drivers/net/ucc_geth.c

   1 /*
   2  * Copyright (C) Freescale Semicondutor, Inc. 2006. All rights reserved.
   3  *
   4  * Author: Shlomi Gridish <gridish@freescale.com>
   5  *
   6  * Description:
   7  * QE UCC Gigabit Ethernet Driver
   8  *
   9  * Changelog:
  10  * Jul 6, 2006 Li Yang <LeoLi@freescale.com>
  11  * - Rearrange code and style fixes
  12  *
  13  * This program is free software; you can redistribute  it and/or modify it
  14  * under  the terms of  the GNU General  Public License as published by the
  15  * Free Software Foundation;  either version 2 of the  License, or (at your
  16  * option) any later version.
  17  */
  18 #include <linux/kernel.h>
  19 #include <linux/init.h>
  20 #include <linux/errno.h>
  21 #include <linux/slab.h>
  22 #include <linux/stddef.h>
  23 #include <linux/interrupt.h>
  24 #include <linux/netdevice.h>
  25 #include <linux/etherdevice.h>
  26 #include <linux/skbuff.h>
  27 #include <linux/spinlock.h>
  28 #include <linux/mm.h>
  29 #include <linux/ethtool.h>
  30 #include <linux/delay.h>
  31 #include <linux/dma-mapping.h>
  32 #include <linux/fsl_devices.h>
  33 #include <linux/ethtool.h>
  34 #include <linux/platform_device.h>
  35 #include <linux/mii.h>
  36
  37 #include <asm/uaccess.h>
  38 #include <asm/irq.h>
  39 #include <asm/io.h>
  40 #include <asm/immap_qe.h>
  41 #include <asm/qe.h>
  42 #include <asm/ucc.h>
  43 #include <asm/ucc_fast.h>
  44
  45 #include "ucc_geth.h"
  46 #include "ucc_geth_phy.h"
  47
  48 #undef DEBUG
  49
  50 #define DRV_DESC "QE UCC Gigabit Ethernet Controller version:June 20, 2006"
  51 #define DRV_NAME "ucc_geth"
  52
  53 #define ugeth_printk(level, format, arg...)  \
  54         printk(level format "\n", ## arg)
  55
  56 #define ugeth_dbg(format, arg...)            \
  57         ugeth_printk(KERN_DEBUG , format , ## arg)
  58 #define ugeth_err(format, arg...)            \
  59         ugeth_printk(KERN_ERR , format , ## arg)
  60 #define ugeth_info(format, arg...)           \
  61         ugeth_printk(KERN_INFO , format , ## arg)
  62 #define ugeth_warn(format, arg...)           \
  63         ugeth_printk(KERN_WARNING , format , ## arg)
  64
  65 #ifdef UGETH_VERBOSE_DEBUG
  66 #define ugeth_vdbg ugeth_dbg
  67 #else
  68 #define ugeth_vdbg(fmt, args...) do { } while (0)
  69 #endif                          /* UGETH_VERBOSE_DEBUG */
  70
  71 static DEFINE_SPINLOCK(ugeth_lock);
  72
  73 static ucc_geth_info_t ugeth_primary_info = {
  74         .uf_info = {
  75                     .bd_mem_part = MEM_PART_SYSTEM,
  76                     .rtsm = UCC_FAST_SEND_IDLES_BETWEEN_FRAMES,
  77                     .max_rx_buf_length = 1536,
  78 /* FIXME: should be changed in run time for 1G and 100M */
  79 #ifdef CONFIG_UGETH_HAS_GIGA
  80                     .urfs = UCC_GETH_URFS_GIGA_INIT,
  81                     .urfet = UCC_GETH_URFET_GIGA_INIT,
  82                     .urfset = UCC_GETH_URFSET_GIGA_INIT,
  83                     .utfs = UCC_GETH_UTFS_GIGA_INIT,
  84                     .utfet = UCC_GETH_UTFET_GIGA_INIT,
  85                     .utftt = UCC_GETH_UTFTT_GIGA_INIT,
  86 #else
  87                     .urfs = UCC_GETH_URFS_INIT,
  88                     .urfet = UCC_GETH_URFET_INIT,
  89                     .urfset = UCC_GETH_URFSET_INIT,
  90                     .utfs = UCC_GETH_UTFS_INIT,
  91                     .utfet = UCC_GETH_UTFET_INIT,
  92                     .utftt = UCC_GETH_UTFTT_INIT,
  93 #endif
  94                     .ufpt = 256,
  95                     .mode = UCC_FAST_PROTOCOL_MODE_ETHERNET,
  96                     .ttx_trx = UCC_FAST_GUMR_TRANSPARENT_TTX_TRX_NORMAL,
  97                     .tenc = UCC_FAST_TX_ENCODING_NRZ,
  98                     .renc = UCC_FAST_RX_ENCODING_NRZ,
  99                     .tcrc = UCC_FAST_16_BIT_CRC,
 100                     .synl = UCC_FAST_SYNC_LEN_NOT_USED,
 101                     },
 102         .numQueuesTx = 1,
 103         .numQueuesRx = 1,
 104         .extendedFilteringChainPointer = ((uint32_t) NULL),
 105         .typeorlen = 3072 /*1536 */ ,
 106         .nonBackToBackIfgPart1 = 0x40,
 107         .nonBackToBackIfgPart2 = 0x60,
 108         .miminumInterFrameGapEnforcement = 0x50,
 109         .backToBackInterFrameGap = 0x60,
 110         .mblinterval = 128,
 111         .nortsrbytetime = 5,
 112         .fracsiz = 1,
 113         .strictpriorityq = 0xff,
 114         .altBebTruncation = 0xa,
 115         .excessDefer = 1,
 116         .maxRetransmission = 0xf,
 117         .collisionWindow = 0x37,
 118         .receiveFlowControl = 1,
 119         .maxGroupAddrInHash = 4,
 120         .maxIndAddrInHash = 4,
 121         .prel = 7,
 122         .maxFrameLength = 1518,
 123         .minFrameLength = 64,
 124         .maxD1Length = 1520,
 125         .maxD2Length = 1520,
 126         .vlantype = 0x8100,
 127         .ecamptr = ((uint32_t) NULL),
 128         .eventRegMask = UCCE_OTHER,
 129         .pausePeriod = 0xf000,
 130         .interruptcoalescingmaxvalue = {1, 1, 1, 1, 1, 1, 1, 1},
 131         .bdRingLenTx = {
 132                         TX_BD_RING_LEN,
 133                         TX_BD_RING_LEN,
 134                         TX_BD_RING_LEN,
 135                         TX_BD_RING_LEN,
 136                         TX_BD_RING_LEN,
 137                         TX_BD_RING_LEN,
 138                         TX_BD_RING_LEN,
 139                         TX_BD_RING_LEN},
 140
 141         .bdRingLenRx = {
 142                         RX_BD_RING_LEN,
 143                         RX_BD_RING_LEN,
 144                         RX_BD_RING_LEN,
 145                         RX_BD_RING_LEN,
 146                         RX_BD_RING_LEN,
 147                         RX_BD_RING_LEN,
 148                         RX_BD_RING_LEN,
 149                         RX_BD_RING_LEN},
 150
 151         .numStationAddresses = UCC_GETH_NUM_OF_STATION_ADDRESSES_1,
 152         .largestexternallookupkeysize =
 153             QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_NONE,
 154         .statisticsMode = UCC_GETH_STATISTICS_GATHERING_MODE_NONE,
 155         .vlanOperationTagged = UCC_GETH_VLAN_OPERATION_TAGGED_NOP,
 156         .vlanOperationNonTagged = UCC_GETH_VLAN_OPERATION_NON_TAGGED_NOP,
 157         .rxQoSMode = UCC_GETH_QOS_MODE_DEFAULT,
 158         .aufc = UPSMR_AUTOMATIC_FLOW_CONTROL_MODE_NONE,
 159         .padAndCrc = MACCFG2_PAD_AND_CRC_MODE_PAD_AND_CRC,
 160         .numThreadsTx = UCC_GETH_NUM_OF_THREADS_4,
 161         .numThreadsRx = UCC_GETH_NUM_OF_THREADS_4,
 162         .riscTx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
 163         .riscRx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
 164 };
 165
 166 static ucc_geth_info_t ugeth_info[8];
 167
 168 #ifdef DEBUG
 169 static void mem_disp(u8 *addr, int size)
 170 {
 171         u8 *i;
 172         int size16Aling = (size >> 4) << 4;
 173         int size4Aling = (size >> 2) << 2;
 174         int notAlign = 0;
 175         if (size % 16)
 176                 notAlign = 1;
 177
 178         for (i = addr; (u32) i < (u32) addr + size16Aling; i += 16)
 179                 printk("0x%08x: %08x %08x %08x %08x\r\n",
 180                        (u32) i,
 181                        *((u32 *) (i)),
 182                        *((u32 *) (i + 4)),
 183                        *((u32 *) (i + 8)), *((u32 *) (i + 12)));
 184         if (notAlign == 1)
 185                 printk("0x%08x: ", (u32) i);
 186         for (; (u32) i < (u32) addr + size4Aling; i += 4)
 187                 printk("%08x ", *((u32 *) (i)));
 188         for (; (u32) i < (u32) addr + size; i++)
 189                 printk("%02x", *((u8 *) (i)));
 190         if (notAlign == 1)
 191                 printk("\r\n");
 192 }
 193 #endif /* DEBUG */
 194
 195 #ifdef CONFIG_UGETH_FILTERING
 196 static void enqueue(struct list_head *node, struct list_head *lh)
 197 {
 198         unsigned long flags;
 199
 200         spin_lock_irqsave(ugeth_lock, flags);
 201         list_add_tail(node, lh);
 202         spin_unlock_irqrestore(ugeth_lock, flags);
 203 }
 204 #endif /* CONFIG_UGETH_FILTERING */
 205
 206 static struct list_head *dequeue(struct list_head *lh)
 207 {
 208         unsigned long flags;
 209
 210         spin_lock_irqsave(ugeth_lock, flags);
 211         if (!list_empty(lh)) {
 212                 struct list_head *node = lh->next;
 213                 list_del(node);
 214                 spin_unlock_irqrestore(ugeth_lock, flags);
 215                 return node;
 216         } else {
 217                 spin_unlock_irqrestore(ugeth_lock, flags);
 218                 return NULL;
 219         }
 220 }
 221
 222 static int get_interface_details(enet_interface_e enet_interface,
 223                                  enet_speed_e *speed,
 224                                  int *r10m,
 225                                  int *rmm,
 226                                  int *rpm,
 227                                  int *tbi, int *limited_to_full_duplex)
 228 {
 229         /* Analyze enet_interface according to Interface Mode
 230         Configuration table */
 231         switch (enet_interface) {
 232         case ENET_10_MII:
 233                 *speed = ENET_SPEED_10BT;
 234                 break;
 235         case ENET_10_RMII:
 236                 *speed = ENET_SPEED_10BT;
 237                 *r10m = 1;
 238                 *rmm = 1;
 239                 break;
 240         case ENET_10_RGMII:
 241                 *speed = ENET_SPEED_10BT;
 242                 *rpm = 1;
 243                 *r10m = 1;
 244                 *limited_to_full_duplex = 1;
 245                 break;
 246         case ENET_100_MII:
 247                 *speed = ENET_SPEED_100BT;
 248                 break;
 249         case ENET_100_RMII:
 250                 *speed = ENET_SPEED_100BT;
 251                 *rmm = 1;
 252                 break;
 253         case ENET_100_RGMII:
 254                 *speed = ENET_SPEED_100BT;
 255                 *rpm = 1;
 256                 *limited_to_full_duplex = 1;
 257                 break;
 258         case ENET_1000_GMII:
 259                 *speed = ENET_SPEED_1000BT;
 260                 *limited_to_full_duplex = 1;
 261                 break;
 262         case ENET_1000_RGMII:
 263                 *speed = ENET_SPEED_1000BT;
 264                 *rpm = 1;
 265                 *limited_to_full_duplex = 1;
 266                 break;
 267         case ENET_1000_TBI:
 268                 *speed = ENET_SPEED_1000BT;
 269                 *tbi = 1;
 270                 *limited_to_full_duplex = 1;
 271                 break;
 272         case ENET_1000_RTBI:
 273                 *speed = ENET_SPEED_1000BT;
 274                 *rpm = 1;
 275                 *tbi = 1;
 276                 *limited_to_full_duplex = 1;
 277                 break;
 278         default:
 279                 return -EINVAL;
 280                 break;
 281         }
 282
 283         return 0;
 284 }
 285
 286 static struct sk_buff *get_new_skb(ucc_geth_private_t *ugeth, u8 *bd)
 287 {
 288         struct sk_buff *skb = NULL;
 289
 290         skb = dev_alloc_skb(ugeth->ug_info->uf_info.max_rx_buf_length +
 291                                   UCC_GETH_RX_DATA_BUF_ALIGNMENT);
 292
 293         if (skb == NULL)
 294                 return NULL;
 295
 296         /* We need the data buffer to be aligned properly.  We will reserve
 297          * as many bytes as needed to align the data properly
 298          */
 299         skb_reserve(skb,
 300                     UCC_GETH_RX_DATA_BUF_ALIGNMENT -
 301                     (((unsigned)skb->data) & (UCC_GETH_RX_DATA_BUF_ALIGNMENT -
 302                                               1)));
 303
 304         skb->dev = ugeth->dev;
 305
 306         BD_BUFFER_SET(bd,
 307                       dma_map_single(NULL,
 308                                      skb->data,
 309                                      ugeth->ug_info->uf_info.max_rx_buf_length +
 310                                      UCC_GETH_RX_DATA_BUF_ALIGNMENT,
 311                                      DMA_FROM_DEVICE));
 312
 313         BD_STATUS_AND_LENGTH_SET(bd,
 314                                  (R_E | R_I |
 315                                   (BD_STATUS_AND_LENGTH(bd) & R_W)));
 316
 317         return skb;
 318 }
 319
 320 static int rx_bd_buffer_set(ucc_geth_private_t *ugeth, u8 rxQ)
 321 {
 322         u8 *bd;
 323         u32 bd_status;
 324         struct sk_buff *skb;
 325         int i;
 326
 327         bd = ugeth->p_rx_bd_ring[rxQ];
 328         i = 0;
 329
 330         do {
 331                 bd_status = BD_STATUS_AND_LENGTH(bd);
 332                 skb = get_new_skb(ugeth, bd);
 333
 334                 if (!skb)       /* If can not allocate data buffer,
 335                                 abort. Cleanup will be elsewhere */
 336                         return -ENOMEM;
 337
 338                 ugeth->rx_skbuff[rxQ][i] = skb;
 339
 340                 /* advance the BD pointer */
 341                 bd += UCC_GETH_SIZE_OF_BD;
 342                 i++;
 343         } while (!(bd_status & R_W));
 344
 345         return 0;
 346 }
 347
 348 static int fill_init_enet_entries(ucc_geth_private_t *ugeth,
 349                                   volatile u32 *p_start,
 350                                   u8 num_entries,
 351                                   u32 thread_size,
 352                                   u32 thread_alignment,
 353                                   qe_risc_allocation_e risc,
 354                                   int skip_page_for_first_entry)
 355 {
 356         u32 init_enet_offset;
 357         u8 i;
 358         int snum;
 359
 360         for (i = 0; i < num_entries; i++) {
 361                 if ((snum = qe_get_snum()) < 0) {
 362                         ugeth_err("fill_init_enet_entries: Can not get SNUM.");
 363                         return snum;
 364                 }
 365                 if ((i == 0) && skip_page_for_first_entry)
 366                 /* First entry of Rx does not have page */
 367                         init_enet_offset = 0;
 368                 else {
 369                         init_enet_offset =
 370                             qe_muram_alloc(thread_size, thread_alignment);
 371                         if (IS_MURAM_ERR(init_enet_offset)) {
 372                                 ugeth_err
 373                 ("fill_init_enet_entries: Can not allocate DPRAM memory.");
 374                                 qe_put_snum((u8) snum);
 375                                 return -ENOMEM;
 376                         }
 377                 }
 378                 *(p_start++) =
 379                     ((u8) snum << ENET_INIT_PARAM_SNUM_SHIFT) | init_enet_offset
 380                     | risc;
 381         }
 382
 383         return 0;
 384 }
 385
 386 static int return_init_enet_entries(ucc_geth_private_t *ugeth,
 387                                     volatile u32 *p_start,
 388                                     u8 num_entries,
 389                                     qe_risc_allocation_e risc,
 390                                     int skip_page_for_first_entry)
 391 {
 392         u32 init_enet_offset;
 393         u8 i;
 394         int snum;
 395
 396         for (i = 0; i < num_entries; i++) {
 397                 /* Check that this entry was actually valid --
 398                 needed in case failed in allocations */
 399                 if ((*p_start & ENET_INIT_PARAM_RISC_MASK) == risc) {
 400                         snum =
 401                             (u32) (*p_start & ENET_INIT_PARAM_SNUM_MASK) >>
 402                             ENET_INIT_PARAM_SNUM_SHIFT;
 403                         qe_put_snum((u8) snum);
 404                         if (!((i == 0) && skip_page_for_first_entry)) {
 405                         /* First entry of Rx does not have page */
 406                                 init_enet_offset =
 407                                     (in_be32(p_start) &
 408                                      ENET_INIT_PARAM_PTR_MASK);
 409                                 qe_muram_free(init_enet_offset);
 410                         }
 411                         *(p_start++) = 0;       /* Just for cosmetics */
 412                 }
 413         }
 414
 415         return 0;
 416 }
 417
 418 #ifdef DEBUG
 419 static int dump_init_enet_entries(ucc_geth_private_t *ugeth,
 420                                   volatile u32 *p_start,
 421                                   u8 num_entries,
 422                                   u32 thread_size,
 423                                   qe_risc_allocation_e risc,
 424                                   int skip_page_for_first_entry)
 425 {
 426         u32 init_enet_offset;
 427         u8 i;
 428         int snum;
 429
 430         for (i = 0; i < num_entries; i++) {
 431                 /* Check that this entry was actually valid --
 432                 needed in case failed in allocations */
 433                 if ((*p_start & ENET_INIT_PARAM_RISC_MASK) == risc) {
 434                         snum =
 435                             (u32) (*p_start & ENET_INIT_PARAM_SNUM_MASK) >>
 436                             ENET_INIT_PARAM_SNUM_SHIFT;
 437                         qe_put_snum((u8) snum);
 438                         if (!((i == 0) && skip_page_for_first_entry)) {
 439                         /* First entry of Rx does not have page */
 440                                 init_enet_offset =
 441                                     (in_be32(p_start) &
 442                                      ENET_INIT_PARAM_PTR_MASK);
 443                                 ugeth_info("Init enet entry %d:", i);
 444                                 ugeth_info("Base address: 0x%08x",
 445                                            (u32)
 446                                            qe_muram_addr(init_enet_offset));
 447                                 mem_disp(qe_muram_addr(init_enet_offset),
 448                                          thread_size);
 449                         }
 450                         p_start++;
 451                 }
 452         }
 453
 454         return 0;
 455 }
 456 #endif
 457
 458 #ifdef CONFIG_UGETH_FILTERING
 459 static enet_addr_container_t *get_enet_addr_container(void)
 460 {
 461         enet_addr_container_t *enet_addr_cont;
 462
 463         /* allocate memory */
 464         enet_addr_cont = kmalloc(sizeof(enet_addr_container_t), GFP_KERNEL);
 465         if (!enet_addr_cont) {
 466                 ugeth_err("%s: No memory for enet_addr_container_t object.",
 467                           __FUNCTION__);
 468                 return NULL;
 469         }
 470
 471         return enet_addr_cont;
 472 }
 473 #endif /* CONFIG_UGETH_FILTERING */
 474
 475 static void put_enet_addr_container(enet_addr_container_t *enet_addr_cont)
 476 {
 477         kfree(enet_addr_cont);
 478 }
 479
 480 #ifdef CONFIG_UGETH_FILTERING
 481 static int hw_add_addr_in_paddr(ucc_geth_private_t *ugeth,
 482                                 enet_addr_t *p_enet_addr, u8 paddr_num)
 483 {
 484         ucc_geth_82xx_address_filtering_pram_t *p_82xx_addr_filt;
 485
 486         if (!(paddr_num < NUM_OF_PADDRS)) {
 487                 ugeth_warn("%s: Illagel paddr_num.", __FUNCTION__);
 488                 return -EINVAL;
 489         }
 490
 491         p_82xx_addr_filt =
 492             (ucc_geth_82xx_address_filtering_pram_t *) ugeth->p_rx_glbl_pram->
 493             addressfiltering;
 494
 495         /* Ethernet frames are defined in Little Endian mode,    */
 496         /* therefore to insert the address we reverse the bytes. */
 497         out_be16(&p_82xx_addr_filt->paddr[paddr_num].h,
 498                  (u16) (((u16) (((u16) ((*p_enet_addr)[5])) << 8)) |
 499                         (u16) (*p_enet_addr)[4]));
 500         out_be16(&p_82xx_addr_filt->paddr[paddr_num].m,
 501                  (u16) (((u16) (((u16) ((*p_enet_addr)[3])) << 8)) |
 502                         (u16) (*p_enet_addr)[2]));
 503         out_be16(&p_82xx_addr_filt->paddr[paddr_num].l,
 504                  (u16) (((u16) (((u16) ((*p_enet_addr)[1])) << 8)) |
 505                         (u16) (*p_enet_addr)[0]));
 506
 507         return 0;
 508 }
 509 #endif /* CONFIG_UGETH_FILTERING */
 510
 511 static int hw_clear_addr_in_paddr(ucc_geth_private_t *ugeth, u8 paddr_num)
 512 {
 513         ucc_geth_82xx_address_filtering_pram_t *p_82xx_addr_filt;
 514
 515         if (!(paddr_num < NUM_OF_PADDRS)) {
 516                 ugeth_warn("%s: Illagel paddr_num.", __FUNCTION__);
 517                 return -EINVAL;
 518         }
 519
 520         p_82xx_addr_filt =
 521             (ucc_geth_82xx_address_filtering_pram_t *) ugeth->p_rx_glbl_pram->
 522             addressfiltering;
 523
 524         /* Writing address ff.ff.ff.ff.ff.ff disables address
 525         recognition for this register */
 526         out_be16(&p_82xx_addr_filt->paddr[paddr_num].h, 0xffff);
 527         out_be16(&p_82xx_addr_filt->paddr[paddr_num].m, 0xffff);
 528         out_be16(&p_82xx_addr_filt->paddr[paddr_num].l, 0xffff);
 529
 530         return 0;
 531 }
 532
 533 static void hw_add_addr_in_hash(ucc_geth_private_t *ugeth,
 534                                 enet_addr_t *p_enet_addr)
 535 {
 536         ucc_geth_82xx_address_filtering_pram_t *p_82xx_addr_filt;
 537         u32 cecr_subblock;
 538
 539         p_82xx_addr_filt =
 540             (ucc_geth_82xx_address_filtering_pram_t *) ugeth->p_rx_glbl_pram->
 541             addressfiltering;
 542
 543         cecr_subblock =
 544             ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
 545
 546         /* Ethernet frames are defined in Little Endian mode,
 547         therefor to insert */
 548         /* the address to the hash (Big Endian mode), we reverse the bytes.*/
 549         out_be16(&p_82xx_addr_filt->taddr.h,
 550                  (u16) (((u16) (((u16) ((*p_enet_addr)[5])) << 8)) |
 551                         (u16) (*p_enet_addr)[4]));
 552         out_be16(&p_82xx_addr_filt->taddr.m,
 553                  (u16) (((u16) (((u16) ((*p_enet_addr)[3])) << 8)) |
 554                         (u16) (*p_enet_addr)[2]));
 555         out_be16(&p_82xx_addr_filt->taddr.l,
 556                  (u16) (((u16) (((u16) ((*p_enet_addr)[1])) << 8)) |
 557                         (u16) (*p_enet_addr)[0]));
 558
 559         qe_issue_cmd(QE_SET_GROUP_ADDRESS, cecr_subblock,
 560                      (u8) QE_CR_PROTOCOL_ETHERNET, 0);
 561 }
 562
 563 #ifdef CONFIG_UGETH_MAGIC_PACKET
 564 static void magic_packet_detection_enable(ucc_geth_private_t *ugeth)
 565 {
 566         ucc_fast_private_t *uccf;
 567         ucc_geth_t *ug_regs;
 568         u32 maccfg2, uccm;
 569
 570         uccf = ugeth->uccf;
 571         ug_regs = ugeth->ug_regs;
 572
 573         /* Enable interrupts for magic packet detection */
 574         uccm = in_be32(uccf->p_uccm);
 575         uccm |= UCCE_MPD;
 576         out_be32(uccf->p_uccm, uccm);
 577
 578         /* Enable magic packet detection */
 579         maccfg2 = in_be32(&ug_regs->maccfg2);
 580         maccfg2 |= MACCFG2_MPE;
 581         out_be32(&ug_regs->maccfg2, maccfg2);
 582 }
 583
 584 static void magic_packet_detection_disable(ucc_geth_private_t *ugeth)
 585 {
 586         ucc_fast_private_t *uccf;
 587         ucc_geth_t *ug_regs;
 588         u32 maccfg2, uccm;
 589
 590         uccf = ugeth->uccf;
 591         ug_regs = ugeth->ug_regs;
 592
 593         /* Disable interrupts for magic packet detection */
 594         uccm = in_be32(uccf->p_uccm);
 595         uccm &= ~UCCE_MPD;
 596         out_be32(uccf->p_uccm, uccm);
 597
 598         /* Disable magic packet detection */
 599         maccfg2 = in_be32(&ug_regs->maccfg2);
 600         maccfg2 &= ~MACCFG2_MPE;
 601         out_be32(&ug_regs->maccfg2, maccfg2);
 602 }
 603 #endif /* MAGIC_PACKET */
 604
 605 static inline int compare_addr(enet_addr_t *addr1, enet_addr_t *addr2)
 606 {
 607         return memcmp(addr1, addr2, ENET_NUM_OCTETS_PER_ADDRESS);
 608 }
 609
 610 #ifdef DEBUG
 611 static void get_statistics(ucc_geth_private_t *ugeth,
 612                            ucc_geth_tx_firmware_statistics_t *
 613                            tx_firmware_statistics,
 614                            ucc_geth_rx_firmware_statistics_t *
 615                            rx_firmware_statistics,
 616                            ucc_geth_hardware_statistics_t *hardware_statistics)
 617 {
 618         ucc_fast_t *uf_regs;
 619         ucc_geth_t *ug_regs;
 620         ucc_geth_tx_firmware_statistics_pram_t *p_tx_fw_statistics_pram;
 621         ucc_geth_rx_firmware_statistics_pram_t *p_rx_fw_statistics_pram;
 622
 623         ug_regs = ugeth->ug_regs;
 624         uf_regs = (ucc_fast_t *) ug_regs;
 625         p_tx_fw_statistics_pram = ugeth->p_tx_fw_statistics_pram;
 626         p_rx_fw_statistics_pram = ugeth->p_rx_fw_statistics_pram;
 627
 628         /* Tx firmware only if user handed pointer and driver actually
 629         gathers Tx firmware statistics */
 630         if (tx_firmware_statistics && p_tx_fw_statistics_pram) {
 631                 tx_firmware_statistics->sicoltx =
 632                     in_be32(&p_tx_fw_statistics_pram->sicoltx);
 633                 tx_firmware_statistics->mulcoltx =
 634                     in_be32(&p_tx_fw_statistics_pram->mulcoltx);
 635                 tx_firmware_statistics->latecoltxfr =
 636                     in_be32(&p_tx_fw_statistics_pram->latecoltxfr);
 637                 tx_firmware_statistics->frabortduecol =
 638                     in_be32(&p_tx_fw_statistics_pram->frabortduecol);
 639                 tx_firmware_statistics->frlostinmactxer =
 640                     in_be32(&p_tx_fw_statistics_pram->frlostinmactxer);
 641                 tx_firmware_statistics->carriersenseertx =
 642                     in_be32(&p_tx_fw_statistics_pram->carriersenseertx);
 643                 tx_firmware_statistics->frtxok =
 644                     in_be32(&p_tx_fw_statistics_pram->frtxok);
 645                 tx_firmware_statistics->txfrexcessivedefer =
 646                     in_be32(&p_tx_fw_statistics_pram->txfrexcessivedefer);
 647                 tx_firmware_statistics->txpkts256 =
 648                     in_be32(&p_tx_fw_statistics_pram->txpkts256);
 649                 tx_firmware_statistics->txpkts512 =
 650                     in_be32(&p_tx_fw_statistics_pram->txpkts512);
 651                 tx_firmware_statistics->txpkts1024 =
 652                     in_be32(&p_tx_fw_statistics_pram->txpkts1024);
 653                 tx_firmware_statistics->txpktsjumbo =
 654                     in_be32(&p_tx_fw_statistics_pram->txpktsjumbo);
 655         }
 656
 657         /* Rx firmware only if user handed pointer and driver actually
 658          * gathers Rx firmware statistics */
 659         if (rx_firmware_statistics && p_rx_fw_statistics_pram) {
 660                 int i;
 661                 rx_firmware_statistics->frrxfcser =
 662                     in_be32(&p_rx_fw_statistics_pram->frrxfcser);
 663                 rx_firmware_statistics->fraligner =
 664                     in_be32(&p_rx_fw_statistics_pram->fraligner);
 665                 rx_firmware_statistics->inrangelenrxer =
 666                     in_be32(&p_rx_fw_statistics_pram->inrangelenrxer);
 667                 rx_firmware_statistics->outrangelenrxer =
 668                     in_be32(&p_rx_fw_statistics_pram->outrangelenrxer);
 669                 rx_firmware_statistics->frtoolong =
 670                     in_be32(&p_rx_fw_statistics_pram->frtoolong);
 671                 rx_firmware_statistics->runt =
 672                     in_be32(&p_rx_fw_statistics_pram->runt);
 673                 rx_firmware_statistics->verylongevent =
 674                     in_be32(&p_rx_fw_statistics_pram->verylongevent);
 675                 rx_firmware_statistics->symbolerror =
 676                     in_be32(&p_rx_fw_statistics_pram->symbolerror);
 677                 rx_firmware_statistics->dropbsy =
 678                     in_be32(&p_rx_fw_statistics_pram->dropbsy);
 679                 for (i = 0; i < 0x8; i++)
 680                         rx_firmware_statistics->res0[i] =
 681                             p_rx_fw_statistics_pram->res0[i];
 682                 rx_firmware_statistics->mismatchdrop =
 683                     in_be32(&p_rx_fw_statistics_pram->mismatchdrop);
 684                 rx_firmware_statistics->underpkts =
 685                     in_be32(&p_rx_fw_statistics_pram->underpkts);
 686                 rx_firmware_statistics->pkts256 =
 687                     in_be32(&p_rx_fw_statistics_pram->pkts256);
 688                 rx_firmware_statistics->pkts512 =
 689                     in_be32(&p_rx_fw_statistics_pram->pkts512);
 690                 rx_firmware_statistics->pkts1024 =
 691                     in_be32(&p_rx_fw_statistics_pram->pkts1024);
 692                 rx_firmware_statistics->pktsjumbo =
 693                     in_be32(&p_rx_fw_statistics_pram->pktsjumbo);
 694                 rx_firmware_statistics->frlossinmacer =
 695                     in_be32(&p_rx_fw_statistics_pram->frlossinmacer);
 696                 rx_firmware_statistics->pausefr =
 697                     in_be32(&p_rx_fw_statistics_pram->pausefr);
 698                 for (i = 0; i < 0x4; i++)
 699                         rx_firmware_statistics->res1[i] =
 700                             p_rx_fw_statistics_pram->res1[i];
 701                 rx_firmware_statistics->removevlan =
 702                     in_be32(&p_rx_fw_statistics_pram->removevlan);
 703                 rx_firmware_statistics->replacevlan =
 704                     in_be32(&p_rx_fw_statistics_pram->replacevlan);
 705                 rx_firmware_statistics->insertvlan =
 706                     in_be32(&p_rx_fw_statistics_pram->insertvlan);
 707         }
 708
 709         /* Hardware only if user handed pointer and driver actually
 710         gathers hardware statistics */
 711         if (hardware_statistics && (in_be32(&uf_regs->upsmr) & UPSMR_HSE)) {
 712                 hardware_statistics->tx64 = in_be32(&ug_regs->tx64);
 713                 hardware_statistics->tx127 = in_be32(&ug_regs->tx127);
 714                 hardware_statistics->tx255 = in_be32(&ug_regs->tx255);
 715                 hardware_statistics->rx64 = in_be32(&ug_regs->rx64);
 716                 hardware_statistics->rx127 = in_be32(&ug_regs->rx127);
 717                 hardware_statistics->rx255 = in_be32(&ug_regs->rx255);
 718                 hardware_statistics->txok = in_be32(&ug_regs->txok);
 719                 hardware_statistics->txcf = in_be16(&ug_regs->txcf);
 720                 hardware_statistics->tmca = in_be32(&ug_regs->tmca);
 721                 hardware_statistics->tbca = in_be32(&ug_regs->tbca);
 722                 hardware_statistics->rxfok = in_be32(&ug_regs->rxfok);
 723                 hardware_statistics->rxbok = in_be32(&ug_regs->rxbok);
 724                 hardware_statistics->rbyt = in_be32(&ug_regs->rbyt);
 725                 hardware_statistics->rmca = in_be32(&ug_regs->rmca);
 726                 hardware_statistics->rbca = in_be32(&ug_regs->rbca);
 727         }
 728 }
 729
 730 static void dump_bds(ucc_geth_private_t *ugeth)
 731 {
 732         int i;
 733         int length;
 734
 735         for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) {
 736                 if (ugeth->p_tx_bd_ring[i]) {
 737                         length =
 738                             (ugeth->ug_info->bdRingLenTx[i] *
 739                              UCC_GETH_SIZE_OF_BD);
 740                         ugeth_info("TX BDs[%d]", i);
 741                         mem_disp(ugeth->p_tx_bd_ring[i], length);
 742                 }
 743         }
 744         for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
 745                 if (ugeth->p_rx_bd_ring[i]) {
 746                         length =
 747                             (ugeth->ug_info->bdRingLenRx[i] *
 748                              UCC_GETH_SIZE_OF_BD);
 749                         ugeth_info("RX BDs[%d]", i);
 750                         mem_disp(ugeth->p_rx_bd_ring[i], length);
 751                 }
 752         }
 753 }
 754
 755 static void dump_regs(ucc_geth_private_t *ugeth)
 756 {
 757         int i;
 758
 759         ugeth_info("UCC%d Geth registers:", ugeth->ug_info->uf_info.ucc_num);
 760         ugeth_info("Base address: 0x%08x", (u32) ugeth->ug_regs);
 761
 762         ugeth_info("maccfg1    : addr - 0x%08x, val - 0x%08x",
 763                    (u32) & ugeth->ug_regs->maccfg1,
 764                    in_be32(&ugeth->ug_regs->maccfg1));
 765         ugeth_info("maccfg2    : addr - 0x%08x, val - 0x%08x",
 766                    (u32) & ugeth->ug_regs->maccfg2,
 767                    in_be32(&ugeth->ug_regs->maccfg2));
 768         ugeth_info("ipgifg     : addr - 0x%08x, val - 0x%08x",
 769                    (u32) & ugeth->ug_regs->ipgifg,
 770                    in_be32(&ugeth->ug_regs->ipgifg));
 771         ugeth_info("hafdup     : addr - 0x%08x, val - 0x%08x",
 772                    (u32) & ugeth->ug_regs->hafdup,
 773                    in_be32(&ugeth->ug_regs->hafdup));
 774         ugeth_info("miimcfg    : addr - 0x%08x, val - 0x%08x",
 775                    (u32) & ugeth->ug_regs->miimng.miimcfg,
 776                    in_be32(&ugeth->ug_regs->miimng.miimcfg));
 777         ugeth_info("miimcom    : addr - 0x%08x, val - 0x%08x",
 778                    (u32) & ugeth->ug_regs->miimng.miimcom,
 779                    in_be32(&ugeth->ug_regs->miimng.miimcom));
 780         ugeth_info("miimadd    : addr - 0x%08x, val - 0x%08x",
 781                    (u32) & ugeth->ug_regs->miimng.miimadd,
 782                    in_be32(&ugeth->ug_regs->miimng.miimadd));
 783         ugeth_info("miimcon    : addr - 0x%08x, val - 0x%08x",
 784                    (u32) & ugeth->ug_regs->miimng.miimcon,
 785                    in_be32(&ugeth->ug_regs->miimng.miimcon));
 786         ugeth_info("miimstat   : addr - 0x%08x, val - 0x%08x",
 787                    (u32) & ugeth->ug_regs->miimng.miimstat,
 788                    in_be32(&ugeth->ug_regs->miimng.miimstat));
 789         ugeth_info("miimmind   : addr - 0x%08x, val - 0x%08x",
 790                    (u32) & ugeth->ug_regs->miimng.miimind,
 791                    in_be32(&ugeth->ug_regs->miimng.miimind));
 792         ugeth_info("ifctl      : addr - 0x%08x, val - 0x%08x",
 793                    (u32) & ugeth->ug_regs->ifctl,
 794                    in_be32(&ugeth->ug_regs->ifctl));
 795         ugeth_info("ifstat     : addr - 0x%08x, val - 0x%08x",
 796                    (u32) & ugeth->ug_regs->ifstat,
 797                    in_be32(&ugeth->ug_regs->ifstat));
 798         ugeth_info("macstnaddr1: addr - 0x%08x, val - 0x%08x",
 799                    (u32) & ugeth->ug_regs->macstnaddr1,
 800                    in_be32(&ugeth->ug_regs->macstnaddr1));
 801         ugeth_info("macstnaddr2: addr - 0x%08x, val - 0x%08x",
 802                    (u32) & ugeth->ug_regs->macstnaddr2,
 803                    in_be32(&ugeth->ug_regs->macstnaddr2));
 804         ugeth_info("uempr      : addr - 0x%08x, val - 0x%08x",
 805                    (u32) & ugeth->ug_regs->uempr,
 806                    in_be32(&ugeth->ug_regs->uempr));
 807         ugeth_info("utbipar    : addr - 0x%08x, val - 0x%08x",
 808                    (u32) & ugeth->ug_regs->utbipar,
 809                    in_be32(&ugeth->ug_regs->utbipar));
 810         ugeth_info("uescr      : addr - 0x%08x, val - 0x%04x",
 811                    (u32) & ugeth->ug_regs->uescr,
 812                    in_be16(&ugeth->ug_regs->uescr));
 813         ugeth_info("tx64       : addr - 0x%08x, val - 0x%08x",
 814                    (u32) & ugeth->ug_regs->tx64,
 815                    in_be32(&ugeth->ug_regs->tx64));
 816         ugeth_info("tx127      : addr - 0x%08x, val - 0x%08x",
 817                    (u32) & ugeth->ug_regs->tx127,
 818                    in_be32(&ugeth->ug_regs->tx127));
 819         ugeth_info("tx255      : addr - 0x%08x, val - 0x%08x",
 820                    (u32) & ugeth->ug_regs->tx255,
 821                    in_be32(&ugeth->ug_regs->tx255));
 822         ugeth_info("rx64       : addr - 0x%08x, val - 0x%08x",
 823                    (u32) & ugeth->ug_regs->rx64,
 824                    in_be32(&ugeth->ug_regs->rx64));
 825         ugeth_info("rx127      : addr - 0x%08x, val - 0x%08x",
 826                    (u32) & ugeth->ug_regs->rx127,
 827                    in_be32(&ugeth->ug_regs->rx127));
 828         ugeth_info("rx255      : addr - 0x%08x, val - 0x%08x",
 829                    (u32) & ugeth->ug_regs->rx255,
 830                    in_be32(&ugeth->ug_regs->rx255));
 831         ugeth_info("txok       : addr - 0x%08x, val - 0x%08x",
 832                    (u32) & ugeth->ug_regs->txok,
 833                    in_be32(&ugeth->ug_regs->txok));
 834         ugeth_info("txcf       : addr - 0x%08x, val - 0x%04x",
 835                    (u32) & ugeth->ug_regs->txcf,
 836                    in_be16(&ugeth->ug_regs->txcf));
 837         ugeth_info("tmca       : addr - 0x%08x, val - 0x%08x",
 838                    (u32) & ugeth->ug_regs->tmca,
 839                    in_be32(&ugeth->ug_regs->tmca));
 840         ugeth_info("tbca       : addr - 0x%08x, val - 0x%08x",
 841                    (u32) & ugeth->ug_regs->tbca,
 842                    in_be32(&ugeth->ug_regs->tbca));
 843         ugeth_info("rxfok      : addr - 0x%08x, val - 0x%08x",
 844                    (u32) & ugeth->ug_regs->rxfok,
 845                    in_be32(&ugeth->ug_regs->rxfok));
 846         ugeth_info("rxbok      : addr - 0x%08x, val - 0x%08x",
 847                    (u32) & ugeth->ug_regs->rxbok,
 848                    in_be32(&ugeth->ug_regs->rxbok));
 849         ugeth_info("rbyt       : addr - 0x%08x, val - 0x%08x",
 850                    (u32) & ugeth->ug_regs->rbyt,
 851                    in_be32(&ugeth->ug_regs->rbyt));
 852         ugeth_info("rmca       : addr - 0x%08x, val - 0x%08x",
 853                    (u32) & ugeth->ug_regs->rmca,
 854                    in_be32(&ugeth->ug_regs->rmca));
 855         ugeth_info("rbca       : addr - 0x%08x, val - 0x%08x",
 856                    (u32) & ugeth->ug_regs->rbca,
 857                    in_be32(&ugeth->ug_regs->rbca));
 858         ugeth_info("scar       : addr - 0x%08x, val - 0x%08x",
 859                    (u32) & ugeth->ug_regs->scar,
 860                    in_be32(&ugeth->ug_regs->scar));
 861         ugeth_info("scam       : addr - 0x%08x, val - 0x%08x",
 862                    (u32) & ugeth->ug_regs->scam,
 863                    in_be32(&ugeth->ug_regs->scam));
 864
 865         if (ugeth->p_thread_data_tx) {
 866                 int numThreadsTxNumerical;
 867                 switch (ugeth->ug_info->numThreadsTx) {
 868                 case UCC_GETH_NUM_OF_THREADS_1:
 869                         numThreadsTxNumerical = 1;
 870                         break;
 871                 case UCC_GETH_NUM_OF_THREADS_2:
 872                         numThreadsTxNumerical = 2;
 873                         break;
 874                 case UCC_GETH_NUM_OF_THREADS_4:
 875                         numThreadsTxNumerical = 4;
 876                         break;
 877                 case UCC_GETH_NUM_OF_THREADS_6:
 878                         numThreadsTxNumerical = 6;
 879                         break;
 880                 case UCC_GETH_NUM_OF_THREADS_8:
 881                         numThreadsTxNumerical = 8;
 882                         break;
 883                 default:
 884                         numThreadsTxNumerical = 0;
 885                         break;
 886                 }
 887
 888                 ugeth_info("Thread data TXs:");
 889                 ugeth_info("Base address: 0x%08x",
 890                            (u32) ugeth->p_thread_data_tx);
 891                 for (i = 0; i < numThreadsTxNumerical; i++) {
 892                         ugeth_info("Thread data TX[%d]:", i);
 893                         ugeth_info("Base address: 0x%08x",
 894                                    (u32) & ugeth->p_thread_data_tx[i]);
 895                         mem_disp((u8 *) & ugeth->p_thread_data_tx[i],
 896                                  sizeof(ucc_geth_thread_data_tx_t));
 897                 }
 898         }
 899         if (ugeth->p_thread_data_rx) {
 900                 int numThreadsRxNumerical;
 901                 switch (ugeth->ug_info->numThreadsRx) {
 902                 case UCC_GETH_NUM_OF_THREADS_1:
 903                         numThreadsRxNumerical = 1;
 904                         break;
 905                 case UCC_GETH_NUM_OF_THREADS_2:
 906                         numThreadsRxNumerical = 2;
 907                         break;
 908                 case UCC_GETH_NUM_OF_THREADS_4:
 909                         numThreadsRxNumerical = 4;
 910                         break;
 911                 case UCC_GETH_NUM_OF_THREADS_6:
 912                         numThreadsRxNumerical = 6;
 913                         break;
 914                 case UCC_GETH_NUM_OF_THREADS_8:
 915                         numThreadsRxNumerical = 8;
 916                         break;
 917                 default:
 918                         numThreadsRxNumerical = 0;
 919                         break;
 920                 }
 921
 922                 ugeth_info("Thread data RX:");
 923                 ugeth_info("Base address: 0x%08x",
 924                            (u32) ugeth->p_thread_data_rx);
 925                 for (i = 0; i < numThreadsRxNumerical; i++) {
 926                         ugeth_info("Thread data RX[%d]:", i);
 927                         ugeth_info("Base address: 0x%08x",
 928                                    (u32) & ugeth->p_thread_data_rx[i]);
 929                         mem_disp((u8 *) & ugeth->p_thread_data_rx[i],
 930                                  sizeof(ucc_geth_thread_data_rx_t));
 931                 }
 932         }
 933         if (ugeth->p_exf_glbl_param) {
 934                 ugeth_info("EXF global param:");
 935                 ugeth_info("Base address: 0x%08x",
 936                            (u32) ugeth->p_exf_glbl_param);
 937                 mem_disp((u8 *) ugeth->p_exf_glbl_param,
 938                          sizeof(*ugeth->p_exf_glbl_param));
 939         }
 940         if (ugeth->p_tx_glbl_pram) {
 941                 ugeth_info("TX global param:");
 942                 ugeth_info("Base address: 0x%08x", (u32) ugeth->p_tx_glbl_pram);
 943                 ugeth_info("temoder      : addr - 0x%08x, val - 0x%04x",
 944                            (u32) & ugeth->p_tx_glbl_pram->temoder,
 945                            in_be16(&ugeth->p_tx_glbl_pram->temoder));
 946                 ugeth_info("sqptr        : addr - 0x%08x, val - 0x%08x",
 947                            (u32) & ugeth->p_tx_glbl_pram->sqptr,
 948                            in_be32(&ugeth->p_tx_glbl_pram->sqptr));
 949                 ugeth_info("schedulerbasepointer: addr - 0x%08x, val - 0x%08x",
 950                            (u32) & ugeth->p_tx_glbl_pram->schedulerbasepointer,
 951                            in_be32(&ugeth->p_tx_glbl_pram->
 952                                    schedulerbasepointer));
 953                 ugeth_info("txrmonbaseptr: addr - 0x%08x, val - 0x%08x",
 954                            (u32) & ugeth->p_tx_glbl_pram->txrmonbaseptr,
 955                            in_be32(&ugeth->p_tx_glbl_pram->txrmonbaseptr));
 956                 ugeth_info("tstate       : addr - 0x%08x, val - 0x%08x",
 957                            (u32) & ugeth->p_tx_glbl_pram->tstate,
 958                            in_be32(&ugeth->p_tx_glbl_pram->tstate));
 959                 ugeth_info("iphoffset[0] : addr - 0x%08x, val - 0x%02x",
 960                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[0],
 961                            ugeth->p_tx_glbl_pram->iphoffset[0]);
 962                 ugeth_info("iphoffset[1] : addr - 0x%08x, val - 0x%02x",
 963                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[1],
 964                            ugeth->p_tx_glbl_pram->iphoffset[1]);
 965                 ugeth_info("iphoffset[2] : addr - 0x%08x, val - 0x%02x",
 966                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[2],
 967                            ugeth->p_tx_glbl_pram->iphoffset[2]);
 968                 ugeth_info("iphoffset[3] : addr - 0x%08x, val - 0x%02x",
 969                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[3],
 970                            ugeth->p_tx_glbl_pram->iphoffset[3]);
 971                 ugeth_info("iphoffset[4] : addr - 0x%08x, val - 0x%02x",
 972                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[4],
 973                            ugeth->p_tx_glbl_pram->iphoffset[4]);
 974                 ugeth_info("iphoffset[5] : addr - 0x%08x, val - 0x%02x",
 975                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[5],
 976                            ugeth->p_tx_glbl_pram->iphoffset[5]);
 977                 ugeth_info("iphoffset[6] : addr - 0x%08x, val - 0x%02x",
 978                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[6],
 979                            ugeth->p_tx_glbl_pram->iphoffset[6]);
 980                 ugeth_info("iphoffset[7] : addr - 0x%08x, val - 0x%02x",
 981                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[7],
 982                            ugeth->p_tx_glbl_pram->iphoffset[7]);
 983                 ugeth_info("vtagtable[0] : addr - 0x%08x, val - 0x%08x",
 984                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[0],
 985                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[0]));
 986                 ugeth_info("vtagtable[1] : addr - 0x%08x, val - 0x%08x",
 987                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[1],
 988                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[1]));
 989                 ugeth_info("vtagtable[2] : addr - 0x%08x, val - 0x%08x",
 990                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[2],
 991                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[2]));
 992                 ugeth_info("vtagtable[3] : addr - 0x%08x, val - 0x%08x",
 993                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[3],
 994                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[3]));
 995                 ugeth_info("vtagtable[4] : addr - 0x%08x, val - 0x%08x",
 996                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[4],
 997                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[4]));
 998                 ugeth_info("vtagtable[5] : addr - 0x%08x, val - 0x%08x",
 999                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[5],
1000                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[5]));
1001                 ugeth_info("vtagtable[6] : addr - 0x%08x, val - 0x%08x",
1002                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[6],
1003                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[6]));
1004                 ugeth_info("vtagtable[7] : addr - 0x%08x, val - 0x%08x",
1005                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[7],
1006                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[7]));
1007                 ugeth_info("tqptr        : addr - 0x%08x, val - 0x%08x",
1008                            (u32) & ugeth->p_tx_glbl_pram->tqptr,
1009                            in_be32(&ugeth->p_tx_glbl_pram->tqptr));
1010         }
1011         if (ugeth->p_rx_glbl_pram) {
1012                 ugeth_info("RX global param:");
1013                 ugeth_info("Base address: 0x%08x", (u32) ugeth->p_rx_glbl_pram);
1014                 ugeth_info("remoder         : addr - 0x%08x, val - 0x%08x",
1015                            (u32) & ugeth->p_rx_glbl_pram->remoder,
1016                            in_be32(&ugeth->p_rx_glbl_pram->remoder));
1017                 ugeth_info("rqptr           : addr - 0x%08x, val - 0x%08x",
1018                            (u32) & ugeth->p_rx_glbl_pram->rqptr,
1019                            in_be32(&ugeth->p_rx_glbl_pram->rqptr));
1020                 ugeth_info("typeorlen       : addr - 0x%08x, val - 0x%04x",
1021                            (u32) & ugeth->p_rx_glbl_pram->typeorlen,
1022                            in_be16(&ugeth->p_rx_glbl_pram->typeorlen));
1023                 ugeth_info("rxgstpack       : addr - 0x%08x, val - 0x%02x",
1024                            (u32) & ugeth->p_rx_glbl_pram->rxgstpack,
1025                            ugeth->p_rx_glbl_pram->rxgstpack);
1026                 ugeth_info("rxrmonbaseptr   : addr - 0x%08x, val - 0x%08x",
1027                            (u32) & ugeth->p_rx_glbl_pram->rxrmonbaseptr,
1028                            in_be32(&ugeth->p_rx_glbl_pram->rxrmonbaseptr));
1029                 ugeth_info("intcoalescingptr: addr - 0x%08x, val - 0x%08x",
1030                            (u32) & ugeth->p_rx_glbl_pram->intcoalescingptr,
1031                            in_be32(&ugeth->p_rx_glbl_pram->intcoalescingptr));
1032                 ugeth_info("rstate          : addr - 0x%08x, val - 0x%02x",
1033                            (u32) & ugeth->p_rx_glbl_pram->rstate,
1034                            ugeth->p_rx_glbl_pram->rstate);
1035                 ugeth_info("mrblr           : addr - 0x%08x, val - 0x%04x",
1036                            (u32) & ugeth->p_rx_glbl_pram->mrblr,
1037                            in_be16(&ugeth->p_rx_glbl_pram->mrblr));
1038                 ugeth_info("rbdqptr         : addr - 0x%08x, val - 0x%08x",
1039                            (u32) & ugeth->p_rx_glbl_pram->rbdqptr,
1040                            in_be32(&ugeth->p_rx_glbl_pram->rbdqptr));
1041                 ugeth_info("mflr            : addr - 0x%08x, val - 0x%04x",
1042                            (u32) & ugeth->p_rx_glbl_pram->mflr,
1043                            in_be16(&ugeth->p_rx_glbl_pram->mflr));
1044                 ugeth_info("minflr          : addr - 0x%08x, val - 0x%04x",
1045                            (u32) & ugeth->p_rx_glbl_pram->minflr,
1046                            in_be16(&ugeth->p_rx_glbl_pram->minflr));
1047                 ugeth_info("maxd1           : addr - 0x%08x, val - 0x%04x",
1048                            (u32) & ugeth->p_rx_glbl_pram->maxd1,
1049                            in_be16(&ugeth->p_rx_glbl_pram->maxd1));
1050                 ugeth_info("maxd2           : addr - 0x%08x, val - 0x%04x",
1051                            (u32) & ugeth->p_rx_glbl_pram->maxd2,
1052                            in_be16(&ugeth->p_rx_glbl_pram->maxd2));
1053                 ugeth_info("ecamptr         : addr - 0x%08x, val - 0x%08x",
1054                            (u32) & ugeth->p_rx_glbl_pram->ecamptr,
1055                            in_be32(&ugeth->p_rx_glbl_pram->ecamptr));
1056                 ugeth_info("l2qt            : addr - 0x%08x, val - 0x%08x",
1057                            (u32) & ugeth->p_rx_glbl_pram->l2qt,
1058                            in_be32(&ugeth->p_rx_glbl_pram->l2qt));
1059                 ugeth_info("l3qt[0]         : addr - 0x%08x, val - 0x%08x",
1060                            (u32) & ugeth->p_rx_glbl_pram->l3qt[0],
1061                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[0]));
1062                 ugeth_info("l3qt[1]         : addr - 0x%08x, val - 0x%08x",
1063                            (u32) & ugeth->p_rx_glbl_pram->l3qt[1],
1064                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[1]));
1065                 ugeth_info("l3qt[2]         : addr - 0x%08x, val - 0x%08x",
1066                            (u32) & ugeth->p_rx_glbl_pram->l3qt[2],
1067                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[2]));
1068                 ugeth_info("l3qt[3]         : addr - 0x%08x, val - 0x%08x",
1069                            (u32) & ugeth->p_rx_glbl_pram->l3qt[3],
1070                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[3]));
1071                 ugeth_info("l3qt[4]         : addr - 0x%08x, val - 0x%08x",
1072                            (u32) & ugeth->p_rx_glbl_pram->l3qt[4],
1073                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[4]));
1074                 ugeth_info("l3qt[5]         : addr - 0x%08x, val - 0x%08x",
1075                            (u32) & ugeth->p_rx_glbl_pram->l3qt[5],
1076                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[5]));
1077                 ugeth_info("l3qt[6]         : addr - 0x%08x, val - 0x%08x",
1078                            (u32) & ugeth->p_rx_glbl_pram->l3qt[6],
1079                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[6]));
1080                 ugeth_info("l3qt[7]         : addr - 0x%08x, val - 0x%08x",
1081                            (u32) & ugeth->p_rx_glbl_pram->l3qt[7],
1082                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[7]));
1083                 ugeth_info("vlantype        : addr - 0x%08x, val - 0x%04x",
1084                            (u32) & ugeth->p_rx_glbl_pram->vlantype,
1085                            in_be16(&ugeth->p_rx_glbl_pram->vlantype));
1086                 ugeth_info("vlantci         : addr - 0x%08x, val - 0x%04x",
1087                            (u32) & ugeth->p_rx_glbl_pram->vlantci,
1088                            in_be16(&ugeth->p_rx_glbl_pram->vlantci));
1089                 for (i = 0; i < 64; i++)
1090                         ugeth_info
1091                     ("addressfiltering[%d]: addr - 0x%08x, val - 0x%02x",
1092                              i,
1093                              (u32) & ugeth->p_rx_glbl_pram->addressfiltering[i],
1094                              ugeth->p_rx_glbl_pram->addressfiltering[i]);
1095                 ugeth_info("exfGlobalParam  : addr - 0x%08x, val - 0x%08x",
1096                            (u32) & ugeth->p_rx_glbl_pram->exfGlobalParam,
1097                            in_be32(&ugeth->p_rx_glbl_pram->exfGlobalParam));
1098         }
1099         if (ugeth->p_send_q_mem_reg) {
1100                 ugeth_info("Send Q memory registers:");
1101                 ugeth_info("Base address: 0x%08x",
1102                            (u32) ugeth->p_send_q_mem_reg);
1103                 for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) {
1104                         ugeth_info("SQQD[%d]:", i);
1105                         ugeth_info("Base address: 0x%08x",
1106                                    (u32) & ugeth->p_send_q_mem_reg->sqqd[i]);
1107                         mem_disp((u8 *) & ugeth->p_send_q_mem_reg->sqqd[i],
1108                                  sizeof(ucc_geth_send_queue_qd_t));
1109                 }
1110         }
1111         if (ugeth->p_scheduler) {
1112                 ugeth_info("Scheduler:");
1113                 ugeth_info("Base address: 0x%08x", (u32) ugeth->p_scheduler);
1114                 mem_disp((u8 *) ugeth->p_scheduler,
1115                          sizeof(*ugeth->p_scheduler));
1116         }
1117         if (ugeth->p_tx_fw_statistics_pram) {
1118                 ugeth_info("TX FW statistics pram:");
1119                 ugeth_info("Base address: 0x%08x",
1120                            (u32) ugeth->p_tx_fw_statistics_pram);
1121                 mem_disp((u8 *) ugeth->p_tx_fw_statistics_pram,
1122                          sizeof(*ugeth->p_tx_fw_statistics_pram));
1123         }
1124         if (ugeth->p_rx_fw_statistics_pram) {
1125                 ugeth_info("RX FW statistics pram:");
1126                 ugeth_info("Base address: 0x%08x",
1127                            (u32) ugeth->p_rx_fw_statistics_pram);
1128                 mem_disp((u8 *) ugeth->p_rx_fw_statistics_pram,
1129                          sizeof(*ugeth->p_rx_fw_statistics_pram));
1130         }
1131         if (ugeth->p_rx_irq_coalescing_tbl) {
1132                 ugeth_info("RX IRQ coalescing tables:");
1133                 ugeth_info("Base address: 0x%08x",
1134                            (u32) ugeth->p_rx_irq_coalescing_tbl);
1135                 for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
1136                         ugeth_info("RX IRQ coalescing table entry[%d]:", i);
1137                         ugeth_info("Base address: 0x%08x",
1138                                    (u32) & ugeth->p_rx_irq_coalescing_tbl->
1139                                    coalescingentry[i]);
1140                         ugeth_info
1141                 ("interruptcoalescingmaxvalue: addr - 0x%08x, val - 0x%08x",
1142                              (u32) & ugeth->p_rx_irq_coalescing_tbl->
1143                              coalescingentry[i].interruptcoalescingmaxvalue,
1144                              in_be32(&ugeth->p_rx_irq_coalescing_tbl->
1145                                      coalescingentry[i].
1146                                      interruptcoalescingmaxvalue));
1147                         ugeth_info
1148                 ("interruptcoalescingcounter : addr - 0x%08x, val - 0x%08x",
1149                              (u32) & ugeth->p_rx_irq_coalescing_tbl->
1150                              coalescingentry[i].interruptcoalescingcounter,
1151                              in_be32(&ugeth->p_rx_irq_coalescing_tbl->
1152                                      coalescingentry[i].
1153                                      interruptcoalescingcounter));
1154                 }
1155         }
1156         if (ugeth->p_rx_bd_qs_tbl) {
1157                 ugeth_info("RX BD QS tables:");
1158                 ugeth_info("Base address: 0x%08x", (u32) ugeth->p_rx_bd_qs_tbl);
1159                 for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
1160                         ugeth_info("RX BD QS table[%d]:", i);
1161                         ugeth_info("Base address: 0x%08x",
1162                                    (u32) & ugeth->p_rx_bd_qs_tbl[i]);
1163                         ugeth_info
1164                             ("bdbaseptr        : addr - 0x%08x, val - 0x%08x",
1165                              (u32) & ugeth->p_rx_bd_qs_tbl[i].bdbaseptr,
1166                              in_be32(&ugeth->p_rx_bd_qs_tbl[i].bdbaseptr));
1167                         ugeth_info
1168                             ("bdptr            : addr - 0x%08x, val - 0x%08x",
1169                              (u32) & ugeth->p_rx_bd_qs_tbl[i].bdptr,
1170                              in_be32(&ugeth->p_rx_bd_qs_tbl[i].bdptr));
1171                         ugeth_info
1172                             ("externalbdbaseptr: addr - 0x%08x, val - 0x%08x",
1173                              (u32) & ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
1174                              in_be32(&ugeth->p_rx_bd_qs_tbl[i].
1175                                      externalbdbaseptr));
1176                         ugeth_info
1177                             ("externalbdptr    : addr - 0x%08x, val - 0x%08x",
1178                              (u32) & ugeth->p_rx_bd_qs_tbl[i].externalbdptr,
1179                              in_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdptr));
1180                         ugeth_info("ucode RX Prefetched BDs:");
1181                         ugeth_info("Base address: 0x%08x",
1182                                    (u32)
1183                                    qe_muram_addr(in_be32
1184                                                  (&ugeth->p_rx_bd_qs_tbl[i].
1185                                                   bdbaseptr)));
1186                         mem_disp((u8 *)
1187                                  qe_muram_addr(in_be32
1188                                                (&ugeth->p_rx_bd_qs_tbl[i].
1189                                                 bdbaseptr)),
1190                                  sizeof(ucc_geth_rx_prefetched_bds_t));
1191                 }
1192         }
1193         if (ugeth->p_init_enet_param_shadow) {
1194                 int size;
1195                 ugeth_info("Init enet param shadow:");
1196                 ugeth_info("Base address: 0x%08x",
1197                            (u32) ugeth->p_init_enet_param_shadow);
1198                 mem_disp((u8 *) ugeth->p_init_enet_param_shadow,
1199                          sizeof(*ugeth->p_init_enet_param_shadow));
1200
1201                 size = sizeof(ucc_geth_thread_rx_pram_t);
1202                 if (ugeth->ug_info->rxExtendedFiltering) {
1203                         size +=
1204                             THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING;
1205                         if (ugeth->ug_info->largestexternallookupkeysize ==
1206                             QE_FLTR_TABLE_LOOKUP_KEY_SIZE_8_BYTES)
1207                                 size +=
1208                         THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_8;
1209                         if (ugeth->ug_info->largestexternallookupkeysize ==
1210                             QE_FLTR_TABLE_LOOKUP_KEY_SIZE_16_BYTES)
1211                                 size +=
1212                         THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_16;
1213                 }
1214
1215                 dump_init_enet_entries(ugeth,
1216                                        &(ugeth->p_init_enet_param_shadow->
1217                                          txthread[0]),
1218                                        ENET_INIT_PARAM_MAX_ENTRIES_TX,
1219                                        sizeof(ucc_geth_thread_tx_pram_t),
1220                                        ugeth->ug_info->riscTx, 0);
1221                 dump_init_enet_entries(ugeth,
1222                                        &(ugeth->p_init_enet_param_shadow->
1223                                          rxthread[0]),
1224                                        ENET_INIT_PARAM_MAX_ENTRIES_RX, size,
1225                                        ugeth->ug_info->riscRx, 1);
1226         }
1227 }
1228 #endif /* DEBUG */
1229
1230 static void init_default_reg_vals(volatile u32 *upsmr_register,
1231                                   volatile u32 *maccfg1_register,
1232                                   volatile u32 *maccfg2_register)
1233 {
1234         out_be32(upsmr_register, UCC_GETH_UPSMR_INIT);
1235         out_be32(maccfg1_register, UCC_GETH_MACCFG1_INIT);
1236         out_be32(maccfg2_register, UCC_GETH_MACCFG2_INIT);
1237 }
1238
1239 static int init_half_duplex_params(int alt_beb,
1240                                    int back_pressure_no_backoff,
1241                                    int no_backoff,
1242                                    int excess_defer,
1243                                    u8 alt_beb_truncation,
1244                                    u8 max_retransmissions,
1245                                    u8 collision_window,
1246                                    volatile u32 *hafdup_register)
1247 {
1248         u32 value = 0;
1249
1250         if ((alt_beb_truncation > HALFDUP_ALT_BEB_TRUNCATION_MAX) ||
1251             (max_retransmissions > HALFDUP_MAX_RETRANSMISSION_MAX) ||
1252             (collision_window > HALFDUP_COLLISION_WINDOW_MAX))
1253                 return -EINVAL;
1254
1255         value = (u32) (alt_beb_truncation << HALFDUP_ALT_BEB_TRUNCATION_SHIFT);
1256
1257         if (alt_beb)
1258                 value |= HALFDUP_ALT_BEB;
1259         if (back_pressure_no_backoff)
1260                 value |= HALFDUP_BACK_PRESSURE_NO_BACKOFF;
1261         if (no_backoff)
1262                 value |= HALFDUP_NO_BACKOFF;
1263         if (excess_defer)
1264                 value |= HALFDUP_EXCESSIVE_DEFER;
1265
1266         value |= (max_retransmissions << HALFDUP_MAX_RETRANSMISSION_SHIFT);
1267
1268         value |= collision_window;
1269
1270         out_be32(hafdup_register, value);
1271         return 0;
1272 }
1273
1274 static int init_inter_frame_gap_params(u8 non_btb_cs_ipg,
1275                                        u8 non_btb_ipg,
1276                                        u8 min_ifg,
1277                                        u8 btb_ipg,
1278                                        volatile u32 *ipgifg_register)
1279 {
1280         u32 value = 0;
1281
1282         /* Non-Back-to-back IPG part 1 should be <= Non-Back-to-back
1283         IPG part 2 */
1284         if (non_btb_cs_ipg > non_btb_ipg)
1285                 return -EINVAL;
1286
1287         if ((non_btb_cs_ipg > IPGIFG_NON_BACK_TO_BACK_IFG_PART1_MAX) ||
1288             (non_btb_ipg > IPGIFG_NON_BACK_TO_BACK_IFG_PART2_MAX) ||
1289             /*(min_ifg        > IPGIFG_MINIMUM_IFG_ENFORCEMENT_MAX) || */
1290             (btb_ipg > IPGIFG_BACK_TO_BACK_IFG_MAX))
1291                 return -EINVAL;
1292
1293         value |=
1294             ((non_btb_cs_ipg << IPGIFG_NON_BACK_TO_BACK_IFG_PART1_SHIFT) &
1295              IPGIFG_NBTB_CS_IPG_MASK);
1296         value |=
1297             ((non_btb_ipg << IPGIFG_NON_BACK_TO_BACK_IFG_PART2_SHIFT) &
1298              IPGIFG_NBTB_IPG_MASK);
1299         value |=
1300             ((min_ifg << IPGIFG_MINIMUM_IFG_ENFORCEMENT_SHIFT) &
1301              IPGIFG_MIN_IFG_MASK);
1302         value |= (btb_ipg & IPGIFG_BTB_IPG_MASK);
1303
1304         out_be32(ipgifg_register, value);
1305         return 0;
1306 }
1307
1308 static int init_flow_control_params(u32 automatic_flow_control_mode,
1309                                     int rx_flow_control_enable,
1310                                     int tx_flow_control_enable,
1311                                     u16 pause_period,
1312                                     u16 extension_field,
1313                                     volatile u32 *upsmr_register,
1314                                     volatile u32 *uempr_register,
1315                                     volatile u32 *maccfg1_register)
1316 {
1317         u32 value = 0;
1318
1319         /* Set UEMPR register */
1320         value = (u32) pause_period << UEMPR_PAUSE_TIME_VALUE_SHIFT;
1321         value |= (u32) extension_field << UEMPR_EXTENDED_PAUSE_TIME_VALUE_SHIFT;
1322         out_be32(uempr_register, value);
1323
1324         /* Set UPSMR register */
1325         value = in_be32(upsmr_register);
1326         value |= automatic_flow_control_mode;
1327         out_be32(upsmr_register, value);
1328
1329         value = in_be32(maccfg1_register);
1330         if (rx_flow_control_enable)
1331                 value |= MACCFG1_FLOW_RX;
1332         if (tx_flow_control_enable)
1333                 value |= MACCFG1_FLOW_TX;
1334         out_be32(maccfg1_register, value);
1335
1336         return 0;
1337 }
1338
1339 static int init_hw_statistics_gathering_mode(int enable_hardware_statistics,
1340                                              int auto_zero_hardware_statistics,
1341                                              volatile u32 *upsmr_register,
1342                                              volatile u16 *uescr_register)
1343 {
1344         u32 upsmr_value = 0;
1345         u16 uescr_value = 0;
1346         /* Enable hardware statistics gathering if requested */
1347         if (enable_hardware_statistics) {
1348                 upsmr_value = in_be32(upsmr_register);
1349                 upsmr_value |= UPSMR_HSE;
1350                 out_be32(upsmr_register, upsmr_value);
1351         }
1352
1353         /* Clear hardware statistics counters */
1354         uescr_value = in_be16(uescr_register);
1355         uescr_value |= UESCR_CLRCNT;
1356         /* Automatically zero hardware statistics counters on read,
1357         if requested */
1358         if (auto_zero_hardware_statistics)
1359                 uescr_value |= UESCR_AUTOZ;
1360         out_be16(uescr_register, uescr_value);
1361
1362         return 0;
1363 }
1364
1365 static int init_firmware_statistics_gathering_mode(int
1366                 enable_tx_firmware_statistics,
1367                 int enable_rx_firmware_statistics,
1368                 volatile u32 *tx_rmon_base_ptr,
1369                 u32 tx_firmware_statistics_structure_address,
1370                 volatile u32 *rx_rmon_base_ptr,
1371                 u32 rx_firmware_statistics_structure_address,
1372                 volatile u16 *temoder_register,
1373                 volatile u32 *remoder_register)
1374 {
1375         /* Note: this function does not check if */
1376         /* the parameters it receives are NULL   */
1377         u16 temoder_value;
1378         u32 remoder_value;
1379
1380         if (enable_tx_firmware_statistics) {
1381                 out_be32(tx_rmon_base_ptr,
1382                          tx_firmware_statistics_structure_address);
1383                 temoder_value = in_be16(temoder_register);
1384                 temoder_value |= TEMODER_TX_RMON_STATISTICS_ENABLE;
1385                 out_be16(temoder_register, temoder_value);
1386         }
1387
1388         if (enable_rx_firmware_statistics) {
1389                 out_be32(rx_rmon_base_ptr,
1390                          rx_firmware_statistics_structure_address);
1391                 remoder_value = in_be32(remoder_register);
1392                 remoder_value |= REMODER_RX_RMON_STATISTICS_ENABLE;
1393                 out_be32(remoder_register, remoder_value);
1394         }
1395
1396         return 0;
1397 }
1398
1399 static int init_mac_station_addr_regs(u8 address_byte_0,
1400                                       u8 address_byte_1,
1401                                       u8 address_byte_2,
1402                                       u8 address_byte_3,
1403                                       u8 address_byte_4,
1404                                       u8 address_byte_5,
1405                                       volatile u32 *macstnaddr1_register,
1406                                       volatile u32 *macstnaddr2_register)
1407 {
1408         u32 value = 0;
1409
1410         /* Example: for a station address of 0x12345678ABCD, */
1411         /* 0x12 is byte 0, 0x34 is byte 1 and so on and 0xCD is byte 5 */
1412
1413         /* MACSTNADDR1 Register: */
1414
1415         /* 0                      7   8                      15  */
1416         /* station address byte 5     station address byte 4     */
1417         /* 16                     23  24                     31  */
1418         /* station address byte 3     station address byte 2     */
1419         value |= (u32) ((address_byte_2 << 0) & 0x000000FF);
1420         value |= (u32) ((address_byte_3 << 8) & 0x0000FF00);
1421         value |= (u32) ((address_byte_4 << 16) & 0x00FF0000);
1422         value |= (u32) ((address_byte_5 << 24) & 0xFF000000);
1423
1424         out_be32(macstnaddr1_register, value);
1425
1426         /* MACSTNADDR2 Register: */
1427
1428         /* 0                      7   8                      15  */
1429         /* station address byte 1     station address byte 0     */
1430         /* 16                     23  24                     31  */
1431         /*         reserved                   reserved           */
1432         value = 0;
1433         value |= (u32) ((address_byte_0 << 16) & 0x00FF0000);
1434         value |= (u32) ((address_byte_1 << 24) & 0xFF000000);
1435
1436         out_be32(macstnaddr2_register, value);
1437
1438         return 0;
1439 }
1440
1441 static int init_mac_duplex_mode(int full_duplex,
1442                                 int limited_to_full_duplex,
1443                                 volatile u32 *maccfg2_register)
1444 {
1445         u32 value = 0;
1446
1447         /* some interfaces must work in full duplex mode */
1448         if ((full_duplex == 0) && (limited_to_full_duplex == 1))
1449                 return -EINVAL;
1450
1451         value = in_be32(maccfg2_register);
1452
1453         if (full_duplex)
1454                 value |= MACCFG2_FDX;
1455         else
1456                 value &= ~MACCFG2_FDX;
1457
1458         out_be32(maccfg2_register, value);
1459         return 0;
1460 }
1461
1462 static int init_check_frame_length_mode(int length_check,
1463                                         volatile u32 *maccfg2_register)
1464 {
1465         u32 value = 0;
1466
1467         value = in_be32(maccfg2_register);
1468
1469         if (length_check)
1470                 value |= MACCFG2_LC;
1471         else
1472                 value &= ~MACCFG2_LC;
1473
1474         out_be32(maccfg2_register, value);
1475         return 0;
1476 }
1477
1478 static int init_preamble_length(u8 preamble_length,
1479                                 volatile u32 *maccfg2_register)
1480 {
1481         u32 value = 0;
1482
1483         if ((preamble_length < 3) || (preamble_length > 7))
1484                 return -EINVAL;
1485
1486         value = in_be32(maccfg2_register);
1487         value &= ~MACCFG2_PREL_MASK;
1488         value |= (preamble_length << MACCFG2_PREL_SHIFT);
1489         out_be32(maccfg2_register, value);
1490         return 0;
1491 }
1492
1493 static int init_mii_management_configuration(int reset_mgmt,
1494                                              int preamble_supress,
1495                                              volatile u32 *miimcfg_register,
1496                                              volatile u32 *miimind_register)
1497 {
1498         unsigned int timeout = PHY_INIT_TIMEOUT;
1499         u32 value = 0;
1500
1501         value = in_be32(miimcfg_register);
1502         if (reset_mgmt) {
1503                 value |= MIIMCFG_RESET_MANAGEMENT;
1504                 out_be32(miimcfg_register, value);
1505         }
1506
1507         value = 0;
1508
1509         if (preamble_supress)
1510                 value |= MIIMCFG_NO_PREAMBLE;
1511
1512         value |= UCC_GETH_MIIMCFG_MNGMNT_CLC_DIV_INIT;
1513         out_be32(miimcfg_register, value);
1514
1515         /* Wait until the bus is free */
1516         while ((in_be32(miimind_register) & MIIMIND_BUSY) && timeout--)
1517                 cpu_relax();
1518
1519         if (timeout <= 0) {
1520                 ugeth_err("%s: The MII Bus is stuck!", __FUNCTION__);
1521                 return -ETIMEDOUT;
1522         }
1523
1524         return 0;
1525 }
1526
1527 static int init_rx_parameters(int reject_broadcast,
1528                               int receive_short_frames,
1529                               int promiscuous, volatile u32 *upsmr_register)
1530 {
1531         u32 value = 0;
1532
1533         value = in_be32(upsmr_register);
1534
1535         if (reject_broadcast)
1536                 value |= UPSMR_BRO;
1537         else
1538                 value &= ~UPSMR_BRO;
1539
1540         if (receive_short_frames)
1541                 value |= UPSMR_RSH;
1542         else
1543                 value &= ~UPSMR_RSH;
1544
1545         if (promiscuous)
1546                 value |= UPSMR_PRO;
1547         else
1548                 value &= ~UPSMR_PRO;
1549
1550         out_be32(upsmr_register, value);
1551
1552         return 0;
1553 }
1554
1555 static int init_max_rx_buff_len(u16 max_rx_buf_len,
1556                                 volatile u16 *mrblr_register)
1557 {
1558         /* max_rx_buf_len value must be a multiple of 128 */
1559         if ((max_rx_buf_len == 0)
1560             || (max_rx_buf_len % UCC_GETH_MRBLR_ALIGNMENT))
1561                 return -EINVAL;
1562
1563         out_be16(mrblr_register, max_rx_buf_len);
1564         return 0;
1565 }
1566
1567 static int init_min_frame_len(u16 min_frame_length,
1568                               volatile u16 *minflr_register,
1569                               volatile u16 *mrblr_register)
1570 {
1571         u16 mrblr_value = 0;
1572
1573         mrblr_value = in_be16(mrblr_register);
1574         if (min_frame_length >= (mrblr_value - 4))
1575                 return -EINVAL;
1576
1577         out_be16(minflr_register, min_frame_length);
1578         return 0;
1579 }
1580
1581 static int adjust_enet_interface(ucc_geth_private_t *ugeth)
1582 {
1583         ucc_geth_info_t *ug_info;
1584         ucc_geth_t *ug_regs;
1585         ucc_fast_t *uf_regs;
1586         enet_speed_e speed;
1587         int ret_val, rpm = 0, tbi = 0, r10m = 0, rmm =
1588             0, limited_to_full_duplex = 0;
1589         u32 upsmr, maccfg2, utbipar, tbiBaseAddress;
1590         u16 value;
1591
1592         ugeth_vdbg("%s: IN", __FUNCTION__);
1593
1594         ug_info = ugeth->ug_info;
1595         ug_regs = ugeth->ug_regs;
1596         uf_regs = ugeth->uccf->uf_regs;
1597
1598         /* Analyze enet_interface according to Interface Mode Configuration
1599         table */
1600         ret_val =
1601             get_interface_details(ug_info->enet_interface, &speed, &r10m, &rmm,
1602                                   &rpm, &tbi, &limited_to_full_duplex);
1603         if (ret_val != 0) {
1604                 ugeth_err
1605                   ("%s: half duplex not supported in requested configuration.",
1606                      __FUNCTION__);
1607                 return ret_val;
1608         }
1609
1610         /*                    Set MACCFG2                    */
1611         maccfg2 = in_be32(&ug_regs->maccfg2);
1612         maccfg2 &= ~MACCFG2_INTERFACE_MODE_MASK;
1613         if ((speed == ENET_SPEED_10BT) || (speed == ENET_SPEED_100BT))
1614                 maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
1615         else if (speed == ENET_SPEED_1000BT)
1616                 maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE;
1617         maccfg2 |= ug_info->padAndCrc;
1618         out_be32(&ug_regs->maccfg2, maccfg2);
1619
1620         /*                    Set UPSMR                      */
1621         upsmr = in_be32(&uf_regs->upsmr);
1622         upsmr &= ~(UPSMR_RPM | UPSMR_R10M | UPSMR_TBIM | UPSMR_RMM);
1623         if (rpm)
1624                 upsmr |= UPSMR_RPM;
1625         if (r10m)
1626                 upsmr |= UPSMR_R10M;
1627         if (tbi)
1628                 upsmr |= UPSMR_TBIM;
1629         if (rmm)
1630                 upsmr |= UPSMR_RMM;
1631         out_be32(&uf_regs->upsmr, upsmr);
1632
1633         /*                    Set UTBIPAR                    */
1634         utbipar = in_be32(&ug_regs->utbipar);
1635         utbipar &= ~UTBIPAR_PHY_ADDRESS_MASK;
1636         if (tbi)
1637                 utbipar |=
1638                     (ug_info->phy_address +
1639                      ugeth->ug_info->uf_info.
1640                      ucc_num) << UTBIPAR_PHY_ADDRESS_SHIFT;
1641         else
1642                 utbipar |=
1643                     (0x10 +
1644                      ugeth->ug_info->uf_info.
1645                      ucc_num) << UTBIPAR_PHY_ADDRESS_SHIFT;
1646         out_be32(&ug_regs->utbipar, utbipar);
1647
1648         /* Disable autonegotiation in tbi mode, because by default it
1649         comes up in autonegotiation mode. */
1650         /* Note that this depends on proper setting in utbipar register. */
1651         if (tbi) {
1652                 tbiBaseAddress = in_be32(&ug_regs->utbipar);
1653                 tbiBaseAddress &= UTBIPAR_PHY_ADDRESS_MASK;
1654                 tbiBaseAddress >>= UTBIPAR_PHY_ADDRESS_SHIFT;
1655                 value =
1656                     ugeth->mii_info->mdio_read(ugeth->dev, (u8) tbiBaseAddress,
1657                                                ENET_TBI_MII_CR);
1658                 value &= ~0x1000;       /* Turn off autonegotiation */
1659                 ugeth->mii_info->mdio_write(ugeth->dev, (u8) tbiBaseAddress,
1660                                             ENET_TBI_MII_CR, value);
1661         }
1662
1663         ret_val = init_mac_duplex_mode(1,
1664                                        limited_to_full_duplex,
1665                                        &ug_regs->maccfg2);
1666         if (ret_val != 0) {
1667                 ugeth_err
1668                 ("%s: half duplex not supported in requested configuration.",
1669                      __FUNCTION__);
1670                 return ret_val;
1671         }
1672
1673         init_check_frame_length_mode(ug_info->lengthCheckRx, &ug_regs->maccfg2);
1674
1675         ret_val = init_preamble_length(ug_info->prel, &ug_regs->maccfg2);
1676         if (ret_val != 0) {
1677                 ugeth_err
1678                     ("%s: Preamble length must be between 3 and 7 inclusive.",
1679                      __FUNCTION__);
1680                 return ret_val;
1681         }
1682
1683         return 0;
1684 }
1685
1686 /* Called every time the controller might need to be made
1687  * aware of new link state.  The PHY code conveys this
1688  * information through variables in the ugeth structure, and this
1689  * function converts those variables into the appropriate
1690  * register values, and can bring down the device if needed.
1691  */
1692 static void adjust_link(struct net_device *dev)
1693 {
1694         ucc_geth_private_t *ugeth = netdev_priv(dev);
1695         ucc_geth_t *ug_regs;
1696         u32 tempval;
1697         struct ugeth_mii_info *mii_info = ugeth->mii_info;
1698
1699         ug_regs = ugeth->ug_regs;
1700
1701         if (mii_info->link) {
1702                 /* Now we make sure that we can be in full duplex mode.
1703                  * If not, we operate in half-duplex mode. */
1704                 if (mii_info->duplex != ugeth->oldduplex) {
1705                         if (!(mii_info->duplex)) {
1706                                 tempval = in_be32(&ug_regs->maccfg2);
1707                                 tempval &= ~(MACCFG2_FDX);
1708                                 out_be32(&ug_regs->maccfg2, tempval);
1709
1710                                 ugeth_info("%s: Half Duplex", dev->name);
1711                         } else {
1712                                 tempval = in_be32(&ug_regs->maccfg2);
1713                                 tempval |= MACCFG2_FDX;
1714                                 out_be32(&ug_regs->maccfg2, tempval);
1715
1716                                 ugeth_info("%s: Full Duplex", dev->name);
1717                         }
1718
1719                         ugeth->oldduplex = mii_info->duplex;
1720                 }
1721
1722                 if (mii_info->speed != ugeth->oldspeed) {
1723                         switch (mii_info->speed) {
1724                         case 1000:
1725 #ifdef CONFIG_MPC836x
1726 /* FIXME: This code is for 100Mbs BUG fixing,
1727 remove this when it is fixed!!! */
1728                                 if (ugeth->ug_info->enet_interface ==
1729                                     ENET_1000_GMII)
1730                                 /* Run the commands which initialize the PHY */
1731                                 {
1732                                         tempval =
1733                                             (u32) mii_info->mdio_read(ugeth->
1734                                                 dev, mii_info->mii_id, 0x1b);
1735                                         tempval |= 0x000f;
1736                                         mii_info->mdio_write(ugeth->dev,
1737                                                 mii_info->mii_id, 0x1b,
1738                                                 (u16) tempval);
1739                                         tempval =
1740                                             (u32) mii_info->mdio_read(ugeth->
1741                                                 dev, mii_info->mii_id,
1742                                                 MII_BMCR);
1743                                         mii_info->mdio_write(ugeth->dev,
1744                                                 mii_info->mii_id, MII_BMCR,
1745                                                 (u16) (tempval | BMCR_RESET));
1746                                 } else if (ugeth->ug_info->enet_interface ==
1747                                            ENET_1000_RGMII)
1748                                 /* Run the commands which initialize the PHY */
1749                                 {
1750                                         tempval =
1751                                             (u32) mii_info->mdio_read(ugeth->
1752                                                 dev, mii_info->mii_id, 0x1b);
1753                                         tempval = (tempval & ~0x000f) | 0x000b;
1754                                         mii_info->mdio_write(ugeth->dev,
1755                                                 mii_info->mii_id, 0x1b,
1756                                                 (u16) tempval);
1757                                         tempval =
1758                                             (u32) mii_info->mdio_read(ugeth->
1759                                                 dev, mii_info->mii_id,
1760                                                 MII_BMCR);
1761                                         mii_info->mdio_write(ugeth->dev,
1762                                                 mii_info->mii_id, MII_BMCR,
1763                                                 (u16) (tempval | BMCR_RESET));
1764                                 }
1765                                 msleep(4000);
1766 #endif                          /* CONFIG_MPC8360 */
1767                                 adjust_enet_interface(ugeth);
1768                                 break;
1769                         case 100:
1770                         case 10:
1771 #ifdef CONFIG_MPC836x
1772 /* FIXME: This code is for 100Mbs BUG fixing,
1773 remove this lines when it will be fixed!!! */
1774                                 ugeth->ug_info->enet_interface = ENET_100_RGMII;
1775                                 tempval =
1776                                     (u32) mii_info->mdio_read(ugeth->dev,
1777                                                               mii_info->mii_id,
1778                                                               0x1b);
1779                                 tempval = (tempval & ~0x000f) | 0x000b;
1780                                 mii_info->mdio_write(ugeth->dev,
1781                                                      mii_info->mii_id, 0x1b,
1782                                                      (u16) tempval);
1783                                 tempval =
1784                                     (u32) mii_info->mdio_read(ugeth->dev,
1785                                                               mii_info->mii_id,
1786                                                               MII_BMCR);
1787                                 mii_info->mdio_write(ugeth->dev,
1788                                                      mii_info->mii_id, MII_BMCR,
1789                                                      (u16) (tempval |
1790                                                             BMCR_RESET));
1791                                 msleep(4000);
1792 #endif                          /* CONFIG_MPC8360 */
1793                                 adjust_enet_interface(ugeth);
1794                                 break;
1795                         default:
1796                                 ugeth_warn
1797                                     ("%s: Ack!  Speed (%d) is not 10/100/1000!",
1798                                      dev->name, mii_info->speed);
1799                                 break;
1800                         }
1801
1802                         ugeth_info("%s: Speed %dBT", dev->name,
1803                                    mii_info->speed);
1804
1805                         ugeth->oldspeed = mii_info->speed;
1806                 }
1807
1808                 if (!ugeth->oldlink) {
1809                         ugeth_info("%s: Link is up", dev->name);
1810                         ugeth->oldlink = 1;
1811                         netif_carrier_on(dev);
1812                         netif_schedule(dev);
1813                 }
1814         } else {
1815                 if (ugeth->oldlink) {
1816                         ugeth_info("%s: Link is down", dev->name);
1817                         ugeth->oldlink = 0;
1818                         ugeth->oldspeed = 0;
1819                         ugeth->oldduplex = -1;
1820                         netif_carrier_off(dev);
1821                 }
1822         }
1823 }
1824
1825 /* Configure the PHY for dev.
1826  * returns 0 if success.  -1 if failure
1827  */
1828 static int init_phy(struct net_device *dev)
1829 {
1830         ucc_geth_private_t *ugeth = netdev_priv(dev);
1831         struct phy_info *curphy;
1832         ucc_mii_mng_t *mii_regs;
1833         struct ugeth_mii_info *mii_info;
1834         int err;
1835
1836         mii_regs = &ugeth->ug_regs->miimng;
1837
1838         ugeth->oldlink = 0;
1839         ugeth->oldspeed = 0;
1840         ugeth->oldduplex = -1;
1841
1842         mii_info = kmalloc(sizeof(struct ugeth_mii_info), GFP_KERNEL);
1843
1844         if (NULL == mii_info) {
1845                 ugeth_err("%s: Could not allocate mii_info", dev->name);
1846                 return -ENOMEM;
1847         }
1848
1849         mii_info->mii_regs = mii_regs;
1850         mii_info->speed = SPEED_1000;
1851         mii_info->duplex = DUPLEX_FULL;
1852         mii_info->pause = 0;
1853         mii_info->link = 0;
1854
1855         mii_info->advertising = (ADVERTISED_10baseT_Half |
1856                                  ADVERTISED_10baseT_Full |
1857                                  ADVERTISED_100baseT_Half |
1858                                  ADVERTISED_100baseT_Full |
1859                                  ADVERTISED_1000baseT_Full);
1860         mii_info->autoneg = 1;
1861
1862         mii_info->mii_id = ugeth->ug_info->phy_address;
1863
1864         mii_info->dev = dev;
1865
1866         mii_info->mdio_read = &read_phy_reg;
1867         mii_info->mdio_write = &write_phy_reg;
1868
1869         ugeth->mii_info = mii_info;
1870
1871         spin_lock_irq(&ugeth->lock);
1872
1873         /* Set this UCC to be the master of the MII managment */
1874         ucc_set_qe_mux_mii_mng(ugeth->ug_info->uf_info.ucc_num);
1875
1876         if (init_mii_management_configuration(1,
1877                                               ugeth->ug_info->
1878                                               miiPreambleSupress,
1879                                               &mii_regs->miimcfg,
1880                                               &mii_regs->miimind)) {
1881                 ugeth_err("%s: The MII Bus is stuck!", dev->name);
1882                 err = -1;
1883                 goto bus_fail;
1884         }
1885
1886         spin_unlock_irq(&ugeth->lock);
1887
1888         /* get info for this PHY */
1889         curphy = get_phy_info(ugeth->mii_info);
1890
1891         if (curphy == NULL) {
1892                 ugeth_err("%s: No PHY found", dev->name);
1893                 err = -1;
1894                 goto no_phy;
1895         }
1896
1897         mii_info->phyinfo = curphy;
1898
1899         /* Run the commands which initialize the PHY */
1900         if (curphy->init) {
1901                 err = curphy->init(ugeth->mii_info);
1902                 if (err)
1903                         goto phy_init_fail;
1904         }
1905
1906         return 0;
1907
1908       phy_init_fail:
1909       no_phy:
1910       bus_fail:
1911         kfree(mii_info);
1912
1913         return err;
1914 }
1915
1916 #ifdef CONFIG_UGETH_TX_ON_DEMOND
1917 static int ugeth_transmit_on_demand(ucc_geth_private_t *ugeth)
1918 {
1919         ucc_fast_transmit_on_demand(ugeth->uccf);
1920
1921         return 0;
1922 }
1923 #endif
1924
1925 static int ugeth_graceful_stop_tx(ucc_geth_private_t *ugeth)
1926 {
1927         ucc_fast_private_t *uccf;
1928         u32 cecr_subblock;
1929         u32 temp;
1930
1931         uccf = ugeth->uccf;
1932
1933         /* Mask GRACEFUL STOP TX interrupt bit and clear it */
1934         temp = in_be32(uccf->p_uccm);
1935         temp &= ~UCCE_GRA;
1936         out_be32(uccf->p_uccm, temp);
1937         out_be32(uccf->p_ucce, UCCE_GRA);       /* clear by writing 1 */
1938
1939         /* Issue host command */
1940         cecr_subblock =
1941             ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
1942         qe_issue_cmd(QE_GRACEFUL_STOP_TX, cecr_subblock,
1943                      (u8) QE_CR_PROTOCOL_ETHERNET, 0);
1944
1945         /* Wait for command to complete */
1946         do {
1947                 temp = in_be32(uccf->p_ucce);
1948         } while (!(temp & UCCE_GRA));
1949
1950         uccf->stopped_tx = 1;
1951
1952         return 0;
1953 }
1954
1955 static int ugeth_graceful_stop_rx(ucc_geth_private_t * ugeth)
1956 {
1957         ucc_fast_private_t *uccf;
1958         u32 cecr_subblock;
1959         u8 temp;
1960
1961         uccf = ugeth->uccf;
1962
1963         /* Clear acknowledge bit */
1964         temp = ugeth->p_rx_glbl_pram->rxgstpack;
1965         temp &= ~GRACEFUL_STOP_ACKNOWLEDGE_RX;
1966         ugeth->p_rx_glbl_pram->rxgstpack = temp;
1967
1968         /* Keep issuing command and checking acknowledge bit until
1969         it is asserted, according to spec */
1970         do {
1971                 /* Issue host command */
1972                 cecr_subblock =
1973                     ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.
1974                                                 ucc_num);
1975                 qe_issue_cmd(QE_GRACEFUL_STOP_RX, cecr_subblock,
1976                              (u8) QE_CR_PROTOCOL_ETHERNET, 0);
1977
1978                 temp = ugeth->p_rx_glbl_pram->rxgstpack;
1979         } while (!(temp & GRACEFUL_STOP_ACKNOWLEDGE_RX));
1980
1981         uccf->stopped_rx = 1;
1982
1983         return 0;
1984 }
1985
1986 static int ugeth_restart_tx(ucc_geth_private_t *ugeth)
1987 {
1988         ucc_fast_private_t *uccf;
1989         u32 cecr_subblock;
1990
1991         uccf = ugeth->uccf;
1992
1993         cecr_subblock =
1994             ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
1995         qe_issue_cmd(QE_RESTART_TX, cecr_subblock, (u8) QE_CR_PROTOCOL_ETHERNET,
1996                      0);
1997         uccf->stopped_tx = 0;
1998
1999         return 0;
2000 }
2001
2002 static int ugeth_restart_rx(ucc_geth_private_t *ugeth)
2003 {
2004         ucc_fast_private_t *uccf;
2005         u32 cecr_subblock;
2006
2007         uccf = ugeth->uccf;
2008
2009         cecr_subblock =
2010             ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
2011         qe_issue_cmd(QE_RESTART_RX, cecr_subblock, (u8) QE_CR_PROTOCOL_ETHERNET,
2012                      0);
2013         uccf->stopped_rx = 0;
2014
2015         return 0;
2016 }
2017
2018 static int ugeth_enable(ucc_geth_private_t *ugeth, comm_dir_e mode)
2019 {
2020         ucc_fast_private_t *uccf;
2021         int enabled_tx, enabled_rx;
2022
2023         uccf = ugeth->uccf;
2024
2025         /* check if the UCC number is in range. */
2026         if (ugeth->ug_info->uf_info.ucc_num >= UCC_MAX_NUM) {
2027                 ugeth_err("%s: ucc_num out of range.", __FUNCTION__);
2028                 return -EINVAL;
2029         }
2030
2031         enabled_tx = uccf->enabled_tx;
2032         enabled_rx = uccf->enabled_rx;
2033
2034         /* Get Tx and Rx going again, in case this channel was actively
2035         disabled. */
2036         if ((mode & COMM_DIR_TX) && (!enabled_tx) && uccf->stopped_tx)
2037                 ugeth_restart_tx(ugeth);
2038         if ((mode & COMM_DIR_RX) && (!enabled_rx) && uccf->stopped_rx)
2039                 ugeth_restart_rx(ugeth);
2040
2041         ucc_fast_enable(uccf, mode);    /* OK to do even if not disabled */
2042
2043         return 0;
2044
2045 }
2046
2047 static int ugeth_disable(ucc_geth_private_t * ugeth, comm_dir_e mode)
2048 {
2049         ucc_fast_private_t *uccf;
2050
2051         uccf = ugeth->uccf;
2052
2053         /* check if the UCC number is in range. */
2054         if (ugeth->ug_info->uf_info.ucc_num >= UCC_MAX_NUM) {
2055                 ugeth_err("%s: ucc_num out of range.", __FUNCTION__);
2056                 return -EINVAL;
2057         }
2058
2059         /* Stop any transmissions */
2060         if ((mode & COMM_DIR_TX) && uccf->enabled_tx && !uccf->stopped_tx)
2061                 ugeth_graceful_stop_tx(ugeth);
2062
2063         /* Stop any receptions */
2064         if ((mode & COMM_DIR_RX) && uccf->enabled_rx && !uccf->stopped_rx)
2065                 ugeth_graceful_stop_rx(ugeth);
2066
2067         ucc_fast_disable(ugeth->uccf, mode); /* OK to do even if not enabled */
2068
2069         return 0;
2070 }
2071
2072 static void ugeth_dump_regs(ucc_geth_private_t *ugeth)
2073 {
2074 #ifdef DEBUG
2075         ucc_fast_dump_regs(ugeth->uccf);
2076         dump_regs(ugeth);
2077         dump_bds(ugeth);
2078 #endif
2079 }
2080
2081 #ifdef CONFIG_UGETH_FILTERING
2082 static int ugeth_ext_filtering_serialize_tad(ucc_geth_tad_params_t *
2083                                              p_UccGethTadParams,
2084                                              qe_fltr_tad_t *qe_fltr_tad)
2085 {
2086         u16 temp;
2087
2088         /* Zero serialized TAD */
2089         memset(qe_fltr_tad, 0, QE_FLTR_TAD_SIZE);
2090
2091         qe_fltr_tad->serialized[0] |= UCC_GETH_TAD_V;   /* Must have this */
2092         if (p_UccGethTadParams->rx_non_dynamic_extended_features_mode ||
2093             (p_UccGethTadParams->vtag_op != UCC_GETH_VLAN_OPERATION_TAGGED_NOP)
2094             || (p_UccGethTadParams->vnontag_op !=
2095                 UCC_GETH_VLAN_OPERATION_NON_TAGGED_NOP)
2096             )
2097                 qe_fltr_tad->serialized[0] |= UCC_GETH_TAD_EF;
2098         if (p_UccGethTadParams->reject_frame)
2099                 qe_fltr_tad->serialized[0] |= UCC_GETH_TAD_REJ;
2100         temp =
2101             (u16) (((u16) p_UccGethTadParams->
2102                     vtag_op) << UCC_GETH_TAD_VTAG_OP_SHIFT);
2103         qe_fltr_tad->serialized[0] |= (u8) (temp >> 8); /* upper bits */
2104
2105         qe_fltr_tad->serialized[1] |= (u8) (temp & 0x00ff);     /* lower bits */
2106         if (p_UccGethTadParams->vnontag_op ==
2107             UCC_GETH_VLAN_OPERATION_NON_TAGGED_Q_TAG_INSERT)
2108                 qe_fltr_tad->serialized[1] |= UCC_GETH_TAD_V_NON_VTAG_OP;
2109         qe_fltr_tad->serialized[1] |=
2110             p_UccGethTadParams->rqos << UCC_GETH_TAD_RQOS_SHIFT;
2111
2112         qe_fltr_tad->serialized[2] |=
2113             p_UccGethTadParams->vpri << UCC_GETH_TAD_V_PRIORITY_SHIFT;
2114         /* upper bits */
2115         qe_fltr_tad->serialized[2] |= (u8) (p_UccGethTadParams->vid >> 8);
2116         /* lower bits */
2117         qe_fltr_tad->serialized[3] |= (u8) (p_UccGethTadParams->vid & 0x00ff);
2118
2119         return 0;
2120 }
2121
2122 static enet_addr_container_t
2123     *ugeth_82xx_filtering_get_match_addr_in_hash(ucc_geth_private_t *ugeth,
2124                                                  enet_addr_t *p_enet_addr)
2125 {
2126         enet_addr_container_t *enet_addr_cont;
2127         struct list_head *p_lh;
2128         u16 i, num;
2129         int32_t j;
2130         u8 *p_counter;
2131
2132         if ((*p_enet_addr)[0] & ENET_GROUP_ADDR) {
2133                 p_lh = &ugeth->group_hash_q;
2134                 p_counter = &(ugeth->numGroupAddrInHash);
2135         } else {
2136                 p_lh = &ugeth->ind_hash_q;
2137                 p_counter = &(ugeth->numIndAddrInHash);
2138         }
2139
2140         if (!p_lh)
2141                 return NULL;
2142
2143         num = *p_counter;
2144
2145         for (i = 0; i < num; i++) {
2146                 enet_addr_cont =
2147                     (enet_addr_container_t *)
2148                     ENET_ADDR_CONT_ENTRY(dequeue(p_lh));
2149                 for (j = ENET_NUM_OCTETS_PER_ADDRESS - 1; j >= 0; j--) {
2150                         if ((*p_enet_addr)[j] != (enet_addr_cont->address)[j])
2151                                 break;
2152                         if (j == 0)
2153                                 return enet_addr_cont;  /* Found */
2154                 }
2155                 enqueue(p_lh, &enet_addr_cont->node);   /* Put it back */
2156         }
2157         return NULL;
2158 }
2159
2160 static int ugeth_82xx_filtering_add_addr_in_hash(ucc_geth_private_t *ugeth,
2161                                                  enet_addr_t *p_enet_addr)
2162 {
2163         ucc_geth_enet_address_recognition_location_e location;
2164         enet_addr_container_t *enet_addr_cont;
2165         struct list_head *p_lh;
2166         u8 i;
2167         u32 limit;
2168         u8 *p_counter;
2169
2170         if ((*p_enet_addr)[0] & ENET_GROUP_ADDR) {
2171                 p_lh = &ugeth->group_hash_q;
2172                 limit = ugeth->ug_info->maxGroupAddrInHash;
2173                 location =
2174                     UCC_GETH_ENET_ADDRESS_RECOGNITION_LOCATION_GROUP_HASH;
2175                 p_counter = &(ugeth->numGroupAddrInHash);
2176         } else {
2177                 p_lh = &ugeth->ind_hash_q;
2178                 limit = ugeth->ug_info->maxIndAddrInHash;
2179                 location =
2180                     UCC_GETH_ENET_ADDRESS_RECOGNITION_LOCATION_INDIVIDUAL_HASH;
2181                 p_counter = &(ugeth->numIndAddrInHash);
2182         }
2183
2184         if ((enet_addr_cont =
2185              ugeth_82xx_filtering_get_match_addr_in_hash(ugeth, p_enet_addr))) {
2186                 list_add(p_lh, &enet_addr_cont->node);  /* Put it back */
2187                 return 0;
2188         }
2189         if ((!p_lh) || (!(*p_counter < limit)))
2190                 return -EBUSY;
2191         if (!(enet_addr_cont = get_enet_addr_container()))
2192                 return -ENOMEM;
2193         for (i = 0; i < ENET_NUM_OCTETS_PER_ADDRESS; i++)
2194                 (enet_addr_cont->address)[i] = (*p_enet_addr)[i];
2195         enet_addr_cont->location = location;
2196         enqueue(p_lh, &enet_addr_cont->node);   /* Put it back */
2197         ++(*p_counter);
2198
2199         hw_add_addr_in_hash(ugeth, &(enet_addr_cont->address));
2200
2201         return 0;
2202 }
2203
2204 static int ugeth_82xx_filtering_clear_addr_in_hash(ucc_geth_private_t *ugeth,
2205                                                    enet_addr_t *p_enet_addr)
2206 {
2207         ucc_geth_82xx_address_filtering_pram_t *p_82xx_addr_filt;
2208         enet_addr_container_t *enet_addr_cont;
2209         ucc_fast_private_t *uccf;
2210         comm_dir_e comm_dir;
2211         u16 i, num;
2212         struct list_head *p_lh;
2213         u32 *addr_h, *addr_l;
2214         u8 *p_counter;
2215
2216         uccf = ugeth->uccf;
2217
2218         p_82xx_addr_filt =
2219             (ucc_geth_82xx_address_filtering_pram_t *) ugeth->p_rx_glbl_pram->
2220             addressfiltering;
2221
2222         if (!
2223             (enet_addr_cont =
2224              ugeth_82xx_filtering_get_match_addr_in_hash(ugeth, p_enet_addr)))
2225                 return -ENOENT;
2226
2227         /* It's been found and removed from the CQ. */
2228         /* Now destroy its container */
2229         put_enet_addr_container(enet_addr_cont);
2230
2231         if ((*p_enet_addr)[0] & ENET_GROUP_ADDR) {
2232                 addr_h = &(p_82xx_addr_filt->gaddr_h);
2233                 addr_l = &(p_82xx_addr_filt->gaddr_l);
2234                 p_lh = &ugeth->group_hash_q;
2235                 p_counter = &(ugeth->numGroupAddrInHash);
2236         } else {
2237                 addr_h = &(p_82xx_addr_filt->iaddr_h);
2238                 addr_l = &(p_82xx_addr_filt->iaddr_l);
2239                 p_lh = &ugeth->ind_hash_q;
2240                 p_counter = &(ugeth->numIndAddrInHash);
2241         }
2242
2243         comm_dir = 0;
2244         if (uccf->enabled_tx)
2245                 comm_dir |= COMM_DIR_TX;
2246         if (uccf->enabled_rx)
2247                 comm_dir |= COMM_DIR_RX;
2248         if (comm_dir)
2249                 ugeth_disable(ugeth, comm_dir);
2250
2251         /* Clear the hash table. */
2252         out_be32(addr_h, 0x00000000);
2253         out_be32(addr_l, 0x00000000);
2254
2255         /* Add all remaining CQ elements back into hash */
2256         num = --(*p_counter);
2257         for (i = 0; i < num; i++) {
2258                 enet_addr_cont =
2259                     (enet_addr_container_t *)
2260                     ENET_ADDR_CONT_ENTRY(dequeue(p_lh));
2261                 hw_add_addr_in_hash(ugeth, &(enet_addr_cont->address));
2262                 enqueue(p_lh, &enet_addr_cont->node);   /* Put it back */
2263         }
2264
2265         if (comm_dir)
2266                 ugeth_enable(ugeth, comm_dir);
2267
2268         return 0;
2269 }
2270 #endif /* CONFIG_UGETH_FILTERING */
2271
2272 static int ugeth_82xx_filtering_clear_all_addr_in_hash(ucc_geth_private_t *
2273                                                        ugeth,
2274                                                        enet_addr_type_e
2275                                                        enet_addr_type)
2276 {
2277         ucc_geth_82xx_address_filtering_pram_t *p_82xx_addr_filt;
2278         ucc_fast_private_t *uccf;
2279         comm_dir_e comm_dir;
2280         struct list_head *p_lh;
2281         u16 i, num;
2282         u32 *addr_h, *addr_l;
2283         u8 *p_counter;
2284
2285         uccf = ugeth->uccf;
2286
2287         p_82xx_addr_filt =
2288             (ucc_geth_82xx_address_filtering_pram_t *) ugeth->p_rx_glbl_pram->
2289             addressfiltering;
2290
2291         if (enet_addr_type == ENET_ADDR_TYPE_GROUP) {
2292                 addr_h = &(p_82xx_addr_filt->gaddr_h);
2293                 addr_l = &(p_82xx_addr_filt->gaddr_l);
2294                 p_lh = &ugeth->group_hash_q;
2295                 p_counter = &(ugeth->numGroupAddrInHash);
2296         } else if (enet_addr_type == ENET_ADDR_TYPE_INDIVIDUAL) {
2297                 addr_h = &(p_82xx_addr_filt->iaddr_h);
2298                 addr_l = &(p_82xx_addr_filt->iaddr_l);
2299                 p_lh = &ugeth->ind_hash_q;
2300                 p_counter = &(ugeth->numIndAddrInHash);
2301         } else
2302                 return -EINVAL;
2303
2304         comm_dir = 0;
2305         if (uccf->enabled_tx)
2306                 comm_dir |= COMM_DIR_TX;
2307         if (uccf->enabled_rx)
2308                 comm_dir |= COMM_DIR_RX;
2309         if (comm_dir)
2310                 ugeth_disable(ugeth, comm_dir);
2311
2312         /* Clear the hash table. */
2313         out_be32(addr_h, 0x00000000);
2314         out_be32(addr_l, 0x00000000);
2315
2316         if (!p_lh)
2317                 return 0;
2318
2319         num = *p_counter;
2320
2321         /* Delete all remaining CQ elements */
2322         for (i = 0; i < num; i++)
2323                 put_enet_addr_container(ENET_ADDR_CONT_ENTRY(dequeue(p_lh)));
2324
2325         *p_counter = 0;
2326
2327         if (comm_dir)
2328                 ugeth_enable(ugeth, comm_dir);
2329
2330         return 0;
2331 }
2332
2333 #ifdef CONFIG_UGETH_FILTERING
2334 static int ugeth_82xx_filtering_add_addr_in_paddr(ucc_geth_private_t *ugeth,
2335                                                   enet_addr_t *p_enet_addr,
2336                                                   u8 paddr_num)
2337 {
2338         int i;
2339
2340         if ((*p_enet_addr)[0] & ENET_GROUP_ADDR)
2341                 ugeth_warn
2342                     ("%s: multicast address added to paddr will have no "
2343                      "effect - is this what you wanted?",
2344                      __FUNCTION__);
2345
2346         ugeth->indAddrRegUsed[paddr_num] = 1;   /* mark this paddr as used */
2347         /* store address in our database */
2348         for (i = 0; i < ENET_NUM_OCTETS_PER_ADDRESS; i++)
2349                 ugeth->paddr[paddr_num][i] = (*p_enet_addr)[i];
2350         /* put in hardware */
2351         return hw_add_addr_in_paddr(ugeth, p_enet_addr, paddr_num);
2352 }
2353 #endif /* CONFIG_UGETH_FILTERING */
2354
2355 static int ugeth_82xx_filtering_clear_addr_in_paddr(ucc_geth_private_t *ugeth,
2356                                                     u8 paddr_num)
2357 {
2358         ugeth->indAddrRegUsed[paddr_num] = 0; /* mark this paddr as not used */
2359         return hw_clear_addr_in_paddr(ugeth, paddr_num);/* clear in hardware */
2360 }
2361
2362 static void ucc_geth_memclean(ucc_geth_private_t *ugeth)
2363 {
2364         u16 i, j;
2365         u8 *bd;
2366
2367         if (!ugeth)
2368                 return;
2369
2370         if (ugeth->uccf)
2371                 ucc_fast_free(ugeth->uccf);
2372
2373         if (ugeth->p_thread_data_tx) {
2374                 qe_muram_free(ugeth->thread_dat_tx_offset);
2375                 ugeth->p_thread_data_tx = NULL;
2376         }
2377         if (ugeth->p_thread_data_rx) {
2378                 qe_muram_free(ugeth->thread_dat_rx_offset);
2379                 ugeth->p_thread_data_rx = NULL;
2380         }
2381         if (ugeth->p_exf_glbl_param) {
2382                 qe_muram_free(ugeth->exf_glbl_param_offset);
2383                 ugeth->p_exf_glbl_param = NULL;
2384         }
2385         if (ugeth->p_rx_glbl_pram) {
2386                 qe_muram_free(ugeth->rx_glbl_pram_offset);
2387                 ugeth->p_rx_glbl_pram = NULL;
2388         }
2389         if (ugeth->p_tx_glbl_pram) {
2390                 qe_muram_free(ugeth->tx_glbl_pram_offset);
2391                 ugeth->p_tx_glbl_pram = NULL;
2392         }
2393         if (ugeth->p_send_q_mem_reg) {
2394                 qe_muram_free(ugeth->send_q_mem_reg_offset);
2395                 ugeth->p_send_q_mem_reg = NULL;
2396         }
2397         if (ugeth->p_scheduler) {
2398                 qe_muram_free(ugeth->scheduler_offset);
2399                 ugeth->p_scheduler = NULL;
2400         }
2401         if (ugeth->p_tx_fw_statistics_pram) {
2402                 qe_muram_free(ugeth->tx_fw_statistics_pram_offset);
2403                 ugeth->p_tx_fw_statistics_pram = NULL;
2404         }
2405         if (ugeth->p_rx_fw_statistics_pram) {
2406                 qe_muram_free(ugeth->rx_fw_statistics_pram_offset);
2407                 ugeth->p_rx_fw_statistics_pram = NULL;
2408         }
2409         if (ugeth->p_rx_irq_coalescing_tbl) {
2410                 qe_muram_free(ugeth->rx_irq_coalescing_tbl_offset);
2411                 ugeth->p_rx_irq_coalescing_tbl = NULL;
2412         }
2413         if (ugeth->p_rx_bd_qs_tbl) {
2414                 qe_muram_free(ugeth->rx_bd_qs_tbl_offset);
2415                 ugeth->p_rx_bd_qs_tbl = NULL;
2416         }
2417         if (ugeth->p_init_enet_param_shadow) {
2418                 return_init_enet_entries(ugeth,
2419                                          &(ugeth->p_init_enet_param_shadow->
2420                                            rxthread[0]),
2421                                          ENET_INIT_PARAM_MAX_ENTRIES_RX,
2422                                          ugeth->ug_info->riscRx, 1);
2423                 return_init_enet_entries(ugeth,
2424                                          &(ugeth->p_init_enet_param_shadow->
2425                                            txthread[0]),
2426                                          ENET_INIT_PARAM_MAX_ENTRIES_TX,
2427                                          ugeth->ug_info->riscTx, 0);
2428                 kfree(ugeth->p_init_enet_param_shadow);
2429                 ugeth->p_init_enet_param_shadow = NULL;
2430         }
2431         for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) {
2432                 bd = ugeth->p_tx_bd_ring[i];
2433                 for (j = 0; j < ugeth->ug_info->bdRingLenTx[i]; j++) {
2434                         if (ugeth->tx_skbuff[i][j]) {
2435                                 dma_unmap_single(NULL,
2436                                                  BD_BUFFER_ARG(bd),
2437                                                  (BD_STATUS_AND_LENGTH(bd) &
2438                                                   BD_LENGTH_MASK),
2439                                                  DMA_TO_DEVICE);
2440                                 dev_kfree_skb_any(ugeth->tx_skbuff[i][j]);
2441                                 ugeth->tx_skbuff[i][j] = NULL;
2442                         }
2443                 }
2444
2445                 kfree(ugeth->tx_skbuff[i]);
2446
2447                 if (ugeth->p_tx_bd_ring[i]) {
2448                         if (ugeth->ug_info->uf_info.bd_mem_part ==
2449                             MEM_PART_SYSTEM)
2450                                 kfree((void *)ugeth->tx_bd_ring_offset[i]);
2451                         else if (ugeth->ug_info->uf_info.bd_mem_part ==
2452                                  MEM_PART_MURAM)
2453                                 qe_muram_free(ugeth->tx_bd_ring_offset[i]);
2454                         ugeth->p_tx_bd_ring[i] = NULL;
2455                 }
2456         }
2457         for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
2458                 if (ugeth->p_rx_bd_ring[i]) {
2459                         /* Return existing data buffers in ring */
2460                         bd = ugeth->p_rx_bd_ring[i];
2461                         for (j = 0; j < ugeth->ug_info->bdRingLenRx[i]; j++) {
2462                                 if (ugeth->rx_skbuff[i][j]) {
2463                                         dma_unmap_single(NULL, BD_BUFFER(bd),
2464                                                  ugeth->ug_info->
2465                                                  uf_info.
2466                                                  max_rx_buf_length +
2467                                                  UCC_GETH_RX_DATA_BUF_ALIGNMENT,
2468                                                  DMA_FROM_DEVICE);
2469
2470                                         dev_kfree_skb_any(ugeth->
2471                                                           rx_skbuff[i][j]);
2472                                         ugeth->rx_skbuff[i][j] = NULL;
2473                                 }
2474                                 bd += UCC_GETH_SIZE_OF_BD;
2475                         }
2476
2477                         kfree(ugeth->rx_skbuff[i]);
2478
2479                         if (ugeth->ug_info->uf_info.bd_mem_part ==
2480                             MEM_PART_SYSTEM)
2481                                 kfree((void *)ugeth->rx_bd_ring_offset[i]);
2482                         else if (ugeth->ug_info->uf_info.bd_mem_part ==
2483                                  MEM_PART_MURAM)
2484                                 qe_muram_free(ugeth->rx_bd_ring_offset[i]);
2485                         ugeth->p_rx_bd_ring[i] = NULL;
2486                 }
2487         }
2488         while (!list_empty(&ugeth->group_hash_q))
2489                 put_enet_addr_container(ENET_ADDR_CONT_ENTRY
2490                                         (dequeue(&ugeth->group_hash_q)));
2491         while (!list_empty(&ugeth->ind_hash_q))
2492                 put_enet_addr_container(ENET_ADDR_CONT_ENTRY
2493                                         (dequeue(&ugeth->ind_hash_q)));
2494
2495 }
2496
2497 static void ucc_geth_set_multi(struct net_device *dev)
2498 {
2499         ucc_geth_private_t *ugeth;
2500         struct dev_mc_list *dmi;
2501         ucc_fast_t *uf_regs;
2502         ucc_geth_82xx_address_filtering_pram_t *p_82xx_addr_filt;
2503         enet_addr_t tempaddr;
2504         u8 *mcptr, *tdptr;
2505         int i, j;
2506
2507         ugeth = netdev_priv(dev);
2508
2509         uf_regs = ugeth->uccf->uf_regs;
2510
2511         if (dev->flags & IFF_PROMISC) {
2512
2513                 /* Log any net taps. */
2514                 printk("%s: Promiscuous mode enabled.\n", dev->name);
2515                 uf_regs->upsmr |= UPSMR_PRO;
2516
2517         } else {
2518
2519                 uf_regs->upsmr &= ~UPSMR_PRO;
2520
2521                 p_82xx_addr_filt =
2522                     (ucc_geth_82xx_address_filtering_pram_t *) ugeth->
2523                     p_rx_glbl_pram->addressfiltering;
2524
2525                 if (dev->flags & IFF_ALLMULTI) {
2526                         /* Catch all multicast addresses, so set the
2527                          * filter to all 1's.
2528                          */
2529                         out_be32(&p_82xx_addr_filt->gaddr_h, 0xffffffff);
2530                         out_be32(&p_82xx_addr_filt->gaddr_l, 0xffffffff);
2531                 } else {
2532                         /* Clear filter and add the addresses in the list.
2533                          */
2534                         out_be32(&p_82xx_addr_filt->gaddr_h, 0x0);
2535                         out_be32(&p_82xx_addr_filt->gaddr_l, 0x0);
2536
2537                         dmi = dev->mc_list;
2538
2539                         for (i = 0; i < dev->mc_count; i++, dmi = dmi->next) {
2540
2541                                 /* Only support group multicast for now.
2542                                  */
2543                                 if (!(dmi->dmi_addr[0] & 1))
2544                                         continue;
2545
2546                                 /* The address in dmi_addr is LSB first,
2547                                  * and taddr is MSB first.  We have to
2548                                  * copy bytes MSB first from dmi_addr.
2549                                  */
2550                                 mcptr = (u8 *) dmi->dmi_addr + 5;
2551                                 tdptr = (u8 *) & tempaddr;
2552                                 for (j = 0; j < 6; j++)
2553                                         *tdptr++ = *mcptr--;
2554
2555                                 /* Ask CPM to run CRC and set bit in
2556                                  * filter mask.
2557                                  */
2558                                 hw_add_addr_in_hash(ugeth, &tempaddr);
2559
2560                         }
2561                 }
2562         }
2563 }
2564
2565 static void ucc_geth_stop(ucc_geth_private_t *ugeth)
2566 {
2567         ucc_geth_t *ug_regs = ugeth->ug_regs;
2568         u32 tempval;
2569
2570         ugeth_vdbg("%s: IN", __FUNCTION__);
2571
2572         /* Disable the controller */
2573         ugeth_disable(ugeth, COMM_DIR_RX_AND_TX);
2574
2575         /* Tell the kernel the link is down */
2576         ugeth->mii_info->link = 0;
2577         adjust_link(ugeth->dev);
2578
2579         /* Mask all interrupts */
2580         out_be32(ugeth->uccf->p_ucce, 0x00000000);
2581
2582         /* Clear all interrupts */
2583         out_be32(ugeth->uccf->p_ucce, 0xffffffff);
2584
2585         /* Disable Rx and Tx */
2586         tempval = in_be32(&ug_regs->maccfg1);
2587         tempval &= ~(MACCFG1_ENABLE_RX | MACCFG1_ENABLE_TX);
2588         out_be32(&ug_regs->maccfg1, tempval);
2589
2590         if (ugeth->ug_info->board_flags & FSL_UGETH_BRD_HAS_PHY_INTR) {
2591                 /* Clear any pending interrupts */
2592                 mii_clear_phy_interrupt(ugeth->mii_info);
2593
2594                 /* Disable PHY Interrupts */
2595                 mii_configure_phy_interrupt(ugeth->mii_info,
2596                                             MII_INTERRUPT_DISABLED);
2597         }
2598
2599         free_irq(ugeth->ug_info->uf_info.irq, ugeth->dev);
2600
2601         if (ugeth->ug_info->board_flags & FSL_UGETH_BRD_HAS_PHY_INTR) {
2602                 free_irq(ugeth->ug_info->phy_interrupt, ugeth->dev);
2603         } else {
2604                 del_timer_sync(&ugeth->phy_info_timer);
2605         }
2606
2607         ucc_geth_memclean(ugeth);
2608 }
2609
2610 static int ucc_geth_startup(ucc_geth_private_t *ugeth)
2611 {
2612         ucc_geth_82xx_address_filtering_pram_t *p_82xx_addr_filt;
2613         ucc_geth_init_pram_t *p_init_enet_pram;
2614         ucc_fast_private_t *uccf;
2615         ucc_geth_info_t *ug_info;
2616         ucc_fast_info_t *uf_info;
2617         ucc_fast_t *uf_regs;
2618         ucc_geth_t *ug_regs;
2619         int ret_val = -EINVAL;
2620         u32 remoder = UCC_GETH_REMODER_INIT;
2621         u32 init_enet_pram_offset, cecr_subblock, command, maccfg1;
2622         u32 ifstat, i, j, size, l2qt, l3qt, length;
2623         u16 temoder = UCC_GETH_TEMODER_INIT;
2624         u16 test;
2625         u8 function_code = 0;
2626         u8 *bd, *endOfRing;
2627         u8 numThreadsRxNumerical, numThreadsTxNumerical;
2628
2629         ugeth_vdbg("%s: IN", __FUNCTION__);
2630
2631         ug_info = ugeth->ug_info;
2632         uf_info = &ug_info->uf_info;
2633
2634         if (!((uf_info->bd_mem_part == MEM_PART_SYSTEM) ||
2635               (uf_info->bd_mem_part == MEM_PART_MURAM))) {
2636                 ugeth_err("%s: Bad memory partition value.", __FUNCTION__);
2637                 return -EINVAL;
2638         }
2639
2640         /* Rx BD lengths */
2641         for (i = 0; i < ug_info->numQueuesRx; i++) {
2642                 if ((ug_info->bdRingLenRx[i] < UCC_GETH_RX_BD_RING_SIZE_MIN) ||
2643                     (ug_info->bdRingLenRx[i] %
2644                      UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT)) {
2645                         ugeth_err
2646                             ("%s: Rx BD ring length must be multiple of 4,"
2647                                 " no smaller than 8.", __FUNCTION__);
2648                         return -EINVAL;
2649                 }
2650         }
2651
2652         /* Tx BD lengths */
2653         for (i = 0; i < ug_info->numQueuesTx; i++) {
2654                 if (ug_info->bdRingLenTx[i] < UCC_GETH_TX_BD_RING_SIZE_MIN) {
2655                         ugeth_err
2656                             ("%s: Tx BD ring length must be no smaller than 2.",
2657                              __FUNCTION__);
2658                         return -EINVAL;
2659                 }
2660         }
2661
2662         /* mrblr */
2663         if ((uf_info->max_rx_buf_length == 0) ||
2664             (uf_info->max_rx_buf_length % UCC_GETH_MRBLR_ALIGNMENT)) {
2665                 ugeth_err
2666                     ("%s: max_rx_buf_length must be non-zero multiple of 128.",
2667                      __FUNCTION__);
2668                 return -EINVAL;
2669         }
2670
2671         /* num Tx queues */
2672         if (ug_info->numQueuesTx > NUM_TX_QUEUES) {
2673                 ugeth_err("%s: number of tx queues too large.", __FUNCTION__);
2674                 return -EINVAL;
2675         }
2676
2677         /* num Rx queues */
2678         if (ug_info->numQueuesRx > NUM_RX_QUEUES) {
2679                 ugeth_err("%s: number of rx queues too large.", __FUNCTION__);
2680                 return -EINVAL;
2681         }
2682
2683         /* l2qt */
2684         for (i = 0; i < UCC_GETH_VLAN_PRIORITY_MAX; i++) {
2685                 if (ug_info->l2qt[i] >= ug_info->numQueuesRx) {
2686                         ugeth_err
2687                             ("%s: VLAN priority table entry must not be"
2688                                 " larger than number of Rx queues.",
2689                              __FUNCTION__);
2690                         return -EINVAL;
2691                 }
2692         }
2693
2694         /* l3qt */
2695         for (i = 0; i < UCC_GETH_IP_PRIORITY_MAX; i++) {
2696                 if (ug_info->l3qt[i] >= ug_info->numQueuesRx) {
2697                         ugeth_err
2698                             ("%s: IP priority table entry must not be"
2699                                 " larger than number of Rx queues.",
2700                              __FUNCTION__);
2701                         return -EINVAL;
2702                 }
2703         }
2704
2705         if (ug_info->cam && !ug_info->ecamptr) {
2706                 ugeth_err("%s: If cam mode is chosen, must supply cam ptr.",
2707                           __FUNCTION__);
2708                 return -EINVAL;
2709         }
2710
2711         if ((ug_info->numStationAddresses !=
2712              UCC_GETH_NUM_OF_STATION_ADDRESSES_1)
2713             && ug_info->rxExtendedFiltering) {
2714                 ugeth_err("%s: Number of station addresses greater than 1 "
2715                           "not allowed in extended parsing mode.",
2716                           __FUNCTION__);
2717                 return -EINVAL;
2718         }
2719
2720         /* Generate uccm_mask for receive */
2721         uf_info->uccm_mask = ug_info->eventRegMask & UCCE_OTHER;/* Errors */
2722         for (i = 0; i < ug_info->numQueuesRx; i++)
2723                 uf_info->uccm_mask |= (UCCE_RXBF_SINGLE_MASK << i);
2724
2725         for (i = 0; i < ug_info->numQueuesTx; i++)
2726                 uf_info->uccm_mask |= (UCCE_TXBF_SINGLE_MASK << i);
2727         /* Initialize the general fast UCC block. */
2728         if (ucc_fast_init(uf_info, &uccf)) {
2729                 ugeth_err("%s: Failed to init uccf.", __FUNCTION__);
2730                 ucc_geth_memclean(ugeth);
2731                 return -ENOMEM;
2732         }
2733         ugeth->uccf = uccf;
2734
2735         switch (ug_info->numThreadsRx) {
2736         case UCC_GETH_NUM_OF_THREADS_1:
2737                 numThreadsRxNumerical = 1;
2738                 break;
2739         case UCC_GETH_NUM_OF_THREADS_2:
2740                 numThreadsRxNumerical = 2;
2741                 break;
2742         case UCC_GETH_NUM_OF_THREADS_4:
2743                 numThreadsRxNumerical = 4;
2744                 break;
2745         case UCC_GETH_NUM_OF_THREADS_6:
2746                 numThreadsRxNumerical = 6;
2747                 break;
2748         case UCC_GETH_NUM_OF_THREADS_8:
2749                 numThreadsRxNumerical = 8;
2750                 break;
2751         default:
2752                 ugeth_err("%s: Bad number of Rx threads value.", __FUNCTION__);
2753                 ucc_geth_memclean(ugeth);
2754                 return -EINVAL;
2755                 break;
2756         }
2757
2758         switch (ug_info->numThreadsTx) {
2759         case UCC_GETH_NUM_OF_THREADS_1:
2760                 numThreadsTxNumerical = 1;
2761                 break;
2762         case UCC_GETH_NUM_OF_THREADS_2:
2763                 numThreadsTxNumerical = 2;
2764                 break;
2765         case UCC_GETH_NUM_OF_THREADS_4:
2766                 numThreadsTxNumerical = 4;
2767                 break;
2768         case UCC_GETH_NUM_OF_THREADS_6:
2769                 numThreadsTxNumerical = 6;
2770                 break;
2771         case UCC_GETH_NUM_OF_THREADS_8:
2772                 numThreadsTxNumerical = 8;
2773                 break;
2774         default:
2775                 ugeth_err("%s: Bad number of Tx threads value.", __FUNCTION__);
2776                 ucc_geth_memclean(ugeth);
2777                 return -EINVAL;
2778                 break;
2779         }
2780
2781         /* Calculate rx_extended_features */
2782         ugeth->rx_non_dynamic_extended_features = ug_info->ipCheckSumCheck ||
2783             ug_info->ipAddressAlignment ||
2784             (ug_info->numStationAddresses !=
2785              UCC_GETH_NUM_OF_STATION_ADDRESSES_1);
2786
2787         ugeth->rx_extended_features = ugeth->rx_non_dynamic_extended_features ||
2788             (ug_info->vlanOperationTagged != UCC_GETH_VLAN_OPERATION_TAGGED_NOP)
2789             || (ug_info->vlanOperationNonTagged !=
2790                 UCC_GETH_VLAN_OPERATION_NON_TAGGED_NOP);
2791
2792         uf_regs = uccf->uf_regs;
2793         ug_regs = (ucc_geth_t *) (uccf->uf_regs);
2794         ugeth->ug_regs = ug_regs;
2795
2796         init_default_reg_vals(&uf_regs->upsmr,
2797                               &ug_regs->maccfg1, &ug_regs->maccfg2);
2798
2799         /*                    Set UPSMR                      */
2800         /* For more details see the hardware spec.           */
2801         init_rx_parameters(ug_info->bro,
2802                            ug_info->rsh, ug_info->pro, &uf_regs->upsmr);
2803
2804         /* We're going to ignore other registers for now, */
2805         /* except as needed to get up and running         */
2806
2807         /*                    Set MACCFG1                    */
2808         /* For more details see the hardware spec.           */
2809         init_flow_control_params(ug_info->aufc,
2810                                  ug_info->receiveFlowControl,
2811                                  1,
2812                                  ug_info->pausePeriod,
2813                                  ug_info->extensionField,
2814                                  &uf_regs->upsmr,
2815                                  &ug_regs->uempr, &ug_regs->maccfg1);
2816
2817         maccfg1 = in_be32(&ug_regs->maccfg1);
2818         maccfg1 |= MACCFG1_ENABLE_RX;
2819         maccfg1 |= MACCFG1_ENABLE_TX;
2820         out_be32(&ug_regs->maccfg1, maccfg1);
2821
2822         /*                    Set IPGIFG                     */
2823         /* For more details see the hardware spec.           */
2824         ret_val = init_inter_frame_gap_params(ug_info->nonBackToBackIfgPart1,
2825                                               ug_info->nonBackToBackIfgPart2,
2826                                               ug_info->
2827                                               miminumInterFrameGapEnforcement,
2828                                               ug_info->backToBackInterFrameGap,
2829                                               &ug_regs->ipgifg);
2830         if (ret_val != 0) {
2831                 ugeth_err("%s: IPGIFG initialization parameter too large.",
2832                           __FUNCTION__);
2833                 ucc_geth_memclean(ugeth);
2834                 return ret_val;
2835         }
2836
2837         /*                    Set HAFDUP                     */
2838         /* For more details see the hardware spec.           */
2839         ret_val = init_half_duplex_params(ug_info->altBeb,
2840                                           ug_info->backPressureNoBackoff,
2841                                           ug_info->noBackoff,
2842                                           ug_info->excessDefer,
2843                                           ug_info->altBebTruncation,
2844                                           ug_info->maxRetransmission,
2845                                           ug_info->collisionWindow,
2846                                           &ug_regs->hafdup);
2847         if (ret_val != 0) {
2848                 ugeth_err("%s: Half Duplex initialization parameter too large.",
2849                           __FUNCTION__);
2850                 ucc_geth_memclean(ugeth);
2851                 return ret_val;
2852         }
2853
2854         /*                    Set IFSTAT                     */
2855         /* For more details see the hardware spec.           */
2856         /* Read only - resets upon read                      */
2857         ifstat = in_be32(&ug_regs->ifstat);
2858
2859         /*                    Clear UEMPR                    */
2860         /* For more details see the hardware spec.           */
2861         out_be32(&ug_regs->uempr, 0);
2862
2863         /*                    Set UESCR                      */
2864         /* For more details see the hardware spec.           */
2865         init_hw_statistics_gathering_mode((ug_info->statisticsMode &
2866                                 UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE),
2867                                 0, &uf_regs->upsmr, &ug_regs->uescr);
2868
2869         /* Allocate Tx bds */
2870         for (j = 0; j < ug_info->numQueuesTx; j++) {
2871                 /* Allocate in multiple of
2872                    UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT,
2873                    according to spec */
2874                 length = ((ug_info->bdRingLenTx[j] * UCC_GETH_SIZE_OF_BD)
2875                           / UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT)
2876                     * UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
2877                 if ((ug_info->bdRingLenTx[j] * UCC_GETH_SIZE_OF_BD) %
2878                     UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT)
2879                         length += UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
2880                 if (uf_info->bd_mem_part == MEM_PART_SYSTEM) {
2881                         u32 align = 4;
2882                         if (UCC_GETH_TX_BD_RING_ALIGNMENT > 4)
2883                                 align = UCC_GETH_TX_BD_RING_ALIGNMENT;
2884                         ugeth->tx_bd_ring_offset[j] =
2885                                 (u32) (kmalloc((u32) (length + align),
2886                                 GFP_KERNEL));
2887                         if (ugeth->tx_bd_ring_offset[j] != 0)
2888                                 ugeth->p_tx_bd_ring[j] =
2889                                         (void*)((ugeth->tx_bd_ring_offset[j] +
2890                                         align) & ~(align - 1));
2891                 } else if (uf_info->bd_mem_part == MEM_PART_MURAM) {
2892                         ugeth->tx_bd_ring_offset[j] =
2893                             qe_muram_alloc(length,
2894                                            UCC_GETH_TX_BD_RING_ALIGNMENT);
2895                         if (!IS_MURAM_ERR(ugeth->tx_bd_ring_offset[j]))
2896                                 ugeth->p_tx_bd_ring[j] =
2897                                     (u8 *) qe_muram_addr(ugeth->
2898                                                          tx_bd_ring_offset[j]);
2899                 }
2900                 if (!ugeth->p_tx_bd_ring[j]) {
2901                         ugeth_err
2902                             ("%s: Can not allocate memory for Tx bd rings.",
2903                              __FUNCTION__);
2904                         ucc_geth_memclean(ugeth);
2905                         return -ENOMEM;
2906                 }
2907                 /* Zero unused end of bd ring, according to spec */
2908                 memset(ugeth->p_tx_bd_ring[j] +
2909                        ug_info->bdRingLenTx[j] * UCC_GETH_SIZE_OF_BD, 0,
2910                        length - ug_info->bdRingLenTx[j] * UCC_GETH_SIZE_OF_BD);
2911         }
2912
2913         /* Allocate Rx bds */
2914         for (j = 0; j < ug_info->numQueuesRx; j++) {
2915                 length = ug_info->bdRingLenRx[j] * UCC_GETH_SIZE_OF_BD;
2916                 if (uf_info->bd_mem_part == MEM_PART_SYSTEM) {
2917                         u32 align = 4;
2918                         if (UCC_GETH_RX_BD_RING_ALIGNMENT > 4)
2919                                 align = UCC_GETH_RX_BD_RING_ALIGNMENT;
2920                         ugeth->rx_bd_ring_offset[j] =
2921                             (u32) (kmalloc((u32) (length + align), GFP_KERNEL));
2922                         if (ugeth->rx_bd_ring_offset[j] != 0)
2923                                 ugeth->p_rx_bd_ring[j] =
2924                                         (void*)((ugeth->rx_bd_ring_offset[j] +
2925                                         align) & ~(align - 1));
2926                 } else if (uf_info->bd_mem_part == MEM_PART_MURAM) {
2927                         ugeth->rx_bd_ring_offset[j] =
2928                             qe_muram_alloc(length,
2929                                            UCC_GETH_RX_BD_RING_ALIGNMENT);
2930                         if (!IS_MURAM_ERR(ugeth->rx_bd_ring_offset[j]))
2931                                 ugeth->p_rx_bd_ring[j] =
2932                                     (u8 *) qe_muram_addr(ugeth->
2933                                                          rx_bd_ring_offset[j]);
2934                 }
2935                 if (!ugeth->p_rx_bd_ring[j]) {
2936                         ugeth_err
2937                             ("%s: Can not allocate memory for Rx bd rings.",
2938                              __FUNCTION__);
2939                         ucc_geth_memclean(ugeth);
2940                         return -ENOMEM;
2941                 }
2942         }
2943
2944         /* Init Tx bds */
2945         for (j = 0; j < ug_info->numQueuesTx; j++) {
2946                 /* Setup the skbuff rings */
2947                 ugeth->tx_skbuff[j] =
2948                     (struct sk_buff **)kmalloc(sizeof(struct sk_buff *) *
2949                                                ugeth->ug_info->bdRingLenTx[j],
2950                                                GFP_KERNEL);
2951
2952                 if (ugeth->tx_skbuff[j] == NULL) {
2953                         ugeth_err("%s: Could not allocate tx_skbuff",
2954                                   __FUNCTION__);
2955                         ucc_geth_memclean(ugeth);
2956                         return -ENOMEM;
2957                 }
2958
2959                 for (i = 0; i < ugeth->ug_info->bdRingLenTx[j]; i++)
2960                         ugeth->tx_skbuff[j][i] = NULL;
2961
2962                 ugeth->skb_curtx[j] = ugeth->skb_dirtytx[j] = 0;
2963                 bd = ugeth->confBd[j] = ugeth->txBd[j] = ugeth->p_tx_bd_ring[j];
2964                 for (i = 0; i < ug_info->bdRingLenTx[j]; i++) {
2965                         BD_BUFFER_CLEAR(bd);
2966                         BD_STATUS_AND_LENGTH_SET(bd, 0);
2967                         bd += UCC_GETH_SIZE_OF_BD;
2968                 }
2969                 bd -= UCC_GETH_SIZE_OF_BD;
2970                 BD_STATUS_AND_LENGTH_SET(bd, T_W);/* for last BD set Wrap bit */
2971         }
2972
2973         /* Init Rx bds */
2974         for (j = 0; j < ug_info->numQueuesRx; j++) {
2975                 /* Setup the skbuff rings */
2976                 ugeth->rx_skbuff[j] =
2977                     (struct sk_buff **)kmalloc(sizeof(struct sk_buff *) *
2978                                                ugeth->ug_info->bdRingLenRx[j],
2979                                                GFP_KERNEL);
2980
2981                 if (ugeth->rx_skbuff[j] == NULL) {
2982                         ugeth_err("%s: Could not allocate rx_skbuff",
2983                                   __FUNCTION__);
2984                         ucc_geth_memclean(ugeth);
2985                         return -ENOMEM;
2986                 }
2987
2988                 for (i = 0; i < ugeth->ug_info->bdRingLenRx[j]; i++)
2989                         ugeth->rx_skbuff[j][i] = NULL;
2990
2991                 ugeth->skb_currx[j] = 0;
2992                 bd = ugeth->rxBd[j] = ugeth->p_rx_bd_ring[j];
2993                 for (i = 0; i < ug_info->bdRingLenRx[j]; i++) {
2994                         BD_STATUS_AND_LENGTH_SET(bd, R_I);
2995                         BD_BUFFER_CLEAR(bd);
2996                         bd += UCC_GETH_SIZE_OF_BD;
2997                 }
2998                 bd -= UCC_GETH_SIZE_OF_BD;
2999                 BD_STATUS_AND_LENGTH_SET(bd, R_W);/* for last BD set Wrap bit */
3000         }
3001
3002         /*
3003          * Global PRAM
3004          */
3005         /* Tx global PRAM */
3006         /* Allocate global tx parameter RAM page */
3007         ugeth->tx_glbl_pram_offset =
3008             qe_muram_alloc(sizeof(ucc_geth_tx_global_pram_t),
3009                            UCC_GETH_TX_GLOBAL_PRAM_ALIGNMENT);
3010         if (IS_MURAM_ERR(ugeth->tx_glbl_pram_offset)) {
3011                 ugeth_err
3012                     ("%s: Can not allocate DPRAM memory for p_tx_glbl_pram.",
3013                      __FUNCTION__);
3014                 ucc_geth_memclean(ugeth);
3015                 return -ENOMEM;
3016         }
3017         ugeth->p_tx_glbl_pram =
3018             (ucc_geth_tx_global_pram_t *) qe_muram_addr(ugeth->
3019                                                         tx_glbl_pram_offset);
3020         /* Zero out p_tx_glbl_pram */
3021         memset(ugeth->p_tx_glbl_pram, 0, sizeof(ucc_geth_tx_global_pram_t));
3022
3023         /* Fill global PRAM */
3024
3025         /* TQPTR */
3026         /* Size varies with number of Tx threads */
3027         ugeth->thread_dat_tx_offset =
3028             qe_muram_alloc(numThreadsTxNumerical *
3029                            sizeof(ucc_geth_thread_data_tx_t) +
3030                            32 * (numThreadsTxNumerical == 1),
3031                            UCC_GETH_THREAD_DATA_ALIGNMENT);
3032         if (IS_MURAM_ERR(ugeth->thread_dat_tx_offset)) {
3033                 ugeth_err
3034                     ("%s: Can not allocate DPRAM memory for p_thread_data_tx.",
3035                      __FUNCTION__);
3036                 ucc_geth_memclean(ugeth);
3037                 return -ENOMEM;
3038         }
3039
3040         ugeth->p_thread_data_tx =
3041             (ucc_geth_thread_data_tx_t *) qe_muram_addr(ugeth->
3042                                                         thread_dat_tx_offset);
3043         out_be32(&ugeth->p_tx_glbl_pram->tqptr, ugeth->thread_dat_tx_offset);
3044
3045         /* vtagtable */
3046         for (i = 0; i < UCC_GETH_TX_VTAG_TABLE_ENTRY_MAX; i++)
3047                 out_be32(&ugeth->p_tx_glbl_pram->vtagtable[i],
3048                          ug_info->vtagtable[i]);
3049
3050         /* iphoffset */
3051         for (i = 0; i < TX_IP_OFFSET_ENTRY_MAX; i++)
3052                 ugeth->p_tx_glbl_pram->iphoffset[i] = ug_info->iphoffset[i];
3053
3054         /* SQPTR */
3055         /* Size varies with number of Tx queues */
3056         ugeth->send_q_mem_reg_offset =
3057             qe_muram_alloc(ug_info->numQueuesTx *
3058                            sizeof(ucc_geth_send_queue_qd_t),
3059                            UCC_GETH_SEND_QUEUE_QUEUE_DESCRIPTOR_ALIGNMENT);
3060         if (IS_MURAM_ERR(ugeth->send_q_mem_reg_offset)) {
3061                 ugeth_err
3062                     ("%s: Can not allocate DPRAM memory for p_send_q_mem_reg.",
3063                      __FUNCTION__);
3064                 ucc_geth_memclean(ugeth);
3065                 return -ENOMEM;
3066         }
3067
3068         ugeth->p_send_q_mem_reg =
3069             (ucc_geth_send_queue_mem_region_t *) qe_muram_addr(ugeth->
3070                         send_q_mem_reg_offset);
3071         out_be32(&ugeth->p_tx_glbl_pram->sqptr, ugeth->send_q_mem_reg_offset);
3072
3073         /* Setup the table */
3074         /* Assume BD rings are already established */
3075         for (i = 0; i < ug_info->numQueuesTx; i++) {
3076                 endOfRing =
3077                     ugeth->p_tx_bd_ring[i] + (ug_info->bdRingLenTx[i] -
3078                                               1) * UCC_GETH_SIZE_OF_BD;
3079                 if (ugeth->ug_info->uf_info.bd_mem_part == MEM_PART_SYSTEM) {
3080                         out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].bd_ring_base,
3081                                  (u32) virt_to_phys(ugeth->p_tx_bd_ring[i]));
3082                         out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].
3083                                  last_bd_completed_address,
3084                                  (u32) virt_to_phys(endOfRing));
3085                 } else if (ugeth->ug_info->uf_info.bd_mem_part ==
3086                            MEM_PART_MURAM) {
3087                         out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].bd_ring_base,
3088                                  (u32) immrbar_virt_to_phys(ugeth->
3089                                                             p_tx_bd_ring[i]));
3090                         out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].
3091                                  last_bd_completed_address,
3092                                  (u32) immrbar_virt_to_phys(endOfRing));
3093                 }
3094         }
3095
3096         /* schedulerbasepointer */
3097
3098         if (ug_info->numQueuesTx > 1) {
3099         /* scheduler exists only if more than 1 tx queue */
3100                 ugeth->scheduler_offset =
3101                     qe_muram_alloc(sizeof(ucc_geth_scheduler_t),
3102                                    UCC_GETH_SCHEDULER_ALIGNMENT);
3103                 if (IS_MURAM_ERR(ugeth->scheduler_offset)) {
3104                         ugeth_err
3105                          ("%s: Can not allocate DPRAM memory for p_scheduler.",
3106                              __FUNCTION__);
3107                         ucc_geth_memclean(ugeth);
3108                         return -ENOMEM;
3109                 }
3110
3111                 ugeth->p_scheduler =
3112                     (ucc_geth_scheduler_t *) qe_muram_addr(ugeth->
3113                                                            scheduler_offset);
3114                 out_be32(&ugeth->p_tx_glbl_pram->schedulerbasepointer,
3115                          ugeth->scheduler_offset);
3116                 /* Zero out p_scheduler */
3117                 memset(ugeth->p_scheduler, 0, sizeof(ucc_geth_scheduler_t));
3118
3119                 /* Set values in scheduler */
3120                 out_be32(&ugeth->p_scheduler->mblinterval,
3121                          ug_info->mblinterval);
3122                 out_be16(&ugeth->p_scheduler->nortsrbytetime,
3123                          ug_info->nortsrbytetime);
3124                 ugeth->p_scheduler->fracsiz = ug_info->fracsiz;
3125                 ugeth->p_scheduler->strictpriorityq = ug_info->strictpriorityq;
3126                 ugeth->p_scheduler->txasap = ug_info->txasap;
3127                 ugeth->p_scheduler->extrabw = ug_info->extrabw;
3128                 for (i = 0; i < NUM_TX_QUEUES; i++)
3129                         ugeth->p_scheduler->weightfactor[i] =
3130                             ug_info->weightfactor[i];
3131
3132                 /* Set pointers to cpucount registers in scheduler */
3133                 ugeth->p_cpucount[0] = &(ugeth->p_scheduler->cpucount0);
3134                 ugeth->p_cpucount[1] = &(ugeth->p_scheduler->cpucount1);
3135                 ugeth->p_cpucount[2] = &(ugeth->p_scheduler->cpucount2);
3136                 ugeth->p_cpucount[3] = &(ugeth->p_scheduler->cpucount3);
3137                 ugeth->p_cpucount[4] = &(ugeth->p_scheduler->cpucount4);
3138                 ugeth->p_cpucount[5] = &(ugeth->p_scheduler->cpucount5);
3139                 ugeth->p_cpucount[6] = &(ugeth->p_scheduler->cpucount6);
3140                 ugeth->p_cpucount[7] = &(ugeth->p_scheduler->cpucount7);
3141         }
3142
3143         /* schedulerbasepointer */
3144         /* TxRMON_PTR (statistics) */
3145         if (ug_info->
3146             statisticsMode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) {
3147                 ugeth->tx_fw_statistics_pram_offset =
3148                     qe_muram_alloc(sizeof
3149                                    (ucc_geth_tx_firmware_statistics_pram_t),
3150                                    UCC_GETH_TX_STATISTICS_ALIGNMENT);
3151                 if (IS_MURAM_ERR(ugeth->tx_fw_statistics_pram_offset)) {
3152                         ugeth_err
3153                             ("%s: Can not allocate DPRAM memory for"
3154                                 " p_tx_fw_statistics_pram.", __FUNCTION__);
3155                         ucc_geth_memclean(ugeth);
3156                         return -ENOMEM;
3157                 }
3158                 ugeth->p_tx_fw_statistics_pram =
3159                     (ucc_geth_tx_firmware_statistics_pram_t *)
3160                     qe_muram_addr(ugeth->tx_fw_statistics_pram_offset);
3161                 /* Zero out p_tx_fw_statistics_pram */
3162                 memset(ugeth->p_tx_fw_statistics_pram,
3163                        0, sizeof(ucc_geth_tx_firmware_statistics_pram_t));
3164         }
3165
3166         /* temoder */
3167         /* Already has speed set */
3168
3169         if (ug_info->numQueuesTx > 1)
3170                 temoder |= TEMODER_SCHEDULER_ENABLE;
3171         if (ug_info->ipCheckSumGenerate)
3172                 temoder |= TEMODER_IP_CHECKSUM_GENERATE;
3173         temoder |= ((ug_info->numQueuesTx - 1) << TEMODER_NUM_OF_QUEUES_SHIFT);
3174         out_be16(&ugeth->p_tx_glbl_pram->temoder, temoder);
3175
3176         test = in_be16(&ugeth->p_tx_glbl_pram->temoder);
3177
3178         /* Function code register value to be used later */
3179         function_code = QE_BMR_BYTE_ORDER_BO_MOT | UCC_FAST_FUNCTION_CODE_GBL;
3180         /* Required for QE */
3181
3182         /* function code register */
3183         out_be32(&ugeth->p_tx_glbl_pram->tstate, ((u32) function_code) << 24);
3184
3185         /* Rx global PRAM */
3186         /* Allocate global rx parameter RAM page */
3187         ugeth->rx_glbl_pram_offset =
3188             qe_muram_alloc(sizeof(ucc_geth_rx_global_pram_t),
3189                            UCC_GETH_RX_GLOBAL_PRAM_ALIGNMENT);
3190         if (IS_MURAM_ERR(ugeth->rx_glbl_pram_offset)) {
3191                 ugeth_err
3192                     ("%s: Can not allocate DPRAM memory for p_rx_glbl_pram.",
3193                      __FUNCTION__);
3194                 ucc_geth_memclean(ugeth);
3195                 return -ENOMEM;
3196         }
3197         ugeth->p_rx_glbl_pram =
3198             (ucc_geth_rx_global_pram_t *) qe_muram_addr(ugeth->
3199                                                         rx_glbl_pram_offset);
3200         /* Zero out p_rx_glbl_pram */
3201         memset(ugeth->p_rx_glbl_pram, 0, sizeof(ucc_geth_rx_global_pram_t));
3202
3203         /* Fill global PRAM */
3204
3205         /* RQPTR */
3206         /* Size varies with number of Rx threads */
3207         ugeth->thread_dat_rx_offset =
3208             qe_muram_alloc(numThreadsRxNumerical *
3209                            sizeof(ucc_geth_thread_data_rx_t),
3210                            UCC_GETH_THREAD_DATA_ALIGNMENT);
3211         if (IS_MURAM_ERR(ugeth->thread_dat_rx_offset)) {
3212                 ugeth_err
3213                     ("%s: Can not allocate DPRAM memory for p_thread_data_rx.",
3214                      __FUNCTION__);
3215                 ucc_geth_memclean(ugeth);
3216                 return -ENOMEM;
3217         }
3218
3219         ugeth->p_thread_data_rx =
3220             (ucc_geth_thread_data_rx_t *) qe_muram_addr(ugeth->
3221                                                         thread_dat_rx_offset);
3222         out_be32(&ugeth->p_rx_glbl_pram->rqptr, ugeth->thread_dat_rx_offset);
3223
3224         /* typeorlen */
3225         out_be16(&ugeth->p_rx_glbl_pram->typeorlen, ug_info->typeorlen);
3226
3227         /* rxrmonbaseptr (statistics) */
3228         if (ug_info->
3229             statisticsMode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX) {
3230                 ugeth->rx_fw_statistics_pram_offset =
3231                     qe_muram_alloc(sizeof
3232                                    (ucc_geth_rx_firmware_statistics_pram_t),
3233                                    UCC_GETH_RX_STATISTICS_ALIGNMENT);
3234                 if (IS_MURAM_ERR(ugeth->rx_fw_statistics_pram_offset)) {
3235                         ugeth_err
3236                                 ("%s: Can not allocate DPRAM memory for"
3237                                 " p_rx_fw_statistics_pram.", __FUNCTION__);
3238                         ucc_geth_memclean(ugeth);
3239                         return -ENOMEM;
3240                 }
3241                 ugeth->p_rx_fw_statistics_pram =
3242                     (ucc_geth_rx_firmware_statistics_pram_t *)
3243                     qe_muram_addr(ugeth->rx_fw_statistics_pram_offset);
3244                 /* Zero out p_rx_fw_statistics_pram */
3245                 memset(ugeth->p_rx_fw_statistics_pram, 0,
3246                        sizeof(ucc_geth_rx_firmware_statistics_pram_t));
3247         }
3248
3249         /* intCoalescingPtr */
3250
3251         /* Size varies with number of Rx queues */
3252         ugeth->rx_irq_coalescing_tbl_offset =
3253             qe_muram_alloc(ug_info->numQueuesRx *
3254                            sizeof(ucc_geth_rx_interrupt_coalescing_entry_t),
3255                            UCC_GETH_RX_INTERRUPT_COALESCING_ALIGNMENT);
3256         if (IS_MURAM_ERR(ugeth->rx_irq_coalescing_tbl_offset)) {
3257                 ugeth_err
3258                     ("%s: Can not allocate DPRAM memory for"
3259                         " p_rx_irq_coalescing_tbl.", __FUNCTION__);
3260                 ucc_geth_memclean(ugeth);
3261                 return -ENOMEM;
3262         }
3263
3264         ugeth->p_rx_irq_coalescing_tbl =
3265             (ucc_geth_rx_interrupt_coalescing_table_t *)
3266             qe_muram_addr(ugeth->rx_irq_coalescing_tbl_offset);
3267         out_be32(&ugeth->p_rx_glbl_pram->intcoalescingptr,
3268                  ugeth->rx_irq_coalescing_tbl_offset);
3269
3270         /* Fill interrupt coalescing table */
3271         for (i = 0; i < ug_info->numQueuesRx; i++) {
3272                 out_be32(&ugeth->p_rx_irq_coalescing_tbl->coalescingentry[i].
3273                          interruptcoalescingmaxvalue,
3274                          ug_info->interruptcoalescingmaxvalue[i]);
3275                 out_be32(&ugeth->p_rx_irq_coalescing_tbl->coalescingentry[i].
3276                          interruptcoalescingcounter,
3277                          ug_info->interruptcoalescingmaxvalue[i]);
3278         }
3279
3280         /* MRBLR */
3281         init_max_rx_buff_len(uf_info->max_rx_buf_length,
3282                              &ugeth->p_rx_glbl_pram->mrblr);
3283         /* MFLR */
3284         out_be16(&ugeth->p_rx_glbl_pram->mflr, ug_info->maxFrameLength);
3285         /* MINFLR */
3286         init_min_frame_len(ug_info->minFrameLength,
3287                            &ugeth->p_rx_glbl_pram->minflr,
3288                            &ugeth->p_rx_glbl_pram->mrblr);
3289         /* MAXD1 */
3290         out_be16(&ugeth->p_rx_glbl_pram->maxd1, ug_info->maxD1Length);
3291         /* MAXD2 */
3292         out_be16(&ugeth->p_rx_glbl_pram->maxd2, ug_info->maxD2Length);
3293
3294         /* l2qt */
3295         l2qt = 0;
3296         for (i = 0; i < UCC_GETH_VLAN_PRIORITY_MAX; i++)
3297                 l2qt |= (ug_info->l2qt[i] << (28 - 4 * i));
3298         out_be32(&ugeth->p_rx_glbl_pram->l2qt, l2qt);
3299
3300         /* l3qt */
3301         for (j = 0; j < UCC_GETH_IP_PRIORITY_MAX; j += 8) {
3302                 l3qt = 0;
3303                 for (i = 0; i < 8; i++)
3304                         l3qt |= (ug_info->l3qt[j + i] << (28 - 4 * i));
3305                 out_be32(&ugeth->p_rx_glbl_pram->l3qt[j], l3qt);
3306         }
3307
3308         /* vlantype */
3309         out_be16(&ugeth->p_rx_glbl_pram->vlantype, ug_info->vlantype);
3310
3311         /* vlantci */
3312         out_be16(&ugeth->p_rx_glbl_pram->vlantci, ug_info->vlantci);
3313
3314         /* ecamptr */
3315         out_be32(&ugeth->p_rx_glbl_pram->ecamptr, ug_info->ecamptr);
3316
3317         /* RBDQPTR */
3318         /* Size varies with number of Rx queues */
3319         ugeth->rx_bd_qs_tbl_offset =
3320             qe_muram_alloc(ug_info->numQueuesRx *
3321                            (sizeof(ucc_geth_rx_bd_queues_entry_t) +
3322                             sizeof(ucc_geth_rx_prefetched_bds_t)),
3323                            UCC_GETH_RX_BD_QUEUES_ALIGNMENT);
3324         if (IS_MURAM_ERR(ugeth->rx_bd_qs_tbl_offset)) {
3325                 ugeth_err
3326                     ("%s: Can not allocate DPRAM memory for p_rx_bd_qs_tbl.",
3327                      __FUNCTION__);
3328                 ucc_geth_memclean(ugeth);
3329                 return -ENOMEM;
3330         }
3331
3332         ugeth->p_rx_bd_qs_tbl =
3333             (ucc_geth_rx_bd_queues_entry_t *) qe_muram_addr(ugeth->
3334                                     rx_bd_qs_tbl_offset);
3335         out_be32(&ugeth->p_rx_glbl_pram->rbdqptr, ugeth->rx_bd_qs_tbl_offset);
3336         /* Zero out p_rx_bd_qs_tbl */
3337         memset(ugeth->p_rx_bd_qs_tbl,
3338                0,
3339                ug_info->numQueuesRx * (sizeof(ucc_geth_rx_bd_queues_entry_t) +
3340                                        sizeof(ucc_geth_rx_prefetched_bds_t)));
3341
3342         /* Setup the table */
3343         /* Assume BD rings are already established */
3344         for (i = 0; i < ug_info->numQueuesRx; i++) {
3345                 if (ugeth->ug_info->uf_info.bd_mem_part == MEM_PART_SYSTEM) {
3346                         out_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
3347                                  (u32) virt_to_phys(ugeth->p_rx_bd_ring[i]));
3348                 } else if (ugeth->ug_info->uf_info.bd_mem_part ==
3349                            MEM_PART_MURAM) {
3350                         out_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
3351                                  (u32) immrbar_virt_to_phys(ugeth->
3352                                                             p_rx_bd_ring[i]));
3353                 }
3354                 /* rest of fields handled by QE */
3355         }
3356
3357         /* remoder */
3358         /* Already has speed set */
3359
3360         if (ugeth->rx_extended_features)
3361                 remoder |= REMODER_RX_EXTENDED_FEATURES;
3362         if (ug_info->rxExtendedFiltering)
3363                 remoder |= REMODER_RX_EXTENDED_FILTERING;
3364         if (ug_info->dynamicMaxFrameLength)
3365                 remoder |= REMODER_DYNAMIC_MAX_FRAME_LENGTH;
3366         if (ug_info->dynamicMinFrameLength)
3367                 remoder |= REMODER_DYNAMIC_MIN_FRAME_LENGTH;
3368         remoder |=
3369             ug_info->vlanOperationTagged << REMODER_VLAN_OPERATION_TAGGED_SHIFT;
3370         remoder |=
3371             ug_info->
3372             vlanOperationNonTagged << REMODER_VLAN_OPERATION_NON_TAGGED_SHIFT;
3373         remoder |= ug_info->rxQoSMode << REMODER_RX_QOS_MODE_SHIFT;
3374         remoder |= ((ug_info->numQueuesRx - 1) << REMODER_NUM_OF_QUEUES_SHIFT);
3375         if (ug_info->ipCheckSumCheck)
3376                 remoder |= REMODER_IP_CHECKSUM_CHECK;
3377         if (ug_info->ipAddressAlignment)
3378                 remoder |= REMODER_IP_ADDRESS_ALIGNMENT;
3379         out_be32(&ugeth->p_rx_glbl_pram->remoder, remoder);
3380
3381         /* Note that this function must be called */
3382         /* ONLY AFTER p_tx_fw_statistics_pram */
3383         /* andp_UccGethRxFirmwareStatisticsPram are allocated ! */
3384         init_firmware_statistics_gathering_mode((ug_info->
3385                 statisticsMode &
3386                 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX),
3387                 (ug_info->statisticsMode &
3388                 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX),
3389                 &ugeth->p_tx_glbl_pram->txrmonbaseptr,
3390                 ugeth->tx_fw_statistics_pram_offset,
3391                 &ugeth->p_rx_glbl_pram->rxrmonbaseptr,
3392                 ugeth->rx_fw_statistics_pram_offset,
3393                 &ugeth->p_tx_glbl_pram->temoder,
3394                 &ugeth->p_rx_glbl_pram->remoder);
3395
3396         /* function code register */
3397         ugeth->p_rx_glbl_pram->rstate = function_code;
3398
3399         /* initialize extended filtering */
3400         if (ug_info->rxExtendedFiltering) {
3401                 if (!ug_info->extendedFilteringChainPointer) {
3402                         ugeth_err("%s: Null Extended Filtering Chain Pointer.",
3403                                   __FUNCTION__);
3404                         ucc_geth_memclean(ugeth);
3405                         return -EINVAL;
3406                 }
3407
3408                 /* Allocate memory for extended filtering Mode Global
3409                 Parameters */
3410                 ugeth->exf_glbl_param_offset =
3411                     qe_muram_alloc(sizeof(ucc_geth_exf_global_pram_t),
3412                 UCC_GETH_RX_EXTENDED_FILTERING_GLOBAL_PARAMETERS_ALIGNMENT);
3413                 if (IS_MURAM_ERR(ugeth->exf_glbl_param_offset)) {
3414                         ugeth_err
3415                                 ("%s: Can not allocate DPRAM memory for"
3416                                 " p_exf_glbl_param.", __FUNCTION__);
3417                         ucc_geth_memclean(ugeth);
3418                         return -ENOMEM;
3419                 }
3420
3421                 ugeth->p_exf_glbl_param =
3422                     (ucc_geth_exf_global_pram_t *) qe_muram_addr(ugeth->
3423                                  exf_glbl_param_offset);
3424                 out_be32(&ugeth->p_rx_glbl_pram->exfGlobalParam,
3425                          ugeth->exf_glbl_param_offset);
3426                 out_be32(&ugeth->p_exf_glbl_param->l2pcdptr,
3427                          (u32) ug_info->extendedFilteringChainPointer);
3428
3429         } else {                /* initialize 82xx style address filtering */
3430
3431                 /* Init individual address recognition registers to disabled */
3432
3433                 for (j = 0; j < NUM_OF_PADDRS; j++)
3434                         ugeth_82xx_filtering_clear_addr_in_paddr(ugeth, (u8) j);
3435
3436                 /* Create CQs for hash tables */
3437                 if (ug_info->maxGroupAddrInHash > 0) {
3438                         INIT_LIST_HEAD(&ugeth->group_hash_q);
3439                 }
3440                 if (ug_info->maxIndAddrInHash > 0) {
3441                         INIT_LIST_HEAD(&ugeth->ind_hash_q);
3442                 }
3443                 p_82xx_addr_filt =
3444                     (ucc_geth_82xx_address_filtering_pram_t *) ugeth->
3445                     p_rx_glbl_pram->addressfiltering;
3446
3447                 ugeth_82xx_filtering_clear_all_addr_in_hash(ugeth,
3448                         ENET_ADDR_TYPE_GROUP);
3449                 ugeth_82xx_filtering_clear_all_addr_in_hash(ugeth,
3450                         ENET_ADDR_TYPE_INDIVIDUAL);
3451         }
3452
3453         /*
3454          * Initialize UCC at QE level
3455          */
3456
3457         command = QE_INIT_TX_RX;
3458
3459         /* Allocate shadow InitEnet command parameter structure.
3460          * This is needed because after the InitEnet command is executed,
3461          * the structure in DPRAM is released, because DPRAM is a premium
3462          * resource.
3463          * This shadow structure keeps a copy of what was done so that the
3464          * allocated resources can be released when the channel is freed.
3465          */
3466         if (!(ugeth->p_init_enet_param_shadow =
3467              (ucc_geth_init_pram_t *) kmalloc(sizeof(ucc_geth_init_pram_t),
3468                                               GFP_KERNEL))) {
3469                 ugeth_err
3470                     ("%s: Can not allocate memory for"
3471                         " p_UccInitEnetParamShadows.", __FUNCTION__);
3472                 ucc_geth_memclean(ugeth);
3473                 return -ENOMEM;
3474         }
3475         /* Zero out *p_init_enet_param_shadow */
3476         memset((char *)ugeth->p_init_enet_param_shadow,
3477                0, sizeof(ucc_geth_init_pram_t));
3478
3479         /* Fill shadow InitEnet command parameter structure */
3480
3481         ugeth->p_init_enet_param_shadow->resinit1 =
3482             ENET_INIT_PARAM_MAGIC_RES_INIT1;
3483         ugeth->p_init_enet_param_shadow->resinit2 =
3484             ENET_INIT_PARAM_MAGIC_RES_INIT2;
3485         ugeth->p_init_enet_param_shadow->resinit3 =
3486             ENET_INIT_PARAM_MAGIC_RES_INIT3;
3487         ugeth->p_init_enet_param_shadow->resinit4 =
3488             ENET_INIT_PARAM_MAGIC_RES_INIT4;
3489         ugeth->p_init_enet_param_shadow->resinit5 =
3490             ENET_INIT_PARAM_MAGIC_RES_INIT5;
3491         ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
3492             ((u32) ug_info->numThreadsRx) << ENET_INIT_PARAM_RGF_SHIFT;
3493         ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
3494             ((u32) ug_info->numThreadsTx) << ENET_INIT_PARAM_TGF_SHIFT;
3495
3496         ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
3497             ugeth->rx_glbl_pram_offset | ug_info->riscRx;
3498         if ((ug_info->largestexternallookupkeysize !=
3499              QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_NONE)
3500             && (ug_info->largestexternallookupkeysize !=
3501                 QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_8_BYTES)
3502             && (ug_info->largestexternallookupkeysize !=
3503                 QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_16_BYTES)) {
3504                 ugeth_err("%s: Invalid largest External Lookup Key Size.",
3505                           __FUNCTION__);
3506                 ucc_geth_memclean(ugeth);
3507                 return -EINVAL;
3508         }
3509         ugeth->p_init_enet_param_shadow->largestexternallookupkeysize =
3510             ug_info->largestexternallookupkeysize;
3511         size = sizeof(ucc_geth_thread_rx_pram_t);
3512         if (ug_info->rxExtendedFiltering) {
3513                 size += THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING;
3514                 if (ug_info->largestexternallookupkeysize ==
3515                     QE_FLTR_TABLE_LOOKUP_KEY_SIZE_8_BYTES)
3516                         size +=
3517                             THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_8;
3518                 if (ug_info->largestexternallookupkeysize ==
3519                     QE_FLTR_TABLE_LOOKUP_KEY_SIZE_16_BYTES)
3520                         size +=
3521                             THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_16;
3522         }
3523
3524         if ((ret_val = fill_init_enet_entries(ugeth, &(ugeth->
3525                 p_init_enet_param_shadow->rxthread[0]),
3526                 (u8) (numThreadsRxNumerical + 1)
3527                 /* Rx needs one extra for terminator */
3528                 , size, UCC_GETH_THREAD_RX_PRAM_ALIGNMENT,
3529                 ug_info->riscRx, 1)) != 0) {
3530                         ugeth_err("%s: Can not fill p_init_enet_param_shadow.",
3531                                 __FUNCTION__);
3532                 ucc_geth_memclean(ugeth);
3533                 return ret_val;
3534         }
3535
3536         ugeth->p_init_enet_param_shadow->txglobal =
3537             ugeth->tx_glbl_pram_offset | ug_info->riscTx;
3538         if ((ret_val =
3539              fill_init_enet_entries(ugeth,
3540                                     &(ugeth->p_init_enet_param_shadow->
3541                                       txthread[0]), numThreadsTxNumerical,
3542                                     sizeof(ucc_geth_thread_tx_pram_t),
3543                                     UCC_GETH_THREAD_TX_PRAM_ALIGNMENT,
3544                                     ug_info->riscTx, 0)) != 0) {
3545                 ugeth_err("%s: Can not fill p_init_enet_param_shadow.",
3546                           __FUNCTION__);
3547                 ucc_geth_memclean(ugeth);
3548                 return ret_val;
3549         }
3550
3551         /* Load Rx bds with buffers */
3552         for (i = 0; i < ug_info->numQueuesRx; i++) {
3553                 if ((ret_val = rx_bd_buffer_set(ugeth, (u8) i)) != 0) {
3554                         ugeth_err("%s: Can not fill Rx bds with buffers.",
3555                                   __FUNCTION__);
3556                         ucc_geth_memclean(ugeth);
3557                         return ret_val;
3558                 }
3559         }
3560
3561         /* Allocate InitEnet command parameter structure */
3562         init_enet_pram_offset = qe_muram_alloc(sizeof(ucc_geth_init_pram_t), 4);
3563         if (IS_MURAM_ERR(init_enet_pram_offset)) {
3564                 ugeth_err
3565                     ("%s: Can not allocate DPRAM memory for p_init_enet_pram.",
3566                      __FUNCTION__);
3567                 ucc_geth_memclean(ugeth);
3568                 return -ENOMEM;
3569         }
3570         p_init_enet_pram =
3571             (ucc_geth_init_pram_t *) qe_muram_addr(init_enet_pram_offset);
3572
3573         /* Copy shadow InitEnet command parameter structure into PRAM */
3574         p_init_enet_pram->resinit1 = ugeth->p_init_enet_param_shadow->resinit1;
3575         p_init_enet_pram->resinit2 = ugeth->p_init_enet_param_shadow->resinit2;
3576         p_init_enet_pram->resinit3 = ugeth->p_init_enet_param_shadow->resinit3;
3577         p_init_enet_pram->resinit4 = ugeth->p_init_enet_param_shadow->resinit4;
3578         out_be16(&p_init_enet_pram->resinit5,
3579                  ugeth->p_init_enet_param_shadow->resinit5);
3580         p_init_enet_pram->largestexternallookupkeysize =
3581             ugeth->p_init_enet_param_shadow->largestexternallookupkeysize;
3582         out_be32(&p_init_enet_pram->rgftgfrxglobal,
3583                  ugeth->p_init_enet_param_shadow->rgftgfrxglobal);
3584         for (i = 0; i < ENET_INIT_PARAM_MAX_ENTRIES_RX; i++)
3585                 out_be32(&p_init_enet_pram->rxthread[i],
3586                          ugeth->p_init_enet_param_shadow->rxthread[i]);
3587         out_be32(&p_init_enet_pram->txglobal,
3588                  ugeth->p_init_enet_param_shadow->txglobal);
3589         for (i = 0; i < ENET_INIT_PARAM_MAX_ENTRIES_TX; i++)
3590                 out_be32(&p_init_enet_pram->txthread[i],
3591                          ugeth->p_init_enet_param_shadow->txthread[i]);
3592
3593         /* Issue QE command */
3594         cecr_subblock =
3595             ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
3596         qe_issue_cmd(command, cecr_subblock, (u8) QE_CR_PROTOCOL_ETHERNET,
3597                      init_enet_pram_offset);
3598
3599         /* Free InitEnet command parameter */
3600         qe_muram_free(init_enet_pram_offset);
3601
3602         return 0;
3603 }
3604
3605 /* returns a net_device_stats structure pointer */
3606 static struct net_device_stats *ucc_geth_get_stats(struct net_device *dev)
3607 {
3608         ucc_geth_private_t *ugeth = netdev_priv(dev);
3609
3610         return &(ugeth->stats);
3611 }
3612
3613 /* ucc_geth_timeout gets called when a packet has not been
3614  * transmitted after a set amount of time.
3615  * For now, assume that clearing out all the structures, and
3616  * starting over will fix the problem. */
3617 static void ucc_geth_timeout(struct net_device *dev)
3618 {
3619         ucc_geth_private_t *ugeth = netdev_priv(dev);
3620
3621         ugeth_vdbg("%s: IN", __FUNCTION__);
3622
3623         ugeth->stats.tx_errors++;
3624
3625         ugeth_dump_regs(ugeth);
3626
3627         if (dev->flags & IFF_UP) {
3628                 ucc_geth_stop(ugeth);
3629                 ucc_geth_startup(ugeth);
3630         }
3631
3632         netif_schedule(dev);
3633 }
3634
3635 /* This is called by the kernel when a frame is ready for transmission. */
3636 /* It is pointed to by the dev->hard_start_xmit function pointer */
3637 static int ucc_geth_start_xmit(struct sk_buff *skb, struct net_device *dev)
3638 {
3639         ucc_geth_private_t *ugeth = netdev_priv(dev);
3640         u8 *bd;                 /* BD pointer */
3641         u32 bd_status;
3642         u8 txQ = 0;
3643
3644         ugeth_vdbg("%s: IN", __FUNCTION__);
3645
3646         spin_lock_irq(&ugeth->lock);
3647
3648         ugeth->stats.tx_bytes += skb->len;
3649
3650         /* Start from the next BD that should be filled */
3651         bd = ugeth->txBd[txQ];
3652         bd_status = BD_STATUS_AND_LENGTH(bd);
3653         /* Save the skb pointer so we can free it later */
3654         ugeth->tx_skbuff[txQ][ugeth->skb_curtx[txQ]] = skb;
3655
3656         /* Update the current skb pointer (wrapping if this was the last) */
3657         ugeth->skb_curtx[txQ] =
3658             (ugeth->skb_curtx[txQ] +
3659              1) & TX_RING_MOD_MASK(ugeth->ug_info->bdRingLenTx[txQ]);
3660
3661         /* set up the buffer descriptor */
3662         BD_BUFFER_SET(bd,
3663                       dma_map_single(NULL, skb->data, skb->len, DMA_TO_DEVICE));
3664
3665         //printk(KERN_DEBUG"skb->data is 0x%x\n",skb->data);
3666
3667         bd_status = (bd_status & T_W) | T_R | T_I | T_L | skb->len;
3668
3669         BD_STATUS_AND_LENGTH_SET(bd, bd_status);
3670
3671         dev->trans_start = jiffies;
3672
3673         /* Move to next BD in the ring */
3674         if (!(bd_status & T_W))
3675                 ugeth->txBd[txQ] = bd + UCC_GETH_SIZE_OF_BD;
3676         else
3677                 ugeth->txBd[txQ] = ugeth->p_tx_bd_ring[txQ];
3678
3679         /* If the next BD still needs to be cleaned up, then the bds
3680            are full.  We need to tell the kernel to stop sending us stuff. */
3681         if (bd == ugeth->confBd[txQ]) {
3682                 if (!netif_queue_stopped(dev))
3683                         netif_stop_queue(dev);
3684         }
3685
3686         if (ugeth->p_scheduler) {
3687                 ugeth->cpucount[txQ]++;
3688                 /* Indicate to QE that there are more Tx bds ready for
3689                 transmission */
3690                 /* This is done by writing a running counter of the bd
3691                 count to the scheduler PRAM. */
3692                 out_be16(ugeth->p_cpucount[txQ], ugeth->cpucount[txQ]);
3693         }
3694
3695         spin_unlock_irq(&ugeth->lock);
3696
3697         return 0;
3698 }
3699
3700 static int ucc_geth_rx(ucc_geth_private_t *ugeth, u8 rxQ, int rx_work_limit)
3701 {
3702         struct sk_buff *skb;
3703         u8 *bd;
3704         u16 length, howmany = 0;
3705         u32 bd_status;
3706         u8 *bdBuffer;
3707
3708         ugeth_vdbg("%s: IN", __FUNCTION__);
3709
3710         spin_lock(&ugeth->lock);
3711         /* collect received buffers */
3712         bd = ugeth->rxBd[rxQ];
3713
3714         bd_status = BD_STATUS_AND_LENGTH(bd);
3715
3716         /* while there are received buffers and BD is full (~R_E) */
3717         while (!((bd_status & (R_E)) || (--rx_work_limit < 0))) {
3718                 bdBuffer = (u8 *) BD_BUFFER(bd);
3719                 length = (u16) ((bd_status & BD_LENGTH_MASK) - 4);
3720                 skb = ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]];
3721
3722                 /* determine whether buffer is first, last, first and last
3723                 (single buffer frame) or middle (not first and not last) */
3724                 if (!skb ||
3725                     (!(bd_status & (R_F | R_L))) ||
3726                     (bd_status & R_ERRORS_FATAL)) {
3727                         ugeth_vdbg("%s, %d: ERROR!!! skb - 0x%08x",
3728                                    __FUNCTION__, __LINE__, (u32) skb);
3729                         if (skb)
3730                                 dev_kfree_skb_any(skb);
3731
3732                         ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]] = NULL;
3733                         ugeth->stats.rx_dropped++;
3734                 } else {
3735                         ugeth->stats.rx_packets++;
3736                         howmany++;
3737
3738                         /* Prep the skb for the packet */
3739                         skb_put(skb, length);
3740
3741                         /* Tell the skb what kind of packet this is */
3742                         skb->protocol = eth_type_trans(skb, ugeth->dev);
3743
3744                         ugeth->stats.rx_bytes += length;
3745                         /* Send the packet up the stack */
3746 #ifdef CONFIG_UGETH_NAPI
3747                         netif_receive_skb(skb);
3748 #else
3749                         netif_rx(skb);
3750 #endif                          /* CONFIG_UGETH_NAPI */
3751                 }
3752
3753                 ugeth->dev->last_rx = jiffies;
3754
3755                 skb = get_new_skb(ugeth, bd);
3756                 if (!skb) {
3757                         ugeth_warn("%s: No Rx Data Buffer", __FUNCTION__);
3758                         spin_unlock(&ugeth->lock);
3759                         ugeth->stats.rx_dropped++;
3760                         break;
3761                 }
3762
3763                 ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]] = skb;
3764
3765                 /* update to point at the next skb */
3766                 ugeth->skb_currx[rxQ] =
3767                     (ugeth->skb_currx[rxQ] +
3768                      1) & RX_RING_MOD_MASK(ugeth->ug_info->bdRingLenRx[rxQ]);
3769
3770                 if (bd_status & R_W)
3771                         bd = ugeth->p_rx_bd_ring[rxQ];
3772                 else
3773                         bd += UCC_GETH_SIZE_OF_BD;
3774
3775                 bd_status = BD_STATUS_AND_LENGTH(bd);
3776         }
3777
3778         ugeth->rxBd[rxQ] = bd;
3779         spin_unlock(&ugeth->lock);
3780         return howmany;
3781 }
3782
3783 static int ucc_geth_tx(struct net_device *dev, u8 txQ)
3784 {
3785         /* Start from the next BD that should be filled */
3786         ucc_geth_private_t *ugeth = netdev_priv(dev);
3787         u8 *bd;                 /* BD pointer */
3788         u32 bd_status;
3789
3790         bd = ugeth->confBd[txQ];
3791         bd_status = BD_STATUS_AND_LENGTH(bd);
3792
3793         /* Normal processing. */
3794         while ((bd_status & T_R) == 0) {
3795                 /* BD contains already transmitted buffer.   */
3796                 /* Handle the transmitted buffer and release */
3797                 /* the BD to be used with the current frame  */
3798
3799                 if ((bd = ugeth->txBd[txQ]) && (netif_queue_stopped(dev) == 0))
3800                         break;
3801
3802                 ugeth->stats.tx_packets++;
3803
3804                 /* Free the sk buffer associated with this TxBD */
3805                 dev_kfree_skb_irq(ugeth->
3806                                   tx_skbuff[txQ][ugeth->skb_dirtytx[txQ]]);
3807                 ugeth->tx_skbuff[txQ][ugeth->skb_dirtytx[txQ]] = NULL;
3808                 ugeth->skb_dirtytx[txQ] =
3809                     (ugeth->skb_dirtytx[txQ] +
3810                      1) & TX_RING_MOD_MASK(ugeth->ug_info->bdRingLenTx[txQ]);
3811
3812                 /* We freed a buffer, so now we can restart transmission */
3813                 if (netif_queue_stopped(dev))
3814                         netif_wake_queue(dev);
3815
3816                 /* Advance the confirmation BD pointer */
3817                 if (!(bd_status & T_W))
3818                         ugeth->confBd[txQ] += UCC_GETH_SIZE_OF_BD;
3819                 else
3820                         ugeth->confBd[txQ] = ugeth->p_tx_bd_ring[txQ];
3821         }
3822         return 0;
3823 }
3824
3825 #ifdef CONFIG_UGETH_NAPI
3826 static int ucc_geth_poll(struct net_device *dev, int *budget)
3827 {
3828         ucc_geth_private_t *ugeth = netdev_priv(dev);
3829         int howmany;
3830         int rx_work_limit = *budget;
3831         u8 rxQ = 0;
3832
3833         if (rx_work_limit > dev->quota)
3834                 rx_work_limit = dev->quota;
3835
3836         howmany = ucc_geth_rx(ugeth, rxQ, rx_work_limit);
3837
3838         dev->quota -= howmany;
3839         rx_work_limit -= howmany;
3840         *budget -= howmany;
3841
3842         if (rx_work_limit >= 0)
3843                 netif_rx_complete(dev);
3844
3845         return (rx_work_limit < 0) ? 1 : 0;
3846 }
3847 #endif                          /* CONFIG_UGETH_NAPI */
3848
3849 static irqreturn_t ucc_geth_irq_handler(int irq, void *info,
3850                                         struct pt_regs *regs)
3851 {
3852         struct net_device *dev = (struct net_device *)info;
3853         ucc_geth_private_t *ugeth = netdev_priv(dev);
3854         ucc_fast_private_t *uccf;
3855         ucc_geth_info_t *ug_info;
3856         register u32 ucce = 0;
3857         register u32 bit_mask = UCCE_RXBF_SINGLE_MASK;
3858         register u32 tx_mask = UCCE_TXBF_SINGLE_MASK;
3859         register u8 i;
3860
3861         ugeth_vdbg("%s: IN", __FUNCTION__);
3862
3863         if (!ugeth)
3864                 return IRQ_NONE;
3865
3866         uccf = ugeth->uccf;
3867         ug_info = ugeth->ug_info;
3868
3869         do {
3870                 ucce |= (u32) (in_be32(uccf->p_ucce) & in_be32(uccf->p_uccm));
3871
3872                 /* clear event bits for next time */
3873                 /* Side effect here is to mask ucce variable
3874                 for future processing below. */
3875                 out_be32(uccf->p_ucce, ucce);   /* Clear with ones,
3876                                                 but only bits in UCCM */
3877
3878                 /* We ignore Tx interrupts because Tx confirmation is
3879                 done inside Tx routine */
3880
3881                 for (i = 0; i < ug_info->numQueuesRx; i++) {
3882                         if (ucce & bit_mask)
3883                                 ucc_geth_rx(ugeth, i,
3884                                             (int)ugeth->ug_info->
3885                                             bdRingLenRx[i]);
3886                         ucce &= ~bit_mask;
3887                         bit_mask <<= 1;
3888                 }
3889
3890                 for (i = 0; i < ug_info->numQueuesTx; i++) {
3891                         if (ucce & tx_mask)
3892                                 ucc_geth_tx(dev, i);
3893                         ucce &= ~tx_mask;
3894                         tx_mask <<= 1;
3895                 }
3896
3897                 /* Exceptions */
3898                 if (ucce & UCCE_BSY) {
3899                         ugeth_vdbg("Got BUSY irq!!!!");
3900                         ugeth->stats.rx_errors++;
3901                         ucce &= ~UCCE_BSY;
3902                 }
3903                 if (ucce & UCCE_OTHER) {
3904                         ugeth_vdbg("Got frame with error (ucce - 0x%08x)!!!!",
3905                                    ucce);
3906                         ugeth->stats.rx_errors++;
3907                         ucce &= ~ucce;
3908                 }
3909         }
3910         while (ucce);
3911
3912         return IRQ_HANDLED;
3913 }
3914
3915 static irqreturn_t phy_interrupt(int irq, void *dev_id, struct pt_regs *regs)
3916 {
3917         struct net_device *dev = (struct net_device *)dev_id;
3918         ucc_geth_private_t *ugeth = netdev_priv(dev);
3919
3920         ugeth_vdbg("%s: IN", __FUNCTION__);
3921
3922         /* Clear the interrupt */
3923         mii_clear_phy_interrupt(ugeth->mii_info);
3924
3925         /* Disable PHY interrupts */
3926         mii_configure_phy_interrupt(ugeth->mii_info, MII_INTERRUPT_DISABLED);
3927
3928         /* Schedule the phy change */
3929         schedule_work(&ugeth->tq);
3930
3931         return IRQ_HANDLED;
3932 }
3933
3934 /* Scheduled by the phy_interrupt/timer to handle PHY changes */
3935 static void ugeth_phy_change(void *data)
3936 {
3937         struct net_device *dev = (struct net_device *)data;
3938         ucc_geth_private_t *ugeth = netdev_priv(dev);
3939         ucc_geth_t *ug_regs;
3940         int result = 0;
3941
3942         ugeth_vdbg("%s: IN", __FUNCTION__);
3943
3944         ug_regs = ugeth->ug_regs;
3945
3946         /* Delay to give the PHY a chance to change the
3947          * register state */
3948         msleep(1);
3949
3950         /* Update the link, speed, duplex */
3951         result = ugeth->mii_info->phyinfo->read_status(ugeth->mii_info);
3952
3953         /* Adjust the known status as long as the link
3954          * isn't still coming up */
3955         if ((0 == result) || (ugeth->mii_info->link == 0))
3956                 adjust_link(dev);
3957
3958         /* Reenable interrupts, if needed */
3959         if (ugeth->ug_info->board_flags & FSL_UGETH_BRD_HAS_PHY_INTR)
3960                 mii_configure_phy_interrupt(ugeth->mii_info,
3961                                             MII_INTERRUPT_ENABLED);
3962 }
3963
3964 /* Called every so often on systems that don't interrupt
3965  * the core for PHY changes */
3966 static void ugeth_phy_timer(unsigned long data)
3967 {
3968         struct net_device *dev = (struct net_device *)data;
3969         ucc_geth_private_t *ugeth = netdev_priv(dev);
3970
3971         schedule_work(&ugeth->tq);
3972
3973         mod_timer(&ugeth->phy_info_timer, jiffies + PHY_CHANGE_TIME * HZ);
3974 }
3975
3976 /* Keep trying aneg for some time
3977  * If, after GFAR_AN_TIMEOUT seconds, it has not
3978  * finished, we switch to forced.
3979  * Either way, once the process has completed, we either
3980  * request the interrupt, or switch the timer over to
3981  * using ugeth_phy_timer to check status */
3982 static void ugeth_phy_startup_timer(unsigned long data)
3983 {
3984         struct ugeth_mii_info *mii_info = (struct ugeth_mii_info *)data;
3985         ucc_geth_private_t *ugeth = netdev_priv(mii_info->dev);
3986         static int secondary = UGETH_AN_TIMEOUT;
3987         int result;
3988
3989         /* Configure the Auto-negotiation */
3990         result = mii_info->phyinfo->config_aneg(mii_info);
3991
3992         /* If autonegotiation failed to start, and
3993          * we haven't timed out, reset the timer, and return */
3994         if (result && secondary--) {
3995                 mod_timer(&ugeth->phy_info_timer, jiffies + HZ);
3996                 return;
3997         } else if (result) {
3998                 /* Couldn't start autonegotiation.
3999                  * Try switching to forced */
4000                 mii_info->autoneg = 0;
4001                 result = mii_info->phyinfo->config_aneg(mii_info);
4002
4003                 /* Forcing failed!  Give up */
4004                 if (result) {
4005                         ugeth_err("%s: Forcing failed!", mii_info->dev->name);
4006                         return;
4007                 }
4008         }
4009
4010         /* Kill the timer so it can be restarted */
4011         del_timer_sync(&ugeth->phy_info_timer);
4012
4013         /* Grab the PHY interrupt, if necessary/possible */
4014         if (ugeth->ug_info->board_flags & FSL_UGETH_BRD_HAS_PHY_INTR) {
4015                 if (request_irq(ugeth->ug_info->phy_interrupt,
4016                                 phy_interrupt,
4017                                 SA_SHIRQ, "phy_interrupt", mii_info->dev) < 0) {
4018                         ugeth_err("%s: Can't get IRQ %d (PHY)",
4019                                   mii_info->dev->name,
4020                                   ugeth->ug_info->phy_interrupt);
4021                 } else {
4022                         mii_configure_phy_interrupt(ugeth->mii_info,
4023                                                     MII_INTERRUPT_ENABLED);
4024                         return;
4025                 }
4026         }
4027
4028         /* Start the timer again, this time in order to
4029          * handle a change in status */
4030         init_timer(&ugeth->phy_info_timer);
4031         ugeth->phy_info_timer.function = &ugeth_phy_timer;
4032         ugeth->phy_info_timer.data = (unsigned long)mii_info->dev;
4033         mod_timer(&ugeth->phy_info_timer, jiffies + PHY_CHANGE_TIME * HZ);
4034 }
4035
4036 /* Called when something needs to use the ethernet device */
4037 /* Returns 0 for success. */
4038 static int ucc_geth_open(struct net_device *dev)
4039 {
4040         ucc_geth_private_t *ugeth = netdev_priv(dev);
4041         int err;
4042
4043         ugeth_vdbg("%s: IN", __FUNCTION__);
4044
4045         /* Test station address */
4046         if (dev->dev_addr[0] & ENET_GROUP_ADDR) {
4047                 ugeth_err("%s: Multicast address used for station address"
4048                           " - is this what you wanted?", __FUNCTION__);
4049                 return -EINVAL;
4050         }
4051
4052         err = ucc_geth_startup(ugeth);
4053         if (err) {
4054                 ugeth_err("%s: Cannot configure net device, aborting.",
4055                           dev->name);
4056                 return err;
4057         }
4058
4059         err = adjust_enet_interface(ugeth);
4060         if (err) {
4061                 ugeth_err("%s: Cannot configure net device, aborting.",
4062                           dev->name);
4063                 return err;
4064         }
4065
4066         /*       Set MACSTNADDR1, MACSTNADDR2                */
4067         /* For more details see the hardware spec.           */
4068         init_mac_station_addr_regs(dev->dev_addr[0],
4069                                    dev->dev_addr[1],
4070                                    dev->dev_addr[2],
4071                                    dev->dev_addr[3],
4072                                    dev->dev_addr[4],
4073                                    dev->dev_addr[5],
4074                                    &ugeth->ug_regs->macstnaddr1,
4075                                    &ugeth->ug_regs->macstnaddr2);
4076
4077         err = init_phy(dev);
4078         if (err) {
4079                 ugeth_err("%s: Cannot initialzie PHY, aborting.", dev->name);
4080                 return err;
4081         }
4082 #ifndef CONFIG_UGETH_NAPI
4083         err =
4084             request_irq(ugeth->ug_info->uf_info.irq, ucc_geth_irq_handler, 0,
4085                         "UCC Geth", dev);
4086         if (err) {
4087                 ugeth_err("%s: Cannot get IRQ for net device, aborting.",
4088                           dev->name);
4089                 ucc_geth_stop(ugeth);
4090                 return err;
4091         }
4092 #endif                          /* CONFIG_UGETH_NAPI */
4093
4094         /* Set up the PHY change work queue */
4095         INIT_WORK(&ugeth->tq, ugeth_phy_change, dev);
4096
4097         init_timer(&ugeth->phy_info_timer);
4098         ugeth->phy_info_timer.function = &ugeth_phy_startup_timer;
4099         ugeth->phy_info_timer.data = (unsigned long)ugeth->mii_info;
4100         mod_timer(&ugeth->phy_info_timer, jiffies + HZ);
4101
4102         err = ugeth_enable(ugeth, COMM_DIR_RX_AND_TX);
4103         if (err) {
4104                 ugeth_err("%s: Cannot enable net device, aborting.", dev->name);
4105                 ucc_geth_stop(ugeth);
4106                 return err;
4107         }
4108
4109         netif_start_queue(dev);
4110
4111         return err;
4112 }
4113
4114 /* Stops the kernel queue, and halts the controller */
4115 static int ucc_geth_close(struct net_device *dev)
4116 {
4117         ucc_geth_private_t *ugeth = netdev_priv(dev);
4118
4119         ugeth_vdbg("%s: IN", __FUNCTION__);
4120
4121         ucc_geth_stop(ugeth);
4122
4123         /* Shutdown the PHY */
4124         if (ugeth->mii_info->phyinfo->close)
4125                 ugeth->mii_info->phyinfo->close(ugeth->mii_info);
4126
4127         kfree(ugeth->mii_info);
4128
4129         netif_stop_queue(dev);
4130
4131         return 0;
4132 }
4133
4134 struct ethtool_ops ucc_geth_ethtool_ops = {
4135         .get_settings = NULL,
4136         .get_drvinfo = NULL,
4137         .get_regs_len = NULL,
4138         .get_regs = NULL,
4139         .get_link = NULL,
4140         .get_coalesce = NULL,
4141         .set_coalesce = NULL,
4142         .get_ringparam = NULL,
4143         .set_ringparam = NULL,
4144         .get_strings = NULL,
4145         .get_stats_count = NULL,
4146         .get_ethtool_stats = NULL,
4147 };
4148
4149 static int ucc_geth_probe(struct device *device)
4150 {
4151         struct platform_device *pdev = to_platform_device(device);
4152         struct ucc_geth_platform_data *ugeth_pdata;
4153         struct net_device *dev = NULL;
4154         struct ucc_geth_private *ugeth = NULL;
4155         struct ucc_geth_info *ug_info;
4156         int err;
4157         static int mii_mng_configured = 0;
4158
4159         ugeth_vdbg("%s: IN", __FUNCTION__);
4160
4161         ugeth_pdata = (struct ucc_geth_platform_data *)pdev->dev.platform_data;
4162
4163         ug_info = &ugeth_info[pdev->id];
4164         ug_info->uf_info.ucc_num = pdev->id;
4165         ug_info->uf_info.rx_clock = ugeth_pdata->rx_clock;
4166         ug_info->uf_info.tx_clock = ugeth_pdata->tx_clock;
4167         ug_info->uf_info.regs = ugeth_pdata->phy_reg_addr;
4168         ug_info->uf_info.irq = platform_get_irq(pdev, 0);
4169         ug_info->phy_address = ugeth_pdata->phy_id;
4170         ug_info->enet_interface = ugeth_pdata->phy_interface;
4171         ug_info->board_flags = ugeth_pdata->board_flags;
4172         ug_info->phy_interrupt = ugeth_pdata->phy_interrupt;
4173
4174         printk(KERN_INFO "ucc_geth: UCC%1d at 0x%8x (irq = %d) \n",
4175                 ug_info->uf_info.ucc_num + 1, ug_info->uf_info.regs,
4176                 ug_info->uf_info.irq);
4177
4178         if (ug_info == NULL) {
4179                 ugeth_err("%s: [%d] Missing additional data!", __FUNCTION__,
4180                           pdev->id);
4181                 return -ENODEV;
4182         }
4183
4184         if (!mii_mng_configured) {
4185                 ucc_set_qe_mux_mii_mng(ug_info->uf_info.ucc_num);
4186                 mii_mng_configured = 1;
4187         }
4188
4189         /* Create an ethernet device instance */
4190         dev = alloc_etherdev(sizeof(*ugeth));
4191
4192         if (dev == NULL)
4193                 return -ENOMEM;
4194
4195         ugeth = netdev_priv(dev);
4196         spin_lock_init(&ugeth->lock);
4197
4198         dev_set_drvdata(device, dev);
4199
4200         /* Set the dev->base_addr to the gfar reg region */
4201         dev->base_addr = (unsigned long)(ug_info->uf_info.regs);
4202
4203         SET_MODULE_OWNER(dev);
4204         SET_NETDEV_DEV(dev, device);
4205
4206         /* Fill in the dev structure */
4207         dev->open = ucc_geth_open;
4208         dev->hard_start_xmit = ucc_geth_start_xmit;
4209         dev->tx_timeout = ucc_geth_timeout;
4210         dev->watchdog_timeo = TX_TIMEOUT;
4211 #ifdef CONFIG_UGETH_NAPI
4212         dev->poll = ucc_geth_poll;
4213         dev->weight = UCC_GETH_DEV_WEIGHT;
4214 #endif                          /* CONFIG_UGETH_NAPI */
4215         dev->stop = ucc_geth_close;
4216         dev->get_stats = ucc_geth_get_stats;
4217 //    dev->change_mtu = ucc_geth_change_mtu;
4218         dev->mtu = 1500;
4219         dev->set_multicast_list = ucc_geth_set_multi;
4220         dev->ethtool_ops = &ucc_geth_ethtool_ops;
4221
4222         err = register_netdev(dev);
4223         if (err) {
4224                 ugeth_err("%s: Cannot register net device, aborting.",
4225                           dev->name);
4226                 free_netdev(dev);
4227                 return err;
4228         }
4229
4230         ugeth->ug_info = ug_info;
4231         ugeth->dev = dev;
4232         memcpy(dev->dev_addr, ugeth_pdata->mac_addr, 6);
4233
4234         return 0;
4235 }
4236
4237 static int ucc_geth_remove(struct device *device)
4238 {
4239         struct net_device *dev = dev_get_drvdata(device);
4240         struct ucc_geth_private *ugeth = netdev_priv(dev);
4241
4242         dev_set_drvdata(device, NULL);
4243         ucc_geth_memclean(ugeth);
4244         free_netdev(dev);
4245
4246         return 0;
4247 }
4248
4249 /* Structure for a device driver */
4250 static struct device_driver ucc_geth_driver = {
4251         .name = DRV_NAME,
4252         .bus = &platform_bus_type,
4253         .probe = ucc_geth_probe,
4254         .remove = ucc_geth_remove,
4255 };
4256
4257 static int __init ucc_geth_init(void)
4258 {
4259         int i;
4260         printk(KERN_INFO "ucc_geth: " DRV_DESC "\n");
4261         for (i = 0; i < 8; i++)
4262                 memcpy(&(ugeth_info[i]), &ugeth_primary_info,
4263                        sizeof(ugeth_primary_info));
4264
4265         return driver_register(&ucc_geth_driver);
4266 }
4267
4268 static void __exit ucc_geth_exit(void)
4269 {
4270         driver_unregister(&ucc_geth_driver);
4271 }
4272
4273 module_init(ucc_geth_init);
4274 module_exit(ucc_geth_exit);
4275
4276 MODULE_AUTHOR("Freescale Semiconductor, Inc");
4277 MODULE_DESCRIPTION(DRV_DESC);
4278 MODULE_LICENSE("GPL");