drivers/net/qlcnic/qlcnic_init.c

   1 /*
   2  * QLogic qlcnic NIC Driver
   3  * Copyright (c)  2009-2010 QLogic Corporation
   4  *
   5  * See LICENSE.qlcnic for copyright and licensing details.
   6  */
   7
   8 #include <linux/netdevice.h>
   9 #include <linux/delay.h>
  10 #include <linux/slab.h>
  11 #include <linux/if_vlan.h>
  12 #include "qlcnic.h"
  13
  14 struct crb_addr_pair {
  15         u32 addr;
  16         u32 data;
  17 };
  18
  19 #define QLCNIC_MAX_CRB_XFORM 60
  20 static unsigned int crb_addr_xform[QLCNIC_MAX_CRB_XFORM];
  21
  22 #define crb_addr_transform(name) \
  23         (crb_addr_xform[QLCNIC_HW_PX_MAP_CRB_##name] = \
  24         QLCNIC_HW_CRB_HUB_AGT_ADR_##name << 20)
  25
  26 #define QLCNIC_ADDR_ERROR (0xffffffff)
  27
  28 static void
  29 qlcnic_post_rx_buffers_nodb(struct qlcnic_adapter *adapter,
  30                 struct qlcnic_host_rds_ring *rds_ring);
  31
  32 static int
  33 qlcnic_check_fw_hearbeat(struct qlcnic_adapter *adapter);
  34
  35 static void crb_addr_transform_setup(void)
  36 {
  37         crb_addr_transform(XDMA);
  38         crb_addr_transform(TIMR);
  39         crb_addr_transform(SRE);
  40         crb_addr_transform(SQN3);
  41         crb_addr_transform(SQN2);
  42         crb_addr_transform(SQN1);
  43         crb_addr_transform(SQN0);
  44         crb_addr_transform(SQS3);
  45         crb_addr_transform(SQS2);
  46         crb_addr_transform(SQS1);
  47         crb_addr_transform(SQS0);
  48         crb_addr_transform(RPMX7);
  49         crb_addr_transform(RPMX6);
  50         crb_addr_transform(RPMX5);
  51         crb_addr_transform(RPMX4);
  52         crb_addr_transform(RPMX3);
  53         crb_addr_transform(RPMX2);
  54         crb_addr_transform(RPMX1);
  55         crb_addr_transform(RPMX0);
  56         crb_addr_transform(ROMUSB);
  57         crb_addr_transform(SN);
  58         crb_addr_transform(QMN);
  59         crb_addr_transform(QMS);
  60         crb_addr_transform(PGNI);
  61         crb_addr_transform(PGND);
  62         crb_addr_transform(PGN3);
  63         crb_addr_transform(PGN2);
  64         crb_addr_transform(PGN1);
  65         crb_addr_transform(PGN0);
  66         crb_addr_transform(PGSI);
  67         crb_addr_transform(PGSD);
  68         crb_addr_transform(PGS3);
  69         crb_addr_transform(PGS2);
  70         crb_addr_transform(PGS1);
  71         crb_addr_transform(PGS0);
  72         crb_addr_transform(PS);
  73         crb_addr_transform(PH);
  74         crb_addr_transform(NIU);
  75         crb_addr_transform(I2Q);
  76         crb_addr_transform(EG);
  77         crb_addr_transform(MN);
  78         crb_addr_transform(MS);
  79         crb_addr_transform(CAS2);
  80         crb_addr_transform(CAS1);
  81         crb_addr_transform(CAS0);
  82         crb_addr_transform(CAM);
  83         crb_addr_transform(C2C1);
  84         crb_addr_transform(C2C0);
  85         crb_addr_transform(SMB);
  86         crb_addr_transform(OCM0);
  87         crb_addr_transform(I2C0);
  88 }
  89
  90 void qlcnic_release_rx_buffers(struct qlcnic_adapter *adapter)
  91 {
  92         struct qlcnic_recv_context *recv_ctx;
  93         struct qlcnic_host_rds_ring *rds_ring;
  94         struct qlcnic_rx_buffer *rx_buf;
  95         int i, ring;
  96
  97         recv_ctx = &adapter->recv_ctx;
  98         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
  99                 rds_ring = &recv_ctx->rds_rings[ring];
 100                 for (i = 0; i < rds_ring->num_desc; ++i) {
 101                         rx_buf = &(rds_ring->rx_buf_arr[i]);
 102                         if (rx_buf->skb == NULL)
 103                                 continue;
 104
 105                         pci_unmap_single(adapter->pdev,
 106                                         rx_buf->dma,
 107                                         rds_ring->dma_size,
 108                                         PCI_DMA_FROMDEVICE);
 109
 110                         dev_kfree_skb_any(rx_buf->skb);
 111                 }
 112         }
 113 }
 114
 115 void qlcnic_reset_rx_buffers_list(struct qlcnic_adapter *adapter)
 116 {
 117         struct qlcnic_recv_context *recv_ctx;
 118         struct qlcnic_host_rds_ring *rds_ring;
 119         struct qlcnic_rx_buffer *rx_buf;
 120         int i, ring;
 121
 122         recv_ctx = &adapter->recv_ctx;
 123         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
 124                 rds_ring = &recv_ctx->rds_rings[ring];
 125
 126                 INIT_LIST_HEAD(&rds_ring->free_list);
 127
 128                 rx_buf = rds_ring->rx_buf_arr;
 129                 for (i = 0; i < rds_ring->num_desc; i++) {
 130                         list_add_tail(&rx_buf->list,
 131                                         &rds_ring->free_list);
 132                         rx_buf++;
 133                 }
 134         }
 135 }
 136
 137 void qlcnic_release_tx_buffers(struct qlcnic_adapter *adapter)
 138 {
 139         struct qlcnic_cmd_buffer *cmd_buf;
 140         struct qlcnic_skb_frag *buffrag;
 141         int i, j;
 142         struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
 143
 144         cmd_buf = tx_ring->cmd_buf_arr;
 145         for (i = 0; i < tx_ring->num_desc; i++) {
 146                 buffrag = cmd_buf->frag_array;
 147                 if (buffrag->dma) {
 148                         pci_unmap_single(adapter->pdev, buffrag->dma,
 149                                          buffrag->length, PCI_DMA_TODEVICE);
 150                         buffrag->dma = 0ULL;
 151                 }
 152                 for (j = 0; j < cmd_buf->frag_count; j++) {
 153                         buffrag++;
 154                         if (buffrag->dma) {
 155                                 pci_unmap_page(adapter->pdev, buffrag->dma,
 156                                                buffrag->length,
 157                                                PCI_DMA_TODEVICE);
 158                                 buffrag->dma = 0ULL;
 159                         }
 160                 }
 161                 if (cmd_buf->skb) {
 162                         dev_kfree_skb_any(cmd_buf->skb);
 163                         cmd_buf->skb = NULL;
 164                 }
 165                 cmd_buf++;
 166         }
 167 }
 168
 169 void qlcnic_free_sw_resources(struct qlcnic_adapter *adapter)
 170 {
 171         struct qlcnic_recv_context *recv_ctx;
 172         struct qlcnic_host_rds_ring *rds_ring;
 173         struct qlcnic_host_tx_ring *tx_ring;
 174         int ring;
 175
 176         recv_ctx = &adapter->recv_ctx;
 177
 178         if (recv_ctx->rds_rings == NULL)
 179                 goto skip_rds;
 180
 181         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
 182                 rds_ring = &recv_ctx->rds_rings[ring];
 183                 vfree(rds_ring->rx_buf_arr);
 184                 rds_ring->rx_buf_arr = NULL;
 185         }
 186         kfree(recv_ctx->rds_rings);
 187
 188 skip_rds:
 189         if (adapter->tx_ring == NULL)
 190                 return;
 191
 192         tx_ring = adapter->tx_ring;
 193         vfree(tx_ring->cmd_buf_arr);
 194         tx_ring->cmd_buf_arr = NULL;
 195         kfree(adapter->tx_ring);
 196         adapter->tx_ring = NULL;
 197 }
 198
 199 int qlcnic_alloc_sw_resources(struct qlcnic_adapter *adapter)
 200 {
 201         struct qlcnic_recv_context *recv_ctx;
 202         struct qlcnic_host_rds_ring *rds_ring;
 203         struct qlcnic_host_sds_ring *sds_ring;
 204         struct qlcnic_host_tx_ring *tx_ring;
 205         struct qlcnic_rx_buffer *rx_buf;
 206         int ring, i, size;
 207
 208         struct qlcnic_cmd_buffer *cmd_buf_arr;
 209         struct net_device *netdev = adapter->netdev;
 210
 211         size = sizeof(struct qlcnic_host_tx_ring);
 212         tx_ring = kzalloc(size, GFP_KERNEL);
 213         if (tx_ring == NULL) {
 214                 dev_err(&netdev->dev, "failed to allocate tx ring struct\n");
 215                 return -ENOMEM;
 216         }
 217         adapter->tx_ring = tx_ring;
 218
 219         tx_ring->num_desc = adapter->num_txd;
 220         tx_ring->txq = netdev_get_tx_queue(netdev, 0);
 221
 222         cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
 223         if (cmd_buf_arr == NULL) {
 224                 dev_err(&netdev->dev, "failed to allocate cmd buffer ring\n");
 225                 goto err_out;
 226         }
 227         tx_ring->cmd_buf_arr = cmd_buf_arr;
 228
 229         recv_ctx = &adapter->recv_ctx;
 230
 231         size = adapter->max_rds_rings * sizeof(struct qlcnic_host_rds_ring);
 232         rds_ring = kzalloc(size, GFP_KERNEL);
 233         if (rds_ring == NULL) {
 234                 dev_err(&netdev->dev, "failed to allocate rds ring struct\n");
 235                 goto err_out;
 236         }
 237         recv_ctx->rds_rings = rds_ring;
 238
 239         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
 240                 rds_ring = &recv_ctx->rds_rings[ring];
 241                 switch (ring) {
 242                 case RCV_RING_NORMAL:
 243                         rds_ring->num_desc = adapter->num_rxd;
 244                         rds_ring->dma_size = QLCNIC_P3P_RX_BUF_MAX_LEN;
 245                         rds_ring->skb_size = rds_ring->dma_size + NET_IP_ALIGN;
 246                         break;
 247
 248                 case RCV_RING_JUMBO:
 249                         rds_ring->num_desc = adapter->num_jumbo_rxd;
 250                         rds_ring->dma_size =
 251                                 QLCNIC_P3P_RX_JUMBO_BUF_MAX_LEN;
 252
 253                         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
 254                                 rds_ring->dma_size += QLCNIC_LRO_BUFFER_EXTRA;
 255
 256                         rds_ring->skb_size =
 257                                 rds_ring->dma_size + NET_IP_ALIGN;
 258                         break;
 259                 }
 260                 rds_ring->rx_buf_arr = vzalloc(RCV_BUFF_RINGSIZE(rds_ring));
 261                 if (rds_ring->rx_buf_arr == NULL) {
 262                         dev_err(&netdev->dev, "Failed to allocate "
 263                                 "rx buffer ring %d\n", ring);
 264                         goto err_out;
 265                 }
 266                 INIT_LIST_HEAD(&rds_ring->free_list);
 267                 /*
 268                  * Now go through all of them, set reference handles
 269                  * and put them in the queues.
 270                  */
 271                 rx_buf = rds_ring->rx_buf_arr;
 272                 for (i = 0; i < rds_ring->num_desc; i++) {
 273                         list_add_tail(&rx_buf->list,
 274                                         &rds_ring->free_list);
 275                         rx_buf->ref_handle = i;
 276                         rx_buf++;
 277                 }
 278                 spin_lock_init(&rds_ring->lock);
 279         }
 280
 281         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 282                 sds_ring = &recv_ctx->sds_rings[ring];
 283                 sds_ring->irq = adapter->msix_entries[ring].vector;
 284                 sds_ring->adapter = adapter;
 285                 sds_ring->num_desc = adapter->num_rxd;
 286
 287                 for (i = 0; i < NUM_RCV_DESC_RINGS; i++)
 288                         INIT_LIST_HEAD(&sds_ring->free_list[i]);
 289         }
 290
 291         return 0;
 292
 293 err_out:
 294         qlcnic_free_sw_resources(adapter);
 295         return -ENOMEM;
 296 }
 297
 298 /*
 299  * Utility to translate from internal Phantom CRB address
 300  * to external PCI CRB address.
 301  */
 302 static u32 qlcnic_decode_crb_addr(u32 addr)
 303 {
 304         int i;
 305         u32 base_addr, offset, pci_base;
 306
 307         crb_addr_transform_setup();
 308
 309         pci_base = QLCNIC_ADDR_ERROR;
 310         base_addr = addr & 0xfff00000;
 311         offset = addr & 0x000fffff;
 312
 313         for (i = 0; i < QLCNIC_MAX_CRB_XFORM; i++) {
 314                 if (crb_addr_xform[i] == base_addr) {
 315                         pci_base = i << 20;
 316                         break;
 317                 }
 318         }
 319         if (pci_base == QLCNIC_ADDR_ERROR)
 320                 return pci_base;
 321         else
 322                 return pci_base + offset;
 323 }
 324
 325 #define QLCNIC_MAX_ROM_WAIT_USEC        100
 326
 327 static int qlcnic_wait_rom_done(struct qlcnic_adapter *adapter)
 328 {
 329         long timeout = 0;
 330         long done = 0;
 331
 332         cond_resched();
 333
 334         while (done == 0) {
 335                 done = QLCRD32(adapter, QLCNIC_ROMUSB_GLB_STATUS);
 336                 done &= 2;
 337                 if (++timeout >= QLCNIC_MAX_ROM_WAIT_USEC) {
 338                         dev_err(&adapter->pdev->dev,
 339                                 "Timeout reached  waiting for rom done");
 340                         return -EIO;
 341                 }
 342                 udelay(1);
 343         }
 344         return 0;
 345 }
 346
 347 static int do_rom_fast_read(struct qlcnic_adapter *adapter,
 348                             int addr, int *valp)
 349 {
 350         QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ADDRESS, addr);
 351         QLCWR32(adapter, QLCNIC_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
 352         QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ABYTE_CNT, 3);
 353         QLCWR32(adapter, QLCNIC_ROMUSB_ROM_INSTR_OPCODE, 0xb);
 354         if (qlcnic_wait_rom_done(adapter)) {
 355                 dev_err(&adapter->pdev->dev, "Error waiting for rom done\n");
 356                 return -EIO;
 357         }
 358         /* reset abyte_cnt and dummy_byte_cnt */
 359         QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ABYTE_CNT, 0);
 360         udelay(10);
 361         QLCWR32(adapter, QLCNIC_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
 362
 363         *valp = QLCRD32(adapter, QLCNIC_ROMUSB_ROM_RDATA);
 364         return 0;
 365 }
 366
 367 static int do_rom_fast_read_words(struct qlcnic_adapter *adapter, int addr,
 368                                   u8 *bytes, size_t size)
 369 {
 370         int addridx;
 371         int ret = 0;
 372
 373         for (addridx = addr; addridx < (addr + size); addridx += 4) {
 374                 int v;
 375                 ret = do_rom_fast_read(adapter, addridx, &v);
 376                 if (ret != 0)
 377                         break;
 378                 *(__le32 *)bytes = cpu_to_le32(v);
 379                 bytes += 4;
 380         }
 381
 382         return ret;
 383 }
 384
 385 int
 386 qlcnic_rom_fast_read_words(struct qlcnic_adapter *adapter, int addr,
 387                                 u8 *bytes, size_t size)
 388 {
 389         int ret;
 390
 391         ret = qlcnic_rom_lock(adapter);
 392         if (ret < 0)
 393                 return ret;
 394
 395         ret = do_rom_fast_read_words(adapter, addr, bytes, size);
 396
 397         qlcnic_rom_unlock(adapter);
 398         return ret;
 399 }
 400
 401 int qlcnic_rom_fast_read(struct qlcnic_adapter *adapter, int addr, int *valp)
 402 {
 403         int ret;
 404
 405         if (qlcnic_rom_lock(adapter) != 0)
 406                 return -EIO;
 407
 408         ret = do_rom_fast_read(adapter, addr, valp);
 409         qlcnic_rom_unlock(adapter);
 410         return ret;
 411 }
 412
 413 int qlcnic_pinit_from_rom(struct qlcnic_adapter *adapter)
 414 {
 415         int addr, val;
 416         int i, n, init_delay;
 417         struct crb_addr_pair *buf;
 418         unsigned offset;
 419         u32 off;
 420         struct pci_dev *pdev = adapter->pdev;
 421
 422         QLCWR32(adapter, CRB_CMDPEG_STATE, 0);
 423         QLCWR32(adapter, CRB_RCVPEG_STATE, 0);
 424
 425         qlcnic_rom_lock(adapter);
 426         QLCWR32(adapter, QLCNIC_ROMUSB_GLB_SW_RESET, 0xfeffffff);
 427         qlcnic_rom_unlock(adapter);
 428
 429         /* Init HW CRB block */
 430         if (qlcnic_rom_fast_read(adapter, 0, &n) != 0 || (n != 0xcafecafe) ||
 431                         qlcnic_rom_fast_read(adapter, 4, &n) != 0) {
 432                 dev_err(&pdev->dev, "ERROR Reading crb_init area: val:%x\n", n);
 433                 return -EIO;
 434         }
 435         offset = n & 0xffffU;
 436         n = (n >> 16) & 0xffffU;
 437
 438         if (n >= 1024) {
 439                 dev_err(&pdev->dev, "QLOGIC card flash not initialized.\n");
 440                 return -EIO;
 441         }
 442
 443         buf = kcalloc(n, sizeof(struct crb_addr_pair), GFP_KERNEL);
 444         if (buf == NULL) {
 445                 dev_err(&pdev->dev, "Unable to calloc memory for rom read.\n");
 446                 return -ENOMEM;
 447         }
 448
 449         for (i = 0; i < n; i++) {
 450                 if (qlcnic_rom_fast_read(adapter, 8*i + 4*offset, &val) != 0 ||
 451                 qlcnic_rom_fast_read(adapter, 8*i + 4*offset + 4, &addr) != 0) {
 452                         kfree(buf);
 453                         return -EIO;
 454                 }
 455
 456                 buf[i].addr = addr;
 457                 buf[i].data = val;
 458         }
 459
 460         for (i = 0; i < n; i++) {
 461
 462                 off = qlcnic_decode_crb_addr(buf[i].addr);
 463                 if (off == QLCNIC_ADDR_ERROR) {
 464                         dev_err(&pdev->dev, "CRB init value out of range %x\n",
 465                                         buf[i].addr);
 466                         continue;
 467                 }
 468                 off += QLCNIC_PCI_CRBSPACE;
 469
 470                 if (off & 1)
 471                         continue;
 472
 473                 /* skipping cold reboot MAGIC */
 474                 if (off == QLCNIC_CAM_RAM(0x1fc))
 475                         continue;
 476                 if (off == (QLCNIC_CRB_I2C0 + 0x1c))
 477                         continue;
 478                 if (off == (ROMUSB_GLB + 0xbc)) /* do not reset PCI */
 479                         continue;
 480                 if (off == (ROMUSB_GLB + 0xa8))
 481                         continue;
 482                 if (off == (ROMUSB_GLB + 0xc8)) /* core clock */
 483                         continue;
 484                 if (off == (ROMUSB_GLB + 0x24)) /* MN clock */
 485                         continue;
 486                 if (off == (ROMUSB_GLB + 0x1c)) /* MS clock */
 487                         continue;
 488                 if ((off & 0x0ff00000) == QLCNIC_CRB_DDR_NET)
 489                         continue;
 490                 /* skip the function enable register */
 491                 if (off == QLCNIC_PCIE_REG(PCIE_SETUP_FUNCTION))
 492                         continue;
 493                 if (off == QLCNIC_PCIE_REG(PCIE_SETUP_FUNCTION2))
 494                         continue;
 495                 if ((off & 0x0ff00000) == QLCNIC_CRB_SMB)
 496                         continue;
 497
 498                 init_delay = 1;
 499                 /* After writing this register, HW needs time for CRB */
 500                 /* to quiet down (else crb_window returns 0xffffffff) */
 501                 if (off == QLCNIC_ROMUSB_GLB_SW_RESET)
 502                         init_delay = 1000;
 503
 504                 QLCWR32(adapter, off, buf[i].data);
 505
 506                 msleep(init_delay);
 507         }
 508         kfree(buf);
 509
 510         /* Initialize protocol process engine */
 511         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_D + 0xec, 0x1e);
 512         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_D + 0x4c, 8);
 513         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_I + 0x4c, 8);
 514         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x8, 0);
 515         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0xc, 0);
 516         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x8, 0);
 517         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_1 + 0xc, 0);
 518         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x8, 0);
 519         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_2 + 0xc, 0);
 520         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x8, 0);
 521         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_3 + 0xc, 0);
 522         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x8, 0);
 523         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_4 + 0xc, 0);
 524         msleep(1);
 525         QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS1, 0);
 526         QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS2, 0);
 527         return 0;
 528 }
 529
 530 static int qlcnic_cmd_peg_ready(struct qlcnic_adapter *adapter)
 531 {
 532         u32 val;
 533         int retries = QLCNIC_CMDPEG_CHECK_RETRY_COUNT;
 534
 535         do {
 536                 val = QLCRD32(adapter, CRB_CMDPEG_STATE);
 537
 538                 switch (val) {
 539                 case PHAN_INITIALIZE_COMPLETE:
 540                 case PHAN_INITIALIZE_ACK:
 541                         return 0;
 542                 case PHAN_INITIALIZE_FAILED:
 543                         goto out_err;
 544                 default:
 545                         break;
 546                 }
 547
 548                 msleep(QLCNIC_CMDPEG_CHECK_DELAY);
 549
 550         } while (--retries);
 551
 552         QLCWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
 553
 554 out_err:
 555         dev_err(&adapter->pdev->dev, "Command Peg initialization not "
 556                       "complete, state: 0x%x.\n", val);
 557         return -EIO;
 558 }
 559
 560 static int
 561 qlcnic_receive_peg_ready(struct qlcnic_adapter *adapter)
 562 {
 563         u32 val;
 564         int retries = QLCNIC_RCVPEG_CHECK_RETRY_COUNT;
 565
 566         do {
 567                 val = QLCRD32(adapter, CRB_RCVPEG_STATE);
 568
 569                 if (val == PHAN_PEG_RCV_INITIALIZED)
 570                         return 0;
 571
 572                 msleep(QLCNIC_RCVPEG_CHECK_DELAY);
 573
 574         } while (--retries);
 575
 576         if (!retries) {
 577                 dev_err(&adapter->pdev->dev, "Receive Peg initialization not "
 578                               "complete, state: 0x%x.\n", val);
 579                 return -EIO;
 580         }
 581
 582         return 0;
 583 }
 584
 585 int
 586 qlcnic_check_fw_status(struct qlcnic_adapter *adapter)
 587 {
 588         int err;
 589
 590         err = qlcnic_cmd_peg_ready(adapter);
 591         if (err)
 592                 return err;
 593
 594         err = qlcnic_receive_peg_ready(adapter);
 595         if (err)
 596                 return err;
 597
 598         QLCWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_ACK);
 599
 600         return err;
 601 }
 602
 603 int
 604 qlcnic_setup_idc_param(struct qlcnic_adapter *adapter) {
 605
 606         int timeo;
 607         u32 val;
 608
 609         val = QLCRD32(adapter, QLCNIC_CRB_DEV_PARTITION_INFO);
 610         val = QLC_DEV_GET_DRV(val, adapter->portnum);
 611         if ((val & 0x3) != QLCNIC_TYPE_NIC) {
 612                 dev_err(&adapter->pdev->dev,
 613                         "Not an Ethernet NIC func=%u\n", val);
 614                 return -EIO;
 615         }
 616         adapter->physical_port = (val >> 2);
 617         if (qlcnic_rom_fast_read(adapter, QLCNIC_ROM_DEV_INIT_TIMEOUT, &timeo))
 618                 timeo = QLCNIC_INIT_TIMEOUT_SECS;
 619
 620         adapter->dev_init_timeo = timeo;
 621
 622         if (qlcnic_rom_fast_read(adapter, QLCNIC_ROM_DRV_RESET_TIMEOUT, &timeo))
 623                 timeo = QLCNIC_RESET_TIMEOUT_SECS;
 624
 625         adapter->reset_ack_timeo = timeo;
 626
 627         return 0;
 628 }
 629
 630 static int qlcnic_get_flt_entry(struct qlcnic_adapter *adapter, u8 region,
 631                                 struct qlcnic_flt_entry *region_entry)
 632 {
 633         struct qlcnic_flt_header flt_hdr;
 634         struct qlcnic_flt_entry *flt_entry;
 635         int i = 0, ret;
 636         u32 entry_size;
 637
 638         memset(region_entry, 0, sizeof(struct qlcnic_flt_entry));
 639         ret = qlcnic_rom_fast_read_words(adapter, QLCNIC_FLT_LOCATION,
 640                                          (u8 *)&flt_hdr,
 641                                          sizeof(struct qlcnic_flt_header));
 642         if (ret) {
 643                 dev_warn(&adapter->pdev->dev,
 644                          "error reading flash layout header\n");
 645                 return -EIO;
 646         }
 647
 648         entry_size = flt_hdr.len - sizeof(struct qlcnic_flt_header);
 649         flt_entry = (struct qlcnic_flt_entry *)vzalloc(entry_size);
 650         if (flt_entry == NULL) {
 651                 dev_warn(&adapter->pdev->dev, "error allocating memory\n");
 652                 return -EIO;
 653         }
 654
 655         ret = qlcnic_rom_fast_read_words(adapter, QLCNIC_FLT_LOCATION +
 656                                          sizeof(struct qlcnic_flt_header),
 657                                          (u8 *)flt_entry, entry_size);
 658         if (ret) {
 659                 dev_warn(&adapter->pdev->dev,
 660                          "error reading flash layout entries\n");
 661                 goto err_out;
 662         }
 663
 664         while (i < (entry_size/sizeof(struct qlcnic_flt_entry))) {
 665                 if (flt_entry[i].region == region)
 666                         break;
 667                 i++;
 668         }
 669         if (i >= (entry_size/sizeof(struct qlcnic_flt_entry))) {
 670                 dev_warn(&adapter->pdev->dev,
 671                          "region=%x not found in %d regions\n", region, i);
 672                 ret = -EIO;
 673                 goto err_out;
 674         }
 675         memcpy(region_entry, &flt_entry[i], sizeof(struct qlcnic_flt_entry));
 676
 677 err_out:
 678         vfree(flt_entry);
 679         return ret;
 680 }
 681
 682 int
 683 qlcnic_check_flash_fw_ver(struct qlcnic_adapter *adapter)
 684 {
 685         struct qlcnic_flt_entry fw_entry;
 686         u32 ver = -1, min_ver;
 687         int ret;
 688
 689         ret = qlcnic_get_flt_entry(adapter, QLCNIC_FW_IMAGE_REGION, &fw_entry);
 690         if (!ret)
 691                 /* 0-4:-signature,  4-8:-fw version */
 692                 qlcnic_rom_fast_read(adapter, fw_entry.start_addr + 4,
 693                                      (int *)&ver);
 694         else
 695                 qlcnic_rom_fast_read(adapter, QLCNIC_FW_VERSION_OFFSET,
 696                                      (int *)&ver);
 697
 698         ver = QLCNIC_DECODE_VERSION(ver);
 699         min_ver = QLCNIC_MIN_FW_VERSION;
 700
 701         if (ver < min_ver) {
 702                 dev_err(&adapter->pdev->dev,
 703                         "firmware version %d.%d.%d unsupported."
 704                         "Min supported version %d.%d.%d\n",
 705                         _major(ver), _minor(ver), _build(ver),
 706                         _major(min_ver), _minor(min_ver), _build(min_ver));
 707                 return -EINVAL;
 708         }
 709
 710         return 0;
 711 }
 712
 713 static int
 714 qlcnic_has_mn(struct qlcnic_adapter *adapter)
 715 {
 716         u32 capability;
 717         capability = 0;
 718
 719         capability = QLCRD32(adapter, QLCNIC_PEG_TUNE_CAPABILITY);
 720         if (capability & QLCNIC_PEG_TUNE_MN_PRESENT)
 721                 return 1;
 722
 723         return 0;
 724 }
 725
 726 static
 727 struct uni_table_desc *qlcnic_get_table_desc(const u8 *unirom, int section)
 728 {
 729         u32 i;
 730         struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
 731         __le32 entries = cpu_to_le32(directory->num_entries);
 732
 733         for (i = 0; i < entries; i++) {
 734
 735                 __le32 offs = cpu_to_le32(directory->findex) +
 736                                 (i * cpu_to_le32(directory->entry_size));
 737                 __le32 tab_type = cpu_to_le32(*((u32 *)&unirom[offs] + 8));
 738
 739                 if (tab_type == section)
 740                         return (struct uni_table_desc *) &unirom[offs];
 741         }
 742
 743         return NULL;
 744 }
 745
 746 #define FILEHEADER_SIZE (14 * 4)
 747
 748 static int
 749 qlcnic_validate_header(struct qlcnic_adapter *adapter)
 750 {
 751         const u8 *unirom = adapter->fw->data;
 752         struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
 753         __le32 fw_file_size = adapter->fw->size;
 754         __le32 entries;
 755         __le32 entry_size;
 756         __le32 tab_size;
 757
 758         if (fw_file_size < FILEHEADER_SIZE)
 759                 return -EINVAL;
 760
 761         entries = cpu_to_le32(directory->num_entries);
 762         entry_size = cpu_to_le32(directory->entry_size);
 763         tab_size = cpu_to_le32(directory->findex) + (entries * entry_size);
 764
 765         if (fw_file_size < tab_size)
 766                 return -EINVAL;
 767
 768         return 0;
 769 }
 770
 771 static int
 772 qlcnic_validate_bootld(struct qlcnic_adapter *adapter)
 773 {
 774         struct uni_table_desc *tab_desc;
 775         struct uni_data_desc *descr;
 776         const u8 *unirom = adapter->fw->data;
 777         int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
 778                                 QLCNIC_UNI_BOOTLD_IDX_OFF));
 779         __le32 offs;
 780         __le32 tab_size;
 781         __le32 data_size;
 782
 783         tab_desc = qlcnic_get_table_desc(unirom, QLCNIC_UNI_DIR_SECT_BOOTLD);
 784
 785         if (!tab_desc)
 786                 return -EINVAL;
 787
 788         tab_size = cpu_to_le32(tab_desc->findex) +
 789                         (cpu_to_le32(tab_desc->entry_size) * (idx + 1));
 790
 791         if (adapter->fw->size < tab_size)
 792                 return -EINVAL;
 793
 794         offs = cpu_to_le32(tab_desc->findex) +
 795                 (cpu_to_le32(tab_desc->entry_size) * (idx));
 796         descr = (struct uni_data_desc *)&unirom[offs];
 797
 798         data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size);
 799
 800         if (adapter->fw->size < data_size)
 801                 return -EINVAL;
 802
 803         return 0;
 804 }
 805
 806 static int
 807 qlcnic_validate_fw(struct qlcnic_adapter *adapter)
 808 {
 809         struct uni_table_desc *tab_desc;
 810         struct uni_data_desc *descr;
 811         const u8 *unirom = adapter->fw->data;
 812         int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
 813                                 QLCNIC_UNI_FIRMWARE_IDX_OFF));
 814         __le32 offs;
 815         __le32 tab_size;
 816         __le32 data_size;
 817
 818         tab_desc = qlcnic_get_table_desc(unirom, QLCNIC_UNI_DIR_SECT_FW);
 819
 820         if (!tab_desc)
 821                 return -EINVAL;
 822
 823         tab_size = cpu_to_le32(tab_desc->findex) +
 824                         (cpu_to_le32(tab_desc->entry_size) * (idx + 1));
 825
 826         if (adapter->fw->size < tab_size)
 827                 return -EINVAL;
 828
 829         offs = cpu_to_le32(tab_desc->findex) +
 830                 (cpu_to_le32(tab_desc->entry_size) * (idx));
 831         descr = (struct uni_data_desc *)&unirom[offs];
 832         data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size);
 833
 834         if (adapter->fw->size < data_size)
 835                 return -EINVAL;
 836
 837         return 0;
 838 }
 839
 840 static int
 841 qlcnic_validate_product_offs(struct qlcnic_adapter *adapter)
 842 {
 843         struct uni_table_desc *ptab_descr;
 844         const u8 *unirom = adapter->fw->data;
 845         int mn_present = qlcnic_has_mn(adapter);
 846         __le32 entries;
 847         __le32 entry_size;
 848         __le32 tab_size;
 849         u32 i;
 850
 851         ptab_descr = qlcnic_get_table_desc(unirom,
 852                                 QLCNIC_UNI_DIR_SECT_PRODUCT_TBL);
 853         if (!ptab_descr)
 854                 return -EINVAL;
 855
 856         entries = cpu_to_le32(ptab_descr->num_entries);
 857         entry_size = cpu_to_le32(ptab_descr->entry_size);
 858         tab_size = cpu_to_le32(ptab_descr->findex) + (entries * entry_size);
 859
 860         if (adapter->fw->size < tab_size)
 861                 return -EINVAL;
 862
 863 nomn:
 864         for (i = 0; i < entries; i++) {
 865
 866                 __le32 flags, file_chiprev, offs;
 867                 u8 chiprev = adapter->ahw.revision_id;
 868                 u32 flagbit;
 869
 870                 offs = cpu_to_le32(ptab_descr->findex) +
 871                                 (i * cpu_to_le32(ptab_descr->entry_size));
 872                 flags = cpu_to_le32(*((int *)&unirom[offs] +
 873                                                 QLCNIC_UNI_FLAGS_OFF));
 874                 file_chiprev = cpu_to_le32(*((int *)&unirom[offs] +
 875                                                 QLCNIC_UNI_CHIP_REV_OFF));
 876
 877                 flagbit = mn_present ? 1 : 2;
 878
 879                 if ((chiprev == file_chiprev) &&
 880                                         ((1ULL << flagbit) & flags)) {
 881                         adapter->file_prd_off = offs;
 882                         return 0;
 883                 }
 884         }
 885         if (mn_present) {
 886                 mn_present = 0;
 887                 goto nomn;
 888         }
 889         return -EINVAL;
 890 }
 891
 892 static int
 893 qlcnic_validate_unified_romimage(struct qlcnic_adapter *adapter)
 894 {
 895         if (qlcnic_validate_header(adapter)) {
 896                 dev_err(&adapter->pdev->dev,
 897                                 "unified image: header validation failed\n");
 898                 return -EINVAL;
 899         }
 900
 901         if (qlcnic_validate_product_offs(adapter)) {
 902                 dev_err(&adapter->pdev->dev,
 903                                 "unified image: product validation failed\n");
 904                 return -EINVAL;
 905         }
 906
 907         if (qlcnic_validate_bootld(adapter)) {
 908                 dev_err(&adapter->pdev->dev,
 909                                 "unified image: bootld validation failed\n");
 910                 return -EINVAL;
 911         }
 912
 913         if (qlcnic_validate_fw(adapter)) {
 914                 dev_err(&adapter->pdev->dev,
 915                                 "unified image: firmware validation failed\n");
 916                 return -EINVAL;
 917         }
 918
 919         return 0;
 920 }
 921
 922 static
 923 struct uni_data_desc *qlcnic_get_data_desc(struct qlcnic_adapter *adapter,
 924                         u32 section, u32 idx_offset)
 925 {
 926         const u8 *unirom = adapter->fw->data;
 927         int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
 928                                                                 idx_offset));
 929         struct uni_table_desc *tab_desc;
 930         __le32 offs;
 931
 932         tab_desc = qlcnic_get_table_desc(unirom, section);
 933
 934         if (tab_desc == NULL)
 935                 return NULL;
 936
 937         offs = cpu_to_le32(tab_desc->findex) +
 938                         (cpu_to_le32(tab_desc->entry_size) * idx);
 939
 940         return (struct uni_data_desc *)&unirom[offs];
 941 }
 942
 943 static u8 *
 944 qlcnic_get_bootld_offs(struct qlcnic_adapter *adapter)
 945 {
 946         u32 offs = QLCNIC_BOOTLD_START;
 947
 948         if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
 949                 offs = cpu_to_le32((qlcnic_get_data_desc(adapter,
 950                                         QLCNIC_UNI_DIR_SECT_BOOTLD,
 951                                         QLCNIC_UNI_BOOTLD_IDX_OFF))->findex);
 952
 953         return (u8 *)&adapter->fw->data[offs];
 954 }
 955
 956 static u8 *
 957 qlcnic_get_fw_offs(struct qlcnic_adapter *adapter)
 958 {
 959         u32 offs = QLCNIC_IMAGE_START;
 960
 961         if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
 962                 offs = cpu_to_le32((qlcnic_get_data_desc(adapter,
 963                                         QLCNIC_UNI_DIR_SECT_FW,
 964                                         QLCNIC_UNI_FIRMWARE_IDX_OFF))->findex);
 965
 966         return (u8 *)&adapter->fw->data[offs];
 967 }
 968
 969 static __le32
 970 qlcnic_get_fw_size(struct qlcnic_adapter *adapter)
 971 {
 972         if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
 973                 return cpu_to_le32((qlcnic_get_data_desc(adapter,
 974                                         QLCNIC_UNI_DIR_SECT_FW,
 975                                         QLCNIC_UNI_FIRMWARE_IDX_OFF))->size);
 976         else
 977                 return cpu_to_le32(
 978                         *(u32 *)&adapter->fw->data[QLCNIC_FW_SIZE_OFFSET]);
 979 }
 980
 981 static __le32
 982 qlcnic_get_fw_version(struct qlcnic_adapter *adapter)
 983 {
 984         struct uni_data_desc *fw_data_desc;
 985         const struct firmware *fw = adapter->fw;
 986         __le32 major, minor, sub;
 987         const u8 *ver_str;
 988         int i, ret;
 989
 990         if (adapter->fw_type != QLCNIC_UNIFIED_ROMIMAGE)
 991                 return cpu_to_le32(*(u32 *)&fw->data[QLCNIC_FW_VERSION_OFFSET]);
 992
 993         fw_data_desc = qlcnic_get_data_desc(adapter, QLCNIC_UNI_DIR_SECT_FW,
 994                         QLCNIC_UNI_FIRMWARE_IDX_OFF);
 995         ver_str = fw->data + cpu_to_le32(fw_data_desc->findex) +
 996                 cpu_to_le32(fw_data_desc->size) - 17;
 997
 998         for (i = 0; i < 12; i++) {
 999                 if (!strncmp(&ver_str[i], "REV=", 4)) {
1000                         ret = sscanf(&ver_str[i+4], "%u.%u.%u ",
1001                                         &major, &minor, &sub);
1002                         if (ret != 3)
1003                                 return 0;
1004                         else
1005                                 return major + (minor << 8) + (sub << 16);
1006                 }
1007         }
1008
1009         return 0;
1010 }
1011
1012 static __le32
1013 qlcnic_get_bios_version(struct qlcnic_adapter *adapter)
1014 {
1015         const struct firmware *fw = adapter->fw;
1016         __le32 bios_ver, prd_off = adapter->file_prd_off;
1017
1018         if (adapter->fw_type != QLCNIC_UNIFIED_ROMIMAGE)
1019                 return cpu_to_le32(
1020                         *(u32 *)&fw->data[QLCNIC_BIOS_VERSION_OFFSET]);
1021
1022         bios_ver = cpu_to_le32(*((u32 *) (&fw->data[prd_off])
1023                                 + QLCNIC_UNI_BIOS_VERSION_OFF));
1024
1025         return (bios_ver << 16) + ((bios_ver >> 8) & 0xff00) + (bios_ver >> 24);
1026 }
1027
1028 static void qlcnic_rom_lock_recovery(struct qlcnic_adapter *adapter)
1029 {
1030         if (qlcnic_pcie_sem_lock(adapter, 2, QLCNIC_ROM_LOCK_ID))
1031                 dev_info(&adapter->pdev->dev, "Resetting rom_lock\n");
1032
1033         qlcnic_pcie_sem_unlock(adapter, 2);
1034 }
1035
1036 static int
1037 qlcnic_check_fw_hearbeat(struct qlcnic_adapter *adapter)
1038 {
1039         u32 heartbeat, ret = -EIO;
1040         int retries = QLCNIC_HEARTBEAT_CHECK_RETRY_COUNT;
1041
1042         adapter->heartbeat = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
1043
1044         do {
1045                 msleep(QLCNIC_HEARTBEAT_PERIOD_MSECS);
1046                 heartbeat = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
1047                 if (heartbeat != adapter->heartbeat) {
1048                         ret = QLCNIC_RCODE_SUCCESS;
1049                         break;
1050                 }
1051         } while (--retries);
1052
1053         return ret;
1054 }
1055
1056 int
1057 qlcnic_need_fw_reset(struct qlcnic_adapter *adapter)
1058 {
1059         if (qlcnic_check_fw_hearbeat(adapter)) {
1060                 qlcnic_rom_lock_recovery(adapter);
1061                 return 1;
1062         }
1063
1064         if (adapter->need_fw_reset)
1065                 return 1;
1066
1067         if (adapter->fw)
1068                 return 1;
1069
1070         return 0;
1071 }
1072
1073 static const char *fw_name[] = {
1074         QLCNIC_UNIFIED_ROMIMAGE_NAME,
1075         QLCNIC_FLASH_ROMIMAGE_NAME,
1076 };
1077
1078 int
1079 qlcnic_load_firmware(struct qlcnic_adapter *adapter)
1080 {
1081         u64 *ptr64;
1082         u32 i, flashaddr, size;
1083         const struct firmware *fw = adapter->fw;
1084         struct pci_dev *pdev = adapter->pdev;
1085
1086         dev_info(&pdev->dev, "loading firmware from %s\n",
1087                         fw_name[adapter->fw_type]);
1088
1089         if (fw) {
1090                 __le64 data;
1091
1092                 size = (QLCNIC_IMAGE_START - QLCNIC_BOOTLD_START) / 8;
1093
1094                 ptr64 = (u64 *)qlcnic_get_bootld_offs(adapter);
1095                 flashaddr = QLCNIC_BOOTLD_START;
1096
1097                 for (i = 0; i < size; i++) {
1098                         data = cpu_to_le64(ptr64[i]);
1099
1100                         if (qlcnic_pci_mem_write_2M(adapter, flashaddr, data))
1101                                 return -EIO;
1102
1103                         flashaddr += 8;
1104                 }
1105
1106                 size = (__force u32)qlcnic_get_fw_size(adapter) / 8;
1107
1108                 ptr64 = (u64 *)qlcnic_get_fw_offs(adapter);
1109                 flashaddr = QLCNIC_IMAGE_START;
1110
1111                 for (i = 0; i < size; i++) {
1112                         data = cpu_to_le64(ptr64[i]);
1113
1114                         if (qlcnic_pci_mem_write_2M(adapter,
1115                                                 flashaddr, data))
1116                                 return -EIO;
1117
1118                         flashaddr += 8;
1119                 }
1120
1121                 size = (__force u32)qlcnic_get_fw_size(adapter) % 8;
1122                 if (size) {
1123                         data = cpu_to_le64(ptr64[i]);
1124
1125                         if (qlcnic_pci_mem_write_2M(adapter,
1126                                                 flashaddr, data))
1127                                 return -EIO;
1128                 }
1129
1130         } else {
1131                 u64 data;
1132                 u32 hi, lo;
1133
1134                 size = (QLCNIC_IMAGE_START - QLCNIC_BOOTLD_START) / 8;
1135                 flashaddr = QLCNIC_BOOTLD_START;
1136
1137                 for (i = 0; i < size; i++) {
1138                         if (qlcnic_rom_fast_read(adapter,
1139                                         flashaddr, (int *)&lo) != 0)
1140                                 return -EIO;
1141                         if (qlcnic_rom_fast_read(adapter,
1142                                         flashaddr + 4, (int *)&hi) != 0)
1143                                 return -EIO;
1144
1145                         data = (((u64)hi << 32) | lo);
1146
1147                         if (qlcnic_pci_mem_write_2M(adapter,
1148                                                 flashaddr, data))
1149                                 return -EIO;
1150
1151                         flashaddr += 8;
1152                 }
1153         }
1154         msleep(1);
1155
1156         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x18, 0x1020);
1157         QLCWR32(adapter, QLCNIC_ROMUSB_GLB_SW_RESET, 0x80001e);
1158         return 0;
1159 }
1160
1161 static int
1162 qlcnic_validate_firmware(struct qlcnic_adapter *adapter)
1163 {
1164         __le32 val;
1165         u32 ver, bios, min_size;
1166         struct pci_dev *pdev = adapter->pdev;
1167         const struct firmware *fw = adapter->fw;
1168         u8 fw_type = adapter->fw_type;
1169
1170         if (fw_type == QLCNIC_UNIFIED_ROMIMAGE) {
1171                 if (qlcnic_validate_unified_romimage(adapter))
1172                         return -EINVAL;
1173
1174                 min_size = QLCNIC_UNI_FW_MIN_SIZE;
1175         } else {
1176                 val = cpu_to_le32(*(u32 *)&fw->data[QLCNIC_FW_MAGIC_OFFSET]);
1177                 if ((__force u32)val != QLCNIC_BDINFO_MAGIC)
1178                         return -EINVAL;
1179
1180                 min_size = QLCNIC_FW_MIN_SIZE;
1181         }
1182
1183         if (fw->size < min_size)
1184                 return -EINVAL;
1185
1186         val = qlcnic_get_fw_version(adapter);
1187         ver = QLCNIC_DECODE_VERSION(val);
1188
1189         if (ver < QLCNIC_MIN_FW_VERSION) {
1190                 dev_err(&pdev->dev,
1191                                 "%s: firmware version %d.%d.%d unsupported\n",
1192                 fw_name[fw_type], _major(ver), _minor(ver), _build(ver));
1193                 return -EINVAL;
1194         }
1195
1196         val = qlcnic_get_bios_version(adapter);
1197         qlcnic_rom_fast_read(adapter, QLCNIC_BIOS_VERSION_OFFSET, (int *)&bios);
1198         if ((__force u32)val != bios) {
1199                 dev_err(&pdev->dev, "%s: firmware bios is incompatible\n",
1200                                 fw_name[fw_type]);
1201                 return -EINVAL;
1202         }
1203
1204         QLCWR32(adapter, QLCNIC_CAM_RAM(0x1fc), QLCNIC_BDINFO_MAGIC);
1205         return 0;
1206 }
1207
1208 static void
1209 qlcnic_get_next_fwtype(struct qlcnic_adapter *adapter)
1210 {
1211         u8 fw_type;
1212
1213         switch (adapter->fw_type) {
1214         case QLCNIC_UNKNOWN_ROMIMAGE:
1215                 fw_type = QLCNIC_UNIFIED_ROMIMAGE;
1216                 break;
1217
1218         case QLCNIC_UNIFIED_ROMIMAGE:
1219         default:
1220                 fw_type = QLCNIC_FLASH_ROMIMAGE;
1221                 break;
1222         }
1223
1224         adapter->fw_type = fw_type;
1225 }
1226
1227
1228
1229 void qlcnic_request_firmware(struct qlcnic_adapter *adapter)
1230 {
1231         struct pci_dev *pdev = adapter->pdev;
1232         int rc;
1233
1234         adapter->fw_type = QLCNIC_UNKNOWN_ROMIMAGE;
1235
1236 next:
1237         qlcnic_get_next_fwtype(adapter);
1238
1239         if (adapter->fw_type == QLCNIC_FLASH_ROMIMAGE) {
1240                 adapter->fw = NULL;
1241         } else {
1242                 rc = request_firmware(&adapter->fw,
1243                                 fw_name[adapter->fw_type], &pdev->dev);
1244                 if (rc != 0)
1245                         goto next;
1246
1247                 rc = qlcnic_validate_firmware(adapter);
1248                 if (rc != 0) {
1249                         release_firmware(adapter->fw);
1250                         msleep(1);
1251                         goto next;
1252                 }
1253         }
1254 }
1255
1256
1257 void
1258 qlcnic_release_firmware(struct qlcnic_adapter *adapter)
1259 {
1260         if (adapter->fw)
1261                 release_firmware(adapter->fw);
1262         adapter->fw = NULL;
1263 }
1264
1265 static void
1266 qlcnic_handle_linkevent(struct qlcnic_adapter *adapter,
1267                                 struct qlcnic_fw_msg *msg)
1268 {
1269         u32 cable_OUI;
1270         u16 cable_len;
1271         u16 link_speed;
1272         u8  link_status, module, duplex, autoneg;
1273         struct net_device *netdev = adapter->netdev;
1274
1275         adapter->has_link_events = 1;
1276
1277         cable_OUI = msg->body[1] & 0xffffffff;
1278         cable_len = (msg->body[1] >> 32) & 0xffff;
1279         link_speed = (msg->body[1] >> 48) & 0xffff;
1280
1281         link_status = msg->body[2] & 0xff;
1282         duplex = (msg->body[2] >> 16) & 0xff;
1283         autoneg = (msg->body[2] >> 24) & 0xff;
1284
1285         module = (msg->body[2] >> 8) & 0xff;
1286         if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLE)
1287                 dev_info(&netdev->dev, "unsupported cable: OUI 0x%x, "
1288                                 "length %d\n", cable_OUI, cable_len);
1289         else if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLELEN)
1290                 dev_info(&netdev->dev, "unsupported cable length %d\n",
1291                                 cable_len);
1292
1293         qlcnic_advert_link_change(adapter, link_status);
1294
1295         if (duplex == LINKEVENT_FULL_DUPLEX)
1296                 adapter->link_duplex = DUPLEX_FULL;
1297         else
1298                 adapter->link_duplex = DUPLEX_HALF;
1299
1300         adapter->module_type = module;
1301         adapter->link_autoneg = autoneg;
1302         adapter->link_speed = link_speed;
1303 }
1304
1305 static void
1306 qlcnic_handle_fw_message(int desc_cnt, int index,
1307                 struct qlcnic_host_sds_ring *sds_ring)
1308 {
1309         struct qlcnic_fw_msg msg;
1310         struct status_desc *desc;
1311         int i = 0, opcode;
1312
1313         while (desc_cnt > 0 && i < 8) {
1314                 desc = &sds_ring->desc_head[index];
1315                 msg.words[i++] = le64_to_cpu(desc->status_desc_data[0]);
1316                 msg.words[i++] = le64_to_cpu(desc->status_desc_data[1]);
1317
1318                 index = get_next_index(index, sds_ring->num_desc);
1319                 desc_cnt--;
1320         }
1321
1322         opcode = qlcnic_get_nic_msg_opcode(msg.body[0]);
1323         switch (opcode) {
1324         case QLCNIC_C2H_OPCODE_GET_LINKEVENT_RESPONSE:
1325                 qlcnic_handle_linkevent(sds_ring->adapter, &msg);
1326                 break;
1327         default:
1328                 break;
1329         }
1330 }
1331
1332 static int
1333 qlcnic_alloc_rx_skb(struct qlcnic_adapter *adapter,
1334                 struct qlcnic_host_rds_ring *rds_ring,
1335                 struct qlcnic_rx_buffer *buffer)
1336 {
1337         struct sk_buff *skb;
1338         dma_addr_t dma;
1339         struct pci_dev *pdev = adapter->pdev;
1340
1341         skb = dev_alloc_skb(rds_ring->skb_size);
1342         if (!skb) {
1343                 adapter->stats.skb_alloc_failure++;
1344                 return -ENOMEM;
1345         }
1346
1347         skb_reserve(skb, NET_IP_ALIGN);
1348
1349         dma = pci_map_single(pdev, skb->data,
1350                         rds_ring->dma_size, PCI_DMA_FROMDEVICE);
1351
1352         if (pci_dma_mapping_error(pdev, dma)) {
1353                 adapter->stats.rx_dma_map_error++;
1354                 dev_kfree_skb_any(skb);
1355                 return -ENOMEM;
1356         }
1357
1358         buffer->skb = skb;
1359         buffer->dma = dma;
1360
1361         return 0;
1362 }
1363
1364 static struct sk_buff *qlcnic_process_rxbuf(struct qlcnic_adapter *adapter,
1365                 struct qlcnic_host_rds_ring *rds_ring, u16 index, u16 cksum)
1366 {
1367         struct qlcnic_rx_buffer *buffer;
1368         struct sk_buff *skb;
1369
1370         buffer = &rds_ring->rx_buf_arr[index];
1371
1372         if (unlikely(buffer->skb == NULL)) {
1373                 WARN_ON(1);
1374                 return NULL;
1375         }
1376
1377         pci_unmap_single(adapter->pdev, buffer->dma, rds_ring->dma_size,
1378                         PCI_DMA_FROMDEVICE);
1379
1380         skb = buffer->skb;
1381
1382         if (likely(adapter->rx_csum && (cksum == STATUS_CKSUM_OK ||
1383                                                 cksum == STATUS_CKSUM_LOOP))) {
1384                 adapter->stats.csummed++;
1385                 skb->ip_summed = CHECKSUM_UNNECESSARY;
1386         } else {
1387                 skb_checksum_none_assert(skb);
1388         }
1389
1390         skb->dev = adapter->netdev;
1391
1392         buffer->skb = NULL;
1393
1394         return skb;
1395 }
1396
1397 static int
1398 qlcnic_check_rx_tagging(struct qlcnic_adapter *adapter, struct sk_buff *skb,
1399                         u16 *vlan_tag)
1400 {
1401         struct ethhdr *eth_hdr;
1402
1403         if (!__vlan_get_tag(skb, vlan_tag)) {
1404                 eth_hdr = (struct ethhdr *) skb->data;
1405                 memmove(skb->data + VLAN_HLEN, eth_hdr, ETH_ALEN * 2);
1406                 skb_pull(skb, VLAN_HLEN);
1407         }
1408         if (!adapter->pvid)
1409                 return 0;
1410
1411         if (*vlan_tag == adapter->pvid) {
1412                 /* Outer vlan tag. Packet should follow non-vlan path */
1413                 *vlan_tag = 0xffff;
1414                 return 0;
1415         }
1416         if (adapter->flags & QLCNIC_TAGGING_ENABLED)
1417                 return 0;
1418
1419         return -EINVAL;
1420 }
1421
1422 static struct qlcnic_rx_buffer *
1423 qlcnic_process_rcv(struct qlcnic_adapter *adapter,
1424                 struct qlcnic_host_sds_ring *sds_ring,
1425                 int ring, u64 sts_data0)
1426 {
1427         struct net_device *netdev = adapter->netdev;
1428         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1429         struct qlcnic_rx_buffer *buffer;
1430         struct sk_buff *skb;
1431         struct qlcnic_host_rds_ring *rds_ring;
1432         int index, length, cksum, pkt_offset;
1433         u16 vid = 0xffff;
1434
1435         if (unlikely(ring >= adapter->max_rds_rings))
1436                 return NULL;
1437
1438         rds_ring = &recv_ctx->rds_rings[ring];
1439
1440         index = qlcnic_get_sts_refhandle(sts_data0);
1441         if (unlikely(index >= rds_ring->num_desc))
1442                 return NULL;
1443
1444         buffer = &rds_ring->rx_buf_arr[index];
1445
1446         length = qlcnic_get_sts_totallength(sts_data0);
1447         cksum  = qlcnic_get_sts_status(sts_data0);
1448         pkt_offset = qlcnic_get_sts_pkt_offset(sts_data0);
1449
1450         skb = qlcnic_process_rxbuf(adapter, rds_ring, index, cksum);
1451         if (!skb)
1452                 return buffer;
1453
1454         if (length > rds_ring->skb_size)
1455                 skb_put(skb, rds_ring->skb_size);
1456         else
1457                 skb_put(skb, length);
1458
1459         if (pkt_offset)
1460                 skb_pull(skb, pkt_offset);
1461
1462         if (unlikely(qlcnic_check_rx_tagging(adapter, skb, &vid))) {
1463                 adapter->stats.rxdropped++;
1464                 dev_kfree_skb(skb);
1465                 return buffer;
1466         }
1467
1468         skb->protocol = eth_type_trans(skb, netdev);
1469
1470         if ((vid != 0xffff) && adapter->vlgrp)
1471                 vlan_gro_receive(&sds_ring->napi, adapter->vlgrp, vid, skb);
1472         else
1473                 napi_gro_receive(&sds_ring->napi, skb);
1474
1475         adapter->stats.rx_pkts++;
1476         adapter->stats.rxbytes += length;
1477
1478         return buffer;
1479 }
1480
1481 #define QLC_TCP_HDR_SIZE            20
1482 #define QLC_TCP_TS_OPTION_SIZE      12
1483 #define QLC_TCP_TS_HDR_SIZE         (QLC_TCP_HDR_SIZE + QLC_TCP_TS_OPTION_SIZE)
1484
1485 static struct qlcnic_rx_buffer *
1486 qlcnic_process_lro(struct qlcnic_adapter *adapter,
1487                 struct qlcnic_host_sds_ring *sds_ring,
1488                 int ring, u64 sts_data0, u64 sts_data1)
1489 {
1490         struct net_device *netdev = adapter->netdev;
1491         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1492         struct qlcnic_rx_buffer *buffer;
1493         struct sk_buff *skb;
1494         struct qlcnic_host_rds_ring *rds_ring;
1495         struct iphdr *iph;
1496         struct tcphdr *th;
1497         bool push, timestamp;
1498         int l2_hdr_offset, l4_hdr_offset;
1499         int index;
1500         u16 lro_length, length, data_offset;
1501         u32 seq_number;
1502         u16 vid = 0xffff;
1503
1504         if (unlikely(ring > adapter->max_rds_rings))
1505                 return NULL;
1506
1507         rds_ring = &recv_ctx->rds_rings[ring];
1508
1509         index = qlcnic_get_lro_sts_refhandle(sts_data0);
1510         if (unlikely(index > rds_ring->num_desc))
1511                 return NULL;
1512
1513         buffer = &rds_ring->rx_buf_arr[index];
1514
1515         timestamp = qlcnic_get_lro_sts_timestamp(sts_data0);
1516         lro_length = qlcnic_get_lro_sts_length(sts_data0);
1517         l2_hdr_offset = qlcnic_get_lro_sts_l2_hdr_offset(sts_data0);
1518         l4_hdr_offset = qlcnic_get_lro_sts_l4_hdr_offset(sts_data0);
1519         push = qlcnic_get_lro_sts_push_flag(sts_data0);
1520         seq_number = qlcnic_get_lro_sts_seq_number(sts_data1);
1521
1522         skb = qlcnic_process_rxbuf(adapter, rds_ring, index, STATUS_CKSUM_OK);
1523         if (!skb)
1524                 return buffer;
1525
1526         if (timestamp)
1527                 data_offset = l4_hdr_offset + QLC_TCP_TS_HDR_SIZE;
1528         else
1529                 data_offset = l4_hdr_offset + QLC_TCP_HDR_SIZE;
1530
1531         skb_put(skb, lro_length + data_offset);
1532
1533         skb_pull(skb, l2_hdr_offset);
1534
1535         if (unlikely(qlcnic_check_rx_tagging(adapter, skb, &vid))) {
1536                 adapter->stats.rxdropped++;
1537                 dev_kfree_skb(skb);
1538                 return buffer;
1539         }
1540
1541         skb->protocol = eth_type_trans(skb, netdev);
1542
1543         iph = (struct iphdr *)skb->data;
1544         th = (struct tcphdr *)(skb->data + (iph->ihl << 2));
1545
1546         length = (iph->ihl << 2) + (th->doff << 2) + lro_length;
1547         iph->tot_len = htons(length);
1548         iph->check = 0;
1549         iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
1550         th->psh = push;
1551         th->seq = htonl(seq_number);
1552
1553         length = skb->len;
1554
1555         if ((vid != 0xffff) && adapter->vlgrp)
1556                 vlan_hwaccel_receive_skb(skb, adapter->vlgrp, vid);
1557         else
1558                 netif_receive_skb(skb);
1559
1560         adapter->stats.lro_pkts++;
1561         adapter->stats.lrobytes += length;
1562
1563         return buffer;
1564 }
1565
1566 int
1567 qlcnic_process_rcv_ring(struct qlcnic_host_sds_ring *sds_ring, int max)
1568 {
1569         struct qlcnic_adapter *adapter = sds_ring->adapter;
1570         struct list_head *cur;
1571         struct status_desc *desc;
1572         struct qlcnic_rx_buffer *rxbuf;
1573         u64 sts_data0, sts_data1;
1574
1575         int count = 0;
1576         int opcode, ring, desc_cnt;
1577         u32 consumer = sds_ring->consumer;
1578
1579         while (count < max) {
1580                 desc = &sds_ring->desc_head[consumer];
1581                 sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
1582
1583                 if (!(sts_data0 & STATUS_OWNER_HOST))
1584                         break;
1585
1586                 desc_cnt = qlcnic_get_sts_desc_cnt(sts_data0);
1587                 opcode = qlcnic_get_sts_opcode(sts_data0);
1588
1589                 switch (opcode) {
1590                 case QLCNIC_RXPKT_DESC:
1591                 case QLCNIC_OLD_RXPKT_DESC:
1592                 case QLCNIC_SYN_OFFLOAD:
1593                         ring = qlcnic_get_sts_type(sts_data0);
1594                         rxbuf = qlcnic_process_rcv(adapter, sds_ring,
1595                                         ring, sts_data0);
1596                         break;
1597                 case QLCNIC_LRO_DESC:
1598                         ring = qlcnic_get_lro_sts_type(sts_data0);
1599                         sts_data1 = le64_to_cpu(desc->status_desc_data[1]);
1600                         rxbuf = qlcnic_process_lro(adapter, sds_ring,
1601                                         ring, sts_data0, sts_data1);
1602                         break;
1603                 case QLCNIC_RESPONSE_DESC:
1604                         qlcnic_handle_fw_message(desc_cnt, consumer, sds_ring);
1605                 default:
1606                         goto skip;
1607                 }
1608
1609                 WARN_ON(desc_cnt > 1);
1610
1611                 if (likely(rxbuf))
1612                         list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]);
1613                 else
1614                         adapter->stats.null_rxbuf++;
1615
1616 skip:
1617                 for (; desc_cnt > 0; desc_cnt--) {
1618                         desc = &sds_ring->desc_head[consumer];
1619                         desc->status_desc_data[0] =
1620                                 cpu_to_le64(STATUS_OWNER_PHANTOM);
1621                         consumer = get_next_index(consumer, sds_ring->num_desc);
1622                 }
1623                 count++;
1624         }
1625
1626         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1627                 struct qlcnic_host_rds_ring *rds_ring =
1628                         &adapter->recv_ctx.rds_rings[ring];
1629
1630                 if (!list_empty(&sds_ring->free_list[ring])) {
1631                         list_for_each(cur, &sds_ring->free_list[ring]) {
1632                                 rxbuf = list_entry(cur,
1633                                                 struct qlcnic_rx_buffer, list);
1634                                 qlcnic_alloc_rx_skb(adapter, rds_ring, rxbuf);
1635                         }
1636                         spin_lock(&rds_ring->lock);
1637                         list_splice_tail_init(&sds_ring->free_list[ring],
1638                                                 &rds_ring->free_list);
1639                         spin_unlock(&rds_ring->lock);
1640                 }
1641
1642                 qlcnic_post_rx_buffers_nodb(adapter, rds_ring);
1643         }
1644
1645         if (count) {
1646                 sds_ring->consumer = consumer;
1647                 writel(consumer, sds_ring->crb_sts_consumer);
1648         }
1649
1650         return count;
1651 }
1652
1653 void
1654 qlcnic_post_rx_buffers(struct qlcnic_adapter *adapter, u32 ringid,
1655         struct qlcnic_host_rds_ring *rds_ring)
1656 {
1657         struct rcv_desc *pdesc;
1658         struct qlcnic_rx_buffer *buffer;
1659         int producer, count = 0;
1660         struct list_head *head;
1661
1662         producer = rds_ring->producer;
1663
1664         head = &rds_ring->free_list;
1665         while (!list_empty(head)) {
1666
1667                 buffer = list_entry(head->next, struct qlcnic_rx_buffer, list);
1668
1669                 if (!buffer->skb) {
1670                         if (qlcnic_alloc_rx_skb(adapter, rds_ring, buffer))
1671                                 break;
1672                 }
1673
1674                 count++;
1675                 list_del(&buffer->list);
1676
1677                 /* make a rcv descriptor  */
1678                 pdesc = &rds_ring->desc_head[producer];
1679                 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1680                 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1681                 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1682
1683                 producer = get_next_index(producer, rds_ring->num_desc);
1684         }
1685
1686         if (count) {
1687                 rds_ring->producer = producer;
1688                 writel((producer-1) & (rds_ring->num_desc-1),
1689                                 rds_ring->crb_rcv_producer);
1690         }
1691 }
1692
1693 static void
1694 qlcnic_post_rx_buffers_nodb(struct qlcnic_adapter *adapter,
1695                 struct qlcnic_host_rds_ring *rds_ring)
1696 {
1697         struct rcv_desc *pdesc;
1698         struct qlcnic_rx_buffer *buffer;
1699         int producer, count = 0;
1700         struct list_head *head;
1701
1702         if (!spin_trylock(&rds_ring->lock))
1703                 return;
1704
1705         producer = rds_ring->producer;
1706
1707         head = &rds_ring->free_list;
1708         while (!list_empty(head)) {
1709
1710                 buffer = list_entry(head->next, struct qlcnic_rx_buffer, list);
1711
1712                 if (!buffer->skb) {
1713                         if (qlcnic_alloc_rx_skb(adapter, rds_ring, buffer))
1714                                 break;
1715                 }
1716
1717                 count++;
1718                 list_del(&buffer->list);
1719
1720                 /* make a rcv descriptor  */
1721                 pdesc = &rds_ring->desc_head[producer];
1722                 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1723                 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1724                 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1725
1726                 producer = get_next_index(producer, rds_ring->num_desc);
1727         }
1728
1729         if (count) {
1730                 rds_ring->producer = producer;
1731                 writel((producer - 1) & (rds_ring->num_desc - 1),
1732                                 rds_ring->crb_rcv_producer);
1733         }
1734         spin_unlock(&rds_ring->lock);
1735 }
1736
1737 void
1738 qlcnic_fetch_mac(struct qlcnic_adapter *adapter, u32 off1, u32 off2,
1739                         u8 alt_mac, u8 *mac)
1740 {
1741         u32 mac_low, mac_high;
1742         int i;
1743
1744         mac_low = QLCRD32(adapter, off1);
1745         mac_high = QLCRD32(adapter, off2);
1746
1747         if (alt_mac) {
1748                 mac_low |= (mac_low >> 16) | (mac_high << 16);
1749                 mac_high >>= 16;
1750         }
1751
1752         for (i = 0; i < 2; i++)
1753                 mac[i] = (u8)(mac_high >> ((1 - i) * 8));
1754         for (i = 2; i < 6; i++)
1755                 mac[i] = (u8)(mac_low >> ((5 - i) * 8));
1756 }