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
  53 #ifdef CONFIG_INFINIBAND_MTHCA_DEBUG
  54
  55 int mthca_debug_level = 0;
  56 module_param_named(debug_level, mthca_debug_level, int, 0644);
  57 MODULE_PARM_DESC(debug_level, "Enable debug tracing if > 0");
  58
  59 #endif /* CONFIG_INFINIBAND_MTHCA_DEBUG */
  60
  61 #ifdef CONFIG_PCI_MSI
  62
  63 static int msi_x = 1;
  64 module_param(msi_x, int, 0444);
  65 MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero");
  66
  67 #else /* CONFIG_PCI_MSI */
  68
  69 #define msi_x (0)
  70
  71 #endif /* CONFIG_PCI_MSI */
  72
  73 static int tune_pci = 0;
  74 module_param(tune_pci, int, 0444);
  75 MODULE_PARM_DESC(tune_pci, "increase PCI burst from the default set by BIOS if nonzero");
  76
  77 DEFINE_MUTEX(mthca_device_mutex);
  78
  79 #define MTHCA_DEFAULT_NUM_QP            (1 << 16)
  80 #define MTHCA_DEFAULT_RDB_PER_QP        (1 << 2)
  81 #define MTHCA_DEFAULT_NUM_CQ            (1 << 16)
  82 #define MTHCA_DEFAULT_NUM_MCG           (1 << 13)
  83 #define MTHCA_DEFAULT_NUM_MPT           (1 << 17)
  84 #define MTHCA_DEFAULT_NUM_MTT           (1 << 20)
  85 #define MTHCA_DEFAULT_NUM_UDAV          (1 << 15)
  86 #define MTHCA_DEFAULT_NUM_RESERVED_MTTS (1 << 18)
  87 #define MTHCA_DEFAULT_NUM_UARC_SIZE     (1 << 18)
  88
  89 static struct mthca_profile hca_profile = {
  90         .num_qp             = MTHCA_DEFAULT_NUM_QP,
  91         .rdb_per_qp         = MTHCA_DEFAULT_RDB_PER_QP,
  92         .num_cq             = MTHCA_DEFAULT_NUM_CQ,
  93         .num_mcg            = MTHCA_DEFAULT_NUM_MCG,
  94         .num_mpt            = MTHCA_DEFAULT_NUM_MPT,
  95         .num_mtt            = MTHCA_DEFAULT_NUM_MTT,
  96         .num_udav           = MTHCA_DEFAULT_NUM_UDAV,          /* Tavor only */
  97         .fmr_reserved_mtts  = MTHCA_DEFAULT_NUM_RESERVED_MTTS, /* Tavor only */
  98         .uarc_size          = MTHCA_DEFAULT_NUM_UARC_SIZE,     /* Arbel only */
  99 };
 100
 101 module_param_named(num_qp, hca_profile.num_qp, int, 0444);
 102 MODULE_PARM_DESC(num_qp, "maximum number of QPs per HCA");
 103
 104 module_param_named(rdb_per_qp, hca_profile.rdb_per_qp, int, 0444);
 105 MODULE_PARM_DESC(rdb_per_qp, "number of RDB buffers per QP");
 106
 107 module_param_named(num_cq, hca_profile.num_cq, int, 0444);
 108 MODULE_PARM_DESC(num_cq, "maximum number of CQs per HCA");
 109
 110 module_param_named(num_mcg, hca_profile.num_mcg, int, 0444);
 111 MODULE_PARM_DESC(num_mcg, "maximum number of multicast groups per HCA");
 112
 113 module_param_named(num_mpt, hca_profile.num_mpt, int, 0444);
 114 MODULE_PARM_DESC(num_mpt,
 115                 "maximum number of memory protection table entries per HCA");
 116
 117 module_param_named(num_mtt, hca_profile.num_mtt, int, 0444);
 118 MODULE_PARM_DESC(num_mtt,
 119                  "maximum number of memory translation table segments per HCA");
 120
 121 module_param_named(num_udav, hca_profile.num_udav, int, 0444);
 122 MODULE_PARM_DESC(num_udav, "maximum number of UD address vectors per HCA");
 123
 124 module_param_named(fmr_reserved_mtts, hca_profile.fmr_reserved_mtts, int, 0444);
 125 MODULE_PARM_DESC(fmr_reserved_mtts,
 126                  "number of memory translation table segments reserved for FMR");
 127
 128 static int log_mtts_per_seg = ilog2(MTHCA_MTT_SEG_SIZE / 8);
 129 module_param_named(log_mtts_per_seg, log_mtts_per_seg, int, 0444);
 130 MODULE_PARM_DESC(log_mtts_per_seg, "Log2 number of MTT entries per segment (1-5)");
 131
 132 static char mthca_version[] =
 133         DRV_NAME ": Mellanox InfiniBand HCA driver v"
 134         DRV_VERSION " (" DRV_RELDATE ")\n";
 135
 136 static int mthca_tune_pci(struct mthca_dev *mdev)
 137 {
 138         if (!tune_pci)
 139                 return 0;
 140
 141         /* First try to max out Read Byte Count */
 142         if (pci_find_capability(mdev->pdev, PCI_CAP_ID_PCIX)) {
 143                 if (pcix_set_mmrbc(mdev->pdev, pcix_get_max_mmrbc(mdev->pdev))) {
 144                         mthca_err(mdev, "Couldn't set PCI-X max read count, "
 145                                 "aborting.\n");
 146                         return -ENODEV;
 147                 }
 148         } else if (!(mdev->mthca_flags & MTHCA_FLAG_PCIE))
 149                 mthca_info(mdev, "No PCI-X capability, not setting RBC.\n");
 150
 151         if (pci_is_pcie(mdev->pdev)) {
 152                 if (pcie_set_readrq(mdev->pdev, 4096)) {
 153                         mthca_err(mdev, "Couldn't write PCI Express read request, "
 154                                 "aborting.\n");
 155                         return -ENODEV;
 156                 }
 157         } else if (mdev->mthca_flags & MTHCA_FLAG_PCIE)
 158                 mthca_info(mdev, "No PCI Express capability, "
 159                            "not setting Max Read Request Size.\n");
 160
 161         return 0;
 162 }
 163
 164 static int mthca_dev_lim(struct mthca_dev *mdev, struct mthca_dev_lim *dev_lim)
 165 {
 166         int err;
 167
 168         mdev->limits.mtt_seg_size = (1 << log_mtts_per_seg) * 8;
 169         err = mthca_QUERY_DEV_LIM(mdev, dev_lim);
 170         if (err) {
 171                 mthca_err(mdev, "QUERY_DEV_LIM command returned %d"
 172                                 ", aborting.\n", err);
 173                 return err;
 174         }
 175         if (dev_lim->min_page_sz > PAGE_SIZE) {
 176                 mthca_err(mdev, "HCA minimum page size of %d bigger than "
 177                           "kernel PAGE_SIZE of %ld, aborting.\n",
 178                           dev_lim->min_page_sz, PAGE_SIZE);
 179                 return -ENODEV;
 180         }
 181         if (dev_lim->num_ports > MTHCA_MAX_PORTS) {
 182                 mthca_err(mdev, "HCA has %d ports, but we only support %d, "
 183                           "aborting.\n",
 184                           dev_lim->num_ports, MTHCA_MAX_PORTS);
 185                 return -ENODEV;
 186         }
 187
 188         if (dev_lim->uar_size > pci_resource_len(mdev->pdev, 2)) {
 189                 mthca_err(mdev, "HCA reported UAR size of 0x%x bigger than "
 190                           "PCI resource 2 size of 0x%llx, aborting.\n",
 191                           dev_lim->uar_size,
 192                           (unsigned long long)pci_resource_len(mdev->pdev, 2));
 193                 return -ENODEV;
 194         }
 195
 196         mdev->limits.num_ports          = dev_lim->num_ports;
 197         mdev->limits.vl_cap             = dev_lim->max_vl;
 198         mdev->limits.mtu_cap            = dev_lim->max_mtu;
 199         mdev->limits.gid_table_len      = dev_lim->max_gids;
 200         mdev->limits.pkey_table_len     = dev_lim->max_pkeys;
 201         mdev->limits.local_ca_ack_delay = dev_lim->local_ca_ack_delay;
 202         /*
 203          * Need to allow for worst case send WQE overhead and check
 204          * whether max_desc_sz imposes a lower limit than max_sg; UD
 205          * send has the biggest overhead.
 206          */
 207         mdev->limits.max_sg             = min_t(int, dev_lim->max_sg,
 208                                               (dev_lim->max_desc_sz -
 209                                                sizeof (struct mthca_next_seg) -
 210                                                (mthca_is_memfree(mdev) ?
 211                                                 sizeof (struct mthca_arbel_ud_seg) :
 212                                                 sizeof (struct mthca_tavor_ud_seg))) /
 213                                                 sizeof (struct mthca_data_seg));
 214         mdev->limits.max_wqes           = dev_lim->max_qp_sz;
 215         mdev->limits.max_qp_init_rdma   = dev_lim->max_requester_per_qp;
 216         mdev->limits.reserved_qps       = dev_lim->reserved_qps;
 217         mdev->limits.max_srq_wqes       = dev_lim->max_srq_sz;
 218         mdev->limits.reserved_srqs      = dev_lim->reserved_srqs;
 219         mdev->limits.reserved_eecs      = dev_lim->reserved_eecs;
 220         mdev->limits.max_desc_sz        = dev_lim->max_desc_sz;
 221         mdev->limits.max_srq_sge        = mthca_max_srq_sge(mdev);
 222         /*
 223          * Subtract 1 from the limit because we need to allocate a
 224          * spare CQE so the HCA HW can tell the difference between an
 225          * empty CQ and a full CQ.
 226          */
 227         mdev->limits.max_cqes           = dev_lim->max_cq_sz - 1;
 228         mdev->limits.reserved_cqs       = dev_lim->reserved_cqs;
 229         mdev->limits.reserved_eqs       = dev_lim->reserved_eqs;
 230         mdev->limits.reserved_mtts      = dev_lim->reserved_mtts;
 231         mdev->limits.reserved_mrws      = dev_lim->reserved_mrws;
 232         mdev->limits.reserved_uars      = dev_lim->reserved_uars;
 233         mdev->limits.reserved_pds       = dev_lim->reserved_pds;
 234         mdev->limits.port_width_cap     = dev_lim->max_port_width;
 235         mdev->limits.page_size_cap      = ~(u32) (dev_lim->min_page_sz - 1);
 236         mdev->limits.flags              = dev_lim->flags;
 237         /*
 238          * For old FW that doesn't return static rate support, use a
 239          * value of 0x3 (only static rate values of 0 or 1 are handled),
 240          * except on Sinai, where even old FW can handle static rate
 241          * values of 2 and 3.
 242          */
 243         if (dev_lim->stat_rate_support)
 244                 mdev->limits.stat_rate_support = dev_lim->stat_rate_support;
 245         else if (mdev->mthca_flags & MTHCA_FLAG_SINAI_OPT)
 246                 mdev->limits.stat_rate_support = 0xf;
 247         else
 248                 mdev->limits.stat_rate_support = 0x3;
 249
 250         /* IB_DEVICE_RESIZE_MAX_WR not supported by driver.
 251            May be doable since hardware supports it for SRQ.
 252
 253            IB_DEVICE_N_NOTIFY_CQ is supported by hardware but not by driver.
 254
 255            IB_DEVICE_SRQ_RESIZE is supported by hardware but SRQ is not
 256            supported by driver. */
 257         mdev->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT |
 258                 IB_DEVICE_PORT_ACTIVE_EVENT |
 259                 IB_DEVICE_SYS_IMAGE_GUID |
 260                 IB_DEVICE_RC_RNR_NAK_GEN;
 261
 262         if (dev_lim->flags & DEV_LIM_FLAG_BAD_PKEY_CNTR)
 263                 mdev->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR;
 264
 265         if (dev_lim->flags & DEV_LIM_FLAG_BAD_QKEY_CNTR)
 266                 mdev->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR;
 267
 268         if (dev_lim->flags & DEV_LIM_FLAG_RAW_MULTI)
 269                 mdev->device_cap_flags |= IB_DEVICE_RAW_MULTI;
 270
 271         if (dev_lim->flags & DEV_LIM_FLAG_AUTO_PATH_MIG)
 272                 mdev->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG;
 273
 274         if (dev_lim->flags & DEV_LIM_FLAG_UD_AV_PORT_ENFORCE)
 275                 mdev->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE;
 276
 277         if (dev_lim->flags & DEV_LIM_FLAG_SRQ)
 278                 mdev->mthca_flags |= MTHCA_FLAG_SRQ;
 279
 280         if (mthca_is_memfree(mdev))
 281                 if (dev_lim->flags & DEV_LIM_FLAG_IPOIB_CSUM)
 282                         mdev->device_cap_flags |= IB_DEVICE_UD_IP_CSUM;
 283
 284         return 0;
 285 }
 286
 287 static int mthca_init_tavor(struct mthca_dev *mdev)
 288 {
 289         s64 size;
 290         int err;
 291         struct mthca_dev_lim        dev_lim;
 292         struct mthca_profile        profile;
 293         struct mthca_init_hca_param init_hca;
 294
 295         err = mthca_SYS_EN(mdev);
 296         if (err) {
 297                 mthca_err(mdev, "SYS_EN command returned %d, aborting.\n", err);
 298                 return err;
 299         }
 300
 301         err = mthca_QUERY_FW(mdev);
 302         if (err) {
 303                 mthca_err(mdev, "QUERY_FW command returned %d,"
 304                                 " aborting.\n", err);
 305                 goto err_disable;
 306         }
 307         err = mthca_QUERY_DDR(mdev);
 308         if (err) {
 309                 mthca_err(mdev, "QUERY_DDR command returned %d, aborting.\n", err);
 310                 goto err_disable;
 311         }
 312
 313         err = mthca_dev_lim(mdev, &dev_lim);
 314         if (err) {
 315                 mthca_err(mdev, "QUERY_DEV_LIM command returned %d, aborting.\n", err);
 316                 goto err_disable;
 317         }
 318
 319         profile = hca_profile;
 320         profile.num_uar   = dev_lim.uar_size / PAGE_SIZE;
 321         profile.uarc_size = 0;
 322         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 323                 profile.num_srq = dev_lim.max_srqs;
 324
 325         size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
 326         if (size < 0) {
 327                 err = size;
 328                 goto err_disable;
 329         }
 330
 331         err = mthca_INIT_HCA(mdev, &init_hca);
 332         if (err) {
 333                 mthca_err(mdev, "INIT_HCA command returned %d, aborting.\n", err);
 334                 goto err_disable;
 335         }
 336
 337         return 0;
 338
 339 err_disable:
 340         mthca_SYS_DIS(mdev);
 341
 342         return err;
 343 }
 344
 345 static int mthca_load_fw(struct mthca_dev *mdev)
 346 {
 347         int err;
 348
 349         /* FIXME: use HCA-attached memory for FW if present */
 350
 351         mdev->fw.arbel.fw_icm =
 352                 mthca_alloc_icm(mdev, mdev->fw.arbel.fw_pages,
 353                                 GFP_HIGHUSER | __GFP_NOWARN, 0);
 354         if (!mdev->fw.arbel.fw_icm) {
 355                 mthca_err(mdev, "Couldn't allocate FW area, aborting.\n");
 356                 return -ENOMEM;
 357         }
 358
 359         err = mthca_MAP_FA(mdev, mdev->fw.arbel.fw_icm);
 360         if (err) {
 361                 mthca_err(mdev, "MAP_FA command returned %d, aborting.\n", err);
 362                 goto err_free;
 363         }
 364         err = mthca_RUN_FW(mdev);
 365         if (err) {
 366                 mthca_err(mdev, "RUN_FW command returned %d, aborting.\n", err);
 367                 goto err_unmap_fa;
 368         }
 369
 370         return 0;
 371
 372 err_unmap_fa:
 373         mthca_UNMAP_FA(mdev);
 374
 375 err_free:
 376         mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
 377         return err;
 378 }
 379
 380 static int mthca_init_icm(struct mthca_dev *mdev,
 381                           struct mthca_dev_lim *dev_lim,
 382                           struct mthca_init_hca_param *init_hca,
 383                           u64 icm_size)
 384 {
 385         u64 aux_pages;
 386         int err;
 387
 388         err = mthca_SET_ICM_SIZE(mdev, icm_size, &aux_pages);
 389         if (err) {
 390                 mthca_err(mdev, "SET_ICM_SIZE command returned %d, aborting.\n", err);
 391                 return err;
 392         }
 393
 394         mthca_dbg(mdev, "%lld KB of HCA context requires %lld KB aux memory.\n",
 395                   (unsigned long long) icm_size >> 10,
 396                   (unsigned long long) aux_pages << 2);
 397
 398         mdev->fw.arbel.aux_icm = mthca_alloc_icm(mdev, aux_pages,
 399                                                  GFP_HIGHUSER | __GFP_NOWARN, 0);
 400         if (!mdev->fw.arbel.aux_icm) {
 401                 mthca_err(mdev, "Couldn't allocate aux memory, aborting.\n");
 402                 return -ENOMEM;
 403         }
 404
 405         err = mthca_MAP_ICM_AUX(mdev, mdev->fw.arbel.aux_icm);
 406         if (err) {
 407                 mthca_err(mdev, "MAP_ICM_AUX returned %d, aborting.\n", err);
 408                 goto err_free_aux;
 409         }
 410
 411         err = mthca_map_eq_icm(mdev, init_hca->eqc_base);
 412         if (err) {
 413                 mthca_err(mdev, "Failed to map EQ context memory, aborting.\n");
 414                 goto err_unmap_aux;
 415         }
 416
 417         /* CPU writes to non-reserved MTTs, while HCA might DMA to reserved mtts */
 418         mdev->limits.reserved_mtts = ALIGN(mdev->limits.reserved_mtts * mdev->limits.mtt_seg_size,
 419                                            dma_get_cache_alignment()) / mdev->limits.mtt_seg_size;
 420
 421         mdev->mr_table.mtt_table = mthca_alloc_icm_table(mdev, init_hca->mtt_base,
 422                                                          mdev->limits.mtt_seg_size,
 423                                                          mdev->limits.num_mtt_segs,
 424                                                          mdev->limits.reserved_mtts,
 425                                                          1, 0);
 426         if (!mdev->mr_table.mtt_table) {
 427                 mthca_err(mdev, "Failed to map MTT context memory, aborting.\n");
 428                 err = -ENOMEM;
 429                 goto err_unmap_eq;
 430         }
 431
 432         mdev->mr_table.mpt_table = mthca_alloc_icm_table(mdev, init_hca->mpt_base,
 433                                                          dev_lim->mpt_entry_sz,
 434                                                          mdev->limits.num_mpts,
 435                                                          mdev->limits.reserved_mrws,
 436                                                          1, 1);
 437         if (!mdev->mr_table.mpt_table) {
 438                 mthca_err(mdev, "Failed to map MPT context memory, aborting.\n");
 439                 err = -ENOMEM;
 440                 goto err_unmap_mtt;
 441         }
 442
 443         mdev->qp_table.qp_table = mthca_alloc_icm_table(mdev, init_hca->qpc_base,
 444                                                         dev_lim->qpc_entry_sz,
 445                                                         mdev->limits.num_qps,
 446                                                         mdev->limits.reserved_qps,
 447                                                         0, 0);
 448         if (!mdev->qp_table.qp_table) {
 449                 mthca_err(mdev, "Failed to map QP context memory, aborting.\n");
 450                 err = -ENOMEM;
 451                 goto err_unmap_mpt;
 452         }
 453
 454         mdev->qp_table.eqp_table = mthca_alloc_icm_table(mdev, init_hca->eqpc_base,
 455                                                          dev_lim->eqpc_entry_sz,
 456                                                          mdev->limits.num_qps,
 457                                                          mdev->limits.reserved_qps,
 458                                                          0, 0);
 459         if (!mdev->qp_table.eqp_table) {
 460                 mthca_err(mdev, "Failed to map EQP context memory, aborting.\n");
 461                 err = -ENOMEM;
 462                 goto err_unmap_qp;
 463         }
 464
 465         mdev->qp_table.rdb_table = mthca_alloc_icm_table(mdev, init_hca->rdb_base,
 466                                                          MTHCA_RDB_ENTRY_SIZE,
 467                                                          mdev->limits.num_qps <<
 468                                                          mdev->qp_table.rdb_shift, 0,
 469                                                          0, 0);
 470         if (!mdev->qp_table.rdb_table) {
 471                 mthca_err(mdev, "Failed to map RDB context memory, aborting\n");
 472                 err = -ENOMEM;
 473                 goto err_unmap_eqp;
 474         }
 475
 476        mdev->cq_table.table = mthca_alloc_icm_table(mdev, init_hca->cqc_base,
 477                                                     dev_lim->cqc_entry_sz,
 478                                                     mdev->limits.num_cqs,
 479                                                     mdev->limits.reserved_cqs,
 480                                                     0, 0);
 481         if (!mdev->cq_table.table) {
 482                 mthca_err(mdev, "Failed to map CQ context memory, aborting.\n");
 483                 err = -ENOMEM;
 484                 goto err_unmap_rdb;
 485         }
 486
 487         if (mdev->mthca_flags & MTHCA_FLAG_SRQ) {
 488                 mdev->srq_table.table =
 489                         mthca_alloc_icm_table(mdev, init_hca->srqc_base,
 490                                               dev_lim->srq_entry_sz,
 491                                               mdev->limits.num_srqs,
 492                                               mdev->limits.reserved_srqs,
 493                                               0, 0);
 494                 if (!mdev->srq_table.table) {
 495                         mthca_err(mdev, "Failed to map SRQ context memory, "
 496                                   "aborting.\n");
 497                         err = -ENOMEM;
 498                         goto err_unmap_cq;
 499                 }
 500         }
 501
 502         /*
 503          * It's not strictly required, but for simplicity just map the
 504          * whole multicast group table now.  The table isn't very big
 505          * and it's a lot easier than trying to track ref counts.
 506          */
 507         mdev->mcg_table.table = mthca_alloc_icm_table(mdev, init_hca->mc_base,
 508                                                       MTHCA_MGM_ENTRY_SIZE,
 509                                                       mdev->limits.num_mgms +
 510                                                       mdev->limits.num_amgms,
 511                                                       mdev->limits.num_mgms +
 512                                                       mdev->limits.num_amgms,
 513                                                       0, 0);
 514         if (!mdev->mcg_table.table) {
 515                 mthca_err(mdev, "Failed to map MCG context memory, aborting.\n");
 516                 err = -ENOMEM;
 517                 goto err_unmap_srq;
 518         }
 519
 520         return 0;
 521
 522 err_unmap_srq:
 523         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 524                 mthca_free_icm_table(mdev, mdev->srq_table.table);
 525
 526 err_unmap_cq:
 527         mthca_free_icm_table(mdev, mdev->cq_table.table);
 528
 529 err_unmap_rdb:
 530         mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
 531
 532 err_unmap_eqp:
 533         mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
 534
 535 err_unmap_qp:
 536         mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
 537
 538 err_unmap_mpt:
 539         mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
 540
 541 err_unmap_mtt:
 542         mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
 543
 544 err_unmap_eq:
 545         mthca_unmap_eq_icm(mdev);
 546
 547 err_unmap_aux:
 548         mthca_UNMAP_ICM_AUX(mdev);
 549
 550 err_free_aux:
 551         mthca_free_icm(mdev, mdev->fw.arbel.aux_icm, 0);
 552
 553         return err;
 554 }
 555
 556 static void mthca_free_icms(struct mthca_dev *mdev)
 557 {
 558
 559         mthca_free_icm_table(mdev, mdev->mcg_table.table);
 560         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 561                 mthca_free_icm_table(mdev, mdev->srq_table.table);
 562         mthca_free_icm_table(mdev, mdev->cq_table.table);
 563         mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
 564         mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
 565         mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
 566         mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
 567         mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
 568         mthca_unmap_eq_icm(mdev);
 569
 570         mthca_UNMAP_ICM_AUX(mdev);
 571         mthca_free_icm(mdev, mdev->fw.arbel.aux_icm, 0);
 572 }
 573
 574 static int mthca_init_arbel(struct mthca_dev *mdev)
 575 {
 576         struct mthca_dev_lim        dev_lim;
 577         struct mthca_profile        profile;
 578         struct mthca_init_hca_param init_hca;
 579         s64 icm_size;
 580         int err;
 581
 582         err = mthca_QUERY_FW(mdev);
 583         if (err) {
 584                 mthca_err(mdev, "QUERY_FW command failed %d, aborting.\n", err);
 585                 return err;
 586         }
 587
 588         err = mthca_ENABLE_LAM(mdev);
 589         if (err == -EAGAIN) {
 590                 mthca_dbg(mdev, "No HCA-attached memory (running in MemFree mode)\n");
 591                 mdev->mthca_flags |= MTHCA_FLAG_NO_LAM;
 592         } else if (err) {
 593                 mthca_err(mdev, "ENABLE_LAM returned %d, aborting.\n", err);
 594                 return err;
 595         }
 596
 597         err = mthca_load_fw(mdev);
 598         if (err) {
 599                 mthca_err(mdev, "Loading FW returned %d, aborting.\n", err);
 600                 goto err_disable;
 601         }
 602
 603         err = mthca_dev_lim(mdev, &dev_lim);
 604         if (err) {
 605                 mthca_err(mdev, "QUERY_DEV_LIM returned %d, aborting.\n", err);
 606                 goto err_stop_fw;
 607         }
 608
 609         profile = hca_profile;
 610         profile.num_uar  = dev_lim.uar_size / PAGE_SIZE;
 611         profile.num_udav = 0;
 612         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 613                 profile.num_srq = dev_lim.max_srqs;
 614
 615         icm_size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
 616         if (icm_size < 0) {
 617                 err = icm_size;
 618                 goto err_stop_fw;
 619         }
 620
 621         err = mthca_init_icm(mdev, &dev_lim, &init_hca, icm_size);
 622         if (err)
 623                 goto err_stop_fw;
 624
 625         err = mthca_INIT_HCA(mdev, &init_hca);
 626         if (err) {
 627                 mthca_err(mdev, "INIT_HCA command returned %d, aborting.\n", err);
 628                 goto err_free_icm;
 629         }
 630
 631         return 0;
 632
 633 err_free_icm:
 634         mthca_free_icms(mdev);
 635
 636 err_stop_fw:
 637         mthca_UNMAP_FA(mdev);
 638         mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
 639
 640 err_disable:
 641         if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
 642                 mthca_DISABLE_LAM(mdev);
 643
 644         return err;
 645 }
 646
 647 static void mthca_close_hca(struct mthca_dev *mdev)
 648 {
 649         mthca_CLOSE_HCA(mdev, 0);
 650
 651         if (mthca_is_memfree(mdev)) {
 652                 mthca_free_icms(mdev);
 653
 654                 mthca_UNMAP_FA(mdev);
 655                 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
 656
 657                 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
 658                         mthca_DISABLE_LAM(mdev);
 659         } else
 660                 mthca_SYS_DIS(mdev);
 661 }
 662
 663 static int mthca_init_hca(struct mthca_dev *mdev)
 664 {
 665         int err;
 666         struct mthca_adapter adapter;
 667
 668         if (mthca_is_memfree(mdev))
 669                 err = mthca_init_arbel(mdev);
 670         else
 671                 err = mthca_init_tavor(mdev);
 672
 673         if (err)
 674                 return err;
 675
 676         err = mthca_QUERY_ADAPTER(mdev, &adapter);
 677         if (err) {
 678                 mthca_err(mdev, "QUERY_ADAPTER command returned %d, aborting.\n", err);
 679                 goto err_close;
 680         }
 681
 682         mdev->eq_table.inta_pin = adapter.inta_pin;
 683         if (!mthca_is_memfree(mdev))
 684                 mdev->rev_id = adapter.revision_id;
 685         memcpy(mdev->board_id, adapter.board_id, sizeof mdev->board_id);
 686
 687         return 0;
 688
 689 err_close:
 690         mthca_close_hca(mdev);
 691         return err;
 692 }
 693
 694 static int mthca_setup_hca(struct mthca_dev *dev)
 695 {
 696         int err;
 697
 698         MTHCA_INIT_DOORBELL_LOCK(&dev->doorbell_lock);
 699
 700         err = mthca_init_uar_table(dev);
 701         if (err) {
 702                 mthca_err(dev, "Failed to initialize "
 703                           "user access region table, aborting.\n");
 704                 return err;
 705         }
 706
 707         err = mthca_uar_alloc(dev, &dev->driver_uar);
 708         if (err) {
 709                 mthca_err(dev, "Failed to allocate driver access region, "
 710                           "aborting.\n");
 711                 goto err_uar_table_free;
 712         }
 713
 714         dev->kar = ioremap((phys_addr_t) dev->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
 715         if (!dev->kar) {
 716                 mthca_err(dev, "Couldn't map kernel access region, "
 717                           "aborting.\n");
 718                 err = -ENOMEM;
 719                 goto err_uar_free;
 720         }
 721
 722         err = mthca_init_pd_table(dev);
 723         if (err) {
 724                 mthca_err(dev, "Failed to initialize "
 725                           "protection domain table, aborting.\n");
 726                 goto err_kar_unmap;
 727         }
 728
 729         err = mthca_init_mr_table(dev);
 730         if (err) {
 731                 mthca_err(dev, "Failed to initialize "
 732                           "memory region table, aborting.\n");
 733                 goto err_pd_table_free;
 734         }
 735
 736         err = mthca_pd_alloc(dev, 1, &dev->driver_pd);
 737         if (err) {
 738                 mthca_err(dev, "Failed to create driver PD, "
 739                           "aborting.\n");
 740                 goto err_mr_table_free;
 741         }
 742
 743         err = mthca_init_eq_table(dev);
 744         if (err) {
 745                 mthca_err(dev, "Failed to initialize "
 746                           "event queue table, aborting.\n");
 747                 goto err_pd_free;
 748         }
 749
 750         err = mthca_cmd_use_events(dev);
 751         if (err) {
 752                 mthca_err(dev, "Failed to switch to event-driven "
 753                           "firmware commands, aborting.\n");
 754                 goto err_eq_table_free;
 755         }
 756
 757         err = mthca_NOP(dev);
 758         if (err) {
 759                 if (dev->mthca_flags & MTHCA_FLAG_MSI_X) {
 760                         mthca_warn(dev, "NOP command failed to generate interrupt "
 761                                    "(IRQ %d).\n",
 762                                    dev->eq_table.eq[MTHCA_EQ_CMD].msi_x_vector);
 763                         mthca_warn(dev, "Trying again with MSI-X disabled.\n");
 764                 } else {
 765                         mthca_err(dev, "NOP command failed to generate interrupt "
 766                                   "(IRQ %d), aborting.\n",
 767                                   dev->pdev->irq);
 768                         mthca_err(dev, "BIOS or ACPI interrupt routing problem?\n");
 769                 }
 770
 771                 goto err_cmd_poll;
 772         }
 773
 774         mthca_dbg(dev, "NOP command IRQ test passed\n");
 775
 776         err = mthca_init_cq_table(dev);
 777         if (err) {
 778                 mthca_err(dev, "Failed to initialize "
 779                           "completion queue table, aborting.\n");
 780                 goto err_cmd_poll;
 781         }
 782
 783         err = mthca_init_srq_table(dev);
 784         if (err) {
 785                 mthca_err(dev, "Failed to initialize "
 786                           "shared receive queue table, aborting.\n");
 787                 goto err_cq_table_free;
 788         }
 789
 790         err = mthca_init_qp_table(dev);
 791         if (err) {
 792                 mthca_err(dev, "Failed to initialize "
 793                           "queue pair table, aborting.\n");
 794                 goto err_srq_table_free;
 795         }
 796
 797         err = mthca_init_av_table(dev);
 798         if (err) {
 799                 mthca_err(dev, "Failed to initialize "
 800                           "address vector table, aborting.\n");
 801                 goto err_qp_table_free;
 802         }
 803
 804         err = mthca_init_mcg_table(dev);
 805         if (err) {
 806                 mthca_err(dev, "Failed to initialize "
 807                           "multicast group table, aborting.\n");
 808                 goto err_av_table_free;
 809         }
 810
 811         return 0;
 812
 813 err_av_table_free:
 814         mthca_cleanup_av_table(dev);
 815
 816 err_qp_table_free:
 817         mthca_cleanup_qp_table(dev);
 818
 819 err_srq_table_free:
 820         mthca_cleanup_srq_table(dev);
 821
 822 err_cq_table_free:
 823         mthca_cleanup_cq_table(dev);
 824
 825 err_cmd_poll:
 826         mthca_cmd_use_polling(dev);
 827
 828 err_eq_table_free:
 829         mthca_cleanup_eq_table(dev);
 830
 831 err_pd_free:
 832         mthca_pd_free(dev, &dev->driver_pd);
 833
 834 err_mr_table_free:
 835         mthca_cleanup_mr_table(dev);
 836
 837 err_pd_table_free:
 838         mthca_cleanup_pd_table(dev);
 839
 840 err_kar_unmap:
 841         iounmap(dev->kar);
 842
 843 err_uar_free:
 844         mthca_uar_free(dev, &dev->driver_uar);
 845
 846 err_uar_table_free:
 847         mthca_cleanup_uar_table(dev);
 848         return err;
 849 }
 850
 851 static int mthca_enable_msi_x(struct mthca_dev *mdev)
 852 {
 853         int err;
 854
 855         err = pci_alloc_irq_vectors(mdev->pdev, 3, 3, PCI_IRQ_MSIX);
 856         if (err < 0)
 857                 return err;
 858
 859         mdev->eq_table.eq[MTHCA_EQ_COMP ].msi_x_vector =
 860                         pci_irq_vector(mdev->pdev, 0);
 861         mdev->eq_table.eq[MTHCA_EQ_ASYNC].msi_x_vector =
 862                         pci_irq_vector(mdev->pdev, 1);
 863         mdev->eq_table.eq[MTHCA_EQ_CMD  ].msi_x_vector =
 864                         pci_irq_vector(mdev->pdev, 2);
 865
 866         return 0;
 867 }
 868
 869 /* Types of supported HCA */
 870 enum {
 871         TAVOR,                  /* MT23108                        */
 872         ARBEL_COMPAT,           /* MT25208 in Tavor compat mode   */
 873         ARBEL_NATIVE,           /* MT25208 with extended features */
 874         SINAI                   /* MT25204 */
 875 };
 876
 877 #define MTHCA_FW_VER(major, minor, subminor) \
 878         (((u64) (major) << 32) | ((u64) (minor) << 16) | (u64) (subminor))
 879
 880 static struct {
 881         u64 latest_fw;
 882         u32 flags;
 883 } mthca_hca_table[] = {
 884         [TAVOR]        = { .latest_fw = MTHCA_FW_VER(3, 5, 0),
 885                            .flags     = 0 },
 886         [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 8, 200),
 887                            .flags     = MTHCA_FLAG_PCIE },
 888         [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 3, 0),
 889                            .flags     = MTHCA_FLAG_MEMFREE |
 890                                         MTHCA_FLAG_PCIE },
 891         [SINAI]        = { .latest_fw = MTHCA_FW_VER(1, 2, 0),
 892                            .flags     = MTHCA_FLAG_MEMFREE |
 893                                         MTHCA_FLAG_PCIE    |
 894                                         MTHCA_FLAG_SINAI_OPT }
 895 };
 896
 897 static int __mthca_init_one(struct pci_dev *pdev, int hca_type)
 898 {
 899         int ddr_hidden = 0;
 900         int err;
 901         struct mthca_dev *mdev;
 902
 903         printk(KERN_INFO PFX "Initializing %s\n",
 904                pci_name(pdev));
 905
 906         err = pci_enable_device(pdev);
 907         if (err) {
 908                 dev_err(&pdev->dev, "Cannot enable PCI device, "
 909                         "aborting.\n");
 910                 return err;
 911         }
 912
 913         /*
 914          * Check for BARs.  We expect 0: 1MB, 2: 8MB, 4: DDR (may not
 915          * be present)
 916          */
 917         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) ||
 918             pci_resource_len(pdev, 0) != 1 << 20) {
 919                 dev_err(&pdev->dev, "Missing DCS, aborting.\n");
 920                 err = -ENODEV;
 921                 goto err_disable_pdev;
 922         }
 923         if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
 924                 dev_err(&pdev->dev, "Missing UAR, aborting.\n");
 925                 err = -ENODEV;
 926                 goto err_disable_pdev;
 927         }
 928         if (!(pci_resource_flags(pdev, 4) & IORESOURCE_MEM))
 929                 ddr_hidden = 1;
 930
 931         err = pci_request_regions(pdev, DRV_NAME);
 932         if (err) {
 933                 dev_err(&pdev->dev, "Cannot obtain PCI resources, "
 934                         "aborting.\n");
 935                 goto err_disable_pdev;
 936         }
 937
 938         pci_set_master(pdev);
 939
 940         err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
 941         if (err) {
 942                 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n");
 943                 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
 944                 if (err) {
 945                         dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n");
 946                         goto err_free_res;
 947                 }
 948         }
 949         err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
 950         if (err) {
 951                 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit "
 952                          "consistent PCI DMA mask.\n");
 953                 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
 954                 if (err) {
 955                         dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
 956                                 "aborting.\n");
 957                         goto err_free_res;
 958                 }
 959         }
 960
 961         /* We can handle large RDMA requests, so allow larger segments. */
 962         dma_set_max_seg_size(&pdev->dev, 1024 * 1024 * 1024);
 963
 964         mdev = (struct mthca_dev *) ib_alloc_device(sizeof *mdev);
 965         if (!mdev) {
 966                 dev_err(&pdev->dev, "Device struct alloc failed, "
 967                         "aborting.\n");
 968                 err = -ENOMEM;
 969                 goto err_free_res;
 970         }
 971
 972         mdev->pdev = pdev;
 973
 974         mdev->mthca_flags = mthca_hca_table[hca_type].flags;
 975         if (ddr_hidden)
 976                 mdev->mthca_flags |= MTHCA_FLAG_DDR_HIDDEN;
 977
 978         /*
 979          * Now reset the HCA before we touch the PCI capabilities or
 980          * attempt a firmware command, since a boot ROM may have left
 981          * the HCA in an undefined state.
 982          */
 983         err = mthca_reset(mdev);
 984         if (err) {
 985                 mthca_err(mdev, "Failed to reset HCA, aborting.\n");
 986                 goto err_free_dev;
 987         }
 988
 989         err = mthca_cmd_init(mdev);
 990         if (err) {
 991                 mthca_err(mdev, "Failed to init command interface, aborting.\n");
 992                 goto err_free_dev;
 993         }
 994
 995         err = mthca_tune_pci(mdev);
 996         if (err)
 997                 goto err_cmd;
 998
 999         err = mthca_init_hca(mdev);
1000         if (err)
1001                 goto err_cmd;
1002
1003         if (mdev->fw_ver < mthca_hca_table[hca_type].latest_fw) {
1004                 mthca_warn(mdev, "HCA FW version %d.%d.%03d is old (%d.%d.%03d is current).\n",
1005                            (int) (mdev->fw_ver >> 32), (int) (mdev->fw_ver >> 16) & 0xffff,
1006                            (int) (mdev->fw_ver & 0xffff),
1007                            (int) (mthca_hca_table[hca_type].latest_fw >> 32),
1008                            (int) (mthca_hca_table[hca_type].latest_fw >> 16) & 0xffff,
1009                            (int) (mthca_hca_table[hca_type].latest_fw & 0xffff));
1010                 mthca_warn(mdev, "If you have problems, try updating your HCA FW.\n");
1011         }
1012
1013         if (msi_x && !mthca_enable_msi_x(mdev))
1014                 mdev->mthca_flags |= MTHCA_FLAG_MSI_X;
1015
1016         err = mthca_setup_hca(mdev);
1017         if (err == -EBUSY && (mdev->mthca_flags & MTHCA_FLAG_MSI_X)) {
1018                 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1019                         pci_free_irq_vectors(pdev);
1020                 mdev->mthca_flags &= ~MTHCA_FLAG_MSI_X;
1021
1022                 err = mthca_setup_hca(mdev);
1023         }
1024
1025         if (err)
1026                 goto err_close;
1027
1028         err = mthca_register_device(mdev);
1029         if (err)
1030                 goto err_cleanup;
1031
1032         err = mthca_create_agents(mdev);
1033         if (err)
1034                 goto err_unregister;
1035
1036         pci_set_drvdata(pdev, mdev);
1037         mdev->hca_type = hca_type;
1038
1039         mdev->active = true;
1040
1041         return 0;
1042
1043 err_unregister:
1044         mthca_unregister_device(mdev);
1045
1046 err_cleanup:
1047         mthca_cleanup_mcg_table(mdev);
1048         mthca_cleanup_av_table(mdev);
1049         mthca_cleanup_qp_table(mdev);
1050         mthca_cleanup_srq_table(mdev);
1051         mthca_cleanup_cq_table(mdev);
1052         mthca_cmd_use_polling(mdev);
1053         mthca_cleanup_eq_table(mdev);
1054
1055         mthca_pd_free(mdev, &mdev->driver_pd);
1056
1057         mthca_cleanup_mr_table(mdev);
1058         mthca_cleanup_pd_table(mdev);
1059         mthca_cleanup_uar_table(mdev);
1060
1061 err_close:
1062         if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1063                 pci_free_irq_vectors(pdev);
1064
1065         mthca_close_hca(mdev);
1066
1067 err_cmd:
1068         mthca_cmd_cleanup(mdev);
1069
1070 err_free_dev:
1071         ib_dealloc_device(&mdev->ib_dev);
1072
1073 err_free_res:
1074         pci_release_regions(pdev);
1075
1076 err_disable_pdev:
1077         pci_disable_device(pdev);
1078         pci_set_drvdata(pdev, NULL);
1079         return err;
1080 }
1081
1082 static void __mthca_remove_one(struct pci_dev *pdev)
1083 {
1084         struct mthca_dev *mdev = pci_get_drvdata(pdev);
1085         int p;
1086
1087         if (mdev) {
1088                 mthca_free_agents(mdev);
1089                 mthca_unregister_device(mdev);
1090
1091                 for (p = 1; p <= mdev->limits.num_ports; ++p)
1092                         mthca_CLOSE_IB(mdev, p);
1093
1094                 mthca_cleanup_mcg_table(mdev);
1095                 mthca_cleanup_av_table(mdev);
1096                 mthca_cleanup_qp_table(mdev);
1097                 mthca_cleanup_srq_table(mdev);
1098                 mthca_cleanup_cq_table(mdev);
1099                 mthca_cmd_use_polling(mdev);
1100                 mthca_cleanup_eq_table(mdev);
1101
1102                 mthca_pd_free(mdev, &mdev->driver_pd);
1103
1104                 mthca_cleanup_mr_table(mdev);
1105                 mthca_cleanup_pd_table(mdev);
1106
1107                 iounmap(mdev->kar);
1108                 mthca_uar_free(mdev, &mdev->driver_uar);
1109                 mthca_cleanup_uar_table(mdev);
1110                 mthca_close_hca(mdev);
1111                 mthca_cmd_cleanup(mdev);
1112
1113                 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1114                         pci_free_irq_vectors(pdev);
1115
1116                 ib_dealloc_device(&mdev->ib_dev);
1117                 pci_release_regions(pdev);
1118                 pci_disable_device(pdev);
1119                 pci_set_drvdata(pdev, NULL);
1120         }
1121 }
1122
1123 int __mthca_restart_one(struct pci_dev *pdev)
1124 {
1125         struct mthca_dev *mdev;
1126         int hca_type;
1127
1128         mdev = pci_get_drvdata(pdev);
1129         if (!mdev)
1130                 return -ENODEV;
1131         hca_type = mdev->hca_type;
1132         __mthca_remove_one(pdev);
1133         return __mthca_init_one(pdev, hca_type);
1134 }
1135
1136 static int mthca_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
1137 {
1138         int ret;
1139
1140         mutex_lock(&mthca_device_mutex);
1141
1142         printk_once(KERN_INFO "%s", mthca_version);
1143
1144         if (id->driver_data >= ARRAY_SIZE(mthca_hca_table)) {
1145                 printk(KERN_ERR PFX "%s has invalid driver data %lx\n",
1146                        pci_name(pdev), id->driver_data);
1147                 mutex_unlock(&mthca_device_mutex);
1148                 return -ENODEV;
1149         }
1150
1151         ret = __mthca_init_one(pdev, id->driver_data);
1152
1153         mutex_unlock(&mthca_device_mutex);
1154
1155         return ret;
1156 }
1157
1158 static void mthca_remove_one(struct pci_dev *pdev)
1159 {
1160         mutex_lock(&mthca_device_mutex);
1161         __mthca_remove_one(pdev);
1162         mutex_unlock(&mthca_device_mutex);
1163 }
1164
1165 static const struct pci_device_id mthca_pci_table[] = {
1166         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR),
1167           .driver_data = TAVOR },
1168         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_TAVOR),
1169           .driver_data = TAVOR },
1170         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1171           .driver_data = ARBEL_COMPAT },
1172         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1173           .driver_data = ARBEL_COMPAT },
1174         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL),
1175           .driver_data = ARBEL_NATIVE },
1176         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL),
1177           .driver_data = ARBEL_NATIVE },
1178         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI),
1179           .driver_data = SINAI },
1180         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI),
1181           .driver_data = SINAI },
1182         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1183           .driver_data = SINAI },
1184         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1185           .driver_data = SINAI },
1186         { 0, }
1187 };
1188
1189 MODULE_DEVICE_TABLE(pci, mthca_pci_table);
1190
1191 static struct pci_driver mthca_driver = {
1192         .name           = DRV_NAME,
1193         .id_table       = mthca_pci_table,
1194         .probe          = mthca_init_one,
1195         .remove         = mthca_remove_one,
1196 };
1197
1198 static void __init __mthca_check_profile_val(const char *name, int *pval,
1199                                              int pval_default)
1200 {
1201         /* value must be positive and power of 2 */
1202         int old_pval = *pval;
1203
1204         if (old_pval <= 0)
1205                 *pval = pval_default;
1206         else
1207                 *pval = roundup_pow_of_two(old_pval);
1208
1209         if (old_pval != *pval) {
1210                 printk(KERN_WARNING PFX "Invalid value %d for %s in module parameter.\n",
1211                        old_pval, name);
1212                 printk(KERN_WARNING PFX "Corrected %s to %d.\n", name, *pval);
1213         }
1214 }
1215
1216 #define mthca_check_profile_val(name, default)                          \
1217         __mthca_check_profile_val(#name, &hca_profile.name, default)
1218
1219 static void __init mthca_validate_profile(void)
1220 {
1221         mthca_check_profile_val(num_qp,            MTHCA_DEFAULT_NUM_QP);
1222         mthca_check_profile_val(rdb_per_qp,        MTHCA_DEFAULT_RDB_PER_QP);
1223         mthca_check_profile_val(num_cq,            MTHCA_DEFAULT_NUM_CQ);
1224         mthca_check_profile_val(num_mcg,           MTHCA_DEFAULT_NUM_MCG);
1225         mthca_check_profile_val(num_mpt,           MTHCA_DEFAULT_NUM_MPT);
1226         mthca_check_profile_val(num_mtt,           MTHCA_DEFAULT_NUM_MTT);
1227         mthca_check_profile_val(num_udav,          MTHCA_DEFAULT_NUM_UDAV);
1228         mthca_check_profile_val(fmr_reserved_mtts, MTHCA_DEFAULT_NUM_RESERVED_MTTS);
1229
1230         if (hca_profile.fmr_reserved_mtts >= hca_profile.num_mtt) {
1231                 printk(KERN_WARNING PFX "Invalid fmr_reserved_mtts module parameter %d.\n",
1232                        hca_profile.fmr_reserved_mtts);
1233                 printk(KERN_WARNING PFX "(Must be smaller than num_mtt %d)\n",
1234                        hca_profile.num_mtt);
1235                 hca_profile.fmr_reserved_mtts = hca_profile.num_mtt / 2;
1236                 printk(KERN_WARNING PFX "Corrected fmr_reserved_mtts to %d.\n",
1237                        hca_profile.fmr_reserved_mtts);
1238         }
1239
1240         if ((log_mtts_per_seg < 1) || (log_mtts_per_seg > 5)) {
1241                 printk(KERN_WARNING PFX "bad log_mtts_per_seg (%d). Using default - %d\n",
1242                        log_mtts_per_seg, ilog2(MTHCA_MTT_SEG_SIZE / 8));
1243                 log_mtts_per_seg = ilog2(MTHCA_MTT_SEG_SIZE / 8);
1244         }
1245 }
1246
1247 static int __init mthca_init(void)
1248 {
1249         int ret;
1250
1251         mthca_validate_profile();
1252
1253         ret = mthca_catas_init();
1254         if (ret)
1255                 return ret;
1256
1257         ret = pci_register_driver(&mthca_driver);
1258         if (ret < 0) {
1259                 mthca_catas_cleanup();
1260                 return ret;
1261         }
1262
1263         return 0;
1264 }
1265
1266 static void __exit mthca_cleanup(void)
1267 {
1268         pci_unregister_driver(&mthca_driver);
1269         mthca_catas_cleanup();
1270 }
1271
1272 module_init(mthca_init);
1273 module_exit(mthca_cleanup);