SAFE public projects git trees. - safe/jmp/linux-2.6/blob - drivers/net/ucc_geth.c

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