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"
  50 #define DRV_NAME "ucc_geth"
  51 #define DRV_VERSION "1.1"
  52
  53 #define ugeth_printk(level, format, arg...)  \
  54         printk(level format "\n", ## arg)
  55
  56 #define ugeth_dbg(format, arg...)            \
  57         ugeth_printk(KERN_DEBUG , format , ## arg)
  58 #define ugeth_err(format, arg...)            \
  59         ugeth_printk(KERN_ERR , format , ## arg)
  60 #define ugeth_info(format, arg...)           \
  61         ugeth_printk(KERN_INFO , format , ## arg)
  62 #define ugeth_warn(format, arg...)           \
  63         ugeth_printk(KERN_WARNING , format , ## arg)
  64
  65 #ifdef UGETH_VERBOSE_DEBUG
  66 #define ugeth_vdbg ugeth_dbg
  67 #else
  68 #define ugeth_vdbg(fmt, args...) do { } while (0)
  69 #endif                          /* UGETH_VERBOSE_DEBUG */
  70
  71 static DEFINE_SPINLOCK(ugeth_lock);
  72
  73 static struct ucc_geth_info ugeth_primary_info = {
  74         .uf_info = {
  75                     .bd_mem_part = MEM_PART_SYSTEM,
  76                     .rtsm = UCC_FAST_SEND_IDLES_BETWEEN_FRAMES,
  77                     .max_rx_buf_length = 1536,
  78                     /* adjusted at startup if max-speed 1000 */
  79                     .urfs = UCC_GETH_URFS_INIT,
  80                     .urfet = UCC_GETH_URFET_INIT,
  81                     .urfset = UCC_GETH_URFSET_INIT,
  82                     .utfs = UCC_GETH_UTFS_INIT,
  83                     .utfet = UCC_GETH_UTFET_INIT,
  84                     .utftt = UCC_GETH_UTFTT_INIT,
  85                     .ufpt = 256,
  86                     .mode = UCC_FAST_PROTOCOL_MODE_ETHERNET,
  87                     .ttx_trx = UCC_FAST_GUMR_TRANSPARENT_TTX_TRX_NORMAL,
  88                     .tenc = UCC_FAST_TX_ENCODING_NRZ,
  89                     .renc = UCC_FAST_RX_ENCODING_NRZ,
  90                     .tcrc = UCC_FAST_16_BIT_CRC,
  91                     .synl = UCC_FAST_SYNC_LEN_NOT_USED,
  92                     },
  93         .numQueuesTx = 1,
  94         .numQueuesRx = 1,
  95         .extendedFilteringChainPointer = ((uint32_t) NULL),
  96         .typeorlen = 3072 /*1536 */ ,
  97         .nonBackToBackIfgPart1 = 0x40,
  98         .nonBackToBackIfgPart2 = 0x60,
  99         .miminumInterFrameGapEnforcement = 0x50,
 100         .backToBackInterFrameGap = 0x60,
 101         .mblinterval = 128,
 102         .nortsrbytetime = 5,
 103         .fracsiz = 1,
 104         .strictpriorityq = 0xff,
 105         .altBebTruncation = 0xa,
 106         .excessDefer = 1,
 107         .maxRetransmission = 0xf,
 108         .collisionWindow = 0x37,
 109         .receiveFlowControl = 1,
 110         .maxGroupAddrInHash = 4,
 111         .maxIndAddrInHash = 4,
 112         .prel = 7,
 113         .maxFrameLength = 1518,
 114         .minFrameLength = 64,
 115         .maxD1Length = 1520,
 116         .maxD2Length = 1520,
 117         .vlantype = 0x8100,
 118         .ecamptr = ((uint32_t) NULL),
 119         .eventRegMask = UCCE_OTHER,
 120         .pausePeriod = 0xf000,
 121         .interruptcoalescingmaxvalue = {1, 1, 1, 1, 1, 1, 1, 1},
 122         .bdRingLenTx = {
 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                         TX_BD_RING_LEN},
 131
 132         .bdRingLenRx = {
 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                         RX_BD_RING_LEN},
 141
 142         .numStationAddresses = UCC_GETH_NUM_OF_STATION_ADDRESSES_1,
 143         .largestexternallookupkeysize =
 144             QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_NONE,
 145         .statisticsMode = UCC_GETH_STATISTICS_GATHERING_MODE_NONE,
 146         .vlanOperationTagged = UCC_GETH_VLAN_OPERATION_TAGGED_NOP,
 147         .vlanOperationNonTagged = UCC_GETH_VLAN_OPERATION_NON_TAGGED_NOP,
 148         .rxQoSMode = UCC_GETH_QOS_MODE_DEFAULT,
 149         .aufc = UPSMR_AUTOMATIC_FLOW_CONTROL_MODE_NONE,
 150         .padAndCrc = MACCFG2_PAD_AND_CRC_MODE_PAD_AND_CRC,
 151         .numThreadsTx = UCC_GETH_NUM_OF_THREADS_4,
 152         .numThreadsRx = UCC_GETH_NUM_OF_THREADS_4,
 153         .riscTx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
 154         .riscRx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
 155 };
 156
 157 static struct ucc_geth_info ugeth_info[8];
 158
 159 #ifdef DEBUG
 160 static void mem_disp(u8 *addr, int size)
 161 {
 162         u8 *i;
 163         int size16Aling = (size >> 4) << 4;
 164         int size4Aling = (size >> 2) << 2;
 165         int notAlign = 0;
 166         if (size % 16)
 167                 notAlign = 1;
 168
 169         for (i = addr; (u32) i < (u32) addr + size16Aling; i += 16)
 170                 printk("0x%08x: %08x %08x %08x %08x\r\n",
 171                        (u32) i,
 172                        *((u32 *) (i)),
 173                        *((u32 *) (i + 4)),
 174                        *((u32 *) (i + 8)), *((u32 *) (i + 12)));
 175         if (notAlign == 1)
 176                 printk("0x%08x: ", (u32) i);
 177         for (; (u32) i < (u32) addr + size4Aling; i += 4)
 178                 printk("%08x ", *((u32 *) (i)));
 179         for (; (u32) i < (u32) addr + size; i++)
 180                 printk("%02x", *((u8 *) (i)));
 181         if (notAlign == 1)
 182                 printk("\r\n");
 183 }
 184 #endif /* DEBUG */
 185
 186 #ifdef CONFIG_UGETH_FILTERING
 187 static void enqueue(struct list_head *node, struct list_head *lh)
 188 {
 189         unsigned long flags;
 190
 191         spin_lock_irqsave(&ugeth_lock, flags);
 192         list_add_tail(node, lh);
 193         spin_unlock_irqrestore(&ugeth_lock, flags);
 194 }
 195 #endif /* CONFIG_UGETH_FILTERING */
 196
 197 static struct list_head *dequeue(struct list_head *lh)
 198 {
 199         unsigned long flags;
 200
 201         spin_lock_irqsave(&ugeth_lock, flags);
 202         if (!list_empty(lh)) {
 203                 struct list_head *node = lh->next;
 204                 list_del(node);
 205                 spin_unlock_irqrestore(&ugeth_lock, flags);
 206                 return node;
 207         } else {
 208                 spin_unlock_irqrestore(&ugeth_lock, flags);
 209                 return NULL;
 210         }
 211 }
 212
 213 static struct sk_buff *get_new_skb(struct ucc_geth_private *ugeth, u8 *bd)
 214 {
 215         struct sk_buff *skb = NULL;
 216
 217         skb = dev_alloc_skb(ugeth->ug_info->uf_info.max_rx_buf_length +
 218                                   UCC_GETH_RX_DATA_BUF_ALIGNMENT);
 219
 220         if (skb == NULL)
 221                 return NULL;
 222
 223         /* We need the data buffer to be aligned properly.  We will reserve
 224          * as many bytes as needed to align the data properly
 225          */
 226         skb_reserve(skb,
 227                     UCC_GETH_RX_DATA_BUF_ALIGNMENT -
 228                     (((unsigned)skb->data) & (UCC_GETH_RX_DATA_BUF_ALIGNMENT -
 229                                               1)));
 230
 231         skb->dev = ugeth->dev;
 232
 233         out_be32(&((struct qe_bd *)bd)->buf,
 234                       dma_map_single(NULL,
 235                                      skb->data,
 236                                      ugeth->ug_info->uf_info.max_rx_buf_length +
 237                                      UCC_GETH_RX_DATA_BUF_ALIGNMENT,
 238                                      DMA_FROM_DEVICE));
 239
 240         out_be32((u32 *)bd, (R_E | R_I | (in_be32((u32 *)bd) & R_W)));
 241
 242         return skb;
 243 }
 244
 245 static int rx_bd_buffer_set(struct ucc_geth_private *ugeth, u8 rxQ)
 246 {
 247         u8 *bd;
 248         u32 bd_status;
 249         struct sk_buff *skb;
 250         int i;
 251
 252         bd = ugeth->p_rx_bd_ring[rxQ];
 253         i = 0;
 254
 255         do {
 256                 bd_status = in_be32((u32*)bd);
 257                 skb = get_new_skb(ugeth, bd);
 258
 259                 if (!skb)       /* If can not allocate data buffer,
 260                                 abort. Cleanup will be elsewhere */
 261                         return -ENOMEM;
 262
 263                 ugeth->rx_skbuff[rxQ][i] = skb;
 264
 265                 /* advance the BD pointer */
 266                 bd += sizeof(struct qe_bd);
 267                 i++;
 268         } while (!(bd_status & R_W));
 269
 270         return 0;
 271 }
 272
 273 static int fill_init_enet_entries(struct ucc_geth_private *ugeth,
 274                                   volatile u32 *p_start,
 275                                   u8 num_entries,
 276                                   u32 thread_size,
 277                                   u32 thread_alignment,
 278                                   enum qe_risc_allocation risc,
 279                                   int skip_page_for_first_entry)
 280 {
 281         u32 init_enet_offset;
 282         u8 i;
 283         int snum;
 284
 285         for (i = 0; i < num_entries; i++) {
 286                 if ((snum = qe_get_snum()) < 0) {
 287                         ugeth_err("fill_init_enet_entries: Can not get SNUM.");
 288                         return snum;
 289                 }
 290                 if ((i == 0) && skip_page_for_first_entry)
 291                 /* First entry of Rx does not have page */
 292                         init_enet_offset = 0;
 293                 else {
 294                         init_enet_offset =
 295                             qe_muram_alloc(thread_size, thread_alignment);
 296                         if (IS_MURAM_ERR(init_enet_offset)) {
 297                                 ugeth_err
 298                 ("fill_init_enet_entries: Can not allocate DPRAM memory.");
 299                                 qe_put_snum((u8) snum);
 300                                 return -ENOMEM;
 301                         }
 302                 }
 303                 *(p_start++) =
 304                     ((u8) snum << ENET_INIT_PARAM_SNUM_SHIFT) | init_enet_offset
 305                     | risc;
 306         }
 307
 308         return 0;
 309 }
 310
 311 static int return_init_enet_entries(struct ucc_geth_private *ugeth,
 312                                     volatile u32 *p_start,
 313                                     u8 num_entries,
 314                                     enum qe_risc_allocation risc,
 315                                     int skip_page_for_first_entry)
 316 {
 317         u32 init_enet_offset;
 318         u8 i;
 319         int snum;
 320
 321         for (i = 0; i < num_entries; i++) {
 322                 /* Check that this entry was actually valid --
 323                 needed in case failed in allocations */
 324                 if ((*p_start & ENET_INIT_PARAM_RISC_MASK) == risc) {
 325                         snum =
 326                             (u32) (*p_start & ENET_INIT_PARAM_SNUM_MASK) >>
 327                             ENET_INIT_PARAM_SNUM_SHIFT;
 328                         qe_put_snum((u8) snum);
 329                         if (!((i == 0) && skip_page_for_first_entry)) {
 330                         /* First entry of Rx does not have page */
 331                                 init_enet_offset =
 332                                     (in_be32(p_start) &
 333                                      ENET_INIT_PARAM_PTR_MASK);
 334                                 qe_muram_free(init_enet_offset);
 335                         }
 336                         *(p_start++) = 0;       /* Just for cosmetics */
 337                 }
 338         }
 339
 340         return 0;
 341 }
 342
 343 #ifdef DEBUG
 344 static int dump_init_enet_entries(struct ucc_geth_private *ugeth,
 345                                   volatile u32 *p_start,
 346                                   u8 num_entries,
 347                                   u32 thread_size,
 348                                   enum qe_risc_allocation risc,
 349                                   int skip_page_for_first_entry)
 350 {
 351         u32 init_enet_offset;
 352         u8 i;
 353         int snum;
 354
 355         for (i = 0; i < num_entries; i++) {
 356                 /* Check that this entry was actually valid --
 357                 needed in case failed in allocations */
 358                 if ((*p_start & ENET_INIT_PARAM_RISC_MASK) == risc) {
 359                         snum =
 360                             (u32) (*p_start & ENET_INIT_PARAM_SNUM_MASK) >>
 361                             ENET_INIT_PARAM_SNUM_SHIFT;
 362                         qe_put_snum((u8) snum);
 363                         if (!((i == 0) && skip_page_for_first_entry)) {
 364                         /* First entry of Rx does not have page */
 365                                 init_enet_offset =
 366                                     (in_be32(p_start) &
 367                                      ENET_INIT_PARAM_PTR_MASK);
 368                                 ugeth_info("Init enet entry %d:", i);
 369                                 ugeth_info("Base address: 0x%08x",
 370                                            (u32)
 371                                            qe_muram_addr(init_enet_offset));
 372                                 mem_disp(qe_muram_addr(init_enet_offset),
 373                                          thread_size);
 374                         }
 375                         p_start++;
 376                 }
 377         }
 378
 379         return 0;
 380 }
 381 #endif
 382
 383 #ifdef CONFIG_UGETH_FILTERING
 384 static struct enet_addr_container *get_enet_addr_container(void)
 385 {
 386         struct enet_addr_container *enet_addr_cont;
 387
 388         /* allocate memory */
 389         enet_addr_cont = kmalloc(sizeof(struct enet_addr_container), GFP_KERNEL);
 390         if (!enet_addr_cont) {
 391                 ugeth_err("%s: No memory for enet_addr_container object.",
 392                           __FUNCTION__);
 393                 return NULL;
 394         }
 395
 396         return enet_addr_cont;
 397 }
 398 #endif /* CONFIG_UGETH_FILTERING */
 399
 400 static void put_enet_addr_container(struct enet_addr_container *enet_addr_cont)
 401 {
 402         kfree(enet_addr_cont);
 403 }
 404
 405 static void set_mac_addr(__be16 __iomem *reg, u8 *mac)
 406 {
 407         out_be16(&reg[0], ((u16)mac[5] << 8) | mac[4]);
 408         out_be16(&reg[1], ((u16)mac[3] << 8) | mac[2]);
 409         out_be16(&reg[2], ((u16)mac[1] << 8) | mac[0]);
 410 }
 411
 412 #ifdef CONFIG_UGETH_FILTERING
 413 static int hw_add_addr_in_paddr(struct ucc_geth_private *ugeth,
 414                                 u8 *p_enet_addr, u8 paddr_num)
 415 {
 416         struct ucc_geth_82xx_address_filtering_pram *p_82xx_addr_filt;
 417
 418         if (!(paddr_num < NUM_OF_PADDRS)) {
 419                 ugeth_warn("%s: Illegal paddr_num.", __FUNCTION__);
 420                 return -EINVAL;
 421         }
 422
 423         p_82xx_addr_filt =
 424             (struct ucc_geth_82xx_address_filtering_pram *) ugeth->p_rx_glbl_pram->
 425             addressfiltering;
 426
 427         /* Ethernet frames are defined in Little Endian mode,    */
 428         /* therefore to insert the address we reverse the bytes. */
 429         set_mac_addr(&p_82xx_addr_filt->paddr[paddr_num].h, p_enet_addr);
 430         return 0;
 431 }
 432 #endif /* CONFIG_UGETH_FILTERING */
 433
 434 static int hw_clear_addr_in_paddr(struct ucc_geth_private *ugeth, u8 paddr_num)
 435 {
 436         struct ucc_geth_82xx_address_filtering_pram *p_82xx_addr_filt;
 437
 438         if (!(paddr_num < NUM_OF_PADDRS)) {
 439                 ugeth_warn("%s: Illagel paddr_num.", __FUNCTION__);
 440                 return -EINVAL;
 441         }
 442
 443         p_82xx_addr_filt =
 444             (struct ucc_geth_82xx_address_filtering_pram *) ugeth->p_rx_glbl_pram->
 445             addressfiltering;
 446
 447         /* Writing address ff.ff.ff.ff.ff.ff disables address
 448         recognition for this register */
 449         out_be16(&p_82xx_addr_filt->paddr[paddr_num].h, 0xffff);
 450         out_be16(&p_82xx_addr_filt->paddr[paddr_num].m, 0xffff);
 451         out_be16(&p_82xx_addr_filt->paddr[paddr_num].l, 0xffff);
 452
 453         return 0;
 454 }
 455
 456 static void hw_add_addr_in_hash(struct ucc_geth_private *ugeth,
 457                                 u8 *p_enet_addr)
 458 {
 459         struct ucc_geth_82xx_address_filtering_pram *p_82xx_addr_filt;
 460         u32 cecr_subblock;
 461
 462         p_82xx_addr_filt =
 463             (struct ucc_geth_82xx_address_filtering_pram *) ugeth->p_rx_glbl_pram->
 464             addressfiltering;
 465
 466         cecr_subblock =
 467             ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
 468
 469         /* Ethernet frames are defined in Little Endian mode,
 470         therefor to insert */
 471         /* the address to the hash (Big Endian mode), we reverse the bytes.*/
 472
 473         set_mac_addr(&p_82xx_addr_filt->taddr.h, p_enet_addr);
 474
 475         qe_issue_cmd(QE_SET_GROUP_ADDRESS, cecr_subblock,
 476                      QE_CR_PROTOCOL_ETHERNET, 0);
 477 }
 478
 479 #ifdef CONFIG_UGETH_MAGIC_PACKET
 480 static void magic_packet_detection_enable(struct ucc_geth_private *ugeth)
 481 {
 482         struct ucc_fast_private *uccf;
 483         struct ucc_geth *ug_regs;
 484         u32 maccfg2, uccm;
 485
 486         uccf = ugeth->uccf;
 487         ug_regs = ugeth->ug_regs;
 488
 489         /* Enable interrupts for magic packet detection */
 490         uccm = in_be32(uccf->p_uccm);
 491         uccm |= UCCE_MPD;
 492         out_be32(uccf->p_uccm, uccm);
 493
 494         /* Enable magic packet detection */
 495         maccfg2 = in_be32(&ug_regs->maccfg2);
 496         maccfg2 |= MACCFG2_MPE;
 497         out_be32(&ug_regs->maccfg2, maccfg2);
 498 }
 499
 500 static void magic_packet_detection_disable(struct ucc_geth_private *ugeth)
 501 {
 502         struct ucc_fast_private *uccf;
 503         struct ucc_geth *ug_regs;
 504         u32 maccfg2, uccm;
 505
 506         uccf = ugeth->uccf;
 507         ug_regs = ugeth->ug_regs;
 508
 509         /* Disable interrupts for magic packet detection */
 510         uccm = in_be32(uccf->p_uccm);
 511         uccm &= ~UCCE_MPD;
 512         out_be32(uccf->p_uccm, uccm);
 513
 514         /* Disable magic packet detection */
 515         maccfg2 = in_be32(&ug_regs->maccfg2);
 516         maccfg2 &= ~MACCFG2_MPE;
 517         out_be32(&ug_regs->maccfg2, maccfg2);
 518 }
 519 #endif /* MAGIC_PACKET */
 520
 521 static inline int compare_addr(u8 **addr1, u8 **addr2)
 522 {
 523         return memcmp(addr1, addr2, ENET_NUM_OCTETS_PER_ADDRESS);
 524 }
 525
 526 #ifdef DEBUG
 527 static void get_statistics(struct ucc_geth_private *ugeth,
 528                            struct ucc_geth_tx_firmware_statistics *
 529                            tx_firmware_statistics,
 530                            struct ucc_geth_rx_firmware_statistics *
 531                            rx_firmware_statistics,
 532                            struct ucc_geth_hardware_statistics *hardware_statistics)
 533 {
 534         struct ucc_fast *uf_regs;
 535         struct ucc_geth *ug_regs;
 536         struct ucc_geth_tx_firmware_statistics_pram *p_tx_fw_statistics_pram;
 537         struct ucc_geth_rx_firmware_statistics_pram *p_rx_fw_statistics_pram;
 538
 539         ug_regs = ugeth->ug_regs;
 540         uf_regs = (struct ucc_fast *) ug_regs;
 541         p_tx_fw_statistics_pram = ugeth->p_tx_fw_statistics_pram;
 542         p_rx_fw_statistics_pram = ugeth->p_rx_fw_statistics_pram;
 543
 544         /* Tx firmware only if user handed pointer and driver actually
 545         gathers Tx firmware statistics */
 546         if (tx_firmware_statistics && p_tx_fw_statistics_pram) {
 547                 tx_firmware_statistics->sicoltx =
 548                     in_be32(&p_tx_fw_statistics_pram->sicoltx);
 549                 tx_firmware_statistics->mulcoltx =
 550                     in_be32(&p_tx_fw_statistics_pram->mulcoltx);
 551                 tx_firmware_statistics->latecoltxfr =
 552                     in_be32(&p_tx_fw_statistics_pram->latecoltxfr);
 553                 tx_firmware_statistics->frabortduecol =
 554                     in_be32(&p_tx_fw_statistics_pram->frabortduecol);
 555                 tx_firmware_statistics->frlostinmactxer =
 556                     in_be32(&p_tx_fw_statistics_pram->frlostinmactxer);
 557                 tx_firmware_statistics->carriersenseertx =
 558                     in_be32(&p_tx_fw_statistics_pram->carriersenseertx);
 559                 tx_firmware_statistics->frtxok =
 560                     in_be32(&p_tx_fw_statistics_pram->frtxok);
 561                 tx_firmware_statistics->txfrexcessivedefer =
 562                     in_be32(&p_tx_fw_statistics_pram->txfrexcessivedefer);
 563                 tx_firmware_statistics->txpkts256 =
 564                     in_be32(&p_tx_fw_statistics_pram->txpkts256);
 565                 tx_firmware_statistics->txpkts512 =
 566                     in_be32(&p_tx_fw_statistics_pram->txpkts512);
 567                 tx_firmware_statistics->txpkts1024 =
 568                     in_be32(&p_tx_fw_statistics_pram->txpkts1024);
 569                 tx_firmware_statistics->txpktsjumbo =
 570                     in_be32(&p_tx_fw_statistics_pram->txpktsjumbo);
 571         }
 572
 573         /* Rx firmware only if user handed pointer and driver actually
 574          * gathers Rx firmware statistics */
 575         if (rx_firmware_statistics && p_rx_fw_statistics_pram) {
 576                 int i;
 577                 rx_firmware_statistics->frrxfcser =
 578                     in_be32(&p_rx_fw_statistics_pram->frrxfcser);
 579                 rx_firmware_statistics->fraligner =
 580                     in_be32(&p_rx_fw_statistics_pram->fraligner);
 581                 rx_firmware_statistics->inrangelenrxer =
 582                     in_be32(&p_rx_fw_statistics_pram->inrangelenrxer);
 583                 rx_firmware_statistics->outrangelenrxer =
 584                     in_be32(&p_rx_fw_statistics_pram->outrangelenrxer);
 585                 rx_firmware_statistics->frtoolong =
 586                     in_be32(&p_rx_fw_statistics_pram->frtoolong);
 587                 rx_firmware_statistics->runt =
 588                     in_be32(&p_rx_fw_statistics_pram->runt);
 589                 rx_firmware_statistics->verylongevent =
 590                     in_be32(&p_rx_fw_statistics_pram->verylongevent);
 591                 rx_firmware_statistics->symbolerror =
 592                     in_be32(&p_rx_fw_statistics_pram->symbolerror);
 593                 rx_firmware_statistics->dropbsy =
 594                     in_be32(&p_rx_fw_statistics_pram->dropbsy);
 595                 for (i = 0; i < 0x8; i++)
 596                         rx_firmware_statistics->res0[i] =
 597                             p_rx_fw_statistics_pram->res0[i];
 598                 rx_firmware_statistics->mismatchdrop =
 599                     in_be32(&p_rx_fw_statistics_pram->mismatchdrop);
 600                 rx_firmware_statistics->underpkts =
 601                     in_be32(&p_rx_fw_statistics_pram->underpkts);
 602                 rx_firmware_statistics->pkts256 =
 603                     in_be32(&p_rx_fw_statistics_pram->pkts256);
 604                 rx_firmware_statistics->pkts512 =
 605                     in_be32(&p_rx_fw_statistics_pram->pkts512);
 606                 rx_firmware_statistics->pkts1024 =
 607                     in_be32(&p_rx_fw_statistics_pram->pkts1024);
 608                 rx_firmware_statistics->pktsjumbo =
 609                     in_be32(&p_rx_fw_statistics_pram->pktsjumbo);
 610                 rx_firmware_statistics->frlossinmacer =
 611                     in_be32(&p_rx_fw_statistics_pram->frlossinmacer);
 612                 rx_firmware_statistics->pausefr =
 613                     in_be32(&p_rx_fw_statistics_pram->pausefr);
 614                 for (i = 0; i < 0x4; i++)
 615                         rx_firmware_statistics->res1[i] =
 616                             p_rx_fw_statistics_pram->res1[i];
 617                 rx_firmware_statistics->removevlan =
 618                     in_be32(&p_rx_fw_statistics_pram->removevlan);
 619                 rx_firmware_statistics->replacevlan =
 620                     in_be32(&p_rx_fw_statistics_pram->replacevlan);
 621                 rx_firmware_statistics->insertvlan =
 622                     in_be32(&p_rx_fw_statistics_pram->insertvlan);
 623         }
 624
 625         /* Hardware only if user handed pointer and driver actually
 626         gathers hardware statistics */
 627         if (hardware_statistics && (in_be32(&uf_regs->upsmr) & UPSMR_HSE)) {
 628                 hardware_statistics->tx64 = in_be32(&ug_regs->tx64);
 629                 hardware_statistics->tx127 = in_be32(&ug_regs->tx127);
 630                 hardware_statistics->tx255 = in_be32(&ug_regs->tx255);
 631                 hardware_statistics->rx64 = in_be32(&ug_regs->rx64);
 632                 hardware_statistics->rx127 = in_be32(&ug_regs->rx127);
 633                 hardware_statistics->rx255 = in_be32(&ug_regs->rx255);
 634                 hardware_statistics->txok = in_be32(&ug_regs->txok);
 635                 hardware_statistics->txcf = in_be16(&ug_regs->txcf);
 636                 hardware_statistics->tmca = in_be32(&ug_regs->tmca);
 637                 hardware_statistics->tbca = in_be32(&ug_regs->tbca);
 638                 hardware_statistics->rxfok = in_be32(&ug_regs->rxfok);
 639                 hardware_statistics->rxbok = in_be32(&ug_regs->rxbok);
 640                 hardware_statistics->rbyt = in_be32(&ug_regs->rbyt);
 641                 hardware_statistics->rmca = in_be32(&ug_regs->rmca);
 642                 hardware_statistics->rbca = in_be32(&ug_regs->rbca);
 643         }
 644 }
 645
 646 static void dump_bds(struct ucc_geth_private *ugeth)
 647 {
 648         int i;
 649         int length;
 650
 651         for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) {
 652                 if (ugeth->p_tx_bd_ring[i]) {
 653                         length =
 654                             (ugeth->ug_info->bdRingLenTx[i] *
 655                              sizeof(struct qe_bd));
 656                         ugeth_info("TX BDs[%d]", i);
 657                         mem_disp(ugeth->p_tx_bd_ring[i], length);
 658                 }
 659         }
 660         for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
 661                 if (ugeth->p_rx_bd_ring[i]) {
 662                         length =
 663                             (ugeth->ug_info->bdRingLenRx[i] *
 664                              sizeof(struct qe_bd));
 665                         ugeth_info("RX BDs[%d]", i);
 666                         mem_disp(ugeth->p_rx_bd_ring[i], length);
 667                 }
 668         }
 669 }
 670
 671 static void dump_regs(struct ucc_geth_private *ugeth)
 672 {
 673         int i;
 674
 675         ugeth_info("UCC%d Geth registers:", ugeth->ug_info->uf_info.ucc_num);
 676         ugeth_info("Base address: 0x%08x", (u32) ugeth->ug_regs);
 677
 678         ugeth_info("maccfg1    : addr - 0x%08x, val - 0x%08x",
 679                    (u32) & ugeth->ug_regs->maccfg1,
 680                    in_be32(&ugeth->ug_regs->maccfg1));
 681         ugeth_info("maccfg2    : addr - 0x%08x, val - 0x%08x",
 682                    (u32) & ugeth->ug_regs->maccfg2,
 683                    in_be32(&ugeth->ug_regs->maccfg2));
 684         ugeth_info("ipgifg     : addr - 0x%08x, val - 0x%08x",
 685                    (u32) & ugeth->ug_regs->ipgifg,
 686                    in_be32(&ugeth->ug_regs->ipgifg));
 687         ugeth_info("hafdup     : addr - 0x%08x, val - 0x%08x",
 688                    (u32) & ugeth->ug_regs->hafdup,
 689                    in_be32(&ugeth->ug_regs->hafdup));
 690         ugeth_info("ifctl      : addr - 0x%08x, val - 0x%08x",
 691                    (u32) & ugeth->ug_regs->ifctl,
 692                    in_be32(&ugeth->ug_regs->ifctl));
 693         ugeth_info("ifstat     : addr - 0x%08x, val - 0x%08x",
 694                    (u32) & ugeth->ug_regs->ifstat,
 695                    in_be32(&ugeth->ug_regs->ifstat));
 696         ugeth_info("macstnaddr1: addr - 0x%08x, val - 0x%08x",
 697                    (u32) & ugeth->ug_regs->macstnaddr1,
 698                    in_be32(&ugeth->ug_regs->macstnaddr1));
 699         ugeth_info("macstnaddr2: addr - 0x%08x, val - 0x%08x",
 700                    (u32) & ugeth->ug_regs->macstnaddr2,
 701                    in_be32(&ugeth->ug_regs->macstnaddr2));
 702         ugeth_info("uempr      : addr - 0x%08x, val - 0x%08x",
 703                    (u32) & ugeth->ug_regs->uempr,
 704                    in_be32(&ugeth->ug_regs->uempr));
 705         ugeth_info("utbipar    : addr - 0x%08x, val - 0x%08x",
 706                    (u32) & ugeth->ug_regs->utbipar,
 707                    in_be32(&ugeth->ug_regs->utbipar));
 708         ugeth_info("uescr      : addr - 0x%08x, val - 0x%04x",
 709                    (u32) & ugeth->ug_regs->uescr,
 710                    in_be16(&ugeth->ug_regs->uescr));
 711         ugeth_info("tx64       : addr - 0x%08x, val - 0x%08x",
 712                    (u32) & ugeth->ug_regs->tx64,
 713                    in_be32(&ugeth->ug_regs->tx64));
 714         ugeth_info("tx127      : addr - 0x%08x, val - 0x%08x",
 715                    (u32) & ugeth->ug_regs->tx127,
 716                    in_be32(&ugeth->ug_regs->tx127));
 717         ugeth_info("tx255      : addr - 0x%08x, val - 0x%08x",
 718                    (u32) & ugeth->ug_regs->tx255,
 719                    in_be32(&ugeth->ug_regs->tx255));
 720         ugeth_info("rx64       : addr - 0x%08x, val - 0x%08x",
 721                    (u32) & ugeth->ug_regs->rx64,
 722                    in_be32(&ugeth->ug_regs->rx64));
 723         ugeth_info("rx127      : addr - 0x%08x, val - 0x%08x",
 724                    (u32) & ugeth->ug_regs->rx127,
 725                    in_be32(&ugeth->ug_regs->rx127));
 726         ugeth_info("rx255      : addr - 0x%08x, val - 0x%08x",
 727                    (u32) & ugeth->ug_regs->rx255,
 728                    in_be32(&ugeth->ug_regs->rx255));
 729         ugeth_info("txok       : addr - 0x%08x, val - 0x%08x",
 730                    (u32) & ugeth->ug_regs->txok,
 731                    in_be32(&ugeth->ug_regs->txok));
 732         ugeth_info("txcf       : addr - 0x%08x, val - 0x%04x",
 733                    (u32) & ugeth->ug_regs->txcf,
 734                    in_be16(&ugeth->ug_regs->txcf));
 735         ugeth_info("tmca       : addr - 0x%08x, val - 0x%08x",
 736                    (u32) & ugeth->ug_regs->tmca,
 737                    in_be32(&ugeth->ug_regs->tmca));
 738         ugeth_info("tbca       : addr - 0x%08x, val - 0x%08x",
 739                    (u32) & ugeth->ug_regs->tbca,
 740                    in_be32(&ugeth->ug_regs->tbca));
 741         ugeth_info("rxfok      : addr - 0x%08x, val - 0x%08x",
 742                    (u32) & ugeth->ug_regs->rxfok,
 743                    in_be32(&ugeth->ug_regs->rxfok));
 744         ugeth_info("rxbok      : addr - 0x%08x, val - 0x%08x",
 745                    (u32) & ugeth->ug_regs->rxbok,
 746                    in_be32(&ugeth->ug_regs->rxbok));
 747         ugeth_info("rbyt       : addr - 0x%08x, val - 0x%08x",
 748                    (u32) & ugeth->ug_regs->rbyt,
 749                    in_be32(&ugeth->ug_regs->rbyt));
 750         ugeth_info("rmca       : addr - 0x%08x, val - 0x%08x",
 751                    (u32) & ugeth->ug_regs->rmca,
 752                    in_be32(&ugeth->ug_regs->rmca));
 753         ugeth_info("rbca       : addr - 0x%08x, val - 0x%08x",
 754                    (u32) & ugeth->ug_regs->rbca,
 755                    in_be32(&ugeth->ug_regs->rbca));
 756         ugeth_info("scar       : addr - 0x%08x, val - 0x%08x",
 757                    (u32) & ugeth->ug_regs->scar,
 758                    in_be32(&ugeth->ug_regs->scar));
 759         ugeth_info("scam       : addr - 0x%08x, val - 0x%08x",
 760                    (u32) & ugeth->ug_regs->scam,
 761                    in_be32(&ugeth->ug_regs->scam));
 762
 763         if (ugeth->p_thread_data_tx) {
 764                 int numThreadsTxNumerical;
 765                 switch (ugeth->ug_info->numThreadsTx) {
 766                 case UCC_GETH_NUM_OF_THREADS_1:
 767                         numThreadsTxNumerical = 1;
 768                         break;
 769                 case UCC_GETH_NUM_OF_THREADS_2:
 770                         numThreadsTxNumerical = 2;
 771                         break;
 772                 case UCC_GETH_NUM_OF_THREADS_4:
 773                         numThreadsTxNumerical = 4;
 774                         break;
 775                 case UCC_GETH_NUM_OF_THREADS_6:
 776                         numThreadsTxNumerical = 6;
 777                         break;
 778                 case UCC_GETH_NUM_OF_THREADS_8:
 779                         numThreadsTxNumerical = 8;
 780                         break;
 781                 default:
 782                         numThreadsTxNumerical = 0;
 783                         break;
 784                 }
 785
 786                 ugeth_info("Thread data TXs:");
 787                 ugeth_info("Base address: 0x%08x",
 788                            (u32) ugeth->p_thread_data_tx);
 789                 for (i = 0; i < numThreadsTxNumerical; i++) {
 790                         ugeth_info("Thread data TX[%d]:", i);
 791                         ugeth_info("Base address: 0x%08x",
 792                                    (u32) & ugeth->p_thread_data_tx[i]);
 793                         mem_disp((u8 *) & ugeth->p_thread_data_tx[i],
 794                                  sizeof(struct ucc_geth_thread_data_tx));
 795                 }
 796         }
 797         if (ugeth->p_thread_data_rx) {
 798                 int numThreadsRxNumerical;
 799                 switch (ugeth->ug_info->numThreadsRx) {
 800                 case UCC_GETH_NUM_OF_THREADS_1:
 801                         numThreadsRxNumerical = 1;
 802                         break;
 803                 case UCC_GETH_NUM_OF_THREADS_2:
 804                         numThreadsRxNumerical = 2;
 805                         break;
 806                 case UCC_GETH_NUM_OF_THREADS_4:
 807                         numThreadsRxNumerical = 4;
 808                         break;
 809                 case UCC_GETH_NUM_OF_THREADS_6:
 810                         numThreadsRxNumerical = 6;
 811                         break;
 812                 case UCC_GETH_NUM_OF_THREADS_8:
 813                         numThreadsRxNumerical = 8;
 814                         break;
 815                 default:
 816                         numThreadsRxNumerical = 0;
 817                         break;
 818                 }
 819
 820                 ugeth_info("Thread data RX:");
 821                 ugeth_info("Base address: 0x%08x",
 822                            (u32) ugeth->p_thread_data_rx);
 823                 for (i = 0; i < numThreadsRxNumerical; i++) {
 824                         ugeth_info("Thread data RX[%d]:", i);
 825                         ugeth_info("Base address: 0x%08x",
 826                                    (u32) & ugeth->p_thread_data_rx[i]);
 827                         mem_disp((u8 *) & ugeth->p_thread_data_rx[i],
 828                                  sizeof(struct ucc_geth_thread_data_rx));
 829                 }
 830         }
 831         if (ugeth->p_exf_glbl_param) {
 832                 ugeth_info("EXF global param:");
 833                 ugeth_info("Base address: 0x%08x",
 834                            (u32) ugeth->p_exf_glbl_param);
 835                 mem_disp((u8 *) ugeth->p_exf_glbl_param,
 836                          sizeof(*ugeth->p_exf_glbl_param));
 837         }
 838         if (ugeth->p_tx_glbl_pram) {
 839                 ugeth_info("TX global param:");
 840                 ugeth_info("Base address: 0x%08x", (u32) ugeth->p_tx_glbl_pram);
 841                 ugeth_info("temoder      : addr - 0x%08x, val - 0x%04x",
 842                            (u32) & ugeth->p_tx_glbl_pram->temoder,
 843                            in_be16(&ugeth->p_tx_glbl_pram->temoder));
 844                 ugeth_info("sqptr        : addr - 0x%08x, val - 0x%08x",
 845                            (u32) & ugeth->p_tx_glbl_pram->sqptr,
 846                            in_be32(&ugeth->p_tx_glbl_pram->sqptr));
 847                 ugeth_info("schedulerbasepointer: addr - 0x%08x, val - 0x%08x",
 848                            (u32) & ugeth->p_tx_glbl_pram->schedulerbasepointer,
 849                            in_be32(&ugeth->p_tx_glbl_pram->
 850                                    schedulerbasepointer));
 851                 ugeth_info("txrmonbaseptr: addr - 0x%08x, val - 0x%08x",
 852                            (u32) & ugeth->p_tx_glbl_pram->txrmonbaseptr,
 853                            in_be32(&ugeth->p_tx_glbl_pram->txrmonbaseptr));
 854                 ugeth_info("tstate       : addr - 0x%08x, val - 0x%08x",
 855                            (u32) & ugeth->p_tx_glbl_pram->tstate,
 856                            in_be32(&ugeth->p_tx_glbl_pram->tstate));
 857                 ugeth_info("iphoffset[0] : addr - 0x%08x, val - 0x%02x",
 858                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[0],
 859                            ugeth->p_tx_glbl_pram->iphoffset[0]);
 860                 ugeth_info("iphoffset[1] : addr - 0x%08x, val - 0x%02x",
 861                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[1],
 862                            ugeth->p_tx_glbl_pram->iphoffset[1]);
 863                 ugeth_info("iphoffset[2] : addr - 0x%08x, val - 0x%02x",
 864                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[2],
 865                            ugeth->p_tx_glbl_pram->iphoffset[2]);
 866                 ugeth_info("iphoffset[3] : addr - 0x%08x, val - 0x%02x",
 867                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[3],
 868                            ugeth->p_tx_glbl_pram->iphoffset[3]);
 869                 ugeth_info("iphoffset[4] : addr - 0x%08x, val - 0x%02x",
 870                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[4],
 871                            ugeth->p_tx_glbl_pram->iphoffset[4]);
 872                 ugeth_info("iphoffset[5] : addr - 0x%08x, val - 0x%02x",
 873                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[5],
 874                            ugeth->p_tx_glbl_pram->iphoffset[5]);
 875                 ugeth_info("iphoffset[6] : addr - 0x%08x, val - 0x%02x",
 876                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[6],
 877                            ugeth->p_tx_glbl_pram->iphoffset[6]);
 878                 ugeth_info("iphoffset[7] : addr - 0x%08x, val - 0x%02x",
 879                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[7],
 880                            ugeth->p_tx_glbl_pram->iphoffset[7]);
 881                 ugeth_info("vtagtable[0] : addr - 0x%08x, val - 0x%08x",
 882                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[0],
 883                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[0]));
 884                 ugeth_info("vtagtable[1] : addr - 0x%08x, val - 0x%08x",
 885                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[1],
 886                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[1]));
 887                 ugeth_info("vtagtable[2] : addr - 0x%08x, val - 0x%08x",
 888                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[2],
 889                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[2]));
 890                 ugeth_info("vtagtable[3] : addr - 0x%08x, val - 0x%08x",
 891                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[3],
 892                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[3]));
 893                 ugeth_info("vtagtable[4] : addr - 0x%08x, val - 0x%08x",
 894                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[4],
 895                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[4]));
 896                 ugeth_info("vtagtable[5] : addr - 0x%08x, val - 0x%08x",
 897                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[5],
 898                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[5]));
 899                 ugeth_info("vtagtable[6] : addr - 0x%08x, val - 0x%08x",
 900                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[6],
 901                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[6]));
 902                 ugeth_info("vtagtable[7] : addr - 0x%08x, val - 0x%08x",
 903                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[7],
 904                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[7]));
 905                 ugeth_info("tqptr        : addr - 0x%08x, val - 0x%08x",
 906                            (u32) & ugeth->p_tx_glbl_pram->tqptr,
 907                            in_be32(&ugeth->p_tx_glbl_pram->tqptr));
 908         }
 909         if (ugeth->p_rx_glbl_pram) {
 910                 ugeth_info("RX global param:");
 911                 ugeth_info("Base address: 0x%08x", (u32) ugeth->p_rx_glbl_pram);
 912                 ugeth_info("remoder         : addr - 0x%08x, val - 0x%08x",
 913                            (u32) & ugeth->p_rx_glbl_pram->remoder,
 914                            in_be32(&ugeth->p_rx_glbl_pram->remoder));
 915                 ugeth_info("rqptr           : addr - 0x%08x, val - 0x%08x",
 916                            (u32) & ugeth->p_rx_glbl_pram->rqptr,
 917                            in_be32(&ugeth->p_rx_glbl_pram->rqptr));
 918                 ugeth_info("typeorlen       : addr - 0x%08x, val - 0x%04x",
 919                            (u32) & ugeth->p_rx_glbl_pram->typeorlen,
 920                            in_be16(&ugeth->p_rx_glbl_pram->typeorlen));
 921                 ugeth_info("rxgstpack       : addr - 0x%08x, val - 0x%02x",
 922                            (u32) & ugeth->p_rx_glbl_pram->rxgstpack,
 923                            ugeth->p_rx_glbl_pram->rxgstpack);
 924                 ugeth_info("rxrmonbaseptr   : addr - 0x%08x, val - 0x%08x",
 925                            (u32) & ugeth->p_rx_glbl_pram->rxrmonbaseptr,
 926                            in_be32(&ugeth->p_rx_glbl_pram->rxrmonbaseptr));
 927                 ugeth_info("intcoalescingptr: addr - 0x%08x, val - 0x%08x",
 928                            (u32) & ugeth->p_rx_glbl_pram->intcoalescingptr,
 929                            in_be32(&ugeth->p_rx_glbl_pram->intcoalescingptr));
 930                 ugeth_info("rstate          : addr - 0x%08x, val - 0x%02x",
 931                            (u32) & ugeth->p_rx_glbl_pram->rstate,
 932                            ugeth->p_rx_glbl_pram->rstate);
 933                 ugeth_info("mrblr           : addr - 0x%08x, val - 0x%04x",
 934                            (u32) & ugeth->p_rx_glbl_pram->mrblr,
 935                            in_be16(&ugeth->p_rx_glbl_pram->mrblr));
 936                 ugeth_info("rbdqptr         : addr - 0x%08x, val - 0x%08x",
 937                            (u32) & ugeth->p_rx_glbl_pram->rbdqptr,
 938                            in_be32(&ugeth->p_rx_glbl_pram->rbdqptr));
 939                 ugeth_info("mflr            : addr - 0x%08x, val - 0x%04x",
 940                            (u32) & ugeth->p_rx_glbl_pram->mflr,
 941                            in_be16(&ugeth->p_rx_glbl_pram->mflr));
 942                 ugeth_info("minflr          : addr - 0x%08x, val - 0x%04x",
 943                            (u32) & ugeth->p_rx_glbl_pram->minflr,
 944                            in_be16(&ugeth->p_rx_glbl_pram->minflr));
 945                 ugeth_info("maxd1           : addr - 0x%08x, val - 0x%04x",
 946                            (u32) & ugeth->p_rx_glbl_pram->maxd1,
 947                            in_be16(&ugeth->p_rx_glbl_pram->maxd1));
 948                 ugeth_info("maxd2           : addr - 0x%08x, val - 0x%04x",
 949                            (u32) & ugeth->p_rx_glbl_pram->maxd2,
 950                            in_be16(&ugeth->p_rx_glbl_pram->maxd2));
 951                 ugeth_info("ecamptr         : addr - 0x%08x, val - 0x%08x",
 952                            (u32) & ugeth->p_rx_glbl_pram->ecamptr,
 953                            in_be32(&ugeth->p_rx_glbl_pram->ecamptr));
 954                 ugeth_info("l2qt            : addr - 0x%08x, val - 0x%08x",
 955                            (u32) & ugeth->p_rx_glbl_pram->l2qt,
 956                            in_be32(&ugeth->p_rx_glbl_pram->l2qt));
 957                 ugeth_info("l3qt[0]         : addr - 0x%08x, val - 0x%08x",
 958                            (u32) & ugeth->p_rx_glbl_pram->l3qt[0],
 959                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[0]));
 960                 ugeth_info("l3qt[1]         : addr - 0x%08x, val - 0x%08x",
 961                            (u32) & ugeth->p_rx_glbl_pram->l3qt[1],
 962                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[1]));
 963                 ugeth_info("l3qt[2]         : addr - 0x%08x, val - 0x%08x",
 964                            (u32) & ugeth->p_rx_glbl_pram->l3qt[2],
 965                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[2]));
 966                 ugeth_info("l3qt[3]         : addr - 0x%08x, val - 0x%08x",
 967                            (u32) & ugeth->p_rx_glbl_pram->l3qt[3],
 968                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[3]));
 969                 ugeth_info("l3qt[4]         : addr - 0x%08x, val - 0x%08x",
 970                            (u32) & ugeth->p_rx_glbl_pram->l3qt[4],
 971                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[4]));
 972                 ugeth_info("l3qt[5]         : addr - 0x%08x, val - 0x%08x",
 973                            (u32) & ugeth->p_rx_glbl_pram->l3qt[5],
 974                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[5]));
 975                 ugeth_info("l3qt[6]         : addr - 0x%08x, val - 0x%08x",
 976                            (u32) & ugeth->p_rx_glbl_pram->l3qt[6],
 977                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[6]));
 978                 ugeth_info("l3qt[7]         : addr - 0x%08x, val - 0x%08x",
 979                            (u32) & ugeth->p_rx_glbl_pram->l3qt[7],
 980                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[7]));
 981                 ugeth_info("vlantype        : addr - 0x%08x, val - 0x%04x",
 982                            (u32) & ugeth->p_rx_glbl_pram->vlantype,
 983                            in_be16(&ugeth->p_rx_glbl_pram->vlantype));
 984                 ugeth_info("vlantci         : addr - 0x%08x, val - 0x%04x",
 985                            (u32) & ugeth->p_rx_glbl_pram->vlantci,
 986                            in_be16(&ugeth->p_rx_glbl_pram->vlantci));
 987                 for (i = 0; i < 64; i++)
 988                         ugeth_info
 989                     ("addressfiltering[%d]: addr - 0x%08x, val - 0x%02x",
 990                              i,
 991                              (u32) & ugeth->p_rx_glbl_pram->addressfiltering[i],
 992                              ugeth->p_rx_glbl_pram->addressfiltering[i]);
 993                 ugeth_info("exfGlobalParam  : addr - 0x%08x, val - 0x%08x",
 994                            (u32) & ugeth->p_rx_glbl_pram->exfGlobalParam,
 995                            in_be32(&ugeth->p_rx_glbl_pram->exfGlobalParam));
 996         }
 997         if (ugeth->p_send_q_mem_reg) {
 998                 ugeth_info("Send Q memory registers:");
 999                 ugeth_info("Base address: 0x%08x",
1000                            (u32) ugeth->p_send_q_mem_reg);
1001                 for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) {
1002                         ugeth_info("SQQD[%d]:", i);
1003                         ugeth_info("Base address: 0x%08x",
1004                                    (u32) & ugeth->p_send_q_mem_reg->sqqd[i]);
1005                         mem_disp((u8 *) & ugeth->p_send_q_mem_reg->sqqd[i],
1006                                  sizeof(struct ucc_geth_send_queue_qd));
1007                 }
1008         }
1009         if (ugeth->p_scheduler) {
1010                 ugeth_info("Scheduler:");
1011                 ugeth_info("Base address: 0x%08x", (u32) ugeth->p_scheduler);
1012                 mem_disp((u8 *) ugeth->p_scheduler,
1013                          sizeof(*ugeth->p_scheduler));
1014         }
1015         if (ugeth->p_tx_fw_statistics_pram) {
1016                 ugeth_info("TX FW statistics pram:");
1017                 ugeth_info("Base address: 0x%08x",
1018                            (u32) ugeth->p_tx_fw_statistics_pram);
1019                 mem_disp((u8 *) ugeth->p_tx_fw_statistics_pram,
1020                          sizeof(*ugeth->p_tx_fw_statistics_pram));
1021         }
1022         if (ugeth->p_rx_fw_statistics_pram) {
1023                 ugeth_info("RX FW statistics pram:");
1024                 ugeth_info("Base address: 0x%08x",
1025                            (u32) ugeth->p_rx_fw_statistics_pram);
1026                 mem_disp((u8 *) ugeth->p_rx_fw_statistics_pram,
1027                          sizeof(*ugeth->p_rx_fw_statistics_pram));
1028         }
1029         if (ugeth->p_rx_irq_coalescing_tbl) {
1030                 ugeth_info("RX IRQ coalescing tables:");
1031                 ugeth_info("Base address: 0x%08x",
1032                            (u32) ugeth->p_rx_irq_coalescing_tbl);
1033                 for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
1034                         ugeth_info("RX IRQ coalescing table entry[%d]:", i);
1035                         ugeth_info("Base address: 0x%08x",
1036                                    (u32) & ugeth->p_rx_irq_coalescing_tbl->
1037                                    coalescingentry[i]);
1038                         ugeth_info
1039                 ("interruptcoalescingmaxvalue: addr - 0x%08x, val - 0x%08x",
1040                              (u32) & ugeth->p_rx_irq_coalescing_tbl->
1041                              coalescingentry[i].interruptcoalescingmaxvalue,
1042                              in_be32(&ugeth->p_rx_irq_coalescing_tbl->
1043                                      coalescingentry[i].
1044                                      interruptcoalescingmaxvalue));
1045                         ugeth_info
1046                 ("interruptcoalescingcounter : addr - 0x%08x, val - 0x%08x",
1047                              (u32) & ugeth->p_rx_irq_coalescing_tbl->
1048                              coalescingentry[i].interruptcoalescingcounter,
1049                              in_be32(&ugeth->p_rx_irq_coalescing_tbl->
1050                                      coalescingentry[i].
1051                                      interruptcoalescingcounter));
1052                 }
1053         }
1054         if (ugeth->p_rx_bd_qs_tbl) {
1055                 ugeth_info("RX BD QS tables:");
1056                 ugeth_info("Base address: 0x%08x", (u32) ugeth->p_rx_bd_qs_tbl);
1057                 for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
1058                         ugeth_info("RX BD QS table[%d]:", i);
1059                         ugeth_info("Base address: 0x%08x",
1060                                    (u32) & ugeth->p_rx_bd_qs_tbl[i]);
1061                         ugeth_info
1062                             ("bdbaseptr        : addr - 0x%08x, val - 0x%08x",
1063                              (u32) & ugeth->p_rx_bd_qs_tbl[i].bdbaseptr,
1064                              in_be32(&ugeth->p_rx_bd_qs_tbl[i].bdbaseptr));
1065                         ugeth_info
1066                             ("bdptr            : addr - 0x%08x, val - 0x%08x",
1067                              (u32) & ugeth->p_rx_bd_qs_tbl[i].bdptr,
1068                              in_be32(&ugeth->p_rx_bd_qs_tbl[i].bdptr));
1069                         ugeth_info
1070                             ("externalbdbaseptr: addr - 0x%08x, val - 0x%08x",
1071                              (u32) & ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
1072                              in_be32(&ugeth->p_rx_bd_qs_tbl[i].
1073                                      externalbdbaseptr));
1074                         ugeth_info
1075                             ("externalbdptr    : addr - 0x%08x, val - 0x%08x",
1076                              (u32) & ugeth->p_rx_bd_qs_tbl[i].externalbdptr,
1077                              in_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdptr));
1078                         ugeth_info("ucode RX Prefetched BDs:");
1079                         ugeth_info("Base address: 0x%08x",
1080                                    (u32)
1081                                    qe_muram_addr(in_be32
1082                                                  (&ugeth->p_rx_bd_qs_tbl[i].
1083                                                   bdbaseptr)));
1084                         mem_disp((u8 *)
1085                                  qe_muram_addr(in_be32
1086                                                (&ugeth->p_rx_bd_qs_tbl[i].
1087                                                 bdbaseptr)),
1088                                  sizeof(struct ucc_geth_rx_prefetched_bds));
1089                 }
1090         }
1091         if (ugeth->p_init_enet_param_shadow) {
1092                 int size;
1093                 ugeth_info("Init enet param shadow:");
1094                 ugeth_info("Base address: 0x%08x",
1095                            (u32) ugeth->p_init_enet_param_shadow);
1096                 mem_disp((u8 *) ugeth->p_init_enet_param_shadow,
1097                          sizeof(*ugeth->p_init_enet_param_shadow));
1098
1099                 size = sizeof(struct ucc_geth_thread_rx_pram);
1100                 if (ugeth->ug_info->rxExtendedFiltering) {
1101                         size +=
1102                             THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING;
1103                         if (ugeth->ug_info->largestexternallookupkeysize ==
1104                             QE_FLTR_TABLE_LOOKUP_KEY_SIZE_8_BYTES)
1105                                 size +=
1106                         THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_8;
1107                         if (ugeth->ug_info->largestexternallookupkeysize ==
1108                             QE_FLTR_TABLE_LOOKUP_KEY_SIZE_16_BYTES)
1109                                 size +=
1110                         THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_16;
1111                 }
1112
1113                 dump_init_enet_entries(ugeth,
1114                                        &(ugeth->p_init_enet_param_shadow->
1115                                          txthread[0]),
1116                                        ENET_INIT_PARAM_MAX_ENTRIES_TX,
1117                                        sizeof(struct ucc_geth_thread_tx_pram),
1118                                        ugeth->ug_info->riscTx, 0);
1119                 dump_init_enet_entries(ugeth,
1120                                        &(ugeth->p_init_enet_param_shadow->
1121                                          rxthread[0]),
1122                                        ENET_INIT_PARAM_MAX_ENTRIES_RX, size,
1123                                        ugeth->ug_info->riscRx, 1);
1124         }
1125 }
1126 #endif /* DEBUG */
1127
1128 static void init_default_reg_vals(volatile u32 *upsmr_register,
1129                                   volatile u32 *maccfg1_register,
1130                                   volatile u32 *maccfg2_register)
1131 {
1132         out_be32(upsmr_register, UCC_GETH_UPSMR_INIT);
1133         out_be32(maccfg1_register, UCC_GETH_MACCFG1_INIT);
1134         out_be32(maccfg2_register, UCC_GETH_MACCFG2_INIT);
1135 }
1136
1137 static int init_half_duplex_params(int alt_beb,
1138                                    int back_pressure_no_backoff,
1139                                    int no_backoff,
1140                                    int excess_defer,
1141                                    u8 alt_beb_truncation,
1142                                    u8 max_retransmissions,
1143                                    u8 collision_window,
1144                                    volatile u32 *hafdup_register)
1145 {
1146         u32 value = 0;
1147
1148         if ((alt_beb_truncation > HALFDUP_ALT_BEB_TRUNCATION_MAX) ||
1149             (max_retransmissions > HALFDUP_MAX_RETRANSMISSION_MAX) ||
1150             (collision_window > HALFDUP_COLLISION_WINDOW_MAX))
1151                 return -EINVAL;
1152
1153         value = (u32) (alt_beb_truncation << HALFDUP_ALT_BEB_TRUNCATION_SHIFT);
1154
1155         if (alt_beb)
1156                 value |= HALFDUP_ALT_BEB;
1157         if (back_pressure_no_backoff)
1158                 value |= HALFDUP_BACK_PRESSURE_NO_BACKOFF;
1159         if (no_backoff)
1160                 value |= HALFDUP_NO_BACKOFF;
1161         if (excess_defer)
1162                 value |= HALFDUP_EXCESSIVE_DEFER;
1163
1164         value |= (max_retransmissions << HALFDUP_MAX_RETRANSMISSION_SHIFT);
1165
1166         value |= collision_window;
1167
1168         out_be32(hafdup_register, value);
1169         return 0;
1170 }
1171
1172 static int init_inter_frame_gap_params(u8 non_btb_cs_ipg,
1173                                        u8 non_btb_ipg,
1174                                        u8 min_ifg,
1175                                        u8 btb_ipg,
1176                                        volatile u32 *ipgifg_register)
1177 {
1178         u32 value = 0;
1179
1180         /* Non-Back-to-back IPG part 1 should be <= Non-Back-to-back
1181         IPG part 2 */
1182         if (non_btb_cs_ipg > non_btb_ipg)
1183                 return -EINVAL;
1184
1185         if ((non_btb_cs_ipg > IPGIFG_NON_BACK_TO_BACK_IFG_PART1_MAX) ||
1186             (non_btb_ipg > IPGIFG_NON_BACK_TO_BACK_IFG_PART2_MAX) ||
1187             /*(min_ifg        > IPGIFG_MINIMUM_IFG_ENFORCEMENT_MAX) || */
1188             (btb_ipg > IPGIFG_BACK_TO_BACK_IFG_MAX))
1189                 return -EINVAL;
1190
1191         value |=
1192             ((non_btb_cs_ipg << IPGIFG_NON_BACK_TO_BACK_IFG_PART1_SHIFT) &
1193              IPGIFG_NBTB_CS_IPG_MASK);
1194         value |=
1195             ((non_btb_ipg << IPGIFG_NON_BACK_TO_BACK_IFG_PART2_SHIFT) &
1196              IPGIFG_NBTB_IPG_MASK);
1197         value |=
1198             ((min_ifg << IPGIFG_MINIMUM_IFG_ENFORCEMENT_SHIFT) &
1199              IPGIFG_MIN_IFG_MASK);
1200         value |= (btb_ipg & IPGIFG_BTB_IPG_MASK);
1201
1202         out_be32(ipgifg_register, value);
1203         return 0;
1204 }
1205
1206 static int init_flow_control_params(u32 automatic_flow_control_mode,
1207                                     int rx_flow_control_enable,
1208                                     int tx_flow_control_enable,
1209                                     u16 pause_period,
1210                                     u16 extension_field,
1211                                     volatile u32 *upsmr_register,
1212                                     volatile u32 *uempr_register,
1213                                     volatile u32 *maccfg1_register)
1214 {
1215         u32 value = 0;
1216
1217         /* Set UEMPR register */
1218         value = (u32) pause_period << UEMPR_PAUSE_TIME_VALUE_SHIFT;
1219         value |= (u32) extension_field << UEMPR_EXTENDED_PAUSE_TIME_VALUE_SHIFT;
1220         out_be32(uempr_register, value);
1221
1222         /* Set UPSMR register */
1223         value = in_be32(upsmr_register);
1224         value |= automatic_flow_control_mode;
1225         out_be32(upsmr_register, value);
1226
1227         value = in_be32(maccfg1_register);
1228         if (rx_flow_control_enable)
1229                 value |= MACCFG1_FLOW_RX;
1230         if (tx_flow_control_enable)
1231                 value |= MACCFG1_FLOW_TX;
1232         out_be32(maccfg1_register, value);
1233
1234         return 0;
1235 }
1236
1237 static int init_hw_statistics_gathering_mode(int enable_hardware_statistics,
1238                                              int auto_zero_hardware_statistics,
1239                                              volatile u32 *upsmr_register,
1240                                              volatile u16 *uescr_register)
1241 {
1242         u32 upsmr_value = 0;
1243         u16 uescr_value = 0;
1244         /* Enable hardware statistics gathering if requested */
1245         if (enable_hardware_statistics) {
1246                 upsmr_value = in_be32(upsmr_register);
1247                 upsmr_value |= UPSMR_HSE;
1248                 out_be32(upsmr_register, upsmr_value);
1249         }
1250
1251         /* Clear hardware statistics counters */
1252         uescr_value = in_be16(uescr_register);
1253         uescr_value |= UESCR_CLRCNT;
1254         /* Automatically zero hardware statistics counters on read,
1255         if requested */
1256         if (auto_zero_hardware_statistics)
1257                 uescr_value |= UESCR_AUTOZ;
1258         out_be16(uescr_register, uescr_value);
1259
1260         return 0;
1261 }
1262
1263 static int init_firmware_statistics_gathering_mode(int
1264                 enable_tx_firmware_statistics,
1265                 int enable_rx_firmware_statistics,
1266                 volatile u32 *tx_rmon_base_ptr,
1267                 u32 tx_firmware_statistics_structure_address,
1268                 volatile u32 *rx_rmon_base_ptr,
1269                 u32 rx_firmware_statistics_structure_address,
1270                 volatile u16 *temoder_register,
1271                 volatile u32 *remoder_register)
1272 {
1273         /* Note: this function does not check if */
1274         /* the parameters it receives are NULL   */
1275         u16 temoder_value;
1276         u32 remoder_value;
1277
1278         if (enable_tx_firmware_statistics) {
1279                 out_be32(tx_rmon_base_ptr,
1280                          tx_firmware_statistics_structure_address);
1281                 temoder_value = in_be16(temoder_register);
1282                 temoder_value |= TEMODER_TX_RMON_STATISTICS_ENABLE;
1283                 out_be16(temoder_register, temoder_value);
1284         }
1285
1286         if (enable_rx_firmware_statistics) {
1287                 out_be32(rx_rmon_base_ptr,
1288                          rx_firmware_statistics_structure_address);
1289                 remoder_value = in_be32(remoder_register);
1290                 remoder_value |= REMODER_RX_RMON_STATISTICS_ENABLE;
1291                 out_be32(remoder_register, remoder_value);
1292         }
1293
1294         return 0;
1295 }
1296
1297 static int init_mac_station_addr_regs(u8 address_byte_0,
1298                                       u8 address_byte_1,
1299                                       u8 address_byte_2,
1300                                       u8 address_byte_3,
1301                                       u8 address_byte_4,
1302                                       u8 address_byte_5,
1303                                       volatile u32 *macstnaddr1_register,
1304                                       volatile u32 *macstnaddr2_register)
1305 {
1306         u32 value = 0;
1307
1308         /* Example: for a station address of 0x12345678ABCD, */
1309         /* 0x12 is byte 0, 0x34 is byte 1 and so on and 0xCD is byte 5 */
1310
1311         /* MACSTNADDR1 Register: */
1312
1313         /* 0                      7   8                      15  */
1314         /* station address byte 5     station address byte 4     */
1315         /* 16                     23  24                     31  */
1316         /* station address byte 3     station address byte 2     */
1317         value |= (u32) ((address_byte_2 << 0) & 0x000000FF);
1318         value |= (u32) ((address_byte_3 << 8) & 0x0000FF00);
1319         value |= (u32) ((address_byte_4 << 16) & 0x00FF0000);
1320         value |= (u32) ((address_byte_5 << 24) & 0xFF000000);
1321
1322         out_be32(macstnaddr1_register, value);
1323
1324         /* MACSTNADDR2 Register: */
1325
1326         /* 0                      7   8                      15  */
1327         /* station address byte 1     station address byte 0     */
1328         /* 16                     23  24                     31  */
1329         /*         reserved                   reserved           */
1330         value = 0;
1331         value |= (u32) ((address_byte_0 << 16) & 0x00FF0000);
1332         value |= (u32) ((address_byte_1 << 24) & 0xFF000000);
1333
1334         out_be32(macstnaddr2_register, value);
1335
1336         return 0;
1337 }
1338
1339 static int init_check_frame_length_mode(int length_check,
1340                                         volatile u32 *maccfg2_register)
1341 {
1342         u32 value = 0;
1343
1344         value = in_be32(maccfg2_register);
1345
1346         if (length_check)
1347                 value |= MACCFG2_LC;
1348         else
1349                 value &= ~MACCFG2_LC;
1350
1351         out_be32(maccfg2_register, value);
1352         return 0;
1353 }
1354
1355 static int init_preamble_length(u8 preamble_length,
1356                                 volatile u32 *maccfg2_register)
1357 {
1358         u32 value = 0;
1359
1360         if ((preamble_length < 3) || (preamble_length > 7))
1361                 return -EINVAL;
1362
1363         value = in_be32(maccfg2_register);
1364         value &= ~MACCFG2_PREL_MASK;
1365         value |= (preamble_length << MACCFG2_PREL_SHIFT);
1366         out_be32(maccfg2_register, value);
1367         return 0;
1368 }
1369
1370 static int init_rx_parameters(int reject_broadcast,
1371                               int receive_short_frames,
1372                               int promiscuous, volatile u32 *upsmr_register)
1373 {
1374         u32 value = 0;
1375
1376         value = in_be32(upsmr_register);
1377
1378         if (reject_broadcast)
1379                 value |= UPSMR_BRO;
1380         else
1381                 value &= ~UPSMR_BRO;
1382
1383         if (receive_short_frames)
1384                 value |= UPSMR_RSH;
1385         else
1386                 value &= ~UPSMR_RSH;
1387
1388         if (promiscuous)
1389                 value |= UPSMR_PRO;
1390         else
1391                 value &= ~UPSMR_PRO;
1392
1393         out_be32(upsmr_register, value);
1394
1395         return 0;
1396 }
1397
1398 static int init_max_rx_buff_len(u16 max_rx_buf_len,
1399                                 volatile u16 *mrblr_register)
1400 {
1401         /* max_rx_buf_len value must be a multiple of 128 */
1402         if ((max_rx_buf_len == 0)
1403             || (max_rx_buf_len % UCC_GETH_MRBLR_ALIGNMENT))
1404                 return -EINVAL;
1405
1406         out_be16(mrblr_register, max_rx_buf_len);
1407         return 0;
1408 }
1409
1410 static int init_min_frame_len(u16 min_frame_length,
1411                               volatile u16 *minflr_register,
1412                               volatile u16 *mrblr_register)
1413 {
1414         u16 mrblr_value = 0;
1415
1416         mrblr_value = in_be16(mrblr_register);
1417         if (min_frame_length >= (mrblr_value - 4))
1418                 return -EINVAL;
1419
1420         out_be16(minflr_register, min_frame_length);
1421         return 0;
1422 }
1423
1424 static int adjust_enet_interface(struct ucc_geth_private *ugeth)
1425 {
1426         struct ucc_geth_info *ug_info;
1427         struct ucc_geth *ug_regs;
1428         struct ucc_fast *uf_regs;
1429         int ret_val;
1430         u32 upsmr, maccfg2, tbiBaseAddress;
1431         u16 value;
1432
1433         ugeth_vdbg("%s: IN", __FUNCTION__);
1434
1435         ug_info = ugeth->ug_info;
1436         ug_regs = ugeth->ug_regs;
1437         uf_regs = ugeth->uccf->uf_regs;
1438
1439         /*                    Set MACCFG2                    */
1440         maccfg2 = in_be32(&ug_regs->maccfg2);
1441         maccfg2 &= ~MACCFG2_INTERFACE_MODE_MASK;
1442         if ((ugeth->max_speed == SPEED_10) ||
1443             (ugeth->max_speed == SPEED_100))
1444                 maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
1445         else if (ugeth->max_speed == SPEED_1000)
1446                 maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE;
1447         maccfg2 |= ug_info->padAndCrc;
1448         out_be32(&ug_regs->maccfg2, maccfg2);
1449
1450         /*                    Set UPSMR                      */
1451         upsmr = in_be32(&uf_regs->upsmr);
1452         upsmr &= ~(UPSMR_RPM | UPSMR_R10M | UPSMR_TBIM | UPSMR_RMM);
1453         if ((ugeth->phy_interface == PHY_INTERFACE_MODE_RMII) ||
1454             (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII) ||
1455             (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_ID) ||
1456             (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1457                 upsmr |= UPSMR_RPM;
1458                 switch (ugeth->max_speed) {
1459                 case SPEED_10:
1460                         upsmr |= UPSMR_R10M;
1461                         /* FALLTHROUGH */
1462                 case SPEED_100:
1463                         if (ugeth->phy_interface != PHY_INTERFACE_MODE_RTBI)
1464                                 upsmr |= UPSMR_RMM;
1465                 }
1466         }
1467         if ((ugeth->phy_interface == PHY_INTERFACE_MODE_TBI) ||
1468             (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1469                 upsmr |= UPSMR_TBIM;
1470         }
1471         out_be32(&uf_regs->upsmr, upsmr);
1472
1473         /* Disable autonegotiation in tbi mode, because by default it
1474         comes up in autonegotiation mode. */
1475         /* Note that this depends on proper setting in utbipar register. */
1476         if ((ugeth->phy_interface == PHY_INTERFACE_MODE_TBI) ||
1477             (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1478                 tbiBaseAddress = in_be32(&ug_regs->utbipar);
1479                 tbiBaseAddress &= UTBIPAR_PHY_ADDRESS_MASK;
1480                 tbiBaseAddress >>= UTBIPAR_PHY_ADDRESS_SHIFT;
1481                 value = ugeth->phydev->bus->read(ugeth->phydev->bus,
1482                                 (u8) tbiBaseAddress, ENET_TBI_MII_CR);
1483                 value &= ~0x1000;       /* Turn off autonegotiation */
1484                 ugeth->phydev->bus->write(ugeth->phydev->bus,
1485                                 (u8) tbiBaseAddress, ENET_TBI_MII_CR, value);
1486         }
1487
1488         init_check_frame_length_mode(ug_info->lengthCheckRx, &ug_regs->maccfg2);
1489
1490         ret_val = init_preamble_length(ug_info->prel, &ug_regs->maccfg2);
1491         if (ret_val != 0) {
1492                 ugeth_err
1493                     ("%s: Preamble length must be between 3 and 7 inclusive.",
1494                      __FUNCTION__);
1495                 return ret_val;
1496         }
1497
1498         return 0;
1499 }
1500
1501 /* Called every time the controller might need to be made
1502  * aware of new link state.  The PHY code conveys this
1503  * information through variables in the ugeth structure, and this
1504  * function converts those variables into the appropriate
1505  * register values, and can bring down the device if needed.
1506  */
1507
1508 static void adjust_link(struct net_device *dev)
1509 {
1510         struct ucc_geth_private *ugeth = netdev_priv(dev);
1511         struct ucc_geth *ug_regs;
1512         struct ucc_fast *uf_regs;
1513         struct phy_device *phydev = ugeth->phydev;
1514         unsigned long flags;
1515         int new_state = 0;
1516
1517         ug_regs = ugeth->ug_regs;
1518         uf_regs = ugeth->uccf->uf_regs;
1519
1520         spin_lock_irqsave(&ugeth->lock, flags);
1521
1522         if (phydev->link) {
1523                 u32 tempval = in_be32(&ug_regs->maccfg2);
1524                 u32 upsmr = in_be32(&uf_regs->upsmr);
1525                 /* Now we make sure that we can be in full duplex mode.
1526                  * If not, we operate in half-duplex mode. */
1527                 if (phydev->duplex != ugeth->oldduplex) {
1528                         new_state = 1;
1529                         if (!(phydev->duplex))
1530                                 tempval &= ~(MACCFG2_FDX);
1531                         else
1532                                 tempval |= MACCFG2_FDX;
1533                         ugeth->oldduplex = phydev->duplex;
1534                 }
1535
1536                 if (phydev->speed != ugeth->oldspeed) {
1537                         new_state = 1;
1538                         switch (phydev->speed) {
1539                         case SPEED_1000:
1540                                 tempval = ((tempval &
1541                                             ~(MACCFG2_INTERFACE_MODE_MASK)) |
1542                                             MACCFG2_INTERFACE_MODE_BYTE);
1543                                 break;
1544                         case SPEED_100:
1545                         case SPEED_10:
1546                                 tempval = ((tempval &
1547                                             ~(MACCFG2_INTERFACE_MODE_MASK)) |
1548                                             MACCFG2_INTERFACE_MODE_NIBBLE);
1549                                 /* if reduced mode, re-set UPSMR.R10M */
1550                                 if ((ugeth->phy_interface == PHY_INTERFACE_MODE_RMII) ||
1551                                     (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII) ||
1552                                     (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_ID) ||
1553                                     (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1554                                         if (phydev->speed == SPEED_10)
1555                                                 upsmr |= UPSMR_R10M;
1556                                         else
1557                                                 upsmr &= ~(UPSMR_R10M);
1558                                 }
1559                                 break;
1560                         default:
1561                                 if (netif_msg_link(ugeth))
1562                                         ugeth_warn(
1563                                                 "%s: Ack!  Speed (%d) is not 10/100/1000!",
1564                                                 dev->name, phydev->speed);
1565                                 break;
1566                         }
1567                         ugeth->oldspeed = phydev->speed;
1568                 }
1569
1570                 out_be32(&ug_regs->maccfg2, tempval);
1571                 out_be32(&uf_regs->upsmr, upsmr);
1572
1573                 if (!ugeth->oldlink) {
1574                         new_state = 1;
1575                         ugeth->oldlink = 1;
1576                         netif_schedule(dev);
1577                 }
1578         } else if (ugeth->oldlink) {
1579                         new_state = 1;
1580                         ugeth->oldlink = 0;
1581                         ugeth->oldspeed = 0;
1582                         ugeth->oldduplex = -1;
1583         }
1584
1585         if (new_state && netif_msg_link(ugeth))
1586                 phy_print_status(phydev);
1587
1588         spin_unlock_irqrestore(&ugeth->lock, flags);
1589 }
1590
1591 /* Configure the PHY for dev.
1592  * returns 0 if success.  -1 if failure
1593  */
1594 static int init_phy(struct net_device *dev)
1595 {
1596         struct ucc_geth_private *priv = netdev_priv(dev);
1597         struct phy_device *phydev;
1598         char phy_id[BUS_ID_SIZE];
1599
1600         priv->oldlink = 0;
1601         priv->oldspeed = 0;
1602         priv->oldduplex = -1;
1603
1604         snprintf(phy_id, BUS_ID_SIZE, PHY_ID_FMT, priv->ug_info->mdio_bus,
1605                         priv->ug_info->phy_address);
1606
1607         phydev = phy_connect(dev, phy_id, &adjust_link, 0, priv->phy_interface);
1608
1609         if (IS_ERR(phydev)) {
1610                 printk("%s: Could not attach to PHY\n", dev->name);
1611                 return PTR_ERR(phydev);
1612         }
1613
1614         phydev->supported &= (ADVERTISED_10baseT_Half |
1615                                  ADVERTISED_10baseT_Full |
1616                                  ADVERTISED_100baseT_Half |
1617                                  ADVERTISED_100baseT_Full);
1618
1619         if (priv->max_speed == SPEED_1000)
1620                 phydev->supported |= ADVERTISED_1000baseT_Full;
1621
1622         phydev->advertising = phydev->supported;
1623
1624         priv->phydev = phydev;
1625
1626         return 0;
1627 }
1628
1629
1630
1631 static int ugeth_graceful_stop_tx(struct ucc_geth_private *ugeth)
1632 {
1633         struct ucc_fast_private *uccf;
1634         u32 cecr_subblock;
1635         u32 temp;
1636
1637         uccf = ugeth->uccf;
1638
1639         /* Mask GRACEFUL STOP TX interrupt bit and clear it */
1640         temp = in_be32(uccf->p_uccm);
1641         temp &= ~UCCE_GRA;
1642         out_be32(uccf->p_uccm, temp);
1643         out_be32(uccf->p_ucce, UCCE_GRA);       /* clear by writing 1 */
1644
1645         /* Issue host command */
1646         cecr_subblock =
1647             ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
1648         qe_issue_cmd(QE_GRACEFUL_STOP_TX, cecr_subblock,
1649                      QE_CR_PROTOCOL_ETHERNET, 0);
1650
1651         /* Wait for command to complete */
1652         do {
1653                 temp = in_be32(uccf->p_ucce);
1654         } while (!(temp & UCCE_GRA));
1655
1656         uccf->stopped_tx = 1;
1657
1658         return 0;
1659 }
1660
1661 static int ugeth_graceful_stop_rx(struct ucc_geth_private * ugeth)
1662 {
1663         struct ucc_fast_private *uccf;
1664         u32 cecr_subblock;
1665         u8 temp;
1666
1667         uccf = ugeth->uccf;
1668
1669         /* Clear acknowledge bit */
1670         temp = ugeth->p_rx_glbl_pram->rxgstpack;
1671         temp &= ~GRACEFUL_STOP_ACKNOWLEDGE_RX;
1672         ugeth->p_rx_glbl_pram->rxgstpack = temp;
1673
1674         /* Keep issuing command and checking acknowledge bit until
1675         it is asserted, according to spec */
1676         do {
1677                 /* Issue host command */
1678                 cecr_subblock =
1679                     ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.
1680                                                 ucc_num);
1681                 qe_issue_cmd(QE_GRACEFUL_STOP_RX, cecr_subblock,
1682                              QE_CR_PROTOCOL_ETHERNET, 0);
1683
1684                 temp = ugeth->p_rx_glbl_pram->rxgstpack;
1685         } while (!(temp & GRACEFUL_STOP_ACKNOWLEDGE_RX));
1686
1687         uccf->stopped_rx = 1;
1688
1689         return 0;
1690 }
1691
1692 static int ugeth_restart_tx(struct ucc_geth_private *ugeth)
1693 {
1694         struct ucc_fast_private *uccf;
1695         u32 cecr_subblock;
1696
1697         uccf = ugeth->uccf;
1698
1699         cecr_subblock =
1700             ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
1701         qe_issue_cmd(QE_RESTART_TX, cecr_subblock, QE_CR_PROTOCOL_ETHERNET, 0);
1702         uccf->stopped_tx = 0;
1703
1704         return 0;
1705 }
1706
1707 static int ugeth_restart_rx(struct ucc_geth_private *ugeth)
1708 {
1709         struct ucc_fast_private *uccf;
1710         u32 cecr_subblock;
1711
1712         uccf = ugeth->uccf;
1713
1714         cecr_subblock =
1715             ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
1716         qe_issue_cmd(QE_RESTART_RX, cecr_subblock, QE_CR_PROTOCOL_ETHERNET,
1717                      0);
1718         uccf->stopped_rx = 0;
1719
1720         return 0;
1721 }
1722
1723 static int ugeth_enable(struct ucc_geth_private *ugeth, enum comm_dir mode)
1724 {
1725         struct ucc_fast_private *uccf;
1726         int enabled_tx, enabled_rx;
1727
1728         uccf = ugeth->uccf;
1729
1730         /* check if the UCC number is in range. */
1731         if (ugeth->ug_info->uf_info.ucc_num >= UCC_MAX_NUM) {
1732                 ugeth_err("%s: ucc_num out of range.", __FUNCTION__);
1733                 return -EINVAL;
1734         }
1735
1736         enabled_tx = uccf->enabled_tx;
1737         enabled_rx = uccf->enabled_rx;
1738
1739         /* Get Tx and Rx going again, in case this channel was actively
1740         disabled. */
1741         if ((mode & COMM_DIR_TX) && (!enabled_tx) && uccf->stopped_tx)
1742                 ugeth_restart_tx(ugeth);
1743         if ((mode & COMM_DIR_RX) && (!enabled_rx) && uccf->stopped_rx)
1744                 ugeth_restart_rx(ugeth);
1745
1746         ucc_fast_enable(uccf, mode);    /* OK to do even if not disabled */
1747
1748         return 0;
1749
1750 }
1751
1752 static int ugeth_disable(struct ucc_geth_private * ugeth, enum comm_dir mode)
1753 {
1754         struct ucc_fast_private *uccf;
1755
1756         uccf = ugeth->uccf;
1757
1758         /* check if the UCC number is in range. */
1759         if (ugeth->ug_info->uf_info.ucc_num >= UCC_MAX_NUM) {
1760                 ugeth_err("%s: ucc_num out of range.", __FUNCTION__);
1761                 return -EINVAL;
1762         }
1763
1764         /* Stop any transmissions */
1765         if ((mode & COMM_DIR_TX) && uccf->enabled_tx && !uccf->stopped_tx)
1766                 ugeth_graceful_stop_tx(ugeth);
1767
1768         /* Stop any receptions */
1769         if ((mode & COMM_DIR_RX) && uccf->enabled_rx && !uccf->stopped_rx)
1770                 ugeth_graceful_stop_rx(ugeth);
1771
1772         ucc_fast_disable(ugeth->uccf, mode); /* OK to do even if not enabled */
1773
1774         return 0;
1775 }
1776
1777 static void ugeth_dump_regs(struct ucc_geth_private *ugeth)
1778 {
1779 #ifdef DEBUG
1780         ucc_fast_dump_regs(ugeth->uccf);
1781         dump_regs(ugeth);
1782         dump_bds(ugeth);
1783 #endif
1784 }
1785
1786 #ifdef CONFIG_UGETH_FILTERING
1787 static int ugeth_ext_filtering_serialize_tad(struct ucc_geth_tad_params *
1788                                              p_UccGethTadParams,
1789                                              struct qe_fltr_tad *qe_fltr_tad)
1790 {
1791         u16 temp;
1792
1793         /* Zero serialized TAD */
1794         memset(qe_fltr_tad, 0, QE_FLTR_TAD_SIZE);
1795
1796         qe_fltr_tad->serialized[0] |= UCC_GETH_TAD_V;   /* Must have this */
1797         if (p_UccGethTadParams->rx_non_dynamic_extended_features_mode ||
1798             (p_UccGethTadParams->vtag_op != UCC_GETH_VLAN_OPERATION_TAGGED_NOP)
1799             || (p_UccGethTadParams->vnontag_op !=
1800                 UCC_GETH_VLAN_OPERATION_NON_TAGGED_NOP)
1801             )
1802                 qe_fltr_tad->serialized[0] |= UCC_GETH_TAD_EF;
1803         if (p_UccGethTadParams->reject_frame)
1804                 qe_fltr_tad->serialized[0] |= UCC_GETH_TAD_REJ;
1805         temp =
1806             (u16) (((u16) p_UccGethTadParams->
1807                     vtag_op) << UCC_GETH_TAD_VTAG_OP_SHIFT);
1808         qe_fltr_tad->serialized[0] |= (u8) (temp >> 8); /* upper bits */
1809
1810         qe_fltr_tad->serialized[1] |= (u8) (temp & 0x00ff);     /* lower bits */
1811         if (p_UccGethTadParams->vnontag_op ==
1812             UCC_GETH_VLAN_OPERATION_NON_TAGGED_Q_TAG_INSERT)
1813                 qe_fltr_tad->serialized[1] |= UCC_GETH_TAD_V_NON_VTAG_OP;
1814         qe_fltr_tad->serialized[1] |=
1815             p_UccGethTadParams->rqos << UCC_GETH_TAD_RQOS_SHIFT;
1816
1817         qe_fltr_tad->serialized[2] |=
1818             p_UccGethTadParams->vpri << UCC_GETH_TAD_V_PRIORITY_SHIFT;
1819         /* upper bits */
1820         qe_fltr_tad->serialized[2] |= (u8) (p_UccGethTadParams->vid >> 8);
1821         /* lower bits */
1822         qe_fltr_tad->serialized[3] |= (u8) (p_UccGethTadParams->vid & 0x00ff);
1823
1824         return 0;
1825 }
1826
1827 static struct enet_addr_container_t
1828     *ugeth_82xx_filtering_get_match_addr_in_hash(struct ucc_geth_private *ugeth,
1829                                                  struct enet_addr *p_enet_addr)
1830 {
1831         struct enet_addr_container *enet_addr_cont;
1832         struct list_head *p_lh;
1833         u16 i, num;
1834         int32_t j;
1835         u8 *p_counter;
1836
1837         if ((*p_enet_addr)[0] & ENET_GROUP_ADDR) {
1838                 p_lh = &ugeth->group_hash_q;
1839                 p_counter = &(ugeth->numGroupAddrInHash);
1840         } else {
1841                 p_lh = &ugeth->ind_hash_q;
1842                 p_counter = &(ugeth->numIndAddrInHash);
1843         }
1844
1845         if (!p_lh)
1846                 return NULL;
1847
1848         num = *p_counter;
1849
1850         for (i = 0; i < num; i++) {
1851                 enet_addr_cont =
1852                     (struct enet_addr_container *)
1853                     ENET_ADDR_CONT_ENTRY(dequeue(p_lh));
1854                 for (j = ENET_NUM_OCTETS_PER_ADDRESS - 1; j >= 0; j--) {
1855                         if ((*p_enet_addr)[j] != (enet_addr_cont->address)[j])
1856                                 break;
1857                         if (j == 0)
1858                                 return enet_addr_cont;  /* Found */
1859                 }
1860                 enqueue(p_lh, &enet_addr_cont->node);   /* Put it back */
1861         }
1862         return NULL;
1863 }
1864
1865 static int ugeth_82xx_filtering_add_addr_in_hash(struct ucc_geth_private *ugeth,
1866                                                  struct enet_addr *p_enet_addr)
1867 {
1868         enum ucc_geth_enet_address_recognition_location location;
1869         struct enet_addr_container *enet_addr_cont;
1870         struct list_head *p_lh;
1871         u8 i;
1872         u32 limit;
1873         u8 *p_counter;
1874
1875         if ((*p_enet_addr)[0] & ENET_GROUP_ADDR) {
1876                 p_lh = &ugeth->group_hash_q;
1877                 limit = ugeth->ug_info->maxGroupAddrInHash;
1878                 location =
1879                     UCC_GETH_ENET_ADDRESS_RECOGNITION_LOCATION_GROUP_HASH;
1880                 p_counter = &(ugeth->numGroupAddrInHash);
1881         } else {
1882                 p_lh = &ugeth->ind_hash_q;
1883                 limit = ugeth->ug_info->maxIndAddrInHash;
1884                 location =
1885                     UCC_GETH_ENET_ADDRESS_RECOGNITION_LOCATION_INDIVIDUAL_HASH;
1886                 p_counter = &(ugeth->numIndAddrInHash);
1887         }
1888
1889         if ((enet_addr_cont =
1890              ugeth_82xx_filtering_get_match_addr_in_hash(ugeth, p_enet_addr))) {
1891                 list_add(p_lh, &enet_addr_cont->node);  /* Put it back */
1892                 return 0;
1893         }
1894         if ((!p_lh) || (!(*p_counter < limit)))
1895                 return -EBUSY;
1896         if (!(enet_addr_cont = get_enet_addr_container()))
1897                 return -ENOMEM;
1898         for (i = 0; i < ENET_NUM_OCTETS_PER_ADDRESS; i++)
1899                 (enet_addr_cont->address)[i] = (*p_enet_addr)[i];
1900         enet_addr_cont->location = location;
1901         enqueue(p_lh, &enet_addr_cont->node);   /* Put it back */
1902         ++(*p_counter);
1903
1904         hw_add_addr_in_hash(ugeth, enet_addr_cont->address);
1905         return 0;
1906 }
1907
1908 static int ugeth_82xx_filtering_clear_addr_in_hash(struct ucc_geth_private *ugeth,
1909                                                    struct enet_addr *p_enet_addr)
1910 {
1911         struct ucc_geth_82xx_address_filtering_pram *p_82xx_addr_filt;
1912         struct enet_addr_container *enet_addr_cont;
1913         struct ucc_fast_private *uccf;
1914         enum comm_dir comm_dir;
1915         u16 i, num;
1916         struct list_head *p_lh;
1917         u32 *addr_h, *addr_l;
1918         u8 *p_counter;
1919
1920         uccf = ugeth->uccf;
1921
1922         p_82xx_addr_filt =
1923             (struct ucc_geth_82xx_address_filtering_pram *) ugeth->p_rx_glbl_pram->
1924             addressfiltering;
1925
1926         if (!
1927             (enet_addr_cont =
1928              ugeth_82xx_filtering_get_match_addr_in_hash(ugeth, p_enet_addr)))
1929                 return -ENOENT;
1930
1931         /* It's been found and removed from the CQ. */
1932         /* Now destroy its container */
1933         put_enet_addr_container(enet_addr_cont);
1934
1935         if ((*p_enet_addr)[0] & ENET_GROUP_ADDR) {
1936                 addr_h = &(p_82xx_addr_filt->gaddr_h);
1937                 addr_l = &(p_82xx_addr_filt->gaddr_l);
1938                 p_lh = &ugeth->group_hash_q;
1939                 p_counter = &(ugeth->numGroupAddrInHash);
1940         } else {
1941                 addr_h = &(p_82xx_addr_filt->iaddr_h);
1942                 addr_l = &(p_82xx_addr_filt->iaddr_l);
1943                 p_lh = &ugeth->ind_hash_q;
1944                 p_counter = &(ugeth->numIndAddrInHash);
1945         }
1946
1947         comm_dir = 0;
1948         if (uccf->enabled_tx)
1949                 comm_dir |= COMM_DIR_TX;
1950         if (uccf->enabled_rx)
1951                 comm_dir |= COMM_DIR_RX;
1952         if (comm_dir)
1953                 ugeth_disable(ugeth, comm_dir);
1954
1955         /* Clear the hash table. */
1956         out_be32(addr_h, 0x00000000);
1957         out_be32(addr_l, 0x00000000);
1958
1959         /* Add all remaining CQ elements back into hash */
1960         num = --(*p_counter);
1961         for (i = 0; i < num; i++) {
1962                 enet_addr_cont =
1963                     (struct enet_addr_container *)
1964                     ENET_ADDR_CONT_ENTRY(dequeue(p_lh));
1965                 hw_add_addr_in_hash(ugeth, enet_addr_cont->address);
1966                 enqueue(p_lh, &enet_addr_cont->node);   /* Put it back */
1967         }
1968
1969         if (comm_dir)
1970                 ugeth_enable(ugeth, comm_dir);
1971
1972         return 0;
1973 }
1974 #endif /* CONFIG_UGETH_FILTERING */
1975
1976 static int ugeth_82xx_filtering_clear_all_addr_in_hash(struct ucc_geth_private *
1977                                                        ugeth,
1978                                                        enum enet_addr_type
1979                                                        enet_addr_type)
1980 {
1981         struct ucc_geth_82xx_address_filtering_pram *p_82xx_addr_filt;
1982         struct ucc_fast_private *uccf;
1983         enum comm_dir comm_dir;
1984         struct list_head *p_lh;
1985         u16 i, num;
1986         u32 *addr_h, *addr_l;
1987         u8 *p_counter;
1988
1989         uccf = ugeth->uccf;
1990
1991         p_82xx_addr_filt =
1992             (struct ucc_geth_82xx_address_filtering_pram *) ugeth->p_rx_glbl_pram->
1993             addressfiltering;
1994
1995         if (enet_addr_type == ENET_ADDR_TYPE_GROUP) {
1996                 addr_h = &(p_82xx_addr_filt->gaddr_h);
1997                 addr_l = &(p_82xx_addr_filt->gaddr_l);
1998                 p_lh = &ugeth->group_hash_q;
1999                 p_counter = &(ugeth->numGroupAddrInHash);
2000         } else if (enet_addr_type == ENET_ADDR_TYPE_INDIVIDUAL) {
2001                 addr_h = &(p_82xx_addr_filt->iaddr_h);
2002                 addr_l = &(p_82xx_addr_filt->iaddr_l);
2003                 p_lh = &ugeth->ind_hash_q;
2004                 p_counter = &(ugeth->numIndAddrInHash);
2005         } else
2006                 return -EINVAL;
2007
2008         comm_dir = 0;
2009         if (uccf->enabled_tx)
2010                 comm_dir |= COMM_DIR_TX;
2011         if (uccf->enabled_rx)
2012                 comm_dir |= COMM_DIR_RX;
2013         if (comm_dir)
2014                 ugeth_disable(ugeth, comm_dir);
2015
2016         /* Clear the hash table. */
2017         out_be32(addr_h, 0x00000000);
2018         out_be32(addr_l, 0x00000000);
2019
2020         if (!p_lh)
2021                 return 0;
2022
2023         num = *p_counter;
2024
2025         /* Delete all remaining CQ elements */
2026         for (i = 0; i < num; i++)
2027                 put_enet_addr_container(ENET_ADDR_CONT_ENTRY(dequeue(p_lh)));
2028
2029         *p_counter = 0;
2030
2031         if (comm_dir)
2032                 ugeth_enable(ugeth, comm_dir);
2033
2034         return 0;
2035 }
2036
2037 #ifdef CONFIG_UGETH_FILTERING
2038 static int ugeth_82xx_filtering_add_addr_in_paddr(struct ucc_geth_private *ugeth,
2039                                                   struct enet_addr *p_enet_addr,
2040                                                   u8 paddr_num)
2041 {
2042         int i;
2043
2044         if ((*p_enet_addr)[0] & ENET_GROUP_ADDR)
2045                 ugeth_warn
2046                     ("%s: multicast address added to paddr will have no "
2047                      "effect - is this what you wanted?",
2048                      __FUNCTION__);
2049
2050         ugeth->indAddrRegUsed[paddr_num] = 1;   /* mark this paddr as used */
2051         /* store address in our database */
2052         for (i = 0; i < ENET_NUM_OCTETS_PER_ADDRESS; i++)
2053                 ugeth->paddr[paddr_num][i] = (*p_enet_addr)[i];
2054         /* put in hardware */
2055         return hw_add_addr_in_paddr(ugeth, p_enet_addr, paddr_num);
2056 }
2057 #endif /* CONFIG_UGETH_FILTERING */
2058
2059 static int ugeth_82xx_filtering_clear_addr_in_paddr(struct ucc_geth_private *ugeth,
2060                                                     u8 paddr_num)
2061 {
2062         ugeth->indAddrRegUsed[paddr_num] = 0; /* mark this paddr as not used */
2063         return hw_clear_addr_in_paddr(ugeth, paddr_num);/* clear in hardware */
2064 }
2065
2066 static void ucc_geth_memclean(struct ucc_geth_private *ugeth)
2067 {
2068         u16 i, j;
2069         u8 *bd;
2070
2071         if (!ugeth)
2072                 return;
2073
2074         if (ugeth->uccf)
2075                 ucc_fast_free(ugeth->uccf);
2076
2077         if (ugeth->p_thread_data_tx) {
2078                 qe_muram_free(ugeth->thread_dat_tx_offset);
2079                 ugeth->p_thread_data_tx = NULL;
2080         }
2081         if (ugeth->p_thread_data_rx) {
2082                 qe_muram_free(ugeth->thread_dat_rx_offset);
2083                 ugeth->p_thread_data_rx = NULL;
2084         }
2085         if (ugeth->p_exf_glbl_param) {
2086                 qe_muram_free(ugeth->exf_glbl_param_offset);
2087                 ugeth->p_exf_glbl_param = NULL;
2088         }
2089         if (ugeth->p_rx_glbl_pram) {
2090                 qe_muram_free(ugeth->rx_glbl_pram_offset);
2091                 ugeth->p_rx_glbl_pram = NULL;
2092         }
2093         if (ugeth->p_tx_glbl_pram) {
2094                 qe_muram_free(ugeth->tx_glbl_pram_offset);
2095                 ugeth->p_tx_glbl_pram = NULL;
2096         }
2097         if (ugeth->p_send_q_mem_reg) {
2098                 qe_muram_free(ugeth->send_q_mem_reg_offset);
2099                 ugeth->p_send_q_mem_reg = NULL;
2100         }
2101         if (ugeth->p_scheduler) {
2102                 qe_muram_free(ugeth->scheduler_offset);
2103                 ugeth->p_scheduler = NULL;
2104         }
2105         if (ugeth->p_tx_fw_statistics_pram) {
2106                 qe_muram_free(ugeth->tx_fw_statistics_pram_offset);
2107                 ugeth->p_tx_fw_statistics_pram = NULL;
2108         }
2109         if (ugeth->p_rx_fw_statistics_pram) {
2110                 qe_muram_free(ugeth->rx_fw_statistics_pram_offset);
2111                 ugeth->p_rx_fw_statistics_pram = NULL;
2112         }
2113         if (ugeth->p_rx_irq_coalescing_tbl) {
2114                 qe_muram_free(ugeth->rx_irq_coalescing_tbl_offset);
2115                 ugeth->p_rx_irq_coalescing_tbl = NULL;
2116         }
2117         if (ugeth->p_rx_bd_qs_tbl) {
2118                 qe_muram_free(ugeth->rx_bd_qs_tbl_offset);
2119                 ugeth->p_rx_bd_qs_tbl = NULL;
2120         }
2121         if (ugeth->p_init_enet_param_shadow) {
2122                 return_init_enet_entries(ugeth,
2123                                          &(ugeth->p_init_enet_param_shadow->
2124                                            rxthread[0]),
2125                                          ENET_INIT_PARAM_MAX_ENTRIES_RX,
2126                                          ugeth->ug_info->riscRx, 1);
2127                 return_init_enet_entries(ugeth,
2128                                          &(ugeth->p_init_enet_param_shadow->
2129                                            txthread[0]),
2130                                          ENET_INIT_PARAM_MAX_ENTRIES_TX,
2131                                          ugeth->ug_info->riscTx, 0);
2132                 kfree(ugeth->p_init_enet_param_shadow);
2133                 ugeth->p_init_enet_param_shadow = NULL;
2134         }
2135         for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) {
2136                 bd = ugeth->p_tx_bd_ring[i];
2137                 if (!bd)
2138                         continue;
2139                 for (j = 0; j < ugeth->ug_info->bdRingLenTx[i]; j++) {
2140                         if (ugeth->tx_skbuff[i][j]) {
2141                                 dma_unmap_single(NULL,
2142                                                  ((qe_bd_t *)bd)->buf,
2143                                                  (in_be32((u32 *)bd) &
2144                                                   BD_LENGTH_MASK),
2145                                                  DMA_TO_DEVICE);
2146                                 dev_kfree_skb_any(ugeth->tx_skbuff[i][j]);
2147                                 ugeth->tx_skbuff[i][j] = NULL;
2148                         }
2149                 }
2150
2151                 kfree(ugeth->tx_skbuff[i]);
2152
2153                 if (ugeth->p_tx_bd_ring[i]) {
2154                         if (ugeth->ug_info->uf_info.bd_mem_part ==
2155                             MEM_PART_SYSTEM)
2156                                 kfree((void *)ugeth->tx_bd_ring_offset[i]);
2157                         else if (ugeth->ug_info->uf_info.bd_mem_part ==
2158                                  MEM_PART_MURAM)
2159                                 qe_muram_free(ugeth->tx_bd_ring_offset[i]);
2160                         ugeth->p_tx_bd_ring[i] = NULL;
2161                 }
2162         }
2163         for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
2164                 if (ugeth->p_rx_bd_ring[i]) {
2165                         /* Return existing data buffers in ring */
2166                         bd = ugeth->p_rx_bd_ring[i];
2167                         for (j = 0; j < ugeth->ug_info->bdRingLenRx[i]; j++) {
2168                                 if (ugeth->rx_skbuff[i][j]) {
2169                                         dma_unmap_single(NULL,
2170                                                 ((struct qe_bd *)bd)->buf,
2171                                                 ugeth->ug_info->
2172                                                 uf_info.max_rx_buf_length +
2173                                                 UCC_GETH_RX_DATA_BUF_ALIGNMENT,
2174                                                 DMA_FROM_DEVICE);
2175                                         dev_kfree_skb_any(
2176                                                 ugeth->rx_skbuff[i][j]);
2177                                         ugeth->rx_skbuff[i][j] = NULL;
2178                                 }
2179                                 bd += sizeof(struct qe_bd);
2180                         }
2181
2182                         kfree(ugeth->rx_skbuff[i]);
2183
2184                         if (ugeth->ug_info->uf_info.bd_mem_part ==
2185                             MEM_PART_SYSTEM)
2186                                 kfree((void *)ugeth->rx_bd_ring_offset[i]);
2187                         else if (ugeth->ug_info->uf_info.bd_mem_part ==
2188                                  MEM_PART_MURAM)
2189                                 qe_muram_free(ugeth->rx_bd_ring_offset[i]);
2190                         ugeth->p_rx_bd_ring[i] = NULL;
2191                 }
2192         }
2193         while (!list_empty(&ugeth->group_hash_q))
2194                 put_enet_addr_container(ENET_ADDR_CONT_ENTRY
2195                                         (dequeue(&ugeth->group_hash_q)));
2196         while (!list_empty(&ugeth->ind_hash_q))
2197                 put_enet_addr_container(ENET_ADDR_CONT_ENTRY
2198                                         (dequeue(&ugeth->ind_hash_q)));
2199
2200 }
2201
2202 static void ucc_geth_set_multi(struct net_device *dev)
2203 {
2204         struct ucc_geth_private *ugeth;
2205         struct dev_mc_list *dmi;
2206         struct ucc_fast *uf_regs;
2207         struct ucc_geth_82xx_address_filtering_pram *p_82xx_addr_filt;
2208         u8 tempaddr[6];
2209         u8 *mcptr, *tdptr;
2210         int i, j;
2211
2212         ugeth = netdev_priv(dev);
2213
2214         uf_regs = ugeth->uccf->uf_regs;
2215
2216         if (dev->flags & IFF_PROMISC) {
2217
2218                 uf_regs->upsmr |= UPSMR_PRO;
2219
2220         } else {
2221
2222                 uf_regs->upsmr &= ~UPSMR_PRO;
2223
2224                 p_82xx_addr_filt =
2225                     (struct ucc_geth_82xx_address_filtering_pram *) ugeth->
2226                     p_rx_glbl_pram->addressfiltering;
2227
2228                 if (dev->flags & IFF_ALLMULTI) {
2229                         /* Catch all multicast addresses, so set the
2230                          * filter to all 1's.
2231                          */
2232                         out_be32(&p_82xx_addr_filt->gaddr_h, 0xffffffff);
2233                         out_be32(&p_82xx_addr_filt->gaddr_l, 0xffffffff);
2234                 } else {
2235                         /* Clear filter and add the addresses in the list.
2236                          */
2237                         out_be32(&p_82xx_addr_filt->gaddr_h, 0x0);
2238                         out_be32(&p_82xx_addr_filt->gaddr_l, 0x0);
2239
2240                         dmi = dev->mc_list;
2241
2242                         for (i = 0; i < dev->mc_count; i++, dmi = dmi->next) {
2243
2244                                 /* Only support group multicast for now.
2245                                  */
2246                                 if (!(dmi->dmi_addr[0] & 1))
2247                                         continue;
2248
2249                                 /* The address in dmi_addr is LSB first,
2250                                  * and taddr is MSB first.  We have to
2251                                  * copy bytes MSB first from dmi_addr.
2252                                  */
2253                                 mcptr = (u8 *) dmi->dmi_addr + 5;
2254                                 tdptr = (u8 *) tempaddr;
2255                                 for (j = 0; j < 6; j++)
2256                                         *tdptr++ = *mcptr--;
2257
2258                                 /* Ask CPM to run CRC and set bit in
2259                                  * filter mask.
2260                                  */
2261                                 hw_add_addr_in_hash(ugeth, tempaddr);
2262                         }
2263                 }
2264         }
2265 }
2266
2267 static void ucc_geth_stop(struct ucc_geth_private *ugeth)
2268 {
2269         struct ucc_geth *ug_regs = ugeth->ug_regs;
2270         struct phy_device *phydev = ugeth->phydev;
2271         u32 tempval;
2272
2273         ugeth_vdbg("%s: IN", __FUNCTION__);
2274
2275         /* Disable the controller */
2276         ugeth_disable(ugeth, COMM_DIR_RX_AND_TX);
2277
2278         /* Tell the kernel the link is down */
2279         phy_stop(phydev);
2280
2281         /* Mask all interrupts */
2282         out_be32(ugeth->uccf->p_ucce, 0x00000000);
2283
2284         /* Clear all interrupts */
2285         out_be32(ugeth->uccf->p_ucce, 0xffffffff);
2286
2287         /* Disable Rx and Tx */
2288         tempval = in_be32(&ug_regs->maccfg1);
2289         tempval &= ~(MACCFG1_ENABLE_RX | MACCFG1_ENABLE_TX);
2290         out_be32(&ug_regs->maccfg1, tempval);
2291
2292         free_irq(ugeth->ug_info->uf_info.irq, ugeth->dev);
2293
2294         ucc_geth_memclean(ugeth);
2295 }
2296
2297 static int ucc_struct_init(struct ucc_geth_private *ugeth)
2298 {
2299         struct ucc_geth_info *ug_info;
2300         struct ucc_fast_info *uf_info;
2301         int i;
2302
2303         ug_info = ugeth->ug_info;
2304         uf_info = &ug_info->uf_info;
2305
2306         /* Create CQs for hash tables */
2307         INIT_LIST_HEAD(&ugeth->group_hash_q);
2308         INIT_LIST_HEAD(&ugeth->ind_hash_q);
2309
2310         if (!((uf_info->bd_mem_part == MEM_PART_SYSTEM) ||
2311               (uf_info->bd_mem_part == MEM_PART_MURAM))) {
2312                 ugeth_err("%s: Bad memory partition value.", __FUNCTION__);
2313                 return -EINVAL;
2314         }
2315
2316         /* Rx BD lengths */
2317         for (i = 0; i < ug_info->numQueuesRx; i++) {
2318                 if ((ug_info->bdRingLenRx[i] < UCC_GETH_RX_BD_RING_SIZE_MIN) ||
2319                     (ug_info->bdRingLenRx[i] %
2320                      UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT)) {
2321                         ugeth_err
2322                             ("%s: Rx BD ring length must be multiple of 4,"
2323                                 " no smaller than 8.", __FUNCTION__);
2324                         return -EINVAL;
2325                 }
2326         }
2327
2328         /* Tx BD lengths */
2329         for (i = 0; i < ug_info->numQueuesTx; i++) {
2330                 if (ug_info->bdRingLenTx[i] < UCC_GETH_TX_BD_RING_SIZE_MIN) {
2331                         ugeth_err
2332                             ("%s: Tx BD ring length must be no smaller than 2.",
2333                              __FUNCTION__);
2334                         return -EINVAL;
2335                 }
2336         }
2337
2338         /* mrblr */
2339         if ((uf_info->max_rx_buf_length == 0) ||
2340             (uf_info->max_rx_buf_length % UCC_GETH_MRBLR_ALIGNMENT)) {
2341                 ugeth_err
2342                     ("%s: max_rx_buf_length must be non-zero multiple of 128.",
2343                      __FUNCTION__);
2344                 return -EINVAL;
2345         }
2346
2347         /* num Tx queues */
2348         if (ug_info->numQueuesTx > NUM_TX_QUEUES) {
2349                 ugeth_err("%s: number of tx queues too large.", __FUNCTION__);
2350                 return -EINVAL;
2351         }
2352
2353         /* num Rx queues */
2354         if (ug_info->numQueuesRx > NUM_RX_QUEUES) {
2355                 ugeth_err("%s: number of rx queues too large.", __FUNCTION__);
2356                 return -EINVAL;
2357         }
2358
2359         /* l2qt */
2360         for (i = 0; i < UCC_GETH_VLAN_PRIORITY_MAX; i++) {
2361                 if (ug_info->l2qt[i] >= ug_info->numQueuesRx) {
2362                         ugeth_err
2363                             ("%s: VLAN priority table entry must not be"
2364                                 " larger than number of Rx queues.",
2365                              __FUNCTION__);
2366                         return -EINVAL;
2367                 }
2368         }
2369
2370         /* l3qt */
2371         for (i = 0; i < UCC_GETH_IP_PRIORITY_MAX; i++) {
2372                 if (ug_info->l3qt[i] >= ug_info->numQueuesRx) {
2373                         ugeth_err
2374                             ("%s: IP priority table entry must not be"
2375                                 " larger than number of Rx queues.",
2376                              __FUNCTION__);
2377                         return -EINVAL;
2378                 }
2379         }
2380
2381         if (ug_info->cam && !ug_info->ecamptr) {
2382                 ugeth_err("%s: If cam mode is chosen, must supply cam ptr.",
2383                           __FUNCTION__);
2384                 return -EINVAL;
2385         }
2386
2387         if ((ug_info->numStationAddresses !=
2388              UCC_GETH_NUM_OF_STATION_ADDRESSES_1)
2389             && ug_info->rxExtendedFiltering) {
2390                 ugeth_err("%s: Number of station addresses greater than 1 "
2391                           "not allowed in extended parsing mode.",
2392                           __FUNCTION__);
2393                 return -EINVAL;
2394         }
2395
2396         /* Generate uccm_mask for receive */
2397         uf_info->uccm_mask = ug_info->eventRegMask & UCCE_OTHER;/* Errors */
2398         for (i = 0; i < ug_info->numQueuesRx; i++)
2399                 uf_info->uccm_mask |= (UCCE_RXBF_SINGLE_MASK << i);
2400
2401         for (i = 0; i < ug_info->numQueuesTx; i++)
2402                 uf_info->uccm_mask |= (UCCE_TXBF_SINGLE_MASK << i);
2403         /* Initialize the general fast UCC block. */
2404         if (ucc_fast_init(uf_info, &ugeth->uccf)) {
2405                 ugeth_err("%s: Failed to init uccf.", __FUNCTION__);
2406                 ucc_geth_memclean(ugeth);
2407                 return -ENOMEM;
2408         }
2409
2410         ugeth->ug_regs = (struct ucc_geth *) ioremap(uf_info->regs, sizeof(struct ucc_geth));
2411
2412         return 0;
2413 }
2414
2415 static int ucc_geth_startup(struct ucc_geth_private *ugeth)
2416 {
2417         struct ucc_geth_82xx_address_filtering_pram *p_82xx_addr_filt;
2418         struct ucc_geth_init_pram *p_init_enet_pram;
2419         struct ucc_fast_private *uccf;
2420         struct ucc_geth_info *ug_info;
2421         struct ucc_fast_info *uf_info;
2422         struct ucc_fast *uf_regs;
2423         struct ucc_geth *ug_regs;
2424         int ret_val = -EINVAL;
2425         u32 remoder = UCC_GETH_REMODER_INIT;
2426         u32 init_enet_pram_offset, cecr_subblock, command, maccfg1;
2427         u32 ifstat, i, j, size, l2qt, l3qt, length;
2428         u16 temoder = UCC_GETH_TEMODER_INIT;
2429         u16 test;
2430         u8 function_code = 0;
2431         u8 *bd, *endOfRing;
2432         u8 numThreadsRxNumerical, numThreadsTxNumerical;
2433
2434         ugeth_vdbg("%s: IN", __FUNCTION__);
2435         uccf = ugeth->uccf;
2436         ug_info = ugeth->ug_info;
2437         uf_info = &ug_info->uf_info;
2438         uf_regs = uccf->uf_regs;
2439         ug_regs = ugeth->ug_regs;
2440
2441         switch (ug_info->numThreadsRx) {
2442         case UCC_GETH_NUM_OF_THREADS_1:
2443                 numThreadsRxNumerical = 1;
2444                 break;
2445         case UCC_GETH_NUM_OF_THREADS_2:
2446                 numThreadsRxNumerical = 2;
2447                 break;
2448         case UCC_GETH_NUM_OF_THREADS_4:
2449                 numThreadsRxNumerical = 4;
2450                 break;
2451         case UCC_GETH_NUM_OF_THREADS_6:
2452                 numThreadsRxNumerical = 6;
2453                 break;
2454         case UCC_GETH_NUM_OF_THREADS_8:
2455                 numThreadsRxNumerical = 8;
2456                 break;
2457         default:
2458                 ugeth_err("%s: Bad number of Rx threads value.", __FUNCTION__);
2459                 ucc_geth_memclean(ugeth);
2460                 return -EINVAL;
2461                 break;
2462         }
2463
2464         switch (ug_info->numThreadsTx) {
2465         case UCC_GETH_NUM_OF_THREADS_1:
2466                 numThreadsTxNumerical = 1;
2467                 break;
2468         case UCC_GETH_NUM_OF_THREADS_2:
2469                 numThreadsTxNumerical = 2;
2470                 break;
2471         case UCC_GETH_NUM_OF_THREADS_4:
2472                 numThreadsTxNumerical = 4;
2473                 break;
2474         case UCC_GETH_NUM_OF_THREADS_6:
2475                 numThreadsTxNumerical = 6;
2476                 break;
2477         case UCC_GETH_NUM_OF_THREADS_8:
2478                 numThreadsTxNumerical = 8;
2479                 break;
2480         default:
2481                 ugeth_err("%s: Bad number of Tx threads value.", __FUNCTION__);
2482                 ucc_geth_memclean(ugeth);
2483                 return -EINVAL;
2484                 break;
2485         }
2486
2487         /* Calculate rx_extended_features */
2488         ugeth->rx_non_dynamic_extended_features = ug_info->ipCheckSumCheck ||
2489             ug_info->ipAddressAlignment ||
2490             (ug_info->numStationAddresses !=
2491              UCC_GETH_NUM_OF_STATION_ADDRESSES_1);
2492
2493         ugeth->rx_extended_features = ugeth->rx_non_dynamic_extended_features ||
2494             (ug_info->vlanOperationTagged != UCC_GETH_VLAN_OPERATION_TAGGED_NOP)
2495             || (ug_info->vlanOperationNonTagged !=
2496                 UCC_GETH_VLAN_OPERATION_NON_TAGGED_NOP);
2497
2498         init_default_reg_vals(&uf_regs->upsmr,
2499                               &ug_regs->maccfg1, &ug_regs->maccfg2);
2500
2501         /*                    Set UPSMR                      */
2502         /* For more details see the hardware spec.           */
2503         init_rx_parameters(ug_info->bro,
2504                            ug_info->rsh, ug_info->pro, &uf_regs->upsmr);
2505
2506         /* We're going to ignore other registers for now, */
2507         /* except as needed to get up and running         */
2508
2509         /*                    Set MACCFG1                    */
2510         /* For more details see the hardware spec.           */
2511         init_flow_control_params(ug_info->aufc,
2512                                  ug_info->receiveFlowControl,
2513                                  1,
2514                                  ug_info->pausePeriod,
2515                                  ug_info->extensionField,
2516                                  &uf_regs->upsmr,
2517                                  &ug_regs->uempr, &ug_regs->maccfg1);
2518
2519         maccfg1 = in_be32(&ug_regs->maccfg1);
2520         maccfg1 |= MACCFG1_ENABLE_RX;
2521         maccfg1 |= MACCFG1_ENABLE_TX;
2522         out_be32(&ug_regs->maccfg1, maccfg1);
2523
2524         /*                    Set IPGIFG                     */
2525         /* For more details see the hardware spec.           */
2526         ret_val = init_inter_frame_gap_params(ug_info->nonBackToBackIfgPart1,
2527                                               ug_info->nonBackToBackIfgPart2,
2528                                               ug_info->
2529                                               miminumInterFrameGapEnforcement,
2530                                               ug_info->backToBackInterFrameGap,
2531                                               &ug_regs->ipgifg);
2532         if (ret_val != 0) {
2533                 ugeth_err("%s: IPGIFG initialization parameter too large.",
2534                           __FUNCTION__);
2535                 ucc_geth_memclean(ugeth);
2536                 return ret_val;
2537         }
2538
2539         /*                    Set HAFDUP                     */
2540         /* For more details see the hardware spec.           */
2541         ret_val = init_half_duplex_params(ug_info->altBeb,
2542                                           ug_info->backPressureNoBackoff,
2543                                           ug_info->noBackoff,
2544                                           ug_info->excessDefer,
2545                                           ug_info->altBebTruncation,
2546                                           ug_info->maxRetransmission,
2547                                           ug_info->collisionWindow,
2548                                           &ug_regs->hafdup);
2549         if (ret_val != 0) {
2550                 ugeth_err("%s: Half Duplex initialization parameter too large.",
2551                           __FUNCTION__);
2552                 ucc_geth_memclean(ugeth);
2553                 return ret_val;
2554         }
2555
2556         /*                    Set IFSTAT                     */
2557         /* For more details see the hardware spec.           */
2558         /* Read only - resets upon read                      */
2559         ifstat = in_be32(&ug_regs->ifstat);
2560
2561         /*                    Clear UEMPR                    */
2562         /* For more details see the hardware spec.           */
2563         out_be32(&ug_regs->uempr, 0);
2564
2565         /*                    Set UESCR                      */
2566         /* For more details see the hardware spec.           */
2567         init_hw_statistics_gathering_mode((ug_info->statisticsMode &
2568                                 UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE),
2569                                 0, &uf_regs->upsmr, &ug_regs->uescr);
2570
2571         /* Allocate Tx bds */
2572         for (j = 0; j < ug_info->numQueuesTx; j++) {
2573                 /* Allocate in multiple of
2574                    UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT,
2575                    according to spec */
2576                 length = ((ug_info->bdRingLenTx[j] * sizeof(struct qe_bd))
2577                           / UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT)
2578                     * UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
2579                 if ((ug_info->bdRingLenTx[j] * sizeof(struct qe_bd)) %
2580                     UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT)
2581                         length += UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
2582                 if (uf_info->bd_mem_part == MEM_PART_SYSTEM) {
2583                         u32 align = 4;
2584                         if (UCC_GETH_TX_BD_RING_ALIGNMENT > 4)
2585                                 align = UCC_GETH_TX_BD_RING_ALIGNMENT;
2586                         ugeth->tx_bd_ring_offset[j] =
2587                                 kmalloc((u32) (length + align), GFP_KERNEL);
2588
2589                         if (ugeth->tx_bd_ring_offset[j] != 0)
2590                                 ugeth->p_tx_bd_ring[j] =
2591                                         (void*)((ugeth->tx_bd_ring_offset[j] +
2592                                         align) & ~(align - 1));
2593                 } else if (uf_info->bd_mem_part == MEM_PART_MURAM) {
2594                         ugeth->tx_bd_ring_offset[j] =
2595                             qe_muram_alloc(length,
2596                                            UCC_GETH_TX_BD_RING_ALIGNMENT);
2597                         if (!IS_MURAM_ERR(ugeth->tx_bd_ring_offset[j]))
2598                                 ugeth->p_tx_bd_ring[j] =
2599                                     (u8 *) qe_muram_addr(ugeth->
2600                                                          tx_bd_ring_offset[j]);
2601                 }
2602                 if (!ugeth->p_tx_bd_ring[j]) {
2603                         ugeth_err
2604                             ("%s: Can not allocate memory for Tx bd rings.",
2605                              __FUNCTION__);
2606                         ucc_geth_memclean(ugeth);
2607                         return -ENOMEM;
2608                 }
2609                 /* Zero unused end of bd ring, according to spec */
2610                 memset(ugeth->p_tx_bd_ring[j] +
2611                        ug_info->bdRingLenTx[j] * sizeof(struct qe_bd), 0,
2612                        length - ug_info->bdRingLenTx[j] * sizeof(struct qe_bd));
2613         }
2614
2615         /* Allocate Rx bds */
2616         for (j = 0; j < ug_info->numQueuesRx; j++) {
2617                 length = ug_info->bdRingLenRx[j] * sizeof(struct qe_bd);
2618                 if (uf_info->bd_mem_part == MEM_PART_SYSTEM) {
2619                         u32 align = 4;
2620                         if (UCC_GETH_RX_BD_RING_ALIGNMENT > 4)
2621                                 align = UCC_GETH_RX_BD_RING_ALIGNMENT;
2622                         ugeth->rx_bd_ring_offset[j] =
2623                                 kmalloc((u32) (length + align), GFP_KERNEL);
2624                         if (ugeth->rx_bd_ring_offset[j] != 0)
2625                                 ugeth->p_rx_bd_ring[j] =
2626                                         (void*)((ugeth->rx_bd_ring_offset[j] +
2627                                         align) & ~(align - 1));
2628                 } else if (uf_info->bd_mem_part == MEM_PART_MURAM) {
2629                         ugeth->rx_bd_ring_offset[j] =
2630                             qe_muram_alloc(length,
2631                                            UCC_GETH_RX_BD_RING_ALIGNMENT);
2632                         if (!IS_MURAM_ERR(ugeth->rx_bd_ring_offset[j]))
2633                                 ugeth->p_rx_bd_ring[j] =
2634                                     (u8 *) qe_muram_addr(ugeth->
2635                                                          rx_bd_ring_offset[j]);
2636                 }
2637                 if (!ugeth->p_rx_bd_ring[j]) {
2638                         ugeth_err
2639                             ("%s: Can not allocate memory for Rx bd rings.",
2640                              __FUNCTION__);
2641                         ucc_geth_memclean(ugeth);
2642                         return -ENOMEM;
2643                 }
2644         }
2645
2646         /* Init Tx bds */
2647         for (j = 0; j < ug_info->numQueuesTx; j++) {
2648                 /* Setup the skbuff rings */
2649                 ugeth->tx_skbuff[j] = kmalloc(sizeof(struct sk_buff *) *
2650                                               ugeth->ug_info->bdRingLenTx[j],
2651                                               GFP_KERNEL);
2652
2653                 if (ugeth->tx_skbuff[j] == NULL) {
2654                         ugeth_err("%s: Could not allocate tx_skbuff",
2655                                   __FUNCTION__);
2656                         ucc_geth_memclean(ugeth);
2657                         return -ENOMEM;
2658                 }
2659
2660                 for (i = 0; i < ugeth->ug_info->bdRingLenTx[j]; i++)
2661                         ugeth->tx_skbuff[j][i] = NULL;
2662
2663                 ugeth->skb_curtx[j] = ugeth->skb_dirtytx[j] = 0;
2664                 bd = ugeth->confBd[j] = ugeth->txBd[j] = ugeth->p_tx_bd_ring[j];
2665                 for (i = 0; i < ug_info->bdRingLenTx[j]; i++) {
2666                         /* clear bd buffer */
2667                         out_be32(&((struct qe_bd *)bd)->buf, 0);
2668                         /* set bd status and length */
2669                         out_be32((u32 *)bd, 0);
2670                         bd += sizeof(struct qe_bd);
2671                 }
2672                 bd -= sizeof(struct qe_bd);
2673                 /* set bd status and length */
2674                 out_be32((u32 *)bd, T_W);       /* for last BD set Wrap bit */
2675         }
2676
2677         /* Init Rx bds */
2678         for (j = 0; j < ug_info->numQueuesRx; j++) {
2679                 /* Setup the skbuff rings */
2680                 ugeth->rx_skbuff[j] = kmalloc(sizeof(struct sk_buff *) *
2681                                               ugeth->ug_info->bdRingLenRx[j],
2682                                               GFP_KERNEL);
2683
2684                 if (ugeth->rx_skbuff[j] == NULL) {
2685                         ugeth_err("%s: Could not allocate rx_skbuff",
2686                                   __FUNCTION__);
2687                         ucc_geth_memclean(ugeth);
2688                         return -ENOMEM;
2689                 }
2690
2691                 for (i = 0; i < ugeth->ug_info->bdRingLenRx[j]; i++)
2692                         ugeth->rx_skbuff[j][i] = NULL;
2693
2694                 ugeth->skb_currx[j] = 0;
2695                 bd = ugeth->rxBd[j] = ugeth->p_rx_bd_ring[j];
2696                 for (i = 0; i < ug_info->bdRingLenRx[j]; i++) {
2697                         /* set bd status and length */
2698                         out_be32((u32 *)bd, R_I);
2699                         /* clear bd buffer */
2700                         out_be32(&((struct qe_bd *)bd)->buf, 0);
2701                         bd += sizeof(struct qe_bd);
2702                 }
2703                 bd -= sizeof(struct qe_bd);
2704                 /* set bd status and length */
2705                 out_be32((u32 *)bd, R_W); /* for last BD set Wrap bit */
2706         }
2707
2708         /*
2709          * Global PRAM
2710          */
2711         /* Tx global PRAM */
2712         /* Allocate global tx parameter RAM page */
2713         ugeth->tx_glbl_pram_offset =
2714             qe_muram_alloc(sizeof(struct ucc_geth_tx_global_pram),
2715                            UCC_GETH_TX_GLOBAL_PRAM_ALIGNMENT);
2716         if (IS_MURAM_ERR(ugeth->tx_glbl_pram_offset)) {
2717                 ugeth_err
2718                     ("%s: Can not allocate DPRAM memory for p_tx_glbl_pram.",
2719                      __FUNCTION__);
2720                 ucc_geth_memclean(ugeth);
2721                 return -ENOMEM;
2722         }
2723         ugeth->p_tx_glbl_pram =
2724             (struct ucc_geth_tx_global_pram *) qe_muram_addr(ugeth->
2725                                                         tx_glbl_pram_offset);
2726         /* Zero out p_tx_glbl_pram */
2727         memset(ugeth->p_tx_glbl_pram, 0, sizeof(struct ucc_geth_tx_global_pram));
2728
2729         /* Fill global PRAM */
2730
2731         /* TQPTR */
2732         /* Size varies with number of Tx threads */
2733         ugeth->thread_dat_tx_offset =
2734             qe_muram_alloc(numThreadsTxNumerical *
2735                            sizeof(struct ucc_geth_thread_data_tx) +
2736                            32 * (numThreadsTxNumerical == 1),
2737                            UCC_GETH_THREAD_DATA_ALIGNMENT);
2738         if (IS_MURAM_ERR(ugeth->thread_dat_tx_offset)) {
2739                 ugeth_err
2740                     ("%s: Can not allocate DPRAM memory for p_thread_data_tx.",
2741                      __FUNCTION__);
2742                 ucc_geth_memclean(ugeth);
2743                 return -ENOMEM;
2744         }
2745
2746         ugeth->p_thread_data_tx =
2747             (struct ucc_geth_thread_data_tx *) qe_muram_addr(ugeth->
2748                                                         thread_dat_tx_offset);
2749         out_be32(&ugeth->p_tx_glbl_pram->tqptr, ugeth->thread_dat_tx_offset);
2750
2751         /* vtagtable */
2752         for (i = 0; i < UCC_GETH_TX_VTAG_TABLE_ENTRY_MAX; i++)
2753                 out_be32(&ugeth->p_tx_glbl_pram->vtagtable[i],
2754                          ug_info->vtagtable[i]);
2755
2756         /* iphoffset */
2757         for (i = 0; i < TX_IP_OFFSET_ENTRY_MAX; i++)
2758                 ugeth->p_tx_glbl_pram->iphoffset[i] = ug_info->iphoffset[i];
2759
2760         /* SQPTR */
2761         /* Size varies with number of Tx queues */
2762         ugeth->send_q_mem_reg_offset =
2763             qe_muram_alloc(ug_info->numQueuesTx *
2764                            sizeof(struct ucc_geth_send_queue_qd),
2765                            UCC_GETH_SEND_QUEUE_QUEUE_DESCRIPTOR_ALIGNMENT);
2766         if (IS_MURAM_ERR(ugeth->send_q_mem_reg_offset)) {
2767                 ugeth_err
2768                     ("%s: Can not allocate DPRAM memory for p_send_q_mem_reg.",
2769                      __FUNCTION__);
2770                 ucc_geth_memclean(ugeth);
2771                 return -ENOMEM;
2772         }
2773
2774         ugeth->p_send_q_mem_reg =
2775             (struct ucc_geth_send_queue_mem_region *) qe_muram_addr(ugeth->
2776                         send_q_mem_reg_offset);
2777         out_be32(&ugeth->p_tx_glbl_pram->sqptr, ugeth->send_q_mem_reg_offset);
2778
2779         /* Setup the table */
2780         /* Assume BD rings are already established */
2781         for (i = 0; i < ug_info->numQueuesTx; i++) {
2782                 endOfRing =
2783                     ugeth->p_tx_bd_ring[i] + (ug_info->bdRingLenTx[i] -
2784                                               1) * sizeof(struct qe_bd);
2785                 if (ugeth->ug_info->uf_info.bd_mem_part == MEM_PART_SYSTEM) {
2786                         out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].bd_ring_base,
2787                                  (u32) virt_to_phys(ugeth->p_tx_bd_ring[i]));
2788                         out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].
2789                                  last_bd_completed_address,
2790                                  (u32) virt_to_phys(endOfRing));
2791                 } else if (ugeth->ug_info->uf_info.bd_mem_part ==
2792                            MEM_PART_MURAM) {
2793                         out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].bd_ring_base,
2794                                  (u32) immrbar_virt_to_phys(ugeth->
2795                                                             p_tx_bd_ring[i]));
2796                         out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].
2797                                  last_bd_completed_address,
2798                                  (u32) immrbar_virt_to_phys(endOfRing));
2799                 }
2800         }
2801
2802         /* schedulerbasepointer */
2803
2804         if (ug_info->numQueuesTx > 1) {
2805         /* scheduler exists only if more than 1 tx queue */
2806                 ugeth->scheduler_offset =
2807                     qe_muram_alloc(sizeof(struct ucc_geth_scheduler),
2808                                    UCC_GETH_SCHEDULER_ALIGNMENT);
2809                 if (IS_MURAM_ERR(ugeth->scheduler_offset)) {
2810                         ugeth_err
2811                          ("%s: Can not allocate DPRAM memory for p_scheduler.",
2812                              __FUNCTION__);
2813                         ucc_geth_memclean(ugeth);
2814                         return -ENOMEM;
2815                 }
2816
2817                 ugeth->p_scheduler =
2818                     (struct ucc_geth_scheduler *) qe_muram_addr(ugeth->
2819                                                            scheduler_offset);
2820                 out_be32(&ugeth->p_tx_glbl_pram->schedulerbasepointer,
2821                          ugeth->scheduler_offset);
2822                 /* Zero out p_scheduler */
2823                 memset(ugeth->p_scheduler, 0, sizeof(struct ucc_geth_scheduler));
2824
2825                 /* Set values in scheduler */
2826                 out_be32(&ugeth->p_scheduler->mblinterval,
2827                          ug_info->mblinterval);
2828                 out_be16(&ugeth->p_scheduler->nortsrbytetime,
2829                          ug_info->nortsrbytetime);
2830                 ugeth->p_scheduler->fracsiz = ug_info->fracsiz;
2831                 ugeth->p_scheduler->strictpriorityq = ug_info->strictpriorityq;
2832                 ugeth->p_scheduler->txasap = ug_info->txasap;
2833                 ugeth->p_scheduler->extrabw = ug_info->extrabw;
2834                 for (i = 0; i < NUM_TX_QUEUES; i++)
2835                         ugeth->p_scheduler->weightfactor[i] =
2836                             ug_info->weightfactor[i];
2837
2838                 /* Set pointers to cpucount registers in scheduler */
2839                 ugeth->p_cpucount[0] = &(ugeth->p_scheduler->cpucount0);
2840                 ugeth->p_cpucount[1] = &(ugeth->p_scheduler->cpucount1);
2841                 ugeth->p_cpucount[2] = &(ugeth->p_scheduler->cpucount2);
2842                 ugeth->p_cpucount[3] = &(ugeth->p_scheduler->cpucount3);
2843                 ugeth->p_cpucount[4] = &(ugeth->p_scheduler->cpucount4);
2844                 ugeth->p_cpucount[5] = &(ugeth->p_scheduler->cpucount5);
2845                 ugeth->p_cpucount[6] = &(ugeth->p_scheduler->cpucount6);
2846                 ugeth->p_cpucount[7] = &(ugeth->p_scheduler->cpucount7);
2847         }
2848
2849         /* schedulerbasepointer */
2850         /* TxRMON_PTR (statistics) */
2851         if (ug_info->
2852             statisticsMode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) {
2853                 ugeth->tx_fw_statistics_pram_offset =
2854                     qe_muram_alloc(sizeof
2855                                    (struct ucc_geth_tx_firmware_statistics_pram),
2856                                    UCC_GETH_TX_STATISTICS_ALIGNMENT);
2857                 if (IS_MURAM_ERR(ugeth->tx_fw_statistics_pram_offset)) {
2858                         ugeth_err
2859                             ("%s: Can not allocate DPRAM memory for"
2860                                 " p_tx_fw_statistics_pram.", __FUNCTION__);
2861                         ucc_geth_memclean(ugeth);
2862                         return -ENOMEM;
2863                 }
2864                 ugeth->p_tx_fw_statistics_pram =
2865                     (struct ucc_geth_tx_firmware_statistics_pram *)
2866                     qe_muram_addr(ugeth->tx_fw_statistics_pram_offset);
2867                 /* Zero out p_tx_fw_statistics_pram */
2868                 memset(ugeth->p_tx_fw_statistics_pram,
2869                        0, sizeof(struct ucc_geth_tx_firmware_statistics_pram));
2870         }
2871
2872         /* temoder */
2873         /* Already has speed set */
2874
2875         if (ug_info->numQueuesTx > 1)
2876                 temoder |= TEMODER_SCHEDULER_ENABLE;
2877         if (ug_info->ipCheckSumGenerate)
2878                 temoder |= TEMODER_IP_CHECKSUM_GENERATE;
2879         temoder |= ((ug_info->numQueuesTx - 1) << TEMODER_NUM_OF_QUEUES_SHIFT);
2880         out_be16(&ugeth->p_tx_glbl_pram->temoder, temoder);
2881
2882         test = in_be16(&ugeth->p_tx_glbl_pram->temoder);
2883
2884         /* Function code register value to be used later */
2885         function_code = QE_BMR_BYTE_ORDER_BO_MOT | UCC_FAST_FUNCTION_CODE_GBL;
2886         /* Required for QE */
2887
2888         /* function code register */
2889         out_be32(&ugeth->p_tx_glbl_pram->tstate, ((u32) function_code) << 24);
2890
2891         /* Rx global PRAM */
2892         /* Allocate global rx parameter RAM page */
2893         ugeth->rx_glbl_pram_offset =
2894             qe_muram_alloc(sizeof(struct ucc_geth_rx_global_pram),
2895                            UCC_GETH_RX_GLOBAL_PRAM_ALIGNMENT);
2896         if (IS_MURAM_ERR(ugeth->rx_glbl_pram_offset)) {
2897                 ugeth_err
2898                     ("%s: Can not allocate DPRAM memory for p_rx_glbl_pram.",
2899                      __FUNCTION__);
2900                 ucc_geth_memclean(ugeth);
2901                 return -ENOMEM;
2902         }
2903         ugeth->p_rx_glbl_pram =
2904             (struct ucc_geth_rx_global_pram *) qe_muram_addr(ugeth->
2905                                                         rx_glbl_pram_offset);
2906         /* Zero out p_rx_glbl_pram */
2907         memset(ugeth->p_rx_glbl_pram, 0, sizeof(struct ucc_geth_rx_global_pram));
2908
2909         /* Fill global PRAM */
2910
2911         /* RQPTR */
2912         /* Size varies with number of Rx threads */
2913         ugeth->thread_dat_rx_offset =
2914             qe_muram_alloc(numThreadsRxNumerical *
2915                            sizeof(struct ucc_geth_thread_data_rx),
2916                            UCC_GETH_THREAD_DATA_ALIGNMENT);
2917         if (IS_MURAM_ERR(ugeth->thread_dat_rx_offset)) {
2918                 ugeth_err
2919                     ("%s: Can not allocate DPRAM memory for p_thread_data_rx.",
2920                      __FUNCTION__);
2921                 ucc_geth_memclean(ugeth);
2922                 return -ENOMEM;
2923         }
2924
2925         ugeth->p_thread_data_rx =
2926             (struct ucc_geth_thread_data_rx *) qe_muram_addr(ugeth->
2927                                                         thread_dat_rx_offset);
2928         out_be32(&ugeth->p_rx_glbl_pram->rqptr, ugeth->thread_dat_rx_offset);
2929
2930         /* typeorlen */
2931         out_be16(&ugeth->p_rx_glbl_pram->typeorlen, ug_info->typeorlen);
2932
2933         /* rxrmonbaseptr (statistics) */
2934         if (ug_info->
2935             statisticsMode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX) {
2936                 ugeth->rx_fw_statistics_pram_offset =
2937                     qe_muram_alloc(sizeof
2938                                    (struct ucc_geth_rx_firmware_statistics_pram),
2939                                    UCC_GETH_RX_STATISTICS_ALIGNMENT);
2940                 if (IS_MURAM_ERR(ugeth->rx_fw_statistics_pram_offset)) {
2941                         ugeth_err
2942                                 ("%s: Can not allocate DPRAM memory for"
2943                                 " p_rx_fw_statistics_pram.", __FUNCTION__);
2944                         ucc_geth_memclean(ugeth);
2945                         return -ENOMEM;
2946                 }
2947                 ugeth->p_rx_fw_statistics_pram =
2948                     (struct ucc_geth_rx_firmware_statistics_pram *)
2949                     qe_muram_addr(ugeth->rx_fw_statistics_pram_offset);
2950                 /* Zero out p_rx_fw_statistics_pram */
2951                 memset(ugeth->p_rx_fw_statistics_pram, 0,
2952                        sizeof(struct ucc_geth_rx_firmware_statistics_pram));
2953         }
2954
2955         /* intCoalescingPtr */
2956
2957         /* Size varies with number of Rx queues */
2958         ugeth->rx_irq_coalescing_tbl_offset =
2959             qe_muram_alloc(ug_info->numQueuesRx *
2960                            sizeof(struct ucc_geth_rx_interrupt_coalescing_entry)
2961                            + 4, UCC_GETH_RX_INTERRUPT_COALESCING_ALIGNMENT);
2962         if (IS_MURAM_ERR(ugeth->rx_irq_coalescing_tbl_offset)) {
2963                 ugeth_err
2964                     ("%s: Can not allocate DPRAM memory for"
2965                         " p_rx_irq_coalescing_tbl.", __FUNCTION__);
2966                 ucc_geth_memclean(ugeth);
2967                 return -ENOMEM;
2968         }
2969
2970         ugeth->p_rx_irq_coalescing_tbl =
2971             (struct ucc_geth_rx_interrupt_coalescing_table *)
2972             qe_muram_addr(ugeth->rx_irq_coalescing_tbl_offset);
2973         out_be32(&ugeth->p_rx_glbl_pram->intcoalescingptr,
2974                  ugeth->rx_irq_coalescing_tbl_offset);
2975
2976         /* Fill interrupt coalescing table */
2977         for (i = 0; i < ug_info->numQueuesRx; i++) {
2978                 out_be32(&ugeth->p_rx_irq_coalescing_tbl->coalescingentry[i].
2979                          interruptcoalescingmaxvalue,
2980                          ug_info->interruptcoalescingmaxvalue[i]);
2981                 out_be32(&ugeth->p_rx_irq_coalescing_tbl->coalescingentry[i].
2982                          interruptcoalescingcounter,
2983                          ug_info->interruptcoalescingmaxvalue[i]);
2984         }
2985
2986         /* MRBLR */
2987         init_max_rx_buff_len(uf_info->max_rx_buf_length,
2988                              &ugeth->p_rx_glbl_pram->mrblr);
2989         /* MFLR */
2990         out_be16(&ugeth->p_rx_glbl_pram->mflr, ug_info->maxFrameLength);
2991         /* MINFLR */
2992         init_min_frame_len(ug_info->minFrameLength,
2993                            &ugeth->p_rx_glbl_pram->minflr,
2994                            &ugeth->p_rx_glbl_pram->mrblr);
2995         /* MAXD1 */
2996         out_be16(&ugeth->p_rx_glbl_pram->maxd1, ug_info->maxD1Length);
2997         /* MAXD2 */
2998         out_be16(&ugeth->p_rx_glbl_pram->maxd2, ug_info->maxD2Length);
2999
3000         /* l2qt */
3001         l2qt = 0;
3002         for (i = 0; i < UCC_GETH_VLAN_PRIORITY_MAX; i++)
3003                 l2qt |= (ug_info->l2qt[i] << (28 - 4 * i));
3004         out_be32(&ugeth->p_rx_glbl_pram->l2qt, l2qt);
3005
3006         /* l3qt */
3007         for (j = 0; j < UCC_GETH_IP_PRIORITY_MAX; j += 8) {
3008                 l3qt = 0;
3009                 for (i = 0; i < 8; i++)
3010                         l3qt |= (ug_info->l3qt[j + i] << (28 - 4 * i));
3011                 out_be32(&ugeth->p_rx_glbl_pram->l3qt[j/8], l3qt);
3012         }
3013
3014         /* vlantype */
3015         out_be16(&ugeth->p_rx_glbl_pram->vlantype, ug_info->vlantype);
3016
3017         /* vlantci */
3018         out_be16(&ugeth->p_rx_glbl_pram->vlantci, ug_info->vlantci);
3019
3020         /* ecamptr */
3021         out_be32(&ugeth->p_rx_glbl_pram->ecamptr, ug_info->ecamptr);
3022
3023         /* RBDQPTR */
3024         /* Size varies with number of Rx queues */
3025         ugeth->rx_bd_qs_tbl_offset =
3026             qe_muram_alloc(ug_info->numQueuesRx *
3027                            (sizeof(struct ucc_geth_rx_bd_queues_entry) +
3028                             sizeof(struct ucc_geth_rx_prefetched_bds)),
3029                            UCC_GETH_RX_BD_QUEUES_ALIGNMENT);
3030         if (IS_MURAM_ERR(ugeth->rx_bd_qs_tbl_offset)) {
3031                 ugeth_err
3032                     ("%s: Can not allocate DPRAM memory for p_rx_bd_qs_tbl.",
3033                      __FUNCTION__);
3034                 ucc_geth_memclean(ugeth);
3035                 return -ENOMEM;
3036         }
3037
3038         ugeth->p_rx_bd_qs_tbl =
3039             (struct ucc_geth_rx_bd_queues_entry *) qe_muram_addr(ugeth->
3040                                     rx_bd_qs_tbl_offset);
3041         out_be32(&ugeth->p_rx_glbl_pram->rbdqptr, ugeth->rx_bd_qs_tbl_offset);
3042         /* Zero out p_rx_bd_qs_tbl */
3043         memset(ugeth->p_rx_bd_qs_tbl,
3044                0,
3045                ug_info->numQueuesRx * (sizeof(struct ucc_geth_rx_bd_queues_entry) +
3046                                        sizeof(struct ucc_geth_rx_prefetched_bds)));
3047
3048         /* Setup the table */
3049         /* Assume BD rings are already established */
3050         for (i = 0; i < ug_info->numQueuesRx; i++) {
3051                 if (ugeth->ug_info->uf_info.bd_mem_part == MEM_PART_SYSTEM) {
3052                         out_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
3053                                  (u32) virt_to_phys(ugeth->p_rx_bd_ring[i]));
3054                 } else if (ugeth->ug_info->uf_info.bd_mem_part ==
3055                            MEM_PART_MURAM) {
3056                         out_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
3057                                  (u32) immrbar_virt_to_phys(ugeth->
3058                                                             p_rx_bd_ring[i]));
3059                 }
3060                 /* rest of fields handled by QE */
3061         }
3062
3063         /* remoder */
3064         /* Already has speed set */
3065
3066         if (ugeth->rx_extended_features)
3067                 remoder |= REMODER_RX_EXTENDED_FEATURES;
3068         if (ug_info->rxExtendedFiltering)
3069                 remoder |= REMODER_RX_EXTENDED_FILTERING;
3070         if (ug_info->dynamicMaxFrameLength)
3071                 remoder |= REMODER_DYNAMIC_MAX_FRAME_LENGTH;
3072         if (ug_info->dynamicMinFrameLength)
3073                 remoder |= REMODER_DYNAMIC_MIN_FRAME_LENGTH;
3074         remoder |=
3075             ug_info->vlanOperationTagged << REMODER_VLAN_OPERATION_TAGGED_SHIFT;
3076         remoder |=
3077             ug_info->
3078             vlanOperationNonTagged << REMODER_VLAN_OPERATION_NON_TAGGED_SHIFT;
3079         remoder |= ug_info->rxQoSMode << REMODER_RX_QOS_MODE_SHIFT;
3080         remoder |= ((ug_info->numQueuesRx - 1) << REMODER_NUM_OF_QUEUES_SHIFT);
3081         if (ug_info->ipCheckSumCheck)
3082                 remoder |= REMODER_IP_CHECKSUM_CHECK;
3083         if (ug_info->ipAddressAlignment)
3084                 remoder |= REMODER_IP_ADDRESS_ALIGNMENT;
3085         out_be32(&ugeth->p_rx_glbl_pram->remoder, remoder);
3086
3087         /* Note that this function must be called */
3088         /* ONLY AFTER p_tx_fw_statistics_pram */
3089         /* andp_UccGethRxFirmwareStatisticsPram are allocated ! */
3090         init_firmware_statistics_gathering_mode((ug_info->
3091                 statisticsMode &
3092                 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX),
3093                 (ug_info->statisticsMode &
3094                 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX),
3095                 &ugeth->p_tx_glbl_pram->txrmonbaseptr,
3096                 ugeth->tx_fw_statistics_pram_offset,
3097                 &ugeth->p_rx_glbl_pram->rxrmonbaseptr,
3098                 ugeth->rx_fw_statistics_pram_offset,
3099                 &ugeth->p_tx_glbl_pram->temoder,
3100                 &ugeth->p_rx_glbl_pram->remoder);
3101
3102         /* function code register */
3103         ugeth->p_rx_glbl_pram->rstate = function_code;
3104
3105         /* initialize extended filtering */
3106         if (ug_info->rxExtendedFiltering) {
3107                 if (!ug_info->extendedFilteringChainPointer) {
3108                         ugeth_err("%s: Null Extended Filtering Chain Pointer.",
3109                                   __FUNCTION__);
3110                         ucc_geth_memclean(ugeth);
3111                         return -EINVAL;
3112                 }
3113
3114                 /* Allocate memory for extended filtering Mode Global
3115                 Parameters */
3116                 ugeth->exf_glbl_param_offset =
3117                     qe_muram_alloc(sizeof(struct ucc_geth_exf_global_pram),
3118                 UCC_GETH_RX_EXTENDED_FILTERING_GLOBAL_PARAMETERS_ALIGNMENT);
3119                 if (IS_MURAM_ERR(ugeth->exf_glbl_param_offset)) {
3120                         ugeth_err
3121                                 ("%s: Can not allocate DPRAM memory for"
3122                                 " p_exf_glbl_param.", __FUNCTION__);
3123                         ucc_geth_memclean(ugeth);
3124                         return -ENOMEM;
3125                 }
3126
3127                 ugeth->p_exf_glbl_param =
3128                     (struct ucc_geth_exf_global_pram *) qe_muram_addr(ugeth->
3129                                  exf_glbl_param_offset);
3130                 out_be32(&ugeth->p_rx_glbl_pram->exfGlobalParam,
3131                          ugeth->exf_glbl_param_offset);
3132                 out_be32(&ugeth->p_exf_glbl_param->l2pcdptr,
3133                          (u32) ug_info->extendedFilteringChainPointer);
3134
3135         } else {                /* initialize 82xx style address filtering */
3136
3137                 /* Init individual address recognition registers to disabled */
3138
3139                 for (j = 0; j < NUM_OF_PADDRS; j++)
3140                         ugeth_82xx_filtering_clear_addr_in_paddr(ugeth, (u8) j);
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 = of_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 = of_get_property(np, "rx-clock", NULL);
3799         ug_info->uf_info.rx_clock = *prop;
3800         prop = of_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 = of_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 = of_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 = of_get_property(np, "interface-type", NULL);
3823         if (!prop) {
3824                 /* handle interface property present in old trees */
3825                 prop = of_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 = of_get_property(np, "max-speed", NULL);
3836         if (!prop) {
3837                 /* handle interface property present in old trees */
3838                 prop = of_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_VERSION(DRV_VERSION);
4011 MODULE_LICENSE("GPL");