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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         if (!mthca_is_memfree(mdev))
 739                 mdev->rev_id = adapter.revision_id;
 740         memcpy(mdev->board_id, adapter.board_id, sizeof mdev->board_id);
 741
 742         return 0;
 743
 744 err_close:
 745         mthca_close_hca(mdev);
 746         return err;
 747 }
 748
 749 static int mthca_setup_hca(struct mthca_dev *dev)
 750 {
 751         int err;
 752         u8 status;
 753
 754         MTHCA_INIT_DOORBELL_LOCK(&dev->doorbell_lock);
 755
 756         err = mthca_init_uar_table(dev);
 757         if (err) {
 758                 mthca_err(dev, "Failed to initialize "
 759                           "user access region table, aborting.\n");
 760                 return err;
 761         }
 762
 763         err = mthca_uar_alloc(dev, &dev->driver_uar);
 764         if (err) {
 765                 mthca_err(dev, "Failed to allocate driver access region, "
 766                           "aborting.\n");
 767                 goto err_uar_table_free;
 768         }
 769
 770         dev->kar = ioremap(dev->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
 771         if (!dev->kar) {
 772                 mthca_err(dev, "Couldn't map kernel access region, "
 773                           "aborting.\n");
 774                 err = -ENOMEM;
 775                 goto err_uar_free;
 776         }
 777
 778         err = mthca_init_pd_table(dev);
 779         if (err) {
 780                 mthca_err(dev, "Failed to initialize "
 781                           "protection domain table, aborting.\n");
 782                 goto err_kar_unmap;
 783         }
 784
 785         err = mthca_init_mr_table(dev);
 786         if (err) {
 787                 mthca_err(dev, "Failed to initialize "
 788                           "memory region table, aborting.\n");
 789                 goto err_pd_table_free;
 790         }
 791
 792         err = mthca_pd_alloc(dev, 1, &dev->driver_pd);
 793         if (err) {
 794                 mthca_err(dev, "Failed to create driver PD, "
 795                           "aborting.\n");
 796                 goto err_mr_table_free;
 797         }
 798
 799         err = mthca_init_eq_table(dev);
 800         if (err) {
 801                 mthca_err(dev, "Failed to initialize "
 802                           "event queue table, aborting.\n");
 803                 goto err_pd_free;
 804         }
 805
 806         err = mthca_cmd_use_events(dev);
 807         if (err) {
 808                 mthca_err(dev, "Failed to switch to event-driven "
 809                           "firmware commands, aborting.\n");
 810                 goto err_eq_table_free;
 811         }
 812
 813         err = mthca_NOP(dev, &status);
 814         if (err || status) {
 815                 if (dev->mthca_flags & MTHCA_FLAG_MSI_X) {
 816                         mthca_warn(dev, "NOP command failed to generate interrupt "
 817                                    "(IRQ %d).\n",
 818                                    dev->eq_table.eq[MTHCA_EQ_CMD].msi_x_vector);
 819                         mthca_warn(dev, "Trying again with MSI-X disabled.\n");
 820                 } else {
 821                         mthca_err(dev, "NOP command failed to generate interrupt "
 822                                   "(IRQ %d), aborting.\n",
 823                                   dev->pdev->irq);
 824                         mthca_err(dev, "BIOS or ACPI interrupt routing problem?\n");
 825                 }
 826
 827                 goto err_cmd_poll;
 828         }
 829
 830         mthca_dbg(dev, "NOP command IRQ test passed\n");
 831
 832         err = mthca_init_cq_table(dev);
 833         if (err) {
 834                 mthca_err(dev, "Failed to initialize "
 835                           "completion queue table, aborting.\n");
 836                 goto err_cmd_poll;
 837         }
 838
 839         err = mthca_init_srq_table(dev);
 840         if (err) {
 841                 mthca_err(dev, "Failed to initialize "
 842                           "shared receive queue table, aborting.\n");
 843                 goto err_cq_table_free;
 844         }
 845
 846         err = mthca_init_qp_table(dev);
 847         if (err) {
 848                 mthca_err(dev, "Failed to initialize "
 849                           "queue pair table, aborting.\n");
 850                 goto err_srq_table_free;
 851         }
 852
 853         err = mthca_init_av_table(dev);
 854         if (err) {
 855                 mthca_err(dev, "Failed to initialize "
 856                           "address vector table, aborting.\n");
 857                 goto err_qp_table_free;
 858         }
 859
 860         err = mthca_init_mcg_table(dev);
 861         if (err) {
 862                 mthca_err(dev, "Failed to initialize "
 863                           "multicast group table, aborting.\n");
 864                 goto err_av_table_free;
 865         }
 866
 867         return 0;
 868
 869 err_av_table_free:
 870         mthca_cleanup_av_table(dev);
 871
 872 err_qp_table_free:
 873         mthca_cleanup_qp_table(dev);
 874
 875 err_srq_table_free:
 876         mthca_cleanup_srq_table(dev);
 877
 878 err_cq_table_free:
 879         mthca_cleanup_cq_table(dev);
 880
 881 err_cmd_poll:
 882         mthca_cmd_use_polling(dev);
 883
 884 err_eq_table_free:
 885         mthca_cleanup_eq_table(dev);
 886
 887 err_pd_free:
 888         mthca_pd_free(dev, &dev->driver_pd);
 889
 890 err_mr_table_free:
 891         mthca_cleanup_mr_table(dev);
 892
 893 err_pd_table_free:
 894         mthca_cleanup_pd_table(dev);
 895
 896 err_kar_unmap:
 897         iounmap(dev->kar);
 898
 899 err_uar_free:
 900         mthca_uar_free(dev, &dev->driver_uar);
 901
 902 err_uar_table_free:
 903         mthca_cleanup_uar_table(dev);
 904         return err;
 905 }
 906
 907 static int mthca_request_regions(struct pci_dev *pdev, int ddr_hidden)
 908 {
 909         int err;
 910
 911         /*
 912          * We can't just use pci_request_regions() because the MSI-X
 913          * table is right in the middle of the first BAR.  If we did
 914          * pci_request_region and grab all of the first BAR, then
 915          * setting up MSI-X would fail, since the PCI core wants to do
 916          * request_mem_region on the MSI-X vector table.
 917          *
 918          * So just request what we need right now, and request any
 919          * other regions we need when setting up EQs.
 920          */
 921         if (!request_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
 922                                 MTHCA_HCR_SIZE, DRV_NAME))
 923                 return -EBUSY;
 924
 925         err = pci_request_region(pdev, 2, DRV_NAME);
 926         if (err)
 927                 goto err_bar2_failed;
 928
 929         if (!ddr_hidden) {
 930                 err = pci_request_region(pdev, 4, DRV_NAME);
 931                 if (err)
 932                         goto err_bar4_failed;
 933         }
 934
 935         return 0;
 936
 937 err_bar4_failed:
 938         pci_release_region(pdev, 2);
 939
 940 err_bar2_failed:
 941         release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
 942                            MTHCA_HCR_SIZE);
 943
 944         return err;
 945 }
 946
 947 static void mthca_release_regions(struct pci_dev *pdev,
 948                                   int ddr_hidden)
 949 {
 950         if (!ddr_hidden)
 951                 pci_release_region(pdev, 4);
 952
 953         pci_release_region(pdev, 2);
 954
 955         release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
 956                            MTHCA_HCR_SIZE);
 957 }
 958
 959 static int mthca_enable_msi_x(struct mthca_dev *mdev)
 960 {
 961         struct msix_entry entries[3];
 962         int err;
 963
 964         entries[0].entry = 0;
 965         entries[1].entry = 1;
 966         entries[2].entry = 2;
 967
 968         err = pci_enable_msix(mdev->pdev, entries, ARRAY_SIZE(entries));
 969         if (err) {
 970                 if (err > 0)
 971                         mthca_info(mdev, "Only %d MSI-X vectors available, "
 972                                    "not using MSI-X\n", err);
 973                 return err;
 974         }
 975
 976         mdev->eq_table.eq[MTHCA_EQ_COMP ].msi_x_vector = entries[0].vector;
 977         mdev->eq_table.eq[MTHCA_EQ_ASYNC].msi_x_vector = entries[1].vector;
 978         mdev->eq_table.eq[MTHCA_EQ_CMD  ].msi_x_vector = entries[2].vector;
 979
 980         return 0;
 981 }
 982
 983 /* Types of supported HCA */
 984 enum {
 985         TAVOR,                  /* MT23108                        */
 986         ARBEL_COMPAT,           /* MT25208 in Tavor compat mode   */
 987         ARBEL_NATIVE,           /* MT25208 with extended features */
 988         SINAI                   /* MT25204 */
 989 };
 990
 991 #define MTHCA_FW_VER(major, minor, subminor) \
 992         (((u64) (major) << 32) | ((u64) (minor) << 16) | (u64) (subminor))
 993
 994 static struct {
 995         u64 latest_fw;
 996         u32 flags;
 997 } mthca_hca_table[] = {
 998         [TAVOR]        = { .latest_fw = MTHCA_FW_VER(3, 5, 0),
 999                            .flags     = 0 },
1000         [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 8, 200),
1001                            .flags     = MTHCA_FLAG_PCIE },
1002         [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 3, 0),
1003                            .flags     = MTHCA_FLAG_MEMFREE |
1004                                         MTHCA_FLAG_PCIE },
1005         [SINAI]        = { .latest_fw = MTHCA_FW_VER(1, 2, 0),
1006                            .flags     = MTHCA_FLAG_MEMFREE |
1007                                         MTHCA_FLAG_PCIE    |
1008                                         MTHCA_FLAG_SINAI_OPT }
1009 };
1010
1011 static int __mthca_init_one(struct pci_dev *pdev, int hca_type)
1012 {
1013         int ddr_hidden = 0;
1014         int err;
1015         struct mthca_dev *mdev;
1016
1017         printk(KERN_INFO PFX "Initializing %s\n",
1018                pci_name(pdev));
1019
1020         err = pci_enable_device(pdev);
1021         if (err) {
1022                 dev_err(&pdev->dev, "Cannot enable PCI device, "
1023                         "aborting.\n");
1024                 return err;
1025         }
1026
1027         /*
1028          * Check for BARs.  We expect 0: 1MB, 2: 8MB, 4: DDR (may not
1029          * be present)
1030          */
1031         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) ||
1032             pci_resource_len(pdev, 0) != 1 << 20) {
1033                 dev_err(&pdev->dev, "Missing DCS, aborting.\n");
1034                 err = -ENODEV;
1035                 goto err_disable_pdev;
1036         }
1037         if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
1038                 dev_err(&pdev->dev, "Missing UAR, aborting.\n");
1039                 err = -ENODEV;
1040                 goto err_disable_pdev;
1041         }
1042         if (!(pci_resource_flags(pdev, 4) & IORESOURCE_MEM))
1043                 ddr_hidden = 1;
1044
1045         err = mthca_request_regions(pdev, ddr_hidden);
1046         if (err) {
1047                 dev_err(&pdev->dev, "Cannot obtain PCI resources, "
1048                         "aborting.\n");
1049                 goto err_disable_pdev;
1050         }
1051
1052         pci_set_master(pdev);
1053
1054         err = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
1055         if (err) {
1056                 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n");
1057                 err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
1058                 if (err) {
1059                         dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n");
1060                         goto err_free_res;
1061                 }
1062         }
1063         err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
1064         if (err) {
1065                 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit "
1066                          "consistent PCI DMA mask.\n");
1067                 err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
1068                 if (err) {
1069                         dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
1070                                 "aborting.\n");
1071                         goto err_free_res;
1072                 }
1073         }
1074
1075         mdev = (struct mthca_dev *) ib_alloc_device(sizeof *mdev);
1076         if (!mdev) {
1077                 dev_err(&pdev->dev, "Device struct alloc failed, "
1078                         "aborting.\n");
1079                 err = -ENOMEM;
1080                 goto err_free_res;
1081         }
1082
1083         mdev->pdev = pdev;
1084
1085         mdev->mthca_flags = mthca_hca_table[hca_type].flags;
1086         if (ddr_hidden)
1087                 mdev->mthca_flags |= MTHCA_FLAG_DDR_HIDDEN;
1088
1089         /*
1090          * Now reset the HCA before we touch the PCI capabilities or
1091          * attempt a firmware command, since a boot ROM may have left
1092          * the HCA in an undefined state.
1093          */
1094         err = mthca_reset(mdev);
1095         if (err) {
1096                 mthca_err(mdev, "Failed to reset HCA, aborting.\n");
1097                 goto err_free_dev;
1098         }
1099
1100         if (mthca_cmd_init(mdev)) {
1101                 mthca_err(mdev, "Failed to init command interface, aborting.\n");
1102                 goto err_free_dev;
1103         }
1104
1105         err = mthca_tune_pci(mdev);
1106         if (err)
1107                 goto err_cmd;
1108
1109         err = mthca_init_hca(mdev);
1110         if (err)
1111                 goto err_cmd;
1112
1113         if (mdev->fw_ver < mthca_hca_table[hca_type].latest_fw) {
1114                 mthca_warn(mdev, "HCA FW version %d.%d.%03d is old (%d.%d.%03d is current).\n",
1115                            (int) (mdev->fw_ver >> 32), (int) (mdev->fw_ver >> 16) & 0xffff,
1116                            (int) (mdev->fw_ver & 0xffff),
1117                            (int) (mthca_hca_table[hca_type].latest_fw >> 32),
1118                            (int) (mthca_hca_table[hca_type].latest_fw >> 16) & 0xffff,
1119                            (int) (mthca_hca_table[hca_type].latest_fw & 0xffff));
1120                 mthca_warn(mdev, "If you have problems, try updating your HCA FW.\n");
1121         }
1122
1123         if (msi_x && !mthca_enable_msi_x(mdev))
1124                 mdev->mthca_flags |= MTHCA_FLAG_MSI_X;
1125
1126         err = mthca_setup_hca(mdev);
1127         if (err == -EBUSY && (mdev->mthca_flags & MTHCA_FLAG_MSI_X)) {
1128                 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1129                         pci_disable_msix(pdev);
1130                 mdev->mthca_flags &= ~MTHCA_FLAG_MSI_X;
1131
1132                 err = mthca_setup_hca(mdev);
1133         }
1134
1135         if (err)
1136                 goto err_close;
1137
1138         err = mthca_register_device(mdev);
1139         if (err)
1140                 goto err_cleanup;
1141
1142         err = mthca_create_agents(mdev);
1143         if (err)
1144                 goto err_unregister;
1145
1146         pci_set_drvdata(pdev, mdev);
1147         mdev->hca_type = hca_type;
1148
1149         return 0;
1150
1151 err_unregister:
1152         mthca_unregister_device(mdev);
1153
1154 err_cleanup:
1155         mthca_cleanup_mcg_table(mdev);
1156         mthca_cleanup_av_table(mdev);
1157         mthca_cleanup_qp_table(mdev);
1158         mthca_cleanup_srq_table(mdev);
1159         mthca_cleanup_cq_table(mdev);
1160         mthca_cmd_use_polling(mdev);
1161         mthca_cleanup_eq_table(mdev);
1162
1163         mthca_pd_free(mdev, &mdev->driver_pd);
1164
1165         mthca_cleanup_mr_table(mdev);
1166         mthca_cleanup_pd_table(mdev);
1167         mthca_cleanup_uar_table(mdev);
1168
1169 err_close:
1170         if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1171                 pci_disable_msix(pdev);
1172
1173         mthca_close_hca(mdev);
1174
1175 err_cmd:
1176         mthca_cmd_cleanup(mdev);
1177
1178 err_free_dev:
1179         ib_dealloc_device(&mdev->ib_dev);
1180
1181 err_free_res:
1182         mthca_release_regions(pdev, ddr_hidden);
1183
1184 err_disable_pdev:
1185         pci_disable_device(pdev);
1186         pci_set_drvdata(pdev, NULL);
1187         return err;
1188 }
1189
1190 static void __mthca_remove_one(struct pci_dev *pdev)
1191 {
1192         struct mthca_dev *mdev = pci_get_drvdata(pdev);
1193         u8 status;
1194         int p;
1195
1196         if (mdev) {
1197                 mthca_free_agents(mdev);
1198                 mthca_unregister_device(mdev);
1199
1200                 for (p = 1; p <= mdev->limits.num_ports; ++p)
1201                         mthca_CLOSE_IB(mdev, p, &status);
1202
1203                 mthca_cleanup_mcg_table(mdev);
1204                 mthca_cleanup_av_table(mdev);
1205                 mthca_cleanup_qp_table(mdev);
1206                 mthca_cleanup_srq_table(mdev);
1207                 mthca_cleanup_cq_table(mdev);
1208                 mthca_cmd_use_polling(mdev);
1209                 mthca_cleanup_eq_table(mdev);
1210
1211                 mthca_pd_free(mdev, &mdev->driver_pd);
1212
1213                 mthca_cleanup_mr_table(mdev);
1214                 mthca_cleanup_pd_table(mdev);
1215
1216                 iounmap(mdev->kar);
1217                 mthca_uar_free(mdev, &mdev->driver_uar);
1218                 mthca_cleanup_uar_table(mdev);
1219                 mthca_close_hca(mdev);
1220                 mthca_cmd_cleanup(mdev);
1221
1222                 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
1223                         pci_disable_msix(pdev);
1224
1225                 ib_dealloc_device(&mdev->ib_dev);
1226                 mthca_release_regions(pdev, mdev->mthca_flags &
1227                                       MTHCA_FLAG_DDR_HIDDEN);
1228                 pci_disable_device(pdev);
1229                 pci_set_drvdata(pdev, NULL);
1230         }
1231 }
1232
1233 int __mthca_restart_one(struct pci_dev *pdev)
1234 {
1235         struct mthca_dev *mdev;
1236         int hca_type;
1237
1238         mdev = pci_get_drvdata(pdev);
1239         if (!mdev)
1240                 return -ENODEV;
1241         hca_type = mdev->hca_type;
1242         __mthca_remove_one(pdev);
1243         return __mthca_init_one(pdev, hca_type);
1244 }
1245
1246 static int __devinit mthca_init_one(struct pci_dev *pdev,
1247                                     const struct pci_device_id *id)
1248 {
1249         static int mthca_version_printed = 0;
1250         int ret;
1251
1252         mutex_lock(&mthca_device_mutex);
1253
1254         if (!mthca_version_printed) {
1255                 printk(KERN_INFO "%s", mthca_version);
1256                 ++mthca_version_printed;
1257         }
1258
1259         if (id->driver_data >= ARRAY_SIZE(mthca_hca_table)) {
1260                 printk(KERN_ERR PFX "%s has invalid driver data %lx\n",
1261                        pci_name(pdev), id->driver_data);
1262                 mutex_unlock(&mthca_device_mutex);
1263                 return -ENODEV;
1264         }
1265
1266         ret = __mthca_init_one(pdev, id->driver_data);
1267
1268         mutex_unlock(&mthca_device_mutex);
1269
1270         return ret;
1271 }
1272
1273 static void __devexit mthca_remove_one(struct pci_dev *pdev)
1274 {
1275         mutex_lock(&mthca_device_mutex);
1276         __mthca_remove_one(pdev);
1277         mutex_unlock(&mthca_device_mutex);
1278 }
1279
1280 static struct pci_device_id mthca_pci_table[] = {
1281         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR),
1282           .driver_data = TAVOR },
1283         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_TAVOR),
1284           .driver_data = TAVOR },
1285         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1286           .driver_data = ARBEL_COMPAT },
1287         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
1288           .driver_data = ARBEL_COMPAT },
1289         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL),
1290           .driver_data = ARBEL_NATIVE },
1291         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL),
1292           .driver_data = ARBEL_NATIVE },
1293         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI),
1294           .driver_data = SINAI },
1295         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI),
1296           .driver_data = SINAI },
1297         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1298           .driver_data = SINAI },
1299         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
1300           .driver_data = SINAI },
1301         { 0, }
1302 };
1303
1304 MODULE_DEVICE_TABLE(pci, mthca_pci_table);
1305
1306 static struct pci_driver mthca_driver = {
1307         .name           = DRV_NAME,
1308         .id_table       = mthca_pci_table,
1309         .probe          = mthca_init_one,
1310         .remove         = __devexit_p(mthca_remove_one)
1311 };
1312
1313 static void __init __mthca_check_profile_val(const char *name, int *pval,
1314                                              int pval_default)
1315 {
1316         /* value must be positive and power of 2 */
1317         int old_pval = *pval;
1318
1319         if (old_pval <= 0)
1320                 *pval = pval_default;
1321         else
1322                 *pval = roundup_pow_of_two(old_pval);
1323
1324         if (old_pval != *pval) {
1325                 printk(KERN_WARNING PFX "Invalid value %d for %s in module parameter.\n",
1326                        old_pval, name);
1327                 printk(KERN_WARNING PFX "Corrected %s to %d.\n", name, *pval);
1328         }
1329 }
1330
1331 #define mthca_check_profile_val(name, default)                          \
1332         __mthca_check_profile_val(#name, &hca_profile.name, default)
1333
1334 static void __init mthca_validate_profile(void)
1335 {
1336         mthca_check_profile_val(num_qp,            MTHCA_DEFAULT_NUM_QP);
1337         mthca_check_profile_val(rdb_per_qp,        MTHCA_DEFAULT_RDB_PER_QP);
1338         mthca_check_profile_val(num_cq,            MTHCA_DEFAULT_NUM_CQ);
1339         mthca_check_profile_val(num_mcg,           MTHCA_DEFAULT_NUM_MCG);
1340         mthca_check_profile_val(num_mpt,           MTHCA_DEFAULT_NUM_MPT);
1341         mthca_check_profile_val(num_mtt,           MTHCA_DEFAULT_NUM_MTT);
1342         mthca_check_profile_val(num_udav,          MTHCA_DEFAULT_NUM_UDAV);
1343         mthca_check_profile_val(fmr_reserved_mtts, MTHCA_DEFAULT_NUM_RESERVED_MTTS);
1344
1345         if (hca_profile.fmr_reserved_mtts >= hca_profile.num_mtt) {
1346                 printk(KERN_WARNING PFX "Invalid fmr_reserved_mtts module parameter %d.\n",
1347                        hca_profile.fmr_reserved_mtts);
1348                 printk(KERN_WARNING PFX "(Must be smaller than num_mtt %d)\n",
1349                        hca_profile.num_mtt);
1350                 hca_profile.fmr_reserved_mtts = hca_profile.num_mtt / 2;
1351                 printk(KERN_WARNING PFX "Corrected fmr_reserved_mtts to %d.\n",
1352                        hca_profile.fmr_reserved_mtts);
1353         }
1354 }
1355
1356 static int __init mthca_init(void)
1357 {
1358         int ret;
1359
1360         mthca_validate_profile();
1361
1362         ret = mthca_catas_init();
1363         if (ret)
1364                 return ret;
1365
1366         ret = pci_register_driver(&mthca_driver);
1367         if (ret < 0) {
1368                 mthca_catas_cleanup();
1369                 return ret;
1370         }
1371
1372         return 0;
1373 }
1374
1375 static void __exit mthca_cleanup(void)
1376 {
1377         pci_unregister_driver(&mthca_driver);
1378         mthca_catas_cleanup();
1379 }
1380
1381 module_init(mthca_init);
1382 module_exit(mthca_cleanup);