drivers/net/ethernet/mellanox/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 #include <linux/delay.h>
  44 #include <linux/netdevice.h>
  45
  46 #include <linux/mlx4/device.h>
  47 #include <linux/mlx4/doorbell.h>
  48
  49 #include "mlx4.h"
  50 #include "fw.h"
  51 #include "icm.h"
  52
  53 MODULE_AUTHOR("Roland Dreier");
  54 MODULE_DESCRIPTION("Mellanox ConnectX HCA low-level driver");
  55 MODULE_LICENSE("Dual BSD/GPL");
  56 MODULE_VERSION(DRV_VERSION);
  57
  58 struct workqueue_struct *mlx4_wq;
  59
  60 #ifdef CONFIG_MLX4_DEBUG
  61
  62 int mlx4_debug_level = 0;
  63 module_param_named(debug_level, mlx4_debug_level, int, 0644);
  64 MODULE_PARM_DESC(debug_level, "Enable debug tracing if > 0");
  65
  66 #endif /* CONFIG_MLX4_DEBUG */
  67
  68 #ifdef CONFIG_PCI_MSI
  69
  70 static int msi_x = 1;
  71 module_param(msi_x, int, 0444);
  72 MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero");
  73
  74 #else /* CONFIG_PCI_MSI */
  75
  76 #define msi_x (0)
  77
  78 #endif /* CONFIG_PCI_MSI */
  79
  80 static int num_vfs;
  81 module_param(num_vfs, int, 0444);
  82 MODULE_PARM_DESC(num_vfs, "enable #num_vfs functions if num_vfs > 0");
  83
  84 static int probe_vf;
  85 module_param(probe_vf, int, 0644);
  86 MODULE_PARM_DESC(probe_vf, "number of vfs to probe by pf driver (num_vfs > 0)");
  87
  88 int mlx4_log_num_mgm_entry_size = MLX4_DEFAULT_MGM_LOG_ENTRY_SIZE;
  89 module_param_named(log_num_mgm_entry_size,
  90                         mlx4_log_num_mgm_entry_size, int, 0444);
  91 MODULE_PARM_DESC(log_num_mgm_entry_size, "log mgm size, that defines the num"
  92                                          " of qp per mcg, for example:"
  93                                          " 10 gives 248.range: 7 <="
  94                                          " log_num_mgm_entry_size <= 12."
  95                                          " To activate device managed"
  96                                          " flow steering when available, set to -1");
  97
  98 static bool enable_64b_cqe_eqe;
  99 module_param(enable_64b_cqe_eqe, bool, 0444);
 100 MODULE_PARM_DESC(enable_64b_cqe_eqe,
 101                  "Enable 64 byte CQEs/EQEs when the the FW supports this");
 102
 103 #define HCA_GLOBAL_CAP_MASK            0
 104
 105 #define PF_CONTEXT_BEHAVIOUR_MASK       MLX4_FUNC_CAP_64B_EQE_CQE
 106
 107 static char mlx4_version[] =
 108         DRV_NAME ": Mellanox ConnectX core driver v"
 109         DRV_VERSION " (" DRV_RELDATE ")\n";
 110
 111 static struct mlx4_profile default_profile = {
 112         .num_qp         = 1 << 18,
 113         .num_srq        = 1 << 16,
 114         .rdmarc_per_qp  = 1 << 4,
 115         .num_cq         = 1 << 16,
 116         .num_mcg        = 1 << 13,
 117         .num_mpt        = 1 << 19,
 118         .num_mtt        = 1 << 20, /* It is really num mtt segements */
 119 };
 120
 121 static int log_num_mac = 7;
 122 module_param_named(log_num_mac, log_num_mac, int, 0444);
 123 MODULE_PARM_DESC(log_num_mac, "Log2 max number of MACs per ETH port (1-7)");
 124
 125 static int log_num_vlan;
 126 module_param_named(log_num_vlan, log_num_vlan, int, 0444);
 127 MODULE_PARM_DESC(log_num_vlan, "Log2 max number of VLANs per ETH port (0-7)");
 128 /* Log2 max number of VLANs per ETH port (0-7) */
 129 #define MLX4_LOG_NUM_VLANS 7
 130
 131 static bool use_prio;
 132 module_param_named(use_prio, use_prio, bool, 0444);
 133 MODULE_PARM_DESC(use_prio, "Enable steering by VLAN priority on ETH ports "
 134                   "(0/1, default 0)");
 135
 136 int log_mtts_per_seg = ilog2(MLX4_MTT_ENTRY_PER_SEG);
 137 module_param_named(log_mtts_per_seg, log_mtts_per_seg, int, 0444);
 138 MODULE_PARM_DESC(log_mtts_per_seg, "Log2 number of MTT entries per segment (1-7)");
 139
 140 static int port_type_array[2] = {MLX4_PORT_TYPE_NONE, MLX4_PORT_TYPE_NONE};
 141 static int arr_argc = 2;
 142 module_param_array(port_type_array, int, &arr_argc, 0444);
 143 MODULE_PARM_DESC(port_type_array, "Array of port types: HW_DEFAULT (0) is default "
 144                                 "1 for IB, 2 for Ethernet");
 145
 146 struct mlx4_port_config {
 147         struct list_head list;
 148         enum mlx4_port_type port_type[MLX4_MAX_PORTS + 1];
 149         struct pci_dev *pdev;
 150 };
 151
 152 int mlx4_check_port_params(struct mlx4_dev *dev,
 153                            enum mlx4_port_type *port_type)
 154 {
 155         int i;
 156
 157         for (i = 0; i < dev->caps.num_ports - 1; i++) {
 158                 if (port_type[i] != port_type[i + 1]) {
 159                         if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP)) {
 160                                 mlx4_err(dev, "Only same port types supported "
 161                                          "on this HCA, aborting.\n");
 162                                 return -EINVAL;
 163                         }
 164                 }
 165         }
 166
 167         for (i = 0; i < dev->caps.num_ports; i++) {
 168                 if (!(port_type[i] & dev->caps.supported_type[i+1])) {
 169                         mlx4_err(dev, "Requested port type for port %d is not "
 170                                       "supported on this HCA\n", i + 1);
 171                         return -EINVAL;
 172                 }
 173         }
 174         return 0;
 175 }
 176
 177 static void mlx4_set_port_mask(struct mlx4_dev *dev)
 178 {
 179         int i;
 180
 181         for (i = 1; i <= dev->caps.num_ports; ++i)
 182                 dev->caps.port_mask[i] = dev->caps.port_type[i];
 183 }
 184
 185 static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
 186 {
 187         int err;
 188         int i;
 189
 190         err = mlx4_QUERY_DEV_CAP(dev, dev_cap);
 191         if (err) {
 192                 mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
 193                 return err;
 194         }
 195
 196         if (dev_cap->min_page_sz > PAGE_SIZE) {
 197                 mlx4_err(dev, "HCA minimum page size of %d bigger than "
 198                          "kernel PAGE_SIZE of %ld, aborting.\n",
 199                          dev_cap->min_page_sz, PAGE_SIZE);
 200                 return -ENODEV;
 201         }
 202         if (dev_cap->num_ports > MLX4_MAX_PORTS) {
 203                 mlx4_err(dev, "HCA has %d ports, but we only support %d, "
 204                          "aborting.\n",
 205                          dev_cap->num_ports, MLX4_MAX_PORTS);
 206                 return -ENODEV;
 207         }
 208
 209         if (dev_cap->uar_size > pci_resource_len(dev->pdev, 2)) {
 210                 mlx4_err(dev, "HCA reported UAR size of 0x%x bigger than "
 211                          "PCI resource 2 size of 0x%llx, aborting.\n",
 212                          dev_cap->uar_size,
 213                          (unsigned long long) pci_resource_len(dev->pdev, 2));
 214                 return -ENODEV;
 215         }
 216
 217         dev->caps.num_ports          = dev_cap->num_ports;
 218         dev->phys_caps.num_phys_eqs  = MLX4_MAX_EQ_NUM;
 219         for (i = 1; i <= dev->caps.num_ports; ++i) {
 220                 dev->caps.vl_cap[i]         = dev_cap->max_vl[i];
 221                 dev->caps.ib_mtu_cap[i]     = dev_cap->ib_mtu[i];
 222                 dev->phys_caps.gid_phys_table_len[i]  = dev_cap->max_gids[i];
 223                 dev->phys_caps.pkey_phys_table_len[i] = dev_cap->max_pkeys[i];
 224                 /* set gid and pkey table operating lengths by default
 225                  * to non-sriov values */
 226                 dev->caps.gid_table_len[i]  = dev_cap->max_gids[i];
 227                 dev->caps.pkey_table_len[i] = dev_cap->max_pkeys[i];
 228                 dev->caps.port_width_cap[i] = dev_cap->max_port_width[i];
 229                 dev->caps.eth_mtu_cap[i]    = dev_cap->eth_mtu[i];
 230                 dev->caps.def_mac[i]        = dev_cap->def_mac[i];
 231                 dev->caps.supported_type[i] = dev_cap->supported_port_types[i];
 232                 dev->caps.suggested_type[i] = dev_cap->suggested_type[i];
 233                 dev->caps.default_sense[i] = dev_cap->default_sense[i];
 234                 dev->caps.trans_type[i]     = dev_cap->trans_type[i];
 235                 dev->caps.vendor_oui[i]     = dev_cap->vendor_oui[i];
 236                 dev->caps.wavelength[i]     = dev_cap->wavelength[i];
 237                 dev->caps.trans_code[i]     = dev_cap->trans_code[i];
 238         }
 239
 240         dev->caps.uar_page_size      = PAGE_SIZE;
 241         dev->caps.num_uars           = dev_cap->uar_size / PAGE_SIZE;
 242         dev->caps.local_ca_ack_delay = dev_cap->local_ca_ack_delay;
 243         dev->caps.bf_reg_size        = dev_cap->bf_reg_size;
 244         dev->caps.bf_regs_per_page   = dev_cap->bf_regs_per_page;
 245         dev->caps.max_sq_sg          = dev_cap->max_sq_sg;
 246         dev->caps.max_rq_sg          = dev_cap->max_rq_sg;
 247         dev->caps.max_wqes           = dev_cap->max_qp_sz;
 248         dev->caps.max_qp_init_rdma   = dev_cap->max_requester_per_qp;
 249         dev->caps.max_srq_wqes       = dev_cap->max_srq_sz;
 250         dev->caps.max_srq_sge        = dev_cap->max_rq_sg - 1;
 251         dev->caps.reserved_srqs      = dev_cap->reserved_srqs;
 252         dev->caps.max_sq_desc_sz     = dev_cap->max_sq_desc_sz;
 253         dev->caps.max_rq_desc_sz     = dev_cap->max_rq_desc_sz;
 254         /*
 255          * Subtract 1 from the limit because we need to allocate a
 256          * spare CQE so the HCA HW can tell the difference between an
 257          * empty CQ and a full CQ.
 258          */
 259         dev->caps.max_cqes           = dev_cap->max_cq_sz - 1;
 260         dev->caps.reserved_cqs       = dev_cap->reserved_cqs;
 261         dev->caps.reserved_eqs       = dev_cap->reserved_eqs;
 262         dev->caps.reserved_mtts      = dev_cap->reserved_mtts;
 263         dev->caps.reserved_mrws      = dev_cap->reserved_mrws;
 264
 265         /* The first 128 UARs are used for EQ doorbells */
 266         dev->caps.reserved_uars      = max_t(int, 128, dev_cap->reserved_uars);
 267         dev->caps.reserved_pds       = dev_cap->reserved_pds;
 268         dev->caps.reserved_xrcds     = (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) ?
 269                                         dev_cap->reserved_xrcds : 0;
 270         dev->caps.max_xrcds          = (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) ?
 271                                         dev_cap->max_xrcds : 0;
 272         dev->caps.mtt_entry_sz       = dev_cap->mtt_entry_sz;
 273
 274         dev->caps.max_msg_sz         = dev_cap->max_msg_sz;
 275         dev->caps.page_size_cap      = ~(u32) (dev_cap->min_page_sz - 1);
 276         dev->caps.flags              = dev_cap->flags;
 277         dev->caps.flags2             = dev_cap->flags2;
 278         dev->caps.bmme_flags         = dev_cap->bmme_flags;
 279         dev->caps.reserved_lkey      = dev_cap->reserved_lkey;
 280         dev->caps.stat_rate_support  = dev_cap->stat_rate_support;
 281         dev->caps.max_gso_sz         = dev_cap->max_gso_sz;
 282         dev->caps.max_rss_tbl_sz     = dev_cap->max_rss_tbl_sz;
 283
 284         /* Sense port always allowed on supported devices for ConnectX-1 and -2 */
 285         if (mlx4_priv(dev)->pci_dev_data & MLX4_PCI_DEV_FORCE_SENSE_PORT)
 286                 dev->caps.flags |= MLX4_DEV_CAP_FLAG_SENSE_SUPPORT;
 287         /* Don't do sense port on multifunction devices (for now at least) */
 288         if (mlx4_is_mfunc(dev))
 289                 dev->caps.flags &= ~MLX4_DEV_CAP_FLAG_SENSE_SUPPORT;
 290
 291         dev->caps.log_num_macs  = log_num_mac;
 292         dev->caps.log_num_vlans = MLX4_LOG_NUM_VLANS;
 293         dev->caps.log_num_prios = use_prio ? 3 : 0;
 294
 295         for (i = 1; i <= dev->caps.num_ports; ++i) {
 296                 dev->caps.port_type[i] = MLX4_PORT_TYPE_NONE;
 297                 if (dev->caps.supported_type[i]) {
 298                         /* if only ETH is supported - assign ETH */
 299                         if (dev->caps.supported_type[i] == MLX4_PORT_TYPE_ETH)
 300                                 dev->caps.port_type[i] = MLX4_PORT_TYPE_ETH;
 301                         /* if only IB is supported, assign IB */
 302                         else if (dev->caps.supported_type[i] ==
 303                                  MLX4_PORT_TYPE_IB)
 304                                 dev->caps.port_type[i] = MLX4_PORT_TYPE_IB;
 305                         else {
 306                                 /* if IB and ETH are supported, we set the port
 307                                  * type according to user selection of port type;
 308                                  * if user selected none, take the FW hint */
 309                                 if (port_type_array[i - 1] == MLX4_PORT_TYPE_NONE)
 310                                         dev->caps.port_type[i] = dev->caps.suggested_type[i] ?
 311                                                 MLX4_PORT_TYPE_ETH : MLX4_PORT_TYPE_IB;
 312                                 else
 313                                         dev->caps.port_type[i] = port_type_array[i - 1];
 314                         }
 315                 }
 316                 /*
 317                  * Link sensing is allowed on the port if 3 conditions are true:
 318                  * 1. Both protocols are supported on the port.
 319                  * 2. Different types are supported on the port
 320                  * 3. FW declared that it supports link sensing
 321                  */
 322                 mlx4_priv(dev)->sense.sense_allowed[i] =
 323                         ((dev->caps.supported_type[i] == MLX4_PORT_TYPE_AUTO) &&
 324                          (dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP) &&
 325                          (dev->caps.flags & MLX4_DEV_CAP_FLAG_SENSE_SUPPORT));
 326
 327                 /*
 328                  * If "default_sense" bit is set, we move the port to "AUTO" mode
 329                  * and perform sense_port FW command to try and set the correct
 330                  * port type from beginning
 331                  */
 332                 if (mlx4_priv(dev)->sense.sense_allowed[i] && dev->caps.default_sense[i]) {
 333                         enum mlx4_port_type sensed_port = MLX4_PORT_TYPE_NONE;
 334                         dev->caps.possible_type[i] = MLX4_PORT_TYPE_AUTO;
 335                         mlx4_SENSE_PORT(dev, i, &sensed_port);
 336                         if (sensed_port != MLX4_PORT_TYPE_NONE)
 337                                 dev->caps.port_type[i] = sensed_port;
 338                 } else {
 339                         dev->caps.possible_type[i] = dev->caps.port_type[i];
 340                 }
 341
 342                 if (dev->caps.log_num_macs > dev_cap->log_max_macs[i]) {
 343                         dev->caps.log_num_macs = dev_cap->log_max_macs[i];
 344                         mlx4_warn(dev, "Requested number of MACs is too much "
 345                                   "for port %d, reducing to %d.\n",
 346                                   i, 1 << dev->caps.log_num_macs);
 347                 }
 348                 if (dev->caps.log_num_vlans > dev_cap->log_max_vlans[i]) {
 349                         dev->caps.log_num_vlans = dev_cap->log_max_vlans[i];
 350                         mlx4_warn(dev, "Requested number of VLANs is too much "
 351                                   "for port %d, reducing to %d.\n",
 352                                   i, 1 << dev->caps.log_num_vlans);
 353                 }
 354         }
 355
 356         dev->caps.max_counters = 1 << ilog2(dev_cap->max_counters);
 357
 358         dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW] = dev_cap->reserved_qps;
 359         dev->caps.reserved_qps_cnt[MLX4_QP_REGION_ETH_ADDR] =
 360                 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_ADDR] =
 361                 (1 << dev->caps.log_num_macs) *
 362                 (1 << dev->caps.log_num_vlans) *
 363                 (1 << dev->caps.log_num_prios) *
 364                 dev->caps.num_ports;
 365         dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_EXCH] = MLX4_NUM_FEXCH;
 366
 367         dev->caps.reserved_qps = dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW] +
 368                 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_ETH_ADDR] +
 369                 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_ADDR] +
 370                 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_EXCH];
 371
 372         dev->caps.sqp_demux = (mlx4_is_master(dev)) ? MLX4_MAX_NUM_SLAVES : 0;
 373
 374         if (!enable_64b_cqe_eqe) {
 375                 if (dev_cap->flags &
 376                     (MLX4_DEV_CAP_FLAG_64B_CQE | MLX4_DEV_CAP_FLAG_64B_EQE)) {
 377                         mlx4_warn(dev, "64B EQEs/CQEs supported by the device but not enabled\n");
 378                         dev->caps.flags &= ~MLX4_DEV_CAP_FLAG_64B_CQE;
 379                         dev->caps.flags &= ~MLX4_DEV_CAP_FLAG_64B_EQE;
 380                 }
 381         }
 382
 383         if ((dev_cap->flags &
 384             (MLX4_DEV_CAP_FLAG_64B_CQE | MLX4_DEV_CAP_FLAG_64B_EQE)) &&
 385             mlx4_is_master(dev))
 386                 dev->caps.function_caps |= MLX4_FUNC_CAP_64B_EQE_CQE;
 387
 388         return 0;
 389 }
 390 /*The function checks if there are live vf, return the num of them*/
 391 static int mlx4_how_many_lives_vf(struct mlx4_dev *dev)
 392 {
 393         struct mlx4_priv *priv = mlx4_priv(dev);
 394         struct mlx4_slave_state *s_state;
 395         int i;
 396         int ret = 0;
 397
 398         for (i = 1/*the ppf is 0*/; i < dev->num_slaves; ++i) {
 399                 s_state = &priv->mfunc.master.slave_state[i];
 400                 if (s_state->active && s_state->last_cmd !=
 401                     MLX4_COMM_CMD_RESET) {
 402                         mlx4_warn(dev, "%s: slave: %d is still active\n",
 403                                   __func__, i);
 404                         ret++;
 405                 }
 406         }
 407         return ret;
 408 }
 409
 410 int mlx4_get_parav_qkey(struct mlx4_dev *dev, u32 qpn, u32 *qkey)
 411 {
 412         u32 qk = MLX4_RESERVED_QKEY_BASE;
 413
 414         if (qpn >= dev->phys_caps.base_tunnel_sqpn + 8 * MLX4_MFUNC_MAX ||
 415             qpn < dev->phys_caps.base_proxy_sqpn)
 416                 return -EINVAL;
 417
 418         if (qpn >= dev->phys_caps.base_tunnel_sqpn)
 419                 /* tunnel qp */
 420                 qk += qpn - dev->phys_caps.base_tunnel_sqpn;
 421         else
 422                 qk += qpn - dev->phys_caps.base_proxy_sqpn;
 423         *qkey = qk;
 424         return 0;
 425 }
 426 EXPORT_SYMBOL(mlx4_get_parav_qkey);
 427
 428 void mlx4_sync_pkey_table(struct mlx4_dev *dev, int slave, int port, int i, int val)
 429 {
 430         struct mlx4_priv *priv = container_of(dev, struct mlx4_priv, dev);
 431
 432         if (!mlx4_is_master(dev))
 433                 return;
 434
 435         priv->virt2phys_pkey[slave][port - 1][i] = val;
 436 }
 437 EXPORT_SYMBOL(mlx4_sync_pkey_table);
 438
 439 void mlx4_put_slave_node_guid(struct mlx4_dev *dev, int slave, __be64 guid)
 440 {
 441         struct mlx4_priv *priv = container_of(dev, struct mlx4_priv, dev);
 442
 443         if (!mlx4_is_master(dev))
 444                 return;
 445
 446         priv->slave_node_guids[slave] = guid;
 447 }
 448 EXPORT_SYMBOL(mlx4_put_slave_node_guid);
 449
 450 __be64 mlx4_get_slave_node_guid(struct mlx4_dev *dev, int slave)
 451 {
 452         struct mlx4_priv *priv = container_of(dev, struct mlx4_priv, dev);
 453
 454         if (!mlx4_is_master(dev))
 455                 return 0;
 456
 457         return priv->slave_node_guids[slave];
 458 }
 459 EXPORT_SYMBOL(mlx4_get_slave_node_guid);
 460
 461 int mlx4_is_slave_active(struct mlx4_dev *dev, int slave)
 462 {
 463         struct mlx4_priv *priv = mlx4_priv(dev);
 464         struct mlx4_slave_state *s_slave;
 465
 466         if (!mlx4_is_master(dev))
 467                 return 0;
 468
 469         s_slave = &priv->mfunc.master.slave_state[slave];
 470         return !!s_slave->active;
 471 }
 472 EXPORT_SYMBOL(mlx4_is_slave_active);
 473
 474 static void slave_adjust_steering_mode(struct mlx4_dev *dev,
 475                                        struct mlx4_dev_cap *dev_cap,
 476                                        struct mlx4_init_hca_param *hca_param)
 477 {
 478         dev->caps.steering_mode = hca_param->steering_mode;
 479         if (dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED) {
 480                 dev->caps.num_qp_per_mgm = dev_cap->fs_max_num_qp_per_entry;
 481                 dev->caps.fs_log_max_ucast_qp_range_size =
 482                         dev_cap->fs_log_max_ucast_qp_range_size;
 483         } else
 484                 dev->caps.num_qp_per_mgm =
 485                         4 * ((1 << hca_param->log_mc_entry_sz)/16 - 2);
 486
 487         mlx4_dbg(dev, "Steering mode is: %s\n",
 488                  mlx4_steering_mode_str(dev->caps.steering_mode));
 489 }
 490
 491 static int mlx4_slave_cap(struct mlx4_dev *dev)
 492 {
 493         int                        err;
 494         u32                        page_size;
 495         struct mlx4_dev_cap        dev_cap;
 496         struct mlx4_func_cap       func_cap;
 497         struct mlx4_init_hca_param hca_param;
 498         int                        i;
 499
 500         memset(&hca_param, 0, sizeof(hca_param));
 501         err = mlx4_QUERY_HCA(dev, &hca_param);
 502         if (err) {
 503                 mlx4_err(dev, "QUERY_HCA command failed, aborting.\n");
 504                 return err;
 505         }
 506
 507         /*fail if the hca has an unknown capability */
 508         if ((hca_param.global_caps | HCA_GLOBAL_CAP_MASK) !=
 509             HCA_GLOBAL_CAP_MASK) {
 510                 mlx4_err(dev, "Unknown hca global capabilities\n");
 511                 return -ENOSYS;
 512         }
 513
 514         mlx4_log_num_mgm_entry_size = hca_param.log_mc_entry_sz;
 515
 516         memset(&dev_cap, 0, sizeof(dev_cap));
 517         dev->caps.max_qp_dest_rdma = 1 << hca_param.log_rd_per_qp;
 518         err = mlx4_dev_cap(dev, &dev_cap);
 519         if (err) {
 520                 mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
 521                 return err;
 522         }
 523
 524         err = mlx4_QUERY_FW(dev);
 525         if (err)
 526                 mlx4_err(dev, "QUERY_FW command failed: could not get FW version.\n");
 527
 528         page_size = ~dev->caps.page_size_cap + 1;
 529         mlx4_warn(dev, "HCA minimum page size:%d\n", page_size);
 530         if (page_size > PAGE_SIZE) {
 531                 mlx4_err(dev, "HCA minimum page size of %d bigger than "
 532                          "kernel PAGE_SIZE of %ld, aborting.\n",
 533                          page_size, PAGE_SIZE);
 534                 return -ENODEV;
 535         }
 536
 537         /* slave gets uar page size from QUERY_HCA fw command */
 538         dev->caps.uar_page_size = 1 << (hca_param.uar_page_sz + 12);
 539
 540         /* TODO: relax this assumption */
 541         if (dev->caps.uar_page_size != PAGE_SIZE) {
 542                 mlx4_err(dev, "UAR size:%d != kernel PAGE_SIZE of %ld\n",
 543                          dev->caps.uar_page_size, PAGE_SIZE);
 544                 return -ENODEV;
 545         }
 546
 547         memset(&func_cap, 0, sizeof(func_cap));
 548         err = mlx4_QUERY_FUNC_CAP(dev, 0, &func_cap);
 549         if (err) {
 550                 mlx4_err(dev, "QUERY_FUNC_CAP general command failed, aborting (%d).\n",
 551                           err);
 552                 return err;
 553         }
 554
 555         if ((func_cap.pf_context_behaviour | PF_CONTEXT_BEHAVIOUR_MASK) !=
 556             PF_CONTEXT_BEHAVIOUR_MASK) {
 557                 mlx4_err(dev, "Unknown pf context behaviour\n");
 558                 return -ENOSYS;
 559         }
 560
 561         dev->caps.num_ports             = func_cap.num_ports;
 562         dev->caps.num_qps               = func_cap.qp_quota;
 563         dev->caps.num_srqs              = func_cap.srq_quota;
 564         dev->caps.num_cqs               = func_cap.cq_quota;
 565         dev->caps.num_eqs               = func_cap.max_eq;
 566         dev->caps.reserved_eqs          = func_cap.reserved_eq;
 567         dev->caps.num_mpts              = func_cap.mpt_quota;
 568         dev->caps.num_mtts              = func_cap.mtt_quota;
 569         dev->caps.num_pds               = MLX4_NUM_PDS;
 570         dev->caps.num_mgms              = 0;
 571         dev->caps.num_amgms             = 0;
 572
 573         if (dev->caps.num_ports > MLX4_MAX_PORTS) {
 574                 mlx4_err(dev, "HCA has %d ports, but we only support %d, "
 575                          "aborting.\n", dev->caps.num_ports, MLX4_MAX_PORTS);
 576                 return -ENODEV;
 577         }
 578
 579         dev->caps.qp0_tunnel = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL);
 580         dev->caps.qp0_proxy = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL);
 581         dev->caps.qp1_tunnel = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL);
 582         dev->caps.qp1_proxy = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL);
 583
 584         if (!dev->caps.qp0_tunnel || !dev->caps.qp0_proxy ||
 585             !dev->caps.qp1_tunnel || !dev->caps.qp1_proxy) {
 586                 err = -ENOMEM;
 587                 goto err_mem;
 588         }
 589
 590         for (i = 1; i <= dev->caps.num_ports; ++i) {
 591                 err = mlx4_QUERY_FUNC_CAP(dev, (u32) i, &func_cap);
 592                 if (err) {
 593                         mlx4_err(dev, "QUERY_FUNC_CAP port command failed for"
 594                                  " port %d, aborting (%d).\n", i, err);
 595                         goto err_mem;
 596                 }
 597                 dev->caps.qp0_tunnel[i - 1] = func_cap.qp0_tunnel_qpn;
 598                 dev->caps.qp0_proxy[i - 1] = func_cap.qp0_proxy_qpn;
 599                 dev->caps.qp1_tunnel[i - 1] = func_cap.qp1_tunnel_qpn;
 600                 dev->caps.qp1_proxy[i - 1] = func_cap.qp1_proxy_qpn;
 601                 dev->caps.port_mask[i] = dev->caps.port_type[i];
 602                 if (mlx4_get_slave_pkey_gid_tbl_len(dev, i,
 603                                                     &dev->caps.gid_table_len[i],
 604                                                     &dev->caps.pkey_table_len[i]))
 605                         goto err_mem;
 606         }
 607
 608         if (dev->caps.uar_page_size * (dev->caps.num_uars -
 609                                        dev->caps.reserved_uars) >
 610                                        pci_resource_len(dev->pdev, 2)) {
 611                 mlx4_err(dev, "HCA reported UAR region size of 0x%x bigger than "
 612                          "PCI resource 2 size of 0x%llx, aborting.\n",
 613                          dev->caps.uar_page_size * dev->caps.num_uars,
 614                          (unsigned long long) pci_resource_len(dev->pdev, 2));
 615                 goto err_mem;
 616         }
 617
 618         if (hca_param.dev_cap_enabled & MLX4_DEV_CAP_64B_EQE_ENABLED) {
 619                 dev->caps.eqe_size   = 64;
 620                 dev->caps.eqe_factor = 1;
 621         } else {
 622                 dev->caps.eqe_size   = 32;
 623                 dev->caps.eqe_factor = 0;
 624         }
 625
 626         if (hca_param.dev_cap_enabled & MLX4_DEV_CAP_64B_CQE_ENABLED) {
 627                 dev->caps.cqe_size   = 64;
 628                 dev->caps.userspace_caps |= MLX4_USER_DEV_CAP_64B_CQE;
 629         } else {
 630                 dev->caps.cqe_size   = 32;
 631         }
 632
 633         slave_adjust_steering_mode(dev, &dev_cap, &hca_param);
 634
 635         return 0;
 636
 637 err_mem:
 638         kfree(dev->caps.qp0_tunnel);
 639         kfree(dev->caps.qp0_proxy);
 640         kfree(dev->caps.qp1_tunnel);
 641         kfree(dev->caps.qp1_proxy);
 642         dev->caps.qp0_tunnel = dev->caps.qp0_proxy =
 643                 dev->caps.qp1_tunnel = dev->caps.qp1_proxy = NULL;
 644
 645         return err;
 646 }
 647
 648 /*
 649  * Change the port configuration of the device.
 650  * Every user of this function must hold the port mutex.
 651  */
 652 int mlx4_change_port_types(struct mlx4_dev *dev,
 653                            enum mlx4_port_type *port_types)
 654 {
 655         int err = 0;
 656         int change = 0;
 657         int port;
 658
 659         for (port = 0; port <  dev->caps.num_ports; port++) {
 660                 /* Change the port type only if the new type is different
 661                  * from the current, and not set to Auto */
 662                 if (port_types[port] != dev->caps.port_type[port + 1])
 663                         change = 1;
 664         }
 665         if (change) {
 666                 mlx4_unregister_device(dev);
 667                 for (port = 1; port <= dev->caps.num_ports; port++) {
 668                         mlx4_CLOSE_PORT(dev, port);
 669                         dev->caps.port_type[port] = port_types[port - 1];
 670                         err = mlx4_SET_PORT(dev, port, -1);
 671                         if (err) {
 672                                 mlx4_err(dev, "Failed to set port %d, "
 673                                               "aborting\n", port);
 674                                 goto out;
 675                         }
 676                 }
 677                 mlx4_set_port_mask(dev);
 678                 err = mlx4_register_device(dev);
 679         }
 680
 681 out:
 682         return err;
 683 }
 684
 685 static ssize_t show_port_type(struct device *dev,
 686                               struct device_attribute *attr,
 687                               char *buf)
 688 {
 689         struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
 690                                                    port_attr);
 691         struct mlx4_dev *mdev = info->dev;
 692         char type[8];
 693
 694         sprintf(type, "%s",
 695                 (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_IB) ?
 696                 "ib" : "eth");
 697         if (mdev->caps.possible_type[info->port] == MLX4_PORT_TYPE_AUTO)
 698                 sprintf(buf, "auto (%s)\n", type);
 699         else
 700                 sprintf(buf, "%s\n", type);
 701
 702         return strlen(buf);
 703 }
 704
 705 static ssize_t set_port_type(struct device *dev,
 706                              struct device_attribute *attr,
 707                              const char *buf, size_t count)
 708 {
 709         struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
 710                                                    port_attr);
 711         struct mlx4_dev *mdev = info->dev;
 712         struct mlx4_priv *priv = mlx4_priv(mdev);
 713         enum mlx4_port_type types[MLX4_MAX_PORTS];
 714         enum mlx4_port_type new_types[MLX4_MAX_PORTS];
 715         int i;
 716         int err = 0;
 717
 718         if (!strcmp(buf, "ib\n"))
 719                 info->tmp_type = MLX4_PORT_TYPE_IB;
 720         else if (!strcmp(buf, "eth\n"))
 721                 info->tmp_type = MLX4_PORT_TYPE_ETH;
 722         else if (!strcmp(buf, "auto\n"))
 723                 info->tmp_type = MLX4_PORT_TYPE_AUTO;
 724         else {
 725                 mlx4_err(mdev, "%s is not supported port type\n", buf);
 726                 return -EINVAL;
 727         }
 728
 729         mlx4_stop_sense(mdev);
 730         mutex_lock(&priv->port_mutex);
 731         /* Possible type is always the one that was delivered */
 732         mdev->caps.possible_type[info->port] = info->tmp_type;
 733
 734         for (i = 0; i < mdev->caps.num_ports; i++) {
 735                 types[i] = priv->port[i+1].tmp_type ? priv->port[i+1].tmp_type :
 736                                         mdev->caps.possible_type[i+1];
 737                 if (types[i] == MLX4_PORT_TYPE_AUTO)
 738                         types[i] = mdev->caps.port_type[i+1];
 739         }
 740
 741         if (!(mdev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP) &&
 742             !(mdev->caps.flags & MLX4_DEV_CAP_FLAG_SENSE_SUPPORT)) {
 743                 for (i = 1; i <= mdev->caps.num_ports; i++) {
 744                         if (mdev->caps.possible_type[i] == MLX4_PORT_TYPE_AUTO) {
 745                                 mdev->caps.possible_type[i] = mdev->caps.port_type[i];
 746                                 err = -EINVAL;
 747                         }
 748                 }
 749         }
 750         if (err) {
 751                 mlx4_err(mdev, "Auto sensing is not supported on this HCA. "
 752                                "Set only 'eth' or 'ib' for both ports "
 753                                "(should be the same)\n");
 754                 goto out;
 755         }
 756
 757         mlx4_do_sense_ports(mdev, new_types, types);
 758
 759         err = mlx4_check_port_params(mdev, new_types);
 760         if (err)
 761                 goto out;
 762
 763         /* We are about to apply the changes after the configuration
 764          * was verified, no need to remember the temporary types
 765          * any more */
 766         for (i = 0; i < mdev->caps.num_ports; i++)
 767                 priv->port[i + 1].tmp_type = 0;
 768
 769         err = mlx4_change_port_types(mdev, new_types);
 770
 771 out:
 772         mlx4_start_sense(mdev);
 773         mutex_unlock(&priv->port_mutex);
 774         return err ? err : count;
 775 }
 776
 777 enum ibta_mtu {
 778         IB_MTU_256  = 1,
 779         IB_MTU_512  = 2,
 780         IB_MTU_1024 = 3,
 781         IB_MTU_2048 = 4,
 782         IB_MTU_4096 = 5
 783 };
 784
 785 static inline int int_to_ibta_mtu(int mtu)
 786 {
 787         switch (mtu) {
 788         case 256:  return IB_MTU_256;
 789         case 512:  return IB_MTU_512;
 790         case 1024: return IB_MTU_1024;
 791         case 2048: return IB_MTU_2048;
 792         case 4096: return IB_MTU_4096;
 793         default: return -1;
 794         }
 795 }
 796
 797 static inline int ibta_mtu_to_int(enum ibta_mtu mtu)
 798 {
 799         switch (mtu) {
 800         case IB_MTU_256:  return  256;
 801         case IB_MTU_512:  return  512;
 802         case IB_MTU_1024: return 1024;
 803         case IB_MTU_2048: return 2048;
 804         case IB_MTU_4096: return 4096;
 805         default: return -1;
 806         }
 807 }
 808
 809 static ssize_t show_port_ib_mtu(struct device *dev,
 810                              struct device_attribute *attr,
 811                              char *buf)
 812 {
 813         struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
 814                                                    port_mtu_attr);
 815         struct mlx4_dev *mdev = info->dev;
 816
 817         if (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_ETH)
 818                 mlx4_warn(mdev, "port level mtu is only used for IB ports\n");
 819
 820         sprintf(buf, "%d\n",
 821                         ibta_mtu_to_int(mdev->caps.port_ib_mtu[info->port]));
 822         return strlen(buf);
 823 }
 824
 825 static ssize_t set_port_ib_mtu(struct device *dev,
 826                              struct device_attribute *attr,
 827                              const char *buf, size_t count)
 828 {
 829         struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
 830                                                    port_mtu_attr);
 831         struct mlx4_dev *mdev = info->dev;
 832         struct mlx4_priv *priv = mlx4_priv(mdev);
 833         int err, port, mtu, ibta_mtu = -1;
 834
 835         if (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_ETH) {
 836                 mlx4_warn(mdev, "port level mtu is only used for IB ports\n");
 837                 return -EINVAL;
 838         }
 839
 840         err = sscanf(buf, "%d", &mtu);
 841         if (err > 0)
 842                 ibta_mtu = int_to_ibta_mtu(mtu);
 843
 844         if (err <= 0 || ibta_mtu < 0) {
 845                 mlx4_err(mdev, "%s is invalid IBTA mtu\n", buf);
 846                 return -EINVAL;
 847         }
 848
 849         mdev->caps.port_ib_mtu[info->port] = ibta_mtu;
 850
 851         mlx4_stop_sense(mdev);
 852         mutex_lock(&priv->port_mutex);
 853         mlx4_unregister_device(mdev);
 854         for (port = 1; port <= mdev->caps.num_ports; port++) {
 855                 mlx4_CLOSE_PORT(mdev, port);
 856                 err = mlx4_SET_PORT(mdev, port, -1);
 857                 if (err) {
 858                         mlx4_err(mdev, "Failed to set port %d, "
 859                                       "aborting\n", port);
 860                         goto err_set_port;
 861                 }
 862         }
 863         err = mlx4_register_device(mdev);
 864 err_set_port:
 865         mutex_unlock(&priv->port_mutex);
 866         mlx4_start_sense(mdev);
 867         return err ? err : count;
 868 }
 869
 870 static int mlx4_load_fw(struct mlx4_dev *dev)
 871 {
 872         struct mlx4_priv *priv = mlx4_priv(dev);
 873         int err;
 874
 875         priv->fw.fw_icm = mlx4_alloc_icm(dev, priv->fw.fw_pages,
 876                                          GFP_HIGHUSER | __GFP_NOWARN, 0);
 877         if (!priv->fw.fw_icm) {
 878                 mlx4_err(dev, "Couldn't allocate FW area, aborting.\n");
 879                 return -ENOMEM;
 880         }
 881
 882         err = mlx4_MAP_FA(dev, priv->fw.fw_icm);
 883         if (err) {
 884                 mlx4_err(dev, "MAP_FA command failed, aborting.\n");
 885                 goto err_free;
 886         }
 887
 888         err = mlx4_RUN_FW(dev);
 889         if (err) {
 890                 mlx4_err(dev, "RUN_FW command failed, aborting.\n");
 891                 goto err_unmap_fa;
 892         }
 893
 894         return 0;
 895
 896 err_unmap_fa:
 897         mlx4_UNMAP_FA(dev);
 898
 899 err_free:
 900         mlx4_free_icm(dev, priv->fw.fw_icm, 0);
 901         return err;
 902 }
 903
 904 static int mlx4_init_cmpt_table(struct mlx4_dev *dev, u64 cmpt_base,
 905                                 int cmpt_entry_sz)
 906 {
 907         struct mlx4_priv *priv = mlx4_priv(dev);
 908         int err;
 909         int num_eqs;
 910
 911         err = mlx4_init_icm_table(dev, &priv->qp_table.cmpt_table,
 912                                   cmpt_base +
 913                                   ((u64) (MLX4_CMPT_TYPE_QP *
 914                                           cmpt_entry_sz) << MLX4_CMPT_SHIFT),
 915                                   cmpt_entry_sz, dev->caps.num_qps,
 916                                   dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
 917                                   0, 0);
 918         if (err)
 919                 goto err;
 920
 921         err = mlx4_init_icm_table(dev, &priv->srq_table.cmpt_table,
 922                                   cmpt_base +
 923                                   ((u64) (MLX4_CMPT_TYPE_SRQ *
 924                                           cmpt_entry_sz) << MLX4_CMPT_SHIFT),
 925                                   cmpt_entry_sz, dev->caps.num_srqs,
 926                                   dev->caps.reserved_srqs, 0, 0);
 927         if (err)
 928                 goto err_qp;
 929
 930         err = mlx4_init_icm_table(dev, &priv->cq_table.cmpt_table,
 931                                   cmpt_base +
 932                                   ((u64) (MLX4_CMPT_TYPE_CQ *
 933                                           cmpt_entry_sz) << MLX4_CMPT_SHIFT),
 934                                   cmpt_entry_sz, dev->caps.num_cqs,
 935                                   dev->caps.reserved_cqs, 0, 0);
 936         if (err)
 937                 goto err_srq;
 938
 939         num_eqs = (mlx4_is_master(dev)) ? dev->phys_caps.num_phys_eqs :
 940                   dev->caps.num_eqs;
 941         err = mlx4_init_icm_table(dev, &priv->eq_table.cmpt_table,
 942                                   cmpt_base +
 943                                   ((u64) (MLX4_CMPT_TYPE_EQ *
 944                                           cmpt_entry_sz) << MLX4_CMPT_SHIFT),
 945                                   cmpt_entry_sz, num_eqs, num_eqs, 0, 0);
 946         if (err)
 947                 goto err_cq;
 948
 949         return 0;
 950
 951 err_cq:
 952         mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
 953
 954 err_srq:
 955         mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
 956
 957 err_qp:
 958         mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
 959
 960 err:
 961         return err;
 962 }
 963
 964 static int mlx4_init_icm(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap,
 965                          struct mlx4_init_hca_param *init_hca, u64 icm_size)
 966 {
 967         struct mlx4_priv *priv = mlx4_priv(dev);
 968         u64 aux_pages;
 969         int num_eqs;
 970         int err;
 971
 972         err = mlx4_SET_ICM_SIZE(dev, icm_size, &aux_pages);
 973         if (err) {
 974                 mlx4_err(dev, "SET_ICM_SIZE command failed, aborting.\n");
 975                 return err;
 976         }
 977
 978         mlx4_dbg(dev, "%lld KB of HCA context requires %lld KB aux memory.\n",
 979                  (unsigned long long) icm_size >> 10,
 980                  (unsigned long long) aux_pages << 2);
 981
 982         priv->fw.aux_icm = mlx4_alloc_icm(dev, aux_pages,
 983                                           GFP_HIGHUSER | __GFP_NOWARN, 0);
 984         if (!priv->fw.aux_icm) {
 985                 mlx4_err(dev, "Couldn't allocate aux memory, aborting.\n");
 986                 return -ENOMEM;
 987         }
 988
 989         err = mlx4_MAP_ICM_AUX(dev, priv->fw.aux_icm);
 990         if (err) {
 991                 mlx4_err(dev, "MAP_ICM_AUX command failed, aborting.\n");
 992                 goto err_free_aux;
 993         }
 994
 995         err = mlx4_init_cmpt_table(dev, init_hca->cmpt_base, dev_cap->cmpt_entry_sz);
 996         if (err) {
 997                 mlx4_err(dev, "Failed to map cMPT context memory, aborting.\n");
 998                 goto err_unmap_aux;
 999         }
1000
1001
1002         num_eqs = (mlx4_is_master(dev)) ? dev->phys_caps.num_phys_eqs :
1003                    dev->caps.num_eqs;
1004         err = mlx4_init_icm_table(dev, &priv->eq_table.table,
1005                                   init_hca->eqc_base, dev_cap->eqc_entry_sz,
1006                                   num_eqs, num_eqs, 0, 0);
1007         if (err) {
1008                 mlx4_err(dev, "Failed to map EQ context memory, aborting.\n");
1009                 goto err_unmap_cmpt;
1010         }
1011
1012         /*
1013          * Reserved MTT entries must be aligned up to a cacheline
1014          * boundary, since the FW will write to them, while the driver
1015          * writes to all other MTT entries. (The variable
1016          * dev->caps.mtt_entry_sz below is really the MTT segment
1017          * size, not the raw entry size)
1018          */
1019         dev->caps.reserved_mtts =
1020                 ALIGN(dev->caps.reserved_mtts * dev->caps.mtt_entry_sz,
1021                       dma_get_cache_alignment()) / dev->caps.mtt_entry_sz;
1022
1023         err = mlx4_init_icm_table(dev, &priv->mr_table.mtt_table,
1024                                   init_hca->mtt_base,
1025                                   dev->caps.mtt_entry_sz,
1026                                   dev->caps.num_mtts,
1027                                   dev->caps.reserved_mtts, 1, 0);
1028         if (err) {
1029                 mlx4_err(dev, "Failed to map MTT context memory, aborting.\n");
1030                 goto err_unmap_eq;
1031         }
1032
1033         err = mlx4_init_icm_table(dev, &priv->mr_table.dmpt_table,
1034                                   init_hca->dmpt_base,
1035                                   dev_cap->dmpt_entry_sz,
1036                                   dev->caps.num_mpts,
1037                                   dev->caps.reserved_mrws, 1, 1);
1038         if (err) {
1039                 mlx4_err(dev, "Failed to map dMPT context memory, aborting.\n");
1040                 goto err_unmap_mtt;
1041         }
1042
1043         err = mlx4_init_icm_table(dev, &priv->qp_table.qp_table,
1044                                   init_hca->qpc_base,
1045                                   dev_cap->qpc_entry_sz,
1046                                   dev->caps.num_qps,
1047                                   dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
1048                                   0, 0);
1049         if (err) {
1050                 mlx4_err(dev, "Failed to map QP context memory, aborting.\n");
1051                 goto err_unmap_dmpt;
1052         }
1053
1054         err = mlx4_init_icm_table(dev, &priv->qp_table.auxc_table,
1055                                   init_hca->auxc_base,
1056                                   dev_cap->aux_entry_sz,
1057                                   dev->caps.num_qps,
1058                                   dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
1059                                   0, 0);
1060         if (err) {
1061                 mlx4_err(dev, "Failed to map AUXC context memory, aborting.\n");
1062                 goto err_unmap_qp;
1063         }
1064
1065         err = mlx4_init_icm_table(dev, &priv->qp_table.altc_table,
1066                                   init_hca->altc_base,
1067                                   dev_cap->altc_entry_sz,
1068                                   dev->caps.num_qps,
1069                                   dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
1070                                   0, 0);
1071         if (err) {
1072                 mlx4_err(dev, "Failed to map ALTC context memory, aborting.\n");
1073                 goto err_unmap_auxc;
1074         }
1075
1076         err = mlx4_init_icm_table(dev, &priv->qp_table.rdmarc_table,
1077                                   init_hca->rdmarc_base,
1078                                   dev_cap->rdmarc_entry_sz << priv->qp_table.rdmarc_shift,
1079                                   dev->caps.num_qps,
1080                                   dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
1081                                   0, 0);
1082         if (err) {
1083                 mlx4_err(dev, "Failed to map RDMARC context memory, aborting\n");
1084                 goto err_unmap_altc;
1085         }
1086
1087         err = mlx4_init_icm_table(dev, &priv->cq_table.table,
1088                                   init_hca->cqc_base,
1089                                   dev_cap->cqc_entry_sz,
1090                                   dev->caps.num_cqs,
1091                                   dev->caps.reserved_cqs, 0, 0);
1092         if (err) {
1093                 mlx4_err(dev, "Failed to map CQ context memory, aborting.\n");
1094                 goto err_unmap_rdmarc;
1095         }
1096
1097         err = mlx4_init_icm_table(dev, &priv->srq_table.table,
1098                                   init_hca->srqc_base,
1099                                   dev_cap->srq_entry_sz,
1100                                   dev->caps.num_srqs,
1101                                   dev->caps.reserved_srqs, 0, 0);
1102         if (err) {
1103                 mlx4_err(dev, "Failed to map SRQ context memory, aborting.\n");
1104                 goto err_unmap_cq;
1105         }
1106
1107         /*
1108          * For flow steering device managed mode it is required to use
1109          * mlx4_init_icm_table. For B0 steering mode it's not strictly
1110          * required, but for simplicity just map the whole multicast
1111          * group table now.  The table isn't very big and it's a lot
1112          * easier than trying to track ref counts.
1113          */
1114         err = mlx4_init_icm_table(dev, &priv->mcg_table.table,
1115                                   init_hca->mc_base,
1116                                   mlx4_get_mgm_entry_size(dev),
1117                                   dev->caps.num_mgms + dev->caps.num_amgms,
1118                                   dev->caps.num_mgms + dev->caps.num_amgms,
1119                                   0, 0);
1120         if (err) {
1121                 mlx4_err(dev, "Failed to map MCG context memory, aborting.\n");
1122                 goto err_unmap_srq;
1123         }
1124
1125         return 0;
1126
1127 err_unmap_srq:
1128         mlx4_cleanup_icm_table(dev, &priv->srq_table.table);
1129
1130 err_unmap_cq:
1131         mlx4_cleanup_icm_table(dev, &priv->cq_table.table);
1132
1133 err_unmap_rdmarc:
1134         mlx4_cleanup_icm_table(dev, &priv->qp_table.rdmarc_table);
1135
1136 err_unmap_altc:
1137         mlx4_cleanup_icm_table(dev, &priv->qp_table.altc_table);
1138
1139 err_unmap_auxc:
1140         mlx4_cleanup_icm_table(dev, &priv->qp_table.auxc_table);
1141
1142 err_unmap_qp:
1143         mlx4_cleanup_icm_table(dev, &priv->qp_table.qp_table);
1144
1145 err_unmap_dmpt:
1146         mlx4_cleanup_icm_table(dev, &priv->mr_table.dmpt_table);
1147
1148 err_unmap_mtt:
1149         mlx4_cleanup_icm_table(dev, &priv->mr_table.mtt_table);
1150
1151 err_unmap_eq:
1152         mlx4_cleanup_icm_table(dev, &priv->eq_table.table);
1153
1154 err_unmap_cmpt:
1155         mlx4_cleanup_icm_table(dev, &priv->eq_table.cmpt_table);
1156         mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
1157         mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
1158         mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
1159
1160 err_unmap_aux:
1161         mlx4_UNMAP_ICM_AUX(dev);
1162
1163 err_free_aux:
1164         mlx4_free_icm(dev, priv->fw.aux_icm, 0);
1165
1166         return err;
1167 }
1168
1169 static void mlx4_free_icms(struct mlx4_dev *dev)
1170 {
1171         struct mlx4_priv *priv = mlx4_priv(dev);
1172
1173         mlx4_cleanup_icm_table(dev, &priv->mcg_table.table);
1174         mlx4_cleanup_icm_table(dev, &priv->srq_table.table);
1175         mlx4_cleanup_icm_table(dev, &priv->cq_table.table);
1176         mlx4_cleanup_icm_table(dev, &priv->qp_table.rdmarc_table);
1177         mlx4_cleanup_icm_table(dev, &priv->qp_table.altc_table);
1178         mlx4_cleanup_icm_table(dev, &priv->qp_table.auxc_table);
1179         mlx4_cleanup_icm_table(dev, &priv->qp_table.qp_table);
1180         mlx4_cleanup_icm_table(dev, &priv->mr_table.dmpt_table);
1181         mlx4_cleanup_icm_table(dev, &priv->mr_table.mtt_table);
1182         mlx4_cleanup_icm_table(dev, &priv->eq_table.table);
1183         mlx4_cleanup_icm_table(dev, &priv->eq_table.cmpt_table);
1184         mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
1185         mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
1186         mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
1187
1188         mlx4_UNMAP_ICM_AUX(dev);
1189         mlx4_free_icm(dev, priv->fw.aux_icm, 0);
1190 }
1191
1192 static void mlx4_slave_exit(struct mlx4_dev *dev)
1193 {
1194         struct mlx4_priv *priv = mlx4_priv(dev);
1195
1196         mutex_lock(&priv->cmd.slave_cmd_mutex);
1197         if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0, MLX4_COMM_TIME))
1198                 mlx4_warn(dev, "Failed to close slave function.\n");
1199         mutex_unlock(&priv->cmd.slave_cmd_mutex);
1200 }
1201
1202 static int map_bf_area(struct mlx4_dev *dev)
1203 {
1204         struct mlx4_priv *priv = mlx4_priv(dev);
1205         resource_size_t bf_start;
1206         resource_size_t bf_len;
1207         int err = 0;
1208
1209         if (!dev->caps.bf_reg_size)
1210                 return -ENXIO;
1211
1212         bf_start = pci_resource_start(dev->pdev, 2) +
1213                         (dev->caps.num_uars << PAGE_SHIFT);
1214         bf_len = pci_resource_len(dev->pdev, 2) -
1215                         (dev->caps.num_uars << PAGE_SHIFT);
1216         priv->bf_mapping = io_mapping_create_wc(bf_start, bf_len);
1217         if (!priv->bf_mapping)
1218                 err = -ENOMEM;
1219
1220         return err;
1221 }
1222
1223 static void unmap_bf_area(struct mlx4_dev *dev)
1224 {
1225         if (mlx4_priv(dev)->bf_mapping)
1226                 io_mapping_free(mlx4_priv(dev)->bf_mapping);
1227 }
1228
1229 static void mlx4_close_hca(struct mlx4_dev *dev)
1230 {
1231         unmap_bf_area(dev);
1232         if (mlx4_is_slave(dev))
1233                 mlx4_slave_exit(dev);
1234         else {
1235                 mlx4_CLOSE_HCA(dev, 0);
1236                 mlx4_free_icms(dev);
1237                 mlx4_UNMAP_FA(dev);
1238                 mlx4_free_icm(dev, mlx4_priv(dev)->fw.fw_icm, 0);
1239         }
1240 }
1241
1242 static int mlx4_init_slave(struct mlx4_dev *dev)
1243 {
1244         struct mlx4_priv *priv = mlx4_priv(dev);
1245         u64 dma = (u64) priv->mfunc.vhcr_dma;
1246         int num_of_reset_retries = NUM_OF_RESET_RETRIES;
1247         int ret_from_reset = 0;
1248         u32 slave_read;
1249         u32 cmd_channel_ver;
1250
1251         mutex_lock(&priv->cmd.slave_cmd_mutex);
1252         priv->cmd.max_cmds = 1;
1253         mlx4_warn(dev, "Sending reset\n");
1254         ret_from_reset = mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0,
1255                                        MLX4_COMM_TIME);
1256         /* if we are in the middle of flr the slave will try
1257          * NUM_OF_RESET_RETRIES times before leaving.*/
1258         if (ret_from_reset) {
1259                 if (MLX4_DELAY_RESET_SLAVE == ret_from_reset) {
1260                         msleep(SLEEP_TIME_IN_RESET);
1261                         while (ret_from_reset && num_of_reset_retries) {
1262                                 mlx4_warn(dev, "slave is currently in the"
1263                                           "middle of FLR. retrying..."
1264                                           "(try num:%d)\n",
1265                                           (NUM_OF_RESET_RETRIES -
1266                                            num_of_reset_retries  + 1));
1267                                 ret_from_reset =
1268                                         mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET,
1269                                                       0, MLX4_COMM_TIME);
1270                                 num_of_reset_retries = num_of_reset_retries - 1;
1271                         }
1272                 } else
1273                         goto err;
1274         }
1275
1276         /* check the driver version - the slave I/F revision
1277          * must match the master's */
1278         slave_read = swab32(readl(&priv->mfunc.comm->slave_read));
1279         cmd_channel_ver = mlx4_comm_get_version();
1280
1281         if (MLX4_COMM_GET_IF_REV(cmd_channel_ver) !=
1282                 MLX4_COMM_GET_IF_REV(slave_read)) {
1283                 mlx4_err(dev, "slave driver version is not supported"
1284                          " by the master\n");
1285                 goto err;
1286         }
1287
1288         mlx4_warn(dev, "Sending vhcr0\n");
1289         if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR0, dma >> 48,
1290                                                     MLX4_COMM_TIME))
1291                 goto err;
1292         if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR1, dma >> 32,
1293                                                     MLX4_COMM_TIME))
1294                 goto err;
1295         if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR2, dma >> 16,
1296                                                     MLX4_COMM_TIME))
1297                 goto err;
1298         if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR_EN, dma, MLX4_COMM_TIME))
1299                 goto err;
1300
1301         mutex_unlock(&priv->cmd.slave_cmd_mutex);
1302         return 0;
1303
1304 err:
1305         mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0, 0);
1306         mutex_unlock(&priv->cmd.slave_cmd_mutex);
1307         return -EIO;
1308 }
1309
1310 static void mlx4_parav_master_pf_caps(struct mlx4_dev *dev)
1311 {
1312         int i;
1313
1314         for (i = 1; i <= dev->caps.num_ports; i++) {
1315                 dev->caps.gid_table_len[i] = 1;
1316                 dev->caps.pkey_table_len[i] =
1317                         dev->phys_caps.pkey_phys_table_len[i] - 1;
1318         }
1319 }
1320
1321 static int choose_log_fs_mgm_entry_size(int qp_per_entry)
1322 {
1323         int i = MLX4_MIN_MGM_LOG_ENTRY_SIZE;
1324
1325         for (i = MLX4_MIN_MGM_LOG_ENTRY_SIZE; i <= MLX4_MAX_MGM_LOG_ENTRY_SIZE;
1326               i++) {
1327                 if (qp_per_entry <= 4 * ((1 << i) / 16 - 2))
1328                         break;
1329         }
1330
1331         return (i <= MLX4_MAX_MGM_LOG_ENTRY_SIZE) ? i : -1;
1332 }
1333
1334 static void choose_steering_mode(struct mlx4_dev *dev,
1335                                  struct mlx4_dev_cap *dev_cap)
1336 {
1337         if (mlx4_log_num_mgm_entry_size == -1 &&
1338             dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_FS_EN &&
1339             (!mlx4_is_mfunc(dev) ||
1340              (dev_cap->fs_max_num_qp_per_entry >= (num_vfs + 1))) &&
1341             choose_log_fs_mgm_entry_size(dev_cap->fs_max_num_qp_per_entry) >=
1342                 MLX4_MIN_MGM_LOG_ENTRY_SIZE) {
1343                 dev->oper_log_mgm_entry_size =
1344                         choose_log_fs_mgm_entry_size(dev_cap->fs_max_num_qp_per_entry);
1345                 dev->caps.steering_mode = MLX4_STEERING_MODE_DEVICE_MANAGED;
1346                 dev->caps.num_qp_per_mgm = dev_cap->fs_max_num_qp_per_entry;
1347                 dev->caps.fs_log_max_ucast_qp_range_size =
1348                         dev_cap->fs_log_max_ucast_qp_range_size;
1349         } else {
1350                 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER &&
1351                     dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER)
1352                         dev->caps.steering_mode = MLX4_STEERING_MODE_B0;
1353                 else {
1354                         dev->caps.steering_mode = MLX4_STEERING_MODE_A0;
1355
1356                         if (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER ||
1357                             dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER)
1358                                 mlx4_warn(dev, "Must have both UC_STEER and MC_STEER flags "
1359                                           "set to use B0 steering. Falling back to A0 steering mode.\n");
1360                 }
1361                 dev->oper_log_mgm_entry_size =
1362                         mlx4_log_num_mgm_entry_size > 0 ?
1363                         mlx4_log_num_mgm_entry_size :
1364                         MLX4_DEFAULT_MGM_LOG_ENTRY_SIZE;
1365                 dev->caps.num_qp_per_mgm = mlx4_get_qp_per_mgm(dev);
1366         }
1367         mlx4_dbg(dev, "Steering mode is: %s, oper_log_mgm_entry_size = %d, "
1368                  "modparam log_num_mgm_entry_size = %d\n",
1369                  mlx4_steering_mode_str(dev->caps.steering_mode),
1370                  dev->oper_log_mgm_entry_size,
1371                  mlx4_log_num_mgm_entry_size);
1372 }
1373
1374 static int mlx4_init_hca(struct mlx4_dev *dev)
1375 {
1376         struct mlx4_priv          *priv = mlx4_priv(dev);
1377         struct mlx4_adapter        adapter;
1378         struct mlx4_dev_cap        dev_cap;
1379         struct mlx4_mod_stat_cfg   mlx4_cfg;
1380         struct mlx4_profile        profile;
1381         struct mlx4_init_hca_param init_hca;
1382         u64 icm_size;
1383         int err;
1384
1385         if (!mlx4_is_slave(dev)) {
1386                 err = mlx4_QUERY_FW(dev);
1387                 if (err) {
1388                         if (err == -EACCES)
1389                                 mlx4_info(dev, "non-primary physical function, skipping.\n");
1390                         else
1391                                 mlx4_err(dev, "QUERY_FW command failed, aborting.\n");
1392                         return err;
1393                 }
1394
1395                 err = mlx4_load_fw(dev);
1396                 if (err) {
1397                         mlx4_err(dev, "Failed to start FW, aborting.\n");
1398                         return err;
1399                 }
1400
1401                 mlx4_cfg.log_pg_sz_m = 1;
1402                 mlx4_cfg.log_pg_sz = 0;
1403                 err = mlx4_MOD_STAT_CFG(dev, &mlx4_cfg);
1404                 if (err)
1405                         mlx4_warn(dev, "Failed to override log_pg_sz parameter\n");
1406
1407                 err = mlx4_dev_cap(dev, &dev_cap);
1408                 if (err) {
1409                         mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
1410                         goto err_stop_fw;
1411                 }
1412
1413                 choose_steering_mode(dev, &dev_cap);
1414
1415                 if (mlx4_is_master(dev))
1416                         mlx4_parav_master_pf_caps(dev);
1417
1418                 profile = default_profile;
1419                 if (dev->caps.steering_mode ==
1420                     MLX4_STEERING_MODE_DEVICE_MANAGED)
1421                         profile.num_mcg = MLX4_FS_NUM_MCG;
1422
1423                 icm_size = mlx4_make_profile(dev, &profile, &dev_cap,
1424                                              &init_hca);
1425                 if ((long long) icm_size < 0) {
1426                         err = icm_size;
1427                         goto err_stop_fw;
1428                 }
1429
1430                 dev->caps.max_fmr_maps = (1 << (32 - ilog2(dev->caps.num_mpts))) - 1;
1431
1432                 init_hca.log_uar_sz = ilog2(dev->caps.num_uars);
1433                 init_hca.uar_page_sz = PAGE_SHIFT - 12;
1434
1435                 err = mlx4_init_icm(dev, &dev_cap, &init_hca, icm_size);
1436                 if (err)
1437                         goto err_stop_fw;
1438
1439                 err = mlx4_INIT_HCA(dev, &init_hca);
1440                 if (err) {
1441                         mlx4_err(dev, "INIT_HCA command failed, aborting.\n");
1442                         goto err_free_icm;
1443                 }
1444         } else {
1445                 err = mlx4_init_slave(dev);
1446                 if (err) {
1447                         mlx4_err(dev, "Failed to initialize slave\n");
1448                         return err;
1449                 }
1450
1451                 err = mlx4_slave_cap(dev);
1452                 if (err) {
1453                         mlx4_err(dev, "Failed to obtain slave caps\n");
1454                         goto err_close;
1455                 }
1456         }
1457
1458         if (map_bf_area(dev))
1459                 mlx4_dbg(dev, "Failed to map blue flame area\n");
1460
1461         /*Only the master set the ports, all the rest got it from it.*/
1462         if (!mlx4_is_slave(dev))
1463                 mlx4_set_port_mask(dev);
1464
1465         err = mlx4_QUERY_ADAPTER(dev, &adapter);
1466         if (err) {
1467                 mlx4_err(dev, "QUERY_ADAPTER command failed, aborting.\n");
1468                 goto unmap_bf;
1469         }
1470
1471         priv->eq_table.inta_pin = adapter.inta_pin;
1472         memcpy(dev->board_id, adapter.board_id, sizeof dev->board_id);
1473
1474         return 0;
1475
1476 unmap_bf:
1477         unmap_bf_area(dev);
1478
1479 err_close:
1480         if (mlx4_is_slave(dev))
1481                 mlx4_slave_exit(dev);
1482         else
1483                 mlx4_CLOSE_HCA(dev, 0);
1484
1485 err_free_icm:
1486         if (!mlx4_is_slave(dev))
1487                 mlx4_free_icms(dev);
1488
1489 err_stop_fw:
1490         if (!mlx4_is_slave(dev)) {
1491                 mlx4_UNMAP_FA(dev);
1492                 mlx4_free_icm(dev, priv->fw.fw_icm, 0);
1493         }
1494         return err;
1495 }
1496
1497 static int mlx4_init_counters_table(struct mlx4_dev *dev)
1498 {
1499         struct mlx4_priv *priv = mlx4_priv(dev);
1500         int nent;
1501
1502         if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS))
1503                 return -ENOENT;
1504
1505         nent = dev->caps.max_counters;
1506         return mlx4_bitmap_init(&priv->counters_bitmap, nent, nent - 1, 0, 0);
1507 }
1508
1509 static void mlx4_cleanup_counters_table(struct mlx4_dev *dev)
1510 {
1511         mlx4_bitmap_cleanup(&mlx4_priv(dev)->counters_bitmap);
1512 }
1513
1514 int __mlx4_counter_alloc(struct mlx4_dev *dev, u32 *idx)
1515 {
1516         struct mlx4_priv *priv = mlx4_priv(dev);
1517
1518         if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS))
1519                 return -ENOENT;
1520
1521         *idx = mlx4_bitmap_alloc(&priv->counters_bitmap);
1522         if (*idx == -1)
1523                 return -ENOMEM;
1524
1525         return 0;
1526 }
1527
1528 int mlx4_counter_alloc(struct mlx4_dev *dev, u32 *idx)
1529 {
1530         u64 out_param;
1531         int err;
1532
1533         if (mlx4_is_mfunc(dev)) {
1534                 err = mlx4_cmd_imm(dev, 0, &out_param, RES_COUNTER,
1535                                    RES_OP_RESERVE, MLX4_CMD_ALLOC_RES,
1536                                    MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
1537                 if (!err)
1538                         *idx = get_param_l(&out_param);
1539
1540                 return err;
1541         }
1542         return __mlx4_counter_alloc(dev, idx);
1543 }
1544 EXPORT_SYMBOL_GPL(mlx4_counter_alloc);
1545
1546 void __mlx4_counter_free(struct mlx4_dev *dev, u32 idx)
1547 {
1548         mlx4_bitmap_free(&mlx4_priv(dev)->counters_bitmap, idx);
1549         return;
1550 }
1551
1552 void mlx4_counter_free(struct mlx4_dev *dev, u32 idx)
1553 {
1554         u64 in_param;
1555
1556         if (mlx4_is_mfunc(dev)) {
1557                 set_param_l(&in_param, idx);
1558                 mlx4_cmd(dev, in_param, RES_COUNTER, RES_OP_RESERVE,
1559                          MLX4_CMD_FREE_RES, MLX4_CMD_TIME_CLASS_A,
1560                          MLX4_CMD_WRAPPED);
1561                 return;
1562         }
1563         __mlx4_counter_free(dev, idx);
1564 }
1565 EXPORT_SYMBOL_GPL(mlx4_counter_free);
1566
1567 static int mlx4_setup_hca(struct mlx4_dev *dev)
1568 {
1569         struct mlx4_priv *priv = mlx4_priv(dev);
1570         int err;
1571         int port;
1572         __be32 ib_port_default_caps;
1573
1574         err = mlx4_init_uar_table(dev);
1575         if (err) {
1576                 mlx4_err(dev, "Failed to initialize "
1577                          "user access region table, aborting.\n");
1578                 return err;
1579         }
1580
1581         err = mlx4_uar_alloc(dev, &priv->driver_uar);
1582         if (err) {
1583                 mlx4_err(dev, "Failed to allocate driver access region, "
1584                          "aborting.\n");
1585                 goto err_uar_table_free;
1586         }
1587
1588         priv->kar = ioremap((phys_addr_t) priv->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
1589         if (!priv->kar) {
1590                 mlx4_err(dev, "Couldn't map kernel access region, "
1591                          "aborting.\n");
1592                 err = -ENOMEM;
1593                 goto err_uar_free;
1594         }
1595
1596         err = mlx4_init_pd_table(dev);
1597         if (err) {
1598                 mlx4_err(dev, "Failed to initialize "
1599                          "protection domain table, aborting.\n");
1600                 goto err_kar_unmap;
1601         }
1602
1603         err = mlx4_init_xrcd_table(dev);
1604         if (err) {
1605                 mlx4_err(dev, "Failed to initialize "
1606                          "reliable connection domain table, aborting.\n");
1607                 goto err_pd_table_free;
1608         }
1609
1610         err = mlx4_init_mr_table(dev);
1611         if (err) {
1612                 mlx4_err(dev, "Failed to initialize "
1613                          "memory region table, aborting.\n");
1614                 goto err_xrcd_table_free;
1615         }
1616
1617         err = mlx4_init_eq_table(dev);
1618         if (err) {
1619                 mlx4_err(dev, "Failed to initialize "
1620                          "event queue table, aborting.\n");
1621                 goto err_mr_table_free;
1622         }
1623
1624         err = mlx4_cmd_use_events(dev);
1625         if (err) {
1626                 mlx4_err(dev, "Failed to switch to event-driven "
1627                          "firmware commands, aborting.\n");
1628                 goto err_eq_table_free;
1629         }
1630
1631         err = mlx4_NOP(dev);
1632         if (err) {
1633                 if (dev->flags & MLX4_FLAG_MSI_X) {
1634                         mlx4_warn(dev, "NOP command failed to generate MSI-X "
1635                                   "interrupt IRQ %d).\n",
1636                                   priv->eq_table.eq[dev->caps.num_comp_vectors].irq);
1637                         mlx4_warn(dev, "Trying again without MSI-X.\n");
1638                 } else {
1639                         mlx4_err(dev, "NOP command failed to generate interrupt "
1640                                  "(IRQ %d), aborting.\n",
1641                                  priv->eq_table.eq[dev->caps.num_comp_vectors].irq);
1642                         mlx4_err(dev, "BIOS or ACPI interrupt routing problem?\n");
1643                 }
1644
1645                 goto err_cmd_poll;
1646         }
1647
1648         mlx4_dbg(dev, "NOP command IRQ test passed\n");
1649
1650         err = mlx4_init_cq_table(dev);
1651         if (err) {
1652                 mlx4_err(dev, "Failed to initialize "
1653                          "completion queue table, aborting.\n");
1654                 goto err_cmd_poll;
1655         }
1656
1657         err = mlx4_init_srq_table(dev);
1658         if (err) {
1659                 mlx4_err(dev, "Failed to initialize "
1660                          "shared receive queue table, aborting.\n");
1661                 goto err_cq_table_free;
1662         }
1663
1664         err = mlx4_init_qp_table(dev);
1665         if (err) {
1666                 mlx4_err(dev, "Failed to initialize "
1667                          "queue pair table, aborting.\n");
1668                 goto err_srq_table_free;
1669         }
1670
1671         if (!mlx4_is_slave(dev)) {
1672                 err = mlx4_init_mcg_table(dev);
1673                 if (err) {
1674                         mlx4_err(dev, "Failed to initialize "
1675                                  "multicast group table, aborting.\n");
1676                         goto err_qp_table_free;
1677                 }
1678         }
1679
1680         err = mlx4_init_counters_table(dev);
1681         if (err && err != -ENOENT) {
1682                 mlx4_err(dev, "Failed to initialize counters table, aborting.\n");
1683                 goto err_mcg_table_free;
1684         }
1685
1686         if (!mlx4_is_slave(dev)) {
1687                 for (port = 1; port <= dev->caps.num_ports; port++) {
1688                         ib_port_default_caps = 0;
1689                         err = mlx4_get_port_ib_caps(dev, port,
1690                                                     &ib_port_default_caps);
1691                         if (err)
1692                                 mlx4_warn(dev, "failed to get port %d default "
1693                                           "ib capabilities (%d). Continuing "
1694                                           "with caps = 0\n", port, err);
1695                         dev->caps.ib_port_def_cap[port] = ib_port_default_caps;
1696
1697                         /* initialize per-slave default ib port capabilities */
1698                         if (mlx4_is_master(dev)) {
1699                                 int i;
1700                                 for (i = 0; i < dev->num_slaves; i++) {
1701                                         if (i == mlx4_master_func_num(dev))
1702                                                 continue;
1703                                         priv->mfunc.master.slave_state[i].ib_cap_mask[port] =
1704                                                         ib_port_default_caps;
1705                                 }
1706                         }
1707
1708                         if (mlx4_is_mfunc(dev))
1709                                 dev->caps.port_ib_mtu[port] = IB_MTU_2048;
1710                         else
1711                                 dev->caps.port_ib_mtu[port] = IB_MTU_4096;
1712
1713                         err = mlx4_SET_PORT(dev, port, mlx4_is_master(dev) ?
1714                                             dev->caps.pkey_table_len[port] : -1);
1715                         if (err) {
1716                                 mlx4_err(dev, "Failed to set port %d, aborting\n",
1717                                         port);
1718                                 goto err_counters_table_free;
1719                         }
1720                 }
1721         }
1722
1723         return 0;
1724
1725 err_counters_table_free:
1726         mlx4_cleanup_counters_table(dev);
1727
1728 err_mcg_table_free:
1729         mlx4_cleanup_mcg_table(dev);
1730
1731 err_qp_table_free:
1732         mlx4_cleanup_qp_table(dev);
1733
1734 err_srq_table_free:
1735         mlx4_cleanup_srq_table(dev);
1736
1737 err_cq_table_free:
1738         mlx4_cleanup_cq_table(dev);
1739
1740 err_cmd_poll:
1741         mlx4_cmd_use_polling(dev);
1742
1743 err_eq_table_free:
1744         mlx4_cleanup_eq_table(dev);
1745
1746 err_mr_table_free:
1747         mlx4_cleanup_mr_table(dev);
1748
1749 err_xrcd_table_free:
1750         mlx4_cleanup_xrcd_table(dev);
1751
1752 err_pd_table_free:
1753         mlx4_cleanup_pd_table(dev);
1754
1755 err_kar_unmap:
1756         iounmap(priv->kar);
1757
1758 err_uar_free:
1759         mlx4_uar_free(dev, &priv->driver_uar);
1760
1761 err_uar_table_free:
1762         mlx4_cleanup_uar_table(dev);
1763         return err;
1764 }
1765
1766 static void mlx4_enable_msi_x(struct mlx4_dev *dev)
1767 {
1768         struct mlx4_priv *priv = mlx4_priv(dev);
1769         struct msix_entry *entries;
1770         int nreq = min_t(int, dev->caps.num_ports *
1771                          min_t(int, netif_get_num_default_rss_queues() + 1,
1772                                MAX_MSIX_P_PORT) + MSIX_LEGACY_SZ, MAX_MSIX);
1773         int err;
1774         int i;
1775
1776         if (msi_x) {
1777                 nreq = min_t(int, dev->caps.num_eqs - dev->caps.reserved_eqs,
1778                              nreq);
1779
1780                 entries = kcalloc(nreq, sizeof *entries, GFP_KERNEL);
1781                 if (!entries)
1782                         goto no_msi;
1783
1784                 for (i = 0; i < nreq; ++i)
1785                         entries[i].entry = i;
1786
1787         retry:
1788                 err = pci_enable_msix(dev->pdev, entries, nreq);
1789                 if (err) {
1790                         /* Try again if at least 2 vectors are available */
1791                         if (err > 1) {
1792                                 mlx4_info(dev, "Requested %d vectors, "
1793                                           "but only %d MSI-X vectors available, "
1794                                           "trying again\n", nreq, err);
1795                                 nreq = err;
1796                                 goto retry;
1797                         }
1798                         kfree(entries);
1799                         goto no_msi;
1800                 }
1801
1802                 if (nreq <
1803                     MSIX_LEGACY_SZ + dev->caps.num_ports * MIN_MSIX_P_PORT) {
1804                         /*Working in legacy mode , all EQ's shared*/
1805                         dev->caps.comp_pool           = 0;
1806                         dev->caps.num_comp_vectors = nreq - 1;
1807                 } else {
1808                         dev->caps.comp_pool           = nreq - MSIX_LEGACY_SZ;
1809                         dev->caps.num_comp_vectors = MSIX_LEGACY_SZ - 1;
1810                 }
1811                 for (i = 0; i < nreq; ++i)
1812                         priv->eq_table.eq[i].irq = entries[i].vector;
1813
1814                 dev->flags |= MLX4_FLAG_MSI_X;
1815
1816                 kfree(entries);
1817                 return;
1818         }
1819
1820 no_msi:
1821         dev->caps.num_comp_vectors = 1;
1822         dev->caps.comp_pool        = 0;
1823
1824         for (i = 0; i < 2; ++i)
1825                 priv->eq_table.eq[i].irq = dev->pdev->irq;
1826 }
1827
1828 static int mlx4_init_port_info(struct mlx4_dev *dev, int port)
1829 {
1830         struct mlx4_port_info *info = &mlx4_priv(dev)->port[port];
1831         int err = 0;
1832
1833         info->dev = dev;
1834         info->port = port;
1835         if (!mlx4_is_slave(dev)) {
1836                 INIT_RADIX_TREE(&info->mac_tree, GFP_KERNEL);
1837                 mlx4_init_mac_table(dev, &info->mac_table);
1838                 mlx4_init_vlan_table(dev, &info->vlan_table);
1839                 info->base_qpn =
1840                         dev->caps.reserved_qps_base[MLX4_QP_REGION_ETH_ADDR] +
1841                         (port - 1) * (1 << log_num_mac);
1842         }
1843
1844         sprintf(info->dev_name, "mlx4_port%d", port);
1845         info->port_attr.attr.name = info->dev_name;
1846         if (mlx4_is_mfunc(dev))
1847                 info->port_attr.attr.mode = S_IRUGO;
1848         else {
1849                 info->port_attr.attr.mode = S_IRUGO | S_IWUSR;
1850                 info->port_attr.store     = set_port_type;
1851         }
1852         info->port_attr.show      = show_port_type;
1853         sysfs_attr_init(&info->port_attr.attr);
1854
1855         err = device_create_file(&dev->pdev->dev, &info->port_attr);
1856         if (err) {
1857                 mlx4_err(dev, "Failed to create file for port %d\n", port);
1858                 info->port = -1;
1859         }
1860
1861         sprintf(info->dev_mtu_name, "mlx4_port%d_mtu", port);
1862         info->port_mtu_attr.attr.name = info->dev_mtu_name;
1863         if (mlx4_is_mfunc(dev))
1864                 info->port_mtu_attr.attr.mode = S_IRUGO;
1865         else {
1866                 info->port_mtu_attr.attr.mode = S_IRUGO | S_IWUSR;
1867                 info->port_mtu_attr.store     = set_port_ib_mtu;
1868         }
1869         info->port_mtu_attr.show      = show_port_ib_mtu;
1870         sysfs_attr_init(&info->port_mtu_attr.attr);
1871
1872         err = device_create_file(&dev->pdev->dev, &info->port_mtu_attr);
1873         if (err) {
1874                 mlx4_err(dev, "Failed to create mtu file for port %d\n", port);
1875                 device_remove_file(&info->dev->pdev->dev, &info->port_attr);
1876                 info->port = -1;
1877         }
1878
1879         return err;
1880 }
1881
1882 static void mlx4_cleanup_port_info(struct mlx4_port_info *info)
1883 {
1884         if (info->port < 0)
1885                 return;
1886
1887         device_remove_file(&info->dev->pdev->dev, &info->port_attr);
1888         device_remove_file(&info->dev->pdev->dev, &info->port_mtu_attr);
1889 }
1890
1891 static int mlx4_init_steering(struct mlx4_dev *dev)
1892 {
1893         struct mlx4_priv *priv = mlx4_priv(dev);
1894         int num_entries = dev->caps.num_ports;
1895         int i, j;
1896
1897         priv->steer = kzalloc(sizeof(struct mlx4_steer) * num_entries, GFP_KERNEL);
1898         if (!priv->steer)
1899                 return -ENOMEM;
1900
1901         for (i = 0; i < num_entries; i++)
1902                 for (j = 0; j < MLX4_NUM_STEERS; j++) {
1903                         INIT_LIST_HEAD(&priv->steer[i].promisc_qps[j]);
1904                         INIT_LIST_HEAD(&priv->steer[i].steer_entries[j]);
1905                 }
1906         return 0;
1907 }
1908
1909 static void mlx4_clear_steering(struct mlx4_dev *dev)
1910 {
1911         struct mlx4_priv *priv = mlx4_priv(dev);
1912         struct mlx4_steer_index *entry, *tmp_entry;
1913         struct mlx4_promisc_qp *pqp, *tmp_pqp;
1914         int num_entries = dev->caps.num_ports;
1915         int i, j;
1916
1917         for (i = 0; i < num_entries; i++) {
1918                 for (j = 0; j < MLX4_NUM_STEERS; j++) {
1919                         list_for_each_entry_safe(pqp, tmp_pqp,
1920                                                  &priv->steer[i].promisc_qps[j],
1921                                                  list) {
1922                                 list_del(&pqp->list);
1923                                 kfree(pqp);
1924                         }
1925                         list_for_each_entry_safe(entry, tmp_entry,
1926                                                  &priv->steer[i].steer_entries[j],
1927                                                  list) {
1928                                 list_del(&entry->list);
1929                                 list_for_each_entry_safe(pqp, tmp_pqp,
1930                                                          &entry->duplicates,
1931                                                          list) {
1932                                         list_del(&pqp->list);
1933                                         kfree(pqp);
1934                                 }
1935                                 kfree(entry);
1936                         }
1937                 }
1938         }
1939         kfree(priv->steer);
1940 }
1941
1942 static int extended_func_num(struct pci_dev *pdev)
1943 {
1944         return PCI_SLOT(pdev->devfn) * 8 + PCI_FUNC(pdev->devfn);
1945 }
1946
1947 #define MLX4_OWNER_BASE 0x8069c
1948 #define MLX4_OWNER_SIZE 4
1949
1950 static int mlx4_get_ownership(struct mlx4_dev *dev)
1951 {
1952         void __iomem *owner;
1953         u32 ret;
1954
1955         if (pci_channel_offline(dev->pdev))
1956                 return -EIO;
1957
1958         owner = ioremap(pci_resource_start(dev->pdev, 0) + MLX4_OWNER_BASE,
1959                         MLX4_OWNER_SIZE);
1960         if (!owner) {
1961                 mlx4_err(dev, "Failed to obtain ownership bit\n");
1962                 return -ENOMEM;
1963         }
1964
1965         ret = readl(owner);
1966         iounmap(owner);
1967         return (int) !!ret;
1968 }
1969
1970 static void mlx4_free_ownership(struct mlx4_dev *dev)
1971 {
1972         void __iomem *owner;
1973
1974         if (pci_channel_offline(dev->pdev))
1975                 return;
1976
1977         owner = ioremap(pci_resource_start(dev->pdev, 0) + MLX4_OWNER_BASE,
1978                         MLX4_OWNER_SIZE);
1979         if (!owner) {
1980                 mlx4_err(dev, "Failed to obtain ownership bit\n");
1981                 return;
1982         }
1983         writel(0, owner);
1984         msleep(1000);
1985         iounmap(owner);
1986 }
1987
1988 static int __mlx4_init_one(struct pci_dev *pdev, int pci_dev_data)
1989 {
1990         struct mlx4_priv *priv;
1991         struct mlx4_dev *dev;
1992         int err;
1993         int port;
1994
1995         pr_info(DRV_NAME ": Initializing %s\n", pci_name(pdev));
1996
1997         err = pci_enable_device(pdev);
1998         if (err) {
1999                 dev_err(&pdev->dev, "Cannot enable PCI device, "
2000                         "aborting.\n");
2001                 return err;
2002         }
2003         if (num_vfs > MLX4_MAX_NUM_VF) {
2004                 printk(KERN_ERR "There are more VF's (%d) than allowed(%d)\n",
2005                        num_vfs, MLX4_MAX_NUM_VF);
2006                 return -EINVAL;
2007         }
2008         /*
2009          * Check for BARs.
2010          */
2011         if (!(pci_dev_data & MLX4_PCI_DEV_IS_VF) &&
2012             !(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
2013                 dev_err(&pdev->dev, "Missing DCS, aborting."
2014                         "(driver_data: 0x%x, pci_resource_flags(pdev, 0):0x%lx)\n",
2015                         pci_dev_data, pci_resource_flags(pdev, 0));
2016                 err = -ENODEV;
2017                 goto err_disable_pdev;
2018         }
2019         if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
2020                 dev_err(&pdev->dev, "Missing UAR, aborting.\n");
2021                 err = -ENODEV;
2022                 goto err_disable_pdev;
2023         }
2024
2025         err = pci_request_regions(pdev, DRV_NAME);
2026         if (err) {
2027                 dev_err(&pdev->dev, "Couldn't get PCI resources, aborting\n");
2028                 goto err_disable_pdev;
2029         }
2030
2031         pci_set_master(pdev);
2032
2033         err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
2034         if (err) {
2035                 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n");
2036                 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
2037                 if (err) {
2038                         dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n");
2039                         goto err_release_regions;
2040                 }
2041         }
2042         err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
2043         if (err) {
2044                 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit "
2045                          "consistent PCI DMA mask.\n");
2046                 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
2047                 if (err) {
2048                         dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
2049                                 "aborting.\n");
2050                         goto err_release_regions;
2051                 }
2052         }
2053
2054         /* Allow large DMA segments, up to the firmware limit of 1 GB */
2055         dma_set_max_seg_size(&pdev->dev, 1024 * 1024 * 1024);
2056
2057         priv = kzalloc(sizeof(*priv), GFP_KERNEL);
2058         if (!priv) {
2059                 err = -ENOMEM;
2060                 goto err_release_regions;
2061         }
2062
2063         dev       = &priv->dev;
2064         dev->pdev = pdev;
2065         INIT_LIST_HEAD(&priv->ctx_list);
2066         spin_lock_init(&priv->ctx_lock);
2067
2068         mutex_init(&priv->port_mutex);
2069
2070         INIT_LIST_HEAD(&priv->pgdir_list);
2071         mutex_init(&priv->pgdir_mutex);
2072
2073         INIT_LIST_HEAD(&priv->bf_list);
2074         mutex_init(&priv->bf_mutex);
2075
2076         dev->rev_id = pdev->revision;
2077         /* Detect if this device is a virtual function */
2078         if (pci_dev_data & MLX4_PCI_DEV_IS_VF) {
2079                 /* When acting as pf, we normally skip vfs unless explicitly
2080                  * requested to probe them. */
2081                 if (num_vfs && extended_func_num(pdev) > probe_vf) {
2082                         mlx4_warn(dev, "Skipping virtual function:%d\n",
2083                                                 extended_func_num(pdev));
2084                         err = -ENODEV;
2085                         goto err_free_dev;
2086                 }
2087                 mlx4_warn(dev, "Detected virtual function - running in slave mode\n");
2088                 dev->flags |= MLX4_FLAG_SLAVE;
2089         } else {
2090                 /* We reset the device and enable SRIOV only for physical
2091                  * devices.  Try to claim ownership on the device;
2092                  * if already taken, skip -- do not allow multiple PFs */
2093                 err = mlx4_get_ownership(dev);
2094                 if (err) {
2095                         if (err < 0)
2096                                 goto err_free_dev;
2097                         else {
2098                                 mlx4_warn(dev, "Multiple PFs not yet supported."
2099                                           " Skipping PF.\n");
2100                                 err = -EINVAL;
2101                                 goto err_free_dev;
2102                         }
2103                 }
2104
2105                 if (num_vfs) {
2106                         mlx4_warn(dev, "Enabling SR-IOV with %d VFs\n", num_vfs);
2107                         err = pci_enable_sriov(pdev, num_vfs);
2108                         if (err) {
2109                                 mlx4_err(dev, "Failed to enable SR-IOV, continuing without SR-IOV (err = %d).\n",
2110                                          err);
2111                                 err = 0;
2112                         } else {
2113                                 mlx4_warn(dev, "Running in master mode\n");
2114                                 dev->flags |= MLX4_FLAG_SRIOV |
2115                                               MLX4_FLAG_MASTER;
2116                                 dev->num_vfs = num_vfs;
2117                         }
2118                 }
2119
2120                 /*
2121                  * Now reset the HCA before we touch the PCI capabilities or
2122                  * attempt a firmware command, since a boot ROM may have left
2123                  * the HCA in an undefined state.
2124                  */
2125                 err = mlx4_reset(dev);
2126                 if (err) {
2127                         mlx4_err(dev, "Failed to reset HCA, aborting.\n");
2128                         goto err_rel_own;
2129                 }
2130         }
2131
2132 slave_start:
2133         err = mlx4_cmd_init(dev);
2134         if (err) {
2135                 mlx4_err(dev, "Failed to init command interface, aborting.\n");
2136                 goto err_sriov;
2137         }
2138
2139         /* In slave functions, the communication channel must be initialized
2140          * before posting commands. Also, init num_slaves before calling
2141          * mlx4_init_hca */
2142         if (mlx4_is_mfunc(dev)) {
2143                 if (mlx4_is_master(dev))
2144                         dev->num_slaves = MLX4_MAX_NUM_SLAVES;
2145                 else {
2146                         dev->num_slaves = 0;
2147                         err = mlx4_multi_func_init(dev);
2148                         if (err) {
2149                                 mlx4_err(dev, "Failed to init slave mfunc"
2150                                          " interface, aborting.\n");
2151                                 goto err_cmd;
2152                         }
2153                 }
2154         }
2155
2156         err = mlx4_init_hca(dev);
2157         if (err) {
2158                 if (err == -EACCES) {
2159                         /* Not primary Physical function
2160                          * Running in slave mode */
2161                         mlx4_cmd_cleanup(dev);
2162                         dev->flags |= MLX4_FLAG_SLAVE;
2163                         dev->flags &= ~MLX4_FLAG_MASTER;
2164                         goto slave_start;
2165                 } else
2166                         goto err_mfunc;
2167         }
2168
2169         /* In master functions, the communication channel must be initialized
2170          * after obtaining its address from fw */
2171         if (mlx4_is_master(dev)) {
2172                 err = mlx4_multi_func_init(dev);
2173                 if (err) {
2174                         mlx4_err(dev, "Failed to init master mfunc"
2175                                  "interface, aborting.\n");
2176                         goto err_close;
2177                 }
2178         }
2179
2180         err = mlx4_alloc_eq_table(dev);
2181         if (err)
2182                 goto err_master_mfunc;
2183
2184         priv->msix_ctl.pool_bm = 0;
2185         mutex_init(&priv->msix_ctl.pool_lock);
2186
2187         mlx4_enable_msi_x(dev);
2188         if ((mlx4_is_mfunc(dev)) &&
2189             !(dev->flags & MLX4_FLAG_MSI_X)) {
2190                 err = -ENOSYS;
2191                 mlx4_err(dev, "INTx is not supported in multi-function mode."
2192                          " aborting.\n");
2193                 goto err_free_eq;
2194         }
2195
2196         if (!mlx4_is_slave(dev)) {
2197                 err = mlx4_init_steering(dev);
2198                 if (err)
2199                         goto err_free_eq;
2200         }
2201
2202         err = mlx4_setup_hca(dev);
2203         if (err == -EBUSY && (dev->flags & MLX4_FLAG_MSI_X) &&
2204             !mlx4_is_mfunc(dev)) {
2205                 dev->flags &= ~MLX4_FLAG_MSI_X;
2206                 dev->caps.num_comp_vectors = 1;
2207                 dev->caps.comp_pool        = 0;
2208                 pci_disable_msix(pdev);
2209                 err = mlx4_setup_hca(dev);
2210         }
2211
2212         if (err)
2213                 goto err_steer;
2214
2215         for (port = 1; port <= dev->caps.num_ports; port++) {
2216                 err = mlx4_init_port_info(dev, port);
2217                 if (err)
2218                         goto err_port;
2219         }
2220
2221         err = mlx4_register_device(dev);
2222         if (err)
2223                 goto err_port;
2224
2225         mlx4_sense_init(dev);
2226         mlx4_start_sense(dev);
2227
2228         priv->pci_dev_data = pci_dev_data;
2229         pci_set_drvdata(pdev, dev);
2230
2231         return 0;
2232
2233 err_port:
2234         for (--port; port >= 1; --port)
2235                 mlx4_cleanup_port_info(&priv->port[port]);
2236
2237         mlx4_cleanup_counters_table(dev);
2238         mlx4_cleanup_mcg_table(dev);
2239         mlx4_cleanup_qp_table(dev);
2240         mlx4_cleanup_srq_table(dev);
2241         mlx4_cleanup_cq_table(dev);
2242         mlx4_cmd_use_polling(dev);
2243         mlx4_cleanup_eq_table(dev);
2244         mlx4_cleanup_mr_table(dev);
2245         mlx4_cleanup_xrcd_table(dev);
2246         mlx4_cleanup_pd_table(dev);
2247         mlx4_cleanup_uar_table(dev);
2248
2249 err_steer:
2250         if (!mlx4_is_slave(dev))
2251                 mlx4_clear_steering(dev);
2252
2253 err_free_eq:
2254         mlx4_free_eq_table(dev);
2255
2256 err_master_mfunc:
2257         if (mlx4_is_master(dev))
2258                 mlx4_multi_func_cleanup(dev);
2259
2260 err_close:
2261         if (dev->flags & MLX4_FLAG_MSI_X)
2262                 pci_disable_msix(pdev);
2263
2264         mlx4_close_hca(dev);
2265
2266 err_mfunc:
2267         if (mlx4_is_slave(dev))
2268                 mlx4_multi_func_cleanup(dev);
2269
2270 err_cmd:
2271         mlx4_cmd_cleanup(dev);
2272
2273 err_sriov:
2274         if (dev->flags & MLX4_FLAG_SRIOV)
2275                 pci_disable_sriov(pdev);
2276
2277 err_rel_own:
2278         if (!mlx4_is_slave(dev))
2279                 mlx4_free_ownership(dev);
2280
2281 err_free_dev:
2282         kfree(priv);
2283
2284 err_release_regions:
2285         pci_release_regions(pdev);
2286
2287 err_disable_pdev:
2288         pci_disable_device(pdev);
2289         pci_set_drvdata(pdev, NULL);
2290         return err;
2291 }
2292
2293 static int mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
2294 {
2295         printk_once(KERN_INFO "%s", mlx4_version);
2296
2297         return __mlx4_init_one(pdev, id->driver_data);
2298 }
2299
2300 static void mlx4_remove_one(struct pci_dev *pdev)
2301 {
2302         struct mlx4_dev  *dev  = pci_get_drvdata(pdev);
2303         struct mlx4_priv *priv = mlx4_priv(dev);
2304         int p;
2305
2306         if (dev) {
2307                 /* in SRIOV it is not allowed to unload the pf's
2308                  * driver while there are alive vf's */
2309                 if (mlx4_is_master(dev)) {
2310                         if (mlx4_how_many_lives_vf(dev))
2311                                 printk(KERN_ERR "Removing PF when there are assigned VF's !!!\n");
2312                 }
2313                 mlx4_stop_sense(dev);
2314                 mlx4_unregister_device(dev);
2315
2316                 for (p = 1; p <= dev->caps.num_ports; p++) {
2317                         mlx4_cleanup_port_info(&priv->port[p]);
2318                         mlx4_CLOSE_PORT(dev, p);
2319                 }
2320
2321                 if (mlx4_is_master(dev))
2322                         mlx4_free_resource_tracker(dev,
2323                                                    RES_TR_FREE_SLAVES_ONLY);
2324
2325                 mlx4_cleanup_counters_table(dev);
2326                 mlx4_cleanup_mcg_table(dev);
2327                 mlx4_cleanup_qp_table(dev);
2328                 mlx4_cleanup_srq_table(dev);
2329                 mlx4_cleanup_cq_table(dev);
2330                 mlx4_cmd_use_polling(dev);
2331                 mlx4_cleanup_eq_table(dev);
2332                 mlx4_cleanup_mr_table(dev);
2333                 mlx4_cleanup_xrcd_table(dev);
2334                 mlx4_cleanup_pd_table(dev);
2335
2336                 if (mlx4_is_master(dev))
2337                         mlx4_free_resource_tracker(dev,
2338                                                    RES_TR_FREE_STRUCTS_ONLY);
2339
2340                 iounmap(priv->kar);
2341                 mlx4_uar_free(dev, &priv->driver_uar);
2342                 mlx4_cleanup_uar_table(dev);
2343                 if (!mlx4_is_slave(dev))
2344                         mlx4_clear_steering(dev);
2345                 mlx4_free_eq_table(dev);
2346                 if (mlx4_is_master(dev))
2347                         mlx4_multi_func_cleanup(dev);
2348                 mlx4_close_hca(dev);
2349                 if (mlx4_is_slave(dev))
2350                         mlx4_multi_func_cleanup(dev);
2351                 mlx4_cmd_cleanup(dev);
2352
2353                 if (dev->flags & MLX4_FLAG_MSI_X)
2354                         pci_disable_msix(pdev);
2355                 if (dev->flags & MLX4_FLAG_SRIOV) {
2356                         mlx4_warn(dev, "Disabling SR-IOV\n");
2357                         pci_disable_sriov(pdev);
2358                 }
2359
2360                 if (!mlx4_is_slave(dev))
2361                         mlx4_free_ownership(dev);
2362
2363                 kfree(dev->caps.qp0_tunnel);
2364                 kfree(dev->caps.qp0_proxy);
2365                 kfree(dev->caps.qp1_tunnel);
2366                 kfree(dev->caps.qp1_proxy);
2367
2368                 kfree(priv);
2369                 pci_release_regions(pdev);
2370                 pci_disable_device(pdev);
2371                 pci_set_drvdata(pdev, NULL);
2372         }
2373 }
2374
2375 int mlx4_restart_one(struct pci_dev *pdev)
2376 {
2377         struct mlx4_dev  *dev  = pci_get_drvdata(pdev);
2378         struct mlx4_priv *priv = mlx4_priv(dev);
2379         int               pci_dev_data;
2380
2381         pci_dev_data = priv->pci_dev_data;
2382         mlx4_remove_one(pdev);
2383         return __mlx4_init_one(pdev, pci_dev_data);
2384 }
2385
2386 static DEFINE_PCI_DEVICE_TABLE(mlx4_pci_table) = {
2387         /* MT25408 "Hermon" SDR */
2388         { PCI_VDEVICE(MELLANOX, 0x6340), MLX4_PCI_DEV_FORCE_SENSE_PORT },
2389         /* MT25408 "Hermon" DDR */
2390         { PCI_VDEVICE(MELLANOX, 0x634a), MLX4_PCI_DEV_FORCE_SENSE_PORT },
2391         /* MT25408 "Hermon" QDR */
2392         { PCI_VDEVICE(MELLANOX, 0x6354), MLX4_PCI_DEV_FORCE_SENSE_PORT },
2393         /* MT25408 "Hermon" DDR PCIe gen2 */
2394         { PCI_VDEVICE(MELLANOX, 0x6732), MLX4_PCI_DEV_FORCE_SENSE_PORT },
2395         /* MT25408 "Hermon" QDR PCIe gen2 */
2396         { PCI_VDEVICE(MELLANOX, 0x673c), MLX4_PCI_DEV_FORCE_SENSE_PORT },
2397         /* MT25408 "Hermon" EN 10GigE */
2398         { PCI_VDEVICE(MELLANOX, 0x6368), MLX4_PCI_DEV_FORCE_SENSE_PORT },
2399         /* MT25408 "Hermon" EN 10GigE PCIe gen2 */
2400         { PCI_VDEVICE(MELLANOX, 0x6750), MLX4_PCI_DEV_FORCE_SENSE_PORT },
2401         /* MT25458 ConnectX EN 10GBASE-T 10GigE */
2402         { PCI_VDEVICE(MELLANOX, 0x6372), MLX4_PCI_DEV_FORCE_SENSE_PORT },
2403         /* MT25458 ConnectX EN 10GBASE-T+Gen2 10GigE */
2404         { PCI_VDEVICE(MELLANOX, 0x675a), MLX4_PCI_DEV_FORCE_SENSE_PORT },
2405         /* MT26468 ConnectX EN 10GigE PCIe gen2*/
2406         { PCI_VDEVICE(MELLANOX, 0x6764), MLX4_PCI_DEV_FORCE_SENSE_PORT },
2407         /* MT26438 ConnectX EN 40GigE PCIe gen2 5GT/s */
2408         { PCI_VDEVICE(MELLANOX, 0x6746), MLX4_PCI_DEV_FORCE_SENSE_PORT },
2409         /* MT26478 ConnectX2 40GigE PCIe gen2 */
2410         { PCI_VDEVICE(MELLANOX, 0x676e), MLX4_PCI_DEV_FORCE_SENSE_PORT },
2411         /* MT25400 Family [ConnectX-2 Virtual Function] */
2412         { PCI_VDEVICE(MELLANOX, 0x1002), MLX4_PCI_DEV_IS_VF },
2413         /* MT27500 Family [ConnectX-3] */
2414         { PCI_VDEVICE(MELLANOX, 0x1003), 0 },
2415         /* MT27500 Family [ConnectX-3 Virtual Function] */
2416         { PCI_VDEVICE(MELLANOX, 0x1004), MLX4_PCI_DEV_IS_VF },
2417         { PCI_VDEVICE(MELLANOX, 0x1005), 0 }, /* MT27510 Family */
2418         { PCI_VDEVICE(MELLANOX, 0x1006), 0 }, /* MT27511 Family */
2419         { PCI_VDEVICE(MELLANOX, 0x1007), 0 }, /* MT27520 Family */
2420         { PCI_VDEVICE(MELLANOX, 0x1008), 0 }, /* MT27521 Family */
2421         { PCI_VDEVICE(MELLANOX, 0x1009), 0 }, /* MT27530 Family */
2422         { PCI_VDEVICE(MELLANOX, 0x100a), 0 }, /* MT27531 Family */
2423         { PCI_VDEVICE(MELLANOX, 0x100b), 0 }, /* MT27540 Family */
2424         { PCI_VDEVICE(MELLANOX, 0x100c), 0 }, /* MT27541 Family */
2425         { PCI_VDEVICE(MELLANOX, 0x100d), 0 }, /* MT27550 Family */
2426         { PCI_VDEVICE(MELLANOX, 0x100e), 0 }, /* MT27551 Family */
2427         { PCI_VDEVICE(MELLANOX, 0x100f), 0 }, /* MT27560 Family */
2428         { PCI_VDEVICE(MELLANOX, 0x1010), 0 }, /* MT27561 Family */
2429         { 0, }
2430 };
2431
2432 MODULE_DEVICE_TABLE(pci, mlx4_pci_table);
2433
2434 static pci_ers_result_t mlx4_pci_err_detected(struct pci_dev *pdev,
2435                                               pci_channel_state_t state)
2436 {
2437         mlx4_remove_one(pdev);
2438
2439         return state == pci_channel_io_perm_failure ?
2440                 PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_NEED_RESET;
2441 }
2442
2443 static pci_ers_result_t mlx4_pci_slot_reset(struct pci_dev *pdev)
2444 {
2445         int ret = __mlx4_init_one(pdev, 0);
2446
2447         return ret ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
2448 }
2449
2450 static const struct pci_error_handlers mlx4_err_handler = {
2451         .error_detected = mlx4_pci_err_detected,
2452         .slot_reset     = mlx4_pci_slot_reset,
2453 };
2454
2455 static struct pci_driver mlx4_driver = {
2456         .name           = DRV_NAME,
2457         .id_table       = mlx4_pci_table,
2458         .probe          = mlx4_init_one,
2459         .remove         = mlx4_remove_one,
2460         .err_handler    = &mlx4_err_handler,
2461 };
2462
2463 static int __init mlx4_verify_params(void)
2464 {
2465         if ((log_num_mac < 0) || (log_num_mac > 7)) {
2466                 pr_warning("mlx4_core: bad num_mac: %d\n", log_num_mac);
2467                 return -1;
2468         }
2469
2470         if (log_num_vlan != 0)
2471                 pr_warning("mlx4_core: log_num_vlan - obsolete module param, using %d\n",
2472                            MLX4_LOG_NUM_VLANS);
2473
2474         if ((log_mtts_per_seg < 1) || (log_mtts_per_seg > 7)) {
2475                 pr_warning("mlx4_core: bad log_mtts_per_seg: %d\n", log_mtts_per_seg);
2476                 return -1;
2477         }
2478
2479         /* Check if module param for ports type has legal combination */
2480         if (port_type_array[0] == false && port_type_array[1] == true) {
2481                 printk(KERN_WARNING "Module parameter configuration ETH/IB is not supported. Switching to default configuration IB/IB\n");
2482                 port_type_array[0] = true;
2483         }
2484
2485         if (mlx4_log_num_mgm_entry_size != -1 &&
2486             (mlx4_log_num_mgm_entry_size < MLX4_MIN_MGM_LOG_ENTRY_SIZE ||
2487              mlx4_log_num_mgm_entry_size > MLX4_MAX_MGM_LOG_ENTRY_SIZE)) {
2488                 pr_warning("mlx4_core: mlx4_log_num_mgm_entry_size (%d) not "
2489                            "in legal range (-1 or %d..%d)\n",
2490                            mlx4_log_num_mgm_entry_size,
2491                            MLX4_MIN_MGM_LOG_ENTRY_SIZE,
2492                            MLX4_MAX_MGM_LOG_ENTRY_SIZE);
2493                 return -1;
2494         }
2495
2496         return 0;
2497 }
2498
2499 static int __init mlx4_init(void)
2500 {
2501         int ret;
2502
2503         if (mlx4_verify_params())
2504                 return -EINVAL;
2505
2506         mlx4_catas_init();
2507
2508         mlx4_wq = create_singlethread_workqueue("mlx4");
2509         if (!mlx4_wq)
2510                 return -ENOMEM;
2511
2512         ret = pci_register_driver(&mlx4_driver);
2513         return ret < 0 ? ret : 0;
2514 }
2515
2516 static void __exit mlx4_cleanup(void)
2517 {
2518         pci_unregister_driver(&mlx4_driver);
2519         destroy_workqueue(mlx4_wq);
2520 }
2521
2522 module_init(mlx4_init);
2523 module_exit(mlx4_cleanup);