git.oblomov.eu Git - linux-2.6/blob - drivers/net/netxen/netxen_nic_ctx.c

   1 /*
   2  * Copyright (C) 2003 - 2009 NetXen, Inc.
   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 LICENSE.
  22  *
  23  * Contact Information:
  24  *    info@netxen.com
  25  * NetXen Inc,
  26  * 18922 Forge Drive
  27  * Cupertino, CA 95014-0701
  28  *
  29  */
  30
  31 #include "netxen_nic_hw.h"
  32 #include "netxen_nic.h"
  33 #include "netxen_nic_phan_reg.h"
  34
  35 #define NXHAL_VERSION   1
  36
  37 static int
  38 netxen_api_lock(struct netxen_adapter *adapter)
  39 {
  40         u32 done = 0, timeout = 0;
  41
  42         for (;;) {
  43                 /* Acquire PCIE HW semaphore5 */
  44                 netxen_nic_read_w0(adapter,
  45                         NETXEN_PCIE_REG(PCIE_SEM5_LOCK), &done);
  46
  47                 if (done == 1)
  48                         break;
  49
  50                 if (++timeout >= NX_OS_CRB_RETRY_COUNT) {
  51                         printk(KERN_ERR "%s: lock timeout.\n", __func__);
  52                         return -1;
  53                 }
  54
  55                 msleep(1);
  56         }
  57
  58 #if 0
  59         netxen_nic_write_w1(adapter,
  60                 NETXEN_API_LOCK_ID, NX_OS_API_LOCK_DRIVER);
  61 #endif
  62         return 0;
  63 }
  64
  65 static int
  66 netxen_api_unlock(struct netxen_adapter *adapter)
  67 {
  68         u32 val;
  69
  70         /* Release PCIE HW semaphore5 */
  71         netxen_nic_read_w0(adapter,
  72                 NETXEN_PCIE_REG(PCIE_SEM5_UNLOCK), &val);
  73         return 0;
  74 }
  75
  76 static u32
  77 netxen_poll_rsp(struct netxen_adapter *adapter)
  78 {
  79         u32 rsp = NX_CDRP_RSP_OK;
  80         int     timeout = 0;
  81
  82         do {
  83                 /* give atleast 1ms for firmware to respond */
  84                 msleep(1);
  85
  86                 if (++timeout > NX_OS_CRB_RETRY_COUNT)
  87                         return NX_CDRP_RSP_TIMEOUT;
  88
  89                 netxen_nic_read_w1(adapter, NX_CDRP_CRB_OFFSET, &rsp);
  90         } while (!NX_CDRP_IS_RSP(rsp));
  91
  92         return rsp;
  93 }
  94
  95 static u32
  96 netxen_issue_cmd(struct netxen_adapter *adapter,
  97         u32 pci_fn, u32 version, u32 arg1, u32 arg2, u32 arg3, u32 cmd)
  98 {
  99         u32 rsp;
 100         u32 signature = 0;
 101         u32 rcode = NX_RCODE_SUCCESS;
 102
 103         signature = NX_CDRP_SIGNATURE_MAKE(pci_fn, version);
 104
 105         /* Acquire semaphore before accessing CRB */
 106         if (netxen_api_lock(adapter))
 107                 return NX_RCODE_TIMEOUT;
 108
 109         netxen_nic_write_w1(adapter, NX_SIGN_CRB_OFFSET, signature);
 110
 111         netxen_nic_write_w1(adapter, NX_ARG1_CRB_OFFSET, arg1);
 112
 113         netxen_nic_write_w1(adapter, NX_ARG2_CRB_OFFSET, arg2);
 114
 115         netxen_nic_write_w1(adapter, NX_ARG3_CRB_OFFSET, arg3);
 116
 117         netxen_nic_write_w1(adapter, NX_CDRP_CRB_OFFSET,
 118                         NX_CDRP_FORM_CMD(cmd));
 119
 120         rsp = netxen_poll_rsp(adapter);
 121
 122         if (rsp == NX_CDRP_RSP_TIMEOUT) {
 123                 printk(KERN_ERR "%s: card response timeout.\n",
 124                                 netxen_nic_driver_name);
 125
 126                 rcode = NX_RCODE_TIMEOUT;
 127         } else if (rsp == NX_CDRP_RSP_FAIL) {
 128                 netxen_nic_read_w1(adapter, NX_ARG1_CRB_OFFSET, &rcode);
 129
 130                 printk(KERN_ERR "%s: failed card response code:0x%x\n",
 131                                 netxen_nic_driver_name, rcode);
 132         }
 133
 134         /* Release semaphore */
 135         netxen_api_unlock(adapter);
 136
 137         return rcode;
 138 }
 139
 140 int
 141 nx_fw_cmd_set_mtu(struct netxen_adapter *adapter, int mtu)
 142 {
 143         u32 rcode = NX_RCODE_SUCCESS;
 144         struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
 145
 146         if (recv_ctx->state == NX_HOST_CTX_STATE_ACTIVE)
 147                 rcode = netxen_issue_cmd(adapter,
 148                                 adapter->ahw.pci_func,
 149                                 NXHAL_VERSION,
 150                                 recv_ctx->context_id,
 151                                 mtu,
 152                                 0,
 153                                 NX_CDRP_CMD_SET_MTU);
 154
 155         if (rcode != NX_RCODE_SUCCESS)
 156                 return -EIO;
 157
 158         return 0;
 159 }
 160
 161 static int
 162 nx_fw_cmd_create_rx_ctx(struct netxen_adapter *adapter)
 163 {
 164         void *addr;
 165         nx_hostrq_rx_ctx_t *prq;
 166         nx_cardrsp_rx_ctx_t *prsp;
 167         nx_hostrq_rds_ring_t *prq_rds;
 168         nx_hostrq_sds_ring_t *prq_sds;
 169         nx_cardrsp_rds_ring_t *prsp_rds;
 170         nx_cardrsp_sds_ring_t *prsp_sds;
 171         struct nx_host_rds_ring *rds_ring;
 172         struct nx_host_sds_ring *sds_ring;
 173
 174         dma_addr_t hostrq_phys_addr, cardrsp_phys_addr;
 175         u64 phys_addr;
 176
 177         int i, nrds_rings, nsds_rings;
 178         size_t rq_size, rsp_size;
 179         u32 cap, reg, val;
 180
 181         int err;
 182
 183         struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
 184
 185         nrds_rings = adapter->max_rds_rings;
 186         nsds_rings = adapter->max_sds_rings;
 187
 188         rq_size =
 189                 SIZEOF_HOSTRQ_RX(nx_hostrq_rx_ctx_t, nrds_rings, nsds_rings);
 190         rsp_size =
 191                 SIZEOF_CARDRSP_RX(nx_cardrsp_rx_ctx_t, nrds_rings, nsds_rings);
 192
 193         addr = pci_alloc_consistent(adapter->pdev,
 194                                 rq_size, &hostrq_phys_addr);
 195         if (addr == NULL)
 196                 return -ENOMEM;
 197         prq = (nx_hostrq_rx_ctx_t *)addr;
 198
 199         addr = pci_alloc_consistent(adapter->pdev,
 200                         rsp_size, &cardrsp_phys_addr);
 201         if (addr == NULL) {
 202                 err = -ENOMEM;
 203                 goto out_free_rq;
 204         }
 205         prsp = (nx_cardrsp_rx_ctx_t *)addr;
 206
 207         prq->host_rsp_dma_addr = cpu_to_le64(cardrsp_phys_addr);
 208
 209         cap = (NX_CAP0_LEGACY_CONTEXT | NX_CAP0_LEGACY_MN);
 210         cap |= (NX_CAP0_JUMBO_CONTIGUOUS | NX_CAP0_LRO_CONTIGUOUS);
 211
 212         prq->capabilities[0] = cpu_to_le32(cap);
 213         prq->host_int_crb_mode =
 214                 cpu_to_le32(NX_HOST_INT_CRB_MODE_SHARED);
 215         prq->host_rds_crb_mode =
 216                 cpu_to_le32(NX_HOST_RDS_CRB_MODE_UNIQUE);
 217
 218         prq->num_rds_rings = cpu_to_le16(nrds_rings);
 219         prq->num_sds_rings = cpu_to_le16(nsds_rings);
 220         prq->rds_ring_offset = cpu_to_le32(0);
 221
 222         val = le32_to_cpu(prq->rds_ring_offset) +
 223                 (sizeof(nx_hostrq_rds_ring_t) * nrds_rings);
 224         prq->sds_ring_offset = cpu_to_le32(val);
 225
 226         prq_rds = (nx_hostrq_rds_ring_t *)(prq->data +
 227                         le32_to_cpu(prq->rds_ring_offset));
 228
 229         for (i = 0; i < nrds_rings; i++) {
 230
 231                 rds_ring = &recv_ctx->rds_rings[i];
 232
 233                 prq_rds[i].host_phys_addr = cpu_to_le64(rds_ring->phys_addr);
 234                 prq_rds[i].ring_size = cpu_to_le32(rds_ring->num_desc);
 235                 prq_rds[i].ring_kind = cpu_to_le32(i);
 236                 prq_rds[i].buff_size = cpu_to_le64(rds_ring->dma_size);
 237         }
 238
 239         prq_sds = (nx_hostrq_sds_ring_t *)(prq->data +
 240                         le32_to_cpu(prq->sds_ring_offset));
 241
 242         for (i = 0; i < nsds_rings; i++) {
 243
 244                 sds_ring = &recv_ctx->sds_rings[i];
 245
 246                 prq_sds[i].host_phys_addr = cpu_to_le64(sds_ring->phys_addr);
 247                 prq_sds[i].ring_size = cpu_to_le32(sds_ring->num_desc);
 248                 prq_sds[i].msi_index = cpu_to_le16(i);
 249         }
 250
 251         phys_addr = hostrq_phys_addr;
 252         err = netxen_issue_cmd(adapter,
 253                         adapter->ahw.pci_func,
 254                         NXHAL_VERSION,
 255                         (u32)(phys_addr >> 32),
 256                         (u32)(phys_addr & 0xffffffff),
 257                         rq_size,
 258                         NX_CDRP_CMD_CREATE_RX_CTX);
 259         if (err) {
 260                 printk(KERN_WARNING
 261                         "Failed to create rx ctx in firmware%d\n", err);
 262                 goto out_free_rsp;
 263         }
 264
 265
 266         prsp_rds = ((nx_cardrsp_rds_ring_t *)
 267                          &prsp->data[le32_to_cpu(prsp->rds_ring_offset)]);
 268
 269         for (i = 0; i < le16_to_cpu(prsp->num_rds_rings); i++) {
 270                 rds_ring = &recv_ctx->rds_rings[i];
 271
 272                 reg = le32_to_cpu(prsp_rds[i].host_producer_crb);
 273                 rds_ring->crb_rcv_producer = NETXEN_NIC_REG(reg - 0x200);
 274         }
 275
 276         prsp_sds = ((nx_cardrsp_sds_ring_t *)
 277                         &prsp->data[le32_to_cpu(prsp->sds_ring_offset)]);
 278
 279         for (i = 0; i < le16_to_cpu(prsp->num_sds_rings); i++) {
 280                 sds_ring = &recv_ctx->sds_rings[i];
 281
 282                 reg = le32_to_cpu(prsp_sds[i].host_consumer_crb);
 283                 sds_ring->crb_sts_consumer = NETXEN_NIC_REG(reg - 0x200);
 284
 285                 reg = le32_to_cpu(prsp_sds[i].interrupt_crb);
 286                 sds_ring->crb_intr_mask = NETXEN_NIC_REG(reg - 0x200);
 287         }
 288
 289         recv_ctx->state = le32_to_cpu(prsp->host_ctx_state);
 290         recv_ctx->context_id = le16_to_cpu(prsp->context_id);
 291         recv_ctx->virt_port = prsp->virt_port;
 292
 293 out_free_rsp:
 294         pci_free_consistent(adapter->pdev, rsp_size, prsp, cardrsp_phys_addr);
 295 out_free_rq:
 296         pci_free_consistent(adapter->pdev, rq_size, prq, hostrq_phys_addr);
 297         return err;
 298 }
 299
 300 static void
 301 nx_fw_cmd_destroy_rx_ctx(struct netxen_adapter *adapter)
 302 {
 303         struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
 304
 305         if (netxen_issue_cmd(adapter,
 306                         adapter->ahw.pci_func,
 307                         NXHAL_VERSION,
 308                         recv_ctx->context_id,
 309                         NX_DESTROY_CTX_RESET,
 310                         0,
 311                         NX_CDRP_CMD_DESTROY_RX_CTX)) {
 312
 313                 printk(KERN_WARNING
 314                         "%s: Failed to destroy rx ctx in firmware\n",
 315                         netxen_nic_driver_name);
 316         }
 317 }
 318
 319 static int
 320 nx_fw_cmd_create_tx_ctx(struct netxen_adapter *adapter)
 321 {
 322         nx_hostrq_tx_ctx_t      *prq;
 323         nx_hostrq_cds_ring_t    *prq_cds;
 324         nx_cardrsp_tx_ctx_t     *prsp;
 325         void    *rq_addr, *rsp_addr;
 326         size_t  rq_size, rsp_size;
 327         u32     temp;
 328         int     err = 0;
 329         u64     offset, phys_addr;
 330         dma_addr_t      rq_phys_addr, rsp_phys_addr;
 331
 332         rq_size = SIZEOF_HOSTRQ_TX(nx_hostrq_tx_ctx_t);
 333         rq_addr = pci_alloc_consistent(adapter->pdev,
 334                 rq_size, &rq_phys_addr);
 335         if (!rq_addr)
 336                 return -ENOMEM;
 337
 338         rsp_size = SIZEOF_CARDRSP_TX(nx_cardrsp_tx_ctx_t);
 339         rsp_addr = pci_alloc_consistent(adapter->pdev,
 340                 rsp_size, &rsp_phys_addr);
 341         if (!rsp_addr) {
 342                 err = -ENOMEM;
 343                 goto out_free_rq;
 344         }
 345
 346         memset(rq_addr, 0, rq_size);
 347         prq = (nx_hostrq_tx_ctx_t *)rq_addr;
 348
 349         memset(rsp_addr, 0, rsp_size);
 350         prsp = (nx_cardrsp_tx_ctx_t *)rsp_addr;
 351
 352         prq->host_rsp_dma_addr = cpu_to_le64(rsp_phys_addr);
 353
 354         temp = (NX_CAP0_LEGACY_CONTEXT | NX_CAP0_LEGACY_MN | NX_CAP0_LSO);
 355         prq->capabilities[0] = cpu_to_le32(temp);
 356
 357         prq->host_int_crb_mode =
 358                 cpu_to_le32(NX_HOST_INT_CRB_MODE_SHARED);
 359
 360         prq->interrupt_ctl = 0;
 361         prq->msi_index = 0;
 362
 363         prq->dummy_dma_addr = cpu_to_le64(adapter->dummy_dma.phys_addr);
 364
 365         offset = adapter->ctx_desc_phys_addr+sizeof(struct netxen_ring_ctx);
 366         prq->cmd_cons_dma_addr = cpu_to_le64(offset);
 367
 368         prq_cds = &prq->cds_ring;
 369
 370         prq_cds->host_phys_addr =
 371                 cpu_to_le64(adapter->ahw.cmd_desc_phys_addr);
 372
 373         prq_cds->ring_size = cpu_to_le32(adapter->num_txd);
 374
 375         phys_addr = rq_phys_addr;
 376         err = netxen_issue_cmd(adapter,
 377                         adapter->ahw.pci_func,
 378                         NXHAL_VERSION,
 379                         (u32)(phys_addr >> 32),
 380                         ((u32)phys_addr & 0xffffffff),
 381                         rq_size,
 382                         NX_CDRP_CMD_CREATE_TX_CTX);
 383
 384         if (err == NX_RCODE_SUCCESS) {
 385                 temp = le32_to_cpu(prsp->cds_ring.host_producer_crb);
 386                 adapter->crb_addr_cmd_producer =
 387                         NETXEN_NIC_REG(temp - 0x200);
 388 #if 0
 389                 adapter->tx_state =
 390                         le32_to_cpu(prsp->host_ctx_state);
 391 #endif
 392                 adapter->tx_context_id =
 393                         le16_to_cpu(prsp->context_id);
 394         } else {
 395                 printk(KERN_WARNING
 396                         "Failed to create tx ctx in firmware%d\n", err);
 397                 err = -EIO;
 398         }
 399
 400         pci_free_consistent(adapter->pdev, rsp_size, rsp_addr, rsp_phys_addr);
 401
 402 out_free_rq:
 403         pci_free_consistent(adapter->pdev, rq_size, rq_addr, rq_phys_addr);
 404
 405         return err;
 406 }
 407
 408 static void
 409 nx_fw_cmd_destroy_tx_ctx(struct netxen_adapter *adapter)
 410 {
 411         if (netxen_issue_cmd(adapter,
 412                         adapter->ahw.pci_func,
 413                         NXHAL_VERSION,
 414                         adapter->tx_context_id,
 415                         NX_DESTROY_CTX_RESET,
 416                         0,
 417                         NX_CDRP_CMD_DESTROY_TX_CTX)) {
 418
 419                 printk(KERN_WARNING
 420                         "%s: Failed to destroy tx ctx in firmware\n",
 421                         netxen_nic_driver_name);
 422         }
 423 }
 424
 425 static u64 ctx_addr_sig_regs[][3] = {
 426         {NETXEN_NIC_REG(0x188), NETXEN_NIC_REG(0x18c), NETXEN_NIC_REG(0x1c0)},
 427         {NETXEN_NIC_REG(0x190), NETXEN_NIC_REG(0x194), NETXEN_NIC_REG(0x1c4)},
 428         {NETXEN_NIC_REG(0x198), NETXEN_NIC_REG(0x19c), NETXEN_NIC_REG(0x1c8)},
 429         {NETXEN_NIC_REG(0x1a0), NETXEN_NIC_REG(0x1a4), NETXEN_NIC_REG(0x1cc)}
 430 };
 431
 432 #define CRB_CTX_ADDR_REG_LO(FUNC_ID)    (ctx_addr_sig_regs[FUNC_ID][0])
 433 #define CRB_CTX_ADDR_REG_HI(FUNC_ID)    (ctx_addr_sig_regs[FUNC_ID][2])
 434 #define CRB_CTX_SIGNATURE_REG(FUNC_ID)  (ctx_addr_sig_regs[FUNC_ID][1])
 435
 436 #define lower32(x)      ((u32)((x) & 0xffffffff))
 437 #define upper32(x)      ((u32)(((u64)(x) >> 32) & 0xffffffff))
 438
 439 static struct netxen_recv_crb recv_crb_registers[] = {
 440         /* Instance 0 */
 441         {
 442                 /* crb_rcv_producer: */
 443                 {
 444                         NETXEN_NIC_REG(0x100),
 445                         /* Jumbo frames */
 446                         NETXEN_NIC_REG(0x110),
 447                         /* LRO */
 448                         NETXEN_NIC_REG(0x120)
 449                 },
 450                 /* crb_sts_consumer: */
 451                 NETXEN_NIC_REG(0x138),
 452         },
 453         /* Instance 1 */
 454         {
 455                 /* crb_rcv_producer: */
 456                 {
 457                         NETXEN_NIC_REG(0x144),
 458                         /* Jumbo frames */
 459                         NETXEN_NIC_REG(0x154),
 460                         /* LRO */
 461                         NETXEN_NIC_REG(0x164)
 462                 },
 463                 /* crb_sts_consumer: */
 464                 NETXEN_NIC_REG(0x17c),
 465         },
 466         /* Instance 2 */
 467         {
 468                 /* crb_rcv_producer: */
 469                 {
 470                         NETXEN_NIC_REG(0x1d8),
 471                         /* Jumbo frames */
 472                         NETXEN_NIC_REG(0x1f8),
 473                         /* LRO */
 474                         NETXEN_NIC_REG(0x208)
 475                 },
 476                 /* crb_sts_consumer: */
 477                 NETXEN_NIC_REG(0x220),
 478         },
 479         /* Instance 3 */
 480         {
 481                 /* crb_rcv_producer: */
 482                 {
 483                         NETXEN_NIC_REG(0x22c),
 484                         /* Jumbo frames */
 485                         NETXEN_NIC_REG(0x23c),
 486                         /* LRO */
 487                         NETXEN_NIC_REG(0x24c)
 488                 },
 489                 /* crb_sts_consumer: */
 490                 NETXEN_NIC_REG(0x264),
 491         },
 492 };
 493
 494 static int
 495 netxen_init_old_ctx(struct netxen_adapter *adapter)
 496 {
 497         struct netxen_recv_context *recv_ctx;
 498         struct nx_host_rds_ring *rds_ring;
 499         struct nx_host_sds_ring *sds_ring;
 500         int ring;
 501         int func_id = adapter->portnum;
 502
 503         adapter->ctx_desc->cmd_ring_addr =
 504                 cpu_to_le64(adapter->ahw.cmd_desc_phys_addr);
 505         adapter->ctx_desc->cmd_ring_size =
 506                 cpu_to_le32(adapter->num_txd);
 507
 508         recv_ctx = &adapter->recv_ctx;
 509
 510         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
 511                 rds_ring = &recv_ctx->rds_rings[ring];
 512
 513                 adapter->ctx_desc->rcv_ctx[ring].rcv_ring_addr =
 514                         cpu_to_le64(rds_ring->phys_addr);
 515                 adapter->ctx_desc->rcv_ctx[ring].rcv_ring_size =
 516                         cpu_to_le32(rds_ring->num_desc);
 517         }
 518         sds_ring = &recv_ctx->sds_rings[0];
 519         adapter->ctx_desc->sts_ring_addr = cpu_to_le64(sds_ring->phys_addr);
 520         adapter->ctx_desc->sts_ring_size = cpu_to_le32(sds_ring->num_desc);
 521
 522         adapter->pci_write_normalize(adapter, CRB_CTX_ADDR_REG_LO(func_id),
 523                         lower32(adapter->ctx_desc_phys_addr));
 524         adapter->pci_write_normalize(adapter, CRB_CTX_ADDR_REG_HI(func_id),
 525                         upper32(adapter->ctx_desc_phys_addr));
 526         adapter->pci_write_normalize(adapter, CRB_CTX_SIGNATURE_REG(func_id),
 527                         NETXEN_CTX_SIGNATURE | func_id);
 528         return 0;
 529 }
 530
 531 static uint32_t sw_int_mask[4] = {
 532         CRB_SW_INT_MASK_0, CRB_SW_INT_MASK_1,
 533         CRB_SW_INT_MASK_2, CRB_SW_INT_MASK_3
 534 };
 535
 536 int netxen_alloc_hw_resources(struct netxen_adapter *adapter)
 537 {
 538         struct netxen_hardware_context *hw = &adapter->ahw;
 539         u32 state = 0;
 540         void *addr;
 541         int err = 0;
 542         int ring;
 543         struct netxen_recv_context *recv_ctx;
 544         struct nx_host_rds_ring *rds_ring;
 545         struct nx_host_sds_ring *sds_ring;
 546
 547         struct pci_dev *pdev = adapter->pdev;
 548         struct net_device *netdev = adapter->netdev;
 549
 550         err = netxen_receive_peg_ready(adapter);
 551         if (err) {
 552                 printk(KERN_ERR "Rcv Peg initialization not complete:%x.\n",
 553                                 state);
 554                 return err;
 555         }
 556
 557         addr = pci_alloc_consistent(pdev,
 558                         sizeof(struct netxen_ring_ctx) + sizeof(uint32_t),
 559                         &adapter->ctx_desc_phys_addr);
 560
 561         if (addr == NULL) {
 562                 dev_err(&pdev->dev, "failed to allocate hw context\n");
 563                 return -ENOMEM;
 564         }
 565         memset(addr, 0, sizeof(struct netxen_ring_ctx));
 566         adapter->ctx_desc = (struct netxen_ring_ctx *)addr;
 567         adapter->ctx_desc->ctx_id = cpu_to_le32(adapter->portnum);
 568         adapter->ctx_desc->cmd_consumer_offset =
 569                 cpu_to_le64(adapter->ctx_desc_phys_addr +
 570                         sizeof(struct netxen_ring_ctx));
 571         adapter->cmd_consumer =
 572                 (__le32 *)(((char *)addr) + sizeof(struct netxen_ring_ctx));
 573
 574         /* cmd desc ring */
 575         addr = pci_alloc_consistent(pdev,
 576                         TX_DESC_RINGSIZE(adapter),
 577                         &hw->cmd_desc_phys_addr);
 578
 579         if (addr == NULL) {
 580                 dev_err(&pdev->dev, "%s: failed to allocate tx desc ring\n",
 581                                 netdev->name);
 582                 return -ENOMEM;
 583         }
 584
 585         hw->cmd_desc_head = (struct cmd_desc_type0 *)addr;
 586
 587         recv_ctx = &adapter->recv_ctx;
 588
 589         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
 590                 rds_ring = &recv_ctx->rds_rings[ring];
 591                 addr = pci_alloc_consistent(adapter->pdev,
 592                                 RCV_DESC_RINGSIZE(rds_ring),
 593                                 &rds_ring->phys_addr);
 594                 if (addr == NULL) {
 595                         dev_err(&pdev->dev,
 596                                 "%s: failed to allocate rds ring [%d]\n",
 597                                 netdev->name, ring);
 598                         err = -ENOMEM;
 599                         goto err_out_free;
 600                 }
 601                 rds_ring->desc_head = (struct rcv_desc *)addr;
 602
 603                 if (adapter->fw_major < 4)
 604                         rds_ring->crb_rcv_producer =
 605                                 recv_crb_registers[adapter->portnum].
 606                                 crb_rcv_producer[ring];
 607         }
 608
 609         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 610                 sds_ring = &recv_ctx->sds_rings[ring];
 611
 612                 addr = pci_alloc_consistent(adapter->pdev,
 613                                 STATUS_DESC_RINGSIZE(sds_ring),
 614                                 &sds_ring->phys_addr);
 615                 if (addr == NULL) {
 616                         dev_err(&pdev->dev,
 617                                 "%s: failed to allocate sds ring [%d]\n",
 618                                 netdev->name, ring);
 619                         err = -ENOMEM;
 620                         goto err_out_free;
 621                 }
 622                 sds_ring->desc_head = (struct status_desc *)addr;
 623         }
 624
 625
 626         if (adapter->fw_major >= 4) {
 627                 adapter->intr_scheme = INTR_SCHEME_PERPORT;
 628                 adapter->msi_mode = MSI_MODE_MULTIFUNC;
 629
 630                 err = nx_fw_cmd_create_rx_ctx(adapter);
 631                 if (err)
 632                         goto err_out_free;
 633                 err = nx_fw_cmd_create_tx_ctx(adapter);
 634                 if (err)
 635                         goto err_out_free;
 636         } else {
 637                 sds_ring = &recv_ctx->sds_rings[0];
 638                 sds_ring->crb_sts_consumer =
 639                         recv_crb_registers[adapter->portnum].crb_sts_consumer;
 640
 641                 adapter->intr_scheme = adapter->pci_read_normalize(adapter,
 642                                 CRB_NIC_CAPABILITIES_FW);
 643                 adapter->msi_mode = adapter->pci_read_normalize(adapter,
 644                                 CRB_NIC_MSI_MODE_FW);
 645                 recv_ctx->sds_rings[0].crb_intr_mask =
 646                                 sw_int_mask[adapter->portnum];
 647
 648                 err = netxen_init_old_ctx(adapter);
 649                 if (err) {
 650                         netxen_free_hw_resources(adapter);
 651                         return err;
 652                 }
 653
 654         }
 655
 656         return 0;
 657
 658 err_out_free:
 659         netxen_free_hw_resources(adapter);
 660         return err;
 661 }
 662
 663 void netxen_free_hw_resources(struct netxen_adapter *adapter)
 664 {
 665         struct netxen_recv_context *recv_ctx;
 666         struct nx_host_rds_ring *rds_ring;
 667         struct nx_host_sds_ring *sds_ring;
 668         int ring;
 669
 670         if (adapter->fw_major >= 4) {
 671                 nx_fw_cmd_destroy_tx_ctx(adapter);
 672                 nx_fw_cmd_destroy_rx_ctx(adapter);
 673         }
 674
 675         if (adapter->ctx_desc != NULL) {
 676                 pci_free_consistent(adapter->pdev,
 677                                 sizeof(struct netxen_ring_ctx) +
 678                                 sizeof(uint32_t),
 679                                 adapter->ctx_desc,
 680                                 adapter->ctx_desc_phys_addr);
 681                 adapter->ctx_desc = NULL;
 682         }
 683
 684         if (adapter->ahw.cmd_desc_head != NULL) {
 685                 pci_free_consistent(adapter->pdev,
 686                                 sizeof(struct cmd_desc_type0) *
 687                                 adapter->num_txd,
 688                                 adapter->ahw.cmd_desc_head,
 689                                 adapter->ahw.cmd_desc_phys_addr);
 690                 adapter->ahw.cmd_desc_head = NULL;
 691         }
 692
 693         recv_ctx = &adapter->recv_ctx;
 694         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
 695                 rds_ring = &recv_ctx->rds_rings[ring];
 696
 697                 if (rds_ring->desc_head != NULL) {
 698                         pci_free_consistent(adapter->pdev,
 699                                         RCV_DESC_RINGSIZE(rds_ring),
 700                                         rds_ring->desc_head,
 701                                         rds_ring->phys_addr);
 702                         rds_ring->desc_head = NULL;
 703                 }
 704         }
 705
 706         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 707                 sds_ring = &recv_ctx->sds_rings[ring];
 708
 709                 if (sds_ring->desc_head != NULL) {
 710                         pci_free_consistent(adapter->pdev,
 711                                 STATUS_DESC_RINGSIZE(sds_ring),
 712                                 sds_ring->desc_head,
 713                                 sds_ring->phys_addr);
 714                         sds_ring->desc_head = NULL;
 715                 }
 716         }
 717 }
 718