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

   1 /*
   2  * forcedeth: Ethernet driver for NVIDIA nForce media access controllers.
   3  *
   4  * Note: This driver is a cleanroom reimplementation based on reverse
   5  *      engineered documentation written by Carl-Daniel Hailfinger
   6  *      and Andrew de Quincey.
   7  *
   8  * NVIDIA, nForce and other NVIDIA marks are trademarks or registered
   9  * trademarks of NVIDIA Corporation in the United States and other
  10  * countries.
  11  *
  12  * Copyright (C) 2003,4,5 Manfred Spraul
  13  * Copyright (C) 2004 Andrew de Quincey (wol support)
  14  * Copyright (C) 2004 Carl-Daniel Hailfinger (invalid MAC handling, insane
  15  *              IRQ rate fixes, bigendian fixes, cleanups, verification)
  16  * Copyright (c) 2004,2005,2006,2007,2008,2009 NVIDIA Corporation
  17  *
  18  * This program is free software; you can redistribute it and/or modify
  19  * it under the terms of the GNU General Public License as published by
  20  * the Free Software Foundation; either version 2 of the License, or
  21  * (at your option) any later version.
  22  *
  23  * This program is distributed in the hope that it will be useful,
  24  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  25  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  26  * GNU General Public License for more details.
  27  *
  28  * You should have received a copy of the GNU General Public License
  29  * along with this program; if not, write to the Free Software
  30  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  31  *
  32  * Known bugs:
  33  * We suspect that on some hardware no TX done interrupts are generated.
  34  * This means recovery from netif_stop_queue only happens if the hw timer
  35  * interrupt fires (100 times/second, configurable with NVREG_POLL_DEFAULT)
  36  * and the timer is active in the IRQMask, or if a rx packet arrives by chance.
  37  * If your hardware reliably generates tx done interrupts, then you can remove
  38  * DEV_NEED_TIMERIRQ from the driver_data flags.
  39  * DEV_NEED_TIMERIRQ will not harm you on sane hardware, only generating a few
  40  * superfluous timer interrupts from the nic.
  41  */
  42 #define FORCEDETH_VERSION               "0.62"
  43 #define DRV_NAME                        "forcedeth"
  44
  45 #include <linux/module.h>
  46 #include <linux/types.h>
  47 #include <linux/pci.h>
  48 #include <linux/interrupt.h>
  49 #include <linux/netdevice.h>
  50 #include <linux/etherdevice.h>
  51 #include <linux/delay.h>
  52 #include <linux/spinlock.h>
  53 #include <linux/ethtool.h>
  54 #include <linux/timer.h>
  55 #include <linux/skbuff.h>
  56 #include <linux/mii.h>
  57 #include <linux/random.h>
  58 #include <linux/init.h>
  59 #include <linux/if_vlan.h>
  60 #include <linux/dma-mapping.h>
  61
  62 #include <asm/irq.h>
  63 #include <asm/io.h>
  64 #include <asm/uaccess.h>
  65 #include <asm/system.h>
  66
  67 #if 0
  68 #define dprintk                 printk
  69 #else
  70 #define dprintk(x...)           do { } while (0)
  71 #endif
  72
  73 #define TX_WORK_PER_LOOP  64
  74 #define RX_WORK_PER_LOOP  64
  75
  76 /*
  77  * Hardware access:
  78  */
  79
  80 #define DEV_NEED_TIMERIRQ          0x000001  /* set the timer irq flag in the irq mask */
  81 #define DEV_NEED_LINKTIMER         0x000002  /* poll link settings. Relies on the timer irq */
  82 #define DEV_HAS_LARGEDESC          0x000004  /* device supports jumbo frames and needs packet format 2 */
  83 #define DEV_HAS_HIGH_DMA           0x000008  /* device supports 64bit dma */
  84 #define DEV_HAS_CHECKSUM           0x000010  /* device supports tx and rx checksum offloads */
  85 #define DEV_HAS_VLAN               0x000020  /* device supports vlan tagging and striping */
  86 #define DEV_HAS_MSI                0x000040  /* device supports MSI */
  87 #define DEV_HAS_MSI_X              0x000080  /* device supports MSI-X */
  88 #define DEV_HAS_POWER_CNTRL        0x000100  /* device supports power savings */
  89 #define DEV_HAS_STATISTICS_V1      0x000200  /* device supports hw statistics version 1 */
  90 #define DEV_HAS_STATISTICS_V2      0x000400  /* device supports hw statistics version 2 */
  91 #define DEV_HAS_STATISTICS_V3      0x000800  /* device supports hw statistics version 3 */
  92 #define DEV_HAS_TEST_EXTENDED      0x001000  /* device supports extended diagnostic test */
  93 #define DEV_HAS_MGMT_UNIT          0x002000  /* device supports management unit */
  94 #define DEV_HAS_CORRECT_MACADDR    0x004000  /* device supports correct mac address order */
  95 #define DEV_HAS_COLLISION_FIX      0x008000  /* device supports tx collision fix */
  96 #define DEV_HAS_PAUSEFRAME_TX_V1   0x010000  /* device supports tx pause frames version 1 */
  97 #define DEV_HAS_PAUSEFRAME_TX_V2   0x020000  /* device supports tx pause frames version 2 */
  98 #define DEV_HAS_PAUSEFRAME_TX_V3   0x040000  /* device supports tx pause frames version 3 */
  99 #define DEV_NEED_TX_LIMIT          0x080000  /* device needs to limit tx */
 100 #define DEV_HAS_GEAR_MODE          0x100000  /* device supports gear mode */
 101
 102 enum {
 103         NvRegIrqStatus = 0x000,
 104 #define NVREG_IRQSTAT_MIIEVENT  0x040
 105 #define NVREG_IRQSTAT_MASK              0x81ff
 106         NvRegIrqMask = 0x004,
 107 #define NVREG_IRQ_RX_ERROR              0x0001
 108 #define NVREG_IRQ_RX                    0x0002
 109 #define NVREG_IRQ_RX_NOBUF              0x0004
 110 #define NVREG_IRQ_TX_ERR                0x0008
 111 #define NVREG_IRQ_TX_OK                 0x0010
 112 #define NVREG_IRQ_TIMER                 0x0020
 113 #define NVREG_IRQ_LINK                  0x0040
 114 #define NVREG_IRQ_RX_FORCED             0x0080
 115 #define NVREG_IRQ_TX_FORCED             0x0100
 116 #define NVREG_IRQ_RECOVER_ERROR         0x8000
 117 #define NVREG_IRQMASK_THROUGHPUT        0x00df
 118 #define NVREG_IRQMASK_CPU               0x0060
 119 #define NVREG_IRQ_TX_ALL                (NVREG_IRQ_TX_ERR|NVREG_IRQ_TX_OK|NVREG_IRQ_TX_FORCED)
 120 #define NVREG_IRQ_RX_ALL                (NVREG_IRQ_RX_ERROR|NVREG_IRQ_RX|NVREG_IRQ_RX_NOBUF|NVREG_IRQ_RX_FORCED)
 121 #define NVREG_IRQ_OTHER                 (NVREG_IRQ_TIMER|NVREG_IRQ_LINK|NVREG_IRQ_RECOVER_ERROR)
 122
 123 #define NVREG_IRQ_UNKNOWN       (~(NVREG_IRQ_RX_ERROR|NVREG_IRQ_RX|NVREG_IRQ_RX_NOBUF|NVREG_IRQ_TX_ERR| \
 124                                         NVREG_IRQ_TX_OK|NVREG_IRQ_TIMER|NVREG_IRQ_LINK|NVREG_IRQ_RX_FORCED| \
 125                                         NVREG_IRQ_TX_FORCED|NVREG_IRQ_RECOVER_ERROR))
 126
 127         NvRegUnknownSetupReg6 = 0x008,
 128 #define NVREG_UNKSETUP6_VAL             3
 129
 130 /*
 131  * NVREG_POLL_DEFAULT is the interval length of the timer source on the nic
 132  * NVREG_POLL_DEFAULT=97 would result in an interval length of 1 ms
 133  */
 134         NvRegPollingInterval = 0x00c,
 135 #define NVREG_POLL_DEFAULT_THROUGHPUT   970 /* backup tx cleanup if loop max reached */
 136 #define NVREG_POLL_DEFAULT_CPU  13
 137         NvRegMSIMap0 = 0x020,
 138         NvRegMSIMap1 = 0x024,
 139         NvRegMSIIrqMask = 0x030,
 140 #define NVREG_MSI_VECTOR_0_ENABLED 0x01
 141         NvRegMisc1 = 0x080,
 142 #define NVREG_MISC1_PAUSE_TX    0x01
 143 #define NVREG_MISC1_HD          0x02
 144 #define NVREG_MISC1_FORCE       0x3b0f3c
 145
 146         NvRegMacReset = 0x34,
 147 #define NVREG_MAC_RESET_ASSERT  0x0F3
 148         NvRegTransmitterControl = 0x084,
 149 #define NVREG_XMITCTL_START     0x01
 150 #define NVREG_XMITCTL_MGMT_ST   0x40000000
 151 #define NVREG_XMITCTL_SYNC_MASK         0x000f0000
 152 #define NVREG_XMITCTL_SYNC_NOT_READY    0x0
 153 #define NVREG_XMITCTL_SYNC_PHY_INIT     0x00040000
 154 #define NVREG_XMITCTL_MGMT_SEMA_MASK    0x00000f00
 155 #define NVREG_XMITCTL_MGMT_SEMA_FREE    0x0
 156 #define NVREG_XMITCTL_HOST_SEMA_MASK    0x0000f000
 157 #define NVREG_XMITCTL_HOST_SEMA_ACQ     0x0000f000
 158 #define NVREG_XMITCTL_HOST_LOADED       0x00004000
 159 #define NVREG_XMITCTL_TX_PATH_EN        0x01000000
 160         NvRegTransmitterStatus = 0x088,
 161 #define NVREG_XMITSTAT_BUSY     0x01
 162
 163         NvRegPacketFilterFlags = 0x8c,
 164 #define NVREG_PFF_PAUSE_RX      0x08
 165 #define NVREG_PFF_ALWAYS        0x7F0000
 166 #define NVREG_PFF_PROMISC       0x80
 167 #define NVREG_PFF_MYADDR        0x20
 168 #define NVREG_PFF_LOOPBACK      0x10
 169
 170         NvRegOffloadConfig = 0x90,
 171 #define NVREG_OFFLOAD_HOMEPHY   0x601
 172 #define NVREG_OFFLOAD_NORMAL    RX_NIC_BUFSIZE
 173         NvRegReceiverControl = 0x094,
 174 #define NVREG_RCVCTL_START      0x01
 175 #define NVREG_RCVCTL_RX_PATH_EN 0x01000000
 176         NvRegReceiverStatus = 0x98,
 177 #define NVREG_RCVSTAT_BUSY      0x01
 178
 179         NvRegSlotTime = 0x9c,
 180 #define NVREG_SLOTTIME_LEGBF_ENABLED    0x80000000
 181 #define NVREG_SLOTTIME_10_100_FULL      0x00007f00
 182 #define NVREG_SLOTTIME_1000_FULL        0x0003ff00
 183 #define NVREG_SLOTTIME_HALF             0x0000ff00
 184 #define NVREG_SLOTTIME_DEFAULT          0x00007f00
 185 #define NVREG_SLOTTIME_MASK             0x000000ff
 186
 187         NvRegTxDeferral = 0xA0,
 188 #define NVREG_TX_DEFERRAL_DEFAULT               0x15050f
 189 #define NVREG_TX_DEFERRAL_RGMII_10_100          0x16070f
 190 #define NVREG_TX_DEFERRAL_RGMII_1000            0x14050f
 191 #define NVREG_TX_DEFERRAL_RGMII_STRETCH_10      0x16190f
 192 #define NVREG_TX_DEFERRAL_RGMII_STRETCH_100     0x16300f
 193 #define NVREG_TX_DEFERRAL_MII_STRETCH           0x152000
 194         NvRegRxDeferral = 0xA4,
 195 #define NVREG_RX_DEFERRAL_DEFAULT       0x16
 196         NvRegMacAddrA = 0xA8,
 197         NvRegMacAddrB = 0xAC,
 198         NvRegMulticastAddrA = 0xB0,
 199 #define NVREG_MCASTADDRA_FORCE  0x01
 200         NvRegMulticastAddrB = 0xB4,
 201         NvRegMulticastMaskA = 0xB8,
 202 #define NVREG_MCASTMASKA_NONE           0xffffffff
 203         NvRegMulticastMaskB = 0xBC,
 204 #define NVREG_MCASTMASKB_NONE           0xffff
 205
 206         NvRegPhyInterface = 0xC0,
 207 #define PHY_RGMII               0x10000000
 208         NvRegBackOffControl = 0xC4,
 209 #define NVREG_BKOFFCTRL_DEFAULT                 0x70000000
 210 #define NVREG_BKOFFCTRL_SEED_MASK               0x000003ff
 211 #define NVREG_BKOFFCTRL_SELECT                  24
 212 #define NVREG_BKOFFCTRL_GEAR                    12
 213
 214         NvRegTxRingPhysAddr = 0x100,
 215         NvRegRxRingPhysAddr = 0x104,
 216         NvRegRingSizes = 0x108,
 217 #define NVREG_RINGSZ_TXSHIFT 0
 218 #define NVREG_RINGSZ_RXSHIFT 16
 219         NvRegTransmitPoll = 0x10c,
 220 #define NVREG_TRANSMITPOLL_MAC_ADDR_REV 0x00008000
 221         NvRegLinkSpeed = 0x110,
 222 #define NVREG_LINKSPEED_FORCE 0x10000
 223 #define NVREG_LINKSPEED_10      1000
 224 #define NVREG_LINKSPEED_100     100
 225 #define NVREG_LINKSPEED_1000    50
 226 #define NVREG_LINKSPEED_MASK    (0xFFF)
 227         NvRegUnknownSetupReg5 = 0x130,
 228 #define NVREG_UNKSETUP5_BIT31   (1<<31)
 229         NvRegTxWatermark = 0x13c,
 230 #define NVREG_TX_WM_DESC1_DEFAULT       0x0200010
 231 #define NVREG_TX_WM_DESC2_3_DEFAULT     0x1e08000
 232 #define NVREG_TX_WM_DESC2_3_1000        0xfe08000
 233         NvRegTxRxControl = 0x144,
 234 #define NVREG_TXRXCTL_KICK      0x0001
 235 #define NVREG_TXRXCTL_BIT1      0x0002
 236 #define NVREG_TXRXCTL_BIT2      0x0004
 237 #define NVREG_TXRXCTL_IDLE      0x0008
 238 #define NVREG_TXRXCTL_RESET     0x0010
 239 #define NVREG_TXRXCTL_RXCHECK   0x0400
 240 #define NVREG_TXRXCTL_DESC_1    0
 241 #define NVREG_TXRXCTL_DESC_2    0x002100
 242 #define NVREG_TXRXCTL_DESC_3    0xc02200
 243 #define NVREG_TXRXCTL_VLANSTRIP 0x00040
 244 #define NVREG_TXRXCTL_VLANINS   0x00080
 245         NvRegTxRingPhysAddrHigh = 0x148,
 246         NvRegRxRingPhysAddrHigh = 0x14C,
 247         NvRegTxPauseFrame = 0x170,
 248 #define NVREG_TX_PAUSEFRAME_DISABLE     0x0fff0080
 249 #define NVREG_TX_PAUSEFRAME_ENABLE_V1   0x01800010
 250 #define NVREG_TX_PAUSEFRAME_ENABLE_V2   0x056003f0
 251 #define NVREG_TX_PAUSEFRAME_ENABLE_V3   0x09f00880
 252         NvRegTxPauseFrameLimit = 0x174,
 253 #define NVREG_TX_PAUSEFRAMELIMIT_ENABLE 0x00010000
 254         NvRegMIIStatus = 0x180,
 255 #define NVREG_MIISTAT_ERROR             0x0001
 256 #define NVREG_MIISTAT_LINKCHANGE        0x0008
 257 #define NVREG_MIISTAT_MASK_RW           0x0007
 258 #define NVREG_MIISTAT_MASK_ALL          0x000f
 259         NvRegMIIMask = 0x184,
 260 #define NVREG_MII_LINKCHANGE            0x0008
 261
 262         NvRegAdapterControl = 0x188,
 263 #define NVREG_ADAPTCTL_START    0x02
 264 #define NVREG_ADAPTCTL_LINKUP   0x04
 265 #define NVREG_ADAPTCTL_PHYVALID 0x40000
 266 #define NVREG_ADAPTCTL_RUNNING  0x100000
 267 #define NVREG_ADAPTCTL_PHYSHIFT 24
 268         NvRegMIISpeed = 0x18c,
 269 #define NVREG_MIISPEED_BIT8     (1<<8)
 270 #define NVREG_MIIDELAY  5
 271         NvRegMIIControl = 0x190,
 272 #define NVREG_MIICTL_INUSE      0x08000
 273 #define NVREG_MIICTL_WRITE      0x00400
 274 #define NVREG_MIICTL_ADDRSHIFT  5
 275         NvRegMIIData = 0x194,
 276         NvRegTxUnicast = 0x1a0,
 277         NvRegTxMulticast = 0x1a4,
 278         NvRegTxBroadcast = 0x1a8,
 279         NvRegWakeUpFlags = 0x200,
 280 #define NVREG_WAKEUPFLAGS_VAL           0x7770
 281 #define NVREG_WAKEUPFLAGS_BUSYSHIFT     24
 282 #define NVREG_WAKEUPFLAGS_ENABLESHIFT   16
 283 #define NVREG_WAKEUPFLAGS_D3SHIFT       12
 284 #define NVREG_WAKEUPFLAGS_D2SHIFT       8
 285 #define NVREG_WAKEUPFLAGS_D1SHIFT       4
 286 #define NVREG_WAKEUPFLAGS_D0SHIFT       0
 287 #define NVREG_WAKEUPFLAGS_ACCEPT_MAGPAT         0x01
 288 #define NVREG_WAKEUPFLAGS_ACCEPT_WAKEUPPAT      0x02
 289 #define NVREG_WAKEUPFLAGS_ACCEPT_LINKCHANGE     0x04
 290 #define NVREG_WAKEUPFLAGS_ENABLE        0x1111
 291
 292         NvRegPatternCRC = 0x204,
 293         NvRegPatternMask = 0x208,
 294         NvRegPowerCap = 0x268,
 295 #define NVREG_POWERCAP_D3SUPP   (1<<30)
 296 #define NVREG_POWERCAP_D2SUPP   (1<<26)
 297 #define NVREG_POWERCAP_D1SUPP   (1<<25)
 298         NvRegPowerState = 0x26c,
 299 #define NVREG_POWERSTATE_POWEREDUP      0x8000
 300 #define NVREG_POWERSTATE_VALID          0x0100
 301 #define NVREG_POWERSTATE_MASK           0x0003
 302 #define NVREG_POWERSTATE_D0             0x0000
 303 #define NVREG_POWERSTATE_D1             0x0001
 304 #define NVREG_POWERSTATE_D2             0x0002
 305 #define NVREG_POWERSTATE_D3             0x0003
 306         NvRegTxCnt = 0x280,
 307         NvRegTxZeroReXmt = 0x284,
 308         NvRegTxOneReXmt = 0x288,
 309         NvRegTxManyReXmt = 0x28c,
 310         NvRegTxLateCol = 0x290,
 311         NvRegTxUnderflow = 0x294,
 312         NvRegTxLossCarrier = 0x298,
 313         NvRegTxExcessDef = 0x29c,
 314         NvRegTxRetryErr = 0x2a0,
 315         NvRegRxFrameErr = 0x2a4,
 316         NvRegRxExtraByte = 0x2a8,
 317         NvRegRxLateCol = 0x2ac,
 318         NvRegRxRunt = 0x2b0,
 319         NvRegRxFrameTooLong = 0x2b4,
 320         NvRegRxOverflow = 0x2b8,
 321         NvRegRxFCSErr = 0x2bc,
 322         NvRegRxFrameAlignErr = 0x2c0,
 323         NvRegRxLenErr = 0x2c4,
 324         NvRegRxUnicast = 0x2c8,
 325         NvRegRxMulticast = 0x2cc,
 326         NvRegRxBroadcast = 0x2d0,
 327         NvRegTxDef = 0x2d4,
 328         NvRegTxFrame = 0x2d8,
 329         NvRegRxCnt = 0x2dc,
 330         NvRegTxPause = 0x2e0,
 331         NvRegRxPause = 0x2e4,
 332         NvRegRxDropFrame = 0x2e8,
 333         NvRegVlanControl = 0x300,
 334 #define NVREG_VLANCONTROL_ENABLE        0x2000
 335         NvRegMSIXMap0 = 0x3e0,
 336         NvRegMSIXMap1 = 0x3e4,
 337         NvRegMSIXIrqStatus = 0x3f0,
 338
 339         NvRegPowerState2 = 0x600,
 340 #define NVREG_POWERSTATE2_POWERUP_MASK          0x0F15
 341 #define NVREG_POWERSTATE2_POWERUP_REV_A3        0x0001
 342 #define NVREG_POWERSTATE2_PHY_RESET             0x0004
 343 };
 344
 345 /* Big endian: should work, but is untested */
 346 struct ring_desc {
 347         __le32 buf;
 348         __le32 flaglen;
 349 };
 350
 351 struct ring_desc_ex {
 352         __le32 bufhigh;
 353         __le32 buflow;
 354         __le32 txvlan;
 355         __le32 flaglen;
 356 };
 357
 358 union ring_type {
 359         struct ring_desc* orig;
 360         struct ring_desc_ex* ex;
 361 };
 362
 363 #define FLAG_MASK_V1 0xffff0000
 364 #define FLAG_MASK_V2 0xffffc000
 365 #define LEN_MASK_V1 (0xffffffff ^ FLAG_MASK_V1)
 366 #define LEN_MASK_V2 (0xffffffff ^ FLAG_MASK_V2)
 367
 368 #define NV_TX_LASTPACKET        (1<<16)
 369 #define NV_TX_RETRYERROR        (1<<19)
 370 #define NV_TX_RETRYCOUNT_MASK   (0xF<<20)
 371 #define NV_TX_FORCED_INTERRUPT  (1<<24)
 372 #define NV_TX_DEFERRED          (1<<26)
 373 #define NV_TX_CARRIERLOST       (1<<27)
 374 #define NV_TX_LATECOLLISION     (1<<28)
 375 #define NV_TX_UNDERFLOW         (1<<29)
 376 #define NV_TX_ERROR             (1<<30)
 377 #define NV_TX_VALID             (1<<31)
 378
 379 #define NV_TX2_LASTPACKET       (1<<29)
 380 #define NV_TX2_RETRYERROR       (1<<18)
 381 #define NV_TX2_RETRYCOUNT_MASK  (0xF<<19)
 382 #define NV_TX2_FORCED_INTERRUPT (1<<30)
 383 #define NV_TX2_DEFERRED         (1<<25)
 384 #define NV_TX2_CARRIERLOST      (1<<26)
 385 #define NV_TX2_LATECOLLISION    (1<<27)
 386 #define NV_TX2_UNDERFLOW        (1<<28)
 387 /* error and valid are the same for both */
 388 #define NV_TX2_ERROR            (1<<30)
 389 #define NV_TX2_VALID            (1<<31)
 390 #define NV_TX2_TSO              (1<<28)
 391 #define NV_TX2_TSO_SHIFT        14
 392 #define NV_TX2_TSO_MAX_SHIFT    14
 393 #define NV_TX2_TSO_MAX_SIZE     (1<<NV_TX2_TSO_MAX_SHIFT)
 394 #define NV_TX2_CHECKSUM_L3      (1<<27)
 395 #define NV_TX2_CHECKSUM_L4      (1<<26)
 396
 397 #define NV_TX3_VLAN_TAG_PRESENT (1<<18)
 398
 399 #define NV_RX_DESCRIPTORVALID   (1<<16)
 400 #define NV_RX_MISSEDFRAME       (1<<17)
 401 #define NV_RX_SUBSTRACT1        (1<<18)
 402 #define NV_RX_ERROR1            (1<<23)
 403 #define NV_RX_ERROR2            (1<<24)
 404 #define NV_RX_ERROR3            (1<<25)
 405 #define NV_RX_ERROR4            (1<<26)
 406 #define NV_RX_CRCERR            (1<<27)
 407 #define NV_RX_OVERFLOW          (1<<28)
 408 #define NV_RX_FRAMINGERR        (1<<29)
 409 #define NV_RX_ERROR             (1<<30)
 410 #define NV_RX_AVAIL             (1<<31)
 411 #define NV_RX_ERROR_MASK        (NV_RX_ERROR1|NV_RX_ERROR2|NV_RX_ERROR3|NV_RX_ERROR4|NV_RX_CRCERR|NV_RX_OVERFLOW|NV_RX_FRAMINGERR)
 412
 413 #define NV_RX2_CHECKSUMMASK     (0x1C000000)
 414 #define NV_RX2_CHECKSUM_IP      (0x10000000)
 415 #define NV_RX2_CHECKSUM_IP_TCP  (0x14000000)
 416 #define NV_RX2_CHECKSUM_IP_UDP  (0x18000000)
 417 #define NV_RX2_DESCRIPTORVALID  (1<<29)
 418 #define NV_RX2_SUBSTRACT1       (1<<25)
 419 #define NV_RX2_ERROR1           (1<<18)
 420 #define NV_RX2_ERROR2           (1<<19)
 421 #define NV_RX2_ERROR3           (1<<20)
 422 #define NV_RX2_ERROR4           (1<<21)
 423 #define NV_RX2_CRCERR           (1<<22)
 424 #define NV_RX2_OVERFLOW         (1<<23)
 425 #define NV_RX2_FRAMINGERR       (1<<24)
 426 /* error and avail are the same for both */
 427 #define NV_RX2_ERROR            (1<<30)
 428 #define NV_RX2_AVAIL            (1<<31)
 429 #define NV_RX2_ERROR_MASK       (NV_RX2_ERROR1|NV_RX2_ERROR2|NV_RX2_ERROR3|NV_RX2_ERROR4|NV_RX2_CRCERR|NV_RX2_OVERFLOW|NV_RX2_FRAMINGERR)
 430
 431 #define NV_RX3_VLAN_TAG_PRESENT (1<<16)
 432 #define NV_RX3_VLAN_TAG_MASK    (0x0000FFFF)
 433
 434 /* Miscelaneous hardware related defines: */
 435 #define NV_PCI_REGSZ_VER1       0x270
 436 #define NV_PCI_REGSZ_VER2       0x2d4
 437 #define NV_PCI_REGSZ_VER3       0x604
 438 #define NV_PCI_REGSZ_MAX        0x604
 439
 440 /* various timeout delays: all in usec */
 441 #define NV_TXRX_RESET_DELAY     4
 442 #define NV_TXSTOP_DELAY1        10
 443 #define NV_TXSTOP_DELAY1MAX     500000
 444 #define NV_TXSTOP_DELAY2        100
 445 #define NV_RXSTOP_DELAY1        10
 446 #define NV_RXSTOP_DELAY1MAX     500000
 447 #define NV_RXSTOP_DELAY2        100
 448 #define NV_SETUP5_DELAY         5
 449 #define NV_SETUP5_DELAYMAX      50000
 450 #define NV_POWERUP_DELAY        5
 451 #define NV_POWERUP_DELAYMAX     5000
 452 #define NV_MIIBUSY_DELAY        50
 453 #define NV_MIIPHY_DELAY 10
 454 #define NV_MIIPHY_DELAYMAX      10000
 455 #define NV_MAC_RESET_DELAY      64
 456
 457 #define NV_WAKEUPPATTERNS       5
 458 #define NV_WAKEUPMASKENTRIES    4
 459
 460 /* General driver defaults */
 461 #define NV_WATCHDOG_TIMEO       (5*HZ)
 462
 463 #define RX_RING_DEFAULT         128
 464 #define TX_RING_DEFAULT         256
 465 #define RX_RING_MIN             128
 466 #define TX_RING_MIN             64
 467 #define RING_MAX_DESC_VER_1     1024
 468 #define RING_MAX_DESC_VER_2_3   16384
 469
 470 /* rx/tx mac addr + type + vlan + align + slack*/
 471 #define NV_RX_HEADERS           (64)
 472 /* even more slack. */
 473 #define NV_RX_ALLOC_PAD         (64)
 474
 475 /* maximum mtu size */
 476 #define NV_PKTLIMIT_1   ETH_DATA_LEN    /* hard limit not known */
 477 #define NV_PKTLIMIT_2   9100    /* Actual limit according to NVidia: 9202 */
 478
 479 #define OOM_REFILL      (1+HZ/20)
 480 #define POLL_WAIT       (1+HZ/100)
 481 #define LINK_TIMEOUT    (3*HZ)
 482 #define STATS_INTERVAL  (10*HZ)
 483
 484 /*
 485  * desc_ver values:
 486  * The nic supports three different descriptor types:
 487  * - DESC_VER_1: Original
 488  * - DESC_VER_2: support for jumbo frames.
 489  * - DESC_VER_3: 64-bit format.
 490  */
 491 #define DESC_VER_1      1
 492 #define DESC_VER_2      2
 493 #define DESC_VER_3      3
 494
 495 /* PHY defines */
 496 #define PHY_OUI_MARVELL         0x5043
 497 #define PHY_OUI_CICADA          0x03f1
 498 #define PHY_OUI_VITESSE         0x01c1
 499 #define PHY_OUI_REALTEK         0x0732
 500 #define PHY_OUI_REALTEK2        0x0020
 501 #define PHYID1_OUI_MASK 0x03ff
 502 #define PHYID1_OUI_SHFT 6
 503 #define PHYID2_OUI_MASK 0xfc00
 504 #define PHYID2_OUI_SHFT 10
 505 #define PHYID2_MODEL_MASK               0x03f0
 506 #define PHY_MODEL_REALTEK_8211          0x0110
 507 #define PHY_REV_MASK                    0x0001
 508 #define PHY_REV_REALTEK_8211B           0x0000
 509 #define PHY_REV_REALTEK_8211C           0x0001
 510 #define PHY_MODEL_REALTEK_8201          0x0200
 511 #define PHY_MODEL_MARVELL_E3016         0x0220
 512 #define PHY_MARVELL_E3016_INITMASK      0x0300
 513 #define PHY_CICADA_INIT1        0x0f000
 514 #define PHY_CICADA_INIT2        0x0e00
 515 #define PHY_CICADA_INIT3        0x01000
 516 #define PHY_CICADA_INIT4        0x0200
 517 #define PHY_CICADA_INIT5        0x0004
 518 #define PHY_CICADA_INIT6        0x02000
 519 #define PHY_VITESSE_INIT_REG1   0x1f
 520 #define PHY_VITESSE_INIT_REG2   0x10
 521 #define PHY_VITESSE_INIT_REG3   0x11
 522 #define PHY_VITESSE_INIT_REG4   0x12
 523 #define PHY_VITESSE_INIT_MSK1   0xc
 524 #define PHY_VITESSE_INIT_MSK2   0x0180
 525 #define PHY_VITESSE_INIT1       0x52b5
 526 #define PHY_VITESSE_INIT2       0xaf8a
 527 #define PHY_VITESSE_INIT3       0x8
 528 #define PHY_VITESSE_INIT4       0x8f8a
 529 #define PHY_VITESSE_INIT5       0xaf86
 530 #define PHY_VITESSE_INIT6       0x8f86
 531 #define PHY_VITESSE_INIT7       0xaf82
 532 #define PHY_VITESSE_INIT8       0x0100
 533 #define PHY_VITESSE_INIT9       0x8f82
 534 #define PHY_VITESSE_INIT10      0x0
 535 #define PHY_REALTEK_INIT_REG1   0x1f
 536 #define PHY_REALTEK_INIT_REG2   0x19
 537 #define PHY_REALTEK_INIT_REG3   0x13
 538 #define PHY_REALTEK_INIT_REG4   0x14
 539 #define PHY_REALTEK_INIT_REG5   0x18
 540 #define PHY_REALTEK_INIT_REG6   0x11
 541 #define PHY_REALTEK_INIT_REG7   0x01
 542 #define PHY_REALTEK_INIT1       0x0000
 543 #define PHY_REALTEK_INIT2       0x8e00
 544 #define PHY_REALTEK_INIT3       0x0001
 545 #define PHY_REALTEK_INIT4       0xad17
 546 #define PHY_REALTEK_INIT5       0xfb54
 547 #define PHY_REALTEK_INIT6       0xf5c7
 548 #define PHY_REALTEK_INIT7       0x1000
 549 #define PHY_REALTEK_INIT8       0x0003
 550 #define PHY_REALTEK_INIT9       0x0008
 551 #define PHY_REALTEK_INIT10      0x0005
 552 #define PHY_REALTEK_INIT11      0x0200
 553 #define PHY_REALTEK_INIT_MSK1   0x0003
 554
 555 #define PHY_GIGABIT     0x0100
 556
 557 #define PHY_TIMEOUT     0x1
 558 #define PHY_ERROR       0x2
 559
 560 #define PHY_100 0x1
 561 #define PHY_1000        0x2
 562 #define PHY_HALF        0x100
 563
 564 #define NV_PAUSEFRAME_RX_CAPABLE 0x0001
 565 #define NV_PAUSEFRAME_TX_CAPABLE 0x0002
 566 #define NV_PAUSEFRAME_RX_ENABLE  0x0004
 567 #define NV_PAUSEFRAME_TX_ENABLE  0x0008
 568 #define NV_PAUSEFRAME_RX_REQ     0x0010
 569 #define NV_PAUSEFRAME_TX_REQ     0x0020
 570 #define NV_PAUSEFRAME_AUTONEG    0x0040
 571
 572 /* MSI/MSI-X defines */
 573 #define NV_MSI_X_MAX_VECTORS  8
 574 #define NV_MSI_X_VECTORS_MASK 0x000f
 575 #define NV_MSI_CAPABLE        0x0010
 576 #define NV_MSI_X_CAPABLE      0x0020
 577 #define NV_MSI_ENABLED        0x0040
 578 #define NV_MSI_X_ENABLED      0x0080
 579
 580 #define NV_MSI_X_VECTOR_ALL   0x0
 581 #define NV_MSI_X_VECTOR_RX    0x0
 582 #define NV_MSI_X_VECTOR_TX    0x1
 583 #define NV_MSI_X_VECTOR_OTHER 0x2
 584
 585 #define NV_RESTART_TX         0x1
 586 #define NV_RESTART_RX         0x2
 587
 588 #define NV_TX_LIMIT_COUNT     16
 589
 590 /* statistics */
 591 struct nv_ethtool_str {
 592         char name[ETH_GSTRING_LEN];
 593 };
 594
 595 static const struct nv_ethtool_str nv_estats_str[] = {
 596         { "tx_bytes" },
 597         { "tx_zero_rexmt" },
 598         { "tx_one_rexmt" },
 599         { "tx_many_rexmt" },
 600         { "tx_late_collision" },
 601         { "tx_fifo_errors" },
 602         { "tx_carrier_errors" },
 603         { "tx_excess_deferral" },
 604         { "tx_retry_error" },
 605         { "rx_frame_error" },
 606         { "rx_extra_byte" },
 607         { "rx_late_collision" },
 608         { "rx_runt" },
 609         { "rx_frame_too_long" },
 610         { "rx_over_errors" },
 611         { "rx_crc_errors" },
 612         { "rx_frame_align_error" },
 613         { "rx_length_error" },
 614         { "rx_unicast" },
 615         { "rx_multicast" },
 616         { "rx_broadcast" },
 617         { "rx_packets" },
 618         { "rx_errors_total" },
 619         { "tx_errors_total" },
 620
 621         /* version 2 stats */
 622         { "tx_deferral" },
 623         { "tx_packets" },
 624         { "rx_bytes" },
 625         { "tx_pause" },
 626         { "rx_pause" },
 627         { "rx_drop_frame" },
 628
 629         /* version 3 stats */
 630         { "tx_unicast" },
 631         { "tx_multicast" },
 632         { "tx_broadcast" }
 633 };
 634
 635 struct nv_ethtool_stats {
 636         u64 tx_bytes;
 637         u64 tx_zero_rexmt;
 638         u64 tx_one_rexmt;
 639         u64 tx_many_rexmt;
 640         u64 tx_late_collision;
 641         u64 tx_fifo_errors;
 642         u64 tx_carrier_errors;
 643         u64 tx_excess_deferral;
 644         u64 tx_retry_error;
 645         u64 rx_frame_error;
 646         u64 rx_extra_byte;
 647         u64 rx_late_collision;
 648         u64 rx_runt;
 649         u64 rx_frame_too_long;
 650         u64 rx_over_errors;
 651         u64 rx_crc_errors;
 652         u64 rx_frame_align_error;
 653         u64 rx_length_error;
 654         u64 rx_unicast;
 655         u64 rx_multicast;
 656         u64 rx_broadcast;
 657         u64 rx_packets;
 658         u64 rx_errors_total;
 659         u64 tx_errors_total;
 660
 661         /* version 2 stats */
 662         u64 tx_deferral;
 663         u64 tx_packets;
 664         u64 rx_bytes;
 665         u64 tx_pause;
 666         u64 rx_pause;
 667         u64 rx_drop_frame;
 668
 669         /* version 3 stats */
 670         u64 tx_unicast;
 671         u64 tx_multicast;
 672         u64 tx_broadcast;
 673 };
 674
 675 #define NV_DEV_STATISTICS_V3_COUNT (sizeof(struct nv_ethtool_stats)/sizeof(u64))
 676 #define NV_DEV_STATISTICS_V2_COUNT (NV_DEV_STATISTICS_V3_COUNT - 3)
 677 #define NV_DEV_STATISTICS_V1_COUNT (NV_DEV_STATISTICS_V2_COUNT - 6)
 678
 679 /* diagnostics */
 680 #define NV_TEST_COUNT_BASE 3
 681 #define NV_TEST_COUNT_EXTENDED 4
 682
 683 static const struct nv_ethtool_str nv_etests_str[] = {
 684         { "link      (online/offline)" },
 685         { "register  (offline)       " },
 686         { "interrupt (offline)       " },
 687         { "loopback  (offline)       " }
 688 };
 689
 690 struct register_test {
 691         __u32 reg;
 692         __u32 mask;
 693 };
 694
 695 static const struct register_test nv_registers_test[] = {
 696         { NvRegUnknownSetupReg6, 0x01 },
 697         { NvRegMisc1, 0x03c },
 698         { NvRegOffloadConfig, 0x03ff },
 699         { NvRegMulticastAddrA, 0xffffffff },
 700         { NvRegTxWatermark, 0x0ff },
 701         { NvRegWakeUpFlags, 0x07777 },
 702         { 0,0 }
 703 };
 704
 705 struct nv_skb_map {
 706         struct sk_buff *skb;
 707         dma_addr_t dma;
 708         unsigned int dma_len;
 709         struct ring_desc_ex *first_tx_desc;
 710         struct nv_skb_map *next_tx_ctx;
 711 };
 712
 713 /*
 714  * SMP locking:
 715  * All hardware access under netdev_priv(dev)->lock, except the performance
 716  * critical parts:
 717  * - rx is (pseudo-) lockless: it relies on the single-threading provided
 718  *      by the arch code for interrupts.
 719  * - tx setup is lockless: it relies on netif_tx_lock. Actual submission
 720  *      needs netdev_priv(dev)->lock :-(
 721  * - set_multicast_list: preparation lockless, relies on netif_tx_lock.
 722  */
 723
 724 /* in dev: base, irq */
 725 struct fe_priv {
 726         spinlock_t lock;
 727
 728         struct net_device *dev;
 729         struct napi_struct napi;
 730
 731         /* General data:
 732          * Locking: spin_lock(&np->lock); */
 733         struct nv_ethtool_stats estats;
 734         int in_shutdown;
 735         u32 linkspeed;
 736         int duplex;
 737         int autoneg;
 738         int fixed_mode;
 739         int phyaddr;
 740         int wolenabled;
 741         unsigned int phy_oui;
 742         unsigned int phy_model;
 743         unsigned int phy_rev;
 744         u16 gigabit;
 745         int intr_test;
 746         int recover_error;
 747
 748         /* General data: RO fields */
 749         dma_addr_t ring_addr;
 750         struct pci_dev *pci_dev;
 751         u32 orig_mac[2];
 752         u32 irqmask;
 753         u32 desc_ver;
 754         u32 txrxctl_bits;
 755         u32 vlanctl_bits;
 756         u32 driver_data;
 757         u32 device_id;
 758         u32 register_size;
 759         int rx_csum;
 760         u32 mac_in_use;
 761
 762         void __iomem *base;
 763
 764         /* rx specific fields.
 765          * Locking: Within irq hander or disable_irq+spin_lock(&np->lock);
 766          */
 767         union ring_type get_rx, put_rx, first_rx, last_rx;
 768         struct nv_skb_map *get_rx_ctx, *put_rx_ctx;
 769         struct nv_skb_map *first_rx_ctx, *last_rx_ctx;
 770         struct nv_skb_map *rx_skb;
 771
 772         union ring_type rx_ring;
 773         unsigned int rx_buf_sz;
 774         unsigned int pkt_limit;
 775         struct timer_list oom_kick;
 776         struct timer_list nic_poll;
 777         struct timer_list stats_poll;
 778         u32 nic_poll_irq;
 779         int rx_ring_size;
 780
 781         /* media detection workaround.
 782          * Locking: Within irq hander or disable_irq+spin_lock(&np->lock);
 783          */
 784         int need_linktimer;
 785         unsigned long link_timeout;
 786         /*
 787          * tx specific fields.
 788          */
 789         union ring_type get_tx, put_tx, first_tx, last_tx;
 790         struct nv_skb_map *get_tx_ctx, *put_tx_ctx;
 791         struct nv_skb_map *first_tx_ctx, *last_tx_ctx;
 792         struct nv_skb_map *tx_skb;
 793
 794         union ring_type tx_ring;
 795         u32 tx_flags;
 796         int tx_ring_size;
 797         int tx_limit;
 798         u32 tx_pkts_in_progress;
 799         struct nv_skb_map *tx_change_owner;
 800         struct nv_skb_map *tx_end_flip;
 801         int tx_stop;
 802
 803         /* vlan fields */
 804         struct vlan_group *vlangrp;
 805
 806         /* msi/msi-x fields */
 807         u32 msi_flags;
 808         struct msix_entry msi_x_entry[NV_MSI_X_MAX_VECTORS];
 809
 810         /* flow control */
 811         u32 pause_flags;
 812
 813         /* power saved state */
 814         u32 saved_config_space[NV_PCI_REGSZ_MAX/4];
 815 };
 816
 817 /*
 818  * Maximum number of loops until we assume that a bit in the irq mask
 819  * is stuck. Overridable with module param.
 820  */
 821 static int max_interrupt_work = 15;
 822
 823 /*
 824  * Optimization can be either throuput mode or cpu mode
 825  *
 826  * Throughput Mode: Every tx and rx packet will generate an interrupt.
 827  * CPU Mode: Interrupts are controlled by a timer.
 828  */
 829 enum {
 830         NV_OPTIMIZATION_MODE_THROUGHPUT,
 831         NV_OPTIMIZATION_MODE_CPU
 832 };
 833 static int optimization_mode = NV_OPTIMIZATION_MODE_THROUGHPUT;
 834
 835 /*
 836  * Poll interval for timer irq
 837  *
 838  * This interval determines how frequent an interrupt is generated.
 839  * The is value is determined by [(time_in_micro_secs * 100) / (2^10)]
 840  * Min = 0, and Max = 65535
 841  */
 842 static int poll_interval = -1;
 843
 844 /*
 845  * MSI interrupts
 846  */
 847 enum {
 848         NV_MSI_INT_DISABLED,
 849         NV_MSI_INT_ENABLED
 850 };
 851 static int msi = NV_MSI_INT_ENABLED;
 852
 853 /*
 854  * MSIX interrupts
 855  */
 856 enum {
 857         NV_MSIX_INT_DISABLED,
 858         NV_MSIX_INT_ENABLED
 859 };
 860 static int msix = NV_MSIX_INT_DISABLED;
 861
 862 /*
 863  * DMA 64bit
 864  */
 865 enum {
 866         NV_DMA_64BIT_DISABLED,
 867         NV_DMA_64BIT_ENABLED
 868 };
 869 static int dma_64bit = NV_DMA_64BIT_ENABLED;
 870
 871 /*
 872  * Crossover Detection
 873  * Realtek 8201 phy + some OEM boards do not work properly.
 874  */
 875 enum {
 876         NV_CROSSOVER_DETECTION_DISABLED,
 877         NV_CROSSOVER_DETECTION_ENABLED
 878 };
 879 static int phy_cross = NV_CROSSOVER_DETECTION_DISABLED;
 880
 881 static inline struct fe_priv *get_nvpriv(struct net_device *dev)
 882 {
 883         return netdev_priv(dev);
 884 }
 885
 886 static inline u8 __iomem *get_hwbase(struct net_device *dev)
 887 {
 888         return ((struct fe_priv *)netdev_priv(dev))->base;
 889 }
 890
 891 static inline void pci_push(u8 __iomem *base)
 892 {
 893         /* force out pending posted writes */
 894         readl(base);
 895 }
 896
 897 static inline u32 nv_descr_getlength(struct ring_desc *prd, u32 v)
 898 {
 899         return le32_to_cpu(prd->flaglen)
 900                 & ((v == DESC_VER_1) ? LEN_MASK_V1 : LEN_MASK_V2);
 901 }
 902
 903 static inline u32 nv_descr_getlength_ex(struct ring_desc_ex *prd, u32 v)
 904 {
 905         return le32_to_cpu(prd->flaglen) & LEN_MASK_V2;
 906 }
 907
 908 static bool nv_optimized(struct fe_priv *np)
 909 {
 910         if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2)
 911                 return false;
 912         return true;
 913 }
 914
 915 static int reg_delay(struct net_device *dev, int offset, u32 mask, u32 target,
 916                                 int delay, int delaymax, const char *msg)
 917 {
 918         u8 __iomem *base = get_hwbase(dev);
 919
 920         pci_push(base);
 921         do {
 922                 udelay(delay);
 923                 delaymax -= delay;
 924                 if (delaymax < 0) {
 925                         if (msg)
 926                                 printk(msg);
 927                         return 1;
 928                 }
 929         } while ((readl(base + offset) & mask) != target);
 930         return 0;
 931 }
 932
 933 #define NV_SETUP_RX_RING 0x01
 934 #define NV_SETUP_TX_RING 0x02
 935
 936 static inline u32 dma_low(dma_addr_t addr)
 937 {
 938         return addr;
 939 }
 940
 941 static inline u32 dma_high(dma_addr_t addr)
 942 {
 943         return addr>>31>>1;     /* 0 if 32bit, shift down by 32 if 64bit */
 944 }
 945
 946 static void setup_hw_rings(struct net_device *dev, int rxtx_flags)
 947 {
 948         struct fe_priv *np = get_nvpriv(dev);
 949         u8 __iomem *base = get_hwbase(dev);
 950
 951         if (!nv_optimized(np)) {
 952                 if (rxtx_flags & NV_SETUP_RX_RING) {
 953                         writel(dma_low(np->ring_addr), base + NvRegRxRingPhysAddr);
 954                 }
 955                 if (rxtx_flags & NV_SETUP_TX_RING) {
 956                         writel(dma_low(np->ring_addr + np->rx_ring_size*sizeof(struct ring_desc)), base + NvRegTxRingPhysAddr);
 957                 }
 958         } else {
 959                 if (rxtx_flags & NV_SETUP_RX_RING) {
 960                         writel(dma_low(np->ring_addr), base + NvRegRxRingPhysAddr);
 961                         writel(dma_high(np->ring_addr), base + NvRegRxRingPhysAddrHigh);
 962                 }
 963                 if (rxtx_flags & NV_SETUP_TX_RING) {
 964                         writel(dma_low(np->ring_addr + np->rx_ring_size*sizeof(struct ring_desc_ex)), base + NvRegTxRingPhysAddr);
 965                         writel(dma_high(np->ring_addr + np->rx_ring_size*sizeof(struct ring_desc_ex)), base + NvRegTxRingPhysAddrHigh);
 966                 }
 967         }
 968 }
 969
 970 static void free_rings(struct net_device *dev)
 971 {
 972         struct fe_priv *np = get_nvpriv(dev);
 973
 974         if (!nv_optimized(np)) {
 975                 if (np->rx_ring.orig)
 976                         pci_free_consistent(np->pci_dev, sizeof(struct ring_desc) * (np->rx_ring_size + np->tx_ring_size),
 977                                             np->rx_ring.orig, np->ring_addr);
 978         } else {
 979                 if (np->rx_ring.ex)
 980                         pci_free_consistent(np->pci_dev, sizeof(struct ring_desc_ex) * (np->rx_ring_size + np->tx_ring_size),
 981                                             np->rx_ring.ex, np->ring_addr);
 982         }
 983         if (np->rx_skb)
 984                 kfree(np->rx_skb);
 985         if (np->tx_skb)
 986                 kfree(np->tx_skb);
 987 }
 988
 989 static int using_multi_irqs(struct net_device *dev)
 990 {
 991         struct fe_priv *np = get_nvpriv(dev);
 992
 993         if (!(np->msi_flags & NV_MSI_X_ENABLED) ||
 994             ((np->msi_flags & NV_MSI_X_ENABLED) &&
 995              ((np->msi_flags & NV_MSI_X_VECTORS_MASK) == 0x1)))
 996                 return 0;
 997         else
 998                 return 1;
 999 }
1000
1001 static void nv_enable_irq(struct net_device *dev)
1002 {
1003         struct fe_priv *np = get_nvpriv(dev);
1004
1005         if (!using_multi_irqs(dev)) {
1006                 if (np->msi_flags & NV_MSI_X_ENABLED)
1007                         enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector);
1008                 else
1009                         enable_irq(np->pci_dev->irq);
1010         } else {
1011                 enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector);
1012                 enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector);
1013                 enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_OTHER].vector);
1014         }
1015 }
1016
1017 static void nv_disable_irq(struct net_device *dev)
1018 {
1019         struct fe_priv *np = get_nvpriv(dev);
1020
1021         if (!using_multi_irqs(dev)) {
1022                 if (np->msi_flags & NV_MSI_X_ENABLED)
1023                         disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector);
1024                 else
1025                         disable_irq(np->pci_dev->irq);
1026         } else {
1027                 disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector);
1028                 disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector);
1029                 disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_OTHER].vector);
1030         }
1031 }
1032
1033 /* In MSIX mode, a write to irqmask behaves as XOR */
1034 static void nv_enable_hw_interrupts(struct net_device *dev, u32 mask)
1035 {
1036         u8 __iomem *base = get_hwbase(dev);
1037
1038         writel(mask, base + NvRegIrqMask);
1039 }
1040
1041 static void nv_disable_hw_interrupts(struct net_device *dev, u32 mask)
1042 {
1043         struct fe_priv *np = get_nvpriv(dev);
1044         u8 __iomem *base = get_hwbase(dev);
1045
1046         if (np->msi_flags & NV_MSI_X_ENABLED) {
1047                 writel(mask, base + NvRegIrqMask);
1048         } else {
1049                 if (np->msi_flags & NV_MSI_ENABLED)
1050                         writel(0, base + NvRegMSIIrqMask);
1051                 writel(0, base + NvRegIrqMask);
1052         }
1053 }
1054
1055 #define MII_READ        (-1)
1056 /* mii_rw: read/write a register on the PHY.
1057  *
1058  * Caller must guarantee serialization
1059  */
1060 static int mii_rw(struct net_device *dev, int addr, int miireg, int value)
1061 {
1062         u8 __iomem *base = get_hwbase(dev);
1063         u32 reg;
1064         int retval;
1065
1066         writel(NVREG_MIISTAT_MASK_RW, base + NvRegMIIStatus);
1067
1068         reg = readl(base + NvRegMIIControl);
1069         if (reg & NVREG_MIICTL_INUSE) {
1070                 writel(NVREG_MIICTL_INUSE, base + NvRegMIIControl);
1071                 udelay(NV_MIIBUSY_DELAY);
1072         }
1073
1074         reg = (addr << NVREG_MIICTL_ADDRSHIFT) | miireg;
1075         if (value != MII_READ) {
1076                 writel(value, base + NvRegMIIData);
1077                 reg |= NVREG_MIICTL_WRITE;
1078         }
1079         writel(reg, base + NvRegMIIControl);
1080
1081         if (reg_delay(dev, NvRegMIIControl, NVREG_MIICTL_INUSE, 0,
1082                         NV_MIIPHY_DELAY, NV_MIIPHY_DELAYMAX, NULL)) {
1083                 dprintk(KERN_DEBUG "%s: mii_rw of reg %d at PHY %d timed out.\n",
1084                                 dev->name, miireg, addr);
1085                 retval = -1;
1086         } else if (value != MII_READ) {
1087                 /* it was a write operation - fewer failures are detectable */
1088                 dprintk(KERN_DEBUG "%s: mii_rw wrote 0x%x to reg %d at PHY %d\n",
1089                                 dev->name, value, miireg, addr);
1090                 retval = 0;
1091         } else if (readl(base + NvRegMIIStatus) & NVREG_MIISTAT_ERROR) {
1092                 dprintk(KERN_DEBUG "%s: mii_rw of reg %d at PHY %d failed.\n",
1093                                 dev->name, miireg, addr);
1094                 retval = -1;
1095         } else {
1096                 retval = readl(base + NvRegMIIData);
1097                 dprintk(KERN_DEBUG "%s: mii_rw read from reg %d at PHY %d: 0x%x.\n",
1098                                 dev->name, miireg, addr, retval);
1099         }
1100
1101         return retval;
1102 }
1103
1104 static int phy_reset(struct net_device *dev, u32 bmcr_setup)
1105 {
1106         struct fe_priv *np = netdev_priv(dev);
1107         u32 miicontrol;
1108         unsigned int tries = 0;
1109
1110         miicontrol = BMCR_RESET | bmcr_setup;
1111         if (mii_rw(dev, np->phyaddr, MII_BMCR, miicontrol)) {
1112                 return -1;
1113         }
1114
1115         /* wait for 500ms */
1116         msleep(500);
1117
1118         /* must wait till reset is deasserted */
1119         while (miicontrol & BMCR_RESET) {
1120                 msleep(10);
1121                 miicontrol = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
1122                 /* FIXME: 100 tries seem excessive */
1123                 if (tries++ > 100)
1124                         return -1;
1125         }
1126         return 0;
1127 }
1128
1129 static int phy_init(struct net_device *dev)
1130 {
1131         struct fe_priv *np = get_nvpriv(dev);
1132         u8 __iomem *base = get_hwbase(dev);
1133         u32 phyinterface, phy_reserved, mii_status, mii_control, mii_control_1000,reg;
1134
1135         /* phy errata for E3016 phy */
1136         if (np->phy_model == PHY_MODEL_MARVELL_E3016) {
1137                 reg = mii_rw(dev, np->phyaddr, MII_NCONFIG, MII_READ);
1138                 reg &= ~PHY_MARVELL_E3016_INITMASK;
1139                 if (mii_rw(dev, np->phyaddr, MII_NCONFIG, reg)) {
1140                         printk(KERN_INFO "%s: phy write to errata reg failed.\n", pci_name(np->pci_dev));
1141                         return PHY_ERROR;
1142                 }
1143         }
1144         if (np->phy_oui == PHY_OUI_REALTEK) {
1145                 if (np->phy_model == PHY_MODEL_REALTEK_8211 &&
1146                     np->phy_rev == PHY_REV_REALTEK_8211B) {
1147                         if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT1)) {
1148                                 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1149                                 return PHY_ERROR;
1150                         }
1151                         if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG2, PHY_REALTEK_INIT2)) {
1152                                 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1153                                 return PHY_ERROR;
1154                         }
1155                         if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT3)) {
1156                                 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1157                                 return PHY_ERROR;
1158                         }
1159                         if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG3, PHY_REALTEK_INIT4)) {
1160                                 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1161                                 return PHY_ERROR;
1162                         }
1163                         if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG4, PHY_REALTEK_INIT5)) {
1164                                 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1165                                 return PHY_ERROR;
1166                         }
1167                         if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG5, PHY_REALTEK_INIT6)) {
1168                                 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1169                                 return PHY_ERROR;
1170                         }
1171                         if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT1)) {
1172                                 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1173                                 return PHY_ERROR;
1174                         }
1175                 }
1176                 if (np->phy_model == PHY_MODEL_REALTEK_8211 &&
1177                     np->phy_rev == PHY_REV_REALTEK_8211C) {
1178                         u32 powerstate = readl(base + NvRegPowerState2);
1179
1180                         /* need to perform hw phy reset */
1181                         powerstate |= NVREG_POWERSTATE2_PHY_RESET;
1182                         writel(powerstate, base + NvRegPowerState2);
1183                         msleep(25);
1184
1185                         powerstate &= ~NVREG_POWERSTATE2_PHY_RESET;
1186                         writel(powerstate, base + NvRegPowerState2);
1187                         msleep(25);
1188
1189                         reg = mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG6, MII_READ);
1190                         reg |= PHY_REALTEK_INIT9;
1191                         if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG6, reg)) {
1192                                 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1193                                 return PHY_ERROR;
1194                         }
1195                         if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT10)) {
1196                                 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1197                                 return PHY_ERROR;
1198                         }
1199                         reg = mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG7, MII_READ);
1200                         if (!(reg & PHY_REALTEK_INIT11)) {
1201                                 reg |= PHY_REALTEK_INIT11;
1202                                 if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG7, reg)) {
1203                                         printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1204                                         return PHY_ERROR;
1205                                 }
1206                         }
1207                         if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT1)) {
1208                                 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1209                                 return PHY_ERROR;
1210                         }
1211                 }
1212                 if (np->phy_model == PHY_MODEL_REALTEK_8201) {
1213                         if (np->device_id == PCI_DEVICE_ID_NVIDIA_NVENET_32 ||
1214                             np->device_id == PCI_DEVICE_ID_NVIDIA_NVENET_33 ||
1215                             np->device_id == PCI_DEVICE_ID_NVIDIA_NVENET_34 ||
1216                             np->device_id == PCI_DEVICE_ID_NVIDIA_NVENET_35 ||
1217                             np->device_id == PCI_DEVICE_ID_NVIDIA_NVENET_36 ||
1218                             np->device_id == PCI_DEVICE_ID_NVIDIA_NVENET_37 ||
1219                             np->device_id == PCI_DEVICE_ID_NVIDIA_NVENET_38 ||
1220                             np->device_id == PCI_DEVICE_ID_NVIDIA_NVENET_39) {
1221                                 phy_reserved = mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG6, MII_READ);
1222                                 phy_reserved |= PHY_REALTEK_INIT7;
1223                                 if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG6, phy_reserved)) {
1224                                         printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1225                                         return PHY_ERROR;
1226                                 }
1227                         }
1228                 }
1229         }
1230
1231         /* set advertise register */
1232         reg = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ);
1233         reg |= (ADVERTISE_10HALF|ADVERTISE_10FULL|ADVERTISE_100HALF|ADVERTISE_100FULL|ADVERTISE_PAUSE_ASYM|ADVERTISE_PAUSE_CAP);
1234         if (mii_rw(dev, np->phyaddr, MII_ADVERTISE, reg)) {
1235                 printk(KERN_INFO "%s: phy write to advertise failed.\n", pci_name(np->pci_dev));
1236                 return PHY_ERROR;
1237         }
1238
1239         /* get phy interface type */
1240         phyinterface = readl(base + NvRegPhyInterface);
1241
1242         /* see if gigabit phy */
1243         mii_status = mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ);
1244         if (mii_status & PHY_GIGABIT) {
1245                 np->gigabit = PHY_GIGABIT;
1246                 mii_control_1000 = mii_rw(dev, np->phyaddr, MII_CTRL1000, MII_READ);
1247                 mii_control_1000 &= ~ADVERTISE_1000HALF;
1248                 if (phyinterface & PHY_RGMII)
1249                         mii_control_1000 |= ADVERTISE_1000FULL;
1250                 else
1251                         mii_control_1000 &= ~ADVERTISE_1000FULL;
1252
1253                 if (mii_rw(dev, np->phyaddr, MII_CTRL1000, mii_control_1000)) {
1254                         printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1255                         return PHY_ERROR;
1256                 }
1257         }
1258         else
1259                 np->gigabit = 0;
1260
1261         mii_control = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
1262         mii_control |= BMCR_ANENABLE;
1263
1264         if (np->phy_oui == PHY_OUI_REALTEK &&
1265             np->phy_model == PHY_MODEL_REALTEK_8211 &&
1266             np->phy_rev == PHY_REV_REALTEK_8211C) {
1267                 /* start autoneg since we already performed hw reset above */
1268                 mii_control |= BMCR_ANRESTART;
1269                 if (mii_rw(dev, np->phyaddr, MII_BMCR, mii_control)) {
1270                         printk(KERN_INFO "%s: phy init failed\n", pci_name(np->pci_dev));
1271                         return PHY_ERROR;
1272                 }
1273         } else {
1274                 /* reset the phy
1275                  * (certain phys need bmcr to be setup with reset)
1276                  */
1277                 if (phy_reset(dev, mii_control)) {
1278                         printk(KERN_INFO "%s: phy reset failed\n", pci_name(np->pci_dev));
1279                         return PHY_ERROR;
1280                 }
1281         }
1282
1283         /* phy vendor specific configuration */
1284         if ((np->phy_oui == PHY_OUI_CICADA) && (phyinterface & PHY_RGMII) ) {
1285                 phy_reserved = mii_rw(dev, np->phyaddr, MII_RESV1, MII_READ);
1286                 phy_reserved &= ~(PHY_CICADA_INIT1 | PHY_CICADA_INIT2);
1287                 phy_reserved |= (PHY_CICADA_INIT3 | PHY_CICADA_INIT4);
1288                 if (mii_rw(dev, np->phyaddr, MII_RESV1, phy_reserved)) {
1289                         printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1290                         return PHY_ERROR;
1291                 }
1292                 phy_reserved = mii_rw(dev, np->phyaddr, MII_NCONFIG, MII_READ);
1293                 phy_reserved |= PHY_CICADA_INIT5;
1294                 if (mii_rw(dev, np->phyaddr, MII_NCONFIG, phy_reserved)) {
1295                         printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1296                         return PHY_ERROR;
1297                 }
1298         }
1299         if (np->phy_oui == PHY_OUI_CICADA) {
1300                 phy_reserved = mii_rw(dev, np->phyaddr, MII_SREVISION, MII_READ);
1301                 phy_reserved |= PHY_CICADA_INIT6;
1302                 if (mii_rw(dev, np->phyaddr, MII_SREVISION, phy_reserved)) {
1303                         printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1304                         return PHY_ERROR;
1305                 }
1306         }
1307         if (np->phy_oui == PHY_OUI_VITESSE) {
1308                 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG1, PHY_VITESSE_INIT1)) {
1309                         printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1310                         return PHY_ERROR;
1311                 }
1312                 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT2)) {
1313                         printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1314                         return PHY_ERROR;
1315                 }
1316                 phy_reserved = mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG4, MII_READ);
1317                 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG4, phy_reserved)) {
1318                         printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1319                         return PHY_ERROR;
1320                 }
1321                 phy_reserved = mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG3, MII_READ);
1322                 phy_reserved &= ~PHY_VITESSE_INIT_MSK1;
1323                 phy_reserved |= PHY_VITESSE_INIT3;
1324                 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG3, phy_reserved)) {
1325                         printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1326                         return PHY_ERROR;
1327                 }
1328                 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT4)) {
1329                         printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1330                         return PHY_ERROR;
1331                 }
1332                 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT5)) {
1333                         printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1334                         return PHY_ERROR;
1335                 }
1336                 phy_reserved = mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG4, MII_READ);
1337                 phy_reserved &= ~PHY_VITESSE_INIT_MSK1;
1338                 phy_reserved |= PHY_VITESSE_INIT3;
1339                 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG4, phy_reserved)) {
1340                         printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1341                         return PHY_ERROR;
1342                 }
1343                 phy_reserved = mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG3, MII_READ);
1344                 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG3, phy_reserved)) {
1345                         printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1346                         return PHY_ERROR;
1347                 }
1348                 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT6)) {
1349                         printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1350                         return PHY_ERROR;
1351                 }
1352                 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT7)) {
1353                         printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1354                         return PHY_ERROR;
1355                 }
1356                 phy_reserved = mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG4, MII_READ);
1357                 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG4, phy_reserved)) {
1358                         printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1359                         return PHY_ERROR;
1360                 }
1361                 phy_reserved = mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG3, MII_READ);
1362                 phy_reserved &= ~PHY_VITESSE_INIT_MSK2;
1363                 phy_reserved |= PHY_VITESSE_INIT8;
1364                 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG3, phy_reserved)) {
1365                         printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1366                         return PHY_ERROR;
1367                 }
1368                 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG2, PHY_VITESSE_INIT9)) {
1369                         printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1370                         return PHY_ERROR;
1371                 }
1372                 if (mii_rw(dev, np->phyaddr, PHY_VITESSE_INIT_REG1, PHY_VITESSE_INIT10)) {
1373                         printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1374                         return PHY_ERROR;
1375                 }
1376         }
1377         if (np->phy_oui == PHY_OUI_REALTEK) {
1378                 if (np->phy_model == PHY_MODEL_REALTEK_8211 &&
1379                     np->phy_rev == PHY_REV_REALTEK_8211B) {
1380                         /* reset could have cleared these out, set them back */
1381                         if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT1)) {
1382                                 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1383                                 return PHY_ERROR;
1384                         }
1385                         if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG2, PHY_REALTEK_INIT2)) {
1386                                 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1387                                 return PHY_ERROR;
1388                         }
1389                         if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT3)) {
1390                                 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1391                                 return PHY_ERROR;
1392                         }
1393                         if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG3, PHY_REALTEK_INIT4)) {
1394                                 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1395                                 return PHY_ERROR;
1396                         }
1397                         if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG4, PHY_REALTEK_INIT5)) {
1398                                 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1399                                 return PHY_ERROR;
1400                         }
1401                         if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG5, PHY_REALTEK_INIT6)) {
1402                                 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1403                                 return PHY_ERROR;
1404                         }
1405                         if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT1)) {
1406                                 printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1407                                 return PHY_ERROR;
1408                         }
1409                 }
1410                 if (np->phy_model == PHY_MODEL_REALTEK_8201) {
1411                         if (np->device_id == PCI_DEVICE_ID_NVIDIA_NVENET_32 ||
1412                             np->device_id == PCI_DEVICE_ID_NVIDIA_NVENET_33 ||
1413                             np->device_id == PCI_DEVICE_ID_NVIDIA_NVENET_34 ||
1414                             np->device_id == PCI_DEVICE_ID_NVIDIA_NVENET_35 ||
1415                             np->device_id == PCI_DEVICE_ID_NVIDIA_NVENET_36 ||
1416                             np->device_id == PCI_DEVICE_ID_NVIDIA_NVENET_37 ||
1417                             np->device_id == PCI_DEVICE_ID_NVIDIA_NVENET_38 ||
1418                             np->device_id == PCI_DEVICE_ID_NVIDIA_NVENET_39) {
1419                                 phy_reserved = mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG6, MII_READ);
1420                                 phy_reserved |= PHY_REALTEK_INIT7;
1421                                 if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG6, phy_reserved)) {
1422                                         printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1423                                         return PHY_ERROR;
1424                                 }
1425                         }
1426                         if (phy_cross == NV_CROSSOVER_DETECTION_DISABLED) {
1427                                 if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT3)) {
1428                                         printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1429                                         return PHY_ERROR;
1430                                 }
1431                                 phy_reserved = mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG2, MII_READ);
1432                                 phy_reserved &= ~PHY_REALTEK_INIT_MSK1;
1433                                 phy_reserved |= PHY_REALTEK_INIT3;
1434                                 if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG2, phy_reserved)) {
1435                                         printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1436                                         return PHY_ERROR;
1437                                 }
1438                                 if (mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT1)) {
1439                                         printk(KERN_INFO "%s: phy init failed.\n", pci_name(np->pci_dev));
1440                                         return PHY_ERROR;
1441                                 }
1442                         }
1443                 }
1444         }
1445
1446         /* some phys clear out pause advertisment on reset, set it back */
1447         mii_rw(dev, np->phyaddr, MII_ADVERTISE, reg);
1448
1449         /* restart auto negotiation, power down phy */
1450         mii_control = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
1451         mii_control |= (BMCR_ANRESTART | BMCR_ANENABLE | BMCR_PDOWN);
1452         if (mii_rw(dev, np->phyaddr, MII_BMCR, mii_control)) {
1453                 return PHY_ERROR;
1454         }
1455
1456         return 0;
1457 }
1458
1459 static void nv_start_rx(struct net_device *dev)
1460 {
1461         struct fe_priv *np = netdev_priv(dev);
1462         u8 __iomem *base = get_hwbase(dev);
1463         u32 rx_ctrl = readl(base + NvRegReceiverControl);
1464
1465         dprintk(KERN_DEBUG "%s: nv_start_rx\n", dev->name);
1466         /* Already running? Stop it. */
1467         if ((readl(base + NvRegReceiverControl) & NVREG_RCVCTL_START) && !np->mac_in_use) {
1468                 rx_ctrl &= ~NVREG_RCVCTL_START;
1469                 writel(rx_ctrl, base + NvRegReceiverControl);
1470                 pci_push(base);
1471         }
1472         writel(np->linkspeed, base + NvRegLinkSpeed);
1473         pci_push(base);
1474         rx_ctrl |= NVREG_RCVCTL_START;
1475         if (np->mac_in_use)
1476                 rx_ctrl &= ~NVREG_RCVCTL_RX_PATH_EN;
1477         writel(rx_ctrl, base + NvRegReceiverControl);
1478         dprintk(KERN_DEBUG "%s: nv_start_rx to duplex %d, speed 0x%08x.\n",
1479                                 dev->name, np->duplex, np->linkspeed);
1480         pci_push(base);
1481 }
1482
1483 static void nv_stop_rx(struct net_device *dev)
1484 {
1485         struct fe_priv *np = netdev_priv(dev);
1486         u8 __iomem *base = get_hwbase(dev);
1487         u32 rx_ctrl = readl(base + NvRegReceiverControl);
1488
1489         dprintk(KERN_DEBUG "%s: nv_stop_rx\n", dev->name);
1490         if (!np->mac_in_use)
1491                 rx_ctrl &= ~NVREG_RCVCTL_START;
1492         else
1493                 rx_ctrl |= NVREG_RCVCTL_RX_PATH_EN;
1494         writel(rx_ctrl, base + NvRegReceiverControl);
1495         reg_delay(dev, NvRegReceiverStatus, NVREG_RCVSTAT_BUSY, 0,
1496                         NV_RXSTOP_DELAY1, NV_RXSTOP_DELAY1MAX,
1497                         KERN_INFO "nv_stop_rx: ReceiverStatus remained busy");
1498
1499         udelay(NV_RXSTOP_DELAY2);
1500         if (!np->mac_in_use)
1501                 writel(0, base + NvRegLinkSpeed);
1502 }
1503
1504 static void nv_start_tx(struct net_device *dev)
1505 {
1506         struct fe_priv *np = netdev_priv(dev);
1507         u8 __iomem *base = get_hwbase(dev);
1508         u32 tx_ctrl = readl(base + NvRegTransmitterControl);
1509
1510         dprintk(KERN_DEBUG "%s: nv_start_tx\n", dev->name);
1511         tx_ctrl |= NVREG_XMITCTL_START;
1512         if (np->mac_in_use)
1513                 tx_ctrl &= ~NVREG_XMITCTL_TX_PATH_EN;
1514         writel(tx_ctrl, base + NvRegTransmitterControl);
1515         pci_push(base);
1516 }
1517
1518 static void nv_stop_tx(struct net_device *dev)
1519 {
1520         struct fe_priv *np = netdev_priv(dev);
1521         u8 __iomem *base = get_hwbase(dev);
1522         u32 tx_ctrl = readl(base + NvRegTransmitterControl);
1523
1524         dprintk(KERN_DEBUG "%s: nv_stop_tx\n", dev->name);
1525         if (!np->mac_in_use)
1526                 tx_ctrl &= ~NVREG_XMITCTL_START;
1527         else
1528                 tx_ctrl |= NVREG_XMITCTL_TX_PATH_EN;
1529         writel(tx_ctrl, base + NvRegTransmitterControl);
1530         reg_delay(dev, NvRegTransmitterStatus, NVREG_XMITSTAT_BUSY, 0,
1531                         NV_TXSTOP_DELAY1, NV_TXSTOP_DELAY1MAX,
1532                         KERN_INFO "nv_stop_tx: TransmitterStatus remained busy");
1533
1534         udelay(NV_TXSTOP_DELAY2);
1535         if (!np->mac_in_use)
1536                 writel(readl(base + NvRegTransmitPoll) & NVREG_TRANSMITPOLL_MAC_ADDR_REV,
1537                        base + NvRegTransmitPoll);
1538 }
1539
1540 static void nv_start_rxtx(struct net_device *dev)
1541 {
1542         nv_start_rx(dev);
1543         nv_start_tx(dev);
1544 }
1545
1546 static void nv_stop_rxtx(struct net_device *dev)
1547 {
1548         nv_stop_rx(dev);
1549         nv_stop_tx(dev);
1550 }
1551
1552 static void nv_txrx_reset(struct net_device *dev)
1553 {
1554         struct fe_priv *np = netdev_priv(dev);
1555         u8 __iomem *base = get_hwbase(dev);
1556
1557         dprintk(KERN_DEBUG "%s: nv_txrx_reset\n", dev->name);
1558         writel(NVREG_TXRXCTL_BIT2 | NVREG_TXRXCTL_RESET | np->txrxctl_bits, base + NvRegTxRxControl);
1559         pci_push(base);
1560         udelay(NV_TXRX_RESET_DELAY);
1561         writel(NVREG_TXRXCTL_BIT2 | np->txrxctl_bits, base + NvRegTxRxControl);
1562         pci_push(base);
1563 }
1564
1565 static void nv_mac_reset(struct net_device *dev)
1566 {
1567         struct fe_priv *np = netdev_priv(dev);
1568         u8 __iomem *base = get_hwbase(dev);
1569         u32 temp1, temp2, temp3;
1570
1571         dprintk(KERN_DEBUG "%s: nv_mac_reset\n", dev->name);
1572
1573         writel(NVREG_TXRXCTL_BIT2 | NVREG_TXRXCTL_RESET | np->txrxctl_bits, base + NvRegTxRxControl);
1574         pci_push(base);
1575
1576         /* save registers since they will be cleared on reset */
1577         temp1 = readl(base + NvRegMacAddrA);
1578         temp2 = readl(base + NvRegMacAddrB);
1579         temp3 = readl(base + NvRegTransmitPoll);
1580
1581         writel(NVREG_MAC_RESET_ASSERT, base + NvRegMacReset);
1582         pci_push(base);
1583         udelay(NV_MAC_RESET_DELAY);
1584         writel(0, base + NvRegMacReset);
1585         pci_push(base);
1586         udelay(NV_MAC_RESET_DELAY);
1587
1588         /* restore saved registers */
1589         writel(temp1, base + NvRegMacAddrA);
1590         writel(temp2, base + NvRegMacAddrB);
1591         writel(temp3, base + NvRegTransmitPoll);
1592
1593         writel(NVREG_TXRXCTL_BIT2 | np->txrxctl_bits, base + NvRegTxRxControl);
1594         pci_push(base);
1595 }
1596
1597 static void nv_get_hw_stats(struct net_device *dev)
1598 {
1599         struct fe_priv *np = netdev_priv(dev);
1600         u8 __iomem *base = get_hwbase(dev);
1601
1602         np->estats.tx_bytes += readl(base + NvRegTxCnt);
1603         np->estats.tx_zero_rexmt += readl(base + NvRegTxZeroReXmt);
1604         np->estats.tx_one_rexmt += readl(base + NvRegTxOneReXmt);
1605         np->estats.tx_many_rexmt += readl(base + NvRegTxManyReXmt);
1606         np->estats.tx_late_collision += readl(base + NvRegTxLateCol);
1607         np->estats.tx_fifo_errors += readl(base + NvRegTxUnderflow);
1608         np->estats.tx_carrier_errors += readl(base + NvRegTxLossCarrier);
1609         np->estats.tx_excess_deferral += readl(base + NvRegTxExcessDef);
1610         np->estats.tx_retry_error += readl(base + NvRegTxRetryErr);
1611         np->estats.rx_frame_error += readl(base + NvRegRxFrameErr);
1612         np->estats.rx_extra_byte += readl(base + NvRegRxExtraByte);
1613         np->estats.rx_late_collision += readl(base + NvRegRxLateCol);
1614         np->estats.rx_runt += readl(base + NvRegRxRunt);
1615         np->estats.rx_frame_too_long += readl(base + NvRegRxFrameTooLong);
1616         np->estats.rx_over_errors += readl(base + NvRegRxOverflow);
1617         np->estats.rx_crc_errors += readl(base + NvRegRxFCSErr);
1618         np->estats.rx_frame_align_error += readl(base + NvRegRxFrameAlignErr);
1619         np->estats.rx_length_error += readl(base + NvRegRxLenErr);
1620         np->estats.rx_unicast += readl(base + NvRegRxUnicast);
1621         np->estats.rx_multicast += readl(base + NvRegRxMulticast);
1622         np->estats.rx_broadcast += readl(base + NvRegRxBroadcast);
1623         np->estats.rx_packets =
1624                 np->estats.rx_unicast +
1625                 np->estats.rx_multicast +
1626                 np->estats.rx_broadcast;
1627         np->estats.rx_errors_total =
1628                 np->estats.rx_crc_errors +
1629                 np->estats.rx_over_errors +
1630                 np->estats.rx_frame_error +
1631                 (np->estats.rx_frame_align_error - np->estats.rx_extra_byte) +
1632                 np->estats.rx_late_collision +
1633                 np->estats.rx_runt +
1634                 np->estats.rx_frame_too_long;
1635         np->estats.tx_errors_total =
1636                 np->estats.tx_late_collision +
1637                 np->estats.tx_fifo_errors +
1638                 np->estats.tx_carrier_errors +
1639                 np->estats.tx_excess_deferral +
1640                 np->estats.tx_retry_error;
1641
1642         if (np->driver_data & DEV_HAS_STATISTICS_V2) {
1643                 np->estats.tx_deferral += readl(base + NvRegTxDef);
1644                 np->estats.tx_packets += readl(base + NvRegTxFrame);
1645                 np->estats.rx_bytes += readl(base + NvRegRxCnt);
1646                 np->estats.tx_pause += readl(base + NvRegTxPause);
1647                 np->estats.rx_pause += readl(base + NvRegRxPause);
1648                 np->estats.rx_drop_frame += readl(base + NvRegRxDropFrame);
1649         }
1650
1651         if (np->driver_data & DEV_HAS_STATISTICS_V3) {
1652                 np->estats.tx_unicast += readl(base + NvRegTxUnicast);
1653                 np->estats.tx_multicast += readl(base + NvRegTxMulticast);
1654                 np->estats.tx_broadcast += readl(base + NvRegTxBroadcast);
1655         }
1656 }
1657
1658 /*
1659  * nv_get_stats: dev->get_stats function
1660  * Get latest stats value from the nic.
1661  * Called with read_lock(&dev_base_lock) held for read -
1662  * only synchronized against unregister_netdevice.
1663  */
1664 static struct net_device_stats *nv_get_stats(struct net_device *dev)
1665 {
1666         struct fe_priv *np = netdev_priv(dev);
1667
1668         /* If the nic supports hw counters then retrieve latest values */
1669         if (np->driver_data & (DEV_HAS_STATISTICS_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_STATISTICS_V3)) {
1670                 nv_get_hw_stats(dev);
1671
1672                 /* copy to net_device stats */
1673                 dev->stats.tx_bytes = np->estats.tx_bytes;
1674                 dev->stats.tx_fifo_errors = np->estats.tx_fifo_errors;
1675                 dev->stats.tx_carrier_errors = np->estats.tx_carrier_errors;
1676                 dev->stats.rx_crc_errors = np->estats.rx_crc_errors;
1677                 dev->stats.rx_over_errors = np->estats.rx_over_errors;
1678                 dev->stats.rx_errors = np->estats.rx_errors_total;
1679                 dev->stats.tx_errors = np->estats.tx_errors_total;
1680         }
1681
1682         return &dev->stats;
1683 }
1684
1685 /*
1686  * nv_alloc_rx: fill rx ring entries.
1687  * Return 1 if the allocations for the skbs failed and the
1688  * rx engine is without Available descriptors
1689  */
1690 static int nv_alloc_rx(struct net_device *dev)
1691 {
1692         struct fe_priv *np = netdev_priv(dev);
1693         struct ring_desc* less_rx;
1694
1695         less_rx = np->get_rx.orig;
1696         if (less_rx-- == np->first_rx.orig)
1697                 less_rx = np->last_rx.orig;
1698
1699         while (np->put_rx.orig != less_rx) {
1700                 struct sk_buff *skb = dev_alloc_skb(np->rx_buf_sz + NV_RX_ALLOC_PAD);
1701                 if (skb) {
1702                         np->put_rx_ctx->skb = skb;
1703                         np->put_rx_ctx->dma = pci_map_single(np->pci_dev,
1704                                                              skb->data,
1705                                                              skb_tailroom(skb),
1706                                                              PCI_DMA_FROMDEVICE);
1707                         np->put_rx_ctx->dma_len = skb_tailroom(skb);
1708                         np->put_rx.orig->buf = cpu_to_le32(np->put_rx_ctx->dma);
1709                         wmb();
1710                         np->put_rx.orig->flaglen = cpu_to_le32(np->rx_buf_sz | NV_RX_AVAIL);
1711                         if (unlikely(np->put_rx.orig++ == np->last_rx.orig))
1712                                 np->put_rx.orig = np->first_rx.orig;
1713                         if (unlikely(np->put_rx_ctx++ == np->last_rx_ctx))
1714                                 np->put_rx_ctx = np->first_rx_ctx;
1715                 } else {
1716                         return 1;
1717                 }
1718         }
1719         return 0;
1720 }
1721
1722 static int nv_alloc_rx_optimized(struct net_device *dev)
1723 {
1724         struct fe_priv *np = netdev_priv(dev);
1725         struct ring_desc_ex* less_rx;
1726
1727         less_rx = np->get_rx.ex;
1728         if (less_rx-- == np->first_rx.ex)
1729                 less_rx = np->last_rx.ex;
1730
1731         while (np->put_rx.ex != less_rx) {
1732                 struct sk_buff *skb = dev_alloc_skb(np->rx_buf_sz + NV_RX_ALLOC_PAD);
1733                 if (skb) {
1734                         np->put_rx_ctx->skb = skb;
1735                         np->put_rx_ctx->dma = pci_map_single(np->pci_dev,
1736                                                              skb->data,
1737                                                              skb_tailroom(skb),
1738                                                              PCI_DMA_FROMDEVICE);
1739                         np->put_rx_ctx->dma_len = skb_tailroom(skb);
1740                         np->put_rx.ex->bufhigh = cpu_to_le32(dma_high(np->put_rx_ctx->dma));
1741                         np->put_rx.ex->buflow = cpu_to_le32(dma_low(np->put_rx_ctx->dma));
1742                         wmb();
1743                         np->put_rx.ex->flaglen = cpu_to_le32(np->rx_buf_sz | NV_RX2_AVAIL);
1744                         if (unlikely(np->put_rx.ex++ == np->last_rx.ex))
1745                                 np->put_rx.ex = np->first_rx.ex;
1746                         if (unlikely(np->put_rx_ctx++ == np->last_rx_ctx))
1747                                 np->put_rx_ctx = np->first_rx_ctx;
1748                 } else {
1749                         return 1;
1750                 }
1751         }
1752         return 0;
1753 }
1754
1755 /* If rx bufs are exhausted called after 50ms to attempt to refresh */
1756 #ifdef CONFIG_FORCEDETH_NAPI
1757 static void nv_do_rx_refill(unsigned long data)
1758 {
1759         struct net_device *dev = (struct net_device *) data;
1760         struct fe_priv *np = netdev_priv(dev);
1761
1762         /* Just reschedule NAPI rx processing */
1763         netif_rx_schedule(&np->napi);
1764 }
1765 #else
1766 static void nv_do_rx_refill(unsigned long data)
1767 {
1768         struct net_device *dev = (struct net_device *) data;
1769         struct fe_priv *np = netdev_priv(dev);
1770         int retcode;
1771
1772         if (!using_multi_irqs(dev)) {
1773                 if (np->msi_flags & NV_MSI_X_ENABLED)
1774                         disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector);
1775                 else
1776                         disable_irq(np->pci_dev->irq);
1777         } else {
1778                 disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector);
1779         }
1780         if (!nv_optimized(np))
1781                 retcode = nv_alloc_rx(dev);
1782         else
1783                 retcode = nv_alloc_rx_optimized(dev);
1784         if (retcode) {
1785                 spin_lock_irq(&np->lock);
1786                 if (!np->in_shutdown)
1787                         mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
1788                 spin_unlock_irq(&np->lock);
1789         }
1790         if (!using_multi_irqs(dev)) {
1791                 if (np->msi_flags & NV_MSI_X_ENABLED)
1792                         enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector);
1793                 else
1794                         enable_irq(np->pci_dev->irq);
1795         } else {
1796                 enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector);
1797         }
1798 }
1799 #endif
1800
1801 static void nv_init_rx(struct net_device *dev)
1802 {
1803         struct fe_priv *np = netdev_priv(dev);
1804         int i;
1805
1806         np->get_rx = np->put_rx = np->first_rx = np->rx_ring;
1807
1808         if (!nv_optimized(np))
1809                 np->last_rx.orig = &np->rx_ring.orig[np->rx_ring_size-1];
1810         else
1811                 np->last_rx.ex = &np->rx_ring.ex[np->rx_ring_size-1];
1812         np->get_rx_ctx = np->put_rx_ctx = np->first_rx_ctx = np->rx_skb;
1813         np->last_rx_ctx = &np->rx_skb[np->rx_ring_size-1];
1814
1815         for (i = 0; i < np->rx_ring_size; i++) {
1816                 if (!nv_optimized(np)) {
1817                         np->rx_ring.orig[i].flaglen = 0;
1818                         np->rx_ring.orig[i].buf = 0;
1819                 } else {
1820                         np->rx_ring.ex[i].flaglen = 0;
1821                         np->rx_ring.ex[i].txvlan = 0;
1822                         np->rx_ring.ex[i].bufhigh = 0;
1823                         np->rx_ring.ex[i].buflow = 0;
1824                 }
1825                 np->rx_skb[i].skb = NULL;
1826                 np->rx_skb[i].dma = 0;
1827         }
1828 }
1829
1830 static void nv_init_tx(struct net_device *dev)
1831 {
1832         struct fe_priv *np = netdev_priv(dev);
1833         int i;
1834
1835         np->get_tx = np->put_tx = np->first_tx = np->tx_ring;
1836
1837         if (!nv_optimized(np))
1838                 np->last_tx.orig = &np->tx_ring.orig[np->tx_ring_size-1];
1839         else
1840                 np->last_tx.ex = &np->tx_ring.ex[np->tx_ring_size-1];
1841         np->get_tx_ctx = np->put_tx_ctx = np->first_tx_ctx = np->tx_skb;
1842         np->last_tx_ctx = &np->tx_skb[np->tx_ring_size-1];
1843         np->tx_pkts_in_progress = 0;
1844         np->tx_change_owner = NULL;
1845         np->tx_end_flip = NULL;
1846
1847         for (i = 0; i < np->tx_ring_size; i++) {
1848                 if (!nv_optimized(np)) {
1849                         np->tx_ring.orig[i].flaglen = 0;
1850                         np->tx_ring.orig[i].buf = 0;
1851                 } else {
1852                         np->tx_ring.ex[i].flaglen = 0;
1853                         np->tx_ring.ex[i].txvlan = 0;
1854                         np->tx_ring.ex[i].bufhigh = 0;
1855                         np->tx_ring.ex[i].buflow = 0;
1856                 }
1857                 np->tx_skb[i].skb = NULL;
1858                 np->tx_skb[i].dma = 0;
1859                 np->tx_skb[i].dma_len = 0;
1860                 np->tx_skb[i].first_tx_desc = NULL;
1861                 np->tx_skb[i].next_tx_ctx = NULL;
1862         }
1863 }
1864
1865 static int nv_init_ring(struct net_device *dev)
1866 {
1867         struct fe_priv *np = netdev_priv(dev);
1868
1869         nv_init_tx(dev);
1870         nv_init_rx(dev);
1871
1872         if (!nv_optimized(np))
1873                 return nv_alloc_rx(dev);
1874         else
1875                 return nv_alloc_rx_optimized(dev);
1876 }
1877
1878 static int nv_release_txskb(struct net_device *dev, struct nv_skb_map* tx_skb)
1879 {
1880         struct fe_priv *np = netdev_priv(dev);
1881
1882         if (tx_skb->dma) {
1883                 pci_unmap_page(np->pci_dev, tx_skb->dma,
1884                                tx_skb->dma_len,
1885                                PCI_DMA_TODEVICE);
1886                 tx_skb->dma = 0;
1887         }
1888         if (tx_skb->skb) {
1889                 dev_kfree_skb_any(tx_skb->skb);
1890                 tx_skb->skb = NULL;
1891                 return 1;
1892         } else {
1893                 return 0;
1894         }
1895 }
1896
1897 static void nv_drain_tx(struct net_device *dev)
1898 {
1899         struct fe_priv *np = netdev_priv(dev);
1900         unsigned int i;
1901
1902         for (i = 0; i < np->tx_ring_size; i++) {
1903                 if (!nv_optimized(np)) {
1904                         np->tx_ring.orig[i].flaglen = 0;
1905                         np->tx_ring.orig[i].buf = 0;
1906                 } else {
1907                         np->tx_ring.ex[i].flaglen = 0;
1908                         np->tx_ring.ex[i].txvlan = 0;
1909                         np->tx_ring.ex[i].bufhigh = 0;
1910                         np->tx_ring.ex[i].buflow = 0;
1911                 }
1912                 if (nv_release_txskb(dev, &np->tx_skb[i]))
1913                         dev->stats.tx_dropped++;
1914                 np->tx_skb[i].dma = 0;
1915                 np->tx_skb[i].dma_len = 0;
1916                 np->tx_skb[i].first_tx_desc = NULL;
1917                 np->tx_skb[i].next_tx_ctx = NULL;
1918         }
1919         np->tx_pkts_in_progress = 0;
1920         np->tx_change_owner = NULL;
1921         np->tx_end_flip = NULL;
1922 }
1923
1924 static void nv_drain_rx(struct net_device *dev)
1925 {
1926         struct fe_priv *np = netdev_priv(dev);
1927         int i;
1928
1929         for (i = 0; i < np->rx_ring_size; i++) {
1930                 if (!nv_optimized(np)) {
1931                         np->rx_ring.orig[i].flaglen = 0;
1932                         np->rx_ring.orig[i].buf = 0;
1933                 } else {
1934                         np->rx_ring.ex[i].flaglen = 0;
1935                         np->rx_ring.ex[i].txvlan = 0;
1936                         np->rx_ring.ex[i].bufhigh = 0;
1937                         np->rx_ring.ex[i].buflow = 0;
1938                 }
1939                 wmb();
1940                 if (np->rx_skb[i].skb) {
1941                         pci_unmap_single(np->pci_dev, np->rx_skb[i].dma,
1942                                          (skb_end_pointer(np->rx_skb[i].skb) -
1943                                           np->rx_skb[i].skb->data),
1944                                          PCI_DMA_FROMDEVICE);
1945                         dev_kfree_skb(np->rx_skb[i].skb);
1946                         np->rx_skb[i].skb = NULL;
1947                 }
1948         }
1949 }
1950
1951 static void nv_drain_rxtx(struct net_device *dev)
1952 {
1953         nv_drain_tx(dev);
1954         nv_drain_rx(dev);
1955 }
1956
1957 static inline u32 nv_get_empty_tx_slots(struct fe_priv *np)
1958 {
1959         return (u32)(np->tx_ring_size - ((np->tx_ring_size + (np->put_tx_ctx - np->get_tx_ctx)) % np->tx_ring_size));
1960 }
1961
1962 static void nv_legacybackoff_reseed(struct net_device *dev)
1963 {
1964         u8 __iomem *base = get_hwbase(dev);
1965         u32 reg;
1966         u32 low;
1967         int tx_status = 0;
1968
1969         reg = readl(base + NvRegSlotTime) & ~NVREG_SLOTTIME_MASK;
1970         get_random_bytes(&low, sizeof(low));
1971         reg |= low & NVREG_SLOTTIME_MASK;
1972
1973         /* Need to stop tx before change takes effect.
1974          * Caller has already gained np->lock.
1975          */
1976         tx_status = readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_START;
1977         if (tx_status)
1978                 nv_stop_tx(dev);
1979         nv_stop_rx(dev);
1980         writel(reg, base + NvRegSlotTime);
1981         if (tx_status)
1982                 nv_start_tx(dev);
1983         nv_start_rx(dev);
1984 }
1985
1986 /* Gear Backoff Seeds */
1987 #define BACKOFF_SEEDSET_ROWS    8
1988 #define BACKOFF_SEEDSET_LFSRS   15
1989
1990 /* Known Good seed sets */
1991 static const u32 main_seedset[BACKOFF_SEEDSET_ROWS][BACKOFF_SEEDSET_LFSRS] = {
1992     {145, 155, 165, 175, 185, 196, 235, 245, 255, 265, 275, 285, 660, 690, 874},
1993     {245, 255, 265, 575, 385, 298, 335, 345, 355, 366, 375, 385, 761, 790, 974},
1994     {145, 155, 165, 175, 185, 196, 235, 245, 255, 265, 275, 285, 660, 690, 874},
1995     {245, 255, 265, 575, 385, 298, 335, 345, 355, 366, 375, 386, 761, 790, 974},
1996     {266, 265, 276, 585, 397, 208, 345, 355, 365, 376, 385, 396, 771, 700, 984},
1997     {266, 265, 276, 586, 397, 208, 346, 355, 365, 376, 285, 396, 771, 700, 984},
1998     {366, 365, 376, 686, 497, 308, 447, 455, 466, 476, 485, 496, 871, 800,  84},
1999     {466, 465, 476, 786, 597, 408, 547, 555, 566, 576, 585, 597, 971, 900, 184}};
2000
2001 static const u32 gear_seedset[BACKOFF_SEEDSET_ROWS][BACKOFF_SEEDSET_LFSRS] = {
2002     {251, 262, 273, 324, 319, 508, 375, 364, 341, 371, 398, 193, 375,  30, 295},
2003     {351, 375, 373, 469, 551, 639, 477, 464, 441, 472, 498, 293, 476, 130, 395},
2004     {351, 375, 373, 469, 551, 639, 477, 464, 441, 472, 498, 293, 476, 130, 397},
2005     {251, 262, 273, 324, 319, 508, 375, 364, 341, 371, 398, 193, 375,  30, 295},
2006     {251, 262, 273, 324, 319, 508, 375, 364, 341, 371, 398, 193, 375,  30, 295},
2007     {351, 375, 373, 469, 551, 639, 477, 464, 441, 472, 498, 293, 476, 130, 395},
2008     {351, 375, 373, 469, 551, 639, 477, 464, 441, 472, 498, 293, 476, 130, 395},
2009     {351, 375, 373, 469, 551, 639, 477, 464, 441, 472, 498, 293, 476, 130, 395}};
2010
2011 static void nv_gear_backoff_reseed(struct net_device *dev)
2012 {
2013         u8 __iomem *base = get_hwbase(dev);
2014         u32 miniseed1, miniseed2, miniseed2_reversed, miniseed3, miniseed3_reversed;
2015         u32 temp, seedset, combinedSeed;
2016         int i;
2017
2018         /* Setup seed for free running LFSR */
2019         /* We are going to read the time stamp counter 3 times
2020            and swizzle bits around to increase randomness */
2021         get_random_bytes(&miniseed1, sizeof(miniseed1));
2022         miniseed1 &= 0x0fff;
2023         if (miniseed1 == 0)
2024                 miniseed1 = 0xabc;
2025
2026         get_random_bytes(&miniseed2, sizeof(miniseed2));
2027         miniseed2 &= 0x0fff;
2028         if (miniseed2 == 0)
2029                 miniseed2 = 0xabc;
2030         miniseed2_reversed =
2031                 ((miniseed2 & 0xF00) >> 8) |
2032                  (miniseed2 & 0x0F0) |
2033                  ((miniseed2 & 0x00F) << 8);
2034
2035         get_random_bytes(&miniseed3, sizeof(miniseed3));
2036         miniseed3 &= 0x0fff;
2037         if (miniseed3 == 0)
2038                 miniseed3 = 0xabc;
2039         miniseed3_reversed =
2040                 ((miniseed3 & 0xF00) >> 8) |
2041                  (miniseed3 & 0x0F0) |
2042                  ((miniseed3 & 0x00F) << 8);
2043
2044         combinedSeed = ((miniseed1 ^ miniseed2_reversed) << 12) |
2045                        (miniseed2 ^ miniseed3_reversed);
2046
2047         /* Seeds can not be zero */
2048         if ((combinedSeed & NVREG_BKOFFCTRL_SEED_MASK) == 0)
2049                 combinedSeed |= 0x08;
2050         if ((combinedSeed & (NVREG_BKOFFCTRL_SEED_MASK << NVREG_BKOFFCTRL_GEAR)) == 0)
2051                 combinedSeed |= 0x8000;
2052
2053         /* No need to disable tx here */
2054         temp = NVREG_BKOFFCTRL_DEFAULT | (0 << NVREG_BKOFFCTRL_SELECT);
2055         temp |= combinedSeed & NVREG_BKOFFCTRL_SEED_MASK;
2056         temp |= combinedSeed >> NVREG_BKOFFCTRL_GEAR;
2057         writel(temp,base + NvRegBackOffControl);
2058
2059         /* Setup seeds for all gear LFSRs. */
2060         get_random_bytes(&seedset, sizeof(seedset));
2061         seedset = seedset % BACKOFF_SEEDSET_ROWS;
2062         for (i = 1; i <= BACKOFF_SEEDSET_LFSRS; i++)
2063         {
2064                 temp = NVREG_BKOFFCTRL_DEFAULT | (i << NVREG_BKOFFCTRL_SELECT);
2065                 temp |= main_seedset[seedset][i-1] & 0x3ff;
2066                 temp |= ((gear_seedset[seedset][i-1] & 0x3ff) << NVREG_BKOFFCTRL_GEAR);
2067                 writel(temp, base + NvRegBackOffControl);
2068         }
2069 }
2070
2071 /*
2072  * nv_start_xmit: dev->hard_start_xmit function
2073  * Called with netif_tx_lock held.
2074  */
2075 static int nv_start_xmit(struct sk_buff *skb, struct net_device *dev)
2076 {
2077         struct fe_priv *np = netdev_priv(dev);
2078         u32 tx_flags = 0;
2079         u32 tx_flags_extra = (np->desc_ver == DESC_VER_1 ? NV_TX_LASTPACKET : NV_TX2_LASTPACKET);
2080         unsigned int fragments = skb_shinfo(skb)->nr_frags;
2081         unsigned int i;
2082         u32 offset = 0;
2083         u32 bcnt;
2084         u32 size = skb->len-skb->data_len;
2085         u32 entries = (size >> NV_TX2_TSO_MAX_SHIFT) + ((size & (NV_TX2_TSO_MAX_SIZE-1)) ? 1 : 0);
2086         u32 empty_slots;
2087         struct ring_desc* put_tx;
2088         struct ring_desc* start_tx;
2089         struct ring_desc* prev_tx;
2090         struct nv_skb_map* prev_tx_ctx;
2091         unsigned long flags;
2092
2093         /* add fragments to entries count */
2094         for (i = 0; i < fragments; i++) {
2095                 entries += (skb_shinfo(skb)->frags[i].size >> NV_TX2_TSO_MAX_SHIFT) +
2096                            ((skb_shinfo(skb)->frags[i].size & (NV_TX2_TSO_MAX_SIZE-1)) ? 1 : 0);
2097         }
2098
2099         spin_lock_irqsave(&np->lock, flags);
2100         empty_slots = nv_get_empty_tx_slots(np);
2101         if (unlikely(empty_slots <= entries)) {
2102                 netif_stop_queue(dev);
2103                 np->tx_stop = 1;
2104                 spin_unlock_irqrestore(&np->lock, flags);
2105                 return NETDEV_TX_BUSY;
2106         }
2107         spin_unlock_irqrestore(&np->lock, flags);
2108
2109         start_tx = put_tx = np->put_tx.orig;
2110
2111         /* setup the header buffer */
2112         do {
2113                 prev_tx = put_tx;
2114                 prev_tx_ctx = np->put_tx_ctx;
2115                 bcnt = (size > NV_TX2_TSO_MAX_SIZE) ? NV_TX2_TSO_MAX_SIZE : size;
2116                 np->put_tx_ctx->dma = pci_map_single(np->pci_dev, skb->data + offset, bcnt,
2117                                                 PCI_DMA_TODEVICE);
2118                 np->put_tx_ctx->dma_len = bcnt;
2119                 put_tx->buf = cpu_to_le32(np->put_tx_ctx->dma);
2120                 put_tx->flaglen = cpu_to_le32((bcnt-1) | tx_flags);
2121
2122                 tx_flags = np->tx_flags;
2123                 offset += bcnt;
2124                 size -= bcnt;
2125                 if (unlikely(put_tx++ == np->last_tx.orig))
2126                         put_tx = np->first_tx.orig;
2127                 if (unlikely(np->put_tx_ctx++ == np->last_tx_ctx))
2128                         np->put_tx_ctx = np->first_tx_ctx;
2129         } while (size);
2130
2131         /* setup the fragments */
2132         for (i = 0; i < fragments; i++) {
2133                 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
2134                 u32 size = frag->size;
2135                 offset = 0;
2136
2137                 do {
2138                         prev_tx = put_tx;
2139                         prev_tx_ctx = np->put_tx_ctx;
2140                         bcnt = (size > NV_TX2_TSO_MAX_SIZE) ? NV_TX2_TSO_MAX_SIZE : size;
2141                         np->put_tx_ctx->dma = pci_map_page(np->pci_dev, frag->page, frag->page_offset+offset, bcnt,
2142                                                            PCI_DMA_TODEVICE);
2143                         np->put_tx_ctx->dma_len = bcnt;
2144                         put_tx->buf = cpu_to_le32(np->put_tx_ctx->dma);
2145                         put_tx->flaglen = cpu_to_le32((bcnt-1) | tx_flags);
2146
2147                         offset += bcnt;
2148                         size -= bcnt;
2149                         if (unlikely(put_tx++ == np->last_tx.orig))
2150                                 put_tx = np->first_tx.orig;
2151                         if (unlikely(np->put_tx_ctx++ == np->last_tx_ctx))
2152                                 np->put_tx_ctx = np->first_tx_ctx;
2153                 } while (size);
2154         }
2155
2156         /* set last fragment flag  */
2157         prev_tx->flaglen |= cpu_to_le32(tx_flags_extra);
2158
2159         /* save skb in this slot's context area */
2160         prev_tx_ctx->skb = skb;
2161
2162         if (skb_is_gso(skb))
2163                 tx_flags_extra = NV_TX2_TSO | (skb_shinfo(skb)->gso_size << NV_TX2_TSO_SHIFT);
2164         else
2165                 tx_flags_extra = skb->ip_summed == CHECKSUM_PARTIAL ?
2166                          NV_TX2_CHECKSUM_L3 | NV_TX2_CHECKSUM_L4 : 0;
2167
2168         spin_lock_irqsave(&np->lock, flags);
2169
2170         /* set tx flags */
2171         start_tx->flaglen |= cpu_to_le32(tx_flags | tx_flags_extra);
2172         np->put_tx.orig = put_tx;
2173
2174         spin_unlock_irqrestore(&np->lock, flags);
2175
2176         dprintk(KERN_DEBUG "%s: nv_start_xmit: entries %d queued for transmission. tx_flags_extra: %x\n",
2177                 dev->name, entries, tx_flags_extra);
2178         {
2179                 int j;
2180                 for (j=0; j<64; j++) {
2181                         if ((j%16) == 0)
2182                                 dprintk("\n%03x:", j);
2183                         dprintk(" %02x", ((unsigned char*)skb->data)[j]);
2184                 }
2185                 dprintk("\n");
2186         }
2187
2188         dev->trans_start = jiffies;
2189         writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
2190         return NETDEV_TX_OK;
2191 }
2192
2193 static int nv_start_xmit_optimized(struct sk_buff *skb, struct net_device *dev)
2194 {
2195         struct fe_priv *np = netdev_priv(dev);
2196         u32 tx_flags = 0;
2197         u32 tx_flags_extra;
2198         unsigned int fragments = skb_shinfo(skb)->nr_frags;
2199         unsigned int i;
2200         u32 offset = 0;
2201         u32 bcnt;
2202         u32 size = skb->len-skb->data_len;
2203         u32 entries = (size >> NV_TX2_TSO_MAX_SHIFT) + ((size & (NV_TX2_TSO_MAX_SIZE-1)) ? 1 : 0);
2204         u32 empty_slots;
2205         struct ring_desc_ex* put_tx;
2206         struct ring_desc_ex* start_tx;
2207         struct ring_desc_ex* prev_tx;
2208         struct nv_skb_map* prev_tx_ctx;
2209         struct nv_skb_map* start_tx_ctx;
2210         unsigned long flags;
2211
2212         /* add fragments to entries count */
2213         for (i = 0; i < fragments; i++) {
2214                 entries += (skb_shinfo(skb)->frags[i].size >> NV_TX2_TSO_MAX_SHIFT) +
2215                            ((skb_shinfo(skb)->frags[i].size & (NV_TX2_TSO_MAX_SIZE-1)) ? 1 : 0);
2216         }
2217
2218         spin_lock_irqsave(&np->lock, flags);
2219         empty_slots = nv_get_empty_tx_slots(np);
2220         if (unlikely(empty_slots <= entries)) {
2221                 netif_stop_queue(dev);
2222                 np->tx_stop = 1;
2223                 spin_unlock_irqrestore(&np->lock, flags);
2224                 return NETDEV_TX_BUSY;
2225         }
2226         spin_unlock_irqrestore(&np->lock, flags);
2227
2228         start_tx = put_tx = np->put_tx.ex;
2229         start_tx_ctx = np->put_tx_ctx;
2230
2231         /* setup the header buffer */
2232         do {
2233                 prev_tx = put_tx;
2234                 prev_tx_ctx = np->put_tx_ctx;
2235                 bcnt = (size > NV_TX2_TSO_MAX_SIZE) ? NV_TX2_TSO_MAX_SIZE : size;
2236                 np->put_tx_ctx->dma = pci_map_single(np->pci_dev, skb->data + offset, bcnt,
2237                                                 PCI_DMA_TODEVICE);
2238                 np->put_tx_ctx->dma_len = bcnt;
2239                 put_tx->bufhigh = cpu_to_le32(dma_high(np->put_tx_ctx->dma));
2240                 put_tx->buflow = cpu_to_le32(dma_low(np->put_tx_ctx->dma));
2241                 put_tx->flaglen = cpu_to_le32((bcnt-1) | tx_flags);
2242
2243                 tx_flags = NV_TX2_VALID;
2244                 offset += bcnt;
2245                 size -= bcnt;
2246                 if (unlikely(put_tx++ == np->last_tx.ex))
2247                         put_tx = np->first_tx.ex;
2248                 if (unlikely(np->put_tx_ctx++ == np->last_tx_ctx))
2249                         np->put_tx_ctx = np->first_tx_ctx;
2250         } while (size);
2251
2252         /* setup the fragments */
2253         for (i = 0; i < fragments; i++) {
2254                 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
2255                 u32 size = frag->size;
2256                 offset = 0;
2257
2258                 do {
2259                         prev_tx = put_tx;
2260                         prev_tx_ctx = np->put_tx_ctx;
2261                         bcnt = (size > NV_TX2_TSO_MAX_SIZE) ? NV_TX2_TSO_MAX_SIZE : size;
2262                         np->put_tx_ctx->dma = pci_map_page(np->pci_dev, frag->page, frag->page_offset+offset, bcnt,
2263                                                            PCI_DMA_TODEVICE);
2264                         np->put_tx_ctx->dma_len = bcnt;
2265                         put_tx->bufhigh = cpu_to_le32(dma_high(np->put_tx_ctx->dma));
2266                         put_tx->buflow = cpu_to_le32(dma_low(np->put_tx_ctx->dma));
2267                         put_tx->flaglen = cpu_to_le32((bcnt-1) | tx_flags);
2268
2269                         offset += bcnt;
2270                         size -= bcnt;
2271                         if (unlikely(put_tx++ == np->last_tx.ex))
2272                                 put_tx = np->first_tx.ex;
2273                         if (unlikely(np->put_tx_ctx++ == np->last_tx_ctx))
2274                                 np->put_tx_ctx = np->first_tx_ctx;
2275                 } while (size);
2276         }
2277
2278         /* set last fragment flag  */
2279         prev_tx->flaglen |= cpu_to_le32(NV_TX2_LASTPACKET);
2280
2281         /* save skb in this slot's context area */
2282         prev_tx_ctx->skb = skb;
2283
2284         if (skb_is_gso(skb))
2285                 tx_flags_extra = NV_TX2_TSO | (skb_shinfo(skb)->gso_size << NV_TX2_TSO_SHIFT);
2286         else
2287                 tx_flags_extra = skb->ip_summed == CHECKSUM_PARTIAL ?
2288                          NV_TX2_CHECKSUM_L3 | NV_TX2_CHECKSUM_L4 : 0;
2289
2290         /* vlan tag */
2291         if (likely(!np->vlangrp)) {
2292                 start_tx->txvlan = 0;
2293         } else {
2294                 if (vlan_tx_tag_present(skb))
2295                         start_tx->txvlan = cpu_to_le32(NV_TX3_VLAN_TAG_PRESENT | vlan_tx_tag_get(skb));
2296                 else
2297                         start_tx->txvlan = 0;
2298         }
2299
2300         spin_lock_irqsave(&np->lock, flags);
2301
2302         if (np->tx_limit) {
2303                 /* Limit the number of outstanding tx. Setup all fragments, but
2304                  * do not set the VALID bit on the first descriptor. Save a pointer
2305                  * to that descriptor and also for next skb_map element.
2306                  */
2307
2308                 if (np->tx_pkts_in_progress == NV_TX_LIMIT_COUNT) {
2309                         if (!np->tx_change_owner)
2310                                 np->tx_change_owner = start_tx_ctx;
2311
2312                         /* remove VALID bit */
2313                         tx_flags &= ~NV_TX2_VALID;
2314                         start_tx_ctx->first_tx_desc = start_tx;
2315                         start_tx_ctx->next_tx_ctx = np->put_tx_ctx;
2316                         np->tx_end_flip = np->put_tx_ctx;
2317                 } else {
2318                         np->tx_pkts_in_progress++;
2319                 }
2320         }
2321
2322         /* set tx flags */
2323         start_tx->flaglen |= cpu_to_le32(tx_flags | tx_flags_extra);
2324         np->put_tx.ex = put_tx;
2325
2326         spin_unlock_irqrestore(&np->lock, flags);
2327
2328         dprintk(KERN_DEBUG "%s: nv_start_xmit_optimized: entries %d queued for transmission. tx_flags_extra: %x\n",
2329                 dev->name, entries, tx_flags_extra);
2330         {
2331                 int j;
2332                 for (j=0; j<64; j++) {
2333                         if ((j%16) == 0)
2334                                 dprintk("\n%03x:", j);
2335                         dprintk(" %02x", ((unsigned char*)skb->data)[j]);
2336                 }
2337                 dprintk("\n");
2338         }
2339
2340         dev->trans_start = jiffies;
2341         writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
2342         return NETDEV_TX_OK;
2343 }
2344
2345 static inline void nv_tx_flip_ownership(struct net_device *dev)
2346 {
2347         struct fe_priv *np = netdev_priv(dev);
2348
2349         np->tx_pkts_in_progress--;
2350         if (np->tx_change_owner) {
2351                 np->tx_change_owner->first_tx_desc->flaglen |=
2352                         cpu_to_le32(NV_TX2_VALID);
2353                 np->tx_pkts_in_progress++;
2354
2355                 np->tx_change_owner = np->tx_change_owner->next_tx_ctx;
2356                 if (np->tx_change_owner == np->tx_end_flip)
2357                         np->tx_change_owner = NULL;
2358
2359                 writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
2360         }
2361 }
2362
2363 /*
2364  * nv_tx_done: check for completed packets, release the skbs.
2365  *
2366  * Caller must own np->lock.
2367  */
2368 static void nv_tx_done(struct net_device *dev)
2369 {
2370         struct fe_priv *np = netdev_priv(dev);
2371         u32 flags;
2372         struct ring_desc* orig_get_tx = np->get_tx.orig;
2373
2374         while ((np->get_tx.orig != np->put_tx.orig) &&
2375                !((flags = le32_to_cpu(np->get_tx.orig->flaglen)) & NV_TX_VALID)) {
2376
2377                 dprintk(KERN_DEBUG "%s: nv_tx_done: flags 0x%x.\n",
2378                                         dev->name, flags);
2379
2380                 pci_unmap_page(np->pci_dev, np->get_tx_ctx->dma,
2381                                np->get_tx_ctx->dma_len,
2382                                PCI_DMA_TODEVICE);
2383                 np->get_tx_ctx->dma = 0;
2384
2385                 if (np->desc_ver == DESC_VER_1) {
2386                         if (flags & NV_TX_LASTPACKET) {
2387                                 if (flags & NV_TX_ERROR) {
2388                                         if (flags & NV_TX_UNDERFLOW)
2389                                                 dev->stats.tx_fifo_errors++;
2390                                         if (flags & NV_TX_CARRIERLOST)
2391                                                 dev->stats.tx_carrier_errors++;
2392                                         if ((flags & NV_TX_RETRYERROR) && !(flags & NV_TX_RETRYCOUNT_MASK))
2393                                                 nv_legacybackoff_reseed(dev);
2394                                         dev->stats.tx_errors++;
2395                                 } else {
2396                                         dev->stats.tx_packets++;
2397                                         dev->stats.tx_bytes += np->get_tx_ctx->skb->len;
2398                                 }
2399                                 dev_kfree_skb_any(np->get_tx_ctx->skb);
2400                                 np->get_tx_ctx->skb = NULL;
2401                         }
2402                 } else {
2403                         if (flags & NV_TX2_LASTPACKET) {
2404                                 if (flags & NV_TX2_ERROR) {
2405                                         if (flags & NV_TX2_UNDERFLOW)
2406                                                 dev->stats.tx_fifo_errors++;
2407                                         if (flags & NV_TX2_CARRIERLOST)
2408                                                 dev->stats.tx_carrier_errors++;
2409                                         if ((flags & NV_TX2_RETRYERROR) && !(flags & NV_TX2_RETRYCOUNT_MASK))
2410                                                 nv_legacybackoff_reseed(dev);
2411                                         dev->stats.tx_errors++;
2412                                 } else {
2413                                         dev->stats.tx_packets++;
2414                                         dev->stats.tx_bytes += np->get_tx_ctx->skb->len;
2415                                 }
2416                                 dev_kfree_skb_any(np->get_tx_ctx->skb);
2417                                 np->get_tx_ctx->skb = NULL;
2418                         }
2419                 }
2420                 if (unlikely(np->get_tx.orig++ == np->last_tx.orig))
2421                         np->get_tx.orig = np->first_tx.orig;
2422                 if (unlikely(np->get_tx_ctx++ == np->last_tx_ctx))
2423                         np->get_tx_ctx = np->first_tx_ctx;
2424         }
2425         if (unlikely((np->tx_stop == 1) && (np->get_tx.orig != orig_get_tx))) {
2426                 np->tx_stop = 0;
2427                 netif_wake_queue(dev);
2428         }
2429 }
2430
2431 static void nv_tx_done_optimized(struct net_device *dev, int limit)
2432 {
2433         struct fe_priv *np = netdev_priv(dev);
2434         u32 flags;
2435         struct ring_desc_ex* orig_get_tx = np->get_tx.ex;
2436
2437         while ((np->get_tx.ex != np->put_tx.ex) &&
2438                !((flags = le32_to_cpu(np->get_tx.ex->flaglen)) & NV_TX_VALID) &&
2439                (limit-- > 0)) {
2440
2441                 dprintk(KERN_DEBUG "%s: nv_tx_done_optimized: flags 0x%x.\n",
2442                                         dev->name, flags);
2443
2444                 pci_unmap_page(np->pci_dev, np->get_tx_ctx->dma,
2445                                np->get_tx_ctx->dma_len,
2446                                PCI_DMA_TODEVICE);
2447                 np->get_tx_ctx->dma = 0;
2448
2449                 if (flags & NV_TX2_LASTPACKET) {
2450                         if (!(flags & NV_TX2_ERROR))
2451                                 dev->stats.tx_packets++;
2452                         else {
2453                                 if ((flags & NV_TX2_RETRYERROR) && !(flags & NV_TX2_RETRYCOUNT_MASK)) {
2454                                         if (np->driver_data & DEV_HAS_GEAR_MODE)
2455                                                 nv_gear_backoff_reseed(dev);
2456                                         else
2457                                                 nv_legacybackoff_reseed(dev);
2458                                 }
2459                         }
2460
2461                         dev_kfree_skb_any(np->get_tx_ctx->skb);
2462                         np->get_tx_ctx->skb = NULL;
2463
2464                         if (np->tx_limit) {
2465                                 nv_tx_flip_ownership(dev);
2466                         }
2467                 }
2468                 if (unlikely(np->get_tx.ex++ == np->last_tx.ex))
2469                         np->get_tx.ex = np->first_tx.ex;
2470                 if (unlikely(np->get_tx_ctx++ == np->last_tx_ctx))
2471                         np->get_tx_ctx = np->first_tx_ctx;
2472         }
2473         if (unlikely((np->tx_stop == 1) && (np->get_tx.ex != orig_get_tx))) {
2474                 np->tx_stop = 0;
2475                 netif_wake_queue(dev);
2476         }
2477 }
2478
2479 /*
2480  * nv_tx_timeout: dev->tx_timeout function
2481  * Called with netif_tx_lock held.
2482  */
2483 static void nv_tx_timeout(struct net_device *dev)
2484 {
2485         struct fe_priv *np = netdev_priv(dev);
2486         u8 __iomem *base = get_hwbase(dev);
2487         u32 status;
2488
2489         if (np->msi_flags & NV_MSI_X_ENABLED)
2490                 status = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQSTAT_MASK;
2491         else
2492                 status = readl(base + NvRegIrqStatus) & NVREG_IRQSTAT_MASK;
2493
2494         printk(KERN_INFO "%s: Got tx_timeout. irq: %08x\n", dev->name, status);
2495
2496         {
2497                 int i;
2498
2499                 printk(KERN_INFO "%s: Ring at %lx\n",
2500                        dev->name, (unsigned long)np->ring_addr);
2501                 printk(KERN_INFO "%s: Dumping tx registers\n", dev->name);
2502                 for (i=0;i<=np->register_size;i+= 32) {
2503                         printk(KERN_INFO "%3x: %08x %08x %08x %08x %08x %08x %08x %08x\n",
2504                                         i,
2505                                         readl(base + i + 0), readl(base + i + 4),
2506                                         readl(base + i + 8), readl(base + i + 12),
2507                                         readl(base + i + 16), readl(base + i + 20),
2508                                         readl(base + i + 24), readl(base + i + 28));
2509                 }
2510                 printk(KERN_INFO "%s: Dumping tx ring\n", dev->name);
2511                 for (i=0;i<np->tx_ring_size;i+= 4) {
2512                         if (!nv_optimized(np)) {
2513                                 printk(KERN_INFO "%03x: %08x %08x // %08x %08x // %08x %08x // %08x %08x\n",
2514                                        i,
2515                                        le32_to_cpu(np->tx_ring.orig[i].buf),
2516                                        le32_to_cpu(np->tx_ring.orig[i].flaglen),
2517                                        le32_to_cpu(np->tx_ring.orig[i+1].buf),
2518                                        le32_to_cpu(np->tx_ring.orig[i+1].flaglen),
2519                                        le32_to_cpu(np->tx_ring.orig[i+2].buf),
2520                                        le32_to_cpu(np->tx_ring.orig[i+2].flaglen),
2521                                        le32_to_cpu(np->tx_ring.orig[i+3].buf),
2522                                        le32_to_cpu(np->tx_ring.orig[i+3].flaglen));
2523                         } else {
2524                                 printk(KERN_INFO "%03x: %08x %08x %08x // %08x %08x %08x // %08x %08x %08x // %08x %08x %08x\n",
2525                                        i,
2526                                        le32_to_cpu(np->tx_ring.ex[i].bufhigh),
2527                                        le32_to_cpu(np->tx_ring.ex[i].buflow),
2528                                        le32_to_cpu(np->tx_ring.ex[i].flaglen),
2529                                        le32_to_cpu(np->tx_ring.ex[i+1].bufhigh),
2530                                        le32_to_cpu(np->tx_ring.ex[i+1].buflow),
2531                                        le32_to_cpu(np->tx_ring.ex[i+1].flaglen),
2532                                        le32_to_cpu(np->tx_ring.ex[i+2].bufhigh),
2533                                        le32_to_cpu(np->tx_ring.ex[i+2].buflow),
2534                                        le32_to_cpu(np->tx_ring.ex[i+2].flaglen),
2535                                        le32_to_cpu(np->tx_ring.ex[i+3].bufhigh),
2536                                        le32_to_cpu(np->tx_ring.ex[i+3].buflow),
2537                                        le32_to_cpu(np->tx_ring.ex[i+3].flaglen));
2538                         }
2539                 }
2540         }
2541
2542         spin_lock_irq(&np->lock);
2543
2544         /* 1) stop tx engine */
2545         nv_stop_tx(dev);
2546
2547         /* 2) check that the packets were not sent already: */
2548         if (!nv_optimized(np))
2549                 nv_tx_done(dev);
2550         else
2551                 nv_tx_done_optimized(dev, np->tx_ring_size);
2552
2553         /* 3) if there are dead entries: clear everything */
2554         if (np->get_tx_ctx != np->put_tx_ctx) {
2555                 printk(KERN_DEBUG "%s: tx_timeout: dead entries!\n", dev->name);
2556                 nv_drain_tx(dev);
2557                 nv_init_tx(dev);
2558                 setup_hw_rings(dev, NV_SETUP_TX_RING);
2559         }
2560
2561         netif_wake_queue(dev);
2562
2563         /* 4) restart tx engine */
2564         nv_start_tx(dev);
2565         spin_unlock_irq(&np->lock);
2566 }
2567
2568 /*
2569  * Called when the nic notices a mismatch between the actual data len on the
2570  * wire and the len indicated in the 802 header
2571  */
2572 static int nv_getlen(struct net_device *dev, void *packet, int datalen)
2573 {
2574         int hdrlen;     /* length of the 802 header */
2575         int protolen;   /* length as stored in the proto field */
2576
2577         /* 1) calculate len according to header */
2578         if ( ((struct vlan_ethhdr *)packet)->h_vlan_proto == htons(ETH_P_8021Q)) {
2579                 protolen = ntohs( ((struct vlan_ethhdr *)packet)->h_vlan_encapsulated_proto );
2580                 hdrlen = VLAN_HLEN;
2581         } else {
2582                 protolen = ntohs( ((struct ethhdr *)packet)->h_proto);
2583                 hdrlen = ETH_HLEN;
2584         }
2585         dprintk(KERN_DEBUG "%s: nv_getlen: datalen %d, protolen %d, hdrlen %d\n",
2586                                 dev->name, datalen, protolen, hdrlen);
2587         if (protolen > ETH_DATA_LEN)
2588                 return datalen; /* Value in proto field not a len, no checks possible */
2589
2590         protolen += hdrlen;
2591         /* consistency checks: */
2592         if (datalen > ETH_ZLEN) {
2593                 if (datalen >= protolen) {
2594                         /* more data on wire than in 802 header, trim of
2595                          * additional data.
2596                          */
2597                         dprintk(KERN_DEBUG "%s: nv_getlen: accepting %d bytes.\n",
2598                                         dev->name, protolen);
2599                         return protolen;
2600                 } else {
2601                         /* less data on wire than mentioned in header.
2602                          * Discard the packet.
2603                          */
2604                         dprintk(KERN_DEBUG "%s: nv_getlen: discarding long packet.\n",
2605                                         dev->name);
2606                         return -1;
2607                 }
2608         } else {
2609                 /* short packet. Accept only if 802 values are also short */
2610                 if (protolen > ETH_ZLEN) {
2611                         dprintk(KERN_DEBUG "%s: nv_getlen: discarding short packet.\n",
2612                                         dev->name);
2613                         return -1;
2614                 }
2615                 dprintk(KERN_DEBUG "%s: nv_getlen: accepting %d bytes.\n",
2616                                 dev->name, datalen);
2617                 return datalen;
2618         }
2619 }
2620
2621 static int nv_rx_process(struct net_device *dev, int limit)
2622 {
2623         struct fe_priv *np = netdev_priv(dev);
2624         u32 flags;
2625         int rx_work = 0;
2626         struct sk_buff *skb;
2627         int len;
2628
2629         while((np->get_rx.orig != np->put_rx.orig) &&
2630               !((flags = le32_to_cpu(np->get_rx.orig->flaglen)) & NV_RX_AVAIL) &&
2631                 (rx_work < limit)) {
2632
2633                 dprintk(KERN_DEBUG "%s: nv_rx_process: flags 0x%x.\n",
2634                                         dev->name, flags);
2635
2636                 /*
2637                  * the packet is for us - immediately tear down the pci mapping.
2638                  * TODO: check if a prefetch of the first cacheline improves
2639                  * the performance.
2640                  */
2641                 pci_unmap_single(np->pci_dev, np->get_rx_ctx->dma,
2642                                 np->get_rx_ctx->dma_len,
2643                                 PCI_DMA_FROMDEVICE);
2644                 skb = np->get_rx_ctx->skb;
2645                 np->get_rx_ctx->skb = NULL;
2646
2647                 {
2648                         int j;
2649                         dprintk(KERN_DEBUG "Dumping packet (flags 0x%x).",flags);
2650                         for (j=0; j<64; j++) {
2651                                 if ((j%16) == 0)
2652                                         dprintk("\n%03x:", j);
2653                                 dprintk(" %02x", ((unsigned char*)skb->data)[j]);
2654                         }
2655                         dprintk("\n");
2656                 }
2657                 /* look at what we actually got: */
2658                 if (np->desc_ver == DESC_VER_1) {
2659                         if (likely(flags & NV_RX_DESCRIPTORVALID)) {
2660                                 len = flags & LEN_MASK_V1;
2661                                 if (unlikely(flags & NV_RX_ERROR)) {
2662                                         if ((flags & NV_RX_ERROR_MASK) == NV_RX_ERROR4) {
2663                                                 len = nv_getlen(dev, skb->data, len);
2664                                                 if (len < 0) {
2665                                                         dev->stats.rx_errors++;
2666                                                         dev_kfree_skb(skb);
2667                                                         goto next_pkt;
2668                                                 }
2669                                         }
2670                                         /* framing errors are soft errors */
2671                                         else if ((flags & NV_RX_ERROR_MASK) == NV_RX_FRAMINGERR) {
2672                                                 if (flags & NV_RX_SUBSTRACT1) {
2673                                                         len--;
2674                                                 }
2675                                         }
2676                                         /* the rest are hard errors */
2677                                         else {
2678                                                 if (flags & NV_RX_MISSEDFRAME)
2679                                                         dev->stats.rx_missed_errors++;
2680                                                 if (flags & NV_RX_CRCERR)
2681                                                         dev->stats.rx_crc_errors++;
2682                                                 if (flags & NV_RX_OVERFLOW)
2683                                                         dev->stats.rx_over_errors++;
2684                                                 dev->stats.rx_errors++;
2685                                                 dev_kfree_skb(skb);
2686                                                 goto next_pkt;
2687                                         }
2688                                 }
2689                         } else {
2690                                 dev_kfree_skb(skb);
2691                                 goto next_pkt;
2692                         }
2693                 } else {
2694                         if (likely(flags & NV_RX2_DESCRIPTORVALID)) {
2695                                 len = flags & LEN_MASK_V2;
2696                                 if (unlikely(flags & NV_RX2_ERROR)) {
2697                                         if ((flags & NV_RX2_ERROR_MASK) == NV_RX2_ERROR4) {
2698                                                 len = nv_getlen(dev, skb->data, len);
2699                                                 if (len < 0) {
2700                                                         dev->stats.rx_errors++;
2701                                                         dev_kfree_skb(skb);
2702                                                         goto next_pkt;
2703                                                 }
2704                                         }
2705                                         /* framing errors are soft errors */
2706                                         else if ((flags & NV_RX2_ERROR_MASK) == NV_RX2_FRAMINGERR) {
2707                                                 if (flags & NV_RX2_SUBSTRACT1) {
2708                                                         len--;
2709                                                 }
2710                                         }
2711                                         /* the rest are hard errors */
2712                                         else {
2713                                                 if (flags & NV_RX2_CRCERR)
2714                                                         dev->stats.rx_crc_errors++;
2715                                                 if (flags & NV_RX2_OVERFLOW)
2716                                                         dev->stats.rx_over_errors++;
2717                                                 dev->stats.rx_errors++;
2718                                                 dev_kfree_skb(skb);
2719                                                 goto next_pkt;
2720                                         }
2721                                 }
2722                                 if (((flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUM_IP_TCP) || /*ip and tcp */
2723                                     ((flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUM_IP_UDP))   /*ip and udp */
2724                                         skb->ip_summed = CHECKSUM_UNNECESSARY;
2725                         } else {
2726                                 dev_kfree_skb(skb);
2727                                 goto next_pkt;
2728                         }
2729                 }
2730                 /* got a valid packet - forward it to the network core */
2731                 skb_put(skb, len);
2732                 skb->protocol = eth_type_trans(skb, dev);
2733                 dprintk(KERN_DEBUG "%s: nv_rx_process: %d bytes, proto %d accepted.\n",
2734                                         dev->name, len, skb->protocol);
2735 #ifdef CONFIG_FORCEDETH_NAPI
2736                 netif_receive_skb(skb);
2737 #else
2738                 netif_rx(skb);
2739 #endif
2740                 dev->stats.rx_packets++;
2741                 dev->stats.rx_bytes += len;
2742 next_pkt:
2743                 if (unlikely(np->get_rx.orig++ == np->last_rx.orig))
2744                         np->get_rx.orig = np->first_rx.orig;
2745                 if (unlikely(np->get_rx_ctx++ == np->last_rx_ctx))
2746                         np->get_rx_ctx = np->first_rx_ctx;
2747
2748                 rx_work++;
2749         }
2750
2751         return rx_work;
2752 }
2753
2754 static int nv_rx_process_optimized(struct net_device *dev, int limit)
2755 {
2756         struct fe_priv *np = netdev_priv(dev);
2757         u32 flags;
2758         u32 vlanflags = 0;
2759         int rx_work = 0;
2760         struct sk_buff *skb;
2761         int len;
2762
2763         while((np->get_rx.ex != np->put_rx.ex) &&
2764               !((flags = le32_to_cpu(np->get_rx.ex->flaglen)) & NV_RX2_AVAIL) &&
2765               (rx_work < limit)) {
2766
2767                 dprintk(KERN_DEBUG "%s: nv_rx_process_optimized: flags 0x%x.\n",
2768                                         dev->name, flags);
2769
2770                 /*
2771                  * the packet is for us - immediately tear down the pci mapping.
2772                  * TODO: check if a prefetch of the first cacheline improves
2773                  * the performance.
2774                  */
2775                 pci_unmap_single(np->pci_dev, np->get_rx_ctx->dma,
2776                                 np->get_rx_ctx->dma_len,
2777                                 PCI_DMA_FROMDEVICE);
2778                 skb = np->get_rx_ctx->skb;
2779                 np->get_rx_ctx->skb = NULL;
2780
2781                 {
2782                         int j;
2783                         dprintk(KERN_DEBUG "Dumping packet (flags 0x%x).",flags);
2784                         for (j=0; j<64; j++) {
2785                                 if ((j%16) == 0)
2786                                         dprintk("\n%03x:", j);
2787                                 dprintk(" %02x", ((unsigned char*)skb->data)[j]);
2788                         }
2789                         dprintk("\n");
2790                 }
2791                 /* look at what we actually got: */
2792                 if (likely(flags & NV_RX2_DESCRIPTORVALID)) {
2793                         len = flags & LEN_MASK_V2;
2794                         if (unlikely(flags & NV_RX2_ERROR)) {
2795                                 if ((flags & NV_RX2_ERROR_MASK) == NV_RX2_ERROR4) {
2796                                         len = nv_getlen(dev, skb->data, len);
2797                                         if (len < 0) {
2798                                                 dev_kfree_skb(skb);
2799                                                 goto next_pkt;
2800                                         }
2801                                 }
2802                                 /* framing errors are soft errors */
2803                                 else if ((flags & NV_RX2_ERROR_MASK) == NV_RX2_FRAMINGERR) {
2804                                         if (flags & NV_RX2_SUBSTRACT1) {
2805                                                 len--;
2806                                         }
2807                                 }
2808                                 /* the rest are hard errors */
2809                                 else {
2810                                         dev_kfree_skb(skb);
2811                                         goto next_pkt;
2812                                 }
2813                         }
2814
2815                         if (((flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUM_IP_TCP) || /*ip and tcp */
2816                             ((flags & NV_RX2_CHECKSUMMASK) == NV_RX2_CHECKSUM_IP_UDP))   /*ip and udp */
2817                                 skb->ip_summed = CHECKSUM_UNNECESSARY;
2818
2819                         /* got a valid packet - forward it to the network core */
2820                         skb_put(skb, len);
2821                         skb->protocol = eth_type_trans(skb, dev);
2822                         prefetch(skb->data);
2823
2824                         dprintk(KERN_DEBUG "%s: nv_rx_process_optimized: %d bytes, proto %d accepted.\n",
2825                                 dev->name, len, skb->protocol);
2826
2827                         if (likely(!np->vlangrp)) {
2828 #ifdef CONFIG_FORCEDETH_NAPI
2829                                 netif_receive_skb(skb);
2830 #else
2831                                 netif_rx(skb);
2832 #endif
2833                         } else {
2834                                 vlanflags = le32_to_cpu(np->get_rx.ex->buflow);
2835                                 if (vlanflags & NV_RX3_VLAN_TAG_PRESENT) {
2836 #ifdef CONFIG_FORCEDETH_NAPI
2837                                         vlan_hwaccel_receive_skb(skb, np->vlangrp,
2838                                                                  vlanflags & NV_RX3_VLAN_TAG_MASK);
2839 #else
2840                                         vlan_hwaccel_rx(skb, np->vlangrp,
2841                                                         vlanflags & NV_RX3_VLAN_TAG_MASK);
2842 #endif
2843                                 } else {
2844 #ifdef CONFIG_FORCEDETH_NAPI
2845                                         netif_receive_skb(skb);
2846 #else
2847                                         netif_rx(skb);
2848 #endif
2849                                 }
2850                         }
2851
2852                         dev->stats.rx_packets++;
2853                         dev->stats.rx_bytes += len;
2854                 } else {
2855                         dev_kfree_skb(skb);
2856                 }
2857 next_pkt:
2858                 if (unlikely(np->get_rx.ex++ == np->last_rx.ex))
2859                         np->get_rx.ex = np->first_rx.ex;
2860                 if (unlikely(np->get_rx_ctx++ == np->last_rx_ctx))
2861                         np->get_rx_ctx = np->first_rx_ctx;
2862
2863                 rx_work++;
2864         }
2865
2866         return rx_work;
2867 }
2868
2869 static void set_bufsize(struct net_device *dev)
2870 {
2871         struct fe_priv *np = netdev_priv(dev);
2872
2873         if (dev->mtu <= ETH_DATA_LEN)
2874                 np->rx_buf_sz = ETH_DATA_LEN + NV_RX_HEADERS;
2875         else
2876                 np->rx_buf_sz = dev->mtu + NV_RX_HEADERS;
2877 }
2878
2879 /*
2880  * nv_change_mtu: dev->change_mtu function
2881  * Called with dev_base_lock held for read.
2882  */
2883 static int nv_change_mtu(struct net_device *dev, int new_mtu)
2884 {
2885         struct fe_priv *np = netdev_priv(dev);
2886         int old_mtu;
2887
2888         if (new_mtu < 64 || new_mtu > np->pkt_limit)
2889                 return -EINVAL;
2890
2891         old_mtu = dev->mtu;
2892         dev->mtu = new_mtu;
2893
2894         /* return early if the buffer sizes will not change */
2895         if (old_mtu <= ETH_DATA_LEN && new_mtu <= ETH_DATA_LEN)
2896                 return 0;
2897         if (old_mtu == new_mtu)
2898                 return 0;
2899
2900         /* synchronized against open : rtnl_lock() held by caller */
2901         if (netif_running(dev)) {
2902                 u8 __iomem *base = get_hwbase(dev);
2903                 /*
2904                  * It seems that the nic preloads valid ring entries into an
2905                  * internal buffer. The procedure for flushing everything is
2906                  * guessed, there is probably a simpler approach.
2907                  * Changing the MTU is a rare event, it shouldn't matter.
2908                  */
2909                 nv_disable_irq(dev);
2910                 netif_tx_lock_bh(dev);
2911                 netif_addr_lock(dev);
2912                 spin_lock(&np->lock);
2913                 /* stop engines */
2914                 nv_stop_rxtx(dev);
2915                 nv_txrx_reset(dev);
2916                 /* drain rx queue */
2917                 nv_drain_rxtx(dev);
2918                 /* reinit driver view of the rx queue */
2919                 set_bufsize(dev);
2920                 if (nv_init_ring(dev)) {
2921                         if (!np->in_shutdown)
2922                                 mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
2923                 }
2924                 /* reinit nic view of the rx queue */
2925                 writel(np->rx_buf_sz, base + NvRegOffloadConfig);
2926                 setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING);
2927                 writel( ((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT),
2928                         base + NvRegRingSizes);
2929                 pci_push(base);
2930                 writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
2931                 pci_push(base);
2932
2933                 /* restart rx engine */
2934                 nv_start_rxtx(dev);
2935                 spin_unlock(&np->lock);
2936                 netif_addr_unlock(dev);
2937                 netif_tx_unlock_bh(dev);
2938                 nv_enable_irq(dev);
2939         }
2940         return 0;
2941 }
2942
2943 static void nv_copy_mac_to_hw(struct net_device *dev)
2944 {
2945         u8 __iomem *base = get_hwbase(dev);
2946         u32 mac[2];
2947
2948         mac[0] = (dev->dev_addr[0] << 0) + (dev->dev_addr[1] << 8) +
2949                         (dev->dev_addr[2] << 16) + (dev->dev_addr[3] << 24);
2950         mac[1] = (dev->dev_addr[4] << 0) + (dev->dev_addr[5] << 8);
2951
2952         writel(mac[0], base + NvRegMacAddrA);
2953         writel(mac[1], base + NvRegMacAddrB);
2954 }
2955
2956 /*
2957  * nv_set_mac_address: dev->set_mac_address function
2958  * Called with rtnl_lock() held.
2959  */
2960 static int nv_set_mac_address(struct net_device *dev, void *addr)
2961 {
2962         struct fe_priv *np = netdev_priv(dev);
2963         struct sockaddr *macaddr = (struct sockaddr*)addr;
2964
2965         if (!is_valid_ether_addr(macaddr->sa_data))
2966                 return -EADDRNOTAVAIL;
2967
2968         /* synchronized against open : rtnl_lock() held by caller */
2969         memcpy(dev->dev_addr, macaddr->sa_data, ETH_ALEN);
2970
2971         if (netif_running(dev)) {
2972                 netif_tx_lock_bh(dev);
2973                 netif_addr_lock(dev);
2974                 spin_lock_irq(&np->lock);
2975
2976                 /* stop rx engine */
2977                 nv_stop_rx(dev);
2978
2979                 /* set mac address */
2980                 nv_copy_mac_to_hw(dev);
2981
2982                 /* restart rx engine */
2983                 nv_start_rx(dev);
2984                 spin_unlock_irq(&np->lock);
2985                 netif_addr_unlock(dev);
2986                 netif_tx_unlock_bh(dev);
2987         } else {
2988                 nv_copy_mac_to_hw(dev);
2989         }
2990         return 0;
2991 }
2992
2993 /*
2994  * nv_set_multicast: dev->set_multicast function
2995  * Called with netif_tx_lock held.
2996  */
2997 static void nv_set_multicast(struct net_device *dev)
2998 {
2999         struct fe_priv *np = netdev_priv(dev);
3000         u8 __iomem *base = get_hwbase(dev);
3001         u32 addr[2];
3002         u32 mask[2];
3003         u32 pff = readl(base + NvRegPacketFilterFlags) & NVREG_PFF_PAUSE_RX;
3004
3005         memset(addr, 0, sizeof(addr));
3006         memset(mask, 0, sizeof(mask));
3007
3008         if (dev->flags & IFF_PROMISC) {
3009                 pff |= NVREG_PFF_PROMISC;
3010         } else {
3011                 pff |= NVREG_PFF_MYADDR;
3012
3013                 if (dev->flags & IFF_ALLMULTI || dev->mc_list) {
3014                         u32 alwaysOff[2];
3015                         u32 alwaysOn[2];
3016
3017                         alwaysOn[0] = alwaysOn[1] = alwaysOff[0] = alwaysOff[1] = 0xffffffff;
3018                         if (dev->flags & IFF_ALLMULTI) {
3019                                 alwaysOn[0] = alwaysOn[1] = alwaysOff[0] = alwaysOff[1] = 0;
3020                         } else {
3021                                 struct dev_mc_list *walk;
3022
3023                                 walk = dev->mc_list;
3024                                 while (walk != NULL) {
3025                                         u32 a, b;
3026                                         a = le32_to_cpu(*(__le32 *) walk->dmi_addr);
3027                                         b = le16_to_cpu(*(__le16 *) (&walk->dmi_addr[4]));
3028                                         alwaysOn[0] &= a;
3029                                         alwaysOff[0] &= ~a;
3030                                         alwaysOn[1] &= b;
3031                                         alwaysOff[1] &= ~b;
3032                                         walk = walk->next;
3033                                 }
3034                         }
3035                         addr[0] = alwaysOn[0];
3036                         addr[1] = alwaysOn[1];
3037                         mask[0] = alwaysOn[0] | alwaysOff[0];
3038                         mask[1] = alwaysOn[1] | alwaysOff[1];
3039                 } else {
3040                         mask[0] = NVREG_MCASTMASKA_NONE;
3041                         mask[1] = NVREG_MCASTMASKB_NONE;
3042                 }
3043         }
3044         addr[0] |= NVREG_MCASTADDRA_FORCE;
3045         pff |= NVREG_PFF_ALWAYS;
3046         spin_lock_irq(&np->lock);
3047         nv_stop_rx(dev);
3048         writel(addr[0], base + NvRegMulticastAddrA);
3049         writel(addr[1], base + NvRegMulticastAddrB);
3050         writel(mask[0], base + NvRegMulticastMaskA);
3051         writel(mask[1], base + NvRegMulticastMaskB);
3052         writel(pff, base + NvRegPacketFilterFlags);
3053         dprintk(KERN_INFO "%s: reconfiguration for multicast lists.\n",
3054                 dev->name);
3055         nv_start_rx(dev);
3056         spin_unlock_irq(&np->lock);
3057 }
3058
3059 static void nv_update_pause(struct net_device *dev, u32 pause_flags)
3060 {
3061         struct fe_priv *np = netdev_priv(dev);
3062         u8 __iomem *base = get_hwbase(dev);
3063
3064         np->pause_flags &= ~(NV_PAUSEFRAME_TX_ENABLE | NV_PAUSEFRAME_RX_ENABLE);
3065
3066         if (np->pause_flags & NV_PAUSEFRAME_RX_CAPABLE) {
3067                 u32 pff = readl(base + NvRegPacketFilterFlags) & ~NVREG_PFF_PAUSE_RX;
3068                 if (pause_flags & NV_PAUSEFRAME_RX_ENABLE) {
3069                         writel(pff|NVREG_PFF_PAUSE_RX, base + NvRegPacketFilterFlags);
3070                         np->pause_flags |= NV_PAUSEFRAME_RX_ENABLE;
3071                 } else {
3072                         writel(pff, base + NvRegPacketFilterFlags);
3073                 }
3074         }
3075         if (np->pause_flags & NV_PAUSEFRAME_TX_CAPABLE) {
3076                 u32 regmisc = readl(base + NvRegMisc1) & ~NVREG_MISC1_PAUSE_TX;
3077                 if (pause_flags & NV_PAUSEFRAME_TX_ENABLE) {
3078                         u32 pause_enable = NVREG_TX_PAUSEFRAME_ENABLE_V1;
3079                         if (np->driver_data & DEV_HAS_PAUSEFRAME_TX_V2)
3080                                 pause_enable = NVREG_TX_PAUSEFRAME_ENABLE_V2;
3081                         if (np->driver_data & DEV_HAS_PAUSEFRAME_TX_V3) {
3082                                 pause_enable = NVREG_TX_PAUSEFRAME_ENABLE_V3;
3083                                 /* limit the number of tx pause frames to a default of 8 */
3084                                 writel(readl(base + NvRegTxPauseFrameLimit)|NVREG_TX_PAUSEFRAMELIMIT_ENABLE, base + NvRegTxPauseFrameLimit);
3085                         }
3086                         writel(pause_enable,  base + NvRegTxPauseFrame);
3087                         writel(regmisc|NVREG_MISC1_PAUSE_TX, base + NvRegMisc1);
3088                         np->pause_flags |= NV_PAUSEFRAME_TX_ENABLE;
3089                 } else {
3090                         writel(NVREG_TX_PAUSEFRAME_DISABLE,  base + NvRegTxPauseFrame);
3091                         writel(regmisc, base + NvRegMisc1);
3092                 }
3093         }
3094 }
3095
3096 /**
3097  * nv_update_linkspeed: Setup the MAC according to the link partner
3098  * @dev: Network device to be configured
3099  *
3100  * The function queries the PHY and checks if there is a link partner.
3101  * If yes, then it sets up the MAC accordingly. Otherwise, the MAC is
3102  * set to 10 MBit HD.
3103  *
3104  * The function returns 0 if there is no link partner and 1 if there is
3105  * a good link partner.
3106  */
3107 static int nv_update_linkspeed(struct net_device *dev)
3108 {
3109         struct fe_priv *np = netdev_priv(dev);
3110         u8 __iomem *base = get_hwbase(dev);
3111         int adv = 0;
3112         int lpa = 0;
3113         int adv_lpa, adv_pause, lpa_pause;
3114         int newls = np->linkspeed;
3115         int newdup = np->duplex;
3116         int mii_status;
3117         int retval = 0;
3118         u32 control_1000, status_1000, phyreg, pause_flags, txreg;
3119         u32 txrxFlags = 0;
3120         u32 phy_exp;
3121
3122         /* BMSR_LSTATUS is latched, read it twice:
3123          * we want the current value.
3124          */
3125         mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ);
3126         mii_status = mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ);
3127
3128         if (!(mii_status & BMSR_LSTATUS)) {
3129                 dprintk(KERN_DEBUG "%s: no link detected by phy - falling back to 10HD.\n",
3130                                 dev->name);
3131                 newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
3132                 newdup = 0;
3133                 retval = 0;
3134                 goto set_speed;
3135         }
3136
3137         if (np->autoneg == 0) {
3138                 dprintk(KERN_DEBUG "%s: nv_update_linkspeed: autoneg off, PHY set to 0x%04x.\n",
3139                                 dev->name, np->fixed_mode);
3140                 if (np->fixed_mode & LPA_100FULL) {
3141                         newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_100;
3142                         newdup = 1;
3143                 } else if (np->fixed_mode & LPA_100HALF) {
3144                         newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_100;
3145                         newdup = 0;
3146                 } else if (np->fixed_mode & LPA_10FULL) {
3147                         newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
3148                         newdup = 1;
3149                 } else {
3150                         newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
3151                         newdup = 0;
3152                 }
3153                 retval = 1;
3154                 goto set_speed;
3155         }
3156         /* check auto negotiation is complete */
3157         if (!(mii_status & BMSR_ANEGCOMPLETE)) {
3158                 /* still in autonegotiation - configure nic for 10 MBit HD and wait. */
3159                 newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
3160                 newdup = 0;
3161                 retval = 0;
3162                 dprintk(KERN_DEBUG "%s: autoneg not completed - falling back to 10HD.\n", dev->name);
3163                 goto set_speed;
3164         }
3165
3166         adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ);
3167         lpa = mii_rw(dev, np->phyaddr, MII_LPA, MII_READ);
3168         dprintk(KERN_DEBUG "%s: nv_update_linkspeed: PHY advertises 0x%04x, lpa 0x%04x.\n",
3169                                 dev->name, adv, lpa);
3170
3171         retval = 1;
3172         if (np->gigabit == PHY_GIGABIT) {
3173                 control_1000 = mii_rw(dev, np->phyaddr, MII_CTRL1000, MII_READ);
3174                 status_1000 = mii_rw(dev, np->phyaddr, MII_STAT1000, MII_READ);
3175
3176                 if ((control_1000 & ADVERTISE_1000FULL) &&
3177                         (status_1000 & LPA_1000FULL)) {
3178                         dprintk(KERN_DEBUG "%s: nv_update_linkspeed: GBit ethernet detected.\n",
3179                                 dev->name);
3180                         newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_1000;
3181                         newdup = 1;
3182                         goto set_speed;
3183                 }
3184         }
3185
3186         /* FIXME: handle parallel detection properly */
3187         adv_lpa = lpa & adv;
3188         if (adv_lpa & LPA_100FULL) {
3189                 newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_100;
3190                 newdup = 1;
3191         } else if (adv_lpa & LPA_100HALF) {
3192                 newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_100;
3193                 newdup = 0;
3194         } else if (adv_lpa & LPA_10FULL) {
3195                 newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
3196                 newdup = 1;
3197         } else if (adv_lpa & LPA_10HALF) {
3198                 newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
3199                 newdup = 0;
3200         } else {
3201                 dprintk(KERN_DEBUG "%s: bad ability %04x - falling back to 10HD.\n", dev->name, adv_lpa);
3202                 newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
3203                 newdup = 0;
3204         }
3205
3206 set_speed:
3207         if (np->duplex == newdup && np->linkspeed == newls)
3208                 return retval;
3209
3210         dprintk(KERN_INFO "%s: changing link setting from %d/%d to %d/%d.\n",
3211                         dev->name, np->linkspeed, np->duplex, newls, newdup);
3212
3213         np->duplex = newdup;
3214         np->linkspeed = newls;
3215
3216         /* The transmitter and receiver must be restarted for safe update */
3217         if (readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_START) {
3218                 txrxFlags |= NV_RESTART_TX;
3219                 nv_stop_tx(dev);
3220         }
3221         if (readl(base + NvRegReceiverControl) & NVREG_RCVCTL_START) {
3222                 txrxFlags |= NV_RESTART_RX;
3223                 nv_stop_rx(dev);
3224         }
3225
3226         if (np->gigabit == PHY_GIGABIT) {
3227                 phyreg = readl(base + NvRegSlotTime);
3228                 phyreg &= ~(0x3FF00);
3229                 if (((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_10) ||
3230                     ((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_100))
3231                         phyreg |= NVREG_SLOTTIME_10_100_FULL;
3232                 else if ((np->linkspeed & 0xFFF) == NVREG_LINKSPEED_1000)
3233                         phyreg |= NVREG_SLOTTIME_1000_FULL;
3234                 writel(phyreg, base + NvRegSlotTime);
3235         }
3236
3237         phyreg = readl(base + NvRegPhyInterface);
3238         phyreg &= ~(PHY_HALF|PHY_100|PHY_1000);
3239         if (np->duplex == 0)
3240                 phyreg |= PHY_HALF;
3241         if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_100)
3242                 phyreg |= PHY_100;
3243         else if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_1000)
3244                 phyreg |= PHY_1000;
3245         writel(phyreg, base + NvRegPhyInterface);
3246
3247         phy_exp = mii_rw(dev, np->phyaddr, MII_EXPANSION, MII_READ) & EXPANSION_NWAY; /* autoneg capable */
3248         if (phyreg & PHY_RGMII) {
3249                 if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_1000) {
3250                         txreg = NVREG_TX_DEFERRAL_RGMII_1000;
3251                 } else {
3252                         if (!phy_exp && !np->duplex && (np->driver_data & DEV_HAS_COLLISION_FIX)) {
3253                                 if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_10)
3254                                         txreg = NVREG_TX_DEFERRAL_RGMII_STRETCH_10;
3255                                 else
3256                                         txreg = NVREG_TX_DEFERRAL_RGMII_STRETCH_100;
3257                         } else {
3258                                 txreg = NVREG_TX_DEFERRAL_RGMII_10_100;
3259                         }
3260                 }
3261         } else {
3262                 if (!phy_exp && !np->duplex && (np->driver_data & DEV_HAS_COLLISION_FIX))
3263                         txreg = NVREG_TX_DEFERRAL_MII_STRETCH;
3264                 else
3265                         txreg = NVREG_TX_DEFERRAL_DEFAULT;
3266         }
3267         writel(txreg, base + NvRegTxDeferral);
3268
3269         if (np->desc_ver == DESC_VER_1) {
3270                 txreg = NVREG_TX_WM_DESC1_DEFAULT;
3271         } else {
3272                 if ((np->linkspeed & NVREG_LINKSPEED_MASK) == NVREG_LINKSPEED_1000)
3273                         txreg = NVREG_TX_WM_DESC2_3_1000;
3274                 else
3275                         txreg = NVREG_TX_WM_DESC2_3_DEFAULT;
3276         }
3277         writel(txreg, base + NvRegTxWatermark);
3278
3279         writel(NVREG_MISC1_FORCE | ( np->duplex ? 0 : NVREG_MISC1_HD),
3280                 base + NvRegMisc1);
3281         pci_push(base);
3282         writel(np->linkspeed, base + NvRegLinkSpeed);
3283         pci_push(base);
3284
3285         pause_flags = 0;
3286         /* setup pause frame */
3287         if (np->duplex != 0) {
3288                 if (np->autoneg && np->pause_flags & NV_PAUSEFRAME_AUTONEG) {
3289                         adv_pause = adv & (ADVERTISE_PAUSE_CAP| ADVERTISE_PAUSE_ASYM);
3290                         lpa_pause = lpa & (LPA_PAUSE_CAP| LPA_PAUSE_ASYM);
3291
3292                         switch (adv_pause) {
3293                         case ADVERTISE_PAUSE_CAP:
3294                                 if (lpa_pause & LPA_PAUSE_CAP) {
3295                                         pause_flags |= NV_PAUSEFRAME_RX_ENABLE;
3296                                         if (np->pause_flags & NV_PAUSEFRAME_TX_REQ)
3297                                                 pause_flags |= NV_PAUSEFRAME_TX_ENABLE;
3298                                 }
3299                                 break;
3300                         case ADVERTISE_PAUSE_ASYM:
3301                                 if (lpa_pause == (LPA_PAUSE_CAP| LPA_PAUSE_ASYM))
3302                                 {
3303                                         pause_flags |= NV_PAUSEFRAME_TX_ENABLE;
3304                                 }
3305                                 break;
3306                         case ADVERTISE_PAUSE_CAP| ADVERTISE_PAUSE_ASYM:
3307                                 if (lpa_pause & LPA_PAUSE_CAP)
3308                                 {
3309                                         pause_flags |=  NV_PAUSEFRAME_RX_ENABLE;
3310                                         if (np->pause_flags & NV_PAUSEFRAME_TX_REQ)
3311                                                 pause_flags |= NV_PAUSEFRAME_TX_ENABLE;
3312                                 }
3313                                 if (lpa_pause == LPA_PAUSE_ASYM)
3314                                 {
3315                                         pause_flags |= NV_PAUSEFRAME_RX_ENABLE;
3316                                 }
3317                                 break;
3318                         }
3319                 } else {
3320                         pause_flags = np->pause_flags;
3321                 }
3322         }
3323         nv_update_pause(dev, pause_flags);
3324
3325         if (txrxFlags & NV_RESTART_TX)
3326                 nv_start_tx(dev);
3327         if (txrxFlags & NV_RESTART_RX)
3328                 nv_start_rx(dev);
3329
3330         return retval;
3331 }
3332
3333 static void nv_linkchange(struct net_device *dev)
3334 {
3335         if (nv_update_linkspeed(dev)) {
3336                 if (!netif_carrier_ok(dev)) {
3337                         netif_carrier_on(dev);
3338                         printk(KERN_INFO "%s: link up.\n", dev->name);
3339                         nv_start_rx(dev);
3340                 }
3341         } else {
3342                 if (netif_carrier_ok(dev)) {
3343                         netif_carrier_off(dev);
3344                         printk(KERN_INFO "%s: link down.\n", dev->name);
3345                         nv_stop_rx(dev);
3346                 }
3347         }
3348 }
3349
3350 static void nv_link_irq(struct net_device *dev)
3351 {
3352         u8 __iomem *base = get_hwbase(dev);
3353         u32 miistat;
3354
3355         miistat = readl(base + NvRegMIIStatus);
3356         writel(NVREG_MIISTAT_LINKCHANGE, base + NvRegMIIStatus);
3357         dprintk(KERN_INFO "%s: link change irq, status 0x%x.\n", dev->name, miistat);
3358
3359         if (miistat & (NVREG_MIISTAT_LINKCHANGE))
3360                 nv_linkchange(dev);
3361         dprintk(KERN_DEBUG "%s: link change notification done.\n", dev->name);
3362 }
3363
3364 static void nv_msi_workaround(struct fe_priv *np)
3365 {
3366
3367         /* Need to toggle the msi irq mask within the ethernet device,
3368          * otherwise, future interrupts will not be detected.
3369          */
3370         if (np->msi_flags & NV_MSI_ENABLED) {
3371                 u8 __iomem *base = np->base;
3372
3373                 writel(0, base + NvRegMSIIrqMask);
3374                 writel(NVREG_MSI_VECTOR_0_ENABLED, base + NvRegMSIIrqMask);
3375         }
3376 }
3377
3378 static irqreturn_t nv_nic_irq(int foo, void *data)
3379 {
3380         struct net_device *dev = (struct net_device *) data;
3381         struct fe_priv *np = netdev_priv(dev);
3382         u8 __iomem *base = get_hwbase(dev);
3383         u32 events;
3384         int i;
3385
3386         dprintk(KERN_DEBUG "%s: nv_nic_irq\n", dev->name);
3387
3388         for (i=0; ; i++) {
3389                 if (!(np->msi_flags & NV_MSI_X_ENABLED)) {
3390                         events = readl(base + NvRegIrqStatus) & NVREG_IRQSTAT_MASK;
3391                         writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus);
3392                 } else {
3393                         events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQSTAT_MASK;
3394                         writel(NVREG_IRQSTAT_MASK, base + NvRegMSIXIrqStatus);
3395                 }
3396                 dprintk(KERN_DEBUG "%s: irq: %08x\n", dev->name, events);
3397                 if (!(events & np->irqmask))
3398                         break;
3399
3400                 nv_msi_workaround(np);
3401
3402                 spin_lock(&np->lock);
3403                 nv_tx_done(dev);
3404                 spin_unlock(&np->lock);
3405
3406 #ifdef CONFIG_FORCEDETH_NAPI
3407                 if (events & NVREG_IRQ_RX_ALL) {
3408                         spin_lock(&np->lock);
3409                         netif_rx_schedule(&np->napi);
3410
3411                         /* Disable furthur receive irq's */
3412                         np->irqmask &= ~NVREG_IRQ_RX_ALL;
3413
3414                         if (np->msi_flags & NV_MSI_X_ENABLED)
3415                                 writel(NVREG_IRQ_RX_ALL, base + NvRegIrqMask);
3416                         else
3417                                 writel(np->irqmask, base + NvRegIrqMask);
3418                         spin_unlock(&np->lock);
3419                 }
3420 #else
3421                 if (nv_rx_process(dev, RX_WORK_PER_LOOP)) {
3422                         if (unlikely(nv_alloc_rx(dev))) {
3423                                 spin_lock(&np->lock);
3424                                 if (!np->in_shutdown)
3425                                         mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
3426                                 spin_unlock(&np->lock);
3427                         }
3428                 }
3429 #endif
3430                 if (unlikely(events & NVREG_IRQ_LINK)) {
3431                         spin_lock(&np->lock);
3432                         nv_link_irq(dev);
3433                         spin_unlock(&np->lock);
3434                 }
3435                 if (unlikely(np->need_linktimer && time_after(jiffies, np->link_timeout))) {
3436                         spin_lock(&np->lock);
3437                         nv_linkchange(dev);
3438                         spin_unlock(&np->lock);
3439                         np->link_timeout = jiffies + LINK_TIMEOUT;
3440                 }
3441                 if (unlikely(events & (NVREG_IRQ_TX_ERR))) {
3442                         dprintk(KERN_DEBUG "%s: received irq with events 0x%x. Probably TX fail.\n",
3443                                                 dev->name, events);
3444                 }
3445                 if (unlikely(events & (NVREG_IRQ_UNKNOWN))) {
3446                         printk(KERN_DEBUG "%s: received irq with unknown events 0x%x. Please report\n",
3447                                                 dev->name, events);
3448                 }
3449                 if (unlikely(events & NVREG_IRQ_RECOVER_ERROR)) {
3450                         spin_lock(&np->lock);
3451                         /* disable interrupts on the nic */
3452                         if (!(np->msi_flags & NV_MSI_X_ENABLED))
3453                                 writel(0, base + NvRegIrqMask);
3454                         else
3455                                 writel(np->irqmask, base + NvRegIrqMask);
3456                         pci_push(base);
3457
3458                         if (!np->in_shutdown) {
3459                                 np->nic_poll_irq = np->irqmask;
3460                                 np->recover_error = 1;
3461                                 mod_timer(&np->nic_poll, jiffies + POLL_WAIT);
3462                         }
3463                         spin_unlock(&np->lock);
3464                         break;
3465                 }
3466                 if (unlikely(i > max_interrupt_work)) {
3467                         spin_lock(&np->lock);
3468                         /* disable interrupts on the nic */
3469                         if (!(np->msi_flags & NV_MSI_X_ENABLED))
3470                                 writel(0, base + NvRegIrqMask);
3471                         else
3472                                 writel(np->irqmask, base + NvRegIrqMask);
3473                         pci_push(base);
3474
3475                         if (!np->in_shutdown) {
3476                                 np->nic_poll_irq = np->irqmask;
3477                                 mod_timer(&np->nic_poll, jiffies + POLL_WAIT);
3478                         }
3479                         spin_unlock(&np->lock);
3480                         printk(KERN_DEBUG "%s: too many iterations (%d) in nv_nic_irq.\n", dev->name, i);
3481                         break;
3482                 }
3483
3484         }
3485         dprintk(KERN_DEBUG "%s: nv_nic_irq completed\n", dev->name);
3486
3487         return IRQ_RETVAL(i);
3488 }
3489
3490 /**
3491  * All _optimized functions are used to help increase performance
3492  * (reduce CPU and increase throughput). They use descripter version 3,
3493  * compiler directives, and reduce memory accesses.
3494  */
3495 static irqreturn_t nv_nic_irq_optimized(int foo, void *data)
3496 {
3497         struct net_device *dev = (struct net_device *) data;
3498         struct fe_priv *np = netdev_priv(dev);
3499         u8 __iomem *base = get_hwbase(dev);
3500         u32 events;
3501         int i;
3502
3503         dprintk(KERN_DEBUG "%s: nv_nic_irq_optimized\n", dev->name);
3504
3505         for (i=0; ; i++) {
3506                 if (!(np->msi_flags & NV_MSI_X_ENABLED)) {
3507                         events = readl(base + NvRegIrqStatus) & NVREG_IRQSTAT_MASK;
3508                         writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus);
3509                 } else {
3510                         events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQSTAT_MASK;
3511                         writel(NVREG_IRQSTAT_MASK, base + NvRegMSIXIrqStatus);
3512                 }
3513                 dprintk(KERN_DEBUG "%s: irq: %08x\n", dev->name, events);
3514                 if (!(events & np->irqmask))
3515                         break;
3516
3517                 nv_msi_workaround(np);
3518
3519                 spin_lock(&np->lock);
3520                 nv_tx_done_optimized(dev, TX_WORK_PER_LOOP);
3521                 spin_unlock(&np->lock);
3522
3523 #ifdef CONFIG_FORCEDETH_NAPI
3524                 if (events & NVREG_IRQ_RX_ALL) {
3525                         spin_lock(&np->lock);
3526                         netif_rx_schedule(&np->napi);
3527
3528                         /* Disable furthur receive irq's */
3529                         np->irqmask &= ~NVREG_IRQ_RX_ALL;
3530
3531                         if (np->msi_flags & NV_MSI_X_ENABLED)
3532                                 writel(NVREG_IRQ_RX_ALL, base + NvRegIrqMask);
3533                         else
3534                                 writel(np->irqmask, base + NvRegIrqMask);
3535                         spin_unlock(&np->lock);
3536                 }
3537 #else
3538                 if (nv_rx_process_optimized(dev, RX_WORK_PER_LOOP)) {
3539                         if (unlikely(nv_alloc_rx_optimized(dev))) {
3540                                 spin_lock(&np->lock);
3541                                 if (!np->in_shutdown)
3542                                         mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
3543                                 spin_unlock(&np->lock);
3544                         }
3545                 }
3546 #endif
3547                 if (unlikely(events & NVREG_IRQ_LINK)) {
3548                         spin_lock(&np->lock);
3549                         nv_link_irq(dev);
3550                         spin_unlock(&np->lock);
3551                 }
3552                 if (unlikely(np->need_linktimer && time_after(jiffies, np->link_timeout))) {
3553                         spin_lock(&np->lock);
3554                         nv_linkchange(dev);
3555                         spin_unlock(&np->lock);
3556                         np->link_timeout = jiffies + LINK_TIMEOUT;
3557                 }
3558                 if (unlikely(events & (NVREG_IRQ_TX_ERR))) {
3559                         dprintk(KERN_DEBUG "%s: received irq with events 0x%x. Probably TX fail.\n",
3560                                                 dev->name, events);
3561                 }
3562                 if (unlikely(events & (NVREG_IRQ_UNKNOWN))) {
3563                         printk(KERN_DEBUG "%s: received irq with unknown events 0x%x. Please report\n",
3564                                                 dev->name, events);
3565                 }
3566                 if (unlikely(events & NVREG_IRQ_RECOVER_ERROR)) {
3567                         spin_lock(&np->lock);
3568                         /* disable interrupts on the nic */
3569                         if (!(np->msi_flags & NV_MSI_X_ENABLED))
3570                                 writel(0, base + NvRegIrqMask);
3571                         else
3572                                 writel(np->irqmask, base + NvRegIrqMask);
3573                         pci_push(base);
3574
3575                         if (!np->in_shutdown) {
3576                                 np->nic_poll_irq = np->irqmask;
3577                                 np->recover_error = 1;
3578                                 mod_timer(&np->nic_poll, jiffies + POLL_WAIT);
3579                         }
3580                         spin_unlock(&np->lock);
3581                         break;
3582                 }
3583
3584                 if (unlikely(i > max_interrupt_work)) {
3585                         spin_lock(&np->lock);
3586                         /* disable interrupts on the nic */
3587                         if (!(np->msi_flags & NV_MSI_X_ENABLED))
3588                                 writel(0, base + NvRegIrqMask);
3589                         else
3590                                 writel(np->irqmask, base + NvRegIrqMask);
3591                         pci_push(base);
3592
3593                         if (!np->in_shutdown) {
3594                                 np->nic_poll_irq = np->irqmask;
3595                                 mod_timer(&np->nic_poll, jiffies + POLL_WAIT);
3596                         }
3597                         spin_unlock(&np->lock);
3598                         printk(KERN_DEBUG "%s: too many iterations (%d) in nv_nic_irq.\n", dev->name, i);
3599                         break;
3600                 }
3601
3602         }
3603         dprintk(KERN_DEBUG "%s: nv_nic_irq_optimized completed\n", dev->name);
3604
3605         return IRQ_RETVAL(i);
3606 }
3607
3608 static irqreturn_t nv_nic_irq_tx(int foo, void *data)
3609 {
3610         struct net_device *dev = (struct net_device *) data;
3611         struct fe_priv *np = netdev_priv(dev);
3612         u8 __iomem *base = get_hwbase(dev);
3613         u32 events;
3614         int i;
3615         unsigned long flags;
3616
3617         dprintk(KERN_DEBUG "%s: nv_nic_irq_tx\n", dev->name);
3618
3619         for (i=0; ; i++) {
3620                 events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQ_TX_ALL;
3621                 writel(NVREG_IRQ_TX_ALL, base + NvRegMSIXIrqStatus);
3622                 dprintk(KERN_DEBUG "%s: tx irq: %08x\n", dev->name, events);
3623                 if (!(events & np->irqmask))
3624                         break;
3625
3626                 spin_lock_irqsave(&np->lock, flags);
3627                 nv_tx_done_optimized(dev, TX_WORK_PER_LOOP);
3628                 spin_unlock_irqrestore(&np->lock, flags);
3629
3630                 if (unlikely(events & (NVREG_IRQ_TX_ERR))) {
3631                         dprintk(KERN_DEBUG "%s: received irq with events 0x%x. Probably TX fail.\n",
3632                                                 dev->name, events);
3633                 }
3634                 if (unlikely(i > max_interrupt_work)) {
3635                         spin_lock_irqsave(&np->lock, flags);
3636                         /* disable interrupts on the nic */
3637                         writel(NVREG_IRQ_TX_ALL, base + NvRegIrqMask);
3638                         pci_push(base);
3639
3640                         if (!np->in_shutdown) {
3641                                 np->nic_poll_irq |= NVREG_IRQ_TX_ALL;
3642                                 mod_timer(&np->nic_poll, jiffies + POLL_WAIT);
3643                         }
3644                         spin_unlock_irqrestore(&np->lock, flags);
3645                         printk(KERN_DEBUG "%s: too many iterations (%d) in nv_nic_irq_tx.\n", dev->name, i);
3646                         break;
3647                 }
3648
3649         }
3650         dprintk(KERN_DEBUG "%s: nv_nic_irq_tx completed\n", dev->name);
3651
3652         return IRQ_RETVAL(i);
3653 }
3654
3655 #ifdef CONFIG_FORCEDETH_NAPI
3656 static int nv_napi_poll(struct napi_struct *napi, int budget)
3657 {
3658         struct fe_priv *np = container_of(napi, struct fe_priv, napi);
3659         struct net_device *dev = np->dev;
3660         u8 __iomem *base = get_hwbase(dev);
3661         unsigned long flags;
3662         int pkts, retcode;
3663
3664         if (!nv_optimized(np)) {
3665                 pkts = nv_rx_process(dev, budget);
3666                 retcode = nv_alloc_rx(dev);
3667         } else {
3668                 pkts = nv_rx_process_optimized(dev, budget);
3669                 retcode = nv_alloc_rx_optimized(dev);
3670         }
3671
3672         if (retcode) {
3673                 spin_lock_irqsave(&np->lock, flags);
3674                 if (!np->in_shutdown)
3675                         mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
3676                 spin_unlock_irqrestore(&np->lock, flags);
3677         }
3678
3679         if (pkts < budget) {
3680                 /* re-enable receive interrupts */
3681                 spin_lock_irqsave(&np->lock, flags);
3682
3683                 __netif_rx_complete(napi);
3684
3685                 np->irqmask |= NVREG_IRQ_RX_ALL;
3686                 if (np->msi_flags & NV_MSI_X_ENABLED)
3687                         writel(NVREG_IRQ_RX_ALL, base + NvRegIrqMask);
3688                 else
3689                         writel(np->irqmask, base + NvRegIrqMask);
3690
3691                 spin_unlock_irqrestore(&np->lock, flags);
3692         }
3693         return pkts;
3694 }
3695 #endif
3696
3697 #ifdef CONFIG_FORCEDETH_NAPI
3698 static irqreturn_t nv_nic_irq_rx(int foo, void *data)
3699 {
3700         struct net_device *dev = (struct net_device *) data;
3701         struct fe_priv *np = netdev_priv(dev);
3702         u8 __iomem *base = get_hwbase(dev);
3703         u32 events;
3704
3705         events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQ_RX_ALL;
3706         writel(NVREG_IRQ_RX_ALL, base + NvRegMSIXIrqStatus);
3707
3708         if (events) {
3709                 netif_rx_schedule(&np->napi);
3710                 /* disable receive interrupts on the nic */
3711                 writel(NVREG_IRQ_RX_ALL, base + NvRegIrqMask);
3712                 pci_push(base);
3713         }
3714         return IRQ_HANDLED;
3715 }
3716 #else
3717 static irqreturn_t nv_nic_irq_rx(int foo, void *data)
3718 {
3719         struct net_device *dev = (struct net_device *) data;
3720         struct fe_priv *np = netdev_priv(dev);
3721         u8 __iomem *base = get_hwbase(dev);
3722         u32 events;
3723         int i;
3724         unsigned long flags;
3725
3726         dprintk(KERN_DEBUG "%s: nv_nic_irq_rx\n", dev->name);
3727
3728         for (i=0; ; i++) {
3729                 events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQ_RX_ALL;
3730                 writel(NVREG_IRQ_RX_ALL, base + NvRegMSIXIrqStatus);
3731                 dprintk(KERN_DEBUG "%s: rx irq: %08x\n", dev->name, events);
3732                 if (!(events & np->irqmask))
3733                         break;
3734
3735                 if (nv_rx_process_optimized(dev, RX_WORK_PER_LOOP)) {
3736                         if (unlikely(nv_alloc_rx_optimized(dev))) {
3737                                 spin_lock_irqsave(&np->lock, flags);
3738                                 if (!np->in_shutdown)
3739                                         mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
3740                                 spin_unlock_irqrestore(&np->lock, flags);
3741                         }
3742                 }
3743
3744                 if (unlikely(i > max_interrupt_work)) {
3745                         spin_lock_irqsave(&np->lock, flags);
3746                         /* disable interrupts on the nic */
3747                         writel(NVREG_IRQ_RX_ALL, base + NvRegIrqMask);
3748                         pci_push(base);
3749
3750                         if (!np->in_shutdown) {
3751                                 np->nic_poll_irq |= NVREG_IRQ_RX_ALL;
3752                                 mod_timer(&np->nic_poll, jiffies + POLL_WAIT);
3753                         }
3754                         spin_unlock_irqrestore(&np->lock, flags);
3755                         printk(KERN_DEBUG "%s: too many iterations (%d) in nv_nic_irq_rx.\n", dev->name, i);
3756                         break;
3757                 }
3758         }
3759         dprintk(KERN_DEBUG "%s: nv_nic_irq_rx completed\n", dev->name);
3760
3761         return IRQ_RETVAL(i);
3762 }
3763 #endif
3764
3765 static irqreturn_t nv_nic_irq_other(int foo, void *data)
3766 {
3767         struct net_device *dev = (struct net_device *) data;
3768         struct fe_priv *np = netdev_priv(dev);
3769         u8 __iomem *base = get_hwbase(dev);
3770         u32 events;
3771         int i;
3772         unsigned long flags;
3773
3774         dprintk(KERN_DEBUG "%s: nv_nic_irq_other\n", dev->name);
3775
3776         for (i=0; ; i++) {
3777                 events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQ_OTHER;
3778                 writel(NVREG_IRQ_OTHER, base + NvRegMSIXIrqStatus);
3779                 dprintk(KERN_DEBUG "%s: irq: %08x\n", dev->name, events);
3780                 if (!(events & np->irqmask))
3781                         break;
3782
3783                 /* check tx in case we reached max loop limit in tx isr */
3784                 spin_lock_irqsave(&np->lock, flags);
3785                 nv_tx_done_optimized(dev, TX_WORK_PER_LOOP);
3786                 spin_unlock_irqrestore(&np->lock, flags);
3787
3788                 if (events & NVREG_IRQ_LINK) {
3789                         spin_lock_irqsave(&np->lock, flags);
3790                         nv_link_irq(dev);
3791                         spin_unlock_irqrestore(&np->lock, flags);
3792                 }
3793                 if (np->need_linktimer && time_after(jiffies, np->link_timeout)) {
3794                         spin_lock_irqsave(&np->lock, flags);
3795                         nv_linkchange(dev);
3796                         spin_unlock_irqrestore(&np->lock, flags);
3797                         np->link_timeout = jiffies + LINK_TIMEOUT;
3798                 }
3799                 if (events & NVREG_IRQ_RECOVER_ERROR) {
3800                         spin_lock_irq(&np->lock);
3801                         /* disable interrupts on the nic */
3802                         writel(NVREG_IRQ_OTHER, base + NvRegIrqMask);
3803                         pci_push(base);
3804
3805                         if (!np->in_shutdown) {
3806                                 np->nic_poll_irq |= NVREG_IRQ_OTHER;
3807                                 np->recover_error = 1;
3808                                 mod_timer(&np->nic_poll, jiffies + POLL_WAIT);
3809                         }
3810                         spin_unlock_irq(&np->lock);
3811                         break;
3812                 }
3813                 if (events & (NVREG_IRQ_UNKNOWN)) {
3814                         printk(KERN_DEBUG "%s: received irq with unknown events 0x%x. Please report\n",
3815                                                 dev->name, events);
3816                 }
3817                 if (unlikely(i > max_interrupt_work)) {
3818                         spin_lock_irqsave(&np->lock, flags);
3819                         /* disable interrupts on the nic */
3820                         writel(NVREG_IRQ_OTHER, base + NvRegIrqMask);
3821                         pci_push(base);
3822
3823                         if (!np->in_shutdown) {
3824                                 np->nic_poll_irq |= NVREG_IRQ_OTHER;
3825                                 mod_timer(&np->nic_poll, jiffies + POLL_WAIT);
3826                         }
3827                         spin_unlock_irqrestore(&np->lock, flags);
3828                         printk(KERN_DEBUG "%s: too many iterations (%d) in nv_nic_irq_other.\n", dev->name, i);
3829                         break;
3830                 }
3831
3832         }
3833         dprintk(KERN_DEBUG "%s: nv_nic_irq_other completed\n", dev->name);
3834
3835         return IRQ_RETVAL(i);
3836 }
3837
3838 static irqreturn_t nv_nic_irq_test(int foo, void *data)
3839 {
3840         struct net_device *dev = (struct net_device *) data;
3841         struct fe_priv *np = netdev_priv(dev);
3842         u8 __iomem *base = get_hwbase(dev);
3843         u32 events;
3844
3845         dprintk(KERN_DEBUG "%s: nv_nic_irq_test\n", dev->name);
3846
3847         if (!(np->msi_flags & NV_MSI_X_ENABLED)) {
3848                 events = readl(base + NvRegIrqStatus) & NVREG_IRQSTAT_MASK;
3849                 writel(NVREG_IRQ_TIMER, base + NvRegIrqStatus);
3850         } else {
3851                 events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQSTAT_MASK;
3852                 writel(NVREG_IRQ_TIMER, base + NvRegMSIXIrqStatus);
3853         }
3854         pci_push(base);
3855         dprintk(KERN_DEBUG "%s: irq: %08x\n", dev->name, events);
3856         if (!(events & NVREG_IRQ_TIMER))
3857                 return IRQ_RETVAL(0);
3858
3859         nv_msi_workaround(np);
3860
3861         spin_lock(&np->lock);
3862         np->intr_test = 1;
3863         spin_unlock(&np->lock);
3864
3865         dprintk(KERN_DEBUG "%s: nv_nic_irq_test completed\n", dev->name);
3866
3867         return IRQ_RETVAL(1);
3868 }
3869
3870 static void set_msix_vector_map(struct net_device *dev, u32 vector, u32 irqmask)
3871 {
3872         u8 __iomem *base = get_hwbase(dev);
3873         int i;
3874         u32 msixmap = 0;
3875
3876         /* Each interrupt bit can be mapped to a MSIX vector (4 bits).
3877          * MSIXMap0 represents the first 8 interrupts and MSIXMap1 represents
3878          * the remaining 8 interrupts.
3879          */
3880         for (i = 0; i < 8; i++) {
3881                 if ((irqmask >> i) & 0x1) {
3882                         msixmap |= vector << (i << 2);
3883                 }
3884         }
3885         writel(readl(base + NvRegMSIXMap0) | msixmap, base + NvRegMSIXMap0);
3886
3887         msixmap = 0;
3888         for (i = 0; i < 8; i++) {
3889                 if ((irqmask >> (i + 8)) & 0x1) {
3890                         msixmap |= vector << (i << 2);
3891                 }
3892         }
3893         writel(readl(base + NvRegMSIXMap1) | msixmap, base + NvRegMSIXMap1);
3894 }
3895
3896 static int nv_request_irq(struct net_device *dev, int intr_test)
3897 {
3898         struct fe_priv *np = get_nvpriv(dev);
3899         u8 __iomem *base = get_hwbase(dev);
3900         int ret = 1;
3901         int i;
3902         irqreturn_t (*handler)(int foo, void *data);
3903
3904         if (intr_test) {
3905                 handler = nv_nic_irq_test;
3906         } else {
3907                 if (nv_optimized(np))
3908                         handler = nv_nic_irq_optimized;
3909                 else
3910                         handler = nv_nic_irq;
3911         }
3912
3913         if (np->msi_flags & NV_MSI_X_CAPABLE) {
3914                 for (i = 0; i < (np->msi_flags & NV_MSI_X_VECTORS_MASK); i++) {
3915                         np->msi_x_entry[i].entry = i;
3916                 }
3917                 if ((ret = pci_enable_msix(np->pci_dev, np->msi_x_entry, (np->msi_flags & NV_MSI_X_VECTORS_MASK))) == 0) {
3918                         np->msi_flags |= NV_MSI_X_ENABLED;
3919                         if (optimization_mode == NV_OPTIMIZATION_MODE_THROUGHPUT && !intr_test) {
3920                                 /* Request irq for rx handling */
3921                                 if (request_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector, &nv_nic_irq_rx, IRQF_SHARED, dev->name, dev) != 0) {
3922                                         printk(KERN_INFO "forcedeth: request_irq failed for rx %d\n", ret);
3923                                         pci_disable_msix(np->pci_dev);
3924                                         np->msi_flags &= ~NV_MSI_X_ENABLED;
3925                                         goto out_err;
3926                                 }
3927                                 /* Request irq for tx handling */
3928                                 if (request_irq(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector, &nv_nic_irq_tx, IRQF_SHARED, dev->name, dev) != 0) {
3929                                         printk(KERN_INFO "forcedeth: request_irq failed for tx %d\n", ret);
3930                                         pci_disable_msix(np->pci_dev);
3931                                         np->msi_flags &= ~NV_MSI_X_ENABLED;
3932                                         goto out_free_rx;
3933                                 }
3934                                 /* Request irq for link and timer handling */
3935                                 if (request_irq(np->msi_x_entry[NV_MSI_X_VECTOR_OTHER].vector, &nv_nic_irq_other, IRQF_SHARED, dev->name, dev) != 0) {
3936                                         printk(KERN_INFO "forcedeth: request_irq failed for link %d\n", ret);
3937                                         pci_disable_msix(np->pci_dev);
3938                                         np->msi_flags &= ~NV_MSI_X_ENABLED;
3939                                         goto out_free_tx;
3940                                 }
3941                                 /* map interrupts to their respective vector */
3942                                 writel(0, base + NvRegMSIXMap0);
3943                                 writel(0, base + NvRegMSIXMap1);
3944                                 set_msix_vector_map(dev, NV_MSI_X_VECTOR_RX, NVREG_IRQ_RX_ALL);
3945                                 set_msix_vector_map(dev, NV_MSI_X_VECTOR_TX, NVREG_IRQ_TX_ALL);
3946                                 set_msix_vector_map(dev, NV_MSI_X_VECTOR_OTHER, NVREG_IRQ_OTHER);
3947                         } else {
3948                                 /* Request irq for all interrupts */
3949                                 if (request_irq(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector, handler, IRQF_SHARED, dev->name, dev) != 0) {
3950                                         printk(KERN_INFO "forcedeth: request_irq failed %d\n", ret);
3951                                         pci_disable_msix(np->pci_dev);
3952                                         np->msi_flags &= ~NV_MSI_X_ENABLED;
3953                                         goto out_err;
3954                                 }
3955
3956                                 /* map interrupts to vector 0 */
3957                                 writel(0, base + NvRegMSIXMap0);
3958                                 writel(0, base + NvRegMSIXMap1);
3959                         }
3960                 }
3961         }
3962         if (ret != 0 && np->msi_flags & NV_MSI_CAPABLE) {
3963                 if ((ret = pci_enable_msi(np->pci_dev)) == 0) {
3964                         np->msi_flags |= NV_MSI_ENABLED;
3965                         dev->irq = np->pci_dev->irq;
3966                         if (request_irq(np->pci_dev->irq, handler, IRQF_SHARED, dev->name, dev) != 0) {
3967                                 printk(KERN_INFO "forcedeth: request_irq failed %d\n", ret);
3968                                 pci_disable_msi(np->pci_dev);
3969                                 np->msi_flags &= ~NV_MSI_ENABLED;
3970                                 dev->irq = np->pci_dev->irq;
3971                                 goto out_err;
3972                         }
3973
3974                         /* map interrupts to vector 0 */
3975                         writel(0, base + NvRegMSIMap0);
3976                         writel(0, base + NvRegMSIMap1);
3977                         /* enable msi vector 0 */
3978                         writel(NVREG_MSI_VECTOR_0_ENABLED, base + NvRegMSIIrqMask);
3979                 }
3980         }
3981         if (ret != 0) {
3982                 if (request_irq(np->pci_dev->irq, handler, IRQF_SHARED, dev->name, dev) != 0)
3983                         goto out_err;
3984
3985         }
3986
3987         return 0;
3988 out_free_tx:
3989         free_irq(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector, dev);
3990 out_free_rx:
3991         free_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector, dev);
3992 out_err:
3993         return 1;
3994 }
3995
3996 static void nv_free_irq(struct net_device *dev)
3997 {
3998         struct fe_priv *np = get_nvpriv(dev);
3999         int i;
4000
4001         if (np->msi_flags & NV_MSI_X_ENABLED) {
4002                 for (i = 0; i < (np->msi_flags & NV_MSI_X_VECTORS_MASK); i++) {
4003                         free_irq(np->msi_x_entry[i].vector, dev);
4004                 }
4005                 pci_disable_msix(np->pci_dev);
4006                 np->msi_flags &= ~NV_MSI_X_ENABLED;
4007         } else {
4008                 free_irq(np->pci_dev->irq, dev);
4009                 if (np->msi_flags & NV_MSI_ENABLED) {
4010                         pci_disable_msi(np->pci_dev);
4011                         np->msi_flags &= ~NV_MSI_ENABLED;
4012                 }
4013         }
4014 }
4015
4016 static void nv_do_nic_poll(unsigned long data)
4017 {
4018         struct net_device *dev = (struct net_device *) data;
4019         struct fe_priv *np = netdev_priv(dev);
4020         u8 __iomem *base = get_hwbase(dev);
4021         u32 mask = 0;
4022
4023         /*
4024          * First disable irq(s) and then
4025          * reenable interrupts on the nic, we have to do this before calling
4026          * nv_nic_irq because that may decide to do otherwise
4027          */
4028
4029         if (!using_multi_irqs(dev)) {
4030                 if (np->msi_flags & NV_MSI_X_ENABLED)
4031                         disable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector);
4032                 else
4033                         disable_irq_lockdep(np->pci_dev->irq);
4034                 mask = np->irqmask;
4035         } else {
4036                 if (np->nic_poll_irq & NVREG_IRQ_RX_ALL) {
4037                         disable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector);
4038                         mask |= NVREG_IRQ_RX_ALL;
4039                 }
4040                 if (np->nic_poll_irq & NVREG_IRQ_TX_ALL) {
4041                         disable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector);
4042                         mask |= NVREG_IRQ_TX_ALL;
4043                 }
4044                 if (np->nic_poll_irq & NVREG_IRQ_OTHER) {
4045                         disable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_OTHER].vector);
4046                         mask |= NVREG_IRQ_OTHER;
4047                 }
4048         }
4049         np->nic_poll_irq = 0;
4050
4051         /* disable_irq() contains synchronize_irq, thus no irq handler can run now */
4052
4053         if (np->recover_error) {
4054                 np->recover_error = 0;
4055                 printk(KERN_INFO "forcedeth: MAC in recoverable error state\n");
4056                 if (netif_running(dev)) {
4057                         netif_tx_lock_bh(dev);
4058                         netif_addr_lock(dev);
4059                         spin_lock(&np->lock);
4060                         /* stop engines */
4061                         nv_stop_rxtx(dev);
4062                         nv_txrx_reset(dev);
4063                         /* drain rx queue */
4064                         nv_drain_rxtx(dev);
4065                         /* reinit driver view of the rx queue */
4066                         set_bufsize(dev);
4067                         if (nv_init_ring(dev)) {
4068                                 if (!np->in_shutdown)
4069                                         mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
4070                         }
4071                         /* reinit nic view of the rx queue */
4072                         writel(np->rx_buf_sz, base + NvRegOffloadConfig);
4073                         setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING);
4074                         writel( ((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT),
4075                                 base + NvRegRingSizes);
4076                         pci_push(base);
4077                         writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
4078                         pci_push(base);
4079
4080                         /* restart rx engine */
4081                         nv_start_rxtx(dev);
4082                         spin_unlock(&np->lock);
4083                         netif_addr_unlock(dev);
4084                         netif_tx_unlock_bh(dev);
4085                 }
4086         }
4087
4088
4089         writel(mask, base + NvRegIrqMask);
4090         pci_push(base);
4091
4092         if (!using_multi_irqs(dev)) {
4093                 if (nv_optimized(np))
4094                         nv_nic_irq_optimized(0, dev);
4095                 else
4096                         nv_nic_irq(0, dev);
4097                 if (np->msi_flags & NV_MSI_X_ENABLED)
4098                         enable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector);
4099                 else
4100                         enable_irq_lockdep(np->pci_dev->irq);
4101         } else {
4102                 if (np->nic_poll_irq & NVREG_IRQ_RX_ALL) {
4103                         nv_nic_irq_rx(0, dev);
4104                         enable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector);
4105                 }
4106                 if (np->nic_poll_irq & NVREG_IRQ_TX_ALL) {
4107                         nv_nic_irq_tx(0, dev);
4108                         enable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_TX].vector);
4109                 }
4110                 if (np->nic_poll_irq & NVREG_IRQ_OTHER) {
4111                         nv_nic_irq_other(0, dev);
4112                         enable_irq_lockdep(np->msi_x_entry[NV_MSI_X_VECTOR_OTHER].vector);
4113                 }
4114         }
4115 }
4116
4117 #ifdef CONFIG_NET_POLL_CONTROLLER
4118 static void nv_poll_controller(struct net_device *dev)
4119 {
4120         nv_do_nic_poll((unsigned long) dev);
4121 }
4122 #endif
4123
4124 static void nv_do_stats_poll(unsigned long data)
4125 {
4126         struct net_device *dev = (struct net_device *) data;
4127         struct fe_priv *np = netdev_priv(dev);
4128
4129         nv_get_hw_stats(dev);
4130
4131         if (!np->in_shutdown)
4132                 mod_timer(&np->stats_poll,
4133                         round_jiffies(jiffies + STATS_INTERVAL));
4134 }
4135
4136 static void nv_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
4137 {
4138         struct fe_priv *np = netdev_priv(dev);
4139         strcpy(info->driver, DRV_NAME);
4140         strcpy(info->version, FORCEDETH_VERSION);
4141         strcpy(info->bus_info, pci_name(np->pci_dev));
4142 }
4143
4144 static void nv_get_wol(struct net_device *dev, struct ethtool_wolinfo *wolinfo)
4145 {
4146         struct fe_priv *np = netdev_priv(dev);
4147         wolinfo->supported = WAKE_MAGIC;
4148
4149         spin_lock_irq(&np->lock);
4150         if (np->wolenabled)
4151                 wolinfo->wolopts = WAKE_MAGIC;
4152         spin_unlock_irq(&np->lock);
4153 }
4154
4155 static int nv_set_wol(struct net_device *dev, struct ethtool_wolinfo *wolinfo)
4156 {
4157         struct fe_priv *np = netdev_priv(dev);
4158         u8 __iomem *base = get_hwbase(dev);
4159         u32 flags = 0;
4160
4161         if (wolinfo->wolopts == 0) {
4162                 np->wolenabled = 0;
4163         } else if (wolinfo->wolopts & WAKE_MAGIC) {
4164                 np->wolenabled = 1;
4165                 flags = NVREG_WAKEUPFLAGS_ENABLE;
4166         }
4167         if (netif_running(dev)) {
4168                 spin_lock_irq(&np->lock);
4169                 writel(flags, base + NvRegWakeUpFlags);
4170                 spin_unlock_irq(&np->lock);
4171         }
4172         return 0;
4173 }
4174
4175 static int nv_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
4176 {
4177         struct fe_priv *np = netdev_priv(dev);
4178         int adv;
4179
4180         spin_lock_irq(&np->lock);
4181         ecmd->port = PORT_MII;
4182         if (!netif_running(dev)) {
4183                 /* We do not track link speed / duplex setting if the
4184                  * interface is disabled. Force a link check */
4185                 if (nv_update_linkspeed(dev)) {
4186                         if (!netif_carrier_ok(dev))
4187                                 netif_carrier_on(dev);
4188                 } else {
4189                         if (netif_carrier_ok(dev))
4190                                 netif_carrier_off(dev);
4191                 }
4192         }
4193
4194         if (netif_carrier_ok(dev)) {
4195                 switch(np->linkspeed & (NVREG_LINKSPEED_MASK)) {
4196                 case NVREG_LINKSPEED_10:
4197                         ecmd->speed = SPEED_10;
4198                         break;
4199                 case NVREG_LINKSPEED_100:
4200                         ecmd->speed = SPEED_100;
4201                         break;
4202                 case NVREG_LINKSPEED_1000:
4203                         ecmd->speed = SPEED_1000;
4204                         break;
4205                 }
4206                 ecmd->duplex = DUPLEX_HALF;
4207                 if (np->duplex)
4208                         ecmd->duplex = DUPLEX_FULL;
4209         } else {
4210                 ecmd->speed = -1;
4211                 ecmd->duplex = -1;
4212         }
4213
4214         ecmd->autoneg = np->autoneg;
4215
4216         ecmd->advertising = ADVERTISED_MII;
4217         if (np->autoneg) {
4218                 ecmd->advertising |= ADVERTISED_Autoneg;
4219                 adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ);
4220                 if (adv & ADVERTISE_10HALF)
4221                         ecmd->advertising |= ADVERTISED_10baseT_Half;
4222                 if (adv & ADVERTISE_10FULL)
4223                         ecmd->advertising |= ADVERTISED_10baseT_Full;
4224                 if (adv & ADVERTISE_100HALF)
4225                         ecmd->advertising |= ADVERTISED_100baseT_Half;
4226                 if (adv & ADVERTISE_100FULL)
4227                         ecmd->advertising |= ADVERTISED_100baseT_Full;
4228                 if (np->gigabit == PHY_GIGABIT) {
4229                         adv = mii_rw(dev, np->phyaddr, MII_CTRL1000, MII_READ);
4230                         if (adv & ADVERTISE_1000FULL)
4231                                 ecmd->advertising |= ADVERTISED_1000baseT_Full;
4232                 }
4233         }
4234         ecmd->supported = (SUPPORTED_Autoneg |
4235                 SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full |
4236                 SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full |
4237                 SUPPORTED_MII);
4238         if (np->gigabit == PHY_GIGABIT)
4239                 ecmd->supported |= SUPPORTED_1000baseT_Full;
4240
4241         ecmd->phy_address = np->phyaddr;
4242         ecmd->transceiver = XCVR_EXTERNAL;
4243
4244         /* ignore maxtxpkt, maxrxpkt for now */
4245         spin_unlock_irq(&np->lock);
4246         return 0;
4247 }
4248
4249 static int nv_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
4250 {
4251         struct fe_priv *np = netdev_priv(dev);
4252
4253         if (ecmd->port != PORT_MII)
4254                 return -EINVAL;
4255         if (ecmd->transceiver != XCVR_EXTERNAL)
4256                 return -EINVAL;
4257         if (ecmd->phy_address != np->phyaddr) {
4258                 /* TODO: support switching between multiple phys. Should be
4259                  * trivial, but not enabled due to lack of test hardware. */
4260                 return -EINVAL;
4261         }
4262         if (ecmd->autoneg == AUTONEG_ENABLE) {
4263                 u32 mask;
4264
4265                 mask = ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full |
4266                           ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full;
4267                 if (np->gigabit == PHY_GIGABIT)
4268                         mask |= ADVERTISED_1000baseT_Full;
4269
4270                 if ((ecmd->advertising & mask) == 0)
4271                         return -EINVAL;
4272
4273         } else if (ecmd->autoneg == AUTONEG_DISABLE) {
4274                 /* Note: autonegotiation disable, speed 1000 intentionally
4275                  * forbidden - noone should need that. */
4276
4277                 if (ecmd->speed != SPEED_10 && ecmd->speed != SPEED_100)
4278                         return -EINVAL;
4279                 if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL)
4280                         return -EINVAL;
4281         } else {
4282                 return -EINVAL;
4283         }
4284
4285         netif_carrier_off(dev);
4286         if (netif_running(dev)) {
4287                 unsigned long flags;
4288
4289                 nv_disable_irq(dev);
4290                 netif_tx_lock_bh(dev);
4291                 netif_addr_lock(dev);
4292                 /* with plain spinlock lockdep complains */
4293                 spin_lock_irqsave(&np->lock, flags);
4294                 /* stop engines */
4295                 /* FIXME:
4296                  * this can take some time, and interrupts are disabled
4297                  * due to spin_lock_irqsave, but let's hope no daemon
4298                  * is going to change the settings very often...
4299                  * Worst case:
4300                  * NV_RXSTOP_DELAY1MAX + NV_TXSTOP_DELAY1MAX
4301                  * + some minor delays, which is up to a second approximately
4302                  */
4303                 nv_stop_rxtx(dev);
4304                 spin_unlock_irqrestore(&np->lock, flags);
4305                 netif_addr_unlock(dev);
4306                 netif_tx_unlock_bh(dev);
4307         }
4308
4309         if (ecmd->autoneg == AUTONEG_ENABLE) {
4310                 int adv, bmcr;
4311
4312                 np->autoneg = 1;
4313
4314                 /* advertise only what has been requested */
4315                 adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ);
4316                 adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4 | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
4317                 if (ecmd->advertising & ADVERTISED_10baseT_Half)
4318                         adv |= ADVERTISE_10HALF;
4319                 if (ecmd->advertising & ADVERTISED_10baseT_Full)
4320                         adv |= ADVERTISE_10FULL;
4321                 if (ecmd->advertising & ADVERTISED_100baseT_Half)
4322                         adv |= ADVERTISE_100HALF;
4323                 if (ecmd->advertising & ADVERTISED_100baseT_Full)
4324                         adv |= ADVERTISE_100FULL;
4325                 if (np->pause_flags & NV_PAUSEFRAME_RX_REQ)  /* for rx we set both advertisments but disable tx pause */
4326                         adv |=  ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
4327                 if (np->pause_flags & NV_PAUSEFRAME_TX_REQ)
4328                         adv |=  ADVERTISE_PAUSE_ASYM;
4329                 mii_rw(dev, np->phyaddr, MII_ADVERTISE, adv);
4330
4331                 if (np->gigabit == PHY_GIGABIT) {
4332                         adv = mii_rw(dev, np->phyaddr, MII_CTRL1000, MII_READ);
4333                         adv &= ~ADVERTISE_1000FULL;
4334                         if (ecmd->advertising & ADVERTISED_1000baseT_Full)
4335                                 adv |= ADVERTISE_1000FULL;
4336                         mii_rw(dev, np->phyaddr, MII_CTRL1000, adv);
4337                 }
4338
4339                 if (netif_running(dev))
4340                         printk(KERN_INFO "%s: link down.\n", dev->name);
4341                 bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
4342                 if (np->phy_model == PHY_MODEL_MARVELL_E3016) {
4343                         bmcr |= BMCR_ANENABLE;
4344                         /* reset the phy in order for settings to stick,
4345                          * and cause autoneg to start */
4346                         if (phy_reset(dev, bmcr)) {
4347                                 printk(KERN_INFO "%s: phy reset failed\n", dev->name);
4348                                 return -EINVAL;
4349                         }
4350                 } else {
4351                         bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART);
4352                         mii_rw(dev, np->phyaddr, MII_BMCR, bmcr);
4353                 }
4354         } else {
4355                 int adv, bmcr;
4356
4357                 np->autoneg = 0;
4358
4359                 adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ);
4360                 adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4 | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
4361                 if (ecmd->speed == SPEED_10 && ecmd->duplex == DUPLEX_HALF)
4362                         adv |= ADVERTISE_10HALF;
4363                 if (ecmd->speed == SPEED_10 && ecmd->duplex == DUPLEX_FULL)
4364                         adv |= ADVERTISE_10FULL;
4365                 if (ecmd->speed == SPEED_100 && ecmd->duplex == DUPLEX_HALF)
4366                         adv |= ADVERTISE_100HALF;
4367                 if (ecmd->speed == SPEED_100 && ecmd->duplex == DUPLEX_FULL)
4368                         adv |= ADVERTISE_100FULL;
4369                 np->pause_flags &= ~(NV_PAUSEFRAME_AUTONEG|NV_PAUSEFRAME_RX_ENABLE|NV_PAUSEFRAME_TX_ENABLE);
4370                 if (np->pause_flags & NV_PAUSEFRAME_RX_REQ) {/* for rx we set both advertisments but disable tx pause */
4371                         adv |=  ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
4372                         np->pause_flags |= NV_PAUSEFRAME_RX_ENABLE;
4373                 }
4374                 if (np->pause_flags & NV_PAUSEFRAME_TX_REQ) {
4375                         adv |=  ADVERTISE_PAUSE_ASYM;
4376                         np->pause_flags |= NV_PAUSEFRAME_TX_ENABLE;
4377                 }
4378                 mii_rw(dev, np->phyaddr, MII_ADVERTISE, adv);
4379                 np->fixed_mode = adv;
4380
4381                 if (np->gigabit == PHY_GIGABIT) {
4382                         adv = mii_rw(dev, np->phyaddr, MII_CTRL1000, MII_READ);
4383                         adv &= ~ADVERTISE_1000FULL;
4384                         mii_rw(dev, np->phyaddr, MII_CTRL1000, adv);
4385                 }
4386
4387                 bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
4388                 bmcr &= ~(BMCR_ANENABLE|BMCR_SPEED100|BMCR_SPEED1000|BMCR_FULLDPLX);
4389                 if (np->fixed_mode & (ADVERTISE_10FULL|ADVERTISE_100FULL))
4390                         bmcr |= BMCR_FULLDPLX;
4391                 if (np->fixed_mode & (ADVERTISE_100HALF|ADVERTISE_100FULL))
4392                         bmcr |= BMCR_SPEED100;
4393                 if (np->phy_oui == PHY_OUI_MARVELL) {
4394                         /* reset the phy in order for forced mode settings to stick */
4395                         if (phy_reset(dev, bmcr)) {
4396                                 printk(KERN_INFO "%s: phy reset failed\n", dev->name);
4397                                 return -EINVAL;
4398                         }
4399                 } else {
4400                         mii_rw(dev, np->phyaddr, MII_BMCR, bmcr);
4401                         if (netif_running(dev)) {
4402                                 /* Wait a bit and then reconfigure the nic. */
4403                                 udelay(10);
4404                                 nv_linkchange(dev);
4405                         }
4406                 }
4407         }
4408
4409         if (netif_running(dev)) {
4410                 nv_start_rxtx(dev);
4411                 nv_enable_irq(dev);
4412         }
4413
4414         return 0;
4415 }
4416
4417 #define FORCEDETH_REGS_VER      1
4418
4419 static int nv_get_regs_len(struct net_device *dev)
4420 {
4421         struct fe_priv *np = netdev_priv(dev);
4422         return np->register_size;
4423 }
4424
4425 static void nv_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *buf)
4426 {
4427         struct fe_priv *np = netdev_priv(dev);
4428         u8 __iomem *base = get_hwbase(dev);
4429         u32 *rbuf = buf;
4430         int i;
4431
4432         regs->version = FORCEDETH_REGS_VER;
4433         spin_lock_irq(&np->lock);
4434         for (i = 0;i <= np->register_size/sizeof(u32); i++)
4435                 rbuf[i] = readl(base + i*sizeof(u32));
4436         spin_unlock_irq(&np->lock);
4437 }
4438
4439 static int nv_nway_reset(struct net_device *dev)
4440 {
4441         struct fe_priv *np = netdev_priv(dev);
4442         int ret;
4443
4444         if (np->autoneg) {
4445                 int bmcr;
4446
4447                 netif_carrier_off(dev);
4448                 if (netif_running(dev)) {
4449                         nv_disable_irq(dev);
4450                         netif_tx_lock_bh(dev);
4451                         netif_addr_lock(dev);
4452                         spin_lock(&np->lock);
4453                         /* stop engines */
4454                         nv_stop_rxtx(dev);
4455                         spin_unlock(&np->lock);
4456                         netif_addr_unlock(dev);
4457                         netif_tx_unlock_bh(dev);
4458                         printk(KERN_INFO "%s: link down.\n", dev->name);
4459                 }
4460
4461                 bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
4462                 if (np->phy_model == PHY_MODEL_MARVELL_E3016) {
4463                         bmcr |= BMCR_ANENABLE;
4464                         /* reset the phy in order for settings to stick*/
4465                         if (phy_reset(dev, bmcr)) {
4466                                 printk(KERN_INFO "%s: phy reset failed\n", dev->name);
4467                                 return -EINVAL;
4468                         }
4469                 } else {
4470                         bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART);
4471                         mii_rw(dev, np->phyaddr, MII_BMCR, bmcr);
4472                 }
4473
4474                 if (netif_running(dev)) {
4475                         nv_start_rxtx(dev);
4476                         nv_enable_irq(dev);
4477                 }
4478                 ret = 0;
4479         } else {
4480                 ret = -EINVAL;
4481         }
4482
4483         return ret;
4484 }
4485
4486 static int nv_set_tso(struct net_device *dev, u32 value)
4487 {
4488         struct fe_priv *np = netdev_priv(dev);
4489
4490         if ((np->driver_data & DEV_HAS_CHECKSUM))
4491                 return ethtool_op_set_tso(dev, value);
4492         else
4493                 return -EOPNOTSUPP;
4494 }
4495
4496 static void nv_get_ringparam(struct net_device *dev, struct ethtool_ringparam* ring)
4497 {
4498         struct fe_priv *np = netdev_priv(dev);
4499
4500         ring->rx_max_pending = (np->desc_ver == DESC_VER_1) ? RING_MAX_DESC_VER_1 : RING_MAX_DESC_VER_2_3;
4501         ring->rx_mini_max_pending = 0;
4502         ring->rx_jumbo_max_pending = 0;
4503         ring->tx_max_pending = (np->desc_ver == DESC_VER_1) ? RING_MAX_DESC_VER_1 : RING_MAX_DESC_VER_2_3;
4504
4505         ring->rx_pending = np->rx_ring_size;
4506         ring->rx_mini_pending = 0;
4507         ring->rx_jumbo_pending = 0;
4508         ring->tx_pending = np->tx_ring_size;
4509 }
4510
4511 static int nv_set_ringparam(struct net_device *dev, struct ethtool_ringparam* ring)
4512 {
4513         struct fe_priv *np = netdev_priv(dev);
4514         u8 __iomem *base = get_hwbase(dev);
4515         u8 *rxtx_ring, *rx_skbuff, *tx_skbuff;
4516         dma_addr_t ring_addr;
4517
4518         if (ring->rx_pending < RX_RING_MIN ||
4519             ring->tx_pending < TX_RING_MIN ||
4520             ring->rx_mini_pending != 0 ||
4521             ring->rx_jumbo_pending != 0 ||
4522             (np->desc_ver == DESC_VER_1 &&
4523              (ring->rx_pending > RING_MAX_DESC_VER_1 ||
4524               ring->tx_pending > RING_MAX_DESC_VER_1)) ||
4525             (np->desc_ver != DESC_VER_1 &&
4526              (ring->rx_pending > RING_MAX_DESC_VER_2_3 ||
4527               ring->tx_pending > RING_MAX_DESC_VER_2_3))) {
4528                 return -EINVAL;
4529         }
4530
4531         /* allocate new rings */
4532         if (!nv_optimized(np)) {
4533                 rxtx_ring = pci_alloc_consistent(np->pci_dev,
4534                                             sizeof(struct ring_desc) * (ring->rx_pending + ring->tx_pending),
4535                                             &ring_addr);
4536         } else {
4537                 rxtx_ring = pci_alloc_consistent(np->pci_dev,
4538                                             sizeof(struct ring_desc_ex) * (ring->rx_pending + ring->tx_pending),
4539                                             &ring_addr);
4540         }
4541         rx_skbuff = kmalloc(sizeof(struct nv_skb_map) * ring->rx_pending, GFP_KERNEL);
4542         tx_skbuff = kmalloc(sizeof(struct nv_skb_map) * ring->tx_pending, GFP_KERNEL);
4543         if (!rxtx_ring || !rx_skbuff || !tx_skbuff) {
4544                 /* fall back to old rings */
4545                 if (!nv_optimized(np)) {
4546                         if (rxtx_ring)
4547                                 pci_free_consistent(np->pci_dev, sizeof(struct ring_desc) * (ring->rx_pending + ring->tx_pending),
4548                                                     rxtx_ring, ring_addr);
4549                 } else {
4550                         if (rxtx_ring)
4551                                 pci_free_consistent(np->pci_dev, sizeof(struct ring_desc_ex) * (ring->rx_pending + ring->tx_pending),
4552                                                     rxtx_ring, ring_addr);
4553                 }
4554                 if (rx_skbuff)
4555                         kfree(rx_skbuff);
4556                 if (tx_skbuff)
4557                         kfree(tx_skbuff);
4558                 goto exit;
4559         }
4560
4561         if (netif_running(dev)) {
4562                 nv_disable_irq(dev);
4563                 netif_tx_lock_bh(dev);
4564                 netif_addr_lock(dev);
4565                 spin_lock(&np->lock);
4566                 /* stop engines */
4567                 nv_stop_rxtx(dev);
4568                 nv_txrx_reset(dev);
4569                 /* drain queues */
4570                 nv_drain_rxtx(dev);
4571                 /* delete queues */
4572                 free_rings(dev);
4573         }
4574
4575         /* set new values */
4576         np->rx_ring_size = ring->rx_pending;
4577         np->tx_ring_size = ring->tx_pending;
4578
4579         if (!nv_optimized(np)) {
4580                 np->rx_ring.orig = (struct ring_desc*)rxtx_ring;
4581                 np->tx_ring.orig = &np->rx_ring.orig[np->rx_ring_size];
4582         } else {
4583                 np->rx_ring.ex = (struct ring_desc_ex*)rxtx_ring;
4584                 np->tx_ring.ex = &np->rx_ring.ex[np->rx_ring_size];
4585         }
4586         np->rx_skb = (struct nv_skb_map*)rx_skbuff;
4587         np->tx_skb = (struct nv_skb_map*)tx_skbuff;
4588         np->ring_addr = ring_addr;
4589
4590         memset(np->rx_skb, 0, sizeof(struct nv_skb_map) * np->rx_ring_size);
4591         memset(np->tx_skb, 0, sizeof(struct nv_skb_map) * np->tx_ring_size);
4592
4593         if (netif_running(dev)) {
4594                 /* reinit driver view of the queues */
4595                 set_bufsize(dev);
4596                 if (nv_init_ring(dev)) {
4597                         if (!np->in_shutdown)
4598                                 mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
4599                 }
4600
4601                 /* reinit nic view of the queues */
4602                 writel(np->rx_buf_sz, base + NvRegOffloadConfig);
4603                 setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING);
4604                 writel( ((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT),
4605                         base + NvRegRingSizes);
4606                 pci_push(base);
4607                 writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
4608                 pci_push(base);
4609
4610                 /* restart engines */
4611                 nv_start_rxtx(dev);
4612                 spin_unlock(&np->lock);
4613                 netif_addr_unlock(dev);
4614                 netif_tx_unlock_bh(dev);
4615                 nv_enable_irq(dev);
4616         }
4617         return 0;
4618 exit:
4619         return -ENOMEM;
4620 }
4621
4622 static void nv_get_pauseparam(struct net_device *dev, struct ethtool_pauseparam* pause)
4623 {
4624         struct fe_priv *np = netdev_priv(dev);
4625
4626         pause->autoneg = (np->pause_flags & NV_PAUSEFRAME_AUTONEG) != 0;
4627         pause->rx_pause = (np->pause_flags & NV_PAUSEFRAME_RX_ENABLE) != 0;
4628         pause->tx_pause = (np->pause_flags & NV_PAUSEFRAME_TX_ENABLE) != 0;
4629 }
4630
4631 static int nv_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam* pause)
4632 {
4633         struct fe_priv *np = netdev_priv(dev);
4634         int adv, bmcr;
4635
4636         if ((!np->autoneg && np->duplex == 0) ||
4637             (np->autoneg && !pause->autoneg && np->duplex == 0)) {
4638                 printk(KERN_INFO "%s: can not set pause settings when forced link is in half duplex.\n",
4639                        dev->name);
4640                 return -EINVAL;
4641         }
4642         if (pause->tx_pause && !(np->pause_flags & NV_PAUSEFRAME_TX_CAPABLE)) {
4643                 printk(KERN_INFO "%s: hardware does not support tx pause frames.\n", dev->name);
4644                 return -EINVAL;
4645         }
4646
4647         netif_carrier_off(dev);
4648         if (netif_running(dev)) {
4649                 nv_disable_irq(dev);
4650                 netif_tx_lock_bh(dev);
4651                 netif_addr_lock(dev);
4652                 spin_lock(&np->lock);
4653                 /* stop engines */
4654                 nv_stop_rxtx(dev);
4655                 spin_unlock(&np->lock);
4656                 netif_addr_unlock(dev);
4657                 netif_tx_unlock_bh(dev);
4658         }
4659
4660         np->pause_flags &= ~(NV_PAUSEFRAME_RX_REQ|NV_PAUSEFRAME_TX_REQ);
4661         if (pause->rx_pause)
4662                 np->pause_flags |= NV_PAUSEFRAME_RX_REQ;
4663         if (pause->tx_pause)
4664                 np->pause_flags |= NV_PAUSEFRAME_TX_REQ;
4665
4666         if (np->autoneg && pause->autoneg) {
4667                 np->pause_flags |= NV_PAUSEFRAME_AUTONEG;
4668
4669                 adv = mii_rw(dev, np->phyaddr, MII_ADVERTISE, MII_READ);
4670                 adv &= ~(ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
4671                 if (np->pause_flags & NV_PAUSEFRAME_RX_REQ) /* for rx we set both advertisments but disable tx pause */
4672                         adv |=  ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
4673                 if (np->pause_flags & NV_PAUSEFRAME_TX_REQ)
4674                         adv |=  ADVERTISE_PAUSE_ASYM;
4675                 mii_rw(dev, np->phyaddr, MII_ADVERTISE, adv);
4676
4677                 if (netif_running(dev))
4678                         printk(KERN_INFO "%s: link down.\n", dev->name);
4679                 bmcr = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
4680                 bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART);
4681                 mii_rw(dev, np->phyaddr, MII_BMCR, bmcr);
4682         } else {
4683                 np->pause_flags &= ~(NV_PAUSEFRAME_AUTONEG|NV_PAUSEFRAME_RX_ENABLE|NV_PAUSEFRAME_TX_ENABLE);
4684                 if (pause->rx_pause)
4685                         np->pause_flags |= NV_PAUSEFRAME_RX_ENABLE;
4686                 if (pause->tx_pause)
4687                         np->pause_flags |= NV_PAUSEFRAME_TX_ENABLE;
4688
4689                 if (!netif_running(dev))
4690                         nv_update_linkspeed(dev);
4691                 else
4692                         nv_update_pause(dev, np->pause_flags);
4693         }
4694
4695         if (netif_running(dev)) {
4696                 nv_start_rxtx(dev);
4697                 nv_enable_irq(dev);
4698         }
4699         return 0;
4700 }
4701
4702 static u32 nv_get_rx_csum(struct net_device *dev)
4703 {
4704         struct fe_priv *np = netdev_priv(dev);
4705         return (np->rx_csum) != 0;
4706 }
4707
4708 static int nv_set_rx_csum(struct net_device *dev, u32 data)
4709 {
4710         struct fe_priv *np = netdev_priv(dev);
4711         u8 __iomem *base = get_hwbase(dev);
4712         int retcode = 0;
4713
4714         if (np->driver_data & DEV_HAS_CHECKSUM) {
4715                 if (data) {
4716                         np->rx_csum = 1;
4717                         np->txrxctl_bits |= NVREG_TXRXCTL_RXCHECK;
4718                 } else {
4719                         np->rx_csum = 0;
4720                         /* vlan is dependent on rx checksum offload */
4721                         if (!(np->vlanctl_bits & NVREG_VLANCONTROL_ENABLE))
4722                                 np->txrxctl_bits &= ~NVREG_TXRXCTL_RXCHECK;
4723                 }
4724                 if (netif_running(dev)) {
4725                         spin_lock_irq(&np->lock);
4726                         writel(np->txrxctl_bits, base + NvRegTxRxControl);
4727                         spin_unlock_irq(&np->lock);
4728                 }
4729         } else {
4730                 return -EINVAL;
4731         }
4732
4733         return retcode;
4734 }
4735
4736 static int nv_set_tx_csum(struct net_device *dev, u32 data)
4737 {
4738         struct fe_priv *np = netdev_priv(dev);
4739
4740         if (np->driver_data & DEV_HAS_CHECKSUM)
4741                 return ethtool_op_set_tx_hw_csum(dev, data);
4742         else
4743                 return -EOPNOTSUPP;
4744 }
4745
4746 static int nv_set_sg(struct net_device *dev, u32 data)
4747 {
4748         struct fe_priv *np = netdev_priv(dev);
4749
4750         if (np->driver_data & DEV_HAS_CHECKSUM)
4751                 return ethtool_op_set_sg(dev, data);
4752         else
4753                 return -EOPNOTSUPP;
4754 }
4755
4756 static int nv_get_sset_count(struct net_device *dev, int sset)
4757 {
4758         struct fe_priv *np = netdev_priv(dev);
4759
4760         switch (sset) {
4761         case ETH_SS_TEST:
4762                 if (np->driver_data & DEV_HAS_TEST_EXTENDED)
4763                         return NV_TEST_COUNT_EXTENDED;
4764                 else
4765                         return NV_TEST_COUNT_BASE;
4766         case ETH_SS_STATS:
4767                 if (np->driver_data & DEV_HAS_STATISTICS_V1)
4768                         return NV_DEV_STATISTICS_V1_COUNT;
4769                 else if (np->driver_data & DEV_HAS_STATISTICS_V2)
4770                         return NV_DEV_STATISTICS_V2_COUNT;
4771                 else if (np->driver_data & DEV_HAS_STATISTICS_V3)
4772                         return NV_DEV_STATISTICS_V3_COUNT;
4773                 else
4774                         return 0;
4775         default:
4776                 return -EOPNOTSUPP;
4777         }
4778 }
4779
4780 static void nv_get_ethtool_stats(struct net_device *dev, struct ethtool_stats *estats, u64 *buffer)
4781 {
4782         struct fe_priv *np = netdev_priv(dev);
4783
4784         /* update stats */
4785         nv_do_stats_poll((unsigned long)dev);
4786
4787         memcpy(buffer, &np->estats, nv_get_sset_count(dev, ETH_SS_STATS)*sizeof(u64));
4788 }
4789
4790 static int nv_link_test(struct net_device *dev)
4791 {
4792         struct fe_priv *np = netdev_priv(dev);
4793         int mii_status;
4794
4795         mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ);
4796         mii_status = mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ);
4797
4798         /* check phy link status */
4799         if (!(mii_status & BMSR_LSTATUS))
4800                 return 0;
4801         else
4802                 return 1;
4803 }
4804
4805 static int nv_register_test(struct net_device *dev)
4806 {
4807         u8 __iomem *base = get_hwbase(dev);
4808         int i = 0;
4809         u32 orig_read, new_read;
4810
4811         do {
4812                 orig_read = readl(base + nv_registers_test[i].reg);
4813
4814                 /* xor with mask to toggle bits */
4815                 orig_read ^= nv_registers_test[i].mask;
4816
4817                 writel(orig_read, base + nv_registers_test[i].reg);
4818
4819                 new_read = readl(base + nv_registers_test[i].reg);
4820
4821                 if ((new_read & nv_registers_test[i].mask) != (orig_read & nv_registers_test[i].mask))
4822                         return 0;
4823
4824                 /* restore original value */
4825                 orig_read ^= nv_registers_test[i].mask;
4826                 writel(orig_read, base + nv_registers_test[i].reg);
4827
4828         } while (nv_registers_test[++i].reg != 0);
4829
4830         return 1;
4831 }
4832
4833 static int nv_interrupt_test(struct net_device *dev)
4834 {
4835         struct fe_priv *np = netdev_priv(dev);
4836         u8 __iomem *base = get_hwbase(dev);
4837         int ret = 1;
4838         int testcnt;
4839         u32 save_msi_flags, save_poll_interval = 0;
4840
4841         if (netif_running(dev)) {
4842                 /* free current irq */
4843                 nv_free_irq(dev);
4844                 save_poll_interval = readl(base+NvRegPollingInterval);
4845         }
4846
4847         /* flag to test interrupt handler */
4848         np->intr_test = 0;
4849
4850         /* setup test irq */
4851         save_msi_flags = np->msi_flags;
4852         np->msi_flags &= ~NV_MSI_X_VECTORS_MASK;
4853         np->msi_flags |= 0x001; /* setup 1 vector */
4854         if (nv_request_irq(dev, 1))
4855                 return 0;
4856
4857         /* setup timer interrupt */
4858         writel(NVREG_POLL_DEFAULT_CPU, base + NvRegPollingInterval);
4859         writel(NVREG_UNKSETUP6_VAL, base + NvRegUnknownSetupReg6);
4860
4861         nv_enable_hw_interrupts(dev, NVREG_IRQ_TIMER);
4862
4863         /* wait for at least one interrupt */
4864         msleep(100);
4865
4866         spin_lock_irq(&np->lock);
4867
4868         /* flag should be set within ISR */
4869         testcnt = np->intr_test;
4870         if (!testcnt)
4871                 ret = 2;
4872
4873         nv_disable_hw_interrupts(dev, NVREG_IRQ_TIMER);
4874         if (!(np->msi_flags & NV_MSI_X_ENABLED))
4875                 writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus);
4876         else
4877                 writel(NVREG_IRQSTAT_MASK, base + NvRegMSIXIrqStatus);
4878
4879         spin_unlock_irq(&np->lock);
4880
4881         nv_free_irq(dev);
4882
4883         np->msi_flags = save_msi_flags;
4884
4885         if (netif_running(dev)) {
4886                 writel(save_poll_interval, base + NvRegPollingInterval);
4887                 writel(NVREG_UNKSETUP6_VAL, base + NvRegUnknownSetupReg6);
4888                 /* restore original irq */
4889                 if (nv_request_irq(dev, 0))
4890                         return 0;
4891         }
4892
4893         return ret;
4894 }
4895
4896 static int nv_loopback_test(struct net_device *dev)
4897 {
4898         struct fe_priv *np = netdev_priv(dev);
4899         u8 __iomem *base = get_hwbase(dev);
4900         struct sk_buff *tx_skb, *rx_skb;
4901         dma_addr_t test_dma_addr;
4902         u32 tx_flags_extra = (np->desc_ver == DESC_VER_1 ? NV_TX_LASTPACKET : NV_TX2_LASTPACKET);
4903         u32 flags;
4904         int len, i, pkt_len;
4905         u8 *pkt_data;
4906         u32 filter_flags = 0;
4907         u32 misc1_flags = 0;
4908         int ret = 1;
4909
4910         if (netif_running(dev)) {
4911                 nv_disable_irq(dev);
4912                 filter_flags = readl(base + NvRegPacketFilterFlags);
4913                 misc1_flags = readl(base + NvRegMisc1);
4914         } else {
4915                 nv_txrx_reset(dev);
4916         }
4917
4918         /* reinit driver view of the rx queue */
4919         set_bufsize(dev);
4920         nv_init_ring(dev);
4921
4922         /* setup hardware for loopback */
4923         writel(NVREG_MISC1_FORCE, base + NvRegMisc1);
4924         writel(NVREG_PFF_ALWAYS | NVREG_PFF_LOOPBACK, base + NvRegPacketFilterFlags);
4925
4926         /* reinit nic view of the rx queue */
4927         writel(np->rx_buf_sz, base + NvRegOffloadConfig);
4928         setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING);
4929         writel( ((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT),
4930                 base + NvRegRingSizes);
4931         pci_push(base);
4932
4933         /* restart rx engine */
4934         nv_start_rxtx(dev);
4935
4936         /* setup packet for tx */
4937         pkt_len = ETH_DATA_LEN;
4938         tx_skb = dev_alloc_skb(pkt_len);
4939         if (!tx_skb) {
4940                 printk(KERN_ERR "dev_alloc_skb() failed during loopback test"
4941                          " of %s\n", dev->name);
4942                 ret = 0;
4943                 goto out;
4944         }
4945         test_dma_addr = pci_map_single(np->pci_dev, tx_skb->data,
4946                                        skb_tailroom(tx_skb),
4947                                        PCI_DMA_FROMDEVICE);
4948         pkt_data = skb_put(tx_skb, pkt_len);
4949         for (i = 0; i < pkt_len; i++)
4950                 pkt_data[i] = (u8)(i & 0xff);
4951
4952         if (!nv_optimized(np)) {
4953                 np->tx_ring.orig[0].buf = cpu_to_le32(test_dma_addr);
4954                 np->tx_ring.orig[0].flaglen = cpu_to_le32((pkt_len-1) | np->tx_flags | tx_flags_extra);
4955         } else {
4956                 np->tx_ring.ex[0].bufhigh = cpu_to_le32(dma_high(test_dma_addr));
4957                 np->tx_ring.ex[0].buflow = cpu_to_le32(dma_low(test_dma_addr));
4958                 np->tx_ring.ex[0].flaglen = cpu_to_le32((pkt_len-1) | np->tx_flags | tx_flags_extra);
4959         }
4960         writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
4961         pci_push(get_hwbase(dev));
4962
4963         msleep(500);
4964
4965         /* check for rx of the packet */
4966         if (!nv_optimized(np)) {
4967                 flags = le32_to_cpu(np->rx_ring.orig[0].flaglen);
4968                 len = nv_descr_getlength(&np->rx_ring.orig[0], np->desc_ver);
4969
4970         } else {
4971                 flags = le32_to_cpu(np->rx_ring.ex[0].flaglen);
4972                 len = nv_descr_getlength_ex(&np->rx_ring.ex[0], np->desc_ver);
4973         }
4974
4975         if (flags & NV_RX_AVAIL) {
4976                 ret = 0;
4977         } else if (np->desc_ver == DESC_VER_1) {
4978                 if (flags & NV_RX_ERROR)
4979                         ret = 0;
4980         } else {
4981                 if (flags & NV_RX2_ERROR) {
4982                         ret = 0;
4983                 }
4984         }
4985
4986         if (ret) {
4987                 if (len != pkt_len) {
4988                         ret = 0;
4989                         dprintk(KERN_DEBUG "%s: loopback len mismatch %d vs %d\n",
4990                                 dev->name, len, pkt_len);
4991                 } else {
4992                         rx_skb = np->rx_skb[0].skb;
4993                         for (i = 0; i < pkt_len; i++) {
4994                                 if (rx_skb->data[i] != (u8)(i & 0xff)) {
4995                                         ret = 0;
4996                                         dprintk(KERN_DEBUG "%s: loopback pattern check failed on byte %d\n",
4997                                                 dev->name, i);
4998                                         break;
4999                                 }
5000                         }
5001                 }
5002         } else {
5003                 dprintk(KERN_DEBUG "%s: loopback - did not receive test packet\n", dev->name);
5004         }
5005
5006         pci_unmap_page(np->pci_dev, test_dma_addr,
5007                        (skb_end_pointer(tx_skb) - tx_skb->data),
5008                        PCI_DMA_TODEVICE);
5009         dev_kfree_skb_any(tx_skb);
5010  out:
5011         /* stop engines */
5012         nv_stop_rxtx(dev);
5013         nv_txrx_reset(dev);
5014         /* drain rx queue */
5015         nv_drain_rxtx(dev);
5016
5017         if (netif_running(dev)) {
5018                 writel(misc1_flags, base + NvRegMisc1);
5019                 writel(filter_flags, base + NvRegPacketFilterFlags);
5020                 nv_enable_irq(dev);
5021         }
5022
5023         return ret;
5024 }
5025
5026 static void nv_self_test(struct net_device *dev, struct ethtool_test *test, u64 *buffer)
5027 {
5028         struct fe_priv *np = netdev_priv(dev);
5029         u8 __iomem *base = get_hwbase(dev);
5030         int result;
5031         memset(buffer, 0, nv_get_sset_count(dev, ETH_SS_TEST)*sizeof(u64));
5032
5033         if (!nv_link_test(dev)) {
5034                 test->flags |= ETH_TEST_FL_FAILED;
5035                 buffer[0] = 1;
5036         }
5037
5038         if (test->flags & ETH_TEST_FL_OFFLINE) {
5039                 if (netif_running(dev)) {
5040                         netif_stop_queue(dev);
5041 #ifdef CONFIG_FORCEDETH_NAPI
5042                         napi_disable(&np->napi);
5043 #endif
5044                         netif_tx_lock_bh(dev);
5045                         netif_addr_lock(dev);
5046                         spin_lock_irq(&np->lock);
5047                         nv_disable_hw_interrupts(dev, np->irqmask);
5048                         if (!(np->msi_flags & NV_MSI_X_ENABLED)) {
5049                                 writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus);
5050                         } else {
5051                                 writel(NVREG_IRQSTAT_MASK, base + NvRegMSIXIrqStatus);
5052                         }
5053                         /* stop engines */
5054                         nv_stop_rxtx(dev);
5055                         nv_txrx_reset(dev);
5056                         /* drain rx queue */
5057                         nv_drain_rxtx(dev);
5058                         spin_unlock_irq(&np->lock);
5059                         netif_addr_unlock(dev);
5060                         netif_tx_unlock_bh(dev);
5061                 }
5062
5063                 if (!nv_register_test(dev)) {
5064                         test->flags |= ETH_TEST_FL_FAILED;
5065                         buffer[1] = 1;
5066                 }
5067
5068                 result = nv_interrupt_test(dev);
5069                 if (result != 1) {
5070                         test->flags |= ETH_TEST_FL_FAILED;
5071                         buffer[2] = 1;
5072                 }
5073                 if (result == 0) {
5074                         /* bail out */
5075                         return;
5076                 }
5077
5078                 if (!nv_loopback_test(dev)) {
5079                         test->flags |= ETH_TEST_FL_FAILED;
5080                         buffer[3] = 1;
5081                 }
5082
5083                 if (netif_running(dev)) {
5084                         /* reinit driver view of the rx queue */
5085                         set_bufsize(dev);
5086                         if (nv_init_ring(dev)) {
5087                                 if (!np->in_shutdown)
5088                                         mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
5089                         }
5090                         /* reinit nic view of the rx queue */
5091                         writel(np->rx_buf_sz, base + NvRegOffloadConfig);
5092                         setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING);
5093                         writel( ((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT),
5094                                 base + NvRegRingSizes);
5095                         pci_push(base);
5096                         writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
5097                         pci_push(base);
5098                         /* restart rx engine */
5099                         nv_start_rxtx(dev);
5100                         netif_start_queue(dev);
5101 #ifdef CONFIG_FORCEDETH_NAPI
5102                         napi_enable(&np->napi);
5103 #endif
5104                         nv_enable_hw_interrupts(dev, np->irqmask);
5105                 }
5106         }
5107 }
5108
5109 static void nv_get_strings(struct net_device *dev, u32 stringset, u8 *buffer)
5110 {
5111         switch (stringset) {
5112         case ETH_SS_STATS:
5113                 memcpy(buffer, &nv_estats_str, nv_get_sset_count(dev, ETH_SS_STATS)*sizeof(struct nv_ethtool_str));
5114                 break;
5115         case ETH_SS_TEST:
5116                 memcpy(buffer, &nv_etests_str, nv_get_sset_count(dev, ETH_SS_TEST)*sizeof(struct nv_ethtool_str));
5117                 break;
5118         }
5119 }
5120
5121 static const struct ethtool_ops ops = {
5122         .get_drvinfo = nv_get_drvinfo,
5123         .get_link = ethtool_op_get_link,
5124         .get_wol = nv_get_wol,
5125         .set_wol = nv_set_wol,
5126         .get_settings = nv_get_settings,
5127         .set_settings = nv_set_settings,
5128         .get_regs_len = nv_get_regs_len,
5129         .get_regs = nv_get_regs,
5130         .nway_reset = nv_nway_reset,
5131         .set_tso = nv_set_tso,
5132         .get_ringparam = nv_get_ringparam,
5133         .set_ringparam = nv_set_ringparam,
5134         .get_pauseparam = nv_get_pauseparam,
5135         .set_pauseparam = nv_set_pauseparam,
5136         .get_rx_csum = nv_get_rx_csum,
5137         .set_rx_csum = nv_set_rx_csum,
5138         .set_tx_csum = nv_set_tx_csum,
5139         .set_sg = nv_set_sg,
5140         .get_strings = nv_get_strings,
5141         .get_ethtool_stats = nv_get_ethtool_stats,
5142         .get_sset_count = nv_get_sset_count,
5143         .self_test = nv_self_test,
5144 };
5145
5146 static void nv_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
5147 {
5148         struct fe_priv *np = get_nvpriv(dev);
5149
5150         spin_lock_irq(&np->lock);
5151
5152         /* save vlan group */
5153         np->vlangrp = grp;
5154
5155         if (grp) {
5156                 /* enable vlan on MAC */
5157                 np->txrxctl_bits |= NVREG_TXRXCTL_VLANSTRIP | NVREG_TXRXCTL_VLANINS;
5158         } else {
5159                 /* disable vlan on MAC */
5160                 np->txrxctl_bits &= ~NVREG_TXRXCTL_VLANSTRIP;
5161                 np->txrxctl_bits &= ~NVREG_TXRXCTL_VLANINS;
5162         }
5163
5164         writel(np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
5165
5166         spin_unlock_irq(&np->lock);
5167 }
5168
5169 /* The mgmt unit and driver use a semaphore to access the phy during init */
5170 static int nv_mgmt_acquire_sema(struct net_device *dev)
5171 {
5172         u8 __iomem *base = get_hwbase(dev);
5173         int i;
5174         u32 tx_ctrl, mgmt_sema;
5175
5176         for (i = 0; i < 10; i++) {
5177                 mgmt_sema = readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_MGMT_SEMA_MASK;
5178                 if (mgmt_sema == NVREG_XMITCTL_MGMT_SEMA_FREE)
5179                         break;
5180                 msleep(500);
5181         }
5182
5183         if (mgmt_sema != NVREG_XMITCTL_MGMT_SEMA_FREE)
5184                 return 0;
5185
5186         for (i = 0; i < 2; i++) {
5187                 tx_ctrl = readl(base + NvRegTransmitterControl);
5188                 tx_ctrl |= NVREG_XMITCTL_HOST_SEMA_ACQ;
5189                 writel(tx_ctrl, base + NvRegTransmitterControl);
5190
5191                 /* verify that semaphore was acquired */
5192                 tx_ctrl = readl(base + NvRegTransmitterControl);
5193                 if (((tx_ctrl & NVREG_XMITCTL_HOST_SEMA_MASK) == NVREG_XMITCTL_HOST_SEMA_ACQ) &&
5194                     ((tx_ctrl & NVREG_XMITCTL_MGMT_SEMA_MASK) == NVREG_XMITCTL_MGMT_SEMA_FREE))
5195                         return 1;
5196                 else
5197                         udelay(50);
5198         }
5199
5200         return 0;
5201 }
5202
5203 static int nv_open(struct net_device *dev)
5204 {
5205         struct fe_priv *np = netdev_priv(dev);
5206         u8 __iomem *base = get_hwbase(dev);
5207         int ret = 1;
5208         int oom, i;
5209         u32 low;
5210
5211         dprintk(KERN_DEBUG "nv_open: begin\n");
5212
5213         /* power up phy */
5214         mii_rw(dev, np->phyaddr, MII_BMCR,
5215                mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ) & ~BMCR_PDOWN);
5216
5217         /* erase previous misconfiguration */
5218         if (np->driver_data & DEV_HAS_POWER_CNTRL)
5219                 nv_mac_reset(dev);
5220         writel(NVREG_MCASTADDRA_FORCE, base + NvRegMulticastAddrA);
5221         writel(0, base + NvRegMulticastAddrB);
5222         writel(NVREG_MCASTMASKA_NONE, base + NvRegMulticastMaskA);
5223         writel(NVREG_MCASTMASKB_NONE, base + NvRegMulticastMaskB);
5224         writel(0, base + NvRegPacketFilterFlags);
5225
5226         writel(0, base + NvRegTransmitterControl);
5227         writel(0, base + NvRegReceiverControl);
5228
5229         writel(0, base + NvRegAdapterControl);
5230
5231         if (np->pause_flags & NV_PAUSEFRAME_TX_CAPABLE)
5232                 writel(NVREG_TX_PAUSEFRAME_DISABLE,  base + NvRegTxPauseFrame);
5233
5234         /* initialize descriptor rings */
5235         set_bufsize(dev);
5236         oom = nv_init_ring(dev);
5237
5238         writel(0, base + NvRegLinkSpeed);
5239         writel(readl(base + NvRegTransmitPoll) & NVREG_TRANSMITPOLL_MAC_ADDR_REV, base + NvRegTransmitPoll);
5240         nv_txrx_reset(dev);
5241         writel(0, base + NvRegUnknownSetupReg6);
5242
5243         np->in_shutdown = 0;
5244
5245         /* give hw rings */
5246         setup_hw_rings(dev, NV_SETUP_RX_RING | NV_SETUP_TX_RING);
5247         writel( ((np->rx_ring_size-1) << NVREG_RINGSZ_RXSHIFT) + ((np->tx_ring_size-1) << NVREG_RINGSZ_TXSHIFT),
5248                 base + NvRegRingSizes);
5249
5250         writel(np->linkspeed, base + NvRegLinkSpeed);
5251         if (np->desc_ver == DESC_VER_1)
5252                 writel(NVREG_TX_WM_DESC1_DEFAULT, base + NvRegTxWatermark);
5253         else
5254                 writel(NVREG_TX_WM_DESC2_3_DEFAULT, base + NvRegTxWatermark);
5255         writel(np->txrxctl_bits, base + NvRegTxRxControl);
5256         writel(np->vlanctl_bits, base + NvRegVlanControl);
5257         pci_push(base);
5258         writel(NVREG_TXRXCTL_BIT1|np->txrxctl_bits, base + NvRegTxRxControl);
5259         reg_delay(dev, NvRegUnknownSetupReg5, NVREG_UNKSETUP5_BIT31, NVREG_UNKSETUP5_BIT31,
5260                         NV_SETUP5_DELAY, NV_SETUP5_DELAYMAX,
5261                         KERN_INFO "open: SetupReg5, Bit 31 remained off\n");
5262
5263         writel(0, base + NvRegMIIMask);
5264         writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus);
5265         writel(NVREG_MIISTAT_MASK_ALL, base + NvRegMIIStatus);
5266
5267         writel(NVREG_MISC1_FORCE | NVREG_MISC1_HD, base + NvRegMisc1);
5268         writel(readl(base + NvRegTransmitterStatus), base + NvRegTransmitterStatus);
5269         writel(NVREG_PFF_ALWAYS, base + NvRegPacketFilterFlags);
5270         writel(np->rx_buf_sz, base + NvRegOffloadConfig);
5271
5272         writel(readl(base + NvRegReceiverStatus), base + NvRegReceiverStatus);
5273
5274         get_random_bytes(&low, sizeof(low));
5275         low &= NVREG_SLOTTIME_MASK;
5276         if (np->desc_ver == DESC_VER_1) {
5277                 writel(low|NVREG_SLOTTIME_DEFAULT, base + NvRegSlotTime);
5278         } else {
5279                 if (!(np->driver_data & DEV_HAS_GEAR_MODE)) {
5280                         /* setup legacy backoff */
5281                         writel(NVREG_SLOTTIME_LEGBF_ENABLED|NVREG_SLOTTIME_10_100_FULL|low, base + NvRegSlotTime);
5282                 } else {
5283                         writel(NVREG_SLOTTIME_10_100_FULL, base + NvRegSlotTime);
5284                         nv_gear_backoff_reseed(dev);
5285                 }
5286         }
5287         writel(NVREG_TX_DEFERRAL_DEFAULT, base + NvRegTxDeferral);
5288         writel(NVREG_RX_DEFERRAL_DEFAULT, base + NvRegRxDeferral);
5289         if (poll_interval == -1) {
5290                 if (optimization_mode == NV_OPTIMIZATION_MODE_THROUGHPUT)
5291                         writel(NVREG_POLL_DEFAULT_THROUGHPUT, base + NvRegPollingInterval);
5292                 else
5293                         writel(NVREG_POLL_DEFAULT_CPU, base + NvRegPollingInterval);
5294         }
5295         else
5296                 writel(poll_interval & 0xFFFF, base + NvRegPollingInterval);
5297         writel(NVREG_UNKSETUP6_VAL, base + NvRegUnknownSetupReg6);
5298         writel((np->phyaddr << NVREG_ADAPTCTL_PHYSHIFT)|NVREG_ADAPTCTL_PHYVALID|NVREG_ADAPTCTL_RUNNING,
5299                         base + NvRegAdapterControl);
5300         writel(NVREG_MIISPEED_BIT8|NVREG_MIIDELAY, base + NvRegMIISpeed);
5301         writel(NVREG_MII_LINKCHANGE, base + NvRegMIIMask);
5302         if (np->wolenabled)
5303                 writel(NVREG_WAKEUPFLAGS_ENABLE , base + NvRegWakeUpFlags);
5304
5305         i = readl(base + NvRegPowerState);
5306         if ( (i & NVREG_POWERSTATE_POWEREDUP) == 0)
5307                 writel(NVREG_POWERSTATE_POWEREDUP|i, base + NvRegPowerState);
5308
5309         pci_push(base);
5310         udelay(10);
5311         writel(readl(base + NvRegPowerState) | NVREG_POWERSTATE_VALID, base + NvRegPowerState);
5312
5313         nv_disable_hw_interrupts(dev, np->irqmask);
5314         pci_push(base);
5315         writel(NVREG_MIISTAT_MASK_ALL, base + NvRegMIIStatus);
5316         writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus);
5317         pci_push(base);
5318
5319         if (nv_request_irq(dev, 0)) {
5320                 goto out_drain;
5321         }
5322
5323         /* ask for interrupts */
5324         nv_enable_hw_interrupts(dev, np->irqmask);
5325
5326         spin_lock_irq(&np->lock);
5327         writel(NVREG_MCASTADDRA_FORCE, base + NvRegMulticastAddrA);
5328         writel(0, base + NvRegMulticastAddrB);
5329         writel(NVREG_MCASTMASKA_NONE, base + NvRegMulticastMaskA);
5330         writel(NVREG_MCASTMASKB_NONE, base + NvRegMulticastMaskB);
5331         writel(NVREG_PFF_ALWAYS|NVREG_PFF_MYADDR, base + NvRegPacketFilterFlags);
5332         /* One manual link speed update: Interrupts are enabled, future link
5333          * speed changes cause interrupts and are handled by nv_link_irq().
5334          */
5335         {
5336                 u32 miistat;
5337                 miistat = readl(base + NvRegMIIStatus);
5338                 writel(NVREG_MIISTAT_MASK_ALL, base + NvRegMIIStatus);
5339                 dprintk(KERN_INFO "startup: got 0x%08x.\n", miistat);
5340         }
5341         /* set linkspeed to invalid value, thus force nv_update_linkspeed
5342          * to init hw */
5343         np->linkspeed = 0;
5344         ret = nv_update_linkspeed(dev);
5345         nv_start_rxtx(dev);
5346         netif_start_queue(dev);
5347 #ifdef CONFIG_FORCEDETH_NAPI
5348         napi_enable(&np->napi);
5349 #endif
5350
5351         if (ret) {
5352                 netif_carrier_on(dev);
5353         } else {
5354                 printk(KERN_INFO "%s: no link during initialization.\n", dev->name);
5355                 netif_carrier_off(dev);
5356         }
5357         if (oom)
5358                 mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
5359
5360         /* start statistics timer */
5361         if (np->driver_data & (DEV_HAS_STATISTICS_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_STATISTICS_V3))
5362                 mod_timer(&np->stats_poll,
5363                         round_jiffies(jiffies + STATS_INTERVAL));
5364
5365         spin_unlock_irq(&np->lock);
5366
5367         return 0;
5368 out_drain:
5369         nv_drain_rxtx(dev);
5370         return ret;
5371 }
5372
5373 static int nv_close(struct net_device *dev)
5374 {
5375         struct fe_priv *np = netdev_priv(dev);
5376         u8 __iomem *base;
5377
5378         spin_lock_irq(&np->lock);
5379         np->in_shutdown = 1;
5380         spin_unlock_irq(&np->lock);
5381 #ifdef CONFIG_FORCEDETH_NAPI
5382         napi_disable(&np->napi);
5383 #endif
5384         synchronize_irq(np->pci_dev->irq);
5385
5386         del_timer_sync(&np->oom_kick);
5387         del_timer_sync(&np->nic_poll);
5388         del_timer_sync(&np->stats_poll);
5389
5390         netif_stop_queue(dev);
5391         spin_lock_irq(&np->lock);
5392         nv_stop_rxtx(dev);
5393         nv_txrx_reset(dev);
5394
5395         /* disable interrupts on the nic or we will lock up */
5396         base = get_hwbase(dev);
5397         nv_disable_hw_interrupts(dev, np->irqmask);
5398         pci_push(base);
5399         dprintk(KERN_INFO "%s: Irqmask is zero again\n", dev->name);
5400
5401         spin_unlock_irq(&np->lock);
5402
5403         nv_free_irq(dev);
5404
5405         nv_drain_rxtx(dev);
5406
5407         if (np->wolenabled) {
5408                 writel(NVREG_PFF_ALWAYS|NVREG_PFF_MYADDR, base + NvRegPacketFilterFlags);
5409                 nv_start_rx(dev);
5410         } else {
5411                 /* power down phy */
5412                 mii_rw(dev, np->phyaddr, MII_BMCR,
5413                        mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ)|BMCR_PDOWN);
5414         }
5415
5416         /* FIXME: power down nic */
5417
5418         return 0;
5419 }
5420
5421 static const struct net_device_ops nv_netdev_ops = {
5422         .ndo_open               = nv_open,
5423         .ndo_stop               = nv_close,
5424         .ndo_get_stats          = nv_get_stats,
5425         .ndo_start_xmit         = nv_start_xmit,
5426         .ndo_tx_timeout         = nv_tx_timeout,
5427         .ndo_change_mtu         = nv_change_mtu,
5428         .ndo_validate_addr      = eth_validate_addr,
5429         .ndo_set_mac_address    = nv_set_mac_address,
5430         .ndo_set_multicast_list = nv_set_multicast,
5431         .ndo_vlan_rx_register   = nv_vlan_rx_register,
5432 #ifdef CONFIG_NET_POLL_CONTROLLER
5433         .ndo_poll_controller    = nv_poll_controller,
5434 #endif
5435 };
5436
5437 static const struct net_device_ops nv_netdev_ops_optimized = {
5438         .ndo_open               = nv_open,
5439         .ndo_stop               = nv_close,
5440         .ndo_get_stats          = nv_get_stats,
5441         .ndo_start_xmit         = nv_start_xmit_optimized,
5442         .ndo_tx_timeout         = nv_tx_timeout,
5443         .ndo_change_mtu         = nv_change_mtu,
5444         .ndo_validate_addr      = eth_validate_addr,
5445         .ndo_set_mac_address    = nv_set_mac_address,
5446         .ndo_set_multicast_list = nv_set_multicast,
5447         .ndo_vlan_rx_register   = nv_vlan_rx_register,
5448 #ifdef CONFIG_NET_POLL_CONTROLLER
5449         .ndo_poll_controller    = nv_poll_controller,
5450 #endif
5451 };
5452
5453 static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_id *id)
5454 {
5455         struct net_device *dev;
5456         struct fe_priv *np;
5457         unsigned long addr;
5458         u8 __iomem *base;
5459         int err, i;
5460         u32 powerstate, txreg;
5461         u32 phystate_orig = 0, phystate;
5462         int phyinitialized = 0;
5463         static int printed_version;
5464
5465         if (!printed_version++)
5466                 printk(KERN_INFO "%s: Reverse Engineered nForce ethernet"
5467                        " driver. Version %s.\n", DRV_NAME, FORCEDETH_VERSION);
5468
5469         dev = alloc_etherdev(sizeof(struct fe_priv));
5470         err = -ENOMEM;
5471         if (!dev)
5472                 goto out;
5473
5474         np = netdev_priv(dev);
5475         np->dev = dev;
5476         np->pci_dev = pci_dev;
5477         spin_lock_init(&np->lock);
5478         SET_NETDEV_DEV(dev, &pci_dev->dev);
5479
5480         init_timer(&np->oom_kick);
5481         np->oom_kick.data = (unsigned long) dev;
5482         np->oom_kick.function = &nv_do_rx_refill;       /* timer handler */
5483         init_timer(&np->nic_poll);
5484         np->nic_poll.data = (unsigned long) dev;
5485         np->nic_poll.function = &nv_do_nic_poll;        /* timer handler */
5486         init_timer(&np->stats_poll);
5487         np->stats_poll.data = (unsigned long) dev;
5488         np->stats_poll.function = &nv_do_stats_poll;    /* timer handler */
5489
5490         err = pci_enable_device(pci_dev);
5491         if (err)
5492                 goto out_free;
5493
5494         pci_set_master(pci_dev);
5495
5496         err = pci_request_regions(pci_dev, DRV_NAME);
5497         if (err < 0)
5498                 goto out_disable;
5499
5500         if (id->driver_data & (DEV_HAS_VLAN|DEV_HAS_MSI_X|DEV_HAS_POWER_CNTRL|DEV_HAS_STATISTICS_V2|DEV_HAS_STATISTICS_V3))
5501                 np->register_size = NV_PCI_REGSZ_VER3;
5502         else if (id->driver_data & DEV_HAS_STATISTICS_V1)
5503                 np->register_size = NV_PCI_REGSZ_VER2;
5504         else
5505                 np->register_size = NV_PCI_REGSZ_VER1;
5506
5507         err = -EINVAL;
5508         addr = 0;
5509         for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
5510                 dprintk(KERN_DEBUG "%s: resource %d start %p len %ld flags 0x%08lx.\n",
5511                                 pci_name(pci_dev), i, (void*)pci_resource_start(pci_dev, i),
5512                                 pci_resource_len(pci_dev, i),
5513                                 pci_resource_flags(pci_dev, i));
5514                 if (pci_resource_flags(pci_dev, i) & IORESOURCE_MEM &&
5515                                 pci_resource_len(pci_dev, i) >= np->register_size) {
5516                         addr = pci_resource_start(pci_dev, i);
5517                         break;
5518                 }
5519         }
5520         if (i == DEVICE_COUNT_RESOURCE) {
5521                 dev_printk(KERN_INFO, &pci_dev->dev,
5522                            "Couldn't find register window\n");
5523                 goto out_relreg;
5524         }
5525
5526         /* copy of driver data */
5527         np->driver_data = id->driver_data;
5528         /* copy of device id */
5529         np->device_id = id->device;
5530
5531         /* handle different descriptor versions */
5532         if (id->driver_data & DEV_HAS_HIGH_DMA) {
5533                 /* packet format 3: supports 40-bit addressing */
5534                 np->desc_ver = DESC_VER_3;
5535                 np->txrxctl_bits = NVREG_TXRXCTL_DESC_3;
5536                 if (dma_64bit) {
5537                         if (pci_set_dma_mask(pci_dev, DMA_39BIT_MASK))
5538                                 dev_printk(KERN_INFO, &pci_dev->dev,
5539                                         "64-bit DMA failed, using 32-bit addressing\n");
5540                         else
5541                                 dev->features |= NETIF_F_HIGHDMA;
5542                         if (pci_set_consistent_dma_mask(pci_dev, DMA_39BIT_MASK)) {
5543                                 dev_printk(KERN_INFO, &pci_dev->dev,
5544                                         "64-bit DMA (consistent) failed, using 32-bit ring buffers\n");
5545                         }
5546                 }
5547         } else if (id->driver_data & DEV_HAS_LARGEDESC) {
5548                 /* packet format 2: supports jumbo frames */
5549                 np->desc_ver = DESC_VER_2;
5550                 np->txrxctl_bits = NVREG_TXRXCTL_DESC_2;
5551         } else {
5552                 /* original packet format */
5553                 np->desc_ver = DESC_VER_1;
5554                 np->txrxctl_bits = NVREG_TXRXCTL_DESC_1;
5555         }
5556
5557         np->pkt_limit = NV_PKTLIMIT_1;
5558         if (id->driver_data & DEV_HAS_LARGEDESC)
5559                 np->pkt_limit = NV_PKTLIMIT_2;
5560
5561         if (id->driver_data & DEV_HAS_CHECKSUM) {
5562                 np->rx_csum = 1;
5563                 np->txrxctl_bits |= NVREG_TXRXCTL_RXCHECK;
5564                 dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG;
5565                 dev->features |= NETIF_F_TSO;
5566         }
5567
5568         np->vlanctl_bits = 0;
5569         if (id->driver_data & DEV_HAS_VLAN) {
5570                 np->vlanctl_bits = NVREG_VLANCONTROL_ENABLE;
5571                 dev->features |= NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_TX;
5572         }
5573
5574         np->msi_flags = 0;
5575         if ((id->driver_data & DEV_HAS_MSI) && msi) {
5576                 np->msi_flags |= NV_MSI_CAPABLE;
5577         }
5578         if ((id->driver_data & DEV_HAS_MSI_X) && msix) {
5579                 np->msi_flags |= NV_MSI_X_CAPABLE;
5580         }
5581
5582         np->pause_flags = NV_PAUSEFRAME_RX_CAPABLE | NV_PAUSEFRAME_RX_REQ | NV_PAUSEFRAME_AUTONEG;
5583         if ((id->driver_data & DEV_HAS_PAUSEFRAME_TX_V1) ||
5584             (id->driver_data & DEV_HAS_PAUSEFRAME_TX_V2) ||
5585             (id->driver_data & DEV_HAS_PAUSEFRAME_TX_V3)) {
5586                 np->pause_flags |= NV_PAUSEFRAME_TX_CAPABLE | NV_PAUSEFRAME_TX_REQ;
5587         }
5588
5589
5590         err = -ENOMEM;
5591         np->base = ioremap(addr, np->register_size);
5592         if (!np->base)
5593                 goto out_relreg;
5594         dev->base_addr = (unsigned long)np->base;
5595
5596         dev->irq = pci_dev->irq;
5597
5598         np->rx_ring_size = RX_RING_DEFAULT;
5599         np->tx_ring_size = TX_RING_DEFAULT;
5600
5601         if (!nv_optimized(np)) {
5602                 np->rx_ring.orig = pci_alloc_consistent(pci_dev,
5603                                         sizeof(struct ring_desc) * (np->rx_ring_size + np->tx_ring_size),
5604                                         &np->ring_addr);
5605                 if (!np->rx_ring.orig)
5606                         goto out_unmap;
5607                 np->tx_ring.orig = &np->rx_ring.orig[np->rx_ring_size];
5608         } else {
5609                 np->rx_ring.ex = pci_alloc_consistent(pci_dev,
5610                                         sizeof(struct ring_desc_ex) * (np->rx_ring_size + np->tx_ring_size),
5611                                         &np->ring_addr);
5612                 if (!np->rx_ring.ex)
5613                         goto out_unmap;
5614                 np->tx_ring.ex = &np->rx_ring.ex[np->rx_ring_size];
5615         }
5616         np->rx_skb = kcalloc(np->rx_ring_size, sizeof(struct nv_skb_map), GFP_KERNEL);
5617         np->tx_skb = kcalloc(np->tx_ring_size, sizeof(struct nv_skb_map), GFP_KERNEL);
5618         if (!np->rx_skb || !np->tx_skb)
5619                 goto out_freering;
5620
5621         if (!nv_optimized(np))
5622                 dev->netdev_ops = &nv_netdev_ops;
5623         else
5624                 dev->netdev_ops = &nv_netdev_ops_optimized;
5625
5626 #ifdef CONFIG_FORCEDETH_NAPI
5627         netif_napi_add(dev, &np->napi, nv_napi_poll, RX_WORK_PER_LOOP);
5628 #endif
5629         SET_ETHTOOL_OPS(dev, &ops);
5630         dev->watchdog_timeo = NV_WATCHDOG_TIMEO;
5631
5632         pci_set_drvdata(pci_dev, dev);
5633
5634         /* read the mac address */
5635         base = get_hwbase(dev);
5636         np->orig_mac[0] = readl(base + NvRegMacAddrA);
5637         np->orig_mac[1] = readl(base + NvRegMacAddrB);
5638
5639         /* check the workaround bit for correct mac address order */
5640         txreg = readl(base + NvRegTransmitPoll);
5641         if (id->driver_data & DEV_HAS_CORRECT_MACADDR) {
5642                 /* mac address is already in correct order */
5643                 dev->dev_addr[0] = (np->orig_mac[0] >>  0) & 0xff;
5644                 dev->dev_addr[1] = (np->orig_mac[0] >>  8) & 0xff;
5645                 dev->dev_addr[2] = (np->orig_mac[0] >> 16) & 0xff;
5646                 dev->dev_addr[3] = (np->orig_mac[0] >> 24) & 0xff;
5647                 dev->dev_addr[4] = (np->orig_mac[1] >>  0) & 0xff;
5648                 dev->dev_addr[5] = (np->orig_mac[1] >>  8) & 0xff;
5649         } else if (txreg & NVREG_TRANSMITPOLL_MAC_ADDR_REV) {
5650                 /* mac address is already in correct order */
5651                 dev->dev_addr[0] = (np->orig_mac[0] >>  0) & 0xff;
5652                 dev->dev_addr[1] = (np->orig_mac[0] >>  8) & 0xff;
5653                 dev->dev_addr[2] = (np->orig_mac[0] >> 16) & 0xff;
5654                 dev->dev_addr[3] = (np->orig_mac[0] >> 24) & 0xff;
5655                 dev->dev_addr[4] = (np->orig_mac[1] >>  0) & 0xff;
5656                 dev->dev_addr[5] = (np->orig_mac[1] >>  8) & 0xff;
5657                 /*
5658                  * Set orig mac address back to the reversed version.
5659                  * This flag will be cleared during low power transition.
5660                  * Therefore, we should always put back the reversed address.
5661                  */
5662                 np->orig_mac[0] = (dev->dev_addr[5] << 0) + (dev->dev_addr[4] << 8) +
5663                         (dev->dev_addr[3] << 16) + (dev->dev_addr[2] << 24);
5664                 np->orig_mac[1] = (dev->dev_addr[1] << 0) + (dev->dev_addr[0] << 8);
5665         } else {
5666                 /* need to reverse mac address to correct order */
5667                 dev->dev_addr[0] = (np->orig_mac[1] >>  8) & 0xff;
5668                 dev->dev_addr[1] = (np->orig_mac[1] >>  0) & 0xff;
5669                 dev->dev_addr[2] = (np->orig_mac[0] >> 24) & 0xff;
5670                 dev->dev_addr[3] = (np->orig_mac[0] >> 16) & 0xff;
5671                 dev->dev_addr[4] = (np->orig_mac[0] >>  8) & 0xff;
5672                 dev->dev_addr[5] = (np->orig_mac[0] >>  0) & 0xff;
5673                 writel(txreg|NVREG_TRANSMITPOLL_MAC_ADDR_REV, base + NvRegTransmitPoll);
5674                 printk(KERN_DEBUG "nv_probe: set workaround bit for reversed mac addr\n");
5675         }
5676         memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
5677
5678         if (!is_valid_ether_addr(dev->perm_addr)) {
5679                 /*
5680                  * Bad mac address. At least one bios sets the mac address
5681                  * to 01:23:45:67:89:ab
5682                  */
5683                 dev_printk(KERN_ERR, &pci_dev->dev,
5684                         "Invalid Mac address detected: %pM\n",
5685                         dev->dev_addr);
5686                 dev_printk(KERN_ERR, &pci_dev->dev,
5687                         "Please complain to your hardware vendor. Switching to a random MAC.\n");
5688                 dev->dev_addr[0] = 0x00;
5689                 dev->dev_addr[1] = 0x00;
5690                 dev->dev_addr[2] = 0x6c;
5691                 get_random_bytes(&dev->dev_addr[3], 3);
5692         }
5693
5694         dprintk(KERN_DEBUG "%s: MAC Address %pM\n",
5695                 pci_name(pci_dev), dev->dev_addr);
5696
5697         /* set mac address */
5698         nv_copy_mac_to_hw(dev);
5699
5700         /* Workaround current PCI init glitch:  wakeup bits aren't
5701          * being set from PCI PM capability.
5702          */
5703         device_init_wakeup(&pci_dev->dev, 1);
5704
5705         /* disable WOL */
5706         writel(0, base + NvRegWakeUpFlags);
5707         np->wolenabled = 0;
5708
5709         if (id->driver_data & DEV_HAS_POWER_CNTRL) {
5710
5711                 /* take phy and nic out of low power mode */
5712                 powerstate = readl(base + NvRegPowerState2);
5713                 powerstate &= ~NVREG_POWERSTATE2_POWERUP_MASK;
5714                 if ((id->device == PCI_DEVICE_ID_NVIDIA_NVENET_12 ||
5715                      id->device == PCI_DEVICE_ID_NVIDIA_NVENET_13) &&
5716                     pci_dev->revision >= 0xA3)
5717                         powerstate |= NVREG_POWERSTATE2_POWERUP_REV_A3;
5718                 writel(powerstate, base + NvRegPowerState2);
5719         }
5720
5721         if (np->desc_ver == DESC_VER_1) {
5722                 np->tx_flags = NV_TX_VALID;
5723         } else {
5724                 np->tx_flags = NV_TX2_VALID;
5725         }
5726         if (optimization_mode == NV_OPTIMIZATION_MODE_THROUGHPUT) {
5727                 np->irqmask = NVREG_IRQMASK_THROUGHPUT;
5728                 if (np->msi_flags & NV_MSI_X_CAPABLE) /* set number of vectors */
5729                         np->msi_flags |= 0x0003;
5730         } else {
5731                 np->irqmask = NVREG_IRQMASK_CPU;
5732                 if (np->msi_flags & NV_MSI_X_CAPABLE) /* set number of vectors */
5733                         np->msi_flags |= 0x0001;
5734         }
5735
5736         if (id->driver_data & DEV_NEED_TIMERIRQ)
5737                 np->irqmask |= NVREG_IRQ_TIMER;
5738         if (id->driver_data & DEV_NEED_LINKTIMER) {
5739                 dprintk(KERN_INFO "%s: link timer on.\n", pci_name(pci_dev));
5740                 np->need_linktimer = 1;
5741                 np->link_timeout = jiffies + LINK_TIMEOUT;
5742         } else {
5743                 dprintk(KERN_INFO "%s: link timer off.\n", pci_name(pci_dev));
5744                 np->need_linktimer = 0;
5745         }
5746
5747         /* Limit the number of tx's outstanding for hw bug */
5748         if (id->driver_data & DEV_NEED_TX_LIMIT) {
5749                 np->tx_limit = 1;
5750                 if ((id->device == PCI_DEVICE_ID_NVIDIA_NVENET_32 ||
5751                      id->device == PCI_DEVICE_ID_NVIDIA_NVENET_33 ||
5752                      id->device == PCI_DEVICE_ID_NVIDIA_NVENET_34 ||
5753                      id->device == PCI_DEVICE_ID_NVIDIA_NVENET_35 ||
5754                      id->device == PCI_DEVICE_ID_NVIDIA_NVENET_36 ||
5755                      id->device == PCI_DEVICE_ID_NVIDIA_NVENET_37 ||
5756                      id->device == PCI_DEVICE_ID_NVIDIA_NVENET_38 ||
5757                      id->device == PCI_DEVICE_ID_NVIDIA_NVENET_39) &&
5758                     pci_dev->revision >= 0xA2)
5759                         np->tx_limit = 0;
5760         }
5761
5762         /* clear phy state and temporarily halt phy interrupts */
5763         writel(0, base + NvRegMIIMask);
5764         phystate = readl(base + NvRegAdapterControl);
5765         if (phystate & NVREG_ADAPTCTL_RUNNING) {
5766                 phystate_orig = 1;
5767                 phystate &= ~NVREG_ADAPTCTL_RUNNING;
5768                 writel(phystate, base + NvRegAdapterControl);
5769         }
5770         writel(NVREG_MIISTAT_MASK_ALL, base + NvRegMIIStatus);
5771
5772         if (id->driver_data & DEV_HAS_MGMT_UNIT) {
5773                 /* management unit running on the mac? */
5774                 if (readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_SYNC_PHY_INIT) {
5775                         np->mac_in_use = readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_MGMT_ST;
5776                         dprintk(KERN_INFO "%s: mgmt unit is running. mac in use %x.\n", pci_name(pci_dev), np->mac_in_use);
5777                         if (nv_mgmt_acquire_sema(dev)) {
5778                                 /* management unit setup the phy already? */
5779                                 if ((readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_SYNC_MASK) ==
5780                                     NVREG_XMITCTL_SYNC_PHY_INIT) {
5781                                         /* phy is inited by mgmt unit */
5782                                         phyinitialized = 1;
5783                                         dprintk(KERN_INFO "%s: Phy already initialized by mgmt unit.\n", pci_name(pci_dev));
5784                                 } else {
5785                                         /* we need to init the phy */
5786                                 }
5787                         }
5788                 }
5789         }
5790
5791         /* find a suitable phy */
5792         for (i = 1; i <= 32; i++) {
5793                 int id1, id2;
5794                 int phyaddr = i & 0x1F;
5795
5796                 spin_lock_irq(&np->lock);
5797                 id1 = mii_rw(dev, phyaddr, MII_PHYSID1, MII_READ);
5798                 spin_unlock_irq(&np->lock);
5799                 if (id1 < 0 || id1 == 0xffff)
5800                         continue;
5801                 spin_lock_irq(&np->lock);
5802                 id2 = mii_rw(dev, phyaddr, MII_PHYSID2, MII_READ);
5803                 spin_unlock_irq(&np->lock);
5804                 if (id2 < 0 || id2 == 0xffff)
5805                         continue;
5806
5807                 np->phy_model = id2 & PHYID2_MODEL_MASK;
5808                 id1 = (id1 & PHYID1_OUI_MASK) << PHYID1_OUI_SHFT;
5809                 id2 = (id2 & PHYID2_OUI_MASK) >> PHYID2_OUI_SHFT;
5810                 dprintk(KERN_DEBUG "%s: open: Found PHY %04x:%04x at address %d.\n",
5811                         pci_name(pci_dev), id1, id2, phyaddr);
5812                 np->phyaddr = phyaddr;
5813                 np->phy_oui = id1 | id2;
5814
5815                 /* Realtek hardcoded phy id1 to all zero's on certain phys */
5816                 if (np->phy_oui == PHY_OUI_REALTEK2)
5817                         np->phy_oui = PHY_OUI_REALTEK;
5818                 /* Setup phy revision for Realtek */
5819                 if (np->phy_oui == PHY_OUI_REALTEK && np->phy_model == PHY_MODEL_REALTEK_8211)
5820                         np->phy_rev = mii_rw(dev, phyaddr, MII_RESV1, MII_READ) & PHY_REV_MASK;
5821
5822                 break;
5823         }
5824         if (i == 33) {
5825                 dev_printk(KERN_INFO, &pci_dev->dev,
5826                         "open: Could not find a valid PHY.\n");
5827                 goto out_error;
5828         }
5829
5830         if (!phyinitialized) {
5831                 /* reset it */
5832                 phy_init(dev);
5833         } else {
5834                 /* see if it is a gigabit phy */
5835                 u32 mii_status = mii_rw(dev, np->phyaddr, MII_BMSR, MII_READ);
5836                 if (mii_status & PHY_GIGABIT) {
5837                         np->gigabit = PHY_GIGABIT;
5838                 }
5839         }
5840
5841         /* set default link speed settings */
5842         np->linkspeed = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
5843         np->duplex = 0;
5844         np->autoneg = 1;
5845
5846         err = register_netdev(dev);
5847         if (err) {
5848                 dev_printk(KERN_INFO, &pci_dev->dev,
5849                            "unable to register netdev: %d\n", err);
5850                 goto out_error;
5851         }
5852
5853         dev_printk(KERN_INFO, &pci_dev->dev, "ifname %s, PHY OUI 0x%x @ %d, "
5854                    "addr %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x\n",
5855                    dev->name,
5856                    np->phy_oui,
5857                    np->phyaddr,
5858                    dev->dev_addr[0],
5859                    dev->dev_addr[1],
5860                    dev->dev_addr[2],
5861                    dev->dev_addr[3],
5862                    dev->dev_addr[4],
5863                    dev->dev_addr[5]);
5864
5865         dev_printk(KERN_INFO, &pci_dev->dev, "%s%s%s%s%s%s%s%s%s%sdesc-v%u\n",
5866                    dev->features & NETIF_F_HIGHDMA ? "highdma " : "",
5867                    dev->features & (NETIF_F_IP_CSUM | NETIF_F_SG) ?
5868                         "csum " : "",
5869                    dev->features & (NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_TX) ?
5870                         "vlan " : "",
5871                    id->driver_data & DEV_HAS_POWER_CNTRL ? "pwrctl " : "",
5872                    id->driver_data & DEV_HAS_MGMT_UNIT ? "mgmt " : "",
5873                    id->driver_data & DEV_NEED_TIMERIRQ ? "timirq " : "",
5874                    np->gigabit == PHY_GIGABIT ? "gbit " : "",
5875                    np->need_linktimer ? "lnktim " : "",
5876                    np->msi_flags & NV_MSI_CAPABLE ? "msi " : "",
5877                    np->msi_flags & NV_MSI_X_CAPABLE ? "msi-x " : "",
5878                    np->desc_ver);
5879
5880         return 0;
5881
5882 out_error:
5883         if (phystate_orig)
5884                 writel(phystate|NVREG_ADAPTCTL_RUNNING, base + NvRegAdapterControl);
5885         pci_set_drvdata(pci_dev, NULL);
5886 out_freering:
5887         free_rings(dev);
5888 out_unmap:
5889         iounmap(get_hwbase(dev));
5890 out_relreg:
5891         pci_release_regions(pci_dev);
5892 out_disable:
5893         pci_disable_device(pci_dev);
5894 out_free:
5895         free_netdev(dev);
5896 out:
5897         return err;
5898 }
5899
5900 static void nv_restore_phy(struct net_device *dev)
5901 {
5902         struct fe_priv *np = netdev_priv(dev);
5903         u16 phy_reserved, mii_control;
5904
5905         if (np->phy_oui == PHY_OUI_REALTEK &&
5906             np->phy_model == PHY_MODEL_REALTEK_8201 &&
5907             phy_cross == NV_CROSSOVER_DETECTION_DISABLED) {
5908                 mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT3);
5909                 phy_reserved = mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG2, MII_READ);
5910                 phy_reserved &= ~PHY_REALTEK_INIT_MSK1;
5911                 phy_reserved |= PHY_REALTEK_INIT8;
5912                 mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG2, phy_reserved);
5913                 mii_rw(dev, np->phyaddr, PHY_REALTEK_INIT_REG1, PHY_REALTEK_INIT1);
5914
5915                 /* restart auto negotiation */
5916                 mii_control = mii_rw(dev, np->phyaddr, MII_BMCR, MII_READ);
5917                 mii_control |= (BMCR_ANRESTART | BMCR_ANENABLE);
5918                 mii_rw(dev, np->phyaddr, MII_BMCR, mii_control);
5919         }
5920 }
5921
5922 static void nv_restore_mac_addr(struct pci_dev *pci_dev)
5923 {
5924         struct net_device *dev = pci_get_drvdata(pci_dev);
5925         struct fe_priv *np = netdev_priv(dev);
5926         u8 __iomem *base = get_hwbase(dev);
5927
5928         /* special op: write back the misordered MAC address - otherwise
5929          * the next nv_probe would see a wrong address.
5930          */
5931         writel(np->orig_mac[0], base + NvRegMacAddrA);
5932         writel(np->orig_mac[1], base + NvRegMacAddrB);
5933         writel(readl(base + NvRegTransmitPoll) & ~NVREG_TRANSMITPOLL_MAC_ADDR_REV,
5934                base + NvRegTransmitPoll);
5935 }
5936
5937 static void __devexit nv_remove(struct pci_dev *pci_dev)
5938 {
5939         struct net_device *dev = pci_get_drvdata(pci_dev);
5940
5941         unregister_netdev(dev);
5942
5943         nv_restore_mac_addr(pci_dev);
5944
5945         /* restore any phy related changes */
5946         nv_restore_phy(dev);
5947
5948         /* free all structures */
5949         free_rings(dev);
5950         iounmap(get_hwbase(dev));
5951         pci_release_regions(pci_dev);
5952         pci_disable_device(pci_dev);
5953         free_netdev(dev);
5954         pci_set_drvdata(pci_dev, NULL);
5955 }
5956
5957 #ifdef CONFIG_PM
5958 static int nv_suspend(struct pci_dev *pdev, pm_message_t state)
5959 {
5960         struct net_device *dev = pci_get_drvdata(pdev);
5961         struct fe_priv *np = netdev_priv(dev);
5962         u8 __iomem *base = get_hwbase(dev);
5963         int i;
5964
5965         if (netif_running(dev)) {
5966                 // Gross.
5967                 nv_close(dev);
5968         }
5969         netif_device_detach(dev);
5970
5971         /* save non-pci configuration space */
5972         for (i = 0;i <= np->register_size/sizeof(u32); i++)
5973                 np->saved_config_space[i] = readl(base + i*sizeof(u32));
5974
5975         pci_save_state(pdev);
5976         pci_enable_wake(pdev, pci_choose_state(pdev, state), np->wolenabled);
5977         pci_disable_device(pdev);
5978         pci_set_power_state(pdev, pci_choose_state(pdev, state));
5979         return 0;
5980 }
5981
5982 static int nv_resume(struct pci_dev *pdev)
5983 {
5984         struct net_device *dev = pci_get_drvdata(pdev);
5985         struct fe_priv *np = netdev_priv(dev);
5986         u8 __iomem *base = get_hwbase(dev);
5987         int i, rc = 0;
5988
5989         pci_set_power_state(pdev, PCI_D0);
5990         pci_restore_state(pdev);
5991         /* ack any pending wake events, disable PME */
5992         pci_enable_wake(pdev, PCI_D0, 0);
5993
5994         /* restore non-pci configuration space */
5995         for (i = 0;i <= np->register_size/sizeof(u32); i++)
5996                 writel(np->saved_config_space[i], base+i*sizeof(u32));
5997
5998         netif_device_attach(dev);
5999         if (netif_running(dev)) {
6000                 rc = nv_open(dev);
6001                 nv_set_multicast(dev);
6002         }
6003         return rc;
6004 }
6005
6006 static void nv_shutdown(struct pci_dev *pdev)
6007 {
6008         struct net_device *dev = pci_get_drvdata(pdev);
6009         struct fe_priv *np = netdev_priv(dev);
6010
6011         if (netif_running(dev))
6012                 nv_close(dev);
6013
6014         /*
6015          * Restore the MAC so a kernel started by kexec won't get confused.
6016          * If we really go for poweroff, we must not restore the MAC,
6017          * otherwise the MAC for WOL will be reversed at least on some boards.
6018          */
6019         if (system_state != SYSTEM_POWER_OFF) {
6020                 nv_restore_mac_addr(pdev);
6021         }
6022
6023         pci_disable_device(pdev);
6024         /*
6025          * Apparently it is not possible to reinitialise from D3 hot,
6026          * only put the device into D3 if we really go for poweroff.
6027          */
6028         if (system_state == SYSTEM_POWER_OFF) {
6029                 if (pci_enable_wake(pdev, PCI_D3cold, np->wolenabled))
6030                         pci_enable_wake(pdev, PCI_D3hot, np->wolenabled);
6031                 pci_set_power_state(pdev, PCI_D3hot);
6032         }
6033 }
6034 #else
6035 #define nv_suspend NULL
6036 #define nv_shutdown NULL
6037 #define nv_resume NULL
6038 #endif /* CONFIG_PM */
6039
6040 static struct pci_device_id pci_tbl[] = {
6041         {       /* nForce Ethernet Controller */
6042                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_1),
6043                 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER,
6044         },
6045         {       /* nForce2 Ethernet Controller */
6046                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_2),
6047                 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER,
6048         },
6049         {       /* nForce3 Ethernet Controller */
6050                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_3),
6051                 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER,
6052         },
6053         {       /* nForce3 Ethernet Controller */
6054                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_4),
6055                 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM,
6056         },
6057         {       /* nForce3 Ethernet Controller */
6058                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_5),
6059                 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM,
6060         },
6061         {       /* nForce3 Ethernet Controller */
6062                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_6),
6063                 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM,
6064         },
6065         {       /* nForce3 Ethernet Controller */
6066                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_7),
6067                 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM,
6068         },
6069         {       /* CK804 Ethernet Controller */
6070                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_8),
6071                 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_STATISTICS_V1|DEV_NEED_TX_LIMIT,
6072         },
6073         {       /* CK804 Ethernet Controller */
6074                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_9),
6075                 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_STATISTICS_V1|DEV_NEED_TX_LIMIT,
6076         },
6077         {       /* MCP04 Ethernet Controller */
6078                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_10),
6079                 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_STATISTICS_V1|DEV_NEED_TX_LIMIT,
6080         },
6081         {       /* MCP04 Ethernet Controller */
6082                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_11),
6083                 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_STATISTICS_V1|DEV_NEED_TX_LIMIT,
6084         },
6085         {       /* MCP51 Ethernet Controller */
6086                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_12),
6087                 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_STATISTICS_V1,
6088         },
6089         {       /* MCP51 Ethernet Controller */
6090                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_13),
6091                 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_STATISTICS_V1,
6092         },
6093         {       /* MCP55 Ethernet Controller */
6094                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_14),
6095                 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_VLAN|DEV_HAS_MSI|DEV_HAS_MSI_X|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_NEED_TX_LIMIT,
6096         },
6097         {       /* MCP55 Ethernet Controller */
6098                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_15),
6099                 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_VLAN|DEV_HAS_MSI|DEV_HAS_MSI_X|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_NEED_TX_LIMIT,
6100         },
6101         {       /* MCP61 Ethernet Controller */
6102                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_16),
6103                 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
6104         },
6105         {       /* MCP61 Ethernet Controller */
6106                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_17),
6107                 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
6108         },
6109         {       /* MCP61 Ethernet Controller */
6110                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_18),
6111                 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
6112         },
6113         {       /* MCP61 Ethernet Controller */
6114                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_19),
6115                 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
6116         },
6117         {       /* MCP65 Ethernet Controller */
6118                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_20),
6119                 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_NEED_TX_LIMIT|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE,
6120         },
6121         {       /* MCP65 Ethernet Controller */
6122                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_21),
6123                 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE,
6124         },
6125         {       /* MCP65 Ethernet Controller */
6126                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_22),
6127                 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE,
6128         },
6129         {       /* MCP65 Ethernet Controller */
6130                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_23),
6131                 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE,
6132         },
6133         {       /* MCP67 Ethernet Controller */
6134                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_24),
6135                 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_GEAR_MODE,
6136         },
6137         {       /* MCP67 Ethernet Controller */
6138                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_25),
6139                 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_GEAR_MODE,
6140         },
6141         {       /* MCP67 Ethernet Controller */
6142                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_26),
6143                 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_GEAR_MODE,
6144         },
6145         {       /* MCP67 Ethernet Controller */
6146                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_27),
6147                 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_GEAR_MODE,
6148         },
6149         {       /* MCP73 Ethernet Controller */
6150                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_28),
6151                 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_HAS_GEAR_MODE,
6152         },
6153         {       /* MCP73 Ethernet Controller */
6154                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_29),
6155                 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_HAS_GEAR_MODE,
6156         },
6157         {       /* MCP73 Ethernet Controller */
6158                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_30),
6159                 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_HAS_GEAR_MODE,
6160         },
6161         {       /* MCP73 Ethernet Controller */
6162                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_31),
6163                 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_HAS_GEAR_MODE,
6164         },
6165         {       /* MCP77 Ethernet Controller */
6166                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_32),
6167                 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V2|DEV_HAS_STATISTICS_V3|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE,
6168         },
6169         {       /* MCP77 Ethernet Controller */
6170                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_33),
6171                 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V2|DEV_HAS_STATISTICS_V3|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE,
6172         },
6173         {       /* MCP77 Ethernet Controller */
6174                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_34),
6175                 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V2|DEV_HAS_STATISTICS_V3|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE,
6176         },
6177         {       /* MCP77 Ethernet Controller */
6178                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_35),
6179                 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V2|DEV_HAS_STATISTICS_V3|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE,
6180         },
6181         {       /* MCP79 Ethernet Controller */
6182                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_36),
6183                 .driver_data = DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V3|DEV_HAS_STATISTICS_V3|DEV_HAS_TEST_EXTENDED|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE,
6184         },
6185         {       /* MCP79 Ethernet Controller */
6186                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_37),
6187                 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V3|DEV_HAS_STATISTICS_V3|DEV_HAS_TEST_EXTENDED|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE,
6188         },
6189         {       /* MCP79 Ethernet Controller */
6190                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_38),
6191                 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V3|DEV_HAS_STATISTICS_V3|DEV_HAS_TEST_EXTENDED|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE,
6192         },
6193         {       /* MCP79 Ethernet Controller */
6194                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_39),
6195                 .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V3|DEV_HAS_STATISTICS_V3|DEV_HAS_TEST_EXTENDED|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE,
6196         },
6197         {0,},
6198 };
6199
6200 static struct pci_driver driver = {
6201         .name           = DRV_NAME,
6202         .id_table       = pci_tbl,
6203         .probe          = nv_probe,
6204         .remove         = __devexit_p(nv_remove),
6205         .suspend        = nv_suspend,
6206         .resume         = nv_resume,
6207         .shutdown       = nv_shutdown,
6208 };
6209
6210 static int __init init_nic(void)
6211 {
6212         return pci_register_driver(&driver);
6213 }
6214
6215 static void __exit exit_nic(void)
6216 {
6217         pci_unregister_driver(&driver);
6218 }
6219
6220 module_param(max_interrupt_work, int, 0);
6221 MODULE_PARM_DESC(max_interrupt_work, "forcedeth maximum events handled per interrupt");
6222 module_param(optimization_mode, int, 0);
6223 MODULE_PARM_DESC(optimization_mode, "In throughput mode (0), every tx & rx packet will generate an interrupt. In CPU mode (1), interrupts are controlled by a timer.");
6224 module_param(poll_interval, int, 0);
6225 MODULE_PARM_DESC(poll_interval, "Interval determines how frequent timer interrupt is generated by [(time_in_micro_secs * 100) / (2^10)]. Min is 0 and Max is 65535.");
6226 module_param(msi, int, 0);
6227 MODULE_PARM_DESC(msi, "MSI interrupts are enabled by setting to 1 and disabled by setting to 0.");
6228 module_param(msix, int, 0);
6229 MODULE_PARM_DESC(msix, "MSIX interrupts are enabled by setting to 1 and disabled by setting to 0.");
6230 module_param(dma_64bit, int, 0);
6231 MODULE_PARM_DESC(dma_64bit, "High DMA is enabled by setting to 1 and disabled by setting to 0.");
6232 module_param(phy_cross, int, 0);
6233 MODULE_PARM_DESC(phy_cross, "Phy crossover detection for Realtek 8201 phy is enabled by setting to 1 and disabled by setting to 0.");
6234
6235 MODULE_AUTHOR("Manfred Spraul <manfred@colorfullife.com>");
6236 MODULE_DESCRIPTION("Reverse Engineered nForce ethernet driver");
6237 MODULE_LICENSE("GPL");
6238
6239 MODULE_DEVICE_TABLE(pci, pci_tbl);
6240
6241 module_init(init_nic);
6242 module_exit(exit_nic);