drivers/net/ethernet/qlogic/netxen/netxen_nic_ctx.c

   1 /*
   2  * Copyright (C) 2003 - 2009 NetXen, Inc.
   3  * Copyright (C) 2009 - QLogic Corporation.
   4  * All rights reserved.
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * as published by the Free Software Foundation; either version 2
   9  * of the License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  18  *
  19  * The full GNU General Public License is included in this distribution
  20  * in the file called "COPYING".
  21  *
  22  */
  23
  24 #include "netxen_nic_hw.h"
  25 #include "netxen_nic.h"
  26
  27 #define NXHAL_VERSION   1
  28
  29 static u32
  30 netxen_poll_rsp(struct netxen_adapter *adapter)
  31 {
  32         u32 rsp = NX_CDRP_RSP_OK;
  33         int     timeout = 0;
  34
  35         do {
  36                 /* give atleast 1ms for firmware to respond */
  37                 msleep(1);
  38
  39                 if (++timeout > NX_OS_CRB_RETRY_COUNT)
  40                         return NX_CDRP_RSP_TIMEOUT;
  41
  42                 rsp = NXRD32(adapter, NX_CDRP_CRB_OFFSET);
  43         } while (!NX_CDRP_IS_RSP(rsp));
  44
  45         return rsp;
  46 }
  47
  48 static u32
  49 netxen_issue_cmd(struct netxen_adapter *adapter, struct netxen_cmd_args *cmd)
  50 {
  51         u32 rsp;
  52         u32 signature = 0;
  53         u32 rcode = NX_RCODE_SUCCESS;
  54
  55         signature = NX_CDRP_SIGNATURE_MAKE(adapter->ahw.pci_func,
  56                                                 NXHAL_VERSION);
  57         /* Acquire semaphore before accessing CRB */
  58         if (netxen_api_lock(adapter))
  59                 return NX_RCODE_TIMEOUT;
  60
  61         NXWR32(adapter, NX_SIGN_CRB_OFFSET, signature);
  62
  63         NXWR32(adapter, NX_ARG1_CRB_OFFSET, cmd->req.arg1);
  64
  65         NXWR32(adapter, NX_ARG2_CRB_OFFSET, cmd->req.arg2);
  66
  67         NXWR32(adapter, NX_ARG3_CRB_OFFSET, cmd->req.arg3);
  68
  69         NXWR32(adapter, NX_CDRP_CRB_OFFSET, NX_CDRP_FORM_CMD(cmd->req.cmd));
  70
  71         rsp = netxen_poll_rsp(adapter);
  72
  73         if (rsp == NX_CDRP_RSP_TIMEOUT) {
  74                 printk(KERN_ERR "%s: card response timeout.\n",
  75                                 netxen_nic_driver_name);
  76
  77                 rcode = NX_RCODE_TIMEOUT;
  78         } else if (rsp == NX_CDRP_RSP_FAIL) {
  79                 rcode = NXRD32(adapter, NX_ARG1_CRB_OFFSET);
  80
  81                 printk(KERN_ERR "%s: failed card response code:0x%x\n",
  82                                 netxen_nic_driver_name, rcode);
  83         } else if (rsp == NX_CDRP_RSP_OK) {
  84                 cmd->rsp.cmd = NX_RCODE_SUCCESS;
  85                 if (cmd->rsp.arg2)
  86                         cmd->rsp.arg2 = NXRD32(adapter, NX_ARG2_CRB_OFFSET);
  87                 if (cmd->rsp.arg3)
  88                         cmd->rsp.arg3 = NXRD32(adapter, NX_ARG3_CRB_OFFSET);
  89         }
  90
  91         if (cmd->rsp.arg1)
  92                 cmd->rsp.arg1 = NXRD32(adapter, NX_ARG1_CRB_OFFSET);
  93         /* Release semaphore */
  94         netxen_api_unlock(adapter);
  95
  96         return rcode;
  97 }
  98
  99 static int
 100 netxen_get_minidump_template_size(struct netxen_adapter *adapter)
 101 {
 102         struct netxen_cmd_args cmd;
 103         memset(&cmd, 0, sizeof(cmd));
 104         cmd.req.cmd = NX_CDRP_CMD_TEMP_SIZE;
 105         memset(&cmd.rsp, 1, sizeof(struct _cdrp_cmd));
 106         netxen_issue_cmd(adapter, &cmd);
 107         if (cmd.rsp.cmd != NX_RCODE_SUCCESS) {
 108                 dev_info(&adapter->pdev->dev,
 109                         "Can't get template size %d\n", cmd.rsp.cmd);
 110                 return -EIO;
 111         }
 112         adapter->mdump.md_template_size = cmd.rsp.arg2;
 113         adapter->mdump.md_template_ver = cmd.rsp.arg3;
 114         return 0;
 115 }
 116
 117 static int
 118 netxen_get_minidump_template(struct netxen_adapter *adapter)
 119 {
 120         dma_addr_t md_template_addr;
 121         void *addr;
 122         u32 size;
 123         struct netxen_cmd_args cmd;
 124         size = adapter->mdump.md_template_size;
 125
 126         if (size == 0) {
 127                 dev_err(&adapter->pdev->dev, "Can not capture Minidump "
 128                         "template. Invalid template size.\n");
 129                 return NX_RCODE_INVALID_ARGS;
 130         }
 131
 132         addr = pci_zalloc_consistent(adapter->pdev, size, &md_template_addr);
 133         if (!addr) {
 134                 dev_err(&adapter->pdev->dev, "Unable to allocate dmable memory for template.\n");
 135                 return -ENOMEM;
 136         }
 137
 138         memset(&cmd, 0, sizeof(cmd));
 139         memset(&cmd.rsp, 1, sizeof(struct _cdrp_cmd));
 140         cmd.req.cmd = NX_CDRP_CMD_GET_TEMP_HDR;
 141         cmd.req.arg1 = LSD(md_template_addr);
 142         cmd.req.arg2 = MSD(md_template_addr);
 143         cmd.req.arg3 |= size;
 144         netxen_issue_cmd(adapter, &cmd);
 145
 146         if ((cmd.rsp.cmd == NX_RCODE_SUCCESS) && (size == cmd.rsp.arg2)) {
 147                 memcpy(adapter->mdump.md_template, addr, size);
 148         } else {
 149                 dev_err(&adapter->pdev->dev, "Failed to get minidump template, "
 150                         "err_code : %d, requested_size : %d, actual_size : %d\n ",
 151                         cmd.rsp.cmd, size, cmd.rsp.arg2);
 152         }
 153         pci_free_consistent(adapter->pdev, size, addr, md_template_addr);
 154         return 0;
 155 }
 156
 157 static u32
 158 netxen_check_template_checksum(struct netxen_adapter *adapter)
 159 {
 160         u64 sum =  0 ;
 161         u32 *buff = adapter->mdump.md_template;
 162         int count =  adapter->mdump.md_template_size/sizeof(uint32_t) ;
 163
 164         while (count-- > 0)
 165                 sum += *buff++ ;
 166         while (sum >> 32)
 167                 sum = (sum & 0xFFFFFFFF) +  (sum >> 32) ;
 168
 169         return ~sum;
 170 }
 171
 172 int
 173 netxen_setup_minidump(struct netxen_adapter *adapter)
 174 {
 175         int err = 0, i;
 176         u32 *template, *tmp_buf;
 177         struct netxen_minidump_template_hdr *hdr;
 178         err = netxen_get_minidump_template_size(adapter);
 179         if (err) {
 180                 adapter->mdump.fw_supports_md = 0;
 181                 if ((err == NX_RCODE_CMD_INVALID) ||
 182                         (err == NX_RCODE_CMD_NOT_IMPL)) {
 183                         dev_info(&adapter->pdev->dev,
 184                                 "Flashed firmware version does not support minidump, "
 185                                 "minimum version required is [ %u.%u.%u ].\n ",
 186                                 NX_MD_SUPPORT_MAJOR, NX_MD_SUPPORT_MINOR,
 187                                 NX_MD_SUPPORT_SUBVERSION);
 188                 }
 189                 return err;
 190         }
 191
 192         if (!adapter->mdump.md_template_size) {
 193                 dev_err(&adapter->pdev->dev, "Error : Invalid template size "
 194                 ",should be non-zero.\n");
 195                 return -EIO;
 196         }
 197         adapter->mdump.md_template =
 198                 kmalloc(adapter->mdump.md_template_size, GFP_KERNEL);
 199
 200         if (!adapter->mdump.md_template)
 201                 return -ENOMEM;
 202
 203         err = netxen_get_minidump_template(adapter);
 204         if (err) {
 205                 if (err == NX_RCODE_CMD_NOT_IMPL)
 206                         adapter->mdump.fw_supports_md = 0;
 207                 goto free_template;
 208         }
 209
 210         if (netxen_check_template_checksum(adapter)) {
 211                 dev_err(&adapter->pdev->dev, "Minidump template checksum Error\n");
 212                 err = -EIO;
 213                 goto free_template;
 214         }
 215
 216         adapter->mdump.md_capture_mask = NX_DUMP_MASK_DEF;
 217         tmp_buf = (u32 *) adapter->mdump.md_template;
 218         template = (u32 *) adapter->mdump.md_template;
 219         for (i = 0; i < adapter->mdump.md_template_size/sizeof(u32); i++)
 220                 *template++ = __le32_to_cpu(*tmp_buf++);
 221         hdr = (struct netxen_minidump_template_hdr *)
 222                                 adapter->mdump.md_template;
 223         adapter->mdump.md_capture_buff = NULL;
 224         adapter->mdump.fw_supports_md = 1;
 225         adapter->mdump.md_enabled = 0;
 226
 227         return err;
 228
 229 free_template:
 230         kfree(adapter->mdump.md_template);
 231         adapter->mdump.md_template = NULL;
 232         return err;
 233 }
 234
 235
 236 int
 237 nx_fw_cmd_set_mtu(struct netxen_adapter *adapter, int mtu)
 238 {
 239         u32 rcode = NX_RCODE_SUCCESS;
 240         struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
 241         struct netxen_cmd_args cmd;
 242
 243         memset(&cmd, 0, sizeof(cmd));
 244         cmd.req.cmd = NX_CDRP_CMD_SET_MTU;
 245         cmd.req.arg1 = recv_ctx->context_id;
 246         cmd.req.arg2 = mtu;
 247         cmd.req.arg3 = 0;
 248
 249         if (recv_ctx->state == NX_HOST_CTX_STATE_ACTIVE)
 250                 rcode = netxen_issue_cmd(adapter, &cmd);
 251
 252         if (rcode != NX_RCODE_SUCCESS)
 253                 return -EIO;
 254
 255         return 0;
 256 }
 257
 258 int
 259 nx_fw_cmd_set_gbe_port(struct netxen_adapter *adapter,
 260                         u32 speed, u32 duplex, u32 autoneg)
 261 {
 262         struct netxen_cmd_args cmd;
 263
 264         memset(&cmd, 0, sizeof(cmd));
 265         cmd.req.cmd = NX_CDRP_CMD_CONFIG_GBE_PORT;
 266         cmd.req.arg1 = speed;
 267         cmd.req.arg2 = duplex;
 268         cmd.req.arg3 = autoneg;
 269         return netxen_issue_cmd(adapter, &cmd);
 270 }
 271
 272 static int
 273 nx_fw_cmd_create_rx_ctx(struct netxen_adapter *adapter)
 274 {
 275         void *addr;
 276         nx_hostrq_rx_ctx_t *prq;
 277         nx_cardrsp_rx_ctx_t *prsp;
 278         nx_hostrq_rds_ring_t *prq_rds;
 279         nx_hostrq_sds_ring_t *prq_sds;
 280         nx_cardrsp_rds_ring_t *prsp_rds;
 281         nx_cardrsp_sds_ring_t *prsp_sds;
 282         struct nx_host_rds_ring *rds_ring;
 283         struct nx_host_sds_ring *sds_ring;
 284         struct netxen_cmd_args cmd;
 285
 286         dma_addr_t hostrq_phys_addr, cardrsp_phys_addr;
 287         u64 phys_addr;
 288
 289         int i, nrds_rings, nsds_rings;
 290         size_t rq_size, rsp_size;
 291         u32 cap, reg, val;
 292
 293         int err;
 294
 295         struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
 296
 297         nrds_rings = adapter->max_rds_rings;
 298         nsds_rings = adapter->max_sds_rings;
 299
 300         rq_size =
 301                 SIZEOF_HOSTRQ_RX(nx_hostrq_rx_ctx_t, nrds_rings, nsds_rings);
 302         rsp_size =
 303                 SIZEOF_CARDRSP_RX(nx_cardrsp_rx_ctx_t, nrds_rings, nsds_rings);
 304
 305         addr = pci_alloc_consistent(adapter->pdev,
 306                                 rq_size, &hostrq_phys_addr);
 307         if (addr == NULL)
 308                 return -ENOMEM;
 309         prq = addr;
 310
 311         addr = pci_alloc_consistent(adapter->pdev,
 312                         rsp_size, &cardrsp_phys_addr);
 313         if (addr == NULL) {
 314                 err = -ENOMEM;
 315                 goto out_free_rq;
 316         }
 317         prsp = addr;
 318
 319         prq->host_rsp_dma_addr = cpu_to_le64(cardrsp_phys_addr);
 320
 321         cap = (NX_CAP0_LEGACY_CONTEXT | NX_CAP0_LEGACY_MN);
 322         cap |= (NX_CAP0_JUMBO_CONTIGUOUS | NX_CAP0_LRO_CONTIGUOUS);
 323
 324         if (adapter->flags & NETXEN_FW_MSS_CAP)
 325                 cap |= NX_CAP0_HW_LRO_MSS;
 326
 327         prq->capabilities[0] = cpu_to_le32(cap);
 328         prq->host_int_crb_mode =
 329                 cpu_to_le32(NX_HOST_INT_CRB_MODE_SHARED);
 330         prq->host_rds_crb_mode =
 331                 cpu_to_le32(NX_HOST_RDS_CRB_MODE_UNIQUE);
 332
 333         prq->num_rds_rings = cpu_to_le16(nrds_rings);
 334         prq->num_sds_rings = cpu_to_le16(nsds_rings);
 335         prq->rds_ring_offset = cpu_to_le32(0);
 336
 337         val = le32_to_cpu(prq->rds_ring_offset) +
 338                 (sizeof(nx_hostrq_rds_ring_t) * nrds_rings);
 339         prq->sds_ring_offset = cpu_to_le32(val);
 340
 341         prq_rds = (nx_hostrq_rds_ring_t *)(prq->data +
 342                         le32_to_cpu(prq->rds_ring_offset));
 343
 344         for (i = 0; i < nrds_rings; i++) {
 345
 346                 rds_ring = &recv_ctx->rds_rings[i];
 347
 348                 prq_rds[i].host_phys_addr = cpu_to_le64(rds_ring->phys_addr);
 349                 prq_rds[i].ring_size = cpu_to_le32(rds_ring->num_desc);
 350                 prq_rds[i].ring_kind = cpu_to_le32(i);
 351                 prq_rds[i].buff_size = cpu_to_le64(rds_ring->dma_size);
 352         }
 353
 354         prq_sds = (nx_hostrq_sds_ring_t *)(prq->data +
 355                         le32_to_cpu(prq->sds_ring_offset));
 356
 357         for (i = 0; i < nsds_rings; i++) {
 358
 359                 sds_ring = &recv_ctx->sds_rings[i];
 360
 361                 prq_sds[i].host_phys_addr = cpu_to_le64(sds_ring->phys_addr);
 362                 prq_sds[i].ring_size = cpu_to_le32(sds_ring->num_desc);
 363                 prq_sds[i].msi_index = cpu_to_le16(i);
 364         }
 365
 366         phys_addr = hostrq_phys_addr;
 367         memset(&cmd, 0, sizeof(cmd));
 368         cmd.req.arg1 = (u32)(phys_addr >> 32);
 369         cmd.req.arg2 = (u32)(phys_addr & 0xffffffff);
 370         cmd.req.arg3 = rq_size;
 371         cmd.req.cmd = NX_CDRP_CMD_CREATE_RX_CTX;
 372         err = netxen_issue_cmd(adapter, &cmd);
 373         if (err) {
 374                 printk(KERN_WARNING
 375                         "Failed to create rx ctx in firmware%d\n", err);
 376                 goto out_free_rsp;
 377         }
 378
 379
 380         prsp_rds = ((nx_cardrsp_rds_ring_t *)
 381                          &prsp->data[le32_to_cpu(prsp->rds_ring_offset)]);
 382
 383         for (i = 0; i < le16_to_cpu(prsp->num_rds_rings); i++) {
 384                 rds_ring = &recv_ctx->rds_rings[i];
 385
 386                 reg = le32_to_cpu(prsp_rds[i].host_producer_crb);
 387                 rds_ring->crb_rcv_producer = netxen_get_ioaddr(adapter,
 388                                 NETXEN_NIC_REG(reg - 0x200));
 389         }
 390
 391         prsp_sds = ((nx_cardrsp_sds_ring_t *)
 392                         &prsp->data[le32_to_cpu(prsp->sds_ring_offset)]);
 393
 394         for (i = 0; i < le16_to_cpu(prsp->num_sds_rings); i++) {
 395                 sds_ring = &recv_ctx->sds_rings[i];
 396
 397                 reg = le32_to_cpu(prsp_sds[i].host_consumer_crb);
 398                 sds_ring->crb_sts_consumer = netxen_get_ioaddr(adapter,
 399                                 NETXEN_NIC_REG(reg - 0x200));
 400
 401                 reg = le32_to_cpu(prsp_sds[i].interrupt_crb);
 402                 sds_ring->crb_intr_mask = netxen_get_ioaddr(adapter,
 403                                 NETXEN_NIC_REG(reg - 0x200));
 404         }
 405
 406         recv_ctx->state = le32_to_cpu(prsp->host_ctx_state);
 407         recv_ctx->context_id = le16_to_cpu(prsp->context_id);
 408         recv_ctx->virt_port = prsp->virt_port;
 409
 410 out_free_rsp:
 411         pci_free_consistent(adapter->pdev, rsp_size, prsp, cardrsp_phys_addr);
 412 out_free_rq:
 413         pci_free_consistent(adapter->pdev, rq_size, prq, hostrq_phys_addr);
 414         return err;
 415 }
 416
 417 static void
 418 nx_fw_cmd_destroy_rx_ctx(struct netxen_adapter *adapter)
 419 {
 420         struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
 421         struct netxen_cmd_args cmd;
 422
 423         memset(&cmd, 0, sizeof(cmd));
 424         cmd.req.arg1 = recv_ctx->context_id;
 425         cmd.req.arg2 = NX_DESTROY_CTX_RESET;
 426         cmd.req.arg3 = 0;
 427         cmd.req.cmd = NX_CDRP_CMD_DESTROY_RX_CTX;
 428
 429         if (netxen_issue_cmd(adapter, &cmd)) {
 430                 printk(KERN_WARNING
 431                         "%s: Failed to destroy rx ctx in firmware\n",
 432                         netxen_nic_driver_name);
 433         }
 434 }
 435
 436 static int
 437 nx_fw_cmd_create_tx_ctx(struct netxen_adapter *adapter)
 438 {
 439         nx_hostrq_tx_ctx_t      *prq;
 440         nx_hostrq_cds_ring_t    *prq_cds;
 441         nx_cardrsp_tx_ctx_t     *prsp;
 442         void    *rq_addr, *rsp_addr;
 443         size_t  rq_size, rsp_size;
 444         u32     temp;
 445         int     err = 0;
 446         u64     offset, phys_addr;
 447         dma_addr_t      rq_phys_addr, rsp_phys_addr;
 448         struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
 449         struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
 450         struct netxen_cmd_args cmd;
 451
 452         rq_size = SIZEOF_HOSTRQ_TX(nx_hostrq_tx_ctx_t);
 453         rq_addr = pci_alloc_consistent(adapter->pdev,
 454                 rq_size, &rq_phys_addr);
 455         if (!rq_addr)
 456                 return -ENOMEM;
 457
 458         rsp_size = SIZEOF_CARDRSP_TX(nx_cardrsp_tx_ctx_t);
 459         rsp_addr = pci_alloc_consistent(adapter->pdev,
 460                 rsp_size, &rsp_phys_addr);
 461         if (!rsp_addr) {
 462                 err = -ENOMEM;
 463                 goto out_free_rq;
 464         }
 465
 466         memset(rq_addr, 0, rq_size);
 467         prq = rq_addr;
 468
 469         memset(rsp_addr, 0, rsp_size);
 470         prsp = rsp_addr;
 471
 472         prq->host_rsp_dma_addr = cpu_to_le64(rsp_phys_addr);
 473
 474         temp = (NX_CAP0_LEGACY_CONTEXT | NX_CAP0_LEGACY_MN | NX_CAP0_LSO);
 475         prq->capabilities[0] = cpu_to_le32(temp);
 476
 477         prq->host_int_crb_mode =
 478                 cpu_to_le32(NX_HOST_INT_CRB_MODE_SHARED);
 479
 480         prq->interrupt_ctl = 0;
 481         prq->msi_index = 0;
 482
 483         prq->dummy_dma_addr = cpu_to_le64(adapter->dummy_dma.phys_addr);
 484
 485         offset = recv_ctx->phys_addr + sizeof(struct netxen_ring_ctx);
 486         prq->cmd_cons_dma_addr = cpu_to_le64(offset);
 487
 488         prq_cds = &prq->cds_ring;
 489
 490         prq_cds->host_phys_addr = cpu_to_le64(tx_ring->phys_addr);
 491         prq_cds->ring_size = cpu_to_le32(tx_ring->num_desc);
 492
 493         phys_addr = rq_phys_addr;
 494         memset(&cmd, 0, sizeof(cmd));
 495         cmd.req.arg1 = (u32)(phys_addr >> 32);
 496         cmd.req.arg2 = ((u32)phys_addr & 0xffffffff);
 497         cmd.req.arg3 = rq_size;
 498         cmd.req.cmd = NX_CDRP_CMD_CREATE_TX_CTX;
 499         err = netxen_issue_cmd(adapter, &cmd);
 500
 501         if (err == NX_RCODE_SUCCESS) {
 502                 temp = le32_to_cpu(prsp->cds_ring.host_producer_crb);
 503                 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
 504                                 NETXEN_NIC_REG(temp - 0x200));
 505 #if 0
 506                 adapter->tx_state =
 507                         le32_to_cpu(prsp->host_ctx_state);
 508 #endif
 509                 adapter->tx_context_id =
 510                         le16_to_cpu(prsp->context_id);
 511         } else {
 512                 printk(KERN_WARNING
 513                         "Failed to create tx ctx in firmware%d\n", err);
 514                 err = -EIO;
 515         }
 516
 517         pci_free_consistent(adapter->pdev, rsp_size, rsp_addr, rsp_phys_addr);
 518
 519 out_free_rq:
 520         pci_free_consistent(adapter->pdev, rq_size, rq_addr, rq_phys_addr);
 521
 522         return err;
 523 }
 524
 525 static void
 526 nx_fw_cmd_destroy_tx_ctx(struct netxen_adapter *adapter)
 527 {
 528         struct netxen_cmd_args cmd;
 529
 530         memset(&cmd, 0, sizeof(cmd));
 531         cmd.req.arg1 = adapter->tx_context_id;
 532         cmd.req.arg2 = NX_DESTROY_CTX_RESET;
 533         cmd.req.arg3 = 0;
 534         cmd.req.cmd = NX_CDRP_CMD_DESTROY_TX_CTX;
 535         if (netxen_issue_cmd(adapter, &cmd)) {
 536                 printk(KERN_WARNING
 537                         "%s: Failed to destroy tx ctx in firmware\n",
 538                         netxen_nic_driver_name);
 539         }
 540 }
 541
 542 int
 543 nx_fw_cmd_query_phy(struct netxen_adapter *adapter, u32 reg, u32 *val)
 544 {
 545         u32 rcode;
 546         struct netxen_cmd_args cmd;
 547
 548         memset(&cmd, 0, sizeof(cmd));
 549         cmd.req.arg1 = reg;
 550         cmd.req.arg2 = 0;
 551         cmd.req.arg3 = 0;
 552         cmd.req.cmd = NX_CDRP_CMD_READ_PHY;
 553         cmd.rsp.arg1 = 1;
 554         rcode = netxen_issue_cmd(adapter, &cmd);
 555         if (rcode != NX_RCODE_SUCCESS)
 556                 return -EIO;
 557
 558         if (val == NULL)
 559                 return -EIO;
 560
 561         *val = cmd.rsp.arg1;
 562         return 0;
 563 }
 564
 565 int
 566 nx_fw_cmd_set_phy(struct netxen_adapter *adapter, u32 reg, u32 val)
 567 {
 568         u32 rcode;
 569         struct netxen_cmd_args cmd;
 570
 571         memset(&cmd, 0, sizeof(cmd));
 572         cmd.req.arg1 = reg;
 573         cmd.req.arg2 = val;
 574         cmd.req.arg3 = 0;
 575         cmd.req.cmd = NX_CDRP_CMD_WRITE_PHY;
 576         rcode = netxen_issue_cmd(adapter, &cmd);
 577         if (rcode != NX_RCODE_SUCCESS)
 578                 return -EIO;
 579
 580         return 0;
 581 }
 582
 583 static u64 ctx_addr_sig_regs[][3] = {
 584         {NETXEN_NIC_REG(0x188), NETXEN_NIC_REG(0x18c), NETXEN_NIC_REG(0x1c0)},
 585         {NETXEN_NIC_REG(0x190), NETXEN_NIC_REG(0x194), NETXEN_NIC_REG(0x1c4)},
 586         {NETXEN_NIC_REG(0x198), NETXEN_NIC_REG(0x19c), NETXEN_NIC_REG(0x1c8)},
 587         {NETXEN_NIC_REG(0x1a0), NETXEN_NIC_REG(0x1a4), NETXEN_NIC_REG(0x1cc)}
 588 };
 589
 590 #define CRB_CTX_ADDR_REG_LO(FUNC_ID)    (ctx_addr_sig_regs[FUNC_ID][0])
 591 #define CRB_CTX_ADDR_REG_HI(FUNC_ID)    (ctx_addr_sig_regs[FUNC_ID][2])
 592 #define CRB_CTX_SIGNATURE_REG(FUNC_ID)  (ctx_addr_sig_regs[FUNC_ID][1])
 593
 594 #define lower32(x)      ((u32)((x) & 0xffffffff))
 595 #define upper32(x)      ((u32)(((u64)(x) >> 32) & 0xffffffff))
 596
 597 static struct netxen_recv_crb recv_crb_registers[] = {
 598         /* Instance 0 */
 599         {
 600                 /* crb_rcv_producer: */
 601                 {
 602                         NETXEN_NIC_REG(0x100),
 603                         /* Jumbo frames */
 604                         NETXEN_NIC_REG(0x110),
 605                         /* LRO */
 606                         NETXEN_NIC_REG(0x120)
 607                 },
 608                 /* crb_sts_consumer: */
 609                 {
 610                         NETXEN_NIC_REG(0x138),
 611                         NETXEN_NIC_REG_2(0x000),
 612                         NETXEN_NIC_REG_2(0x004),
 613                         NETXEN_NIC_REG_2(0x008),
 614                 },
 615                 /* sw_int_mask */
 616                 {
 617                         CRB_SW_INT_MASK_0,
 618                         NETXEN_NIC_REG_2(0x044),
 619                         NETXEN_NIC_REG_2(0x048),
 620                         NETXEN_NIC_REG_2(0x04c),
 621                 },
 622         },
 623         /* Instance 1 */
 624         {
 625                 /* crb_rcv_producer: */
 626                 {
 627                         NETXEN_NIC_REG(0x144),
 628                         /* Jumbo frames */
 629                         NETXEN_NIC_REG(0x154),
 630                         /* LRO */
 631                         NETXEN_NIC_REG(0x164)
 632                 },
 633                 /* crb_sts_consumer: */
 634                 {
 635                         NETXEN_NIC_REG(0x17c),
 636                         NETXEN_NIC_REG_2(0x020),
 637                         NETXEN_NIC_REG_2(0x024),
 638                         NETXEN_NIC_REG_2(0x028),
 639                 },
 640                 /* sw_int_mask */
 641                 {
 642                         CRB_SW_INT_MASK_1,
 643                         NETXEN_NIC_REG_2(0x064),
 644                         NETXEN_NIC_REG_2(0x068),
 645                         NETXEN_NIC_REG_2(0x06c),
 646                 },
 647         },
 648         /* Instance 2 */
 649         {
 650                 /* crb_rcv_producer: */
 651                 {
 652                         NETXEN_NIC_REG(0x1d8),
 653                         /* Jumbo frames */
 654                         NETXEN_NIC_REG(0x1f8),
 655                         /* LRO */
 656                         NETXEN_NIC_REG(0x208)
 657                 },
 658                 /* crb_sts_consumer: */
 659                 {
 660                         NETXEN_NIC_REG(0x220),
 661                         NETXEN_NIC_REG_2(0x03c),
 662                         NETXEN_NIC_REG_2(0x03c),
 663                         NETXEN_NIC_REG_2(0x03c),
 664                 },
 665                 /* sw_int_mask */
 666                 {
 667                         CRB_SW_INT_MASK_2,
 668                         NETXEN_NIC_REG_2(0x03c),
 669                         NETXEN_NIC_REG_2(0x03c),
 670                         NETXEN_NIC_REG_2(0x03c),
 671                 },
 672         },
 673         /* Instance 3 */
 674         {
 675                 /* crb_rcv_producer: */
 676                 {
 677                         NETXEN_NIC_REG(0x22c),
 678                         /* Jumbo frames */
 679                         NETXEN_NIC_REG(0x23c),
 680                         /* LRO */
 681                         NETXEN_NIC_REG(0x24c)
 682                 },
 683                 /* crb_sts_consumer: */
 684                 {
 685                         NETXEN_NIC_REG(0x264),
 686                         NETXEN_NIC_REG_2(0x03c),
 687                         NETXEN_NIC_REG_2(0x03c),
 688                         NETXEN_NIC_REG_2(0x03c),
 689                 },
 690                 /* sw_int_mask */
 691                 {
 692                         CRB_SW_INT_MASK_3,
 693                         NETXEN_NIC_REG_2(0x03c),
 694                         NETXEN_NIC_REG_2(0x03c),
 695                         NETXEN_NIC_REG_2(0x03c),
 696                 },
 697         },
 698 };
 699
 700 static int
 701 netxen_init_old_ctx(struct netxen_adapter *adapter)
 702 {
 703         struct netxen_recv_context *recv_ctx;
 704         struct nx_host_rds_ring *rds_ring;
 705         struct nx_host_sds_ring *sds_ring;
 706         struct nx_host_tx_ring *tx_ring;
 707         int ring;
 708         int port = adapter->portnum;
 709         struct netxen_ring_ctx *hwctx;
 710         u32 signature;
 711
 712         tx_ring = adapter->tx_ring;
 713         recv_ctx = &adapter->recv_ctx;
 714         hwctx = recv_ctx->hwctx;
 715
 716         hwctx->cmd_ring_addr = cpu_to_le64(tx_ring->phys_addr);
 717         hwctx->cmd_ring_size = cpu_to_le32(tx_ring->num_desc);
 718
 719
 720         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
 721                 rds_ring = &recv_ctx->rds_rings[ring];
 722
 723                 hwctx->rcv_rings[ring].addr =
 724                         cpu_to_le64(rds_ring->phys_addr);
 725                 hwctx->rcv_rings[ring].size =
 726                         cpu_to_le32(rds_ring->num_desc);
 727         }
 728
 729         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 730                 sds_ring = &recv_ctx->sds_rings[ring];
 731
 732                 if (ring == 0) {
 733                         hwctx->sts_ring_addr = cpu_to_le64(sds_ring->phys_addr);
 734                         hwctx->sts_ring_size = cpu_to_le32(sds_ring->num_desc);
 735                 }
 736                 hwctx->sts_rings[ring].addr = cpu_to_le64(sds_ring->phys_addr);
 737                 hwctx->sts_rings[ring].size = cpu_to_le32(sds_ring->num_desc);
 738                 hwctx->sts_rings[ring].msi_index = cpu_to_le16(ring);
 739         }
 740         hwctx->sts_ring_count = cpu_to_le32(adapter->max_sds_rings);
 741
 742         signature = (adapter->max_sds_rings > 1) ?
 743                 NETXEN_CTX_SIGNATURE_V2 : NETXEN_CTX_SIGNATURE;
 744
 745         NXWR32(adapter, CRB_CTX_ADDR_REG_LO(port),
 746                         lower32(recv_ctx->phys_addr));
 747         NXWR32(adapter, CRB_CTX_ADDR_REG_HI(port),
 748                         upper32(recv_ctx->phys_addr));
 749         NXWR32(adapter, CRB_CTX_SIGNATURE_REG(port),
 750                         signature | port);
 751         return 0;
 752 }
 753
 754 int netxen_alloc_hw_resources(struct netxen_adapter *adapter)
 755 {
 756         void *addr;
 757         int err = 0;
 758         int ring;
 759         struct netxen_recv_context *recv_ctx;
 760         struct nx_host_rds_ring *rds_ring;
 761         struct nx_host_sds_ring *sds_ring;
 762         struct nx_host_tx_ring *tx_ring;
 763
 764         struct pci_dev *pdev = adapter->pdev;
 765         struct net_device *netdev = adapter->netdev;
 766         int port = adapter->portnum;
 767
 768         recv_ctx = &adapter->recv_ctx;
 769         tx_ring = adapter->tx_ring;
 770
 771         addr = pci_alloc_consistent(pdev,
 772                         sizeof(struct netxen_ring_ctx) + sizeof(uint32_t),
 773                         &recv_ctx->phys_addr);
 774         if (addr == NULL) {
 775                 dev_err(&pdev->dev, "failed to allocate hw context\n");
 776                 return -ENOMEM;
 777         }
 778
 779         memset(addr, 0, sizeof(struct netxen_ring_ctx));
 780         recv_ctx->hwctx = addr;
 781         recv_ctx->hwctx->ctx_id = cpu_to_le32(port);
 782         recv_ctx->hwctx->cmd_consumer_offset =
 783                 cpu_to_le64(recv_ctx->phys_addr +
 784                         sizeof(struct netxen_ring_ctx));
 785         tx_ring->hw_consumer =
 786                 (__le32 *)(((char *)addr) + sizeof(struct netxen_ring_ctx));
 787
 788         /* cmd desc ring */
 789         addr = pci_alloc_consistent(pdev, TX_DESC_RINGSIZE(tx_ring),
 790                         &tx_ring->phys_addr);
 791
 792         if (addr == NULL) {
 793                 dev_err(&pdev->dev, "%s: failed to allocate tx desc ring\n",
 794                                 netdev->name);
 795                 err = -ENOMEM;
 796                 goto err_out_free;
 797         }
 798
 799         tx_ring->desc_head = addr;
 800
 801         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
 802                 rds_ring = &recv_ctx->rds_rings[ring];
 803                 addr = pci_alloc_consistent(adapter->pdev,
 804                                 RCV_DESC_RINGSIZE(rds_ring),
 805                                 &rds_ring->phys_addr);
 806                 if (addr == NULL) {
 807                         dev_err(&pdev->dev,
 808                                 "%s: failed to allocate rds ring [%d]\n",
 809                                 netdev->name, ring);
 810                         err = -ENOMEM;
 811                         goto err_out_free;
 812                 }
 813                 rds_ring->desc_head = addr;
 814
 815                 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
 816                         rds_ring->crb_rcv_producer =
 817                                 netxen_get_ioaddr(adapter,
 818                         recv_crb_registers[port].crb_rcv_producer[ring]);
 819         }
 820
 821         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 822                 sds_ring = &recv_ctx->sds_rings[ring];
 823
 824                 addr = pci_alloc_consistent(adapter->pdev,
 825                                 STATUS_DESC_RINGSIZE(sds_ring),
 826                                 &sds_ring->phys_addr);
 827                 if (addr == NULL) {
 828                         dev_err(&pdev->dev,
 829                                 "%s: failed to allocate sds ring [%d]\n",
 830                                 netdev->name, ring);
 831                         err = -ENOMEM;
 832                         goto err_out_free;
 833                 }
 834                 sds_ring->desc_head = addr;
 835
 836                 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
 837                         sds_ring->crb_sts_consumer =
 838                                 netxen_get_ioaddr(adapter,
 839                                 recv_crb_registers[port].crb_sts_consumer[ring]);
 840
 841                         sds_ring->crb_intr_mask =
 842                                 netxen_get_ioaddr(adapter,
 843                                 recv_crb_registers[port].sw_int_mask[ring]);
 844                 }
 845         }
 846
 847
 848         if (!NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
 849                 if (test_and_set_bit(__NX_FW_ATTACHED, &adapter->state))
 850                         goto done;
 851                 err = nx_fw_cmd_create_rx_ctx(adapter);
 852                 if (err)
 853                         goto err_out_free;
 854                 err = nx_fw_cmd_create_tx_ctx(adapter);
 855                 if (err)
 856                         goto err_out_free;
 857         } else {
 858                 err = netxen_init_old_ctx(adapter);
 859                 if (err)
 860                         goto err_out_free;
 861         }
 862
 863 done:
 864         return 0;
 865
 866 err_out_free:
 867         netxen_free_hw_resources(adapter);
 868         return err;
 869 }
 870
 871 void netxen_free_hw_resources(struct netxen_adapter *adapter)
 872 {
 873         struct netxen_recv_context *recv_ctx;
 874         struct nx_host_rds_ring *rds_ring;
 875         struct nx_host_sds_ring *sds_ring;
 876         struct nx_host_tx_ring *tx_ring;
 877         int ring;
 878
 879         int port = adapter->portnum;
 880
 881         if (!NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
 882                 if (!test_and_clear_bit(__NX_FW_ATTACHED, &adapter->state))
 883                         goto done;
 884
 885                 nx_fw_cmd_destroy_rx_ctx(adapter);
 886                 nx_fw_cmd_destroy_tx_ctx(adapter);
 887         } else {
 888                 netxen_api_lock(adapter);
 889                 NXWR32(adapter, CRB_CTX_SIGNATURE_REG(port),
 890                                 NETXEN_CTX_D3_RESET | port);
 891                 netxen_api_unlock(adapter);
 892         }
 893
 894         /* Allow dma queues to drain after context reset */
 895         msleep(20);
 896
 897 done:
 898         recv_ctx = &adapter->recv_ctx;
 899
 900         if (recv_ctx->hwctx != NULL) {
 901                 pci_free_consistent(adapter->pdev,
 902                                 sizeof(struct netxen_ring_ctx) +
 903                                 sizeof(uint32_t),
 904                                 recv_ctx->hwctx,
 905                                 recv_ctx->phys_addr);
 906                 recv_ctx->hwctx = NULL;
 907         }
 908
 909         tx_ring = adapter->tx_ring;
 910         if (tx_ring->desc_head != NULL) {
 911                 pci_free_consistent(adapter->pdev,
 912                                 TX_DESC_RINGSIZE(tx_ring),
 913                                 tx_ring->desc_head, tx_ring->phys_addr);
 914                 tx_ring->desc_head = NULL;
 915         }
 916
 917         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
 918                 rds_ring = &recv_ctx->rds_rings[ring];
 919
 920                 if (rds_ring->desc_head != NULL) {
 921                         pci_free_consistent(adapter->pdev,
 922                                         RCV_DESC_RINGSIZE(rds_ring),
 923                                         rds_ring->desc_head,
 924                                         rds_ring->phys_addr);
 925                         rds_ring->desc_head = NULL;
 926                 }
 927         }
 928
 929         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 930                 sds_ring = &recv_ctx->sds_rings[ring];
 931
 932                 if (sds_ring->desc_head != NULL) {
 933                         pci_free_consistent(adapter->pdev,
 934                                 STATUS_DESC_RINGSIZE(sds_ring),
 935                                 sds_ring->desc_head,
 936                                 sds_ring->phys_addr);
 937                         sds_ring->desc_head = NULL;
 938                 }
 939         }
 940 }
 941