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 <linux/if_vlan.h>
  29 #include "qlcnic.h"
  30
  31 struct crb_addr_pair {
  32         u32 addr;
  33         u32 data;
  34 };
  35
  36 #define QLCNIC_MAX_CRB_XFORM 60
  37 static unsigned int crb_addr_xform[QLCNIC_MAX_CRB_XFORM];
  38
  39 #define crb_addr_transform(name) \
  40         (crb_addr_xform[QLCNIC_HW_PX_MAP_CRB_##name] = \
  41         QLCNIC_HW_CRB_HUB_AGT_ADR_##name << 20)
  42
  43 #define QLCNIC_ADDR_ERROR (0xffffffff)
  44
  45 static void
  46 qlcnic_post_rx_buffers_nodb(struct qlcnic_adapter *adapter,
  47                 struct qlcnic_host_rds_ring *rds_ring);
  48
  49 static void crb_addr_transform_setup(void)
  50 {
  51         crb_addr_transform(XDMA);
  52         crb_addr_transform(TIMR);
  53         crb_addr_transform(SRE);
  54         crb_addr_transform(SQN3);
  55         crb_addr_transform(SQN2);
  56         crb_addr_transform(SQN1);
  57         crb_addr_transform(SQN0);
  58         crb_addr_transform(SQS3);
  59         crb_addr_transform(SQS2);
  60         crb_addr_transform(SQS1);
  61         crb_addr_transform(SQS0);
  62         crb_addr_transform(RPMX7);
  63         crb_addr_transform(RPMX6);
  64         crb_addr_transform(RPMX5);
  65         crb_addr_transform(RPMX4);
  66         crb_addr_transform(RPMX3);
  67         crb_addr_transform(RPMX2);
  68         crb_addr_transform(RPMX1);
  69         crb_addr_transform(RPMX0);
  70         crb_addr_transform(ROMUSB);
  71         crb_addr_transform(SN);
  72         crb_addr_transform(QMN);
  73         crb_addr_transform(QMS);
  74         crb_addr_transform(PGNI);
  75         crb_addr_transform(PGND);
  76         crb_addr_transform(PGN3);
  77         crb_addr_transform(PGN2);
  78         crb_addr_transform(PGN1);
  79         crb_addr_transform(PGN0);
  80         crb_addr_transform(PGSI);
  81         crb_addr_transform(PGSD);
  82         crb_addr_transform(PGS3);
  83         crb_addr_transform(PGS2);
  84         crb_addr_transform(PGS1);
  85         crb_addr_transform(PGS0);
  86         crb_addr_transform(PS);
  87         crb_addr_transform(PH);
  88         crb_addr_transform(NIU);
  89         crb_addr_transform(I2Q);
  90         crb_addr_transform(EG);
  91         crb_addr_transform(MN);
  92         crb_addr_transform(MS);
  93         crb_addr_transform(CAS2);
  94         crb_addr_transform(CAS1);
  95         crb_addr_transform(CAS0);
  96         crb_addr_transform(CAM);
  97         crb_addr_transform(C2C1);
  98         crb_addr_transform(C2C0);
  99         crb_addr_transform(SMB);
 100         crb_addr_transform(OCM0);
 101         crb_addr_transform(I2C0);
 102 }
 103
 104 void qlcnic_release_rx_buffers(struct qlcnic_adapter *adapter)
 105 {
 106         struct qlcnic_recv_context *recv_ctx;
 107         struct qlcnic_host_rds_ring *rds_ring;
 108         struct qlcnic_rx_buffer *rx_buf;
 109         int i, ring;
 110
 111         recv_ctx = &adapter->recv_ctx;
 112         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
 113                 rds_ring = &recv_ctx->rds_rings[ring];
 114                 for (i = 0; i < rds_ring->num_desc; ++i) {
 115                         rx_buf = &(rds_ring->rx_buf_arr[i]);
 116                         if (rx_buf->skb == NULL)
 117                                 continue;
 118
 119                         pci_unmap_single(adapter->pdev,
 120                                         rx_buf->dma,
 121                                         rds_ring->dma_size,
 122                                         PCI_DMA_FROMDEVICE);
 123
 124                         dev_kfree_skb_any(rx_buf->skb);
 125                 }
 126         }
 127 }
 128
 129 void qlcnic_reset_rx_buffers_list(struct qlcnic_adapter *adapter)
 130 {
 131         struct qlcnic_recv_context *recv_ctx;
 132         struct qlcnic_host_rds_ring *rds_ring;
 133         struct qlcnic_rx_buffer *rx_buf;
 134         int i, ring;
 135
 136         recv_ctx = &adapter->recv_ctx;
 137         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
 138                 rds_ring = &recv_ctx->rds_rings[ring];
 139
 140                 INIT_LIST_HEAD(&rds_ring->free_list);
 141
 142                 rx_buf = rds_ring->rx_buf_arr;
 143                 for (i = 0; i < rds_ring->num_desc; i++) {
 144                         list_add_tail(&rx_buf->list,
 145                                         &rds_ring->free_list);
 146                         rx_buf++;
 147                 }
 148         }
 149 }
 150
 151 void qlcnic_release_tx_buffers(struct qlcnic_adapter *adapter)
 152 {
 153         struct qlcnic_cmd_buffer *cmd_buf;
 154         struct qlcnic_skb_frag *buffrag;
 155         int i, j;
 156         struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
 157
 158         cmd_buf = tx_ring->cmd_buf_arr;
 159         for (i = 0; i < tx_ring->num_desc; i++) {
 160                 buffrag = cmd_buf->frag_array;
 161                 if (buffrag->dma) {
 162                         pci_unmap_single(adapter->pdev, buffrag->dma,
 163                                          buffrag->length, PCI_DMA_TODEVICE);
 164                         buffrag->dma = 0ULL;
 165                 }
 166                 for (j = 0; j < cmd_buf->frag_count; j++) {
 167                         buffrag++;
 168                         if (buffrag->dma) {
 169                                 pci_unmap_page(adapter->pdev, buffrag->dma,
 170                                                buffrag->length,
 171                                                PCI_DMA_TODEVICE);
 172                                 buffrag->dma = 0ULL;
 173                         }
 174                 }
 175                 if (cmd_buf->skb) {
 176                         dev_kfree_skb_any(cmd_buf->skb);
 177                         cmd_buf->skb = NULL;
 178                 }
 179                 cmd_buf++;
 180         }
 181 }
 182
 183 void qlcnic_free_sw_resources(struct qlcnic_adapter *adapter)
 184 {
 185         struct qlcnic_recv_context *recv_ctx;
 186         struct qlcnic_host_rds_ring *rds_ring;
 187         struct qlcnic_host_tx_ring *tx_ring;
 188         int ring;
 189
 190         recv_ctx = &adapter->recv_ctx;
 191
 192         if (recv_ctx->rds_rings == NULL)
 193                 goto skip_rds;
 194
 195         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
 196                 rds_ring = &recv_ctx->rds_rings[ring];
 197                 vfree(rds_ring->rx_buf_arr);
 198                 rds_ring->rx_buf_arr = NULL;
 199         }
 200         kfree(recv_ctx->rds_rings);
 201
 202 skip_rds:
 203         if (adapter->tx_ring == NULL)
 204                 return;
 205
 206         tx_ring = adapter->tx_ring;
 207         vfree(tx_ring->cmd_buf_arr);
 208         tx_ring->cmd_buf_arr = NULL;
 209         kfree(adapter->tx_ring);
 210         adapter->tx_ring = NULL;
 211 }
 212
 213 int qlcnic_alloc_sw_resources(struct qlcnic_adapter *adapter)
 214 {
 215         struct qlcnic_recv_context *recv_ctx;
 216         struct qlcnic_host_rds_ring *rds_ring;
 217         struct qlcnic_host_sds_ring *sds_ring;
 218         struct qlcnic_host_tx_ring *tx_ring;
 219         struct qlcnic_rx_buffer *rx_buf;
 220         int ring, i, size;
 221
 222         struct qlcnic_cmd_buffer *cmd_buf_arr;
 223         struct net_device *netdev = adapter->netdev;
 224
 225         size = sizeof(struct qlcnic_host_tx_ring);
 226         tx_ring = kzalloc(size, GFP_KERNEL);
 227         if (tx_ring == NULL) {
 228                 dev_err(&netdev->dev, "failed to allocate tx ring struct\n");
 229                 return -ENOMEM;
 230         }
 231         adapter->tx_ring = tx_ring;
 232
 233         tx_ring->num_desc = adapter->num_txd;
 234         tx_ring->txq = netdev_get_tx_queue(netdev, 0);
 235
 236         cmd_buf_arr = vmalloc(TX_BUFF_RINGSIZE(tx_ring));
 237         if (cmd_buf_arr == NULL) {
 238                 dev_err(&netdev->dev, "failed to allocate cmd buffer ring\n");
 239                 goto err_out;
 240         }
 241         memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
 242         tx_ring->cmd_buf_arr = cmd_buf_arr;
 243
 244         recv_ctx = &adapter->recv_ctx;
 245
 246         size = adapter->max_rds_rings * sizeof(struct qlcnic_host_rds_ring);
 247         rds_ring = kzalloc(size, GFP_KERNEL);
 248         if (rds_ring == NULL) {
 249                 dev_err(&netdev->dev, "failed to allocate rds ring struct\n");
 250                 goto err_out;
 251         }
 252         recv_ctx->rds_rings = rds_ring;
 253
 254         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
 255                 rds_ring = &recv_ctx->rds_rings[ring];
 256                 switch (ring) {
 257                 case RCV_RING_NORMAL:
 258                         rds_ring->num_desc = adapter->num_rxd;
 259                         rds_ring->dma_size = QLCNIC_P3_RX_BUF_MAX_LEN;
 260                         rds_ring->skb_size = rds_ring->dma_size + NET_IP_ALIGN;
 261                         break;
 262
 263                 case RCV_RING_JUMBO:
 264                         rds_ring->num_desc = adapter->num_jumbo_rxd;
 265                         rds_ring->dma_size =
 266                                 QLCNIC_P3_RX_JUMBO_BUF_MAX_LEN;
 267
 268                         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
 269                                 rds_ring->dma_size += QLCNIC_LRO_BUFFER_EXTRA;
 270
 271                         rds_ring->skb_size =
 272                                 rds_ring->dma_size + NET_IP_ALIGN;
 273                         break;
 274                 }
 275                 rds_ring->rx_buf_arr = (struct qlcnic_rx_buffer *)
 276                         vmalloc(RCV_BUFF_RINGSIZE(rds_ring));
 277                 if (rds_ring->rx_buf_arr == NULL) {
 278                         dev_err(&netdev->dev, "Failed to allocate "
 279                                 "rx buffer ring %d\n", ring);
 280                         goto err_out;
 281                 }
 282                 memset(rds_ring->rx_buf_arr, 0, RCV_BUFF_RINGSIZE(rds_ring));
 283                 INIT_LIST_HEAD(&rds_ring->free_list);
 284                 /*
 285                  * Now go through all of them, set reference handles
 286                  * and put them in the queues.
 287                  */
 288                 rx_buf = rds_ring->rx_buf_arr;
 289                 for (i = 0; i < rds_ring->num_desc; i++) {
 290                         list_add_tail(&rx_buf->list,
 291                                         &rds_ring->free_list);
 292                         rx_buf->ref_handle = i;
 293                         rx_buf++;
 294                 }
 295                 spin_lock_init(&rds_ring->lock);
 296         }
 297
 298         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 299                 sds_ring = &recv_ctx->sds_rings[ring];
 300                 sds_ring->irq = adapter->msix_entries[ring].vector;
 301                 sds_ring->adapter = adapter;
 302                 sds_ring->num_desc = adapter->num_rxd;
 303
 304                 for (i = 0; i < NUM_RCV_DESC_RINGS; i++)
 305                         INIT_LIST_HEAD(&sds_ring->free_list[i]);
 306         }
 307
 308         return 0;
 309
 310 err_out:
 311         qlcnic_free_sw_resources(adapter);
 312         return -ENOMEM;
 313 }
 314
 315 /*
 316  * Utility to translate from internal Phantom CRB address
 317  * to external PCI CRB address.
 318  */
 319 static u32 qlcnic_decode_crb_addr(u32 addr)
 320 {
 321         int i;
 322         u32 base_addr, offset, pci_base;
 323
 324         crb_addr_transform_setup();
 325
 326         pci_base = QLCNIC_ADDR_ERROR;
 327         base_addr = addr & 0xfff00000;
 328         offset = addr & 0x000fffff;
 329
 330         for (i = 0; i < QLCNIC_MAX_CRB_XFORM; i++) {
 331                 if (crb_addr_xform[i] == base_addr) {
 332                         pci_base = i << 20;
 333                         break;
 334                 }
 335         }
 336         if (pci_base == QLCNIC_ADDR_ERROR)
 337                 return pci_base;
 338         else
 339                 return pci_base + offset;
 340 }
 341
 342 #define QLCNIC_MAX_ROM_WAIT_USEC        100
 343
 344 static int qlcnic_wait_rom_done(struct qlcnic_adapter *adapter)
 345 {
 346         long timeout = 0;
 347         long done = 0;
 348
 349         cond_resched();
 350
 351         while (done == 0) {
 352                 done = QLCRD32(adapter, QLCNIC_ROMUSB_GLB_STATUS);
 353                 done &= 2;
 354                 if (++timeout >= QLCNIC_MAX_ROM_WAIT_USEC) {
 355                         dev_err(&adapter->pdev->dev,
 356                                 "Timeout reached  waiting for rom done");
 357                         return -EIO;
 358                 }
 359                 udelay(1);
 360         }
 361         return 0;
 362 }
 363
 364 static int do_rom_fast_read(struct qlcnic_adapter *adapter,
 365                             int addr, int *valp)
 366 {
 367         QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ADDRESS, addr);
 368         QLCWR32(adapter, QLCNIC_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
 369         QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ABYTE_CNT, 3);
 370         QLCWR32(adapter, QLCNIC_ROMUSB_ROM_INSTR_OPCODE, 0xb);
 371         if (qlcnic_wait_rom_done(adapter)) {
 372                 dev_err(&adapter->pdev->dev, "Error waiting for rom done\n");
 373                 return -EIO;
 374         }
 375         /* reset abyte_cnt and dummy_byte_cnt */
 376         QLCWR32(adapter, QLCNIC_ROMUSB_ROM_ABYTE_CNT, 0);
 377         udelay(10);
 378         QLCWR32(adapter, QLCNIC_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
 379
 380         *valp = QLCRD32(adapter, QLCNIC_ROMUSB_ROM_RDATA);
 381         return 0;
 382 }
 383
 384 static int do_rom_fast_read_words(struct qlcnic_adapter *adapter, int addr,
 385                                   u8 *bytes, size_t size)
 386 {
 387         int addridx;
 388         int ret = 0;
 389
 390         for (addridx = addr; addridx < (addr + size); addridx += 4) {
 391                 int v;
 392                 ret = do_rom_fast_read(adapter, addridx, &v);
 393                 if (ret != 0)
 394                         break;
 395                 *(__le32 *)bytes = cpu_to_le32(v);
 396                 bytes += 4;
 397         }
 398
 399         return ret;
 400 }
 401
 402 int
 403 qlcnic_rom_fast_read_words(struct qlcnic_adapter *adapter, int addr,
 404                                 u8 *bytes, size_t size)
 405 {
 406         int ret;
 407
 408         ret = qlcnic_rom_lock(adapter);
 409         if (ret < 0)
 410                 return ret;
 411
 412         ret = do_rom_fast_read_words(adapter, addr, bytes, size);
 413
 414         qlcnic_rom_unlock(adapter);
 415         return ret;
 416 }
 417
 418 int qlcnic_rom_fast_read(struct qlcnic_adapter *adapter, int addr, int *valp)
 419 {
 420         int ret;
 421
 422         if (qlcnic_rom_lock(adapter) != 0)
 423                 return -EIO;
 424
 425         ret = do_rom_fast_read(adapter, addr, valp);
 426         qlcnic_rom_unlock(adapter);
 427         return ret;
 428 }
 429
 430 int qlcnic_pinit_from_rom(struct qlcnic_adapter *adapter)
 431 {
 432         int addr, val;
 433         int i, n, init_delay;
 434         struct crb_addr_pair *buf;
 435         unsigned offset;
 436         u32 off;
 437         struct pci_dev *pdev = adapter->pdev;
 438
 439         QLCWR32(adapter, CRB_CMDPEG_STATE, 0);
 440         QLCWR32(adapter, CRB_RCVPEG_STATE, 0);
 441
 442         qlcnic_rom_lock(adapter);
 443         QLCWR32(adapter, QLCNIC_ROMUSB_GLB_SW_RESET, 0xfeffffff);
 444         qlcnic_rom_unlock(adapter);
 445
 446         /* Init HW CRB block */
 447         if (qlcnic_rom_fast_read(adapter, 0, &n) != 0 || (n != 0xcafecafe) ||
 448                         qlcnic_rom_fast_read(adapter, 4, &n) != 0) {
 449                 dev_err(&pdev->dev, "ERROR Reading crb_init area: val:%x\n", n);
 450                 return -EIO;
 451         }
 452         offset = n & 0xffffU;
 453         n = (n >> 16) & 0xffffU;
 454
 455         if (n >= 1024) {
 456                 dev_err(&pdev->dev, "QLOGIC card flash not initialized.\n");
 457                 return -EIO;
 458         }
 459
 460         buf = kcalloc(n, sizeof(struct crb_addr_pair), GFP_KERNEL);
 461         if (buf == NULL) {
 462                 dev_err(&pdev->dev, "Unable to calloc memory for rom read.\n");
 463                 return -ENOMEM;
 464         }
 465
 466         for (i = 0; i < n; i++) {
 467                 if (qlcnic_rom_fast_read(adapter, 8*i + 4*offset, &val) != 0 ||
 468                 qlcnic_rom_fast_read(adapter, 8*i + 4*offset + 4, &addr) != 0) {
 469                         kfree(buf);
 470                         return -EIO;
 471                 }
 472
 473                 buf[i].addr = addr;
 474                 buf[i].data = val;
 475         }
 476
 477         for (i = 0; i < n; i++) {
 478
 479                 off = qlcnic_decode_crb_addr(buf[i].addr);
 480                 if (off == QLCNIC_ADDR_ERROR) {
 481                         dev_err(&pdev->dev, "CRB init value out of range %x\n",
 482                                         buf[i].addr);
 483                         continue;
 484                 }
 485                 off += QLCNIC_PCI_CRBSPACE;
 486
 487                 if (off & 1)
 488                         continue;
 489
 490                 /* skipping cold reboot MAGIC */
 491                 if (off == QLCNIC_CAM_RAM(0x1fc))
 492                         continue;
 493                 if (off == (QLCNIC_CRB_I2C0 + 0x1c))
 494                         continue;
 495                 if (off == (ROMUSB_GLB + 0xbc)) /* do not reset PCI */
 496                         continue;
 497                 if (off == (ROMUSB_GLB + 0xa8))
 498                         continue;
 499                 if (off == (ROMUSB_GLB + 0xc8)) /* core clock */
 500                         continue;
 501                 if (off == (ROMUSB_GLB + 0x24)) /* MN clock */
 502                         continue;
 503                 if (off == (ROMUSB_GLB + 0x1c)) /* MS clock */
 504                         continue;
 505                 if ((off & 0x0ff00000) == QLCNIC_CRB_DDR_NET)
 506                         continue;
 507                 /* skip the function enable register */
 508                 if (off == QLCNIC_PCIE_REG(PCIE_SETUP_FUNCTION))
 509                         continue;
 510                 if (off == QLCNIC_PCIE_REG(PCIE_SETUP_FUNCTION2))
 511                         continue;
 512                 if ((off & 0x0ff00000) == QLCNIC_CRB_SMB)
 513                         continue;
 514
 515                 init_delay = 1;
 516                 /* After writing this register, HW needs time for CRB */
 517                 /* to quiet down (else crb_window returns 0xffffffff) */
 518                 if (off == QLCNIC_ROMUSB_GLB_SW_RESET)
 519                         init_delay = 1000;
 520
 521                 QLCWR32(adapter, off, buf[i].data);
 522
 523                 msleep(init_delay);
 524         }
 525         kfree(buf);
 526
 527         /* Initialize protocol process engine */
 528         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_D + 0xec, 0x1e);
 529         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_D + 0x4c, 8);
 530         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_I + 0x4c, 8);
 531         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x8, 0);
 532         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0xc, 0);
 533         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x8, 0);
 534         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_1 + 0xc, 0);
 535         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x8, 0);
 536         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_2 + 0xc, 0);
 537         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x8, 0);
 538         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_3 + 0xc, 0);
 539         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x8, 0);
 540         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_4 + 0xc, 0);
 541         msleep(1);
 542         QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS1, 0);
 543         QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS2, 0);
 544         return 0;
 545 }
 546
 547 int
 548 qlcnic_check_fw_status(struct qlcnic_adapter *adapter)
 549 {
 550         u32 heartbit, ret = -EIO;
 551         int retries = QLCNIC_HEARTBEAT_RETRY_COUNT;
 552
 553         adapter->heartbit = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
 554         do {
 555                 msleep(QLCNIC_HEARTBEAT_PERIOD_MSECS);
 556                 heartbit = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
 557                 if (heartbit != adapter->heartbit) {
 558                         /* Complete firmware handshake */
 559                         QLCWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_ACK);
 560                         ret = QLCNIC_RCODE_SUCCESS;
 561                         break;
 562                 }
 563         } while (--retries);
 564
 565         return ret;
 566 }
 567
 568 int
 569 qlcnic_setup_idc_param(struct qlcnic_adapter *adapter) {
 570
 571         int timeo;
 572         u32 val;
 573
 574         val = QLCRD32(adapter, QLCNIC_CRB_DEV_PARTITION_INFO);
 575         val = QLC_DEV_GET_DRV(val, adapter->portnum);
 576         if ((val & 0x3) != QLCNIC_TYPE_NIC) {
 577                 dev_err(&adapter->pdev->dev,
 578                         "Not an Ethernet NIC func=%u\n", val);
 579                 return -EIO;
 580         }
 581         adapter->physical_port = (val >> 2);
 582         if (qlcnic_rom_fast_read(adapter, QLCNIC_ROM_DEV_INIT_TIMEOUT, &timeo))
 583                 timeo = QLCNIC_INIT_TIMEOUT_SECS;
 584
 585         adapter->dev_init_timeo = timeo;
 586
 587         if (qlcnic_rom_fast_read(adapter, QLCNIC_ROM_DRV_RESET_TIMEOUT, &timeo))
 588                 timeo = QLCNIC_RESET_TIMEOUT_SECS;
 589
 590         adapter->reset_ack_timeo = timeo;
 591
 592         return 0;
 593 }
 594
 595 int
 596 qlcnic_check_flash_fw_ver(struct qlcnic_adapter *adapter)
 597 {
 598         u32 ver = -1, min_ver;
 599
 600         qlcnic_rom_fast_read(adapter, QLCNIC_FW_VERSION_OFFSET, (int *)&ver);
 601
 602         ver = QLCNIC_DECODE_VERSION(ver);
 603         min_ver = QLCNIC_MIN_FW_VERSION;
 604
 605         if (ver < min_ver) {
 606                 dev_err(&adapter->pdev->dev,
 607                         "firmware version %d.%d.%d unsupported."
 608                         "Min supported version %d.%d.%d\n",
 609                         _major(ver), _minor(ver), _build(ver),
 610                         _major(min_ver), _minor(min_ver), _build(min_ver));
 611                 return -EINVAL;
 612         }
 613
 614         return 0;
 615 }
 616
 617 static int
 618 qlcnic_has_mn(struct qlcnic_adapter *adapter)
 619 {
 620         u32 capability;
 621         capability = 0;
 622
 623         capability = QLCRD32(adapter, QLCNIC_PEG_TUNE_CAPABILITY);
 624         if (capability & QLCNIC_PEG_TUNE_MN_PRESENT)
 625                 return 1;
 626
 627         return 0;
 628 }
 629
 630 static
 631 struct uni_table_desc *qlcnic_get_table_desc(const u8 *unirom, int section)
 632 {
 633         u32 i;
 634         struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
 635         __le32 entries = cpu_to_le32(directory->num_entries);
 636
 637         for (i = 0; i < entries; i++) {
 638
 639                 __le32 offs = cpu_to_le32(directory->findex) +
 640                                 (i * cpu_to_le32(directory->entry_size));
 641                 __le32 tab_type = cpu_to_le32(*((u32 *)&unirom[offs] + 8));
 642
 643                 if (tab_type == section)
 644                         return (struct uni_table_desc *) &unirom[offs];
 645         }
 646
 647         return NULL;
 648 }
 649
 650 #define FILEHEADER_SIZE (14 * 4)
 651
 652 static int
 653 qlcnic_validate_header(struct qlcnic_adapter *adapter)
 654 {
 655         const u8 *unirom = adapter->fw->data;
 656         struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
 657         __le32 fw_file_size = adapter->fw->size;
 658         __le32 entries;
 659         __le32 entry_size;
 660         __le32 tab_size;
 661
 662         if (fw_file_size < FILEHEADER_SIZE)
 663                 return -EINVAL;
 664
 665         entries = cpu_to_le32(directory->num_entries);
 666         entry_size = cpu_to_le32(directory->entry_size);
 667         tab_size = cpu_to_le32(directory->findex) + (entries * entry_size);
 668
 669         if (fw_file_size < tab_size)
 670                 return -EINVAL;
 671
 672         return 0;
 673 }
 674
 675 static int
 676 qlcnic_validate_bootld(struct qlcnic_adapter *adapter)
 677 {
 678         struct uni_table_desc *tab_desc;
 679         struct uni_data_desc *descr;
 680         const u8 *unirom = adapter->fw->data;
 681         int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
 682                                 QLCNIC_UNI_BOOTLD_IDX_OFF));
 683         __le32 offs;
 684         __le32 tab_size;
 685         __le32 data_size;
 686
 687         tab_desc = qlcnic_get_table_desc(unirom, QLCNIC_UNI_DIR_SECT_BOOTLD);
 688
 689         if (!tab_desc)
 690                 return -EINVAL;
 691
 692         tab_size = cpu_to_le32(tab_desc->findex) +
 693                         (cpu_to_le32(tab_desc->entry_size) * (idx + 1));
 694
 695         if (adapter->fw->size < tab_size)
 696                 return -EINVAL;
 697
 698         offs = cpu_to_le32(tab_desc->findex) +
 699                 (cpu_to_le32(tab_desc->entry_size) * (idx));
 700         descr = (struct uni_data_desc *)&unirom[offs];
 701
 702         data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size);
 703
 704         if (adapter->fw->size < data_size)
 705                 return -EINVAL;
 706
 707         return 0;
 708 }
 709
 710 static int
 711 qlcnic_validate_fw(struct qlcnic_adapter *adapter)
 712 {
 713         struct uni_table_desc *tab_desc;
 714         struct uni_data_desc *descr;
 715         const u8 *unirom = adapter->fw->data;
 716         int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
 717                                 QLCNIC_UNI_FIRMWARE_IDX_OFF));
 718         __le32 offs;
 719         __le32 tab_size;
 720         __le32 data_size;
 721
 722         tab_desc = qlcnic_get_table_desc(unirom, QLCNIC_UNI_DIR_SECT_FW);
 723
 724         if (!tab_desc)
 725                 return -EINVAL;
 726
 727         tab_size = cpu_to_le32(tab_desc->findex) +
 728                         (cpu_to_le32(tab_desc->entry_size) * (idx + 1));
 729
 730         if (adapter->fw->size < tab_size)
 731                 return -EINVAL;
 732
 733         offs = cpu_to_le32(tab_desc->findex) +
 734                 (cpu_to_le32(tab_desc->entry_size) * (idx));
 735         descr = (struct uni_data_desc *)&unirom[offs];
 736         data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size);
 737
 738         if (adapter->fw->size < data_size)
 739                 return -EINVAL;
 740
 741         return 0;
 742 }
 743
 744 static int
 745 qlcnic_validate_product_offs(struct qlcnic_adapter *adapter)
 746 {
 747         struct uni_table_desc *ptab_descr;
 748         const u8 *unirom = adapter->fw->data;
 749         int mn_present = qlcnic_has_mn(adapter);
 750         __le32 entries;
 751         __le32 entry_size;
 752         __le32 tab_size;
 753         u32 i;
 754
 755         ptab_descr = qlcnic_get_table_desc(unirom,
 756                                 QLCNIC_UNI_DIR_SECT_PRODUCT_TBL);
 757         if (!ptab_descr)
 758                 return -EINVAL;
 759
 760         entries = cpu_to_le32(ptab_descr->num_entries);
 761         entry_size = cpu_to_le32(ptab_descr->entry_size);
 762         tab_size = cpu_to_le32(ptab_descr->findex) + (entries * entry_size);
 763
 764         if (adapter->fw->size < tab_size)
 765                 return -EINVAL;
 766
 767 nomn:
 768         for (i = 0; i < entries; i++) {
 769
 770                 __le32 flags, file_chiprev, offs;
 771                 u8 chiprev = adapter->ahw.revision_id;
 772                 u32 flagbit;
 773
 774                 offs = cpu_to_le32(ptab_descr->findex) +
 775                                 (i * cpu_to_le32(ptab_descr->entry_size));
 776                 flags = cpu_to_le32(*((int *)&unirom[offs] +
 777                                                 QLCNIC_UNI_FLAGS_OFF));
 778                 file_chiprev = cpu_to_le32(*((int *)&unirom[offs] +
 779                                                 QLCNIC_UNI_CHIP_REV_OFF));
 780
 781                 flagbit = mn_present ? 1 : 2;
 782
 783                 if ((chiprev == file_chiprev) &&
 784                                         ((1ULL << flagbit) & flags)) {
 785                         adapter->file_prd_off = offs;
 786                         return 0;
 787                 }
 788         }
 789         if (mn_present) {
 790                 mn_present = 0;
 791                 goto nomn;
 792         }
 793         return -EINVAL;
 794 }
 795
 796 static int
 797 qlcnic_validate_unified_romimage(struct qlcnic_adapter *adapter)
 798 {
 799         if (qlcnic_validate_header(adapter)) {
 800                 dev_err(&adapter->pdev->dev,
 801                                 "unified image: header validation failed\n");
 802                 return -EINVAL;
 803         }
 804
 805         if (qlcnic_validate_product_offs(adapter)) {
 806                 dev_err(&adapter->pdev->dev,
 807                                 "unified image: product validation failed\n");
 808                 return -EINVAL;
 809         }
 810
 811         if (qlcnic_validate_bootld(adapter)) {
 812                 dev_err(&adapter->pdev->dev,
 813                                 "unified image: bootld validation failed\n");
 814                 return -EINVAL;
 815         }
 816
 817         if (qlcnic_validate_fw(adapter)) {
 818                 dev_err(&adapter->pdev->dev,
 819                                 "unified image: firmware validation failed\n");
 820                 return -EINVAL;
 821         }
 822
 823         return 0;
 824 }
 825
 826 static
 827 struct uni_data_desc *qlcnic_get_data_desc(struct qlcnic_adapter *adapter,
 828                         u32 section, u32 idx_offset)
 829 {
 830         const u8 *unirom = adapter->fw->data;
 831         int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
 832                                                                 idx_offset));
 833         struct uni_table_desc *tab_desc;
 834         __le32 offs;
 835
 836         tab_desc = qlcnic_get_table_desc(unirom, section);
 837
 838         if (tab_desc == NULL)
 839                 return NULL;
 840
 841         offs = cpu_to_le32(tab_desc->findex) +
 842                         (cpu_to_le32(tab_desc->entry_size) * idx);
 843
 844         return (struct uni_data_desc *)&unirom[offs];
 845 }
 846
 847 static u8 *
 848 qlcnic_get_bootld_offs(struct qlcnic_adapter *adapter)
 849 {
 850         u32 offs = QLCNIC_BOOTLD_START;
 851
 852         if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
 853                 offs = cpu_to_le32((qlcnic_get_data_desc(adapter,
 854                                         QLCNIC_UNI_DIR_SECT_BOOTLD,
 855                                         QLCNIC_UNI_BOOTLD_IDX_OFF))->findex);
 856
 857         return (u8 *)&adapter->fw->data[offs];
 858 }
 859
 860 static u8 *
 861 qlcnic_get_fw_offs(struct qlcnic_adapter *adapter)
 862 {
 863         u32 offs = QLCNIC_IMAGE_START;
 864
 865         if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
 866                 offs = cpu_to_le32((qlcnic_get_data_desc(adapter,
 867                                         QLCNIC_UNI_DIR_SECT_FW,
 868                                         QLCNIC_UNI_FIRMWARE_IDX_OFF))->findex);
 869
 870         return (u8 *)&adapter->fw->data[offs];
 871 }
 872
 873 static __le32
 874 qlcnic_get_fw_size(struct qlcnic_adapter *adapter)
 875 {
 876         if (adapter->fw_type == QLCNIC_UNIFIED_ROMIMAGE)
 877                 return cpu_to_le32((qlcnic_get_data_desc(adapter,
 878                                         QLCNIC_UNI_DIR_SECT_FW,
 879                                         QLCNIC_UNI_FIRMWARE_IDX_OFF))->size);
 880         else
 881                 return cpu_to_le32(
 882                         *(u32 *)&adapter->fw->data[QLCNIC_FW_SIZE_OFFSET]);
 883 }
 884
 885 static __le32
 886 qlcnic_get_fw_version(struct qlcnic_adapter *adapter)
 887 {
 888         struct uni_data_desc *fw_data_desc;
 889         const struct firmware *fw = adapter->fw;
 890         __le32 major, minor, sub;
 891         const u8 *ver_str;
 892         int i, ret;
 893
 894         if (adapter->fw_type != QLCNIC_UNIFIED_ROMIMAGE)
 895                 return cpu_to_le32(*(u32 *)&fw->data[QLCNIC_FW_VERSION_OFFSET]);
 896
 897         fw_data_desc = qlcnic_get_data_desc(adapter, QLCNIC_UNI_DIR_SECT_FW,
 898                         QLCNIC_UNI_FIRMWARE_IDX_OFF);
 899         ver_str = fw->data + cpu_to_le32(fw_data_desc->findex) +
 900                 cpu_to_le32(fw_data_desc->size) - 17;
 901
 902         for (i = 0; i < 12; i++) {
 903                 if (!strncmp(&ver_str[i], "REV=", 4)) {
 904                         ret = sscanf(&ver_str[i+4], "%u.%u.%u ",
 905                                         &major, &minor, &sub);
 906                         if (ret != 3)
 907                                 return 0;
 908                         else
 909                                 return major + (minor << 8) + (sub << 16);
 910                 }
 911         }
 912
 913         return 0;
 914 }
 915
 916 static __le32
 917 qlcnic_get_bios_version(struct qlcnic_adapter *adapter)
 918 {
 919         const struct firmware *fw = adapter->fw;
 920         __le32 bios_ver, prd_off = adapter->file_prd_off;
 921
 922         if (adapter->fw_type != QLCNIC_UNIFIED_ROMIMAGE)
 923                 return cpu_to_le32(
 924                         *(u32 *)&fw->data[QLCNIC_BIOS_VERSION_OFFSET]);
 925
 926         bios_ver = cpu_to_le32(*((u32 *) (&fw->data[prd_off])
 927                                 + QLCNIC_UNI_BIOS_VERSION_OFF));
 928
 929         return (bios_ver << 16) + ((bios_ver >> 8) & 0xff00) + (bios_ver >> 24);
 930 }
 931
 932 static void qlcnic_rom_lock_recovery(struct qlcnic_adapter *adapter)
 933 {
 934         if (qlcnic_pcie_sem_lock(adapter, 2, QLCNIC_ROM_LOCK_ID))
 935                 dev_info(&adapter->pdev->dev, "Resetting rom_lock\n");
 936
 937         qlcnic_pcie_sem_unlock(adapter, 2);
 938 }
 939
 940 int
 941 qlcnic_need_fw_reset(struct qlcnic_adapter *adapter)
 942 {
 943         u32 val, version, major, minor, build;
 944
 945         if (qlcnic_check_fw_status(adapter)) {
 946                 qlcnic_rom_lock_recovery(adapter);
 947                 return 1;
 948         }
 949
 950         if (adapter->need_fw_reset)
 951                 return 1;
 952
 953         /* check if we have got newer or different file firmware */
 954         if (adapter->fw) {
 955
 956                 val = qlcnic_get_fw_version(adapter);
 957
 958                 version = QLCNIC_DECODE_VERSION(val);
 959
 960                 major = QLCRD32(adapter, QLCNIC_FW_VERSION_MAJOR);
 961                 minor = QLCRD32(adapter, QLCNIC_FW_VERSION_MINOR);
 962                 build = QLCRD32(adapter, QLCNIC_FW_VERSION_SUB);
 963
 964                 if (version > QLCNIC_VERSION_CODE(major, minor, build))
 965                         return 1;
 966         }
 967
 968         return 0;
 969 }
 970
 971 static const char *fw_name[] = {
 972         QLCNIC_UNIFIED_ROMIMAGE_NAME,
 973         QLCNIC_FLASH_ROMIMAGE_NAME,
 974 };
 975
 976 int
 977 qlcnic_load_firmware(struct qlcnic_adapter *adapter)
 978 {
 979         u64 *ptr64;
 980         u32 i, flashaddr, size;
 981         const struct firmware *fw = adapter->fw;
 982         struct pci_dev *pdev = adapter->pdev;
 983
 984         dev_info(&pdev->dev, "loading firmware from %s\n",
 985                         fw_name[adapter->fw_type]);
 986
 987         if (fw) {
 988                 __le64 data;
 989
 990                 size = (QLCNIC_IMAGE_START - QLCNIC_BOOTLD_START) / 8;
 991
 992                 ptr64 = (u64 *)qlcnic_get_bootld_offs(adapter);
 993                 flashaddr = QLCNIC_BOOTLD_START;
 994
 995                 for (i = 0; i < size; i++) {
 996                         data = cpu_to_le64(ptr64[i]);
 997
 998                         if (qlcnic_pci_mem_write_2M(adapter, flashaddr, data))
 999                                 return -EIO;
1000
1001                         flashaddr += 8;
1002                 }
1003
1004                 size = (__force u32)qlcnic_get_fw_size(adapter) / 8;
1005
1006                 ptr64 = (u64 *)qlcnic_get_fw_offs(adapter);
1007                 flashaddr = QLCNIC_IMAGE_START;
1008
1009                 for (i = 0; i < size; i++) {
1010                         data = cpu_to_le64(ptr64[i]);
1011
1012                         if (qlcnic_pci_mem_write_2M(adapter,
1013                                                 flashaddr, data))
1014                                 return -EIO;
1015
1016                         flashaddr += 8;
1017                 }
1018
1019                 size = (__force u32)qlcnic_get_fw_size(adapter) % 8;
1020                 if (size) {
1021                         data = cpu_to_le64(ptr64[i]);
1022
1023                         if (qlcnic_pci_mem_write_2M(adapter,
1024                                                 flashaddr, data))
1025                                 return -EIO;
1026                 }
1027
1028         } else {
1029                 u64 data;
1030                 u32 hi, lo;
1031
1032                 size = (QLCNIC_IMAGE_START - QLCNIC_BOOTLD_START) / 8;
1033                 flashaddr = QLCNIC_BOOTLD_START;
1034
1035                 for (i = 0; i < size; i++) {
1036                         if (qlcnic_rom_fast_read(adapter,
1037                                         flashaddr, (int *)&lo) != 0)
1038                                 return -EIO;
1039                         if (qlcnic_rom_fast_read(adapter,
1040                                         flashaddr + 4, (int *)&hi) != 0)
1041                                 return -EIO;
1042
1043                         data = (((u64)hi << 32) | lo);
1044
1045                         if (qlcnic_pci_mem_write_2M(adapter,
1046                                                 flashaddr, data))
1047                                 return -EIO;
1048
1049                         flashaddr += 8;
1050                 }
1051         }
1052         msleep(1);
1053
1054         QLCWR32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x18, 0x1020);
1055         QLCWR32(adapter, QLCNIC_ROMUSB_GLB_SW_RESET, 0x80001e);
1056         return 0;
1057 }
1058
1059 static int
1060 qlcnic_validate_firmware(struct qlcnic_adapter *adapter)
1061 {
1062         __le32 val;
1063         u32 ver, bios, min_size;
1064         struct pci_dev *pdev = adapter->pdev;
1065         const struct firmware *fw = adapter->fw;
1066         u8 fw_type = adapter->fw_type;
1067
1068         if (fw_type == QLCNIC_UNIFIED_ROMIMAGE) {
1069                 if (qlcnic_validate_unified_romimage(adapter))
1070                         return -EINVAL;
1071
1072                 min_size = QLCNIC_UNI_FW_MIN_SIZE;
1073         } else {
1074                 val = cpu_to_le32(*(u32 *)&fw->data[QLCNIC_FW_MAGIC_OFFSET]);
1075                 if ((__force u32)val != QLCNIC_BDINFO_MAGIC)
1076                         return -EINVAL;
1077
1078                 min_size = QLCNIC_FW_MIN_SIZE;
1079         }
1080
1081         if (fw->size < min_size)
1082                 return -EINVAL;
1083
1084         val = qlcnic_get_fw_version(adapter);
1085         ver = QLCNIC_DECODE_VERSION(val);
1086
1087         if (ver < QLCNIC_MIN_FW_VERSION) {
1088                 dev_err(&pdev->dev,
1089                                 "%s: firmware version %d.%d.%d unsupported\n",
1090                 fw_name[fw_type], _major(ver), _minor(ver), _build(ver));
1091                 return -EINVAL;
1092         }
1093
1094         val = qlcnic_get_bios_version(adapter);
1095         qlcnic_rom_fast_read(adapter, QLCNIC_BIOS_VERSION_OFFSET, (int *)&bios);
1096         if ((__force u32)val != bios) {
1097                 dev_err(&pdev->dev, "%s: firmware bios is incompatible\n",
1098                                 fw_name[fw_type]);
1099                 return -EINVAL;
1100         }
1101
1102         /* check if flashed firmware is newer */
1103         if (qlcnic_rom_fast_read(adapter,
1104                         QLCNIC_FW_VERSION_OFFSET, (int *)&val))
1105                 return -EIO;
1106
1107         val = QLCNIC_DECODE_VERSION(val);
1108         if (val > ver) {
1109                 dev_info(&pdev->dev, "%s: firmware is older than flash\n",
1110                                 fw_name[fw_type]);
1111                 return -EINVAL;
1112         }
1113
1114         QLCWR32(adapter, QLCNIC_CAM_RAM(0x1fc), QLCNIC_BDINFO_MAGIC);
1115         return 0;
1116 }
1117
1118 static void
1119 qlcnic_get_next_fwtype(struct qlcnic_adapter *adapter)
1120 {
1121         u8 fw_type;
1122
1123         switch (adapter->fw_type) {
1124         case QLCNIC_UNKNOWN_ROMIMAGE:
1125                 fw_type = QLCNIC_UNIFIED_ROMIMAGE;
1126                 break;
1127
1128         case QLCNIC_UNIFIED_ROMIMAGE:
1129         default:
1130                 fw_type = QLCNIC_FLASH_ROMIMAGE;
1131                 break;
1132         }
1133
1134         adapter->fw_type = fw_type;
1135 }
1136
1137
1138
1139 void qlcnic_request_firmware(struct qlcnic_adapter *adapter)
1140 {
1141         struct pci_dev *pdev = adapter->pdev;
1142         int rc;
1143
1144         adapter->fw_type = QLCNIC_UNKNOWN_ROMIMAGE;
1145
1146 next:
1147         qlcnic_get_next_fwtype(adapter);
1148
1149         if (adapter->fw_type == QLCNIC_FLASH_ROMIMAGE) {
1150                 adapter->fw = NULL;
1151         } else {
1152                 rc = request_firmware(&adapter->fw,
1153                                 fw_name[adapter->fw_type], &pdev->dev);
1154                 if (rc != 0)
1155                         goto next;
1156
1157                 rc = qlcnic_validate_firmware(adapter);
1158                 if (rc != 0) {
1159                         release_firmware(adapter->fw);
1160                         msleep(1);
1161                         goto next;
1162                 }
1163         }
1164 }
1165
1166
1167 void
1168 qlcnic_release_firmware(struct qlcnic_adapter *adapter)
1169 {
1170         if (adapter->fw)
1171                 release_firmware(adapter->fw);
1172         adapter->fw = NULL;
1173 }
1174
1175 static void
1176 qlcnic_handle_linkevent(struct qlcnic_adapter *adapter,
1177                                 struct qlcnic_fw_msg *msg)
1178 {
1179         u32 cable_OUI;
1180         u16 cable_len;
1181         u16 link_speed;
1182         u8  link_status, module, duplex, autoneg;
1183         struct net_device *netdev = adapter->netdev;
1184
1185         adapter->has_link_events = 1;
1186
1187         cable_OUI = msg->body[1] & 0xffffffff;
1188         cable_len = (msg->body[1] >> 32) & 0xffff;
1189         link_speed = (msg->body[1] >> 48) & 0xffff;
1190
1191         link_status = msg->body[2] & 0xff;
1192         duplex = (msg->body[2] >> 16) & 0xff;
1193         autoneg = (msg->body[2] >> 24) & 0xff;
1194
1195         module = (msg->body[2] >> 8) & 0xff;
1196         if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLE)
1197                 dev_info(&netdev->dev, "unsupported cable: OUI 0x%x, "
1198                                 "length %d\n", cable_OUI, cable_len);
1199         else if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLELEN)
1200                 dev_info(&netdev->dev, "unsupported cable length %d\n",
1201                                 cable_len);
1202
1203         qlcnic_advert_link_change(adapter, link_status);
1204
1205         if (duplex == LINKEVENT_FULL_DUPLEX)
1206                 adapter->link_duplex = DUPLEX_FULL;
1207         else
1208                 adapter->link_duplex = DUPLEX_HALF;
1209
1210         adapter->module_type = module;
1211         adapter->link_autoneg = autoneg;
1212         adapter->link_speed = link_speed;
1213 }
1214
1215 static void
1216 qlcnic_handle_fw_message(int desc_cnt, int index,
1217                 struct qlcnic_host_sds_ring *sds_ring)
1218 {
1219         struct qlcnic_fw_msg msg;
1220         struct status_desc *desc;
1221         int i = 0, opcode;
1222
1223         while (desc_cnt > 0 && i < 8) {
1224                 desc = &sds_ring->desc_head[index];
1225                 msg.words[i++] = le64_to_cpu(desc->status_desc_data[0]);
1226                 msg.words[i++] = le64_to_cpu(desc->status_desc_data[1]);
1227
1228                 index = get_next_index(index, sds_ring->num_desc);
1229                 desc_cnt--;
1230         }
1231
1232         opcode = qlcnic_get_nic_msg_opcode(msg.body[0]);
1233         switch (opcode) {
1234         case QLCNIC_C2H_OPCODE_GET_LINKEVENT_RESPONSE:
1235                 qlcnic_handle_linkevent(sds_ring->adapter, &msg);
1236                 break;
1237         default:
1238                 break;
1239         }
1240 }
1241
1242 static int
1243 qlcnic_alloc_rx_skb(struct qlcnic_adapter *adapter,
1244                 struct qlcnic_host_rds_ring *rds_ring,
1245                 struct qlcnic_rx_buffer *buffer)
1246 {
1247         struct sk_buff *skb;
1248         dma_addr_t dma;
1249         struct pci_dev *pdev = adapter->pdev;
1250
1251         skb = dev_alloc_skb(rds_ring->skb_size);
1252         if (!skb) {
1253                 adapter->stats.skb_alloc_failure++;
1254                 return -ENOMEM;
1255         }
1256
1257         skb_reserve(skb, 2);
1258
1259         dma = pci_map_single(pdev, skb->data,
1260                         rds_ring->dma_size, PCI_DMA_FROMDEVICE);
1261
1262         if (pci_dma_mapping_error(pdev, dma)) {
1263                 adapter->stats.rx_dma_map_error++;
1264                 dev_kfree_skb_any(skb);
1265                 return -ENOMEM;
1266         }
1267
1268         buffer->skb = skb;
1269         buffer->dma = dma;
1270
1271         return 0;
1272 }
1273
1274 static struct sk_buff *qlcnic_process_rxbuf(struct qlcnic_adapter *adapter,
1275                 struct qlcnic_host_rds_ring *rds_ring, u16 index, u16 cksum)
1276 {
1277         struct qlcnic_rx_buffer *buffer;
1278         struct sk_buff *skb;
1279
1280         buffer = &rds_ring->rx_buf_arr[index];
1281
1282         if (unlikely(buffer->skb == NULL)) {
1283                 WARN_ON(1);
1284                 return NULL;
1285         }
1286
1287         pci_unmap_single(adapter->pdev, buffer->dma, rds_ring->dma_size,
1288                         PCI_DMA_FROMDEVICE);
1289
1290         skb = buffer->skb;
1291
1292         if (likely(adapter->rx_csum && cksum == STATUS_CKSUM_OK)) {
1293                 adapter->stats.csummed++;
1294                 skb->ip_summed = CHECKSUM_UNNECESSARY;
1295         } else {
1296                 skb->ip_summed = CHECKSUM_NONE;
1297         }
1298
1299         skb->dev = adapter->netdev;
1300
1301         buffer->skb = NULL;
1302
1303         return skb;
1304 }
1305
1306 static int
1307 qlcnic_check_rx_tagging(struct qlcnic_adapter *adapter, struct sk_buff *skb)
1308 {
1309         u16 vlan_tag;
1310         struct ethhdr *eth_hdr;
1311
1312         if (!__vlan_get_tag(skb, &vlan_tag)) {
1313                 if (vlan_tag == adapter->pvid) {
1314                         /* strip the tag from the packet and send it up */
1315                         eth_hdr = (struct ethhdr *) skb->data;
1316                         memmove(skb->data + VLAN_HLEN, eth_hdr, ETH_ALEN * 2);
1317                         skb_pull(skb, VLAN_HLEN);
1318                         return 0;
1319                 }
1320         }
1321         if (adapter->flags & QLCNIC_TAGGING_ENABLED)
1322                 return 0;
1323
1324         return -EIO;
1325 }
1326
1327 static struct qlcnic_rx_buffer *
1328 qlcnic_process_rcv(struct qlcnic_adapter *adapter,
1329                 struct qlcnic_host_sds_ring *sds_ring,
1330                 int ring, u64 sts_data0)
1331 {
1332         struct net_device *netdev = adapter->netdev;
1333         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1334         struct qlcnic_rx_buffer *buffer;
1335         struct sk_buff *skb;
1336         struct qlcnic_host_rds_ring *rds_ring;
1337         int index, length, cksum, pkt_offset;
1338
1339         if (unlikely(ring >= adapter->max_rds_rings))
1340                 return NULL;
1341
1342         rds_ring = &recv_ctx->rds_rings[ring];
1343
1344         index = qlcnic_get_sts_refhandle(sts_data0);
1345         if (unlikely(index >= rds_ring->num_desc))
1346                 return NULL;
1347
1348         buffer = &rds_ring->rx_buf_arr[index];
1349
1350         length = qlcnic_get_sts_totallength(sts_data0);
1351         cksum  = qlcnic_get_sts_status(sts_data0);
1352         pkt_offset = qlcnic_get_sts_pkt_offset(sts_data0);
1353
1354         skb = qlcnic_process_rxbuf(adapter, rds_ring, index, cksum);
1355         if (!skb)
1356                 return buffer;
1357
1358         if (length > rds_ring->skb_size)
1359                 skb_put(skb, rds_ring->skb_size);
1360         else
1361                 skb_put(skb, length);
1362
1363         if (pkt_offset)
1364                 skb_pull(skb, pkt_offset);
1365
1366         skb->truesize = skb->len + sizeof(struct sk_buff);
1367
1368         if (unlikely(adapter->pvid)) {
1369                 if (qlcnic_check_rx_tagging(adapter, skb)) {
1370                         adapter->stats.rxdropped++;
1371                         dev_kfree_skb_any(skb);
1372                         return buffer;
1373                 }
1374         }
1375
1376         skb->protocol = eth_type_trans(skb, netdev);
1377
1378         napi_gro_receive(&sds_ring->napi, skb);
1379
1380         adapter->stats.rx_pkts++;
1381         adapter->stats.rxbytes += length;
1382
1383         return buffer;
1384 }
1385
1386 #define QLC_TCP_HDR_SIZE            20
1387 #define QLC_TCP_TS_OPTION_SIZE      12
1388 #define QLC_TCP_TS_HDR_SIZE         (QLC_TCP_HDR_SIZE + QLC_TCP_TS_OPTION_SIZE)
1389
1390 static struct qlcnic_rx_buffer *
1391 qlcnic_process_lro(struct qlcnic_adapter *adapter,
1392                 struct qlcnic_host_sds_ring *sds_ring,
1393                 int ring, u64 sts_data0, u64 sts_data1)
1394 {
1395         struct net_device *netdev = adapter->netdev;
1396         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1397         struct qlcnic_rx_buffer *buffer;
1398         struct sk_buff *skb;
1399         struct qlcnic_host_rds_ring *rds_ring;
1400         struct iphdr *iph;
1401         struct tcphdr *th;
1402         bool push, timestamp;
1403         int l2_hdr_offset, l4_hdr_offset;
1404         int index;
1405         u16 lro_length, length, data_offset;
1406         u32 seq_number;
1407
1408         if (unlikely(ring > adapter->max_rds_rings))
1409                 return NULL;
1410
1411         rds_ring = &recv_ctx->rds_rings[ring];
1412
1413         index = qlcnic_get_lro_sts_refhandle(sts_data0);
1414         if (unlikely(index > rds_ring->num_desc))
1415                 return NULL;
1416
1417         buffer = &rds_ring->rx_buf_arr[index];
1418
1419         timestamp = qlcnic_get_lro_sts_timestamp(sts_data0);
1420         lro_length = qlcnic_get_lro_sts_length(sts_data0);
1421         l2_hdr_offset = qlcnic_get_lro_sts_l2_hdr_offset(sts_data0);
1422         l4_hdr_offset = qlcnic_get_lro_sts_l4_hdr_offset(sts_data0);
1423         push = qlcnic_get_lro_sts_push_flag(sts_data0);
1424         seq_number = qlcnic_get_lro_sts_seq_number(sts_data1);
1425
1426         skb = qlcnic_process_rxbuf(adapter, rds_ring, index, STATUS_CKSUM_OK);
1427         if (!skb)
1428                 return buffer;
1429
1430         if (timestamp)
1431                 data_offset = l4_hdr_offset + QLC_TCP_TS_HDR_SIZE;
1432         else
1433                 data_offset = l4_hdr_offset + QLC_TCP_HDR_SIZE;
1434
1435         skb_put(skb, lro_length + data_offset);
1436
1437         skb->truesize = skb->len + sizeof(struct sk_buff) + skb_headroom(skb);
1438
1439         skb_pull(skb, l2_hdr_offset);
1440
1441         if (unlikely(adapter->pvid)) {
1442                 if (qlcnic_check_rx_tagging(adapter, skb)) {
1443                         adapter->stats.rxdropped++;
1444                         dev_kfree_skb_any(skb);
1445                         return buffer;
1446                 }
1447         }
1448         skb->protocol = eth_type_trans(skb, netdev);
1449
1450         iph = (struct iphdr *)skb->data;
1451         th = (struct tcphdr *)(skb->data + (iph->ihl << 2));
1452
1453         length = (iph->ihl << 2) + (th->doff << 2) + lro_length;
1454         iph->tot_len = htons(length);
1455         iph->check = 0;
1456         iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
1457         th->psh = push;
1458         th->seq = htonl(seq_number);
1459
1460         length = skb->len;
1461
1462         netif_receive_skb(skb);
1463
1464         adapter->stats.lro_pkts++;
1465         adapter->stats.lrobytes += length;
1466
1467         return buffer;
1468 }
1469
1470 int
1471 qlcnic_process_rcv_ring(struct qlcnic_host_sds_ring *sds_ring, int max)
1472 {
1473         struct qlcnic_adapter *adapter = sds_ring->adapter;
1474         struct list_head *cur;
1475         struct status_desc *desc;
1476         struct qlcnic_rx_buffer *rxbuf;
1477         u64 sts_data0, sts_data1;
1478
1479         int count = 0;
1480         int opcode, ring, desc_cnt;
1481         u32 consumer = sds_ring->consumer;
1482
1483         while (count < max) {
1484                 desc = &sds_ring->desc_head[consumer];
1485                 sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
1486
1487                 if (!(sts_data0 & STATUS_OWNER_HOST))
1488                         break;
1489
1490                 desc_cnt = qlcnic_get_sts_desc_cnt(sts_data0);
1491                 opcode = qlcnic_get_sts_opcode(sts_data0);
1492
1493                 switch (opcode) {
1494                 case QLCNIC_RXPKT_DESC:
1495                 case QLCNIC_OLD_RXPKT_DESC:
1496                 case QLCNIC_SYN_OFFLOAD:
1497                         ring = qlcnic_get_sts_type(sts_data0);
1498                         rxbuf = qlcnic_process_rcv(adapter, sds_ring,
1499                                         ring, sts_data0);
1500                         break;
1501                 case QLCNIC_LRO_DESC:
1502                         ring = qlcnic_get_lro_sts_type(sts_data0);
1503                         sts_data1 = le64_to_cpu(desc->status_desc_data[1]);
1504                         rxbuf = qlcnic_process_lro(adapter, sds_ring,
1505                                         ring, sts_data0, sts_data1);
1506                         break;
1507                 case QLCNIC_RESPONSE_DESC:
1508                         qlcnic_handle_fw_message(desc_cnt, consumer, sds_ring);
1509                 default:
1510                         goto skip;
1511                 }
1512
1513                 WARN_ON(desc_cnt > 1);
1514
1515                 if (likely(rxbuf))
1516                         list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]);
1517                 else
1518                         adapter->stats.null_rxbuf++;
1519
1520 skip:
1521                 for (; desc_cnt > 0; desc_cnt--) {
1522                         desc = &sds_ring->desc_head[consumer];
1523                         desc->status_desc_data[0] =
1524                                 cpu_to_le64(STATUS_OWNER_PHANTOM);
1525                         consumer = get_next_index(consumer, sds_ring->num_desc);
1526                 }
1527                 count++;
1528         }
1529
1530         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1531                 struct qlcnic_host_rds_ring *rds_ring =
1532                         &adapter->recv_ctx.rds_rings[ring];
1533
1534                 if (!list_empty(&sds_ring->free_list[ring])) {
1535                         list_for_each(cur, &sds_ring->free_list[ring]) {
1536                                 rxbuf = list_entry(cur,
1537                                                 struct qlcnic_rx_buffer, list);
1538                                 qlcnic_alloc_rx_skb(adapter, rds_ring, rxbuf);
1539                         }
1540                         spin_lock(&rds_ring->lock);
1541                         list_splice_tail_init(&sds_ring->free_list[ring],
1542                                                 &rds_ring->free_list);
1543                         spin_unlock(&rds_ring->lock);
1544                 }
1545
1546                 qlcnic_post_rx_buffers_nodb(adapter, rds_ring);
1547         }
1548
1549         if (count) {
1550                 sds_ring->consumer = consumer;
1551                 writel(consumer, sds_ring->crb_sts_consumer);
1552         }
1553
1554         return count;
1555 }
1556
1557 void
1558 qlcnic_post_rx_buffers(struct qlcnic_adapter *adapter, u32 ringid,
1559         struct qlcnic_host_rds_ring *rds_ring)
1560 {
1561         struct rcv_desc *pdesc;
1562         struct qlcnic_rx_buffer *buffer;
1563         int producer, count = 0;
1564         struct list_head *head;
1565
1566         producer = rds_ring->producer;
1567
1568         head = &rds_ring->free_list;
1569         while (!list_empty(head)) {
1570
1571                 buffer = list_entry(head->next, struct qlcnic_rx_buffer, list);
1572
1573                 if (!buffer->skb) {
1574                         if (qlcnic_alloc_rx_skb(adapter, rds_ring, buffer))
1575                                 break;
1576                 }
1577
1578                 count++;
1579                 list_del(&buffer->list);
1580
1581                 /* make a rcv descriptor  */
1582                 pdesc = &rds_ring->desc_head[producer];
1583                 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1584                 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1585                 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1586
1587                 producer = get_next_index(producer, rds_ring->num_desc);
1588         }
1589
1590         if (count) {
1591                 rds_ring->producer = producer;
1592                 writel((producer-1) & (rds_ring->num_desc-1),
1593                                 rds_ring->crb_rcv_producer);
1594         }
1595 }
1596
1597 static void
1598 qlcnic_post_rx_buffers_nodb(struct qlcnic_adapter *adapter,
1599                 struct qlcnic_host_rds_ring *rds_ring)
1600 {
1601         struct rcv_desc *pdesc;
1602         struct qlcnic_rx_buffer *buffer;
1603         int producer, count = 0;
1604         struct list_head *head;
1605
1606         if (!spin_trylock(&rds_ring->lock))
1607                 return;
1608
1609         producer = rds_ring->producer;
1610
1611         head = &rds_ring->free_list;
1612         while (!list_empty(head)) {
1613
1614                 buffer = list_entry(head->next, struct qlcnic_rx_buffer, list);
1615
1616                 if (!buffer->skb) {
1617                         if (qlcnic_alloc_rx_skb(adapter, rds_ring, buffer))
1618                                 break;
1619                 }
1620
1621                 count++;
1622                 list_del(&buffer->list);
1623
1624                 /* make a rcv descriptor  */
1625                 pdesc = &rds_ring->desc_head[producer];
1626                 pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
1627                 pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
1628                 pdesc->addr_buffer = cpu_to_le64(buffer->dma);
1629
1630                 producer = get_next_index(producer, rds_ring->num_desc);
1631         }
1632
1633         if (count) {
1634                 rds_ring->producer = producer;
1635                 writel((producer - 1) & (rds_ring->num_desc - 1),
1636                                 rds_ring->crb_rcv_producer);
1637         }
1638         spin_unlock(&rds_ring->lock);
1639 }
1640
1641 static struct qlcnic_rx_buffer *
1642 qlcnic_process_rcv_diag(struct qlcnic_adapter *adapter,
1643                 struct qlcnic_host_sds_ring *sds_ring,
1644                 int ring, u64 sts_data0)
1645 {
1646         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1647         struct qlcnic_rx_buffer *buffer;
1648         struct sk_buff *skb;
1649         struct qlcnic_host_rds_ring *rds_ring;
1650         int index, length, cksum, pkt_offset;
1651
1652         if (unlikely(ring >= adapter->max_rds_rings))
1653                 return NULL;
1654
1655         rds_ring = &recv_ctx->rds_rings[ring];
1656
1657         index = qlcnic_get_sts_refhandle(sts_data0);
1658         if (unlikely(index >= rds_ring->num_desc))
1659                 return NULL;
1660
1661         buffer = &rds_ring->rx_buf_arr[index];
1662
1663         length = qlcnic_get_sts_totallength(sts_data0);
1664         cksum  = qlcnic_get_sts_status(sts_data0);
1665         pkt_offset = qlcnic_get_sts_pkt_offset(sts_data0);
1666
1667         skb = qlcnic_process_rxbuf(adapter, rds_ring, index, cksum);
1668         if (!skb)
1669                 return buffer;
1670
1671         skb_put(skb, rds_ring->skb_size);
1672
1673         if (pkt_offset)
1674                 skb_pull(skb, pkt_offset);
1675
1676         skb->truesize = skb->len + sizeof(struct sk_buff);
1677
1678         if (!qlcnic_check_loopback_buff(skb->data))
1679                 adapter->diag_cnt++;
1680
1681         dev_kfree_skb_any(skb);
1682         adapter->stats.rx_pkts++;
1683         adapter->stats.rxbytes += length;
1684
1685         return buffer;
1686 }
1687
1688 void
1689 qlcnic_process_rcv_ring_diag(struct qlcnic_host_sds_ring *sds_ring)
1690 {
1691         struct qlcnic_adapter *adapter = sds_ring->adapter;
1692         struct status_desc *desc;
1693         struct qlcnic_rx_buffer *rxbuf;
1694         u64 sts_data0;
1695
1696         int opcode, ring, desc_cnt;
1697         u32 consumer = sds_ring->consumer;
1698
1699         desc = &sds_ring->desc_head[consumer];
1700         sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
1701
1702         if (!(sts_data0 & STATUS_OWNER_HOST))
1703                 return;
1704
1705         desc_cnt = qlcnic_get_sts_desc_cnt(sts_data0);
1706         opcode = qlcnic_get_sts_opcode(sts_data0);
1707
1708         ring = qlcnic_get_sts_type(sts_data0);
1709         rxbuf = qlcnic_process_rcv_diag(adapter, sds_ring,
1710                                         ring, sts_data0);
1711
1712         desc->status_desc_data[0] = cpu_to_le64(STATUS_OWNER_PHANTOM);
1713         consumer = get_next_index(consumer, sds_ring->num_desc);
1714
1715         sds_ring->consumer = consumer;
1716         writel(consumer, sds_ring->crb_sts_consumer);
1717 }
1718
1719 void
1720 qlcnic_fetch_mac(struct qlcnic_adapter *adapter, u32 off1, u32 off2,
1721                         u8 alt_mac, u8 *mac)
1722 {
1723         u32 mac_low, mac_high;
1724         int i;
1725
1726         mac_low = QLCRD32(adapter, off1);
1727         mac_high = QLCRD32(adapter, off2);
1728
1729         if (alt_mac) {
1730                 mac_low |= (mac_low >> 16) | (mac_high << 16);
1731                 mac_high >>= 16;
1732         }
1733
1734         for (i = 0; i < 2; i++)
1735                 mac[i] = (u8)(mac_high >> ((1 - i) * 8));
1736         for (i = 2; i < 6; i++)
1737                 mac[i] = (u8)(mac_low >> ((5 - i) * 8));
1738 }