drivers/net/ucc_geth.c

   1 /*
   2  * Copyright (C) 2006-2009 Freescale Semicondutor, Inc. All rights reserved.
   3  *
   4  * Author: Shlomi Gridish <gridish@freescale.com>
   5  *         Li Yang <leoli@freescale.com>
   6  *
   7  * Description:
   8  * QE UCC Gigabit Ethernet Driver
   9  *
  10  * This program is free software; you can redistribute  it and/or modify it
  11  * under  the terms of  the GNU General  Public License as published by the
  12  * Free Software Foundation;  either version 2 of the  License, or (at your
  13  * option) any later version.
  14  */
  15 #include <linux/kernel.h>
  16 #include <linux/init.h>
  17 #include <linux/errno.h>
  18 #include <linux/slab.h>
  19 #include <linux/stddef.h>
  20 #include <linux/interrupt.h>
  21 #include <linux/netdevice.h>
  22 #include <linux/etherdevice.h>
  23 #include <linux/skbuff.h>
  24 #include <linux/spinlock.h>
  25 #include <linux/mm.h>
  26 #include <linux/dma-mapping.h>
  27 #include <linux/mii.h>
  28 #include <linux/phy.h>
  29 #include <linux/workqueue.h>
  30 #include <linux/of_mdio.h>
  31 #include <linux/of_platform.h>
  32
  33 #include <asm/uaccess.h>
  34 #include <asm/irq.h>
  35 #include <asm/io.h>
  36 #include <asm/immap_qe.h>
  37 #include <asm/qe.h>
  38 #include <asm/ucc.h>
  39 #include <asm/ucc_fast.h>
  40
  41 #include "ucc_geth.h"
  42 #include "fsl_pq_mdio.h"
  43
  44 #undef DEBUG
  45
  46 #define ugeth_printk(level, format, arg...)  \
  47         printk(level format "\n", ## arg)
  48
  49 #define ugeth_dbg(format, arg...)            \
  50         ugeth_printk(KERN_DEBUG , format , ## arg)
  51 #define ugeth_err(format, arg...)            \
  52         ugeth_printk(KERN_ERR , format , ## arg)
  53 #define ugeth_info(format, arg...)           \
  54         ugeth_printk(KERN_INFO , format , ## arg)
  55 #define ugeth_warn(format, arg...)           \
  56         ugeth_printk(KERN_WARNING , format , ## arg)
  57
  58 #ifdef UGETH_VERBOSE_DEBUG
  59 #define ugeth_vdbg ugeth_dbg
  60 #else
  61 #define ugeth_vdbg(fmt, args...) do { } while (0)
  62 #endif                          /* UGETH_VERBOSE_DEBUG */
  63 #define UGETH_MSG_DEFAULT       (NETIF_MSG_IFUP << 1 ) - 1
  64
  65
  66 static DEFINE_SPINLOCK(ugeth_lock);
  67
  68 static struct {
  69         u32 msg_enable;
  70 } debug = { -1 };
  71
  72 module_param_named(debug, debug.msg_enable, int, 0);
  73 MODULE_PARM_DESC(debug, "Debug verbosity level (0=none, ..., 0xffff=all)");
  74
  75 static struct ucc_geth_info ugeth_primary_info = {
  76         .uf_info = {
  77                     .bd_mem_part = MEM_PART_SYSTEM,
  78                     .rtsm = UCC_FAST_SEND_IDLES_BETWEEN_FRAMES,
  79                     .max_rx_buf_length = 1536,
  80                     /* adjusted at startup if max-speed 1000 */
  81                     .urfs = UCC_GETH_URFS_INIT,
  82                     .urfet = UCC_GETH_URFET_INIT,
  83                     .urfset = UCC_GETH_URFSET_INIT,
  84                     .utfs = UCC_GETH_UTFS_INIT,
  85                     .utfet = UCC_GETH_UTFET_INIT,
  86                     .utftt = UCC_GETH_UTFTT_INIT,
  87                     .ufpt = 256,
  88                     .mode = UCC_FAST_PROTOCOL_MODE_ETHERNET,
  89                     .ttx_trx = UCC_FAST_GUMR_TRANSPARENT_TTX_TRX_NORMAL,
  90                     .tenc = UCC_FAST_TX_ENCODING_NRZ,
  91                     .renc = UCC_FAST_RX_ENCODING_NRZ,
  92                     .tcrc = UCC_FAST_16_BIT_CRC,
  93                     .synl = UCC_FAST_SYNC_LEN_NOT_USED,
  94                     },
  95         .numQueuesTx = 1,
  96         .numQueuesRx = 1,
  97         .extendedFilteringChainPointer = ((uint32_t) NULL),
  98         .typeorlen = 3072 /*1536 */ ,
  99         .nonBackToBackIfgPart1 = 0x40,
 100         .nonBackToBackIfgPart2 = 0x60,
 101         .miminumInterFrameGapEnforcement = 0x50,
 102         .backToBackInterFrameGap = 0x60,
 103         .mblinterval = 128,
 104         .nortsrbytetime = 5,
 105         .fracsiz = 1,
 106         .strictpriorityq = 0xff,
 107         .altBebTruncation = 0xa,
 108         .excessDefer = 1,
 109         .maxRetransmission = 0xf,
 110         .collisionWindow = 0x37,
 111         .receiveFlowControl = 1,
 112         .transmitFlowControl = 1,
 113         .maxGroupAddrInHash = 4,
 114         .maxIndAddrInHash = 4,
 115         .prel = 7,
 116         .maxFrameLength = 1518,
 117         .minFrameLength = 64,
 118         .maxD1Length = 1520,
 119         .maxD2Length = 1520,
 120         .vlantype = 0x8100,
 121         .ecamptr = ((uint32_t) NULL),
 122         .eventRegMask = UCCE_OTHER,
 123         .pausePeriod = 0xf000,
 124         .interruptcoalescingmaxvalue = {1, 1, 1, 1, 1, 1, 1, 1},
 125         .bdRingLenTx = {
 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                         TX_BD_RING_LEN,
 132                         TX_BD_RING_LEN,
 133                         TX_BD_RING_LEN},
 134
 135         .bdRingLenRx = {
 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                         RX_BD_RING_LEN,
 142                         RX_BD_RING_LEN,
 143                         RX_BD_RING_LEN},
 144
 145         .numStationAddresses = UCC_GETH_NUM_OF_STATION_ADDRESSES_1,
 146         .largestexternallookupkeysize =
 147             QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_NONE,
 148         .statisticsMode = UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE |
 149                 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX |
 150                 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX,
 151         .vlanOperationTagged = UCC_GETH_VLAN_OPERATION_TAGGED_NOP,
 152         .vlanOperationNonTagged = UCC_GETH_VLAN_OPERATION_NON_TAGGED_NOP,
 153         .rxQoSMode = UCC_GETH_QOS_MODE_DEFAULT,
 154         .aufc = UPSMR_AUTOMATIC_FLOW_CONTROL_MODE_NONE,
 155         .padAndCrc = MACCFG2_PAD_AND_CRC_MODE_PAD_AND_CRC,
 156         .numThreadsTx = UCC_GETH_NUM_OF_THREADS_1,
 157         .numThreadsRx = UCC_GETH_NUM_OF_THREADS_1,
 158         .riscTx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
 159         .riscRx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
 160 };
 161
 162 static struct ucc_geth_info ugeth_info[8];
 163
 164 #ifdef DEBUG
 165 static void mem_disp(u8 *addr, int size)
 166 {
 167         u8 *i;
 168         int size16Aling = (size >> 4) << 4;
 169         int size4Aling = (size >> 2) << 2;
 170         int notAlign = 0;
 171         if (size % 16)
 172                 notAlign = 1;
 173
 174         for (i = addr; (u32) i < (u32) addr + size16Aling; i += 16)
 175                 printk("0x%08x: %08x %08x %08x %08x\r\n",
 176                        (u32) i,
 177                        *((u32 *) (i)),
 178                        *((u32 *) (i + 4)),
 179                        *((u32 *) (i + 8)), *((u32 *) (i + 12)));
 180         if (notAlign == 1)
 181                 printk("0x%08x: ", (u32) i);
 182         for (; (u32) i < (u32) addr + size4Aling; i += 4)
 183                 printk("%08x ", *((u32 *) (i)));
 184         for (; (u32) i < (u32) addr + size; i++)
 185                 printk("%02x", *((u8 *) (i)));
 186         if (notAlign == 1)
 187                 printk("\r\n");
 188 }
 189 #endif /* DEBUG */
 190
 191 static struct list_head *dequeue(struct list_head *lh)
 192 {
 193         unsigned long flags;
 194
 195         spin_lock_irqsave(&ugeth_lock, flags);
 196         if (!list_empty(lh)) {
 197                 struct list_head *node = lh->next;
 198                 list_del(node);
 199                 spin_unlock_irqrestore(&ugeth_lock, flags);
 200                 return node;
 201         } else {
 202                 spin_unlock_irqrestore(&ugeth_lock, flags);
 203                 return NULL;
 204         }
 205 }
 206
 207 static struct sk_buff *get_new_skb(struct ucc_geth_private *ugeth,
 208                 u8 __iomem *bd)
 209 {
 210         struct sk_buff *skb = NULL;
 211
 212         skb = __skb_dequeue(&ugeth->rx_recycle);
 213         if (!skb)
 214                 skb = dev_alloc_skb(ugeth->ug_info->uf_info.max_rx_buf_length +
 215                                     UCC_GETH_RX_DATA_BUF_ALIGNMENT);
 216         if (skb == NULL)
 217                 return NULL;
 218
 219         /* We need the data buffer to be aligned properly.  We will reserve
 220          * as many bytes as needed to align the data properly
 221          */
 222         skb_reserve(skb,
 223                     UCC_GETH_RX_DATA_BUF_ALIGNMENT -
 224                     (((unsigned)skb->data) & (UCC_GETH_RX_DATA_BUF_ALIGNMENT -
 225                                               1)));
 226
 227         skb->dev = ugeth->ndev;
 228
 229         out_be32(&((struct qe_bd __iomem *)bd)->buf,
 230                       dma_map_single(ugeth->dev,
 231                                      skb->data,
 232                                      ugeth->ug_info->uf_info.max_rx_buf_length +
 233                                      UCC_GETH_RX_DATA_BUF_ALIGNMENT,
 234                                      DMA_FROM_DEVICE));
 235
 236         out_be32((u32 __iomem *)bd,
 237                         (R_E | R_I | (in_be32((u32 __iomem*)bd) & R_W)));
 238
 239         return skb;
 240 }
 241
 242 static int rx_bd_buffer_set(struct ucc_geth_private *ugeth, u8 rxQ)
 243 {
 244         u8 __iomem *bd;
 245         u32 bd_status;
 246         struct sk_buff *skb;
 247         int i;
 248
 249         bd = ugeth->p_rx_bd_ring[rxQ];
 250         i = 0;
 251
 252         do {
 253                 bd_status = in_be32((u32 __iomem *)bd);
 254                 skb = get_new_skb(ugeth, bd);
 255
 256                 if (!skb)       /* If can not allocate data buffer,
 257                                 abort. Cleanup will be elsewhere */
 258                         return -ENOMEM;
 259
 260                 ugeth->rx_skbuff[rxQ][i] = skb;
 261
 262                 /* advance the BD pointer */
 263                 bd += sizeof(struct qe_bd);
 264                 i++;
 265         } while (!(bd_status & R_W));
 266
 267         return 0;
 268 }
 269
 270 static int fill_init_enet_entries(struct ucc_geth_private *ugeth,
 271                                   u32 *p_start,
 272                                   u8 num_entries,
 273                                   u32 thread_size,
 274                                   u32 thread_alignment,
 275                                   unsigned int risc,
 276                                   int skip_page_for_first_entry)
 277 {
 278         u32 init_enet_offset;
 279         u8 i;
 280         int snum;
 281
 282         for (i = 0; i < num_entries; i++) {
 283                 if ((snum = qe_get_snum()) < 0) {
 284                         if (netif_msg_ifup(ugeth))
 285                                 ugeth_err("fill_init_enet_entries: Can not get SNUM.");
 286                         return snum;
 287                 }
 288                 if ((i == 0) && skip_page_for_first_entry)
 289                 /* First entry of Rx does not have page */
 290                         init_enet_offset = 0;
 291                 else {
 292                         init_enet_offset =
 293                             qe_muram_alloc(thread_size, thread_alignment);
 294                         if (IS_ERR_VALUE(init_enet_offset)) {
 295                                 if (netif_msg_ifup(ugeth))
 296                                         ugeth_err("fill_init_enet_entries: Can not allocate DPRAM memory.");
 297                                 qe_put_snum((u8) snum);
 298                                 return -ENOMEM;
 299                         }
 300                 }
 301                 *(p_start++) =
 302                     ((u8) snum << ENET_INIT_PARAM_SNUM_SHIFT) | init_enet_offset
 303                     | risc;
 304         }
 305
 306         return 0;
 307 }
 308
 309 static int return_init_enet_entries(struct ucc_geth_private *ugeth,
 310                                     u32 *p_start,
 311                                     u8 num_entries,
 312                                     unsigned int risc,
 313                                     int skip_page_for_first_entry)
 314 {
 315         u32 init_enet_offset;
 316         u8 i;
 317         int snum;
 318
 319         for (i = 0; i < num_entries; i++) {
 320                 u32 val = *p_start;
 321
 322                 /* Check that this entry was actually valid --
 323                 needed in case failed in allocations */
 324                 if ((val & ENET_INIT_PARAM_RISC_MASK) == risc) {
 325                         snum =
 326                             (u32) (val & 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                                     (val & ENET_INIT_PARAM_PTR_MASK);
 333                                 qe_muram_free(init_enet_offset);
 334                         }
 335                         *p_start++ = 0;
 336                 }
 337         }
 338
 339         return 0;
 340 }
 341
 342 #ifdef DEBUG
 343 static int dump_init_enet_entries(struct ucc_geth_private *ugeth,
 344                                   u32 __iomem *p_start,
 345                                   u8 num_entries,
 346                                   u32 thread_size,
 347                                   unsigned int risc,
 348                                   int skip_page_for_first_entry)
 349 {
 350         u32 init_enet_offset;
 351         u8 i;
 352         int snum;
 353
 354         for (i = 0; i < num_entries; i++) {
 355                 u32 val = in_be32(p_start);
 356
 357                 /* Check that this entry was actually valid --
 358                 needed in case failed in allocations */
 359                 if ((val & ENET_INIT_PARAM_RISC_MASK) == risc) {
 360                         snum =
 361                             (u32) (val & ENET_INIT_PARAM_SNUM_MASK) >>
 362                             ENET_INIT_PARAM_SNUM_SHIFT;
 363                         qe_put_snum((u8) snum);
 364                         if (!((i == 0) && skip_page_for_first_entry)) {
 365                         /* First entry of Rx does not have page */
 366                                 init_enet_offset =
 367                                     (in_be32(p_start) &
 368                                      ENET_INIT_PARAM_PTR_MASK);
 369                                 ugeth_info("Init enet entry %d:", i);
 370                                 ugeth_info("Base address: 0x%08x",
 371                                            (u32)
 372                                            qe_muram_addr(init_enet_offset));
 373                                 mem_disp(qe_muram_addr(init_enet_offset),
 374                                          thread_size);
 375                         }
 376                         p_start++;
 377                 }
 378         }
 379
 380         return 0;
 381 }
 382 #endif
 383
 384 static void put_enet_addr_container(struct enet_addr_container *enet_addr_cont)
 385 {
 386         kfree(enet_addr_cont);
 387 }
 388
 389 static void set_mac_addr(__be16 __iomem *reg, u8 *mac)
 390 {
 391         out_be16(&reg[0], ((u16)mac[5] << 8) | mac[4]);
 392         out_be16(&reg[1], ((u16)mac[3] << 8) | mac[2]);
 393         out_be16(&reg[2], ((u16)mac[1] << 8) | mac[0]);
 394 }
 395
 396 static int hw_clear_addr_in_paddr(struct ucc_geth_private *ugeth, u8 paddr_num)
 397 {
 398         struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
 399
 400         if (!(paddr_num < NUM_OF_PADDRS)) {
 401                 ugeth_warn("%s: Illagel paddr_num.", __func__);
 402                 return -EINVAL;
 403         }
 404
 405         p_82xx_addr_filt =
 406             (struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->p_rx_glbl_pram->
 407             addressfiltering;
 408
 409         /* Writing address ff.ff.ff.ff.ff.ff disables address
 410         recognition for this register */
 411         out_be16(&p_82xx_addr_filt->paddr[paddr_num].h, 0xffff);
 412         out_be16(&p_82xx_addr_filt->paddr[paddr_num].m, 0xffff);
 413         out_be16(&p_82xx_addr_filt->paddr[paddr_num].l, 0xffff);
 414
 415         return 0;
 416 }
 417
 418 static void hw_add_addr_in_hash(struct ucc_geth_private *ugeth,
 419                                 u8 *p_enet_addr)
 420 {
 421         struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
 422         u32 cecr_subblock;
 423
 424         p_82xx_addr_filt =
 425             (struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->p_rx_glbl_pram->
 426             addressfiltering;
 427
 428         cecr_subblock =
 429             ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
 430
 431         /* Ethernet frames are defined in Little Endian mode,
 432         therefor to insert */
 433         /* the address to the hash (Big Endian mode), we reverse the bytes.*/
 434
 435         set_mac_addr(&p_82xx_addr_filt->taddr.h, p_enet_addr);
 436
 437         qe_issue_cmd(QE_SET_GROUP_ADDRESS, cecr_subblock,
 438                      QE_CR_PROTOCOL_ETHERNET, 0);
 439 }
 440
 441 static inline int compare_addr(u8 **addr1, u8 **addr2)
 442 {
 443         return memcmp(addr1, addr2, ENET_NUM_OCTETS_PER_ADDRESS);
 444 }
 445
 446 #ifdef DEBUG
 447 static void get_statistics(struct ucc_geth_private *ugeth,
 448                            struct ucc_geth_tx_firmware_statistics *
 449                            tx_firmware_statistics,
 450                            struct ucc_geth_rx_firmware_statistics *
 451                            rx_firmware_statistics,
 452                            struct ucc_geth_hardware_statistics *hardware_statistics)
 453 {
 454         struct ucc_fast __iomem *uf_regs;
 455         struct ucc_geth __iomem *ug_regs;
 456         struct ucc_geth_tx_firmware_statistics_pram *p_tx_fw_statistics_pram;
 457         struct ucc_geth_rx_firmware_statistics_pram *p_rx_fw_statistics_pram;
 458
 459         ug_regs = ugeth->ug_regs;
 460         uf_regs = (struct ucc_fast __iomem *) ug_regs;
 461         p_tx_fw_statistics_pram = ugeth->p_tx_fw_statistics_pram;
 462         p_rx_fw_statistics_pram = ugeth->p_rx_fw_statistics_pram;
 463
 464         /* Tx firmware only if user handed pointer and driver actually
 465         gathers Tx firmware statistics */
 466         if (tx_firmware_statistics && p_tx_fw_statistics_pram) {
 467                 tx_firmware_statistics->sicoltx =
 468                     in_be32(&p_tx_fw_statistics_pram->sicoltx);
 469                 tx_firmware_statistics->mulcoltx =
 470                     in_be32(&p_tx_fw_statistics_pram->mulcoltx);
 471                 tx_firmware_statistics->latecoltxfr =
 472                     in_be32(&p_tx_fw_statistics_pram->latecoltxfr);
 473                 tx_firmware_statistics->frabortduecol =
 474                     in_be32(&p_tx_fw_statistics_pram->frabortduecol);
 475                 tx_firmware_statistics->frlostinmactxer =
 476                     in_be32(&p_tx_fw_statistics_pram->frlostinmactxer);
 477                 tx_firmware_statistics->carriersenseertx =
 478                     in_be32(&p_tx_fw_statistics_pram->carriersenseertx);
 479                 tx_firmware_statistics->frtxok =
 480                     in_be32(&p_tx_fw_statistics_pram->frtxok);
 481                 tx_firmware_statistics->txfrexcessivedefer =
 482                     in_be32(&p_tx_fw_statistics_pram->txfrexcessivedefer);
 483                 tx_firmware_statistics->txpkts256 =
 484                     in_be32(&p_tx_fw_statistics_pram->txpkts256);
 485                 tx_firmware_statistics->txpkts512 =
 486                     in_be32(&p_tx_fw_statistics_pram->txpkts512);
 487                 tx_firmware_statistics->txpkts1024 =
 488                     in_be32(&p_tx_fw_statistics_pram->txpkts1024);
 489                 tx_firmware_statistics->txpktsjumbo =
 490                     in_be32(&p_tx_fw_statistics_pram->txpktsjumbo);
 491         }
 492
 493         /* Rx firmware only if user handed pointer and driver actually
 494          * gathers Rx firmware statistics */
 495         if (rx_firmware_statistics && p_rx_fw_statistics_pram) {
 496                 int i;
 497                 rx_firmware_statistics->frrxfcser =
 498                     in_be32(&p_rx_fw_statistics_pram->frrxfcser);
 499                 rx_firmware_statistics->fraligner =
 500                     in_be32(&p_rx_fw_statistics_pram->fraligner);
 501                 rx_firmware_statistics->inrangelenrxer =
 502                     in_be32(&p_rx_fw_statistics_pram->inrangelenrxer);
 503                 rx_firmware_statistics->outrangelenrxer =
 504                     in_be32(&p_rx_fw_statistics_pram->outrangelenrxer);
 505                 rx_firmware_statistics->frtoolong =
 506                     in_be32(&p_rx_fw_statistics_pram->frtoolong);
 507                 rx_firmware_statistics->runt =
 508                     in_be32(&p_rx_fw_statistics_pram->runt);
 509                 rx_firmware_statistics->verylongevent =
 510                     in_be32(&p_rx_fw_statistics_pram->verylongevent);
 511                 rx_firmware_statistics->symbolerror =
 512                     in_be32(&p_rx_fw_statistics_pram->symbolerror);
 513                 rx_firmware_statistics->dropbsy =
 514                     in_be32(&p_rx_fw_statistics_pram->dropbsy);
 515                 for (i = 0; i < 0x8; i++)
 516                         rx_firmware_statistics->res0[i] =
 517                             p_rx_fw_statistics_pram->res0[i];
 518                 rx_firmware_statistics->mismatchdrop =
 519                     in_be32(&p_rx_fw_statistics_pram->mismatchdrop);
 520                 rx_firmware_statistics->underpkts =
 521                     in_be32(&p_rx_fw_statistics_pram->underpkts);
 522                 rx_firmware_statistics->pkts256 =
 523                     in_be32(&p_rx_fw_statistics_pram->pkts256);
 524                 rx_firmware_statistics->pkts512 =
 525                     in_be32(&p_rx_fw_statistics_pram->pkts512);
 526                 rx_firmware_statistics->pkts1024 =
 527                     in_be32(&p_rx_fw_statistics_pram->pkts1024);
 528                 rx_firmware_statistics->pktsjumbo =
 529                     in_be32(&p_rx_fw_statistics_pram->pktsjumbo);
 530                 rx_firmware_statistics->frlossinmacer =
 531                     in_be32(&p_rx_fw_statistics_pram->frlossinmacer);
 532                 rx_firmware_statistics->pausefr =
 533                     in_be32(&p_rx_fw_statistics_pram->pausefr);
 534                 for (i = 0; i < 0x4; i++)
 535                         rx_firmware_statistics->res1[i] =
 536                             p_rx_fw_statistics_pram->res1[i];
 537                 rx_firmware_statistics->removevlan =
 538                     in_be32(&p_rx_fw_statistics_pram->removevlan);
 539                 rx_firmware_statistics->replacevlan =
 540                     in_be32(&p_rx_fw_statistics_pram->replacevlan);
 541                 rx_firmware_statistics->insertvlan =
 542                     in_be32(&p_rx_fw_statistics_pram->insertvlan);
 543         }
 544
 545         /* Hardware only if user handed pointer and driver actually
 546         gathers hardware statistics */
 547         if (hardware_statistics &&
 548             (in_be32(&uf_regs->upsmr) & UCC_GETH_UPSMR_HSE)) {
 549                 hardware_statistics->tx64 = in_be32(&ug_regs->tx64);
 550                 hardware_statistics->tx127 = in_be32(&ug_regs->tx127);
 551                 hardware_statistics->tx255 = in_be32(&ug_regs->tx255);
 552                 hardware_statistics->rx64 = in_be32(&ug_regs->rx64);
 553                 hardware_statistics->rx127 = in_be32(&ug_regs->rx127);
 554                 hardware_statistics->rx255 = in_be32(&ug_regs->rx255);
 555                 hardware_statistics->txok = in_be32(&ug_regs->txok);
 556                 hardware_statistics->txcf = in_be16(&ug_regs->txcf);
 557                 hardware_statistics->tmca = in_be32(&ug_regs->tmca);
 558                 hardware_statistics->tbca = in_be32(&ug_regs->tbca);
 559                 hardware_statistics->rxfok = in_be32(&ug_regs->rxfok);
 560                 hardware_statistics->rxbok = in_be32(&ug_regs->rxbok);
 561                 hardware_statistics->rbyt = in_be32(&ug_regs->rbyt);
 562                 hardware_statistics->rmca = in_be32(&ug_regs->rmca);
 563                 hardware_statistics->rbca = in_be32(&ug_regs->rbca);
 564         }
 565 }
 566
 567 static void dump_bds(struct ucc_geth_private *ugeth)
 568 {
 569         int i;
 570         int length;
 571
 572         for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) {
 573                 if (ugeth->p_tx_bd_ring[i]) {
 574                         length =
 575                             (ugeth->ug_info->bdRingLenTx[i] *
 576                              sizeof(struct qe_bd));
 577                         ugeth_info("TX BDs[%d]", i);
 578                         mem_disp(ugeth->p_tx_bd_ring[i], length);
 579                 }
 580         }
 581         for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
 582                 if (ugeth->p_rx_bd_ring[i]) {
 583                         length =
 584                             (ugeth->ug_info->bdRingLenRx[i] *
 585                              sizeof(struct qe_bd));
 586                         ugeth_info("RX BDs[%d]", i);
 587                         mem_disp(ugeth->p_rx_bd_ring[i], length);
 588                 }
 589         }
 590 }
 591
 592 static void dump_regs(struct ucc_geth_private *ugeth)
 593 {
 594         int i;
 595
 596         ugeth_info("UCC%d Geth registers:", ugeth->ug_info->uf_info.ucc_num);
 597         ugeth_info("Base address: 0x%08x", (u32) ugeth->ug_regs);
 598
 599         ugeth_info("maccfg1    : addr - 0x%08x, val - 0x%08x",
 600                    (u32) & ugeth->ug_regs->maccfg1,
 601                    in_be32(&ugeth->ug_regs->maccfg1));
 602         ugeth_info("maccfg2    : addr - 0x%08x, val - 0x%08x",
 603                    (u32) & ugeth->ug_regs->maccfg2,
 604                    in_be32(&ugeth->ug_regs->maccfg2));
 605         ugeth_info("ipgifg     : addr - 0x%08x, val - 0x%08x",
 606                    (u32) & ugeth->ug_regs->ipgifg,
 607                    in_be32(&ugeth->ug_regs->ipgifg));
 608         ugeth_info("hafdup     : addr - 0x%08x, val - 0x%08x",
 609                    (u32) & ugeth->ug_regs->hafdup,
 610                    in_be32(&ugeth->ug_regs->hafdup));
 611         ugeth_info("ifctl      : addr - 0x%08x, val - 0x%08x",
 612                    (u32) & ugeth->ug_regs->ifctl,
 613                    in_be32(&ugeth->ug_regs->ifctl));
 614         ugeth_info("ifstat     : addr - 0x%08x, val - 0x%08x",
 615                    (u32) & ugeth->ug_regs->ifstat,
 616                    in_be32(&ugeth->ug_regs->ifstat));
 617         ugeth_info("macstnaddr1: addr - 0x%08x, val - 0x%08x",
 618                    (u32) & ugeth->ug_regs->macstnaddr1,
 619                    in_be32(&ugeth->ug_regs->macstnaddr1));
 620         ugeth_info("macstnaddr2: addr - 0x%08x, val - 0x%08x",
 621                    (u32) & ugeth->ug_regs->macstnaddr2,
 622                    in_be32(&ugeth->ug_regs->macstnaddr2));
 623         ugeth_info("uempr      : addr - 0x%08x, val - 0x%08x",
 624                    (u32) & ugeth->ug_regs->uempr,
 625                    in_be32(&ugeth->ug_regs->uempr));
 626         ugeth_info("utbipar    : addr - 0x%08x, val - 0x%08x",
 627                    (u32) & ugeth->ug_regs->utbipar,
 628                    in_be32(&ugeth->ug_regs->utbipar));
 629         ugeth_info("uescr      : addr - 0x%08x, val - 0x%04x",
 630                    (u32) & ugeth->ug_regs->uescr,
 631                    in_be16(&ugeth->ug_regs->uescr));
 632         ugeth_info("tx64       : addr - 0x%08x, val - 0x%08x",
 633                    (u32) & ugeth->ug_regs->tx64,
 634                    in_be32(&ugeth->ug_regs->tx64));
 635         ugeth_info("tx127      : addr - 0x%08x, val - 0x%08x",
 636                    (u32) & ugeth->ug_regs->tx127,
 637                    in_be32(&ugeth->ug_regs->tx127));
 638         ugeth_info("tx255      : addr - 0x%08x, val - 0x%08x",
 639                    (u32) & ugeth->ug_regs->tx255,
 640                    in_be32(&ugeth->ug_regs->tx255));
 641         ugeth_info("rx64       : addr - 0x%08x, val - 0x%08x",
 642                    (u32) & ugeth->ug_regs->rx64,
 643                    in_be32(&ugeth->ug_regs->rx64));
 644         ugeth_info("rx127      : addr - 0x%08x, val - 0x%08x",
 645                    (u32) & ugeth->ug_regs->rx127,
 646                    in_be32(&ugeth->ug_regs->rx127));
 647         ugeth_info("rx255      : addr - 0x%08x, val - 0x%08x",
 648                    (u32) & ugeth->ug_regs->rx255,
 649                    in_be32(&ugeth->ug_regs->rx255));
 650         ugeth_info("txok       : addr - 0x%08x, val - 0x%08x",
 651                    (u32) & ugeth->ug_regs->txok,
 652                    in_be32(&ugeth->ug_regs->txok));
 653         ugeth_info("txcf       : addr - 0x%08x, val - 0x%04x",
 654                    (u32) & ugeth->ug_regs->txcf,
 655                    in_be16(&ugeth->ug_regs->txcf));
 656         ugeth_info("tmca       : addr - 0x%08x, val - 0x%08x",
 657                    (u32) & ugeth->ug_regs->tmca,
 658                    in_be32(&ugeth->ug_regs->tmca));
 659         ugeth_info("tbca       : addr - 0x%08x, val - 0x%08x",
 660                    (u32) & ugeth->ug_regs->tbca,
 661                    in_be32(&ugeth->ug_regs->tbca));
 662         ugeth_info("rxfok      : addr - 0x%08x, val - 0x%08x",
 663                    (u32) & ugeth->ug_regs->rxfok,
 664                    in_be32(&ugeth->ug_regs->rxfok));
 665         ugeth_info("rxbok      : addr - 0x%08x, val - 0x%08x",
 666                    (u32) & ugeth->ug_regs->rxbok,
 667                    in_be32(&ugeth->ug_regs->rxbok));
 668         ugeth_info("rbyt       : addr - 0x%08x, val - 0x%08x",
 669                    (u32) & ugeth->ug_regs->rbyt,
 670                    in_be32(&ugeth->ug_regs->rbyt));
 671         ugeth_info("rmca       : addr - 0x%08x, val - 0x%08x",
 672                    (u32) & ugeth->ug_regs->rmca,
 673                    in_be32(&ugeth->ug_regs->rmca));
 674         ugeth_info("rbca       : addr - 0x%08x, val - 0x%08x",
 675                    (u32) & ugeth->ug_regs->rbca,
 676                    in_be32(&ugeth->ug_regs->rbca));
 677         ugeth_info("scar       : addr - 0x%08x, val - 0x%08x",
 678                    (u32) & ugeth->ug_regs->scar,
 679                    in_be32(&ugeth->ug_regs->scar));
 680         ugeth_info("scam       : addr - 0x%08x, val - 0x%08x",
 681                    (u32) & ugeth->ug_regs->scam,
 682                    in_be32(&ugeth->ug_regs->scam));
 683
 684         if (ugeth->p_thread_data_tx) {
 685                 int numThreadsTxNumerical;
 686                 switch (ugeth->ug_info->numThreadsTx) {
 687                 case UCC_GETH_NUM_OF_THREADS_1:
 688                         numThreadsTxNumerical = 1;
 689                         break;
 690                 case UCC_GETH_NUM_OF_THREADS_2:
 691                         numThreadsTxNumerical = 2;
 692                         break;
 693                 case UCC_GETH_NUM_OF_THREADS_4:
 694                         numThreadsTxNumerical = 4;
 695                         break;
 696                 case UCC_GETH_NUM_OF_THREADS_6:
 697                         numThreadsTxNumerical = 6;
 698                         break;
 699                 case UCC_GETH_NUM_OF_THREADS_8:
 700                         numThreadsTxNumerical = 8;
 701                         break;
 702                 default:
 703                         numThreadsTxNumerical = 0;
 704                         break;
 705                 }
 706
 707                 ugeth_info("Thread data TXs:");
 708                 ugeth_info("Base address: 0x%08x",
 709                            (u32) ugeth->p_thread_data_tx);
 710                 for (i = 0; i < numThreadsTxNumerical; i++) {
 711                         ugeth_info("Thread data TX[%d]:", i);
 712                         ugeth_info("Base address: 0x%08x",
 713                                    (u32) & ugeth->p_thread_data_tx[i]);
 714                         mem_disp((u8 *) & ugeth->p_thread_data_tx[i],
 715                                  sizeof(struct ucc_geth_thread_data_tx));
 716                 }
 717         }
 718         if (ugeth->p_thread_data_rx) {
 719                 int numThreadsRxNumerical;
 720                 switch (ugeth->ug_info->numThreadsRx) {
 721                 case UCC_GETH_NUM_OF_THREADS_1:
 722                         numThreadsRxNumerical = 1;
 723                         break;
 724                 case UCC_GETH_NUM_OF_THREADS_2:
 725                         numThreadsRxNumerical = 2;
 726                         break;
 727                 case UCC_GETH_NUM_OF_THREADS_4:
 728                         numThreadsRxNumerical = 4;
 729                         break;
 730                 case UCC_GETH_NUM_OF_THREADS_6:
 731                         numThreadsRxNumerical = 6;
 732                         break;
 733                 case UCC_GETH_NUM_OF_THREADS_8:
 734                         numThreadsRxNumerical = 8;
 735                         break;
 736                 default:
 737                         numThreadsRxNumerical = 0;
 738                         break;
 739                 }
 740
 741                 ugeth_info("Thread data RX:");
 742                 ugeth_info("Base address: 0x%08x",
 743                            (u32) ugeth->p_thread_data_rx);
 744                 for (i = 0; i < numThreadsRxNumerical; i++) {
 745                         ugeth_info("Thread data RX[%d]:", i);
 746                         ugeth_info("Base address: 0x%08x",
 747                                    (u32) & ugeth->p_thread_data_rx[i]);
 748                         mem_disp((u8 *) & ugeth->p_thread_data_rx[i],
 749                                  sizeof(struct ucc_geth_thread_data_rx));
 750                 }
 751         }
 752         if (ugeth->p_exf_glbl_param) {
 753                 ugeth_info("EXF global param:");
 754                 ugeth_info("Base address: 0x%08x",
 755                            (u32) ugeth->p_exf_glbl_param);
 756                 mem_disp((u8 *) ugeth->p_exf_glbl_param,
 757                          sizeof(*ugeth->p_exf_glbl_param));
 758         }
 759         if (ugeth->p_tx_glbl_pram) {
 760                 ugeth_info("TX global param:");
 761                 ugeth_info("Base address: 0x%08x", (u32) ugeth->p_tx_glbl_pram);
 762                 ugeth_info("temoder      : addr - 0x%08x, val - 0x%04x",
 763                            (u32) & ugeth->p_tx_glbl_pram->temoder,
 764                            in_be16(&ugeth->p_tx_glbl_pram->temoder));
 765                 ugeth_info("sqptr        : addr - 0x%08x, val - 0x%08x",
 766                            (u32) & ugeth->p_tx_glbl_pram->sqptr,
 767                            in_be32(&ugeth->p_tx_glbl_pram->sqptr));
 768                 ugeth_info("schedulerbasepointer: addr - 0x%08x, val - 0x%08x",
 769                            (u32) & ugeth->p_tx_glbl_pram->schedulerbasepointer,
 770                            in_be32(&ugeth->p_tx_glbl_pram->
 771                                    schedulerbasepointer));
 772                 ugeth_info("txrmonbaseptr: addr - 0x%08x, val - 0x%08x",
 773                            (u32) & ugeth->p_tx_glbl_pram->txrmonbaseptr,
 774                            in_be32(&ugeth->p_tx_glbl_pram->txrmonbaseptr));
 775                 ugeth_info("tstate       : addr - 0x%08x, val - 0x%08x",
 776                            (u32) & ugeth->p_tx_glbl_pram->tstate,
 777                            in_be32(&ugeth->p_tx_glbl_pram->tstate));
 778                 ugeth_info("iphoffset[0] : addr - 0x%08x, val - 0x%02x",
 779                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[0],
 780                            ugeth->p_tx_glbl_pram->iphoffset[0]);
 781                 ugeth_info("iphoffset[1] : addr - 0x%08x, val - 0x%02x",
 782                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[1],
 783                            ugeth->p_tx_glbl_pram->iphoffset[1]);
 784                 ugeth_info("iphoffset[2] : addr - 0x%08x, val - 0x%02x",
 785                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[2],
 786                            ugeth->p_tx_glbl_pram->iphoffset[2]);
 787                 ugeth_info("iphoffset[3] : addr - 0x%08x, val - 0x%02x",
 788                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[3],
 789                            ugeth->p_tx_glbl_pram->iphoffset[3]);
 790                 ugeth_info("iphoffset[4] : addr - 0x%08x, val - 0x%02x",
 791                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[4],
 792                            ugeth->p_tx_glbl_pram->iphoffset[4]);
 793                 ugeth_info("iphoffset[5] : addr - 0x%08x, val - 0x%02x",
 794                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[5],
 795                            ugeth->p_tx_glbl_pram->iphoffset[5]);
 796                 ugeth_info("iphoffset[6] : addr - 0x%08x, val - 0x%02x",
 797                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[6],
 798                            ugeth->p_tx_glbl_pram->iphoffset[6]);
 799                 ugeth_info("iphoffset[7] : addr - 0x%08x, val - 0x%02x",
 800                            (u32) & ugeth->p_tx_glbl_pram->iphoffset[7],
 801                            ugeth->p_tx_glbl_pram->iphoffset[7]);
 802                 ugeth_info("vtagtable[0] : addr - 0x%08x, val - 0x%08x",
 803                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[0],
 804                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[0]));
 805                 ugeth_info("vtagtable[1] : addr - 0x%08x, val - 0x%08x",
 806                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[1],
 807                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[1]));
 808                 ugeth_info("vtagtable[2] : addr - 0x%08x, val - 0x%08x",
 809                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[2],
 810                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[2]));
 811                 ugeth_info("vtagtable[3] : addr - 0x%08x, val - 0x%08x",
 812                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[3],
 813                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[3]));
 814                 ugeth_info("vtagtable[4] : addr - 0x%08x, val - 0x%08x",
 815                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[4],
 816                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[4]));
 817                 ugeth_info("vtagtable[5] : addr - 0x%08x, val - 0x%08x",
 818                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[5],
 819                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[5]));
 820                 ugeth_info("vtagtable[6] : addr - 0x%08x, val - 0x%08x",
 821                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[6],
 822                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[6]));
 823                 ugeth_info("vtagtable[7] : addr - 0x%08x, val - 0x%08x",
 824                            (u32) & ugeth->p_tx_glbl_pram->vtagtable[7],
 825                            in_be32(&ugeth->p_tx_glbl_pram->vtagtable[7]));
 826                 ugeth_info("tqptr        : addr - 0x%08x, val - 0x%08x",
 827                            (u32) & ugeth->p_tx_glbl_pram->tqptr,
 828                            in_be32(&ugeth->p_tx_glbl_pram->tqptr));
 829         }
 830         if (ugeth->p_rx_glbl_pram) {
 831                 ugeth_info("RX global param:");
 832                 ugeth_info("Base address: 0x%08x", (u32) ugeth->p_rx_glbl_pram);
 833                 ugeth_info("remoder         : addr - 0x%08x, val - 0x%08x",
 834                            (u32) & ugeth->p_rx_glbl_pram->remoder,
 835                            in_be32(&ugeth->p_rx_glbl_pram->remoder));
 836                 ugeth_info("rqptr           : addr - 0x%08x, val - 0x%08x",
 837                            (u32) & ugeth->p_rx_glbl_pram->rqptr,
 838                            in_be32(&ugeth->p_rx_glbl_pram->rqptr));
 839                 ugeth_info("typeorlen       : addr - 0x%08x, val - 0x%04x",
 840                            (u32) & ugeth->p_rx_glbl_pram->typeorlen,
 841                            in_be16(&ugeth->p_rx_glbl_pram->typeorlen));
 842                 ugeth_info("rxgstpack       : addr - 0x%08x, val - 0x%02x",
 843                            (u32) & ugeth->p_rx_glbl_pram->rxgstpack,
 844                            ugeth->p_rx_glbl_pram->rxgstpack);
 845                 ugeth_info("rxrmonbaseptr   : addr - 0x%08x, val - 0x%08x",
 846                            (u32) & ugeth->p_rx_glbl_pram->rxrmonbaseptr,
 847                            in_be32(&ugeth->p_rx_glbl_pram->rxrmonbaseptr));
 848                 ugeth_info("intcoalescingptr: addr - 0x%08x, val - 0x%08x",
 849                            (u32) & ugeth->p_rx_glbl_pram->intcoalescingptr,
 850                            in_be32(&ugeth->p_rx_glbl_pram->intcoalescingptr));
 851                 ugeth_info("rstate          : addr - 0x%08x, val - 0x%02x",
 852                            (u32) & ugeth->p_rx_glbl_pram->rstate,
 853                            ugeth->p_rx_glbl_pram->rstate);
 854                 ugeth_info("mrblr           : addr - 0x%08x, val - 0x%04x",
 855                            (u32) & ugeth->p_rx_glbl_pram->mrblr,
 856                            in_be16(&ugeth->p_rx_glbl_pram->mrblr));
 857                 ugeth_info("rbdqptr         : addr - 0x%08x, val - 0x%08x",
 858                            (u32) & ugeth->p_rx_glbl_pram->rbdqptr,
 859                            in_be32(&ugeth->p_rx_glbl_pram->rbdqptr));
 860                 ugeth_info("mflr            : addr - 0x%08x, val - 0x%04x",
 861                            (u32) & ugeth->p_rx_glbl_pram->mflr,
 862                            in_be16(&ugeth->p_rx_glbl_pram->mflr));
 863                 ugeth_info("minflr          : addr - 0x%08x, val - 0x%04x",
 864                            (u32) & ugeth->p_rx_glbl_pram->minflr,
 865                            in_be16(&ugeth->p_rx_glbl_pram->minflr));
 866                 ugeth_info("maxd1           : addr - 0x%08x, val - 0x%04x",
 867                            (u32) & ugeth->p_rx_glbl_pram->maxd1,
 868                            in_be16(&ugeth->p_rx_glbl_pram->maxd1));
 869                 ugeth_info("maxd2           : addr - 0x%08x, val - 0x%04x",
 870                            (u32) & ugeth->p_rx_glbl_pram->maxd2,
 871                            in_be16(&ugeth->p_rx_glbl_pram->maxd2));
 872                 ugeth_info("ecamptr         : addr - 0x%08x, val - 0x%08x",
 873                            (u32) & ugeth->p_rx_glbl_pram->ecamptr,
 874                            in_be32(&ugeth->p_rx_glbl_pram->ecamptr));
 875                 ugeth_info("l2qt            : addr - 0x%08x, val - 0x%08x",
 876                            (u32) & ugeth->p_rx_glbl_pram->l2qt,
 877                            in_be32(&ugeth->p_rx_glbl_pram->l2qt));
 878                 ugeth_info("l3qt[0]         : addr - 0x%08x, val - 0x%08x",
 879                            (u32) & ugeth->p_rx_glbl_pram->l3qt[0],
 880                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[0]));
 881                 ugeth_info("l3qt[1]         : addr - 0x%08x, val - 0x%08x",
 882                            (u32) & ugeth->p_rx_glbl_pram->l3qt[1],
 883                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[1]));
 884                 ugeth_info("l3qt[2]         : addr - 0x%08x, val - 0x%08x",
 885                            (u32) & ugeth->p_rx_glbl_pram->l3qt[2],
 886                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[2]));
 887                 ugeth_info("l3qt[3]         : addr - 0x%08x, val - 0x%08x",
 888                            (u32) & ugeth->p_rx_glbl_pram->l3qt[3],
 889                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[3]));
 890                 ugeth_info("l3qt[4]         : addr - 0x%08x, val - 0x%08x",
 891                            (u32) & ugeth->p_rx_glbl_pram->l3qt[4],
 892                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[4]));
 893                 ugeth_info("l3qt[5]         : addr - 0x%08x, val - 0x%08x",
 894                            (u32) & ugeth->p_rx_glbl_pram->l3qt[5],
 895                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[5]));
 896                 ugeth_info("l3qt[6]         : addr - 0x%08x, val - 0x%08x",
 897                            (u32) & ugeth->p_rx_glbl_pram->l3qt[6],
 898                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[6]));
 899                 ugeth_info("l3qt[7]         : addr - 0x%08x, val - 0x%08x",
 900                            (u32) & ugeth->p_rx_glbl_pram->l3qt[7],
 901                            in_be32(&ugeth->p_rx_glbl_pram->l3qt[7]));
 902                 ugeth_info("vlantype        : addr - 0x%08x, val - 0x%04x",
 903                            (u32) & ugeth->p_rx_glbl_pram->vlantype,
 904                            in_be16(&ugeth->p_rx_glbl_pram->vlantype));
 905                 ugeth_info("vlantci         : addr - 0x%08x, val - 0x%04x",
 906                            (u32) & ugeth->p_rx_glbl_pram->vlantci,
 907                            in_be16(&ugeth->p_rx_glbl_pram->vlantci));
 908                 for (i = 0; i < 64; i++)
 909                         ugeth_info
 910                     ("addressfiltering[%d]: addr - 0x%08x, val - 0x%02x",
 911                              i,
 912                              (u32) & ugeth->p_rx_glbl_pram->addressfiltering[i],
 913                              ugeth->p_rx_glbl_pram->addressfiltering[i]);
 914                 ugeth_info("exfGlobalParam  : addr - 0x%08x, val - 0x%08x",
 915                            (u32) & ugeth->p_rx_glbl_pram->exfGlobalParam,
 916                            in_be32(&ugeth->p_rx_glbl_pram->exfGlobalParam));
 917         }
 918         if (ugeth->p_send_q_mem_reg) {
 919                 ugeth_info("Send Q memory registers:");
 920                 ugeth_info("Base address: 0x%08x",
 921                            (u32) ugeth->p_send_q_mem_reg);
 922                 for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) {
 923                         ugeth_info("SQQD[%d]:", i);
 924                         ugeth_info("Base address: 0x%08x",
 925                                    (u32) & ugeth->p_send_q_mem_reg->sqqd[i]);
 926                         mem_disp((u8 *) & ugeth->p_send_q_mem_reg->sqqd[i],
 927                                  sizeof(struct ucc_geth_send_queue_qd));
 928                 }
 929         }
 930         if (ugeth->p_scheduler) {
 931                 ugeth_info("Scheduler:");
 932                 ugeth_info("Base address: 0x%08x", (u32) ugeth->p_scheduler);
 933                 mem_disp((u8 *) ugeth->p_scheduler,
 934                          sizeof(*ugeth->p_scheduler));
 935         }
 936         if (ugeth->p_tx_fw_statistics_pram) {
 937                 ugeth_info("TX FW statistics pram:");
 938                 ugeth_info("Base address: 0x%08x",
 939                            (u32) ugeth->p_tx_fw_statistics_pram);
 940                 mem_disp((u8 *) ugeth->p_tx_fw_statistics_pram,
 941                          sizeof(*ugeth->p_tx_fw_statistics_pram));
 942         }
 943         if (ugeth->p_rx_fw_statistics_pram) {
 944                 ugeth_info("RX FW statistics pram:");
 945                 ugeth_info("Base address: 0x%08x",
 946                            (u32) ugeth->p_rx_fw_statistics_pram);
 947                 mem_disp((u8 *) ugeth->p_rx_fw_statistics_pram,
 948                          sizeof(*ugeth->p_rx_fw_statistics_pram));
 949         }
 950         if (ugeth->p_rx_irq_coalescing_tbl) {
 951                 ugeth_info("RX IRQ coalescing tables:");
 952                 ugeth_info("Base address: 0x%08x",
 953                            (u32) ugeth->p_rx_irq_coalescing_tbl);
 954                 for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
 955                         ugeth_info("RX IRQ coalescing table entry[%d]:", i);
 956                         ugeth_info("Base address: 0x%08x",
 957                                    (u32) & ugeth->p_rx_irq_coalescing_tbl->
 958                                    coalescingentry[i]);
 959                         ugeth_info
 960                 ("interruptcoalescingmaxvalue: addr - 0x%08x, val - 0x%08x",
 961                              (u32) & ugeth->p_rx_irq_coalescing_tbl->
 962                              coalescingentry[i].interruptcoalescingmaxvalue,
 963                              in_be32(&ugeth->p_rx_irq_coalescing_tbl->
 964                                      coalescingentry[i].
 965                                      interruptcoalescingmaxvalue));
 966                         ugeth_info
 967                 ("interruptcoalescingcounter : addr - 0x%08x, val - 0x%08x",
 968                              (u32) & ugeth->p_rx_irq_coalescing_tbl->
 969                              coalescingentry[i].interruptcoalescingcounter,
 970                              in_be32(&ugeth->p_rx_irq_coalescing_tbl->
 971                                      coalescingentry[i].
 972                                      interruptcoalescingcounter));
 973                 }
 974         }
 975         if (ugeth->p_rx_bd_qs_tbl) {
 976                 ugeth_info("RX BD QS tables:");
 977                 ugeth_info("Base address: 0x%08x", (u32) ugeth->p_rx_bd_qs_tbl);
 978                 for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
 979                         ugeth_info("RX BD QS table[%d]:", i);
 980                         ugeth_info("Base address: 0x%08x",
 981                                    (u32) & ugeth->p_rx_bd_qs_tbl[i]);
 982                         ugeth_info
 983                             ("bdbaseptr        : addr - 0x%08x, val - 0x%08x",
 984                              (u32) & ugeth->p_rx_bd_qs_tbl[i].bdbaseptr,
 985                              in_be32(&ugeth->p_rx_bd_qs_tbl[i].bdbaseptr));
 986                         ugeth_info
 987                             ("bdptr            : addr - 0x%08x, val - 0x%08x",
 988                              (u32) & ugeth->p_rx_bd_qs_tbl[i].bdptr,
 989                              in_be32(&ugeth->p_rx_bd_qs_tbl[i].bdptr));
 990                         ugeth_info
 991                             ("externalbdbaseptr: addr - 0x%08x, val - 0x%08x",
 992                              (u32) & ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
 993                              in_be32(&ugeth->p_rx_bd_qs_tbl[i].
 994                                      externalbdbaseptr));
 995                         ugeth_info
 996                             ("externalbdptr    : addr - 0x%08x, val - 0x%08x",
 997                              (u32) & ugeth->p_rx_bd_qs_tbl[i].externalbdptr,
 998                              in_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdptr));
 999                         ugeth_info("ucode RX Prefetched BDs:");
1000                         ugeth_info("Base address: 0x%08x",
1001                                    (u32)
1002                                    qe_muram_addr(in_be32
1003                                                  (&ugeth->p_rx_bd_qs_tbl[i].
1004                                                   bdbaseptr)));
1005                         mem_disp((u8 *)
1006                                  qe_muram_addr(in_be32
1007                                                (&ugeth->p_rx_bd_qs_tbl[i].
1008                                                 bdbaseptr)),
1009                                  sizeof(struct ucc_geth_rx_prefetched_bds));
1010                 }
1011         }
1012         if (ugeth->p_init_enet_param_shadow) {
1013                 int size;
1014                 ugeth_info("Init enet param shadow:");
1015                 ugeth_info("Base address: 0x%08x",
1016                            (u32) ugeth->p_init_enet_param_shadow);
1017                 mem_disp((u8 *) ugeth->p_init_enet_param_shadow,
1018                          sizeof(*ugeth->p_init_enet_param_shadow));
1019
1020                 size = sizeof(struct ucc_geth_thread_rx_pram);
1021                 if (ugeth->ug_info->rxExtendedFiltering) {
1022                         size +=
1023                             THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING;
1024                         if (ugeth->ug_info->largestexternallookupkeysize ==
1025                             QE_FLTR_TABLE_LOOKUP_KEY_SIZE_8_BYTES)
1026                                 size +=
1027                         THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_8;
1028                         if (ugeth->ug_info->largestexternallookupkeysize ==
1029                             QE_FLTR_TABLE_LOOKUP_KEY_SIZE_16_BYTES)
1030                                 size +=
1031                         THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_16;
1032                 }
1033
1034                 dump_init_enet_entries(ugeth,
1035                                        &(ugeth->p_init_enet_param_shadow->
1036                                          txthread[0]),
1037                                        ENET_INIT_PARAM_MAX_ENTRIES_TX,
1038                                        sizeof(struct ucc_geth_thread_tx_pram),
1039                                        ugeth->ug_info->riscTx, 0);
1040                 dump_init_enet_entries(ugeth,
1041                                        &(ugeth->p_init_enet_param_shadow->
1042                                          rxthread[0]),
1043                                        ENET_INIT_PARAM_MAX_ENTRIES_RX, size,
1044                                        ugeth->ug_info->riscRx, 1);
1045         }
1046 }
1047 #endif /* DEBUG */
1048
1049 static void init_default_reg_vals(u32 __iomem *upsmr_register,
1050                                   u32 __iomem *maccfg1_register,
1051                                   u32 __iomem *maccfg2_register)
1052 {
1053         out_be32(upsmr_register, UCC_GETH_UPSMR_INIT);
1054         out_be32(maccfg1_register, UCC_GETH_MACCFG1_INIT);
1055         out_be32(maccfg2_register, UCC_GETH_MACCFG2_INIT);
1056 }
1057
1058 static int init_half_duplex_params(int alt_beb,
1059                                    int back_pressure_no_backoff,
1060                                    int no_backoff,
1061                                    int excess_defer,
1062                                    u8 alt_beb_truncation,
1063                                    u8 max_retransmissions,
1064                                    u8 collision_window,
1065                                    u32 __iomem *hafdup_register)
1066 {
1067         u32 value = 0;
1068
1069         if ((alt_beb_truncation > HALFDUP_ALT_BEB_TRUNCATION_MAX) ||
1070             (max_retransmissions > HALFDUP_MAX_RETRANSMISSION_MAX) ||
1071             (collision_window > HALFDUP_COLLISION_WINDOW_MAX))
1072                 return -EINVAL;
1073
1074         value = (u32) (alt_beb_truncation << HALFDUP_ALT_BEB_TRUNCATION_SHIFT);
1075
1076         if (alt_beb)
1077                 value |= HALFDUP_ALT_BEB;
1078         if (back_pressure_no_backoff)
1079                 value |= HALFDUP_BACK_PRESSURE_NO_BACKOFF;
1080         if (no_backoff)
1081                 value |= HALFDUP_NO_BACKOFF;
1082         if (excess_defer)
1083                 value |= HALFDUP_EXCESSIVE_DEFER;
1084
1085         value |= (max_retransmissions << HALFDUP_MAX_RETRANSMISSION_SHIFT);
1086
1087         value |= collision_window;
1088
1089         out_be32(hafdup_register, value);
1090         return 0;
1091 }
1092
1093 static int init_inter_frame_gap_params(u8 non_btb_cs_ipg,
1094                                        u8 non_btb_ipg,
1095                                        u8 min_ifg,
1096                                        u8 btb_ipg,
1097                                        u32 __iomem *ipgifg_register)
1098 {
1099         u32 value = 0;
1100
1101         /* Non-Back-to-back IPG part 1 should be <= Non-Back-to-back
1102         IPG part 2 */
1103         if (non_btb_cs_ipg > non_btb_ipg)
1104                 return -EINVAL;
1105
1106         if ((non_btb_cs_ipg > IPGIFG_NON_BACK_TO_BACK_IFG_PART1_MAX) ||
1107             (non_btb_ipg > IPGIFG_NON_BACK_TO_BACK_IFG_PART2_MAX) ||
1108             /*(min_ifg        > IPGIFG_MINIMUM_IFG_ENFORCEMENT_MAX) || */
1109             (btb_ipg > IPGIFG_BACK_TO_BACK_IFG_MAX))
1110                 return -EINVAL;
1111
1112         value |=
1113             ((non_btb_cs_ipg << IPGIFG_NON_BACK_TO_BACK_IFG_PART1_SHIFT) &
1114              IPGIFG_NBTB_CS_IPG_MASK);
1115         value |=
1116             ((non_btb_ipg << IPGIFG_NON_BACK_TO_BACK_IFG_PART2_SHIFT) &
1117              IPGIFG_NBTB_IPG_MASK);
1118         value |=
1119             ((min_ifg << IPGIFG_MINIMUM_IFG_ENFORCEMENT_SHIFT) &
1120              IPGIFG_MIN_IFG_MASK);
1121         value |= (btb_ipg & IPGIFG_BTB_IPG_MASK);
1122
1123         out_be32(ipgifg_register, value);
1124         return 0;
1125 }
1126
1127 int init_flow_control_params(u32 automatic_flow_control_mode,
1128                                     int rx_flow_control_enable,
1129                                     int tx_flow_control_enable,
1130                                     u16 pause_period,
1131                                     u16 extension_field,
1132                                     u32 __iomem *upsmr_register,
1133                                     u32 __iomem *uempr_register,
1134                                     u32 __iomem *maccfg1_register)
1135 {
1136         u32 value = 0;
1137
1138         /* Set UEMPR register */
1139         value = (u32) pause_period << UEMPR_PAUSE_TIME_VALUE_SHIFT;
1140         value |= (u32) extension_field << UEMPR_EXTENDED_PAUSE_TIME_VALUE_SHIFT;
1141         out_be32(uempr_register, value);
1142
1143         /* Set UPSMR register */
1144         setbits32(upsmr_register, automatic_flow_control_mode);
1145
1146         value = in_be32(maccfg1_register);
1147         if (rx_flow_control_enable)
1148                 value |= MACCFG1_FLOW_RX;
1149         if (tx_flow_control_enable)
1150                 value |= MACCFG1_FLOW_TX;
1151         out_be32(maccfg1_register, value);
1152
1153         return 0;
1154 }
1155
1156 static int init_hw_statistics_gathering_mode(int enable_hardware_statistics,
1157                                              int auto_zero_hardware_statistics,
1158                                              u32 __iomem *upsmr_register,
1159                                              u16 __iomem *uescr_register)
1160 {
1161         u16 uescr_value = 0;
1162
1163         /* Enable hardware statistics gathering if requested */
1164         if (enable_hardware_statistics)
1165                 setbits32(upsmr_register, UCC_GETH_UPSMR_HSE);
1166
1167         /* Clear hardware statistics counters */
1168         uescr_value = in_be16(uescr_register);
1169         uescr_value |= UESCR_CLRCNT;
1170         /* Automatically zero hardware statistics counters on read,
1171         if requested */
1172         if (auto_zero_hardware_statistics)
1173                 uescr_value |= UESCR_AUTOZ;
1174         out_be16(uescr_register, uescr_value);
1175
1176         return 0;
1177 }
1178
1179 static int init_firmware_statistics_gathering_mode(int
1180                 enable_tx_firmware_statistics,
1181                 int enable_rx_firmware_statistics,
1182                 u32 __iomem *tx_rmon_base_ptr,
1183                 u32 tx_firmware_statistics_structure_address,
1184                 u32 __iomem *rx_rmon_base_ptr,
1185                 u32 rx_firmware_statistics_structure_address,
1186                 u16 __iomem *temoder_register,
1187                 u32 __iomem *remoder_register)
1188 {
1189         /* Note: this function does not check if */
1190         /* the parameters it receives are NULL   */
1191
1192         if (enable_tx_firmware_statistics) {
1193                 out_be32(tx_rmon_base_ptr,
1194                          tx_firmware_statistics_structure_address);
1195                 setbits16(temoder_register, TEMODER_TX_RMON_STATISTICS_ENABLE);
1196         }
1197
1198         if (enable_rx_firmware_statistics) {
1199                 out_be32(rx_rmon_base_ptr,
1200                          rx_firmware_statistics_structure_address);
1201                 setbits32(remoder_register, REMODER_RX_RMON_STATISTICS_ENABLE);
1202         }
1203
1204         return 0;
1205 }
1206
1207 static int init_mac_station_addr_regs(u8 address_byte_0,
1208                                       u8 address_byte_1,
1209                                       u8 address_byte_2,
1210                                       u8 address_byte_3,
1211                                       u8 address_byte_4,
1212                                       u8 address_byte_5,
1213                                       u32 __iomem *macstnaddr1_register,
1214                                       u32 __iomem *macstnaddr2_register)
1215 {
1216         u32 value = 0;
1217
1218         /* Example: for a station address of 0x12345678ABCD, */
1219         /* 0x12 is byte 0, 0x34 is byte 1 and so on and 0xCD is byte 5 */
1220
1221         /* MACSTNADDR1 Register: */
1222
1223         /* 0                      7   8                      15  */
1224         /* station address byte 5     station address byte 4     */
1225         /* 16                     23  24                     31  */
1226         /* station address byte 3     station address byte 2     */
1227         value |= (u32) ((address_byte_2 << 0) & 0x000000FF);
1228         value |= (u32) ((address_byte_3 << 8) & 0x0000FF00);
1229         value |= (u32) ((address_byte_4 << 16) & 0x00FF0000);
1230         value |= (u32) ((address_byte_5 << 24) & 0xFF000000);
1231
1232         out_be32(macstnaddr1_register, value);
1233
1234         /* MACSTNADDR2 Register: */
1235
1236         /* 0                      7   8                      15  */
1237         /* station address byte 1     station address byte 0     */
1238         /* 16                     23  24                     31  */
1239         /*         reserved                   reserved           */
1240         value = 0;
1241         value |= (u32) ((address_byte_0 << 16) & 0x00FF0000);
1242         value |= (u32) ((address_byte_1 << 24) & 0xFF000000);
1243
1244         out_be32(macstnaddr2_register, value);
1245
1246         return 0;
1247 }
1248
1249 static int init_check_frame_length_mode(int length_check,
1250                                         u32 __iomem *maccfg2_register)
1251 {
1252         u32 value = 0;
1253
1254         value = in_be32(maccfg2_register);
1255
1256         if (length_check)
1257                 value |= MACCFG2_LC;
1258         else
1259                 value &= ~MACCFG2_LC;
1260
1261         out_be32(maccfg2_register, value);
1262         return 0;
1263 }
1264
1265 static int init_preamble_length(u8 preamble_length,
1266                                 u32 __iomem *maccfg2_register)
1267 {
1268         if ((preamble_length < 3) || (preamble_length > 7))
1269                 return -EINVAL;
1270
1271         clrsetbits_be32(maccfg2_register, MACCFG2_PREL_MASK,
1272                         preamble_length << MACCFG2_PREL_SHIFT);
1273
1274         return 0;
1275 }
1276
1277 static int init_rx_parameters(int reject_broadcast,
1278                               int receive_short_frames,
1279                               int promiscuous, u32 __iomem *upsmr_register)
1280 {
1281         u32 value = 0;
1282
1283         value = in_be32(upsmr_register);
1284
1285         if (reject_broadcast)
1286                 value |= UCC_GETH_UPSMR_BRO;
1287         else
1288                 value &= ~UCC_GETH_UPSMR_BRO;
1289
1290         if (receive_short_frames)
1291                 value |= UCC_GETH_UPSMR_RSH;
1292         else
1293                 value &= ~UCC_GETH_UPSMR_RSH;
1294
1295         if (promiscuous)
1296                 value |= UCC_GETH_UPSMR_PRO;
1297         else
1298                 value &= ~UCC_GETH_UPSMR_PRO;
1299
1300         out_be32(upsmr_register, value);
1301
1302         return 0;
1303 }
1304
1305 static int init_max_rx_buff_len(u16 max_rx_buf_len,
1306                                 u16 __iomem *mrblr_register)
1307 {
1308         /* max_rx_buf_len value must be a multiple of 128 */
1309         if ((max_rx_buf_len == 0) ||
1310             (max_rx_buf_len % UCC_GETH_MRBLR_ALIGNMENT))
1311                 return -EINVAL;
1312
1313         out_be16(mrblr_register, max_rx_buf_len);
1314         return 0;
1315 }
1316
1317 static int init_min_frame_len(u16 min_frame_length,
1318                               u16 __iomem *minflr_register,
1319                               u16 __iomem *mrblr_register)
1320 {
1321         u16 mrblr_value = 0;
1322
1323         mrblr_value = in_be16(mrblr_register);
1324         if (min_frame_length >= (mrblr_value - 4))
1325                 return -EINVAL;
1326
1327         out_be16(minflr_register, min_frame_length);
1328         return 0;
1329 }
1330
1331 static int adjust_enet_interface(struct ucc_geth_private *ugeth)
1332 {
1333         struct ucc_geth_info *ug_info;
1334         struct ucc_geth __iomem *ug_regs;
1335         struct ucc_fast __iomem *uf_regs;
1336         int ret_val;
1337         u32 upsmr, maccfg2, tbiBaseAddress;
1338         u16 value;
1339
1340         ugeth_vdbg("%s: IN", __func__);
1341
1342         ug_info = ugeth->ug_info;
1343         ug_regs = ugeth->ug_regs;
1344         uf_regs = ugeth->uccf->uf_regs;
1345
1346         /*                    Set MACCFG2                    */
1347         maccfg2 = in_be32(&ug_regs->maccfg2);
1348         maccfg2 &= ~MACCFG2_INTERFACE_MODE_MASK;
1349         if ((ugeth->max_speed == SPEED_10) ||
1350             (ugeth->max_speed == SPEED_100))
1351                 maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
1352         else if (ugeth->max_speed == SPEED_1000)
1353                 maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE;
1354         maccfg2 |= ug_info->padAndCrc;
1355         out_be32(&ug_regs->maccfg2, maccfg2);
1356
1357         /*                    Set UPSMR                      */
1358         upsmr = in_be32(&uf_regs->upsmr);
1359         upsmr &= ~(UCC_GETH_UPSMR_RPM | UCC_GETH_UPSMR_R10M |
1360                    UCC_GETH_UPSMR_TBIM | UCC_GETH_UPSMR_RMM);
1361         if ((ugeth->phy_interface == PHY_INTERFACE_MODE_RMII) ||
1362             (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII) ||
1363             (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_ID) ||
1364             (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_RXID) ||
1365             (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_TXID) ||
1366             (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1367                 if (ugeth->phy_interface != PHY_INTERFACE_MODE_RMII)
1368                         upsmr |= UCC_GETH_UPSMR_RPM;
1369                 switch (ugeth->max_speed) {
1370                 case SPEED_10:
1371                         upsmr |= UCC_GETH_UPSMR_R10M;
1372                         /* FALLTHROUGH */
1373                 case SPEED_100:
1374                         if (ugeth->phy_interface != PHY_INTERFACE_MODE_RTBI)
1375                                 upsmr |= UCC_GETH_UPSMR_RMM;
1376                 }
1377         }
1378         if ((ugeth->phy_interface == PHY_INTERFACE_MODE_TBI) ||
1379             (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1380                 upsmr |= UCC_GETH_UPSMR_TBIM;
1381         }
1382         if ((ugeth->phy_interface == PHY_INTERFACE_MODE_SGMII))
1383                 upsmr |= UCC_GETH_UPSMR_SGMM;
1384
1385         out_be32(&uf_regs->upsmr, upsmr);
1386
1387         /* Disable autonegotiation in tbi mode, because by default it
1388         comes up in autonegotiation mode. */
1389         /* Note that this depends on proper setting in utbipar register. */
1390         if ((ugeth->phy_interface == PHY_INTERFACE_MODE_TBI) ||
1391             (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1392                 tbiBaseAddress = in_be32(&ug_regs->utbipar);
1393                 tbiBaseAddress &= UTBIPAR_PHY_ADDRESS_MASK;
1394                 tbiBaseAddress >>= UTBIPAR_PHY_ADDRESS_SHIFT;
1395                 value = ugeth->phydev->bus->read(ugeth->phydev->bus,
1396                                 (u8) tbiBaseAddress, ENET_TBI_MII_CR);
1397                 value &= ~0x1000;       /* Turn off autonegotiation */
1398                 ugeth->phydev->bus->write(ugeth->phydev->bus,
1399                                 (u8) tbiBaseAddress, ENET_TBI_MII_CR, value);
1400         }
1401
1402         init_check_frame_length_mode(ug_info->lengthCheckRx, &ug_regs->maccfg2);
1403
1404         ret_val = init_preamble_length(ug_info->prel, &ug_regs->maccfg2);
1405         if (ret_val != 0) {
1406                 if (netif_msg_probe(ugeth))
1407                         ugeth_err("%s: Preamble length must be between 3 and 7 inclusive.",
1408                              __func__);
1409                 return ret_val;
1410         }
1411
1412         return 0;
1413 }
1414
1415 static int ugeth_graceful_stop_tx(struct ucc_geth_private *ugeth)
1416 {
1417         struct ucc_fast_private *uccf;
1418         u32 cecr_subblock;
1419         u32 temp;
1420         int i = 10;
1421
1422         uccf = ugeth->uccf;
1423
1424         /* Mask GRACEFUL STOP TX interrupt bit and clear it */
1425         clrbits32(uccf->p_uccm, UCC_GETH_UCCE_GRA);
1426         out_be32(uccf->p_ucce, UCC_GETH_UCCE_GRA);  /* clear by writing 1 */
1427
1428         /* Issue host command */
1429         cecr_subblock =
1430             ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
1431         qe_issue_cmd(QE_GRACEFUL_STOP_TX, cecr_subblock,
1432                      QE_CR_PROTOCOL_ETHERNET, 0);
1433
1434         /* Wait for command to complete */
1435         do {
1436                 msleep(10);
1437                 temp = in_be32(uccf->p_ucce);
1438         } while (!(temp & UCC_GETH_UCCE_GRA) && --i);
1439
1440         uccf->stopped_tx = 1;
1441
1442         return 0;
1443 }
1444
1445 static int ugeth_graceful_stop_rx(struct ucc_geth_private *ugeth)
1446 {
1447         struct ucc_fast_private *uccf;
1448         u32 cecr_subblock;
1449         u8 temp;
1450         int i = 10;
1451
1452         uccf = ugeth->uccf;
1453
1454         /* Clear acknowledge bit */
1455         temp = in_8(&ugeth->p_rx_glbl_pram->rxgstpack);
1456         temp &= ~GRACEFUL_STOP_ACKNOWLEDGE_RX;
1457         out_8(&ugeth->p_rx_glbl_pram->rxgstpack, temp);
1458
1459         /* Keep issuing command and checking acknowledge bit until
1460         it is asserted, according to spec */
1461         do {
1462                 /* Issue host command */
1463                 cecr_subblock =
1464                     ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.
1465                                                 ucc_num);
1466                 qe_issue_cmd(QE_GRACEFUL_STOP_RX, cecr_subblock,
1467                              QE_CR_PROTOCOL_ETHERNET, 0);
1468                 msleep(10);
1469                 temp = in_8(&ugeth->p_rx_glbl_pram->rxgstpack);
1470         } while (!(temp & GRACEFUL_STOP_ACKNOWLEDGE_RX) && --i);
1471
1472         uccf->stopped_rx = 1;
1473
1474         return 0;
1475 }
1476
1477 static int ugeth_restart_tx(struct ucc_geth_private *ugeth)
1478 {
1479         struct ucc_fast_private *uccf;
1480         u32 cecr_subblock;
1481
1482         uccf = ugeth->uccf;
1483
1484         cecr_subblock =
1485             ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
1486         qe_issue_cmd(QE_RESTART_TX, cecr_subblock, QE_CR_PROTOCOL_ETHERNET, 0);
1487         uccf->stopped_tx = 0;
1488
1489         return 0;
1490 }
1491
1492 static int ugeth_restart_rx(struct ucc_geth_private *ugeth)
1493 {
1494         struct ucc_fast_private *uccf;
1495         u32 cecr_subblock;
1496
1497         uccf = ugeth->uccf;
1498
1499         cecr_subblock =
1500             ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
1501         qe_issue_cmd(QE_RESTART_RX, cecr_subblock, QE_CR_PROTOCOL_ETHERNET,
1502                      0);
1503         uccf->stopped_rx = 0;
1504
1505         return 0;
1506 }
1507
1508 static int ugeth_enable(struct ucc_geth_private *ugeth, enum comm_dir mode)
1509 {
1510         struct ucc_fast_private *uccf;
1511         int enabled_tx, enabled_rx;
1512
1513         uccf = ugeth->uccf;
1514
1515         /* check if the UCC number is in range. */
1516         if (ugeth->ug_info->uf_info.ucc_num >= UCC_MAX_NUM) {
1517                 if (netif_msg_probe(ugeth))
1518                         ugeth_err("%s: ucc_num out of range.", __func__);
1519                 return -EINVAL;
1520         }
1521
1522         enabled_tx = uccf->enabled_tx;
1523         enabled_rx = uccf->enabled_rx;
1524
1525         /* Get Tx and Rx going again, in case this channel was actively
1526         disabled. */
1527         if ((mode & COMM_DIR_TX) && (!enabled_tx) && uccf->stopped_tx)
1528                 ugeth_restart_tx(ugeth);
1529         if ((mode & COMM_DIR_RX) && (!enabled_rx) && uccf->stopped_rx)
1530                 ugeth_restart_rx(ugeth);
1531
1532         ucc_fast_enable(uccf, mode);    /* OK to do even if not disabled */
1533
1534         return 0;
1535
1536 }
1537
1538 static int ugeth_disable(struct ucc_geth_private *ugeth, enum comm_dir mode)
1539 {
1540         struct ucc_fast_private *uccf;
1541
1542         uccf = ugeth->uccf;
1543
1544         /* check if the UCC number is in range. */
1545         if (ugeth->ug_info->uf_info.ucc_num >= UCC_MAX_NUM) {
1546                 if (netif_msg_probe(ugeth))
1547                         ugeth_err("%s: ucc_num out of range.", __func__);
1548                 return -EINVAL;
1549         }
1550
1551         /* Stop any transmissions */
1552         if ((mode & COMM_DIR_TX) && uccf->enabled_tx && !uccf->stopped_tx)
1553                 ugeth_graceful_stop_tx(ugeth);
1554
1555         /* Stop any receptions */
1556         if ((mode & COMM_DIR_RX) && uccf->enabled_rx && !uccf->stopped_rx)
1557                 ugeth_graceful_stop_rx(ugeth);
1558
1559         ucc_fast_disable(ugeth->uccf, mode); /* OK to do even if not enabled */
1560
1561         return 0;
1562 }
1563
1564 static void ugeth_quiesce(struct ucc_geth_private *ugeth)
1565 {
1566         /* Prevent any further xmits, plus detach the device. */
1567         netif_device_detach(ugeth->ndev);
1568
1569         /* Wait for any current xmits to finish. */
1570         netif_tx_disable(ugeth->ndev);
1571
1572         /* Disable the interrupt to avoid NAPI rescheduling. */
1573         disable_irq(ugeth->ug_info->uf_info.irq);
1574
1575         /* Stop NAPI, and possibly wait for its completion. */
1576         napi_disable(&ugeth->napi);
1577 }
1578
1579 static void ugeth_activate(struct ucc_geth_private *ugeth)
1580 {
1581         napi_enable(&ugeth->napi);
1582         enable_irq(ugeth->ug_info->uf_info.irq);
1583         netif_device_attach(ugeth->ndev);
1584 }
1585
1586 /* Called every time the controller might need to be made
1587  * aware of new link state.  The PHY code conveys this
1588  * information through variables in the ugeth structure, and this
1589  * function converts those variables into the appropriate
1590  * register values, and can bring down the device if needed.
1591  */
1592
1593 static void adjust_link(struct net_device *dev)
1594 {
1595         struct ucc_geth_private *ugeth = netdev_priv(dev);
1596         struct ucc_geth __iomem *ug_regs;
1597         struct ucc_fast __iomem *uf_regs;
1598         struct phy_device *phydev = ugeth->phydev;
1599         int new_state = 0;
1600
1601         ug_regs = ugeth->ug_regs;
1602         uf_regs = ugeth->uccf->uf_regs;
1603
1604         if (phydev->link) {
1605                 u32 tempval = in_be32(&ug_regs->maccfg2);
1606                 u32 upsmr = in_be32(&uf_regs->upsmr);
1607                 /* Now we make sure that we can be in full duplex mode.
1608                  * If not, we operate in half-duplex mode. */
1609                 if (phydev->duplex != ugeth->oldduplex) {
1610                         new_state = 1;
1611                         if (!(phydev->duplex))
1612                                 tempval &= ~(MACCFG2_FDX);
1613                         else
1614                                 tempval |= MACCFG2_FDX;
1615                         ugeth->oldduplex = phydev->duplex;
1616                 }
1617
1618                 if (phydev->speed != ugeth->oldspeed) {
1619                         new_state = 1;
1620                         switch (phydev->speed) {
1621                         case SPEED_1000:
1622                                 tempval = ((tempval &
1623                                             ~(MACCFG2_INTERFACE_MODE_MASK)) |
1624                                             MACCFG2_INTERFACE_MODE_BYTE);
1625                                 break;
1626                         case SPEED_100:
1627                         case SPEED_10:
1628                                 tempval = ((tempval &
1629                                             ~(MACCFG2_INTERFACE_MODE_MASK)) |
1630                                             MACCFG2_INTERFACE_MODE_NIBBLE);
1631                                 /* if reduced mode, re-set UPSMR.R10M */
1632                                 if ((ugeth->phy_interface == PHY_INTERFACE_MODE_RMII) ||
1633                                     (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII) ||
1634                                     (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_ID) ||
1635                                     (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_RXID) ||
1636                                     (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_TXID) ||
1637                                     (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1638                                         if (phydev->speed == SPEED_10)
1639                                                 upsmr |= UCC_GETH_UPSMR_R10M;
1640                                         else
1641                                                 upsmr &= ~UCC_GETH_UPSMR_R10M;
1642                                 }
1643                                 break;
1644                         default:
1645                                 if (netif_msg_link(ugeth))
1646                                         ugeth_warn(
1647                                                 "%s: Ack!  Speed (%d) is not 10/100/1000!",
1648                                                 dev->name, phydev->speed);
1649                                 break;
1650                         }
1651                         ugeth->oldspeed = phydev->speed;
1652                 }
1653
1654                 /*
1655                  * To change the MAC configuration we need to disable the
1656                  * controller. To do so, we have to either grab ugeth->lock,
1657                  * which is a bad idea since 'graceful stop' commands might
1658                  * take quite a while, or we can quiesce driver's activity.
1659                  */
1660                 ugeth_quiesce(ugeth);
1661                 ugeth_disable(ugeth, COMM_DIR_RX_AND_TX);
1662
1663                 out_be32(&ug_regs->maccfg2, tempval);
1664                 out_be32(&uf_regs->upsmr, upsmr);
1665
1666                 ugeth_enable(ugeth, COMM_DIR_RX_AND_TX);
1667                 ugeth_activate(ugeth);
1668
1669                 if (!ugeth->oldlink) {
1670                         new_state = 1;
1671                         ugeth->oldlink = 1;
1672                 }
1673         } else if (ugeth->oldlink) {
1674                         new_state = 1;
1675                         ugeth->oldlink = 0;
1676                         ugeth->oldspeed = 0;
1677                         ugeth->oldduplex = -1;
1678         }
1679
1680         if (new_state && netif_msg_link(ugeth))
1681                 phy_print_status(phydev);
1682 }
1683
1684 /* Initialize TBI PHY interface for communicating with the
1685  * SERDES lynx PHY on the chip.  We communicate with this PHY
1686  * through the MDIO bus on each controller, treating it as a
1687  * "normal" PHY at the address found in the UTBIPA register.  We assume
1688  * that the UTBIPA register is valid.  Either the MDIO bus code will set
1689  * it to a value that doesn't conflict with other PHYs on the bus, or the
1690  * value doesn't matter, as there are no other PHYs on the bus.
1691  */
1692 static void uec_configure_serdes(struct net_device *dev)
1693 {
1694         struct ucc_geth_private *ugeth = netdev_priv(dev);
1695         struct ucc_geth_info *ug_info = ugeth->ug_info;
1696         struct phy_device *tbiphy;
1697
1698         if (!ug_info->tbi_node) {
1699                 dev_warn(&dev->dev, "SGMII mode requires that the device "
1700                         "tree specify a tbi-handle\n");
1701                 return;
1702         }
1703
1704         tbiphy = of_phy_find_device(ug_info->tbi_node);
1705         if (!tbiphy) {
1706                 dev_err(&dev->dev, "error: Could not get TBI device\n");
1707                 return;
1708         }
1709
1710         /*
1711          * If the link is already up, we must already be ok, and don't need to
1712          * configure and reset the TBI<->SerDes link.  Maybe U-Boot configured
1713          * everything for us?  Resetting it takes the link down and requires
1714          * several seconds for it to come back.
1715          */
1716         if (phy_read(tbiphy, ENET_TBI_MII_SR) & TBISR_LSTATUS)
1717                 return;
1718
1719         /* Single clk mode, mii mode off(for serdes communication) */
1720         phy_write(tbiphy, ENET_TBI_MII_ANA, TBIANA_SETTINGS);
1721
1722         phy_write(tbiphy, ENET_TBI_MII_TBICON, TBICON_CLK_SELECT);
1723
1724         phy_write(tbiphy, ENET_TBI_MII_CR, TBICR_SETTINGS);
1725 }
1726
1727 /* Configure the PHY for dev.
1728  * returns 0 if success.  -1 if failure
1729  */
1730 static int init_phy(struct net_device *dev)
1731 {
1732         struct ucc_geth_private *priv = netdev_priv(dev);
1733         struct ucc_geth_info *ug_info = priv->ug_info;
1734         struct phy_device *phydev;
1735
1736         priv->oldlink = 0;
1737         priv->oldspeed = 0;
1738         priv->oldduplex = -1;
1739
1740         phydev = of_phy_connect(dev, ug_info->phy_node, &adjust_link, 0,
1741                                 priv->phy_interface);
1742         if (!phydev)
1743                 phydev = of_phy_connect_fixed_link(dev, &adjust_link,
1744                                                    priv->phy_interface);
1745         if (!phydev) {
1746                 dev_err(&dev->dev, "Could not attach to PHY\n");
1747                 return -ENODEV;
1748         }
1749
1750         if (priv->phy_interface == PHY_INTERFACE_MODE_SGMII)
1751                 uec_configure_serdes(dev);
1752
1753         phydev->supported &= (ADVERTISED_10baseT_Half |
1754                                  ADVERTISED_10baseT_Full |
1755                                  ADVERTISED_100baseT_Half |
1756                                  ADVERTISED_100baseT_Full);
1757
1758         if (priv->max_speed == SPEED_1000)
1759                 phydev->supported |= ADVERTISED_1000baseT_Full;
1760
1761         phydev->advertising = phydev->supported;
1762
1763         priv->phydev = phydev;
1764
1765         return 0;
1766 }
1767
1768 static void ugeth_dump_regs(struct ucc_geth_private *ugeth)
1769 {
1770 #ifdef DEBUG
1771         ucc_fast_dump_regs(ugeth->uccf);
1772         dump_regs(ugeth);
1773         dump_bds(ugeth);
1774 #endif
1775 }
1776
1777 static int ugeth_82xx_filtering_clear_all_addr_in_hash(struct ucc_geth_private *
1778                                                        ugeth,
1779                                                        enum enet_addr_type
1780                                                        enet_addr_type)
1781 {
1782         struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
1783         struct ucc_fast_private *uccf;
1784         enum comm_dir comm_dir;
1785         struct list_head *p_lh;
1786         u16 i, num;
1787         u32 __iomem *addr_h;
1788         u32 __iomem *addr_l;
1789         u8 *p_counter;
1790
1791         uccf = ugeth->uccf;
1792
1793         p_82xx_addr_filt =
1794             (struct ucc_geth_82xx_address_filtering_pram __iomem *)
1795             ugeth->p_rx_glbl_pram->addressfiltering;
1796
1797         if (enet_addr_type == ENET_ADDR_TYPE_GROUP) {
1798                 addr_h = &(p_82xx_addr_filt->gaddr_h);
1799                 addr_l = &(p_82xx_addr_filt->gaddr_l);
1800                 p_lh = &ugeth->group_hash_q;
1801                 p_counter = &(ugeth->numGroupAddrInHash);
1802         } else if (enet_addr_type == ENET_ADDR_TYPE_INDIVIDUAL) {
1803                 addr_h = &(p_82xx_addr_filt->iaddr_h);
1804                 addr_l = &(p_82xx_addr_filt->iaddr_l);
1805                 p_lh = &ugeth->ind_hash_q;
1806                 p_counter = &(ugeth->numIndAddrInHash);
1807         } else
1808                 return -EINVAL;
1809
1810         comm_dir = 0;
1811         if (uccf->enabled_tx)
1812                 comm_dir |= COMM_DIR_TX;
1813         if (uccf->enabled_rx)
1814                 comm_dir |= COMM_DIR_RX;
1815         if (comm_dir)
1816                 ugeth_disable(ugeth, comm_dir);
1817
1818         /* Clear the hash table. */
1819         out_be32(addr_h, 0x00000000);
1820         out_be32(addr_l, 0x00000000);
1821
1822         if (!p_lh)
1823                 return 0;
1824
1825         num = *p_counter;
1826
1827         /* Delete all remaining CQ elements */
1828         for (i = 0; i < num; i++)
1829                 put_enet_addr_container(ENET_ADDR_CONT_ENTRY(dequeue(p_lh)));
1830
1831         *p_counter = 0;
1832
1833         if (comm_dir)
1834                 ugeth_enable(ugeth, comm_dir);
1835
1836         return 0;
1837 }
1838
1839 static int ugeth_82xx_filtering_clear_addr_in_paddr(struct ucc_geth_private *ugeth,
1840                                                     u8 paddr_num)
1841 {
1842         ugeth->indAddrRegUsed[paddr_num] = 0; /* mark this paddr as not used */
1843         return hw_clear_addr_in_paddr(ugeth, paddr_num);/* clear in hardware */
1844 }
1845
1846 static void ucc_geth_memclean(struct ucc_geth_private *ugeth)
1847 {
1848         u16 i, j;
1849         u8 __iomem *bd;
1850
1851         if (!ugeth)
1852                 return;
1853
1854         if (ugeth->uccf) {
1855                 ucc_fast_free(ugeth->uccf);
1856                 ugeth->uccf = NULL;
1857         }
1858
1859         if (ugeth->p_thread_data_tx) {
1860                 qe_muram_free(ugeth->thread_dat_tx_offset);
1861                 ugeth->p_thread_data_tx = NULL;
1862         }
1863         if (ugeth->p_thread_data_rx) {
1864                 qe_muram_free(ugeth->thread_dat_rx_offset);
1865                 ugeth->p_thread_data_rx = NULL;
1866         }
1867         if (ugeth->p_exf_glbl_param) {
1868                 qe_muram_free(ugeth->exf_glbl_param_offset);
1869                 ugeth->p_exf_glbl_param = NULL;
1870         }
1871         if (ugeth->p_rx_glbl_pram) {
1872                 qe_muram_free(ugeth->rx_glbl_pram_offset);
1873                 ugeth->p_rx_glbl_pram = NULL;
1874         }
1875         if (ugeth->p_tx_glbl_pram) {
1876                 qe_muram_free(ugeth->tx_glbl_pram_offset);
1877                 ugeth->p_tx_glbl_pram = NULL;
1878         }
1879         if (ugeth->p_send_q_mem_reg) {
1880                 qe_muram_free(ugeth->send_q_mem_reg_offset);
1881                 ugeth->p_send_q_mem_reg = NULL;
1882         }
1883         if (ugeth->p_scheduler) {
1884                 qe_muram_free(ugeth->scheduler_offset);
1885                 ugeth->p_scheduler = NULL;
1886         }
1887         if (ugeth->p_tx_fw_statistics_pram) {
1888                 qe_muram_free(ugeth->tx_fw_statistics_pram_offset);
1889                 ugeth->p_tx_fw_statistics_pram = NULL;
1890         }
1891         if (ugeth->p_rx_fw_statistics_pram) {
1892                 qe_muram_free(ugeth->rx_fw_statistics_pram_offset);
1893                 ugeth->p_rx_fw_statistics_pram = NULL;
1894         }
1895         if (ugeth->p_rx_irq_coalescing_tbl) {
1896                 qe_muram_free(ugeth->rx_irq_coalescing_tbl_offset);
1897                 ugeth->p_rx_irq_coalescing_tbl = NULL;
1898         }
1899         if (ugeth->p_rx_bd_qs_tbl) {
1900                 qe_muram_free(ugeth->rx_bd_qs_tbl_offset);
1901                 ugeth->p_rx_bd_qs_tbl = NULL;
1902         }
1903         if (ugeth->p_init_enet_param_shadow) {
1904                 return_init_enet_entries(ugeth,
1905                                          &(ugeth->p_init_enet_param_shadow->
1906                                            rxthread[0]),
1907                                          ENET_INIT_PARAM_MAX_ENTRIES_RX,
1908                                          ugeth->ug_info->riscRx, 1);
1909                 return_init_enet_entries(ugeth,
1910                                          &(ugeth->p_init_enet_param_shadow->
1911                                            txthread[0]),
1912                                          ENET_INIT_PARAM_MAX_ENTRIES_TX,
1913                                          ugeth->ug_info->riscTx, 0);
1914                 kfree(ugeth->p_init_enet_param_shadow);
1915                 ugeth->p_init_enet_param_shadow = NULL;
1916         }
1917         for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) {
1918                 bd = ugeth->p_tx_bd_ring[i];
1919                 if (!bd)
1920                         continue;
1921                 for (j = 0; j < ugeth->ug_info->bdRingLenTx[i]; j++) {
1922                         if (ugeth->tx_skbuff[i][j]) {
1923                                 dma_unmap_single(ugeth->dev,
1924                                                  in_be32(&((struct qe_bd __iomem *)bd)->buf),
1925                                                  (in_be32((u32 __iomem *)bd) &
1926                                                   BD_LENGTH_MASK),
1927                                                  DMA_TO_DEVICE);
1928                                 dev_kfree_skb_any(ugeth->tx_skbuff[i][j]);
1929                                 ugeth->tx_skbuff[i][j] = NULL;
1930                         }
1931                 }
1932
1933                 kfree(ugeth->tx_skbuff[i]);
1934
1935                 if (ugeth->p_tx_bd_ring[i]) {
1936                         if (ugeth->ug_info->uf_info.bd_mem_part ==
1937                             MEM_PART_SYSTEM)
1938                                 kfree((void *)ugeth->tx_bd_ring_offset[i]);
1939                         else if (ugeth->ug_info->uf_info.bd_mem_part ==
1940                                  MEM_PART_MURAM)
1941                                 qe_muram_free(ugeth->tx_bd_ring_offset[i]);
1942                         ugeth->p_tx_bd_ring[i] = NULL;
1943                 }
1944         }
1945         for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
1946                 if (ugeth->p_rx_bd_ring[i]) {
1947                         /* Return existing data buffers in ring */
1948                         bd = ugeth->p_rx_bd_ring[i];
1949                         for (j = 0; j < ugeth->ug_info->bdRingLenRx[i]; j++) {
1950                                 if (ugeth->rx_skbuff[i][j]) {
1951                                         dma_unmap_single(ugeth->dev,
1952                                                 in_be32(&((struct qe_bd __iomem *)bd)->buf),
1953                                                 ugeth->ug_info->
1954                                                 uf_info.max_rx_buf_length +
1955                                                 UCC_GETH_RX_DATA_BUF_ALIGNMENT,
1956                                                 DMA_FROM_DEVICE);
1957                                         dev_kfree_skb_any(
1958                                                 ugeth->rx_skbuff[i][j]);
1959                                         ugeth->rx_skbuff[i][j] = NULL;
1960                                 }
1961                                 bd += sizeof(struct qe_bd);
1962                         }
1963
1964                         kfree(ugeth->rx_skbuff[i]);
1965
1966                         if (ugeth->ug_info->uf_info.bd_mem_part ==
1967                             MEM_PART_SYSTEM)
1968                                 kfree((void *)ugeth->rx_bd_ring_offset[i]);
1969                         else if (ugeth->ug_info->uf_info.bd_mem_part ==
1970                                  MEM_PART_MURAM)
1971                                 qe_muram_free(ugeth->rx_bd_ring_offset[i]);
1972                         ugeth->p_rx_bd_ring[i] = NULL;
1973                 }
1974         }
1975         while (!list_empty(&ugeth->group_hash_q))
1976                 put_enet_addr_container(ENET_ADDR_CONT_ENTRY
1977                                         (dequeue(&ugeth->group_hash_q)));
1978         while (!list_empty(&ugeth->ind_hash_q))
1979                 put_enet_addr_container(ENET_ADDR_CONT_ENTRY
1980                                         (dequeue(&ugeth->ind_hash_q)));
1981         if (ugeth->ug_regs) {
1982                 iounmap(ugeth->ug_regs);
1983                 ugeth->ug_regs = NULL;
1984         }
1985
1986         skb_queue_purge(&ugeth->rx_recycle);
1987 }
1988
1989 static void ucc_geth_set_multi(struct net_device *dev)
1990 {
1991         struct ucc_geth_private *ugeth;
1992         struct dev_mc_list *dmi;
1993         struct ucc_fast __iomem *uf_regs;
1994         struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
1995         int i;
1996
1997         ugeth = netdev_priv(dev);
1998
1999         uf_regs = ugeth->uccf->uf_regs;
2000
2001         if (dev->flags & IFF_PROMISC) {
2002                 setbits32(&uf_regs->upsmr, UCC_GETH_UPSMR_PRO);
2003         } else {
2004                 clrbits32(&uf_regs->upsmr, UCC_GETH_UPSMR_PRO);
2005
2006                 p_82xx_addr_filt =
2007                     (struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->
2008                     p_rx_glbl_pram->addressfiltering;
2009
2010                 if (dev->flags & IFF_ALLMULTI) {
2011                         /* Catch all multicast addresses, so set the
2012                          * filter to all 1's.
2013                          */
2014                         out_be32(&p_82xx_addr_filt->gaddr_h, 0xffffffff);
2015                         out_be32(&p_82xx_addr_filt->gaddr_l, 0xffffffff);
2016                 } else {
2017                         /* Clear filter and add the addresses in the list.
2018                          */
2019                         out_be32(&p_82xx_addr_filt->gaddr_h, 0x0);
2020                         out_be32(&p_82xx_addr_filt->gaddr_l, 0x0);
2021
2022                         dmi = dev->mc_list;
2023
2024                         for (i = 0; i < dev->mc_count; i++, dmi = dmi->next) {
2025
2026                                 /* Only support group multicast for now.
2027                                  */
2028                                 if (!(dmi->dmi_addr[0] & 1))
2029                                         continue;
2030
2031                                 /* Ask CPM to run CRC and set bit in
2032                                  * filter mask.
2033                                  */
2034                                 hw_add_addr_in_hash(ugeth, dmi->dmi_addr);
2035                         }
2036                 }
2037         }
2038 }
2039
2040 static void ucc_geth_stop(struct ucc_geth_private *ugeth)
2041 {
2042         struct ucc_geth __iomem *ug_regs = ugeth->ug_regs;
2043         struct phy_device *phydev = ugeth->phydev;
2044
2045         ugeth_vdbg("%s: IN", __func__);
2046
2047         /* Disable the controller */
2048         ugeth_disable(ugeth, COMM_DIR_RX_AND_TX);
2049
2050         /* Tell the kernel the link is down */
2051         phy_stop(phydev);
2052
2053         /* Mask all interrupts */
2054         out_be32(ugeth->uccf->p_uccm, 0x00000000);
2055
2056         /* Clear all interrupts */
2057         out_be32(ugeth->uccf->p_ucce, 0xffffffff);
2058
2059         /* Disable Rx and Tx */
2060         clrbits32(&ug_regs->maccfg1, MACCFG1_ENABLE_RX | MACCFG1_ENABLE_TX);
2061
2062         phy_disconnect(ugeth->phydev);
2063         ugeth->phydev = NULL;
2064
2065         ucc_geth_memclean(ugeth);
2066 }
2067
2068 static int ucc_struct_init(struct ucc_geth_private *ugeth)
2069 {
2070         struct ucc_geth_info *ug_info;
2071         struct ucc_fast_info *uf_info;
2072         int i;
2073
2074         ug_info = ugeth->ug_info;
2075         uf_info = &ug_info->uf_info;
2076
2077         if (!((uf_info->bd_mem_part == MEM_PART_SYSTEM) ||
2078               (uf_info->bd_mem_part == MEM_PART_MURAM))) {
2079                 if (netif_msg_probe(ugeth))
2080                         ugeth_err("%s: Bad memory partition value.",
2081                                         __func__);
2082                 return -EINVAL;
2083         }
2084
2085         /* Rx BD lengths */
2086         for (i = 0; i < ug_info->numQueuesRx; i++) {
2087                 if ((ug_info->bdRingLenRx[i] < UCC_GETH_RX_BD_RING_SIZE_MIN) ||
2088                     (ug_info->bdRingLenRx[i] %
2089                      UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT)) {
2090                         if (netif_msg_probe(ugeth))
2091                                 ugeth_err
2092                                     ("%s: Rx BD ring length must be multiple of 4, no smaller than 8.",
2093                                         __func__);
2094                         return -EINVAL;
2095                 }
2096         }
2097
2098         /* Tx BD lengths */
2099         for (i = 0; i < ug_info->numQueuesTx; i++) {
2100                 if (ug_info->bdRingLenTx[i] < UCC_GETH_TX_BD_RING_SIZE_MIN) {
2101                         if (netif_msg_probe(ugeth))
2102                                 ugeth_err
2103                                     ("%s: Tx BD ring length must be no smaller than 2.",
2104                                      __func__);
2105                         return -EINVAL;
2106                 }
2107         }
2108
2109         /* mrblr */
2110         if ((uf_info->max_rx_buf_length == 0) ||
2111             (uf_info->max_rx_buf_length % UCC_GETH_MRBLR_ALIGNMENT)) {
2112                 if (netif_msg_probe(ugeth))
2113                         ugeth_err
2114                             ("%s: max_rx_buf_length must be non-zero multiple of 128.",
2115                              __func__);
2116                 return -EINVAL;
2117         }
2118
2119         /* num Tx queues */
2120         if (ug_info->numQueuesTx > NUM_TX_QUEUES) {
2121                 if (netif_msg_probe(ugeth))
2122                         ugeth_err("%s: number of tx queues too large.", __func__);
2123                 return -EINVAL;
2124         }
2125
2126         /* num Rx queues */
2127         if (ug_info->numQueuesRx > NUM_RX_QUEUES) {
2128                 if (netif_msg_probe(ugeth))
2129                         ugeth_err("%s: number of rx queues too large.", __func__);
2130                 return -EINVAL;
2131         }
2132
2133         /* l2qt */
2134         for (i = 0; i < UCC_GETH_VLAN_PRIORITY_MAX; i++) {
2135                 if (ug_info->l2qt[i] >= ug_info->numQueuesRx) {
2136                         if (netif_msg_probe(ugeth))
2137                                 ugeth_err
2138                                     ("%s: VLAN priority table entry must not be"
2139                                         " larger than number of Rx queues.",
2140                                      __func__);
2141                         return -EINVAL;
2142                 }
2143         }
2144
2145         /* l3qt */
2146         for (i = 0; i < UCC_GETH_IP_PRIORITY_MAX; i++) {
2147                 if (ug_info->l3qt[i] >= ug_info->numQueuesRx) {
2148                         if (netif_msg_probe(ugeth))
2149                                 ugeth_err
2150                                     ("%s: IP priority table entry must not be"
2151                                         " larger than number of Rx queues.",
2152                                      __func__);
2153                         return -EINVAL;
2154                 }
2155         }
2156
2157         if (ug_info->cam && !ug_info->ecamptr) {
2158                 if (netif_msg_probe(ugeth))
2159                         ugeth_err("%s: If cam mode is chosen, must supply cam ptr.",
2160                                   __func__);
2161                 return -EINVAL;
2162         }
2163
2164         if ((ug_info->numStationAddresses !=
2165              UCC_GETH_NUM_OF_STATION_ADDRESSES_1) &&
2166             ug_info->rxExtendedFiltering) {
2167                 if (netif_msg_probe(ugeth))
2168                         ugeth_err("%s: Number of station addresses greater than 1 "
2169                                   "not allowed in extended parsing mode.",
2170                                   __func__);
2171                 return -EINVAL;
2172         }
2173
2174         /* Generate uccm_mask for receive */
2175         uf_info->uccm_mask = ug_info->eventRegMask & UCCE_OTHER;/* Errors */
2176         for (i = 0; i < ug_info->numQueuesRx; i++)
2177                 uf_info->uccm_mask |= (UCC_GETH_UCCE_RXF0 << i);
2178
2179         for (i = 0; i < ug_info->numQueuesTx; i++)
2180                 uf_info->uccm_mask |= (UCC_GETH_UCCE_TXB0 << i);
2181         /* Initialize the general fast UCC block. */
2182         if (ucc_fast_init(uf_info, &ugeth->uccf)) {
2183                 if (netif_msg_probe(ugeth))
2184                         ugeth_err("%s: Failed to init uccf.", __func__);
2185                 return -ENOMEM;
2186         }
2187
2188         /* read the number of risc engines, update the riscTx and riscRx
2189          * if there are 4 riscs in QE
2190          */
2191         if (qe_get_num_of_risc() == 4) {
2192                 ug_info->riscTx = QE_RISC_ALLOCATION_FOUR_RISCS;
2193                 ug_info->riscRx = QE_RISC_ALLOCATION_FOUR_RISCS;
2194         }
2195
2196         ugeth->ug_regs = ioremap(uf_info->regs, sizeof(*ugeth->ug_regs));
2197         if (!ugeth->ug_regs) {
2198                 if (netif_msg_probe(ugeth))
2199                         ugeth_err("%s: Failed to ioremap regs.", __func__);
2200                 return -ENOMEM;
2201         }
2202
2203         skb_queue_head_init(&ugeth->rx_recycle);
2204
2205         return 0;
2206 }
2207
2208 static int ucc_geth_startup(struct ucc_geth_private *ugeth)
2209 {
2210         struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
2211         struct ucc_geth_init_pram __iomem *p_init_enet_pram;
2212         struct ucc_fast_private *uccf;
2213         struct ucc_geth_info *ug_info;
2214         struct ucc_fast_info *uf_info;
2215         struct ucc_fast __iomem *uf_regs;
2216         struct ucc_geth __iomem *ug_regs;
2217         int ret_val = -EINVAL;
2218         u32 remoder = UCC_GETH_REMODER_INIT;
2219         u32 init_enet_pram_offset, cecr_subblock, command;
2220         u32 ifstat, i, j, size, l2qt, l3qt, length;
2221         u16 temoder = UCC_GETH_TEMODER_INIT;
2222         u16 test;
2223         u8 function_code = 0;
2224         u8 __iomem *bd;
2225         u8 __iomem *endOfRing;
2226         u8 numThreadsRxNumerical, numThreadsTxNumerical;
2227
2228         ugeth_vdbg("%s: IN", __func__);
2229         uccf = ugeth->uccf;
2230         ug_info = ugeth->ug_info;
2231         uf_info = &ug_info->uf_info;
2232         uf_regs = uccf->uf_regs;
2233         ug_regs = ugeth->ug_regs;
2234
2235         switch (ug_info->numThreadsRx) {
2236         case UCC_GETH_NUM_OF_THREADS_1:
2237                 numThreadsRxNumerical = 1;
2238                 break;
2239         case UCC_GETH_NUM_OF_THREADS_2:
2240                 numThreadsRxNumerical = 2;
2241                 break;
2242         case UCC_GETH_NUM_OF_THREADS_4:
2243                 numThreadsRxNumerical = 4;
2244                 break;
2245         case UCC_GETH_NUM_OF_THREADS_6:
2246                 numThreadsRxNumerical = 6;
2247                 break;
2248         case UCC_GETH_NUM_OF_THREADS_8:
2249                 numThreadsRxNumerical = 8;
2250                 break;
2251         default:
2252                 if (netif_msg_ifup(ugeth))
2253                         ugeth_err("%s: Bad number of Rx threads value.",
2254                                         __func__);
2255                 return -EINVAL;
2256                 break;
2257         }
2258
2259         switch (ug_info->numThreadsTx) {
2260         case UCC_GETH_NUM_OF_THREADS_1:
2261                 numThreadsTxNumerical = 1;
2262                 break;
2263         case UCC_GETH_NUM_OF_THREADS_2:
2264                 numThreadsTxNumerical = 2;
2265                 break;
2266         case UCC_GETH_NUM_OF_THREADS_4:
2267                 numThreadsTxNumerical = 4;
2268                 break;
2269         case UCC_GETH_NUM_OF_THREADS_6:
2270                 numThreadsTxNumerical = 6;
2271                 break;
2272         case UCC_GETH_NUM_OF_THREADS_8:
2273                 numThreadsTxNumerical = 8;
2274                 break;
2275         default:
2276                 if (netif_msg_ifup(ugeth))
2277                         ugeth_err("%s: Bad number of Tx threads value.",
2278                                         __func__);
2279                 return -EINVAL;
2280                 break;
2281         }
2282
2283         /* Calculate rx_extended_features */
2284         ugeth->rx_non_dynamic_extended_features = ug_info->ipCheckSumCheck ||
2285             ug_info->ipAddressAlignment ||
2286             (ug_info->numStationAddresses !=
2287              UCC_GETH_NUM_OF_STATION_ADDRESSES_1);
2288
2289         ugeth->rx_extended_features = ugeth->rx_non_dynamic_extended_features ||
2290                 (ug_info->vlanOperationTagged != UCC_GETH_VLAN_OPERATION_TAGGED_NOP) ||
2291                 (ug_info->vlanOperationNonTagged !=
2292                  UCC_GETH_VLAN_OPERATION_NON_TAGGED_NOP);
2293
2294         init_default_reg_vals(&uf_regs->upsmr,
2295                               &ug_regs->maccfg1, &ug_regs->maccfg2);
2296
2297         /*                    Set UPSMR                      */
2298         /* For more details see the hardware spec.           */
2299         init_rx_parameters(ug_info->bro,
2300                            ug_info->rsh, ug_info->pro, &uf_regs->upsmr);
2301
2302         /* We're going to ignore other registers for now, */
2303         /* except as needed to get up and running         */
2304
2305         /*                    Set MACCFG1                    */
2306         /* For more details see the hardware spec.           */
2307         init_flow_control_params(ug_info->aufc,
2308                                  ug_info->receiveFlowControl,
2309                                  ug_info->transmitFlowControl,
2310                                  ug_info->pausePeriod,
2311                                  ug_info->extensionField,
2312                                  &uf_regs->upsmr,
2313                                  &ug_regs->uempr, &ug_regs->maccfg1);
2314
2315         setbits32(&ug_regs->maccfg1, MACCFG1_ENABLE_RX | MACCFG1_ENABLE_TX);
2316
2317         /*                    Set IPGIFG                     */
2318         /* For more details see the hardware spec.           */
2319         ret_val = init_inter_frame_gap_params(ug_info->nonBackToBackIfgPart1,
2320                                               ug_info->nonBackToBackIfgPart2,
2321                                               ug_info->
2322                                               miminumInterFrameGapEnforcement,
2323                                               ug_info->backToBackInterFrameGap,
2324                                               &ug_regs->ipgifg);
2325         if (ret_val != 0) {
2326                 if (netif_msg_ifup(ugeth))
2327                         ugeth_err("%s: IPGIFG initialization parameter too large.",
2328                                   __func__);
2329                 return ret_val;
2330         }
2331
2332         /*                    Set HAFDUP                     */
2333         /* For more details see the hardware spec.           */
2334         ret_val = init_half_duplex_params(ug_info->altBeb,
2335                                           ug_info->backPressureNoBackoff,
2336                                           ug_info->noBackoff,
2337                                           ug_info->excessDefer,
2338                                           ug_info->altBebTruncation,
2339                                           ug_info->maxRetransmission,
2340                                           ug_info->collisionWindow,
2341                                           &ug_regs->hafdup);
2342         if (ret_val != 0) {
2343                 if (netif_msg_ifup(ugeth))
2344                         ugeth_err("%s: Half Duplex initialization parameter too large.",
2345                           __func__);
2346                 return ret_val;
2347         }
2348
2349         /*                    Set IFSTAT                     */
2350         /* For more details see the hardware spec.           */
2351         /* Read only - resets upon read                      */
2352         ifstat = in_be32(&ug_regs->ifstat);
2353
2354         /*                    Clear UEMPR                    */
2355         /* For more details see the hardware spec.           */
2356         out_be32(&ug_regs->uempr, 0);
2357
2358         /*                    Set UESCR                      */
2359         /* For more details see the hardware spec.           */
2360         init_hw_statistics_gathering_mode((ug_info->statisticsMode &
2361                                 UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE),
2362                                 0, &uf_regs->upsmr, &ug_regs->uescr);
2363
2364         /* Allocate Tx bds */
2365         for (j = 0; j < ug_info->numQueuesTx; j++) {
2366                 /* Allocate in multiple of
2367                    UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT,
2368                    according to spec */
2369                 length = ((ug_info->bdRingLenTx[j] * sizeof(struct qe_bd))
2370                           / UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT)
2371                     * UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
2372                 if ((ug_info->bdRingLenTx[j] * sizeof(struct qe_bd)) %
2373                     UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT)
2374                         length += UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
2375                 if (uf_info->bd_mem_part == MEM_PART_SYSTEM) {
2376                         u32 align = 4;
2377                         if (UCC_GETH_TX_BD_RING_ALIGNMENT > 4)
2378                                 align = UCC_GETH_TX_BD_RING_ALIGNMENT;
2379                         ugeth->tx_bd_ring_offset[j] =
2380                                 (u32) kmalloc((u32) (length + align), GFP_KERNEL);
2381
2382                         if (ugeth->tx_bd_ring_offset[j] != 0)
2383                                 ugeth->p_tx_bd_ring[j] =
2384                                         (u8 __iomem *)((ugeth->tx_bd_ring_offset[j] +
2385                                         align) & ~(align - 1));
2386                 } else if (uf_info->bd_mem_part == MEM_PART_MURAM) {
2387                         ugeth->tx_bd_ring_offset[j] =
2388                             qe_muram_alloc(length,
2389                                            UCC_GETH_TX_BD_RING_ALIGNMENT);
2390                         if (!IS_ERR_VALUE(ugeth->tx_bd_ring_offset[j]))
2391                                 ugeth->p_tx_bd_ring[j] =
2392                                     (u8 __iomem *) qe_muram_addr(ugeth->
2393                                                          tx_bd_ring_offset[j]);
2394                 }
2395                 if (!ugeth->p_tx_bd_ring[j]) {
2396                         if (netif_msg_ifup(ugeth))
2397                                 ugeth_err
2398                                     ("%s: Can not allocate memory for Tx bd rings.",
2399                                      __func__);
2400                         return -ENOMEM;
2401                 }
2402                 /* Zero unused end of bd ring, according to spec */
2403                 memset_io((void __iomem *)(ugeth->p_tx_bd_ring[j] +
2404                        ug_info->bdRingLenTx[j] * sizeof(struct qe_bd)), 0,
2405                        length - ug_info->bdRingLenTx[j] * sizeof(struct qe_bd));
2406         }
2407
2408         /* Allocate Rx bds */
2409         for (j = 0; j < ug_info->numQueuesRx; j++) {
2410                 length = ug_info->bdRingLenRx[j] * sizeof(struct qe_bd);
2411                 if (uf_info->bd_mem_part == MEM_PART_SYSTEM) {
2412                         u32 align = 4;
2413                         if (UCC_GETH_RX_BD_RING_ALIGNMENT > 4)
2414                                 align = UCC_GETH_RX_BD_RING_ALIGNMENT;
2415                         ugeth->rx_bd_ring_offset[j] =
2416                                 (u32) kmalloc((u32) (length + align), GFP_KERNEL);
2417                         if (ugeth->rx_bd_ring_offset[j] != 0)
2418                                 ugeth->p_rx_bd_ring[j] =
2419                                         (u8 __iomem *)((ugeth->rx_bd_ring_offset[j] +
2420                                         align) & ~(align - 1));
2421                 } else if (uf_info->bd_mem_part == MEM_PART_MURAM) {
2422                         ugeth->rx_bd_ring_offset[j] =
2423                             qe_muram_alloc(length,
2424                                            UCC_GETH_RX_BD_RING_ALIGNMENT);
2425                         if (!IS_ERR_VALUE(ugeth->rx_bd_ring_offset[j]))
2426                                 ugeth->p_rx_bd_ring[j] =
2427                                     (u8 __iomem *) qe_muram_addr(ugeth->
2428                                                          rx_bd_ring_offset[j]);
2429                 }
2430                 if (!ugeth->p_rx_bd_ring[j]) {
2431                         if (netif_msg_ifup(ugeth))
2432                                 ugeth_err
2433                                     ("%s: Can not allocate memory for Rx bd rings.",
2434                                      __func__);
2435                         return -ENOMEM;
2436                 }
2437         }
2438
2439         /* Init Tx bds */
2440         for (j = 0; j < ug_info->numQueuesTx; j++) {
2441                 /* Setup the skbuff rings */
2442                 ugeth->tx_skbuff[j] = kmalloc(sizeof(struct sk_buff *) *
2443                                               ugeth->ug_info->bdRingLenTx[j],
2444                                               GFP_KERNEL);
2445
2446                 if (ugeth->tx_skbuff[j] == NULL) {
2447                         if (netif_msg_ifup(ugeth))
2448                                 ugeth_err("%s: Could not allocate tx_skbuff",
2449                                           __func__);
2450                         return -ENOMEM;
2451                 }
2452
2453                 for (i = 0; i < ugeth->ug_info->bdRingLenTx[j]; i++)
2454                         ugeth->tx_skbuff[j][i] = NULL;
2455
2456                 ugeth->skb_curtx[j] = ugeth->skb_dirtytx[j] = 0;
2457                 bd = ugeth->confBd[j] = ugeth->txBd[j] = ugeth->p_tx_bd_ring[j];
2458                 for (i = 0; i < ug_info->bdRingLenTx[j]; i++) {
2459                         /* clear bd buffer */
2460                         out_be32(&((struct qe_bd __iomem *)bd)->buf, 0);
2461                         /* set bd status and length */
2462                         out_be32((u32 __iomem *)bd, 0);
2463                         bd += sizeof(struct qe_bd);
2464                 }
2465                 bd -= sizeof(struct qe_bd);
2466                 /* set bd status and length */
2467                 out_be32((u32 __iomem *)bd, T_W); /* for last BD set Wrap bit */
2468         }
2469
2470         /* Init Rx bds */
2471         for (j = 0; j < ug_info->numQueuesRx; j++) {
2472                 /* Setup the skbuff rings */
2473                 ugeth->rx_skbuff[j] = kmalloc(sizeof(struct sk_buff *) *
2474                                               ugeth->ug_info->bdRingLenRx[j],
2475                                               GFP_KERNEL);
2476
2477                 if (ugeth->rx_skbuff[j] == NULL) {
2478                         if (netif_msg_ifup(ugeth))
2479                                 ugeth_err("%s: Could not allocate rx_skbuff",
2480                                           __func__);
2481                         return -ENOMEM;
2482                 }
2483
2484                 for (i = 0; i < ugeth->ug_info->bdRingLenRx[j]; i++)
2485                         ugeth->rx_skbuff[j][i] = NULL;
2486
2487                 ugeth->skb_currx[j] = 0;
2488                 bd = ugeth->rxBd[j] = ugeth->p_rx_bd_ring[j];
2489                 for (i = 0; i < ug_info->bdRingLenRx[j]; i++) {
2490                         /* set bd status and length */
2491                         out_be32((u32 __iomem *)bd, R_I);
2492                         /* clear bd buffer */
2493                         out_be32(&((struct qe_bd __iomem *)bd)->buf, 0);
2494                         bd += sizeof(struct qe_bd);
2495                 }
2496                 bd -= sizeof(struct qe_bd);
2497                 /* set bd status and length */
2498                 out_be32((u32 __iomem *)bd, R_W); /* for last BD set Wrap bit */
2499         }
2500
2501         /*
2502          * Global PRAM
2503          */
2504         /* Tx global PRAM */
2505         /* Allocate global tx parameter RAM page */
2506         ugeth->tx_glbl_pram_offset =
2507             qe_muram_alloc(sizeof(struct ucc_geth_tx_global_pram),
2508                            UCC_GETH_TX_GLOBAL_PRAM_ALIGNMENT);
2509         if (IS_ERR_VALUE(ugeth->tx_glbl_pram_offset)) {
2510                 if (netif_msg_ifup(ugeth))
2511                         ugeth_err
2512                             ("%s: Can not allocate DPRAM memory for p_tx_glbl_pram.",
2513                              __func__);
2514                 return -ENOMEM;
2515         }
2516         ugeth->p_tx_glbl_pram =
2517             (struct ucc_geth_tx_global_pram __iomem *) qe_muram_addr(ugeth->
2518                                                         tx_glbl_pram_offset);
2519         /* Zero out p_tx_glbl_pram */
2520         memset_io((void __iomem *)ugeth->p_tx_glbl_pram, 0, sizeof(struct ucc_geth_tx_global_pram));
2521
2522         /* Fill global PRAM */
2523
2524         /* TQPTR */
2525         /* Size varies with number of Tx threads */
2526         ugeth->thread_dat_tx_offset =
2527             qe_muram_alloc(numThreadsTxNumerical *
2528                            sizeof(struct ucc_geth_thread_data_tx) +
2529                            32 * (numThreadsTxNumerical == 1),
2530                            UCC_GETH_THREAD_DATA_ALIGNMENT);
2531         if (IS_ERR_VALUE(ugeth->thread_dat_tx_offset)) {
2532                 if (netif_msg_ifup(ugeth))
2533                         ugeth_err
2534                             ("%s: Can not allocate DPRAM memory for p_thread_data_tx.",
2535                              __func__);
2536                 return -ENOMEM;
2537         }
2538
2539         ugeth->p_thread_data_tx =
2540             (struct ucc_geth_thread_data_tx __iomem *) qe_muram_addr(ugeth->
2541                                                         thread_dat_tx_offset);
2542         out_be32(&ugeth->p_tx_glbl_pram->tqptr, ugeth->thread_dat_tx_offset);
2543
2544         /* vtagtable */
2545         for (i = 0; i < UCC_GETH_TX_VTAG_TABLE_ENTRY_MAX; i++)
2546                 out_be32(&ugeth->p_tx_glbl_pram->vtagtable[i],
2547                          ug_info->vtagtable[i]);
2548
2549         /* iphoffset */
2550         for (i = 0; i < TX_IP_OFFSET_ENTRY_MAX; i++)
2551                 out_8(&ugeth->p_tx_glbl_pram->iphoffset[i],
2552                                 ug_info->iphoffset[i]);
2553
2554         /* SQPTR */
2555         /* Size varies with number of Tx queues */
2556         ugeth->send_q_mem_reg_offset =
2557             qe_muram_alloc(ug_info->numQueuesTx *
2558                            sizeof(struct ucc_geth_send_queue_qd),
2559                            UCC_GETH_SEND_QUEUE_QUEUE_DESCRIPTOR_ALIGNMENT);
2560         if (IS_ERR_VALUE(ugeth->send_q_mem_reg_offset)) {
2561                 if (netif_msg_ifup(ugeth))
2562                         ugeth_err
2563                             ("%s: Can not allocate DPRAM memory for p_send_q_mem_reg.",
2564                              __func__);
2565                 return -ENOMEM;
2566         }
2567
2568         ugeth->p_send_q_mem_reg =
2569             (struct ucc_geth_send_queue_mem_region __iomem *) qe_muram_addr(ugeth->
2570                         send_q_mem_reg_offset);
2571         out_be32(&ugeth->p_tx_glbl_pram->sqptr, ugeth->send_q_mem_reg_offset);
2572
2573         /* Setup the table */
2574         /* Assume BD rings are already established */
2575         for (i = 0; i < ug_info->numQueuesTx; i++) {
2576                 endOfRing =
2577                     ugeth->p_tx_bd_ring[i] + (ug_info->bdRingLenTx[i] -
2578                                               1) * sizeof(struct qe_bd);
2579                 if (ugeth->ug_info->uf_info.bd_mem_part == MEM_PART_SYSTEM) {
2580                         out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].bd_ring_base,
2581                                  (u32) virt_to_phys(ugeth->p_tx_bd_ring[i]));
2582                         out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].
2583                                  last_bd_completed_address,
2584                                  (u32) virt_to_phys(endOfRing));
2585                 } else if (ugeth->ug_info->uf_info.bd_mem_part ==
2586                            MEM_PART_MURAM) {
2587                         out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].bd_ring_base,
2588                                  (u32) immrbar_virt_to_phys(ugeth->
2589                                                             p_tx_bd_ring[i]));
2590                         out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].
2591                                  last_bd_completed_address,
2592                                  (u32) immrbar_virt_to_phys(endOfRing));
2593                 }
2594         }
2595
2596         /* schedulerbasepointer */
2597
2598         if (ug_info->numQueuesTx > 1) {
2599         /* scheduler exists only if more than 1 tx queue */
2600                 ugeth->scheduler_offset =
2601                     qe_muram_alloc(sizeof(struct ucc_geth_scheduler),
2602                                    UCC_GETH_SCHEDULER_ALIGNMENT);
2603                 if (IS_ERR_VALUE(ugeth->scheduler_offset)) {
2604                         if (netif_msg_ifup(ugeth))
2605                                 ugeth_err
2606                                  ("%s: Can not allocate DPRAM memory for p_scheduler.",
2607                                      __func__);
2608                         return -ENOMEM;
2609                 }
2610
2611                 ugeth->p_scheduler =
2612                     (struct ucc_geth_scheduler __iomem *) qe_muram_addr(ugeth->
2613                                                            scheduler_offset);
2614                 out_be32(&ugeth->p_tx_glbl_pram->schedulerbasepointer,
2615                          ugeth->scheduler_offset);
2616                 /* Zero out p_scheduler */
2617                 memset_io((void __iomem *)ugeth->p_scheduler, 0, sizeof(struct ucc_geth_scheduler));
2618
2619                 /* Set values in scheduler */
2620                 out_be32(&ugeth->p_scheduler->mblinterval,
2621                          ug_info->mblinterval);
2622                 out_be16(&ugeth->p_scheduler->nortsrbytetime,
2623                          ug_info->nortsrbytetime);
2624                 out_8(&ugeth->p_scheduler->fracsiz, ug_info->fracsiz);
2625                 out_8(&ugeth->p_scheduler->strictpriorityq,
2626                                 ug_info->strictpriorityq);
2627                 out_8(&ugeth->p_scheduler->txasap, ug_info->txasap);
2628                 out_8(&ugeth->p_scheduler->extrabw, ug_info->extrabw);
2629                 for (i = 0; i < NUM_TX_QUEUES; i++)
2630                         out_8(&ugeth->p_scheduler->weightfactor[i],
2631                             ug_info->weightfactor[i]);
2632
2633                 /* Set pointers to cpucount registers in scheduler */
2634                 ugeth->p_cpucount[0] = &(ugeth->p_scheduler->cpucount0);
2635                 ugeth->p_cpucount[1] = &(ugeth->p_scheduler->cpucount1);
2636                 ugeth->p_cpucount[2] = &(ugeth->p_scheduler->cpucount2);
2637                 ugeth->p_cpucount[3] = &(ugeth->p_scheduler->cpucount3);
2638                 ugeth->p_cpucount[4] = &(ugeth->p_scheduler->cpucount4);
2639                 ugeth->p_cpucount[5] = &(ugeth->p_scheduler->cpucount5);
2640                 ugeth->p_cpucount[6] = &(ugeth->p_scheduler->cpucount6);
2641                 ugeth->p_cpucount[7] = &(ugeth->p_scheduler->cpucount7);
2642         }
2643
2644         /* schedulerbasepointer */
2645         /* TxRMON_PTR (statistics) */
2646         if (ug_info->
2647             statisticsMode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) {
2648                 ugeth->tx_fw_statistics_pram_offset =
2649                     qe_muram_alloc(sizeof
2650                                    (struct ucc_geth_tx_firmware_statistics_pram),
2651                                    UCC_GETH_TX_STATISTICS_ALIGNMENT);
2652                 if (IS_ERR_VALUE(ugeth->tx_fw_statistics_pram_offset)) {
2653                         if (netif_msg_ifup(ugeth))
2654                                 ugeth_err
2655                                     ("%s: Can not allocate DPRAM memory for"
2656                                         " p_tx_fw_statistics_pram.",
2657                                         __func__);
2658                         return -ENOMEM;
2659                 }
2660                 ugeth->p_tx_fw_statistics_pram =
2661                     (struct ucc_geth_tx_firmware_statistics_pram __iomem *)
2662                     qe_muram_addr(ugeth->tx_fw_statistics_pram_offset);
2663                 /* Zero out p_tx_fw_statistics_pram */
2664                 memset_io((void __iomem *)ugeth->p_tx_fw_statistics_pram,
2665                        0, sizeof(struct ucc_geth_tx_firmware_statistics_pram));
2666         }
2667
2668         /* temoder */
2669         /* Already has speed set */
2670
2671         if (ug_info->numQueuesTx > 1)
2672                 temoder |= TEMODER_SCHEDULER_ENABLE;
2673         if (ug_info->ipCheckSumGenerate)
2674                 temoder |= TEMODER_IP_CHECKSUM_GENERATE;
2675         temoder |= ((ug_info->numQueuesTx - 1) << TEMODER_NUM_OF_QUEUES_SHIFT);
2676         out_be16(&ugeth->p_tx_glbl_pram->temoder, temoder);
2677
2678         test = in_be16(&ugeth->p_tx_glbl_pram->temoder);
2679
2680         /* Function code register value to be used later */
2681         function_code = UCC_BMR_BO_BE | UCC_BMR_GBL;
2682         /* Required for QE */
2683
2684         /* function code register */
2685         out_be32(&ugeth->p_tx_glbl_pram->tstate, ((u32) function_code) << 24);
2686
2687         /* Rx global PRAM */
2688         /* Allocate global rx parameter RAM page */
2689         ugeth->rx_glbl_pram_offset =
2690             qe_muram_alloc(sizeof(struct ucc_geth_rx_global_pram),
2691                            UCC_GETH_RX_GLOBAL_PRAM_ALIGNMENT);
2692         if (IS_ERR_VALUE(ugeth->rx_glbl_pram_offset)) {
2693                 if (netif_msg_ifup(ugeth))
2694                         ugeth_err
2695                             ("%s: Can not allocate DPRAM memory for p_rx_glbl_pram.",
2696                              __func__);
2697                 return -ENOMEM;
2698         }
2699         ugeth->p_rx_glbl_pram =
2700             (struct ucc_geth_rx_global_pram __iomem *) qe_muram_addr(ugeth->
2701                                                         rx_glbl_pram_offset);
2702         /* Zero out p_rx_glbl_pram */
2703         memset_io((void __iomem *)ugeth->p_rx_glbl_pram, 0, sizeof(struct ucc_geth_rx_global_pram));
2704
2705         /* Fill global PRAM */
2706
2707         /* RQPTR */
2708         /* Size varies with number of Rx threads */
2709         ugeth->thread_dat_rx_offset =
2710             qe_muram_alloc(numThreadsRxNumerical *
2711                            sizeof(struct ucc_geth_thread_data_rx),
2712                            UCC_GETH_THREAD_DATA_ALIGNMENT);
2713         if (IS_ERR_VALUE(ugeth->thread_dat_rx_offset)) {
2714                 if (netif_msg_ifup(ugeth))
2715                         ugeth_err
2716                             ("%s: Can not allocate DPRAM memory for p_thread_data_rx.",
2717                              __func__);
2718                 return -ENOMEM;
2719         }
2720
2721         ugeth->p_thread_data_rx =
2722             (struct ucc_geth_thread_data_rx __iomem *) qe_muram_addr(ugeth->
2723                                                         thread_dat_rx_offset);
2724         out_be32(&ugeth->p_rx_glbl_pram->rqptr, ugeth->thread_dat_rx_offset);
2725
2726         /* typeorlen */
2727         out_be16(&ugeth->p_rx_glbl_pram->typeorlen, ug_info->typeorlen);
2728
2729         /* rxrmonbaseptr (statistics) */
2730         if (ug_info->
2731             statisticsMode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX) {
2732                 ugeth->rx_fw_statistics_pram_offset =
2733                     qe_muram_alloc(sizeof
2734                                    (struct ucc_geth_rx_firmware_statistics_pram),
2735                                    UCC_GETH_RX_STATISTICS_ALIGNMENT);
2736                 if (IS_ERR_VALUE(ugeth->rx_fw_statistics_pram_offset)) {
2737                         if (netif_msg_ifup(ugeth))
2738                                 ugeth_err
2739                                         ("%s: Can not allocate DPRAM memory for"
2740                                         " p_rx_fw_statistics_pram.", __func__);
2741                         return -ENOMEM;
2742                 }
2743                 ugeth->p_rx_fw_statistics_pram =
2744                     (struct ucc_geth_rx_firmware_statistics_pram __iomem *)
2745                     qe_muram_addr(ugeth->rx_fw_statistics_pram_offset);
2746                 /* Zero out p_rx_fw_statistics_pram */
2747                 memset_io((void __iomem *)ugeth->p_rx_fw_statistics_pram, 0,
2748                        sizeof(struct ucc_geth_rx_firmware_statistics_pram));
2749         }
2750
2751         /* intCoalescingPtr */
2752
2753         /* Size varies with number of Rx queues */
2754         ugeth->rx_irq_coalescing_tbl_offset =
2755             qe_muram_alloc(ug_info->numQueuesRx *
2756                            sizeof(struct ucc_geth_rx_interrupt_coalescing_entry)
2757                            + 4, UCC_GETH_RX_INTERRUPT_COALESCING_ALIGNMENT);
2758         if (IS_ERR_VALUE(ugeth->rx_irq_coalescing_tbl_offset)) {
2759                 if (netif_msg_ifup(ugeth))
2760                         ugeth_err
2761                             ("%s: Can not allocate DPRAM memory for"
2762                                 " p_rx_irq_coalescing_tbl.", __func__);
2763                 return -ENOMEM;
2764         }
2765
2766         ugeth->p_rx_irq_coalescing_tbl =
2767             (struct ucc_geth_rx_interrupt_coalescing_table __iomem *)
2768             qe_muram_addr(ugeth->rx_irq_coalescing_tbl_offset);
2769         out_be32(&ugeth->p_rx_glbl_pram->intcoalescingptr,
2770                  ugeth->rx_irq_coalescing_tbl_offset);
2771
2772         /* Fill interrupt coalescing table */
2773         for (i = 0; i < ug_info->numQueuesRx; i++) {
2774                 out_be32(&ugeth->p_rx_irq_coalescing_tbl->coalescingentry[i].
2775                          interruptcoalescingmaxvalue,
2776                          ug_info->interruptcoalescingmaxvalue[i]);
2777                 out_be32(&ugeth->p_rx_irq_coalescing_tbl->coalescingentry[i].
2778                          interruptcoalescingcounter,
2779                          ug_info->interruptcoalescingmaxvalue[i]);
2780         }
2781
2782         /* MRBLR */
2783         init_max_rx_buff_len(uf_info->max_rx_buf_length,
2784                              &ugeth->p_rx_glbl_pram->mrblr);
2785         /* MFLR */
2786         out_be16(&ugeth->p_rx_glbl_pram->mflr, ug_info->maxFrameLength);
2787         /* MINFLR */
2788         init_min_frame_len(ug_info->minFrameLength,
2789                            &ugeth->p_rx_glbl_pram->minflr,
2790                            &ugeth->p_rx_glbl_pram->mrblr);
2791         /* MAXD1 */
2792         out_be16(&ugeth->p_rx_glbl_pram->maxd1, ug_info->maxD1Length);
2793         /* MAXD2 */
2794         out_be16(&ugeth->p_rx_glbl_pram->maxd2, ug_info->maxD2Length);
2795
2796         /* l2qt */
2797         l2qt = 0;
2798         for (i = 0; i < UCC_GETH_VLAN_PRIORITY_MAX; i++)
2799                 l2qt |= (ug_info->l2qt[i] << (28 - 4 * i));
2800         out_be32(&ugeth->p_rx_glbl_pram->l2qt, l2qt);
2801
2802         /* l3qt */
2803         for (j = 0; j < UCC_GETH_IP_PRIORITY_MAX; j += 8) {
2804                 l3qt = 0;
2805                 for (i = 0; i < 8; i++)
2806                         l3qt |= (ug_info->l3qt[j + i] << (28 - 4 * i));
2807                 out_be32(&ugeth->p_rx_glbl_pram->l3qt[j/8], l3qt);
2808         }
2809
2810         /* vlantype */
2811         out_be16(&ugeth->p_rx_glbl_pram->vlantype, ug_info->vlantype);
2812
2813         /* vlantci */
2814         out_be16(&ugeth->p_rx_glbl_pram->vlantci, ug_info->vlantci);
2815
2816         /* ecamptr */
2817         out_be32(&ugeth->p_rx_glbl_pram->ecamptr, ug_info->ecamptr);
2818
2819         /* RBDQPTR */
2820         /* Size varies with number of Rx queues */
2821         ugeth->rx_bd_qs_tbl_offset =
2822             qe_muram_alloc(ug_info->numQueuesRx *
2823                            (sizeof(struct ucc_geth_rx_bd_queues_entry) +
2824                             sizeof(struct ucc_geth_rx_prefetched_bds)),
2825                            UCC_GETH_RX_BD_QUEUES_ALIGNMENT);
2826         if (IS_ERR_VALUE(ugeth->rx_bd_qs_tbl_offset)) {
2827                 if (netif_msg_ifup(ugeth))
2828                         ugeth_err
2829                             ("%s: Can not allocate DPRAM memory for p_rx_bd_qs_tbl.",
2830                              __func__);
2831                 return -ENOMEM;
2832         }
2833
2834         ugeth->p_rx_bd_qs_tbl =
2835             (struct ucc_geth_rx_bd_queues_entry __iomem *) qe_muram_addr(ugeth->
2836                                     rx_bd_qs_tbl_offset);
2837         out_be32(&ugeth->p_rx_glbl_pram->rbdqptr, ugeth->rx_bd_qs_tbl_offset);
2838         /* Zero out p_rx_bd_qs_tbl */
2839         memset_io((void __iomem *)ugeth->p_rx_bd_qs_tbl,
2840                0,
2841                ug_info->numQueuesRx * (sizeof(struct ucc_geth_rx_bd_queues_entry) +
2842                                        sizeof(struct ucc_geth_rx_prefetched_bds)));
2843
2844         /* Setup the table */
2845         /* Assume BD rings are already established */
2846         for (i = 0; i < ug_info->numQueuesRx; i++) {
2847                 if (ugeth->ug_info->uf_info.bd_mem_part == MEM_PART_SYSTEM) {
2848                         out_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
2849                                  (u32) virt_to_phys(ugeth->p_rx_bd_ring[i]));
2850                 } else if (ugeth->ug_info->uf_info.bd_mem_part ==
2851                            MEM_PART_MURAM) {
2852                         out_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
2853                                  (u32) immrbar_virt_to_phys(ugeth->
2854                                                             p_rx_bd_ring[i]));
2855                 }
2856                 /* rest of fields handled by QE */
2857         }
2858
2859         /* remoder */
2860         /* Already has speed set */
2861
2862         if (ugeth->rx_extended_features)
2863                 remoder |= REMODER_RX_EXTENDED_FEATURES;
2864         if (ug_info->rxExtendedFiltering)
2865                 remoder |= REMODER_RX_EXTENDED_FILTERING;
2866         if (ug_info->dynamicMaxFrameLength)
2867                 remoder |= REMODER_DYNAMIC_MAX_FRAME_LENGTH;
2868         if (ug_info->dynamicMinFrameLength)
2869                 remoder |= REMODER_DYNAMIC_MIN_FRAME_LENGTH;
2870         remoder |=
2871             ug_info->vlanOperationTagged << REMODER_VLAN_OPERATION_TAGGED_SHIFT;
2872         remoder |=
2873             ug_info->
2874             vlanOperationNonTagged << REMODER_VLAN_OPERATION_NON_TAGGED_SHIFT;
2875         remoder |= ug_info->rxQoSMode << REMODER_RX_QOS_MODE_SHIFT;
2876         remoder |= ((ug_info->numQueuesRx - 1) << REMODER_NUM_OF_QUEUES_SHIFT);
2877         if (ug_info->ipCheckSumCheck)
2878                 remoder |= REMODER_IP_CHECKSUM_CHECK;
2879         if (ug_info->ipAddressAlignment)
2880                 remoder |= REMODER_IP_ADDRESS_ALIGNMENT;
2881         out_be32(&ugeth->p_rx_glbl_pram->remoder, remoder);
2882
2883         /* Note that this function must be called */
2884         /* ONLY AFTER p_tx_fw_statistics_pram */
2885         /* andp_UccGethRxFirmwareStatisticsPram are allocated ! */
2886         init_firmware_statistics_gathering_mode((ug_info->
2887                 statisticsMode &
2888                 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX),
2889                 (ug_info->statisticsMode &
2890                 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX),
2891                 &ugeth->p_tx_glbl_pram->txrmonbaseptr,
2892                 ugeth->tx_fw_statistics_pram_offset,
2893                 &ugeth->p_rx_glbl_pram->rxrmonbaseptr,
2894                 ugeth->rx_fw_statistics_pram_offset,
2895                 &ugeth->p_tx_glbl_pram->temoder,
2896                 &ugeth->p_rx_glbl_pram->remoder);
2897
2898         /* function code register */
2899         out_8(&ugeth->p_rx_glbl_pram->rstate, function_code);
2900
2901         /* initialize extended filtering */
2902         if (ug_info->rxExtendedFiltering) {
2903                 if (!ug_info->extendedFilteringChainPointer) {
2904                         if (netif_msg_ifup(ugeth))
2905                                 ugeth_err("%s: Null Extended Filtering Chain Pointer.",
2906                                           __func__);
2907                         return -EINVAL;
2908                 }
2909
2910                 /* Allocate memory for extended filtering Mode Global
2911                 Parameters */
2912                 ugeth->exf_glbl_param_offset =
2913                     qe_muram_alloc(sizeof(struct ucc_geth_exf_global_pram),
2914                 UCC_GETH_RX_EXTENDED_FILTERING_GLOBAL_PARAMETERS_ALIGNMENT);
2915                 if (IS_ERR_VALUE(ugeth->exf_glbl_param_offset)) {
2916                         if (netif_msg_ifup(ugeth))
2917                                 ugeth_err
2918                                         ("%s: Can not allocate DPRAM memory for"
2919                                         " p_exf_glbl_param.", __func__);
2920                         return -ENOMEM;
2921                 }
2922
2923                 ugeth->p_exf_glbl_param =
2924                     (struct ucc_geth_exf_global_pram __iomem *) qe_muram_addr(ugeth->
2925                                  exf_glbl_param_offset);
2926                 out_be32(&ugeth->p_rx_glbl_pram->exfGlobalParam,
2927                          ugeth->exf_glbl_param_offset);
2928                 out_be32(&ugeth->p_exf_glbl_param->l2pcdptr,
2929                          (u32) ug_info->extendedFilteringChainPointer);
2930
2931         } else {                /* initialize 82xx style address filtering */
2932
2933                 /* Init individual address recognition registers to disabled */
2934
2935                 for (j = 0; j < NUM_OF_PADDRS; j++)
2936                         ugeth_82xx_filtering_clear_addr_in_paddr(ugeth, (u8) j);
2937
2938                 p_82xx_addr_filt =
2939                     (struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->
2940                     p_rx_glbl_pram->addressfiltering;
2941
2942                 ugeth_82xx_filtering_clear_all_addr_in_hash(ugeth,
2943                         ENET_ADDR_TYPE_GROUP);
2944                 ugeth_82xx_filtering_clear_all_addr_in_hash(ugeth,
2945                         ENET_ADDR_TYPE_INDIVIDUAL);
2946         }
2947
2948         /*
2949          * Initialize UCC at QE level
2950          */
2951
2952         command = QE_INIT_TX_RX;
2953
2954         /* Allocate shadow InitEnet command parameter structure.
2955          * This is needed because after the InitEnet command is executed,
2956          * the structure in DPRAM is released, because DPRAM is a premium
2957          * resource.
2958          * This shadow structure keeps a copy of what was done so that the
2959          * allocated resources can be released when the channel is freed.
2960          */
2961         if (!(ugeth->p_init_enet_param_shadow =
2962               kmalloc(sizeof(struct ucc_geth_init_pram), GFP_KERNEL))) {
2963                 if (netif_msg_ifup(ugeth))
2964                         ugeth_err
2965                             ("%s: Can not allocate memory for"
2966                                 " p_UccInitEnetParamShadows.", __func__);
2967                 return -ENOMEM;
2968         }
2969         /* Zero out *p_init_enet_param_shadow */
2970         memset((char *)ugeth->p_init_enet_param_shadow,
2971                0, sizeof(struct ucc_geth_init_pram));
2972
2973         /* Fill shadow InitEnet command parameter structure */
2974
2975         ugeth->p_init_enet_param_shadow->resinit1 =
2976             ENET_INIT_PARAM_MAGIC_RES_INIT1;
2977         ugeth->p_init_enet_param_shadow->resinit2 =
2978             ENET_INIT_PARAM_MAGIC_RES_INIT2;
2979         ugeth->p_init_enet_param_shadow->resinit3 =
2980             ENET_INIT_PARAM_MAGIC_RES_INIT3;
2981         ugeth->p_init_enet_param_shadow->resinit4 =
2982             ENET_INIT_PARAM_MAGIC_RES_INIT4;
2983         ugeth->p_init_enet_param_shadow->resinit5 =
2984             ENET_INIT_PARAM_MAGIC_RES_INIT5;
2985         ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
2986             ((u32) ug_info->numThreadsRx) << ENET_INIT_PARAM_RGF_SHIFT;
2987         ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
2988             ((u32) ug_info->numThreadsTx) << ENET_INIT_PARAM_TGF_SHIFT;
2989
2990         ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
2991             ugeth->rx_glbl_pram_offset | ug_info->riscRx;
2992         if ((ug_info->largestexternallookupkeysize !=
2993              QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_NONE) &&
2994             (ug_info->largestexternallookupkeysize !=
2995              QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_8_BYTES) &&
2996             (ug_info->largestexternallookupkeysize !=
2997              QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_16_BYTES)) {
2998                 if (netif_msg_ifup(ugeth))
2999                         ugeth_err("%s: Invalid largest External Lookup Key Size.",
3000                                   __func__);
3001                 return -EINVAL;
3002         }
3003         ugeth->p_init_enet_param_shadow->largestexternallookupkeysize =
3004             ug_info->largestexternallookupkeysize;
3005         size = sizeof(struct ucc_geth_thread_rx_pram);
3006         if (ug_info->rxExtendedFiltering) {
3007                 size += THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING;
3008                 if (ug_info->largestexternallookupkeysize ==
3009                     QE_FLTR_TABLE_LOOKUP_KEY_SIZE_8_BYTES)
3010                         size +=
3011                             THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_8;
3012                 if (ug_info->largestexternallookupkeysize ==
3013                     QE_FLTR_TABLE_LOOKUP_KEY_SIZE_16_BYTES)
3014                         size +=
3015                             THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_16;
3016         }
3017
3018         if ((ret_val = fill_init_enet_entries(ugeth, &(ugeth->
3019                 p_init_enet_param_shadow->rxthread[0]),
3020                 (u8) (numThreadsRxNumerical + 1)
3021                 /* Rx needs one extra for terminator */
3022                 , size, UCC_GETH_THREAD_RX_PRAM_ALIGNMENT,
3023                 ug_info->riscRx, 1)) != 0) {
3024                 if (netif_msg_ifup(ugeth))
3025                                 ugeth_err("%s: Can not fill p_init_enet_param_shadow.",
3026                                         __func__);
3027                 return ret_val;
3028         }
3029
3030         ugeth->p_init_enet_param_shadow->txglobal =
3031             ugeth->tx_glbl_pram_offset | ug_info->riscTx;
3032         if ((ret_val =
3033              fill_init_enet_entries(ugeth,
3034                                     &(ugeth->p_init_enet_param_shadow->
3035                                       txthread[0]), numThreadsTxNumerical,
3036                                     sizeof(struct ucc_geth_thread_tx_pram),
3037                                     UCC_GETH_THREAD_TX_PRAM_ALIGNMENT,
3038                                     ug_info->riscTx, 0)) != 0) {
3039                 if (netif_msg_ifup(ugeth))
3040                         ugeth_err("%s: Can not fill p_init_enet_param_shadow.",
3041                                   __func__);
3042                 return ret_val;
3043         }
3044
3045         /* Load Rx bds with buffers */
3046         for (i = 0; i < ug_info->numQueuesRx; i++) {
3047                 if ((ret_val = rx_bd_buffer_set(ugeth, (u8) i)) != 0) {
3048                         if (netif_msg_ifup(ugeth))
3049                                 ugeth_err("%s: Can not fill Rx bds with buffers.",
3050                                           __func__);
3051                         return ret_val;
3052                 }
3053         }
3054
3055         /* Allocate InitEnet command parameter structure */
3056         init_enet_pram_offset = qe_muram_alloc(sizeof(struct ucc_geth_init_pram), 4);
3057         if (IS_ERR_VALUE(init_enet_pram_offset)) {
3058                 if (netif_msg_ifup(ugeth))
3059                         ugeth_err
3060                             ("%s: Can not allocate DPRAM memory for p_init_enet_pram.",
3061                              __func__);
3062                 return -ENOMEM;
3063         }
3064         p_init_enet_pram =
3065             (struct ucc_geth_init_pram __iomem *) qe_muram_addr(init_enet_pram_offset);
3066
3067         /* Copy shadow InitEnet command parameter structure into PRAM */
3068         out_8(&p_init_enet_pram->resinit1,
3069                         ugeth->p_init_enet_param_shadow->resinit1);
3070         out_8(&p_init_enet_pram->resinit2,
3071                         ugeth->p_init_enet_param_shadow->resinit2);
3072         out_8(&p_init_enet_pram->resinit3,
3073                         ugeth->p_init_enet_param_shadow->resinit3);
3074         out_8(&p_init_enet_pram->resinit4,
3075                         ugeth->p_init_enet_param_shadow->resinit4);
3076         out_be16(&p_init_enet_pram->resinit5,
3077                  ugeth->p_init_enet_param_shadow->resinit5);
3078         out_8(&p_init_enet_pram->largestexternallookupkeysize,
3079             ugeth->p_init_enet_param_shadow->largestexternallookupkeysize);
3080         out_be32(&p_init_enet_pram->rgftgfrxglobal,
3081                  ugeth->p_init_enet_param_shadow->rgftgfrxglobal);
3082         for (i = 0; i < ENET_INIT_PARAM_MAX_ENTRIES_RX; i++)
3083                 out_be32(&p_init_enet_pram->rxthread[i],
3084                          ugeth->p_init_enet_param_shadow->rxthread[i]);
3085         out_be32(&p_init_enet_pram->txglobal,
3086                  ugeth->p_init_enet_param_shadow->txglobal);
3087         for (i = 0; i < ENET_INIT_PARAM_MAX_ENTRIES_TX; i++)
3088                 out_be32(&p_init_enet_pram->txthread[i],
3089                          ugeth->p_init_enet_param_shadow->txthread[i]);
3090
3091         /* Issue QE command */
3092         cecr_subblock =
3093             ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
3094         qe_issue_cmd(command, cecr_subblock, QE_CR_PROTOCOL_ETHERNET,
3095                      init_enet_pram_offset);
3096
3097         /* Free InitEnet command parameter */
3098         qe_muram_free(init_enet_pram_offset);
3099
3100         return 0;
3101 }
3102
3103 /* This is called by the kernel when a frame is ready for transmission. */
3104 /* It is pointed to by the dev->hard_start_xmit function pointer */
3105 static int ucc_geth_start_xmit(struct sk_buff *skb, struct net_device *dev)
3106 {
3107         struct ucc_geth_private *ugeth = netdev_priv(dev);
3108 #ifdef CONFIG_UGETH_TX_ON_DEMAND
3109         struct ucc_fast_private *uccf;
3110 #endif
3111         u8 __iomem *bd;                 /* BD pointer */
3112         u32 bd_status;
3113         u8 txQ = 0;
3114         unsigned long flags;
3115
3116         ugeth_vdbg("%s: IN", __func__);
3117
3118         spin_lock_irqsave(&ugeth->lock, flags);
3119
3120         dev->stats.tx_bytes += skb->len;
3121
3122         /* Start from the next BD that should be filled */
3123         bd = ugeth->txBd[txQ];
3124         bd_status = in_be32((u32 __iomem *)bd);
3125         /* Save the skb pointer so we can free it later */
3126         ugeth->tx_skbuff[txQ][ugeth->skb_curtx[txQ]] = skb;
3127
3128         /* Update the current skb pointer (wrapping if this was the last) */
3129         ugeth->skb_curtx[txQ] =
3130             (ugeth->skb_curtx[txQ] +
3131              1) & TX_RING_MOD_MASK(ugeth->ug_info->bdRingLenTx[txQ]);
3132
3133         /* set up the buffer descriptor */
3134         out_be32(&((struct qe_bd __iomem *)bd)->buf,
3135                       dma_map_single(ugeth->dev, skb->data,
3136                               skb->len, DMA_TO_DEVICE));
3137
3138         /* printk(KERN_DEBUG"skb->data is 0x%x\n",skb->data); */
3139
3140         bd_status = (bd_status & T_W) | T_R | T_I | T_L | skb->len;
3141
3142         /* set bd status and length */
3143         out_be32((u32 __iomem *)bd, bd_status);
3144
3145         dev->trans_start = jiffies;
3146
3147         /* Move to next BD in the ring */
3148         if (!(bd_status & T_W))
3149                 bd += sizeof(struct qe_bd);
3150         else
3151                 bd = ugeth->p_tx_bd_ring[txQ];
3152
3153         /* If the next BD still needs to be cleaned up, then the bds
3154            are full.  We need to tell the kernel to stop sending us stuff. */
3155         if (bd == ugeth->confBd[txQ]) {
3156                 if (!netif_queue_stopped(dev))
3157                         netif_stop_queue(dev);
3158         }
3159
3160         ugeth->txBd[txQ] = bd;
3161
3162         if (ugeth->p_scheduler) {
3163                 ugeth->cpucount[txQ]++;
3164                 /* Indicate to QE that there are more Tx bds ready for
3165                 transmission */
3166                 /* This is done by writing a running counter of the bd
3167                 count to the scheduler PRAM. */
3168                 out_be16(ugeth->p_cpucount[txQ], ugeth->cpucount[txQ]);
3169         }
3170
3171 #ifdef CONFIG_UGETH_TX_ON_DEMAND
3172         uccf = ugeth->uccf;
3173         out_be16(uccf->p_utodr, UCC_FAST_TOD);
3174 #endif
3175         spin_unlock_irqrestore(&ugeth->lock, flags);
3176
3177         return NETDEV_TX_OK;
3178 }
3179
3180 static int ucc_geth_rx(struct ucc_geth_private *ugeth, u8 rxQ, int rx_work_limit)
3181 {
3182         struct sk_buff *skb;
3183         u8 __iomem *bd;
3184         u16 length, howmany = 0;
3185         u32 bd_status;
3186         u8 *bdBuffer;
3187         struct net_device *dev;
3188
3189         ugeth_vdbg("%s: IN", __func__);
3190
3191         dev = ugeth->ndev;
3192
3193         /* collect received buffers */
3194         bd = ugeth->rxBd[rxQ];
3195
3196         bd_status = in_be32((u32 __iomem *)bd);
3197
3198         /* while there are received buffers and BD is full (~R_E) */
3199         while (!((bd_status & (R_E)) || (--rx_work_limit < 0))) {
3200                 bdBuffer = (u8 *) in_be32(&((struct qe_bd __iomem *)bd)->buf);
3201                 length = (u16) ((bd_status & BD_LENGTH_MASK) - 4);
3202                 skb = ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]];
3203
3204                 /* determine whether buffer is first, last, first and last
3205                 (single buffer frame) or middle (not first and not last) */
3206                 if (!skb ||
3207                     (!(bd_status & (R_F | R_L))) ||
3208                     (bd_status & R_ERRORS_FATAL)) {
3209                         if (netif_msg_rx_err(ugeth))
3210                                 ugeth_err("%s, %d: ERROR!!! skb - 0x%08x",
3211                                            __func__, __LINE__, (u32) skb);
3212                         if (skb) {
3213                                 skb->data = skb->head + NET_SKB_PAD;
3214                                 __skb_queue_head(&ugeth->rx_recycle, skb);
3215                         }
3216
3217                         ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]] = NULL;
3218                         dev->stats.rx_dropped++;
3219                 } else {
3220                         dev->stats.rx_packets++;
3221                         howmany++;
3222
3223                         /* Prep the skb for the packet */
3224                         skb_put(skb, length);
3225
3226                         /* Tell the skb what kind of packet this is */
3227                         skb->protocol = eth_type_trans(skb, ugeth->ndev);
3228
3229                         dev->stats.rx_bytes += length;
3230                         /* Send the packet up the stack */
3231                         netif_receive_skb(skb);
3232                 }
3233
3234                 skb = get_new_skb(ugeth, bd);
3235                 if (!skb) {
3236                         if (netif_msg_rx_err(ugeth))
3237                                 ugeth_warn("%s: No Rx Data Buffer", __func__);
3238                         dev->stats.rx_dropped++;
3239                         break;
3240                 }
3241
3242                 ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]] = skb;
3243
3244                 /* update to point at the next skb */
3245                 ugeth->skb_currx[rxQ] =
3246                     (ugeth->skb_currx[rxQ] +
3247                      1) & RX_RING_MOD_MASK(ugeth->ug_info->bdRingLenRx[rxQ]);
3248
3249                 if (bd_status & R_W)
3250                         bd = ugeth->p_rx_bd_ring[rxQ];
3251                 else
3252                         bd += sizeof(struct qe_bd);
3253
3254                 bd_status = in_be32((u32 __iomem *)bd);
3255         }
3256
3257         ugeth->rxBd[rxQ] = bd;
3258         return howmany;
3259 }
3260
3261 static int ucc_geth_tx(struct net_device *dev, u8 txQ)
3262 {
3263         /* Start from the next BD that should be filled */
3264         struct ucc_geth_private *ugeth = netdev_priv(dev);
3265         u8 __iomem *bd;         /* BD pointer */
3266         u32 bd_status;
3267
3268         bd = ugeth->confBd[txQ];
3269         bd_status = in_be32((u32 __iomem *)bd);
3270
3271         /* Normal processing. */
3272         while ((bd_status & T_R) == 0) {
3273                 struct sk_buff *skb;
3274
3275                 /* BD contains already transmitted buffer.   */
3276                 /* Handle the transmitted buffer and release */
3277                 /* the BD to be used with the current frame  */
3278
3279                 if (bd == ugeth->txBd[txQ]) /* queue empty? */
3280                         break;
3281
3282                 dev->stats.tx_packets++;
3283
3284                 skb = ugeth->tx_skbuff[txQ][ugeth->skb_dirtytx[txQ]];
3285
3286                 if (skb_queue_len(&ugeth->rx_recycle) < RX_BD_RING_LEN &&
3287                              skb_recycle_check(skb,
3288                                     ugeth->ug_info->uf_info.max_rx_buf_length +
3289                                     UCC_GETH_RX_DATA_BUF_ALIGNMENT))
3290                         __skb_queue_head(&ugeth->rx_recycle, skb);
3291                 else
3292                         dev_kfree_skb(skb);
3293
3294                 ugeth->tx_skbuff[txQ][ugeth->skb_dirtytx[txQ]] = NULL;
3295                 ugeth->skb_dirtytx[txQ] =
3296                     (ugeth->skb_dirtytx[txQ] +
3297                      1) & TX_RING_MOD_MASK(ugeth->ug_info->bdRingLenTx[txQ]);
3298
3299                 /* We freed a buffer, so now we can restart transmission */
3300                 if (netif_queue_stopped(dev))
3301                         netif_wake_queue(dev);
3302
3303                 /* Advance the confirmation BD pointer */
3304                 if (!(bd_status & T_W))
3305                         bd += sizeof(struct qe_bd);
3306                 else
3307                         bd = ugeth->p_tx_bd_ring[txQ];
3308                 bd_status = in_be32((u32 __iomem *)bd);
3309         }
3310         ugeth->confBd[txQ] = bd;
3311         return 0;
3312 }
3313
3314 static int ucc_geth_poll(struct napi_struct *napi, int budget)
3315 {
3316         struct ucc_geth_private *ugeth = container_of(napi, struct ucc_geth_private, napi);
3317         struct ucc_geth_info *ug_info;
3318         int howmany, i;
3319
3320         ug_info = ugeth->ug_info;
3321
3322         /* Tx event processing */
3323         spin_lock(&ugeth->lock);
3324         for (i = 0; i < ug_info->numQueuesTx; i++)
3325                 ucc_geth_tx(ugeth->ndev, i);
3326         spin_unlock(&ugeth->lock);
3327
3328         howmany = 0;
3329         for (i = 0; i < ug_info->numQueuesRx; i++)
3330                 howmany += ucc_geth_rx(ugeth, i, budget - howmany);
3331
3332         if (howmany < budget) {
3333                 napi_complete(napi);
3334                 setbits32(ugeth->uccf->p_uccm, UCCE_RX_EVENTS | UCCE_TX_EVENTS);
3335         }
3336
3337         return howmany;
3338 }
3339
3340 static irqreturn_t ucc_geth_irq_handler(int irq, void *info)
3341 {
3342         struct net_device *dev = info;
3343         struct ucc_geth_private *ugeth = netdev_priv(dev);
3344         struct ucc_fast_private *uccf;
3345         struct ucc_geth_info *ug_info;
3346         register u32 ucce;
3347         register u32 uccm;
3348
3349         ugeth_vdbg("%s: IN", __func__);
3350
3351         uccf = ugeth->uccf;
3352         ug_info = ugeth->ug_info;
3353
3354         /* read and clear events */
3355         ucce = (u32) in_be32(uccf->p_ucce);
3356         uccm = (u32) in_be32(uccf->p_uccm);
3357         ucce &= uccm;
3358         out_be32(uccf->p_ucce, ucce);
3359
3360         /* check for receive events that require processing */
3361         if (ucce & (UCCE_RX_EVENTS | UCCE_TX_EVENTS)) {
3362                 if (napi_schedule_prep(&ugeth->napi)) {
3363                         uccm &= ~(UCCE_RX_EVENTS | UCCE_TX_EVENTS);
3364                         out_be32(uccf->p_uccm, uccm);
3365                         __napi_schedule(&ugeth->napi);
3366                 }
3367         }
3368
3369         /* Errors and other events */
3370         if (ucce & UCCE_OTHER) {
3371                 if (ucce & UCC_GETH_UCCE_BSY)
3372                         dev->stats.rx_errors++;
3373                 if (ucce & UCC_GETH_UCCE_TXE)
3374                         dev->stats.tx_errors++;
3375         }
3376
3377         return IRQ_HANDLED;
3378 }
3379
3380 #ifdef CONFIG_NET_POLL_CONTROLLER
3381 /*
3382  * Polling 'interrupt' - used by things like netconsole to send skbs
3383  * without having to re-enable interrupts. It's not called while
3384  * the interrupt routine is executing.
3385  */
3386 static void ucc_netpoll(struct net_device *dev)
3387 {
3388         struct ucc_geth_private *ugeth = netdev_priv(dev);
3389         int irq = ugeth->ug_info->uf_info.irq;
3390
3391         disable_irq(irq);
3392         ucc_geth_irq_handler(irq, dev);
3393         enable_irq(irq);
3394 }
3395 #endif /* CONFIG_NET_POLL_CONTROLLER */
3396
3397 static int ucc_geth_set_mac_addr(struct net_device *dev, void *p)
3398 {
3399         struct ucc_geth_private *ugeth = netdev_priv(dev);
3400         struct sockaddr *addr = p;
3401
3402         if (!is_valid_ether_addr(addr->sa_data))
3403                 return -EADDRNOTAVAIL;
3404
3405         memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
3406
3407         /*
3408          * If device is not running, we will set mac addr register
3409          * when opening the device.
3410          */
3411         if (!netif_running(dev))
3412                 return 0;
3413
3414         spin_lock_irq(&ugeth->lock);
3415         init_mac_station_addr_regs(dev->dev_addr[0],
3416                                    dev->dev_addr[1],
3417                                    dev->dev_addr[2],
3418                                    dev->dev_addr[3],
3419                                    dev->dev_addr[4],
3420                                    dev->dev_addr[5],
3421                                    &ugeth->ug_regs->macstnaddr1,
3422                                    &ugeth->ug_regs->macstnaddr2);
3423         spin_unlock_irq(&ugeth->lock);
3424
3425         return 0;
3426 }
3427
3428 static int ucc_geth_init_mac(struct ucc_geth_private *ugeth)
3429 {
3430         struct net_device *dev = ugeth->ndev;
3431         int err;
3432
3433         err = ucc_struct_init(ugeth);
3434         if (err) {
3435                 if (netif_msg_ifup(ugeth))
3436                         ugeth_err("%s: Cannot configure internal struct, "
3437                                   "aborting.", dev->name);
3438                 goto err;
3439         }
3440
3441         err = ucc_geth_startup(ugeth);
3442         if (err) {
3443                 if (netif_msg_ifup(ugeth))
3444                         ugeth_err("%s: Cannot configure net device, aborting.",
3445                                   dev->name);
3446                 goto err;
3447         }
3448
3449         err = adjust_enet_interface(ugeth);
3450         if (err) {
3451                 if (netif_msg_ifup(ugeth))
3452                         ugeth_err("%s: Cannot configure net device, aborting.",
3453                                   dev->name);
3454                 goto err;
3455         }
3456
3457         /*       Set MACSTNADDR1, MACSTNADDR2                */
3458         /* For more details see the hardware spec.           */
3459         init_mac_station_addr_regs(dev->dev_addr[0],
3460                                    dev->dev_addr[1],
3461                                    dev->dev_addr[2],
3462                                    dev->dev_addr[3],
3463                                    dev->dev_addr[4],
3464                                    dev->dev_addr[5],
3465                                    &ugeth->ug_regs->macstnaddr1,
3466                                    &ugeth->ug_regs->macstnaddr2);
3467
3468         err = ugeth_enable(ugeth, COMM_DIR_RX_AND_TX);
3469         if (err) {
3470                 if (netif_msg_ifup(ugeth))
3471                         ugeth_err("%s: Cannot enable net device, aborting.", dev->name);
3472                 goto err;
3473         }
3474
3475         return 0;
3476 err:
3477         ucc_geth_stop(ugeth);
3478         return err;
3479 }
3480
3481 /* Called when something needs to use the ethernet device */
3482 /* Returns 0 for success. */
3483 static int ucc_geth_open(struct net_device *dev)
3484 {
3485         struct ucc_geth_private *ugeth = netdev_priv(dev);
3486         int err;
3487
3488         ugeth_vdbg("%s: IN", __func__);
3489
3490         /* Test station address */
3491         if (dev->dev_addr[0] & ENET_GROUP_ADDR) {
3492                 if (netif_msg_ifup(ugeth))
3493                         ugeth_err("%s: Multicast address used for station "
3494                                   "address - is this what you wanted?",
3495                                   __func__);
3496                 return -EINVAL;
3497         }
3498
3499         err = init_phy(dev);
3500         if (err) {
3501                 if (netif_msg_ifup(ugeth))
3502                         ugeth_err("%s: Cannot initialize PHY, aborting.",
3503                                   dev->name);
3504                 return err;
3505         }
3506
3507         err = ucc_geth_init_mac(ugeth);
3508         if (err) {
3509                 if (netif_msg_ifup(ugeth))
3510                         ugeth_err("%s: Cannot initialize MAC, aborting.",
3511                                   dev->name);
3512                 goto err;
3513         }
3514
3515         err = request_irq(ugeth->ug_info->uf_info.irq, ucc_geth_irq_handler,
3516                           0, "UCC Geth", dev);
3517         if (err) {
3518                 if (netif_msg_ifup(ugeth))
3519                         ugeth_err("%s: Cannot get IRQ for net device, aborting.",
3520                                   dev->name);
3521                 goto err;
3522         }
3523
3524         phy_start(ugeth->phydev);
3525         napi_enable(&ugeth->napi);
3526         netif_start_queue(dev);
3527
3528         device_set_wakeup_capable(&dev->dev,
3529                         qe_alive_during_sleep() || ugeth->phydev->irq);
3530         device_set_wakeup_enable(&dev->dev, ugeth->wol_en);
3531
3532         return err;
3533
3534 err:
3535         ucc_geth_stop(ugeth);
3536         return err;
3537 }
3538
3539 /* Stops the kernel queue, and halts the controller */
3540 static int ucc_geth_close(struct net_device *dev)
3541 {
3542         struct ucc_geth_private *ugeth = netdev_priv(dev);
3543
3544         ugeth_vdbg("%s: IN", __func__);
3545
3546         napi_disable(&ugeth->napi);
3547
3548         ucc_geth_stop(ugeth);
3549
3550         free_irq(ugeth->ug_info->uf_info.irq, ugeth->ndev);
3551
3552         netif_stop_queue(dev);
3553
3554         return 0;
3555 }
3556
3557 /* Reopen device. This will reset the MAC and PHY. */
3558 static void ucc_geth_timeout_work(struct work_struct *work)
3559 {
3560         struct ucc_geth_private *ugeth;
3561         struct net_device *dev;
3562
3563         ugeth = container_of(work, struct ucc_geth_private, timeout_work);
3564         dev = ugeth->ndev;
3565
3566         ugeth_vdbg("%s: IN", __func__);
3567
3568         dev->stats.tx_errors++;
3569
3570         ugeth_dump_regs(ugeth);
3571
3572         if (dev->flags & IFF_UP) {
3573                 /*
3574                  * Must reset MAC *and* PHY. This is done by reopening
3575                  * the device.
3576                  */
3577                 ucc_geth_close(dev);
3578                 ucc_geth_open(dev);
3579         }
3580
3581         netif_tx_schedule_all(dev);
3582 }
3583
3584 /*
3585  * ucc_geth_timeout gets called when a packet has not been
3586  * transmitted after a set amount of time.
3587  */
3588 static void ucc_geth_timeout(struct net_device *dev)
3589 {
3590         struct ucc_geth_private *ugeth = netdev_priv(dev);
3591
3592         netif_carrier_off(dev);
3593         schedule_work(&ugeth->timeout_work);
3594 }
3595
3596
3597 #ifdef CONFIG_PM
3598
3599 static int ucc_geth_suspend(struct of_device *ofdev, pm_message_t state)
3600 {
3601         struct net_device *ndev = dev_get_drvdata(&ofdev->dev);
3602         struct ucc_geth_private *ugeth = netdev_priv(ndev);
3603
3604         if (!netif_running(ndev))
3605                 return 0;
3606
3607         napi_disable(&ugeth->napi);
3608
3609         /*
3610          * Disable the controller, otherwise we'll wakeup on any network
3611          * activity.
3612          */
3613         ugeth_disable(ugeth, COMM_DIR_RX_AND_TX);
3614
3615         if (ugeth->wol_en & WAKE_MAGIC) {
3616                 setbits32(ugeth->uccf->p_uccm, UCC_GETH_UCCE_MPD);
3617                 setbits32(&ugeth->ug_regs->maccfg2, MACCFG2_MPE);
3618                 ucc_fast_enable(ugeth->uccf, COMM_DIR_RX_AND_TX);
3619         } else if (!(ugeth->wol_en & WAKE_PHY)) {
3620                 phy_stop(ugeth->phydev);
3621         }
3622
3623         return 0;
3624 }
3625
3626 static int ucc_geth_resume(struct of_device *ofdev)
3627 {
3628         struct net_device *ndev = dev_get_drvdata(&ofdev->dev);
3629         struct ucc_geth_private *ugeth = netdev_priv(ndev);
3630         int err;
3631
3632         if (!netif_running(ndev))
3633                 return 0;
3634
3635         if (qe_alive_during_sleep()) {
3636                 if (ugeth->wol_en & WAKE_MAGIC) {
3637                         ucc_fast_disable(ugeth->uccf, COMM_DIR_RX_AND_TX);
3638                         clrbits32(&ugeth->ug_regs->maccfg2, MACCFG2_MPE);
3639                         clrbits32(ugeth->uccf->p_uccm, UCC_GETH_UCCE_MPD);
3640                 }
3641                 ugeth_enable(ugeth, COMM_DIR_RX_AND_TX);
3642         } else {
3643                 /*
3644                  * Full reinitialization is required if QE shuts down
3645                  * during sleep.
3646                  */
3647                 ucc_geth_memclean(ugeth);
3648
3649                 err = ucc_geth_init_mac(ugeth);
3650                 if (err) {
3651                         ugeth_err("%s: Cannot initialize MAC, aborting.",
3652                                   ndev->name);
3653                         return err;
3654                 }
3655         }
3656
3657         ugeth->oldlink = 0;
3658         ugeth->oldspeed = 0;
3659         ugeth->oldduplex = -1;
3660
3661         phy_stop(ugeth->phydev);
3662         phy_start(ugeth->phydev);
3663
3664         napi_enable(&ugeth->napi);
3665         netif_start_queue(ndev);
3666
3667         return 0;
3668 }
3669
3670 #else
3671 #define ucc_geth_suspend NULL
3672 #define ucc_geth_resume NULL
3673 #endif
3674
3675 static phy_interface_t to_phy_interface(const char *phy_connection_type)
3676 {
3677         if (strcasecmp(phy_connection_type, "mii") == 0)
3678                 return PHY_INTERFACE_MODE_MII;
3679         if (strcasecmp(phy_connection_type, "gmii") == 0)
3680                 return PHY_INTERFACE_MODE_GMII;
3681         if (strcasecmp(phy_connection_type, "tbi") == 0)
3682                 return PHY_INTERFACE_MODE_TBI;
3683         if (strcasecmp(phy_connection_type, "rmii") == 0)
3684                 return PHY_INTERFACE_MODE_RMII;
3685         if (strcasecmp(phy_connection_type, "rgmii") == 0)
3686                 return PHY_INTERFACE_MODE_RGMII;
3687         if (strcasecmp(phy_connection_type, "rgmii-id") == 0)
3688                 return PHY_INTERFACE_MODE_RGMII_ID;
3689         if (strcasecmp(phy_connection_type, "rgmii-txid") == 0)
3690                 return PHY_INTERFACE_MODE_RGMII_TXID;
3691         if (strcasecmp(phy_connection_type, "rgmii-rxid") == 0)
3692                 return PHY_INTERFACE_MODE_RGMII_RXID;
3693         if (strcasecmp(phy_connection_type, "rtbi") == 0)
3694                 return PHY_INTERFACE_MODE_RTBI;
3695         if (strcasecmp(phy_connection_type, "sgmii") == 0)
3696                 return PHY_INTERFACE_MODE_SGMII;
3697
3698         return PHY_INTERFACE_MODE_MII;
3699 }
3700
3701 static const struct net_device_ops ucc_geth_netdev_ops = {
3702         .ndo_open               = ucc_geth_open,
3703         .ndo_stop               = ucc_geth_close,
3704         .ndo_start_xmit         = ucc_geth_start_xmit,
3705         .ndo_validate_addr      = eth_validate_addr,
3706         .ndo_set_mac_address    = ucc_geth_set_mac_addr,
3707         .ndo_change_mtu         = eth_change_mtu,
3708         .ndo_set_multicast_list = ucc_geth_set_multi,
3709         .ndo_tx_timeout         = ucc_geth_timeout,
3710 #ifdef CONFIG_NET_POLL_CONTROLLER
3711         .ndo_poll_controller    = ucc_netpoll,
3712 #endif
3713 };
3714
3715 static int ucc_geth_probe(struct of_device* ofdev, const struct of_device_id *match)
3716 {
3717         struct device *device = &ofdev->dev;
3718         struct device_node *np = ofdev->node;
3719         struct net_device *dev = NULL;
3720         struct ucc_geth_private *ugeth = NULL;
3721         struct ucc_geth_info *ug_info;
3722         struct resource res;
3723         int err, ucc_num, max_speed = 0;
3724         const unsigned int *prop;
3725         const char *sprop;
3726         const void *mac_addr;
3727         phy_interface_t phy_interface;
3728         static const int enet_to_speed[] = {
3729                 SPEED_10, SPEED_10, SPEED_10,
3730                 SPEED_100, SPEED_100, SPEED_100,
3731                 SPEED_1000, SPEED_1000, SPEED_1000, SPEED_1000,
3732         };
3733         static const phy_interface_t enet_to_phy_interface[] = {
3734                 PHY_INTERFACE_MODE_MII, PHY_INTERFACE_MODE_RMII,
3735                 PHY_INTERFACE_MODE_RGMII, PHY_INTERFACE_MODE_MII,
3736                 PHY_INTERFACE_MODE_RMII, PHY_INTERFACE_MODE_RGMII,
3737                 PHY_INTERFACE_MODE_GMII, PHY_INTERFACE_MODE_RGMII,
3738                 PHY_INTERFACE_MODE_TBI, PHY_INTERFACE_MODE_RTBI,
3739                 PHY_INTERFACE_MODE_SGMII,
3740         };
3741
3742         ugeth_vdbg("%s: IN", __func__);
3743
3744         prop = of_get_property(np, "cell-index", NULL);
3745         if (!prop) {
3746                 prop = of_get_property(np, "device-id", NULL);
3747                 if (!prop)
3748                         return -ENODEV;
3749         }
3750
3751         ucc_num = *prop - 1;
3752         if ((ucc_num < 0) || (ucc_num > 7))
3753                 return -ENODEV;
3754
3755         ug_info = &ugeth_info[ucc_num];
3756         if (ug_info == NULL) {
3757                 if (netif_msg_probe(&debug))
3758                         ugeth_err("%s: [%d] Missing additional data!",
3759                                         __func__, ucc_num);
3760                 return -ENODEV;
3761         }
3762
3763         ug_info->uf_info.ucc_num = ucc_num;
3764
3765         sprop = of_get_property(np, "rx-clock-name", NULL);
3766         if (sprop) {
3767                 ug_info->uf_info.rx_clock = qe_clock_source(sprop);
3768                 if ((ug_info->uf_info.rx_clock < QE_CLK_NONE) ||
3769                     (ug_info->uf_info.rx_clock > QE_CLK24)) {
3770                         printk(KERN_ERR
3771                                 "ucc_geth: invalid rx-clock-name property\n");
3772                         return -EINVAL;
3773                 }
3774         } else {
3775                 prop = of_get_property(np, "rx-clock", NULL);
3776                 if (!prop) {
3777                         /* If both rx-clock-name and rx-clock are missing,
3778                            we want to tell people to use rx-clock-name. */
3779                         printk(KERN_ERR
3780                                 "ucc_geth: missing rx-clock-name property\n");
3781                         return -EINVAL;
3782                 }
3783                 if ((*prop < QE_CLK_NONE) || (*prop > QE_CLK24)) {
3784                         printk(KERN_ERR
3785                                 "ucc_geth: invalid rx-clock propperty\n");
3786                         return -EINVAL;
3787                 }
3788                 ug_info->uf_info.rx_clock = *prop;
3789         }
3790
3791         sprop = of_get_property(np, "tx-clock-name", NULL);
3792         if (sprop) {
3793                 ug_info->uf_info.tx_clock = qe_clock_source(sprop);
3794                 if ((ug_info->uf_info.tx_clock < QE_CLK_NONE) ||
3795                     (ug_info->uf_info.tx_clock > QE_CLK24)) {
3796                         printk(KERN_ERR
3797                                 "ucc_geth: invalid tx-clock-name property\n");
3798                         return -EINVAL;
3799                 }
3800         } else {
3801                 prop = of_get_property(np, "tx-clock", NULL);
3802                 if (!prop) {
3803                         printk(KERN_ERR
3804                                 "ucc_geth: missing tx-clock-name property\n");
3805                         return -EINVAL;
3806                 }
3807                 if ((*prop < QE_CLK_NONE) || (*prop > QE_CLK24)) {
3808                         printk(KERN_ERR
3809                                 "ucc_geth: invalid tx-clock property\n");
3810                         return -EINVAL;
3811                 }
3812                 ug_info->uf_info.tx_clock = *prop;
3813         }
3814
3815         err = of_address_to_resource(np, 0, &res);
3816         if (err)
3817                 return -EINVAL;
3818
3819         ug_info->uf_info.regs = res.start;
3820         ug_info->uf_info.irq = irq_of_parse_and_map(np, 0);
3821
3822         ug_info->phy_node = of_parse_phandle(np, "phy-handle", 0);
3823
3824         /* Find the TBI PHY node.  If it's not there, we don't support SGMII */
3825         ug_info->tbi_node = of_parse_phandle(np, "tbi-handle", 0);
3826
3827         /* get the phy interface type, or default to MII */
3828         prop = of_get_property(np, "phy-connection-type", NULL);
3829         if (!prop) {
3830                 /* handle interface property present in old trees */
3831                 prop = of_get_property(ug_info->phy_node, "interface", NULL);
3832                 if (prop != NULL) {
3833                         phy_interface = enet_to_phy_interface[*prop];
3834                         max_speed = enet_to_speed[*prop];
3835                 } else
3836                         phy_interface = PHY_INTERFACE_MODE_MII;
3837         } else {
3838                 phy_interface = to_phy_interface((const char *)prop);
3839         }
3840
3841         /* get speed, or derive from PHY interface */
3842         if (max_speed == 0)
3843                 switch (phy_interface) {
3844                 case PHY_INTERFACE_MODE_GMII:
3845                 case PHY_INTERFACE_MODE_RGMII:
3846                 case PHY_INTERFACE_MODE_RGMII_ID:
3847                 case PHY_INTERFACE_MODE_RGMII_RXID:
3848                 case PHY_INTERFACE_MODE_RGMII_TXID:
3849                 case PHY_INTERFACE_MODE_TBI:
3850                 case PHY_INTERFACE_MODE_RTBI:
3851                 case PHY_INTERFACE_MODE_SGMII:
3852                         max_speed = SPEED_1000;
3853                         break;
3854                 default:
3855                         max_speed = SPEED_100;
3856                         break;
3857                 }
3858
3859         if (max_speed == SPEED_1000) {
3860                 /* configure muram FIFOs for gigabit operation */
3861                 ug_info->uf_info.urfs = UCC_GETH_URFS_GIGA_INIT;
3862                 ug_info->uf_info.urfet = UCC_GETH_URFET_GIGA_INIT;
3863                 ug_info->uf_info.urfset = UCC_GETH_URFSET_GIGA_INIT;
3864                 ug_info->uf_info.utfs = UCC_GETH_UTFS_GIGA_INIT;
3865                 ug_info->uf_info.utfet = UCC_GETH_UTFET_GIGA_INIT;
3866                 ug_info->uf_info.utftt = UCC_GETH_UTFTT_GIGA_INIT;
3867                 ug_info->numThreadsTx = UCC_GETH_NUM_OF_THREADS_4;
3868
3869                 /* If QE's snum number is 46 which means we need to support
3870                  * 4 UECs at 1000Base-T simultaneously, we need to allocate
3871                  * more Threads to Rx.
3872                  */
3873                 if (qe_get_num_of_snums() == 46)
3874                         ug_info->numThreadsRx = UCC_GETH_NUM_OF_THREADS_6;
3875                 else
3876                         ug_info->numThreadsRx = UCC_GETH_NUM_OF_THREADS_4;
3877         }
3878
3879         if (netif_msg_probe(&debug))
3880                 printk(KERN_INFO "ucc_geth: UCC%1d at 0x%8x (irq = %d) \n",
3881                         ug_info->uf_info.ucc_num + 1, ug_info->uf_info.regs,
3882                         ug_info->uf_info.irq);
3883
3884         /* Create an ethernet device instance */
3885         dev = alloc_etherdev(sizeof(*ugeth));
3886
3887         if (dev == NULL)
3888                 return -ENOMEM;
3889
3890         ugeth = netdev_priv(dev);
3891         spin_lock_init(&ugeth->lock);
3892
3893         /* Create CQs for hash tables */
3894         INIT_LIST_HEAD(&ugeth->group_hash_q);
3895         INIT_LIST_HEAD(&ugeth->ind_hash_q);
3896
3897         dev_set_drvdata(device, dev);
3898
3899         /* Set the dev->base_addr to the gfar reg region */
3900         dev->base_addr = (unsigned long)(ug_info->uf_info.regs);
3901
3902         SET_NETDEV_DEV(dev, device);
3903
3904         /* Fill in the dev structure */
3905         uec_set_ethtool_ops(dev);
3906         dev->netdev_ops = &ucc_geth_netdev_ops;
3907         dev->watchdog_timeo = TX_TIMEOUT;
3908         INIT_WORK(&ugeth->timeout_work, ucc_geth_timeout_work);
3909         netif_napi_add(dev, &ugeth->napi, ucc_geth_poll, 64);
3910         dev->mtu = 1500;
3911
3912         ugeth->msg_enable = netif_msg_init(debug.msg_enable, UGETH_MSG_DEFAULT);
3913         ugeth->phy_interface = phy_interface;
3914         ugeth->max_speed = max_speed;
3915
3916         err = register_netdev(dev);
3917         if (err) {
3918                 if (netif_msg_probe(ugeth))
3919                         ugeth_err("%s: Cannot register net device, aborting.",
3920                                   dev->name);
3921                 free_netdev(dev);
3922                 return err;
3923         }
3924
3925         mac_addr = of_get_mac_address(np);
3926         if (mac_addr)
3927                 memcpy(dev->dev_addr, mac_addr, 6);
3928
3929         ugeth->ug_info = ug_info;
3930         ugeth->dev = device;
3931         ugeth->ndev = dev;
3932         ugeth->node = np;
3933
3934         return 0;
3935 }
3936
3937 static int ucc_geth_remove(struct of_device* ofdev)
3938 {
3939         struct device *device = &ofdev->dev;
3940         struct net_device *dev = dev_get_drvdata(device);
3941         struct ucc_geth_private *ugeth = netdev_priv(dev);
3942
3943         unregister_netdev(dev);
3944         free_netdev(dev);
3945         ucc_geth_memclean(ugeth);
3946         dev_set_drvdata(device, NULL);
3947
3948         return 0;
3949 }
3950
3951 static struct of_device_id ucc_geth_match[] = {
3952         {
3953                 .type = "network",
3954                 .compatible = "ucc_geth",
3955         },
3956         {},
3957 };
3958
3959 MODULE_DEVICE_TABLE(of, ucc_geth_match);
3960
3961 static struct of_platform_driver ucc_geth_driver = {
3962         .name           = DRV_NAME,
3963         .match_table    = ucc_geth_match,
3964         .probe          = ucc_geth_probe,
3965         .remove         = ucc_geth_remove,
3966         .suspend        = ucc_geth_suspend,
3967         .resume         = ucc_geth_resume,
3968 };
3969
3970 static int __init ucc_geth_init(void)
3971 {
3972         int i, ret;
3973
3974         if (netif_msg_drv(&debug))
3975                 printk(KERN_INFO "ucc_geth: " DRV_DESC "\n");
3976         for (i = 0; i < 8; i++)
3977                 memcpy(&(ugeth_info[i]), &ugeth_primary_info,
3978                        sizeof(ugeth_primary_info));
3979
3980         ret = of_register_platform_driver(&ucc_geth_driver);
3981
3982         return ret;
3983 }
3984
3985 static void __exit ucc_geth_exit(void)
3986 {
3987         of_unregister_platform_driver(&ucc_geth_driver);
3988 }
3989
3990 module_init(ucc_geth_init);
3991 module_exit(ucc_geth_exit);
3992
3993 MODULE_AUTHOR("Freescale Semiconductor, Inc");
3994 MODULE_DESCRIPTION(DRV_DESC);
3995 MODULE_VERSION(DRV_VERSION);
3996 MODULE_LICENSE("GPL");