drivers/net/qlcnic/qlcnic_init.c

   1 /*
   2  * Copyright (C) 2009 - QLogic Corporation.
   3  * All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License
   7  * as published by the Free Software Foundation; either version 2
   8  * of the License, or (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  18  * MA  02111-1307, USA.
  19  *
  20  * The full GNU General Public License is included in this distribution
  21  * in the file called "COPYING".
  22  *
  23  */
  24
  25 #include <linux/netdevice.h>
  26 #include <linux/delay.h>
  27 #include <linux/slab.h>
  28 #include "qlcnic.h"
  29
  30 struct crb_addr_pair {
  31         u32 addr;
  32         u32 data;
  33 };
  34
  35 #define QLCNIC_MAX_CRB_XFORM 60
  36 static unsigned int crb_addr_xform[QLCNIC_MAX_CRB_XFORM];
  37
  38 #define crb_addr_transform(name) \
  39         (crb_addr_xform[QLCNIC_HW_PX_MAP_CRB_##name] = \
  40         QLCNIC_HW_CRB_HUB_AGT_ADR_##name << 20)
  41
  42 #define QLCNIC_ADDR_ERROR (0xffffffff)
  43
  44 static void
  45 qlcnic_post_rx_buffers_nodb(struct qlcnic_adapter *adapter,
  46                 struct qlcnic_host_rds_ring *rds_ring);
  47
  48 static void crb_addr_transform_setup(void)
  49 {
  50         crb_addr_transform(XDMA);
  51         crb_addr_transform(TIMR);
  52         crb_addr_transform(SRE);
  53         crb_addr_transform(SQN3);
  54         crb_addr_transform(SQN2);
  55         crb_addr_transform(SQN1);
  56         crb_addr_transform(SQN0);
  57         crb_addr_transform(SQS3);
  58         crb_addr_transform(SQS2);
  59         crb_addr_transform(SQS1);
  60         crb_addr_transform(SQS0);
  61         crb_addr_transform(RPMX7);
  62         crb_addr_transform(RPMX6);
  63         crb_addr_transform(RPMX5);
  64         crb_addr_transform(RPMX4);
  65         crb_addr_transform(RPMX3);
  66         crb_addr_transform(RPMX2);
  67         crb_addr_transform(RPMX1);
  68         crb_addr_transform(RPMX0);
  69         crb_addr_transform(ROMUSB);
  70         crb_addr_transform(SN);
  71         crb_addr_transform(QMN);
  72         crb_addr_transform(QMS);
  73         crb_addr_transform(PGNI);
  74         crb_addr_transform(PGND);
  75         crb_addr_transform(PGN3);
  76         crb_addr_transform(PGN2);
  77         crb_addr_transform(PGN1);
  78         crb_addr_transform(PGN0);
  79         crb_addr_transform(PGSI);
  80         crb_addr_transform(PGSD);
  81         crb_addr_transform(PGS3);
  82         crb_addr_transform(PGS2);
  83         crb_addr_transform(PGS1);
  84         crb_addr_transform(PGS0);
  85         crb_addr_transform(PS);
  86         crb_addr_transform(PH);
  87         crb_addr_transform(NIU);
  88         crb_addr_transform(I2Q);
  89         crb_addr_transform(EG);
  90         crb_addr_transform(MN);
  91         crb_addr_transform(MS);
  92         crb_addr_transform(CAS2);
  93         crb_addr_transform(CAS1);
  94         crb_addr_transform(CAS0);
  95         crb_addr_transform(CAM);
  96         crb_addr_transform(C2C1);
  97         crb_addr_transform(C2C0);
  98         crb_addr_transform(SMB);
  99         crb_addr_transform(OCM0);
 100         crb_addr_transform(I2C0);
 101 }
 102
 103 void qlcnic_release_rx_buffers(struct qlcnic_adapter *adapter)
 104 {
 105         struct qlcnic_recv_context *recv_ctx;
 106         struct qlcnic_host_rds_ring *rds_ring;
 107         struct qlcnic_rx_buffer *rx_buf;
 108         int i, ring;
 109
 110         recv_ctx = &adapter->recv_ctx;
 111         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
 112                 rds_ring = &recv_ctx->rds_rings[ring];
 113                 for (i = 0; i < rds_ring->num_desc; ++i) {
 114                         rx_buf = &(rds_ring->rx_buf_arr[i]);
 115                         if (rx_buf->state == QLCNIC_BUFFER_FREE)
 116                                 continue;
 117                         pci_unmap_single(adapter->pdev,
 118                                         rx_buf->dma,
 119                                         rds_ring->dma_size,
 120                                         PCI_DMA_FROMDEVICE);
 121                         if (rx_buf->skb != NULL)
 122                                 dev_kfree_skb_any(rx_buf->skb);
 123                 }
 124         }
 125 }
 126
 127 void qlcnic_release_tx_buffers(struct qlcnic_adapter *adapter)
 128 {
 129         struct qlcnic_cmd_buffer *cmd_buf;
 130         struct qlcnic_skb_frag *buffrag;
 131         int i, j;
 132         struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
 133
 134         cmd_buf = tx_ring->cmd_buf_arr;
 135         for (i = 0; i < tx_ring->num_desc; i++) {
 136                 buffrag = cmd_buf->frag_array;
 137                 if (buffrag->dma) {
 138                         pci_unmap_single(adapter->pdev, buffrag->dma,
 139                                          buffrag->length, PCI_DMA_TODEVICE);
 140                         buffrag->dma = 0ULL;
 141                 }
 142                 for (j = 0; j < cmd_buf->frag_count; j++) {
 143                         buffrag++;
 144                         if (buffrag->dma) {
 145                                 pci_unmap_page(adapter->pdev, buffrag->dma,
 146                                                buffrag->length,
 147                                                PCI_DMA_TODEVICE);
 148                                 buffrag->dma = 0ULL;
 149                         }
 150                 }
 151                 if (cmd_buf->skb) {
 152                         dev_kfree_skb_any(cmd_buf->skb);
 153                         cmd_buf->skb = NULL;
 154                 }
 155                 cmd_buf++;
 156         }
 157 }
 158
 159 void qlcnic_free_sw_resources(struct qlcnic_adapter *adapter)
 160 {
 161         struct qlcnic_recv_context *recv_ctx;
 162         struct qlcnic_host_rds_ring *rds_ring;
 163         struct qlcnic_host_tx_ring *tx_ring;
 164         int ring;
 165
 166         recv_ctx = &adapter->recv_ctx;
 167
 168         if (recv_ctx->rds_rings == NULL)
 169                 goto skip_rds;
 170
 171         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
 172                 rds_ring = &recv_ctx->rds_rings[ring];
 173                 vfree(rds_ring->rx_buf_arr);
 174                 rds_ring->rx_buf_arr = NULL;
 175         }
 176         kfree(recv_ctx->rds_rings);
 177
 178 skip_rds:
 179         if (adapter->tx_ring == NULL)
 180                 return;
 181
 182         tx_ring = adapter->tx_ring;
 183         vfree(tx_ring->cmd_buf_arr);
 184         kfree(adapter->tx_ring);
 185 }
 186
 187 int qlcnic_alloc_sw_resources(struct qlcnic_adapter *adapter)
 188 {
 189         struct qlcnic_recv_context *recv_ctx;
 190         struct qlcnic_host_rds_ring *rds_ring;
 191         struct qlcnic_host_sds_ring *sds_ring;
 192         struct qlcnic_host_tx_ring *tx_ring;
 193         struct qlcnic_rx_buffer *rx_buf;
 194         int ring, i, size;
 195
 196         struct qlcnic_cmd_buffer *cmd_buf_arr;
 197         struct net_device *netdev = adapter->netdev;
 198
 199         size = sizeof(struct qlcnic_host_tx_ring);
 200         tx_ring = kzalloc(size, GFP_KERNEL);
 201         if (tx_ring == NULL) {
 202                 dev_err(&netdev->dev, "failed to allocate tx ring struct\n");
 203                 return -ENOMEM;
 204         }
 205         adapter->tx_ring = tx_ring;
 206
 207         tx_ring->num_desc = adapter->num_txd;
 208         tx_ring->txq = netdev_get_tx_queue(netdev, 0);
 209
 210         cmd_buf_arr = vmalloc(TX_BUFF_RINGSIZE(tx_ring));
 211         if (cmd_buf_arr == NULL) {
 212                 dev_err(&netdev->dev, "failed to allocate cmd buffer ring\n");
 213                 goto err_out;
 214         }
 215         memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
 216         tx_ring->cmd_buf_arr = cmd_buf_arr;
 217
 218         recv_ctx = &adapter->recv_ctx;
 219
 220         size = adapter->max_rds_rings * sizeof(struct qlcnic_host_rds_ring);
 221         rds_ring = kzalloc(size, GFP_KERNEL);
 222         if (rds_ring == NULL) {
 223                 dev_err(&netdev->dev, "failed to allocate rds ring struct\n");
 224                 goto err_out;
 225         }
 226         recv_ctx->rds_rings = rds_ring;
 227
 228         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
 229                 rds_ring = &recv_ctx->rds_rings[ring];
 230                 switch (ring) {
 231                 case RCV_RING_NORMAL:
 232                         rds_ring->num_desc = adapter->num_rxd;
 233                         rds_ring->dma_size = QLCNIC_P3_RX_BUF_MAX_LEN;
 234                         rds_ring->skb_size = rds_ring->dma_size + NET_IP_ALIGN;
 235                         break;
 236
 237                 case RCV_RING_JUMBO:
 238                         rds_ring->num_desc = adapter->num_jumbo_rxd;
 239                         rds_ring->dma_size =
 240                                 QLCNIC_P3_RX_JUMBO_BUF_MAX_LEN;
 241
 242                         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
 243                                 rds_ring->dma_size += QLCNIC_LRO_BUFFER_EXTRA;
 244
 245                         rds_ring->skb_size =
 246                                 rds_ring->dma_size + NET_IP_ALIGN;
 247                         break;
 248                 }
 249                 rds_ring->rx_buf_arr = (struct qlcnic_rx_buffer *)
 250                         vmalloc(RCV_BUFF_RINGSIZE(rds_ring));
 251                 if (rds_ring->rx_buf_arr == NULL) {
 252                         dev_err(&netdev->dev, "Failed to allocate "
 253                                 "rx buffer ring %d\n", ring);
 254                         goto err_out;
 255                 }
 256                 memset(rds_ring->rx_buf_arr, 0, RCV_BUFF_RINGSIZE(rds_ring));
 257                 INIT_LIST_HEAD(&rds_ring->free_list);
 258                 /*
 259                  * Now go through all of them, set reference handles
 260                  * and put them in the queues.
 261                  */
 262                 rx_buf = rds_ring->rx_buf_arr;
 263                 for (i = 0; i < rds_ring->num_desc; i++) {
 264                         list_add_tail(&rx_buf->list,
 265                                         &rds_ring->free_list);
 266                         rx_buf->ref_handle = i;
 267                         rx_buf->state = QLCNIC_BUFFER_FREE;
 268                         rx_buf++;
 269                 }
 270                 spin_lock_init(&rds_ring->lock);
 271         }
 272
 273         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 274                 sds_ring = &recv_ctx->sds_rings[ring];
 275                 sds_ring->irq = adapter->msix_entries[ring].vector;
 276                 sds_ring->adapter = adapter;
 277                 sds_ring->num_desc = adapter->num_rxd;
 278
 279                 for (i = 0; i < NUM_RCV_DESC_RINGS; i++)
 280                         INIT_LIST_HEAD(&sds_ring->free_list[i]);
 281         }
 282
 283         return 0;
 284
 285 err_out:
 286         qlcnic_free_sw_resources(adapter);
 287         return -ENOMEM;
 288 }
 289
 290 /*
 291  * Utility to translate from internal Phantom CRB address
 292  * to external PCI CRB address.
 293  */
 294 static u32 qlcnic_decode_crb_addr(u32 addr)
 295 {
 296         int i;
 297         u32 base_addr, offset, pci_base;
 298
 299         crb_addr_transform_setup();
 300
 301         pci_base = QLCNIC_ADDR_ERROR;
 302         base_addr = addr & 0xfff00000;
 303         offset = addr & 0x000fffff;
 304
 305         for (i = 0; i < QLCNIC_MAX_CRB_XFORM; i++) {
 306                 if (crb_addr_xform[i] == base_addr) {
 307                         pci_base = i << 20;
 308                         break;
 309                 }
 310         }
 311         if (pci_base == QLCNIC_ADDR_ERROR)
 312                 return pci_base;
 313         else
 314                 return pci_base + offset;
 315 }
 316
 317 #define QLCNIC_MAX_ROM_WAIT_USEC        100
 318
 319 static int qlcnic_wait_rom_done(struct qlcnic_adapter *adapter)
 320 {
 321         long timeout = 0;
 322         long done = 0;
 323
 324         cond_resched();
 325
 326         while (done == 0) {
 327                 done = QLCRD32(adapter, QLCNIC_ROMUSB_GLB_STATUS);
 328                 done &= 2;
 329                 if (++timeout >= QLCNIC_MAX_ROM_WAIT_USEC) {
 330                         dev_err(&adapter->pdev->dev,
 331                                 "Timeout reached  waiting for rom done");
 332                         return -EIO;
 333                 }
 334                 udelay(1);
 335         }
 336         return 0;
 337 }
 338
 339 static int do_rom_fast_read(struct qlcnic_adapter *adapter,
 340                             int addr, int *valp)
 341 {
 342         QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ADDRESS, addr);
 343         QLCWR32(adapter, QLCNIC_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
 344         QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ABYTE_CNT, 3);
 345         QLCWR32(adapter, QLCNIC_ROMUSB_ROM_INSTR_OPCODE, 0xb);
 346         if (qlcnic_wait_rom_done(adapter)) {
 347                 dev_err(&adapter->pdev->dev, "Error waiting for rom done\n");
 348                 return -EIO;
 349         }
 350         /* reset abyte_cnt and dummy_byte_cnt */
 351         QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ABYTE_CNT, 0);
 352         udelay(10);
 353         QLCWR32(adapter, QLCNIC_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
 354
 355         *valp = QLCRD32(adapter, QLCNIC_ROMUSB_ROM_RDATA);
 356         return 0;
 357 }
 358
 359 static int do_rom_fast_read_words(struct qlcnic_adapter *adapter, int addr,
 360                                   u8 *bytes, size_t size)
 361 {
 362         int addridx;
 363         int ret = 0;
 364
 365         for (addridx = addr; addridx < (addr + size); addridx += 4) {
 366                 int v;
 367                 ret = do_rom_fast_read(adapter, addridx, &v);
 368                 if (ret != 0)
 369                         break;
 370                 *(__le32 *)bytes = cpu_to_le32(v);
 371                 bytes += 4;
 372         }
 373
 374         return ret;
 375 }
 376
 377 int
 378 qlcnic_rom_fast_read_words(struct qlcnic_adapter *adapter, int addr,
 379                                 u8 *bytes, size_t size)
 380 {
 381         int ret;
 382
 383         ret = qlcnic_rom_lock(adapter);
 384         if (ret < 0)
 385                 return ret;
 386
 387         ret = do_rom_fast_read_words(adapter, addr, bytes, size);
 388
 389         qlcnic_rom_unlock(adapter);
 390         return ret;
 391 }
 392
 393 int qlcnic_rom_fast_read(struct qlcnic_adapter *adapter, int addr, int *valp)
 394 {
 395         int ret;
 396
 397         if (qlcnic_rom_lock(adapter) != 0)
 398                 return -EIO;
 399
 400         ret = do_rom_fast_read(adapter, addr, valp);
 401         qlcnic_rom_unlock(adapter);
 402         return ret;
 403 }
 404
 405 int qlcnic_pinit_from_rom(struct qlcnic_adapter *adapter)
 406 {
 407         int addr, val;
 408         int i, n, init_delay;
 409         struct crb_addr_pair *buf;
 410         unsigned offset;
 411         u32 off;
 412         struct pci_dev *pdev = adapter->pdev;
 413
 414         /* resetall */
 415         qlcnic_rom_lock(adapter);
 416         QLCWR32(adapter, QLCNIC_ROMUSB_GLB_SW_RESET, 0xfeffffff);
 417         qlcnic_rom_unlock(adapter);
 418
 419         if (qlcnic_rom_fast_read(adapter, 0, &n) != 0 || (n != 0xcafecafe) ||
 420                         qlcnic_rom_fast_read(adapter, 4, &n) != 0) {
 421                 dev_err(&pdev->dev, "ERROR Reading crb_init area: val:%x\n", n);
 422                 return -EIO;
 423         }
 424         offset = n & 0xffffU;
 425         n = (n >> 16) & 0xffffU;
 426
 427         if (n >= 1024) {
 428                 dev_err(&pdev->dev, "QLOGIC card flash not initialized.\n");
 429                 return -EIO;
 430         }
 431
 432         buf = kcalloc(n, sizeof(struct crb_addr_pair), GFP_KERNEL);
 433         if (buf == NULL) {
 434                 dev_err(&pdev->dev, "Unable to calloc memory for rom read.\n");
 435                 return -ENOMEM;
 436         }
 437
 438         for (i = 0; i < n; i++) {
 439                 if (qlcnic_rom_fast_read(adapter, 8*i + 4*offset, &val) != 0 ||
 440                 qlcnic_rom_fast_read(adapter, 8*i + 4*offset + 4, &addr) != 0) {
 441                         kfree(buf);
 442                         return -EIO;
 443                 }
 444
 445                 buf[i].addr = addr;
 446                 buf[i].data = val;
 447         }
 448
 449         for (i = 0; i < n; i++) {
 450
 451                 off = qlcnic_decode_crb_addr(buf[i].addr);
 452                 if (off == QLCNIC_ADDR_ERROR) {
 453                         dev_err(&pdev->dev, "CRB init value out of range %x\n",
 454                                         buf[i].addr);
 455                         continue;
 456                 }
 457                 off += QLCNIC_PCI_CRBSPACE;
 458
 459                 if (off & 1)
 460                         continue;
 461
 462                 /* skipping cold reboot MAGIC */
 463                 if (off == QLCNIC_CAM_RAM(0x1fc))
 464                         continue;
 465                 if (off == (QLCNIC_CRB_I2C0 + 0x1c))
 466                         continue;
 467                 if (off == (ROMUSB_GLB + 0xbc)) /* do not reset PCI */
 468                         continue;
 469                 if (off == (ROMUSB_GLB + 0xa8))
 470                         continue;
 471                 if (off == (ROMUSB_GLB + 0xc8)) /* core clock */
 472                         continue;
 473                 if (off == (ROMUSB_GLB + 0x24)) /* MN clock */
 474                         continue;
 475                 if (off == (ROMUSB_GLB + 0x1c)) /* MS clock */
 476                         continue;
 477                 if ((off & 0x0ff00000) == QLCNIC_CRB_DDR_NET)
 478                         continue;
 479                 /* skip the function enable register */
 480                 if (off == QLCNIC_PCIE_REG(PCIE_SETUP_FUNCTION))
 481                         continue;
 482                 if (off == QLCNIC_PCIE_REG(PCIE_SETUP_FUNCTION2))
 483                         continue;
 484                 if ((off & 0x0ff00000) == QLCNIC_CRB_SMB)
 485                         continue;
 486
 487                 init_delay = 1;
 488                 /* After writing this register, HW needs time for CRB */
 489                 /* to quiet down (else crb_window returns 0xffffffff) */
 490                 if (off == QLCNIC_ROMUSB_GLB_SW_RESET)
 491                         init_delay = 1000;
 492
 493                 QLCWR32(adapter, off, buf[i].data);
 494
 495                 msleep(init_delay);
 496         }
 497         kfree(buf);
 498
 499         /* p2dn replyCount */
 500         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_D + 0xec, 0x1e);
 501         /* disable_peg_cache 0 & 1*/
 502         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_D + 0x4c, 8);
 503         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_I + 0x4c, 8);
 504
 505         /* peg_clr_all */
 506         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x8, 0);
 507         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0xc, 0);
 508         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x8, 0);
 509         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_1 + 0xc, 0);
 510         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x8, 0);
 511         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_2 + 0xc, 0);
 512         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x8, 0);
 513         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_3 + 0xc, 0);
 514         return 0;
 515 }
 516
 517 int
 518 qlcnic_setup_idc_param(struct qlcnic_adapter *adapter) {
 519
 520         int timeo;
 521         u32 val;
 522
 523         if (adapter->fw_hal_version == QLCNIC_FW_BASE) {
 524                 val = QLCRD32(adapter, QLCNIC_CRB_DEV_PARTITION_INFO);
 525                 val = QLC_DEV_GET_DRV(val, adapter->portnum);
 526                 if ((val & 0x3) != QLCNIC_TYPE_NIC) {
 527                         dev_err(&adapter->pdev->dev,
 528                                 "Not an Ethernet NIC func=%u\n", val);
 529                         return -EIO;
 530                 }
 531                 adapter->physical_port = (val >> 2);
 532         }
 533         if (qlcnic_rom_fast_read(adapter, QLCNIC_ROM_DEV_INIT_TIMEOUT, &timeo))
 534                 timeo = 30;
 535
 536         adapter->dev_init_timeo = timeo;
 537
 538         if (qlcnic_rom_fast_read(adapter, QLCNIC_ROM_DRV_RESET_TIMEOUT, &timeo))
 539                 timeo = 10;
 540
 541         adapter->reset_ack_timeo = timeo;
 542
 543         return 0;
 544 }
 545
 546 static int
 547 qlcnic_has_mn(struct qlcnic_adapter *adapter)
 548 {
 549         u32 capability, flashed_ver;
 550         capability = 0;
 551
 552         qlcnic_rom_fast_read(adapter,
 553                         QLCNIC_FW_VERSION_OFFSET, (int *)&flashed_ver);
 554         flashed_ver = QLCNIC_DECODE_VERSION(flashed_ver);
 555
 556         capability = QLCRD32(adapter, QLCNIC_PEG_TUNE_CAPABILITY);
 557         if (capability & QLCNIC_PEG_TUNE_MN_PRESENT)
 558                 return 1;
 559
 560         return 0;
 561 }
 562
 563 static
 564 struct uni_table_desc *qlcnic_get_table_desc(const u8 *unirom, int section)
 565 {
 566         u32 i;
 567         struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
 568         __le32 entries = cpu_to_le32(directory->num_entries);
 569
 570         for (i = 0; i < entries; i++) {
 571
 572                 __le32 offs = cpu_to_le32(directory->findex) +
 573                                 (i * cpu_to_le32(directory->entry_size));
 574                 __le32 tab_type = cpu_to_le32(*((u32 *)&unirom[offs] + 8));
 575
 576                 if (tab_type == section)
 577                         return (struct uni_table_desc *) &unirom[offs];
 578         }
 579
 580         return NULL;
 581 }
 582
 583 #define FILEHEADER_SIZE (14 * 4)
 584
 585 static int
 586 qlcnic_validate_header(struct qlcnic_adapter *adapter)
 587 {
 588         const u8 *unirom = adapter->fw->data;
 589         struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
 590         __le32 fw_file_size = adapter->fw->size;
 591         __le32 entries;
 592         __le32 entry_size;
 593         __le32 tab_size;
 594
 595         if (fw_file_size < FILEHEADER_SIZE)
 596                 return -EINVAL;
 597
 598         entries = cpu_to_le32(directory->num_entries);
 599         entry_size = cpu_to_le32(directory->entry_size);
 600         tab_size = cpu_to_le32(directory->findex) + (entries * entry_size);
 601
 602         if (fw_file_size < tab_size)
 603                 return -EINVAL;
 604
 605         return 0;
 606 }
 607
 608 static int
 609 qlcnic_validate_bootld(struct qlcnic_adapter *adapter)
 610 {
 611         struct uni_table_desc *tab_desc;
 612         struct uni_data_desc *descr;
 613         const u8 *unirom = adapter->fw->data;
 614         int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
 615                                 QLCNIC_UNI_BOOTLD_IDX_OFF));
 616         __le32 offs;
 617         __le32 tab_size;
 618         __le32 data_size;
 619
 620         tab_desc = qlcnic_get_table_desc(unirom, QLCNIC_UNI_DIR_SECT_BOOTLD);
 621
 622         if (!tab_desc)
 623                 return -EINVAL;
 624
 625         tab_size = cpu_to_le32(tab_desc->findex) +
 626                         (cpu_to_le32(tab_desc->entry_size) * (idx + 1));
 627
 628         if (adapter->fw->size < tab_size)
 629                 return -EINVAL;
 630
 631         offs = cpu_to_le32(tab_desc->findex) +
 632                 (cpu_to_le32(tab_desc->entry_size) * (idx));
 633         descr = (struct uni_data_desc *)&unirom[offs];
 634
 635         data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size);
 636
 637         if (adapter->fw->size < data_size)
 638                 return -EINVAL;
 639
 640         return 0;
 641 }
 642
 643 static int
 644 qlcnic_validate_fw(struct qlcnic_adapter *adapter)
 645 {
 646         struct uni_table_desc *tab_desc;
 647         struct uni_data_desc *descr;
 648         const u8 *unirom = adapter->fw->data;
 649         int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
 650                                 QLCNIC_UNI_FIRMWARE_IDX_OFF));
 651         __le32 offs;
 652         __le32 tab_size;
 653         __le32 data_size;
 654
 655         tab_desc = qlcnic_get_table_desc(unirom, QLCNIC_UNI_DIR_SECT_FW);
 656
 657         if (!tab_desc)
 658                 return -EINVAL;
 659
 660         tab_size = cpu_to_le32(tab_desc->findex) +
 661                         (cpu_to_le32(tab_desc->entry_size) * (idx + 1));
 662
 663         if (adapter->fw->size < tab_size)
 664                 return -EINVAL;
 665
 666         offs = cpu_to_le32(tab_desc->findex) +
 667                 (cpu_to_le32(tab_desc->entry_size) * (idx));
 668         descr = (struct uni_data_desc *)&unirom[offs];
 669         data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size);
 670
 671         if (adapter->fw->size < data_size)
 672                 return -EINVAL;
 673
 674         return 0;
 675 }
 676
 677 static int
 678 qlcnic_validate_product_offs(struct qlcnic_adapter *adapter)
 679 {
 680         struct uni_table_desc *ptab_descr;
 681         const u8 *unirom = adapter->fw->data;
 682         int mn_present = qlcnic_has_mn(adapter);
 683         __le32 entries;
 684         __le32 entry_size;
 685         __le32 tab_size;
 686         u32 i;
 687
 688         ptab_descr = qlcnic_get_table_desc(unirom,
 689                                 QLCNIC_UNI_DIR_SECT_PRODUCT_TBL);
 690         if (!ptab_descr)
 691                 return -EINVAL;
 692
 693         entries = cpu_to_le32(ptab_descr->num_entries);
 694         entry_size = cpu_to_le32(ptab_descr->entry_size);
 695         tab_size = cpu_to_le32(ptab_descr->findex) + (entries * entry_size);
 696
 697         if (adapter->fw->size < tab_size)
 698                 return -EINVAL;
 699
 700 nomn:
 701         for (i = 0; i < entries; i++) {
 702
 703                 __le32 flags, file_chiprev, offs;
 704                 u8 chiprev = adapter->ahw.revision_id;
 705                 u32 flagbit;
 706
 707                 offs = cpu_to_le32(ptab_descr->findex) +
 708                                 (i * cpu_to_le32(ptab_descr->entry_size));
 709                 flags = cpu_to_le32(*((int *)&unirom[offs] +
 710                                                 QLCNIC_UNI_FLAGS_OFF));
 711                 file_chiprev = cpu_to_le32(*((int *)&unirom[offs] +
 712                                                 QLCNIC_UNI_CHIP_REV_OFF));
 713
 714                 flagbit = mn_present ? 1 : 2;
 715
 716                 if ((chiprev == file_chiprev) &&
 717                                         ((1ULL << flagbit) & flags)) {
 718                         adapter->file_prd_off = offs;
 719                         return 0;
 720                 }
 721         }
 722         if (mn_present) {
 723                 mn_present = 0;
 724                 goto nomn;
 725         }
 726         return -EINVAL;
 727 }
 728
 729 static int
 730 qlcnic_validate_unified_romimage(struct qlcnic_adapter *adapter)
 731 {
 732         if (qlcnic_validate_header(adapter)) {
 733                 dev_err(&adapter->pdev->dev,
 734                                 "unified image: header validation failed\n");
 735                 return -EINVAL;
 736         }
 737
 738         if (qlcnic_validate_product_offs(adapter)) {
 739                 dev_err(&adapter->pdev->dev,
 740                                 "unified image: product validation failed\n");
 741                 return -EINVAL;
 742         }
 743
 744         if (qlcnic_validate_bootld(adapter)) {
 745                 dev_err(&adapter->pdev->dev,
 746                                 "unified image: bootld validation failed\n");
 747                 return -EINVAL;
 748         }
 749
 750         if (qlcnic_validate_fw(adapter)) {
 751                 dev_err(&adapter->pdev->dev,
 752                                 "unified image: firmware validation failed\n");
 753                 return -EINVAL;
 754         }
 755
 756         return 0;
 757 }
 758
 759 static
 760 struct uni_data_desc *qlcnic_get_data_desc(struct qlcnic_adapter *adapter,
 761                         u32 section, u32 idx_offset)
 762 {
 763         const u8 *unirom = adapter->fw->data;
 764         int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
 765                                                                 idx_offset));
 766         struct uni_table_desc *tab_desc;
 767         __le32 offs;
 768
 769         tab_desc = qlcnic_get_table_desc(unirom, section);
 770
 771         if (tab_desc == NULL)
 772                 return NULL;
 773
 774         offs = cpu_to_le32(tab_desc->findex) +
 775                         (cpu_to_le32(tab_desc->entry_size) * idx);
 776
 777         return (struct uni_data_desc *)&unirom[offs];
 778 }
 779
 780 static u8 *
 781 qlcnic_get_bootld_offs(struct qlcnic_adapter *adapter)
 782 {
 783         u32 offs = QLCNIC_BOOTLD_START;
 784
 785         if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
 786                 offs = cpu_to_le32((qlcnic_get_data_desc(adapter,
 787                                         QLCNIC_UNI_DIR_SECT_BOOTLD,
 788                                         QLCNIC_UNI_BOOTLD_IDX_OFF))->findex);
 789
 790         return (u8 *)&adapter->fw->data[offs];
 791 }
 792
 793 static u8 *
 794 qlcnic_get_fw_offs(struct qlcnic_adapter *adapter)
 795 {
 796         u32 offs = QLCNIC_IMAGE_START;
 797
 798         if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
 799                 offs = cpu_to_le32((qlcnic_get_data_desc(adapter,
 800                                         QLCNIC_UNI_DIR_SECT_FW,
 801                                         QLCNIC_UNI_FIRMWARE_IDX_OFF))->findex);
 802
 803         return (u8 *)&adapter->fw->data[offs];
 804 }
 805
 806 static __le32
 807 qlcnic_get_fw_size(struct qlcnic_adapter *adapter)
 808 {
 809         if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
 810                 return cpu_to_le32((qlcnic_get_data_desc(adapter,
 811                                         QLCNIC_UNI_DIR_SECT_FW,
 812                                         QLCNIC_UNI_FIRMWARE_IDX_OFF))->size);
 813         else
 814                 return cpu_to_le32(
 815                         *(u32 *)&adapter->fw->data[QLCNIC_FW_SIZE_OFFSET]);
 816 }
 817
 818 static __le32
 819 qlcnic_get_fw_version(struct qlcnic_adapter *adapter)
 820 {
 821         struct uni_data_desc *fw_data_desc;
 822         const struct firmware *fw = adapter->fw;
 823         __le32 major, minor, sub;
 824         const u8 *ver_str;
 825         int i, ret;
 826
 827         if (adapter->fw_type != QLCNIC_UNIFIED_ROMIMAGE)
 828                 return cpu_to_le32(*(u32 *)&fw->data[QLCNIC_FW_VERSION_OFFSET]);
 829
 830         fw_data_desc = qlcnic_get_data_desc(adapter, QLCNIC_UNI_DIR_SECT_FW,
 831                         QLCNIC_UNI_FIRMWARE_IDX_OFF);
 832         ver_str = fw->data + cpu_to_le32(fw_data_desc->findex) +
 833                 cpu_to_le32(fw_data_desc->size) - 17;
 834
 835         for (i = 0; i < 12; i++) {
 836                 if (!strncmp(&ver_str[i], "REV=", 4)) {
 837                         ret = sscanf(&ver_str[i+4], "%u.%u.%u ",
 838                                         &major, &minor, &sub);
 839                         if (ret != 3)
 840                                 return 0;
 841                         else
 842                                 return major + (minor << 8) + (sub << 16);
 843                 }
 844         }
 845
 846         return 0;
 847 }
 848
 849 static __le32
 850 qlcnic_get_bios_version(struct qlcnic_adapter *adapter)
 851 {
 852         const struct firmware *fw = adapter->fw;
 853         __le32 bios_ver, prd_off = adapter->file_prd_off;
 854
 855         if (adapter->fw_type != QLCNIC_UNIFIED_ROMIMAGE)
 856                 return cpu_to_le32(
 857                         *(u32 *)&fw->data[QLCNIC_BIOS_VERSION_OFFSET]);
 858
 859         bios_ver = cpu_to_le32(*((u32 *) (&fw->data[prd_off])
 860                                 + QLCNIC_UNI_BIOS_VERSION_OFF));
 861
 862         return (bios_ver << 16) + ((bios_ver >> 8) & 0xff00) + (bios_ver >> 24);
 863 }
 864
 865 int
 866 qlcnic_need_fw_reset(struct qlcnic_adapter *adapter)
 867 {
 868         u32 count, old_count;
 869         u32 val, version, major, minor, build;
 870         int i, timeout;
 871
 872         if (adapter->need_fw_reset)
 873                 return 1;
 874
 875         /* last attempt had failed */
 876         if (QLCRD32(adapter, CRB_CMDPEG_STATE) == PHAN_INITIALIZE_FAILED)
 877                 return 1;
 878
 879         old_count = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
 880
 881         for (i = 0; i < 10; i++) {
 882
 883                 timeout = msleep_interruptible(200);
 884                 if (timeout) {
 885                         QLCWR32(adapter, CRB_CMDPEG_STATE,
 886                                         PHAN_INITIALIZE_FAILED);
 887                         return -EINTR;
 888                 }
 889
 890                 count = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
 891                 if (count != old_count)
 892                         break;
 893         }
 894
 895         /* firmware is dead */
 896         if (count == old_count)
 897                 return 1;
 898
 899         /* check if we have got newer or different file firmware */
 900         if (adapter->fw) {
 901
 902                 val = qlcnic_get_fw_version(adapter);
 903
 904                 version = QLCNIC_DECODE_VERSION(val);
 905
 906                 major = QLCRD32(adapter, QLCNIC_FW_VERSION_MAJOR);
 907                 minor = QLCRD32(adapter, QLCNIC_FW_VERSION_MINOR);
 908                 build = QLCRD32(adapter, QLCNIC_FW_VERSION_SUB);
 909
 910                 if (version > QLCNIC_VERSION_CODE(major, minor, build))
 911                         return 1;
 912         }
 913
 914         return 0;
 915 }
 916
 917 static const char *fw_name[] = {
 918         QLCNIC_UNIFIED_ROMIMAGE_NAME,
 919         QLCNIC_FLASH_ROMIMAGE_NAME,
 920 };
 921
 922 int
 923 qlcnic_load_firmware(struct qlcnic_adapter *adapter)
 924 {
 925         u64 *ptr64;
 926         u32 i, flashaddr, size;
 927         const struct firmware *fw = adapter->fw;
 928         struct pci_dev *pdev = adapter->pdev;
 929
 930         dev_info(&pdev->dev, "loading firmware from %s\n",
 931                         fw_name[adapter->fw_type]);
 932
 933         if (fw) {
 934                 __le64 data;
 935
 936                 size = (QLCNIC_IMAGE_START - QLCNIC_BOOTLD_START) / 8;
 937
 938                 ptr64 = (u64 *)qlcnic_get_bootld_offs(adapter);
 939                 flashaddr = QLCNIC_BOOTLD_START;
 940
 941                 for (i = 0; i < size; i++) {
 942                         data = cpu_to_le64(ptr64[i]);
 943
 944                         if (qlcnic_pci_mem_write_2M(adapter, flashaddr, data))
 945                                 return -EIO;
 946
 947                         flashaddr += 8;
 948                 }
 949
 950                 size = (__force u32)qlcnic_get_fw_size(adapter) / 8;
 951
 952                 ptr64 = (u64 *)qlcnic_get_fw_offs(adapter);
 953                 flashaddr = QLCNIC_IMAGE_START;
 954
 955                 for (i = 0; i < size; i++) {
 956                         data = cpu_to_le64(ptr64[i]);
 957
 958                         if (qlcnic_pci_mem_write_2M(adapter,
 959                                                 flashaddr, data))
 960                                 return -EIO;
 961
 962                         flashaddr += 8;
 963                 }
 964
 965                 size = (__force u32)qlcnic_get_fw_size(adapter) % 8;
 966                 if (size) {
 967                         data = cpu_to_le64(ptr64[i]);
 968
 969                         if (qlcnic_pci_mem_write_2M(adapter,
 970                                                 flashaddr, data))
 971                                 return -EIO;
 972                 }
 973
 974         } else {
 975                 u64 data;
 976                 u32 hi, lo;
 977
 978                 size = (QLCNIC_IMAGE_START - QLCNIC_BOOTLD_START) / 8;
 979                 flashaddr = QLCNIC_BOOTLD_START;
 980
 981                 for (i = 0; i < size; i++) {
 982                         if (qlcnic_rom_fast_read(adapter,
 983                                         flashaddr, (int *)&lo) != 0)
 984                                 return -EIO;
 985                         if (qlcnic_rom_fast_read(adapter,
 986                                         flashaddr + 4, (int *)&hi) != 0)
 987                                 return -EIO;
 988
 989                         data = (((u64)hi << 32) | lo);
 990
 991                         if (qlcnic_pci_mem_write_2M(adapter,
 992                                                 flashaddr, data))
 993                                 return -EIO;
 994
 995                         flashaddr += 8;
 996                 }
 997         }
 998         msleep(1);
 999
1000         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x18, 0x1020);
1001         QLCWR32(adapter, QLCNIC_ROMUSB_GLB_SW_RESET, 0x80001e);
1002         return 0;
1003 }
1004
1005 static int
1006 qlcnic_validate_firmware(struct qlcnic_adapter *adapter)
1007 {
1008         __le32 val;
1009         u32 ver, min_ver, bios, min_size;
1010         struct pci_dev *pdev = adapter->pdev;
1011         const struct firmware *fw = adapter->fw;
1012         u8 fw_type = adapter->fw_type;
1013
1014         if (fw_type == QLCNIC_UNIFIED_ROMIMAGE) {
1015                 if (qlcnic_validate_unified_romimage(adapter))
1016                         return -EINVAL;
1017
1018                 min_size = QLCNIC_UNI_FW_MIN_SIZE;
1019         } else {
1020                 val = cpu_to_le32(*(u32 *)&fw->data[QLCNIC_FW_MAGIC_OFFSET]);
1021                 if ((__force u32)val != QLCNIC_BDINFO_MAGIC)
1022                         return -EINVAL;
1023
1024                 min_size = QLCNIC_FW_MIN_SIZE;
1025         }
1026
1027         if (fw->size < min_size)
1028                 return -EINVAL;
1029
1030         val = qlcnic_get_fw_version(adapter);
1031
1032         min_ver = QLCNIC_VERSION_CODE(4, 0, 216);
1033
1034         ver = QLCNIC_DECODE_VERSION(val);
1035
1036         if ((_major(ver) > _QLCNIC_LINUX_MAJOR) || (ver < min_ver)) {
1037                 dev_err(&pdev->dev,
1038                                 "%s: firmware version %d.%d.%d unsupported\n",
1039                 fw_name[fw_type], _major(ver), _minor(ver), _build(ver));
1040                 return -EINVAL;
1041         }
1042
1043         val = qlcnic_get_bios_version(adapter);
1044         qlcnic_rom_fast_read(adapter, QLCNIC_BIOS_VERSION_OFFSET, (int *)&bios);
1045         if ((__force u32)val != bios) {
1046                 dev_err(&pdev->dev, "%s: firmware bios is incompatible\n",
1047                                 fw_name[fw_type]);
1048                 return -EINVAL;
1049         }
1050
1051         /* check if flashed firmware is newer */
1052         if (qlcnic_rom_fast_read(adapter,
1053                         QLCNIC_FW_VERSION_OFFSET, (int *)&val))
1054                 return -EIO;
1055
1056         val = QLCNIC_DECODE_VERSION(val);
1057         if (val > ver) {
1058                 dev_info(&pdev->dev, "%s: firmware is older than flash\n",
1059                                 fw_name[fw_type]);
1060                 return -EINVAL;
1061         }
1062
1063         QLCWR32(adapter, QLCNIC_CAM_RAM(0x1fc), QLCNIC_BDINFO_MAGIC);
1064         return 0;
1065 }
1066
1067 static void
1068 qlcnic_get_next_fwtype(struct qlcnic_adapter *adapter)
1069 {
1070         u8 fw_type;
1071
1072         switch (adapter->fw_type) {
1073         case QLCNIC_UNKNOWN_ROMIMAGE:
1074                 fw_type = QLCNIC_UNIFIED_ROMIMAGE;
1075                 break;
1076
1077         case QLCNIC_UNIFIED_ROMIMAGE:
1078         default:
1079                 fw_type = QLCNIC_FLASH_ROMIMAGE;
1080                 break;
1081         }
1082
1083         adapter->fw_type = fw_type;
1084 }
1085
1086
1087
1088 void qlcnic_request_firmware(struct qlcnic_adapter *adapter)
1089 {
1090         struct pci_dev *pdev = adapter->pdev;
1091         int rc;
1092
1093         adapter->fw_type = QLCNIC_UNKNOWN_ROMIMAGE;
1094
1095 next:
1096         qlcnic_get_next_fwtype(adapter);
1097
1098         if (adapter->fw_type == QLCNIC_FLASH_ROMIMAGE) {
1099                 adapter->fw = NULL;
1100         } else {
1101                 rc = request_firmware(&adapter->fw,
1102                                 fw_name[adapter->fw_type], &pdev->dev);
1103                 if (rc != 0)
1104                         goto next;
1105
1106                 rc = qlcnic_validate_firmware(adapter);
1107                 if (rc != 0) {
1108                         release_firmware(adapter->fw);
1109                         msleep(1);
1110                         goto next;
1111                 }
1112         }
1113 }
1114
1115
1116 void
1117 qlcnic_release_firmware(struct qlcnic_adapter *adapter)
1118 {
1119         if (adapter->fw)
1120                 release_firmware(adapter->fw);
1121         adapter->fw = NULL;
1122 }
1123
1124 int qlcnic_phantom_init(struct qlcnic_adapter *adapter)
1125 {
1126         u32 val;
1127         int retries = 60;
1128
1129         do {
1130                 val = QLCRD32(adapter, CRB_CMDPEG_STATE);
1131
1132                 switch (val) {
1133                 case PHAN_INITIALIZE_COMPLETE:
1134                 case PHAN_INITIALIZE_ACK:
1135                         return 0;
1136                 case PHAN_INITIALIZE_FAILED:
1137                         goto out_err;
1138                 default:
1139                         break;
1140                 }
1141
1142                 msleep(500);
1143
1144         } while (--retries);
1145
1146         QLCWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
1147
1148 out_err:
1149         dev_err(&adapter->pdev->dev, "firmware init failed\n");
1150         return -EIO;
1151 }
1152
1153 static int
1154 qlcnic_receive_peg_ready(struct qlcnic_adapter *adapter)
1155 {
1156         u32 val;
1157         int retries = 2000;
1158
1159         do {
1160                 val = QLCRD32(adapter, CRB_RCVPEG_STATE);
1161
1162                 if (val == PHAN_PEG_RCV_INITIALIZED)
1163                         return 0;
1164
1165                 msleep(10);
1166
1167         } while (--retries);
1168
1169         if (!retries) {
1170                 dev_err(&adapter->pdev->dev, "Receive Peg initialization not "
1171                               "complete, state: 0x%x.\n", val);
1172                 return -EIO;
1173         }
1174
1175         return 0;
1176 }
1177
1178 int qlcnic_init_firmware(struct qlcnic_adapter *adapter)
1179 {
1180         int err;
1181
1182         err = qlcnic_receive_peg_ready(adapter);
1183         if (err)
1184                 return err;
1185
1186         QLCWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_ACK);
1187
1188         return err;
1189 }
1190
1191 static void
1192 qlcnic_handle_linkevent(struct qlcnic_adapter *adapter,
1193                                 struct qlcnic_fw_msg *msg)
1194 {
1195         u32 cable_OUI;
1196         u16 cable_len;
1197         u16 link_speed;
1198         u8  link_status, module, duplex, autoneg;
1199         struct net_device *netdev = adapter->netdev;
1200
1201         adapter->has_link_events = 1;
1202
1203         cable_OUI = msg->body[1] & 0xffffffff;
1204         cable_len = (msg->body[1] >> 32) & 0xffff;
1205         link_speed = (msg->body[1] >> 48) & 0xffff;
1206
1207         link_status = msg->body[2] & 0xff;
1208         duplex = (msg->body[2] >> 16) & 0xff;
1209         autoneg = (msg->body[2] >> 24) & 0xff;
1210
1211         module = (msg->body[2] >> 8) & 0xff;
1212         if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLE)
1213                 dev_info(&netdev->dev, "unsupported cable: OUI 0x%x, "
1214                                 "length %d\n", cable_OUI, cable_len);
1215         else if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLELEN)
1216                 dev_info(&netdev->dev, "unsupported cable length %d\n",
1217                                 cable_len);
1218
1219         qlcnic_advert_link_change(adapter, link_status);
1220
1221         if (duplex == LINKEVENT_FULL_DUPLEX)
1222                 adapter->link_duplex = DUPLEX_FULL;
1223         else
1224                 adapter->link_duplex = DUPLEX_HALF;
1225
1226         adapter->module_type = module;
1227         adapter->link_autoneg = autoneg;
1228         adapter->link_speed = link_speed;
1229 }
1230
1231 static void
1232 qlcnic_handle_fw_message(int desc_cnt, int index,
1233                 struct qlcnic_host_sds_ring *sds_ring)
1234 {
1235         struct qlcnic_fw_msg msg;
1236         struct status_desc *desc;
1237         int i = 0, opcode;
1238
1239         while (desc_cnt > 0 && i < 8) {
1240                 desc = &sds_ring->desc_head[index];
1241                 msg.words[i++] = le64_to_cpu(desc->status_desc_data[0]);
1242                 msg.words[i++] = le64_to_cpu(desc->status_desc_data[1]);
1243
1244                 index = get_next_index(index, sds_ring->num_desc);
1245                 desc_cnt--;
1246         }
1247
1248         opcode = qlcnic_get_nic_msg_opcode(msg.body[0]);
1249         switch (opcode) {
1250         case QLCNIC_C2H_OPCODE_GET_LINKEVENT_RESPONSE:
1251                 qlcnic_handle_linkevent(sds_ring->adapter, &msg);
1252                 break;
1253         default:
1254                 break;
1255         }
1256 }
1257
1258 static int
1259 qlcnic_alloc_rx_skb(struct qlcnic_adapter *adapter,
1260                 struct qlcnic_host_rds_ring *rds_ring,
1261                 struct qlcnic_rx_buffer *buffer)
1262 {
1263         struct sk_buff *skb;
1264         dma_addr_t dma;
1265         struct pci_dev *pdev = adapter->pdev;
1266
1267         buffer->skb = dev_alloc_skb(rds_ring->skb_size);
1268         if (!buffer->skb) {
1269                 adapter->stats.skb_alloc_failure++;
1270                 return -ENOMEM;
1271         }
1272
1273         skb = buffer->skb;
1274
1275         skb_reserve(skb, 2);
1276
1277         dma = pci_map_single(pdev, skb->data,
1278                         rds_ring->dma_size, PCI_DMA_FROMDEVICE);
1279
1280         if (pci_dma_mapping_error(pdev, dma)) {
1281                 adapter->stats.rx_dma_map_error++;
1282                 dev_kfree_skb_any(skb);
1283                 buffer->skb = NULL;
1284                 return -ENOMEM;
1285         }
1286
1287         buffer->skb = skb;
1288         buffer->dma = dma;
1289         buffer->state = QLCNIC_BUFFER_BUSY;
1290
1291         return 0;
1292 }
1293
1294 static struct sk_buff *qlcnic_process_rxbuf(struct qlcnic_adapter *adapter,
1295                 struct qlcnic_host_rds_ring *rds_ring, u16 index, u16 cksum)
1296 {
1297         struct qlcnic_rx_buffer *buffer;
1298         struct sk_buff *skb;
1299
1300         buffer = &rds_ring->rx_buf_arr[index];
1301
1302         pci_unmap_single(adapter->pdev, buffer->dma, rds_ring->dma_size,
1303                         PCI_DMA_FROMDEVICE);
1304
1305         skb = buffer->skb;
1306         if (!skb) {
1307                 adapter->stats.null_skb++;
1308                 goto no_skb;
1309         }
1310
1311         if (likely(adapter->rx_csum && cksum == STATUS_CKSUM_OK)) {
1312                 adapter->stats.csummed++;
1313                 skb->ip_summed = CHECKSUM_UNNECESSARY;
1314         } else {
1315                 skb->ip_summed = CHECKSUM_NONE;
1316         }
1317
1318         skb->dev = adapter->netdev;
1319
1320         buffer->skb = NULL;
1321 no_skb:
1322         buffer->state = QLCNIC_BUFFER_FREE;
1323         return skb;
1324 }
1325
1326 static struct qlcnic_rx_buffer *
1327 qlcnic_process_rcv(struct qlcnic_adapter *adapter,
1328                 struct qlcnic_host_sds_ring *sds_ring,
1329                 int ring, u64 sts_data0)
1330 {
1331         struct net_device *netdev = adapter->netdev;
1332         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1333         struct qlcnic_rx_buffer *buffer;
1334         struct sk_buff *skb;
1335         struct qlcnic_host_rds_ring *rds_ring;
1336         int index, length, cksum, pkt_offset;
1337
1338         if (unlikely(ring >= adapter->max_rds_rings))
1339                 return NULL;
1340
1341         rds_ring = &recv_ctx->rds_rings[ring];
1342
1343         index = qlcnic_get_sts_refhandle(sts_data0);
1344         if (unlikely(index >= rds_ring->num_desc))
1345                 return NULL;
1346
1347         buffer = &rds_ring->rx_buf_arr[index];
1348
1349         length = qlcnic_get_sts_totallength(sts_data0);
1350         cksum  = qlcnic_get_sts_status(sts_data0);
1351         pkt_offset = qlcnic_get_sts_pkt_offset(sts_data0);
1352
1353         skb = qlcnic_process_rxbuf(adapter, rds_ring, index, cksum);
1354         if (!skb)
1355                 return buffer;
1356
1357         if (length > rds_ring->skb_size)
1358                 skb_put(skb, rds_ring->skb_size);
1359         else
1360                 skb_put(skb, length);
1361
1362         if (pkt_offset)
1363                 skb_pull(skb, pkt_offset);
1364
1365         skb->truesize = skb->len + sizeof(struct sk_buff);
1366         skb->protocol = eth_type_trans(skb, netdev);
1367
1368         napi_gro_receive(&sds_ring->napi, skb);
1369
1370         adapter->stats.rx_pkts++;
1371         adapter->stats.rxbytes += length;
1372
1373         return buffer;
1374 }
1375
1376 #define QLC_TCP_HDR_SIZE            20
1377 #define QLC_TCP_TS_OPTION_SIZE      12
1378 #define QLC_TCP_TS_HDR_SIZE         (QLC_TCP_HDR_SIZE + QLC_TCP_TS_OPTION_SIZE)
1379
1380 static struct qlcnic_rx_buffer *
1381 qlcnic_process_lro(struct qlcnic_adapter *adapter,
1382                 struct qlcnic_host_sds_ring *sds_ring,
1383                 int ring, u64 sts_data0, u64 sts_data1)
1384 {
1385         struct net_device *netdev = adapter->netdev;
1386         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1387         struct qlcnic_rx_buffer *buffer;
1388         struct sk_buff *skb;
1389         struct qlcnic_host_rds_ring *rds_ring;
1390         struct iphdr *iph;
1391         struct tcphdr *th;
1392         bool push, timestamp;
1393         int l2_hdr_offset, l4_hdr_offset;
1394         int index;
1395         u16 lro_length, length, data_offset;
1396         u32 seq_number;
1397
1398         if (unlikely(ring > adapter->max_rds_rings))
1399                 return NULL;
1400
1401         rds_ring = &recv_ctx->rds_rings[ring];
1402
1403         index = qlcnic_get_lro_sts_refhandle(sts_data0);
1404         if (unlikely(index > rds_ring->num_desc))
1405                 return NULL;
1406
1407         buffer = &rds_ring->rx_buf_arr[index];
1408
1409         timestamp = qlcnic_get_lro_sts_timestamp(sts_data0);
1410         lro_length = qlcnic_get_lro_sts_length(sts_data0);
1411         l2_hdr_offset = qlcnic_get_lro_sts_l2_hdr_offset(sts_data0);
1412         l4_hdr_offset = qlcnic_get_lro_sts_l4_hdr_offset(sts_data0);
1413         push = qlcnic_get_lro_sts_push_flag(sts_data0);
1414         seq_number = qlcnic_get_lro_sts_seq_number(sts_data1);
1415
1416         skb = qlcnic_process_rxbuf(adapter, rds_ring, index, STATUS_CKSUM_OK);
1417         if (!skb)
1418                 return buffer;
1419
1420         if (timestamp)
1421                 data_offset = l4_hdr_offset + QLC_TCP_TS_HDR_SIZE;
1422         else
1423                 data_offset = l4_hdr_offset + QLC_TCP_HDR_SIZE;
1424
1425         skb_put(skb, lro_length + data_offset);
1426
1427         skb->truesize = skb->len + sizeof(struct sk_buff) + skb_headroom(skb);
1428
1429         skb_pull(skb, l2_hdr_offset);
1430         skb->protocol = eth_type_trans(skb, netdev);
1431
1432         iph = (struct iphdr *)skb->data;
1433         th = (struct tcphdr *)(skb->data + (iph->ihl << 2));
1434
1435         length = (iph->ihl << 2) + (th->doff << 2) + lro_length;
1436         iph->tot_len = htons(length);
1437         iph->check = 0;
1438         iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
1439         th->psh = push;
1440         th->seq = htonl(seq_number);
1441
1442         length = skb->len;
1443
1444         netif_receive_skb(skb);
1445
1446         adapter->stats.lro_pkts++;
1447         adapter->stats.lrobytes += length;
1448
1449         return buffer;
1450 }
1451
1452 int
1453 qlcnic_process_rcv_ring(struct qlcnic_host_sds_ring *sds_ring, int max)
1454 {
1455         struct qlcnic_adapter *adapter = sds_ring->adapter;
1456         struct list_head *cur;
1457         struct status_desc *desc;
1458         struct qlcnic_rx_buffer *rxbuf;
1459         u64 sts_data0, sts_data1;
1460
1461         int count = 0;
1462         int opcode, ring, desc_cnt;
1463         u32 consumer = sds_ring->consumer;
1464
1465         while (count < max) {
1466                 desc = &sds_ring->desc_head[consumer];
1467                 sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
1468
1469                 if (!(sts_data0 & STATUS_OWNER_HOST))
1470                         break;
1471
1472                 desc_cnt = qlcnic_get_sts_desc_cnt(sts_data0);
1473                 opcode = qlcnic_get_sts_opcode(sts_data0);
1474
1475                 switch (opcode) {
1476                 case QLCNIC_RXPKT_DESC:
1477                 case QLCNIC_OLD_RXPKT_DESC:
1478                 case QLCNIC_SYN_OFFLOAD:
1479                         ring = qlcnic_get_sts_type(sts_data0);
1480                         rxbuf = qlcnic_process_rcv(adapter, sds_ring,
1481                                         ring, sts_data0);
1482                         break;
1483                 case QLCNIC_LRO_DESC:
1484                         ring = qlcnic_get_lro_sts_type(sts_data0);
1485                         sts_data1 = le64_to_cpu(desc->status_desc_data[1]);
1486                         rxbuf = qlcnic_process_lro(adapter, sds_ring,
1487                                         ring, sts_data0, sts_data1);
1488                         break;
1489                 case QLCNIC_RESPONSE_DESC:
1490                         qlcnic_handle_fw_message(desc_cnt, consumer, sds_ring);
1491                 default:
1492                         goto skip;
1493                 }
1494
1495                 WARN_ON(desc_cnt > 1);
1496
1497                 if (rxbuf)
1498                         list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]);
1499                 else
1500                         adapter->stats.null_rxbuf++;
1501
1502 skip:
1503                 for (; desc_cnt > 0; desc_cnt--) {
1504                         desc = &sds_ring->desc_head[consumer];
1505                         desc->status_desc_data[0] =
1506                                 cpu_to_le64(STATUS_OWNER_PHANTOM);
1507                         consumer = get_next_index(consumer, sds_ring->num_desc);
1508                 }
1509                 count++;
1510         }
1511
1512         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1513                 struct qlcnic_host_rds_ring *rds_ring =
1514                         &adapter->recv_ctx.rds_rings[ring];
1515
1516                 if (!list_empty(&sds_ring->free_list[ring])) {
1517                         list_for_each(cur, &sds_ring->free_list[ring]) {
1518                                 rxbuf = list_entry(cur,
1519                                                 struct qlcnic_rx_buffer, list);
1520                                 qlcnic_alloc_rx_skb(adapter, rds_ring, rxbuf);
1521                         }
1522                         spin_lock(&rds_ring->lock);
1523                         list_splice_tail_init(&sds_ring->free_list[ring],
1524                                                 &rds_ring->free_list);
1525                         spin_unlock(&rds_ring->lock);
1526                 }
1527
1528                 qlcnic_post_rx_buffers_nodb(adapter, rds_ring);
1529         }
1530
1531         if (count) {
1532                 sds_ring->consumer = consumer;
1533                 writel(consumer, sds_ring->crb_sts_consumer);
1534         }
1535
1536         return count;
1537 }
1538
1539 void
1540 qlcnic_post_rx_buffers(struct qlcnic_adapter *adapter, u32 ringid,
1541         struct qlcnic_host_rds_ring *rds_ring)
1542 {
1543         struct rcv_desc *pdesc;
1544         struct qlcnic_rx_buffer *buffer;
1545         int producer, count = 0;
1546         struct list_head *head;
1547
1548         spin_lock(&rds_ring->lock);
1549
1550         producer = rds_ring->producer;
1551
1552         head = &rds_ring->free_list;
1553         while (!list_empty(head)) {
1554
1555                 buffer = list_entry(head->next, struct qlcnic_rx_buffer, list);
1556
1557                 if (!buffer->skb) {
1558                         if (qlcnic_alloc_rx_skb(adapter, rds_ring, buffer))
1559                                 break;
1560                 }
1561
1562                 count++;
1563                 list_del(&buffer->list);
1564
1565                 /* make a rcv descriptor  */
1566                 pdesc = &rds_ring->desc_head[producer];
1567                 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1568                 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1569                 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1570
1571                 producer = get_next_index(producer, rds_ring->num_desc);
1572         }
1573
1574         if (count) {
1575                 rds_ring->producer = producer;
1576                 writel((producer-1) & (rds_ring->num_desc-1),
1577                                 rds_ring->crb_rcv_producer);
1578         }
1579         spin_unlock(&rds_ring->lock);
1580 }
1581
1582 static void
1583 qlcnic_post_rx_buffers_nodb(struct qlcnic_adapter *adapter,
1584                 struct qlcnic_host_rds_ring *rds_ring)
1585 {
1586         struct rcv_desc *pdesc;
1587         struct qlcnic_rx_buffer *buffer;
1588         int producer, count = 0;
1589         struct list_head *head;
1590
1591         if (!spin_trylock(&rds_ring->lock))
1592                 return;
1593
1594         producer = rds_ring->producer;
1595
1596         head = &rds_ring->free_list;
1597         while (!list_empty(head)) {
1598
1599                 buffer = list_entry(head->next, struct qlcnic_rx_buffer, list);
1600
1601                 if (!buffer->skb) {
1602                         if (qlcnic_alloc_rx_skb(adapter, rds_ring, buffer))
1603                                 break;
1604                 }
1605
1606                 count++;
1607                 list_del(&buffer->list);
1608
1609                 /* make a rcv descriptor  */
1610                 pdesc = &rds_ring->desc_head[producer];
1611                 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1612                 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1613                 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1614
1615                 producer = get_next_index(producer, rds_ring->num_desc);
1616         }
1617
1618         if (count) {
1619                 rds_ring->producer = producer;
1620                 writel((producer - 1) & (rds_ring->num_desc - 1),
1621                                 rds_ring->crb_rcv_producer);
1622         }
1623         spin_unlock(&rds_ring->lock);
1624 }
1625
1626 static struct qlcnic_rx_buffer *
1627 qlcnic_process_rcv_diag(struct qlcnic_adapter *adapter,
1628                 struct qlcnic_host_sds_ring *sds_ring,
1629                 int ring, u64 sts_data0)
1630 {
1631         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1632         struct qlcnic_rx_buffer *buffer;
1633         struct sk_buff *skb;
1634         struct qlcnic_host_rds_ring *rds_ring;
1635         int index, length, cksum, pkt_offset;
1636
1637         if (unlikely(ring >= adapter->max_rds_rings))
1638                 return NULL;
1639
1640         rds_ring = &recv_ctx->rds_rings[ring];
1641
1642         index = qlcnic_get_sts_refhandle(sts_data0);
1643         if (unlikely(index >= rds_ring->num_desc))
1644                 return NULL;
1645
1646         buffer = &rds_ring->rx_buf_arr[index];
1647
1648         length = qlcnic_get_sts_totallength(sts_data0);
1649         cksum  = qlcnic_get_sts_status(sts_data0);
1650         pkt_offset = qlcnic_get_sts_pkt_offset(sts_data0);
1651
1652         skb = qlcnic_process_rxbuf(adapter, rds_ring, index, cksum);
1653         if (!skb)
1654                 return buffer;
1655
1656         skb_put(skb, rds_ring->skb_size);
1657
1658         if (pkt_offset)
1659                 skb_pull(skb, pkt_offset);
1660
1661         skb->truesize = skb->len + sizeof(struct sk_buff);
1662
1663         if (!qlcnic_check_loopback_buff(skb->data))
1664                 adapter->diag_cnt++;
1665
1666         dev_kfree_skb_any(skb);
1667         adapter->stats.rx_pkts++;
1668         adapter->stats.rxbytes += length;
1669
1670         return buffer;
1671 }
1672
1673 void
1674 qlcnic_process_rcv_ring_diag(struct qlcnic_host_sds_ring *sds_ring)
1675 {
1676         struct qlcnic_adapter *adapter = sds_ring->adapter;
1677         struct status_desc *desc;
1678         struct qlcnic_rx_buffer *rxbuf;
1679         u64 sts_data0;
1680
1681         int opcode, ring, desc_cnt;
1682         u32 consumer = sds_ring->consumer;
1683
1684         desc = &sds_ring->desc_head[consumer];
1685         sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
1686
1687         if (!(sts_data0 & STATUS_OWNER_HOST))
1688                 return;
1689
1690         desc_cnt = qlcnic_get_sts_desc_cnt(sts_data0);
1691         opcode = qlcnic_get_sts_opcode(sts_data0);
1692
1693         ring = qlcnic_get_sts_type(sts_data0);
1694         rxbuf = qlcnic_process_rcv_diag(adapter, sds_ring,
1695                                         ring, sts_data0);
1696
1697         desc->status_desc_data[0] = cpu_to_le64(STATUS_OWNER_PHANTOM);
1698         consumer = get_next_index(consumer, sds_ring->num_desc);
1699
1700         sds_ring->consumer = consumer;
1701         writel(consumer, sds_ring->crb_sts_consumer);
1702 }
1703
1704 void
1705 qlcnic_fetch_mac(struct qlcnic_adapter *adapter, u32 off1, u32 off2,
1706                         u8 alt_mac, u8 *mac)
1707 {
1708         u32 mac_low, mac_high;
1709         int i;
1710
1711         mac_low = QLCRD32(adapter, off1);
1712         mac_high = QLCRD32(adapter, off2);
1713
1714         if (alt_mac) {
1715                 mac_low |= (mac_low >> 16) | (mac_high << 16);
1716                 mac_high >>= 16;
1717         }
1718
1719         for (i = 0; i < 2; i++)
1720                 mac[i] = (u8)(mac_high >> ((1 - i) * 8));
1721         for (i = 2; i < 6; i++)
1722                 mac[i] = (u8)(mac_low >> ((5 - i) * 8));
1723 }