drivers/net/qlcnic/qlcnic_init.c

   1 /*
   2  * Copyright (C) 2009 - QLogic Corporation.
   3  * All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License
   7  * as published by the Free Software Foundation; either version 2
   8  * of the License, or (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  18  * MA  02111-1307, USA.
  19  *
  20  * The full GNU General Public License is included in this distribution
  21  * in the file called "COPYING".
  22  *
  23  */
  24
  25 #include <linux/netdevice.h>
  26 #include <linux/delay.h>
  27 #include <linux/slab.h>
  28 #include <linux/if_vlan.h>
  29 #include "qlcnic.h"
  30
  31 struct crb_addr_pair {
  32         u32 addr;
  33         u32 data;
  34 };
  35
  36 #define QLCNIC_MAX_CRB_XFORM 60
  37 static unsigned int crb_addr_xform[QLCNIC_MAX_CRB_XFORM];
  38
  39 #define crb_addr_transform(name) \
  40         (crb_addr_xform[QLCNIC_HW_PX_MAP_CRB_##name] = \
  41         QLCNIC_HW_CRB_HUB_AGT_ADR_##name << 20)
  42
  43 #define QLCNIC_ADDR_ERROR (0xffffffff)
  44
  45 static void
  46 qlcnic_post_rx_buffers_nodb(struct qlcnic_adapter *adapter,
  47                 struct qlcnic_host_rds_ring *rds_ring);
  48
  49 static int
  50 qlcnic_check_fw_hearbeat(struct qlcnic_adapter *adapter);
  51
  52 static void crb_addr_transform_setup(void)
  53 {
  54         crb_addr_transform(XDMA);
  55         crb_addr_transform(TIMR);
  56         crb_addr_transform(SRE);
  57         crb_addr_transform(SQN3);
  58         crb_addr_transform(SQN2);
  59         crb_addr_transform(SQN1);
  60         crb_addr_transform(SQN0);
  61         crb_addr_transform(SQS3);
  62         crb_addr_transform(SQS2);
  63         crb_addr_transform(SQS1);
  64         crb_addr_transform(SQS0);
  65         crb_addr_transform(RPMX7);
  66         crb_addr_transform(RPMX6);
  67         crb_addr_transform(RPMX5);
  68         crb_addr_transform(RPMX4);
  69         crb_addr_transform(RPMX3);
  70         crb_addr_transform(RPMX2);
  71         crb_addr_transform(RPMX1);
  72         crb_addr_transform(RPMX0);
  73         crb_addr_transform(ROMUSB);
  74         crb_addr_transform(SN);
  75         crb_addr_transform(QMN);
  76         crb_addr_transform(QMS);
  77         crb_addr_transform(PGNI);
  78         crb_addr_transform(PGND);
  79         crb_addr_transform(PGN3);
  80         crb_addr_transform(PGN2);
  81         crb_addr_transform(PGN1);
  82         crb_addr_transform(PGN0);
  83         crb_addr_transform(PGSI);
  84         crb_addr_transform(PGSD);
  85         crb_addr_transform(PGS3);
  86         crb_addr_transform(PGS2);
  87         crb_addr_transform(PGS1);
  88         crb_addr_transform(PGS0);
  89         crb_addr_transform(PS);
  90         crb_addr_transform(PH);
  91         crb_addr_transform(NIU);
  92         crb_addr_transform(I2Q);
  93         crb_addr_transform(EG);
  94         crb_addr_transform(MN);
  95         crb_addr_transform(MS);
  96         crb_addr_transform(CAS2);
  97         crb_addr_transform(CAS1);
  98         crb_addr_transform(CAS0);
  99         crb_addr_transform(CAM);
 100         crb_addr_transform(C2C1);
 101         crb_addr_transform(C2C0);
 102         crb_addr_transform(SMB);
 103         crb_addr_transform(OCM0);
 104         crb_addr_transform(I2C0);
 105 }
 106
 107 void qlcnic_release_rx_buffers(struct qlcnic_adapter *adapter)
 108 {
 109         struct qlcnic_recv_context *recv_ctx;
 110         struct qlcnic_host_rds_ring *rds_ring;
 111         struct qlcnic_rx_buffer *rx_buf;
 112         int i, ring;
 113
 114         recv_ctx = &adapter->recv_ctx;
 115         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
 116                 rds_ring = &recv_ctx->rds_rings[ring];
 117                 for (i = 0; i < rds_ring->num_desc; ++i) {
 118                         rx_buf = &(rds_ring->rx_buf_arr[i]);
 119                         if (rx_buf->skb == NULL)
 120                                 continue;
 121
 122                         pci_unmap_single(adapter->pdev,
 123                                         rx_buf->dma,
 124                                         rds_ring->dma_size,
 125                                         PCI_DMA_FROMDEVICE);
 126
 127                         dev_kfree_skb_any(rx_buf->skb);
 128                 }
 129         }
 130 }
 131
 132 void qlcnic_reset_rx_buffers_list(struct qlcnic_adapter *adapter)
 133 {
 134         struct qlcnic_recv_context *recv_ctx;
 135         struct qlcnic_host_rds_ring *rds_ring;
 136         struct qlcnic_rx_buffer *rx_buf;
 137         int i, ring;
 138
 139         recv_ctx = &adapter->recv_ctx;
 140         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
 141                 rds_ring = &recv_ctx->rds_rings[ring];
 142
 143                 INIT_LIST_HEAD(&rds_ring->free_list);
 144
 145                 rx_buf = rds_ring->rx_buf_arr;
 146                 for (i = 0; i < rds_ring->num_desc; i++) {
 147                         list_add_tail(&rx_buf->list,
 148                                         &rds_ring->free_list);
 149                         rx_buf++;
 150                 }
 151         }
 152 }
 153
 154 void qlcnic_release_tx_buffers(struct qlcnic_adapter *adapter)
 155 {
 156         struct qlcnic_cmd_buffer *cmd_buf;
 157         struct qlcnic_skb_frag *buffrag;
 158         int i, j;
 159         struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
 160
 161         cmd_buf = tx_ring->cmd_buf_arr;
 162         for (i = 0; i < tx_ring->num_desc; i++) {
 163                 buffrag = cmd_buf->frag_array;
 164                 if (buffrag->dma) {
 165                         pci_unmap_single(adapter->pdev, buffrag->dma,
 166                                          buffrag->length, PCI_DMA_TODEVICE);
 167                         buffrag->dma = 0ULL;
 168                 }
 169                 for (j = 0; j < cmd_buf->frag_count; j++) {
 170                         buffrag++;
 171                         if (buffrag->dma) {
 172                                 pci_unmap_page(adapter->pdev, buffrag->dma,
 173                                                buffrag->length,
 174                                                PCI_DMA_TODEVICE);
 175                                 buffrag->dma = 0ULL;
 176                         }
 177                 }
 178                 if (cmd_buf->skb) {
 179                         dev_kfree_skb_any(cmd_buf->skb);
 180                         cmd_buf->skb = NULL;
 181                 }
 182                 cmd_buf++;
 183         }
 184 }
 185
 186 void qlcnic_free_sw_resources(struct qlcnic_adapter *adapter)
 187 {
 188         struct qlcnic_recv_context *recv_ctx;
 189         struct qlcnic_host_rds_ring *rds_ring;
 190         struct qlcnic_host_tx_ring *tx_ring;
 191         int ring;
 192
 193         recv_ctx = &adapter->recv_ctx;
 194
 195         if (recv_ctx->rds_rings == NULL)
 196                 goto skip_rds;
 197
 198         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
 199                 rds_ring = &recv_ctx->rds_rings[ring];
 200                 vfree(rds_ring->rx_buf_arr);
 201                 rds_ring->rx_buf_arr = NULL;
 202         }
 203         kfree(recv_ctx->rds_rings);
 204
 205 skip_rds:
 206         if (adapter->tx_ring == NULL)
 207                 return;
 208
 209         tx_ring = adapter->tx_ring;
 210         vfree(tx_ring->cmd_buf_arr);
 211         tx_ring->cmd_buf_arr = NULL;
 212         kfree(adapter->tx_ring);
 213         adapter->tx_ring = NULL;
 214 }
 215
 216 int qlcnic_alloc_sw_resources(struct qlcnic_adapter *adapter)
 217 {
 218         struct qlcnic_recv_context *recv_ctx;
 219         struct qlcnic_host_rds_ring *rds_ring;
 220         struct qlcnic_host_sds_ring *sds_ring;
 221         struct qlcnic_host_tx_ring *tx_ring;
 222         struct qlcnic_rx_buffer *rx_buf;
 223         int ring, i, size;
 224
 225         struct qlcnic_cmd_buffer *cmd_buf_arr;
 226         struct net_device *netdev = adapter->netdev;
 227
 228         size = sizeof(struct qlcnic_host_tx_ring);
 229         tx_ring = kzalloc(size, GFP_KERNEL);
 230         if (tx_ring == NULL) {
 231                 dev_err(&netdev->dev, "failed to allocate tx ring struct\n");
 232                 return -ENOMEM;
 233         }
 234         adapter->tx_ring = tx_ring;
 235
 236         tx_ring->num_desc = adapter->num_txd;
 237         tx_ring->txq = netdev_get_tx_queue(netdev, 0);
 238
 239         cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
 240         if (cmd_buf_arr == NULL) {
 241                 dev_err(&netdev->dev, "failed to allocate cmd buffer ring\n");
 242                 goto err_out;
 243         }
 244         tx_ring->cmd_buf_arr = cmd_buf_arr;
 245
 246         recv_ctx = &adapter->recv_ctx;
 247
 248         size = adapter->max_rds_rings * sizeof(struct qlcnic_host_rds_ring);
 249         rds_ring = kzalloc(size, GFP_KERNEL);
 250         if (rds_ring == NULL) {
 251                 dev_err(&netdev->dev, "failed to allocate rds ring struct\n");
 252                 goto err_out;
 253         }
 254         recv_ctx->rds_rings = rds_ring;
 255
 256         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
 257                 rds_ring = &recv_ctx->rds_rings[ring];
 258                 switch (ring) {
 259                 case RCV_RING_NORMAL:
 260                         rds_ring->num_desc = adapter->num_rxd;
 261                         rds_ring->dma_size = QLCNIC_P3P_RX_BUF_MAX_LEN;
 262                         rds_ring->skb_size = rds_ring->dma_size + NET_IP_ALIGN;
 263                         break;
 264
 265                 case RCV_RING_JUMBO:
 266                         rds_ring->num_desc = adapter->num_jumbo_rxd;
 267                         rds_ring->dma_size =
 268                                 QLCNIC_P3P_RX_JUMBO_BUF_MAX_LEN;
 269
 270                         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
 271                                 rds_ring->dma_size += QLCNIC_LRO_BUFFER_EXTRA;
 272
 273                         rds_ring->skb_size =
 274                                 rds_ring->dma_size + NET_IP_ALIGN;
 275                         break;
 276                 }
 277                 rds_ring->rx_buf_arr = vzalloc(RCV_BUFF_RINGSIZE(rds_ring));
 278                 if (rds_ring->rx_buf_arr == NULL) {
 279                         dev_err(&netdev->dev, "Failed to allocate "
 280                                 "rx buffer ring %d\n", ring);
 281                         goto err_out;
 282                 }
 283                 INIT_LIST_HEAD(&rds_ring->free_list);
 284                 /*
 285                  * Now go through all of them, set reference handles
 286                  * and put them in the queues.
 287                  */
 288                 rx_buf = rds_ring->rx_buf_arr;
 289                 for (i = 0; i < rds_ring->num_desc; i++) {
 290                         list_add_tail(&rx_buf->list,
 291                                         &rds_ring->free_list);
 292                         rx_buf->ref_handle = i;
 293                         rx_buf++;
 294                 }
 295                 spin_lock_init(&rds_ring->lock);
 296         }
 297
 298         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 299                 sds_ring = &recv_ctx->sds_rings[ring];
 300                 sds_ring->irq = adapter->msix_entries[ring].vector;
 301                 sds_ring->adapter = adapter;
 302                 sds_ring->num_desc = adapter->num_rxd;
 303
 304                 for (i = 0; i < NUM_RCV_DESC_RINGS; i++)
 305                         INIT_LIST_HEAD(&sds_ring->free_list[i]);
 306         }
 307
 308         return 0;
 309
 310 err_out:
 311         qlcnic_free_sw_resources(adapter);
 312         return -ENOMEM;
 313 }
 314
 315 /*
 316  * Utility to translate from internal Phantom CRB address
 317  * to external PCI CRB address.
 318  */
 319 static u32 qlcnic_decode_crb_addr(u32 addr)
 320 {
 321         int i;
 322         u32 base_addr, offset, pci_base;
 323
 324         crb_addr_transform_setup();
 325
 326         pci_base = QLCNIC_ADDR_ERROR;
 327         base_addr = addr & 0xfff00000;
 328         offset = addr & 0x000fffff;
 329
 330         for (i = 0; i < QLCNIC_MAX_CRB_XFORM; i++) {
 331                 if (crb_addr_xform[i] == base_addr) {
 332                         pci_base = i << 20;
 333                         break;
 334                 }
 335         }
 336         if (pci_base == QLCNIC_ADDR_ERROR)
 337                 return pci_base;
 338         else
 339                 return pci_base + offset;
 340 }
 341
 342 #define QLCNIC_MAX_ROM_WAIT_USEC        100
 343
 344 static int qlcnic_wait_rom_done(struct qlcnic_adapter *adapter)
 345 {
 346         long timeout = 0;
 347         long done = 0;
 348
 349         cond_resched();
 350
 351         while (done == 0) {
 352                 done = QLCRD32(adapter, QLCNIC_ROMUSB_GLB_STATUS);
 353                 done &= 2;
 354                 if (++timeout >= QLCNIC_MAX_ROM_WAIT_USEC) {
 355                         dev_err(&adapter->pdev->dev,
 356                                 "Timeout reached  waiting for rom done");
 357                         return -EIO;
 358                 }
 359                 udelay(1);
 360         }
 361         return 0;
 362 }
 363
 364 static int do_rom_fast_read(struct qlcnic_adapter *adapter,
 365                             int addr, int *valp)
 366 {
 367         QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ADDRESS, addr);
 368         QLCWR32(adapter, QLCNIC_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
 369         QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ABYTE_CNT, 3);
 370         QLCWR32(adapter, QLCNIC_ROMUSB_ROM_INSTR_OPCODE, 0xb);
 371         if (qlcnic_wait_rom_done(adapter)) {
 372                 dev_err(&adapter->pdev->dev, "Error waiting for rom done\n");
 373                 return -EIO;
 374         }
 375         /* reset abyte_cnt and dummy_byte_cnt */
 376         QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ABYTE_CNT, 0);
 377         udelay(10);
 378         QLCWR32(adapter, QLCNIC_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
 379
 380         *valp = QLCRD32(adapter, QLCNIC_ROMUSB_ROM_RDATA);
 381         return 0;
 382 }
 383
 384 static int do_rom_fast_read_words(struct qlcnic_adapter *adapter, int addr,
 385                                   u8 *bytes, size_t size)
 386 {
 387         int addridx;
 388         int ret = 0;
 389
 390         for (addridx = addr; addridx < (addr + size); addridx += 4) {
 391                 int v;
 392                 ret = do_rom_fast_read(adapter, addridx, &v);
 393                 if (ret != 0)
 394                         break;
 395                 *(__le32 *)bytes = cpu_to_le32(v);
 396                 bytes += 4;
 397         }
 398
 399         return ret;
 400 }
 401
 402 int
 403 qlcnic_rom_fast_read_words(struct qlcnic_adapter *adapter, int addr,
 404                                 u8 *bytes, size_t size)
 405 {
 406         int ret;
 407
 408         ret = qlcnic_rom_lock(adapter);
 409         if (ret < 0)
 410                 return ret;
 411
 412         ret = do_rom_fast_read_words(adapter, addr, bytes, size);
 413
 414         qlcnic_rom_unlock(adapter);
 415         return ret;
 416 }
 417
 418 int qlcnic_rom_fast_read(struct qlcnic_adapter *adapter, int addr, int *valp)
 419 {
 420         int ret;
 421
 422         if (qlcnic_rom_lock(adapter) != 0)
 423                 return -EIO;
 424
 425         ret = do_rom_fast_read(adapter, addr, valp);
 426         qlcnic_rom_unlock(adapter);
 427         return ret;
 428 }
 429
 430 int qlcnic_pinit_from_rom(struct qlcnic_adapter *adapter)
 431 {
 432         int addr, val;
 433         int i, n, init_delay;
 434         struct crb_addr_pair *buf;
 435         unsigned offset;
 436         u32 off;
 437         struct pci_dev *pdev = adapter->pdev;
 438
 439         QLCWR32(adapter, CRB_CMDPEG_STATE, 0);
 440         QLCWR32(adapter, CRB_RCVPEG_STATE, 0);
 441
 442         qlcnic_rom_lock(adapter);
 443         QLCWR32(adapter, QLCNIC_ROMUSB_GLB_SW_RESET, 0xfeffffff);
 444         qlcnic_rom_unlock(adapter);
 445
 446         /* Init HW CRB block */
 447         if (qlcnic_rom_fast_read(adapter, 0, &n) != 0 || (n != 0xcafecafe) ||
 448                         qlcnic_rom_fast_read(adapter, 4, &n) != 0) {
 449                 dev_err(&pdev->dev, "ERROR Reading crb_init area: val:%x\n", n);
 450                 return -EIO;
 451         }
 452         offset = n & 0xffffU;
 453         n = (n >> 16) & 0xffffU;
 454
 455         if (n >= 1024) {
 456                 dev_err(&pdev->dev, "QLOGIC card flash not initialized.\n");
 457                 return -EIO;
 458         }
 459
 460         buf = kcalloc(n, sizeof(struct crb_addr_pair), GFP_KERNEL);
 461         if (buf == NULL) {
 462                 dev_err(&pdev->dev, "Unable to calloc memory for rom read.\n");
 463                 return -ENOMEM;
 464         }
 465
 466         for (i = 0; i < n; i++) {
 467                 if (qlcnic_rom_fast_read(adapter, 8*i + 4*offset, &val) != 0 ||
 468                 qlcnic_rom_fast_read(adapter, 8*i + 4*offset + 4, &addr) != 0) {
 469                         kfree(buf);
 470                         return -EIO;
 471                 }
 472
 473                 buf[i].addr = addr;
 474                 buf[i].data = val;
 475         }
 476
 477         for (i = 0; i < n; i++) {
 478
 479                 off = qlcnic_decode_crb_addr(buf[i].addr);
 480                 if (off == QLCNIC_ADDR_ERROR) {
 481                         dev_err(&pdev->dev, "CRB init value out of range %x\n",
 482                                         buf[i].addr);
 483                         continue;
 484                 }
 485                 off += QLCNIC_PCI_CRBSPACE;
 486
 487                 if (off & 1)
 488                         continue;
 489
 490                 /* skipping cold reboot MAGIC */
 491                 if (off == QLCNIC_CAM_RAM(0x1fc))
 492                         continue;
 493                 if (off == (QLCNIC_CRB_I2C0 + 0x1c))
 494                         continue;
 495                 if (off == (ROMUSB_GLB + 0xbc)) /* do not reset PCI */
 496                         continue;
 497                 if (off == (ROMUSB_GLB + 0xa8))
 498                         continue;
 499                 if (off == (ROMUSB_GLB + 0xc8)) /* core clock */
 500                         continue;
 501                 if (off == (ROMUSB_GLB + 0x24)) /* MN clock */
 502                         continue;
 503                 if (off == (ROMUSB_GLB + 0x1c)) /* MS clock */
 504                         continue;
 505                 if ((off & 0x0ff00000) == QLCNIC_CRB_DDR_NET)
 506                         continue;
 507                 /* skip the function enable register */
 508                 if (off == QLCNIC_PCIE_REG(PCIE_SETUP_FUNCTION))
 509                         continue;
 510                 if (off == QLCNIC_PCIE_REG(PCIE_SETUP_FUNCTION2))
 511                         continue;
 512                 if ((off & 0x0ff00000) == QLCNIC_CRB_SMB)
 513                         continue;
 514
 515                 init_delay = 1;
 516                 /* After writing this register, HW needs time for CRB */
 517                 /* to quiet down (else crb_window returns 0xffffffff) */
 518                 if (off == QLCNIC_ROMUSB_GLB_SW_RESET)
 519                         init_delay = 1000;
 520
 521                 QLCWR32(adapter, off, buf[i].data);
 522
 523                 msleep(init_delay);
 524         }
 525         kfree(buf);
 526
 527         /* Initialize protocol process engine */
 528         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_D + 0xec, 0x1e);
 529         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_D + 0x4c, 8);
 530         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_I + 0x4c, 8);
 531         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x8, 0);
 532         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0xc, 0);
 533         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x8, 0);
 534         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_1 + 0xc, 0);
 535         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x8, 0);
 536         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_2 + 0xc, 0);
 537         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x8, 0);
 538         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_3 + 0xc, 0);
 539         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x8, 0);
 540         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_4 + 0xc, 0);
 541         msleep(1);
 542         QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS1, 0);
 543         QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS2, 0);
 544         return 0;
 545 }
 546
 547 static int qlcnic_cmd_peg_ready(struct qlcnic_adapter *adapter)
 548 {
 549         u32 val;
 550         int retries = QLCNIC_CMDPEG_CHECK_RETRY_COUNT;
 551
 552         do {
 553                 val = QLCRD32(adapter, CRB_CMDPEG_STATE);
 554
 555                 switch (val) {
 556                 case PHAN_INITIALIZE_COMPLETE:
 557                 case PHAN_INITIALIZE_ACK:
 558                         return 0;
 559                 case PHAN_INITIALIZE_FAILED:
 560                         goto out_err;
 561                 default:
 562                         break;
 563                 }
 564
 565                 msleep(QLCNIC_CMDPEG_CHECK_DELAY);
 566
 567         } while (--retries);
 568
 569         QLCWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
 570
 571 out_err:
 572         dev_err(&adapter->pdev->dev, "Command Peg initialization not "
 573                       "complete, state: 0x%x.\n", val);
 574         return -EIO;
 575 }
 576
 577 static int
 578 qlcnic_receive_peg_ready(struct qlcnic_adapter *adapter)
 579 {
 580         u32 val;
 581         int retries = QLCNIC_RCVPEG_CHECK_RETRY_COUNT;
 582
 583         do {
 584                 val = QLCRD32(adapter, CRB_RCVPEG_STATE);
 585
 586                 if (val == PHAN_PEG_RCV_INITIALIZED)
 587                         return 0;
 588
 589                 msleep(QLCNIC_RCVPEG_CHECK_DELAY);
 590
 591         } while (--retries);
 592
 593         if (!retries) {
 594                 dev_err(&adapter->pdev->dev, "Receive Peg initialization not "
 595                               "complete, state: 0x%x.\n", val);
 596                 return -EIO;
 597         }
 598
 599         return 0;
 600 }
 601
 602 int
 603 qlcnic_check_fw_status(struct qlcnic_adapter *adapter)
 604 {
 605         int err;
 606
 607         err = qlcnic_cmd_peg_ready(adapter);
 608         if (err)
 609                 return err;
 610
 611         err = qlcnic_receive_peg_ready(adapter);
 612         if (err)
 613                 return err;
 614
 615         QLCWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_ACK);
 616
 617         return err;
 618 }
 619
 620 int
 621 qlcnic_setup_idc_param(struct qlcnic_adapter *adapter) {
 622
 623         int timeo;
 624         u32 val;
 625
 626         val = QLCRD32(adapter, QLCNIC_CRB_DEV_PARTITION_INFO);
 627         val = QLC_DEV_GET_DRV(val, adapter->portnum);
 628         if ((val & 0x3) != QLCNIC_TYPE_NIC) {
 629                 dev_err(&adapter->pdev->dev,
 630                         "Not an Ethernet NIC func=%u\n", val);
 631                 return -EIO;
 632         }
 633         adapter->physical_port = (val >> 2);
 634         if (qlcnic_rom_fast_read(adapter, QLCNIC_ROM_DEV_INIT_TIMEOUT, &timeo))
 635                 timeo = QLCNIC_INIT_TIMEOUT_SECS;
 636
 637         adapter->dev_init_timeo = timeo;
 638
 639         if (qlcnic_rom_fast_read(adapter, QLCNIC_ROM_DRV_RESET_TIMEOUT, &timeo))
 640                 timeo = QLCNIC_RESET_TIMEOUT_SECS;
 641
 642         adapter->reset_ack_timeo = timeo;
 643
 644         return 0;
 645 }
 646
 647 int
 648 qlcnic_check_flash_fw_ver(struct qlcnic_adapter *adapter)
 649 {
 650         u32 ver = -1, min_ver;
 651
 652         qlcnic_rom_fast_read(adapter, QLCNIC_FW_VERSION_OFFSET, (int *)&ver);
 653
 654         ver = QLCNIC_DECODE_VERSION(ver);
 655         min_ver = QLCNIC_MIN_FW_VERSION;
 656
 657         if (ver < min_ver) {
 658                 dev_err(&adapter->pdev->dev,
 659                         "firmware version %d.%d.%d unsupported."
 660                         "Min supported version %d.%d.%d\n",
 661                         _major(ver), _minor(ver), _build(ver),
 662                         _major(min_ver), _minor(min_ver), _build(min_ver));
 663                 return -EINVAL;
 664         }
 665
 666         return 0;
 667 }
 668
 669 static int
 670 qlcnic_has_mn(struct qlcnic_adapter *adapter)
 671 {
 672         u32 capability;
 673         capability = 0;
 674
 675         capability = QLCRD32(adapter, QLCNIC_PEG_TUNE_CAPABILITY);
 676         if (capability & QLCNIC_PEG_TUNE_MN_PRESENT)
 677                 return 1;
 678
 679         return 0;
 680 }
 681
 682 static
 683 struct uni_table_desc *qlcnic_get_table_desc(const u8 *unirom, int section)
 684 {
 685         u32 i;
 686         struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
 687         __le32 entries = cpu_to_le32(directory->num_entries);
 688
 689         for (i = 0; i < entries; i++) {
 690
 691                 __le32 offs = cpu_to_le32(directory->findex) +
 692                                 (i * cpu_to_le32(directory->entry_size));
 693                 __le32 tab_type = cpu_to_le32(*((u32 *)&unirom[offs] + 8));
 694
 695                 if (tab_type == section)
 696                         return (struct uni_table_desc *) &unirom[offs];
 697         }
 698
 699         return NULL;
 700 }
 701
 702 #define FILEHEADER_SIZE (14 * 4)
 703
 704 static int
 705 qlcnic_validate_header(struct qlcnic_adapter *adapter)
 706 {
 707         const u8 *unirom = adapter->fw->data;
 708         struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
 709         __le32 fw_file_size = adapter->fw->size;
 710         __le32 entries;
 711         __le32 entry_size;
 712         __le32 tab_size;
 713
 714         if (fw_file_size < FILEHEADER_SIZE)
 715                 return -EINVAL;
 716
 717         entries = cpu_to_le32(directory->num_entries);
 718         entry_size = cpu_to_le32(directory->entry_size);
 719         tab_size = cpu_to_le32(directory->findex) + (entries * entry_size);
 720
 721         if (fw_file_size < tab_size)
 722                 return -EINVAL;
 723
 724         return 0;
 725 }
 726
 727 static int
 728 qlcnic_validate_bootld(struct qlcnic_adapter *adapter)
 729 {
 730         struct uni_table_desc *tab_desc;
 731         struct uni_data_desc *descr;
 732         const u8 *unirom = adapter->fw->data;
 733         int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
 734                                 QLCNIC_UNI_BOOTLD_IDX_OFF));
 735         __le32 offs;
 736         __le32 tab_size;
 737         __le32 data_size;
 738
 739         tab_desc = qlcnic_get_table_desc(unirom, QLCNIC_UNI_DIR_SECT_BOOTLD);
 740
 741         if (!tab_desc)
 742                 return -EINVAL;
 743
 744         tab_size = cpu_to_le32(tab_desc->findex) +
 745                         (cpu_to_le32(tab_desc->entry_size) * (idx + 1));
 746
 747         if (adapter->fw->size < tab_size)
 748                 return -EINVAL;
 749
 750         offs = cpu_to_le32(tab_desc->findex) +
 751                 (cpu_to_le32(tab_desc->entry_size) * (idx));
 752         descr = (struct uni_data_desc *)&unirom[offs];
 753
 754         data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size);
 755
 756         if (adapter->fw->size < data_size)
 757                 return -EINVAL;
 758
 759         return 0;
 760 }
 761
 762 static int
 763 qlcnic_validate_fw(struct qlcnic_adapter *adapter)
 764 {
 765         struct uni_table_desc *tab_desc;
 766         struct uni_data_desc *descr;
 767         const u8 *unirom = adapter->fw->data;
 768         int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
 769                                 QLCNIC_UNI_FIRMWARE_IDX_OFF));
 770         __le32 offs;
 771         __le32 tab_size;
 772         __le32 data_size;
 773
 774         tab_desc = qlcnic_get_table_desc(unirom, QLCNIC_UNI_DIR_SECT_FW);
 775
 776         if (!tab_desc)
 777                 return -EINVAL;
 778
 779         tab_size = cpu_to_le32(tab_desc->findex) +
 780                         (cpu_to_le32(tab_desc->entry_size) * (idx + 1));
 781
 782         if (adapter->fw->size < tab_size)
 783                 return -EINVAL;
 784
 785         offs = cpu_to_le32(tab_desc->findex) +
 786                 (cpu_to_le32(tab_desc->entry_size) * (idx));
 787         descr = (struct uni_data_desc *)&unirom[offs];
 788         data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size);
 789
 790         if (adapter->fw->size < data_size)
 791                 return -EINVAL;
 792
 793         return 0;
 794 }
 795
 796 static int
 797 qlcnic_validate_product_offs(struct qlcnic_adapter *adapter)
 798 {
 799         struct uni_table_desc *ptab_descr;
 800         const u8 *unirom = adapter->fw->data;
 801         int mn_present = qlcnic_has_mn(adapter);
 802         __le32 entries;
 803         __le32 entry_size;
 804         __le32 tab_size;
 805         u32 i;
 806
 807         ptab_descr = qlcnic_get_table_desc(unirom,
 808                                 QLCNIC_UNI_DIR_SECT_PRODUCT_TBL);
 809         if (!ptab_descr)
 810                 return -EINVAL;
 811
 812         entries = cpu_to_le32(ptab_descr->num_entries);
 813         entry_size = cpu_to_le32(ptab_descr->entry_size);
 814         tab_size = cpu_to_le32(ptab_descr->findex) + (entries * entry_size);
 815
 816         if (adapter->fw->size < tab_size)
 817                 return -EINVAL;
 818
 819 nomn:
 820         for (i = 0; i < entries; i++) {
 821
 822                 __le32 flags, file_chiprev, offs;
 823                 u8 chiprev = adapter->ahw.revision_id;
 824                 u32 flagbit;
 825
 826                 offs = cpu_to_le32(ptab_descr->findex) +
 827                                 (i * cpu_to_le32(ptab_descr->entry_size));
 828                 flags = cpu_to_le32(*((int *)&unirom[offs] +
 829                                                 QLCNIC_UNI_FLAGS_OFF));
 830                 file_chiprev = cpu_to_le32(*((int *)&unirom[offs] +
 831                                                 QLCNIC_UNI_CHIP_REV_OFF));
 832
 833                 flagbit = mn_present ? 1 : 2;
 834
 835                 if ((chiprev == file_chiprev) &&
 836                                         ((1ULL << flagbit) & flags)) {
 837                         adapter->file_prd_off = offs;
 838                         return 0;
 839                 }
 840         }
 841         if (mn_present) {
 842                 mn_present = 0;
 843                 goto nomn;
 844         }
 845         return -EINVAL;
 846 }
 847
 848 static int
 849 qlcnic_validate_unified_romimage(struct qlcnic_adapter *adapter)
 850 {
 851         if (qlcnic_validate_header(adapter)) {
 852                 dev_err(&adapter->pdev->dev,
 853                                 "unified image: header validation failed\n");
 854                 return -EINVAL;
 855         }
 856
 857         if (qlcnic_validate_product_offs(adapter)) {
 858                 dev_err(&adapter->pdev->dev,
 859                                 "unified image: product validation failed\n");
 860                 return -EINVAL;
 861         }
 862
 863         if (qlcnic_validate_bootld(adapter)) {
 864                 dev_err(&adapter->pdev->dev,
 865                                 "unified image: bootld validation failed\n");
 866                 return -EINVAL;
 867         }
 868
 869         if (qlcnic_validate_fw(adapter)) {
 870                 dev_err(&adapter->pdev->dev,
 871                                 "unified image: firmware validation failed\n");
 872                 return -EINVAL;
 873         }
 874
 875         return 0;
 876 }
 877
 878 static
 879 struct uni_data_desc *qlcnic_get_data_desc(struct qlcnic_adapter *adapter,
 880                         u32 section, u32 idx_offset)
 881 {
 882         const u8 *unirom = adapter->fw->data;
 883         int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
 884                                                                 idx_offset));
 885         struct uni_table_desc *tab_desc;
 886         __le32 offs;
 887
 888         tab_desc = qlcnic_get_table_desc(unirom, section);
 889
 890         if (tab_desc == NULL)
 891                 return NULL;
 892
 893         offs = cpu_to_le32(tab_desc->findex) +
 894                         (cpu_to_le32(tab_desc->entry_size) * idx);
 895
 896         return (struct uni_data_desc *)&unirom[offs];
 897 }
 898
 899 static u8 *
 900 qlcnic_get_bootld_offs(struct qlcnic_adapter *adapter)
 901 {
 902         u32 offs = QLCNIC_BOOTLD_START;
 903
 904         if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
 905                 offs = cpu_to_le32((qlcnic_get_data_desc(adapter,
 906                                         QLCNIC_UNI_DIR_SECT_BOOTLD,
 907                                         QLCNIC_UNI_BOOTLD_IDX_OFF))->findex);
 908
 909         return (u8 *)&adapter->fw->data[offs];
 910 }
 911
 912 static u8 *
 913 qlcnic_get_fw_offs(struct qlcnic_adapter *adapter)
 914 {
 915         u32 offs = QLCNIC_IMAGE_START;
 916
 917         if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
 918                 offs = cpu_to_le32((qlcnic_get_data_desc(adapter,
 919                                         QLCNIC_UNI_DIR_SECT_FW,
 920                                         QLCNIC_UNI_FIRMWARE_IDX_OFF))->findex);
 921
 922         return (u8 *)&adapter->fw->data[offs];
 923 }
 924
 925 static __le32
 926 qlcnic_get_fw_size(struct qlcnic_adapter *adapter)
 927 {
 928         if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
 929                 return cpu_to_le32((qlcnic_get_data_desc(adapter,
 930                                         QLCNIC_UNI_DIR_SECT_FW,
 931                                         QLCNIC_UNI_FIRMWARE_IDX_OFF))->size);
 932         else
 933                 return cpu_to_le32(
 934                         *(u32 *)&adapter->fw->data[QLCNIC_FW_SIZE_OFFSET]);
 935 }
 936
 937 static __le32
 938 qlcnic_get_fw_version(struct qlcnic_adapter *adapter)
 939 {
 940         struct uni_data_desc *fw_data_desc;
 941         const struct firmware *fw = adapter->fw;
 942         __le32 major, minor, sub;
 943         const u8 *ver_str;
 944         int i, ret;
 945
 946         if (adapter->fw_type != QLCNIC_UNIFIED_ROMIMAGE)
 947                 return cpu_to_le32(*(u32 *)&fw->data[QLCNIC_FW_VERSION_OFFSET]);
 948
 949         fw_data_desc = qlcnic_get_data_desc(adapter, QLCNIC_UNI_DIR_SECT_FW,
 950                         QLCNIC_UNI_FIRMWARE_IDX_OFF);
 951         ver_str = fw->data + cpu_to_le32(fw_data_desc->findex) +
 952                 cpu_to_le32(fw_data_desc->size) - 17;
 953
 954         for (i = 0; i < 12; i++) {
 955                 if (!strncmp(&ver_str[i], "REV=", 4)) {
 956                         ret = sscanf(&ver_str[i+4], "%u.%u.%u ",
 957                                         &major, &minor, &sub);
 958                         if (ret != 3)
 959                                 return 0;
 960                         else
 961                                 return major + (minor << 8) + (sub << 16);
 962                 }
 963         }
 964
 965         return 0;
 966 }
 967
 968 static __le32
 969 qlcnic_get_bios_version(struct qlcnic_adapter *adapter)
 970 {
 971         const struct firmware *fw = adapter->fw;
 972         __le32 bios_ver, prd_off = adapter->file_prd_off;
 973
 974         if (adapter->fw_type != QLCNIC_UNIFIED_ROMIMAGE)
 975                 return cpu_to_le32(
 976                         *(u32 *)&fw->data[QLCNIC_BIOS_VERSION_OFFSET]);
 977
 978         bios_ver = cpu_to_le32(*((u32 *) (&fw->data[prd_off])
 979                                 + QLCNIC_UNI_BIOS_VERSION_OFF));
 980
 981         return (bios_ver << 16) + ((bios_ver >> 8) & 0xff00) + (bios_ver >> 24);
 982 }
 983
 984 static void qlcnic_rom_lock_recovery(struct qlcnic_adapter *adapter)
 985 {
 986         if (qlcnic_pcie_sem_lock(adapter, 2, QLCNIC_ROM_LOCK_ID))
 987                 dev_info(&adapter->pdev->dev, "Resetting rom_lock\n");
 988
 989         qlcnic_pcie_sem_unlock(adapter, 2);
 990 }
 991
 992 static int
 993 qlcnic_check_fw_hearbeat(struct qlcnic_adapter *adapter)
 994 {
 995         u32 heartbeat, ret = -EIO;
 996         int retries = QLCNIC_HEARTBEAT_CHECK_RETRY_COUNT;
 997
 998         adapter->heartbeat = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
 999
1000         do {
1001                 msleep(QLCNIC_HEARTBEAT_PERIOD_MSECS);
1002                 heartbeat = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
1003                 if (heartbeat != adapter->heartbeat) {
1004                         ret = QLCNIC_RCODE_SUCCESS;
1005                         break;
1006                 }
1007         } while (--retries);
1008
1009         return ret;
1010 }
1011
1012 int
1013 qlcnic_need_fw_reset(struct qlcnic_adapter *adapter)
1014 {
1015         if (qlcnic_check_fw_hearbeat(adapter)) {
1016                 qlcnic_rom_lock_recovery(adapter);
1017                 return 1;
1018         }
1019
1020         if (adapter->need_fw_reset)
1021                 return 1;
1022
1023         if (adapter->fw)
1024                 return 1;
1025
1026         return 0;
1027 }
1028
1029 static const char *fw_name[] = {
1030         QLCNIC_UNIFIED_ROMIMAGE_NAME,
1031         QLCNIC_FLASH_ROMIMAGE_NAME,
1032 };
1033
1034 int
1035 qlcnic_load_firmware(struct qlcnic_adapter *adapter)
1036 {
1037         u64 *ptr64;
1038         u32 i, flashaddr, size;
1039         const struct firmware *fw = adapter->fw;
1040         struct pci_dev *pdev = adapter->pdev;
1041
1042         dev_info(&pdev->dev, "loading firmware from %s\n",
1043                         fw_name[adapter->fw_type]);
1044
1045         if (fw) {
1046                 __le64 data;
1047
1048                 size = (QLCNIC_IMAGE_START - QLCNIC_BOOTLD_START) / 8;
1049
1050                 ptr64 = (u64 *)qlcnic_get_bootld_offs(adapter);
1051                 flashaddr = QLCNIC_BOOTLD_START;
1052
1053                 for (i = 0; i < size; i++) {
1054                         data = cpu_to_le64(ptr64[i]);
1055
1056                         if (qlcnic_pci_mem_write_2M(adapter, flashaddr, data))
1057                                 return -EIO;
1058
1059                         flashaddr += 8;
1060                 }
1061
1062                 size = (__force u32)qlcnic_get_fw_size(adapter) / 8;
1063
1064                 ptr64 = (u64 *)qlcnic_get_fw_offs(adapter);
1065                 flashaddr = QLCNIC_IMAGE_START;
1066
1067                 for (i = 0; i < size; i++) {
1068                         data = cpu_to_le64(ptr64[i]);
1069
1070                         if (qlcnic_pci_mem_write_2M(adapter,
1071                                                 flashaddr, data))
1072                                 return -EIO;
1073
1074                         flashaddr += 8;
1075                 }
1076
1077                 size = (__force u32)qlcnic_get_fw_size(adapter) % 8;
1078                 if (size) {
1079                         data = cpu_to_le64(ptr64[i]);
1080
1081                         if (qlcnic_pci_mem_write_2M(adapter,
1082                                                 flashaddr, data))
1083                                 return -EIO;
1084                 }
1085
1086         } else {
1087                 u64 data;
1088                 u32 hi, lo;
1089
1090                 size = (QLCNIC_IMAGE_START - QLCNIC_BOOTLD_START) / 8;
1091                 flashaddr = QLCNIC_BOOTLD_START;
1092
1093                 for (i = 0; i < size; i++) {
1094                         if (qlcnic_rom_fast_read(adapter,
1095                                         flashaddr, (int *)&lo) != 0)
1096                                 return -EIO;
1097                         if (qlcnic_rom_fast_read(adapter,
1098                                         flashaddr + 4, (int *)&hi) != 0)
1099                                 return -EIO;
1100
1101                         data = (((u64)hi << 32) | lo);
1102
1103                         if (qlcnic_pci_mem_write_2M(adapter,
1104                                                 flashaddr, data))
1105                                 return -EIO;
1106
1107                         flashaddr += 8;
1108                 }
1109         }
1110         msleep(1);
1111
1112         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x18, 0x1020);
1113         QLCWR32(adapter, QLCNIC_ROMUSB_GLB_SW_RESET, 0x80001e);
1114         return 0;
1115 }
1116
1117 static int
1118 qlcnic_validate_firmware(struct qlcnic_adapter *adapter)
1119 {
1120         __le32 val;
1121         u32 ver, bios, min_size;
1122         struct pci_dev *pdev = adapter->pdev;
1123         const struct firmware *fw = adapter->fw;
1124         u8 fw_type = adapter->fw_type;
1125
1126         if (fw_type == QLCNIC_UNIFIED_ROMIMAGE) {
1127                 if (qlcnic_validate_unified_romimage(adapter))
1128                         return -EINVAL;
1129
1130                 min_size = QLCNIC_UNI_FW_MIN_SIZE;
1131         } else {
1132                 val = cpu_to_le32(*(u32 *)&fw->data[QLCNIC_FW_MAGIC_OFFSET]);
1133                 if ((__force u32)val != QLCNIC_BDINFO_MAGIC)
1134                         return -EINVAL;
1135
1136                 min_size = QLCNIC_FW_MIN_SIZE;
1137         }
1138
1139         if (fw->size < min_size)
1140                 return -EINVAL;
1141
1142         val = qlcnic_get_fw_version(adapter);
1143         ver = QLCNIC_DECODE_VERSION(val);
1144
1145         if (ver < QLCNIC_MIN_FW_VERSION) {
1146                 dev_err(&pdev->dev,
1147                                 "%s: firmware version %d.%d.%d unsupported\n",
1148                 fw_name[fw_type], _major(ver), _minor(ver), _build(ver));
1149                 return -EINVAL;
1150         }
1151
1152         val = qlcnic_get_bios_version(adapter);
1153         qlcnic_rom_fast_read(adapter, QLCNIC_BIOS_VERSION_OFFSET, (int *)&bios);
1154         if ((__force u32)val != bios) {
1155                 dev_err(&pdev->dev, "%s: firmware bios is incompatible\n",
1156                                 fw_name[fw_type]);
1157                 return -EINVAL;
1158         }
1159
1160         QLCWR32(adapter, QLCNIC_CAM_RAM(0x1fc), QLCNIC_BDINFO_MAGIC);
1161         return 0;
1162 }
1163
1164 static void
1165 qlcnic_get_next_fwtype(struct qlcnic_adapter *adapter)
1166 {
1167         u8 fw_type;
1168
1169         switch (adapter->fw_type) {
1170         case QLCNIC_UNKNOWN_ROMIMAGE:
1171                 fw_type = QLCNIC_UNIFIED_ROMIMAGE;
1172                 break;
1173
1174         case QLCNIC_UNIFIED_ROMIMAGE:
1175         default:
1176                 fw_type = QLCNIC_FLASH_ROMIMAGE;
1177                 break;
1178         }
1179
1180         adapter->fw_type = fw_type;
1181 }
1182
1183
1184
1185 void qlcnic_request_firmware(struct qlcnic_adapter *adapter)
1186 {
1187         struct pci_dev *pdev = adapter->pdev;
1188         int rc;
1189
1190         adapter->fw_type = QLCNIC_UNKNOWN_ROMIMAGE;
1191
1192 next:
1193         qlcnic_get_next_fwtype(adapter);
1194
1195         if (adapter->fw_type == QLCNIC_FLASH_ROMIMAGE) {
1196                 adapter->fw = NULL;
1197         } else {
1198                 rc = request_firmware(&adapter->fw,
1199                                 fw_name[adapter->fw_type], &pdev->dev);
1200                 if (rc != 0)
1201                         goto next;
1202
1203                 rc = qlcnic_validate_firmware(adapter);
1204                 if (rc != 0) {
1205                         release_firmware(adapter->fw);
1206                         msleep(1);
1207                         goto next;
1208                 }
1209         }
1210 }
1211
1212
1213 void
1214 qlcnic_release_firmware(struct qlcnic_adapter *adapter)
1215 {
1216         if (adapter->fw)
1217                 release_firmware(adapter->fw);
1218         adapter->fw = NULL;
1219 }
1220
1221 static void
1222 qlcnic_handle_linkevent(struct qlcnic_adapter *adapter,
1223                                 struct qlcnic_fw_msg *msg)
1224 {
1225         u32 cable_OUI;
1226         u16 cable_len;
1227         u16 link_speed;
1228         u8  link_status, module, duplex, autoneg;
1229         struct net_device *netdev = adapter->netdev;
1230
1231         adapter->has_link_events = 1;
1232
1233         cable_OUI = msg->body[1] & 0xffffffff;
1234         cable_len = (msg->body[1] >> 32) & 0xffff;
1235         link_speed = (msg->body[1] >> 48) & 0xffff;
1236
1237         link_status = msg->body[2] & 0xff;
1238         duplex = (msg->body[2] >> 16) & 0xff;
1239         autoneg = (msg->body[2] >> 24) & 0xff;
1240
1241         module = (msg->body[2] >> 8) & 0xff;
1242         if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLE)
1243                 dev_info(&netdev->dev, "unsupported cable: OUI 0x%x, "
1244                                 "length %d\n", cable_OUI, cable_len);
1245         else if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLELEN)
1246                 dev_info(&netdev->dev, "unsupported cable length %d\n",
1247                                 cable_len);
1248
1249         qlcnic_advert_link_change(adapter, link_status);
1250
1251         if (duplex == LINKEVENT_FULL_DUPLEX)
1252                 adapter->link_duplex = DUPLEX_FULL;
1253         else
1254                 adapter->link_duplex = DUPLEX_HALF;
1255
1256         adapter->module_type = module;
1257         adapter->link_autoneg = autoneg;
1258         adapter->link_speed = link_speed;
1259 }
1260
1261 static void
1262 qlcnic_handle_fw_message(int desc_cnt, int index,
1263                 struct qlcnic_host_sds_ring *sds_ring)
1264 {
1265         struct qlcnic_fw_msg msg;
1266         struct status_desc *desc;
1267         int i = 0, opcode;
1268
1269         while (desc_cnt > 0 && i < 8) {
1270                 desc = &sds_ring->desc_head[index];
1271                 msg.words[i++] = le64_to_cpu(desc->status_desc_data[0]);
1272                 msg.words[i++] = le64_to_cpu(desc->status_desc_data[1]);
1273
1274                 index = get_next_index(index, sds_ring->num_desc);
1275                 desc_cnt--;
1276         }
1277
1278         opcode = qlcnic_get_nic_msg_opcode(msg.body[0]);
1279         switch (opcode) {
1280         case QLCNIC_C2H_OPCODE_GET_LINKEVENT_RESPONSE:
1281                 qlcnic_handle_linkevent(sds_ring->adapter, &msg);
1282                 break;
1283         default:
1284                 break;
1285         }
1286 }
1287
1288 static int
1289 qlcnic_alloc_rx_skb(struct qlcnic_adapter *adapter,
1290                 struct qlcnic_host_rds_ring *rds_ring,
1291                 struct qlcnic_rx_buffer *buffer)
1292 {
1293         struct sk_buff *skb;
1294         dma_addr_t dma;
1295         struct pci_dev *pdev = adapter->pdev;
1296
1297         skb = dev_alloc_skb(rds_ring->skb_size);
1298         if (!skb) {
1299                 adapter->stats.skb_alloc_failure++;
1300                 return -ENOMEM;
1301         }
1302
1303         skb_reserve(skb, NET_IP_ALIGN);
1304
1305         dma = pci_map_single(pdev, skb->data,
1306                         rds_ring->dma_size, PCI_DMA_FROMDEVICE);
1307
1308         if (pci_dma_mapping_error(pdev, dma)) {
1309                 adapter->stats.rx_dma_map_error++;
1310                 dev_kfree_skb_any(skb);
1311                 return -ENOMEM;
1312         }
1313
1314         buffer->skb = skb;
1315         buffer->dma = dma;
1316
1317         return 0;
1318 }
1319
1320 static struct sk_buff *qlcnic_process_rxbuf(struct qlcnic_adapter *adapter,
1321                 struct qlcnic_host_rds_ring *rds_ring, u16 index, u16 cksum)
1322 {
1323         struct qlcnic_rx_buffer *buffer;
1324         struct sk_buff *skb;
1325
1326         buffer = &rds_ring->rx_buf_arr[index];
1327
1328         if (unlikely(buffer->skb == NULL)) {
1329                 WARN_ON(1);
1330                 return NULL;
1331         }
1332
1333         pci_unmap_single(adapter->pdev, buffer->dma, rds_ring->dma_size,
1334                         PCI_DMA_FROMDEVICE);
1335
1336         skb = buffer->skb;
1337
1338         if (likely(adapter->rx_csum && (cksum == STATUS_CKSUM_OK ||
1339                                                 cksum == STATUS_CKSUM_LOOP))) {
1340                 adapter->stats.csummed++;
1341                 skb->ip_summed = CHECKSUM_UNNECESSARY;
1342         } else {
1343                 skb_checksum_none_assert(skb);
1344         }
1345
1346         skb->dev = adapter->netdev;
1347
1348         buffer->skb = NULL;
1349
1350         return skb;
1351 }
1352
1353 static int
1354 qlcnic_check_rx_tagging(struct qlcnic_adapter *adapter, struct sk_buff *skb,
1355                         u16 *vlan_tag)
1356 {
1357         struct ethhdr *eth_hdr;
1358
1359         if (!__vlan_get_tag(skb, vlan_tag)) {
1360                 eth_hdr = (struct ethhdr *) skb->data;
1361                 memmove(skb->data + VLAN_HLEN, eth_hdr, ETH_ALEN * 2);
1362                 skb_pull(skb, VLAN_HLEN);
1363         }
1364         if (!adapter->pvid)
1365                 return 0;
1366
1367         if (*vlan_tag == adapter->pvid) {
1368                 /* Outer vlan tag. Packet should follow non-vlan path */
1369                 *vlan_tag = 0xffff;
1370                 return 0;
1371         }
1372         if (adapter->flags & QLCNIC_TAGGING_ENABLED)
1373                 return 0;
1374
1375         return -EINVAL;
1376 }
1377
1378 static struct qlcnic_rx_buffer *
1379 qlcnic_process_rcv(struct qlcnic_adapter *adapter,
1380                 struct qlcnic_host_sds_ring *sds_ring,
1381                 int ring, u64 sts_data0)
1382 {
1383         struct net_device *netdev = adapter->netdev;
1384         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1385         struct qlcnic_rx_buffer *buffer;
1386         struct sk_buff *skb;
1387         struct qlcnic_host_rds_ring *rds_ring;
1388         int index, length, cksum, pkt_offset;
1389         u16 vid = 0xffff;
1390
1391         if (unlikely(ring >= adapter->max_rds_rings))
1392                 return NULL;
1393
1394         rds_ring = &recv_ctx->rds_rings[ring];
1395
1396         index = qlcnic_get_sts_refhandle(sts_data0);
1397         if (unlikely(index >= rds_ring->num_desc))
1398                 return NULL;
1399
1400         buffer = &rds_ring->rx_buf_arr[index];
1401
1402         length = qlcnic_get_sts_totallength(sts_data0);
1403         cksum  = qlcnic_get_sts_status(sts_data0);
1404         pkt_offset = qlcnic_get_sts_pkt_offset(sts_data0);
1405
1406         skb = qlcnic_process_rxbuf(adapter, rds_ring, index, cksum);
1407         if (!skb)
1408                 return buffer;
1409
1410         if (length > rds_ring->skb_size)
1411                 skb_put(skb, rds_ring->skb_size);
1412         else
1413                 skb_put(skb, length);
1414
1415         if (pkt_offset)
1416                 skb_pull(skb, pkt_offset);
1417
1418         if (unlikely(qlcnic_check_rx_tagging(adapter, skb, &vid))) {
1419                 adapter->stats.rxdropped++;
1420                 dev_kfree_skb(skb);
1421                 return buffer;
1422         }
1423
1424         skb->protocol = eth_type_trans(skb, netdev);
1425
1426         if ((vid != 0xffff) && adapter->vlgrp)
1427                 vlan_gro_receive(&sds_ring->napi, adapter->vlgrp, vid, skb);
1428         else
1429                 napi_gro_receive(&sds_ring->napi, skb);
1430
1431         adapter->stats.rx_pkts++;
1432         adapter->stats.rxbytes += length;
1433
1434         return buffer;
1435 }
1436
1437 #define QLC_TCP_HDR_SIZE            20
1438 #define QLC_TCP_TS_OPTION_SIZE      12
1439 #define QLC_TCP_TS_HDR_SIZE         (QLC_TCP_HDR_SIZE + QLC_TCP_TS_OPTION_SIZE)
1440
1441 static struct qlcnic_rx_buffer *
1442 qlcnic_process_lro(struct qlcnic_adapter *adapter,
1443                 struct qlcnic_host_sds_ring *sds_ring,
1444                 int ring, u64 sts_data0, u64 sts_data1)
1445 {
1446         struct net_device *netdev = adapter->netdev;
1447         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1448         struct qlcnic_rx_buffer *buffer;
1449         struct sk_buff *skb;
1450         struct qlcnic_host_rds_ring *rds_ring;
1451         struct iphdr *iph;
1452         struct tcphdr *th;
1453         bool push, timestamp;
1454         int l2_hdr_offset, l4_hdr_offset;
1455         int index;
1456         u16 lro_length, length, data_offset;
1457         u32 seq_number;
1458         u16 vid = 0xffff;
1459
1460         if (unlikely(ring > adapter->max_rds_rings))
1461                 return NULL;
1462
1463         rds_ring = &recv_ctx->rds_rings[ring];
1464
1465         index = qlcnic_get_lro_sts_refhandle(sts_data0);
1466         if (unlikely(index > rds_ring->num_desc))
1467                 return NULL;
1468
1469         buffer = &rds_ring->rx_buf_arr[index];
1470
1471         timestamp = qlcnic_get_lro_sts_timestamp(sts_data0);
1472         lro_length = qlcnic_get_lro_sts_length(sts_data0);
1473         l2_hdr_offset = qlcnic_get_lro_sts_l2_hdr_offset(sts_data0);
1474         l4_hdr_offset = qlcnic_get_lro_sts_l4_hdr_offset(sts_data0);
1475         push = qlcnic_get_lro_sts_push_flag(sts_data0);
1476         seq_number = qlcnic_get_lro_sts_seq_number(sts_data1);
1477
1478         skb = qlcnic_process_rxbuf(adapter, rds_ring, index, STATUS_CKSUM_OK);
1479         if (!skb)
1480                 return buffer;
1481
1482         if (timestamp)
1483                 data_offset = l4_hdr_offset + QLC_TCP_TS_HDR_SIZE;
1484         else
1485                 data_offset = l4_hdr_offset + QLC_TCP_HDR_SIZE;
1486
1487         skb_put(skb, lro_length + data_offset);
1488
1489         skb_pull(skb, l2_hdr_offset);
1490
1491         if (unlikely(qlcnic_check_rx_tagging(adapter, skb, &vid))) {
1492                 adapter->stats.rxdropped++;
1493                 dev_kfree_skb(skb);
1494                 return buffer;
1495         }
1496
1497         skb->protocol = eth_type_trans(skb, netdev);
1498
1499         iph = (struct iphdr *)skb->data;
1500         th = (struct tcphdr *)(skb->data + (iph->ihl << 2));
1501
1502         length = (iph->ihl << 2) + (th->doff << 2) + lro_length;
1503         iph->tot_len = htons(length);
1504         iph->check = 0;
1505         iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
1506         th->psh = push;
1507         th->seq = htonl(seq_number);
1508
1509         length = skb->len;
1510
1511         if ((vid != 0xffff) && adapter->vlgrp)
1512                 vlan_hwaccel_receive_skb(skb, adapter->vlgrp, vid);
1513         else
1514                 netif_receive_skb(skb);
1515
1516         adapter->stats.lro_pkts++;
1517         adapter->stats.lrobytes += length;
1518
1519         return buffer;
1520 }
1521
1522 int
1523 qlcnic_process_rcv_ring(struct qlcnic_host_sds_ring *sds_ring, int max)
1524 {
1525         struct qlcnic_adapter *adapter = sds_ring->adapter;
1526         struct list_head *cur;
1527         struct status_desc *desc;
1528         struct qlcnic_rx_buffer *rxbuf;
1529         u64 sts_data0, sts_data1;
1530
1531         int count = 0;
1532         int opcode, ring, desc_cnt;
1533         u32 consumer = sds_ring->consumer;
1534
1535         while (count < max) {
1536                 desc = &sds_ring->desc_head[consumer];
1537                 sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
1538
1539                 if (!(sts_data0 & STATUS_OWNER_HOST))
1540                         break;
1541
1542                 desc_cnt = qlcnic_get_sts_desc_cnt(sts_data0);
1543                 opcode = qlcnic_get_sts_opcode(sts_data0);
1544
1545                 switch (opcode) {
1546                 case QLCNIC_RXPKT_DESC:
1547                 case QLCNIC_OLD_RXPKT_DESC:
1548                 case QLCNIC_SYN_OFFLOAD:
1549                         ring = qlcnic_get_sts_type(sts_data0);
1550                         rxbuf = qlcnic_process_rcv(adapter, sds_ring,
1551                                         ring, sts_data0);
1552                         break;
1553                 case QLCNIC_LRO_DESC:
1554                         ring = qlcnic_get_lro_sts_type(sts_data0);
1555                         sts_data1 = le64_to_cpu(desc->status_desc_data[1]);
1556                         rxbuf = qlcnic_process_lro(adapter, sds_ring,
1557                                         ring, sts_data0, sts_data1);
1558                         break;
1559                 case QLCNIC_RESPONSE_DESC:
1560                         qlcnic_handle_fw_message(desc_cnt, consumer, sds_ring);
1561                 default:
1562                         goto skip;
1563                 }
1564
1565                 WARN_ON(desc_cnt > 1);
1566
1567                 if (likely(rxbuf))
1568                         list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]);
1569                 else
1570                         adapter->stats.null_rxbuf++;
1571
1572 skip:
1573                 for (; desc_cnt > 0; desc_cnt--) {
1574                         desc = &sds_ring->desc_head[consumer];
1575                         desc->status_desc_data[0] =
1576                                 cpu_to_le64(STATUS_OWNER_PHANTOM);
1577                         consumer = get_next_index(consumer, sds_ring->num_desc);
1578                 }
1579                 count++;
1580         }
1581
1582         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1583                 struct qlcnic_host_rds_ring *rds_ring =
1584                         &adapter->recv_ctx.rds_rings[ring];
1585
1586                 if (!list_empty(&sds_ring->free_list[ring])) {
1587                         list_for_each(cur, &sds_ring->free_list[ring]) {
1588                                 rxbuf = list_entry(cur,
1589                                                 struct qlcnic_rx_buffer, list);
1590                                 qlcnic_alloc_rx_skb(adapter, rds_ring, rxbuf);
1591                         }
1592                         spin_lock(&rds_ring->lock);
1593                         list_splice_tail_init(&sds_ring->free_list[ring],
1594                                                 &rds_ring->free_list);
1595                         spin_unlock(&rds_ring->lock);
1596                 }
1597
1598                 qlcnic_post_rx_buffers_nodb(adapter, rds_ring);
1599         }
1600
1601         if (count) {
1602                 sds_ring->consumer = consumer;
1603                 writel(consumer, sds_ring->crb_sts_consumer);
1604         }
1605
1606         return count;
1607 }
1608
1609 void
1610 qlcnic_post_rx_buffers(struct qlcnic_adapter *adapter, u32 ringid,
1611         struct qlcnic_host_rds_ring *rds_ring)
1612 {
1613         struct rcv_desc *pdesc;
1614         struct qlcnic_rx_buffer *buffer;
1615         int producer, count = 0;
1616         struct list_head *head;
1617
1618         producer = rds_ring->producer;
1619
1620         head = &rds_ring->free_list;
1621         while (!list_empty(head)) {
1622
1623                 buffer = list_entry(head->next, struct qlcnic_rx_buffer, list);
1624
1625                 if (!buffer->skb) {
1626                         if (qlcnic_alloc_rx_skb(adapter, rds_ring, buffer))
1627                                 break;
1628                 }
1629
1630                 count++;
1631                 list_del(&buffer->list);
1632
1633                 /* make a rcv descriptor  */
1634                 pdesc = &rds_ring->desc_head[producer];
1635                 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1636                 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1637                 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1638
1639                 producer = get_next_index(producer, rds_ring->num_desc);
1640         }
1641
1642         if (count) {
1643                 rds_ring->producer = producer;
1644                 writel((producer-1) & (rds_ring->num_desc-1),
1645                                 rds_ring->crb_rcv_producer);
1646         }
1647 }
1648
1649 static void
1650 qlcnic_post_rx_buffers_nodb(struct qlcnic_adapter *adapter,
1651                 struct qlcnic_host_rds_ring *rds_ring)
1652 {
1653         struct rcv_desc *pdesc;
1654         struct qlcnic_rx_buffer *buffer;
1655         int producer, count = 0;
1656         struct list_head *head;
1657
1658         if (!spin_trylock(&rds_ring->lock))
1659                 return;
1660
1661         producer = rds_ring->producer;
1662
1663         head = &rds_ring->free_list;
1664         while (!list_empty(head)) {
1665
1666                 buffer = list_entry(head->next, struct qlcnic_rx_buffer, list);
1667
1668                 if (!buffer->skb) {
1669                         if (qlcnic_alloc_rx_skb(adapter, rds_ring, buffer))
1670                                 break;
1671                 }
1672
1673                 count++;
1674                 list_del(&buffer->list);
1675
1676                 /* make a rcv descriptor  */
1677                 pdesc = &rds_ring->desc_head[producer];
1678                 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1679                 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1680                 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1681
1682                 producer = get_next_index(producer, rds_ring->num_desc);
1683         }
1684
1685         if (count) {
1686                 rds_ring->producer = producer;
1687                 writel((producer - 1) & (rds_ring->num_desc - 1),
1688                                 rds_ring->crb_rcv_producer);
1689         }
1690         spin_unlock(&rds_ring->lock);
1691 }
1692
1693 static void dump_skb(struct sk_buff *skb)
1694 {
1695         int i;
1696         unsigned char *data = skb->data;
1697
1698         for (i = 0; i < skb->len; i++) {
1699                 printk("%02x ", data[i]);
1700                 if ((i & 0x0f) == 8)
1701                         printk("\n");
1702         }
1703 }
1704
1705 static struct qlcnic_rx_buffer *
1706 qlcnic_process_rcv_diag(struct qlcnic_adapter *adapter,
1707                 struct qlcnic_host_sds_ring *sds_ring,
1708                 int ring, u64 sts_data0)
1709 {
1710         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1711         struct qlcnic_rx_buffer *buffer;
1712         struct sk_buff *skb;
1713         struct qlcnic_host_rds_ring *rds_ring;
1714         int index, length, cksum, pkt_offset;
1715
1716         if (unlikely(ring >= adapter->max_rds_rings))
1717                 return NULL;
1718
1719         rds_ring = &recv_ctx->rds_rings[ring];
1720
1721         index = qlcnic_get_sts_refhandle(sts_data0);
1722         if (unlikely(index >= rds_ring->num_desc))
1723                 return NULL;
1724
1725         buffer = &rds_ring->rx_buf_arr[index];
1726
1727         length = qlcnic_get_sts_totallength(sts_data0);
1728         cksum  = qlcnic_get_sts_status(sts_data0);
1729         pkt_offset = qlcnic_get_sts_pkt_offset(sts_data0);
1730
1731         skb = qlcnic_process_rxbuf(adapter, rds_ring, index, cksum);
1732         if (!skb)
1733                 return buffer;
1734
1735         if (length > rds_ring->skb_size)
1736                 skb_put(skb, rds_ring->skb_size);
1737         else
1738                 skb_put(skb, length);
1739
1740         if (pkt_offset)
1741                 skb_pull(skb, pkt_offset);
1742
1743         if (!qlcnic_check_loopback_buff(skb->data))
1744                 adapter->diag_cnt++;
1745         else
1746                 dump_skb(skb);
1747
1748         dev_kfree_skb_any(skb);
1749         adapter->stats.rx_pkts++;
1750         adapter->stats.rxbytes += length;
1751
1752         return buffer;
1753 }
1754
1755 void
1756 qlcnic_process_rcv_ring_diag(struct qlcnic_host_sds_ring *sds_ring)
1757 {
1758         struct qlcnic_adapter *adapter = sds_ring->adapter;
1759         struct status_desc *desc;
1760         struct qlcnic_rx_buffer *rxbuf;
1761         u64 sts_data0;
1762
1763         int opcode, ring, desc_cnt;
1764         u32 consumer = sds_ring->consumer;
1765
1766         desc = &sds_ring->desc_head[consumer];
1767         sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
1768
1769         if (!(sts_data0 & STATUS_OWNER_HOST))
1770                 return;
1771
1772         desc_cnt = qlcnic_get_sts_desc_cnt(sts_data0);
1773         opcode = qlcnic_get_sts_opcode(sts_data0);
1774
1775         ring = qlcnic_get_sts_type(sts_data0);
1776         rxbuf = qlcnic_process_rcv_diag(adapter, sds_ring,
1777                                         ring, sts_data0);
1778
1779         desc->status_desc_data[0] = cpu_to_le64(STATUS_OWNER_PHANTOM);
1780         consumer = get_next_index(consumer, sds_ring->num_desc);
1781
1782         sds_ring->consumer = consumer;
1783         writel(consumer, sds_ring->crb_sts_consumer);
1784 }
1785
1786 void
1787 qlcnic_fetch_mac(struct qlcnic_adapter *adapter, u32 off1, u32 off2,
1788                         u8 alt_mac, u8 *mac)
1789 {
1790         u32 mac_low, mac_high;
1791         int i;
1792
1793         mac_low = QLCRD32(adapter, off1);
1794         mac_high = QLCRD32(adapter, off2);
1795
1796         if (alt_mac) {
1797                 mac_low |= (mac_low >> 16) | (mac_high << 16);
1798                 mac_high >>= 16;
1799         }
1800
1801         for (i = 0; i < 2; i++)
1802                 mac[i] = (u8)(mac_high >> ((1 - i) * 8));
1803         for (i = 2; i < 6; i++)
1804                 mac[i] = (u8)(mac_low >> ((5 - i) * 8));
1805 }