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_find_capability(mdev->pdev, PCI_CAP_ID_EXP)) {
 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         u8 status;
 169
 170         mdev->limits.mtt_seg_size = (1 << log_mtts_per_seg) * 8;
 171         err = mthca_QUERY_DEV_LIM(mdev, dev_lim, &status);
 172         if (err) {
 173                 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
 174                 return err;
 175         }
 176         if (status) {
 177                 mthca_err(mdev, "QUERY_DEV_LIM returned status 0x%02x, "
 178                           "aborting.\n", status);
 179                 return -EINVAL;
 180         }
 181         if (dev_lim->min_page_sz > PAGE_SIZE) {
 182                 mthca_err(mdev, "HCA minimum page size of %d bigger than "
 183                           "kernel PAGE_SIZE of %ld, aborting.\n",
 184                           dev_lim->min_page_sz, PAGE_SIZE);
 185                 return -ENODEV;
 186         }
 187         if (dev_lim->num_ports > MTHCA_MAX_PORTS) {
 188                 mthca_err(mdev, "HCA has %d ports, but we only support %d, "
 189                           "aborting.\n",
 190                           dev_lim->num_ports, MTHCA_MAX_PORTS);
 191                 return -ENODEV;
 192         }
 193
 194         if (dev_lim->uar_size > pci_resource_len(mdev->pdev, 2)) {
 195                 mthca_err(mdev, "HCA reported UAR size of 0x%x bigger than "
 196                           "PCI resource 2 size of 0x%llx, aborting.\n",
 197                           dev_lim->uar_size,
 198                           (unsigned long long)pci_resource_len(mdev->pdev, 2));
 199                 return -ENODEV;
 200         }
 201
 202         mdev->limits.num_ports          = dev_lim->num_ports;
 203         mdev->limits.vl_cap             = dev_lim->max_vl;
 204         mdev->limits.mtu_cap            = dev_lim->max_mtu;
 205         mdev->limits.gid_table_len      = dev_lim->max_gids;
 206         mdev->limits.pkey_table_len     = dev_lim->max_pkeys;
 207         mdev->limits.local_ca_ack_delay = dev_lim->local_ca_ack_delay;
 208         /*
 209          * Need to allow for worst case send WQE overhead and check
 210          * whether max_desc_sz imposes a lower limit than max_sg; UD
 211          * send has the biggest overhead.
 212          */
 213         mdev->limits.max_sg             = min_t(int, dev_lim->max_sg,
 214                                               (dev_lim->max_desc_sz -
 215                                                sizeof (struct mthca_next_seg) -
 216                                                (mthca_is_memfree(mdev) ?
 217                                                 sizeof (struct mthca_arbel_ud_seg) :
 218                                                 sizeof (struct mthca_tavor_ud_seg))) /
 219                                                 sizeof (struct mthca_data_seg));
 220         mdev->limits.max_wqes           = dev_lim->max_qp_sz;
 221         mdev->limits.max_qp_init_rdma   = dev_lim->max_requester_per_qp;
 222         mdev->limits.reserved_qps       = dev_lim->reserved_qps;
 223         mdev->limits.max_srq_wqes       = dev_lim->max_srq_sz;
 224         mdev->limits.reserved_srqs      = dev_lim->reserved_srqs;
 225         mdev->limits.reserved_eecs      = dev_lim->reserved_eecs;
 226         mdev->limits.max_desc_sz        = dev_lim->max_desc_sz;
 227         mdev->limits.max_srq_sge        = mthca_max_srq_sge(mdev);
 228         /*
 229          * Subtract 1 from the limit because we need to allocate a
 230          * spare CQE so the HCA HW can tell the difference between an
 231          * empty CQ and a full CQ.
 232          */
 233         mdev->limits.max_cqes           = dev_lim->max_cq_sz - 1;
 234         mdev->limits.reserved_cqs       = dev_lim->reserved_cqs;
 235         mdev->limits.reserved_eqs       = dev_lim->reserved_eqs;
 236         mdev->limits.reserved_mtts      = dev_lim->reserved_mtts;
 237         mdev->limits.reserved_mrws      = dev_lim->reserved_mrws;
 238         mdev->limits.reserved_uars      = dev_lim->reserved_uars;
 239         mdev->limits.reserved_pds       = dev_lim->reserved_pds;
 240         mdev->limits.port_width_cap     = dev_lim->max_port_width;
 241         mdev->limits.page_size_cap      = ~(u32) (dev_lim->min_page_sz - 1);
 242         mdev->limits.flags              = dev_lim->flags;
 243         /*
 244          * For old FW that doesn't return static rate support, use a
 245          * value of 0x3 (only static rate values of 0 or 1 are handled),
 246          * except on Sinai, where even old FW can handle static rate
 247          * values of 2 and 3.
 248          */
 249         if (dev_lim->stat_rate_support)
 250                 mdev->limits.stat_rate_support = dev_lim->stat_rate_support;
 251         else if (mdev->mthca_flags & MTHCA_FLAG_SINAI_OPT)
 252                 mdev->limits.stat_rate_support = 0xf;
 253         else
 254                 mdev->limits.stat_rate_support = 0x3;
 255
 256         /* IB_DEVICE_RESIZE_MAX_WR not supported by driver.
 257            May be doable since hardware supports it for SRQ.
 258
 259            IB_DEVICE_N_NOTIFY_CQ is supported by hardware but not by driver.
 260
 261            IB_DEVICE_SRQ_RESIZE is supported by hardware but SRQ is not
 262            supported by driver. */
 263         mdev->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT |
 264                 IB_DEVICE_PORT_ACTIVE_EVENT |
 265                 IB_DEVICE_SYS_IMAGE_GUID |
 266                 IB_DEVICE_RC_RNR_NAK_GEN;
 267
 268         if (dev_lim->flags & DEV_LIM_FLAG_BAD_PKEY_CNTR)
 269                 mdev->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR;
 270
 271         if (dev_lim->flags & DEV_LIM_FLAG_BAD_QKEY_CNTR)
 272                 mdev->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR;
 273
 274         if (dev_lim->flags & DEV_LIM_FLAG_RAW_MULTI)
 275                 mdev->device_cap_flags |= IB_DEVICE_RAW_MULTI;
 276
 277         if (dev_lim->flags & DEV_LIM_FLAG_AUTO_PATH_MIG)
 278                 mdev->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG;
 279
 280         if (dev_lim->flags & DEV_LIM_FLAG_UD_AV_PORT_ENFORCE)
 281                 mdev->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE;
 282
 283         if (dev_lim->flags & DEV_LIM_FLAG_SRQ)
 284                 mdev->mthca_flags |= MTHCA_FLAG_SRQ;
 285
 286         if (mthca_is_memfree(mdev))
 287                 if (dev_lim->flags & DEV_LIM_FLAG_IPOIB_CSUM)
 288                         mdev->device_cap_flags |= IB_DEVICE_UD_IP_CSUM;
 289
 290         return 0;
 291 }
 292
 293 static int mthca_init_tavor(struct mthca_dev *mdev)
 294 {
 295         s64 size;
 296         u8 status;
 297         int err;
 298         struct mthca_dev_lim        dev_lim;
 299         struct mthca_profile        profile;
 300         struct mthca_init_hca_param init_hca;
 301
 302         err = mthca_SYS_EN(mdev, &status);
 303         if (err) {
 304                 mthca_err(mdev, "SYS_EN command failed, aborting.\n");
 305                 return err;
 306         }
 307         if (status) {
 308                 mthca_err(mdev, "SYS_EN returned status 0x%02x, "
 309                           "aborting.\n", status);
 310                 return -EINVAL;
 311         }
 312
 313         err = mthca_QUERY_FW(mdev, &status);
 314         if (err) {
 315                 mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
 316                 goto err_disable;
 317         }
 318         if (status) {
 319                 mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
 320                           "aborting.\n", status);
 321                 err = -EINVAL;
 322                 goto err_disable;
 323         }
 324         err = mthca_QUERY_DDR(mdev, &status);
 325         if (err) {
 326                 mthca_err(mdev, "QUERY_DDR command failed, aborting.\n");
 327                 goto err_disable;
 328         }
 329         if (status) {
 330                 mthca_err(mdev, "QUERY_DDR returned status 0x%02x, "
 331                           "aborting.\n", status);
 332                 err = -EINVAL;
 333                 goto err_disable;
 334         }
 335
 336         err = mthca_dev_lim(mdev, &dev_lim);
 337         if (err) {
 338                 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
 339                 goto err_disable;
 340         }
 341
 342         profile = hca_profile;
 343         profile.num_uar   = dev_lim.uar_size / PAGE_SIZE;
 344         profile.uarc_size = 0;
 345         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 346                 profile.num_srq = dev_lim.max_srqs;
 347
 348         size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
 349         if (size < 0) {
 350                 err = size;
 351                 goto err_disable;
 352         }
 353
 354         err = mthca_INIT_HCA(mdev, &init_hca, &status);
 355         if (err) {
 356                 mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
 357                 goto err_disable;
 358         }
 359         if (status) {
 360                 mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
 361                           "aborting.\n", status);
 362                 err = -EINVAL;
 363                 goto err_disable;
 364         }
 365
 366         return 0;
 367
 368 err_disable:
 369         mthca_SYS_DIS(mdev, &status);
 370
 371         return err;
 372 }
 373
 374 static int mthca_load_fw(struct mthca_dev *mdev)
 375 {
 376         u8 status;
 377         int err;
 378
 379         /* FIXME: use HCA-attached memory for FW if present */
 380
 381         mdev->fw.arbel.fw_icm =
 382                 mthca_alloc_icm(mdev, mdev->fw.arbel.fw_pages,
 383                                 GFP_HIGHUSER | __GFP_NOWARN, 0);
 384         if (!mdev->fw.arbel.fw_icm) {
 385                 mthca_err(mdev, "Couldn't allocate FW area, aborting.\n");
 386                 return -ENOMEM;
 387         }
 388
 389         err = mthca_MAP_FA(mdev, mdev->fw.arbel.fw_icm, &status);
 390         if (err) {
 391                 mthca_err(mdev, "MAP_FA command failed, aborting.\n");
 392                 goto err_free;
 393         }
 394         if (status) {
 395                 mthca_err(mdev, "MAP_FA returned status 0x%02x, aborting.\n", status);
 396                 err = -EINVAL;
 397                 goto err_free;
 398         }
 399         err = mthca_RUN_FW(mdev, &status);
 400         if (err) {
 401                 mthca_err(mdev, "RUN_FW command failed, aborting.\n");
 402                 goto err_unmap_fa;
 403         }
 404         if (status) {
 405                 mthca_err(mdev, "RUN_FW returned status 0x%02x, aborting.\n", status);
 406                 err = -EINVAL;
 407                 goto err_unmap_fa;
 408         }
 409
 410         return 0;
 411
 412 err_unmap_fa:
 413         mthca_UNMAP_FA(mdev, &status);
 414
 415 err_free:
 416         mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
 417         return err;
 418 }
 419
 420 static int mthca_init_icm(struct mthca_dev *mdev,
 421                           struct mthca_dev_lim *dev_lim,
 422                           struct mthca_init_hca_param *init_hca,
 423                           u64 icm_size)
 424 {
 425         u64 aux_pages;
 426         u8 status;
 427         int err;
 428
 429         err = mthca_SET_ICM_SIZE(mdev, icm_size, &aux_pages, &status);
 430         if (err) {
 431                 mthca_err(mdev, "SET_ICM_SIZE command failed, aborting.\n");
 432                 return err;
 433         }
 434         if (status) {
 435                 mthca_err(mdev, "SET_ICM_SIZE returned status 0x%02x, "
 436                           "aborting.\n", status);
 437                 return -EINVAL;
 438         }
 439
 440         mthca_dbg(mdev, "%lld KB of HCA context requires %lld KB aux memory.\n",
 441                   (unsigned long long) icm_size >> 10,
 442                   (unsigned long long) aux_pages << 2);
 443
 444         mdev->fw.arbel.aux_icm = mthca_alloc_icm(mdev, aux_pages,
 445                                                  GFP_HIGHUSER | __GFP_NOWARN, 0);
 446         if (!mdev->fw.arbel.aux_icm) {
 447                 mthca_err(mdev, "Couldn't allocate aux memory, aborting.\n");
 448                 return -ENOMEM;
 449         }
 450
 451         err = mthca_MAP_ICM_AUX(mdev, mdev->fw.arbel.aux_icm, &status);
 452         if (err) {
 453                 mthca_err(mdev, "MAP_ICM_AUX command failed, aborting.\n");
 454                 goto err_free_aux;
 455         }
 456         if (status) {
 457                 mthca_err(mdev, "MAP_ICM_AUX returned status 0x%02x, aborting.\n", status);
 458                 err = -EINVAL;
 459                 goto err_free_aux;
 460         }
 461
 462         err = mthca_map_eq_icm(mdev, init_hca->eqc_base);
 463         if (err) {
 464                 mthca_err(mdev, "Failed to map EQ context memory, aborting.\n");
 465                 goto err_unmap_aux;
 466         }
 467
 468         /* CPU writes to non-reserved MTTs, while HCA might DMA to reserved mtts */
 469         mdev->limits.reserved_mtts = ALIGN(mdev->limits.reserved_mtts * mdev->limits.mtt_seg_size,
 470                                            dma_get_cache_alignment()) / mdev->limits.mtt_seg_size;
 471
 472         mdev->mr_table.mtt_table = mthca_alloc_icm_table(mdev, init_hca->mtt_base,
 473                                                          mdev->limits.mtt_seg_size,
 474                                                          mdev->limits.num_mtt_segs,
 475                                                          mdev->limits.reserved_mtts,
 476                                                          1, 0);
 477         if (!mdev->mr_table.mtt_table) {
 478                 mthca_err(mdev, "Failed to map MTT context memory, aborting.\n");
 479                 err = -ENOMEM;
 480                 goto err_unmap_eq;
 481         }
 482
 483         mdev->mr_table.mpt_table = mthca_alloc_icm_table(mdev, init_hca->mpt_base,
 484                                                          dev_lim->mpt_entry_sz,
 485                                                          mdev->limits.num_mpts,
 486                                                          mdev->limits.reserved_mrws,
 487                                                          1, 1);
 488         if (!mdev->mr_table.mpt_table) {
 489                 mthca_err(mdev, "Failed to map MPT context memory, aborting.\n");
 490                 err = -ENOMEM;
 491                 goto err_unmap_mtt;
 492         }
 493
 494         mdev->qp_table.qp_table = mthca_alloc_icm_table(mdev, init_hca->qpc_base,
 495                                                         dev_lim->qpc_entry_sz,
 496                                                         mdev->limits.num_qps,
 497                                                         mdev->limits.reserved_qps,
 498                                                         0, 0);
 499         if (!mdev->qp_table.qp_table) {
 500                 mthca_err(mdev, "Failed to map QP context memory, aborting.\n");
 501                 err = -ENOMEM;
 502                 goto err_unmap_mpt;
 503         }
 504
 505         mdev->qp_table.eqp_table = mthca_alloc_icm_table(mdev, init_hca->eqpc_base,
 506                                                          dev_lim->eqpc_entry_sz,
 507                                                          mdev->limits.num_qps,
 508                                                          mdev->limits.reserved_qps,
 509                                                          0, 0);
 510         if (!mdev->qp_table.eqp_table) {
 511                 mthca_err(mdev, "Failed to map EQP context memory, aborting.\n");
 512                 err = -ENOMEM;
 513                 goto err_unmap_qp;
 514         }
 515
 516         mdev->qp_table.rdb_table = mthca_alloc_icm_table(mdev, init_hca->rdb_base,
 517                                                          MTHCA_RDB_ENTRY_SIZE,
 518                                                          mdev->limits.num_qps <<
 519                                                          mdev->qp_table.rdb_shift, 0,
 520                                                          0, 0);
 521         if (!mdev->qp_table.rdb_table) {
 522                 mthca_err(mdev, "Failed to map RDB context memory, aborting\n");
 523                 err = -ENOMEM;
 524                 goto err_unmap_eqp;
 525         }
 526
 527        mdev->cq_table.table = mthca_alloc_icm_table(mdev, init_hca->cqc_base,
 528                                                     dev_lim->cqc_entry_sz,
 529                                                     mdev->limits.num_cqs,
 530                                                     mdev->limits.reserved_cqs,
 531                                                     0, 0);
 532         if (!mdev->cq_table.table) {
 533                 mthca_err(mdev, "Failed to map CQ context memory, aborting.\n");
 534                 err = -ENOMEM;
 535                 goto err_unmap_rdb;
 536         }
 537
 538         if (mdev->mthca_flags & MTHCA_FLAG_SRQ) {
 539                 mdev->srq_table.table =
 540                         mthca_alloc_icm_table(mdev, init_hca->srqc_base,
 541                                               dev_lim->srq_entry_sz,
 542                                               mdev->limits.num_srqs,
 543                                               mdev->limits.reserved_srqs,
 544                                               0, 0);
 545                 if (!mdev->srq_table.table) {
 546                         mthca_err(mdev, "Failed to map SRQ context memory, "
 547                                   "aborting.\n");
 548                         err = -ENOMEM;
 549                         goto err_unmap_cq;
 550                 }
 551         }
 552
 553         /*
 554          * It's not strictly required, but for simplicity just map the
 555          * whole multicast group table now.  The table isn't very big
 556          * and it's a lot easier than trying to track ref counts.
 557          */
 558         mdev->mcg_table.table = mthca_alloc_icm_table(mdev, init_hca->mc_base,
 559                                                       MTHCA_MGM_ENTRY_SIZE,
 560                                                       mdev->limits.num_mgms +
 561                                                       mdev->limits.num_amgms,
 562                                                       mdev->limits.num_mgms +
 563                                                       mdev->limits.num_amgms,
 564                                                       0, 0);
 565         if (!mdev->mcg_table.table) {
 566                 mthca_err(mdev, "Failed to map MCG context memory, aborting.\n");
 567                 err = -ENOMEM;
 568                 goto err_unmap_srq;
 569         }
 570
 571         return 0;
 572
 573 err_unmap_srq:
 574         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 575                 mthca_free_icm_table(mdev, mdev->srq_table.table);
 576
 577 err_unmap_cq:
 578         mthca_free_icm_table(mdev, mdev->cq_table.table);
 579
 580 err_unmap_rdb:
 581         mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
 582
 583 err_unmap_eqp:
 584         mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
 585
 586 err_unmap_qp:
 587         mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
 588
 589 err_unmap_mpt:
 590         mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
 591
 592 err_unmap_mtt:
 593         mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
 594
 595 err_unmap_eq:
 596         mthca_unmap_eq_icm(mdev);
 597
 598 err_unmap_aux:
 599         mthca_UNMAP_ICM_AUX(mdev, &status);
 600
 601 err_free_aux:
 602         mthca_free_icm(mdev, mdev->fw.arbel.aux_icm, 0);
 603
 604         return err;
 605 }
 606
 607 static void mthca_free_icms(struct mthca_dev *mdev)
 608 {
 609         u8 status;
 610
 611         mthca_free_icm_table(mdev, mdev->mcg_table.table);
 612         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 613                 mthca_free_icm_table(mdev, mdev->srq_table.table);
 614         mthca_free_icm_table(mdev, mdev->cq_table.table);
 615         mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
 616         mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
 617         mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
 618         mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
 619         mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
 620         mthca_unmap_eq_icm(mdev);
 621
 622         mthca_UNMAP_ICM_AUX(mdev, &status);
 623         mthca_free_icm(mdev, mdev->fw.arbel.aux_icm, 0);
 624 }
 625
 626 static int mthca_init_arbel(struct mthca_dev *mdev)
 627 {
 628         struct mthca_dev_lim        dev_lim;
 629         struct mthca_profile        profile;
 630         struct mthca_init_hca_param init_hca;
 631         s64 icm_size;
 632         u8 status;
 633         int err;
 634
 635         err = mthca_QUERY_FW(mdev, &status);
 636         if (err) {
 637                 mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
 638                 return err;
 639         }
 640         if (status) {
 641                 mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
 642                           "aborting.\n", status);
 643                 return -EINVAL;
 644         }
 645
 646         err = mthca_ENABLE_LAM(mdev, &status);
 647         if (err) {
 648                 mthca_err(mdev, "ENABLE_LAM command failed, aborting.\n");
 649                 return err;
 650         }
 651         if (status == MTHCA_CMD_STAT_LAM_NOT_PRE) {
 652                 mthca_dbg(mdev, "No HCA-attached memory (running in MemFree mode)\n");
 653                 mdev->mthca_flags |= MTHCA_FLAG_NO_LAM;
 654         } else if (status) {
 655                 mthca_err(mdev, "ENABLE_LAM returned status 0x%02x, "
 656                           "aborting.\n", status);
 657                 return -EINVAL;
 658         }
 659
 660         err = mthca_load_fw(mdev);
 661         if (err) {
 662                 mthca_err(mdev, "Failed to start FW, aborting.\n");
 663                 goto err_disable;
 664         }
 665
 666         err = mthca_dev_lim(mdev, &dev_lim);
 667         if (err) {
 668                 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
 669                 goto err_stop_fw;
 670         }
 671
 672         profile = hca_profile;
 673         profile.num_uar  = dev_lim.uar_size / PAGE_SIZE;
 674         profile.num_udav = 0;
 675         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 676                 profile.num_srq = dev_lim.max_srqs;
 677
 678         icm_size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
 679         if (icm_size < 0) {
 680                 err = icm_size;
 681                 goto err_stop_fw;
 682         }
 683
 684         err = mthca_init_icm(mdev, &dev_lim, &init_hca, icm_size);
 685         if (err)
 686                 goto err_stop_fw;
 687
 688         err = mthca_INIT_HCA(mdev, &init_hca, &status);
 689         if (err) {
 690                 mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
 691                 goto err_free_icm;
 692         }
 693         if (status) {
 694                 mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
 695                           "aborting.\n", status);
 696                 err = -EINVAL;
 697                 goto err_free_icm;
 698         }
 699
 700         return 0;
 701
 702 err_free_icm:
 703         mthca_free_icms(mdev);
 704
 705 err_stop_fw:
 706         mthca_UNMAP_FA(mdev, &status);
 707         mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
 708
 709 err_disable:
 710         if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
 711                 mthca_DISABLE_LAM(mdev, &status);
 712
 713         return err;
 714 }
 715
 716 static void mthca_close_hca(struct mthca_dev *mdev)
 717 {
 718         u8 status;
 719
 720         mthca_CLOSE_HCA(mdev, 0, &status);
 721
 722         if (mthca_is_memfree(mdev)) {
 723                 mthca_free_icms(mdev);
 724
 725                 mthca_UNMAP_FA(mdev, &status);
 726                 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
 727
 728                 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
 729                         mthca_DISABLE_LAM(mdev, &status);
 730         } else
 731                 mthca_SYS_DIS(mdev, &status);
 732 }
 733
 734 static int mthca_init_hca(struct mthca_dev *mdev)
 735 {
 736         u8 status;
 737         int err;
 738         struct mthca_adapter adapter;
 739
 740         if (mthca_is_memfree(mdev))
 741                 err = mthca_init_arbel(mdev);
 742         else
 743                 err = mthca_init_tavor(mdev);
 744
 745         if (err)
 746                 return err;
 747
 748         err = mthca_QUERY_ADAPTER(mdev, &adapter, &status);
 749         if (err) {
 750                 mthca_err(mdev, "QUERY_ADAPTER command failed, aborting.\n");
 751                 goto err_close;
 752         }
 753         if (status) {
 754                 mthca_err(mdev, "QUERY_ADAPTER returned status 0x%02x, "
 755                           "aborting.\n", status);
 756                 err = -EINVAL;
 757                 goto err_close;
 758         }
 759
 760         mdev->eq_table.inta_pin = adapter.inta_pin;
 761         if (!mthca_is_memfree(mdev))
 762                 mdev->rev_id = adapter.revision_id;
 763         memcpy(mdev->board_id, adapter.board_id, sizeof mdev->board_id);
 764
 765         return 0;
 766
 767 err_close:
 768         mthca_close_hca(mdev);
 769         return err;
 770 }
 771
 772 static int mthca_setup_hca(struct mthca_dev *dev)
 773 {
 774         int err;
 775         u8 status;
 776
 777         MTHCA_INIT_DOORBELL_LOCK(&dev->doorbell_lock);
 778
 779         err = mthca_init_uar_table(dev);
 780         if (err) {
 781                 mthca_err(dev, "Failed to initialize "
 782                           "user access region table, aborting.\n");
 783                 return err;
 784         }
 785
 786         err = mthca_uar_alloc(dev, &dev->driver_uar);
 787         if (err) {
 788                 mthca_err(dev, "Failed to allocate driver access region, "
 789                           "aborting.\n");
 790                 goto err_uar_table_free;
 791         }
 792
 793         dev->kar = ioremap(dev->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
 794         if (!dev->kar) {
 795                 mthca_err(dev, "Couldn't map kernel access region, "
 796                           "aborting.\n");
 797                 err = -ENOMEM;
 798                 goto err_uar_free;
 799         }
 800
 801         err = mthca_init_pd_table(dev);
 802         if (err) {
 803                 mthca_err(dev, "Failed to initialize "
 804                           "protection domain table, aborting.\n");
 805                 goto err_kar_unmap;
 806         }
 807
 808         err = mthca_init_mr_table(dev);
 809         if (err) {
 810                 mthca_err(dev, "Failed to initialize "
 811                           "memory region table, aborting.\n");
 812                 goto err_pd_table_free;
 813         }
 814
 815         err = mthca_pd_alloc(dev, 1, &dev->driver_pd);
 816         if (err) {
 817                 mthca_err(dev, "Failed to create driver PD, "
 818                           "aborting.\n");
 819                 goto err_mr_table_free;
 820         }
 821
 822         err = mthca_init_eq_table(dev);
 823         if (err) {
 824                 mthca_err(dev, "Failed to initialize "
 825                           "event queue table, aborting.\n");
 826                 goto err_pd_free;
 827         }
 828
 829         err = mthca_cmd_use_events(dev);
 830         if (err) {
 831                 mthca_err(dev, "Failed to switch to event-driven "
 832                           "firmware commands, aborting.\n");
 833                 goto err_eq_table_free;
 834         }
 835
 836         err = mthca_NOP(dev, &status);
 837         if (err || status) {
 838                 if (dev->mthca_flags & MTHCA_FLAG_MSI_X) {
 839                         mthca_warn(dev, "NOP command failed to generate interrupt "
 840                                    "(IRQ %d).\n",
 841                                    dev->eq_table.eq[MTHCA_EQ_CMD].msi_x_vector);
 842                         mthca_warn(dev, "Trying again with MSI-X disabled.\n");
 843                 } else {
 844                         mthca_err(dev, "NOP command failed to generate interrupt "
 845                                   "(IRQ %d), aborting.\n",
 846                                   dev->pdev->irq);
 847                         mthca_err(dev, "BIOS or ACPI interrupt routing problem?\n");
 848                 }
 849
 850                 goto err_cmd_poll;
 851         }
 852
 853         mthca_dbg(dev, "NOP command IRQ test passed\n");
 854
 855         err = mthca_init_cq_table(dev);
 856         if (err) {
 857                 mthca_err(dev, "Failed to initialize "
 858                           "completion queue table, aborting.\n");
 859                 goto err_cmd_poll;
 860         }
 861
 862         err = mthca_init_srq_table(dev);
 863         if (err) {
 864                 mthca_err(dev, "Failed to initialize "
 865                           "shared receive queue table, aborting.\n");
 866                 goto err_cq_table_free;
 867         }
 868
 869         err = mthca_init_qp_table(dev);
 870         if (err) {
 871                 mthca_err(dev, "Failed to initialize "
 872                           "queue pair table, aborting.\n");
 873                 goto err_srq_table_free;
 874         }
 875
 876         err = mthca_init_av_table(dev);
 877         if (err) {
 878                 mthca_err(dev, "Failed to initialize "
 879                           "address vector table, aborting.\n");
 880                 goto err_qp_table_free;
 881         }
 882
 883         err = mthca_init_mcg_table(dev);
 884         if (err) {
 885                 mthca_err(dev, "Failed to initialize "
 886                           "multicast group table, aborting.\n");
 887                 goto err_av_table_free;
 888         }
 889
 890         return 0;
 891
 892 err_av_table_free:
 893         mthca_cleanup_av_table(dev);
 894
 895 err_qp_table_free:
 896         mthca_cleanup_qp_table(dev);
 897
 898 err_srq_table_free:
 899         mthca_cleanup_srq_table(dev);
 900
 901 err_cq_table_free:
 902         mthca_cleanup_cq_table(dev);
 903
 904 err_cmd_poll:
 905         mthca_cmd_use_polling(dev);
 906
 907 err_eq_table_free:
 908         mthca_cleanup_eq_table(dev);
 909
 910 err_pd_free:
 911         mthca_pd_free(dev, &dev->driver_pd);
 912
 913 err_mr_table_free:
 914         mthca_cleanup_mr_table(dev);
 915
 916 err_pd_table_free:
 917         mthca_cleanup_pd_table(dev);
 918
 919 err_kar_unmap:
 920         iounmap(dev->kar);
 921
 922 err_uar_free:
 923         mthca_uar_free(dev, &dev->driver_uar);
 924
 925 err_uar_table_free:
 926         mthca_cleanup_uar_table(dev);
 927         return err;
 928 }
 929
 930 static int mthca_enable_msi_x(struct mthca_dev *mdev)
 931 {
 932         struct msix_entry entries[3];
 933         int err;
 934
 935         entries[0].entry = 0;
 936         entries[1].entry = 1;
 937         entries[2].entry = 2;
 938
 939         err = pci_enable_msix(mdev->pdev, entries, ARRAY_SIZE(entries));
 940         if (err) {
 941                 if (err > 0)
 942                         mthca_info(mdev, "Only %d MSI-X vectors available, "
 943                                    "not using MSI-X\n", err);
 944                 return err;
 945         }
 946
 947         mdev->eq_table.eq[MTHCA_EQ_COMP ].msi_x_vector = entries[0].vector;
 948         mdev->eq_table.eq[MTHCA_EQ_ASYNC].msi_x_vector = entries[1].vector;
 949         mdev->eq_table.eq[MTHCA_EQ_CMD  ].msi_x_vector = entries[2].vector;
 950
 951         return 0;
 952 }
 953
 954 /* Types of supported HCA */
 955 enum {
 956         TAVOR,                  /* MT23108                        */
 957         ARBEL_COMPAT,           /* MT25208 in Tavor compat mode   */
 958         ARBEL_NATIVE,           /* MT25208 with extended features */
 959         SINAI                   /* MT25204 */
 960 };
 961
 962 #define MTHCA_FW_VER(major, minor, subminor) \
 963         (((u64) (major) << 32) | ((u64) (minor) << 16) | (u64) (subminor))
 964
 965 static struct {
 966         u64 latest_fw;
 967         u32 flags;
 968 } mthca_hca_table[] = {
 969         [TAVOR]        = { .latest_fw = MTHCA_FW_VER(3, 5, 0),
 970                            .flags     = 0 },
 971         [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 8, 200),
 972                            .flags     = MTHCA_FLAG_PCIE },
 973         [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 3, 0),
 974                            .flags     = MTHCA_FLAG_MEMFREE |
 975                                         MTHCA_FLAG_PCIE },
 976         [SINAI]        = { .latest_fw = MTHCA_FW_VER(1, 2, 0),
 977                            .flags     = MTHCA_FLAG_MEMFREE |
 978                                         MTHCA_FLAG_PCIE    |
 979                                         MTHCA_FLAG_SINAI_OPT }
 980 };
 981
 982 static int __mthca_init_one(struct pci_dev *pdev, int hca_type)
 983 {
 984         int ddr_hidden = 0;
 985         int err;
 986         struct mthca_dev *mdev;
 987
 988         printk(KERN_INFO PFX "Initializing %s\n",
 989                pci_name(pdev));
 990
 991         err = pci_enable_device(pdev);
 992         if (err) {
 993                 dev_err(&pdev->dev, "Cannot enable PCI device, "
 994                         "aborting.\n");
 995                 return err;
 996         }
 997
 998         /*
 999          * Check for BARs.  We expect 0: 1MB, 2: 8MB, 4: DDR (may not
1000          * be present)
1001          */
1002         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) ||
1003             pci_resource_len(pdev, 0) != 1 << 20) {
1004                 dev_err(&pdev->dev, "Missing DCS, aborting.\n");
1005                 err = -ENODEV;
1006                 goto err_disable_pdev;
1007         }
1008         if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
1009                 dev_err(&pdev->dev, "Missing UAR, aborting.\n");
1010                 err = -ENODEV;
1011                 goto err_disable_pdev;
1012         }
1013         if (!(pci_resource_flags(pdev, 4) & IORESOURCE_MEM))
1014                 ddr_hidden = 1;
1015
1016         err = pci_request_regions(pdev, DRV_NAME);
1017         if (err) {
1018                 dev_err(&pdev->dev, "Cannot obtain PCI resources, "
1019                         "aborting.\n");
1020                 goto err_disable_pdev;
1021         }
1022
1023         pci_set_master(pdev);
1024
1025         err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
1026         if (err) {
1027                 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n");
1028                 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
1029                 if (err) {
1030                         dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n");
1031                         goto err_free_res;
1032                 }
1033         }
1034         err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
1035         if (err) {
1036                 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit "
1037                          "consistent PCI DMA mask.\n");
1038                 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
1039                 if (err) {
1040                         dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
1041                                 "aborting.\n");
1042                         goto err_free_res;
1043                 }
1044         }
1045
1046         mdev = (struct mthca_dev *) ib_alloc_device(sizeof *mdev);
1047         if (!mdev) {
1048                 dev_err(&pdev->dev, "Device struct alloc failed, "
1049                         "aborting.\n");
1050                 err = -ENOMEM;
1051                 goto err_free_res;
1052         }
1053
1054         mdev->pdev = pdev;
1055
1056         mdev->mthca_flags = mthca_hca_table[hca_type].flags;
1057         if (ddr_hidden)
1058                 mdev->mthca_flags |= MTHCA_FLAG_DDR_HIDDEN;
1059
1060         /*
1061          * Now reset the HCA before we touch the PCI capabilities or
1062          * attempt a firmware command, since a boot ROM may have left
1063          * the HCA in an undefined state.
1064          */
1065         err = mthca_reset(mdev);
1066         if (err) {
1067                 mthca_err(mdev, "Failed to reset HCA, aborting.\n");
1068                 goto err_free_dev;
1069         }
1070
1071         if (mthca_cmd_init(mdev)) {
1072                 mthca_err(mdev, "Failed to init command interface, aborting.\n");
1073                 goto err_free_dev;
1074         }
1075
1076         err = mthca_tune_pci(mdev);
1077         if (err)
1078                 goto err_cmd;
1079
1080         err = mthca_init_hca(mdev);
1081         if (err)
1082                 goto err_cmd;
1083
1084         if (mdev->fw_ver < mthca_hca_table[hca_type].latest_fw) {
1085                 mthca_warn(mdev, "HCA FW version %d.%d.%03d is old (%d.%d.%03d is current).\n",
1086                            (int) (mdev->fw_ver >> 32), (int) (mdev->fw_ver >> 16) & 0xffff,
1087                            (int) (mdev->fw_ver & 0xffff),
1088                            (int) (mthca_hca_table[hca_type].latest_fw >> 32),
1089                            (int) (mthca_hca_table[hca_type].latest_fw >> 16) & 0xffff,
1090                            (int) (mthca_hca_table[hca_type].latest_fw & 0xffff));
1091                 mthca_warn(mdev, "If you have problems, try updating your HCA FW.\n");
1092         }
1093
1094         if (msi_x && !mthca_enable_msi_x(mdev))
1095                 mdev->mthca_flags |= MTHCA_FLAG_MSI_X;
1096
1097         err = mthca_setup_hca(mdev);
1098         if (err == -EBUSY && (mdev->mthca_flags & MTHCA_FLAG_MSI_X)) {
1099                 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1100                         pci_disable_msix(pdev);
1101                 mdev->mthca_flags &= ~MTHCA_FLAG_MSI_X;
1102
1103                 err = mthca_setup_hca(mdev);
1104         }
1105
1106         if (err)
1107                 goto err_close;
1108
1109         err = mthca_register_device(mdev);
1110         if (err)
1111                 goto err_cleanup;
1112
1113         err = mthca_create_agents(mdev);
1114         if (err)
1115                 goto err_unregister;
1116
1117         pci_set_drvdata(pdev, mdev);
1118         mdev->hca_type = hca_type;
1119
1120         mdev->active = true;
1121
1122         return 0;
1123
1124 err_unregister:
1125         mthca_unregister_device(mdev);
1126
1127 err_cleanup:
1128         mthca_cleanup_mcg_table(mdev);
1129         mthca_cleanup_av_table(mdev);
1130         mthca_cleanup_qp_table(mdev);
1131         mthca_cleanup_srq_table(mdev);
1132         mthca_cleanup_cq_table(mdev);
1133         mthca_cmd_use_polling(mdev);
1134         mthca_cleanup_eq_table(mdev);
1135
1136         mthca_pd_free(mdev, &mdev->driver_pd);
1137
1138         mthca_cleanup_mr_table(mdev);
1139         mthca_cleanup_pd_table(mdev);
1140         mthca_cleanup_uar_table(mdev);
1141
1142 err_close:
1143         if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1144                 pci_disable_msix(pdev);
1145
1146         mthca_close_hca(mdev);
1147
1148 err_cmd:
1149         mthca_cmd_cleanup(mdev);
1150
1151 err_free_dev:
1152         ib_dealloc_device(&mdev->ib_dev);
1153
1154 err_free_res:
1155         pci_release_regions(pdev);
1156
1157 err_disable_pdev:
1158         pci_disable_device(pdev);
1159         pci_set_drvdata(pdev, NULL);
1160         return err;
1161 }
1162
1163 static void __mthca_remove_one(struct pci_dev *pdev)
1164 {
1165         struct mthca_dev *mdev = pci_get_drvdata(pdev);
1166         u8 status;
1167         int p;
1168
1169         if (mdev) {
1170                 mthca_free_agents(mdev);
1171                 mthca_unregister_device(mdev);
1172
1173                 for (p = 1; p <= mdev->limits.num_ports; ++p)
1174                         mthca_CLOSE_IB(mdev, p, &status);
1175
1176                 mthca_cleanup_mcg_table(mdev);
1177                 mthca_cleanup_av_table(mdev);
1178                 mthca_cleanup_qp_table(mdev);
1179                 mthca_cleanup_srq_table(mdev);
1180                 mthca_cleanup_cq_table(mdev);
1181                 mthca_cmd_use_polling(mdev);
1182                 mthca_cleanup_eq_table(mdev);
1183
1184                 mthca_pd_free(mdev, &mdev->driver_pd);
1185
1186                 mthca_cleanup_mr_table(mdev);
1187                 mthca_cleanup_pd_table(mdev);
1188
1189                 iounmap(mdev->kar);
1190                 mthca_uar_free(mdev, &mdev->driver_uar);
1191                 mthca_cleanup_uar_table(mdev);
1192                 mthca_close_hca(mdev);
1193                 mthca_cmd_cleanup(mdev);
1194
1195                 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1196                         pci_disable_msix(pdev);
1197
1198                 ib_dealloc_device(&mdev->ib_dev);
1199                 pci_release_regions(pdev);
1200                 pci_disable_device(pdev);
1201                 pci_set_drvdata(pdev, NULL);
1202         }
1203 }
1204
1205 int __mthca_restart_one(struct pci_dev *pdev)
1206 {
1207         struct mthca_dev *mdev;
1208         int hca_type;
1209
1210         mdev = pci_get_drvdata(pdev);
1211         if (!mdev)
1212                 return -ENODEV;
1213         hca_type = mdev->hca_type;
1214         __mthca_remove_one(pdev);
1215         return __mthca_init_one(pdev, hca_type);
1216 }
1217
1218 static int __devinit mthca_init_one(struct pci_dev *pdev,
1219                                     const struct pci_device_id *id)
1220 {
1221         int ret;
1222
1223         mutex_lock(&mthca_device_mutex);
1224
1225         printk_once(KERN_INFO "%s", mthca_version);
1226
1227         if (id->driver_data >= ARRAY_SIZE(mthca_hca_table)) {
1228                 printk(KERN_ERR PFX "%s has invalid driver data %lx\n",
1229                        pci_name(pdev), id->driver_data);
1230                 mutex_unlock(&mthca_device_mutex);
1231                 return -ENODEV;
1232         }
1233
1234         ret = __mthca_init_one(pdev, id->driver_data);
1235
1236         mutex_unlock(&mthca_device_mutex);
1237
1238         return ret;
1239 }
1240
1241 static void __devexit mthca_remove_one(struct pci_dev *pdev)
1242 {
1243         mutex_lock(&mthca_device_mutex);
1244         __mthca_remove_one(pdev);
1245         mutex_unlock(&mthca_device_mutex);
1246 }
1247
1248 static struct pci_device_id mthca_pci_table[] = {
1249         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR),
1250           .driver_data = TAVOR },
1251         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_TAVOR),
1252           .driver_data = TAVOR },
1253         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1254           .driver_data = ARBEL_COMPAT },
1255         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1256           .driver_data = ARBEL_COMPAT },
1257         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL),
1258           .driver_data = ARBEL_NATIVE },
1259         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL),
1260           .driver_data = ARBEL_NATIVE },
1261         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI),
1262           .driver_data = SINAI },
1263         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI),
1264           .driver_data = SINAI },
1265         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1266           .driver_data = SINAI },
1267         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1268           .driver_data = SINAI },
1269         { 0, }
1270 };
1271
1272 MODULE_DEVICE_TABLE(pci, mthca_pci_table);
1273
1274 static struct pci_driver mthca_driver = {
1275         .name           = DRV_NAME,
1276         .id_table       = mthca_pci_table,
1277         .probe          = mthca_init_one,
1278         .remove         = __devexit_p(mthca_remove_one)
1279 };
1280
1281 static void __init __mthca_check_profile_val(const char *name, int *pval,
1282                                              int pval_default)
1283 {
1284         /* value must be positive and power of 2 */
1285         int old_pval = *pval;
1286
1287         if (old_pval <= 0)
1288                 *pval = pval_default;
1289         else
1290                 *pval = roundup_pow_of_two(old_pval);
1291
1292         if (old_pval != *pval) {
1293                 printk(KERN_WARNING PFX "Invalid value %d for %s in module parameter.\n",
1294                        old_pval, name);
1295                 printk(KERN_WARNING PFX "Corrected %s to %d.\n", name, *pval);
1296         }
1297 }
1298
1299 #define mthca_check_profile_val(name, default)                          \
1300         __mthca_check_profile_val(#name, &hca_profile.name, default)
1301
1302 static void __init mthca_validate_profile(void)
1303 {
1304         mthca_check_profile_val(num_qp,            MTHCA_DEFAULT_NUM_QP);
1305         mthca_check_profile_val(rdb_per_qp,        MTHCA_DEFAULT_RDB_PER_QP);
1306         mthca_check_profile_val(num_cq,            MTHCA_DEFAULT_NUM_CQ);
1307         mthca_check_profile_val(num_mcg,           MTHCA_DEFAULT_NUM_MCG);
1308         mthca_check_profile_val(num_mpt,           MTHCA_DEFAULT_NUM_MPT);
1309         mthca_check_profile_val(num_mtt,           MTHCA_DEFAULT_NUM_MTT);
1310         mthca_check_profile_val(num_udav,          MTHCA_DEFAULT_NUM_UDAV);
1311         mthca_check_profile_val(fmr_reserved_mtts, MTHCA_DEFAULT_NUM_RESERVED_MTTS);
1312
1313         if (hca_profile.fmr_reserved_mtts >= hca_profile.num_mtt) {
1314                 printk(KERN_WARNING PFX "Invalid fmr_reserved_mtts module parameter %d.\n",
1315                        hca_profile.fmr_reserved_mtts);
1316                 printk(KERN_WARNING PFX "(Must be smaller than num_mtt %d)\n",
1317                        hca_profile.num_mtt);
1318                 hca_profile.fmr_reserved_mtts = hca_profile.num_mtt / 2;
1319                 printk(KERN_WARNING PFX "Corrected fmr_reserved_mtts to %d.\n",
1320                        hca_profile.fmr_reserved_mtts);
1321         }
1322
1323         if ((log_mtts_per_seg < 1) || (log_mtts_per_seg > 5)) {
1324                 printk(KERN_WARNING PFX "bad log_mtts_per_seg (%d). Using default - %d\n",
1325                        log_mtts_per_seg, ilog2(MTHCA_MTT_SEG_SIZE / 8));
1326                 log_mtts_per_seg = ilog2(MTHCA_MTT_SEG_SIZE / 8);
1327         }
1328 }
1329
1330 static int __init mthca_init(void)
1331 {
1332         int ret;
1333
1334         mthca_validate_profile();
1335
1336         ret = mthca_catas_init();
1337         if (ret)
1338                 return ret;
1339
1340         ret = pci_register_driver(&mthca_driver);
1341         if (ret < 0) {
1342                 mthca_catas_cleanup();
1343                 return ret;
1344         }
1345
1346         return 0;
1347 }
1348
1349 static void __exit mthca_cleanup(void)
1350 {
1351         pci_unregister_driver(&mthca_driver);
1352         mthca_catas_cleanup();
1353 }
1354
1355 module_init(mthca_init);
1356 module_exit(mthca_cleanup);