drivers/net/mlx4/main.c

   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, 2006, 2007, 2008 Mellanox Technologies. All rights reserved.
   5  * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
   6  *
   7  * This software is available to you under a choice of one of two
   8  * licenses.  You may choose to be licensed under the terms of the GNU
   9  * General Public License (GPL) Version 2, available from the file
  10  * COPYING in the main directory of this source tree, or the
  11  * OpenIB.org BSD license below:
  12  *
  13  *     Redistribution and use in source and binary forms, with or
  14  *     without modification, are permitted provided that the following
  15  *     conditions are met:
  16  *
  17  *      - Redistributions of source code must retain the above
  18  *        copyright notice, this list of conditions and the following
  19  *        disclaimer.
  20  *
  21  *      - Redistributions in binary form must reproduce the above
  22  *        copyright notice, this list of conditions and the following
  23  *        disclaimer in the documentation and/or other materials
  24  *        provided with the distribution.
  25  *
  26  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  27  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  28  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  29  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  30  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  31  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  32  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  33  * SOFTWARE.
  34  */
  35
  36 #include <linux/module.h>
  37 #include <linux/init.h>
  38 #include <linux/errno.h>
  39 #include <linux/pci.h>
  40 #include <linux/dma-mapping.h>
  41 #include <linux/slab.h>
  42 #include <linux/io-mapping.h>
  43
  44 #include <linux/mlx4/device.h>
  45 #include <linux/mlx4/doorbell.h>
  46
  47 #include "mlx4.h"
  48 #include "fw.h"
  49 #include "icm.h"
  50
  51 MODULE_AUTHOR("Roland Dreier");
  52 MODULE_DESCRIPTION("Mellanox ConnectX HCA low-level driver");
  53 MODULE_LICENSE("Dual BSD/GPL");
  54 MODULE_VERSION(DRV_VERSION);
  55
  56 struct workqueue_struct *mlx4_wq;
  57
  58 #ifdef CONFIG_MLX4_DEBUG
  59
  60 int mlx4_debug_level = 0;
  61 module_param_named(debug_level, mlx4_debug_level, int, 0644);
  62 MODULE_PARM_DESC(debug_level, "Enable debug tracing if > 0");
  63
  64 #endif /* CONFIG_MLX4_DEBUG */
  65
  66 #ifdef CONFIG_PCI_MSI
  67
  68 static int msi_x = 1;
  69 module_param(msi_x, int, 0444);
  70 MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero");
  71
  72 #else /* CONFIG_PCI_MSI */
  73
  74 #define msi_x (0)
  75
  76 #endif /* CONFIG_PCI_MSI */
  77
  78 static char mlx4_version[] __devinitdata =
  79         DRV_NAME ": Mellanox ConnectX core driver v"
  80         DRV_VERSION " (" DRV_RELDATE ")\n";
  81
  82 static struct mlx4_profile default_profile = {
  83         .num_qp         = 1 << 17,
  84         .num_srq        = 1 << 16,
  85         .rdmarc_per_qp  = 1 << 4,
  86         .num_cq         = 1 << 16,
  87         .num_mcg        = 1 << 13,
  88         .num_mpt        = 1 << 17,
  89         .num_mtt        = 1 << 20,
  90 };
  91
  92 static int log_num_mac = 2;
  93 module_param_named(log_num_mac, log_num_mac, int, 0444);
  94 MODULE_PARM_DESC(log_num_mac, "Log2 max number of MACs per ETH port (1-7)");
  95
  96 static int log_num_vlan;
  97 module_param_named(log_num_vlan, log_num_vlan, int, 0444);
  98 MODULE_PARM_DESC(log_num_vlan, "Log2 max number of VLANs per ETH port (0-7)");
  99
 100 static int use_prio;
 101 module_param_named(use_prio, use_prio, bool, 0444);
 102 MODULE_PARM_DESC(use_prio, "Enable steering by VLAN priority on ETH ports "
 103                   "(0/1, default 0)");
 104
 105 static int log_mtts_per_seg = ilog2(MLX4_MTT_ENTRY_PER_SEG);
 106 module_param_named(log_mtts_per_seg, log_mtts_per_seg, int, 0444);
 107 MODULE_PARM_DESC(log_mtts_per_seg, "Log2 number of MTT entries per segment (1-7)");
 108
 109 int mlx4_check_port_params(struct mlx4_dev *dev,
 110                            enum mlx4_port_type *port_type)
 111 {
 112         int i;
 113
 114         for (i = 0; i < dev->caps.num_ports - 1; i++) {
 115                 if (port_type[i] != port_type[i + 1]) {
 116                         if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP)) {
 117                                 mlx4_err(dev, "Only same port types supported "
 118                                          "on this HCA, aborting.\n");
 119                                 return -EINVAL;
 120                         }
 121                         if (port_type[i] == MLX4_PORT_TYPE_ETH &&
 122                             port_type[i + 1] == MLX4_PORT_TYPE_IB)
 123                                 return -EINVAL;
 124                 }
 125         }
 126
 127         for (i = 0; i < dev->caps.num_ports; i++) {
 128                 if (!(port_type[i] & dev->caps.supported_type[i+1])) {
 129                         mlx4_err(dev, "Requested port type for port %d is not "
 130                                       "supported on this HCA\n", i + 1);
 131                         return -EINVAL;
 132                 }
 133         }
 134         return 0;
 135 }
 136
 137 static void mlx4_set_port_mask(struct mlx4_dev *dev)
 138 {
 139         int i;
 140
 141         dev->caps.port_mask = 0;
 142         for (i = 1; i <= dev->caps.num_ports; ++i)
 143                 if (dev->caps.port_type[i] == MLX4_PORT_TYPE_IB)
 144                         dev->caps.port_mask |= 1 << (i - 1);
 145 }
 146
 147 static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
 148 {
 149         int err;
 150         int i;
 151
 152         err = mlx4_QUERY_DEV_CAP(dev, dev_cap);
 153         if (err) {
 154                 mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
 155                 return err;
 156         }
 157
 158         if (dev_cap->min_page_sz > PAGE_SIZE) {
 159                 mlx4_err(dev, "HCA minimum page size of %d bigger than "
 160                          "kernel PAGE_SIZE of %ld, aborting.\n",
 161                          dev_cap->min_page_sz, PAGE_SIZE);
 162                 return -ENODEV;
 163         }
 164         if (dev_cap->num_ports > MLX4_MAX_PORTS) {
 165                 mlx4_err(dev, "HCA has %d ports, but we only support %d, "
 166                          "aborting.\n",
 167                          dev_cap->num_ports, MLX4_MAX_PORTS);
 168                 return -ENODEV;
 169         }
 170
 171         if (dev_cap->uar_size > pci_resource_len(dev->pdev, 2)) {
 172                 mlx4_err(dev, "HCA reported UAR size of 0x%x bigger than "
 173                          "PCI resource 2 size of 0x%llx, aborting.\n",
 174                          dev_cap->uar_size,
 175                          (unsigned long long) pci_resource_len(dev->pdev, 2));
 176                 return -ENODEV;
 177         }
 178
 179         dev->caps.num_ports          = dev_cap->num_ports;
 180         for (i = 1; i <= dev->caps.num_ports; ++i) {
 181                 dev->caps.vl_cap[i]         = dev_cap->max_vl[i];
 182                 dev->caps.ib_mtu_cap[i]     = dev_cap->ib_mtu[i];
 183                 dev->caps.gid_table_len[i]  = dev_cap->max_gids[i];
 184                 dev->caps.pkey_table_len[i] = dev_cap->max_pkeys[i];
 185                 dev->caps.port_width_cap[i] = dev_cap->max_port_width[i];
 186                 dev->caps.eth_mtu_cap[i]    = dev_cap->eth_mtu[i];
 187                 dev->caps.def_mac[i]        = dev_cap->def_mac[i];
 188                 dev->caps.supported_type[i] = dev_cap->supported_port_types[i];
 189                 dev->caps.trans_type[i]     = dev_cap->trans_type[i];
 190                 dev->caps.vendor_oui[i]     = dev_cap->vendor_oui[i];
 191                 dev->caps.wavelength[i]     = dev_cap->wavelength[i];
 192                 dev->caps.trans_code[i]     = dev_cap->trans_code[i];
 193         }
 194
 195         dev->caps.num_uars           = dev_cap->uar_size / PAGE_SIZE;
 196         dev->caps.local_ca_ack_delay = dev_cap->local_ca_ack_delay;
 197         dev->caps.bf_reg_size        = dev_cap->bf_reg_size;
 198         dev->caps.bf_regs_per_page   = dev_cap->bf_regs_per_page;
 199         dev->caps.max_sq_sg          = dev_cap->max_sq_sg;
 200         dev->caps.max_rq_sg          = dev_cap->max_rq_sg;
 201         dev->caps.max_wqes           = dev_cap->max_qp_sz;
 202         dev->caps.max_qp_init_rdma   = dev_cap->max_requester_per_qp;
 203         dev->caps.max_srq_wqes       = dev_cap->max_srq_sz;
 204         dev->caps.max_srq_sge        = dev_cap->max_rq_sg - 1;
 205         dev->caps.reserved_srqs      = dev_cap->reserved_srqs;
 206         dev->caps.max_sq_desc_sz     = dev_cap->max_sq_desc_sz;
 207         dev->caps.max_rq_desc_sz     = dev_cap->max_rq_desc_sz;
 208         dev->caps.num_qp_per_mgm     = MLX4_QP_PER_MGM;
 209         /*
 210          * Subtract 1 from the limit because we need to allocate a
 211          * spare CQE so the HCA HW can tell the difference between an
 212          * empty CQ and a full CQ.
 213          */
 214         dev->caps.max_cqes           = dev_cap->max_cq_sz - 1;
 215         dev->caps.reserved_cqs       = dev_cap->reserved_cqs;
 216         dev->caps.reserved_eqs       = dev_cap->reserved_eqs;
 217         dev->caps.mtts_per_seg       = 1 << log_mtts_per_seg;
 218         dev->caps.reserved_mtts      = DIV_ROUND_UP(dev_cap->reserved_mtts,
 219                                                     dev->caps.mtts_per_seg);
 220         dev->caps.reserved_mrws      = dev_cap->reserved_mrws;
 221         dev->caps.reserved_uars      = dev_cap->reserved_uars;
 222         dev->caps.reserved_pds       = dev_cap->reserved_pds;
 223         dev->caps.mtt_entry_sz       = dev->caps.mtts_per_seg * dev_cap->mtt_entry_sz;
 224         dev->caps.max_msg_sz         = dev_cap->max_msg_sz;
 225         dev->caps.page_size_cap      = ~(u32) (dev_cap->min_page_sz - 1);
 226         dev->caps.flags              = dev_cap->flags;
 227         dev->caps.bmme_flags         = dev_cap->bmme_flags;
 228         dev->caps.reserved_lkey      = dev_cap->reserved_lkey;
 229         dev->caps.stat_rate_support  = dev_cap->stat_rate_support;
 230         dev->caps.max_gso_sz         = dev_cap->max_gso_sz;
 231
 232         dev->caps.log_num_macs  = log_num_mac;
 233         dev->caps.log_num_vlans = log_num_vlan;
 234         dev->caps.log_num_prios = use_prio ? 3 : 0;
 235
 236         for (i = 1; i <= dev->caps.num_ports; ++i) {
 237                 if (dev->caps.supported_type[i] != MLX4_PORT_TYPE_ETH)
 238                         dev->caps.port_type[i] = MLX4_PORT_TYPE_IB;
 239                 else
 240                         dev->caps.port_type[i] = MLX4_PORT_TYPE_ETH;
 241                 dev->caps.possible_type[i] = dev->caps.port_type[i];
 242                 mlx4_priv(dev)->sense.sense_allowed[i] =
 243                         dev->caps.supported_type[i] == MLX4_PORT_TYPE_AUTO;
 244
 245                 if (dev->caps.log_num_macs > dev_cap->log_max_macs[i]) {
 246                         dev->caps.log_num_macs = dev_cap->log_max_macs[i];
 247                         mlx4_warn(dev, "Requested number of MACs is too much "
 248                                   "for port %d, reducing to %d.\n",
 249                                   i, 1 << dev->caps.log_num_macs);
 250                 }
 251                 if (dev->caps.log_num_vlans > dev_cap->log_max_vlans[i]) {
 252                         dev->caps.log_num_vlans = dev_cap->log_max_vlans[i];
 253                         mlx4_warn(dev, "Requested number of VLANs is too much "
 254                                   "for port %d, reducing to %d.\n",
 255                                   i, 1 << dev->caps.log_num_vlans);
 256                 }
 257         }
 258
 259         mlx4_set_port_mask(dev);
 260
 261         dev->caps.max_counters = 1 << ilog2(dev_cap->max_counters);
 262
 263         dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW] = dev_cap->reserved_qps;
 264         dev->caps.reserved_qps_cnt[MLX4_QP_REGION_ETH_ADDR] =
 265                 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_ADDR] =
 266                 (1 << dev->caps.log_num_macs) *
 267                 (1 << dev->caps.log_num_vlans) *
 268                 (1 << dev->caps.log_num_prios) *
 269                 dev->caps.num_ports;
 270         dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_EXCH] = MLX4_NUM_FEXCH;
 271
 272         dev->caps.reserved_qps = dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW] +
 273                 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_ETH_ADDR] +
 274                 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_ADDR] +
 275                 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_EXCH];
 276
 277         return 0;
 278 }
 279
 280 /*
 281  * Change the port configuration of the device.
 282  * Every user of this function must hold the port mutex.
 283  */
 284 int mlx4_change_port_types(struct mlx4_dev *dev,
 285                            enum mlx4_port_type *port_types)
 286 {
 287         int err = 0;
 288         int change = 0;
 289         int port;
 290
 291         for (port = 0; port <  dev->caps.num_ports; port++) {
 292                 /* Change the port type only if the new type is different
 293                  * from the current, and not set to Auto */
 294                 if (port_types[port] != dev->caps.port_type[port + 1]) {
 295                         change = 1;
 296                         dev->caps.port_type[port + 1] = port_types[port];
 297                 }
 298         }
 299         if (change) {
 300                 mlx4_unregister_device(dev);
 301                 for (port = 1; port <= dev->caps.num_ports; port++) {
 302                         mlx4_CLOSE_PORT(dev, port);
 303                         err = mlx4_SET_PORT(dev, port);
 304                         if (err) {
 305                                 mlx4_err(dev, "Failed to set port %d, "
 306                                               "aborting\n", port);
 307                                 goto out;
 308                         }
 309                 }
 310                 mlx4_set_port_mask(dev);
 311                 err = mlx4_register_device(dev);
 312         }
 313
 314 out:
 315         return err;
 316 }
 317
 318 static ssize_t show_port_type(struct device *dev,
 319                               struct device_attribute *attr,
 320                               char *buf)
 321 {
 322         struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
 323                                                    port_attr);
 324         struct mlx4_dev *mdev = info->dev;
 325         char type[8];
 326
 327         sprintf(type, "%s",
 328                 (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_IB) ?
 329                 "ib" : "eth");
 330         if (mdev->caps.possible_type[info->port] == MLX4_PORT_TYPE_AUTO)
 331                 sprintf(buf, "auto (%s)\n", type);
 332         else
 333                 sprintf(buf, "%s\n", type);
 334
 335         return strlen(buf);
 336 }
 337
 338 static ssize_t set_port_type(struct device *dev,
 339                              struct device_attribute *attr,
 340                              const char *buf, size_t count)
 341 {
 342         struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
 343                                                    port_attr);
 344         struct mlx4_dev *mdev = info->dev;
 345         struct mlx4_priv *priv = mlx4_priv(mdev);
 346         enum mlx4_port_type types[MLX4_MAX_PORTS];
 347         enum mlx4_port_type new_types[MLX4_MAX_PORTS];
 348         int i;
 349         int err = 0;
 350
 351         if (!strcmp(buf, "ib\n"))
 352                 info->tmp_type = MLX4_PORT_TYPE_IB;
 353         else if (!strcmp(buf, "eth\n"))
 354                 info->tmp_type = MLX4_PORT_TYPE_ETH;
 355         else if (!strcmp(buf, "auto\n"))
 356                 info->tmp_type = MLX4_PORT_TYPE_AUTO;
 357         else {
 358                 mlx4_err(mdev, "%s is not supported port type\n", buf);
 359                 return -EINVAL;
 360         }
 361
 362         mlx4_stop_sense(mdev);
 363         mutex_lock(&priv->port_mutex);
 364         /* Possible type is always the one that was delivered */
 365         mdev->caps.possible_type[info->port] = info->tmp_type;
 366
 367         for (i = 0; i < mdev->caps.num_ports; i++) {
 368                 types[i] = priv->port[i+1].tmp_type ? priv->port[i+1].tmp_type :
 369                                         mdev->caps.possible_type[i+1];
 370                 if (types[i] == MLX4_PORT_TYPE_AUTO)
 371                         types[i] = mdev->caps.port_type[i+1];
 372         }
 373
 374         if (!(mdev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP)) {
 375                 for (i = 1; i <= mdev->caps.num_ports; i++) {
 376                         if (mdev->caps.possible_type[i] == MLX4_PORT_TYPE_AUTO) {
 377                                 mdev->caps.possible_type[i] = mdev->caps.port_type[i];
 378                                 err = -EINVAL;
 379                         }
 380                 }
 381         }
 382         if (err) {
 383                 mlx4_err(mdev, "Auto sensing is not supported on this HCA. "
 384                                "Set only 'eth' or 'ib' for both ports "
 385                                "(should be the same)\n");
 386                 goto out;
 387         }
 388
 389         mlx4_do_sense_ports(mdev, new_types, types);
 390
 391         err = mlx4_check_port_params(mdev, new_types);
 392         if (err)
 393                 goto out;
 394
 395         /* We are about to apply the changes after the configuration
 396          * was verified, no need to remember the temporary types
 397          * any more */
 398         for (i = 0; i < mdev->caps.num_ports; i++)
 399                 priv->port[i + 1].tmp_type = 0;
 400
 401         err = mlx4_change_port_types(mdev, new_types);
 402
 403 out:
 404         mlx4_start_sense(mdev);
 405         mutex_unlock(&priv->port_mutex);
 406         return err ? err : count;
 407 }
 408
 409 static int mlx4_load_fw(struct mlx4_dev *dev)
 410 {
 411         struct mlx4_priv *priv = mlx4_priv(dev);
 412         int err;
 413
 414         priv->fw.fw_icm = mlx4_alloc_icm(dev, priv->fw.fw_pages,
 415                                          GFP_HIGHUSER | __GFP_NOWARN, 0);
 416         if (!priv->fw.fw_icm) {
 417                 mlx4_err(dev, "Couldn't allocate FW area, aborting.\n");
 418                 return -ENOMEM;
 419         }
 420
 421         err = mlx4_MAP_FA(dev, priv->fw.fw_icm);
 422         if (err) {
 423                 mlx4_err(dev, "MAP_FA command failed, aborting.\n");
 424                 goto err_free;
 425         }
 426
 427         err = mlx4_RUN_FW(dev);
 428         if (err) {
 429                 mlx4_err(dev, "RUN_FW command failed, aborting.\n");
 430                 goto err_unmap_fa;
 431         }
 432
 433         return 0;
 434
 435 err_unmap_fa:
 436         mlx4_UNMAP_FA(dev);
 437
 438 err_free:
 439         mlx4_free_icm(dev, priv->fw.fw_icm, 0);
 440         return err;
 441 }
 442
 443 static int mlx4_init_cmpt_table(struct mlx4_dev *dev, u64 cmpt_base,
 444                                 int cmpt_entry_sz)
 445 {
 446         struct mlx4_priv *priv = mlx4_priv(dev);
 447         int err;
 448
 449         err = mlx4_init_icm_table(dev, &priv->qp_table.cmpt_table,
 450                                   cmpt_base +
 451                                   ((u64) (MLX4_CMPT_TYPE_QP *
 452                                           cmpt_entry_sz) << MLX4_CMPT_SHIFT),
 453                                   cmpt_entry_sz, dev->caps.num_qps,
 454                                   dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
 455                                   0, 0);
 456         if (err)
 457                 goto err;
 458
 459         err = mlx4_init_icm_table(dev, &priv->srq_table.cmpt_table,
 460                                   cmpt_base +
 461                                   ((u64) (MLX4_CMPT_TYPE_SRQ *
 462                                           cmpt_entry_sz) << MLX4_CMPT_SHIFT),
 463                                   cmpt_entry_sz, dev->caps.num_srqs,
 464                                   dev->caps.reserved_srqs, 0, 0);
 465         if (err)
 466                 goto err_qp;
 467
 468         err = mlx4_init_icm_table(dev, &priv->cq_table.cmpt_table,
 469                                   cmpt_base +
 470                                   ((u64) (MLX4_CMPT_TYPE_CQ *
 471                                           cmpt_entry_sz) << MLX4_CMPT_SHIFT),
 472                                   cmpt_entry_sz, dev->caps.num_cqs,
 473                                   dev->caps.reserved_cqs, 0, 0);
 474         if (err)
 475                 goto err_srq;
 476
 477         err = mlx4_init_icm_table(dev, &priv->eq_table.cmpt_table,
 478                                   cmpt_base +
 479                                   ((u64) (MLX4_CMPT_TYPE_EQ *
 480                                           cmpt_entry_sz) << MLX4_CMPT_SHIFT),
 481                                   cmpt_entry_sz,
 482                                   dev->caps.num_eqs, dev->caps.num_eqs, 0, 0);
 483         if (err)
 484                 goto err_cq;
 485
 486         return 0;
 487
 488 err_cq:
 489         mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
 490
 491 err_srq:
 492         mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
 493
 494 err_qp:
 495         mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
 496
 497 err:
 498         return err;
 499 }
 500
 501 static int mlx4_init_icm(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap,
 502                          struct mlx4_init_hca_param *init_hca, u64 icm_size)
 503 {
 504         struct mlx4_priv *priv = mlx4_priv(dev);
 505         u64 aux_pages;
 506         int err;
 507
 508         err = mlx4_SET_ICM_SIZE(dev, icm_size, &aux_pages);
 509         if (err) {
 510                 mlx4_err(dev, "SET_ICM_SIZE command failed, aborting.\n");
 511                 return err;
 512         }
 513
 514         mlx4_dbg(dev, "%lld KB of HCA context requires %lld KB aux memory.\n",
 515                  (unsigned long long) icm_size >> 10,
 516                  (unsigned long long) aux_pages << 2);
 517
 518         priv->fw.aux_icm = mlx4_alloc_icm(dev, aux_pages,
 519                                           GFP_HIGHUSER | __GFP_NOWARN, 0);
 520         if (!priv->fw.aux_icm) {
 521                 mlx4_err(dev, "Couldn't allocate aux memory, aborting.\n");
 522                 return -ENOMEM;
 523         }
 524
 525         err = mlx4_MAP_ICM_AUX(dev, priv->fw.aux_icm);
 526         if (err) {
 527                 mlx4_err(dev, "MAP_ICM_AUX command failed, aborting.\n");
 528                 goto err_free_aux;
 529         }
 530
 531         err = mlx4_init_cmpt_table(dev, init_hca->cmpt_base, dev_cap->cmpt_entry_sz);
 532         if (err) {
 533                 mlx4_err(dev, "Failed to map cMPT context memory, aborting.\n");
 534                 goto err_unmap_aux;
 535         }
 536
 537         err = mlx4_init_icm_table(dev, &priv->eq_table.table,
 538                                   init_hca->eqc_base, dev_cap->eqc_entry_sz,
 539                                   dev->caps.num_eqs, dev->caps.num_eqs,
 540                                   0, 0);
 541         if (err) {
 542                 mlx4_err(dev, "Failed to map EQ context memory, aborting.\n");
 543                 goto err_unmap_cmpt;
 544         }
 545
 546         /*
 547          * Reserved MTT entries must be aligned up to a cacheline
 548          * boundary, since the FW will write to them, while the driver
 549          * writes to all other MTT entries. (The variable
 550          * dev->caps.mtt_entry_sz below is really the MTT segment
 551          * size, not the raw entry size)
 552          */
 553         dev->caps.reserved_mtts =
 554                 ALIGN(dev->caps.reserved_mtts * dev->caps.mtt_entry_sz,
 555                       dma_get_cache_alignment()) / dev->caps.mtt_entry_sz;
 556
 557         err = mlx4_init_icm_table(dev, &priv->mr_table.mtt_table,
 558                                   init_hca->mtt_base,
 559                                   dev->caps.mtt_entry_sz,
 560                                   dev->caps.num_mtt_segs,
 561                                   dev->caps.reserved_mtts, 1, 0);
 562         if (err) {
 563                 mlx4_err(dev, "Failed to map MTT context memory, aborting.\n");
 564                 goto err_unmap_eq;
 565         }
 566
 567         err = mlx4_init_icm_table(dev, &priv->mr_table.dmpt_table,
 568                                   init_hca->dmpt_base,
 569                                   dev_cap->dmpt_entry_sz,
 570                                   dev->caps.num_mpts,
 571                                   dev->caps.reserved_mrws, 1, 1);
 572         if (err) {
 573                 mlx4_err(dev, "Failed to map dMPT context memory, aborting.\n");
 574                 goto err_unmap_mtt;
 575         }
 576
 577         err = mlx4_init_icm_table(dev, &priv->qp_table.qp_table,
 578                                   init_hca->qpc_base,
 579                                   dev_cap->qpc_entry_sz,
 580                                   dev->caps.num_qps,
 581                                   dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
 582                                   0, 0);
 583         if (err) {
 584                 mlx4_err(dev, "Failed to map QP context memory, aborting.\n");
 585                 goto err_unmap_dmpt;
 586         }
 587
 588         err = mlx4_init_icm_table(dev, &priv->qp_table.auxc_table,
 589                                   init_hca->auxc_base,
 590                                   dev_cap->aux_entry_sz,
 591                                   dev->caps.num_qps,
 592                                   dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
 593                                   0, 0);
 594         if (err) {
 595                 mlx4_err(dev, "Failed to map AUXC context memory, aborting.\n");
 596                 goto err_unmap_qp;
 597         }
 598
 599         err = mlx4_init_icm_table(dev, &priv->qp_table.altc_table,
 600                                   init_hca->altc_base,
 601                                   dev_cap->altc_entry_sz,
 602                                   dev->caps.num_qps,
 603                                   dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
 604                                   0, 0);
 605         if (err) {
 606                 mlx4_err(dev, "Failed to map ALTC context memory, aborting.\n");
 607                 goto err_unmap_auxc;
 608         }
 609
 610         err = mlx4_init_icm_table(dev, &priv->qp_table.rdmarc_table,
 611                                   init_hca->rdmarc_base,
 612                                   dev_cap->rdmarc_entry_sz << priv->qp_table.rdmarc_shift,
 613                                   dev->caps.num_qps,
 614                                   dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
 615                                   0, 0);
 616         if (err) {
 617                 mlx4_err(dev, "Failed to map RDMARC context memory, aborting\n");
 618                 goto err_unmap_altc;
 619         }
 620
 621         err = mlx4_init_icm_table(dev, &priv->cq_table.table,
 622                                   init_hca->cqc_base,
 623                                   dev_cap->cqc_entry_sz,
 624                                   dev->caps.num_cqs,
 625                                   dev->caps.reserved_cqs, 0, 0);
 626         if (err) {
 627                 mlx4_err(dev, "Failed to map CQ context memory, aborting.\n");
 628                 goto err_unmap_rdmarc;
 629         }
 630
 631         err = mlx4_init_icm_table(dev, &priv->srq_table.table,
 632                                   init_hca->srqc_base,
 633                                   dev_cap->srq_entry_sz,
 634                                   dev->caps.num_srqs,
 635                                   dev->caps.reserved_srqs, 0, 0);
 636         if (err) {
 637                 mlx4_err(dev, "Failed to map SRQ context memory, aborting.\n");
 638                 goto err_unmap_cq;
 639         }
 640
 641         /*
 642          * It's not strictly required, but for simplicity just map the
 643          * whole multicast group table now.  The table isn't very big
 644          * and it's a lot easier than trying to track ref counts.
 645          */
 646         err = mlx4_init_icm_table(dev, &priv->mcg_table.table,
 647                                   init_hca->mc_base, MLX4_MGM_ENTRY_SIZE,
 648                                   dev->caps.num_mgms + dev->caps.num_amgms,
 649                                   dev->caps.num_mgms + dev->caps.num_amgms,
 650                                   0, 0);
 651         if (err) {
 652                 mlx4_err(dev, "Failed to map MCG context memory, aborting.\n");
 653                 goto err_unmap_srq;
 654         }
 655
 656         return 0;
 657
 658 err_unmap_srq:
 659         mlx4_cleanup_icm_table(dev, &priv->srq_table.table);
 660
 661 err_unmap_cq:
 662         mlx4_cleanup_icm_table(dev, &priv->cq_table.table);
 663
 664 err_unmap_rdmarc:
 665         mlx4_cleanup_icm_table(dev, &priv->qp_table.rdmarc_table);
 666
 667 err_unmap_altc:
 668         mlx4_cleanup_icm_table(dev, &priv->qp_table.altc_table);
 669
 670 err_unmap_auxc:
 671         mlx4_cleanup_icm_table(dev, &priv->qp_table.auxc_table);
 672
 673 err_unmap_qp:
 674         mlx4_cleanup_icm_table(dev, &priv->qp_table.qp_table);
 675
 676 err_unmap_dmpt:
 677         mlx4_cleanup_icm_table(dev, &priv->mr_table.dmpt_table);
 678
 679 err_unmap_mtt:
 680         mlx4_cleanup_icm_table(dev, &priv->mr_table.mtt_table);
 681
 682 err_unmap_eq:
 683         mlx4_cleanup_icm_table(dev, &priv->eq_table.table);
 684
 685 err_unmap_cmpt:
 686         mlx4_cleanup_icm_table(dev, &priv->eq_table.cmpt_table);
 687         mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
 688         mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
 689         mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
 690
 691 err_unmap_aux:
 692         mlx4_UNMAP_ICM_AUX(dev);
 693
 694 err_free_aux:
 695         mlx4_free_icm(dev, priv->fw.aux_icm, 0);
 696
 697         return err;
 698 }
 699
 700 static void mlx4_free_icms(struct mlx4_dev *dev)
 701 {
 702         struct mlx4_priv *priv = mlx4_priv(dev);
 703
 704         mlx4_cleanup_icm_table(dev, &priv->mcg_table.table);
 705         mlx4_cleanup_icm_table(dev, &priv->srq_table.table);
 706         mlx4_cleanup_icm_table(dev, &priv->cq_table.table);
 707         mlx4_cleanup_icm_table(dev, &priv->qp_table.rdmarc_table);
 708         mlx4_cleanup_icm_table(dev, &priv->qp_table.altc_table);
 709         mlx4_cleanup_icm_table(dev, &priv->qp_table.auxc_table);
 710         mlx4_cleanup_icm_table(dev, &priv->qp_table.qp_table);
 711         mlx4_cleanup_icm_table(dev, &priv->mr_table.dmpt_table);
 712         mlx4_cleanup_icm_table(dev, &priv->mr_table.mtt_table);
 713         mlx4_cleanup_icm_table(dev, &priv->eq_table.table);
 714         mlx4_cleanup_icm_table(dev, &priv->eq_table.cmpt_table);
 715         mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
 716         mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
 717         mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
 718
 719         mlx4_UNMAP_ICM_AUX(dev);
 720         mlx4_free_icm(dev, priv->fw.aux_icm, 0);
 721 }
 722
 723 static int map_bf_area(struct mlx4_dev *dev)
 724 {
 725         struct mlx4_priv *priv = mlx4_priv(dev);
 726         resource_size_t bf_start;
 727         resource_size_t bf_len;
 728         int err = 0;
 729
 730         bf_start = pci_resource_start(dev->pdev, 2) + (dev->caps.num_uars << PAGE_SHIFT);
 731         bf_len = pci_resource_len(dev->pdev, 2) - (dev->caps.num_uars << PAGE_SHIFT);
 732         priv->bf_mapping = io_mapping_create_wc(bf_start, bf_len);
 733         if (!priv->bf_mapping)
 734                 err = -ENOMEM;
 735
 736         return err;
 737 }
 738
 739 static void unmap_bf_area(struct mlx4_dev *dev)
 740 {
 741         if (mlx4_priv(dev)->bf_mapping)
 742                 io_mapping_free(mlx4_priv(dev)->bf_mapping);
 743 }
 744
 745 static void mlx4_close_hca(struct mlx4_dev *dev)
 746 {
 747         unmap_bf_area(dev);
 748         mlx4_CLOSE_HCA(dev, 0);
 749         mlx4_free_icms(dev);
 750         mlx4_UNMAP_FA(dev);
 751         mlx4_free_icm(dev, mlx4_priv(dev)->fw.fw_icm, 0);
 752 }
 753
 754 static int mlx4_init_hca(struct mlx4_dev *dev)
 755 {
 756         struct mlx4_priv          *priv = mlx4_priv(dev);
 757         struct mlx4_adapter        adapter;
 758         struct mlx4_dev_cap        dev_cap;
 759         struct mlx4_mod_stat_cfg   mlx4_cfg;
 760         struct mlx4_profile        profile;
 761         struct mlx4_init_hca_param init_hca;
 762         u64 icm_size;
 763         int err;
 764
 765         err = mlx4_QUERY_FW(dev);
 766         if (err) {
 767                 if (err == -EACCES)
 768                         mlx4_info(dev, "non-primary physical function, skipping.\n");
 769                 else
 770                         mlx4_err(dev, "QUERY_FW command failed, aborting.\n");
 771                 return err;
 772         }
 773
 774         err = mlx4_load_fw(dev);
 775         if (err) {
 776                 mlx4_err(dev, "Failed to start FW, aborting.\n");
 777                 return err;
 778         }
 779
 780         mlx4_cfg.log_pg_sz_m = 1;
 781         mlx4_cfg.log_pg_sz = 0;
 782         err = mlx4_MOD_STAT_CFG(dev, &mlx4_cfg);
 783         if (err)
 784                 mlx4_warn(dev, "Failed to override log_pg_sz parameter\n");
 785
 786         err = mlx4_dev_cap(dev, &dev_cap);
 787         if (err) {
 788                 mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
 789                 goto err_stop_fw;
 790         }
 791
 792         profile = default_profile;
 793
 794         icm_size = mlx4_make_profile(dev, &profile, &dev_cap, &init_hca);
 795         if ((long long) icm_size < 0) {
 796                 err = icm_size;
 797                 goto err_stop_fw;
 798         }
 799
 800         if (map_bf_area(dev))
 801                 mlx4_dbg(dev, "Failed to map blue flame area\n");
 802
 803         init_hca.log_uar_sz = ilog2(dev->caps.num_uars);
 804
 805         err = mlx4_init_icm(dev, &dev_cap, &init_hca, icm_size);
 806         if (err)
 807                 goto err_stop_fw;
 808
 809         err = mlx4_INIT_HCA(dev, &init_hca);
 810         if (err) {
 811                 mlx4_err(dev, "INIT_HCA command failed, aborting.\n");
 812                 goto err_free_icm;
 813         }
 814
 815         err = mlx4_QUERY_ADAPTER(dev, &adapter);
 816         if (err) {
 817                 mlx4_err(dev, "QUERY_ADAPTER command failed, aborting.\n");
 818                 goto err_close;
 819         }
 820
 821         priv->eq_table.inta_pin = adapter.inta_pin;
 822         memcpy(dev->board_id, adapter.board_id, sizeof dev->board_id);
 823
 824         return 0;
 825
 826 err_close:
 827         mlx4_CLOSE_HCA(dev, 0);
 828
 829 err_free_icm:
 830         mlx4_free_icms(dev);
 831
 832 err_stop_fw:
 833         unmap_bf_area(dev);
 834         mlx4_UNMAP_FA(dev);
 835         mlx4_free_icm(dev, priv->fw.fw_icm, 0);
 836
 837         return err;
 838 }
 839
 840 static int mlx4_init_counters_table(struct mlx4_dev *dev)
 841 {
 842         struct mlx4_priv *priv = mlx4_priv(dev);
 843         int nent;
 844
 845         if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS))
 846                 return -ENOENT;
 847
 848         nent = dev->caps.max_counters;
 849         return mlx4_bitmap_init(&priv->counters_bitmap, nent, nent - 1, 0, 0);
 850 }
 851
 852 static void mlx4_cleanup_counters_table(struct mlx4_dev *dev)
 853 {
 854         mlx4_bitmap_cleanup(&mlx4_priv(dev)->counters_bitmap);
 855 }
 856
 857 int mlx4_counter_alloc(struct mlx4_dev *dev, u32 *idx)
 858 {
 859         struct mlx4_priv *priv = mlx4_priv(dev);
 860
 861         if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS))
 862                 return -ENOENT;
 863
 864         *idx = mlx4_bitmap_alloc(&priv->counters_bitmap);
 865         if (*idx == -1)
 866                 return -ENOMEM;
 867
 868         return 0;
 869 }
 870 EXPORT_SYMBOL_GPL(mlx4_counter_alloc);
 871
 872 void mlx4_counter_free(struct mlx4_dev *dev, u32 idx)
 873 {
 874         mlx4_bitmap_free(&mlx4_priv(dev)->counters_bitmap, idx);
 875         return;
 876 }
 877 EXPORT_SYMBOL_GPL(mlx4_counter_free);
 878
 879 static int mlx4_setup_hca(struct mlx4_dev *dev)
 880 {
 881         struct mlx4_priv *priv = mlx4_priv(dev);
 882         int err;
 883         int port;
 884         __be32 ib_port_default_caps;
 885
 886         err = mlx4_init_uar_table(dev);
 887         if (err) {
 888                 mlx4_err(dev, "Failed to initialize "
 889                          "user access region table, aborting.\n");
 890                 return err;
 891         }
 892
 893         err = mlx4_uar_alloc(dev, &priv->driver_uar);
 894         if (err) {
 895                 mlx4_err(dev, "Failed to allocate driver access region, "
 896                          "aborting.\n");
 897                 goto err_uar_table_free;
 898         }
 899
 900         priv->kar = ioremap((phys_addr_t) priv->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
 901         if (!priv->kar) {
 902                 mlx4_err(dev, "Couldn't map kernel access region, "
 903                          "aborting.\n");
 904                 err = -ENOMEM;
 905                 goto err_uar_free;
 906         }
 907
 908         err = mlx4_init_pd_table(dev);
 909         if (err) {
 910                 mlx4_err(dev, "Failed to initialize "
 911                          "protection domain table, aborting.\n");
 912                 goto err_kar_unmap;
 913         }
 914
 915         err = mlx4_init_mr_table(dev);
 916         if (err) {
 917                 mlx4_err(dev, "Failed to initialize "
 918                          "memory region table, aborting.\n");
 919                 goto err_pd_table_free;
 920         }
 921
 922         err = mlx4_init_eq_table(dev);
 923         if (err) {
 924                 mlx4_err(dev, "Failed to initialize "
 925                          "event queue table, aborting.\n");
 926                 goto err_mr_table_free;
 927         }
 928
 929         err = mlx4_cmd_use_events(dev);
 930         if (err) {
 931                 mlx4_err(dev, "Failed to switch to event-driven "
 932                          "firmware commands, aborting.\n");
 933                 goto err_eq_table_free;
 934         }
 935
 936         err = mlx4_NOP(dev);
 937         if (err) {
 938                 if (dev->flags & MLX4_FLAG_MSI_X) {
 939                         mlx4_warn(dev, "NOP command failed to generate MSI-X "
 940                                   "interrupt IRQ %d).\n",
 941                                   priv->eq_table.eq[dev->caps.num_comp_vectors].irq);
 942                         mlx4_warn(dev, "Trying again without MSI-X.\n");
 943                 } else {
 944                         mlx4_err(dev, "NOP command failed to generate interrupt "
 945                                  "(IRQ %d), aborting.\n",
 946                                  priv->eq_table.eq[dev->caps.num_comp_vectors].irq);
 947                         mlx4_err(dev, "BIOS or ACPI interrupt routing problem?\n");
 948                 }
 949
 950                 goto err_cmd_poll;
 951         }
 952
 953         mlx4_dbg(dev, "NOP command IRQ test passed\n");
 954
 955         err = mlx4_init_cq_table(dev);
 956         if (err) {
 957                 mlx4_err(dev, "Failed to initialize "
 958                          "completion queue table, aborting.\n");
 959                 goto err_cmd_poll;
 960         }
 961
 962         err = mlx4_init_srq_table(dev);
 963         if (err) {
 964                 mlx4_err(dev, "Failed to initialize "
 965                          "shared receive queue table, aborting.\n");
 966                 goto err_cq_table_free;
 967         }
 968
 969         err = mlx4_init_qp_table(dev);
 970         if (err) {
 971                 mlx4_err(dev, "Failed to initialize "
 972                          "queue pair table, aborting.\n");
 973                 goto err_srq_table_free;
 974         }
 975
 976         err = mlx4_init_mcg_table(dev);
 977         if (err) {
 978                 mlx4_err(dev, "Failed to initialize "
 979                          "multicast group table, aborting.\n");
 980                 goto err_qp_table_free;
 981         }
 982
 983         err = mlx4_init_counters_table(dev);
 984         if (err && err != -ENOENT) {
 985                 mlx4_err(dev, "Failed to initialize counters table, aborting.\n");
 986                 goto err_counters_table_free;
 987         }
 988
 989         for (port = 1; port <= dev->caps.num_ports; port++) {
 990                 enum mlx4_port_type port_type = 0;
 991                 mlx4_SENSE_PORT(dev, port, &port_type);
 992                 if (port_type)
 993                         dev->caps.port_type[port] = port_type;
 994                 ib_port_default_caps = 0;
 995                 err = mlx4_get_port_ib_caps(dev, port, &ib_port_default_caps);
 996                 if (err)
 997                         mlx4_warn(dev, "failed to get port %d default "
 998                                   "ib capabilities (%d). Continuing with "
 999                                   "caps = 0\n", port, err);
1000                 dev->caps.ib_port_def_cap[port] = ib_port_default_caps;
1001                 err = mlx4_SET_PORT(dev, port);
1002                 if (err) {
1003                         mlx4_err(dev, "Failed to set port %d, aborting\n",
1004                                 port);
1005                         goto err_mcg_table_free;
1006                 }
1007         }
1008         mlx4_set_port_mask(dev);
1009
1010         return 0;
1011
1012 err_mcg_table_free:
1013         mlx4_cleanup_mcg_table(dev);
1014
1015 err_counters_table_free:
1016         mlx4_cleanup_counters_table(dev);
1017
1018 err_qp_table_free:
1019         mlx4_cleanup_qp_table(dev);
1020
1021 err_srq_table_free:
1022         mlx4_cleanup_srq_table(dev);
1023
1024 err_cq_table_free:
1025         mlx4_cleanup_cq_table(dev);
1026
1027 err_cmd_poll:
1028         mlx4_cmd_use_polling(dev);
1029
1030 err_eq_table_free:
1031         mlx4_cleanup_eq_table(dev);
1032
1033 err_mr_table_free:
1034         mlx4_cleanup_mr_table(dev);
1035
1036 err_pd_table_free:
1037         mlx4_cleanup_pd_table(dev);
1038
1039 err_kar_unmap:
1040         iounmap(priv->kar);
1041
1042 err_uar_free:
1043         mlx4_uar_free(dev, &priv->driver_uar);
1044
1045 err_uar_table_free:
1046         mlx4_cleanup_uar_table(dev);
1047         return err;
1048 }
1049
1050 static void mlx4_enable_msi_x(struct mlx4_dev *dev)
1051 {
1052         struct mlx4_priv *priv = mlx4_priv(dev);
1053         struct msix_entry *entries;
1054         int nreq = min_t(int, dev->caps.num_ports *
1055                          min_t(int, num_online_cpus() + 1, MAX_MSIX_P_PORT)
1056                                 + MSIX_LEGACY_SZ, MAX_MSIX);
1057         int err;
1058         int i;
1059
1060         if (msi_x) {
1061                 nreq = min_t(int, dev->caps.num_eqs - dev->caps.reserved_eqs,
1062                              nreq);
1063                 entries = kcalloc(nreq, sizeof *entries, GFP_KERNEL);
1064                 if (!entries)
1065                         goto no_msi;
1066
1067                 for (i = 0; i < nreq; ++i)
1068                         entries[i].entry = i;
1069
1070         retry:
1071                 err = pci_enable_msix(dev->pdev, entries, nreq);
1072                 if (err) {
1073                         /* Try again if at least 2 vectors are available */
1074                         if (err > 1) {
1075                                 mlx4_info(dev, "Requested %d vectors, "
1076                                           "but only %d MSI-X vectors available, "
1077                                           "trying again\n", nreq, err);
1078                                 nreq = err;
1079                                 goto retry;
1080                         }
1081                         kfree(entries);
1082                         goto no_msi;
1083                 }
1084
1085                 if (nreq <
1086                     MSIX_LEGACY_SZ + dev->caps.num_ports * MIN_MSIX_P_PORT) {
1087                         /*Working in legacy mode , all EQ's shared*/
1088                         dev->caps.comp_pool           = 0;
1089                         dev->caps.num_comp_vectors = nreq - 1;
1090                 } else {
1091                         dev->caps.comp_pool           = nreq - MSIX_LEGACY_SZ;
1092                         dev->caps.num_comp_vectors = MSIX_LEGACY_SZ - 1;
1093                 }
1094                 for (i = 0; i < nreq; ++i)
1095                         priv->eq_table.eq[i].irq = entries[i].vector;
1096
1097                 dev->flags |= MLX4_FLAG_MSI_X;
1098
1099                 kfree(entries);
1100                 return;
1101         }
1102
1103 no_msi:
1104         dev->caps.num_comp_vectors = 1;
1105         dev->caps.comp_pool        = 0;
1106
1107         for (i = 0; i < 2; ++i)
1108                 priv->eq_table.eq[i].irq = dev->pdev->irq;
1109 }
1110
1111 static int mlx4_init_port_info(struct mlx4_dev *dev, int port)
1112 {
1113         struct mlx4_port_info *info = &mlx4_priv(dev)->port[port];
1114         int err = 0;
1115
1116         info->dev = dev;
1117         info->port = port;
1118         mlx4_init_mac_table(dev, &info->mac_table);
1119         mlx4_init_vlan_table(dev, &info->vlan_table);
1120
1121         sprintf(info->dev_name, "mlx4_port%d", port);
1122         info->port_attr.attr.name = info->dev_name;
1123         info->port_attr.attr.mode = S_IRUGO | S_IWUSR;
1124         info->port_attr.show      = show_port_type;
1125         info->port_attr.store     = set_port_type;
1126         sysfs_attr_init(&info->port_attr.attr);
1127
1128         err = device_create_file(&dev->pdev->dev, &info->port_attr);
1129         if (err) {
1130                 mlx4_err(dev, "Failed to create file for port %d\n", port);
1131                 info->port = -1;
1132         }
1133
1134         return err;
1135 }
1136
1137 static void mlx4_cleanup_port_info(struct mlx4_port_info *info)
1138 {
1139         if (info->port < 0)
1140                 return;
1141
1142         device_remove_file(&info->dev->pdev->dev, &info->port_attr);
1143 }
1144
1145 static int mlx4_init_steering(struct mlx4_dev *dev)
1146 {
1147         struct mlx4_priv *priv = mlx4_priv(dev);
1148         int num_entries = dev->caps.num_ports;
1149         int i, j;
1150
1151         priv->steer = kzalloc(sizeof(struct mlx4_steer) * num_entries, GFP_KERNEL);
1152         if (!priv->steer)
1153                 return -ENOMEM;
1154
1155         for (i = 0; i < num_entries; i++) {
1156                 for (j = 0; j < MLX4_NUM_STEERS; j++) {
1157                         INIT_LIST_HEAD(&priv->steer[i].promisc_qps[j]);
1158                         INIT_LIST_HEAD(&priv->steer[i].steer_entries[j]);
1159                 }
1160                 INIT_LIST_HEAD(&priv->steer[i].high_prios);
1161         }
1162         return 0;
1163 }
1164
1165 static void mlx4_clear_steering(struct mlx4_dev *dev)
1166 {
1167         struct mlx4_priv *priv = mlx4_priv(dev);
1168         struct mlx4_steer_index *entry, *tmp_entry;
1169         struct mlx4_promisc_qp *pqp, *tmp_pqp;
1170         int num_entries = dev->caps.num_ports;
1171         int i, j;
1172
1173         for (i = 0; i < num_entries; i++) {
1174                 for (j = 0; j < MLX4_NUM_STEERS; j++) {
1175                         list_for_each_entry_safe(pqp, tmp_pqp,
1176                                                  &priv->steer[i].promisc_qps[j],
1177                                                  list) {
1178                                 list_del(&pqp->list);
1179                                 kfree(pqp);
1180                         }
1181                         list_for_each_entry_safe(entry, tmp_entry,
1182                                                  &priv->steer[i].steer_entries[j],
1183                                                  list) {
1184                                 list_del(&entry->list);
1185                                 list_for_each_entry_safe(pqp, tmp_pqp,
1186                                                          &entry->duplicates,
1187                                                          list) {
1188                                         list_del(&pqp->list);
1189                                         kfree(pqp);
1190                                 }
1191                                 kfree(entry);
1192                         }
1193                 }
1194         }
1195         kfree(priv->steer);
1196 }
1197
1198 static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
1199 {
1200         struct mlx4_priv *priv;
1201         struct mlx4_dev *dev;
1202         int err;
1203         int port;
1204
1205         pr_info(DRV_NAME ": Initializing %s\n", pci_name(pdev));
1206
1207         err = pci_enable_device(pdev);
1208         if (err) {
1209                 dev_err(&pdev->dev, "Cannot enable PCI device, "
1210                         "aborting.\n");
1211                 return err;
1212         }
1213
1214         /*
1215          * Check for BARs.  We expect 0: 1MB
1216          */
1217         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) ||
1218             pci_resource_len(pdev, 0) != 1 << 20) {
1219                 dev_err(&pdev->dev, "Missing DCS, aborting.\n");
1220                 err = -ENODEV;
1221                 goto err_disable_pdev;
1222         }
1223         if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
1224                 dev_err(&pdev->dev, "Missing UAR, aborting.\n");
1225                 err = -ENODEV;
1226                 goto err_disable_pdev;
1227         }
1228
1229         err = pci_request_regions(pdev, DRV_NAME);
1230         if (err) {
1231                 dev_err(&pdev->dev, "Couldn't get PCI resources, aborting\n");
1232                 goto err_disable_pdev;
1233         }
1234
1235         pci_set_master(pdev);
1236
1237         err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
1238         if (err) {
1239                 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n");
1240                 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
1241                 if (err) {
1242                         dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n");
1243                         goto err_release_regions;
1244                 }
1245         }
1246         err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
1247         if (err) {
1248                 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit "
1249                          "consistent PCI DMA mask.\n");
1250                 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
1251                 if (err) {
1252                         dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
1253                                 "aborting.\n");
1254                         goto err_release_regions;
1255                 }
1256         }
1257
1258         /* Allow large DMA segments, up to the firmware limit of 1 GB */
1259         dma_set_max_seg_size(&pdev->dev, 1024 * 1024 * 1024);
1260
1261         priv = kzalloc(sizeof *priv, GFP_KERNEL);
1262         if (!priv) {
1263                 dev_err(&pdev->dev, "Device struct alloc failed, "
1264                         "aborting.\n");
1265                 err = -ENOMEM;
1266                 goto err_release_regions;
1267         }
1268
1269         dev       = &priv->dev;
1270         dev->pdev = pdev;
1271         INIT_LIST_HEAD(&priv->ctx_list);
1272         spin_lock_init(&priv->ctx_lock);
1273
1274         mutex_init(&priv->port_mutex);
1275
1276         INIT_LIST_HEAD(&priv->pgdir_list);
1277         mutex_init(&priv->pgdir_mutex);
1278
1279         INIT_LIST_HEAD(&priv->bf_list);
1280         mutex_init(&priv->bf_mutex);
1281
1282         dev->rev_id = pdev->revision;
1283
1284         /*
1285          * Now reset the HCA before we touch the PCI capabilities or
1286          * attempt a firmware command, since a boot ROM may have left
1287          * the HCA in an undefined state.
1288          */
1289         err = mlx4_reset(dev);
1290         if (err) {
1291                 mlx4_err(dev, "Failed to reset HCA, aborting.\n");
1292                 goto err_free_dev;
1293         }
1294
1295         if (mlx4_cmd_init(dev)) {
1296                 mlx4_err(dev, "Failed to init command interface, aborting.\n");
1297                 goto err_free_dev;
1298         }
1299
1300         err = mlx4_init_hca(dev);
1301         if (err)
1302                 goto err_cmd;
1303
1304         err = mlx4_alloc_eq_table(dev);
1305         if (err)
1306                 goto err_close;
1307
1308         priv->msix_ctl.pool_bm = 0;
1309         spin_lock_init(&priv->msix_ctl.pool_lock);
1310
1311         mlx4_enable_msi_x(dev);
1312
1313         err = mlx4_init_steering(dev);
1314         if (err)
1315                 goto err_free_eq;
1316
1317         err = mlx4_setup_hca(dev);
1318         if (err == -EBUSY && (dev->flags & MLX4_FLAG_MSI_X)) {
1319                 dev->flags &= ~MLX4_FLAG_MSI_X;
1320                 pci_disable_msix(pdev);
1321                 err = mlx4_setup_hca(dev);
1322         }
1323
1324         if (err)
1325                 goto err_steer;
1326
1327         for (port = 1; port <= dev->caps.num_ports; port++) {
1328                 err = mlx4_init_port_info(dev, port);
1329                 if (err)
1330                         goto err_port;
1331         }
1332
1333         err = mlx4_register_device(dev);
1334         if (err)
1335                 goto err_port;
1336
1337         mlx4_sense_init(dev);
1338         mlx4_start_sense(dev);
1339
1340         pci_set_drvdata(pdev, dev);
1341
1342         return 0;
1343
1344 err_port:
1345         for (--port; port >= 1; --port)
1346                 mlx4_cleanup_port_info(&priv->port[port]);
1347
1348         mlx4_cleanup_counters_table(dev);
1349         mlx4_cleanup_mcg_table(dev);
1350         mlx4_cleanup_qp_table(dev);
1351         mlx4_cleanup_srq_table(dev);
1352         mlx4_cleanup_cq_table(dev);
1353         mlx4_cmd_use_polling(dev);
1354         mlx4_cleanup_eq_table(dev);
1355         mlx4_cleanup_mr_table(dev);
1356         mlx4_cleanup_pd_table(dev);
1357         mlx4_cleanup_uar_table(dev);
1358
1359 err_steer:
1360         mlx4_clear_steering(dev);
1361
1362 err_free_eq:
1363         mlx4_free_eq_table(dev);
1364
1365 err_close:
1366         if (dev->flags & MLX4_FLAG_MSI_X)
1367                 pci_disable_msix(pdev);
1368
1369         mlx4_close_hca(dev);
1370
1371 err_cmd:
1372         mlx4_cmd_cleanup(dev);
1373
1374 err_free_dev:
1375         kfree(priv);
1376
1377 err_release_regions:
1378         pci_release_regions(pdev);
1379
1380 err_disable_pdev:
1381         pci_disable_device(pdev);
1382         pci_set_drvdata(pdev, NULL);
1383         return err;
1384 }
1385
1386 static int __devinit mlx4_init_one(struct pci_dev *pdev,
1387                                    const struct pci_device_id *id)
1388 {
1389         printk_once(KERN_INFO "%s", mlx4_version);
1390
1391         return __mlx4_init_one(pdev, id);
1392 }
1393
1394 static void mlx4_remove_one(struct pci_dev *pdev)
1395 {
1396         struct mlx4_dev  *dev  = pci_get_drvdata(pdev);
1397         struct mlx4_priv *priv = mlx4_priv(dev);
1398         int p;
1399
1400         if (dev) {
1401                 mlx4_stop_sense(dev);
1402                 mlx4_unregister_device(dev);
1403
1404                 for (p = 1; p <= dev->caps.num_ports; p++) {
1405                         mlx4_cleanup_port_info(&priv->port[p]);
1406                         mlx4_CLOSE_PORT(dev, p);
1407                 }
1408
1409                 mlx4_cleanup_counters_table(dev);
1410                 mlx4_cleanup_mcg_table(dev);
1411                 mlx4_cleanup_qp_table(dev);
1412                 mlx4_cleanup_srq_table(dev);
1413                 mlx4_cleanup_cq_table(dev);
1414                 mlx4_cmd_use_polling(dev);
1415                 mlx4_cleanup_eq_table(dev);
1416                 mlx4_cleanup_mr_table(dev);
1417                 mlx4_cleanup_pd_table(dev);
1418
1419                 iounmap(priv->kar);
1420                 mlx4_uar_free(dev, &priv->driver_uar);
1421                 mlx4_cleanup_uar_table(dev);
1422                 mlx4_clear_steering(dev);
1423                 mlx4_free_eq_table(dev);
1424                 mlx4_close_hca(dev);
1425                 mlx4_cmd_cleanup(dev);
1426
1427                 if (dev->flags & MLX4_FLAG_MSI_X)
1428                         pci_disable_msix(pdev);
1429
1430                 kfree(priv);
1431                 pci_release_regions(pdev);
1432                 pci_disable_device(pdev);
1433                 pci_set_drvdata(pdev, NULL);
1434         }
1435 }
1436
1437 int mlx4_restart_one(struct pci_dev *pdev)
1438 {
1439         mlx4_remove_one(pdev);
1440         return __mlx4_init_one(pdev, NULL);
1441 }
1442
1443 static DEFINE_PCI_DEVICE_TABLE(mlx4_pci_table) = {
1444         { PCI_VDEVICE(MELLANOX, 0x6340) }, /* MT25408 "Hermon" SDR */
1445         { PCI_VDEVICE(MELLANOX, 0x634a) }, /* MT25408 "Hermon" DDR */
1446         { PCI_VDEVICE(MELLANOX, 0x6354) }, /* MT25408 "Hermon" QDR */
1447         { PCI_VDEVICE(MELLANOX, 0x6732) }, /* MT25408 "Hermon" DDR PCIe gen2 */
1448         { PCI_VDEVICE(MELLANOX, 0x673c) }, /* MT25408 "Hermon" QDR PCIe gen2 */
1449         { PCI_VDEVICE(MELLANOX, 0x6368) }, /* MT25408 "Hermon" EN 10GigE */
1450         { PCI_VDEVICE(MELLANOX, 0x6750) }, /* MT25408 "Hermon" EN 10GigE PCIe gen2 */
1451         { PCI_VDEVICE(MELLANOX, 0x6372) }, /* MT25458 ConnectX EN 10GBASE-T 10GigE */
1452         { PCI_VDEVICE(MELLANOX, 0x675a) }, /* MT25458 ConnectX EN 10GBASE-T+Gen2 10GigE */
1453         { PCI_VDEVICE(MELLANOX, 0x6764) }, /* MT26468 ConnectX EN 10GigE PCIe gen2*/
1454         { PCI_VDEVICE(MELLANOX, 0x6746) }, /* MT26438 ConnectX EN 40GigE PCIe gen2 5GT/s */
1455         { PCI_VDEVICE(MELLANOX, 0x676e) }, /* MT26478 ConnectX2 40GigE PCIe gen2 */
1456         { PCI_VDEVICE(MELLANOX, 0x1002) }, /* MT25400 Family [ConnectX-2 Virtual Function] */
1457         { PCI_VDEVICE(MELLANOX, 0x1003) }, /* MT27500 Family [ConnectX-3] */
1458         { PCI_VDEVICE(MELLANOX, 0x1004) }, /* MT27500 Family [ConnectX-3 Virtual Function] */
1459         { PCI_VDEVICE(MELLANOX, 0x1005) }, /* MT27510 Family */
1460         { PCI_VDEVICE(MELLANOX, 0x1006) }, /* MT27511 Family */
1461         { PCI_VDEVICE(MELLANOX, 0x1007) }, /* MT27520 Family */
1462         { PCI_VDEVICE(MELLANOX, 0x1008) }, /* MT27521 Family */
1463         { PCI_VDEVICE(MELLANOX, 0x1009) }, /* MT27530 Family */
1464         { PCI_VDEVICE(MELLANOX, 0x100a) }, /* MT27531 Family */
1465         { PCI_VDEVICE(MELLANOX, 0x100b) }, /* MT27540 Family */
1466         { PCI_VDEVICE(MELLANOX, 0x100c) }, /* MT27541 Family */
1467         { PCI_VDEVICE(MELLANOX, 0x100d) }, /* MT27550 Family */
1468         { PCI_VDEVICE(MELLANOX, 0x100e) }, /* MT27551 Family */
1469         { PCI_VDEVICE(MELLANOX, 0x100f) }, /* MT27560 Family */
1470         { PCI_VDEVICE(MELLANOX, 0x1010) }, /* MT27561 Family */
1471         { 0, }
1472 };
1473
1474 MODULE_DEVICE_TABLE(pci, mlx4_pci_table);
1475
1476 static struct pci_driver mlx4_driver = {
1477         .name           = DRV_NAME,
1478         .id_table       = mlx4_pci_table,
1479         .probe          = mlx4_init_one,
1480         .remove         = __devexit_p(mlx4_remove_one)
1481 };
1482
1483 static int __init mlx4_verify_params(void)
1484 {
1485         if ((log_num_mac < 0) || (log_num_mac > 7)) {
1486                 pr_warning("mlx4_core: bad num_mac: %d\n", log_num_mac);
1487                 return -1;
1488         }
1489
1490         if ((log_num_vlan < 0) || (log_num_vlan > 7)) {
1491                 pr_warning("mlx4_core: bad num_vlan: %d\n", log_num_vlan);
1492                 return -1;
1493         }
1494
1495         if ((log_mtts_per_seg < 1) || (log_mtts_per_seg > 7)) {
1496                 pr_warning("mlx4_core: bad log_mtts_per_seg: %d\n", log_mtts_per_seg);
1497                 return -1;
1498         }
1499
1500         return 0;
1501 }
1502
1503 static int __init mlx4_init(void)
1504 {
1505         int ret;
1506
1507         if (mlx4_verify_params())
1508                 return -EINVAL;
1509
1510         mlx4_catas_init();
1511
1512         mlx4_wq = create_singlethread_workqueue("mlx4");
1513         if (!mlx4_wq)
1514                 return -ENOMEM;
1515
1516         ret = pci_register_driver(&mlx4_driver);
1517         return ret < 0 ? ret : 0;
1518 }
1519
1520 static void __exit mlx4_cleanup(void)
1521 {
1522         pci_unregister_driver(&mlx4_driver);
1523         destroy_workqueue(mlx4_wq);
1524 }
1525
1526 module_init(mlx4_init);
1527 module_exit(mlx4_cleanup);