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, 0xffffffff);
 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         val = QLCRD32(adapter, QLCNIC_CRB_DEV_PARTITION_INFO);
 524         val = (val >> (adapter->portnum * 4)) & 0xf;
 525
 526         if ((val & 0x3) != 1) {
 527                 dev_err(&adapter->pdev->dev, "Not an Ethernet NIC func=%u\n",
 528                                                                         val);
 529                 return -EIO;
 530         }
 531
 532         adapter->physical_port = (val >> 2);
 533
 534         if (qlcnic_rom_fast_read(adapter, QLCNIC_ROM_DEV_INIT_TIMEOUT, &timeo))
 535                 timeo = 30;
 536
 537         adapter->dev_init_timeo = timeo;
 538
 539         if (qlcnic_rom_fast_read(adapter, QLCNIC_ROM_DRV_RESET_TIMEOUT, &timeo))
 540                 timeo = 10;
 541
 542         adapter->reset_ack_timeo = timeo;
 543
 544         return 0;
 545 }
 546
 547 static int
 548 qlcnic_has_mn(struct qlcnic_adapter *adapter)
 549 {
 550         u32 capability, flashed_ver;
 551         capability = 0;
 552
 553         qlcnic_rom_fast_read(adapter,
 554                         QLCNIC_FW_VERSION_OFFSET, (int *)&flashed_ver);
 555         flashed_ver = QLCNIC_DECODE_VERSION(flashed_ver);
 556
 557         capability = QLCRD32(adapter, QLCNIC_PEG_TUNE_CAPABILITY);
 558         if (capability & QLCNIC_PEG_TUNE_MN_PRESENT)
 559                 return 1;
 560
 561         return 0;
 562 }
 563
 564 static
 565 struct uni_table_desc *qlcnic_get_table_desc(const u8 *unirom, int section)
 566 {
 567         u32 i;
 568         struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
 569         __le32 entries = cpu_to_le32(directory->num_entries);
 570
 571         for (i = 0; i < entries; i++) {
 572
 573                 __le32 offs = cpu_to_le32(directory->findex) +
 574                                 (i * cpu_to_le32(directory->entry_size));
 575                 __le32 tab_type = cpu_to_le32(*((u32 *)&unirom[offs] + 8));
 576
 577                 if (tab_type == section)
 578                         return (struct uni_table_desc *) &unirom[offs];
 579         }
 580
 581         return NULL;
 582 }
 583
 584 #define FILEHEADER_SIZE (14 * 4)
 585
 586 static int
 587 qlcnic_validate_header(struct qlcnic_adapter *adapter)
 588 {
 589         const u8 *unirom = adapter->fw->data;
 590         struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
 591         __le32 fw_file_size = adapter->fw->size;
 592         __le32 entries;
 593         __le32 entry_size;
 594         __le32 tab_size;
 595
 596         if (fw_file_size < FILEHEADER_SIZE)
 597                 return -EINVAL;
 598
 599         entries = cpu_to_le32(directory->num_entries);
 600         entry_size = cpu_to_le32(directory->entry_size);
 601         tab_size = cpu_to_le32(directory->findex) + (entries * entry_size);
 602
 603         if (fw_file_size < tab_size)
 604                 return -EINVAL;
 605
 606         return 0;
 607 }
 608
 609 static int
 610 qlcnic_validate_bootld(struct qlcnic_adapter *adapter)
 611 {
 612         struct uni_table_desc *tab_desc;
 613         struct uni_data_desc *descr;
 614         const u8 *unirom = adapter->fw->data;
 615         int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
 616                                 QLCNIC_UNI_BOOTLD_IDX_OFF));
 617         __le32 offs;
 618         __le32 tab_size;
 619         __le32 data_size;
 620
 621         tab_desc = qlcnic_get_table_desc(unirom, QLCNIC_UNI_DIR_SECT_BOOTLD);
 622
 623         if (!tab_desc)
 624                 return -EINVAL;
 625
 626         tab_size = cpu_to_le32(tab_desc->findex) +
 627                         (cpu_to_le32(tab_desc->entry_size) * (idx + 1));
 628
 629         if (adapter->fw->size < tab_size)
 630                 return -EINVAL;
 631
 632         offs = cpu_to_le32(tab_desc->findex) +
 633                 (cpu_to_le32(tab_desc->entry_size) * (idx));
 634         descr = (struct uni_data_desc *)&unirom[offs];
 635
 636         data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size);
 637
 638         if (adapter->fw->size < data_size)
 639                 return -EINVAL;
 640
 641         return 0;
 642 }
 643
 644 static int
 645 qlcnic_validate_fw(struct qlcnic_adapter *adapter)
 646 {
 647         struct uni_table_desc *tab_desc;
 648         struct uni_data_desc *descr;
 649         const u8 *unirom = adapter->fw->data;
 650         int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
 651                                 QLCNIC_UNI_FIRMWARE_IDX_OFF));
 652         __le32 offs;
 653         __le32 tab_size;
 654         __le32 data_size;
 655
 656         tab_desc = qlcnic_get_table_desc(unirom, QLCNIC_UNI_DIR_SECT_FW);
 657
 658         if (!tab_desc)
 659                 return -EINVAL;
 660
 661         tab_size = cpu_to_le32(tab_desc->findex) +
 662                         (cpu_to_le32(tab_desc->entry_size) * (idx + 1));
 663
 664         if (adapter->fw->size < tab_size)
 665                 return -EINVAL;
 666
 667         offs = cpu_to_le32(tab_desc->findex) +
 668                 (cpu_to_le32(tab_desc->entry_size) * (idx));
 669         descr = (struct uni_data_desc *)&unirom[offs];
 670         data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size);
 671
 672         if (adapter->fw->size < data_size)
 673                 return -EINVAL;
 674
 675         return 0;
 676 }
 677
 678 static int
 679 qlcnic_validate_product_offs(struct qlcnic_adapter *adapter)
 680 {
 681         struct uni_table_desc *ptab_descr;
 682         const u8 *unirom = adapter->fw->data;
 683         int mn_present = qlcnic_has_mn(adapter);
 684         __le32 entries;
 685         __le32 entry_size;
 686         __le32 tab_size;
 687         u32 i;
 688
 689         ptab_descr = qlcnic_get_table_desc(unirom,
 690                                 QLCNIC_UNI_DIR_SECT_PRODUCT_TBL);
 691         if (!ptab_descr)
 692                 return -EINVAL;
 693
 694         entries = cpu_to_le32(ptab_descr->num_entries);
 695         entry_size = cpu_to_le32(ptab_descr->entry_size);
 696         tab_size = cpu_to_le32(ptab_descr->findex) + (entries * entry_size);
 697
 698         if (adapter->fw->size < tab_size)
 699                 return -EINVAL;
 700
 701 nomn:
 702         for (i = 0; i < entries; i++) {
 703
 704                 __le32 flags, file_chiprev, offs;
 705                 u8 chiprev = adapter->ahw.revision_id;
 706                 u32 flagbit;
 707
 708                 offs = cpu_to_le32(ptab_descr->findex) +
 709                                 (i * cpu_to_le32(ptab_descr->entry_size));
 710                 flags = cpu_to_le32(*((int *)&unirom[offs] +
 711                                                 QLCNIC_UNI_FLAGS_OFF));
 712                 file_chiprev = cpu_to_le32(*((int *)&unirom[offs] +
 713                                                 QLCNIC_UNI_CHIP_REV_OFF));
 714
 715                 flagbit = mn_present ? 1 : 2;
 716
 717                 if ((chiprev == file_chiprev) &&
 718                                         ((1ULL << flagbit) & flags)) {
 719                         adapter->file_prd_off = offs;
 720                         return 0;
 721                 }
 722         }
 723         if (mn_present) {
 724                 mn_present = 0;
 725                 goto nomn;
 726         }
 727         return -EINVAL;
 728 }
 729
 730 static int
 731 qlcnic_validate_unified_romimage(struct qlcnic_adapter *adapter)
 732 {
 733         if (qlcnic_validate_header(adapter)) {
 734                 dev_err(&adapter->pdev->dev,
 735                                 "unified image: header validation failed\n");
 736                 return -EINVAL;
 737         }
 738
 739         if (qlcnic_validate_product_offs(adapter)) {
 740                 dev_err(&adapter->pdev->dev,
 741                                 "unified image: product validation failed\n");
 742                 return -EINVAL;
 743         }
 744
 745         if (qlcnic_validate_bootld(adapter)) {
 746                 dev_err(&adapter->pdev->dev,
 747                                 "unified image: bootld validation failed\n");
 748                 return -EINVAL;
 749         }
 750
 751         if (qlcnic_validate_fw(adapter)) {
 752                 dev_err(&adapter->pdev->dev,
 753                                 "unified image: firmware validation failed\n");
 754                 return -EINVAL;
 755         }
 756
 757         return 0;
 758 }
 759
 760 static
 761 struct uni_data_desc *qlcnic_get_data_desc(struct qlcnic_adapter *adapter,
 762                         u32 section, u32 idx_offset)
 763 {
 764         const u8 *unirom = adapter->fw->data;
 765         int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
 766                                                                 idx_offset));
 767         struct uni_table_desc *tab_desc;
 768         __le32 offs;
 769
 770         tab_desc = qlcnic_get_table_desc(unirom, section);
 771
 772         if (tab_desc == NULL)
 773                 return NULL;
 774
 775         offs = cpu_to_le32(tab_desc->findex) +
 776                         (cpu_to_le32(tab_desc->entry_size) * idx);
 777
 778         return (struct uni_data_desc *)&unirom[offs];
 779 }
 780
 781 static u8 *
 782 qlcnic_get_bootld_offs(struct qlcnic_adapter *adapter)
 783 {
 784         u32 offs = QLCNIC_BOOTLD_START;
 785
 786         if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
 787                 offs = cpu_to_le32((qlcnic_get_data_desc(adapter,
 788                                         QLCNIC_UNI_DIR_SECT_BOOTLD,
 789                                         QLCNIC_UNI_BOOTLD_IDX_OFF))->findex);
 790
 791         return (u8 *)&adapter->fw->data[offs];
 792 }
 793
 794 static u8 *
 795 qlcnic_get_fw_offs(struct qlcnic_adapter *adapter)
 796 {
 797         u32 offs = QLCNIC_IMAGE_START;
 798
 799         if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
 800                 offs = cpu_to_le32((qlcnic_get_data_desc(adapter,
 801                                         QLCNIC_UNI_DIR_SECT_FW,
 802                                         QLCNIC_UNI_FIRMWARE_IDX_OFF))->findex);
 803
 804         return (u8 *)&adapter->fw->data[offs];
 805 }
 806
 807 static __le32
 808 qlcnic_get_fw_size(struct qlcnic_adapter *adapter)
 809 {
 810         if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
 811                 return cpu_to_le32((qlcnic_get_data_desc(adapter,
 812                                         QLCNIC_UNI_DIR_SECT_FW,
 813                                         QLCNIC_UNI_FIRMWARE_IDX_OFF))->size);
 814         else
 815                 return cpu_to_le32(
 816                         *(u32 *)&adapter->fw->data[QLCNIC_FW_SIZE_OFFSET]);
 817 }
 818
 819 static __le32
 820 qlcnic_get_fw_version(struct qlcnic_adapter *adapter)
 821 {
 822         struct uni_data_desc *fw_data_desc;
 823         const struct firmware *fw = adapter->fw;
 824         __le32 major, minor, sub;
 825         const u8 *ver_str;
 826         int i, ret;
 827
 828         if (adapter->fw_type != QLCNIC_UNIFIED_ROMIMAGE)
 829                 return cpu_to_le32(*(u32 *)&fw->data[QLCNIC_FW_VERSION_OFFSET]);
 830
 831         fw_data_desc = qlcnic_get_data_desc(adapter, QLCNIC_UNI_DIR_SECT_FW,
 832                         QLCNIC_UNI_FIRMWARE_IDX_OFF);
 833         ver_str = fw->data + cpu_to_le32(fw_data_desc->findex) +
 834                 cpu_to_le32(fw_data_desc->size) - 17;
 835
 836         for (i = 0; i < 12; i++) {
 837                 if (!strncmp(&ver_str[i], "REV=", 4)) {
 838                         ret = sscanf(&ver_str[i+4], "%u.%u.%u ",
 839                                         &major, &minor, &sub);
 840                         if (ret != 3)
 841                                 return 0;
 842                         else
 843                                 return major + (minor << 8) + (sub << 16);
 844                 }
 845         }
 846
 847         return 0;
 848 }
 849
 850 static __le32
 851 qlcnic_get_bios_version(struct qlcnic_adapter *adapter)
 852 {
 853         const struct firmware *fw = adapter->fw;
 854         __le32 bios_ver, prd_off = adapter->file_prd_off;
 855
 856         if (adapter->fw_type != QLCNIC_UNIFIED_ROMIMAGE)
 857                 return cpu_to_le32(
 858                         *(u32 *)&fw->data[QLCNIC_BIOS_VERSION_OFFSET]);
 859
 860         bios_ver = cpu_to_le32(*((u32 *) (&fw->data[prd_off])
 861                                 + QLCNIC_UNI_BIOS_VERSION_OFF));
 862
 863         return (bios_ver << 16) + ((bios_ver >> 8) & 0xff00) + (bios_ver >> 24);
 864 }
 865
 866 int
 867 qlcnic_need_fw_reset(struct qlcnic_adapter *adapter)
 868 {
 869         u32 count, old_count;
 870         u32 val, version, major, minor, build;
 871         int i, timeout;
 872
 873         if (adapter->need_fw_reset)
 874                 return 1;
 875
 876         /* last attempt had failed */
 877         if (QLCRD32(adapter, CRB_CMDPEG_STATE) == PHAN_INITIALIZE_FAILED)
 878                 return 1;
 879
 880         old_count = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
 881
 882         for (i = 0; i < 10; i++) {
 883
 884                 timeout = msleep_interruptible(200);
 885                 if (timeout) {
 886                         QLCWR32(adapter, CRB_CMDPEG_STATE,
 887                                         PHAN_INITIALIZE_FAILED);
 888                         return -EINTR;
 889                 }
 890
 891                 count = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
 892                 if (count != old_count)
 893                         break;
 894         }
 895
 896         /* firmware is dead */
 897         if (count == old_count)
 898                 return 1;
 899
 900         /* check if we have got newer or different file firmware */
 901         if (adapter->fw) {
 902
 903                 val = qlcnic_get_fw_version(adapter);
 904
 905                 version = QLCNIC_DECODE_VERSION(val);
 906
 907                 major = QLCRD32(adapter, QLCNIC_FW_VERSION_MAJOR);
 908                 minor = QLCRD32(adapter, QLCNIC_FW_VERSION_MINOR);
 909                 build = QLCRD32(adapter, QLCNIC_FW_VERSION_SUB);
 910
 911                 if (version > QLCNIC_VERSION_CODE(major, minor, build))
 912                         return 1;
 913         }
 914
 915         return 0;
 916 }
 917
 918 static const char *fw_name[] = {
 919         QLCNIC_UNIFIED_ROMIMAGE_NAME,
 920         QLCNIC_FLASH_ROMIMAGE_NAME,
 921 };
 922
 923 int
 924 qlcnic_load_firmware(struct qlcnic_adapter *adapter)
 925 {
 926         u64 *ptr64;
 927         u32 i, flashaddr, size;
 928         const struct firmware *fw = adapter->fw;
 929         struct pci_dev *pdev = adapter->pdev;
 930
 931         dev_info(&pdev->dev, "loading firmware from %s\n",
 932                         fw_name[adapter->fw_type]);
 933
 934         if (fw) {
 935                 __le64 data;
 936
 937                 size = (QLCNIC_IMAGE_START - QLCNIC_BOOTLD_START) / 8;
 938
 939                 ptr64 = (u64 *)qlcnic_get_bootld_offs(adapter);
 940                 flashaddr = QLCNIC_BOOTLD_START;
 941
 942                 for (i = 0; i < size; i++) {
 943                         data = cpu_to_le64(ptr64[i]);
 944
 945                         if (qlcnic_pci_mem_write_2M(adapter, flashaddr, data))
 946                                 return -EIO;
 947
 948                         flashaddr += 8;
 949                 }
 950
 951                 size = (__force u32)qlcnic_get_fw_size(adapter) / 8;
 952
 953                 ptr64 = (u64 *)qlcnic_get_fw_offs(adapter);
 954                 flashaddr = QLCNIC_IMAGE_START;
 955
 956                 for (i = 0; i < size; i++) {
 957                         data = cpu_to_le64(ptr64[i]);
 958
 959                         if (qlcnic_pci_mem_write_2M(adapter,
 960                                                 flashaddr, data))
 961                                 return -EIO;
 962
 963                         flashaddr += 8;
 964                 }
 965
 966                 size = (__force u32)qlcnic_get_fw_size(adapter) % 8;
 967                 if (size) {
 968                         data = cpu_to_le64(ptr64[i]);
 969
 970                         if (qlcnic_pci_mem_write_2M(adapter,
 971                                                 flashaddr, data))
 972                                 return -EIO;
 973                 }
 974
 975         } else {
 976                 u64 data;
 977                 u32 hi, lo;
 978
 979                 size = (QLCNIC_IMAGE_START - QLCNIC_BOOTLD_START) / 8;
 980                 flashaddr = QLCNIC_BOOTLD_START;
 981
 982                 for (i = 0; i < size; i++) {
 983                         if (qlcnic_rom_fast_read(adapter,
 984                                         flashaddr, (int *)&lo) != 0)
 985                                 return -EIO;
 986                         if (qlcnic_rom_fast_read(adapter,
 987                                         flashaddr + 4, (int *)&hi) != 0)
 988                                 return -EIO;
 989
 990                         data = (((u64)hi << 32) | lo);
 991
 992                         if (qlcnic_pci_mem_write_2M(adapter,
 993                                                 flashaddr, data))
 994                                 return -EIO;
 995
 996                         flashaddr += 8;
 997                 }
 998         }
 999         msleep(1);
1000
1001         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x18, 0x1020);
1002         QLCWR32(adapter, QLCNIC_ROMUSB_GLB_SW_RESET, 0x80001e);
1003         return 0;
1004 }
1005
1006 static int
1007 qlcnic_validate_firmware(struct qlcnic_adapter *adapter)
1008 {
1009         __le32 val;
1010         u32 ver, min_ver, bios, min_size;
1011         struct pci_dev *pdev = adapter->pdev;
1012         const struct firmware *fw = adapter->fw;
1013         u8 fw_type = adapter->fw_type;
1014
1015         if (fw_type == QLCNIC_UNIFIED_ROMIMAGE) {
1016                 if (qlcnic_validate_unified_romimage(adapter))
1017                         return -EINVAL;
1018
1019                 min_size = QLCNIC_UNI_FW_MIN_SIZE;
1020         } else {
1021                 val = cpu_to_le32(*(u32 *)&fw->data[QLCNIC_FW_MAGIC_OFFSET]);
1022                 if ((__force u32)val != QLCNIC_BDINFO_MAGIC)
1023                         return -EINVAL;
1024
1025                 min_size = QLCNIC_FW_MIN_SIZE;
1026         }
1027
1028         if (fw->size < min_size)
1029                 return -EINVAL;
1030
1031         val = qlcnic_get_fw_version(adapter);
1032
1033         min_ver = QLCNIC_VERSION_CODE(4, 0, 216);
1034
1035         ver = QLCNIC_DECODE_VERSION(val);
1036
1037         if ((_major(ver) > _QLCNIC_LINUX_MAJOR) || (ver < min_ver)) {
1038                 dev_err(&pdev->dev,
1039                                 "%s: firmware version %d.%d.%d unsupported\n",
1040                 fw_name[fw_type], _major(ver), _minor(ver), _build(ver));
1041                 return -EINVAL;
1042         }
1043
1044         val = qlcnic_get_bios_version(adapter);
1045         qlcnic_rom_fast_read(adapter, QLCNIC_BIOS_VERSION_OFFSET, (int *)&bios);
1046         if ((__force u32)val != bios) {
1047                 dev_err(&pdev->dev, "%s: firmware bios is incompatible\n",
1048                                 fw_name[fw_type]);
1049                 return -EINVAL;
1050         }
1051
1052         /* check if flashed firmware is newer */
1053         if (qlcnic_rom_fast_read(adapter,
1054                         QLCNIC_FW_VERSION_OFFSET, (int *)&val))
1055                 return -EIO;
1056
1057         val = QLCNIC_DECODE_VERSION(val);
1058         if (val > ver) {
1059                 dev_info(&pdev->dev, "%s: firmware is older than flash\n",
1060                                 fw_name[fw_type]);
1061                 return -EINVAL;
1062         }
1063
1064         QLCWR32(adapter, QLCNIC_CAM_RAM(0x1fc), QLCNIC_BDINFO_MAGIC);
1065         return 0;
1066 }
1067
1068 static void
1069 qlcnic_get_next_fwtype(struct qlcnic_adapter *adapter)
1070 {
1071         u8 fw_type;
1072
1073         switch (adapter->fw_type) {
1074         case QLCNIC_UNKNOWN_ROMIMAGE:
1075                 fw_type = QLCNIC_UNIFIED_ROMIMAGE;
1076                 break;
1077
1078         case QLCNIC_UNIFIED_ROMIMAGE:
1079         default:
1080                 fw_type = QLCNIC_FLASH_ROMIMAGE;
1081                 break;
1082         }
1083
1084         adapter->fw_type = fw_type;
1085 }
1086
1087
1088
1089 void qlcnic_request_firmware(struct qlcnic_adapter *adapter)
1090 {
1091         struct pci_dev *pdev = adapter->pdev;
1092         int rc;
1093
1094         adapter->fw_type = QLCNIC_UNKNOWN_ROMIMAGE;
1095
1096 next:
1097         qlcnic_get_next_fwtype(adapter);
1098
1099         if (adapter->fw_type == QLCNIC_FLASH_ROMIMAGE) {
1100                 adapter->fw = NULL;
1101         } else {
1102                 rc = request_firmware(&adapter->fw,
1103                                 fw_name[adapter->fw_type], &pdev->dev);
1104                 if (rc != 0)
1105                         goto next;
1106
1107                 rc = qlcnic_validate_firmware(adapter);
1108                 if (rc != 0) {
1109                         release_firmware(adapter->fw);
1110                         msleep(1);
1111                         goto next;
1112                 }
1113         }
1114 }
1115
1116
1117 void
1118 qlcnic_release_firmware(struct qlcnic_adapter *adapter)
1119 {
1120         if (adapter->fw)
1121                 release_firmware(adapter->fw);
1122         adapter->fw = NULL;
1123 }
1124
1125 int qlcnic_phantom_init(struct qlcnic_adapter *adapter)
1126 {
1127         u32 val;
1128         int retries = 60;
1129
1130         do {
1131                 val = QLCRD32(adapter, CRB_CMDPEG_STATE);
1132
1133                 switch (val) {
1134                 case PHAN_INITIALIZE_COMPLETE:
1135                 case PHAN_INITIALIZE_ACK:
1136                         return 0;
1137                 case PHAN_INITIALIZE_FAILED:
1138                         goto out_err;
1139                 default:
1140                         break;
1141                 }
1142
1143                 msleep(500);
1144
1145         } while (--retries);
1146
1147         QLCWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
1148
1149 out_err:
1150         dev_err(&adapter->pdev->dev, "firmware init failed\n");
1151         return -EIO;
1152 }
1153
1154 static int
1155 qlcnic_receive_peg_ready(struct qlcnic_adapter *adapter)
1156 {
1157         u32 val;
1158         int retries = 2000;
1159
1160         do {
1161                 val = QLCRD32(adapter, CRB_RCVPEG_STATE);
1162
1163                 if (val == PHAN_PEG_RCV_INITIALIZED)
1164                         return 0;
1165
1166                 msleep(10);
1167
1168         } while (--retries);
1169
1170         if (!retries) {
1171                 dev_err(&adapter->pdev->dev, "Receive Peg initialization not "
1172                               "complete, state: 0x%x.\n", val);
1173                 return -EIO;
1174         }
1175
1176         return 0;
1177 }
1178
1179 int qlcnic_init_firmware(struct qlcnic_adapter *adapter)
1180 {
1181         int err;
1182
1183         err = qlcnic_receive_peg_ready(adapter);
1184         if (err)
1185                 return err;
1186
1187         QLCWR32(adapter, CRB_NIC_CAPABILITIES_HOST, INTR_SCHEME_PERPORT);
1188         QLCWR32(adapter, CRB_MPORT_MODE, MPORT_MULTI_FUNCTION_MODE);
1189         QLCWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_ACK);
1190
1191         return err;
1192 }
1193
1194 static void
1195 qlcnic_handle_linkevent(struct qlcnic_adapter *adapter,
1196                                 struct qlcnic_fw_msg *msg)
1197 {
1198         u32 cable_OUI;
1199         u16 cable_len;
1200         u16 link_speed;
1201         u8  link_status, module, duplex, autoneg;
1202         struct net_device *netdev = adapter->netdev;
1203
1204         adapter->has_link_events = 1;
1205
1206         cable_OUI = msg->body[1] & 0xffffffff;
1207         cable_len = (msg->body[1] >> 32) & 0xffff;
1208         link_speed = (msg->body[1] >> 48) & 0xffff;
1209
1210         link_status = msg->body[2] & 0xff;
1211         duplex = (msg->body[2] >> 16) & 0xff;
1212         autoneg = (msg->body[2] >> 24) & 0xff;
1213
1214         module = (msg->body[2] >> 8) & 0xff;
1215         if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLE)
1216                 dev_info(&netdev->dev, "unsupported cable: OUI 0x%x, "
1217                                 "length %d\n", cable_OUI, cable_len);
1218         else if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLELEN)
1219                 dev_info(&netdev->dev, "unsupported cable length %d\n",
1220                                 cable_len);
1221
1222         qlcnic_advert_link_change(adapter, link_status);
1223
1224         if (duplex == LINKEVENT_FULL_DUPLEX)
1225                 adapter->link_duplex = DUPLEX_FULL;
1226         else
1227                 adapter->link_duplex = DUPLEX_HALF;
1228
1229         adapter->module_type = module;
1230         adapter->link_autoneg = autoneg;
1231         adapter->link_speed = link_speed;
1232 }
1233
1234 static void
1235 qlcnic_handle_fw_message(int desc_cnt, int index,
1236                 struct qlcnic_host_sds_ring *sds_ring)
1237 {
1238         struct qlcnic_fw_msg msg;
1239         struct status_desc *desc;
1240         int i = 0, opcode;
1241
1242         while (desc_cnt > 0 && i < 8) {
1243                 desc = &sds_ring->desc_head[index];
1244                 msg.words[i++] = le64_to_cpu(desc->status_desc_data[0]);
1245                 msg.words[i++] = le64_to_cpu(desc->status_desc_data[1]);
1246
1247                 index = get_next_index(index, sds_ring->num_desc);
1248                 desc_cnt--;
1249         }
1250
1251         opcode = qlcnic_get_nic_msg_opcode(msg.body[0]);
1252         switch (opcode) {
1253         case QLCNIC_C2H_OPCODE_GET_LINKEVENT_RESPONSE:
1254                 qlcnic_handle_linkevent(sds_ring->adapter, &msg);
1255                 break;
1256         default:
1257                 break;
1258         }
1259 }
1260
1261 static int
1262 qlcnic_alloc_rx_skb(struct qlcnic_adapter *adapter,
1263                 struct qlcnic_host_rds_ring *rds_ring,
1264                 struct qlcnic_rx_buffer *buffer)
1265 {
1266         struct sk_buff *skb;
1267         dma_addr_t dma;
1268         struct pci_dev *pdev = adapter->pdev;
1269
1270         buffer->skb = dev_alloc_skb(rds_ring->skb_size);
1271         if (!buffer->skb) {
1272                 adapter->stats.skb_alloc_failure++;
1273                 return -ENOMEM;
1274         }
1275
1276         skb = buffer->skb;
1277
1278         skb_reserve(skb, 2);
1279
1280         dma = pci_map_single(pdev, skb->data,
1281                         rds_ring->dma_size, PCI_DMA_FROMDEVICE);
1282
1283         if (pci_dma_mapping_error(pdev, dma)) {
1284                 adapter->stats.rx_dma_map_error++;
1285                 dev_kfree_skb_any(skb);
1286                 buffer->skb = NULL;
1287                 return -ENOMEM;
1288         }
1289
1290         buffer->skb = skb;
1291         buffer->dma = dma;
1292         buffer->state = QLCNIC_BUFFER_BUSY;
1293
1294         return 0;
1295 }
1296
1297 static struct sk_buff *qlcnic_process_rxbuf(struct qlcnic_adapter *adapter,
1298                 struct qlcnic_host_rds_ring *rds_ring, u16 index, u16 cksum)
1299 {
1300         struct qlcnic_rx_buffer *buffer;
1301         struct sk_buff *skb;
1302
1303         buffer = &rds_ring->rx_buf_arr[index];
1304
1305         pci_unmap_single(adapter->pdev, buffer->dma, rds_ring->dma_size,
1306                         PCI_DMA_FROMDEVICE);
1307
1308         skb = buffer->skb;
1309         if (!skb) {
1310                 adapter->stats.null_skb++;
1311                 goto no_skb;
1312         }
1313
1314         if (likely(adapter->rx_csum && cksum == STATUS_CKSUM_OK)) {
1315                 adapter->stats.csummed++;
1316                 skb->ip_summed = CHECKSUM_UNNECESSARY;
1317         } else {
1318                 skb->ip_summed = CHECKSUM_NONE;
1319         }
1320
1321         skb->dev = adapter->netdev;
1322
1323         buffer->skb = NULL;
1324 no_skb:
1325         buffer->state = QLCNIC_BUFFER_FREE;
1326         return skb;
1327 }
1328
1329 static struct qlcnic_rx_buffer *
1330 qlcnic_process_rcv(struct qlcnic_adapter *adapter,
1331                 struct qlcnic_host_sds_ring *sds_ring,
1332                 int ring, u64 sts_data0)
1333 {
1334         struct net_device *netdev = adapter->netdev;
1335         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1336         struct qlcnic_rx_buffer *buffer;
1337         struct sk_buff *skb;
1338         struct qlcnic_host_rds_ring *rds_ring;
1339         int index, length, cksum, pkt_offset;
1340
1341         if (unlikely(ring >= adapter->max_rds_rings))
1342                 return NULL;
1343
1344         rds_ring = &recv_ctx->rds_rings[ring];
1345
1346         index = qlcnic_get_sts_refhandle(sts_data0);
1347         if (unlikely(index >= rds_ring->num_desc))
1348                 return NULL;
1349
1350         buffer = &rds_ring->rx_buf_arr[index];
1351
1352         length = qlcnic_get_sts_totallength(sts_data0);
1353         cksum  = qlcnic_get_sts_status(sts_data0);
1354         pkt_offset = qlcnic_get_sts_pkt_offset(sts_data0);
1355
1356         skb = qlcnic_process_rxbuf(adapter, rds_ring, index, cksum);
1357         if (!skb)
1358                 return buffer;
1359
1360         if (length > rds_ring->skb_size)
1361                 skb_put(skb, rds_ring->skb_size);
1362         else
1363                 skb_put(skb, length);
1364
1365         if (pkt_offset)
1366                 skb_pull(skb, pkt_offset);
1367
1368         skb->truesize = skb->len + sizeof(struct sk_buff);
1369         skb->protocol = eth_type_trans(skb, netdev);
1370
1371         napi_gro_receive(&sds_ring->napi, skb);
1372
1373         adapter->stats.rx_pkts++;
1374         adapter->stats.rxbytes += length;
1375
1376         return buffer;
1377 }
1378
1379 #define QLC_TCP_HDR_SIZE            20
1380 #define QLC_TCP_TS_OPTION_SIZE      12
1381 #define QLC_TCP_TS_HDR_SIZE         (QLC_TCP_HDR_SIZE + QLC_TCP_TS_OPTION_SIZE)
1382
1383 static struct qlcnic_rx_buffer *
1384 qlcnic_process_lro(struct qlcnic_adapter *adapter,
1385                 struct qlcnic_host_sds_ring *sds_ring,
1386                 int ring, u64 sts_data0, u64 sts_data1)
1387 {
1388         struct net_device *netdev = adapter->netdev;
1389         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1390         struct qlcnic_rx_buffer *buffer;
1391         struct sk_buff *skb;
1392         struct qlcnic_host_rds_ring *rds_ring;
1393         struct iphdr *iph;
1394         struct tcphdr *th;
1395         bool push, timestamp;
1396         int l2_hdr_offset, l4_hdr_offset;
1397         int index;
1398         u16 lro_length, length, data_offset;
1399         u32 seq_number;
1400
1401         if (unlikely(ring > adapter->max_rds_rings))
1402                 return NULL;
1403
1404         rds_ring = &recv_ctx->rds_rings[ring];
1405
1406         index = qlcnic_get_lro_sts_refhandle(sts_data0);
1407         if (unlikely(index > rds_ring->num_desc))
1408                 return NULL;
1409
1410         buffer = &rds_ring->rx_buf_arr[index];
1411
1412         timestamp = qlcnic_get_lro_sts_timestamp(sts_data0);
1413         lro_length = qlcnic_get_lro_sts_length(sts_data0);
1414         l2_hdr_offset = qlcnic_get_lro_sts_l2_hdr_offset(sts_data0);
1415         l4_hdr_offset = qlcnic_get_lro_sts_l4_hdr_offset(sts_data0);
1416         push = qlcnic_get_lro_sts_push_flag(sts_data0);
1417         seq_number = qlcnic_get_lro_sts_seq_number(sts_data1);
1418
1419         skb = qlcnic_process_rxbuf(adapter, rds_ring, index, STATUS_CKSUM_OK);
1420         if (!skb)
1421                 return buffer;
1422
1423         if (timestamp)
1424                 data_offset = l4_hdr_offset + QLC_TCP_TS_HDR_SIZE;
1425         else
1426                 data_offset = l4_hdr_offset + QLC_TCP_HDR_SIZE;
1427
1428         skb_put(skb, lro_length + data_offset);
1429
1430         skb->truesize = skb->len + sizeof(struct sk_buff) + skb_headroom(skb);
1431
1432         skb_pull(skb, l2_hdr_offset);
1433         skb->protocol = eth_type_trans(skb, netdev);
1434
1435         iph = (struct iphdr *)skb->data;
1436         th = (struct tcphdr *)(skb->data + (iph->ihl << 2));
1437
1438         length = (iph->ihl << 2) + (th->doff << 2) + lro_length;
1439         iph->tot_len = htons(length);
1440         iph->check = 0;
1441         iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
1442         th->psh = push;
1443         th->seq = htonl(seq_number);
1444
1445         length = skb->len;
1446
1447         netif_receive_skb(skb);
1448
1449         adapter->stats.lro_pkts++;
1450         adapter->stats.lrobytes += length;
1451
1452         return buffer;
1453 }
1454
1455 int
1456 qlcnic_process_rcv_ring(struct qlcnic_host_sds_ring *sds_ring, int max)
1457 {
1458         struct qlcnic_adapter *adapter = sds_ring->adapter;
1459         struct list_head *cur;
1460         struct status_desc *desc;
1461         struct qlcnic_rx_buffer *rxbuf;
1462         u64 sts_data0, sts_data1;
1463
1464         int count = 0;
1465         int opcode, ring, desc_cnt;
1466         u32 consumer = sds_ring->consumer;
1467
1468         while (count < max) {
1469                 desc = &sds_ring->desc_head[consumer];
1470                 sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
1471
1472                 if (!(sts_data0 & STATUS_OWNER_HOST))
1473                         break;
1474
1475                 desc_cnt = qlcnic_get_sts_desc_cnt(sts_data0);
1476                 opcode = qlcnic_get_sts_opcode(sts_data0);
1477
1478                 switch (opcode) {
1479                 case QLCNIC_RXPKT_DESC:
1480                 case QLCNIC_OLD_RXPKT_DESC:
1481                 case QLCNIC_SYN_OFFLOAD:
1482                         ring = qlcnic_get_sts_type(sts_data0);
1483                         rxbuf = qlcnic_process_rcv(adapter, sds_ring,
1484                                         ring, sts_data0);
1485                         break;
1486                 case QLCNIC_LRO_DESC:
1487                         ring = qlcnic_get_lro_sts_type(sts_data0);
1488                         sts_data1 = le64_to_cpu(desc->status_desc_data[1]);
1489                         rxbuf = qlcnic_process_lro(adapter, sds_ring,
1490                                         ring, sts_data0, sts_data1);
1491                         break;
1492                 case QLCNIC_RESPONSE_DESC:
1493                         qlcnic_handle_fw_message(desc_cnt, consumer, sds_ring);
1494                 default:
1495                         goto skip;
1496                 }
1497
1498                 WARN_ON(desc_cnt > 1);
1499
1500                 if (rxbuf)
1501                         list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]);
1502                 else
1503                         adapter->stats.null_rxbuf++;
1504
1505 skip:
1506                 for (; desc_cnt > 0; desc_cnt--) {
1507                         desc = &sds_ring->desc_head[consumer];
1508                         desc->status_desc_data[0] =
1509                                 cpu_to_le64(STATUS_OWNER_PHANTOM);
1510                         consumer = get_next_index(consumer, sds_ring->num_desc);
1511                 }
1512                 count++;
1513         }
1514
1515         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1516                 struct qlcnic_host_rds_ring *rds_ring =
1517                         &adapter->recv_ctx.rds_rings[ring];
1518
1519                 if (!list_empty(&sds_ring->free_list[ring])) {
1520                         list_for_each(cur, &sds_ring->free_list[ring]) {
1521                                 rxbuf = list_entry(cur,
1522                                                 struct qlcnic_rx_buffer, list);
1523                                 qlcnic_alloc_rx_skb(adapter, rds_ring, rxbuf);
1524                         }
1525                         spin_lock(&rds_ring->lock);
1526                         list_splice_tail_init(&sds_ring->free_list[ring],
1527                                                 &rds_ring->free_list);
1528                         spin_unlock(&rds_ring->lock);
1529                 }
1530
1531                 qlcnic_post_rx_buffers_nodb(adapter, rds_ring);
1532         }
1533
1534         if (count) {
1535                 sds_ring->consumer = consumer;
1536                 writel(consumer, sds_ring->crb_sts_consumer);
1537         }
1538
1539         return count;
1540 }
1541
1542 void
1543 qlcnic_post_rx_buffers(struct qlcnic_adapter *adapter, u32 ringid,
1544         struct qlcnic_host_rds_ring *rds_ring)
1545 {
1546         struct rcv_desc *pdesc;
1547         struct qlcnic_rx_buffer *buffer;
1548         int producer, count = 0;
1549         struct list_head *head;
1550
1551         spin_lock(&rds_ring->lock);
1552
1553         producer = rds_ring->producer;
1554
1555         head = &rds_ring->free_list;
1556         while (!list_empty(head)) {
1557
1558                 buffer = list_entry(head->next, struct qlcnic_rx_buffer, list);
1559
1560                 if (!buffer->skb) {
1561                         if (qlcnic_alloc_rx_skb(adapter, rds_ring, buffer))
1562                                 break;
1563                 }
1564
1565                 count++;
1566                 list_del(&buffer->list);
1567
1568                 /* make a rcv descriptor  */
1569                 pdesc = &rds_ring->desc_head[producer];
1570                 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1571                 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1572                 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1573
1574                 producer = get_next_index(producer, rds_ring->num_desc);
1575         }
1576
1577         if (count) {
1578                 rds_ring->producer = producer;
1579                 writel((producer-1) & (rds_ring->num_desc-1),
1580                                 rds_ring->crb_rcv_producer);
1581         }
1582         spin_unlock(&rds_ring->lock);
1583 }
1584
1585 static void
1586 qlcnic_post_rx_buffers_nodb(struct qlcnic_adapter *adapter,
1587                 struct qlcnic_host_rds_ring *rds_ring)
1588 {
1589         struct rcv_desc *pdesc;
1590         struct qlcnic_rx_buffer *buffer;
1591         int producer, count = 0;
1592         struct list_head *head;
1593
1594         if (!spin_trylock(&rds_ring->lock))
1595                 return;
1596
1597         producer = rds_ring->producer;
1598
1599         head = &rds_ring->free_list;
1600         while (!list_empty(head)) {
1601
1602                 buffer = list_entry(head->next, struct qlcnic_rx_buffer, list);
1603
1604                 if (!buffer->skb) {
1605                         if (qlcnic_alloc_rx_skb(adapter, rds_ring, buffer))
1606                                 break;
1607                 }
1608
1609                 count++;
1610                 list_del(&buffer->list);
1611
1612                 /* make a rcv descriptor  */
1613                 pdesc = &rds_ring->desc_head[producer];
1614                 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1615                 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1616                 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1617
1618                 producer = get_next_index(producer, rds_ring->num_desc);
1619         }
1620
1621         if (count) {
1622                 rds_ring->producer = producer;
1623                 writel((producer - 1) & (rds_ring->num_desc - 1),
1624                                 rds_ring->crb_rcv_producer);
1625         }
1626         spin_unlock(&rds_ring->lock);
1627 }
1628
1629 static struct qlcnic_rx_buffer *
1630 qlcnic_process_rcv_diag(struct qlcnic_adapter *adapter,
1631                 struct qlcnic_host_sds_ring *sds_ring,
1632                 int ring, u64 sts_data0)
1633 {
1634         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1635         struct qlcnic_rx_buffer *buffer;
1636         struct sk_buff *skb;
1637         struct qlcnic_host_rds_ring *rds_ring;
1638         int index, length, cksum, pkt_offset;
1639
1640         if (unlikely(ring >= adapter->max_rds_rings))
1641                 return NULL;
1642
1643         rds_ring = &recv_ctx->rds_rings[ring];
1644
1645         index = qlcnic_get_sts_refhandle(sts_data0);
1646         if (unlikely(index >= rds_ring->num_desc))
1647                 return NULL;
1648
1649         buffer = &rds_ring->rx_buf_arr[index];
1650
1651         length = qlcnic_get_sts_totallength(sts_data0);
1652         cksum  = qlcnic_get_sts_status(sts_data0);
1653         pkt_offset = qlcnic_get_sts_pkt_offset(sts_data0);
1654
1655         skb = qlcnic_process_rxbuf(adapter, rds_ring, index, cksum);
1656         if (!skb)
1657                 return buffer;
1658
1659         skb_put(skb, rds_ring->skb_size);
1660
1661         if (pkt_offset)
1662                 skb_pull(skb, pkt_offset);
1663
1664         skb->truesize = skb->len + sizeof(struct sk_buff);
1665
1666         if (!qlcnic_check_loopback_buff(skb->data))
1667                 adapter->diag_cnt++;
1668
1669         dev_kfree_skb_any(skb);
1670         adapter->stats.rx_pkts++;
1671         adapter->stats.rxbytes += length;
1672
1673         return buffer;
1674 }
1675
1676 void
1677 qlcnic_process_rcv_ring_diag(struct qlcnic_host_sds_ring *sds_ring)
1678 {
1679         struct qlcnic_adapter *adapter = sds_ring->adapter;
1680         struct status_desc *desc;
1681         struct qlcnic_rx_buffer *rxbuf;
1682         u64 sts_data0;
1683
1684         int opcode, ring, desc_cnt;
1685         u32 consumer = sds_ring->consumer;
1686
1687         desc = &sds_ring->desc_head[consumer];
1688         sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
1689
1690         if (!(sts_data0 & STATUS_OWNER_HOST))
1691                 return;
1692
1693         desc_cnt = qlcnic_get_sts_desc_cnt(sts_data0);
1694         opcode = qlcnic_get_sts_opcode(sts_data0);
1695
1696         ring = qlcnic_get_sts_type(sts_data0);
1697         rxbuf = qlcnic_process_rcv_diag(adapter, sds_ring,
1698                                         ring, sts_data0);
1699
1700         desc->status_desc_data[0] = cpu_to_le64(STATUS_OWNER_PHANTOM);
1701         consumer = get_next_index(consumer, sds_ring->num_desc);
1702
1703         sds_ring->consumer = consumer;
1704         writel(consumer, sds_ring->crb_sts_consumer);
1705 }