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.
 
   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:
 
  12  *     Redistribution and use in source and binary forms, with or
 
  13  *     without modification, are permitted provided that the following
 
  16  *      - Redistributions of source code must retain the above
 
  17  *        copyright notice, this list of conditions and the following
 
  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.
 
  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
 
  34  * $Id: mthca_main.c 1396 2004-12-28 04:10:27Z roland $
 
  37 #include <linux/config.h>
 
  38 #include <linux/module.h>
 
  39 #include <linux/init.h>
 
  40 #include <linux/errno.h>
 
  41 #include <linux/pci.h>
 
  42 #include <linux/interrupt.h>
 
  44 #include "mthca_dev.h"
 
  45 #include "mthca_config_reg.h"
 
  46 #include "mthca_cmd.h"
 
  47 #include "mthca_profile.h"
 
  48 #include "mthca_memfree.h"
 
  50 MODULE_AUTHOR("Roland Dreier");
 
  51 MODULE_DESCRIPTION("Mellanox InfiniBand HCA low-level driver");
 
  52 MODULE_LICENSE("Dual BSD/GPL");
 
  53 MODULE_VERSION(DRV_VERSION);
 
  58 module_param(msi_x, int, 0444);
 
  59 MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero");
 
  62 module_param(msi, int, 0444);
 
  63 MODULE_PARM_DESC(msi, "attempt to use MSI if nonzero");
 
  65 #else /* CONFIG_PCI_MSI */
 
  70 #endif /* CONFIG_PCI_MSI */
 
  72 static const char mthca_version[] __devinitdata =
 
  73         DRV_NAME ": Mellanox InfiniBand HCA driver v"
 
  74         DRV_VERSION " (" DRV_RELDATE ")\n";
 
  76 static struct mthca_profile default_profile = {
 
  83         .num_udav          = 1 << 15,   /* Tavor only */
 
  84         .fmr_reserved_mtts = 1 << 18,   /* Tavor only */
 
  85         .uarc_size         = 1 << 18,   /* Arbel only */
 
  88 static int __devinit mthca_tune_pci(struct mthca_dev *mdev)
 
  93         /* First try to max out Read Byte Count */
 
  94         cap = pci_find_capability(mdev->pdev, PCI_CAP_ID_PCIX);
 
  96                 if (pci_read_config_word(mdev->pdev, cap + PCI_X_CMD, &val)) {
 
  97                         mthca_err(mdev, "Couldn't read PCI-X command register, "
 
 101                 val = (val & ~PCI_X_CMD_MAX_READ) | (3 << 2);
 
 102                 if (pci_write_config_word(mdev->pdev, cap + PCI_X_CMD, val)) {
 
 103                         mthca_err(mdev, "Couldn't write PCI-X command register, "
 
 107         } else if (!(mdev->mthca_flags & MTHCA_FLAG_PCIE))
 
 108                 mthca_info(mdev, "No PCI-X capability, not setting RBC.\n");
 
 110         cap = pci_find_capability(mdev->pdev, PCI_CAP_ID_EXP);
 
 112                 if (pci_read_config_word(mdev->pdev, cap + PCI_EXP_DEVCTL, &val)) {
 
 113                         mthca_err(mdev, "Couldn't read PCI Express device control "
 
 114                                   "register, aborting.\n");
 
 117                 val = (val & ~PCI_EXP_DEVCTL_READRQ) | (5 << 12);
 
 118                 if (pci_write_config_word(mdev->pdev, cap + PCI_EXP_DEVCTL, val)) {
 
 119                         mthca_err(mdev, "Couldn't write PCI Express device control "
 
 120                                   "register, aborting.\n");
 
 123         } else if (mdev->mthca_flags & MTHCA_FLAG_PCIE)
 
 124                 mthca_info(mdev, "No PCI Express capability, "
 
 125                            "not setting Max Read Request Size.\n");
 
 130 static int __devinit mthca_dev_lim(struct mthca_dev *mdev, struct mthca_dev_lim *dev_lim)
 
 135         err = mthca_QUERY_DEV_LIM(mdev, dev_lim, &status);
 
 137                 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
 
 141                 mthca_err(mdev, "QUERY_DEV_LIM returned status 0x%02x, "
 
 142                           "aborting.\n", status);
 
 145         if (dev_lim->min_page_sz > PAGE_SIZE) {
 
 146                 mthca_err(mdev, "HCA minimum page size of %d bigger than "
 
 147                           "kernel PAGE_SIZE of %ld, aborting.\n",
 
 148                           dev_lim->min_page_sz, PAGE_SIZE);
 
 151         if (dev_lim->num_ports > MTHCA_MAX_PORTS) {
 
 152                 mthca_err(mdev, "HCA has %d ports, but we only support %d, "
 
 154                           dev_lim->num_ports, MTHCA_MAX_PORTS);
 
 158         if (dev_lim->uar_size > pci_resource_len(mdev->pdev, 2)) {
 
 159                 mthca_err(mdev, "HCA reported UAR size of 0x%x bigger than "
 
 160                           "PCI resource 2 size of 0x%lx, aborting.\n",
 
 161                           dev_lim->uar_size, pci_resource_len(mdev->pdev, 2));
 
 165         mdev->limits.num_ports          = dev_lim->num_ports;
 
 166         mdev->limits.vl_cap             = dev_lim->max_vl;
 
 167         mdev->limits.mtu_cap            = dev_lim->max_mtu;
 
 168         mdev->limits.gid_table_len      = dev_lim->max_gids;
 
 169         mdev->limits.pkey_table_len     = dev_lim->max_pkeys;
 
 170         mdev->limits.local_ca_ack_delay = dev_lim->local_ca_ack_delay;
 
 171         mdev->limits.max_sg             = dev_lim->max_sg;
 
 172         mdev->limits.max_wqes           = dev_lim->max_qp_sz;
 
 173         mdev->limits.max_qp_init_rdma   = dev_lim->max_requester_per_qp;
 
 174         mdev->limits.reserved_qps       = dev_lim->reserved_qps;
 
 175         mdev->limits.max_srq_wqes       = dev_lim->max_srq_sz;
 
 176         mdev->limits.reserved_srqs      = dev_lim->reserved_srqs;
 
 177         mdev->limits.reserved_eecs      = dev_lim->reserved_eecs;
 
 178         mdev->limits.max_desc_sz        = dev_lim->max_desc_sz;
 
 180          * Subtract 1 from the limit because we need to allocate a
 
 181          * spare CQE so the HCA HW can tell the difference between an
 
 182          * empty CQ and a full CQ.
 
 184         mdev->limits.max_cqes           = dev_lim->max_cq_sz - 1;
 
 185         mdev->limits.reserved_cqs       = dev_lim->reserved_cqs;
 
 186         mdev->limits.reserved_eqs       = dev_lim->reserved_eqs;
 
 187         mdev->limits.reserved_mtts      = dev_lim->reserved_mtts;
 
 188         mdev->limits.reserved_mrws      = dev_lim->reserved_mrws;
 
 189         mdev->limits.reserved_uars      = dev_lim->reserved_uars;
 
 190         mdev->limits.reserved_pds       = dev_lim->reserved_pds;
 
 191         mdev->limits.port_width_cap     = dev_lim->max_port_width;
 
 192         mdev->limits.page_size_cap      = ~(u32) (dev_lim->min_page_sz - 1);
 
 193         mdev->limits.flags              = dev_lim->flags;
 
 195         /* IB_DEVICE_RESIZE_MAX_WR not supported by driver.
 
 196            May be doable since hardware supports it for SRQ.
 
 198            IB_DEVICE_N_NOTIFY_CQ is supported by hardware but not by driver.
 
 200            IB_DEVICE_SRQ_RESIZE is supported by hardware but SRQ is not
 
 201            supported by driver. */
 
 202         mdev->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT |
 
 203                 IB_DEVICE_PORT_ACTIVE_EVENT |
 
 204                 IB_DEVICE_SYS_IMAGE_GUID |
 
 205                 IB_DEVICE_RC_RNR_NAK_GEN;
 
 207         if (dev_lim->flags & DEV_LIM_FLAG_BAD_PKEY_CNTR)
 
 208                 mdev->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR;
 
 210         if (dev_lim->flags & DEV_LIM_FLAG_BAD_QKEY_CNTR)
 
 211                 mdev->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR;
 
 213         if (dev_lim->flags & DEV_LIM_FLAG_RAW_MULTI)
 
 214                 mdev->device_cap_flags |= IB_DEVICE_RAW_MULTI;
 
 216         if (dev_lim->flags & DEV_LIM_FLAG_AUTO_PATH_MIG)
 
 217                 mdev->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG;
 
 219         if (dev_lim->flags & DEV_LIM_FLAG_UD_AV_PORT_ENFORCE)
 
 220                 mdev->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE;
 
 222         if (dev_lim->flags & DEV_LIM_FLAG_SRQ)
 
 223                 mdev->mthca_flags |= MTHCA_FLAG_SRQ;
 
 228 static int __devinit mthca_init_tavor(struct mthca_dev *mdev)
 
 232         struct mthca_dev_lim        dev_lim;
 
 233         struct mthca_profile        profile;
 
 234         struct mthca_init_hca_param init_hca;
 
 236         err = mthca_SYS_EN(mdev, &status);
 
 238                 mthca_err(mdev, "SYS_EN command failed, aborting.\n");
 
 242                 mthca_err(mdev, "SYS_EN returned status 0x%02x, "
 
 243                           "aborting.\n", status);
 
 247         err = mthca_QUERY_FW(mdev, &status);
 
 249                 mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
 
 253                 mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
 
 254                           "aborting.\n", status);
 
 258         err = mthca_QUERY_DDR(mdev, &status);
 
 260                 mthca_err(mdev, "QUERY_DDR command failed, aborting.\n");
 
 264                 mthca_err(mdev, "QUERY_DDR returned status 0x%02x, "
 
 265                           "aborting.\n", status);
 
 270         err = mthca_dev_lim(mdev, &dev_lim);
 
 272                 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
 
 276         profile = default_profile;
 
 277         profile.num_uar   = dev_lim.uar_size / PAGE_SIZE;
 
 278         profile.uarc_size = 0;
 
 279         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 
 280                 profile.num_srq = dev_lim.max_srqs;
 
 282         err = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
 
 286         err = mthca_INIT_HCA(mdev, &init_hca, &status);
 
 288                 mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
 
 292                 mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
 
 293                           "aborting.\n", status);
 
 301         mthca_SYS_DIS(mdev, &status);
 
 306 static int __devinit mthca_load_fw(struct mthca_dev *mdev)
 
 311         /* FIXME: use HCA-attached memory for FW if present */
 
 313         mdev->fw.arbel.fw_icm =
 
 314                 mthca_alloc_icm(mdev, mdev->fw.arbel.fw_pages,
 
 315                                 GFP_HIGHUSER | __GFP_NOWARN);
 
 316         if (!mdev->fw.arbel.fw_icm) {
 
 317                 mthca_err(mdev, "Couldn't allocate FW area, aborting.\n");
 
 321         err = mthca_MAP_FA(mdev, mdev->fw.arbel.fw_icm, &status);
 
 323                 mthca_err(mdev, "MAP_FA command failed, aborting.\n");
 
 327                 mthca_err(mdev, "MAP_FA returned status 0x%02x, aborting.\n", status);
 
 331         err = mthca_RUN_FW(mdev, &status);
 
 333                 mthca_err(mdev, "RUN_FW command failed, aborting.\n");
 
 337                 mthca_err(mdev, "RUN_FW returned status 0x%02x, aborting.\n", status);
 
 345         mthca_UNMAP_FA(mdev, &status);
 
 348         mthca_free_icm(mdev, mdev->fw.arbel.fw_icm);
 
 352 static int __devinit mthca_init_icm(struct mthca_dev *mdev,
 
 353                                     struct mthca_dev_lim *dev_lim,
 
 354                                     struct mthca_init_hca_param *init_hca,
 
 361         err = mthca_SET_ICM_SIZE(mdev, icm_size, &aux_pages, &status);
 
 363                 mthca_err(mdev, "SET_ICM_SIZE command failed, aborting.\n");
 
 367                 mthca_err(mdev, "SET_ICM_SIZE returned status 0x%02x, "
 
 368                           "aborting.\n", status);
 
 372         mthca_dbg(mdev, "%lld KB of HCA context requires %lld KB aux memory.\n",
 
 373                   (unsigned long long) icm_size >> 10,
 
 374                   (unsigned long long) aux_pages << 2);
 
 376         mdev->fw.arbel.aux_icm = mthca_alloc_icm(mdev, aux_pages,
 
 377                                                  GFP_HIGHUSER | __GFP_NOWARN);
 
 378         if (!mdev->fw.arbel.aux_icm) {
 
 379                 mthca_err(mdev, "Couldn't allocate aux memory, aborting.\n");
 
 383         err = mthca_MAP_ICM_AUX(mdev, mdev->fw.arbel.aux_icm, &status);
 
 385                 mthca_err(mdev, "MAP_ICM_AUX command failed, aborting.\n");
 
 389                 mthca_err(mdev, "MAP_ICM_AUX returned status 0x%02x, aborting.\n", status);
 
 394         err = mthca_map_eq_icm(mdev, init_hca->eqc_base);
 
 396                 mthca_err(mdev, "Failed to map EQ context memory, aborting.\n");
 
 400         mdev->mr_table.mtt_table = mthca_alloc_icm_table(mdev, init_hca->mtt_base,
 
 402                                                          mdev->limits.num_mtt_segs,
 
 403                                                          mdev->limits.reserved_mtts, 1);
 
 404         if (!mdev->mr_table.mtt_table) {
 
 405                 mthca_err(mdev, "Failed to map MTT context memory, aborting.\n");
 
 410         mdev->mr_table.mpt_table = mthca_alloc_icm_table(mdev, init_hca->mpt_base,
 
 411                                                          dev_lim->mpt_entry_sz,
 
 412                                                          mdev->limits.num_mpts,
 
 413                                                          mdev->limits.reserved_mrws, 1);
 
 414         if (!mdev->mr_table.mpt_table) {
 
 415                 mthca_err(mdev, "Failed to map MPT context memory, aborting.\n");
 
 420         mdev->qp_table.qp_table = mthca_alloc_icm_table(mdev, init_hca->qpc_base,
 
 421                                                         dev_lim->qpc_entry_sz,
 
 422                                                         mdev->limits.num_qps,
 
 423                                                         mdev->limits.reserved_qps, 0);
 
 424         if (!mdev->qp_table.qp_table) {
 
 425                 mthca_err(mdev, "Failed to map QP context memory, aborting.\n");
 
 430         mdev->qp_table.eqp_table = mthca_alloc_icm_table(mdev, init_hca->eqpc_base,
 
 431                                                          dev_lim->eqpc_entry_sz,
 
 432                                                          mdev->limits.num_qps,
 
 433                                                          mdev->limits.reserved_qps, 0);
 
 434         if (!mdev->qp_table.eqp_table) {
 
 435                 mthca_err(mdev, "Failed to map EQP context memory, aborting.\n");
 
 440         mdev->qp_table.rdb_table = mthca_alloc_icm_table(mdev, init_hca->rdb_base,
 
 441                                                          MTHCA_RDB_ENTRY_SIZE,
 
 442                                                          mdev->limits.num_qps <<
 
 443                                                          mdev->qp_table.rdb_shift,
 
 445         if (!mdev->qp_table.rdb_table) {
 
 446                 mthca_err(mdev, "Failed to map RDB context memory, aborting\n");
 
 451        mdev->cq_table.table = mthca_alloc_icm_table(mdev, init_hca->cqc_base,
 
 452                                                     dev_lim->cqc_entry_sz,
 
 453                                                     mdev->limits.num_cqs,
 
 454                                                     mdev->limits.reserved_cqs, 0);
 
 455         if (!mdev->cq_table.table) {
 
 456                 mthca_err(mdev, "Failed to map CQ context memory, aborting.\n");
 
 461         if (mdev->mthca_flags & MTHCA_FLAG_SRQ) {
 
 462                 mdev->srq_table.table =
 
 463                         mthca_alloc_icm_table(mdev, init_hca->srqc_base,
 
 464                                               dev_lim->srq_entry_sz,
 
 465                                               mdev->limits.num_srqs,
 
 466                                               mdev->limits.reserved_srqs, 0);
 
 467                 if (!mdev->srq_table.table) {
 
 468                         mthca_err(mdev, "Failed to map SRQ context memory, "
 
 476          * It's not strictly required, but for simplicity just map the
 
 477          * whole multicast group table now.  The table isn't very big
 
 478          * and it's a lot easier than trying to track ref counts.
 
 480         mdev->mcg_table.table = mthca_alloc_icm_table(mdev, init_hca->mc_base,
 
 481                                                       MTHCA_MGM_ENTRY_SIZE,
 
 482                                                       mdev->limits.num_mgms +
 
 483                                                       mdev->limits.num_amgms,
 
 484                                                       mdev->limits.num_mgms +
 
 485                                                       mdev->limits.num_amgms,
 
 487         if (!mdev->mcg_table.table) {
 
 488                 mthca_err(mdev, "Failed to map MCG context memory, aborting.\n");
 
 496         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 
 497                 mthca_free_icm_table(mdev, mdev->srq_table.table);
 
 500         mthca_free_icm_table(mdev, mdev->cq_table.table);
 
 503         mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
 
 506         mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
 
 509         mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
 
 512         mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
 
 515         mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
 
 518         mthca_unmap_eq_icm(mdev);
 
 521         mthca_UNMAP_ICM_AUX(mdev, &status);
 
 524         mthca_free_icm(mdev, mdev->fw.arbel.aux_icm);
 
 529 static void mthca_free_icms(struct mthca_dev *mdev)
 
 533         mthca_free_icm_table(mdev, mdev->mcg_table.table);
 
 534         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 
 535                 mthca_free_icm_table(mdev, mdev->srq_table.table);
 
 536         mthca_free_icm_table(mdev, mdev->cq_table.table);
 
 537         mthca_free_icm_table(mdev, mdev->qp_table.rdb_table);
 
 538         mthca_free_icm_table(mdev, mdev->qp_table.eqp_table);
 
 539         mthca_free_icm_table(mdev, mdev->qp_table.qp_table);
 
 540         mthca_free_icm_table(mdev, mdev->mr_table.mpt_table);
 
 541         mthca_free_icm_table(mdev, mdev->mr_table.mtt_table);
 
 542         mthca_unmap_eq_icm(mdev);
 
 544         mthca_UNMAP_ICM_AUX(mdev, &status);
 
 545         mthca_free_icm(mdev, mdev->fw.arbel.aux_icm);
 
 548 static int __devinit mthca_init_arbel(struct mthca_dev *mdev)
 
 550         struct mthca_dev_lim        dev_lim;
 
 551         struct mthca_profile        profile;
 
 552         struct mthca_init_hca_param init_hca;
 
 557         err = mthca_QUERY_FW(mdev, &status);
 
 559                 mthca_err(mdev, "QUERY_FW command failed, aborting.\n");
 
 563                 mthca_err(mdev, "QUERY_FW returned status 0x%02x, "
 
 564                           "aborting.\n", status);
 
 568         err = mthca_ENABLE_LAM(mdev, &status);
 
 570                 mthca_err(mdev, "ENABLE_LAM command failed, aborting.\n");
 
 573         if (status == MTHCA_CMD_STAT_LAM_NOT_PRE) {
 
 574                 mthca_dbg(mdev, "No HCA-attached memory (running in MemFree mode)\n");
 
 575                 mdev->mthca_flags |= MTHCA_FLAG_NO_LAM;
 
 577                 mthca_err(mdev, "ENABLE_LAM returned status 0x%02x, "
 
 578                           "aborting.\n", status);
 
 582         err = mthca_load_fw(mdev);
 
 584                 mthca_err(mdev, "Failed to start FW, aborting.\n");
 
 588         err = mthca_dev_lim(mdev, &dev_lim);
 
 590                 mthca_err(mdev, "QUERY_DEV_LIM command failed, aborting.\n");
 
 594         profile = default_profile;
 
 595         profile.num_uar  = dev_lim.uar_size / PAGE_SIZE;
 
 596         profile.num_udav = 0;
 
 597         if (mdev->mthca_flags & MTHCA_FLAG_SRQ)
 
 598                 profile.num_srq = dev_lim.max_srqs;
 
 600         icm_size = mthca_make_profile(mdev, &profile, &dev_lim, &init_hca);
 
 601         if ((int) icm_size < 0) {
 
 606         err = mthca_init_icm(mdev, &dev_lim, &init_hca, icm_size);
 
 610         err = mthca_INIT_HCA(mdev, &init_hca, &status);
 
 612                 mthca_err(mdev, "INIT_HCA command failed, aborting.\n");
 
 616                 mthca_err(mdev, "INIT_HCA returned status 0x%02x, "
 
 617                           "aborting.\n", status);
 
 625         mthca_free_icms(mdev);
 
 628         mthca_UNMAP_FA(mdev, &status);
 
 629         mthca_free_icm(mdev, mdev->fw.arbel.fw_icm);
 
 632         if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
 
 633                 mthca_DISABLE_LAM(mdev, &status);
 
 638 static void mthca_close_hca(struct mthca_dev *mdev)
 
 642         mthca_CLOSE_HCA(mdev, 0, &status);
 
 644         if (mthca_is_memfree(mdev)) {
 
 645                 mthca_free_icms(mdev);
 
 647                 mthca_UNMAP_FA(mdev, &status);
 
 648                 mthca_free_icm(mdev, mdev->fw.arbel.fw_icm);
 
 650                 if (!(mdev->mthca_flags & MTHCA_FLAG_NO_LAM))
 
 651                         mthca_DISABLE_LAM(mdev, &status);
 
 653                 mthca_SYS_DIS(mdev, &status);
 
 656 static int __devinit mthca_init_hca(struct mthca_dev *mdev)
 
 660         struct mthca_adapter adapter;
 
 662         if (mthca_is_memfree(mdev))
 
 663                 err = mthca_init_arbel(mdev);
 
 665                 err = mthca_init_tavor(mdev);
 
 670         err = mthca_QUERY_ADAPTER(mdev, &adapter, &status);
 
 672                 mthca_err(mdev, "QUERY_ADAPTER command failed, aborting.\n");
 
 676                 mthca_err(mdev, "QUERY_ADAPTER returned status 0x%02x, "
 
 677                           "aborting.\n", status);
 
 682         mdev->eq_table.inta_pin = adapter.inta_pin;
 
 683         mdev->rev_id            = adapter.revision_id;
 
 684         memcpy(mdev->board_id, adapter.board_id, sizeof mdev->board_id);
 
 689         mthca_close_hca(mdev);
 
 693 static int __devinit mthca_setup_hca(struct mthca_dev *dev)
 
 698         MTHCA_INIT_DOORBELL_LOCK(&dev->doorbell_lock);
 
 700         err = mthca_init_uar_table(dev);
 
 702                 mthca_err(dev, "Failed to initialize "
 
 703                           "user access region table, aborting.\n");
 
 707         err = mthca_uar_alloc(dev, &dev->driver_uar);
 
 709                 mthca_err(dev, "Failed to allocate driver access region, "
 
 711                 goto err_uar_table_free;
 
 714         dev->kar = ioremap(dev->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
 
 716                 mthca_err(dev, "Couldn't map kernel access region, "
 
 722         err = mthca_init_pd_table(dev);
 
 724                 mthca_err(dev, "Failed to initialize "
 
 725                           "protection domain table, aborting.\n");
 
 729         err = mthca_init_mr_table(dev);
 
 731                 mthca_err(dev, "Failed to initialize "
 
 732                           "memory region table, aborting.\n");
 
 733                 goto err_pd_table_free;
 
 736         err = mthca_pd_alloc(dev, 1, &dev->driver_pd);
 
 738                 mthca_err(dev, "Failed to create driver PD, "
 
 740                 goto err_mr_table_free;
 
 743         err = mthca_init_eq_table(dev);
 
 745                 mthca_err(dev, "Failed to initialize "
 
 746                           "event queue table, aborting.\n");
 
 750         err = mthca_cmd_use_events(dev);
 
 752                 mthca_err(dev, "Failed to switch to event-driven "
 
 753                           "firmware commands, aborting.\n");
 
 754                 goto err_eq_table_free;
 
 757         err = mthca_NOP(dev, &status);
 
 759                 mthca_err(dev, "NOP command failed to generate interrupt (IRQ %d), aborting.\n",
 
 760                           dev->mthca_flags & MTHCA_FLAG_MSI_X ?
 
 761                           dev->eq_table.eq[MTHCA_EQ_CMD].msi_x_vector :
 
 763                 if (dev->mthca_flags & (MTHCA_FLAG_MSI | MTHCA_FLAG_MSI_X))
 
 764                         mthca_err(dev, "Try again with MSI/MSI-X disabled.\n");
 
 766                         mthca_err(dev, "BIOS or ACPI interrupt routing problem?\n");
 
 771         mthca_dbg(dev, "NOP command IRQ test passed\n");
 
 773         err = mthca_init_cq_table(dev);
 
 775                 mthca_err(dev, "Failed to initialize "
 
 776                           "completion queue table, aborting.\n");
 
 780         err = mthca_init_srq_table(dev);
 
 782                 mthca_err(dev, "Failed to initialize "
 
 783                           "shared receive queue table, aborting.\n");
 
 784                 goto err_cq_table_free;
 
 787         err = mthca_init_qp_table(dev);
 
 789                 mthca_err(dev, "Failed to initialize "
 
 790                           "queue pair table, aborting.\n");
 
 791                 goto err_srq_table_free;
 
 794         err = mthca_init_av_table(dev);
 
 796                 mthca_err(dev, "Failed to initialize "
 
 797                           "address vector table, aborting.\n");
 
 798                 goto err_qp_table_free;
 
 801         err = mthca_init_mcg_table(dev);
 
 803                 mthca_err(dev, "Failed to initialize "
 
 804                           "multicast group table, aborting.\n");
 
 805                 goto err_av_table_free;
 
 811         mthca_cleanup_av_table(dev);
 
 814         mthca_cleanup_qp_table(dev);
 
 817         mthca_cleanup_srq_table(dev);
 
 820         mthca_cleanup_cq_table(dev);
 
 823         mthca_cmd_use_polling(dev);
 
 826         mthca_cleanup_eq_table(dev);
 
 829         mthca_pd_free(dev, &dev->driver_pd);
 
 832         mthca_cleanup_mr_table(dev);
 
 835         mthca_cleanup_pd_table(dev);
 
 841         mthca_uar_free(dev, &dev->driver_uar);
 
 844         mthca_cleanup_uar_table(dev);
 
 848 static int __devinit mthca_request_regions(struct pci_dev *pdev,
 
 854          * We can't just use pci_request_regions() because the MSI-X
 
 855          * table is right in the middle of the first BAR.  If we did
 
 856          * pci_request_region and grab all of the first BAR, then
 
 857          * setting up MSI-X would fail, since the PCI core wants to do
 
 858          * request_mem_region on the MSI-X vector table.
 
 860          * So just request what we need right now, and request any
 
 861          * other regions we need when setting up EQs.
 
 863         if (!request_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
 
 864                                 MTHCA_HCR_SIZE, DRV_NAME))
 
 867         err = pci_request_region(pdev, 2, DRV_NAME);
 
 869                 goto err_bar2_failed;
 
 872                 err = pci_request_region(pdev, 4, DRV_NAME);
 
 874                         goto err_bar4_failed;
 
 880         pci_release_region(pdev, 2);
 
 883         release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
 
 889 static void mthca_release_regions(struct pci_dev *pdev,
 
 893                 pci_release_region(pdev, 4);
 
 895         pci_release_region(pdev, 2);
 
 897         release_mem_region(pci_resource_start(pdev, 0) + MTHCA_HCR_BASE,
 
 901 static int __devinit mthca_enable_msi_x(struct mthca_dev *mdev)
 
 903         struct msix_entry entries[3];
 
 906         entries[0].entry = 0;
 
 907         entries[1].entry = 1;
 
 908         entries[2].entry = 2;
 
 910         err = pci_enable_msix(mdev->pdev, entries, ARRAY_SIZE(entries));
 
 913                         mthca_info(mdev, "Only %d MSI-X vectors available, "
 
 914                                    "not using MSI-X\n", err);
 
 918         mdev->eq_table.eq[MTHCA_EQ_COMP ].msi_x_vector = entries[0].vector;
 
 919         mdev->eq_table.eq[MTHCA_EQ_ASYNC].msi_x_vector = entries[1].vector;
 
 920         mdev->eq_table.eq[MTHCA_EQ_CMD  ].msi_x_vector = entries[2].vector;
 
 925 /* Types of supported HCA */
 
 928         ARBEL_COMPAT,           /* MT25208 in Tavor compat mode   */
 
 929         ARBEL_NATIVE,           /* MT25208 with extended features */
 
 933 #define MTHCA_FW_VER(major, minor, subminor) \
 
 934         (((u64) (major) << 32) | ((u64) (minor) << 16) | (u64) (subminor))
 
 939 } mthca_hca_table[] = {
 
 940         [TAVOR]        = { .latest_fw = MTHCA_FW_VER(3, 4, 0),
 
 942         [ARBEL_COMPAT] = { .latest_fw = MTHCA_FW_VER(4, 7, 400),
 
 943                            .flags     = MTHCA_FLAG_PCIE },
 
 944         [ARBEL_NATIVE] = { .latest_fw = MTHCA_FW_VER(5, 1, 0),
 
 945                            .flags     = MTHCA_FLAG_MEMFREE |
 
 947         [SINAI]        = { .latest_fw = MTHCA_FW_VER(1, 0, 800),
 
 948                            .flags     = MTHCA_FLAG_MEMFREE |
 
 950                                         MTHCA_FLAG_SINAI_OPT }
 
 953 static int __devinit mthca_init_one(struct pci_dev *pdev,
 
 954                                     const struct pci_device_id *id)
 
 956         static int mthca_version_printed = 0;
 
 959         struct mthca_dev *mdev;
 
 961         if (!mthca_version_printed) {
 
 962                 printk(KERN_INFO "%s", mthca_version);
 
 963                 ++mthca_version_printed;
 
 966         printk(KERN_INFO PFX "Initializing %s\n",
 
 969         if (id->driver_data >= ARRAY_SIZE(mthca_hca_table)) {
 
 970                 printk(KERN_ERR PFX "%s has invalid driver data %lx\n",
 
 971                        pci_name(pdev), id->driver_data);
 
 975         err = pci_enable_device(pdev);
 
 977                 dev_err(&pdev->dev, "Cannot enable PCI device, "
 
 983          * Check for BARs.  We expect 0: 1MB, 2: 8MB, 4: DDR (may not
 
 986         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) ||
 
 987             pci_resource_len(pdev, 0) != 1 << 20) {
 
 988                 dev_err(&pdev->dev, "Missing DCS, aborting.\n");
 
 990                 goto err_disable_pdev;
 
 992         if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
 
 993                 dev_err(&pdev->dev, "Missing UAR, aborting.\n");
 
 995                 goto err_disable_pdev;
 
 997         if (!(pci_resource_flags(pdev, 4) & IORESOURCE_MEM))
 
1000         err = mthca_request_regions(pdev, ddr_hidden);
 
1002                 dev_err(&pdev->dev, "Cannot obtain PCI resources, "
 
1004                 goto err_disable_pdev;
 
1007         pci_set_master(pdev);
 
1009         err = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
 
1011                 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n");
 
1012                 err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
 
1014                         dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n");
 
1018         err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
 
1020                 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit "
 
1021                          "consistent PCI DMA mask.\n");
 
1022                 err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
 
1024                         dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
 
1030         mdev = (struct mthca_dev *) ib_alloc_device(sizeof *mdev);
 
1032                 dev_err(&pdev->dev, "Device struct alloc failed, "
 
1040         mdev->mthca_flags = mthca_hca_table[id->driver_data].flags;
 
1042                 mdev->mthca_flags |= MTHCA_FLAG_DDR_HIDDEN;
 
1045          * Now reset the HCA before we touch the PCI capabilities or
 
1046          * attempt a firmware command, since a boot ROM may have left
 
1047          * the HCA in an undefined state.
 
1049         err = mthca_reset(mdev);
 
1051                 mthca_err(mdev, "Failed to reset HCA, aborting.\n");
 
1055         if (msi_x && !mthca_enable_msi_x(mdev))
 
1056                 mdev->mthca_flags |= MTHCA_FLAG_MSI_X;
 
1057         if (msi && !(mdev->mthca_flags & MTHCA_FLAG_MSI_X) &&
 
1058             !pci_enable_msi(pdev))
 
1059                 mdev->mthca_flags |= MTHCA_FLAG_MSI;
 
1061         if (mthca_cmd_init(mdev)) {
 
1062                 mthca_err(mdev, "Failed to init command interface, aborting.\n");
 
1066         err = mthca_tune_pci(mdev);
 
1070         err = mthca_init_hca(mdev);
 
1074         if (mdev->fw_ver < mthca_hca_table[id->driver_data].latest_fw) {
 
1075                 mthca_warn(mdev, "HCA FW version %d.%d.%d is old (%d.%d.%d is current).\n",
 
1076                            (int) (mdev->fw_ver >> 32), (int) (mdev->fw_ver >> 16) & 0xffff,
 
1077                            (int) (mdev->fw_ver & 0xffff),
 
1078                            (int) (mthca_hca_table[id->driver_data].latest_fw >> 32),
 
1079                            (int) (mthca_hca_table[id->driver_data].latest_fw >> 16) & 0xffff,
 
1080                            (int) (mthca_hca_table[id->driver_data].latest_fw & 0xffff));
 
1081                 mthca_warn(mdev, "If you have problems, try updating your HCA FW.\n");
 
1084         err = mthca_setup_hca(mdev);
 
1088         err = mthca_register_device(mdev);
 
1092         err = mthca_create_agents(mdev);
 
1094                 goto err_unregister;
 
1096         pci_set_drvdata(pdev, mdev);
 
1101         mthca_unregister_device(mdev);
 
1104         mthca_cleanup_mcg_table(mdev);
 
1105         mthca_cleanup_av_table(mdev);
 
1106         mthca_cleanup_qp_table(mdev);
 
1107         mthca_cleanup_srq_table(mdev);
 
1108         mthca_cleanup_cq_table(mdev);
 
1109         mthca_cmd_use_polling(mdev);
 
1110         mthca_cleanup_eq_table(mdev);
 
1112         mthca_pd_free(mdev, &mdev->driver_pd);
 
1114         mthca_cleanup_mr_table(mdev);
 
1115         mthca_cleanup_pd_table(mdev);
 
1116         mthca_cleanup_uar_table(mdev);
 
1119         mthca_close_hca(mdev);
 
1122         mthca_cmd_cleanup(mdev);
 
1125         if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
 
1126                 pci_disable_msix(pdev);
 
1127         if (mdev->mthca_flags & MTHCA_FLAG_MSI)
 
1128                 pci_disable_msi(pdev);
 
1130         ib_dealloc_device(&mdev->ib_dev);
 
1133         mthca_release_regions(pdev, ddr_hidden);
 
1136         pci_disable_device(pdev);
 
1137         pci_set_drvdata(pdev, NULL);
 
1141 static void __devexit mthca_remove_one(struct pci_dev *pdev)
 
1143         struct mthca_dev *mdev = pci_get_drvdata(pdev);
 
1148                 mthca_free_agents(mdev);
 
1149                 mthca_unregister_device(mdev);
 
1151                 for (p = 1; p <= mdev->limits.num_ports; ++p)
 
1152                         mthca_CLOSE_IB(mdev, p, &status);
 
1154                 mthca_cleanup_mcg_table(mdev);
 
1155                 mthca_cleanup_av_table(mdev);
 
1156                 mthca_cleanup_qp_table(mdev);
 
1157                 mthca_cleanup_srq_table(mdev);
 
1158                 mthca_cleanup_cq_table(mdev);
 
1159                 mthca_cmd_use_polling(mdev);
 
1160                 mthca_cleanup_eq_table(mdev);
 
1162                 mthca_pd_free(mdev, &mdev->driver_pd);
 
1164                 mthca_cleanup_mr_table(mdev);
 
1165                 mthca_cleanup_pd_table(mdev);
 
1168                 mthca_uar_free(mdev, &mdev->driver_uar);
 
1169                 mthca_cleanup_uar_table(mdev);
 
1170                 mthca_close_hca(mdev);
 
1171                 mthca_cmd_cleanup(mdev);
 
1173                 if (mdev->mthca_flags & MTHCA_FLAG_MSI_X)
 
1174                         pci_disable_msix(pdev);
 
1175                 if (mdev->mthca_flags & MTHCA_FLAG_MSI)
 
1176                         pci_disable_msi(pdev);
 
1178                 ib_dealloc_device(&mdev->ib_dev);
 
1179                 mthca_release_regions(pdev, mdev->mthca_flags &
 
1180                                       MTHCA_FLAG_DDR_HIDDEN);
 
1181                 pci_disable_device(pdev);
 
1182                 pci_set_drvdata(pdev, NULL);
 
1186 static struct pci_device_id mthca_pci_table[] = {
 
1187         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR),
 
1188           .driver_data = TAVOR },
 
1189         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_TAVOR),
 
1190           .driver_data = TAVOR },
 
1191         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
 
1192           .driver_data = ARBEL_COMPAT },
 
1193         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT),
 
1194           .driver_data = ARBEL_COMPAT },
 
1195         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_ARBEL),
 
1196           .driver_data = ARBEL_NATIVE },
 
1197         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_ARBEL),
 
1198           .driver_data = ARBEL_NATIVE },
 
1199         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI),
 
1200           .driver_data = SINAI },
 
1201         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI),
 
1202           .driver_data = SINAI },
 
1203         { PCI_DEVICE(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
 
1204           .driver_data = SINAI },
 
1205         { PCI_DEVICE(PCI_VENDOR_ID_TOPSPIN, PCI_DEVICE_ID_MELLANOX_SINAI_OLD),
 
1206           .driver_data = SINAI },
 
1210 MODULE_DEVICE_TABLE(pci, mthca_pci_table);
 
1212 static struct pci_driver mthca_driver = {
 
1214         .id_table       = mthca_pci_table,
 
1215         .probe          = mthca_init_one,
 
1216         .remove         = __devexit_p(mthca_remove_one)
 
1219 static int __init mthca_init(void)
 
1223         ret = pci_register_driver(&mthca_driver);
 
1224         return ret < 0 ? ret : 0;
 
1227 static void __exit mthca_cleanup(void)
 
1229         pci_unregister_driver(&mthca_driver);
 
1232 module_init(mthca_init);
 
1233 module_exit(mthca_cleanup);