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   1 /*
   2  * Copyright (c) 2004, 2005 Topspin Communications.  All rights reserved.
   3  * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
   4  * Copyright (c) 2005 Mellanox Technologies. All rights reserved.
   5  *
   6  * This software is available to you under a choice of one of two
   7  * licenses.  You may choose to be licensed under the terms of the GNU
   8  * General Public License (GPL) Version 2, available from the file
   9  * COPYING in the main directory of this source tree, or the
  10  * OpenIB.org BSD license below:
  11  *
  12  *     Redistribution and use in source and binary forms, with or
  13  *     without modification, are permitted provided that the following
  14  *     conditions are met:
  15  *
  16  *      - Redistributions of source code must retain the above
  17  *        copyright notice, this list of conditions and the following
  18  *        disclaimer.
  19  *
  20  *      - Redistributions in binary form must reproduce the above
  21  *        copyright notice, this list of conditions and the following
  22  *        disclaimer in the documentation and/or other materials
  23  *        provided with the distribution.
  24  *
  25  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  26  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  27  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  28  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  29  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  30  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  31  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  32  * SOFTWARE.
  33  *
  34  * $Id: mthca_main.c 1396 2004-12-28 04:10:27Z roland $
  35  */
  36
  37 #include <linux/module.h>
  38 #include <linux/init.h>
  39 #include <linux/errno.h>
  40 #include <linux/pci.h>
  41 #include <linux/interrupt.h>
  42
  43 #include "mthca_dev.h"
  44 #include "mthca_config_reg.h"
  45 #include "mthca_cmd.h"
  46 #include "mthca_profile.h"
  47 #include "mthca_memfree.h"
  48
  49 MODULE_AUTHOR("Roland Dreier");
  50 MODULE_DESCRIPTION("Mellanox InfiniBand HCA low-level driver");
  51 MODULE_LICENSE("Dual BSD/GPL");
  52 MODULE_VERSION(DRV_VERSION);
  53
  54 #ifdef CONFIG_INFINIBAND_MTHCA_DEBUG
  55
  56 int mthca_debug_level = 0;
  57 module_param_named(debug_level, mthca_debug_level, int, 0644);
  58 MODULE_PARM_DESC(debug_level, "Enable debug tracing if > 0");
  59
  60 #endif /* CONFIG_INFINIBAND_MTHCA_DEBUG */
  61
  62 #ifdef CONFIG_PCI_MSI
  63
  64 static int msi_x = 1;
  65 module_param(msi_x, int, 0444);
  66 MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero");
  67
  68 #else /* CONFIG_PCI_MSI */
  69
  70 #define msi_x (0)
  71
  72 #endif /* CONFIG_PCI_MSI */
  73
  74 static int tune_pci = 0;
  75 module_param(tune_pci, int, 0444);
  76 MODULE_PARM_DESC(tune_pci, "increase PCI burst from the default set by BIOS if nonzero");
  77
  78 DEFINE_MUTEX(mthca_device_mutex);
  79
  80 #define MTHCA_DEFAULT_NUM_QP            (1 << 16)
  81 #define MTHCA_DEFAULT_RDB_PER_QP        (1 << 2)
  82 #define MTHCA_DEFAULT_NUM_CQ            (1 << 16)
  83 #define MTHCA_DEFAULT_NUM_MCG           (1 << 13)
  84 #define MTHCA_DEFAULT_NUM_MPT           (1 << 17)
  85 #define MTHCA_DEFAULT_NUM_MTT           (1 << 20)
  86 #define MTHCA_DEFAULT_NUM_UDAV          (1 << 15)
  87 #define MTHCA_DEFAULT_NUM_RESERVED_MTTS (1 << 18)
  88 #define MTHCA_DEFAULT_NUM_UARC_SIZE     (1 << 18)
  89
  90 static struct mthca_profile hca_profile = {
  91         .num_qp             = MTHCA_DEFAULT_NUM_QP,
  92         .rdb_per_qp         = MTHCA_DEFAULT_RDB_PER_QP,
  93         .num_cq             = MTHCA_DEFAULT_NUM_CQ,
  94         .num_mcg            = MTHCA_DEFAULT_NUM_MCG,
  95         .num_mpt            = MTHCA_DEFAULT_NUM_MPT,
  96         .num_mtt            = MTHCA_DEFAULT_NUM_MTT,
  97         .num_udav           = MTHCA_DEFAULT_NUM_UDAV,          /* Tavor only */
  98         .fmr_reserved_mtts  = MTHCA_DEFAULT_NUM_RESERVED_MTTS, /* Tavor only */
  99         .uarc_size          = MTHCA_DEFAULT_NUM_UARC_SIZE,     /* Arbel only */
 100 };
 101
 102 module_param_named(num_qp, hca_profile.num_qp, int, 0444);
 103 MODULE_PARM_DESC(num_qp, "maximum number of QPs per HCA");
 104
 105 module_param_named(rdb_per_qp, hca_profile.rdb_per_qp, int, 0444);
 106 MODULE_PARM_DESC(rdb_per_qp, "number of RDB buffers per QP");
 107
 108 module_param_named(num_cq, hca_profile.num_cq, int, 0444);
 109 MODULE_PARM_DESC(num_cq, "maximum number of CQs per HCA");
 110
 111 module_param_named(num_mcg, hca_profile.num_mcg, int, 0444);
 112 MODULE_PARM_DESC(num_mcg, "maximum number of multicast groups per HCA");
 113
 114 module_param_named(num_mpt, hca_profile.num_mpt, int, 0444);
 115 MODULE_PARM_DESC(num_mpt,
 116                 "maximum number of memory protection table entries per HCA");
 117
 118 module_param_named(num_mtt, hca_profile.num_mtt, int, 0444);
 119 MODULE_PARM_DESC(num_mtt,
 120                  "maximum number of memory translation table segments per HCA");
 121
 122 module_param_named(num_udav, hca_profile.num_udav, int, 0444);
 123 MODULE_PARM_DESC(num_udav, "maximum number of UD address vectors per HCA");
 124
 125 module_param_named(fmr_reserved_mtts, hca_profile.fmr_reserved_mtts, int, 0444);
 126 MODULE_PARM_DESC(fmr_reserved_mtts,
 127                  "number of memory translation table segments reserved for FMR");
 128
 129 static const char mthca_version[] __devinitdata =
 130         DRV_NAME ": Mellanox InfiniBand HCA driver v"
 131         DRV_VERSION " (" DRV_RELDATE ")\n";
 132
 133 static int mthca_tune_pci(struct mthca_dev *mdev)
 134 {
 135         if (!tune_pci)
 136                 return 0;
 137
 138         /* First try to max out Read Byte Count */
 139         if (pci_find_capability(mdev->pdev, PCI_CAP_ID_PCIX)) {
 140                 if (pcix_set_mmrbc(mdev->pdev, pcix_get_max_mmrbc(mdev->pdev))) {
 141                         mthca_err(mdev, "Couldn't set PCI-X max read count, "
 142                                 "aborting.\n");
 143                         return -ENODEV;
 144                 }
 145         } else if (!(mdev->mthca_flags & MTHCA_FLAG_PCIE))
 146                 mthca_info(mdev, "No PCI-X capability, not setting RBC.\n");
 147
 148         if (pci_find_capability(mdev->pdev, PCI_CAP_ID_EXP)) {
 149                 if (pcie_set_readrq(mdev->pdev, 4096)) {
 150                         mthca_err(mdev, "Couldn't write PCI Express read request, "
 151                                 "aborting.\n");
 152                         return -ENODEV;
 153                 }
 154         } else if (mdev->mthca_flags & MTHCA_FLAG_PCIE)
 155                 mthca_info(mdev, "No PCI Express capability, "
 156                            "not setting Max Read Request Size.\n");
 157
 158         return 0;
 159 }
 160
 161 static int mthca_dev_lim(struct mthca_dev *mdev, struct mthca_dev_lim *dev_lim)
 162 {
 163         int err;
 164         u8 status;
 165
 166         err = mthca_QUERY_DEV_LIM(mdev, dev_lim, &status);
 167         if (err) {
 168                 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
 169                 return err;
 170         }
 171         if (status) {
 172                 mthca_err(mdev, "QUERY_DEV_LIM returned status 0x%02x, "
 173                           "aborting.\n", status);
 174                 return -EINVAL;
 175         }
 176         if (dev_lim->min_page_sz > PAGE_SIZE) {
 177                 mthca_err(mdev, "HCA minimum page size of %d bigger than "
 178                           "kernel PAGE_SIZE of %ld, aborting.\n",
 179                           dev_lim->min_page_sz, PAGE_SIZE);
 180                 return -ENODEV;
 181         }
 182         if (dev_lim->num_ports > MTHCA_MAX_PORTS) {
 183                 mthca_err(mdev, "HCA has %d ports, but we only support %d, "
 184                           "aborting.\n",
 185                           dev_lim->num_ports, MTHCA_MAX_PORTS);
 186                 return -ENODEV;
 187         }
 188
 189         if (dev_lim->uar_size > pci_resource_len(mdev->pdev, 2)) {
 190                 mthca_err(mdev, "HCA reported UAR size of 0x%x bigger than "
 191                           "PCI resource 2 size of 0x%llx, aborting.\n",
 192                           dev_lim->uar_size,
 193                           (unsigned long long)pci_resource_len(mdev->pdev, 2));
 194                 return -ENODEV;
 195         }
 196
 197         mdev->limits.num_ports          = dev_lim->num_ports;
 198         mdev->limits.vl_cap             = dev_lim->max_vl;
 199         mdev->limits.mtu_cap            = dev_lim->max_mtu;
 200         mdev->limits.gid_table_len      = dev_lim->max_gids;
 201         mdev->limits.pkey_table_len     = dev_lim->max_pkeys;
 202         mdev->limits.local_ca_ack_delay = dev_lim->local_ca_ack_delay;
 203         mdev->limits.max_sg             = dev_lim->max_sg;
 204         mdev->limits.max_wqes           = dev_lim->max_qp_sz;
 205         mdev->limits.max_qp_init_rdma   = dev_lim->max_requester_per_qp;
 206         mdev->limits.reserved_qps       = dev_lim->reserved_qps;
 207         mdev->limits.max_srq_wqes       = dev_lim->max_srq_sz;
 208         mdev->limits.reserved_srqs      = dev_lim->reserved_srqs;
 209         mdev->limits.reserved_eecs      = dev_lim->reserved_eecs;
 210         mdev->limits.max_desc_sz        = dev_lim->max_desc_sz;
 211         mdev->limits.max_srq_sge        = mthca_max_srq_sge(mdev);
 212         /*
 213          * Subtract 1 from the limit because we need to allocate a
 214          * spare CQE so the HCA HW can tell the difference between an
 215          * empty CQ and a full CQ.
 216          */
 217         mdev->limits.max_cqes           = dev_lim->max_cq_sz - 1;
 218         mdev->limits.reserved_cqs       = dev_lim->reserved_cqs;
 219         mdev->limits.reserved_eqs       = dev_lim->reserved_eqs;
 220         mdev->limits.reserved_mtts      = dev_lim->reserved_mtts;
 221         mdev->limits.reserved_mrws      = dev_lim->reserved_mrws;
 222         mdev->limits.reserved_uars      = dev_lim->reserved_uars;
 223         mdev->limits.reserved_pds       = dev_lim->reserved_pds;
 224         mdev->limits.port_width_cap     = dev_lim->max_port_width;
 225         mdev->limits.page_size_cap      = ~(u32) (dev_lim->min_page_sz - 1);
 226         mdev->limits.flags              = dev_lim->flags;
 227         /*
 228          * For old FW that doesn't return static rate support, use a
 229          * value of 0x3 (only static rate values of 0 or 1 are handled),
 230          * except on Sinai, where even old FW can handle static rate
 231          * values of 2 and 3.
 232          */
 233         if (dev_lim->stat_rate_support)
 234                 mdev->limits.stat_rate_support = dev_lim->stat_rate_support;
 235         else if (mdev->mthca_flags & MTHCA_FLAG_SINAI_OPT)
 236                 mdev->limits.stat_rate_support = 0xf;
 237         else
 238                 mdev->limits.stat_rate_support = 0x3;
 239
 240         /* IB_DEVICE_RESIZE_MAX_WR not supported by driver.
 241            May be doable since hardware supports it for SRQ.
 242
 243            IB_DEVICE_N_NOTIFY_CQ is supported by hardware but not by driver.
 244
 245            IB_DEVICE_SRQ_RESIZE is supported by hardware but SRQ is not
 246            supported by driver. */
 247         mdev->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT |
 248                 IB_DEVICE_PORT_ACTIVE_EVENT |
 249                 IB_DEVICE_SYS_IMAGE_GUID |
 250                 IB_DEVICE_RC_RNR_NAK_GEN;
 251
 252         if (dev_lim->flags & DEV_LIM_FLAG_BAD_PKEY_CNTR)
 253                 mdev->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR;
 254
 255         if (dev_lim->flags & DEV_LIM_FLAG_BAD_QKEY_CNTR)
 256                 mdev->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR;
 257
 258         if (dev_lim->flags & DEV_LIM_FLAG_RAW_MULTI)
 259                 mdev->device_cap_flags |= IB_DEVICE_RAW_MULTI;
 260
 261         if (dev_lim->flags & DEV_LIM_FLAG_AUTO_PATH_MIG)
 262                 mdev->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG;
 263
 264         if (dev_lim->flags & DEV_LIM_FLAG_UD_AV_PORT_ENFORCE)
 265                 mdev->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE;
 266
 267         if (dev_lim->flags & DEV_LIM_FLAG_SRQ)
 268                 mdev->mthca_flags |= MTHCA_FLAG_SRQ;
 269
 270         return 0;
 271 }
 272
 273 static int mthca_init_tavor(struct mthca_dev *mdev)
 274 {
 275         u8 status;
 276         int err;
 277         struct mthca_dev_lim        dev_lim;
 278         struct mthca_profile        profile;
 279         struct mthca_init_hca_param init_hca;
 280
 281         err = mthca_SYS_EN(mdev, &status);
 282         if (err) {
 283                 mthca_err(mdev, "SYS_EN command failed, aborting.\n");
 284                 return err;
 285         }
 286         if (status) {
 287                 mthca_err(mdev, "SYS_EN returned status 0x%02x, "
 288                           "aborting.\n", status);
 289                 return -EINVAL;
 290         }
 291
 292         err = mthca_QUERY_FW(mdev, &status);
 293         if (err) {
 294                 mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
 295                 goto err_disable;
 296         }
 297         if (status) {
 298                 mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
 299                           "aborting.\n", status);
 300                 err = -EINVAL;
 301                 goto err_disable;
 302         }
 303         err = mthca_QUERY_DDR(mdev, &status);
 304         if (err) {
 305                 mthca_err(mdev, "QUERY_DDR command failed, aborting.\n");
 306                 goto err_disable;
 307         }
 308         if (status) {
 309                 mthca_err(mdev, "QUERY_DDR returned status 0x%02x, "
 310                           "aborting.\n", status);
 311                 err = -EINVAL;
 312                 goto err_disable;
 313         }
 314
 315         err = mthca_dev_lim(mdev, &dev_lim);
 316         if (err) {
 317                 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
 318                 goto err_disable;
 319         }
 320
 321         profile = hca_profile;
 322         profile.num_uar   = dev_lim.uar_size / PAGE_SIZE;
 323         profile.uarc_size = 0;
 324         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 325                 profile.num_srq = dev_lim.max_srqs;
 326
 327         err = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
 328         if (err < 0)
 329                 goto err_disable;
 330
 331         err = mthca_INIT_HCA(mdev, &init_hca, &status);
 332         if (err) {
 333                 mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
 334                 goto err_disable;
 335         }
 336         if (status) {
 337                 mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
 338                           "aborting.\n", status);
 339                 err = -EINVAL;
 340                 goto err_disable;
 341         }
 342
 343         return 0;
 344
 345 err_disable:
 346         mthca_SYS_DIS(mdev, &status);
 347
 348         return err;
 349 }
 350
 351 static int mthca_load_fw(struct mthca_dev *mdev)
 352 {
 353         u8 status;
 354         int err;
 355
 356         /* FIXME: use HCA-attached memory for FW if present */
 357
 358         mdev->fw.arbel.fw_icm =
 359                 mthca_alloc_icm(mdev, mdev->fw.arbel.fw_pages,
 360                                 GFP_HIGHUSER | __GFP_NOWARN, 0);
 361         if (!mdev->fw.arbel.fw_icm) {
 362                 mthca_err(mdev, "Couldn't allocate FW area, aborting.\n");
 363                 return -ENOMEM;
 364         }
 365
 366         err = mthca_MAP_FA(mdev, mdev->fw.arbel.fw_icm, &status);
 367         if (err) {
 368                 mthca_err(mdev, "MAP_FA command failed, aborting.\n");
 369                 goto err_free;
 370         }
 371         if (status) {
 372                 mthca_err(mdev, "MAP_FA returned status 0x%02x, aborting.\n", status);
 373                 err = -EINVAL;
 374                 goto err_free;
 375         }
 376         err = mthca_RUN_FW(mdev, &status);
 377         if (err) {
 378                 mthca_err(mdev, "RUN_FW command failed, aborting.\n");
 379                 goto err_unmap_fa;
 380         }
 381         if (status) {
 382                 mthca_err(mdev, "RUN_FW returned status 0x%02x, aborting.\n", status);
 383                 err = -EINVAL;
 384                 goto err_unmap_fa;
 385         }
 386
 387         return 0;
 388
 389 err_unmap_fa:
 390         mthca_UNMAP_FA(mdev, &status);
 391
 392 err_free:
 393         mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
 394         return err;
 395 }
 396
 397 static int mthca_init_icm(struct mthca_dev *mdev,
 398                           struct mthca_dev_lim *dev_lim,
 399                           struct mthca_init_hca_param *init_hca,
 400                           u64 icm_size)
 401 {
 402         u64 aux_pages;
 403         u8 status;
 404         int err;
 405
 406         err = mthca_SET_ICM_SIZE(mdev, icm_size, &aux_pages, &status);
 407         if (err) {
 408                 mthca_err(mdev, "SET_ICM_SIZE command failed, aborting.\n");
 409                 return err;
 410         }
 411         if (status) {
 412                 mthca_err(mdev, "SET_ICM_SIZE returned status 0x%02x, "
 413                           "aborting.\n", status);
 414                 return -EINVAL;
 415         }
 416
 417         mthca_dbg(mdev, "%lld KB of HCA context requires %lld KB aux memory.\n",
 418                   (unsigned long long) icm_size >> 10,
 419                   (unsigned long long) aux_pages << 2);
 420
 421         mdev->fw.arbel.aux_icm = mthca_alloc_icm(mdev, aux_pages,
 422                                                  GFP_HIGHUSER | __GFP_NOWARN, 0);
 423         if (!mdev->fw.arbel.aux_icm) {
 424                 mthca_err(mdev, "Couldn't allocate aux memory, aborting.\n");
 425                 return -ENOMEM;
 426         }
 427
 428         err = mthca_MAP_ICM_AUX(mdev, mdev->fw.arbel.aux_icm, &status);
 429         if (err) {
 430                 mthca_err(mdev, "MAP_ICM_AUX command failed, aborting.\n");
 431                 goto err_free_aux;
 432         }
 433         if (status) {
 434                 mthca_err(mdev, "MAP_ICM_AUX returned status 0x%02x, aborting.\n", status);
 435                 err = -EINVAL;
 436                 goto err_free_aux;
 437         }
 438
 439         err = mthca_map_eq_icm(mdev, init_hca->eqc_base);
 440         if (err) {
 441                 mthca_err(mdev, "Failed to map EQ context memory, aborting.\n");
 442                 goto err_unmap_aux;
 443         }
 444
 445         /* CPU writes to non-reserved MTTs, while HCA might DMA to reserved mtts */
 446         mdev->limits.reserved_mtts = ALIGN(mdev->limits.reserved_mtts * MTHCA_MTT_SEG_SIZE,
 447                                            dma_get_cache_alignment()) / MTHCA_MTT_SEG_SIZE;
 448
 449         mdev->mr_table.mtt_table = mthca_alloc_icm_table(mdev, init_hca->mtt_base,
 450                                                          MTHCA_MTT_SEG_SIZE,
 451                                                          mdev->limits.num_mtt_segs,
 452                                                          mdev->limits.reserved_mtts,
 453                                                          1, 0);
 454         if (!mdev->mr_table.mtt_table) {
 455                 mthca_err(mdev, "Failed to map MTT context memory, aborting.\n");
 456                 err = -ENOMEM;
 457                 goto err_unmap_eq;
 458         }
 459
 460         mdev->mr_table.mpt_table = mthca_alloc_icm_table(mdev, init_hca->mpt_base,
 461                                                          dev_lim->mpt_entry_sz,
 462                                                          mdev->limits.num_mpts,
 463                                                          mdev->limits.reserved_mrws,
 464                                                          1, 1);
 465         if (!mdev->mr_table.mpt_table) {
 466                 mthca_err(mdev, "Failed to map MPT context memory, aborting.\n");
 467                 err = -ENOMEM;
 468                 goto err_unmap_mtt;
 469         }
 470
 471         mdev->qp_table.qp_table = mthca_alloc_icm_table(mdev, init_hca->qpc_base,
 472                                                         dev_lim->qpc_entry_sz,
 473                                                         mdev->limits.num_qps,
 474                                                         mdev->limits.reserved_qps,
 475                                                         0, 0);
 476         if (!mdev->qp_table.qp_table) {
 477                 mthca_err(mdev, "Failed to map QP context memory, aborting.\n");
 478                 err = -ENOMEM;
 479                 goto err_unmap_mpt;
 480         }
 481
 482         mdev->qp_table.eqp_table = mthca_alloc_icm_table(mdev, init_hca->eqpc_base,
 483                                                          dev_lim->eqpc_entry_sz,
 484                                                          mdev->limits.num_qps,
 485                                                          mdev->limits.reserved_qps,
 486                                                          0, 0);
 487         if (!mdev->qp_table.eqp_table) {
 488                 mthca_err(mdev, "Failed to map EQP context memory, aborting.\n");
 489                 err = -ENOMEM;
 490                 goto err_unmap_qp;
 491         }
 492
 493         mdev->qp_table.rdb_table = mthca_alloc_icm_table(mdev, init_hca->rdb_base,
 494                                                          MTHCA_RDB_ENTRY_SIZE,
 495                                                          mdev->limits.num_qps <<
 496                                                          mdev->qp_table.rdb_shift, 0,
 497                                                          0, 0);
 498         if (!mdev->qp_table.rdb_table) {
 499                 mthca_err(mdev, "Failed to map RDB context memory, aborting\n");
 500                 err = -ENOMEM;
 501                 goto err_unmap_eqp;
 502         }
 503
 504        mdev->cq_table.table = mthca_alloc_icm_table(mdev, init_hca->cqc_base,
 505                                                     dev_lim->cqc_entry_sz,
 506                                                     mdev->limits.num_cqs,
 507                                                     mdev->limits.reserved_cqs,
 508                                                     0, 0);
 509         if (!mdev->cq_table.table) {
 510                 mthca_err(mdev, "Failed to map CQ context memory, aborting.\n");
 511                 err = -ENOMEM;
 512                 goto err_unmap_rdb;
 513         }
 514
 515         if (mdev->mthca_flags & MTHCA_FLAG_SRQ) {
 516                 mdev->srq_table.table =
 517                         mthca_alloc_icm_table(mdev, init_hca->srqc_base,
 518                                               dev_lim->srq_entry_sz,
 519                                               mdev->limits.num_srqs,
 520                                               mdev->limits.reserved_srqs,
 521                                               0, 0);
 522                 if (!mdev->srq_table.table) {
 523                         mthca_err(mdev, "Failed to map SRQ context memory, "
 524                                   "aborting.\n");
 525                         err = -ENOMEM;
 526                         goto err_unmap_cq;
 527                 }
 528         }
 529
 530         /*
 531          * It's not strictly required, but for simplicity just map the
 532          * whole multicast group table now.  The table isn't very big
 533          * and it's a lot easier than trying to track ref counts.
 534          */
 535         mdev->mcg_table.table = mthca_alloc_icm_table(mdev, init_hca->mc_base,
 536                                                       MTHCA_MGM_ENTRY_SIZE,
 537                                                       mdev->limits.num_mgms +
 538                                                       mdev->limits.num_amgms,
 539                                                       mdev->limits.num_mgms +
 540                                                       mdev->limits.num_amgms,
 541                                                       0, 0);
 542         if (!mdev->mcg_table.table) {
 543                 mthca_err(mdev, "Failed to map MCG context memory, aborting.\n");
 544                 err = -ENOMEM;
 545                 goto err_unmap_srq;
 546         }
 547
 548         return 0;
 549
 550 err_unmap_srq:
 551         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 552                 mthca_free_icm_table(mdev, mdev->srq_table.table);
 553
 554 err_unmap_cq:
 555         mthca_free_icm_table(mdev, mdev->cq_table.table);
 556
 557 err_unmap_rdb:
 558         mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
 559
 560 err_unmap_eqp:
 561         mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
 562
 563 err_unmap_qp:
 564         mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
 565
 566 err_unmap_mpt:
 567         mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
 568
 569 err_unmap_mtt:
 570         mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
 571
 572 err_unmap_eq:
 573         mthca_unmap_eq_icm(mdev);
 574
 575 err_unmap_aux:
 576         mthca_UNMAP_ICM_AUX(mdev, &status);
 577
 578 err_free_aux:
 579         mthca_free_icm(mdev, mdev->fw.arbel.aux_icm, 0);
 580
 581         return err;
 582 }
 583
 584 static void mthca_free_icms(struct mthca_dev *mdev)
 585 {
 586         u8 status;
 587
 588         mthca_free_icm_table(mdev, mdev->mcg_table.table);
 589         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 590                 mthca_free_icm_table(mdev, mdev->srq_table.table);
 591         mthca_free_icm_table(mdev, mdev->cq_table.table);
 592         mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
 593         mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
 594         mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
 595         mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
 596         mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
 597         mthca_unmap_eq_icm(mdev);
 598
 599         mthca_UNMAP_ICM_AUX(mdev, &status);
 600         mthca_free_icm(mdev, mdev->fw.arbel.aux_icm, 0);
 601 }
 602
 603 static int mthca_init_arbel(struct mthca_dev *mdev)
 604 {
 605         struct mthca_dev_lim        dev_lim;
 606         struct mthca_profile        profile;
 607         struct mthca_init_hca_param init_hca;
 608         u64 icm_size;
 609         u8 status;
 610         int err;
 611
 612         err = mthca_QUERY_FW(mdev, &status);
 613         if (err) {
 614                 mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
 615                 return err;
 616         }
 617         if (status) {
 618                 mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
 619                           "aborting.\n", status);
 620                 return -EINVAL;
 621         }
 622
 623         err = mthca_ENABLE_LAM(mdev, &status);
 624         if (err) {
 625                 mthca_err(mdev, "ENABLE_LAM command failed, aborting.\n");
 626                 return err;
 627         }
 628         if (status == MTHCA_CMD_STAT_LAM_NOT_PRE) {
 629                 mthca_dbg(mdev, "No HCA-attached memory (running in MemFree mode)\n");
 630                 mdev->mthca_flags |= MTHCA_FLAG_NO_LAM;
 631         } else if (status) {
 632                 mthca_err(mdev, "ENABLE_LAM returned status 0x%02x, "
 633                           "aborting.\n", status);
 634                 return -EINVAL;
 635         }
 636
 637         err = mthca_load_fw(mdev);
 638         if (err) {
 639                 mthca_err(mdev, "Failed to start FW, aborting.\n");
 640                 goto err_disable;
 641         }
 642
 643         err = mthca_dev_lim(mdev, &dev_lim);
 644         if (err) {
 645                 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
 646                 goto err_stop_fw;
 647         }
 648
 649         profile = hca_profile;
 650         profile.num_uar  = dev_lim.uar_size / PAGE_SIZE;
 651         profile.num_udav = 0;
 652         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 653                 profile.num_srq = dev_lim.max_srqs;
 654
 655         icm_size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
 656         if ((int) icm_size < 0) {
 657                 err = icm_size;
 658                 goto err_stop_fw;
 659         }
 660
 661         err = mthca_init_icm(mdev, &dev_lim, &init_hca, icm_size);
 662         if (err)
 663                 goto err_stop_fw;
 664
 665         err = mthca_INIT_HCA(mdev, &init_hca, &status);
 666         if (err) {
 667                 mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
 668                 goto err_free_icm;
 669         }
 670         if (status) {
 671                 mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
 672                           "aborting.\n", status);
 673                 err = -EINVAL;
 674                 goto err_free_icm;
 675         }
 676
 677         return 0;
 678
 679 err_free_icm:
 680         mthca_free_icms(mdev);
 681
 682 err_stop_fw:
 683         mthca_UNMAP_FA(mdev, &status);
 684         mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
 685
 686 err_disable:
 687         if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
 688                 mthca_DISABLE_LAM(mdev, &status);
 689
 690         return err;
 691 }
 692
 693 static void mthca_close_hca(struct mthca_dev *mdev)
 694 {
 695         u8 status;
 696
 697         mthca_CLOSE_HCA(mdev, 0, &status);
 698
 699         if (mthca_is_memfree(mdev)) {
 700                 mthca_free_icms(mdev);
 701
 702                 mthca_UNMAP_FA(mdev, &status);
 703                 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
 704
 705                 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
 706                         mthca_DISABLE_LAM(mdev, &status);
 707         } else
 708                 mthca_SYS_DIS(mdev, &status);
 709 }
 710
 711 static int mthca_init_hca(struct mthca_dev *mdev)
 712 {
 713         u8 status;
 714         int err;
 715         struct mthca_adapter adapter;
 716
 717         if (mthca_is_memfree(mdev))
 718                 err = mthca_init_arbel(mdev);
 719         else
 720                 err = mthca_init_tavor(mdev);
 721
 722         if (err)
 723                 return err;
 724
 725         err = mthca_QUERY_ADAPTER(mdev, &adapter, &status);
 726         if (err) {
 727                 mthca_err(mdev, "QUERY_ADAPTER command failed, aborting.\n");
 728                 goto err_close;
 729         }
 730         if (status) {
 731                 mthca_err(mdev, "QUERY_ADAPTER returned status 0x%02x, "
 732                           "aborting.\n", status);
 733                 err = -EINVAL;
 734                 goto err_close;
 735         }
 736
 737         mdev->eq_table.inta_pin = adapter.inta_pin;
 738         mdev->rev_id            = adapter.revision_id;
 739         memcpy(mdev->board_id, adapter.board_id, sizeof mdev->board_id);
 740
 741         return 0;
 742
 743 err_close:
 744         mthca_close_hca(mdev);
 745         return err;
 746 }
 747
 748 static int mthca_setup_hca(struct mthca_dev *dev)
 749 {
 750         int err;
 751         u8 status;
 752
 753         MTHCA_INIT_DOORBELL_LOCK(&dev->doorbell_lock);
 754
 755         err = mthca_init_uar_table(dev);
 756         if (err) {
 757                 mthca_err(dev, "Failed to initialize "
 758                           "user access region table, aborting.\n");
 759                 return err;
 760         }
 761
 762         err = mthca_uar_alloc(dev, &dev->driver_uar);
 763         if (err) {
 764                 mthca_err(dev, "Failed to allocate driver access region, "
 765                           "aborting.\n");
 766                 goto err_uar_table_free;
 767         }
 768
 769         dev->kar = ioremap(dev->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
 770         if (!dev->kar) {
 771                 mthca_err(dev, "Couldn't map kernel access region, "
 772                           "aborting.\n");
 773                 err = -ENOMEM;
 774                 goto err_uar_free;
 775         }
 776
 777         err = mthca_init_pd_table(dev);
 778         if (err) {
 779                 mthca_err(dev, "Failed to initialize "
 780                           "protection domain table, aborting.\n");
 781                 goto err_kar_unmap;
 782         }
 783
 784         err = mthca_init_mr_table(dev);
 785         if (err) {
 786                 mthca_err(dev, "Failed to initialize "
 787                           "memory region table, aborting.\n");
 788                 goto err_pd_table_free;
 789         }
 790
 791         err = mthca_pd_alloc(dev, 1, &dev->driver_pd);
 792         if (err) {
 793                 mthca_err(dev, "Failed to create driver PD, "
 794                           "aborting.\n");
 795                 goto err_mr_table_free;
 796         }
 797
 798         err = mthca_init_eq_table(dev);
 799         if (err) {
 800                 mthca_err(dev, "Failed to initialize "
 801                           "event queue table, aborting.\n");
 802                 goto err_pd_free;
 803         }
 804
 805         err = mthca_cmd_use_events(dev);
 806         if (err) {
 807                 mthca_err(dev, "Failed to switch to event-driven "
 808                           "firmware commands, aborting.\n");
 809                 goto err_eq_table_free;
 810         }
 811
 812         err = mthca_NOP(dev, &status);
 813         if (err || status) {
 814                 if (dev->mthca_flags & MTHCA_FLAG_MSI_X) {
 815                         mthca_warn(dev, "NOP command failed to generate interrupt "
 816                                    "(IRQ %d).\n",
 817                                    dev->eq_table.eq[MTHCA_EQ_CMD].msi_x_vector);
 818                         mthca_warn(dev, "Trying again with MSI-X disabled.\n");
 819                 } else {
 820                         mthca_err(dev, "NOP command failed to generate interrupt "
 821                                   "(IRQ %d), aborting.\n",
 822                                   dev->pdev->irq);
 823                         mthca_err(dev, "BIOS or ACPI interrupt routing problem?\n");
 824                 }
 825
 826                 goto err_cmd_poll;
 827         }
 828
 829         mthca_dbg(dev, "NOP command IRQ test passed\n");
 830
 831         err = mthca_init_cq_table(dev);
 832         if (err) {
 833                 mthca_err(dev, "Failed to initialize "
 834                           "completion queue table, aborting.\n");
 835                 goto err_cmd_poll;
 836         }
 837
 838         err = mthca_init_srq_table(dev);
 839         if (err) {
 840                 mthca_err(dev, "Failed to initialize "
 841                           "shared receive queue table, aborting.\n");
 842                 goto err_cq_table_free;
 843         }
 844
 845         err = mthca_init_qp_table(dev);
 846         if (err) {
 847                 mthca_err(dev, "Failed to initialize "
 848                           "queue pair table, aborting.\n");
 849                 goto err_srq_table_free;
 850         }
 851
 852         err = mthca_init_av_table(dev);
 853         if (err) {
 854                 mthca_err(dev, "Failed to initialize "
 855                           "address vector table, aborting.\n");
 856                 goto err_qp_table_free;
 857         }
 858
 859         err = mthca_init_mcg_table(dev);
 860         if (err) {
 861                 mthca_err(dev, "Failed to initialize "
 862                           "multicast group table, aborting.\n");
 863                 goto err_av_table_free;
 864         }
 865
 866         return 0;
 867
 868 err_av_table_free:
 869         mthca_cleanup_av_table(dev);
 870
 871 err_qp_table_free:
 872         mthca_cleanup_qp_table(dev);
 873
 874 err_srq_table_free:
 875         mthca_cleanup_srq_table(dev);
 876
 877 err_cq_table_free:
 878         mthca_cleanup_cq_table(dev);
 879
 880 err_cmd_poll:
 881         mthca_cmd_use_polling(dev);
 882
 883 err_eq_table_free:
 884         mthca_cleanup_eq_table(dev);
 885
 886 err_pd_free:
 887         mthca_pd_free(dev, &dev->driver_pd);
 888
 889 err_mr_table_free:
 890         mthca_cleanup_mr_table(dev);
 891
 892 err_pd_table_free:
 893         mthca_cleanup_pd_table(dev);
 894
 895 err_kar_unmap:
 896         iounmap(dev->kar);
 897
 898 err_uar_free:
 899         mthca_uar_free(dev, &dev->driver_uar);
 900
 901 err_uar_table_free:
 902         mthca_cleanup_uar_table(dev);
 903         return err;
 904 }
 905
 906 static int mthca_request_regions(struct pci_dev *pdev, int ddr_hidden)
 907 {
 908         int err;
 909
 910         /*
 911          * We can't just use pci_request_regions() because the MSI-X
 912          * table is right in the middle of the first BAR.  If we did
 913          * pci_request_region and grab all of the first BAR, then
 914          * setting up MSI-X would fail, since the PCI core wants to do
 915          * request_mem_region on the MSI-X vector table.
 916          *
 917          * So just request what we need right now, and request any
 918          * other regions we need when setting up EQs.
 919          */
 920         if (!request_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
 921                                 MTHCA_HCR_SIZE, DRV_NAME))
 922                 return -EBUSY;
 923
 924         err = pci_request_region(pdev, 2, DRV_NAME);
 925         if (err)
 926                 goto err_bar2_failed;
 927
 928         if (!ddr_hidden) {
 929                 err = pci_request_region(pdev, 4, DRV_NAME);
 930                 if (err)
 931                         goto err_bar4_failed;
 932         }
 933
 934         return 0;
 935
 936 err_bar4_failed:
 937         pci_release_region(pdev, 2);
 938
 939 err_bar2_failed:
 940         release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
 941                            MTHCA_HCR_SIZE);
 942
 943         return err;
 944 }
 945
 946 static void mthca_release_regions(struct pci_dev *pdev,
 947                                   int ddr_hidden)
 948 {
 949         if (!ddr_hidden)
 950                 pci_release_region(pdev, 4);
 951
 952         pci_release_region(pdev, 2);
 953
 954         release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
 955                            MTHCA_HCR_SIZE);
 956 }
 957
 958 static int mthca_enable_msi_x(struct mthca_dev *mdev)
 959 {
 960         struct msix_entry entries[3];
 961         int err;
 962
 963         entries[0].entry = 0;
 964         entries[1].entry = 1;
 965         entries[2].entry = 2;
 966
 967         err = pci_enable_msix(mdev->pdev, entries, ARRAY_SIZE(entries));
 968         if (err) {
 969                 if (err > 0)
 970                         mthca_info(mdev, "Only %d MSI-X vectors available, "
 971                                    "not using MSI-X\n", err);
 972                 return err;
 973         }
 974
 975         mdev->eq_table.eq[MTHCA_EQ_COMP ].msi_x_vector = entries[0].vector;
 976         mdev->eq_table.eq[MTHCA_EQ_ASYNC].msi_x_vector = entries[1].vector;
 977         mdev->eq_table.eq[MTHCA_EQ_CMD  ].msi_x_vector = entries[2].vector;
 978
 979         return 0;
 980 }
 981
 982 /* Types of supported HCA */
 983 enum {
 984         TAVOR,                  /* MT23108                        */
 985         ARBEL_COMPAT,           /* MT25208 in Tavor compat mode   */
 986         ARBEL_NATIVE,           /* MT25208 with extended features */
 987         SINAI                   /* MT25204 */
 988 };
 989
 990 #define MTHCA_FW_VER(major, minor, subminor) \
 991         (((u64) (major) << 32) | ((u64) (minor) << 16) | (u64) (subminor))
 992
 993 static struct {
 994         u64 latest_fw;
 995         u32 flags;
 996 } mthca_hca_table[] = {
 997         [TAVOR]        = { .latest_fw = MTHCA_FW_VER(3, 5, 0),
 998                            .flags     = 0 },
 999         [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 8, 200),
1000                            .flags     = MTHCA_FLAG_PCIE },
1001         [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 3, 0),
1002                            .flags     = MTHCA_FLAG_MEMFREE |
1003                                         MTHCA_FLAG_PCIE },
1004         [SINAI]        = { .latest_fw = MTHCA_FW_VER(1, 2, 0),
1005                            .flags     = MTHCA_FLAG_MEMFREE |
1006                                         MTHCA_FLAG_PCIE    |
1007                                         MTHCA_FLAG_SINAI_OPT }
1008 };
1009
1010 static int __mthca_init_one(struct pci_dev *pdev, int hca_type)
1011 {
1012         int ddr_hidden = 0;
1013         int err;
1014         struct mthca_dev *mdev;
1015
1016         printk(KERN_INFO PFX "Initializing %s\n",
1017                pci_name(pdev));
1018
1019         err = pci_enable_device(pdev);
1020         if (err) {
1021                 dev_err(&pdev->dev, "Cannot enable PCI device, "
1022                         "aborting.\n");
1023                 return err;
1024         }
1025
1026         /*
1027          * Check for BARs.  We expect 0: 1MB, 2: 8MB, 4: DDR (may not
1028          * be present)
1029          */
1030         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) ||
1031             pci_resource_len(pdev, 0) != 1 << 20) {
1032                 dev_err(&pdev->dev, "Missing DCS, aborting.\n");
1033                 err = -ENODEV;
1034                 goto err_disable_pdev;
1035         }
1036         if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
1037                 dev_err(&pdev->dev, "Missing UAR, aborting.\n");
1038                 err = -ENODEV;
1039                 goto err_disable_pdev;
1040         }
1041         if (!(pci_resource_flags(pdev, 4) & IORESOURCE_MEM))
1042                 ddr_hidden = 1;
1043
1044         err = mthca_request_regions(pdev, ddr_hidden);
1045         if (err) {
1046                 dev_err(&pdev->dev, "Cannot obtain PCI resources, "
1047                         "aborting.\n");
1048                 goto err_disable_pdev;
1049         }
1050
1051         pci_set_master(pdev);
1052
1053         err = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
1054         if (err) {
1055                 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n");
1056                 err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
1057                 if (err) {
1058                         dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n");
1059                         goto err_free_res;
1060                 }
1061         }
1062         err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
1063         if (err) {
1064                 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit "
1065                          "consistent PCI DMA mask.\n");
1066                 err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
1067                 if (err) {
1068                         dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
1069                                 "aborting.\n");
1070                         goto err_free_res;
1071                 }
1072         }
1073
1074         mdev = (struct mthca_dev *) ib_alloc_device(sizeof *mdev);
1075         if (!mdev) {
1076                 dev_err(&pdev->dev, "Device struct alloc failed, "
1077                         "aborting.\n");
1078                 err = -ENOMEM;
1079                 goto err_free_res;
1080         }
1081
1082         mdev->pdev = pdev;
1083
1084         mdev->mthca_flags = mthca_hca_table[hca_type].flags;
1085         if (ddr_hidden)
1086                 mdev->mthca_flags |= MTHCA_FLAG_DDR_HIDDEN;
1087
1088         /*
1089          * Now reset the HCA before we touch the PCI capabilities or
1090          * attempt a firmware command, since a boot ROM may have left
1091          * the HCA in an undefined state.
1092          */
1093         err = mthca_reset(mdev);
1094         if (err) {
1095                 mthca_err(mdev, "Failed to reset HCA, aborting.\n");
1096                 goto err_free_dev;
1097         }
1098
1099         if (mthca_cmd_init(mdev)) {
1100                 mthca_err(mdev, "Failed to init command interface, aborting.\n");
1101                 goto err_free_dev;
1102         }
1103
1104         err = mthca_tune_pci(mdev);
1105         if (err)
1106                 goto err_cmd;
1107
1108         err = mthca_init_hca(mdev);
1109         if (err)
1110                 goto err_cmd;
1111
1112         if (mdev->fw_ver < mthca_hca_table[hca_type].latest_fw) {
1113                 mthca_warn(mdev, "HCA FW version %d.%d.%03d is old (%d.%d.%03d is current).\n",
1114                            (int) (mdev->fw_ver >> 32), (int) (mdev->fw_ver >> 16) & 0xffff,
1115                            (int) (mdev->fw_ver & 0xffff),
1116                            (int) (mthca_hca_table[hca_type].latest_fw >> 32),
1117                            (int) (mthca_hca_table[hca_type].latest_fw >> 16) & 0xffff,
1118                            (int) (mthca_hca_table[hca_type].latest_fw & 0xffff));
1119                 mthca_warn(mdev, "If you have problems, try updating your HCA FW.\n");
1120         }
1121
1122         if (msi_x && !mthca_enable_msi_x(mdev))
1123                 mdev->mthca_flags |= MTHCA_FLAG_MSI_X;
1124
1125         err = mthca_setup_hca(mdev);
1126         if (err == -EBUSY && (mdev->mthca_flags & MTHCA_FLAG_MSI_X)) {
1127                 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1128                         pci_disable_msix(pdev);
1129                 mdev->mthca_flags &= ~MTHCA_FLAG_MSI_X;
1130
1131                 err = mthca_setup_hca(mdev);
1132         }
1133
1134         if (err)
1135                 goto err_close;
1136
1137         err = mthca_register_device(mdev);
1138         if (err)
1139                 goto err_cleanup;
1140
1141         err = mthca_create_agents(mdev);
1142         if (err)
1143                 goto err_unregister;
1144
1145         pci_set_drvdata(pdev, mdev);
1146         mdev->hca_type = hca_type;
1147
1148         return 0;
1149
1150 err_unregister:
1151         mthca_unregister_device(mdev);
1152
1153 err_cleanup:
1154         mthca_cleanup_mcg_table(mdev);
1155         mthca_cleanup_av_table(mdev);
1156         mthca_cleanup_qp_table(mdev);
1157         mthca_cleanup_srq_table(mdev);
1158         mthca_cleanup_cq_table(mdev);
1159         mthca_cmd_use_polling(mdev);
1160         mthca_cleanup_eq_table(mdev);
1161
1162         mthca_pd_free(mdev, &mdev->driver_pd);
1163
1164         mthca_cleanup_mr_table(mdev);
1165         mthca_cleanup_pd_table(mdev);
1166         mthca_cleanup_uar_table(mdev);
1167
1168 err_close:
1169         if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1170                 pci_disable_msix(pdev);
1171
1172         mthca_close_hca(mdev);
1173
1174 err_cmd:
1175         mthca_cmd_cleanup(mdev);
1176
1177 err_free_dev:
1178         ib_dealloc_device(&mdev->ib_dev);
1179
1180 err_free_res:
1181         mthca_release_regions(pdev, ddr_hidden);
1182
1183 err_disable_pdev:
1184         pci_disable_device(pdev);
1185         pci_set_drvdata(pdev, NULL);
1186         return err;
1187 }
1188
1189 static void __mthca_remove_one(struct pci_dev *pdev)
1190 {
1191         struct mthca_dev *mdev = pci_get_drvdata(pdev);
1192         u8 status;
1193         int p;
1194
1195         if (mdev) {
1196                 mthca_free_agents(mdev);
1197                 mthca_unregister_device(mdev);
1198
1199                 for (p = 1; p <= mdev->limits.num_ports; ++p)
1200                         mthca_CLOSE_IB(mdev, p, &status);
1201
1202                 mthca_cleanup_mcg_table(mdev);
1203                 mthca_cleanup_av_table(mdev);
1204                 mthca_cleanup_qp_table(mdev);
1205                 mthca_cleanup_srq_table(mdev);
1206                 mthca_cleanup_cq_table(mdev);
1207                 mthca_cmd_use_polling(mdev);
1208                 mthca_cleanup_eq_table(mdev);
1209
1210                 mthca_pd_free(mdev, &mdev->driver_pd);
1211
1212                 mthca_cleanup_mr_table(mdev);
1213                 mthca_cleanup_pd_table(mdev);
1214
1215                 iounmap(mdev->kar);
1216                 mthca_uar_free(mdev, &mdev->driver_uar);
1217                 mthca_cleanup_uar_table(mdev);
1218                 mthca_close_hca(mdev);
1219                 mthca_cmd_cleanup(mdev);
1220
1221                 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1222                         pci_disable_msix(pdev);
1223
1224                 ib_dealloc_device(&mdev->ib_dev);
1225                 mthca_release_regions(pdev, mdev->mthca_flags &
1226                                       MTHCA_FLAG_DDR_HIDDEN);
1227                 pci_disable_device(pdev);
1228                 pci_set_drvdata(pdev, NULL);
1229         }
1230 }
1231
1232 int __mthca_restart_one(struct pci_dev *pdev)
1233 {
1234         struct mthca_dev *mdev;
1235         int hca_type;
1236
1237         mdev = pci_get_drvdata(pdev);
1238         if (!mdev)
1239                 return -ENODEV;
1240         hca_type = mdev->hca_type;
1241         __mthca_remove_one(pdev);
1242         return __mthca_init_one(pdev, hca_type);
1243 }
1244
1245 static int __devinit mthca_init_one(struct pci_dev *pdev,
1246                                     const struct pci_device_id *id)
1247 {
1248         static int mthca_version_printed = 0;
1249         int ret;
1250
1251         mutex_lock(&mthca_device_mutex);
1252
1253         if (!mthca_version_printed) {
1254                 printk(KERN_INFO "%s", mthca_version);
1255                 ++mthca_version_printed;
1256         }
1257
1258         if (id->driver_data >= ARRAY_SIZE(mthca_hca_table)) {
1259                 printk(KERN_ERR PFX "%s has invalid driver data %lx\n",
1260                        pci_name(pdev), id->driver_data);
1261                 mutex_unlock(&mthca_device_mutex);
1262                 return -ENODEV;
1263         }
1264
1265         ret = __mthca_init_one(pdev, id->driver_data);
1266
1267         mutex_unlock(&mthca_device_mutex);
1268
1269         return ret;
1270 }
1271
1272 static void __devexit mthca_remove_one(struct pci_dev *pdev)
1273 {
1274         mutex_lock(&mthca_device_mutex);
1275         __mthca_remove_one(pdev);
1276         mutex_unlock(&mthca_device_mutex);
1277 }
1278
1279 static struct pci_device_id mthca_pci_table[] = {
1280         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR),
1281           .driver_data = TAVOR },
1282         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_TAVOR),
1283           .driver_data = TAVOR },
1284         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1285           .driver_data = ARBEL_COMPAT },
1286         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1287           .driver_data = ARBEL_COMPAT },
1288         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL),
1289           .driver_data = ARBEL_NATIVE },
1290         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL),
1291           .driver_data = ARBEL_NATIVE },
1292         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI),
1293           .driver_data = SINAI },
1294         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI),
1295           .driver_data = SINAI },
1296         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1297           .driver_data = SINAI },
1298         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1299           .driver_data = SINAI },
1300         { 0, }
1301 };
1302
1303 MODULE_DEVICE_TABLE(pci, mthca_pci_table);
1304
1305 static struct pci_driver mthca_driver = {
1306         .name           = DRV_NAME,
1307         .id_table       = mthca_pci_table,
1308         .probe          = mthca_init_one,
1309         .remove         = __devexit_p(mthca_remove_one)
1310 };
1311
1312 static void __init __mthca_check_profile_val(const char *name, int *pval,
1313                                              int pval_default)
1314 {
1315         /* value must be positive and power of 2 */
1316         int old_pval = *pval;
1317
1318         if (old_pval <= 0)
1319                 *pval = pval_default;
1320         else
1321                 *pval = roundup_pow_of_two(old_pval);
1322
1323         if (old_pval != *pval) {
1324                 printk(KERN_WARNING PFX "Invalid value %d for %s in module parameter.\n",
1325                        old_pval, name);
1326                 printk(KERN_WARNING PFX "Corrected %s to %d.\n", name, *pval);
1327         }
1328 }
1329
1330 #define mthca_check_profile_val(name, default)                          \
1331         __mthca_check_profile_val(#name, &hca_profile.name, default)
1332
1333 static void __init mthca_validate_profile(void)
1334 {
1335         mthca_check_profile_val(num_qp,            MTHCA_DEFAULT_NUM_QP);
1336         mthca_check_profile_val(rdb_per_qp,        MTHCA_DEFAULT_RDB_PER_QP);
1337         mthca_check_profile_val(num_cq,            MTHCA_DEFAULT_NUM_CQ);
1338         mthca_check_profile_val(num_mcg,           MTHCA_DEFAULT_NUM_MCG);
1339         mthca_check_profile_val(num_mpt,           MTHCA_DEFAULT_NUM_MPT);
1340         mthca_check_profile_val(num_mtt,           MTHCA_DEFAULT_NUM_MTT);
1341         mthca_check_profile_val(num_udav,          MTHCA_DEFAULT_NUM_UDAV);
1342         mthca_check_profile_val(fmr_reserved_mtts, MTHCA_DEFAULT_NUM_RESERVED_MTTS);
1343
1344         if (hca_profile.fmr_reserved_mtts >= hca_profile.num_mtt) {
1345                 printk(KERN_WARNING PFX "Invalid fmr_reserved_mtts module parameter %d.\n",
1346                        hca_profile.fmr_reserved_mtts);
1347                 printk(KERN_WARNING PFX "(Must be smaller than num_mtt %d)\n",
1348                        hca_profile.num_mtt);
1349                 hca_profile.fmr_reserved_mtts = hca_profile.num_mtt / 2;
1350                 printk(KERN_WARNING PFX "Corrected fmr_reserved_mtts to %d.\n",
1351                        hca_profile.fmr_reserved_mtts);
1352         }
1353 }
1354
1355 static int __init mthca_init(void)
1356 {
1357         int ret;
1358
1359         mthca_validate_profile();
1360
1361         ret = mthca_catas_init();
1362         if (ret)
1363                 return ret;
1364
1365         ret = pci_register_driver(&mthca_driver);
1366         if (ret < 0) {
1367                 mthca_catas_cleanup();
1368                 return ret;
1369         }
1370
1371         return 0;
1372 }
1373
1374 static void __exit mthca_cleanup(void)
1375 {
1376         pci_unregister_driver(&mthca_driver);
1377         mthca_catas_cleanup();
1378 }
1379
1380 module_init(mthca_init);
1381 module_exit(mthca_cleanup);