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
  35 #include <linux/module.h>
  36 #include <linux/init.h>
  37 #include <linux/errno.h>
  38 #include <linux/pci.h>
  39 #include <linux/interrupt.h>
  40 #include <linux/gfp.h>
  41
  42 #include "mthca_dev.h"
  43 #include "mthca_config_reg.h"
  44 #include "mthca_cmd.h"
  45 #include "mthca_profile.h"
  46 #include "mthca_memfree.h"
  47 #include "mthca_wqe.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 #else /* CONFIG_PCI_MSI */
  69
  70 #define msi_x (0)
  71
  72 #endif /* CONFIG_PCI_MSI */
  73
  74 static int tune_pci = 0;
  75 module_param(tune_pci, int, 0444);
  76 MODULE_PARM_DESC(tune_pci, "increase PCI burst from the default set by BIOS if nonzero");
  77
  78 DEFINE_MUTEX(mthca_device_mutex);
  79
  80 #define MTHCA_DEFAULT_NUM_QP            (1 << 16)
  81 #define MTHCA_DEFAULT_RDB_PER_QP        (1 << 2)
  82 #define MTHCA_DEFAULT_NUM_CQ            (1 << 16)
  83 #define MTHCA_DEFAULT_NUM_MCG           (1 << 13)
  84 #define MTHCA_DEFAULT_NUM_MPT           (1 << 17)
  85 #define MTHCA_DEFAULT_NUM_MTT           (1 << 20)
  86 #define MTHCA_DEFAULT_NUM_UDAV          (1 << 15)
  87 #define MTHCA_DEFAULT_NUM_RESERVED_MTTS (1 << 18)
  88 #define MTHCA_DEFAULT_NUM_UARC_SIZE     (1 << 18)
  89
  90 static struct mthca_profile hca_profile = {
  91         .num_qp             = MTHCA_DEFAULT_NUM_QP,
  92         .rdb_per_qp         = MTHCA_DEFAULT_RDB_PER_QP,
  93         .num_cq             = MTHCA_DEFAULT_NUM_CQ,
  94         .num_mcg            = MTHCA_DEFAULT_NUM_MCG,
  95         .num_mpt            = MTHCA_DEFAULT_NUM_MPT,
  96         .num_mtt            = MTHCA_DEFAULT_NUM_MTT,
  97         .num_udav           = MTHCA_DEFAULT_NUM_UDAV,          /* Tavor only */
  98         .fmr_reserved_mtts  = MTHCA_DEFAULT_NUM_RESERVED_MTTS, /* Tavor only */
  99         .uarc_size          = MTHCA_DEFAULT_NUM_UARC_SIZE,     /* Arbel only */
 100 };
 101
 102 module_param_named(num_qp, hca_profile.num_qp, int, 0444);
 103 MODULE_PARM_DESC(num_qp, "maximum number of QPs per HCA");
 104
 105 module_param_named(rdb_per_qp, hca_profile.rdb_per_qp, int, 0444);
 106 MODULE_PARM_DESC(rdb_per_qp, "number of RDB buffers per QP");
 107
 108 module_param_named(num_cq, hca_profile.num_cq, int, 0444);
 109 MODULE_PARM_DESC(num_cq, "maximum number of CQs per HCA");
 110
 111 module_param_named(num_mcg, hca_profile.num_mcg, int, 0444);
 112 MODULE_PARM_DESC(num_mcg, "maximum number of multicast groups per HCA");
 113
 114 module_param_named(num_mpt, hca_profile.num_mpt, int, 0444);
 115 MODULE_PARM_DESC(num_mpt,
 116                 "maximum number of memory protection table entries per HCA");
 117
 118 module_param_named(num_mtt, hca_profile.num_mtt, int, 0444);
 119 MODULE_PARM_DESC(num_mtt,
 120                  "maximum number of memory translation table segments per HCA");
 121
 122 module_param_named(num_udav, hca_profile.num_udav, int, 0444);
 123 MODULE_PARM_DESC(num_udav, "maximum number of UD address vectors per HCA");
 124
 125 module_param_named(fmr_reserved_mtts, hca_profile.fmr_reserved_mtts, int, 0444);
 126 MODULE_PARM_DESC(fmr_reserved_mtts,
 127                  "number of memory translation table segments reserved for FMR");
 128
 129 static int log_mtts_per_seg = ilog2(MTHCA_MTT_SEG_SIZE / 8);
 130 module_param_named(log_mtts_per_seg, log_mtts_per_seg, int, 0444);
 131 MODULE_PARM_DESC(log_mtts_per_seg, "Log2 number of MTT entries per segment (1-5)");
 132
 133 static char mthca_version[] __devinitdata =
 134         DRV_NAME ": Mellanox InfiniBand HCA driver v"
 135         DRV_VERSION " (" DRV_RELDATE ")\n";
 136
 137 static int mthca_tune_pci(struct mthca_dev *mdev)
 138 {
 139         if (!tune_pci)
 140                 return 0;
 141
 142         /* First try to max out Read Byte Count */
 143         if (pci_find_capability(mdev->pdev, PCI_CAP_ID_PCIX)) {
 144                 if (pcix_set_mmrbc(mdev->pdev, pcix_get_max_mmrbc(mdev->pdev))) {
 145                         mthca_err(mdev, "Couldn't set PCI-X max read count, "
 146                                 "aborting.\n");
 147                         return -ENODEV;
 148                 }
 149         } else if (!(mdev->mthca_flags & MTHCA_FLAG_PCIE))
 150                 mthca_info(mdev, "No PCI-X capability, not setting RBC.\n");
 151
 152         if (pci_is_pcie(mdev->pdev)) {
 153                 if (pcie_set_readrq(mdev->pdev, 4096)) {
 154                         mthca_err(mdev, "Couldn't write PCI Express read request, "
 155                                 "aborting.\n");
 156                         return -ENODEV;
 157                 }
 158         } else if (mdev->mthca_flags & MTHCA_FLAG_PCIE)
 159                 mthca_info(mdev, "No PCI Express capability, "
 160                            "not setting Max Read Request Size.\n");
 161
 162         return 0;
 163 }
 164
 165 static int mthca_dev_lim(struct mthca_dev *mdev, struct mthca_dev_lim *dev_lim)
 166 {
 167         int err;
 168
 169         mdev->limits.mtt_seg_size = (1 << log_mtts_per_seg) * 8;
 170         err = mthca_QUERY_DEV_LIM(mdev, dev_lim);
 171         if (err) {
 172                 mthca_err(mdev, "QUERY_DEV_LIM command returned %d"
 173                                 ", aborting.\n", err);
 174                 return err;
 175         }
 176         if (dev_lim->min_page_sz > PAGE_SIZE) {
 177                 mthca_err(mdev, "HCA minimum page size of %d bigger than "
 178                           "kernel PAGE_SIZE of %ld, aborting.\n",
 179                           dev_lim->min_page_sz, PAGE_SIZE);
 180                 return -ENODEV;
 181         }
 182         if (dev_lim->num_ports > MTHCA_MAX_PORTS) {
 183                 mthca_err(mdev, "HCA has %d ports, but we only support %d, "
 184                           "aborting.\n",
 185                           dev_lim->num_ports, MTHCA_MAX_PORTS);
 186                 return -ENODEV;
 187         }
 188
 189         if (dev_lim->uar_size > pci_resource_len(mdev->pdev, 2)) {
 190                 mthca_err(mdev, "HCA reported UAR size of 0x%x bigger than "
 191                           "PCI resource 2 size of 0x%llx, aborting.\n",
 192                           dev_lim->uar_size,
 193                           (unsigned long long)pci_resource_len(mdev->pdev, 2));
 194                 return -ENODEV;
 195         }
 196
 197         mdev->limits.num_ports          = dev_lim->num_ports;
 198         mdev->limits.vl_cap             = dev_lim->max_vl;
 199         mdev->limits.mtu_cap            = dev_lim->max_mtu;
 200         mdev->limits.gid_table_len      = dev_lim->max_gids;
 201         mdev->limits.pkey_table_len     = dev_lim->max_pkeys;
 202         mdev->limits.local_ca_ack_delay = dev_lim->local_ca_ack_delay;
 203         /*
 204          * Need to allow for worst case send WQE overhead and check
 205          * whether max_desc_sz imposes a lower limit than max_sg; UD
 206          * send has the biggest overhead.
 207          */
 208         mdev->limits.max_sg             = min_t(int, dev_lim->max_sg,
 209                                               (dev_lim->max_desc_sz -
 210                                                sizeof (struct mthca_next_seg) -
 211                                                (mthca_is_memfree(mdev) ?
 212                                                 sizeof (struct mthca_arbel_ud_seg) :
 213                                                 sizeof (struct mthca_tavor_ud_seg))) /
 214                                                 sizeof (struct mthca_data_seg));
 215         mdev->limits.max_wqes           = dev_lim->max_qp_sz;
 216         mdev->limits.max_qp_init_rdma   = dev_lim->max_requester_per_qp;
 217         mdev->limits.reserved_qps       = dev_lim->reserved_qps;
 218         mdev->limits.max_srq_wqes       = dev_lim->max_srq_sz;
 219         mdev->limits.reserved_srqs      = dev_lim->reserved_srqs;
 220         mdev->limits.reserved_eecs      = dev_lim->reserved_eecs;
 221         mdev->limits.max_desc_sz        = dev_lim->max_desc_sz;
 222         mdev->limits.max_srq_sge        = mthca_max_srq_sge(mdev);
 223         /*
 224          * Subtract 1 from the limit because we need to allocate a
 225          * spare CQE so the HCA HW can tell the difference between an
 226          * empty CQ and a full CQ.
 227          */
 228         mdev->limits.max_cqes           = dev_lim->max_cq_sz - 1;
 229         mdev->limits.reserved_cqs       = dev_lim->reserved_cqs;
 230         mdev->limits.reserved_eqs       = dev_lim->reserved_eqs;
 231         mdev->limits.reserved_mtts      = dev_lim->reserved_mtts;
 232         mdev->limits.reserved_mrws      = dev_lim->reserved_mrws;
 233         mdev->limits.reserved_uars      = dev_lim->reserved_uars;
 234         mdev->limits.reserved_pds       = dev_lim->reserved_pds;
 235         mdev->limits.port_width_cap     = dev_lim->max_port_width;
 236         mdev->limits.page_size_cap      = ~(u32) (dev_lim->min_page_sz - 1);
 237         mdev->limits.flags              = dev_lim->flags;
 238         /*
 239          * For old FW that doesn't return static rate support, use a
 240          * value of 0x3 (only static rate values of 0 or 1 are handled),
 241          * except on Sinai, where even old FW can handle static rate
 242          * values of 2 and 3.
 243          */
 244         if (dev_lim->stat_rate_support)
 245                 mdev->limits.stat_rate_support = dev_lim->stat_rate_support;
 246         else if (mdev->mthca_flags & MTHCA_FLAG_SINAI_OPT)
 247                 mdev->limits.stat_rate_support = 0xf;
 248         else
 249                 mdev->limits.stat_rate_support = 0x3;
 250
 251         /* IB_DEVICE_RESIZE_MAX_WR not supported by driver.
 252            May be doable since hardware supports it for SRQ.
 253
 254            IB_DEVICE_N_NOTIFY_CQ is supported by hardware but not by driver.
 255
 256            IB_DEVICE_SRQ_RESIZE is supported by hardware but SRQ is not
 257            supported by driver. */
 258         mdev->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT |
 259                 IB_DEVICE_PORT_ACTIVE_EVENT |
 260                 IB_DEVICE_SYS_IMAGE_GUID |
 261                 IB_DEVICE_RC_RNR_NAK_GEN;
 262
 263         if (dev_lim->flags & DEV_LIM_FLAG_BAD_PKEY_CNTR)
 264                 mdev->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR;
 265
 266         if (dev_lim->flags & DEV_LIM_FLAG_BAD_QKEY_CNTR)
 267                 mdev->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR;
 268
 269         if (dev_lim->flags & DEV_LIM_FLAG_RAW_MULTI)
 270                 mdev->device_cap_flags |= IB_DEVICE_RAW_MULTI;
 271
 272         if (dev_lim->flags & DEV_LIM_FLAG_AUTO_PATH_MIG)
 273                 mdev->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG;
 274
 275         if (dev_lim->flags & DEV_LIM_FLAG_UD_AV_PORT_ENFORCE)
 276                 mdev->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE;
 277
 278         if (dev_lim->flags & DEV_LIM_FLAG_SRQ)
 279                 mdev->mthca_flags |= MTHCA_FLAG_SRQ;
 280
 281         if (mthca_is_memfree(mdev))
 282                 if (dev_lim->flags & DEV_LIM_FLAG_IPOIB_CSUM)
 283                         mdev->device_cap_flags |= IB_DEVICE_UD_IP_CSUM;
 284
 285         return 0;
 286 }
 287
 288 static int mthca_init_tavor(struct mthca_dev *mdev)
 289 {
 290         s64 size;
 291         int err;
 292         struct mthca_dev_lim        dev_lim;
 293         struct mthca_profile        profile;
 294         struct mthca_init_hca_param init_hca;
 295
 296         err = mthca_SYS_EN(mdev);
 297         if (err) {
 298                 mthca_err(mdev, "SYS_EN command returned %d, aborting.\n", err);
 299                 return err;
 300         }
 301
 302         err = mthca_QUERY_FW(mdev);
 303         if (err) {
 304                 mthca_err(mdev, "QUERY_FW command returned %d,"
 305                                 " aborting.\n", err);
 306                 goto err_disable;
 307         }
 308         err = mthca_QUERY_DDR(mdev);
 309         if (err) {
 310                 mthca_err(mdev, "QUERY_DDR command returned %d, aborting.\n", err);
 311                 goto err_disable;
 312         }
 313
 314         err = mthca_dev_lim(mdev, &dev_lim);
 315         if (err) {
 316                 mthca_err(mdev, "QUERY_DEV_LIM command returned %d, aborting.\n", err);
 317                 goto err_disable;
 318         }
 319
 320         profile = hca_profile;
 321         profile.num_uar   = dev_lim.uar_size / PAGE_SIZE;
 322         profile.uarc_size = 0;
 323         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 324                 profile.num_srq = dev_lim.max_srqs;
 325
 326         size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
 327         if (size < 0) {
 328                 err = size;
 329                 goto err_disable;
 330         }
 331
 332         err = mthca_INIT_HCA(mdev, &init_hca);
 333         if (err) {
 334                 mthca_err(mdev, "INIT_HCA command returned %d, aborting.\n", err);
 335                 goto err_disable;
 336         }
 337
 338         return 0;
 339
 340 err_disable:
 341         mthca_SYS_DIS(mdev);
 342
 343         return err;
 344 }
 345
 346 static int mthca_load_fw(struct mthca_dev *mdev)
 347 {
 348         int err;
 349
 350         /* FIXME: use HCA-attached memory for FW if present */
 351
 352         mdev->fw.arbel.fw_icm =
 353                 mthca_alloc_icm(mdev, mdev->fw.arbel.fw_pages,
 354                                 GFP_HIGHUSER | __GFP_NOWARN, 0);
 355         if (!mdev->fw.arbel.fw_icm) {
 356                 mthca_err(mdev, "Couldn't allocate FW area, aborting.\n");
 357                 return -ENOMEM;
 358         }
 359
 360         err = mthca_MAP_FA(mdev, mdev->fw.arbel.fw_icm);
 361         if (err) {
 362                 mthca_err(mdev, "MAP_FA command returned %d, aborting.\n", err);
 363                 goto err_free;
 364         }
 365         err = mthca_RUN_FW(mdev);
 366         if (err) {
 367                 mthca_err(mdev, "RUN_FW command returned %d, aborting.\n", err);
 368                 goto err_unmap_fa;
 369         }
 370
 371         return 0;
 372
 373 err_unmap_fa:
 374         mthca_UNMAP_FA(mdev);
 375
 376 err_free:
 377         mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
 378         return err;
 379 }
 380
 381 static int mthca_init_icm(struct mthca_dev *mdev,
 382                           struct mthca_dev_lim *dev_lim,
 383                           struct mthca_init_hca_param *init_hca,
 384                           u64 icm_size)
 385 {
 386         u64 aux_pages;
 387         int err;
 388
 389         err = mthca_SET_ICM_SIZE(mdev, icm_size, &aux_pages);
 390         if (err) {
 391                 mthca_err(mdev, "SET_ICM_SIZE command returned %d, aborting.\n", err);
 392                 return err;
 393         }
 394
 395         mthca_dbg(mdev, "%lld KB of HCA context requires %lld KB aux memory.\n",
 396                   (unsigned long long) icm_size >> 10,
 397                   (unsigned long long) aux_pages << 2);
 398
 399         mdev->fw.arbel.aux_icm = mthca_alloc_icm(mdev, aux_pages,
 400                                                  GFP_HIGHUSER | __GFP_NOWARN, 0);
 401         if (!mdev->fw.arbel.aux_icm) {
 402                 mthca_err(mdev, "Couldn't allocate aux memory, aborting.\n");
 403                 return -ENOMEM;
 404         }
 405
 406         err = mthca_MAP_ICM_AUX(mdev, mdev->fw.arbel.aux_icm);
 407         if (err) {
 408                 mthca_err(mdev, "MAP_ICM_AUX returned %d, aborting.\n", err);
 409                 goto err_free_aux;
 410         }
 411
 412         err = mthca_map_eq_icm(mdev, init_hca->eqc_base);
 413         if (err) {
 414                 mthca_err(mdev, "Failed to map EQ context memory, aborting.\n");
 415                 goto err_unmap_aux;
 416         }
 417
 418         /* CPU writes to non-reserved MTTs, while HCA might DMA to reserved mtts */
 419         mdev->limits.reserved_mtts = ALIGN(mdev->limits.reserved_mtts * mdev->limits.mtt_seg_size,
 420                                            dma_get_cache_alignment()) / mdev->limits.mtt_seg_size;
 421
 422         mdev->mr_table.mtt_table = mthca_alloc_icm_table(mdev, init_hca->mtt_base,
 423                                                          mdev->limits.mtt_seg_size,
 424                                                          mdev->limits.num_mtt_segs,
 425                                                          mdev->limits.reserved_mtts,
 426                                                          1, 0);
 427         if (!mdev->mr_table.mtt_table) {
 428                 mthca_err(mdev, "Failed to map MTT context memory, aborting.\n");
 429                 err = -ENOMEM;
 430                 goto err_unmap_eq;
 431         }
 432
 433         mdev->mr_table.mpt_table = mthca_alloc_icm_table(mdev, init_hca->mpt_base,
 434                                                          dev_lim->mpt_entry_sz,
 435                                                          mdev->limits.num_mpts,
 436                                                          mdev->limits.reserved_mrws,
 437                                                          1, 1);
 438         if (!mdev->mr_table.mpt_table) {
 439                 mthca_err(mdev, "Failed to map MPT context memory, aborting.\n");
 440                 err = -ENOMEM;
 441                 goto err_unmap_mtt;
 442         }
 443
 444         mdev->qp_table.qp_table = mthca_alloc_icm_table(mdev, init_hca->qpc_base,
 445                                                         dev_lim->qpc_entry_sz,
 446                                                         mdev->limits.num_qps,
 447                                                         mdev->limits.reserved_qps,
 448                                                         0, 0);
 449         if (!mdev->qp_table.qp_table) {
 450                 mthca_err(mdev, "Failed to map QP context memory, aborting.\n");
 451                 err = -ENOMEM;
 452                 goto err_unmap_mpt;
 453         }
 454
 455         mdev->qp_table.eqp_table = mthca_alloc_icm_table(mdev, init_hca->eqpc_base,
 456                                                          dev_lim->eqpc_entry_sz,
 457                                                          mdev->limits.num_qps,
 458                                                          mdev->limits.reserved_qps,
 459                                                          0, 0);
 460         if (!mdev->qp_table.eqp_table) {
 461                 mthca_err(mdev, "Failed to map EQP context memory, aborting.\n");
 462                 err = -ENOMEM;
 463                 goto err_unmap_qp;
 464         }
 465
 466         mdev->qp_table.rdb_table = mthca_alloc_icm_table(mdev, init_hca->rdb_base,
 467                                                          MTHCA_RDB_ENTRY_SIZE,
 468                                                          mdev->limits.num_qps <<
 469                                                          mdev->qp_table.rdb_shift, 0,
 470                                                          0, 0);
 471         if (!mdev->qp_table.rdb_table) {
 472                 mthca_err(mdev, "Failed to map RDB context memory, aborting\n");
 473                 err = -ENOMEM;
 474                 goto err_unmap_eqp;
 475         }
 476
 477        mdev->cq_table.table = mthca_alloc_icm_table(mdev, init_hca->cqc_base,
 478                                                     dev_lim->cqc_entry_sz,
 479                                                     mdev->limits.num_cqs,
 480                                                     mdev->limits.reserved_cqs,
 481                                                     0, 0);
 482         if (!mdev->cq_table.table) {
 483                 mthca_err(mdev, "Failed to map CQ context memory, aborting.\n");
 484                 err = -ENOMEM;
 485                 goto err_unmap_rdb;
 486         }
 487
 488         if (mdev->mthca_flags & MTHCA_FLAG_SRQ) {
 489                 mdev->srq_table.table =
 490                         mthca_alloc_icm_table(mdev, init_hca->srqc_base,
 491                                               dev_lim->srq_entry_sz,
 492                                               mdev->limits.num_srqs,
 493                                               mdev->limits.reserved_srqs,
 494                                               0, 0);
 495                 if (!mdev->srq_table.table) {
 496                         mthca_err(mdev, "Failed to map SRQ context memory, "
 497                                   "aborting.\n");
 498                         err = -ENOMEM;
 499                         goto err_unmap_cq;
 500                 }
 501         }
 502
 503         /*
 504          * It's not strictly required, but for simplicity just map the
 505          * whole multicast group table now.  The table isn't very big
 506          * and it's a lot easier than trying to track ref counts.
 507          */
 508         mdev->mcg_table.table = mthca_alloc_icm_table(mdev, init_hca->mc_base,
 509                                                       MTHCA_MGM_ENTRY_SIZE,
 510                                                       mdev->limits.num_mgms +
 511                                                       mdev->limits.num_amgms,
 512                                                       mdev->limits.num_mgms +
 513                                                       mdev->limits.num_amgms,
 514                                                       0, 0);
 515         if (!mdev->mcg_table.table) {
 516                 mthca_err(mdev, "Failed to map MCG context memory, aborting.\n");
 517                 err = -ENOMEM;
 518                 goto err_unmap_srq;
 519         }
 520
 521         return 0;
 522
 523 err_unmap_srq:
 524         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 525                 mthca_free_icm_table(mdev, mdev->srq_table.table);
 526
 527 err_unmap_cq:
 528         mthca_free_icm_table(mdev, mdev->cq_table.table);
 529
 530 err_unmap_rdb:
 531         mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
 532
 533 err_unmap_eqp:
 534         mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
 535
 536 err_unmap_qp:
 537         mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
 538
 539 err_unmap_mpt:
 540         mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
 541
 542 err_unmap_mtt:
 543         mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
 544
 545 err_unmap_eq:
 546         mthca_unmap_eq_icm(mdev);
 547
 548 err_unmap_aux:
 549         mthca_UNMAP_ICM_AUX(mdev);
 550
 551 err_free_aux:
 552         mthca_free_icm(mdev, mdev->fw.arbel.aux_icm, 0);
 553
 554         return err;
 555 }
 556
 557 static void mthca_free_icms(struct mthca_dev *mdev)
 558 {
 559
 560         mthca_free_icm_table(mdev, mdev->mcg_table.table);
 561         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 562                 mthca_free_icm_table(mdev, mdev->srq_table.table);
 563         mthca_free_icm_table(mdev, mdev->cq_table.table);
 564         mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
 565         mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
 566         mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
 567         mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
 568         mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
 569         mthca_unmap_eq_icm(mdev);
 570
 571         mthca_UNMAP_ICM_AUX(mdev);
 572         mthca_free_icm(mdev, mdev->fw.arbel.aux_icm, 0);
 573 }
 574
 575 static int mthca_init_arbel(struct mthca_dev *mdev)
 576 {
 577         struct mthca_dev_lim        dev_lim;
 578         struct mthca_profile        profile;
 579         struct mthca_init_hca_param init_hca;
 580         s64 icm_size;
 581         int err;
 582
 583         err = mthca_QUERY_FW(mdev);
 584         if (err) {
 585                 mthca_err(mdev, "QUERY_FW command failed %d, aborting.\n", err);
 586                 return err;
 587         }
 588
 589         err = mthca_ENABLE_LAM(mdev);
 590         if (err == -EAGAIN) {
 591                 mthca_dbg(mdev, "No HCA-attached memory (running in MemFree mode)\n");
 592                 mdev->mthca_flags |= MTHCA_FLAG_NO_LAM;
 593         } else if (err) {
 594                 mthca_err(mdev, "ENABLE_LAM returned %d, aborting.\n", err);
 595                 return err;
 596         }
 597
 598         err = mthca_load_fw(mdev);
 599         if (err) {
 600                 mthca_err(mdev, "Loading FW returned %d, aborting.\n", err);
 601                 goto err_disable;
 602         }
 603
 604         err = mthca_dev_lim(mdev, &dev_lim);
 605         if (err) {
 606                 mthca_err(mdev, "QUERY_DEV_LIM returned %d, aborting.\n", err);
 607                 goto err_stop_fw;
 608         }
 609
 610         profile = hca_profile;
 611         profile.num_uar  = dev_lim.uar_size / PAGE_SIZE;
 612         profile.num_udav = 0;
 613         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 614                 profile.num_srq = dev_lim.max_srqs;
 615
 616         icm_size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
 617         if (icm_size < 0) {
 618                 err = icm_size;
 619                 goto err_stop_fw;
 620         }
 621
 622         err = mthca_init_icm(mdev, &dev_lim, &init_hca, icm_size);
 623         if (err)
 624                 goto err_stop_fw;
 625
 626         err = mthca_INIT_HCA(mdev, &init_hca);
 627         if (err) {
 628                 mthca_err(mdev, "INIT_HCA command returned %d, aborting.\n", err);
 629                 goto err_free_icm;
 630         }
 631
 632         return 0;
 633
 634 err_free_icm:
 635         mthca_free_icms(mdev);
 636
 637 err_stop_fw:
 638         mthca_UNMAP_FA(mdev);
 639         mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
 640
 641 err_disable:
 642         if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
 643                 mthca_DISABLE_LAM(mdev);
 644
 645         return err;
 646 }
 647
 648 static void mthca_close_hca(struct mthca_dev *mdev)
 649 {
 650         mthca_CLOSE_HCA(mdev, 0);
 651
 652         if (mthca_is_memfree(mdev)) {
 653                 mthca_free_icms(mdev);
 654
 655                 mthca_UNMAP_FA(mdev);
 656                 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
 657
 658                 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
 659                         mthca_DISABLE_LAM(mdev);
 660         } else
 661                 mthca_SYS_DIS(mdev);
 662 }
 663
 664 static int mthca_init_hca(struct mthca_dev *mdev)
 665 {
 666         int err;
 667         struct mthca_adapter adapter;
 668
 669         if (mthca_is_memfree(mdev))
 670                 err = mthca_init_arbel(mdev);
 671         else
 672                 err = mthca_init_tavor(mdev);
 673
 674         if (err)
 675                 return err;
 676
 677         err = mthca_QUERY_ADAPTER(mdev, &adapter);
 678         if (err) {
 679                 mthca_err(mdev, "QUERY_ADAPTER command returned %d, aborting.\n", err);
 680                 goto err_close;
 681         }
 682
 683         mdev->eq_table.inta_pin = adapter.inta_pin;
 684         if (!mthca_is_memfree(mdev))
 685                 mdev->rev_id = adapter.revision_id;
 686         memcpy(mdev->board_id, adapter.board_id, sizeof mdev->board_id);
 687
 688         return 0;
 689
 690 err_close:
 691         mthca_close_hca(mdev);
 692         return err;
 693 }
 694
 695 static int mthca_setup_hca(struct mthca_dev *dev)
 696 {
 697         int err;
 698
 699         MTHCA_INIT_DOORBELL_LOCK(&dev->doorbell_lock);
 700
 701         err = mthca_init_uar_table(dev);
 702         if (err) {
 703                 mthca_err(dev, "Failed to initialize "
 704                           "user access region table, aborting.\n");
 705                 return err;
 706         }
 707
 708         err = mthca_uar_alloc(dev, &dev->driver_uar);
 709         if (err) {
 710                 mthca_err(dev, "Failed to allocate driver access region, "
 711                           "aborting.\n");
 712                 goto err_uar_table_free;
 713         }
 714
 715         dev->kar = ioremap((phys_addr_t) dev->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
 716         if (!dev->kar) {
 717                 mthca_err(dev, "Couldn't map kernel access region, "
 718                           "aborting.\n");
 719                 err = -ENOMEM;
 720                 goto err_uar_free;
 721         }
 722
 723         err = mthca_init_pd_table(dev);
 724         if (err) {
 725                 mthca_err(dev, "Failed to initialize "
 726                           "protection domain table, aborting.\n");
 727                 goto err_kar_unmap;
 728         }
 729
 730         err = mthca_init_mr_table(dev);
 731         if (err) {
 732                 mthca_err(dev, "Failed to initialize "
 733                           "memory region table, aborting.\n");
 734                 goto err_pd_table_free;
 735         }
 736
 737         err = mthca_pd_alloc(dev, 1, &dev->driver_pd);
 738         if (err) {
 739                 mthca_err(dev, "Failed to create driver PD, "
 740                           "aborting.\n");
 741                 goto err_mr_table_free;
 742         }
 743
 744         err = mthca_init_eq_table(dev);
 745         if (err) {
 746                 mthca_err(dev, "Failed to initialize "
 747                           "event queue table, aborting.\n");
 748                 goto err_pd_free;
 749         }
 750
 751         err = mthca_cmd_use_events(dev);
 752         if (err) {
 753                 mthca_err(dev, "Failed to switch to event-driven "
 754                           "firmware commands, aborting.\n");
 755                 goto err_eq_table_free;
 756         }
 757
 758         err = mthca_NOP(dev);
 759         if (err) {
 760                 if (dev->mthca_flags & MTHCA_FLAG_MSI_X) {
 761                         mthca_warn(dev, "NOP command failed to generate interrupt "
 762                                    "(IRQ %d).\n",
 763                                    dev->eq_table.eq[MTHCA_EQ_CMD].msi_x_vector);
 764                         mthca_warn(dev, "Trying again with MSI-X disabled.\n");
 765                 } else {
 766                         mthca_err(dev, "NOP command failed to generate interrupt "
 767                                   "(IRQ %d), aborting.\n",
 768                                   dev->pdev->irq);
 769                         mthca_err(dev, "BIOS or ACPI interrupt routing problem?\n");
 770                 }
 771
 772                 goto err_cmd_poll;
 773         }
 774
 775         mthca_dbg(dev, "NOP command IRQ test passed\n");
 776
 777         err = mthca_init_cq_table(dev);
 778         if (err) {
 779                 mthca_err(dev, "Failed to initialize "
 780                           "completion queue table, aborting.\n");
 781                 goto err_cmd_poll;
 782         }
 783
 784         err = mthca_init_srq_table(dev);
 785         if (err) {
 786                 mthca_err(dev, "Failed to initialize "
 787                           "shared receive queue table, aborting.\n");
 788                 goto err_cq_table_free;
 789         }
 790
 791         err = mthca_init_qp_table(dev);
 792         if (err) {
 793                 mthca_err(dev, "Failed to initialize "
 794                           "queue pair table, aborting.\n");
 795                 goto err_srq_table_free;
 796         }
 797
 798         err = mthca_init_av_table(dev);
 799         if (err) {
 800                 mthca_err(dev, "Failed to initialize "
 801                           "address vector table, aborting.\n");
 802                 goto err_qp_table_free;
 803         }
 804
 805         err = mthca_init_mcg_table(dev);
 806         if (err) {
 807                 mthca_err(dev, "Failed to initialize "
 808                           "multicast group table, aborting.\n");
 809                 goto err_av_table_free;
 810         }
 811
 812         return 0;
 813
 814 err_av_table_free:
 815         mthca_cleanup_av_table(dev);
 816
 817 err_qp_table_free:
 818         mthca_cleanup_qp_table(dev);
 819
 820 err_srq_table_free:
 821         mthca_cleanup_srq_table(dev);
 822
 823 err_cq_table_free:
 824         mthca_cleanup_cq_table(dev);
 825
 826 err_cmd_poll:
 827         mthca_cmd_use_polling(dev);
 828
 829 err_eq_table_free:
 830         mthca_cleanup_eq_table(dev);
 831
 832 err_pd_free:
 833         mthca_pd_free(dev, &dev->driver_pd);
 834
 835 err_mr_table_free:
 836         mthca_cleanup_mr_table(dev);
 837
 838 err_pd_table_free:
 839         mthca_cleanup_pd_table(dev);
 840
 841 err_kar_unmap:
 842         iounmap(dev->kar);
 843
 844 err_uar_free:
 845         mthca_uar_free(dev, &dev->driver_uar);
 846
 847 err_uar_table_free:
 848         mthca_cleanup_uar_table(dev);
 849         return err;
 850 }
 851
 852 static int mthca_enable_msi_x(struct mthca_dev *mdev)
 853 {
 854         struct msix_entry entries[3];
 855         int err;
 856
 857         entries[0].entry = 0;
 858         entries[1].entry = 1;
 859         entries[2].entry = 2;
 860
 861         err = pci_enable_msix(mdev->pdev, entries, ARRAY_SIZE(entries));
 862         if (err) {
 863                 if (err > 0)
 864                         mthca_info(mdev, "Only %d MSI-X vectors available, "
 865                                    "not using MSI-X\n", err);
 866                 return err;
 867         }
 868
 869         mdev->eq_table.eq[MTHCA_EQ_COMP ].msi_x_vector = entries[0].vector;
 870         mdev->eq_table.eq[MTHCA_EQ_ASYNC].msi_x_vector = entries[1].vector;
 871         mdev->eq_table.eq[MTHCA_EQ_CMD  ].msi_x_vector = entries[2].vector;
 872
 873         return 0;
 874 }
 875
 876 /* Types of supported HCA */
 877 enum {
 878         TAVOR,                  /* MT23108                        */
 879         ARBEL_COMPAT,           /* MT25208 in Tavor compat mode   */
 880         ARBEL_NATIVE,           /* MT25208 with extended features */
 881         SINAI                   /* MT25204 */
 882 };
 883
 884 #define MTHCA_FW_VER(major, minor, subminor) \
 885         (((u64) (major) << 32) | ((u64) (minor) << 16) | (u64) (subminor))
 886
 887 static struct {
 888         u64 latest_fw;
 889         u32 flags;
 890 } mthca_hca_table[] = {
 891         [TAVOR]        = { .latest_fw = MTHCA_FW_VER(3, 5, 0),
 892                            .flags     = 0 },
 893         [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 8, 200),
 894                            .flags     = MTHCA_FLAG_PCIE },
 895         [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 3, 0),
 896                            .flags     = MTHCA_FLAG_MEMFREE |
 897                                         MTHCA_FLAG_PCIE },
 898         [SINAI]        = { .latest_fw = MTHCA_FW_VER(1, 2, 0),
 899                            .flags     = MTHCA_FLAG_MEMFREE |
 900                                         MTHCA_FLAG_PCIE    |
 901                                         MTHCA_FLAG_SINAI_OPT }
 902 };
 903
 904 static int __mthca_init_one(struct pci_dev *pdev, int hca_type)
 905 {
 906         int ddr_hidden = 0;
 907         int err;
 908         struct mthca_dev *mdev;
 909
 910         printk(KERN_INFO PFX "Initializing %s\n",
 911                pci_name(pdev));
 912
 913         err = pci_enable_device(pdev);
 914         if (err) {
 915                 dev_err(&pdev->dev, "Cannot enable PCI device, "
 916                         "aborting.\n");
 917                 return err;
 918         }
 919
 920         /*
 921          * Check for BARs.  We expect 0: 1MB, 2: 8MB, 4: DDR (may not
 922          * be present)
 923          */
 924         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) ||
 925             pci_resource_len(pdev, 0) != 1 << 20) {
 926                 dev_err(&pdev->dev, "Missing DCS, aborting.\n");
 927                 err = -ENODEV;
 928                 goto err_disable_pdev;
 929         }
 930         if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
 931                 dev_err(&pdev->dev, "Missing UAR, aborting.\n");
 932                 err = -ENODEV;
 933                 goto err_disable_pdev;
 934         }
 935         if (!(pci_resource_flags(pdev, 4) & IORESOURCE_MEM))
 936                 ddr_hidden = 1;
 937
 938         err = pci_request_regions(pdev, DRV_NAME);
 939         if (err) {
 940                 dev_err(&pdev->dev, "Cannot obtain PCI resources, "
 941                         "aborting.\n");
 942                 goto err_disable_pdev;
 943         }
 944
 945         pci_set_master(pdev);
 946
 947         err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
 948         if (err) {
 949                 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n");
 950                 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
 951                 if (err) {
 952                         dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n");
 953                         goto err_free_res;
 954                 }
 955         }
 956         err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
 957         if (err) {
 958                 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit "
 959                          "consistent PCI DMA mask.\n");
 960                 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
 961                 if (err) {
 962                         dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
 963                                 "aborting.\n");
 964                         goto err_free_res;
 965                 }
 966         }
 967
 968         /* We can handle large RDMA requests, so allow larger segments. */
 969         dma_set_max_seg_size(&pdev->dev, 1024 * 1024 * 1024);
 970
 971         mdev = (struct mthca_dev *) ib_alloc_device(sizeof *mdev);
 972         if (!mdev) {
 973                 dev_err(&pdev->dev, "Device struct alloc failed, "
 974                         "aborting.\n");
 975                 err = -ENOMEM;
 976                 goto err_free_res;
 977         }
 978
 979         mdev->pdev = pdev;
 980
 981         mdev->mthca_flags = mthca_hca_table[hca_type].flags;
 982         if (ddr_hidden)
 983                 mdev->mthca_flags |= MTHCA_FLAG_DDR_HIDDEN;
 984
 985         /*
 986          * Now reset the HCA before we touch the PCI capabilities or
 987          * attempt a firmware command, since a boot ROM may have left
 988          * the HCA in an undefined state.
 989          */
 990         err = mthca_reset(mdev);
 991         if (err) {
 992                 mthca_err(mdev, "Failed to reset HCA, aborting.\n");
 993                 goto err_free_dev;
 994         }
 995
 996         if (mthca_cmd_init(mdev)) {
 997                 mthca_err(mdev, "Failed to init command interface, aborting.\n");
 998                 goto err_free_dev;
 999         }
1000
1001         err = mthca_tune_pci(mdev);
1002         if (err)
1003                 goto err_cmd;
1004
1005         err = mthca_init_hca(mdev);
1006         if (err)
1007                 goto err_cmd;
1008
1009         if (mdev->fw_ver < mthca_hca_table[hca_type].latest_fw) {
1010                 mthca_warn(mdev, "HCA FW version %d.%d.%03d is old (%d.%d.%03d is current).\n",
1011                            (int) (mdev->fw_ver >> 32), (int) (mdev->fw_ver >> 16) & 0xffff,
1012                            (int) (mdev->fw_ver & 0xffff),
1013                            (int) (mthca_hca_table[hca_type].latest_fw >> 32),
1014                            (int) (mthca_hca_table[hca_type].latest_fw >> 16) & 0xffff,
1015                            (int) (mthca_hca_table[hca_type].latest_fw & 0xffff));
1016                 mthca_warn(mdev, "If you have problems, try updating your HCA FW.\n");
1017         }
1018
1019         if (msi_x && !mthca_enable_msi_x(mdev))
1020                 mdev->mthca_flags |= MTHCA_FLAG_MSI_X;
1021
1022         err = mthca_setup_hca(mdev);
1023         if (err == -EBUSY && (mdev->mthca_flags & MTHCA_FLAG_MSI_X)) {
1024                 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1025                         pci_disable_msix(pdev);
1026                 mdev->mthca_flags &= ~MTHCA_FLAG_MSI_X;
1027
1028                 err = mthca_setup_hca(mdev);
1029         }
1030
1031         if (err)
1032                 goto err_close;
1033
1034         err = mthca_register_device(mdev);
1035         if (err)
1036                 goto err_cleanup;
1037
1038         err = mthca_create_agents(mdev);
1039         if (err)
1040                 goto err_unregister;
1041
1042         pci_set_drvdata(pdev, mdev);
1043         mdev->hca_type = hca_type;
1044
1045         mdev->active = true;
1046
1047         return 0;
1048
1049 err_unregister:
1050         mthca_unregister_device(mdev);
1051
1052 err_cleanup:
1053         mthca_cleanup_mcg_table(mdev);
1054         mthca_cleanup_av_table(mdev);
1055         mthca_cleanup_qp_table(mdev);
1056         mthca_cleanup_srq_table(mdev);
1057         mthca_cleanup_cq_table(mdev);
1058         mthca_cmd_use_polling(mdev);
1059         mthca_cleanup_eq_table(mdev);
1060
1061         mthca_pd_free(mdev, &mdev->driver_pd);
1062
1063         mthca_cleanup_mr_table(mdev);
1064         mthca_cleanup_pd_table(mdev);
1065         mthca_cleanup_uar_table(mdev);
1066
1067 err_close:
1068         if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1069                 pci_disable_msix(pdev);
1070
1071         mthca_close_hca(mdev);
1072
1073 err_cmd:
1074         mthca_cmd_cleanup(mdev);
1075
1076 err_free_dev:
1077         ib_dealloc_device(&mdev->ib_dev);
1078
1079 err_free_res:
1080         pci_release_regions(pdev);
1081
1082 err_disable_pdev:
1083         pci_disable_device(pdev);
1084         pci_set_drvdata(pdev, NULL);
1085         return err;
1086 }
1087
1088 static void __mthca_remove_one(struct pci_dev *pdev)
1089 {
1090         struct mthca_dev *mdev = pci_get_drvdata(pdev);
1091         int p;
1092
1093         if (mdev) {
1094                 mthca_free_agents(mdev);
1095                 mthca_unregister_device(mdev);
1096
1097                 for (p = 1; p <= mdev->limits.num_ports; ++p)
1098                         mthca_CLOSE_IB(mdev, p);
1099
1100                 mthca_cleanup_mcg_table(mdev);
1101                 mthca_cleanup_av_table(mdev);
1102                 mthca_cleanup_qp_table(mdev);
1103                 mthca_cleanup_srq_table(mdev);
1104                 mthca_cleanup_cq_table(mdev);
1105                 mthca_cmd_use_polling(mdev);
1106                 mthca_cleanup_eq_table(mdev);
1107
1108                 mthca_pd_free(mdev, &mdev->driver_pd);
1109
1110                 mthca_cleanup_mr_table(mdev);
1111                 mthca_cleanup_pd_table(mdev);
1112
1113                 iounmap(mdev->kar);
1114                 mthca_uar_free(mdev, &mdev->driver_uar);
1115                 mthca_cleanup_uar_table(mdev);
1116                 mthca_close_hca(mdev);
1117                 mthca_cmd_cleanup(mdev);
1118
1119                 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1120                         pci_disable_msix(pdev);
1121
1122                 ib_dealloc_device(&mdev->ib_dev);
1123                 pci_release_regions(pdev);
1124                 pci_disable_device(pdev);
1125                 pci_set_drvdata(pdev, NULL);
1126         }
1127 }
1128
1129 int __mthca_restart_one(struct pci_dev *pdev)
1130 {
1131         struct mthca_dev *mdev;
1132         int hca_type;
1133
1134         mdev = pci_get_drvdata(pdev);
1135         if (!mdev)
1136                 return -ENODEV;
1137         hca_type = mdev->hca_type;
1138         __mthca_remove_one(pdev);
1139         return __mthca_init_one(pdev, hca_type);
1140 }
1141
1142 static int __devinit mthca_init_one(struct pci_dev *pdev,
1143                                     const struct pci_device_id *id)
1144 {
1145         int ret;
1146
1147         mutex_lock(&mthca_device_mutex);
1148
1149         printk_once(KERN_INFO "%s", mthca_version);
1150
1151         if (id->driver_data >= ARRAY_SIZE(mthca_hca_table)) {
1152                 printk(KERN_ERR PFX "%s has invalid driver data %lx\n",
1153                        pci_name(pdev), id->driver_data);
1154                 mutex_unlock(&mthca_device_mutex);
1155                 return -ENODEV;
1156         }
1157
1158         ret = __mthca_init_one(pdev, id->driver_data);
1159
1160         mutex_unlock(&mthca_device_mutex);
1161
1162         return ret;
1163 }
1164
1165 static void __devexit mthca_remove_one(struct pci_dev *pdev)
1166 {
1167         mutex_lock(&mthca_device_mutex);
1168         __mthca_remove_one(pdev);
1169         mutex_unlock(&mthca_device_mutex);
1170 }
1171
1172 static struct pci_device_id mthca_pci_table[] = {
1173         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR),
1174           .driver_data = TAVOR },
1175         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_TAVOR),
1176           .driver_data = TAVOR },
1177         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1178           .driver_data = ARBEL_COMPAT },
1179         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1180           .driver_data = ARBEL_COMPAT },
1181         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL),
1182           .driver_data = ARBEL_NATIVE },
1183         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL),
1184           .driver_data = ARBEL_NATIVE },
1185         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI),
1186           .driver_data = SINAI },
1187         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI),
1188           .driver_data = SINAI },
1189         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1190           .driver_data = SINAI },
1191         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1192           .driver_data = SINAI },
1193         { 0, }
1194 };
1195
1196 MODULE_DEVICE_TABLE(pci, mthca_pci_table);
1197
1198 static struct pci_driver mthca_driver = {
1199         .name           = DRV_NAME,
1200         .id_table       = mthca_pci_table,
1201         .probe          = mthca_init_one,
1202         .remove         = __devexit_p(mthca_remove_one)
1203 };
1204
1205 static void __init __mthca_check_profile_val(const char *name, int *pval,
1206                                              int pval_default)
1207 {
1208         /* value must be positive and power of 2 */
1209         int old_pval = *pval;
1210
1211         if (old_pval <= 0)
1212                 *pval = pval_default;
1213         else
1214                 *pval = roundup_pow_of_two(old_pval);
1215
1216         if (old_pval != *pval) {
1217                 printk(KERN_WARNING PFX "Invalid value %d for %s in module parameter.\n",
1218                        old_pval, name);
1219                 printk(KERN_WARNING PFX "Corrected %s to %d.\n", name, *pval);
1220         }
1221 }
1222
1223 #define mthca_check_profile_val(name, default)                          \
1224         __mthca_check_profile_val(#name, &hca_profile.name, default)
1225
1226 static void __init mthca_validate_profile(void)
1227 {
1228         mthca_check_profile_val(num_qp,            MTHCA_DEFAULT_NUM_QP);
1229         mthca_check_profile_val(rdb_per_qp,        MTHCA_DEFAULT_RDB_PER_QP);
1230         mthca_check_profile_val(num_cq,            MTHCA_DEFAULT_NUM_CQ);
1231         mthca_check_profile_val(num_mcg,           MTHCA_DEFAULT_NUM_MCG);
1232         mthca_check_profile_val(num_mpt,           MTHCA_DEFAULT_NUM_MPT);
1233         mthca_check_profile_val(num_mtt,           MTHCA_DEFAULT_NUM_MTT);
1234         mthca_check_profile_val(num_udav,          MTHCA_DEFAULT_NUM_UDAV);
1235         mthca_check_profile_val(fmr_reserved_mtts, MTHCA_DEFAULT_NUM_RESERVED_MTTS);
1236
1237         if (hca_profile.fmr_reserved_mtts >= hca_profile.num_mtt) {
1238                 printk(KERN_WARNING PFX "Invalid fmr_reserved_mtts module parameter %d.\n",
1239                        hca_profile.fmr_reserved_mtts);
1240                 printk(KERN_WARNING PFX "(Must be smaller than num_mtt %d)\n",
1241                        hca_profile.num_mtt);
1242                 hca_profile.fmr_reserved_mtts = hca_profile.num_mtt / 2;
1243                 printk(KERN_WARNING PFX "Corrected fmr_reserved_mtts to %d.\n",
1244                        hca_profile.fmr_reserved_mtts);
1245         }
1246
1247         if ((log_mtts_per_seg < 1) || (log_mtts_per_seg > 5)) {
1248                 printk(KERN_WARNING PFX "bad log_mtts_per_seg (%d). Using default - %d\n",
1249                        log_mtts_per_seg, ilog2(MTHCA_MTT_SEG_SIZE / 8));
1250                 log_mtts_per_seg = ilog2(MTHCA_MTT_SEG_SIZE / 8);
1251         }
1252 }
1253
1254 static int __init mthca_init(void)
1255 {
1256         int ret;
1257
1258         mthca_validate_profile();
1259
1260         ret = mthca_catas_init();
1261         if (ret)
1262                 return ret;
1263
1264         ret = pci_register_driver(&mthca_driver);
1265         if (ret < 0) {
1266                 mthca_catas_cleanup();
1267                 return ret;
1268         }
1269
1270         return 0;
1271 }
1272
1273 static void __exit mthca_cleanup(void)
1274 {
1275         pci_unregister_driver(&mthca_driver);
1276         mthca_catas_cleanup();
1277 }
1278
1279 module_init(mthca_init);
1280 module_exit(mthca_cleanup);