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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 #include "mthca_wqe.h"
  49
  50 MODULE_AUTHOR("Roland Dreier");
  51 MODULE_DESCRIPTION("Mellanox InfiniBand HCA low-level driver");
  52 MODULE_LICENSE("Dual BSD/GPL");
  53 MODULE_VERSION(DRV_VERSION);
  54
  55 #ifdef CONFIG_INFINIBAND_MTHCA_DEBUG
  56
  57 int mthca_debug_level = 0;
  58 module_param_named(debug_level, mthca_debug_level, int, 0644);
  59 MODULE_PARM_DESC(debug_level, "Enable debug tracing if > 0");
  60
  61 #endif /* CONFIG_INFINIBAND_MTHCA_DEBUG */
  62
  63 #ifdef CONFIG_PCI_MSI
  64
  65 static int msi_x = 1;
  66 module_param(msi_x, int, 0444);
  67 MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero");
  68
  69 #else /* CONFIG_PCI_MSI */
  70
  71 #define msi_x (0)
  72
  73 #endif /* CONFIG_PCI_MSI */
  74
  75 static int tune_pci = 0;
  76 module_param(tune_pci, int, 0444);
  77 MODULE_PARM_DESC(tune_pci, "increase PCI burst from the default set by BIOS if nonzero");
  78
  79 DEFINE_MUTEX(mthca_device_mutex);
  80
  81 #define MTHCA_DEFAULT_NUM_QP            (1 << 16)
  82 #define MTHCA_DEFAULT_RDB_PER_QP        (1 << 2)
  83 #define MTHCA_DEFAULT_NUM_CQ            (1 << 16)
  84 #define MTHCA_DEFAULT_NUM_MCG           (1 << 13)
  85 #define MTHCA_DEFAULT_NUM_MPT           (1 << 17)
  86 #define MTHCA_DEFAULT_NUM_MTT           (1 << 20)
  87 #define MTHCA_DEFAULT_NUM_UDAV          (1 << 15)
  88 #define MTHCA_DEFAULT_NUM_RESERVED_MTTS (1 << 18)
  89 #define MTHCA_DEFAULT_NUM_UARC_SIZE     (1 << 18)
  90
  91 static struct mthca_profile hca_profile = {
  92         .num_qp             = MTHCA_DEFAULT_NUM_QP,
  93         .rdb_per_qp         = MTHCA_DEFAULT_RDB_PER_QP,
  94         .num_cq             = MTHCA_DEFAULT_NUM_CQ,
  95         .num_mcg            = MTHCA_DEFAULT_NUM_MCG,
  96         .num_mpt            = MTHCA_DEFAULT_NUM_MPT,
  97         .num_mtt            = MTHCA_DEFAULT_NUM_MTT,
  98         .num_udav           = MTHCA_DEFAULT_NUM_UDAV,          /* Tavor only */
  99         .fmr_reserved_mtts  = MTHCA_DEFAULT_NUM_RESERVED_MTTS, /* Tavor only */
 100         .uarc_size          = MTHCA_DEFAULT_NUM_UARC_SIZE,     /* Arbel only */
 101 };
 102
 103 module_param_named(num_qp, hca_profile.num_qp, int, 0444);
 104 MODULE_PARM_DESC(num_qp, "maximum number of QPs per HCA");
 105
 106 module_param_named(rdb_per_qp, hca_profile.rdb_per_qp, int, 0444);
 107 MODULE_PARM_DESC(rdb_per_qp, "number of RDB buffers per QP");
 108
 109 module_param_named(num_cq, hca_profile.num_cq, int, 0444);
 110 MODULE_PARM_DESC(num_cq, "maximum number of CQs per HCA");
 111
 112 module_param_named(num_mcg, hca_profile.num_mcg, int, 0444);
 113 MODULE_PARM_DESC(num_mcg, "maximum number of multicast groups per HCA");
 114
 115 module_param_named(num_mpt, hca_profile.num_mpt, int, 0444);
 116 MODULE_PARM_DESC(num_mpt,
 117                 "maximum number of memory protection table entries per HCA");
 118
 119 module_param_named(num_mtt, hca_profile.num_mtt, int, 0444);
 120 MODULE_PARM_DESC(num_mtt,
 121                  "maximum number of memory translation table segments per HCA");
 122
 123 module_param_named(num_udav, hca_profile.num_udav, int, 0444);
 124 MODULE_PARM_DESC(num_udav, "maximum number of UD address vectors per HCA");
 125
 126 module_param_named(fmr_reserved_mtts, hca_profile.fmr_reserved_mtts, int, 0444);
 127 MODULE_PARM_DESC(fmr_reserved_mtts,
 128                  "number of memory translation table segments reserved for FMR");
 129
 130 static char mthca_version[] __devinitdata =
 131         DRV_NAME ": Mellanox InfiniBand HCA driver v"
 132         DRV_VERSION " (" DRV_RELDATE ")\n";
 133
 134 static int mthca_tune_pci(struct mthca_dev *mdev)
 135 {
 136         if (!tune_pci)
 137                 return 0;
 138
 139         /* First try to max out Read Byte Count */
 140         if (pci_find_capability(mdev->pdev, PCI_CAP_ID_PCIX)) {
 141                 if (pcix_set_mmrbc(mdev->pdev, pcix_get_max_mmrbc(mdev->pdev))) {
 142                         mthca_err(mdev, "Couldn't set PCI-X max read count, "
 143                                 "aborting.\n");
 144                         return -ENODEV;
 145                 }
 146         } else if (!(mdev->mthca_flags & MTHCA_FLAG_PCIE))
 147                 mthca_info(mdev, "No PCI-X capability, not setting RBC.\n");
 148
 149         if (pci_find_capability(mdev->pdev, PCI_CAP_ID_EXP)) {
 150                 if (pcie_set_readrq(mdev->pdev, 4096)) {
 151                         mthca_err(mdev, "Couldn't write PCI Express read request, "
 152                                 "aborting.\n");
 153                         return -ENODEV;
 154                 }
 155         } else if (mdev->mthca_flags & MTHCA_FLAG_PCIE)
 156                 mthca_info(mdev, "No PCI Express capability, "
 157                            "not setting Max Read Request Size.\n");
 158
 159         return 0;
 160 }
 161
 162 static int mthca_dev_lim(struct mthca_dev *mdev, struct mthca_dev_lim *dev_lim)
 163 {
 164         int err;
 165         u8 status;
 166
 167         err = mthca_QUERY_DEV_LIM(mdev, dev_lim, &status);
 168         if (err) {
 169                 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
 170                 return err;
 171         }
 172         if (status) {
 173                 mthca_err(mdev, "QUERY_DEV_LIM returned status 0x%02x, "
 174                           "aborting.\n", status);
 175                 return -EINVAL;
 176         }
 177         if (dev_lim->min_page_sz > PAGE_SIZE) {
 178                 mthca_err(mdev, "HCA minimum page size of %d bigger than "
 179                           "kernel PAGE_SIZE of %ld, aborting.\n",
 180                           dev_lim->min_page_sz, PAGE_SIZE);
 181                 return -ENODEV;
 182         }
 183         if (dev_lim->num_ports > MTHCA_MAX_PORTS) {
 184                 mthca_err(mdev, "HCA has %d ports, but we only support %d, "
 185                           "aborting.\n",
 186                           dev_lim->num_ports, MTHCA_MAX_PORTS);
 187                 return -ENODEV;
 188         }
 189
 190         if (dev_lim->uar_size > pci_resource_len(mdev->pdev, 2)) {
 191                 mthca_err(mdev, "HCA reported UAR size of 0x%x bigger than "
 192                           "PCI resource 2 size of 0x%llx, aborting.\n",
 193                           dev_lim->uar_size,
 194                           (unsigned long long)pci_resource_len(mdev->pdev, 2));
 195                 return -ENODEV;
 196         }
 197
 198         mdev->limits.num_ports          = dev_lim->num_ports;
 199         mdev->limits.vl_cap             = dev_lim->max_vl;
 200         mdev->limits.mtu_cap            = dev_lim->max_mtu;
 201         mdev->limits.gid_table_len      = dev_lim->max_gids;
 202         mdev->limits.pkey_table_len     = dev_lim->max_pkeys;
 203         mdev->limits.local_ca_ack_delay = dev_lim->local_ca_ack_delay;
 204         /*
 205          * Need to allow for worst case send WQE overhead and check
 206          * whether max_desc_sz imposes a lower limit than max_sg; UD
 207          * send has the biggest overhead.
 208          */
 209         mdev->limits.max_sg             = min_t(int, dev_lim->max_sg,
 210                                               (dev_lim->max_desc_sz -
 211                                                sizeof (struct mthca_next_seg) -
 212                                                (mthca_is_memfree(mdev) ?
 213                                                 sizeof (struct mthca_arbel_ud_seg) :
 214                                                 sizeof (struct mthca_tavor_ud_seg))) /
 215                                                 sizeof (struct mthca_data_seg));
 216         mdev->limits.max_wqes           = dev_lim->max_qp_sz;
 217         mdev->limits.max_qp_init_rdma   = dev_lim->max_requester_per_qp;
 218         mdev->limits.reserved_qps       = dev_lim->reserved_qps;
 219         mdev->limits.max_srq_wqes       = dev_lim->max_srq_sz;
 220         mdev->limits.reserved_srqs      = dev_lim->reserved_srqs;
 221         mdev->limits.reserved_eecs      = dev_lim->reserved_eecs;
 222         mdev->limits.max_desc_sz        = dev_lim->max_desc_sz;
 223         mdev->limits.max_srq_sge        = mthca_max_srq_sge(mdev);
 224         /*
 225          * Subtract 1 from the limit because we need to allocate a
 226          * spare CQE so the HCA HW can tell the difference between an
 227          * empty CQ and a full CQ.
 228          */
 229         mdev->limits.max_cqes           = dev_lim->max_cq_sz - 1;
 230         mdev->limits.reserved_cqs       = dev_lim->reserved_cqs;
 231         mdev->limits.reserved_eqs       = dev_lim->reserved_eqs;
 232         mdev->limits.reserved_mtts      = dev_lim->reserved_mtts;
 233         mdev->limits.reserved_mrws      = dev_lim->reserved_mrws;
 234         mdev->limits.reserved_uars      = dev_lim->reserved_uars;
 235         mdev->limits.reserved_pds       = dev_lim->reserved_pds;
 236         mdev->limits.port_width_cap     = dev_lim->max_port_width;
 237         mdev->limits.page_size_cap      = ~(u32) (dev_lim->min_page_sz - 1);
 238         mdev->limits.flags              = dev_lim->flags;
 239         /*
 240          * For old FW that doesn't return static rate support, use a
 241          * value of 0x3 (only static rate values of 0 or 1 are handled),
 242          * except on Sinai, where even old FW can handle static rate
 243          * values of 2 and 3.
 244          */
 245         if (dev_lim->stat_rate_support)
 246                 mdev->limits.stat_rate_support = dev_lim->stat_rate_support;
 247         else if (mdev->mthca_flags & MTHCA_FLAG_SINAI_OPT)
 248                 mdev->limits.stat_rate_support = 0xf;
 249         else
 250                 mdev->limits.stat_rate_support = 0x3;
 251
 252         /* IB_DEVICE_RESIZE_MAX_WR not supported by driver.
 253            May be doable since hardware supports it for SRQ.
 254
 255            IB_DEVICE_N_NOTIFY_CQ is supported by hardware but not by driver.
 256
 257            IB_DEVICE_SRQ_RESIZE is supported by hardware but SRQ is not
 258            supported by driver. */
 259         mdev->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT |
 260                 IB_DEVICE_PORT_ACTIVE_EVENT |
 261                 IB_DEVICE_SYS_IMAGE_GUID |
 262                 IB_DEVICE_RC_RNR_NAK_GEN;
 263
 264         if (dev_lim->flags & DEV_LIM_FLAG_BAD_PKEY_CNTR)
 265                 mdev->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR;
 266
 267         if (dev_lim->flags & DEV_LIM_FLAG_BAD_QKEY_CNTR)
 268                 mdev->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR;
 269
 270         if (dev_lim->flags & DEV_LIM_FLAG_RAW_MULTI)
 271                 mdev->device_cap_flags |= IB_DEVICE_RAW_MULTI;
 272
 273         if (dev_lim->flags & DEV_LIM_FLAG_AUTO_PATH_MIG)
 274                 mdev->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG;
 275
 276         if (dev_lim->flags & DEV_LIM_FLAG_UD_AV_PORT_ENFORCE)
 277                 mdev->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE;
 278
 279         if (dev_lim->flags & DEV_LIM_FLAG_SRQ)
 280                 mdev->mthca_flags |= MTHCA_FLAG_SRQ;
 281
 282         if (mthca_is_memfree(mdev))
 283                 if (dev_lim->flags & DEV_LIM_FLAG_IPOIB_CSUM)
 284                         mdev->device_cap_flags |= IB_DEVICE_UD_IP_CSUM;
 285
 286         return 0;
 287 }
 288
 289 static int mthca_init_tavor(struct mthca_dev *mdev)
 290 {
 291         s64 size;
 292         u8 status;
 293         int err;
 294         struct mthca_dev_lim        dev_lim;
 295         struct mthca_profile        profile;
 296         struct mthca_init_hca_param init_hca;
 297
 298         err = mthca_SYS_EN(mdev, &status);
 299         if (err) {
 300                 mthca_err(mdev, "SYS_EN command failed, aborting.\n");
 301                 return err;
 302         }
 303         if (status) {
 304                 mthca_err(mdev, "SYS_EN returned status 0x%02x, "
 305                           "aborting.\n", status);
 306                 return -EINVAL;
 307         }
 308
 309         err = mthca_QUERY_FW(mdev, &status);
 310         if (err) {
 311                 mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
 312                 goto err_disable;
 313         }
 314         if (status) {
 315                 mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
 316                           "aborting.\n", status);
 317                 err = -EINVAL;
 318                 goto err_disable;
 319         }
 320         err = mthca_QUERY_DDR(mdev, &status);
 321         if (err) {
 322                 mthca_err(mdev, "QUERY_DDR command failed, aborting.\n");
 323                 goto err_disable;
 324         }
 325         if (status) {
 326                 mthca_err(mdev, "QUERY_DDR returned status 0x%02x, "
 327                           "aborting.\n", status);
 328                 err = -EINVAL;
 329                 goto err_disable;
 330         }
 331
 332         err = mthca_dev_lim(mdev, &dev_lim);
 333         if (err) {
 334                 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
 335                 goto err_disable;
 336         }
 337
 338         profile = hca_profile;
 339         profile.num_uar   = dev_lim.uar_size / PAGE_SIZE;
 340         profile.uarc_size = 0;
 341         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 342                 profile.num_srq = dev_lim.max_srqs;
 343
 344         size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
 345         if (size < 0) {
 346                 err = size;
 347                 goto err_disable;
 348         }
 349
 350         err = mthca_INIT_HCA(mdev, &init_hca, &status);
 351         if (err) {
 352                 mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
 353                 goto err_disable;
 354         }
 355         if (status) {
 356                 mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
 357                           "aborting.\n", status);
 358                 err = -EINVAL;
 359                 goto err_disable;
 360         }
 361
 362         return 0;
 363
 364 err_disable:
 365         mthca_SYS_DIS(mdev, &status);
 366
 367         return err;
 368 }
 369
 370 static int mthca_load_fw(struct mthca_dev *mdev)
 371 {
 372         u8 status;
 373         int err;
 374
 375         /* FIXME: use HCA-attached memory for FW if present */
 376
 377         mdev->fw.arbel.fw_icm =
 378                 mthca_alloc_icm(mdev, mdev->fw.arbel.fw_pages,
 379                                 GFP_HIGHUSER | __GFP_NOWARN, 0);
 380         if (!mdev->fw.arbel.fw_icm) {
 381                 mthca_err(mdev, "Couldn't allocate FW area, aborting.\n");
 382                 return -ENOMEM;
 383         }
 384
 385         err = mthca_MAP_FA(mdev, mdev->fw.arbel.fw_icm, &status);
 386         if (err) {
 387                 mthca_err(mdev, "MAP_FA command failed, aborting.\n");
 388                 goto err_free;
 389         }
 390         if (status) {
 391                 mthca_err(mdev, "MAP_FA returned status 0x%02x, aborting.\n", status);
 392                 err = -EINVAL;
 393                 goto err_free;
 394         }
 395         err = mthca_RUN_FW(mdev, &status);
 396         if (err) {
 397                 mthca_err(mdev, "RUN_FW command failed, aborting.\n");
 398                 goto err_unmap_fa;
 399         }
 400         if (status) {
 401                 mthca_err(mdev, "RUN_FW returned status 0x%02x, aborting.\n", status);
 402                 err = -EINVAL;
 403                 goto err_unmap_fa;
 404         }
 405
 406         return 0;
 407
 408 err_unmap_fa:
 409         mthca_UNMAP_FA(mdev, &status);
 410
 411 err_free:
 412         mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
 413         return err;
 414 }
 415
 416 static int mthca_init_icm(struct mthca_dev *mdev,
 417                           struct mthca_dev_lim *dev_lim,
 418                           struct mthca_init_hca_param *init_hca,
 419                           u64 icm_size)
 420 {
 421         u64 aux_pages;
 422         u8 status;
 423         int err;
 424
 425         err = mthca_SET_ICM_SIZE(mdev, icm_size, &aux_pages, &status);
 426         if (err) {
 427                 mthca_err(mdev, "SET_ICM_SIZE command failed, aborting.\n");
 428                 return err;
 429         }
 430         if (status) {
 431                 mthca_err(mdev, "SET_ICM_SIZE returned status 0x%02x, "
 432                           "aborting.\n", status);
 433                 return -EINVAL;
 434         }
 435
 436         mthca_dbg(mdev, "%lld KB of HCA context requires %lld KB aux memory.\n",
 437                   (unsigned long long) icm_size >> 10,
 438                   (unsigned long long) aux_pages << 2);
 439
 440         mdev->fw.arbel.aux_icm = mthca_alloc_icm(mdev, aux_pages,
 441                                                  GFP_HIGHUSER | __GFP_NOWARN, 0);
 442         if (!mdev->fw.arbel.aux_icm) {
 443                 mthca_err(mdev, "Couldn't allocate aux memory, aborting.\n");
 444                 return -ENOMEM;
 445         }
 446
 447         err = mthca_MAP_ICM_AUX(mdev, mdev->fw.arbel.aux_icm, &status);
 448         if (err) {
 449                 mthca_err(mdev, "MAP_ICM_AUX command failed, aborting.\n");
 450                 goto err_free_aux;
 451         }
 452         if (status) {
 453                 mthca_err(mdev, "MAP_ICM_AUX returned status 0x%02x, aborting.\n", status);
 454                 err = -EINVAL;
 455                 goto err_free_aux;
 456         }
 457
 458         err = mthca_map_eq_icm(mdev, init_hca->eqc_base);
 459         if (err) {
 460                 mthca_err(mdev, "Failed to map EQ context memory, aborting.\n");
 461                 goto err_unmap_aux;
 462         }
 463
 464         /* CPU writes to non-reserved MTTs, while HCA might DMA to reserved mtts */
 465         mdev->limits.reserved_mtts = ALIGN(mdev->limits.reserved_mtts * MTHCA_MTT_SEG_SIZE,
 466                                            dma_get_cache_alignment()) / MTHCA_MTT_SEG_SIZE;
 467
 468         mdev->mr_table.mtt_table = mthca_alloc_icm_table(mdev, init_hca->mtt_base,
 469                                                          MTHCA_MTT_SEG_SIZE,
 470                                                          mdev->limits.num_mtt_segs,
 471                                                          mdev->limits.reserved_mtts,
 472                                                          1, 0);
 473         if (!mdev->mr_table.mtt_table) {
 474                 mthca_err(mdev, "Failed to map MTT context memory, aborting.\n");
 475                 err = -ENOMEM;
 476                 goto err_unmap_eq;
 477         }
 478
 479         mdev->mr_table.mpt_table = mthca_alloc_icm_table(mdev, init_hca->mpt_base,
 480                                                          dev_lim->mpt_entry_sz,
 481                                                          mdev->limits.num_mpts,
 482                                                          mdev->limits.reserved_mrws,
 483                                                          1, 1);
 484         if (!mdev->mr_table.mpt_table) {
 485                 mthca_err(mdev, "Failed to map MPT context memory, aborting.\n");
 486                 err = -ENOMEM;
 487                 goto err_unmap_mtt;
 488         }
 489
 490         mdev->qp_table.qp_table = mthca_alloc_icm_table(mdev, init_hca->qpc_base,
 491                                                         dev_lim->qpc_entry_sz,
 492                                                         mdev->limits.num_qps,
 493                                                         mdev->limits.reserved_qps,
 494                                                         0, 0);
 495         if (!mdev->qp_table.qp_table) {
 496                 mthca_err(mdev, "Failed to map QP context memory, aborting.\n");
 497                 err = -ENOMEM;
 498                 goto err_unmap_mpt;
 499         }
 500
 501         mdev->qp_table.eqp_table = mthca_alloc_icm_table(mdev, init_hca->eqpc_base,
 502                                                          dev_lim->eqpc_entry_sz,
 503                                                          mdev->limits.num_qps,
 504                                                          mdev->limits.reserved_qps,
 505                                                          0, 0);
 506         if (!mdev->qp_table.eqp_table) {
 507                 mthca_err(mdev, "Failed to map EQP context memory, aborting.\n");
 508                 err = -ENOMEM;
 509                 goto err_unmap_qp;
 510         }
 511
 512         mdev->qp_table.rdb_table = mthca_alloc_icm_table(mdev, init_hca->rdb_base,
 513                                                          MTHCA_RDB_ENTRY_SIZE,
 514                                                          mdev->limits.num_qps <<
 515                                                          mdev->qp_table.rdb_shift, 0,
 516                                                          0, 0);
 517         if (!mdev->qp_table.rdb_table) {
 518                 mthca_err(mdev, "Failed to map RDB context memory, aborting\n");
 519                 err = -ENOMEM;
 520                 goto err_unmap_eqp;
 521         }
 522
 523        mdev->cq_table.table = mthca_alloc_icm_table(mdev, init_hca->cqc_base,
 524                                                     dev_lim->cqc_entry_sz,
 525                                                     mdev->limits.num_cqs,
 526                                                     mdev->limits.reserved_cqs,
 527                                                     0, 0);
 528         if (!mdev->cq_table.table) {
 529                 mthca_err(mdev, "Failed to map CQ context memory, aborting.\n");
 530                 err = -ENOMEM;
 531                 goto err_unmap_rdb;
 532         }
 533
 534         if (mdev->mthca_flags & MTHCA_FLAG_SRQ) {
 535                 mdev->srq_table.table =
 536                         mthca_alloc_icm_table(mdev, init_hca->srqc_base,
 537                                               dev_lim->srq_entry_sz,
 538                                               mdev->limits.num_srqs,
 539                                               mdev->limits.reserved_srqs,
 540                                               0, 0);
 541                 if (!mdev->srq_table.table) {
 542                         mthca_err(mdev, "Failed to map SRQ context memory, "
 543                                   "aborting.\n");
 544                         err = -ENOMEM;
 545                         goto err_unmap_cq;
 546                 }
 547         }
 548
 549         /*
 550          * It's not strictly required, but for simplicity just map the
 551          * whole multicast group table now.  The table isn't very big
 552          * and it's a lot easier than trying to track ref counts.
 553          */
 554         mdev->mcg_table.table = mthca_alloc_icm_table(mdev, init_hca->mc_base,
 555                                                       MTHCA_MGM_ENTRY_SIZE,
 556                                                       mdev->limits.num_mgms +
 557                                                       mdev->limits.num_amgms,
 558                                                       mdev->limits.num_mgms +
 559                                                       mdev->limits.num_amgms,
 560                                                       0, 0);
 561         if (!mdev->mcg_table.table) {
 562                 mthca_err(mdev, "Failed to map MCG context memory, aborting.\n");
 563                 err = -ENOMEM;
 564                 goto err_unmap_srq;
 565         }
 566
 567         return 0;
 568
 569 err_unmap_srq:
 570         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 571                 mthca_free_icm_table(mdev, mdev->srq_table.table);
 572
 573 err_unmap_cq:
 574         mthca_free_icm_table(mdev, mdev->cq_table.table);
 575
 576 err_unmap_rdb:
 577         mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
 578
 579 err_unmap_eqp:
 580         mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
 581
 582 err_unmap_qp:
 583         mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
 584
 585 err_unmap_mpt:
 586         mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
 587
 588 err_unmap_mtt:
 589         mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
 590
 591 err_unmap_eq:
 592         mthca_unmap_eq_icm(mdev);
 593
 594 err_unmap_aux:
 595         mthca_UNMAP_ICM_AUX(mdev, &status);
 596
 597 err_free_aux:
 598         mthca_free_icm(mdev, mdev->fw.arbel.aux_icm, 0);
 599
 600         return err;
 601 }
 602
 603 static void mthca_free_icms(struct mthca_dev *mdev)
 604 {
 605         u8 status;
 606
 607         mthca_free_icm_table(mdev, mdev->mcg_table.table);
 608         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 609                 mthca_free_icm_table(mdev, mdev->srq_table.table);
 610         mthca_free_icm_table(mdev, mdev->cq_table.table);
 611         mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
 612         mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
 613         mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
 614         mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
 615         mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
 616         mthca_unmap_eq_icm(mdev);
 617
 618         mthca_UNMAP_ICM_AUX(mdev, &status);
 619         mthca_free_icm(mdev, mdev->fw.arbel.aux_icm, 0);
 620 }
 621
 622 static int mthca_init_arbel(struct mthca_dev *mdev)
 623 {
 624         struct mthca_dev_lim        dev_lim;
 625         struct mthca_profile        profile;
 626         struct mthca_init_hca_param init_hca;
 627         s64 icm_size;
 628         u8 status;
 629         int err;
 630
 631         err = mthca_QUERY_FW(mdev, &status);
 632         if (err) {
 633                 mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
 634                 return err;
 635         }
 636         if (status) {
 637                 mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
 638                           "aborting.\n", status);
 639                 return -EINVAL;
 640         }
 641
 642         err = mthca_ENABLE_LAM(mdev, &status);
 643         if (err) {
 644                 mthca_err(mdev, "ENABLE_LAM command failed, aborting.\n");
 645                 return err;
 646         }
 647         if (status == MTHCA_CMD_STAT_LAM_NOT_PRE) {
 648                 mthca_dbg(mdev, "No HCA-attached memory (running in MemFree mode)\n");
 649                 mdev->mthca_flags |= MTHCA_FLAG_NO_LAM;
 650         } else if (status) {
 651                 mthca_err(mdev, "ENABLE_LAM returned status 0x%02x, "
 652                           "aborting.\n", status);
 653                 return -EINVAL;
 654         }
 655
 656         err = mthca_load_fw(mdev);
 657         if (err) {
 658                 mthca_err(mdev, "Failed to start FW, aborting.\n");
 659                 goto err_disable;
 660         }
 661
 662         err = mthca_dev_lim(mdev, &dev_lim);
 663         if (err) {
 664                 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
 665                 goto err_stop_fw;
 666         }
 667
 668         profile = hca_profile;
 669         profile.num_uar  = dev_lim.uar_size / PAGE_SIZE;
 670         profile.num_udav = 0;
 671         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 672                 profile.num_srq = dev_lim.max_srqs;
 673
 674         icm_size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
 675         if (icm_size < 0) {
 676                 err = icm_size;
 677                 goto err_stop_fw;
 678         }
 679
 680         err = mthca_init_icm(mdev, &dev_lim, &init_hca, icm_size);
 681         if (err)
 682                 goto err_stop_fw;
 683
 684         err = mthca_INIT_HCA(mdev, &init_hca, &status);
 685         if (err) {
 686                 mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
 687                 goto err_free_icm;
 688         }
 689         if (status) {
 690                 mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
 691                           "aborting.\n", status);
 692                 err = -EINVAL;
 693                 goto err_free_icm;
 694         }
 695
 696         return 0;
 697
 698 err_free_icm:
 699         mthca_free_icms(mdev);
 700
 701 err_stop_fw:
 702         mthca_UNMAP_FA(mdev, &status);
 703         mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
 704
 705 err_disable:
 706         if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
 707                 mthca_DISABLE_LAM(mdev, &status);
 708
 709         return err;
 710 }
 711
 712 static void mthca_close_hca(struct mthca_dev *mdev)
 713 {
 714         u8 status;
 715
 716         mthca_CLOSE_HCA(mdev, 0, &status);
 717
 718         if (mthca_is_memfree(mdev)) {
 719                 mthca_free_icms(mdev);
 720
 721                 mthca_UNMAP_FA(mdev, &status);
 722                 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
 723
 724                 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
 725                         mthca_DISABLE_LAM(mdev, &status);
 726         } else
 727                 mthca_SYS_DIS(mdev, &status);
 728 }
 729
 730 static int mthca_init_hca(struct mthca_dev *mdev)
 731 {
 732         u8 status;
 733         int err;
 734         struct mthca_adapter adapter;
 735
 736         if (mthca_is_memfree(mdev))
 737                 err = mthca_init_arbel(mdev);
 738         else
 739                 err = mthca_init_tavor(mdev);
 740
 741         if (err)
 742                 return err;
 743
 744         err = mthca_QUERY_ADAPTER(mdev, &adapter, &status);
 745         if (err) {
 746                 mthca_err(mdev, "QUERY_ADAPTER command failed, aborting.\n");
 747                 goto err_close;
 748         }
 749         if (status) {
 750                 mthca_err(mdev, "QUERY_ADAPTER returned status 0x%02x, "
 751                           "aborting.\n", status);
 752                 err = -EINVAL;
 753                 goto err_close;
 754         }
 755
 756         mdev->eq_table.inta_pin = adapter.inta_pin;
 757         if (!mthca_is_memfree(mdev))
 758                 mdev->rev_id = adapter.revision_id;
 759         memcpy(mdev->board_id, adapter.board_id, sizeof mdev->board_id);
 760
 761         return 0;
 762
 763 err_close:
 764         mthca_close_hca(mdev);
 765         return err;
 766 }
 767
 768 static int mthca_setup_hca(struct mthca_dev *dev)
 769 {
 770         int err;
 771         u8 status;
 772
 773         MTHCA_INIT_DOORBELL_LOCK(&dev->doorbell_lock);
 774
 775         err = mthca_init_uar_table(dev);
 776         if (err) {
 777                 mthca_err(dev, "Failed to initialize "
 778                           "user access region table, aborting.\n");
 779                 return err;
 780         }
 781
 782         err = mthca_uar_alloc(dev, &dev->driver_uar);
 783         if (err) {
 784                 mthca_err(dev, "Failed to allocate driver access region, "
 785                           "aborting.\n");
 786                 goto err_uar_table_free;
 787         }
 788
 789         dev->kar = ioremap(dev->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
 790         if (!dev->kar) {
 791                 mthca_err(dev, "Couldn't map kernel access region, "
 792                           "aborting.\n");
 793                 err = -ENOMEM;
 794                 goto err_uar_free;
 795         }
 796
 797         err = mthca_init_pd_table(dev);
 798         if (err) {
 799                 mthca_err(dev, "Failed to initialize "
 800                           "protection domain table, aborting.\n");
 801                 goto err_kar_unmap;
 802         }
 803
 804         err = mthca_init_mr_table(dev);
 805         if (err) {
 806                 mthca_err(dev, "Failed to initialize "
 807                           "memory region table, aborting.\n");
 808                 goto err_pd_table_free;
 809         }
 810
 811         err = mthca_pd_alloc(dev, 1, &dev->driver_pd);
 812         if (err) {
 813                 mthca_err(dev, "Failed to create driver PD, "
 814                           "aborting.\n");
 815                 goto err_mr_table_free;
 816         }
 817
 818         err = mthca_init_eq_table(dev);
 819         if (err) {
 820                 mthca_err(dev, "Failed to initialize "
 821                           "event queue table, aborting.\n");
 822                 goto err_pd_free;
 823         }
 824
 825         err = mthca_cmd_use_events(dev);
 826         if (err) {
 827                 mthca_err(dev, "Failed to switch to event-driven "
 828                           "firmware commands, aborting.\n");
 829                 goto err_eq_table_free;
 830         }
 831
 832         err = mthca_NOP(dev, &status);
 833         if (err || status) {
 834                 if (dev->mthca_flags & MTHCA_FLAG_MSI_X) {
 835                         mthca_warn(dev, "NOP command failed to generate interrupt "
 836                                    "(IRQ %d).\n",
 837                                    dev->eq_table.eq[MTHCA_EQ_CMD].msi_x_vector);
 838                         mthca_warn(dev, "Trying again with MSI-X disabled.\n");
 839                 } else {
 840                         mthca_err(dev, "NOP command failed to generate interrupt "
 841                                   "(IRQ %d), aborting.\n",
 842                                   dev->pdev->irq);
 843                         mthca_err(dev, "BIOS or ACPI interrupt routing problem?\n");
 844                 }
 845
 846                 goto err_cmd_poll;
 847         }
 848
 849         mthca_dbg(dev, "NOP command IRQ test passed\n");
 850
 851         err = mthca_init_cq_table(dev);
 852         if (err) {
 853                 mthca_err(dev, "Failed to initialize "
 854                           "completion queue table, aborting.\n");
 855                 goto err_cmd_poll;
 856         }
 857
 858         err = mthca_init_srq_table(dev);
 859         if (err) {
 860                 mthca_err(dev, "Failed to initialize "
 861                           "shared receive queue table, aborting.\n");
 862                 goto err_cq_table_free;
 863         }
 864
 865         err = mthca_init_qp_table(dev);
 866         if (err) {
 867                 mthca_err(dev, "Failed to initialize "
 868                           "queue pair table, aborting.\n");
 869                 goto err_srq_table_free;
 870         }
 871
 872         err = mthca_init_av_table(dev);
 873         if (err) {
 874                 mthca_err(dev, "Failed to initialize "
 875                           "address vector table, aborting.\n");
 876                 goto err_qp_table_free;
 877         }
 878
 879         err = mthca_init_mcg_table(dev);
 880         if (err) {
 881                 mthca_err(dev, "Failed to initialize "
 882                           "multicast group table, aborting.\n");
 883                 goto err_av_table_free;
 884         }
 885
 886         return 0;
 887
 888 err_av_table_free:
 889         mthca_cleanup_av_table(dev);
 890
 891 err_qp_table_free:
 892         mthca_cleanup_qp_table(dev);
 893
 894 err_srq_table_free:
 895         mthca_cleanup_srq_table(dev);
 896
 897 err_cq_table_free:
 898         mthca_cleanup_cq_table(dev);
 899
 900 err_cmd_poll:
 901         mthca_cmd_use_polling(dev);
 902
 903 err_eq_table_free:
 904         mthca_cleanup_eq_table(dev);
 905
 906 err_pd_free:
 907         mthca_pd_free(dev, &dev->driver_pd);
 908
 909 err_mr_table_free:
 910         mthca_cleanup_mr_table(dev);
 911
 912 err_pd_table_free:
 913         mthca_cleanup_pd_table(dev);
 914
 915 err_kar_unmap:
 916         iounmap(dev->kar);
 917
 918 err_uar_free:
 919         mthca_uar_free(dev, &dev->driver_uar);
 920
 921 err_uar_table_free:
 922         mthca_cleanup_uar_table(dev);
 923         return err;
 924 }
 925
 926 static int mthca_request_regions(struct pci_dev *pdev, int ddr_hidden)
 927 {
 928         int err;
 929
 930         /*
 931          * We can't just use pci_request_regions() because the MSI-X
 932          * table is right in the middle of the first BAR.  If we did
 933          * pci_request_region and grab all of the first BAR, then
 934          * setting up MSI-X would fail, since the PCI core wants to do
 935          * request_mem_region on the MSI-X vector table.
 936          *
 937          * So just request what we need right now, and request any
 938          * other regions we need when setting up EQs.
 939          */
 940         if (!request_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
 941                                 MTHCA_HCR_SIZE, DRV_NAME))
 942                 return -EBUSY;
 943
 944         err = pci_request_region(pdev, 2, DRV_NAME);
 945         if (err)
 946                 goto err_bar2_failed;
 947
 948         if (!ddr_hidden) {
 949                 err = pci_request_region(pdev, 4, DRV_NAME);
 950                 if (err)
 951                         goto err_bar4_failed;
 952         }
 953
 954         return 0;
 955
 956 err_bar4_failed:
 957         pci_release_region(pdev, 2);
 958
 959 err_bar2_failed:
 960         release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
 961                            MTHCA_HCR_SIZE);
 962
 963         return err;
 964 }
 965
 966 static void mthca_release_regions(struct pci_dev *pdev,
 967                                   int ddr_hidden)
 968 {
 969         if (!ddr_hidden)
 970                 pci_release_region(pdev, 4);
 971
 972         pci_release_region(pdev, 2);
 973
 974         release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
 975                            MTHCA_HCR_SIZE);
 976 }
 977
 978 static int mthca_enable_msi_x(struct mthca_dev *mdev)
 979 {
 980         struct msix_entry entries[3];
 981         int err;
 982
 983         entries[0].entry = 0;
 984         entries[1].entry = 1;
 985         entries[2].entry = 2;
 986
 987         err = pci_enable_msix(mdev->pdev, entries, ARRAY_SIZE(entries));
 988         if (err) {
 989                 if (err > 0)
 990                         mthca_info(mdev, "Only %d MSI-X vectors available, "
 991                                    "not using MSI-X\n", err);
 992                 return err;
 993         }
 994
 995         mdev->eq_table.eq[MTHCA_EQ_COMP ].msi_x_vector = entries[0].vector;
 996         mdev->eq_table.eq[MTHCA_EQ_ASYNC].msi_x_vector = entries[1].vector;
 997         mdev->eq_table.eq[MTHCA_EQ_CMD  ].msi_x_vector = entries[2].vector;
 998
 999         return 0;
1000 }
1001
1002 /* Types of supported HCA */
1003 enum {
1004         TAVOR,                  /* MT23108                        */
1005         ARBEL_COMPAT,           /* MT25208 in Tavor compat mode   */
1006         ARBEL_NATIVE,           /* MT25208 with extended features */
1007         SINAI                   /* MT25204 */
1008 };
1009
1010 #define MTHCA_FW_VER(major, minor, subminor) \
1011         (((u64) (major) << 32) | ((u64) (minor) << 16) | (u64) (subminor))
1012
1013 static struct {
1014         u64 latest_fw;
1015         u32 flags;
1016 } mthca_hca_table[] = {
1017         [TAVOR]        = { .latest_fw = MTHCA_FW_VER(3, 5, 0),
1018                            .flags     = 0 },
1019         [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 8, 200),
1020                            .flags     = MTHCA_FLAG_PCIE },
1021         [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 3, 0),
1022                            .flags     = MTHCA_FLAG_MEMFREE |
1023                                         MTHCA_FLAG_PCIE },
1024         [SINAI]        = { .latest_fw = MTHCA_FW_VER(1, 2, 0),
1025                            .flags     = MTHCA_FLAG_MEMFREE |
1026                                         MTHCA_FLAG_PCIE    |
1027                                         MTHCA_FLAG_SINAI_OPT }
1028 };
1029
1030 static int __mthca_init_one(struct pci_dev *pdev, int hca_type)
1031 {
1032         int ddr_hidden = 0;
1033         int err;
1034         struct mthca_dev *mdev;
1035
1036         printk(KERN_INFO PFX "Initializing %s\n",
1037                pci_name(pdev));
1038
1039         err = pci_enable_device(pdev);
1040         if (err) {
1041                 dev_err(&pdev->dev, "Cannot enable PCI device, "
1042                         "aborting.\n");
1043                 return err;
1044         }
1045
1046         /*
1047          * Check for BARs.  We expect 0: 1MB, 2: 8MB, 4: DDR (may not
1048          * be present)
1049          */
1050         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) ||
1051             pci_resource_len(pdev, 0) != 1 << 20) {
1052                 dev_err(&pdev->dev, "Missing DCS, aborting.\n");
1053                 err = -ENODEV;
1054                 goto err_disable_pdev;
1055         }
1056         if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
1057                 dev_err(&pdev->dev, "Missing UAR, aborting.\n");
1058                 err = -ENODEV;
1059                 goto err_disable_pdev;
1060         }
1061         if (!(pci_resource_flags(pdev, 4) & IORESOURCE_MEM))
1062                 ddr_hidden = 1;
1063
1064         err = mthca_request_regions(pdev, ddr_hidden);
1065         if (err) {
1066                 dev_err(&pdev->dev, "Cannot obtain PCI resources, "
1067                         "aborting.\n");
1068                 goto err_disable_pdev;
1069         }
1070
1071         pci_set_master(pdev);
1072
1073         err = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
1074         if (err) {
1075                 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n");
1076                 err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
1077                 if (err) {
1078                         dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n");
1079                         goto err_free_res;
1080                 }
1081         }
1082         err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
1083         if (err) {
1084                 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit "
1085                          "consistent PCI DMA mask.\n");
1086                 err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
1087                 if (err) {
1088                         dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
1089                                 "aborting.\n");
1090                         goto err_free_res;
1091                 }
1092         }
1093
1094         mdev = (struct mthca_dev *) ib_alloc_device(sizeof *mdev);
1095         if (!mdev) {
1096                 dev_err(&pdev->dev, "Device struct alloc failed, "
1097                         "aborting.\n");
1098                 err = -ENOMEM;
1099                 goto err_free_res;
1100         }
1101
1102         mdev->pdev = pdev;
1103
1104         mdev->mthca_flags = mthca_hca_table[hca_type].flags;
1105         if (ddr_hidden)
1106                 mdev->mthca_flags |= MTHCA_FLAG_DDR_HIDDEN;
1107
1108         /*
1109          * Now reset the HCA before we touch the PCI capabilities or
1110          * attempt a firmware command, since a boot ROM may have left
1111          * the HCA in an undefined state.
1112          */
1113         err = mthca_reset(mdev);
1114         if (err) {
1115                 mthca_err(mdev, "Failed to reset HCA, aborting.\n");
1116                 goto err_free_dev;
1117         }
1118
1119         if (mthca_cmd_init(mdev)) {
1120                 mthca_err(mdev, "Failed to init command interface, aborting.\n");
1121                 goto err_free_dev;
1122         }
1123
1124         err = mthca_tune_pci(mdev);
1125         if (err)
1126                 goto err_cmd;
1127
1128         err = mthca_init_hca(mdev);
1129         if (err)
1130                 goto err_cmd;
1131
1132         if (mdev->fw_ver < mthca_hca_table[hca_type].latest_fw) {
1133                 mthca_warn(mdev, "HCA FW version %d.%d.%03d is old (%d.%d.%03d is current).\n",
1134                            (int) (mdev->fw_ver >> 32), (int) (mdev->fw_ver >> 16) & 0xffff,
1135                            (int) (mdev->fw_ver & 0xffff),
1136                            (int) (mthca_hca_table[hca_type].latest_fw >> 32),
1137                            (int) (mthca_hca_table[hca_type].latest_fw >> 16) & 0xffff,
1138                            (int) (mthca_hca_table[hca_type].latest_fw & 0xffff));
1139                 mthca_warn(mdev, "If you have problems, try updating your HCA FW.\n");
1140         }
1141
1142         if (msi_x && !mthca_enable_msi_x(mdev))
1143                 mdev->mthca_flags |= MTHCA_FLAG_MSI_X;
1144
1145         err = mthca_setup_hca(mdev);
1146         if (err == -EBUSY && (mdev->mthca_flags & MTHCA_FLAG_MSI_X)) {
1147                 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1148                         pci_disable_msix(pdev);
1149                 mdev->mthca_flags &= ~MTHCA_FLAG_MSI_X;
1150
1151                 err = mthca_setup_hca(mdev);
1152         }
1153
1154         if (err)
1155                 goto err_close;
1156
1157         err = mthca_register_device(mdev);
1158         if (err)
1159                 goto err_cleanup;
1160
1161         err = mthca_create_agents(mdev);
1162         if (err)
1163                 goto err_unregister;
1164
1165         pci_set_drvdata(pdev, mdev);
1166         mdev->hca_type = hca_type;
1167
1168         return 0;
1169
1170 err_unregister:
1171         mthca_unregister_device(mdev);
1172
1173 err_cleanup:
1174         mthca_cleanup_mcg_table(mdev);
1175         mthca_cleanup_av_table(mdev);
1176         mthca_cleanup_qp_table(mdev);
1177         mthca_cleanup_srq_table(mdev);
1178         mthca_cleanup_cq_table(mdev);
1179         mthca_cmd_use_polling(mdev);
1180         mthca_cleanup_eq_table(mdev);
1181
1182         mthca_pd_free(mdev, &mdev->driver_pd);
1183
1184         mthca_cleanup_mr_table(mdev);
1185         mthca_cleanup_pd_table(mdev);
1186         mthca_cleanup_uar_table(mdev);
1187
1188 err_close:
1189         if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1190                 pci_disable_msix(pdev);
1191
1192         mthca_close_hca(mdev);
1193
1194 err_cmd:
1195         mthca_cmd_cleanup(mdev);
1196
1197 err_free_dev:
1198         ib_dealloc_device(&mdev->ib_dev);
1199
1200 err_free_res:
1201         mthca_release_regions(pdev, ddr_hidden);
1202
1203 err_disable_pdev:
1204         pci_disable_device(pdev);
1205         pci_set_drvdata(pdev, NULL);
1206         return err;
1207 }
1208
1209 static void __mthca_remove_one(struct pci_dev *pdev)
1210 {
1211         struct mthca_dev *mdev = pci_get_drvdata(pdev);
1212         u8 status;
1213         int p;
1214
1215         if (mdev) {
1216                 mthca_free_agents(mdev);
1217                 mthca_unregister_device(mdev);
1218
1219                 for (p = 1; p <= mdev->limits.num_ports; ++p)
1220                         mthca_CLOSE_IB(mdev, p, &status);
1221
1222                 mthca_cleanup_mcg_table(mdev);
1223                 mthca_cleanup_av_table(mdev);
1224                 mthca_cleanup_qp_table(mdev);
1225                 mthca_cleanup_srq_table(mdev);
1226                 mthca_cleanup_cq_table(mdev);
1227                 mthca_cmd_use_polling(mdev);
1228                 mthca_cleanup_eq_table(mdev);
1229
1230                 mthca_pd_free(mdev, &mdev->driver_pd);
1231
1232                 mthca_cleanup_mr_table(mdev);
1233                 mthca_cleanup_pd_table(mdev);
1234
1235                 iounmap(mdev->kar);
1236                 mthca_uar_free(mdev, &mdev->driver_uar);
1237                 mthca_cleanup_uar_table(mdev);
1238                 mthca_close_hca(mdev);
1239                 mthca_cmd_cleanup(mdev);
1240
1241                 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1242                         pci_disable_msix(pdev);
1243
1244                 ib_dealloc_device(&mdev->ib_dev);
1245                 mthca_release_regions(pdev, mdev->mthca_flags &
1246                                       MTHCA_FLAG_DDR_HIDDEN);
1247                 pci_disable_device(pdev);
1248                 pci_set_drvdata(pdev, NULL);
1249         }
1250 }
1251
1252 int __mthca_restart_one(struct pci_dev *pdev)
1253 {
1254         struct mthca_dev *mdev;
1255         int hca_type;
1256
1257         mdev = pci_get_drvdata(pdev);
1258         if (!mdev)
1259                 return -ENODEV;
1260         hca_type = mdev->hca_type;
1261         __mthca_remove_one(pdev);
1262         return __mthca_init_one(pdev, hca_type);
1263 }
1264
1265 static int __devinit mthca_init_one(struct pci_dev *pdev,
1266                                     const struct pci_device_id *id)
1267 {
1268         static int mthca_version_printed = 0;
1269         int ret;
1270
1271         mutex_lock(&mthca_device_mutex);
1272
1273         if (!mthca_version_printed) {
1274                 printk(KERN_INFO "%s", mthca_version);
1275                 ++mthca_version_printed;
1276         }
1277
1278         if (id->driver_data >= ARRAY_SIZE(mthca_hca_table)) {
1279                 printk(KERN_ERR PFX "%s has invalid driver data %lx\n",
1280                        pci_name(pdev), id->driver_data);
1281                 mutex_unlock(&mthca_device_mutex);
1282                 return -ENODEV;
1283         }
1284
1285         ret = __mthca_init_one(pdev, id->driver_data);
1286
1287         mutex_unlock(&mthca_device_mutex);
1288
1289         return ret;
1290 }
1291
1292 static void __devexit mthca_remove_one(struct pci_dev *pdev)
1293 {
1294         mutex_lock(&mthca_device_mutex);
1295         __mthca_remove_one(pdev);
1296         mutex_unlock(&mthca_device_mutex);
1297 }
1298
1299 static struct pci_device_id mthca_pci_table[] = {
1300         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR),
1301           .driver_data = TAVOR },
1302         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_TAVOR),
1303           .driver_data = TAVOR },
1304         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1305           .driver_data = ARBEL_COMPAT },
1306         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1307           .driver_data = ARBEL_COMPAT },
1308         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL),
1309           .driver_data = ARBEL_NATIVE },
1310         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL),
1311           .driver_data = ARBEL_NATIVE },
1312         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI),
1313           .driver_data = SINAI },
1314         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI),
1315           .driver_data = SINAI },
1316         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1317           .driver_data = SINAI },
1318         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1319           .driver_data = SINAI },
1320         { 0, }
1321 };
1322
1323 MODULE_DEVICE_TABLE(pci, mthca_pci_table);
1324
1325 static struct pci_driver mthca_driver = {
1326         .name           = DRV_NAME,
1327         .id_table       = mthca_pci_table,
1328         .probe          = mthca_init_one,
1329         .remove         = __devexit_p(mthca_remove_one)
1330 };
1331
1332 static void __init __mthca_check_profile_val(const char *name, int *pval,
1333                                              int pval_default)
1334 {
1335         /* value must be positive and power of 2 */
1336         int old_pval = *pval;
1337
1338         if (old_pval <= 0)
1339                 *pval = pval_default;
1340         else
1341                 *pval = roundup_pow_of_two(old_pval);
1342
1343         if (old_pval != *pval) {
1344                 printk(KERN_WARNING PFX "Invalid value %d for %s in module parameter.\n",
1345                        old_pval, name);
1346                 printk(KERN_WARNING PFX "Corrected %s to %d.\n", name, *pval);
1347         }
1348 }
1349
1350 #define mthca_check_profile_val(name, default)                          \
1351         __mthca_check_profile_val(#name, &hca_profile.name, default)
1352
1353 static void __init mthca_validate_profile(void)
1354 {
1355         mthca_check_profile_val(num_qp,            MTHCA_DEFAULT_NUM_QP);
1356         mthca_check_profile_val(rdb_per_qp,        MTHCA_DEFAULT_RDB_PER_QP);
1357         mthca_check_profile_val(num_cq,            MTHCA_DEFAULT_NUM_CQ);
1358         mthca_check_profile_val(num_mcg,           MTHCA_DEFAULT_NUM_MCG);
1359         mthca_check_profile_val(num_mpt,           MTHCA_DEFAULT_NUM_MPT);
1360         mthca_check_profile_val(num_mtt,           MTHCA_DEFAULT_NUM_MTT);
1361         mthca_check_profile_val(num_udav,          MTHCA_DEFAULT_NUM_UDAV);
1362         mthca_check_profile_val(fmr_reserved_mtts, MTHCA_DEFAULT_NUM_RESERVED_MTTS);
1363
1364         if (hca_profile.fmr_reserved_mtts >= hca_profile.num_mtt) {
1365                 printk(KERN_WARNING PFX "Invalid fmr_reserved_mtts module parameter %d.\n",
1366                        hca_profile.fmr_reserved_mtts);
1367                 printk(KERN_WARNING PFX "(Must be smaller than num_mtt %d)\n",
1368                        hca_profile.num_mtt);
1369                 hca_profile.fmr_reserved_mtts = hca_profile.num_mtt / 2;
1370                 printk(KERN_WARNING PFX "Corrected fmr_reserved_mtts to %d.\n",
1371                        hca_profile.fmr_reserved_mtts);
1372         }
1373 }
1374
1375 static int __init mthca_init(void)
1376 {
1377         int ret;
1378
1379         mthca_validate_profile();
1380
1381         ret = mthca_catas_init();
1382         if (ret)
1383                 return ret;
1384
1385         ret = pci_register_driver(&mthca_driver);
1386         if (ret < 0) {
1387                 mthca_catas_cleanup();
1388                 return ret;
1389         }
1390
1391         return 0;
1392 }
1393
1394 static void __exit mthca_cleanup(void)
1395 {
1396         pci_unregister_driver(&mthca_driver);
1397         mthca_catas_cleanup();
1398 }
1399
1400 module_init(mthca_init);
1401 module_exit(mthca_cleanup);