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   1 /*
   2  * Copyright (c) 2004, 2005 Topspin Communications.  All rights reserved.
   3  * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
   4  * Copyright (c) 2005 Mellanox Technologies. All rights reserved.
   5  *
   6  * This software is available to you under a choice of one of two
   7  * licenses.  You may choose to be licensed under the terms of the GNU
   8  * General Public License (GPL) Version 2, available from the file
   9  * COPYING in the main directory of this source tree, or the
  10  * OpenIB.org BSD license below:
  11  *
  12  *     Redistribution and use in source and binary forms, with or
  13  *     without modification, are permitted provided that the following
  14  *     conditions are met:
  15  *
  16  *      - Redistributions of source code must retain the above
  17  *        copyright notice, this list of conditions and the following
  18  *        disclaimer.
  19  *
  20  *      - Redistributions in binary form must reproduce the above
  21  *        copyright notice, this list of conditions and the following
  22  *        disclaimer in the documentation and/or other materials
  23  *        provided with the distribution.
  24  *
  25  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  26  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  27  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  28  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  29  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  30  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  31  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  32  * SOFTWARE.
  33  *
  34  * $Id: mthca_main.c 1396 2004-12-28 04:10:27Z roland $
  35  */
  36
  37 #include <linux/module.h>
  38 #include <linux/init.h>
  39 #include <linux/errno.h>
  40 #include <linux/pci.h>
  41 #include <linux/interrupt.h>
  42
  43 #include "mthca_dev.h"
  44 #include "mthca_config_reg.h"
  45 #include "mthca_cmd.h"
  46 #include "mthca_profile.h"
  47 #include "mthca_memfree.h"
  48
  49 MODULE_AUTHOR("Roland Dreier");
  50 MODULE_DESCRIPTION("Mellanox InfiniBand HCA low-level driver");
  51 MODULE_LICENSE("Dual BSD/GPL");
  52 MODULE_VERSION(DRV_VERSION);
  53
  54 #ifdef CONFIG_INFINIBAND_MTHCA_DEBUG
  55
  56 int mthca_debug_level = 0;
  57 module_param_named(debug_level, mthca_debug_level, int, 0644);
  58 MODULE_PARM_DESC(debug_level, "Enable debug tracing if > 0");
  59
  60 #endif /* CONFIG_INFINIBAND_MTHCA_DEBUG */
  61
  62 #ifdef CONFIG_PCI_MSI
  63
  64 static int msi_x = 1;
  65 module_param(msi_x, int, 0444);
  66 MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero");
  67
  68 #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 char mthca_version[] __devinitdata =
 130         DRV_NAME ": Mellanox InfiniBand HCA driver v"
 131         DRV_VERSION " (" DRV_RELDATE ")\n";
 132
 133 static int mthca_tune_pci(struct mthca_dev *mdev)
 134 {
 135         if (!tune_pci)
 136                 return 0;
 137
 138         /* First try to max out Read Byte Count */
 139         if (pci_find_capability(mdev->pdev, PCI_CAP_ID_PCIX)) {
 140                 if (pcix_set_mmrbc(mdev->pdev, pcix_get_max_mmrbc(mdev->pdev))) {
 141                         mthca_err(mdev, "Couldn't set PCI-X max read count, "
 142                                 "aborting.\n");
 143                         return -ENODEV;
 144                 }
 145         } else if (!(mdev->mthca_flags & MTHCA_FLAG_PCIE))
 146                 mthca_info(mdev, "No PCI-X capability, not setting RBC.\n");
 147
 148         if (pci_find_capability(mdev->pdev, PCI_CAP_ID_EXP)) {
 149                 if (pcie_set_readrq(mdev->pdev, 4096)) {
 150                         mthca_err(mdev, "Couldn't write PCI Express read request, "
 151                                 "aborting.\n");
 152                         return -ENODEV;
 153                 }
 154         } else if (mdev->mthca_flags & MTHCA_FLAG_PCIE)
 155                 mthca_info(mdev, "No PCI Express capability, "
 156                            "not setting Max Read Request Size.\n");
 157
 158         return 0;
 159 }
 160
 161 static int mthca_dev_lim(struct mthca_dev *mdev, struct mthca_dev_lim *dev_lim)
 162 {
 163         int err;
 164         u8 status;
 165
 166         err = mthca_QUERY_DEV_LIM(mdev, dev_lim, &status);
 167         if (err) {
 168                 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
 169                 return err;
 170         }
 171         if (status) {
 172                 mthca_err(mdev, "QUERY_DEV_LIM returned status 0x%02x, "
 173                           "aborting.\n", status);
 174                 return -EINVAL;
 175         }
 176         if (dev_lim->min_page_sz > PAGE_SIZE) {
 177                 mthca_err(mdev, "HCA minimum page size of %d bigger than "
 178                           "kernel PAGE_SIZE of %ld, aborting.\n",
 179                           dev_lim->min_page_sz, PAGE_SIZE);
 180                 return -ENODEV;
 181         }
 182         if (dev_lim->num_ports > MTHCA_MAX_PORTS) {
 183                 mthca_err(mdev, "HCA has %d ports, but we only support %d, "
 184                           "aborting.\n",
 185                           dev_lim->num_ports, MTHCA_MAX_PORTS);
 186                 return -ENODEV;
 187         }
 188
 189         if (dev_lim->uar_size > pci_resource_len(mdev->pdev, 2)) {
 190                 mthca_err(mdev, "HCA reported UAR size of 0x%x bigger than "
 191                           "PCI resource 2 size of 0x%llx, aborting.\n",
 192                           dev_lim->uar_size,
 193                           (unsigned long long)pci_resource_len(mdev->pdev, 2));
 194                 return -ENODEV;
 195         }
 196
 197         mdev->limits.num_ports          = dev_lim->num_ports;
 198         mdev->limits.vl_cap             = dev_lim->max_vl;
 199         mdev->limits.mtu_cap            = dev_lim->max_mtu;
 200         mdev->limits.gid_table_len      = dev_lim->max_gids;
 201         mdev->limits.pkey_table_len     = dev_lim->max_pkeys;
 202         mdev->limits.local_ca_ack_delay = dev_lim->local_ca_ack_delay;
 203         mdev->limits.max_sg             = dev_lim->max_sg;
 204         mdev->limits.max_wqes           = dev_lim->max_qp_sz;
 205         mdev->limits.max_qp_init_rdma   = dev_lim->max_requester_per_qp;
 206         mdev->limits.reserved_qps       = dev_lim->reserved_qps;
 207         mdev->limits.max_srq_wqes       = dev_lim->max_srq_sz;
 208         mdev->limits.reserved_srqs      = dev_lim->reserved_srqs;
 209         mdev->limits.reserved_eecs      = dev_lim->reserved_eecs;
 210         mdev->limits.max_desc_sz        = dev_lim->max_desc_sz;
 211         mdev->limits.max_srq_sge        = mthca_max_srq_sge(mdev);
 212         /*
 213          * Subtract 1 from the limit because we need to allocate a
 214          * spare CQE so the HCA HW can tell the difference between an
 215          * empty CQ and a full CQ.
 216          */
 217         mdev->limits.max_cqes           = dev_lim->max_cq_sz - 1;
 218         mdev->limits.reserved_cqs       = dev_lim->reserved_cqs;
 219         mdev->limits.reserved_eqs       = dev_lim->reserved_eqs;
 220         mdev->limits.reserved_mtts      = dev_lim->reserved_mtts;
 221         mdev->limits.reserved_mrws      = dev_lim->reserved_mrws;
 222         mdev->limits.reserved_uars      = dev_lim->reserved_uars;
 223         mdev->limits.reserved_pds       = dev_lim->reserved_pds;
 224         mdev->limits.port_width_cap     = dev_lim->max_port_width;
 225         mdev->limits.page_size_cap      = ~(u32) (dev_lim->min_page_sz - 1);
 226         mdev->limits.flags              = dev_lim->flags;
 227         /*
 228          * For old FW that doesn't return static rate support, use a
 229          * value of 0x3 (only static rate values of 0 or 1 are handled),
 230          * except on Sinai, where even old FW can handle static rate
 231          * values of 2 and 3.
 232          */
 233         if (dev_lim->stat_rate_support)
 234                 mdev->limits.stat_rate_support = dev_lim->stat_rate_support;
 235         else if (mdev->mthca_flags & MTHCA_FLAG_SINAI_OPT)
 236                 mdev->limits.stat_rate_support = 0xf;
 237         else
 238                 mdev->limits.stat_rate_support = 0x3;
 239
 240         /* IB_DEVICE_RESIZE_MAX_WR not supported by driver.
 241            May be doable since hardware supports it for SRQ.
 242
 243            IB_DEVICE_N_NOTIFY_CQ is supported by hardware but not by driver.
 244
 245            IB_DEVICE_SRQ_RESIZE is supported by hardware but SRQ is not
 246            supported by driver. */
 247         mdev->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT |
 248                 IB_DEVICE_PORT_ACTIVE_EVENT |
 249                 IB_DEVICE_SYS_IMAGE_GUID |
 250                 IB_DEVICE_RC_RNR_NAK_GEN;
 251
 252         if (dev_lim->flags & DEV_LIM_FLAG_BAD_PKEY_CNTR)
 253                 mdev->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR;
 254
 255         if (dev_lim->flags & DEV_LIM_FLAG_BAD_QKEY_CNTR)
 256                 mdev->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR;
 257
 258         if (dev_lim->flags & DEV_LIM_FLAG_RAW_MULTI)
 259                 mdev->device_cap_flags |= IB_DEVICE_RAW_MULTI;
 260
 261         if (dev_lim->flags & DEV_LIM_FLAG_AUTO_PATH_MIG)
 262                 mdev->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG;
 263
 264         if (dev_lim->flags & DEV_LIM_FLAG_UD_AV_PORT_ENFORCE)
 265                 mdev->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE;
 266
 267         if (dev_lim->flags & DEV_LIM_FLAG_SRQ)
 268                 mdev->mthca_flags |= MTHCA_FLAG_SRQ;
 269
 270         if (mthca_is_memfree(mdev))
 271                 if (dev_lim->flags & DEV_LIM_FLAG_IPOIB_CSUM)
 272                         mdev->device_cap_flags |= IB_DEVICE_UD_IP_CSUM;
 273
 274         return 0;
 275 }
 276
 277 static int mthca_init_tavor(struct mthca_dev *mdev)
 278 {
 279         s64 size;
 280         u8 status;
 281         int err;
 282         struct mthca_dev_lim        dev_lim;
 283         struct mthca_profile        profile;
 284         struct mthca_init_hca_param init_hca;
 285
 286         err = mthca_SYS_EN(mdev, &status);
 287         if (err) {
 288                 mthca_err(mdev, "SYS_EN command failed, aborting.\n");
 289                 return err;
 290         }
 291         if (status) {
 292                 mthca_err(mdev, "SYS_EN returned status 0x%02x, "
 293                           "aborting.\n", status);
 294                 return -EINVAL;
 295         }
 296
 297         err = mthca_QUERY_FW(mdev, &status);
 298         if (err) {
 299                 mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
 300                 goto err_disable;
 301         }
 302         if (status) {
 303                 mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
 304                           "aborting.\n", status);
 305                 err = -EINVAL;
 306                 goto err_disable;
 307         }
 308         err = mthca_QUERY_DDR(mdev, &status);
 309         if (err) {
 310                 mthca_err(mdev, "QUERY_DDR command failed, aborting.\n");
 311                 goto err_disable;
 312         }
 313         if (status) {
 314                 mthca_err(mdev, "QUERY_DDR returned status 0x%02x, "
 315                           "aborting.\n", status);
 316                 err = -EINVAL;
 317                 goto err_disable;
 318         }
 319
 320         err = mthca_dev_lim(mdev, &dev_lim);
 321         if (err) {
 322                 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
 323                 goto err_disable;
 324         }
 325
 326         profile = hca_profile;
 327         profile.num_uar   = dev_lim.uar_size / PAGE_SIZE;
 328         profile.uarc_size = 0;
 329         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 330                 profile.num_srq = dev_lim.max_srqs;
 331
 332         size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
 333         if (size < 0) {
 334                 err = size;
 335                 goto err_disable;
 336         }
 337
 338         err = mthca_INIT_HCA(mdev, &init_hca, &status);
 339         if (err) {
 340                 mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
 341                 goto err_disable;
 342         }
 343         if (status) {
 344                 mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
 345                           "aborting.\n", status);
 346                 err = -EINVAL;
 347                 goto err_disable;
 348         }
 349
 350         return 0;
 351
 352 err_disable:
 353         mthca_SYS_DIS(mdev, &status);
 354
 355         return err;
 356 }
 357
 358 static int mthca_load_fw(struct mthca_dev *mdev)
 359 {
 360         u8 status;
 361         int err;
 362
 363         /* FIXME: use HCA-attached memory for FW if present */
 364
 365         mdev->fw.arbel.fw_icm =
 366                 mthca_alloc_icm(mdev, mdev->fw.arbel.fw_pages,
 367                                 GFP_HIGHUSER | __GFP_NOWARN, 0);
 368         if (!mdev->fw.arbel.fw_icm) {
 369                 mthca_err(mdev, "Couldn't allocate FW area, aborting.\n");
 370                 return -ENOMEM;
 371         }
 372
 373         err = mthca_MAP_FA(mdev, mdev->fw.arbel.fw_icm, &status);
 374         if (err) {
 375                 mthca_err(mdev, "MAP_FA command failed, aborting.\n");
 376                 goto err_free;
 377         }
 378         if (status) {
 379                 mthca_err(mdev, "MAP_FA returned status 0x%02x, aborting.\n", status);
 380                 err = -EINVAL;
 381                 goto err_free;
 382         }
 383         err = mthca_RUN_FW(mdev, &status);
 384         if (err) {
 385                 mthca_err(mdev, "RUN_FW command failed, aborting.\n");
 386                 goto err_unmap_fa;
 387         }
 388         if (status) {
 389                 mthca_err(mdev, "RUN_FW returned status 0x%02x, aborting.\n", status);
 390                 err = -EINVAL;
 391                 goto err_unmap_fa;
 392         }
 393
 394         return 0;
 395
 396 err_unmap_fa:
 397         mthca_UNMAP_FA(mdev, &status);
 398
 399 err_free:
 400         mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
 401         return err;
 402 }
 403
 404 static int mthca_init_icm(struct mthca_dev *mdev,
 405                           struct mthca_dev_lim *dev_lim,
 406                           struct mthca_init_hca_param *init_hca,
 407                           u64 icm_size)
 408 {
 409         u64 aux_pages;
 410         u8 status;
 411         int err;
 412
 413         err = mthca_SET_ICM_SIZE(mdev, icm_size, &aux_pages, &status);
 414         if (err) {
 415                 mthca_err(mdev, "SET_ICM_SIZE command failed, aborting.\n");
 416                 return err;
 417         }
 418         if (status) {
 419                 mthca_err(mdev, "SET_ICM_SIZE returned status 0x%02x, "
 420                           "aborting.\n", status);
 421                 return -EINVAL;
 422         }
 423
 424         mthca_dbg(mdev, "%lld KB of HCA context requires %lld KB aux memory.\n",
 425                   (unsigned long long) icm_size >> 10,
 426                   (unsigned long long) aux_pages << 2);
 427
 428         mdev->fw.arbel.aux_icm = mthca_alloc_icm(mdev, aux_pages,
 429                                                  GFP_HIGHUSER | __GFP_NOWARN, 0);
 430         if (!mdev->fw.arbel.aux_icm) {
 431                 mthca_err(mdev, "Couldn't allocate aux memory, aborting.\n");
 432                 return -ENOMEM;
 433         }
 434
 435         err = mthca_MAP_ICM_AUX(mdev, mdev->fw.arbel.aux_icm, &status);
 436         if (err) {
 437                 mthca_err(mdev, "MAP_ICM_AUX command failed, aborting.\n");
 438                 goto err_free_aux;
 439         }
 440         if (status) {
 441                 mthca_err(mdev, "MAP_ICM_AUX returned status 0x%02x, aborting.\n", status);
 442                 err = -EINVAL;
 443                 goto err_free_aux;
 444         }
 445
 446         err = mthca_map_eq_icm(mdev, init_hca->eqc_base);
 447         if (err) {
 448                 mthca_err(mdev, "Failed to map EQ context memory, aborting.\n");
 449                 goto err_unmap_aux;
 450         }
 451
 452         /* CPU writes to non-reserved MTTs, while HCA might DMA to reserved mtts */
 453         mdev->limits.reserved_mtts = ALIGN(mdev->limits.reserved_mtts * MTHCA_MTT_SEG_SIZE,
 454                                            dma_get_cache_alignment()) / MTHCA_MTT_SEG_SIZE;
 455
 456         mdev->mr_table.mtt_table = mthca_alloc_icm_table(mdev, init_hca->mtt_base,
 457                                                          MTHCA_MTT_SEG_SIZE,
 458                                                          mdev->limits.num_mtt_segs,
 459                                                          mdev->limits.reserved_mtts,
 460                                                          1, 0);
 461         if (!mdev->mr_table.mtt_table) {
 462                 mthca_err(mdev, "Failed to map MTT context memory, aborting.\n");
 463                 err = -ENOMEM;
 464                 goto err_unmap_eq;
 465         }
 466
 467         mdev->mr_table.mpt_table = mthca_alloc_icm_table(mdev, init_hca->mpt_base,
 468                                                          dev_lim->mpt_entry_sz,
 469                                                          mdev->limits.num_mpts,
 470                                                          mdev->limits.reserved_mrws,
 471                                                          1, 1);
 472         if (!mdev->mr_table.mpt_table) {
 473                 mthca_err(mdev, "Failed to map MPT context memory, aborting.\n");
 474                 err = -ENOMEM;
 475                 goto err_unmap_mtt;
 476         }
 477
 478         mdev->qp_table.qp_table = mthca_alloc_icm_table(mdev, init_hca->qpc_base,
 479                                                         dev_lim->qpc_entry_sz,
 480                                                         mdev->limits.num_qps,
 481                                                         mdev->limits.reserved_qps,
 482                                                         0, 0);
 483         if (!mdev->qp_table.qp_table) {
 484                 mthca_err(mdev, "Failed to map QP context memory, aborting.\n");
 485                 err = -ENOMEM;
 486                 goto err_unmap_mpt;
 487         }
 488
 489         mdev->qp_table.eqp_table = mthca_alloc_icm_table(mdev, init_hca->eqpc_base,
 490                                                          dev_lim->eqpc_entry_sz,
 491                                                          mdev->limits.num_qps,
 492                                                          mdev->limits.reserved_qps,
 493                                                          0, 0);
 494         if (!mdev->qp_table.eqp_table) {
 495                 mthca_err(mdev, "Failed to map EQP context memory, aborting.\n");
 496                 err = -ENOMEM;
 497                 goto err_unmap_qp;
 498         }
 499
 500         mdev->qp_table.rdb_table = mthca_alloc_icm_table(mdev, init_hca->rdb_base,
 501                                                          MTHCA_RDB_ENTRY_SIZE,
 502                                                          mdev->limits.num_qps <<
 503                                                          mdev->qp_table.rdb_shift, 0,
 504                                                          0, 0);
 505         if (!mdev->qp_table.rdb_table) {
 506                 mthca_err(mdev, "Failed to map RDB context memory, aborting\n");
 507                 err = -ENOMEM;
 508                 goto err_unmap_eqp;
 509         }
 510
 511        mdev->cq_table.table = mthca_alloc_icm_table(mdev, init_hca->cqc_base,
 512                                                     dev_lim->cqc_entry_sz,
 513                                                     mdev->limits.num_cqs,
 514                                                     mdev->limits.reserved_cqs,
 515                                                     0, 0);
 516         if (!mdev->cq_table.table) {
 517                 mthca_err(mdev, "Failed to map CQ context memory, aborting.\n");
 518                 err = -ENOMEM;
 519                 goto err_unmap_rdb;
 520         }
 521
 522         if (mdev->mthca_flags & MTHCA_FLAG_SRQ) {
 523                 mdev->srq_table.table =
 524                         mthca_alloc_icm_table(mdev, init_hca->srqc_base,
 525                                               dev_lim->srq_entry_sz,
 526                                               mdev->limits.num_srqs,
 527                                               mdev->limits.reserved_srqs,
 528                                               0, 0);
 529                 if (!mdev->srq_table.table) {
 530                         mthca_err(mdev, "Failed to map SRQ context memory, "
 531                                   "aborting.\n");
 532                         err = -ENOMEM;
 533                         goto err_unmap_cq;
 534                 }
 535         }
 536
 537         /*
 538          * It's not strictly required, but for simplicity just map the
 539          * whole multicast group table now.  The table isn't very big
 540          * and it's a lot easier than trying to track ref counts.
 541          */
 542         mdev->mcg_table.table = mthca_alloc_icm_table(mdev, init_hca->mc_base,
 543                                                       MTHCA_MGM_ENTRY_SIZE,
 544                                                       mdev->limits.num_mgms +
 545                                                       mdev->limits.num_amgms,
 546                                                       mdev->limits.num_mgms +
 547                                                       mdev->limits.num_amgms,
 548                                                       0, 0);
 549         if (!mdev->mcg_table.table) {
 550                 mthca_err(mdev, "Failed to map MCG context memory, aborting.\n");
 551                 err = -ENOMEM;
 552                 goto err_unmap_srq;
 553         }
 554
 555         return 0;
 556
 557 err_unmap_srq:
 558         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 559                 mthca_free_icm_table(mdev, mdev->srq_table.table);
 560
 561 err_unmap_cq:
 562         mthca_free_icm_table(mdev, mdev->cq_table.table);
 563
 564 err_unmap_rdb:
 565         mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
 566
 567 err_unmap_eqp:
 568         mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
 569
 570 err_unmap_qp:
 571         mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
 572
 573 err_unmap_mpt:
 574         mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
 575
 576 err_unmap_mtt:
 577         mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
 578
 579 err_unmap_eq:
 580         mthca_unmap_eq_icm(mdev);
 581
 582 err_unmap_aux:
 583         mthca_UNMAP_ICM_AUX(mdev, &status);
 584
 585 err_free_aux:
 586         mthca_free_icm(mdev, mdev->fw.arbel.aux_icm, 0);
 587
 588         return err;
 589 }
 590
 591 static void mthca_free_icms(struct mthca_dev *mdev)
 592 {
 593         u8 status;
 594
 595         mthca_free_icm_table(mdev, mdev->mcg_table.table);
 596         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 597                 mthca_free_icm_table(mdev, mdev->srq_table.table);
 598         mthca_free_icm_table(mdev, mdev->cq_table.table);
 599         mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
 600         mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
 601         mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
 602         mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
 603         mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
 604         mthca_unmap_eq_icm(mdev);
 605
 606         mthca_UNMAP_ICM_AUX(mdev, &status);
 607         mthca_free_icm(mdev, mdev->fw.arbel.aux_icm, 0);
 608 }
 609
 610 static int mthca_init_arbel(struct mthca_dev *mdev)
 611 {
 612         struct mthca_dev_lim        dev_lim;
 613         struct mthca_profile        profile;
 614         struct mthca_init_hca_param init_hca;
 615         s64 icm_size;
 616         u8 status;
 617         int err;
 618
 619         err = mthca_QUERY_FW(mdev, &status);
 620         if (err) {
 621                 mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
 622                 return err;
 623         }
 624         if (status) {
 625                 mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
 626                           "aborting.\n", status);
 627                 return -EINVAL;
 628         }
 629
 630         err = mthca_ENABLE_LAM(mdev, &status);
 631         if (err) {
 632                 mthca_err(mdev, "ENABLE_LAM command failed, aborting.\n");
 633                 return err;
 634         }
 635         if (status == MTHCA_CMD_STAT_LAM_NOT_PRE) {
 636                 mthca_dbg(mdev, "No HCA-attached memory (running in MemFree mode)\n");
 637                 mdev->mthca_flags |= MTHCA_FLAG_NO_LAM;
 638         } else if (status) {
 639                 mthca_err(mdev, "ENABLE_LAM returned status 0x%02x, "
 640                           "aborting.\n", status);
 641                 return -EINVAL;
 642         }
 643
 644         err = mthca_load_fw(mdev);
 645         if (err) {
 646                 mthca_err(mdev, "Failed to start FW, aborting.\n");
 647                 goto err_disable;
 648         }
 649
 650         err = mthca_dev_lim(mdev, &dev_lim);
 651         if (err) {
 652                 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
 653                 goto err_stop_fw;
 654         }
 655
 656         profile = hca_profile;
 657         profile.num_uar  = dev_lim.uar_size / PAGE_SIZE;
 658         profile.num_udav = 0;
 659         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 660                 profile.num_srq = dev_lim.max_srqs;
 661
 662         icm_size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
 663         if (icm_size < 0) {
 664                 err = icm_size;
 665                 goto err_stop_fw;
 666         }
 667
 668         err = mthca_init_icm(mdev, &dev_lim, &init_hca, icm_size);
 669         if (err)
 670                 goto err_stop_fw;
 671
 672         err = mthca_INIT_HCA(mdev, &init_hca, &status);
 673         if (err) {
 674                 mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
 675                 goto err_free_icm;
 676         }
 677         if (status) {
 678                 mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
 679                           "aborting.\n", status);
 680                 err = -EINVAL;
 681                 goto err_free_icm;
 682         }
 683
 684         return 0;
 685
 686 err_free_icm:
 687         mthca_free_icms(mdev);
 688
 689 err_stop_fw:
 690         mthca_UNMAP_FA(mdev, &status);
 691         mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
 692
 693 err_disable:
 694         if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
 695                 mthca_DISABLE_LAM(mdev, &status);
 696
 697         return err;
 698 }
 699
 700 static void mthca_close_hca(struct mthca_dev *mdev)
 701 {
 702         u8 status;
 703
 704         mthca_CLOSE_HCA(mdev, 0, &status);
 705
 706         if (mthca_is_memfree(mdev)) {
 707                 mthca_free_icms(mdev);
 708
 709                 mthca_UNMAP_FA(mdev, &status);
 710                 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
 711
 712                 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
 713                         mthca_DISABLE_LAM(mdev, &status);
 714         } else
 715                 mthca_SYS_DIS(mdev, &status);
 716 }
 717
 718 static int mthca_init_hca(struct mthca_dev *mdev)
 719 {
 720         u8 status;
 721         int err;
 722         struct mthca_adapter adapter;
 723
 724         if (mthca_is_memfree(mdev))
 725                 err = mthca_init_arbel(mdev);
 726         else
 727                 err = mthca_init_tavor(mdev);
 728
 729         if (err)
 730                 return err;
 731
 732         err = mthca_QUERY_ADAPTER(mdev, &adapter, &status);
 733         if (err) {
 734                 mthca_err(mdev, "QUERY_ADAPTER command failed, aborting.\n");
 735                 goto err_close;
 736         }
 737         if (status) {
 738                 mthca_err(mdev, "QUERY_ADAPTER returned status 0x%02x, "
 739                           "aborting.\n", status);
 740                 err = -EINVAL;
 741                 goto err_close;
 742         }
 743
 744         mdev->eq_table.inta_pin = adapter.inta_pin;
 745         if (!mthca_is_memfree(mdev))
 746                 mdev->rev_id = adapter.revision_id;
 747         memcpy(mdev->board_id, adapter.board_id, sizeof mdev->board_id);
 748
 749         return 0;
 750
 751 err_close:
 752         mthca_close_hca(mdev);
 753         return err;
 754 }
 755
 756 static int mthca_setup_hca(struct mthca_dev *dev)
 757 {
 758         int err;
 759         u8 status;
 760
 761         MTHCA_INIT_DOORBELL_LOCK(&dev->doorbell_lock);
 762
 763         err = mthca_init_uar_table(dev);
 764         if (err) {
 765                 mthca_err(dev, "Failed to initialize "
 766                           "user access region table, aborting.\n");
 767                 return err;
 768         }
 769
 770         err = mthca_uar_alloc(dev, &dev->driver_uar);
 771         if (err) {
 772                 mthca_err(dev, "Failed to allocate driver access region, "
 773                           "aborting.\n");
 774                 goto err_uar_table_free;
 775         }
 776
 777         dev->kar = ioremap(dev->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
 778         if (!dev->kar) {
 779                 mthca_err(dev, "Couldn't map kernel access region, "
 780                           "aborting.\n");
 781                 err = -ENOMEM;
 782                 goto err_uar_free;
 783         }
 784
 785         err = mthca_init_pd_table(dev);
 786         if (err) {
 787                 mthca_err(dev, "Failed to initialize "
 788                           "protection domain table, aborting.\n");
 789                 goto err_kar_unmap;
 790         }
 791
 792         err = mthca_init_mr_table(dev);
 793         if (err) {
 794                 mthca_err(dev, "Failed to initialize "
 795                           "memory region table, aborting.\n");
 796                 goto err_pd_table_free;
 797         }
 798
 799         err = mthca_pd_alloc(dev, 1, &dev->driver_pd);
 800         if (err) {
 801                 mthca_err(dev, "Failed to create driver PD, "
 802                           "aborting.\n");
 803                 goto err_mr_table_free;
 804         }
 805
 806         err = mthca_init_eq_table(dev);
 807         if (err) {
 808                 mthca_err(dev, "Failed to initialize "
 809                           "event queue table, aborting.\n");
 810                 goto err_pd_free;
 811         }
 812
 813         err = mthca_cmd_use_events(dev);
 814         if (err) {
 815                 mthca_err(dev, "Failed to switch to event-driven "
 816                           "firmware commands, aborting.\n");
 817                 goto err_eq_table_free;
 818         }
 819
 820         err = mthca_NOP(dev, &status);
 821         if (err || status) {
 822                 if (dev->mthca_flags & MTHCA_FLAG_MSI_X) {
 823                         mthca_warn(dev, "NOP command failed to generate interrupt "
 824                                    "(IRQ %d).\n",
 825                                    dev->eq_table.eq[MTHCA_EQ_CMD].msi_x_vector);
 826                         mthca_warn(dev, "Trying again with MSI-X disabled.\n");
 827                 } else {
 828                         mthca_err(dev, "NOP command failed to generate interrupt "
 829                                   "(IRQ %d), aborting.\n",
 830                                   dev->pdev->irq);
 831                         mthca_err(dev, "BIOS or ACPI interrupt routing problem?\n");
 832                 }
 833
 834                 goto err_cmd_poll;
 835         }
 836
 837         mthca_dbg(dev, "NOP command IRQ test passed\n");
 838
 839         err = mthca_init_cq_table(dev);
 840         if (err) {
 841                 mthca_err(dev, "Failed to initialize "
 842                           "completion queue table, aborting.\n");
 843                 goto err_cmd_poll;
 844         }
 845
 846         err = mthca_init_srq_table(dev);
 847         if (err) {
 848                 mthca_err(dev, "Failed to initialize "
 849                           "shared receive queue table, aborting.\n");
 850                 goto err_cq_table_free;
 851         }
 852
 853         err = mthca_init_qp_table(dev);
 854         if (err) {
 855                 mthca_err(dev, "Failed to initialize "
 856                           "queue pair table, aborting.\n");
 857                 goto err_srq_table_free;
 858         }
 859
 860         err = mthca_init_av_table(dev);
 861         if (err) {
 862                 mthca_err(dev, "Failed to initialize "
 863                           "address vector table, aborting.\n");
 864                 goto err_qp_table_free;
 865         }
 866
 867         err = mthca_init_mcg_table(dev);
 868         if (err) {
 869                 mthca_err(dev, "Failed to initialize "
 870                           "multicast group table, aborting.\n");
 871                 goto err_av_table_free;
 872         }
 873
 874         return 0;
 875
 876 err_av_table_free:
 877         mthca_cleanup_av_table(dev);
 878
 879 err_qp_table_free:
 880         mthca_cleanup_qp_table(dev);
 881
 882 err_srq_table_free:
 883         mthca_cleanup_srq_table(dev);
 884
 885 err_cq_table_free:
 886         mthca_cleanup_cq_table(dev);
 887
 888 err_cmd_poll:
 889         mthca_cmd_use_polling(dev);
 890
 891 err_eq_table_free:
 892         mthca_cleanup_eq_table(dev);
 893
 894 err_pd_free:
 895         mthca_pd_free(dev, &dev->driver_pd);
 896
 897 err_mr_table_free:
 898         mthca_cleanup_mr_table(dev);
 899
 900 err_pd_table_free:
 901         mthca_cleanup_pd_table(dev);
 902
 903 err_kar_unmap:
 904         iounmap(dev->kar);
 905
 906 err_uar_free:
 907         mthca_uar_free(dev, &dev->driver_uar);
 908
 909 err_uar_table_free:
 910         mthca_cleanup_uar_table(dev);
 911         return err;
 912 }
 913
 914 static int mthca_request_regions(struct pci_dev *pdev, int ddr_hidden)
 915 {
 916         int err;
 917
 918         /*
 919          * We can't just use pci_request_regions() because the MSI-X
 920          * table is right in the middle of the first BAR.  If we did
 921          * pci_request_region and grab all of the first BAR, then
 922          * setting up MSI-X would fail, since the PCI core wants to do
 923          * request_mem_region on the MSI-X vector table.
 924          *
 925          * So just request what we need right now, and request any
 926          * other regions we need when setting up EQs.
 927          */
 928         if (!request_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
 929                                 MTHCA_HCR_SIZE, DRV_NAME))
 930                 return -EBUSY;
 931
 932         err = pci_request_region(pdev, 2, DRV_NAME);
 933         if (err)
 934                 goto err_bar2_failed;
 935
 936         if (!ddr_hidden) {
 937                 err = pci_request_region(pdev, 4, DRV_NAME);
 938                 if (err)
 939                         goto err_bar4_failed;
 940         }
 941
 942         return 0;
 943
 944 err_bar4_failed:
 945         pci_release_region(pdev, 2);
 946
 947 err_bar2_failed:
 948         release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
 949                            MTHCA_HCR_SIZE);
 950
 951         return err;
 952 }
 953
 954 static void mthca_release_regions(struct pci_dev *pdev,
 955                                   int ddr_hidden)
 956 {
 957         if (!ddr_hidden)
 958                 pci_release_region(pdev, 4);
 959
 960         pci_release_region(pdev, 2);
 961
 962         release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
 963                            MTHCA_HCR_SIZE);
 964 }
 965
 966 static int mthca_enable_msi_x(struct mthca_dev *mdev)
 967 {
 968         struct msix_entry entries[3];
 969         int err;
 970
 971         entries[0].entry = 0;
 972         entries[1].entry = 1;
 973         entries[2].entry = 2;
 974
 975         err = pci_enable_msix(mdev->pdev, entries, ARRAY_SIZE(entries));
 976         if (err) {
 977                 if (err > 0)
 978                         mthca_info(mdev, "Only %d MSI-X vectors available, "
 979                                    "not using MSI-X\n", err);
 980                 return err;
 981         }
 982
 983         mdev->eq_table.eq[MTHCA_EQ_COMP ].msi_x_vector = entries[0].vector;
 984         mdev->eq_table.eq[MTHCA_EQ_ASYNC].msi_x_vector = entries[1].vector;
 985         mdev->eq_table.eq[MTHCA_EQ_CMD  ].msi_x_vector = entries[2].vector;
 986
 987         return 0;
 988 }
 989
 990 /* Types of supported HCA */
 991 enum {
 992         TAVOR,                  /* MT23108                        */
 993         ARBEL_COMPAT,           /* MT25208 in Tavor compat mode   */
 994         ARBEL_NATIVE,           /* MT25208 with extended features */
 995         SINAI                   /* MT25204 */
 996 };
 997
 998 #define MTHCA_FW_VER(major, minor, subminor) \
 999         (((u64) (major) << 32) | ((u64) (minor) << 16) | (u64) (subminor))
1000
1001 static struct {
1002         u64 latest_fw;
1003         u32 flags;
1004 } mthca_hca_table[] = {
1005         [TAVOR]        = { .latest_fw = MTHCA_FW_VER(3, 5, 0),
1006                            .flags     = 0 },
1007         [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 8, 200),
1008                            .flags     = MTHCA_FLAG_PCIE },
1009         [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 3, 0),
1010                            .flags     = MTHCA_FLAG_MEMFREE |
1011                                         MTHCA_FLAG_PCIE },
1012         [SINAI]        = { .latest_fw = MTHCA_FW_VER(1, 2, 0),
1013                            .flags     = MTHCA_FLAG_MEMFREE |
1014                                         MTHCA_FLAG_PCIE    |
1015                                         MTHCA_FLAG_SINAI_OPT }
1016 };
1017
1018 static int __mthca_init_one(struct pci_dev *pdev, int hca_type)
1019 {
1020         int ddr_hidden = 0;
1021         int err;
1022         struct mthca_dev *mdev;
1023
1024         printk(KERN_INFO PFX "Initializing %s\n",
1025                pci_name(pdev));
1026
1027         err = pci_enable_device(pdev);
1028         if (err) {
1029                 dev_err(&pdev->dev, "Cannot enable PCI device, "
1030                         "aborting.\n");
1031                 return err;
1032         }
1033
1034         /*
1035          * Check for BARs.  We expect 0: 1MB, 2: 8MB, 4: DDR (may not
1036          * be present)
1037          */
1038         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) ||
1039             pci_resource_len(pdev, 0) != 1 << 20) {
1040                 dev_err(&pdev->dev, "Missing DCS, aborting.\n");
1041                 err = -ENODEV;
1042                 goto err_disable_pdev;
1043         }
1044         if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
1045                 dev_err(&pdev->dev, "Missing UAR, aborting.\n");
1046                 err = -ENODEV;
1047                 goto err_disable_pdev;
1048         }
1049         if (!(pci_resource_flags(pdev, 4) & IORESOURCE_MEM))
1050                 ddr_hidden = 1;
1051
1052         err = mthca_request_regions(pdev, ddr_hidden);
1053         if (err) {
1054                 dev_err(&pdev->dev, "Cannot obtain PCI resources, "
1055                         "aborting.\n");
1056                 goto err_disable_pdev;
1057         }
1058
1059         pci_set_master(pdev);
1060
1061         err = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
1062         if (err) {
1063                 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n");
1064                 err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
1065                 if (err) {
1066                         dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n");
1067                         goto err_free_res;
1068                 }
1069         }
1070         err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
1071         if (err) {
1072                 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit "
1073                          "consistent PCI DMA mask.\n");
1074                 err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
1075                 if (err) {
1076                         dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
1077                                 "aborting.\n");
1078                         goto err_free_res;
1079                 }
1080         }
1081
1082         mdev = (struct mthca_dev *) ib_alloc_device(sizeof *mdev);
1083         if (!mdev) {
1084                 dev_err(&pdev->dev, "Device struct alloc failed, "
1085                         "aborting.\n");
1086                 err = -ENOMEM;
1087                 goto err_free_res;
1088         }
1089
1090         mdev->pdev = pdev;
1091
1092         mdev->mthca_flags = mthca_hca_table[hca_type].flags;
1093         if (ddr_hidden)
1094                 mdev->mthca_flags |= MTHCA_FLAG_DDR_HIDDEN;
1095
1096         /*
1097          * Now reset the HCA before we touch the PCI capabilities or
1098          * attempt a firmware command, since a boot ROM may have left
1099          * the HCA in an undefined state.
1100          */
1101         err = mthca_reset(mdev);
1102         if (err) {
1103                 mthca_err(mdev, "Failed to reset HCA, aborting.\n");
1104                 goto err_free_dev;
1105         }
1106
1107         if (mthca_cmd_init(mdev)) {
1108                 mthca_err(mdev, "Failed to init command interface, aborting.\n");
1109                 goto err_free_dev;
1110         }
1111
1112         err = mthca_tune_pci(mdev);
1113         if (err)
1114                 goto err_cmd;
1115
1116         err = mthca_init_hca(mdev);
1117         if (err)
1118                 goto err_cmd;
1119
1120         if (mdev->fw_ver < mthca_hca_table[hca_type].latest_fw) {
1121                 mthca_warn(mdev, "HCA FW version %d.%d.%03d is old (%d.%d.%03d is current).\n",
1122                            (int) (mdev->fw_ver >> 32), (int) (mdev->fw_ver >> 16) & 0xffff,
1123                            (int) (mdev->fw_ver & 0xffff),
1124                            (int) (mthca_hca_table[hca_type].latest_fw >> 32),
1125                            (int) (mthca_hca_table[hca_type].latest_fw >> 16) & 0xffff,
1126                            (int) (mthca_hca_table[hca_type].latest_fw & 0xffff));
1127                 mthca_warn(mdev, "If you have problems, try updating your HCA FW.\n");
1128         }
1129
1130         if (msi_x && !mthca_enable_msi_x(mdev))
1131                 mdev->mthca_flags |= MTHCA_FLAG_MSI_X;
1132
1133         err = mthca_setup_hca(mdev);
1134         if (err == -EBUSY && (mdev->mthca_flags & MTHCA_FLAG_MSI_X)) {
1135                 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1136                         pci_disable_msix(pdev);
1137                 mdev->mthca_flags &= ~MTHCA_FLAG_MSI_X;
1138
1139                 err = mthca_setup_hca(mdev);
1140         }
1141
1142         if (err)
1143                 goto err_close;
1144
1145         err = mthca_register_device(mdev);
1146         if (err)
1147                 goto err_cleanup;
1148
1149         err = mthca_create_agents(mdev);
1150         if (err)
1151                 goto err_unregister;
1152
1153         pci_set_drvdata(pdev, mdev);
1154         mdev->hca_type = hca_type;
1155
1156         return 0;
1157
1158 err_unregister:
1159         mthca_unregister_device(mdev);
1160
1161 err_cleanup:
1162         mthca_cleanup_mcg_table(mdev);
1163         mthca_cleanup_av_table(mdev);
1164         mthca_cleanup_qp_table(mdev);
1165         mthca_cleanup_srq_table(mdev);
1166         mthca_cleanup_cq_table(mdev);
1167         mthca_cmd_use_polling(mdev);
1168         mthca_cleanup_eq_table(mdev);
1169
1170         mthca_pd_free(mdev, &mdev->driver_pd);
1171
1172         mthca_cleanup_mr_table(mdev);
1173         mthca_cleanup_pd_table(mdev);
1174         mthca_cleanup_uar_table(mdev);
1175
1176 err_close:
1177         if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1178                 pci_disable_msix(pdev);
1179
1180         mthca_close_hca(mdev);
1181
1182 err_cmd:
1183         mthca_cmd_cleanup(mdev);
1184
1185 err_free_dev:
1186         ib_dealloc_device(&mdev->ib_dev);
1187
1188 err_free_res:
1189         mthca_release_regions(pdev, ddr_hidden);
1190
1191 err_disable_pdev:
1192         pci_disable_device(pdev);
1193         pci_set_drvdata(pdev, NULL);
1194         return err;
1195 }
1196
1197 static void __mthca_remove_one(struct pci_dev *pdev)
1198 {
1199         struct mthca_dev *mdev = pci_get_drvdata(pdev);
1200         u8 status;
1201         int p;
1202
1203         if (mdev) {
1204                 mthca_free_agents(mdev);
1205                 mthca_unregister_device(mdev);
1206
1207                 for (p = 1; p <= mdev->limits.num_ports; ++p)
1208                         mthca_CLOSE_IB(mdev, p, &status);
1209
1210                 mthca_cleanup_mcg_table(mdev);
1211                 mthca_cleanup_av_table(mdev);
1212                 mthca_cleanup_qp_table(mdev);
1213                 mthca_cleanup_srq_table(mdev);
1214                 mthca_cleanup_cq_table(mdev);
1215                 mthca_cmd_use_polling(mdev);
1216                 mthca_cleanup_eq_table(mdev);
1217
1218                 mthca_pd_free(mdev, &mdev->driver_pd);
1219
1220                 mthca_cleanup_mr_table(mdev);
1221                 mthca_cleanup_pd_table(mdev);
1222
1223                 iounmap(mdev->kar);
1224                 mthca_uar_free(mdev, &mdev->driver_uar);
1225                 mthca_cleanup_uar_table(mdev);
1226                 mthca_close_hca(mdev);
1227                 mthca_cmd_cleanup(mdev);
1228
1229                 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1230                         pci_disable_msix(pdev);
1231
1232                 ib_dealloc_device(&mdev->ib_dev);
1233                 mthca_release_regions(pdev, mdev->mthca_flags &
1234                                       MTHCA_FLAG_DDR_HIDDEN);
1235                 pci_disable_device(pdev);
1236                 pci_set_drvdata(pdev, NULL);
1237         }
1238 }
1239
1240 int __mthca_restart_one(struct pci_dev *pdev)
1241 {
1242         struct mthca_dev *mdev;
1243         int hca_type;
1244
1245         mdev = pci_get_drvdata(pdev);
1246         if (!mdev)
1247                 return -ENODEV;
1248         hca_type = mdev->hca_type;
1249         __mthca_remove_one(pdev);
1250         return __mthca_init_one(pdev, hca_type);
1251 }
1252
1253 static int __devinit mthca_init_one(struct pci_dev *pdev,
1254                                     const struct pci_device_id *id)
1255 {
1256         static int mthca_version_printed = 0;
1257         int ret;
1258
1259         mutex_lock(&mthca_device_mutex);
1260
1261         if (!mthca_version_printed) {
1262                 printk(KERN_INFO "%s", mthca_version);
1263                 ++mthca_version_printed;
1264         }
1265
1266         if (id->driver_data >= ARRAY_SIZE(mthca_hca_table)) {
1267                 printk(KERN_ERR PFX "%s has invalid driver data %lx\n",
1268                        pci_name(pdev), id->driver_data);
1269                 mutex_unlock(&mthca_device_mutex);
1270                 return -ENODEV;
1271         }
1272
1273         ret = __mthca_init_one(pdev, id->driver_data);
1274
1275         mutex_unlock(&mthca_device_mutex);
1276
1277         return ret;
1278 }
1279
1280 static void __devexit mthca_remove_one(struct pci_dev *pdev)
1281 {
1282         mutex_lock(&mthca_device_mutex);
1283         __mthca_remove_one(pdev);
1284         mutex_unlock(&mthca_device_mutex);
1285 }
1286
1287 static struct pci_device_id mthca_pci_table[] = {
1288         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR),
1289           .driver_data = TAVOR },
1290         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_TAVOR),
1291           .driver_data = TAVOR },
1292         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1293           .driver_data = ARBEL_COMPAT },
1294         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1295           .driver_data = ARBEL_COMPAT },
1296         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL),
1297           .driver_data = ARBEL_NATIVE },
1298         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL),
1299           .driver_data = ARBEL_NATIVE },
1300         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI),
1301           .driver_data = SINAI },
1302         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI),
1303           .driver_data = SINAI },
1304         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1305           .driver_data = SINAI },
1306         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1307           .driver_data = SINAI },
1308         { 0, }
1309 };
1310
1311 MODULE_DEVICE_TABLE(pci, mthca_pci_table);
1312
1313 static struct pci_driver mthca_driver = {
1314         .name           = DRV_NAME,
1315         .id_table       = mthca_pci_table,
1316         .probe          = mthca_init_one,
1317         .remove         = __devexit_p(mthca_remove_one)
1318 };
1319
1320 static void __init __mthca_check_profile_val(const char *name, int *pval,
1321                                              int pval_default)
1322 {
1323         /* value must be positive and power of 2 */
1324         int old_pval = *pval;
1325
1326         if (old_pval <= 0)
1327                 *pval = pval_default;
1328         else
1329                 *pval = roundup_pow_of_two(old_pval);
1330
1331         if (old_pval != *pval) {
1332                 printk(KERN_WARNING PFX "Invalid value %d for %s in module parameter.\n",
1333                        old_pval, name);
1334                 printk(KERN_WARNING PFX "Corrected %s to %d.\n", name, *pval);
1335         }
1336 }
1337
1338 #define mthca_check_profile_val(name, default)                          \
1339         __mthca_check_profile_val(#name, &hca_profile.name, default)
1340
1341 static void __init mthca_validate_profile(void)
1342 {
1343         mthca_check_profile_val(num_qp,            MTHCA_DEFAULT_NUM_QP);
1344         mthca_check_profile_val(rdb_per_qp,        MTHCA_DEFAULT_RDB_PER_QP);
1345         mthca_check_profile_val(num_cq,            MTHCA_DEFAULT_NUM_CQ);
1346         mthca_check_profile_val(num_mcg,           MTHCA_DEFAULT_NUM_MCG);
1347         mthca_check_profile_val(num_mpt,           MTHCA_DEFAULT_NUM_MPT);
1348         mthca_check_profile_val(num_mtt,           MTHCA_DEFAULT_NUM_MTT);
1349         mthca_check_profile_val(num_udav,          MTHCA_DEFAULT_NUM_UDAV);
1350         mthca_check_profile_val(fmr_reserved_mtts, MTHCA_DEFAULT_NUM_RESERVED_MTTS);
1351
1352         if (hca_profile.fmr_reserved_mtts >= hca_profile.num_mtt) {
1353                 printk(KERN_WARNING PFX "Invalid fmr_reserved_mtts module parameter %d.\n",
1354                        hca_profile.fmr_reserved_mtts);
1355                 printk(KERN_WARNING PFX "(Must be smaller than num_mtt %d)\n",
1356                        hca_profile.num_mtt);
1357                 hca_profile.fmr_reserved_mtts = hca_profile.num_mtt / 2;
1358                 printk(KERN_WARNING PFX "Corrected fmr_reserved_mtts to %d.\n",
1359                        hca_profile.fmr_reserved_mtts);
1360         }
1361 }
1362
1363 static int __init mthca_init(void)
1364 {
1365         int ret;
1366
1367         mthca_validate_profile();
1368
1369         ret = mthca_catas_init();
1370         if (ret)
1371                 return ret;
1372
1373         ret = pci_register_driver(&mthca_driver);
1374         if (ret < 0) {
1375                 mthca_catas_cleanup();
1376                 return ret;
1377         }
1378
1379         return 0;
1380 }
1381
1382 static void __exit mthca_cleanup(void)
1383 {
1384         pci_unregister_driver(&mthca_driver);
1385         mthca_catas_cleanup();
1386 }
1387
1388 module_init(mthca_init);
1389 module_exit(mthca_cleanup);