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   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 = 1;
  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 (deprecated, use MSI-X instead)");
  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 DEFINE_MUTEX(mthca_device_mutex);
  84
  85 #define MTHCA_DEFAULT_NUM_QP            (1 << 16)
  86 #define MTHCA_DEFAULT_RDB_PER_QP        (1 << 2)
  87 #define MTHCA_DEFAULT_NUM_CQ            (1 << 16)
  88 #define MTHCA_DEFAULT_NUM_MCG           (1 << 13)
  89 #define MTHCA_DEFAULT_NUM_MPT           (1 << 17)
  90 #define MTHCA_DEFAULT_NUM_MTT           (1 << 20)
  91 #define MTHCA_DEFAULT_NUM_UDAV          (1 << 15)
  92 #define MTHCA_DEFAULT_NUM_RESERVED_MTTS (1 << 18)
  93 #define MTHCA_DEFAULT_NUM_UARC_SIZE     (1 << 18)
  94
  95 static struct mthca_profile hca_profile = {
  96         .num_qp             = MTHCA_DEFAULT_NUM_QP,
  97         .rdb_per_qp         = MTHCA_DEFAULT_RDB_PER_QP,
  98         .num_cq             = MTHCA_DEFAULT_NUM_CQ,
  99         .num_mcg            = MTHCA_DEFAULT_NUM_MCG,
 100         .num_mpt            = MTHCA_DEFAULT_NUM_MPT,
 101         .num_mtt            = MTHCA_DEFAULT_NUM_MTT,
 102         .num_udav           = MTHCA_DEFAULT_NUM_UDAV,          /* Tavor only */
 103         .fmr_reserved_mtts  = MTHCA_DEFAULT_NUM_RESERVED_MTTS, /* Tavor only */
 104         .uarc_size          = MTHCA_DEFAULT_NUM_UARC_SIZE,     /* Arbel only */
 105 };
 106
 107 module_param_named(num_qp, hca_profile.num_qp, int, 0444);
 108 MODULE_PARM_DESC(num_qp, "maximum number of QPs per HCA");
 109
 110 module_param_named(rdb_per_qp, hca_profile.rdb_per_qp, int, 0444);
 111 MODULE_PARM_DESC(rdb_per_qp, "number of RDB buffers per QP");
 112
 113 module_param_named(num_cq, hca_profile.num_cq, int, 0444);
 114 MODULE_PARM_DESC(num_cq, "maximum number of CQs per HCA");
 115
 116 module_param_named(num_mcg, hca_profile.num_mcg, int, 0444);
 117 MODULE_PARM_DESC(num_mcg, "maximum number of multicast groups per HCA");
 118
 119 module_param_named(num_mpt, hca_profile.num_mpt, int, 0444);
 120 MODULE_PARM_DESC(num_mpt,
 121                 "maximum number of memory protection table entries per HCA");
 122
 123 module_param_named(num_mtt, hca_profile.num_mtt, int, 0444);
 124 MODULE_PARM_DESC(num_mtt,
 125                  "maximum number of memory translation table segments per HCA");
 126
 127 module_param_named(num_udav, hca_profile.num_udav, int, 0444);
 128 MODULE_PARM_DESC(num_udav, "maximum number of UD address vectors per HCA");
 129
 130 module_param_named(fmr_reserved_mtts, hca_profile.fmr_reserved_mtts, int, 0444);
 131 MODULE_PARM_DESC(fmr_reserved_mtts,
 132                  "number of memory translation table segments reserved for FMR");
 133
 134 static const char mthca_version[] __devinitdata =
 135         DRV_NAME ": Mellanox InfiniBand HCA driver v"
 136         DRV_VERSION " (" DRV_RELDATE ")\n";
 137
 138 static int mthca_tune_pci(struct mthca_dev *mdev)
 139 {
 140         if (!tune_pci)
 141                 return 0;
 142
 143         /* First try to max out Read Byte Count */
 144         if (pci_find_capability(mdev->pdev, PCI_CAP_ID_PCIX)) {
 145                 if (pcix_set_mmrbc(mdev->pdev, pcix_get_max_mmrbc(mdev->pdev))) {
 146                         mthca_err(mdev, "Couldn't set PCI-X max read count, "
 147                                 "aborting.\n");
 148                         return -ENODEV;
 149                 }
 150         } else if (!(mdev->mthca_flags & MTHCA_FLAG_PCIE))
 151                 mthca_info(mdev, "No PCI-X capability, not setting RBC.\n");
 152
 153         if (pci_find_capability(mdev->pdev, PCI_CAP_ID_EXP)) {
 154                 if (pcie_set_readrq(mdev->pdev, 4096)) {
 155                         mthca_err(mdev, "Couldn't write PCI Express read request, "
 156                                 "aborting.\n");
 157                         return -ENODEV;
 158                 }
 159         } else if (mdev->mthca_flags & MTHCA_FLAG_PCIE)
 160                 mthca_info(mdev, "No PCI Express capability, "
 161                            "not setting Max Read Request Size.\n");
 162
 163         return 0;
 164 }
 165
 166 static int mthca_dev_lim(struct mthca_dev *mdev, struct mthca_dev_lim *dev_lim)
 167 {
 168         int err;
 169         u8 status;
 170
 171         err = mthca_QUERY_DEV_LIM(mdev, dev_lim, &status);
 172         if (err) {
 173                 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
 174                 return err;
 175         }
 176         if (status) {
 177                 mthca_err(mdev, "QUERY_DEV_LIM returned status 0x%02x, "
 178                           "aborting.\n", status);
 179                 return -EINVAL;
 180         }
 181         if (dev_lim->min_page_sz > PAGE_SIZE) {
 182                 mthca_err(mdev, "HCA minimum page size of %d bigger than "
 183                           "kernel PAGE_SIZE of %ld, aborting.\n",
 184                           dev_lim->min_page_sz, PAGE_SIZE);
 185                 return -ENODEV;
 186         }
 187         if (dev_lim->num_ports > MTHCA_MAX_PORTS) {
 188                 mthca_err(mdev, "HCA has %d ports, but we only support %d, "
 189                           "aborting.\n",
 190                           dev_lim->num_ports, MTHCA_MAX_PORTS);
 191                 return -ENODEV;
 192         }
 193
 194         if (dev_lim->uar_size > pci_resource_len(mdev->pdev, 2)) {
 195                 mthca_err(mdev, "HCA reported UAR size of 0x%x bigger than "
 196                           "PCI resource 2 size of 0x%llx, aborting.\n",
 197                           dev_lim->uar_size,
 198                           (unsigned long long)pci_resource_len(mdev->pdev, 2));
 199                 return -ENODEV;
 200         }
 201
 202         mdev->limits.num_ports          = dev_lim->num_ports;
 203         mdev->limits.vl_cap             = dev_lim->max_vl;
 204         mdev->limits.mtu_cap            = dev_lim->max_mtu;
 205         mdev->limits.gid_table_len      = dev_lim->max_gids;
 206         mdev->limits.pkey_table_len     = dev_lim->max_pkeys;
 207         mdev->limits.local_ca_ack_delay = dev_lim->local_ca_ack_delay;
 208         mdev->limits.max_sg             = dev_lim->max_sg;
 209         mdev->limits.max_wqes           = dev_lim->max_qp_sz;
 210         mdev->limits.max_qp_init_rdma   = dev_lim->max_requester_per_qp;
 211         mdev->limits.reserved_qps       = dev_lim->reserved_qps;
 212         mdev->limits.max_srq_wqes       = dev_lim->max_srq_sz;
 213         mdev->limits.reserved_srqs      = dev_lim->reserved_srqs;
 214         mdev->limits.reserved_eecs      = dev_lim->reserved_eecs;
 215         mdev->limits.max_desc_sz        = dev_lim->max_desc_sz;
 216         mdev->limits.max_srq_sge        = mthca_max_srq_sge(mdev);
 217         /*
 218          * Subtract 1 from the limit because we need to allocate a
 219          * spare CQE so the HCA HW can tell the difference between an
 220          * empty CQ and a full CQ.
 221          */
 222         mdev->limits.max_cqes           = dev_lim->max_cq_sz - 1;
 223         mdev->limits.reserved_cqs       = dev_lim->reserved_cqs;
 224         mdev->limits.reserved_eqs       = dev_lim->reserved_eqs;
 225         mdev->limits.reserved_mtts      = dev_lim->reserved_mtts;
 226         mdev->limits.reserved_mrws      = dev_lim->reserved_mrws;
 227         mdev->limits.reserved_uars      = dev_lim->reserved_uars;
 228         mdev->limits.reserved_pds       = dev_lim->reserved_pds;
 229         mdev->limits.port_width_cap     = dev_lim->max_port_width;
 230         mdev->limits.page_size_cap      = ~(u32) (dev_lim->min_page_sz - 1);
 231         mdev->limits.flags              = dev_lim->flags;
 232         /*
 233          * For old FW that doesn't return static rate support, use a
 234          * value of 0x3 (only static rate values of 0 or 1 are handled),
 235          * except on Sinai, where even old FW can handle static rate
 236          * values of 2 and 3.
 237          */
 238         if (dev_lim->stat_rate_support)
 239                 mdev->limits.stat_rate_support = dev_lim->stat_rate_support;
 240         else if (mdev->mthca_flags & MTHCA_FLAG_SINAI_OPT)
 241                 mdev->limits.stat_rate_support = 0xf;
 242         else
 243                 mdev->limits.stat_rate_support = 0x3;
 244
 245         /* IB_DEVICE_RESIZE_MAX_WR not supported by driver.
 246            May be doable since hardware supports it for SRQ.
 247
 248            IB_DEVICE_N_NOTIFY_CQ is supported by hardware but not by driver.
 249
 250            IB_DEVICE_SRQ_RESIZE is supported by hardware but SRQ is not
 251            supported by driver. */
 252         mdev->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT |
 253                 IB_DEVICE_PORT_ACTIVE_EVENT |
 254                 IB_DEVICE_SYS_IMAGE_GUID |
 255                 IB_DEVICE_RC_RNR_NAK_GEN;
 256
 257         if (dev_lim->flags & DEV_LIM_FLAG_BAD_PKEY_CNTR)
 258                 mdev->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR;
 259
 260         if (dev_lim->flags & DEV_LIM_FLAG_BAD_QKEY_CNTR)
 261                 mdev->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR;
 262
 263         if (dev_lim->flags & DEV_LIM_FLAG_RAW_MULTI)
 264                 mdev->device_cap_flags |= IB_DEVICE_RAW_MULTI;
 265
 266         if (dev_lim->flags & DEV_LIM_FLAG_AUTO_PATH_MIG)
 267                 mdev->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG;
 268
 269         if (dev_lim->flags & DEV_LIM_FLAG_UD_AV_PORT_ENFORCE)
 270                 mdev->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE;
 271
 272         if (dev_lim->flags & DEV_LIM_FLAG_SRQ)
 273                 mdev->mthca_flags |= MTHCA_FLAG_SRQ;
 274
 275         return 0;
 276 }
 277
 278 static int mthca_init_tavor(struct mthca_dev *mdev)
 279 {
 280         u8 status;
 281         int err;
 282         struct mthca_dev_lim        dev_lim;
 283         struct mthca_profile        profile;
 284         struct mthca_init_hca_param init_hca;
 285
 286         err = mthca_SYS_EN(mdev, &status);
 287         if (err) {
 288                 mthca_err(mdev, "SYS_EN command failed, aborting.\n");
 289                 return err;
 290         }
 291         if (status) {
 292                 mthca_err(mdev, "SYS_EN returned status 0x%02x, "
 293                           "aborting.\n", status);
 294                 return -EINVAL;
 295         }
 296
 297         err = mthca_QUERY_FW(mdev, &status);
 298         if (err) {
 299                 mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
 300                 goto err_disable;
 301         }
 302         if (status) {
 303                 mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
 304                           "aborting.\n", status);
 305                 err = -EINVAL;
 306                 goto err_disable;
 307         }
 308         err = mthca_QUERY_DDR(mdev, &status);
 309         if (err) {
 310                 mthca_err(mdev, "QUERY_DDR command failed, aborting.\n");
 311                 goto err_disable;
 312         }
 313         if (status) {
 314                 mthca_err(mdev, "QUERY_DDR returned status 0x%02x, "
 315                           "aborting.\n", status);
 316                 err = -EINVAL;
 317                 goto err_disable;
 318         }
 319
 320         err = mthca_dev_lim(mdev, &dev_lim);
 321         if (err) {
 322                 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
 323                 goto err_disable;
 324         }
 325
 326         profile = hca_profile;
 327         profile.num_uar   = dev_lim.uar_size / PAGE_SIZE;
 328         profile.uarc_size = 0;
 329         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 330                 profile.num_srq = dev_lim.max_srqs;
 331
 332         err = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
 333         if (err < 0)
 334                 goto err_disable;
 335
 336         err = mthca_INIT_HCA(mdev, &init_hca, &status);
 337         if (err) {
 338                 mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
 339                 goto err_disable;
 340         }
 341         if (status) {
 342                 mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
 343                           "aborting.\n", status);
 344                 err = -EINVAL;
 345                 goto err_disable;
 346         }
 347
 348         return 0;
 349
 350 err_disable:
 351         mthca_SYS_DIS(mdev, &status);
 352
 353         return err;
 354 }
 355
 356 static int mthca_load_fw(struct mthca_dev *mdev)
 357 {
 358         u8 status;
 359         int err;
 360
 361         /* FIXME: use HCA-attached memory for FW if present */
 362
 363         mdev->fw.arbel.fw_icm =
 364                 mthca_alloc_icm(mdev, mdev->fw.arbel.fw_pages,
 365                                 GFP_HIGHUSER | __GFP_NOWARN, 0);
 366         if (!mdev->fw.arbel.fw_icm) {
 367                 mthca_err(mdev, "Couldn't allocate FW area, aborting.\n");
 368                 return -ENOMEM;
 369         }
 370
 371         err = mthca_MAP_FA(mdev, mdev->fw.arbel.fw_icm, &status);
 372         if (err) {
 373                 mthca_err(mdev, "MAP_FA command failed, aborting.\n");
 374                 goto err_free;
 375         }
 376         if (status) {
 377                 mthca_err(mdev, "MAP_FA returned status 0x%02x, aborting.\n", status);
 378                 err = -EINVAL;
 379                 goto err_free;
 380         }
 381         err = mthca_RUN_FW(mdev, &status);
 382         if (err) {
 383                 mthca_err(mdev, "RUN_FW command failed, aborting.\n");
 384                 goto err_unmap_fa;
 385         }
 386         if (status) {
 387                 mthca_err(mdev, "RUN_FW returned status 0x%02x, aborting.\n", status);
 388                 err = -EINVAL;
 389                 goto err_unmap_fa;
 390         }
 391
 392         return 0;
 393
 394 err_unmap_fa:
 395         mthca_UNMAP_FA(mdev, &status);
 396
 397 err_free:
 398         mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
 399         return err;
 400 }
 401
 402 static int mthca_init_icm(struct mthca_dev *mdev,
 403                           struct mthca_dev_lim *dev_lim,
 404                           struct mthca_init_hca_param *init_hca,
 405                           u64 icm_size)
 406 {
 407         u64 aux_pages;
 408         u8 status;
 409         int err;
 410
 411         err = mthca_SET_ICM_SIZE(mdev, icm_size, &aux_pages, &status);
 412         if (err) {
 413                 mthca_err(mdev, "SET_ICM_SIZE command failed, aborting.\n");
 414                 return err;
 415         }
 416         if (status) {
 417                 mthca_err(mdev, "SET_ICM_SIZE returned status 0x%02x, "
 418                           "aborting.\n", status);
 419                 return -EINVAL;
 420         }
 421
 422         mthca_dbg(mdev, "%lld KB of HCA context requires %lld KB aux memory.\n",
 423                   (unsigned long long) icm_size >> 10,
 424                   (unsigned long long) aux_pages << 2);
 425
 426         mdev->fw.arbel.aux_icm = mthca_alloc_icm(mdev, aux_pages,
 427                                                  GFP_HIGHUSER | __GFP_NOWARN, 0);
 428         if (!mdev->fw.arbel.aux_icm) {
 429                 mthca_err(mdev, "Couldn't allocate aux memory, aborting.\n");
 430                 return -ENOMEM;
 431         }
 432
 433         err = mthca_MAP_ICM_AUX(mdev, mdev->fw.arbel.aux_icm, &status);
 434         if (err) {
 435                 mthca_err(mdev, "MAP_ICM_AUX command failed, aborting.\n");
 436                 goto err_free_aux;
 437         }
 438         if (status) {
 439                 mthca_err(mdev, "MAP_ICM_AUX returned status 0x%02x, aborting.\n", status);
 440                 err = -EINVAL;
 441                 goto err_free_aux;
 442         }
 443
 444         err = mthca_map_eq_icm(mdev, init_hca->eqc_base);
 445         if (err) {
 446                 mthca_err(mdev, "Failed to map EQ context memory, aborting.\n");
 447                 goto err_unmap_aux;
 448         }
 449
 450         /* CPU writes to non-reserved MTTs, while HCA might DMA to reserved mtts */
 451         mdev->limits.reserved_mtts = ALIGN(mdev->limits.reserved_mtts * MTHCA_MTT_SEG_SIZE,
 452                                            dma_get_cache_alignment()) / MTHCA_MTT_SEG_SIZE;
 453
 454         mdev->mr_table.mtt_table = mthca_alloc_icm_table(mdev, init_hca->mtt_base,
 455                                                          MTHCA_MTT_SEG_SIZE,
 456                                                          mdev->limits.num_mtt_segs,
 457                                                          mdev->limits.reserved_mtts,
 458                                                          1, 0);
 459         if (!mdev->mr_table.mtt_table) {
 460                 mthca_err(mdev, "Failed to map MTT context memory, aborting.\n");
 461                 err = -ENOMEM;
 462                 goto err_unmap_eq;
 463         }
 464
 465         mdev->mr_table.mpt_table = mthca_alloc_icm_table(mdev, init_hca->mpt_base,
 466                                                          dev_lim->mpt_entry_sz,
 467                                                          mdev->limits.num_mpts,
 468                                                          mdev->limits.reserved_mrws,
 469                                                          1, 1);
 470         if (!mdev->mr_table.mpt_table) {
 471                 mthca_err(mdev, "Failed to map MPT context memory, aborting.\n");
 472                 err = -ENOMEM;
 473                 goto err_unmap_mtt;
 474         }
 475
 476         mdev->qp_table.qp_table = mthca_alloc_icm_table(mdev, init_hca->qpc_base,
 477                                                         dev_lim->qpc_entry_sz,
 478                                                         mdev->limits.num_qps,
 479                                                         mdev->limits.reserved_qps,
 480                                                         0, 0);
 481         if (!mdev->qp_table.qp_table) {
 482                 mthca_err(mdev, "Failed to map QP context memory, aborting.\n");
 483                 err = -ENOMEM;
 484                 goto err_unmap_mpt;
 485         }
 486
 487         mdev->qp_table.eqp_table = mthca_alloc_icm_table(mdev, init_hca->eqpc_base,
 488                                                          dev_lim->eqpc_entry_sz,
 489                                                          mdev->limits.num_qps,
 490                                                          mdev->limits.reserved_qps,
 491                                                          0, 0);
 492         if (!mdev->qp_table.eqp_table) {
 493                 mthca_err(mdev, "Failed to map EQP context memory, aborting.\n");
 494                 err = -ENOMEM;
 495                 goto err_unmap_qp;
 496         }
 497
 498         mdev->qp_table.rdb_table = mthca_alloc_icm_table(mdev, init_hca->rdb_base,
 499                                                          MTHCA_RDB_ENTRY_SIZE,
 500                                                          mdev->limits.num_qps <<
 501                                                          mdev->qp_table.rdb_shift, 0,
 502                                                          0, 0);
 503         if (!mdev->qp_table.rdb_table) {
 504                 mthca_err(mdev, "Failed to map RDB context memory, aborting\n");
 505                 err = -ENOMEM;
 506                 goto err_unmap_eqp;
 507         }
 508
 509        mdev->cq_table.table = mthca_alloc_icm_table(mdev, init_hca->cqc_base,
 510                                                     dev_lim->cqc_entry_sz,
 511                                                     mdev->limits.num_cqs,
 512                                                     mdev->limits.reserved_cqs,
 513                                                     0, 0);
 514         if (!mdev->cq_table.table) {
 515                 mthca_err(mdev, "Failed to map CQ context memory, aborting.\n");
 516                 err = -ENOMEM;
 517                 goto err_unmap_rdb;
 518         }
 519
 520         if (mdev->mthca_flags & MTHCA_FLAG_SRQ) {
 521                 mdev->srq_table.table =
 522                         mthca_alloc_icm_table(mdev, init_hca->srqc_base,
 523                                               dev_lim->srq_entry_sz,
 524                                               mdev->limits.num_srqs,
 525                                               mdev->limits.reserved_srqs,
 526                                               0, 0);
 527                 if (!mdev->srq_table.table) {
 528                         mthca_err(mdev, "Failed to map SRQ context memory, "
 529                                   "aborting.\n");
 530                         err = -ENOMEM;
 531                         goto err_unmap_cq;
 532                 }
 533         }
 534
 535         /*
 536          * It's not strictly required, but for simplicity just map the
 537          * whole multicast group table now.  The table isn't very big
 538          * and it's a lot easier than trying to track ref counts.
 539          */
 540         mdev->mcg_table.table = mthca_alloc_icm_table(mdev, init_hca->mc_base,
 541                                                       MTHCA_MGM_ENTRY_SIZE,
 542                                                       mdev->limits.num_mgms +
 543                                                       mdev->limits.num_amgms,
 544                                                       mdev->limits.num_mgms +
 545                                                       mdev->limits.num_amgms,
 546                                                       0, 0);
 547         if (!mdev->mcg_table.table) {
 548                 mthca_err(mdev, "Failed to map MCG context memory, aborting.\n");
 549                 err = -ENOMEM;
 550                 goto err_unmap_srq;
 551         }
 552
 553         return 0;
 554
 555 err_unmap_srq:
 556         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 557                 mthca_free_icm_table(mdev, mdev->srq_table.table);
 558
 559 err_unmap_cq:
 560         mthca_free_icm_table(mdev, mdev->cq_table.table);
 561
 562 err_unmap_rdb:
 563         mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
 564
 565 err_unmap_eqp:
 566         mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
 567
 568 err_unmap_qp:
 569         mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
 570
 571 err_unmap_mpt:
 572         mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
 573
 574 err_unmap_mtt:
 575         mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
 576
 577 err_unmap_eq:
 578         mthca_unmap_eq_icm(mdev);
 579
 580 err_unmap_aux:
 581         mthca_UNMAP_ICM_AUX(mdev, &status);
 582
 583 err_free_aux:
 584         mthca_free_icm(mdev, mdev->fw.arbel.aux_icm, 0);
 585
 586         return err;
 587 }
 588
 589 static void mthca_free_icms(struct mthca_dev *mdev)
 590 {
 591         u8 status;
 592
 593         mthca_free_icm_table(mdev, mdev->mcg_table.table);
 594         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 595                 mthca_free_icm_table(mdev, mdev->srq_table.table);
 596         mthca_free_icm_table(mdev, mdev->cq_table.table);
 597         mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
 598         mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
 599         mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
 600         mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
 601         mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
 602         mthca_unmap_eq_icm(mdev);
 603
 604         mthca_UNMAP_ICM_AUX(mdev, &status);
 605         mthca_free_icm(mdev, mdev->fw.arbel.aux_icm, 0);
 606 }
 607
 608 static int mthca_init_arbel(struct mthca_dev *mdev)
 609 {
 610         struct mthca_dev_lim        dev_lim;
 611         struct mthca_profile        profile;
 612         struct mthca_init_hca_param init_hca;
 613         u64 icm_size;
 614         u8 status;
 615         int err;
 616
 617         err = mthca_QUERY_FW(mdev, &status);
 618         if (err) {
 619                 mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
 620                 return err;
 621         }
 622         if (status) {
 623                 mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
 624                           "aborting.\n", status);
 625                 return -EINVAL;
 626         }
 627
 628         err = mthca_ENABLE_LAM(mdev, &status);
 629         if (err) {
 630                 mthca_err(mdev, "ENABLE_LAM command failed, aborting.\n");
 631                 return err;
 632         }
 633         if (status == MTHCA_CMD_STAT_LAM_NOT_PRE) {
 634                 mthca_dbg(mdev, "No HCA-attached memory (running in MemFree mode)\n");
 635                 mdev->mthca_flags |= MTHCA_FLAG_NO_LAM;
 636         } else if (status) {
 637                 mthca_err(mdev, "ENABLE_LAM returned status 0x%02x, "
 638                           "aborting.\n", status);
 639                 return -EINVAL;
 640         }
 641
 642         err = mthca_load_fw(mdev);
 643         if (err) {
 644                 mthca_err(mdev, "Failed to start FW, aborting.\n");
 645                 goto err_disable;
 646         }
 647
 648         err = mthca_dev_lim(mdev, &dev_lim);
 649         if (err) {
 650                 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
 651                 goto err_stop_fw;
 652         }
 653
 654         profile = hca_profile;
 655         profile.num_uar  = dev_lim.uar_size / PAGE_SIZE;
 656         profile.num_udav = 0;
 657         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 658                 profile.num_srq = dev_lim.max_srqs;
 659
 660         icm_size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
 661         if ((int) icm_size < 0) {
 662                 err = icm_size;
 663                 goto err_stop_fw;
 664         }
 665
 666         err = mthca_init_icm(mdev, &dev_lim, &init_hca, icm_size);
 667         if (err)
 668                 goto err_stop_fw;
 669
 670         err = mthca_INIT_HCA(mdev, &init_hca, &status);
 671         if (err) {
 672                 mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
 673                 goto err_free_icm;
 674         }
 675         if (status) {
 676                 mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
 677                           "aborting.\n", status);
 678                 err = -EINVAL;
 679                 goto err_free_icm;
 680         }
 681
 682         return 0;
 683
 684 err_free_icm:
 685         mthca_free_icms(mdev);
 686
 687 err_stop_fw:
 688         mthca_UNMAP_FA(mdev, &status);
 689         mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
 690
 691 err_disable:
 692         if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
 693                 mthca_DISABLE_LAM(mdev, &status);
 694
 695         return err;
 696 }
 697
 698 static void mthca_close_hca(struct mthca_dev *mdev)
 699 {
 700         u8 status;
 701
 702         mthca_CLOSE_HCA(mdev, 0, &status);
 703
 704         if (mthca_is_memfree(mdev)) {
 705                 mthca_free_icms(mdev);
 706
 707                 mthca_UNMAP_FA(mdev, &status);
 708                 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
 709
 710                 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
 711                         mthca_DISABLE_LAM(mdev, &status);
 712         } else
 713                 mthca_SYS_DIS(mdev, &status);
 714 }
 715
 716 static int mthca_init_hca(struct mthca_dev *mdev)
 717 {
 718         u8 status;
 719         int err;
 720         struct mthca_adapter adapter;
 721
 722         if (mthca_is_memfree(mdev))
 723                 err = mthca_init_arbel(mdev);
 724         else
 725                 err = mthca_init_tavor(mdev);
 726
 727         if (err)
 728                 return err;
 729
 730         err = mthca_QUERY_ADAPTER(mdev, &adapter, &status);
 731         if (err) {
 732                 mthca_err(mdev, "QUERY_ADAPTER command failed, aborting.\n");
 733                 goto err_close;
 734         }
 735         if (status) {
 736                 mthca_err(mdev, "QUERY_ADAPTER returned status 0x%02x, "
 737                           "aborting.\n", status);
 738                 err = -EINVAL;
 739                 goto err_close;
 740         }
 741
 742         mdev->eq_table.inta_pin = adapter.inta_pin;
 743         mdev->rev_id            = adapter.revision_id;
 744         memcpy(mdev->board_id, adapter.board_id, sizeof mdev->board_id);
 745
 746         return 0;
 747
 748 err_close:
 749         mthca_close_hca(mdev);
 750         return err;
 751 }
 752
 753 static int mthca_setup_hca(struct mthca_dev *dev)
 754 {
 755         int err;
 756         u8 status;
 757
 758         MTHCA_INIT_DOORBELL_LOCK(&dev->doorbell_lock);
 759
 760         err = mthca_init_uar_table(dev);
 761         if (err) {
 762                 mthca_err(dev, "Failed to initialize "
 763                           "user access region table, aborting.\n");
 764                 return err;
 765         }
 766
 767         err = mthca_uar_alloc(dev, &dev->driver_uar);
 768         if (err) {
 769                 mthca_err(dev, "Failed to allocate driver access region, "
 770                           "aborting.\n");
 771                 goto err_uar_table_free;
 772         }
 773
 774         dev->kar = ioremap(dev->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
 775         if (!dev->kar) {
 776                 mthca_err(dev, "Couldn't map kernel access region, "
 777                           "aborting.\n");
 778                 err = -ENOMEM;
 779                 goto err_uar_free;
 780         }
 781
 782         err = mthca_init_pd_table(dev);
 783         if (err) {
 784                 mthca_err(dev, "Failed to initialize "
 785                           "protection domain table, aborting.\n");
 786                 goto err_kar_unmap;
 787         }
 788
 789         err = mthca_init_mr_table(dev);
 790         if (err) {
 791                 mthca_err(dev, "Failed to initialize "
 792                           "memory region table, aborting.\n");
 793                 goto err_pd_table_free;
 794         }
 795
 796         err = mthca_pd_alloc(dev, 1, &dev->driver_pd);
 797         if (err) {
 798                 mthca_err(dev, "Failed to create driver PD, "
 799                           "aborting.\n");
 800                 goto err_mr_table_free;
 801         }
 802
 803         err = mthca_init_eq_table(dev);
 804         if (err) {
 805                 mthca_err(dev, "Failed to initialize "
 806                           "event queue table, aborting.\n");
 807                 goto err_pd_free;
 808         }
 809
 810         err = mthca_cmd_use_events(dev);
 811         if (err) {
 812                 mthca_err(dev, "Failed to switch to event-driven "
 813                           "firmware commands, aborting.\n");
 814                 goto err_eq_table_free;
 815         }
 816
 817         err = mthca_NOP(dev, &status);
 818         if (err || status) {
 819                 if (dev->mthca_flags & (MTHCA_FLAG_MSI | MTHCA_FLAG_MSI_X)) {
 820                         mthca_warn(dev, "NOP command failed to generate interrupt "
 821                                    "(IRQ %d).\n",
 822                                    dev->mthca_flags & MTHCA_FLAG_MSI_X ?
 823                                    dev->eq_table.eq[MTHCA_EQ_CMD].msi_x_vector :
 824                                    dev->pdev->irq);
 825                         mthca_warn(dev, "Trying again with MSI/MSI-X disabled.\n");
 826                 } else {
 827                         mthca_err(dev, "NOP command failed to generate interrupt "
 828                                   "(IRQ %d), aborting.\n",
 829                                   dev->pdev->irq);
 830                         mthca_err(dev, "BIOS or ACPI interrupt routing problem?\n");
 831                 }
 832
 833                 goto err_cmd_poll;
 834         }
 835
 836         mthca_dbg(dev, "NOP command IRQ test passed\n");
 837
 838         err = mthca_init_cq_table(dev);
 839         if (err) {
 840                 mthca_err(dev, "Failed to initialize "
 841                           "completion queue table, aborting.\n");
 842                 goto err_cmd_poll;
 843         }
 844
 845         err = mthca_init_srq_table(dev);
 846         if (err) {
 847                 mthca_err(dev, "Failed to initialize "
 848                           "shared receive queue table, aborting.\n");
 849                 goto err_cq_table_free;
 850         }
 851
 852         err = mthca_init_qp_table(dev);
 853         if (err) {
 854                 mthca_err(dev, "Failed to initialize "
 855                           "queue pair table, aborting.\n");
 856                 goto err_srq_table_free;
 857         }
 858
 859         err = mthca_init_av_table(dev);
 860         if (err) {
 861                 mthca_err(dev, "Failed to initialize "
 862                           "address vector table, aborting.\n");
 863                 goto err_qp_table_free;
 864         }
 865
 866         err = mthca_init_mcg_table(dev);
 867         if (err) {
 868                 mthca_err(dev, "Failed to initialize "
 869                           "multicast group table, aborting.\n");
 870                 goto err_av_table_free;
 871         }
 872
 873         return 0;
 874
 875 err_av_table_free:
 876         mthca_cleanup_av_table(dev);
 877
 878 err_qp_table_free:
 879         mthca_cleanup_qp_table(dev);
 880
 881 err_srq_table_free:
 882         mthca_cleanup_srq_table(dev);
 883
 884 err_cq_table_free:
 885         mthca_cleanup_cq_table(dev);
 886
 887 err_cmd_poll:
 888         mthca_cmd_use_polling(dev);
 889
 890 err_eq_table_free:
 891         mthca_cleanup_eq_table(dev);
 892
 893 err_pd_free:
 894         mthca_pd_free(dev, &dev->driver_pd);
 895
 896 err_mr_table_free:
 897         mthca_cleanup_mr_table(dev);
 898
 899 err_pd_table_free:
 900         mthca_cleanup_pd_table(dev);
 901
 902 err_kar_unmap:
 903         iounmap(dev->kar);
 904
 905 err_uar_free:
 906         mthca_uar_free(dev, &dev->driver_uar);
 907
 908 err_uar_table_free:
 909         mthca_cleanup_uar_table(dev);
 910         return err;
 911 }
 912
 913 static int mthca_request_regions(struct pci_dev *pdev, int ddr_hidden)
 914 {
 915         int err;
 916
 917         /*
 918          * We can't just use pci_request_regions() because the MSI-X
 919          * table is right in the middle of the first BAR.  If we did
 920          * pci_request_region and grab all of the first BAR, then
 921          * setting up MSI-X would fail, since the PCI core wants to do
 922          * request_mem_region on the MSI-X vector table.
 923          *
 924          * So just request what we need right now, and request any
 925          * other regions we need when setting up EQs.
 926          */
 927         if (!request_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
 928                                 MTHCA_HCR_SIZE, DRV_NAME))
 929                 return -EBUSY;
 930
 931         err = pci_request_region(pdev, 2, DRV_NAME);
 932         if (err)
 933                 goto err_bar2_failed;
 934
 935         if (!ddr_hidden) {
 936                 err = pci_request_region(pdev, 4, DRV_NAME);
 937                 if (err)
 938                         goto err_bar4_failed;
 939         }
 940
 941         return 0;
 942
 943 err_bar4_failed:
 944         pci_release_region(pdev, 2);
 945
 946 err_bar2_failed:
 947         release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
 948                            MTHCA_HCR_SIZE);
 949
 950         return err;
 951 }
 952
 953 static void mthca_release_regions(struct pci_dev *pdev,
 954                                   int ddr_hidden)
 955 {
 956         if (!ddr_hidden)
 957                 pci_release_region(pdev, 4);
 958
 959         pci_release_region(pdev, 2);
 960
 961         release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
 962                            MTHCA_HCR_SIZE);
 963 }
 964
 965 static int mthca_enable_msi_x(struct mthca_dev *mdev)
 966 {
 967         struct msix_entry entries[3];
 968         int err;
 969
 970         entries[0].entry = 0;
 971         entries[1].entry = 1;
 972         entries[2].entry = 2;
 973
 974         err = pci_enable_msix(mdev->pdev, entries, ARRAY_SIZE(entries));
 975         if (err) {
 976                 if (err > 0)
 977                         mthca_info(mdev, "Only %d MSI-X vectors available, "
 978                                    "not using MSI-X\n", err);
 979                 return err;
 980         }
 981
 982         mdev->eq_table.eq[MTHCA_EQ_COMP ].msi_x_vector = entries[0].vector;
 983         mdev->eq_table.eq[MTHCA_EQ_ASYNC].msi_x_vector = entries[1].vector;
 984         mdev->eq_table.eq[MTHCA_EQ_CMD  ].msi_x_vector = entries[2].vector;
 985
 986         return 0;
 987 }
 988
 989 /* Types of supported HCA */
 990 enum {
 991         TAVOR,                  /* MT23108                        */
 992         ARBEL_COMPAT,           /* MT25208 in Tavor compat mode   */
 993         ARBEL_NATIVE,           /* MT25208 with extended features */
 994         SINAI                   /* MT25204 */
 995 };
 996
 997 #define MTHCA_FW_VER(major, minor, subminor) \
 998         (((u64) (major) << 32) | ((u64) (minor) << 16) | (u64) (subminor))
 999
1000 static struct {
1001         u64 latest_fw;
1002         u32 flags;
1003 } mthca_hca_table[] = {
1004         [TAVOR]        = { .latest_fw = MTHCA_FW_VER(3, 5, 0),
1005                            .flags     = 0 },
1006         [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 8, 200),
1007                            .flags     = MTHCA_FLAG_PCIE },
1008         [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 2, 0),
1009                            .flags     = MTHCA_FLAG_MEMFREE |
1010                                         MTHCA_FLAG_PCIE },
1011         [SINAI]        = { .latest_fw = MTHCA_FW_VER(1, 2, 0),
1012                            .flags     = MTHCA_FLAG_MEMFREE |
1013                                         MTHCA_FLAG_PCIE    |
1014                                         MTHCA_FLAG_SINAI_OPT }
1015 };
1016
1017 static int __mthca_init_one(struct pci_dev *pdev, int hca_type)
1018 {
1019         int ddr_hidden = 0;
1020         int err;
1021         struct mthca_dev *mdev;
1022
1023         printk(KERN_INFO PFX "Initializing %s\n",
1024                pci_name(pdev));
1025
1026         err = pci_enable_device(pdev);
1027         if (err) {
1028                 dev_err(&pdev->dev, "Cannot enable PCI device, "
1029                         "aborting.\n");
1030                 return err;
1031         }
1032
1033         /*
1034          * Check for BARs.  We expect 0: 1MB, 2: 8MB, 4: DDR (may not
1035          * be present)
1036          */
1037         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) ||
1038             pci_resource_len(pdev, 0) != 1 << 20) {
1039                 dev_err(&pdev->dev, "Missing DCS, aborting.\n");
1040                 err = -ENODEV;
1041                 goto err_disable_pdev;
1042         }
1043         if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
1044                 dev_err(&pdev->dev, "Missing UAR, aborting.\n");
1045                 err = -ENODEV;
1046                 goto err_disable_pdev;
1047         }
1048         if (!(pci_resource_flags(pdev, 4) & IORESOURCE_MEM))
1049                 ddr_hidden = 1;
1050
1051         err = mthca_request_regions(pdev, ddr_hidden);
1052         if (err) {
1053                 dev_err(&pdev->dev, "Cannot obtain PCI resources, "
1054                         "aborting.\n");
1055                 goto err_disable_pdev;
1056         }
1057
1058         pci_set_master(pdev);
1059
1060         err = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
1061         if (err) {
1062                 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n");
1063                 err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
1064                 if (err) {
1065                         dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n");
1066                         goto err_free_res;
1067                 }
1068         }
1069         err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
1070         if (err) {
1071                 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit "
1072                          "consistent PCI DMA mask.\n");
1073                 err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
1074                 if (err) {
1075                         dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
1076                                 "aborting.\n");
1077                         goto err_free_res;
1078                 }
1079         }
1080
1081         mdev = (struct mthca_dev *) ib_alloc_device(sizeof *mdev);
1082         if (!mdev) {
1083                 dev_err(&pdev->dev, "Device struct alloc failed, "
1084                         "aborting.\n");
1085                 err = -ENOMEM;
1086                 goto err_free_res;
1087         }
1088
1089         mdev->pdev = pdev;
1090
1091         mdev->mthca_flags = mthca_hca_table[hca_type].flags;
1092         if (ddr_hidden)
1093                 mdev->mthca_flags |= MTHCA_FLAG_DDR_HIDDEN;
1094
1095         /*
1096          * Now reset the HCA before we touch the PCI capabilities or
1097          * attempt a firmware command, since a boot ROM may have left
1098          * the HCA in an undefined state.
1099          */
1100         err = mthca_reset(mdev);
1101         if (err) {
1102                 mthca_err(mdev, "Failed to reset HCA, aborting.\n");
1103                 goto err_free_dev;
1104         }
1105
1106         if (mthca_cmd_init(mdev)) {
1107                 mthca_err(mdev, "Failed to init command interface, aborting.\n");
1108                 goto err_free_dev;
1109         }
1110
1111         err = mthca_tune_pci(mdev);
1112         if (err)
1113                 goto err_cmd;
1114
1115         err = mthca_init_hca(mdev);
1116         if (err)
1117                 goto err_cmd;
1118
1119         if (mdev->fw_ver < mthca_hca_table[hca_type].latest_fw) {
1120                 mthca_warn(mdev, "HCA FW version %d.%d.%03d is old (%d.%d.%03d is current).\n",
1121                            (int) (mdev->fw_ver >> 32), (int) (mdev->fw_ver >> 16) & 0xffff,
1122                            (int) (mdev->fw_ver & 0xffff),
1123                            (int) (mthca_hca_table[hca_type].latest_fw >> 32),
1124                            (int) (mthca_hca_table[hca_type].latest_fw >> 16) & 0xffff,
1125                            (int) (mthca_hca_table[hca_type].latest_fw & 0xffff));
1126                 mthca_warn(mdev, "If you have problems, try updating your HCA FW.\n");
1127         }
1128
1129         if (msi_x && !mthca_enable_msi_x(mdev))
1130                 mdev->mthca_flags |= MTHCA_FLAG_MSI_X;
1131         else if (msi) {
1132                 static int warned;
1133
1134                 if (!warned) {
1135                         printk(KERN_WARNING PFX "WARNING: MSI support will be "
1136                                "removed from the ib_mthca driver in January 2008.\n");
1137                         printk(KERN_WARNING "    If you are using MSI and cannot "
1138                                "switch to MSI-X, please tell "
1139                                "<general@lists.openfabrics.org>.\n");
1140                         ++warned;
1141                 }
1142
1143                 if (!pci_enable_msi(pdev))
1144                         mdev->mthca_flags |= MTHCA_FLAG_MSI;
1145         }
1146
1147         err = mthca_setup_hca(mdev);
1148         if (err == -EBUSY && (mdev->mthca_flags & (MTHCA_FLAG_MSI | MTHCA_FLAG_MSI_X))) {
1149                 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1150                         pci_disable_msix(pdev);
1151                 if (mdev->mthca_flags & MTHCA_FLAG_MSI)
1152                         pci_disable_msi(pdev);
1153                 mdev->mthca_flags &= ~(MTHCA_FLAG_MSI_X | MTHCA_FLAG_MSI);
1154
1155                 err = mthca_setup_hca(mdev);
1156         }
1157
1158         if (err)
1159                 goto err_close;
1160
1161         err = mthca_register_device(mdev);
1162         if (err)
1163                 goto err_cleanup;
1164
1165         err = mthca_create_agents(mdev);
1166         if (err)
1167                 goto err_unregister;
1168
1169         pci_set_drvdata(pdev, mdev);
1170         mdev->hca_type = hca_type;
1171
1172         return 0;
1173
1174 err_unregister:
1175         mthca_unregister_device(mdev);
1176
1177 err_cleanup:
1178         mthca_cleanup_mcg_table(mdev);
1179         mthca_cleanup_av_table(mdev);
1180         mthca_cleanup_qp_table(mdev);
1181         mthca_cleanup_srq_table(mdev);
1182         mthca_cleanup_cq_table(mdev);
1183         mthca_cmd_use_polling(mdev);
1184         mthca_cleanup_eq_table(mdev);
1185
1186         mthca_pd_free(mdev, &mdev->driver_pd);
1187
1188         mthca_cleanup_mr_table(mdev);
1189         mthca_cleanup_pd_table(mdev);
1190         mthca_cleanup_uar_table(mdev);
1191
1192 err_close:
1193         if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1194                 pci_disable_msix(pdev);
1195         if (mdev->mthca_flags & MTHCA_FLAG_MSI)
1196                 pci_disable_msi(pdev);
1197
1198         mthca_close_hca(mdev);
1199
1200 err_cmd:
1201         mthca_cmd_cleanup(mdev);
1202
1203 err_free_dev:
1204         ib_dealloc_device(&mdev->ib_dev);
1205
1206 err_free_res:
1207         mthca_release_regions(pdev, ddr_hidden);
1208
1209 err_disable_pdev:
1210         pci_disable_device(pdev);
1211         pci_set_drvdata(pdev, NULL);
1212         return err;
1213 }
1214
1215 static void __mthca_remove_one(struct pci_dev *pdev)
1216 {
1217         struct mthca_dev *mdev = pci_get_drvdata(pdev);
1218         u8 status;
1219         int p;
1220
1221         if (mdev) {
1222                 mthca_free_agents(mdev);
1223                 mthca_unregister_device(mdev);
1224
1225                 for (p = 1; p <= mdev->limits.num_ports; ++p)
1226                         mthca_CLOSE_IB(mdev, p, &status);
1227
1228                 mthca_cleanup_mcg_table(mdev);
1229                 mthca_cleanup_av_table(mdev);
1230                 mthca_cleanup_qp_table(mdev);
1231                 mthca_cleanup_srq_table(mdev);
1232                 mthca_cleanup_cq_table(mdev);
1233                 mthca_cmd_use_polling(mdev);
1234                 mthca_cleanup_eq_table(mdev);
1235
1236                 mthca_pd_free(mdev, &mdev->driver_pd);
1237
1238                 mthca_cleanup_mr_table(mdev);
1239                 mthca_cleanup_pd_table(mdev);
1240
1241                 iounmap(mdev->kar);
1242                 mthca_uar_free(mdev, &mdev->driver_uar);
1243                 mthca_cleanup_uar_table(mdev);
1244                 mthca_close_hca(mdev);
1245                 mthca_cmd_cleanup(mdev);
1246
1247                 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1248                         pci_disable_msix(pdev);
1249                 if (mdev->mthca_flags & MTHCA_FLAG_MSI)
1250                         pci_disable_msi(pdev);
1251
1252                 ib_dealloc_device(&mdev->ib_dev);
1253                 mthca_release_regions(pdev, mdev->mthca_flags &
1254                                       MTHCA_FLAG_DDR_HIDDEN);
1255                 pci_disable_device(pdev);
1256                 pci_set_drvdata(pdev, NULL);
1257         }
1258 }
1259
1260 int __mthca_restart_one(struct pci_dev *pdev)
1261 {
1262         struct mthca_dev *mdev;
1263         int hca_type;
1264
1265         mdev = pci_get_drvdata(pdev);
1266         if (!mdev)
1267                 return -ENODEV;
1268         hca_type = mdev->hca_type;
1269         __mthca_remove_one(pdev);
1270         return __mthca_init_one(pdev, hca_type);
1271 }
1272
1273 static int __devinit mthca_init_one(struct pci_dev *pdev,
1274                                     const struct pci_device_id *id)
1275 {
1276         static int mthca_version_printed = 0;
1277         int ret;
1278
1279         mutex_lock(&mthca_device_mutex);
1280
1281         if (!mthca_version_printed) {
1282                 printk(KERN_INFO "%s", mthca_version);
1283                 ++mthca_version_printed;
1284         }
1285
1286         if (id->driver_data >= ARRAY_SIZE(mthca_hca_table)) {
1287                 printk(KERN_ERR PFX "%s has invalid driver data %lx\n",
1288                        pci_name(pdev), id->driver_data);
1289                 mutex_unlock(&mthca_device_mutex);
1290                 return -ENODEV;
1291         }
1292
1293         ret = __mthca_init_one(pdev, id->driver_data);
1294
1295         mutex_unlock(&mthca_device_mutex);
1296
1297         return ret;
1298 }
1299
1300 static void __devexit mthca_remove_one(struct pci_dev *pdev)
1301 {
1302         mutex_lock(&mthca_device_mutex);
1303         __mthca_remove_one(pdev);
1304         mutex_unlock(&mthca_device_mutex);
1305 }
1306
1307 static struct pci_device_id mthca_pci_table[] = {
1308         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR),
1309           .driver_data = TAVOR },
1310         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_TAVOR),
1311           .driver_data = TAVOR },
1312         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1313           .driver_data = ARBEL_COMPAT },
1314         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1315           .driver_data = ARBEL_COMPAT },
1316         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL),
1317           .driver_data = ARBEL_NATIVE },
1318         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL),
1319           .driver_data = ARBEL_NATIVE },
1320         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI),
1321           .driver_data = SINAI },
1322         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI),
1323           .driver_data = SINAI },
1324         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1325           .driver_data = SINAI },
1326         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1327           .driver_data = SINAI },
1328         { 0, }
1329 };
1330
1331 MODULE_DEVICE_TABLE(pci, mthca_pci_table);
1332
1333 static struct pci_driver mthca_driver = {
1334         .name           = DRV_NAME,
1335         .id_table       = mthca_pci_table,
1336         .probe          = mthca_init_one,
1337         .remove         = __devexit_p(mthca_remove_one)
1338 };
1339
1340 static void __init __mthca_check_profile_val(const char *name, int *pval,
1341                                              int pval_default)
1342 {
1343         /* value must be positive and power of 2 */
1344         int old_pval = *pval;
1345
1346         if (old_pval <= 0)
1347                 *pval = pval_default;
1348         else
1349                 *pval = roundup_pow_of_two(old_pval);
1350
1351         if (old_pval != *pval) {
1352                 printk(KERN_WARNING PFX "Invalid value %d for %s in module parameter.\n",
1353                        old_pval, name);
1354                 printk(KERN_WARNING PFX "Corrected %s to %d.\n", name, *pval);
1355         }
1356 }
1357
1358 #define mthca_check_profile_val(name, default)                          \
1359         __mthca_check_profile_val(#name, &hca_profile.name, default)
1360
1361 static void __init mthca_validate_profile(void)
1362 {
1363         mthca_check_profile_val(num_qp,            MTHCA_DEFAULT_NUM_QP);
1364         mthca_check_profile_val(rdb_per_qp,        MTHCA_DEFAULT_RDB_PER_QP);
1365         mthca_check_profile_val(num_cq,            MTHCA_DEFAULT_NUM_CQ);
1366         mthca_check_profile_val(num_mcg,           MTHCA_DEFAULT_NUM_MCG);
1367         mthca_check_profile_val(num_mpt,           MTHCA_DEFAULT_NUM_MPT);
1368         mthca_check_profile_val(num_mtt,           MTHCA_DEFAULT_NUM_MTT);
1369         mthca_check_profile_val(num_udav,          MTHCA_DEFAULT_NUM_UDAV);
1370         mthca_check_profile_val(fmr_reserved_mtts, MTHCA_DEFAULT_NUM_RESERVED_MTTS);
1371
1372         if (hca_profile.fmr_reserved_mtts >= hca_profile.num_mtt) {
1373                 printk(KERN_WARNING PFX "Invalid fmr_reserved_mtts module parameter %d.\n",
1374                        hca_profile.fmr_reserved_mtts);
1375                 printk(KERN_WARNING PFX "(Must be smaller than num_mtt %d)\n",
1376                        hca_profile.num_mtt);
1377                 hca_profile.fmr_reserved_mtts = hca_profile.num_mtt / 2;
1378                 printk(KERN_WARNING PFX "Corrected fmr_reserved_mtts to %d.\n",
1379                        hca_profile.fmr_reserved_mtts);
1380         }
1381 }
1382
1383 static int __init mthca_init(void)
1384 {
1385         int ret;
1386
1387         mthca_validate_profile();
1388
1389         ret = mthca_catas_init();
1390         if (ret)
1391                 return ret;
1392
1393         ret = pci_register_driver(&mthca_driver);
1394         if (ret < 0) {
1395                 mthca_catas_cleanup();
1396                 return ret;
1397         }
1398
1399         return 0;
1400 }
1401
1402 static void __exit mthca_cleanup(void)
1403 {
1404         pci_unregister_driver(&mthca_driver);
1405         mthca_catas_cleanup();
1406 }
1407
1408 module_init(mthca_init);
1409 module_exit(mthca_cleanup);