drivers/infiniband/hw/mthca/mthca_main.c

   1 /*
   2  * Copyright (c) 2004, 2005 Topspin Communications.  All rights reserved.
   3  * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
   4  * Copyright (c) 2005 Mellanox Technologies. All rights reserved.
   5  *
   6  * This software is available to you under a choice of one of two
   7  * licenses.  You may choose to be licensed under the terms of the GNU
   8  * General Public License (GPL) Version 2, available from the file
   9  * COPYING in the main directory of this source tree, or the
  10  * OpenIB.org BSD license below:
  11  *
  12  *     Redistribution and use in source and binary forms, with or
  13  *     without modification, are permitted provided that the following
  14  *     conditions are met:
  15  *
  16  *      - Redistributions of source code must retain the above
  17  *        copyright notice, this list of conditions and the following
  18  *        disclaimer.
  19  *
  20  *      - Redistributions in binary form must reproduce the above
  21  *        copyright notice, this list of conditions and the following
  22  *        disclaimer in the documentation and/or other materials
  23  *        provided with the distribution.
  24  *
  25  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  26  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  27  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  28  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  29  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  30  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  31  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  32  * SOFTWARE.
  33  *
  34  * $Id: mthca_main.c 1396 2004-12-28 04:10:27Z roland $
  35  */
  36
  37 #include <linux/module.h>
  38 #include <linux/init.h>
  39 #include <linux/errno.h>
  40 #include <linux/pci.h>
  41 #include <linux/interrupt.h>
  42
  43 #include "mthca_dev.h"
  44 #include "mthca_config_reg.h"
  45 #include "mthca_cmd.h"
  46 #include "mthca_profile.h"
  47 #include "mthca_memfree.h"
  48
  49 MODULE_AUTHOR("Roland Dreier");
  50 MODULE_DESCRIPTION("Mellanox InfiniBand HCA low-level driver");
  51 MODULE_LICENSE("Dual BSD/GPL");
  52 MODULE_VERSION(DRV_VERSION);
  53
  54 #ifdef CONFIG_INFINIBAND_MTHCA_DEBUG
  55
  56 int mthca_debug_level = 0;
  57 module_param_named(debug_level, mthca_debug_level, int, 0644);
  58 MODULE_PARM_DESC(debug_level, "Enable debug tracing if > 0");
  59
  60 #endif /* CONFIG_INFINIBAND_MTHCA_DEBUG */
  61
  62 #ifdef CONFIG_PCI_MSI
  63
  64 static int msi_x = 0;
  65 module_param(msi_x, int, 0444);
  66 MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero");
  67
  68 static int msi = 0;
  69 module_param(msi, int, 0444);
  70 MODULE_PARM_DESC(msi, "attempt to use MSI if nonzero");
  71
  72 #else /* CONFIG_PCI_MSI */
  73
  74 #define msi_x (0)
  75 #define msi   (0)
  76
  77 #endif /* CONFIG_PCI_MSI */
  78
  79 static int tune_pci = 0;
  80 module_param(tune_pci, int, 0444);
  81 MODULE_PARM_DESC(tune_pci, "increase PCI burst from the default set by BIOS if nonzero");
  82
  83 struct mutex mthca_device_mutex;
  84
  85 static const char mthca_version[] __devinitdata =
  86         DRV_NAME ": Mellanox InfiniBand HCA driver v"
  87         DRV_VERSION " (" DRV_RELDATE ")\n";
  88
  89 static struct mthca_profile default_profile = {
  90         .num_qp            = 1 << 16,
  91         .rdb_per_qp        = 4,
  92         .num_cq            = 1 << 16,
  93         .num_mcg           = 1 << 13,
  94         .num_mpt           = 1 << 17,
  95         .num_mtt           = 1 << 20,
  96         .num_udav          = 1 << 15,   /* Tavor only */
  97         .fmr_reserved_mtts = 1 << 18,   /* Tavor only */
  98         .uarc_size         = 1 << 18,   /* Arbel only */
  99 };
 100
 101 static int mthca_tune_pci(struct mthca_dev *mdev)
 102 {
 103         int cap;
 104         u16 val;
 105
 106         if (!tune_pci)
 107                 return 0;
 108
 109         /* First try to max out Read Byte Count */
 110         cap = pci_find_capability(mdev->pdev, PCI_CAP_ID_PCIX);
 111         if (cap) {
 112                 if (pci_read_config_word(mdev->pdev, cap + PCI_X_CMD, &val)) {
 113                         mthca_err(mdev, "Couldn't read PCI-X command register, "
 114                                   "aborting.\n");
 115                         return -ENODEV;
 116                 }
 117                 val = (val & ~PCI_X_CMD_MAX_READ) | (3 << 2);
 118                 if (pci_write_config_word(mdev->pdev, cap + PCI_X_CMD, val)) {
 119                         mthca_err(mdev, "Couldn't write PCI-X command register, "
 120                                   "aborting.\n");
 121                         return -ENODEV;
 122                 }
 123         } else if (!(mdev->mthca_flags & MTHCA_FLAG_PCIE))
 124                 mthca_info(mdev, "No PCI-X capability, not setting RBC.\n");
 125
 126         cap = pci_find_capability(mdev->pdev, PCI_CAP_ID_EXP);
 127         if (cap) {
 128                 if (pci_read_config_word(mdev->pdev, cap + PCI_EXP_DEVCTL, &val)) {
 129                         mthca_err(mdev, "Couldn't read PCI Express device control "
 130                                   "register, aborting.\n");
 131                         return -ENODEV;
 132                 }
 133                 val = (val & ~PCI_EXP_DEVCTL_READRQ) | (5 << 12);
 134                 if (pci_write_config_word(mdev->pdev, cap + PCI_EXP_DEVCTL, val)) {
 135                         mthca_err(mdev, "Couldn't write PCI Express device control "
 136                                   "register, aborting.\n");
 137                         return -ENODEV;
 138                 }
 139         } else if (mdev->mthca_flags & MTHCA_FLAG_PCIE)
 140                 mthca_info(mdev, "No PCI Express capability, "
 141                            "not setting Max Read Request Size.\n");
 142
 143         return 0;
 144 }
 145
 146 static int mthca_dev_lim(struct mthca_dev *mdev, struct mthca_dev_lim *dev_lim)
 147 {
 148         int err;
 149         u8 status;
 150
 151         err = mthca_QUERY_DEV_LIM(mdev, dev_lim, &status);
 152         if (err) {
 153                 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
 154                 return err;
 155         }
 156         if (status) {
 157                 mthca_err(mdev, "QUERY_DEV_LIM returned status 0x%02x, "
 158                           "aborting.\n", status);
 159                 return -EINVAL;
 160         }
 161         if (dev_lim->min_page_sz > PAGE_SIZE) {
 162                 mthca_err(mdev, "HCA minimum page size of %d bigger than "
 163                           "kernel PAGE_SIZE of %ld, aborting.\n",
 164                           dev_lim->min_page_sz, PAGE_SIZE);
 165                 return -ENODEV;
 166         }
 167         if (dev_lim->num_ports > MTHCA_MAX_PORTS) {
 168                 mthca_err(mdev, "HCA has %d ports, but we only support %d, "
 169                           "aborting.\n",
 170                           dev_lim->num_ports, MTHCA_MAX_PORTS);
 171                 return -ENODEV;
 172         }
 173
 174         if (dev_lim->uar_size > pci_resource_len(mdev->pdev, 2)) {
 175                 mthca_err(mdev, "HCA reported UAR size of 0x%x bigger than "
 176                           "PCI resource 2 size of 0x%llx, aborting.\n",
 177                           dev_lim->uar_size,
 178                           (unsigned long long)pci_resource_len(mdev->pdev, 2));
 179                 return -ENODEV;
 180         }
 181
 182         mdev->limits.num_ports          = dev_lim->num_ports;
 183         mdev->limits.vl_cap             = dev_lim->max_vl;
 184         mdev->limits.mtu_cap            = dev_lim->max_mtu;
 185         mdev->limits.gid_table_len      = dev_lim->max_gids;
 186         mdev->limits.pkey_table_len     = dev_lim->max_pkeys;
 187         mdev->limits.local_ca_ack_delay = dev_lim->local_ca_ack_delay;
 188         mdev->limits.max_sg             = dev_lim->max_sg;
 189         mdev->limits.max_wqes           = dev_lim->max_qp_sz;
 190         mdev->limits.max_qp_init_rdma   = dev_lim->max_requester_per_qp;
 191         mdev->limits.reserved_qps       = dev_lim->reserved_qps;
 192         mdev->limits.max_srq_wqes       = dev_lim->max_srq_sz;
 193         mdev->limits.reserved_srqs      = dev_lim->reserved_srqs;
 194         mdev->limits.reserved_eecs      = dev_lim->reserved_eecs;
 195         mdev->limits.max_desc_sz        = dev_lim->max_desc_sz;
 196         mdev->limits.max_srq_sge        = mthca_max_srq_sge(mdev);
 197         /*
 198          * Subtract 1 from the limit because we need to allocate a
 199          * spare CQE so the HCA HW can tell the difference between an
 200          * empty CQ and a full CQ.
 201          */
 202         mdev->limits.max_cqes           = dev_lim->max_cq_sz - 1;
 203         mdev->limits.reserved_cqs       = dev_lim->reserved_cqs;
 204         mdev->limits.reserved_eqs       = dev_lim->reserved_eqs;
 205         mdev->limits.reserved_mtts      = dev_lim->reserved_mtts;
 206         mdev->limits.reserved_mrws      = dev_lim->reserved_mrws;
 207         mdev->limits.reserved_uars      = dev_lim->reserved_uars;
 208         mdev->limits.reserved_pds       = dev_lim->reserved_pds;
 209         mdev->limits.port_width_cap     = dev_lim->max_port_width;
 210         mdev->limits.page_size_cap      = ~(u32) (dev_lim->min_page_sz - 1);
 211         mdev->limits.flags              = dev_lim->flags;
 212         /*
 213          * For old FW that doesn't return static rate support, use a
 214          * value of 0x3 (only static rate values of 0 or 1 are handled),
 215          * except on Sinai, where even old FW can handle static rate
 216          * values of 2 and 3.
 217          */
 218         if (dev_lim->stat_rate_support)
 219                 mdev->limits.stat_rate_support = dev_lim->stat_rate_support;
 220         else if (mdev->mthca_flags & MTHCA_FLAG_SINAI_OPT)
 221                 mdev->limits.stat_rate_support = 0xf;
 222         else
 223                 mdev->limits.stat_rate_support = 0x3;
 224
 225         /* IB_DEVICE_RESIZE_MAX_WR not supported by driver.
 226            May be doable since hardware supports it for SRQ.
 227
 228            IB_DEVICE_N_NOTIFY_CQ is supported by hardware but not by driver.
 229
 230            IB_DEVICE_SRQ_RESIZE is supported by hardware but SRQ is not
 231            supported by driver. */
 232         mdev->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT |
 233                 IB_DEVICE_PORT_ACTIVE_EVENT |
 234                 IB_DEVICE_SYS_IMAGE_GUID |
 235                 IB_DEVICE_RC_RNR_NAK_GEN;
 236
 237         if (dev_lim->flags & DEV_LIM_FLAG_BAD_PKEY_CNTR)
 238                 mdev->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR;
 239
 240         if (dev_lim->flags & DEV_LIM_FLAG_BAD_QKEY_CNTR)
 241                 mdev->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR;
 242
 243         if (dev_lim->flags & DEV_LIM_FLAG_RAW_MULTI)
 244                 mdev->device_cap_flags |= IB_DEVICE_RAW_MULTI;
 245
 246         if (dev_lim->flags & DEV_LIM_FLAG_AUTO_PATH_MIG)
 247                 mdev->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG;
 248
 249         if (dev_lim->flags & DEV_LIM_FLAG_UD_AV_PORT_ENFORCE)
 250                 mdev->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE;
 251
 252         if (dev_lim->flags & DEV_LIM_FLAG_SRQ)
 253                 mdev->mthca_flags |= MTHCA_FLAG_SRQ;
 254
 255         return 0;
 256 }
 257
 258 static int mthca_init_tavor(struct mthca_dev *mdev)
 259 {
 260         u8 status;
 261         int err;
 262         struct mthca_dev_lim        dev_lim;
 263         struct mthca_profile        profile;
 264         struct mthca_init_hca_param init_hca;
 265
 266         err = mthca_SYS_EN(mdev, &status);
 267         if (err) {
 268                 mthca_err(mdev, "SYS_EN command failed, aborting.\n");
 269                 return err;
 270         }
 271         if (status) {
 272                 mthca_err(mdev, "SYS_EN returned status 0x%02x, "
 273                           "aborting.\n", status);
 274                 return -EINVAL;
 275         }
 276
 277         err = mthca_QUERY_FW(mdev, &status);
 278         if (err) {
 279                 mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
 280                 goto err_disable;
 281         }
 282         if (status) {
 283                 mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
 284                           "aborting.\n", status);
 285                 err = -EINVAL;
 286                 goto err_disable;
 287         }
 288         err = mthca_QUERY_DDR(mdev, &status);
 289         if (err) {
 290                 mthca_err(mdev, "QUERY_DDR command failed, aborting.\n");
 291                 goto err_disable;
 292         }
 293         if (status) {
 294                 mthca_err(mdev, "QUERY_DDR returned status 0x%02x, "
 295                           "aborting.\n", status);
 296                 err = -EINVAL;
 297                 goto err_disable;
 298         }
 299
 300         err = mthca_dev_lim(mdev, &dev_lim);
 301         if (err) {
 302                 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
 303                 goto err_disable;
 304         }
 305
 306         profile = default_profile;
 307         profile.num_uar   = dev_lim.uar_size / PAGE_SIZE;
 308         profile.uarc_size = 0;
 309         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 310                 profile.num_srq = dev_lim.max_srqs;
 311
 312         err = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
 313         if (err < 0)
 314                 goto err_disable;
 315
 316         err = mthca_INIT_HCA(mdev, &init_hca, &status);
 317         if (err) {
 318                 mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
 319                 goto err_disable;
 320         }
 321         if (status) {
 322                 mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
 323                           "aborting.\n", status);
 324                 err = -EINVAL;
 325                 goto err_disable;
 326         }
 327
 328         return 0;
 329
 330 err_disable:
 331         mthca_SYS_DIS(mdev, &status);
 332
 333         return err;
 334 }
 335
 336 static int mthca_load_fw(struct mthca_dev *mdev)
 337 {
 338         u8 status;
 339         int err;
 340
 341         /* FIXME: use HCA-attached memory for FW if present */
 342
 343         mdev->fw.arbel.fw_icm =
 344                 mthca_alloc_icm(mdev, mdev->fw.arbel.fw_pages,
 345                                 GFP_HIGHUSER | __GFP_NOWARN);
 346         if (!mdev->fw.arbel.fw_icm) {
 347                 mthca_err(mdev, "Couldn't allocate FW area, aborting.\n");
 348                 return -ENOMEM;
 349         }
 350
 351         err = mthca_MAP_FA(mdev, mdev->fw.arbel.fw_icm, &status);
 352         if (err) {
 353                 mthca_err(mdev, "MAP_FA command failed, aborting.\n");
 354                 goto err_free;
 355         }
 356         if (status) {
 357                 mthca_err(mdev, "MAP_FA returned status 0x%02x, aborting.\n", status);
 358                 err = -EINVAL;
 359                 goto err_free;
 360         }
 361         err = mthca_RUN_FW(mdev, &status);
 362         if (err) {
 363                 mthca_err(mdev, "RUN_FW command failed, aborting.\n");
 364                 goto err_unmap_fa;
 365         }
 366         if (status) {
 367                 mthca_err(mdev, "RUN_FW returned status 0x%02x, aborting.\n", status);
 368                 err = -EINVAL;
 369                 goto err_unmap_fa;
 370         }
 371
 372         return 0;
 373
 374 err_unmap_fa:
 375         mthca_UNMAP_FA(mdev, &status);
 376
 377 err_free:
 378         mthca_free_icm(mdev, mdev->fw.arbel.fw_icm);
 379         return err;
 380 }
 381
 382 static int mthca_init_icm(struct mthca_dev *mdev,
 383                           struct mthca_dev_lim *dev_lim,
 384                           struct mthca_init_hca_param *init_hca,
 385                           u64 icm_size)
 386 {
 387         u64 aux_pages;
 388         u8 status;
 389         int err;
 390
 391         err = mthca_SET_ICM_SIZE(mdev, icm_size, &aux_pages, &status);
 392         if (err) {
 393                 mthca_err(mdev, "SET_ICM_SIZE command failed, aborting.\n");
 394                 return err;
 395         }
 396         if (status) {
 397                 mthca_err(mdev, "SET_ICM_SIZE returned status 0x%02x, "
 398                           "aborting.\n", status);
 399                 return -EINVAL;
 400         }
 401
 402         mthca_dbg(mdev, "%lld KB of HCA context requires %lld KB aux memory.\n",
 403                   (unsigned long long) icm_size >> 10,
 404                   (unsigned long long) aux_pages << 2);
 405
 406         mdev->fw.arbel.aux_icm = mthca_alloc_icm(mdev, aux_pages,
 407                                                  GFP_HIGHUSER | __GFP_NOWARN);
 408         if (!mdev->fw.arbel.aux_icm) {
 409                 mthca_err(mdev, "Couldn't allocate aux memory, aborting.\n");
 410                 return -ENOMEM;
 411         }
 412
 413         err = mthca_MAP_ICM_AUX(mdev, mdev->fw.arbel.aux_icm, &status);
 414         if (err) {
 415                 mthca_err(mdev, "MAP_ICM_AUX command failed, aborting.\n");
 416                 goto err_free_aux;
 417         }
 418         if (status) {
 419                 mthca_err(mdev, "MAP_ICM_AUX returned status 0x%02x, aborting.\n", status);
 420                 err = -EINVAL;
 421                 goto err_free_aux;
 422         }
 423
 424         err = mthca_map_eq_icm(mdev, init_hca->eqc_base);
 425         if (err) {
 426                 mthca_err(mdev, "Failed to map EQ context memory, aborting.\n");
 427                 goto err_unmap_aux;
 428         }
 429
 430         mdev->mr_table.mtt_table = mthca_alloc_icm_table(mdev, init_hca->mtt_base,
 431                                                          MTHCA_MTT_SEG_SIZE,
 432                                                          mdev->limits.num_mtt_segs,
 433                                                          mdev->limits.reserved_mtts, 1);
 434         if (!mdev->mr_table.mtt_table) {
 435                 mthca_err(mdev, "Failed to map MTT context memory, aborting.\n");
 436                 err = -ENOMEM;
 437                 goto err_unmap_eq;
 438         }
 439
 440         mdev->mr_table.mpt_table = mthca_alloc_icm_table(mdev, init_hca->mpt_base,
 441                                                          dev_lim->mpt_entry_sz,
 442                                                          mdev->limits.num_mpts,
 443                                                          mdev->limits.reserved_mrws, 1);
 444         if (!mdev->mr_table.mpt_table) {
 445                 mthca_err(mdev, "Failed to map MPT context memory, aborting.\n");
 446                 err = -ENOMEM;
 447                 goto err_unmap_mtt;
 448         }
 449
 450         mdev->qp_table.qp_table = mthca_alloc_icm_table(mdev, init_hca->qpc_base,
 451                                                         dev_lim->qpc_entry_sz,
 452                                                         mdev->limits.num_qps,
 453                                                         mdev->limits.reserved_qps, 0);
 454         if (!mdev->qp_table.qp_table) {
 455                 mthca_err(mdev, "Failed to map QP context memory, aborting.\n");
 456                 err = -ENOMEM;
 457                 goto err_unmap_mpt;
 458         }
 459
 460         mdev->qp_table.eqp_table = mthca_alloc_icm_table(mdev, init_hca->eqpc_base,
 461                                                          dev_lim->eqpc_entry_sz,
 462                                                          mdev->limits.num_qps,
 463                                                          mdev->limits.reserved_qps, 0);
 464         if (!mdev->qp_table.eqp_table) {
 465                 mthca_err(mdev, "Failed to map EQP context memory, aborting.\n");
 466                 err = -ENOMEM;
 467                 goto err_unmap_qp;
 468         }
 469
 470         mdev->qp_table.rdb_table = mthca_alloc_icm_table(mdev, init_hca->rdb_base,
 471                                                          MTHCA_RDB_ENTRY_SIZE,
 472                                                          mdev->limits.num_qps <<
 473                                                          mdev->qp_table.rdb_shift,
 474                                                          0, 0);
 475         if (!mdev->qp_table.rdb_table) {
 476                 mthca_err(mdev, "Failed to map RDB context memory, aborting\n");
 477                 err = -ENOMEM;
 478                 goto err_unmap_eqp;
 479         }
 480
 481        mdev->cq_table.table = mthca_alloc_icm_table(mdev, init_hca->cqc_base,
 482                                                     dev_lim->cqc_entry_sz,
 483                                                     mdev->limits.num_cqs,
 484                                                     mdev->limits.reserved_cqs, 0);
 485         if (!mdev->cq_table.table) {
 486                 mthca_err(mdev, "Failed to map CQ context memory, aborting.\n");
 487                 err = -ENOMEM;
 488                 goto err_unmap_rdb;
 489         }
 490
 491         if (mdev->mthca_flags & MTHCA_FLAG_SRQ) {
 492                 mdev->srq_table.table =
 493                         mthca_alloc_icm_table(mdev, init_hca->srqc_base,
 494                                               dev_lim->srq_entry_sz,
 495                                               mdev->limits.num_srqs,
 496                                               mdev->limits.reserved_srqs, 0);
 497                 if (!mdev->srq_table.table) {
 498                         mthca_err(mdev, "Failed to map SRQ context memory, "
 499                                   "aborting.\n");
 500                         err = -ENOMEM;
 501                         goto err_unmap_cq;
 502                 }
 503         }
 504
 505         /*
 506          * It's not strictly required, but for simplicity just map the
 507          * whole multicast group table now.  The table isn't very big
 508          * and it's a lot easier than trying to track ref counts.
 509          */
 510         mdev->mcg_table.table = mthca_alloc_icm_table(mdev, init_hca->mc_base,
 511                                                       MTHCA_MGM_ENTRY_SIZE,
 512                                                       mdev->limits.num_mgms +
 513                                                       mdev->limits.num_amgms,
 514                                                       mdev->limits.num_mgms +
 515                                                       mdev->limits.num_amgms,
 516                                                       0);
 517         if (!mdev->mcg_table.table) {
 518                 mthca_err(mdev, "Failed to map MCG context memory, aborting.\n");
 519                 err = -ENOMEM;
 520                 goto err_unmap_srq;
 521         }
 522
 523         return 0;
 524
 525 err_unmap_srq:
 526         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 527                 mthca_free_icm_table(mdev, mdev->srq_table.table);
 528
 529 err_unmap_cq:
 530         mthca_free_icm_table(mdev, mdev->cq_table.table);
 531
 532 err_unmap_rdb:
 533         mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
 534
 535 err_unmap_eqp:
 536         mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
 537
 538 err_unmap_qp:
 539         mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
 540
 541 err_unmap_mpt:
 542         mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
 543
 544 err_unmap_mtt:
 545         mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
 546
 547 err_unmap_eq:
 548         mthca_unmap_eq_icm(mdev);
 549
 550 err_unmap_aux:
 551         mthca_UNMAP_ICM_AUX(mdev, &status);
 552
 553 err_free_aux:
 554         mthca_free_icm(mdev, mdev->fw.arbel.aux_icm);
 555
 556         return err;
 557 }
 558
 559 static void mthca_free_icms(struct mthca_dev *mdev)
 560 {
 561         u8 status;
 562
 563         mthca_free_icm_table(mdev, mdev->mcg_table.table);
 564         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 565                 mthca_free_icm_table(mdev, mdev->srq_table.table);
 566         mthca_free_icm_table(mdev, mdev->cq_table.table);
 567         mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
 568         mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
 569         mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
 570         mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
 571         mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
 572         mthca_unmap_eq_icm(mdev);
 573
 574         mthca_UNMAP_ICM_AUX(mdev, &status);
 575         mthca_free_icm(mdev, mdev->fw.arbel.aux_icm);
 576 }
 577
 578 static int mthca_init_arbel(struct mthca_dev *mdev)
 579 {
 580         struct mthca_dev_lim        dev_lim;
 581         struct mthca_profile        profile;
 582         struct mthca_init_hca_param init_hca;
 583         u64 icm_size;
 584         u8 status;
 585         int err;
 586
 587         err = mthca_QUERY_FW(mdev, &status);
 588         if (err) {
 589                 mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
 590                 return err;
 591         }
 592         if (status) {
 593                 mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
 594                           "aborting.\n", status);
 595                 return -EINVAL;
 596         }
 597
 598         err = mthca_ENABLE_LAM(mdev, &status);
 599         if (err) {
 600                 mthca_err(mdev, "ENABLE_LAM command failed, aborting.\n");
 601                 return err;
 602         }
 603         if (status == MTHCA_CMD_STAT_LAM_NOT_PRE) {
 604                 mthca_dbg(mdev, "No HCA-attached memory (running in MemFree mode)\n");
 605                 mdev->mthca_flags |= MTHCA_FLAG_NO_LAM;
 606         } else if (status) {
 607                 mthca_err(mdev, "ENABLE_LAM returned status 0x%02x, "
 608                           "aborting.\n", status);
 609                 return -EINVAL;
 610         }
 611
 612         err = mthca_load_fw(mdev);
 613         if (err) {
 614                 mthca_err(mdev, "Failed to start FW, aborting.\n");
 615                 goto err_disable;
 616         }
 617
 618         err = mthca_dev_lim(mdev, &dev_lim);
 619         if (err) {
 620                 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
 621                 goto err_stop_fw;
 622         }
 623
 624         profile = default_profile;
 625         profile.num_uar  = dev_lim.uar_size / PAGE_SIZE;
 626         profile.num_udav = 0;
 627         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 628                 profile.num_srq = dev_lim.max_srqs;
 629
 630         icm_size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
 631         if ((int) icm_size < 0) {
 632                 err = icm_size;
 633                 goto err_stop_fw;
 634         }
 635
 636         err = mthca_init_icm(mdev, &dev_lim, &init_hca, icm_size);
 637         if (err)
 638                 goto err_stop_fw;
 639
 640         err = mthca_INIT_HCA(mdev, &init_hca, &status);
 641         if (err) {
 642                 mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
 643                 goto err_free_icm;
 644         }
 645         if (status) {
 646                 mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
 647                           "aborting.\n", status);
 648                 err = -EINVAL;
 649                 goto err_free_icm;
 650         }
 651
 652         return 0;
 653
 654 err_free_icm:
 655         mthca_free_icms(mdev);
 656
 657 err_stop_fw:
 658         mthca_UNMAP_FA(mdev, &status);
 659         mthca_free_icm(mdev, mdev->fw.arbel.fw_icm);
 660
 661 err_disable:
 662         if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
 663                 mthca_DISABLE_LAM(mdev, &status);
 664
 665         return err;
 666 }
 667
 668 static void mthca_close_hca(struct mthca_dev *mdev)
 669 {
 670         u8 status;
 671
 672         mthca_CLOSE_HCA(mdev, 0, &status);
 673
 674         if (mthca_is_memfree(mdev)) {
 675                 mthca_free_icms(mdev);
 676
 677                 mthca_UNMAP_FA(mdev, &status);
 678                 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm);
 679
 680                 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
 681                         mthca_DISABLE_LAM(mdev, &status);
 682         } else
 683                 mthca_SYS_DIS(mdev, &status);
 684 }
 685
 686 static int mthca_init_hca(struct mthca_dev *mdev)
 687 {
 688         u8 status;
 689         int err;
 690         struct mthca_adapter adapter;
 691
 692         if (mthca_is_memfree(mdev))
 693                 err = mthca_init_arbel(mdev);
 694         else
 695                 err = mthca_init_tavor(mdev);
 696
 697         if (err)
 698                 return err;
 699
 700         err = mthca_QUERY_ADAPTER(mdev, &adapter, &status);
 701         if (err) {
 702                 mthca_err(mdev, "QUERY_ADAPTER command failed, aborting.\n");
 703                 goto err_close;
 704         }
 705         if (status) {
 706                 mthca_err(mdev, "QUERY_ADAPTER returned status 0x%02x, "
 707                           "aborting.\n", status);
 708                 err = -EINVAL;
 709                 goto err_close;
 710         }
 711
 712         mdev->eq_table.inta_pin = adapter.inta_pin;
 713         mdev->rev_id            = adapter.revision_id;
 714         memcpy(mdev->board_id, adapter.board_id, sizeof mdev->board_id);
 715
 716         return 0;
 717
 718 err_close:
 719         mthca_close_hca(mdev);
 720         return err;
 721 }
 722
 723 static int mthca_setup_hca(struct mthca_dev *dev)
 724 {
 725         int err;
 726         u8 status;
 727
 728         MTHCA_INIT_DOORBELL_LOCK(&dev->doorbell_lock);
 729
 730         err = mthca_init_uar_table(dev);
 731         if (err) {
 732                 mthca_err(dev, "Failed to initialize "
 733                           "user access region table, aborting.\n");
 734                 return err;
 735         }
 736
 737         err = mthca_uar_alloc(dev, &dev->driver_uar);
 738         if (err) {
 739                 mthca_err(dev, "Failed to allocate driver access region, "
 740                           "aborting.\n");
 741                 goto err_uar_table_free;
 742         }
 743
 744         dev->kar = ioremap(dev->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
 745         if (!dev->kar) {
 746                 mthca_err(dev, "Couldn't map kernel access region, "
 747                           "aborting.\n");
 748                 err = -ENOMEM;
 749                 goto err_uar_free;
 750         }
 751
 752         err = mthca_init_pd_table(dev);
 753         if (err) {
 754                 mthca_err(dev, "Failed to initialize "
 755                           "protection domain table, aborting.\n");
 756                 goto err_kar_unmap;
 757         }
 758
 759         err = mthca_init_mr_table(dev);
 760         if (err) {
 761                 mthca_err(dev, "Failed to initialize "
 762                           "memory region table, aborting.\n");
 763                 goto err_pd_table_free;
 764         }
 765
 766         err = mthca_pd_alloc(dev, 1, &dev->driver_pd);
 767         if (err) {
 768                 mthca_err(dev, "Failed to create driver PD, "
 769                           "aborting.\n");
 770                 goto err_mr_table_free;
 771         }
 772
 773         err = mthca_init_eq_table(dev);
 774         if (err) {
 775                 mthca_err(dev, "Failed to initialize "
 776                           "event queue table, aborting.\n");
 777                 goto err_pd_free;
 778         }
 779
 780         err = mthca_cmd_use_events(dev);
 781         if (err) {
 782                 mthca_err(dev, "Failed to switch to event-driven "
 783                           "firmware commands, aborting.\n");
 784                 goto err_eq_table_free;
 785         }
 786
 787         err = mthca_NOP(dev, &status);
 788         if (err || status) {
 789                 mthca_err(dev, "NOP command failed to generate interrupt (IRQ %d), aborting.\n",
 790                           dev->mthca_flags & MTHCA_FLAG_MSI_X ?
 791                           dev->eq_table.eq[MTHCA_EQ_CMD].msi_x_vector :
 792                           dev->pdev->irq);
 793                 if (dev->mthca_flags & (MTHCA_FLAG_MSI | MTHCA_FLAG_MSI_X))
 794                         mthca_err(dev, "Try again with MSI/MSI-X disabled.\n");
 795                 else
 796                         mthca_err(dev, "BIOS or ACPI interrupt routing problem?\n");
 797
 798                 goto err_cmd_poll;
 799         }
 800
 801         mthca_dbg(dev, "NOP command IRQ test passed\n");
 802
 803         err = mthca_init_cq_table(dev);
 804         if (err) {
 805                 mthca_err(dev, "Failed to initialize "
 806                           "completion queue table, aborting.\n");
 807                 goto err_cmd_poll;
 808         }
 809
 810         err = mthca_init_srq_table(dev);
 811         if (err) {
 812                 mthca_err(dev, "Failed to initialize "
 813                           "shared receive queue table, aborting.\n");
 814                 goto err_cq_table_free;
 815         }
 816
 817         err = mthca_init_qp_table(dev);
 818         if (err) {
 819                 mthca_err(dev, "Failed to initialize "
 820                           "queue pair table, aborting.\n");
 821                 goto err_srq_table_free;
 822         }
 823
 824         err = mthca_init_av_table(dev);
 825         if (err) {
 826                 mthca_err(dev, "Failed to initialize "
 827                           "address vector table, aborting.\n");
 828                 goto err_qp_table_free;
 829         }
 830
 831         err = mthca_init_mcg_table(dev);
 832         if (err) {
 833                 mthca_err(dev, "Failed to initialize "
 834                           "multicast group table, aborting.\n");
 835                 goto err_av_table_free;
 836         }
 837
 838         return 0;
 839
 840 err_av_table_free:
 841         mthca_cleanup_av_table(dev);
 842
 843 err_qp_table_free:
 844         mthca_cleanup_qp_table(dev);
 845
 846 err_srq_table_free:
 847         mthca_cleanup_srq_table(dev);
 848
 849 err_cq_table_free:
 850         mthca_cleanup_cq_table(dev);
 851
 852 err_cmd_poll:
 853         mthca_cmd_use_polling(dev);
 854
 855 err_eq_table_free:
 856         mthca_cleanup_eq_table(dev);
 857
 858 err_pd_free:
 859         mthca_pd_free(dev, &dev->driver_pd);
 860
 861 err_mr_table_free:
 862         mthca_cleanup_mr_table(dev);
 863
 864 err_pd_table_free:
 865         mthca_cleanup_pd_table(dev);
 866
 867 err_kar_unmap:
 868         iounmap(dev->kar);
 869
 870 err_uar_free:
 871         mthca_uar_free(dev, &dev->driver_uar);
 872
 873 err_uar_table_free:
 874         mthca_cleanup_uar_table(dev);
 875         return err;
 876 }
 877
 878 static int mthca_request_regions(struct pci_dev *pdev, int ddr_hidden)
 879 {
 880         int err;
 881
 882         /*
 883          * We can't just use pci_request_regions() because the MSI-X
 884          * table is right in the middle of the first BAR.  If we did
 885          * pci_request_region and grab all of the first BAR, then
 886          * setting up MSI-X would fail, since the PCI core wants to do
 887          * request_mem_region on the MSI-X vector table.
 888          *
 889          * So just request what we need right now, and request any
 890          * other regions we need when setting up EQs.
 891          */
 892         if (!request_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
 893                                 MTHCA_HCR_SIZE, DRV_NAME))
 894                 return -EBUSY;
 895
 896         err = pci_request_region(pdev, 2, DRV_NAME);
 897         if (err)
 898                 goto err_bar2_failed;
 899
 900         if (!ddr_hidden) {
 901                 err = pci_request_region(pdev, 4, DRV_NAME);
 902                 if (err)
 903                         goto err_bar4_failed;
 904         }
 905
 906         return 0;
 907
 908 err_bar4_failed:
 909         pci_release_region(pdev, 2);
 910
 911 err_bar2_failed:
 912         release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
 913                            MTHCA_HCR_SIZE);
 914
 915         return err;
 916 }
 917
 918 static void mthca_release_regions(struct pci_dev *pdev,
 919                                   int ddr_hidden)
 920 {
 921         if (!ddr_hidden)
 922                 pci_release_region(pdev, 4);
 923
 924         pci_release_region(pdev, 2);
 925
 926         release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
 927                            MTHCA_HCR_SIZE);
 928 }
 929
 930 static int mthca_enable_msi_x(struct mthca_dev *mdev)
 931 {
 932         struct msix_entry entries[3];
 933         int err;
 934
 935         entries[0].entry = 0;
 936         entries[1].entry = 1;
 937         entries[2].entry = 2;
 938
 939         err = pci_enable_msix(mdev->pdev, entries, ARRAY_SIZE(entries));
 940         if (err) {
 941                 if (err > 0)
 942                         mthca_info(mdev, "Only %d MSI-X vectors available, "
 943                                    "not using MSI-X\n", err);
 944                 return err;
 945         }
 946
 947         mdev->eq_table.eq[MTHCA_EQ_COMP ].msi_x_vector = entries[0].vector;
 948         mdev->eq_table.eq[MTHCA_EQ_ASYNC].msi_x_vector = entries[1].vector;
 949         mdev->eq_table.eq[MTHCA_EQ_CMD  ].msi_x_vector = entries[2].vector;
 950
 951         return 0;
 952 }
 953
 954 /* Types of supported HCA */
 955 enum {
 956         TAVOR,                  /* MT23108                        */
 957         ARBEL_COMPAT,           /* MT25208 in Tavor compat mode   */
 958         ARBEL_NATIVE,           /* MT25208 with extended features */
 959         SINAI                   /* MT25204 */
 960 };
 961
 962 #define MTHCA_FW_VER(major, minor, subminor) \
 963         (((u64) (major) << 32) | ((u64) (minor) << 16) | (u64) (subminor))
 964
 965 static struct {
 966         u64 latest_fw;
 967         u32 flags;
 968 } mthca_hca_table[] = {
 969         [TAVOR]        = { .latest_fw = MTHCA_FW_VER(3, 4, 0),
 970                            .flags     = 0 },
 971         [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 7, 600),
 972                            .flags     = MTHCA_FLAG_PCIE },
 973         [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 1, 400),
 974                            .flags     = MTHCA_FLAG_MEMFREE |
 975                                         MTHCA_FLAG_PCIE },
 976         [SINAI]        = { .latest_fw = MTHCA_FW_VER(1, 1, 0),
 977                            .flags     = MTHCA_FLAG_MEMFREE |
 978                                         MTHCA_FLAG_PCIE    |
 979                                         MTHCA_FLAG_SINAI_OPT }
 980 };
 981
 982 static int __mthca_init_one(struct pci_dev *pdev, int hca_type)
 983 {
 984         int ddr_hidden = 0;
 985         int err;
 986         struct mthca_dev *mdev;
 987
 988         printk(KERN_INFO PFX "Initializing %s\n",
 989                pci_name(pdev));
 990
 991         err = pci_enable_device(pdev);
 992         if (err) {
 993                 dev_err(&pdev->dev, "Cannot enable PCI device, "
 994                         "aborting.\n");
 995                 return err;
 996         }
 997
 998         /*
 999          * Check for BARs.  We expect 0: 1MB, 2: 8MB, 4: DDR (may not
1000          * be present)
1001          */
1002         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) ||
1003             pci_resource_len(pdev, 0) != 1 << 20) {
1004                 dev_err(&pdev->dev, "Missing DCS, aborting.\n");
1005                 err = -ENODEV;
1006                 goto err_disable_pdev;
1007         }
1008         if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
1009                 dev_err(&pdev->dev, "Missing UAR, aborting.\n");
1010                 err = -ENODEV;
1011                 goto err_disable_pdev;
1012         }
1013         if (!(pci_resource_flags(pdev, 4) & IORESOURCE_MEM))
1014                 ddr_hidden = 1;
1015
1016         err = mthca_request_regions(pdev, ddr_hidden);
1017         if (err) {
1018                 dev_err(&pdev->dev, "Cannot obtain PCI resources, "
1019                         "aborting.\n");
1020                 goto err_disable_pdev;
1021         }
1022
1023         pci_set_master(pdev);
1024
1025         err = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
1026         if (err) {
1027                 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n");
1028                 err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
1029                 if (err) {
1030                         dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n");
1031                         goto err_free_res;
1032                 }
1033         }
1034         err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
1035         if (err) {
1036                 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit "
1037                          "consistent PCI DMA mask.\n");
1038                 err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
1039                 if (err) {
1040                         dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
1041                                 "aborting.\n");
1042                         goto err_free_res;
1043                 }
1044         }
1045
1046         mdev = (struct mthca_dev *) ib_alloc_device(sizeof *mdev);
1047         if (!mdev) {
1048                 dev_err(&pdev->dev, "Device struct alloc failed, "
1049                         "aborting.\n");
1050                 err = -ENOMEM;
1051                 goto err_free_res;
1052         }
1053
1054         mdev->pdev = pdev;
1055
1056         mdev->mthca_flags = mthca_hca_table[hca_type].flags;
1057         if (ddr_hidden)
1058                 mdev->mthca_flags |= MTHCA_FLAG_DDR_HIDDEN;
1059
1060         /*
1061          * Now reset the HCA before we touch the PCI capabilities or
1062          * attempt a firmware command, since a boot ROM may have left
1063          * the HCA in an undefined state.
1064          */
1065         err = mthca_reset(mdev);
1066         if (err) {
1067                 mthca_err(mdev, "Failed to reset HCA, aborting.\n");
1068                 goto err_free_dev;
1069         }
1070
1071         if (msi_x && !mthca_enable_msi_x(mdev))
1072                 mdev->mthca_flags |= MTHCA_FLAG_MSI_X;
1073         if (msi && !(mdev->mthca_flags & MTHCA_FLAG_MSI_X) &&
1074             !pci_enable_msi(pdev))
1075                 mdev->mthca_flags |= MTHCA_FLAG_MSI;
1076
1077         if (mthca_cmd_init(mdev)) {
1078                 mthca_err(mdev, "Failed to init command interface, aborting.\n");
1079                 goto err_free_dev;
1080         }
1081
1082         err = mthca_tune_pci(mdev);
1083         if (err)
1084                 goto err_cmd;
1085
1086         err = mthca_init_hca(mdev);
1087         if (err)
1088                 goto err_cmd;
1089
1090         if (mdev->fw_ver < mthca_hca_table[hca_type].latest_fw) {
1091                 mthca_warn(mdev, "HCA FW version %d.%d.%d is old (%d.%d.%d is current).\n",
1092                            (int) (mdev->fw_ver >> 32), (int) (mdev->fw_ver >> 16) & 0xffff,
1093                            (int) (mdev->fw_ver & 0xffff),
1094                            (int) (mthca_hca_table[hca_type].latest_fw >> 32),
1095                            (int) (mthca_hca_table[hca_type].latest_fw >> 16) & 0xffff,
1096                            (int) (mthca_hca_table[hca_type].latest_fw & 0xffff));
1097                 mthca_warn(mdev, "If you have problems, try updating your HCA FW.\n");
1098         }
1099
1100         err = mthca_setup_hca(mdev);
1101         if (err)
1102                 goto err_close;
1103
1104         err = mthca_register_device(mdev);
1105         if (err)
1106                 goto err_cleanup;
1107
1108         err = mthca_create_agents(mdev);
1109         if (err)
1110                 goto err_unregister;
1111
1112         pci_set_drvdata(pdev, mdev);
1113         mdev->hca_type = hca_type;
1114
1115         return 0;
1116
1117 err_unregister:
1118         mthca_unregister_device(mdev);
1119
1120 err_cleanup:
1121         mthca_cleanup_mcg_table(mdev);
1122         mthca_cleanup_av_table(mdev);
1123         mthca_cleanup_qp_table(mdev);
1124         mthca_cleanup_srq_table(mdev);
1125         mthca_cleanup_cq_table(mdev);
1126         mthca_cmd_use_polling(mdev);
1127         mthca_cleanup_eq_table(mdev);
1128
1129         mthca_pd_free(mdev, &mdev->driver_pd);
1130
1131         mthca_cleanup_mr_table(mdev);
1132         mthca_cleanup_pd_table(mdev);
1133         mthca_cleanup_uar_table(mdev);
1134
1135 err_close:
1136         mthca_close_hca(mdev);
1137
1138 err_cmd:
1139         mthca_cmd_cleanup(mdev);
1140
1141 err_free_dev:
1142         if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1143                 pci_disable_msix(pdev);
1144         if (mdev->mthca_flags & MTHCA_FLAG_MSI)
1145                 pci_disable_msi(pdev);
1146
1147         ib_dealloc_device(&mdev->ib_dev);
1148
1149 err_free_res:
1150         mthca_release_regions(pdev, ddr_hidden);
1151
1152 err_disable_pdev:
1153         pci_disable_device(pdev);
1154         pci_set_drvdata(pdev, NULL);
1155         return err;
1156 }
1157
1158 static void __mthca_remove_one(struct pci_dev *pdev)
1159 {
1160         struct mthca_dev *mdev = pci_get_drvdata(pdev);
1161         u8 status;
1162         int p;
1163
1164         if (mdev) {
1165                 mthca_free_agents(mdev);
1166                 mthca_unregister_device(mdev);
1167
1168                 for (p = 1; p <= mdev->limits.num_ports; ++p)
1169                         mthca_CLOSE_IB(mdev, p, &status);
1170
1171                 mthca_cleanup_mcg_table(mdev);
1172                 mthca_cleanup_av_table(mdev);
1173                 mthca_cleanup_qp_table(mdev);
1174                 mthca_cleanup_srq_table(mdev);
1175                 mthca_cleanup_cq_table(mdev);
1176                 mthca_cmd_use_polling(mdev);
1177                 mthca_cleanup_eq_table(mdev);
1178
1179                 mthca_pd_free(mdev, &mdev->driver_pd);
1180
1181                 mthca_cleanup_mr_table(mdev);
1182                 mthca_cleanup_pd_table(mdev);
1183
1184                 iounmap(mdev->kar);
1185                 mthca_uar_free(mdev, &mdev->driver_uar);
1186                 mthca_cleanup_uar_table(mdev);
1187                 mthca_close_hca(mdev);
1188                 mthca_cmd_cleanup(mdev);
1189
1190                 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1191                         pci_disable_msix(pdev);
1192                 if (mdev->mthca_flags & MTHCA_FLAG_MSI)
1193                         pci_disable_msi(pdev);
1194
1195                 ib_dealloc_device(&mdev->ib_dev);
1196                 mthca_release_regions(pdev, mdev->mthca_flags &
1197                                       MTHCA_FLAG_DDR_HIDDEN);
1198                 pci_disable_device(pdev);
1199                 pci_set_drvdata(pdev, NULL);
1200         }
1201 }
1202
1203 int __mthca_restart_one(struct pci_dev *pdev)
1204 {
1205         struct mthca_dev *mdev;
1206
1207         mdev = pci_get_drvdata(pdev);
1208         if (!mdev)
1209                 return -ENODEV;
1210         __mthca_remove_one(pdev);
1211         return __mthca_init_one(pdev, mdev->hca_type);
1212 }
1213
1214 static int __devinit mthca_init_one(struct pci_dev *pdev,
1215                                     const struct pci_device_id *id)
1216 {
1217         static int mthca_version_printed = 0;
1218         int ret;
1219
1220         mutex_lock(&mthca_device_mutex);
1221
1222         if (!mthca_version_printed) {
1223                 printk(KERN_INFO "%s", mthca_version);
1224                 ++mthca_version_printed;
1225         }
1226
1227         if (id->driver_data >= ARRAY_SIZE(mthca_hca_table)) {
1228                 printk(KERN_ERR PFX "%s has invalid driver data %lx\n",
1229                        pci_name(pdev), id->driver_data);
1230                 mutex_unlock(&mthca_device_mutex);
1231                 return -ENODEV;
1232         }
1233
1234         ret = __mthca_init_one(pdev, id->driver_data);
1235
1236         mutex_unlock(&mthca_device_mutex);
1237
1238         return ret;
1239 }
1240
1241 static void __devexit mthca_remove_one(struct pci_dev *pdev)
1242 {
1243         mutex_lock(&mthca_device_mutex);
1244         __mthca_remove_one(pdev);
1245         mutex_unlock(&mthca_device_mutex);
1246 }
1247
1248 static struct pci_device_id mthca_pci_table[] = {
1249         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR),
1250           .driver_data = TAVOR },
1251         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_TAVOR),
1252           .driver_data = TAVOR },
1253         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1254           .driver_data = ARBEL_COMPAT },
1255         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1256           .driver_data = ARBEL_COMPAT },
1257         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL),
1258           .driver_data = ARBEL_NATIVE },
1259         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL),
1260           .driver_data = ARBEL_NATIVE },
1261         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI),
1262           .driver_data = SINAI },
1263         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI),
1264           .driver_data = SINAI },
1265         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1266           .driver_data = SINAI },
1267         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1268           .driver_data = SINAI },
1269         { 0, }
1270 };
1271
1272 MODULE_DEVICE_TABLE(pci, mthca_pci_table);
1273
1274 static struct pci_driver mthca_driver = {
1275         .name           = DRV_NAME,
1276         .id_table       = mthca_pci_table,
1277         .probe          = mthca_init_one,
1278         .remove         = __devexit_p(mthca_remove_one)
1279 };
1280
1281 static int __init mthca_init(void)
1282 {
1283         int ret;
1284
1285         mutex_init(&mthca_device_mutex);
1286         ret = mthca_catas_init();
1287         if (ret)
1288                 return ret;
1289
1290         ret = pci_register_driver(&mthca_driver);
1291         if (ret < 0) {
1292                 mthca_catas_cleanup();
1293                 return ret;
1294         }
1295
1296         return 0;
1297 }
1298
1299 static void __exit mthca_cleanup(void)
1300 {
1301         pci_unregister_driver(&mthca_driver);
1302         mthca_catas_cleanup();
1303 }
1304
1305 module_init(mthca_init);
1306 module_exit(mthca_cleanup);