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   1 /*
   2  * Copyright (c) 2004, 2005 Topspin Communications.  All rights reserved.
   3  * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
   4  * Copyright (c) 2005 Mellanox Technologies. All rights reserved.
   5  *
   6  * This software is available to you under a choice of one of two
   7  * licenses.  You may choose to be licensed under the terms of the GNU
   8  * General Public License (GPL) Version 2, available from the file
   9  * COPYING in the main directory of this source tree, or the
  10  * OpenIB.org BSD license below:
  11  *
  12  *     Redistribution and use in source and binary forms, with or
  13  *     without modification, are permitted provided that the following
  14  *     conditions are met:
  15  *
  16  *      - Redistributions of source code must retain the above
  17  *        copyright notice, this list of conditions and the following
  18  *        disclaimer.
  19  *
  20  *      - Redistributions in binary form must reproduce the above
  21  *        copyright notice, this list of conditions and the following
  22  *        disclaimer in the documentation and/or other materials
  23  *        provided with the distribution.
  24  *
  25  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  26  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  27  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  28  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  29  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  30  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  31  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  32  * SOFTWARE.
  33  *
  34  * $Id: mthca_main.c 1396 2004-12-28 04:10:27Z roland $
  35  */
  36
  37 #include <linux/module.h>
  38 #include <linux/init.h>
  39 #include <linux/errno.h>
  40 #include <linux/pci.h>
  41 #include <linux/interrupt.h>
  42
  43 #include "mthca_dev.h"
  44 #include "mthca_config_reg.h"
  45 #include "mthca_cmd.h"
  46 #include "mthca_profile.h"
  47 #include "mthca_memfree.h"
  48
  49 MODULE_AUTHOR("Roland Dreier");
  50 MODULE_DESCRIPTION("Mellanox InfiniBand HCA low-level driver");
  51 MODULE_LICENSE("Dual BSD/GPL");
  52 MODULE_VERSION(DRV_VERSION);
  53
  54 #ifdef CONFIG_INFINIBAND_MTHCA_DEBUG
  55
  56 int mthca_debug_level = 0;
  57 module_param_named(debug_level, mthca_debug_level, int, 0644);
  58 MODULE_PARM_DESC(debug_level, "Enable debug tracing if > 0");
  59
  60 #endif /* CONFIG_INFINIBAND_MTHCA_DEBUG */
  61
  62 #ifdef CONFIG_PCI_MSI
  63
  64 static int msi_x = 1;
  65 module_param(msi_x, int, 0444);
  66 MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero");
  67
  68 #else /* CONFIG_PCI_MSI */
  69
  70 #define msi_x (0)
  71
  72 #endif /* CONFIG_PCI_MSI */
  73
  74 static int tune_pci = 0;
  75 module_param(tune_pci, int, 0444);
  76 MODULE_PARM_DESC(tune_pci, "increase PCI burst from the default set by BIOS if nonzero");
  77
  78 DEFINE_MUTEX(mthca_device_mutex);
  79
  80 #define MTHCA_DEFAULT_NUM_QP            (1 << 16)
  81 #define MTHCA_DEFAULT_RDB_PER_QP        (1 << 2)
  82 #define MTHCA_DEFAULT_NUM_CQ            (1 << 16)
  83 #define MTHCA_DEFAULT_NUM_MCG           (1 << 13)
  84 #define MTHCA_DEFAULT_NUM_MPT           (1 << 17)
  85 #define MTHCA_DEFAULT_NUM_MTT           (1 << 20)
  86 #define MTHCA_DEFAULT_NUM_UDAV          (1 << 15)
  87 #define MTHCA_DEFAULT_NUM_RESERVED_MTTS (1 << 18)
  88 #define MTHCA_DEFAULT_NUM_UARC_SIZE     (1 << 18)
  89
  90 static struct mthca_profile hca_profile = {
  91         .num_qp             = MTHCA_DEFAULT_NUM_QP,
  92         .rdb_per_qp         = MTHCA_DEFAULT_RDB_PER_QP,
  93         .num_cq             = MTHCA_DEFAULT_NUM_CQ,
  94         .num_mcg            = MTHCA_DEFAULT_NUM_MCG,
  95         .num_mpt            = MTHCA_DEFAULT_NUM_MPT,
  96         .num_mtt            = MTHCA_DEFAULT_NUM_MTT,
  97         .num_udav           = MTHCA_DEFAULT_NUM_UDAV,          /* Tavor only */
  98         .fmr_reserved_mtts  = MTHCA_DEFAULT_NUM_RESERVED_MTTS, /* Tavor only */
  99         .uarc_size          = MTHCA_DEFAULT_NUM_UARC_SIZE,     /* Arbel only */
 100 };
 101
 102 module_param_named(num_qp, hca_profile.num_qp, int, 0444);
 103 MODULE_PARM_DESC(num_qp, "maximum number of QPs per HCA");
 104
 105 module_param_named(rdb_per_qp, hca_profile.rdb_per_qp, int, 0444);
 106 MODULE_PARM_DESC(rdb_per_qp, "number of RDB buffers per QP");
 107
 108 module_param_named(num_cq, hca_profile.num_cq, int, 0444);
 109 MODULE_PARM_DESC(num_cq, "maximum number of CQs per HCA");
 110
 111 module_param_named(num_mcg, hca_profile.num_mcg, int, 0444);
 112 MODULE_PARM_DESC(num_mcg, "maximum number of multicast groups per HCA");
 113
 114 module_param_named(num_mpt, hca_profile.num_mpt, int, 0444);
 115 MODULE_PARM_DESC(num_mpt,
 116                 "maximum number of memory protection table entries per HCA");
 117
 118 module_param_named(num_mtt, hca_profile.num_mtt, int, 0444);
 119 MODULE_PARM_DESC(num_mtt,
 120                  "maximum number of memory translation table segments per HCA");
 121
 122 module_param_named(num_udav, hca_profile.num_udav, int, 0444);
 123 MODULE_PARM_DESC(num_udav, "maximum number of UD address vectors per HCA");
 124
 125 module_param_named(fmr_reserved_mtts, hca_profile.fmr_reserved_mtts, int, 0444);
 126 MODULE_PARM_DESC(fmr_reserved_mtts,
 127                  "number of memory translation table segments reserved for FMR");
 128
 129 static char mthca_version[] __devinitdata =
 130         DRV_NAME ": Mellanox InfiniBand HCA driver v"
 131         DRV_VERSION " (" DRV_RELDATE ")\n";
 132
 133 static int mthca_tune_pci(struct mthca_dev *mdev)
 134 {
 135         if (!tune_pci)
 136                 return 0;
 137
 138         /* First try to max out Read Byte Count */
 139         if (pci_find_capability(mdev->pdev, PCI_CAP_ID_PCIX)) {
 140                 if (pcix_set_mmrbc(mdev->pdev, pcix_get_max_mmrbc(mdev->pdev))) {
 141                         mthca_err(mdev, "Couldn't set PCI-X max read count, "
 142                                 "aborting.\n");
 143                         return -ENODEV;
 144                 }
 145         } else if (!(mdev->mthca_flags & MTHCA_FLAG_PCIE))
 146                 mthca_info(mdev, "No PCI-X capability, not setting RBC.\n");
 147
 148         if (pci_find_capability(mdev->pdev, PCI_CAP_ID_EXP)) {
 149                 if (pcie_set_readrq(mdev->pdev, 4096)) {
 150                         mthca_err(mdev, "Couldn't write PCI Express read request, "
 151                                 "aborting.\n");
 152                         return -ENODEV;
 153                 }
 154         } else if (mdev->mthca_flags & MTHCA_FLAG_PCIE)
 155                 mthca_info(mdev, "No PCI Express capability, "
 156                            "not setting Max Read Request Size.\n");
 157
 158         return 0;
 159 }
 160
 161 static int mthca_dev_lim(struct mthca_dev *mdev, struct mthca_dev_lim *dev_lim)
 162 {
 163         int err;
 164         u8 status;
 165
 166         err = mthca_QUERY_DEV_LIM(mdev, dev_lim, &status);
 167         if (err) {
 168                 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
 169                 return err;
 170         }
 171         if (status) {
 172                 mthca_err(mdev, "QUERY_DEV_LIM returned status 0x%02x, "
 173                           "aborting.\n", status);
 174                 return -EINVAL;
 175         }
 176         if (dev_lim->min_page_sz > PAGE_SIZE) {
 177                 mthca_err(mdev, "HCA minimum page size of %d bigger than "
 178                           "kernel PAGE_SIZE of %ld, aborting.\n",
 179                           dev_lim->min_page_sz, PAGE_SIZE);
 180                 return -ENODEV;
 181         }
 182         if (dev_lim->num_ports > MTHCA_MAX_PORTS) {
 183                 mthca_err(mdev, "HCA has %d ports, but we only support %d, "
 184                           "aborting.\n",
 185                           dev_lim->num_ports, MTHCA_MAX_PORTS);
 186                 return -ENODEV;
 187         }
 188
 189         if (dev_lim->uar_size > pci_resource_len(mdev->pdev, 2)) {
 190                 mthca_err(mdev, "HCA reported UAR size of 0x%x bigger than "
 191                           "PCI resource 2 size of 0x%llx, aborting.\n",
 192                           dev_lim->uar_size,
 193                           (unsigned long long)pci_resource_len(mdev->pdev, 2));
 194                 return -ENODEV;
 195         }
 196
 197         mdev->limits.num_ports          = dev_lim->num_ports;
 198         mdev->limits.vl_cap             = dev_lim->max_vl;
 199         mdev->limits.mtu_cap            = dev_lim->max_mtu;
 200         mdev->limits.gid_table_len      = dev_lim->max_gids;
 201         mdev->limits.pkey_table_len     = dev_lim->max_pkeys;
 202         mdev->limits.local_ca_ack_delay = dev_lim->local_ca_ack_delay;
 203         mdev->limits.max_sg             = dev_lim->max_sg;
 204         mdev->limits.max_wqes           = dev_lim->max_qp_sz;
 205         mdev->limits.max_qp_init_rdma   = dev_lim->max_requester_per_qp;
 206         mdev->limits.reserved_qps       = dev_lim->reserved_qps;
 207         mdev->limits.max_srq_wqes       = dev_lim->max_srq_sz;
 208         mdev->limits.reserved_srqs      = dev_lim->reserved_srqs;
 209         mdev->limits.reserved_eecs      = dev_lim->reserved_eecs;
 210         mdev->limits.max_desc_sz        = dev_lim->max_desc_sz;
 211         mdev->limits.max_srq_sge        = mthca_max_srq_sge(mdev);
 212         /*
 213          * Subtract 1 from the limit because we need to allocate a
 214          * spare CQE so the HCA HW can tell the difference between an
 215          * empty CQ and a full CQ.
 216          */
 217         mdev->limits.max_cqes           = dev_lim->max_cq_sz - 1;
 218         mdev->limits.reserved_cqs       = dev_lim->reserved_cqs;
 219         mdev->limits.reserved_eqs       = dev_lim->reserved_eqs;
 220         mdev->limits.reserved_mtts      = dev_lim->reserved_mtts;
 221         mdev->limits.reserved_mrws      = dev_lim->reserved_mrws;
 222         mdev->limits.reserved_uars      = dev_lim->reserved_uars;
 223         mdev->limits.reserved_pds       = dev_lim->reserved_pds;
 224         mdev->limits.port_width_cap     = dev_lim->max_port_width;
 225         mdev->limits.page_size_cap      = ~(u32) (dev_lim->min_page_sz - 1);
 226         mdev->limits.flags              = dev_lim->flags;
 227         /*
 228          * For old FW that doesn't return static rate support, use a
 229          * value of 0x3 (only static rate values of 0 or 1 are handled),
 230          * except on Sinai, where even old FW can handle static rate
 231          * values of 2 and 3.
 232          */
 233         if (dev_lim->stat_rate_support)
 234                 mdev->limits.stat_rate_support = dev_lim->stat_rate_support;
 235         else if (mdev->mthca_flags & MTHCA_FLAG_SINAI_OPT)
 236                 mdev->limits.stat_rate_support = 0xf;
 237         else
 238                 mdev->limits.stat_rate_support = 0x3;
 239
 240         /* IB_DEVICE_RESIZE_MAX_WR not supported by driver.
 241            May be doable since hardware supports it for SRQ.
 242
 243            IB_DEVICE_N_NOTIFY_CQ is supported by hardware but not by driver.
 244
 245            IB_DEVICE_SRQ_RESIZE is supported by hardware but SRQ is not
 246            supported by driver. */
 247         mdev->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT |
 248                 IB_DEVICE_PORT_ACTIVE_EVENT |
 249                 IB_DEVICE_SYS_IMAGE_GUID |
 250                 IB_DEVICE_RC_RNR_NAK_GEN;
 251
 252         if (dev_lim->flags & DEV_LIM_FLAG_BAD_PKEY_CNTR)
 253                 mdev->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR;
 254
 255         if (dev_lim->flags & DEV_LIM_FLAG_BAD_QKEY_CNTR)
 256                 mdev->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR;
 257
 258         if (dev_lim->flags & DEV_LIM_FLAG_RAW_MULTI)
 259                 mdev->device_cap_flags |= IB_DEVICE_RAW_MULTI;
 260
 261         if (dev_lim->flags & DEV_LIM_FLAG_AUTO_PATH_MIG)
 262                 mdev->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG;
 263
 264         if (dev_lim->flags & DEV_LIM_FLAG_UD_AV_PORT_ENFORCE)
 265                 mdev->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE;
 266
 267         if (dev_lim->flags & DEV_LIM_FLAG_SRQ)
 268                 mdev->mthca_flags |= MTHCA_FLAG_SRQ;
 269
 270         if (mthca_is_memfree(mdev))
 271                 if (dev_lim->flags & DEV_LIM_FLAG_IPOIB_CSUM)
 272                         mdev->device_cap_flags |= IB_DEVICE_UD_IP_CSUM;
 273
 274         return 0;
 275 }
 276
 277 static int mthca_init_tavor(struct mthca_dev *mdev)
 278 {
 279         u8 status;
 280         int err;
 281         struct mthca_dev_lim        dev_lim;
 282         struct mthca_profile        profile;
 283         struct mthca_init_hca_param init_hca;
 284
 285         err = mthca_SYS_EN(mdev, &status);
 286         if (err) {
 287                 mthca_err(mdev, "SYS_EN command failed, aborting.\n");
 288                 return err;
 289         }
 290         if (status) {
 291                 mthca_err(mdev, "SYS_EN returned status 0x%02x, "
 292                           "aborting.\n", status);
 293                 return -EINVAL;
 294         }
 295
 296         err = mthca_QUERY_FW(mdev, &status);
 297         if (err) {
 298                 mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
 299                 goto err_disable;
 300         }
 301         if (status) {
 302                 mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
 303                           "aborting.\n", status);
 304                 err = -EINVAL;
 305                 goto err_disable;
 306         }
 307         err = mthca_QUERY_DDR(mdev, &status);
 308         if (err) {
 309                 mthca_err(mdev, "QUERY_DDR command failed, aborting.\n");
 310                 goto err_disable;
 311         }
 312         if (status) {
 313                 mthca_err(mdev, "QUERY_DDR returned status 0x%02x, "
 314                           "aborting.\n", status);
 315                 err = -EINVAL;
 316                 goto err_disable;
 317         }
 318
 319         err = mthca_dev_lim(mdev, &dev_lim);
 320         if (err) {
 321                 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
 322                 goto err_disable;
 323         }
 324
 325         profile = hca_profile;
 326         profile.num_uar   = dev_lim.uar_size / PAGE_SIZE;
 327         profile.uarc_size = 0;
 328         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 329                 profile.num_srq = dev_lim.max_srqs;
 330
 331         err = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
 332         if (err < 0)
 333                 goto err_disable;
 334
 335         err = mthca_INIT_HCA(mdev, &init_hca, &status);
 336         if (err) {
 337                 mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
 338                 goto err_disable;
 339         }
 340         if (status) {
 341                 mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
 342                           "aborting.\n", status);
 343                 err = -EINVAL;
 344                 goto err_disable;
 345         }
 346
 347         return 0;
 348
 349 err_disable:
 350         mthca_SYS_DIS(mdev, &status);
 351
 352         return err;
 353 }
 354
 355 static int mthca_load_fw(struct mthca_dev *mdev)
 356 {
 357         u8 status;
 358         int err;
 359
 360         /* FIXME: use HCA-attached memory for FW if present */
 361
 362         mdev->fw.arbel.fw_icm =
 363                 mthca_alloc_icm(mdev, mdev->fw.arbel.fw_pages,
 364                                 GFP_HIGHUSER | __GFP_NOWARN, 0);
 365         if (!mdev->fw.arbel.fw_icm) {
 366                 mthca_err(mdev, "Couldn't allocate FW area, aborting.\n");
 367                 return -ENOMEM;
 368         }
 369
 370         err = mthca_MAP_FA(mdev, mdev->fw.arbel.fw_icm, &status);
 371         if (err) {
 372                 mthca_err(mdev, "MAP_FA command failed, aborting.\n");
 373                 goto err_free;
 374         }
 375         if (status) {
 376                 mthca_err(mdev, "MAP_FA returned status 0x%02x, aborting.\n", status);
 377                 err = -EINVAL;
 378                 goto err_free;
 379         }
 380         err = mthca_RUN_FW(mdev, &status);
 381         if (err) {
 382                 mthca_err(mdev, "RUN_FW command failed, aborting.\n");
 383                 goto err_unmap_fa;
 384         }
 385         if (status) {
 386                 mthca_err(mdev, "RUN_FW returned status 0x%02x, aborting.\n", status);
 387                 err = -EINVAL;
 388                 goto err_unmap_fa;
 389         }
 390
 391         return 0;
 392
 393 err_unmap_fa:
 394         mthca_UNMAP_FA(mdev, &status);
 395
 396 err_free:
 397         mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
 398         return err;
 399 }
 400
 401 static int mthca_init_icm(struct mthca_dev *mdev,
 402                           struct mthca_dev_lim *dev_lim,
 403                           struct mthca_init_hca_param *init_hca,
 404                           u64 icm_size)
 405 {
 406         u64 aux_pages;
 407         u8 status;
 408         int err;
 409
 410         err = mthca_SET_ICM_SIZE(mdev, icm_size, &aux_pages, &status);
 411         if (err) {
 412                 mthca_err(mdev, "SET_ICM_SIZE command failed, aborting.\n");
 413                 return err;
 414         }
 415         if (status) {
 416                 mthca_err(mdev, "SET_ICM_SIZE returned status 0x%02x, "
 417                           "aborting.\n", status);
 418                 return -EINVAL;
 419         }
 420
 421         mthca_dbg(mdev, "%lld KB of HCA context requires %lld KB aux memory.\n",
 422                   (unsigned long long) icm_size >> 10,
 423                   (unsigned long long) aux_pages << 2);
 424
 425         mdev->fw.arbel.aux_icm = mthca_alloc_icm(mdev, aux_pages,
 426                                                  GFP_HIGHUSER | __GFP_NOWARN, 0);
 427         if (!mdev->fw.arbel.aux_icm) {
 428                 mthca_err(mdev, "Couldn't allocate aux memory, aborting.\n");
 429                 return -ENOMEM;
 430         }
 431
 432         err = mthca_MAP_ICM_AUX(mdev, mdev->fw.arbel.aux_icm, &status);
 433         if (err) {
 434                 mthca_err(mdev, "MAP_ICM_AUX command failed, aborting.\n");
 435                 goto err_free_aux;
 436         }
 437         if (status) {
 438                 mthca_err(mdev, "MAP_ICM_AUX returned status 0x%02x, aborting.\n", status);
 439                 err = -EINVAL;
 440                 goto err_free_aux;
 441         }
 442
 443         err = mthca_map_eq_icm(mdev, init_hca->eqc_base);
 444         if (err) {
 445                 mthca_err(mdev, "Failed to map EQ context memory, aborting.\n");
 446                 goto err_unmap_aux;
 447         }
 448
 449         /* CPU writes to non-reserved MTTs, while HCA might DMA to reserved mtts */
 450         mdev->limits.reserved_mtts = ALIGN(mdev->limits.reserved_mtts * MTHCA_MTT_SEG_SIZE,
 451                                            dma_get_cache_alignment()) / MTHCA_MTT_SEG_SIZE;
 452
 453         mdev->mr_table.mtt_table = mthca_alloc_icm_table(mdev, init_hca->mtt_base,
 454                                                          MTHCA_MTT_SEG_SIZE,
 455                                                          mdev->limits.num_mtt_segs,
 456                                                          mdev->limits.reserved_mtts,
 457                                                          1, 0);
 458         if (!mdev->mr_table.mtt_table) {
 459                 mthca_err(mdev, "Failed to map MTT context memory, aborting.\n");
 460                 err = -ENOMEM;
 461                 goto err_unmap_eq;
 462         }
 463
 464         mdev->mr_table.mpt_table = mthca_alloc_icm_table(mdev, init_hca->mpt_base,
 465                                                          dev_lim->mpt_entry_sz,
 466                                                          mdev->limits.num_mpts,
 467                                                          mdev->limits.reserved_mrws,
 468                                                          1, 1);
 469         if (!mdev->mr_table.mpt_table) {
 470                 mthca_err(mdev, "Failed to map MPT context memory, aborting.\n");
 471                 err = -ENOMEM;
 472                 goto err_unmap_mtt;
 473         }
 474
 475         mdev->qp_table.qp_table = mthca_alloc_icm_table(mdev, init_hca->qpc_base,
 476                                                         dev_lim->qpc_entry_sz,
 477                                                         mdev->limits.num_qps,
 478                                                         mdev->limits.reserved_qps,
 479                                                         0, 0);
 480         if (!mdev->qp_table.qp_table) {
 481                 mthca_err(mdev, "Failed to map QP context memory, aborting.\n");
 482                 err = -ENOMEM;
 483                 goto err_unmap_mpt;
 484         }
 485
 486         mdev->qp_table.eqp_table = mthca_alloc_icm_table(mdev, init_hca->eqpc_base,
 487                                                          dev_lim->eqpc_entry_sz,
 488                                                          mdev->limits.num_qps,
 489                                                          mdev->limits.reserved_qps,
 490                                                          0, 0);
 491         if (!mdev->qp_table.eqp_table) {
 492                 mthca_err(mdev, "Failed to map EQP context memory, aborting.\n");
 493                 err = -ENOMEM;
 494                 goto err_unmap_qp;
 495         }
 496
 497         mdev->qp_table.rdb_table = mthca_alloc_icm_table(mdev, init_hca->rdb_base,
 498                                                          MTHCA_RDB_ENTRY_SIZE,
 499                                                          mdev->limits.num_qps <<
 500                                                          mdev->qp_table.rdb_shift, 0,
 501                                                          0, 0);
 502         if (!mdev->qp_table.rdb_table) {
 503                 mthca_err(mdev, "Failed to map RDB context memory, aborting\n");
 504                 err = -ENOMEM;
 505                 goto err_unmap_eqp;
 506         }
 507
 508        mdev->cq_table.table = mthca_alloc_icm_table(mdev, init_hca->cqc_base,
 509                                                     dev_lim->cqc_entry_sz,
 510                                                     mdev->limits.num_cqs,
 511                                                     mdev->limits.reserved_cqs,
 512                                                     0, 0);
 513         if (!mdev->cq_table.table) {
 514                 mthca_err(mdev, "Failed to map CQ context memory, aborting.\n");
 515                 err = -ENOMEM;
 516                 goto err_unmap_rdb;
 517         }
 518
 519         if (mdev->mthca_flags & MTHCA_FLAG_SRQ) {
 520                 mdev->srq_table.table =
 521                         mthca_alloc_icm_table(mdev, init_hca->srqc_base,
 522                                               dev_lim->srq_entry_sz,
 523                                               mdev->limits.num_srqs,
 524                                               mdev->limits.reserved_srqs,
 525                                               0, 0);
 526                 if (!mdev->srq_table.table) {
 527                         mthca_err(mdev, "Failed to map SRQ context memory, "
 528                                   "aborting.\n");
 529                         err = -ENOMEM;
 530                         goto err_unmap_cq;
 531                 }
 532         }
 533
 534         /*
 535          * It's not strictly required, but for simplicity just map the
 536          * whole multicast group table now.  The table isn't very big
 537          * and it's a lot easier than trying to track ref counts.
 538          */
 539         mdev->mcg_table.table = mthca_alloc_icm_table(mdev, init_hca->mc_base,
 540                                                       MTHCA_MGM_ENTRY_SIZE,
 541                                                       mdev->limits.num_mgms +
 542                                                       mdev->limits.num_amgms,
 543                                                       mdev->limits.num_mgms +
 544                                                       mdev->limits.num_amgms,
 545                                                       0, 0);
 546         if (!mdev->mcg_table.table) {
 547                 mthca_err(mdev, "Failed to map MCG context memory, aborting.\n");
 548                 err = -ENOMEM;
 549                 goto err_unmap_srq;
 550         }
 551
 552         return 0;
 553
 554 err_unmap_srq:
 555         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 556                 mthca_free_icm_table(mdev, mdev->srq_table.table);
 557
 558 err_unmap_cq:
 559         mthca_free_icm_table(mdev, mdev->cq_table.table);
 560
 561 err_unmap_rdb:
 562         mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
 563
 564 err_unmap_eqp:
 565         mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
 566
 567 err_unmap_qp:
 568         mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
 569
 570 err_unmap_mpt:
 571         mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
 572
 573 err_unmap_mtt:
 574         mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
 575
 576 err_unmap_eq:
 577         mthca_unmap_eq_icm(mdev);
 578
 579 err_unmap_aux:
 580         mthca_UNMAP_ICM_AUX(mdev, &status);
 581
 582 err_free_aux:
 583         mthca_free_icm(mdev, mdev->fw.arbel.aux_icm, 0);
 584
 585         return err;
 586 }
 587
 588 static void mthca_free_icms(struct mthca_dev *mdev)
 589 {
 590         u8 status;
 591
 592         mthca_free_icm_table(mdev, mdev->mcg_table.table);
 593         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 594                 mthca_free_icm_table(mdev, mdev->srq_table.table);
 595         mthca_free_icm_table(mdev, mdev->cq_table.table);
 596         mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
 597         mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
 598         mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
 599         mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
 600         mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
 601         mthca_unmap_eq_icm(mdev);
 602
 603         mthca_UNMAP_ICM_AUX(mdev, &status);
 604         mthca_free_icm(mdev, mdev->fw.arbel.aux_icm, 0);
 605 }
 606
 607 static int mthca_init_arbel(struct mthca_dev *mdev)
 608 {
 609         struct mthca_dev_lim        dev_lim;
 610         struct mthca_profile        profile;
 611         struct mthca_init_hca_param init_hca;
 612         u64 icm_size;
 613         u8 status;
 614         int err;
 615
 616         err = mthca_QUERY_FW(mdev, &status);
 617         if (err) {
 618                 mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
 619                 return err;
 620         }
 621         if (status) {
 622                 mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
 623                           "aborting.\n", status);
 624                 return -EINVAL;
 625         }
 626
 627         err = mthca_ENABLE_LAM(mdev, &status);
 628         if (err) {
 629                 mthca_err(mdev, "ENABLE_LAM command failed, aborting.\n");
 630                 return err;
 631         }
 632         if (status == MTHCA_CMD_STAT_LAM_NOT_PRE) {
 633                 mthca_dbg(mdev, "No HCA-attached memory (running in MemFree mode)\n");
 634                 mdev->mthca_flags |= MTHCA_FLAG_NO_LAM;
 635         } else if (status) {
 636                 mthca_err(mdev, "ENABLE_LAM returned status 0x%02x, "
 637                           "aborting.\n", status);
 638                 return -EINVAL;
 639         }
 640
 641         err = mthca_load_fw(mdev);
 642         if (err) {
 643                 mthca_err(mdev, "Failed to start FW, aborting.\n");
 644                 goto err_disable;
 645         }
 646
 647         err = mthca_dev_lim(mdev, &dev_lim);
 648         if (err) {
 649                 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
 650                 goto err_stop_fw;
 651         }
 652
 653         profile = hca_profile;
 654         profile.num_uar  = dev_lim.uar_size / PAGE_SIZE;
 655         profile.num_udav = 0;
 656         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 657                 profile.num_srq = dev_lim.max_srqs;
 658
 659         icm_size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
 660         if ((int) icm_size < 0) {
 661                 err = icm_size;
 662                 goto err_stop_fw;
 663         }
 664
 665         err = mthca_init_icm(mdev, &dev_lim, &init_hca, icm_size);
 666         if (err)
 667                 goto err_stop_fw;
 668
 669         err = mthca_INIT_HCA(mdev, &init_hca, &status);
 670         if (err) {
 671                 mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
 672                 goto err_free_icm;
 673         }
 674         if (status) {
 675                 mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
 676                           "aborting.\n", status);
 677                 err = -EINVAL;
 678                 goto err_free_icm;
 679         }
 680
 681         return 0;
 682
 683 err_free_icm:
 684         mthca_free_icms(mdev);
 685
 686 err_stop_fw:
 687         mthca_UNMAP_FA(mdev, &status);
 688         mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
 689
 690 err_disable:
 691         if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
 692                 mthca_DISABLE_LAM(mdev, &status);
 693
 694         return err;
 695 }
 696
 697 static void mthca_close_hca(struct mthca_dev *mdev)
 698 {
 699         u8 status;
 700
 701         mthca_CLOSE_HCA(mdev, 0, &status);
 702
 703         if (mthca_is_memfree(mdev)) {
 704                 mthca_free_icms(mdev);
 705
 706                 mthca_UNMAP_FA(mdev, &status);
 707                 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm, 0);
 708
 709                 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
 710                         mthca_DISABLE_LAM(mdev, &status);
 711         } else
 712                 mthca_SYS_DIS(mdev, &status);
 713 }
 714
 715 static int mthca_init_hca(struct mthca_dev *mdev)
 716 {
 717         u8 status;
 718         int err;
 719         struct mthca_adapter adapter;
 720
 721         if (mthca_is_memfree(mdev))
 722                 err = mthca_init_arbel(mdev);
 723         else
 724                 err = mthca_init_tavor(mdev);
 725
 726         if (err)
 727                 return err;
 728
 729         err = mthca_QUERY_ADAPTER(mdev, &adapter, &status);
 730         if (err) {
 731                 mthca_err(mdev, "QUERY_ADAPTER command failed, aborting.\n");
 732                 goto err_close;
 733         }
 734         if (status) {
 735                 mthca_err(mdev, "QUERY_ADAPTER returned status 0x%02x, "
 736                           "aborting.\n", status);
 737                 err = -EINVAL;
 738                 goto err_close;
 739         }
 740
 741         mdev->eq_table.inta_pin = adapter.inta_pin;
 742         if (!mthca_is_memfree(mdev))
 743                 mdev->rev_id = adapter.revision_id;
 744         memcpy(mdev->board_id, adapter.board_id, sizeof mdev->board_id);
 745
 746         return 0;
 747
 748 err_close:
 749         mthca_close_hca(mdev);
 750         return err;
 751 }
 752
 753 static int mthca_setup_hca(struct mthca_dev *dev)
 754 {
 755         int err;
 756         u8 status;
 757
 758         MTHCA_INIT_DOORBELL_LOCK(&dev->doorbell_lock);
 759
 760         err = mthca_init_uar_table(dev);
 761         if (err) {
 762                 mthca_err(dev, "Failed to initialize "
 763                           "user access region table, aborting.\n");
 764                 return err;
 765         }
 766
 767         err = mthca_uar_alloc(dev, &dev->driver_uar);
 768         if (err) {
 769                 mthca_err(dev, "Failed to allocate driver access region, "
 770                           "aborting.\n");
 771                 goto err_uar_table_free;
 772         }
 773
 774         dev->kar = ioremap(dev->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
 775         if (!dev->kar) {
 776                 mthca_err(dev, "Couldn't map kernel access region, "
 777                           "aborting.\n");
 778                 err = -ENOMEM;
 779                 goto err_uar_free;
 780         }
 781
 782         err = mthca_init_pd_table(dev);
 783         if (err) {
 784                 mthca_err(dev, "Failed to initialize "
 785                           "protection domain table, aborting.\n");
 786                 goto err_kar_unmap;
 787         }
 788
 789         err = mthca_init_mr_table(dev);
 790         if (err) {
 791                 mthca_err(dev, "Failed to initialize "
 792                           "memory region table, aborting.\n");
 793                 goto err_pd_table_free;
 794         }
 795
 796         err = mthca_pd_alloc(dev, 1, &dev->driver_pd);
 797         if (err) {
 798                 mthca_err(dev, "Failed to create driver PD, "
 799                           "aborting.\n");
 800                 goto err_mr_table_free;
 801         }
 802
 803         err = mthca_init_eq_table(dev);
 804         if (err) {
 805                 mthca_err(dev, "Failed to initialize "
 806                           "event queue table, aborting.\n");
 807                 goto err_pd_free;
 808         }
 809
 810         err = mthca_cmd_use_events(dev);
 811         if (err) {
 812                 mthca_err(dev, "Failed to switch to event-driven "
 813                           "firmware commands, aborting.\n");
 814                 goto err_eq_table_free;
 815         }
 816
 817         err = mthca_NOP(dev, &status);
 818         if (err || status) {
 819                 if (dev->mthca_flags & MTHCA_FLAG_MSI_X) {
 820                         mthca_warn(dev, "NOP command failed to generate interrupt "
 821                                    "(IRQ %d).\n",
 822                                    dev->eq_table.eq[MTHCA_EQ_CMD].msi_x_vector);
 823                         mthca_warn(dev, "Trying again with MSI-X disabled.\n");
 824                 } else {
 825                         mthca_err(dev, "NOP command failed to generate interrupt "
 826                                   "(IRQ %d), aborting.\n",
 827                                   dev->pdev->irq);
 828                         mthca_err(dev, "BIOS or ACPI interrupt routing problem?\n");
 829                 }
 830
 831                 goto err_cmd_poll;
 832         }
 833
 834         mthca_dbg(dev, "NOP command IRQ test passed\n");
 835
 836         err = mthca_init_cq_table(dev);
 837         if (err) {
 838                 mthca_err(dev, "Failed to initialize "
 839                           "completion queue table, aborting.\n");
 840                 goto err_cmd_poll;
 841         }
 842
 843         err = mthca_init_srq_table(dev);
 844         if (err) {
 845                 mthca_err(dev, "Failed to initialize "
 846                           "shared receive queue table, aborting.\n");
 847                 goto err_cq_table_free;
 848         }
 849
 850         err = mthca_init_qp_table(dev);
 851         if (err) {
 852                 mthca_err(dev, "Failed to initialize "
 853                           "queue pair table, aborting.\n");
 854                 goto err_srq_table_free;
 855         }
 856
 857         err = mthca_init_av_table(dev);
 858         if (err) {
 859                 mthca_err(dev, "Failed to initialize "
 860                           "address vector table, aborting.\n");
 861                 goto err_qp_table_free;
 862         }
 863
 864         err = mthca_init_mcg_table(dev);
 865         if (err) {
 866                 mthca_err(dev, "Failed to initialize "
 867                           "multicast group table, aborting.\n");
 868                 goto err_av_table_free;
 869         }
 870
 871         return 0;
 872
 873 err_av_table_free:
 874         mthca_cleanup_av_table(dev);
 875
 876 err_qp_table_free:
 877         mthca_cleanup_qp_table(dev);
 878
 879 err_srq_table_free:
 880         mthca_cleanup_srq_table(dev);
 881
 882 err_cq_table_free:
 883         mthca_cleanup_cq_table(dev);
 884
 885 err_cmd_poll:
 886         mthca_cmd_use_polling(dev);
 887
 888 err_eq_table_free:
 889         mthca_cleanup_eq_table(dev);
 890
 891 err_pd_free:
 892         mthca_pd_free(dev, &dev->driver_pd);
 893
 894 err_mr_table_free:
 895         mthca_cleanup_mr_table(dev);
 896
 897 err_pd_table_free:
 898         mthca_cleanup_pd_table(dev);
 899
 900 err_kar_unmap:
 901         iounmap(dev->kar);
 902
 903 err_uar_free:
 904         mthca_uar_free(dev, &dev->driver_uar);
 905
 906 err_uar_table_free:
 907         mthca_cleanup_uar_table(dev);
 908         return err;
 909 }
 910
 911 static int mthca_request_regions(struct pci_dev *pdev, int ddr_hidden)
 912 {
 913         int err;
 914
 915         /*
 916          * We can't just use pci_request_regions() because the MSI-X
 917          * table is right in the middle of the first BAR.  If we did
 918          * pci_request_region and grab all of the first BAR, then
 919          * setting up MSI-X would fail, since the PCI core wants to do
 920          * request_mem_region on the MSI-X vector table.
 921          *
 922          * So just request what we need right now, and request any
 923          * other regions we need when setting up EQs.
 924          */
 925         if (!request_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
 926                                 MTHCA_HCR_SIZE, DRV_NAME))
 927                 return -EBUSY;
 928
 929         err = pci_request_region(pdev, 2, DRV_NAME);
 930         if (err)
 931                 goto err_bar2_failed;
 932
 933         if (!ddr_hidden) {
 934                 err = pci_request_region(pdev, 4, DRV_NAME);
 935                 if (err)
 936                         goto err_bar4_failed;
 937         }
 938
 939         return 0;
 940
 941 err_bar4_failed:
 942         pci_release_region(pdev, 2);
 943
 944 err_bar2_failed:
 945         release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
 946                            MTHCA_HCR_SIZE);
 947
 948         return err;
 949 }
 950
 951 static void mthca_release_regions(struct pci_dev *pdev,
 952                                   int ddr_hidden)
 953 {
 954         if (!ddr_hidden)
 955                 pci_release_region(pdev, 4);
 956
 957         pci_release_region(pdev, 2);
 958
 959         release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
 960                            MTHCA_HCR_SIZE);
 961 }
 962
 963 static int mthca_enable_msi_x(struct mthca_dev *mdev)
 964 {
 965         struct msix_entry entries[3];
 966         int err;
 967
 968         entries[0].entry = 0;
 969         entries[1].entry = 1;
 970         entries[2].entry = 2;
 971
 972         err = pci_enable_msix(mdev->pdev, entries, ARRAY_SIZE(entries));
 973         if (err) {
 974                 if (err > 0)
 975                         mthca_info(mdev, "Only %d MSI-X vectors available, "
 976                                    "not using MSI-X\n", err);
 977                 return err;
 978         }
 979
 980         mdev->eq_table.eq[MTHCA_EQ_COMP ].msi_x_vector = entries[0].vector;
 981         mdev->eq_table.eq[MTHCA_EQ_ASYNC].msi_x_vector = entries[1].vector;
 982         mdev->eq_table.eq[MTHCA_EQ_CMD  ].msi_x_vector = entries[2].vector;
 983
 984         return 0;
 985 }
 986
 987 /* Types of supported HCA */
 988 enum {
 989         TAVOR,                  /* MT23108                        */
 990         ARBEL_COMPAT,           /* MT25208 in Tavor compat mode   */
 991         ARBEL_NATIVE,           /* MT25208 with extended features */
 992         SINAI                   /* MT25204 */
 993 };
 994
 995 #define MTHCA_FW_VER(major, minor, subminor) \
 996         (((u64) (major) << 32) | ((u64) (minor) << 16) | (u64) (subminor))
 997
 998 static struct {
 999         u64 latest_fw;
1000         u32 flags;
1001 } mthca_hca_table[] = {
1002         [TAVOR]        = { .latest_fw = MTHCA_FW_VER(3, 5, 0),
1003                            .flags     = 0 },
1004         [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 8, 200),
1005                            .flags     = MTHCA_FLAG_PCIE },
1006         [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 3, 0),
1007                            .flags     = MTHCA_FLAG_MEMFREE |
1008                                         MTHCA_FLAG_PCIE },
1009         [SINAI]        = { .latest_fw = MTHCA_FW_VER(1, 2, 0),
1010                            .flags     = MTHCA_FLAG_MEMFREE |
1011                                         MTHCA_FLAG_PCIE    |
1012                                         MTHCA_FLAG_SINAI_OPT }
1013 };
1014
1015 static int __mthca_init_one(struct pci_dev *pdev, int hca_type)
1016 {
1017         int ddr_hidden = 0;
1018         int err;
1019         struct mthca_dev *mdev;
1020
1021         printk(KERN_INFO PFX "Initializing %s\n",
1022                pci_name(pdev));
1023
1024         err = pci_enable_device(pdev);
1025         if (err) {
1026                 dev_err(&pdev->dev, "Cannot enable PCI device, "
1027                         "aborting.\n");
1028                 return err;
1029         }
1030
1031         /*
1032          * Check for BARs.  We expect 0: 1MB, 2: 8MB, 4: DDR (may not
1033          * be present)
1034          */
1035         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) ||
1036             pci_resource_len(pdev, 0) != 1 << 20) {
1037                 dev_err(&pdev->dev, "Missing DCS, aborting.\n");
1038                 err = -ENODEV;
1039                 goto err_disable_pdev;
1040         }
1041         if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
1042                 dev_err(&pdev->dev, "Missing UAR, aborting.\n");
1043                 err = -ENODEV;
1044                 goto err_disable_pdev;
1045         }
1046         if (!(pci_resource_flags(pdev, 4) & IORESOURCE_MEM))
1047                 ddr_hidden = 1;
1048
1049         err = mthca_request_regions(pdev, ddr_hidden);
1050         if (err) {
1051                 dev_err(&pdev->dev, "Cannot obtain PCI resources, "
1052                         "aborting.\n");
1053                 goto err_disable_pdev;
1054         }
1055
1056         pci_set_master(pdev);
1057
1058         err = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
1059         if (err) {
1060                 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n");
1061                 err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
1062                 if (err) {
1063                         dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n");
1064                         goto err_free_res;
1065                 }
1066         }
1067         err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
1068         if (err) {
1069                 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit "
1070                          "consistent PCI DMA mask.\n");
1071                 err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
1072                 if (err) {
1073                         dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
1074                                 "aborting.\n");
1075                         goto err_free_res;
1076                 }
1077         }
1078
1079         mdev = (struct mthca_dev *) ib_alloc_device(sizeof *mdev);
1080         if (!mdev) {
1081                 dev_err(&pdev->dev, "Device struct alloc failed, "
1082                         "aborting.\n");
1083                 err = -ENOMEM;
1084                 goto err_free_res;
1085         }
1086
1087         mdev->pdev = pdev;
1088
1089         mdev->mthca_flags = mthca_hca_table[hca_type].flags;
1090         if (ddr_hidden)
1091                 mdev->mthca_flags |= MTHCA_FLAG_DDR_HIDDEN;
1092
1093         /*
1094          * Now reset the HCA before we touch the PCI capabilities or
1095          * attempt a firmware command, since a boot ROM may have left
1096          * the HCA in an undefined state.
1097          */
1098         err = mthca_reset(mdev);
1099         if (err) {
1100                 mthca_err(mdev, "Failed to reset HCA, aborting.\n");
1101                 goto err_free_dev;
1102         }
1103
1104         if (mthca_cmd_init(mdev)) {
1105                 mthca_err(mdev, "Failed to init command interface, aborting.\n");
1106                 goto err_free_dev;
1107         }
1108
1109         err = mthca_tune_pci(mdev);
1110         if (err)
1111                 goto err_cmd;
1112
1113         err = mthca_init_hca(mdev);
1114         if (err)
1115                 goto err_cmd;
1116
1117         if (mdev->fw_ver < mthca_hca_table[hca_type].latest_fw) {
1118                 mthca_warn(mdev, "HCA FW version %d.%d.%03d is old (%d.%d.%03d is current).\n",
1119                            (int) (mdev->fw_ver >> 32), (int) (mdev->fw_ver >> 16) & 0xffff,
1120                            (int) (mdev->fw_ver & 0xffff),
1121                            (int) (mthca_hca_table[hca_type].latest_fw >> 32),
1122                            (int) (mthca_hca_table[hca_type].latest_fw >> 16) & 0xffff,
1123                            (int) (mthca_hca_table[hca_type].latest_fw & 0xffff));
1124                 mthca_warn(mdev, "If you have problems, try updating your HCA FW.\n");
1125         }
1126
1127         if (msi_x && !mthca_enable_msi_x(mdev))
1128                 mdev->mthca_flags |= MTHCA_FLAG_MSI_X;
1129
1130         err = mthca_setup_hca(mdev);
1131         if (err == -EBUSY && (mdev->mthca_flags & MTHCA_FLAG_MSI_X)) {
1132                 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1133                         pci_disable_msix(pdev);
1134                 mdev->mthca_flags &= ~MTHCA_FLAG_MSI_X;
1135
1136                 err = mthca_setup_hca(mdev);
1137         }
1138
1139         if (err)
1140                 goto err_close;
1141
1142         err = mthca_register_device(mdev);
1143         if (err)
1144                 goto err_cleanup;
1145
1146         err = mthca_create_agents(mdev);
1147         if (err)
1148                 goto err_unregister;
1149
1150         pci_set_drvdata(pdev, mdev);
1151         mdev->hca_type = hca_type;
1152
1153         return 0;
1154
1155 err_unregister:
1156         mthca_unregister_device(mdev);
1157
1158 err_cleanup:
1159         mthca_cleanup_mcg_table(mdev);
1160         mthca_cleanup_av_table(mdev);
1161         mthca_cleanup_qp_table(mdev);
1162         mthca_cleanup_srq_table(mdev);
1163         mthca_cleanup_cq_table(mdev);
1164         mthca_cmd_use_polling(mdev);
1165         mthca_cleanup_eq_table(mdev);
1166
1167         mthca_pd_free(mdev, &mdev->driver_pd);
1168
1169         mthca_cleanup_mr_table(mdev);
1170         mthca_cleanup_pd_table(mdev);
1171         mthca_cleanup_uar_table(mdev);
1172
1173 err_close:
1174         if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1175                 pci_disable_msix(pdev);
1176
1177         mthca_close_hca(mdev);
1178
1179 err_cmd:
1180         mthca_cmd_cleanup(mdev);
1181
1182 err_free_dev:
1183         ib_dealloc_device(&mdev->ib_dev);
1184
1185 err_free_res:
1186         mthca_release_regions(pdev, ddr_hidden);
1187
1188 err_disable_pdev:
1189         pci_disable_device(pdev);
1190         pci_set_drvdata(pdev, NULL);
1191         return err;
1192 }
1193
1194 static void __mthca_remove_one(struct pci_dev *pdev)
1195 {
1196         struct mthca_dev *mdev = pci_get_drvdata(pdev);
1197         u8 status;
1198         int p;
1199
1200         if (mdev) {
1201                 mthca_free_agents(mdev);
1202                 mthca_unregister_device(mdev);
1203
1204                 for (p = 1; p <= mdev->limits.num_ports; ++p)
1205                         mthca_CLOSE_IB(mdev, p, &status);
1206
1207                 mthca_cleanup_mcg_table(mdev);
1208                 mthca_cleanup_av_table(mdev);
1209                 mthca_cleanup_qp_table(mdev);
1210                 mthca_cleanup_srq_table(mdev);
1211                 mthca_cleanup_cq_table(mdev);
1212                 mthca_cmd_use_polling(mdev);
1213                 mthca_cleanup_eq_table(mdev);
1214
1215                 mthca_pd_free(mdev, &mdev->driver_pd);
1216
1217                 mthca_cleanup_mr_table(mdev);
1218                 mthca_cleanup_pd_table(mdev);
1219
1220                 iounmap(mdev->kar);
1221                 mthca_uar_free(mdev, &mdev->driver_uar);
1222                 mthca_cleanup_uar_table(mdev);
1223                 mthca_close_hca(mdev);
1224                 mthca_cmd_cleanup(mdev);
1225
1226                 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1227                         pci_disable_msix(pdev);
1228
1229                 ib_dealloc_device(&mdev->ib_dev);
1230                 mthca_release_regions(pdev, mdev->mthca_flags &
1231                                       MTHCA_FLAG_DDR_HIDDEN);
1232                 pci_disable_device(pdev);
1233                 pci_set_drvdata(pdev, NULL);
1234         }
1235 }
1236
1237 int __mthca_restart_one(struct pci_dev *pdev)
1238 {
1239         struct mthca_dev *mdev;
1240         int hca_type;
1241
1242         mdev = pci_get_drvdata(pdev);
1243         if (!mdev)
1244                 return -ENODEV;
1245         hca_type = mdev->hca_type;
1246         __mthca_remove_one(pdev);
1247         return __mthca_init_one(pdev, hca_type);
1248 }
1249
1250 static int __devinit mthca_init_one(struct pci_dev *pdev,
1251                                     const struct pci_device_id *id)
1252 {
1253         static int mthca_version_printed = 0;
1254         int ret;
1255
1256         mutex_lock(&mthca_device_mutex);
1257
1258         if (!mthca_version_printed) {
1259                 printk(KERN_INFO "%s", mthca_version);
1260                 ++mthca_version_printed;
1261         }
1262
1263         if (id->driver_data >= ARRAY_SIZE(mthca_hca_table)) {
1264                 printk(KERN_ERR PFX "%s has invalid driver data %lx\n",
1265                        pci_name(pdev), id->driver_data);
1266                 mutex_unlock(&mthca_device_mutex);
1267                 return -ENODEV;
1268         }
1269
1270         ret = __mthca_init_one(pdev, id->driver_data);
1271
1272         mutex_unlock(&mthca_device_mutex);
1273
1274         return ret;
1275 }
1276
1277 static void __devexit mthca_remove_one(struct pci_dev *pdev)
1278 {
1279         mutex_lock(&mthca_device_mutex);
1280         __mthca_remove_one(pdev);
1281         mutex_unlock(&mthca_device_mutex);
1282 }
1283
1284 static struct pci_device_id mthca_pci_table[] = {
1285         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR),
1286           .driver_data = TAVOR },
1287         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_TAVOR),
1288           .driver_data = TAVOR },
1289         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1290           .driver_data = ARBEL_COMPAT },
1291         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1292           .driver_data = ARBEL_COMPAT },
1293         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL),
1294           .driver_data = ARBEL_NATIVE },
1295         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL),
1296           .driver_data = ARBEL_NATIVE },
1297         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI),
1298           .driver_data = SINAI },
1299         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI),
1300           .driver_data = SINAI },
1301         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1302           .driver_data = SINAI },
1303         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1304           .driver_data = SINAI },
1305         { 0, }
1306 };
1307
1308 MODULE_DEVICE_TABLE(pci, mthca_pci_table);
1309
1310 static struct pci_driver mthca_driver = {
1311         .name           = DRV_NAME,
1312         .id_table       = mthca_pci_table,
1313         .probe          = mthca_init_one,
1314         .remove         = __devexit_p(mthca_remove_one)
1315 };
1316
1317 static void __init __mthca_check_profile_val(const char *name, int *pval,
1318                                              int pval_default)
1319 {
1320         /* value must be positive and power of 2 */
1321         int old_pval = *pval;
1322
1323         if (old_pval <= 0)
1324                 *pval = pval_default;
1325         else
1326                 *pval = roundup_pow_of_two(old_pval);
1327
1328         if (old_pval != *pval) {
1329                 printk(KERN_WARNING PFX "Invalid value %d for %s in module parameter.\n",
1330                        old_pval, name);
1331                 printk(KERN_WARNING PFX "Corrected %s to %d.\n", name, *pval);
1332         }
1333 }
1334
1335 #define mthca_check_profile_val(name, default)                          \
1336         __mthca_check_profile_val(#name, &hca_profile.name, default)
1337
1338 static void __init mthca_validate_profile(void)
1339 {
1340         mthca_check_profile_val(num_qp,            MTHCA_DEFAULT_NUM_QP);
1341         mthca_check_profile_val(rdb_per_qp,        MTHCA_DEFAULT_RDB_PER_QP);
1342         mthca_check_profile_val(num_cq,            MTHCA_DEFAULT_NUM_CQ);
1343         mthca_check_profile_val(num_mcg,           MTHCA_DEFAULT_NUM_MCG);
1344         mthca_check_profile_val(num_mpt,           MTHCA_DEFAULT_NUM_MPT);
1345         mthca_check_profile_val(num_mtt,           MTHCA_DEFAULT_NUM_MTT);
1346         mthca_check_profile_val(num_udav,          MTHCA_DEFAULT_NUM_UDAV);
1347         mthca_check_profile_val(fmr_reserved_mtts, MTHCA_DEFAULT_NUM_RESERVED_MTTS);
1348
1349         if (hca_profile.fmr_reserved_mtts >= hca_profile.num_mtt) {
1350                 printk(KERN_WARNING PFX "Invalid fmr_reserved_mtts module parameter %d.\n",
1351                        hca_profile.fmr_reserved_mtts);
1352                 printk(KERN_WARNING PFX "(Must be smaller than num_mtt %d)\n",
1353                        hca_profile.num_mtt);
1354                 hca_profile.fmr_reserved_mtts = hca_profile.num_mtt / 2;
1355                 printk(KERN_WARNING PFX "Corrected fmr_reserved_mtts to %d.\n",
1356                        hca_profile.fmr_reserved_mtts);
1357         }
1358 }
1359
1360 static int __init mthca_init(void)
1361 {
1362         int ret;
1363
1364         mthca_validate_profile();
1365
1366         ret = mthca_catas_init();
1367         if (ret)
1368                 return ret;
1369
1370         ret = pci_register_driver(&mthca_driver);
1371         if (ret < 0) {
1372                 mthca_catas_cleanup();
1373                 return ret;
1374         }
1375
1376         return 0;
1377 }
1378
1379 static void __exit mthca_cleanup(void)
1380 {
1381         pci_unregister_driver(&mthca_driver);
1382         mthca_catas_cleanup();
1383 }
1384
1385 module_init(mthca_init);
1386 module_exit(mthca_cleanup);