber_aneginfo *ap)
3056 {
3057         u16 flowctrl;
3058         unsigned long delta;
3059         u32 rx_cfg_reg;
3060         int ret;
3061
3062         if (ap->state == ANEG_STATE_UNKNOWN) {
3063                 ap->rxconfig = 0;
3064                 ap->link_time = 0;
3065                 ap->cur_time = 0;
3066                 ap->ability_match_cfg = 0;
3067                 ap->ability_match_count = 0;
3068                 ap->ability_match = 0;
3069                 ap->idle_match = 0;
3070                 ap->ack_match = 0;
3071         }
3072         ap->cur_time++;
3073
3074         if (tr32(MAC_STATUS) & MAC_STATUS_RCVD_CFG) {
3075                 rx_cfg_reg = tr32(MAC_RX_AUTO_NEG);
3076
3077                 if (rx_cfg_reg != ap->ability_match_cfg) {
3078                         ap->ability_match_cfg = rx_cfg_reg;
3079                         ap->ability_match = 0;
3080                         ap->ability_match_count = 0;
3081                 } else {
3082                         if (++ap->ability_match_count > 1) {
3083                                 ap->ability_match = 1;
3084                                 ap->ability_match_cfg = rx_cfg_reg;
3085                         }
3086                 }
3087                 if (rx_cfg_reg & ANEG_CFG_ACK)
3088                         ap->ack_match = 1;
3089                 else
3090                         ap->ack_match = 0;
3091
3092                 ap->idle_match = 0;
3093         } else {
3094                 ap->idle_match = 1;
3095                 ap->ability_match_cfg = 0;
3096                 ap->ability_match_count = 0;
3097                 ap->ability_match = 0;
3098                 ap->ack_match = 0;
3099
3100                 rx_cfg_reg = 0;
3101         }
3102
3103         ap->rxconfig = rx_cfg_reg;
3104         ret = ANEG_OK;
3105
3106         switch(ap->state) {
3107         case ANEG_STATE_UNKNOWN:
3108                 if (ap->flags & (MR_AN_ENABLE | MR_RESTART_AN))
3109                         ap->state = ANEG_STATE_AN_ENABLE;
3110
3111                 /* fallthru */
3112         case ANEG_STATE_AN_ENABLE:
3113                 ap->flags &= ~(MR_AN_COMPLETE | MR_PAGE_RX);
3114                 if (ap->flags & MR_AN_ENABLE) {
3115                         ap->link_time = 0;
3116                         ap->cur_time = 0;
3117                         ap->ability_match_cfg = 0;
3118                         ap->ability_match_count = 0;
3119                         ap->ability_match = 0;
3120                         ap->idle_match = 0;
3121                         ap->ack_match = 0;
3122
3123                         ap->state = ANEG_STATE_RESTART_INIT;
3124                 } else {
3125                         ap->state = ANEG_STATE_DISABLE_LINK_OK;
3126                 }
3127                 break;
3128
3129         case ANEG_STATE_RESTART_INIT:
3130                 ap->link_time = ap->cur_time;
3131                 ap->flags &= ~(MR_NP_LOADED);
3132                 ap->txconfig = 0;
3133                 tw32(MAC_TX_AUTO_NEG, 0);
3134                 tp->mac_mode |= MAC_MODE_SEND_CONFIGS;
3135                 tw32_f(MAC_MODE, tp->mac_mode);
3136                 udelay(40);
3137
3138                 ret = ANEG_TIMER_ENAB;
3139                 ap->state = ANEG_STATE_RESTART;
3140
3141                 /* fallthru */
3142         case ANEG_STATE_RESTART:
3143                 delta = ap->cur_time - ap->link_time;
3144                 if (delta > ANEG_STATE_SETTLE_TIME) {
3145                         ap->state = ANEG_STATE_ABILITY_DETECT_INIT;
3146                 } else {
3147                         ret = ANEG_TIMER_ENAB;
3148                 }
3149                 break;
3150
3151         case ANEG_STATE_DISABLE_LINK_OK:
3152                 ret = ANEG_DONE;
3153                 break;
3154
3155         case ANEG_STATE_ABILITY_DETECT_INIT:
3156                 ap->flags &= ~(MR_TOGGLE_TX);
3157                 ap->txconfig = ANEG_CFG_FD;
3158                 flowctrl = tg3_advert_flowctrl_1000X(tp->link_config.flowctrl);
3159                 if (flowctrl & ADVERTISE_1000XPAUSE)
3160                         ap->txconfig |= ANEG_CFG_PS1;
3161                 if (flowctrl & ADVERTISE_1000XPSE_ASYM)
3162                         ap->txconfig |= ANEG_CFG_PS2;
3163                 tw32(MAC_TX_AUTO_NEG, ap->txconfig);
3164                 tp->mac_mode |= MAC_MODE_SEND_CONFIGS;
3165                 tw32_f(MAC_MODE, tp->mac_mode);
3166                 udelay(40);
3167
3168                 ap->state = ANEG_STATE_ABILITY_DETECT;
3169                 break;
3170
3171         case ANEG_STATE_ABILITY_DETECT:
3172                 if (ap->ability_match != 0 && ap->rxconfig != 0) {
3173                         ap->state = ANEG_STATE_ACK_DETECT_INIT;
3174                 }
3175                 break;
3176
3177         case ANEG_STATE_ACK_DETECT_INIT:
3178                 ap->txconfig |= ANEG_CFG_ACK;
3179                 tw32(MAC_TX_AUTO_NEG, ap->txconfig);
3180                 tp->mac_mode |= MAC_MODE_SEND_CONFIGS;
3181                 tw32_f(MAC_MODE, tp->mac_mode);
3182                 udelay(40);
3183
3184                 ap->state = ANEG_STATE_ACK_DETECT;
3185
3186                 /* fallthru */
3187         case ANEG_STATE_ACK_DETECT:
3188                 if (ap->ack_match != 0) {
3189                         if ((ap->rxconfig & ~ANEG_CFG_ACK) ==
3190                             (ap->ability_match_cfg & ~ANEG_CFG_ACK)) {
3191                                 ap->state = ANEG_STATE_COMPLETE_ACK_INIT;
3192                         } else {
3193                                 ap->state = ANEG_STATE_AN_ENABLE;
3194                         }
3195                 } else if (ap->ability_match != 0 &&
3196                            ap->rxconfig == 0) {
3197                         ap->state = ANEG_STATE_AN_ENABLE;
3198                 }
3199                 break;
3200
3201         case ANEG_STATE_COMPLETE_ACK_INIT:
3202                 if (ap->rxconfig & ANEG_CFG_INVAL) {
3203                         ret = ANEG_FAILED;
3204                         break;
3205                 }
3206                 ap->flags &= ~(MR_LP_ADV_FULL_DUPLEX |
3207                                MR_LP_ADV_HALF_DUPLEX |
3208                                MR_LP_ADV_SYM_PAUSE |
3209                                MR_LP_ADV_ASYM_PAUSE |
3210                                MR_LP_ADV_REMOTE_FAULT1 |
3211                                MR_LP_ADV_REMOTE_FAULT2 |
3212                                MR_LP_ADV_NEXT_PAGE |
3213                                MR_TOGGLE_RX |
3214                                MR_NP_RX);
3215                 if (ap->rxconfig & ANEG_CFG_FD)
3216                         ap->flags |= MR_LP_ADV_FULL_DUPLEX;
3217                 if (ap->rxconfig & ANEG_CFG_HD)
3218                         ap->flags |= MR_LP_ADV_HALF_DUPLEX;
3219                 if (ap->rxconfig & ANEG_CFG_PS1)
3220                         ap->flags |= MR_LP_ADV_SYM_PAUSE;
3221                 if (ap->rxconfig & ANEG_CFG_PS2)
3222                         ap->flags |= MR_LP_ADV_ASYM_PAUSE;
3223                 if (ap->rxconfig & ANEG_CFG_RF1)
3224                         ap->flags |= MR_LP_ADV_REMOTE_FAULT1;
3225                 if (ap->rxconfig & ANEG_CFG_RF2)
3226                         ap->flags |= MR_LP_ADV_REMOTE_FAULT2;
3227                 if (ap->rxconfig & ANEG_CFG_NP)
3228                         ap->flags |= MR_LP_ADV_NEXT_PAGE;
3229
3230                 ap->link_time = ap->cur_time;
3231
3232                 ap->flags ^= (MR_TOGGLE_TX);
3233                 if (ap->rxconfig & 0x0008)
3234                         ap->flags |= MR_TOGGLE_RX;
3235                 if (ap->rxconfig & ANEG_CFG_NP)
3236                         ap->flags |= MR_NP_RX;
3237                 ap->flags |= MR_PAGE_RX;
3238
3239                 ap->state = ANEG_STATE_COMPLETE_ACK;
3240                 ret = ANEG_TIMER_ENAB;
3241                 break;
3242
3243         case ANEG_STATE_COMPLETE_ACK:
3244                 if (ap->ability_match != 0 &&
3245                     ap->rxconfig == 0) {
3246                         ap->state = ANEG_STATE_AN_ENABLE;
3247                         break;
3248                 }
3249                 delta = ap->cur_time - ap->link_time;
3250                 if (delta > ANEG_STATE_SETTLE_TIME) {
3251                         if (!(ap->flags & (MR_LP_ADV_NEXT_PAGE))) {
3252                                 ap->state = ANEG_STATE_IDLE_DETECT_INIT;
3253                         } else {
3254                                 if ((ap->txconfig & ANEG_CFG_NP) == 0 &&
3255                                     !(ap->flags & MR_NP_RX)) {
3256                                         ap->state = ANEG_STATE_IDLE_DETECT_INIT;
3257                                 } else {
3258                                         ret = ANEG_FAILED;
3259                                 }
3260                         }
3261                 }
3262                 break;
3263
3264         case ANEG_STATE_IDLE_DETECT_INIT:
3265                 ap->link_time = ap->cur_time;
3266                 tp->mac_mode &= ~MAC_MODE_SEND_CONFIGS;
3267                 tw32_f(MAC_MODE, tp->mac_mode);
3268                 udelay(40);
3269
3270                 ap->state = ANEG_STATE_IDLE_DETECT;
3271                 ret = ANEG_TIMER_ENAB;
3272                 break;
3273
3274         case ANEG_STATE_IDLE_DETECT:
3275                 if (ap->ability_match != 0 &&
3276                     ap->rxconfig == 0) {
3277                         ap->state = ANEG_STATE_AN_ENABLE;
3278                         break;
3279                 }
3280                 delta = ap->cur_time - ap->link_time;
3281                 if (delta > ANEG_STATE_SETTLE_TIME) {
3282                         /* XXX another gem from the Broadcom driver :( */
3283                         ap->state = ANEG_STATE_LINK_OK;
3284                 }
3285                 break;
3286
3287         case ANEG_STATE_LINK_OK:
3288                 ap->flags |= (MR_AN_COMPLETE | MR_LINK_OK);
3289                 ret = ANEG_DONE;
3290                 break;
3291
3292         case ANEG_STATE_NEXT_PAGE_WAIT_INIT:
3293                 /* ??? unimplemented */
3294                 break;
3295
3296         case ANEG_STATE_NEXT_PAGE_WAIT:
3297                 /* ??? unimplemented */
3298                 break;
3299
3300         default:
3301                 ret = ANEG_FAILED;
3302                 break;
3303         }
3304
3305         return ret;
3306 }
3307
3308 static int fiber_autoneg(struct tg3 *tp, u32 *txflags, u32 *rxflags)
3309 {
3310         int res = 0;
3311         struct tg3_fiber_aneginfo aninfo;
3312         int status = ANEG_FAILED;
3313         unsigned int tick;
3314         u32 tmp;
3315
3316         tw32_f(MAC_TX_AUTO_NEG, 0);
3317
3318         tmp = tp->mac_mode & ~MAC_MODE_PORT_MODE_MASK;
3319         tw32_f(MAC_MODE, tmp | MAC_MODE_PORT_MODE_GMII);
3320         udelay(40);
3321
3322         tw32_f(MAC_MODE, tp->mac_mode | MAC_MODE_SEND_CONFIGS);
3323         udelay(40);
3324
3325         memset(&aninfo, 0, sizeof(aninfo));
3326         aninfo.flags |= MR_AN_ENABLE;
3327         aninfo.state = ANEG_STATE_UNKNOWN;
3328         aninfo.cur_time = 0;
3329         tick = 0;
3330         while (++tick < 195000) {
3331                 status = tg3_fiber_aneg_smachine(tp, &aninfo);
3332                 if (status == ANEG_DONE || status == ANEG_FAILED)
3333                         break;
3334
3335                 udelay(1);
3336         }
3337
3338         tp->mac_mode &= ~MAC_MODE_SEND_CONFIGS;
3339         tw32_f(MAC_MODE, tp->mac_mode);
3340         udelay(40);
3341
3342         *txflags = aninfo.txconfig;
3343         *rxflags = aninfo.flags;
3344
3345         if (status == ANEG_DONE &&
3346             (aninfo.flags & (MR_AN_COMPLETE | MR_LINK_OK |
3347                              MR_LP_ADV_FULL_DUPLEX)))
3348                 res = 1;
3349
3350         return res;
3351 }
3352
3353 static void tg3_init_bcm8002(struct tg3 *tp)
3354 {
3355         u32 mac_status = tr32(MAC_STATUS);
3356         int i;
3357
3358         /* Reset when initting first time or we have a link. */
3359         if ((tp->tg3_flags & TG3_FLAG_INIT_COMPLETE) &&
3360             !(mac_status & MAC_STATUS_PCS_SYNCED))
3361                 return;
3362
3363         /* Set PLL lock range. */
3364         tg3_writephy(tp, 0x16, 0x8007);
3365
3366         /* SW reset */
3367         tg3_writephy(tp, MII_BMCR, BMCR_RESET);
3368
3369         /* Wait for reset to complete. */
3370         /* XXX schedule_timeout() ... */
3371         for (i = 0; i < 500; i++)
3372                 udelay(10);
3373
3374         /* Config mode; select PMA/Ch 1 regs. */
3375         tg3_writephy(tp, 0x10, 0x8411);
3376
3377         /* Enable auto-lock and comdet, select txclk for tx. */
3378         tg3_writephy(tp, 0x11, 0x0a10);
3379
3380         tg3_writephy(tp, 0x18, 0x00a0);
3381         tg3_writephy(tp, 0x16, 0x41ff);
3382
3383         /* Assert and deassert POR. */
3384         tg3_writephy(tp, 0x13, 0x0400);
3385         udelay(40);
3386         tg3_writephy(tp, 0x13, 0x0000);
3387
3388         tg3_writephy(tp, 0x11, 0x0a50);
3389         udelay(40);
3390         tg3_writephy(tp, 0x11, 0x0a10);
3391
3392         /* Wait for signal to stabilize */
3393         /* XXX schedule_timeout() ... */
3394         for (i = 0; i < 15000; i++)
3395                 udelay(10);
3396
3397         /* Deselect the channel register so we can read the PHYID
3398          * later.
3399          */
3400         tg3_writephy(tp, 0x10, 0x8011);
3401 }
3402
3403 static int tg3_setup_fiber_hw_autoneg(struct tg3 *tp, u32 mac_status)
3404 {
3405         u16 flowctrl;
3406         u32 sg_dig_ctrl, sg_dig_status;
3407         u32 serdes_cfg, expected_sg_dig_ctrl;
3408         int workaround, port_a;
3409         int current_link_up;
3410
3411         serdes_cfg = 0;
3412         expected_sg_dig_ctrl = 0;
3413         workaround = 0;
3414         port_a = 1;
3415         current_link_up = 0;
3416
3417         if (tp->pci_chip_rev_id != CHIPREV_ID_5704_A0 &&
3418             tp->pci_chip_rev_id != CHIPREV_ID_5704_A1) {
3419                 workaround = 1;
3420                 if (tr32(TG3PCI_DUAL_MAC_CTRL) & DUAL_MAC_CTRL_ID)
3421                         port_a = 0;
3422
3423                 /* preserve bits 0-11,13,14 for signal pre-emphasis */
3424                 /* preserve bits 20-23 for voltage regulator */
3425                 serdes_cfg = tr32(MAC_SERDES_CFG) & 0x00f06fff;
3426         }
3427
3428         sg_dig_ctrl = tr32(SG_DIG_CTRL);
3429
3430         if (tp->link_config.autoneg != AUTONEG_ENABLE) {
3431                 if (sg_dig_ctrl & SG_DIG_USING_HW_AUTONEG) {
3432                         if (workaround) {
3433                                 u32 val = serdes_cfg;
3434
3435                                 if (port_a)
3436                                         val |= 0xc010000;
3437                                 else
3438                                         val |= 0x4010000;
3439                                 tw32_f(MAC_SERDES_CFG, val);
3440                         }
3441
3442                         tw32_f(SG_DIG_CTRL, SG_DIG_COMMON_SETUP);
3443                 }
3444                 if (mac_status & MAC_STATUS_PCS_SYNCED) {
3445                         tg3_setup_flow_control(tp, 0, 0);
3446                         current_link_up = 1;
3447                 }
3448                 goto out;
3449         }
3450
3451         /* Want auto-negotiation.  */
3452         expected_sg_dig_ctrl = SG_DIG_USING_HW_AUTONEG | SG_DIG_COMMON_SETUP;
3453
3454         flowctrl = tg3_advert_flowctrl_1000X(tp->link_config.flowctrl);
3455         if (flowctrl & ADVERTISE_1000XPAUSE)
3456                 expected_sg_dig_ctrl |= SG_DIG_PAUSE_CAP;
3457         if (flowctrl & ADVERTISE_1000XPSE_ASYM)
3458                 expected_sg_dig_ctrl |= SG_DIG_ASYM_PAUSE;
3459
3460         if (sg_dig_ctrl != expected_sg_dig_ctrl) {
3461                 if ((tp->tg3_flags2 & TG3_FLG2_PARALLEL_DETECT) &&
3462                     tp->serdes_counter &&
3463                     ((mac_status & (MAC_STATUS_PCS_SYNCED |
3464                                     MAC_STATUS_RCVD_CFG)) ==
3465                      MAC_STATUS_PCS_SYNCED)) {
3466                         tp->serdes_counter--;
3467                         current_link_up = 1;
3468                         goto out;
3469                 }
3470 restart_autoneg:
3471                 if (workaround)
3472                         tw32_f(MAC_SERDES_CFG, serdes_cfg | 0xc011000);
3473                 tw32_f(SG_DIG_CTRL, expected_sg_dig_ctrl | SG_DIG_SOFT_RESET);
3474                 udelay(5);
3475                 tw32_f(SG_DIG_CTRL, expected_sg_dig_ctrl);
3476
3477                 tp->serdes_counter = SERDES_AN_TIMEOUT_5704S;
3478                 tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
3479         } else if (mac_status & (MAC_STATUS_PCS_SYNCED |
3480                                  MAC_STATUS_SIGNAL_DET)) {
3481                 sg_dig_status = tr32(SG_DIG_STATUS);
3482                 mac_status = tr32(MAC_STATUS);
3483
3484                 if ((sg_dig_status & SG_DIG_AUTONEG_COMPLETE) &&
3485                     (mac_status & MAC_STATUS_PCS_SYNCED)) {
3486                         u32 local_adv = 0, remote_adv = 0;
3487
3488                         if (sg_dig_ctrl & SG_DIG_PAUSE_CAP)
3489                                 local_adv |= ADVERTISE_1000XPAUSE;
3490                         if (sg_dig_ctrl & SG_DIG_ASYM_PAUSE)
3491                                 local_adv |= ADVERTISE_1000XPSE_ASYM;
3492
3493                         if (sg_dig_status & SG_DIG_PARTNER_PAUSE_CAPABLE)
3494                                 remote_adv |= LPA_1000XPAUSE;
3495                         if (sg_dig_status & SG_DIG_PARTNER_ASYM_PAUSE)
3496                                 remote_adv |= LPA_1000XPAUSE_ASYM;
3497
3498                         tg3_setup_flow_control(tp, local_adv, remote_adv);
3499                         current_link_up = 1;
3500                         tp->serdes_counter = 0;
3501                         tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
3502                 } else if (!(sg_dig_status & SG_DIG_AUTONEG_COMPLETE)) {
3503                         if (tp->serdes_counter)
3504                                 tp->serdes_counter--;
3505                         else {
3506                                 if (workaround) {
3507                                         u32 val = serdes_cfg;
3508
3509                                         if (port_a)
3510                                                 val |= 0xc010000;
3511                                         else
3512                                                 val |= 0x4010000;
3513
3514                                         tw32_f(MAC_SERDES_CFG, val);
3515                                 }
3516
3517                                 tw32_f(SG_DIG_CTRL, SG_DIG_COMMON_SETUP);
3518                                 udelay(40);
3519
3520                                 /* Link parallel detection - link is up */
3521                                 /* only if we have PCS_SYNC and not */
3522                                 /* receiving config code words */
3523                                 mac_status = tr32(MAC_STATUS);
3524                                 if ((mac_status & MAC_STATUS_PCS_SYNCED) &&
3525                                     !(mac_status & MAC_STATUS_RCVD_CFG)) {
3526                                         tg3_setup_flow_control(tp, 0, 0);
3527                                         current_link_up = 1;
3528                                         tp->tg3_flags2 |=
3529                                                 TG3_FLG2_PARALLEL_DETECT;
3530                                         tp->serdes_counter =
3531                                                 SERDES_PARALLEL_DET_TIMEOUT;
3532                                 } else
3533                                         goto restart_autoneg;
3534                         }
3535                 }
3536         } else {
3537                 tp->serdes_counter = SERDES_AN_TIMEOUT_5704S;
3538                 tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
3539         }
3540
3541 out:
3542         return current_link_up;
3543 }
3544
3545 static int tg3_setup_fiber_by_hand(struct tg3 *tp, u32 mac_status)
3546 {
3547         int current_link_up = 0;
3548
3549         if (!(mac_status & MAC_STATUS_PCS_SYNCED))
3550                 goto out;
3551
3552         if (tp->link_config.autoneg == AUTONEG_ENABLE) {
3553                 u32 txflags, rxflags;
3554                 int i;
3555
3556                 if (fiber_autoneg(tp, &txflags, &rxflags)) {
3557                         u32 local_adv = 0, remote_adv = 0;
3558
3559                         if (txflags & ANEG_CFG_PS1)
3560                                 local_adv |= ADVERTISE_1000XPAUSE;
3561                         if (txflags & ANEG_CFG_PS2)
3562                                 local_adv |= ADVERTISE_1000XPSE_ASYM;
3563
3564                         if (rxflags & MR_LP_ADV_SYM_PAUSE)
3565                                 remote_adv |= LPA_1000XPAUSE;
3566                         if (rxflags & MR_LP_ADV_ASYM_PAUSE)
3567                                 remote_adv |= LPA_1000XPAUSE_ASYM;
3568
3569                         tg3_setup_flow_control(tp, local_adv, remote_adv);
3570
3571                         current_link_up = 1;
3572                 }
3573                 for (i = 0; i < 30; i++) {
3574                         udelay(20);
3575                         tw32_f(MAC_STATUS,
3576                                (MAC_STATUS_SYNC_CHANGED |
3577                                 MAC_STATUS_CFG_CHANGED));
3578                         udelay(40);
3579                         if ((tr32(MAC_STATUS) &
3580                              (MAC_STATUS_SYNC_CHANGED |
3581                               MAC_STATUS_CFG_CHANGED)) == 0)
3582                                 break;
3583                 }
3584
3585                 mac_status = tr32(MAC_STATUS);
3586                 if (current_link_up == 0 &&
3587                     (mac_status & MAC_STATUS_PCS_SYNCED) &&
3588                     !(mac_status & MAC_STATUS_RCVD_CFG))
3589                         current_link_up = 1;
3590         } else {
3591                 tg3_setup_flow_control(tp, 0, 0);
3592
3593                 /* Forcing 1000FD link up. */
3594                 current_link_up = 1;
3595
3596                 tw32_f(MAC_MODE, (tp->mac_mode | MAC_MODE_SEND_CONFIGS));
3597                 udelay(40);
3598
3599                 tw32_f(MAC_MODE, tp->mac_mode);
3600                 udelay(40);
3601         }
3602
3603 out:
3604         return current_link_up;
3605 }
3606
3607 static int tg3_setup_fiber_phy(struct tg3 *tp, int force_reset)
3608 {
3609         u32 orig_pause_cfg;
3610         u16 orig_active_speed;
3611         u8 orig_active_duplex;
3612         u32 mac_status;
3613         int current_link_up;
3614         int i;
3615
3616         orig_pause_cfg = tp->link_config.active_flowctrl;
3617         orig_active_speed = tp->link_config.active_speed;
3618         orig_active_duplex = tp->link_config.active_duplex;
3619
3620         if (!(tp->tg3_flags2 & TG3_FLG2_HW_AUTONEG) &&
3621             netif_carrier_ok(tp->dev) &&
3622             (tp->tg3_flags & TG3_FLAG_INIT_COMPLETE)) {
3623                 mac_status = tr32(MAC_STATUS);
3624                 mac_status &= (MAC_STATUS_PCS_SYNCED |
3625                                MAC_STATUS_SIGNAL_DET |
3626                                MAC_STATUS_CFG_CHANGED |
3627                                MAC_STATUS_RCVD_CFG);
3628                 if (mac_status == (MAC_STATUS_PCS_SYNCED |
3629                                    MAC_STATUS_SIGNAL_DET)) {
3630                         tw32_f(MAC_STATUS, (MAC_STATUS_SYNC_CHANGED |
3631                                             MAC_STATUS_CFG_CHANGED));
3632                         return 0;
3633                 }
3634         }
3635
3636         tw32_f(MAC_TX_AUTO_NEG, 0);
3637
3638         tp->mac_mode &= ~(MAC_MODE_PORT_MODE_MASK | MAC_MODE_HALF_DUPLEX);
3639         tp->mac_mode |= MAC_MODE_PORT_MODE_TBI;
3640         tw32_f(MAC_MODE, tp->mac_mode);
3641         udelay(40);
3642
3643         if (tp->phy_id == PHY_ID_BCM8002)
3644                 tg3_init_bcm8002(tp);
3645
3646         /* Enable link change event even when serdes polling.  */
3647         tw32_f(MAC_EVENT, MAC_EVENT_LNKSTATE_CHANGED);
3648         udelay(40);
3649
3650         current_link_up = 0;
3651         mac_status = tr32(MAC_STATUS);
3652
3653         if (tp->tg3_flags2 & TG3_FLG2_HW_AUTONEG)
3654                 current_link_up = tg3_setup_fiber_hw_autoneg(tp, mac_status);
3655         else
3656                 current_link_up = tg3_setup_fiber_by_hand(tp, mac_status);
3657
3658         tp->hw_status->status =
3659                 (SD_STATUS_UPDATED |
3660                  (tp->hw_status->status & ~SD_STATUS_LINK_CHG));
3661
3662         for (i = 0; i < 100; i++) {
3663                 tw32_f(MAC_STATUS, (MAC_STATUS_SYNC_CHANGED |
3664                                     MAC_STATUS_CFG_CHANGED));
3665                 udelay(5);
3666                 if ((tr32(MAC_STATUS) & (MAC_STATUS_SYNC_CHANGED |
3667                                          MAC_STATUS_CFG_CHANGED |
3668                                          MAC_STATUS_LNKSTATE_CHANGED)) == 0)
3669                         break;
3670         }
3671
3672         mac_status = tr32(MAC_STATUS);
3673         if ((mac_status & MAC_STATUS_PCS_SYNCED) == 0) {
3674                 current_link_up = 0;
3675                 if (tp->link_config.autoneg == AUTONEG_ENABLE &&
3676                     tp->serdes_counter == 0) {
3677                         tw32_f(MAC_MODE, (tp->mac_mode |
3678                                           MAC_MODE_SEND_CONFIGS));
3679                         udelay(1);
3680                         tw32_f(MAC_MODE, tp->mac_mode);
3681                 }
3682         }
3683
3684         if (current_link_up == 1) {
3685                 tp->link_config.active_speed = SPEED_1000;
3686                 tp->link_config.active_duplex = DUPLEX_FULL;
3687                 tw32(MAC_LED_CTRL, (tp->led_ctrl |
3688                                     LED_CTRL_LNKLED_OVERRIDE |
3689                                     LED_CTRL_1000MBPS_ON));
3690         } else {
3691                 tp->link_config.active_speed = SPEED_INVALID;
3692                 tp->link_config.active_duplex = DUPLEX_INVALID;
3693                 tw32(MAC_LED_CTRL, (tp->led_ctrl |
3694                                     LED_CTRL_LNKLED_OVERRIDE |
3695                                     LED_CTRL_TRAFFIC_OVERRIDE));
3696         }
3697
3698         if (current_link_up != netif_carrier_ok(tp->dev)) {
3699                 if (current_link_up)
3700                         netif_carrier_on(tp->dev);
3701                 else
3702                         netif_carrier_off(tp->dev);
3703                 tg3_link_report(tp);
3704         } else {
3705                 u32 now_pause_cfg = tp->link_config.active_flowctrl;
3706                 if (orig_pause_cfg != now_pause_cfg ||
3707                     orig_active_speed != tp->link_config.active_speed ||
3708                     orig_active_duplex != tp->link_config.active_duplex)
3709                         tg3_link_report(tp);
3710         }
3711
3712         return 0;
3713 }
3714
3715 static int tg3_setup_fiber_mii_phy(struct tg3 *tp, int force_reset)
3716 {
3717         int current_link_up, err = 0;
3718         u32 bmsr, bmcr;
3719         u16 current_speed;
3720         u8 current_duplex;
3721         u32 local_adv, remote_adv;
3722
3723         tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
3724         tw32_f(MAC_MODE, tp->mac_mode);
3725         udelay(40);
3726
3727         tw32(MAC_EVENT, 0);
3728
3729         tw32_f(MAC_STATUS,
3730              (MAC_STATUS_SYNC_CHANGED |
3731               MAC_STATUS_CFG_CHANGED |
3732               MAC_STATUS_MI_COMPLETION |
3733               MAC_STATUS_LNKSTATE_CHANGED));
3734         udelay(40);
3735
3736         if (force_reset)
3737                 tg3_phy_reset(tp);
3738
3739         current_link_up = 0;
3740         current_speed = SPEED_INVALID;
3741         current_duplex = DUPLEX_INVALID;
3742
3743         err |= tg3_readphy(tp, MII_BMSR, &bmsr);
3744         err |= tg3_readphy(tp, MII_BMSR, &bmsr);
3745         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714) {
3746                 if (tr32(MAC_TX_STATUS) & TX_STATUS_LINK_UP)
3747                         bmsr |= BMSR_LSTATUS;
3748                 else
3749                         bmsr &= ~BMSR_LSTATUS;
3750         }
3751
3752         err |= tg3_readphy(tp, MII_BMCR, &bmcr);
3753
3754         if ((tp->link_config.autoneg == AUTONEG_ENABLE) && !force_reset &&
3755             (tp->tg3_flags2 & TG3_FLG2_PARALLEL_DETECT)) {
3756                 /* do nothing, just check for link up at the end */
3757         } else if (tp->link_config.autoneg == AUTONEG_ENABLE) {
3758                 u32 adv, new_adv;
3759
3760                 err |= tg3_readphy(tp, MII_ADVERTISE, &adv);
3761                 new_adv = adv & ~(ADVERTISE_1000XFULL | ADVERTISE_1000XHALF |
3762                                   ADVERTISE_1000XPAUSE |
3763                                   ADVERTISE_1000XPSE_ASYM |
3764                                   ADVERTISE_SLCT);
3765
3766                 new_adv |= tg3_advert_flowctrl_1000X(tp->link_config.flowctrl);
3767
3768                 if (tp->link_config.advertising & ADVERTISED_1000baseT_Half)
3769                         new_adv |= ADVERTISE_1000XHALF;
3770                 if (tp->link_config.advertising & ADVERTISED_1000baseT_Full)
3771                         new_adv |= ADVERTISE_1000XFULL;
3772
3773                 if ((new_adv != adv) || !(bmcr & BMCR_ANENABLE)) {
3774                         tg3_writephy(tp, MII_ADVERTISE, new_adv);
3775                         bmcr |= BMCR_ANENABLE | BMCR_ANRESTART;
3776                         tg3_writephy(tp, MII_BMCR, bmcr);
3777
3778                         tw32_f(MAC_EVENT, MAC_EVENT_LNKSTATE_CHANGED);
3779                         tp->serdes_counter = SERDES_AN_TIMEOUT_5714S;
3780                         tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
3781
3782                         return err;
3783                 }
3784         } else {
3785                 u32 new_bmcr;
3786
3787                 bmcr &= ~BMCR_SPEED1000;
3788                 new_bmcr = bmcr & ~(BMCR_ANENABLE | BMCR_FULLDPLX);
3789
3790                 if (tp->link_config.duplex == DUPLEX_FULL)
3791                         new_bmcr |= BMCR_FULLDPLX;
3792
3793                 if (new_bmcr != bmcr) {
3794                         /* BMCR_SPEED1000 is a reserved bit that needs
3795                          * to be set on write.
3796                          */
3797                         new_bmcr |= BMCR_SPEED1000;
3798
3799                         /* Force a linkdown */
3800                         if (netif_carrier_ok(tp->dev)) {
3801                                 u32 adv;
3802
3803                                 err |= tg3_readphy(tp, MII_ADVERTISE, &adv);
3804                                 adv &= ~(ADVERTISE_1000XFULL |
3805                                          ADVERTISE_1000XHALF |
3806                                          ADVERTISE_SLCT);
3807                                 tg3_writephy(tp, MII_ADVERTISE, adv);
3808                                 tg3_writephy(tp, MII_BMCR, bmcr |
3809                                                            BMCR_ANRESTART |
3810                                                            BMCR_ANENABLE);
3811                                 udelay(10);
3812                                 netif_carrier_off(tp->dev);
3813                         }
3814                         tg3_writephy(tp, MII_BMCR, new_bmcr);
3815                         bmcr = new_bmcr;
3816                         err |= tg3_readphy(tp, MII_BMSR, &bmsr);
3817                         err |= tg3_readphy(tp, MII_BMSR, &bmsr);
3818                         if (GET_ASIC_REV(tp->pci_chip_rev_id) ==
3819                             ASIC_REV_5714) {
3820                                 if (tr32(MAC_TX_STATUS) & TX_STATUS_LINK_UP)
3821                                         bmsr |= BMSR_LSTATUS;
3822                                 else
3823                                         bmsr &= ~BMSR_LSTATUS;
3824                         }
3825                         tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
3826                 }
3827         }
3828
3829         if (bmsr & BMSR_LSTATUS) {
3830                 current_speed = SPEED_1000;
3831                 current_link_up = 1;
3832                 if (bmcr & BMCR_FULLDPLX)
3833                         current_duplex = DUPLEX_FULL;
3834                 else
3835                         current_duplex = DUPLEX_HALF;
3836
3837                 local_adv = 0;
3838                 remote_adv = 0;
3839
3840                 if (bmcr & BMCR_ANENABLE) {
3841                         u32 common;
3842
3843                         err |= tg3_readphy(tp, MII_ADVERTISE, &local_adv);
3844                         err |= tg3_readphy(tp, MII_LPA, &remote_adv);
3845                         common = local_adv & remote_adv;
3846                         if (common & (ADVERTISE_1000XHALF |
3847                                       ADVERTISE_1000XFULL)) {
3848                                 if (common & ADVERTISE_1000XFULL)
3849                                         current_duplex = DUPLEX_FULL;
3850                                 else
3851                                         current_duplex = DUPLEX_HALF;
3852                         }
3853                         else
3854                                 current_link_up = 0;
3855                 }
3856         }
3857
3858         if (current_link_up == 1 && current_duplex == DUPLEX_FULL)
3859                 tg3_setup_flow_control(tp, local_adv, remote_adv);
3860
3861         tp->mac_mode &= ~MAC_MODE_HALF_DUPLEX;
3862         if (tp->link_config.active_duplex == DUPLEX_HALF)
3863                 tp->mac_mode |= MAC_MODE_HALF_DUPLEX;
3864
3865         tw32_f(MAC_MODE, tp->mac_mode);
3866         udelay(40);
3867
3868         tw32_f(MAC_EVENT, MAC_EVENT_LNKSTATE_CHANGED);
3869
3870         tp->link_config.active_speed = current_speed;
3871         tp->link_config.active_duplex = current_duplex;
3872
3873         if (current_link_up != netif_carrier_ok(tp->dev)) {
3874                 if (current_link_up)
3875                         netif_carrier_on(tp->dev);
3876                 else {
3877                         netif_carrier_off(tp->dev);
3878                         tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
3879                 }
3880                 tg3_link_report(tp);
3881         }
3882         return err;
3883 }
3884
3885 static void tg3_serdes_parallel_detect(struct tg3 *tp)
3886 {
3887         if (tp->serdes_counter) {
3888                 /* Give autoneg time to complete. */
3889                 tp->serdes_counter--;
3890                 return;
3891         }
3892         if (!netif_carrier_ok(tp->dev) &&
3893             (tp->link_config.autoneg == AUTONEG_ENABLE)) {
3894                 u32 bmcr;
3895
3896                 tg3_readphy(tp, MII_BMCR, &bmcr);
3897                 if (bmcr & BMCR_ANENABLE) {
3898                         u32 phy1, phy2;
3899
3900                         /* Select shadow register 0x1f */
3901                         tg3_writephy(tp, 0x1c, 0x7c00);
3902                         tg3_readphy(tp, 0x1c, &phy1);
3903
3904                         /* Select expansion interrupt status register */
3905                         tg3_writephy(tp, 0x17, 0x0f01);
3906                         tg3_readphy(tp, 0x15, &phy2);
3907                         tg3_readphy(tp, 0x15, &phy2);
3908
3909                         if ((phy1 & 0x10) && !(phy2 & 0x20)) {
3910                                 /* We have signal detect and not receiving
3911                                  * config code words, link is up by parallel
3912                                  * detection.
3913                                  */
3914
3915                                 bmcr &= ~BMCR_ANENABLE;
3916                                 bmcr |= BMCR_SPEED1000 | BMCR_FULLDPLX;
3917                                 tg3_writephy(tp, MII_BMCR, bmcr);
3918                                 tp->tg3_flags2 |= TG3_FLG2_PARALLEL_DETECT;
3919                         }
3920                 }
3921         }
3922         else if (netif_carrier_ok(tp->dev) &&
3923                  (tp->link_config.autoneg == AUTONEG_ENABLE) &&
3924                  (tp->tg3_flags2 & TG3_FLG2_PARALLEL_DETECT)) {
3925                 u32 phy2;
3926
3927                 /* Select expansion interrupt status register */
3928                 tg3_writephy(tp, 0x17, 0x0f01);
3929                 tg3_readphy(tp, 0x15, &phy2);
3930                 if (phy2 & 0x20) {
3931                         u32 bmcr;
3932
3933                         /* Config code words received, turn on autoneg. */
3934                         tg3_readphy(tp, MII_BMCR, &bmcr);
3935                         tg3_writephy(tp, MII_BMCR, bmcr | BMCR_ANENABLE);
3936
3937                         tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
3938
3939                 }
3940         }
3941 }
3942
3943 static int tg3_setup_phy(struct tg3 *tp, int force_reset)
3944 {
3945         int err;
3946
3947         if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) {
3948                 err = tg3_setup_fiber_phy(tp, force_reset);
3949         } else if (tp->tg3_flags2 & TG3_FLG2_MII_SERDES) {
3950                 err = tg3_setup_fiber_mii_phy(tp, force_reset);
3951         } else {
3952                 err = tg3_setup_copper_phy(tp, force_reset);
3953         }
3954
3955         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX) {
3956                 u32 val, scale;
3957
3958                 val = tr32(TG3_CPMU_CLCK_STAT) & CPMU_CLCK_STAT_MAC_CLCK_MASK;
3959                 if (val == CPMU_CLCK_STAT_MAC_CLCK_62_5)
3960                         scale = 65;
3961                 else if (val == CPMU_CLCK_STAT_MAC_CLCK_6_25)
3962                         scale = 6;
3963                 else
3964                         scale = 12;
3965
3966                 val = tr32(GRC_MISC_CFG) & ~GRC_MISC_CFG_PRESCALAR_MASK;
3967                 val |= (scale << GRC_MISC_CFG_PRESCALAR_SHIFT);
3968                 tw32(GRC_MISC_CFG, val);
3969         }
3970
3971         if (tp->link_config.active_speed == SPEED_1000 &&
3972             tp->link_config.active_duplex == DUPLEX_HALF)
3973                 tw32(MAC_TX_LENGTHS,
3974                      ((2 << TX_LENGTHS_IPG_CRS_SHIFT) |
3975                       (6 << TX_LENGTHS_IPG_SHIFT) |
3976                       (0xff << TX_LENGTHS_SLOT_TIME_SHIFT)));
3977         else
3978                 tw32(MAC_TX_LENGTHS,
3979                      ((2 << TX_LENGTHS_IPG_CRS_SHIFT) |
3980                       (6 << TX_LENGTHS_IPG_SHIFT) |
3981                       (32 << TX_LENGTHS_SLOT_TIME_SHIFT)));
3982
3983         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
3984                 if (netif_carrier_ok(tp->dev)) {
3985                         tw32(HOSTCC_STAT_COAL_TICKS,
3986                              tp->coal.stats_block_coalesce_usecs);
3987                 } else {
3988                         tw32(HOSTCC_STAT_COAL_TICKS, 0);
3989                 }
3990         }
3991
3992         if (tp->tg3_flags & TG3_FLAG_ASPM_WORKAROUND) {
3993                 u32 val = tr32(PCIE_PWR_MGMT_THRESH);
3994                 if (!netif_carrier_ok(tp->dev))
3995                         val = (val & ~PCIE_PWR_MGMT_L1_THRESH_MSK) |
3996                               tp->pwrmgmt_thresh;
3997                 else
3998                         val |= PCIE_PWR_MGMT_L1_THRESH_MSK;
3999                 tw32(PCIE_PWR_MGMT_THRESH, val);
4000         }
4001
4002         return err;
4003 }
4004
4005 /* This is called whenever we suspect that the system chipset is re-
4006  * ordering the sequence of MMIO to the tx send mailbox. The symptom
4007  * is bogus tx completions. We try to recover by setting the
4008  * TG3_FLAG_MBOX_WRITE_REORDER flag and resetting the chip later
4009  * in the workqueue.
4010  */
4011 static void tg3_tx_recover(struct tg3 *tp)
4012 {
4013         BUG_ON((tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER) ||
4014                tp->write32_tx_mbox == tg3_write_indirect_mbox);
4015
4016         printk(KERN_WARNING PFX "%s: The system may be re-ordering memory-"
4017                "mapped I/O cycles to the network device, attempting to "
4018                "recover. Please report the problem to the driver maintainer "
4019                "and include system chipset information.\n", tp->dev->name);
4020
4021         spin_lock(&tp->lock);
4022         tp->tg3_flags |= TG3_FLAG_TX_RECOVERY_PENDING;
4023         spin_unlock(&tp->lock);
4024 }
4025
4026 static inline u32 tg3_tx_avail(struct tg3 *tp)
4027 {
4028         smp_mb();
4029         return (tp->tx_pending -
4030                 ((tp->tx_prod - tp->tx_cons) & (TG3_TX_RING_SIZE - 1)));
4031 }
4032
4033 /* Tigon3 never reports partial packet sends.  So we do not
4034  * need special logic to handle SKBs that have not had all
4035  * of their frags sent yet, like SunGEM does.
4036  */
4037 static void tg3_tx(struct tg3 *tp)
4038 {
4039         u32 hw_idx = tp->hw_status->idx[0].tx_consumer;
4040         u32 sw_idx = tp->tx_cons;
4041
4042         while (sw_idx != hw_idx) {
4043                 struct tx_ring_info *ri = &tp->tx_buffers[sw_idx];
4044                 struct sk_buff *skb = ri->skb;
4045                 int i, tx_bug = 0;
4046
4047                 if (unlikely(skb == NULL)) {
4048                         tg3_tx_recover(tp);
4049                         return;
4050                 }
4051
4052                 skb_dma_unmap(&tp->pdev->dev, skb, DMA_TO_DEVICE);
4053
4054                 ri->skb = NULL;
4055
4056                 sw_idx = NEXT_TX(sw_idx);
4057
4058                 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
4059                         ri = &tp->tx_buffers[sw_idx];
4060                         if (unlikely(ri->skb != NULL || sw_idx == hw_idx))
4061                                 tx_bug = 1;
4062                         sw_idx = NEXT_TX(sw_idx);
4063                 }
4064
4065                 dev_kfree_skb(skb);
4066
4067                 if (unlikely(tx_bug)) {
4068                         tg3_tx_recover(tp);
4069                         return;
4070                 }
4071         }
4072
4073         tp->tx_cons = sw_idx;
4074
4075         /* Need to make the tx_cons update visible to tg3_start_xmit()
4076          * before checking for netif_queue_stopped().  Without the
4077          * memory barrier, there is a small possibility that tg3_start_xmit()
4078          * will miss it and cause the queue to be stopped forever.
4079          */
4080         smp_mb();
4081
4082         if (unlikely(netif_queue_stopped(tp->dev) &&
4083                      (tg3_tx_avail(tp) > TG3_TX_WAKEUP_THRESH(tp)))) {
4084                 netif_tx_lock(tp->dev);
4085                 if (netif_queue_stopped(tp->dev) &&
4086                     (tg3_tx_avail(tp) > TG3_TX_WAKEUP_THRESH(tp)))
4087                         netif_wake_queue(tp->dev);
4088                 netif_tx_unlock(tp->dev);
4089         }
4090 }
4091
4092 /* Returns size of skb allocated or < 0 on error.
4093  *
4094  * We only need to fill in the address because the other members
4095  * of the RX descriptor are invariant, see tg3_init_rings.
4096  *
4097  * Note the purposeful assymetry of cpu vs. chip accesses.  For
4098  * posting buffers we only dirty the first cache line of the RX
4099  * descriptor (containing the address).  Whereas for the RX status
4100  * buffers the cpu only reads the last cacheline of the RX descriptor
4101  * (to fetch the error flags, vlan tag, checksum, and opaque cookie).
4102  */
4103 static int tg3_alloc_rx_skb(struct tg3 *tp, u32 opaque_key,
4104                             int src_idx, u32 dest_idx_unmasked)
4105 {
4106         struct tg3_rx_buffer_desc *desc;
4107         struct ring_info *map, *src_map;
4108         struct sk_buff *skb;
4109         dma_addr_t mapping;
4110         int skb_size, dest_idx;
4111
4112         src_map = NULL;
4113         switch (opaque_key) {
4114         case RXD_OPAQUE_RING_STD:
4115                 dest_idx = dest_idx_unmasked % TG3_RX_RING_SIZE;
4116                 desc = &tp->rx_std[dest_idx];
4117                 map = &tp->rx_std_buffers[dest_idx];
4118                 if (src_idx >= 0)
4119                         src_map = &tp->rx_std_buffers[src_idx];
4120                 skb_size = tp->rx_pkt_buf_sz;
4121                 break;
4122
4123         case RXD_OPAQUE_RING_JUMBO:
4124                 dest_idx = dest_idx_unmasked % TG3_RX_JUMBO_RING_SIZE;
4125                 desc = &tp->rx_jumbo[dest_idx];
4126                 map = &tp->rx_jumbo_buffers[dest_idx];
4127                 if (src_idx >= 0)
4128                         src_map = &tp->rx_jumbo_buffers[src_idx];
4129                 skb_size = RX_JUMBO_PKT_BUF_SZ;
4130                 break;
4131
4132         default:
4133                 return -EINVAL;
4134         }
4135
4136         /* Do not overwrite any of the map or rp information
4137          * until we are sure we can commit to a new buffer.
4138          *
4139          * Callers depend upon this behavior and assume that
4140          * we leave everything unchanged if we fail.
4141          */
4142         skb = netdev_alloc_skb(tp->dev, skb_size);
4143         if (skb == NULL)
4144                 return -ENOMEM;
4145
4146         skb_reserve(skb, tp->rx_offset);
4147
4148         mapping = pci_map_single(tp->pdev, skb->data,
4149                                  skb_size - tp->rx_offset,
4150                                  PCI_DMA_FROMDEVICE);
4151
4152         map->skb = skb;
4153         pci_unmap_addr_set(map, mapping, mapping);
4154
4155         if (src_map != NULL)
4156                 src_map->skb = NULL;
4157
4158         desc->addr_hi = ((u64)mapping >> 32);
4159         desc->addr_lo = ((u64)mapping & 0xffffffff);
4160
4161         return skb_size;
4162 }
4163
4164 /* We only need to move over in the address because the other
4165  * members of the RX descriptor are invariant.  See notes above
4166  * tg3_alloc_rx_skb for full details.
4167  */
4168 static void tg3_recycle_rx(struct tg3 *tp, u32 opaque_key,
4169                            int src_idx, u32 dest_idx_unmasked)
4170 {
4171         struct tg3_rx_buffer_desc *src_desc, *dest_desc;
4172         struct ring_info *src_map, *dest_map;
4173         int dest_idx;
4174
4175         switch (opaque_key) {
4176         case RXD_OPAQUE_RING_STD:
4177                 dest_idx = dest_idx_unmasked % TG3_RX_RING_SIZE;
4178                 dest_desc = &tp->rx_std[dest_idx];
4179                 dest_map = &tp->rx_std_buffers[dest_idx];
4180                 src_desc = &tp->rx_std[src_idx];
4181                 src_map = &tp->rx_std_buffers[src_idx];
4182                 break;
4183
4184         case RXD_OPAQUE_RING_JUMBO:
4185                 dest_idx = dest_idx_unmasked % TG3_RX_JUMBO_RING_SIZE;
4186                 dest_desc = &tp->rx_jumbo[dest_idx];
4187                 dest_map = &tp->rx_jumbo_buffers[dest_idx];
4188                 src_desc = &tp->rx_jumbo[src_idx];
4189                 src_map = &tp->rx_jumbo_buffers[src_idx];
4190                 break;
4191
4192         default:
4193                 return;
4194         }
4195
4196         dest_map->skb = src_map->skb;
4197         pci_unmap_addr_set(dest_map, mapping,
4198                            pci_unmap_addr(src_map, mapping));
4199         dest_desc->addr_hi = src_desc->addr_hi;
4200         dest_desc->addr_lo = src_desc->addr_lo;
4201
4202         src_map->skb = NULL;
4203 }
4204
4205 #if TG3_VLAN_TAG_USED
4206 static int tg3_vlan_rx(struct tg3 *tp, struct sk_buff *skb, u16 vlan_tag)
4207 {
4208         return vlan_hwaccel_receive_skb(skb, tp->vlgrp, vlan_tag);
4209 }
4210 #endif
4211
4212 /* The RX ring scheme is composed of multiple rings which post fresh
4213  * buffers to the chip, and one special ring the chip uses to report
4214  * status back to the host.
4215  *
4216  * The special ring reports the status of received packets to the
4217  * host.  The chip does not write into the original descriptor the
4218  * RX buffer was obtained from.  The chip simply takes the original
4219  * descriptor as provided by the host, updates the status and length
4220  * field, then writes this into the next status ring entry.
4221  *
4222  * Each ring the host uses to post buffers to the chip is described
4223  * by a TG3_BDINFO entry in the chips SRAM area.  When a packet arrives,
4224  * it is first placed into the on-chip ram.  When the packet's length
4225  * is known, it walks down the TG3_BDINFO entries to select the ring.
4226  * Each TG3_BDINFO specifies a MAXLEN field and the first TG3_BDINFO
4227  * which is within the range of the new packet's length is chosen.
4228  *
4229  * The "separate ring for rx status" scheme may sound queer, but it makes
4230  * sense from a cache coherency perspective.  If only the host writes
4231  * to the buffer post rings, and only the chip writes to the rx status
4232  * rings, then cache lines never move beyond shared-modified state.
4233  * If both the host and chip were to write into the same ring, cache line
4234  * eviction could occur since both entities want it in an exclusive state.
4235  */
4236 static int tg3_rx(struct tg3 *tp, int budget)
4237 {
4238         u32 work_mask, rx_std_posted = 0;
4239         u32 sw_idx = tp->rx_rcb_ptr;
4240         u16 hw_idx;
4241         int received;
4242
4243         hw_idx = tp->hw_status->idx[0].rx_producer;
4244         /*
4245          * We need to order the read of hw_idx and the read of
4246          * the opaque cookie.
4247          */
4248         rmb();
4249         work_mask = 0;
4250         received = 0;
4251         while (sw_idx != hw_idx && budget > 0) {
4252                 struct tg3_rx_buffer_desc *desc = &tp->rx_rcb[sw_idx];
4253                 unsigned int len;
4254                 struct sk_buff *skb;
4255                 dma_addr_t dma_addr;
4256                 u32 opaque_key, desc_idx, *post_ptr;
4257
4258                 desc_idx = desc->opaque & RXD_OPAQUE_INDEX_MASK;
4259                 opaque_key = desc->opaque & RXD_OPAQUE_RING_MASK;
4260                 if (opaque_key == RXD_OPAQUE_RING_STD) {
4261                         dma_addr = pci_unmap_addr(&tp->rx_std_buffers[desc_idx],
4262                                                   mapping);
4263                         skb = tp->rx_std_buffers[desc_idx].skb;
4264                         post_ptr = &tp->rx_std_ptr;
4265                         rx_std_posted++;
4266                 } else if (opaque_key == RXD_OPAQUE_RING_JUMBO) {
4267                         dma_addr = pci_unmap_addr(&tp->rx_jumbo_buffers[desc_idx],
4268                                                   mapping);
4269                         skb = tp->rx_jumbo_buffers[desc_idx].skb;
4270                         post_ptr = &tp->rx_jumbo_ptr;
4271                 }
4272                 else {
4273                         goto next_pkt_nopost;
4274                 }
4275
4276                 work_mask |= opaque_key;
4277
4278                 if ((desc->err_vlan & RXD_ERR_MASK) != 0 &&
4279                     (desc->err_vlan != RXD_ERR_ODD_NIBBLE_RCVD_MII)) {
4280                 drop_it:
4281                         tg3_recycle_rx(tp, opaque_key,
4282                                        desc_idx, *post_ptr);
4283                 drop_it_no_recycle:
4284                         /* Other statistics kept track of by card. */
4285                         tp->net_stats.rx_dropped++;
4286                         goto next_pkt;
4287                 }
4288
4289                 len = ((desc->idx_len & RXD_LEN_MASK) >> RXD_LEN_SHIFT) -
4290                       ETH_FCS_LEN;
4291
4292                 if (len > RX_COPY_THRESHOLD
4293                         && tp->rx_offset == NET_IP_ALIGN
4294                         /* rx_offset will likely not equal NET_IP_ALIGN
4295                          * if this is a 5701 card running in PCI-X mode
4296                          * [see tg3_get_invariants()]
4297                          */
4298                 ) {
4299                         int skb_size;
4300
4301                         skb_size = tg3_alloc_rx_skb(tp, opaque_key,
4302                                                     desc_idx, *post_ptr);
4303                         if (skb_size < 0)
4304                                 goto drop_it;
4305
4306                         pci_unmap_single(tp->pdev, dma_addr,
4307                                          skb_size - tp->rx_offset,
4308                                          PCI_DMA_FROMDEVICE);
4309
4310                         skb_put(skb, len);
4311                 } else {
4312                         struct sk_buff *copy_skb;
4313
4314                         tg3_recycle_rx(tp, opaque_key,
4315                                        desc_idx, *post_ptr);
4316
4317                         copy_skb = netdev_alloc_skb(tp->dev,
4318                                                     len + TG3_RAW_IP_ALIGN);
4319                         if (copy_skb == NULL)
4320                                 goto drop_it_no_recycle;
4321
4322                         skb_reserve(copy_skb, TG3_RAW_IP_ALIGN);
4323                         skb_put(copy_skb, len);
4324                         pci_dma_sync_single_for_cpu(tp->pdev, dma_addr, len, PCI_DMA_FROMDEVICE);
4325                         skb_copy_from_linear_data(skb, copy_skb->data, len);
4326                         pci_dma_sync_single_for_device(tp->pdev, dma_addr, len, PCI_DMA_FROMDEVICE);
4327
4328                         /* We'll reuse the original ring buffer. */
4329                         skb = copy_skb;
4330                 }
4331
4332                 if ((tp->tg3_flags & TG3_FLAG_RX_CHECKSUMS) &&
4333                     (desc->type_flags & RXD_FLAG_TCPUDP_CSUM) &&
4334                     (((desc->ip_tcp_csum & RXD_TCPCSUM_MASK)
4335                       >> RXD_TCPCSUM_SHIFT) == 0xffff))
4336                         skb->ip_summed = CHECKSUM_UNNECESSARY;
4337                 else
4338                         skb->ip_summed = CHECKSUM_NONE;
4339
4340                 skb->protocol = eth_type_trans(skb, tp->dev);
4341 #if TG3_VLAN_TAG_USED
4342                 if (tp->vlgrp != NULL &&
4343                     desc->type_flags & RXD_FLAG_VLAN) {
4344                         tg3_vlan_rx(tp, skb,
4345                                     desc->err_vlan & RXD_VLAN_MASK);
4346                 } else
4347 #endif
4348                         netif_receive_skb(skb);
4349
4350                 received++;
4351                 budget--;
4352
4353 next_pkt:
4354                 (*post_ptr)++;
4355
4356                 if (unlikely(rx_std_posted >= tp->rx_std_max_post)) {
4357                         u32 idx = *post_ptr % TG3_RX_RING_SIZE;
4358
4359                         tw32_rx_mbox(MAILBOX_RCV_STD_PROD_IDX +
4360                                      TG3_64BIT_REG_LOW, idx);
4361                         work_mask &= ~RXD_OPAQUE_RING_STD;
4362                         rx_std_posted = 0;
4363                 }
4364 next_pkt_nopost:
4365                 sw_idx++;
4366                 sw_idx &= (TG3_RX_RCB_RING_SIZE(tp) - 1);
4367
4368                 /* Refresh hw_idx to see if there is new work */
4369                 if (sw_idx == hw_idx) {
4370                         hw_idx = tp->hw_status->idx[0].rx_producer;
4371                         rmb();
4372                 }
4373         }
4374
4375         /* ACK the status ring. */
4376         tp->rx_rcb_ptr = sw_idx;
4377         tw32_rx_mbox(MAILBOX_RCVRET_CON_IDX_0 + TG3_64BIT_REG_LOW, sw_idx);
4378
4379         /* Refill RX ring(s). */
4380         if (work_mask & RXD_OPAQUE_RING_STD) {
4381                 sw_idx = tp->rx_std_ptr % TG3_RX_RING_SIZE;
4382                 tw32_rx_mbox(MAILBOX_RCV_STD_PROD_IDX + TG3_64BIT_REG_LOW,
4383                              sw_idx);
4384         }
4385         if (work_mask & RXD_OPAQUE_RING_JUMBO) {
4386                 sw_idx = tp->rx_jumbo_ptr % TG3_RX_JUMBO_RING_SIZE;
4387                 tw32_rx_mbox(MAILBOX_RCV_JUMBO_PROD_IDX + TG3_64BIT_REG_LOW,
4388                              sw_idx);
4389         }
4390         mmiowb();
4391
4392         return received;
4393 }
4394
4395 static int tg3_poll_work(struct tg3 *tp, int work_done, int budget)
4396 {
4397         struct tg3_hw_status *sblk = tp->hw_status;
4398
4399         /* handle link change and other phy events */
4400         if (!(tp->tg3_flags &
4401               (TG3_FLAG_USE_LINKCHG_REG |
4402                TG3_FLAG_POLL_SERDES))) {
4403                 if (sblk->status & SD_STATUS_LINK_CHG) {
4404                         sblk->status = SD_STATUS_UPDATED |
4405                                 (sblk->status & ~SD_STATUS_LINK_CHG);
4406                         spin_lock(&tp->lock);
4407                         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
4408                                 tw32_f(MAC_STATUS,
4409                                      (MAC_STATUS_SYNC_CHANGED |
4410                                       MAC_STATUS_CFG_CHANGED |
4411                                       MAC_STATUS_MI_COMPLETION |
4412                                       MAC_STATUS_LNKSTATE_CHANGED));
4413                                 udelay(40);
4414                         } else
4415                                 tg3_setup_phy(tp, 0);
4416                         spin_unlock(&tp->lock);
4417                 }
4418         }
4419
4420         /* run TX completion thread */
4421         if (sblk->idx[0].tx_consumer != tp->tx_cons) {
4422                 tg3_tx(tp);
4423                 if (unlikely(tp->tg3_flags & TG3_FLAG_TX_RECOVERY_PENDING))
4424                         return work_done;
4425         }
4426
4427         /* run RX thread, within the bounds set by NAPI.
4428          * All RX "locking" is done by ensuring outside
4429          * code synchronizes with tg3->napi.poll()
4430          */
4431         if (sblk->idx[0].rx_producer != tp->rx_rcb_ptr)
4432                 work_done += tg3_rx(tp, budget - work_done);
4433
4434         return work_done;
4435 }
4436
4437 static int tg3_poll(struct napi_struct *napi, int budget)
4438 {
4439         struct tg3 *tp = container_of(napi, struct tg3, napi);
4440         int work_done = 0;
4441         struct tg3_hw_status *sblk = tp->hw_status;
4442
4443         while (1) {
4444                 work_done = tg3_poll_work(tp, work_done, budget);
4445
4446                 if (unlikely(tp->tg3_flags & TG3_FLAG_TX_RECOVERY_PENDING))
4447                         goto tx_recovery;
4448
4449                 if (unlikely(work_done >= budget))
4450                         break;
4451
4452                 if (tp->tg3_flags & TG3_FLAG_TAGGED_STATUS) {
4453                         /* tp->last_tag is used in tg3_restart_ints() below
4454                          * to tell the hw how much work has been processed,
4455                          * so we must read it before checking for more work.
4456                          */
4457                         tp->last_tag = sblk->status_tag;
4458                         rmb();
4459                 } else
4460                         sblk->status &= ~SD_STATUS_UPDATED;
4461
4462                 if (likely(!tg3_has_work(tp))) {
4463                         netif_rx_complete(napi);
4464                         tg3_restart_ints(tp);
4465                         break;
4466                 }
4467         }
4468
4469         return work_done;
4470
4471 tx_recovery:
4472         /* work_done is guaranteed to be less than budget. */
4473         netif_rx_complete(napi);
4474         schedule_work(&tp->reset_task);
4475         return work_done;
4476 }
4477
4478 static void tg3_irq_quiesce(struct tg3 *tp)
4479 {
4480         BUG_ON(tp->irq_sync);
4481
4482         tp->irq_sync = 1;
4483         smp_mb();
4484
4485         synchronize_irq(tp->pdev->irq);
4486 }
4487
4488 static inline int tg3_irq_sync(struct tg3 *tp)
4489 {
4490         return tp->irq_sync;
4491 }
4492
4493 /* Fully shutdown all tg3 driver activity elsewhere in the system.
4494  * If irq_sync is non-zero, then the IRQ handler must be synchronized
4495  * with as well.  Most of the time, this is not necessary except when
4496  * shutting down the device.
4497  */
4498 static inline void tg3_full_lock(struct tg3 *tp, int irq_sync)
4499 {
4500         spin_lock_bh(&tp->lock);
4501         if (irq_sync)
4502                 tg3_irq_quiesce(tp);
4503 }
4504
4505 static inline void tg3_full_unlock(struct tg3 *tp)
4506 {
4507         spin_unlock_bh(&tp->lock);
4508 }
4509
4510 /* One-shot MSI handler - Chip automatically disables interrupt
4511  * after sending MSI so driver doesn't have to do it.
4512  */
4513 static irqreturn_t tg3_msi_1shot(int irq, void *dev_id)
4514 {
4515         struct net_device *dev = dev_id;
4516         struct tg3 *tp = netdev_priv(dev);
4517
4518         prefetch(tp->hw_status);
4519         prefetch(&tp->rx_rcb[tp->rx_rcb_ptr]);
4520
4521         if (likely(!tg3_irq_sync(tp)))
4522                 netif_rx_schedule(&tp->napi);
4523
4524         return IRQ_HANDLED;
4525 }
4526
4527 /* MSI ISR - No need to check for interrupt sharing and no need to
4528  * flush status block and interrupt mailbox. PCI ordering rules
4529  * guarantee that MSI will arrive after the status block.
4530  */
4531 static irqreturn_t tg3_msi(int irq, void *dev_id)
4532 {
4533         struct net_device *dev = dev_id;
4534         struct tg3 *tp = netdev_priv(dev);
4535
4536         prefetch(tp->hw_status);
4537         prefetch(&tp->rx_rcb[tp->rx_rcb_ptr]);
4538         /*
4539          * Writing any value to intr-mbox-0 clears PCI INTA# and
4540          * chip-internal interrupt pending events.
4541          * Writing non-zero to intr-mbox-0 additional tells the
4542          * NIC to stop sending us irqs, engaging "in-intr-handler"
4543          * event coalescing.
4544          */
4545         tw32_mailbox(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0x00000001);
4546         if (likely(!tg3_irq_sync(tp)))
4547                 netif_rx_schedule(&tp->napi);
4548
4549         return IRQ_RETVAL(1);
4550 }
4551
4552 static irqreturn_t tg3_interrupt(int irq, void *dev_id)
4553 {
4554         struct net_device *dev = dev_id;
4555         struct tg3 *tp = netdev_priv(dev);
4556         struct tg3_hw_status *sblk = tp->hw_status;
4557         unsigned int handled = 1;
4558
4559         /* In INTx mode, it is possible for the interrupt to arrive at
4560          * the CPU before the status block posted prior to the interrupt.
4561          * Reading the PCI State register will confirm whether the
4562          * interrupt is ours and will flush the status block.
4563          */
4564         if (unlikely(!(sblk->status & SD_STATUS_UPDATED))) {
4565                 if ((tp->tg3_flags & TG3_FLAG_CHIP_RESETTING) ||
4566                     (tr32(TG3PCI_PCISTATE) & PCISTATE_INT_NOT_ACTIVE)) {
4567                         handled = 0;
4568                         goto out;
4569                 }
4570         }
4571
4572         /*
4573          * Writing any value to intr-mbox-0 clears PCI INTA# and
4574          * chip-internal interrupt pending events.
4575          * Writing non-zero to intr-mbox-0 additional tells the
4576          * NIC to stop sending us irqs, engaging "in-intr-handler"
4577          * event coalescing.
4578          *
4579          * Flush the mailbox to de-assert the IRQ immediately to prevent
4580          * spurious interrupts.  The flush impacts performance but
4581          * excessive spurious interrupts can be worse in some cases.
4582          */
4583         tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0x00000001);
4584         if (tg3_irq_sync(tp))
4585                 goto out;
4586         sblk->status &= ~SD_STATUS_UPDATED;
4587         if (likely(tg3_has_work(tp))) {
4588                 prefetch(&tp->rx_rcb[tp->rx_rcb_ptr]);
4589                 netif_rx_schedule(&tp->napi);
4590         } else {
4591                 /* No work, shared interrupt perhaps?  re-enable
4592                  * interrupts, and flush that PCI write
4593                  */
4594                 tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW,
4595                                0x00000000);
4596         }
4597 out:
4598         return IRQ_RETVAL(handled);
4599 }
4600
4601 static irqreturn_t tg3_interrupt_tagged(int irq, void *dev_id)
4602 {
4603         struct net_device *dev = dev_id;
4604         struct tg3 *tp = netdev_priv(dev);
4605         struct tg3_hw_status *sblk = tp->hw_status;
4606         unsigned int handled = 1;
4607
4608         /* In INTx mode, it is possible for the interrupt to arrive at
4609          * the CPU before the status block posted prior to the interrupt.
4610          * Reading the PCI State register will confirm whether the
4611          * interrupt is ours and will flush the status block.
4612          */
4613         if (unlikely(sblk->status_tag == tp->last_tag)) {
4614                 if ((tp->tg3_flags & TG3_FLAG_CHIP_RESETTING) ||
4615                     (tr32(TG3PCI_PCISTATE) & PCISTATE_INT_NOT_ACTIVE)) {
4616                         handled = 0;
4617                         goto out;
4618                 }
4619         }
4620
4621         /*
4622          * writing any value to intr-mbox-0 clears PCI INTA# and
4623          * chip-internal interrupt pending events.
4624          * writing non-zero to intr-mbox-0 additional tells the
4625          * NIC to stop sending us irqs, engaging "in-intr-handler"
4626          * event coalescing.
4627          *
4628          * Flush the mailbox to de-assert the IRQ immediately to prevent
4629          * spurious interrupts.  The flush impacts performance but
4630          * excessive spurious interrupts can be worse in some cases.
4631          */
4632         tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0x00000001);
4633         if (tg3_irq_sync(tp))
4634                 goto out;
4635         if (netif_rx_schedule_prep(&tp->napi)) {
4636                 prefetch(&tp->rx_rcb[tp->rx_rcb_ptr]);
4637                 /* Update last_tag to mark that this status has been
4638                  * seen. Because interrupt may be shared, we may be
4639                  * racing with tg3_poll(), so only update last_tag
4640                  * if tg3_poll() is not scheduled.
4641                  */
4642                 tp->last_tag = sblk->status_tag;
4643                 __netif_rx_schedule(&tp->napi);
4644         }
4645 out:
4646         return IRQ_RETVAL(handled);
4647 }
4648
4649 /* ISR for interrupt test */
4650 static irqreturn_t tg3_test_isr(int irq, void *dev_id)
4651 {
4652         struct net_device *dev = dev_id;
4653         struct tg3 *tp = netdev_priv(dev);
4654         struct tg3_hw_status *sblk = tp->hw_status;
4655
4656         if ((sblk->status & SD_STATUS_UPDATED) ||
4657             !(tr32(TG3PCI_PCISTATE) & PCISTATE_INT_NOT_ACTIVE)) {
4658                 tg3_disable_ints(tp);
4659                 return IRQ_RETVAL(1);
4660         }
4661         return IRQ_RETVAL(0);
4662 }
4663
4664 static int tg3_init_hw(struct tg3 *, int);
4665 static int tg3_halt(struct tg3 *, int, int);
4666
4667 /* Restart hardware after configuration changes, self-test, etc.
4668  * Invoked with tp->lock held.
4669  */
4670 static int tg3_restart_hw(struct tg3 *tp, int reset_phy)
4671         __releases(tp->lock)
4672         __acquires(tp->lock)
4673 {
4674         int err;
4675
4676         err = tg3_init_hw(tp, reset_phy);
4677         if (err) {
4678                 printk(KERN_ERR PFX "%s: Failed to re-initialize device, "
4679                        "aborting.\n", tp->dev->name);
4680                 tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
4681                 tg3_full_unlock(tp);
4682                 del_timer_sync(&tp->timer);
4683                 tp->irq_sync = 0;
4684                 napi_enable(&tp->napi);
4685                 dev_close(tp->dev);
4686                 tg3_full_lock(tp, 0);
4687         }
4688         return err;
4689 }
4690
4691 #ifdef CONFIG_NET_POLL_CONTROLLER
4692 static void tg3_poll_controller(struct net_device *dev)
4693 {
4694         struct tg3 *tp = netdev_priv(dev);
4695
4696         tg3_interrupt(tp->pdev->irq, dev);
4697 }
4698 #endif
4699
4700 static void tg3_reset_task(struct work_struct *work)
4701 {
4702         struct tg3 *tp = container_of(work, struct tg3, reset_task);
4703         int err;
4704         unsigned int restart_timer;
4705
4706         tg3_full_lock(tp, 0);
4707
4708         if (!netif_running(tp->dev)) {
4709                 tg3_full_unlock(tp);
4710                 return;
4711         }
4712
4713         tg3_full_unlock(tp);
4714
4715         tg3_phy_stop(tp);
4716
4717         tg3_netif_stop(tp);
4718
4719         tg3_full_lock(tp, 1);
4720
4721         restart_timer = tp->tg3_flags2 & TG3_FLG2_RESTART_TIMER;
4722         tp->tg3_flags2 &= ~TG3_FLG2_RESTART_TIMER;
4723
4724         if (tp->tg3_flags & TG3_FLAG_TX_RECOVERY_PENDING) {
4725                 tp->write32_tx_mbox = tg3_write32_tx_mbox;
4726                 tp->write32_rx_mbox = tg3_write_flush_reg32;
4727                 tp->tg3_flags |= TG3_FLAG_MBOX_WRITE_REORDER;
4728                 tp->tg3_flags &= ~TG3_FLAG_TX_RECOVERY_PENDING;
4729         }
4730
4731         tg3_halt(tp, RESET_KIND_SHUTDOWN, 0);
4732         err = tg3_init_hw(tp, 1);
4733         if (err)
4734                 goto out;
4735
4736         tg3_netif_start(tp);
4737
4738         if (restart_timer)
4739                 mod_timer(&tp->timer, jiffies + 1);
4740
4741 out:
4742         tg3_full_unlock(tp);
4743
4744         if (!err)
4745                 tg3_phy_start(tp);
4746 }
4747
4748 static void tg3_dump_short_state(struct tg3 *tp)
4749 {
4750         printk(KERN_ERR PFX "DEBUG: MAC_TX_STATUS[%08x] MAC_RX_STATUS[%08x]\n",
4751                tr32(MAC_TX_STATUS), tr32(MAC_RX_STATUS));
4752         printk(KERN_ERR PFX "DEBUG: RDMAC_STATUS[%08x] WDMAC_STATUS[%08x]\n",
4753                tr32(RDMAC_STATUS), tr32(WDMAC_STATUS));
4754 }
4755
4756 static void tg3_tx_timeout(struct net_device *dev)
4757 {
4758         struct tg3 *tp = netdev_priv(dev);
4759
4760         if (netif_msg_tx_err(tp)) {
4761                 printk(KERN_ERR PFX "%s: transmit timed out, resetting\n",
4762                        dev->name);
4763                 tg3_dump_short_state(tp);
4764         }
4765
4766         schedule_work(&tp->reset_task);
4767 }
4768
4769 /* Test for DMA buffers crossing any 4GB boundaries: 4G, 8G, etc */
4770 static inline int tg3_4g_overflow_test(dma_addr_t mapping, int len)
4771 {
4772         u32 base = (u32) mapping & 0xffffffff;
4773
4774         return ((base > 0xffffdcc0) &&
4775                 (base + len + 8 < base));
4776 }
4777
4778 /* Test for DMA addresses > 40-bit */
4779 static inline int tg3_40bit_overflow_test(struct tg3 *tp, dma_addr_t mapping,
4780                                           int len)
4781 {
4782 #if defined(CONFIG_HIGHMEM) && (BITS_PER_LONG == 64)
4783         if (tp->tg3_flags & TG3_FLAG_40BIT_DMA_BUG)
4784                 return (((u64) mapping + len) > DMA_40BIT_MASK);
4785         return 0;
4786 #else
4787         return 0;
4788 #endif
4789 }
4790
4791 static void tg3_set_txd(struct tg3 *, int, dma_addr_t, int, u32, u32);
4792
4793 /* Workaround 4GB and 40-bit hardware DMA bugs. */
4794 static int tigon3_dma_hwbug_workaround(struct tg3 *tp, struct sk_buff *skb,
4795                                        u32 last_plus_one, u32 *start,
4796                                        u32 base_flags, u32 mss)
4797 {
4798         struct sk_buff *new_skb;
4799         dma_addr_t new_addr = 0;
4800         u32 entry = *start;
4801         int i, ret = 0;
4802
4803         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701)
4804                 new_skb = skb_copy(skb, GFP_ATOMIC);
4805         else {
4806                 int more_headroom = 4 - ((unsigned long)skb->data & 3);
4807
4808                 new_skb = skb_copy_expand(skb,
4809                                           skb_headroom(skb) + more_headroom,
4810                                           skb_tailroom(skb), GFP_ATOMIC);
4811         }
4812
4813         if (!new_skb) {
4814                 ret = -1;
4815         } else {
4816                 /* New SKB is guaranteed to be linear. */
4817                 entry = *start;
4818                 ret = skb_dma_map(&tp->pdev->dev, new_skb, DMA_TO_DEVICE);
4819                 new_addr = skb_shinfo(new_skb)->dma_maps[0];
4820
4821                 /* Make sure new skb does not cross any 4G boundaries.
4822                  * Drop the packet if it does.
4823                  */
4824                 if (ret || tg3_4g_overflow_test(new_addr, new_skb->len)) {
4825                         if (!ret)
4826                                 skb_dma_unmap(&tp->pdev->dev, new_skb,
4827                                               DMA_TO_DEVICE);
4828                         ret = -1;
4829                         dev_kfree_skb(new_skb);
4830                         new_skb = NULL;
4831                 } else {
4832                         tg3_set_txd(tp, entry, new_addr, new_skb->len,
4833                                     base_flags, 1 | (mss << 1));
4834                         *start = NEXT_TX(entry);
4835                 }
4836         }
4837
4838         /* Now clean up the sw ring entries. */
4839         i = 0;
4840         while (entry != last_plus_one) {
4841                 if (i == 0) {
4842                         tp->tx_buffers[entry].skb = new_skb;
4843                 } else {
4844                         tp->tx_buffers[entry].skb = NULL;
4845                 }
4846                 entry = NEXT_TX(entry);
4847                 i++;
4848         }
4849
4850         skb_dma_unmap(&tp->pdev->dev, skb, DMA_TO_DEVICE);
4851         dev_kfree_skb(skb);
4852
4853         return ret;
4854 }
4855
4856 static void tg3_set_txd(struct tg3 *tp, int entry,
4857                         dma_addr_t mapping, int len, u32 flags,
4858                         u32 mss_and_is_end)
4859 {
4860         struct tg3_tx_buffer_desc *txd = &tp->tx_ring[entry];
4861         int is_end = (mss_and_is_end & 0x1);
4862         u32 mss = (mss_and_is_end >> 1);
4863         u32 vlan_tag = 0;
4864
4865         if (is_end)
4866                 flags |= TXD_FLAG_END;
4867         if (flags & TXD_FLAG_VLAN) {
4868                 vlan_tag = flags >> 16;
4869                 flags &= 0xffff;
4870         }
4871         vlan_tag |= (mss << TXD_MSS_SHIFT);
4872
4873         txd->addr_hi = ((u64) mapping >> 32);
4874         txd->addr_lo = ((u64) mapping & 0xffffffff);
4875         txd->len_flags = (len << TXD_LEN_SHIFT) | flags;
4876         txd->vlan_tag = vlan_tag << TXD_VLAN_TAG_SHIFT;
4877 }
4878
4879 /* hard_start_xmit for devices that don't have any bugs and
4880  * support TG3_FLG2_HW_TSO_2 only.
4881  */
4882 static int tg3_start_xmit(struct sk_buff *skb, struct net_device *dev)
4883 {
4884         struct tg3 *tp = netdev_priv(dev);
4885         u32 len, entry, base_flags, mss;
4886         struct skb_shared_info *sp;
4887         dma_addr_t mapping;
4888
4889         len = skb_headlen(skb);
4890
4891         /* We are running in BH disabled context with netif_tx_lock
4892          * and TX reclaim runs via tp->napi.poll inside of a software
4893          * interrupt.  Furthermore, IRQ processing runs lockless so we have
4894          * no IRQ context deadlocks to worry about either.  Rejoice!
4895          */
4896         if (unlikely(tg3_tx_avail(tp) <= (skb_shinfo(skb)->nr_frags + 1))) {
4897                 if (!netif_queue_stopped(dev)) {
4898                         netif_stop_queue(dev);
4899
4900                         /* This is a hard error, log it. */
4901                         printk(KERN_ERR PFX "%s: BUG! Tx Ring full when "
4902                                "queue awake!\n", dev->name);
4903                 }
4904                 return NETDEV_TX_BUSY;
4905         }
4906
4907         entry = tp->tx_prod;
4908         base_flags = 0;
4909         mss = 0;
4910         if ((mss = skb_shinfo(skb)->gso_size) != 0) {
4911                 int tcp_opt_len, ip_tcp_len;
4912
4913                 if (skb_header_cloned(skb) &&
4914                     pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) {
4915                         dev_kfree_skb(skb);
4916                         goto out_unlock;
4917                 }
4918
4919                 if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6)
4920                         mss |= (skb_headlen(skb) - ETH_HLEN) << 9;
4921                 else {
4922                         struct iphdr *iph = ip_hdr(skb);
4923
4924                         tcp_opt_len = tcp_optlen(skb);
4925                         ip_tcp_len = ip_hdrlen(skb) + sizeof(struct tcphdr);
4926
4927                         iph->check = 0;
4928                         iph->tot_len = htons(mss + ip_tcp_len + tcp_opt_len);
4929                         mss |= (ip_tcp_len + tcp_opt_len) << 9;
4930                 }
4931
4932                 base_flags |= (TXD_FLAG_CPU_PRE_DMA |
4933                                TXD_FLAG_CPU_POST_DMA);
4934
4935                 tcp_hdr(skb)->check = 0;
4936
4937         }
4938         else if (skb->ip_summed == CHECKSUM_PARTIAL)
4939                 base_flags |= TXD_FLAG_TCPUDP_CSUM;
4940 #if TG3_VLAN_TAG_USED
4941         if (tp->vlgrp != NULL && vlan_tx_tag_present(skb))
4942                 base_flags |= (TXD_FLAG_VLAN |
4943                                (vlan_tx_tag_get(skb) << 16));
4944 #endif
4945
4946         if (skb_dma_map(&tp->pdev->dev, skb, DMA_TO_DEVICE)) {
4947                 dev_kfree_skb(skb);
4948                 goto out_unlock;
4949         }
4950
4951         sp = skb_shinfo(skb);
4952
4953         mapping = sp->dma_maps[0];
4954
4955         tp->tx_buffers[entry].skb = skb;
4956
4957         tg3_set_txd(tp, entry, mapping, len, base_flags,
4958                     (skb_shinfo(skb)->nr_frags == 0) | (mss << 1));
4959
4960         entry = NEXT_TX(entry);
4961
4962         /* Now loop through additional data fragments, and queue them. */
4963         if (skb_shinfo(skb)->nr_frags > 0) {
4964                 unsigned int i, last;
4965
4966                 last = skb_shinfo(skb)->nr_frags - 1;
4967                 for (i = 0; i <= last; i++) {
4968                         skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
4969
4970                         len = frag->size;
4971                         mapping = sp->dma_maps[i + 1];
4972                         tp->tx_buffers[entry].skb = NULL;
4973
4974                         tg3_set_txd(tp, entry, mapping, len,
4975                                     base_flags, (i == last) | (mss << 1));
4976
4977                         entry = NEXT_TX(entry);
4978                 }
4979         }
4980
4981         /* Packets are ready, update Tx producer idx local and on card. */
4982         tw32_tx_mbox((MAILBOX_SNDHOST_PROD_IDX_0 + TG3_64BIT_REG_LOW), entry);
4983
4984         tp->tx_prod = entry;
4985         if (unlikely(tg3_tx_avail(tp) <= (MAX_SKB_FRAGS + 1))) {
4986                 netif_stop_queue(dev);
4987                 if (tg3_tx_avail(tp) > TG3_TX_WAKEUP_THRESH(tp))
4988                         netif_wake_queue(tp->dev);
4989         }
4990
4991 out_unlock:
4992         mmiowb();
4993
4994         dev->trans_start = jiffies;
4995
4996         return NETDEV_TX_OK;
4997 }
4998
4999 static int tg3_start_xmit_dma_bug(struct sk_buff *, struct net_device *);
5000
5001 /* Use GSO to workaround a rare TSO bug that may be triggered when the
5002  * TSO header is greater than 80 bytes.
5003  */
5004 static int tg3_tso_bug(struct tg3 *tp, struct sk_buff *skb)
5005 {
5006         struct sk_buff *segs, *nskb;
5007
5008         /* Estimate the number of fragments in the worst case */
5009         if (unlikely(tg3_tx_avail(tp) <= (skb_shinfo(skb)->gso_segs * 3))) {
5010                 netif_stop_queue(tp->dev);
5011                 if (tg3_tx_avail(tp) <= (skb_shinfo(skb)->gso_segs * 3))
5012                         return NETDEV_TX_BUSY;
5013
5014                 netif_wake_queue(tp->dev);
5015         }
5016
5017         segs = skb_gso_segment(skb, tp->dev->features & ~NETIF_F_TSO);
5018         if (IS_ERR(segs))
5019                 goto tg3_tso_bug_end;
5020
5021         do {
5022                 nskb = segs;
5023                 segs = segs->next;
5024                 nskb->next = NULL;
5025                 tg3_start_xmit_dma_bug(nskb, tp->dev);
5026         } while (segs);
5027
5028 tg3_tso_bug_end:
5029         dev_kfree_skb(skb);
5030
5031         return NETDEV_TX_OK;
5032 }
5033
5034 /* hard_start_xmit for devices that have the 4G bug and/or 40-bit bug and
5035  * support TG3_FLG2_HW_TSO_1 or firmware TSO only.
5036  */
5037 static int tg3_start_xmit_dma_bug(struct sk_buff *skb, struct net_device *dev)
5038 {
5039         struct tg3 *tp = netdev_priv(dev);
5040         u32 len, entry, base_flags, mss;
5041         struct skb_shared_info *sp;
5042         int would_hit_hwbug;
5043         dma_addr_t mapping;
5044
5045         len = skb_headlen(skb);
5046
5047         /* We are running in BH disabled context with netif_tx_lock
5048          * and TX reclaim runs via tp->napi.poll inside of a software
5049          * interrupt.  Furthermore, IRQ processing runs lockless so we have
5050          * no IRQ context deadlocks to worry about either.  Rejoice!
5051          */
5052         if (unlikely(tg3_tx_avail(tp) <= (skb_shinfo(skb)->nr_frags + 1))) {
5053                 if (!netif_queue_stopped(dev)) {
5054                         netif_stop_queue(dev);
5055
5056                         /* This is a hard error, log it. */
5057                         printk(KERN_ERR PFX "%s: BUG! Tx Ring full when "
5058                                "queue awake!\n", dev->name);
5059                 }
5060                 return NETDEV_TX_BUSY;
5061         }
5062
5063         entry = tp->tx_prod;
5064         base_flags = 0;
5065         if (skb->ip_summed == CHECKSUM_PARTIAL)
5066                 base_flags |= TXD_FLAG_TCPUDP_CSUM;
5067         mss = 0;
5068         if ((mss = skb_shinfo(skb)->gso_size) != 0) {
5069                 struct iphdr *iph;
5070                 int tcp_opt_len, ip_tcp_len, hdr_len;
5071
5072                 if (skb_header_cloned(skb) &&
5073                     pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) {
5074                         dev_kfree_skb(skb);
5075                         goto out_unlock;
5076                 }
5077
5078                 tcp_opt_len = tcp_optlen(skb);
5079                 ip_tcp_len = ip_hdrlen(skb) + sizeof(struct tcphdr);
5080
5081                 hdr_len = ip_tcp_len + tcp_opt_len;
5082                 if (unlikely((ETH_HLEN + hdr_len) > 80) &&
5083                              (tp->tg3_flags2 & TG3_FLG2_TSO_BUG))
5084                         return (tg3_tso_bug(tp, skb));
5085
5086                 base_flags |= (TXD_FLAG_CPU_PRE_DMA |
5087                                TXD_FLAG_CPU_POST_DMA);
5088
5089                 iph = ip_hdr(skb);
5090                 iph->check = 0;
5091                 iph->tot_len = htons(mss + hdr_len);
5092                 if (tp->tg3_flags2 & TG3_FLG2_HW_TSO) {
5093                         tcp_hdr(skb)->check = 0;
5094                         base_flags &= ~TXD_FLAG_TCPUDP_CSUM;
5095                 } else
5096                         tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr,
5097                                                                  iph->daddr, 0,
5098                                                                  IPPROTO_TCP,
5099                                                                  0);
5100
5101                 if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO) ||
5102                     (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705)) {
5103                         if (tcp_opt_len || iph->ihl > 5) {
5104                                 int tsflags;
5105
5106                                 tsflags = (iph->ihl - 5) + (tcp_opt_len >> 2);
5107                                 mss |= (tsflags << 11);
5108                         }
5109                 } else {
5110                         if (tcp_opt_len || iph->ihl > 5) {
5111                                 int tsflags;
5112
5113                                 tsflags = (iph->ihl - 5) + (tcp_opt_len >> 2);
5114                                 base_flags |= tsflags << 12;
5115                         }
5116                 }
5117         }
5118 #if TG3_VLAN_TAG_USED
5119         if (tp->vlgrp != NULL && vlan_tx_tag_present(skb))
5120                 base_flags |= (TXD_FLAG_VLAN |
5121                                (vlan_tx_tag_get(skb) << 16));
5122 #endif
5123
5124         if (skb_dma_map(&tp->pdev->dev, skb, DMA_TO_DEVICE)) {
5125                 dev_kfree_skb(skb);
5126                 goto out_unlock;
5127         }
5128
5129         sp = skb_shinfo(skb);
5130
5131         mapping = sp->dma_maps[0];
5132
5133         tp->tx_buffers[entry].skb = skb;
5134
5135         would_hit_hwbug = 0;
5136
5137         if (tp->tg3_flags3 & TG3_FLG3_5701_DMA_BUG)
5138                 would_hit_hwbug = 1;
5139         else if (tg3_4g_overflow_test(mapping, len))
5140                 would_hit_hwbug = 1;
5141
5142         tg3_set_txd(tp, entry, mapping, len, base_flags,
5143                     (skb_shinfo(skb)->nr_frags == 0) | (mss << 1));
5144
5145         entry = NEXT_TX(entry);
5146
5147         /* Now loop through additional data fragments, and queue them. */
5148         if (skb_shinfo(skb)->nr_frags > 0) {
5149                 unsigned int i, last;
5150
5151                 last = skb_shinfo(skb)->nr_frags - 1;
5152                 for (i = 0; i <= last; i++) {
5153                         skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
5154
5155                         len = frag->size;
5156                         mapping = sp->dma_maps[i + 1];
5157
5158                         tp->tx_buffers[entry].skb = NULL;
5159
5160                         if (tg3_4g_overflow_test(mapping, len))
5161                                 would_hit_hwbug = 1;
5162
5163                         if (tg3_40bit_overflow_test(tp, mapping, len))
5164                                 would_hit_hwbug = 1;
5165
5166                         if (tp->tg3_flags2 & TG3_FLG2_HW_TSO)
5167                                 tg3_set_txd(tp, entry, mapping, len,
5168                                             base_flags, (i == last)|(mss << 1));
5169                         else
5170                                 tg3_set_txd(tp, entry, mapping, len,
5171                                             base_flags, (i == last));
5172
5173                         entry = NEXT_TX(entry);
5174                 }
5175         }
5176
5177         if (would_hit_hwbug) {
5178                 u32 last_plus_one = entry;
5179                 u32 start;
5180
5181                 start = entry - 1 - skb_shinfo(skb)->nr_frags;
5182                 start &= (TG3_TX_RING_SIZE - 1);
5183
5184                 /* If the workaround fails due to memory/mapping
5185                  * failure, silently drop this packet.
5186                  */
5187                 if (tigon3_dma_hwbug_workaround(tp, skb, last_plus_one,
5188                                                 &start, base_flags, mss))
5189                         goto out_unlock;
5190
5191                 entry = start;
5192         }
5193
5194         /* Packets are ready, update Tx producer idx local and on card. */
5195         tw32_tx_mbox((MAILBOX_SNDHOST_PROD_IDX_0 + TG3_64BIT_REG_LOW), entry);
5196
5197         tp->tx_prod = entry;
5198         if (unlikely(tg3_tx_avail(tp) <= (MAX_SKB_FRAGS + 1))) {
5199                 netif_stop_queue(dev);
5200                 if (tg3_tx_avail(tp) > TG3_TX_WAKEUP_THRESH(tp))
5201                         netif_wake_queue(tp->dev);
5202         }
5203
5204 out_unlock:
5205         mmiowb();
5206
5207         dev->trans_start = jiffies;
5208
5209         return NETDEV_TX_OK;
5210 }
5211
5212 static inline void tg3_set_mtu(struct net_device *dev, struct tg3 *tp,
5213                                int new_mtu)
5214 {
5215         dev->mtu = new_mtu;
5216
5217         if (new_mtu > ETH_DATA_LEN) {
5218                 if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS) {
5219                         tp->tg3_flags2 &= ~TG3_FLG2_TSO_CAPABLE;
5220                         ethtool_op_set_tso(dev, 0);
5221                 }
5222                 else
5223                         tp->tg3_flags |= TG3_FLAG_JUMBO_RING_ENABLE;
5224         } else {
5225                 if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)
5226                         tp->tg3_flags2 |= TG3_FLG2_TSO_CAPABLE;
5227                 tp->tg3_flags &= ~TG3_FLAG_JUMBO_RING_ENABLE;
5228         }
5229 }
5230
5231 static int tg3_change_mtu(struct net_device *dev, int new_mtu)
5232 {
5233         struct tg3 *tp = netdev_priv(dev);
5234         int err;
5235
5236         if (new_mtu < TG3_MIN_MTU || new_mtu > TG3_MAX_MTU(tp))
5237                 return -EINVAL;
5238
5239         if (!netif_running(dev)) {
5240                 /* We'll just catch it later when the
5241                  * device is up'd.
5242                  */
5243                 tg3_set_mtu(dev, tp, new_mtu);
5244                 return 0;
5245         }
5246
5247         tg3_phy_stop(tp);
5248
5249         tg3_netif_stop(tp);
5250
5251         tg3_full_lock(tp, 1);
5252
5253         tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
5254
5255         tg3_set_mtu(dev, tp, new_mtu);
5256
5257         err = tg3_restart_hw(tp, 0);
5258
5259         if (!err)
5260                 tg3_netif_start(tp);
5261
5262         tg3_full_unlock(tp);
5263
5264         if (!err)
5265                 tg3_phy_start(tp);
5266
5267         return err;
5268 }
5269
5270 /* Free up pending packets in all rx/tx rings.
5271  *
5272  * The chip has been shut down and the driver detached from
5273  * the networking, so no interrupts or new tx packets will
5274  * end up in the driver.  tp->{tx,}lock is not held and we are not
5275  * in an interrupt context and thus may sleep.
5276  */
5277 static void tg3_free_rings(struct tg3 *tp)
5278 {
5279         struct ring_info *rxp;
5280         int i;
5281
5282         for (i = 0; i < TG3_RX_RING_SIZE; i++) {
5283                 rxp = &tp->rx_std_buffers[i];
5284
5285                 if (rxp->skb == NULL)
5286                         continue;
5287                 pci_unmap_single(tp->pdev,
5288                                  pci_unmap_addr(rxp, mapping),
5289                                  tp->rx_pkt_buf_sz - tp->rx_offset,
5290                                  PCI_DMA_FROMDEVICE);
5291                 dev_kfree_skb_any(rxp->skb);
5292                 rxp->skb = NULL;
5293         }
5294
5295         for (i = 0; i < TG3_RX_JUMBO_RING_SIZE; i++) {
5296                 rxp = &tp->rx_jumbo_buffers[i];
5297
5298                 if (rxp->skb == NULL)
5299                         continue;
5300                 pci_unmap_single(tp->pdev,
5301                                  pci_unmap_addr(rxp, mapping),
5302                                  RX_JUMBO_PKT_BUF_SZ - tp->rx_offset,
5303                                  PCI_DMA_FROMDEVICE);
5304                 dev_kfree_skb_any(rxp->skb);
5305                 rxp->skb = NULL;
5306         }
5307
5308         for (i = 0; i < TG3_TX_RING_SIZE; ) {
5309                 struct tx_ring_info *txp;
5310                 struct sk_buff *skb;
5311
5312                 txp = &tp->tx_buffers[i];
5313                 skb = txp->skb;
5314
5315                 if (skb == NULL) {
5316                         i++;
5317                         continue;
5318                 }
5319
5320                 skb_dma_unmap(&tp->pdev->dev, skb, DMA_TO_DEVICE);
5321
5322                 txp->skb = NULL;
5323
5324                 i += skb_shinfo(skb)->nr_frags + 1;
5325
5326                 dev_kfree_skb_any(skb);
5327         }
5328 }
5329
5330 /* Initialize tx/rx rings for packet processing.
5331  *
5332  * The chip has been shut down and the driver detached from
5333  * the networking, so no interrupts or new tx packets will
5334  * end up in the driver.  tp->{tx,}lock are held and thus
5335  * we may not sleep.
5336  */
5337 static int tg3_init_rings(struct tg3 *tp)
5338 {
5339         u32 i;
5340
5341         /* Free up all the SKBs. */
5342         tg3_free_rings(tp);
5343
5344         /* Zero out all descriptors. */
5345         memset(tp->rx_std, 0, TG3_RX_RING_BYTES);
5346         memset(tp->rx_jumbo, 0, TG3_RX_JUMBO_RING_BYTES);
5347         memset(tp->rx_rcb, 0, TG3_RX_RCB_RING_BYTES(tp));
5348         memset(tp->tx_ring, 0, TG3_TX_RING_BYTES);
5349
5350         tp->rx_pkt_buf_sz = RX_PKT_BUF_SZ;
5351         if ((tp->tg3_flags2 & TG3_FLG2_5780_CLASS) &&
5352             (tp->dev->mtu > ETH_DATA_LEN))
5353                 tp->rx_pkt_buf_sz = RX_JUMBO_PKT_BUF_SZ;
5354
5355         /* Initialize invariants of the rings, we only set this
5356          * stuff once.  This works because the card does not
5357          * write into the rx buffer posting rings.
5358          */
5359         for (i = 0; i < TG3_RX_RING_SIZE; i++) {
5360                 struct tg3_rx_buffer_desc *rxd;
5361
5362                 rxd = &tp->rx_std[i];
5363                 rxd->idx_len = (tp->rx_pkt_buf_sz - tp->rx_offset - 64)
5364                         << RXD_LEN_SHIFT;
5365                 rxd->type_flags = (RXD_FLAG_END << RXD_FLAGS_SHIFT);
5366                 rxd->opaque = (RXD_OPAQUE_RING_STD |
5367                                (i << RXD_OPAQUE_INDEX_SHIFT));
5368         }
5369
5370         if (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE) {
5371                 for (i = 0; i < TG3_RX_JUMBO_RING_SIZE; i++) {
5372                         struct tg3_rx_buffer_desc *rxd;
5373
5374                         rxd = &tp->rx_jumbo[i];
5375                         rxd->idx_len = (RX_JUMBO_PKT_BUF_SZ - tp->rx_offset - 64)
5376                                 << RXD_LEN_SHIFT;
5377                         rxd->type_flags = (RXD_FLAG_END << RXD_FLAGS_SHIFT) |
5378                                 RXD_FLAG_JUMBO;
5379                         rxd->opaque = (RXD_OPAQUE_RING_JUMBO |
5380                                (i << RXD_OPAQUE_INDEX_SHIFT));
5381                 }
5382         }
5383
5384         /* Now allocate fresh SKBs for each rx ring. */
5385         for (i = 0; i < tp->rx_pending; i++) {
5386                 if (tg3_alloc_rx_skb(tp, RXD_OPAQUE_RING_STD, -1, i) < 0) {
5387                         printk(KERN_WARNING PFX
5388                                "%s: Using a smaller RX standard ring, "
5389                                "only %d out of %d buffers were allocated "
5390                                "successfully.\n",
5391                                tp->dev->name, i, tp->rx_pending);
5392                         if (i == 0)
5393                                 return -ENOMEM;
5394                         tp->rx_pending = i;
5395                         break;
5396                 }
5397         }
5398
5399         if (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE) {
5400                 for (i = 0; i < tp->rx_jumbo_pending; i++) {
5401                         if (tg3_alloc_rx_skb(tp, RXD_OPAQUE_RING_JUMBO,
5402                                              -1, i) < 0) {
5403                                 printk(KERN_WARNING PFX
5404                                        "%s: Using a smaller RX jumbo ring, "
5405                                        "only %d out of %d buffers were "
5406                                        "allocated successfully.\n",
5407                                        tp->dev->name, i, tp->rx_jumbo_pending);
5408                                 if (i == 0) {
5409                                         tg3_free_rings(tp);
5410                                         return -ENOMEM;
5411                                 }
5412                                 tp->rx_jumbo_pending = i;
5413                                 break;
5414                         }
5415                 }
5416         }
5417         return 0;
5418 }
5419
5420 /*
5421  * Must not be invoked with interrupt sources disabled and
5422  * the hardware shutdown down.
5423  */
5424 static void tg3_free_consistent(struct tg3 *tp)
5425 {
5426         kfree(tp->rx_std_buffers);
5427         tp->rx_std_buffers = NULL;
5428         if (tp->rx_std) {
5429                 pci_free_consistent(tp->pdev, TG3_RX_RING_BYTES,
5430                                     tp->rx_std, tp->rx_std_mapping);
5431                 tp->rx_std = NULL;
5432         }
5433         if (tp->rx_jumbo) {
5434                 pci_free_consistent(tp->pdev, TG3_RX_JUMBO_RING_BYTES,
5435                                     tp->rx_jumbo, tp->rx_jumbo_mapping);
5436                 tp->rx_jumbo = NULL;
5437         }
5438         if (tp->rx_rcb) {
5439                 pci_free_consistent(tp->pdev, TG3_RX_RCB_RING_BYTES(tp),
5440                                     tp->rx_rcb, tp->rx_rcb_mapping);
5441                 tp->rx_rcb = NULL;
5442         }
5443         if (tp->tx_ring) {
5444                 pci_free_consistent(tp->pdev, TG3_TX_RING_BYTES,
5445                         tp->tx_ring, tp->tx_desc_mapping);
5446                 tp->tx_ring = NULL;
5447         }
5448         if (tp->hw_status) {
5449                 pci_free_consistent(tp->pdev, TG3_HW_STATUS_SIZE,
5450                                     tp->hw_status, tp->status_mapping);
5451                 tp->hw_status = NULL;
5452         }
5453         if (tp->hw_stats) {
5454                 pci_free_consistent(tp->pdev, sizeof(struct tg3_hw_stats),
5455                                     tp->hw_stats, tp->stats_mapping);
5456                 tp->hw_stats = NULL;
5457         }
5458 }
5459
5460 /*
5461  * Must not be invoked with interrupt sources disabled and
5462  * the hardware shutdown down.  Can sleep.
5463  */
5464 static int tg3_alloc_consistent(struct tg3 *tp)
5465 {
5466         tp->rx_std_buffers = kzalloc((sizeof(struct ring_info) *
5467                                       (TG3_RX_RING_SIZE +
5468                                        TG3_RX_JUMBO_RING_SIZE)) +
5469                                      (sizeof(struct tx_ring_info) *
5470                                       TG3_TX_RING_SIZE),
5471                                      GFP_KERNEL);
5472         if (!tp->rx_std_buffers)
5473                 return -ENOMEM;
5474
5475         tp->rx_jumbo_buffers = &tp->rx_std_buffers[TG3_RX_RING_SIZE];
5476         tp->tx_buffers = (struct tx_ring_info *)
5477                 &tp->rx_jumbo_buffers[TG3_RX_JUMBO_RING_SIZE];
5478
5479         tp->rx_std = pci_alloc_consistent(tp->pdev, TG3_RX_RING_BYTES,
5480                                           &tp->rx_std_mapping);
5481         if (!tp->rx_std)
5482                 goto err_out;
5483
5484         tp->rx_jumbo = pci_alloc_consistent(tp->pdev, TG3_RX_JUMBO_RING_BYTES,
5485                                             &tp->rx_jumbo_mapping);
5486
5487         if (!tp->rx_jumbo)
5488                 goto err_out;
5489
5490         tp->rx_rcb = pci_alloc_consistent(tp->pdev, TG3_RX_RCB_RING_BYTES(tp),
5491                                           &tp->rx_rcb_mapping);
5492         if (!tp->rx_rcb)
5493                 goto err_out;
5494
5495         tp->tx_ring = pci_alloc_consistent(tp->pdev, TG3_TX_RING_BYTES,
5496                                            &tp->tx_desc_mapping);
5497         if (!tp->tx_ring)
5498                 goto err_out;
5499
5500         tp->hw_status = pci_alloc_consistent(tp->pdev,
5501                                              TG3_HW_STATUS_SIZE,
5502                                              &tp->status_mapping);
5503         if (!tp->hw_status)
5504                 goto err_out;
5505
5506         tp->hw_stats = pci_alloc_consistent(tp->pdev,
5507                                             sizeof(struct tg3_hw_stats),
5508                                             &tp->stats_mapping);
5509         if (!tp->hw_stats)
5510                 goto err_out;
5511
5512         memset(tp->hw_status, 0, TG3_HW_STATUS_SIZE);
5513         memset(tp->hw_stats, 0, sizeof(struct tg3_hw_stats));
5514
5515         return 0;
5516
5517 err_out:
5518         tg3_free_consistent(tp);
5519         return -ENOMEM;
5520 }
5521
5522 #define MAX_WAIT_CNT 1000
5523
5524 /* To stop a block, clear the enable bit and poll till it
5525  * clears.  tp->lock is held.
5526  */
5527 static int tg3_stop_block(struct tg3 *tp, unsigned long ofs, u32 enable_bit, int silent)
5528 {
5529         unsigned int i;
5530         u32 val;
5531
5532         if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
5533                 switch (ofs) {
5534                 case RCVLSC_MODE:
5535                 case DMAC_MODE:
5536                 case MBFREE_MODE:
5537                 case BUFMGR_MODE:
5538                 case MEMARB_MODE:
5539                         /* We can't enable/disable these bits of the
5540                          * 5705/5750, just say success.
5541                          */
5542                         return 0;
5543
5544                 default:
5545                         break;
5546                 }
5547         }
5548
5549         val = tr32(ofs);
5550         val &= ~enable_bit;
5551         tw32_f(ofs, val);
5552
5553         for (i = 0; i < MAX_WAIT_CNT; i++) {
5554                 udelay(100);
5555                 val = tr32(ofs);
5556                 if ((val & enable_bit) == 0)
5557                         break;
5558         }
5559
5560         if (i == MAX_WAIT_CNT && !silent) {
5561                 printk(KERN_ERR PFX "tg3_stop_block timed out, "
5562                        "ofs=%lx enable_bit=%x\n",
5563                        ofs, enable_bit);
5564                 return -ENODEV;
5565         }
5566
5567         return 0;
5568 }
5569
5570 /* tp->lock is held. */
5571 static int tg3_abort_hw(struct tg3 *tp, int silent)
5572 {
5573         int i, err;
5574
5575         tg3_disable_ints(tp);
5576
5577         tp->rx_mode &= ~RX_MODE_ENABLE;
5578         tw32_f(MAC_RX_MODE, tp->rx_mode);
5579         udelay(10);
5580
5581         err  = tg3_stop_block(tp, RCVBDI_MODE, RCVBDI_MODE_ENABLE, silent);
5582         err |= tg3_stop_block(tp, RCVLPC_MODE, RCVLPC_MODE_ENABLE, silent);
5583         err |= tg3_stop_block(tp, RCVLSC_MODE, RCVLSC_MODE_ENABLE, silent);
5584         err |= tg3_stop_block(tp, RCVDBDI_MODE, RCVDBDI_MODE_ENABLE, silent);
5585         err |= tg3_stop_block(tp, RCVDCC_MODE, RCVDCC_MODE_ENABLE, silent);
5586         err |= tg3_stop_block(tp, RCVCC_MODE, RCVCC_MODE_ENABLE, silent);
5587
5588         err |= tg3_stop_block(tp, SNDBDS_MODE, SNDBDS_MODE_ENABLE, silent);
5589         err |= tg3_stop_block(tp, SNDBDI_MODE, SNDBDI_MODE_ENABLE, silent);
5590         err |= tg3_stop_block(tp, SNDDATAI_MODE, SNDDATAI_MODE_ENABLE, silent);
5591         err |= tg3_stop_block(tp, RDMAC_MODE, RDMAC_MODE_ENABLE, silent);
5592         err |= tg3_stop_block(tp, SNDDATAC_MODE, SNDDATAC_MODE_ENABLE, silent);
5593         err |= tg3_stop_block(tp, DMAC_MODE, DMAC_MODE_ENABLE, silent);
5594         err |= tg3_stop_block(tp, SNDBDC_MODE, SNDBDC_MODE_ENABLE, silent);
5595
5596         tp->mac_mode &= ~MAC_MODE_TDE_ENABLE;
5597         tw32_f(MAC_MODE, tp->mac_mode);
5598         udelay(40);
5599
5600         tp->tx_mode &= ~TX_MODE_ENABLE;
5601         tw32_f(MAC_TX_MODE, tp->tx_mode);
5602
5603         for (i = 0; i < MAX_WAIT_CNT; i++) {
5604                 udelay(100);
5605                 if (!(tr32(MAC_TX_MODE) & TX_MODE_ENABLE))
5606                         break;
5607         }
5608         if (i >= MAX_WAIT_CNT) {
5609                 printk(KERN_ERR PFX "tg3_abort_hw timed out for %s, "
5610                        "TX_MODE_ENABLE will not clear MAC_TX_MODE=%08x\n",
5611                        tp->dev->name, tr32(MAC_TX_MODE));
5612                 err |= -ENODEV;
5613         }
5614
5615         err |= tg3_stop_block(tp, HOSTCC_MODE, HOSTCC_MODE_ENABLE, silent);
5616         err |= tg3_stop_block(tp, WDMAC_MODE, WDMAC_MODE_ENABLE, silent);
5617         err |= tg3_stop_block(tp, MBFREE_MODE, MBFREE_MODE_ENABLE, silent);
5618
5619         tw32(FTQ_RESET, 0xffffffff);
5620         tw32(FTQ_RESET, 0x00000000);
5621
5622         err |= tg3_stop_block(tp, BUFMGR_MODE, BUFMGR_MODE_ENABLE, silent);
5623         err |= tg3_stop_block(tp, MEMARB_MODE, MEMARB_MODE_ENABLE, silent);
5624
5625         if (tp->hw_status)
5626                 memset(tp->hw_status, 0, TG3_HW_STATUS_SIZE);
5627         if (tp->hw_stats)
5628                 memset(tp->hw_stats, 0, sizeof(struct tg3_hw_stats));
5629
5630         return err;
5631 }
5632
5633 /* tp->lock is held. */
5634 static int tg3_nvram_lock(struct tg3 *tp)
5635 {
5636         if (tp->tg3_flags & TG3_FLAG_NVRAM) {
5637                 int i;
5638
5639                 if (tp->nvram_lock_cnt == 0) {
5640                         tw32(NVRAM_SWARB, SWARB_REQ_SET1);
5641                         for (i = 0; i < 8000; i++) {
5642                                 if (tr32(NVRAM_SWARB) & SWARB_GNT1)
5643                                         break;
5644                                 udelay(20);
5645                         }
5646                         if (i == 8000) {
5647                                 tw32(NVRAM_SWARB, SWARB_REQ_CLR1);
5648                                 return -ENODEV;
5649                         }
5650                 }
5651                 tp->nvram_lock_cnt++;
5652         }
5653         return 0;
5654 }
5655
5656 /* tp->lock is held. */
5657 static void tg3_nvram_unlock(struct tg3 *tp)
5658 {
5659         if (tp->tg3_flags & TG3_FLAG_NVRAM) {
5660                 if (tp->nvram_lock_cnt > 0)
5661                         tp->nvram_lock_cnt--;
5662                 if (tp->nvram_lock_cnt == 0)
5663                         tw32_f(NVRAM_SWARB, SWARB_REQ_CLR1);
5664         }
5665 }
5666
5667 /* tp->lock is held. */
5668 static void tg3_enable_nvram_access(struct tg3 *tp)
5669 {
5670         if ((tp->tg3_flags2 & TG3_FLG2_5750_PLUS) &&
5671             !(tp->tg3_flags2 & TG3_FLG2_PROTECTED_NVRAM)) {
5672                 u32 nvaccess = tr32(NVRAM_ACCESS);
5673
5674                 tw32(NVRAM_ACCESS, nvaccess | ACCESS_ENABLE);
5675         }
5676 }
5677
5678 /* tp->lock is held. */
5679 static void tg3_disable_nvram_access(struct tg3 *tp)
5680 {
5681         if ((tp->tg3_flags2 & TG3_FLG2_5750_PLUS) &&
5682             !(tp->tg3_flags2 & TG3_FLG2_PROTECTED_NVRAM)) {
5683                 u32 nvaccess = tr32(NVRAM_ACCESS);
5684
5685                 tw32(NVRAM_ACCESS, nvaccess & ~ACCESS_ENABLE);
5686         }
5687 }
5688
5689 static void tg3_ape_send_event(struct tg3 *tp, u32 event)
5690 {
5691         int i;
5692         u32 apedata;
5693
5694         apedata = tg3_ape_read32(tp, TG3_APE_SEG_SIG);
5695         if (apedata != APE_SEG_SIG_MAGIC)
5696                 return;
5697
5698         apedata = tg3_ape_read32(tp, TG3_APE_FW_STATUS);
5699         if (!(apedata & APE_FW_STATUS_READY))
5700                 return;
5701
5702         /* Wait for up to 1 millisecond for APE to service previous event. */
5703         for (i = 0; i < 10; i++) {
5704                 if (tg3_ape_lock(tp, TG3_APE_LOCK_MEM))
5705                         return;
5706
5707                 apedata = tg3_ape_read32(tp, TG3_APE_EVENT_STATUS);
5708
5709                 if (!(apedata & APE_EVENT_STATUS_EVENT_PENDING))
5710                         tg3_ape_write32(tp, TG3_APE_EVENT_STATUS,
5711                                         event | APE_EVENT_STATUS_EVENT_PENDING);
5712
5713                 tg3_ape_unlock(tp, TG3_APE_LOCK_MEM);
5714
5715                 if (!(apedata & APE_EVENT_STATUS_EVENT_PENDING))
5716                         break;
5717
5718                 udelay(100);
5719         }
5720
5721         if (!(apedata & APE_EVENT_STATUS_EVENT_PENDING))
5722                 tg3_ape_write32(tp, TG3_APE_EVENT, APE_EVENT_1);
5723 }
5724
5725 static void tg3_ape_driver_state_change(struct tg3 *tp, int kind)
5726 {
5727         u32 event;
5728         u32 apedata;
5729
5730         if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE))
5731                 return;
5732
5733         switch (kind) {
5734                 case RESET_KIND_INIT:
5735                         tg3_ape_write32(tp, TG3_APE_HOST_SEG_SIG,
5736                                         APE_HOST_SEG_SIG_MAGIC);
5737                         tg3_ape_write32(tp, TG3_APE_HOST_SEG_LEN,
5738                                         APE_HOST_SEG_LEN_MAGIC);
5739                         apedata = tg3_ape_read32(tp, TG3_APE_HOST_INIT_COUNT);
5740                         tg3_ape_write32(tp, TG3_APE_HOST_INIT_COUNT, ++apedata);
5741                         tg3_ape_write32(tp, TG3_APE_HOST_DRIVER_ID,
5742                                         APE_HOST_DRIVER_ID_MAGIC);
5743                         tg3_ape_write32(tp, TG3_APE_HOST_BEHAVIOR,
5744                                         APE_HOST_BEHAV_NO_PHYLOCK);
5745
5746                         event = APE_EVENT_STATUS_STATE_START;
5747                         break;
5748                 case RESET_KIND_SHUTDOWN:
5749                         /* With the interface we are currently using,
5750                          * APE does not track driver state.  Wiping
5751                          * out the HOST SEGMENT SIGNATURE forces
5752                          * the APE to assume OS absent status.
5753                          */
5754                         tg3_ape_write32(tp, TG3_APE_HOST_SEG_SIG, 0x0);
5755
5756                         event = APE_EVENT_STATUS_STATE_UNLOAD;
5757                         break;
5758                 case RESET_KIND_SUSPEND:
5759                         event = APE_EVENT_STATUS_STATE_SUSPEND;
5760                         break;
5761                 default:
5762                         return;
5763         }
5764
5765         event |= APE_EVENT_STATUS_DRIVER_EVNT | APE_EVENT_STATUS_STATE_CHNGE;
5766
5767         tg3_ape_send_event(tp, event);
5768 }
5769
5770 /* tp->lock is held. */
5771 static void tg3_write_sig_pre_reset(struct tg3 *tp, int kind)
5772 {
5773         tg3_write_mem(tp, NIC_SRAM_FIRMWARE_MBOX,
5774                       NIC_SRAM_FIRMWARE_MBOX_MAGIC1);
5775
5776         if (tp->tg3_flags2 & TG3_FLG2_ASF_NEW_HANDSHAKE) {
5777                 switch (kind) {
5778                 case RESET_KIND_INIT:
5779                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
5780                                       DRV_STATE_START);
5781                         break;
5782
5783                 case RESET_KIND_SHUTDOWN:
5784                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
5785                                       DRV_STATE_UNLOAD);
5786                         break;
5787
5788                 case RESET_KIND_SUSPEND:
5789                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
5790                                       DRV_STATE_SUSPEND);
5791                         break;
5792
5793                 default:
5794                         break;
5795                 }
5796         }
5797
5798         if (kind == RESET_KIND_INIT ||
5799             kind == RESET_KIND_SUSPEND)
5800                 tg3_ape_driver_state_change(tp, kind);
5801 }
5802
5803 /* tp->lock is held. */
5804 static void tg3_write_sig_post_reset(struct tg3 *tp, int kind)
5805 {
5806         if (tp->tg3_flags2 & TG3_FLG2_ASF_NEW_HANDSHAKE) {
5807                 switch (kind) {
5808                 case RESET_KIND_INIT:
5809                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
5810                                       DRV_STATE_START_DONE);
5811                         break;
5812
5813                 case RESET_KIND_SHUTDOWN:
5814                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
5815                                       DRV_STATE_UNLOAD_DONE);
5816                         break;
5817
5818                 default:
5819                         break;
5820                 }
5821         }
5822
5823         if (kind == RESET_KIND_SHUTDOWN)
5824                 tg3_ape_driver_state_change(tp, kind);
5825 }
5826
5827 /* tp->lock is held. */
5828 static void tg3_write_sig_legacy(struct tg3 *tp, int kind)
5829 {
5830         if (tp->tg3_flags & TG3_FLAG_ENABLE_ASF) {
5831                 switch (kind) {
5832                 case RESET_KIND_INIT:
5833                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
5834                                       DRV_STATE_START);
5835                         break;
5836
5837                 case RESET_KIND_SHUTDOWN:
5838                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
5839                                       DRV_STATE_UNLOAD);
5840                         break;
5841
5842                 case RESET_KIND_SUSPEND:
5843                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
5844                                       DRV_STATE_SUSPEND);
5845                         break;
5846
5847                 default:
5848                         break;
5849                 }
5850         }
5851 }
5852
5853 static int tg3_poll_fw(struct tg3 *tp)
5854 {
5855         int i;
5856         u32 val;
5857
5858         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
5859                 /* Wait up to 20ms for init done. */
5860                 for (i = 0; i < 200; i++) {
5861                         if (tr32(VCPU_STATUS) & VCPU_STATUS_INIT_DONE)
5862                                 return 0;
5863                         udelay(100);
5864                 }
5865                 return -ENODEV;
5866         }
5867
5868         /* Wait for firmware initialization to complete. */
5869         for (i = 0; i < 100000; i++) {
5870                 tg3_read_mem(tp, NIC_SRAM_FIRMWARE_MBOX, &val);
5871                 if (val == ~NIC_SRAM_FIRMWARE_MBOX_MAGIC1)
5872                         break;
5873                 udelay(10);
5874         }
5875
5876         /* Chip might not be fitted with firmware.  Some Sun onboard
5877          * parts are configured like that.  So don't signal the timeout
5878          * of the above loop as an error, but do report the lack of
5879          * running firmware once.
5880          */
5881         if (i >= 100000 &&
5882             !(tp->tg3_flags2 & TG3_FLG2_NO_FWARE_REPORTED)) {
5883                 tp->tg3_flags2 |= TG3_FLG2_NO_FWARE_REPORTED;
5884
5885                 printk(KERN_INFO PFX "%s: No firmware running.\n",
5886                        tp->dev->name);
5887         }
5888
5889         return 0;
5890 }
5891
5892 /* Save PCI command register before chip reset */
5893 static void tg3_save_pci_state(struct tg3 *tp)
5894 {
5895         pci_read_config_word(tp->pdev, PCI_COMMAND, &tp->pci_cmd);
5896 }
5897
5898 /* Restore PCI state after chip reset */
5899 static void tg3_restore_pci_state(struct tg3 *tp)
5900 {
5901         u32 val;
5902
5903         /* Re-enable indirect register accesses. */
5904         pci_write_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL,
5905                                tp->misc_host_ctrl);
5906
5907         /* Set MAX PCI retry to zero. */
5908         val = (PCISTATE_ROM_ENABLE | PCISTATE_ROM_RETRY_ENABLE);
5909         if (tp->pci_chip_rev_id == CHIPREV_ID_5704_A0 &&
5910             (tp->tg3_flags & TG3_FLAG_PCIX_MODE))
5911                 val |= PCISTATE_RETRY_SAME_DMA;
5912         /* Allow reads and writes to the APE register and memory space. */
5913         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
5914                 val |= PCISTATE_ALLOW_APE_CTLSPC_WR |
5915                        PCISTATE_ALLOW_APE_SHMEM_WR;
5916         pci_write_config_dword(tp->pdev, TG3PCI_PCISTATE, val);
5917
5918         pci_write_config_word(tp->pdev, PCI_COMMAND, tp->pci_cmd);
5919
5920         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5785) {
5921                 if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS)
5922                         pcie_set_readrq(tp->pdev, 4096);
5923                 else {
5924                         pci_write_config_byte(tp->pdev, PCI_CACHE_LINE_SIZE,
5925                                               tp->pci_cacheline_sz);
5926                         pci_write_config_byte(tp->pdev, PCI_LATENCY_TIMER,
5927                                               tp->pci_lat_timer);
5928                 }
5929         }
5930
5931         /* Make sure PCI-X relaxed ordering bit is clear. */
5932         if (tp->tg3_flags & TG3_FLAG_PCIX_MODE) {
5933                 u16 pcix_cmd;
5934
5935                 pci_read_config_word(tp->pdev, tp->pcix_cap + PCI_X_CMD,
5936                                      &pcix_cmd);
5937                 pcix_cmd &= ~PCI_X_CMD_ERO;
5938                 pci_write_config_word(tp->pdev, tp->pcix_cap + PCI_X_CMD,
5939                                       pcix_cmd);
5940         }
5941
5942         if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS) {
5943
5944                 /* Chip reset on 5780 will reset MSI enable bit,
5945                  * so need to restore it.
5946                  */
5947                 if (tp->tg3_flags2 & TG3_FLG2_USING_MSI) {
5948                         u16 ctrl;
5949
5950                         pci_read_config_word(tp->pdev,
5951                                              tp->msi_cap + PCI_MSI_FLAGS,
5952                                              &ctrl);
5953                         pci_write_config_word(tp->pdev,
5954                                               tp->msi_cap + PCI_MSI_FLAGS,
5955                                               ctrl | PCI_MSI_FLAGS_ENABLE);
5956                         val = tr32(MSGINT_MODE);
5957                         tw32(MSGINT_MODE, val | MSGINT_MODE_ENABLE);
5958                 }
5959         }
5960 }
5961
5962 static void tg3_stop_fw(struct tg3 *);
5963
5964 /* tp->lock is held. */
5965 static int tg3_chip_reset(struct tg3 *tp)
5966 {
5967         u32 val;
5968         void (*write_op)(struct tg3 *, u32, u32);
5969         int err;
5970
5971         tg3_nvram_lock(tp);
5972
5973         tg3_mdio_stop(tp);
5974
5975         tg3_ape_lock(tp, TG3_APE_LOCK_GRC);
5976
5977         /* No matching tg3_nvram_unlock() after this because
5978          * chip reset below will undo the nvram lock.
5979          */
5980         tp->nvram_lock_cnt = 0;
5981
5982         /* GRC_MISC_CFG core clock reset will clear the memory
5983          * enable bit in PCI register 4 and the MSI enable bit
5984          * on some chips, so we save relevant registers here.
5985          */
5986         tg3_save_pci_state(tp);
5987
5988         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752 ||
5989             (tp->tg3_flags3 & TG3_FLG3_5755_PLUS))
5990                 tw32(GRC_FASTBOOT_PC, 0);
5991
5992         /*
5993          * We must avoid the readl() that normally takes place.
5994          * It locks machines, causes machine checks, and other
5995          * fun things.  So, temporarily disable the 5701
5996          * hardware workaround, while we do the reset.
5997          */
5998         write_op = tp->write32;
5999         if (write_op == tg3_write_flush_reg32)
6000                 tp->write32 = tg3_write32;
6001
6002         /* Prevent the irq handler from reading or writing PCI registers
6003          * during chip reset when the memory enable bit in the PCI command
6004          * register may be cleared.  The chip does not generate interrupt
6005          * at this time, but the irq handler may still be called due to irq
6006          * sharing or irqpoll.
6007          */
6008         tp->tg3_flags |= TG3_FLAG_CHIP_RESETTING;
6009         if (tp->hw_status) {
6010                 tp->hw_status->status = 0;
6011                 tp->hw_status->status_tag = 0;
6012         }
6013         tp->last_tag = 0;
6014         smp_mb();
6015         synchronize_irq(tp->pdev->irq);
6016
6017         /* do the reset */
6018         val = GRC_MISC_CFG_CORECLK_RESET;
6019
6020         if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) {
6021                 if (tr32(0x7e2c) == 0x60) {
6022                         tw32(0x7e2c, 0x20);
6023                 }
6024                 if (tp->pci_chip_rev_id != CHIPREV_ID_5750_A0) {
6025                         tw32(GRC_MISC_CFG, (1 << 29));
6026                         val |= (1 << 29);
6027                 }
6028         }
6029
6030         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
6031                 tw32(VCPU_STATUS, tr32(VCPU_STATUS) | VCPU_STATUS_DRV_RESET);
6032                 tw32(GRC_VCPU_EXT_CTRL,
6033                      tr32(GRC_VCPU_EXT_CTRL) & ~GRC_VCPU_EXT_CTRL_HALT_CPU);
6034         }
6035
6036         if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS)
6037                 val |= GRC_MISC_CFG_KEEP_GPHY_POWER;
6038         tw32(GRC_MISC_CFG, val);
6039
6040         /* restore 5701 hardware bug workaround write method */
6041         tp->write32 = write_op;
6042
6043         /* Unfortunately, we have to delay before the PCI read back.
6044          * Some 575X chips even will not respond to a PCI cfg access
6045          * when the reset command is given to the chip.
6046          *
6047          * How do these hardware designers expect things to work
6048          * properly if the PCI write is posted for a long period
6049          * of time?  It is always necessary to have some method by
6050          * which a register read back can occur to push the write
6051          * out which does the reset.
6052          *
6053          * For most tg3 variants the trick below was working.
6054          * Ho hum...
6055          */
6056         udelay(120);
6057
6058         /* Flush PCI posted writes.  The normal MMIO registers
6059          * are inaccessible at this time so this is the only
6060          * way to make this reliably (actually, this is no longer
6061          * the case, see above).  I tried to use indirect
6062          * register read/write but this upset some 5701 variants.
6063          */
6064         pci_read_config_dword(tp->pdev, PCI_COMMAND, &val);
6065
6066         udelay(120);
6067
6068         if ((tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) && tp->pcie_cap) {
6069                 if (tp->pci_chip_rev_id == CHIPREV_ID_5750_A0) {
6070                         int i;
6071                         u32 cfg_val;
6072
6073                         /* Wait for link training to complete.  */
6074                         for (i = 0; i < 5000; i++)
6075                                 udelay(100);
6076
6077                         pci_read_config_dword(tp->pdev, 0xc4, &cfg_val);
6078                         pci_write_config_dword(tp->pdev, 0xc4,
6079                                                cfg_val | (1 << 15));
6080                 }
6081
6082                 /* Set PCIE max payload size to 128 bytes and
6083                  * clear the "no snoop" and "relaxed ordering" bits.
6084                  */
6085                 pci_write_config_word(tp->pdev,
6086                                       tp->pcie_cap + PCI_EXP_DEVCTL,
6087                                       0);
6088
6089                 pcie_set_readrq(tp->pdev, 4096);
6090
6091                 /* Clear error status */
6092                 pci_write_config_word(tp->pdev,
6093                                       tp->pcie_cap + PCI_EXP_DEVSTA,
6094                                       PCI_EXP_DEVSTA_CED |
6095                                       PCI_EXP_DEVSTA_NFED |
6096                                       PCI_EXP_DEVSTA_FED |
6097                                       PCI_EXP_DEVSTA_URD);
6098         }
6099
6100         tg3_restore_pci_state(tp);
6101
6102         tp->tg3_flags &= ~TG3_FLAG_CHIP_RESETTING;
6103
6104         val = 0;
6105         if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)
6106                 val = tr32(MEMARB_MODE);
6107         tw32(MEMARB_MODE, val | MEMARB_MODE_ENABLE);
6108
6109         if (tp->pci_chip_rev_id == CHIPREV_ID_5750_A3) {
6110                 tg3_stop_fw(tp);
6111                 tw32(0x5000, 0x400);
6112         }
6113
6114         tw32(GRC_MODE, tp->grc_mode);
6115
6116         if (tp->pci_chip_rev_id == CHIPREV_ID_5705_A0) {
6117                 val = tr32(0xc4);
6118
6119                 tw32(0xc4, val | (1 << 15));
6120         }
6121
6122         if ((tp->nic_sram_data_cfg & NIC_SRAM_DATA_CFG_MINI_PCI) != 0 &&
6123             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) {
6124                 tp->pci_clock_ctrl |= CLOCK_CTRL_CLKRUN_OENABLE;
6125                 if (tp->pci_chip_rev_id == CHIPREV_ID_5705_A0)
6126                         tp->pci_clock_ctrl |= CLOCK_CTRL_FORCE_CLKRUN;
6127                 tw32(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl);
6128         }
6129
6130         if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) {
6131                 tp->mac_mode = MAC_MODE_PORT_MODE_TBI;
6132                 tw32_f(MAC_MODE, tp->mac_mode);
6133         } else if (tp->tg3_flags2 & TG3_FLG2_MII_SERDES) {
6134                 tp->mac_mode = MAC_MODE_PORT_MODE_GMII;
6135                 tw32_f(MAC_MODE, tp->mac_mode);
6136         } else if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) {
6137                 tp->mac_mode &= (MAC_MODE_APE_TX_EN | MAC_MODE_APE_RX_EN);
6138                 if (tp->mac_mode & MAC_MODE_APE_TX_EN)
6139                         tp->mac_mode |= MAC_MODE_TDE_ENABLE;
6140                 tw32_f(MAC_MODE, tp->mac_mode);
6141         } else
6142                 tw32_f(MAC_MODE, 0);
6143         udelay(40);
6144
6145         tg3_mdio_start(tp);
6146
6147         tg3_ape_unlock(tp, TG3_APE_LOCK_GRC);
6148
6149         err = tg3_poll_fw(tp);
6150         if (err)
6151                 return err;
6152
6153         if ((tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) &&
6154             tp->pci_chip_rev_id != CHIPREV_ID_5750_A0) {
6155                 val = tr32(0x7c00);
6156
6157                 tw32(0x7c00, val | (1 << 25));
6158         }
6159
6160         /* Reprobe ASF enable state.  */
6161         tp->tg3_flags &= ~TG3_FLAG_ENABLE_ASF;
6162         tp->tg3_flags2 &= ~TG3_FLG2_ASF_NEW_HANDSHAKE;
6163         tg3_read_mem(tp, NIC_SRAM_DATA_SIG, &val);
6164         if (val == NIC_SRAM_DATA_SIG_MAGIC) {
6165                 u32 nic_cfg;
6166
6167                 tg3_read_mem(tp, NIC_SRAM_DATA_CFG, &nic_cfg);
6168                 if (nic_cfg & NIC_SRAM_DATA_CFG_ASF_ENABLE) {
6169                         tp->tg3_flags |= TG3_FLAG_ENABLE_ASF;
6170                         tp->last_event_jiffies = jiffies;
6171                         if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS)
6172                                 tp->tg3_flags2 |= TG3_FLG2_ASF_NEW_HANDSHAKE;
6173                 }
6174         }
6175
6176         return 0;
6177 }
6178
6179 /* tp->lock is held. */
6180 static void tg3_stop_fw(struct tg3 *tp)
6181 {
6182         if ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) &&
6183            !(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)) {
6184                 /* Wait for RX cpu to ACK the previous event. */
6185                 tg3_wait_for_event_ack(tp);
6186
6187                 tg3_write_mem(tp, NIC_SRAM_FW_CMD_MBOX, FWCMD_NICDRV_PAUSE_FW);
6188
6189                 tg3_generate_fw_event(tp);
6190
6191                 /* Wait for RX cpu to ACK this event. */
6192                 tg3_wait_for_event_ack(tp);
6193         }
6194 }
6195
6196 /* tp->lock is held. */
6197 static int tg3_halt(struct tg3 *tp, int kind, int silent)
6198 {
6199         int err;
6200
6201         tg3_stop_fw(tp);
6202
6203         tg3_write_sig_pre_reset(tp, kind);
6204
6205         tg3_abort_hw(tp, silent);
6206         err = tg3_chip_reset(tp);
6207
6208         tg3_write_sig_legacy(tp, kind);
6209         tg3_write_sig_post_reset(tp, kind);
6210
6211         if (err)
6212                 return err;
6213
6214         return 0;
6215 }
6216
6217 #define RX_CPU_SCRATCH_BASE     0x30000
6218 #define RX_CPU_SCRATCH_SIZE     0x04000
6219 #define TX_CPU_SCRATCH_BASE     0x34000
6220 #define TX_CPU_SCRATCH_SIZE     0x04000
6221
6222 /* tp->lock is held. */
6223 static int tg3_halt_cpu(struct tg3 *tp, u32 offset)
6224 {
6225         int i;
6226
6227         BUG_ON(offset == TX_CPU_BASE &&
6228             (tp->tg3_flags2 & TG3_FLG2_5705_PLUS));
6229
6230         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
6231                 u32 val = tr32(GRC_VCPU_EXT_CTRL);
6232
6233                 tw32(GRC_VCPU_EXT_CTRL, val | GRC_VCPU_EXT_CTRL_HALT_CPU);
6234                 return 0;
6235         }
6236         if (offset == RX_CPU_BASE) {
6237                 for (i = 0; i < 10000; i++) {
6238                         tw32(offset + CPU_STATE, 0xffffffff);
6239                         tw32(offset + CPU_MODE,  CPU_MODE_HALT);
6240                         if (tr32(offset + CPU_MODE) & CPU_MODE_HALT)
6241                                 break;
6242                 }
6243
6244                 tw32(offset + CPU_STATE, 0xffffffff);
6245                 tw32_f(offset + CPU_MODE,  CPU_MODE_HALT);
6246                 udelay(10);
6247         } else {
6248                 for (i = 0; i < 10000; i++) {
6249                         tw32(offset + CPU_STATE, 0xffffffff);
6250                         tw32(offset + CPU_MODE,  CPU_MODE_HALT);
6251                         if (tr32(offset + CPU_MODE) & CPU_MODE_HALT)
6252                                 break;
6253                 }
6254         }
6255
6256         if (i >= 10000) {
6257                 printk(KERN_ERR PFX "tg3_reset_cpu timed out for %s, "
6258                        "and %s CPU\n",
6259                        tp->dev->name,
6260                        (offset == RX_CPU_BASE ? "RX" : "TX"));
6261                 return -ENODEV;
6262         }
6263
6264         /* Clear firmware's nvram arbitration. */
6265         if (tp->tg3_flags & TG3_FLAG_NVRAM)
6266                 tw32(NVRAM_SWARB, SWARB_REQ_CLR0);
6267         return 0;
6268 }
6269
6270 struct fw_info {
6271         unsigned int fw_base;
6272         unsigned int fw_len;
6273         const __be32 *fw_data;
6274 };
6275
6276 /* tp->lock is held. */
6277 static int tg3_load_firmware_cpu(struct tg3 *tp, u32 cpu_base, u32 cpu_scratch_base,
6278                                  int cpu_scratch_size, struct fw_info *info)
6279 {
6280         int err, lock_err, i;
6281         void (*write_op)(struct tg3 *, u32, u32);
6282
6283         if (cpu_base == TX_CPU_BASE &&
6284             (tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
6285                 printk(KERN_ERR PFX "tg3_load_firmware_cpu: Trying to load "
6286                        "TX cpu firmware on %s which is 5705.\n",
6287                        tp->dev->name);
6288                 return -EINVAL;
6289         }
6290
6291         if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS)
6292                 write_op = tg3_write_mem;
6293         else
6294                 write_op = tg3_write_indirect_reg32;
6295
6296         /* It is possible that bootcode is still loading at this point.
6297          * Get the nvram lock first before halting the cpu.
6298          */
6299         lock_err = tg3_nvram_lock(tp);
6300         err = tg3_halt_cpu(tp, cpu_base);
6301         if (!lock_err)
6302                 tg3_nvram_unlock(tp);
6303         if (err)
6304                 goto out;
6305
6306         for (i = 0; i < cpu_scratch_size; i += sizeof(u32))
6307                 write_op(tp, cpu_scratch_base + i, 0);
6308         tw32(cpu_base + CPU_STATE, 0xffffffff);
6309         tw32(cpu_base + CPU_MODE, tr32(cpu_base+CPU_MODE)|CPU_MODE_HALT);
6310         for (i = 0; i < (info->fw_len / sizeof(u32)); i++)
6311                 write_op(tp, (cpu_scratch_base +
6312                               (info->fw_base & 0xffff) +
6313                               (i * sizeof(u32))),
6314                               be32_to_cpu(info->fw_data[i]));
6315
6316         err = 0;
6317
6318 out:
6319         return err;
6320 }
6321
6322 /* tp->lock is held. */
6323 static int tg3_load_5701_a0_firmware_fix(struct tg3 *tp)
6324 {
6325         struct fw_info info;
6326         const __be32 *fw_data;
6327         int err, i;
6328
6329         fw_data = (void *)tp->fw->data;
6330
6331         /* Firmware blob starts with version numbers, followed by
6332            start address and length. We are setting complete length.
6333            length = end_address_of_bss - start_address_of_text.
6334            Remainder is the blob to be loaded contiguously
6335            from start address. */
6336
6337         info.fw_base = be32_to_cpu(fw_data[1]);
6338         info.fw_len = tp->fw->size - 12;
6339         info.fw_data = &fw_data[3];
6340
6341         err = tg3_load_firmware_cpu(tp, RX_CPU_BASE,
6342                                     RX_CPU_SCRATCH_BASE, RX_CPU_SCRATCH_SIZE,
6343                                     &info);
6344         if (err)
6345                 return err;
6346
6347         err = tg3_load_firmware_cpu(tp, TX_CPU_BASE,
6348                                     TX_CPU_SCRATCH_BASE, TX_CPU_SCRATCH_SIZE,
6349                                     &info);
6350         if (err)
6351                 return err;
6352
6353         /* Now startup only the RX cpu. */
6354         tw32(RX_CPU_BASE + CPU_STATE, 0xffffffff);
6355         tw32_f(RX_CPU_BASE + CPU_PC, info.fw_base);
6356
6357         for (i = 0; i < 5; i++) {
6358                 if (tr32(RX_CPU_BASE + CPU_PC) == info.fw_base)
6359                         break;
6360                 tw32(RX_CPU_BASE + CPU_STATE, 0xffffffff);
6361                 tw32(RX_CPU_BASE + CPU_MODE,  CPU_MODE_HALT);
6362                 tw32_f(RX_CPU_BASE + CPU_PC, info.fw_base);
6363                 udelay(1000);
6364         }
6365         if (i >= 5) {
6366                 printk(KERN_ERR PFX "tg3_load_firmware fails for %s "
6367                        "to set RX CPU PC, is %08x should be %08x\n",
6368                        tp->dev->name, tr32(RX_CPU_BASE + CPU_PC),
6369                        info.fw_base);
6370                 return -ENODEV;
6371         }
6372         tw32(RX_CPU_BASE + CPU_STATE, 0xffffffff);
6373         tw32_f(RX_CPU_BASE + CPU_MODE,  0x00000000);
6374
6375         return 0;
6376 }
6377
6378 /* 5705 needs a special version of the TSO firmware.  */
6379
6380 /* tp->lock is held. */
6381 static int tg3_load_tso_firmware(struct tg3 *tp)
6382 {
6383         struct fw_info info;
6384         const __be32 *fw_data;
6385         unsigned long cpu_base, cpu_scratch_base, cpu_scratch_size;
6386         int err, i;
6387
6388         if (tp->tg3_flags2 & TG3_FLG2_HW_TSO)
6389                 return 0;
6390
6391         fw_data = (void *)tp->fw->data;
6392
6393         /* Firmware blob starts with version numbers, followed by
6394            start address and length. We are setting complete length.
6395            length = end_address_of_bss - start_address_of_text.
6396            Remainder is the blob to be loaded contiguously
6397            from start address. */
6398
6399         info.fw_base = be32_to_cpu(fw_data[1]);
6400         cpu_scratch_size = tp->fw_len;
6401         info.fw_len = tp->fw->size - 12;
6402         info.fw_data = &fw_data[3];
6403
6404         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) {
6405                 cpu_base = RX_CPU_BASE;
6406                 cpu_scratch_base = NIC_SRAM_MBUF_POOL_BASE5705;
6407         } else {
6408                 cpu_base = TX_CPU_BASE;
6409                 cpu_scratch_base = TX_CPU_SCRATCH_BASE;
6410                 cpu_scratch_size = TX_CPU_SCRATCH_SIZE;
6411         }
6412
6413         err = tg3_load_firmware_cpu(tp, cpu_base,
6414                                     cpu_scratch_base, cpu_scratch_size,
6415                                     &info);
6416         if (err)
6417                 return err;
6418
6419         /* Now startup the cpu. */
6420         tw32(cpu_base + CPU_STATE, 0xffffffff);
6421         tw32_f(cpu_base + CPU_PC, info.fw_base);
6422
6423         for (i = 0; i < 5; i++) {
6424                 if (tr32(cpu_base + CPU_PC) == info.fw_base)
6425                         break;
6426                 tw32(cpu_base + CPU_STATE, 0xffffffff);
6427                 tw32(cpu_base + CPU_MODE,  CPU_MODE_HALT);
6428                 tw32_f(cpu_base + CPU_PC, info.fw_base);
6429                 udelay(1000);
6430         }
6431         if (i >= 5) {
6432                 printk(KERN_ERR PFX "tg3_load_tso_firmware fails for %s "
6433                        "to set CPU PC, is %08x should be %08x\n",
6434                        tp->dev->name, tr32(cpu_base + CPU_PC),
6435                        info.fw_base);
6436                 return -ENODEV;
6437         }
6438         tw32(cpu_base + CPU_STATE, 0xffffffff);
6439         tw32_f(cpu_base + CPU_MODE,  0x00000000);
6440         return 0;
6441 }
6442
6443
6444 static int tg3_set_mac_addr(struct net_device *dev, void *p)
6445 {
6446         struct tg3 *tp = netdev_priv(dev);
6447         struct sockaddr *addr = p;
6448         int err = 0, skip_mac_1 = 0;
6449
6450         if (!is_valid_ether_addr(addr->sa_data))
6451                 return -EINVAL;
6452
6453         memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
6454
6455         if (!netif_running(dev))
6456                 return 0;
6457
6458         if (tp->tg3_flags & TG3_FLAG_ENABLE_ASF) {
6459                 u32 addr0_high, addr0_low, addr1_high, addr1_low;
6460
6461                 addr0_high = tr32(MAC_ADDR_0_HIGH);
6462                 addr0_low = tr32(MAC_ADDR_0_LOW);
6463                 addr1_high = tr32(MAC_ADDR_1_HIGH);
6464                 addr1_low = tr32(MAC_ADDR_1_LOW);
6465
6466                 /* Skip MAC addr 1 if ASF is using it. */
6467                 if ((addr0_high != addr1_high || addr0_low != addr1_low) &&
6468                     !(addr1_high == 0 && addr1_low == 0))
6469                         skip_mac_1 = 1;
6470         }
6471         spin_lock_bh(&tp->lock);
6472         __tg3_set_mac_addr(tp, skip_mac_1);
6473         spin_unlock_bh(&tp->lock);
6474
6475         return err;
6476 }
6477
6478 /* tp->lock is held. */
6479 static void tg3_set_bdinfo(struct tg3 *tp, u32 bdinfo_addr,
6480                            dma_addr_t mapping, u32 maxlen_flags,
6481                            u32 nic_addr)
6482 {
6483         tg3_write_mem(tp,
6484                       (bdinfo_addr + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_HIGH),
6485                       ((u64) mapping >> 32));
6486         tg3_write_mem(tp,
6487                       (bdinfo_addr + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_LOW),
6488                       ((u64) mapping & 0xffffffff));
6489         tg3_write_mem(tp,
6490                       (bdinfo_addr + TG3_BDINFO_MAXLEN_FLAGS),
6491                        maxlen_flags);
6492
6493         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
6494                 tg3_write_mem(tp,
6495                               (bdinfo_addr + TG3_BDINFO_NIC_ADDR),
6496                               nic_addr);
6497 }
6498
6499 static void __tg3_set_rx_mode(struct net_device *);
6500 static void __tg3_set_coalesce(struct tg3 *tp, struct ethtool_coalesce *ec)
6501 {
6502         tw32(HOSTCC_RXCOL_TICKS, ec->rx_coalesce_usecs);
6503         tw32(HOSTCC_TXCOL_TICKS, ec->tx_coalesce_usecs);
6504         tw32(HOSTCC_RXMAX_FRAMES, ec->rx_max_coalesced_frames);
6505         tw32(HOSTCC_TXMAX_FRAMES, ec->tx_max_coalesced_frames);
6506         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
6507                 tw32(HOSTCC_RXCOAL_TICK_INT, ec->rx_coalesce_usecs_irq);
6508                 tw32(HOSTCC_TXCOAL_TICK_INT, ec->tx_coalesce_usecs_irq);
6509         }
6510         tw32(HOSTCC_RXCOAL_MAXF_INT, ec->rx_max_coalesced_frames_irq);
6511         tw32(HOSTCC_TXCOAL_MAXF_INT, ec->tx_max_coalesced_frames_irq);
6512         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
6513                 u32 val = ec->stats_block_coalesce_usecs;
6514
6515                 if (!netif_carrier_ok(tp->dev))
6516                         val = 0;
6517
6518                 tw32(HOSTCC_STAT_COAL_TICKS, val);
6519         }
6520 }
6521
6522 /* tp->lock is held. */
6523 static int tg3_reset_hw(struct tg3 *tp, int reset_phy)
6524 {
6525         u32 val, rdmac_mode;
6526         int i, err, limit;
6527
6528         tg3_disable_ints(tp);
6529
6530         tg3_stop_fw(tp);
6531
6532         tg3_write_sig_pre_reset(tp, RESET_KIND_INIT);
6533
6534         if (tp->tg3_flags & TG3_FLAG_INIT_COMPLETE) {
6535                 tg3_abort_hw(tp, 1);
6536         }
6537
6538         if (reset_phy &&
6539             !(tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB))
6540                 tg3_phy_reset(tp);
6541
6542         err = tg3_chip_reset(tp);
6543         if (err)
6544                 return err;
6545
6546         tg3_write_sig_legacy(tp, RESET_KIND_INIT);
6547
6548         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX) {
6549                 val = tr32(TG3_CPMU_CTRL);
6550                 val &= ~(CPMU_CTRL_LINK_AWARE_MODE | CPMU_CTRL_LINK_IDLE_MODE);
6551                 tw32(TG3_CPMU_CTRL, val);
6552
6553                 val = tr32(TG3_CPMU_LSPD_10MB_CLK);
6554                 val &= ~CPMU_LSPD_10MB_MACCLK_MASK;
6555                 val |= CPMU_LSPD_10MB_MACCLK_6_25;
6556                 tw32(TG3_CPMU_LSPD_10MB_CLK, val);
6557
6558                 val = tr32(TG3_CPMU_LNK_AWARE_PWRMD);
6559                 val &= ~CPMU_LNK_AWARE_MACCLK_MASK;
6560                 val |= CPMU_LNK_AWARE_MACCLK_6_25;
6561                 tw32(TG3_CPMU_LNK_AWARE_PWRMD, val);
6562
6563                 val = tr32(TG3_CPMU_HST_ACC);
6564                 val &= ~CPMU_HST_ACC_MACCLK_MASK;
6565                 val |= CPMU_HST_ACC_MACCLK_6_25;
6566                 tw32(TG3_CPMU_HST_ACC, val);
6567         }
6568
6569         /* This works around an issue with Athlon chipsets on
6570          * B3 tigon3 silicon.  This bit has no effect on any
6571          * other revision.  But do not set this on PCI Express
6572          * chips and don't even touch the clocks if the CPMU is present.
6573          */
6574         if (!(tp->tg3_flags & TG3_FLAG_CPMU_PRESENT)) {
6575                 if (!(tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS))
6576                         tp->pci_clock_ctrl |= CLOCK_CTRL_DELAY_PCI_GRANT;
6577                 tw32_f(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl);
6578         }
6579
6580         if (tp->pci_chip_rev_id == CHIPREV_ID_5704_A0 &&
6581             (tp->tg3_flags & TG3_FLAG_PCIX_MODE)) {
6582                 val = tr32(TG3PCI_PCISTATE);
6583                 val |= PCISTATE_RETRY_SAME_DMA;
6584                 tw32(TG3PCI_PCISTATE, val);
6585         }
6586
6587         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) {
6588                 /* Allow reads and writes to the
6589                  * APE register and memory space.
6590                  */
6591                 val = tr32(TG3PCI_PCISTATE);
6592                 val |= PCISTATE_ALLOW_APE_CTLSPC_WR |
6593                        PCISTATE_ALLOW_APE_SHMEM_WR;
6594                 tw32(TG3PCI_PCISTATE, val);
6595         }
6596
6597         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5704_BX) {
6598                 /* Enable some hw fixes.  */
6599                 val = tr32(TG3PCI_MSI_DATA);
6600                 val |= (1 << 26) | (1 << 28) | (1 << 29);
6601                 tw32(TG3PCI_MSI_DATA, val);
6602         }
6603
6604         /* Descriptor ring init may make accesses to the
6605          * NIC SRAM area to setup the TX descriptors, so we
6606          * can only do this after the hardware has been
6607          * successfully reset.
6608          */
6609         err = tg3_init_rings(tp);
6610         if (err)
6611                 return err;
6612
6613         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5784 &&
6614             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5761) {
6615                 /* This value is determined during the probe time DMA
6616                  * engine test, tg3_test_dma.
6617                  */
6618                 tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
6619         }
6620
6621         tp->grc_mode &= ~(GRC_MODE_HOST_SENDBDS |
6622                           GRC_MODE_4X_NIC_SEND_RINGS |
6623                           GRC_MODE_NO_TX_PHDR_CSUM |
6624                           GRC_MODE_NO_RX_PHDR_CSUM);
6625         tp->grc_mode |= GRC_MODE_HOST_SENDBDS;
6626
6627         /* Pseudo-header checksum is done by hardware logic and not
6628          * the offload processers, so make the chip do the pseudo-
6629          * header checksums on receive.  For transmit it is more
6630          * convenient to do the pseudo-header checksum in software
6631          * as Linux does that on transmit for us in all cases.
6632          */
6633         tp->grc_mode |= GRC_MODE_NO_TX_PHDR_CSUM;
6634
6635         tw32(GRC_MODE,
6636              tp->grc_mode |
6637              (GRC_MODE_IRQ_ON_MAC_ATTN | GRC_MODE_HOST_STACKUP));
6638
6639         /* Setup the timer prescalar register.  Clock is always 66Mhz. */
6640         val = tr32(GRC_MISC_CFG);
6641         val &= ~0xff;
6642         val |= (65 << GRC_MISC_CFG_PRESCALAR_SHIFT);
6643         tw32(GRC_MISC_CFG, val);
6644
6645         /* Initialize MBUF/DESC pool. */
6646         if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS) {
6647                 /* Do nothing.  */
6648         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5705) {
6649                 tw32(BUFMGR_MB_POOL_ADDR, NIC_SRAM_MBUF_POOL_BASE);
6650                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704)
6651                         tw32(BUFMGR_MB_POOL_SIZE, NIC_SRAM_MBUF_POOL_SIZE64);
6652                 else
6653                         tw32(BUFMGR_MB_POOL_SIZE, NIC_SRAM_MBUF_POOL_SIZE96);
6654                 tw32(BUFMGR_DMA_DESC_POOL_ADDR, NIC_SRAM_DMA_DESC_POOL_BASE);
6655                 tw32(BUFMGR_DMA_DESC_POOL_SIZE, NIC_SRAM_DMA_DESC_POOL_SIZE);
6656         }
6657         else if (tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE) {
6658                 int fw_len;
6659
6660                 fw_len = tp->fw_len;
6661                 fw_len = (fw_len + (0x80 - 1)) & ~(0x80 - 1);
6662                 tw32(BUFMGR_MB_POOL_ADDR,
6663                      NIC_SRAM_MBUF_POOL_BASE5705 + fw_len);
6664                 tw32(BUFMGR_MB_POOL_SIZE,
6665                      NIC_SRAM_MBUF_POOL_SIZE5705 - fw_len - 0xa00);
6666         }
6667
6668         if (tp->dev->mtu <= ETH_DATA_LEN) {
6669                 tw32(BUFMGR_MB_RDMA_LOW_WATER,
6670                      tp->bufmgr_config.mbuf_read_dma_low_water);
6671                 tw32(BUFMGR_MB_MACRX_LOW_WATER,
6672                      tp->bufmgr_config.mbuf_mac_rx_low_water);
6673                 tw32(BUFMGR_MB_HIGH_WATER,
6674                      tp->bufmgr_config.mbuf_high_water);
6675         } else {
6676                 tw32(BUFMGR_MB_RDMA_LOW_WATER,
6677                      tp->bufmgr_config.mbuf_read_dma_low_water_jumbo);
6678                 tw32(BUFMGR_MB_MACRX_LOW_WATER,
6679                      tp->bufmgr_config.mbuf_mac_rx_low_water_jumbo);
6680                 tw32(BUFMGR_MB_HIGH_WATER,
6681                      tp->bufmgr_config.mbuf_high_water_jumbo);
6682         }
6683         tw32(BUFMGR_DMA_LOW_WATER,
6684              tp->bufmgr_config.dma_low_water);
6685         tw32(BUFMGR_DMA_HIGH_WATER,
6686              tp->bufmgr_config.dma_high_water);
6687
6688         tw32(BUFMGR_MODE, BUFMGR_MODE_ENABLE | BUFMGR_MODE_ATTN_ENABLE);
6689         for (i = 0; i < 2000; i++) {
6690                 if (tr32(BUFMGR_MODE) & BUFMGR_MODE_ENABLE)
6691                         break;
6692                 udelay(10);
6693         }
6694         if (i >= 2000) {
6695                 printk(KERN_ERR PFX "tg3_reset_hw cannot enable BUFMGR for %s.\n",
6696                        tp->dev->name);
6697                 return -ENODEV;
6698         }
6699
6700         /* Setup replenish threshold. */
6701         val = tp->rx_pending / 8;
6702         if (val == 0)
6703                 val = 1;
6704         else if (val > tp->rx_std_max_post)
6705                 val = tp->rx_std_max_post;
6706         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
6707                 if (tp->pci_chip_rev_id == CHIPREV_ID_5906_A1)
6708                         tw32(ISO_PKT_TX, (tr32(ISO_PKT_TX) & ~0x3) | 0x2);
6709
6710                 if (val > (TG3_RX_INTERNAL_RING_SZ_5906 / 2))
6711                         val = TG3_RX_INTERNAL_RING_SZ_5906 / 2;
6712         }
6713
6714         tw32(RCVBDI_STD_THRESH, val);
6715
6716         /* Initialize TG3_BDINFO's at:
6717          *  RCVDBDI_STD_BD:     standard eth size rx ring
6718          *  RCVDBDI_JUMBO_BD:   jumbo frame rx ring
6719          *  RCVDBDI_MINI_BD:    small frame rx ring (??? does not work)
6720          *
6721          * like so:
6722          *  TG3_BDINFO_HOST_ADDR:       high/low parts of DMA address of ring
6723          *  TG3_BDINFO_MAXLEN_FLAGS:    (rx max buffer size << 16) |
6724          *                              ring attribute flags
6725          *  TG3_BDINFO_NIC_ADDR:        location of descriptors in nic SRAM
6726          *
6727          * Standard receive ring @ NIC_SRAM_RX_BUFFER_DESC, 512 entries.
6728          * Jumbo receive ring @ NIC_SRAM_RX_JUMBO_BUFFER_DESC, 256 entries.
6729          *
6730          * The size of each ring is fixed in the firmware, but the location is
6731          * configurable.
6732          */
6733         tw32(RCVDBDI_STD_BD + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_HIGH,
6734              ((u64) tp->rx_std_mapping >> 32));
6735         tw32(RCVDBDI_STD_BD + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_LOW,
6736              ((u64) tp->rx_std_mapping & 0xffffffff));
6737         tw32(RCVDBDI_STD_BD + TG3_BDINFO_NIC_ADDR,
6738              NIC_SRAM_RX_BUFFER_DESC);
6739
6740         /* Don't even try to program the JUMBO/MINI buffer descriptor
6741          * configs on 5705.
6742          */
6743         if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
6744                 tw32(RCVDBDI_STD_BD + TG3_BDINFO_MAXLEN_FLAGS,
6745                      RX_STD_MAX_SIZE_5705 << BDINFO_FLAGS_MAXLEN_SHIFT);
6746         } else {
6747                 tw32(RCVDBDI_STD_BD + TG3_BDINFO_MAXLEN_FLAGS,
6748                      RX_STD_MAX_SIZE << BDINFO_FLAGS_MAXLEN_SHIFT);
6749
6750                 tw32(RCVDBDI_MINI_BD + TG3_BDINFO_MAXLEN_FLAGS,
6751                      BDINFO_FLAGS_DISABLED);
6752
6753                 /* Setup replenish threshold. */
6754                 tw32(RCVBDI_JUMBO_THRESH, tp->rx_jumbo_pending / 8);
6755
6756                 if (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE) {
6757                         tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_HIGH,
6758                              ((u64) tp->rx_jumbo_mapping >> 32));
6759                         tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_LOW,
6760                              ((u64) tp->rx_jumbo_mapping & 0xffffffff));
6761                         tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_MAXLEN_FLAGS,
6762                              RX_JUMBO_MAX_SIZE << BDINFO_FLAGS_MAXLEN_SHIFT);
6763                         tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_NIC_ADDR,
6764                              NIC_SRAM_RX_JUMBO_BUFFER_DESC);
6765                 } else {
6766                         tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_MAXLEN_FLAGS,
6767                              BDINFO_FLAGS_DISABLED);
6768                 }
6769
6770         }
6771
6772         /* There is only one send ring on 5705/5750, no need to explicitly
6773          * disable the others.
6774          */
6775         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
6776                 /* Clear out send RCB ring in SRAM. */
6777                 for (i = NIC_SRAM_SEND_RCB; i < NIC_SRAM_RCV_RET_RCB; i += TG3_BDINFO_SIZE)
6778                         tg3_write_mem(tp, i + TG3_BDINFO_MAXLEN_FLAGS,
6779                                       BDINFO_FLAGS_DISABLED);
6780         }
6781
6782         tp->tx_prod = 0;
6783         tp->tx_cons = 0;
6784         tw32_mailbox(MAILBOX_SNDHOST_PROD_IDX_0 + TG3_64BIT_REG_LOW, 0);
6785         tw32_tx_mbox(MAILBOX_SNDNIC_PROD_IDX_0 + TG3_64BIT_REG_LOW, 0);
6786
6787         tg3_set_bdinfo(tp, NIC_SRAM_SEND_RCB,
6788                        tp->tx_desc_mapping,
6789                        (TG3_TX_RING_SIZE <<
6790                         BDINFO_FLAGS_MAXLEN_SHIFT),
6791                        NIC_SRAM_TX_BUFFER_DESC);
6792
6793         /* There is only one receive return ring on 5705/5750, no need
6794          * to explicitly disable the others.
6795          */
6796         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
6797                 for (i = NIC_SRAM_RCV_RET_RCB; i < NIC_SRAM_STATS_BLK;
6798                      i += TG3_BDINFO_SIZE) {
6799                         tg3_write_mem(tp, i + TG3_BDINFO_MAXLEN_FLAGS,
6800                                       BDINFO_FLAGS_DISABLED);
6801                 }
6802         }
6803
6804         tp->rx_rcb_ptr = 0;
6805         tw32_rx_mbox(MAILBOX_RCVRET_CON_IDX_0 + TG3_64BIT_REG_LOW, 0);
6806
6807         tg3_set_bdinfo(tp, NIC_SRAM_RCV_RET_RCB,
6808                        tp->rx_rcb_mapping,
6809                        (TG3_RX_RCB_RING_SIZE(tp) <<
6810                         BDINFO_FLAGS_MAXLEN_SHIFT),
6811                        0);
6812
6813         tp->rx_std_ptr = tp->rx_pending;
6814         tw32_rx_mbox(MAILBOX_RCV_STD_PROD_IDX + TG3_64BIT_REG_LOW,
6815                      tp->rx_std_ptr);
6816
6817         tp->rx_jumbo_ptr = (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE) ?
6818                                                 tp->rx_jumbo_pending : 0;
6819         tw32_rx_mbox(MAILBOX_RCV_JUMBO_PROD_IDX + TG3_64BIT_REG_LOW,
6820                      tp->rx_jumbo_ptr);
6821
6822         /* Initialize MAC address and backoff seed. */
6823         __tg3_set_mac_addr(tp, 0);
6824
6825         /* MTU + ethernet header + FCS + optional VLAN tag */
6826         tw32(MAC_RX_MTU_SIZE, tp->dev->mtu + ETH_HLEN + 8);
6827
6828         /* The slot time is changed by tg3_setup_phy if we
6829          * run at gigabit with half duplex.
6830          */
6831         tw32(MAC_TX_LENGTHS,
6832              (2 << TX_LENGTHS_IPG_CRS_SHIFT) |
6833              (6 << TX_LENGTHS_IPG_SHIFT) |
6834              (32 << TX_LENGTHS_SLOT_TIME_SHIFT));
6835
6836         /* Receive rules. */
6837         tw32(MAC_RCV_RULE_CFG, RCV_RULE_CFG_DEFAULT_CLASS);
6838         tw32(RCVLPC_CONFIG, 0x0181);
6839
6840         /* Calculate RDMAC_MODE setting early, we need it to determine
6841          * the RCVLPC_STATE_ENABLE mask.
6842          */
6843         rdmac_mode = (RDMAC_MODE_ENABLE | RDMAC_MODE_TGTABORT_ENAB |
6844                       RDMAC_MODE_MSTABORT_ENAB | RDMAC_MODE_PARITYERR_ENAB |
6845                       RDMAC_MODE_ADDROFLOW_ENAB | RDMAC_MODE_FIFOOFLOW_ENAB |
6846                       RDMAC_MODE_FIFOURUN_ENAB | RDMAC_MODE_FIFOOREAD_ENAB |
6847                       RDMAC_MODE_LNGREAD_ENAB);
6848
6849         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
6850             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
6851             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
6852                 rdmac_mode |= RDMAC_MODE_BD_SBD_CRPT_ENAB |
6853                               RDMAC_MODE_MBUF_RBD_CRPT_ENAB |
6854                               RDMAC_MODE_MBUF_SBD_CRPT_ENAB;
6855
6856         /* If statement applies to 5705 and 5750 PCI devices only */
6857         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705 &&
6858              tp->pci_chip_rev_id != CHIPREV_ID_5705_A0) ||
6859             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750)) {
6860                 if (tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE &&
6861                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) {
6862                         rdmac_mode |= RDMAC_MODE_FIFO_SIZE_128;
6863                 } else if (!(tr32(TG3PCI_PCISTATE) & PCISTATE_BUS_SPEED_HIGH) &&
6864                            !(tp->tg3_flags2 & TG3_FLG2_IS_5788)) {
6865                         rdmac_mode |= RDMAC_MODE_FIFO_LONG_BURST;
6866                 }
6867         }
6868
6869         if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS)
6870                 rdmac_mode |= RDMAC_MODE_FIFO_LONG_BURST;
6871
6872         if (tp->tg3_flags2 & TG3_FLG2_HW_TSO)
6873                 rdmac_mode |= RDMAC_MODE_IPV4_LSO_EN;
6874
6875         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
6876             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
6877                 rdmac_mode |= RDMAC_MODE_IPV6_LSO_EN;
6878
6879         /* Receive/send statistics. */
6880         if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS) {
6881                 val = tr32(RCVLPC_STATS_ENABLE);
6882                 val &= ~RCVLPC_STATSENAB_DACK_FIX;
6883                 tw32(RCVLPC_STATS_ENABLE, val);
6884         } else if ((rdmac_mode & RDMAC_MODE_FIFO_SIZE_128) &&
6885                    (tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE)) {
6886                 val = tr32(RCVLPC_STATS_ENABLE);
6887                 val &= ~RCVLPC_STATSENAB_LNGBRST_RFIX;
6888                 tw32(RCVLPC_STATS_ENABLE, val);
6889         } else {
6890                 tw32(RCVLPC_STATS_ENABLE, 0xffffff);
6891         }
6892         tw32(RCVLPC_STATSCTRL, RCVLPC_STATSCTRL_ENABLE);
6893         tw32(SNDDATAI_STATSENAB, 0xffffff);
6894         tw32(SNDDATAI_STATSCTRL,
6895              (SNDDATAI_SCTRL_ENABLE |
6896               SNDDATAI_SCTRL_FASTUPD));
6897
6898         /* Setup host coalescing engine. */
6899         tw32(HOSTCC_MODE, 0);
6900         for (i = 0; i < 2000; i++) {
6901                 if (!(tr32(HOSTCC_MODE) & HOSTCC_MODE_ENABLE))
6902                         break;
6903                 udelay(10);
6904         }
6905
6906         __tg3_set_coalesce(tp, &tp->coal);
6907
6908         /* set status block DMA address */
6909         tw32(HOSTCC_STATUS_BLK_HOST_ADDR + TG3_64BIT_REG_HIGH,
6910              ((u64) tp->status_mapping >> 32));
6911         tw32(HOSTCC_STATUS_BLK_HOST_ADDR + TG3_64BIT_REG_LOW,
6912              ((u64) tp->status_mapping & 0xffffffff));
6913
6914         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
6915                 /* Status/statistics block address.  See tg3_timer,
6916                  * the tg3_periodic_fetch_stats call there, and
6917                  * tg3_get_stats to see how this works for 5705/5750 chips.
6918                  */
6919                 tw32(HOSTCC_STATS_BLK_HOST_ADDR + TG3_64BIT_REG_HIGH,
6920                      ((u64) tp->stats_mapping >> 32));
6921                 tw32(HOSTCC_STATS_BLK_HOST_ADDR + TG3_64BIT_REG_LOW,
6922                      ((u64) tp->stats_mapping & 0xffffffff));
6923                 tw32(HOSTCC_STATS_BLK_NIC_ADDR, NIC_SRAM_STATS_BLK);
6924                 tw32(HOSTCC_STATUS_BLK_NIC_ADDR, NIC_SRAM_STATUS_BLK);
6925         }
6926
6927         tw32(HOSTCC_MODE, HOSTCC_MODE_ENABLE | tp->coalesce_mode);
6928
6929         tw32(RCVCC_MODE, RCVCC_MODE_ENABLE | RCVCC_MODE_ATTN_ENABLE);
6930         tw32(RCVLPC_MODE, RCVLPC_MODE_ENABLE);
6931         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
6932                 tw32(RCVLSC_MODE, RCVLSC_MODE_ENABLE | RCVLSC_MODE_ATTN_ENABLE);
6933
6934         /* Clear statistics/status block in chip, and status block in ram. */
6935         for (i = NIC_SRAM_STATS_BLK;
6936              i < NIC_SRAM_STATUS_BLK + TG3_HW_STATUS_SIZE;
6937              i += sizeof(u32)) {
6938                 tg3_write_mem(tp, i, 0);
6939                 udelay(40);
6940         }
6941         memset(tp->hw_status, 0, TG3_HW_STATUS_SIZE);
6942
6943         if (tp->tg3_flags2 & TG3_FLG2_MII_SERDES) {
6944                 tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
6945                 /* reset to prevent losing 1st rx packet intermittently */
6946                 tw32_f(MAC_RX_MODE, RX_MODE_RESET);
6947                 udelay(10);
6948         }
6949
6950         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
6951                 tp->mac_mode &= MAC_MODE_APE_TX_EN | MAC_MODE_APE_RX_EN;
6952         else
6953                 tp->mac_mode = 0;
6954         tp->mac_mode |= MAC_MODE_TXSTAT_ENABLE | MAC_MODE_RXSTAT_ENABLE |
6955                 MAC_MODE_TDE_ENABLE | MAC_MODE_RDE_ENABLE | MAC_MODE_FHDE_ENABLE;
6956         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) &&
6957             !(tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) &&
6958             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700)
6959                 tp->mac_mode |= MAC_MODE_LINK_POLARITY;
6960         tw32_f(MAC_MODE, tp->mac_mode | MAC_MODE_RXSTAT_CLEAR | MAC_MODE_TXSTAT_CLEAR);
6961         udelay(40);
6962
6963         /* tp->grc_local_ctrl is partially set up during tg3_get_invariants().
6964          * If TG3_FLG2_IS_NIC is zero, we should read the
6965          * register to preserve the GPIO settings for LOMs. The GPIOs,
6966          * whether used as inputs or outputs, are set by boot code after
6967          * reset.
6968          */
6969         if (!(tp->tg3_flags2 & TG3_FLG2_IS_NIC)) {
6970                 u32 gpio_mask;
6971
6972                 gpio_mask = GRC_LCLCTRL_GPIO_OE0 | GRC_LCLCTRL_GPIO_OE1 |
6973                             GRC_LCLCTRL_GPIO_OE2 | GRC_LCLCTRL_GPIO_OUTPUT0 |
6974                             GRC_LCLCTRL_GPIO_OUTPUT1 | GRC_LCLCTRL_GPIO_OUTPUT2;
6975
6976                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752)
6977                         gpio_mask |= GRC_LCLCTRL_GPIO_OE3 |
6978                                      GRC_LCLCTRL_GPIO_OUTPUT3;
6979
6980                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755)
6981                         gpio_mask |= GRC_LCLCTRL_GPIO_UART_SEL;
6982
6983                 tp->grc_local_ctrl &= ~gpio_mask;
6984                 tp->grc_local_ctrl |= tr32(GRC_LOCAL_CTRL) & gpio_mask;
6985
6986                 /* GPIO1 must be driven high for eeprom write protect */
6987                 if (tp->tg3_flags & TG3_FLAG_EEPROM_WRITE_PROT)
6988                         tp->grc_local_ctrl |= (GRC_LCLCTRL_GPIO_OE1 |
6989                                                GRC_LCLCTRL_GPIO_OUTPUT1);
6990         }
6991         tw32_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl);
6992         udelay(100);
6993
6994         tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0);
6995         tp->last_tag = 0;
6996
6997         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
6998                 tw32_f(DMAC_MODE, DMAC_MODE_ENABLE);
6999                 udelay(40);
7000         }
7001
7002         val = (WDMAC_MODE_ENABLE | WDMAC_MODE_TGTABORT_ENAB |
7003                WDMAC_MODE_MSTABORT_ENAB | WDMAC_MODE_PARITYERR_ENAB |
7004                WDMAC_MODE_ADDROFLOW_ENAB | WDMAC_MODE_FIFOOFLOW_ENAB |
7005                WDMAC_MODE_FIFOURUN_ENAB | WDMAC_MODE_FIFOOREAD_ENAB |
7006                WDMAC_MODE_LNGREAD_ENAB);
7007
7008         /* If statement applies to 5705 and 5750 PCI devices only */
7009         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705 &&
7010              tp->pci_chip_rev_id != CHIPREV_ID_5705_A0) ||
7011             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750) {
7012                 if ((tp->tg3_flags & TG3_FLG2_TSO_CAPABLE) &&
7013                     (tp->pci_chip_rev_id == CHIPREV_ID_5705_A1 ||
7014                      tp->pci_chip_rev_id == CHIPREV_ID_5705_A2)) {
7015                         /* nothing */
7016                 } else if (!(tr32(TG3PCI_PCISTATE) & PCISTATE_BUS_SPEED_HIGH) &&
7017                            !(tp->tg3_flags2 & TG3_FLG2_IS_5788) &&
7018                            !(tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS)) {
7019                         val |= WDMAC_MODE_RX_ACCEL;
7020                 }
7021         }
7022
7023         /* Enable host coalescing bug fix */
7024         if (tp->tg3_flags3 & TG3_FLG3_5755_PLUS)
7025                 val |= WDMAC_MODE_STATUS_TAG_FIX;
7026
7027         tw32_f(WDMAC_MODE, val);
7028         udelay(40);
7029
7030         if (tp->tg3_flags & TG3_FLAG_PCIX_MODE) {
7031                 u16 pcix_cmd;
7032
7033                 pci_read_config_word(tp->pdev, tp->pcix_cap + PCI_X_CMD,
7034                                      &pcix_cmd);
7035                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703) {
7036                         pcix_cmd &= ~PCI_X_CMD_MAX_READ;
7037                         pcix_cmd |= PCI_X_CMD_READ_2K;
7038                 } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
7039                         pcix_cmd &= ~(PCI_X_CMD_MAX_SPLIT | PCI_X_CMD_MAX_READ);
7040                         pcix_cmd |= PCI_X_CMD_READ_2K;
7041                 }
7042                 pci_write_config_word(tp->pdev, tp->pcix_cap + PCI_X_CMD,
7043                                       pcix_cmd);
7044         }
7045
7046         tw32_f(RDMAC_MODE, rdmac_mode);
7047         udelay(40);
7048
7049         tw32(RCVDCC_MODE, RCVDCC_MODE_ENABLE | RCVDCC_MODE_ATTN_ENABLE);
7050         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
7051                 tw32(MBFREE_MODE, MBFREE_MODE_ENABLE);
7052
7053         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761)
7054                 tw32(SNDDATAC_MODE,
7055                      SNDDATAC_MODE_ENABLE | SNDDATAC_MODE_CDELAY);
7056         else
7057                 tw32(SNDDATAC_MODE, SNDDATAC_MODE_ENABLE);
7058
7059         tw32(SNDBDC_MODE, SNDBDC_MODE_ENABLE | SNDBDC_MODE_ATTN_ENABLE);
7060         tw32(RCVBDI_MODE, RCVBDI_MODE_ENABLE | RCVBDI_MODE_RCB_ATTN_ENAB);
7061         tw32(RCVDBDI_MODE, RCVDBDI_MODE_ENABLE | RCVDBDI_MODE_INV_RING_SZ);
7062         tw32(SNDDATAI_MODE, SNDDATAI_MODE_ENABLE);
7063         if (tp->tg3_flags2 & TG3_FLG2_HW_TSO)
7064                 tw32(SNDDATAI_MODE, SNDDATAI_MODE_ENABLE | 0x8);
7065         tw32(SNDBDI_MODE, SNDBDI_MODE_ENABLE | SNDBDI_MODE_ATTN_ENABLE);
7066         tw32(SNDBDS_MODE, SNDBDS_MODE_ENABLE | SNDBDS_MODE_ATTN_ENABLE);
7067
7068         if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0) {
7069                 err = tg3_load_5701_a0_firmware_fix(tp);
7070                 if (err)
7071                         return err;
7072         }
7073
7074         if (tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE) {
7075                 err = tg3_load_tso_firmware(tp);
7076                 if (err)
7077                         return err;
7078         }
7079
7080         tp->tx_mode = TX_MODE_ENABLE;
7081         tw32_f(MAC_TX_MODE, tp->tx_mode);
7082         udelay(100);
7083
7084         tp->rx_mode = RX_MODE_ENABLE;
7085         if (tp->tg3_flags3 & TG3_FLG3_5755_PLUS)
7086                 tp->rx_mode |= RX_MODE_IPV6_CSUM_ENABLE;
7087
7088         tw32_f(MAC_RX_MODE, tp->rx_mode);
7089         udelay(10);
7090
7091         tw32(MAC_LED_CTRL, tp->led_ctrl);
7092
7093         tw32(MAC_MI_STAT, MAC_MI_STAT_LNKSTAT_ATTN_ENAB);
7094         if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) {
7095                 tw32_f(MAC_RX_MODE, RX_MODE_RESET);
7096                 udelay(10);
7097         }
7098         tw32_f(MAC_RX_MODE, tp->rx_mode);
7099         udelay(10);
7100
7101         if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) {
7102                 if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) &&
7103                         !(tp->tg3_flags2 & TG3_FLG2_SERDES_PREEMPHASIS)) {
7104                         /* Set drive transmission level to 1.2V  */
7105                         /* only if the signal pre-emphasis bit is not set  */
7106                         val = tr32(MAC_SERDES_CFG);
7107                         val &= 0xfffff000;
7108                         val |= 0x880;
7109                         tw32(MAC_SERDES_CFG, val);
7110                 }
7111                 if (tp->pci_chip_rev_id == CHIPREV_ID_5703_A1)
7112                         tw32(MAC_SERDES_CFG, 0x616000);
7113         }
7114
7115         /* Prevent chip from dropping frames when flow control
7116          * is enabled.
7117          */
7118         tw32_f(MAC_LOW_WMARK_MAX_RX_FRAME, 2);
7119
7120         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 &&
7121             (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES)) {
7122                 /* Use hardware link auto-negotiation */
7123                 tp->tg3_flags2 |= TG3_FLG2_HW_AUTONEG;
7124         }
7125
7126         if ((tp->tg3_flags2 & TG3_FLG2_MII_SERDES) &&
7127             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714)) {
7128                 u32 tmp;
7129
7130                 tmp = tr32(SERDES_RX_CTRL);
7131                 tw32(SERDES_RX_CTRL, tmp | SERDES_RX_SIG_DETECT);
7132                 tp->grc_local_ctrl &= ~GRC_LCLCTRL_USE_EXT_SIG_DETECT;
7133                 tp->grc_local_ctrl |= GRC_LCLCTRL_USE_SIG_DETECT;
7134                 tw32(GRC_LOCAL_CTRL, tp->grc_local_ctrl);
7135         }
7136
7137         if (!(tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB)) {
7138                 if (tp->link_config.phy_is_low_power) {
7139                         tp->link_config.phy_is_low_power = 0;
7140                         tp->link_config.speed = tp->link_config.orig_speed;
7141                         tp->link_config.duplex = tp->link_config.orig_duplex;
7142                         tp->link_config.autoneg = tp->link_config.orig_autoneg;
7143                 }
7144
7145                 err = tg3_setup_phy(tp, 0);
7146                 if (err)
7147                         return err;
7148
7149                 if (!(tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) &&
7150                     GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5906) {
7151                         u32 tmp;
7152
7153                         /* Clear CRC stats. */
7154                         if (!tg3_readphy(tp, MII_TG3_TEST1, &tmp)) {
7155                                 tg3_writephy(tp, MII_TG3_TEST1,
7156                                              tmp | MII_TG3_TEST1_CRC_EN);
7157                                 tg3_readphy(tp, 0x14, &tmp);
7158                         }
7159                 }
7160         }
7161
7162         __tg3_set_rx_mode(tp->dev);
7163
7164         /* Initialize receive rules. */
7165         tw32(MAC_RCV_RULE_0,  0xc2000000 & RCV_RULE_DISABLE_MASK);
7166         tw32(MAC_RCV_VALUE_0, 0xffffffff & RCV_RULE_DISABLE_MASK);
7167         tw32(MAC_RCV_RULE_1,  0x86000004 & RCV_RULE_DISABLE_MASK);
7168         tw32(MAC_RCV_VALUE_1, 0xffffffff & RCV_RULE_DISABLE_MASK);
7169
7170         if ((tp->tg3_flags2 & TG3_FLG2_5705_PLUS) &&
7171             !(tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
7172                 limit = 8;
7173         else
7174                 limit = 16;
7175         if (tp->tg3_flags & TG3_FLAG_ENABLE_ASF)
7176                 limit -= 4;
7177         switch (limit) {
7178         case 16:
7179                 tw32(MAC_RCV_RULE_15,  0); tw32(MAC_RCV_VALUE_15,  0);
7180         case 15:
7181                 tw32(MAC_RCV_RULE_14,  0); tw32(MAC_RCV_VALUE_14,  0);
7182         case 14:
7183                 tw32(MAC_RCV_RULE_13,  0); tw32(MAC_RCV_VALUE_13,  0);
7184         case 13:
7185                 tw32(MAC_RCV_RULE_12,  0); tw32(MAC_RCV_VALUE_12,  0);
7186         case 12:
7187                 tw32(MAC_RCV_RULE_11,  0); tw32(MAC_RCV_VALUE_11,  0);
7188         case 11:
7189                 tw32(MAC_RCV_RULE_10,  0); tw32(MAC_RCV_VALUE_10,  0);
7190         case 10:
7191                 tw32(MAC_RCV_RULE_9,  0); tw32(MAC_RCV_VALUE_9,  0);
7192         case 9:
7193                 tw32(MAC_RCV_RULE_8,  0); tw32(MAC_RCV_VALUE_8,  0);
7194         case 8:
7195                 tw32(MAC_RCV_RULE_7,  0); tw32(MAC_RCV_VALUE_7,  0);
7196         case 7:
7197                 tw32(MAC_RCV_RULE_6,  0); tw32(MAC_RCV_VALUE_6,  0);
7198         case 6:
7199                 tw32(MAC_RCV_RULE_5,  0); tw32(MAC_RCV_VALUE_5,  0);
7200         case 5:
7201                 tw32(MAC_RCV_RULE_4,  0); tw32(MAC_RCV_VALUE_4,  0);
7202         case 4:
7203                 /* tw32(MAC_RCV_RULE_3,  0); tw32(MAC_RCV_VALUE_3,  0); */
7204         case 3:
7205                 /* tw32(MAC_RCV_RULE_2,  0); tw32(MAC_RCV_VALUE_2,  0); */
7206         case 2:
7207         case 1:
7208
7209         default:
7210                 break;
7211         }
7212
7213         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
7214                 /* Write our heartbeat update interval to APE. */
7215                 tg3_ape_write32(tp, TG3_APE_HOST_HEARTBEAT_INT_MS,
7216                                 APE_HOST_HEARTBEAT_INT_DISABLE);
7217
7218         tg3_write_sig_post_reset(tp, RESET_KIND_INIT);
7219
7220         return 0;
7221 }
7222
7223 /* Called at device open time to get the chip ready for
7224  * packet processing.  Invoked with tp->lock held.
7225  */
7226 static int tg3_init_hw(struct tg3 *tp, int reset_phy)
7227 {
7228         tg3_switch_clocks(tp);
7229
7230         tw32(TG3PCI_MEM_WIN_BASE_ADDR, 0);
7231
7232         return tg3_reset_hw(tp, reset_phy);
7233 }
7234
7235 #define TG3_STAT_ADD32(PSTAT, REG) \
7236 do {    u32 __val = tr32(REG); \
7237         (PSTAT)->low += __val; \
7238         if ((PSTAT)->low < __val) \
7239                 (PSTAT)->high += 1; \
7240 } while (0)
7241
7242 static void tg3_periodic_fetch_stats(struct tg3 *tp)
7243 {
7244         struct tg3_hw_stats *sp = tp->hw_stats;
7245
7246         if (!netif_carrier_ok(tp->dev))
7247                 return;
7248
7249         TG3_STAT_ADD32(&sp->tx_octets, MAC_TX_STATS_OCTETS);
7250         TG3_STAT_ADD32(&sp->tx_collisions, MAC_TX_STATS_COLLISIONS);
7251         TG3_STAT_ADD32(&sp->tx_xon_sent, MAC_TX_STATS_XON_SENT);
7252         TG3_STAT_ADD32(&sp->tx_xoff_sent, MAC_TX_STATS_XOFF_SENT);
7253         TG3_STAT_ADD32(&sp->tx_mac_errors, MAC_TX_STATS_MAC_ERRORS);
7254         TG3_STAT_ADD32(&sp->tx_single_collisions, MAC_TX_STATS_SINGLE_COLLISIONS);
7255         TG3_STAT_ADD32(&sp->tx_mult_collisions, MAC_TX_STATS_MULT_COLLISIONS);
7256         TG3_STAT_ADD32(&sp->tx_deferred, MAC_TX_STATS_DEFERRED);
7257         TG3_STAT_ADD32(&sp->tx_excessive_collisions, MAC_TX_STATS_EXCESSIVE_COL);
7258         TG3_STAT_ADD32(&sp->tx_late_collisions, MAC_TX_STATS_LATE_COL);
7259         TG3_STAT_ADD32(&sp->tx_ucast_packets, MAC_TX_STATS_UCAST);
7260         TG3_STAT_ADD32(&sp->tx_mcast_packets, MAC_TX_STATS_MCAST);
7261         TG3_STAT_ADD32(&sp->tx_bcast_packets, MAC_TX_STATS_BCAST);
7262
7263         TG3_STAT_ADD32(&sp->rx_octets, MAC_RX_STATS_OCTETS);
7264         TG3_STAT_ADD32(&sp->rx_fragments, MAC_RX_STATS_FRAGMENTS);
7265         TG3_STAT_ADD32(&sp->rx_ucast_packets, MAC_RX_STATS_UCAST);
7266         TG3_STAT_ADD32(&sp->rx_mcast_packets, MAC_RX_STATS_MCAST);
7267         TG3_STAT_ADD32(&sp->rx_bcast_packets, MAC_RX_STATS_BCAST);
7268         TG3_STAT_ADD32(&sp->rx_fcs_errors, MAC_RX_STATS_FCS_ERRORS);
7269         TG3_STAT_ADD32(&sp->rx_align_errors, MAC_RX_STATS_ALIGN_ERRORS);
7270         TG3_STAT_ADD32(&sp->rx_xon_pause_rcvd, MAC_RX_STATS_XON_PAUSE_RECVD);
7271         TG3_STAT_ADD32(&sp->rx_xoff_pause_rcvd, MAC_RX_STATS_XOFF_PAUSE_RECVD);
7272         TG3_STAT_ADD32(&sp->rx_mac_ctrl_rcvd, MAC_RX_STATS_MAC_CTRL_RECVD);
7273         TG3_STAT_ADD32(&sp->rx_xoff_entered, MAC_RX_STATS_XOFF_ENTERED);
7274         TG3_STAT_ADD32(&sp->rx_frame_too_long_errors, MAC_RX_STATS_FRAME_TOO_LONG);
7275         TG3_STAT_ADD32(&sp->rx_jabbers, MAC_RX_STATS_JABBERS);
7276         TG3_STAT_ADD32(&sp->rx_undersize_packets, MAC_RX_STATS_UNDERSIZE);
7277
7278         TG3_STAT_ADD32(&sp->rxbds_empty, RCVLPC_NO_RCV_BD_CNT);
7279         TG3_STAT_ADD32(&sp->rx_discards, RCVLPC_IN_DISCARDS_CNT);
7280         TG3_STAT_ADD32(&sp->rx_errors, RCVLPC_IN_ERRORS_CNT);
7281 }
7282
7283 static void tg3_timer(unsigned long __opaque)
7284 {
7285         struct tg3 *tp = (struct tg3 *) __opaque;
7286
7287         if (tp->irq_sync)
7288                 goto restart_timer;
7289
7290         spin_lock(&tp->lock);
7291
7292         if (!(tp->tg3_flags & TG3_FLAG_TAGGED_STATUS)) {
7293                 /* All of this garbage is because when using non-tagged
7294                  * IRQ status the mailbox/status_block protocol the chip
7295                  * uses with the cpu is race prone.
7296                  */
7297                 if (tp->hw_status->status & SD_STATUS_UPDATED) {
7298                         tw32(GRC_LOCAL_CTRL,
7299                              tp->grc_local_ctrl | GRC_LCLCTRL_SETINT);
7300                 } else {
7301                         tw32(HOSTCC_MODE, tp->coalesce_mode |
7302                              (HOSTCC_MODE_ENABLE | HOSTCC_MODE_NOW));
7303                 }
7304
7305                 if (!(tr32(WDMAC_MODE) & WDMAC_MODE_ENABLE)) {
7306                         tp->tg3_flags2 |= TG3_FLG2_RESTART_TIMER;
7307                         spin_unlock(&tp->lock);
7308                         schedule_work(&tp->reset_task);
7309                         return;
7310                 }
7311         }
7312
7313         /* This part only runs once per second. */
7314         if (!--tp->timer_counter) {
7315                 if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS)
7316                         tg3_periodic_fetch_stats(tp);
7317
7318                 if (tp->tg3_flags & TG3_FLAG_USE_LINKCHG_REG) {
7319                         u32 mac_stat;
7320                         int phy_event;
7321
7322                         mac_stat = tr32(MAC_STATUS);
7323
7324                         phy_event = 0;
7325                         if (tp->tg3_flags & TG3_FLAG_USE_MI_INTERRUPT) {
7326                                 if (mac_stat & MAC_STATUS_MI_INTERRUPT)
7327                                         phy_event = 1;
7328                         } else if (mac_stat & MAC_STATUS_LNKSTATE_CHANGED)
7329                                 phy_event = 1;
7330
7331                         if (phy_event)
7332                                 tg3_setup_phy(tp, 0);
7333                 } else if (tp->tg3_flags & TG3_FLAG_POLL_SERDES) {
7334                         u32 mac_stat = tr32(MAC_STATUS);
7335                         int need_setup = 0;
7336
7337                         if (netif_carrier_ok(tp->dev) &&
7338                             (mac_stat & MAC_STATUS_LNKSTATE_CHANGED)) {
7339                                 need_setup = 1;
7340                         }
7341                         if (! netif_carrier_ok(tp->dev) &&
7342                             (mac_stat & (MAC_STATUS_PCS_SYNCED |
7343                                          MAC_STATUS_SIGNAL_DET))) {
7344                                 need_setup = 1;
7345                         }
7346                         if (need_setup) {
7347                                 if (!tp->serdes_counter) {
7348                                         tw32_f(MAC_MODE,
7349                                              (tp->mac_mode &
7350                                               ~MAC_MODE_PORT_MODE_MASK));
7351                                         udelay(40);
7352                                         tw32_f(MAC_MODE, tp->mac_mode);
7353                                         udelay(40);
7354                                 }
7355                                 tg3_setup_phy(tp, 0);
7356                         }
7357                 } else if (tp->tg3_flags2 & TG3_FLG2_MII_SERDES)
7358                         tg3_serdes_parallel_detect(tp);
7359
7360                 tp->timer_counter = tp->timer_multiplier;
7361         }
7362
7363         /* Heartbeat is only sent once every 2 seconds.
7364          *
7365          * The heartbeat is to tell the ASF firmware that the host
7366          * driver is still alive.  In the event that the OS crashes,
7367          * ASF needs to reset the hardware to free up the FIFO space
7368          * that may be filled with rx packets destined for the host.
7369          * If the FIFO is full, ASF will no longer function properly.
7370          *
7371          * Unintended resets have been reported on real time kernels
7372          * where the timer doesn't run on time.  Netpoll will also have
7373          * same problem.
7374          *
7375          * The new FWCMD_NICDRV_ALIVE3 command tells the ASF firmware
7376          * to check the ring condition when the heartbeat is expiring
7377          * before doing the reset.  This will prevent most unintended
7378          * resets.
7379          */
7380         if (!--tp->asf_counter) {
7381                 if ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) &&
7382                     !(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)) {
7383                         tg3_wait_for_event_ack(tp);
7384
7385                         tg3_write_mem(tp, NIC_SRAM_FW_CMD_MBOX,
7386                                       FWCMD_NICDRV_ALIVE3);
7387                         tg3_write_mem(tp, NIC_SRAM_FW_CMD_LEN_MBOX, 4);
7388                         /* 5 seconds timeout */
7389                         tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX, 5);
7390
7391                         tg3_generate_fw_event(tp);
7392                 }
7393                 tp->asf_counter = tp->asf_multiplier;
7394         }
7395
7396         spin_unlock(&tp->lock);
7397
7398 restart_timer:
7399         tp->timer.expires = jiffies + tp->timer_offset;
7400         add_timer(&tp->timer);
7401 }
7402
7403 static int tg3_request_irq(struct tg3 *tp)
7404 {
7405         irq_handler_t fn;
7406         unsigned long flags;
7407         struct net_device *dev = tp->dev;
7408
7409         if (tp->tg3_flags2 & TG3_FLG2_USING_MSI) {
7410                 fn = tg3_msi;
7411                 if (tp->tg3_flags2 & TG3_FLG2_1SHOT_MSI)
7412                         fn = tg3_msi_1shot;
7413                 flags = IRQF_SAMPLE_RANDOM;
7414         } else {
7415                 fn = tg3_interrupt;
7416                 if (tp->tg3_flags & TG3_FLAG_TAGGED_STATUS)
7417                         fn = tg3_interrupt_tagged;
7418                 flags = IRQF_SHARED | IRQF_SAMPLE_RANDOM;
7419         }
7420         return (request_irq(tp->pdev->irq, fn, flags, dev->name, dev));
7421 }
7422
7423 static int tg3_test_interrupt(struct tg3 *tp)
7424 {
7425         struct net_device *dev = tp->dev;
7426         int err, i, intr_ok = 0;
7427
7428         if (!netif_running(dev))
7429                 return -ENODEV;
7430
7431         tg3_disable_ints(tp);
7432
7433         free_irq(tp->pdev->irq, dev);
7434
7435         err = request_irq(tp->pdev->irq, tg3_test_isr,
7436                           IRQF_SHARED | IRQF_SAMPLE_RANDOM, dev->name, dev);
7437         if (err)
7438                 return err;
7439
7440         tp->hw_status->status &= ~SD_STATUS_UPDATED;
7441         tg3_enable_ints(tp);
7442
7443         tw32_f(HOSTCC_MODE, tp->coalesce_mode | HOSTCC_MODE_ENABLE |
7444                HOSTCC_MODE_NOW);
7445
7446         for (i = 0; i < 5; i++) {
7447                 u32 int_mbox, misc_host_ctrl;
7448
7449                 int_mbox = tr32_mailbox(MAILBOX_INTERRUPT_0 +
7450                                         TG3_64BIT_REG_LOW);
7451                 misc_host_ctrl = tr32(TG3PCI_MISC_HOST_CTRL);
7452
7453                 if ((int_mbox != 0) ||
7454                     (misc_host_ctrl & MISC_HOST_CTRL_MASK_PCI_INT)) {
7455                         intr_ok = 1;
7456                         break;
7457                 }
7458
7459                 msleep(10);
7460         }
7461
7462         tg3_disable_ints(tp);
7463
7464         free_irq(tp->pdev->irq, dev);
7465
7466         err = tg3_request_irq(tp);
7467
7468         if (err)
7469                 return err;
7470
7471         if (intr_ok)
7472                 return 0;
7473
7474         return -EIO;
7475 }
7476
7477 /* Returns 0 if MSI test succeeds or MSI test fails and INTx mode is
7478  * successfully restored
7479  */
7480 static int tg3_test_msi(struct tg3 *tp)
7481 {
7482         struct net_device *dev = tp->dev;
7483         int err;
7484         u16 pci_cmd;
7485
7486         if (!(tp->tg3_flags2 & TG3_FLG2_USING_MSI))
7487                 return 0;
7488
7489         /* Turn off SERR reporting in case MSI terminates with Master
7490          * Abort.
7491          */
7492         pci_read_config_word(tp->pdev, PCI_COMMAND, &pci_cmd);
7493         pci_write_config_word(tp->pdev, PCI_COMMAND,
7494                               pci_cmd & ~PCI_COMMAND_SERR);
7495
7496         err = tg3_test_interrupt(tp);
7497
7498         pci_write_config_word(tp->pdev, PCI_COMMAND, pci_cmd);
7499
7500         if (!err)
7501                 return 0;
7502
7503         /* other failures */
7504         if (err != -EIO)
7505                 return err;
7506
7507         /* MSI test failed, go back to INTx mode */
7508         printk(KERN_WARNING PFX "%s: No interrupt was generated using MSI, "
7509                "switching to INTx mode. Please report this failure to "
7510                "the PCI maintainer and include system chipset information.\n",
7511                        tp->dev->name);
7512
7513         free_irq(tp->pdev->irq, dev);
7514         pci_disable_msi(tp->pdev);
7515
7516         tp->tg3_flags2 &= ~TG3_FLG2_USING_MSI;
7517
7518         err = tg3_request_irq(tp);
7519         if (err)
7520                 return err;
7521
7522         /* Need to reset the chip because the MSI cycle may have terminated
7523          * with Master Abort.
7524          */
7525         tg3_full_lock(tp, 1);
7526
7527         tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
7528         err = tg3_init_hw(tp, 1);
7529
7530         tg3_full_unlock(tp);
7531
7532         if (err)
7533                 free_irq(tp->pdev->irq, dev);
7534
7535         return err;
7536 }
7537
7538 static int tg3_request_firmware(struct tg3 *tp)
7539 {
7540         const __be32 *fw_data;
7541
7542         if (request_firmware(&tp->fw, tp->fw_needed, &tp->pdev->dev)) {
7543                 printk(KERN_ERR "%s: Failed to load firmware \"%s\"\n",
7544                        tp->dev->name, tp->fw_needed);
7545                 return -ENOENT;
7546         }
7547
7548         fw_data = (void *)tp->fw->data;
7549
7550         /* Firmware blob starts with version numbers, followed by
7551          * start address and _full_ length including BSS sections
7552          * (which must be longer than the actual data, of course
7553          */
7554
7555         tp->fw_len = be32_to_cpu(fw_data[2]);   /* includes bss */
7556         if (tp->fw_len < (tp->fw->size - 12)) {
7557                 printk(KERN_ERR "%s: bogus length %d in \"%s\"\n",
7558                        tp->dev->name, tp->fw_len, tp->fw_needed);
7559                 release_firmware(tp->fw);
7560                 tp->fw = NULL;
7561                 return -EINVAL;
7562         }
7563
7564         /* We no longer need firmware; we have it. */
7565         tp->fw_needed = NULL;
7566         return 0;
7567 }
7568
7569 static int tg3_open(struct net_device *dev)
7570 {
7571         struct tg3 *tp = netdev_priv(dev);
7572         int err;
7573
7574         if (tp->fw_needed) {
7575                 err = tg3_request_firmware(tp);
7576                 if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0) {
7577                         if (err)
7578                                 return err;
7579                 } else if (err) {
7580                         printk(KERN_WARNING "%s: TSO capability disabled.\n",
7581                                tp->dev->name);
7582                         tp->tg3_flags2 &= ~TG3_FLG2_TSO_CAPABLE;
7583                 } else if (!(tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE)) {
7584                         printk(KERN_NOTICE "%s: TSO capability restored.\n",
7585                                tp->dev->name);
7586                         tp->tg3_flags2 |= TG3_FLG2_TSO_CAPABLE;
7587                 }
7588         }
7589
7590         netif_carrier_off(tp->dev);
7591
7592         err = tg3_set_power_state(tp, PCI_D0);
7593         if (err)
7594                 return err;
7595
7596         tg3_full_lock(tp, 0);
7597
7598         tg3_disable_ints(tp);
7599         tp->tg3_flags &= ~TG3_FLAG_INIT_COMPLETE;
7600
7601         tg3_full_unlock(tp);
7602
7603         /* The placement of this call is tied
7604          * to the setup and use of Host TX descriptors.
7605          */
7606         err = tg3_alloc_consistent(tp);
7607         if (err)
7608                 return err;
7609
7610         if (tp->tg3_flags & TG3_FLAG_SUPPORT_MSI) {
7611                 /* All MSI supporting chips should support tagged
7612                  * status.  Assert that this is the case.
7613                  */
7614                 if (!(tp->tg3_flags & TG3_FLAG_TAGGED_STATUS)) {
7615                         printk(KERN_WARNING PFX "%s: MSI without TAGGED? "
7616                                "Not using MSI.\n", tp->dev->name);
7617                 } else if (pci_enable_msi(tp->pdev) == 0) {
7618                         u32 msi_mode;
7619
7620                         msi_mode = tr32(MSGINT_MODE);
7621                         tw32(MSGINT_MODE, msi_mode | MSGINT_MODE_ENABLE);
7622                         tp->tg3_flags2 |= TG3_FLG2_USING_MSI;
7623                 }
7624         }
7625         err = tg3_request_irq(tp);
7626
7627         if (err) {
7628                 if (tp->tg3_flags2 & TG3_FLG2_USING_MSI) {
7629                         pci_disable_msi(tp->pdev);
7630                         tp->tg3_flags2 &= ~TG3_FLG2_USING_MSI;
7631                 }
7632                 tg3_free_consistent(tp);
7633                 return err;
7634         }
7635
7636         napi_enable(&tp->napi);
7637
7638         tg3_full_lock(tp, 0);
7639
7640         err = tg3_init_hw(tp, 1);
7641         if (err) {
7642                 tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
7643                 tg3_free_rings(tp);
7644         } else {
7645                 if (tp->tg3_flags & TG3_FLAG_TAGGED_STATUS)
7646                         tp->timer_offset = HZ;
7647                 else
7648                         tp->timer_offset = HZ / 10;
7649
7650                 BUG_ON(tp->timer_offset > HZ);
7651                 tp->timer_counter = tp->timer_multiplier =
7652                         (HZ / tp->timer_offset);
7653                 tp->asf_counter = tp->asf_multiplier =
7654                         ((HZ / tp->timer_offset) * 2);
7655
7656                 init_timer(&tp->timer);
7657                 tp->timer.expires = jiffies + tp->timer_offset;
7658                 tp->timer.data = (unsigned long) tp;
7659                 tp->timer.function = tg3_timer;
7660         }
7661
7662         tg3_full_unlock(tp);
7663
7664         if (err) {
7665                 napi_disable(&tp->napi);
7666                 free_irq(tp->pdev->irq, dev);
7667                 if (tp->tg3_flags2 & TG3_FLG2_USING_MSI) {
7668                         pci_disable_msi(tp->pdev);
7669                         tp->tg3_flags2 &= ~TG3_FLG2_USING_MSI;
7670                 }
7671                 tg3_free_consistent(tp);
7672                 return err;
7673         }
7674
7675         if (tp->tg3_flags2 & TG3_FLG2_USING_MSI) {
7676                 err = tg3_test_msi(tp);
7677
7678                 if (err) {
7679                         tg3_full_lock(tp, 0);
7680
7681                         if (tp->tg3_flags2 & TG3_FLG2_USING_MSI) {
7682                                 pci_disable_msi(tp->pdev);
7683                                 tp->tg3_flags2 &= ~TG3_FLG2_USING_MSI;
7684                         }
7685                         tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
7686                         tg3_free_rings(tp);
7687                         tg3_free_consistent(tp);
7688
7689                         tg3_full_unlock(tp);
7690
7691                         napi_disable(&tp->napi);
7692
7693                         return err;
7694                 }
7695
7696                 if (tp->tg3_flags2 & TG3_FLG2_USING_MSI) {
7697                         if (tp->tg3_flags2 & TG3_FLG2_1SHOT_MSI) {
7698                                 u32 val = tr32(PCIE_TRANSACTION_CFG);
7699
7700                                 tw32(PCIE_TRANSACTION_CFG,
7701                                      val | PCIE_TRANS_CFG_1SHOT_MSI);
7702                         }
7703                 }
7704         }
7705
7706         tg3_phy_start(tp);
7707
7708         tg3_full_lock(tp, 0);
7709
7710         add_timer(&tp->timer);
7711         tp->tg3_flags |= TG3_FLAG_INIT_COMPLETE;
7712         tg3_enable_ints(tp);
7713
7714         tg3_full_unlock(tp);
7715
7716         netif_start_queue(dev);
7717
7718         return 0;
7719 }
7720
7721 #if 0
7722 /*static*/ void tg3_dump_state(struct tg3 *tp)
7723 {
7724         u32 val32, val32_2, val32_3, val32_4, val32_5;
7725         u16 val16;
7726         int i;
7727
7728         pci_read_config_word(tp->pdev, PCI_STATUS, &val16);
7729         pci_read_config_dword(tp->pdev, TG3PCI_PCISTATE, &val32);
7730         printk("DEBUG: PCI status [%04x] TG3PCI state[%08x]\n",
7731                val16, val32);
7732
7733         /* MAC block */
7734         printk("DEBUG: MAC_MODE[%08x] MAC_STATUS[%08x]\n",
7735                tr32(MAC_MODE), tr32(MAC_STATUS));
7736         printk("       MAC_EVENT[%08x] MAC_LED_CTRL[%08x]\n",
7737                tr32(MAC_EVENT), tr32(MAC_LED_CTRL));
7738         printk("DEBUG: MAC_TX_MODE[%08x] MAC_TX_STATUS[%08x]\n",
7739                tr32(MAC_TX_MODE), tr32(MAC_TX_STATUS));
7740         printk("       MAC_RX_MODE[%08x] MAC_RX_STATUS[%08x]\n",
7741                tr32(MAC_RX_MODE), tr32(MAC_RX_STATUS));
7742
7743         /* Send data initiator control block */
7744         printk("DEBUG: SNDDATAI_MODE[%08x] SNDDATAI_STATUS[%08x]\n",
7745                tr32(SNDDATAI_MODE), tr32(SNDDATAI_STATUS));
7746         printk("       SNDDATAI_STATSCTRL[%08x]\n",
7747                tr32(SNDDATAI_STATSCTRL));
7748
7749         /* Send data completion control block */
7750         printk("DEBUG: SNDDATAC_MODE[%08x]\n", tr32(SNDDATAC_MODE));
7751
7752         /* Send BD ring selector block */
7753         printk("DEBUG: SNDBDS_MODE[%08x] SNDBDS_STATUS[%08x]\n",
7754                tr32(SNDBDS_MODE), tr32(SNDBDS_STATUS));
7755
7756         /* Send BD initiator control block */
7757         printk("DEBUG: SNDBDI_MODE[%08x] SNDBDI_STATUS[%08x]\n",
7758                tr32(SNDBDI_MODE), tr32(SNDBDI_STATUS));
7759
7760         /* Send BD completion control block */
7761         printk("DEBUG: SNDBDC_MODE[%08x]\n", tr32(SNDBDC_MODE));
7762
7763         /* Receive list placement control block */
7764         printk("DEBUG: RCVLPC_MODE[%08x] RCVLPC_STATUS[%08x]\n",
7765                tr32(RCVLPC_MODE), tr32(RCVLPC_STATUS));
7766         printk("       RCVLPC_STATSCTRL[%08x]\n",
7767                tr32(RCVLPC_STATSCTRL));
7768
7769         /* Receive data and receive BD initiator control block */
7770         printk("DEBUG: RCVDBDI_MODE[%08x] RCVDBDI_STATUS[%08x]\n",
7771                tr32(RCVDBDI_MODE), tr32(RCVDBDI_STATUS));
7772
7773         /* Receive data completion control block */
7774         printk("DEBUG: RCVDCC_MODE[%08x]\n",
7775                tr32(RCVDCC_MODE));
7776
7777         /* Receive BD initiator control block */
7778         printk("DEBUG: RCVBDI_MODE[%08x] RCVBDI_STATUS[%08x]\n",
7779                tr32(RCVBDI_MODE), tr32(RCVBDI_STATUS));
7780
7781         /* Receive BD completion control block */
7782         printk("DEBUG: RCVCC_MODE[%08x] RCVCC_STATUS[%08x]\n",
7783                tr32(RCVCC_MODE), tr32(RCVCC_STATUS));
7784
7785         /* Receive list selector control block */
7786         printk("DEBUG: RCVLSC_MODE[%08x] RCVLSC_STATUS[%08x]\n",
7787                tr32(RCVLSC_MODE), tr32(RCVLSC_STATUS));
7788
7789         /* Mbuf cluster free block */
7790         printk("DEBUG: MBFREE_MODE[%08x] MBFREE_STATUS[%08x]\n",
7791                tr32(MBFREE_MODE), tr32(MBFREE_STATUS));
7792
7793         /* Host coalescing control block */
7794         printk("DEBUG: HOSTCC_MODE[%08x] HOSTCC_STATUS[%08x]\n",
7795                tr32(HOSTCC_MODE), tr32(HOSTCC_STATUS));
7796         printk("DEBUG: HOSTCC_STATS_BLK_HOST_ADDR[%08x%08x]\n",
7797                tr32(HOSTCC_STATS_BLK_HOST_ADDR + TG3_64BIT_REG_HIGH),
7798                tr32(HOSTCC_STATS_BLK_HOST_ADDR + TG3_64BIT_REG_LOW));
7799         printk("DEBUG: HOSTCC_STATUS_BLK_HOST_ADDR[%08x%08x]\n",
7800                tr32(HOSTCC_STATUS_BLK_HOST_ADDR + TG3_64BIT_REG_HIGH),
7801                tr32(HOSTCC_STATUS_BLK_HOST_ADDR + TG3_64BIT_REG_LOW));
7802         printk("DEBUG: HOSTCC_STATS_BLK_NIC_ADDR[%08x]\n",
7803                tr32(HOSTCC_STATS_BLK_NIC_ADDR));
7804         printk("DEBUG: HOSTCC_STATUS_BLK_NIC_ADDR[%08x]\n",
7805                tr32(HOSTCC_STATUS_BLK_NIC_ADDR));
7806
7807         /* Memory arbiter control block */
7808         printk("DEBUG: MEMARB_MODE[%08x] MEMARB_STATUS[%08x]\n",
7809                tr32(MEMARB_MODE), tr32(MEMARB_STATUS));
7810
7811         /* Buffer manager control block */
7812         printk("DEBUG: BUFMGR_MODE[%08x] BUFMGR_STATUS[%08x]\n",
7813                tr32(BUFMGR_MODE), tr32(BUFMGR_STATUS));
7814         printk("DEBUG: BUFMGR_MB_POOL_ADDR[%08x] BUFMGR_MB_POOL_SIZE[%08x]\n",
7815                tr32(BUFMGR_MB_POOL_ADDR), tr32(BUFMGR_MB_POOL_SIZE));
7816         printk("DEBUG: BUFMGR_DMA_DESC_POOL_ADDR[%08x] "
7817                "BUFMGR_DMA_DESC_POOL_SIZE[%08x]\n",
7818                tr32(BUFMGR_DMA_DESC_POOL_ADDR),
7819                tr32(BUFMGR_DMA_DESC_POOL_SIZE));
7820
7821         /* Read DMA control block */
7822         printk("DEBUG: RDMAC_MODE[%08x] RDMAC_STATUS[%08x]\n",
7823                tr32(RDMAC_MODE), tr32(RDMAC_STATUS));
7824
7825         /* Write DMA control block */
7826         printk("DEBUG: WDMAC_MODE[%08x] WDMAC_STATUS[%08x]\n",
7827                tr32(WDMAC_MODE), tr32(WDMAC_STATUS));
7828
7829         /* DMA completion block */
7830         printk("DEBUG: DMAC_MODE[%08x]\n",
7831                tr32(DMAC_MODE));
7832
7833         /* GRC block */
7834         printk("DEBUG: GRC_MODE[%08x] GRC_MISC_CFG[%08x]\n",
7835                tr32(GRC_MODE), tr32(GRC_MISC_CFG));
7836         printk("DEBUG: GRC_LOCAL_CTRL[%08x]\n",
7837                tr32(GRC_LOCAL_CTRL));
7838
7839         /* TG3_BDINFOs */
7840         printk("DEBUG: RCVDBDI_JUMBO_BD[%08x%08x:%08x:%08x]\n",
7841                tr32(RCVDBDI_JUMBO_BD + 0x0),
7842                tr32(RCVDBDI_JUMBO_BD + 0x4),
7843                tr32(RCVDBDI_JUMBO_BD + 0x8),
7844                tr32(RCVDBDI_JUMBO_BD + 0xc));
7845         printk("DEBUG: RCVDBDI_STD_BD[%08x%08x:%08x:%08x]\n",
7846                tr32(RCVDBDI_STD_BD + 0x0),
7847                tr32(RCVDBDI_STD_BD + 0x4),
7848                tr32(RCVDBDI_STD_BD + 0x8),
7849                tr32(RCVDBDI_STD_BD + 0xc));
7850         printk("DEBUG: RCVDBDI_MINI_BD[%08x%08x:%08x:%08x]\n",
7851                tr32(RCVDBDI_MINI_BD + 0x0),
7852                tr32(RCVDBDI_MINI_BD + 0x4),
7853                tr32(RCVDBDI_MINI_BD + 0x8),
7854                tr32(RCVDBDI_MINI_BD + 0xc));
7855
7856         tg3_read_mem(tp, NIC_SRAM_SEND_RCB + 0x0, &val32);
7857         tg3_read_mem(tp, NIC_SRAM_SEND_RCB + 0x4, &val32_2);
7858         tg3_read_mem(tp, NIC_SRAM_SEND_RCB + 0x8, &val32_3);
7859         tg3_read_mem(tp, NIC_SRAM_SEND_RCB + 0xc, &val32_4);
7860         printk("DEBUG: SRAM_SEND_RCB_0[%08x%08x:%08x:%08x]\n",
7861                val32, val32_2, val32_3, val32_4);
7862
7863         tg3_read_mem(tp, NIC_SRAM_RCV_RET_RCB + 0x0, &val32);
7864         tg3_read_mem(tp, NIC_SRAM_RCV_RET_RCB + 0x4, &val32_2);
7865         tg3_read_mem(tp, NIC_SRAM_RCV_RET_RCB + 0x8, &val32_3);
7866         tg3_read_mem(tp, NIC_SRAM_RCV_RET_RCB + 0xc, &val32_4);
7867         printk("DEBUG: SRAM_RCV_RET_RCB_0[%08x%08x:%08x:%08x]\n",
7868                val32, val32_2, val32_3, val32_4);
7869
7870         tg3_read_mem(tp, NIC_SRAM_STATUS_BLK + 0x0, &val32);
7871         tg3_read_mem(tp, NIC_SRAM_STATUS_BLK + 0x4, &val32_2);
7872         tg3_read_mem(tp, NIC_SRAM_STATUS_BLK + 0x8, &val32_3);
7873         tg3_read_mem(tp, NIC_SRAM_STATUS_BLK + 0xc, &val32_4);
7874         tg3_read_mem(tp, NIC_SRAM_STATUS_BLK + 0x10, &val32_5);
7875         printk("DEBUG: SRAM_STATUS_BLK[%08x:%08x:%08x:%08x:%08x]\n",
7876                val32, val32_2, val32_3, val32_4, val32_5);
7877
7878         /* SW status block */
7879         printk("DEBUG: Host status block [%08x:%08x:(%04x:%04x:%04x):(%04x:%04x)]\n",
7880                tp->hw_status->status,
7881                tp->hw_status->status_tag,
7882                tp->hw_status->rx_jumbo_consumer,
7883                tp->hw_status->rx_consumer,
7884                tp->hw_status->rx_mini_consumer,
7885                tp->hw_status->idx[0].rx_producer,
7886                tp->hw_status->idx[0].tx_consumer);
7887
7888         /* SW statistics block */
7889         printk("DEBUG: Host statistics block [%08x:%08x:%08x:%08x]\n",
7890                ((u32 *)tp->hw_stats)[0],
7891                ((u32 *)tp->hw_stats)[1],
7892                ((u32 *)tp->hw_stats)[2],
7893                ((u32 *)tp->hw_stats)[3]);
7894
7895         /* Mailboxes */
7896         printk("DEBUG: SNDHOST_PROD[%08x%08x] SNDNIC_PROD[%08x%08x]\n",
7897                tr32_mailbox(MAILBOX_SNDHOST_PROD_IDX_0 + 0x0),
7898                tr32_mailbox(MAILBOX_SNDHOST_PROD_IDX_0 + 0x4),
7899                tr32_mailbox(MAILBOX_SNDNIC_PROD_IDX_0 + 0x0),
7900                tr32_mailbox(MAILBOX_SNDNIC_PROD_IDX_0 + 0x4));
7901
7902         /* NIC side send descriptors. */
7903         for (i = 0; i < 6; i++) {
7904                 unsigned long txd;
7905
7906                 txd = tp->regs + NIC_SRAM_WIN_BASE + NIC_SRAM_TX_BUFFER_DESC
7907                         + (i * sizeof(struct tg3_tx_buffer_desc));
7908                 printk("DEBUG: NIC TXD(%d)[%08x:%08x:%08x:%08x]\n",
7909                        i,
7910                        readl(txd + 0x0), readl(txd + 0x4),
7911                        readl(txd + 0x8), readl(txd + 0xc));
7912         }
7913
7914         /* NIC side RX descriptors. */
7915         for (i = 0; i < 6; i++) {
7916                 unsigned long rxd;
7917
7918                 rxd = tp->regs + NIC_SRAM_WIN_BASE + NIC_SRAM_RX_BUFFER_DESC
7919                         + (i * sizeof(struct tg3_rx_buffer_desc));
7920                 printk("DEBUG: NIC RXD_STD(%d)[0][%08x:%08x:%08x:%08x]\n",
7921                        i,
7922                        readl(rxd + 0x0), readl(rxd + 0x4),
7923                        readl(rxd + 0x8), readl(rxd + 0xc));
7924                 rxd += (4 * sizeof(u32));
7925                 printk("DEBUG: NIC RXD_STD(%d)[1][%08x:%08x:%08x:%08x]\n",
7926                        i,
7927                        readl(rxd + 0x0), readl(rxd + 0x4),
7928                        readl(rxd + 0x8), readl(rxd + 0xc));
7929         }
7930
7931         for (i = 0; i < 6; i++) {
7932                 unsigned long rxd;
7933
7934                 rxd = tp->regs + NIC_SRAM_WIN_BASE + NIC_SRAM_RX_JUMBO_BUFFER_DESC
7935                         + (i * sizeof(struct tg3_rx_buffer_desc));
7936                 printk("DEBUG: NIC RXD_JUMBO(%d)[0][%08x:%08x:%08x:%08x]\n",
7937                        i,
7938                        readl(rxd + 0x0), readl(rxd + 0x4),
7939                        readl(rxd + 0x8), readl(rxd + 0xc));
7940                 rxd += (4 * sizeof(u32));
7941                 printk("DEBUG: NIC RXD_JUMBO(%d)[1][%08x:%08x:%08x:%08x]\n",
7942                        i,
7943                        readl(rxd + 0x0), readl(rxd + 0x4),
7944                        readl(rxd + 0x8), readl(rxd + 0xc));
7945         }
7946 }
7947 #endif
7948
7949 static struct net_device_stats *tg3_get_stats(struct net_device *);
7950 static struct tg3_ethtool_stats *tg3_get_estats(struct tg3 *);
7951
7952 static int tg3_close(struct net_device *dev)
7953 {
7954         struct tg3 *tp = netdev_priv(dev);
7955
7956         napi_disable(&tp->napi);
7957         cancel_work_sync(&tp->reset_task);
7958
7959         netif_stop_queue(dev);
7960
7961         del_timer_sync(&tp->timer);
7962
7963         tg3_full_lock(tp, 1);
7964 #if 0
7965         tg3_dump_state(tp);
7966 #endif
7967
7968         tg3_disable_ints(tp);
7969
7970         tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
7971         tg3_free_rings(tp);
7972         tp->tg3_flags &= ~TG3_FLAG_INIT_COMPLETE;
7973
7974         tg3_full_unlock(tp);
7975
7976         free_irq(tp->pdev->irq, dev);
7977         if (tp->tg3_flags2 & TG3_FLG2_USING_MSI) {
7978                 pci_disable_msi(tp->pdev);
7979                 tp->tg3_flags2 &= ~TG3_FLG2_USING_MSI;
7980         }
7981
7982         memcpy(&tp->net_stats_prev, tg3_get_stats(tp->dev),
7983                sizeof(tp->net_stats_prev));
7984         memcpy(&tp->estats_prev, tg3_get_estats(tp),
7985                sizeof(tp->estats_prev));
7986
7987         tg3_free_consistent(tp);
7988
7989         tg3_set_power_state(tp, PCI_D3hot);
7990
7991         netif_carrier_off(tp->dev);
7992
7993         return 0;
7994 }
7995
7996 static inline unsigned long get_stat64(tg3_stat64_t *val)
7997 {
7998         unsigned long ret;
7999
8000 #if (BITS_PER_LONG == 32)
8001         ret = val->low;
8002 #else
8003         ret = ((u64)val->high << 32) | ((u64)val->low);
8004 #endif
8005         return ret;
8006 }
8007
8008 static inline u64 get_estat64(tg3_stat64_t *val)
8009 {
8010        return ((u64)val->high << 32) | ((u64)val->low);
8011 }
8012
8013 static unsigned long calc_crc_errors(struct tg3 *tp)
8014 {
8015         struct tg3_hw_stats *hw_stats = tp->hw_stats;
8016
8017         if (!(tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) &&
8018             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
8019              GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701)) {
8020                 u32 val;
8021
8022                 spin_lock_bh(&tp->lock);
8023                 if (!tg3_readphy(tp, MII_TG3_TEST1, &val)) {
8024                         tg3_writephy(tp, MII_TG3_TEST1,
8025                                      val | MII_TG3_TEST1_CRC_EN);
8026                         tg3_readphy(tp, 0x14, &val);
8027                 } else
8028                         val = 0;
8029                 spin_unlock_bh(&tp->lock);
8030
8031                 tp->phy_crc_errors += val;
8032
8033                 return tp->phy_crc_errors;
8034         }
8035
8036         return get_stat64(&hw_stats->rx_fcs_errors);
8037 }
8038
8039 #define ESTAT_ADD(member) \
8040         estats->member =        old_estats->member + \
8041                                 get_estat64(&hw_stats->member)
8042
8043 static struct tg3_ethtool_stats *tg3_get_estats(struct tg3 *tp)
8044 {
8045         struct tg3_ethtool_stats *estats = &tp->estats;
8046         struct tg3_ethtool_stats *old_estats = &tp->estats_prev;
8047         struct tg3_hw_stats *hw_stats = tp->hw_stats;
8048
8049         if (!hw_stats)
8050                 return old_estats;
8051
8052         ESTAT_ADD(rx_octets);
8053         ESTAT_ADD(rx_fragments);
8054         ESTAT_ADD(rx_ucast_packets);
8055         ESTAT_ADD(rx_mcast_packets);
8056         ESTAT_ADD(rx_bcast_packets);
8057         ESTAT_ADD(rx_fcs_errors);
8058         ESTAT_ADD(rx_align_errors);
8059         ESTAT_ADD(rx_xon_pause_rcvd);
8060         ESTAT_ADD(rx_xoff_pause_rcvd);
8061         ESTAT_ADD(rx_mac_ctrl_rcvd);
8062         ESTAT_ADD(rx_xoff_entered);
8063         ESTAT_ADD(rx_frame_too_long_errors);
8064         ESTAT_ADD(rx_jabbers);
8065         ESTAT_ADD(rx_undersize_packets);
8066         ESTAT_ADD(rx_in_length_errors);
8067         ESTAT_ADD(rx_out_length_errors);
8068         ESTAT_ADD(rx_64_or_less_octet_packets);
8069         ESTAT_ADD(rx_65_to_127_octet_packets);
8070         ESTAT_ADD(rx_128_to_255_octet_packets);
8071         ESTAT_ADD(rx_256_to_511_octet_packets);
8072         ESTAT_ADD(rx_512_to_1023_octet_packets);
8073         ESTAT_ADD(rx_1024_to_1522_octet_packets);
8074         ESTAT_ADD(rx_1523_to_2047_octet_packets);
8075         ESTAT_ADD(rx_2048_to_4095_octet_packets);
8076         ESTAT_ADD(rx_4096_to_8191_octet_packets);
8077         ESTAT_ADD(rx_8192_to_9022_octet_packets);
8078
8079         ESTAT_ADD(tx_octets);
8080         ESTAT_ADD(tx_collisions);
8081         ESTAT_ADD(tx_xon_sent);
8082         ESTAT_ADD(tx_xoff_sent);
8083         ESTAT_ADD(tx_flow_control);
8084         ESTAT_ADD(tx_mac_errors);
8085         ESTAT_ADD(tx_single_collisions);
8086         ESTAT_ADD(tx_mult_collisions);
8087         ESTAT_ADD(tx_deferred);
8088         ESTAT_ADD(tx_excessive_collisions);
8089         ESTAT_ADD(tx_late_collisions);
8090         ESTAT_ADD(tx_collide_2times);
8091         ESTAT_ADD(tx_collide_3times);
8092         ESTAT_ADD(tx_collide_4times);
8093         ESTAT_ADD(tx_collide_5times);
8094         ESTAT_ADD(tx_collide_6times);
8095         ESTAT_ADD(tx_collide_7times);
8096         ESTAT_ADD(tx_collide_8times);
8097         ESTAT_ADD(tx_collide_9times);
8098         ESTAT_ADD(tx_collide_10times);
8099         ESTAT_ADD(tx_collide_11times);
8100         ESTAT_ADD(tx_collide_12times);
8101         ESTAT_ADD(tx_collide_13times);
8102         ESTAT_ADD(tx_collide_14times);
8103         ESTAT_ADD(tx_collide_15times);
8104         ESTAT_ADD(tx_ucast_packets);
8105         ESTAT_ADD(tx_mcast_packets);
8106         ESTAT_ADD(tx_bcast_packets);
8107         ESTAT_ADD(tx_carrier_sense_errors);
8108         ESTAT_ADD(tx_discards);
8109         ESTAT_ADD(tx_errors);
8110
8111         ESTAT_ADD(dma_writeq_full);
8112         ESTAT_ADD(dma_write_prioq_full);
8113         ESTAT_ADD(rxbds_empty);
8114         ESTAT_ADD(rx_discards);
8115         ESTAT_ADD(rx_errors);
8116         ESTAT_ADD(rx_threshold_hit);
8117
8118         ESTAT_ADD(dma_readq_full);
8119         ESTAT_ADD(dma_read_prioq_full);
8120         ESTAT_ADD(tx_comp_queue_full);
8121
8122         ESTAT_ADD(ring_set_send_prod_index);
8123         ESTAT_ADD(ring_status_update);
8124         ESTAT_ADD(nic_irqs);
8125         ESTAT_ADD(nic_avoided_irqs);
8126         ESTAT_ADD(nic_tx_threshold_hit);
8127
8128         return estats;
8129 }
8130
8131 static struct net_device_stats *tg3_get_stats(struct net_device *dev)
8132 {
8133         struct tg3 *tp = netdev_priv(dev);
8134         struct net_device_stats *stats = &tp->net_stats;
8135         struct net_device_stats *old_stats = &tp->net_stats_prev;
8136         struct tg3_hw_stats *hw_stats = tp->hw_stats;
8137
8138         if (!hw_stats)
8139                 return old_stats;
8140
8141         stats->rx_packets = old_stats->rx_packets +
8142                 get_stat64(&hw_stats->rx_ucast_packets) +
8143                 get_stat64(&hw_stats->rx_mcast_packets) +
8144                 get_stat64(&hw_stats->rx_bcast_packets);
8145
8146         stats->tx_packets = old_stats->tx_packets +
8147                 get_stat64(&hw_stats->tx_ucast_packets) +
8148                 get_stat64(&hw_stats->tx_mcast_packets) +
8149                 get_stat64(&hw_stats->tx_bcast_packets);
8150
8151         stats->rx_bytes = old_stats->rx_bytes +
8152                 get_stat64(&hw_stats->rx_octets);
8153         stats->tx_bytes = old_stats->tx_bytes +
8154                 get_stat64(&hw_stats->tx_octets);
8155
8156         stats->rx_errors = old_stats->rx_errors +
8157                 get_stat64(&hw_stats->rx_errors);
8158         stats->tx_errors = old_stats->tx_errors +
8159                 get_stat64(&hw_stats->tx_errors) +
8160                 get_stat64(&hw_stats->tx_mac_errors) +
8161                 get_stat64(&hw_stats->tx_carrier_sense_errors) +
8162                 get_stat64(&hw_stats->tx_discards);
8163
8164         stats->multicast = old_stats->multicast +
8165                 get_stat64(&hw_stats->rx_mcast_packets);
8166         stats->collisions = old_stats->collisions +
8167                 get_stat64(&hw_stats->tx_collisions);
8168
8169         stats->rx_length_errors = old_stats->rx_length_errors +
8170                 get_stat64(&hw_stats->rx_frame_too_long_errors) +
8171                 get_stat64(&hw_stats->rx_undersize_packets);
8172
8173         stats->rx_over_errors = old_stats->rx_over_errors +
8174                 get_stat64(&hw_stats->rxbds_empty);
8175         stats->rx_frame_errors = old_stats->rx_frame_errors +
8176                 get_stat64(&hw_stats->rx_align_errors);
8177         stats->tx_aborted_errors = old_stats->tx_aborted_errors +
8178                 get_stat64(&hw_stats->tx_discards);
8179         stats->tx_carrier_errors = old_stats->tx_carrier_errors +
8180                 get_stat64(&hw_stats->tx_carrier_sense_errors);
8181
8182         stats->rx_crc_errors = old_stats->rx_crc_errors +
8183                 calc_crc_errors(tp);
8184
8185         stats->rx_missed_errors = old_stats->rx_missed_errors +
8186                 get_stat64(&hw_stats->rx_discards);
8187
8188         return stats;
8189 }
8190
8191 static inline u32 calc_crc(unsigned char *buf, int len)
8192 {
8193         u32 reg;
8194         u32 tmp;
8195         int j, k;
8196
8197         reg = 0xffffffff;
8198
8199         for (j = 0; j < len; j++) {
8200                 reg ^= buf[j];
8201
8202                 for (k = 0; k < 8; k++) {
8203                         tmp = reg & 0x01;
8204
8205                         reg >>= 1;
8206
8207                         if (tmp) {
8208                                 reg ^= 0xedb88320;
8209                         }
8210                 }
8211         }
8212
8213         return ~reg;
8214 }
8215
8216 static void tg3_set_multi(struct tg3 *tp, unsigned int accept_all)
8217 {
8218         /* accept or reject all multicast frames */
8219         tw32(MAC_HASH_REG_0, accept_all ? 0xffffffff : 0);
8220         tw32(MAC_HASH_REG_1, accept_all ? 0xffffffff : 0);
8221         tw32(MAC_HASH_REG_2, accept_all ? 0xffffffff : 0);
8222         tw32(MAC_HASH_REG_3, accept_all ? 0xffffffff : 0);
8223 }
8224
8225 static void __tg3_set_rx_mode(struct net_device *dev)
8226 {
8227         struct tg3 *tp = netdev_priv(dev);
8228         u32 rx_mode;
8229
8230         rx_mode = tp->rx_mode & ~(RX_MODE_PROMISC |
8231                                   RX_MODE_KEEP_VLAN_TAG);
8232
8233         /* When ASF is in use, we always keep the RX_MODE_KEEP_VLAN_TAG
8234          * flag clear.
8235          */
8236 #if TG3_VLAN_TAG_USED
8237         if (!tp->vlgrp &&
8238             !(tp->tg3_flags & TG3_FLAG_ENABLE_ASF))
8239                 rx_mode |= RX_MODE_KEEP_VLAN_TAG;
8240 #else
8241         /* By definition, VLAN is disabled always in this
8242          * case.
8243          */
8244         if (!(tp->tg3_flags & TG3_FLAG_ENABLE_ASF))
8245                 rx_mode |= RX_MODE_KEEP_VLAN_TAG;
8246 #endif
8247
8248         if (dev->flags & IFF_PROMISC) {
8249                 /* Promiscuous mode. */
8250                 rx_mode |= RX_MODE_PROMISC;
8251         } else if (dev->flags & IFF_ALLMULTI) {
8252                 /* Accept all multicast. */
8253                 tg3_set_multi (tp, 1);
8254         } else if (dev->mc_count < 1) {
8255                 /* Reject all multicast. */
8256                 tg3_set_multi (tp, 0);
8257         } else {
8258                 /* Accept one or more multicast(s). */
8259                 struct dev_mc_list *mclist;
8260                 unsigned int i;
8261                 u32 mc_filter[4] = { 0, };
8262                 u32 regidx;
8263                 u32 bit;
8264                 u32 crc;
8265
8266                 for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count;
8267                      i++, mclist = mclist->next) {
8268
8269                         crc = calc_crc (mclist->dmi_addr, ETH_ALEN);
8270                         bit = ~crc & 0x7f;
8271                         regidx = (bit & 0x60) >> 5;
8272                         bit &= 0x1f;
8273                         mc_filter[regidx] |= (1 << bit);
8274                 }
8275
8276                 tw32(MAC_HASH_REG_0, mc_filter[0]);
8277                 tw32(MAC_HASH_REG_1, mc_filter[1]);
8278                 tw32(MAC_HASH_REG_2, mc_filter[2]);
8279                 tw32(MAC_HASH_REG_3, mc_filter[3]);
8280         }
8281
8282         if (rx_mode != tp->rx_mode) {
8283                 tp->rx_mode = rx_mode;
8284                 tw32_f(MAC_RX_MODE, rx_mode);
8285                 udelay(10);
8286         }
8287 }
8288
8289 static void tg3_set_rx_mode(struct net_device *dev)
8290 {
8291         struct tg3 *tp = netdev_priv(dev);
8292
8293         if (!netif_running(dev))
8294                 return;
8295
8296         tg3_full_lock(tp, 0);
8297         __tg3_set_rx_mode(dev);
8298         tg3_full_unlock(tp);
8299 }
8300
8301 #define TG3_REGDUMP_LEN         (32 * 1024)
8302
8303 static int tg3_get_regs_len(struct net_device *dev)
8304 {
8305         return TG3_REGDUMP_LEN;
8306 }
8307
8308 static void tg3_get_regs(struct net_device *dev,
8309                 struct ethtool_regs *regs, void *_p)
8310 {
8311         u32 *p = _p;
8312         struct tg3 *tp = netdev_priv(dev);
8313         u8 *orig_p = _p;
8314         int i;
8315
8316         regs->version = 0;
8317
8318         memset(p, 0, TG3_REGDUMP_LEN);
8319
8320         if (tp->link_config.phy_is_low_power)
8321                 return;
8322
8323         tg3_full_lock(tp, 0);
8324
8325 #define __GET_REG32(reg)        (*(p)++ = tr32(reg))
8326 #define GET_REG32_LOOP(base,len)                \
8327 do {    p = (u32 *)(orig_p + (base));           \
8328         for (i = 0; i < len; i += 4)            \
8329                 __GET_REG32((base) + i);        \
8330 } while (0)
8331 #define GET_REG32_1(reg)                        \
8332 do {    p = (u32 *)(orig_p + (reg));            \
8333         __GET_REG32((reg));                     \
8334 } while (0)
8335
8336         GET_REG32_LOOP(TG3PCI_VENDOR, 0xb0);
8337         GET_REG32_LOOP(MAILBOX_INTERRUPT_0, 0x200);
8338         GET_REG32_LOOP(MAC_MODE, 0x4f0);
8339         GET_REG32_LOOP(SNDDATAI_MODE, 0xe0);
8340         GET_REG32_1(SNDDATAC_MODE);
8341         GET_REG32_LOOP(SNDBDS_MODE, 0x80);
8342         GET_REG32_LOOP(SNDBDI_MODE, 0x48);
8343         GET_REG32_1(SNDBDC_MODE);
8344         GET_REG32_LOOP(RCVLPC_MODE, 0x20);
8345         GET_REG32_LOOP(RCVLPC_SELLST_BASE, 0x15c);
8346         GET_REG32_LOOP(RCVDBDI_MODE, 0x0c);
8347         GET_REG32_LOOP(RCVDBDI_JUMBO_BD, 0x3c);
8348         GET_REG32_LOOP(RCVDBDI_BD_PROD_IDX_0, 0x44);
8349         GET_REG32_1(RCVDCC_MODE);
8350         GET_REG32_LOOP(RCVBDI_MODE, 0x20);
8351         GET_REG32_LOOP(RCVCC_MODE, 0x14);
8352         GET_REG32_LOOP(RCVLSC_MODE, 0x08);
8353         GET_REG32_1(MBFREE_MODE);
8354         GET_REG32_LOOP(HOSTCC_MODE, 0x100);
8355         GET_REG32_LOOP(MEMARB_MODE, 0x10);
8356         GET_REG32_LOOP(BUFMGR_MODE, 0x58);
8357         GET_REG32_LOOP(RDMAC_MODE, 0x08);
8358         GET_REG32_LOOP(WDMAC_MODE, 0x08);
8359         GET_REG32_1(RX_CPU_MODE);
8360         GET_REG32_1(RX_CPU_STATE);
8361         GET_REG32_1(RX_CPU_PGMCTR);
8362         GET_REG32_1(RX_CPU_HWBKPT);
8363         GET_REG32_1(TX_CPU_MODE);
8364         GET_REG32_1(TX_CPU_STATE);
8365         GET_REG32_1(TX_CPU_PGMCTR);
8366         GET_REG32_LOOP(GRCMBOX_INTERRUPT_0, 0x110);
8367         GET_REG32_LOOP(FTQ_RESET, 0x120);
8368         GET_REG32_LOOP(MSGINT_MODE, 0x0c);
8369         GET_REG32_1(DMAC_MODE);
8370         GET_REG32_LOOP(GRC_MODE, 0x4c);
8371         if (tp->tg3_flags & TG3_FLAG_NVRAM)
8372                 GET_REG32_LOOP(NVRAM_CMD, 0x24);
8373
8374 #undef __GET_REG32
8375 #undef GET_REG32_LOOP
8376 #undef GET_REG32_1
8377
8378         tg3_full_unlock(tp);
8379 }
8380
8381 static int tg3_get_eeprom_len(struct net_device *dev)
8382 {
8383         struct tg3 *tp = netdev_priv(dev);
8384
8385         return tp->nvram_size;
8386 }
8387
8388 static int tg3_nvram_read(struct tg3 *tp, u32 offset, u32 *val);
8389 static int tg3_nvram_read_le(struct tg3 *tp, u32 offset, __le32 *val);
8390 static int tg3_nvram_read_swab(struct tg3 *tp, u32 offset, u32 *val);
8391
8392 static int tg3_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, u8 *data)
8393 {
8394         struct tg3 *tp = netdev_priv(dev);
8395         int ret;
8396         u8  *pd;
8397         u32 i, offset, len, b_offset, b_count;
8398         __le32 val;
8399
8400         if (tp->link_config.phy_is_low_power)
8401                 return -EAGAIN;
8402
8403         offset = eeprom->offset;
8404         len = eeprom->len;
8405         eeprom->len = 0;
8406
8407         eeprom->magic = TG3_EEPROM_MAGIC;
8408
8409         if (offset & 3) {
8410                 /* adjustments to start on required 4 byte boundary */
8411                 b_offset = offset & 3;
8412                 b_count = 4 - b_offset;
8413                 if (b_count > len) {
8414                         /* i.e. offset=1 len=2 */
8415                         b_count = len;
8416                 }
8417                 ret = tg3_nvram_read_le(tp, offset-b_offset, &val);
8418                 if (ret)
8419                         return ret;
8420                 memcpy(data, ((char*)&val) + b_offset, b_count);
8421                 len -= b_count;
8422                 offset += b_count;
8423                 eeprom->len += b_count;
8424         }
8425
8426         /* read bytes upto the last 4 byte boundary */
8427         pd = &data[eeprom->len];
8428         for (i = 0; i < (len - (len & 3)); i += 4) {
8429                 ret = tg3_nvram_read_le(tp, offset + i, &val);
8430                 if (ret) {
8431                         eeprom->len += i;
8432                         return ret;
8433                 }
8434                 memcpy(pd + i, &val, 4);
8435         }
8436         eeprom->len += i;
8437
8438         if (len & 3) {
8439                 /* read last bytes not ending on 4 byte boundary */
8440                 pd = &data[eeprom->len];
8441                 b_count = len & 3;
8442                 b_offset = offset + len - b_count;
8443                 ret = tg3_nvram_read_le(tp, b_offset, &val);
8444                 if (ret)
8445                         return ret;
8446                 memcpy(pd, &val, b_count);
8447                 eeprom->len += b_count;
8448         }
8449         return 0;
8450 }
8451
8452 static int tg3_nvram_write_block(struct tg3 *tp, u32 offset, u32 len, u8 *buf);
8453
8454 static int tg3_set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, u8 *data)
8455 {
8456         struct tg3 *tp = netdev_priv(dev);
8457         int ret;
8458         u32 offset, len, b_offset, odd_len;
8459         u8 *buf;
8460         __le32 start, end;
8461
8462         if (tp->link_config.phy_is_low_power)
8463                 return -EAGAIN;
8464
8465         if (eeprom->magic != TG3_EEPROM_MAGIC)
8466                 return -EINVAL;
8467
8468         offset = eeprom->offset;
8469         len = eeprom->len;
8470
8471         if ((b_offset = (offset & 3))) {
8472                 /* adjustments to start on required 4 byte boundary */
8473                 ret = tg3_nvram_read_le(tp, offset-b_offset, &start);
8474                 if (ret)
8475                         return ret;
8476                 len += b_offset;
8477                 offset &= ~3;
8478                 if (len < 4)
8479                         len = 4;
8480         }
8481
8482         odd_len = 0;
8483         if (len & 3) {
8484                 /* adjustments to end on required 4 byte boundary */
8485                 odd_len = 1;
8486                 len = (len + 3) & ~3;
8487                 ret = tg3_nvram_read_le(tp, offset+len-4, &end);
8488                 if (ret)
8489                         return ret;
8490         }
8491
8492         buf = data;
8493         if (b_offset || odd_len) {
8494                 buf = kmalloc(len, GFP_KERNEL);
8495                 if (!buf)
8496                         return -ENOMEM;
8497                 if (b_offset)
8498                         memcpy(buf, &start, 4);
8499                 if (odd_len)
8500                         memcpy(buf+len-4, &end, 4);
8501                 memcpy(buf + b_offset, data, eeprom->len);
8502         }
8503
8504         ret = tg3_nvram_write_block(tp, offset, len, buf);
8505
8506         if (buf != data)
8507                 kfree(buf);
8508
8509         return ret;
8510 }
8511
8512 static int tg3_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
8513 {
8514         struct tg3 *tp = netdev_priv(dev);
8515
8516         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
8517                 if (!(tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED))
8518                         return -EAGAIN;
8519                 return phy_ethtool_gset(tp->mdio_bus->phy_map[PHY_ADDR], cmd);
8520         }
8521
8522         cmd->supported = (SUPPORTED_Autoneg);
8523
8524         if (!(tp->tg3_flags & TG3_FLAG_10_100_ONLY))
8525                 cmd->supported |= (SUPPORTED_1000baseT_Half |
8526                                    SUPPORTED_1000baseT_Full);
8527
8528         if (!(tp->tg3_flags2 & TG3_FLG2_ANY_SERDES)) {
8529                 cmd->supported |= (SUPPORTED_100baseT_Half |
8530                                   SUPPORTED_100baseT_Full |
8531                                   SUPPORTED_10baseT_Half |
8532                                   SUPPORTED_10baseT_Full |
8533                                   SUPPORTED_TP);
8534                 cmd->port = PORT_TP;
8535         } else {
8536                 cmd->supported |= SUPPORTED_FIBRE;
8537                 cmd->port = PORT_FIBRE;
8538         }
8539
8540         cmd->advertising = tp->link_config.advertising;
8541         if (netif_running(dev)) {
8542                 cmd->speed = tp->link_config.active_speed;
8543                 cmd->duplex = tp->link_config.active_duplex;
8544         }
8545         cmd->phy_address = PHY_ADDR;
8546         cmd->transceiver = 0;
8547         cmd->autoneg = tp->link_config.autoneg;
8548         cmd->maxtxpkt = 0;
8549         cmd->maxrxpkt = 0;
8550         return 0;
8551 }
8552
8553 static int tg3_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
8554 {
8555         struct tg3 *tp = netdev_priv(dev);
8556
8557         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
8558                 if (!(tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED))
8559                         return -EAGAIN;
8560                 return phy_ethtool_sset(tp->mdio_bus->phy_map[PHY_ADDR], cmd);
8561         }
8562
8563         if (tp->tg3_flags2 & TG3_FLG2_ANY_SERDES) {
8564                 /* These are the only valid advertisement bits allowed.  */
8565                 if (cmd->autoneg == AUTONEG_ENABLE &&
8566                     (cmd->advertising & ~(ADVERTISED_1000baseT_Half |
8567                                           ADVERTISED_1000baseT_Full |
8568                                           ADVERTISED_Autoneg |
8569                                           ADVERTISED_FIBRE)))
8570                         return -EINVAL;
8571                 /* Fiber can only do SPEED_1000.  */
8572                 else if ((cmd->autoneg != AUTONEG_ENABLE) &&
8573                          (cmd->speed != SPEED_1000))
8574                         return -EINVAL;
8575         /* Copper cannot force SPEED_1000.  */
8576         } else if ((cmd->autoneg != AUTONEG_ENABLE) &&
8577                    (cmd->speed == SPEED_1000))
8578                 return -EINVAL;
8579         else if ((cmd->speed == SPEED_1000) &&
8580                  (tp->tg3_flags & TG3_FLAG_10_100_ONLY))
8581                 return -EINVAL;
8582
8583         tg3_full_lock(tp, 0);
8584
8585         tp->link_config.autoneg = cmd->autoneg;
8586         if (cmd->autoneg == AUTONEG_ENABLE) {
8587                 tp->link_config.advertising = (cmd->advertising |
8588                                               ADVERTISED_Autoneg);
8589                 tp->link_config.speed = SPEED_INVALID;
8590                 tp->link_config.duplex = DUPLEX_INVALID;
8591         } else {
8592                 tp->link_config.advertising = 0;
8593                 tp->link_config.speed = cmd->speed;
8594                 tp->link_config.duplex = cmd->duplex;
8595         }
8596
8597         tp->link_config.orig_speed = tp->link_config.speed;
8598         tp->link_config.orig_duplex = tp->link_config.duplex;
8599         tp->link_config.orig_autoneg = tp->link_config.autoneg;
8600
8601         if (netif_running(dev))
8602                 tg3_setup_phy(tp, 1);
8603
8604         tg3_full_unlock(tp);
8605
8606         return 0;
8607 }
8608
8609 static void tg3_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
8610 {
8611         struct tg3 *tp = netdev_priv(dev);
8612
8613         strcpy(info->driver, DRV_MODULE_NAME);
8614         strcpy(info->version, DRV_MODULE_VERSION);
8615         strcpy(info->fw_version, tp->fw_ver);
8616         strcpy(info->bus_info, pci_name(tp->pdev));
8617 }
8618
8619 static void tg3_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
8620 {
8621         struct tg3 *tp = netdev_priv(dev);
8622
8623         if ((tp->tg3_flags & TG3_FLAG_WOL_CAP) &&
8624             device_can_wakeup(&tp->pdev->dev))
8625                 wol->supported = WAKE_MAGIC;
8626         else
8627                 wol->supported = 0;
8628         wol->wolopts = 0;
8629         if ((tp->tg3_flags & TG3_FLAG_WOL_ENABLE) &&
8630             device_can_wakeup(&tp->pdev->dev))
8631                 wol->wolopts = WAKE_MAGIC;
8632         memset(&wol->sopass, 0, sizeof(wol->sopass));
8633 }
8634
8635 static int tg3_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
8636 {
8637         struct tg3 *tp = netdev_priv(dev);
8638         struct device *dp = &tp->pdev->dev;
8639
8640         if (wol->wolopts & ~WAKE_MAGIC)
8641                 return -EINVAL;
8642         if ((wol->wolopts & WAKE_MAGIC) &&
8643             !((tp->tg3_flags & TG3_FLAG_WOL_CAP) && device_can_wakeup(dp)))
8644                 return -EINVAL;
8645
8646         spin_lock_bh(&tp->lock);
8647         if (wol->wolopts & WAKE_MAGIC) {
8648                 tp->tg3_flags |= TG3_FLAG_WOL_ENABLE;
8649                 device_set_wakeup_enable(dp, true);
8650         } else {
8651                 tp->tg3_flags &= ~TG3_FLAG_WOL_ENABLE;
8652                 device_set_wakeup_enable(dp, false);
8653         }
8654         spin_unlock_bh(&tp->lock);
8655
8656         return 0;
8657 }
8658
8659 static u32 tg3_get_msglevel(struct net_device *dev)
8660 {
8661         struct tg3 *tp = netdev_priv(dev);
8662         return tp->msg_enable;
8663 }
8664
8665 static void tg3_set_msglevel(struct net_device *dev, u32 value)
8666 {
8667         struct tg3 *tp = netdev_priv(dev);
8668         tp->msg_enable = value;
8669 }
8670
8671 static int tg3_set_tso(struct net_device *dev, u32 value)
8672 {
8673         struct tg3 *tp = netdev_priv(dev);
8674
8675         if (!(tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE)) {
8676                 if (value)
8677                         return -EINVAL;
8678                 return 0;
8679         }
8680         if ((dev->features & NETIF_F_IPV6_CSUM) &&
8681             (tp->tg3_flags2 & TG3_FLG2_HW_TSO_2)) {
8682                 if (value) {
8683                         dev->features |= NETIF_F_TSO6;
8684                         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
8685                             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 &&
8686                              GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5784_AX) ||
8687                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
8688                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
8689                                 dev->features |= NETIF_F_TSO_ECN;
8690                 } else
8691                         dev->features &= ~(NETIF_F_TSO6 | NETIF_F_TSO_ECN);
8692         }
8693         return ethtool_op_set_tso(dev, value);
8694 }
8695
8696 static int tg3_nway_reset(struct net_device *dev)
8697 {
8698         struct tg3 *tp = netdev_priv(dev);
8699         int r;
8700
8701         if (!netif_running(dev))
8702                 return -EAGAIN;
8703
8704         if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES)
8705                 return -EINVAL;
8706
8707         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
8708                 if (!(tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED))
8709                         return -EAGAIN;
8710                 r = phy_start_aneg(tp->mdio_bus->phy_map[PHY_ADDR]);
8711         } else {
8712                 u32 bmcr;
8713
8714                 spin_lock_bh(&tp->lock);
8715                 r = -EINVAL;
8716                 tg3_readphy(tp, MII_BMCR, &bmcr);
8717                 if (!tg3_readphy(tp, MII_BMCR, &bmcr) &&
8718                     ((bmcr & BMCR_ANENABLE) ||
8719                      (tp->tg3_flags2 & TG3_FLG2_PARALLEL_DETECT))) {
8720                         tg3_writephy(tp, MII_BMCR, bmcr | BMCR_ANRESTART |
8721                                                    BMCR_ANENABLE);
8722                         r = 0;
8723                 }
8724                 spin_unlock_bh(&tp->lock);
8725         }
8726
8727         return r;
8728 }
8729
8730 static void tg3_get_ringparam(struct net_device *dev, struct ethtool_ringparam *ering)
8731 {
8732         struct tg3 *tp = netdev_priv(dev);
8733
8734         ering->rx_max_pending = TG3_RX_RING_SIZE - 1;
8735         ering->rx_mini_max_pending = 0;
8736         if (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE)
8737                 ering->rx_jumbo_max_pending = TG3_RX_JUMBO_RING_SIZE - 1;
8738         else
8739                 ering->rx_jumbo_max_pending = 0;
8740
8741         ering->tx_max_pending = TG3_TX_RING_SIZE - 1;
8742
8743         ering->rx_pending = tp->rx_pending;
8744         ering->rx_mini_pending = 0;
8745         if (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE)
8746                 ering->rx_jumbo_pending = tp->rx_jumbo_pending;
8747         else
8748                 ering->rx_jumbo_pending = 0;
8749
8750         ering->tx_pending = tp->tx_pending;
8751 }
8752
8753 static int tg3_set_ringparam(struct net_device *dev, struct ethtool_ringparam *ering)
8754 {
8755         struct tg3 *tp = netdev_priv(dev);
8756         int irq_sync = 0, err = 0;
8757
8758         if ((ering->rx_pending > TG3_RX_RING_SIZE - 1) ||
8759             (ering->rx_jumbo_pending > TG3_RX_JUMBO_RING_SIZE - 1) ||
8760             (ering->tx_pending > TG3_TX_RING_SIZE - 1) ||
8761             (ering->tx_pending <= MAX_SKB_FRAGS) ||
8762             ((tp->tg3_flags2 & TG3_FLG2_TSO_BUG) &&
8763              (ering->tx_pending <= (MAX_SKB_FRAGS * 3))))
8764                 return -EINVAL;
8765
8766         if (netif_running(dev)) {
8767                 tg3_phy_stop(tp);
8768                 tg3_netif_stop(tp);
8769                 irq_sync = 1;
8770         }
8771
8772         tg3_full_lock(tp, irq_sync);
8773
8774         tp->rx_pending = ering->rx_pending;
8775
8776         if ((tp->tg3_flags2 & TG3_FLG2_MAX_RXPEND_64) &&
8777             tp->rx_pending > 63)
8778                 tp->rx_pending = 63;
8779         tp->rx_jumbo_pending = ering->rx_jumbo_pending;
8780         tp->tx_pending = ering->tx_pending;
8781
8782         if (netif_running(dev)) {
8783                 tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
8784                 err = tg3_restart_hw(tp, 1);
8785                 if (!err)
8786                         tg3_netif_start(tp);
8787         }
8788
8789         tg3_full_unlock(tp);
8790
8791         if (irq_sync && !err)
8792                 tg3_phy_start(tp);
8793
8794         return err;
8795 }
8796
8797 static void tg3_get_pauseparam(struct net_device *dev, struct ethtool_pauseparam *epause)
8798 {
8799         struct tg3 *tp = netdev_priv(dev);
8800
8801         epause->autoneg = (tp->tg3_flags & TG3_FLAG_PAUSE_AUTONEG) != 0;
8802
8803         if (tp->link_config.active_flowctrl & FLOW_CTRL_RX)
8804                 epause->rx_pause = 1;
8805         else
8806                 epause->rx_pause = 0;
8807
8808         if (tp->link_config.active_flowctrl & FLOW_CTRL_TX)
8809                 epause->tx_pause = 1;
8810         else
8811                 epause->tx_pause = 0;
8812 }
8813
8814 static int tg3_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam *epause)
8815 {
8816         struct tg3 *tp = netdev_priv(dev);
8817         int err = 0;
8818
8819         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
8820                 if (!(tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED))
8821                         return -EAGAIN;
8822
8823                 if (epause->autoneg) {
8824                         u32 newadv;
8825                         struct phy_device *phydev;
8826
8827                         phydev = tp->mdio_bus->phy_map[PHY_ADDR];
8828
8829                         if (epause->rx_pause) {
8830                                 if (epause->tx_pause)
8831                                         newadv = ADVERTISED_Pause;
8832                                 else
8833                                         newadv = ADVERTISED_Pause |
8834                                                  ADVERTISED_Asym_Pause;
8835                         } else if (epause->tx_pause) {
8836                                 newadv = ADVERTISED_Asym_Pause;
8837                         } else
8838                                 newadv = 0;
8839
8840                         if (tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED) {
8841                                 u32 oldadv = phydev->advertising &
8842                                              (ADVERTISED_Pause |
8843                                               ADVERTISED_Asym_Pause);
8844                                 if (oldadv != newadv) {
8845                                         phydev->advertising &=
8846                                                 ~(ADVERTISED_Pause |
8847                                                   ADVERTISED_Asym_Pause);
8848                                         phydev->advertising |= newadv;
8849                                         err = phy_start_aneg(phydev);
8850                                 }
8851                         } else {
8852                                 tp->link_config.advertising &=
8853                                                 ~(ADVERTISED_Pause |
8854                                                   ADVERTISED_Asym_Pause);
8855                                 tp->link_config.advertising |= newadv;
8856                         }
8857                 } else {
8858                         if (epause->rx_pause)
8859                                 tp->link_config.flowctrl |= FLOW_CTRL_RX;
8860                         else
8861                                 tp->link_config.flowctrl &= ~FLOW_CTRL_RX;
8862
8863                         if (epause->tx_pause)
8864                                 tp->link_config.flowctrl |= FLOW_CTRL_TX;
8865                         else
8866                                 tp->link_config.flowctrl &= ~FLOW_CTRL_TX;
8867
8868                         if (netif_running(dev))
8869                                 tg3_setup_flow_control(tp, 0, 0);
8870                 }
8871         } else {
8872                 int irq_sync = 0;
8873
8874                 if (netif_running(dev)) {
8875                         tg3_netif_stop(tp);
8876                         irq_sync = 1;
8877                 }
8878
8879                 tg3_full_lock(tp, irq_sync);
8880
8881                 if (epause->autoneg)
8882                         tp->tg3_flags |= TG3_FLAG_PAUSE_AUTONEG;
8883                 else
8884                         tp->tg3_flags &= ~TG3_FLAG_PAUSE_AUTONEG;
8885                 if (epause->rx_pause)
8886                         tp->link_config.flowctrl |= FLOW_CTRL_RX;
8887                 else
8888                         tp->link_config.flowctrl &= ~FLOW_CTRL_RX;
8889                 if (epause->tx_pause)
8890                         tp->link_config.flowctrl |= FLOW_CTRL_TX;
8891                 else
8892                         tp->link_config.flowctrl &= ~FLOW_CTRL_TX;
8893
8894                 if (netif_running(dev)) {
8895                         tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
8896                         err = tg3_restart_hw(tp, 1);
8897                         if (!err)
8898                                 tg3_netif_start(tp);
8899                 }
8900
8901                 tg3_full_unlock(tp);
8902         }
8903
8904         return err;
8905 }
8906
8907 static u32 tg3_get_rx_csum(struct net_device *dev)
8908 {
8909         struct tg3 *tp = netdev_priv(dev);
8910         return (tp->tg3_flags & TG3_FLAG_RX_CHECKSUMS) != 0;
8911 }
8912
8913 static int tg3_set_rx_csum(struct net_device *dev, u32 data)
8914 {
8915         struct tg3 *tp = netdev_priv(dev);
8916
8917         if (tp->tg3_flags & TG3_FLAG_BROKEN_CHECKSUMS) {
8918                 if (data != 0)
8919                         return -EINVAL;
8920                 return 0;
8921         }
8922
8923         spin_lock_bh(&tp->lock);
8924         if (data)
8925                 tp->tg3_flags |= TG3_FLAG_RX_CHECKSUMS;
8926         else
8927                 tp->tg3_flags &= ~TG3_FLAG_RX_CHECKSUMS;
8928         spin_unlock_bh(&tp->lock);
8929
8930         return 0;
8931 }
8932
8933 static int tg3_set_tx_csum(struct net_device *dev, u32 data)
8934 {
8935         struct tg3 *tp = netdev_priv(dev);
8936
8937         if (tp->tg3_flags & TG3_FLAG_BROKEN_CHECKSUMS) {
8938                 if (data != 0)
8939                         return -EINVAL;
8940                 return 0;
8941         }
8942
8943         if (tp->tg3_flags3 & TG3_FLG3_5755_PLUS)
8944                 ethtool_op_set_tx_ipv6_csum(dev, data);
8945         else
8946                 ethtool_op_set_tx_csum(dev, data);
8947
8948         return 0;
8949 }
8950
8951 static int tg3_get_sset_count (struct net_device *dev, int sset)
8952 {
8953         switch (sset) {
8954         case ETH_SS_TEST:
8955                 return TG3_NUM_TEST;
8956         case ETH_SS_STATS:
8957                 return TG3_NUM_STATS;
8958         default:
8959                 return -EOPNOTSUPP;
8960         }
8961 }
8962
8963 static void tg3_get_strings (struct net_device *dev, u32 stringset, u8 *buf)
8964 {
8965         switch (stringset) {
8966         case ETH_SS_STATS:
8967                 memcpy(buf, &ethtool_stats_keys, sizeof(ethtool_stats_keys));
8968                 break;
8969         case ETH_SS_TEST:
8970                 memcpy(buf, &ethtool_test_keys, sizeof(ethtool_test_keys));
8971                 break;
8972         default:
8973                 WARN_ON(1);     /* we need a WARN() */
8974                 break;
8975         }
8976 }
8977
8978 static int tg3_phys_id(struct net_device *dev, u32 data)
8979 {
8980         struct tg3 *tp = netdev_priv(dev);
8981         int i;
8982
8983         if (!netif_running(tp->dev))
8984                 return -EAGAIN;
8985
8986         if (data == 0)
8987                 data = UINT_MAX / 2;
8988
8989         for (i = 0; i < (data * 2); i++) {
8990                 if ((i % 2) == 0)
8991                         tw32(MAC_LED_CTRL, LED_CTRL_LNKLED_OVERRIDE |
8992                                            LED_CTRL_1000MBPS_ON |
8993                                            LED_CTRL_100MBPS_ON |
8994                                            LED_CTRL_10MBPS_ON |
8995                                            LED_CTRL_TRAFFIC_OVERRIDE |
8996                                            LED_CTRL_TRAFFIC_BLINK |
8997                                            LED_CTRL_TRAFFIC_LED);
8998
8999                 else
9000                         tw32(MAC_LED_CTRL, LED_CTRL_LNKLED_OVERRIDE |
9001                                            LED_CTRL_TRAFFIC_OVERRIDE);
9002
9003                 if (msleep_interruptible(500))
9004                         break;
9005         }
9006         tw32(MAC_LED_CTRL, tp->led_ctrl);
9007         return 0;
9008 }
9009
9010 static void tg3_get_ethtool_stats (struct net_device *dev,
9011                                    struct ethtool_stats *estats, u64 *tmp_stats)
9012 {
9013         struct tg3 *tp = netdev_priv(dev);
9014         memcpy(tmp_stats, tg3_get_estats(tp), sizeof(tp->estats));
9015 }
9016
9017 #define NVRAM_TEST_SIZE 0x100
9018 #define NVRAM_SELFBOOT_FORMAT1_0_SIZE   0x14
9019 #define NVRAM_SELFBOOT_FORMAT1_2_SIZE   0x18
9020 #define NVRAM_SELFBOOT_FORMAT1_3_SIZE   0x1c
9021 #define NVRAM_SELFBOOT_HW_SIZE 0x20
9022 #define NVRAM_SELFBOOT_DATA_SIZE 0x1c
9023
9024 static int tg3_test_nvram(struct tg3 *tp)
9025 {
9026         u32 csum, magic;
9027         __le32 *buf;
9028         int i, j, k, err = 0, size;
9029
9030         if (tg3_nvram_read_swab(tp, 0, &magic) != 0)
9031                 return -EIO;
9032
9033         if (magic == TG3_EEPROM_MAGIC)
9034                 size = NVRAM_TEST_SIZE;
9035         else if ((magic & TG3_EEPROM_MAGIC_FW_MSK) == TG3_EEPROM_MAGIC_FW) {
9036                 if ((magic & TG3_EEPROM_SB_FORMAT_MASK) ==
9037                     TG3_EEPROM_SB_FORMAT_1) {
9038                         switch (magic & TG3_EEPROM_SB_REVISION_MASK) {
9039                         case TG3_EEPROM_SB_REVISION_0:
9040                                 size = NVRAM_SELFBOOT_FORMAT1_0_SIZE;
9041                                 break;
9042                         case TG3_EEPROM_SB_REVISION_2:
9043                                 size = NVRAM_SELFBOOT_FORMAT1_2_SIZE;
9044                                 break;
9045                         case TG3_EEPROM_SB_REVISION_3:
9046                                 size = NVRAM_SELFBOOT_FORMAT1_3_SIZE;
9047                                 break;
9048                         default:
9049                                 return 0;
9050                         }
9051                 } else
9052                         return 0;
9053         } else if ((magic & TG3_EEPROM_MAGIC_HW_MSK) == TG3_EEPROM_MAGIC_HW)
9054                 size = NVRAM_SELFBOOT_HW_SIZE;
9055         else
9056                 return -EIO;
9057
9058         buf = kmalloc(size, GFP_KERNEL);
9059         if (buf == NULL)
9060                 return -ENOMEM;
9061
9062         err = -EIO;
9063         for (i = 0, j = 0; i < size; i += 4, j++) {
9064                 if ((err = tg3_nvram_read_le(tp, i, &buf[j])) != 0)
9065                         break;
9066         }
9067         if (i < size)
9068                 goto out;
9069
9070         /* Selfboot format */
9071         magic = swab32(le32_to_cpu(buf[0]));
9072         if ((magic & TG3_EEPROM_MAGIC_FW_MSK) ==
9073             TG3_EEPROM_MAGIC_FW) {
9074                 u8 *buf8 = (u8 *) buf, csum8 = 0;
9075
9076                 if ((magic & TG3_EEPROM_SB_REVISION_MASK) ==
9077                     TG3_EEPROM_SB_REVISION_2) {
9078                         /* For rev 2, the csum doesn't include the MBA. */
9079                         for (i = 0; i < TG3_EEPROM_SB_F1R2_MBA_OFF; i++)
9080                                 csum8 += buf8[i];
9081                         for (i = TG3_EEPROM_SB_F1R2_MBA_OFF + 4; i < size; i++)
9082                                 csum8 += buf8[i];
9083                 } else {
9084                         for (i = 0; i < size; i++)
9085                                 csum8 += buf8[i];
9086                 }
9087
9088                 if (csum8 == 0) {
9089                         err = 0;
9090                         goto out;
9091                 }
9092
9093                 err = -EIO;
9094                 goto out;
9095         }
9096
9097         if ((magic & TG3_EEPROM_MAGIC_HW_MSK) ==
9098             TG3_EEPROM_MAGIC_HW) {
9099                 u8 data[NVRAM_SELFBOOT_DATA_SIZE];
9100                 u8 parity[NVRAM_SELFBOOT_DATA_SIZE];
9101                 u8 *buf8 = (u8 *) buf;
9102
9103                 /* Separate the parity bits and the data bytes.  */
9104                 for (i = 0, j = 0, k = 0; i < NVRAM_SELFBOOT_HW_SIZE; i++) {
9105                         if ((i == 0) || (i == 8)) {
9106                                 int l;
9107                                 u8 msk;
9108
9109                                 for (l = 0, msk = 0x80; l < 7; l++, msk >>= 1)
9110                                         parity[k++] = buf8[i] & msk;
9111                                 i++;
9112                         }
9113                         else if (i == 16) {
9114                                 int l;
9115                                 u8 msk;
9116
9117                                 for (l = 0, msk = 0x20; l < 6; l++, msk >>= 1)
9118                                         parity[k++] = buf8[i] & msk;
9119                                 i++;
9120
9121                                 for (l = 0, msk = 0x80; l < 8; l++, msk >>= 1)
9122                                         parity[k++] = buf8[i] & msk;
9123                                 i++;
9124                         }
9125                         data[j++] = buf8[i];
9126                 }
9127
9128                 err = -EIO;
9129                 for (i = 0; i < NVRAM_SELFBOOT_DATA_SIZE; i++) {
9130                         u8 hw8 = hweight8(data[i]);
9131
9132                         if ((hw8 & 0x1) && parity[i])
9133                                 goto out;
9134                         else if (!(hw8 & 0x1) && !parity[i])
9135                                 goto out;
9136                 }
9137                 err = 0;
9138                 goto out;
9139         }
9140
9141         /* Bootstrap checksum at offset 0x10 */
9142         csum = calc_crc((unsigned char *) buf, 0x10);
9143         if(csum != le32_to_cpu(buf[0x10/4]))
9144                 goto out;
9145
9146         /* Manufacturing block starts at offset 0x74, checksum at 0xfc */
9147         csum = calc_crc((unsigned char *) &buf[0x74/4], 0x88);
9148         if (csum != le32_to_cpu(buf[0xfc/4]))
9149                  goto out;
9150
9151         err = 0;
9152
9153 out:
9154         kfree(buf);
9155         return err;
9156 }
9157
9158 #define TG3_SERDES_TIMEOUT_SEC  2
9159 #define TG3_COPPER_TIMEOUT_SEC  6
9160
9161 static int tg3_test_link(struct tg3 *tp)
9162 {
9163         int i, max;
9164
9165         if (!netif_running(tp->dev))
9166                 return -ENODEV;
9167
9168         if (tp->tg3_flags2 & TG3_FLG2_ANY_SERDES)
9169                 max = TG3_SERDES_TIMEOUT_SEC;
9170         else
9171                 max = TG3_COPPER_TIMEOUT_SEC;
9172
9173         for (i = 0; i < max; i++) {
9174                 if (netif_carrier_ok(tp->dev))
9175                         return 0;
9176
9177                 if (msleep_interruptible(1000))
9178                         break;
9179         }
9180
9181         return -EIO;
9182 }
9183
9184 /* Only test the commonly used registers */
9185 static int tg3_test_registers(struct tg3 *tp)
9186 {
9187         int i, is_5705, is_5750;
9188         u32 offset, read_mask, write_mask, val, save_val, read_val;
9189         static struct {
9190                 u16 offset;
9191                 u16 flags;
9192 #define TG3_FL_5705     0x1
9193 #define TG3_FL_NOT_5705 0x2
9194 #define TG3_FL_NOT_5788 0x4
9195 #define TG3_FL_NOT_5750 0x8
9196                 u32 read_mask;
9197                 u32 write_mask;
9198         } reg_tbl[] = {
9199                 /* MAC Control Registers */
9200                 { MAC_MODE, TG3_FL_NOT_5705,
9201                         0x00000000, 0x00ef6f8c },
9202                 { MAC_MODE, TG3_FL_5705,
9203                         0x00000000, 0x01ef6b8c },
9204                 { MAC_STATUS, TG3_FL_NOT_5705,
9205                         0x03800107, 0x00000000 },
9206                 { MAC_STATUS, TG3_FL_5705,
9207                         0x03800100, 0x00000000 },
9208                 { MAC_ADDR_0_HIGH, 0x0000,
9209                         0x00000000, 0x0000ffff },
9210                 { MAC_ADDR_0_LOW, 0x0000,
9211                         0x00000000, 0xffffffff },
9212                 { MAC_RX_MTU_SIZE, 0x0000,
9213                         0x00000000, 0x0000ffff },
9214                 { MAC_TX_MODE, 0x0000,
9215                         0x00000000, 0x00000070 },
9216                 { MAC_TX_LENGTHS, 0x0000,
9217                         0x00000000, 0x00003fff },
9218                 { MAC_RX_MODE, TG3_FL_NOT_5705,
9219                         0x00000000, 0x000007fc },
9220                 { MAC_RX_MODE, TG3_FL_5705,
9221                         0x00000000, 0x000007dc },
9222                 { MAC_HASH_REG_0, 0x0000,
9223                         0x00000000, 0xffffffff },
9224                 { MAC_HASH_REG_1, 0x0000,
9225                         0x00000000, 0xffffffff },
9226                 { MAC_HASH_REG_2, 0x0000,
9227                         0x00000000, 0xffffffff },
9228                 { MAC_HASH_REG_3, 0x0000,
9229                         0x00000000, 0xffffffff },
9230
9231                 /* Receive Data and Receive BD Initiator Control Registers. */
9232                 { RCVDBDI_JUMBO_BD+0, TG3_FL_NOT_5705,
9233                         0x00000000, 0xffffffff },
9234                 { RCVDBDI_JUMBO_BD+4, TG3_FL_NOT_5705,
9235                         0x00000000, 0xffffffff },
9236                 { RCVDBDI_JUMBO_BD+8, TG3_FL_NOT_5705,
9237                         0x00000000, 0x00000003 },
9238                 { RCVDBDI_JUMBO_BD+0xc, TG3_FL_NOT_5705,
9239                         0x00000000, 0xffffffff },
9240                 { RCVDBDI_STD_BD+0, 0x0000,
9241                         0x00000000, 0xffffffff },
9242                 { RCVDBDI_STD_BD+4, 0x0000,
9243                         0x00000000, 0xffffffff },
9244                 { RCVDBDI_STD_BD+8, 0x0000,
9245                         0x00000000, 0xffff0002 },
9246                 { RCVDBDI_STD_BD+0xc, 0x0000,
9247                         0x00000000, 0xffffffff },
9248
9249                 /* Receive BD Initiator Control Registers. */
9250                 { RCVBDI_STD_THRESH, TG3_FL_NOT_5705,
9251                         0x00000000, 0xffffffff },
9252                 { RCVBDI_STD_THRESH, TG3_FL_5705,
9253                         0x00000000, 0x000003ff },
9254                 { RCVBDI_JUMBO_THRESH, TG3_FL_NOT_5705,
9255                         0x00000000, 0xffffffff },
9256
9257                 /* Host Coalescing Control Registers. */
9258                 { HOSTCC_MODE, TG3_FL_NOT_5705,
9259                         0x00000000, 0x00000004 },
9260                 { HOSTCC_MODE, TG3_FL_5705,
9261                         0x00000000, 0x000000f6 },
9262                 { HOSTCC_RXCOL_TICKS, TG3_FL_NOT_5705,
9263                         0x00000000, 0xffffffff },
9264                 { HOSTCC_RXCOL_TICKS, TG3_FL_5705,
9265                         0x00000000, 0x000003ff },
9266                 { HOSTCC_TXCOL_TICKS, TG3_FL_NOT_5705,
9267                         0x00000000, 0xffffffff },
9268                 { HOSTCC_TXCOL_TICKS, TG3_FL_5705,
9269                         0x00000000, 0x000003ff },
9270                 { HOSTCC_RXMAX_FRAMES, TG3_FL_NOT_5705,
9271                         0x00000000, 0xffffffff },
9272                 { HOSTCC_RXMAX_FRAMES, TG3_FL_5705 | TG3_FL_NOT_5788,
9273                         0x00000000, 0x000000ff },
9274                 { HOSTCC_TXMAX_FRAMES, TG3_FL_NOT_5705,
9275                         0x00000000, 0xffffffff },
9276                 { HOSTCC_TXMAX_FRAMES, TG3_FL_5705 | TG3_FL_NOT_5788,
9277                         0x00000000, 0x000000ff },
9278                 { HOSTCC_RXCOAL_TICK_INT, TG3_FL_NOT_5705,
9279                         0x00000000, 0xffffffff },
9280                 { HOSTCC_TXCOAL_TICK_INT, TG3_FL_NOT_5705,
9281                         0x00000000, 0xffffffff },
9282                 { HOSTCC_RXCOAL_MAXF_INT, TG3_FL_NOT_5705,
9283                         0x00000000, 0xffffffff },
9284                 { HOSTCC_RXCOAL_MAXF_INT, TG3_FL_5705 | TG3_FL_NOT_5788,
9285                         0x00000000, 0x000000ff },
9286                 { HOSTCC_TXCOAL_MAXF_INT, TG3_FL_NOT_5705,
9287                         0x00000000, 0xffffffff },
9288                 { HOSTCC_TXCOAL_MAXF_INT, TG3_FL_5705 | TG3_FL_NOT_5788,
9289                         0x00000000, 0x000000ff },
9290                 { HOSTCC_STAT_COAL_TICKS, TG3_FL_NOT_5705,
9291                         0x00000000, 0xffffffff },
9292                 { HOSTCC_STATS_BLK_HOST_ADDR, TG3_FL_NOT_5705,
9293                         0x00000000, 0xffffffff },
9294                 { HOSTCC_STATS_BLK_HOST_ADDR+4, TG3_FL_NOT_5705,
9295                         0x00000000, 0xffffffff },
9296                 { HOSTCC_STATUS_BLK_HOST_ADDR, 0x0000,
9297                         0x00000000, 0xffffffff },
9298                 { HOSTCC_STATUS_BLK_HOST_ADDR+4, 0x0000,
9299                         0x00000000, 0xffffffff },
9300                 { HOSTCC_STATS_BLK_NIC_ADDR, 0x0000,
9301                         0xffffffff, 0x00000000 },
9302                 { HOSTCC_STATUS_BLK_NIC_ADDR, 0x0000,
9303                         0xffffffff, 0x00000000 },
9304
9305                 /* Buffer Manager Control Registers. */
9306                 { BUFMGR_MB_POOL_ADDR, TG3_FL_NOT_5750,
9307                         0x00000000, 0x007fff80 },
9308                 { BUFMGR_MB_POOL_SIZE, TG3_FL_NOT_5750,
9309                         0x00000000, 0x007fffff },
9310                 { BUFMGR_MB_RDMA_LOW_WATER, 0x0000,
9311                         0x00000000, 0x0000003f },
9312                 { BUFMGR_MB_MACRX_LOW_WATER, 0x0000,
9313                         0x00000000, 0x000001ff },
9314                 { BUFMGR_MB_HIGH_WATER, 0x0000,
9315                         0x00000000, 0x000001ff },
9316                 { BUFMGR_DMA_DESC_POOL_ADDR, TG3_FL_NOT_5705,
9317                         0xffffffff, 0x00000000 },
9318                 { BUFMGR_DMA_DESC_POOL_SIZE, TG3_FL_NOT_5705,
9319                         0xffffffff, 0x00000000 },
9320
9321                 /* Mailbox Registers */
9322                 { GRCMBOX_RCVSTD_PROD_IDX+4, 0x0000,
9323                         0x00000000, 0x000001ff },
9324                 { GRCMBOX_RCVJUMBO_PROD_IDX+4, TG3_FL_NOT_5705,
9325                         0x00000000, 0x000001ff },
9326                 { GRCMBOX_RCVRET_CON_IDX_0+4, 0x0000,
9327                         0x00000000, 0x000007ff },
9328                 { GRCMBOX_SNDHOST_PROD_IDX_0+4, 0x0000,
9329                         0x00000000, 0x000001ff },
9330
9331                 { 0xffff, 0x0000, 0x00000000, 0x00000000 },
9332         };
9333
9334         is_5705 = is_5750 = 0;
9335         if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
9336                 is_5705 = 1;
9337                 if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS)
9338                         is_5750 = 1;
9339         }
9340
9341         for (i = 0; reg_tbl[i].offset != 0xffff; i++) {
9342                 if (is_5705 && (reg_tbl[i].flags & TG3_FL_NOT_5705))
9343                         continue;
9344
9345                 if (!is_5705 && (reg_tbl[i].flags & TG3_FL_5705))
9346                         continue;
9347
9348                 if ((tp->tg3_flags2 & TG3_FLG2_IS_5788) &&
9349                     (reg_tbl[i].flags & TG3_FL_NOT_5788))
9350                         continue;
9351
9352                 if (is_5750 && (reg_tbl[i].flags & TG3_FL_NOT_5750))
9353                         continue;
9354
9355                 offset = (u32) reg_tbl[i].offset;
9356                 read_mask = reg_tbl[i].read_mask;
9357                 write_mask = reg_tbl[i].write_mask;
9358
9359                 /* Save the original register content */
9360                 save_val = tr32(offset);
9361
9362                 /* Determine the read-only value. */
9363                 read_val = save_val & read_mask;
9364
9365                 /* Write zero to the register, then make sure the read-only bits
9366                  * are not changed and the read/write bits are all zeros.
9367                  */
9368                 tw32(offset, 0);
9369
9370                 val = tr32(offset);
9371
9372                 /* Test the read-only and read/write bits. */
9373                 if (((val & read_mask) != read_val) || (val & write_mask))
9374                         goto out;
9375
9376                 /* Write ones to all the bits defined by RdMask and WrMask, then
9377                  * make sure the read-only bits are not changed and the
9378                  * read/write bits are all ones.
9379                  */
9380                 tw32(offset, read_mask | write_mask);
9381
9382                 val = tr32(offset);
9383
9384                 /* Test the read-only bits. */
9385                 if ((val & read_mask) != read_val)
9386                         goto out;
9387
9388                 /* Test the read/write bits. */
9389                 if ((val & write_mask) != write_mask)
9390                         goto out;
9391
9392                 tw32(offset, save_val);
9393         }
9394
9395         return 0;
9396
9397 out:
9398         if (netif_msg_hw(tp))
9399                 printk(KERN_ERR PFX "Register test failed at offset %x\n",
9400                        offset);
9401         tw32(offset, save_val);
9402         return -EIO;
9403 }
9404
9405 static int tg3_do_mem_test(struct tg3 *tp, u32 offset, u32 len)
9406 {
9407         static const u32 test_pattern[] = { 0x00000000, 0xffffffff, 0xaa55a55a };
9408         int i;
9409         u32 j;
9410
9411         for (i = 0; i < ARRAY_SIZE(test_pattern); i++) {
9412                 for (j = 0; j < len; j += 4) {
9413                         u32 val;
9414
9415                         tg3_write_mem(tp, offset + j, test_pattern[i]);
9416                         tg3_read_mem(tp, offset + j, &val);
9417                         if (val != test_pattern[i])
9418                                 return -EIO;
9419                 }
9420         }
9421         return 0;
9422 }
9423
9424 static int tg3_test_memory(struct tg3 *tp)
9425 {
9426         static struct mem_entry {
9427                 u32 offset;
9428                 u32 len;
9429         } mem_tbl_570x[] = {
9430                 { 0x00000000, 0x00b50},
9431                 { 0x00002000, 0x1c000},
9432                 { 0xffffffff, 0x00000}
9433         }, mem_tbl_5705[] = {
9434                 { 0x00000100, 0x0000c},
9435                 { 0x00000200, 0x00008},
9436                 { 0x00004000, 0x00800},
9437                 { 0x00006000, 0x01000},
9438                 { 0x00008000, 0x02000},
9439                 { 0x00010000, 0x0e000},
9440                 { 0xffffffff, 0x00000}
9441         }, mem_tbl_5755[] = {
9442                 { 0x00000200, 0x00008},
9443                 { 0x00004000, 0x00800},
9444                 { 0x00006000, 0x00800},
9445                 { 0x00008000, 0x02000},
9446                 { 0x00010000, 0x0c000},
9447                 { 0xffffffff, 0x00000}
9448         }, mem_tbl_5906[] = {
9449                 { 0x00000200, 0x00008},
9450                 { 0x00004000, 0x00400},
9451                 { 0x00006000, 0x00400},
9452                 { 0x00008000, 0x01000},
9453                 { 0x00010000, 0x01000},
9454                 { 0xffffffff, 0x00000}
9455         };
9456         struct mem_entry *mem_tbl;
9457         int err = 0;
9458         int i;
9459
9460         if (tp->tg3_flags3 & TG3_FLG3_5755_PLUS)
9461                 mem_tbl = mem_tbl_5755;
9462         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
9463                 mem_tbl = mem_tbl_5906;
9464         else if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS)
9465                 mem_tbl = mem_tbl_5705;
9466         else
9467                 mem_tbl = mem_tbl_570x;
9468
9469         for (i = 0; mem_tbl[i].offset != 0xffffffff; i++) {
9470                 if ((err = tg3_do_mem_test(tp, mem_tbl[i].offset,
9471                     mem_tbl[i].len)) != 0)
9472                         break;
9473         }
9474
9475         return err;
9476 }
9477
9478 #define TG3_MAC_LOOPBACK        0
9479 #define TG3_PHY_LOOPBACK        1
9480
9481 static int tg3_run_loopback(struct tg3 *tp, int loopback_mode)
9482 {
9483         u32 mac_mode, rx_start_idx, rx_idx, tx_idx, opaque_key;
9484         u32 desc_idx;
9485         struct sk_buff *skb, *rx_skb;
9486         u8 *tx_data;
9487         dma_addr_t map;
9488         int num_pkts, tx_len, rx_len, i, err;
9489         struct tg3_rx_buffer_desc *desc;
9490
9491         if (loopback_mode == TG3_MAC_LOOPBACK) {
9492                 /* HW errata - mac loopback fails in some cases on 5780.
9493                  * Normal traffic and PHY loopback are not affected by
9494                  * errata.
9495                  */
9496                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780)
9497                         return 0;
9498
9499                 mac_mode = (tp->mac_mode & ~MAC_MODE_PORT_MODE_MASK) |
9500                            MAC_MODE_PORT_INT_LPBACK;
9501                 if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
9502                         mac_mode |= MAC_MODE_LINK_POLARITY;
9503                 if (tp->tg3_flags & TG3_FLAG_10_100_ONLY)
9504                         mac_mode |= MAC_MODE_PORT_MODE_MII;
9505                 else
9506                         mac_mode |= MAC_MODE_PORT_MODE_GMII;
9507                 tw32(MAC_MODE, mac_mode);
9508         } else if (loopback_mode == TG3_PHY_LOOPBACK) {
9509                 u32 val;
9510
9511                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
9512                         u32 phytest;
9513
9514                         if (!tg3_readphy(tp, MII_TG3_EPHY_TEST, &phytest)) {
9515                                 u32 phy;
9516
9517                                 tg3_writephy(tp, MII_TG3_EPHY_TEST,
9518                                              phytest | MII_TG3_EPHY_SHADOW_EN);
9519                                 if (!tg3_readphy(tp, 0x1b, &phy))
9520                                         tg3_writephy(tp, 0x1b, phy & ~0x20);
9521                                 tg3_writephy(tp, MII_TG3_EPHY_TEST, phytest);
9522                         }
9523                         val = BMCR_LOOPBACK | BMCR_FULLDPLX | BMCR_SPEED100;
9524                 } else
9525                         val = BMCR_LOOPBACK | BMCR_FULLDPLX | BMCR_SPEED1000;
9526
9527                 tg3_phy_toggle_automdix(tp, 0);
9528
9529                 tg3_writephy(tp, MII_BMCR, val);
9530                 udelay(40);
9531
9532                 mac_mode = tp->mac_mode & ~MAC_MODE_PORT_MODE_MASK;
9533                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
9534                         tg3_writephy(tp, MII_TG3_EPHY_PTEST, 0x1800);
9535                         mac_mode |= MAC_MODE_PORT_MODE_MII;
9536                 } else
9537                         mac_mode |= MAC_MODE_PORT_MODE_GMII;
9538
9539                 /* reset to prevent losing 1st rx packet intermittently */
9540                 if (tp->tg3_flags2 & TG3_FLG2_MII_SERDES) {
9541                         tw32_f(MAC_RX_MODE, RX_MODE_RESET);
9542                         udelay(10);
9543                         tw32_f(MAC_RX_MODE, tp->rx_mode);
9544                 }
9545                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700) {
9546                         if ((tp->phy_id & PHY_ID_MASK) == PHY_ID_BCM5401)
9547                                 mac_mode &= ~MAC_MODE_LINK_POLARITY;
9548                         else if ((tp->phy_id & PHY_ID_MASK) == PHY_ID_BCM5411)
9549                                 mac_mode |= MAC_MODE_LINK_POLARITY;
9550                         tg3_writephy(tp, MII_TG3_EXT_CTRL,
9551                                      MII_TG3_EXT_CTRL_LNK3_LED_MODE);
9552                 }
9553                 tw32(MAC_MODE, mac_mode);
9554         }
9555         else
9556                 return -EINVAL;
9557
9558         err = -EIO;
9559
9560         tx_len = 1514;
9561         skb = netdev_alloc_skb(tp->dev, tx_len);
9562         if (!skb)
9563                 return -ENOMEM;
9564
9565         tx_data = skb_put(skb, tx_len);
9566         memcpy(tx_data, tp->dev->dev_addr, 6);
9567         memset(tx_data + 6, 0x0, 8);
9568
9569         tw32(MAC_RX_MTU_SIZE, tx_len + 4);
9570
9571         for (i = 14; i < tx_len; i++)
9572                 tx_data[i] = (u8) (i & 0xff);
9573
9574         map = pci_map_single(tp->pdev, skb->data, tx_len, PCI_DMA_TODEVICE);
9575
9576         tw32_f(HOSTCC_MODE, tp->coalesce_mode | HOSTCC_MODE_ENABLE |
9577              HOSTCC_MODE_NOW);
9578
9579         udelay(10);
9580
9581         rx_start_idx = tp->hw_status->idx[0].rx_producer;
9582
9583         num_pkts = 0;
9584
9585         tg3_set_txd(tp, tp->tx_prod, map, tx_len, 0, 1);
9586
9587         tp->tx_prod++;
9588         num_pkts++;
9589
9590         tw32_tx_mbox(MAILBOX_SNDHOST_PROD_IDX_0 + TG3_64BIT_REG_LOW,
9591                      tp->tx_prod);
9592         tr32_mailbox(MAILBOX_SNDHOST_PROD_IDX_0 + TG3_64BIT_REG_LOW);
9593
9594         udelay(10);
9595
9596         /* 250 usec to allow enough time on some 10/100 Mbps devices.  */
9597         for (i = 0; i < 25; i++) {
9598                 tw32_f(HOSTCC_MODE, tp->coalesce_mode | HOSTCC_MODE_ENABLE |
9599                        HOSTCC_MODE_NOW);
9600
9601                 udelay(10);
9602
9603                 tx_idx = tp->hw_status->idx[0].tx_consumer;
9604                 rx_idx = tp->hw_status->idx[0].rx_producer;
9605                 if ((tx_idx == tp->tx_prod) &&
9606                     (rx_idx == (rx_start_idx + num_pkts)))
9607                         break;
9608         }
9609
9610         pci_unmap_single(tp->pdev, map, tx_len, PCI_DMA_TODEVICE);
9611         dev_kfree_skb(skb);
9612
9613         if (tx_idx != tp->tx_prod)
9614                 goto out;
9615
9616         if (rx_idx != rx_start_idx + num_pkts)
9617                 goto out;
9618
9619         desc = &tp->rx_rcb[rx_start_idx];
9620         desc_idx = desc->opaque & RXD_OPAQUE_INDEX_MASK;
9621         opaque_key = desc->opaque & RXD_OPAQUE_RING_MASK;
9622         if (opaque_key != RXD_OPAQUE_RING_STD)
9623                 goto out;
9624
9625         if ((desc->err_vlan & RXD_ERR_MASK) != 0 &&
9626             (desc->err_vlan != RXD_ERR_ODD_NIBBLE_RCVD_MII))
9627                 goto out;
9628
9629         rx_len = ((desc->idx_len & RXD_LEN_MASK) >> RXD_LEN_SHIFT) - 4;
9630         if (rx_len != tx_len)
9631                 goto out;
9632
9633         rx_skb = tp->rx_std_buffers[desc_idx].skb;
9634
9635         map = pci_unmap_addr(&tp->rx_std_buffers[desc_idx], mapping);
9636         pci_dma_sync_single_for_cpu(tp->pdev, map, rx_len, PCI_DMA_FROMDEVICE);
9637
9638         for (i = 14; i < tx_len; i++) {
9639                 if (*(rx_skb->data + i) != (u8) (i & 0xff))
9640                         goto out;
9641         }
9642         err = 0;
9643
9644         /* tg3_free_rings will unmap and free the rx_skb */
9645 out:
9646         return err;
9647 }
9648
9649 #define TG3_MAC_LOOPBACK_FAILED         1
9650 #define TG3_PHY_LOOPBACK_FAILED         2
9651 #define TG3_LOOPBACK_FAILED             (TG3_MAC_LOOPBACK_FAILED |      \
9652                                          TG3_PHY_LOOPBACK_FAILED)
9653
9654 static int tg3_test_loopback(struct tg3 *tp)
9655 {
9656         int err = 0;
9657         u32 cpmuctrl = 0;
9658
9659         if (!netif_running(tp->dev))
9660                 return TG3_LOOPBACK_FAILED;
9661
9662         err = tg3_reset_hw(tp, 1);
9663         if (err)
9664                 return TG3_LOOPBACK_FAILED;
9665
9666         /* Turn off gphy autopowerdown. */
9667         if (tp->tg3_flags3 & TG3_FLG3_PHY_ENABLE_APD)
9668                 tg3_phy_toggle_apd(tp, false);
9669
9670         if (tp->tg3_flags & TG3_FLAG_CPMU_PRESENT) {
9671                 int i;
9672                 u32 status;
9673
9674                 tw32(TG3_CPMU_MUTEX_REQ, CPMU_MUTEX_REQ_DRIVER);
9675
9676                 /* Wait for up to 40 microseconds to acquire lock. */
9677                 for (i = 0; i < 4; i++) {
9678                         status = tr32(TG3_CPMU_MUTEX_GNT);
9679                         if (status == CPMU_MUTEX_GNT_DRIVER)
9680                                 break;
9681                         udelay(10);
9682                 }
9683
9684                 if (status != CPMU_MUTEX_GNT_DRIVER)
9685                         return TG3_LOOPBACK_FAILED;
9686
9687                 /* Turn off link-based power management. */
9688                 cpmuctrl = tr32(TG3_CPMU_CTRL);
9689                 tw32(TG3_CPMU_CTRL,
9690                      cpmuctrl & ~(CPMU_CTRL_LINK_SPEED_MODE |
9691                                   CPMU_CTRL_LINK_AWARE_MODE));
9692         }
9693
9694         if (tg3_run_loopback(tp, TG3_MAC_LOOPBACK))
9695                 err |= TG3_MAC_LOOPBACK_FAILED;
9696
9697         if (tp->tg3_flags & TG3_FLAG_CPMU_PRESENT) {
9698                 tw32(TG3_CPMU_CTRL, cpmuctrl);
9699
9700                 /* Release the mutex */
9701                 tw32(TG3_CPMU_MUTEX_GNT, CPMU_MUTEX_GNT_DRIVER);
9702         }
9703
9704         if (!(tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) &&
9705             !(tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB)) {
9706                 if (tg3_run_loopback(tp, TG3_PHY_LOOPBACK))
9707                         err |= TG3_PHY_LOOPBACK_FAILED;
9708         }
9709
9710         /* Re-enable gphy autopowerdown. */
9711         if (tp->tg3_flags3 & TG3_FLG3_PHY_ENABLE_APD)
9712                 tg3_phy_toggle_apd(tp, true);
9713
9714         return err;
9715 }
9716
9717 static void tg3_self_test(struct net_device *dev, struct ethtool_test *etest,
9718                           u64 *data)
9719 {
9720         struct tg3 *tp = netdev_priv(dev);
9721
9722         if (tp->link_config.phy_is_low_power)
9723                 tg3_set_power_state(tp, PCI_D0);
9724
9725         memset(data, 0, sizeof(u64) * TG3_NUM_TEST);
9726
9727         if (tg3_test_nvram(tp) != 0) {
9728                 etest->flags |= ETH_TEST_FL_FAILED;
9729                 data[0] = 1;
9730         }
9731         if (tg3_test_link(tp) != 0) {
9732                 etest->flags |= ETH_TEST_FL_FAILED;
9733                 data[1] = 1;
9734         }
9735         if (etest->flags & ETH_TEST_FL_OFFLINE) {
9736                 int err, err2 = 0, irq_sync = 0;
9737
9738                 if (netif_running(dev)) {
9739                         tg3_phy_stop(tp);
9740                         tg3_netif_stop(tp);
9741                         irq_sync = 1;
9742                 }
9743
9744                 tg3_full_lock(tp, irq_sync);
9745
9746                 tg3_halt(tp, RESET_KIND_SUSPEND, 1);
9747                 err = tg3_nvram_lock(tp);
9748                 tg3_halt_cpu(tp, RX_CPU_BASE);
9749                 if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
9750                         tg3_halt_cpu(tp, TX_CPU_BASE);
9751                 if (!err)
9752                         tg3_nvram_unlock(tp);
9753
9754                 if (tp->tg3_flags2 & TG3_FLG2_MII_SERDES)
9755                         tg3_phy_reset(tp);
9756
9757                 if (tg3_test_registers(tp) != 0) {
9758                         etest->flags |= ETH_TEST_FL_FAILED;
9759                         data[2] = 1;
9760                 }
9761                 if (tg3_test_memory(tp) != 0) {
9762                         etest->flags |= ETH_TEST_FL_FAILED;
9763                         data[3] = 1;
9764                 }
9765                 if ((data[4] = tg3_test_loopback(tp)) != 0)
9766                         etest->flags |= ETH_TEST_FL_FAILED;
9767
9768                 tg3_full_unlock(tp);
9769
9770                 if (tg3_test_interrupt(tp) != 0) {
9771                         etest->flags |= ETH_TEST_FL_FAILED;
9772                         data[5] = 1;
9773                 }
9774
9775                 tg3_full_lock(tp, 0);
9776
9777                 tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
9778                 if (netif_running(dev)) {
9779                         tp->tg3_flags |= TG3_FLAG_INIT_COMPLETE;
9780                         err2 = tg3_restart_hw(tp, 1);
9781                         if (!err2)
9782                                 tg3_netif_start(tp);
9783                 }
9784
9785                 tg3_full_unlock(tp);
9786
9787                 if (irq_sync && !err2)
9788                         tg3_phy_start(tp);
9789         }
9790         if (tp->link_config.phy_is_low_power)
9791                 tg3_set_power_state(tp, PCI_D3hot);
9792
9793 }
9794
9795 static int tg3_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
9796 {
9797         struct mii_ioctl_data *data = if_mii(ifr);
9798         struct tg3 *tp = netdev_priv(dev);
9799         int err;
9800
9801         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
9802                 if (!(tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED))
9803                         return -EAGAIN;
9804                 return phy_mii_ioctl(tp->mdio_bus->phy_map[PHY_ADDR], data, cmd);
9805         }
9806
9807         switch(cmd) {
9808         case SIOCGMIIPHY:
9809                 data->phy_id = PHY_ADDR;
9810
9811                 /* fallthru */
9812         case SIOCGMIIREG: {
9813                 u32 mii_regval;
9814
9815                 if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES)
9816                         break;                  /* We have no PHY */
9817
9818                 if (tp->link_config.phy_is_low_power)
9819                         return -EAGAIN;
9820
9821                 spin_lock_bh(&tp->lock);
9822                 err = tg3_readphy(tp, data->reg_num & 0x1f, &mii_regval);
9823                 spin_unlock_bh(&tp->lock);
9824
9825                 data->val_out = mii_regval;
9826
9827                 return err;
9828         }
9829
9830         case SIOCSMIIREG:
9831                 if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES)
9832                         break;                  /* We have no PHY */
9833
9834                 if (!capable(CAP_NET_ADMIN))
9835                         return -EPERM;
9836
9837                 if (tp->link_config.phy_is_low_power)
9838                         return -EAGAIN;
9839
9840                 spin_lock_bh(&tp->lock);
9841                 err = tg3_writephy(tp, data->reg_num & 0x1f, data->val_in);
9842                 spin_unlock_bh(&tp->lock);
9843
9844                 return err;
9845
9846         default:
9847                 /* do nothing */
9848                 break;
9849         }
9850         return -EOPNOTSUPP;
9851 }
9852
9853 #if TG3_VLAN_TAG_USED
9854 static void tg3_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
9855 {
9856         struct tg3 *tp = netdev_priv(dev);
9857
9858         if (netif_running(dev))
9859                 tg3_netif_stop(tp);
9860
9861         tg3_full_lock(tp, 0);
9862
9863         tp->vlgrp = grp;
9864
9865         /* Update RX_MODE_KEEP_VLAN_TAG bit in RX_MODE register. */
9866         __tg3_set_rx_mode(dev);
9867
9868         if (netif_running(dev))
9869                 tg3_netif_start(tp);
9870
9871         tg3_full_unlock(tp);
9872 }
9873 #endif
9874
9875 static int tg3_get_coalesce(struct net_device *dev, struct ethtool_coalesce *ec)
9876 {
9877         struct tg3 *tp = netdev_priv(dev);
9878
9879         memcpy(ec, &tp->coal, sizeof(*ec));
9880         return 0;
9881 }
9882
9883 static int tg3_set_coalesce(struct net_device *dev, struct ethtool_coalesce *ec)
9884 {
9885         struct tg3 *tp = netdev_priv(dev);
9886         u32 max_rxcoal_tick_int = 0, max_txcoal_tick_int = 0;
9887         u32 max_stat_coal_ticks = 0, min_stat_coal_ticks = 0;
9888
9889         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
9890                 max_rxcoal_tick_int = MAX_RXCOAL_TICK_INT;
9891                 max_txcoal_tick_int = MAX_TXCOAL_TICK_INT;
9892                 max_stat_coal_ticks = MAX_STAT_COAL_TICKS;
9893                 min_stat_coal_ticks = MIN_STAT_COAL_TICKS;
9894         }
9895
9896         if ((ec->rx_coalesce_usecs > MAX_RXCOL_TICKS) ||
9897             (ec->tx_coalesce_usecs > MAX_TXCOL_TICKS) ||
9898             (ec->rx_max_coalesced_frames > MAX_RXMAX_FRAMES) ||
9899             (ec->tx_max_coalesced_frames > MAX_TXMAX_FRAMES) ||
9900             (ec->rx_coalesce_usecs_irq > max_rxcoal_tick_int) ||
9901             (ec->tx_coalesce_usecs_irq > max_txcoal_tick_int) ||
9902             (ec->rx_max_coalesced_frames_irq > MAX_RXCOAL_MAXF_INT) ||
9903             (ec->tx_max_coalesced_frames_irq > MAX_TXCOAL_MAXF_INT) ||
9904             (ec->stats_block_coalesce_usecs > max_stat_coal_ticks) ||
9905             (ec->stats_block_coalesce_usecs < min_stat_coal_ticks))
9906                 return -EINVAL;
9907
9908         /* No rx interrupts will be generated if both are zero */
9909         if ((ec->rx_coalesce_usecs == 0) &&
9910             (ec->rx_max_coalesced_frames == 0))
9911                 return -EINVAL;
9912
9913         /* No tx interrupts will be generated if both are zero */
9914         if ((ec->tx_coalesce_usecs == 0) &&
9915             (ec->tx_max_coalesced_frames == 0))
9916                 return -EINVAL;
9917
9918         /* Only copy relevant parameters, ignore all others. */
9919         tp->coal.rx_coalesce_usecs = ec->rx_coalesce_usecs;
9920         tp->coal.tx_coalesce_usecs = ec->tx_coalesce_usecs;
9921         tp->coal.rx_max_coalesced_frames = ec->rx_max_coalesced_frames;
9922         tp->coal.tx_max_coalesced_frames = ec->tx_max_coalesced_frames;
9923         tp->coal.rx_coalesce_usecs_irq = ec->rx_coalesce_usecs_irq;
9924         tp->coal.tx_coalesce_usecs_irq = ec->tx_coalesce_usecs_irq;
9925         tp->coal.rx_max_coalesced_frames_irq = ec->rx_max_coalesced_frames_irq;
9926         tp->coal.tx_max_coalesced_frames_irq = ec->tx_max_coalesced_frames_irq;
9927         tp->coal.stats_block_coalesce_usecs = ec->stats_block_coalesce_usecs;
9928
9929         if (netif_running(dev)) {
9930                 tg3_full_lock(tp, 0);
9931                 __tg3_set_coalesce(tp, &tp->coal);
9932                 tg3_full_unlock(tp);
9933         }
9934         return 0;
9935 }
9936
9937 static const struct ethtool_ops tg3_ethtool_ops = {
9938         .get_settings           = tg3_get_settings,
9939         .set_settings           = tg3_set_settings,
9940         .get_drvinfo            = tg3_get_drvinfo,
9941         .get_regs_len           = tg3_get_regs_len,
9942         .get_regs               = tg3_get_regs,
9943         .get_wol                = tg3_get_wol,
9944         .set_wol                = tg3_set_wol,
9945         .get_msglevel           = tg3_get_msglevel,
9946         .set_msglevel           = tg3_set_msglevel,
9947         .nway_reset             = tg3_nway_reset,
9948         .get_link               = ethtool_op_get_link,
9949         .get_eeprom_len         = tg3_get_eeprom_len,
9950         .get_eeprom             = tg3_get_eeprom,
9951         .set_eeprom             = tg3_set_eeprom,
9952         .get_ringparam          = tg3_get_ringparam,
9953         .set_ringparam          = tg3_set_ringparam,
9954         .get_pauseparam         = tg3_get_pauseparam,
9955         .set_pauseparam         = tg3_set_pauseparam,
9956         .get_rx_csum            = tg3_get_rx_csum,
9957         .set_rx_csum            = tg3_set_rx_csum,
9958         .set_tx_csum            = tg3_set_tx_csum,
9959         .set_sg                 = ethtool_op_set_sg,
9960         .set_tso                = tg3_set_tso,
9961         .self_test              = tg3_self_test,
9962         .get_strings            = tg3_get_strings,
9963         .phys_id                = tg3_phys_id,
9964         .get_ethtool_stats      = tg3_get_ethtool_stats,
9965         .get_coalesce           = tg3_get_coalesce,
9966         .set_coalesce           = tg3_set_coalesce,
9967         .get_sset_count         = tg3_get_sset_count,
9968 };
9969
9970 static void __devinit tg3_get_eeprom_size(struct tg3 *tp)
9971 {
9972         u32 cursize, val, magic;
9973
9974         tp->nvram_size = EEPROM_CHIP_SIZE;
9975
9976         if (tg3_nvram_read_swab(tp, 0, &magic) != 0)
9977                 return;
9978
9979         if ((magic != TG3_EEPROM_MAGIC) &&
9980             ((magic & TG3_EEPROM_MAGIC_FW_MSK) != TG3_EEPROM_MAGIC_FW) &&
9981             ((magic & TG3_EEPROM_MAGIC_HW_MSK) != TG3_EEPROM_MAGIC_HW))
9982                 return;
9983
9984         /*
9985          * Size the chip by reading offsets at increasing powers of two.
9986          * When we encounter our validation signature, we know the addressing
9987          * has wrapped around, and thus have our chip size.
9988          */
9989         cursize = 0x10;
9990
9991         while (cursize < tp->nvram_size) {
9992                 if (tg3_nvram_read_swab(tp, cursize, &val) != 0)
9993                         return;
9994
9995                 if (val == magic)
9996                         break;
9997
9998                 cursize <<= 1;
9999         }
10000
10001         tp->nvram_size = cursize;
10002 }
10003
10004 static void __devinit tg3_get_nvram_size(struct tg3 *tp)
10005 {
10006         u32 val;
10007
10008         if (tg3_nvram_read_swab(tp, 0, &val) != 0)
10009                 return;
10010
10011         /* Selfboot format */
10012         if (val != TG3_EEPROM_MAGIC) {
10013                 tg3_get_eeprom_size(tp);
10014                 return;
10015         }
10016
10017         if (tg3_nvram_read(tp, 0xf0, &val) == 0) {
10018                 if (val != 0) {
10019                         tp->nvram_size = (val >> 16) * 1024;
10020                         return;
10021                 }
10022         }
10023         tp->nvram_size = TG3_NVRAM_SIZE_512KB;
10024 }
10025
10026 static void __devinit tg3_get_nvram_info(struct tg3 *tp)
10027 {
10028         u32 nvcfg1;
10029
10030         nvcfg1 = tr32(NVRAM_CFG1);
10031         if (nvcfg1 & NVRAM_CFG1_FLASHIF_ENAB) {
10032                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
10033         }
10034         else {
10035                 nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
10036                 tw32(NVRAM_CFG1, nvcfg1);
10037         }
10038
10039         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750) ||
10040             (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
10041                 switch (nvcfg1 & NVRAM_CFG1_VENDOR_MASK) {
10042                         case FLASH_VENDOR_ATMEL_FLASH_BUFFERED:
10043                                 tp->nvram_jedecnum = JEDEC_ATMEL;
10044                                 tp->nvram_pagesize = ATMEL_AT45DB0X1B_PAGE_SIZE;
10045                                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
10046                                 break;
10047                         case FLASH_VENDOR_ATMEL_FLASH_UNBUFFERED:
10048                                 tp->nvram_jedecnum = JEDEC_ATMEL;
10049                                 tp->nvram_pagesize = ATMEL_AT25F512_PAGE_SIZE;
10050                                 break;
10051                         case FLASH_VENDOR_ATMEL_EEPROM:
10052                                 tp->nvram_jedecnum = JEDEC_ATMEL;
10053                                 tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
10054                                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
10055                                 break;
10056                         case FLASH_VENDOR_ST:
10057                                 tp->nvram_jedecnum = JEDEC_ST;
10058                                 tp->nvram_pagesize = ST_M45PEX0_PAGE_SIZE;
10059                                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
10060                                 break;
10061                         case FLASH_VENDOR_SAIFUN:
10062                                 tp->nvram_jedecnum = JEDEC_SAIFUN;
10063                                 tp->nvram_pagesize = SAIFUN_SA25F0XX_PAGE_SIZE;
10064                                 break;
10065                         case FLASH_VENDOR_SST_SMALL:
10066                         case FLASH_VENDOR_SST_LARGE:
10067                                 tp->nvram_jedecnum = JEDEC_SST;
10068                                 tp->nvram_pagesize = SST_25VF0X0_PAGE_SIZE;
10069                                 break;
10070                 }
10071         }
10072         else {
10073                 tp->nvram_jedecnum = JEDEC_ATMEL;
10074                 tp->nvram_pagesize = ATMEL_AT45DB0X1B_PAGE_SIZE;
10075                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
10076         }
10077 }
10078
10079 static void __devinit tg3_get_5752_nvram_info(struct tg3 *tp)
10080 {
10081         u32 nvcfg1;
10082
10083         nvcfg1 = tr32(NVRAM_CFG1);
10084
10085         /* NVRAM protection for TPM */
10086         if (nvcfg1 & (1 << 27))
10087                 tp->tg3_flags2 |= TG3_FLG2_PROTECTED_NVRAM;
10088
10089         switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
10090                 case FLASH_5752VENDOR_ATMEL_EEPROM_64KHZ:
10091                 case FLASH_5752VENDOR_ATMEL_EEPROM_376KHZ:
10092                         tp->nvram_jedecnum = JEDEC_ATMEL;
10093                         tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
10094                         break;
10095                 case FLASH_5752VENDOR_ATMEL_FLASH_BUFFERED:
10096                         tp->nvram_jedecnum = JEDEC_ATMEL;
10097                         tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
10098                         tp->tg3_flags2 |= TG3_FLG2_FLASH;
10099                         break;
10100                 case FLASH_5752VENDOR_ST_M45PE10:
10101                 case FLASH_5752VENDOR_ST_M45PE20:
10102                 case FLASH_5752VENDOR_ST_M45PE40:
10103                         tp->nvram_jedecnum = JEDEC_ST;
10104                         tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
10105                         tp->tg3_flags2 |= TG3_FLG2_FLASH;
10106                         break;
10107         }
10108
10109         if (tp->tg3_flags2 & TG3_FLG2_FLASH) {
10110                 switch (nvcfg1 & NVRAM_CFG1_5752PAGE_SIZE_MASK) {
10111                         case FLASH_5752PAGE_SIZE_256:
10112                                 tp->nvram_pagesize = 256;
10113                                 break;
10114                         case FLASH_5752PAGE_SIZE_512:
10115                                 tp->nvram_pagesize = 512;
10116                                 break;
10117                         case FLASH_5752PAGE_SIZE_1K:
10118                                 tp->nvram_pagesize = 1024;
10119                                 break;
10120                         case FLASH_5752PAGE_SIZE_2K:
10121                                 tp->nvram_pagesize = 2048;
10122                                 break;
10123                         case FLASH_5752PAGE_SIZE_4K:
10124                                 tp->nvram_pagesize = 4096;
10125                                 break;
10126                         case FLASH_5752PAGE_SIZE_264:
10127                                 tp->nvram_pagesize = 264;
10128                                 break;
10129                 }
10130         }
10131         else {
10132                 /* For eeprom, set pagesize to maximum eeprom size */
10133                 tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
10134
10135                 nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
10136                 tw32(NVRAM_CFG1, nvcfg1);
10137         }
10138 }
10139
10140 static void __devinit tg3_get_5755_nvram_info(struct tg3 *tp)
10141 {
10142         u32 nvcfg1, protect = 0;
10143
10144         nvcfg1 = tr32(NVRAM_CFG1);
10145
10146         /* NVRAM protection for TPM */
10147         if (nvcfg1 & (1 << 27)) {
10148                 tp->tg3_flags2 |= TG3_FLG2_PROTECTED_NVRAM;
10149                 protect = 1;
10150         }
10151
10152         nvcfg1 &= NVRAM_CFG1_5752VENDOR_MASK;
10153         switch (nvcfg1) {
10154                 case FLASH_5755VENDOR_ATMEL_FLASH_1:
10155                 case FLASH_5755VENDOR_ATMEL_FLASH_2:
10156                 case FLASH_5755VENDOR_ATMEL_FLASH_3:
10157                 case FLASH_5755VENDOR_ATMEL_FLASH_5:
10158                         tp->nvram_jedecnum = JEDEC_ATMEL;
10159                         tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
10160                         tp->tg3_flags2 |= TG3_FLG2_FLASH;
10161                         tp->nvram_pagesize = 264;
10162                         if (nvcfg1 == FLASH_5755VENDOR_ATMEL_FLASH_1 ||
10163                             nvcfg1 == FLASH_5755VENDOR_ATMEL_FLASH_5)
10164                                 tp->nvram_size = (protect ? 0x3e200 :
10165                                                   TG3_NVRAM_SIZE_512KB);
10166                         else if (nvcfg1 == FLASH_5755VENDOR_ATMEL_FLASH_2)
10167                                 tp->nvram_size = (protect ? 0x1f200 :
10168                                                   TG3_NVRAM_SIZE_256KB);
10169                         else
10170                                 tp->nvram_size = (protect ? 0x1f200 :
10171                                                   TG3_NVRAM_SIZE_128KB);
10172                         break;
10173                 case FLASH_5752VENDOR_ST_M45PE10:
10174                 case FLASH_5752VENDOR_ST_M45PE20:
10175                 case FLASH_5752VENDOR_ST_M45PE40:
10176                         tp->nvram_jedecnum = JEDEC_ST;
10177                         tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
10178                         tp->tg3_flags2 |= TG3_FLG2_FLASH;
10179                         tp->nvram_pagesize = 256;
10180                         if (nvcfg1 == FLASH_5752VENDOR_ST_M45PE10)
10181                                 tp->nvram_size = (protect ?
10182                                                   TG3_NVRAM_SIZE_64KB :
10183                                                   TG3_NVRAM_SIZE_128KB);
10184                         else if (nvcfg1 == FLASH_5752VENDOR_ST_M45PE20)
10185                                 tp->nvram_size = (protect ?
10186                                                   TG3_NVRAM_SIZE_64KB :
10187                                                   TG3_NVRAM_SIZE_256KB);
10188                         else
10189                                 tp->nvram_size = (protect ?
10190                                                   TG3_NVRAM_SIZE_128KB :
10191                                                   TG3_NVRAM_SIZE_512KB);
10192                         break;
10193         }
10194 }
10195
10196 static void __devinit tg3_get_5787_nvram_info(struct tg3 *tp)
10197 {
10198         u32 nvcfg1;
10199
10200         nvcfg1 = tr32(NVRAM_CFG1);
10201
10202         switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
10203                 case FLASH_5787VENDOR_ATMEL_EEPROM_64KHZ:
10204                 case FLASH_5787VENDOR_ATMEL_EEPROM_376KHZ:
10205                 case FLASH_5787VENDOR_MICRO_EEPROM_64KHZ:
10206                 case FLASH_5787VENDOR_MICRO_EEPROM_376KHZ:
10207                         tp->nvram_jedecnum = JEDEC_ATMEL;
10208                         tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
10209                         tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
10210
10211                         nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
10212                         tw32(NVRAM_CFG1, nvcfg1);
10213                         break;
10214                 case FLASH_5752VENDOR_ATMEL_FLASH_BUFFERED:
10215                 case FLASH_5755VENDOR_ATMEL_FLASH_1:
10216                 case FLASH_5755VENDOR_ATMEL_FLASH_2:
10217                 case FLASH_5755VENDOR_ATMEL_FLASH_3:
10218                         tp->nvram_jedecnum = JEDEC_ATMEL;
10219                         tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
10220                         tp->tg3_flags2 |= TG3_FLG2_FLASH;
10221                         tp->nvram_pagesize = 264;
10222                         break;
10223                 case FLASH_5752VENDOR_ST_M45PE10:
10224                 case FLASH_5752VENDOR_ST_M45PE20:
10225                 case FLASH_5752VENDOR_ST_M45PE40:
10226                         tp->nvram_jedecnum = JEDEC_ST;
10227                         tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
10228                         tp->tg3_flags2 |= TG3_FLG2_FLASH;
10229                         tp->nvram_pagesize = 256;
10230                         break;
10231         }
10232 }
10233
10234 static void __devinit tg3_get_5761_nvram_info(struct tg3 *tp)
10235 {
10236         u32 nvcfg1, protect = 0;
10237
10238         nvcfg1 = tr32(NVRAM_CFG1);
10239
10240         /* NVRAM protection for TPM */
10241         if (nvcfg1 & (1 << 27)) {
10242                 tp->tg3_flags2 |= TG3_FLG2_PROTECTED_NVRAM;
10243                 protect = 1;
10244         }
10245
10246         nvcfg1 &= NVRAM_CFG1_5752VENDOR_MASK;
10247         switch (nvcfg1) {
10248                 case FLASH_5761VENDOR_ATMEL_ADB021D:
10249                 case FLASH_5761VENDOR_ATMEL_ADB041D:
10250                 case FLASH_5761VENDOR_ATMEL_ADB081D:
10251                 case FLASH_5761VENDOR_ATMEL_ADB161D:
10252                 case FLASH_5761VENDOR_ATMEL_MDB021D:
10253                 case FLASH_5761VENDOR_ATMEL_MDB041D:
10254                 case FLASH_5761VENDOR_ATMEL_MDB081D:
10255                 case FLASH_5761VENDOR_ATMEL_MDB161D:
10256                         tp->nvram_jedecnum = JEDEC_ATMEL;
10257                         tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
10258                         tp->tg3_flags2 |= TG3_FLG2_FLASH;
10259                         tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM_ADDR_TRANS;
10260                         tp->nvram_pagesize = 256;
10261                         break;
10262                 case FLASH_5761VENDOR_ST_A_M45PE20:
10263                 case FLASH_5761VENDOR_ST_A_M45PE40:
10264                 case FLASH_5761VENDOR_ST_A_M45PE80:
10265                 case FLASH_5761VENDOR_ST_A_M45PE16:
10266                 case FLASH_5761VENDOR_ST_M_M45PE20:
10267                 case FLASH_5761VENDOR_ST_M_M45PE40:
10268                 case FLASH_5761VENDOR_ST_M_M45PE80:
10269                 case FLASH_5761VENDOR_ST_M_M45PE16:
10270                         tp->nvram_jedecnum = JEDEC_ST;
10271                         tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
10272                         tp->tg3_flags2 |= TG3_FLG2_FLASH;
10273                         tp->nvram_pagesize = 256;
10274                         break;
10275         }
10276
10277         if (protect) {
10278                 tp->nvram_size = tr32(NVRAM_ADDR_LOCKOUT);
10279         } else {
10280                 switch (nvcfg1) {
10281                         case FLASH_5761VENDOR_ATMEL_ADB161D:
10282                         case FLASH_5761VENDOR_ATMEL_MDB161D:
10283                         case FLASH_5761VENDOR_ST_A_M45PE16:
10284                         case FLASH_5761VENDOR_ST_M_M45PE16:
10285                                 tp->nvram_size = TG3_NVRAM_SIZE_2MB;
10286                                 break;
10287                         case FLASH_5761VENDOR_ATMEL_ADB081D:
10288                         case FLASH_5761VENDOR_ATMEL_MDB081D:
10289                         case FLASH_5761VENDOR_ST_A_M45PE80:
10290                         case FLASH_5761VENDOR_ST_M_M45PE80:
10291                                 tp->nvram_size = TG3_NVRAM_SIZE_1MB;
10292                                 break;
10293                         case FLASH_5761VENDOR_ATMEL_ADB041D:
10294                         case FLASH_5761VENDOR_ATMEL_MDB041D:
10295                         case FLASH_5761VENDOR_ST_A_M45PE40:
10296                         case FLASH_5761VENDOR_ST_M_M45PE40:
10297                                 tp->nvram_size = TG3_NVRAM_SIZE_512KB;
10298                                 break;
10299                         case FLASH_5761VENDOR_ATMEL_ADB021D:
10300                         case FLASH_5761VENDOR_ATMEL_MDB021D:
10301                         case FLASH_5761VENDOR_ST_A_M45PE20:
10302                         case FLASH_5761VENDOR_ST_M_M45PE20:
10303                                 tp->nvram_size = TG3_NVRAM_SIZE_256KB;
10304                                 break;
10305                 }
10306         }
10307 }
10308
10309 static void __devinit tg3_get_5906_nvram_info(struct tg3 *tp)
10310 {
10311         tp->nvram_jedecnum = JEDEC_ATMEL;
10312         tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
10313         tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
10314 }
10315
10316 static void __devinit tg3_get_57780_nvram_info(struct tg3 *tp)
10317 {
10318         u32 nvcfg1;
10319
10320         nvcfg1 = tr32(NVRAM_CFG1);
10321
10322         switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
10323         case FLASH_5787VENDOR_ATMEL_EEPROM_376KHZ:
10324         case FLASH_5787VENDOR_MICRO_EEPROM_376KHZ:
10325                 tp->nvram_jedecnum = JEDEC_ATMEL;
10326                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
10327                 tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
10328
10329                 nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
10330                 tw32(NVRAM_CFG1, nvcfg1);
10331                 return;
10332         case FLASH_5752VENDOR_ATMEL_FLASH_BUFFERED:
10333         case FLASH_57780VENDOR_ATMEL_AT45DB011D:
10334         case FLASH_57780VENDOR_ATMEL_AT45DB011B:
10335         case FLASH_57780VENDOR_ATMEL_AT45DB021D:
10336         case FLASH_57780VENDOR_ATMEL_AT45DB021B:
10337         case FLASH_57780VENDOR_ATMEL_AT45DB041D:
10338         case FLASH_57780VENDOR_ATMEL_AT45DB041B:
10339                 tp->nvram_jedecnum = JEDEC_ATMEL;
10340                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
10341                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
10342
10343                 switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
10344                 case FLASH_5752VENDOR_ATMEL_FLASH_BUFFERED:
10345                 case FLASH_57780VENDOR_ATMEL_AT45DB011D:
10346                 case FLASH_57780VENDOR_ATMEL_AT45DB011B:
10347                         tp->nvram_size = TG3_NVRAM_SIZE_128KB;
10348                         break;
10349                 case FLASH_57780VENDOR_ATMEL_AT45DB021D:
10350                 case FLASH_57780VENDOR_ATMEL_AT45DB021B:
10351                         tp->nvram_size = TG3_NVRAM_SIZE_256KB;
10352                         break;
10353                 case FLASH_57780VENDOR_ATMEL_AT45DB041D:
10354                 case FLASH_57780VENDOR_ATMEL_AT45DB041B:
10355                         tp->nvram_size = TG3_NVRAM_SIZE_512KB;
10356                         break;
10357                 }
10358                 break;
10359         case FLASH_5752VENDOR_ST_M45PE10:
10360         case FLASH_5752VENDOR_ST_M45PE20:
10361         case FLASH_5752VENDOR_ST_M45PE40:
10362                 tp->nvram_jedecnum = JEDEC_ST;
10363                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
10364                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
10365
10366                 switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
10367                 case FLASH_5752VENDOR_ST_M45PE10:
10368                         tp->nvram_size = TG3_NVRAM_SIZE_128KB;
10369                         break;
10370                 case FLASH_5752VENDOR_ST_M45PE20:
10371                         tp->nvram_size = TG3_NVRAM_SIZE_256KB;
10372                         break;
10373                 case FLASH_5752VENDOR_ST_M45PE40:
10374                         tp->nvram_size = TG3_NVRAM_SIZE_512KB;
10375                         break;
10376                 }
10377                 break;
10378         default:
10379                 return;
10380         }
10381
10382         switch (nvcfg1 & NVRAM_CFG1_5752PAGE_SIZE_MASK) {
10383         case FLASH_5752PAGE_SIZE_256:
10384                 tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM_ADDR_TRANS;
10385                 tp->nvram_pagesize = 256;
10386                 break;
10387         case FLASH_5752PAGE_SIZE_512:
10388                 tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM_ADDR_TRANS;
10389                 tp->nvram_pagesize = 512;
10390                 break;
10391         case FLASH_5752PAGE_SIZE_1K:
10392                 tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM_ADDR_TRANS;
10393                 tp->nvram_pagesize = 1024;
10394                 break;
10395         case FLASH_5752PAGE_SIZE_2K:
10396                 tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM_ADDR_TRANS;
10397                 tp->nvram_pagesize = 2048;
10398                 break;
10399         case FLASH_5752PAGE_SIZE_4K:
10400                 tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM_ADDR_TRANS;
10401                 tp->nvram_pagesize = 4096;
10402                 break;
10403         case FLASH_5752PAGE_SIZE_264:
10404                 tp->nvram_pagesize = 264;
10405                 break;
10406         case FLASH_5752PAGE_SIZE_528:
10407                 tp->nvram_pagesize = 528;
10408                 break;
10409         }
10410 }
10411
10412 /* Chips other than 5700/5701 use the NVRAM for fetching info. */
10413 static void __devinit tg3_nvram_init(struct tg3 *tp)
10414 {
10415         tw32_f(GRC_EEPROM_ADDR,
10416              (EEPROM_ADDR_FSM_RESET |
10417               (EEPROM_DEFAULT_CLOCK_PERIOD <<
10418                EEPROM_ADDR_CLKPERD_SHIFT)));
10419
10420         msleep(1);
10421
10422         /* Enable seeprom accesses. */
10423         tw32_f(GRC_LOCAL_CTRL,
10424              tr32(GRC_LOCAL_CTRL) | GRC_LCLCTRL_AUTO_SEEPROM);
10425         udelay(100);
10426
10427         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700 &&
10428             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701) {
10429                 tp->tg3_flags |= TG3_FLAG_NVRAM;
10430
10431                 if (tg3_nvram_lock(tp)) {
10432                         printk(KERN_WARNING PFX "%s: Cannot get nvarm lock, "
10433                                "tg3_nvram_init failed.\n", tp->dev->name);
10434                         return;
10435                 }
10436                 tg3_enable_nvram_access(tp);
10437
10438                 tp->nvram_size = 0;
10439
10440                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752)
10441                         tg3_get_5752_nvram_info(tp);
10442                 else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755)
10443                         tg3_get_5755_nvram_info(tp);
10444                 else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5787 ||
10445                          GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
10446                          GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785)
10447                         tg3_get_5787_nvram_info(tp);
10448                 else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761)
10449                         tg3_get_5761_nvram_info(tp);
10450                 else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
10451                         tg3_get_5906_nvram_info(tp);
10452                 else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
10453                         tg3_get_57780_nvram_info(tp);
10454                 else
10455                         tg3_get_nvram_info(tp);
10456
10457                 if (tp->nvram_size == 0)
10458                         tg3_get_nvram_size(tp);
10459
10460                 tg3_disable_nvram_access(tp);
10461                 tg3_nvram_unlock(tp);
10462
10463         } else {
10464                 tp->tg3_flags &= ~(TG3_FLAG_NVRAM | TG3_FLAG_NVRAM_BUFFERED);
10465
10466                 tg3_get_eeprom_size(tp);
10467         }
10468 }
10469
10470 static int tg3_nvram_read_using_eeprom(struct tg3 *tp,
10471                                         u32 offset, u32 *val)
10472 {
10473         u32 tmp;
10474         int i;
10475
10476         if (offset > EEPROM_ADDR_ADDR_MASK ||
10477             (offset % 4) != 0)
10478                 return -EINVAL;
10479
10480         tmp = tr32(GRC_EEPROM_ADDR) & ~(EEPROM_ADDR_ADDR_MASK |
10481                                         EEPROM_ADDR_DEVID_MASK |
10482                                         EEPROM_ADDR_READ);
10483         tw32(GRC_EEPROM_ADDR,
10484              tmp |
10485              (0 << EEPROM_ADDR_DEVID_SHIFT) |
10486              ((offset << EEPROM_ADDR_ADDR_SHIFT) &
10487               EEPROM_ADDR_ADDR_MASK) |
10488              EEPROM_ADDR_READ | EEPROM_ADDR_START);
10489
10490         for (i = 0; i < 1000; i++) {
10491                 tmp = tr32(GRC_EEPROM_ADDR);
10492
10493                 if (tmp & EEPROM_ADDR_COMPLETE)
10494                         break;
10495                 msleep(1);
10496         }
10497         if (!(tmp & EEPROM_ADDR_COMPLETE))
10498                 return -EBUSY;
10499
10500         *val = tr32(GRC_EEPROM_DATA);
10501         return 0;
10502 }
10503
10504 #define NVRAM_CMD_TIMEOUT 10000
10505
10506 static int tg3_nvram_exec_cmd(struct tg3 *tp, u32 nvram_cmd)
10507 {
10508         int i;
10509
10510         tw32(NVRAM_CMD, nvram_cmd);
10511         for (i = 0; i < NVRAM_CMD_TIMEOUT; i++) {
10512                 udelay(10);
10513                 if (tr32(NVRAM_CMD) & NVRAM_CMD_DONE) {
10514                         udelay(10);
10515                         break;
10516                 }
10517         }
10518         if (i == NVRAM_CMD_TIMEOUT) {
10519                 return -EBUSY;
10520         }
10521         return 0;
10522 }
10523
10524 static u32 tg3_nvram_phys_addr(struct tg3 *tp, u32 addr)
10525 {
10526         if ((tp->tg3_flags & TG3_FLAG_NVRAM) &&
10527             (tp->tg3_flags & TG3_FLAG_NVRAM_BUFFERED) &&
10528             (tp->tg3_flags2 & TG3_FLG2_FLASH) &&
10529            !(tp->tg3_flags3 & TG3_FLG3_NO_NVRAM_ADDR_TRANS) &&
10530             (tp->nvram_jedecnum == JEDEC_ATMEL))
10531
10532                 addr = ((addr / tp->nvram_pagesize) <<
10533                         ATMEL_AT45DB0X1B_PAGE_POS) +
10534                        (addr % tp->nvram_pagesize);
10535
10536         return addr;
10537 }
10538
10539 static u32 tg3_nvram_logical_addr(struct tg3 *tp, u32 addr)
10540 {
10541         if ((tp->tg3_flags & TG3_FLAG_NVRAM) &&
10542             (tp->tg3_flags & TG3_FLAG_NVRAM_BUFFERED) &&
10543             (tp->tg3_flags2 & TG3_FLG2_FLASH) &&
10544            !(tp->tg3_flags3 & TG3_FLG3_NO_NVRAM_ADDR_TRANS) &&
10545             (tp->nvram_jedecnum == JEDEC_ATMEL))
10546
10547                 addr = ((addr >> ATMEL_AT45DB0X1B_PAGE_POS) *
10548                         tp->nvram_pagesize) +
10549                        (addr & ((1 << ATMEL_AT45DB0X1B_PAGE_POS) - 1));
10550
10551         return addr;
10552 }
10553
10554 static int tg3_nvram_read(struct tg3 *tp, u32 offset, u32 *val)
10555 {
10556         int ret;
10557
10558         if (!(tp->tg3_flags & TG3_FLAG_NVRAM))
10559                 return tg3_nvram_read_using_eeprom(tp, offset, val);
10560
10561         offset = tg3_nvram_phys_addr(tp, offset);
10562
10563         if (offset > NVRAM_ADDR_MSK)
10564                 return -EINVAL;
10565
10566         ret = tg3_nvram_lock(tp);
10567         if (ret)
10568                 return ret;
10569
10570         tg3_enable_nvram_access(tp);
10571
10572         tw32(NVRAM_ADDR, offset);
10573         ret = tg3_nvram_exec_cmd(tp, NVRAM_CMD_RD | NVRAM_CMD_GO |
10574                 NVRAM_CMD_FIRST | NVRAM_CMD_LAST | NVRAM_CMD_DONE);
10575
10576         if (ret == 0)
10577                 *val = swab32(tr32(NVRAM_RDDATA));
10578
10579         tg3_disable_nvram_access(tp);
10580
10581         tg3_nvram_unlock(tp);
10582
10583         return ret;
10584 }
10585
10586 static int tg3_nvram_read_le(struct tg3 *tp, u32 offset, __le32 *val)
10587 {
10588         u32 v;
10589         int res = tg3_nvram_read(tp, offset, &v);
10590         if (!res)
10591                 *val = cpu_to_le32(v);
10592         return res;
10593 }
10594
10595 static int tg3_nvram_read_swab(struct tg3 *tp, u32 offset, u32 *val)
10596 {
10597         int err;
10598         u32 tmp;
10599
10600         err = tg3_nvram_read(tp, offset, &tmp);
10601         *val = swab32(tmp);
10602         return err;
10603 }
10604
10605 static int tg3_nvram_write_block_using_eeprom(struct tg3 *tp,
10606                                     u32 offset, u32 len, u8 *buf)
10607 {
10608         int i, j, rc = 0;
10609         u32 val;
10610
10611         for (i = 0; i < len; i += 4) {
10612                 u32 addr;
10613                 __le32 data;
10614
10615                 addr = offset + i;
10616
10617                 memcpy(&data, buf + i, 4);
10618
10619                 tw32(GRC_EEPROM_DATA, le32_to_cpu(data));
10620
10621                 val = tr32(GRC_EEPROM_ADDR);
10622                 tw32(GRC_EEPROM_ADDR, val | EEPROM_ADDR_COMPLETE);
10623
10624                 val &= ~(EEPROM_ADDR_ADDR_MASK | EEPROM_ADDR_DEVID_MASK |
10625                         EEPROM_ADDR_READ);
10626                 tw32(GRC_EEPROM_ADDR, val |
10627                         (0 << EEPROM_ADDR_DEVID_SHIFT) |
10628                         (addr & EEPROM_ADDR_ADDR_MASK) |
10629                         EEPROM_ADDR_START |
10630                         EEPROM_ADDR_WRITE);
10631
10632                 for (j = 0; j < 1000; j++) {
10633                         val = tr32(GRC_EEPROM_ADDR);
10634
10635                         if (val & EEPROM_ADDR_COMPLETE)
10636                                 break;
10637                         msleep(1);
10638                 }
10639                 if (!(val & EEPROM_ADDR_COMPLETE)) {
10640                         rc = -EBUSY;
10641                         break;
10642                 }
10643         }
10644
10645         return rc;
10646 }
10647
10648 /* offset and length are dword aligned */
10649 static int tg3_nvram_write_block_unbuffered(struct tg3 *tp, u32 offset, u32 len,
10650                 u8 *buf)
10651 {
10652         int ret = 0;
10653         u32 pagesize = tp->nvram_pagesize;
10654         u32 pagemask = pagesize - 1;
10655         u32 nvram_cmd;
10656         u8 *tmp;
10657
10658         tmp = kmalloc(pagesize, GFP_KERNEL);
10659         if (tmp == NULL)
10660                 return -ENOMEM;
10661
10662         while (len) {
10663                 int j;
10664                 u32 phy_addr, page_off, size;
10665
10666                 phy_addr = offset & ~pagemask;
10667
10668                 for (j = 0; j < pagesize; j += 4) {
10669                         if ((ret = tg3_nvram_read_le(tp, phy_addr + j,
10670                                                 (__le32 *) (tmp + j))))
10671                                 break;
10672                 }
10673                 if (ret)
10674                         break;
10675
10676                 page_off = offset & pagemask;
10677                 size = pagesize;
10678                 if (len < size)
10679                         size = len;
10680
10681                 len -= size;
10682
10683                 memcpy(tmp + page_off, buf, size);
10684
10685                 offset = offset + (pagesize - page_off);
10686
10687                 tg3_enable_nvram_access(tp);
10688
10689                 /*
10690                  * Before we can erase the flash page, we need
10691                  * to issue a special "write enable" command.
10692                  */
10693                 nvram_cmd = NVRAM_CMD_WREN | NVRAM_CMD_GO | NVRAM_CMD_DONE;
10694
10695                 if (tg3_nvram_exec_cmd(tp, nvram_cmd))
10696                         break;
10697
10698                 /* Erase the target page */
10699                 tw32(NVRAM_ADDR, phy_addr);
10700
10701                 nvram_cmd = NVRAM_CMD_GO | NVRAM_CMD_DONE | NVRAM_CMD_WR |
10702                         NVRAM_CMD_FIRST | NVRAM_CMD_LAST | NVRAM_CMD_ERASE;
10703
10704                 if (tg3_nvram_exec_cmd(tp, nvram_cmd))
10705                         break;
10706
10707                 /* Issue another write enable to start the write. */
10708                 nvram_cmd = NVRAM_CMD_WREN | NVRAM_CMD_GO | NVRAM_CMD_DONE;
10709
10710                 if (tg3_nvram_exec_cmd(tp, nvram_cmd))
10711                         break;
10712
10713                 for (j = 0; j < pagesize; j += 4) {
10714                         __be32 data;
10715
10716                         data = *((__be32 *) (tmp + j));
10717                         /* swab32(le32_to_cpu(data)), actually */
10718                         tw32(NVRAM_WRDATA, be32_to_cpu(data));
10719
10720                         tw32(NVRAM_ADDR, phy_addr + j);
10721
10722                         nvram_cmd = NVRAM_CMD_GO | NVRAM_CMD_DONE |
10723                                 NVRAM_CMD_WR;
10724
10725                         if (j == 0)
10726                                 nvram_cmd |= NVRAM_CMD_FIRST;
10727                         else if (j == (pagesize - 4))
10728                                 nvram_cmd |= NVRAM_CMD_LAST;
10729
10730                         if ((ret = tg3_nvram_exec_cmd(tp, nvram_cmd)))
10731                                 break;
10732                 }
10733                 if (ret)
10734                         break;
10735         }
10736
10737         nvram_cmd = NVRAM_CMD_WRDI | NVRAM_CMD_GO | NVRAM_CMD_DONE;
10738         tg3_nvram_exec_cmd(tp, nvram_cmd);
10739
10740         kfree(tmp);
10741
10742         return ret;
10743 }
10744
10745 /* offset and length are dword aligned */
10746 static int tg3_nvram_write_block_buffered(struct tg3 *tp, u32 offset, u32 len,
10747                 u8 *buf)
10748 {
10749         int i, ret = 0;
10750
10751         for (i = 0; i < len; i += 4, offset += 4) {
10752                 u32 page_off, phy_addr, nvram_cmd;
10753                 __be32 data;
10754
10755                 memcpy(&data, buf + i, 4);
10756                 tw32(NVRAM_WRDATA, be32_to_cpu(data));
10757
10758                 page_off = offset % tp->nvram_pagesize;
10759
10760                 phy_addr = tg3_nvram_phys_addr(tp, offset);
10761
10762                 tw32(NVRAM_ADDR, phy_addr);
10763
10764                 nvram_cmd = NVRAM_CMD_GO | NVRAM_CMD_DONE | NVRAM_CMD_WR;
10765
10766                 if ((page_off == 0) || (i == 0))
10767                         nvram_cmd |= NVRAM_CMD_FIRST;
10768                 if (page_off == (tp->nvram_pagesize - 4))
10769                         nvram_cmd |= NVRAM_CMD_LAST;
10770
10771                 if (i == (len - 4))
10772                         nvram_cmd |= NVRAM_CMD_LAST;
10773
10774                 if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5752 &&
10775                     !(tp->tg3_flags3 & TG3_FLG3_5755_PLUS) &&
10776                     (tp->nvram_jedecnum == JEDEC_ST) &&
10777                     (nvram_cmd & NVRAM_CMD_FIRST)) {
10778
10779                         if ((ret = tg3_nvram_exec_cmd(tp,
10780                                 NVRAM_CMD_WREN | NVRAM_CMD_GO |
10781                                 NVRAM_CMD_DONE)))
10782
10783                                 break;
10784                 }
10785                 if (!(tp->tg3_flags2 & TG3_FLG2_FLASH)) {
10786                         /* We always do complete word writes to eeprom. */
10787                         nvram_cmd |= (NVRAM_CMD_FIRST | NVRAM_CMD_LAST);
10788                 }
10789
10790                 if ((ret = tg3_nvram_exec_cmd(tp, nvram_cmd)))
10791                         break;
10792         }
10793         return ret;
10794 }
10795
10796 /* offset and length are dword aligned */
10797 static int tg3_nvram_write_block(struct tg3 *tp, u32 offset, u32 len, u8 *buf)
10798 {
10799         int ret;
10800
10801         if (tp->tg3_flags & TG3_FLAG_EEPROM_WRITE_PROT) {
10802                 tw32_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl &
10803                        ~GRC_LCLCTRL_GPIO_OUTPUT1);
10804                 udelay(40);
10805         }
10806
10807         if (!(tp->tg3_flags & TG3_FLAG_NVRAM)) {
10808                 ret = tg3_nvram_write_block_using_eeprom(tp, offset, len, buf);
10809         }
10810         else {
10811                 u32 grc_mode;
10812
10813                 ret = tg3_nvram_lock(tp);
10814                 if (ret)
10815                         return ret;
10816
10817                 tg3_enable_nvram_access(tp);
10818                 if ((tp->tg3_flags2 & TG3_FLG2_5750_PLUS) &&
10819                     !(tp->tg3_flags2 & TG3_FLG2_PROTECTED_NVRAM))
10820                         tw32(NVRAM_WRITE1, 0x406);
10821
10822                 grc_mode = tr32(GRC_MODE);
10823                 tw32(GRC_MODE, grc_mode | GRC_MODE_NVRAM_WR_ENABLE);
10824
10825                 if ((tp->tg3_flags & TG3_FLAG_NVRAM_BUFFERED) ||
10826                         !(tp->tg3_flags2 & TG3_FLG2_FLASH)) {
10827
10828                         ret = tg3_nvram_write_block_buffered(tp, offset, len,
10829                                 buf);
10830                 }
10831                 else {
10832                         ret = tg3_nvram_write_block_unbuffered(tp, offset, len,
10833                                 buf);
10834                 }
10835
10836                 grc_mode = tr32(GRC_MODE);
10837                 tw32(GRC_MODE, grc_mode & ~GRC_MODE_NVRAM_WR_ENABLE);
10838
10839                 tg3_disable_nvram_access(tp);
10840                 tg3_nvram_unlock(tp);
10841         }
10842
10843         if (tp->tg3_flags & TG3_FLAG_EEPROM_WRITE_PROT) {
10844                 tw32_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl);
10845                 udelay(40);
10846         }
10847
10848         return ret;
10849 }
10850
10851 struct subsys_tbl_ent {
10852         u16 subsys_vendor, subsys_devid;
10853         u32 phy_id;
10854 };
10855
10856 static struct subsys_tbl_ent subsys_id_to_phy_id[] = {
10857         /* Broadcom boards. */
10858         { PCI_VENDOR_ID_BROADCOM, 0x1644, PHY_ID_BCM5401 }, /* BCM95700A6 */
10859         { PCI_VENDOR_ID_BROADCOM, 0x0001, PHY_ID_BCM5701 }, /* BCM95701A5 */
10860         { PCI_VENDOR_ID_BROADCOM, 0x0002, PHY_ID_BCM8002 }, /* BCM95700T6 */
10861         { PCI_VENDOR_ID_BROADCOM, 0x0003, 0 },              /* BCM95700A9 */
10862         { PCI_VENDOR_ID_BROADCOM, 0x0005, PHY_ID_BCM5701 }, /* BCM95701T1 */
10863         { PCI_VENDOR_ID_BROADCOM, 0x0006, PHY_ID_BCM5701 }, /* BCM95701T8 */
10864         { PCI_VENDOR_ID_BROADCOM, 0x0007, 0 },              /* BCM95701A7 */
10865         { PCI_VENDOR_ID_BROADCOM, 0x0008, PHY_ID_BCM5701 }, /* BCM95701A10 */
10866         { PCI_VENDOR_ID_BROADCOM, 0x8008, PHY_ID_BCM5701 }, /* BCM95701A12 */
10867         { PCI_VENDOR_ID_BROADCOM, 0x0009, PHY_ID_BCM5703 }, /* BCM95703Ax1 */
10868         { PCI_VENDOR_ID_BROADCOM, 0x8009, PHY_ID_BCM5703 }, /* BCM95703Ax2 */
10869
10870         /* 3com boards. */
10871         { PCI_VENDOR_ID_3COM, 0x1000, PHY_ID_BCM5401 }, /* 3C996T */
10872         { PCI_VENDOR_ID_3COM, 0x1006, PHY_ID_BCM5701 }, /* 3C996BT */
10873         { PCI_VENDOR_ID_3COM, 0x1004, 0 },              /* 3C996SX */
10874         { PCI_VENDOR_ID_3COM, 0x1007, PHY_ID_BCM5701 }, /* 3C1000T */
10875         { PCI_VENDOR_ID_3COM, 0x1008, PHY_ID_BCM5701 }, /* 3C940BR01 */
10876
10877         /* DELL boards. */
10878         { PCI_VENDOR_ID_DELL, 0x00d1, PHY_ID_BCM5401 }, /* VIPER */
10879         { PCI_VENDOR_ID_DELL, 0x0106, PHY_ID_BCM5401 }, /* JAGUAR */
10880         { PCI_VENDOR_ID_DELL, 0x0109, PHY_ID_BCM5411 }, /* MERLOT */
10881         { PCI_VENDOR_ID_DELL, 0x010a, PHY_ID_BCM5411 }, /* SLIM_MERLOT */
10882
10883         /* Compaq boards. */
10884         { PCI_VENDOR_ID_COMPAQ, 0x007c, PHY_ID_BCM5701 }, /* BANSHEE */
10885         { PCI_VENDOR_ID_COMPAQ, 0x009a, PHY_ID_BCM5701 }, /* BANSHEE_2 */
10886         { PCI_VENDOR_ID_COMPAQ, 0x007d, 0 },              /* CHANGELING */
10887         { PCI_VENDOR_ID_COMPAQ, 0x0085, PHY_ID_BCM5701 }, /* NC7780 */
10888         { PCI_VENDOR_ID_COMPAQ, 0x0099, PHY_ID_BCM5701 }, /* NC7780_2 */
10889
10890         /* IBM boards. */
10891         { PCI_VENDOR_ID_IBM, 0x0281, 0 } /* IBM??? */
10892 };
10893
10894 static inline struct subsys_tbl_ent *lookup_by_subsys(struct tg3 *tp)
10895 {
10896         int i;
10897
10898         for (i = 0; i < ARRAY_SIZE(subsys_id_to_phy_id); i++) {
10899                 if ((subsys_id_to_phy_id[i].subsys_vendor ==
10900                      tp->pdev->subsystem_vendor) &&
10901                     (subsys_id_to_phy_id[i].subsys_devid ==
10902                      tp->pdev->subsystem_device))
10903                         return &subsys_id_to_phy_id[i];
10904         }
10905         return NULL;
10906 }
10907
10908 static void __devinit tg3_get_eeprom_hw_cfg(struct tg3 *tp)
10909 {
10910         u32 val;
10911         u16 pmcsr;
10912
10913         /* On some early chips the SRAM cannot be accessed in D3hot state,
10914          * so need make sure we're in D0.
10915          */
10916         pci_read_config_word(tp->pdev, tp->pm_cap + PCI_PM_CTRL, &pmcsr);
10917         pmcsr &= ~PCI_PM_CTRL_STATE_MASK;
10918         pci_write_config_word(tp->pdev, tp->pm_cap + PCI_PM_CTRL, pmcsr);
10919         msleep(1);
10920
10921         /* Make sure register accesses (indirect or otherwise)
10922          * will function correctly.
10923          */
10924         pci_write_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL,
10925                                tp->misc_host_ctrl);
10926
10927         /* The memory arbiter has to be enabled in order for SRAM accesses
10928          * to succeed.  Normally on powerup the tg3 chip firmware will make
10929          * sure it is enabled, but other entities such as system netboot
10930          * code might disable it.
10931          */
10932         val = tr32(MEMARB_MODE);
10933         tw32(MEMARB_MODE, val | MEMARB_MODE_ENABLE);
10934
10935         tp->phy_id = PHY_ID_INVALID;
10936         tp->led_ctrl = LED_CTRL_MODE_PHY_1;
10937
10938         /* Assume an onboard device and WOL capable by default.  */
10939         tp->tg3_flags |= TG3_FLAG_EEPROM_WRITE_PROT | TG3_FLAG_WOL_CAP;
10940
10941         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
10942                 if (!(tr32(PCIE_TRANSACTION_CFG) & PCIE_TRANS_CFG_LOM)) {
10943                         tp->tg3_flags &= ~TG3_FLAG_EEPROM_WRITE_PROT;
10944                         tp->tg3_flags2 |= TG3_FLG2_IS_NIC;
10945                 }
10946                 val = tr32(VCPU_CFGSHDW);
10947                 if (val & VCPU_CFGSHDW_ASPM_DBNC)
10948                         tp->tg3_flags |= TG3_FLAG_ASPM_WORKAROUND;
10949                 if ((val & VCPU_CFGSHDW_WOL_ENABLE) &&
10950                     (val & VCPU_CFGSHDW_WOL_MAGPKT))
10951                         tp->tg3_flags |= TG3_FLAG_WOL_ENABLE;
10952                 goto done;
10953         }
10954
10955         tg3_read_mem(tp, NIC_SRAM_DATA_SIG, &val);
10956         if (val == NIC_SRAM_DATA_SIG_MAGIC) {
10957                 u32 nic_cfg, led_cfg;
10958                 u32 nic_phy_id, ver, cfg2 = 0, cfg4 = 0, eeprom_phy_id;
10959                 int eeprom_phy_serdes = 0;
10960
10961                 tg3_read_mem(tp, NIC_SRAM_DATA_CFG, &nic_cfg);
10962                 tp->nic_sram_data_cfg = nic_cfg;
10963
10964                 tg3_read_mem(tp, NIC_SRAM_DATA_VER, &ver);
10965                 ver >>= NIC_SRAM_DATA_VER_SHIFT;
10966                 if ((GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700) &&
10967                     (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701) &&
10968                     (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5703) &&
10969                     (ver > 0) && (ver < 0x100))
10970                         tg3_read_mem(tp, NIC_SRAM_DATA_CFG_2, &cfg2);
10971
10972                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785)
10973                         tg3_read_mem(tp, NIC_SRAM_DATA_CFG_4, &cfg4);
10974
10975                 if ((nic_cfg & NIC_SRAM_DATA_CFG_PHY_TYPE_MASK) ==
10976                     NIC_SRAM_DATA_CFG_PHY_TYPE_FIBER)
10977                         eeprom_phy_serdes = 1;
10978
10979                 tg3_read_mem(tp, NIC_SRAM_DATA_PHY_ID, &nic_phy_id);
10980                 if (nic_phy_id != 0) {
10981                         u32 id1 = nic_phy_id & NIC_SRAM_DATA_PHY_ID1_MASK;
10982                         u32 id2 = nic_phy_id & NIC_SRAM_DATA_PHY_ID2_MASK;
10983
10984                         eeprom_phy_id  = (id1 >> 16) << 10;
10985                         eeprom_phy_id |= (id2 & 0xfc00) << 16;
10986                         eeprom_phy_id |= (id2 & 0x03ff) <<  0;
10987                 } else
10988                         eeprom_phy_id = 0;
10989
10990                 tp->phy_id = eeprom_phy_id;
10991                 if (eeprom_phy_serdes) {
10992                         if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)
10993                                 tp->tg3_flags2 |= TG3_FLG2_MII_SERDES;
10994                         else
10995                                 tp->tg3_flags2 |= TG3_FLG2_PHY_SERDES;
10996                 }
10997
10998                 if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS)
10999                         led_cfg = cfg2 & (NIC_SRAM_DATA_CFG_LED_MODE_MASK |
11000                                     SHASTA_EXT_LED_MODE_MASK);
11001                 else
11002                         led_cfg = nic_cfg & NIC_SRAM_DATA_CFG_LED_MODE_MASK;
11003
11004                 switch (led_cfg) {
11005                 default:
11006                 case NIC_SRAM_DATA_CFG_LED_MODE_PHY_1:
11007                         tp->led_ctrl = LED_CTRL_MODE_PHY_1;
11008                         break;
11009
11010                 case NIC_SRAM_DATA_CFG_LED_MODE_PHY_2:
11011                         tp->led_ctrl = LED_CTRL_MODE_PHY_2;
11012                         break;
11013
11014                 case NIC_SRAM_DATA_CFG_LED_MODE_MAC:
11015                         tp->led_ctrl = LED_CTRL_MODE_MAC;
11016
11017                         /* Default to PHY_1_MODE if 0 (MAC_MODE) is
11018                          * read on some older 5700/5701 bootcode.
11019                          */
11020                         if (GET_ASIC_REV(tp->pci_chip_rev_id) ==
11021                             ASIC_REV_5700 ||
11022                             GET_ASIC_REV(tp->pci_chip_rev_id) ==
11023                             ASIC_REV_5701)
11024                                 tp->led_ctrl = LED_CTRL_MODE_PHY_1;
11025
11026                         break;
11027
11028                 case SHASTA_EXT_LED_SHARED:
11029                         tp->led_ctrl = LED_CTRL_MODE_SHARED;
11030                         if (tp->pci_chip_rev_id != CHIPREV_ID_5750_A0 &&
11031                             tp->pci_chip_rev_id != CHIPREV_ID_5750_A1)
11032                                 tp->led_ctrl |= (LED_CTRL_MODE_PHY_1 |
11033                                                  LED_CTRL_MODE_PHY_2);
11034                         break;
11035
11036                 case SHASTA_EXT_LED_MAC:
11037                         tp->led_ctrl = LED_CTRL_MODE_SHASTA_MAC;
11038                         break;
11039
11040                 case SHASTA_EXT_LED_COMBO:
11041                         tp->led_ctrl = LED_CTRL_MODE_COMBO;
11042                         if (tp->pci_chip_rev_id != CHIPREV_ID_5750_A0)
11043                                 tp->led_ctrl |= (LED_CTRL_MODE_PHY_1 |
11044                                                  LED_CTRL_MODE_PHY_2);
11045                         break;
11046
11047                 }
11048
11049                 if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
11050                      GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) &&
11051                     tp->pdev->subsystem_vendor == PCI_VENDOR_ID_DELL)
11052                         tp->led_ctrl = LED_CTRL_MODE_PHY_2;
11053
11054                 if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX)
11055                         tp->led_ctrl = LED_CTRL_MODE_PHY_1;
11056
11057                 if (nic_cfg & NIC_SRAM_DATA_CFG_EEPROM_WP) {
11058                         tp->tg3_flags |= TG3_FLAG_EEPROM_WRITE_PROT;
11059                         if ((tp->pdev->subsystem_vendor ==
11060                              PCI_VENDOR_ID_ARIMA) &&
11061                             (tp->pdev->subsystem_device == 0x205a ||
11062                              tp->pdev->subsystem_device == 0x2063))
11063                                 tp->tg3_flags &= ~TG3_FLAG_EEPROM_WRITE_PROT;
11064                 } else {
11065                         tp->tg3_flags &= ~TG3_FLAG_EEPROM_WRITE_PROT;
11066                         tp->tg3_flags2 |= TG3_FLG2_IS_NIC;
11067                 }
11068
11069                 if (nic_cfg & NIC_SRAM_DATA_CFG_ASF_ENABLE) {
11070                         tp->tg3_flags |= TG3_FLAG_ENABLE_ASF;
11071                         if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS)
11072                                 tp->tg3_flags2 |= TG3_FLG2_ASF_NEW_HANDSHAKE;
11073                 }
11074
11075                 if ((nic_cfg & NIC_SRAM_DATA_CFG_APE_ENABLE) &&
11076                         (tp->tg3_flags2 & TG3_FLG2_5750_PLUS))
11077                         tp->tg3_flags3 |= TG3_FLG3_ENABLE_APE;
11078
11079                 if (tp->tg3_flags2 & TG3_FLG2_ANY_SERDES &&
11080                     !(nic_cfg & NIC_SRAM_DATA_CFG_FIBER_WOL))
11081                         tp->tg3_flags &= ~TG3_FLAG_WOL_CAP;
11082
11083                 if ((tp->tg3_flags & TG3_FLAG_WOL_CAP) &&
11084                     (nic_cfg & NIC_SRAM_DATA_CFG_WOL_ENABLE))
11085                         tp->tg3_flags |= TG3_FLAG_WOL_ENABLE;
11086
11087                 if (cfg2 & (1 << 17))
11088                         tp->tg3_flags2 |= TG3_FLG2_CAPACITIVE_COUPLING;
11089
11090                 /* serdes signal pre-emphasis in register 0x590 set by */
11091                 /* bootcode if bit 18 is set */
11092                 if (cfg2 & (1 << 18))
11093                         tp->tg3_flags2 |= TG3_FLG2_SERDES_PREEMPHASIS;
11094
11095                 if (((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 &&
11096                       GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5784_AX)) &&
11097                     (cfg2 & NIC_SRAM_DATA_CFG_2_APD_EN))
11098                         tp->tg3_flags3 |= TG3_FLG3_PHY_ENABLE_APD;
11099
11100                 if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) {
11101                         u32 cfg3;
11102
11103                         tg3_read_mem(tp, NIC_SRAM_DATA_CFG_3, &cfg3);
11104                         if (cfg3 & NIC_SRAM_ASPM_DEBOUNCE)
11105                                 tp->tg3_flags |= TG3_FLAG_ASPM_WORKAROUND;
11106                 }
11107
11108                 if (cfg4 & NIC_SRAM_RGMII_STD_IBND_DISABLE)
11109                         tp->tg3_flags3 |= TG3_FLG3_RGMII_STD_IBND_DISABLE;
11110                 if (cfg4 & NIC_SRAM_RGMII_EXT_IBND_RX_EN)
11111                         tp->tg3_flags3 |= TG3_FLG3_RGMII_EXT_IBND_RX_EN;
11112                 if (cfg4 & NIC_SRAM_RGMII_EXT_IBND_TX_EN)
11113                         tp->tg3_flags3 |= TG3_FLG3_RGMII_EXT_IBND_TX_EN;
11114         }
11115 done:
11116         device_init_wakeup(&tp->pdev->dev, tp->tg3_flags & TG3_FLAG_WOL_CAP);
11117         device_set_wakeup_enable(&tp->pdev->dev,
11118                                  tp->tg3_flags & TG3_FLAG_WOL_ENABLE);
11119 }
11120
11121 static int __devinit tg3_issue_otp_command(struct tg3 *tp, u32 cmd)
11122 {
11123         int i;
11124         u32 val;
11125
11126         tw32(OTP_CTRL, cmd | OTP_CTRL_OTP_CMD_START);
11127         tw32(OTP_CTRL, cmd);
11128
11129         /* Wait for up to 1 ms for command to execute. */
11130         for (i = 0; i < 100; i++) {
11131                 val = tr32(OTP_STATUS);
11132                 if (val & OTP_STATUS_CMD_DONE)
11133                         break;
11134                 udelay(10);
11135         }
11136
11137         return (val & OTP_STATUS_CMD_DONE) ? 0 : -EBUSY;
11138 }
11139
11140 /* Read the gphy configuration from the OTP region of the chip.  The gphy
11141  * configuration is a 32-bit value that straddles the alignment boundary.
11142  * We do two 32-bit reads and then shift and merge the results.
11143  */
11144 static u32 __devinit tg3_read_otp_phycfg(struct tg3 *tp)
11145 {
11146         u32 bhalf_otp, thalf_otp;
11147
11148         tw32(OTP_MODE, OTP_MODE_OTP_THRU_GRC);
11149
11150         if (tg3_issue_otp_command(tp, OTP_CTRL_OTP_CMD_INIT))
11151                 return 0;
11152
11153         tw32(OTP_ADDRESS, OTP_ADDRESS_MAGIC1);
11154
11155         if (tg3_issue_otp_command(tp, OTP_CTRL_OTP_CMD_READ))
11156                 return 0;
11157
11158         thalf_otp = tr32(OTP_READ_DATA);
11159
11160         tw32(OTP_ADDRESS, OTP_ADDRESS_MAGIC2);
11161
11162         if (tg3_issue_otp_command(tp, OTP_CTRL_OTP_CMD_READ))
11163                 return 0;
11164
11165         bhalf_otp = tr32(OTP_READ_DATA);
11166
11167         return ((thalf_otp & 0x0000ffff) << 16) | (bhalf_otp >> 16);
11168 }
11169
11170 static int __devinit tg3_phy_probe(struct tg3 *tp)
11171 {
11172         u32 hw_phy_id_1, hw_phy_id_2;
11173         u32 hw_phy_id, hw_phy_id_masked;
11174         int err;
11175
11176         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB)
11177                 return tg3_phy_init(tp);
11178
11179         /* Reading the PHY ID register can conflict with ASF
11180          * firwmare access to the PHY hardware.
11181          */
11182         err = 0;
11183         if ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) ||
11184             (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)) {
11185                 hw_phy_id = hw_phy_id_masked = PHY_ID_INVALID;
11186         } else {
11187                 /* Now read the physical PHY_ID from the chip and verify
11188                  * that it is sane.  If it doesn't look good, we fall back
11189                  * to either the hard-coded table based PHY_ID and failing
11190                  * that the value found in the eeprom area.
11191                  */
11192                 err |= tg3_readphy(tp, MII_PHYSID1, &hw_phy_id_1);
11193                 err |= tg3_readphy(tp, MII_PHYSID2, &hw_phy_id_2);
11194
11195                 hw_phy_id  = (hw_phy_id_1 & 0xffff) << 10;
11196                 hw_phy_id |= (hw_phy_id_2 & 0xfc00) << 16;
11197                 hw_phy_id |= (hw_phy_id_2 & 0x03ff) <<  0;
11198
11199                 hw_phy_id_masked = hw_phy_id & PHY_ID_MASK;
11200         }
11201
11202         if (!err && KNOWN_PHY_ID(hw_phy_id_masked)) {
11203                 tp->phy_id = hw_phy_id;
11204                 if (hw_phy_id_masked == PHY_ID_BCM8002)
11205                         tp->tg3_flags2 |= TG3_FLG2_PHY_SERDES;
11206                 else
11207                         tp->tg3_flags2 &= ~TG3_FLG2_PHY_SERDES;
11208         } else {
11209                 if (tp->phy_id != PHY_ID_INVALID) {
11210                         /* Do nothing, phy ID already set up in
11211                          * tg3_get_eeprom_hw_cfg().
11212                          */
11213                 } else {
11214                         struct subsys_tbl_ent *p;
11215
11216                         /* No eeprom signature?  Try the hardcoded
11217                          * subsys device table.
11218                          */
11219                         p = lookup_by_subsys(tp);
11220                         if (!p)
11221                                 return -ENODEV;
11222
11223                         tp->phy_id = p->phy_id;
11224                         if (!tp->phy_id ||
11225                             tp->phy_id == PHY_ID_BCM8002)
11226                                 tp->tg3_flags2 |= TG3_FLG2_PHY_SERDES;
11227                 }
11228         }
11229
11230         if (!(tp->tg3_flags2 & TG3_FLG2_ANY_SERDES) &&
11231             !(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) &&
11232             !(tp->tg3_flags & TG3_FLAG_ENABLE_ASF)) {
11233                 u32 bmsr, adv_reg, tg3_ctrl, mask;
11234
11235                 tg3_readphy(tp, MII_BMSR, &bmsr);
11236                 if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
11237                     (bmsr & BMSR_LSTATUS))
11238                         goto skip_phy_reset;
11239
11240                 err = tg3_phy_reset(tp);
11241                 if (err)
11242                         return err;
11243
11244                 adv_reg = (ADVERTISE_10HALF | ADVERTISE_10FULL |
11245                            ADVERTISE_100HALF | ADVERTISE_100FULL |
11246                            ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
11247                 tg3_ctrl = 0;
11248                 if (!(tp->tg3_flags & TG3_FLAG_10_100_ONLY)) {
11249                         tg3_ctrl = (MII_TG3_CTRL_ADV_1000_HALF |
11250                                     MII_TG3_CTRL_ADV_1000_FULL);
11251                         if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
11252                             tp->pci_chip_rev_id == CHIPREV_ID_5701_B0)
11253                                 tg3_ctrl |= (MII_TG3_CTRL_AS_MASTER |
11254                                              MII_TG3_CTRL_ENABLE_AS_MASTER);
11255                 }
11256
11257                 mask = (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full |
11258                         ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full |
11259                         ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full);
11260                 if (!tg3_copper_is_advertising_all(tp, mask)) {
11261                         tg3_writephy(tp, MII_ADVERTISE, adv_reg);
11262
11263                         if (!(tp->tg3_flags & TG3_FLAG_10_100_ONLY))
11264                                 tg3_writephy(tp, MII_TG3_CTRL, tg3_ctrl);
11265
11266                         tg3_writephy(tp, MII_BMCR,
11267                                      BMCR_ANENABLE | BMCR_ANRESTART);
11268                 }
11269                 tg3_phy_set_wirespeed(tp);
11270
11271                 tg3_writephy(tp, MII_ADVERTISE, adv_reg);
11272                 if (!(tp->tg3_flags & TG3_FLAG_10_100_ONLY))
11273                         tg3_writephy(tp, MII_TG3_CTRL, tg3_ctrl);
11274         }
11275
11276 skip_phy_reset:
11277         if ((tp->phy_id & PHY_ID_MASK) == PHY_ID_BCM5401) {
11278                 err = tg3_init_5401phy_dsp(tp);
11279                 if (err)
11280                         return err;
11281         }
11282
11283         if (!err && ((tp->phy_id & PHY_ID_MASK) == PHY_ID_BCM5401)) {
11284                 err = tg3_init_5401phy_dsp(tp);
11285         }
11286
11287         if (tp->tg3_flags2 & TG3_FLG2_ANY_SERDES)
11288                 tp->link_config.advertising =
11289                         (ADVERTISED_1000baseT_Half |
11290                          ADVERTISED_1000baseT_Full |
11291                          ADVERTISED_Autoneg |
11292                          ADVERTISED_FIBRE);
11293         if (tp->tg3_flags & TG3_FLAG_10_100_ONLY)
11294                 tp->link_config.advertising &=
11295                         ~(ADVERTISED_1000baseT_Half |
11296                           ADVERTISED_1000baseT_Full);
11297
11298         return err;
11299 }
11300
11301 static void __devinit tg3_read_partno(struct tg3 *tp)
11302 {
11303         unsigned char vpd_data[256];
11304         unsigned int i;
11305         u32 magic;
11306
11307         if (tg3_nvram_read_swab(tp, 0x0, &magic))
11308                 goto out_not_found;
11309
11310         if (magic == TG3_EEPROM_MAGIC) {
11311                 for (i = 0; i < 256; i += 4) {
11312                         u32 tmp;
11313
11314                         if (tg3_nvram_read(tp, 0x100 + i, &tmp))
11315                                 goto out_not_found;
11316
11317                         vpd_data[i + 0] = ((tmp >>  0) & 0xff);
11318                         vpd_data[i + 1] = ((tmp >>  8) & 0xff);
11319                         vpd_data[i + 2] = ((tmp >> 16) & 0xff);
11320                         vpd_data[i + 3] = ((tmp >> 24) & 0xff);
11321                 }
11322         } else {
11323                 int vpd_cap;
11324
11325                 vpd_cap = pci_find_capability(tp->pdev, PCI_CAP_ID_VPD);
11326                 for (i = 0; i < 256; i += 4) {
11327                         u32 tmp, j = 0;
11328                         __le32 v;
11329                         u16 tmp16;
11330
11331                         pci_write_config_word(tp->pdev, vpd_cap + PCI_VPD_ADDR,
11332                                               i);
11333                         while (j++ < 100) {
11334                                 pci_read_config_word(tp->pdev, vpd_cap +
11335                                                      PCI_VPD_ADDR, &tmp16);
11336                                 if (tmp16 & 0x8000)
11337                                         break;
11338                                 msleep(1);
11339                         }
11340                         if (!(tmp16 & 0x8000))
11341                                 goto out_not_found;
11342
11343                         pci_read_config_dword(tp->pdev, vpd_cap + PCI_VPD_DATA,
11344                                               &tmp);
11345                         v = cpu_to_le32(tmp);
11346                         memcpy(&vpd_data[i], &v, 4);
11347                 }
11348         }
11349
11350         /* Now parse and find the part number. */
11351         for (i = 0; i < 254; ) {
11352                 unsigned char val = vpd_data[i];
11353                 unsigned int block_end;
11354
11355                 if (val == 0x82 || val == 0x91) {
11356                         i = (i + 3 +
11357                              (vpd_data[i + 1] +
11358                               (vpd_data[i + 2] << 8)));
11359                         continue;
11360                 }
11361
11362                 if (val != 0x90)
11363                         goto out_not_found;
11364
11365                 block_end = (i + 3 +
11366                              (vpd_data[i + 1] +
11367                               (vpd_data[i + 2] << 8)));
11368                 i += 3;
11369
11370                 if (block_end > 256)
11371                         goto out_not_found;
11372
11373                 while (i < (block_end - 2)) {
11374                         if (vpd_data[i + 0] == 'P' &&
11375                             vpd_data[i + 1] == 'N') {
11376                                 int partno_len = vpd_data[i + 2];
11377
11378                                 i += 3;
11379                                 if (partno_len > 24 || (partno_len + i) > 256)
11380                                         goto out_not_found;
11381
11382                                 memcpy(tp->board_part_number,
11383                                        &vpd_data[i], partno_len);
11384
11385                                 /* Success. */
11386                                 return;
11387                         }
11388                         i += 3 + vpd_data[i + 2];
11389                 }
11390
11391                 /* Part number not found. */
11392                 goto out_not_found;
11393         }
11394
11395 out_not_found:
11396         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
11397                 strcpy(tp->board_part_number, "BCM95906");
11398         else
11399                 strcpy(tp->board_part_number, "none");
11400 }
11401
11402 static int __devinit tg3_fw_img_is_valid(struct tg3 *tp, u32 offset)
11403 {
11404         u32 val;
11405
11406         if (tg3_nvram_read_swab(tp, offset, &val) ||
11407             (val & 0xfc000000) != 0x0c000000 ||
11408             tg3_nvram_read_swab(tp, offset + 4, &val) ||
11409             val != 0)
11410                 return 0;
11411
11412         return 1;
11413 }
11414
11415 static void __devinit tg3_read_sb_ver(struct tg3 *tp, u32 val)
11416 {
11417         u32 offset, major, minor, build;
11418
11419         tp->fw_ver[0] = 's';
11420         tp->fw_ver[1] = 'b';
11421         tp->fw_ver[2] = '\0';
11422
11423         if ((val & TG3_EEPROM_SB_FORMAT_MASK) != TG3_EEPROM_SB_FORMAT_1)
11424                 return;
11425
11426         switch (val & TG3_EEPROM_SB_REVISION_MASK) {
11427         case TG3_EEPROM_SB_REVISION_0:
11428                 offset = TG3_EEPROM_SB_F1R0_EDH_OFF;
11429                 break;
11430         case TG3_EEPROM_SB_REVISION_2:
11431                 offset = TG3_EEPROM_SB_F1R2_EDH_OFF;
11432                 break;
11433         case TG3_EEPROM_SB_REVISION_3:
11434                 offset = TG3_EEPROM_SB_F1R3_EDH_OFF;
11435                 break;
11436         default:
11437                 return;
11438         }
11439
11440         if (tg3_nvram_read_swab(tp, offset, &val))
11441                 return;
11442
11443         build = (val & TG3_EEPROM_SB_EDH_BLD_MASK) >>
11444                 TG3_EEPROM_SB_EDH_BLD_SHFT;
11445         major = (val & TG3_EEPROM_SB_EDH_MAJ_MASK) >>
11446                 TG3_EEPROM_SB_EDH_MAJ_SHFT;
11447         minor =  val & TG3_EEPROM_SB_EDH_MIN_MASK;
11448
11449         if (minor > 99 || build > 26)
11450                 return;
11451
11452         snprintf(&tp->fw_ver[2], 30, " v%d.%02d", major, minor);
11453
11454         if (build > 0) {
11455                 tp->fw_ver[8] = 'a' + build - 1;
11456                 tp->fw_ver[9] = '\0';
11457         }
11458 }
11459
11460 static void __devinit tg3_read_fw_ver(struct tg3 *tp)
11461 {
11462         u32 val, offset, start;
11463         u32 ver_offset;
11464         int i, bcnt;
11465
11466         if (tg3_nvram_read_swab(tp, 0, &val))
11467                 return;
11468
11469         if (val != TG3_EEPROM_MAGIC) {
11470                 if ((val & TG3_EEPROM_MAGIC_FW_MSK) == TG3_EEPROM_MAGIC_FW)
11471                         tg3_read_sb_ver(tp, val);
11472
11473                 return;
11474         }
11475
11476         if (tg3_nvram_read_swab(tp, 0xc, &offset) ||
11477             tg3_nvram_read_swab(tp, 0x4, &start))
11478                 return;
11479
11480         offset = tg3_nvram_logical_addr(tp, offset);
11481
11482         if (!tg3_fw_img_is_valid(tp, offset) ||
11483             tg3_nvram_read_swab(tp, offset + 8, &ver_offset))
11484                 return;
11485
11486         offset = offset + ver_offset - start;
11487         for (i = 0; i < 16; i += 4) {
11488                 __le32 v;
11489                 if (tg3_nvram_read_le(tp, offset + i, &v))
11490                         return;
11491
11492                 memcpy(tp->fw_ver + i, &v, 4);
11493         }
11494
11495         if (!(tp->tg3_flags & TG3_FLAG_ENABLE_ASF) ||
11496              (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE))
11497                 return;
11498
11499         for (offset = TG3_NVM_DIR_START;
11500              offset < TG3_NVM_DIR_END;
11501              offset += TG3_NVM_DIRENT_SIZE) {
11502                 if (tg3_nvram_read_swab(tp, offset, &val))
11503                         return;
11504
11505                 if ((val >> TG3_NVM_DIRTYPE_SHIFT) == TG3_NVM_DIRTYPE_ASFINI)
11506                         break;
11507         }
11508
11509         if (offset == TG3_NVM_DIR_END)
11510                 return;
11511
11512         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
11513                 start = 0x08000000;
11514         else if (tg3_nvram_read_swab(tp, offset - 4, &start))
11515                 return;
11516
11517         if (tg3_nvram_read_swab(tp, offset + 4, &offset) ||
11518             !tg3_fw_img_is_valid(tp, offset) ||
11519             tg3_nvram_read_swab(tp, offset + 8, &val))
11520                 return;
11521
11522         offset += val - start;
11523
11524         bcnt = strlen(tp->fw_ver);
11525
11526         tp->fw_ver[bcnt++] = ',';
11527         tp->fw_ver[bcnt++] = ' ';
11528
11529         for (i = 0; i < 4; i++) {
11530                 __le32 v;
11531                 if (tg3_nvram_read_le(tp, offset, &v))
11532                         return;
11533
11534                 offset += sizeof(v);
11535
11536                 if (bcnt > TG3_VER_SIZE - sizeof(v)) {
11537                         memcpy(&tp->fw_ver[bcnt], &v, TG3_VER_SIZE - bcnt);
11538                         break;
11539                 }
11540
11541                 memcpy(&tp->fw_ver[bcnt], &v, sizeof(v));
11542                 bcnt += sizeof(v);
11543         }
11544
11545         tp->fw_ver[TG3_VER_SIZE - 1] = 0;
11546 }
11547
11548 static struct pci_dev * __devinit tg3_find_peer(struct tg3 *);
11549
11550 static int __devinit tg3_get_invariants(struct tg3 *tp)
11551 {
11552         static struct pci_device_id write_reorder_chipsets[] = {
11553                 { PCI_DEVICE(PCI_VENDOR_ID_AMD,
11554                              PCI_DEVICE_ID_AMD_FE_GATE_700C) },
11555                 { PCI_DEVICE(PCI_VENDOR_ID_AMD,
11556                              PCI_DEVICE_ID_AMD_8131_BRIDGE) },
11557                 { PCI_DEVICE(PCI_VENDOR_ID_VIA,
11558                              PCI_DEVICE_ID_VIA_8385_0) },
11559                 { },
11560         };
11561         u32 misc_ctrl_reg;
11562         u32 pci_state_reg, grc_misc_cfg;
11563         u32 val;
11564         u16 pci_cmd;
11565         int err;
11566
11567         /* Force memory write invalidate off.  If we leave it on,
11568          * then on 5700_BX chips we have to enable a workaround.
11569          * The workaround is to set the TG3PCI_DMA_RW_CTRL boundary
11570          * to match the cacheline size.  The Broadcom driver have this
11571          * workaround but turns MWI off all the times so never uses
11572          * it.  This seems to suggest that the workaround is insufficient.
11573          */
11574         pci_read_config_word(tp->pdev, PCI_COMMAND, &pci_cmd);
11575         pci_cmd &= ~PCI_COMMAND_INVALIDATE;
11576         pci_write_config_word(tp->pdev, PCI_COMMAND, pci_cmd);
11577
11578         /* It is absolutely critical that TG3PCI_MISC_HOST_CTRL
11579          * has the register indirect write enable bit set before
11580          * we try to access any of the MMIO registers.  It is also
11581          * critical that the PCI-X hw workaround situation is decided
11582          * before that as well.
11583          */
11584         pci_read_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL,
11585                               &misc_ctrl_reg);
11586
11587         tp->pci_chip_rev_id = (misc_ctrl_reg >>
11588                                MISC_HOST_CTRL_CHIPREV_SHIFT);
11589         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_USE_PROD_ID_REG) {
11590                 u32 prod_id_asic_rev;
11591
11592                 pci_read_config_dword(tp->pdev, TG3PCI_PRODID_ASICREV,
11593                                       &prod_id_asic_rev);
11594                 tp->pci_chip_rev_id = prod_id_asic_rev;
11595         }
11596
11597         /* Wrong chip ID in 5752 A0. This code can be removed later
11598          * as A0 is not in production.
11599          */
11600         if (tp->pci_chip_rev_id == CHIPREV_ID_5752_A0_HW)
11601                 tp->pci_chip_rev_id = CHIPREV_ID_5752_A0;
11602
11603         /* If we have 5702/03 A1 or A2 on certain ICH chipsets,
11604          * we need to disable memory and use config. cycles
11605          * only to access all registers. The 5702/03 chips
11606          * can mistakenly decode the special cycles from the
11607          * ICH chipsets as memory write cycles, causing corruption
11608          * of register and memory space. Only certain ICH bridges
11609          * will drive special cycles with non-zero data during the
11610          * address phase which can fall within the 5703's address
11611          * range. This is not an ICH bug as the PCI spec allows
11612          * non-zero address during special cycles. However, only
11613          * these ICH bridges are known to drive non-zero addresses
11614          * during special cycles.
11615          *
11616          * Since special cycles do not cross PCI bridges, we only
11617          * enable this workaround if the 5703 is on the secondary
11618          * bus of these ICH bridges.
11619          */
11620         if ((tp->pci_chip_rev_id == CHIPREV_ID_5703_A1) ||
11621             (tp->pci_chip_rev_id == CHIPREV_ID_5703_A2)) {
11622                 static struct tg3_dev_id {
11623                         u32     vendor;
11624                         u32     device;
11625                         u32     rev;
11626                 } ich_chipsets[] = {
11627                         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_8,
11628                           PCI_ANY_ID },
11629                         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AB_8,
11630                           PCI_ANY_ID },
11631                         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_11,
11632                           0xa },
11633                         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_6,
11634                           PCI_ANY_ID },
11635                         { },
11636                 };
11637                 struct tg3_dev_id *pci_id = &ich_chipsets[0];
11638                 struct pci_dev *bridge = NULL;
11639
11640                 while (pci_id->vendor != 0) {
11641                         bridge = pci_get_device(pci_id->vendor, pci_id->device,
11642                                                 bridge);
11643                         if (!bridge) {
11644                                 pci_id++;
11645                                 continue;
11646                         }
11647                         if (pci_id->rev != PCI_ANY_ID) {
11648                                 if (bridge->revision > pci_id->rev)
11649                                         continue;
11650                         }
11651                         if (bridge->subordinate &&
11652                             (bridge->subordinate->number ==
11653                              tp->pdev->bus->number)) {
11654
11655                                 tp->tg3_flags2 |= TG3_FLG2_ICH_WORKAROUND;
11656                                 pci_dev_put(bridge);
11657                                 break;
11658                         }
11659                 }
11660         }
11661
11662         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701)) {
11663                 static struct tg3_dev_id {
11664                         u32     vendor;
11665                         u32     device;
11666                 } bridge_chipsets[] = {
11667                         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0 },
11668                         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1 },
11669                         { },
11670                 };
11671                 struct tg3_dev_id *pci_id = &bridge_chipsets[0];
11672                 struct pci_dev *bridge = NULL;
11673
11674                 while (pci_id->vendor != 0) {
11675                         bridge = pci_get_device(pci_id->vendor,
11676                                                 pci_id->device,
11677                                                 bridge);
11678                         if (!bridge) {
11679                                 pci_id++;
11680                                 continue;
11681                         }
11682                         if (bridge->subordinate &&
11683                             (bridge->subordinate->number <=
11684                              tp->pdev->bus->number) &&
11685                             (bridge->subordinate->subordinate >=
11686                              tp->pdev->bus->number)) {
11687                                 tp->tg3_flags3 |= TG3_FLG3_5701_DMA_BUG;
11688                                 pci_dev_put(bridge);
11689                                 break;
11690                         }
11691                 }
11692         }
11693
11694         /* The EPB bridge inside 5714, 5715, and 5780 cannot support
11695          * DMA addresses > 40-bit. This bridge may have other additional
11696          * 57xx devices behind it in some 4-port NIC designs for example.
11697          * Any tg3 device found behind the bridge will also need the 40-bit
11698          * DMA workaround.
11699          */
11700         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780 ||
11701             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714) {
11702                 tp->tg3_flags2 |= TG3_FLG2_5780_CLASS;
11703                 tp->tg3_flags |= TG3_FLAG_40BIT_DMA_BUG;
11704                 tp->msi_cap = pci_find_capability(tp->pdev, PCI_CAP_ID_MSI);
11705         }
11706         else {
11707                 struct pci_dev *bridge = NULL;
11708
11709                 do {
11710                         bridge = pci_get_device(PCI_VENDOR_ID_SERVERWORKS,
11711                                                 PCI_DEVICE_ID_SERVERWORKS_EPB,
11712                                                 bridge);
11713                         if (bridge && bridge->subordinate &&
11714                             (bridge->subordinate->number <=
11715                              tp->pdev->bus->number) &&
11716                             (bridge->subordinate->subordinate >=
11717                              tp->pdev->bus->number)) {
11718                                 tp->tg3_flags |= TG3_FLAG_40BIT_DMA_BUG;
11719                                 pci_dev_put(bridge);
11720                                 break;
11721                         }
11722                 } while (bridge);
11723         }
11724
11725         /* Initialize misc host control in PCI block. */
11726         tp->misc_host_ctrl |= (misc_ctrl_reg &
11727                                MISC_HOST_CTRL_CHIPREV);
11728         pci_write_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL,
11729                                tp->misc_host_ctrl);
11730
11731         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) ||
11732             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714))
11733                 tp->pdev_peer = tg3_find_peer(tp);
11734
11735         /* Intentionally exclude ASIC_REV_5906 */
11736         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755 ||
11737             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5787 ||
11738             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
11739             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
11740             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
11741             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
11742                 tp->tg3_flags3 |= TG3_FLG3_5755_PLUS;
11743
11744         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750 ||
11745             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752 ||
11746             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906 ||
11747             (tp->tg3_flags3 & TG3_FLG3_5755_PLUS) ||
11748             (tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
11749                 tp->tg3_flags2 |= TG3_FLG2_5750_PLUS;
11750
11751         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) ||
11752             (tp->tg3_flags2 & TG3_FLG2_5750_PLUS))
11753                 tp->tg3_flags2 |= TG3_FLG2_5705_PLUS;
11754
11755         /* 5700 B0 chips do not support checksumming correctly due
11756          * to hardware bugs.
11757          */
11758         if (tp->pci_chip_rev_id == CHIPREV_ID_5700_B0)
11759                 tp->tg3_flags |= TG3_FLAG_BROKEN_CHECKSUMS;
11760         else {
11761                 tp->tg3_flags |= TG3_FLAG_RX_CHECKSUMS;
11762                 tp->dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG;
11763                 if (tp->tg3_flags3 & TG3_FLG3_5755_PLUS)
11764                         tp->dev->features |= NETIF_F_IPV6_CSUM;
11765         }
11766
11767         if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS) {
11768                 tp->tg3_flags |= TG3_FLAG_SUPPORT_MSI;
11769                 if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5750_AX ||
11770                     GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5750_BX ||
11771                     (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714 &&
11772                      tp->pci_chip_rev_id <= CHIPREV_ID_5714_A2 &&
11773                      tp->pdev_peer == tp->pdev))
11774                         tp->tg3_flags &= ~TG3_FLAG_SUPPORT_MSI;
11775
11776                 if ((tp->tg3_flags3 & TG3_FLG3_5755_PLUS) ||
11777                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
11778                         tp->tg3_flags2 |= TG3_FLG2_HW_TSO_2;
11779                         tp->tg3_flags2 |= TG3_FLG2_1SHOT_MSI;
11780                 } else {
11781                         tp->tg3_flags2 |= TG3_FLG2_HW_TSO_1 | TG3_FLG2_TSO_BUG;
11782                         if (GET_ASIC_REV(tp->pci_chip_rev_id) ==
11783                                 ASIC_REV_5750 &&
11784                             tp->pci_chip_rev_id >= CHIPREV_ID_5750_C2)
11785                                 tp->tg3_flags2 &= ~TG3_FLG2_TSO_BUG;
11786                 }
11787         }
11788
11789         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) ||
11790              (tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
11791                 tp->tg3_flags2 |= TG3_FLG2_JUMBO_CAPABLE;
11792
11793         pci_read_config_dword(tp->pdev, TG3PCI_PCISTATE,
11794                               &pci_state_reg);
11795
11796         tp->pcie_cap = pci_find_capability(tp->pdev, PCI_CAP_ID_EXP);
11797         if (tp->pcie_cap != 0) {
11798                 u16 lnkctl;
11799
11800                 tp->tg3_flags2 |= TG3_FLG2_PCI_EXPRESS;
11801
11802                 pcie_set_readrq(tp->pdev, 4096);
11803
11804                 pci_read_config_word(tp->pdev,
11805                                      tp->pcie_cap + PCI_EXP_LNKCTL,
11806                                      &lnkctl);
11807                 if (lnkctl & PCI_EXP_LNKCTL_CLKREQ_EN) {
11808                         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
11809                                 tp->tg3_flags2 &= ~TG3_FLG2_HW_TSO_2;
11810                         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
11811                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
11812                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
11813                                 tp->tg3_flags3 |= TG3_FLG3_CLKREQ_BUG;
11814                 }
11815         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785) {
11816                 tp->tg3_flags2 |= TG3_FLG2_PCI_EXPRESS;
11817         } else if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) ||
11818                    (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
11819                 tp->pcix_cap = pci_find_capability(tp->pdev, PCI_CAP_ID_PCIX);
11820                 if (!tp->pcix_cap) {
11821                         printk(KERN_ERR PFX "Cannot find PCI-X "
11822                                             "capability, aborting.\n");
11823                         return -EIO;
11824                 }
11825
11826                 if (!(pci_state_reg & PCISTATE_CONV_PCI_MODE))
11827                         tp->tg3_flags |= TG3_FLAG_PCIX_MODE;
11828         }
11829
11830         /* If we have an AMD 762 or VIA K8T800 chipset, write
11831          * reordering to the mailbox registers done by the host
11832          * controller can cause major troubles.  We read back from
11833          * every mailbox register write to force the writes to be
11834          * posted to the chip in order.
11835          */
11836         if (pci_dev_present(write_reorder_chipsets) &&
11837             !(tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS))
11838                 tp->tg3_flags |= TG3_FLAG_MBOX_WRITE_REORDER;
11839
11840         pci_read_config_byte(tp->pdev, PCI_CACHE_LINE_SIZE,
11841                              &tp->pci_cacheline_sz);
11842         pci_read_config_byte(tp->pdev, PCI_LATENCY_TIMER,
11843                              &tp->pci_lat_timer);
11844         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 &&
11845             tp->pci_lat_timer < 64) {
11846                 tp->pci_lat_timer = 64;
11847                 pci_write_config_byte(tp->pdev, PCI_LATENCY_TIMER,
11848                                       tp->pci_lat_timer);
11849         }
11850
11851         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5700_BX) {
11852                 /* 5700 BX chips need to have their TX producer index
11853                  * mailboxes written twice to workaround a bug.
11854                  */
11855                 tp->tg3_flags |= TG3_FLAG_TXD_MBOX_HWBUG;
11856
11857                 /* If we are in PCI-X mode, enable register write workaround.
11858                  *
11859                  * The workaround is to use indirect register accesses
11860                  * for all chip writes not to mailbox registers.
11861                  */
11862                 if (tp->tg3_flags & TG3_FLAG_PCIX_MODE) {
11863                         u32 pm_reg;
11864
11865                         tp->tg3_flags |= TG3_FLAG_PCIX_TARGET_HWBUG;
11866
11867                         /* The chip can have it's power management PCI config
11868                          * space registers clobbered due to this bug.
11869                          * So explicitly force the chip into D0 here.
11870                          */
11871                         pci_read_config_dword(tp->pdev,
11872                                               tp->pm_cap + PCI_PM_CTRL,
11873                                               &pm_reg);
11874                         pm_reg &= ~PCI_PM_CTRL_STATE_MASK;
11875                         pm_reg |= PCI_PM_CTRL_PME_ENABLE | 0 /* D0 */;
11876                         pci_write_config_dword(tp->pdev,
11877                                                tp->pm_cap + PCI_PM_CTRL,
11878                                                pm_reg);
11879
11880                         /* Also, force SERR#/PERR# in PCI command. */
11881                         pci_read_config_word(tp->pdev, PCI_COMMAND, &pci_cmd);
11882                         pci_cmd |= PCI_COMMAND_PARITY | PCI_COMMAND_SERR;
11883                         pci_write_config_word(tp->pdev, PCI_COMMAND, pci_cmd);
11884                 }
11885         }
11886
11887         if ((pci_state_reg & PCISTATE_BUS_SPEED_HIGH) != 0)
11888                 tp->tg3_flags |= TG3_FLAG_PCI_HIGH_SPEED;
11889         if ((pci_state_reg & PCISTATE_BUS_32BIT) != 0)
11890                 tp->tg3_flags |= TG3_FLAG_PCI_32BIT;
11891
11892         /* Chip-specific fixup from Broadcom driver */
11893         if ((tp->pci_chip_rev_id == CHIPREV_ID_5704_A0) &&
11894             (!(pci_state_reg & PCISTATE_RETRY_SAME_DMA))) {
11895                 pci_state_reg |= PCISTATE_RETRY_SAME_DMA;
11896                 pci_write_config_dword(tp->pdev, TG3PCI_PCISTATE, pci_state_reg);
11897         }
11898
11899         /* Default fast path register access methods */
11900         tp->read32 = tg3_read32;
11901         tp->write32 = tg3_write32;
11902         tp->read32_mbox = tg3_read32;
11903         tp->write32_mbox = tg3_write32;
11904         tp->write32_tx_mbox = tg3_write32;
11905         tp->write32_rx_mbox = tg3_write32;
11906
11907         /* Various workaround register access methods */
11908         if (tp->tg3_flags & TG3_FLAG_PCIX_TARGET_HWBUG)
11909                 tp->write32 = tg3_write_indirect_reg32;
11910         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701 ||
11911                  ((tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) &&
11912                   tp->pci_chip_rev_id == CHIPREV_ID_5750_A0)) {
11913                 /*
11914                  * Back to back register writes can cause problems on these
11915                  * chips, the workaround is to read back all reg writes
11916                  * except those to mailbox regs.
11917                  *
11918                  * See tg3_write_indirect_reg32().
11919                  */
11920                 tp->write32 = tg3_write_flush_reg32;
11921         }
11922
11923
11924         if ((tp->tg3_flags & TG3_FLAG_TXD_MBOX_HWBUG) ||
11925             (tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER)) {
11926                 tp->write32_tx_mbox = tg3_write32_tx_mbox;
11927                 if (tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER)
11928                         tp->write32_rx_mbox = tg3_write_flush_reg32;
11929         }
11930
11931         if (tp->tg3_flags2 & TG3_FLG2_ICH_WORKAROUND) {
11932                 tp->read32 = tg3_read_indirect_reg32;
11933                 tp->write32 = tg3_write_indirect_reg32;
11934                 tp->read32_mbox = tg3_read_indirect_mbox;
11935                 tp->write32_mbox = tg3_write_indirect_mbox;
11936                 tp->write32_tx_mbox = tg3_write_indirect_mbox;
11937                 tp->write32_rx_mbox = tg3_write_indirect_mbox;
11938
11939                 iounmap(tp->regs);
11940                 tp->regs = NULL;
11941
11942                 pci_read_config_word(tp->pdev, PCI_COMMAND, &pci_cmd);
11943                 pci_cmd &= ~PCI_COMMAND_MEMORY;
11944                 pci_write_config_word(tp->pdev, PCI_COMMAND, pci_cmd);
11945         }
11946         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
11947                 tp->read32_mbox = tg3_read32_mbox_5906;
11948                 tp->write32_mbox = tg3_write32_mbox_5906;
11949                 tp->write32_tx_mbox = tg3_write32_mbox_5906;
11950                 tp->write32_rx_mbox = tg3_write32_mbox_5906;
11951         }
11952
11953         if (tp->write32 == tg3_write_indirect_reg32 ||
11954             ((tp->tg3_flags & TG3_FLAG_PCIX_MODE) &&
11955              (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
11956               GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701)))
11957                 tp->tg3_flags |= TG3_FLAG_SRAM_USE_CONFIG;
11958
11959         /* Get eeprom hw config before calling tg3_set_power_state().
11960          * In particular, the TG3_FLG2_IS_NIC flag must be
11961          * determined before calling tg3_set_power_state() so that
11962          * we know whether or not to switch out of Vaux power.
11963          * When the flag is set, it means that GPIO1 is used for eeprom
11964          * write protect and also implies that it is a LOM where GPIOs
11965          * are not used to switch power.
11966          */
11967         tg3_get_eeprom_hw_cfg(tp);
11968
11969         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) {
11970                 /* Allow reads and writes to the
11971                  * APE register and memory space.
11972                  */
11973                 pci_state_reg |= PCISTATE_ALLOW_APE_CTLSPC_WR |
11974                                  PCISTATE_ALLOW_APE_SHMEM_WR;
11975                 pci_write_config_dword(tp->pdev, TG3PCI_PCISTATE,
11976                                        pci_state_reg);
11977         }
11978
11979         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
11980             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
11981             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
11982             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
11983                 tp->tg3_flags |= TG3_FLAG_CPMU_PRESENT;
11984
11985         /* Set up tp->grc_local_ctrl before calling tg3_set_power_state().
11986          * GPIO1 driven high will bring 5700's external PHY out of reset.
11987          * It is also used as eeprom write protect on LOMs.
11988          */
11989         tp->grc_local_ctrl = GRC_LCLCTRL_INT_ON_ATTN | GRC_LCLCTRL_AUTO_SEEPROM;
11990         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700) ||
11991             (tp->tg3_flags & TG3_FLAG_EEPROM_WRITE_PROT))
11992                 tp->grc_local_ctrl |= (GRC_LCLCTRL_GPIO_OE1 |
11993                                        GRC_LCLCTRL_GPIO_OUTPUT1);
11994         /* Unused GPIO3 must be driven as output on 5752 because there
11995          * are no pull-up resistors on unused GPIO pins.
11996          */
11997         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752)
11998                 tp->grc_local_ctrl |= GRC_LCLCTRL_GPIO_OE3;
11999
12000         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755 ||
12001             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
12002                 tp->grc_local_ctrl |= GRC_LCLCTRL_GPIO_UART_SEL;
12003
12004         if (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5761) {
12005                 /* Turn off the debug UART. */
12006                 tp->grc_local_ctrl |= GRC_LCLCTRL_GPIO_UART_SEL;
12007                 if (tp->tg3_flags2 & TG3_FLG2_IS_NIC)
12008                         /* Keep VMain power. */
12009                         tp->grc_local_ctrl |= GRC_LCLCTRL_GPIO_OE0 |
12010                                               GRC_LCLCTRL_GPIO_OUTPUT0;
12011         }
12012
12013         /* Force the chip into D0. */
12014         err = tg3_set_power_state(tp, PCI_D0);
12015         if (err) {
12016                 printk(KERN_ERR PFX "(%s) transition to D0 failed\n",
12017                        pci_name(tp->pdev));
12018                 return err;
12019         }
12020
12021         /* Derive initial jumbo mode from MTU assigned in
12022          * ether_setup() via the alloc_etherdev() call
12023          */
12024         if (tp->dev->mtu > ETH_DATA_LEN &&
12025             !(tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
12026                 tp->tg3_flags |= TG3_FLAG_JUMBO_RING_ENABLE;
12027
12028         /* Determine WakeOnLan speed to use. */
12029         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
12030             tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
12031             tp->pci_chip_rev_id == CHIPREV_ID_5701_B0 ||
12032             tp->pci_chip_rev_id == CHIPREV_ID_5701_B2) {
12033                 tp->tg3_flags &= ~(TG3_FLAG_WOL_SPEED_100MB);
12034         } else {
12035                 tp->tg3_flags |= TG3_FLAG_WOL_SPEED_100MB;
12036         }
12037
12038         /* A few boards don't want Ethernet@WireSpeed phy feature */
12039         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700) ||
12040             ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) &&
12041              (tp->pci_chip_rev_id != CHIPREV_ID_5705_A0) &&
12042              (tp->pci_chip_rev_id != CHIPREV_ID_5705_A1)) ||
12043             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) ||
12044             (tp->tg3_flags2 & TG3_FLG2_ANY_SERDES))
12045                 tp->tg3_flags2 |= TG3_FLG2_NO_ETH_WIRE_SPEED;
12046
12047         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5703_AX ||
12048             GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5704_AX)
12049                 tp->tg3_flags2 |= TG3_FLG2_PHY_ADC_BUG;
12050         if (tp->pci_chip_rev_id == CHIPREV_ID_5704_A0)
12051                 tp->tg3_flags2 |= TG3_FLG2_PHY_5704_A0_BUG;
12052
12053         if ((tp->tg3_flags2 & TG3_FLG2_5705_PLUS) &&
12054             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5906 &&
12055             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5785 &&
12056             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_57780) {
12057                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755 ||
12058                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5787 ||
12059                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
12060                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761) {
12061                         if (tp->pdev->device != PCI_DEVICE_ID_TIGON3_5756 &&
12062                             tp->pdev->device != PCI_DEVICE_ID_TIGON3_5722)
12063                                 tp->tg3_flags2 |= TG3_FLG2_PHY_JITTER_BUG;
12064                         if (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5755M)
12065                                 tp->tg3_flags2 |= TG3_FLG2_PHY_ADJUST_TRIM;
12066                 } else
12067                         tp->tg3_flags2 |= TG3_FLG2_PHY_BER_BUG;
12068         }
12069
12070         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 &&
12071             GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5784_AX) {
12072                 tp->phy_otp = tg3_read_otp_phycfg(tp);
12073                 if (tp->phy_otp == 0)
12074                         tp->phy_otp = TG3_OTP_DEFAULT;
12075         }
12076
12077         if (tp->tg3_flags & TG3_FLAG_CPMU_PRESENT)
12078                 tp->mi_mode = MAC_MI_MODE_500KHZ_CONST;
12079         else
12080                 tp->mi_mode = MAC_MI_MODE_BASE;
12081
12082         tp->coalesce_mode = 0;
12083         if (GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5700_AX &&
12084             GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5700_BX)
12085                 tp->coalesce_mode |= HOSTCC_MODE_32BYTE;
12086
12087         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
12088             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
12089                 tp->tg3_flags3 |= TG3_FLG3_USE_PHYLIB;
12090
12091         err = tg3_mdio_init(tp);
12092         if (err)
12093                 return err;
12094
12095         /* Initialize data/descriptor byte/word swapping. */
12096         val = tr32(GRC_MODE);
12097         val &= GRC_MODE_HOST_STACKUP;
12098         tw32(GRC_MODE, val | tp->grc_mode);
12099
12100         tg3_switch_clocks(tp);
12101
12102         /* Clear this out for sanity. */
12103         tw32(TG3PCI_MEM_WIN_BASE_ADDR, 0);
12104
12105         pci_read_config_dword(tp->pdev, TG3PCI_PCISTATE,
12106                               &pci_state_reg);
12107         if ((pci_state_reg & PCISTATE_CONV_PCI_MODE) == 0 &&
12108             (tp->tg3_flags & TG3_FLAG_PCIX_TARGET_HWBUG) == 0) {
12109                 u32 chiprevid = GET_CHIP_REV_ID(tp->misc_host_ctrl);
12110
12111                 if (chiprevid == CHIPREV_ID_5701_A0 ||
12112                     chiprevid == CHIPREV_ID_5701_B0 ||
12113                     chiprevid == CHIPREV_ID_5701_B2 ||
12114                     chiprevid == CHIPREV_ID_5701_B5) {
12115                         void __iomem *sram_base;
12116
12117                         /* Write some dummy words into the SRAM status block
12118                          * area, see if it reads back correctly.  If the return
12119                          * value is bad, force enable the PCIX workaround.
12120                          */
12121                         sram_base = tp->regs + NIC_SRAM_WIN_BASE + NIC_SRAM_STATS_BLK;
12122
12123                         writel(0x00000000, sram_base);
12124                         writel(0x00000000, sram_base + 4);
12125                         writel(0xffffffff, sram_base + 4);
12126                         if (readl(sram_base) != 0x00000000)
12127                                 tp->tg3_flags |= TG3_FLAG_PCIX_TARGET_HWBUG;
12128                 }
12129         }
12130
12131         udelay(50);
12132         tg3_nvram_init(tp);
12133
12134         grc_misc_cfg = tr32(GRC_MISC_CFG);
12135         grc_misc_cfg &= GRC_MISC_CFG_BOARD_ID_MASK;
12136
12137         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705 &&
12138             (grc_misc_cfg == GRC_MISC_CFG_BOARD_ID_5788 ||
12139              grc_misc_cfg == GRC_MISC_CFG_BOARD_ID_5788M))
12140                 tp->tg3_flags2 |= TG3_FLG2_IS_5788;
12141
12142         if (!(tp->tg3_flags2 & TG3_FLG2_IS_5788) &&
12143             (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700))
12144                 tp->tg3_flags |= TG3_FLAG_TAGGED_STATUS;
12145         if (tp->tg3_flags & TG3_FLAG_TAGGED_STATUS) {
12146                 tp->coalesce_mode |= (HOSTCC_MODE_CLRTICK_RXBD |
12147                                       HOSTCC_MODE_CLRTICK_TXBD);
12148
12149                 tp->misc_host_ctrl |= MISC_HOST_CTRL_TAGGED_STATUS;
12150                 pci_write_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL,
12151                                        tp->misc_host_ctrl);
12152         }
12153
12154         /* Preserve the APE MAC_MODE bits */
12155         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
12156                 tp->mac_mode = tr32(MAC_MODE) |
12157                                MAC_MODE_APE_TX_EN | MAC_MODE_APE_RX_EN;
12158         else
12159                 tp->mac_mode = TG3_DEF_MAC_MODE;
12160
12161         /* these are limited to 10/100 only */
12162         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 &&
12163              (grc_misc_cfg == 0x8000 || grc_misc_cfg == 0x4000)) ||
12164             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705 &&
12165              tp->pdev->vendor == PCI_VENDOR_ID_BROADCOM &&
12166              (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5901 ||
12167               tp->pdev->device == PCI_DEVICE_ID_TIGON3_5901_2 ||
12168               tp->pdev->device == PCI_DEVICE_ID_TIGON3_5705F)) ||
12169             (tp->pdev->vendor == PCI_VENDOR_ID_BROADCOM &&
12170              (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5751F ||
12171               tp->pdev->device == PCI_DEVICE_ID_TIGON3_5753F ||
12172               tp->pdev->device == PCI_DEVICE_ID_TIGON3_5787F)) ||
12173             tp->pdev->device == TG3PCI_DEVICE_TIGON3_57790 ||
12174             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
12175                 tp->tg3_flags |= TG3_FLAG_10_100_ONLY;
12176
12177         err = tg3_phy_probe(tp);
12178         if (err) {
12179                 printk(KERN_ERR PFX "(%s) phy probe failed, err %d\n",
12180                        pci_name(tp->pdev), err);
12181                 /* ... but do not return immediately ... */
12182                 tg3_mdio_fini(tp);
12183         }
12184
12185         tg3_read_partno(tp);
12186         tg3_read_fw_ver(tp);
12187
12188         if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) {
12189                 tp->tg3_flags &= ~TG3_FLAG_USE_MI_INTERRUPT;
12190         } else {
12191                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700)
12192                         tp->tg3_flags |= TG3_FLAG_USE_MI_INTERRUPT;
12193                 else
12194                         tp->tg3_flags &= ~TG3_FLAG_USE_MI_INTERRUPT;
12195         }
12196
12197         /* 5700 {AX,BX} chips have a broken status block link
12198          * change bit implementation, so we must use the
12199          * status register in those cases.
12200          */
12201         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700)
12202                 tp->tg3_flags |= TG3_FLAG_USE_LINKCHG_REG;
12203         else
12204                 tp->tg3_flags &= ~TG3_FLAG_USE_LINKCHG_REG;
12205
12206         /* The led_ctrl is set during tg3_phy_probe, here we might
12207          * have to force the link status polling mechanism based
12208          * upon subsystem IDs.
12209          */
12210         if (tp->pdev->subsystem_vendor == PCI_VENDOR_ID_DELL &&
12211             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701 &&
12212             !(tp->tg3_flags2 & TG3_FLG2_PHY_SERDES)) {
12213                 tp->tg3_flags |= (TG3_FLAG_USE_MI_INTERRUPT |
12214                                   TG3_FLAG_USE_LINKCHG_REG);
12215         }
12216
12217         /* For all SERDES we poll the MAC status register. */
12218         if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES)
12219                 tp->tg3_flags |= TG3_FLAG_POLL_SERDES;
12220         else
12221                 tp->tg3_flags &= ~TG3_FLAG_POLL_SERDES;
12222
12223         tp->rx_offset = NET_IP_ALIGN;
12224         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701 &&
12225             (tp->tg3_flags & TG3_FLAG_PCIX_MODE) != 0)
12226                 tp->rx_offset = 0;
12227
12228         tp->rx_std_max_post = TG3_RX_RING_SIZE;
12229
12230         /* Increment the rx prod index on the rx std ring by at most
12231          * 8 for these chips to workaround hw errata.
12232          */
12233         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750 ||
12234             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752 ||
12235             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755)
12236                 tp->rx_std_max_post = 8;
12237
12238         if (tp->tg3_flags & TG3_FLAG_ASPM_WORKAROUND)
12239                 tp->pwrmgmt_thresh = tr32(PCIE_PWR_MGMT_THRESH) &
12240                                      PCIE_PWR_MGMT_L1_THRESH_MSK;
12241
12242         return err;
12243 }
12244
12245 #ifdef CONFIG_SPARC
12246 static int __devinit tg3_get_macaddr_sparc(struct tg3 *tp)
12247 {
12248         struct net_device *dev = tp->dev;
12249         struct pci_dev *pdev = tp->pdev;
12250         struct device_node *dp = pci_device_to_OF_node(pdev);
12251         const unsigned char *addr;
12252         int len;
12253
12254         addr = of_get_property(dp, "local-mac-address", &len);
12255         if (addr && len == 6) {
12256                 memcpy(dev->dev_addr, addr, 6);
12257                 memcpy(dev->perm_addr, dev->dev_addr, 6);
12258                 return 0;
12259         }
12260         return -ENODEV;
12261 }
12262
12263 static int __devinit tg3_get_default_macaddr_sparc(struct tg3 *tp)
12264 {
12265         struct net_device *dev = tp->dev;
12266
12267         memcpy(dev->dev_addr, idprom->id_ethaddr, 6);
12268         memcpy(dev->perm_addr, idprom->id_ethaddr, 6);
12269         return 0;
12270 }
12271 #endif
12272
12273 static int __devinit tg3_get_device_address(struct tg3 *tp)
12274 {
12275         struct net_device *dev = tp->dev;
12276         u32 hi, lo, mac_offset;
12277         int addr_ok = 0;
12278
12279 #ifdef CONFIG_SPARC
12280         if (!tg3_get_macaddr_sparc(tp))
12281                 return 0;
12282 #endif
12283
12284         mac_offset = 0x7c;
12285         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) ||
12286             (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
12287                 if (tr32(TG3PCI_DUAL_MAC_CTRL) & DUAL_MAC_CTRL_ID)
12288                         mac_offset = 0xcc;
12289                 if (tg3_nvram_lock(tp))
12290                         tw32_f(NVRAM_CMD, NVRAM_CMD_RESET);
12291                 else
12292                         tg3_nvram_unlock(tp);
12293         }
12294         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
12295                 mac_offset = 0x10;
12296
12297         /* First try to get it from MAC address mailbox. */
12298         tg3_read_mem(tp, NIC_SRAM_MAC_ADDR_HIGH_MBOX, &hi);
12299         if ((hi >> 16) == 0x484b) {
12300                 dev->dev_addr[0] = (hi >>  8) & 0xff;
12301                 dev->dev_addr[1] = (hi >>  0) & 0xff;
12302
12303                 tg3_read_mem(tp, NIC_SRAM_MAC_ADDR_LOW_MBOX, &lo);
12304                 dev->dev_addr[2] = (lo >> 24) & 0xff;
12305                 dev->dev_addr[3] = (lo >> 16) & 0xff;
12306                 dev->dev_addr[4] = (lo >>  8) & 0xff;
12307                 dev->dev_addr[5] = (lo >>  0) & 0xff;
12308
12309                 /* Some old bootcode may report a 0 MAC address in SRAM */
12310                 addr_ok = is_valid_ether_addr(&dev->dev_addr[0]);
12311         }
12312         if (!addr_ok) {
12313                 /* Next, try NVRAM. */
12314                 if (!tg3_nvram_read(tp, mac_offset + 0, &hi) &&
12315                     !tg3_nvram_read(tp, mac_offset + 4, &lo)) {
12316                         dev->dev_addr[0] = ((hi >> 16) & 0xff);
12317                         dev->dev_addr[1] = ((hi >> 24) & 0xff);
12318                         dev->dev_addr[2] = ((lo >>  0) & 0xff);
12319                         dev->dev_addr[3] = ((lo >>  8) & 0xff);
12320                         dev->dev_addr[4] = ((lo >> 16) & 0xff);
12321                         dev->dev_addr[5] = ((lo >> 24) & 0xff);
12322                 }
12323                 /* Finally just fetch it out of the MAC control regs. */
12324                 else {
12325                         hi = tr32(MAC_ADDR_0_HIGH);
12326                         lo = tr32(MAC_ADDR_0_LOW);
12327
12328                         dev->dev_addr[5] = lo & 0xff;
12329                         dev->dev_addr[4] = (lo >> 8) & 0xff;
12330                         dev->dev_addr[3] = (lo >> 16) & 0xff;
12331                         dev->dev_addr[2] = (lo >> 24) & 0xff;
12332                         dev->dev_addr[1] = hi & 0xff;
12333                         dev->dev_addr[0] = (hi >> 8) & 0xff;
12334                 }
12335         }
12336
12337         if (!is_valid_ether_addr(&dev->dev_addr[0])) {
12338 #ifdef CONFIG_SPARC
12339                 if (!tg3_get_default_macaddr_sparc(tp))
12340                         return 0;
12341 #endif
12342                 return -EINVAL;
12343         }
12344         memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
12345         return 0;
12346 }
12347
12348 #define BOUNDARY_SINGLE_CACHELINE       1
12349 #define BOUNDARY_MULTI_CACHELINE        2
12350
12351 static u32 __devinit tg3_calc_dma_bndry(struct tg3 *tp, u32 val)
12352 {
12353         int cacheline_size;
12354         u8 byte;
12355         int goal;
12356
12357         pci_read_config_byte(tp->pdev, PCI_CACHE_LINE_SIZE, &byte);
12358         if (byte == 0)
12359                 cacheline_size = 1024;
12360         else
12361                 cacheline_size = (int) byte * 4;
12362
12363         /* On 5703 and later chips, the boundary bits have no
12364          * effect.
12365          */
12366         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700 &&
12367             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701 &&
12368             !(tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS))
12369                 goto out;
12370
12371 #if defined(CONFIG_PPC64) || defined(CONFIG_IA64) || defined(CONFIG_PARISC)
12372         goal = BOUNDARY_MULTI_CACHELINE;
12373 #else
12374 #if defined(CONFIG_SPARC64) || defined(CONFIG_ALPHA)
12375         goal = BOUNDARY_SINGLE_CACHELINE;
12376 #else
12377         goal = 0;
12378 #endif
12379 #endif
12380
12381         if (!goal)
12382                 goto out;
12383
12384         /* PCI controllers on most RISC systems tend to disconnect
12385          * when a device tries to burst across a cache-line boundary.
12386          * Therefore, letting tg3 do so just wastes PCI bandwidth.
12387          *
12388          * Unfortunately, for PCI-E there are only limited
12389          * write-side controls for this, and thus for reads
12390          * we will still get the disconnects.  We'll also waste
12391          * these PCI cycles for both read and write for chips
12392          * other than 5700 and 5701 which do not implement the
12393          * boundary bits.
12394          */
12395         if ((tp->tg3_flags & TG3_FLAG_PCIX_MODE) &&
12396             !(tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS)) {
12397                 switch (cacheline_size) {
12398                 case 16:
12399                 case 32:
12400                 case 64:
12401                 case 128:
12402                         if (goal == BOUNDARY_SINGLE_CACHELINE) {
12403                                 val |= (DMA_RWCTRL_READ_BNDRY_128_PCIX |
12404                                         DMA_RWCTRL_WRITE_BNDRY_128_PCIX);
12405                         } else {
12406                                 val |= (DMA_RWCTRL_READ_BNDRY_384_PCIX |
12407                                         DMA_RWCTRL_WRITE_BNDRY_384_PCIX);
12408                         }
12409                         break;
12410
12411                 case 256:
12412                         val |= (DMA_RWCTRL_READ_BNDRY_256_PCIX |
12413                                 DMA_RWCTRL_WRITE_BNDRY_256_PCIX);
12414                         break;
12415
12416                 default:
12417                         val |= (DMA_RWCTRL_READ_BNDRY_384_PCIX |
12418                                 DMA_RWCTRL_WRITE_BNDRY_384_PCIX);
12419                         break;
12420                 }
12421         } else if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) {
12422                 switch (cacheline_size) {
12423                 case 16:
12424                 case 32:
12425                 case 64:
12426                         if (goal == BOUNDARY_SINGLE_CACHELINE) {
12427                                 val &= ~DMA_RWCTRL_WRITE_BNDRY_DISAB_PCIE;
12428                                 val |= DMA_RWCTRL_WRITE_BNDRY_64_PCIE;
12429                                 break;
12430                         }
12431                         /* fallthrough */
12432                 case 128:
12433                 default:
12434                         val &= ~DMA_RWCTRL_WRITE_BNDRY_DISAB_PCIE;
12435                         val |= DMA_RWCTRL_WRITE_BNDRY_128_PCIE;
12436                         break;
12437                 }
12438         } else {
12439                 switch (cacheline_size) {
12440                 case 16:
12441                         if (goal == BOUNDARY_SINGLE_CACHELINE) {
12442                                 val |= (DMA_RWCTRL_READ_BNDRY_16 |
12443                                         DMA_RWCTRL_WRITE_BNDRY_16);
12444                                 break;
12445                         }
12446                         /* fallthrough */
12447                 case 32:
12448                         if (goal == BOUNDARY_SINGLE_CACHELINE) {
12449                                 val |= (DMA_RWCTRL_READ_BNDRY_32 |
12450                                         DMA_RWCTRL_WRITE_BNDRY_32);
12451                                 break;
12452                         }
12453                         /* fallthrough */
12454                 case 64:
12455                         if (goal == BOUNDARY_SINGLE_CACHELINE) {
12456                                 val |= (DMA_RWCTRL_READ_BNDRY_64 |
12457                                         DMA_RWCTRL_WRITE_BNDRY_64);
12458                                 break;
12459                         }
12460                         /* fallthrough */
12461                 case 128:
12462                         if (goal == BOUNDARY_SINGLE_CACHELINE) {
12463                                 val |= (DMA_RWCTRL_READ_BNDRY_128 |
12464                                         DMA_RWCTRL_WRITE_BNDRY_128);
12465                                 break;
12466                         }
12467                         /* fallthrough */
12468                 case 256:
12469                         val |= (DMA_RWCTRL_READ_BNDRY_256 |
12470                                 DMA_RWCTRL_WRITE_BNDRY_256);
12471                         break;
12472                 case 512:
12473                         val |= (DMA_RWCTRL_READ_BNDRY_512 |
12474                                 DMA_RWCTRL_WRITE_BNDRY_512);
12475                         break;
12476                 case 1024:
12477                 default:
12478                         val |= (DMA_RWCTRL_READ_BNDRY_1024 |
12479                                 DMA_RWCTRL_WRITE_BNDRY_1024);
12480                         break;
12481                 }
12482         }
12483
12484 out:
12485         return val;
12486 }
12487
12488 static int __devinit tg3_do_test_dma(struct tg3 *tp, u32 *buf, dma_addr_t buf_dma, int size, int to_device)
12489 {
12490         struct tg3_internal_buffer_desc test_desc;
12491         u32 sram_dma_descs;
12492         int i, ret;
12493
12494         sram_dma_descs = NIC_SRAM_DMA_DESC_POOL_BASE;
12495
12496         tw32(FTQ_RCVBD_COMP_FIFO_ENQDEQ, 0);
12497         tw32(FTQ_RCVDATA_COMP_FIFO_ENQDEQ, 0);
12498         tw32(RDMAC_STATUS, 0);
12499         tw32(WDMAC_STATUS, 0);
12500
12501         tw32(BUFMGR_MODE, 0);
12502         tw32(FTQ_RESET, 0);
12503
12504         test_desc.addr_hi = ((u64) buf_dma) >> 32;
12505         test_desc.addr_lo = buf_dma & 0xffffffff;
12506         test_desc.nic_mbuf = 0x00002100;
12507         test_desc.len = size;
12508
12509         /*
12510          * HP ZX1 was seeing test failures for 5701 cards running at 33Mhz
12511          * the *second* time the tg3 driver was getting loaded after an
12512          * initial scan.
12513          *
12514          * Broadcom tells me:
12515          *   ...the DMA engine is connected to the GRC block and a DMA
12516          *   reset may affect the GRC block in some unpredictable way...
12517          *   The behavior of resets to individual blocks has not been tested.
12518          *
12519          * Broadcom noted the GRC reset will also reset all sub-components.
12520          */
12521         if (to_device) {
12522                 test_desc.cqid_sqid = (13 << 8) | 2;
12523
12524                 tw32_f(RDMAC_MODE, RDMAC_MODE_ENABLE);
12525                 udelay(40);
12526         } else {
12527                 test_desc.cqid_sqid = (16 << 8) | 7;
12528
12529                 tw32_f(WDMAC_MODE, WDMAC_MODE_ENABLE);
12530                 udelay(40);
12531         }
12532         test_desc.flags = 0x00000005;
12533
12534         for (i = 0; i < (sizeof(test_desc) / sizeof(u32)); i++) {
12535                 u32 val;
12536
12537                 val = *(((u32 *)&test_desc) + i);
12538                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR,
12539                                        sram_dma_descs + (i * sizeof(u32)));
12540                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_DATA, val);
12541         }
12542         pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, 0);
12543
12544         if (to_device) {
12545                 tw32(FTQ_DMA_HIGH_READ_FIFO_ENQDEQ, sram_dma_descs);
12546         } else {
12547                 tw32(FTQ_DMA_HIGH_WRITE_FIFO_ENQDEQ, sram_dma_descs);
12548         }
12549
12550         ret = -ENODEV;
12551         for (i = 0; i < 40; i++) {
12552                 u32 val;
12553
12554                 if (to_device)
12555                         val = tr32(FTQ_RCVBD_COMP_FIFO_ENQDEQ);
12556                 else
12557                         val = tr32(FTQ_RCVDATA_COMP_FIFO_ENQDEQ);
12558                 if ((val & 0xffff) == sram_dma_descs) {
12559                         ret = 0;
12560                         break;
12561                 }
12562
12563                 udelay(100);
12564         }
12565
12566         return ret;
12567 }
12568
12569 #define TEST_BUFFER_SIZE        0x2000
12570
12571 static int __devinit tg3_test_dma(struct tg3 *tp)
12572 {
12573         dma_addr_t buf_dma;
12574         u32 *buf, saved_dma_rwctrl;
12575         int ret;
12576
12577         buf = pci_alloc_consistent(tp->pdev, TEST_BUFFER_SIZE, &buf_dma);
12578         if (!buf) {
12579                 ret = -ENOMEM;
12580                 goto out_nofree;
12581         }
12582
12583         tp->dma_rwctrl = ((0x7 << DMA_RWCTRL_PCI_WRITE_CMD_SHIFT) |
12584                           (0x6 << DMA_RWCTRL_PCI_READ_CMD_SHIFT));
12585
12586         tp->dma_rwctrl = tg3_calc_dma_bndry(tp, tp->dma_rwctrl);
12587
12588         if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) {
12589                 /* DMA read watermark not used on PCIE */
12590                 tp->dma_rwctrl |= 0x00180000;
12591         } else if (!(tp->tg3_flags & TG3_FLAG_PCIX_MODE)) {
12592                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705 ||
12593                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750)
12594                         tp->dma_rwctrl |= 0x003f0000;
12595                 else
12596                         tp->dma_rwctrl |= 0x003f000f;
12597         } else {
12598                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
12599                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
12600                         u32 ccval = (tr32(TG3PCI_CLOCK_CTRL) & 0x1f);
12601                         u32 read_water = 0x7;
12602
12603                         /* If the 5704 is behind the EPB bridge, we can
12604                          * do the less restrictive ONE_DMA workaround for
12605                          * better performance.
12606                          */
12607                         if ((tp->tg3_flags & TG3_FLAG_40BIT_DMA_BUG) &&
12608                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704)
12609                                 tp->dma_rwctrl |= 0x8000;
12610                         else if (ccval == 0x6 || ccval == 0x7)
12611                                 tp->dma_rwctrl |= DMA_RWCTRL_ONE_DMA;
12612
12613                         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703)
12614                                 read_water = 4;
12615                         /* Set bit 23 to enable PCIX hw bug fix */
12616                         tp->dma_rwctrl |=
12617                                 (read_water << DMA_RWCTRL_READ_WATER_SHIFT) |
12618                                 (0x3 << DMA_RWCTRL_WRITE_WATER_SHIFT) |
12619                                 (1 << 23);
12620                 } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780) {
12621                         /* 5780 always in PCIX mode */
12622                         tp->dma_rwctrl |= 0x00144000;
12623                 } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714) {
12624                         /* 5714 always in PCIX mode */
12625                         tp->dma_rwctrl |= 0x00148000;
12626                 } else {
12627                         tp->dma_rwctrl |= 0x001b000f;
12628                 }
12629         }
12630
12631         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
12632             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704)
12633                 tp->dma_rwctrl &= 0xfffffff0;
12634
12635         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
12636             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
12637                 /* Remove this if it causes problems for some boards. */
12638                 tp->dma_rwctrl |= DMA_RWCTRL_USE_MEM_READ_MULT;
12639
12640                 /* On 5700/5701 chips, we need to set this bit.
12641                  * Otherwise the chip will issue cacheline transactions
12642                  * to streamable DMA memory with not all the byte
12643                  * enables turned on.  This is an error on several
12644                  * RISC PCI controllers, in particular sparc64.
12645                  *
12646                  * On 5703/5704 chips, this bit has been reassigned
12647                  * a different meaning.  In particular, it is used
12648                  * on those chips to enable a PCI-X workaround.
12649                  */
12650                 tp->dma_rwctrl |= DMA_RWCTRL_ASSERT_ALL_BE;
12651         }
12652
12653         tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
12654
12655 #if 0
12656         /* Unneeded, already done by tg3_get_invariants.  */
12657         tg3_switch_clocks(tp);
12658 #endif
12659
12660         ret = 0;
12661         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700 &&
12662             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701)
12663                 goto out;
12664
12665         /* It is best to perform DMA test with maximum write burst size
12666          * to expose the 5700/5701 write DMA bug.
12667          */
12668         saved_dma_rwctrl = tp->dma_rwctrl;
12669         tp->dma_rwctrl &= ~DMA_RWCTRL_WRITE_BNDRY_MASK;
12670         tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
12671
12672         while (1) {
12673                 u32 *p = buf, i;
12674
12675                 for (i = 0; i < TEST_BUFFER_SIZE / sizeof(u32); i++)
12676                         p[i] = i;
12677
12678                 /* Send the buffer to the chip. */
12679                 ret = tg3_do_test_dma(tp, buf, buf_dma, TEST_BUFFER_SIZE, 1);
12680                 if (ret) {
12681                         printk(KERN_ERR "tg3_test_dma() Write the buffer failed %d\n", ret);
12682                         break;
12683                 }
12684
12685 #if 0
12686                 /* validate data reached card RAM correctly. */
12687                 for (i = 0; i < TEST_BUFFER_SIZE / sizeof(u32); i++) {
12688                         u32 val;
12689                         tg3_read_mem(tp, 0x2100 + (i*4), &val);
12690                         if (le32_to_cpu(val) != p[i]) {
12691                                 printk(KERN_ERR "  tg3_test_dma()  Card buffer corrupted on write! (%d != %d)\n", val, i);
12692                                 /* ret = -ENODEV here? */
12693                         }
12694                         p[i] = 0;
12695                 }
12696 #endif
12697                 /* Now read it back. */
12698                 ret = tg3_do_test_dma(tp, buf, buf_dma, TEST_BUFFER_SIZE, 0);
12699                 if (ret) {
12700                         printk(KERN_ERR "tg3_test_dma() Read the buffer failed %d\n", ret);
12701
12702                         break;
12703                 }
12704
12705                 /* Verify it. */
12706                 for (i = 0; i < TEST_BUFFER_SIZE / sizeof(u32); i++) {
12707                         if (p[i] == i)
12708                                 continue;
12709
12710                         if ((tp->dma_rwctrl & DMA_RWCTRL_WRITE_BNDRY_MASK) !=
12711                             DMA_RWCTRL_WRITE_BNDRY_16) {
12712                                 tp->dma_rwctrl &= ~DMA_RWCTRL_WRITE_BNDRY_MASK;
12713                                 tp->dma_rwctrl |= DMA_RWCTRL_WRITE_BNDRY_16;
12714                                 tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
12715                                 break;
12716                         } else {
12717                                 printk(KERN_ERR "tg3_test_dma() buffer corrupted on read back! (%d != %d)\n", p[i], i);
12718                                 ret = -ENODEV;
12719                                 goto out;
12720                         }
12721                 }
12722
12723                 if (i == (TEST_BUFFER_SIZE / sizeof(u32))) {
12724                         /* Success. */
12725                         ret = 0;
12726                         break;
12727                 }
12728         }
12729         if ((tp->dma_rwctrl & DMA_RWCTRL_WRITE_BNDRY_MASK) !=
12730             DMA_RWCTRL_WRITE_BNDRY_16) {
12731                 static struct pci_device_id dma_wait_state_chipsets[] = {
12732                         { PCI_DEVICE(PCI_VENDOR_ID_APPLE,
12733                                      PCI_DEVICE_ID_APPLE_UNI_N_PCI15) },
12734                         { },
12735                 };
12736
12737                 /* DMA test passed without adjusting DMA boundary,
12738                  * now look for chipsets that are known to expose the
12739                  * DMA bug without failing the test.
12740                  */
12741                 if (pci_dev_present(dma_wait_state_chipsets)) {
12742                         tp->dma_rwctrl &= ~DMA_RWCTRL_WRITE_BNDRY_MASK;
12743                         tp->dma_rwctrl |= DMA_RWCTRL_WRITE_BNDRY_16;
12744                 }
12745                 else
12746                         /* Safe to use the calculated DMA boundary. */
12747                         tp->dma_rwctrl = saved_dma_rwctrl;
12748
12749                 tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
12750         }
12751
12752 out:
12753         pci_free_consistent(tp->pdev, TEST_BUFFER_SIZE, buf, buf_dma);
12754 out_nofree:
12755         return ret;
12756 }
12757
12758 static void __devinit tg3_init_link_config(struct tg3 *tp)
12759 {
12760         tp->link_config.advertising =
12761                 (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full |
12762                  ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full |
12763                  ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full |
12764                  ADVERTISED_Autoneg | ADVERTISED_MII);
12765         tp->link_config.speed = SPEED_INVALID;
12766         tp->link_config.duplex = DUPLEX_INVALID;
12767         tp->link_config.autoneg = AUTONEG_ENABLE;
12768         tp->link_config.active_speed = SPEED_INVALID;
12769         tp->link_config.active_duplex = DUPLEX_INVALID;
12770         tp->link_config.phy_is_low_power = 0;
12771         tp->link_config.orig_speed = SPEED_INVALID;
12772         tp->link_config.orig_duplex = DUPLEX_INVALID;
12773         tp->link_config.orig_autoneg = AUTONEG_INVALID;
12774 }
12775
12776 static void __devinit tg3_init_bufmgr_config(struct tg3 *tp)
12777 {
12778         if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
12779                 tp->bufmgr_config.mbuf_read_dma_low_water =
12780                         DEFAULT_MB_RDMA_LOW_WATER_5705;
12781                 tp->bufmgr_config.mbuf_mac_rx_low_water =
12782                         DEFAULT_MB_MACRX_LOW_WATER_5705;
12783                 tp->bufmgr_config.mbuf_high_water =
12784                         DEFAULT_MB_HIGH_WATER_5705;
12785                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
12786                         tp->bufmgr_config.mbuf_mac_rx_low_water =
12787                                 DEFAULT_MB_MACRX_LOW_WATER_5906;
12788                         tp->bufmgr_config.mbuf_high_water =
12789                                 DEFAULT_MB_HIGH_WATER_5906;
12790                 }
12791
12792                 tp->bufmgr_config.mbuf_read_dma_low_water_jumbo =
12793                         DEFAULT_MB_RDMA_LOW_WATER_JUMBO_5780;
12794                 tp->bufmgr_config.mbuf_mac_rx_low_water_jumbo =
12795                         DEFAULT_MB_MACRX_LOW_WATER_JUMBO_5780;
12796                 tp->bufmgr_config.mbuf_high_water_jumbo =
12797                         DEFAULT_MB_HIGH_WATER_JUMBO_5780;
12798         } else {
12799                 tp->bufmgr_config.mbuf_read_dma_low_water =
12800                         DEFAULT_MB_RDMA_LOW_WATER;
12801                 tp->bufmgr_config.mbuf_mac_rx_low_water =
12802                         DEFAULT_MB_MACRX_LOW_WATER;
12803                 tp->bufmgr_config.mbuf_high_water =
12804                         DEFAULT_MB_HIGH_WATER;
12805
12806                 tp->bufmgr_config.mbuf_read_dma_low_water_jumbo =
12807                         DEFAULT_MB_RDMA_LOW_WATER_JUMBO;
12808                 tp->bufmgr_config.mbuf_mac_rx_low_water_jumbo =
12809                         DEFAULT_MB_MACRX_LOW_WATER_JUMBO;
12810                 tp->bufmgr_config.mbuf_high_water_jumbo =
12811                         DEFAULT_MB_HIGH_WATER_JUMBO;
12812         }
12813
12814         tp->bufmgr_config.dma_low_water = DEFAULT_DMA_LOW_WATER;
12815         tp->bufmgr_config.dma_high_water = DEFAULT_DMA_HIGH_WATER;
12816 }
12817
12818 static char * __devinit tg3_phy_string(struct tg3 *tp)
12819 {
12820         switch (tp->phy_id & PHY_ID_MASK) {
12821         case PHY_ID_BCM5400:    return "5400";
12822         case PHY_ID_BCM5401:    return "5401";
12823         case PHY_ID_BCM5411:    return "5411";
12824         case PHY_ID_BCM5701:    return "5701";
12825         case PHY_ID_BCM5703:    return "5703";
12826         case PHY_ID_BCM5704:    return "5704";
12827         case PHY_ID_BCM5705:    return "5705";
12828         case PHY_ID_BCM5750:    return "5750";
12829         case PHY_ID_BCM5752:    return "5752";
12830         case PHY_ID_BCM5714:    return "5714";
12831         case PHY_ID_BCM5780:    return "5780";
12832         case PHY_ID_BCM5755:    return "5755";
12833         case PHY_ID_BCM5787:    return "5787";
12834         case PHY_ID_BCM5784:    return "5784";
12835         case PHY_ID_BCM5756:    return "5722/5756";
12836         case PHY_ID_BCM5906:    return "5906";
12837         case PHY_ID_BCM5761:    return "5761";
12838         case PHY_ID_BCM8002:    return "8002/serdes";
12839         case 0:                 return "serdes";
12840         default:                return "unknown";
12841         }
12842 }
12843
12844 static char * __devinit tg3_bus_string(struct tg3 *tp, char *str)
12845 {
12846         if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) {
12847                 strcpy(str, "PCI Express");
12848                 return str;
12849         } else if (tp->tg3_flags & TG3_FLAG_PCIX_MODE) {
12850                 u32 clock_ctrl = tr32(TG3PCI_CLOCK_CTRL) & 0x1f;
12851
12852                 strcpy(str, "PCIX:");
12853
12854                 if ((clock_ctrl == 7) ||
12855                     ((tr32(GRC_MISC_CFG) & GRC_MISC_CFG_BOARD_ID_MASK) ==
12856                      GRC_MISC_CFG_BOARD_ID_5704CIOBE))
12857                         strcat(str, "133MHz");
12858                 else if (clock_ctrl == 0)
12859                         strcat(str, "33MHz");
12860                 else if (clock_ctrl == 2)
12861                         strcat(str, "50MHz");
12862                 else if (clock_ctrl == 4)
12863                         strcat(str, "66MHz");
12864                 else if (clock_ctrl == 6)
12865                         strcat(str, "100MHz");
12866         } else {
12867                 strcpy(str, "PCI:");
12868                 if (tp->tg3_flags & TG3_FLAG_PCI_HIGH_SPEED)
12869                         strcat(str, "66MHz");
12870                 else
12871                         strcat(str, "33MHz");
12872         }
12873         if (tp->tg3_flags & TG3_FLAG_PCI_32BIT)
12874                 strcat(str, ":32-bit");
12875         else
12876                 strcat(str, ":64-bit");
12877         return str;
12878 }
12879
12880 static struct pci_dev * __devinit tg3_find_peer(struct tg3 *tp)
12881 {
12882         struct pci_dev *peer;
12883         unsigned int func, devnr = tp->pdev->devfn & ~7;
12884
12885         for (func = 0; func < 8; func++) {
12886                 peer = pci_get_slot(tp->pdev->bus, devnr | func);
12887                 if (peer && peer != tp->pdev)
12888                         break;
12889                 pci_dev_put(peer);
12890         }
12891         /* 5704 can be configured in single-port mode, set peer to
12892          * tp->pdev in that case.
12893          */
12894         if (!peer) {
12895                 peer = tp->pdev;
12896                 return peer;
12897         }
12898
12899         /*
12900          * We don't need to keep the refcount elevated; there's no way
12901          * to remove one half of this device without removing the other
12902          */
12903         pci_dev_put(peer);
12904
12905         return peer;
12906 }
12907
12908 static void __devinit tg3_init_coal(struct tg3 *tp)
12909 {
12910         struct ethtool_coalesce *ec = &tp->coal;
12911
12912         memset(ec, 0, sizeof(*ec));
12913         ec->cmd = ETHTOOL_GCOALESCE;
12914         ec->rx_coalesce_usecs = LOW_RXCOL_TICKS;
12915         ec->tx_coalesce_usecs = LOW_TXCOL_TICKS;
12916         ec->rx_max_coalesced_frames = LOW_RXMAX_FRAMES;
12917         ec->tx_max_coalesced_frames = LOW_TXMAX_FRAMES;
12918         ec->rx_coalesce_usecs_irq = DEFAULT_RXCOAL_TICK_INT;
12919         ec->tx_coalesce_usecs_irq = DEFAULT_TXCOAL_TICK_INT;
12920         ec->rx_max_coalesced_frames_irq = DEFAULT_RXCOAL_MAXF_INT;
12921         ec->tx_max_coalesced_frames_irq = DEFAULT_TXCOAL_MAXF_INT;
12922         ec->stats_block_coalesce_usecs = DEFAULT_STAT_COAL_TICKS;
12923
12924         if (tp->coalesce_mode & (HOSTCC_MODE_CLRTICK_RXBD |
12925                                  HOSTCC_MODE_CLRTICK_TXBD)) {
12926                 ec->rx_coalesce_usecs = LOW_RXCOL_TICKS_CLRTCKS;
12927                 ec->rx_coalesce_usecs_irq = DEFAULT_RXCOAL_TICK_INT_CLRTCKS;
12928                 ec->tx_coalesce_usecs = LOW_TXCOL_TICKS_CLRTCKS;
12929                 ec->tx_coalesce_usecs_irq = DEFAULT_TXCOAL_TICK_INT_CLRTCKS;
12930         }
12931
12932         if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
12933                 ec->rx_coalesce_usecs_irq = 0;
12934                 ec->tx_coalesce_usecs_irq = 0;
12935                 ec->stats_block_coalesce_usecs = 0;
12936         }
12937 }
12938
12939 static const struct net_device_ops tg3_netdev_ops = {
12940         .ndo_open               = tg3_open,
12941         .ndo_stop               = tg3_close,
12942         .ndo_start_xmit         = tg3_start_xmit,
12943         .ndo_get_stats          = tg3_get_stats,
12944         .ndo_validate_addr      = eth_validate_addr,
12945         .ndo_set_multicast_list = tg3_set_rx_mode,
12946         .ndo_set_mac_address    = tg3_set_mac_addr,
12947         .ndo_do_ioctl           = tg3_ioctl,
12948         .ndo_tx_timeout         = tg3_tx_timeout,
12949         .ndo_change_mtu         = tg3_change_mtu,
12950 #if TG3_VLAN_TAG_USED
12951         .ndo_vlan_rx_register   = tg3_vlan_rx_register,
12952 #endif
12953 #ifdef CONFIG_NET_POLL_CONTROLLER
12954         .ndo_poll_controller    = tg3_poll_controller,
12955 #endif
12956 };
12957
12958 static const struct net_device_ops tg3_netdev_ops_dma_bug = {
12959         .ndo_open               = tg3_open,
12960         .ndo_stop               = tg3_close,
12961         .ndo_start_xmit         = tg3_start_xmit_dma_bug,
12962         .ndo_get_stats          = tg3_get_stats,
12963         .ndo_validate_addr      = eth_validate_addr,
12964         .ndo_set_multicast_list = tg3_set_rx_mode,
12965         .ndo_set_mac_address    = tg3_set_mac_addr,
12966         .ndo_do_ioctl           = tg3_ioctl,
12967         .ndo_tx_timeout         = tg3_tx_timeout,
12968         .ndo_change_mtu         = tg3_change_mtu,
12969 #if TG3_VLAN_TAG_USED
12970         .ndo_vlan_rx_register   = tg3_vlan_rx_register,
12971 #endif
12972 #ifdef CONFIG_NET_POLL_CONTROLLER
12973         .ndo_poll_controller    = tg3_poll_controller,
12974 #endif
12975 };
12976
12977 static int __devinit tg3_init_one(struct pci_dev *pdev,
12978                                   const struct pci_device_id *ent)
12979 {
12980         static int tg3_version_printed = 0;
12981         struct net_device *dev;
12982         struct tg3 *tp;
12983         int err, pm_cap;
12984         char str[40];
12985         u64 dma_mask, persist_dma_mask;
12986
12987         if (tg3_version_printed++ == 0)
12988                 printk(KERN_INFO "%s", version);
12989
12990         err = pci_enable_device(pdev);
12991         if (err) {
12992                 printk(KERN_ERR PFX "Cannot enable PCI device, "
12993                        "aborting.\n");
12994                 return err;
12995         }
12996
12997         err = pci_request_regions(pdev, DRV_MODULE_NAME);
12998         if (err) {
12999                 printk(KERN_ERR PFX "Cannot obtain PCI resources, "
13000                        "aborting.\n");
13001                 goto err_out_disable_pdev;
13002         }
13003
13004         pci_set_master(pdev);
13005
13006         /* Find power-management capability. */
13007         pm_cap = pci_find_capability(pdev, PCI_CAP_ID_PM);
13008         if (pm_cap == 0) {
13009                 printk(KERN_ERR PFX "Cannot find PowerManagement capability, "
13010                        "aborting.\n");
13011                 err = -EIO;
13012                 goto err_out_free_res;
13013         }
13014
13015         dev = alloc_etherdev(sizeof(*tp));
13016         if (!dev) {
13017                 printk(KERN_ERR PFX "Etherdev alloc failed, aborting.\n");
13018                 err = -ENOMEM;
13019                 goto err_out_free_res;
13020         }
13021
13022         SET_NETDEV_DEV(dev, &pdev->dev);
13023
13024 #if TG3_VLAN_TAG_USED
13025         dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
13026 #endif
13027
13028         tp = netdev_priv(dev);
13029         tp->pdev = pdev;
13030         tp->dev = dev;
13031         tp->pm_cap = pm_cap;
13032         tp->rx_mode = TG3_DEF_RX_MODE;
13033         tp->tx_mode = TG3_DEF_TX_MODE;
13034
13035         if (tg3_debug > 0)
13036                 tp->msg_enable = tg3_debug;
13037         else
13038                 tp->msg_enable = TG3_DEF_MSG_ENABLE;
13039
13040         /* The word/byte swap controls here control register access byte
13041          * swapping.  DMA data byte swapping is controlled in the GRC_MODE
13042          * setting below.
13043          */
13044         tp->misc_host_ctrl =
13045                 MISC_HOST_CTRL_MASK_PCI_INT |
13046                 MISC_HOST_CTRL_WORD_SWAP |
13047                 MISC_HOST_CTRL_INDIR_ACCESS |
13048                 MISC_HOST_CTRL_PCISTATE_RW;
13049
13050         /* The NONFRM (non-frame) byte/word swap controls take effect
13051          * on descriptor entries, anything which isn't packet data.
13052          *
13053          * The StrongARM chips on the board (one for tx, one for rx)
13054          * are running in big-endian mode.
13055          */
13056         tp->grc_mode = (GRC_MODE_WSWAP_DATA | GRC_MODE_BSWAP_DATA |
13057                         GRC_MODE_WSWAP_NONFRM_DATA);
13058 #ifdef __BIG_ENDIAN
13059         tp->grc_mode |= GRC_MODE_BSWAP_NONFRM_DATA;
13060 #endif
13061         spin_lock_init(&tp->lock);
13062         spin_lock_init(&tp->indirect_lock);
13063         INIT_WORK(&tp->reset_task, tg3_reset_task);
13064
13065         tp->regs = pci_ioremap_bar(pdev, BAR_0);
13066         if (!tp->regs) {
13067                 printk(KERN_ERR PFX "Cannot map device registers, "
13068                        "aborting.\n");
13069                 err = -ENOMEM;
13070                 goto err_out_free_dev;
13071         }
13072
13073         tg3_init_link_config(tp);
13074
13075         tp->rx_pending = TG3_DEF_RX_RING_PENDING;
13076         tp->rx_jumbo_pending = TG3_DEF_RX_JUMBO_RING_PENDING;
13077         tp->tx_pending = TG3_DEF_TX_RING_PENDING;
13078
13079         netif_napi_add(dev, &tp->napi, tg3_poll, 64);
13080         dev->ethtool_ops = &tg3_ethtool_ops;
13081         dev->watchdog_timeo = TG3_TX_TIMEOUT;
13082         dev->irq = pdev->irq;
13083
13084         err = tg3_get_invariants(tp);
13085         if (err) {
13086                 printk(KERN_ERR PFX "Problem fetching invariants of chip, "
13087                        "aborting.\n");
13088                 goto err_out_iounmap;
13089         }
13090
13091         if ((tp->tg3_flags3 & TG3_FLG3_5755_PLUS) ||
13092             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
13093                 dev->netdev_ops = &tg3_netdev_ops;
13094         else
13095                 dev->netdev_ops = &tg3_netdev_ops_dma_bug;
13096
13097
13098         /* The EPB bridge inside 5714, 5715, and 5780 and any
13099          * device behind the EPB cannot support DMA addresses > 40-bit.
13100          * On 64-bit systems with IOMMU, use 40-bit dma_mask.
13101          * On 64-bit systems without IOMMU, use 64-bit dma_mask and
13102          * do DMA address check in tg3_start_xmit().
13103          */
13104         if (tp->tg3_flags2 & TG3_FLG2_IS_5788)
13105                 persist_dma_mask = dma_mask = DMA_32BIT_MASK;
13106         else if (tp->tg3_flags & TG3_FLAG_40BIT_DMA_BUG) {
13107                 persist_dma_mask = dma_mask = DMA_40BIT_MASK;
13108 #ifdef CONFIG_HIGHMEM
13109                 dma_mask = DMA_64BIT_MASK;
13110 #endif
13111         } else
13112                 persist_dma_mask = dma_mask = DMA_64BIT_MASK;
13113
13114         /* Configure DMA attributes. */
13115         if (dma_mask > DMA_32BIT_MASK) {
13116                 err = pci_set_dma_mask(pdev, dma_mask);
13117                 if (!err) {
13118                         dev->features |= NETIF_F_HIGHDMA;
13119                         err = pci_set_consistent_dma_mask(pdev,
13120                                                           persist_dma_mask);
13121                         if (err < 0) {
13122                                 printk(KERN_ERR PFX "Unable to obtain 64 bit "
13123                                        "DMA for consistent allocations\n");
13124                                 goto err_out_iounmap;
13125                         }
13126                 }
13127         }
13128         if (err || dma_mask == DMA_32BIT_MASK) {
13129                 err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
13130                 if (err) {
13131                         printk(KERN_ERR PFX "No usable DMA configuration, "
13132                                "aborting.\n");
13133                         goto err_out_iounmap;
13134                 }
13135         }
13136
13137         tg3_init_bufmgr_config(tp);
13138
13139         if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0)
13140                 tp->fw_needed = FIRMWARE_TG3;
13141
13142         if (tp->tg3_flags2 & TG3_FLG2_HW_TSO) {
13143                 tp->tg3_flags2 |= TG3_FLG2_TSO_CAPABLE;
13144         }
13145         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
13146             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701 ||
13147             tp->pci_chip_rev_id == CHIPREV_ID_5705_A0 ||
13148             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906 ||
13149             (tp->tg3_flags & TG3_FLAG_ENABLE_ASF) != 0) {
13150                 tp->tg3_flags2 &= ~TG3_FLG2_TSO_CAPABLE;
13151         } else {
13152                 tp->tg3_flags2 |= TG3_FLG2_TSO_CAPABLE | TG3_FLG2_TSO_BUG;
13153                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705)
13154                         tp->fw_needed = FIRMWARE_TG3TSO5;
13155                 else
13156                         tp->fw_needed = FIRMWARE_TG3TSO;
13157         }
13158
13159         /* TSO is on by default on chips that support hardware TSO.
13160          * Firmware TSO on older chips gives lower performance, so it
13161          * is off by default, but can be enabled using ethtool.
13162          */
13163         if (tp->tg3_flags2 & TG3_FLG2_HW_TSO) {
13164                 if (dev->features & NETIF_F_IP_CSUM)
13165                         dev->features |= NETIF_F_TSO;
13166                 if ((dev->features & NETIF_F_IPV6_CSUM) &&
13167                     (tp->tg3_flags2 & TG3_FLG2_HW_TSO_2))
13168                         dev->features |= NETIF_F_TSO6;
13169                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
13170                     (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 &&
13171                      GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5784_AX) ||
13172                         GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
13173                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
13174                         dev->features |= NETIF_F_TSO_ECN;
13175         }
13176
13177
13178         if (tp->pci_chip_rev_id == CHIPREV_ID_5705_A1 &&
13179             !(tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE) &&
13180             !(tr32(TG3PCI_PCISTATE) & PCISTATE_BUS_SPEED_HIGH)) {
13181                 tp->tg3_flags2 |= TG3_FLG2_MAX_RXPEND_64;
13182                 tp->rx_pending = 63;
13183         }
13184
13185         err = tg3_get_device_address(tp);
13186         if (err) {
13187                 printk(KERN_ERR PFX "Could not obtain valid ethernet address, "
13188                        "aborting.\n");
13189                 goto err_out_fw;
13190         }
13191
13192         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) {
13193                 tp->aperegs = pci_ioremap_bar(pdev, BAR_2);
13194                 if (!tp->aperegs) {
13195                         printk(KERN_ERR PFX "Cannot map APE registers, "
13196                                "aborting.\n");
13197                         err = -ENOMEM;
13198                         goto err_out_fw;
13199                 }
13200
13201                 tg3_ape_lock_init(tp);
13202         }
13203
13204         /*
13205          * Reset chip in case UNDI or EFI driver did not shutdown
13206          * DMA self test will enable WDMAC and we'll see (spurious)
13207          * pending DMA on the PCI bus at that point.
13208          */
13209         if ((tr32(HOSTCC_MODE) & HOSTCC_MODE_ENABLE) ||
13210             (tr32(WDMAC_MODE) & WDMAC_MODE_ENABLE)) {
13211                 tw32(MEMARB_MODE, MEMARB_MODE_ENABLE);
13212                 tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
13213         }
13214
13215         err = tg3_test_dma(tp);
13216         if (err) {
13217                 printk(KERN_ERR PFX "DMA engine test failed, aborting.\n");
13218                 goto err_out_apeunmap;
13219         }
13220
13221         /* flow control autonegotiation is default behavior */
13222         tp->tg3_flags |= TG3_FLAG_PAUSE_AUTONEG;
13223         tp->link_config.flowctrl = FLOW_CTRL_TX | FLOW_CTRL_RX;
13224
13225         tg3_init_coal(tp);
13226
13227         pci_set_drvdata(pdev, dev);
13228
13229         err = register_netdev(dev);
13230         if (err) {
13231                 printk(KERN_ERR PFX "Cannot register net device, "
13232                        "aborting.\n");
13233                 goto err_out_apeunmap;
13234         }
13235
13236         printk(KERN_INFO "%s: Tigon3 [partno(%s) rev %04x] (%s) MAC address %pM\n",
13237                dev->name,
13238                tp->board_part_number,
13239                tp->pci_chip_rev_id,
13240                tg3_bus_string(tp, str),
13241                dev->dev_addr);
13242
13243         if (tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED)
13244                 printk(KERN_INFO
13245                        "%s: attached PHY driver [%s] (mii_bus:phy_addr=%s)\n",
13246                        tp->dev->name,
13247                        tp->mdio_bus->phy_map[PHY_ADDR]->drv->name,
13248                        dev_name(&tp->mdio_bus->phy_map[PHY_ADDR]->dev));
13249         else
13250                 printk(KERN_INFO
13251                        "%s: attached PHY is %s (%s Ethernet) (WireSpeed[%d])\n",
13252                        tp->dev->name, tg3_phy_string(tp),
13253                        ((tp->tg3_flags & TG3_FLAG_10_100_ONLY) ? "10/100Base-TX" :
13254                         ((tp->tg3_flags2 & TG3_FLG2_ANY_SERDES) ? "1000Base-SX" :
13255                          "10/100/1000Base-T")),
13256                        (tp->tg3_flags2 & TG3_FLG2_NO_ETH_WIRE_SPEED) == 0);
13257
13258         printk(KERN_INFO "%s: RXcsums[%d] LinkChgREG[%d] MIirq[%d] ASF[%d] TSOcap[%d]\n",
13259                dev->name,
13260                (tp->tg3_flags & TG3_FLAG_RX_CHECKSUMS) != 0,
13261                (tp->tg3_flags & TG3_FLAG_USE_LINKCHG_REG) != 0,
13262                (tp->tg3_flags & TG3_FLAG_USE_MI_INTERRUPT) != 0,
13263                (tp->tg3_flags & TG3_FLAG_ENABLE_ASF) != 0,
13264                (tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE) != 0);
13265         printk(KERN_INFO "%s: dma_rwctrl[%08x] dma_mask[%d-bit]\n",
13266                dev->name, tp->dma_rwctrl,
13267                (pdev->dma_mask == DMA_32BIT_MASK) ? 32 :
13268                 (((u64) pdev->dma_mask == DMA_40BIT_MASK) ? 40 : 64));
13269
13270         return 0;
13271
13272 err_out_apeunmap:
13273         if (tp->aperegs) {
13274                 iounmap(tp->aperegs);
13275                 tp->aperegs = NULL;
13276         }
13277
13278 err_out_fw:
13279         if (tp->fw)
13280                 release_firmware(tp->fw);
13281
13282 err_out_iounmap:
13283         if (tp->regs) {
13284                 iounmap(tp->regs);
13285                 tp->regs = NULL;
13286         }
13287
13288 err_out_free_dev:
13289         free_netdev(dev);
13290
13291 err_out_free_res:
13292         pci_release_regions(pdev);
13293
13294 err_out_disable_pdev:
13295         pci_disable_device(pdev);
13296         pci_set_drvdata(pdev, NULL);
13297         return err;
13298 }
13299
13300 static void __devexit tg3_remove_one(struct pci_dev *pdev)
13301 {
13302         struct net_device *dev = pci_get_drvdata(pdev);
13303
13304         if (dev) {
13305                 struct tg3 *tp = netdev_priv(dev);
13306
13307                 if (tp->fw)
13308                         release_firmware(tp->fw);
13309
13310                 flush_scheduled_work();
13311
13312                 if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
13313                         tg3_phy_fini(tp);
13314                         tg3_mdio_fini(tp);
13315                 }
13316
13317                 unregister_netdev(dev);
13318                 if (tp->aperegs) {
13319                         iounmap(tp->aperegs);
13320                         tp->aperegs = NULL;
13321                 }
13322                 if (tp->regs) {
13323                         iounmap(tp->regs);
13324                         tp->regs = NULL;
13325                 }
13326                 free_netdev(dev);
13327                 pci_release_regions(pdev);
13328                 pci_disable_device(pdev);
13329                 pci_set_drvdata(pdev, NULL);
13330         }
13331 }
13332
13333 static int tg3_suspend(struct pci_dev *pdev, pm_message_t state)
13334 {
13335         struct net_device *dev = pci_get_drvdata(pdev);
13336         struct tg3 *tp = netdev_priv(dev);
13337         pci_power_t target_state;
13338         int err;
13339
13340         /* PCI register 4 needs to be saved whether netif_running() or not.
13341          * MSI address and data need to be saved if using MSI and
13342          * netif_running().
13343          */
13344         pci_save_state(pdev);
13345
13346         if (!netif_running(dev))
13347                 return 0;
13348
13349         flush_scheduled_work();
13350         tg3_phy_stop(tp);
13351         tg3_netif_stop(tp);
13352
13353         del_timer_sync(&tp->timer);
13354
13355         tg3_full_lock(tp, 1);
13356         tg3_disable_ints(tp);
13357         tg3_full_unlock(tp);
13358
13359         netif_device_detach(dev);
13360
13361         tg3_full_lock(tp, 0);
13362         tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
13363         tp->tg3_flags &= ~TG3_FLAG_INIT_COMPLETE;
13364         tg3_full_unlock(tp);
13365
13366         target_state = pdev->pm_cap ? pci_target_state(pdev) : PCI_D3hot;
13367
13368         err = tg3_set_power_state(tp, target_state);
13369         if (err) {
13370                 int err2;
13371
13372                 tg3_full_lock(tp, 0);
13373
13374                 tp->tg3_flags |= TG3_FLAG_INIT_COMPLETE;
13375                 err2 = tg3_restart_hw(tp, 1);
13376                 if (err2)
13377                         goto out;
13378
13379                 tp->timer.expires = jiffies + tp->timer_offset;
13380                 add_timer(&tp->timer);
13381
13382                 netif_device_attach(dev);
13383                 tg3_netif_start(tp);
13384
13385 out:
13386                 tg3_full_unlock(tp);
13387
13388                 if (!err2)
13389                         tg3_phy_start(tp);
13390         }
13391
13392         return err;
13393 }
13394
13395 static int tg3_resume(struct pci_dev *pdev)
13396 {
13397         struct net_device *dev = pci_get_drvdata(pdev);
13398         struct tg3 *tp = netdev_priv(dev);
13399         int err;
13400
13401         pci_restore_state(tp->pdev);
13402
13403         if (!netif_running(dev))
13404                 return 0;
13405
13406         err = tg3_set_power_state(tp, PCI_D0);
13407         if (err)
13408                 return err;
13409
13410         netif_device_attach(dev);
13411
13412         tg3_full_lock(tp, 0);
13413
13414         tp->tg3_flags |= TG3_FLAG_INIT_COMPLETE;
13415         err = tg3_restart_hw(tp, 1);
13416         if (err)
13417                 goto out;
13418
13419         tp->timer.expires = jiffies + tp->timer_offset;
13420         add_timer(&tp->timer);
13421
13422         tg3_netif_start(tp);
13423
13424 out:
13425         tg3_full_unlock(tp);
13426
13427         if (!err)
13428                 tg3_phy_start(tp);
13429
13430         return err;
13431 }
13432
13433 static struct pci_driver tg3_driver = {
13434         .name           = DRV_MODULE_NAME,
13435         .id_table       = tg3_pci_tbl,
13436         .probe          = tg3_init_one,
13437         .remove         = __devexit_p(tg3_remove_one),
13438         .suspend        = tg3_suspend,
13439         .resume         = tg3_resume
13440 };
13441
13442 static int __init tg3_init(void)
13443 {
13444         return pci_register_driver(&tg3_driver);
13445 }
13446
13447 static void __exit tg3_cleanup(void)
13448 {
13449         pci_unregister_driver(&tg3_driver);
13450 }
13451
13452 module_init(tg3_init);
13453 module_exit(tg3_cleanup);