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

   1 /*
   2  * Copyright (C) 2006-2007 Freescale Semicondutor, Inc. All rights reserved.
   3  *
   4  * Author: Shlomi Gridish <gridish@freescale.com>
   5  *         Li Yang <leoli@freescale.com>
   6  *
   7  * Description:
   8  * QE UCC Gigabit Ethernet Driver
   9  *
  10  * This program is free software; you can redistribute  it and/or modify it
  11  * under  the terms of  the GNU General  Public License as published by the
  12  * Free Software Foundation;  either version 2 of the  License, or (at your
  13  * option) any later version.
  14  */
  15 #include <linux/kernel.h>
  16 #include <linux/init.h>
  17 #include <linux/errno.h>
  18 #include <linux/slab.h>
  19 #include <linux/stddef.h>
  20 #include <linux/interrupt.h>
  21 #include <linux/netdevice.h>
  22 #include <linux/etherdevice.h>
  23 #include <linux/skbuff.h>
  24 #include <linux/spinlock.h>
  25 #include <linux/mm.h>
  26 #include <linux/dma-mapping.h>
  27 #include <linux/fsl_devices.h>
  28 #include <linux/mii.h>
  29 #include <linux/phy.h>
  30 #include <linux/workqueue.h>
  31
  32 #include <asm/of_platform.h>
  33 #include <asm/uaccess.h>
  34 #include <asm/irq.h>
  35 #include <asm/io.h>
  36 #include <asm/immap_qe.h>
  37 #include <asm/qe.h>
  38 #include <asm/ucc.h>
  39 #include <asm/ucc_fast.h>
  40
  41 #include "ucc_geth.h"
  42 #include "ucc_geth_mii.h"
  43
  44 #undef DEBUG
  45
  46 #define DRV_DESC "QE UCC Gigabit Ethernet Controller"
  47 #define DRV_NAME "ucc_geth"
  48 #define DRV_VERSION "1.1"
  49
  50 #define ugeth_printk(level, format, arg...)  \
  51         printk(level format "\n", ## arg)
  52
  53 #define ugeth_dbg(format, arg...)            \
  54         ugeth_printk(KERN_DEBUG , format , ## arg)
  55 #define ugeth_err(format, arg...)            \
  56         ugeth_printk(KERN_ERR , format , ## arg)
  57 #define ugeth_info(format, arg...)           \
  58         ugeth_printk(KERN_INFO , format , ## arg)
  59 #define ugeth_warn(format, arg...)           \
  60         ugeth_printk(KERN_WARNING , format , ## arg)
  61
  62 #ifdef UGETH_VERBOSE_DEBUG
  63 #define ugeth_vdbg ugeth_dbg
  64 #else
  65 #define ugeth_vdbg(fmt, args...) do { } while (0)
  66 #endif                          /* UGETH_VERBOSE_DEBUG */
  67
  68 static DEFINE_SPINLOCK(ugeth_lock);
  69
  70 static struct ucc_geth_info ugeth_primary_info = {
  71         .uf_info = {
  72                     .bd_mem_part = MEM_PART_SYSTEM,
  73                     .rtsm = UCC_FAST_SEND_IDLES_BETWEEN_FRAMES,
  74                     .max_rx_buf_length = 1536,
  75                     /* adjusted at startup if max-speed 1000 */
  76                     .urfs = UCC_GETH_URFS_INIT,
  77                     .urfet = UCC_GETH_URFET_INIT,
  78                     .urfset = UCC_GETH_URFSET_INIT,
  79                     .utfs = UCC_GETH_UTFS_INIT,
  80                     .utfet = UCC_GETH_UTFET_INIT,
  81                     .utftt = UCC_GETH_UTFTT_INIT,
  82                     .ufpt = 256,
  83                     .mode = UCC_FAST_PROTOCOL_MODE_ETHERNET,
  84                     .ttx_trx = UCC_FAST_GUMR_TRANSPARENT_TTX_TRX_NORMAL,
  85                     .tenc = UCC_FAST_TX_ENCODING_NRZ,
  86                     .renc = UCC_FAST_RX_ENCODING_NRZ,
  87                     .tcrc = UCC_FAST_16_BIT_CRC,
  88                     .synl = UCC_FAST_SYNC_LEN_NOT_USED,
  89                     },
  90         .numQueuesTx = 1,
  91         .numQueuesRx = 1,
  92         .extendedFilteringChainPointer = ((uint32_t) NULL),
  93         .typeorlen = 3072 /*1536 */ ,
  94         .nonBackToBackIfgPart1 = 0x40,
  95         .nonBackToBackIfgPart2 = 0x60,
  96         .miminumInterFrameGapEnforcement = 0x50,
  97         .backToBackInterFrameGap = 0x60,
  98         .mblinterval = 128,
  99         .nortsrbytetime = 5,
 100         .fracsiz = 1,
 101         .strictpriorityq = 0xff,
 102         .altBebTruncation = 0xa,
 103         .excessDefer = 1,
 104         .maxRetransmission = 0xf,
 105         .collisionWindow = 0x37,
 106         .receiveFlowControl = 1,
 107         .maxGroupAddrInHash = 4,
 108         .maxIndAddrInHash = 4,
 109         .prel = 7,
 110         .maxFrameLength = 1518,
 111         .minFrameLength = 64,
 112         .maxD1Length = 1520,
 113         .maxD2Length = 1520,
 114         .vlantype = 0x8100,
 115         .ecamptr = ((uint32_t) NULL),
 116         .eventRegMask = UCCE_OTHER,
 117         .pausePeriod = 0xf000,
 118         .interruptcoalescingmaxvalue = {1, 1, 1, 1, 1, 1, 1, 1},
 119         .bdRingLenTx = {
 120                         TX_BD_RING_LEN,
 121                         TX_BD_RING_LEN,
 122                         TX_BD_RING_LEN,
 123                         TX_BD_RING_LEN,
 124                         TX_BD_RING_LEN,
 125                         TX_BD_RING_LEN,
 126                         TX_BD_RING_LEN,
 127                         TX_BD_RING_LEN},
 128
 129         .bdRingLenRx = {
 130                         RX_BD_RING_LEN,
 131                         RX_BD_RING_LEN,
 132                         RX_BD_RING_LEN,
 133                         RX_BD_RING_LEN,
 134                         RX_BD_RING_LEN,
 135                         RX_BD_RING_LEN,
 136                         RX_BD_RING_LEN,
 137                         RX_BD_RING_LEN},
 138
 139         .numStationAddresses = UCC_GETH_NUM_OF_STATION_ADDRESSES_1,
 140         .largestexternallookupkeysize =
 141             QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_NONE,
 142         .statisticsMode = UCC_GETH_STATISTICS_GATHERING_MODE_NONE,
 143         .vlanOperationTagged = UCC_GETH_VLAN_OPERATION_TAGGED_NOP,
 144         .vlanOperationNonTagged = UCC_GETH_VLAN_OPERATION_NON_TAGGED_NOP,
 145         .rxQoSMode = UCC_GETH_QOS_MODE_DEFAULT,
 146         .aufc = UPSMR_AUTOMATIC_FLOW_CONTROL_MODE_NONE,
 147         .padAndCrc = MACCFG2_PAD_AND_CRC_MODE_PAD_AND_CRC,
 148         .numThreadsTx = UCC_GETH_NUM_OF_THREADS_4,
 149         .numThreadsRx = UCC_GETH_NUM_OF_THREADS_4,
 150         .riscTx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
 151         .riscRx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
 152 };
 153
 154 static struct ucc_geth_info ugeth_info[8];
 155
 156 #ifdef DEBUG
 157 static void mem_disp(u8 *addr, int size)
 158 {
 159         u8 *i;
 160         int size16Aling = (size >> 4) << 4;
 161         int size4Aling = (size >> 2) << 2;
 162         int notAlign = 0;
 163         if (size % 16)
 164                 notAlign = 1;
 165
 166         for (i = addr; (u32) i < (u32) addr + size16Aling; i += 16)
 167                 printk("0x%08x: %08x %08x %08x %08x\r\n",
 168                        (u32) i,
 169                        *((u32 *) (i)),
 170                        *((u32 *) (i + 4)),
 171                        *((u32 *) (i + 8)), *((u32 *) (i + 12)));
 172         if (notAlign == 1)
 173                 printk("0x%08x: ", (u32) i);
 174         for (; (u32) i < (u32) addr + size4Aling; i += 4)
 175                 printk("%08x ", *((u32 *) (i)));
 176         for (; (u32) i < (u32) addr + size; i++)
 177                 printk("%02x", *((u8 *) (i)));
 178         if (notAlign == 1)
 179                 printk("\r\n");
 180 }
 181 #endif /* DEBUG */
 182
 183 #ifdef CONFIG_UGETH_FILTERING
 184 static void enqueue(struct list_head *node, struct list_head *lh)
 185 {
 186         unsigned long flags;
 187
 188         spin_lock_irqsave(&ugeth_lock, flags);
 189         list_add_tail(node, lh);
 190         spin_unlock_irqrestore(&ugeth_lock, flags);
 191 }
 192 #endif /* CONFIG_UGETH_FILTERING */
 193
 194 static struct list_head *dequeue(struct list_head *lh)
 195 {
 196         unsigned long flags;
 197
 198         spin_lock_irqsave(&ugeth_lock, flags);
 199         if (!list_empty(lh)) {
 200                 struct list_head *node = lh->next;
 201                 list_del(node);
 202                 spin_unlock_irqrestore(&ugeth_lock, flags);
 203                 return node;
 204         } else {
 205                 spin_unlock_irqrestore(&ugeth_lock, flags);
 206                 return NULL;
 207         }
 208 }
 209
 210 static struct sk_buff *get_new_skb(struct ucc_geth_private *ugeth, u8 *bd)
 211 {
 212         struct sk_buff *skb = NULL;
 213
 214         skb = dev_alloc_skb(ugeth->ug_info->uf_info.max_rx_buf_length +
 215                                   UCC_GETH_RX_DATA_BUF_ALIGNMENT);
 216
 217         if (skb == NULL)
 218                 return NULL;
 219
 220         /* We need the data buffer to be aligned properly.  We will reserve
 221          * as many bytes as needed to align the data properly
 222          */
 223         skb_reserve(skb,
 224                     UCC_GETH_RX_DATA_BUF_ALIGNMENT -
 225                     (((unsigned)skb->data) & (UCC_GETH_RX_DATA_BUF_ALIGNMENT -
 226                                               1)));
 227
 228         skb->dev = ugeth->dev;
 229
 230         out_be32(&((struct qe_bd *)bd)->buf,
 231                       dma_map_single(NULL,
 232                                      skb->data,
 233                                      ugeth->ug_info->uf_info.max_rx_buf_length +
 234                                      UCC_GETH_RX_DATA_BUF_ALIGNMENT,
 235                                      DMA_FROM_DEVICE));
 236
 237         out_be32((u32 *)bd, (R_E | R_I | (in_be32((u32 *)bd) & R_W)));
 238
 239         return skb;
 240 }
 241
 242 static int rx_bd_buffer_set(struct ucc_geth_private *ugeth, u8 rxQ)
 243 {
 244         u8 *bd;
 245         u32 bd_status;
 246         struct sk_buff *skb;
 247         int i;
 248
 249         bd = ugeth->p_rx_bd_ring[rxQ];
 250         i = 0;
 251
 252         do {
 253                 bd_status = in_be32((u32*)bd);
 254                 skb = get_new_skb(ugeth, bd);
 255
 256                 if (!skb)       /* If can not allocate data buffer,
 257                                 abort. Cleanup will be elsewhere */
 258                         return -ENOMEM;
 259
 260                 ugeth->rx_skbuff[rxQ][i] = skb;
 261
 262                 /* advance the BD pointer */
 263                 bd += sizeof(struct qe_bd);
 264                 i++;
 265         } while (!(bd_status & R_W));
 266
 267         return 0;
 268 }
 269
 270 static int fill_init_enet_entries(struct ucc_geth_private *ugeth,
 271                                   volatile u32 *p_start,
 272                                   u8 num_entries,
 273                                   u32 thread_size,
 274                                   u32 thread_alignment,
 275                                   enum qe_risc_allocation risc,
 276                                   int skip_page_for_first_entry)
 277 {
 278         u32 init_enet_offset;
 279         u8 i;
 280         int snum;
 281
 282         for (i = 0; i < num_entries; i++) {
 283                 if ((snum = qe_get_snum()) < 0) {
 284                         ugeth_err("fill_init_enet_entries: Can not get SNUM.");
 285                         return snum;
 286                 }
 287                 if ((i == 0) && skip_page_for_first_entry)
 288                 /* First entry of Rx does not have page */
 289                         init_enet_offset = 0;
 290                 else {
 291                         init_enet_offset =
 292                             qe_muram_alloc(thread_size, thread_alignment);
 293                         if (IS_ERR_VALUE(init_enet_offset)) {
 294                                 ugeth_err
 295                 ("fill_init_enet_entries: Can not allocate DPRAM memory.");
 296                                 qe_put_snum((u8) snum);
 297                                 return -ENOMEM;
 298                         }
 299                 }
 300                 *(p_start++) =
 301                     ((u8) snum << ENET_INIT_PARAM_SNUM_SHIFT) | init_enet_offset
 302                     | risc;
 303         }
 304
 305         return 0;
 306 }
 307
 308 static int return_init_enet_entries(struct ucc_geth_private *ugeth,
 309                                     volatile u32 *p_start,
 310                                     u8 num_entries,
 311                                     enum qe_risc_allocation risc,
 312                                     int skip_page_for_first_entry)
 313 {
 314         u32 init_enet_offset;
 315         u8 i;
 316         int snum;
 317
 318         for (i = 0; i < num_entries; i++) {
 319                 /* Check that this entry was actually valid --
 320                 needed in case failed in allocations */
 321                 if ((*p_start & ENET_INIT_PARAM_RISC_MASK) == risc) {
 322                         snum =
 323                             (u32) (*p_start & ENET_INIT_PARAM_SNUM_MASK) >>
 324                             ENET_INIT_PARAM_SNUM_SHIFT;
 325                         qe_put_snum((u8) snum);
 326                         if (!((i == 0) && skip_page_for_first_entry)) {
 327                         /* First entry of Rx does not have page */
 328                                 init_enet_offset =
 329                                     (in_be32(p_start) &
 330                                      ENET_INIT_PARAM_PTR_MASK);
 331                                 qe_muram_free(init_enet_offset);
 332                         }
 333                         *(p_start++) = 0;       /* Just for cosmetics */
 334                 }
 335         }
 336
 337         return 0;
 338 }
 339
 340 #ifdef DEBUG
 341 static int dump_init_enet_entries(struct ucc_geth_private *ugeth,
 342                                   volatile u32 *p_start,
 343                                   u8 num_entries,
 344                                   u32 thread_size,
 345                                   enum qe_risc_allocation risc,
 346                                   int skip_page_for_first_entry)
 347 {
 348         u32 init_enet_offset;
 349         u8 i;
 350         int snum;
 351
 352         for (i = 0; i < num_entries; i++) {
 353                 /* Check that this entry was actually valid --
 354                 needed in case failed in allocations */
 355                 if ((*p_start & ENET_INIT_PARAM_RISC_MASK) == risc) {
 356                         snum =
 357                             (u32) (*p_start & ENET_INIT_PARAM_SNUM_MASK) >>
 358                             ENET_INIT_PARAM_SNUM_SHIFT;
 359                         qe_put_snum((u8) snum);
 360                         if (!((i == 0) && skip_page_for_first_entry)) {
 361                         /* First entry of Rx does not have page */
 362                                 init_enet_offset =
 363                                     (in_be32(p_start) &
 364                                      ENET_INIT_PARAM_PTR_MASK);
 365                                 ugeth_info("Init enet entry %d:", i);
 366                                 ugeth_info("Base address: 0x%08x",
 367                                            (u32)
 368                                            qe_muram_addr(init_enet_offset));
 369                                 mem_disp(qe_muram_addr(init_enet_offset),
 370                                          thread_size);
 371                         }
 372                         p_start++;
 373                 }
 374         }
 375
 376         return 0;
 377 }
 378 #endif
 379
 380 #ifdef CONFIG_UGETH_FILTERING
 381 static struct enet_addr_container *get_enet_addr_container(void)
 382 {
 383         struct enet_addr_container *enet_addr_cont;
 384
 385         /* allocate memory */
 386         enet_addr_cont = kmalloc(sizeof(struct enet_addr_container), GFP_KERNEL);
 387         if (!enet_addr_cont) {
 388                 ugeth_err("%s: No memory for enet_addr_container object.",
 389                           __FUNCTION__);
 390                 return NULL;
 391         }
 392
 393         return enet_addr_cont;
 394 }
 395 #endif /* CONFIG_UGETH_FILTERING */
 396
 397 static void put_enet_addr_container(struct enet_addr_container *enet_addr_cont)
 398 {
 399         kfree(enet_addr_cont);
 400 }
 401
 402 static void set_mac_addr(__be16 __iomem *reg, u8 *mac)
 403 {
 404         out_be16(&reg[0], ((u16)mac[5] << 8) | mac[4]);
 405         out_be16(&reg[1], ((u16)mac[3] << 8) | mac[2]);
 406         out_be16(&reg[2], ((u16)mac[1] << 8) | mac[0]);
 407 }
 408
 409 #ifdef CONFIG_UGETH_FILTERING
 410 static int hw_add_addr_in_paddr(struct ucc_geth_private *ugeth,
 411                                 u8 *p_enet_addr, u8 paddr_num)
 412 {
 413         struct ucc_geth_82xx_address_filtering_pram *p_82xx_addr_filt;
 414
 415         if (!(paddr_num < NUM_OF_PADDRS)) {
 416                 ugeth_warn("%s: Illegal paddr_num.", __FUNCTION__);
 417                 return -EINVAL;
 418         }
 419
 420         p_82xx_addr_filt =
 421             (struct ucc_geth_82xx_address_filtering_pram *) ugeth->p_rx_glbl_pram->
 422             addressfiltering;
 423
 424         /* Ethernet frames are defined in Little Endian mode,    */
 425         /* therefore to insert the address we reverse the bytes. */
 426         set_mac_addr(&p_82xx_addr_filt->paddr[paddr_num].h, p_enet_addr);
 427         return 0;
 428 }
 429 #endif /* CONFIG_UGETH_FILTERING */
 430
 431 static int hw_clear_addr_in_paddr(struct ucc_geth_private *ugeth, u8 paddr_num)
 432 {
 433         struct ucc_geth_82xx_address_filtering_pram *p_82xx_addr_filt;
 434
 435         if (!(paddr_num < NUM_OF_PADDRS)) {
 436                 ugeth_warn("%s: Illagel paddr_num.", __FUNCTION__);
 437                 return -EINVAL;
 438         }
 439
 440         p_82xx_addr_filt =
 441             (struct ucc_geth_82xx_address_filtering_pram *) ugeth->p_rx_glbl_pram->
 442             addressfiltering;
 443
 444         /* Writing address ff.ff.ff.ff.ff.ff disables address
 445         recognition for this register */
 446         out_be16(&p_82xx_addr_filt->paddr[paddr_num].h, 0xffff);
 447         out_be16(&p_82xx_addr_filt->paddr[paddr_num].m, 0xffff);
 448         out_be16(&p_82xx_addr_filt->paddr[paddr_num].l, 0xffff);
 449
 450         return 0;
 451 }
 452
 453 static void hw_add_addr_in_hash(struct ucc_geth_private *ugeth,
 454                                 u8 *p_enet_addr)
 455 {
 456         struct ucc_geth_82xx_address_filtering_pram *p_82xx_addr_filt;
 457         u32 cecr_subblock;
 458
 459         p_82xx_addr_filt =
 460             (struct ucc_geth_82xx_address_filtering_pram *) ugeth->p_rx_glbl_pram->
 461             addressfiltering;
 462
 463         cecr_subblock =
 464             ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
 465
 466         /* Ethernet frames are defined in Little Endian mode,
 467         therefor to insert */
 468         /* the address to the hash (Big Endian mode), we reverse the bytes.*/
 469
 470         set_mac_addr(&p_82xx_addr_filt->taddr.h, p_enet_addr);
 471
 472         qe_issue_cmd(QE_SET_GROUP_ADDRESS, cecr_subblock,
 473                      QE_CR_PROTOCOL_ETHERNET, 0);
 474 }
 475
 476 #ifdef CONFIG_UGETH_MAGIC_PACKET
 477 static void magic_packet_detection_enable(struct ucc_geth_private *ugeth)
 478 {
 479         struct ucc_fast_private *uccf;
 480         struct ucc_geth *ug_regs;
 481         u32 maccfg2, uccm;
 482
 483         uccf = ugeth->uccf;
 484         ug_regs = ugeth->ug_regs;
 485
 486         /* Enable interrupts for magic packet detection */
 487         uccm = in_be32(uccf->p_uccm);
 488         uccm |= UCCE_MPD;
 489         out_be32(uccf->p_uccm, uccm);
 490
 491         /* Enable magic packet detection */
 492         maccfg2 = in_be32(&ug_regs->maccfg2);
 493         maccfg2 |= MACCFG2_MPE;
 494         out_be32(&ug_regs->maccfg2, maccfg2);
 495 }
 496
 497 static void magic_packet_detection_disable(struct ucc_geth_private *ugeth)
 498 {
 499         struct ucc_fast_private *uccf;
 500         struct ucc_geth *ug_regs;
 501         u32 maccfg2, uccm;
 502
 503         uccf = ugeth->uccf;
 504         ug_regs = ugeth->ug_regs;
 505
 506         /* Disable interrupts for magic packet detection */
 507         uccm = in_be32(uccf->p_uccm);
 508         uccm &= ~UCCE_MPD;
 509         out_be32(uccf->p_uccm, uccm);
 510
 511         /* Disable magic packet detection */
 512         maccfg2 = in_be32(&ug_regs->maccfg2);
 513         maccfg2 &= ~MACCFG2_MPE;
 514         out_be32(&ug_regs->maccfg2, maccfg2);
 515 }
 516 #endif /* MAGIC_PACKET */
 517
 518 static inline int compare_addr(u8 **addr1, u8 **addr2)
 519 {
 520         return memcmp(addr1, addr2, ENET_NUM_OCTETS_PER_ADDRESS);
 521 }
 522
 523 #ifdef DEBUG
 524 static void get_statistics(struct ucc_geth_private *ugeth,
 525                            struct ucc_geth_tx_firmware_statistics *
 526                            tx_firmware_statistics,
 527                            struct ucc_geth_rx_firmware_statistics *
 528                            rx_firmware_statistics,
 529                            struct ucc_geth_hardware_statistics *hardware_statistics)
 530 {
 531         struct ucc_fast *uf_regs;
 532         struct ucc_geth *ug_regs;
 533         struct ucc_geth_tx_firmware_statistics_pram *p_tx_fw_statistics_pram;
 534         struct ucc_geth_rx_firmware_statistics_pram *p_rx_fw_statistics_pram;
 535
 536         ug_regs = ugeth->ug_regs;
 537         uf_regs = (struct ucc_fast *) ug_regs;
 538         p_tx_fw_statistics_pram = ugeth->p_tx_fw_statistics_pram;
 539         p_rx_fw_statistics_pram = ugeth->p_rx_fw_statistics_pram;
 540
 541         /* Tx firmware only if user handed pointer and driver actually
 542         gathers Tx firmware statistics */
 543         if (tx_firmware_statistics && p_tx_fw_statistics_pram) {
 544                 tx_firmware_statistics->sicoltx =
 545                     in_be32(&p_tx_fw_statistics_pram->sicoltx);
 546                 tx_firmware_statistics->mulcoltx =
 547                     in_be32(&p_tx_fw_statistics_pram->mulcoltx);
 548                 tx_firmware_statistics->latecoltxfr =
 549                     in_be32(&p_tx_fw_statistics_pram->latecoltxfr);
 550                 tx_firmware_statistics->frabortduecol =
 551                     in_be32(&p_tx_fw_statistics_pram->frabortduecol);
 552                 tx_firmware_statistics->frlostinmactxer =
 553                     in_be32(&p_tx_fw_statistics_pram->frlostinmactxer);
 554                 tx_firmware_statistics->carriersenseertx =
 555                     in_be32(&p_tx_fw_statistics_pram->carriersenseertx);
 556                 tx_firmware_statistics->frtxok =
 557                     in_be32(&p_tx_fw_statistics_pram->frtxok);
 558                 tx_firmware_statistics->txfrexcessivedefer =
 559                     in_be32(&p_tx_fw_statistics_pram->txfrexcessivedefer);
 560                 tx_firmware_statistics->txpkts256 =
 561                     in_be32(&p_tx_fw_statistics_pram->txpkts256);
 562                 tx_firmware_statistics->txpkts512 =
 563                     in_be32(&p_tx_fw_statistics_pram->txpkts512);
 564                 tx_firmware_statistics->txpkts1024 =
 565                     in_be32(&p_tx_fw_statistics_pram->txpkts1024);
 566                 tx_firmware_statistics->txpktsjumbo =
 567                     in_be32(&p_tx_fw_statistics_pram->txpktsjumbo);
 568         }
 569
 570         /* Rx firmware only if user handed pointer and driver actually
 571          * gathers Rx firmware statistics */
 572         if (rx_firmware_statistics && p_rx_fw_statistics_pram) {
 573                 int i;
 574                 rx_firmware_statistics->frrxfcser =
 575                     in_be32(&p_rx_fw_statistics_pram->frrxfcser);
 576                 rx_firmware_statistics->fraligner =
 577                     in_be32(&p_rx_fw_statistics_pram->fraligner);
 578                 rx_firmware_statistics->inrangelenrxer =
 579                     in_be32(&p_rx_fw_statistics_pram->inrangelenrxer);
 580                 rx_firmware_statistics->outrangelenrxer =
 581                     in_be32(&p_rx_fw_statistics_pram->outrangelenrxer);
 582                 rx_firmware_statistics->frtoolong =
 583                     in_be32(&p_rx_fw_statistics_pram->frtoolong);
 584                 rx_firmware_statistics->runt =
 585                     in_be32(&p_rx_fw_statistics_pram->runt);
 586                 rx_firmware_statistics->verylongevent =
 587                     in_be32(&p_rx_fw_statistics_pram->verylongevent);
 588                 rx_firmware_statistics->symbolerror =
 589                     in_be32(&p_rx_fw_statistics_pram->symbolerror);
 590                 rx_firmware_statistics->dropbsy =
 591                     in_be32(&p_rx_fw_statistics_pram->dropbsy);
 592                 for (i = 0; i < 0x8; i++)
 593                         rx_firmware_statistics->res0[i] =
 594                             p_rx_fw_statistics_pram->res0[i];
 595                 rx_firmware_statistics->mismatchdrop =
 596                     in_be32(&p_rx_fw_statistics_pram->mismatchdrop);
 597                 rx_firmware_statistics->underpkts =
 598                     in_be32(&p_rx_fw_statistics_pram->underpkts);
 599                 rx_firmware_statistics->pkts256 =
 600                     in_be32(&p_rx_fw_statistics_pram->pkts256);
 601                 rx_firmware_statistics->pkts512 =
 602                     in_be32(&p_rx_fw_statistics_pram->pkts512);
 603                 rx_firmware_statistics->pkts1024 =
 604                     in_be32(&p_rx_fw_statistics_pram->pkts1024);
 605                 rx_firmware_statistics->pktsjumbo =
 606                     in_be32(&p_rx_fw_statistics_pram->pktsjumbo);
 607                 rx_firmware_statistics->frlossinmacer =
 608                     in_be32(&p_rx_fw_statistics_pram->frlossinmacer);
 609                 rx_firmware_statistics->pausefr =
 610                     in_be32(&p_rx_fw_statistics_pram->pausefr);
 611                 for (i = 0; i < 0x4; i++)
 612                         rx_firmware_statistics->res1[i] =
 613                             p_rx_fw_statistics_pram->res1[i];
 614                 rx_firmware_statistics->removevlan =
 615                     in_be32(&p_rx_fw_statistics_pram->removevlan);
 616                 rx_firmware_statistics->replacevlan =
 617                     in_be32(&p_rx_fw_statistics_pram->replacevlan);
 618                 rx_firmware_statistics->insertvlan =
 619                     in_be32(&p_rx_fw_statistics_pram->insertvlan);
 620         }
 621
 622         /* Hardware only if user handed pointer and driver actually
 623         gathers hardware statistics */
 624         if (hardware_statistics && (in_be32(&uf_regs->upsmr) & UPSMR_HSE)) {
 625                 hardware_statistics->tx64 = in_be32(&ug_regs->tx64);
 626                 hardware_statistics->tx127 = in_be32(&ug_regs->tx127);
 627                 hardware_statistics->tx255 = in_be32(&ug_regs->tx255);
 628                 hardware_statistics->rx64 = in_be32(&ug_regs->rx64);
 629                 hardware_statistics->rx127 = in_be32(&ug_regs->rx127);
 630                 hardware_statistics->rx255 = in_be32(&ug_regs->rx255);
 631                 hardware_statistics->txok = in_be32(&ug_regs->txok);
 632                 hardware_statistics->txcf = in_be16(&ug_regs->txcf);
 633                 hardware_statistics->tmca = in_be32(&ug_regs->tmca);
 634                 hardware_statistics->tbca = in_be32(&ug_regs->tbca);
 635                 hardware_statistics->rxfok = in_be32(&ug_regs->rxfok);
 636                 hardware_statistics->rxbok = in_be32(&ug_regs->rxbok);
 637                 hardware_statistics->rbyt = in_be32(&ug_regs->rbyt);
 638                 hardware_statistics->rmca = in_be32(&ug_regs->rmca);
 639                 hardware_statistics->rbca = in_be32(&ug_regs->rbca);
 640         }
 641 }
 642
 643 static void dump_bds(struct ucc_geth_private *ugeth)
 644 {
 645         int i;
 646         int length;
 647
 648         for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) {
 649                 if (ugeth->p_tx_bd_ring[i]) {
 650                         length =
 651                             (ugeth->ug_info->bdRingLenTx[i] *
 652                              sizeof(struct qe_bd));
 653                         ugeth_info("TX BDs[%d]", i);
 654                         mem_disp(ugeth->p_tx_bd_ring[i], length);
 655                 }
 656         }
 657         for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
 658                 if (ugeth->p_rx_bd_ring[i]) {
 659                         length =
 660                             (ugeth->ug_info->bdRingLenRx[i] *
 661                              sizeof(struct qe_bd));
 662                         ugeth_info("RX BDs[%d]", i);
 663                         mem_disp(ugeth->p_rx_bd_ring[i], length);
 664                 }
 665         }
 666 }
 667
 668 static void dump_regs(struct ucc_geth_private *ugeth)
 669 {
 670         int i;
 671
 672         ugeth_info("UCC%d Geth registers:", ugeth->ug_info->uf_info.ucc_num);
 673         ugeth_info("Base address: 0x%08x", (u32) ugeth->ug_regs);
 674
 675         ugeth_info("maccfg1    : addr - 0x%08x, val - 0x%08x",
 676                    (u32) & ugeth->ug_regs->maccfg1,
 677                    in_be32(&ugeth->ug_regs->maccfg1));
 678         ugeth_info("maccfg2    : addr - 0x%08x, val - 0x%08x",
 679                    (u32) & ugeth->ug_regs->maccfg2,
 680                    in_be32(&ugeth->ug_regs->maccfg2));
 681         ugeth_info("ipgifg     : addr - 0x%08x, val - 0x%08x",
 682                    (u32) & ugeth->ug_regs->ipgifg,
 683                    in_be32(&ugeth->ug_regs->ipgifg));
 684         ugeth_info("hafdup     : addr - 0x%08x, val - 0x%08x",
 685                    (u32) & ugeth->ug_regs->hafdup,
 686                    in_be32(&ugeth->ug_regs->hafdup));
 687         ugeth_info("ifctl      : addr - 0x%08x, val - 0x%08x",
 688                    (u32) & ugeth->ug_regs->ifctl,
 689                    in_be32(&ugeth->ug_regs->ifctl));
 690         ugeth_info("ifstat     : addr - 0x%08x, val - 0x%08x",
 691                    (u32) & ugeth->ug_regs->ifstat,
 692                    in_be32(&ugeth->ug_regs->ifstat));
 693         ugeth_info("macstnaddr1: addr - 0x%08x, val - 0x%08x",
 694                    (u32) & ugeth->ug_regs->macstnaddr1,
 695                    in_be32(&ugeth->ug_regs->macstnaddr1));
 696         ugeth_info("macstnaddr2: addr - 0x%08x, val - 0x%08x",
 697                    (u32) & ugeth->ug_regs->macstnaddr2,
 698                    in_be32(&ugeth->ug_regs->macstnaddr2));
 699         ugeth_info("uempr      : addr - 0x%08x, val - 0x%08x",
 700                    (u32) & ugeth->ug_regs->uempr,
 701                    in_be32(&ugeth->ug_regs->uempr));
 702         ugeth_info("utbipar    : addr - 0x%08x, val - 0x%08x",
 703                    (u32) & ugeth->ug_regs->utbipar,
 704                    in_be32(&ugeth->ug_regs->utbipar));
 705         ugeth_info("uescr      : addr - 0x%08x, val - 0x%04x",
 706                    (u32) & ugeth->ug_regs->uescr,
 707                    in_be16(&ugeth->ug_regs->uescr));
 708         ugeth_info("tx64       : addr - 0x%08x, val - 0x%08x",
 709                    (u32) & ugeth->ug_regs->tx64,
 710                    in_be32(&ugeth->ug_regs->tx64));
 711         ugeth_info("tx127      : addr - 0x%08x, val - 0x%08x",
 712                    (u32) & ugeth->ug_regs->tx127,
 713                    in_be32(&ugeth->ug_regs->tx127));
 714         ugeth_info("tx255      : addr - 0x%08x, val - 0x%08x",
 715                    (u32) & ugeth->ug_regs->tx255,
 716                    in_be32(&ugeth->ug_regs->tx255));
 717         ugeth_info("rx64       : addr - 0x%08x, val - 0x%08x",
 718                    (u32) & ugeth->ug_regs->rx64,
 719                    in_be32(&ugeth->ug_regs->rx64));
 720         ugeth_info("rx127      : addr - 0x%08x, val - 0x%08x",
 721                    (u32) & ugeth->ug_regs->rx127,
 722                    in_be32(&ugeth->ug_regs->rx127));
 723         ugeth_info("rx255      : addr - 0x%08x, val - 0x%08x",
 724                    (u32) & ugeth->ug_regs->rx255,
 725                    in_be32(&ugeth->ug_regs->rx255));
 726         ugeth_info("txok       : addr - 0x%08x, val - 0x%08x",
 727                    (u32) & ugeth->ug_regs->txok,
 728                    in_be32(&ugeth->ug_regs->txok));
 729         ugeth_info("txcf       : addr - 0x%08x, val - 0x%04x",
 730                    (u32) & ugeth->ug_regs->txcf,
 731                    in_be16(&ugeth->ug_regs->txcf));
 732         ugeth_info("tmca       : addr - 0x%08x, val - 0x%08x",
 733                    (u32) & ugeth->ug_regs->tmca,
 734                    in_be32(&ugeth->ug_regs->tmca));
 735         ugeth_info("tbca       : addr - 0x%08x, val - 0x%08x",
 736                    (u32) & ugeth->ug_regs->tbca,
 737                    in_be32(&ugeth->ug_regs->tbca));
 738         ugeth_info("rxfok      : addr - 0x%08x, val - 0x%08x",
 739                    (u32) & ugeth->ug_regs->rxfok,
 740                    in_be32(&ugeth->ug_regs->rxfok));
 741         ugeth_info("rxbok      : addr - 0x%08x, val - 0x%08x",
 742                    (u32) & ugeth->ug_regs->rxbok,
 743                    in_be32(&ugeth->ug_regs->rxbok));
 744         ugeth_info("rbyt       : addr - 0x%08x, val - 0x%08x",
 745                    (u32) & ugeth->ug_regs->rbyt,
 746                    in_be32(&ugeth->ug_regs->rbyt));
 747         ugeth_info("rmca       : addr - 0x%08x, val - 0x%08x",
 748                    (u32) & ugeth->ug_regs->rmca,
 749                    in_be32(&ugeth->ug_regs->rmca));
 750         ugeth_info("rbca       : addr - 0x%08x, val - 0x%08x",
 751                    (u32) & ugeth->ug_regs->rbca,
 752                    in_be32(&ugeth->ug_regs->rbca));
 753         ugeth_info("scar       : addr - 0x%08x, val - 0x%08x",
 754                    (u32) & ugeth->ug_regs->scar,
 755                    in_be32(&ugeth->ug_regs->scar));
 756         ugeth_info("scam       : addr - 0x%08x, val - 0x%08x",
 757                    (u32) & ugeth->ug_regs->scam,
 758                    in_be32(&ugeth->ug_regs->scam));
 759
 760         if (ugeth->p_thread_data_tx) {
 761                 int numThreadsTxNumerical;
 762                 switch (ugeth->ug_info->numThreadsTx) {
 763                 case UCC_GETH_NUM_OF_THREADS_1:
 764                         numThreadsTxNumerical = 1;
 765                         break;
 766                 case UCC_GETH_NUM_OF_THREADS_2:
 767                         numThreadsTxNumerical = 2;
 768                         break;
 769                 case UCC_GETH_NUM_OF_THREADS_4:
 770                         numThreadsTxNumerical = 4;
 771                         break;
 772                 case UCC_GETH_NUM_OF_THREADS_6:
 773                         numThreadsTxNumerical = 6;
 774                         break;
 775                 case UCC_GETH_NUM_OF_THREADS_8:
 776                         numThreadsTxNumerical = 8;
 777                         break;
 778                 default:
 779                         numThreadsTxNumerical = 0;
 780                         break;
 781                 }
 782
 783                 ugeth_info("Thread data TXs:");
 784                 ugeth_info("Base address: 0x%08x",
 785                            (u32) ugeth->p_thread_data_tx);
 786                 for (i = 0; i < numThreadsTxNumerical; i++) {
 787                         ugeth_info("Thread data TX[%d]:", i);
 788                         ugeth_info("Base address: 0x%08x",
 789                                    (u32) & ugeth->p_thread_data_tx[i]);
 790                         mem_disp((u8 *) & ugeth->p_thread_data_tx[i],
 791                                  sizeof(struct ucc_geth_thread_data_tx));
 792                 }
 793         }
 794         if (ugeth->p_thread_data_rx) {
 795                 int numThreadsRxNumerical;
 796                 switch (ugeth->ug_info->numThreadsRx) {
 797                 case UCC_GETH_NUM_OF_THREADS_1:
 798                         numThreadsRxNumerical = 1;
 799                         break;
 800                 case UCC_GETH_NUM_OF_THREADS_2:
 801                         numThreadsRxNumerical = 2;
 802                         break;
 803                 case UCC_GETH_NUM_OF_THREADS_4:
 804                         numThreadsRxNumerical = 4;
 805                         break;
 806                 case UCC_GETH_NUM_OF_THREADS_6:
 807                         numThreadsRxNumerical = 6;
 808                         break;
 809                 case UCC_GETH_NUM_OF_THREADS_8:
 810                         numThreadsRxNumerical = 8;
 811                         break;
 812                 default:
 813                         numThreadsRxNumerical = 0;
 814                         break;
 815                 }
 816
 817                 ugeth_info("Thread data RX:");
 818                 ugeth_info("Base address: 0x%08x",
 819                            (u32) ugeth->p_thread_data_rx);
 820                 for (i = 0; i < numThreadsRxNumerical; i++) {
 821                         ugeth_info("Thread data RX[%d]:", i);
 822                         ugeth_info("Base address: 0x%08x",
 823                                    (u32) & ugeth->p_thread_data_rx[i]);
 824                         mem_disp((u8 *) & ugeth->p_thread_data_rx[i],
 825                                  sizeof(struct ucc_geth_thread_data_rx));
 826                 }
 827         }
 828         if (ugeth->p_exf_glbl_param) {
 829                 ugeth_info("EXF global param:");
 830                 ugeth_info("Base address: 0x%08x",
 831                            (u32) ugeth->p_exf_glbl_param);
 832                 mem_disp((u8 *) ugeth->p_exf_glbl_param,
 833                          sizeof(*ugeth->p_exf_glbl_param));
 834         }
 835         if (ugeth->p_tx_glbl_pram) {
 836                 ugeth_info("TX global param:");
 837                 ugeth_info("Base address: 0x%08x", (u32) ugeth->p_tx_glbl_pram);
 838                 ugeth_info("temoder      : addr - 0x%08x, val - 0x%04x",
 839                            (u32) & ugeth->p_tx_glbl_pram->temoder,
 840                            in_be16(&ugeth->p_tx_glbl_pram->temoder));
 841                 ugeth_info("sqptr        : addr - 0x%08x, val - 0x%08x",
 842                            (u32) & ugeth->p_tx_glbl_pram->sqptr,
 843                            in_be32(&ugeth->p_tx_glbl_pram->sqptr));
 844                 ugeth_info("schedulerbasepointer: addr - 0x%08x, val - 0x%08x",
 845                            (u32) & ugeth->p_tx_glbl_pram->schedulerbasepointer,
 846                            in_be32(&ugeth->p_tx_glbl_pram->
 847                                    schedulerbasepointer));
 848                 ugeth_info("txrmonbaseptr: addr - 0x%08x, val - 0x%08x",
 849                            (u32) & ugeth->p_tx_glbl_pram->txrmonbaseptr,
 850                            in_be32(&ugeth->p_tx_glbl_pram->txrmonbaseptr));
 851                 ugeth_info("tstate       : addr - 0x%08x, val - 0x%08x",
 852                            (u32) & ugeth->p_tx_glbl_pram->tstate,
 853                            in_be32(&ugeth->p_tx_glbl_pram->tstate));
 854                 ugeth_info("iphoffset[0] : addr - 0x%08x, val - 0x%02x",
 855                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[0],
 856                            ugeth->p_tx_glbl_pram->iphoffset[0]);
 857                 ugeth_info("iphoffset[1] : addr - 0x%08x, val - 0x%02x",
 858                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[1],
 859                            ugeth->p_tx_glbl_pram->iphoffset[1]);
 860                 ugeth_info("iphoffset[2] : addr - 0x%08x, val - 0x%02x",
 861                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[2],
 862                            ugeth->p_tx_glbl_pram->iphoffset[2]);
 863                 ugeth_info("iphoffset[3] : addr - 0x%08x, val - 0x%02x",
 864                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[3],
 865                            ugeth->p_tx_glbl_pram->iphoffset[3]);
 866                 ugeth_info("iphoffset[4] : addr - 0x%08x, val - 0x%02x",
 867                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[4],
 868                            ugeth->p_tx_glbl_pram->iphoffset[4]);
 869                 ugeth_info("iphoffset[5] : addr - 0x%08x, val - 0x%02x",
 870                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[5],
 871                            ugeth->p_tx_glbl_pram->iphoffset[5]);
 872                 ugeth_info("iphoffset[6] : addr - 0x%08x, val - 0x%02x",
 873                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[6],
 874                            ugeth->p_tx_glbl_pram->iphoffset[6]);
 875                 ugeth_info("iphoffset[7] : addr - 0x%08x, val - 0x%02x",
 876                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[7],
 877                            ugeth->p_tx_glbl_pram->iphoffset[7]);
 878                 ugeth_info("vtagtable[0] : addr - 0x%08x, val - 0x%08x",
 879                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[0],
 880                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[0]));
 881                 ugeth_info("vtagtable[1] : addr - 0x%08x, val - 0x%08x",
 882                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[1],
 883                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[1]));
 884                 ugeth_info("vtagtable[2] : addr - 0x%08x, val - 0x%08x",
 885                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[2],
 886                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[2]));
 887                 ugeth_info("vtagtable[3] : addr - 0x%08x, val - 0x%08x",
 888                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[3],
 889                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[3]));
 890                 ugeth_info("vtagtable[4] : addr - 0x%08x, val - 0x%08x",
 891                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[4],
 892                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[4]));
 893                 ugeth_info("vtagtable[5] : addr - 0x%08x, val - 0x%08x",
 894                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[5],
 895                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[5]));
 896                 ugeth_info("vtagtable[6] : addr - 0x%08x, val - 0x%08x",
 897                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[6],
 898                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[6]));
 899                 ugeth_info("vtagtable[7] : addr - 0x%08x, val - 0x%08x",
 900                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[7],
 901                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[7]));
 902                 ugeth_info("tqptr        : addr - 0x%08x, val - 0x%08x",
 903                            (u32) & ugeth->p_tx_glbl_pram->tqptr,
 904                            in_be32(&ugeth->p_tx_glbl_pram->tqptr));
 905         }
 906         if (ugeth->p_rx_glbl_pram) {
 907                 ugeth_info("RX global param:");
 908                 ugeth_info("Base address: 0x%08x", (u32) ugeth->p_rx_glbl_pram);
 909                 ugeth_info("remoder         : addr - 0x%08x, val - 0x%08x",
 910                            (u32) & ugeth->p_rx_glbl_pram->remoder,
 911                            in_be32(&ugeth->p_rx_glbl_pram->remoder));
 912                 ugeth_info("rqptr           : addr - 0x%08x, val - 0x%08x",
 913                            (u32) & ugeth->p_rx_glbl_pram->rqptr,
 914                            in_be32(&ugeth->p_rx_glbl_pram->rqptr));
 915                 ugeth_info("typeorlen       : addr - 0x%08x, val - 0x%04x",
 916                            (u32) & ugeth->p_rx_glbl_pram->typeorlen,
 917                            in_be16(&ugeth->p_rx_glbl_pram->typeorlen));
 918                 ugeth_info("rxgstpack       : addr - 0x%08x, val - 0x%02x",
 919                            (u32) & ugeth->p_rx_glbl_pram->rxgstpack,
 920                            ugeth->p_rx_glbl_pram->rxgstpack);
 921                 ugeth_info("rxrmonbaseptr   : addr - 0x%08x, val - 0x%08x",
 922                            (u32) & ugeth->p_rx_glbl_pram->rxrmonbaseptr,
 923                            in_be32(&ugeth->p_rx_glbl_pram->rxrmonbaseptr));
 924                 ugeth_info("intcoalescingptr: addr - 0x%08x, val - 0x%08x",
 925                            (u32) & ugeth->p_rx_glbl_pram->intcoalescingptr,
 926                            in_be32(&ugeth->p_rx_glbl_pram->intcoalescingptr));
 927                 ugeth_info("rstate          : addr - 0x%08x, val - 0x%02x",
 928                            (u32) & ugeth->p_rx_glbl_pram->rstate,
 929                            ugeth->p_rx_glbl_pram->rstate);
 930                 ugeth_info("mrblr           : addr - 0x%08x, val - 0x%04x",
 931                            (u32) & ugeth->p_rx_glbl_pram->mrblr,
 932                            in_be16(&ugeth->p_rx_glbl_pram->mrblr));
 933                 ugeth_info("rbdqptr         : addr - 0x%08x, val - 0x%08x",
 934                            (u32) & ugeth->p_rx_glbl_pram->rbdqptr,
 935                            in_be32(&ugeth->p_rx_glbl_pram->rbdqptr));
 936                 ugeth_info("mflr            : addr - 0x%08x, val - 0x%04x",
 937                            (u32) & ugeth->p_rx_glbl_pram->mflr,
 938                            in_be16(&ugeth->p_rx_glbl_pram->mflr));
 939                 ugeth_info("minflr          : addr - 0x%08x, val - 0x%04x",
 940                            (u32) & ugeth->p_rx_glbl_pram->minflr,
 941                            in_be16(&ugeth->p_rx_glbl_pram->minflr));
 942                 ugeth_info("maxd1           : addr - 0x%08x, val - 0x%04x",
 943                            (u32) & ugeth->p_rx_glbl_pram->maxd1,
 944                            in_be16(&ugeth->p_rx_glbl_pram->maxd1));
 945                 ugeth_info("maxd2           : addr - 0x%08x, val - 0x%04x",
 946                            (u32) & ugeth->p_rx_glbl_pram->maxd2,
 947                            in_be16(&ugeth->p_rx_glbl_pram->maxd2));
 948                 ugeth_info("ecamptr         : addr - 0x%08x, val - 0x%08x",
 949                            (u32) & ugeth->p_rx_glbl_pram->ecamptr,
 950                            in_be32(&ugeth->p_rx_glbl_pram->ecamptr));
 951                 ugeth_info("l2qt            : addr - 0x%08x, val - 0x%08x",
 952                            (u32) & ugeth->p_rx_glbl_pram->l2qt,
 953                            in_be32(&ugeth->p_rx_glbl_pram->l2qt));
 954                 ugeth_info("l3qt[0]         : addr - 0x%08x, val - 0x%08x",
 955                            (u32) & ugeth->p_rx_glbl_pram->l3qt[0],
 956                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[0]));
 957                 ugeth_info("l3qt[1]         : addr - 0x%08x, val - 0x%08x",
 958                            (u32) & ugeth->p_rx_glbl_pram->l3qt[1],
 959                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[1]));
 960                 ugeth_info("l3qt[2]         : addr - 0x%08x, val - 0x%08x",
 961                            (u32) & ugeth->p_rx_glbl_pram->l3qt[2],
 962                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[2]));
 963                 ugeth_info("l3qt[3]         : addr - 0x%08x, val - 0x%08x",
 964                            (u32) & ugeth->p_rx_glbl_pram->l3qt[3],
 965                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[3]));
 966                 ugeth_info("l3qt[4]         : addr - 0x%08x, val - 0x%08x",
 967                            (u32) & ugeth->p_rx_glbl_pram->l3qt[4],
 968                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[4]));
 969                 ugeth_info("l3qt[5]         : addr - 0x%08x, val - 0x%08x",
 970                            (u32) & ugeth->p_rx_glbl_pram->l3qt[5],
 971                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[5]));
 972                 ugeth_info("l3qt[6]         : addr - 0x%08x, val - 0x%08x",
 973                            (u32) & ugeth->p_rx_glbl_pram->l3qt[6],
 974                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[6]));
 975                 ugeth_info("l3qt[7]         : addr - 0x%08x, val - 0x%08x",
 976                            (u32) & ugeth->p_rx_glbl_pram->l3qt[7],
 977                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[7]));
 978                 ugeth_info("vlantype        : addr - 0x%08x, val - 0x%04x",
 979                            (u32) & ugeth->p_rx_glbl_pram->vlantype,
 980                            in_be16(&ugeth->p_rx_glbl_pram->vlantype));
 981                 ugeth_info("vlantci         : addr - 0x%08x, val - 0x%04x",
 982                            (u32) & ugeth->p_rx_glbl_pram->vlantci,
 983                            in_be16(&ugeth->p_rx_glbl_pram->vlantci));
 984                 for (i = 0; i < 64; i++)
 985                         ugeth_info
 986                     ("addressfiltering[%d]: addr - 0x%08x, val - 0x%02x",
 987                              i,
 988                              (u32) & ugeth->p_rx_glbl_pram->addressfiltering[i],
 989                              ugeth->p_rx_glbl_pram->addressfiltering[i]);
 990                 ugeth_info("exfGlobalParam  : addr - 0x%08x, val - 0x%08x",
 991                            (u32) & ugeth->p_rx_glbl_pram->exfGlobalParam,
 992                            in_be32(&ugeth->p_rx_glbl_pram->exfGlobalParam));
 993         }
 994         if (ugeth->p_send_q_mem_reg) {
 995                 ugeth_info("Send Q memory registers:");
 996                 ugeth_info("Base address: 0x%08x",
 997                            (u32) ugeth->p_send_q_mem_reg);
 998                 for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) {
 999                         ugeth_info("SQQD[%d]:", i);
1000                         ugeth_info("Base address: 0x%08x",
1001                                    (u32) & ugeth->p_send_q_mem_reg->sqqd[i]);
1002                         mem_disp((u8 *) & ugeth->p_send_q_mem_reg->sqqd[i],
1003                                  sizeof(struct ucc_geth_send_queue_qd));
1004                 }
1005         }
1006         if (ugeth->p_scheduler) {
1007                 ugeth_info("Scheduler:");
1008                 ugeth_info("Base address: 0x%08x", (u32) ugeth->p_scheduler);
1009                 mem_disp((u8 *) ugeth->p_scheduler,
1010                          sizeof(*ugeth->p_scheduler));
1011         }
1012         if (ugeth->p_tx_fw_statistics_pram) {
1013                 ugeth_info("TX FW statistics pram:");
1014                 ugeth_info("Base address: 0x%08x",
1015                            (u32) ugeth->p_tx_fw_statistics_pram);
1016                 mem_disp((u8 *) ugeth->p_tx_fw_statistics_pram,
1017                          sizeof(*ugeth->p_tx_fw_statistics_pram));
1018         }
1019         if (ugeth->p_rx_fw_statistics_pram) {
1020                 ugeth_info("RX FW statistics pram:");
1021                 ugeth_info("Base address: 0x%08x",
1022                            (u32) ugeth->p_rx_fw_statistics_pram);
1023                 mem_disp((u8 *) ugeth->p_rx_fw_statistics_pram,
1024                          sizeof(*ugeth->p_rx_fw_statistics_pram));
1025         }
1026         if (ugeth->p_rx_irq_coalescing_tbl) {
1027                 ugeth_info("RX IRQ coalescing tables:");
1028                 ugeth_info("Base address: 0x%08x",
1029                            (u32) ugeth->p_rx_irq_coalescing_tbl);
1030                 for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
1031                         ugeth_info("RX IRQ coalescing table entry[%d]:", i);
1032                         ugeth_info("Base address: 0x%08x",
1033                                    (u32) & ugeth->p_rx_irq_coalescing_tbl->
1034                                    coalescingentry[i]);
1035                         ugeth_info
1036                 ("interruptcoalescingmaxvalue: addr - 0x%08x, val - 0x%08x",
1037                              (u32) & ugeth->p_rx_irq_coalescing_tbl->
1038                              coalescingentry[i].interruptcoalescingmaxvalue,
1039                              in_be32(&ugeth->p_rx_irq_coalescing_tbl->
1040                                      coalescingentry[i].
1041                                      interruptcoalescingmaxvalue));
1042                         ugeth_info
1043                 ("interruptcoalescingcounter : addr - 0x%08x, val - 0x%08x",
1044                              (u32) & ugeth->p_rx_irq_coalescing_tbl->
1045                              coalescingentry[i].interruptcoalescingcounter,
1046                              in_be32(&ugeth->p_rx_irq_coalescing_tbl->
1047                                      coalescingentry[i].
1048                                      interruptcoalescingcounter));
1049                 }
1050         }
1051         if (ugeth->p_rx_bd_qs_tbl) {
1052                 ugeth_info("RX BD QS tables:");
1053                 ugeth_info("Base address: 0x%08x", (u32) ugeth->p_rx_bd_qs_tbl);
1054                 for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
1055                         ugeth_info("RX BD QS table[%d]:", i);
1056                         ugeth_info("Base address: 0x%08x",
1057                                    (u32) & ugeth->p_rx_bd_qs_tbl[i]);
1058                         ugeth_info
1059                             ("bdbaseptr        : addr - 0x%08x, val - 0x%08x",
1060                              (u32) & ugeth->p_rx_bd_qs_tbl[i].bdbaseptr,
1061                              in_be32(&ugeth->p_rx_bd_qs_tbl[i].bdbaseptr));
1062                         ugeth_info
1063                             ("bdptr            : addr - 0x%08x, val - 0x%08x",
1064                              (u32) & ugeth->p_rx_bd_qs_tbl[i].bdptr,
1065                              in_be32(&ugeth->p_rx_bd_qs_tbl[i].bdptr));
1066                         ugeth_info
1067                             ("externalbdbaseptr: addr - 0x%08x, val - 0x%08x",
1068                              (u32) & ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
1069                              in_be32(&ugeth->p_rx_bd_qs_tbl[i].
1070                                      externalbdbaseptr));
1071                         ugeth_info
1072                             ("externalbdptr    : addr - 0x%08x, val - 0x%08x",
1073                              (u32) & ugeth->p_rx_bd_qs_tbl[i].externalbdptr,
1074                              in_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdptr));
1075                         ugeth_info("ucode RX Prefetched BDs:");
1076                         ugeth_info("Base address: 0x%08x",
1077                                    (u32)
1078                                    qe_muram_addr(in_be32
1079                                                  (&ugeth->p_rx_bd_qs_tbl[i].
1080                                                   bdbaseptr)));
1081                         mem_disp((u8 *)
1082                                  qe_muram_addr(in_be32
1083                                                (&ugeth->p_rx_bd_qs_tbl[i].
1084                                                 bdbaseptr)),
1085                                  sizeof(struct ucc_geth_rx_prefetched_bds));
1086                 }
1087         }
1088         if (ugeth->p_init_enet_param_shadow) {
1089                 int size;
1090                 ugeth_info("Init enet param shadow:");
1091                 ugeth_info("Base address: 0x%08x",
1092                            (u32) ugeth->p_init_enet_param_shadow);
1093                 mem_disp((u8 *) ugeth->p_init_enet_param_shadow,
1094                          sizeof(*ugeth->p_init_enet_param_shadow));
1095
1096                 size = sizeof(struct ucc_geth_thread_rx_pram);
1097                 if (ugeth->ug_info->rxExtendedFiltering) {
1098                         size +=
1099                             THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING;
1100                         if (ugeth->ug_info->largestexternallookupkeysize ==
1101                             QE_FLTR_TABLE_LOOKUP_KEY_SIZE_8_BYTES)
1102                                 size +=
1103                         THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_8;
1104                         if (ugeth->ug_info->largestexternallookupkeysize ==
1105                             QE_FLTR_TABLE_LOOKUP_KEY_SIZE_16_BYTES)
1106                                 size +=
1107                         THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_16;
1108                 }
1109
1110                 dump_init_enet_entries(ugeth,
1111                                        &(ugeth->p_init_enet_param_shadow->
1112                                          txthread[0]),
1113                                        ENET_INIT_PARAM_MAX_ENTRIES_TX,
1114                                        sizeof(struct ucc_geth_thread_tx_pram),
1115                                        ugeth->ug_info->riscTx, 0);
1116                 dump_init_enet_entries(ugeth,
1117                                        &(ugeth->p_init_enet_param_shadow->
1118                                          rxthread[0]),
1119                                        ENET_INIT_PARAM_MAX_ENTRIES_RX, size,
1120                                        ugeth->ug_info->riscRx, 1);
1121         }
1122 }
1123 #endif /* DEBUG */
1124
1125 static void init_default_reg_vals(volatile u32 *upsmr_register,
1126                                   volatile u32 *maccfg1_register,
1127                                   volatile u32 *maccfg2_register)
1128 {
1129         out_be32(upsmr_register, UCC_GETH_UPSMR_INIT);
1130         out_be32(maccfg1_register, UCC_GETH_MACCFG1_INIT);
1131         out_be32(maccfg2_register, UCC_GETH_MACCFG2_INIT);
1132 }
1133
1134 static int init_half_duplex_params(int alt_beb,
1135                                    int back_pressure_no_backoff,
1136                                    int no_backoff,
1137                                    int excess_defer,
1138                                    u8 alt_beb_truncation,
1139                                    u8 max_retransmissions,
1140                                    u8 collision_window,
1141                                    volatile u32 *hafdup_register)
1142 {
1143         u32 value = 0;
1144
1145         if ((alt_beb_truncation > HALFDUP_ALT_BEB_TRUNCATION_MAX) ||
1146             (max_retransmissions > HALFDUP_MAX_RETRANSMISSION_MAX) ||
1147             (collision_window > HALFDUP_COLLISION_WINDOW_MAX))
1148                 return -EINVAL;
1149
1150         value = (u32) (alt_beb_truncation << HALFDUP_ALT_BEB_TRUNCATION_SHIFT);
1151
1152         if (alt_beb)
1153                 value |= HALFDUP_ALT_BEB;
1154         if (back_pressure_no_backoff)
1155                 value |= HALFDUP_BACK_PRESSURE_NO_BACKOFF;
1156         if (no_backoff)
1157                 value |= HALFDUP_NO_BACKOFF;
1158         if (excess_defer)
1159                 value |= HALFDUP_EXCESSIVE_DEFER;
1160
1161         value |= (max_retransmissions << HALFDUP_MAX_RETRANSMISSION_SHIFT);
1162
1163         value |= collision_window;
1164
1165         out_be32(hafdup_register, value);
1166         return 0;
1167 }
1168
1169 static int init_inter_frame_gap_params(u8 non_btb_cs_ipg,
1170                                        u8 non_btb_ipg,
1171                                        u8 min_ifg,
1172                                        u8 btb_ipg,
1173                                        volatile u32 *ipgifg_register)
1174 {
1175         u32 value = 0;
1176
1177         /* Non-Back-to-back IPG part 1 should be <= Non-Back-to-back
1178         IPG part 2 */
1179         if (non_btb_cs_ipg > non_btb_ipg)
1180                 return -EINVAL;
1181
1182         if ((non_btb_cs_ipg > IPGIFG_NON_BACK_TO_BACK_IFG_PART1_MAX) ||
1183             (non_btb_ipg > IPGIFG_NON_BACK_TO_BACK_IFG_PART2_MAX) ||
1184             /*(min_ifg        > IPGIFG_MINIMUM_IFG_ENFORCEMENT_MAX) || */
1185             (btb_ipg > IPGIFG_BACK_TO_BACK_IFG_MAX))
1186                 return -EINVAL;
1187
1188         value |=
1189             ((non_btb_cs_ipg << IPGIFG_NON_BACK_TO_BACK_IFG_PART1_SHIFT) &
1190              IPGIFG_NBTB_CS_IPG_MASK);
1191         value |=
1192             ((non_btb_ipg << IPGIFG_NON_BACK_TO_BACK_IFG_PART2_SHIFT) &
1193              IPGIFG_NBTB_IPG_MASK);
1194         value |=
1195             ((min_ifg << IPGIFG_MINIMUM_IFG_ENFORCEMENT_SHIFT) &
1196              IPGIFG_MIN_IFG_MASK);
1197         value |= (btb_ipg & IPGIFG_BTB_IPG_MASK);
1198
1199         out_be32(ipgifg_register, value);
1200         return 0;
1201 }
1202
1203 static int init_flow_control_params(u32 automatic_flow_control_mode,
1204                                     int rx_flow_control_enable,
1205                                     int tx_flow_control_enable,
1206                                     u16 pause_period,
1207                                     u16 extension_field,
1208                                     volatile u32 *upsmr_register,
1209                                     volatile u32 *uempr_register,
1210                                     volatile u32 *maccfg1_register)
1211 {
1212         u32 value = 0;
1213
1214         /* Set UEMPR register */
1215         value = (u32) pause_period << UEMPR_PAUSE_TIME_VALUE_SHIFT;
1216         value |= (u32) extension_field << UEMPR_EXTENDED_PAUSE_TIME_VALUE_SHIFT;
1217         out_be32(uempr_register, value);
1218
1219         /* Set UPSMR register */
1220         value = in_be32(upsmr_register);
1221         value |= automatic_flow_control_mode;
1222         out_be32(upsmr_register, value);
1223
1224         value = in_be32(maccfg1_register);
1225         if (rx_flow_control_enable)
1226                 value |= MACCFG1_FLOW_RX;
1227         if (tx_flow_control_enable)
1228                 value |= MACCFG1_FLOW_TX;
1229         out_be32(maccfg1_register, value);
1230
1231         return 0;
1232 }
1233
1234 static int init_hw_statistics_gathering_mode(int enable_hardware_statistics,
1235                                              int auto_zero_hardware_statistics,
1236                                              volatile u32 *upsmr_register,
1237                                              volatile u16 *uescr_register)
1238 {
1239         u32 upsmr_value = 0;
1240         u16 uescr_value = 0;
1241         /* Enable hardware statistics gathering if requested */
1242         if (enable_hardware_statistics) {
1243                 upsmr_value = in_be32(upsmr_register);
1244                 upsmr_value |= UPSMR_HSE;
1245                 out_be32(upsmr_register, upsmr_value);
1246         }
1247
1248         /* Clear hardware statistics counters */
1249         uescr_value = in_be16(uescr_register);
1250         uescr_value |= UESCR_CLRCNT;
1251         /* Automatically zero hardware statistics counters on read,
1252         if requested */
1253         if (auto_zero_hardware_statistics)
1254                 uescr_value |= UESCR_AUTOZ;
1255         out_be16(uescr_register, uescr_value);
1256
1257         return 0;
1258 }
1259
1260 static int init_firmware_statistics_gathering_mode(int
1261                 enable_tx_firmware_statistics,
1262                 int enable_rx_firmware_statistics,
1263                 volatile u32 *tx_rmon_base_ptr,
1264                 u32 tx_firmware_statistics_structure_address,
1265                 volatile u32 *rx_rmon_base_ptr,
1266                 u32 rx_firmware_statistics_structure_address,
1267                 volatile u16 *temoder_register,
1268                 volatile u32 *remoder_register)
1269 {
1270         /* Note: this function does not check if */
1271         /* the parameters it receives are NULL   */
1272         u16 temoder_value;
1273         u32 remoder_value;
1274
1275         if (enable_tx_firmware_statistics) {
1276                 out_be32(tx_rmon_base_ptr,
1277                          tx_firmware_statistics_structure_address);
1278                 temoder_value = in_be16(temoder_register);
1279                 temoder_value |= TEMODER_TX_RMON_STATISTICS_ENABLE;
1280                 out_be16(temoder_register, temoder_value);
1281         }
1282
1283         if (enable_rx_firmware_statistics) {
1284                 out_be32(rx_rmon_base_ptr,
1285                          rx_firmware_statistics_structure_address);
1286                 remoder_value = in_be32(remoder_register);
1287                 remoder_value |= REMODER_RX_RMON_STATISTICS_ENABLE;
1288                 out_be32(remoder_register, remoder_value);
1289         }
1290
1291         return 0;
1292 }
1293
1294 static int init_mac_station_addr_regs(u8 address_byte_0,
1295                                       u8 address_byte_1,
1296                                       u8 address_byte_2,
1297                                       u8 address_byte_3,
1298                                       u8 address_byte_4,
1299                                       u8 address_byte_5,
1300                                       volatile u32 *macstnaddr1_register,
1301                                       volatile u32 *macstnaddr2_register)
1302 {
1303         u32 value = 0;
1304
1305         /* Example: for a station address of 0x12345678ABCD, */
1306         /* 0x12 is byte 0, 0x34 is byte 1 and so on and 0xCD is byte 5 */
1307
1308         /* MACSTNADDR1 Register: */
1309
1310         /* 0                      7   8                      15  */
1311         /* station address byte 5     station address byte 4     */
1312         /* 16                     23  24                     31  */
1313         /* station address byte 3     station address byte 2     */
1314         value |= (u32) ((address_byte_2 << 0) & 0x000000FF);
1315         value |= (u32) ((address_byte_3 << 8) & 0x0000FF00);
1316         value |= (u32) ((address_byte_4 << 16) & 0x00FF0000);
1317         value |= (u32) ((address_byte_5 << 24) & 0xFF000000);
1318
1319         out_be32(macstnaddr1_register, value);
1320
1321         /* MACSTNADDR2 Register: */
1322
1323         /* 0                      7   8                      15  */
1324         /* station address byte 1     station address byte 0     */
1325         /* 16                     23  24                     31  */
1326         /*         reserved                   reserved           */
1327         value = 0;
1328         value |= (u32) ((address_byte_0 << 16) & 0x00FF0000);
1329         value |= (u32) ((address_byte_1 << 24) & 0xFF000000);
1330
1331         out_be32(macstnaddr2_register, value);
1332
1333         return 0;
1334 }
1335
1336 static int init_check_frame_length_mode(int length_check,
1337                                         volatile u32 *maccfg2_register)
1338 {
1339         u32 value = 0;
1340
1341         value = in_be32(maccfg2_register);
1342
1343         if (length_check)
1344                 value |= MACCFG2_LC;
1345         else
1346                 value &= ~MACCFG2_LC;
1347
1348         out_be32(maccfg2_register, value);
1349         return 0;
1350 }
1351
1352 static int init_preamble_length(u8 preamble_length,
1353                                 volatile u32 *maccfg2_register)
1354 {
1355         u32 value = 0;
1356
1357         if ((preamble_length < 3) || (preamble_length > 7))
1358                 return -EINVAL;
1359
1360         value = in_be32(maccfg2_register);
1361         value &= ~MACCFG2_PREL_MASK;
1362         value |= (preamble_length << MACCFG2_PREL_SHIFT);
1363         out_be32(maccfg2_register, value);
1364         return 0;
1365 }
1366
1367 static int init_rx_parameters(int reject_broadcast,
1368                               int receive_short_frames,
1369                               int promiscuous, volatile u32 *upsmr_register)
1370 {
1371         u32 value = 0;
1372
1373         value = in_be32(upsmr_register);
1374
1375         if (reject_broadcast)
1376                 value |= UPSMR_BRO;
1377         else
1378                 value &= ~UPSMR_BRO;
1379
1380         if (receive_short_frames)
1381                 value |= UPSMR_RSH;
1382         else
1383                 value &= ~UPSMR_RSH;
1384
1385         if (promiscuous)
1386                 value |= UPSMR_PRO;
1387         else
1388                 value &= ~UPSMR_PRO;
1389
1390         out_be32(upsmr_register, value);
1391
1392         return 0;
1393 }
1394
1395 static int init_max_rx_buff_len(u16 max_rx_buf_len,
1396                                 volatile u16 *mrblr_register)
1397 {
1398         /* max_rx_buf_len value must be a multiple of 128 */
1399         if ((max_rx_buf_len == 0)
1400             || (max_rx_buf_len % UCC_GETH_MRBLR_ALIGNMENT))
1401                 return -EINVAL;
1402
1403         out_be16(mrblr_register, max_rx_buf_len);
1404         return 0;
1405 }
1406
1407 static int init_min_frame_len(u16 min_frame_length,
1408                               volatile u16 *minflr_register,
1409                               volatile u16 *mrblr_register)
1410 {
1411         u16 mrblr_value = 0;
1412
1413         mrblr_value = in_be16(mrblr_register);
1414         if (min_frame_length >= (mrblr_value - 4))
1415                 return -EINVAL;
1416
1417         out_be16(minflr_register, min_frame_length);
1418         return 0;
1419 }
1420
1421 static int adjust_enet_interface(struct ucc_geth_private *ugeth)
1422 {
1423         struct ucc_geth_info *ug_info;
1424         struct ucc_geth *ug_regs;
1425         struct ucc_fast *uf_regs;
1426         int ret_val;
1427         u32 upsmr, maccfg2, tbiBaseAddress;
1428         u16 value;
1429
1430         ugeth_vdbg("%s: IN", __FUNCTION__);
1431
1432         ug_info = ugeth->ug_info;
1433         ug_regs = ugeth->ug_regs;
1434         uf_regs = ugeth->uccf->uf_regs;
1435
1436         /*                    Set MACCFG2                    */
1437         maccfg2 = in_be32(&ug_regs->maccfg2);
1438         maccfg2 &= ~MACCFG2_INTERFACE_MODE_MASK;
1439         if ((ugeth->max_speed == SPEED_10) ||
1440             (ugeth->max_speed == SPEED_100))
1441                 maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
1442         else if (ugeth->max_speed == SPEED_1000)
1443                 maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE;
1444         maccfg2 |= ug_info->padAndCrc;
1445         out_be32(&ug_regs->maccfg2, maccfg2);
1446
1447         /*                    Set UPSMR                      */
1448         upsmr = in_be32(&uf_regs->upsmr);
1449         upsmr &= ~(UPSMR_RPM | UPSMR_R10M | UPSMR_TBIM | UPSMR_RMM);
1450         if ((ugeth->phy_interface == PHY_INTERFACE_MODE_RMII) ||
1451             (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII) ||
1452             (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_ID) ||
1453             (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1454                 upsmr |= UPSMR_RPM;
1455                 switch (ugeth->max_speed) {
1456                 case SPEED_10:
1457                         upsmr |= UPSMR_R10M;
1458                         /* FALLTHROUGH */
1459                 case SPEED_100:
1460                         if (ugeth->phy_interface != PHY_INTERFACE_MODE_RTBI)
1461                                 upsmr |= UPSMR_RMM;
1462                 }
1463         }
1464         if ((ugeth->phy_interface == PHY_INTERFACE_MODE_TBI) ||
1465             (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1466                 upsmr |= UPSMR_TBIM;
1467         }
1468         out_be32(&uf_regs->upsmr, upsmr);
1469
1470         /* Disable autonegotiation in tbi mode, because by default it
1471         comes up in autonegotiation mode. */
1472         /* Note that this depends on proper setting in utbipar register. */
1473         if ((ugeth->phy_interface == PHY_INTERFACE_MODE_TBI) ||
1474             (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1475                 tbiBaseAddress = in_be32(&ug_regs->utbipar);
1476                 tbiBaseAddress &= UTBIPAR_PHY_ADDRESS_MASK;
1477                 tbiBaseAddress >>= UTBIPAR_PHY_ADDRESS_SHIFT;
1478                 value = ugeth->phydev->bus->read(ugeth->phydev->bus,
1479                                 (u8) tbiBaseAddress, ENET_TBI_MII_CR);
1480                 value &= ~0x1000;       /* Turn off autonegotiation */
1481                 ugeth->phydev->bus->write(ugeth->phydev->bus,
1482                                 (u8) tbiBaseAddress, ENET_TBI_MII_CR, value);
1483         }
1484
1485         init_check_frame_length_mode(ug_info->lengthCheckRx, &ug_regs->maccfg2);
1486
1487         ret_val = init_preamble_length(ug_info->prel, &ug_regs->maccfg2);
1488         if (ret_val != 0) {
1489                 ugeth_err
1490                     ("%s: Preamble length must be between 3 and 7 inclusive.",
1491                      __FUNCTION__);
1492                 return ret_val;
1493         }
1494
1495         return 0;
1496 }
1497
1498 /* Called every time the controller might need to be made
1499  * aware of new link state.  The PHY code conveys this
1500  * information through variables in the ugeth structure, and this
1501  * function converts those variables into the appropriate
1502  * register values, and can bring down the device if needed.
1503  */
1504
1505 static void adjust_link(struct net_device *dev)
1506 {
1507         struct ucc_geth_private *ugeth = netdev_priv(dev);
1508         struct ucc_geth *ug_regs;
1509         struct ucc_fast *uf_regs;
1510         struct phy_device *phydev = ugeth->phydev;
1511         unsigned long flags;
1512         int new_state = 0;
1513
1514         ug_regs = ugeth->ug_regs;
1515         uf_regs = ugeth->uccf->uf_regs;
1516
1517         spin_lock_irqsave(&ugeth->lock, flags);
1518
1519         if (phydev->link) {
1520                 u32 tempval = in_be32(&ug_regs->maccfg2);
1521                 u32 upsmr = in_be32(&uf_regs->upsmr);
1522                 /* Now we make sure that we can be in full duplex mode.
1523                  * If not, we operate in half-duplex mode. */
1524                 if (phydev->duplex != ugeth->oldduplex) {
1525                         new_state = 1;
1526                         if (!(phydev->duplex))
1527                                 tempval &= ~(MACCFG2_FDX);
1528                         else
1529                                 tempval |= MACCFG2_FDX;
1530                         ugeth->oldduplex = phydev->duplex;
1531                 }
1532
1533                 if (phydev->speed != ugeth->oldspeed) {
1534                         new_state = 1;
1535                         switch (phydev->speed) {
1536                         case SPEED_1000:
1537                                 tempval = ((tempval &
1538                                             ~(MACCFG2_INTERFACE_MODE_MASK)) |
1539                                             MACCFG2_INTERFACE_MODE_BYTE);
1540                                 break;
1541                         case SPEED_100:
1542                         case SPEED_10:
1543                                 tempval = ((tempval &
1544                                             ~(MACCFG2_INTERFACE_MODE_MASK)) |
1545                                             MACCFG2_INTERFACE_MODE_NIBBLE);
1546                                 /* if reduced mode, re-set UPSMR.R10M */
1547                                 if ((ugeth->phy_interface == PHY_INTERFACE_MODE_RMII) ||
1548                                     (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII) ||
1549                                     (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_ID) ||
1550                                     (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1551                                         if (phydev->speed == SPEED_10)
1552                                                 upsmr |= UPSMR_R10M;
1553                                         else
1554                                                 upsmr &= ~(UPSMR_R10M);
1555                                 }
1556                                 break;
1557                         default:
1558                                 if (netif_msg_link(ugeth))
1559                                         ugeth_warn(
1560                                                 "%s: Ack!  Speed (%d) is not 10/100/1000!",
1561                                                 dev->name, phydev->speed);
1562                                 break;
1563                         }
1564                         ugeth->oldspeed = phydev->speed;
1565                 }
1566
1567                 out_be32(&ug_regs->maccfg2, tempval);
1568                 out_be32(&uf_regs->upsmr, upsmr);
1569
1570                 if (!ugeth->oldlink) {
1571                         new_state = 1;
1572                         ugeth->oldlink = 1;
1573                         netif_schedule(dev);
1574                 }
1575         } else if (ugeth->oldlink) {
1576                         new_state = 1;
1577                         ugeth->oldlink = 0;
1578                         ugeth->oldspeed = 0;
1579                         ugeth->oldduplex = -1;
1580         }
1581
1582         if (new_state && netif_msg_link(ugeth))
1583                 phy_print_status(phydev);
1584
1585         spin_unlock_irqrestore(&ugeth->lock, flags);
1586 }
1587
1588 /* Configure the PHY for dev.
1589  * returns 0 if success.  -1 if failure
1590  */
1591 static int init_phy(struct net_device *dev)
1592 {
1593         struct ucc_geth_private *priv = netdev_priv(dev);
1594         struct phy_device *phydev;
1595         char phy_id[BUS_ID_SIZE];
1596
1597         priv->oldlink = 0;
1598         priv->oldspeed = 0;
1599         priv->oldduplex = -1;
1600
1601         snprintf(phy_id, BUS_ID_SIZE, PHY_ID_FMT, priv->ug_info->mdio_bus,
1602                         priv->ug_info->phy_address);
1603
1604         phydev = phy_connect(dev, phy_id, &adjust_link, 0, priv->phy_interface);
1605
1606         if (IS_ERR(phydev)) {
1607                 printk("%s: Could not attach to PHY\n", dev->name);
1608                 return PTR_ERR(phydev);
1609         }
1610
1611         phydev->supported &= (ADVERTISED_10baseT_Half |
1612                                  ADVERTISED_10baseT_Full |
1613                                  ADVERTISED_100baseT_Half |
1614                                  ADVERTISED_100baseT_Full);
1615
1616         if (priv->max_speed == SPEED_1000)
1617                 phydev->supported |= ADVERTISED_1000baseT_Full;
1618
1619         phydev->advertising = phydev->supported;
1620
1621         priv->phydev = phydev;
1622
1623         return 0;
1624 }
1625
1626
1627
1628 static int ugeth_graceful_stop_tx(struct ucc_geth_private *ugeth)
1629 {
1630         struct ucc_fast_private *uccf;
1631         u32 cecr_subblock;
1632         u32 temp;
1633
1634         uccf = ugeth->uccf;
1635
1636         /* Mask GRACEFUL STOP TX interrupt bit and clear it */
1637         temp = in_be32(uccf->p_uccm);
1638         temp &= ~UCCE_GRA;
1639         out_be32(uccf->p_uccm, temp);
1640         out_be32(uccf->p_ucce, UCCE_GRA);       /* clear by writing 1 */
1641
1642         /* Issue host command */
1643         cecr_subblock =
1644             ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
1645         qe_issue_cmd(QE_GRACEFUL_STOP_TX, cecr_subblock,
1646                      QE_CR_PROTOCOL_ETHERNET, 0);
1647
1648         /* Wait for command to complete */
1649         do {
1650                 temp = in_be32(uccf->p_ucce);
1651         } while (!(temp & UCCE_GRA));
1652
1653         uccf->stopped_tx = 1;
1654
1655         return 0;
1656 }
1657
1658 static int ugeth_graceful_stop_rx(struct ucc_geth_private * ugeth)
1659 {
1660         struct ucc_fast_private *uccf;
1661         u32 cecr_subblock;
1662         u8 temp;
1663
1664         uccf = ugeth->uccf;
1665
1666         /* Clear acknowledge bit */
1667         temp = ugeth->p_rx_glbl_pram->rxgstpack;
1668         temp &= ~GRACEFUL_STOP_ACKNOWLEDGE_RX;
1669         ugeth->p_rx_glbl_pram->rxgstpack = temp;
1670
1671         /* Keep issuing command and checking acknowledge bit until
1672         it is asserted, according to spec */
1673         do {
1674                 /* Issue host command */
1675                 cecr_subblock =
1676                     ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.
1677                                                 ucc_num);
1678                 qe_issue_cmd(QE_GRACEFUL_STOP_RX, cecr_subblock,
1679                              QE_CR_PROTOCOL_ETHERNET, 0);
1680
1681                 temp = ugeth->p_rx_glbl_pram->rxgstpack;
1682         } while (!(temp & GRACEFUL_STOP_ACKNOWLEDGE_RX));
1683
1684         uccf->stopped_rx = 1;
1685
1686         return 0;
1687 }
1688
1689 static int ugeth_restart_tx(struct ucc_geth_private *ugeth)
1690 {
1691         struct ucc_fast_private *uccf;
1692         u32 cecr_subblock;
1693
1694         uccf = ugeth->uccf;
1695
1696         cecr_subblock =
1697             ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
1698         qe_issue_cmd(QE_RESTART_TX, cecr_subblock, QE_CR_PROTOCOL_ETHERNET, 0);
1699         uccf->stopped_tx = 0;
1700
1701         return 0;
1702 }
1703
1704 static int ugeth_restart_rx(struct ucc_geth_private *ugeth)
1705 {
1706         struct ucc_fast_private *uccf;
1707         u32 cecr_subblock;
1708
1709         uccf = ugeth->uccf;
1710
1711         cecr_subblock =
1712             ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
1713         qe_issue_cmd(QE_RESTART_RX, cecr_subblock, QE_CR_PROTOCOL_ETHERNET,
1714                      0);
1715         uccf->stopped_rx = 0;
1716
1717         return 0;
1718 }
1719
1720 static int ugeth_enable(struct ucc_geth_private *ugeth, enum comm_dir mode)
1721 {
1722         struct ucc_fast_private *uccf;
1723         int enabled_tx, enabled_rx;
1724
1725         uccf = ugeth->uccf;
1726
1727         /* check if the UCC number is in range. */
1728         if (ugeth->ug_info->uf_info.ucc_num >= UCC_MAX_NUM) {
1729                 ugeth_err("%s: ucc_num out of range.", __FUNCTION__);
1730                 return -EINVAL;
1731         }
1732
1733         enabled_tx = uccf->enabled_tx;
1734         enabled_rx = uccf->enabled_rx;
1735
1736         /* Get Tx and Rx going again, in case this channel was actively
1737         disabled. */
1738         if ((mode & COMM_DIR_TX) && (!enabled_tx) && uccf->stopped_tx)
1739                 ugeth_restart_tx(ugeth);
1740         if ((mode & COMM_DIR_RX) && (!enabled_rx) && uccf->stopped_rx)
1741                 ugeth_restart_rx(ugeth);
1742
1743         ucc_fast_enable(uccf, mode);    /* OK to do even if not disabled */
1744
1745         return 0;
1746
1747 }
1748
1749 static int ugeth_disable(struct ucc_geth_private * ugeth, enum comm_dir mode)
1750 {
1751         struct ucc_fast_private *uccf;
1752
1753         uccf = ugeth->uccf;
1754
1755         /* check if the UCC number is in range. */
1756         if (ugeth->ug_info->uf_info.ucc_num >= UCC_MAX_NUM) {
1757                 ugeth_err("%s: ucc_num out of range.", __FUNCTION__);
1758                 return -EINVAL;
1759         }
1760
1761         /* Stop any transmissions */
1762         if ((mode & COMM_DIR_TX) && uccf->enabled_tx && !uccf->stopped_tx)
1763                 ugeth_graceful_stop_tx(ugeth);
1764
1765         /* Stop any receptions */
1766         if ((mode & COMM_DIR_RX) && uccf->enabled_rx && !uccf->stopped_rx)
1767                 ugeth_graceful_stop_rx(ugeth);
1768
1769         ucc_fast_disable(ugeth->uccf, mode); /* OK to do even if not enabled */
1770
1771         return 0;
1772 }
1773
1774 static void ugeth_dump_regs(struct ucc_geth_private *ugeth)
1775 {
1776 #ifdef DEBUG
1777         ucc_fast_dump_regs(ugeth->uccf);
1778         dump_regs(ugeth);
1779         dump_bds(ugeth);
1780 #endif
1781 }
1782
1783 #ifdef CONFIG_UGETH_FILTERING
1784 static int ugeth_ext_filtering_serialize_tad(struct ucc_geth_tad_params *
1785                                              p_UccGethTadParams,
1786                                              struct qe_fltr_tad *qe_fltr_tad)
1787 {
1788         u16 temp;
1789
1790         /* Zero serialized TAD */
1791         memset(qe_fltr_tad, 0, QE_FLTR_TAD_SIZE);
1792
1793         qe_fltr_tad->serialized[0] |= UCC_GETH_TAD_V;   /* Must have this */
1794         if (p_UccGethTadParams->rx_non_dynamic_extended_features_mode ||
1795             (p_UccGethTadParams->vtag_op != UCC_GETH_VLAN_OPERATION_TAGGED_NOP)
1796             || (p_UccGethTadParams->vnontag_op !=
1797                 UCC_GETH_VLAN_OPERATION_NON_TAGGED_NOP)
1798             )
1799                 qe_fltr_tad->serialized[0] |= UCC_GETH_TAD_EF;
1800         if (p_UccGethTadParams->reject_frame)
1801                 qe_fltr_tad->serialized[0] |= UCC_GETH_TAD_REJ;
1802         temp =
1803             (u16) (((u16) p_UccGethTadParams->
1804                     vtag_op) << UCC_GETH_TAD_VTAG_OP_SHIFT);
1805         qe_fltr_tad->serialized[0] |= (u8) (temp >> 8); /* upper bits */
1806
1807         qe_fltr_tad->serialized[1] |= (u8) (temp & 0x00ff);     /* lower bits */
1808         if (p_UccGethTadParams->vnontag_op ==
1809             UCC_GETH_VLAN_OPERATION_NON_TAGGED_Q_TAG_INSERT)
1810                 qe_fltr_tad->serialized[1] |= UCC_GETH_TAD_V_NON_VTAG_OP;
1811         qe_fltr_tad->serialized[1] |=
1812             p_UccGethTadParams->rqos << UCC_GETH_TAD_RQOS_SHIFT;
1813
1814         qe_fltr_tad->serialized[2] |=
1815             p_UccGethTadParams->vpri << UCC_GETH_TAD_V_PRIORITY_SHIFT;
1816         /* upper bits */
1817         qe_fltr_tad->serialized[2] |= (u8) (p_UccGethTadParams->vid >> 8);
1818         /* lower bits */
1819         qe_fltr_tad->serialized[3] |= (u8) (p_UccGethTadParams->vid & 0x00ff);
1820
1821         return 0;
1822 }
1823
1824 static struct enet_addr_container_t
1825     *ugeth_82xx_filtering_get_match_addr_in_hash(struct ucc_geth_private *ugeth,
1826                                                  struct enet_addr *p_enet_addr)
1827 {
1828         struct enet_addr_container *enet_addr_cont;
1829         struct list_head *p_lh;
1830         u16 i, num;
1831         int32_t j;
1832         u8 *p_counter;
1833
1834         if ((*p_enet_addr)[0] & ENET_GROUP_ADDR) {
1835                 p_lh = &ugeth->group_hash_q;
1836                 p_counter = &(ugeth->numGroupAddrInHash);
1837         } else {
1838                 p_lh = &ugeth->ind_hash_q;
1839                 p_counter = &(ugeth->numIndAddrInHash);
1840         }
1841
1842         if (!p_lh)
1843                 return NULL;
1844
1845         num = *p_counter;
1846
1847         for (i = 0; i < num; i++) {
1848                 enet_addr_cont =
1849                     (struct enet_addr_container *)
1850                     ENET_ADDR_CONT_ENTRY(dequeue(p_lh));
1851                 for (j = ENET_NUM_OCTETS_PER_ADDRESS - 1; j >= 0; j--) {
1852                         if ((*p_enet_addr)[j] != (enet_addr_cont->address)[j])
1853                                 break;
1854                         if (j == 0)
1855                                 return enet_addr_cont;  /* Found */
1856                 }
1857                 enqueue(p_lh, &enet_addr_cont->node);   /* Put it back */
1858         }
1859         return NULL;
1860 }
1861
1862 static int ugeth_82xx_filtering_add_addr_in_hash(struct ucc_geth_private *ugeth,
1863                                                  struct enet_addr *p_enet_addr)
1864 {
1865         enum ucc_geth_enet_address_recognition_location location;
1866         struct enet_addr_container *enet_addr_cont;
1867         struct list_head *p_lh;
1868         u8 i;
1869         u32 limit;
1870         u8 *p_counter;
1871
1872         if ((*p_enet_addr)[0] & ENET_GROUP_ADDR) {
1873                 p_lh = &ugeth->group_hash_q;
1874                 limit = ugeth->ug_info->maxGroupAddrInHash;
1875                 location =
1876                     UCC_GETH_ENET_ADDRESS_RECOGNITION_LOCATION_GROUP_HASH;
1877                 p_counter = &(ugeth->numGroupAddrInHash);
1878         } else {
1879                 p_lh = &ugeth->ind_hash_q;
1880                 limit = ugeth->ug_info->maxIndAddrInHash;
1881                 location =
1882                     UCC_GETH_ENET_ADDRESS_RECOGNITION_LOCATION_INDIVIDUAL_HASH;
1883                 p_counter = &(ugeth->numIndAddrInHash);
1884         }
1885
1886         if ((enet_addr_cont =
1887              ugeth_82xx_filtering_get_match_addr_in_hash(ugeth, p_enet_addr))) {
1888                 list_add(p_lh, &enet_addr_cont->node);  /* Put it back */
1889                 return 0;
1890         }
1891         if ((!p_lh) || (!(*p_counter < limit)))
1892                 return -EBUSY;
1893         if (!(enet_addr_cont = get_enet_addr_container()))
1894                 return -ENOMEM;
1895         for (i = 0; i < ENET_NUM_OCTETS_PER_ADDRESS; i++)
1896                 (enet_addr_cont->address)[i] = (*p_enet_addr)[i];
1897         enet_addr_cont->location = location;
1898         enqueue(p_lh, &enet_addr_cont->node);   /* Put it back */
1899         ++(*p_counter);
1900
1901         hw_add_addr_in_hash(ugeth, enet_addr_cont->address);
1902         return 0;
1903 }
1904
1905 static int ugeth_82xx_filtering_clear_addr_in_hash(struct ucc_geth_private *ugeth,
1906                                                    struct enet_addr *p_enet_addr)
1907 {
1908         struct ucc_geth_82xx_address_filtering_pram *p_82xx_addr_filt;
1909         struct enet_addr_container *enet_addr_cont;
1910         struct ucc_fast_private *uccf;
1911         enum comm_dir comm_dir;
1912         u16 i, num;
1913         struct list_head *p_lh;
1914         u32 *addr_h, *addr_l;
1915         u8 *p_counter;
1916
1917         uccf = ugeth->uccf;
1918
1919         p_82xx_addr_filt =
1920             (struct ucc_geth_82xx_address_filtering_pram *) ugeth->p_rx_glbl_pram->
1921             addressfiltering;
1922
1923         if (!
1924             (enet_addr_cont =
1925              ugeth_82xx_filtering_get_match_addr_in_hash(ugeth, p_enet_addr)))
1926                 return -ENOENT;
1927
1928         /* It's been found and removed from the CQ. */
1929         /* Now destroy its container */
1930         put_enet_addr_container(enet_addr_cont);
1931
1932         if ((*p_enet_addr)[0] & ENET_GROUP_ADDR) {
1933                 addr_h = &(p_82xx_addr_filt->gaddr_h);
1934                 addr_l = &(p_82xx_addr_filt->gaddr_l);
1935                 p_lh = &ugeth->group_hash_q;
1936                 p_counter = &(ugeth->numGroupAddrInHash);
1937         } else {
1938                 addr_h = &(p_82xx_addr_filt->iaddr_h);
1939                 addr_l = &(p_82xx_addr_filt->iaddr_l);
1940                 p_lh = &ugeth->ind_hash_q;
1941                 p_counter = &(ugeth->numIndAddrInHash);
1942         }
1943
1944         comm_dir = 0;
1945         if (uccf->enabled_tx)
1946                 comm_dir |= COMM_DIR_TX;
1947         if (uccf->enabled_rx)
1948                 comm_dir |= COMM_DIR_RX;
1949         if (comm_dir)
1950                 ugeth_disable(ugeth, comm_dir);
1951
1952         /* Clear the hash table. */
1953         out_be32(addr_h, 0x00000000);
1954         out_be32(addr_l, 0x00000000);
1955
1956         /* Add all remaining CQ elements back into hash */
1957         num = --(*p_counter);
1958         for (i = 0; i < num; i++) {
1959                 enet_addr_cont =
1960                     (struct enet_addr_container *)
1961                     ENET_ADDR_CONT_ENTRY(dequeue(p_lh));
1962                 hw_add_addr_in_hash(ugeth, enet_addr_cont->address);
1963                 enqueue(p_lh, &enet_addr_cont->node);   /* Put it back */
1964         }
1965
1966         if (comm_dir)
1967                 ugeth_enable(ugeth, comm_dir);
1968
1969         return 0;
1970 }
1971 #endif /* CONFIG_UGETH_FILTERING */
1972
1973 static int ugeth_82xx_filtering_clear_all_addr_in_hash(struct ucc_geth_private *
1974                                                        ugeth,
1975                                                        enum enet_addr_type
1976                                                        enet_addr_type)
1977 {
1978         struct ucc_geth_82xx_address_filtering_pram *p_82xx_addr_filt;
1979         struct ucc_fast_private *uccf;
1980         enum comm_dir comm_dir;
1981         struct list_head *p_lh;
1982         u16 i, num;
1983         u32 *addr_h, *addr_l;
1984         u8 *p_counter;
1985
1986         uccf = ugeth->uccf;
1987
1988         p_82xx_addr_filt =
1989             (struct ucc_geth_82xx_address_filtering_pram *) ugeth->p_rx_glbl_pram->
1990             addressfiltering;
1991
1992         if (enet_addr_type == ENET_ADDR_TYPE_GROUP) {
1993                 addr_h = &(p_82xx_addr_filt->gaddr_h);
1994                 addr_l = &(p_82xx_addr_filt->gaddr_l);
1995                 p_lh = &ugeth->group_hash_q;
1996                 p_counter = &(ugeth->numGroupAddrInHash);
1997         } else if (enet_addr_type == ENET_ADDR_TYPE_INDIVIDUAL) {
1998                 addr_h = &(p_82xx_addr_filt->iaddr_h);
1999                 addr_l = &(p_82xx_addr_filt->iaddr_l);
2000                 p_lh = &ugeth->ind_hash_q;
2001                 p_counter = &(ugeth->numIndAddrInHash);
2002         } else
2003                 return -EINVAL;
2004
2005         comm_dir = 0;
2006         if (uccf->enabled_tx)
2007                 comm_dir |= COMM_DIR_TX;
2008         if (uccf->enabled_rx)
2009                 comm_dir |= COMM_DIR_RX;
2010         if (comm_dir)
2011                 ugeth_disable(ugeth, comm_dir);
2012
2013         /* Clear the hash table. */
2014         out_be32(addr_h, 0x00000000);
2015         out_be32(addr_l, 0x00000000);
2016
2017         if (!p_lh)
2018                 return 0;
2019
2020         num = *p_counter;
2021
2022         /* Delete all remaining CQ elements */
2023         for (i = 0; i < num; i++)
2024                 put_enet_addr_container(ENET_ADDR_CONT_ENTRY(dequeue(p_lh)));
2025
2026         *p_counter = 0;
2027
2028         if (comm_dir)
2029                 ugeth_enable(ugeth, comm_dir);
2030
2031         return 0;
2032 }
2033
2034 #ifdef CONFIG_UGETH_FILTERING
2035 static int ugeth_82xx_filtering_add_addr_in_paddr(struct ucc_geth_private *ugeth,
2036                                                   struct enet_addr *p_enet_addr,
2037                                                   u8 paddr_num)
2038 {
2039         int i;
2040
2041         if ((*p_enet_addr)[0] & ENET_GROUP_ADDR)
2042                 ugeth_warn
2043                     ("%s: multicast address added to paddr will have no "
2044                      "effect - is this what you wanted?",
2045                      __FUNCTION__);
2046
2047         ugeth->indAddrRegUsed[paddr_num] = 1;   /* mark this paddr as used */
2048         /* store address in our database */
2049         for (i = 0; i < ENET_NUM_OCTETS_PER_ADDRESS; i++)
2050                 ugeth->paddr[paddr_num][i] = (*p_enet_addr)[i];
2051         /* put in hardware */
2052         return hw_add_addr_in_paddr(ugeth, p_enet_addr, paddr_num);
2053 }
2054 #endif /* CONFIG_UGETH_FILTERING */
2055
2056 static int ugeth_82xx_filtering_clear_addr_in_paddr(struct ucc_geth_private *ugeth,
2057                                                     u8 paddr_num)
2058 {
2059         ugeth->indAddrRegUsed[paddr_num] = 0; /* mark this paddr as not used */
2060         return hw_clear_addr_in_paddr(ugeth, paddr_num);/* clear in hardware */
2061 }
2062
2063 static void ucc_geth_memclean(struct ucc_geth_private *ugeth)
2064 {
2065         u16 i, j;
2066         u8 *bd;
2067
2068         if (!ugeth)
2069                 return;
2070
2071         if (ugeth->uccf)
2072                 ucc_fast_free(ugeth->uccf);
2073
2074         if (ugeth->p_thread_data_tx) {
2075                 qe_muram_free(ugeth->thread_dat_tx_offset);
2076                 ugeth->p_thread_data_tx = NULL;
2077         }
2078         if (ugeth->p_thread_data_rx) {
2079                 qe_muram_free(ugeth->thread_dat_rx_offset);
2080                 ugeth->p_thread_data_rx = NULL;
2081         }
2082         if (ugeth->p_exf_glbl_param) {
2083                 qe_muram_free(ugeth->exf_glbl_param_offset);
2084                 ugeth->p_exf_glbl_param = NULL;
2085         }
2086         if (ugeth->p_rx_glbl_pram) {
2087                 qe_muram_free(ugeth->rx_glbl_pram_offset);
2088                 ugeth->p_rx_glbl_pram = NULL;
2089         }
2090         if (ugeth->p_tx_glbl_pram) {
2091                 qe_muram_free(ugeth->tx_glbl_pram_offset);
2092                 ugeth->p_tx_glbl_pram = NULL;
2093         }
2094         if (ugeth->p_send_q_mem_reg) {
2095                 qe_muram_free(ugeth->send_q_mem_reg_offset);
2096                 ugeth->p_send_q_mem_reg = NULL;
2097         }
2098         if (ugeth->p_scheduler) {
2099                 qe_muram_free(ugeth->scheduler_offset);
2100                 ugeth->p_scheduler = NULL;
2101         }
2102         if (ugeth->p_tx_fw_statistics_pram) {
2103                 qe_muram_free(ugeth->tx_fw_statistics_pram_offset);
2104                 ugeth->p_tx_fw_statistics_pram = NULL;
2105         }
2106         if (ugeth->p_rx_fw_statistics_pram) {
2107                 qe_muram_free(ugeth->rx_fw_statistics_pram_offset);
2108                 ugeth->p_rx_fw_statistics_pram = NULL;
2109         }
2110         if (ugeth->p_rx_irq_coalescing_tbl) {
2111                 qe_muram_free(ugeth->rx_irq_coalescing_tbl_offset);
2112                 ugeth->p_rx_irq_coalescing_tbl = NULL;
2113         }
2114         if (ugeth->p_rx_bd_qs_tbl) {
2115                 qe_muram_free(ugeth->rx_bd_qs_tbl_offset);
2116                 ugeth->p_rx_bd_qs_tbl = NULL;
2117         }
2118         if (ugeth->p_init_enet_param_shadow) {
2119                 return_init_enet_entries(ugeth,
2120                                          &(ugeth->p_init_enet_param_shadow->
2121                                            rxthread[0]),
2122                                          ENET_INIT_PARAM_MAX_ENTRIES_RX,
2123                                          ugeth->ug_info->riscRx, 1);
2124                 return_init_enet_entries(ugeth,
2125                                          &(ugeth->p_init_enet_param_shadow->
2126                                            txthread[0]),
2127                                          ENET_INIT_PARAM_MAX_ENTRIES_TX,
2128                                          ugeth->ug_info->riscTx, 0);
2129                 kfree(ugeth->p_init_enet_param_shadow);
2130                 ugeth->p_init_enet_param_shadow = NULL;
2131         }
2132         for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) {
2133                 bd = ugeth->p_tx_bd_ring[i];
2134                 if (!bd)
2135                         continue;
2136                 for (j = 0; j < ugeth->ug_info->bdRingLenTx[i]; j++) {
2137                         if (ugeth->tx_skbuff[i][j]) {
2138                                 dma_unmap_single(NULL,
2139                                                  ((qe_bd_t *)bd)->buf,
2140                                                  (in_be32((u32 *)bd) &
2141                                                   BD_LENGTH_MASK),
2142                                                  DMA_TO_DEVICE);
2143                                 dev_kfree_skb_any(ugeth->tx_skbuff[i][j]);
2144                                 ugeth->tx_skbuff[i][j] = NULL;
2145                         }
2146                 }
2147
2148                 kfree(ugeth->tx_skbuff[i]);
2149
2150                 if (ugeth->p_tx_bd_ring[i]) {
2151                         if (ugeth->ug_info->uf_info.bd_mem_part ==
2152                             MEM_PART_SYSTEM)
2153                                 kfree((void *)ugeth->tx_bd_ring_offset[i]);
2154                         else if (ugeth->ug_info->uf_info.bd_mem_part ==
2155                                  MEM_PART_MURAM)
2156                                 qe_muram_free(ugeth->tx_bd_ring_offset[i]);
2157                         ugeth->p_tx_bd_ring[i] = NULL;
2158                 }
2159         }
2160         for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
2161                 if (ugeth->p_rx_bd_ring[i]) {
2162                         /* Return existing data buffers in ring */
2163                         bd = ugeth->p_rx_bd_ring[i];
2164                         for (j = 0; j < ugeth->ug_info->bdRingLenRx[i]; j++) {
2165                                 if (ugeth->rx_skbuff[i][j]) {
2166                                         dma_unmap_single(NULL,
2167                                                 ((struct qe_bd *)bd)->buf,
2168                                                 ugeth->ug_info->
2169                                                 uf_info.max_rx_buf_length +
2170                                                 UCC_GETH_RX_DATA_BUF_ALIGNMENT,
2171                                                 DMA_FROM_DEVICE);
2172                                         dev_kfree_skb_any(
2173                                                 ugeth->rx_skbuff[i][j]);
2174                                         ugeth->rx_skbuff[i][j] = NULL;
2175                                 }
2176                                 bd += sizeof(struct qe_bd);
2177                         }
2178
2179                         kfree(ugeth->rx_skbuff[i]);
2180
2181                         if (ugeth->ug_info->uf_info.bd_mem_part ==
2182                             MEM_PART_SYSTEM)
2183                                 kfree((void *)ugeth->rx_bd_ring_offset[i]);
2184                         else if (ugeth->ug_info->uf_info.bd_mem_part ==
2185                                  MEM_PART_MURAM)
2186                                 qe_muram_free(ugeth->rx_bd_ring_offset[i]);
2187                         ugeth->p_rx_bd_ring[i] = NULL;
2188                 }
2189         }
2190         while (!list_empty(&ugeth->group_hash_q))
2191                 put_enet_addr_container(ENET_ADDR_CONT_ENTRY
2192                                         (dequeue(&ugeth->group_hash_q)));
2193         while (!list_empty(&ugeth->ind_hash_q))
2194                 put_enet_addr_container(ENET_ADDR_CONT_ENTRY
2195                                         (dequeue(&ugeth->ind_hash_q)));
2196
2197 }
2198
2199 static void ucc_geth_set_multi(struct net_device *dev)
2200 {
2201         struct ucc_geth_private *ugeth;
2202         struct dev_mc_list *dmi;
2203         struct ucc_fast *uf_regs;
2204         struct ucc_geth_82xx_address_filtering_pram *p_82xx_addr_filt;
2205         u8 tempaddr[6];
2206         u8 *mcptr, *tdptr;
2207         int i, j;
2208
2209         ugeth = netdev_priv(dev);
2210
2211         uf_regs = ugeth->uccf->uf_regs;
2212
2213         if (dev->flags & IFF_PROMISC) {
2214
2215                 uf_regs->upsmr |= UPSMR_PRO;
2216
2217         } else {
2218
2219                 uf_regs->upsmr &= ~UPSMR_PRO;
2220
2221                 p_82xx_addr_filt =
2222                     (struct ucc_geth_82xx_address_filtering_pram *) ugeth->
2223                     p_rx_glbl_pram->addressfiltering;
2224
2225                 if (dev->flags & IFF_ALLMULTI) {
2226                         /* Catch all multicast addresses, so set the
2227                          * filter to all 1's.
2228                          */
2229                         out_be32(&p_82xx_addr_filt->gaddr_h, 0xffffffff);
2230                         out_be32(&p_82xx_addr_filt->gaddr_l, 0xffffffff);
2231                 } else {
2232                         /* Clear filter and add the addresses in the list.
2233                          */
2234                         out_be32(&p_82xx_addr_filt->gaddr_h, 0x0);
2235                         out_be32(&p_82xx_addr_filt->gaddr_l, 0x0);
2236
2237                         dmi = dev->mc_list;
2238
2239                         for (i = 0; i < dev->mc_count; i++, dmi = dmi->next) {
2240
2241                                 /* Only support group multicast for now.
2242                                  */
2243                                 if (!(dmi->dmi_addr[0] & 1))
2244                                         continue;
2245
2246                                 /* The address in dmi_addr is LSB first,
2247                                  * and taddr is MSB first.  We have to
2248                                  * copy bytes MSB first from dmi_addr.
2249                                  */
2250                                 mcptr = (u8 *) dmi->dmi_addr + 5;
2251                                 tdptr = (u8 *) tempaddr;
2252                                 for (j = 0; j < 6; j++)
2253                                         *tdptr++ = *mcptr--;
2254
2255                                 /* Ask CPM to run CRC and set bit in
2256                                  * filter mask.
2257                                  */
2258                                 hw_add_addr_in_hash(ugeth, tempaddr);
2259                         }
2260                 }
2261         }
2262 }
2263
2264 static void ucc_geth_stop(struct ucc_geth_private *ugeth)
2265 {
2266         struct ucc_geth *ug_regs = ugeth->ug_regs;
2267         struct phy_device *phydev = ugeth->phydev;
2268         u32 tempval;
2269
2270         ugeth_vdbg("%s: IN", __FUNCTION__);
2271
2272         /* Disable the controller */
2273         ugeth_disable(ugeth, COMM_DIR_RX_AND_TX);
2274
2275         /* Tell the kernel the link is down */
2276         phy_stop(phydev);
2277
2278         /* Mask all interrupts */
2279         out_be32(ugeth->uccf->p_uccm, 0x00000000);
2280
2281         /* Clear all interrupts */
2282         out_be32(ugeth->uccf->p_ucce, 0xffffffff);
2283
2284         /* Disable Rx and Tx */
2285         tempval = in_be32(&ug_regs->maccfg1);
2286         tempval &= ~(MACCFG1_ENABLE_RX | MACCFG1_ENABLE_TX);
2287         out_be32(&ug_regs->maccfg1, tempval);
2288
2289         free_irq(ugeth->ug_info->uf_info.irq, ugeth->dev);
2290
2291         ucc_geth_memclean(ugeth);
2292 }
2293
2294 static int ucc_struct_init(struct ucc_geth_private *ugeth)
2295 {
2296         struct ucc_geth_info *ug_info;
2297         struct ucc_fast_info *uf_info;
2298         int i;
2299
2300         ug_info = ugeth->ug_info;
2301         uf_info = &ug_info->uf_info;
2302
2303         /* Create CQs for hash tables */
2304         INIT_LIST_HEAD(&ugeth->group_hash_q);
2305         INIT_LIST_HEAD(&ugeth->ind_hash_q);
2306
2307         if (!((uf_info->bd_mem_part == MEM_PART_SYSTEM) ||
2308               (uf_info->bd_mem_part == MEM_PART_MURAM))) {
2309                 ugeth_err("%s: Bad memory partition value.", __FUNCTION__);
2310                 return -EINVAL;
2311         }
2312
2313         /* Rx BD lengths */
2314         for (i = 0; i < ug_info->numQueuesRx; i++) {
2315                 if ((ug_info->bdRingLenRx[i] < UCC_GETH_RX_BD_RING_SIZE_MIN) ||
2316                     (ug_info->bdRingLenRx[i] %
2317                      UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT)) {
2318                         ugeth_err
2319                             ("%s: Rx BD ring length must be multiple of 4,"
2320                                 " no smaller than 8.", __FUNCTION__);
2321                         return -EINVAL;
2322                 }
2323         }
2324
2325         /* Tx BD lengths */
2326         for (i = 0; i < ug_info->numQueuesTx; i++) {
2327                 if (ug_info->bdRingLenTx[i] < UCC_GETH_TX_BD_RING_SIZE_MIN) {
2328                         ugeth_err
2329                             ("%s: Tx BD ring length must be no smaller than 2.",
2330                              __FUNCTION__);
2331                         return -EINVAL;
2332                 }
2333         }
2334
2335         /* mrblr */
2336         if ((uf_info->max_rx_buf_length == 0) ||
2337             (uf_info->max_rx_buf_length % UCC_GETH_MRBLR_ALIGNMENT)) {
2338                 ugeth_err
2339                     ("%s: max_rx_buf_length must be non-zero multiple of 128.",
2340                      __FUNCTION__);
2341                 return -EINVAL;
2342         }
2343
2344         /* num Tx queues */
2345         if (ug_info->numQueuesTx > NUM_TX_QUEUES) {
2346                 ugeth_err("%s: number of tx queues too large.", __FUNCTION__);
2347                 return -EINVAL;
2348         }
2349
2350         /* num Rx queues */
2351         if (ug_info->numQueuesRx > NUM_RX_QUEUES) {
2352                 ugeth_err("%s: number of rx queues too large.", __FUNCTION__);
2353                 return -EINVAL;
2354         }
2355
2356         /* l2qt */
2357         for (i = 0; i < UCC_GETH_VLAN_PRIORITY_MAX; i++) {
2358                 if (ug_info->l2qt[i] >= ug_info->numQueuesRx) {
2359                         ugeth_err
2360                             ("%s: VLAN priority table entry must not be"
2361                                 " larger than number of Rx queues.",
2362                              __FUNCTION__);
2363                         return -EINVAL;
2364                 }
2365         }
2366
2367         /* l3qt */
2368         for (i = 0; i < UCC_GETH_IP_PRIORITY_MAX; i++) {
2369                 if (ug_info->l3qt[i] >= ug_info->numQueuesRx) {
2370                         ugeth_err
2371                             ("%s: IP priority table entry must not be"
2372                                 " larger than number of Rx queues.",
2373                              __FUNCTION__);
2374                         return -EINVAL;
2375                 }
2376         }
2377
2378         if (ug_info->cam && !ug_info->ecamptr) {
2379                 ugeth_err("%s: If cam mode is chosen, must supply cam ptr.",
2380                           __FUNCTION__);
2381                 return -EINVAL;
2382         }
2383
2384         if ((ug_info->numStationAddresses !=
2385              UCC_GETH_NUM_OF_STATION_ADDRESSES_1)
2386             && ug_info->rxExtendedFiltering) {
2387                 ugeth_err("%s: Number of station addresses greater than 1 "
2388                           "not allowed in extended parsing mode.",
2389                           __FUNCTION__);
2390                 return -EINVAL;
2391         }
2392
2393         /* Generate uccm_mask for receive */
2394         uf_info->uccm_mask = ug_info->eventRegMask & UCCE_OTHER;/* Errors */
2395         for (i = 0; i < ug_info->numQueuesRx; i++)
2396                 uf_info->uccm_mask |= (UCCE_RXBF_SINGLE_MASK << i);
2397
2398         for (i = 0; i < ug_info->numQueuesTx; i++)
2399                 uf_info->uccm_mask |= (UCCE_TXBF_SINGLE_MASK << i);
2400         /* Initialize the general fast UCC block. */
2401         if (ucc_fast_init(uf_info, &ugeth->uccf)) {
2402                 ugeth_err("%s: Failed to init uccf.", __FUNCTION__);
2403                 ucc_geth_memclean(ugeth);
2404                 return -ENOMEM;
2405         }
2406
2407         ugeth->ug_regs = (struct ucc_geth *) ioremap(uf_info->regs, sizeof(struct ucc_geth));
2408
2409         return 0;
2410 }
2411
2412 static int ucc_geth_startup(struct ucc_geth_private *ugeth)
2413 {
2414         struct ucc_geth_82xx_address_filtering_pram *p_82xx_addr_filt;
2415         struct ucc_geth_init_pram *p_init_enet_pram;
2416         struct ucc_fast_private *uccf;
2417         struct ucc_geth_info *ug_info;
2418         struct ucc_fast_info *uf_info;
2419         struct ucc_fast *uf_regs;
2420         struct ucc_geth *ug_regs;
2421         int ret_val = -EINVAL;
2422         u32 remoder = UCC_GETH_REMODER_INIT;
2423         u32 init_enet_pram_offset, cecr_subblock, command, maccfg1;
2424         u32 ifstat, i, j, size, l2qt, l3qt, length;
2425         u16 temoder = UCC_GETH_TEMODER_INIT;
2426         u16 test;
2427         u8 function_code = 0;
2428         u8 *bd, *endOfRing;
2429         u8 numThreadsRxNumerical, numThreadsTxNumerical;
2430
2431         ugeth_vdbg("%s: IN", __FUNCTION__);
2432         uccf = ugeth->uccf;
2433         ug_info = ugeth->ug_info;
2434         uf_info = &ug_info->uf_info;
2435         uf_regs = uccf->uf_regs;
2436         ug_regs = ugeth->ug_regs;
2437
2438         switch (ug_info->numThreadsRx) {
2439         case UCC_GETH_NUM_OF_THREADS_1:
2440                 numThreadsRxNumerical = 1;
2441                 break;
2442         case UCC_GETH_NUM_OF_THREADS_2:
2443                 numThreadsRxNumerical = 2;
2444                 break;
2445         case UCC_GETH_NUM_OF_THREADS_4:
2446                 numThreadsRxNumerical = 4;
2447                 break;
2448         case UCC_GETH_NUM_OF_THREADS_6:
2449                 numThreadsRxNumerical = 6;
2450                 break;
2451         case UCC_GETH_NUM_OF_THREADS_8:
2452                 numThreadsRxNumerical = 8;
2453                 break;
2454         default:
2455                 ugeth_err("%s: Bad number of Rx threads value.", __FUNCTION__);
2456                 ucc_geth_memclean(ugeth);
2457                 return -EINVAL;
2458                 break;
2459         }
2460
2461         switch (ug_info->numThreadsTx) {
2462         case UCC_GETH_NUM_OF_THREADS_1:
2463                 numThreadsTxNumerical = 1;
2464                 break;
2465         case UCC_GETH_NUM_OF_THREADS_2:
2466                 numThreadsTxNumerical = 2;
2467                 break;
2468         case UCC_GETH_NUM_OF_THREADS_4:
2469                 numThreadsTxNumerical = 4;
2470                 break;
2471         case UCC_GETH_NUM_OF_THREADS_6:
2472                 numThreadsTxNumerical = 6;
2473                 break;
2474         case UCC_GETH_NUM_OF_THREADS_8:
2475                 numThreadsTxNumerical = 8;
2476                 break;
2477         default:
2478                 ugeth_err("%s: Bad number of Tx threads value.", __FUNCTION__);
2479                 ucc_geth_memclean(ugeth);
2480                 return -EINVAL;
2481                 break;
2482         }
2483
2484         /* Calculate rx_extended_features */
2485         ugeth->rx_non_dynamic_extended_features = ug_info->ipCheckSumCheck ||
2486             ug_info->ipAddressAlignment ||
2487             (ug_info->numStationAddresses !=
2488              UCC_GETH_NUM_OF_STATION_ADDRESSES_1);
2489
2490         ugeth->rx_extended_features = ugeth->rx_non_dynamic_extended_features ||
2491             (ug_info->vlanOperationTagged != UCC_GETH_VLAN_OPERATION_TAGGED_NOP)
2492             || (ug_info->vlanOperationNonTagged !=
2493                 UCC_GETH_VLAN_OPERATION_NON_TAGGED_NOP);
2494
2495         init_default_reg_vals(&uf_regs->upsmr,
2496                               &ug_regs->maccfg1, &ug_regs->maccfg2);
2497
2498         /*                    Set UPSMR                      */
2499         /* For more details see the hardware spec.           */
2500         init_rx_parameters(ug_info->bro,
2501                            ug_info->rsh, ug_info->pro, &uf_regs->upsmr);
2502
2503         /* We're going to ignore other registers for now, */
2504         /* except as needed to get up and running         */
2505
2506         /*                    Set MACCFG1                    */
2507         /* For more details see the hardware spec.           */
2508         init_flow_control_params(ug_info->aufc,
2509                                  ug_info->receiveFlowControl,
2510                                  1,
2511                                  ug_info->pausePeriod,
2512                                  ug_info->extensionField,
2513                                  &uf_regs->upsmr,
2514                                  &ug_regs->uempr, &ug_regs->maccfg1);
2515
2516         maccfg1 = in_be32(&ug_regs->maccfg1);
2517         maccfg1 |= MACCFG1_ENABLE_RX;
2518         maccfg1 |= MACCFG1_ENABLE_TX;
2519         out_be32(&ug_regs->maccfg1, maccfg1);
2520
2521         /*                    Set IPGIFG                     */
2522         /* For more details see the hardware spec.           */
2523         ret_val = init_inter_frame_gap_params(ug_info->nonBackToBackIfgPart1,
2524                                               ug_info->nonBackToBackIfgPart2,
2525                                               ug_info->
2526                                               miminumInterFrameGapEnforcement,
2527                                               ug_info->backToBackInterFrameGap,
2528                                               &ug_regs->ipgifg);
2529         if (ret_val != 0) {
2530                 ugeth_err("%s: IPGIFG initialization parameter too large.",
2531                           __FUNCTION__);
2532                 ucc_geth_memclean(ugeth);
2533                 return ret_val;
2534         }
2535
2536         /*                    Set HAFDUP                     */
2537         /* For more details see the hardware spec.           */
2538         ret_val = init_half_duplex_params(ug_info->altBeb,
2539                                           ug_info->backPressureNoBackoff,
2540                                           ug_info->noBackoff,
2541                                           ug_info->excessDefer,
2542                                           ug_info->altBebTruncation,
2543                                           ug_info->maxRetransmission,
2544                                           ug_info->collisionWindow,
2545                                           &ug_regs->hafdup);
2546         if (ret_val != 0) {
2547                 ugeth_err("%s: Half Duplex initialization parameter too large.",
2548                           __FUNCTION__);
2549                 ucc_geth_memclean(ugeth);
2550                 return ret_val;
2551         }
2552
2553         /*                    Set IFSTAT                     */
2554         /* For more details see the hardware spec.           */
2555         /* Read only - resets upon read                      */
2556         ifstat = in_be32(&ug_regs->ifstat);
2557
2558         /*                    Clear UEMPR                    */
2559         /* For more details see the hardware spec.           */
2560         out_be32(&ug_regs->uempr, 0);
2561
2562         /*                    Set UESCR                      */
2563         /* For more details see the hardware spec.           */
2564         init_hw_statistics_gathering_mode((ug_info->statisticsMode &
2565                                 UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE),
2566                                 0, &uf_regs->upsmr, &ug_regs->uescr);
2567
2568         /* Allocate Tx bds */
2569         for (j = 0; j < ug_info->numQueuesTx; j++) {
2570                 /* Allocate in multiple of
2571                    UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT,
2572                    according to spec */
2573                 length = ((ug_info->bdRingLenTx[j] * sizeof(struct qe_bd))
2574                           / UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT)
2575                     * UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
2576                 if ((ug_info->bdRingLenTx[j] * sizeof(struct qe_bd)) %
2577                     UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT)
2578                         length += UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
2579                 if (uf_info->bd_mem_part == MEM_PART_SYSTEM) {
2580                         u32 align = 4;
2581                         if (UCC_GETH_TX_BD_RING_ALIGNMENT > 4)
2582                                 align = UCC_GETH_TX_BD_RING_ALIGNMENT;
2583                         ugeth->tx_bd_ring_offset[j] =
2584                                 kmalloc((u32) (length + align), GFP_KERNEL);
2585
2586                         if (ugeth->tx_bd_ring_offset[j] != 0)
2587                                 ugeth->p_tx_bd_ring[j] =
2588                                         (void*)((ugeth->tx_bd_ring_offset[j] +
2589                                         align) & ~(align - 1));
2590                 } else if (uf_info->bd_mem_part == MEM_PART_MURAM) {
2591                         ugeth->tx_bd_ring_offset[j] =
2592                             qe_muram_alloc(length,
2593                                            UCC_GETH_TX_BD_RING_ALIGNMENT);
2594                         if (!IS_ERR_VALUE(ugeth->tx_bd_ring_offset[j]))
2595                                 ugeth->p_tx_bd_ring[j] =
2596                                     (u8 *) qe_muram_addr(ugeth->
2597                                                          tx_bd_ring_offset[j]);
2598                 }
2599                 if (!ugeth->p_tx_bd_ring[j]) {
2600                         ugeth_err
2601                             ("%s: Can not allocate memory for Tx bd rings.",
2602                              __FUNCTION__);
2603                         ucc_geth_memclean(ugeth);
2604                         return -ENOMEM;
2605                 }
2606                 /* Zero unused end of bd ring, according to spec */
2607                 memset(ugeth->p_tx_bd_ring[j] +
2608                        ug_info->bdRingLenTx[j] * sizeof(struct qe_bd), 0,
2609                        length - ug_info->bdRingLenTx[j] * sizeof(struct qe_bd));
2610         }
2611
2612         /* Allocate Rx bds */
2613         for (j = 0; j < ug_info->numQueuesRx; j++) {
2614                 length = ug_info->bdRingLenRx[j] * sizeof(struct qe_bd);
2615                 if (uf_info->bd_mem_part == MEM_PART_SYSTEM) {
2616                         u32 align = 4;
2617                         if (UCC_GETH_RX_BD_RING_ALIGNMENT > 4)
2618                                 align = UCC_GETH_RX_BD_RING_ALIGNMENT;
2619                         ugeth->rx_bd_ring_offset[j] =
2620                                 kmalloc((u32) (length + align), GFP_KERNEL);
2621                         if (ugeth->rx_bd_ring_offset[j] != 0)
2622                                 ugeth->p_rx_bd_ring[j] =
2623                                         (void*)((ugeth->rx_bd_ring_offset[j] +
2624                                         align) & ~(align - 1));
2625                 } else if (uf_info->bd_mem_part == MEM_PART_MURAM) {
2626                         ugeth->rx_bd_ring_offset[j] =
2627                             qe_muram_alloc(length,
2628                                            UCC_GETH_RX_BD_RING_ALIGNMENT);
2629                         if (!IS_ERR_VALUE(ugeth->rx_bd_ring_offset[j]))
2630                                 ugeth->p_rx_bd_ring[j] =
2631                                     (u8 *) qe_muram_addr(ugeth->
2632                                                          rx_bd_ring_offset[j]);
2633                 }
2634                 if (!ugeth->p_rx_bd_ring[j]) {
2635                         ugeth_err
2636                             ("%s: Can not allocate memory for Rx bd rings.",
2637                              __FUNCTION__);
2638                         ucc_geth_memclean(ugeth);
2639                         return -ENOMEM;
2640                 }
2641         }
2642
2643         /* Init Tx bds */
2644         for (j = 0; j < ug_info->numQueuesTx; j++) {
2645                 /* Setup the skbuff rings */
2646                 ugeth->tx_skbuff[j] = kmalloc(sizeof(struct sk_buff *) *
2647                                               ugeth->ug_info->bdRingLenTx[j],
2648                                               GFP_KERNEL);
2649
2650                 if (ugeth->tx_skbuff[j] == NULL) {
2651                         ugeth_err("%s: Could not allocate tx_skbuff",
2652                                   __FUNCTION__);
2653                         ucc_geth_memclean(ugeth);
2654                         return -ENOMEM;
2655                 }
2656
2657                 for (i = 0; i < ugeth->ug_info->bdRingLenTx[j]; i++)
2658                         ugeth->tx_skbuff[j][i] = NULL;
2659
2660                 ugeth->skb_curtx[j] = ugeth->skb_dirtytx[j] = 0;
2661                 bd = ugeth->confBd[j] = ugeth->txBd[j] = ugeth->p_tx_bd_ring[j];
2662                 for (i = 0; i < ug_info->bdRingLenTx[j]; i++) {
2663                         /* clear bd buffer */
2664                         out_be32(&((struct qe_bd *)bd)->buf, 0);
2665                         /* set bd status and length */
2666                         out_be32((u32 *)bd, 0);
2667                         bd += sizeof(struct qe_bd);
2668                 }
2669                 bd -= sizeof(struct qe_bd);
2670                 /* set bd status and length */
2671                 out_be32((u32 *)bd, T_W);       /* for last BD set Wrap bit */
2672         }
2673
2674         /* Init Rx bds */
2675         for (j = 0; j < ug_info->numQueuesRx; j++) {
2676                 /* Setup the skbuff rings */
2677                 ugeth->rx_skbuff[j] = kmalloc(sizeof(struct sk_buff *) *
2678                                               ugeth->ug_info->bdRingLenRx[j],
2679                                               GFP_KERNEL);
2680
2681                 if (ugeth->rx_skbuff[j] == NULL) {
2682                         ugeth_err("%s: Could not allocate rx_skbuff",
2683                                   __FUNCTION__);
2684                         ucc_geth_memclean(ugeth);
2685                         return -ENOMEM;
2686                 }
2687
2688                 for (i = 0; i < ugeth->ug_info->bdRingLenRx[j]; i++)
2689                         ugeth->rx_skbuff[j][i] = NULL;
2690
2691                 ugeth->skb_currx[j] = 0;
2692                 bd = ugeth->rxBd[j] = ugeth->p_rx_bd_ring[j];
2693                 for (i = 0; i < ug_info->bdRingLenRx[j]; i++) {
2694                         /* set bd status and length */
2695                         out_be32((u32 *)bd, R_I);
2696                         /* clear bd buffer */
2697                         out_be32(&((struct qe_bd *)bd)->buf, 0);
2698                         bd += sizeof(struct qe_bd);
2699                 }
2700                 bd -= sizeof(struct qe_bd);
2701                 /* set bd status and length */
2702                 out_be32((u32 *)bd, R_W); /* for last BD set Wrap bit */
2703         }
2704
2705         /*
2706          * Global PRAM
2707          */
2708         /* Tx global PRAM */
2709         /* Allocate global tx parameter RAM page */
2710         ugeth->tx_glbl_pram_offset =
2711             qe_muram_alloc(sizeof(struct ucc_geth_tx_global_pram),
2712                            UCC_GETH_TX_GLOBAL_PRAM_ALIGNMENT);
2713         if (IS_ERR_VALUE(ugeth->tx_glbl_pram_offset)) {
2714                 ugeth_err
2715                     ("%s: Can not allocate DPRAM memory for p_tx_glbl_pram.",
2716                      __FUNCTION__);
2717                 ucc_geth_memclean(ugeth);
2718                 return -ENOMEM;
2719         }
2720         ugeth->p_tx_glbl_pram =
2721             (struct ucc_geth_tx_global_pram *) qe_muram_addr(ugeth->
2722                                                         tx_glbl_pram_offset);
2723         /* Zero out p_tx_glbl_pram */
2724         memset(ugeth->p_tx_glbl_pram, 0, sizeof(struct ucc_geth_tx_global_pram));
2725
2726         /* Fill global PRAM */
2727
2728         /* TQPTR */
2729         /* Size varies with number of Tx threads */
2730         ugeth->thread_dat_tx_offset =
2731             qe_muram_alloc(numThreadsTxNumerical *
2732                            sizeof(struct ucc_geth_thread_data_tx) +
2733                            32 * (numThreadsTxNumerical == 1),
2734                            UCC_GETH_THREAD_DATA_ALIGNMENT);
2735         if (IS_ERR_VALUE(ugeth->thread_dat_tx_offset)) {
2736                 ugeth_err
2737                     ("%s: Can not allocate DPRAM memory for p_thread_data_tx.",
2738                      __FUNCTION__);
2739                 ucc_geth_memclean(ugeth);
2740                 return -ENOMEM;
2741         }
2742
2743         ugeth->p_thread_data_tx =
2744             (struct ucc_geth_thread_data_tx *) qe_muram_addr(ugeth->
2745                                                         thread_dat_tx_offset);
2746         out_be32(&ugeth->p_tx_glbl_pram->tqptr, ugeth->thread_dat_tx_offset);
2747
2748         /* vtagtable */
2749         for (i = 0; i < UCC_GETH_TX_VTAG_TABLE_ENTRY_MAX; i++)
2750                 out_be32(&ugeth->p_tx_glbl_pram->vtagtable[i],
2751                          ug_info->vtagtable[i]);
2752
2753         /* iphoffset */
2754         for (i = 0; i < TX_IP_OFFSET_ENTRY_MAX; i++)
2755                 ugeth->p_tx_glbl_pram->iphoffset[i] = ug_info->iphoffset[i];
2756
2757         /* SQPTR */
2758         /* Size varies with number of Tx queues */
2759         ugeth->send_q_mem_reg_offset =
2760             qe_muram_alloc(ug_info->numQueuesTx *
2761                            sizeof(struct ucc_geth_send_queue_qd),
2762                            UCC_GETH_SEND_QUEUE_QUEUE_DESCRIPTOR_ALIGNMENT);
2763         if (IS_ERR_VALUE(ugeth->send_q_mem_reg_offset)) {
2764                 ugeth_err
2765                     ("%s: Can not allocate DPRAM memory for p_send_q_mem_reg.",
2766                      __FUNCTION__);
2767                 ucc_geth_memclean(ugeth);
2768                 return -ENOMEM;
2769         }
2770
2771         ugeth->p_send_q_mem_reg =
2772             (struct ucc_geth_send_queue_mem_region *) qe_muram_addr(ugeth->
2773                         send_q_mem_reg_offset);
2774         out_be32(&ugeth->p_tx_glbl_pram->sqptr, ugeth->send_q_mem_reg_offset);
2775
2776         /* Setup the table */
2777         /* Assume BD rings are already established */
2778         for (i = 0; i < ug_info->numQueuesTx; i++) {
2779                 endOfRing =
2780                     ugeth->p_tx_bd_ring[i] + (ug_info->bdRingLenTx[i] -
2781                                               1) * sizeof(struct qe_bd);
2782                 if (ugeth->ug_info->uf_info.bd_mem_part == MEM_PART_SYSTEM) {
2783                         out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].bd_ring_base,
2784                                  (u32) virt_to_phys(ugeth->p_tx_bd_ring[i]));
2785                         out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].
2786                                  last_bd_completed_address,
2787                                  (u32) virt_to_phys(endOfRing));
2788                 } else if (ugeth->ug_info->uf_info.bd_mem_part ==
2789                            MEM_PART_MURAM) {
2790                         out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].bd_ring_base,
2791                                  (u32) immrbar_virt_to_phys(ugeth->
2792                                                             p_tx_bd_ring[i]));
2793                         out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].
2794                                  last_bd_completed_address,
2795                                  (u32) immrbar_virt_to_phys(endOfRing));
2796                 }
2797         }
2798
2799         /* schedulerbasepointer */
2800
2801         if (ug_info->numQueuesTx > 1) {
2802         /* scheduler exists only if more than 1 tx queue */
2803                 ugeth->scheduler_offset =
2804                     qe_muram_alloc(sizeof(struct ucc_geth_scheduler),
2805                                    UCC_GETH_SCHEDULER_ALIGNMENT);
2806                 if (IS_ERR_VALUE(ugeth->scheduler_offset)) {
2807                         ugeth_err
2808                          ("%s: Can not allocate DPRAM memory for p_scheduler.",
2809                              __FUNCTION__);
2810                         ucc_geth_memclean(ugeth);
2811                         return -ENOMEM;
2812                 }
2813
2814                 ugeth->p_scheduler =
2815                     (struct ucc_geth_scheduler *) qe_muram_addr(ugeth->
2816                                                            scheduler_offset);
2817                 out_be32(&ugeth->p_tx_glbl_pram->schedulerbasepointer,
2818                          ugeth->scheduler_offset);
2819                 /* Zero out p_scheduler */
2820                 memset(ugeth->p_scheduler, 0, sizeof(struct ucc_geth_scheduler));
2821
2822                 /* Set values in scheduler */
2823                 out_be32(&ugeth->p_scheduler->mblinterval,
2824                          ug_info->mblinterval);
2825                 out_be16(&ugeth->p_scheduler->nortsrbytetime,
2826                          ug_info->nortsrbytetime);
2827                 ugeth->p_scheduler->fracsiz = ug_info->fracsiz;
2828                 ugeth->p_scheduler->strictpriorityq = ug_info->strictpriorityq;
2829                 ugeth->p_scheduler->txasap = ug_info->txasap;
2830                 ugeth->p_scheduler->extrabw = ug_info->extrabw;
2831                 for (i = 0; i < NUM_TX_QUEUES; i++)
2832                         ugeth->p_scheduler->weightfactor[i] =
2833                             ug_info->weightfactor[i];
2834
2835                 /* Set pointers to cpucount registers in scheduler */
2836                 ugeth->p_cpucount[0] = &(ugeth->p_scheduler->cpucount0);
2837                 ugeth->p_cpucount[1] = &(ugeth->p_scheduler->cpucount1);
2838                 ugeth->p_cpucount[2] = &(ugeth->p_scheduler->cpucount2);
2839                 ugeth->p_cpucount[3] = &(ugeth->p_scheduler->cpucount3);
2840                 ugeth->p_cpucount[4] = &(ugeth->p_scheduler->cpucount4);
2841                 ugeth->p_cpucount[5] = &(ugeth->p_scheduler->cpucount5);
2842                 ugeth->p_cpucount[6] = &(ugeth->p_scheduler->cpucount6);
2843                 ugeth->p_cpucount[7] = &(ugeth->p_scheduler->cpucount7);
2844         }
2845
2846         /* schedulerbasepointer */
2847         /* TxRMON_PTR (statistics) */
2848         if (ug_info->
2849             statisticsMode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) {
2850                 ugeth->tx_fw_statistics_pram_offset =
2851                     qe_muram_alloc(sizeof
2852                                    (struct ucc_geth_tx_firmware_statistics_pram),
2853                                    UCC_GETH_TX_STATISTICS_ALIGNMENT);
2854                 if (IS_ERR_VALUE(ugeth->tx_fw_statistics_pram_offset)) {
2855                         ugeth_err
2856                             ("%s: Can not allocate DPRAM memory for"
2857                                 " p_tx_fw_statistics_pram.", __FUNCTION__);
2858                         ucc_geth_memclean(ugeth);
2859                         return -ENOMEM;
2860                 }
2861                 ugeth->p_tx_fw_statistics_pram =
2862                     (struct ucc_geth_tx_firmware_statistics_pram *)
2863                     qe_muram_addr(ugeth->tx_fw_statistics_pram_offset);
2864                 /* Zero out p_tx_fw_statistics_pram */
2865                 memset(ugeth->p_tx_fw_statistics_pram,
2866                        0, sizeof(struct ucc_geth_tx_firmware_statistics_pram));
2867         }
2868
2869         /* temoder */
2870         /* Already has speed set */
2871
2872         if (ug_info->numQueuesTx > 1)
2873                 temoder |= TEMODER_SCHEDULER_ENABLE;
2874         if (ug_info->ipCheckSumGenerate)
2875                 temoder |= TEMODER_IP_CHECKSUM_GENERATE;
2876         temoder |= ((ug_info->numQueuesTx - 1) << TEMODER_NUM_OF_QUEUES_SHIFT);
2877         out_be16(&ugeth->p_tx_glbl_pram->temoder, temoder);
2878
2879         test = in_be16(&ugeth->p_tx_glbl_pram->temoder);
2880
2881         /* Function code register value to be used later */
2882         function_code = QE_BMR_BYTE_ORDER_BO_MOT | UCC_FAST_FUNCTION_CODE_GBL;
2883         /* Required for QE */
2884
2885         /* function code register */
2886         out_be32(&ugeth->p_tx_glbl_pram->tstate, ((u32) function_code) << 24);
2887
2888         /* Rx global PRAM */
2889         /* Allocate global rx parameter RAM page */
2890         ugeth->rx_glbl_pram_offset =
2891             qe_muram_alloc(sizeof(struct ucc_geth_rx_global_pram),
2892                            UCC_GETH_RX_GLOBAL_PRAM_ALIGNMENT);
2893         if (IS_ERR_VALUE(ugeth->rx_glbl_pram_offset)) {
2894                 ugeth_err
2895                     ("%s: Can not allocate DPRAM memory for p_rx_glbl_pram.",
2896                      __FUNCTION__);
2897                 ucc_geth_memclean(ugeth);
2898                 return -ENOMEM;
2899         }
2900         ugeth->p_rx_glbl_pram =
2901             (struct ucc_geth_rx_global_pram *) qe_muram_addr(ugeth->
2902                                                         rx_glbl_pram_offset);
2903         /* Zero out p_rx_glbl_pram */
2904         memset(ugeth->p_rx_glbl_pram, 0, sizeof(struct ucc_geth_rx_global_pram));
2905
2906         /* Fill global PRAM */
2907
2908         /* RQPTR */
2909         /* Size varies with number of Rx threads */
2910         ugeth->thread_dat_rx_offset =
2911             qe_muram_alloc(numThreadsRxNumerical *
2912                            sizeof(struct ucc_geth_thread_data_rx),
2913                            UCC_GETH_THREAD_DATA_ALIGNMENT);
2914         if (IS_ERR_VALUE(ugeth->thread_dat_rx_offset)) {
2915                 ugeth_err
2916                     ("%s: Can not allocate DPRAM memory for p_thread_data_rx.",
2917                      __FUNCTION__);
2918                 ucc_geth_memclean(ugeth);
2919                 return -ENOMEM;
2920         }
2921
2922         ugeth->p_thread_data_rx =
2923             (struct ucc_geth_thread_data_rx *) qe_muram_addr(ugeth->
2924                                                         thread_dat_rx_offset);
2925         out_be32(&ugeth->p_rx_glbl_pram->rqptr, ugeth->thread_dat_rx_offset);
2926
2927         /* typeorlen */
2928         out_be16(&ugeth->p_rx_glbl_pram->typeorlen, ug_info->typeorlen);
2929
2930         /* rxrmonbaseptr (statistics) */
2931         if (ug_info->
2932             statisticsMode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX) {
2933                 ugeth->rx_fw_statistics_pram_offset =
2934                     qe_muram_alloc(sizeof
2935                                    (struct ucc_geth_rx_firmware_statistics_pram),
2936                                    UCC_GETH_RX_STATISTICS_ALIGNMENT);
2937                 if (IS_ERR_VALUE(ugeth->rx_fw_statistics_pram_offset)) {
2938                         ugeth_err
2939                                 ("%s: Can not allocate DPRAM memory for"
2940                                 " p_rx_fw_statistics_pram.", __FUNCTION__);
2941                         ucc_geth_memclean(ugeth);
2942                         return -ENOMEM;
2943                 }
2944                 ugeth->p_rx_fw_statistics_pram =
2945                     (struct ucc_geth_rx_firmware_statistics_pram *)
2946                     qe_muram_addr(ugeth->rx_fw_statistics_pram_offset);
2947                 /* Zero out p_rx_fw_statistics_pram */
2948                 memset(ugeth->p_rx_fw_statistics_pram, 0,
2949                        sizeof(struct ucc_geth_rx_firmware_statistics_pram));
2950         }
2951
2952         /* intCoalescingPtr */
2953
2954         /* Size varies with number of Rx queues */
2955         ugeth->rx_irq_coalescing_tbl_offset =
2956             qe_muram_alloc(ug_info->numQueuesRx *
2957                            sizeof(struct ucc_geth_rx_interrupt_coalescing_entry)
2958                            + 4, UCC_GETH_RX_INTERRUPT_COALESCING_ALIGNMENT);
2959         if (IS_ERR_VALUE(ugeth->rx_irq_coalescing_tbl_offset)) {
2960                 ugeth_err
2961                     ("%s: Can not allocate DPRAM memory for"
2962                         " p_rx_irq_coalescing_tbl.", __FUNCTION__);
2963                 ucc_geth_memclean(ugeth);
2964                 return -ENOMEM;
2965         }
2966
2967         ugeth->p_rx_irq_coalescing_tbl =
2968             (struct ucc_geth_rx_interrupt_coalescing_table *)
2969             qe_muram_addr(ugeth->rx_irq_coalescing_tbl_offset);
2970         out_be32(&ugeth->p_rx_glbl_pram->intcoalescingptr,
2971                  ugeth->rx_irq_coalescing_tbl_offset);
2972
2973         /* Fill interrupt coalescing table */
2974         for (i = 0; i < ug_info->numQueuesRx; i++) {
2975                 out_be32(&ugeth->p_rx_irq_coalescing_tbl->coalescingentry[i].
2976                          interruptcoalescingmaxvalue,
2977                          ug_info->interruptcoalescingmaxvalue[i]);
2978                 out_be32(&ugeth->p_rx_irq_coalescing_tbl->coalescingentry[i].
2979                          interruptcoalescingcounter,
2980                          ug_info->interruptcoalescingmaxvalue[i]);
2981         }
2982
2983         /* MRBLR */
2984         init_max_rx_buff_len(uf_info->max_rx_buf_length,
2985                              &ugeth->p_rx_glbl_pram->mrblr);
2986         /* MFLR */
2987         out_be16(&ugeth->p_rx_glbl_pram->mflr, ug_info->maxFrameLength);
2988         /* MINFLR */
2989         init_min_frame_len(ug_info->minFrameLength,
2990                            &ugeth->p_rx_glbl_pram->minflr,
2991                            &ugeth->p_rx_glbl_pram->mrblr);
2992         /* MAXD1 */
2993         out_be16(&ugeth->p_rx_glbl_pram->maxd1, ug_info->maxD1Length);
2994         /* MAXD2 */
2995         out_be16(&ugeth->p_rx_glbl_pram->maxd2, ug_info->maxD2Length);
2996
2997         /* l2qt */
2998         l2qt = 0;
2999         for (i = 0; i < UCC_GETH_VLAN_PRIORITY_MAX; i++)
3000                 l2qt |= (ug_info->l2qt[i] << (28 - 4 * i));
3001         out_be32(&ugeth->p_rx_glbl_pram->l2qt, l2qt);
3002
3003         /* l3qt */
3004         for (j = 0; j < UCC_GETH_IP_PRIORITY_MAX; j += 8) {
3005                 l3qt = 0;
3006                 for (i = 0; i < 8; i++)
3007                         l3qt |= (ug_info->l3qt[j + i] << (28 - 4 * i));
3008                 out_be32(&ugeth->p_rx_glbl_pram->l3qt[j/8], l3qt);
3009         }
3010
3011         /* vlantype */
3012         out_be16(&ugeth->p_rx_glbl_pram->vlantype, ug_info->vlantype);
3013
3014         /* vlantci */
3015         out_be16(&ugeth->p_rx_glbl_pram->vlantci, ug_info->vlantci);
3016
3017         /* ecamptr */
3018         out_be32(&ugeth->p_rx_glbl_pram->ecamptr, ug_info->ecamptr);
3019
3020         /* RBDQPTR */
3021         /* Size varies with number of Rx queues */
3022         ugeth->rx_bd_qs_tbl_offset =
3023             qe_muram_alloc(ug_info->numQueuesRx *
3024                            (sizeof(struct ucc_geth_rx_bd_queues_entry) +
3025                             sizeof(struct ucc_geth_rx_prefetched_bds)),
3026                            UCC_GETH_RX_BD_QUEUES_ALIGNMENT);
3027         if (IS_ERR_VALUE(ugeth->rx_bd_qs_tbl_offset)) {
3028                 ugeth_err
3029                     ("%s: Can not allocate DPRAM memory for p_rx_bd_qs_tbl.",
3030                      __FUNCTION__);
3031                 ucc_geth_memclean(ugeth);
3032                 return -ENOMEM;
3033         }
3034
3035         ugeth->p_rx_bd_qs_tbl =
3036             (struct ucc_geth_rx_bd_queues_entry *) qe_muram_addr(ugeth->
3037                                     rx_bd_qs_tbl_offset);
3038         out_be32(&ugeth->p_rx_glbl_pram->rbdqptr, ugeth->rx_bd_qs_tbl_offset);
3039         /* Zero out p_rx_bd_qs_tbl */
3040         memset(ugeth->p_rx_bd_qs_tbl,
3041                0,
3042                ug_info->numQueuesRx * (sizeof(struct ucc_geth_rx_bd_queues_entry) +
3043                                        sizeof(struct ucc_geth_rx_prefetched_bds)));
3044
3045         /* Setup the table */
3046         /* Assume BD rings are already established */
3047         for (i = 0; i < ug_info->numQueuesRx; i++) {
3048                 if (ugeth->ug_info->uf_info.bd_mem_part == MEM_PART_SYSTEM) {
3049                         out_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
3050                                  (u32) virt_to_phys(ugeth->p_rx_bd_ring[i]));
3051                 } else if (ugeth->ug_info->uf_info.bd_mem_part ==
3052                            MEM_PART_MURAM) {
3053                         out_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
3054                                  (u32) immrbar_virt_to_phys(ugeth->
3055                                                             p_rx_bd_ring[i]));
3056                 }
3057                 /* rest of fields handled by QE */
3058         }
3059
3060         /* remoder */
3061         /* Already has speed set */
3062
3063         if (ugeth->rx_extended_features)
3064                 remoder |= REMODER_RX_EXTENDED_FEATURES;
3065         if (ug_info->rxExtendedFiltering)
3066                 remoder |= REMODER_RX_EXTENDED_FILTERING;
3067         if (ug_info->dynamicMaxFrameLength)
3068                 remoder |= REMODER_DYNAMIC_MAX_FRAME_LENGTH;
3069         if (ug_info->dynamicMinFrameLength)
3070                 remoder |= REMODER_DYNAMIC_MIN_FRAME_LENGTH;
3071         remoder |=
3072             ug_info->vlanOperationTagged << REMODER_VLAN_OPERATION_TAGGED_SHIFT;
3073         remoder |=
3074             ug_info->
3075             vlanOperationNonTagged << REMODER_VLAN_OPERATION_NON_TAGGED_SHIFT;
3076         remoder |= ug_info->rxQoSMode << REMODER_RX_QOS_MODE_SHIFT;
3077         remoder |= ((ug_info->numQueuesRx - 1) << REMODER_NUM_OF_QUEUES_SHIFT);
3078         if (ug_info->ipCheckSumCheck)
3079                 remoder |= REMODER_IP_CHECKSUM_CHECK;
3080         if (ug_info->ipAddressAlignment)
3081                 remoder |= REMODER_IP_ADDRESS_ALIGNMENT;
3082         out_be32(&ugeth->p_rx_glbl_pram->remoder, remoder);
3083
3084         /* Note that this function must be called */
3085         /* ONLY AFTER p_tx_fw_statistics_pram */
3086         /* andp_UccGethRxFirmwareStatisticsPram are allocated ! */
3087         init_firmware_statistics_gathering_mode((ug_info->
3088                 statisticsMode &
3089                 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX),
3090                 (ug_info->statisticsMode &
3091                 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX),
3092                 &ugeth->p_tx_glbl_pram->txrmonbaseptr,
3093                 ugeth->tx_fw_statistics_pram_offset,
3094                 &ugeth->p_rx_glbl_pram->rxrmonbaseptr,
3095                 ugeth->rx_fw_statistics_pram_offset,
3096                 &ugeth->p_tx_glbl_pram->temoder,
3097                 &ugeth->p_rx_glbl_pram->remoder);
3098
3099         /* function code register */
3100         ugeth->p_rx_glbl_pram->rstate = function_code;
3101
3102         /* initialize extended filtering */
3103         if (ug_info->rxExtendedFiltering) {
3104                 if (!ug_info->extendedFilteringChainPointer) {
3105                         ugeth_err("%s: Null Extended Filtering Chain Pointer.",
3106                                   __FUNCTION__);
3107                         ucc_geth_memclean(ugeth);
3108                         return -EINVAL;
3109                 }
3110
3111                 /* Allocate memory for extended filtering Mode Global
3112                 Parameters */
3113                 ugeth->exf_glbl_param_offset =
3114                     qe_muram_alloc(sizeof(struct ucc_geth_exf_global_pram),
3115                 UCC_GETH_RX_EXTENDED_FILTERING_GLOBAL_PARAMETERS_ALIGNMENT);
3116                 if (IS_ERR_VALUE(ugeth->exf_glbl_param_offset)) {
3117                         ugeth_err
3118                                 ("%s: Can not allocate DPRAM memory for"
3119                                 " p_exf_glbl_param.", __FUNCTION__);
3120                         ucc_geth_memclean(ugeth);
3121                         return -ENOMEM;
3122                 }
3123
3124                 ugeth->p_exf_glbl_param =
3125                     (struct ucc_geth_exf_global_pram *) qe_muram_addr(ugeth->
3126                                  exf_glbl_param_offset);
3127                 out_be32(&ugeth->p_rx_glbl_pram->exfGlobalParam,
3128                          ugeth->exf_glbl_param_offset);
3129                 out_be32(&ugeth->p_exf_glbl_param->l2pcdptr,
3130                          (u32) ug_info->extendedFilteringChainPointer);
3131
3132         } else {                /* initialize 82xx style address filtering */
3133
3134                 /* Init individual address recognition registers to disabled */
3135
3136                 for (j = 0; j < NUM_OF_PADDRS; j++)
3137                         ugeth_82xx_filtering_clear_addr_in_paddr(ugeth, (u8) j);
3138
3139                 p_82xx_addr_filt =
3140                     (struct ucc_geth_82xx_address_filtering_pram *) ugeth->
3141                     p_rx_glbl_pram->addressfiltering;
3142
3143                 ugeth_82xx_filtering_clear_all_addr_in_hash(ugeth,
3144                         ENET_ADDR_TYPE_GROUP);
3145                 ugeth_82xx_filtering_clear_all_addr_in_hash(ugeth,
3146                         ENET_ADDR_TYPE_INDIVIDUAL);
3147         }
3148
3149         /*
3150          * Initialize UCC at QE level
3151          */
3152
3153         command = QE_INIT_TX_RX;
3154
3155         /* Allocate shadow InitEnet command parameter structure.
3156          * This is needed because after the InitEnet command is executed,
3157          * the structure in DPRAM is released, because DPRAM is a premium
3158          * resource.
3159          * This shadow structure keeps a copy of what was done so that the
3160          * allocated resources can be released when the channel is freed.
3161          */
3162         if (!(ugeth->p_init_enet_param_shadow =
3163               kmalloc(sizeof(struct ucc_geth_init_pram), GFP_KERNEL))) {
3164                 ugeth_err
3165                     ("%s: Can not allocate memory for"
3166                         " p_UccInitEnetParamShadows.", __FUNCTION__);
3167                 ucc_geth_memclean(ugeth);
3168                 return -ENOMEM;
3169         }
3170         /* Zero out *p_init_enet_param_shadow */
3171         memset((char *)ugeth->p_init_enet_param_shadow,
3172                0, sizeof(struct ucc_geth_init_pram));
3173
3174         /* Fill shadow InitEnet command parameter structure */
3175
3176         ugeth->p_init_enet_param_shadow->resinit1 =
3177             ENET_INIT_PARAM_MAGIC_RES_INIT1;
3178         ugeth->p_init_enet_param_shadow->resinit2 =
3179             ENET_INIT_PARAM_MAGIC_RES_INIT2;
3180         ugeth->p_init_enet_param_shadow->resinit3 =
3181             ENET_INIT_PARAM_MAGIC_RES_INIT3;
3182         ugeth->p_init_enet_param_shadow->resinit4 =
3183             ENET_INIT_PARAM_MAGIC_RES_INIT4;
3184         ugeth->p_init_enet_param_shadow->resinit5 =
3185             ENET_INIT_PARAM_MAGIC_RES_INIT5;
3186         ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
3187             ((u32) ug_info->numThreadsRx) << ENET_INIT_PARAM_RGF_SHIFT;
3188         ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
3189             ((u32) ug_info->numThreadsTx) << ENET_INIT_PARAM_TGF_SHIFT;
3190
3191         ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
3192             ugeth->rx_glbl_pram_offset | ug_info->riscRx;
3193         if ((ug_info->largestexternallookupkeysize !=
3194              QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_NONE)
3195             && (ug_info->largestexternallookupkeysize !=
3196                 QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_8_BYTES)
3197             && (ug_info->largestexternallookupkeysize !=
3198                 QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_16_BYTES)) {
3199                 ugeth_err("%s: Invalid largest External Lookup Key Size.",
3200                           __FUNCTION__);
3201                 ucc_geth_memclean(ugeth);
3202                 return -EINVAL;
3203         }
3204         ugeth->p_init_enet_param_shadow->largestexternallookupkeysize =
3205             ug_info->largestexternallookupkeysize;
3206         size = sizeof(struct ucc_geth_thread_rx_pram);
3207         if (ug_info->rxExtendedFiltering) {
3208                 size += THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING;
3209                 if (ug_info->largestexternallookupkeysize ==
3210                     QE_FLTR_TABLE_LOOKUP_KEY_SIZE_8_BYTES)
3211                         size +=
3212                             THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_8;
3213                 if (ug_info->largestexternallookupkeysize ==
3214                     QE_FLTR_TABLE_LOOKUP_KEY_SIZE_16_BYTES)
3215                         size +=
3216                             THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_16;
3217         }
3218
3219         if ((ret_val = fill_init_enet_entries(ugeth, &(ugeth->
3220                 p_init_enet_param_shadow->rxthread[0]),
3221                 (u8) (numThreadsRxNumerical + 1)
3222                 /* Rx needs one extra for terminator */
3223                 , size, UCC_GETH_THREAD_RX_PRAM_ALIGNMENT,
3224                 ug_info->riscRx, 1)) != 0) {
3225                         ugeth_err("%s: Can not fill p_init_enet_param_shadow.",
3226                                 __FUNCTION__);
3227                 ucc_geth_memclean(ugeth);
3228                 return ret_val;
3229         }
3230
3231         ugeth->p_init_enet_param_shadow->txglobal =
3232             ugeth->tx_glbl_pram_offset | ug_info->riscTx;
3233         if ((ret_val =
3234              fill_init_enet_entries(ugeth,
3235                                     &(ugeth->p_init_enet_param_shadow->
3236                                       txthread[0]), numThreadsTxNumerical,
3237                                     sizeof(struct ucc_geth_thread_tx_pram),
3238                                     UCC_GETH_THREAD_TX_PRAM_ALIGNMENT,
3239                                     ug_info->riscTx, 0)) != 0) {
3240                 ugeth_err("%s: Can not fill p_init_enet_param_shadow.",
3241                           __FUNCTION__);
3242                 ucc_geth_memclean(ugeth);
3243                 return ret_val;
3244         }
3245
3246         /* Load Rx bds with buffers */
3247         for (i = 0; i < ug_info->numQueuesRx; i++) {
3248                 if ((ret_val = rx_bd_buffer_set(ugeth, (u8) i)) != 0) {
3249                         ugeth_err("%s: Can not fill Rx bds with buffers.",
3250                                   __FUNCTION__);
3251                         ucc_geth_memclean(ugeth);
3252                         return ret_val;
3253                 }
3254         }
3255
3256         /* Allocate InitEnet command parameter structure */
3257         init_enet_pram_offset = qe_muram_alloc(sizeof(struct ucc_geth_init_pram), 4);
3258         if (IS_ERR_VALUE(init_enet_pram_offset)) {
3259                 ugeth_err
3260                     ("%s: Can not allocate DPRAM memory for p_init_enet_pram.",
3261                      __FUNCTION__);
3262                 ucc_geth_memclean(ugeth);
3263                 return -ENOMEM;
3264         }
3265         p_init_enet_pram =
3266             (struct ucc_geth_init_pram *) qe_muram_addr(init_enet_pram_offset);
3267
3268         /* Copy shadow InitEnet command parameter structure into PRAM */
3269         p_init_enet_pram->resinit1 = ugeth->p_init_enet_param_shadow->resinit1;
3270         p_init_enet_pram->resinit2 = ugeth->p_init_enet_param_shadow->resinit2;
3271         p_init_enet_pram->resinit3 = ugeth->p_init_enet_param_shadow->resinit3;
3272         p_init_enet_pram->resinit4 = ugeth->p_init_enet_param_shadow->resinit4;
3273         out_be16(&p_init_enet_pram->resinit5,
3274                  ugeth->p_init_enet_param_shadow->resinit5);
3275         p_init_enet_pram->largestexternallookupkeysize =
3276             ugeth->p_init_enet_param_shadow->largestexternallookupkeysize;
3277         out_be32(&p_init_enet_pram->rgftgfrxglobal,
3278                  ugeth->p_init_enet_param_shadow->rgftgfrxglobal);
3279         for (i = 0; i < ENET_INIT_PARAM_MAX_ENTRIES_RX; i++)
3280                 out_be32(&p_init_enet_pram->rxthread[i],
3281                          ugeth->p_init_enet_param_shadow->rxthread[i]);
3282         out_be32(&p_init_enet_pram->txglobal,
3283                  ugeth->p_init_enet_param_shadow->txglobal);
3284         for (i = 0; i < ENET_INIT_PARAM_MAX_ENTRIES_TX; i++)
3285                 out_be32(&p_init_enet_pram->txthread[i],
3286                          ugeth->p_init_enet_param_shadow->txthread[i]);
3287
3288         /* Issue QE command */
3289         cecr_subblock =
3290             ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
3291         qe_issue_cmd(command, cecr_subblock, QE_CR_PROTOCOL_ETHERNET,
3292                      init_enet_pram_offset);
3293
3294         /* Free InitEnet command parameter */
3295         qe_muram_free(init_enet_pram_offset);
3296
3297         return 0;
3298 }
3299
3300 /* returns a net_device_stats structure pointer */
3301 static struct net_device_stats *ucc_geth_get_stats(struct net_device *dev)
3302 {
3303         struct ucc_geth_private *ugeth = netdev_priv(dev);
3304
3305         return &(ugeth->stats);
3306 }
3307
3308 /* ucc_geth_timeout gets called when a packet has not been
3309  * transmitted after a set amount of time.
3310  * For now, assume that clearing out all the structures, and
3311  * starting over will fix the problem. */
3312 static void ucc_geth_timeout(struct net_device *dev)
3313 {
3314         struct ucc_geth_private *ugeth = netdev_priv(dev);
3315
3316         ugeth_vdbg("%s: IN", __FUNCTION__);
3317
3318         ugeth->stats.tx_errors++;
3319
3320         ugeth_dump_regs(ugeth);
3321
3322         if (dev->flags & IFF_UP) {
3323                 ucc_geth_stop(ugeth);
3324                 ucc_geth_startup(ugeth);
3325         }
3326
3327         netif_schedule(dev);
3328 }
3329
3330 /* This is called by the kernel when a frame is ready for transmission. */
3331 /* It is pointed to by the dev->hard_start_xmit function pointer */
3332 static int ucc_geth_start_xmit(struct sk_buff *skb, struct net_device *dev)
3333 {
3334         struct ucc_geth_private *ugeth = netdev_priv(dev);
3335 #ifdef CONFIG_UGETH_TX_ON_DEMAND
3336         struct ucc_fast_private *uccf;
3337 #endif
3338         u8 *bd;                 /* BD pointer */
3339         u32 bd_status;
3340         u8 txQ = 0;
3341
3342         ugeth_vdbg("%s: IN", __FUNCTION__);
3343
3344         spin_lock_irq(&ugeth->lock);
3345
3346         ugeth->stats.tx_bytes += skb->len;
3347
3348         /* Start from the next BD that should be filled */
3349         bd = ugeth->txBd[txQ];
3350         bd_status = in_be32((u32 *)bd);
3351         /* Save the skb pointer so we can free it later */
3352         ugeth->tx_skbuff[txQ][ugeth->skb_curtx[txQ]] = skb;
3353
3354         /* Update the current skb pointer (wrapping if this was the last) */
3355         ugeth->skb_curtx[txQ] =
3356             (ugeth->skb_curtx[txQ] +
3357              1) & TX_RING_MOD_MASK(ugeth->ug_info->bdRingLenTx[txQ]);
3358
3359         /* set up the buffer descriptor */
3360         out_be32(&((struct qe_bd *)bd)->buf,
3361                       dma_map_single(NULL, skb->data, skb->len, DMA_TO_DEVICE));
3362
3363         /* printk(KERN_DEBUG"skb->data is 0x%x\n",skb->data); */
3364
3365         bd_status = (bd_status & T_W) | T_R | T_I | T_L | skb->len;
3366
3367         /* set bd status and length */
3368         out_be32((u32 *)bd, bd_status);
3369
3370         dev->trans_start = jiffies;
3371
3372         /* Move to next BD in the ring */
3373         if (!(bd_status & T_W))
3374                 bd += sizeof(struct qe_bd);
3375         else
3376                 bd = ugeth->p_tx_bd_ring[txQ];
3377
3378         /* If the next BD still needs to be cleaned up, then the bds
3379            are full.  We need to tell the kernel to stop sending us stuff. */
3380         if (bd == ugeth->confBd[txQ]) {
3381                 if (!netif_queue_stopped(dev))
3382                         netif_stop_queue(dev);
3383         }
3384
3385         ugeth->txBd[txQ] = bd;
3386
3387         if (ugeth->p_scheduler) {
3388                 ugeth->cpucount[txQ]++;
3389                 /* Indicate to QE that there are more Tx bds ready for
3390                 transmission */
3391                 /* This is done by writing a running counter of the bd
3392                 count to the scheduler PRAM. */
3393                 out_be16(ugeth->p_cpucount[txQ], ugeth->cpucount[txQ]);
3394         }
3395
3396 #ifdef CONFIG_UGETH_TX_ON_DEMAND
3397         uccf = ugeth->uccf;
3398         out_be16(uccf->p_utodr, UCC_FAST_TOD);
3399 #endif
3400         spin_unlock_irq(&ugeth->lock);
3401
3402         return 0;
3403 }
3404
3405 static int ucc_geth_rx(struct ucc_geth_private *ugeth, u8 rxQ, int rx_work_limit)
3406 {
3407         struct sk_buff *skb;
3408         u8 *bd;
3409         u16 length, howmany = 0;
3410         u32 bd_status;
3411         u8 *bdBuffer;
3412
3413         ugeth_vdbg("%s: IN", __FUNCTION__);
3414
3415         /* collect received buffers */
3416         bd = ugeth->rxBd[rxQ];
3417
3418         bd_status = in_be32((u32 *)bd);
3419
3420         /* while there are received buffers and BD is full (~R_E) */
3421         while (!((bd_status & (R_E)) || (--rx_work_limit < 0))) {
3422                 bdBuffer = (u8 *) in_be32(&((struct qe_bd *)bd)->buf);
3423                 length = (u16) ((bd_status & BD_LENGTH_MASK) - 4);
3424                 skb = ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]];
3425
3426                 /* determine whether buffer is first, last, first and last
3427                 (single buffer frame) or middle (not first and not last) */
3428                 if (!skb ||
3429                     (!(bd_status & (R_F | R_L))) ||
3430                     (bd_status & R_ERRORS_FATAL)) {
3431                         ugeth_vdbg("%s, %d: ERROR!!! skb - 0x%08x",
3432                                    __FUNCTION__, __LINE__, (u32) skb);
3433                         if (skb)
3434                                 dev_kfree_skb_any(skb);
3435
3436                         ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]] = NULL;
3437                         ugeth->stats.rx_dropped++;
3438                 } else {
3439                         ugeth->stats.rx_packets++;
3440                         howmany++;
3441
3442                         /* Prep the skb for the packet */
3443                         skb_put(skb, length);
3444
3445                         /* Tell the skb what kind of packet this is */
3446                         skb->protocol = eth_type_trans(skb, ugeth->dev);
3447
3448                         ugeth->stats.rx_bytes += length;
3449                         /* Send the packet up the stack */
3450 #ifdef CONFIG_UGETH_NAPI
3451                         netif_receive_skb(skb);
3452 #else
3453                         netif_rx(skb);
3454 #endif                          /* CONFIG_UGETH_NAPI */
3455                 }
3456
3457                 ugeth->dev->last_rx = jiffies;
3458
3459                 skb = get_new_skb(ugeth, bd);
3460                 if (!skb) {
3461                         ugeth_warn("%s: No Rx Data Buffer", __FUNCTION__);
3462                         ugeth->stats.rx_dropped++;
3463                         break;
3464                 }
3465
3466                 ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]] = skb;
3467
3468                 /* update to point at the next skb */
3469                 ugeth->skb_currx[rxQ] =
3470                     (ugeth->skb_currx[rxQ] +
3471                      1) & RX_RING_MOD_MASK(ugeth->ug_info->bdRingLenRx[rxQ]);
3472
3473                 if (bd_status & R_W)
3474                         bd = ugeth->p_rx_bd_ring[rxQ];
3475                 else
3476                         bd += sizeof(struct qe_bd);
3477
3478                 bd_status = in_be32((u32 *)bd);
3479         }
3480
3481         ugeth->rxBd[rxQ] = bd;
3482         return howmany;
3483 }
3484
3485 static int ucc_geth_tx(struct net_device *dev, u8 txQ)
3486 {
3487         /* Start from the next BD that should be filled */
3488         struct ucc_geth_private *ugeth = netdev_priv(dev);
3489         u8 *bd;                 /* BD pointer */
3490         u32 bd_status;
3491
3492         bd = ugeth->confBd[txQ];
3493         bd_status = in_be32((u32 *)bd);
3494
3495         /* Normal processing. */
3496         while ((bd_status & T_R) == 0) {
3497                 /* BD contains already transmitted buffer.   */
3498                 /* Handle the transmitted buffer and release */
3499                 /* the BD to be used with the current frame  */
3500
3501                 if ((bd == ugeth->txBd[txQ]) && (netif_queue_stopped(dev) == 0))
3502                         break;
3503
3504                 ugeth->stats.tx_packets++;
3505
3506                 /* Free the sk buffer associated with this TxBD */
3507                 dev_kfree_skb_irq(ugeth->
3508                                   tx_skbuff[txQ][ugeth->skb_dirtytx[txQ]]);
3509                 ugeth->tx_skbuff[txQ][ugeth->skb_dirtytx[txQ]] = NULL;
3510                 ugeth->skb_dirtytx[txQ] =
3511                     (ugeth->skb_dirtytx[txQ] +
3512                      1) & TX_RING_MOD_MASK(ugeth->ug_info->bdRingLenTx[txQ]);
3513
3514                 /* We freed a buffer, so now we can restart transmission */
3515                 if (netif_queue_stopped(dev))
3516                         netif_wake_queue(dev);
3517
3518                 /* Advance the confirmation BD pointer */
3519                 if (!(bd_status & T_W))
3520                         bd += sizeof(struct qe_bd);
3521                 else
3522                         bd = ugeth->p_tx_bd_ring[txQ];
3523                 bd_status = in_be32((u32 *)bd);
3524         }
3525         ugeth->confBd[txQ] = bd;
3526         return 0;
3527 }
3528
3529 #ifdef CONFIG_UGETH_NAPI
3530 static int ucc_geth_poll(struct net_device *dev, int *budget)
3531 {
3532         struct ucc_geth_private *ugeth = netdev_priv(dev);
3533         struct ucc_geth_info *ug_info;
3534         struct ucc_fast_private *uccf;
3535         int howmany;
3536         u8 i;
3537         int rx_work_limit;
3538         register u32 uccm;
3539
3540         ug_info = ugeth->ug_info;
3541
3542         rx_work_limit = *budget;
3543         if (rx_work_limit > dev->quota)
3544                 rx_work_limit = dev->quota;
3545
3546         howmany = 0;
3547
3548         for (i = 0; i < ug_info->numQueuesRx; i++) {
3549                 howmany += ucc_geth_rx(ugeth, i, rx_work_limit);
3550         }
3551
3552         dev->quota -= howmany;
3553         rx_work_limit -= howmany;
3554         *budget -= howmany;
3555
3556         if (rx_work_limit > 0) {
3557                 netif_rx_complete(dev);
3558                 uccf = ugeth->uccf;
3559                 uccm = in_be32(uccf->p_uccm);
3560                 uccm |= UCCE_RX_EVENTS;
3561                 out_be32(uccf->p_uccm, uccm);
3562         }
3563
3564         return (rx_work_limit > 0) ? 0 : 1;
3565 }
3566 #endif                          /* CONFIG_UGETH_NAPI */
3567
3568 static irqreturn_t ucc_geth_irq_handler(int irq, void *info)
3569 {
3570         struct net_device *dev = (struct net_device *)info;
3571         struct ucc_geth_private *ugeth = netdev_priv(dev);
3572         struct ucc_fast_private *uccf;
3573         struct ucc_geth_info *ug_info;
3574         register u32 ucce;
3575         register u32 uccm;
3576 #ifndef CONFIG_UGETH_NAPI
3577         register u32 rx_mask;
3578 #endif
3579         register u32 tx_mask;
3580         u8 i;
3581
3582         ugeth_vdbg("%s: IN", __FUNCTION__);
3583
3584         if (!ugeth)
3585                 return IRQ_NONE;
3586
3587         uccf = ugeth->uccf;
3588         ug_info = ugeth->ug_info;
3589
3590         /* read and clear events */
3591         ucce = (u32) in_be32(uccf->p_ucce);
3592         uccm = (u32) in_be32(uccf->p_uccm);
3593         ucce &= uccm;
3594         out_be32(uccf->p_ucce, ucce);
3595
3596         /* check for receive events that require processing */
3597         if (ucce & UCCE_RX_EVENTS) {
3598 #ifdef CONFIG_UGETH_NAPI
3599                 if (netif_rx_schedule_prep(dev)) {
3600                 uccm &= ~UCCE_RX_EVENTS;
3601                         out_be32(uccf->p_uccm, uccm);
3602                         __netif_rx_schedule(dev);
3603                 }
3604 #else
3605                 rx_mask = UCCE_RXBF_SINGLE_MASK;
3606                 for (i = 0; i < ug_info->numQueuesRx; i++) {
3607                         if (ucce & rx_mask)
3608                                 ucc_geth_rx(ugeth, i, (int)ugeth->ug_info->bdRingLenRx[i]);
3609                         ucce &= ~rx_mask;
3610                         rx_mask <<= 1;
3611                 }
3612 #endif /* CONFIG_UGETH_NAPI */
3613         }
3614
3615         /* Tx event processing */
3616         if (ucce & UCCE_TX_EVENTS) {
3617                 spin_lock(&ugeth->lock);
3618                 tx_mask = UCCE_TXBF_SINGLE_MASK;
3619                 for (i = 0; i < ug_info->numQueuesTx; i++) {
3620                         if (ucce & tx_mask)
3621                                 ucc_geth_tx(dev, i);
3622                         ucce &= ~tx_mask;
3623                         tx_mask <<= 1;
3624                 }
3625                 spin_unlock(&ugeth->lock);
3626         }
3627
3628         /* Errors and other events */
3629         if (ucce & UCCE_OTHER) {
3630                 if (ucce & UCCE_BSY) {
3631                         ugeth->stats.rx_errors++;
3632                 }
3633                 if (ucce & UCCE_TXE) {
3634                         ugeth->stats.tx_errors++;
3635                 }
3636         }
3637
3638         return IRQ_HANDLED;
3639 }
3640
3641 /* Called when something needs to use the ethernet device */
3642 /* Returns 0 for success. */
3643 static int ucc_geth_open(struct net_device *dev)
3644 {
3645         struct ucc_geth_private *ugeth = netdev_priv(dev);
3646         int err;
3647
3648         ugeth_vdbg("%s: IN", __FUNCTION__);
3649
3650         /* Test station address */
3651         if (dev->dev_addr[0] & ENET_GROUP_ADDR) {
3652                 ugeth_err("%s: Multicast address used for station address"
3653                           " - is this what you wanted?", __FUNCTION__);
3654                 return -EINVAL;
3655         }
3656
3657         err = ucc_struct_init(ugeth);
3658         if (err) {
3659                 ugeth_err("%s: Cannot configure internal struct, aborting.", dev->name);
3660                 return err;
3661         }
3662
3663         err = ucc_geth_startup(ugeth);
3664         if (err) {
3665                 ugeth_err("%s: Cannot configure net device, aborting.",
3666                           dev->name);
3667                 return err;
3668         }
3669
3670         err = adjust_enet_interface(ugeth);
3671         if (err) {
3672                 ugeth_err("%s: Cannot configure net device, aborting.",
3673                           dev->name);
3674                 return err;
3675         }
3676
3677         /*       Set MACSTNADDR1, MACSTNADDR2                */
3678         /* For more details see the hardware spec.           */
3679         init_mac_station_addr_regs(dev->dev_addr[0],
3680                                    dev->dev_addr[1],
3681                                    dev->dev_addr[2],
3682                                    dev->dev_addr[3],
3683                                    dev->dev_addr[4],
3684                                    dev->dev_addr[5],
3685                                    &ugeth->ug_regs->macstnaddr1,
3686                                    &ugeth->ug_regs->macstnaddr2);
3687
3688         err = init_phy(dev);
3689         if (err) {
3690                 ugeth_err("%s: Cannot initialize PHY, aborting.", dev->name);
3691                 return err;
3692         }
3693
3694         phy_start(ugeth->phydev);
3695
3696         err =
3697             request_irq(ugeth->ug_info->uf_info.irq, ucc_geth_irq_handler, 0,
3698                         "UCC Geth", dev);
3699         if (err) {
3700                 ugeth_err("%s: Cannot get IRQ for net device, aborting.",
3701                           dev->name);
3702                 ucc_geth_stop(ugeth);
3703                 return err;
3704         }
3705
3706         err = ugeth_enable(ugeth, COMM_DIR_RX_AND_TX);
3707         if (err) {
3708                 ugeth_err("%s: Cannot enable net device, aborting.", dev->name);
3709                 ucc_geth_stop(ugeth);
3710                 return err;
3711         }
3712
3713         netif_start_queue(dev);
3714
3715         return err;
3716 }
3717
3718 /* Stops the kernel queue, and halts the controller */
3719 static int ucc_geth_close(struct net_device *dev)
3720 {
3721         struct ucc_geth_private *ugeth = netdev_priv(dev);
3722
3723         ugeth_vdbg("%s: IN", __FUNCTION__);
3724
3725         ucc_geth_stop(ugeth);
3726
3727         phy_disconnect(ugeth->phydev);
3728         ugeth->phydev = NULL;
3729
3730         netif_stop_queue(dev);
3731
3732         return 0;
3733 }
3734
3735 const struct ethtool_ops ucc_geth_ethtool_ops = { };
3736
3737 static phy_interface_t to_phy_interface(const char *phy_connection_type)
3738 {
3739         if (strcasecmp(phy_connection_type, "mii") == 0)
3740                 return PHY_INTERFACE_MODE_MII;
3741         if (strcasecmp(phy_connection_type, "gmii") == 0)
3742                 return PHY_INTERFACE_MODE_GMII;
3743         if (strcasecmp(phy_connection_type, "tbi") == 0)
3744                 return PHY_INTERFACE_MODE_TBI;
3745         if (strcasecmp(phy_connection_type, "rmii") == 0)
3746                 return PHY_INTERFACE_MODE_RMII;
3747         if (strcasecmp(phy_connection_type, "rgmii") == 0)
3748                 return PHY_INTERFACE_MODE_RGMII;
3749         if (strcasecmp(phy_connection_type, "rgmii-id") == 0)
3750                 return PHY_INTERFACE_MODE_RGMII_ID;
3751         if (strcasecmp(phy_connection_type, "rtbi") == 0)
3752                 return PHY_INTERFACE_MODE_RTBI;
3753
3754         return PHY_INTERFACE_MODE_MII;
3755 }
3756
3757 static int ucc_geth_probe(struct of_device* ofdev, const struct of_device_id *match)
3758 {
3759         struct device *device = &ofdev->dev;
3760         struct device_node *np = ofdev->node;
3761         struct device_node *mdio;
3762         struct net_device *dev = NULL;
3763         struct ucc_geth_private *ugeth = NULL;
3764         struct ucc_geth_info *ug_info;
3765         struct resource res;
3766         struct device_node *phy;
3767         int err, ucc_num, max_speed = 0;
3768         const phandle *ph;
3769         const unsigned int *prop;
3770         const void *mac_addr;
3771         phy_interface_t phy_interface;
3772         static const int enet_to_speed[] = {
3773                 SPEED_10, SPEED_10, SPEED_10,
3774                 SPEED_100, SPEED_100, SPEED_100,
3775                 SPEED_1000, SPEED_1000, SPEED_1000, SPEED_1000,
3776         };
3777         static const phy_interface_t enet_to_phy_interface[] = {
3778                 PHY_INTERFACE_MODE_MII, PHY_INTERFACE_MODE_RMII,
3779                 PHY_INTERFACE_MODE_RGMII, PHY_INTERFACE_MODE_MII,
3780                 PHY_INTERFACE_MODE_RMII, PHY_INTERFACE_MODE_RGMII,
3781                 PHY_INTERFACE_MODE_GMII, PHY_INTERFACE_MODE_RGMII,
3782                 PHY_INTERFACE_MODE_TBI, PHY_INTERFACE_MODE_RTBI,
3783         };
3784
3785         ugeth_vdbg("%s: IN", __FUNCTION__);
3786
3787         prop = of_get_property(np, "device-id", NULL);
3788         ucc_num = *prop - 1;
3789         if ((ucc_num < 0) || (ucc_num > 7))
3790                 return -ENODEV;
3791
3792         ug_info = &ugeth_info[ucc_num];
3793         ug_info->uf_info.ucc_num = ucc_num;
3794
3795         prop = of_get_property(np, "rx-clock", NULL);
3796         ug_info->uf_info.rx_clock = *prop;
3797         prop = of_get_property(np, "tx-clock", NULL);
3798         ug_info->uf_info.tx_clock = *prop;
3799         err = of_address_to_resource(np, 0, &res);
3800         if (err)
3801                 return -EINVAL;
3802
3803         ug_info->uf_info.regs = res.start;
3804         ug_info->uf_info.irq = irq_of_parse_and_map(np, 0);
3805
3806         ph = of_get_property(np, "phy-handle", NULL);
3807         phy = of_find_node_by_phandle(*ph);
3808
3809         if (phy == NULL)
3810                 return -ENODEV;
3811
3812         /* set the PHY address */
3813         prop = of_get_property(phy, "reg", NULL);
3814         if (prop == NULL)
3815                 return -1;
3816         ug_info->phy_address = *prop;
3817
3818         /* get the phy interface type, or default to MII */
3819         prop = of_get_property(np, "phy-connection-type", NULL);
3820         if (!prop) {
3821                 /* handle interface property present in old trees */
3822                 prop = of_get_property(phy, "interface", NULL);
3823                 if (prop != NULL) {
3824                         phy_interface = enet_to_phy_interface[*prop];
3825                         max_speed = enet_to_speed[*prop];
3826                 } else
3827                         phy_interface = PHY_INTERFACE_MODE_MII;
3828         } else {
3829                 phy_interface = to_phy_interface((const char *)prop);
3830         }
3831
3832         /* get speed, or derive from PHY interface */
3833         if (max_speed == 0)
3834                 switch (phy_interface) {
3835                 case PHY_INTERFACE_MODE_GMII:
3836                 case PHY_INTERFACE_MODE_RGMII:
3837                 case PHY_INTERFACE_MODE_RGMII_ID:
3838                 case PHY_INTERFACE_MODE_TBI:
3839                 case PHY_INTERFACE_MODE_RTBI:
3840                         max_speed = SPEED_1000;
3841                         break;
3842                 default:
3843                         max_speed = SPEED_100;
3844                         break;
3845                 }
3846
3847         if (max_speed == SPEED_1000) {
3848                 /* configure muram FIFOs for gigabit operation */
3849                 ug_info->uf_info.urfs = UCC_GETH_URFS_GIGA_INIT;
3850                 ug_info->uf_info.urfet = UCC_GETH_URFET_GIGA_INIT;
3851                 ug_info->uf_info.urfset = UCC_GETH_URFSET_GIGA_INIT;
3852                 ug_info->uf_info.utfs = UCC_GETH_UTFS_GIGA_INIT;
3853                 ug_info->uf_info.utfet = UCC_GETH_UTFET_GIGA_INIT;
3854                 ug_info->uf_info.utftt = UCC_GETH_UTFTT_GIGA_INIT;
3855         }
3856
3857         /* Set the bus id */
3858         mdio = of_get_parent(phy);
3859
3860         if (mdio == NULL)
3861                 return -1;
3862
3863         err = of_address_to_resource(mdio, 0, &res);
3864         of_node_put(mdio);
3865
3866         if (err)
3867                 return -1;
3868
3869         ug_info->mdio_bus = res.start;
3870
3871         printk(KERN_INFO "ucc_geth: UCC%1d at 0x%8x (irq = %d) \n",
3872                 ug_info->uf_info.ucc_num + 1, ug_info->uf_info.regs,
3873                 ug_info->uf_info.irq);
3874
3875         if (ug_info == NULL) {
3876                 ugeth_err("%s: [%d] Missing additional data!", __FUNCTION__,
3877                           ucc_num);
3878                 return -ENODEV;
3879         }
3880
3881         /* Create an ethernet device instance */
3882         dev = alloc_etherdev(sizeof(*ugeth));
3883
3884         if (dev == NULL)
3885                 return -ENOMEM;
3886
3887         ugeth = netdev_priv(dev);
3888         spin_lock_init(&ugeth->lock);
3889
3890         dev_set_drvdata(device, dev);
3891
3892         /* Set the dev->base_addr to the gfar reg region */
3893         dev->base_addr = (unsigned long)(ug_info->uf_info.regs);
3894
3895         SET_MODULE_OWNER(dev);
3896         SET_NETDEV_DEV(dev, device);
3897
3898         /* Fill in the dev structure */
3899         dev->open = ucc_geth_open;
3900         dev->hard_start_xmit = ucc_geth_start_xmit;
3901         dev->tx_timeout = ucc_geth_timeout;
3902         dev->watchdog_timeo = TX_TIMEOUT;
3903 #ifdef CONFIG_UGETH_NAPI
3904         dev->poll = ucc_geth_poll;
3905         dev->weight = UCC_GETH_DEV_WEIGHT;
3906 #endif                          /* CONFIG_UGETH_NAPI */
3907         dev->stop = ucc_geth_close;
3908         dev->get_stats = ucc_geth_get_stats;
3909 //    dev->change_mtu = ucc_geth_change_mtu;
3910         dev->mtu = 1500;
3911         dev->set_multicast_list = ucc_geth_set_multi;
3912         dev->ethtool_ops = &ucc_geth_ethtool_ops;
3913
3914         ugeth->msg_enable = (NETIF_MSG_IFUP << 1 ) - 1;
3915         ugeth->phy_interface = phy_interface;
3916         ugeth->max_speed = max_speed;
3917
3918         err = register_netdev(dev);
3919         if (err) {
3920                 ugeth_err("%s: Cannot register net device, aborting.",
3921                           dev->name);
3922                 free_netdev(dev);
3923                 return err;
3924         }
3925
3926         mac_addr = of_get_mac_address(np);
3927         if (mac_addr)
3928                 memcpy(dev->dev_addr, mac_addr, 6);
3929
3930         ugeth->ug_info = ug_info;
3931         ugeth->dev = dev;
3932
3933         return 0;
3934 }
3935
3936 static int ucc_geth_remove(struct of_device* ofdev)
3937 {
3938         struct device *device = &ofdev->dev;
3939         struct net_device *dev = dev_get_drvdata(device);
3940         struct ucc_geth_private *ugeth = netdev_priv(dev);
3941
3942         dev_set_drvdata(device, NULL);
3943         ucc_geth_memclean(ugeth);
3944         free_netdev(dev);
3945
3946         return 0;
3947 }
3948
3949 static struct of_device_id ucc_geth_match[] = {
3950         {
3951                 .type = "network",
3952                 .compatible = "ucc_geth",
3953         },
3954         {},
3955 };
3956
3957 MODULE_DEVICE_TABLE(of, ucc_geth_match);
3958
3959 static struct of_platform_driver ucc_geth_driver = {
3960         .name           = DRV_NAME,
3961         .match_table    = ucc_geth_match,
3962         .probe          = ucc_geth_probe,
3963         .remove         = ucc_geth_remove,
3964 };
3965
3966 static int __init ucc_geth_init(void)
3967 {
3968         int i, ret;
3969
3970         ret = uec_mdio_init();
3971
3972         if (ret)
3973                 return ret;
3974
3975         printk(KERN_INFO "ucc_geth: " DRV_DESC "\n");
3976         for (i = 0; i < 8; i++)
3977                 memcpy(&(ugeth_info[i]), &ugeth_primary_info,
3978                        sizeof(ugeth_primary_info));
3979
3980         ret = of_register_platform_driver(&ucc_geth_driver);
3981
3982         if (ret)
3983                 uec_mdio_exit();
3984
3985         return ret;
3986 }
3987
3988 static void __exit ucc_geth_exit(void)
3989 {
3990         of_unregister_platform_driver(&ucc_geth_driver);
3991         uec_mdio_exit();
3992 }
3993
3994 module_init(ucc_geth_init);
3995 module_exit(ucc_geth_exit);
3996
3997 MODULE_AUTHOR("Freescale Semiconductor, Inc");
3998 MODULE_DESCRIPTION(DRV_DESC);
3999 MODULE_VERSION(DRV_VERSION);
4000 MODULE_LICENSE("GPL");