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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 = 0;
  65 module_param(msi_x, int, 0444);
  66 MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero");
  67
  68 static int msi = 0;
  69 module_param(msi, int, 0444);
  70 MODULE_PARM_DESC(msi, "attempt to use MSI if nonzero");
  71
  72 #else /* CONFIG_PCI_MSI */
  73
  74 #define msi_x (0)
  75 #define msi   (0)
  76
  77 #endif /* CONFIG_PCI_MSI */
  78
  79 static int tune_pci = 0;
  80 module_param(tune_pci, int, 0444);
  81 MODULE_PARM_DESC(tune_pci, "increase PCI burst from the default set by BIOS if nonzero");
  82
  83 DEFINE_MUTEX(mthca_device_mutex);
  84
  85 #define MTHCA_DEFAULT_NUM_QP            (1 << 16)
  86 #define MTHCA_DEFAULT_RDB_PER_QP        (1 << 2)
  87 #define MTHCA_DEFAULT_NUM_CQ            (1 << 16)
  88 #define MTHCA_DEFAULT_NUM_MCG           (1 << 13)
  89 #define MTHCA_DEFAULT_NUM_MPT           (1 << 17)
  90 #define MTHCA_DEFAULT_NUM_MTT           (1 << 20)
  91 #define MTHCA_DEFAULT_NUM_UDAV          (1 << 15)
  92 #define MTHCA_DEFAULT_NUM_RESERVED_MTTS (1 << 18)
  93 #define MTHCA_DEFAULT_NUM_UARC_SIZE     (1 << 18)
  94
  95 static struct mthca_profile hca_profile = {
  96         .num_qp             = MTHCA_DEFAULT_NUM_QP,
  97         .rdb_per_qp         = MTHCA_DEFAULT_RDB_PER_QP,
  98         .num_cq             = MTHCA_DEFAULT_NUM_CQ,
  99         .num_mcg            = MTHCA_DEFAULT_NUM_MCG,
 100         .num_mpt            = MTHCA_DEFAULT_NUM_MPT,
 101         .num_mtt            = MTHCA_DEFAULT_NUM_MTT,
 102         .num_udav           = MTHCA_DEFAULT_NUM_UDAV,          /* Tavor only */
 103         .fmr_reserved_mtts  = MTHCA_DEFAULT_NUM_RESERVED_MTTS, /* Tavor only */
 104         .uarc_size          = MTHCA_DEFAULT_NUM_UARC_SIZE,     /* Arbel only */
 105 };
 106
 107 module_param_named(num_qp, hca_profile.num_qp, int, 0444);
 108 MODULE_PARM_DESC(num_qp, "maximum number of QPs per HCA");
 109
 110 module_param_named(rdb_per_qp, hca_profile.rdb_per_qp, int, 0444);
 111 MODULE_PARM_DESC(rdb_per_qp, "number of RDB buffers per QP");
 112
 113 module_param_named(num_cq, hca_profile.num_cq, int, 0444);
 114 MODULE_PARM_DESC(num_cq, "maximum number of CQs per HCA");
 115
 116 module_param_named(num_mcg, hca_profile.num_mcg, int, 0444);
 117 MODULE_PARM_DESC(num_mcg, "maximum number of multicast groups per HCA");
 118
 119 module_param_named(num_mpt, hca_profile.num_mpt, int, 0444);
 120 MODULE_PARM_DESC(num_mpt,
 121                 "maximum number of memory protection table entries per HCA");
 122
 123 module_param_named(num_mtt, hca_profile.num_mtt, int, 0444);
 124 MODULE_PARM_DESC(num_mtt,
 125                  "maximum number of memory translation table segments per HCA");
 126
 127 module_param_named(num_udav, hca_profile.num_udav, int, 0444);
 128 MODULE_PARM_DESC(num_udav, "maximum number of UD address vectors per HCA");
 129
 130 module_param_named(fmr_reserved_mtts, hca_profile.fmr_reserved_mtts, int, 0444);
 131 MODULE_PARM_DESC(fmr_reserved_mtts,
 132                  "number of memory translation table segments reserved for FMR");
 133
 134 static const char mthca_version[] __devinitdata =
 135         DRV_NAME ": Mellanox InfiniBand HCA driver v"
 136         DRV_VERSION " (" DRV_RELDATE ")\n";
 137
 138 static int mthca_tune_pci(struct mthca_dev *mdev)
 139 {
 140         int cap;
 141         u16 val;
 142
 143         if (!tune_pci)
 144                 return 0;
 145
 146         /* First try to max out Read Byte Count */
 147         cap = pci_find_capability(mdev->pdev, PCI_CAP_ID_PCIX);
 148         if (cap) {
 149                 if (pci_read_config_word(mdev->pdev, cap + PCI_X_CMD, &val)) {
 150                         mthca_err(mdev, "Couldn't read PCI-X command register, "
 151                                   "aborting.\n");
 152                         return -ENODEV;
 153                 }
 154                 val = (val & ~PCI_X_CMD_MAX_READ) | (3 << 2);
 155                 if (pci_write_config_word(mdev->pdev, cap + PCI_X_CMD, val)) {
 156                         mthca_err(mdev, "Couldn't write PCI-X command register, "
 157                                   "aborting.\n");
 158                         return -ENODEV;
 159                 }
 160         } else if (!(mdev->mthca_flags & MTHCA_FLAG_PCIE))
 161                 mthca_info(mdev, "No PCI-X capability, not setting RBC.\n");
 162
 163         cap = pci_find_capability(mdev->pdev, PCI_CAP_ID_EXP);
 164         if (cap) {
 165                 if (pci_read_config_word(mdev->pdev, cap + PCI_EXP_DEVCTL, &val)) {
 166                         mthca_err(mdev, "Couldn't read PCI Express device control "
 167                                   "register, aborting.\n");
 168                         return -ENODEV;
 169                 }
 170                 val = (val & ~PCI_EXP_DEVCTL_READRQ) | (5 << 12);
 171                 if (pci_write_config_word(mdev->pdev, cap + PCI_EXP_DEVCTL, val)) {
 172                         mthca_err(mdev, "Couldn't write PCI Express device control "
 173                                   "register, aborting.\n");
 174                         return -ENODEV;
 175                 }
 176         } else if (mdev->mthca_flags & MTHCA_FLAG_PCIE)
 177                 mthca_info(mdev, "No PCI Express capability, "
 178                            "not setting Max Read Request Size.\n");
 179
 180         return 0;
 181 }
 182
 183 static int mthca_dev_lim(struct mthca_dev *mdev, struct mthca_dev_lim *dev_lim)
 184 {
 185         int err;
 186         u8 status;
 187
 188         err = mthca_QUERY_DEV_LIM(mdev, dev_lim, &status);
 189         if (err) {
 190                 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
 191                 return err;
 192         }
 193         if (status) {
 194                 mthca_err(mdev, "QUERY_DEV_LIM returned status 0x%02x, "
 195                           "aborting.\n", status);
 196                 return -EINVAL;
 197         }
 198         if (dev_lim->min_page_sz > PAGE_SIZE) {
 199                 mthca_err(mdev, "HCA minimum page size of %d bigger than "
 200                           "kernel PAGE_SIZE of %ld, aborting.\n",
 201                           dev_lim->min_page_sz, PAGE_SIZE);
 202                 return -ENODEV;
 203         }
 204         if (dev_lim->num_ports > MTHCA_MAX_PORTS) {
 205                 mthca_err(mdev, "HCA has %d ports, but we only support %d, "
 206                           "aborting.\n",
 207                           dev_lim->num_ports, MTHCA_MAX_PORTS);
 208                 return -ENODEV;
 209         }
 210
 211         if (dev_lim->uar_size > pci_resource_len(mdev->pdev, 2)) {
 212                 mthca_err(mdev, "HCA reported UAR size of 0x%x bigger than "
 213                           "PCI resource 2 size of 0x%llx, aborting.\n",
 214                           dev_lim->uar_size,
 215                           (unsigned long long)pci_resource_len(mdev->pdev, 2));
 216                 return -ENODEV;
 217         }
 218
 219         mdev->limits.num_ports          = dev_lim->num_ports;
 220         mdev->limits.vl_cap             = dev_lim->max_vl;
 221         mdev->limits.mtu_cap            = dev_lim->max_mtu;
 222         mdev->limits.gid_table_len      = dev_lim->max_gids;
 223         mdev->limits.pkey_table_len     = dev_lim->max_pkeys;
 224         mdev->limits.local_ca_ack_delay = dev_lim->local_ca_ack_delay;
 225         mdev->limits.max_sg             = dev_lim->max_sg;
 226         mdev->limits.max_wqes           = dev_lim->max_qp_sz;
 227         mdev->limits.max_qp_init_rdma   = dev_lim->max_requester_per_qp;
 228         mdev->limits.reserved_qps       = dev_lim->reserved_qps;
 229         mdev->limits.max_srq_wqes       = dev_lim->max_srq_sz;
 230         mdev->limits.reserved_srqs      = dev_lim->reserved_srqs;
 231         mdev->limits.reserved_eecs      = dev_lim->reserved_eecs;
 232         mdev->limits.max_desc_sz        = dev_lim->max_desc_sz;
 233         mdev->limits.max_srq_sge        = mthca_max_srq_sge(mdev);
 234         /*
 235          * Subtract 1 from the limit because we need to allocate a
 236          * spare CQE so the HCA HW can tell the difference between an
 237          * empty CQ and a full CQ.
 238          */
 239         mdev->limits.max_cqes           = dev_lim->max_cq_sz - 1;
 240         mdev->limits.reserved_cqs       = dev_lim->reserved_cqs;
 241         mdev->limits.reserved_eqs       = dev_lim->reserved_eqs;
 242         mdev->limits.reserved_mtts      = dev_lim->reserved_mtts;
 243         mdev->limits.reserved_mrws      = dev_lim->reserved_mrws;
 244         mdev->limits.reserved_uars      = dev_lim->reserved_uars;
 245         mdev->limits.reserved_pds       = dev_lim->reserved_pds;
 246         mdev->limits.port_width_cap     = dev_lim->max_port_width;
 247         mdev->limits.page_size_cap      = ~(u32) (dev_lim->min_page_sz - 1);
 248         mdev->limits.flags              = dev_lim->flags;
 249         /*
 250          * For old FW that doesn't return static rate support, use a
 251          * value of 0x3 (only static rate values of 0 or 1 are handled),
 252          * except on Sinai, where even old FW can handle static rate
 253          * values of 2 and 3.
 254          */
 255         if (dev_lim->stat_rate_support)
 256                 mdev->limits.stat_rate_support = dev_lim->stat_rate_support;
 257         else if (mdev->mthca_flags & MTHCA_FLAG_SINAI_OPT)
 258                 mdev->limits.stat_rate_support = 0xf;
 259         else
 260                 mdev->limits.stat_rate_support = 0x3;
 261
 262         /* IB_DEVICE_RESIZE_MAX_WR not supported by driver.
 263            May be doable since hardware supports it for SRQ.
 264
 265            IB_DEVICE_N_NOTIFY_CQ is supported by hardware but not by driver.
 266
 267            IB_DEVICE_SRQ_RESIZE is supported by hardware but SRQ is not
 268            supported by driver. */
 269         mdev->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT |
 270                 IB_DEVICE_PORT_ACTIVE_EVENT |
 271                 IB_DEVICE_SYS_IMAGE_GUID |
 272                 IB_DEVICE_RC_RNR_NAK_GEN;
 273
 274         if (dev_lim->flags & DEV_LIM_FLAG_BAD_PKEY_CNTR)
 275                 mdev->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR;
 276
 277         if (dev_lim->flags & DEV_LIM_FLAG_BAD_QKEY_CNTR)
 278                 mdev->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR;
 279
 280         if (dev_lim->flags & DEV_LIM_FLAG_RAW_MULTI)
 281                 mdev->device_cap_flags |= IB_DEVICE_RAW_MULTI;
 282
 283         if (dev_lim->flags & DEV_LIM_FLAG_AUTO_PATH_MIG)
 284                 mdev->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG;
 285
 286         if (dev_lim->flags & DEV_LIM_FLAG_UD_AV_PORT_ENFORCE)
 287                 mdev->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE;
 288
 289         if (dev_lim->flags & DEV_LIM_FLAG_SRQ)
 290                 mdev->mthca_flags |= MTHCA_FLAG_SRQ;
 291
 292         return 0;
 293 }
 294
 295 static int mthca_init_tavor(struct mthca_dev *mdev)
 296 {
 297         u8 status;
 298         int err;
 299         struct mthca_dev_lim        dev_lim;
 300         struct mthca_profile        profile;
 301         struct mthca_init_hca_param init_hca;
 302
 303         err = mthca_SYS_EN(mdev, &status);
 304         if (err) {
 305                 mthca_err(mdev, "SYS_EN command failed, aborting.\n");
 306                 return err;
 307         }
 308         if (status) {
 309                 mthca_err(mdev, "SYS_EN returned status 0x%02x, "
 310                           "aborting.\n", status);
 311                 return -EINVAL;
 312         }
 313
 314         err = mthca_QUERY_FW(mdev, &status);
 315         if (err) {
 316                 mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
 317                 goto err_disable;
 318         }
 319         if (status) {
 320                 mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
 321                           "aborting.\n", status);
 322                 err = -EINVAL;
 323                 goto err_disable;
 324         }
 325         err = mthca_QUERY_DDR(mdev, &status);
 326         if (err) {
 327                 mthca_err(mdev, "QUERY_DDR command failed, aborting.\n");
 328                 goto err_disable;
 329         }
 330         if (status) {
 331                 mthca_err(mdev, "QUERY_DDR returned status 0x%02x, "
 332                           "aborting.\n", status);
 333                 err = -EINVAL;
 334                 goto err_disable;
 335         }
 336
 337         err = mthca_dev_lim(mdev, &dev_lim);
 338         if (err) {
 339                 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
 340                 goto err_disable;
 341         }
 342
 343         profile = hca_profile;
 344         profile.num_uar   = dev_lim.uar_size / PAGE_SIZE;
 345         profile.uarc_size = 0;
 346         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 347                 profile.num_srq = dev_lim.max_srqs;
 348
 349         err = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
 350         if (err < 0)
 351                 goto err_disable;
 352
 353         err = mthca_INIT_HCA(mdev, &init_hca, &status);
 354         if (err) {
 355                 mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
 356                 goto err_disable;
 357         }
 358         if (status) {
 359                 mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
 360                           "aborting.\n", status);
 361                 err = -EINVAL;
 362                 goto err_disable;
 363         }
 364
 365         return 0;
 366
 367 err_disable:
 368         mthca_SYS_DIS(mdev, &status);
 369
 370         return err;
 371 }
 372
 373 static int mthca_load_fw(struct mthca_dev *mdev)
 374 {
 375         u8 status;
 376         int err;
 377
 378         /* FIXME: use HCA-attached memory for FW if present */
 379
 380         mdev->fw.arbel.fw_icm =
 381                 mthca_alloc_icm(mdev, mdev->fw.arbel.fw_pages,
 382                                 GFP_HIGHUSER | __GFP_NOWARN);
 383         if (!mdev->fw.arbel.fw_icm) {
 384                 mthca_err(mdev, "Couldn't allocate FW area, aborting.\n");
 385                 return -ENOMEM;
 386         }
 387
 388         err = mthca_MAP_FA(mdev, mdev->fw.arbel.fw_icm, &status);
 389         if (err) {
 390                 mthca_err(mdev, "MAP_FA command failed, aborting.\n");
 391                 goto err_free;
 392         }
 393         if (status) {
 394                 mthca_err(mdev, "MAP_FA returned status 0x%02x, aborting.\n", status);
 395                 err = -EINVAL;
 396                 goto err_free;
 397         }
 398         err = mthca_RUN_FW(mdev, &status);
 399         if (err) {
 400                 mthca_err(mdev, "RUN_FW command failed, aborting.\n");
 401                 goto err_unmap_fa;
 402         }
 403         if (status) {
 404                 mthca_err(mdev, "RUN_FW returned status 0x%02x, aborting.\n", status);
 405                 err = -EINVAL;
 406                 goto err_unmap_fa;
 407         }
 408
 409         return 0;
 410
 411 err_unmap_fa:
 412         mthca_UNMAP_FA(mdev, &status);
 413
 414 err_free:
 415         mthca_free_icm(mdev, mdev->fw.arbel.fw_icm);
 416         return err;
 417 }
 418
 419 static int mthca_init_icm(struct mthca_dev *mdev,
 420                           struct mthca_dev_lim *dev_lim,
 421                           struct mthca_init_hca_param *init_hca,
 422                           u64 icm_size)
 423 {
 424         u64 aux_pages;
 425         u8 status;
 426         int err;
 427
 428         err = mthca_SET_ICM_SIZE(mdev, icm_size, &aux_pages, &status);
 429         if (err) {
 430                 mthca_err(mdev, "SET_ICM_SIZE command failed, aborting.\n");
 431                 return err;
 432         }
 433         if (status) {
 434                 mthca_err(mdev, "SET_ICM_SIZE returned status 0x%02x, "
 435                           "aborting.\n", status);
 436                 return -EINVAL;
 437         }
 438
 439         mthca_dbg(mdev, "%lld KB of HCA context requires %lld KB aux memory.\n",
 440                   (unsigned long long) icm_size >> 10,
 441                   (unsigned long long) aux_pages << 2);
 442
 443         mdev->fw.arbel.aux_icm = mthca_alloc_icm(mdev, aux_pages,
 444                                                  GFP_HIGHUSER | __GFP_NOWARN);
 445         if (!mdev->fw.arbel.aux_icm) {
 446                 mthca_err(mdev, "Couldn't allocate aux memory, aborting.\n");
 447                 return -ENOMEM;
 448         }
 449
 450         err = mthca_MAP_ICM_AUX(mdev, mdev->fw.arbel.aux_icm, &status);
 451         if (err) {
 452                 mthca_err(mdev, "MAP_ICM_AUX command failed, aborting.\n");
 453                 goto err_free_aux;
 454         }
 455         if (status) {
 456                 mthca_err(mdev, "MAP_ICM_AUX returned status 0x%02x, aborting.\n", status);
 457                 err = -EINVAL;
 458                 goto err_free_aux;
 459         }
 460
 461         err = mthca_map_eq_icm(mdev, init_hca->eqc_base);
 462         if (err) {
 463                 mthca_err(mdev, "Failed to map EQ context memory, aborting.\n");
 464                 goto err_unmap_aux;
 465         }
 466
 467         mdev->mr_table.mtt_table = mthca_alloc_icm_table(mdev, init_hca->mtt_base,
 468                                                          MTHCA_MTT_SEG_SIZE,
 469                                                          mdev->limits.num_mtt_segs,
 470                                                          mdev->limits.reserved_mtts, 1);
 471         if (!mdev->mr_table.mtt_table) {
 472                 mthca_err(mdev, "Failed to map MTT context memory, aborting.\n");
 473                 err = -ENOMEM;
 474                 goto err_unmap_eq;
 475         }
 476
 477         mdev->mr_table.mpt_table = mthca_alloc_icm_table(mdev, init_hca->mpt_base,
 478                                                          dev_lim->mpt_entry_sz,
 479                                                          mdev->limits.num_mpts,
 480                                                          mdev->limits.reserved_mrws, 1);
 481         if (!mdev->mr_table.mpt_table) {
 482                 mthca_err(mdev, "Failed to map MPT context memory, aborting.\n");
 483                 err = -ENOMEM;
 484                 goto err_unmap_mtt;
 485         }
 486
 487         mdev->qp_table.qp_table = mthca_alloc_icm_table(mdev, init_hca->qpc_base,
 488                                                         dev_lim->qpc_entry_sz,
 489                                                         mdev->limits.num_qps,
 490                                                         mdev->limits.reserved_qps, 0);
 491         if (!mdev->qp_table.qp_table) {
 492                 mthca_err(mdev, "Failed to map QP context memory, aborting.\n");
 493                 err = -ENOMEM;
 494                 goto err_unmap_mpt;
 495         }
 496
 497         mdev->qp_table.eqp_table = mthca_alloc_icm_table(mdev, init_hca->eqpc_base,
 498                                                          dev_lim->eqpc_entry_sz,
 499                                                          mdev->limits.num_qps,
 500                                                          mdev->limits.reserved_qps, 0);
 501         if (!mdev->qp_table.eqp_table) {
 502                 mthca_err(mdev, "Failed to map EQP context memory, aborting.\n");
 503                 err = -ENOMEM;
 504                 goto err_unmap_qp;
 505         }
 506
 507         mdev->qp_table.rdb_table = mthca_alloc_icm_table(mdev, init_hca->rdb_base,
 508                                                          MTHCA_RDB_ENTRY_SIZE,
 509                                                          mdev->limits.num_qps <<
 510                                                          mdev->qp_table.rdb_shift,
 511                                                          0, 0);
 512         if (!mdev->qp_table.rdb_table) {
 513                 mthca_err(mdev, "Failed to map RDB context memory, aborting\n");
 514                 err = -ENOMEM;
 515                 goto err_unmap_eqp;
 516         }
 517
 518        mdev->cq_table.table = mthca_alloc_icm_table(mdev, init_hca->cqc_base,
 519                                                     dev_lim->cqc_entry_sz,
 520                                                     mdev->limits.num_cqs,
 521                                                     mdev->limits.reserved_cqs, 0);
 522         if (!mdev->cq_table.table) {
 523                 mthca_err(mdev, "Failed to map CQ context memory, aborting.\n");
 524                 err = -ENOMEM;
 525                 goto err_unmap_rdb;
 526         }
 527
 528         if (mdev->mthca_flags & MTHCA_FLAG_SRQ) {
 529                 mdev->srq_table.table =
 530                         mthca_alloc_icm_table(mdev, init_hca->srqc_base,
 531                                               dev_lim->srq_entry_sz,
 532                                               mdev->limits.num_srqs,
 533                                               mdev->limits.reserved_srqs, 0);
 534                 if (!mdev->srq_table.table) {
 535                         mthca_err(mdev, "Failed to map SRQ context memory, "
 536                                   "aborting.\n");
 537                         err = -ENOMEM;
 538                         goto err_unmap_cq;
 539                 }
 540         }
 541
 542         /*
 543          * It's not strictly required, but for simplicity just map the
 544          * whole multicast group table now.  The table isn't very big
 545          * and it's a lot easier than trying to track ref counts.
 546          */
 547         mdev->mcg_table.table = mthca_alloc_icm_table(mdev, init_hca->mc_base,
 548                                                       MTHCA_MGM_ENTRY_SIZE,
 549                                                       mdev->limits.num_mgms +
 550                                                       mdev->limits.num_amgms,
 551                                                       mdev->limits.num_mgms +
 552                                                       mdev->limits.num_amgms,
 553                                                       0);
 554         if (!mdev->mcg_table.table) {
 555                 mthca_err(mdev, "Failed to map MCG context memory, aborting.\n");
 556                 err = -ENOMEM;
 557                 goto err_unmap_srq;
 558         }
 559
 560         return 0;
 561
 562 err_unmap_srq:
 563         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 564                 mthca_free_icm_table(mdev, mdev->srq_table.table);
 565
 566 err_unmap_cq:
 567         mthca_free_icm_table(mdev, mdev->cq_table.table);
 568
 569 err_unmap_rdb:
 570         mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
 571
 572 err_unmap_eqp:
 573         mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
 574
 575 err_unmap_qp:
 576         mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
 577
 578 err_unmap_mpt:
 579         mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
 580
 581 err_unmap_mtt:
 582         mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
 583
 584 err_unmap_eq:
 585         mthca_unmap_eq_icm(mdev);
 586
 587 err_unmap_aux:
 588         mthca_UNMAP_ICM_AUX(mdev, &status);
 589
 590 err_free_aux:
 591         mthca_free_icm(mdev, mdev->fw.arbel.aux_icm);
 592
 593         return err;
 594 }
 595
 596 static void mthca_free_icms(struct mthca_dev *mdev)
 597 {
 598         u8 status;
 599
 600         mthca_free_icm_table(mdev, mdev->mcg_table.table);
 601         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 602                 mthca_free_icm_table(mdev, mdev->srq_table.table);
 603         mthca_free_icm_table(mdev, mdev->cq_table.table);
 604         mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
 605         mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
 606         mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
 607         mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
 608         mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
 609         mthca_unmap_eq_icm(mdev);
 610
 611         mthca_UNMAP_ICM_AUX(mdev, &status);
 612         mthca_free_icm(mdev, mdev->fw.arbel.aux_icm);
 613 }
 614
 615 static int mthca_init_arbel(struct mthca_dev *mdev)
 616 {
 617         struct mthca_dev_lim        dev_lim;
 618         struct mthca_profile        profile;
 619         struct mthca_init_hca_param init_hca;
 620         u64 icm_size;
 621         u8 status;
 622         int err;
 623
 624         err = mthca_QUERY_FW(mdev, &status);
 625         if (err) {
 626                 mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
 627                 return err;
 628         }
 629         if (status) {
 630                 mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
 631                           "aborting.\n", status);
 632                 return -EINVAL;
 633         }
 634
 635         err = mthca_ENABLE_LAM(mdev, &status);
 636         if (err) {
 637                 mthca_err(mdev, "ENABLE_LAM command failed, aborting.\n");
 638                 return err;
 639         }
 640         if (status == MTHCA_CMD_STAT_LAM_NOT_PRE) {
 641                 mthca_dbg(mdev, "No HCA-attached memory (running in MemFree mode)\n");
 642                 mdev->mthca_flags |= MTHCA_FLAG_NO_LAM;
 643         } else if (status) {
 644                 mthca_err(mdev, "ENABLE_LAM returned status 0x%02x, "
 645                           "aborting.\n", status);
 646                 return -EINVAL;
 647         }
 648
 649         err = mthca_load_fw(mdev);
 650         if (err) {
 651                 mthca_err(mdev, "Failed to start FW, aborting.\n");
 652                 goto err_disable;
 653         }
 654
 655         err = mthca_dev_lim(mdev, &dev_lim);
 656         if (err) {
 657                 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
 658                 goto err_stop_fw;
 659         }
 660
 661         profile = hca_profile;
 662         profile.num_uar  = dev_lim.uar_size / PAGE_SIZE;
 663         profile.num_udav = 0;
 664         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 665                 profile.num_srq = dev_lim.max_srqs;
 666
 667         icm_size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
 668         if ((int) icm_size < 0) {
 669                 err = icm_size;
 670                 goto err_stop_fw;
 671         }
 672
 673         err = mthca_init_icm(mdev, &dev_lim, &init_hca, icm_size);
 674         if (err)
 675                 goto err_stop_fw;
 676
 677         err = mthca_INIT_HCA(mdev, &init_hca, &status);
 678         if (err) {
 679                 mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
 680                 goto err_free_icm;
 681         }
 682         if (status) {
 683                 mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
 684                           "aborting.\n", status);
 685                 err = -EINVAL;
 686                 goto err_free_icm;
 687         }
 688
 689         return 0;
 690
 691 err_free_icm:
 692         mthca_free_icms(mdev);
 693
 694 err_stop_fw:
 695         mthca_UNMAP_FA(mdev, &status);
 696         mthca_free_icm(mdev, mdev->fw.arbel.fw_icm);
 697
 698 err_disable:
 699         if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
 700                 mthca_DISABLE_LAM(mdev, &status);
 701
 702         return err;
 703 }
 704
 705 static void mthca_close_hca(struct mthca_dev *mdev)
 706 {
 707         u8 status;
 708
 709         mthca_CLOSE_HCA(mdev, 0, &status);
 710
 711         if (mthca_is_memfree(mdev)) {
 712                 mthca_free_icms(mdev);
 713
 714                 mthca_UNMAP_FA(mdev, &status);
 715                 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm);
 716
 717                 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
 718                         mthca_DISABLE_LAM(mdev, &status);
 719         } else
 720                 mthca_SYS_DIS(mdev, &status);
 721 }
 722
 723 static int mthca_init_hca(struct mthca_dev *mdev)
 724 {
 725         u8 status;
 726         int err;
 727         struct mthca_adapter adapter;
 728
 729         if (mthca_is_memfree(mdev))
 730                 err = mthca_init_arbel(mdev);
 731         else
 732                 err = mthca_init_tavor(mdev);
 733
 734         if (err)
 735                 return err;
 736
 737         err = mthca_QUERY_ADAPTER(mdev, &adapter, &status);
 738         if (err) {
 739                 mthca_err(mdev, "QUERY_ADAPTER command failed, aborting.\n");
 740                 goto err_close;
 741         }
 742         if (status) {
 743                 mthca_err(mdev, "QUERY_ADAPTER returned status 0x%02x, "
 744                           "aborting.\n", status);
 745                 err = -EINVAL;
 746                 goto err_close;
 747         }
 748
 749         mdev->eq_table.inta_pin = adapter.inta_pin;
 750         mdev->rev_id            = adapter.revision_id;
 751         memcpy(mdev->board_id, adapter.board_id, sizeof mdev->board_id);
 752
 753         return 0;
 754
 755 err_close:
 756         mthca_close_hca(mdev);
 757         return err;
 758 }
 759
 760 static int mthca_setup_hca(struct mthca_dev *dev)
 761 {
 762         int err;
 763         u8 status;
 764
 765         MTHCA_INIT_DOORBELL_LOCK(&dev->doorbell_lock);
 766
 767         err = mthca_init_uar_table(dev);
 768         if (err) {
 769                 mthca_err(dev, "Failed to initialize "
 770                           "user access region table, aborting.\n");
 771                 return err;
 772         }
 773
 774         err = mthca_uar_alloc(dev, &dev->driver_uar);
 775         if (err) {
 776                 mthca_err(dev, "Failed to allocate driver access region, "
 777                           "aborting.\n");
 778                 goto err_uar_table_free;
 779         }
 780
 781         dev->kar = ioremap(dev->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
 782         if (!dev->kar) {
 783                 mthca_err(dev, "Couldn't map kernel access region, "
 784                           "aborting.\n");
 785                 err = -ENOMEM;
 786                 goto err_uar_free;
 787         }
 788
 789         err = mthca_init_pd_table(dev);
 790         if (err) {
 791                 mthca_err(dev, "Failed to initialize "
 792                           "protection domain table, aborting.\n");
 793                 goto err_kar_unmap;
 794         }
 795
 796         err = mthca_init_mr_table(dev);
 797         if (err) {
 798                 mthca_err(dev, "Failed to initialize "
 799                           "memory region table, aborting.\n");
 800                 goto err_pd_table_free;
 801         }
 802
 803         err = mthca_pd_alloc(dev, 1, &dev->driver_pd);
 804         if (err) {
 805                 mthca_err(dev, "Failed to create driver PD, "
 806                           "aborting.\n");
 807                 goto err_mr_table_free;
 808         }
 809
 810         err = mthca_init_eq_table(dev);
 811         if (err) {
 812                 mthca_err(dev, "Failed to initialize "
 813                           "event queue table, aborting.\n");
 814                 goto err_pd_free;
 815         }
 816
 817         err = mthca_cmd_use_events(dev);
 818         if (err) {
 819                 mthca_err(dev, "Failed to switch to event-driven "
 820                           "firmware commands, aborting.\n");
 821                 goto err_eq_table_free;
 822         }
 823
 824         err = mthca_NOP(dev, &status);
 825         if (err || status) {
 826                 mthca_err(dev, "NOP command failed to generate interrupt (IRQ %d), aborting.\n",
 827                           dev->mthca_flags & MTHCA_FLAG_MSI_X ?
 828                           dev->eq_table.eq[MTHCA_EQ_CMD].msi_x_vector :
 829                           dev->pdev->irq);
 830                 if (dev->mthca_flags & (MTHCA_FLAG_MSI | MTHCA_FLAG_MSI_X))
 831                         mthca_err(dev, "Try again with MSI/MSI-X disabled.\n");
 832                 else
 833                         mthca_err(dev, "BIOS or ACPI interrupt routing problem?\n");
 834
 835                 goto err_cmd_poll;
 836         }
 837
 838         mthca_dbg(dev, "NOP command IRQ test passed\n");
 839
 840         err = mthca_init_cq_table(dev);
 841         if (err) {
 842                 mthca_err(dev, "Failed to initialize "
 843                           "completion queue table, aborting.\n");
 844                 goto err_cmd_poll;
 845         }
 846
 847         err = mthca_init_srq_table(dev);
 848         if (err) {
 849                 mthca_err(dev, "Failed to initialize "
 850                           "shared receive queue table, aborting.\n");
 851                 goto err_cq_table_free;
 852         }
 853
 854         err = mthca_init_qp_table(dev);
 855         if (err) {
 856                 mthca_err(dev, "Failed to initialize "
 857                           "queue pair table, aborting.\n");
 858                 goto err_srq_table_free;
 859         }
 860
 861         err = mthca_init_av_table(dev);
 862         if (err) {
 863                 mthca_err(dev, "Failed to initialize "
 864                           "address vector table, aborting.\n");
 865                 goto err_qp_table_free;
 866         }
 867
 868         err = mthca_init_mcg_table(dev);
 869         if (err) {
 870                 mthca_err(dev, "Failed to initialize "
 871                           "multicast group table, aborting.\n");
 872                 goto err_av_table_free;
 873         }
 874
 875         return 0;
 876
 877 err_av_table_free:
 878         mthca_cleanup_av_table(dev);
 879
 880 err_qp_table_free:
 881         mthca_cleanup_qp_table(dev);
 882
 883 err_srq_table_free:
 884         mthca_cleanup_srq_table(dev);
 885
 886 err_cq_table_free:
 887         mthca_cleanup_cq_table(dev);
 888
 889 err_cmd_poll:
 890         mthca_cmd_use_polling(dev);
 891
 892 err_eq_table_free:
 893         mthca_cleanup_eq_table(dev);
 894
 895 err_pd_free:
 896         mthca_pd_free(dev, &dev->driver_pd);
 897
 898 err_mr_table_free:
 899         mthca_cleanup_mr_table(dev);
 900
 901 err_pd_table_free:
 902         mthca_cleanup_pd_table(dev);
 903
 904 err_kar_unmap:
 905         iounmap(dev->kar);
 906
 907 err_uar_free:
 908         mthca_uar_free(dev, &dev->driver_uar);
 909
 910 err_uar_table_free:
 911         mthca_cleanup_uar_table(dev);
 912         return err;
 913 }
 914
 915 static int mthca_request_regions(struct pci_dev *pdev, int ddr_hidden)
 916 {
 917         int err;
 918
 919         /*
 920          * We can't just use pci_request_regions() because the MSI-X
 921          * table is right in the middle of the first BAR.  If we did
 922          * pci_request_region and grab all of the first BAR, then
 923          * setting up MSI-X would fail, since the PCI core wants to do
 924          * request_mem_region on the MSI-X vector table.
 925          *
 926          * So just request what we need right now, and request any
 927          * other regions we need when setting up EQs.
 928          */
 929         if (!request_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
 930                                 MTHCA_HCR_SIZE, DRV_NAME))
 931                 return -EBUSY;
 932
 933         err = pci_request_region(pdev, 2, DRV_NAME);
 934         if (err)
 935                 goto err_bar2_failed;
 936
 937         if (!ddr_hidden) {
 938                 err = pci_request_region(pdev, 4, DRV_NAME);
 939                 if (err)
 940                         goto err_bar4_failed;
 941         }
 942
 943         return 0;
 944
 945 err_bar4_failed:
 946         pci_release_region(pdev, 2);
 947
 948 err_bar2_failed:
 949         release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
 950                            MTHCA_HCR_SIZE);
 951
 952         return err;
 953 }
 954
 955 static void mthca_release_regions(struct pci_dev *pdev,
 956                                   int ddr_hidden)
 957 {
 958         if (!ddr_hidden)
 959                 pci_release_region(pdev, 4);
 960
 961         pci_release_region(pdev, 2);
 962
 963         release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
 964                            MTHCA_HCR_SIZE);
 965 }
 966
 967 static int mthca_enable_msi_x(struct mthca_dev *mdev)
 968 {
 969         struct msix_entry entries[3];
 970         int err;
 971
 972         entries[0].entry = 0;
 973         entries[1].entry = 1;
 974         entries[2].entry = 2;
 975
 976         err = pci_enable_msix(mdev->pdev, entries, ARRAY_SIZE(entries));
 977         if (err) {
 978                 if (err > 0)
 979                         mthca_info(mdev, "Only %d MSI-X vectors available, "
 980                                    "not using MSI-X\n", err);
 981                 return err;
 982         }
 983
 984         mdev->eq_table.eq[MTHCA_EQ_COMP ].msi_x_vector = entries[0].vector;
 985         mdev->eq_table.eq[MTHCA_EQ_ASYNC].msi_x_vector = entries[1].vector;
 986         mdev->eq_table.eq[MTHCA_EQ_CMD  ].msi_x_vector = entries[2].vector;
 987
 988         return 0;
 989 }
 990
 991 /* Types of supported HCA */
 992 enum {
 993         TAVOR,                  /* MT23108                        */
 994         ARBEL_COMPAT,           /* MT25208 in Tavor compat mode   */
 995         ARBEL_NATIVE,           /* MT25208 with extended features */
 996         SINAI                   /* MT25204 */
 997 };
 998
 999 #define MTHCA_FW_VER(major, minor, subminor) \
1000         (((u64) (major) << 32) | ((u64) (minor) << 16) | (u64) (subminor))
1001
1002 static struct {
1003         u64 latest_fw;
1004         u32 flags;
1005 } mthca_hca_table[] = {
1006         [TAVOR]        = { .latest_fw = MTHCA_FW_VER(3, 4, 0),
1007                            .flags     = 0 },
1008         [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 7, 600),
1009                            .flags     = MTHCA_FLAG_PCIE },
1010         [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 1, 400),
1011                            .flags     = MTHCA_FLAG_MEMFREE |
1012                                         MTHCA_FLAG_PCIE },
1013         [SINAI]        = { .latest_fw = MTHCA_FW_VER(1, 1, 0),
1014                            .flags     = MTHCA_FLAG_MEMFREE |
1015                                         MTHCA_FLAG_PCIE    |
1016                                         MTHCA_FLAG_SINAI_OPT }
1017 };
1018
1019 static int __mthca_init_one(struct pci_dev *pdev, int hca_type)
1020 {
1021         int ddr_hidden = 0;
1022         int err;
1023         struct mthca_dev *mdev;
1024
1025         printk(KERN_INFO PFX "Initializing %s\n",
1026                pci_name(pdev));
1027
1028         err = pci_enable_device(pdev);
1029         if (err) {
1030                 dev_err(&pdev->dev, "Cannot enable PCI device, "
1031                         "aborting.\n");
1032                 return err;
1033         }
1034
1035         /*
1036          * Check for BARs.  We expect 0: 1MB, 2: 8MB, 4: DDR (may not
1037          * be present)
1038          */
1039         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) ||
1040             pci_resource_len(pdev, 0) != 1 << 20) {
1041                 dev_err(&pdev->dev, "Missing DCS, aborting.\n");
1042                 err = -ENODEV;
1043                 goto err_disable_pdev;
1044         }
1045         if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
1046                 dev_err(&pdev->dev, "Missing UAR, aborting.\n");
1047                 err = -ENODEV;
1048                 goto err_disable_pdev;
1049         }
1050         if (!(pci_resource_flags(pdev, 4) & IORESOURCE_MEM))
1051                 ddr_hidden = 1;
1052
1053         err = mthca_request_regions(pdev, ddr_hidden);
1054         if (err) {
1055                 dev_err(&pdev->dev, "Cannot obtain PCI resources, "
1056                         "aborting.\n");
1057                 goto err_disable_pdev;
1058         }
1059
1060         pci_set_master(pdev);
1061
1062         err = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
1063         if (err) {
1064                 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n");
1065                 err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
1066                 if (err) {
1067                         dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n");
1068                         goto err_free_res;
1069                 }
1070         }
1071         err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
1072         if (err) {
1073                 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit "
1074                          "consistent PCI DMA mask.\n");
1075                 err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
1076                 if (err) {
1077                         dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
1078                                 "aborting.\n");
1079                         goto err_free_res;
1080                 }
1081         }
1082
1083         mdev = (struct mthca_dev *) ib_alloc_device(sizeof *mdev);
1084         if (!mdev) {
1085                 dev_err(&pdev->dev, "Device struct alloc failed, "
1086                         "aborting.\n");
1087                 err = -ENOMEM;
1088                 goto err_free_res;
1089         }
1090
1091         mdev->pdev = pdev;
1092
1093         mdev->mthca_flags = mthca_hca_table[hca_type].flags;
1094         if (ddr_hidden)
1095                 mdev->mthca_flags |= MTHCA_FLAG_DDR_HIDDEN;
1096
1097         /*
1098          * Now reset the HCA before we touch the PCI capabilities or
1099          * attempt a firmware command, since a boot ROM may have left
1100          * the HCA in an undefined state.
1101          */
1102         err = mthca_reset(mdev);
1103         if (err) {
1104                 mthca_err(mdev, "Failed to reset HCA, aborting.\n");
1105                 goto err_free_dev;
1106         }
1107
1108         if (msi_x && !mthca_enable_msi_x(mdev))
1109                 mdev->mthca_flags |= MTHCA_FLAG_MSI_X;
1110         if (msi && !(mdev->mthca_flags & MTHCA_FLAG_MSI_X) &&
1111             !pci_enable_msi(pdev))
1112                 mdev->mthca_flags |= MTHCA_FLAG_MSI;
1113
1114         if (mthca_cmd_init(mdev)) {
1115                 mthca_err(mdev, "Failed to init command interface, aborting.\n");
1116                 goto err_free_dev;
1117         }
1118
1119         err = mthca_tune_pci(mdev);
1120         if (err)
1121                 goto err_cmd;
1122
1123         err = mthca_init_hca(mdev);
1124         if (err)
1125                 goto err_cmd;
1126
1127         if (mdev->fw_ver < mthca_hca_table[hca_type].latest_fw) {
1128                 mthca_warn(mdev, "HCA FW version %d.%d.%d is old (%d.%d.%d is current).\n",
1129                            (int) (mdev->fw_ver >> 32), (int) (mdev->fw_ver >> 16) & 0xffff,
1130                            (int) (mdev->fw_ver & 0xffff),
1131                            (int) (mthca_hca_table[hca_type].latest_fw >> 32),
1132                            (int) (mthca_hca_table[hca_type].latest_fw >> 16) & 0xffff,
1133                            (int) (mthca_hca_table[hca_type].latest_fw & 0xffff));
1134                 mthca_warn(mdev, "If you have problems, try updating your HCA FW.\n");
1135         }
1136
1137         err = mthca_setup_hca(mdev);
1138         if (err)
1139                 goto err_close;
1140
1141         err = mthca_register_device(mdev);
1142         if (err)
1143                 goto err_cleanup;
1144
1145         err = mthca_create_agents(mdev);
1146         if (err)
1147                 goto err_unregister;
1148
1149         pci_set_drvdata(pdev, mdev);
1150         mdev->hca_type = hca_type;
1151
1152         return 0;
1153
1154 err_unregister:
1155         mthca_unregister_device(mdev);
1156
1157 err_cleanup:
1158         mthca_cleanup_mcg_table(mdev);
1159         mthca_cleanup_av_table(mdev);
1160         mthca_cleanup_qp_table(mdev);
1161         mthca_cleanup_srq_table(mdev);
1162         mthca_cleanup_cq_table(mdev);
1163         mthca_cmd_use_polling(mdev);
1164         mthca_cleanup_eq_table(mdev);
1165
1166         mthca_pd_free(mdev, &mdev->driver_pd);
1167
1168         mthca_cleanup_mr_table(mdev);
1169         mthca_cleanup_pd_table(mdev);
1170         mthca_cleanup_uar_table(mdev);
1171
1172 err_close:
1173         mthca_close_hca(mdev);
1174
1175 err_cmd:
1176         mthca_cmd_cleanup(mdev);
1177
1178 err_free_dev:
1179         if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1180                 pci_disable_msix(pdev);
1181         if (mdev->mthca_flags & MTHCA_FLAG_MSI)
1182                 pci_disable_msi(pdev);
1183
1184         ib_dealloc_device(&mdev->ib_dev);
1185
1186 err_free_res:
1187         mthca_release_regions(pdev, ddr_hidden);
1188
1189 err_disable_pdev:
1190         pci_disable_device(pdev);
1191         pci_set_drvdata(pdev, NULL);
1192         return err;
1193 }
1194
1195 static void __mthca_remove_one(struct pci_dev *pdev)
1196 {
1197         struct mthca_dev *mdev = pci_get_drvdata(pdev);
1198         u8 status;
1199         int p;
1200
1201         if (mdev) {
1202                 mthca_free_agents(mdev);
1203                 mthca_unregister_device(mdev);
1204
1205                 for (p = 1; p <= mdev->limits.num_ports; ++p)
1206                         mthca_CLOSE_IB(mdev, p, &status);
1207
1208                 mthca_cleanup_mcg_table(mdev);
1209                 mthca_cleanup_av_table(mdev);
1210                 mthca_cleanup_qp_table(mdev);
1211                 mthca_cleanup_srq_table(mdev);
1212                 mthca_cleanup_cq_table(mdev);
1213                 mthca_cmd_use_polling(mdev);
1214                 mthca_cleanup_eq_table(mdev);
1215
1216                 mthca_pd_free(mdev, &mdev->driver_pd);
1217
1218                 mthca_cleanup_mr_table(mdev);
1219                 mthca_cleanup_pd_table(mdev);
1220
1221                 iounmap(mdev->kar);
1222                 mthca_uar_free(mdev, &mdev->driver_uar);
1223                 mthca_cleanup_uar_table(mdev);
1224                 mthca_close_hca(mdev);
1225                 mthca_cmd_cleanup(mdev);
1226
1227                 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1228                         pci_disable_msix(pdev);
1229                 if (mdev->mthca_flags & MTHCA_FLAG_MSI)
1230                         pci_disable_msi(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
1244         mdev = pci_get_drvdata(pdev);
1245         if (!mdev)
1246                 return -ENODEV;
1247         __mthca_remove_one(pdev);
1248         return __mthca_init_one(pdev, mdev->hca_type);
1249 }
1250
1251 static int __devinit mthca_init_one(struct pci_dev *pdev,
1252                                     const struct pci_device_id *id)
1253 {
1254         static int mthca_version_printed = 0;
1255         int ret;
1256
1257         mutex_lock(&mthca_device_mutex);
1258
1259         if (!mthca_version_printed) {
1260                 printk(KERN_INFO "%s", mthca_version);
1261                 ++mthca_version_printed;
1262         }
1263
1264         if (id->driver_data >= ARRAY_SIZE(mthca_hca_table)) {
1265                 printk(KERN_ERR PFX "%s has invalid driver data %lx\n",
1266                        pci_name(pdev), id->driver_data);
1267                 mutex_unlock(&mthca_device_mutex);
1268                 return -ENODEV;
1269         }
1270
1271         ret = __mthca_init_one(pdev, id->driver_data);
1272
1273         mutex_unlock(&mthca_device_mutex);
1274
1275         return ret;
1276 }
1277
1278 static void __devexit mthca_remove_one(struct pci_dev *pdev)
1279 {
1280         mutex_lock(&mthca_device_mutex);
1281         __mthca_remove_one(pdev);
1282         mutex_unlock(&mthca_device_mutex);
1283 }
1284
1285 static struct pci_device_id mthca_pci_table[] = {
1286         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR),
1287           .driver_data = TAVOR },
1288         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_TAVOR),
1289           .driver_data = TAVOR },
1290         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1291           .driver_data = ARBEL_COMPAT },
1292         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1293           .driver_data = ARBEL_COMPAT },
1294         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL),
1295           .driver_data = ARBEL_NATIVE },
1296         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL),
1297           .driver_data = ARBEL_NATIVE },
1298         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI),
1299           .driver_data = SINAI },
1300         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI),
1301           .driver_data = SINAI },
1302         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1303           .driver_data = SINAI },
1304         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1305           .driver_data = SINAI },
1306         { 0, }
1307 };
1308
1309 MODULE_DEVICE_TABLE(pci, mthca_pci_table);
1310
1311 static struct pci_driver mthca_driver = {
1312         .name           = DRV_NAME,
1313         .id_table       = mthca_pci_table,
1314         .probe          = mthca_init_one,
1315         .remove         = __devexit_p(mthca_remove_one)
1316 };
1317
1318 static void __init __mthca_check_profile_val(const char *name, int *pval,
1319                                              int pval_default)
1320 {
1321         /* value must be positive and power of 2 */
1322         int old_pval = *pval;
1323
1324         if (old_pval <= 0)
1325                 *pval = pval_default;
1326         else
1327                 *pval = roundup_pow_of_two(old_pval);
1328
1329         if (old_pval != *pval) {
1330                 printk(KERN_WARNING PFX "Invalid value %d for %s in module parameter.\n",
1331                        old_pval, name);
1332                 printk(KERN_WARNING PFX "Corrected %s to %d.\n", name, *pval);
1333         }
1334 }
1335
1336 #define mthca_check_profile_val(name, default)                          \
1337         __mthca_check_profile_val(#name, &hca_profile.name, default)
1338
1339 static void __init mthca_validate_profile(void)
1340 {
1341         mthca_check_profile_val(num_qp,            MTHCA_DEFAULT_NUM_QP);
1342         mthca_check_profile_val(rdb_per_qp,        MTHCA_DEFAULT_RDB_PER_QP);
1343         mthca_check_profile_val(num_cq,            MTHCA_DEFAULT_NUM_CQ);
1344         mthca_check_profile_val(num_mcg,           MTHCA_DEFAULT_NUM_MCG);
1345         mthca_check_profile_val(num_mpt,           MTHCA_DEFAULT_NUM_MPT);
1346         mthca_check_profile_val(num_mtt,           MTHCA_DEFAULT_NUM_MTT);
1347         mthca_check_profile_val(num_udav,          MTHCA_DEFAULT_NUM_UDAV);
1348         mthca_check_profile_val(fmr_reserved_mtts, MTHCA_DEFAULT_NUM_RESERVED_MTTS);
1349
1350         if (hca_profile.fmr_reserved_mtts >= hca_profile.num_mtt) {
1351                 printk(KERN_WARNING PFX "Invalid fmr_reserved_mtts module parameter %d.\n",
1352                        hca_profile.fmr_reserved_mtts);
1353                 printk(KERN_WARNING PFX "(Must be smaller than num_mtt %d)\n",
1354                        hca_profile.num_mtt);
1355                 hca_profile.fmr_reserved_mtts = hca_profile.num_mtt / 2;
1356                 printk(KERN_WARNING PFX "Corrected fmr_reserved_mtts to %d.\n",
1357                        hca_profile.fmr_reserved_mtts);
1358         }
1359 }
1360
1361 static int __init mthca_init(void)
1362 {
1363         int ret;
1364
1365         mthca_validate_profile();
1366
1367         ret = mthca_catas_init();
1368         if (ret)
1369                 return ret;
1370
1371         ret = pci_register_driver(&mthca_driver);
1372         if (ret < 0) {
1373                 mthca_catas_cleanup();
1374                 return ret;
1375         }
1376
1377         return 0;
1378 }
1379
1380 static void __exit mthca_cleanup(void)
1381 {
1382         pci_unregister_driver(&mthca_driver);
1383         mthca_catas_cleanup();
1384 }
1385
1386 module_init(mthca_init);
1387 module_exit(mthca_cleanup);