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
  41 #include "mthca_dev.h"
  42 #include "mthca_config_reg.h"
  43 #include "mthca_cmd.h"
  44 #include "mthca_profile.h"
  45 #include "mthca_memfree.h"
  46 #include "mthca_wqe.h"
  47
  48 MODULE_AUTHOR("Roland Dreier");
  49 MODULE_DESCRIPTION("Mellanox InfiniBand HCA low-level driver");
  50 MODULE_LICENSE("Dual BSD/GPL");
  51 MODULE_VERSION(DRV_VERSION);
  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[] __devinitdata =
 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_find_capability(mdev->pdev, PCI_CAP_ID_EXP)) {
 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         u8 status;
 168
 169         mdev->limits.mtt_seg_size = (1 << log_mtts_per_seg) * 8;
 170         err = mthca_QUERY_DEV_LIM(mdev, dev_lim, &status);
 171         if (err) {
 172                 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
 173                 return err;
 174         }
 175         if (status) {
 176                 mthca_err(mdev, "QUERY_DEV_LIM returned status 0x%02x, "
 177                           "aborting.\n", status);
 178                 return -EINVAL;
 179         }
 180         if (dev_lim->min_page_sz > PAGE_SIZE) {
 181                 mthca_err(mdev, "HCA minimum page size of %d bigger than "
 182                           "kernel PAGE_SIZE of %ld, aborting.\n",
 183                           dev_lim->min_page_sz, PAGE_SIZE);
 184                 return -ENODEV;
 185         }
 186         if (dev_lim->num_ports > MTHCA_MAX_PORTS) {
 187                 mthca_err(mdev, "HCA has %d ports, but we only support %d, "
 188                           "aborting.\n",
 189                           dev_lim->num_ports, MTHCA_MAX_PORTS);
 190                 return -ENODEV;
 191         }
 192
 193         if (dev_lim->uar_size > pci_resource_len(mdev->pdev, 2)) {
 194                 mthca_err(mdev, "HCA reported UAR size of 0x%x bigger than "
 195                           "PCI resource 2 size of 0x%llx, aborting.\n",
 196                           dev_lim->uar_size,
 197                           (unsigned long long)pci_resource_len(mdev->pdev, 2));
 198                 return -ENODEV;
 199         }
 200
 201         mdev->limits.num_ports          = dev_lim->num_ports;
 202         mdev->limits.vl_cap             = dev_lim->max_vl;
 203         mdev->limits.mtu_cap            = dev_lim->max_mtu;
 204         mdev->limits.gid_table_len      = dev_lim->max_gids;
 205         mdev->limits.pkey_table_len     = dev_lim->max_pkeys;
 206         mdev->limits.local_ca_ack_delay = dev_lim->local_ca_ack_delay;
 207         /*
 208          * Need to allow for worst case send WQE overhead and check
 209          * whether max_desc_sz imposes a lower limit than max_sg; UD
 210          * send has the biggest overhead.
 211          */
 212         mdev->limits.max_sg             = min_t(int, dev_lim->max_sg,
 213                                               (dev_lim->max_desc_sz -
 214                                                sizeof (struct mthca_next_seg) -
 215                                                (mthca_is_memfree(mdev) ?
 216                                                 sizeof (struct mthca_arbel_ud_seg) :
 217                                                 sizeof (struct mthca_tavor_ud_seg))) /
 218                                                 sizeof (struct mthca_data_seg));
 219         mdev->limits.max_wqes           = dev_lim->max_qp_sz;
 220         mdev->limits.max_qp_init_rdma   = dev_lim->max_requester_per_qp;
 221         mdev->limits.reserved_qps       = dev_lim->reserved_qps;
 222         mdev->limits.max_srq_wqes       = dev_lim->max_srq_sz;
 223         mdev->limits.reserved_srqs      = dev_lim->reserved_srqs;
 224         mdev->limits.reserved_eecs      = dev_lim->reserved_eecs;
 225         mdev->limits.max_desc_sz        = dev_lim->max_desc_sz;
 226         mdev->limits.max_srq_sge        = mthca_max_srq_sge(mdev);
 227         /*
 228          * Subtract 1 from the limit because we need to allocate a
 229          * spare CQE so the HCA HW can tell the difference between an
 230          * empty CQ and a full CQ.
 231          */
 232         mdev->limits.max_cqes           = dev_lim->max_cq_sz - 1;
 233         mdev->limits.reserved_cqs       = dev_lim->reserved_cqs;
 234         mdev->limits.reserved_eqs       = dev_lim->reserved_eqs;
 235         mdev->limits.reserved_mtts      = dev_lim->reserved_mtts;
 236         mdev->limits.reserved_mrws      = dev_lim->reserved_mrws;
 237         mdev->limits.reserved_uars      = dev_lim->reserved_uars;
 238         mdev->limits.reserved_pds       = dev_lim->reserved_pds;
 239         mdev->limits.port_width_cap     = dev_lim->max_port_width;
 240         mdev->limits.page_size_cap      = ~(u32) (dev_lim->min_page_sz - 1);
 241         mdev->limits.flags              = dev_lim->flags;
 242         /*
 243          * For old FW that doesn't return static rate support, use a
 244          * value of 0x3 (only static rate values of 0 or 1 are handled),
 245          * except on Sinai, where even old FW can handle static rate
 246          * values of 2 and 3.
 247          */
 248         if (dev_lim->stat_rate_support)
 249                 mdev->limits.stat_rate_support = dev_lim->stat_rate_support;
 250         else if (mdev->mthca_flags & MTHCA_FLAG_SINAI_OPT)
 251                 mdev->limits.stat_rate_support = 0xf;
 252         else
 253                 mdev->limits.stat_rate_support = 0x3;
 254
 255         /* IB_DEVICE_RESIZE_MAX_WR not supported by driver.
 256            May be doable since hardware supports it for SRQ.
 257
 258            IB_DEVICE_N_NOTIFY_CQ is supported by hardware but not by driver.
 259
 260            IB_DEVICE_SRQ_RESIZE is supported by hardware but SRQ is not
 261            supported by driver. */
 262         mdev->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT |
 263                 IB_DEVICE_PORT_ACTIVE_EVENT |
 264                 IB_DEVICE_SYS_IMAGE_GUID |
 265                 IB_DEVICE_RC_RNR_NAK_GEN;
 266
 267         if (dev_lim->flags & DEV_LIM_FLAG_BAD_PKEY_CNTR)
 268                 mdev->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR;
 269
 270         if (dev_lim->flags & DEV_LIM_FLAG_BAD_QKEY_CNTR)
 271                 mdev->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR;
 272
 273         if (dev_lim->flags & DEV_LIM_FLAG_RAW_MULTI)
 274                 mdev->device_cap_flags |= IB_DEVICE_RAW_MULTI;
 275
 276         if (dev_lim->flags & DEV_LIM_FLAG_AUTO_PATH_MIG)
 277                 mdev->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG;
 278
 279         if (dev_lim->flags & DEV_LIM_FLAG_UD_AV_PORT_ENFORCE)
 280                 mdev->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE;
 281
 282         if (dev_lim->flags & DEV_LIM_FLAG_SRQ)
 283                 mdev->mthca_flags |= MTHCA_FLAG_SRQ;
 284
 285         if (mthca_is_memfree(mdev))
 286                 if (dev_lim->flags & DEV_LIM_FLAG_IPOIB_CSUM)
 287                         mdev->device_cap_flags |= IB_DEVICE_UD_IP_CSUM;
 288
 289         return 0;
 290 }
 291
 292 static int mthca_init_tavor(struct mthca_dev *mdev)
 293 {
 294         s64 size;
 295         u8 status;
 296         int err;
 297         struct mthca_dev_lim        dev_lim;
 298         struct mthca_profile        profile;
 299         struct mthca_init_hca_param init_hca;
 300
 301         err = mthca_SYS_EN(mdev, &status);
 302         if (err) {
 303                 mthca_err(mdev, "SYS_EN command failed, aborting.\n");
 304                 return err;
 305         }
 306         if (status) {
 307                 mthca_err(mdev, "SYS_EN returned status 0x%02x, "
 308                           "aborting.\n", status);
 309                 return -EINVAL;
 310         }
 311
 312         err = mthca_QUERY_FW(mdev, &status);
 313         if (err) {
 314                 mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
 315                 goto err_disable;
 316         }
 317         if (status) {
 318                 mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
 319                           "aborting.\n", status);
 320                 err = -EINVAL;
 321                 goto err_disable;
 322         }
 323         err = mthca_QUERY_DDR(mdev, &status);
 324         if (err) {
 325                 mthca_err(mdev, "QUERY_DDR command failed, aborting.\n");
 326                 goto err_disable;
 327         }
 328         if (status) {
 329                 mthca_err(mdev, "QUERY_DDR returned status 0x%02x, "
 330                           "aborting.\n", status);
 331                 err = -EINVAL;
 332                 goto err_disable;
 333         }
 334
 335         err = mthca_dev_lim(mdev, &dev_lim);
 336         if (err) {
 337                 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
 338                 goto err_disable;
 339         }
 340
 341         profile = hca_profile;
 342         profile.num_uar   = dev_lim.uar_size / PAGE_SIZE;
 343         profile.uarc_size = 0;
 344         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 345                 profile.num_srq = dev_lim.max_srqs;
 346
 347         size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
 348         if (size < 0) {
 349                 err = size;
 350                 goto err_disable;
 351         }
 352
 353         err = mthca_INIT_HCA(mdev, &init_hca, &status);
 354         if (err) {
 355                 mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
 356                 goto err_disable;
 357         }
 358         if (status) {
 359                 mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
 360                           "aborting.\n", status);
 361                 err = -EINVAL;
 362                 goto err_disable;
 363         }
 364
 365         return 0;
 366
 367 err_disable:
 368         mthca_SYS_DIS(mdev, &status);
 369
 370         return err;
 371 }
 372
 373 static int mthca_load_fw(struct mthca_dev *mdev)
 374 {
 375         u8 status;
 376         int err;
 377
 378         /* FIXME: use HCA-attached memory for FW if present */
 379
 380         mdev->fw.arbel.fw_icm =
 381                 mthca_alloc_icm(mdev, mdev->fw.arbel.fw_pages,
 382                                 GFP_HIGHUSER | __GFP_NOWARN, 0);
 383         if (!mdev->fw.arbel.fw_icm) {
 384                 mthca_err(mdev, "Couldn't allocate FW area, aborting.\n");
 385                 return -ENOMEM;
 386         }
 387
 388         err = mthca_MAP_FA(mdev, mdev->fw.arbel.fw_icm, &status);
 389         if (err) {
 390                 mthca_err(mdev, "MAP_FA command failed, aborting.\n");
 391                 goto err_free;
 392         }
 393         if (status) {
 394                 mthca_err(mdev, "MAP_FA returned status 0x%02x, aborting.\n", status);
 395                 err = -EINVAL;
 396                 goto err_free;
 397         }
 398         err = mthca_RUN_FW(mdev, &status);
 399         if (err) {
 400                 mthca_err(mdev, "RUN_FW command failed, aborting.\n");
 401                 goto err_unmap_fa;
 402         }
 403         if (status) {
 404                 mthca_err(mdev, "RUN_FW returned status 0x%02x, aborting.\n", status);
 405                 err = -EINVAL;
 406                 goto err_unmap_fa;
 407         }
 408
 409         return 0;
 410
 411 err_unmap_fa:
 412         mthca_UNMAP_FA(mdev, &status);
 413
 414 err_free:
 415         mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
 416         return err;
 417 }
 418
 419 static int mthca_init_icm(struct mthca_dev *mdev,
 420                           struct mthca_dev_lim *dev_lim,
 421                           struct mthca_init_hca_param *init_hca,
 422                           u64 icm_size)
 423 {
 424         u64 aux_pages;
 425         u8 status;
 426         int err;
 427
 428         err = mthca_SET_ICM_SIZE(mdev, icm_size, &aux_pages, &status);
 429         if (err) {
 430                 mthca_err(mdev, "SET_ICM_SIZE command failed, aborting.\n");
 431                 return err;
 432         }
 433         if (status) {
 434                 mthca_err(mdev, "SET_ICM_SIZE returned status 0x%02x, "
 435                           "aborting.\n", status);
 436                 return -EINVAL;
 437         }
 438
 439         mthca_dbg(mdev, "%lld KB of HCA context requires %lld KB aux memory.\n",
 440                   (unsigned long long) icm_size >> 10,
 441                   (unsigned long long) aux_pages << 2);
 442
 443         mdev->fw.arbel.aux_icm = mthca_alloc_icm(mdev, aux_pages,
 444                                                  GFP_HIGHUSER | __GFP_NOWARN, 0);
 445         if (!mdev->fw.arbel.aux_icm) {
 446                 mthca_err(mdev, "Couldn't allocate aux memory, aborting.\n");
 447                 return -ENOMEM;
 448         }
 449
 450         err = mthca_MAP_ICM_AUX(mdev, mdev->fw.arbel.aux_icm, &status);
 451         if (err) {
 452                 mthca_err(mdev, "MAP_ICM_AUX command failed, aborting.\n");
 453                 goto err_free_aux;
 454         }
 455         if (status) {
 456                 mthca_err(mdev, "MAP_ICM_AUX returned status 0x%02x, aborting.\n", status);
 457                 err = -EINVAL;
 458                 goto err_free_aux;
 459         }
 460
 461         err = mthca_map_eq_icm(mdev, init_hca->eqc_base);
 462         if (err) {
 463                 mthca_err(mdev, "Failed to map EQ context memory, aborting.\n");
 464                 goto err_unmap_aux;
 465         }
 466
 467         /* CPU writes to non-reserved MTTs, while HCA might DMA to reserved mtts */
 468         mdev->limits.reserved_mtts = ALIGN(mdev->limits.reserved_mtts * mdev->limits.mtt_seg_size,
 469                                            dma_get_cache_alignment()) / mdev->limits.mtt_seg_size;
 470
 471         mdev->mr_table.mtt_table = mthca_alloc_icm_table(mdev, init_hca->mtt_base,
 472                                                          mdev->limits.mtt_seg_size,
 473                                                          mdev->limits.num_mtt_segs,
 474                                                          mdev->limits.reserved_mtts,
 475                                                          1, 0);
 476         if (!mdev->mr_table.mtt_table) {
 477                 mthca_err(mdev, "Failed to map MTT context memory, aborting.\n");
 478                 err = -ENOMEM;
 479                 goto err_unmap_eq;
 480         }
 481
 482         mdev->mr_table.mpt_table = mthca_alloc_icm_table(mdev, init_hca->mpt_base,
 483                                                          dev_lim->mpt_entry_sz,
 484                                                          mdev->limits.num_mpts,
 485                                                          mdev->limits.reserved_mrws,
 486                                                          1, 1);
 487         if (!mdev->mr_table.mpt_table) {
 488                 mthca_err(mdev, "Failed to map MPT context memory, aborting.\n");
 489                 err = -ENOMEM;
 490                 goto err_unmap_mtt;
 491         }
 492
 493         mdev->qp_table.qp_table = mthca_alloc_icm_table(mdev, init_hca->qpc_base,
 494                                                         dev_lim->qpc_entry_sz,
 495                                                         mdev->limits.num_qps,
 496                                                         mdev->limits.reserved_qps,
 497                                                         0, 0);
 498         if (!mdev->qp_table.qp_table) {
 499                 mthca_err(mdev, "Failed to map QP context memory, aborting.\n");
 500                 err = -ENOMEM;
 501                 goto err_unmap_mpt;
 502         }
 503
 504         mdev->qp_table.eqp_table = mthca_alloc_icm_table(mdev, init_hca->eqpc_base,
 505                                                          dev_lim->eqpc_entry_sz,
 506                                                          mdev->limits.num_qps,
 507                                                          mdev->limits.reserved_qps,
 508                                                          0, 0);
 509         if (!mdev->qp_table.eqp_table) {
 510                 mthca_err(mdev, "Failed to map EQP context memory, aborting.\n");
 511                 err = -ENOMEM;
 512                 goto err_unmap_qp;
 513         }
 514
 515         mdev->qp_table.rdb_table = mthca_alloc_icm_table(mdev, init_hca->rdb_base,
 516                                                          MTHCA_RDB_ENTRY_SIZE,
 517                                                          mdev->limits.num_qps <<
 518                                                          mdev->qp_table.rdb_shift, 0,
 519                                                          0, 0);
 520         if (!mdev->qp_table.rdb_table) {
 521                 mthca_err(mdev, "Failed to map RDB context memory, aborting\n");
 522                 err = -ENOMEM;
 523                 goto err_unmap_eqp;
 524         }
 525
 526        mdev->cq_table.table = mthca_alloc_icm_table(mdev, init_hca->cqc_base,
 527                                                     dev_lim->cqc_entry_sz,
 528                                                     mdev->limits.num_cqs,
 529                                                     mdev->limits.reserved_cqs,
 530                                                     0, 0);
 531         if (!mdev->cq_table.table) {
 532                 mthca_err(mdev, "Failed to map CQ context memory, aborting.\n");
 533                 err = -ENOMEM;
 534                 goto err_unmap_rdb;
 535         }
 536
 537         if (mdev->mthca_flags & MTHCA_FLAG_SRQ) {
 538                 mdev->srq_table.table =
 539                         mthca_alloc_icm_table(mdev, init_hca->srqc_base,
 540                                               dev_lim->srq_entry_sz,
 541                                               mdev->limits.num_srqs,
 542                                               mdev->limits.reserved_srqs,
 543                                               0, 0);
 544                 if (!mdev->srq_table.table) {
 545                         mthca_err(mdev, "Failed to map SRQ context memory, "
 546                                   "aborting.\n");
 547                         err = -ENOMEM;
 548                         goto err_unmap_cq;
 549                 }
 550         }
 551
 552         /*
 553          * It's not strictly required, but for simplicity just map the
 554          * whole multicast group table now.  The table isn't very big
 555          * and it's a lot easier than trying to track ref counts.
 556          */
 557         mdev->mcg_table.table = mthca_alloc_icm_table(mdev, init_hca->mc_base,
 558                                                       MTHCA_MGM_ENTRY_SIZE,
 559                                                       mdev->limits.num_mgms +
 560                                                       mdev->limits.num_amgms,
 561                                                       mdev->limits.num_mgms +
 562                                                       mdev->limits.num_amgms,
 563                                                       0, 0);
 564         if (!mdev->mcg_table.table) {
 565                 mthca_err(mdev, "Failed to map MCG context memory, aborting.\n");
 566                 err = -ENOMEM;
 567                 goto err_unmap_srq;
 568         }
 569
 570         return 0;
 571
 572 err_unmap_srq:
 573         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 574                 mthca_free_icm_table(mdev, mdev->srq_table.table);
 575
 576 err_unmap_cq:
 577         mthca_free_icm_table(mdev, mdev->cq_table.table);
 578
 579 err_unmap_rdb:
 580         mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
 581
 582 err_unmap_eqp:
 583         mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
 584
 585 err_unmap_qp:
 586         mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
 587
 588 err_unmap_mpt:
 589         mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
 590
 591 err_unmap_mtt:
 592         mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
 593
 594 err_unmap_eq:
 595         mthca_unmap_eq_icm(mdev);
 596
 597 err_unmap_aux:
 598         mthca_UNMAP_ICM_AUX(mdev, &status);
 599
 600 err_free_aux:
 601         mthca_free_icm(mdev, mdev->fw.arbel.aux_icm, 0);
 602
 603         return err;
 604 }
 605
 606 static void mthca_free_icms(struct mthca_dev *mdev)
 607 {
 608         u8 status;
 609
 610         mthca_free_icm_table(mdev, mdev->mcg_table.table);
 611         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 612                 mthca_free_icm_table(mdev, mdev->srq_table.table);
 613         mthca_free_icm_table(mdev, mdev->cq_table.table);
 614         mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
 615         mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
 616         mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
 617         mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
 618         mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
 619         mthca_unmap_eq_icm(mdev);
 620
 621         mthca_UNMAP_ICM_AUX(mdev, &status);
 622         mthca_free_icm(mdev, mdev->fw.arbel.aux_icm, 0);
 623 }
 624
 625 static int mthca_init_arbel(struct mthca_dev *mdev)
 626 {
 627         struct mthca_dev_lim        dev_lim;
 628         struct mthca_profile        profile;
 629         struct mthca_init_hca_param init_hca;
 630         s64 icm_size;
 631         u8 status;
 632         int err;
 633
 634         err = mthca_QUERY_FW(mdev, &status);
 635         if (err) {
 636                 mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
 637                 return err;
 638         }
 639         if (status) {
 640                 mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
 641                           "aborting.\n", status);
 642                 return -EINVAL;
 643         }
 644
 645         err = mthca_ENABLE_LAM(mdev, &status);
 646         if (err) {
 647                 mthca_err(mdev, "ENABLE_LAM command failed, aborting.\n");
 648                 return err;
 649         }
 650         if (status == MTHCA_CMD_STAT_LAM_NOT_PRE) {
 651                 mthca_dbg(mdev, "No HCA-attached memory (running in MemFree mode)\n");
 652                 mdev->mthca_flags |= MTHCA_FLAG_NO_LAM;
 653         } else if (status) {
 654                 mthca_err(mdev, "ENABLE_LAM returned status 0x%02x, "
 655                           "aborting.\n", status);
 656                 return -EINVAL;
 657         }
 658
 659         err = mthca_load_fw(mdev);
 660         if (err) {
 661                 mthca_err(mdev, "Failed to start FW, aborting.\n");
 662                 goto err_disable;
 663         }
 664
 665         err = mthca_dev_lim(mdev, &dev_lim);
 666         if (err) {
 667                 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
 668                 goto err_stop_fw;
 669         }
 670
 671         profile = hca_profile;
 672         profile.num_uar  = dev_lim.uar_size / PAGE_SIZE;
 673         profile.num_udav = 0;
 674         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 675                 profile.num_srq = dev_lim.max_srqs;
 676
 677         icm_size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
 678         if (icm_size < 0) {
 679                 err = icm_size;
 680                 goto err_stop_fw;
 681         }
 682
 683         err = mthca_init_icm(mdev, &dev_lim, &init_hca, icm_size);
 684         if (err)
 685                 goto err_stop_fw;
 686
 687         err = mthca_INIT_HCA(mdev, &init_hca, &status);
 688         if (err) {
 689                 mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
 690                 goto err_free_icm;
 691         }
 692         if (status) {
 693                 mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
 694                           "aborting.\n", status);
 695                 err = -EINVAL;
 696                 goto err_free_icm;
 697         }
 698
 699         return 0;
 700
 701 err_free_icm:
 702         mthca_free_icms(mdev);
 703
 704 err_stop_fw:
 705         mthca_UNMAP_FA(mdev, &status);
 706         mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
 707
 708 err_disable:
 709         if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
 710                 mthca_DISABLE_LAM(mdev, &status);
 711
 712         return err;
 713 }
 714
 715 static void mthca_close_hca(struct mthca_dev *mdev)
 716 {
 717         u8 status;
 718
 719         mthca_CLOSE_HCA(mdev, 0, &status);
 720
 721         if (mthca_is_memfree(mdev)) {
 722                 mthca_free_icms(mdev);
 723
 724                 mthca_UNMAP_FA(mdev, &status);
 725                 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
 726
 727                 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
 728                         mthca_DISABLE_LAM(mdev, &status);
 729         } else
 730                 mthca_SYS_DIS(mdev, &status);
 731 }
 732
 733 static int mthca_init_hca(struct mthca_dev *mdev)
 734 {
 735         u8 status;
 736         int err;
 737         struct mthca_adapter adapter;
 738
 739         if (mthca_is_memfree(mdev))
 740                 err = mthca_init_arbel(mdev);
 741         else
 742                 err = mthca_init_tavor(mdev);
 743
 744         if (err)
 745                 return err;
 746
 747         err = mthca_QUERY_ADAPTER(mdev, &adapter, &status);
 748         if (err) {
 749                 mthca_err(mdev, "QUERY_ADAPTER command failed, aborting.\n");
 750                 goto err_close;
 751         }
 752         if (status) {
 753                 mthca_err(mdev, "QUERY_ADAPTER returned status 0x%02x, "
 754                           "aborting.\n", status);
 755                 err = -EINVAL;
 756                 goto err_close;
 757         }
 758
 759         mdev->eq_table.inta_pin = adapter.inta_pin;
 760         if (!mthca_is_memfree(mdev))
 761                 mdev->rev_id = adapter.revision_id;
 762         memcpy(mdev->board_id, adapter.board_id, sizeof mdev->board_id);
 763
 764         return 0;
 765
 766 err_close:
 767         mthca_close_hca(mdev);
 768         return err;
 769 }
 770
 771 static int mthca_setup_hca(struct mthca_dev *dev)
 772 {
 773         int err;
 774         u8 status;
 775
 776         MTHCA_INIT_DOORBELL_LOCK(&dev->doorbell_lock);
 777
 778         err = mthca_init_uar_table(dev);
 779         if (err) {
 780                 mthca_err(dev, "Failed to initialize "
 781                           "user access region table, aborting.\n");
 782                 return err;
 783         }
 784
 785         err = mthca_uar_alloc(dev, &dev->driver_uar);
 786         if (err) {
 787                 mthca_err(dev, "Failed to allocate driver access region, "
 788                           "aborting.\n");
 789                 goto err_uar_table_free;
 790         }
 791
 792         dev->kar = ioremap(dev->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
 793         if (!dev->kar) {
 794                 mthca_err(dev, "Couldn't map kernel access region, "
 795                           "aborting.\n");
 796                 err = -ENOMEM;
 797                 goto err_uar_free;
 798         }
 799
 800         err = mthca_init_pd_table(dev);
 801         if (err) {
 802                 mthca_err(dev, "Failed to initialize "
 803                           "protection domain table, aborting.\n");
 804                 goto err_kar_unmap;
 805         }
 806
 807         err = mthca_init_mr_table(dev);
 808         if (err) {
 809                 mthca_err(dev, "Failed to initialize "
 810                           "memory region table, aborting.\n");
 811                 goto err_pd_table_free;
 812         }
 813
 814         err = mthca_pd_alloc(dev, 1, &dev->driver_pd);
 815         if (err) {
 816                 mthca_err(dev, "Failed to create driver PD, "
 817                           "aborting.\n");
 818                 goto err_mr_table_free;
 819         }
 820
 821         err = mthca_init_eq_table(dev);
 822         if (err) {
 823                 mthca_err(dev, "Failed to initialize "
 824                           "event queue table, aborting.\n");
 825                 goto err_pd_free;
 826         }
 827
 828         err = mthca_cmd_use_events(dev);
 829         if (err) {
 830                 mthca_err(dev, "Failed to switch to event-driven "
 831                           "firmware commands, aborting.\n");
 832                 goto err_eq_table_free;
 833         }
 834
 835         err = mthca_NOP(dev, &status);
 836         if (err || status) {
 837                 if (dev->mthca_flags & MTHCA_FLAG_MSI_X) {
 838                         mthca_warn(dev, "NOP command failed to generate interrupt "
 839                                    "(IRQ %d).\n",
 840                                    dev->eq_table.eq[MTHCA_EQ_CMD].msi_x_vector);
 841                         mthca_warn(dev, "Trying again with MSI-X disabled.\n");
 842                 } else {
 843                         mthca_err(dev, "NOP command failed to generate interrupt "
 844                                   "(IRQ %d), aborting.\n",
 845                                   dev->pdev->irq);
 846                         mthca_err(dev, "BIOS or ACPI interrupt routing problem?\n");
 847                 }
 848
 849                 goto err_cmd_poll;
 850         }
 851
 852         mthca_dbg(dev, "NOP command IRQ test passed\n");
 853
 854         err = mthca_init_cq_table(dev);
 855         if (err) {
 856                 mthca_err(dev, "Failed to initialize "
 857                           "completion queue table, aborting.\n");
 858                 goto err_cmd_poll;
 859         }
 860
 861         err = mthca_init_srq_table(dev);
 862         if (err) {
 863                 mthca_err(dev, "Failed to initialize "
 864                           "shared receive queue table, aborting.\n");
 865                 goto err_cq_table_free;
 866         }
 867
 868         err = mthca_init_qp_table(dev);
 869         if (err) {
 870                 mthca_err(dev, "Failed to initialize "
 871                           "queue pair table, aborting.\n");
 872                 goto err_srq_table_free;
 873         }
 874
 875         err = mthca_init_av_table(dev);
 876         if (err) {
 877                 mthca_err(dev, "Failed to initialize "
 878                           "address vector table, aborting.\n");
 879                 goto err_qp_table_free;
 880         }
 881
 882         err = mthca_init_mcg_table(dev);
 883         if (err) {
 884                 mthca_err(dev, "Failed to initialize "
 885                           "multicast group table, aborting.\n");
 886                 goto err_av_table_free;
 887         }
 888
 889         return 0;
 890
 891 err_av_table_free:
 892         mthca_cleanup_av_table(dev);
 893
 894 err_qp_table_free:
 895         mthca_cleanup_qp_table(dev);
 896
 897 err_srq_table_free:
 898         mthca_cleanup_srq_table(dev);
 899
 900 err_cq_table_free:
 901         mthca_cleanup_cq_table(dev);
 902
 903 err_cmd_poll:
 904         mthca_cmd_use_polling(dev);
 905
 906 err_eq_table_free:
 907         mthca_cleanup_eq_table(dev);
 908
 909 err_pd_free:
 910         mthca_pd_free(dev, &dev->driver_pd);
 911
 912 err_mr_table_free:
 913         mthca_cleanup_mr_table(dev);
 914
 915 err_pd_table_free:
 916         mthca_cleanup_pd_table(dev);
 917
 918 err_kar_unmap:
 919         iounmap(dev->kar);
 920
 921 err_uar_free:
 922         mthca_uar_free(dev, &dev->driver_uar);
 923
 924 err_uar_table_free:
 925         mthca_cleanup_uar_table(dev);
 926         return err;
 927 }
 928
 929 static int mthca_enable_msi_x(struct mthca_dev *mdev)
 930 {
 931         struct msix_entry entries[3];
 932         int err;
 933
 934         entries[0].entry = 0;
 935         entries[1].entry = 1;
 936         entries[2].entry = 2;
 937
 938         err = pci_enable_msix(mdev->pdev, entries, ARRAY_SIZE(entries));
 939         if (err) {
 940                 if (err > 0)
 941                         mthca_info(mdev, "Only %d MSI-X vectors available, "
 942                                    "not using MSI-X\n", err);
 943                 return err;
 944         }
 945
 946         mdev->eq_table.eq[MTHCA_EQ_COMP ].msi_x_vector = entries[0].vector;
 947         mdev->eq_table.eq[MTHCA_EQ_ASYNC].msi_x_vector = entries[1].vector;
 948         mdev->eq_table.eq[MTHCA_EQ_CMD  ].msi_x_vector = entries[2].vector;
 949
 950         return 0;
 951 }
 952
 953 /* Types of supported HCA */
 954 enum {
 955         TAVOR,                  /* MT23108                        */
 956         ARBEL_COMPAT,           /* MT25208 in Tavor compat mode   */
 957         ARBEL_NATIVE,           /* MT25208 with extended features */
 958         SINAI                   /* MT25204 */
 959 };
 960
 961 #define MTHCA_FW_VER(major, minor, subminor) \
 962         (((u64) (major) << 32) | ((u64) (minor) << 16) | (u64) (subminor))
 963
 964 static struct {
 965         u64 latest_fw;
 966         u32 flags;
 967 } mthca_hca_table[] = {
 968         [TAVOR]        = { .latest_fw = MTHCA_FW_VER(3, 5, 0),
 969                            .flags     = 0 },
 970         [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 8, 200),
 971                            .flags     = MTHCA_FLAG_PCIE },
 972         [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 3, 0),
 973                            .flags     = MTHCA_FLAG_MEMFREE |
 974                                         MTHCA_FLAG_PCIE },
 975         [SINAI]        = { .latest_fw = MTHCA_FW_VER(1, 2, 0),
 976                            .flags     = MTHCA_FLAG_MEMFREE |
 977                                         MTHCA_FLAG_PCIE    |
 978                                         MTHCA_FLAG_SINAI_OPT }
 979 };
 980
 981 static int __mthca_init_one(struct pci_dev *pdev, int hca_type)
 982 {
 983         int ddr_hidden = 0;
 984         int err;
 985         struct mthca_dev *mdev;
 986
 987         printk(KERN_INFO PFX "Initializing %s\n",
 988                pci_name(pdev));
 989
 990         err = pci_enable_device(pdev);
 991         if (err) {
 992                 dev_err(&pdev->dev, "Cannot enable PCI device, "
 993                         "aborting.\n");
 994                 return err;
 995         }
 996
 997         /*
 998          * Check for BARs.  We expect 0: 1MB, 2: 8MB, 4: DDR (may not
 999          * be present)
1000          */
1001         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) ||
1002             pci_resource_len(pdev, 0) != 1 << 20) {
1003                 dev_err(&pdev->dev, "Missing DCS, aborting.\n");
1004                 err = -ENODEV;
1005                 goto err_disable_pdev;
1006         }
1007         if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
1008                 dev_err(&pdev->dev, "Missing UAR, aborting.\n");
1009                 err = -ENODEV;
1010                 goto err_disable_pdev;
1011         }
1012         if (!(pci_resource_flags(pdev, 4) & IORESOURCE_MEM))
1013                 ddr_hidden = 1;
1014
1015         err = pci_request_regions(pdev, DRV_NAME);
1016         if (err) {
1017                 dev_err(&pdev->dev, "Cannot obtain PCI resources, "
1018                         "aborting.\n");
1019                 goto err_disable_pdev;
1020         }
1021
1022         pci_set_master(pdev);
1023
1024         err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
1025         if (err) {
1026                 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n");
1027                 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
1028                 if (err) {
1029                         dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n");
1030                         goto err_free_res;
1031                 }
1032         }
1033         err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
1034         if (err) {
1035                 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit "
1036                          "consistent PCI DMA mask.\n");
1037                 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
1038                 if (err) {
1039                         dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
1040                                 "aborting.\n");
1041                         goto err_free_res;
1042                 }
1043         }
1044
1045         mdev = (struct mthca_dev *) ib_alloc_device(sizeof *mdev);
1046         if (!mdev) {
1047                 dev_err(&pdev->dev, "Device struct alloc failed, "
1048                         "aborting.\n");
1049                 err = -ENOMEM;
1050                 goto err_free_res;
1051         }
1052
1053         mdev->pdev = pdev;
1054
1055         mdev->mthca_flags = mthca_hca_table[hca_type].flags;
1056         if (ddr_hidden)
1057                 mdev->mthca_flags |= MTHCA_FLAG_DDR_HIDDEN;
1058
1059         /*
1060          * Now reset the HCA before we touch the PCI capabilities or
1061          * attempt a firmware command, since a boot ROM may have left
1062          * the HCA in an undefined state.
1063          */
1064         err = mthca_reset(mdev);
1065         if (err) {
1066                 mthca_err(mdev, "Failed to reset HCA, aborting.\n");
1067                 goto err_free_dev;
1068         }
1069
1070         if (mthca_cmd_init(mdev)) {
1071                 mthca_err(mdev, "Failed to init command interface, aborting.\n");
1072                 goto err_free_dev;
1073         }
1074
1075         err = mthca_tune_pci(mdev);
1076         if (err)
1077                 goto err_cmd;
1078
1079         err = mthca_init_hca(mdev);
1080         if (err)
1081                 goto err_cmd;
1082
1083         if (mdev->fw_ver < mthca_hca_table[hca_type].latest_fw) {
1084                 mthca_warn(mdev, "HCA FW version %d.%d.%03d is old (%d.%d.%03d is current).\n",
1085                            (int) (mdev->fw_ver >> 32), (int) (mdev->fw_ver >> 16) & 0xffff,
1086                            (int) (mdev->fw_ver & 0xffff),
1087                            (int) (mthca_hca_table[hca_type].latest_fw >> 32),
1088                            (int) (mthca_hca_table[hca_type].latest_fw >> 16) & 0xffff,
1089                            (int) (mthca_hca_table[hca_type].latest_fw & 0xffff));
1090                 mthca_warn(mdev, "If you have problems, try updating your HCA FW.\n");
1091         }
1092
1093         if (msi_x && !mthca_enable_msi_x(mdev))
1094                 mdev->mthca_flags |= MTHCA_FLAG_MSI_X;
1095
1096         err = mthca_setup_hca(mdev);
1097         if (err == -EBUSY && (mdev->mthca_flags & MTHCA_FLAG_MSI_X)) {
1098                 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1099                         pci_disable_msix(pdev);
1100                 mdev->mthca_flags &= ~MTHCA_FLAG_MSI_X;
1101
1102                 err = mthca_setup_hca(mdev);
1103         }
1104
1105         if (err)
1106                 goto err_close;
1107
1108         err = mthca_register_device(mdev);
1109         if (err)
1110                 goto err_cleanup;
1111
1112         err = mthca_create_agents(mdev);
1113         if (err)
1114                 goto err_unregister;
1115
1116         pci_set_drvdata(pdev, mdev);
1117         mdev->hca_type = hca_type;
1118
1119         mdev->active = true;
1120
1121         return 0;
1122
1123 err_unregister:
1124         mthca_unregister_device(mdev);
1125
1126 err_cleanup:
1127         mthca_cleanup_mcg_table(mdev);
1128         mthca_cleanup_av_table(mdev);
1129         mthca_cleanup_qp_table(mdev);
1130         mthca_cleanup_srq_table(mdev);
1131         mthca_cleanup_cq_table(mdev);
1132         mthca_cmd_use_polling(mdev);
1133         mthca_cleanup_eq_table(mdev);
1134
1135         mthca_pd_free(mdev, &mdev->driver_pd);
1136
1137         mthca_cleanup_mr_table(mdev);
1138         mthca_cleanup_pd_table(mdev);
1139         mthca_cleanup_uar_table(mdev);
1140
1141 err_close:
1142         if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1143                 pci_disable_msix(pdev);
1144
1145         mthca_close_hca(mdev);
1146
1147 err_cmd:
1148         mthca_cmd_cleanup(mdev);
1149
1150 err_free_dev:
1151         ib_dealloc_device(&mdev->ib_dev);
1152
1153 err_free_res:
1154         pci_release_regions(pdev);
1155
1156 err_disable_pdev:
1157         pci_disable_device(pdev);
1158         pci_set_drvdata(pdev, NULL);
1159         return err;
1160 }
1161
1162 static void __mthca_remove_one(struct pci_dev *pdev)
1163 {
1164         struct mthca_dev *mdev = pci_get_drvdata(pdev);
1165         u8 status;
1166         int p;
1167
1168         if (mdev) {
1169                 mthca_free_agents(mdev);
1170                 mthca_unregister_device(mdev);
1171
1172                 for (p = 1; p <= mdev->limits.num_ports; ++p)
1173                         mthca_CLOSE_IB(mdev, p, &status);
1174
1175                 mthca_cleanup_mcg_table(mdev);
1176                 mthca_cleanup_av_table(mdev);
1177                 mthca_cleanup_qp_table(mdev);
1178                 mthca_cleanup_srq_table(mdev);
1179                 mthca_cleanup_cq_table(mdev);
1180                 mthca_cmd_use_polling(mdev);
1181                 mthca_cleanup_eq_table(mdev);
1182
1183                 mthca_pd_free(mdev, &mdev->driver_pd);
1184
1185                 mthca_cleanup_mr_table(mdev);
1186                 mthca_cleanup_pd_table(mdev);
1187
1188                 iounmap(mdev->kar);
1189                 mthca_uar_free(mdev, &mdev->driver_uar);
1190                 mthca_cleanup_uar_table(mdev);
1191                 mthca_close_hca(mdev);
1192                 mthca_cmd_cleanup(mdev);
1193
1194                 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1195                         pci_disable_msix(pdev);
1196
1197                 ib_dealloc_device(&mdev->ib_dev);
1198                 pci_release_regions(pdev);
1199                 pci_disable_device(pdev);
1200                 pci_set_drvdata(pdev, NULL);
1201         }
1202 }
1203
1204 int __mthca_restart_one(struct pci_dev *pdev)
1205 {
1206         struct mthca_dev *mdev;
1207         int hca_type;
1208
1209         mdev = pci_get_drvdata(pdev);
1210         if (!mdev)
1211                 return -ENODEV;
1212         hca_type = mdev->hca_type;
1213         __mthca_remove_one(pdev);
1214         return __mthca_init_one(pdev, hca_type);
1215 }
1216
1217 static int __devinit mthca_init_one(struct pci_dev *pdev,
1218                                     const struct pci_device_id *id)
1219 {
1220         int ret;
1221
1222         mutex_lock(&mthca_device_mutex);
1223
1224         printk_once(KERN_INFO "%s", mthca_version);
1225
1226         if (id->driver_data >= ARRAY_SIZE(mthca_hca_table)) {
1227                 printk(KERN_ERR PFX "%s has invalid driver data %lx\n",
1228                        pci_name(pdev), id->driver_data);
1229                 mutex_unlock(&mthca_device_mutex);
1230                 return -ENODEV;
1231         }
1232
1233         ret = __mthca_init_one(pdev, id->driver_data);
1234
1235         mutex_unlock(&mthca_device_mutex);
1236
1237         return ret;
1238 }
1239
1240 static void __devexit mthca_remove_one(struct pci_dev *pdev)
1241 {
1242         mutex_lock(&mthca_device_mutex);
1243         __mthca_remove_one(pdev);
1244         mutex_unlock(&mthca_device_mutex);
1245 }
1246
1247 static struct pci_device_id mthca_pci_table[] = {
1248         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR),
1249           .driver_data = TAVOR },
1250         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_TAVOR),
1251           .driver_data = TAVOR },
1252         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1253           .driver_data = ARBEL_COMPAT },
1254         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1255           .driver_data = ARBEL_COMPAT },
1256         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL),
1257           .driver_data = ARBEL_NATIVE },
1258         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL),
1259           .driver_data = ARBEL_NATIVE },
1260         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI),
1261           .driver_data = SINAI },
1262         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI),
1263           .driver_data = SINAI },
1264         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1265           .driver_data = SINAI },
1266         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1267           .driver_data = SINAI },
1268         { 0, }
1269 };
1270
1271 MODULE_DEVICE_TABLE(pci, mthca_pci_table);
1272
1273 static struct pci_driver mthca_driver = {
1274         .name           = DRV_NAME,
1275         .id_table       = mthca_pci_table,
1276         .probe          = mthca_init_one,
1277         .remove         = __devexit_p(mthca_remove_one)
1278 };
1279
1280 static void __init __mthca_check_profile_val(const char *name, int *pval,
1281                                              int pval_default)
1282 {
1283         /* value must be positive and power of 2 */
1284         int old_pval = *pval;
1285
1286         if (old_pval <= 0)
1287                 *pval = pval_default;
1288         else
1289                 *pval = roundup_pow_of_two(old_pval);
1290
1291         if (old_pval != *pval) {
1292                 printk(KERN_WARNING PFX "Invalid value %d for %s in module parameter.\n",
1293                        old_pval, name);
1294                 printk(KERN_WARNING PFX "Corrected %s to %d.\n", name, *pval);
1295         }
1296 }
1297
1298 #define mthca_check_profile_val(name, default)                          \
1299         __mthca_check_profile_val(#name, &hca_profile.name, default)
1300
1301 static void __init mthca_validate_profile(void)
1302 {
1303         mthca_check_profile_val(num_qp,            MTHCA_DEFAULT_NUM_QP);
1304         mthca_check_profile_val(rdb_per_qp,        MTHCA_DEFAULT_RDB_PER_QP);
1305         mthca_check_profile_val(num_cq,            MTHCA_DEFAULT_NUM_CQ);
1306         mthca_check_profile_val(num_mcg,           MTHCA_DEFAULT_NUM_MCG);
1307         mthca_check_profile_val(num_mpt,           MTHCA_DEFAULT_NUM_MPT);
1308         mthca_check_profile_val(num_mtt,           MTHCA_DEFAULT_NUM_MTT);
1309         mthca_check_profile_val(num_udav,          MTHCA_DEFAULT_NUM_UDAV);
1310         mthca_check_profile_val(fmr_reserved_mtts, MTHCA_DEFAULT_NUM_RESERVED_MTTS);
1311
1312         if (hca_profile.fmr_reserved_mtts >= hca_profile.num_mtt) {
1313                 printk(KERN_WARNING PFX "Invalid fmr_reserved_mtts module parameter %d.\n",
1314                        hca_profile.fmr_reserved_mtts);
1315                 printk(KERN_WARNING PFX "(Must be smaller than num_mtt %d)\n",
1316                        hca_profile.num_mtt);
1317                 hca_profile.fmr_reserved_mtts = hca_profile.num_mtt / 2;
1318                 printk(KERN_WARNING PFX "Corrected fmr_reserved_mtts to %d.\n",
1319                        hca_profile.fmr_reserved_mtts);
1320         }
1321
1322         if ((log_mtts_per_seg < 1) || (log_mtts_per_seg > 5)) {
1323                 printk(KERN_WARNING PFX "bad log_mtts_per_seg (%d). Using default - %d\n",
1324                        log_mtts_per_seg, ilog2(MTHCA_MTT_SEG_SIZE / 8));
1325                 log_mtts_per_seg = ilog2(MTHCA_MTT_SEG_SIZE / 8);
1326         }
1327 }
1328
1329 static int __init mthca_init(void)
1330 {
1331         int ret;
1332
1333         mthca_validate_profile();
1334
1335         ret = mthca_catas_init();
1336         if (ret)
1337                 return ret;
1338
1339         ret = pci_register_driver(&mthca_driver);
1340         if (ret < 0) {
1341                 mthca_catas_cleanup();
1342                 return ret;
1343         }
1344
1345         return 0;
1346 }
1347
1348 static void __exit mthca_cleanup(void)
1349 {
1350         pci_unregister_driver(&mthca_driver);
1351         mthca_catas_cleanup();
1352 }
1353
1354 module_init(mthca_init);
1355 module_exit(mthca_cleanup);