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

   1 /*
   2  * Copyright (C) 2006-2007 Freescale Semicondutor, Inc. All rights reserved.
   3  *
   4  * Author: Shlomi Gridish <gridish@freescale.com>
   5  *         Li Yang <leoli@freescale.com>
   6  *
   7  * Description:
   8  * QE UCC Gigabit Ethernet Driver
   9  *
  10  * This program is free software; you can redistribute  it and/or modify it
  11  * under  the terms of  the GNU General  Public License as published by the
  12  * Free Software Foundation;  either version 2 of the  License, or (at your
  13  * option) any later version.
  14  */
  15 #include <linux/kernel.h>
  16 #include <linux/init.h>
  17 #include <linux/errno.h>
  18 #include <linux/slab.h>
  19 #include <linux/stddef.h>
  20 #include <linux/interrupt.h>
  21 #include <linux/netdevice.h>
  22 #include <linux/etherdevice.h>
  23 #include <linux/skbuff.h>
  24 #include <linux/spinlock.h>
  25 #include <linux/mm.h>
  26 #include <linux/dma-mapping.h>
  27 #include <linux/fsl_devices.h>
  28 #include <linux/mii.h>
  29 #include <linux/phy.h>
  30 #include <linux/workqueue.h>
  31
  32 #include <asm/of_platform.h>
  33 #include <asm/uaccess.h>
  34 #include <asm/irq.h>
  35 #include <asm/io.h>
  36 #include <asm/immap_qe.h>
  37 #include <asm/qe.h>
  38 #include <asm/ucc.h>
  39 #include <asm/ucc_fast.h>
  40
  41 #include "ucc_geth.h"
  42 #include "ucc_geth_mii.h"
  43
  44 #undef DEBUG
  45
  46 #define ugeth_printk(level, format, arg...)  \
  47         printk(level format "\n", ## arg)
  48
  49 #define ugeth_dbg(format, arg...)            \
  50         ugeth_printk(KERN_DEBUG , format , ## arg)
  51 #define ugeth_err(format, arg...)            \
  52         ugeth_printk(KERN_ERR , format , ## arg)
  53 #define ugeth_info(format, arg...)           \
  54         ugeth_printk(KERN_INFO , format , ## arg)
  55 #define ugeth_warn(format, arg...)           \
  56         ugeth_printk(KERN_WARNING , format , ## arg)
  57
  58 #ifdef UGETH_VERBOSE_DEBUG
  59 #define ugeth_vdbg ugeth_dbg
  60 #else
  61 #define ugeth_vdbg(fmt, args...) do { } while (0)
  62 #endif                          /* UGETH_VERBOSE_DEBUG */
  63 #define UGETH_MSG_DEFAULT       (NETIF_MSG_IFUP << 1 ) - 1
  64
  65 void uec_set_ethtool_ops(struct net_device *netdev);
  66
  67 static DEFINE_SPINLOCK(ugeth_lock);
  68
  69 static struct {
  70         u32 msg_enable;
  71 } debug = { -1 };
  72
  73 module_param_named(debug, debug.msg_enable, int, 0);
  74 MODULE_PARM_DESC(debug, "Debug verbosity level (0=none, ..., 0xffff=all)");
  75
  76 static struct ucc_geth_info ugeth_primary_info = {
  77         .uf_info = {
  78                     .bd_mem_part = MEM_PART_SYSTEM,
  79                     .rtsm = UCC_FAST_SEND_IDLES_BETWEEN_FRAMES,
  80                     .max_rx_buf_length = 1536,
  81                     /* adjusted at startup if max-speed 1000 */
  82                     .urfs = UCC_GETH_URFS_INIT,
  83                     .urfet = UCC_GETH_URFET_INIT,
  84                     .urfset = UCC_GETH_URFSET_INIT,
  85                     .utfs = UCC_GETH_UTFS_INIT,
  86                     .utfet = UCC_GETH_UTFET_INIT,
  87                     .utftt = UCC_GETH_UTFTT_INIT,
  88                     .ufpt = 256,
  89                     .mode = UCC_FAST_PROTOCOL_MODE_ETHERNET,
  90                     .ttx_trx = UCC_FAST_GUMR_TRANSPARENT_TTX_TRX_NORMAL,
  91                     .tenc = UCC_FAST_TX_ENCODING_NRZ,
  92                     .renc = UCC_FAST_RX_ENCODING_NRZ,
  93                     .tcrc = UCC_FAST_16_BIT_CRC,
  94                     .synl = UCC_FAST_SYNC_LEN_NOT_USED,
  95                     },
  96         .numQueuesTx = 1,
  97         .numQueuesRx = 1,
  98         .extendedFilteringChainPointer = ((uint32_t) NULL),
  99         .typeorlen = 3072 /*1536 */ ,
 100         .nonBackToBackIfgPart1 = 0x40,
 101         .nonBackToBackIfgPart2 = 0x60,
 102         .miminumInterFrameGapEnforcement = 0x50,
 103         .backToBackInterFrameGap = 0x60,
 104         .mblinterval = 128,
 105         .nortsrbytetime = 5,
 106         .fracsiz = 1,
 107         .strictpriorityq = 0xff,
 108         .altBebTruncation = 0xa,
 109         .excessDefer = 1,
 110         .maxRetransmission = 0xf,
 111         .collisionWindow = 0x37,
 112         .receiveFlowControl = 1,
 113         .transmitFlowControl = 1,
 114         .maxGroupAddrInHash = 4,
 115         .maxIndAddrInHash = 4,
 116         .prel = 7,
 117         .maxFrameLength = 1518,
 118         .minFrameLength = 64,
 119         .maxD1Length = 1520,
 120         .maxD2Length = 1520,
 121         .vlantype = 0x8100,
 122         .ecamptr = ((uint32_t) NULL),
 123         .eventRegMask = UCCE_OTHER,
 124         .pausePeriod = 0xf000,
 125         .interruptcoalescingmaxvalue = {1, 1, 1, 1, 1, 1, 1, 1},
 126         .bdRingLenTx = {
 127                         TX_BD_RING_LEN,
 128                         TX_BD_RING_LEN,
 129                         TX_BD_RING_LEN,
 130                         TX_BD_RING_LEN,
 131                         TX_BD_RING_LEN,
 132                         TX_BD_RING_LEN,
 133                         TX_BD_RING_LEN,
 134                         TX_BD_RING_LEN},
 135
 136         .bdRingLenRx = {
 137                         RX_BD_RING_LEN,
 138                         RX_BD_RING_LEN,
 139                         RX_BD_RING_LEN,
 140                         RX_BD_RING_LEN,
 141                         RX_BD_RING_LEN,
 142                         RX_BD_RING_LEN,
 143                         RX_BD_RING_LEN,
 144                         RX_BD_RING_LEN},
 145
 146         .numStationAddresses = UCC_GETH_NUM_OF_STATION_ADDRESSES_1,
 147         .largestexternallookupkeysize =
 148             QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_NONE,
 149         .statisticsMode = UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE |
 150                 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX |
 151                 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX,
 152         .vlanOperationTagged = UCC_GETH_VLAN_OPERATION_TAGGED_NOP,
 153         .vlanOperationNonTagged = UCC_GETH_VLAN_OPERATION_NON_TAGGED_NOP,
 154         .rxQoSMode = UCC_GETH_QOS_MODE_DEFAULT,
 155         .aufc = UPSMR_AUTOMATIC_FLOW_CONTROL_MODE_NONE,
 156         .padAndCrc = MACCFG2_PAD_AND_CRC_MODE_PAD_AND_CRC,
 157         .numThreadsTx = UCC_GETH_NUM_OF_THREADS_4,
 158         .numThreadsRx = UCC_GETH_NUM_OF_THREADS_4,
 159         .riscTx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
 160         .riscRx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
 161 };
 162
 163 static struct ucc_geth_info ugeth_info[8];
 164
 165 #ifdef DEBUG
 166 static void mem_disp(u8 *addr, int size)
 167 {
 168         u8 *i;
 169         int size16Aling = (size >> 4) << 4;
 170         int size4Aling = (size >> 2) << 2;
 171         int notAlign = 0;
 172         if (size % 16)
 173                 notAlign = 1;
 174
 175         for (i = addr; (u32) i < (u32) addr + size16Aling; i += 16)
 176                 printk("0x%08x: %08x %08x %08x %08x\r\n",
 177                        (u32) i,
 178                        *((u32 *) (i)),
 179                        *((u32 *) (i + 4)),
 180                        *((u32 *) (i + 8)), *((u32 *) (i + 12)));
 181         if (notAlign == 1)
 182                 printk("0x%08x: ", (u32) i);
 183         for (; (u32) i < (u32) addr + size4Aling; i += 4)
 184                 printk("%08x ", *((u32 *) (i)));
 185         for (; (u32) i < (u32) addr + size; i++)
 186                 printk("%02x", *((u8 *) (i)));
 187         if (notAlign == 1)
 188                 printk("\r\n");
 189 }
 190 #endif /* DEBUG */
 191
 192 #ifdef CONFIG_UGETH_FILTERING
 193 static void enqueue(struct list_head *node, struct list_head *lh)
 194 {
 195         unsigned long flags;
 196
 197         spin_lock_irqsave(&ugeth_lock, flags);
 198         list_add_tail(node, lh);
 199         spin_unlock_irqrestore(&ugeth_lock, flags);
 200 }
 201 #endif /* CONFIG_UGETH_FILTERING */
 202
 203 static struct list_head *dequeue(struct list_head *lh)
 204 {
 205         unsigned long flags;
 206
 207         spin_lock_irqsave(&ugeth_lock, flags);
 208         if (!list_empty(lh)) {
 209                 struct list_head *node = lh->next;
 210                 list_del(node);
 211                 spin_unlock_irqrestore(&ugeth_lock, flags);
 212                 return node;
 213         } else {
 214                 spin_unlock_irqrestore(&ugeth_lock, flags);
 215                 return NULL;
 216         }
 217 }
 218
 219 static struct sk_buff *get_new_skb(struct ucc_geth_private *ugeth, u8 *bd)
 220 {
 221         struct sk_buff *skb = NULL;
 222
 223         skb = dev_alloc_skb(ugeth->ug_info->uf_info.max_rx_buf_length +
 224                                   UCC_GETH_RX_DATA_BUF_ALIGNMENT);
 225
 226         if (skb == NULL)
 227                 return NULL;
 228
 229         /* We need the data buffer to be aligned properly.  We will reserve
 230          * as many bytes as needed to align the data properly
 231          */
 232         skb_reserve(skb,
 233                     UCC_GETH_RX_DATA_BUF_ALIGNMENT -
 234                     (((unsigned)skb->data) & (UCC_GETH_RX_DATA_BUF_ALIGNMENT -
 235                                               1)));
 236
 237         skb->dev = ugeth->dev;
 238
 239         out_be32(&((struct qe_bd *)bd)->buf,
 240                       dma_map_single(NULL,
 241                                      skb->data,
 242                                      ugeth->ug_info->uf_info.max_rx_buf_length +
 243                                      UCC_GETH_RX_DATA_BUF_ALIGNMENT,
 244                                      DMA_FROM_DEVICE));
 245
 246         out_be32((u32 *)bd, (R_E | R_I | (in_be32((u32 *)bd) & R_W)));
 247
 248         return skb;
 249 }
 250
 251 static int rx_bd_buffer_set(struct ucc_geth_private *ugeth, u8 rxQ)
 252 {
 253         u8 *bd;
 254         u32 bd_status;
 255         struct sk_buff *skb;
 256         int i;
 257
 258         bd = ugeth->p_rx_bd_ring[rxQ];
 259         i = 0;
 260
 261         do {
 262                 bd_status = in_be32((u32*)bd);
 263                 skb = get_new_skb(ugeth, bd);
 264
 265                 if (!skb)       /* If can not allocate data buffer,
 266                                 abort. Cleanup will be elsewhere */
 267                         return -ENOMEM;
 268
 269                 ugeth->rx_skbuff[rxQ][i] = skb;
 270
 271                 /* advance the BD pointer */
 272                 bd += sizeof(struct qe_bd);
 273                 i++;
 274         } while (!(bd_status & R_W));
 275
 276         return 0;
 277 }
 278
 279 static int fill_init_enet_entries(struct ucc_geth_private *ugeth,
 280                                   volatile u32 *p_start,
 281                                   u8 num_entries,
 282                                   u32 thread_size,
 283                                   u32 thread_alignment,
 284                                   enum qe_risc_allocation risc,
 285                                   int skip_page_for_first_entry)
 286 {
 287         u32 init_enet_offset;
 288         u8 i;
 289         int snum;
 290
 291         for (i = 0; i < num_entries; i++) {
 292                 if ((snum = qe_get_snum()) < 0) {
 293                         if (netif_msg_ifup(ugeth))
 294                                 ugeth_err("fill_init_enet_entries: Can not get SNUM.");
 295                         return snum;
 296                 }
 297                 if ((i == 0) && skip_page_for_first_entry)
 298                 /* First entry of Rx does not have page */
 299                         init_enet_offset = 0;
 300                 else {
 301                         init_enet_offset =
 302                             qe_muram_alloc(thread_size, thread_alignment);
 303                         if (IS_ERR_VALUE(init_enet_offset)) {
 304                                 if (netif_msg_ifup(ugeth))
 305                                         ugeth_err("fill_init_enet_entries: Can not allocate DPRAM memory.");
 306                                 qe_put_snum((u8) snum);
 307                                 return -ENOMEM;
 308                         }
 309                 }
 310                 *(p_start++) =
 311                     ((u8) snum << ENET_INIT_PARAM_SNUM_SHIFT) | init_enet_offset
 312                     | risc;
 313         }
 314
 315         return 0;
 316 }
 317
 318 static int return_init_enet_entries(struct ucc_geth_private *ugeth,
 319                                     volatile u32 *p_start,
 320                                     u8 num_entries,
 321                                     enum qe_risc_allocation risc,
 322                                     int skip_page_for_first_entry)
 323 {
 324         u32 init_enet_offset;
 325         u8 i;
 326         int snum;
 327
 328         for (i = 0; i < num_entries; i++) {
 329                 /* Check that this entry was actually valid --
 330                 needed in case failed in allocations */
 331                 if ((*p_start & ENET_INIT_PARAM_RISC_MASK) == risc) {
 332                         snum =
 333                             (u32) (*p_start & ENET_INIT_PARAM_SNUM_MASK) >>
 334                             ENET_INIT_PARAM_SNUM_SHIFT;
 335                         qe_put_snum((u8) snum);
 336                         if (!((i == 0) && skip_page_for_first_entry)) {
 337                         /* First entry of Rx does not have page */
 338                                 init_enet_offset =
 339                                     (in_be32(p_start) &
 340                                      ENET_INIT_PARAM_PTR_MASK);
 341                                 qe_muram_free(init_enet_offset);
 342                         }
 343                         *(p_start++) = 0;       /* Just for cosmetics */
 344                 }
 345         }
 346
 347         return 0;
 348 }
 349
 350 #ifdef DEBUG
 351 static int dump_init_enet_entries(struct ucc_geth_private *ugeth,
 352                                   volatile u32 *p_start,
 353                                   u8 num_entries,
 354                                   u32 thread_size,
 355                                   enum qe_risc_allocation risc,
 356                                   int skip_page_for_first_entry)
 357 {
 358         u32 init_enet_offset;
 359         u8 i;
 360         int snum;
 361
 362         for (i = 0; i < num_entries; i++) {
 363                 /* Check that this entry was actually valid --
 364                 needed in case failed in allocations */
 365                 if ((*p_start & ENET_INIT_PARAM_RISC_MASK) == risc) {
 366                         snum =
 367                             (u32) (*p_start & ENET_INIT_PARAM_SNUM_MASK) >>
 368                             ENET_INIT_PARAM_SNUM_SHIFT;
 369                         qe_put_snum((u8) snum);
 370                         if (!((i == 0) && skip_page_for_first_entry)) {
 371                         /* First entry of Rx does not have page */
 372                                 init_enet_offset =
 373                                     (in_be32(p_start) &
 374                                      ENET_INIT_PARAM_PTR_MASK);
 375                                 ugeth_info("Init enet entry %d:", i);
 376                                 ugeth_info("Base address: 0x%08x",
 377                                            (u32)
 378                                            qe_muram_addr(init_enet_offset));
 379                                 mem_disp(qe_muram_addr(init_enet_offset),
 380                                          thread_size);
 381                         }
 382                         p_start++;
 383                 }
 384         }
 385
 386         return 0;
 387 }
 388 #endif
 389
 390 #ifdef CONFIG_UGETH_FILTERING
 391 static struct enet_addr_container *get_enet_addr_container(void)
 392 {
 393         struct enet_addr_container *enet_addr_cont;
 394
 395         /* allocate memory */
 396         enet_addr_cont = kmalloc(sizeof(struct enet_addr_container), GFP_KERNEL);
 397         if (!enet_addr_cont) {
 398                 ugeth_err("%s: No memory for enet_addr_container object.",
 399                           __FUNCTION__);
 400                 return NULL;
 401         }
 402
 403         return enet_addr_cont;
 404 }
 405 #endif /* CONFIG_UGETH_FILTERING */
 406
 407 static void put_enet_addr_container(struct enet_addr_container *enet_addr_cont)
 408 {
 409         kfree(enet_addr_cont);
 410 }
 411
 412 static void set_mac_addr(__be16 __iomem *reg, u8 *mac)
 413 {
 414         out_be16(&reg[0], ((u16)mac[5] << 8) | mac[4]);
 415         out_be16(&reg[1], ((u16)mac[3] << 8) | mac[2]);
 416         out_be16(&reg[2], ((u16)mac[1] << 8) | mac[0]);
 417 }
 418
 419 #ifdef CONFIG_UGETH_FILTERING
 420 static int hw_add_addr_in_paddr(struct ucc_geth_private *ugeth,
 421                                 u8 *p_enet_addr, u8 paddr_num)
 422 {
 423         struct ucc_geth_82xx_address_filtering_pram *p_82xx_addr_filt;
 424
 425         if (!(paddr_num < NUM_OF_PADDRS)) {
 426                 ugeth_warn("%s: Illegal paddr_num.", __FUNCTION__);
 427                 return -EINVAL;
 428         }
 429
 430         p_82xx_addr_filt =
 431             (struct ucc_geth_82xx_address_filtering_pram *) ugeth->p_rx_glbl_pram->
 432             addressfiltering;
 433
 434         /* Ethernet frames are defined in Little Endian mode,    */
 435         /* therefore to insert the address we reverse the bytes. */
 436         set_mac_addr(&p_82xx_addr_filt->paddr[paddr_num].h, p_enet_addr);
 437         return 0;
 438 }
 439 #endif /* CONFIG_UGETH_FILTERING */
 440
 441 static int hw_clear_addr_in_paddr(struct ucc_geth_private *ugeth, u8 paddr_num)
 442 {
 443         struct ucc_geth_82xx_address_filtering_pram *p_82xx_addr_filt;
 444
 445         if (!(paddr_num < NUM_OF_PADDRS)) {
 446                 ugeth_warn("%s: Illagel paddr_num.", __FUNCTION__);
 447                 return -EINVAL;
 448         }
 449
 450         p_82xx_addr_filt =
 451             (struct ucc_geth_82xx_address_filtering_pram *) ugeth->p_rx_glbl_pram->
 452             addressfiltering;
 453
 454         /* Writing address ff.ff.ff.ff.ff.ff disables address
 455         recognition for this register */
 456         out_be16(&p_82xx_addr_filt->paddr[paddr_num].h, 0xffff);
 457         out_be16(&p_82xx_addr_filt->paddr[paddr_num].m, 0xffff);
 458         out_be16(&p_82xx_addr_filt->paddr[paddr_num].l, 0xffff);
 459
 460         return 0;
 461 }
 462
 463 static void hw_add_addr_in_hash(struct ucc_geth_private *ugeth,
 464                                 u8 *p_enet_addr)
 465 {
 466         struct ucc_geth_82xx_address_filtering_pram *p_82xx_addr_filt;
 467         u32 cecr_subblock;
 468
 469         p_82xx_addr_filt =
 470             (struct ucc_geth_82xx_address_filtering_pram *) ugeth->p_rx_glbl_pram->
 471             addressfiltering;
 472
 473         cecr_subblock =
 474             ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
 475
 476         /* Ethernet frames are defined in Little Endian mode,
 477         therefor to insert */
 478         /* the address to the hash (Big Endian mode), we reverse the bytes.*/
 479
 480         set_mac_addr(&p_82xx_addr_filt->taddr.h, p_enet_addr);
 481
 482         qe_issue_cmd(QE_SET_GROUP_ADDRESS, cecr_subblock,
 483                      QE_CR_PROTOCOL_ETHERNET, 0);
 484 }
 485
 486 #ifdef CONFIG_UGETH_MAGIC_PACKET
 487 static void magic_packet_detection_enable(struct ucc_geth_private *ugeth)
 488 {
 489         struct ucc_fast_private *uccf;
 490         struct ucc_geth *ug_regs;
 491         u32 maccfg2, uccm;
 492
 493         uccf = ugeth->uccf;
 494         ug_regs = ugeth->ug_regs;
 495
 496         /* Enable interrupts for magic packet detection */
 497         uccm = in_be32(uccf->p_uccm);
 498         uccm |= UCCE_MPD;
 499         out_be32(uccf->p_uccm, uccm);
 500
 501         /* Enable magic packet detection */
 502         maccfg2 = in_be32(&ug_regs->maccfg2);
 503         maccfg2 |= MACCFG2_MPE;
 504         out_be32(&ug_regs->maccfg2, maccfg2);
 505 }
 506
 507 static void magic_packet_detection_disable(struct ucc_geth_private *ugeth)
 508 {
 509         struct ucc_fast_private *uccf;
 510         struct ucc_geth *ug_regs;
 511         u32 maccfg2, uccm;
 512
 513         uccf = ugeth->uccf;
 514         ug_regs = ugeth->ug_regs;
 515
 516         /* Disable interrupts for magic packet detection */
 517         uccm = in_be32(uccf->p_uccm);
 518         uccm &= ~UCCE_MPD;
 519         out_be32(uccf->p_uccm, uccm);
 520
 521         /* Disable magic packet detection */
 522         maccfg2 = in_be32(&ug_regs->maccfg2);
 523         maccfg2 &= ~MACCFG2_MPE;
 524         out_be32(&ug_regs->maccfg2, maccfg2);
 525 }
 526 #endif /* MAGIC_PACKET */
 527
 528 static inline int compare_addr(u8 **addr1, u8 **addr2)
 529 {
 530         return memcmp(addr1, addr2, ENET_NUM_OCTETS_PER_ADDRESS);
 531 }
 532
 533 #ifdef DEBUG
 534 static void get_statistics(struct ucc_geth_private *ugeth,
 535                            struct ucc_geth_tx_firmware_statistics *
 536                            tx_firmware_statistics,
 537                            struct ucc_geth_rx_firmware_statistics *
 538                            rx_firmware_statistics,
 539                            struct ucc_geth_hardware_statistics *hardware_statistics)
 540 {
 541         struct ucc_fast *uf_regs;
 542         struct ucc_geth *ug_regs;
 543         struct ucc_geth_tx_firmware_statistics_pram *p_tx_fw_statistics_pram;
 544         struct ucc_geth_rx_firmware_statistics_pram *p_rx_fw_statistics_pram;
 545
 546         ug_regs = ugeth->ug_regs;
 547         uf_regs = (struct ucc_fast *) ug_regs;
 548         p_tx_fw_statistics_pram = ugeth->p_tx_fw_statistics_pram;
 549         p_rx_fw_statistics_pram = ugeth->p_rx_fw_statistics_pram;
 550
 551         /* Tx firmware only if user handed pointer and driver actually
 552         gathers Tx firmware statistics */
 553         if (tx_firmware_statistics && p_tx_fw_statistics_pram) {
 554                 tx_firmware_statistics->sicoltx =
 555                     in_be32(&p_tx_fw_statistics_pram->sicoltx);
 556                 tx_firmware_statistics->mulcoltx =
 557                     in_be32(&p_tx_fw_statistics_pram->mulcoltx);
 558                 tx_firmware_statistics->latecoltxfr =
 559                     in_be32(&p_tx_fw_statistics_pram->latecoltxfr);
 560                 tx_firmware_statistics->frabortduecol =
 561                     in_be32(&p_tx_fw_statistics_pram->frabortduecol);
 562                 tx_firmware_statistics->frlostinmactxer =
 563                     in_be32(&p_tx_fw_statistics_pram->frlostinmactxer);
 564                 tx_firmware_statistics->carriersenseertx =
 565                     in_be32(&p_tx_fw_statistics_pram->carriersenseertx);
 566                 tx_firmware_statistics->frtxok =
 567                     in_be32(&p_tx_fw_statistics_pram->frtxok);
 568                 tx_firmware_statistics->txfrexcessivedefer =
 569                     in_be32(&p_tx_fw_statistics_pram->txfrexcessivedefer);
 570                 tx_firmware_statistics->txpkts256 =
 571                     in_be32(&p_tx_fw_statistics_pram->txpkts256);
 572                 tx_firmware_statistics->txpkts512 =
 573                     in_be32(&p_tx_fw_statistics_pram->txpkts512);
 574                 tx_firmware_statistics->txpkts1024 =
 575                     in_be32(&p_tx_fw_statistics_pram->txpkts1024);
 576                 tx_firmware_statistics->txpktsjumbo =
 577                     in_be32(&p_tx_fw_statistics_pram->txpktsjumbo);
 578         }
 579
 580         /* Rx firmware only if user handed pointer and driver actually
 581          * gathers Rx firmware statistics */
 582         if (rx_firmware_statistics && p_rx_fw_statistics_pram) {
 583                 int i;
 584                 rx_firmware_statistics->frrxfcser =
 585                     in_be32(&p_rx_fw_statistics_pram->frrxfcser);
 586                 rx_firmware_statistics->fraligner =
 587                     in_be32(&p_rx_fw_statistics_pram->fraligner);
 588                 rx_firmware_statistics->inrangelenrxer =
 589                     in_be32(&p_rx_fw_statistics_pram->inrangelenrxer);
 590                 rx_firmware_statistics->outrangelenrxer =
 591                     in_be32(&p_rx_fw_statistics_pram->outrangelenrxer);
 592                 rx_firmware_statistics->frtoolong =
 593                     in_be32(&p_rx_fw_statistics_pram->frtoolong);
 594                 rx_firmware_statistics->runt =
 595                     in_be32(&p_rx_fw_statistics_pram->runt);
 596                 rx_firmware_statistics->verylongevent =
 597                     in_be32(&p_rx_fw_statistics_pram->verylongevent);
 598                 rx_firmware_statistics->symbolerror =
 599                     in_be32(&p_rx_fw_statistics_pram->symbolerror);
 600                 rx_firmware_statistics->dropbsy =
 601                     in_be32(&p_rx_fw_statistics_pram->dropbsy);
 602                 for (i = 0; i < 0x8; i++)
 603                         rx_firmware_statistics->res0[i] =
 604                             p_rx_fw_statistics_pram->res0[i];
 605                 rx_firmware_statistics->mismatchdrop =
 606                     in_be32(&p_rx_fw_statistics_pram->mismatchdrop);
 607                 rx_firmware_statistics->underpkts =
 608                     in_be32(&p_rx_fw_statistics_pram->underpkts);
 609                 rx_firmware_statistics->pkts256 =
 610                     in_be32(&p_rx_fw_statistics_pram->pkts256);
 611                 rx_firmware_statistics->pkts512 =
 612                     in_be32(&p_rx_fw_statistics_pram->pkts512);
 613                 rx_firmware_statistics->pkts1024 =
 614                     in_be32(&p_rx_fw_statistics_pram->pkts1024);
 615                 rx_firmware_statistics->pktsjumbo =
 616                     in_be32(&p_rx_fw_statistics_pram->pktsjumbo);
 617                 rx_firmware_statistics->frlossinmacer =
 618                     in_be32(&p_rx_fw_statistics_pram->frlossinmacer);
 619                 rx_firmware_statistics->pausefr =
 620                     in_be32(&p_rx_fw_statistics_pram->pausefr);
 621                 for (i = 0; i < 0x4; i++)
 622                         rx_firmware_statistics->res1[i] =
 623                             p_rx_fw_statistics_pram->res1[i];
 624                 rx_firmware_statistics->removevlan =
 625                     in_be32(&p_rx_fw_statistics_pram->removevlan);
 626                 rx_firmware_statistics->replacevlan =
 627                     in_be32(&p_rx_fw_statistics_pram->replacevlan);
 628                 rx_firmware_statistics->insertvlan =
 629                     in_be32(&p_rx_fw_statistics_pram->insertvlan);
 630         }
 631
 632         /* Hardware only if user handed pointer and driver actually
 633         gathers hardware statistics */
 634         if (hardware_statistics && (in_be32(&uf_regs->upsmr) & UPSMR_HSE)) {
 635                 hardware_statistics->tx64 = in_be32(&ug_regs->tx64);
 636                 hardware_statistics->tx127 = in_be32(&ug_regs->tx127);
 637                 hardware_statistics->tx255 = in_be32(&ug_regs->tx255);
 638                 hardware_statistics->rx64 = in_be32(&ug_regs->rx64);
 639                 hardware_statistics->rx127 = in_be32(&ug_regs->rx127);
 640                 hardware_statistics->rx255 = in_be32(&ug_regs->rx255);
 641                 hardware_statistics->txok = in_be32(&ug_regs->txok);
 642                 hardware_statistics->txcf = in_be16(&ug_regs->txcf);
 643                 hardware_statistics->tmca = in_be32(&ug_regs->tmca);
 644                 hardware_statistics->tbca = in_be32(&ug_regs->tbca);
 645                 hardware_statistics->rxfok = in_be32(&ug_regs->rxfok);
 646                 hardware_statistics->rxbok = in_be32(&ug_regs->rxbok);
 647                 hardware_statistics->rbyt = in_be32(&ug_regs->rbyt);
 648                 hardware_statistics->rmca = in_be32(&ug_regs->rmca);
 649                 hardware_statistics->rbca = in_be32(&ug_regs->rbca);
 650         }
 651 }
 652
 653 static void dump_bds(struct ucc_geth_private *ugeth)
 654 {
 655         int i;
 656         int length;
 657
 658         for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) {
 659                 if (ugeth->p_tx_bd_ring[i]) {
 660                         length =
 661                             (ugeth->ug_info->bdRingLenTx[i] *
 662                              sizeof(struct qe_bd));
 663                         ugeth_info("TX BDs[%d]", i);
 664                         mem_disp(ugeth->p_tx_bd_ring[i], length);
 665                 }
 666         }
 667         for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
 668                 if (ugeth->p_rx_bd_ring[i]) {
 669                         length =
 670                             (ugeth->ug_info->bdRingLenRx[i] *
 671                              sizeof(struct qe_bd));
 672                         ugeth_info("RX BDs[%d]", i);
 673                         mem_disp(ugeth->p_rx_bd_ring[i], length);
 674                 }
 675         }
 676 }
 677
 678 static void dump_regs(struct ucc_geth_private *ugeth)
 679 {
 680         int i;
 681
 682         ugeth_info("UCC%d Geth registers:", ugeth->ug_info->uf_info.ucc_num);
 683         ugeth_info("Base address: 0x%08x", (u32) ugeth->ug_regs);
 684
 685         ugeth_info("maccfg1    : addr - 0x%08x, val - 0x%08x",
 686                    (u32) & ugeth->ug_regs->maccfg1,
 687                    in_be32(&ugeth->ug_regs->maccfg1));
 688         ugeth_info("maccfg2    : addr - 0x%08x, val - 0x%08x",
 689                    (u32) & ugeth->ug_regs->maccfg2,
 690                    in_be32(&ugeth->ug_regs->maccfg2));
 691         ugeth_info("ipgifg     : addr - 0x%08x, val - 0x%08x",
 692                    (u32) & ugeth->ug_regs->ipgifg,
 693                    in_be32(&ugeth->ug_regs->ipgifg));
 694         ugeth_info("hafdup     : addr - 0x%08x, val - 0x%08x",
 695                    (u32) & ugeth->ug_regs->hafdup,
 696                    in_be32(&ugeth->ug_regs->hafdup));
 697         ugeth_info("ifctl      : addr - 0x%08x, val - 0x%08x",
 698                    (u32) & ugeth->ug_regs->ifctl,
 699                    in_be32(&ugeth->ug_regs->ifctl));
 700         ugeth_info("ifstat     : addr - 0x%08x, val - 0x%08x",
 701                    (u32) & ugeth->ug_regs->ifstat,
 702                    in_be32(&ugeth->ug_regs->ifstat));
 703         ugeth_info("macstnaddr1: addr - 0x%08x, val - 0x%08x",
 704                    (u32) & ugeth->ug_regs->macstnaddr1,
 705                    in_be32(&ugeth->ug_regs->macstnaddr1));
 706         ugeth_info("macstnaddr2: addr - 0x%08x, val - 0x%08x",
 707                    (u32) & ugeth->ug_regs->macstnaddr2,
 708                    in_be32(&ugeth->ug_regs->macstnaddr2));
 709         ugeth_info("uempr      : addr - 0x%08x, val - 0x%08x",
 710                    (u32) & ugeth->ug_regs->uempr,
 711                    in_be32(&ugeth->ug_regs->uempr));
 712         ugeth_info("utbipar    : addr - 0x%08x, val - 0x%08x",
 713                    (u32) & ugeth->ug_regs->utbipar,
 714                    in_be32(&ugeth->ug_regs->utbipar));
 715         ugeth_info("uescr      : addr - 0x%08x, val - 0x%04x",
 716                    (u32) & ugeth->ug_regs->uescr,
 717                    in_be16(&ugeth->ug_regs->uescr));
 718         ugeth_info("tx64       : addr - 0x%08x, val - 0x%08x",
 719                    (u32) & ugeth->ug_regs->tx64,
 720                    in_be32(&ugeth->ug_regs->tx64));
 721         ugeth_info("tx127      : addr - 0x%08x, val - 0x%08x",
 722                    (u32) & ugeth->ug_regs->tx127,
 723                    in_be32(&ugeth->ug_regs->tx127));
 724         ugeth_info("tx255      : addr - 0x%08x, val - 0x%08x",
 725                    (u32) & ugeth->ug_regs->tx255,
 726                    in_be32(&ugeth->ug_regs->tx255));
 727         ugeth_info("rx64       : addr - 0x%08x, val - 0x%08x",
 728                    (u32) & ugeth->ug_regs->rx64,
 729                    in_be32(&ugeth->ug_regs->rx64));
 730         ugeth_info("rx127      : addr - 0x%08x, val - 0x%08x",
 731                    (u32) & ugeth->ug_regs->rx127,
 732                    in_be32(&ugeth->ug_regs->rx127));
 733         ugeth_info("rx255      : addr - 0x%08x, val - 0x%08x",
 734                    (u32) & ugeth->ug_regs->rx255,
 735                    in_be32(&ugeth->ug_regs->rx255));
 736         ugeth_info("txok       : addr - 0x%08x, val - 0x%08x",
 737                    (u32) & ugeth->ug_regs->txok,
 738                    in_be32(&ugeth->ug_regs->txok));
 739         ugeth_info("txcf       : addr - 0x%08x, val - 0x%04x",
 740                    (u32) & ugeth->ug_regs->txcf,
 741                    in_be16(&ugeth->ug_regs->txcf));
 742         ugeth_info("tmca       : addr - 0x%08x, val - 0x%08x",
 743                    (u32) & ugeth->ug_regs->tmca,
 744                    in_be32(&ugeth->ug_regs->tmca));
 745         ugeth_info("tbca       : addr - 0x%08x, val - 0x%08x",
 746                    (u32) & ugeth->ug_regs->tbca,
 747                    in_be32(&ugeth->ug_regs->tbca));
 748         ugeth_info("rxfok      : addr - 0x%08x, val - 0x%08x",
 749                    (u32) & ugeth->ug_regs->rxfok,
 750                    in_be32(&ugeth->ug_regs->rxfok));
 751         ugeth_info("rxbok      : addr - 0x%08x, val - 0x%08x",
 752                    (u32) & ugeth->ug_regs->rxbok,
 753                    in_be32(&ugeth->ug_regs->rxbok));
 754         ugeth_info("rbyt       : addr - 0x%08x, val - 0x%08x",
 755                    (u32) & ugeth->ug_regs->rbyt,
 756                    in_be32(&ugeth->ug_regs->rbyt));
 757         ugeth_info("rmca       : addr - 0x%08x, val - 0x%08x",
 758                    (u32) & ugeth->ug_regs->rmca,
 759                    in_be32(&ugeth->ug_regs->rmca));
 760         ugeth_info("rbca       : addr - 0x%08x, val - 0x%08x",
 761                    (u32) & ugeth->ug_regs->rbca,
 762                    in_be32(&ugeth->ug_regs->rbca));
 763         ugeth_info("scar       : addr - 0x%08x, val - 0x%08x",
 764                    (u32) & ugeth->ug_regs->scar,
 765                    in_be32(&ugeth->ug_regs->scar));
 766         ugeth_info("scam       : addr - 0x%08x, val - 0x%08x",
 767                    (u32) & ugeth->ug_regs->scam,
 768                    in_be32(&ugeth->ug_regs->scam));
 769
 770         if (ugeth->p_thread_data_tx) {
 771                 int numThreadsTxNumerical;
 772                 switch (ugeth->ug_info->numThreadsTx) {
 773                 case UCC_GETH_NUM_OF_THREADS_1:
 774                         numThreadsTxNumerical = 1;
 775                         break;
 776                 case UCC_GETH_NUM_OF_THREADS_2:
 777                         numThreadsTxNumerical = 2;
 778                         break;
 779                 case UCC_GETH_NUM_OF_THREADS_4:
 780                         numThreadsTxNumerical = 4;
 781                         break;
 782                 case UCC_GETH_NUM_OF_THREADS_6:
 783                         numThreadsTxNumerical = 6;
 784                         break;
 785                 case UCC_GETH_NUM_OF_THREADS_8:
 786                         numThreadsTxNumerical = 8;
 787                         break;
 788                 default:
 789                         numThreadsTxNumerical = 0;
 790                         break;
 791                 }
 792
 793                 ugeth_info("Thread data TXs:");
 794                 ugeth_info("Base address: 0x%08x",
 795                            (u32) ugeth->p_thread_data_tx);
 796                 for (i = 0; i < numThreadsTxNumerical; i++) {
 797                         ugeth_info("Thread data TX[%d]:", i);
 798                         ugeth_info("Base address: 0x%08x",
 799                                    (u32) & ugeth->p_thread_data_tx[i]);
 800                         mem_disp((u8 *) & ugeth->p_thread_data_tx[i],
 801                                  sizeof(struct ucc_geth_thread_data_tx));
 802                 }
 803         }
 804         if (ugeth->p_thread_data_rx) {
 805                 int numThreadsRxNumerical;
 806                 switch (ugeth->ug_info->numThreadsRx) {
 807                 case UCC_GETH_NUM_OF_THREADS_1:
 808                         numThreadsRxNumerical = 1;
 809                         break;
 810                 case UCC_GETH_NUM_OF_THREADS_2:
 811                         numThreadsRxNumerical = 2;
 812                         break;
 813                 case UCC_GETH_NUM_OF_THREADS_4:
 814                         numThreadsRxNumerical = 4;
 815                         break;
 816                 case UCC_GETH_NUM_OF_THREADS_6:
 817                         numThreadsRxNumerical = 6;
 818                         break;
 819                 case UCC_GETH_NUM_OF_THREADS_8:
 820                         numThreadsRxNumerical = 8;
 821                         break;
 822                 default:
 823                         numThreadsRxNumerical = 0;
 824                         break;
 825                 }
 826
 827                 ugeth_info("Thread data RX:");
 828                 ugeth_info("Base address: 0x%08x",
 829                            (u32) ugeth->p_thread_data_rx);
 830                 for (i = 0; i < numThreadsRxNumerical; i++) {
 831                         ugeth_info("Thread data RX[%d]:", i);
 832                         ugeth_info("Base address: 0x%08x",
 833                                    (u32) & ugeth->p_thread_data_rx[i]);
 834                         mem_disp((u8 *) & ugeth->p_thread_data_rx[i],
 835                                  sizeof(struct ucc_geth_thread_data_rx));
 836                 }
 837         }
 838         if (ugeth->p_exf_glbl_param) {
 839                 ugeth_info("EXF global param:");
 840                 ugeth_info("Base address: 0x%08x",
 841                            (u32) ugeth->p_exf_glbl_param);
 842                 mem_disp((u8 *) ugeth->p_exf_glbl_param,
 843                          sizeof(*ugeth->p_exf_glbl_param));
 844         }
 845         if (ugeth->p_tx_glbl_pram) {
 846                 ugeth_info("TX global param:");
 847                 ugeth_info("Base address: 0x%08x", (u32) ugeth->p_tx_glbl_pram);
 848                 ugeth_info("temoder      : addr - 0x%08x, val - 0x%04x",
 849                            (u32) & ugeth->p_tx_glbl_pram->temoder,
 850                            in_be16(&ugeth->p_tx_glbl_pram->temoder));
 851                 ugeth_info("sqptr        : addr - 0x%08x, val - 0x%08x",
 852                            (u32) & ugeth->p_tx_glbl_pram->sqptr,
 853                            in_be32(&ugeth->p_tx_glbl_pram->sqptr));
 854                 ugeth_info("schedulerbasepointer: addr - 0x%08x, val - 0x%08x",
 855                            (u32) & ugeth->p_tx_glbl_pram->schedulerbasepointer,
 856                            in_be32(&ugeth->p_tx_glbl_pram->
 857                                    schedulerbasepointer));
 858                 ugeth_info("txrmonbaseptr: addr - 0x%08x, val - 0x%08x",
 859                            (u32) & ugeth->p_tx_glbl_pram->txrmonbaseptr,
 860                            in_be32(&ugeth->p_tx_glbl_pram->txrmonbaseptr));
 861                 ugeth_info("tstate       : addr - 0x%08x, val - 0x%08x",
 862                            (u32) & ugeth->p_tx_glbl_pram->tstate,
 863                            in_be32(&ugeth->p_tx_glbl_pram->tstate));
 864                 ugeth_info("iphoffset[0] : addr - 0x%08x, val - 0x%02x",
 865                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[0],
 866                            ugeth->p_tx_glbl_pram->iphoffset[0]);
 867                 ugeth_info("iphoffset[1] : addr - 0x%08x, val - 0x%02x",
 868                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[1],
 869                            ugeth->p_tx_glbl_pram->iphoffset[1]);
 870                 ugeth_info("iphoffset[2] : addr - 0x%08x, val - 0x%02x",
 871                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[2],
 872                            ugeth->p_tx_glbl_pram->iphoffset[2]);
 873                 ugeth_info("iphoffset[3] : addr - 0x%08x, val - 0x%02x",
 874                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[3],
 875                            ugeth->p_tx_glbl_pram->iphoffset[3]);
 876                 ugeth_info("iphoffset[4] : addr - 0x%08x, val - 0x%02x",
 877                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[4],
 878                            ugeth->p_tx_glbl_pram->iphoffset[4]);
 879                 ugeth_info("iphoffset[5] : addr - 0x%08x, val - 0x%02x",
 880                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[5],
 881                            ugeth->p_tx_glbl_pram->iphoffset[5]);
 882                 ugeth_info("iphoffset[6] : addr - 0x%08x, val - 0x%02x",
 883                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[6],
 884                            ugeth->p_tx_glbl_pram->iphoffset[6]);
 885                 ugeth_info("iphoffset[7] : addr - 0x%08x, val - 0x%02x",
 886                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[7],
 887                            ugeth->p_tx_glbl_pram->iphoffset[7]);
 888                 ugeth_info("vtagtable[0] : addr - 0x%08x, val - 0x%08x",
 889                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[0],
 890                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[0]));
 891                 ugeth_info("vtagtable[1] : addr - 0x%08x, val - 0x%08x",
 892                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[1],
 893                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[1]));
 894                 ugeth_info("vtagtable[2] : addr - 0x%08x, val - 0x%08x",
 895                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[2],
 896                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[2]));
 897                 ugeth_info("vtagtable[3] : addr - 0x%08x, val - 0x%08x",
 898                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[3],
 899                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[3]));
 900                 ugeth_info("vtagtable[4] : addr - 0x%08x, val - 0x%08x",
 901                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[4],
 902                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[4]));
 903                 ugeth_info("vtagtable[5] : addr - 0x%08x, val - 0x%08x",
 904                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[5],
 905                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[5]));
 906                 ugeth_info("vtagtable[6] : addr - 0x%08x, val - 0x%08x",
 907                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[6],
 908                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[6]));
 909                 ugeth_info("vtagtable[7] : addr - 0x%08x, val - 0x%08x",
 910                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[7],
 911                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[7]));
 912                 ugeth_info("tqptr        : addr - 0x%08x, val - 0x%08x",
 913                            (u32) & ugeth->p_tx_glbl_pram->tqptr,
 914                            in_be32(&ugeth->p_tx_glbl_pram->tqptr));
 915         }
 916         if (ugeth->p_rx_glbl_pram) {
 917                 ugeth_info("RX global param:");
 918                 ugeth_info("Base address: 0x%08x", (u32) ugeth->p_rx_glbl_pram);
 919                 ugeth_info("remoder         : addr - 0x%08x, val - 0x%08x",
 920                            (u32) & ugeth->p_rx_glbl_pram->remoder,
 921                            in_be32(&ugeth->p_rx_glbl_pram->remoder));
 922                 ugeth_info("rqptr           : addr - 0x%08x, val - 0x%08x",
 923                            (u32) & ugeth->p_rx_glbl_pram->rqptr,
 924                            in_be32(&ugeth->p_rx_glbl_pram->rqptr));
 925                 ugeth_info("typeorlen       : addr - 0x%08x, val - 0x%04x",
 926                            (u32) & ugeth->p_rx_glbl_pram->typeorlen,
 927                            in_be16(&ugeth->p_rx_glbl_pram->typeorlen));
 928                 ugeth_info("rxgstpack       : addr - 0x%08x, val - 0x%02x",
 929                            (u32) & ugeth->p_rx_glbl_pram->rxgstpack,
 930                            ugeth->p_rx_glbl_pram->rxgstpack);
 931                 ugeth_info("rxrmonbaseptr   : addr - 0x%08x, val - 0x%08x",
 932                            (u32) & ugeth->p_rx_glbl_pram->rxrmonbaseptr,
 933                            in_be32(&ugeth->p_rx_glbl_pram->rxrmonbaseptr));
 934                 ugeth_info("intcoalescingptr: addr - 0x%08x, val - 0x%08x",
 935                            (u32) & ugeth->p_rx_glbl_pram->intcoalescingptr,
 936                            in_be32(&ugeth->p_rx_glbl_pram->intcoalescingptr));
 937                 ugeth_info("rstate          : addr - 0x%08x, val - 0x%02x",
 938                            (u32) & ugeth->p_rx_glbl_pram->rstate,
 939                            ugeth->p_rx_glbl_pram->rstate);
 940                 ugeth_info("mrblr           : addr - 0x%08x, val - 0x%04x",
 941                            (u32) & ugeth->p_rx_glbl_pram->mrblr,
 942                            in_be16(&ugeth->p_rx_glbl_pram->mrblr));
 943                 ugeth_info("rbdqptr         : addr - 0x%08x, val - 0x%08x",
 944                            (u32) & ugeth->p_rx_glbl_pram->rbdqptr,
 945                            in_be32(&ugeth->p_rx_glbl_pram->rbdqptr));
 946                 ugeth_info("mflr            : addr - 0x%08x, val - 0x%04x",
 947                            (u32) & ugeth->p_rx_glbl_pram->mflr,
 948                            in_be16(&ugeth->p_rx_glbl_pram->mflr));
 949                 ugeth_info("minflr          : addr - 0x%08x, val - 0x%04x",
 950                            (u32) & ugeth->p_rx_glbl_pram->minflr,
 951                            in_be16(&ugeth->p_rx_glbl_pram->minflr));
 952                 ugeth_info("maxd1           : addr - 0x%08x, val - 0x%04x",
 953                            (u32) & ugeth->p_rx_glbl_pram->maxd1,
 954                            in_be16(&ugeth->p_rx_glbl_pram->maxd1));
 955                 ugeth_info("maxd2           : addr - 0x%08x, val - 0x%04x",
 956                            (u32) & ugeth->p_rx_glbl_pram->maxd2,
 957                            in_be16(&ugeth->p_rx_glbl_pram->maxd2));
 958                 ugeth_info("ecamptr         : addr - 0x%08x, val - 0x%08x",
 959                            (u32) & ugeth->p_rx_glbl_pram->ecamptr,
 960                            in_be32(&ugeth->p_rx_glbl_pram->ecamptr));
 961                 ugeth_info("l2qt            : addr - 0x%08x, val - 0x%08x",
 962                            (u32) & ugeth->p_rx_glbl_pram->l2qt,
 963                            in_be32(&ugeth->p_rx_glbl_pram->l2qt));
 964                 ugeth_info("l3qt[0]         : addr - 0x%08x, val - 0x%08x",
 965                            (u32) & ugeth->p_rx_glbl_pram->l3qt[0],
 966                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[0]));
 967                 ugeth_info("l3qt[1]         : addr - 0x%08x, val - 0x%08x",
 968                            (u32) & ugeth->p_rx_glbl_pram->l3qt[1],
 969                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[1]));
 970                 ugeth_info("l3qt[2]         : addr - 0x%08x, val - 0x%08x",
 971                            (u32) & ugeth->p_rx_glbl_pram->l3qt[2],
 972                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[2]));
 973                 ugeth_info("l3qt[3]         : addr - 0x%08x, val - 0x%08x",
 974                            (u32) & ugeth->p_rx_glbl_pram->l3qt[3],
 975                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[3]));
 976                 ugeth_info("l3qt[4]         : addr - 0x%08x, val - 0x%08x",
 977                            (u32) & ugeth->p_rx_glbl_pram->l3qt[4],
 978                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[4]));
 979                 ugeth_info("l3qt[5]         : addr - 0x%08x, val - 0x%08x",
 980                            (u32) & ugeth->p_rx_glbl_pram->l3qt[5],
 981                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[5]));
 982                 ugeth_info("l3qt[6]         : addr - 0x%08x, val - 0x%08x",
 983                            (u32) & ugeth->p_rx_glbl_pram->l3qt[6],
 984                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[6]));
 985                 ugeth_info("l3qt[7]         : addr - 0x%08x, val - 0x%08x",
 986                            (u32) & ugeth->p_rx_glbl_pram->l3qt[7],
 987                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[7]));
 988                 ugeth_info("vlantype        : addr - 0x%08x, val - 0x%04x",
 989                            (u32) & ugeth->p_rx_glbl_pram->vlantype,
 990                            in_be16(&ugeth->p_rx_glbl_pram->vlantype));
 991                 ugeth_info("vlantci         : addr - 0x%08x, val - 0x%04x",
 992                            (u32) & ugeth->p_rx_glbl_pram->vlantci,
 993                            in_be16(&ugeth->p_rx_glbl_pram->vlantci));
 994                 for (i = 0; i < 64; i++)
 995                         ugeth_info
 996                     ("addressfiltering[%d]: addr - 0x%08x, val - 0x%02x",
 997                              i,
 998                              (u32) & ugeth->p_rx_glbl_pram->addressfiltering[i],
 999                              ugeth->p_rx_glbl_pram->addressfiltering[i]);
1000                 ugeth_info("exfGlobalParam  : addr - 0x%08x, val - 0x%08x",
1001                            (u32) & ugeth->p_rx_glbl_pram->exfGlobalParam,
1002                            in_be32(&ugeth->p_rx_glbl_pram->exfGlobalParam));
1003         }
1004         if (ugeth->p_send_q_mem_reg) {
1005                 ugeth_info("Send Q memory registers:");
1006                 ugeth_info("Base address: 0x%08x",
1007                            (u32) ugeth->p_send_q_mem_reg);
1008                 for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) {
1009                         ugeth_info("SQQD[%d]:", i);
1010                         ugeth_info("Base address: 0x%08x",
1011                                    (u32) & ugeth->p_send_q_mem_reg->sqqd[i]);
1012                         mem_disp((u8 *) & ugeth->p_send_q_mem_reg->sqqd[i],
1013                                  sizeof(struct ucc_geth_send_queue_qd));
1014                 }
1015         }
1016         if (ugeth->p_scheduler) {
1017                 ugeth_info("Scheduler:");
1018                 ugeth_info("Base address: 0x%08x", (u32) ugeth->p_scheduler);
1019                 mem_disp((u8 *) ugeth->p_scheduler,
1020                          sizeof(*ugeth->p_scheduler));
1021         }
1022         if (ugeth->p_tx_fw_statistics_pram) {
1023                 ugeth_info("TX FW statistics pram:");
1024                 ugeth_info("Base address: 0x%08x",
1025                            (u32) ugeth->p_tx_fw_statistics_pram);
1026                 mem_disp((u8 *) ugeth->p_tx_fw_statistics_pram,
1027                          sizeof(*ugeth->p_tx_fw_statistics_pram));
1028         }
1029         if (ugeth->p_rx_fw_statistics_pram) {
1030                 ugeth_info("RX FW statistics pram:");
1031                 ugeth_info("Base address: 0x%08x",
1032                            (u32) ugeth->p_rx_fw_statistics_pram);
1033                 mem_disp((u8 *) ugeth->p_rx_fw_statistics_pram,
1034                          sizeof(*ugeth->p_rx_fw_statistics_pram));
1035         }
1036         if (ugeth->p_rx_irq_coalescing_tbl) {
1037                 ugeth_info("RX IRQ coalescing tables:");
1038                 ugeth_info("Base address: 0x%08x",
1039                            (u32) ugeth->p_rx_irq_coalescing_tbl);
1040                 for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
1041                         ugeth_info("RX IRQ coalescing table entry[%d]:", i);
1042                         ugeth_info("Base address: 0x%08x",
1043                                    (u32) & ugeth->p_rx_irq_coalescing_tbl->
1044                                    coalescingentry[i]);
1045                         ugeth_info
1046                 ("interruptcoalescingmaxvalue: addr - 0x%08x, val - 0x%08x",
1047                              (u32) & ugeth->p_rx_irq_coalescing_tbl->
1048                              coalescingentry[i].interruptcoalescingmaxvalue,
1049                              in_be32(&ugeth->p_rx_irq_coalescing_tbl->
1050                                      coalescingentry[i].
1051                                      interruptcoalescingmaxvalue));
1052                         ugeth_info
1053                 ("interruptcoalescingcounter : addr - 0x%08x, val - 0x%08x",
1054                              (u32) & ugeth->p_rx_irq_coalescing_tbl->
1055                              coalescingentry[i].interruptcoalescingcounter,
1056                              in_be32(&ugeth->p_rx_irq_coalescing_tbl->
1057                                      coalescingentry[i].
1058                                      interruptcoalescingcounter));
1059                 }
1060         }
1061         if (ugeth->p_rx_bd_qs_tbl) {
1062                 ugeth_info("RX BD QS tables:");
1063                 ugeth_info("Base address: 0x%08x", (u32) ugeth->p_rx_bd_qs_tbl);
1064                 for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
1065                         ugeth_info("RX BD QS table[%d]:", i);
1066                         ugeth_info("Base address: 0x%08x",
1067                                    (u32) & ugeth->p_rx_bd_qs_tbl[i]);
1068                         ugeth_info
1069                             ("bdbaseptr        : addr - 0x%08x, val - 0x%08x",
1070                              (u32) & ugeth->p_rx_bd_qs_tbl[i].bdbaseptr,
1071                              in_be32(&ugeth->p_rx_bd_qs_tbl[i].bdbaseptr));
1072                         ugeth_info
1073                             ("bdptr            : addr - 0x%08x, val - 0x%08x",
1074                              (u32) & ugeth->p_rx_bd_qs_tbl[i].bdptr,
1075                              in_be32(&ugeth->p_rx_bd_qs_tbl[i].bdptr));
1076                         ugeth_info
1077                             ("externalbdbaseptr: addr - 0x%08x, val - 0x%08x",
1078                              (u32) & ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
1079                              in_be32(&ugeth->p_rx_bd_qs_tbl[i].
1080                                      externalbdbaseptr));
1081                         ugeth_info
1082                             ("externalbdptr    : addr - 0x%08x, val - 0x%08x",
1083                              (u32) & ugeth->p_rx_bd_qs_tbl[i].externalbdptr,
1084                              in_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdptr));
1085                         ugeth_info("ucode RX Prefetched BDs:");
1086                         ugeth_info("Base address: 0x%08x",
1087                                    (u32)
1088                                    qe_muram_addr(in_be32
1089                                                  (&ugeth->p_rx_bd_qs_tbl[i].
1090                                                   bdbaseptr)));
1091                         mem_disp((u8 *)
1092                                  qe_muram_addr(in_be32
1093                                                (&ugeth->p_rx_bd_qs_tbl[i].
1094                                                 bdbaseptr)),
1095                                  sizeof(struct ucc_geth_rx_prefetched_bds));
1096                 }
1097         }
1098         if (ugeth->p_init_enet_param_shadow) {
1099                 int size;
1100                 ugeth_info("Init enet param shadow:");
1101                 ugeth_info("Base address: 0x%08x",
1102                            (u32) ugeth->p_init_enet_param_shadow);
1103                 mem_disp((u8 *) ugeth->p_init_enet_param_shadow,
1104                          sizeof(*ugeth->p_init_enet_param_shadow));
1105
1106                 size = sizeof(struct ucc_geth_thread_rx_pram);
1107                 if (ugeth->ug_info->rxExtendedFiltering) {
1108                         size +=
1109                             THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING;
1110                         if (ugeth->ug_info->largestexternallookupkeysize ==
1111                             QE_FLTR_TABLE_LOOKUP_KEY_SIZE_8_BYTES)
1112                                 size +=
1113                         THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_8;
1114                         if (ugeth->ug_info->largestexternallookupkeysize ==
1115                             QE_FLTR_TABLE_LOOKUP_KEY_SIZE_16_BYTES)
1116                                 size +=
1117                         THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_16;
1118                 }
1119
1120                 dump_init_enet_entries(ugeth,
1121                                        &(ugeth->p_init_enet_param_shadow->
1122                                          txthread[0]),
1123                                        ENET_INIT_PARAM_MAX_ENTRIES_TX,
1124                                        sizeof(struct ucc_geth_thread_tx_pram),
1125                                        ugeth->ug_info->riscTx, 0);
1126                 dump_init_enet_entries(ugeth,
1127                                        &(ugeth->p_init_enet_param_shadow->
1128                                          rxthread[0]),
1129                                        ENET_INIT_PARAM_MAX_ENTRIES_RX, size,
1130                                        ugeth->ug_info->riscRx, 1);
1131         }
1132 }
1133 #endif /* DEBUG */
1134
1135 static void init_default_reg_vals(volatile u32 *upsmr_register,
1136                                   volatile u32 *maccfg1_register,
1137                                   volatile u32 *maccfg2_register)
1138 {
1139         out_be32(upsmr_register, UCC_GETH_UPSMR_INIT);
1140         out_be32(maccfg1_register, UCC_GETH_MACCFG1_INIT);
1141         out_be32(maccfg2_register, UCC_GETH_MACCFG2_INIT);
1142 }
1143
1144 static int init_half_duplex_params(int alt_beb,
1145                                    int back_pressure_no_backoff,
1146                                    int no_backoff,
1147                                    int excess_defer,
1148                                    u8 alt_beb_truncation,
1149                                    u8 max_retransmissions,
1150                                    u8 collision_window,
1151                                    volatile u32 *hafdup_register)
1152 {
1153         u32 value = 0;
1154
1155         if ((alt_beb_truncation > HALFDUP_ALT_BEB_TRUNCATION_MAX) ||
1156             (max_retransmissions > HALFDUP_MAX_RETRANSMISSION_MAX) ||
1157             (collision_window > HALFDUP_COLLISION_WINDOW_MAX))
1158                 return -EINVAL;
1159
1160         value = (u32) (alt_beb_truncation << HALFDUP_ALT_BEB_TRUNCATION_SHIFT);
1161
1162         if (alt_beb)
1163                 value |= HALFDUP_ALT_BEB;
1164         if (back_pressure_no_backoff)
1165                 value |= HALFDUP_BACK_PRESSURE_NO_BACKOFF;
1166         if (no_backoff)
1167                 value |= HALFDUP_NO_BACKOFF;
1168         if (excess_defer)
1169                 value |= HALFDUP_EXCESSIVE_DEFER;
1170
1171         value |= (max_retransmissions << HALFDUP_MAX_RETRANSMISSION_SHIFT);
1172
1173         value |= collision_window;
1174
1175         out_be32(hafdup_register, value);
1176         return 0;
1177 }
1178
1179 static int init_inter_frame_gap_params(u8 non_btb_cs_ipg,
1180                                        u8 non_btb_ipg,
1181                                        u8 min_ifg,
1182                                        u8 btb_ipg,
1183                                        volatile u32 *ipgifg_register)
1184 {
1185         u32 value = 0;
1186
1187         /* Non-Back-to-back IPG part 1 should be <= Non-Back-to-back
1188         IPG part 2 */
1189         if (non_btb_cs_ipg > non_btb_ipg)
1190                 return -EINVAL;
1191
1192         if ((non_btb_cs_ipg > IPGIFG_NON_BACK_TO_BACK_IFG_PART1_MAX) ||
1193             (non_btb_ipg > IPGIFG_NON_BACK_TO_BACK_IFG_PART2_MAX) ||
1194             /*(min_ifg        > IPGIFG_MINIMUM_IFG_ENFORCEMENT_MAX) || */
1195             (btb_ipg > IPGIFG_BACK_TO_BACK_IFG_MAX))
1196                 return -EINVAL;
1197
1198         value |=
1199             ((non_btb_cs_ipg << IPGIFG_NON_BACK_TO_BACK_IFG_PART1_SHIFT) &
1200              IPGIFG_NBTB_CS_IPG_MASK);
1201         value |=
1202             ((non_btb_ipg << IPGIFG_NON_BACK_TO_BACK_IFG_PART2_SHIFT) &
1203              IPGIFG_NBTB_IPG_MASK);
1204         value |=
1205             ((min_ifg << IPGIFG_MINIMUM_IFG_ENFORCEMENT_SHIFT) &
1206              IPGIFG_MIN_IFG_MASK);
1207         value |= (btb_ipg & IPGIFG_BTB_IPG_MASK);
1208
1209         out_be32(ipgifg_register, value);
1210         return 0;
1211 }
1212
1213 int init_flow_control_params(u32 automatic_flow_control_mode,
1214                                     int rx_flow_control_enable,
1215                                     int tx_flow_control_enable,
1216                                     u16 pause_period,
1217                                     u16 extension_field,
1218                                     volatile u32 *upsmr_register,
1219                                     volatile u32 *uempr_register,
1220                                     volatile u32 *maccfg1_register)
1221 {
1222         u32 value = 0;
1223
1224         /* Set UEMPR register */
1225         value = (u32) pause_period << UEMPR_PAUSE_TIME_VALUE_SHIFT;
1226         value |= (u32) extension_field << UEMPR_EXTENDED_PAUSE_TIME_VALUE_SHIFT;
1227         out_be32(uempr_register, value);
1228
1229         /* Set UPSMR register */
1230         value = in_be32(upsmr_register);
1231         value |= automatic_flow_control_mode;
1232         out_be32(upsmr_register, value);
1233
1234         value = in_be32(maccfg1_register);
1235         if (rx_flow_control_enable)
1236                 value |= MACCFG1_FLOW_RX;
1237         if (tx_flow_control_enable)
1238                 value |= MACCFG1_FLOW_TX;
1239         out_be32(maccfg1_register, value);
1240
1241         return 0;
1242 }
1243
1244 static int init_hw_statistics_gathering_mode(int enable_hardware_statistics,
1245                                              int auto_zero_hardware_statistics,
1246                                              volatile u32 *upsmr_register,
1247                                              volatile u16 *uescr_register)
1248 {
1249         u32 upsmr_value = 0;
1250         u16 uescr_value = 0;
1251         /* Enable hardware statistics gathering if requested */
1252         if (enable_hardware_statistics) {
1253                 upsmr_value = in_be32(upsmr_register);
1254                 upsmr_value |= UPSMR_HSE;
1255                 out_be32(upsmr_register, upsmr_value);
1256         }
1257
1258         /* Clear hardware statistics counters */
1259         uescr_value = in_be16(uescr_register);
1260         uescr_value |= UESCR_CLRCNT;
1261         /* Automatically zero hardware statistics counters on read,
1262         if requested */
1263         if (auto_zero_hardware_statistics)
1264                 uescr_value |= UESCR_AUTOZ;
1265         out_be16(uescr_register, uescr_value);
1266
1267         return 0;
1268 }
1269
1270 static int init_firmware_statistics_gathering_mode(int
1271                 enable_tx_firmware_statistics,
1272                 int enable_rx_firmware_statistics,
1273                 volatile u32 *tx_rmon_base_ptr,
1274                 u32 tx_firmware_statistics_structure_address,
1275                 volatile u32 *rx_rmon_base_ptr,
1276                 u32 rx_firmware_statistics_structure_address,
1277                 volatile u16 *temoder_register,
1278                 volatile u32 *remoder_register)
1279 {
1280         /* Note: this function does not check if */
1281         /* the parameters it receives are NULL   */
1282         u16 temoder_value;
1283         u32 remoder_value;
1284
1285         if (enable_tx_firmware_statistics) {
1286                 out_be32(tx_rmon_base_ptr,
1287                          tx_firmware_statistics_structure_address);
1288                 temoder_value = in_be16(temoder_register);
1289                 temoder_value |= TEMODER_TX_RMON_STATISTICS_ENABLE;
1290                 out_be16(temoder_register, temoder_value);
1291         }
1292
1293         if (enable_rx_firmware_statistics) {
1294                 out_be32(rx_rmon_base_ptr,
1295                          rx_firmware_statistics_structure_address);
1296                 remoder_value = in_be32(remoder_register);
1297                 remoder_value |= REMODER_RX_RMON_STATISTICS_ENABLE;
1298                 out_be32(remoder_register, remoder_value);
1299         }
1300
1301         return 0;
1302 }
1303
1304 static int init_mac_station_addr_regs(u8 address_byte_0,
1305                                       u8 address_byte_1,
1306                                       u8 address_byte_2,
1307                                       u8 address_byte_3,
1308                                       u8 address_byte_4,
1309                                       u8 address_byte_5,
1310                                       volatile u32 *macstnaddr1_register,
1311                                       volatile u32 *macstnaddr2_register)
1312 {
1313         u32 value = 0;
1314
1315         /* Example: for a station address of 0x12345678ABCD, */
1316         /* 0x12 is byte 0, 0x34 is byte 1 and so on and 0xCD is byte 5 */
1317
1318         /* MACSTNADDR1 Register: */
1319
1320         /* 0                      7   8                      15  */
1321         /* station address byte 5     station address byte 4     */
1322         /* 16                     23  24                     31  */
1323         /* station address byte 3     station address byte 2     */
1324         value |= (u32) ((address_byte_2 << 0) & 0x000000FF);
1325         value |= (u32) ((address_byte_3 << 8) & 0x0000FF00);
1326         value |= (u32) ((address_byte_4 << 16) & 0x00FF0000);
1327         value |= (u32) ((address_byte_5 << 24) & 0xFF000000);
1328
1329         out_be32(macstnaddr1_register, value);
1330
1331         /* MACSTNADDR2 Register: */
1332
1333         /* 0                      7   8                      15  */
1334         /* station address byte 1     station address byte 0     */
1335         /* 16                     23  24                     31  */
1336         /*         reserved                   reserved           */
1337         value = 0;
1338         value |= (u32) ((address_byte_0 << 16) & 0x00FF0000);
1339         value |= (u32) ((address_byte_1 << 24) & 0xFF000000);
1340
1341         out_be32(macstnaddr2_register, value);
1342
1343         return 0;
1344 }
1345
1346 static int init_check_frame_length_mode(int length_check,
1347                                         volatile u32 *maccfg2_register)
1348 {
1349         u32 value = 0;
1350
1351         value = in_be32(maccfg2_register);
1352
1353         if (length_check)
1354                 value |= MACCFG2_LC;
1355         else
1356                 value &= ~MACCFG2_LC;
1357
1358         out_be32(maccfg2_register, value);
1359         return 0;
1360 }
1361
1362 static int init_preamble_length(u8 preamble_length,
1363                                 volatile u32 *maccfg2_register)
1364 {
1365         u32 value = 0;
1366
1367         if ((preamble_length < 3) || (preamble_length > 7))
1368                 return -EINVAL;
1369
1370         value = in_be32(maccfg2_register);
1371         value &= ~MACCFG2_PREL_MASK;
1372         value |= (preamble_length << MACCFG2_PREL_SHIFT);
1373         out_be32(maccfg2_register, value);
1374         return 0;
1375 }
1376
1377 static int init_rx_parameters(int reject_broadcast,
1378                               int receive_short_frames,
1379                               int promiscuous, volatile u32 *upsmr_register)
1380 {
1381         u32 value = 0;
1382
1383         value = in_be32(upsmr_register);
1384
1385         if (reject_broadcast)
1386                 value |= UPSMR_BRO;
1387         else
1388                 value &= ~UPSMR_BRO;
1389
1390         if (receive_short_frames)
1391                 value |= UPSMR_RSH;
1392         else
1393                 value &= ~UPSMR_RSH;
1394
1395         if (promiscuous)
1396                 value |= UPSMR_PRO;
1397         else
1398                 value &= ~UPSMR_PRO;
1399
1400         out_be32(upsmr_register, value);
1401
1402         return 0;
1403 }
1404
1405 static int init_max_rx_buff_len(u16 max_rx_buf_len,
1406                                 volatile u16 *mrblr_register)
1407 {
1408         /* max_rx_buf_len value must be a multiple of 128 */
1409         if ((max_rx_buf_len == 0)
1410             || (max_rx_buf_len % UCC_GETH_MRBLR_ALIGNMENT))
1411                 return -EINVAL;
1412
1413         out_be16(mrblr_register, max_rx_buf_len);
1414         return 0;
1415 }
1416
1417 static int init_min_frame_len(u16 min_frame_length,
1418                               volatile u16 *minflr_register,
1419                               volatile u16 *mrblr_register)
1420 {
1421         u16 mrblr_value = 0;
1422
1423         mrblr_value = in_be16(mrblr_register);
1424         if (min_frame_length >= (mrblr_value - 4))
1425                 return -EINVAL;
1426
1427         out_be16(minflr_register, min_frame_length);
1428         return 0;
1429 }
1430
1431 static int adjust_enet_interface(struct ucc_geth_private *ugeth)
1432 {
1433         struct ucc_geth_info *ug_info;
1434         struct ucc_geth *ug_regs;
1435         struct ucc_fast *uf_regs;
1436         int ret_val;
1437         u32 upsmr, maccfg2, tbiBaseAddress;
1438         u16 value;
1439
1440         ugeth_vdbg("%s: IN", __FUNCTION__);
1441
1442         ug_info = ugeth->ug_info;
1443         ug_regs = ugeth->ug_regs;
1444         uf_regs = ugeth->uccf->uf_regs;
1445
1446         /*                    Set MACCFG2                    */
1447         maccfg2 = in_be32(&ug_regs->maccfg2);
1448         maccfg2 &= ~MACCFG2_INTERFACE_MODE_MASK;
1449         if ((ugeth->max_speed == SPEED_10) ||
1450             (ugeth->max_speed == SPEED_100))
1451                 maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
1452         else if (ugeth->max_speed == SPEED_1000)
1453                 maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE;
1454         maccfg2 |= ug_info->padAndCrc;
1455         out_be32(&ug_regs->maccfg2, maccfg2);
1456
1457         /*                    Set UPSMR                      */
1458         upsmr = in_be32(&uf_regs->upsmr);
1459         upsmr &= ~(UPSMR_RPM | UPSMR_R10M | UPSMR_TBIM | UPSMR_RMM);
1460         if ((ugeth->phy_interface == PHY_INTERFACE_MODE_RMII) ||
1461             (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII) ||
1462             (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_ID) ||
1463             (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1464                 upsmr |= UPSMR_RPM;
1465                 switch (ugeth->max_speed) {
1466                 case SPEED_10:
1467                         upsmr |= UPSMR_R10M;
1468                         /* FALLTHROUGH */
1469                 case SPEED_100:
1470                         if (ugeth->phy_interface != PHY_INTERFACE_MODE_RTBI)
1471                                 upsmr |= UPSMR_RMM;
1472                 }
1473         }
1474         if ((ugeth->phy_interface == PHY_INTERFACE_MODE_TBI) ||
1475             (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1476                 upsmr |= UPSMR_TBIM;
1477         }
1478         out_be32(&uf_regs->upsmr, upsmr);
1479
1480         /* Disable autonegotiation in tbi mode, because by default it
1481         comes up in autonegotiation mode. */
1482         /* Note that this depends on proper setting in utbipar register. */
1483         if ((ugeth->phy_interface == PHY_INTERFACE_MODE_TBI) ||
1484             (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1485                 tbiBaseAddress = in_be32(&ug_regs->utbipar);
1486                 tbiBaseAddress &= UTBIPAR_PHY_ADDRESS_MASK;
1487                 tbiBaseAddress >>= UTBIPAR_PHY_ADDRESS_SHIFT;
1488                 value = ugeth->phydev->bus->read(ugeth->phydev->bus,
1489                                 (u8) tbiBaseAddress, ENET_TBI_MII_CR);
1490                 value &= ~0x1000;       /* Turn off autonegotiation */
1491                 ugeth->phydev->bus->write(ugeth->phydev->bus,
1492                                 (u8) tbiBaseAddress, ENET_TBI_MII_CR, value);
1493         }
1494
1495         init_check_frame_length_mode(ug_info->lengthCheckRx, &ug_regs->maccfg2);
1496
1497         ret_val = init_preamble_length(ug_info->prel, &ug_regs->maccfg2);
1498         if (ret_val != 0) {
1499                 if (netif_msg_probe(ugeth))
1500                         ugeth_err("%s: Preamble length must be between 3 and 7 inclusive.",
1501                              __FUNCTION__);
1502                 return ret_val;
1503         }
1504
1505         return 0;
1506 }
1507
1508 /* Called every time the controller might need to be made
1509  * aware of new link state.  The PHY code conveys this
1510  * information through variables in the ugeth structure, and this
1511  * function converts those variables into the appropriate
1512  * register values, and can bring down the device if needed.
1513  */
1514
1515 static void adjust_link(struct net_device *dev)
1516 {
1517         struct ucc_geth_private *ugeth = netdev_priv(dev);
1518         struct ucc_geth *ug_regs;
1519         struct ucc_fast *uf_regs;
1520         struct phy_device *phydev = ugeth->phydev;
1521         unsigned long flags;
1522         int new_state = 0;
1523
1524         ug_regs = ugeth->ug_regs;
1525         uf_regs = ugeth->uccf->uf_regs;
1526
1527         spin_lock_irqsave(&ugeth->lock, flags);
1528
1529         if (phydev->link) {
1530                 u32 tempval = in_be32(&ug_regs->maccfg2);
1531                 u32 upsmr = in_be32(&uf_regs->upsmr);
1532                 /* Now we make sure that we can be in full duplex mode.
1533                  * If not, we operate in half-duplex mode. */
1534                 if (phydev->duplex != ugeth->oldduplex) {
1535                         new_state = 1;
1536                         if (!(phydev->duplex))
1537                                 tempval &= ~(MACCFG2_FDX);
1538                         else
1539                                 tempval |= MACCFG2_FDX;
1540                         ugeth->oldduplex = phydev->duplex;
1541                 }
1542
1543                 if (phydev->speed != ugeth->oldspeed) {
1544                         new_state = 1;
1545                         switch (phydev->speed) {
1546                         case SPEED_1000:
1547                                 tempval = ((tempval &
1548                                             ~(MACCFG2_INTERFACE_MODE_MASK)) |
1549                                             MACCFG2_INTERFACE_MODE_BYTE);
1550                                 break;
1551                         case SPEED_100:
1552                         case SPEED_10:
1553                                 tempval = ((tempval &
1554                                             ~(MACCFG2_INTERFACE_MODE_MASK)) |
1555                                             MACCFG2_INTERFACE_MODE_NIBBLE);
1556                                 /* if reduced mode, re-set UPSMR.R10M */
1557                                 if ((ugeth->phy_interface == PHY_INTERFACE_MODE_RMII) ||
1558                                     (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII) ||
1559                                     (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_ID) ||
1560                                     (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1561                                         if (phydev->speed == SPEED_10)
1562                                                 upsmr |= UPSMR_R10M;
1563                                         else
1564                                                 upsmr &= ~(UPSMR_R10M);
1565                                 }
1566                                 break;
1567                         default:
1568                                 if (netif_msg_link(ugeth))
1569                                         ugeth_warn(
1570                                                 "%s: Ack!  Speed (%d) is not 10/100/1000!",
1571                                                 dev->name, phydev->speed);
1572                                 break;
1573                         }
1574                         ugeth->oldspeed = phydev->speed;
1575                 }
1576
1577                 out_be32(&ug_regs->maccfg2, tempval);
1578                 out_be32(&uf_regs->upsmr, upsmr);
1579
1580                 if (!ugeth->oldlink) {
1581                         new_state = 1;
1582                         ugeth->oldlink = 1;
1583                         netif_schedule(dev);
1584                 }
1585         } else if (ugeth->oldlink) {
1586                         new_state = 1;
1587                         ugeth->oldlink = 0;
1588                         ugeth->oldspeed = 0;
1589                         ugeth->oldduplex = -1;
1590         }
1591
1592         if (new_state && netif_msg_link(ugeth))
1593                 phy_print_status(phydev);
1594
1595         spin_unlock_irqrestore(&ugeth->lock, flags);
1596 }
1597
1598 /* Configure the PHY for dev.
1599  * returns 0 if success.  -1 if failure
1600  */
1601 static int init_phy(struct net_device *dev)
1602 {
1603         struct ucc_geth_private *priv = netdev_priv(dev);
1604         struct phy_device *phydev;
1605         char phy_id[BUS_ID_SIZE];
1606
1607         priv->oldlink = 0;
1608         priv->oldspeed = 0;
1609         priv->oldduplex = -1;
1610
1611         snprintf(phy_id, BUS_ID_SIZE, PHY_ID_FMT, priv->ug_info->mdio_bus,
1612                         priv->ug_info->phy_address);
1613
1614         phydev = phy_connect(dev, phy_id, &adjust_link, 0, priv->phy_interface);
1615
1616         if (IS_ERR(phydev)) {
1617                 printk("%s: Could not attach to PHY\n", dev->name);
1618                 return PTR_ERR(phydev);
1619         }
1620
1621         phydev->supported &= (ADVERTISED_10baseT_Half |
1622                                  ADVERTISED_10baseT_Full |
1623                                  ADVERTISED_100baseT_Half |
1624                                  ADVERTISED_100baseT_Full);
1625
1626         if (priv->max_speed == SPEED_1000)
1627                 phydev->supported |= ADVERTISED_1000baseT_Full;
1628
1629         phydev->advertising = phydev->supported;
1630
1631         priv->phydev = phydev;
1632
1633         return 0;
1634 }
1635
1636
1637
1638 static int ugeth_graceful_stop_tx(struct ucc_geth_private *ugeth)
1639 {
1640         struct ucc_fast_private *uccf;
1641         u32 cecr_subblock;
1642         u32 temp;
1643
1644         uccf = ugeth->uccf;
1645
1646         /* Mask GRACEFUL STOP TX interrupt bit and clear it */
1647         temp = in_be32(uccf->p_uccm);
1648         temp &= ~UCCE_GRA;
1649         out_be32(uccf->p_uccm, temp);
1650         out_be32(uccf->p_ucce, UCCE_GRA);       /* clear by writing 1 */
1651
1652         /* Issue host command */
1653         cecr_subblock =
1654             ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
1655         qe_issue_cmd(QE_GRACEFUL_STOP_TX, cecr_subblock,
1656                      QE_CR_PROTOCOL_ETHERNET, 0);
1657
1658         /* Wait for command to complete */
1659         do {
1660                 temp = in_be32(uccf->p_ucce);
1661         } while (!(temp & UCCE_GRA));
1662
1663         uccf->stopped_tx = 1;
1664
1665         return 0;
1666 }
1667
1668 static int ugeth_graceful_stop_rx(struct ucc_geth_private * ugeth)
1669 {
1670         struct ucc_fast_private *uccf;
1671         u32 cecr_subblock;
1672         u8 temp;
1673
1674         uccf = ugeth->uccf;
1675
1676         /* Clear acknowledge bit */
1677         temp = ugeth->p_rx_glbl_pram->rxgstpack;
1678         temp &= ~GRACEFUL_STOP_ACKNOWLEDGE_RX;
1679         ugeth->p_rx_glbl_pram->rxgstpack = temp;
1680
1681         /* Keep issuing command and checking acknowledge bit until
1682         it is asserted, according to spec */
1683         do {
1684                 /* Issue host command */
1685                 cecr_subblock =
1686                     ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.
1687                                                 ucc_num);
1688                 qe_issue_cmd(QE_GRACEFUL_STOP_RX, cecr_subblock,
1689                              QE_CR_PROTOCOL_ETHERNET, 0);
1690
1691                 temp = ugeth->p_rx_glbl_pram->rxgstpack;
1692         } while (!(temp & GRACEFUL_STOP_ACKNOWLEDGE_RX));
1693
1694         uccf->stopped_rx = 1;
1695
1696         return 0;
1697 }
1698
1699 static int ugeth_restart_tx(struct ucc_geth_private *ugeth)
1700 {
1701         struct ucc_fast_private *uccf;
1702         u32 cecr_subblock;
1703
1704         uccf = ugeth->uccf;
1705
1706         cecr_subblock =
1707             ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
1708         qe_issue_cmd(QE_RESTART_TX, cecr_subblock, QE_CR_PROTOCOL_ETHERNET, 0);
1709         uccf->stopped_tx = 0;
1710
1711         return 0;
1712 }
1713
1714 static int ugeth_restart_rx(struct ucc_geth_private *ugeth)
1715 {
1716         struct ucc_fast_private *uccf;
1717         u32 cecr_subblock;
1718
1719         uccf = ugeth->uccf;
1720
1721         cecr_subblock =
1722             ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
1723         qe_issue_cmd(QE_RESTART_RX, cecr_subblock, QE_CR_PROTOCOL_ETHERNET,
1724                      0);
1725         uccf->stopped_rx = 0;
1726
1727         return 0;
1728 }
1729
1730 static int ugeth_enable(struct ucc_geth_private *ugeth, enum comm_dir mode)
1731 {
1732         struct ucc_fast_private *uccf;
1733         int enabled_tx, enabled_rx;
1734
1735         uccf = ugeth->uccf;
1736
1737         /* check if the UCC number is in range. */
1738         if (ugeth->ug_info->uf_info.ucc_num >= UCC_MAX_NUM) {
1739                 if (netif_msg_probe(ugeth))
1740                         ugeth_err("%s: ucc_num out of range.", __FUNCTION__);
1741                 return -EINVAL;
1742         }
1743
1744         enabled_tx = uccf->enabled_tx;
1745         enabled_rx = uccf->enabled_rx;
1746
1747         /* Get Tx and Rx going again, in case this channel was actively
1748         disabled. */
1749         if ((mode & COMM_DIR_TX) && (!enabled_tx) && uccf->stopped_tx)
1750                 ugeth_restart_tx(ugeth);
1751         if ((mode & COMM_DIR_RX) && (!enabled_rx) && uccf->stopped_rx)
1752                 ugeth_restart_rx(ugeth);
1753
1754         ucc_fast_enable(uccf, mode);    /* OK to do even if not disabled */
1755
1756         return 0;
1757
1758 }
1759
1760 static int ugeth_disable(struct ucc_geth_private * ugeth, enum comm_dir mode)
1761 {
1762         struct ucc_fast_private *uccf;
1763
1764         uccf = ugeth->uccf;
1765
1766         /* check if the UCC number is in range. */
1767         if (ugeth->ug_info->uf_info.ucc_num >= UCC_MAX_NUM) {
1768                 if (netif_msg_probe(ugeth))
1769                         ugeth_err("%s: ucc_num out of range.", __FUNCTION__);
1770                 return -EINVAL;
1771         }
1772
1773         /* Stop any transmissions */
1774         if ((mode & COMM_DIR_TX) && uccf->enabled_tx && !uccf->stopped_tx)
1775                 ugeth_graceful_stop_tx(ugeth);
1776
1777         /* Stop any receptions */
1778         if ((mode & COMM_DIR_RX) && uccf->enabled_rx && !uccf->stopped_rx)
1779                 ugeth_graceful_stop_rx(ugeth);
1780
1781         ucc_fast_disable(ugeth->uccf, mode); /* OK to do even if not enabled */
1782
1783         return 0;
1784 }
1785
1786 static void ugeth_dump_regs(struct ucc_geth_private *ugeth)
1787 {
1788 #ifdef DEBUG
1789         ucc_fast_dump_regs(ugeth->uccf);
1790         dump_regs(ugeth);
1791         dump_bds(ugeth);
1792 #endif
1793 }
1794
1795 #ifdef CONFIG_UGETH_FILTERING
1796 static int ugeth_ext_filtering_serialize_tad(struct ucc_geth_tad_params *
1797                                              p_UccGethTadParams,
1798                                              struct qe_fltr_tad *qe_fltr_tad)
1799 {
1800         u16 temp;
1801
1802         /* Zero serialized TAD */
1803         memset(qe_fltr_tad, 0, QE_FLTR_TAD_SIZE);
1804
1805         qe_fltr_tad->serialized[0] |= UCC_GETH_TAD_V;   /* Must have this */
1806         if (p_UccGethTadParams->rx_non_dynamic_extended_features_mode ||
1807             (p_UccGethTadParams->vtag_op != UCC_GETH_VLAN_OPERATION_TAGGED_NOP)
1808             || (p_UccGethTadParams->vnontag_op !=
1809                 UCC_GETH_VLAN_OPERATION_NON_TAGGED_NOP)
1810             )
1811                 qe_fltr_tad->serialized[0] |= UCC_GETH_TAD_EF;
1812         if (p_UccGethTadParams->reject_frame)
1813                 qe_fltr_tad->serialized[0] |= UCC_GETH_TAD_REJ;
1814         temp =
1815             (u16) (((u16) p_UccGethTadParams->
1816                     vtag_op) << UCC_GETH_TAD_VTAG_OP_SHIFT);
1817         qe_fltr_tad->serialized[0] |= (u8) (temp >> 8); /* upper bits */
1818
1819         qe_fltr_tad->serialized[1] |= (u8) (temp & 0x00ff);     /* lower bits */
1820         if (p_UccGethTadParams->vnontag_op ==
1821             UCC_GETH_VLAN_OPERATION_NON_TAGGED_Q_TAG_INSERT)
1822                 qe_fltr_tad->serialized[1] |= UCC_GETH_TAD_V_NON_VTAG_OP;
1823         qe_fltr_tad->serialized[1] |=
1824             p_UccGethTadParams->rqos << UCC_GETH_TAD_RQOS_SHIFT;
1825
1826         qe_fltr_tad->serialized[2] |=
1827             p_UccGethTadParams->vpri << UCC_GETH_TAD_V_PRIORITY_SHIFT;
1828         /* upper bits */
1829         qe_fltr_tad->serialized[2] |= (u8) (p_UccGethTadParams->vid >> 8);
1830         /* lower bits */
1831         qe_fltr_tad->serialized[3] |= (u8) (p_UccGethTadParams->vid & 0x00ff);
1832
1833         return 0;
1834 }
1835
1836 static struct enet_addr_container_t
1837     *ugeth_82xx_filtering_get_match_addr_in_hash(struct ucc_geth_private *ugeth,
1838                                                  struct enet_addr *p_enet_addr)
1839 {
1840         struct enet_addr_container *enet_addr_cont;
1841         struct list_head *p_lh;
1842         u16 i, num;
1843         int32_t j;
1844         u8 *p_counter;
1845
1846         if ((*p_enet_addr)[0] & ENET_GROUP_ADDR) {
1847                 p_lh = &ugeth->group_hash_q;
1848                 p_counter = &(ugeth->numGroupAddrInHash);
1849         } else {
1850                 p_lh = &ugeth->ind_hash_q;
1851                 p_counter = &(ugeth->numIndAddrInHash);
1852         }
1853
1854         if (!p_lh)
1855                 return NULL;
1856
1857         num = *p_counter;
1858
1859         for (i = 0; i < num; i++) {
1860                 enet_addr_cont =
1861                     (struct enet_addr_container *)
1862                     ENET_ADDR_CONT_ENTRY(dequeue(p_lh));
1863                 for (j = ENET_NUM_OCTETS_PER_ADDRESS - 1; j >= 0; j--) {
1864                         if ((*p_enet_addr)[j] != (enet_addr_cont->address)[j])
1865                                 break;
1866                         if (j == 0)
1867                                 return enet_addr_cont;  /* Found */
1868                 }
1869                 enqueue(p_lh, &enet_addr_cont->node);   /* Put it back */
1870         }
1871         return NULL;
1872 }
1873
1874 static int ugeth_82xx_filtering_add_addr_in_hash(struct ucc_geth_private *ugeth,
1875                                                  struct enet_addr *p_enet_addr)
1876 {
1877         enum ucc_geth_enet_address_recognition_location location;
1878         struct enet_addr_container *enet_addr_cont;
1879         struct list_head *p_lh;
1880         u8 i;
1881         u32 limit;
1882         u8 *p_counter;
1883
1884         if ((*p_enet_addr)[0] & ENET_GROUP_ADDR) {
1885                 p_lh = &ugeth->group_hash_q;
1886                 limit = ugeth->ug_info->maxGroupAddrInHash;
1887                 location =
1888                     UCC_GETH_ENET_ADDRESS_RECOGNITION_LOCATION_GROUP_HASH;
1889                 p_counter = &(ugeth->numGroupAddrInHash);
1890         } else {
1891                 p_lh = &ugeth->ind_hash_q;
1892                 limit = ugeth->ug_info->maxIndAddrInHash;
1893                 location =
1894                     UCC_GETH_ENET_ADDRESS_RECOGNITION_LOCATION_INDIVIDUAL_HASH;
1895                 p_counter = &(ugeth->numIndAddrInHash);
1896         }
1897
1898         if ((enet_addr_cont =
1899              ugeth_82xx_filtering_get_match_addr_in_hash(ugeth, p_enet_addr))) {
1900                 list_add(p_lh, &enet_addr_cont->node);  /* Put it back */
1901                 return 0;
1902         }
1903         if ((!p_lh) || (!(*p_counter < limit)))
1904                 return -EBUSY;
1905         if (!(enet_addr_cont = get_enet_addr_container()))
1906                 return -ENOMEM;
1907         for (i = 0; i < ENET_NUM_OCTETS_PER_ADDRESS; i++)
1908                 (enet_addr_cont->address)[i] = (*p_enet_addr)[i];
1909         enet_addr_cont->location = location;
1910         enqueue(p_lh, &enet_addr_cont->node);   /* Put it back */
1911         ++(*p_counter);
1912
1913         hw_add_addr_in_hash(ugeth, enet_addr_cont->address);
1914         return 0;
1915 }
1916
1917 static int ugeth_82xx_filtering_clear_addr_in_hash(struct ucc_geth_private *ugeth,
1918                                                    struct enet_addr *p_enet_addr)
1919 {
1920         struct ucc_geth_82xx_address_filtering_pram *p_82xx_addr_filt;
1921         struct enet_addr_container *enet_addr_cont;
1922         struct ucc_fast_private *uccf;
1923         enum comm_dir comm_dir;
1924         u16 i, num;
1925         struct list_head *p_lh;
1926         u32 *addr_h, *addr_l;
1927         u8 *p_counter;
1928
1929         uccf = ugeth->uccf;
1930
1931         p_82xx_addr_filt =
1932             (struct ucc_geth_82xx_address_filtering_pram *) ugeth->p_rx_glbl_pram->
1933             addressfiltering;
1934
1935         if (!
1936             (enet_addr_cont =
1937              ugeth_82xx_filtering_get_match_addr_in_hash(ugeth, p_enet_addr)))
1938                 return -ENOENT;
1939
1940         /* It's been found and removed from the CQ. */
1941         /* Now destroy its container */
1942         put_enet_addr_container(enet_addr_cont);
1943
1944         if ((*p_enet_addr)[0] & ENET_GROUP_ADDR) {
1945                 addr_h = &(p_82xx_addr_filt->gaddr_h);
1946                 addr_l = &(p_82xx_addr_filt->gaddr_l);
1947                 p_lh = &ugeth->group_hash_q;
1948                 p_counter = &(ugeth->numGroupAddrInHash);
1949         } else {
1950                 addr_h = &(p_82xx_addr_filt->iaddr_h);
1951                 addr_l = &(p_82xx_addr_filt->iaddr_l);
1952                 p_lh = &ugeth->ind_hash_q;
1953                 p_counter = &(ugeth->numIndAddrInHash);
1954         }
1955
1956         comm_dir = 0;
1957         if (uccf->enabled_tx)
1958                 comm_dir |= COMM_DIR_TX;
1959         if (uccf->enabled_rx)
1960                 comm_dir |= COMM_DIR_RX;
1961         if (comm_dir)
1962                 ugeth_disable(ugeth, comm_dir);
1963
1964         /* Clear the hash table. */
1965         out_be32(addr_h, 0x00000000);
1966         out_be32(addr_l, 0x00000000);
1967
1968         /* Add all remaining CQ elements back into hash */
1969         num = --(*p_counter);
1970         for (i = 0; i < num; i++) {
1971                 enet_addr_cont =
1972                     (struct enet_addr_container *)
1973                     ENET_ADDR_CONT_ENTRY(dequeue(p_lh));
1974                 hw_add_addr_in_hash(ugeth, enet_addr_cont->address);
1975                 enqueue(p_lh, &enet_addr_cont->node);   /* Put it back */
1976         }
1977
1978         if (comm_dir)
1979                 ugeth_enable(ugeth, comm_dir);
1980
1981         return 0;
1982 }
1983 #endif /* CONFIG_UGETH_FILTERING */
1984
1985 static int ugeth_82xx_filtering_clear_all_addr_in_hash(struct ucc_geth_private *
1986                                                        ugeth,
1987                                                        enum enet_addr_type
1988                                                        enet_addr_type)
1989 {
1990         struct ucc_geth_82xx_address_filtering_pram *p_82xx_addr_filt;
1991         struct ucc_fast_private *uccf;
1992         enum comm_dir comm_dir;
1993         struct list_head *p_lh;
1994         u16 i, num;
1995         u32 *addr_h, *addr_l;
1996         u8 *p_counter;
1997
1998         uccf = ugeth->uccf;
1999
2000         p_82xx_addr_filt =
2001             (struct ucc_geth_82xx_address_filtering_pram *) ugeth->p_rx_glbl_pram->
2002             addressfiltering;
2003
2004         if (enet_addr_type == ENET_ADDR_TYPE_GROUP) {
2005                 addr_h = &(p_82xx_addr_filt->gaddr_h);
2006                 addr_l = &(p_82xx_addr_filt->gaddr_l);
2007                 p_lh = &ugeth->group_hash_q;
2008                 p_counter = &(ugeth->numGroupAddrInHash);
2009         } else if (enet_addr_type == ENET_ADDR_TYPE_INDIVIDUAL) {
2010                 addr_h = &(p_82xx_addr_filt->iaddr_h);
2011                 addr_l = &(p_82xx_addr_filt->iaddr_l);
2012                 p_lh = &ugeth->ind_hash_q;
2013                 p_counter = &(ugeth->numIndAddrInHash);
2014         } else
2015                 return -EINVAL;
2016
2017         comm_dir = 0;
2018         if (uccf->enabled_tx)
2019                 comm_dir |= COMM_DIR_TX;
2020         if (uccf->enabled_rx)
2021                 comm_dir |= COMM_DIR_RX;
2022         if (comm_dir)
2023                 ugeth_disable(ugeth, comm_dir);
2024
2025         /* Clear the hash table. */
2026         out_be32(addr_h, 0x00000000);
2027         out_be32(addr_l, 0x00000000);
2028
2029         if (!p_lh)
2030                 return 0;
2031
2032         num = *p_counter;
2033
2034         /* Delete all remaining CQ elements */
2035         for (i = 0; i < num; i++)
2036                 put_enet_addr_container(ENET_ADDR_CONT_ENTRY(dequeue(p_lh)));
2037
2038         *p_counter = 0;
2039
2040         if (comm_dir)
2041                 ugeth_enable(ugeth, comm_dir);
2042
2043         return 0;
2044 }
2045
2046 #ifdef CONFIG_UGETH_FILTERING
2047 static int ugeth_82xx_filtering_add_addr_in_paddr(struct ucc_geth_private *ugeth,
2048                                                   struct enet_addr *p_enet_addr,
2049                                                   u8 paddr_num)
2050 {
2051         int i;
2052
2053         if ((*p_enet_addr)[0] & ENET_GROUP_ADDR)
2054                 ugeth_warn
2055                     ("%s: multicast address added to paddr will have no "
2056                      "effect - is this what you wanted?",
2057                      __FUNCTION__);
2058
2059         ugeth->indAddrRegUsed[paddr_num] = 1;   /* mark this paddr as used */
2060         /* store address in our database */
2061         for (i = 0; i < ENET_NUM_OCTETS_PER_ADDRESS; i++)
2062                 ugeth->paddr[paddr_num][i] = (*p_enet_addr)[i];
2063         /* put in hardware */
2064         return hw_add_addr_in_paddr(ugeth, p_enet_addr, paddr_num);
2065 }
2066 #endif /* CONFIG_UGETH_FILTERING */
2067
2068 static int ugeth_82xx_filtering_clear_addr_in_paddr(struct ucc_geth_private *ugeth,
2069                                                     u8 paddr_num)
2070 {
2071         ugeth->indAddrRegUsed[paddr_num] = 0; /* mark this paddr as not used */
2072         return hw_clear_addr_in_paddr(ugeth, paddr_num);/* clear in hardware */
2073 }
2074
2075 static void ucc_geth_memclean(struct ucc_geth_private *ugeth)
2076 {
2077         u16 i, j;
2078         u8 *bd;
2079
2080         if (!ugeth)
2081                 return;
2082
2083         if (ugeth->uccf)
2084                 ucc_fast_free(ugeth->uccf);
2085
2086         if (ugeth->p_thread_data_tx) {
2087                 qe_muram_free(ugeth->thread_dat_tx_offset);
2088                 ugeth->p_thread_data_tx = NULL;
2089         }
2090         if (ugeth->p_thread_data_rx) {
2091                 qe_muram_free(ugeth->thread_dat_rx_offset);
2092                 ugeth->p_thread_data_rx = NULL;
2093         }
2094         if (ugeth->p_exf_glbl_param) {
2095                 qe_muram_free(ugeth->exf_glbl_param_offset);
2096                 ugeth->p_exf_glbl_param = NULL;
2097         }
2098         if (ugeth->p_rx_glbl_pram) {
2099                 qe_muram_free(ugeth->rx_glbl_pram_offset);
2100                 ugeth->p_rx_glbl_pram = NULL;
2101         }
2102         if (ugeth->p_tx_glbl_pram) {
2103                 qe_muram_free(ugeth->tx_glbl_pram_offset);
2104                 ugeth->p_tx_glbl_pram = NULL;
2105         }
2106         if (ugeth->p_send_q_mem_reg) {
2107                 qe_muram_free(ugeth->send_q_mem_reg_offset);
2108                 ugeth->p_send_q_mem_reg = NULL;
2109         }
2110         if (ugeth->p_scheduler) {
2111                 qe_muram_free(ugeth->scheduler_offset);
2112                 ugeth->p_scheduler = NULL;
2113         }
2114         if (ugeth->p_tx_fw_statistics_pram) {
2115                 qe_muram_free(ugeth->tx_fw_statistics_pram_offset);
2116                 ugeth->p_tx_fw_statistics_pram = NULL;
2117         }
2118         if (ugeth->p_rx_fw_statistics_pram) {
2119                 qe_muram_free(ugeth->rx_fw_statistics_pram_offset);
2120                 ugeth->p_rx_fw_statistics_pram = NULL;
2121         }
2122         if (ugeth->p_rx_irq_coalescing_tbl) {
2123                 qe_muram_free(ugeth->rx_irq_coalescing_tbl_offset);
2124                 ugeth->p_rx_irq_coalescing_tbl = NULL;
2125         }
2126         if (ugeth->p_rx_bd_qs_tbl) {
2127                 qe_muram_free(ugeth->rx_bd_qs_tbl_offset);
2128                 ugeth->p_rx_bd_qs_tbl = NULL;
2129         }
2130         if (ugeth->p_init_enet_param_shadow) {
2131                 return_init_enet_entries(ugeth,
2132                                          &(ugeth->p_init_enet_param_shadow->
2133                                            rxthread[0]),
2134                                          ENET_INIT_PARAM_MAX_ENTRIES_RX,
2135                                          ugeth->ug_info->riscRx, 1);
2136                 return_init_enet_entries(ugeth,
2137                                          &(ugeth->p_init_enet_param_shadow->
2138                                            txthread[0]),
2139                                          ENET_INIT_PARAM_MAX_ENTRIES_TX,
2140                                          ugeth->ug_info->riscTx, 0);
2141                 kfree(ugeth->p_init_enet_param_shadow);
2142                 ugeth->p_init_enet_param_shadow = NULL;
2143         }
2144         for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) {
2145                 bd = ugeth->p_tx_bd_ring[i];
2146                 if (!bd)
2147                         continue;
2148                 for (j = 0; j < ugeth->ug_info->bdRingLenTx[i]; j++) {
2149                         if (ugeth->tx_skbuff[i][j]) {
2150                                 dma_unmap_single(NULL,
2151                                                  ((struct qe_bd *)bd)->buf,
2152                                                  (in_be32((u32 *)bd) &
2153                                                   BD_LENGTH_MASK),
2154                                                  DMA_TO_DEVICE);
2155                                 dev_kfree_skb_any(ugeth->tx_skbuff[i][j]);
2156                                 ugeth->tx_skbuff[i][j] = NULL;
2157                         }
2158                 }
2159
2160                 kfree(ugeth->tx_skbuff[i]);
2161
2162                 if (ugeth->p_tx_bd_ring[i]) {
2163                         if (ugeth->ug_info->uf_info.bd_mem_part ==
2164                             MEM_PART_SYSTEM)
2165                                 kfree((void *)ugeth->tx_bd_ring_offset[i]);
2166                         else if (ugeth->ug_info->uf_info.bd_mem_part ==
2167                                  MEM_PART_MURAM)
2168                                 qe_muram_free(ugeth->tx_bd_ring_offset[i]);
2169                         ugeth->p_tx_bd_ring[i] = NULL;
2170                 }
2171         }
2172         for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
2173                 if (ugeth->p_rx_bd_ring[i]) {
2174                         /* Return existing data buffers in ring */
2175                         bd = ugeth->p_rx_bd_ring[i];
2176                         for (j = 0; j < ugeth->ug_info->bdRingLenRx[i]; j++) {
2177                                 if (ugeth->rx_skbuff[i][j]) {
2178                                         dma_unmap_single(NULL,
2179                                                 ((struct qe_bd *)bd)->buf,
2180                                                 ugeth->ug_info->
2181                                                 uf_info.max_rx_buf_length +
2182                                                 UCC_GETH_RX_DATA_BUF_ALIGNMENT,
2183                                                 DMA_FROM_DEVICE);
2184                                         dev_kfree_skb_any(
2185                                                 ugeth->rx_skbuff[i][j]);
2186                                         ugeth->rx_skbuff[i][j] = NULL;
2187                                 }
2188                                 bd += sizeof(struct qe_bd);
2189                         }
2190
2191                         kfree(ugeth->rx_skbuff[i]);
2192
2193                         if (ugeth->ug_info->uf_info.bd_mem_part ==
2194                             MEM_PART_SYSTEM)
2195                                 kfree((void *)ugeth->rx_bd_ring_offset[i]);
2196                         else if (ugeth->ug_info->uf_info.bd_mem_part ==
2197                                  MEM_PART_MURAM)
2198                                 qe_muram_free(ugeth->rx_bd_ring_offset[i]);
2199                         ugeth->p_rx_bd_ring[i] = NULL;
2200                 }
2201         }
2202         while (!list_empty(&ugeth->group_hash_q))
2203                 put_enet_addr_container(ENET_ADDR_CONT_ENTRY
2204                                         (dequeue(&ugeth->group_hash_q)));
2205         while (!list_empty(&ugeth->ind_hash_q))
2206                 put_enet_addr_container(ENET_ADDR_CONT_ENTRY
2207                                         (dequeue(&ugeth->ind_hash_q)));
2208
2209 }
2210
2211 static void ucc_geth_set_multi(struct net_device *dev)
2212 {
2213         struct ucc_geth_private *ugeth;
2214         struct dev_mc_list *dmi;
2215         struct ucc_fast *uf_regs;
2216         struct ucc_geth_82xx_address_filtering_pram *p_82xx_addr_filt;
2217         u8 tempaddr[6];
2218         u8 *mcptr, *tdptr;
2219         int i, j;
2220
2221         ugeth = netdev_priv(dev);
2222
2223         uf_regs = ugeth->uccf->uf_regs;
2224
2225         if (dev->flags & IFF_PROMISC) {
2226
2227                 uf_regs->upsmr |= UPSMR_PRO;
2228
2229         } else {
2230
2231                 uf_regs->upsmr &= ~UPSMR_PRO;
2232
2233                 p_82xx_addr_filt =
2234                     (struct ucc_geth_82xx_address_filtering_pram *) ugeth->
2235                     p_rx_glbl_pram->addressfiltering;
2236
2237                 if (dev->flags & IFF_ALLMULTI) {
2238                         /* Catch all multicast addresses, so set the
2239                          * filter to all 1's.
2240                          */
2241                         out_be32(&p_82xx_addr_filt->gaddr_h, 0xffffffff);
2242                         out_be32(&p_82xx_addr_filt->gaddr_l, 0xffffffff);
2243                 } else {
2244                         /* Clear filter and add the addresses in the list.
2245                          */
2246                         out_be32(&p_82xx_addr_filt->gaddr_h, 0x0);
2247                         out_be32(&p_82xx_addr_filt->gaddr_l, 0x0);
2248
2249                         dmi = dev->mc_list;
2250
2251                         for (i = 0; i < dev->mc_count; i++, dmi = dmi->next) {
2252
2253                                 /* Only support group multicast for now.
2254                                  */
2255                                 if (!(dmi->dmi_addr[0] & 1))
2256                                         continue;
2257
2258                                 /* The address in dmi_addr is LSB first,
2259                                  * and taddr is MSB first.  We have to
2260                                  * copy bytes MSB first from dmi_addr.
2261                                  */
2262                                 mcptr = (u8 *) dmi->dmi_addr + 5;
2263                                 tdptr = (u8 *) tempaddr;
2264                                 for (j = 0; j < 6; j++)
2265                                         *tdptr++ = *mcptr--;
2266
2267                                 /* Ask CPM to run CRC and set bit in
2268                                  * filter mask.
2269                                  */
2270                                 hw_add_addr_in_hash(ugeth, tempaddr);
2271                         }
2272                 }
2273         }
2274 }
2275
2276 static void ucc_geth_stop(struct ucc_geth_private *ugeth)
2277 {
2278         struct ucc_geth *ug_regs = ugeth->ug_regs;
2279         struct phy_device *phydev = ugeth->phydev;
2280         u32 tempval;
2281
2282         ugeth_vdbg("%s: IN", __FUNCTION__);
2283
2284         /* Disable the controller */
2285         ugeth_disable(ugeth, COMM_DIR_RX_AND_TX);
2286
2287         /* Tell the kernel the link is down */
2288         phy_stop(phydev);
2289
2290         /* Mask all interrupts */
2291         out_be32(ugeth->uccf->p_uccm, 0x00000000);
2292
2293         /* Clear all interrupts */
2294         out_be32(ugeth->uccf->p_ucce, 0xffffffff);
2295
2296         /* Disable Rx and Tx */
2297         tempval = in_be32(&ug_regs->maccfg1);
2298         tempval &= ~(MACCFG1_ENABLE_RX | MACCFG1_ENABLE_TX);
2299         out_be32(&ug_regs->maccfg1, tempval);
2300
2301         free_irq(ugeth->ug_info->uf_info.irq, ugeth->dev);
2302
2303         ucc_geth_memclean(ugeth);
2304 }
2305
2306 static int ucc_struct_init(struct ucc_geth_private *ugeth)
2307 {
2308         struct ucc_geth_info *ug_info;
2309         struct ucc_fast_info *uf_info;
2310         int i;
2311
2312         ug_info = ugeth->ug_info;
2313         uf_info = &ug_info->uf_info;
2314
2315         /* Create CQs for hash tables */
2316         INIT_LIST_HEAD(&ugeth->group_hash_q);
2317         INIT_LIST_HEAD(&ugeth->ind_hash_q);
2318
2319         if (!((uf_info->bd_mem_part == MEM_PART_SYSTEM) ||
2320               (uf_info->bd_mem_part == MEM_PART_MURAM))) {
2321                 if (netif_msg_probe(ugeth))
2322                         ugeth_err("%s: Bad memory partition value.",
2323                                         __FUNCTION__);
2324                 return -EINVAL;
2325         }
2326
2327         /* Rx BD lengths */
2328         for (i = 0; i < ug_info->numQueuesRx; i++) {
2329                 if ((ug_info->bdRingLenRx[i] < UCC_GETH_RX_BD_RING_SIZE_MIN) ||
2330                     (ug_info->bdRingLenRx[i] %
2331                      UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT)) {
2332                         if (netif_msg_probe(ugeth))
2333                                 ugeth_err
2334                                     ("%s: Rx BD ring length must be multiple of 4, no smaller than 8.",
2335                                         __FUNCTION__);
2336                         return -EINVAL;
2337                 }
2338         }
2339
2340         /* Tx BD lengths */
2341         for (i = 0; i < ug_info->numQueuesTx; i++) {
2342                 if (ug_info->bdRingLenTx[i] < UCC_GETH_TX_BD_RING_SIZE_MIN) {
2343                         if (netif_msg_probe(ugeth))
2344                                 ugeth_err
2345                                     ("%s: Tx BD ring length must be no smaller than 2.",
2346                                      __FUNCTION__);
2347                         return -EINVAL;
2348                 }
2349         }
2350
2351         /* mrblr */
2352         if ((uf_info->max_rx_buf_length == 0) ||
2353             (uf_info->max_rx_buf_length % UCC_GETH_MRBLR_ALIGNMENT)) {
2354                 if (netif_msg_probe(ugeth))
2355                         ugeth_err
2356                             ("%s: max_rx_buf_length must be non-zero multiple of 128.",
2357                              __FUNCTION__);
2358                 return -EINVAL;
2359         }
2360
2361         /* num Tx queues */
2362         if (ug_info->numQueuesTx > NUM_TX_QUEUES) {
2363                 if (netif_msg_probe(ugeth))
2364                         ugeth_err("%s: number of tx queues too large.", __FUNCTION__);
2365                 return -EINVAL;
2366         }
2367
2368         /* num Rx queues */
2369         if (ug_info->numQueuesRx > NUM_RX_QUEUES) {
2370                 if (netif_msg_probe(ugeth))
2371                         ugeth_err("%s: number of rx queues too large.", __FUNCTION__);
2372                 return -EINVAL;
2373         }
2374
2375         /* l2qt */
2376         for (i = 0; i < UCC_GETH_VLAN_PRIORITY_MAX; i++) {
2377                 if (ug_info->l2qt[i] >= ug_info->numQueuesRx) {
2378                         if (netif_msg_probe(ugeth))
2379                                 ugeth_err
2380                                     ("%s: VLAN priority table entry must not be"
2381                                         " larger than number of Rx queues.",
2382                                      __FUNCTION__);
2383                         return -EINVAL;
2384                 }
2385         }
2386
2387         /* l3qt */
2388         for (i = 0; i < UCC_GETH_IP_PRIORITY_MAX; i++) {
2389                 if (ug_info->l3qt[i] >= ug_info->numQueuesRx) {
2390                         if (netif_msg_probe(ugeth))
2391                                 ugeth_err
2392                                     ("%s: IP priority table entry must not be"
2393                                         " larger than number of Rx queues.",
2394                                      __FUNCTION__);
2395                         return -EINVAL;
2396                 }
2397         }
2398
2399         if (ug_info->cam && !ug_info->ecamptr) {
2400                 if (netif_msg_probe(ugeth))
2401                         ugeth_err("%s: If cam mode is chosen, must supply cam ptr.",
2402                                   __FUNCTION__);
2403                 return -EINVAL;
2404         }
2405
2406         if ((ug_info->numStationAddresses !=
2407              UCC_GETH_NUM_OF_STATION_ADDRESSES_1)
2408             && ug_info->rxExtendedFiltering) {
2409                 if (netif_msg_probe(ugeth))
2410                         ugeth_err("%s: Number of station addresses greater than 1 "
2411                                   "not allowed in extended parsing mode.",
2412                                   __FUNCTION__);
2413                 return -EINVAL;
2414         }
2415
2416         /* Generate uccm_mask for receive */
2417         uf_info->uccm_mask = ug_info->eventRegMask & UCCE_OTHER;/* Errors */
2418         for (i = 0; i < ug_info->numQueuesRx; i++)
2419                 uf_info->uccm_mask |= (UCCE_RXBF_SINGLE_MASK << i);
2420
2421         for (i = 0; i < ug_info->numQueuesTx; i++)
2422                 uf_info->uccm_mask |= (UCCE_TXBF_SINGLE_MASK << i);
2423         /* Initialize the general fast UCC block. */
2424         if (ucc_fast_init(uf_info, &ugeth->uccf)) {
2425                 if (netif_msg_probe(ugeth))
2426                         ugeth_err("%s: Failed to init uccf.", __FUNCTION__);
2427                 ucc_geth_memclean(ugeth);
2428                 return -ENOMEM;
2429         }
2430
2431         ugeth->ug_regs = (struct ucc_geth *) ioremap(uf_info->regs, sizeof(struct ucc_geth));
2432
2433         return 0;
2434 }
2435
2436 static int ucc_geth_startup(struct ucc_geth_private *ugeth)
2437 {
2438         struct ucc_geth_82xx_address_filtering_pram *p_82xx_addr_filt;
2439         struct ucc_geth_init_pram *p_init_enet_pram;
2440         struct ucc_fast_private *uccf;
2441         struct ucc_geth_info *ug_info;
2442         struct ucc_fast_info *uf_info;
2443         struct ucc_fast *uf_regs;
2444         struct ucc_geth *ug_regs;
2445         int ret_val = -EINVAL;
2446         u32 remoder = UCC_GETH_REMODER_INIT;
2447         u32 init_enet_pram_offset, cecr_subblock, command, maccfg1;
2448         u32 ifstat, i, j, size, l2qt, l3qt, length;
2449         u16 temoder = UCC_GETH_TEMODER_INIT;
2450         u16 test;
2451         u8 function_code = 0;
2452         u8 *bd, *endOfRing;
2453         u8 numThreadsRxNumerical, numThreadsTxNumerical;
2454
2455         ugeth_vdbg("%s: IN", __FUNCTION__);
2456         uccf = ugeth->uccf;
2457         ug_info = ugeth->ug_info;
2458         uf_info = &ug_info->uf_info;
2459         uf_regs = uccf->uf_regs;
2460         ug_regs = ugeth->ug_regs;
2461
2462         switch (ug_info->numThreadsRx) {
2463         case UCC_GETH_NUM_OF_THREADS_1:
2464                 numThreadsRxNumerical = 1;
2465                 break;
2466         case UCC_GETH_NUM_OF_THREADS_2:
2467                 numThreadsRxNumerical = 2;
2468                 break;
2469         case UCC_GETH_NUM_OF_THREADS_4:
2470                 numThreadsRxNumerical = 4;
2471                 break;
2472         case UCC_GETH_NUM_OF_THREADS_6:
2473                 numThreadsRxNumerical = 6;
2474                 break;
2475         case UCC_GETH_NUM_OF_THREADS_8:
2476                 numThreadsRxNumerical = 8;
2477                 break;
2478         default:
2479                 if (netif_msg_ifup(ugeth))
2480                         ugeth_err("%s: Bad number of Rx threads value.",
2481                                         __FUNCTION__);
2482                 ucc_geth_memclean(ugeth);
2483                 return -EINVAL;
2484                 break;
2485         }
2486
2487         switch (ug_info->numThreadsTx) {
2488         case UCC_GETH_NUM_OF_THREADS_1:
2489                 numThreadsTxNumerical = 1;
2490                 break;
2491         case UCC_GETH_NUM_OF_THREADS_2:
2492                 numThreadsTxNumerical = 2;
2493                 break;
2494         case UCC_GETH_NUM_OF_THREADS_4:
2495                 numThreadsTxNumerical = 4;
2496                 break;
2497         case UCC_GETH_NUM_OF_THREADS_6:
2498                 numThreadsTxNumerical = 6;
2499                 break;
2500         case UCC_GETH_NUM_OF_THREADS_8:
2501                 numThreadsTxNumerical = 8;
2502                 break;
2503         default:
2504                 if (netif_msg_ifup(ugeth))
2505                         ugeth_err("%s: Bad number of Tx threads value.",
2506                                         __FUNCTION__);
2507                 ucc_geth_memclean(ugeth);
2508                 return -EINVAL;
2509                 break;
2510         }
2511
2512         /* Calculate rx_extended_features */
2513         ugeth->rx_non_dynamic_extended_features = ug_info->ipCheckSumCheck ||
2514             ug_info->ipAddressAlignment ||
2515             (ug_info->numStationAddresses !=
2516              UCC_GETH_NUM_OF_STATION_ADDRESSES_1);
2517
2518         ugeth->rx_extended_features = ugeth->rx_non_dynamic_extended_features ||
2519             (ug_info->vlanOperationTagged != UCC_GETH_VLAN_OPERATION_TAGGED_NOP)
2520             || (ug_info->vlanOperationNonTagged !=
2521                 UCC_GETH_VLAN_OPERATION_NON_TAGGED_NOP);
2522
2523         init_default_reg_vals(&uf_regs->upsmr,
2524                               &ug_regs->maccfg1, &ug_regs->maccfg2);
2525
2526         /*                    Set UPSMR                      */
2527         /* For more details see the hardware spec.           */
2528         init_rx_parameters(ug_info->bro,
2529                            ug_info->rsh, ug_info->pro, &uf_regs->upsmr);
2530
2531         /* We're going to ignore other registers for now, */
2532         /* except as needed to get up and running         */
2533
2534         /*                    Set MACCFG1                    */
2535         /* For more details see the hardware spec.           */
2536         init_flow_control_params(ug_info->aufc,
2537                                  ug_info->receiveFlowControl,
2538                                  ug_info->transmitFlowControl,
2539                                  ug_info->pausePeriod,
2540                                  ug_info->extensionField,
2541                                  &uf_regs->upsmr,
2542                                  &ug_regs->uempr, &ug_regs->maccfg1);
2543
2544         maccfg1 = in_be32(&ug_regs->maccfg1);
2545         maccfg1 |= MACCFG1_ENABLE_RX;
2546         maccfg1 |= MACCFG1_ENABLE_TX;
2547         out_be32(&ug_regs->maccfg1, maccfg1);
2548
2549         /*                    Set IPGIFG                     */
2550         /* For more details see the hardware spec.           */
2551         ret_val = init_inter_frame_gap_params(ug_info->nonBackToBackIfgPart1,
2552                                               ug_info->nonBackToBackIfgPart2,
2553                                               ug_info->
2554                                               miminumInterFrameGapEnforcement,
2555                                               ug_info->backToBackInterFrameGap,
2556                                               &ug_regs->ipgifg);
2557         if (ret_val != 0) {
2558                 if (netif_msg_ifup(ugeth))
2559                         ugeth_err("%s: IPGIFG initialization parameter too large.",
2560                                   __FUNCTION__);
2561                 ucc_geth_memclean(ugeth);
2562                 return ret_val;
2563         }
2564
2565         /*                    Set HAFDUP                     */
2566         /* For more details see the hardware spec.           */
2567         ret_val = init_half_duplex_params(ug_info->altBeb,
2568                                           ug_info->backPressureNoBackoff,
2569                                           ug_info->noBackoff,
2570                                           ug_info->excessDefer,
2571                                           ug_info->altBebTruncation,
2572                                           ug_info->maxRetransmission,
2573                                           ug_info->collisionWindow,
2574                                           &ug_regs->hafdup);
2575         if (ret_val != 0) {
2576                 if (netif_msg_ifup(ugeth))
2577                         ugeth_err("%s: Half Duplex initialization parameter too large.",
2578                           __FUNCTION__);
2579                 ucc_geth_memclean(ugeth);
2580                 return ret_val;
2581         }
2582
2583         /*                    Set IFSTAT                     */
2584         /* For more details see the hardware spec.           */
2585         /* Read only - resets upon read                      */
2586         ifstat = in_be32(&ug_regs->ifstat);
2587
2588         /*                    Clear UEMPR                    */
2589         /* For more details see the hardware spec.           */
2590         out_be32(&ug_regs->uempr, 0);
2591
2592         /*                    Set UESCR                      */
2593         /* For more details see the hardware spec.           */
2594         init_hw_statistics_gathering_mode((ug_info->statisticsMode &
2595                                 UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE),
2596                                 0, &uf_regs->upsmr, &ug_regs->uescr);
2597
2598         /* Allocate Tx bds */
2599         for (j = 0; j < ug_info->numQueuesTx; j++) {
2600                 /* Allocate in multiple of
2601                    UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT,
2602                    according to spec */
2603                 length = ((ug_info->bdRingLenTx[j] * sizeof(struct qe_bd))
2604                           / UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT)
2605                     * UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
2606                 if ((ug_info->bdRingLenTx[j] * sizeof(struct qe_bd)) %
2607                     UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT)
2608                         length += UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
2609                 if (uf_info->bd_mem_part == MEM_PART_SYSTEM) {
2610                         u32 align = 4;
2611                         if (UCC_GETH_TX_BD_RING_ALIGNMENT > 4)
2612                                 align = UCC_GETH_TX_BD_RING_ALIGNMENT;
2613                         ugeth->tx_bd_ring_offset[j] =
2614                                 kmalloc((u32) (length + align), GFP_KERNEL);
2615
2616                         if (ugeth->tx_bd_ring_offset[j] != 0)
2617                                 ugeth->p_tx_bd_ring[j] =
2618                                         (void*)((ugeth->tx_bd_ring_offset[j] +
2619                                         align) & ~(align - 1));
2620                 } else if (uf_info->bd_mem_part == MEM_PART_MURAM) {
2621                         ugeth->tx_bd_ring_offset[j] =
2622                             qe_muram_alloc(length,
2623                                            UCC_GETH_TX_BD_RING_ALIGNMENT);
2624                         if (!IS_ERR_VALUE(ugeth->tx_bd_ring_offset[j]))
2625                                 ugeth->p_tx_bd_ring[j] =
2626                                     (u8 *) qe_muram_addr(ugeth->
2627                                                          tx_bd_ring_offset[j]);
2628                 }
2629                 if (!ugeth->p_tx_bd_ring[j]) {
2630                         if (netif_msg_ifup(ugeth))
2631                                 ugeth_err
2632                                     ("%s: Can not allocate memory for Tx bd rings.",
2633                                      __FUNCTION__);
2634                         ucc_geth_memclean(ugeth);
2635                         return -ENOMEM;
2636                 }
2637                 /* Zero unused end of bd ring, according to spec */
2638                 memset(ugeth->p_tx_bd_ring[j] +
2639                        ug_info->bdRingLenTx[j] * sizeof(struct qe_bd), 0,
2640                        length - ug_info->bdRingLenTx[j] * sizeof(struct qe_bd));
2641         }
2642
2643         /* Allocate Rx bds */
2644         for (j = 0; j < ug_info->numQueuesRx; j++) {
2645                 length = ug_info->bdRingLenRx[j] * sizeof(struct qe_bd);
2646                 if (uf_info->bd_mem_part == MEM_PART_SYSTEM) {
2647                         u32 align = 4;
2648                         if (UCC_GETH_RX_BD_RING_ALIGNMENT > 4)
2649                                 align = UCC_GETH_RX_BD_RING_ALIGNMENT;
2650                         ugeth->rx_bd_ring_offset[j] =
2651                                 kmalloc((u32) (length + align), GFP_KERNEL);
2652                         if (ugeth->rx_bd_ring_offset[j] != 0)
2653                                 ugeth->p_rx_bd_ring[j] =
2654                                         (void*)((ugeth->rx_bd_ring_offset[j] +
2655                                         align) & ~(align - 1));
2656                 } else if (uf_info->bd_mem_part == MEM_PART_MURAM) {
2657                         ugeth->rx_bd_ring_offset[j] =
2658                             qe_muram_alloc(length,
2659                                            UCC_GETH_RX_BD_RING_ALIGNMENT);
2660                         if (!IS_ERR_VALUE(ugeth->rx_bd_ring_offset[j]))
2661                                 ugeth->p_rx_bd_ring[j] =
2662                                     (u8 *) qe_muram_addr(ugeth->
2663                                                          rx_bd_ring_offset[j]);
2664                 }
2665                 if (!ugeth->p_rx_bd_ring[j]) {
2666                         if (netif_msg_ifup(ugeth))
2667                                 ugeth_err
2668                                     ("%s: Can not allocate memory for Rx bd rings.",
2669                                      __FUNCTION__);
2670                         ucc_geth_memclean(ugeth);
2671                         return -ENOMEM;
2672                 }
2673         }
2674
2675         /* Init Tx bds */
2676         for (j = 0; j < ug_info->numQueuesTx; j++) {
2677                 /* Setup the skbuff rings */
2678                 ugeth->tx_skbuff[j] = kmalloc(sizeof(struct sk_buff *) *
2679                                               ugeth->ug_info->bdRingLenTx[j],
2680                                               GFP_KERNEL);
2681
2682                 if (ugeth->tx_skbuff[j] == NULL) {
2683                         if (netif_msg_ifup(ugeth))
2684                                 ugeth_err("%s: Could not allocate tx_skbuff",
2685                                           __FUNCTION__);
2686                         ucc_geth_memclean(ugeth);
2687                         return -ENOMEM;
2688                 }
2689
2690                 for (i = 0; i < ugeth->ug_info->bdRingLenTx[j]; i++)
2691                         ugeth->tx_skbuff[j][i] = NULL;
2692
2693                 ugeth->skb_curtx[j] = ugeth->skb_dirtytx[j] = 0;
2694                 bd = ugeth->confBd[j] = ugeth->txBd[j] = ugeth->p_tx_bd_ring[j];
2695                 for (i = 0; i < ug_info->bdRingLenTx[j]; i++) {
2696                         /* clear bd buffer */
2697                         out_be32(&((struct qe_bd *)bd)->buf, 0);
2698                         /* set bd status and length */
2699                         out_be32((u32 *)bd, 0);
2700                         bd += sizeof(struct qe_bd);
2701                 }
2702                 bd -= sizeof(struct qe_bd);
2703                 /* set bd status and length */
2704                 out_be32((u32 *)bd, T_W);       /* for last BD set Wrap bit */
2705         }
2706
2707         /* Init Rx bds */
2708         for (j = 0; j < ug_info->numQueuesRx; j++) {
2709                 /* Setup the skbuff rings */
2710                 ugeth->rx_skbuff[j] = kmalloc(sizeof(struct sk_buff *) *
2711                                               ugeth->ug_info->bdRingLenRx[j],
2712                                               GFP_KERNEL);
2713
2714                 if (ugeth->rx_skbuff[j] == NULL) {
2715                         if (netif_msg_ifup(ugeth))
2716                                 ugeth_err("%s: Could not allocate rx_skbuff",
2717                                           __FUNCTION__);
2718                         ucc_geth_memclean(ugeth);
2719                         return -ENOMEM;
2720                 }
2721
2722                 for (i = 0; i < ugeth->ug_info->bdRingLenRx[j]; i++)
2723                         ugeth->rx_skbuff[j][i] = NULL;
2724
2725                 ugeth->skb_currx[j] = 0;
2726                 bd = ugeth->rxBd[j] = ugeth->p_rx_bd_ring[j];
2727                 for (i = 0; i < ug_info->bdRingLenRx[j]; i++) {
2728                         /* set bd status and length */
2729                         out_be32((u32 *)bd, R_I);
2730                         /* clear bd buffer */
2731                         out_be32(&((struct qe_bd *)bd)->buf, 0);
2732                         bd += sizeof(struct qe_bd);
2733                 }
2734                 bd -= sizeof(struct qe_bd);
2735                 /* set bd status and length */
2736                 out_be32((u32 *)bd, R_W); /* for last BD set Wrap bit */
2737         }
2738
2739         /*
2740          * Global PRAM
2741          */
2742         /* Tx global PRAM */
2743         /* Allocate global tx parameter RAM page */
2744         ugeth->tx_glbl_pram_offset =
2745             qe_muram_alloc(sizeof(struct ucc_geth_tx_global_pram),
2746                            UCC_GETH_TX_GLOBAL_PRAM_ALIGNMENT);
2747         if (IS_ERR_VALUE(ugeth->tx_glbl_pram_offset)) {
2748                 if (netif_msg_ifup(ugeth))
2749                         ugeth_err
2750                             ("%s: Can not allocate DPRAM memory for p_tx_glbl_pram.",
2751                              __FUNCTION__);
2752                 ucc_geth_memclean(ugeth);
2753                 return -ENOMEM;
2754         }
2755         ugeth->p_tx_glbl_pram =
2756             (struct ucc_geth_tx_global_pram *) qe_muram_addr(ugeth->
2757                                                         tx_glbl_pram_offset);
2758         /* Zero out p_tx_glbl_pram */
2759         memset(ugeth->p_tx_glbl_pram, 0, sizeof(struct ucc_geth_tx_global_pram));
2760
2761         /* Fill global PRAM */
2762
2763         /* TQPTR */
2764         /* Size varies with number of Tx threads */
2765         ugeth->thread_dat_tx_offset =
2766             qe_muram_alloc(numThreadsTxNumerical *
2767                            sizeof(struct ucc_geth_thread_data_tx) +
2768                            32 * (numThreadsTxNumerical == 1),
2769                            UCC_GETH_THREAD_DATA_ALIGNMENT);
2770         if (IS_ERR_VALUE(ugeth->thread_dat_tx_offset)) {
2771                 if (netif_msg_ifup(ugeth))
2772                         ugeth_err
2773                             ("%s: Can not allocate DPRAM memory for p_thread_data_tx.",
2774                              __FUNCTION__);
2775                 ucc_geth_memclean(ugeth);
2776                 return -ENOMEM;
2777         }
2778
2779         ugeth->p_thread_data_tx =
2780             (struct ucc_geth_thread_data_tx *) qe_muram_addr(ugeth->
2781                                                         thread_dat_tx_offset);
2782         out_be32(&ugeth->p_tx_glbl_pram->tqptr, ugeth->thread_dat_tx_offset);
2783
2784         /* vtagtable */
2785         for (i = 0; i < UCC_GETH_TX_VTAG_TABLE_ENTRY_MAX; i++)
2786                 out_be32(&ugeth->p_tx_glbl_pram->vtagtable[i],
2787                          ug_info->vtagtable[i]);
2788
2789         /* iphoffset */
2790         for (i = 0; i < TX_IP_OFFSET_ENTRY_MAX; i++)
2791                 ugeth->p_tx_glbl_pram->iphoffset[i] = ug_info->iphoffset[i];
2792
2793         /* SQPTR */
2794         /* Size varies with number of Tx queues */
2795         ugeth->send_q_mem_reg_offset =
2796             qe_muram_alloc(ug_info->numQueuesTx *
2797                            sizeof(struct ucc_geth_send_queue_qd),
2798                            UCC_GETH_SEND_QUEUE_QUEUE_DESCRIPTOR_ALIGNMENT);
2799         if (IS_ERR_VALUE(ugeth->send_q_mem_reg_offset)) {
2800                 if (netif_msg_ifup(ugeth))
2801                         ugeth_err
2802                             ("%s: Can not allocate DPRAM memory for p_send_q_mem_reg.",
2803                              __FUNCTION__);
2804                 ucc_geth_memclean(ugeth);
2805                 return -ENOMEM;
2806         }
2807
2808         ugeth->p_send_q_mem_reg =
2809             (struct ucc_geth_send_queue_mem_region *) qe_muram_addr(ugeth->
2810                         send_q_mem_reg_offset);
2811         out_be32(&ugeth->p_tx_glbl_pram->sqptr, ugeth->send_q_mem_reg_offset);
2812
2813         /* Setup the table */
2814         /* Assume BD rings are already established */
2815         for (i = 0; i < ug_info->numQueuesTx; i++) {
2816                 endOfRing =
2817                     ugeth->p_tx_bd_ring[i] + (ug_info->bdRingLenTx[i] -
2818                                               1) * sizeof(struct qe_bd);
2819                 if (ugeth->ug_info->uf_info.bd_mem_part == MEM_PART_SYSTEM) {
2820                         out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].bd_ring_base,
2821                                  (u32) virt_to_phys(ugeth->p_tx_bd_ring[i]));
2822                         out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].
2823                                  last_bd_completed_address,
2824                                  (u32) virt_to_phys(endOfRing));
2825                 } else if (ugeth->ug_info->uf_info.bd_mem_part ==
2826                            MEM_PART_MURAM) {
2827                         out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].bd_ring_base,
2828                                  (u32) immrbar_virt_to_phys(ugeth->
2829                                                             p_tx_bd_ring[i]));
2830                         out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].
2831                                  last_bd_completed_address,
2832                                  (u32) immrbar_virt_to_phys(endOfRing));
2833                 }
2834         }
2835
2836         /* schedulerbasepointer */
2837
2838         if (ug_info->numQueuesTx > 1) {
2839         /* scheduler exists only if more than 1 tx queue */
2840                 ugeth->scheduler_offset =
2841                     qe_muram_alloc(sizeof(struct ucc_geth_scheduler),
2842                                    UCC_GETH_SCHEDULER_ALIGNMENT);
2843                 if (IS_ERR_VALUE(ugeth->scheduler_offset)) {
2844                         if (netif_msg_ifup(ugeth))
2845                                 ugeth_err
2846                                  ("%s: Can not allocate DPRAM memory for p_scheduler.",
2847                                      __FUNCTION__);
2848                         ucc_geth_memclean(ugeth);
2849                         return -ENOMEM;
2850                 }
2851
2852                 ugeth->p_scheduler =
2853                     (struct ucc_geth_scheduler *) qe_muram_addr(ugeth->
2854                                                            scheduler_offset);
2855                 out_be32(&ugeth->p_tx_glbl_pram->schedulerbasepointer,
2856                          ugeth->scheduler_offset);
2857                 /* Zero out p_scheduler */
2858                 memset(ugeth->p_scheduler, 0, sizeof(struct ucc_geth_scheduler));
2859
2860                 /* Set values in scheduler */
2861                 out_be32(&ugeth->p_scheduler->mblinterval,
2862                          ug_info->mblinterval);
2863                 out_be16(&ugeth->p_scheduler->nortsrbytetime,
2864                          ug_info->nortsrbytetime);
2865                 ugeth->p_scheduler->fracsiz = ug_info->fracsiz;
2866                 ugeth->p_scheduler->strictpriorityq = ug_info->strictpriorityq;
2867                 ugeth->p_scheduler->txasap = ug_info->txasap;
2868                 ugeth->p_scheduler->extrabw = ug_info->extrabw;
2869                 for (i = 0; i < NUM_TX_QUEUES; i++)
2870                         ugeth->p_scheduler->weightfactor[i] =
2871                             ug_info->weightfactor[i];
2872
2873                 /* Set pointers to cpucount registers in scheduler */
2874                 ugeth->p_cpucount[0] = &(ugeth->p_scheduler->cpucount0);
2875                 ugeth->p_cpucount[1] = &(ugeth->p_scheduler->cpucount1);
2876                 ugeth->p_cpucount[2] = &(ugeth->p_scheduler->cpucount2);
2877                 ugeth->p_cpucount[3] = &(ugeth->p_scheduler->cpucount3);
2878                 ugeth->p_cpucount[4] = &(ugeth->p_scheduler->cpucount4);
2879                 ugeth->p_cpucount[5] = &(ugeth->p_scheduler->cpucount5);
2880                 ugeth->p_cpucount[6] = &(ugeth->p_scheduler->cpucount6);
2881                 ugeth->p_cpucount[7] = &(ugeth->p_scheduler->cpucount7);
2882         }
2883
2884         /* schedulerbasepointer */
2885         /* TxRMON_PTR (statistics) */
2886         if (ug_info->
2887             statisticsMode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) {
2888                 ugeth->tx_fw_statistics_pram_offset =
2889                     qe_muram_alloc(sizeof
2890                                    (struct ucc_geth_tx_firmware_statistics_pram),
2891                                    UCC_GETH_TX_STATISTICS_ALIGNMENT);
2892                 if (IS_ERR_VALUE(ugeth->tx_fw_statistics_pram_offset)) {
2893                         if (netif_msg_ifup(ugeth))
2894                                 ugeth_err
2895                                     ("%s: Can not allocate DPRAM memory for"
2896                                         " p_tx_fw_statistics_pram.",
2897                                         __FUNCTION__);
2898                         ucc_geth_memclean(ugeth);
2899                         return -ENOMEM;
2900                 }
2901                 ugeth->p_tx_fw_statistics_pram =
2902                     (struct ucc_geth_tx_firmware_statistics_pram *)
2903                     qe_muram_addr(ugeth->tx_fw_statistics_pram_offset);
2904                 /* Zero out p_tx_fw_statistics_pram */
2905                 memset(ugeth->p_tx_fw_statistics_pram,
2906                        0, sizeof(struct ucc_geth_tx_firmware_statistics_pram));
2907         }
2908
2909         /* temoder */
2910         /* Already has speed set */
2911
2912         if (ug_info->numQueuesTx > 1)
2913                 temoder |= TEMODER_SCHEDULER_ENABLE;
2914         if (ug_info->ipCheckSumGenerate)
2915                 temoder |= TEMODER_IP_CHECKSUM_GENERATE;
2916         temoder |= ((ug_info->numQueuesTx - 1) << TEMODER_NUM_OF_QUEUES_SHIFT);
2917         out_be16(&ugeth->p_tx_glbl_pram->temoder, temoder);
2918
2919         test = in_be16(&ugeth->p_tx_glbl_pram->temoder);
2920
2921         /* Function code register value to be used later */
2922         function_code = UCC_BMR_BO_BE | UCC_BMR_GBL;
2923         /* Required for QE */
2924
2925         /* function code register */
2926         out_be32(&ugeth->p_tx_glbl_pram->tstate, ((u32) function_code) << 24);
2927
2928         /* Rx global PRAM */
2929         /* Allocate global rx parameter RAM page */
2930         ugeth->rx_glbl_pram_offset =
2931             qe_muram_alloc(sizeof(struct ucc_geth_rx_global_pram),
2932                            UCC_GETH_RX_GLOBAL_PRAM_ALIGNMENT);
2933         if (IS_ERR_VALUE(ugeth->rx_glbl_pram_offset)) {
2934                 if (netif_msg_ifup(ugeth))
2935                         ugeth_err
2936                             ("%s: Can not allocate DPRAM memory for p_rx_glbl_pram.",
2937                              __FUNCTION__);
2938                 ucc_geth_memclean(ugeth);
2939                 return -ENOMEM;
2940         }
2941         ugeth->p_rx_glbl_pram =
2942             (struct ucc_geth_rx_global_pram *) qe_muram_addr(ugeth->
2943                                                         rx_glbl_pram_offset);
2944         /* Zero out p_rx_glbl_pram */
2945         memset(ugeth->p_rx_glbl_pram, 0, sizeof(struct ucc_geth_rx_global_pram));
2946
2947         /* Fill global PRAM */
2948
2949         /* RQPTR */
2950         /* Size varies with number of Rx threads */
2951         ugeth->thread_dat_rx_offset =
2952             qe_muram_alloc(numThreadsRxNumerical *
2953                            sizeof(struct ucc_geth_thread_data_rx),
2954                            UCC_GETH_THREAD_DATA_ALIGNMENT);
2955         if (IS_ERR_VALUE(ugeth->thread_dat_rx_offset)) {
2956                 if (netif_msg_ifup(ugeth))
2957                         ugeth_err
2958                             ("%s: Can not allocate DPRAM memory for p_thread_data_rx.",
2959                              __FUNCTION__);
2960                 ucc_geth_memclean(ugeth);
2961                 return -ENOMEM;
2962         }
2963
2964         ugeth->p_thread_data_rx =
2965             (struct ucc_geth_thread_data_rx *) qe_muram_addr(ugeth->
2966                                                         thread_dat_rx_offset);
2967         out_be32(&ugeth->p_rx_glbl_pram->rqptr, ugeth->thread_dat_rx_offset);
2968
2969         /* typeorlen */
2970         out_be16(&ugeth->p_rx_glbl_pram->typeorlen, ug_info->typeorlen);
2971
2972         /* rxrmonbaseptr (statistics) */
2973         if (ug_info->
2974             statisticsMode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX) {
2975                 ugeth->rx_fw_statistics_pram_offset =
2976                     qe_muram_alloc(sizeof
2977                                    (struct ucc_geth_rx_firmware_statistics_pram),
2978                                    UCC_GETH_RX_STATISTICS_ALIGNMENT);
2979                 if (IS_ERR_VALUE(ugeth->rx_fw_statistics_pram_offset)) {
2980                         if (netif_msg_ifup(ugeth))
2981                                 ugeth_err
2982                                         ("%s: Can not allocate DPRAM memory for"
2983                                         " p_rx_fw_statistics_pram.", __FUNCTION__);
2984                         ucc_geth_memclean(ugeth);
2985                         return -ENOMEM;
2986                 }
2987                 ugeth->p_rx_fw_statistics_pram =
2988                     (struct ucc_geth_rx_firmware_statistics_pram *)
2989                     qe_muram_addr(ugeth->rx_fw_statistics_pram_offset);
2990                 /* Zero out p_rx_fw_statistics_pram */
2991                 memset(ugeth->p_rx_fw_statistics_pram, 0,
2992                        sizeof(struct ucc_geth_rx_firmware_statistics_pram));
2993         }
2994
2995         /* intCoalescingPtr */
2996
2997         /* Size varies with number of Rx queues */
2998         ugeth->rx_irq_coalescing_tbl_offset =
2999             qe_muram_alloc(ug_info->numQueuesRx *
3000                            sizeof(struct ucc_geth_rx_interrupt_coalescing_entry)
3001                            + 4, UCC_GETH_RX_INTERRUPT_COALESCING_ALIGNMENT);
3002         if (IS_ERR_VALUE(ugeth->rx_irq_coalescing_tbl_offset)) {
3003                 if (netif_msg_ifup(ugeth))
3004                         ugeth_err
3005                             ("%s: Can not allocate DPRAM memory for"
3006                                 " p_rx_irq_coalescing_tbl.", __FUNCTION__);
3007                 ucc_geth_memclean(ugeth);
3008                 return -ENOMEM;
3009         }
3010
3011         ugeth->p_rx_irq_coalescing_tbl =
3012             (struct ucc_geth_rx_interrupt_coalescing_table *)
3013             qe_muram_addr(ugeth->rx_irq_coalescing_tbl_offset);
3014         out_be32(&ugeth->p_rx_glbl_pram->intcoalescingptr,
3015                  ugeth->rx_irq_coalescing_tbl_offset);
3016
3017         /* Fill interrupt coalescing table */
3018         for (i = 0; i < ug_info->numQueuesRx; i++) {
3019                 out_be32(&ugeth->p_rx_irq_coalescing_tbl->coalescingentry[i].
3020                          interruptcoalescingmaxvalue,
3021                          ug_info->interruptcoalescingmaxvalue[i]);
3022                 out_be32(&ugeth->p_rx_irq_coalescing_tbl->coalescingentry[i].
3023                          interruptcoalescingcounter,
3024                          ug_info->interruptcoalescingmaxvalue[i]);
3025         }
3026
3027         /* MRBLR */
3028         init_max_rx_buff_len(uf_info->max_rx_buf_length,
3029                              &ugeth->p_rx_glbl_pram->mrblr);
3030         /* MFLR */
3031         out_be16(&ugeth->p_rx_glbl_pram->mflr, ug_info->maxFrameLength);
3032         /* MINFLR */
3033         init_min_frame_len(ug_info->minFrameLength,
3034                            &ugeth->p_rx_glbl_pram->minflr,
3035                            &ugeth->p_rx_glbl_pram->mrblr);
3036         /* MAXD1 */
3037         out_be16(&ugeth->p_rx_glbl_pram->maxd1, ug_info->maxD1Length);
3038         /* MAXD2 */
3039         out_be16(&ugeth->p_rx_glbl_pram->maxd2, ug_info->maxD2Length);
3040
3041         /* l2qt */
3042         l2qt = 0;
3043         for (i = 0; i < UCC_GETH_VLAN_PRIORITY_MAX; i++)
3044                 l2qt |= (ug_info->l2qt[i] << (28 - 4 * i));
3045         out_be32(&ugeth->p_rx_glbl_pram->l2qt, l2qt);
3046
3047         /* l3qt */
3048         for (j = 0; j < UCC_GETH_IP_PRIORITY_MAX; j += 8) {
3049                 l3qt = 0;
3050                 for (i = 0; i < 8; i++)
3051                         l3qt |= (ug_info->l3qt[j + i] << (28 - 4 * i));
3052                 out_be32(&ugeth->p_rx_glbl_pram->l3qt[j/8], l3qt);
3053         }
3054
3055         /* vlantype */
3056         out_be16(&ugeth->p_rx_glbl_pram->vlantype, ug_info->vlantype);
3057
3058         /* vlantci */
3059         out_be16(&ugeth->p_rx_glbl_pram->vlantci, ug_info->vlantci);
3060
3061         /* ecamptr */
3062         out_be32(&ugeth->p_rx_glbl_pram->ecamptr, ug_info->ecamptr);
3063
3064         /* RBDQPTR */
3065         /* Size varies with number of Rx queues */
3066         ugeth->rx_bd_qs_tbl_offset =
3067             qe_muram_alloc(ug_info->numQueuesRx *
3068                            (sizeof(struct ucc_geth_rx_bd_queues_entry) +
3069                             sizeof(struct ucc_geth_rx_prefetched_bds)),
3070                            UCC_GETH_RX_BD_QUEUES_ALIGNMENT);
3071         if (IS_ERR_VALUE(ugeth->rx_bd_qs_tbl_offset)) {
3072                 if (netif_msg_ifup(ugeth))
3073                         ugeth_err
3074                             ("%s: Can not allocate DPRAM memory for p_rx_bd_qs_tbl.",
3075                              __FUNCTION__);
3076                 ucc_geth_memclean(ugeth);
3077                 return -ENOMEM;
3078         }
3079
3080         ugeth->p_rx_bd_qs_tbl =
3081             (struct ucc_geth_rx_bd_queues_entry *) qe_muram_addr(ugeth->
3082                                     rx_bd_qs_tbl_offset);
3083         out_be32(&ugeth->p_rx_glbl_pram->rbdqptr, ugeth->rx_bd_qs_tbl_offset);
3084         /* Zero out p_rx_bd_qs_tbl */
3085         memset(ugeth->p_rx_bd_qs_tbl,
3086                0,
3087                ug_info->numQueuesRx * (sizeof(struct ucc_geth_rx_bd_queues_entry) +
3088                                        sizeof(struct ucc_geth_rx_prefetched_bds)));
3089
3090         /* Setup the table */
3091         /* Assume BD rings are already established */
3092         for (i = 0; i < ug_info->numQueuesRx; i++) {
3093                 if (ugeth->ug_info->uf_info.bd_mem_part == MEM_PART_SYSTEM) {
3094                         out_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
3095                                  (u32) virt_to_phys(ugeth->p_rx_bd_ring[i]));
3096                 } else if (ugeth->ug_info->uf_info.bd_mem_part ==
3097                            MEM_PART_MURAM) {
3098                         out_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
3099                                  (u32) immrbar_virt_to_phys(ugeth->
3100                                                             p_rx_bd_ring[i]));
3101                 }
3102                 /* rest of fields handled by QE */
3103         }
3104
3105         /* remoder */
3106         /* Already has speed set */
3107
3108         if (ugeth->rx_extended_features)
3109                 remoder |= REMODER_RX_EXTENDED_FEATURES;
3110         if (ug_info->rxExtendedFiltering)
3111                 remoder |= REMODER_RX_EXTENDED_FILTERING;
3112         if (ug_info->dynamicMaxFrameLength)
3113                 remoder |= REMODER_DYNAMIC_MAX_FRAME_LENGTH;
3114         if (ug_info->dynamicMinFrameLength)
3115                 remoder |= REMODER_DYNAMIC_MIN_FRAME_LENGTH;
3116         remoder |=
3117             ug_info->vlanOperationTagged << REMODER_VLAN_OPERATION_TAGGED_SHIFT;
3118         remoder |=
3119             ug_info->
3120             vlanOperationNonTagged << REMODER_VLAN_OPERATION_NON_TAGGED_SHIFT;
3121         remoder |= ug_info->rxQoSMode << REMODER_RX_QOS_MODE_SHIFT;
3122         remoder |= ((ug_info->numQueuesRx - 1) << REMODER_NUM_OF_QUEUES_SHIFT);
3123         if (ug_info->ipCheckSumCheck)
3124                 remoder |= REMODER_IP_CHECKSUM_CHECK;
3125         if (ug_info->ipAddressAlignment)
3126                 remoder |= REMODER_IP_ADDRESS_ALIGNMENT;
3127         out_be32(&ugeth->p_rx_glbl_pram->remoder, remoder);
3128
3129         /* Note that this function must be called */
3130         /* ONLY AFTER p_tx_fw_statistics_pram */
3131         /* andp_UccGethRxFirmwareStatisticsPram are allocated ! */
3132         init_firmware_statistics_gathering_mode((ug_info->
3133                 statisticsMode &
3134                 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX),
3135                 (ug_info->statisticsMode &
3136                 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX),
3137                 &ugeth->p_tx_glbl_pram->txrmonbaseptr,
3138                 ugeth->tx_fw_statistics_pram_offset,
3139                 &ugeth->p_rx_glbl_pram->rxrmonbaseptr,
3140                 ugeth->rx_fw_statistics_pram_offset,
3141                 &ugeth->p_tx_glbl_pram->temoder,
3142                 &ugeth->p_rx_glbl_pram->remoder);
3143
3144         /* function code register */
3145         ugeth->p_rx_glbl_pram->rstate = function_code;
3146
3147         /* initialize extended filtering */
3148         if (ug_info->rxExtendedFiltering) {
3149                 if (!ug_info->extendedFilteringChainPointer) {
3150                         if (netif_msg_ifup(ugeth))
3151                                 ugeth_err("%s: Null Extended Filtering Chain Pointer.",
3152                                           __FUNCTION__);
3153                         ucc_geth_memclean(ugeth);
3154                         return -EINVAL;
3155                 }
3156
3157                 /* Allocate memory for extended filtering Mode Global
3158                 Parameters */
3159                 ugeth->exf_glbl_param_offset =
3160                     qe_muram_alloc(sizeof(struct ucc_geth_exf_global_pram),
3161                 UCC_GETH_RX_EXTENDED_FILTERING_GLOBAL_PARAMETERS_ALIGNMENT);
3162                 if (IS_ERR_VALUE(ugeth->exf_glbl_param_offset)) {
3163                         if (netif_msg_ifup(ugeth))
3164                                 ugeth_err
3165                                         ("%s: Can not allocate DPRAM memory for"
3166                                         " p_exf_glbl_param.", __FUNCTION__);
3167                         ucc_geth_memclean(ugeth);
3168                         return -ENOMEM;
3169                 }
3170
3171                 ugeth->p_exf_glbl_param =
3172                     (struct ucc_geth_exf_global_pram *) qe_muram_addr(ugeth->
3173                                  exf_glbl_param_offset);
3174                 out_be32(&ugeth->p_rx_glbl_pram->exfGlobalParam,
3175                          ugeth->exf_glbl_param_offset);
3176                 out_be32(&ugeth->p_exf_glbl_param->l2pcdptr,
3177                          (u32) ug_info->extendedFilteringChainPointer);
3178
3179         } else {                /* initialize 82xx style address filtering */
3180
3181                 /* Init individual address recognition registers to disabled */
3182
3183                 for (j = 0; j < NUM_OF_PADDRS; j++)
3184                         ugeth_82xx_filtering_clear_addr_in_paddr(ugeth, (u8) j);
3185
3186                 p_82xx_addr_filt =
3187                     (struct ucc_geth_82xx_address_filtering_pram *) ugeth->
3188                     p_rx_glbl_pram->addressfiltering;
3189
3190                 ugeth_82xx_filtering_clear_all_addr_in_hash(ugeth,
3191                         ENET_ADDR_TYPE_GROUP);
3192                 ugeth_82xx_filtering_clear_all_addr_in_hash(ugeth,
3193                         ENET_ADDR_TYPE_INDIVIDUAL);
3194         }
3195
3196         /*
3197          * Initialize UCC at QE level
3198          */
3199
3200         command = QE_INIT_TX_RX;
3201
3202         /* Allocate shadow InitEnet command parameter structure.
3203          * This is needed because after the InitEnet command is executed,
3204          * the structure in DPRAM is released, because DPRAM is a premium
3205          * resource.
3206          * This shadow structure keeps a copy of what was done so that the
3207          * allocated resources can be released when the channel is freed.
3208          */
3209         if (!(ugeth->p_init_enet_param_shadow =
3210               kmalloc(sizeof(struct ucc_geth_init_pram), GFP_KERNEL))) {
3211                 if (netif_msg_ifup(ugeth))
3212                         ugeth_err
3213                             ("%s: Can not allocate memory for"
3214                                 " p_UccInitEnetParamShadows.", __FUNCTION__);
3215                 ucc_geth_memclean(ugeth);
3216                 return -ENOMEM;
3217         }
3218         /* Zero out *p_init_enet_param_shadow */
3219         memset((char *)ugeth->p_init_enet_param_shadow,
3220                0, sizeof(struct ucc_geth_init_pram));
3221
3222         /* Fill shadow InitEnet command parameter structure */
3223
3224         ugeth->p_init_enet_param_shadow->resinit1 =
3225             ENET_INIT_PARAM_MAGIC_RES_INIT1;
3226         ugeth->p_init_enet_param_shadow->resinit2 =
3227             ENET_INIT_PARAM_MAGIC_RES_INIT2;
3228         ugeth->p_init_enet_param_shadow->resinit3 =
3229             ENET_INIT_PARAM_MAGIC_RES_INIT3;
3230         ugeth->p_init_enet_param_shadow->resinit4 =
3231             ENET_INIT_PARAM_MAGIC_RES_INIT4;
3232         ugeth->p_init_enet_param_shadow->resinit5 =
3233             ENET_INIT_PARAM_MAGIC_RES_INIT5;
3234         ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
3235             ((u32) ug_info->numThreadsRx) << ENET_INIT_PARAM_RGF_SHIFT;
3236         ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
3237             ((u32) ug_info->numThreadsTx) << ENET_INIT_PARAM_TGF_SHIFT;
3238
3239         ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
3240             ugeth->rx_glbl_pram_offset | ug_info->riscRx;
3241         if ((ug_info->largestexternallookupkeysize !=
3242              QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_NONE)
3243             && (ug_info->largestexternallookupkeysize !=
3244                 QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_8_BYTES)
3245             && (ug_info->largestexternallookupkeysize !=
3246                 QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_16_BYTES)) {
3247                 if (netif_msg_ifup(ugeth))
3248                         ugeth_err("%s: Invalid largest External Lookup Key Size.",
3249                                   __FUNCTION__);
3250                 ucc_geth_memclean(ugeth);
3251                 return -EINVAL;
3252         }
3253         ugeth->p_init_enet_param_shadow->largestexternallookupkeysize =
3254             ug_info->largestexternallookupkeysize;
3255         size = sizeof(struct ucc_geth_thread_rx_pram);
3256         if (ug_info->rxExtendedFiltering) {
3257                 size += THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING;
3258                 if (ug_info->largestexternallookupkeysize ==
3259                     QE_FLTR_TABLE_LOOKUP_KEY_SIZE_8_BYTES)
3260                         size +=
3261                             THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_8;
3262                 if (ug_info->largestexternallookupkeysize ==
3263                     QE_FLTR_TABLE_LOOKUP_KEY_SIZE_16_BYTES)
3264                         size +=
3265                             THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_16;
3266         }
3267
3268         if ((ret_val = fill_init_enet_entries(ugeth, &(ugeth->
3269                 p_init_enet_param_shadow->rxthread[0]),
3270                 (u8) (numThreadsRxNumerical + 1)
3271                 /* Rx needs one extra for terminator */
3272                 , size, UCC_GETH_THREAD_RX_PRAM_ALIGNMENT,
3273                 ug_info->riscRx, 1)) != 0) {
3274                 if (netif_msg_ifup(ugeth))
3275                                 ugeth_err("%s: Can not fill p_init_enet_param_shadow.",
3276                                         __FUNCTION__);
3277                 ucc_geth_memclean(ugeth);
3278                 return ret_val;
3279         }
3280
3281         ugeth->p_init_enet_param_shadow->txglobal =
3282             ugeth->tx_glbl_pram_offset | ug_info->riscTx;
3283         if ((ret_val =
3284              fill_init_enet_entries(ugeth,
3285                                     &(ugeth->p_init_enet_param_shadow->
3286                                       txthread[0]), numThreadsTxNumerical,
3287                                     sizeof(struct ucc_geth_thread_tx_pram),
3288                                     UCC_GETH_THREAD_TX_PRAM_ALIGNMENT,
3289                                     ug_info->riscTx, 0)) != 0) {
3290                 if (netif_msg_ifup(ugeth))
3291                         ugeth_err("%s: Can not fill p_init_enet_param_shadow.",
3292                                   __FUNCTION__);
3293                 ucc_geth_memclean(ugeth);
3294                 return ret_val;
3295         }
3296
3297         /* Load Rx bds with buffers */
3298         for (i = 0; i < ug_info->numQueuesRx; i++) {
3299                 if ((ret_val = rx_bd_buffer_set(ugeth, (u8) i)) != 0) {
3300                         if (netif_msg_ifup(ugeth))
3301                                 ugeth_err("%s: Can not fill Rx bds with buffers.",
3302                                           __FUNCTION__);
3303                         ucc_geth_memclean(ugeth);
3304                         return ret_val;
3305                 }
3306         }
3307
3308         /* Allocate InitEnet command parameter structure */
3309         init_enet_pram_offset = qe_muram_alloc(sizeof(struct ucc_geth_init_pram), 4);
3310         if (IS_ERR_VALUE(init_enet_pram_offset)) {
3311                 if (netif_msg_ifup(ugeth))
3312                         ugeth_err
3313                             ("%s: Can not allocate DPRAM memory for p_init_enet_pram.",
3314                              __FUNCTION__);
3315                 ucc_geth_memclean(ugeth);
3316                 return -ENOMEM;
3317         }
3318         p_init_enet_pram =
3319             (struct ucc_geth_init_pram *) qe_muram_addr(init_enet_pram_offset);
3320
3321         /* Copy shadow InitEnet command parameter structure into PRAM */
3322         p_init_enet_pram->resinit1 = ugeth->p_init_enet_param_shadow->resinit1;
3323         p_init_enet_pram->resinit2 = ugeth->p_init_enet_param_shadow->resinit2;
3324         p_init_enet_pram->resinit3 = ugeth->p_init_enet_param_shadow->resinit3;
3325         p_init_enet_pram->resinit4 = ugeth->p_init_enet_param_shadow->resinit4;
3326         out_be16(&p_init_enet_pram->resinit5,
3327                  ugeth->p_init_enet_param_shadow->resinit5);
3328         p_init_enet_pram->largestexternallookupkeysize =
3329             ugeth->p_init_enet_param_shadow->largestexternallookupkeysize;
3330         out_be32(&p_init_enet_pram->rgftgfrxglobal,
3331                  ugeth->p_init_enet_param_shadow->rgftgfrxglobal);
3332         for (i = 0; i < ENET_INIT_PARAM_MAX_ENTRIES_RX; i++)
3333                 out_be32(&p_init_enet_pram->rxthread[i],
3334                          ugeth->p_init_enet_param_shadow->rxthread[i]);
3335         out_be32(&p_init_enet_pram->txglobal,
3336                  ugeth->p_init_enet_param_shadow->txglobal);
3337         for (i = 0; i < ENET_INIT_PARAM_MAX_ENTRIES_TX; i++)
3338                 out_be32(&p_init_enet_pram->txthread[i],
3339                          ugeth->p_init_enet_param_shadow->txthread[i]);
3340
3341         /* Issue QE command */
3342         cecr_subblock =
3343             ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
3344         qe_issue_cmd(command, cecr_subblock, QE_CR_PROTOCOL_ETHERNET,
3345                      init_enet_pram_offset);
3346
3347         /* Free InitEnet command parameter */
3348         qe_muram_free(init_enet_pram_offset);
3349
3350         return 0;
3351 }
3352
3353 /* ucc_geth_timeout gets called when a packet has not been
3354  * transmitted after a set amount of time.
3355  * For now, assume that clearing out all the structures, and
3356  * starting over will fix the problem. */
3357 static void ucc_geth_timeout(struct net_device *dev)
3358 {
3359         struct ucc_geth_private *ugeth = netdev_priv(dev);
3360
3361         ugeth_vdbg("%s: IN", __FUNCTION__);
3362
3363         dev->stats.tx_errors++;
3364
3365         ugeth_dump_regs(ugeth);
3366
3367         if (dev->flags & IFF_UP) {
3368                 ucc_geth_stop(ugeth);
3369                 ucc_geth_startup(ugeth);
3370         }
3371
3372         netif_schedule(dev);
3373 }
3374
3375 /* This is called by the kernel when a frame is ready for transmission. */
3376 /* It is pointed to by the dev->hard_start_xmit function pointer */
3377 static int ucc_geth_start_xmit(struct sk_buff *skb, struct net_device *dev)
3378 {
3379         struct ucc_geth_private *ugeth = netdev_priv(dev);
3380 #ifdef CONFIG_UGETH_TX_ON_DEMAND
3381         struct ucc_fast_private *uccf;
3382 #endif
3383         u8 *bd;                 /* BD pointer */
3384         u32 bd_status;
3385         u8 txQ = 0;
3386
3387         ugeth_vdbg("%s: IN", __FUNCTION__);
3388
3389         spin_lock_irq(&ugeth->lock);
3390
3391         dev->stats.tx_bytes += skb->len;
3392
3393         /* Start from the next BD that should be filled */
3394         bd = ugeth->txBd[txQ];
3395         bd_status = in_be32((u32 *)bd);
3396         /* Save the skb pointer so we can free it later */
3397         ugeth->tx_skbuff[txQ][ugeth->skb_curtx[txQ]] = skb;
3398
3399         /* Update the current skb pointer (wrapping if this was the last) */
3400         ugeth->skb_curtx[txQ] =
3401             (ugeth->skb_curtx[txQ] +
3402              1) & TX_RING_MOD_MASK(ugeth->ug_info->bdRingLenTx[txQ]);
3403
3404         /* set up the buffer descriptor */
3405         out_be32(&((struct qe_bd *)bd)->buf,
3406                       dma_map_single(NULL, skb->data, skb->len, DMA_TO_DEVICE));
3407
3408         /* printk(KERN_DEBUG"skb->data is 0x%x\n",skb->data); */
3409
3410         bd_status = (bd_status & T_W) | T_R | T_I | T_L | skb->len;
3411
3412         /* set bd status and length */
3413         out_be32((u32 *)bd, bd_status);
3414
3415         dev->trans_start = jiffies;
3416
3417         /* Move to next BD in the ring */
3418         if (!(bd_status & T_W))
3419                 bd += sizeof(struct qe_bd);
3420         else
3421                 bd = ugeth->p_tx_bd_ring[txQ];
3422
3423         /* If the next BD still needs to be cleaned up, then the bds
3424            are full.  We need to tell the kernel to stop sending us stuff. */
3425         if (bd == ugeth->confBd[txQ]) {
3426                 if (!netif_queue_stopped(dev))
3427                         netif_stop_queue(dev);
3428         }
3429
3430         ugeth->txBd[txQ] = bd;
3431
3432         if (ugeth->p_scheduler) {
3433                 ugeth->cpucount[txQ]++;
3434                 /* Indicate to QE that there are more Tx bds ready for
3435                 transmission */
3436                 /* This is done by writing a running counter of the bd
3437                 count to the scheduler PRAM. */
3438                 out_be16(ugeth->p_cpucount[txQ], ugeth->cpucount[txQ]);
3439         }
3440
3441 #ifdef CONFIG_UGETH_TX_ON_DEMAND
3442         uccf = ugeth->uccf;
3443         out_be16(uccf->p_utodr, UCC_FAST_TOD);
3444 #endif
3445         spin_unlock_irq(&ugeth->lock);
3446
3447         return 0;
3448 }
3449
3450 static int ucc_geth_rx(struct ucc_geth_private *ugeth, u8 rxQ, int rx_work_limit)
3451 {
3452         struct sk_buff *skb;
3453         u8 *bd;
3454         u16 length, howmany = 0;
3455         u32 bd_status;
3456         u8 *bdBuffer;
3457
3458         ugeth_vdbg("%s: IN", __FUNCTION__);
3459
3460         /* collect received buffers */
3461         bd = ugeth->rxBd[rxQ];
3462
3463         bd_status = in_be32((u32 *)bd);
3464
3465         /* while there are received buffers and BD is full (~R_E) */
3466         while (!((bd_status & (R_E)) || (--rx_work_limit < 0))) {
3467                 bdBuffer = (u8 *) in_be32(&((struct qe_bd *)bd)->buf);
3468                 length = (u16) ((bd_status & BD_LENGTH_MASK) - 4);
3469                 skb = ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]];
3470
3471                 /* determine whether buffer is first, last, first and last
3472                 (single buffer frame) or middle (not first and not last) */
3473                 if (!skb ||
3474                     (!(bd_status & (R_F | R_L))) ||
3475                     (bd_status & R_ERRORS_FATAL)) {
3476                         if (netif_msg_rx_err(ugeth))
3477                                 ugeth_err("%s, %d: ERROR!!! skb - 0x%08x",
3478                                            __FUNCTION__, __LINE__, (u32) skb);
3479                         if (skb)
3480                                 dev_kfree_skb_any(skb);
3481
3482                         ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]] = NULL;
3483                         dev->stats.rx_dropped++;
3484                 } else {
3485                         dev->stats.rx_packets++;
3486                         howmany++;
3487
3488                         /* Prep the skb for the packet */
3489                         skb_put(skb, length);
3490
3491                         /* Tell the skb what kind of packet this is */
3492                         skb->protocol = eth_type_trans(skb, ugeth->dev);
3493
3494                         dev->stats.rx_bytes += length;
3495                         /* Send the packet up the stack */
3496 #ifdef CONFIG_UGETH_NAPI
3497                         netif_receive_skb(skb);
3498 #else
3499                         netif_rx(skb);
3500 #endif                          /* CONFIG_UGETH_NAPI */
3501                 }
3502
3503                 ugeth->dev->last_rx = jiffies;
3504
3505                 skb = get_new_skb(ugeth, bd);
3506                 if (!skb) {
3507                         if (netif_msg_rx_err(ugeth))
3508                                 ugeth_warn("%s: No Rx Data Buffer", __FUNCTION__);
3509                         dev->stats.rx_dropped++;
3510                         break;
3511                 }
3512
3513                 ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]] = skb;
3514
3515                 /* update to point at the next skb */
3516                 ugeth->skb_currx[rxQ] =
3517                     (ugeth->skb_currx[rxQ] +
3518                      1) & RX_RING_MOD_MASK(ugeth->ug_info->bdRingLenRx[rxQ]);
3519
3520                 if (bd_status & R_W)
3521                         bd = ugeth->p_rx_bd_ring[rxQ];
3522                 else
3523                         bd += sizeof(struct qe_bd);
3524
3525                 bd_status = in_be32((u32 *)bd);
3526         }
3527
3528         ugeth->rxBd[rxQ] = bd;
3529         return howmany;
3530 }
3531
3532 static int ucc_geth_tx(struct net_device *dev, u8 txQ)
3533 {
3534         /* Start from the next BD that should be filled */
3535         struct ucc_geth_private *ugeth = netdev_priv(dev);
3536         u8 *bd;                 /* BD pointer */
3537         u32 bd_status;
3538
3539         bd = ugeth->confBd[txQ];
3540         bd_status = in_be32((u32 *)bd);
3541
3542         /* Normal processing. */
3543         while ((bd_status & T_R) == 0) {
3544                 /* BD contains already transmitted buffer.   */
3545                 /* Handle the transmitted buffer and release */
3546                 /* the BD to be used with the current frame  */
3547
3548                 if ((bd == ugeth->txBd[txQ]) && (netif_queue_stopped(dev) == 0))
3549                         break;
3550
3551                 dev->stats.tx_packets++;
3552
3553                 /* Free the sk buffer associated with this TxBD */
3554                 dev_kfree_skb_irq(ugeth->
3555                                   tx_skbuff[txQ][ugeth->skb_dirtytx[txQ]]);
3556                 ugeth->tx_skbuff[txQ][ugeth->skb_dirtytx[txQ]] = NULL;
3557                 ugeth->skb_dirtytx[txQ] =
3558                     (ugeth->skb_dirtytx[txQ] +
3559                      1) & TX_RING_MOD_MASK(ugeth->ug_info->bdRingLenTx[txQ]);
3560
3561                 /* We freed a buffer, so now we can restart transmission */
3562                 if (netif_queue_stopped(dev))
3563                         netif_wake_queue(dev);
3564
3565                 /* Advance the confirmation BD pointer */
3566                 if (!(bd_status & T_W))
3567                         bd += sizeof(struct qe_bd);
3568                 else
3569                         bd = ugeth->p_tx_bd_ring[txQ];
3570                 bd_status = in_be32((u32 *)bd);
3571         }
3572         ugeth->confBd[txQ] = bd;
3573         return 0;
3574 }
3575
3576 #ifdef CONFIG_UGETH_NAPI
3577 static int ucc_geth_poll(struct napi_struct *napi, int budget)
3578 {
3579         struct ucc_geth_private *ugeth = container_of(napi, struct ucc_geth_private, napi);
3580         struct net_device *dev = ugeth->dev;
3581         struct ucc_geth_info *ug_info;
3582         int howmany, i;
3583
3584         ug_info = ugeth->ug_info;
3585
3586         howmany = 0;
3587         for (i = 0; i < ug_info->numQueuesRx; i++)
3588                 howmany += ucc_geth_rx(ugeth, i, budget - howmany);
3589
3590         if (howmany < budget) {
3591                 struct ucc_fast_private *uccf;
3592                 u32 uccm;
3593
3594                 netif_rx_complete(dev, napi);
3595                 uccf = ugeth->uccf;
3596                 uccm = in_be32(uccf->p_uccm);
3597                 uccm |= UCCE_RX_EVENTS;
3598                 out_be32(uccf->p_uccm, uccm);
3599         }
3600
3601         return howmany;
3602 }
3603 #endif                          /* CONFIG_UGETH_NAPI */
3604
3605 static irqreturn_t ucc_geth_irq_handler(int irq, void *info)
3606 {
3607         struct net_device *dev = (struct net_device *)info;
3608         struct ucc_geth_private *ugeth = netdev_priv(dev);
3609         struct ucc_fast_private *uccf;
3610         struct ucc_geth_info *ug_info;
3611         register u32 ucce;
3612         register u32 uccm;
3613 #ifndef CONFIG_UGETH_NAPI
3614         register u32 rx_mask;
3615 #endif
3616         register u32 tx_mask;
3617         u8 i;
3618
3619         ugeth_vdbg("%s: IN", __FUNCTION__);
3620
3621         if (!ugeth)
3622                 return IRQ_NONE;
3623
3624         uccf = ugeth->uccf;
3625         ug_info = ugeth->ug_info;
3626
3627         /* read and clear events */
3628         ucce = (u32) in_be32(uccf->p_ucce);
3629         uccm = (u32) in_be32(uccf->p_uccm);
3630         ucce &= uccm;
3631         out_be32(uccf->p_ucce, ucce);
3632
3633         /* check for receive events that require processing */
3634         if (ucce & UCCE_RX_EVENTS) {
3635 #ifdef CONFIG_UGETH_NAPI
3636                 if (netif_rx_schedule_prep(dev, &ugeth->napi)) {
3637                         uccm &= ~UCCE_RX_EVENTS;
3638                         out_be32(uccf->p_uccm, uccm);
3639                         __netif_rx_schedule(dev, &ugeth->napi);
3640                 }
3641 #else
3642                 rx_mask = UCCE_RXBF_SINGLE_MASK;
3643                 for (i = 0; i < ug_info->numQueuesRx; i++) {
3644                         if (ucce & rx_mask)
3645                                 ucc_geth_rx(ugeth, i, (int)ugeth->ug_info->bdRingLenRx[i]);
3646                         ucce &= ~rx_mask;
3647                         rx_mask <<= 1;
3648                 }
3649 #endif /* CONFIG_UGETH_NAPI */
3650         }
3651
3652         /* Tx event processing */
3653         if (ucce & UCCE_TX_EVENTS) {
3654                 spin_lock(&ugeth->lock);
3655                 tx_mask = UCCE_TXBF_SINGLE_MASK;
3656                 for (i = 0; i < ug_info->numQueuesTx; i++) {
3657                         if (ucce & tx_mask)
3658                                 ucc_geth_tx(dev, i);
3659                         ucce &= ~tx_mask;
3660                         tx_mask <<= 1;
3661                 }
3662                 spin_unlock(&ugeth->lock);
3663         }
3664
3665         /* Errors and other events */
3666         if (ucce & UCCE_OTHER) {
3667                 if (ucce & UCCE_BSY) {
3668                         dev->stats.rx_errors++;
3669                 }
3670                 if (ucce & UCCE_TXE) {
3671                         dev->stats.tx_errors++;
3672                 }
3673         }
3674
3675         return IRQ_HANDLED;
3676 }
3677
3678 /* Called when something needs to use the ethernet device */
3679 /* Returns 0 for success. */
3680 static int ucc_geth_open(struct net_device *dev)
3681 {
3682         struct ucc_geth_private *ugeth = netdev_priv(dev);
3683         int err;
3684
3685         ugeth_vdbg("%s: IN", __FUNCTION__);
3686
3687         /* Test station address */
3688         if (dev->dev_addr[0] & ENET_GROUP_ADDR) {
3689                 if (netif_msg_ifup(ugeth))
3690                         ugeth_err("%s: Multicast address used for station address"
3691                                   " - is this what you wanted?", __FUNCTION__);
3692                 return -EINVAL;
3693         }
3694
3695         err = ucc_struct_init(ugeth);
3696         if (err) {
3697                 if (netif_msg_ifup(ugeth))
3698                         ugeth_err("%s: Cannot configure internal struct, aborting.", dev->name);
3699                 return err;
3700         }
3701
3702 #ifdef CONFIG_UGETH_NAPI
3703         napi_enable(&ugeth->napi);
3704 #endif
3705         err = ucc_geth_startup(ugeth);
3706         if (err) {
3707                 if (netif_msg_ifup(ugeth))
3708                         ugeth_err("%s: Cannot configure net device, aborting.",
3709                                   dev->name);
3710                 goto out_err;
3711         }
3712
3713         err = adjust_enet_interface(ugeth);
3714         if (err) {
3715                 if (netif_msg_ifup(ugeth))
3716                         ugeth_err("%s: Cannot configure net device, aborting.",
3717                                   dev->name);
3718                 goto out_err;
3719         }
3720
3721         /*       Set MACSTNADDR1, MACSTNADDR2                */
3722         /* For more details see the hardware spec.           */
3723         init_mac_station_addr_regs(dev->dev_addr[0],
3724                                    dev->dev_addr[1],
3725                                    dev->dev_addr[2],
3726                                    dev->dev_addr[3],
3727                                    dev->dev_addr[4],
3728                                    dev->dev_addr[5],
3729                                    &ugeth->ug_regs->macstnaddr1,
3730                                    &ugeth->ug_regs->macstnaddr2);
3731
3732         err = init_phy(dev);
3733         if (err) {
3734                 if (netif_msg_ifup(ugeth))
3735                         ugeth_err("%s: Cannot initialize PHY, aborting.", dev->name);
3736                 goto out_err;
3737         }
3738
3739         phy_start(ugeth->phydev);
3740
3741         err =
3742             request_irq(ugeth->ug_info->uf_info.irq, ucc_geth_irq_handler, 0,
3743                         "UCC Geth", dev);
3744         if (err) {
3745                 if (netif_msg_ifup(ugeth))
3746                         ugeth_err("%s: Cannot get IRQ for net device, aborting.",
3747                                   dev->name);
3748                 ucc_geth_stop(ugeth);
3749                 goto out_err;
3750         }
3751
3752         err = ugeth_enable(ugeth, COMM_DIR_RX_AND_TX);
3753         if (err) {
3754                 if (netif_msg_ifup(ugeth))
3755                         ugeth_err("%s: Cannot enable net device, aborting.", dev->name);
3756                 ucc_geth_stop(ugeth);
3757                 goto out_err;
3758         }
3759
3760         netif_start_queue(dev);
3761
3762         return err;
3763
3764 out_err:
3765 #ifdef CONFIG_UGETH_NAPI
3766         napi_disable(&ugeth->napi);
3767 #endif
3768         return err;
3769 }
3770
3771 /* Stops the kernel queue, and halts the controller */
3772 static int ucc_geth_close(struct net_device *dev)
3773 {
3774         struct ucc_geth_private *ugeth = netdev_priv(dev);
3775
3776         ugeth_vdbg("%s: IN", __FUNCTION__);
3777
3778 #ifdef CONFIG_UGETH_NAPI
3779         napi_disable(&ugeth->napi);
3780 #endif
3781
3782         ucc_geth_stop(ugeth);
3783
3784         phy_disconnect(ugeth->phydev);
3785         ugeth->phydev = NULL;
3786
3787         netif_stop_queue(dev);
3788
3789         return 0;
3790 }
3791
3792 static phy_interface_t to_phy_interface(const char *phy_connection_type)
3793 {
3794         if (strcasecmp(phy_connection_type, "mii") == 0)
3795                 return PHY_INTERFACE_MODE_MII;
3796         if (strcasecmp(phy_connection_type, "gmii") == 0)
3797                 return PHY_INTERFACE_MODE_GMII;
3798         if (strcasecmp(phy_connection_type, "tbi") == 0)
3799                 return PHY_INTERFACE_MODE_TBI;
3800         if (strcasecmp(phy_connection_type, "rmii") == 0)
3801                 return PHY_INTERFACE_MODE_RMII;
3802         if (strcasecmp(phy_connection_type, "rgmii") == 0)
3803                 return PHY_INTERFACE_MODE_RGMII;
3804         if (strcasecmp(phy_connection_type, "rgmii-id") == 0)
3805                 return PHY_INTERFACE_MODE_RGMII_ID;
3806         if (strcasecmp(phy_connection_type, "rtbi") == 0)
3807                 return PHY_INTERFACE_MODE_RTBI;
3808
3809         return PHY_INTERFACE_MODE_MII;
3810 }
3811
3812 static int ucc_geth_probe(struct of_device* ofdev, const struct of_device_id *match)
3813 {
3814         struct device *device = &ofdev->dev;
3815         struct device_node *np = ofdev->node;
3816         struct device_node *mdio;
3817         struct net_device *dev = NULL;
3818         struct ucc_geth_private *ugeth = NULL;
3819         struct ucc_geth_info *ug_info;
3820         struct resource res;
3821         struct device_node *phy;
3822         int err, ucc_num, max_speed = 0;
3823         const phandle *ph;
3824         const unsigned int *prop;
3825         const void *mac_addr;
3826         phy_interface_t phy_interface;
3827         static const int enet_to_speed[] = {
3828                 SPEED_10, SPEED_10, SPEED_10,
3829                 SPEED_100, SPEED_100, SPEED_100,
3830                 SPEED_1000, SPEED_1000, SPEED_1000, SPEED_1000,
3831         };
3832         static const phy_interface_t enet_to_phy_interface[] = {
3833                 PHY_INTERFACE_MODE_MII, PHY_INTERFACE_MODE_RMII,
3834                 PHY_INTERFACE_MODE_RGMII, PHY_INTERFACE_MODE_MII,
3835                 PHY_INTERFACE_MODE_RMII, PHY_INTERFACE_MODE_RGMII,
3836                 PHY_INTERFACE_MODE_GMII, PHY_INTERFACE_MODE_RGMII,
3837                 PHY_INTERFACE_MODE_TBI, PHY_INTERFACE_MODE_RTBI,
3838         };
3839
3840         ugeth_vdbg("%s: IN", __FUNCTION__);
3841
3842         prop = of_get_property(np, "device-id", NULL);
3843         ucc_num = *prop - 1;
3844         if ((ucc_num < 0) || (ucc_num > 7))
3845                 return -ENODEV;
3846
3847         ug_info = &ugeth_info[ucc_num];
3848         if (ug_info == NULL) {
3849                 if (netif_msg_probe(&debug))
3850                         ugeth_err("%s: [%d] Missing additional data!",
3851                                         __FUNCTION__, ucc_num);
3852                 return -ENODEV;
3853         }
3854
3855         ug_info->uf_info.ucc_num = ucc_num;
3856
3857         prop = of_get_property(np, "rx-clock", NULL);
3858         ug_info->uf_info.rx_clock = *prop;
3859         prop = of_get_property(np, "tx-clock", NULL);
3860         ug_info->uf_info.tx_clock = *prop;
3861         err = of_address_to_resource(np, 0, &res);
3862         if (err)
3863                 return -EINVAL;
3864
3865         ug_info->uf_info.regs = res.start;
3866         ug_info->uf_info.irq = irq_of_parse_and_map(np, 0);
3867
3868         ph = of_get_property(np, "phy-handle", NULL);
3869         phy = of_find_node_by_phandle(*ph);
3870
3871         if (phy == NULL)
3872                 return -ENODEV;
3873
3874         /* set the PHY address */
3875         prop = of_get_property(phy, "reg", NULL);
3876         if (prop == NULL)
3877                 return -1;
3878         ug_info->phy_address = *prop;
3879
3880         /* get the phy interface type, or default to MII */
3881         prop = of_get_property(np, "phy-connection-type", NULL);
3882         if (!prop) {
3883                 /* handle interface property present in old trees */
3884                 prop = of_get_property(phy, "interface", NULL);
3885                 if (prop != NULL) {
3886                         phy_interface = enet_to_phy_interface[*prop];
3887                         max_speed = enet_to_speed[*prop];
3888                 } else
3889                         phy_interface = PHY_INTERFACE_MODE_MII;
3890         } else {
3891                 phy_interface = to_phy_interface((const char *)prop);
3892         }
3893
3894         /* get speed, or derive from PHY interface */
3895         if (max_speed == 0)
3896                 switch (phy_interface) {
3897                 case PHY_INTERFACE_MODE_GMII:
3898                 case PHY_INTERFACE_MODE_RGMII:
3899                 case PHY_INTERFACE_MODE_RGMII_ID:
3900                 case PHY_INTERFACE_MODE_TBI:
3901                 case PHY_INTERFACE_MODE_RTBI:
3902                         max_speed = SPEED_1000;
3903                         break;
3904                 default:
3905                         max_speed = SPEED_100;
3906                         break;
3907                 }
3908
3909         if (max_speed == SPEED_1000) {
3910                 /* configure muram FIFOs for gigabit operation */
3911                 ug_info->uf_info.urfs = UCC_GETH_URFS_GIGA_INIT;
3912                 ug_info->uf_info.urfet = UCC_GETH_URFET_GIGA_INIT;
3913                 ug_info->uf_info.urfset = UCC_GETH_URFSET_GIGA_INIT;
3914                 ug_info->uf_info.utfs = UCC_GETH_UTFS_GIGA_INIT;
3915                 ug_info->uf_info.utfet = UCC_GETH_UTFET_GIGA_INIT;
3916                 ug_info->uf_info.utftt = UCC_GETH_UTFTT_GIGA_INIT;
3917         }
3918
3919         /* Set the bus id */
3920         mdio = of_get_parent(phy);
3921
3922         if (mdio == NULL)
3923                 return -1;
3924
3925         err = of_address_to_resource(mdio, 0, &res);
3926         of_node_put(mdio);
3927
3928         if (err)
3929                 return -1;
3930
3931         ug_info->mdio_bus = res.start;
3932
3933         if (netif_msg_probe(&debug))
3934                 printk(KERN_INFO "ucc_geth: UCC%1d at 0x%8x (irq = %d) \n",
3935                         ug_info->uf_info.ucc_num + 1, ug_info->uf_info.regs,
3936                         ug_info->uf_info.irq);
3937
3938         /* Create an ethernet device instance */
3939         dev = alloc_etherdev(sizeof(*ugeth));
3940
3941         if (dev == NULL)
3942                 return -ENOMEM;
3943
3944         ugeth = netdev_priv(dev);
3945         spin_lock_init(&ugeth->lock);
3946
3947         dev_set_drvdata(device, dev);
3948
3949         /* Set the dev->base_addr to the gfar reg region */
3950         dev->base_addr = (unsigned long)(ug_info->uf_info.regs);
3951
3952         SET_NETDEV_DEV(dev, device);
3953
3954         /* Fill in the dev structure */
3955         uec_set_ethtool_ops(dev);
3956         dev->open = ucc_geth_open;
3957         dev->hard_start_xmit = ucc_geth_start_xmit;
3958         dev->tx_timeout = ucc_geth_timeout;
3959         dev->watchdog_timeo = TX_TIMEOUT;
3960 #ifdef CONFIG_UGETH_NAPI
3961         netif_napi_add(dev, &ugeth->napi, ucc_geth_poll, UCC_GETH_DEV_WEIGHT);
3962 #endif                          /* CONFIG_UGETH_NAPI */
3963         dev->stop = ucc_geth_close;
3964 //    dev->change_mtu = ucc_geth_change_mtu;
3965         dev->mtu = 1500;
3966         dev->set_multicast_list = ucc_geth_set_multi;
3967
3968         ugeth->msg_enable = netif_msg_init(debug.msg_enable, UGETH_MSG_DEFAULT);
3969         ugeth->phy_interface = phy_interface;
3970         ugeth->max_speed = max_speed;
3971
3972         err = register_netdev(dev);
3973         if (err) {
3974                 if (netif_msg_probe(ugeth))
3975                         ugeth_err("%s: Cannot register net device, aborting.",
3976                                   dev->name);
3977                 free_netdev(dev);
3978                 return err;
3979         }
3980
3981         mac_addr = of_get_mac_address(np);
3982         if (mac_addr)
3983                 memcpy(dev->dev_addr, mac_addr, 6);
3984
3985         ugeth->ug_info = ug_info;
3986         ugeth->dev = dev;
3987
3988         return 0;
3989 }
3990
3991 static int ucc_geth_remove(struct of_device* ofdev)
3992 {
3993         struct device *device = &ofdev->dev;
3994         struct net_device *dev = dev_get_drvdata(device);
3995         struct ucc_geth_private *ugeth = netdev_priv(dev);
3996
3997         dev_set_drvdata(device, NULL);
3998         ucc_geth_memclean(ugeth);
3999         free_netdev(dev);
4000
4001         return 0;
4002 }
4003
4004 static struct of_device_id ucc_geth_match[] = {
4005         {
4006                 .type = "network",
4007                 .compatible = "ucc_geth",
4008         },
4009         {},
4010 };
4011
4012 MODULE_DEVICE_TABLE(of, ucc_geth_match);
4013
4014 static struct of_platform_driver ucc_geth_driver = {
4015         .name           = DRV_NAME,
4016         .match_table    = ucc_geth_match,
4017         .probe          = ucc_geth_probe,
4018         .remove         = ucc_geth_remove,
4019 };
4020
4021 static int __init ucc_geth_init(void)
4022 {
4023         int i, ret;
4024
4025         ret = uec_mdio_init();
4026
4027         if (ret)
4028                 return ret;
4029
4030         if (netif_msg_drv(&debug))
4031                 printk(KERN_INFO "ucc_geth: " DRV_DESC "\n");
4032         for (i = 0; i < 8; i++)
4033                 memcpy(&(ugeth_info[i]), &ugeth_primary_info,
4034                        sizeof(ugeth_primary_info));
4035
4036         ret = of_register_platform_driver(&ucc_geth_driver);
4037
4038         if (ret)
4039                 uec_mdio_exit();
4040
4041         return ret;
4042 }
4043
4044 static void __exit ucc_geth_exit(void)
4045 {
4046         of_unregister_platform_driver(&ucc_geth_driver);
4047         uec_mdio_exit();
4048 }
4049
4050 module_init(ucc_geth_init);
4051 module_exit(ucc_geth_exit);
4052
4053 MODULE_AUTHOR("Freescale Semiconductor, Inc");
4054 MODULE_DESCRIPTION(DRV_DESC);
4055 MODULE_VERSION(DRV_VERSION);
4056 MODULE_LICENSE("GPL");