drivers/net/ethernet/freescale/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
  16 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  17
  18 #include <linux/kernel.h>
  19 #include <linux/init.h>
  20 #include <linux/errno.h>
  21 #include <linux/slab.h>
  22 #include <linux/stddef.h>
  23 #include <linux/module.h>
  24 #include <linux/interrupt.h>
  25 #include <linux/netdevice.h>
  26 #include <linux/etherdevice.h>
  27 #include <linux/skbuff.h>
  28 #include <linux/spinlock.h>
  29 #include <linux/mm.h>
  30 #include <linux/dma-mapping.h>
  31 #include <linux/mii.h>
  32 #include <linux/phy.h>
  33 #include <linux/workqueue.h>
  34 #include <linux/of_mdio.h>
  35 #include <linux/of_net.h>
  36 #include <linux/of_platform.h>
  37
  38 #include <asm/uaccess.h>
  39 #include <asm/irq.h>
  40 #include <asm/io.h>
  41 #include <asm/immap_qe.h>
  42 #include <asm/qe.h>
  43 #include <asm/ucc.h>
  44 #include <asm/ucc_fast.h>
  45 #include <asm/machdep.h>
  46
  47 #include "ucc_geth.h"
  48
  49 #undef DEBUG
  50
  51 #define ugeth_printk(level, format, arg...)  \
  52         printk(level format "\n", ## arg)
  53
  54 #define ugeth_dbg(format, arg...)            \
  55         ugeth_printk(KERN_DEBUG , format , ## arg)
  56
  57 #ifdef UGETH_VERBOSE_DEBUG
  58 #define ugeth_vdbg ugeth_dbg
  59 #else
  60 #define ugeth_vdbg(fmt, args...) do { } while (0)
  61 #endif                          /* UGETH_VERBOSE_DEBUG */
  62 #define UGETH_MSG_DEFAULT       (NETIF_MSG_IFUP << 1 ) - 1
  63
  64
  65 static DEFINE_SPINLOCK(ugeth_lock);
  66
  67 static struct {
  68         u32 msg_enable;
  69 } debug = { -1 };
  70
  71 module_param_named(debug, debug.msg_enable, int, 0);
  72 MODULE_PARM_DESC(debug, "Debug verbosity level (0=none, ..., 0xffff=all)");
  73
  74 static struct ucc_geth_info ugeth_primary_info = {
  75         .uf_info = {
  76                     .bd_mem_part = MEM_PART_SYSTEM,
  77                     .rtsm = UCC_FAST_SEND_IDLES_BETWEEN_FRAMES,
  78                     .max_rx_buf_length = 1536,
  79                     /* adjusted at startup if max-speed 1000 */
  80                     .urfs = UCC_GETH_URFS_INIT,
  81                     .urfet = UCC_GETH_URFET_INIT,
  82                     .urfset = UCC_GETH_URFSET_INIT,
  83                     .utfs = UCC_GETH_UTFS_INIT,
  84                     .utfet = UCC_GETH_UTFET_INIT,
  85                     .utftt = UCC_GETH_UTFTT_INIT,
  86                     .ufpt = 256,
  87                     .mode = UCC_FAST_PROTOCOL_MODE_ETHERNET,
  88                     .ttx_trx = UCC_FAST_GUMR_TRANSPARENT_TTX_TRX_NORMAL,
  89                     .tenc = UCC_FAST_TX_ENCODING_NRZ,
  90                     .renc = UCC_FAST_RX_ENCODING_NRZ,
  91                     .tcrc = UCC_FAST_16_BIT_CRC,
  92                     .synl = UCC_FAST_SYNC_LEN_NOT_USED,
  93                     },
  94         .numQueuesTx = 1,
  95         .numQueuesRx = 1,
  96         .extendedFilteringChainPointer = ((uint32_t) NULL),
  97         .typeorlen = 3072 /*1536 */ ,
  98         .nonBackToBackIfgPart1 = 0x40,
  99         .nonBackToBackIfgPart2 = 0x60,
 100         .miminumInterFrameGapEnforcement = 0x50,
 101         .backToBackInterFrameGap = 0x60,
 102         .mblinterval = 128,
 103         .nortsrbytetime = 5,
 104         .fracsiz = 1,
 105         .strictpriorityq = 0xff,
 106         .altBebTruncation = 0xa,
 107         .excessDefer = 1,
 108         .maxRetransmission = 0xf,
 109         .collisionWindow = 0x37,
 110         .receiveFlowControl = 1,
 111         .transmitFlowControl = 1,
 112         .maxGroupAddrInHash = 4,
 113         .maxIndAddrInHash = 4,
 114         .prel = 7,
 115         .maxFrameLength = 1518+16, /* Add extra bytes for VLANs etc. */
 116         .minFrameLength = 64,
 117         .maxD1Length = 1520+16, /* Add extra bytes for VLANs etc. */
 118         .maxD2Length = 1520+16, /* Add extra bytes for VLANs etc. */
 119         .vlantype = 0x8100,
 120         .ecamptr = ((uint32_t) NULL),
 121         .eventRegMask = UCCE_OTHER,
 122         .pausePeriod = 0xf000,
 123         .interruptcoalescingmaxvalue = {1, 1, 1, 1, 1, 1, 1, 1},
 124         .bdRingLenTx = {
 125                         TX_BD_RING_LEN,
 126                         TX_BD_RING_LEN,
 127                         TX_BD_RING_LEN,
 128                         TX_BD_RING_LEN,
 129                         TX_BD_RING_LEN,
 130                         TX_BD_RING_LEN,
 131                         TX_BD_RING_LEN,
 132                         TX_BD_RING_LEN},
 133
 134         .bdRingLenRx = {
 135                         RX_BD_RING_LEN,
 136                         RX_BD_RING_LEN,
 137                         RX_BD_RING_LEN,
 138                         RX_BD_RING_LEN,
 139                         RX_BD_RING_LEN,
 140                         RX_BD_RING_LEN,
 141                         RX_BD_RING_LEN,
 142                         RX_BD_RING_LEN},
 143
 144         .numStationAddresses = UCC_GETH_NUM_OF_STATION_ADDRESSES_1,
 145         .largestexternallookupkeysize =
 146             QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_NONE,
 147         .statisticsMode = UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE |
 148                 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX |
 149                 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX,
 150         .vlanOperationTagged = UCC_GETH_VLAN_OPERATION_TAGGED_NOP,
 151         .vlanOperationNonTagged = UCC_GETH_VLAN_OPERATION_NON_TAGGED_NOP,
 152         .rxQoSMode = UCC_GETH_QOS_MODE_DEFAULT,
 153         .aufc = UPSMR_AUTOMATIC_FLOW_CONTROL_MODE_NONE,
 154         .padAndCrc = MACCFG2_PAD_AND_CRC_MODE_PAD_AND_CRC,
 155         .numThreadsTx = UCC_GETH_NUM_OF_THREADS_1,
 156         .numThreadsRx = UCC_GETH_NUM_OF_THREADS_1,
 157         .riscTx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
 158         .riscRx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
 159 };
 160
 161 static struct ucc_geth_info ugeth_info[8];
 162
 163 #ifdef DEBUG
 164 static void mem_disp(u8 *addr, int size)
 165 {
 166         u8 *i;
 167         int size16Aling = (size >> 4) << 4;
 168         int size4Aling = (size >> 2) << 2;
 169         int notAlign = 0;
 170         if (size % 16)
 171                 notAlign = 1;
 172
 173         for (i = addr; (u32) i < (u32) addr + size16Aling; i += 16)
 174                 printk("0x%08x: %08x %08x %08x %08x\r\n",
 175                        (u32) i,
 176                        *((u32 *) (i)),
 177                        *((u32 *) (i + 4)),
 178                        *((u32 *) (i + 8)), *((u32 *) (i + 12)));
 179         if (notAlign == 1)
 180                 printk("0x%08x: ", (u32) i);
 181         for (; (u32) i < (u32) addr + size4Aling; i += 4)
 182                 printk("%08x ", *((u32 *) (i)));
 183         for (; (u32) i < (u32) addr + size; i++)
 184                 printk("%02x", *((i)));
 185         if (notAlign == 1)
 186                 printk("\r\n");
 187 }
 188 #endif /* DEBUG */
 189
 190 static struct list_head *dequeue(struct list_head *lh)
 191 {
 192         unsigned long flags;
 193
 194         spin_lock_irqsave(&ugeth_lock, flags);
 195         if (!list_empty(lh)) {
 196                 struct list_head *node = lh->next;
 197                 list_del(node);
 198                 spin_unlock_irqrestore(&ugeth_lock, flags);
 199                 return node;
 200         } else {
 201                 spin_unlock_irqrestore(&ugeth_lock, flags);
 202                 return NULL;
 203         }
 204 }
 205
 206 static struct sk_buff *get_new_skb(struct ucc_geth_private *ugeth,
 207                 u8 __iomem *bd)
 208 {
 209         struct sk_buff *skb;
 210
 211         skb = netdev_alloc_skb(ugeth->ndev,
 212                                ugeth->ug_info->uf_info.max_rx_buf_length +
 213                                UCC_GETH_RX_DATA_BUF_ALIGNMENT);
 214         if (!skb)
 215                 return NULL;
 216
 217         /* We need the data buffer to be aligned properly.  We will reserve
 218          * as many bytes as needed to align the data properly
 219          */
 220         skb_reserve(skb,
 221                     UCC_GETH_RX_DATA_BUF_ALIGNMENT -
 222                     (((unsigned)skb->data) & (UCC_GETH_RX_DATA_BUF_ALIGNMENT -
 223                                               1)));
 224
 225         out_be32(&((struct qe_bd __iomem *)bd)->buf,
 226                       dma_map_single(ugeth->dev,
 227                                      skb->data,
 228                                      ugeth->ug_info->uf_info.max_rx_buf_length +
 229                                      UCC_GETH_RX_DATA_BUF_ALIGNMENT,
 230                                      DMA_FROM_DEVICE));
 231
 232         out_be32((u32 __iomem *)bd,
 233                         (R_E | R_I | (in_be32((u32 __iomem*)bd) & R_W)));
 234
 235         return skb;
 236 }
 237
 238 static int rx_bd_buffer_set(struct ucc_geth_private *ugeth, u8 rxQ)
 239 {
 240         u8 __iomem *bd;
 241         u32 bd_status;
 242         struct sk_buff *skb;
 243         int i;
 244
 245         bd = ugeth->p_rx_bd_ring[rxQ];
 246         i = 0;
 247
 248         do {
 249                 bd_status = in_be32((u32 __iomem *)bd);
 250                 skb = get_new_skb(ugeth, bd);
 251
 252                 if (!skb)       /* If can not allocate data buffer,
 253                                 abort. Cleanup will be elsewhere */
 254                         return -ENOMEM;
 255
 256                 ugeth->rx_skbuff[rxQ][i] = skb;
 257
 258                 /* advance the BD pointer */
 259                 bd += sizeof(struct qe_bd);
 260                 i++;
 261         } while (!(bd_status & R_W));
 262
 263         return 0;
 264 }
 265
 266 static int fill_init_enet_entries(struct ucc_geth_private *ugeth,
 267                                   u32 *p_start,
 268                                   u8 num_entries,
 269                                   u32 thread_size,
 270                                   u32 thread_alignment,
 271                                   unsigned int risc,
 272                                   int skip_page_for_first_entry)
 273 {
 274         u32 init_enet_offset;
 275         u8 i;
 276         int snum;
 277
 278         for (i = 0; i < num_entries; i++) {
 279                 if ((snum = qe_get_snum()) < 0) {
 280                         if (netif_msg_ifup(ugeth))
 281                                 pr_err("Can not get SNUM\n");
 282                         return snum;
 283                 }
 284                 if ((i == 0) && skip_page_for_first_entry)
 285                 /* First entry of Rx does not have page */
 286                         init_enet_offset = 0;
 287                 else {
 288                         init_enet_offset =
 289                             qe_muram_alloc(thread_size, thread_alignment);
 290                         if (IS_ERR_VALUE(init_enet_offset)) {
 291                                 if (netif_msg_ifup(ugeth))
 292                                         pr_err("Can not allocate DPRAM memory\n");
 293                                 qe_put_snum((u8) snum);
 294                                 return -ENOMEM;
 295                         }
 296                 }
 297                 *(p_start++) =
 298                     ((u8) snum << ENET_INIT_PARAM_SNUM_SHIFT) | init_enet_offset
 299                     | risc;
 300         }
 301
 302         return 0;
 303 }
 304
 305 static int return_init_enet_entries(struct ucc_geth_private *ugeth,
 306                                     u32 *p_start,
 307                                     u8 num_entries,
 308                                     unsigned int risc,
 309                                     int skip_page_for_first_entry)
 310 {
 311         u32 init_enet_offset;
 312         u8 i;
 313         int snum;
 314
 315         for (i = 0; i < num_entries; i++) {
 316                 u32 val = *p_start;
 317
 318                 /* Check that this entry was actually valid --
 319                 needed in case failed in allocations */
 320                 if ((val & ENET_INIT_PARAM_RISC_MASK) == risc) {
 321                         snum =
 322                             (u32) (val & ENET_INIT_PARAM_SNUM_MASK) >>
 323                             ENET_INIT_PARAM_SNUM_SHIFT;
 324                         qe_put_snum((u8) snum);
 325                         if (!((i == 0) && skip_page_for_first_entry)) {
 326                         /* First entry of Rx does not have page */
 327                                 init_enet_offset =
 328                                     (val & ENET_INIT_PARAM_PTR_MASK);
 329                                 qe_muram_free(init_enet_offset);
 330                         }
 331                         *p_start++ = 0;
 332                 }
 333         }
 334
 335         return 0;
 336 }
 337
 338 #ifdef DEBUG
 339 static int dump_init_enet_entries(struct ucc_geth_private *ugeth,
 340                                   u32 __iomem *p_start,
 341                                   u8 num_entries,
 342                                   u32 thread_size,
 343                                   unsigned int risc,
 344                                   int skip_page_for_first_entry)
 345 {
 346         u32 init_enet_offset;
 347         u8 i;
 348         int snum;
 349
 350         for (i = 0; i < num_entries; i++) {
 351                 u32 val = in_be32(p_start);
 352
 353                 /* Check that this entry was actually valid --
 354                 needed in case failed in allocations */
 355                 if ((val & ENET_INIT_PARAM_RISC_MASK) == risc) {
 356                         snum =
 357                             (u32) (val & ENET_INIT_PARAM_SNUM_MASK) >>
 358                             ENET_INIT_PARAM_SNUM_SHIFT;
 359                         qe_put_snum((u8) snum);
 360                         if (!((i == 0) && skip_page_for_first_entry)) {
 361                         /* First entry of Rx does not have page */
 362                                 init_enet_offset =
 363                                     (in_be32(p_start) &
 364                                      ENET_INIT_PARAM_PTR_MASK);
 365                                 pr_info("Init enet entry %d:\n", i);
 366                                 pr_info("Base address: 0x%08x\n",
 367                                         (u32)qe_muram_addr(init_enet_offset));
 368                                 mem_disp(qe_muram_addr(init_enet_offset),
 369                                          thread_size);
 370                         }
 371                         p_start++;
 372                 }
 373         }
 374
 375         return 0;
 376 }
 377 #endif
 378
 379 static void put_enet_addr_container(struct enet_addr_container *enet_addr_cont)
 380 {
 381         kfree(enet_addr_cont);
 382 }
 383
 384 static void set_mac_addr(__be16 __iomem *reg, u8 *mac)
 385 {
 386         out_be16(&reg[0], ((u16)mac[5] << 8) | mac[4]);
 387         out_be16(&reg[1], ((u16)mac[3] << 8) | mac[2]);
 388         out_be16(&reg[2], ((u16)mac[1] << 8) | mac[0]);
 389 }
 390
 391 static int hw_clear_addr_in_paddr(struct ucc_geth_private *ugeth, u8 paddr_num)
 392 {
 393         struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
 394
 395         if (paddr_num >= NUM_OF_PADDRS) {
 396                 pr_warn("%s: Invalid paddr_num: %u\n", __func__, paddr_num);
 397                 return -EINVAL;
 398         }
 399
 400         p_82xx_addr_filt =
 401             (struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->p_rx_glbl_pram->
 402             addressfiltering;
 403
 404         /* Writing address ff.ff.ff.ff.ff.ff disables address
 405         recognition for this register */
 406         out_be16(&p_82xx_addr_filt->paddr[paddr_num].h, 0xffff);
 407         out_be16(&p_82xx_addr_filt->paddr[paddr_num].m, 0xffff);
 408         out_be16(&p_82xx_addr_filt->paddr[paddr_num].l, 0xffff);
 409
 410         return 0;
 411 }
 412
 413 static void hw_add_addr_in_hash(struct ucc_geth_private *ugeth,
 414                                 u8 *p_enet_addr)
 415 {
 416         struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
 417         u32 cecr_subblock;
 418
 419         p_82xx_addr_filt =
 420             (struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->p_rx_glbl_pram->
 421             addressfiltering;
 422
 423         cecr_subblock =
 424             ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
 425
 426         /* Ethernet frames are defined in Little Endian mode,
 427         therefore to insert */
 428         /* the address to the hash (Big Endian mode), we reverse the bytes.*/
 429
 430         set_mac_addr(&p_82xx_addr_filt->taddr.h, p_enet_addr);
 431
 432         qe_issue_cmd(QE_SET_GROUP_ADDRESS, cecr_subblock,
 433                      QE_CR_PROTOCOL_ETHERNET, 0);
 434 }
 435
 436 static inline int compare_addr(u8 **addr1, u8 **addr2)
 437 {
 438         return memcmp(addr1, addr2, ETH_ALEN);
 439 }
 440
 441 #ifdef DEBUG
 442 static void get_statistics(struct ucc_geth_private *ugeth,
 443                            struct ucc_geth_tx_firmware_statistics *
 444                            tx_firmware_statistics,
 445                            struct ucc_geth_rx_firmware_statistics *
 446                            rx_firmware_statistics,
 447                            struct ucc_geth_hardware_statistics *hardware_statistics)
 448 {
 449         struct ucc_fast __iomem *uf_regs;
 450         struct ucc_geth __iomem *ug_regs;
 451         struct ucc_geth_tx_firmware_statistics_pram *p_tx_fw_statistics_pram;
 452         struct ucc_geth_rx_firmware_statistics_pram *p_rx_fw_statistics_pram;
 453
 454         ug_regs = ugeth->ug_regs;
 455         uf_regs = (struct ucc_fast __iomem *) ug_regs;
 456         p_tx_fw_statistics_pram = ugeth->p_tx_fw_statistics_pram;
 457         p_rx_fw_statistics_pram = ugeth->p_rx_fw_statistics_pram;
 458
 459         /* Tx firmware only if user handed pointer and driver actually
 460         gathers Tx firmware statistics */
 461         if (tx_firmware_statistics && p_tx_fw_statistics_pram) {
 462                 tx_firmware_statistics->sicoltx =
 463                     in_be32(&p_tx_fw_statistics_pram->sicoltx);
 464                 tx_firmware_statistics->mulcoltx =
 465                     in_be32(&p_tx_fw_statistics_pram->mulcoltx);
 466                 tx_firmware_statistics->latecoltxfr =
 467                     in_be32(&p_tx_fw_statistics_pram->latecoltxfr);
 468                 tx_firmware_statistics->frabortduecol =
 469                     in_be32(&p_tx_fw_statistics_pram->frabortduecol);
 470                 tx_firmware_statistics->frlostinmactxer =
 471                     in_be32(&p_tx_fw_statistics_pram->frlostinmactxer);
 472                 tx_firmware_statistics->carriersenseertx =
 473                     in_be32(&p_tx_fw_statistics_pram->carriersenseertx);
 474                 tx_firmware_statistics->frtxok =
 475                     in_be32(&p_tx_fw_statistics_pram->frtxok);
 476                 tx_firmware_statistics->txfrexcessivedefer =
 477                     in_be32(&p_tx_fw_statistics_pram->txfrexcessivedefer);
 478                 tx_firmware_statistics->txpkts256 =
 479                     in_be32(&p_tx_fw_statistics_pram->txpkts256);
 480                 tx_firmware_statistics->txpkts512 =
 481                     in_be32(&p_tx_fw_statistics_pram->txpkts512);
 482                 tx_firmware_statistics->txpkts1024 =
 483                     in_be32(&p_tx_fw_statistics_pram->txpkts1024);
 484                 tx_firmware_statistics->txpktsjumbo =
 485                     in_be32(&p_tx_fw_statistics_pram->txpktsjumbo);
 486         }
 487
 488         /* Rx firmware only if user handed pointer and driver actually
 489          * gathers Rx firmware statistics */
 490         if (rx_firmware_statistics && p_rx_fw_statistics_pram) {
 491                 int i;
 492                 rx_firmware_statistics->frrxfcser =
 493                     in_be32(&p_rx_fw_statistics_pram->frrxfcser);
 494                 rx_firmware_statistics->fraligner =
 495                     in_be32(&p_rx_fw_statistics_pram->fraligner);
 496                 rx_firmware_statistics->inrangelenrxer =
 497                     in_be32(&p_rx_fw_statistics_pram->inrangelenrxer);
 498                 rx_firmware_statistics->outrangelenrxer =
 499                     in_be32(&p_rx_fw_statistics_pram->outrangelenrxer);
 500                 rx_firmware_statistics->frtoolong =
 501                     in_be32(&p_rx_fw_statistics_pram->frtoolong);
 502                 rx_firmware_statistics->runt =
 503                     in_be32(&p_rx_fw_statistics_pram->runt);
 504                 rx_firmware_statistics->verylongevent =
 505                     in_be32(&p_rx_fw_statistics_pram->verylongevent);
 506                 rx_firmware_statistics->symbolerror =
 507                     in_be32(&p_rx_fw_statistics_pram->symbolerror);
 508                 rx_firmware_statistics->dropbsy =
 509                     in_be32(&p_rx_fw_statistics_pram->dropbsy);
 510                 for (i = 0; i < 0x8; i++)
 511                         rx_firmware_statistics->res0[i] =
 512                             p_rx_fw_statistics_pram->res0[i];
 513                 rx_firmware_statistics->mismatchdrop =
 514                     in_be32(&p_rx_fw_statistics_pram->mismatchdrop);
 515                 rx_firmware_statistics->underpkts =
 516                     in_be32(&p_rx_fw_statistics_pram->underpkts);
 517                 rx_firmware_statistics->pkts256 =
 518                     in_be32(&p_rx_fw_statistics_pram->pkts256);
 519                 rx_firmware_statistics->pkts512 =
 520                     in_be32(&p_rx_fw_statistics_pram->pkts512);
 521                 rx_firmware_statistics->pkts1024 =
 522                     in_be32(&p_rx_fw_statistics_pram->pkts1024);
 523                 rx_firmware_statistics->pktsjumbo =
 524                     in_be32(&p_rx_fw_statistics_pram->pktsjumbo);
 525                 rx_firmware_statistics->frlossinmacer =
 526                     in_be32(&p_rx_fw_statistics_pram->frlossinmacer);
 527                 rx_firmware_statistics->pausefr =
 528                     in_be32(&p_rx_fw_statistics_pram->pausefr);
 529                 for (i = 0; i < 0x4; i++)
 530                         rx_firmware_statistics->res1[i] =
 531                             p_rx_fw_statistics_pram->res1[i];
 532                 rx_firmware_statistics->removevlan =
 533                     in_be32(&p_rx_fw_statistics_pram->removevlan);
 534                 rx_firmware_statistics->replacevlan =
 535                     in_be32(&p_rx_fw_statistics_pram->replacevlan);
 536                 rx_firmware_statistics->insertvlan =
 537                     in_be32(&p_rx_fw_statistics_pram->insertvlan);
 538         }
 539
 540         /* Hardware only if user handed pointer and driver actually
 541         gathers hardware statistics */
 542         if (hardware_statistics &&
 543             (in_be32(&uf_regs->upsmr) & UCC_GETH_UPSMR_HSE)) {
 544                 hardware_statistics->tx64 = in_be32(&ug_regs->tx64);
 545                 hardware_statistics->tx127 = in_be32(&ug_regs->tx127);
 546                 hardware_statistics->tx255 = in_be32(&ug_regs->tx255);
 547                 hardware_statistics->rx64 = in_be32(&ug_regs->rx64);
 548                 hardware_statistics->rx127 = in_be32(&ug_regs->rx127);
 549                 hardware_statistics->rx255 = in_be32(&ug_regs->rx255);
 550                 hardware_statistics->txok = in_be32(&ug_regs->txok);
 551                 hardware_statistics->txcf = in_be16(&ug_regs->txcf);
 552                 hardware_statistics->tmca = in_be32(&ug_regs->tmca);
 553                 hardware_statistics->tbca = in_be32(&ug_regs->tbca);
 554                 hardware_statistics->rxfok = in_be32(&ug_regs->rxfok);
 555                 hardware_statistics->rxbok = in_be32(&ug_regs->rxbok);
 556                 hardware_statistics->rbyt = in_be32(&ug_regs->rbyt);
 557                 hardware_statistics->rmca = in_be32(&ug_regs->rmca);
 558                 hardware_statistics->rbca = in_be32(&ug_regs->rbca);
 559         }
 560 }
 561
 562 static void dump_bds(struct ucc_geth_private *ugeth)
 563 {
 564         int i;
 565         int length;
 566
 567         for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) {
 568                 if (ugeth->p_tx_bd_ring[i]) {
 569                         length =
 570                             (ugeth->ug_info->bdRingLenTx[i] *
 571                              sizeof(struct qe_bd));
 572                         pr_info("TX BDs[%d]\n", i);
 573                         mem_disp(ugeth->p_tx_bd_ring[i], length);
 574                 }
 575         }
 576         for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
 577                 if (ugeth->p_rx_bd_ring[i]) {
 578                         length =
 579                             (ugeth->ug_info->bdRingLenRx[i] *
 580                              sizeof(struct qe_bd));
 581                         pr_info("RX BDs[%d]\n", i);
 582                         mem_disp(ugeth->p_rx_bd_ring[i], length);
 583                 }
 584         }
 585 }
 586
 587 static void dump_regs(struct ucc_geth_private *ugeth)
 588 {
 589         int i;
 590
 591         pr_info("UCC%d Geth registers:\n", ugeth->ug_info->uf_info.ucc_num + 1);
 592         pr_info("Base address: 0x%08x\n", (u32)ugeth->ug_regs);
 593
 594         pr_info("maccfg1    : addr - 0x%08x, val - 0x%08x\n",
 595                 (u32)&ugeth->ug_regs->maccfg1,
 596                 in_be32(&ugeth->ug_regs->maccfg1));
 597         pr_info("maccfg2    : addr - 0x%08x, val - 0x%08x\n",
 598                 (u32)&ugeth->ug_regs->maccfg2,
 599                 in_be32(&ugeth->ug_regs->maccfg2));
 600         pr_info("ipgifg     : addr - 0x%08x, val - 0x%08x\n",
 601                 (u32)&ugeth->ug_regs->ipgifg,
 602                 in_be32(&ugeth->ug_regs->ipgifg));
 603         pr_info("hafdup     : addr - 0x%08x, val - 0x%08x\n",
 604                 (u32)&ugeth->ug_regs->hafdup,
 605                 in_be32(&ugeth->ug_regs->hafdup));
 606         pr_info("ifctl      : addr - 0x%08x, val - 0x%08x\n",
 607                 (u32)&ugeth->ug_regs->ifctl,
 608                 in_be32(&ugeth->ug_regs->ifctl));
 609         pr_info("ifstat     : addr - 0x%08x, val - 0x%08x\n",
 610                 (u32)&ugeth->ug_regs->ifstat,
 611                 in_be32(&ugeth->ug_regs->ifstat));
 612         pr_info("macstnaddr1: addr - 0x%08x, val - 0x%08x\n",
 613                 (u32)&ugeth->ug_regs->macstnaddr1,
 614                 in_be32(&ugeth->ug_regs->macstnaddr1));
 615         pr_info("macstnaddr2: addr - 0x%08x, val - 0x%08x\n",
 616                 (u32)&ugeth->ug_regs->macstnaddr2,
 617                 in_be32(&ugeth->ug_regs->macstnaddr2));
 618         pr_info("uempr      : addr - 0x%08x, val - 0x%08x\n",
 619                 (u32)&ugeth->ug_regs->uempr,
 620                 in_be32(&ugeth->ug_regs->uempr));
 621         pr_info("utbipar    : addr - 0x%08x, val - 0x%08x\n",
 622                 (u32)&ugeth->ug_regs->utbipar,
 623                 in_be32(&ugeth->ug_regs->utbipar));
 624         pr_info("uescr      : addr - 0x%08x, val - 0x%04x\n",
 625                 (u32)&ugeth->ug_regs->uescr,
 626                 in_be16(&ugeth->ug_regs->uescr));
 627         pr_info("tx64       : addr - 0x%08x, val - 0x%08x\n",
 628                 (u32)&ugeth->ug_regs->tx64,
 629                 in_be32(&ugeth->ug_regs->tx64));
 630         pr_info("tx127      : addr - 0x%08x, val - 0x%08x\n",
 631                 (u32)&ugeth->ug_regs->tx127,
 632                 in_be32(&ugeth->ug_regs->tx127));
 633         pr_info("tx255      : addr - 0x%08x, val - 0x%08x\n",
 634                 (u32)&ugeth->ug_regs->tx255,
 635                 in_be32(&ugeth->ug_regs->tx255));
 636         pr_info("rx64       : addr - 0x%08x, val - 0x%08x\n",
 637                 (u32)&ugeth->ug_regs->rx64,
 638                 in_be32(&ugeth->ug_regs->rx64));
 639         pr_info("rx127      : addr - 0x%08x, val - 0x%08x\n",
 640                 (u32)&ugeth->ug_regs->rx127,
 641                 in_be32(&ugeth->ug_regs->rx127));
 642         pr_info("rx255      : addr - 0x%08x, val - 0x%08x\n",
 643                 (u32)&ugeth->ug_regs->rx255,
 644                 in_be32(&ugeth->ug_regs->rx255));
 645         pr_info("txok       : addr - 0x%08x, val - 0x%08x\n",
 646                 (u32)&ugeth->ug_regs->txok,
 647                 in_be32(&ugeth->ug_regs->txok));
 648         pr_info("txcf       : addr - 0x%08x, val - 0x%04x\n",
 649                 (u32)&ugeth->ug_regs->txcf,
 650                 in_be16(&ugeth->ug_regs->txcf));
 651         pr_info("tmca       : addr - 0x%08x, val - 0x%08x\n",
 652                 (u32)&ugeth->ug_regs->tmca,
 653                 in_be32(&ugeth->ug_regs->tmca));
 654         pr_info("tbca       : addr - 0x%08x, val - 0x%08x\n",
 655                 (u32)&ugeth->ug_regs->tbca,
 656                 in_be32(&ugeth->ug_regs->tbca));
 657         pr_info("rxfok      : addr - 0x%08x, val - 0x%08x\n",
 658                 (u32)&ugeth->ug_regs->rxfok,
 659                 in_be32(&ugeth->ug_regs->rxfok));
 660         pr_info("rxbok      : addr - 0x%08x, val - 0x%08x\n",
 661                 (u32)&ugeth->ug_regs->rxbok,
 662                 in_be32(&ugeth->ug_regs->rxbok));
 663         pr_info("rbyt       : addr - 0x%08x, val - 0x%08x\n",
 664                 (u32)&ugeth->ug_regs->rbyt,
 665                 in_be32(&ugeth->ug_regs->rbyt));
 666         pr_info("rmca       : addr - 0x%08x, val - 0x%08x\n",
 667                 (u32)&ugeth->ug_regs->rmca,
 668                 in_be32(&ugeth->ug_regs->rmca));
 669         pr_info("rbca       : addr - 0x%08x, val - 0x%08x\n",
 670                 (u32)&ugeth->ug_regs->rbca,
 671                 in_be32(&ugeth->ug_regs->rbca));
 672         pr_info("scar       : addr - 0x%08x, val - 0x%08x\n",
 673                 (u32)&ugeth->ug_regs->scar,
 674                 in_be32(&ugeth->ug_regs->scar));
 675         pr_info("scam       : addr - 0x%08x, val - 0x%08x\n",
 676                 (u32)&ugeth->ug_regs->scam,
 677                 in_be32(&ugeth->ug_regs->scam));
 678
 679         if (ugeth->p_thread_data_tx) {
 680                 int numThreadsTxNumerical;
 681                 switch (ugeth->ug_info->numThreadsTx) {
 682                 case UCC_GETH_NUM_OF_THREADS_1:
 683                         numThreadsTxNumerical = 1;
 684                         break;
 685                 case UCC_GETH_NUM_OF_THREADS_2:
 686                         numThreadsTxNumerical = 2;
 687                         break;
 688                 case UCC_GETH_NUM_OF_THREADS_4:
 689                         numThreadsTxNumerical = 4;
 690                         break;
 691                 case UCC_GETH_NUM_OF_THREADS_6:
 692                         numThreadsTxNumerical = 6;
 693                         break;
 694                 case UCC_GETH_NUM_OF_THREADS_8:
 695                         numThreadsTxNumerical = 8;
 696                         break;
 697                 default:
 698                         numThreadsTxNumerical = 0;
 699                         break;
 700                 }
 701
 702                 pr_info("Thread data TXs:\n");
 703                 pr_info("Base address: 0x%08x\n",
 704                         (u32)ugeth->p_thread_data_tx);
 705                 for (i = 0; i < numThreadsTxNumerical; i++) {
 706                         pr_info("Thread data TX[%d]:\n", i);
 707                         pr_info("Base address: 0x%08x\n",
 708                                 (u32)&ugeth->p_thread_data_tx[i]);
 709                         mem_disp((u8 *) & ugeth->p_thread_data_tx[i],
 710                                  sizeof(struct ucc_geth_thread_data_tx));
 711                 }
 712         }
 713         if (ugeth->p_thread_data_rx) {
 714                 int numThreadsRxNumerical;
 715                 switch (ugeth->ug_info->numThreadsRx) {
 716                 case UCC_GETH_NUM_OF_THREADS_1:
 717                         numThreadsRxNumerical = 1;
 718                         break;
 719                 case UCC_GETH_NUM_OF_THREADS_2:
 720                         numThreadsRxNumerical = 2;
 721                         break;
 722                 case UCC_GETH_NUM_OF_THREADS_4:
 723                         numThreadsRxNumerical = 4;
 724                         break;
 725                 case UCC_GETH_NUM_OF_THREADS_6:
 726                         numThreadsRxNumerical = 6;
 727                         break;
 728                 case UCC_GETH_NUM_OF_THREADS_8:
 729                         numThreadsRxNumerical = 8;
 730                         break;
 731                 default:
 732                         numThreadsRxNumerical = 0;
 733                         break;
 734                 }
 735
 736                 pr_info("Thread data RX:\n");
 737                 pr_info("Base address: 0x%08x\n",
 738                         (u32)ugeth->p_thread_data_rx);
 739                 for (i = 0; i < numThreadsRxNumerical; i++) {
 740                         pr_info("Thread data RX[%d]:\n", i);
 741                         pr_info("Base address: 0x%08x\n",
 742                                 (u32)&ugeth->p_thread_data_rx[i]);
 743                         mem_disp((u8 *) & ugeth->p_thread_data_rx[i],
 744                                  sizeof(struct ucc_geth_thread_data_rx));
 745                 }
 746         }
 747         if (ugeth->p_exf_glbl_param) {
 748                 pr_info("EXF global param:\n");
 749                 pr_info("Base address: 0x%08x\n",
 750                         (u32)ugeth->p_exf_glbl_param);
 751                 mem_disp((u8 *) ugeth->p_exf_glbl_param,
 752                          sizeof(*ugeth->p_exf_glbl_param));
 753         }
 754         if (ugeth->p_tx_glbl_pram) {
 755                 pr_info("TX global param:\n");
 756                 pr_info("Base address: 0x%08x\n", (u32)ugeth->p_tx_glbl_pram);
 757                 pr_info("temoder      : addr - 0x%08x, val - 0x%04x\n",
 758                         (u32)&ugeth->p_tx_glbl_pram->temoder,
 759                         in_be16(&ugeth->p_tx_glbl_pram->temoder));
 760                pr_info("sqptr        : addr - 0x%08x, val - 0x%08x\n",
 761                         (u32)&ugeth->p_tx_glbl_pram->sqptr,
 762                         in_be32(&ugeth->p_tx_glbl_pram->sqptr));
 763                 pr_info("schedulerbasepointer: addr - 0x%08x, val - 0x%08x\n",
 764                         (u32)&ugeth->p_tx_glbl_pram->schedulerbasepointer,
 765                         in_be32(&ugeth->p_tx_glbl_pram->schedulerbasepointer));
 766                 pr_info("txrmonbaseptr: addr - 0x%08x, val - 0x%08x\n",
 767                         (u32)&ugeth->p_tx_glbl_pram->txrmonbaseptr,
 768                         in_be32(&ugeth->p_tx_glbl_pram->txrmonbaseptr));
 769                 pr_info("tstate       : addr - 0x%08x, val - 0x%08x\n",
 770                         (u32)&ugeth->p_tx_glbl_pram->tstate,
 771                         in_be32(&ugeth->p_tx_glbl_pram->tstate));
 772                 pr_info("iphoffset[0] : addr - 0x%08x, val - 0x%02x\n",
 773                         (u32)&ugeth->p_tx_glbl_pram->iphoffset[0],
 774                         ugeth->p_tx_glbl_pram->iphoffset[0]);
 775                 pr_info("iphoffset[1] : addr - 0x%08x, val - 0x%02x\n",
 776                         (u32)&ugeth->p_tx_glbl_pram->iphoffset[1],
 777                         ugeth->p_tx_glbl_pram->iphoffset[1]);
 778                 pr_info("iphoffset[2] : addr - 0x%08x, val - 0x%02x\n",
 779                         (u32)&ugeth->p_tx_glbl_pram->iphoffset[2],
 780                         ugeth->p_tx_glbl_pram->iphoffset[2]);
 781                 pr_info("iphoffset[3] : addr - 0x%08x, val - 0x%02x\n",
 782                         (u32)&ugeth->p_tx_glbl_pram->iphoffset[3],
 783                         ugeth->p_tx_glbl_pram->iphoffset[3]);
 784                 pr_info("iphoffset[4] : addr - 0x%08x, val - 0x%02x\n",
 785                         (u32)&ugeth->p_tx_glbl_pram->iphoffset[4],
 786                         ugeth->p_tx_glbl_pram->iphoffset[4]);
 787                 pr_info("iphoffset[5] : addr - 0x%08x, val - 0x%02x\n",
 788                         (u32)&ugeth->p_tx_glbl_pram->iphoffset[5],
 789                         ugeth->p_tx_glbl_pram->iphoffset[5]);
 790                 pr_info("iphoffset[6] : addr - 0x%08x, val - 0x%02x\n",
 791                         (u32)&ugeth->p_tx_glbl_pram->iphoffset[6],
 792                         ugeth->p_tx_glbl_pram->iphoffset[6]);
 793                 pr_info("iphoffset[7] : addr - 0x%08x, val - 0x%02x\n",
 794                         (u32)&ugeth->p_tx_glbl_pram->iphoffset[7],
 795                         ugeth->p_tx_glbl_pram->iphoffset[7]);
 796                 pr_info("vtagtable[0] : addr - 0x%08x, val - 0x%08x\n",
 797                         (u32)&ugeth->p_tx_glbl_pram->vtagtable[0],
 798                         in_be32(&ugeth->p_tx_glbl_pram->vtagtable[0]));
 799                 pr_info("vtagtable[1] : addr - 0x%08x, val - 0x%08x\n",
 800                         (u32)&ugeth->p_tx_glbl_pram->vtagtable[1],
 801                         in_be32(&ugeth->p_tx_glbl_pram->vtagtable[1]));
 802                 pr_info("vtagtable[2] : addr - 0x%08x, val - 0x%08x\n",
 803                         (u32)&ugeth->p_tx_glbl_pram->vtagtable[2],
 804                         in_be32(&ugeth->p_tx_glbl_pram->vtagtable[2]));
 805                 pr_info("vtagtable[3] : addr - 0x%08x, val - 0x%08x\n",
 806                         (u32)&ugeth->p_tx_glbl_pram->vtagtable[3],
 807                         in_be32(&ugeth->p_tx_glbl_pram->vtagtable[3]));
 808                 pr_info("vtagtable[4] : addr - 0x%08x, val - 0x%08x\n",
 809                         (u32)&ugeth->p_tx_glbl_pram->vtagtable[4],
 810                         in_be32(&ugeth->p_tx_glbl_pram->vtagtable[4]));
 811                 pr_info("vtagtable[5] : addr - 0x%08x, val - 0x%08x\n",
 812                         (u32)&ugeth->p_tx_glbl_pram->vtagtable[5],
 813                         in_be32(&ugeth->p_tx_glbl_pram->vtagtable[5]));
 814                 pr_info("vtagtable[6] : addr - 0x%08x, val - 0x%08x\n",
 815                         (u32)&ugeth->p_tx_glbl_pram->vtagtable[6],
 816                         in_be32(&ugeth->p_tx_glbl_pram->vtagtable[6]));
 817                 pr_info("vtagtable[7] : addr - 0x%08x, val - 0x%08x\n",
 818                         (u32)&ugeth->p_tx_glbl_pram->vtagtable[7],
 819                         in_be32(&ugeth->p_tx_glbl_pram->vtagtable[7]));
 820                 pr_info("tqptr        : addr - 0x%08x, val - 0x%08x\n",
 821                         (u32)&ugeth->p_tx_glbl_pram->tqptr,
 822                         in_be32(&ugeth->p_tx_glbl_pram->tqptr));
 823         }
 824         if (ugeth->p_rx_glbl_pram) {
 825                 pr_info("RX global param:\n");
 826                 pr_info("Base address: 0x%08x\n", (u32)ugeth->p_rx_glbl_pram);
 827                 pr_info("remoder         : addr - 0x%08x, val - 0x%08x\n",
 828                         (u32)&ugeth->p_rx_glbl_pram->remoder,
 829                         in_be32(&ugeth->p_rx_glbl_pram->remoder));
 830                 pr_info("rqptr           : addr - 0x%08x, val - 0x%08x\n",
 831                         (u32)&ugeth->p_rx_glbl_pram->rqptr,
 832                         in_be32(&ugeth->p_rx_glbl_pram->rqptr));
 833                 pr_info("typeorlen       : addr - 0x%08x, val - 0x%04x\n",
 834                         (u32)&ugeth->p_rx_glbl_pram->typeorlen,
 835                         in_be16(&ugeth->p_rx_glbl_pram->typeorlen));
 836                 pr_info("rxgstpack       : addr - 0x%08x, val - 0x%02x\n",
 837                         (u32)&ugeth->p_rx_glbl_pram->rxgstpack,
 838                         ugeth->p_rx_glbl_pram->rxgstpack);
 839                 pr_info("rxrmonbaseptr   : addr - 0x%08x, val - 0x%08x\n",
 840                         (u32)&ugeth->p_rx_glbl_pram->rxrmonbaseptr,
 841                         in_be32(&ugeth->p_rx_glbl_pram->rxrmonbaseptr));
 842                 pr_info("intcoalescingptr: addr - 0x%08x, val - 0x%08x\n",
 843                         (u32)&ugeth->p_rx_glbl_pram->intcoalescingptr,
 844                         in_be32(&ugeth->p_rx_glbl_pram->intcoalescingptr));
 845                 pr_info("rstate          : addr - 0x%08x, val - 0x%02x\n",
 846                         (u32)&ugeth->p_rx_glbl_pram->rstate,
 847                         ugeth->p_rx_glbl_pram->rstate);
 848                 pr_info("mrblr           : addr - 0x%08x, val - 0x%04x\n",
 849                         (u32)&ugeth->p_rx_glbl_pram->mrblr,
 850                         in_be16(&ugeth->p_rx_glbl_pram->mrblr));
 851                 pr_info("rbdqptr         : addr - 0x%08x, val - 0x%08x\n",
 852                         (u32)&ugeth->p_rx_glbl_pram->rbdqptr,
 853                         in_be32(&ugeth->p_rx_glbl_pram->rbdqptr));
 854                 pr_info("mflr            : addr - 0x%08x, val - 0x%04x\n",
 855                         (u32)&ugeth->p_rx_glbl_pram->mflr,
 856                         in_be16(&ugeth->p_rx_glbl_pram->mflr));
 857                 pr_info("minflr          : addr - 0x%08x, val - 0x%04x\n",
 858                         (u32)&ugeth->p_rx_glbl_pram->minflr,
 859                         in_be16(&ugeth->p_rx_glbl_pram->minflr));
 860                 pr_info("maxd1           : addr - 0x%08x, val - 0x%04x\n",
 861                         (u32)&ugeth->p_rx_glbl_pram->maxd1,
 862                         in_be16(&ugeth->p_rx_glbl_pram->maxd1));
 863                 pr_info("maxd2           : addr - 0x%08x, val - 0x%04x\n",
 864                         (u32)&ugeth->p_rx_glbl_pram->maxd2,
 865                         in_be16(&ugeth->p_rx_glbl_pram->maxd2));
 866                 pr_info("ecamptr         : addr - 0x%08x, val - 0x%08x\n",
 867                         (u32)&ugeth->p_rx_glbl_pram->ecamptr,
 868                         in_be32(&ugeth->p_rx_glbl_pram->ecamptr));
 869                 pr_info("l2qt            : addr - 0x%08x, val - 0x%08x\n",
 870                         (u32)&ugeth->p_rx_glbl_pram->l2qt,
 871                         in_be32(&ugeth->p_rx_glbl_pram->l2qt));
 872                 pr_info("l3qt[0]         : addr - 0x%08x, val - 0x%08x\n",
 873                         (u32)&ugeth->p_rx_glbl_pram->l3qt[0],
 874                         in_be32(&ugeth->p_rx_glbl_pram->l3qt[0]));
 875                 pr_info("l3qt[1]         : addr - 0x%08x, val - 0x%08x\n",
 876                         (u32)&ugeth->p_rx_glbl_pram->l3qt[1],
 877                         in_be32(&ugeth->p_rx_glbl_pram->l3qt[1]));
 878                 pr_info("l3qt[2]         : addr - 0x%08x, val - 0x%08x\n",
 879                         (u32)&ugeth->p_rx_glbl_pram->l3qt[2],
 880                         in_be32(&ugeth->p_rx_glbl_pram->l3qt[2]));
 881                 pr_info("l3qt[3]         : addr - 0x%08x, val - 0x%08x\n",
 882                         (u32)&ugeth->p_rx_glbl_pram->l3qt[3],
 883                         in_be32(&ugeth->p_rx_glbl_pram->l3qt[3]));
 884                 pr_info("l3qt[4]         : addr - 0x%08x, val - 0x%08x\n",
 885                         (u32)&ugeth->p_rx_glbl_pram->l3qt[4],
 886                         in_be32(&ugeth->p_rx_glbl_pram->l3qt[4]));
 887                 pr_info("l3qt[5]         : addr - 0x%08x, val - 0x%08x\n",
 888                         (u32)&ugeth->p_rx_glbl_pram->l3qt[5],
 889                         in_be32(&ugeth->p_rx_glbl_pram->l3qt[5]));
 890                 pr_info("l3qt[6]         : addr - 0x%08x, val - 0x%08x\n",
 891                         (u32)&ugeth->p_rx_glbl_pram->l3qt[6],
 892                         in_be32(&ugeth->p_rx_glbl_pram->l3qt[6]));
 893                 pr_info("l3qt[7]         : addr - 0x%08x, val - 0x%08x\n",
 894                         (u32)&ugeth->p_rx_glbl_pram->l3qt[7],
 895                         in_be32(&ugeth->p_rx_glbl_pram->l3qt[7]));
 896                 pr_info("vlantype        : addr - 0x%08x, val - 0x%04x\n",
 897                         (u32)&ugeth->p_rx_glbl_pram->vlantype,
 898                         in_be16(&ugeth->p_rx_glbl_pram->vlantype));
 899                 pr_info("vlantci         : addr - 0x%08x, val - 0x%04x\n",
 900                         (u32)&ugeth->p_rx_glbl_pram->vlantci,
 901                         in_be16(&ugeth->p_rx_glbl_pram->vlantci));
 902                 for (i = 0; i < 64; i++)
 903                         pr_info("addressfiltering[%d]: addr - 0x%08x, val - 0x%02x\n",
 904                                 i,
 905                                 (u32)&ugeth->p_rx_glbl_pram->addressfiltering[i],
 906                                 ugeth->p_rx_glbl_pram->addressfiltering[i]);
 907                 pr_info("exfGlobalParam  : addr - 0x%08x, val - 0x%08x\n",
 908                         (u32)&ugeth->p_rx_glbl_pram->exfGlobalParam,
 909                         in_be32(&ugeth->p_rx_glbl_pram->exfGlobalParam));
 910         }
 911         if (ugeth->p_send_q_mem_reg) {
 912                 pr_info("Send Q memory registers:\n");
 913                 pr_info("Base address: 0x%08x\n", (u32)ugeth->p_send_q_mem_reg);
 914                 for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) {
 915                         pr_info("SQQD[%d]:\n", i);
 916                         pr_info("Base address: 0x%08x\n",
 917                                 (u32)&ugeth->p_send_q_mem_reg->sqqd[i]);
 918                         mem_disp((u8 *) & ugeth->p_send_q_mem_reg->sqqd[i],
 919                                  sizeof(struct ucc_geth_send_queue_qd));
 920                 }
 921         }
 922         if (ugeth->p_scheduler) {
 923                 pr_info("Scheduler:\n");
 924                 pr_info("Base address: 0x%08x\n", (u32)ugeth->p_scheduler);
 925                 mem_disp((u8 *) ugeth->p_scheduler,
 926                          sizeof(*ugeth->p_scheduler));
 927         }
 928         if (ugeth->p_tx_fw_statistics_pram) {
 929                 pr_info("TX FW statistics pram:\n");
 930                 pr_info("Base address: 0x%08x\n",
 931                         (u32)ugeth->p_tx_fw_statistics_pram);
 932                 mem_disp((u8 *) ugeth->p_tx_fw_statistics_pram,
 933                          sizeof(*ugeth->p_tx_fw_statistics_pram));
 934         }
 935         if (ugeth->p_rx_fw_statistics_pram) {
 936                 pr_info("RX FW statistics pram:\n");
 937                 pr_info("Base address: 0x%08x\n",
 938                         (u32)ugeth->p_rx_fw_statistics_pram);
 939                 mem_disp((u8 *) ugeth->p_rx_fw_statistics_pram,
 940                          sizeof(*ugeth->p_rx_fw_statistics_pram));
 941         }
 942         if (ugeth->p_rx_irq_coalescing_tbl) {
 943                 pr_info("RX IRQ coalescing tables:\n");
 944                 pr_info("Base address: 0x%08x\n",
 945                         (u32)ugeth->p_rx_irq_coalescing_tbl);
 946                 for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
 947                         pr_info("RX IRQ coalescing table entry[%d]:\n", i);
 948                         pr_info("Base address: 0x%08x\n",
 949                                 (u32)&ugeth->p_rx_irq_coalescing_tbl->
 950                                 coalescingentry[i]);
 951                         pr_info("interruptcoalescingmaxvalue: addr - 0x%08x, val - 0x%08x\n",
 952                                 (u32)&ugeth->p_rx_irq_coalescing_tbl->
 953                                 coalescingentry[i].interruptcoalescingmaxvalue,
 954                                 in_be32(&ugeth->p_rx_irq_coalescing_tbl->
 955                                         coalescingentry[i].
 956                                         interruptcoalescingmaxvalue));
 957                         pr_info("interruptcoalescingcounter : addr - 0x%08x, val - 0x%08x\n",
 958                                 (u32)&ugeth->p_rx_irq_coalescing_tbl->
 959                                 coalescingentry[i].interruptcoalescingcounter,
 960                                 in_be32(&ugeth->p_rx_irq_coalescing_tbl->
 961                                         coalescingentry[i].
 962                                         interruptcoalescingcounter));
 963                 }
 964         }
 965         if (ugeth->p_rx_bd_qs_tbl) {
 966                 pr_info("RX BD QS tables:\n");
 967                 pr_info("Base address: 0x%08x\n", (u32)ugeth->p_rx_bd_qs_tbl);
 968                 for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
 969                         pr_info("RX BD QS table[%d]:\n", i);
 970                         pr_info("Base address: 0x%08x\n",
 971                                 (u32)&ugeth->p_rx_bd_qs_tbl[i]);
 972                         pr_info("bdbaseptr        : addr - 0x%08x, val - 0x%08x\n",
 973                                 (u32)&ugeth->p_rx_bd_qs_tbl[i].bdbaseptr,
 974                                 in_be32(&ugeth->p_rx_bd_qs_tbl[i].bdbaseptr));
 975                         pr_info("bdptr            : addr - 0x%08x, val - 0x%08x\n",
 976                                 (u32)&ugeth->p_rx_bd_qs_tbl[i].bdptr,
 977                                 in_be32(&ugeth->p_rx_bd_qs_tbl[i].bdptr));
 978                         pr_info("externalbdbaseptr: addr - 0x%08x, val - 0x%08x\n",
 979                                 (u32)&ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
 980                                 in_be32(&ugeth->p_rx_bd_qs_tbl[i].
 981                                         externalbdbaseptr));
 982                         pr_info("externalbdptr    : addr - 0x%08x, val - 0x%08x\n",
 983                                 (u32)&ugeth->p_rx_bd_qs_tbl[i].externalbdptr,
 984                                 in_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdptr));
 985                         pr_info("ucode RX Prefetched BDs:\n");
 986                         pr_info("Base address: 0x%08x\n",
 987                                 (u32)qe_muram_addr(in_be32
 988                                                    (&ugeth->p_rx_bd_qs_tbl[i].
 989                                                     bdbaseptr)));
 990                         mem_disp((u8 *)
 991                                  qe_muram_addr(in_be32
 992                                                (&ugeth->p_rx_bd_qs_tbl[i].
 993                                                 bdbaseptr)),
 994                                  sizeof(struct ucc_geth_rx_prefetched_bds));
 995                 }
 996         }
 997         if (ugeth->p_init_enet_param_shadow) {
 998                 int size;
 999                 pr_info("Init enet param shadow:\n");
1000                 pr_info("Base address: 0x%08x\n",
1001                         (u32) ugeth->p_init_enet_param_shadow);
1002                 mem_disp((u8 *) ugeth->p_init_enet_param_shadow,
1003                          sizeof(*ugeth->p_init_enet_param_shadow));
1004
1005                 size = sizeof(struct ucc_geth_thread_rx_pram);
1006                 if (ugeth->ug_info->rxExtendedFiltering) {
1007                         size +=
1008                             THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING;
1009                         if (ugeth->ug_info->largestexternallookupkeysize ==
1010                             QE_FLTR_TABLE_LOOKUP_KEY_SIZE_8_BYTES)
1011                                 size +=
1012                         THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_8;
1013                         if (ugeth->ug_info->largestexternallookupkeysize ==
1014                             QE_FLTR_TABLE_LOOKUP_KEY_SIZE_16_BYTES)
1015                                 size +=
1016                         THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_16;
1017                 }
1018
1019                 dump_init_enet_entries(ugeth,
1020                                        &(ugeth->p_init_enet_param_shadow->
1021                                          txthread[0]),
1022                                        ENET_INIT_PARAM_MAX_ENTRIES_TX,
1023                                        sizeof(struct ucc_geth_thread_tx_pram),
1024                                        ugeth->ug_info->riscTx, 0);
1025                 dump_init_enet_entries(ugeth,
1026                                        &(ugeth->p_init_enet_param_shadow->
1027                                          rxthread[0]),
1028                                        ENET_INIT_PARAM_MAX_ENTRIES_RX, size,
1029                                        ugeth->ug_info->riscRx, 1);
1030         }
1031 }
1032 #endif /* DEBUG */
1033
1034 static void init_default_reg_vals(u32 __iomem *upsmr_register,
1035                                   u32 __iomem *maccfg1_register,
1036                                   u32 __iomem *maccfg2_register)
1037 {
1038         out_be32(upsmr_register, UCC_GETH_UPSMR_INIT);
1039         out_be32(maccfg1_register, UCC_GETH_MACCFG1_INIT);
1040         out_be32(maccfg2_register, UCC_GETH_MACCFG2_INIT);
1041 }
1042
1043 static int init_half_duplex_params(int alt_beb,
1044                                    int back_pressure_no_backoff,
1045                                    int no_backoff,
1046                                    int excess_defer,
1047                                    u8 alt_beb_truncation,
1048                                    u8 max_retransmissions,
1049                                    u8 collision_window,
1050                                    u32 __iomem *hafdup_register)
1051 {
1052         u32 value = 0;
1053
1054         if ((alt_beb_truncation > HALFDUP_ALT_BEB_TRUNCATION_MAX) ||
1055             (max_retransmissions > HALFDUP_MAX_RETRANSMISSION_MAX) ||
1056             (collision_window > HALFDUP_COLLISION_WINDOW_MAX))
1057                 return -EINVAL;
1058
1059         value = (u32) (alt_beb_truncation << HALFDUP_ALT_BEB_TRUNCATION_SHIFT);
1060
1061         if (alt_beb)
1062                 value |= HALFDUP_ALT_BEB;
1063         if (back_pressure_no_backoff)
1064                 value |= HALFDUP_BACK_PRESSURE_NO_BACKOFF;
1065         if (no_backoff)
1066                 value |= HALFDUP_NO_BACKOFF;
1067         if (excess_defer)
1068                 value |= HALFDUP_EXCESSIVE_DEFER;
1069
1070         value |= (max_retransmissions << HALFDUP_MAX_RETRANSMISSION_SHIFT);
1071
1072         value |= collision_window;
1073
1074         out_be32(hafdup_register, value);
1075         return 0;
1076 }
1077
1078 static int init_inter_frame_gap_params(u8 non_btb_cs_ipg,
1079                                        u8 non_btb_ipg,
1080                                        u8 min_ifg,
1081                                        u8 btb_ipg,
1082                                        u32 __iomem *ipgifg_register)
1083 {
1084         u32 value = 0;
1085
1086         /* Non-Back-to-back IPG part 1 should be <= Non-Back-to-back
1087         IPG part 2 */
1088         if (non_btb_cs_ipg > non_btb_ipg)
1089                 return -EINVAL;
1090
1091         if ((non_btb_cs_ipg > IPGIFG_NON_BACK_TO_BACK_IFG_PART1_MAX) ||
1092             (non_btb_ipg > IPGIFG_NON_BACK_TO_BACK_IFG_PART2_MAX) ||
1093             /*(min_ifg        > IPGIFG_MINIMUM_IFG_ENFORCEMENT_MAX) || */
1094             (btb_ipg > IPGIFG_BACK_TO_BACK_IFG_MAX))
1095                 return -EINVAL;
1096
1097         value |=
1098             ((non_btb_cs_ipg << IPGIFG_NON_BACK_TO_BACK_IFG_PART1_SHIFT) &
1099              IPGIFG_NBTB_CS_IPG_MASK);
1100         value |=
1101             ((non_btb_ipg << IPGIFG_NON_BACK_TO_BACK_IFG_PART2_SHIFT) &
1102              IPGIFG_NBTB_IPG_MASK);
1103         value |=
1104             ((min_ifg << IPGIFG_MINIMUM_IFG_ENFORCEMENT_SHIFT) &
1105              IPGIFG_MIN_IFG_MASK);
1106         value |= (btb_ipg & IPGIFG_BTB_IPG_MASK);
1107
1108         out_be32(ipgifg_register, value);
1109         return 0;
1110 }
1111
1112 int init_flow_control_params(u32 automatic_flow_control_mode,
1113                                     int rx_flow_control_enable,
1114                                     int tx_flow_control_enable,
1115                                     u16 pause_period,
1116                                     u16 extension_field,
1117                                     u32 __iomem *upsmr_register,
1118                                     u32 __iomem *uempr_register,
1119                                     u32 __iomem *maccfg1_register)
1120 {
1121         u32 value = 0;
1122
1123         /* Set UEMPR register */
1124         value = (u32) pause_period << UEMPR_PAUSE_TIME_VALUE_SHIFT;
1125         value |= (u32) extension_field << UEMPR_EXTENDED_PAUSE_TIME_VALUE_SHIFT;
1126         out_be32(uempr_register, value);
1127
1128         /* Set UPSMR register */
1129         setbits32(upsmr_register, automatic_flow_control_mode);
1130
1131         value = in_be32(maccfg1_register);
1132         if (rx_flow_control_enable)
1133                 value |= MACCFG1_FLOW_RX;
1134         if (tx_flow_control_enable)
1135                 value |= MACCFG1_FLOW_TX;
1136         out_be32(maccfg1_register, value);
1137
1138         return 0;
1139 }
1140
1141 static int init_hw_statistics_gathering_mode(int enable_hardware_statistics,
1142                                              int auto_zero_hardware_statistics,
1143                                              u32 __iomem *upsmr_register,
1144                                              u16 __iomem *uescr_register)
1145 {
1146         u16 uescr_value = 0;
1147
1148         /* Enable hardware statistics gathering if requested */
1149         if (enable_hardware_statistics)
1150                 setbits32(upsmr_register, UCC_GETH_UPSMR_HSE);
1151
1152         /* Clear hardware statistics counters */
1153         uescr_value = in_be16(uescr_register);
1154         uescr_value |= UESCR_CLRCNT;
1155         /* Automatically zero hardware statistics counters on read,
1156         if requested */
1157         if (auto_zero_hardware_statistics)
1158                 uescr_value |= UESCR_AUTOZ;
1159         out_be16(uescr_register, uescr_value);
1160
1161         return 0;
1162 }
1163
1164 static int init_firmware_statistics_gathering_mode(int
1165                 enable_tx_firmware_statistics,
1166                 int enable_rx_firmware_statistics,
1167                 u32 __iomem *tx_rmon_base_ptr,
1168                 u32 tx_firmware_statistics_structure_address,
1169                 u32 __iomem *rx_rmon_base_ptr,
1170                 u32 rx_firmware_statistics_structure_address,
1171                 u16 __iomem *temoder_register,
1172                 u32 __iomem *remoder_register)
1173 {
1174         /* Note: this function does not check if */
1175         /* the parameters it receives are NULL   */
1176
1177         if (enable_tx_firmware_statistics) {
1178                 out_be32(tx_rmon_base_ptr,
1179                          tx_firmware_statistics_structure_address);
1180                 setbits16(temoder_register, TEMODER_TX_RMON_STATISTICS_ENABLE);
1181         }
1182
1183         if (enable_rx_firmware_statistics) {
1184                 out_be32(rx_rmon_base_ptr,
1185                          rx_firmware_statistics_structure_address);
1186                 setbits32(remoder_register, REMODER_RX_RMON_STATISTICS_ENABLE);
1187         }
1188
1189         return 0;
1190 }
1191
1192 static int init_mac_station_addr_regs(u8 address_byte_0,
1193                                       u8 address_byte_1,
1194                                       u8 address_byte_2,
1195                                       u8 address_byte_3,
1196                                       u8 address_byte_4,
1197                                       u8 address_byte_5,
1198                                       u32 __iomem *macstnaddr1_register,
1199                                       u32 __iomem *macstnaddr2_register)
1200 {
1201         u32 value = 0;
1202
1203         /* Example: for a station address of 0x12345678ABCD, */
1204         /* 0x12 is byte 0, 0x34 is byte 1 and so on and 0xCD is byte 5 */
1205
1206         /* MACSTNADDR1 Register: */
1207
1208         /* 0                      7   8                      15  */
1209         /* station address byte 5     station address byte 4     */
1210         /* 16                     23  24                     31  */
1211         /* station address byte 3     station address byte 2     */
1212         value |= (u32) ((address_byte_2 << 0) & 0x000000FF);
1213         value |= (u32) ((address_byte_3 << 8) & 0x0000FF00);
1214         value |= (u32) ((address_byte_4 << 16) & 0x00FF0000);
1215         value |= (u32) ((address_byte_5 << 24) & 0xFF000000);
1216
1217         out_be32(macstnaddr1_register, value);
1218
1219         /* MACSTNADDR2 Register: */
1220
1221         /* 0                      7   8                      15  */
1222         /* station address byte 1     station address byte 0     */
1223         /* 16                     23  24                     31  */
1224         /*         reserved                   reserved           */
1225         value = 0;
1226         value |= (u32) ((address_byte_0 << 16) & 0x00FF0000);
1227         value |= (u32) ((address_byte_1 << 24) & 0xFF000000);
1228
1229         out_be32(macstnaddr2_register, value);
1230
1231         return 0;
1232 }
1233
1234 static int init_check_frame_length_mode(int length_check,
1235                                         u32 __iomem *maccfg2_register)
1236 {
1237         u32 value = 0;
1238
1239         value = in_be32(maccfg2_register);
1240
1241         if (length_check)
1242                 value |= MACCFG2_LC;
1243         else
1244                 value &= ~MACCFG2_LC;
1245
1246         out_be32(maccfg2_register, value);
1247         return 0;
1248 }
1249
1250 static int init_preamble_length(u8 preamble_length,
1251                                 u32 __iomem *maccfg2_register)
1252 {
1253         if ((preamble_length < 3) || (preamble_length > 7))
1254                 return -EINVAL;
1255
1256         clrsetbits_be32(maccfg2_register, MACCFG2_PREL_MASK,
1257                         preamble_length << MACCFG2_PREL_SHIFT);
1258
1259         return 0;
1260 }
1261
1262 static int init_rx_parameters(int reject_broadcast,
1263                               int receive_short_frames,
1264                               int promiscuous, u32 __iomem *upsmr_register)
1265 {
1266         u32 value = 0;
1267
1268         value = in_be32(upsmr_register);
1269
1270         if (reject_broadcast)
1271                 value |= UCC_GETH_UPSMR_BRO;
1272         else
1273                 value &= ~UCC_GETH_UPSMR_BRO;
1274
1275         if (receive_short_frames)
1276                 value |= UCC_GETH_UPSMR_RSH;
1277         else
1278                 value &= ~UCC_GETH_UPSMR_RSH;
1279
1280         if (promiscuous)
1281                 value |= UCC_GETH_UPSMR_PRO;
1282         else
1283                 value &= ~UCC_GETH_UPSMR_PRO;
1284
1285         out_be32(upsmr_register, value);
1286
1287         return 0;
1288 }
1289
1290 static int init_max_rx_buff_len(u16 max_rx_buf_len,
1291                                 u16 __iomem *mrblr_register)
1292 {
1293         /* max_rx_buf_len value must be a multiple of 128 */
1294         if ((max_rx_buf_len == 0) ||
1295             (max_rx_buf_len % UCC_GETH_MRBLR_ALIGNMENT))
1296                 return -EINVAL;
1297
1298         out_be16(mrblr_register, max_rx_buf_len);
1299         return 0;
1300 }
1301
1302 static int init_min_frame_len(u16 min_frame_length,
1303                               u16 __iomem *minflr_register,
1304                               u16 __iomem *mrblr_register)
1305 {
1306         u16 mrblr_value = 0;
1307
1308         mrblr_value = in_be16(mrblr_register);
1309         if (min_frame_length >= (mrblr_value - 4))
1310                 return -EINVAL;
1311
1312         out_be16(minflr_register, min_frame_length);
1313         return 0;
1314 }
1315
1316 static int adjust_enet_interface(struct ucc_geth_private *ugeth)
1317 {
1318         struct ucc_geth_info *ug_info;
1319         struct ucc_geth __iomem *ug_regs;
1320         struct ucc_fast __iomem *uf_regs;
1321         int ret_val;
1322         u32 upsmr, maccfg2;
1323         u16 value;
1324
1325         ugeth_vdbg("%s: IN", __func__);
1326
1327         ug_info = ugeth->ug_info;
1328         ug_regs = ugeth->ug_regs;
1329         uf_regs = ugeth->uccf->uf_regs;
1330
1331         /*                    Set MACCFG2                    */
1332         maccfg2 = in_be32(&ug_regs->maccfg2);
1333         maccfg2 &= ~MACCFG2_INTERFACE_MODE_MASK;
1334         if ((ugeth->max_speed == SPEED_10) ||
1335             (ugeth->max_speed == SPEED_100))
1336                 maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
1337         else if (ugeth->max_speed == SPEED_1000)
1338                 maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE;
1339         maccfg2 |= ug_info->padAndCrc;
1340         out_be32(&ug_regs->maccfg2, maccfg2);
1341
1342         /*                    Set UPSMR                      */
1343         upsmr = in_be32(&uf_regs->upsmr);
1344         upsmr &= ~(UCC_GETH_UPSMR_RPM | UCC_GETH_UPSMR_R10M |
1345                    UCC_GETH_UPSMR_TBIM | UCC_GETH_UPSMR_RMM);
1346         if ((ugeth->phy_interface == PHY_INTERFACE_MODE_RMII) ||
1347             (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII) ||
1348             (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_ID) ||
1349             (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_RXID) ||
1350             (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_TXID) ||
1351             (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1352                 if (ugeth->phy_interface != PHY_INTERFACE_MODE_RMII)
1353                         upsmr |= UCC_GETH_UPSMR_RPM;
1354                 switch (ugeth->max_speed) {
1355                 case SPEED_10:
1356                         upsmr |= UCC_GETH_UPSMR_R10M;
1357                         /* FALLTHROUGH */
1358                 case SPEED_100:
1359                         if (ugeth->phy_interface != PHY_INTERFACE_MODE_RTBI)
1360                                 upsmr |= UCC_GETH_UPSMR_RMM;
1361                 }
1362         }
1363         if ((ugeth->phy_interface == PHY_INTERFACE_MODE_TBI) ||
1364             (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1365                 upsmr |= UCC_GETH_UPSMR_TBIM;
1366         }
1367         if ((ugeth->phy_interface == PHY_INTERFACE_MODE_SGMII))
1368                 upsmr |= UCC_GETH_UPSMR_SGMM;
1369
1370         out_be32(&uf_regs->upsmr, upsmr);
1371
1372         /* Disable autonegotiation in tbi mode, because by default it
1373         comes up in autonegotiation mode. */
1374         /* Note that this depends on proper setting in utbipar register. */
1375         if ((ugeth->phy_interface == PHY_INTERFACE_MODE_TBI) ||
1376             (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1377                 struct ucc_geth_info *ug_info = ugeth->ug_info;
1378                 struct phy_device *tbiphy;
1379
1380                 if (!ug_info->tbi_node)
1381                         pr_warn("TBI mode requires that the device tree specify a tbi-handle\n");
1382
1383                 tbiphy = of_phy_find_device(ug_info->tbi_node);
1384                 if (!tbiphy)
1385                         pr_warn("Could not get TBI device\n");
1386
1387                 value = phy_read(tbiphy, ENET_TBI_MII_CR);
1388                 value &= ~0x1000;       /* Turn off autonegotiation */
1389                 phy_write(tbiphy, ENET_TBI_MII_CR, value);
1390         }
1391
1392         init_check_frame_length_mode(ug_info->lengthCheckRx, &ug_regs->maccfg2);
1393
1394         ret_val = init_preamble_length(ug_info->prel, &ug_regs->maccfg2);
1395         if (ret_val != 0) {
1396                 if (netif_msg_probe(ugeth))
1397                         pr_err("Preamble length must be between 3 and 7 inclusive\n");
1398                 return ret_val;
1399         }
1400
1401         return 0;
1402 }
1403
1404 static int ugeth_graceful_stop_tx(struct ucc_geth_private *ugeth)
1405 {
1406         struct ucc_fast_private *uccf;
1407         u32 cecr_subblock;
1408         u32 temp;
1409         int i = 10;
1410
1411         uccf = ugeth->uccf;
1412
1413         /* Mask GRACEFUL STOP TX interrupt bit and clear it */
1414         clrbits32(uccf->p_uccm, UCC_GETH_UCCE_GRA);
1415         out_be32(uccf->p_ucce, UCC_GETH_UCCE_GRA);  /* clear by writing 1 */
1416
1417         /* Issue host command */
1418         cecr_subblock =
1419             ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
1420         qe_issue_cmd(QE_GRACEFUL_STOP_TX, cecr_subblock,
1421                      QE_CR_PROTOCOL_ETHERNET, 0);
1422
1423         /* Wait for command to complete */
1424         do {
1425                 msleep(10);
1426                 temp = in_be32(uccf->p_ucce);
1427         } while (!(temp & UCC_GETH_UCCE_GRA) && --i);
1428
1429         uccf->stopped_tx = 1;
1430
1431         return 0;
1432 }
1433
1434 static int ugeth_graceful_stop_rx(struct ucc_geth_private *ugeth)
1435 {
1436         struct ucc_fast_private *uccf;
1437         u32 cecr_subblock;
1438         u8 temp;
1439         int i = 10;
1440
1441         uccf = ugeth->uccf;
1442
1443         /* Clear acknowledge bit */
1444         temp = in_8(&ugeth->p_rx_glbl_pram->rxgstpack);
1445         temp &= ~GRACEFUL_STOP_ACKNOWLEDGE_RX;
1446         out_8(&ugeth->p_rx_glbl_pram->rxgstpack, temp);
1447
1448         /* Keep issuing command and checking acknowledge bit until
1449         it is asserted, according to spec */
1450         do {
1451                 /* Issue host command */
1452                 cecr_subblock =
1453                     ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.
1454                                                 ucc_num);
1455                 qe_issue_cmd(QE_GRACEFUL_STOP_RX, cecr_subblock,
1456                              QE_CR_PROTOCOL_ETHERNET, 0);
1457                 msleep(10);
1458                 temp = in_8(&ugeth->p_rx_glbl_pram->rxgstpack);
1459         } while (!(temp & GRACEFUL_STOP_ACKNOWLEDGE_RX) && --i);
1460
1461         uccf->stopped_rx = 1;
1462
1463         return 0;
1464 }
1465
1466 static int ugeth_restart_tx(struct ucc_geth_private *ugeth)
1467 {
1468         struct ucc_fast_private *uccf;
1469         u32 cecr_subblock;
1470
1471         uccf = ugeth->uccf;
1472
1473         cecr_subblock =
1474             ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
1475         qe_issue_cmd(QE_RESTART_TX, cecr_subblock, QE_CR_PROTOCOL_ETHERNET, 0);
1476         uccf->stopped_tx = 0;
1477
1478         return 0;
1479 }
1480
1481 static int ugeth_restart_rx(struct ucc_geth_private *ugeth)
1482 {
1483         struct ucc_fast_private *uccf;
1484         u32 cecr_subblock;
1485
1486         uccf = ugeth->uccf;
1487
1488         cecr_subblock =
1489             ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
1490         qe_issue_cmd(QE_RESTART_RX, cecr_subblock, QE_CR_PROTOCOL_ETHERNET,
1491                      0);
1492         uccf->stopped_rx = 0;
1493
1494         return 0;
1495 }
1496
1497 static int ugeth_enable(struct ucc_geth_private *ugeth, enum comm_dir mode)
1498 {
1499         struct ucc_fast_private *uccf;
1500         int enabled_tx, enabled_rx;
1501
1502         uccf = ugeth->uccf;
1503
1504         /* check if the UCC number is in range. */
1505         if (ugeth->ug_info->uf_info.ucc_num >= UCC_MAX_NUM) {
1506                 if (netif_msg_probe(ugeth))
1507                         pr_err("ucc_num out of range\n");
1508                 return -EINVAL;
1509         }
1510
1511         enabled_tx = uccf->enabled_tx;
1512         enabled_rx = uccf->enabled_rx;
1513
1514         /* Get Tx and Rx going again, in case this channel was actively
1515         disabled. */
1516         if ((mode & COMM_DIR_TX) && (!enabled_tx) && uccf->stopped_tx)
1517                 ugeth_restart_tx(ugeth);
1518         if ((mode & COMM_DIR_RX) && (!enabled_rx) && uccf->stopped_rx)
1519                 ugeth_restart_rx(ugeth);
1520
1521         ucc_fast_enable(uccf, mode);    /* OK to do even if not disabled */
1522
1523         return 0;
1524
1525 }
1526
1527 static int ugeth_disable(struct ucc_geth_private *ugeth, enum comm_dir mode)
1528 {
1529         struct ucc_fast_private *uccf;
1530
1531         uccf = ugeth->uccf;
1532
1533         /* check if the UCC number is in range. */
1534         if (ugeth->ug_info->uf_info.ucc_num >= UCC_MAX_NUM) {
1535                 if (netif_msg_probe(ugeth))
1536                         pr_err("ucc_num out of range\n");
1537                 return -EINVAL;
1538         }
1539
1540         /* Stop any transmissions */
1541         if ((mode & COMM_DIR_TX) && uccf->enabled_tx && !uccf->stopped_tx)
1542                 ugeth_graceful_stop_tx(ugeth);
1543
1544         /* Stop any receptions */
1545         if ((mode & COMM_DIR_RX) && uccf->enabled_rx && !uccf->stopped_rx)
1546                 ugeth_graceful_stop_rx(ugeth);
1547
1548         ucc_fast_disable(ugeth->uccf, mode); /* OK to do even if not enabled */
1549
1550         return 0;
1551 }
1552
1553 static void ugeth_quiesce(struct ucc_geth_private *ugeth)
1554 {
1555         /* Prevent any further xmits, plus detach the device. */
1556         netif_device_detach(ugeth->ndev);
1557
1558         /* Wait for any current xmits to finish. */
1559         netif_tx_disable(ugeth->ndev);
1560
1561         /* Disable the interrupt to avoid NAPI rescheduling. */
1562         disable_irq(ugeth->ug_info->uf_info.irq);
1563
1564         /* Stop NAPI, and possibly wait for its completion. */
1565         napi_disable(&ugeth->napi);
1566 }
1567
1568 static void ugeth_activate(struct ucc_geth_private *ugeth)
1569 {
1570         napi_enable(&ugeth->napi);
1571         enable_irq(ugeth->ug_info->uf_info.irq);
1572         netif_device_attach(ugeth->ndev);
1573 }
1574
1575 /* Called every time the controller might need to be made
1576  * aware of new link state.  The PHY code conveys this
1577  * information through variables in the ugeth structure, and this
1578  * function converts those variables into the appropriate
1579  * register values, and can bring down the device if needed.
1580  */
1581
1582 static void adjust_link(struct net_device *dev)
1583 {
1584         struct ucc_geth_private *ugeth = netdev_priv(dev);
1585         struct ucc_geth __iomem *ug_regs;
1586         struct ucc_fast __iomem *uf_regs;
1587         struct phy_device *phydev = ugeth->phydev;
1588         int new_state = 0;
1589
1590         ug_regs = ugeth->ug_regs;
1591         uf_regs = ugeth->uccf->uf_regs;
1592
1593         if (phydev->link) {
1594                 u32 tempval = in_be32(&ug_regs->maccfg2);
1595                 u32 upsmr = in_be32(&uf_regs->upsmr);
1596                 /* Now we make sure that we can be in full duplex mode.
1597                  * If not, we operate in half-duplex mode. */
1598                 if (phydev->duplex != ugeth->oldduplex) {
1599                         new_state = 1;
1600                         if (!(phydev->duplex))
1601                                 tempval &= ~(MACCFG2_FDX);
1602                         else
1603                                 tempval |= MACCFG2_FDX;
1604                         ugeth->oldduplex = phydev->duplex;
1605                 }
1606
1607                 if (phydev->speed != ugeth->oldspeed) {
1608                         new_state = 1;
1609                         switch (phydev->speed) {
1610                         case SPEED_1000:
1611                                 tempval = ((tempval &
1612                                             ~(MACCFG2_INTERFACE_MODE_MASK)) |
1613                                             MACCFG2_INTERFACE_MODE_BYTE);
1614                                 break;
1615                         case SPEED_100:
1616                         case SPEED_10:
1617                                 tempval = ((tempval &
1618                                             ~(MACCFG2_INTERFACE_MODE_MASK)) |
1619                                             MACCFG2_INTERFACE_MODE_NIBBLE);
1620                                 /* if reduced mode, re-set UPSMR.R10M */
1621                                 if ((ugeth->phy_interface == PHY_INTERFACE_MODE_RMII) ||
1622                                     (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII) ||
1623                                     (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_ID) ||
1624                                     (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_RXID) ||
1625                                     (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_TXID) ||
1626                                     (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1627                                         if (phydev->speed == SPEED_10)
1628                                                 upsmr |= UCC_GETH_UPSMR_R10M;
1629                                         else
1630                                                 upsmr &= ~UCC_GETH_UPSMR_R10M;
1631                                 }
1632                                 break;
1633                         default:
1634                                 if (netif_msg_link(ugeth))
1635                                         pr_warn(
1636                                                 "%s: Ack!  Speed (%d) is not 10/100/1000!",
1637                                                 dev->name, phydev->speed);
1638                                 break;
1639                         }
1640                         ugeth->oldspeed = phydev->speed;
1641                 }
1642
1643                 if (!ugeth->oldlink) {
1644                         new_state = 1;
1645                         ugeth->oldlink = 1;
1646                 }
1647
1648                 if (new_state) {
1649                         /*
1650                          * To change the MAC configuration we need to disable
1651                          * the controller. To do so, we have to either grab
1652                          * ugeth->lock, which is a bad idea since 'graceful
1653                          * stop' commands might take quite a while, or we can
1654                          * quiesce driver's activity.
1655                          */
1656                         ugeth_quiesce(ugeth);
1657                         ugeth_disable(ugeth, COMM_DIR_RX_AND_TX);
1658
1659                         out_be32(&ug_regs->maccfg2, tempval);
1660                         out_be32(&uf_regs->upsmr, upsmr);
1661
1662                         ugeth_enable(ugeth, COMM_DIR_RX_AND_TX);
1663                         ugeth_activate(ugeth);
1664                 }
1665         } else if (ugeth->oldlink) {
1666                         new_state = 1;
1667                         ugeth->oldlink = 0;
1668                         ugeth->oldspeed = 0;
1669                         ugeth->oldduplex = -1;
1670         }
1671
1672         if (new_state && netif_msg_link(ugeth))
1673                 phy_print_status(phydev);
1674 }
1675
1676 /* Initialize TBI PHY interface for communicating with the
1677  * SERDES lynx PHY on the chip.  We communicate with this PHY
1678  * through the MDIO bus on each controller, treating it as a
1679  * "normal" PHY at the address found in the UTBIPA register.  We assume
1680  * that the UTBIPA register is valid.  Either the MDIO bus code will set
1681  * it to a value that doesn't conflict with other PHYs on the bus, or the
1682  * value doesn't matter, as there are no other PHYs on the bus.
1683  */
1684 static void uec_configure_serdes(struct net_device *dev)
1685 {
1686         struct ucc_geth_private *ugeth = netdev_priv(dev);
1687         struct ucc_geth_info *ug_info = ugeth->ug_info;
1688         struct phy_device *tbiphy;
1689
1690         if (!ug_info->tbi_node) {
1691                 dev_warn(&dev->dev, "SGMII mode requires that the device "
1692                         "tree specify a tbi-handle\n");
1693                 return;
1694         }
1695
1696         tbiphy = of_phy_find_device(ug_info->tbi_node);
1697         if (!tbiphy) {
1698                 dev_err(&dev->dev, "error: Could not get TBI device\n");
1699                 return;
1700         }
1701
1702         /*
1703          * If the link is already up, we must already be ok, and don't need to
1704          * configure and reset the TBI<->SerDes link.  Maybe U-Boot configured
1705          * everything for us?  Resetting it takes the link down and requires
1706          * several seconds for it to come back.
1707          */
1708         if (phy_read(tbiphy, ENET_TBI_MII_SR) & TBISR_LSTATUS)
1709                 return;
1710
1711         /* Single clk mode, mii mode off(for serdes communication) */
1712         phy_write(tbiphy, ENET_TBI_MII_ANA, TBIANA_SETTINGS);
1713
1714         phy_write(tbiphy, ENET_TBI_MII_TBICON, TBICON_CLK_SELECT);
1715
1716         phy_write(tbiphy, ENET_TBI_MII_CR, TBICR_SETTINGS);
1717 }
1718
1719 /* Configure the PHY for dev.
1720  * returns 0 if success.  -1 if failure
1721  */
1722 static int init_phy(struct net_device *dev)
1723 {
1724         struct ucc_geth_private *priv = netdev_priv(dev);
1725         struct ucc_geth_info *ug_info = priv->ug_info;
1726         struct phy_device *phydev;
1727
1728         priv->oldlink = 0;
1729         priv->oldspeed = 0;
1730         priv->oldduplex = -1;
1731
1732         phydev = of_phy_connect(dev, ug_info->phy_node, &adjust_link, 0,
1733                                 priv->phy_interface);
1734         if (!phydev)
1735                 phydev = of_phy_connect_fixed_link(dev, &adjust_link,
1736                                                    priv->phy_interface);
1737         if (!phydev) {
1738                 dev_err(&dev->dev, "Could not attach to PHY\n");
1739                 return -ENODEV;
1740         }
1741
1742         if (priv->phy_interface == PHY_INTERFACE_MODE_SGMII)
1743                 uec_configure_serdes(dev);
1744
1745         phydev->supported &= (SUPPORTED_MII |
1746                               SUPPORTED_Autoneg |
1747                               ADVERTISED_10baseT_Half |
1748                               ADVERTISED_10baseT_Full |
1749                               ADVERTISED_100baseT_Half |
1750                               ADVERTISED_100baseT_Full);
1751
1752         if (priv->max_speed == SPEED_1000)
1753                 phydev->supported |= ADVERTISED_1000baseT_Full;
1754
1755         phydev->advertising = phydev->supported;
1756
1757         priv->phydev = phydev;
1758
1759         return 0;
1760 }
1761
1762 static void ugeth_dump_regs(struct ucc_geth_private *ugeth)
1763 {
1764 #ifdef DEBUG
1765         ucc_fast_dump_regs(ugeth->uccf);
1766         dump_regs(ugeth);
1767         dump_bds(ugeth);
1768 #endif
1769 }
1770
1771 static int ugeth_82xx_filtering_clear_all_addr_in_hash(struct ucc_geth_private *
1772                                                        ugeth,
1773                                                        enum enet_addr_type
1774                                                        enet_addr_type)
1775 {
1776         struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
1777         struct ucc_fast_private *uccf;
1778         enum comm_dir comm_dir;
1779         struct list_head *p_lh;
1780         u16 i, num;
1781         u32 __iomem *addr_h;
1782         u32 __iomem *addr_l;
1783         u8 *p_counter;
1784
1785         uccf = ugeth->uccf;
1786
1787         p_82xx_addr_filt =
1788             (struct ucc_geth_82xx_address_filtering_pram __iomem *)
1789             ugeth->p_rx_glbl_pram->addressfiltering;
1790
1791         if (enet_addr_type == ENET_ADDR_TYPE_GROUP) {
1792                 addr_h = &(p_82xx_addr_filt->gaddr_h);
1793                 addr_l = &(p_82xx_addr_filt->gaddr_l);
1794                 p_lh = &ugeth->group_hash_q;
1795                 p_counter = &(ugeth->numGroupAddrInHash);
1796         } else if (enet_addr_type == ENET_ADDR_TYPE_INDIVIDUAL) {
1797                 addr_h = &(p_82xx_addr_filt->iaddr_h);
1798                 addr_l = &(p_82xx_addr_filt->iaddr_l);
1799                 p_lh = &ugeth->ind_hash_q;
1800                 p_counter = &(ugeth->numIndAddrInHash);
1801         } else
1802                 return -EINVAL;
1803
1804         comm_dir = 0;
1805         if (uccf->enabled_tx)
1806                 comm_dir |= COMM_DIR_TX;
1807         if (uccf->enabled_rx)
1808                 comm_dir |= COMM_DIR_RX;
1809         if (comm_dir)
1810                 ugeth_disable(ugeth, comm_dir);
1811
1812         /* Clear the hash table. */
1813         out_be32(addr_h, 0x00000000);
1814         out_be32(addr_l, 0x00000000);
1815
1816         if (!p_lh)
1817                 return 0;
1818
1819         num = *p_counter;
1820
1821         /* Delete all remaining CQ elements */
1822         for (i = 0; i < num; i++)
1823                 put_enet_addr_container(ENET_ADDR_CONT_ENTRY(dequeue(p_lh)));
1824
1825         *p_counter = 0;
1826
1827         if (comm_dir)
1828                 ugeth_enable(ugeth, comm_dir);
1829
1830         return 0;
1831 }
1832
1833 static int ugeth_82xx_filtering_clear_addr_in_paddr(struct ucc_geth_private *ugeth,
1834                                                     u8 paddr_num)
1835 {
1836         ugeth->indAddrRegUsed[paddr_num] = 0; /* mark this paddr as not used */
1837         return hw_clear_addr_in_paddr(ugeth, paddr_num);/* clear in hardware */
1838 }
1839
1840 static void ucc_geth_free_rx(struct ucc_geth_private *ugeth)
1841 {
1842         struct ucc_geth_info *ug_info;
1843         struct ucc_fast_info *uf_info;
1844         u16 i, j;
1845         u8 __iomem *bd;
1846
1847
1848         ug_info = ugeth->ug_info;
1849         uf_info = &ug_info->uf_info;
1850
1851         for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
1852                 if (ugeth->p_rx_bd_ring[i]) {
1853                         /* Return existing data buffers in ring */
1854                         bd = ugeth->p_rx_bd_ring[i];
1855                         for (j = 0; j < ugeth->ug_info->bdRingLenRx[i]; j++) {
1856                                 if (ugeth->rx_skbuff[i][j]) {
1857                                         dma_unmap_single(ugeth->dev,
1858                                                 in_be32(&((struct qe_bd __iomem *)bd)->buf),
1859                                                 ugeth->ug_info->
1860                                                 uf_info.max_rx_buf_length +
1861                                                 UCC_GETH_RX_DATA_BUF_ALIGNMENT,
1862                                                 DMA_FROM_DEVICE);
1863                                         dev_kfree_skb_any(
1864                                                 ugeth->rx_skbuff[i][j]);
1865                                         ugeth->rx_skbuff[i][j] = NULL;
1866                                 }
1867                                 bd += sizeof(struct qe_bd);
1868                         }
1869
1870                         kfree(ugeth->rx_skbuff[i]);
1871
1872                         if (ugeth->ug_info->uf_info.bd_mem_part ==
1873                             MEM_PART_SYSTEM)
1874                                 kfree((void *)ugeth->rx_bd_ring_offset[i]);
1875                         else if (ugeth->ug_info->uf_info.bd_mem_part ==
1876                                  MEM_PART_MURAM)
1877                                 qe_muram_free(ugeth->rx_bd_ring_offset[i]);
1878                         ugeth->p_rx_bd_ring[i] = NULL;
1879                 }
1880         }
1881
1882 }
1883
1884 static void ucc_geth_free_tx(struct ucc_geth_private *ugeth)
1885 {
1886         struct ucc_geth_info *ug_info;
1887         struct ucc_fast_info *uf_info;
1888         u16 i, j;
1889         u8 __iomem *bd;
1890
1891         ug_info = ugeth->ug_info;
1892         uf_info = &ug_info->uf_info;
1893
1894         for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) {
1895                 bd = ugeth->p_tx_bd_ring[i];
1896                 if (!bd)
1897                         continue;
1898                 for (j = 0; j < ugeth->ug_info->bdRingLenTx[i]; j++) {
1899                         if (ugeth->tx_skbuff[i][j]) {
1900                                 dma_unmap_single(ugeth->dev,
1901                                                  in_be32(&((struct qe_bd __iomem *)bd)->buf),
1902                                                  (in_be32((u32 __iomem *)bd) &
1903                                                   BD_LENGTH_MASK),
1904                                                  DMA_TO_DEVICE);
1905                                 dev_kfree_skb_any(ugeth->tx_skbuff[i][j]);
1906                                 ugeth->tx_skbuff[i][j] = NULL;
1907                         }
1908                 }
1909
1910                 kfree(ugeth->tx_skbuff[i]);
1911
1912                 if (ugeth->p_tx_bd_ring[i]) {
1913                         if (ugeth->ug_info->uf_info.bd_mem_part ==
1914                             MEM_PART_SYSTEM)
1915                                 kfree((void *)ugeth->tx_bd_ring_offset[i]);
1916                         else if (ugeth->ug_info->uf_info.bd_mem_part ==
1917                                  MEM_PART_MURAM)
1918                                 qe_muram_free(ugeth->tx_bd_ring_offset[i]);
1919                         ugeth->p_tx_bd_ring[i] = NULL;
1920                 }
1921         }
1922
1923 }
1924
1925 static void ucc_geth_memclean(struct ucc_geth_private *ugeth)
1926 {
1927         if (!ugeth)
1928                 return;
1929
1930         if (ugeth->uccf) {
1931                 ucc_fast_free(ugeth->uccf);
1932                 ugeth->uccf = NULL;
1933         }
1934
1935         if (ugeth->p_thread_data_tx) {
1936                 qe_muram_free(ugeth->thread_dat_tx_offset);
1937                 ugeth->p_thread_data_tx = NULL;
1938         }
1939         if (ugeth->p_thread_data_rx) {
1940                 qe_muram_free(ugeth->thread_dat_rx_offset);
1941                 ugeth->p_thread_data_rx = NULL;
1942         }
1943         if (ugeth->p_exf_glbl_param) {
1944                 qe_muram_free(ugeth->exf_glbl_param_offset);
1945                 ugeth->p_exf_glbl_param = NULL;
1946         }
1947         if (ugeth->p_rx_glbl_pram) {
1948                 qe_muram_free(ugeth->rx_glbl_pram_offset);
1949                 ugeth->p_rx_glbl_pram = NULL;
1950         }
1951         if (ugeth->p_tx_glbl_pram) {
1952                 qe_muram_free(ugeth->tx_glbl_pram_offset);
1953                 ugeth->p_tx_glbl_pram = NULL;
1954         }
1955         if (ugeth->p_send_q_mem_reg) {
1956                 qe_muram_free(ugeth->send_q_mem_reg_offset);
1957                 ugeth->p_send_q_mem_reg = NULL;
1958         }
1959         if (ugeth->p_scheduler) {
1960                 qe_muram_free(ugeth->scheduler_offset);
1961                 ugeth->p_scheduler = NULL;
1962         }
1963         if (ugeth->p_tx_fw_statistics_pram) {
1964                 qe_muram_free(ugeth->tx_fw_statistics_pram_offset);
1965                 ugeth->p_tx_fw_statistics_pram = NULL;
1966         }
1967         if (ugeth->p_rx_fw_statistics_pram) {
1968                 qe_muram_free(ugeth->rx_fw_statistics_pram_offset);
1969                 ugeth->p_rx_fw_statistics_pram = NULL;
1970         }
1971         if (ugeth->p_rx_irq_coalescing_tbl) {
1972                 qe_muram_free(ugeth->rx_irq_coalescing_tbl_offset);
1973                 ugeth->p_rx_irq_coalescing_tbl = NULL;
1974         }
1975         if (ugeth->p_rx_bd_qs_tbl) {
1976                 qe_muram_free(ugeth->rx_bd_qs_tbl_offset);
1977                 ugeth->p_rx_bd_qs_tbl = NULL;
1978         }
1979         if (ugeth->p_init_enet_param_shadow) {
1980                 return_init_enet_entries(ugeth,
1981                                          &(ugeth->p_init_enet_param_shadow->
1982                                            rxthread[0]),
1983                                          ENET_INIT_PARAM_MAX_ENTRIES_RX,
1984                                          ugeth->ug_info->riscRx, 1);
1985                 return_init_enet_entries(ugeth,
1986                                          &(ugeth->p_init_enet_param_shadow->
1987                                            txthread[0]),
1988                                          ENET_INIT_PARAM_MAX_ENTRIES_TX,
1989                                          ugeth->ug_info->riscTx, 0);
1990                 kfree(ugeth->p_init_enet_param_shadow);
1991                 ugeth->p_init_enet_param_shadow = NULL;
1992         }
1993         ucc_geth_free_tx(ugeth);
1994         ucc_geth_free_rx(ugeth);
1995         while (!list_empty(&ugeth->group_hash_q))
1996                 put_enet_addr_container(ENET_ADDR_CONT_ENTRY
1997                                         (dequeue(&ugeth->group_hash_q)));
1998         while (!list_empty(&ugeth->ind_hash_q))
1999                 put_enet_addr_container(ENET_ADDR_CONT_ENTRY
2000                                         (dequeue(&ugeth->ind_hash_q)));
2001         if (ugeth->ug_regs) {
2002                 iounmap(ugeth->ug_regs);
2003                 ugeth->ug_regs = NULL;
2004         }
2005 }
2006
2007 static void ucc_geth_set_multi(struct net_device *dev)
2008 {
2009         struct ucc_geth_private *ugeth;
2010         struct netdev_hw_addr *ha;
2011         struct ucc_fast __iomem *uf_regs;
2012         struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
2013
2014         ugeth = netdev_priv(dev);
2015
2016         uf_regs = ugeth->uccf->uf_regs;
2017
2018         if (dev->flags & IFF_PROMISC) {
2019                 setbits32(&uf_regs->upsmr, UCC_GETH_UPSMR_PRO);
2020         } else {
2021                 clrbits32(&uf_regs->upsmr, UCC_GETH_UPSMR_PRO);
2022
2023                 p_82xx_addr_filt =
2024                     (struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->
2025                     p_rx_glbl_pram->addressfiltering;
2026
2027                 if (dev->flags & IFF_ALLMULTI) {
2028                         /* Catch all multicast addresses, so set the
2029                          * filter to all 1's.
2030                          */
2031                         out_be32(&p_82xx_addr_filt->gaddr_h, 0xffffffff);
2032                         out_be32(&p_82xx_addr_filt->gaddr_l, 0xffffffff);
2033                 } else {
2034                         /* Clear filter and add the addresses in the list.
2035                          */
2036                         out_be32(&p_82xx_addr_filt->gaddr_h, 0x0);
2037                         out_be32(&p_82xx_addr_filt->gaddr_l, 0x0);
2038
2039                         netdev_for_each_mc_addr(ha, dev) {
2040                                 /* Ask CPM to run CRC and set bit in
2041                                  * filter mask.
2042                                  */
2043                                 hw_add_addr_in_hash(ugeth, ha->addr);
2044                         }
2045                 }
2046         }
2047 }
2048
2049 static void ucc_geth_stop(struct ucc_geth_private *ugeth)
2050 {
2051         struct ucc_geth __iomem *ug_regs = ugeth->ug_regs;
2052         struct phy_device *phydev = ugeth->phydev;
2053
2054         ugeth_vdbg("%s: IN", __func__);
2055
2056         /*
2057          * Tell the kernel the link is down.
2058          * Must be done before disabling the controller
2059          * or deadlock may happen.
2060          */
2061         phy_stop(phydev);
2062
2063         /* Disable the controller */
2064         ugeth_disable(ugeth, COMM_DIR_RX_AND_TX);
2065
2066         /* Mask all interrupts */
2067         out_be32(ugeth->uccf->p_uccm, 0x00000000);
2068
2069         /* Clear all interrupts */
2070         out_be32(ugeth->uccf->p_ucce, 0xffffffff);
2071
2072         /* Disable Rx and Tx */
2073         clrbits32(&ug_regs->maccfg1, MACCFG1_ENABLE_RX | MACCFG1_ENABLE_TX);
2074
2075         ucc_geth_memclean(ugeth);
2076 }
2077
2078 static int ucc_struct_init(struct ucc_geth_private *ugeth)
2079 {
2080         struct ucc_geth_info *ug_info;
2081         struct ucc_fast_info *uf_info;
2082         int i;
2083
2084         ug_info = ugeth->ug_info;
2085         uf_info = &ug_info->uf_info;
2086
2087         if (!((uf_info->bd_mem_part == MEM_PART_SYSTEM) ||
2088               (uf_info->bd_mem_part == MEM_PART_MURAM))) {
2089                 if (netif_msg_probe(ugeth))
2090                         pr_err("Bad memory partition value\n");
2091                 return -EINVAL;
2092         }
2093
2094         /* Rx BD lengths */
2095         for (i = 0; i < ug_info->numQueuesRx; i++) {
2096                 if ((ug_info->bdRingLenRx[i] < UCC_GETH_RX_BD_RING_SIZE_MIN) ||
2097                     (ug_info->bdRingLenRx[i] %
2098                      UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT)) {
2099                         if (netif_msg_probe(ugeth))
2100                                 pr_err("Rx BD ring length must be multiple of 4, no smaller than 8\n");
2101                         return -EINVAL;
2102                 }
2103         }
2104
2105         /* Tx BD lengths */
2106         for (i = 0; i < ug_info->numQueuesTx; i++) {
2107                 if (ug_info->bdRingLenTx[i] < UCC_GETH_TX_BD_RING_SIZE_MIN) {
2108                         if (netif_msg_probe(ugeth))
2109                                 pr_err("Tx BD ring length must be no smaller than 2\n");
2110                         return -EINVAL;
2111                 }
2112         }
2113
2114         /* mrblr */
2115         if ((uf_info->max_rx_buf_length == 0) ||
2116             (uf_info->max_rx_buf_length % UCC_GETH_MRBLR_ALIGNMENT)) {
2117                 if (netif_msg_probe(ugeth))
2118                         pr_err("max_rx_buf_length must be non-zero multiple of 128\n");
2119                 return -EINVAL;
2120         }
2121
2122         /* num Tx queues */
2123         if (ug_info->numQueuesTx > NUM_TX_QUEUES) {
2124                 if (netif_msg_probe(ugeth))
2125                         pr_err("number of tx queues too large\n");
2126                 return -EINVAL;
2127         }
2128
2129         /* num Rx queues */
2130         if (ug_info->numQueuesRx > NUM_RX_QUEUES) {
2131                 if (netif_msg_probe(ugeth))
2132                         pr_err("number of rx queues too large\n");
2133                 return -EINVAL;
2134         }
2135
2136         /* l2qt */
2137         for (i = 0; i < UCC_GETH_VLAN_PRIORITY_MAX; i++) {
2138                 if (ug_info->l2qt[i] >= ug_info->numQueuesRx) {
2139                         if (netif_msg_probe(ugeth))
2140                                 pr_err("VLAN priority table entry must not be larger than number of Rx queues\n");
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                                 pr_err("IP priority table entry must not be larger than number of Rx queues\n");
2150                         return -EINVAL;
2151                 }
2152         }
2153
2154         if (ug_info->cam && !ug_info->ecamptr) {
2155                 if (netif_msg_probe(ugeth))
2156                         pr_err("If cam mode is chosen, must supply cam ptr\n");
2157                 return -EINVAL;
2158         }
2159
2160         if ((ug_info->numStationAddresses !=
2161              UCC_GETH_NUM_OF_STATION_ADDRESSES_1) &&
2162             ug_info->rxExtendedFiltering) {
2163                 if (netif_msg_probe(ugeth))
2164                         pr_err("Number of station addresses greater than 1 not allowed in extended parsing mode\n");
2165                 return -EINVAL;
2166         }
2167
2168         /* Generate uccm_mask for receive */
2169         uf_info->uccm_mask = ug_info->eventRegMask & UCCE_OTHER;/* Errors */
2170         for (i = 0; i < ug_info->numQueuesRx; i++)
2171                 uf_info->uccm_mask |= (UCC_GETH_UCCE_RXF0 << i);
2172
2173         for (i = 0; i < ug_info->numQueuesTx; i++)
2174                 uf_info->uccm_mask |= (UCC_GETH_UCCE_TXB0 << i);
2175         /* Initialize the general fast UCC block. */
2176         if (ucc_fast_init(uf_info, &ugeth->uccf)) {
2177                 if (netif_msg_probe(ugeth))
2178                         pr_err("Failed to init uccf\n");
2179                 return -ENOMEM;
2180         }
2181
2182         /* read the number of risc engines, update the riscTx and riscRx
2183          * if there are 4 riscs in QE
2184          */
2185         if (qe_get_num_of_risc() == 4) {
2186                 ug_info->riscTx = QE_RISC_ALLOCATION_FOUR_RISCS;
2187                 ug_info->riscRx = QE_RISC_ALLOCATION_FOUR_RISCS;
2188         }
2189
2190         ugeth->ug_regs = ioremap(uf_info->regs, sizeof(*ugeth->ug_regs));
2191         if (!ugeth->ug_regs) {
2192                 if (netif_msg_probe(ugeth))
2193                         pr_err("Failed to ioremap regs\n");
2194                 return -ENOMEM;
2195         }
2196
2197         return 0;
2198 }
2199
2200 static int ucc_geth_alloc_tx(struct ucc_geth_private *ugeth)
2201 {
2202         struct ucc_geth_info *ug_info;
2203         struct ucc_fast_info *uf_info;
2204         int length;
2205         u16 i, j;
2206         u8 __iomem *bd;
2207
2208         ug_info = ugeth->ug_info;
2209         uf_info = &ug_info->uf_info;
2210
2211         /* Allocate Tx bds */
2212         for (j = 0; j < ug_info->numQueuesTx; j++) {
2213                 /* Allocate in multiple of
2214                    UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT,
2215                    according to spec */
2216                 length = ((ug_info->bdRingLenTx[j] * sizeof(struct qe_bd))
2217                           / UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT)
2218                     * UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
2219                 if ((ug_info->bdRingLenTx[j] * sizeof(struct qe_bd)) %
2220                     UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT)
2221                         length += UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
2222                 if (uf_info->bd_mem_part == MEM_PART_SYSTEM) {
2223                         u32 align = 4;
2224                         if (UCC_GETH_TX_BD_RING_ALIGNMENT > 4)
2225                                 align = UCC_GETH_TX_BD_RING_ALIGNMENT;
2226                         ugeth->tx_bd_ring_offset[j] =
2227                                 (u32) kmalloc((u32) (length + align), GFP_KERNEL);
2228
2229                         if (ugeth->tx_bd_ring_offset[j] != 0)
2230                                 ugeth->p_tx_bd_ring[j] =
2231                                         (u8 __iomem *)((ugeth->tx_bd_ring_offset[j] +
2232                                         align) & ~(align - 1));
2233                 } else if (uf_info->bd_mem_part == MEM_PART_MURAM) {
2234                         ugeth->tx_bd_ring_offset[j] =
2235                             qe_muram_alloc(length,
2236                                            UCC_GETH_TX_BD_RING_ALIGNMENT);
2237                         if (!IS_ERR_VALUE(ugeth->tx_bd_ring_offset[j]))
2238                                 ugeth->p_tx_bd_ring[j] =
2239                                     (u8 __iomem *) qe_muram_addr(ugeth->
2240                                                          tx_bd_ring_offset[j]);
2241                 }
2242                 if (!ugeth->p_tx_bd_ring[j]) {
2243                         if (netif_msg_ifup(ugeth))
2244                                 pr_err("Can not allocate memory for Tx bd rings\n");
2245                         return -ENOMEM;
2246                 }
2247                 /* Zero unused end of bd ring, according to spec */
2248                 memset_io((void __iomem *)(ugeth->p_tx_bd_ring[j] +
2249                        ug_info->bdRingLenTx[j] * sizeof(struct qe_bd)), 0,
2250                        length - ug_info->bdRingLenTx[j] * sizeof(struct qe_bd));
2251         }
2252
2253         /* Init Tx bds */
2254         for (j = 0; j < ug_info->numQueuesTx; j++) {
2255                 /* Setup the skbuff rings */
2256                 ugeth->tx_skbuff[j] = kmalloc(sizeof(struct sk_buff *) *
2257                                               ugeth->ug_info->bdRingLenTx[j],
2258                                               GFP_KERNEL);
2259
2260                 if (ugeth->tx_skbuff[j] == NULL) {
2261                         if (netif_msg_ifup(ugeth))
2262                                 pr_err("Could not allocate tx_skbuff\n");
2263                         return -ENOMEM;
2264                 }
2265
2266                 for (i = 0; i < ugeth->ug_info->bdRingLenTx[j]; i++)
2267                         ugeth->tx_skbuff[j][i] = NULL;
2268
2269                 ugeth->skb_curtx[j] = ugeth->skb_dirtytx[j] = 0;
2270                 bd = ugeth->confBd[j] = ugeth->txBd[j] = ugeth->p_tx_bd_ring[j];
2271                 for (i = 0; i < ug_info->bdRingLenTx[j]; i++) {
2272                         /* clear bd buffer */
2273                         out_be32(&((struct qe_bd __iomem *)bd)->buf, 0);
2274                         /* set bd status and length */
2275                         out_be32((u32 __iomem *)bd, 0);
2276                         bd += sizeof(struct qe_bd);
2277                 }
2278                 bd -= sizeof(struct qe_bd);
2279                 /* set bd status and length */
2280                 out_be32((u32 __iomem *)bd, T_W); /* for last BD set Wrap bit */
2281         }
2282
2283         return 0;
2284 }
2285
2286 static int ucc_geth_alloc_rx(struct ucc_geth_private *ugeth)
2287 {
2288         struct ucc_geth_info *ug_info;
2289         struct ucc_fast_info *uf_info;
2290         int length;
2291         u16 i, j;
2292         u8 __iomem *bd;
2293
2294         ug_info = ugeth->ug_info;
2295         uf_info = &ug_info->uf_info;
2296
2297         /* Allocate Rx bds */
2298         for (j = 0; j < ug_info->numQueuesRx; j++) {
2299                 length = ug_info->bdRingLenRx[j] * sizeof(struct qe_bd);
2300                 if (uf_info->bd_mem_part == MEM_PART_SYSTEM) {
2301                         u32 align = 4;
2302                         if (UCC_GETH_RX_BD_RING_ALIGNMENT > 4)
2303                                 align = UCC_GETH_RX_BD_RING_ALIGNMENT;
2304                         ugeth->rx_bd_ring_offset[j] =
2305                                 (u32) kmalloc((u32) (length + align), GFP_KERNEL);
2306                         if (ugeth->rx_bd_ring_offset[j] != 0)
2307                                 ugeth->p_rx_bd_ring[j] =
2308                                         (u8 __iomem *)((ugeth->rx_bd_ring_offset[j] +
2309                                         align) & ~(align - 1));
2310                 } else if (uf_info->bd_mem_part == MEM_PART_MURAM) {
2311                         ugeth->rx_bd_ring_offset[j] =
2312                             qe_muram_alloc(length,
2313                                            UCC_GETH_RX_BD_RING_ALIGNMENT);
2314                         if (!IS_ERR_VALUE(ugeth->rx_bd_ring_offset[j]))
2315                                 ugeth->p_rx_bd_ring[j] =
2316                                     (u8 __iomem *) qe_muram_addr(ugeth->
2317                                                          rx_bd_ring_offset[j]);
2318                 }
2319                 if (!ugeth->p_rx_bd_ring[j]) {
2320                         if (netif_msg_ifup(ugeth))
2321                                 pr_err("Can not allocate memory for Rx bd rings\n");
2322                         return -ENOMEM;
2323                 }
2324         }
2325
2326         /* Init Rx bds */
2327         for (j = 0; j < ug_info->numQueuesRx; j++) {
2328                 /* Setup the skbuff rings */
2329                 ugeth->rx_skbuff[j] = kmalloc(sizeof(struct sk_buff *) *
2330                                               ugeth->ug_info->bdRingLenRx[j],
2331                                               GFP_KERNEL);
2332
2333                 if (ugeth->rx_skbuff[j] == NULL) {
2334                         if (netif_msg_ifup(ugeth))
2335                                 pr_err("Could not allocate rx_skbuff\n");
2336                         return -ENOMEM;
2337                 }
2338
2339                 for (i = 0; i < ugeth->ug_info->bdRingLenRx[j]; i++)
2340                         ugeth->rx_skbuff[j][i] = NULL;
2341
2342                 ugeth->skb_currx[j] = 0;
2343                 bd = ugeth->rxBd[j] = ugeth->p_rx_bd_ring[j];
2344                 for (i = 0; i < ug_info->bdRingLenRx[j]; i++) {
2345                         /* set bd status and length */
2346                         out_be32((u32 __iomem *)bd, R_I);
2347                         /* clear bd buffer */
2348                         out_be32(&((struct qe_bd __iomem *)bd)->buf, 0);
2349                         bd += sizeof(struct qe_bd);
2350                 }
2351                 bd -= sizeof(struct qe_bd);
2352                 /* set bd status and length */
2353                 out_be32((u32 __iomem *)bd, R_W); /* for last BD set Wrap bit */
2354         }
2355
2356         return 0;
2357 }
2358
2359 static int ucc_geth_startup(struct ucc_geth_private *ugeth)
2360 {
2361         struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
2362         struct ucc_geth_init_pram __iomem *p_init_enet_pram;
2363         struct ucc_fast_private *uccf;
2364         struct ucc_geth_info *ug_info;
2365         struct ucc_fast_info *uf_info;
2366         struct ucc_fast __iomem *uf_regs;
2367         struct ucc_geth __iomem *ug_regs;
2368         int ret_val = -EINVAL;
2369         u32 remoder = UCC_GETH_REMODER_INIT;
2370         u32 init_enet_pram_offset, cecr_subblock, command;
2371         u32 ifstat, i, j, size, l2qt, l3qt;
2372         u16 temoder = UCC_GETH_TEMODER_INIT;
2373         u16 test;
2374         u8 function_code = 0;
2375         u8 __iomem *endOfRing;
2376         u8 numThreadsRxNumerical, numThreadsTxNumerical;
2377
2378         ugeth_vdbg("%s: IN", __func__);
2379         uccf = ugeth->uccf;
2380         ug_info = ugeth->ug_info;
2381         uf_info = &ug_info->uf_info;
2382         uf_regs = uccf->uf_regs;
2383         ug_regs = ugeth->ug_regs;
2384
2385         switch (ug_info->numThreadsRx) {
2386         case UCC_GETH_NUM_OF_THREADS_1:
2387                 numThreadsRxNumerical = 1;
2388                 break;
2389         case UCC_GETH_NUM_OF_THREADS_2:
2390                 numThreadsRxNumerical = 2;
2391                 break;
2392         case UCC_GETH_NUM_OF_THREADS_4:
2393                 numThreadsRxNumerical = 4;
2394                 break;
2395         case UCC_GETH_NUM_OF_THREADS_6:
2396                 numThreadsRxNumerical = 6;
2397                 break;
2398         case UCC_GETH_NUM_OF_THREADS_8:
2399                 numThreadsRxNumerical = 8;
2400                 break;
2401         default:
2402                 if (netif_msg_ifup(ugeth))
2403                         pr_err("Bad number of Rx threads value\n");
2404                 return -EINVAL;
2405                 break;
2406         }
2407
2408         switch (ug_info->numThreadsTx) {
2409         case UCC_GETH_NUM_OF_THREADS_1:
2410                 numThreadsTxNumerical = 1;
2411                 break;
2412         case UCC_GETH_NUM_OF_THREADS_2:
2413                 numThreadsTxNumerical = 2;
2414                 break;
2415         case UCC_GETH_NUM_OF_THREADS_4:
2416                 numThreadsTxNumerical = 4;
2417                 break;
2418         case UCC_GETH_NUM_OF_THREADS_6:
2419                 numThreadsTxNumerical = 6;
2420                 break;
2421         case UCC_GETH_NUM_OF_THREADS_8:
2422                 numThreadsTxNumerical = 8;
2423                 break;
2424         default:
2425                 if (netif_msg_ifup(ugeth))
2426                         pr_err("Bad number of Tx threads value\n");
2427                 return -EINVAL;
2428                 break;
2429         }
2430
2431         /* Calculate rx_extended_features */
2432         ugeth->rx_non_dynamic_extended_features = ug_info->ipCheckSumCheck ||
2433             ug_info->ipAddressAlignment ||
2434             (ug_info->numStationAddresses !=
2435              UCC_GETH_NUM_OF_STATION_ADDRESSES_1);
2436
2437         ugeth->rx_extended_features = ugeth->rx_non_dynamic_extended_features ||
2438                 (ug_info->vlanOperationTagged != UCC_GETH_VLAN_OPERATION_TAGGED_NOP) ||
2439                 (ug_info->vlanOperationNonTagged !=
2440                  UCC_GETH_VLAN_OPERATION_NON_TAGGED_NOP);
2441
2442         init_default_reg_vals(&uf_regs->upsmr,
2443                               &ug_regs->maccfg1, &ug_regs->maccfg2);
2444
2445         /*                    Set UPSMR                      */
2446         /* For more details see the hardware spec.           */
2447         init_rx_parameters(ug_info->bro,
2448                            ug_info->rsh, ug_info->pro, &uf_regs->upsmr);
2449
2450         /* We're going to ignore other registers for now, */
2451         /* except as needed to get up and running         */
2452
2453         /*                    Set MACCFG1                    */
2454         /* For more details see the hardware spec.           */
2455         init_flow_control_params(ug_info->aufc,
2456                                  ug_info->receiveFlowControl,
2457                                  ug_info->transmitFlowControl,
2458                                  ug_info->pausePeriod,
2459                                  ug_info->extensionField,
2460                                  &uf_regs->upsmr,
2461                                  &ug_regs->uempr, &ug_regs->maccfg1);
2462
2463         setbits32(&ug_regs->maccfg1, MACCFG1_ENABLE_RX | MACCFG1_ENABLE_TX);
2464
2465         /*                    Set IPGIFG                     */
2466         /* For more details see the hardware spec.           */
2467         ret_val = init_inter_frame_gap_params(ug_info->nonBackToBackIfgPart1,
2468                                               ug_info->nonBackToBackIfgPart2,
2469                                               ug_info->
2470                                               miminumInterFrameGapEnforcement,
2471                                               ug_info->backToBackInterFrameGap,
2472                                               &ug_regs->ipgifg);
2473         if (ret_val != 0) {
2474                 if (netif_msg_ifup(ugeth))
2475                         pr_err("IPGIFG initialization parameter too large\n");
2476                 return ret_val;
2477         }
2478
2479         /*                    Set HAFDUP                     */
2480         /* For more details see the hardware spec.           */
2481         ret_val = init_half_duplex_params(ug_info->altBeb,
2482                                           ug_info->backPressureNoBackoff,
2483                                           ug_info->noBackoff,
2484                                           ug_info->excessDefer,
2485                                           ug_info->altBebTruncation,
2486                                           ug_info->maxRetransmission,
2487                                           ug_info->collisionWindow,
2488                                           &ug_regs->hafdup);
2489         if (ret_val != 0) {
2490                 if (netif_msg_ifup(ugeth))
2491                         pr_err("Half Duplex initialization parameter too large\n");
2492                 return ret_val;
2493         }
2494
2495         /*                    Set IFSTAT                     */
2496         /* For more details see the hardware spec.           */
2497         /* Read only - resets upon read                      */
2498         ifstat = in_be32(&ug_regs->ifstat);
2499
2500         /*                    Clear UEMPR                    */
2501         /* For more details see the hardware spec.           */
2502         out_be32(&ug_regs->uempr, 0);
2503
2504         /*                    Set UESCR                      */
2505         /* For more details see the hardware spec.           */
2506         init_hw_statistics_gathering_mode((ug_info->statisticsMode &
2507                                 UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE),
2508                                 0, &uf_regs->upsmr, &ug_regs->uescr);
2509
2510         ret_val = ucc_geth_alloc_tx(ugeth);
2511         if (ret_val != 0)
2512                 return ret_val;
2513
2514         ret_val = ucc_geth_alloc_rx(ugeth);
2515         if (ret_val != 0)
2516                 return ret_val;
2517
2518         /*
2519          * Global PRAM
2520          */
2521         /* Tx global PRAM */
2522         /* Allocate global tx parameter RAM page */
2523         ugeth->tx_glbl_pram_offset =
2524             qe_muram_alloc(sizeof(struct ucc_geth_tx_global_pram),
2525                            UCC_GETH_TX_GLOBAL_PRAM_ALIGNMENT);
2526         if (IS_ERR_VALUE(ugeth->tx_glbl_pram_offset)) {
2527                 if (netif_msg_ifup(ugeth))
2528                         pr_err("Can not allocate DPRAM memory for p_tx_glbl_pram\n");
2529                 return -ENOMEM;
2530         }
2531         ugeth->p_tx_glbl_pram =
2532             (struct ucc_geth_tx_global_pram __iomem *) qe_muram_addr(ugeth->
2533                                                         tx_glbl_pram_offset);
2534         /* Zero out p_tx_glbl_pram */
2535         memset_io((void __iomem *)ugeth->p_tx_glbl_pram, 0, sizeof(struct ucc_geth_tx_global_pram));
2536
2537         /* Fill global PRAM */
2538
2539         /* TQPTR */
2540         /* Size varies with number of Tx threads */
2541         ugeth->thread_dat_tx_offset =
2542             qe_muram_alloc(numThreadsTxNumerical *
2543                            sizeof(struct ucc_geth_thread_data_tx) +
2544                            32 * (numThreadsTxNumerical == 1),
2545                            UCC_GETH_THREAD_DATA_ALIGNMENT);
2546         if (IS_ERR_VALUE(ugeth->thread_dat_tx_offset)) {
2547                 if (netif_msg_ifup(ugeth))
2548                         pr_err("Can not allocate DPRAM memory for p_thread_data_tx\n");
2549                 return -ENOMEM;
2550         }
2551
2552         ugeth->p_thread_data_tx =
2553             (struct ucc_geth_thread_data_tx __iomem *) qe_muram_addr(ugeth->
2554                                                         thread_dat_tx_offset);
2555         out_be32(&ugeth->p_tx_glbl_pram->tqptr, ugeth->thread_dat_tx_offset);
2556
2557         /* vtagtable */
2558         for (i = 0; i < UCC_GETH_TX_VTAG_TABLE_ENTRY_MAX; i++)
2559                 out_be32(&ugeth->p_tx_glbl_pram->vtagtable[i],
2560                          ug_info->vtagtable[i]);
2561
2562         /* iphoffset */
2563         for (i = 0; i < TX_IP_OFFSET_ENTRY_MAX; i++)
2564                 out_8(&ugeth->p_tx_glbl_pram->iphoffset[i],
2565                                 ug_info->iphoffset[i]);
2566
2567         /* SQPTR */
2568         /* Size varies with number of Tx queues */
2569         ugeth->send_q_mem_reg_offset =
2570             qe_muram_alloc(ug_info->numQueuesTx *
2571                            sizeof(struct ucc_geth_send_queue_qd),
2572                            UCC_GETH_SEND_QUEUE_QUEUE_DESCRIPTOR_ALIGNMENT);
2573         if (IS_ERR_VALUE(ugeth->send_q_mem_reg_offset)) {
2574                 if (netif_msg_ifup(ugeth))
2575                         pr_err("Can not allocate DPRAM memory for p_send_q_mem_reg\n");
2576                 return -ENOMEM;
2577         }
2578
2579         ugeth->p_send_q_mem_reg =
2580             (struct ucc_geth_send_queue_mem_region __iomem *) qe_muram_addr(ugeth->
2581                         send_q_mem_reg_offset);
2582         out_be32(&ugeth->p_tx_glbl_pram->sqptr, ugeth->send_q_mem_reg_offset);
2583
2584         /* Setup the table */
2585         /* Assume BD rings are already established */
2586         for (i = 0; i < ug_info->numQueuesTx; i++) {
2587                 endOfRing =
2588                     ugeth->p_tx_bd_ring[i] + (ug_info->bdRingLenTx[i] -
2589                                               1) * sizeof(struct qe_bd);
2590                 if (ugeth->ug_info->uf_info.bd_mem_part == MEM_PART_SYSTEM) {
2591                         out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].bd_ring_base,
2592                                  (u32) virt_to_phys(ugeth->p_tx_bd_ring[i]));
2593                         out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].
2594                                  last_bd_completed_address,
2595                                  (u32) virt_to_phys(endOfRing));
2596                 } else if (ugeth->ug_info->uf_info.bd_mem_part ==
2597                            MEM_PART_MURAM) {
2598                         out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].bd_ring_base,
2599                                  (u32) immrbar_virt_to_phys(ugeth->
2600                                                             p_tx_bd_ring[i]));
2601                         out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].
2602                                  last_bd_completed_address,
2603                                  (u32) immrbar_virt_to_phys(endOfRing));
2604                 }
2605         }
2606
2607         /* schedulerbasepointer */
2608
2609         if (ug_info->numQueuesTx > 1) {
2610         /* scheduler exists only if more than 1 tx queue */
2611                 ugeth->scheduler_offset =
2612                     qe_muram_alloc(sizeof(struct ucc_geth_scheduler),
2613                                    UCC_GETH_SCHEDULER_ALIGNMENT);
2614                 if (IS_ERR_VALUE(ugeth->scheduler_offset)) {
2615                         if (netif_msg_ifup(ugeth))
2616                                 pr_err("Can not allocate DPRAM memory for p_scheduler\n");
2617                         return -ENOMEM;
2618                 }
2619
2620                 ugeth->p_scheduler =
2621                     (struct ucc_geth_scheduler __iomem *) qe_muram_addr(ugeth->
2622                                                            scheduler_offset);
2623                 out_be32(&ugeth->p_tx_glbl_pram->schedulerbasepointer,
2624                          ugeth->scheduler_offset);
2625                 /* Zero out p_scheduler */
2626                 memset_io((void __iomem *)ugeth->p_scheduler, 0, sizeof(struct ucc_geth_scheduler));
2627
2628                 /* Set values in scheduler */
2629                 out_be32(&ugeth->p_scheduler->mblinterval,
2630                          ug_info->mblinterval);
2631                 out_be16(&ugeth->p_scheduler->nortsrbytetime,
2632                          ug_info->nortsrbytetime);
2633                 out_8(&ugeth->p_scheduler->fracsiz, ug_info->fracsiz);
2634                 out_8(&ugeth->p_scheduler->strictpriorityq,
2635                                 ug_info->strictpriorityq);
2636                 out_8(&ugeth->p_scheduler->txasap, ug_info->txasap);
2637                 out_8(&ugeth->p_scheduler->extrabw, ug_info->extrabw);
2638                 for (i = 0; i < NUM_TX_QUEUES; i++)
2639                         out_8(&ugeth->p_scheduler->weightfactor[i],
2640                             ug_info->weightfactor[i]);
2641
2642                 /* Set pointers to cpucount registers in scheduler */
2643                 ugeth->p_cpucount[0] = &(ugeth->p_scheduler->cpucount0);
2644                 ugeth->p_cpucount[1] = &(ugeth->p_scheduler->cpucount1);
2645                 ugeth->p_cpucount[2] = &(ugeth->p_scheduler->cpucount2);
2646                 ugeth->p_cpucount[3] = &(ugeth->p_scheduler->cpucount3);
2647                 ugeth->p_cpucount[4] = &(ugeth->p_scheduler->cpucount4);
2648                 ugeth->p_cpucount[5] = &(ugeth->p_scheduler->cpucount5);
2649                 ugeth->p_cpucount[6] = &(ugeth->p_scheduler->cpucount6);
2650                 ugeth->p_cpucount[7] = &(ugeth->p_scheduler->cpucount7);
2651         }
2652
2653         /* schedulerbasepointer */
2654         /* TxRMON_PTR (statistics) */
2655         if (ug_info->
2656             statisticsMode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) {
2657                 ugeth->tx_fw_statistics_pram_offset =
2658                     qe_muram_alloc(sizeof
2659                                    (struct ucc_geth_tx_firmware_statistics_pram),
2660                                    UCC_GETH_TX_STATISTICS_ALIGNMENT);
2661                 if (IS_ERR_VALUE(ugeth->tx_fw_statistics_pram_offset)) {
2662                         if (netif_msg_ifup(ugeth))
2663                                 pr_err("Can not allocate DPRAM memory for p_tx_fw_statistics_pram\n");
2664                         return -ENOMEM;
2665                 }
2666                 ugeth->p_tx_fw_statistics_pram =
2667                     (struct ucc_geth_tx_firmware_statistics_pram __iomem *)
2668                     qe_muram_addr(ugeth->tx_fw_statistics_pram_offset);
2669                 /* Zero out p_tx_fw_statistics_pram */
2670                 memset_io((void __iomem *)ugeth->p_tx_fw_statistics_pram,
2671                        0, sizeof(struct ucc_geth_tx_firmware_statistics_pram));
2672         }
2673
2674         /* temoder */
2675         /* Already has speed set */
2676
2677         if (ug_info->numQueuesTx > 1)
2678                 temoder |= TEMODER_SCHEDULER_ENABLE;
2679         if (ug_info->ipCheckSumGenerate)
2680                 temoder |= TEMODER_IP_CHECKSUM_GENERATE;
2681         temoder |= ((ug_info->numQueuesTx - 1) << TEMODER_NUM_OF_QUEUES_SHIFT);
2682         out_be16(&ugeth->p_tx_glbl_pram->temoder, temoder);
2683
2684         test = in_be16(&ugeth->p_tx_glbl_pram->temoder);
2685
2686         /* Function code register value to be used later */
2687         function_code = UCC_BMR_BO_BE | UCC_BMR_GBL;
2688         /* Required for QE */
2689
2690         /* function code register */
2691         out_be32(&ugeth->p_tx_glbl_pram->tstate, ((u32) function_code) << 24);
2692
2693         /* Rx global PRAM */
2694         /* Allocate global rx parameter RAM page */
2695         ugeth->rx_glbl_pram_offset =
2696             qe_muram_alloc(sizeof(struct ucc_geth_rx_global_pram),
2697                            UCC_GETH_RX_GLOBAL_PRAM_ALIGNMENT);
2698         if (IS_ERR_VALUE(ugeth->rx_glbl_pram_offset)) {
2699                 if (netif_msg_ifup(ugeth))
2700                         pr_err("Can not allocate DPRAM memory for p_rx_glbl_pram\n");
2701                 return -ENOMEM;
2702         }
2703         ugeth->p_rx_glbl_pram =
2704             (struct ucc_geth_rx_global_pram __iomem *) qe_muram_addr(ugeth->
2705                                                         rx_glbl_pram_offset);
2706         /* Zero out p_rx_glbl_pram */
2707         memset_io((void __iomem *)ugeth->p_rx_glbl_pram, 0, sizeof(struct ucc_geth_rx_global_pram));
2708
2709         /* Fill global PRAM */
2710
2711         /* RQPTR */
2712         /* Size varies with number of Rx threads */
2713         ugeth->thread_dat_rx_offset =
2714             qe_muram_alloc(numThreadsRxNumerical *
2715                            sizeof(struct ucc_geth_thread_data_rx),
2716                            UCC_GETH_THREAD_DATA_ALIGNMENT);
2717         if (IS_ERR_VALUE(ugeth->thread_dat_rx_offset)) {
2718                 if (netif_msg_ifup(ugeth))
2719                         pr_err("Can not allocate DPRAM memory for p_thread_data_rx\n");
2720                 return -ENOMEM;
2721         }
2722
2723         ugeth->p_thread_data_rx =
2724             (struct ucc_geth_thread_data_rx __iomem *) qe_muram_addr(ugeth->
2725                                                         thread_dat_rx_offset);
2726         out_be32(&ugeth->p_rx_glbl_pram->rqptr, ugeth->thread_dat_rx_offset);
2727
2728         /* typeorlen */
2729         out_be16(&ugeth->p_rx_glbl_pram->typeorlen, ug_info->typeorlen);
2730
2731         /* rxrmonbaseptr (statistics) */
2732         if (ug_info->
2733             statisticsMode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX) {
2734                 ugeth->rx_fw_statistics_pram_offset =
2735                     qe_muram_alloc(sizeof
2736                                    (struct ucc_geth_rx_firmware_statistics_pram),
2737                                    UCC_GETH_RX_STATISTICS_ALIGNMENT);
2738                 if (IS_ERR_VALUE(ugeth->rx_fw_statistics_pram_offset)) {
2739                         if (netif_msg_ifup(ugeth))
2740                                 pr_err("Can not allocate DPRAM memory for p_rx_fw_statistics_pram\n");
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                         pr_err("Can not allocate DPRAM memory for p_rx_irq_coalescing_tbl\n");
2761                 return -ENOMEM;
2762         }
2763
2764         ugeth->p_rx_irq_coalescing_tbl =
2765             (struct ucc_geth_rx_interrupt_coalescing_table __iomem *)
2766             qe_muram_addr(ugeth->rx_irq_coalescing_tbl_offset);
2767         out_be32(&ugeth->p_rx_glbl_pram->intcoalescingptr,
2768                  ugeth->rx_irq_coalescing_tbl_offset);
2769
2770         /* Fill interrupt coalescing table */
2771         for (i = 0; i < ug_info->numQueuesRx; i++) {
2772                 out_be32(&ugeth->p_rx_irq_coalescing_tbl->coalescingentry[i].
2773                          interruptcoalescingmaxvalue,
2774                          ug_info->interruptcoalescingmaxvalue[i]);
2775                 out_be32(&ugeth->p_rx_irq_coalescing_tbl->coalescingentry[i].
2776                          interruptcoalescingcounter,
2777                          ug_info->interruptcoalescingmaxvalue[i]);
2778         }
2779
2780         /* MRBLR */
2781         init_max_rx_buff_len(uf_info->max_rx_buf_length,
2782                              &ugeth->p_rx_glbl_pram->mrblr);
2783         /* MFLR */
2784         out_be16(&ugeth->p_rx_glbl_pram->mflr, ug_info->maxFrameLength);
2785         /* MINFLR */
2786         init_min_frame_len(ug_info->minFrameLength,
2787                            &ugeth->p_rx_glbl_pram->minflr,
2788                            &ugeth->p_rx_glbl_pram->mrblr);
2789         /* MAXD1 */
2790         out_be16(&ugeth->p_rx_glbl_pram->maxd1, ug_info->maxD1Length);
2791         /* MAXD2 */
2792         out_be16(&ugeth->p_rx_glbl_pram->maxd2, ug_info->maxD2Length);
2793
2794         /* l2qt */
2795         l2qt = 0;
2796         for (i = 0; i < UCC_GETH_VLAN_PRIORITY_MAX; i++)
2797                 l2qt |= (ug_info->l2qt[i] << (28 - 4 * i));
2798         out_be32(&ugeth->p_rx_glbl_pram->l2qt, l2qt);
2799
2800         /* l3qt */
2801         for (j = 0; j < UCC_GETH_IP_PRIORITY_MAX; j += 8) {
2802                 l3qt = 0;
2803                 for (i = 0; i < 8; i++)
2804                         l3qt |= (ug_info->l3qt[j + i] << (28 - 4 * i));
2805                 out_be32(&ugeth->p_rx_glbl_pram->l3qt[j/8], l3qt);
2806         }
2807
2808         /* vlantype */
2809         out_be16(&ugeth->p_rx_glbl_pram->vlantype, ug_info->vlantype);
2810
2811         /* vlantci */
2812         out_be16(&ugeth->p_rx_glbl_pram->vlantci, ug_info->vlantci);
2813
2814         /* ecamptr */
2815         out_be32(&ugeth->p_rx_glbl_pram->ecamptr, ug_info->ecamptr);
2816
2817         /* RBDQPTR */
2818         /* Size varies with number of Rx queues */
2819         ugeth->rx_bd_qs_tbl_offset =
2820             qe_muram_alloc(ug_info->numQueuesRx *
2821                            (sizeof(struct ucc_geth_rx_bd_queues_entry) +
2822                             sizeof(struct ucc_geth_rx_prefetched_bds)),
2823                            UCC_GETH_RX_BD_QUEUES_ALIGNMENT);
2824         if (IS_ERR_VALUE(ugeth->rx_bd_qs_tbl_offset)) {
2825                 if (netif_msg_ifup(ugeth))
2826                         pr_err("Can not allocate DPRAM memory for p_rx_bd_qs_tbl\n");
2827                 return -ENOMEM;
2828         }
2829
2830         ugeth->p_rx_bd_qs_tbl =
2831             (struct ucc_geth_rx_bd_queues_entry __iomem *) qe_muram_addr(ugeth->
2832                                     rx_bd_qs_tbl_offset);
2833         out_be32(&ugeth->p_rx_glbl_pram->rbdqptr, ugeth->rx_bd_qs_tbl_offset);
2834         /* Zero out p_rx_bd_qs_tbl */
2835         memset_io((void __iomem *)ugeth->p_rx_bd_qs_tbl,
2836                0,
2837                ug_info->numQueuesRx * (sizeof(struct ucc_geth_rx_bd_queues_entry) +
2838                                        sizeof(struct ucc_geth_rx_prefetched_bds)));
2839
2840         /* Setup the table */
2841         /* Assume BD rings are already established */
2842         for (i = 0; i < ug_info->numQueuesRx; i++) {
2843                 if (ugeth->ug_info->uf_info.bd_mem_part == MEM_PART_SYSTEM) {
2844                         out_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
2845                                  (u32) virt_to_phys(ugeth->p_rx_bd_ring[i]));
2846                 } else if (ugeth->ug_info->uf_info.bd_mem_part ==
2847                            MEM_PART_MURAM) {
2848                         out_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
2849                                  (u32) immrbar_virt_to_phys(ugeth->
2850                                                             p_rx_bd_ring[i]));
2851                 }
2852                 /* rest of fields handled by QE */
2853         }
2854
2855         /* remoder */
2856         /* Already has speed set */
2857
2858         if (ugeth->rx_extended_features)
2859                 remoder |= REMODER_RX_EXTENDED_FEATURES;
2860         if (ug_info->rxExtendedFiltering)
2861                 remoder |= REMODER_RX_EXTENDED_FILTERING;
2862         if (ug_info->dynamicMaxFrameLength)
2863                 remoder |= REMODER_DYNAMIC_MAX_FRAME_LENGTH;
2864         if (ug_info->dynamicMinFrameLength)
2865                 remoder |= REMODER_DYNAMIC_MIN_FRAME_LENGTH;
2866         remoder |=
2867             ug_info->vlanOperationTagged << REMODER_VLAN_OPERATION_TAGGED_SHIFT;
2868         remoder |=
2869             ug_info->
2870             vlanOperationNonTagged << REMODER_VLAN_OPERATION_NON_TAGGED_SHIFT;
2871         remoder |= ug_info->rxQoSMode << REMODER_RX_QOS_MODE_SHIFT;
2872         remoder |= ((ug_info->numQueuesRx - 1) << REMODER_NUM_OF_QUEUES_SHIFT);
2873         if (ug_info->ipCheckSumCheck)
2874                 remoder |= REMODER_IP_CHECKSUM_CHECK;
2875         if (ug_info->ipAddressAlignment)
2876                 remoder |= REMODER_IP_ADDRESS_ALIGNMENT;
2877         out_be32(&ugeth->p_rx_glbl_pram->remoder, remoder);
2878
2879         /* Note that this function must be called */
2880         /* ONLY AFTER p_tx_fw_statistics_pram */
2881         /* andp_UccGethRxFirmwareStatisticsPram are allocated ! */
2882         init_firmware_statistics_gathering_mode((ug_info->
2883                 statisticsMode &
2884                 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX),
2885                 (ug_info->statisticsMode &
2886                 UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX),
2887                 &ugeth->p_tx_glbl_pram->txrmonbaseptr,
2888                 ugeth->tx_fw_statistics_pram_offset,
2889                 &ugeth->p_rx_glbl_pram->rxrmonbaseptr,
2890                 ugeth->rx_fw_statistics_pram_offset,
2891                 &ugeth->p_tx_glbl_pram->temoder,
2892                 &ugeth->p_rx_glbl_pram->remoder);
2893
2894         /* function code register */
2895         out_8(&ugeth->p_rx_glbl_pram->rstate, function_code);
2896
2897         /* initialize extended filtering */
2898         if (ug_info->rxExtendedFiltering) {
2899                 if (!ug_info->extendedFilteringChainPointer) {
2900                         if (netif_msg_ifup(ugeth))
2901                                 pr_err("Null Extended Filtering Chain Pointer\n");
2902                         return -EINVAL;
2903                 }
2904
2905                 /* Allocate memory for extended filtering Mode Global
2906                 Parameters */
2907                 ugeth->exf_glbl_param_offset =
2908                     qe_muram_alloc(sizeof(struct ucc_geth_exf_global_pram),
2909                 UCC_GETH_RX_EXTENDED_FILTERING_GLOBAL_PARAMETERS_ALIGNMENT);
2910                 if (IS_ERR_VALUE(ugeth->exf_glbl_param_offset)) {
2911                         if (netif_msg_ifup(ugeth))
2912                                 pr_err("Can not allocate DPRAM memory for p_exf_glbl_param\n");
2913                         return -ENOMEM;
2914                 }
2915
2916                 ugeth->p_exf_glbl_param =
2917                     (struct ucc_geth_exf_global_pram __iomem *) qe_muram_addr(ugeth->
2918                                  exf_glbl_param_offset);
2919                 out_be32(&ugeth->p_rx_glbl_pram->exfGlobalParam,
2920                          ugeth->exf_glbl_param_offset);
2921                 out_be32(&ugeth->p_exf_glbl_param->l2pcdptr,
2922                          (u32) ug_info->extendedFilteringChainPointer);
2923
2924         } else {                /* initialize 82xx style address filtering */
2925
2926                 /* Init individual address recognition registers to disabled */
2927
2928                 for (j = 0; j < NUM_OF_PADDRS; j++)
2929                         ugeth_82xx_filtering_clear_addr_in_paddr(ugeth, (u8) j);
2930
2931                 p_82xx_addr_filt =
2932                     (struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->
2933                     p_rx_glbl_pram->addressfiltering;
2934
2935                 ugeth_82xx_filtering_clear_all_addr_in_hash(ugeth,
2936                         ENET_ADDR_TYPE_GROUP);
2937                 ugeth_82xx_filtering_clear_all_addr_in_hash(ugeth,
2938                         ENET_ADDR_TYPE_INDIVIDUAL);
2939         }
2940
2941         /*
2942          * Initialize UCC at QE level
2943          */
2944
2945         command = QE_INIT_TX_RX;
2946
2947         /* Allocate shadow InitEnet command parameter structure.
2948          * This is needed because after the InitEnet command is executed,
2949          * the structure in DPRAM is released, because DPRAM is a premium
2950          * resource.
2951          * This shadow structure keeps a copy of what was done so that the
2952          * allocated resources can be released when the channel is freed.
2953          */
2954         if (!(ugeth->p_init_enet_param_shadow =
2955               kmalloc(sizeof(struct ucc_geth_init_pram), GFP_KERNEL))) {
2956                 if (netif_msg_ifup(ugeth))
2957                         pr_err("Can not allocate memory for p_UccInitEnetParamShadows\n");
2958                 return -ENOMEM;
2959         }
2960         /* Zero out *p_init_enet_param_shadow */
2961         memset((char *)ugeth->p_init_enet_param_shadow,
2962                0, sizeof(struct ucc_geth_init_pram));
2963
2964         /* Fill shadow InitEnet command parameter structure */
2965
2966         ugeth->p_init_enet_param_shadow->resinit1 =
2967             ENET_INIT_PARAM_MAGIC_RES_INIT1;
2968         ugeth->p_init_enet_param_shadow->resinit2 =
2969             ENET_INIT_PARAM_MAGIC_RES_INIT2;
2970         ugeth->p_init_enet_param_shadow->resinit3 =
2971             ENET_INIT_PARAM_MAGIC_RES_INIT3;
2972         ugeth->p_init_enet_param_shadow->resinit4 =
2973             ENET_INIT_PARAM_MAGIC_RES_INIT4;
2974         ugeth->p_init_enet_param_shadow->resinit5 =
2975             ENET_INIT_PARAM_MAGIC_RES_INIT5;
2976         ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
2977             ((u32) ug_info->numThreadsRx) << ENET_INIT_PARAM_RGF_SHIFT;
2978         ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
2979             ((u32) ug_info->numThreadsTx) << ENET_INIT_PARAM_TGF_SHIFT;
2980
2981         ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
2982             ugeth->rx_glbl_pram_offset | ug_info->riscRx;
2983         if ((ug_info->largestexternallookupkeysize !=
2984              QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_NONE) &&
2985             (ug_info->largestexternallookupkeysize !=
2986              QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_8_BYTES) &&
2987             (ug_info->largestexternallookupkeysize !=
2988              QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_16_BYTES)) {
2989                 if (netif_msg_ifup(ugeth))
2990                         pr_err("Invalid largest External Lookup Key Size\n");
2991                 return -EINVAL;
2992         }
2993         ugeth->p_init_enet_param_shadow->largestexternallookupkeysize =
2994             ug_info->largestexternallookupkeysize;
2995         size = sizeof(struct ucc_geth_thread_rx_pram);
2996         if (ug_info->rxExtendedFiltering) {
2997                 size += THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING;
2998                 if (ug_info->largestexternallookupkeysize ==
2999                     QE_FLTR_TABLE_LOOKUP_KEY_SIZE_8_BYTES)
3000                         size +=
3001                             THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_8;
3002                 if (ug_info->largestexternallookupkeysize ==
3003                     QE_FLTR_TABLE_LOOKUP_KEY_SIZE_16_BYTES)
3004                         size +=
3005                             THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_16;
3006         }
3007
3008         if ((ret_val = fill_init_enet_entries(ugeth, &(ugeth->
3009                 p_init_enet_param_shadow->rxthread[0]),
3010                 (u8) (numThreadsRxNumerical + 1)
3011                 /* Rx needs one extra for terminator */
3012                 , size, UCC_GETH_THREAD_RX_PRAM_ALIGNMENT,
3013                 ug_info->riscRx, 1)) != 0) {
3014                 if (netif_msg_ifup(ugeth))
3015                         pr_err("Can not fill p_init_enet_param_shadow\n");
3016                 return ret_val;
3017         }
3018
3019         ugeth->p_init_enet_param_shadow->txglobal =
3020             ugeth->tx_glbl_pram_offset | ug_info->riscTx;
3021         if ((ret_val =
3022              fill_init_enet_entries(ugeth,
3023                                     &(ugeth->p_init_enet_param_shadow->
3024                                       txthread[0]), numThreadsTxNumerical,
3025                                     sizeof(struct ucc_geth_thread_tx_pram),
3026                                     UCC_GETH_THREAD_TX_PRAM_ALIGNMENT,
3027                                     ug_info->riscTx, 0)) != 0) {
3028                 if (netif_msg_ifup(ugeth))
3029                         pr_err("Can not fill p_init_enet_param_shadow\n");
3030                 return ret_val;
3031         }
3032
3033         /* Load Rx bds with buffers */
3034         for (i = 0; i < ug_info->numQueuesRx; i++) {
3035                 if ((ret_val = rx_bd_buffer_set(ugeth, (u8) i)) != 0) {
3036                         if (netif_msg_ifup(ugeth))
3037                                 pr_err("Can not fill Rx bds with buffers\n");
3038                         return ret_val;
3039                 }
3040         }
3041
3042         /* Allocate InitEnet command parameter structure */
3043         init_enet_pram_offset = qe_muram_alloc(sizeof(struct ucc_geth_init_pram), 4);
3044         if (IS_ERR_VALUE(init_enet_pram_offset)) {
3045                 if (netif_msg_ifup(ugeth))
3046                         pr_err("Can not allocate DPRAM memory for p_init_enet_pram\n");
3047                 return -ENOMEM;
3048         }
3049         p_init_enet_pram =
3050             (struct ucc_geth_init_pram __iomem *) qe_muram_addr(init_enet_pram_offset);
3051
3052         /* Copy shadow InitEnet command parameter structure into PRAM */
3053         out_8(&p_init_enet_pram->resinit1,
3054                         ugeth->p_init_enet_param_shadow->resinit1);
3055         out_8(&p_init_enet_pram->resinit2,
3056                         ugeth->p_init_enet_param_shadow->resinit2);
3057         out_8(&p_init_enet_pram->resinit3,
3058                         ugeth->p_init_enet_param_shadow->resinit3);
3059         out_8(&p_init_enet_pram->resinit4,
3060                         ugeth->p_init_enet_param_shadow->resinit4);
3061         out_be16(&p_init_enet_pram->resinit5,
3062                  ugeth->p_init_enet_param_shadow->resinit5);
3063         out_8(&p_init_enet_pram->largestexternallookupkeysize,
3064             ugeth->p_init_enet_param_shadow->largestexternallookupkeysize);
3065         out_be32(&p_init_enet_pram->rgftgfrxglobal,
3066                  ugeth->p_init_enet_param_shadow->rgftgfrxglobal);
3067         for (i = 0; i < ENET_INIT_PARAM_MAX_ENTRIES_RX; i++)
3068                 out_be32(&p_init_enet_pram->rxthread[i],
3069                          ugeth->p_init_enet_param_shadow->rxthread[i]);
3070         out_be32(&p_init_enet_pram->txglobal,
3071                  ugeth->p_init_enet_param_shadow->txglobal);
3072         for (i = 0; i < ENET_INIT_PARAM_MAX_ENTRIES_TX; i++)
3073                 out_be32(&p_init_enet_pram->txthread[i],
3074                          ugeth->p_init_enet_param_shadow->txthread[i]);
3075
3076         /* Issue QE command */
3077         cecr_subblock =
3078             ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
3079         qe_issue_cmd(command, cecr_subblock, QE_CR_PROTOCOL_ETHERNET,
3080                      init_enet_pram_offset);
3081
3082         /* Free InitEnet command parameter */
3083         qe_muram_free(init_enet_pram_offset);
3084
3085         return 0;
3086 }
3087
3088 /* This is called by the kernel when a frame is ready for transmission. */
3089 /* It is pointed to by the dev->hard_start_xmit function pointer */
3090 static int ucc_geth_start_xmit(struct sk_buff *skb, struct net_device *dev)
3091 {
3092         struct ucc_geth_private *ugeth = netdev_priv(dev);
3093 #ifdef CONFIG_UGETH_TX_ON_DEMAND
3094         struct ucc_fast_private *uccf;
3095 #endif
3096         u8 __iomem *bd;                 /* BD pointer */
3097         u32 bd_status;
3098         u8 txQ = 0;
3099         unsigned long flags;
3100
3101         ugeth_vdbg("%s: IN", __func__);
3102
3103         spin_lock_irqsave(&ugeth->lock, flags);
3104
3105         dev->stats.tx_bytes += skb->len;
3106
3107         /* Start from the next BD that should be filled */
3108         bd = ugeth->txBd[txQ];
3109         bd_status = in_be32((u32 __iomem *)bd);
3110         /* Save the skb pointer so we can free it later */
3111         ugeth->tx_skbuff[txQ][ugeth->skb_curtx[txQ]] = skb;
3112
3113         /* Update the current skb pointer (wrapping if this was the last) */
3114         ugeth->skb_curtx[txQ] =
3115             (ugeth->skb_curtx[txQ] +
3116              1) & TX_RING_MOD_MASK(ugeth->ug_info->bdRingLenTx[txQ]);
3117
3118         /* set up the buffer descriptor */
3119         out_be32(&((struct qe_bd __iomem *)bd)->buf,
3120                       dma_map_single(ugeth->dev, skb->data,
3121                               skb->len, DMA_TO_DEVICE));
3122
3123         /* printk(KERN_DEBUG"skb->data is 0x%x\n",skb->data); */
3124
3125         bd_status = (bd_status & T_W) | T_R | T_I | T_L | skb->len;
3126
3127         /* set bd status and length */
3128         out_be32((u32 __iomem *)bd, bd_status);
3129
3130         /* Move to next BD in the ring */
3131         if (!(bd_status & T_W))
3132                 bd += sizeof(struct qe_bd);
3133         else
3134                 bd = ugeth->p_tx_bd_ring[txQ];
3135
3136         /* If the next BD still needs to be cleaned up, then the bds
3137            are full.  We need to tell the kernel to stop sending us stuff. */
3138         if (bd == ugeth->confBd[txQ]) {
3139                 if (!netif_queue_stopped(dev))
3140                         netif_stop_queue(dev);
3141         }
3142
3143         ugeth->txBd[txQ] = bd;
3144
3145         skb_tx_timestamp(skb);
3146
3147         if (ugeth->p_scheduler) {
3148                 ugeth->cpucount[txQ]++;
3149                 /* Indicate to QE that there are more Tx bds ready for
3150                 transmission */
3151                 /* This is done by writing a running counter of the bd
3152                 count to the scheduler PRAM. */
3153                 out_be16(ugeth->p_cpucount[txQ], ugeth->cpucount[txQ]);
3154         }
3155
3156 #ifdef CONFIG_UGETH_TX_ON_DEMAND
3157         uccf = ugeth->uccf;
3158         out_be16(uccf->p_utodr, UCC_FAST_TOD);
3159 #endif
3160         spin_unlock_irqrestore(&ugeth->lock, flags);
3161
3162         return NETDEV_TX_OK;
3163 }
3164
3165 static int ucc_geth_rx(struct ucc_geth_private *ugeth, u8 rxQ, int rx_work_limit)
3166 {
3167         struct sk_buff *skb;
3168         u8 __iomem *bd;
3169         u16 length, howmany = 0;
3170         u32 bd_status;
3171         u8 *bdBuffer;
3172         struct net_device *dev;
3173
3174         ugeth_vdbg("%s: IN", __func__);
3175
3176         dev = ugeth->ndev;
3177
3178         /* collect received buffers */
3179         bd = ugeth->rxBd[rxQ];
3180
3181         bd_status = in_be32((u32 __iomem *)bd);
3182
3183         /* while there are received buffers and BD is full (~R_E) */
3184         while (!((bd_status & (R_E)) || (--rx_work_limit < 0))) {
3185                 bdBuffer = (u8 *) in_be32(&((struct qe_bd __iomem *)bd)->buf);
3186                 length = (u16) ((bd_status & BD_LENGTH_MASK) - 4);
3187                 skb = ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]];
3188
3189                 /* determine whether buffer is first, last, first and last
3190                 (single buffer frame) or middle (not first and not last) */
3191                 if (!skb ||
3192                     (!(bd_status & (R_F | R_L))) ||
3193                     (bd_status & R_ERRORS_FATAL)) {
3194                         if (netif_msg_rx_err(ugeth))
3195                                 pr_err("%d: ERROR!!! skb - 0x%08x\n",
3196                                        __LINE__, (u32)skb);
3197                         dev_kfree_skb(skb);
3198
3199                         ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]] = NULL;
3200                         dev->stats.rx_dropped++;
3201                 } else {
3202                         dev->stats.rx_packets++;
3203                         howmany++;
3204
3205                         /* Prep the skb for the packet */
3206                         skb_put(skb, length);
3207
3208                         /* Tell the skb what kind of packet this is */
3209                         skb->protocol = eth_type_trans(skb, ugeth->ndev);
3210
3211                         dev->stats.rx_bytes += length;
3212                         /* Send the packet up the stack */
3213                         netif_receive_skb(skb);
3214                 }
3215
3216                 skb = get_new_skb(ugeth, bd);
3217                 if (!skb) {
3218                         if (netif_msg_rx_err(ugeth))
3219                                 pr_warn("No Rx Data Buffer\n");
3220                         dev->stats.rx_dropped++;
3221                         break;
3222                 }
3223
3224                 ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]] = skb;
3225
3226                 /* update to point at the next skb */
3227                 ugeth->skb_currx[rxQ] =
3228                     (ugeth->skb_currx[rxQ] +
3229                      1) & RX_RING_MOD_MASK(ugeth->ug_info->bdRingLenRx[rxQ]);
3230
3231                 if (bd_status & R_W)
3232                         bd = ugeth->p_rx_bd_ring[rxQ];
3233                 else
3234                         bd += sizeof(struct qe_bd);
3235
3236                 bd_status = in_be32((u32 __iomem *)bd);
3237         }
3238
3239         ugeth->rxBd[rxQ] = bd;
3240         return howmany;
3241 }
3242
3243 static int ucc_geth_tx(struct net_device *dev, u8 txQ)
3244 {
3245         /* Start from the next BD that should be filled */
3246         struct ucc_geth_private *ugeth = netdev_priv(dev);
3247         u8 __iomem *bd;         /* BD pointer */
3248         u32 bd_status;
3249
3250         bd = ugeth->confBd[txQ];
3251         bd_status = in_be32((u32 __iomem *)bd);
3252
3253         /* Normal processing. */
3254         while ((bd_status & T_R) == 0) {
3255                 struct sk_buff *skb;
3256
3257                 /* BD contains already transmitted buffer.   */
3258                 /* Handle the transmitted buffer and release */
3259                 /* the BD to be used with the current frame  */
3260
3261                 skb = ugeth->tx_skbuff[txQ][ugeth->skb_dirtytx[txQ]];
3262                 if (!skb)
3263                         break;
3264
3265                 dev->stats.tx_packets++;
3266
3267                 dev_kfree_skb(skb);
3268
3269                 ugeth->tx_skbuff[txQ][ugeth->skb_dirtytx[txQ]] = NULL;
3270                 ugeth->skb_dirtytx[txQ] =
3271                     (ugeth->skb_dirtytx[txQ] +
3272                      1) & TX_RING_MOD_MASK(ugeth->ug_info->bdRingLenTx[txQ]);
3273
3274                 /* We freed a buffer, so now we can restart transmission */
3275                 if (netif_queue_stopped(dev))
3276                         netif_wake_queue(dev);
3277
3278                 /* Advance the confirmation BD pointer */
3279                 if (!(bd_status & T_W))
3280                         bd += sizeof(struct qe_bd);
3281                 else
3282                         bd = ugeth->p_tx_bd_ring[txQ];
3283                 bd_status = in_be32((u32 __iomem *)bd);
3284         }
3285         ugeth->confBd[txQ] = bd;
3286         return 0;
3287 }
3288
3289 static int ucc_geth_poll(struct napi_struct *napi, int budget)
3290 {
3291         struct ucc_geth_private *ugeth = container_of(napi, struct ucc_geth_private, napi);
3292         struct ucc_geth_info *ug_info;
3293         int howmany, i;
3294
3295         ug_info = ugeth->ug_info;
3296
3297         /* Tx event processing */
3298         spin_lock(&ugeth->lock);
3299         for (i = 0; i < ug_info->numQueuesTx; i++)
3300                 ucc_geth_tx(ugeth->ndev, i);
3301         spin_unlock(&ugeth->lock);
3302
3303         howmany = 0;
3304         for (i = 0; i < ug_info->numQueuesRx; i++)
3305                 howmany += ucc_geth_rx(ugeth, i, budget - howmany);
3306
3307         if (howmany < budget) {
3308                 napi_complete(napi);
3309                 setbits32(ugeth->uccf->p_uccm, UCCE_RX_EVENTS | UCCE_TX_EVENTS);
3310         }
3311
3312         return howmany;
3313 }
3314
3315 static irqreturn_t ucc_geth_irq_handler(int irq, void *info)
3316 {
3317         struct net_device *dev = info;
3318         struct ucc_geth_private *ugeth = netdev_priv(dev);
3319         struct ucc_fast_private *uccf;
3320         struct ucc_geth_info *ug_info;
3321         register u32 ucce;
3322         register u32 uccm;
3323
3324         ugeth_vdbg("%s: IN", __func__);
3325
3326         uccf = ugeth->uccf;
3327         ug_info = ugeth->ug_info;
3328
3329         /* read and clear events */
3330         ucce = (u32) in_be32(uccf->p_ucce);
3331         uccm = (u32) in_be32(uccf->p_uccm);
3332         ucce &= uccm;
3333         out_be32(uccf->p_ucce, ucce);
3334
3335         /* check for receive events that require processing */
3336         if (ucce & (UCCE_RX_EVENTS | UCCE_TX_EVENTS)) {
3337                 if (napi_schedule_prep(&ugeth->napi)) {
3338                         uccm &= ~(UCCE_RX_EVENTS | UCCE_TX_EVENTS);
3339                         out_be32(uccf->p_uccm, uccm);
3340                         __napi_schedule(&ugeth->napi);
3341                 }
3342         }
3343
3344         /* Errors and other events */
3345         if (ucce & UCCE_OTHER) {
3346                 if (ucce & UCC_GETH_UCCE_BSY)
3347                         dev->stats.rx_errors++;
3348                 if (ucce & UCC_GETH_UCCE_TXE)
3349                         dev->stats.tx_errors++;
3350         }
3351
3352         return IRQ_HANDLED;
3353 }
3354
3355 #ifdef CONFIG_NET_POLL_CONTROLLER
3356 /*
3357  * Polling 'interrupt' - used by things like netconsole to send skbs
3358  * without having to re-enable interrupts. It's not called while
3359  * the interrupt routine is executing.
3360  */
3361 static void ucc_netpoll(struct net_device *dev)
3362 {
3363         struct ucc_geth_private *ugeth = netdev_priv(dev);
3364         int irq = ugeth->ug_info->uf_info.irq;
3365
3366         disable_irq(irq);
3367         ucc_geth_irq_handler(irq, dev);
3368         enable_irq(irq);
3369 }
3370 #endif /* CONFIG_NET_POLL_CONTROLLER */
3371
3372 static int ucc_geth_set_mac_addr(struct net_device *dev, void *p)
3373 {
3374         struct ucc_geth_private *ugeth = netdev_priv(dev);
3375         struct sockaddr *addr = p;
3376
3377         if (!is_valid_ether_addr(addr->sa_data))
3378                 return -EADDRNOTAVAIL;
3379
3380         memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
3381
3382         /*
3383          * If device is not running, we will set mac addr register
3384          * when opening the device.
3385          */
3386         if (!netif_running(dev))
3387                 return 0;
3388
3389         spin_lock_irq(&ugeth->lock);
3390         init_mac_station_addr_regs(dev->dev_addr[0],
3391                                    dev->dev_addr[1],
3392                                    dev->dev_addr[2],
3393                                    dev->dev_addr[3],
3394                                    dev->dev_addr[4],
3395                                    dev->dev_addr[5],
3396                                    &ugeth->ug_regs->macstnaddr1,
3397                                    &ugeth->ug_regs->macstnaddr2);
3398         spin_unlock_irq(&ugeth->lock);
3399
3400         return 0;
3401 }
3402
3403 static int ucc_geth_init_mac(struct ucc_geth_private *ugeth)
3404 {
3405         struct net_device *dev = ugeth->ndev;
3406         int err;
3407
3408         err = ucc_struct_init(ugeth);
3409         if (err) {
3410                 netif_err(ugeth, ifup, dev, "Cannot configure internal struct, aborting\n");
3411                 goto err;
3412         }
3413
3414         err = ucc_geth_startup(ugeth);
3415         if (err) {
3416                 netif_err(ugeth, ifup, dev, "Cannot configure net device, aborting\n");
3417                 goto err;
3418         }
3419
3420         err = adjust_enet_interface(ugeth);
3421         if (err) {
3422                 netif_err(ugeth, ifup, dev, "Cannot configure net device, aborting\n");
3423                 goto err;
3424         }
3425
3426         /*       Set MACSTNADDR1, MACSTNADDR2                */
3427         /* For more details see the hardware spec.           */
3428         init_mac_station_addr_regs(dev->dev_addr[0],
3429                                    dev->dev_addr[1],
3430                                    dev->dev_addr[2],
3431                                    dev->dev_addr[3],
3432                                    dev->dev_addr[4],
3433                                    dev->dev_addr[5],
3434                                    &ugeth->ug_regs->macstnaddr1,
3435                                    &ugeth->ug_regs->macstnaddr2);
3436
3437         err = ugeth_enable(ugeth, COMM_DIR_RX_AND_TX);
3438         if (err) {
3439                 netif_err(ugeth, ifup, dev, "Cannot enable net device, aborting\n");
3440                 goto err;
3441         }
3442
3443         return 0;
3444 err:
3445         ucc_geth_stop(ugeth);
3446         return err;
3447 }
3448
3449 /* Called when something needs to use the ethernet device */
3450 /* Returns 0 for success. */
3451 static int ucc_geth_open(struct net_device *dev)
3452 {
3453         struct ucc_geth_private *ugeth = netdev_priv(dev);
3454         int err;
3455
3456         ugeth_vdbg("%s: IN", __func__);
3457
3458         /* Test station address */
3459         if (dev->dev_addr[0] & ENET_GROUP_ADDR) {
3460                 netif_err(ugeth, ifup, dev,
3461                           "Multicast address used for station address - is this what you wanted?\n");
3462                 return -EINVAL;
3463         }
3464
3465         err = init_phy(dev);
3466         if (err) {
3467                 netif_err(ugeth, ifup, dev, "Cannot initialize PHY, aborting\n");
3468                 return err;
3469         }
3470
3471         err = ucc_geth_init_mac(ugeth);
3472         if (err) {
3473                 netif_err(ugeth, ifup, dev, "Cannot initialize MAC, aborting\n");
3474                 goto err;
3475         }
3476
3477         err = request_irq(ugeth->ug_info->uf_info.irq, ucc_geth_irq_handler,
3478                           0, "UCC Geth", dev);
3479         if (err) {
3480                 netif_err(ugeth, ifup, dev, "Cannot get IRQ for net device, aborting\n");
3481                 goto err;
3482         }
3483
3484         phy_start(ugeth->phydev);
3485         napi_enable(&ugeth->napi);
3486         netif_start_queue(dev);
3487
3488         device_set_wakeup_capable(&dev->dev,
3489                         qe_alive_during_sleep() || ugeth->phydev->irq);
3490         device_set_wakeup_enable(&dev->dev, ugeth->wol_en);
3491
3492         return err;
3493
3494 err:
3495         ucc_geth_stop(ugeth);
3496         return err;
3497 }
3498
3499 /* Stops the kernel queue, and halts the controller */
3500 static int ucc_geth_close(struct net_device *dev)
3501 {
3502         struct ucc_geth_private *ugeth = netdev_priv(dev);
3503
3504         ugeth_vdbg("%s: IN", __func__);
3505
3506         napi_disable(&ugeth->napi);
3507
3508         cancel_work_sync(&ugeth->timeout_work);
3509         ucc_geth_stop(ugeth);
3510         phy_disconnect(ugeth->phydev);
3511         ugeth->phydev = NULL;
3512
3513         free_irq(ugeth->ug_info->uf_info.irq, ugeth->ndev);
3514
3515         netif_stop_queue(dev);
3516
3517         return 0;
3518 }
3519
3520 /* Reopen device. This will reset the MAC and PHY. */
3521 static void ucc_geth_timeout_work(struct work_struct *work)
3522 {
3523         struct ucc_geth_private *ugeth;
3524         struct net_device *dev;
3525
3526         ugeth = container_of(work, struct ucc_geth_private, timeout_work);
3527         dev = ugeth->ndev;
3528
3529         ugeth_vdbg("%s: IN", __func__);
3530
3531         dev->stats.tx_errors++;
3532
3533         ugeth_dump_regs(ugeth);
3534
3535         if (dev->flags & IFF_UP) {
3536                 /*
3537                  * Must reset MAC *and* PHY. This is done by reopening
3538                  * the device.
3539                  */
3540                 netif_tx_stop_all_queues(dev);
3541                 ucc_geth_stop(ugeth);
3542                 ucc_geth_init_mac(ugeth);
3543                 /* Must start PHY here */
3544                 phy_start(ugeth->phydev);
3545                 netif_tx_start_all_queues(dev);
3546         }
3547
3548         netif_tx_schedule_all(dev);
3549 }
3550
3551 /*
3552  * ucc_geth_timeout gets called when a packet has not been
3553  * transmitted after a set amount of time.
3554  */
3555 static void ucc_geth_timeout(struct net_device *dev)
3556 {
3557         struct ucc_geth_private *ugeth = netdev_priv(dev);
3558
3559         schedule_work(&ugeth->timeout_work);
3560 }
3561
3562
3563 #ifdef CONFIG_PM
3564
3565 static int ucc_geth_suspend(struct platform_device *ofdev, pm_message_t state)
3566 {
3567         struct net_device *ndev = platform_get_drvdata(ofdev);
3568         struct ucc_geth_private *ugeth = netdev_priv(ndev);
3569
3570         if (!netif_running(ndev))
3571                 return 0;
3572
3573         netif_device_detach(ndev);
3574         napi_disable(&ugeth->napi);
3575
3576         /*
3577          * Disable the controller, otherwise we'll wakeup on any network
3578          * activity.
3579          */
3580         ugeth_disable(ugeth, COMM_DIR_RX_AND_TX);
3581
3582         if (ugeth->wol_en & WAKE_MAGIC) {
3583                 setbits32(ugeth->uccf->p_uccm, UCC_GETH_UCCE_MPD);
3584                 setbits32(&ugeth->ug_regs->maccfg2, MACCFG2_MPE);
3585                 ucc_fast_enable(ugeth->uccf, COMM_DIR_RX_AND_TX);
3586         } else if (!(ugeth->wol_en & WAKE_PHY)) {
3587                 phy_stop(ugeth->phydev);
3588         }
3589
3590         return 0;
3591 }
3592
3593 static int ucc_geth_resume(struct platform_device *ofdev)
3594 {
3595         struct net_device *ndev = platform_get_drvdata(ofdev);
3596         struct ucc_geth_private *ugeth = netdev_priv(ndev);
3597         int err;
3598
3599         if (!netif_running(ndev))
3600                 return 0;
3601
3602         if (qe_alive_during_sleep()) {
3603                 if (ugeth->wol_en & WAKE_MAGIC) {
3604                         ucc_fast_disable(ugeth->uccf, COMM_DIR_RX_AND_TX);
3605                         clrbits32(&ugeth->ug_regs->maccfg2, MACCFG2_MPE);
3606                         clrbits32(ugeth->uccf->p_uccm, UCC_GETH_UCCE_MPD);
3607                 }
3608                 ugeth_enable(ugeth, COMM_DIR_RX_AND_TX);
3609         } else {
3610                 /*
3611                  * Full reinitialization is required if QE shuts down
3612                  * during sleep.
3613                  */
3614                 ucc_geth_memclean(ugeth);
3615
3616                 err = ucc_geth_init_mac(ugeth);
3617                 if (err) {
3618                         netdev_err(ndev, "Cannot initialize MAC, aborting\n");
3619                         return err;
3620                 }
3621         }
3622
3623         ugeth->oldlink = 0;
3624         ugeth->oldspeed = 0;
3625         ugeth->oldduplex = -1;
3626
3627         phy_stop(ugeth->phydev);
3628         phy_start(ugeth->phydev);
3629
3630         napi_enable(&ugeth->napi);
3631         netif_device_attach(ndev);
3632
3633         return 0;
3634 }
3635
3636 #else
3637 #define ucc_geth_suspend NULL
3638 #define ucc_geth_resume NULL
3639 #endif
3640
3641 static phy_interface_t to_phy_interface(const char *phy_connection_type)
3642 {
3643         if (strcasecmp(phy_connection_type, "mii") == 0)
3644                 return PHY_INTERFACE_MODE_MII;
3645         if (strcasecmp(phy_connection_type, "gmii") == 0)
3646                 return PHY_INTERFACE_MODE_GMII;
3647         if (strcasecmp(phy_connection_type, "tbi") == 0)
3648                 return PHY_INTERFACE_MODE_TBI;
3649         if (strcasecmp(phy_connection_type, "rmii") == 0)
3650                 return PHY_INTERFACE_MODE_RMII;
3651         if (strcasecmp(phy_connection_type, "rgmii") == 0)
3652                 return PHY_INTERFACE_MODE_RGMII;
3653         if (strcasecmp(phy_connection_type, "rgmii-id") == 0)
3654                 return PHY_INTERFACE_MODE_RGMII_ID;
3655         if (strcasecmp(phy_connection_type, "rgmii-txid") == 0)
3656                 return PHY_INTERFACE_MODE_RGMII_TXID;
3657         if (strcasecmp(phy_connection_type, "rgmii-rxid") == 0)
3658                 return PHY_INTERFACE_MODE_RGMII_RXID;
3659         if (strcasecmp(phy_connection_type, "rtbi") == 0)
3660                 return PHY_INTERFACE_MODE_RTBI;
3661         if (strcasecmp(phy_connection_type, "sgmii") == 0)
3662                 return PHY_INTERFACE_MODE_SGMII;
3663
3664         return PHY_INTERFACE_MODE_MII;
3665 }
3666
3667 static int ucc_geth_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
3668 {
3669         struct ucc_geth_private *ugeth = netdev_priv(dev);
3670
3671         if (!netif_running(dev))
3672                 return -EINVAL;
3673
3674         if (!ugeth->phydev)
3675                 return -ENODEV;
3676
3677         return phy_mii_ioctl(ugeth->phydev, rq, cmd);
3678 }
3679
3680 static const struct net_device_ops ucc_geth_netdev_ops = {
3681         .ndo_open               = ucc_geth_open,
3682         .ndo_stop               = ucc_geth_close,
3683         .ndo_start_xmit         = ucc_geth_start_xmit,
3684         .ndo_validate_addr      = eth_validate_addr,
3685         .ndo_set_mac_address    = ucc_geth_set_mac_addr,
3686         .ndo_change_mtu         = eth_change_mtu,
3687         .ndo_set_rx_mode        = ucc_geth_set_multi,
3688         .ndo_tx_timeout         = ucc_geth_timeout,
3689         .ndo_do_ioctl           = ucc_geth_ioctl,
3690 #ifdef CONFIG_NET_POLL_CONTROLLER
3691         .ndo_poll_controller    = ucc_netpoll,
3692 #endif
3693 };
3694
3695 static int ucc_geth_probe(struct platform_device* ofdev)
3696 {
3697         struct device *device = &ofdev->dev;
3698         struct device_node *np = ofdev->dev.of_node;
3699         struct net_device *dev = NULL;
3700         struct ucc_geth_private *ugeth = NULL;
3701         struct ucc_geth_info *ug_info;
3702         struct resource res;
3703         int err, ucc_num, max_speed = 0;
3704         const unsigned int *prop;
3705         const char *sprop;
3706         const void *mac_addr;
3707         phy_interface_t phy_interface;
3708         static const int enet_to_speed[] = {
3709                 SPEED_10, SPEED_10, SPEED_10,
3710                 SPEED_100, SPEED_100, SPEED_100,
3711                 SPEED_1000, SPEED_1000, SPEED_1000, SPEED_1000,
3712         };
3713         static const phy_interface_t enet_to_phy_interface[] = {
3714                 PHY_INTERFACE_MODE_MII, PHY_INTERFACE_MODE_RMII,
3715                 PHY_INTERFACE_MODE_RGMII, PHY_INTERFACE_MODE_MII,
3716                 PHY_INTERFACE_MODE_RMII, PHY_INTERFACE_MODE_RGMII,
3717                 PHY_INTERFACE_MODE_GMII, PHY_INTERFACE_MODE_RGMII,
3718                 PHY_INTERFACE_MODE_TBI, PHY_INTERFACE_MODE_RTBI,
3719                 PHY_INTERFACE_MODE_SGMII,
3720         };
3721
3722         ugeth_vdbg("%s: IN", __func__);
3723
3724         prop = of_get_property(np, "cell-index", NULL);
3725         if (!prop) {
3726                 prop = of_get_property(np, "device-id", NULL);
3727                 if (!prop)
3728                         return -ENODEV;
3729         }
3730
3731         ucc_num = *prop - 1;
3732         if ((ucc_num < 0) || (ucc_num > 7))
3733                 return -ENODEV;
3734
3735         ug_info = &ugeth_info[ucc_num];
3736         if (ug_info == NULL) {
3737                 if (netif_msg_probe(&debug))
3738                         pr_err("[%d] Missing additional data!\n", ucc_num);
3739                 return -ENODEV;
3740         }
3741
3742         ug_info->uf_info.ucc_num = ucc_num;
3743
3744         sprop = of_get_property(np, "rx-clock-name", NULL);
3745         if (sprop) {
3746                 ug_info->uf_info.rx_clock = qe_clock_source(sprop);
3747                 if ((ug_info->uf_info.rx_clock < QE_CLK_NONE) ||
3748                     (ug_info->uf_info.rx_clock > QE_CLK24)) {
3749                         pr_err("invalid rx-clock-name property\n");
3750                         return -EINVAL;
3751                 }
3752         } else {
3753                 prop = of_get_property(np, "rx-clock", NULL);
3754                 if (!prop) {
3755                         /* If both rx-clock-name and rx-clock are missing,
3756                            we want to tell people to use rx-clock-name. */
3757                         pr_err("missing rx-clock-name property\n");
3758                         return -EINVAL;
3759                 }
3760                 if ((*prop < QE_CLK_NONE) || (*prop > QE_CLK24)) {
3761                         pr_err("invalid rx-clock propperty\n");
3762                         return -EINVAL;
3763                 }
3764                 ug_info->uf_info.rx_clock = *prop;
3765         }
3766
3767         sprop = of_get_property(np, "tx-clock-name", NULL);
3768         if (sprop) {
3769                 ug_info->uf_info.tx_clock = qe_clock_source(sprop);
3770                 if ((ug_info->uf_info.tx_clock < QE_CLK_NONE) ||
3771                     (ug_info->uf_info.tx_clock > QE_CLK24)) {
3772                         pr_err("invalid tx-clock-name property\n");
3773                         return -EINVAL;
3774                 }
3775         } else {
3776                 prop = of_get_property(np, "tx-clock", NULL);
3777                 if (!prop) {
3778                         pr_err("missing tx-clock-name property\n");
3779                         return -EINVAL;
3780                 }
3781                 if ((*prop < QE_CLK_NONE) || (*prop > QE_CLK24)) {
3782                         pr_err("invalid tx-clock property\n");
3783                         return -EINVAL;
3784                 }
3785                 ug_info->uf_info.tx_clock = *prop;
3786         }
3787
3788         err = of_address_to_resource(np, 0, &res);
3789         if (err)
3790                 return -EINVAL;
3791
3792         ug_info->uf_info.regs = res.start;
3793         ug_info->uf_info.irq = irq_of_parse_and_map(np, 0);
3794
3795         ug_info->phy_node = of_parse_phandle(np, "phy-handle", 0);
3796
3797         /* Find the TBI PHY node.  If it's not there, we don't support SGMII */
3798         ug_info->tbi_node = of_parse_phandle(np, "tbi-handle", 0);
3799
3800         /* get the phy interface type, or default to MII */
3801         prop = of_get_property(np, "phy-connection-type", NULL);
3802         if (!prop) {
3803                 /* handle interface property present in old trees */
3804                 prop = of_get_property(ug_info->phy_node, "interface", NULL);
3805                 if (prop != NULL) {
3806                         phy_interface = enet_to_phy_interface[*prop];
3807                         max_speed = enet_to_speed[*prop];
3808                 } else
3809                         phy_interface = PHY_INTERFACE_MODE_MII;
3810         } else {
3811                 phy_interface = to_phy_interface((const char *)prop);
3812         }
3813
3814         /* get speed, or derive from PHY interface */
3815         if (max_speed == 0)
3816                 switch (phy_interface) {
3817                 case PHY_INTERFACE_MODE_GMII:
3818                 case PHY_INTERFACE_MODE_RGMII:
3819                 case PHY_INTERFACE_MODE_RGMII_ID:
3820                 case PHY_INTERFACE_MODE_RGMII_RXID:
3821                 case PHY_INTERFACE_MODE_RGMII_TXID:
3822                 case PHY_INTERFACE_MODE_TBI:
3823                 case PHY_INTERFACE_MODE_RTBI:
3824                 case PHY_INTERFACE_MODE_SGMII:
3825                         max_speed = SPEED_1000;
3826                         break;
3827                 default:
3828                         max_speed = SPEED_100;
3829                         break;
3830                 }
3831
3832         if (max_speed == SPEED_1000) {
3833                 unsigned int snums = qe_get_num_of_snums();
3834
3835                 /* configure muram FIFOs for gigabit operation */
3836                 ug_info->uf_info.urfs = UCC_GETH_URFS_GIGA_INIT;
3837                 ug_info->uf_info.urfet = UCC_GETH_URFET_GIGA_INIT;
3838                 ug_info->uf_info.urfset = UCC_GETH_URFSET_GIGA_INIT;
3839                 ug_info->uf_info.utfs = UCC_GETH_UTFS_GIGA_INIT;
3840                 ug_info->uf_info.utfet = UCC_GETH_UTFET_GIGA_INIT;
3841                 ug_info->uf_info.utftt = UCC_GETH_UTFTT_GIGA_INIT;
3842                 ug_info->numThreadsTx = UCC_GETH_NUM_OF_THREADS_4;
3843
3844                 /* If QE's snum number is 46/76 which means we need to support
3845                  * 4 UECs at 1000Base-T simultaneously, we need to allocate
3846                  * more Threads to Rx.
3847                  */
3848                 if ((snums == 76) || (snums == 46))
3849                         ug_info->numThreadsRx = UCC_GETH_NUM_OF_THREADS_6;
3850                 else
3851                         ug_info->numThreadsRx = UCC_GETH_NUM_OF_THREADS_4;
3852         }
3853
3854         if (netif_msg_probe(&debug))
3855                 pr_info("UCC%1d at 0x%8x (irq = %d)\n",
3856                         ug_info->uf_info.ucc_num + 1, ug_info->uf_info.regs,
3857                         ug_info->uf_info.irq);
3858
3859         /* Create an ethernet device instance */
3860         dev = alloc_etherdev(sizeof(*ugeth));
3861
3862         if (dev == NULL)
3863                 return -ENOMEM;
3864
3865         ugeth = netdev_priv(dev);
3866         spin_lock_init(&ugeth->lock);
3867
3868         /* Create CQs for hash tables */
3869         INIT_LIST_HEAD(&ugeth->group_hash_q);
3870         INIT_LIST_HEAD(&ugeth->ind_hash_q);
3871
3872         dev_set_drvdata(device, dev);
3873
3874         /* Set the dev->base_addr to the gfar reg region */
3875         dev->base_addr = (unsigned long)(ug_info->uf_info.regs);
3876
3877         SET_NETDEV_DEV(dev, device);
3878
3879         /* Fill in the dev structure */
3880         uec_set_ethtool_ops(dev);
3881         dev->netdev_ops = &ucc_geth_netdev_ops;
3882         dev->watchdog_timeo = TX_TIMEOUT;
3883         INIT_WORK(&ugeth->timeout_work, ucc_geth_timeout_work);
3884         netif_napi_add(dev, &ugeth->napi, ucc_geth_poll, 64);
3885         dev->mtu = 1500;
3886
3887         ugeth->msg_enable = netif_msg_init(debug.msg_enable, UGETH_MSG_DEFAULT);
3888         ugeth->phy_interface = phy_interface;
3889         ugeth->max_speed = max_speed;
3890
3891         err = register_netdev(dev);
3892         if (err) {
3893                 if (netif_msg_probe(ugeth))
3894                         pr_err("%s: Cannot register net device, aborting\n",
3895                                dev->name);
3896                 free_netdev(dev);
3897                 return err;
3898         }
3899
3900         mac_addr = of_get_mac_address(np);
3901         if (mac_addr)
3902                 memcpy(dev->dev_addr, mac_addr, 6);
3903
3904         ugeth->ug_info = ug_info;
3905         ugeth->dev = device;
3906         ugeth->ndev = dev;
3907         ugeth->node = np;
3908
3909         return 0;
3910 }
3911
3912 static int ucc_geth_remove(struct platform_device* ofdev)
3913 {
3914         struct net_device *dev = platform_get_drvdata(ofdev);
3915         struct ucc_geth_private *ugeth = netdev_priv(dev);
3916
3917         unregister_netdev(dev);
3918         free_netdev(dev);
3919         ucc_geth_memclean(ugeth);
3920
3921         return 0;
3922 }
3923
3924 static struct of_device_id ucc_geth_match[] = {
3925         {
3926                 .type = "network",
3927                 .compatible = "ucc_geth",
3928         },
3929         {},
3930 };
3931
3932 MODULE_DEVICE_TABLE(of, ucc_geth_match);
3933
3934 static struct platform_driver ucc_geth_driver = {
3935         .driver = {
3936                 .name = DRV_NAME,
3937                 .owner = THIS_MODULE,
3938                 .of_match_table = ucc_geth_match,
3939         },
3940         .probe          = ucc_geth_probe,
3941         .remove         = ucc_geth_remove,
3942         .suspend        = ucc_geth_suspend,
3943         .resume         = ucc_geth_resume,
3944 };
3945
3946 static int __init ucc_geth_init(void)
3947 {
3948         int i, ret;
3949
3950         if (netif_msg_drv(&debug))
3951                 pr_info(DRV_DESC "\n");
3952         for (i = 0; i < 8; i++)
3953                 memcpy(&(ugeth_info[i]), &ugeth_primary_info,
3954                        sizeof(ugeth_primary_info));
3955
3956         ret = platform_driver_register(&ucc_geth_driver);
3957
3958         return ret;
3959 }
3960
3961 static void __exit ucc_geth_exit(void)
3962 {
3963         platform_driver_unregister(&ucc_geth_driver);
3964 }
3965
3966 module_init(ucc_geth_init);
3967 module_exit(ucc_geth_exit);
3968
3969 MODULE_AUTHOR("Freescale Semiconductor, Inc");
3970 MODULE_DESCRIPTION(DRV_DESC);
3971 MODULE_VERSION(DRV_VERSION);
3972 MODULE_LICENSE("GPL");