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 int
 631 qlcnic_check_flash_fw_ver(struct qlcnic_adapter *adapter)
 632 {
 633         u32 ver = -1, min_ver;
 634
 635         qlcnic_rom_fast_read(adapter, QLCNIC_FW_VERSION_OFFSET, (int *)&ver);
 636
 637         ver = QLCNIC_DECODE_VERSION(ver);
 638         min_ver = QLCNIC_MIN_FW_VERSION;
 639
 640         if (ver < min_ver) {
 641                 dev_err(&adapter->pdev->dev,
 642                         "firmware version %d.%d.%d unsupported."
 643                         "Min supported version %d.%d.%d\n",
 644                         _major(ver), _minor(ver), _build(ver),
 645                         _major(min_ver), _minor(min_ver), _build(min_ver));
 646                 return -EINVAL;
 647         }
 648
 649         return 0;
 650 }
 651
 652 static int
 653 qlcnic_has_mn(struct qlcnic_adapter *adapter)
 654 {
 655         u32 capability;
 656         capability = 0;
 657
 658         capability = QLCRD32(adapter, QLCNIC_PEG_TUNE_CAPABILITY);
 659         if (capability & QLCNIC_PEG_TUNE_MN_PRESENT)
 660                 return 1;
 661
 662         return 0;
 663 }
 664
 665 static
 666 struct uni_table_desc *qlcnic_get_table_desc(const u8 *unirom, int section)
 667 {
 668         u32 i;
 669         struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
 670         __le32 entries = cpu_to_le32(directory->num_entries);
 671
 672         for (i = 0; i < entries; i++) {
 673
 674                 __le32 offs = cpu_to_le32(directory->findex) +
 675                                 (i * cpu_to_le32(directory->entry_size));
 676                 __le32 tab_type = cpu_to_le32(*((u32 *)&unirom[offs] + 8));
 677
 678                 if (tab_type == section)
 679                         return (struct uni_table_desc *) &unirom[offs];
 680         }
 681
 682         return NULL;
 683 }
 684
 685 #define FILEHEADER_SIZE (14 * 4)
 686
 687 static int
 688 qlcnic_validate_header(struct qlcnic_adapter *adapter)
 689 {
 690         const u8 *unirom = adapter->fw->data;
 691         struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
 692         __le32 fw_file_size = adapter->fw->size;
 693         __le32 entries;
 694         __le32 entry_size;
 695         __le32 tab_size;
 696
 697         if (fw_file_size < FILEHEADER_SIZE)
 698                 return -EINVAL;
 699
 700         entries = cpu_to_le32(directory->num_entries);
 701         entry_size = cpu_to_le32(directory->entry_size);
 702         tab_size = cpu_to_le32(directory->findex) + (entries * entry_size);
 703
 704         if (fw_file_size < tab_size)
 705                 return -EINVAL;
 706
 707         return 0;
 708 }
 709
 710 static int
 711 qlcnic_validate_bootld(struct qlcnic_adapter *adapter)
 712 {
 713         struct uni_table_desc *tab_desc;
 714         struct uni_data_desc *descr;
 715         const u8 *unirom = adapter->fw->data;
 716         int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
 717                                 QLCNIC_UNI_BOOTLD_IDX_OFF));
 718         __le32 offs;
 719         __le32 tab_size;
 720         __le32 data_size;
 721
 722         tab_desc = qlcnic_get_table_desc(unirom, QLCNIC_UNI_DIR_SECT_BOOTLD);
 723
 724         if (!tab_desc)
 725                 return -EINVAL;
 726
 727         tab_size = cpu_to_le32(tab_desc->findex) +
 728                         (cpu_to_le32(tab_desc->entry_size) * (idx + 1));
 729
 730         if (adapter->fw->size < tab_size)
 731                 return -EINVAL;
 732
 733         offs = cpu_to_le32(tab_desc->findex) +
 734                 (cpu_to_le32(tab_desc->entry_size) * (idx));
 735         descr = (struct uni_data_desc *)&unirom[offs];
 736
 737         data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size);
 738
 739         if (adapter->fw->size < data_size)
 740                 return -EINVAL;
 741
 742         return 0;
 743 }
 744
 745 static int
 746 qlcnic_validate_fw(struct qlcnic_adapter *adapter)
 747 {
 748         struct uni_table_desc *tab_desc;
 749         struct uni_data_desc *descr;
 750         const u8 *unirom = adapter->fw->data;
 751         int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
 752                                 QLCNIC_UNI_FIRMWARE_IDX_OFF));
 753         __le32 offs;
 754         __le32 tab_size;
 755         __le32 data_size;
 756
 757         tab_desc = qlcnic_get_table_desc(unirom, QLCNIC_UNI_DIR_SECT_FW);
 758
 759         if (!tab_desc)
 760                 return -EINVAL;
 761
 762         tab_size = cpu_to_le32(tab_desc->findex) +
 763                         (cpu_to_le32(tab_desc->entry_size) * (idx + 1));
 764
 765         if (adapter->fw->size < tab_size)
 766                 return -EINVAL;
 767
 768         offs = cpu_to_le32(tab_desc->findex) +
 769                 (cpu_to_le32(tab_desc->entry_size) * (idx));
 770         descr = (struct uni_data_desc *)&unirom[offs];
 771         data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size);
 772
 773         if (adapter->fw->size < data_size)
 774                 return -EINVAL;
 775
 776         return 0;
 777 }
 778
 779 static int
 780 qlcnic_validate_product_offs(struct qlcnic_adapter *adapter)
 781 {
 782         struct uni_table_desc *ptab_descr;
 783         const u8 *unirom = adapter->fw->data;
 784         int mn_present = qlcnic_has_mn(adapter);
 785         __le32 entries;
 786         __le32 entry_size;
 787         __le32 tab_size;
 788         u32 i;
 789
 790         ptab_descr = qlcnic_get_table_desc(unirom,
 791                                 QLCNIC_UNI_DIR_SECT_PRODUCT_TBL);
 792         if (!ptab_descr)
 793                 return -EINVAL;
 794
 795         entries = cpu_to_le32(ptab_descr->num_entries);
 796         entry_size = cpu_to_le32(ptab_descr->entry_size);
 797         tab_size = cpu_to_le32(ptab_descr->findex) + (entries * entry_size);
 798
 799         if (adapter->fw->size < tab_size)
 800                 return -EINVAL;
 801
 802 nomn:
 803         for (i = 0; i < entries; i++) {
 804
 805                 __le32 flags, file_chiprev, offs;
 806                 u8 chiprev = adapter->ahw.revision_id;
 807                 u32 flagbit;
 808
 809                 offs = cpu_to_le32(ptab_descr->findex) +
 810                                 (i * cpu_to_le32(ptab_descr->entry_size));
 811                 flags = cpu_to_le32(*((int *)&unirom[offs] +
 812                                                 QLCNIC_UNI_FLAGS_OFF));
 813                 file_chiprev = cpu_to_le32(*((int *)&unirom[offs] +
 814                                                 QLCNIC_UNI_CHIP_REV_OFF));
 815
 816                 flagbit = mn_present ? 1 : 2;
 817
 818                 if ((chiprev == file_chiprev) &&
 819                                         ((1ULL << flagbit) & flags)) {
 820                         adapter->file_prd_off = offs;
 821                         return 0;
 822                 }
 823         }
 824         if (mn_present) {
 825                 mn_present = 0;
 826                 goto nomn;
 827         }
 828         return -EINVAL;
 829 }
 830
 831 static int
 832 qlcnic_validate_unified_romimage(struct qlcnic_adapter *adapter)
 833 {
 834         if (qlcnic_validate_header(adapter)) {
 835                 dev_err(&adapter->pdev->dev,
 836                                 "unified image: header validation failed\n");
 837                 return -EINVAL;
 838         }
 839
 840         if (qlcnic_validate_product_offs(adapter)) {
 841                 dev_err(&adapter->pdev->dev,
 842                                 "unified image: product validation failed\n");
 843                 return -EINVAL;
 844         }
 845
 846         if (qlcnic_validate_bootld(adapter)) {
 847                 dev_err(&adapter->pdev->dev,
 848                                 "unified image: bootld validation failed\n");
 849                 return -EINVAL;
 850         }
 851
 852         if (qlcnic_validate_fw(adapter)) {
 853                 dev_err(&adapter->pdev->dev,
 854                                 "unified image: firmware validation failed\n");
 855                 return -EINVAL;
 856         }
 857
 858         return 0;
 859 }
 860
 861 static
 862 struct uni_data_desc *qlcnic_get_data_desc(struct qlcnic_adapter *adapter,
 863                         u32 section, u32 idx_offset)
 864 {
 865         const u8 *unirom = adapter->fw->data;
 866         int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
 867                                                                 idx_offset));
 868         struct uni_table_desc *tab_desc;
 869         __le32 offs;
 870
 871         tab_desc = qlcnic_get_table_desc(unirom, section);
 872
 873         if (tab_desc == NULL)
 874                 return NULL;
 875
 876         offs = cpu_to_le32(tab_desc->findex) +
 877                         (cpu_to_le32(tab_desc->entry_size) * idx);
 878
 879         return (struct uni_data_desc *)&unirom[offs];
 880 }
 881
 882 static u8 *
 883 qlcnic_get_bootld_offs(struct qlcnic_adapter *adapter)
 884 {
 885         u32 offs = QLCNIC_BOOTLD_START;
 886
 887         if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
 888                 offs = cpu_to_le32((qlcnic_get_data_desc(adapter,
 889                                         QLCNIC_UNI_DIR_SECT_BOOTLD,
 890                                         QLCNIC_UNI_BOOTLD_IDX_OFF))->findex);
 891
 892         return (u8 *)&adapter->fw->data[offs];
 893 }
 894
 895 static u8 *
 896 qlcnic_get_fw_offs(struct qlcnic_adapter *adapter)
 897 {
 898         u32 offs = QLCNIC_IMAGE_START;
 899
 900         if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
 901                 offs = cpu_to_le32((qlcnic_get_data_desc(adapter,
 902                                         QLCNIC_UNI_DIR_SECT_FW,
 903                                         QLCNIC_UNI_FIRMWARE_IDX_OFF))->findex);
 904
 905         return (u8 *)&adapter->fw->data[offs];
 906 }
 907
 908 static __le32
 909 qlcnic_get_fw_size(struct qlcnic_adapter *adapter)
 910 {
 911         if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
 912                 return cpu_to_le32((qlcnic_get_data_desc(adapter,
 913                                         QLCNIC_UNI_DIR_SECT_FW,
 914                                         QLCNIC_UNI_FIRMWARE_IDX_OFF))->size);
 915         else
 916                 return cpu_to_le32(
 917                         *(u32 *)&adapter->fw->data[QLCNIC_FW_SIZE_OFFSET]);
 918 }
 919
 920 static __le32
 921 qlcnic_get_fw_version(struct qlcnic_adapter *adapter)
 922 {
 923         struct uni_data_desc *fw_data_desc;
 924         const struct firmware *fw = adapter->fw;
 925         __le32 major, minor, sub;
 926         const u8 *ver_str;
 927         int i, ret;
 928
 929         if (adapter->fw_type != QLCNIC_UNIFIED_ROMIMAGE)
 930                 return cpu_to_le32(*(u32 *)&fw->data[QLCNIC_FW_VERSION_OFFSET]);
 931
 932         fw_data_desc = qlcnic_get_data_desc(adapter, QLCNIC_UNI_DIR_SECT_FW,
 933                         QLCNIC_UNI_FIRMWARE_IDX_OFF);
 934         ver_str = fw->data + cpu_to_le32(fw_data_desc->findex) +
 935                 cpu_to_le32(fw_data_desc->size) - 17;
 936
 937         for (i = 0; i < 12; i++) {
 938                 if (!strncmp(&ver_str[i], "REV=", 4)) {
 939                         ret = sscanf(&ver_str[i+4], "%u.%u.%u ",
 940                                         &major, &minor, &sub);
 941                         if (ret != 3)
 942                                 return 0;
 943                         else
 944                                 return major + (minor << 8) + (sub << 16);
 945                 }
 946         }
 947
 948         return 0;
 949 }
 950
 951 static __le32
 952 qlcnic_get_bios_version(struct qlcnic_adapter *adapter)
 953 {
 954         const struct firmware *fw = adapter->fw;
 955         __le32 bios_ver, prd_off = adapter->file_prd_off;
 956
 957         if (adapter->fw_type != QLCNIC_UNIFIED_ROMIMAGE)
 958                 return cpu_to_le32(
 959                         *(u32 *)&fw->data[QLCNIC_BIOS_VERSION_OFFSET]);
 960
 961         bios_ver = cpu_to_le32(*((u32 *) (&fw->data[prd_off])
 962                                 + QLCNIC_UNI_BIOS_VERSION_OFF));
 963
 964         return (bios_ver << 16) + ((bios_ver >> 8) & 0xff00) + (bios_ver >> 24);
 965 }
 966
 967 static void qlcnic_rom_lock_recovery(struct qlcnic_adapter *adapter)
 968 {
 969         if (qlcnic_pcie_sem_lock(adapter, 2, QLCNIC_ROM_LOCK_ID))
 970                 dev_info(&adapter->pdev->dev, "Resetting rom_lock\n");
 971
 972         qlcnic_pcie_sem_unlock(adapter, 2);
 973 }
 974
 975 static int
 976 qlcnic_check_fw_hearbeat(struct qlcnic_adapter *adapter)
 977 {
 978         u32 heartbeat, ret = -EIO;
 979         int retries = QLCNIC_HEARTBEAT_CHECK_RETRY_COUNT;
 980
 981         adapter->heartbeat = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
 982
 983         do {
 984                 msleep(QLCNIC_HEARTBEAT_PERIOD_MSECS);
 985                 heartbeat = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
 986                 if (heartbeat != adapter->heartbeat) {
 987                         ret = QLCNIC_RCODE_SUCCESS;
 988                         break;
 989                 }
 990         } while (--retries);
 991
 992         return ret;
 993 }
 994
 995 int
 996 qlcnic_need_fw_reset(struct qlcnic_adapter *adapter)
 997 {
 998         if (qlcnic_check_fw_hearbeat(adapter)) {
 999                 qlcnic_rom_lock_recovery(adapter);
1000                 return 1;
1001         }
1002
1003         if (adapter->need_fw_reset)
1004                 return 1;
1005
1006         if (adapter->fw)
1007                 return 1;
1008
1009         return 0;
1010 }
1011
1012 static const char *fw_name[] = {
1013         QLCNIC_UNIFIED_ROMIMAGE_NAME,
1014         QLCNIC_FLASH_ROMIMAGE_NAME,
1015 };
1016
1017 int
1018 qlcnic_load_firmware(struct qlcnic_adapter *adapter)
1019 {
1020         u64 *ptr64;
1021         u32 i, flashaddr, size;
1022         const struct firmware *fw = adapter->fw;
1023         struct pci_dev *pdev = adapter->pdev;
1024
1025         dev_info(&pdev->dev, "loading firmware from %s\n",
1026                         fw_name[adapter->fw_type]);
1027
1028         if (fw) {
1029                 __le64 data;
1030
1031                 size = (QLCNIC_IMAGE_START - QLCNIC_BOOTLD_START) / 8;
1032
1033                 ptr64 = (u64 *)qlcnic_get_bootld_offs(adapter);
1034                 flashaddr = QLCNIC_BOOTLD_START;
1035
1036                 for (i = 0; i < size; i++) {
1037                         data = cpu_to_le64(ptr64[i]);
1038
1039                         if (qlcnic_pci_mem_write_2M(adapter, flashaddr, data))
1040                                 return -EIO;
1041
1042                         flashaddr += 8;
1043                 }
1044
1045                 size = (__force u32)qlcnic_get_fw_size(adapter) / 8;
1046
1047                 ptr64 = (u64 *)qlcnic_get_fw_offs(adapter);
1048                 flashaddr = QLCNIC_IMAGE_START;
1049
1050                 for (i = 0; i < size; i++) {
1051                         data = cpu_to_le64(ptr64[i]);
1052
1053                         if (qlcnic_pci_mem_write_2M(adapter,
1054                                                 flashaddr, data))
1055                                 return -EIO;
1056
1057                         flashaddr += 8;
1058                 }
1059
1060                 size = (__force u32)qlcnic_get_fw_size(adapter) % 8;
1061                 if (size) {
1062                         data = cpu_to_le64(ptr64[i]);
1063
1064                         if (qlcnic_pci_mem_write_2M(adapter,
1065                                                 flashaddr, data))
1066                                 return -EIO;
1067                 }
1068
1069         } else {
1070                 u64 data;
1071                 u32 hi, lo;
1072
1073                 size = (QLCNIC_IMAGE_START - QLCNIC_BOOTLD_START) / 8;
1074                 flashaddr = QLCNIC_BOOTLD_START;
1075
1076                 for (i = 0; i < size; i++) {
1077                         if (qlcnic_rom_fast_read(adapter,
1078                                         flashaddr, (int *)&lo) != 0)
1079                                 return -EIO;
1080                         if (qlcnic_rom_fast_read(adapter,
1081                                         flashaddr + 4, (int *)&hi) != 0)
1082                                 return -EIO;
1083
1084                         data = (((u64)hi << 32) | lo);
1085
1086                         if (qlcnic_pci_mem_write_2M(adapter,
1087                                                 flashaddr, data))
1088                                 return -EIO;
1089
1090                         flashaddr += 8;
1091                 }
1092         }
1093         msleep(1);
1094
1095         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x18, 0x1020);
1096         QLCWR32(adapter, QLCNIC_ROMUSB_GLB_SW_RESET, 0x80001e);
1097         return 0;
1098 }
1099
1100 static int
1101 qlcnic_validate_firmware(struct qlcnic_adapter *adapter)
1102 {
1103         __le32 val;
1104         u32 ver, bios, min_size;
1105         struct pci_dev *pdev = adapter->pdev;
1106         const struct firmware *fw = adapter->fw;
1107         u8 fw_type = adapter->fw_type;
1108
1109         if (fw_type == QLCNIC_UNIFIED_ROMIMAGE) {
1110                 if (qlcnic_validate_unified_romimage(adapter))
1111                         return -EINVAL;
1112
1113                 min_size = QLCNIC_UNI_FW_MIN_SIZE;
1114         } else {
1115                 val = cpu_to_le32(*(u32 *)&fw->data[QLCNIC_FW_MAGIC_OFFSET]);
1116                 if ((__force u32)val != QLCNIC_BDINFO_MAGIC)
1117                         return -EINVAL;
1118
1119                 min_size = QLCNIC_FW_MIN_SIZE;
1120         }
1121
1122         if (fw->size < min_size)
1123                 return -EINVAL;
1124
1125         val = qlcnic_get_fw_version(adapter);
1126         ver = QLCNIC_DECODE_VERSION(val);
1127
1128         if (ver < QLCNIC_MIN_FW_VERSION) {
1129                 dev_err(&pdev->dev,
1130                                 "%s: firmware version %d.%d.%d unsupported\n",
1131                 fw_name[fw_type], _major(ver), _minor(ver), _build(ver));
1132                 return -EINVAL;
1133         }
1134
1135         val = qlcnic_get_bios_version(adapter);
1136         qlcnic_rom_fast_read(adapter, QLCNIC_BIOS_VERSION_OFFSET, (int *)&bios);
1137         if ((__force u32)val != bios) {
1138                 dev_err(&pdev->dev, "%s: firmware bios is incompatible\n",
1139                                 fw_name[fw_type]);
1140                 return -EINVAL;
1141         }
1142
1143         QLCWR32(adapter, QLCNIC_CAM_RAM(0x1fc), QLCNIC_BDINFO_MAGIC);
1144         return 0;
1145 }
1146
1147 static void
1148 qlcnic_get_next_fwtype(struct qlcnic_adapter *adapter)
1149 {
1150         u8 fw_type;
1151
1152         switch (adapter->fw_type) {
1153         case QLCNIC_UNKNOWN_ROMIMAGE:
1154                 fw_type = QLCNIC_UNIFIED_ROMIMAGE;
1155                 break;
1156
1157         case QLCNIC_UNIFIED_ROMIMAGE:
1158         default:
1159                 fw_type = QLCNIC_FLASH_ROMIMAGE;
1160                 break;
1161         }
1162
1163         adapter->fw_type = fw_type;
1164 }
1165
1166
1167
1168 void qlcnic_request_firmware(struct qlcnic_adapter *adapter)
1169 {
1170         struct pci_dev *pdev = adapter->pdev;
1171         int rc;
1172
1173         adapter->fw_type = QLCNIC_UNKNOWN_ROMIMAGE;
1174
1175 next:
1176         qlcnic_get_next_fwtype(adapter);
1177
1178         if (adapter->fw_type == QLCNIC_FLASH_ROMIMAGE) {
1179                 adapter->fw = NULL;
1180         } else {
1181                 rc = request_firmware(&adapter->fw,
1182                                 fw_name[adapter->fw_type], &pdev->dev);
1183                 if (rc != 0)
1184                         goto next;
1185
1186                 rc = qlcnic_validate_firmware(adapter);
1187                 if (rc != 0) {
1188                         release_firmware(adapter->fw);
1189                         msleep(1);
1190                         goto next;
1191                 }
1192         }
1193 }
1194
1195
1196 void
1197 qlcnic_release_firmware(struct qlcnic_adapter *adapter)
1198 {
1199         if (adapter->fw)
1200                 release_firmware(adapter->fw);
1201         adapter->fw = NULL;
1202 }
1203
1204 static void
1205 qlcnic_handle_linkevent(struct qlcnic_adapter *adapter,
1206                                 struct qlcnic_fw_msg *msg)
1207 {
1208         u32 cable_OUI;
1209         u16 cable_len;
1210         u16 link_speed;
1211         u8  link_status, module, duplex, autoneg;
1212         struct net_device *netdev = adapter->netdev;
1213
1214         adapter->has_link_events = 1;
1215
1216         cable_OUI = msg->body[1] & 0xffffffff;
1217         cable_len = (msg->body[1] >> 32) & 0xffff;
1218         link_speed = (msg->body[1] >> 48) & 0xffff;
1219
1220         link_status = msg->body[2] & 0xff;
1221         duplex = (msg->body[2] >> 16) & 0xff;
1222         autoneg = (msg->body[2] >> 24) & 0xff;
1223
1224         module = (msg->body[2] >> 8) & 0xff;
1225         if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLE)
1226                 dev_info(&netdev->dev, "unsupported cable: OUI 0x%x, "
1227                                 "length %d\n", cable_OUI, cable_len);
1228         else if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLELEN)
1229                 dev_info(&netdev->dev, "unsupported cable length %d\n",
1230                                 cable_len);
1231
1232         qlcnic_advert_link_change(adapter, link_status);
1233
1234         if (duplex == LINKEVENT_FULL_DUPLEX)
1235                 adapter->link_duplex = DUPLEX_FULL;
1236         else
1237                 adapter->link_duplex = DUPLEX_HALF;
1238
1239         adapter->module_type = module;
1240         adapter->link_autoneg = autoneg;
1241         adapter->link_speed = link_speed;
1242 }
1243
1244 static void
1245 qlcnic_handle_fw_message(int desc_cnt, int index,
1246                 struct qlcnic_host_sds_ring *sds_ring)
1247 {
1248         struct qlcnic_fw_msg msg;
1249         struct status_desc *desc;
1250         int i = 0, opcode;
1251
1252         while (desc_cnt > 0 && i < 8) {
1253                 desc = &sds_ring->desc_head[index];
1254                 msg.words[i++] = le64_to_cpu(desc->status_desc_data[0]);
1255                 msg.words[i++] = le64_to_cpu(desc->status_desc_data[1]);
1256
1257                 index = get_next_index(index, sds_ring->num_desc);
1258                 desc_cnt--;
1259         }
1260
1261         opcode = qlcnic_get_nic_msg_opcode(msg.body[0]);
1262         switch (opcode) {
1263         case QLCNIC_C2H_OPCODE_GET_LINKEVENT_RESPONSE:
1264                 qlcnic_handle_linkevent(sds_ring->adapter, &msg);
1265                 break;
1266         default:
1267                 break;
1268         }
1269 }
1270
1271 static int
1272 qlcnic_alloc_rx_skb(struct qlcnic_adapter *adapter,
1273                 struct qlcnic_host_rds_ring *rds_ring,
1274                 struct qlcnic_rx_buffer *buffer)
1275 {
1276         struct sk_buff *skb;
1277         dma_addr_t dma;
1278         struct pci_dev *pdev = adapter->pdev;
1279
1280         skb = dev_alloc_skb(rds_ring->skb_size);
1281         if (!skb) {
1282                 adapter->stats.skb_alloc_failure++;
1283                 return -ENOMEM;
1284         }
1285
1286         skb_reserve(skb, NET_IP_ALIGN);
1287
1288         dma = pci_map_single(pdev, skb->data,
1289                         rds_ring->dma_size, PCI_DMA_FROMDEVICE);
1290
1291         if (pci_dma_mapping_error(pdev, dma)) {
1292                 adapter->stats.rx_dma_map_error++;
1293                 dev_kfree_skb_any(skb);
1294                 return -ENOMEM;
1295         }
1296
1297         buffer->skb = skb;
1298         buffer->dma = dma;
1299
1300         return 0;
1301 }
1302
1303 static struct sk_buff *qlcnic_process_rxbuf(struct qlcnic_adapter *adapter,
1304                 struct qlcnic_host_rds_ring *rds_ring, u16 index, u16 cksum)
1305 {
1306         struct qlcnic_rx_buffer *buffer;
1307         struct sk_buff *skb;
1308
1309         buffer = &rds_ring->rx_buf_arr[index];
1310
1311         if (unlikely(buffer->skb == NULL)) {
1312                 WARN_ON(1);
1313                 return NULL;
1314         }
1315
1316         pci_unmap_single(adapter->pdev, buffer->dma, rds_ring->dma_size,
1317                         PCI_DMA_FROMDEVICE);
1318
1319         skb = buffer->skb;
1320
1321         if (likely(adapter->rx_csum && (cksum == STATUS_CKSUM_OK ||
1322                                                 cksum == STATUS_CKSUM_LOOP))) {
1323                 adapter->stats.csummed++;
1324                 skb->ip_summed = CHECKSUM_UNNECESSARY;
1325         } else {
1326                 skb_checksum_none_assert(skb);
1327         }
1328
1329         skb->dev = adapter->netdev;
1330
1331         buffer->skb = NULL;
1332
1333         return skb;
1334 }
1335
1336 static int
1337 qlcnic_check_rx_tagging(struct qlcnic_adapter *adapter, struct sk_buff *skb,
1338                         u16 *vlan_tag)
1339 {
1340         struct ethhdr *eth_hdr;
1341
1342         if (!__vlan_get_tag(skb, vlan_tag)) {
1343                 eth_hdr = (struct ethhdr *) skb->data;
1344                 memmove(skb->data + VLAN_HLEN, eth_hdr, ETH_ALEN * 2);
1345                 skb_pull(skb, VLAN_HLEN);
1346         }
1347         if (!adapter->pvid)
1348                 return 0;
1349
1350         if (*vlan_tag == adapter->pvid) {
1351                 /* Outer vlan tag. Packet should follow non-vlan path */
1352                 *vlan_tag = 0xffff;
1353                 return 0;
1354         }
1355         if (adapter->flags & QLCNIC_TAGGING_ENABLED)
1356                 return 0;
1357
1358         return -EINVAL;
1359 }
1360
1361 static struct qlcnic_rx_buffer *
1362 qlcnic_process_rcv(struct qlcnic_adapter *adapter,
1363                 struct qlcnic_host_sds_ring *sds_ring,
1364                 int ring, u64 sts_data0)
1365 {
1366         struct net_device *netdev = adapter->netdev;
1367         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1368         struct qlcnic_rx_buffer *buffer;
1369         struct sk_buff *skb;
1370         struct qlcnic_host_rds_ring *rds_ring;
1371         int index, length, cksum, pkt_offset;
1372         u16 vid = 0xffff;
1373
1374         if (unlikely(ring >= adapter->max_rds_rings))
1375                 return NULL;
1376
1377         rds_ring = &recv_ctx->rds_rings[ring];
1378
1379         index = qlcnic_get_sts_refhandle(sts_data0);
1380         if (unlikely(index >= rds_ring->num_desc))
1381                 return NULL;
1382
1383         buffer = &rds_ring->rx_buf_arr[index];
1384
1385         length = qlcnic_get_sts_totallength(sts_data0);
1386         cksum  = qlcnic_get_sts_status(sts_data0);
1387         pkt_offset = qlcnic_get_sts_pkt_offset(sts_data0);
1388
1389         skb = qlcnic_process_rxbuf(adapter, rds_ring, index, cksum);
1390         if (!skb)
1391                 return buffer;
1392
1393         if (length > rds_ring->skb_size)
1394                 skb_put(skb, rds_ring->skb_size);
1395         else
1396                 skb_put(skb, length);
1397
1398         if (pkt_offset)
1399                 skb_pull(skb, pkt_offset);
1400
1401         if (unlikely(qlcnic_check_rx_tagging(adapter, skb, &vid))) {
1402                 adapter->stats.rxdropped++;
1403                 dev_kfree_skb(skb);
1404                 return buffer;
1405         }
1406
1407         skb->protocol = eth_type_trans(skb, netdev);
1408
1409         if ((vid != 0xffff) && adapter->vlgrp)
1410                 vlan_gro_receive(&sds_ring->napi, adapter->vlgrp, vid, skb);
1411         else
1412                 napi_gro_receive(&sds_ring->napi, skb);
1413
1414         adapter->stats.rx_pkts++;
1415         adapter->stats.rxbytes += length;
1416
1417         return buffer;
1418 }
1419
1420 #define QLC_TCP_HDR_SIZE            20
1421 #define QLC_TCP_TS_OPTION_SIZE      12
1422 #define QLC_TCP_TS_HDR_SIZE         (QLC_TCP_HDR_SIZE + QLC_TCP_TS_OPTION_SIZE)
1423
1424 static struct qlcnic_rx_buffer *
1425 qlcnic_process_lro(struct qlcnic_adapter *adapter,
1426                 struct qlcnic_host_sds_ring *sds_ring,
1427                 int ring, u64 sts_data0, u64 sts_data1)
1428 {
1429         struct net_device *netdev = adapter->netdev;
1430         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1431         struct qlcnic_rx_buffer *buffer;
1432         struct sk_buff *skb;
1433         struct qlcnic_host_rds_ring *rds_ring;
1434         struct iphdr *iph;
1435         struct tcphdr *th;
1436         bool push, timestamp;
1437         int l2_hdr_offset, l4_hdr_offset;
1438         int index;
1439         u16 lro_length, length, data_offset;
1440         u32 seq_number;
1441         u16 vid = 0xffff;
1442
1443         if (unlikely(ring > adapter->max_rds_rings))
1444                 return NULL;
1445
1446         rds_ring = &recv_ctx->rds_rings[ring];
1447
1448         index = qlcnic_get_lro_sts_refhandle(sts_data0);
1449         if (unlikely(index > rds_ring->num_desc))
1450                 return NULL;
1451
1452         buffer = &rds_ring->rx_buf_arr[index];
1453
1454         timestamp = qlcnic_get_lro_sts_timestamp(sts_data0);
1455         lro_length = qlcnic_get_lro_sts_length(sts_data0);
1456         l2_hdr_offset = qlcnic_get_lro_sts_l2_hdr_offset(sts_data0);
1457         l4_hdr_offset = qlcnic_get_lro_sts_l4_hdr_offset(sts_data0);
1458         push = qlcnic_get_lro_sts_push_flag(sts_data0);
1459         seq_number = qlcnic_get_lro_sts_seq_number(sts_data1);
1460
1461         skb = qlcnic_process_rxbuf(adapter, rds_ring, index, STATUS_CKSUM_OK);
1462         if (!skb)
1463                 return buffer;
1464
1465         if (timestamp)
1466                 data_offset = l4_hdr_offset + QLC_TCP_TS_HDR_SIZE;
1467         else
1468                 data_offset = l4_hdr_offset + QLC_TCP_HDR_SIZE;
1469
1470         skb_put(skb, lro_length + data_offset);
1471
1472         skb_pull(skb, l2_hdr_offset);
1473
1474         if (unlikely(qlcnic_check_rx_tagging(adapter, skb, &vid))) {
1475                 adapter->stats.rxdropped++;
1476                 dev_kfree_skb(skb);
1477                 return buffer;
1478         }
1479
1480         skb->protocol = eth_type_trans(skb, netdev);
1481
1482         iph = (struct iphdr *)skb->data;
1483         th = (struct tcphdr *)(skb->data + (iph->ihl << 2));
1484
1485         length = (iph->ihl << 2) + (th->doff << 2) + lro_length;
1486         iph->tot_len = htons(length);
1487         iph->check = 0;
1488         iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
1489         th->psh = push;
1490         th->seq = htonl(seq_number);
1491
1492         length = skb->len;
1493
1494         if ((vid != 0xffff) && adapter->vlgrp)
1495                 vlan_hwaccel_receive_skb(skb, adapter->vlgrp, vid);
1496         else
1497                 netif_receive_skb(skb);
1498
1499         adapter->stats.lro_pkts++;
1500         adapter->stats.lrobytes += length;
1501
1502         return buffer;
1503 }
1504
1505 int
1506 qlcnic_process_rcv_ring(struct qlcnic_host_sds_ring *sds_ring, int max)
1507 {
1508         struct qlcnic_adapter *adapter = sds_ring->adapter;
1509         struct list_head *cur;
1510         struct status_desc *desc;
1511         struct qlcnic_rx_buffer *rxbuf;
1512         u64 sts_data0, sts_data1;
1513
1514         int count = 0;
1515         int opcode, ring, desc_cnt;
1516         u32 consumer = sds_ring->consumer;
1517
1518         while (count < max) {
1519                 desc = &sds_ring->desc_head[consumer];
1520                 sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
1521
1522                 if (!(sts_data0 & STATUS_OWNER_HOST))
1523                         break;
1524
1525                 desc_cnt = qlcnic_get_sts_desc_cnt(sts_data0);
1526                 opcode = qlcnic_get_sts_opcode(sts_data0);
1527
1528                 switch (opcode) {
1529                 case QLCNIC_RXPKT_DESC:
1530                 case QLCNIC_OLD_RXPKT_DESC:
1531                 case QLCNIC_SYN_OFFLOAD:
1532                         ring = qlcnic_get_sts_type(sts_data0);
1533                         rxbuf = qlcnic_process_rcv(adapter, sds_ring,
1534                                         ring, sts_data0);
1535                         break;
1536                 case QLCNIC_LRO_DESC:
1537                         ring = qlcnic_get_lro_sts_type(sts_data0);
1538                         sts_data1 = le64_to_cpu(desc->status_desc_data[1]);
1539                         rxbuf = qlcnic_process_lro(adapter, sds_ring,
1540                                         ring, sts_data0, sts_data1);
1541                         break;
1542                 case QLCNIC_RESPONSE_DESC:
1543                         qlcnic_handle_fw_message(desc_cnt, consumer, sds_ring);
1544                 default:
1545                         goto skip;
1546                 }
1547
1548                 WARN_ON(desc_cnt > 1);
1549
1550                 if (likely(rxbuf))
1551                         list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]);
1552                 else
1553                         adapter->stats.null_rxbuf++;
1554
1555 skip:
1556                 for (; desc_cnt > 0; desc_cnt--) {
1557                         desc = &sds_ring->desc_head[consumer];
1558                         desc->status_desc_data[0] =
1559                                 cpu_to_le64(STATUS_OWNER_PHANTOM);
1560                         consumer = get_next_index(consumer, sds_ring->num_desc);
1561                 }
1562                 count++;
1563         }
1564
1565         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1566                 struct qlcnic_host_rds_ring *rds_ring =
1567                         &adapter->recv_ctx.rds_rings[ring];
1568
1569                 if (!list_empty(&sds_ring->free_list[ring])) {
1570                         list_for_each(cur, &sds_ring->free_list[ring]) {
1571                                 rxbuf = list_entry(cur,
1572                                                 struct qlcnic_rx_buffer, list);
1573                                 qlcnic_alloc_rx_skb(adapter, rds_ring, rxbuf);
1574                         }
1575                         spin_lock(&rds_ring->lock);
1576                         list_splice_tail_init(&sds_ring->free_list[ring],
1577                                                 &rds_ring->free_list);
1578                         spin_unlock(&rds_ring->lock);
1579                 }
1580
1581                 qlcnic_post_rx_buffers_nodb(adapter, rds_ring);
1582         }
1583
1584         if (count) {
1585                 sds_ring->consumer = consumer;
1586                 writel(consumer, sds_ring->crb_sts_consumer);
1587         }
1588
1589         return count;
1590 }
1591
1592 void
1593 qlcnic_post_rx_buffers(struct qlcnic_adapter *adapter, u32 ringid,
1594         struct qlcnic_host_rds_ring *rds_ring)
1595 {
1596         struct rcv_desc *pdesc;
1597         struct qlcnic_rx_buffer *buffer;
1598         int producer, count = 0;
1599         struct list_head *head;
1600
1601         producer = rds_ring->producer;
1602
1603         head = &rds_ring->free_list;
1604         while (!list_empty(head)) {
1605
1606                 buffer = list_entry(head->next, struct qlcnic_rx_buffer, list);
1607
1608                 if (!buffer->skb) {
1609                         if (qlcnic_alloc_rx_skb(adapter, rds_ring, buffer))
1610                                 break;
1611                 }
1612
1613                 count++;
1614                 list_del(&buffer->list);
1615
1616                 /* make a rcv descriptor  */
1617                 pdesc = &rds_ring->desc_head[producer];
1618                 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1619                 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1620                 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1621
1622                 producer = get_next_index(producer, rds_ring->num_desc);
1623         }
1624
1625         if (count) {
1626                 rds_ring->producer = producer;
1627                 writel((producer-1) & (rds_ring->num_desc-1),
1628                                 rds_ring->crb_rcv_producer);
1629         }
1630 }
1631
1632 static void
1633 qlcnic_post_rx_buffers_nodb(struct qlcnic_adapter *adapter,
1634                 struct qlcnic_host_rds_ring *rds_ring)
1635 {
1636         struct rcv_desc *pdesc;
1637         struct qlcnic_rx_buffer *buffer;
1638         int producer, count = 0;
1639         struct list_head *head;
1640
1641         if (!spin_trylock(&rds_ring->lock))
1642                 return;
1643
1644         producer = rds_ring->producer;
1645
1646         head = &rds_ring->free_list;
1647         while (!list_empty(head)) {
1648
1649                 buffer = list_entry(head->next, struct qlcnic_rx_buffer, list);
1650
1651                 if (!buffer->skb) {
1652                         if (qlcnic_alloc_rx_skb(adapter, rds_ring, buffer))
1653                                 break;
1654                 }
1655
1656                 count++;
1657                 list_del(&buffer->list);
1658
1659                 /* make a rcv descriptor  */
1660                 pdesc = &rds_ring->desc_head[producer];
1661                 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1662                 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1663                 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1664
1665                 producer = get_next_index(producer, rds_ring->num_desc);
1666         }
1667
1668         if (count) {
1669                 rds_ring->producer = producer;
1670                 writel((producer - 1) & (rds_ring->num_desc - 1),
1671                                 rds_ring->crb_rcv_producer);
1672         }
1673         spin_unlock(&rds_ring->lock);
1674 }
1675
1676 void
1677 qlcnic_fetch_mac(struct qlcnic_adapter *adapter, u32 off1, u32 off2,
1678                         u8 alt_mac, u8 *mac)
1679 {
1680         u32 mac_low, mac_high;
1681         int i;
1682
1683         mac_low = QLCRD32(adapter, off1);
1684         mac_high = QLCRD32(adapter, off2);
1685
1686         if (alt_mac) {
1687                 mac_low |= (mac_low >> 16) | (mac_high << 16);
1688                 mac_high >>= 16;
1689         }
1690
1691         for (i = 0; i < 2; i++)
1692                 mac[i] = (u8)(mac_high >> ((1 - i) * 8));
1693         for (i = 2; i < 6; i++)
1694                 mac[i] = (u8)(mac_low >> ((5 - i) * 8));
1695 }