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