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/kmod.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 uint8_t num_vfs[3] = {0, 0, 0};
  81 static int num_vfs_argc;
  82 module_param_array(num_vfs, byte , &num_vfs_argc, 0444);
  83 MODULE_PARM_DESC(num_vfs, "enable #num_vfs functions if num_vfs > 0\n"
  84                           "num_vfs=port1,port2,port1+2");
  85
  86 static uint8_t probe_vf[3] = {0, 0, 0};
  87 static int probe_vfs_argc;
  88 module_param_array(probe_vf, byte, &probe_vfs_argc, 0444);
  89 MODULE_PARM_DESC(probe_vf, "number of vfs to probe by pf driver (num_vfs > 0)\n"
  90                            "probe_vf=port1,port2,port1+2");
  91
  92 int mlx4_log_num_mgm_entry_size = MLX4_DEFAULT_MGM_LOG_ENTRY_SIZE;
  93 module_param_named(log_num_mgm_entry_size,
  94                         mlx4_log_num_mgm_entry_size, int, 0444);
  95 MODULE_PARM_DESC(log_num_mgm_entry_size, "log mgm size, that defines the num"
  96                                          " of qp per mcg, for example:"
  97                                          " 10 gives 248.range: 7 <="
  98                                          " log_num_mgm_entry_size <= 12."
  99                                          " To activate device managed"
 100                                          " flow steering when available, set to -1");
 101
 102 static bool enable_64b_cqe_eqe = true;
 103 module_param(enable_64b_cqe_eqe, bool, 0444);
 104 MODULE_PARM_DESC(enable_64b_cqe_eqe,
 105                  "Enable 64 byte CQEs/EQEs when the FW supports this (default: True)");
 106
 107 #define PF_CONTEXT_BEHAVIOUR_MASK       (MLX4_FUNC_CAP_64B_EQE_CQE | \
 108                                          MLX4_FUNC_CAP_EQE_CQE_STRIDE | \
 109                                          MLX4_FUNC_CAP_DMFS_A0_STATIC)
 110
 111 #define RESET_PERSIST_MASK_FLAGS        (MLX4_FLAG_SRIOV)
 112
 113 static char mlx4_version[] =
 114         DRV_NAME ": Mellanox ConnectX core driver v"
 115         DRV_VERSION " (" DRV_RELDATE ")\n";
 116
 117 static struct mlx4_profile default_profile = {
 118         .num_qp         = 1 << 18,
 119         .num_srq        = 1 << 16,
 120         .rdmarc_per_qp  = 1 << 4,
 121         .num_cq         = 1 << 16,
 122         .num_mcg        = 1 << 13,
 123         .num_mpt        = 1 << 19,
 124         .num_mtt        = 1 << 20, /* It is really num mtt segements */
 125 };
 126
 127 static struct mlx4_profile low_mem_profile = {
 128         .num_qp         = 1 << 17,
 129         .num_srq        = 1 << 6,
 130         .rdmarc_per_qp  = 1 << 4,
 131         .num_cq         = 1 << 8,
 132         .num_mcg        = 1 << 8,
 133         .num_mpt        = 1 << 9,
 134         .num_mtt        = 1 << 7,
 135 };
 136
 137 static int log_num_mac = 7;
 138 module_param_named(log_num_mac, log_num_mac, int, 0444);
 139 MODULE_PARM_DESC(log_num_mac, "Log2 max number of MACs per ETH port (1-7)");
 140
 141 static int log_num_vlan;
 142 module_param_named(log_num_vlan, log_num_vlan, int, 0444);
 143 MODULE_PARM_DESC(log_num_vlan, "Log2 max number of VLANs per ETH port (0-7)");
 144 /* Log2 max number of VLANs per ETH port (0-7) */
 145 #define MLX4_LOG_NUM_VLANS 7
 146 #define MLX4_MIN_LOG_NUM_VLANS 0
 147 #define MLX4_MIN_LOG_NUM_MAC 1
 148
 149 static bool use_prio;
 150 module_param_named(use_prio, use_prio, bool, 0444);
 151 MODULE_PARM_DESC(use_prio, "Enable steering by VLAN priority on ETH ports (deprecated)");
 152
 153 int log_mtts_per_seg = ilog2(MLX4_MTT_ENTRY_PER_SEG);
 154 module_param_named(log_mtts_per_seg, log_mtts_per_seg, int, 0444);
 155 MODULE_PARM_DESC(log_mtts_per_seg, "Log2 number of MTT entries per segment (1-7)");
 156
 157 static int port_type_array[2] = {MLX4_PORT_TYPE_NONE, MLX4_PORT_TYPE_NONE};
 158 static int arr_argc = 2;
 159 module_param_array(port_type_array, int, &arr_argc, 0444);
 160 MODULE_PARM_DESC(port_type_array, "Array of port types: HW_DEFAULT (0) is default "
 161                                 "1 for IB, 2 for Ethernet");
 162
 163 struct mlx4_port_config {
 164         struct list_head list;
 165         enum mlx4_port_type port_type[MLX4_MAX_PORTS + 1];
 166         struct pci_dev *pdev;
 167 };
 168
 169 static atomic_t pf_loading = ATOMIC_INIT(0);
 170
 171 int mlx4_check_port_params(struct mlx4_dev *dev,
 172                            enum mlx4_port_type *port_type)
 173 {
 174         int i;
 175
 176         if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP)) {
 177                 for (i = 0; i < dev->caps.num_ports - 1; i++) {
 178                         if (port_type[i] != port_type[i + 1]) {
 179                                 mlx4_err(dev, "Only same port types supported on this HCA, aborting\n");
 180                                 return -EINVAL;
 181                         }
 182                 }
 183         }
 184
 185         for (i = 0; i < dev->caps.num_ports; i++) {
 186                 if (!(port_type[i] & dev->caps.supported_type[i+1])) {
 187                         mlx4_err(dev, "Requested port type for port %d is not supported on this HCA\n",
 188                                  i + 1);
 189                         return -EINVAL;
 190                 }
 191         }
 192         return 0;
 193 }
 194
 195 static void mlx4_set_port_mask(struct mlx4_dev *dev)
 196 {
 197         int i;
 198
 199         for (i = 1; i <= dev->caps.num_ports; ++i)
 200                 dev->caps.port_mask[i] = dev->caps.port_type[i];
 201 }
 202
 203 enum {
 204         MLX4_QUERY_FUNC_NUM_SYS_EQS = 1 << 0,
 205 };
 206
 207 static int mlx4_query_func(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
 208 {
 209         int err = 0;
 210         struct mlx4_func func;
 211
 212         if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SYS_EQS) {
 213                 err = mlx4_QUERY_FUNC(dev, &func, 0);
 214                 if (err) {
 215                         mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
 216                         return err;
 217                 }
 218                 dev_cap->max_eqs = func.max_eq;
 219                 dev_cap->reserved_eqs = func.rsvd_eqs;
 220                 dev_cap->reserved_uars = func.rsvd_uars;
 221                 err |= MLX4_QUERY_FUNC_NUM_SYS_EQS;
 222         }
 223         return err;
 224 }
 225
 226 static void mlx4_enable_cqe_eqe_stride(struct mlx4_dev *dev)
 227 {
 228         struct mlx4_caps *dev_cap = &dev->caps;
 229
 230         /* FW not supporting or cancelled by user */
 231         if (!(dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_EQE_STRIDE) ||
 232             !(dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_CQE_STRIDE))
 233                 return;
 234
 235         /* Must have 64B CQE_EQE enabled by FW to use bigger stride
 236          * When FW has NCSI it may decide not to report 64B CQE/EQEs
 237          */
 238         if (!(dev_cap->flags & MLX4_DEV_CAP_FLAG_64B_EQE) ||
 239             !(dev_cap->flags & MLX4_DEV_CAP_FLAG_64B_CQE)) {
 240                 dev_cap->flags2 &= ~MLX4_DEV_CAP_FLAG2_CQE_STRIDE;
 241                 dev_cap->flags2 &= ~MLX4_DEV_CAP_FLAG2_EQE_STRIDE;
 242                 return;
 243         }
 244
 245         if (cache_line_size() == 128 || cache_line_size() == 256) {
 246                 mlx4_dbg(dev, "Enabling CQE stride cacheLine supported\n");
 247                 /* Changing the real data inside CQE size to 32B */
 248                 dev_cap->flags &= ~MLX4_DEV_CAP_FLAG_64B_CQE;
 249                 dev_cap->flags &= ~MLX4_DEV_CAP_FLAG_64B_EQE;
 250
 251                 if (mlx4_is_master(dev))
 252                         dev_cap->function_caps |= MLX4_FUNC_CAP_EQE_CQE_STRIDE;
 253         } else {
 254                 if (cache_line_size() != 32  && cache_line_size() != 64)
 255                         mlx4_dbg(dev, "Disabling CQE stride, cacheLine size unsupported\n");
 256                 dev_cap->flags2 &= ~MLX4_DEV_CAP_FLAG2_CQE_STRIDE;
 257                 dev_cap->flags2 &= ~MLX4_DEV_CAP_FLAG2_EQE_STRIDE;
 258         }
 259 }
 260
 261 static int _mlx4_dev_port(struct mlx4_dev *dev, int port,
 262                           struct mlx4_port_cap *port_cap)
 263 {
 264         dev->caps.vl_cap[port]      = port_cap->max_vl;
 265         dev->caps.ib_mtu_cap[port]          = port_cap->ib_mtu;
 266         dev->phys_caps.gid_phys_table_len[port]  = port_cap->max_gids;
 267         dev->phys_caps.pkey_phys_table_len[port] = port_cap->max_pkeys;
 268         /* set gid and pkey table operating lengths by default
 269          * to non-sriov values
 270          */
 271         dev->caps.gid_table_len[port]  = port_cap->max_gids;
 272         dev->caps.pkey_table_len[port] = port_cap->max_pkeys;
 273         dev->caps.port_width_cap[port] = port_cap->max_port_width;
 274         dev->caps.eth_mtu_cap[port]    = port_cap->eth_mtu;
 275         dev->caps.def_mac[port]        = port_cap->def_mac;
 276         dev->caps.supported_type[port] = port_cap->supported_port_types;
 277         dev->caps.suggested_type[port] = port_cap->suggested_type;
 278         dev->caps.default_sense[port] = port_cap->default_sense;
 279         dev->caps.trans_type[port]          = port_cap->trans_type;
 280         dev->caps.vendor_oui[port]     = port_cap->vendor_oui;
 281         dev->caps.wavelength[port]     = port_cap->wavelength;
 282         dev->caps.trans_code[port]     = port_cap->trans_code;
 283
 284         return 0;
 285 }
 286
 287 static int mlx4_dev_port(struct mlx4_dev *dev, int port,
 288                          struct mlx4_port_cap *port_cap)
 289 {
 290         int err = 0;
 291
 292         err = mlx4_QUERY_PORT(dev, port, port_cap);
 293
 294         if (err)
 295                 mlx4_err(dev, "QUERY_PORT command failed.\n");
 296
 297         return err;
 298 }
 299
 300 static inline void mlx4_enable_ignore_fcs(struct mlx4_dev *dev)
 301 {
 302         if (!(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_IGNORE_FCS))
 303                 return;
 304
 305         if (mlx4_is_mfunc(dev)) {
 306                 mlx4_dbg(dev, "SRIOV mode - Disabling Ignore FCS");
 307                 dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_IGNORE_FCS;
 308                 return;
 309         }
 310
 311         if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_FCS_KEEP)) {
 312                 mlx4_dbg(dev,
 313                          "Keep FCS is not supported - Disabling Ignore FCS");
 314                 dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_IGNORE_FCS;
 315                 return;
 316         }
 317 }
 318
 319 #define MLX4_A0_STEERING_TABLE_SIZE     256
 320 static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
 321 {
 322         int err;
 323         int i;
 324
 325         err = mlx4_QUERY_DEV_CAP(dev, dev_cap);
 326         if (err) {
 327                 mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting\n");
 328                 return err;
 329         }
 330         mlx4_dev_cap_dump(dev, dev_cap);
 331
 332         if (dev_cap->min_page_sz > PAGE_SIZE) {
 333                 mlx4_err(dev, "HCA minimum page size of %d bigger than kernel PAGE_SIZE of %ld, aborting\n",
 334                          dev_cap->min_page_sz, PAGE_SIZE);
 335                 return -ENODEV;
 336         }
 337         if (dev_cap->num_ports > MLX4_MAX_PORTS) {
 338                 mlx4_err(dev, "HCA has %d ports, but we only support %d, aborting\n",
 339                          dev_cap->num_ports, MLX4_MAX_PORTS);
 340                 return -ENODEV;
 341         }
 342
 343         if (dev_cap->uar_size > pci_resource_len(dev->persist->pdev, 2)) {
 344                 mlx4_err(dev, "HCA reported UAR size of 0x%x bigger than PCI resource 2 size of 0x%llx, aborting\n",
 345                          dev_cap->uar_size,
 346                          (unsigned long long)
 347                          pci_resource_len(dev->persist->pdev, 2));
 348                 return -ENODEV;
 349         }
 350
 351         dev->caps.num_ports          = dev_cap->num_ports;
 352         dev->caps.num_sys_eqs = dev_cap->num_sys_eqs;
 353         dev->phys_caps.num_phys_eqs = dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_SYS_EQS ?
 354                                       dev->caps.num_sys_eqs :
 355                                       MLX4_MAX_EQ_NUM;
 356         for (i = 1; i <= dev->caps.num_ports; ++i) {
 357                 err = _mlx4_dev_port(dev, i, dev_cap->port_cap + i);
 358                 if (err) {
 359                         mlx4_err(dev, "QUERY_PORT command failed, aborting\n");
 360                         return err;
 361                 }
 362         }
 363
 364         dev->caps.uar_page_size      = PAGE_SIZE;
 365         dev->caps.num_uars           = dev_cap->uar_size / PAGE_SIZE;
 366         dev->caps.local_ca_ack_delay = dev_cap->local_ca_ack_delay;
 367         dev->caps.bf_reg_size        = dev_cap->bf_reg_size;
 368         dev->caps.bf_regs_per_page   = dev_cap->bf_regs_per_page;
 369         dev->caps.max_sq_sg          = dev_cap->max_sq_sg;
 370         dev->caps.max_rq_sg          = dev_cap->max_rq_sg;
 371         dev->caps.max_wqes           = dev_cap->max_qp_sz;
 372         dev->caps.max_qp_init_rdma   = dev_cap->max_requester_per_qp;
 373         dev->caps.max_srq_wqes       = dev_cap->max_srq_sz;
 374         dev->caps.max_srq_sge        = dev_cap->max_rq_sg - 1;
 375         dev->caps.reserved_srqs      = dev_cap->reserved_srqs;
 376         dev->caps.max_sq_desc_sz     = dev_cap->max_sq_desc_sz;
 377         dev->caps.max_rq_desc_sz     = dev_cap->max_rq_desc_sz;
 378         /*
 379          * Subtract 1 from the limit because we need to allocate a
 380          * spare CQE so the HCA HW can tell the difference between an
 381          * empty CQ and a full CQ.
 382          */
 383         dev->caps.max_cqes           = dev_cap->max_cq_sz - 1;
 384         dev->caps.reserved_cqs       = dev_cap->reserved_cqs;
 385         dev->caps.reserved_eqs       = dev_cap->reserved_eqs;
 386         dev->caps.reserved_mtts      = dev_cap->reserved_mtts;
 387         dev->caps.reserved_mrws      = dev_cap->reserved_mrws;
 388
 389         /* The first 128 UARs are used for EQ doorbells */
 390         dev->caps.reserved_uars      = max_t(int, 128, dev_cap->reserved_uars);
 391         dev->caps.reserved_pds       = dev_cap->reserved_pds;
 392         dev->caps.reserved_xrcds     = (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) ?
 393                                         dev_cap->reserved_xrcds : 0;
 394         dev->caps.max_xrcds          = (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) ?
 395                                         dev_cap->max_xrcds : 0;
 396         dev->caps.mtt_entry_sz       = dev_cap->mtt_entry_sz;
 397
 398         dev->caps.max_msg_sz         = dev_cap->max_msg_sz;
 399         dev->caps.page_size_cap      = ~(u32) (dev_cap->min_page_sz - 1);
 400         dev->caps.flags              = dev_cap->flags;
 401         dev->caps.flags2             = dev_cap->flags2;
 402         dev->caps.bmme_flags         = dev_cap->bmme_flags;
 403         dev->caps.reserved_lkey      = dev_cap->reserved_lkey;
 404         dev->caps.stat_rate_support  = dev_cap->stat_rate_support;
 405         dev->caps.max_gso_sz         = dev_cap->max_gso_sz;
 406         dev->caps.max_rss_tbl_sz     = dev_cap->max_rss_tbl_sz;
 407
 408         if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_PHV_EN) {
 409                 struct mlx4_init_hca_param hca_param;
 410
 411                 memset(&hca_param, 0, sizeof(hca_param));
 412                 err = mlx4_QUERY_HCA(dev, &hca_param);
 413                 /* Turn off PHV_EN flag in case phv_check_en is set.
 414                  * phv_check_en is a HW check that parse the packet and verify
 415                  * phv bit was reported correctly in the wqe. To allow QinQ
 416                  * PHV_EN flag should be set and phv_check_en must be cleared
 417                  * otherwise QinQ packets will be drop by the HW.
 418                  */
 419                 if (err || hca_param.phv_check_en)
 420                         dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_PHV_EN;
 421         }
 422
 423         /* Sense port always allowed on supported devices for ConnectX-1 and -2 */
 424         if (mlx4_priv(dev)->pci_dev_data & MLX4_PCI_DEV_FORCE_SENSE_PORT)
 425                 dev->caps.flags |= MLX4_DEV_CAP_FLAG_SENSE_SUPPORT;
 426         /* Don't do sense port on multifunction devices (for now at least) */
 427         if (mlx4_is_mfunc(dev))
 428                 dev->caps.flags &= ~MLX4_DEV_CAP_FLAG_SENSE_SUPPORT;
 429
 430         if (mlx4_low_memory_profile()) {
 431                 dev->caps.log_num_macs  = MLX4_MIN_LOG_NUM_MAC;
 432                 dev->caps.log_num_vlans = MLX4_MIN_LOG_NUM_VLANS;
 433         } else {
 434                 dev->caps.log_num_macs  = log_num_mac;
 435                 dev->caps.log_num_vlans = MLX4_LOG_NUM_VLANS;
 436         }
 437
 438         for (i = 1; i <= dev->caps.num_ports; ++i) {
 439                 dev->caps.port_type[i] = MLX4_PORT_TYPE_NONE;
 440                 if (dev->caps.supported_type[i]) {
 441                         /* if only ETH is supported - assign ETH */
 442                         if (dev->caps.supported_type[i] == MLX4_PORT_TYPE_ETH)
 443                                 dev->caps.port_type[i] = MLX4_PORT_TYPE_ETH;
 444                         /* if only IB is supported, assign IB */
 445                         else if (dev->caps.supported_type[i] ==
 446                                  MLX4_PORT_TYPE_IB)
 447                                 dev->caps.port_type[i] = MLX4_PORT_TYPE_IB;
 448                         else {
 449                                 /* if IB and ETH are supported, we set the port
 450                                  * type according to user selection of port type;
 451                                  * if user selected none, take the FW hint */
 452                                 if (port_type_array[i - 1] == MLX4_PORT_TYPE_NONE)
 453                                         dev->caps.port_type[i] = dev->caps.suggested_type[i] ?
 454                                                 MLX4_PORT_TYPE_ETH : MLX4_PORT_TYPE_IB;
 455                                 else
 456                                         dev->caps.port_type[i] = port_type_array[i - 1];
 457                         }
 458                 }
 459                 /*
 460                  * Link sensing is allowed on the port if 3 conditions are true:
 461                  * 1. Both protocols are supported on the port.
 462                  * 2. Different types are supported on the port
 463                  * 3. FW declared that it supports link sensing
 464                  */
 465                 mlx4_priv(dev)->sense.sense_allowed[i] =
 466                         ((dev->caps.supported_type[i] == MLX4_PORT_TYPE_AUTO) &&
 467                          (dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP) &&
 468                          (dev->caps.flags & MLX4_DEV_CAP_FLAG_SENSE_SUPPORT));
 469
 470                 /*
 471                  * If "default_sense" bit is set, we move the port to "AUTO" mode
 472                  * and perform sense_port FW command to try and set the correct
 473                  * port type from beginning
 474                  */
 475                 if (mlx4_priv(dev)->sense.sense_allowed[i] && dev->caps.default_sense[i]) {
 476                         enum mlx4_port_type sensed_port = MLX4_PORT_TYPE_NONE;
 477                         dev->caps.possible_type[i] = MLX4_PORT_TYPE_AUTO;
 478                         mlx4_SENSE_PORT(dev, i, &sensed_port);
 479                         if (sensed_port != MLX4_PORT_TYPE_NONE)
 480                                 dev->caps.port_type[i] = sensed_port;
 481                 } else {
 482                         dev->caps.possible_type[i] = dev->caps.port_type[i];
 483                 }
 484
 485                 if (dev->caps.log_num_macs > dev_cap->port_cap[i].log_max_macs) {
 486                         dev->caps.log_num_macs = dev_cap->port_cap[i].log_max_macs;
 487                         mlx4_warn(dev, "Requested number of MACs is too much for port %d, reducing to %d\n",
 488                                   i, 1 << dev->caps.log_num_macs);
 489                 }
 490                 if (dev->caps.log_num_vlans > dev_cap->port_cap[i].log_max_vlans) {
 491                         dev->caps.log_num_vlans = dev_cap->port_cap[i].log_max_vlans;
 492                         mlx4_warn(dev, "Requested number of VLANs is too much for port %d, reducing to %d\n",
 493                                   i, 1 << dev->caps.log_num_vlans);
 494                 }
 495         }
 496
 497         if (mlx4_is_master(dev) && (dev->caps.num_ports == 2) &&
 498             (port_type_array[0] == MLX4_PORT_TYPE_IB) &&
 499             (port_type_array[1] == MLX4_PORT_TYPE_ETH)) {
 500                 mlx4_warn(dev,
 501                           "Granular QoS per VF not supported with IB/Eth configuration\n");
 502                 dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_QOS_VPP;
 503         }
 504
 505         dev->caps.max_counters = dev_cap->max_counters;
 506
 507         dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW] = dev_cap->reserved_qps;
 508         dev->caps.reserved_qps_cnt[MLX4_QP_REGION_ETH_ADDR] =
 509                 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_ADDR] =
 510                 (1 << dev->caps.log_num_macs) *
 511                 (1 << dev->caps.log_num_vlans) *
 512                 dev->caps.num_ports;
 513         dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_EXCH] = MLX4_NUM_FEXCH;
 514
 515         if (dev_cap->dmfs_high_rate_qpn_base > 0 &&
 516             dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FS_EN)
 517                 dev->caps.dmfs_high_rate_qpn_base = dev_cap->dmfs_high_rate_qpn_base;
 518         else
 519                 dev->caps.dmfs_high_rate_qpn_base =
 520                         dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW];
 521
 522         if (dev_cap->dmfs_high_rate_qpn_range > 0 &&
 523             dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FS_EN) {
 524                 dev->caps.dmfs_high_rate_qpn_range = dev_cap->dmfs_high_rate_qpn_range;
 525                 dev->caps.dmfs_high_steer_mode = MLX4_STEERING_DMFS_A0_DEFAULT;
 526                 dev->caps.flags2 |= MLX4_DEV_CAP_FLAG2_FS_A0;
 527         } else {
 528                 dev->caps.dmfs_high_steer_mode = MLX4_STEERING_DMFS_A0_NOT_SUPPORTED;
 529                 dev->caps.dmfs_high_rate_qpn_base =
 530                         dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW];
 531                 dev->caps.dmfs_high_rate_qpn_range = MLX4_A0_STEERING_TABLE_SIZE;
 532         }
 533
 534         dev->caps.rl_caps = dev_cap->rl_caps;
 535
 536         dev->caps.reserved_qps_cnt[MLX4_QP_REGION_RSS_RAW_ETH] =
 537                 dev->caps.dmfs_high_rate_qpn_range;
 538
 539         dev->caps.reserved_qps = dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW] +
 540                 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_ETH_ADDR] +
 541                 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_ADDR] +
 542                 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_EXCH];
 543
 544         dev->caps.sqp_demux = (mlx4_is_master(dev)) ? MLX4_MAX_NUM_SLAVES : 0;
 545
 546         if (!enable_64b_cqe_eqe && !mlx4_is_slave(dev)) {
 547                 if (dev_cap->flags &
 548                     (MLX4_DEV_CAP_FLAG_64B_CQE | MLX4_DEV_CAP_FLAG_64B_EQE)) {
 549                         mlx4_warn(dev, "64B EQEs/CQEs supported by the device but not enabled\n");
 550                         dev->caps.flags &= ~MLX4_DEV_CAP_FLAG_64B_CQE;
 551                         dev->caps.flags &= ~MLX4_DEV_CAP_FLAG_64B_EQE;
 552                 }
 553
 554                 if (dev_cap->flags2 &
 555                     (MLX4_DEV_CAP_FLAG2_CQE_STRIDE |
 556                      MLX4_DEV_CAP_FLAG2_EQE_STRIDE)) {
 557                         mlx4_warn(dev, "Disabling EQE/CQE stride per user request\n");
 558                         dev_cap->flags2 &= ~MLX4_DEV_CAP_FLAG2_CQE_STRIDE;
 559                         dev_cap->flags2 &= ~MLX4_DEV_CAP_FLAG2_EQE_STRIDE;
 560                 }
 561         }
 562
 563         if ((dev->caps.flags &
 564             (MLX4_DEV_CAP_FLAG_64B_CQE | MLX4_DEV_CAP_FLAG_64B_EQE)) &&
 565             mlx4_is_master(dev))
 566                 dev->caps.function_caps |= MLX4_FUNC_CAP_64B_EQE_CQE;
 567
 568         if (!mlx4_is_slave(dev)) {
 569                 mlx4_enable_cqe_eqe_stride(dev);
 570                 dev->caps.alloc_res_qp_mask =
 571                         (dev->caps.bf_reg_size ? MLX4_RESERVE_ETH_BF_QP : 0) |
 572                         MLX4_RESERVE_A0_QP;
 573
 574                 if (!(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETS_CFG) &&
 575                     dev->caps.flags & MLX4_DEV_CAP_FLAG_SET_ETH_SCHED) {
 576                         mlx4_warn(dev, "Old device ETS support detected\n");
 577                         mlx4_warn(dev, "Consider upgrading device FW.\n");
 578                         dev->caps.flags2 |= MLX4_DEV_CAP_FLAG2_ETS_CFG;
 579                 }
 580
 581         } else {
 582                 dev->caps.alloc_res_qp_mask = 0;
 583         }
 584
 585         mlx4_enable_ignore_fcs(dev);
 586
 587         return 0;
 588 }
 589
 590 static int mlx4_get_pcie_dev_link_caps(struct mlx4_dev *dev,
 591                                        enum pci_bus_speed *speed,
 592                                        enum pcie_link_width *width)
 593 {
 594         u32 lnkcap1, lnkcap2;
 595         int err1, err2;
 596
 597 #define  PCIE_MLW_CAP_SHIFT 4   /* start of MLW mask in link capabilities */
 598
 599         *speed = PCI_SPEED_UNKNOWN;
 600         *width = PCIE_LNK_WIDTH_UNKNOWN;
 601
 602         err1 = pcie_capability_read_dword(dev->persist->pdev, PCI_EXP_LNKCAP,
 603                                           &lnkcap1);
 604         err2 = pcie_capability_read_dword(dev->persist->pdev, PCI_EXP_LNKCAP2,
 605                                           &lnkcap2);
 606         if (!err2 && lnkcap2) { /* PCIe r3.0-compliant */
 607                 if (lnkcap2 & PCI_EXP_LNKCAP2_SLS_8_0GB)
 608                         *speed = PCIE_SPEED_8_0GT;
 609                 else if (lnkcap2 & PCI_EXP_LNKCAP2_SLS_5_0GB)
 610                         *speed = PCIE_SPEED_5_0GT;
 611                 else if (lnkcap2 & PCI_EXP_LNKCAP2_SLS_2_5GB)
 612                         *speed = PCIE_SPEED_2_5GT;
 613         }
 614         if (!err1) {
 615                 *width = (lnkcap1 & PCI_EXP_LNKCAP_MLW) >> PCIE_MLW_CAP_SHIFT;
 616                 if (!lnkcap2) { /* pre-r3.0 */
 617                         if (lnkcap1 & PCI_EXP_LNKCAP_SLS_5_0GB)
 618                                 *speed = PCIE_SPEED_5_0GT;
 619                         else if (lnkcap1 & PCI_EXP_LNKCAP_SLS_2_5GB)
 620                                 *speed = PCIE_SPEED_2_5GT;
 621                 }
 622         }
 623
 624         if (*speed == PCI_SPEED_UNKNOWN || *width == PCIE_LNK_WIDTH_UNKNOWN) {
 625                 return err1 ? err1 :
 626                         err2 ? err2 : -EINVAL;
 627         }
 628         return 0;
 629 }
 630
 631 static void mlx4_check_pcie_caps(struct mlx4_dev *dev)
 632 {
 633         enum pcie_link_width width, width_cap;
 634         enum pci_bus_speed speed, speed_cap;
 635         int err;
 636
 637 #define PCIE_SPEED_STR(speed) \
 638         (speed == PCIE_SPEED_8_0GT ? "8.0GT/s" : \
 639          speed == PCIE_SPEED_5_0GT ? "5.0GT/s" : \
 640          speed == PCIE_SPEED_2_5GT ? "2.5GT/s" : \
 641          "Unknown")
 642
 643         err = mlx4_get_pcie_dev_link_caps(dev, &speed_cap, &width_cap);
 644         if (err) {
 645                 mlx4_warn(dev,
 646                           "Unable to determine PCIe device BW capabilities\n");
 647                 return;
 648         }
 649
 650         err = pcie_get_minimum_link(dev->persist->pdev, &speed, &width);
 651         if (err || speed == PCI_SPEED_UNKNOWN ||
 652             width == PCIE_LNK_WIDTH_UNKNOWN) {
 653                 mlx4_warn(dev,
 654                           "Unable to determine PCI device chain minimum BW\n");
 655                 return;
 656         }
 657
 658         if (width != width_cap || speed != speed_cap)
 659                 mlx4_warn(dev,
 660                           "PCIe BW is different than device's capability\n");
 661
 662         mlx4_info(dev, "PCIe link speed is %s, device supports %s\n",
 663                   PCIE_SPEED_STR(speed), PCIE_SPEED_STR(speed_cap));
 664         mlx4_info(dev, "PCIe link width is x%d, device supports x%d\n",
 665                   width, width_cap);
 666         return;
 667 }
 668
 669 /*The function checks if there are live vf, return the num of them*/
 670 static int mlx4_how_many_lives_vf(struct mlx4_dev *dev)
 671 {
 672         struct mlx4_priv *priv = mlx4_priv(dev);
 673         struct mlx4_slave_state *s_state;
 674         int i;
 675         int ret = 0;
 676
 677         for (i = 1/*the ppf is 0*/; i < dev->num_slaves; ++i) {
 678                 s_state = &priv->mfunc.master.slave_state[i];
 679                 if (s_state->active && s_state->last_cmd !=
 680                     MLX4_COMM_CMD_RESET) {
 681                         mlx4_warn(dev, "%s: slave: %d is still active\n",
 682                                   __func__, i);
 683                         ret++;
 684                 }
 685         }
 686         return ret;
 687 }
 688
 689 int mlx4_get_parav_qkey(struct mlx4_dev *dev, u32 qpn, u32 *qkey)
 690 {
 691         u32 qk = MLX4_RESERVED_QKEY_BASE;
 692
 693         if (qpn >= dev->phys_caps.base_tunnel_sqpn + 8 * MLX4_MFUNC_MAX ||
 694             qpn < dev->phys_caps.base_proxy_sqpn)
 695                 return -EINVAL;
 696
 697         if (qpn >= dev->phys_caps.base_tunnel_sqpn)
 698                 /* tunnel qp */
 699                 qk += qpn - dev->phys_caps.base_tunnel_sqpn;
 700         else
 701                 qk += qpn - dev->phys_caps.base_proxy_sqpn;
 702         *qkey = qk;
 703         return 0;
 704 }
 705 EXPORT_SYMBOL(mlx4_get_parav_qkey);
 706
 707 void mlx4_sync_pkey_table(struct mlx4_dev *dev, int slave, int port, int i, int val)
 708 {
 709         struct mlx4_priv *priv = container_of(dev, struct mlx4_priv, dev);
 710
 711         if (!mlx4_is_master(dev))
 712                 return;
 713
 714         priv->virt2phys_pkey[slave][port - 1][i] = val;
 715 }
 716 EXPORT_SYMBOL(mlx4_sync_pkey_table);
 717
 718 void mlx4_put_slave_node_guid(struct mlx4_dev *dev, int slave, __be64 guid)
 719 {
 720         struct mlx4_priv *priv = container_of(dev, struct mlx4_priv, dev);
 721
 722         if (!mlx4_is_master(dev))
 723                 return;
 724
 725         priv->slave_node_guids[slave] = guid;
 726 }
 727 EXPORT_SYMBOL(mlx4_put_slave_node_guid);
 728
 729 __be64 mlx4_get_slave_node_guid(struct mlx4_dev *dev, int slave)
 730 {
 731         struct mlx4_priv *priv = container_of(dev, struct mlx4_priv, dev);
 732
 733         if (!mlx4_is_master(dev))
 734                 return 0;
 735
 736         return priv->slave_node_guids[slave];
 737 }
 738 EXPORT_SYMBOL(mlx4_get_slave_node_guid);
 739
 740 int mlx4_is_slave_active(struct mlx4_dev *dev, int slave)
 741 {
 742         struct mlx4_priv *priv = mlx4_priv(dev);
 743         struct mlx4_slave_state *s_slave;
 744
 745         if (!mlx4_is_master(dev))
 746                 return 0;
 747
 748         s_slave = &priv->mfunc.master.slave_state[slave];
 749         return !!s_slave->active;
 750 }
 751 EXPORT_SYMBOL(mlx4_is_slave_active);
 752
 753 static void slave_adjust_steering_mode(struct mlx4_dev *dev,
 754                                        struct mlx4_dev_cap *dev_cap,
 755                                        struct mlx4_init_hca_param *hca_param)
 756 {
 757         dev->caps.steering_mode = hca_param->steering_mode;
 758         if (dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED) {
 759                 dev->caps.num_qp_per_mgm = dev_cap->fs_max_num_qp_per_entry;
 760                 dev->caps.fs_log_max_ucast_qp_range_size =
 761                         dev_cap->fs_log_max_ucast_qp_range_size;
 762         } else
 763                 dev->caps.num_qp_per_mgm =
 764                         4 * ((1 << hca_param->log_mc_entry_sz)/16 - 2);
 765
 766         mlx4_dbg(dev, "Steering mode is: %s\n",
 767                  mlx4_steering_mode_str(dev->caps.steering_mode));
 768 }
 769
 770 static int mlx4_slave_cap(struct mlx4_dev *dev)
 771 {
 772         int                        err;
 773         u32                        page_size;
 774         struct mlx4_dev_cap        dev_cap;
 775         struct mlx4_func_cap       func_cap;
 776         struct mlx4_init_hca_param hca_param;
 777         u8                         i;
 778
 779         memset(&hca_param, 0, sizeof(hca_param));
 780         err = mlx4_QUERY_HCA(dev, &hca_param);
 781         if (err) {
 782                 mlx4_err(dev, "QUERY_HCA command failed, aborting\n");
 783                 return err;
 784         }
 785
 786         /* fail if the hca has an unknown global capability
 787          * at this time global_caps should be always zeroed
 788          */
 789         if (hca_param.global_caps) {
 790                 mlx4_err(dev, "Unknown hca global capabilities\n");
 791                 return -ENOSYS;
 792         }
 793
 794         mlx4_log_num_mgm_entry_size = hca_param.log_mc_entry_sz;
 795
 796         dev->caps.hca_core_clock = hca_param.hca_core_clock;
 797
 798         memset(&dev_cap, 0, sizeof(dev_cap));
 799         dev->caps.max_qp_dest_rdma = 1 << hca_param.log_rd_per_qp;
 800         err = mlx4_dev_cap(dev, &dev_cap);
 801         if (err) {
 802                 mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting\n");
 803                 return err;
 804         }
 805
 806         err = mlx4_QUERY_FW(dev);
 807         if (err)
 808                 mlx4_err(dev, "QUERY_FW command failed: could not get FW version\n");
 809
 810         page_size = ~dev->caps.page_size_cap + 1;
 811         mlx4_warn(dev, "HCA minimum page size:%d\n", page_size);
 812         if (page_size > PAGE_SIZE) {
 813                 mlx4_err(dev, "HCA minimum page size of %d bigger than kernel PAGE_SIZE of %ld, aborting\n",
 814                          page_size, PAGE_SIZE);
 815                 return -ENODEV;
 816         }
 817
 818         /* slave gets uar page size from QUERY_HCA fw command */
 819         dev->caps.uar_page_size = 1 << (hca_param.uar_page_sz + 12);
 820
 821         /* TODO: relax this assumption */
 822         if (dev->caps.uar_page_size != PAGE_SIZE) {
 823                 mlx4_err(dev, "UAR size:%d != kernel PAGE_SIZE of %ld\n",
 824                          dev->caps.uar_page_size, PAGE_SIZE);
 825                 return -ENODEV;
 826         }
 827
 828         memset(&func_cap, 0, sizeof(func_cap));
 829         err = mlx4_QUERY_FUNC_CAP(dev, 0, &func_cap);
 830         if (err) {
 831                 mlx4_err(dev, "QUERY_FUNC_CAP general command failed, aborting (%d)\n",
 832                          err);
 833                 return err;
 834         }
 835
 836         if ((func_cap.pf_context_behaviour | PF_CONTEXT_BEHAVIOUR_MASK) !=
 837             PF_CONTEXT_BEHAVIOUR_MASK) {
 838                 mlx4_err(dev, "Unknown pf context behaviour %x known flags %x\n",
 839                          func_cap.pf_context_behaviour, PF_CONTEXT_BEHAVIOUR_MASK);
 840                 return -ENOSYS;
 841         }
 842
 843         dev->caps.num_ports             = func_cap.num_ports;
 844         dev->quotas.qp                  = func_cap.qp_quota;
 845         dev->quotas.srq                 = func_cap.srq_quota;
 846         dev->quotas.cq                  = func_cap.cq_quota;
 847         dev->quotas.mpt                 = func_cap.mpt_quota;
 848         dev->quotas.mtt                 = func_cap.mtt_quota;
 849         dev->caps.num_qps               = 1 << hca_param.log_num_qps;
 850         dev->caps.num_srqs              = 1 << hca_param.log_num_srqs;
 851         dev->caps.num_cqs               = 1 << hca_param.log_num_cqs;
 852         dev->caps.num_mpts              = 1 << hca_param.log_mpt_sz;
 853         dev->caps.num_eqs               = func_cap.max_eq;
 854         dev->caps.reserved_eqs          = func_cap.reserved_eq;
 855         dev->caps.reserved_lkey         = func_cap.reserved_lkey;
 856         dev->caps.num_pds               = MLX4_NUM_PDS;
 857         dev->caps.num_mgms              = 0;
 858         dev->caps.num_amgms             = 0;
 859
 860         if (dev->caps.num_ports > MLX4_MAX_PORTS) {
 861                 mlx4_err(dev, "HCA has %d ports, but we only support %d, aborting\n",
 862                          dev->caps.num_ports, MLX4_MAX_PORTS);
 863                 return -ENODEV;
 864         }
 865
 866         mlx4_replace_zero_macs(dev);
 867
 868         dev->caps.qp0_qkey = kcalloc(dev->caps.num_ports, sizeof(u32), GFP_KERNEL);
 869         dev->caps.qp0_tunnel = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL);
 870         dev->caps.qp0_proxy = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL);
 871         dev->caps.qp1_tunnel = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL);
 872         dev->caps.qp1_proxy = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL);
 873
 874         if (!dev->caps.qp0_tunnel || !dev->caps.qp0_proxy ||
 875             !dev->caps.qp1_tunnel || !dev->caps.qp1_proxy ||
 876             !dev->caps.qp0_qkey) {
 877                 err = -ENOMEM;
 878                 goto err_mem;
 879         }
 880
 881         for (i = 1; i <= dev->caps.num_ports; ++i) {
 882                 err = mlx4_QUERY_FUNC_CAP(dev, i, &func_cap);
 883                 if (err) {
 884                         mlx4_err(dev, "QUERY_FUNC_CAP port command failed for port %d, aborting (%d)\n",
 885                                  i, err);
 886                         goto err_mem;
 887                 }
 888                 dev->caps.qp0_qkey[i - 1] = func_cap.qp0_qkey;
 889                 dev->caps.qp0_tunnel[i - 1] = func_cap.qp0_tunnel_qpn;
 890                 dev->caps.qp0_proxy[i - 1] = func_cap.qp0_proxy_qpn;
 891                 dev->caps.qp1_tunnel[i - 1] = func_cap.qp1_tunnel_qpn;
 892                 dev->caps.qp1_proxy[i - 1] = func_cap.qp1_proxy_qpn;
 893                 dev->caps.port_mask[i] = dev->caps.port_type[i];
 894                 dev->caps.phys_port_id[i] = func_cap.phys_port_id;
 895                 if (mlx4_get_slave_pkey_gid_tbl_len(dev, i,
 896                                                     &dev->caps.gid_table_len[i],
 897                                                     &dev->caps.pkey_table_len[i]))
 898                         goto err_mem;
 899         }
 900
 901         if (dev->caps.uar_page_size * (dev->caps.num_uars -
 902                                        dev->caps.reserved_uars) >
 903                                        pci_resource_len(dev->persist->pdev,
 904                                                         2)) {
 905                 mlx4_err(dev, "HCA reported UAR region size of 0x%x bigger than PCI resource 2 size of 0x%llx, aborting\n",
 906                          dev->caps.uar_page_size * dev->caps.num_uars,
 907                          (unsigned long long)
 908                          pci_resource_len(dev->persist->pdev, 2));
 909                 goto err_mem;
 910         }
 911
 912         if (hca_param.dev_cap_enabled & MLX4_DEV_CAP_64B_EQE_ENABLED) {
 913                 dev->caps.eqe_size   = 64;
 914                 dev->caps.eqe_factor = 1;
 915         } else {
 916                 dev->caps.eqe_size   = 32;
 917                 dev->caps.eqe_factor = 0;
 918         }
 919
 920         if (hca_param.dev_cap_enabled & MLX4_DEV_CAP_64B_CQE_ENABLED) {
 921                 dev->caps.cqe_size   = 64;
 922                 dev->caps.userspace_caps |= MLX4_USER_DEV_CAP_LARGE_CQE;
 923         } else {
 924                 dev->caps.cqe_size   = 32;
 925         }
 926
 927         if (hca_param.dev_cap_enabled & MLX4_DEV_CAP_EQE_STRIDE_ENABLED) {
 928                 dev->caps.eqe_size = hca_param.eqe_size;
 929                 dev->caps.eqe_factor = 0;
 930         }
 931
 932         if (hca_param.dev_cap_enabled & MLX4_DEV_CAP_CQE_STRIDE_ENABLED) {
 933                 dev->caps.cqe_size = hca_param.cqe_size;
 934                 /* User still need to know when CQE > 32B */
 935                 dev->caps.userspace_caps |= MLX4_USER_DEV_CAP_LARGE_CQE;
 936         }
 937
 938         dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_TS;
 939         mlx4_warn(dev, "Timestamping is not supported in slave mode\n");
 940
 941         slave_adjust_steering_mode(dev, &dev_cap, &hca_param);
 942         mlx4_dbg(dev, "RSS support for IP fragments is %s\n",
 943                  hca_param.rss_ip_frags ? "on" : "off");
 944
 945         if (func_cap.extra_flags & MLX4_QUERY_FUNC_FLAGS_BF_RES_QP &&
 946             dev->caps.bf_reg_size)
 947                 dev->caps.alloc_res_qp_mask |= MLX4_RESERVE_ETH_BF_QP;
 948
 949         if (func_cap.extra_flags & MLX4_QUERY_FUNC_FLAGS_A0_RES_QP)
 950                 dev->caps.alloc_res_qp_mask |= MLX4_RESERVE_A0_QP;
 951
 952         return 0;
 953
 954 err_mem:
 955         kfree(dev->caps.qp0_qkey);
 956         kfree(dev->caps.qp0_tunnel);
 957         kfree(dev->caps.qp0_proxy);
 958         kfree(dev->caps.qp1_tunnel);
 959         kfree(dev->caps.qp1_proxy);
 960         dev->caps.qp0_qkey = NULL;
 961         dev->caps.qp0_tunnel = NULL;
 962         dev->caps.qp0_proxy = NULL;
 963         dev->caps.qp1_tunnel = NULL;
 964         dev->caps.qp1_proxy = NULL;
 965
 966         return err;
 967 }
 968
 969 static void mlx4_request_modules(struct mlx4_dev *dev)
 970 {
 971         int port;
 972         int has_ib_port = false;
 973         int has_eth_port = false;
 974 #define EN_DRV_NAME     "mlx4_en"
 975 #define IB_DRV_NAME     "mlx4_ib"
 976
 977         for (port = 1; port <= dev->caps.num_ports; port++) {
 978                 if (dev->caps.port_type[port] == MLX4_PORT_TYPE_IB)
 979                         has_ib_port = true;
 980                 else if (dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH)
 981                         has_eth_port = true;
 982         }
 983
 984         if (has_eth_port)
 985                 request_module_nowait(EN_DRV_NAME);
 986         if (has_ib_port || (dev->caps.flags & MLX4_DEV_CAP_FLAG_IBOE))
 987                 request_module_nowait(IB_DRV_NAME);
 988 }
 989
 990 /*
 991  * Change the port configuration of the device.
 992  * Every user of this function must hold the port mutex.
 993  */
 994 int mlx4_change_port_types(struct mlx4_dev *dev,
 995                            enum mlx4_port_type *port_types)
 996 {
 997         int err = 0;
 998         int change = 0;
 999         int port;
1000
1001         for (port = 0; port <  dev->caps.num_ports; port++) {
1002                 /* Change the port type only if the new type is different
1003                  * from the current, and not set to Auto */
1004                 if (port_types[port] != dev->caps.port_type[port + 1])
1005                         change = 1;
1006         }
1007         if (change) {
1008                 mlx4_unregister_device(dev);
1009                 for (port = 1; port <= dev->caps.num_ports; port++) {
1010                         mlx4_CLOSE_PORT(dev, port);
1011                         dev->caps.port_type[port] = port_types[port - 1];
1012                         err = mlx4_SET_PORT(dev, port, -1);
1013                         if (err) {
1014                                 mlx4_err(dev, "Failed to set port %d, aborting\n",
1015                                          port);
1016                                 goto out;
1017                         }
1018                 }
1019                 mlx4_set_port_mask(dev);
1020                 err = mlx4_register_device(dev);
1021                 if (err) {
1022                         mlx4_err(dev, "Failed to register device\n");
1023                         goto out;
1024                 }
1025                 mlx4_request_modules(dev);
1026         }
1027
1028 out:
1029         return err;
1030 }
1031
1032 static ssize_t show_port_type(struct device *dev,
1033                               struct device_attribute *attr,
1034                               char *buf)
1035 {
1036         struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
1037                                                    port_attr);
1038         struct mlx4_dev *mdev = info->dev;
1039         char type[8];
1040
1041         sprintf(type, "%s",
1042                 (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_IB) ?
1043                 "ib" : "eth");
1044         if (mdev->caps.possible_type[info->port] == MLX4_PORT_TYPE_AUTO)
1045                 sprintf(buf, "auto (%s)\n", type);
1046         else
1047                 sprintf(buf, "%s\n", type);
1048
1049         return strlen(buf);
1050 }
1051
1052 static ssize_t set_port_type(struct device *dev,
1053                              struct device_attribute *attr,
1054                              const char *buf, size_t count)
1055 {
1056         struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
1057                                                    port_attr);
1058         struct mlx4_dev *mdev = info->dev;
1059         struct mlx4_priv *priv = mlx4_priv(mdev);
1060         enum mlx4_port_type types[MLX4_MAX_PORTS];
1061         enum mlx4_port_type new_types[MLX4_MAX_PORTS];
1062         static DEFINE_MUTEX(set_port_type_mutex);
1063         int i;
1064         int err = 0;
1065
1066         mutex_lock(&set_port_type_mutex);
1067
1068         if (!strcmp(buf, "ib\n"))
1069                 info->tmp_type = MLX4_PORT_TYPE_IB;
1070         else if (!strcmp(buf, "eth\n"))
1071                 info->tmp_type = MLX4_PORT_TYPE_ETH;
1072         else if (!strcmp(buf, "auto\n"))
1073                 info->tmp_type = MLX4_PORT_TYPE_AUTO;
1074         else {
1075                 mlx4_err(mdev, "%s is not supported port type\n", buf);
1076                 err = -EINVAL;
1077                 goto err_out;
1078         }
1079
1080         mlx4_stop_sense(mdev);
1081         mutex_lock(&priv->port_mutex);
1082         /* Possible type is always the one that was delivered */
1083         mdev->caps.possible_type[info->port] = info->tmp_type;
1084
1085         for (i = 0; i < mdev->caps.num_ports; i++) {
1086                 types[i] = priv->port[i+1].tmp_type ? priv->port[i+1].tmp_type :
1087                                         mdev->caps.possible_type[i+1];
1088                 if (types[i] == MLX4_PORT_TYPE_AUTO)
1089                         types[i] = mdev->caps.port_type[i+1];
1090         }
1091
1092         if (!(mdev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP) &&
1093             !(mdev->caps.flags & MLX4_DEV_CAP_FLAG_SENSE_SUPPORT)) {
1094                 for (i = 1; i <= mdev->caps.num_ports; i++) {
1095                         if (mdev->caps.possible_type[i] == MLX4_PORT_TYPE_AUTO) {
1096                                 mdev->caps.possible_type[i] = mdev->caps.port_type[i];
1097                                 err = -EINVAL;
1098                         }
1099                 }
1100         }
1101         if (err) {
1102                 mlx4_err(mdev, "Auto sensing is not supported on this HCA. Set only 'eth' or 'ib' for both ports (should be the same)\n");
1103                 goto out;
1104         }
1105
1106         mlx4_do_sense_ports(mdev, new_types, types);
1107
1108         err = mlx4_check_port_params(mdev, new_types);
1109         if (err)
1110                 goto out;
1111
1112         /* We are about to apply the changes after the configuration
1113          * was verified, no need to remember the temporary types
1114          * any more */
1115         for (i = 0; i < mdev->caps.num_ports; i++)
1116                 priv->port[i + 1].tmp_type = 0;
1117
1118         err = mlx4_change_port_types(mdev, new_types);
1119
1120 out:
1121         mlx4_start_sense(mdev);
1122         mutex_unlock(&priv->port_mutex);
1123 err_out:
1124         mutex_unlock(&set_port_type_mutex);
1125
1126         return err ? err : count;
1127 }
1128
1129 enum ibta_mtu {
1130         IB_MTU_256  = 1,
1131         IB_MTU_512  = 2,
1132         IB_MTU_1024 = 3,
1133         IB_MTU_2048 = 4,
1134         IB_MTU_4096 = 5
1135 };
1136
1137 static inline int int_to_ibta_mtu(int mtu)
1138 {
1139         switch (mtu) {
1140         case 256:  return IB_MTU_256;
1141         case 512:  return IB_MTU_512;
1142         case 1024: return IB_MTU_1024;
1143         case 2048: return IB_MTU_2048;
1144         case 4096: return IB_MTU_4096;
1145         default: return -1;
1146         }
1147 }
1148
1149 static inline int ibta_mtu_to_int(enum ibta_mtu mtu)
1150 {
1151         switch (mtu) {
1152         case IB_MTU_256:  return  256;
1153         case IB_MTU_512:  return  512;
1154         case IB_MTU_1024: return 1024;
1155         case IB_MTU_2048: return 2048;
1156         case IB_MTU_4096: return 4096;
1157         default: return -1;
1158         }
1159 }
1160
1161 static ssize_t show_port_ib_mtu(struct device *dev,
1162                              struct device_attribute *attr,
1163                              char *buf)
1164 {
1165         struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
1166                                                    port_mtu_attr);
1167         struct mlx4_dev *mdev = info->dev;
1168
1169         if (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_ETH)
1170                 mlx4_warn(mdev, "port level mtu is only used for IB ports\n");
1171
1172         sprintf(buf, "%d\n",
1173                         ibta_mtu_to_int(mdev->caps.port_ib_mtu[info->port]));
1174         return strlen(buf);
1175 }
1176
1177 static ssize_t set_port_ib_mtu(struct device *dev,
1178                              struct device_attribute *attr,
1179                              const char *buf, size_t count)
1180 {
1181         struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
1182                                                    port_mtu_attr);
1183         struct mlx4_dev *mdev = info->dev;
1184         struct mlx4_priv *priv = mlx4_priv(mdev);
1185         int err, port, mtu, ibta_mtu = -1;
1186
1187         if (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_ETH) {
1188                 mlx4_warn(mdev, "port level mtu is only used for IB ports\n");
1189                 return -EINVAL;
1190         }
1191
1192         err = kstrtoint(buf, 0, &mtu);
1193         if (!err)
1194                 ibta_mtu = int_to_ibta_mtu(mtu);
1195
1196         if (err || ibta_mtu < 0) {
1197                 mlx4_err(mdev, "%s is invalid IBTA mtu\n", buf);
1198                 return -EINVAL;
1199         }
1200
1201         mdev->caps.port_ib_mtu[info->port] = ibta_mtu;
1202
1203         mlx4_stop_sense(mdev);
1204         mutex_lock(&priv->port_mutex);
1205         mlx4_unregister_device(mdev);
1206         for (port = 1; port <= mdev->caps.num_ports; port++) {
1207                 mlx4_CLOSE_PORT(mdev, port);
1208                 err = mlx4_SET_PORT(mdev, port, -1);
1209                 if (err) {
1210                         mlx4_err(mdev, "Failed to set port %d, aborting\n",
1211                                  port);
1212                         goto err_set_port;
1213                 }
1214         }
1215         err = mlx4_register_device(mdev);
1216 err_set_port:
1217         mutex_unlock(&priv->port_mutex);
1218         mlx4_start_sense(mdev);
1219         return err ? err : count;
1220 }
1221
1222 int mlx4_bond(struct mlx4_dev *dev)
1223 {
1224         int ret = 0;
1225         struct mlx4_priv *priv = mlx4_priv(dev);
1226
1227         mutex_lock(&priv->bond_mutex);
1228
1229         if (!mlx4_is_bonded(dev))
1230                 ret = mlx4_do_bond(dev, true);
1231         else
1232                 ret = 0;
1233
1234         mutex_unlock(&priv->bond_mutex);
1235         if (ret)
1236                 mlx4_err(dev, "Failed to bond device: %d\n", ret);
1237         else
1238                 mlx4_dbg(dev, "Device is bonded\n");
1239         return ret;
1240 }
1241 EXPORT_SYMBOL_GPL(mlx4_bond);
1242
1243 int mlx4_unbond(struct mlx4_dev *dev)
1244 {
1245         int ret = 0;
1246         struct mlx4_priv *priv = mlx4_priv(dev);
1247
1248         mutex_lock(&priv->bond_mutex);
1249
1250         if (mlx4_is_bonded(dev))
1251                 ret = mlx4_do_bond(dev, false);
1252
1253         mutex_unlock(&priv->bond_mutex);
1254         if (ret)
1255                 mlx4_err(dev, "Failed to unbond device: %d\n", ret);
1256         else
1257                 mlx4_dbg(dev, "Device is unbonded\n");
1258         return ret;
1259 }
1260 EXPORT_SYMBOL_GPL(mlx4_unbond);
1261
1262
1263 int mlx4_port_map_set(struct mlx4_dev *dev, struct mlx4_port_map *v2p)
1264 {
1265         u8 port1 = v2p->port1;
1266         u8 port2 = v2p->port2;
1267         struct mlx4_priv *priv = mlx4_priv(dev);
1268         int err;
1269
1270         if (!(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_PORT_REMAP))
1271                 return -ENOTSUPP;
1272
1273         mutex_lock(&priv->bond_mutex);
1274
1275         /* zero means keep current mapping for this port */
1276         if (port1 == 0)
1277                 port1 = priv->v2p.port1;
1278         if (port2 == 0)
1279                 port2 = priv->v2p.port2;
1280
1281         if ((port1 < 1) || (port1 > MLX4_MAX_PORTS) ||
1282             (port2 < 1) || (port2 > MLX4_MAX_PORTS) ||
1283             (port1 == 2 && port2 == 1)) {
1284                 /* besides boundary checks cross mapping makes
1285                  * no sense and therefore not allowed */
1286                 err = -EINVAL;
1287         } else if ((port1 == priv->v2p.port1) &&
1288                  (port2 == priv->v2p.port2)) {
1289                 err = 0;
1290         } else {
1291                 err = mlx4_virt2phy_port_map(dev, port1, port2);
1292                 if (!err) {
1293                         mlx4_dbg(dev, "port map changed: [%d][%d]\n",
1294                                  port1, port2);
1295                         priv->v2p.port1 = port1;
1296                         priv->v2p.port2 = port2;
1297                 } else {
1298                         mlx4_err(dev, "Failed to change port mape: %d\n", err);
1299                 }
1300         }
1301
1302         mutex_unlock(&priv->bond_mutex);
1303         return err;
1304 }
1305 EXPORT_SYMBOL_GPL(mlx4_port_map_set);
1306
1307 static int mlx4_load_fw(struct mlx4_dev *dev)
1308 {
1309         struct mlx4_priv *priv = mlx4_priv(dev);
1310         int err;
1311
1312         priv->fw.fw_icm = mlx4_alloc_icm(dev, priv->fw.fw_pages,
1313                                          GFP_HIGHUSER | __GFP_NOWARN, 0);
1314         if (!priv->fw.fw_icm) {
1315                 mlx4_err(dev, "Couldn't allocate FW area, aborting\n");
1316                 return -ENOMEM;
1317         }
1318
1319         err = mlx4_MAP_FA(dev, priv->fw.fw_icm);
1320         if (err) {
1321                 mlx4_err(dev, "MAP_FA command failed, aborting\n");
1322                 goto err_free;
1323         }
1324
1325         err = mlx4_RUN_FW(dev);
1326         if (err) {
1327                 mlx4_err(dev, "RUN_FW command failed, aborting\n");
1328                 goto err_unmap_fa;
1329         }
1330
1331         return 0;
1332
1333 err_unmap_fa:
1334         mlx4_UNMAP_FA(dev);
1335
1336 err_free:
1337         mlx4_free_icm(dev, priv->fw.fw_icm, 0);
1338         return err;
1339 }
1340
1341 static int mlx4_init_cmpt_table(struct mlx4_dev *dev, u64 cmpt_base,
1342                                 int cmpt_entry_sz)
1343 {
1344         struct mlx4_priv *priv = mlx4_priv(dev);
1345         int err;
1346         int num_eqs;
1347
1348         err = mlx4_init_icm_table(dev, &priv->qp_table.cmpt_table,
1349                                   cmpt_base +
1350                                   ((u64) (MLX4_CMPT_TYPE_QP *
1351                                           cmpt_entry_sz) << MLX4_CMPT_SHIFT),
1352                                   cmpt_entry_sz, dev->caps.num_qps,
1353                                   dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
1354                                   0, 0);
1355         if (err)
1356                 goto err;
1357
1358         err = mlx4_init_icm_table(dev, &priv->srq_table.cmpt_table,
1359                                   cmpt_base +
1360                                   ((u64) (MLX4_CMPT_TYPE_SRQ *
1361                                           cmpt_entry_sz) << MLX4_CMPT_SHIFT),
1362                                   cmpt_entry_sz, dev->caps.num_srqs,
1363                                   dev->caps.reserved_srqs, 0, 0);
1364         if (err)
1365                 goto err_qp;
1366
1367         err = mlx4_init_icm_table(dev, &priv->cq_table.cmpt_table,
1368                                   cmpt_base +
1369                                   ((u64) (MLX4_CMPT_TYPE_CQ *
1370                                           cmpt_entry_sz) << MLX4_CMPT_SHIFT),
1371                                   cmpt_entry_sz, dev->caps.num_cqs,
1372                                   dev->caps.reserved_cqs, 0, 0);
1373         if (err)
1374                 goto err_srq;
1375
1376         num_eqs = dev->phys_caps.num_phys_eqs;
1377         err = mlx4_init_icm_table(dev, &priv->eq_table.cmpt_table,
1378                                   cmpt_base +
1379                                   ((u64) (MLX4_CMPT_TYPE_EQ *
1380                                           cmpt_entry_sz) << MLX4_CMPT_SHIFT),
1381                                   cmpt_entry_sz, num_eqs, num_eqs, 0, 0);
1382         if (err)
1383                 goto err_cq;
1384
1385         return 0;
1386
1387 err_cq:
1388         mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
1389
1390 err_srq:
1391         mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
1392
1393 err_qp:
1394         mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
1395
1396 err:
1397         return err;
1398 }
1399
1400 static int mlx4_init_icm(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap,
1401                          struct mlx4_init_hca_param *init_hca, u64 icm_size)
1402 {
1403         struct mlx4_priv *priv = mlx4_priv(dev);
1404         u64 aux_pages;
1405         int num_eqs;
1406         int err;
1407
1408         err = mlx4_SET_ICM_SIZE(dev, icm_size, &aux_pages);
1409         if (err) {
1410                 mlx4_err(dev, "SET_ICM_SIZE command failed, aborting\n");
1411                 return err;
1412         }
1413
1414         mlx4_dbg(dev, "%lld KB of HCA context requires %lld KB aux memory\n",
1415                  (unsigned long long) icm_size >> 10,
1416                  (unsigned long long) aux_pages << 2);
1417
1418         priv->fw.aux_icm = mlx4_alloc_icm(dev, aux_pages,
1419                                           GFP_HIGHUSER | __GFP_NOWARN, 0);
1420         if (!priv->fw.aux_icm) {
1421                 mlx4_err(dev, "Couldn't allocate aux memory, aborting\n");
1422                 return -ENOMEM;
1423         }
1424
1425         err = mlx4_MAP_ICM_AUX(dev, priv->fw.aux_icm);
1426         if (err) {
1427                 mlx4_err(dev, "MAP_ICM_AUX command failed, aborting\n");
1428                 goto err_free_aux;
1429         }
1430
1431         err = mlx4_init_cmpt_table(dev, init_hca->cmpt_base, dev_cap->cmpt_entry_sz);
1432         if (err) {
1433                 mlx4_err(dev, "Failed to map cMPT context memory, aborting\n");
1434                 goto err_unmap_aux;
1435         }
1436
1437
1438         num_eqs = dev->phys_caps.num_phys_eqs;
1439         err = mlx4_init_icm_table(dev, &priv->eq_table.table,
1440                                   init_hca->eqc_base, dev_cap->eqc_entry_sz,
1441                                   num_eqs, num_eqs, 0, 0);
1442         if (err) {
1443                 mlx4_err(dev, "Failed to map EQ context memory, aborting\n");
1444                 goto err_unmap_cmpt;
1445         }
1446
1447         /*
1448          * Reserved MTT entries must be aligned up to a cacheline
1449          * boundary, since the FW will write to them, while the driver
1450          * writes to all other MTT entries. (The variable
1451          * dev->caps.mtt_entry_sz below is really the MTT segment
1452          * size, not the raw entry size)
1453          */
1454         dev->caps.reserved_mtts =
1455                 ALIGN(dev->caps.reserved_mtts * dev->caps.mtt_entry_sz,
1456                       dma_get_cache_alignment()) / dev->caps.mtt_entry_sz;
1457
1458         err = mlx4_init_icm_table(dev, &priv->mr_table.mtt_table,
1459                                   init_hca->mtt_base,
1460                                   dev->caps.mtt_entry_sz,
1461                                   dev->caps.num_mtts,
1462                                   dev->caps.reserved_mtts, 1, 0);
1463         if (err) {
1464                 mlx4_err(dev, "Failed to map MTT context memory, aborting\n");
1465                 goto err_unmap_eq;
1466         }
1467
1468         err = mlx4_init_icm_table(dev, &priv->mr_table.dmpt_table,
1469                                   init_hca->dmpt_base,
1470                                   dev_cap->dmpt_entry_sz,
1471                                   dev->caps.num_mpts,
1472                                   dev->caps.reserved_mrws, 1, 1);
1473         if (err) {
1474                 mlx4_err(dev, "Failed to map dMPT context memory, aborting\n");
1475                 goto err_unmap_mtt;
1476         }
1477
1478         err = mlx4_init_icm_table(dev, &priv->qp_table.qp_table,
1479                                   init_hca->qpc_base,
1480                                   dev_cap->qpc_entry_sz,
1481                                   dev->caps.num_qps,
1482                                   dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
1483                                   0, 0);
1484         if (err) {
1485                 mlx4_err(dev, "Failed to map QP context memory, aborting\n");
1486                 goto err_unmap_dmpt;
1487         }
1488
1489         err = mlx4_init_icm_table(dev, &priv->qp_table.auxc_table,
1490                                   init_hca->auxc_base,
1491                                   dev_cap->aux_entry_sz,
1492                                   dev->caps.num_qps,
1493                                   dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
1494                                   0, 0);
1495         if (err) {
1496                 mlx4_err(dev, "Failed to map AUXC context memory, aborting\n");
1497                 goto err_unmap_qp;
1498         }
1499
1500         err = mlx4_init_icm_table(dev, &priv->qp_table.altc_table,
1501                                   init_hca->altc_base,
1502                                   dev_cap->altc_entry_sz,
1503                                   dev->caps.num_qps,
1504                                   dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
1505                                   0, 0);
1506         if (err) {
1507                 mlx4_err(dev, "Failed to map ALTC context memory, aborting\n");
1508                 goto err_unmap_auxc;
1509         }
1510
1511         err = mlx4_init_icm_table(dev, &priv->qp_table.rdmarc_table,
1512                                   init_hca->rdmarc_base,
1513                                   dev_cap->rdmarc_entry_sz << priv->qp_table.rdmarc_shift,
1514                                   dev->caps.num_qps,
1515                                   dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
1516                                   0, 0);
1517         if (err) {
1518                 mlx4_err(dev, "Failed to map RDMARC context memory, aborting\n");
1519                 goto err_unmap_altc;
1520         }
1521
1522         err = mlx4_init_icm_table(dev, &priv->cq_table.table,
1523                                   init_hca->cqc_base,
1524                                   dev_cap->cqc_entry_sz,
1525                                   dev->caps.num_cqs,
1526                                   dev->caps.reserved_cqs, 0, 0);
1527         if (err) {
1528                 mlx4_err(dev, "Failed to map CQ context memory, aborting\n");
1529                 goto err_unmap_rdmarc;
1530         }
1531
1532         err = mlx4_init_icm_table(dev, &priv->srq_table.table,
1533                                   init_hca->srqc_base,
1534                                   dev_cap->srq_entry_sz,
1535                                   dev->caps.num_srqs,
1536                                   dev->caps.reserved_srqs, 0, 0);
1537         if (err) {
1538                 mlx4_err(dev, "Failed to map SRQ context memory, aborting\n");
1539                 goto err_unmap_cq;
1540         }
1541
1542         /*
1543          * For flow steering device managed mode it is required to use
1544          * mlx4_init_icm_table. For B0 steering mode it's not strictly
1545          * required, but for simplicity just map the whole multicast
1546          * group table now.  The table isn't very big and it's a lot
1547          * easier than trying to track ref counts.
1548          */
1549         err = mlx4_init_icm_table(dev, &priv->mcg_table.table,
1550                                   init_hca->mc_base,
1551                                   mlx4_get_mgm_entry_size(dev),
1552                                   dev->caps.num_mgms + dev->caps.num_amgms,
1553                                   dev->caps.num_mgms + dev->caps.num_amgms,
1554                                   0, 0);
1555         if (err) {
1556                 mlx4_err(dev, "Failed to map MCG context memory, aborting\n");
1557                 goto err_unmap_srq;
1558         }
1559
1560         return 0;
1561
1562 err_unmap_srq:
1563         mlx4_cleanup_icm_table(dev, &priv->srq_table.table);
1564
1565 err_unmap_cq:
1566         mlx4_cleanup_icm_table(dev, &priv->cq_table.table);
1567
1568 err_unmap_rdmarc:
1569         mlx4_cleanup_icm_table(dev, &priv->qp_table.rdmarc_table);
1570
1571 err_unmap_altc:
1572         mlx4_cleanup_icm_table(dev, &priv->qp_table.altc_table);
1573
1574 err_unmap_auxc:
1575         mlx4_cleanup_icm_table(dev, &priv->qp_table.auxc_table);
1576
1577 err_unmap_qp:
1578         mlx4_cleanup_icm_table(dev, &priv->qp_table.qp_table);
1579
1580 err_unmap_dmpt:
1581         mlx4_cleanup_icm_table(dev, &priv->mr_table.dmpt_table);
1582
1583 err_unmap_mtt:
1584         mlx4_cleanup_icm_table(dev, &priv->mr_table.mtt_table);
1585
1586 err_unmap_eq:
1587         mlx4_cleanup_icm_table(dev, &priv->eq_table.table);
1588
1589 err_unmap_cmpt:
1590         mlx4_cleanup_icm_table(dev, &priv->eq_table.cmpt_table);
1591         mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
1592         mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
1593         mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
1594
1595 err_unmap_aux:
1596         mlx4_UNMAP_ICM_AUX(dev);
1597
1598 err_free_aux:
1599         mlx4_free_icm(dev, priv->fw.aux_icm, 0);
1600
1601         return err;
1602 }
1603
1604 static void mlx4_free_icms(struct mlx4_dev *dev)
1605 {
1606         struct mlx4_priv *priv = mlx4_priv(dev);
1607
1608         mlx4_cleanup_icm_table(dev, &priv->mcg_table.table);
1609         mlx4_cleanup_icm_table(dev, &priv->srq_table.table);
1610         mlx4_cleanup_icm_table(dev, &priv->cq_table.table);
1611         mlx4_cleanup_icm_table(dev, &priv->qp_table.rdmarc_table);
1612         mlx4_cleanup_icm_table(dev, &priv->qp_table.altc_table);
1613         mlx4_cleanup_icm_table(dev, &priv->qp_table.auxc_table);
1614         mlx4_cleanup_icm_table(dev, &priv->qp_table.qp_table);
1615         mlx4_cleanup_icm_table(dev, &priv->mr_table.dmpt_table);
1616         mlx4_cleanup_icm_table(dev, &priv->mr_table.mtt_table);
1617         mlx4_cleanup_icm_table(dev, &priv->eq_table.table);
1618         mlx4_cleanup_icm_table(dev, &priv->eq_table.cmpt_table);
1619         mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
1620         mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
1621         mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
1622
1623         mlx4_UNMAP_ICM_AUX(dev);
1624         mlx4_free_icm(dev, priv->fw.aux_icm, 0);
1625 }
1626
1627 static void mlx4_slave_exit(struct mlx4_dev *dev)
1628 {
1629         struct mlx4_priv *priv = mlx4_priv(dev);
1630
1631         mutex_lock(&priv->cmd.slave_cmd_mutex);
1632         if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0, MLX4_COMM_CMD_NA_OP,
1633                           MLX4_COMM_TIME))
1634                 mlx4_warn(dev, "Failed to close slave function\n");
1635         mutex_unlock(&priv->cmd.slave_cmd_mutex);
1636 }
1637
1638 static int map_bf_area(struct mlx4_dev *dev)
1639 {
1640         struct mlx4_priv *priv = mlx4_priv(dev);
1641         resource_size_t bf_start;
1642         resource_size_t bf_len;
1643         int err = 0;
1644
1645         if (!dev->caps.bf_reg_size)
1646                 return -ENXIO;
1647
1648         bf_start = pci_resource_start(dev->persist->pdev, 2) +
1649                         (dev->caps.num_uars << PAGE_SHIFT);
1650         bf_len = pci_resource_len(dev->persist->pdev, 2) -
1651                         (dev->caps.num_uars << PAGE_SHIFT);
1652         priv->bf_mapping = io_mapping_create_wc(bf_start, bf_len);
1653         if (!priv->bf_mapping)
1654                 err = -ENOMEM;
1655
1656         return err;
1657 }
1658
1659 static void unmap_bf_area(struct mlx4_dev *dev)
1660 {
1661         if (mlx4_priv(dev)->bf_mapping)
1662                 io_mapping_free(mlx4_priv(dev)->bf_mapping);
1663 }
1664
1665 cycle_t mlx4_read_clock(struct mlx4_dev *dev)
1666 {
1667         u32 clockhi, clocklo, clockhi1;
1668         cycle_t cycles;
1669         int i;
1670         struct mlx4_priv *priv = mlx4_priv(dev);
1671
1672         for (i = 0; i < 10; i++) {
1673                 clockhi = swab32(readl(priv->clock_mapping));
1674                 clocklo = swab32(readl(priv->clock_mapping + 4));
1675                 clockhi1 = swab32(readl(priv->clock_mapping));
1676                 if (clockhi == clockhi1)
1677                         break;
1678         }
1679
1680         cycles = (u64) clockhi << 32 | (u64) clocklo;
1681
1682         return cycles;
1683 }
1684 EXPORT_SYMBOL_GPL(mlx4_read_clock);
1685
1686
1687 static int map_internal_clock(struct mlx4_dev *dev)
1688 {
1689         struct mlx4_priv *priv = mlx4_priv(dev);
1690
1691         priv->clock_mapping =
1692                 ioremap(pci_resource_start(dev->persist->pdev,
1693                                            priv->fw.clock_bar) +
1694                         priv->fw.clock_offset, MLX4_CLOCK_SIZE);
1695
1696         if (!priv->clock_mapping)
1697                 return -ENOMEM;
1698
1699         return 0;
1700 }
1701
1702 int mlx4_get_internal_clock_params(struct mlx4_dev *dev,
1703                                    struct mlx4_clock_params *params)
1704 {
1705         struct mlx4_priv *priv = mlx4_priv(dev);
1706
1707         if (mlx4_is_slave(dev))
1708                 return -ENOTSUPP;
1709
1710         if (!params)
1711                 return -EINVAL;
1712
1713         params->bar = priv->fw.clock_bar;
1714         params->offset = priv->fw.clock_offset;
1715         params->size = MLX4_CLOCK_SIZE;
1716
1717         return 0;
1718 }
1719 EXPORT_SYMBOL_GPL(mlx4_get_internal_clock_params);
1720
1721 static void unmap_internal_clock(struct mlx4_dev *dev)
1722 {
1723         struct mlx4_priv *priv = mlx4_priv(dev);
1724
1725         if (priv->clock_mapping)
1726                 iounmap(priv->clock_mapping);
1727 }
1728
1729 static void mlx4_close_hca(struct mlx4_dev *dev)
1730 {
1731         unmap_internal_clock(dev);
1732         unmap_bf_area(dev);
1733         if (mlx4_is_slave(dev))
1734                 mlx4_slave_exit(dev);
1735         else {
1736                 mlx4_CLOSE_HCA(dev, 0);
1737                 mlx4_free_icms(dev);
1738         }
1739 }
1740
1741 static void mlx4_close_fw(struct mlx4_dev *dev)
1742 {
1743         if (!mlx4_is_slave(dev)) {
1744                 mlx4_UNMAP_FA(dev);
1745                 mlx4_free_icm(dev, mlx4_priv(dev)->fw.fw_icm, 0);
1746         }
1747 }
1748
1749 static int mlx4_comm_check_offline(struct mlx4_dev *dev)
1750 {
1751 #define COMM_CHAN_OFFLINE_OFFSET 0x09
1752
1753         u32 comm_flags;
1754         u32 offline_bit;
1755         unsigned long end;
1756         struct mlx4_priv *priv = mlx4_priv(dev);
1757
1758         end = msecs_to_jiffies(MLX4_COMM_OFFLINE_TIME_OUT) + jiffies;
1759         while (time_before(jiffies, end)) {
1760                 comm_flags = swab32(readl((__iomem char *)priv->mfunc.comm +
1761                                           MLX4_COMM_CHAN_FLAGS));
1762                 offline_bit = (comm_flags &
1763                                (u32)(1 << COMM_CHAN_OFFLINE_OFFSET));
1764                 if (!offline_bit)
1765                         return 0;
1766                 /* There are cases as part of AER/Reset flow that PF needs
1767                  * around 100 msec to load. We therefore sleep for 100 msec
1768                  * to allow other tasks to make use of that CPU during this
1769                  * time interval.
1770                  */
1771                 msleep(100);
1772         }
1773         mlx4_err(dev, "Communication channel is offline.\n");
1774         return -EIO;
1775 }
1776
1777 static void mlx4_reset_vf_support(struct mlx4_dev *dev)
1778 {
1779 #define COMM_CHAN_RST_OFFSET 0x1e
1780
1781         struct mlx4_priv *priv = mlx4_priv(dev);
1782         u32 comm_rst;
1783         u32 comm_caps;
1784
1785         comm_caps = swab32(readl((__iomem char *)priv->mfunc.comm +
1786                                  MLX4_COMM_CHAN_CAPS));
1787         comm_rst = (comm_caps & (u32)(1 << COMM_CHAN_RST_OFFSET));
1788
1789         if (comm_rst)
1790                 dev->caps.vf_caps |= MLX4_VF_CAP_FLAG_RESET;
1791 }
1792
1793 static int mlx4_init_slave(struct mlx4_dev *dev)
1794 {
1795         struct mlx4_priv *priv = mlx4_priv(dev);
1796         u64 dma = (u64) priv->mfunc.vhcr_dma;
1797         int ret_from_reset = 0;
1798         u32 slave_read;
1799         u32 cmd_channel_ver;
1800
1801         if (atomic_read(&pf_loading)) {
1802                 mlx4_warn(dev, "PF is not ready - Deferring probe\n");
1803                 return -EPROBE_DEFER;
1804         }
1805
1806         mutex_lock(&priv->cmd.slave_cmd_mutex);
1807         priv->cmd.max_cmds = 1;
1808         if (mlx4_comm_check_offline(dev)) {
1809                 mlx4_err(dev, "PF is not responsive, skipping initialization\n");
1810                 goto err_offline;
1811         }
1812
1813         mlx4_reset_vf_support(dev);
1814         mlx4_warn(dev, "Sending reset\n");
1815         ret_from_reset = mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0,
1816                                        MLX4_COMM_CMD_NA_OP, MLX4_COMM_TIME);
1817         /* if we are in the middle of flr the slave will try
1818          * NUM_OF_RESET_RETRIES times before leaving.*/
1819         if (ret_from_reset) {
1820                 if (MLX4_DELAY_RESET_SLAVE == ret_from_reset) {
1821                         mlx4_warn(dev, "slave is currently in the middle of FLR - Deferring probe\n");
1822                         mutex_unlock(&priv->cmd.slave_cmd_mutex);
1823                         return -EPROBE_DEFER;
1824                 } else
1825                         goto err;
1826         }
1827
1828         /* check the driver version - the slave I/F revision
1829          * must match the master's */
1830         slave_read = swab32(readl(&priv->mfunc.comm->slave_read));
1831         cmd_channel_ver = mlx4_comm_get_version();
1832
1833         if (MLX4_COMM_GET_IF_REV(cmd_channel_ver) !=
1834                 MLX4_COMM_GET_IF_REV(slave_read)) {
1835                 mlx4_err(dev, "slave driver version is not supported by the master\n");
1836                 goto err;
1837         }
1838
1839         mlx4_warn(dev, "Sending vhcr0\n");
1840         if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR0, dma >> 48,
1841                              MLX4_COMM_CMD_NA_OP, MLX4_COMM_TIME))
1842                 goto err;
1843         if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR1, dma >> 32,
1844                              MLX4_COMM_CMD_NA_OP, MLX4_COMM_TIME))
1845                 goto err;
1846         if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR2, dma >> 16,
1847                              MLX4_COMM_CMD_NA_OP, MLX4_COMM_TIME))
1848                 goto err;
1849         if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR_EN, dma,
1850                           MLX4_COMM_CMD_NA_OP, MLX4_COMM_TIME))
1851                 goto err;
1852
1853         mutex_unlock(&priv->cmd.slave_cmd_mutex);
1854         return 0;
1855
1856 err:
1857         mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0, MLX4_COMM_CMD_NA_OP, 0);
1858 err_offline:
1859         mutex_unlock(&priv->cmd.slave_cmd_mutex);
1860         return -EIO;
1861 }
1862
1863 static void mlx4_parav_master_pf_caps(struct mlx4_dev *dev)
1864 {
1865         int i;
1866
1867         for (i = 1; i <= dev->caps.num_ports; i++) {
1868                 if (dev->caps.port_type[i] == MLX4_PORT_TYPE_ETH)
1869                         dev->caps.gid_table_len[i] =
1870                                 mlx4_get_slave_num_gids(dev, 0, i);
1871                 else
1872                         dev->caps.gid_table_len[i] = 1;
1873                 dev->caps.pkey_table_len[i] =
1874                         dev->phys_caps.pkey_phys_table_len[i] - 1;
1875         }
1876 }
1877
1878 static int choose_log_fs_mgm_entry_size(int qp_per_entry)
1879 {
1880         int i = MLX4_MIN_MGM_LOG_ENTRY_SIZE;
1881
1882         for (i = MLX4_MIN_MGM_LOG_ENTRY_SIZE; i <= MLX4_MAX_MGM_LOG_ENTRY_SIZE;
1883               i++) {
1884                 if (qp_per_entry <= 4 * ((1 << i) / 16 - 2))
1885                         break;
1886         }
1887
1888         return (i <= MLX4_MAX_MGM_LOG_ENTRY_SIZE) ? i : -1;
1889 }
1890
1891 static const char *dmfs_high_rate_steering_mode_str(int dmfs_high_steer_mode)
1892 {
1893         switch (dmfs_high_steer_mode) {
1894         case MLX4_STEERING_DMFS_A0_DEFAULT:
1895                 return "default performance";
1896
1897         case MLX4_STEERING_DMFS_A0_DYNAMIC:
1898                 return "dynamic hybrid mode";
1899
1900         case MLX4_STEERING_DMFS_A0_STATIC:
1901                 return "performance optimized for limited rule configuration (static)";
1902
1903         case MLX4_STEERING_DMFS_A0_DISABLE:
1904                 return "disabled performance optimized steering";
1905
1906         case MLX4_STEERING_DMFS_A0_NOT_SUPPORTED:
1907                 return "performance optimized steering not supported";
1908
1909         default:
1910                 return "Unrecognized mode";
1911         }
1912 }
1913
1914 #define MLX4_DMFS_A0_STEERING                   (1UL << 2)
1915
1916 static void choose_steering_mode(struct mlx4_dev *dev,
1917                                  struct mlx4_dev_cap *dev_cap)
1918 {
1919         if (mlx4_log_num_mgm_entry_size <= 0) {
1920                 if ((-mlx4_log_num_mgm_entry_size) & MLX4_DMFS_A0_STEERING) {
1921                         if (dev->caps.dmfs_high_steer_mode ==
1922                             MLX4_STEERING_DMFS_A0_NOT_SUPPORTED)
1923                                 mlx4_err(dev, "DMFS high rate mode not supported\n");
1924                         else
1925                                 dev->caps.dmfs_high_steer_mode =
1926                                         MLX4_STEERING_DMFS_A0_STATIC;
1927                 }
1928         }
1929
1930         if (mlx4_log_num_mgm_entry_size <= 0 &&
1931             dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_FS_EN &&
1932             (!mlx4_is_mfunc(dev) ||
1933              (dev_cap->fs_max_num_qp_per_entry >=
1934              (dev->persist->num_vfs + 1))) &&
1935             choose_log_fs_mgm_entry_size(dev_cap->fs_max_num_qp_per_entry) >=
1936                 MLX4_MIN_MGM_LOG_ENTRY_SIZE) {
1937                 dev->oper_log_mgm_entry_size =
1938                         choose_log_fs_mgm_entry_size(dev_cap->fs_max_num_qp_per_entry);
1939                 dev->caps.steering_mode = MLX4_STEERING_MODE_DEVICE_MANAGED;
1940                 dev->caps.num_qp_per_mgm = dev_cap->fs_max_num_qp_per_entry;
1941                 dev->caps.fs_log_max_ucast_qp_range_size =
1942                         dev_cap->fs_log_max_ucast_qp_range_size;
1943         } else {
1944                 if (dev->caps.dmfs_high_steer_mode !=
1945                     MLX4_STEERING_DMFS_A0_NOT_SUPPORTED)
1946                         dev->caps.dmfs_high_steer_mode = MLX4_STEERING_DMFS_A0_DISABLE;
1947                 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER &&
1948                     dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER)
1949                         dev->caps.steering_mode = MLX4_STEERING_MODE_B0;
1950                 else {
1951                         dev->caps.steering_mode = MLX4_STEERING_MODE_A0;
1952
1953                         if (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER ||
1954                             dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER)
1955                                 mlx4_warn(dev, "Must have both UC_STEER and MC_STEER flags set to use B0 steering - falling back to A0 steering mode\n");
1956                 }
1957                 dev->oper_log_mgm_entry_size =
1958                         mlx4_log_num_mgm_entry_size > 0 ?
1959                         mlx4_log_num_mgm_entry_size :
1960                         MLX4_DEFAULT_MGM_LOG_ENTRY_SIZE;
1961                 dev->caps.num_qp_per_mgm = mlx4_get_qp_per_mgm(dev);
1962         }
1963         mlx4_dbg(dev, "Steering mode is: %s, oper_log_mgm_entry_size = %d, modparam log_num_mgm_entry_size = %d\n",
1964                  mlx4_steering_mode_str(dev->caps.steering_mode),
1965                  dev->oper_log_mgm_entry_size,
1966                  mlx4_log_num_mgm_entry_size);
1967 }
1968
1969 static void choose_tunnel_offload_mode(struct mlx4_dev *dev,
1970                                        struct mlx4_dev_cap *dev_cap)
1971 {
1972         if (dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED &&
1973             dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_VXLAN_OFFLOADS)
1974                 dev->caps.tunnel_offload_mode = MLX4_TUNNEL_OFFLOAD_MODE_VXLAN;
1975         else
1976                 dev->caps.tunnel_offload_mode = MLX4_TUNNEL_OFFLOAD_MODE_NONE;
1977
1978         mlx4_dbg(dev, "Tunneling offload mode is: %s\n",  (dev->caps.tunnel_offload_mode
1979                  == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) ? "vxlan" : "none");
1980 }
1981
1982 static int mlx4_validate_optimized_steering(struct mlx4_dev *dev)
1983 {
1984         int i;
1985         struct mlx4_port_cap port_cap;
1986
1987         if (dev->caps.dmfs_high_steer_mode == MLX4_STEERING_DMFS_A0_NOT_SUPPORTED)
1988                 return -EINVAL;
1989
1990         for (i = 1; i <= dev->caps.num_ports; i++) {
1991                 if (mlx4_dev_port(dev, i, &port_cap)) {
1992                         mlx4_err(dev,
1993                                  "QUERY_DEV_CAP command failed, can't veify DMFS high rate steering.\n");
1994                 } else if ((dev->caps.dmfs_high_steer_mode !=
1995                             MLX4_STEERING_DMFS_A0_DEFAULT) &&
1996                            (port_cap.dmfs_optimized_state ==
1997                             !!(dev->caps.dmfs_high_steer_mode ==
1998                             MLX4_STEERING_DMFS_A0_DISABLE))) {
1999                         mlx4_err(dev,
2000                                  "DMFS high rate steer mode differ, driver requested %s but %s in FW.\n",
2001                                  dmfs_high_rate_steering_mode_str(
2002                                         dev->caps.dmfs_high_steer_mode),
2003                                  (port_cap.dmfs_optimized_state ?
2004                                         "enabled" : "disabled"));
2005                 }
2006         }
2007
2008         return 0;
2009 }
2010
2011 static int mlx4_init_fw(struct mlx4_dev *dev)
2012 {
2013         struct mlx4_mod_stat_cfg   mlx4_cfg;
2014         int err = 0;
2015
2016         if (!mlx4_is_slave(dev)) {
2017                 err = mlx4_QUERY_FW(dev);
2018                 if (err) {
2019                         if (err == -EACCES)
2020                                 mlx4_info(dev, "non-primary physical function, skipping\n");
2021                         else
2022                                 mlx4_err(dev, "QUERY_FW command failed, aborting\n");
2023                         return err;
2024                 }
2025
2026                 err = mlx4_load_fw(dev);
2027                 if (err) {
2028                         mlx4_err(dev, "Failed to start FW, aborting\n");
2029                         return err;
2030                 }
2031
2032                 mlx4_cfg.log_pg_sz_m = 1;
2033                 mlx4_cfg.log_pg_sz = 0;
2034                 err = mlx4_MOD_STAT_CFG(dev, &mlx4_cfg);
2035                 if (err)
2036                         mlx4_warn(dev, "Failed to override log_pg_sz parameter\n");
2037         }
2038
2039         return err;
2040 }
2041
2042 static int mlx4_init_hca(struct mlx4_dev *dev)
2043 {
2044         struct mlx4_priv          *priv = mlx4_priv(dev);
2045         struct mlx4_adapter        adapter;
2046         struct mlx4_dev_cap        dev_cap;
2047         struct mlx4_profile        profile;
2048         struct mlx4_init_hca_param init_hca;
2049         u64 icm_size;
2050         struct mlx4_config_dev_params params;
2051         int err;
2052
2053         if (!mlx4_is_slave(dev)) {
2054                 err = mlx4_dev_cap(dev, &dev_cap);
2055                 if (err) {
2056                         mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting\n");
2057                         return err;
2058                 }
2059
2060                 choose_steering_mode(dev, &dev_cap);
2061                 choose_tunnel_offload_mode(dev, &dev_cap);
2062
2063                 if (dev->caps.dmfs_high_steer_mode == MLX4_STEERING_DMFS_A0_STATIC &&
2064                     mlx4_is_master(dev))
2065                         dev->caps.function_caps |= MLX4_FUNC_CAP_DMFS_A0_STATIC;
2066
2067                 err = mlx4_get_phys_port_id(dev);
2068                 if (err)
2069                         mlx4_err(dev, "Fail to get physical port id\n");
2070
2071                 if (mlx4_is_master(dev))
2072                         mlx4_parav_master_pf_caps(dev);
2073
2074                 if (mlx4_low_memory_profile()) {
2075                         mlx4_info(dev, "Running from within kdump kernel. Using low memory profile\n");
2076                         profile = low_mem_profile;
2077                 } else {
2078                         profile = default_profile;
2079                 }
2080                 if (dev->caps.steering_mode ==
2081                     MLX4_STEERING_MODE_DEVICE_MANAGED)
2082                         profile.num_mcg = MLX4_FS_NUM_MCG;
2083
2084                 icm_size = mlx4_make_profile(dev, &profile, &dev_cap,
2085                                              &init_hca);
2086                 if ((long long) icm_size < 0) {
2087                         err = icm_size;
2088                         return err;
2089                 }
2090
2091                 dev->caps.max_fmr_maps = (1 << (32 - ilog2(dev->caps.num_mpts))) - 1;
2092
2093                 init_hca.log_uar_sz = ilog2(dev->caps.num_uars);
2094                 init_hca.uar_page_sz = PAGE_SHIFT - 12;
2095                 init_hca.mw_enabled = 0;
2096                 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_MEM_WINDOW ||
2097                     dev->caps.bmme_flags & MLX4_BMME_FLAG_TYPE_2_WIN)
2098                         init_hca.mw_enabled = INIT_HCA_TPT_MW_ENABLE;
2099
2100                 err = mlx4_init_icm(dev, &dev_cap, &init_hca, icm_size);
2101                 if (err)
2102                         return err;
2103
2104                 err = mlx4_INIT_HCA(dev, &init_hca);
2105                 if (err) {
2106                         mlx4_err(dev, "INIT_HCA command failed, aborting\n");
2107                         goto err_free_icm;
2108                 }
2109
2110                 if (dev_cap.flags2 & MLX4_DEV_CAP_FLAG2_SYS_EQS) {
2111                         err = mlx4_query_func(dev, &dev_cap);
2112                         if (err < 0) {
2113                                 mlx4_err(dev, "QUERY_FUNC command failed, aborting.\n");
2114                                 goto err_close;
2115                         } else if (err & MLX4_QUERY_FUNC_NUM_SYS_EQS) {
2116                                 dev->caps.num_eqs = dev_cap.max_eqs;
2117                                 dev->caps.reserved_eqs = dev_cap.reserved_eqs;
2118                                 dev->caps.reserved_uars = dev_cap.reserved_uars;
2119                         }
2120                 }
2121
2122                 /*
2123                  * If TS is supported by FW
2124                  * read HCA frequency by QUERY_HCA command
2125                  */
2126                 if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS) {
2127                         memset(&init_hca, 0, sizeof(init_hca));
2128                         err = mlx4_QUERY_HCA(dev, &init_hca);
2129                         if (err) {
2130                                 mlx4_err(dev, "QUERY_HCA command failed, disable timestamp\n");
2131                                 dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_TS;
2132                         } else {
2133                                 dev->caps.hca_core_clock =
2134                                         init_hca.hca_core_clock;
2135                         }
2136
2137                         /* In case we got HCA frequency 0 - disable timestamping
2138                          * to avoid dividing by zero
2139                          */
2140                         if (!dev->caps.hca_core_clock) {
2141                                 dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_TS;
2142                                 mlx4_err(dev,
2143                                          "HCA frequency is 0 - timestamping is not supported\n");
2144                         } else if (map_internal_clock(dev)) {
2145                                 /*
2146                                  * Map internal clock,
2147                                  * in case of failure disable timestamping
2148                                  */
2149                                 dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_TS;
2150                                 mlx4_err(dev, "Failed to map internal clock. Timestamping is not supported\n");
2151                         }
2152                 }
2153
2154                 if (dev->caps.dmfs_high_steer_mode !=
2155                     MLX4_STEERING_DMFS_A0_NOT_SUPPORTED) {
2156                         if (mlx4_validate_optimized_steering(dev))
2157                                 mlx4_warn(dev, "Optimized steering validation failed\n");
2158
2159                         if (dev->caps.dmfs_high_steer_mode ==
2160                             MLX4_STEERING_DMFS_A0_DISABLE) {
2161                                 dev->caps.dmfs_high_rate_qpn_base =
2162                                         dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW];
2163                                 dev->caps.dmfs_high_rate_qpn_range =
2164                                         MLX4_A0_STEERING_TABLE_SIZE;
2165                         }
2166
2167                         mlx4_dbg(dev, "DMFS high rate steer mode is: %s\n",
2168                                  dmfs_high_rate_steering_mode_str(
2169                                         dev->caps.dmfs_high_steer_mode));
2170                 }
2171         } else {
2172                 err = mlx4_init_slave(dev);
2173                 if (err) {
2174                         if (err != -EPROBE_DEFER)
2175                                 mlx4_err(dev, "Failed to initialize slave\n");
2176                         return err;
2177                 }
2178
2179                 err = mlx4_slave_cap(dev);
2180                 if (err) {
2181                         mlx4_err(dev, "Failed to obtain slave caps\n");
2182                         goto err_close;
2183                 }
2184         }
2185
2186         if (map_bf_area(dev))
2187                 mlx4_dbg(dev, "Failed to map blue flame area\n");
2188
2189         /*Only the master set the ports, all the rest got it from it.*/
2190         if (!mlx4_is_slave(dev))
2191                 mlx4_set_port_mask(dev);
2192
2193         err = mlx4_QUERY_ADAPTER(dev, &adapter);
2194         if (err) {
2195                 mlx4_err(dev, "QUERY_ADAPTER command failed, aborting\n");
2196                 goto unmap_bf;
2197         }
2198
2199         /* Query CONFIG_DEV parameters */
2200         err = mlx4_config_dev_retrieval(dev, &params);
2201         if (err && err != -ENOTSUPP) {
2202                 mlx4_err(dev, "Failed to query CONFIG_DEV parameters\n");
2203         } else if (!err) {
2204                 dev->caps.rx_checksum_flags_port[1] = params.rx_csum_flags_port_1;
2205                 dev->caps.rx_checksum_flags_port[2] = params.rx_csum_flags_port_2;
2206         }
2207         priv->eq_table.inta_pin = adapter.inta_pin;
2208         memcpy(dev->board_id, adapter.board_id, sizeof dev->board_id);
2209
2210         return 0;
2211
2212 unmap_bf:
2213         unmap_internal_clock(dev);
2214         unmap_bf_area(dev);
2215
2216         if (mlx4_is_slave(dev)) {
2217                 kfree(dev->caps.qp0_qkey);
2218                 kfree(dev->caps.qp0_tunnel);
2219                 kfree(dev->caps.qp0_proxy);
2220                 kfree(dev->caps.qp1_tunnel);
2221                 kfree(dev->caps.qp1_proxy);
2222         }
2223
2224 err_close:
2225         if (mlx4_is_slave(dev))
2226                 mlx4_slave_exit(dev);
2227         else
2228                 mlx4_CLOSE_HCA(dev, 0);
2229
2230 err_free_icm:
2231         if (!mlx4_is_slave(dev))
2232                 mlx4_free_icms(dev);
2233
2234         return err;
2235 }
2236
2237 static int mlx4_init_counters_table(struct mlx4_dev *dev)
2238 {
2239         struct mlx4_priv *priv = mlx4_priv(dev);
2240         int nent_pow2;
2241
2242         if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS))
2243                 return -ENOENT;
2244
2245         if (!dev->caps.max_counters)
2246                 return -ENOSPC;
2247
2248         nent_pow2 = roundup_pow_of_two(dev->caps.max_counters);
2249         /* reserve last counter index for sink counter */
2250         return mlx4_bitmap_init(&priv->counters_bitmap, nent_pow2,
2251                                 nent_pow2 - 1, 0,
2252                                 nent_pow2 - dev->caps.max_counters + 1);
2253 }
2254
2255 static void mlx4_cleanup_counters_table(struct mlx4_dev *dev)
2256 {
2257         if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS))
2258                 return;
2259
2260         if (!dev->caps.max_counters)
2261                 return;
2262
2263         mlx4_bitmap_cleanup(&mlx4_priv(dev)->counters_bitmap);
2264 }
2265
2266 static void mlx4_cleanup_default_counters(struct mlx4_dev *dev)
2267 {
2268         struct mlx4_priv *priv = mlx4_priv(dev);
2269         int port;
2270
2271         for (port = 0; port < dev->caps.num_ports; port++)
2272                 if (priv->def_counter[port] != -1)
2273                         mlx4_counter_free(dev,  priv->def_counter[port]);
2274 }
2275
2276 static int mlx4_allocate_default_counters(struct mlx4_dev *dev)
2277 {
2278         struct mlx4_priv *priv = mlx4_priv(dev);
2279         int port, err = 0;
2280         u32 idx;
2281
2282         for (port = 0; port < dev->caps.num_ports; port++)
2283                 priv->def_counter[port] = -1;
2284
2285         for (port = 0; port < dev->caps.num_ports; port++) {
2286                 err = mlx4_counter_alloc(dev, &idx);
2287
2288                 if (!err || err == -ENOSPC) {
2289                         priv->def_counter[port] = idx;
2290                 } else if (err == -ENOENT) {
2291                         err = 0;
2292                         continue;
2293                 } else if (mlx4_is_slave(dev) && err == -EINVAL) {
2294                         priv->def_counter[port] = MLX4_SINK_COUNTER_INDEX(dev);
2295                         mlx4_warn(dev, "can't allocate counter from old PF driver, using index %d\n",
2296                                   MLX4_SINK_COUNTER_INDEX(dev));
2297                         err = 0;
2298                 } else {
2299                         mlx4_err(dev, "%s: failed to allocate default counter port %d err %d\n",
2300                                  __func__, port + 1, err);
2301                         mlx4_cleanup_default_counters(dev);
2302                         return err;
2303                 }
2304
2305                 mlx4_dbg(dev, "%s: default counter index %d for port %d\n",
2306                          __func__, priv->def_counter[port], port + 1);
2307         }
2308
2309         return err;
2310 }
2311
2312 int __mlx4_counter_alloc(struct mlx4_dev *dev, u32 *idx)
2313 {
2314         struct mlx4_priv *priv = mlx4_priv(dev);
2315
2316         if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS))
2317                 return -ENOENT;
2318
2319         *idx = mlx4_bitmap_alloc(&priv->counters_bitmap);
2320         if (*idx == -1) {
2321                 *idx = MLX4_SINK_COUNTER_INDEX(dev);
2322                 return -ENOSPC;
2323         }
2324
2325         return 0;
2326 }
2327
2328 int mlx4_counter_alloc(struct mlx4_dev *dev, u32 *idx)
2329 {
2330         u64 out_param;
2331         int err;
2332
2333         if (mlx4_is_mfunc(dev)) {
2334                 err = mlx4_cmd_imm(dev, 0, &out_param, RES_COUNTER,
2335                                    RES_OP_RESERVE, MLX4_CMD_ALLOC_RES,
2336                                    MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
2337                 if (!err)
2338                         *idx = get_param_l(&out_param);
2339
2340                 return err;
2341         }
2342         return __mlx4_counter_alloc(dev, idx);
2343 }
2344 EXPORT_SYMBOL_GPL(mlx4_counter_alloc);
2345
2346 static int __mlx4_clear_if_stat(struct mlx4_dev *dev,
2347                                 u8 counter_index)
2348 {
2349         struct mlx4_cmd_mailbox *if_stat_mailbox;
2350         int err;
2351         u32 if_stat_in_mod = (counter_index & 0xff) | MLX4_QUERY_IF_STAT_RESET;
2352
2353         if_stat_mailbox = mlx4_alloc_cmd_mailbox(dev);
2354         if (IS_ERR(if_stat_mailbox))
2355                 return PTR_ERR(if_stat_mailbox);
2356
2357         err = mlx4_cmd_box(dev, 0, if_stat_mailbox->dma, if_stat_in_mod, 0,
2358                            MLX4_CMD_QUERY_IF_STAT, MLX4_CMD_TIME_CLASS_C,
2359                            MLX4_CMD_NATIVE);
2360
2361         mlx4_free_cmd_mailbox(dev, if_stat_mailbox);
2362         return err;
2363 }
2364
2365 void __mlx4_counter_free(struct mlx4_dev *dev, u32 idx)
2366 {
2367         if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS))
2368                 return;
2369
2370         if (idx == MLX4_SINK_COUNTER_INDEX(dev))
2371                 return;
2372
2373         __mlx4_clear_if_stat(dev, idx);
2374
2375         mlx4_bitmap_free(&mlx4_priv(dev)->counters_bitmap, idx, MLX4_USE_RR);
2376         return;
2377 }
2378
2379 void mlx4_counter_free(struct mlx4_dev *dev, u32 idx)
2380 {
2381         u64 in_param = 0;
2382
2383         if (mlx4_is_mfunc(dev)) {
2384                 set_param_l(&in_param, idx);
2385                 mlx4_cmd(dev, in_param, RES_COUNTER, RES_OP_RESERVE,
2386                          MLX4_CMD_FREE_RES, MLX4_CMD_TIME_CLASS_A,
2387                          MLX4_CMD_WRAPPED);
2388                 return;
2389         }
2390         __mlx4_counter_free(dev, idx);
2391 }
2392 EXPORT_SYMBOL_GPL(mlx4_counter_free);
2393
2394 int mlx4_get_default_counter_index(struct mlx4_dev *dev, int port)
2395 {
2396         struct mlx4_priv *priv = mlx4_priv(dev);
2397
2398         return priv->def_counter[port - 1];
2399 }
2400 EXPORT_SYMBOL_GPL(mlx4_get_default_counter_index);
2401
2402 void mlx4_set_admin_guid(struct mlx4_dev *dev, __be64 guid, int entry, int port)
2403 {
2404         struct mlx4_priv *priv = mlx4_priv(dev);
2405
2406         priv->mfunc.master.vf_admin[entry].vport[port].guid = guid;
2407 }
2408 EXPORT_SYMBOL_GPL(mlx4_set_admin_guid);
2409
2410 __be64 mlx4_get_admin_guid(struct mlx4_dev *dev, int entry, int port)
2411 {
2412         struct mlx4_priv *priv = mlx4_priv(dev);
2413
2414         return priv->mfunc.master.vf_admin[entry].vport[port].guid;
2415 }
2416 EXPORT_SYMBOL_GPL(mlx4_get_admin_guid);
2417
2418 void mlx4_set_random_admin_guid(struct mlx4_dev *dev, int entry, int port)
2419 {
2420         struct mlx4_priv *priv = mlx4_priv(dev);
2421         __be64 guid;
2422
2423         /* hw GUID */
2424         if (entry == 0)
2425                 return;
2426
2427         get_random_bytes((char *)&guid, sizeof(guid));
2428         guid &= ~(cpu_to_be64(1ULL << 56));
2429         guid |= cpu_to_be64(1ULL << 57);
2430         priv->mfunc.master.vf_admin[entry].vport[port].guid = guid;
2431 }
2432
2433 static int mlx4_setup_hca(struct mlx4_dev *dev)
2434 {
2435         struct mlx4_priv *priv = mlx4_priv(dev);
2436         int err;
2437         int port;
2438         __be32 ib_port_default_caps;
2439
2440         err = mlx4_init_uar_table(dev);
2441         if (err) {
2442                 mlx4_err(dev, "Failed to initialize user access region table, aborting\n");
2443                  return err;
2444         }
2445
2446         err = mlx4_uar_alloc(dev, &priv->driver_uar);
2447         if (err) {
2448                 mlx4_err(dev, "Failed to allocate driver access region, aborting\n");
2449                 goto err_uar_table_free;
2450         }
2451
2452         priv->kar = ioremap((phys_addr_t) priv->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
2453         if (!priv->kar) {
2454                 mlx4_err(dev, "Couldn't map kernel access region, aborting\n");
2455                 err = -ENOMEM;
2456                 goto err_uar_free;
2457         }
2458
2459         err = mlx4_init_pd_table(dev);
2460         if (err) {
2461                 mlx4_err(dev, "Failed to initialize protection domain table, aborting\n");
2462                 goto err_kar_unmap;
2463         }
2464
2465         err = mlx4_init_xrcd_table(dev);
2466         if (err) {
2467                 mlx4_err(dev, "Failed to initialize reliable connection domain table, aborting\n");
2468                 goto err_pd_table_free;
2469         }
2470
2471         err = mlx4_init_mr_table(dev);
2472         if (err) {
2473                 mlx4_err(dev, "Failed to initialize memory region table, aborting\n");
2474                 goto err_xrcd_table_free;
2475         }
2476
2477         if (!mlx4_is_slave(dev)) {
2478                 err = mlx4_init_mcg_table(dev);
2479                 if (err) {
2480                         mlx4_err(dev, "Failed to initialize multicast group table, aborting\n");
2481                         goto err_mr_table_free;
2482                 }
2483                 err = mlx4_config_mad_demux(dev);
2484                 if (err) {
2485                         mlx4_err(dev, "Failed in config_mad_demux, aborting\n");
2486                         goto err_mcg_table_free;
2487                 }
2488         }
2489
2490         err = mlx4_init_eq_table(dev);
2491         if (err) {
2492                 mlx4_err(dev, "Failed to initialize event queue table, aborting\n");
2493                 goto err_mcg_table_free;
2494         }
2495
2496         err = mlx4_cmd_use_events(dev);
2497         if (err) {
2498                 mlx4_err(dev, "Failed to switch to event-driven firmware commands, aborting\n");
2499                 goto err_eq_table_free;
2500         }
2501
2502         err = mlx4_NOP(dev);
2503         if (err) {
2504                 if (dev->flags & MLX4_FLAG_MSI_X) {
2505                         mlx4_warn(dev, "NOP command failed to generate MSI-X interrupt IRQ %d)\n",
2506                                   priv->eq_table.eq[MLX4_EQ_ASYNC].irq);
2507                         mlx4_warn(dev, "Trying again without MSI-X\n");
2508                 } else {
2509                         mlx4_err(dev, "NOP command failed to generate interrupt (IRQ %d), aborting\n",
2510                                  priv->eq_table.eq[MLX4_EQ_ASYNC].irq);
2511                         mlx4_err(dev, "BIOS or ACPI interrupt routing problem?\n");
2512                 }
2513
2514                 goto err_cmd_poll;
2515         }
2516
2517         mlx4_dbg(dev, "NOP command IRQ test passed\n");
2518
2519         err = mlx4_init_cq_table(dev);
2520         if (err) {
2521                 mlx4_err(dev, "Failed to initialize completion queue table, aborting\n");
2522                 goto err_cmd_poll;
2523         }
2524
2525         err = mlx4_init_srq_table(dev);
2526         if (err) {
2527                 mlx4_err(dev, "Failed to initialize shared receive queue table, aborting\n");
2528                 goto err_cq_table_free;
2529         }
2530
2531         err = mlx4_init_qp_table(dev);
2532         if (err) {
2533                 mlx4_err(dev, "Failed to initialize queue pair table, aborting\n");
2534                 goto err_srq_table_free;
2535         }
2536
2537         if (!mlx4_is_slave(dev)) {
2538                 err = mlx4_init_counters_table(dev);
2539                 if (err && err != -ENOENT) {
2540                         mlx4_err(dev, "Failed to initialize counters table, aborting\n");
2541                         goto err_qp_table_free;
2542                 }
2543         }
2544
2545         err = mlx4_allocate_default_counters(dev);
2546         if (err) {
2547                 mlx4_err(dev, "Failed to allocate default counters, aborting\n");
2548                 goto err_counters_table_free;
2549         }
2550
2551         if (!mlx4_is_slave(dev)) {
2552                 for (port = 1; port <= dev->caps.num_ports; port++) {
2553                         ib_port_default_caps = 0;
2554                         err = mlx4_get_port_ib_caps(dev, port,
2555                                                     &ib_port_default_caps);
2556                         if (err)
2557                                 mlx4_warn(dev, "failed to get port %d default ib capabilities (%d). Continuing with caps = 0\n",
2558                                           port, err);
2559                         dev->caps.ib_port_def_cap[port] = ib_port_default_caps;
2560
2561                         /* initialize per-slave default ib port capabilities */
2562                         if (mlx4_is_master(dev)) {
2563                                 int i;
2564                                 for (i = 0; i < dev->num_slaves; i++) {
2565                                         if (i == mlx4_master_func_num(dev))
2566                                                 continue;
2567                                         priv->mfunc.master.slave_state[i].ib_cap_mask[port] =
2568                                                 ib_port_default_caps;
2569                                 }
2570                         }
2571
2572                         if (mlx4_is_mfunc(dev))
2573                                 dev->caps.port_ib_mtu[port] = IB_MTU_2048;
2574                         else
2575                                 dev->caps.port_ib_mtu[port] = IB_MTU_4096;
2576
2577                         err = mlx4_SET_PORT(dev, port, mlx4_is_master(dev) ?
2578                                             dev->caps.pkey_table_len[port] : -1);
2579                         if (err) {
2580                                 mlx4_err(dev, "Failed to set port %d, aborting\n",
2581                                          port);
2582                                 goto err_default_countes_free;
2583                         }
2584                 }
2585         }
2586
2587         return 0;
2588
2589 err_default_countes_free:
2590         mlx4_cleanup_default_counters(dev);
2591
2592 err_counters_table_free:
2593         if (!mlx4_is_slave(dev))
2594                 mlx4_cleanup_counters_table(dev);
2595
2596 err_qp_table_free:
2597         mlx4_cleanup_qp_table(dev);
2598
2599 err_srq_table_free:
2600         mlx4_cleanup_srq_table(dev);
2601
2602 err_cq_table_free:
2603         mlx4_cleanup_cq_table(dev);
2604
2605 err_cmd_poll:
2606         mlx4_cmd_use_polling(dev);
2607
2608 err_eq_table_free:
2609         mlx4_cleanup_eq_table(dev);
2610
2611 err_mcg_table_free:
2612         if (!mlx4_is_slave(dev))
2613                 mlx4_cleanup_mcg_table(dev);
2614
2615 err_mr_table_free:
2616         mlx4_cleanup_mr_table(dev);
2617
2618 err_xrcd_table_free:
2619         mlx4_cleanup_xrcd_table(dev);
2620
2621 err_pd_table_free:
2622         mlx4_cleanup_pd_table(dev);
2623
2624 err_kar_unmap:
2625         iounmap(priv->kar);
2626
2627 err_uar_free:
2628         mlx4_uar_free(dev, &priv->driver_uar);
2629
2630 err_uar_table_free:
2631         mlx4_cleanup_uar_table(dev);
2632         return err;
2633 }
2634
2635 static int mlx4_init_affinity_hint(struct mlx4_dev *dev, int port, int eqn)
2636 {
2637         int requested_cpu = 0;
2638         struct mlx4_priv *priv = mlx4_priv(dev);
2639         struct mlx4_eq *eq;
2640         int off = 0;
2641         int i;
2642
2643         if (eqn > dev->caps.num_comp_vectors)
2644                 return -EINVAL;
2645
2646         for (i = 1; i < port; i++)
2647                 off += mlx4_get_eqs_per_port(dev, i);
2648
2649         requested_cpu = eqn - off - !!(eqn > MLX4_EQ_ASYNC);
2650
2651         /* Meaning EQs are shared, and this call comes from the second port */
2652         if (requested_cpu < 0)
2653                 return 0;
2654
2655         eq = &priv->eq_table.eq[eqn];
2656
2657         if (!zalloc_cpumask_var(&eq->affinity_mask, GFP_KERNEL))
2658                 return -ENOMEM;
2659
2660         cpumask_set_cpu(requested_cpu, eq->affinity_mask);
2661
2662         return 0;
2663 }
2664
2665 static void mlx4_enable_msi_x(struct mlx4_dev *dev)
2666 {
2667         struct mlx4_priv *priv = mlx4_priv(dev);
2668         struct msix_entry *entries;
2669         int i;
2670         int port = 0;
2671
2672         if (msi_x) {
2673                 int nreq = dev->caps.num_ports * num_online_cpus() + 1;
2674
2675                 nreq = min_t(int, dev->caps.num_eqs - dev->caps.reserved_eqs,
2676                              nreq);
2677                 if (nreq > MAX_MSIX)
2678                         nreq = MAX_MSIX;
2679
2680                 entries = kcalloc(nreq, sizeof *entries, GFP_KERNEL);
2681                 if (!entries)
2682                         goto no_msi;
2683
2684                 for (i = 0; i < nreq; ++i)
2685                         entries[i].entry = i;
2686
2687                 nreq = pci_enable_msix_range(dev->persist->pdev, entries, 2,
2688                                              nreq);
2689
2690                 if (nreq < 0 || nreq < MLX4_EQ_ASYNC) {
2691                         kfree(entries);
2692                         goto no_msi;
2693                 }
2694                 /* 1 is reserved for events (asyncrounous EQ) */
2695                 dev->caps.num_comp_vectors = nreq - 1;
2696
2697                 priv->eq_table.eq[MLX4_EQ_ASYNC].irq = entries[0].vector;
2698                 bitmap_zero(priv->eq_table.eq[MLX4_EQ_ASYNC].actv_ports.ports,
2699                             dev->caps.num_ports);
2700
2701                 for (i = 0; i < dev->caps.num_comp_vectors + 1; i++) {
2702                         if (i == MLX4_EQ_ASYNC)
2703                                 continue;
2704
2705                         priv->eq_table.eq[i].irq =
2706                                 entries[i + 1 - !!(i > MLX4_EQ_ASYNC)].vector;
2707
2708                         if (MLX4_IS_LEGACY_EQ_MODE(dev->caps)) {
2709                                 bitmap_fill(priv->eq_table.eq[i].actv_ports.ports,
2710                                             dev->caps.num_ports);
2711                                 /* We don't set affinity hint when there
2712                                  * aren't enough EQs
2713                                  */
2714                         } else {
2715                                 set_bit(port,
2716                                         priv->eq_table.eq[i].actv_ports.ports);
2717                                 if (mlx4_init_affinity_hint(dev, port + 1, i))
2718                                         mlx4_warn(dev, "Couldn't init hint cpumask for EQ %d\n",
2719                                                   i);
2720                         }
2721                         /* We divide the Eqs evenly between the two ports.
2722                          * (dev->caps.num_comp_vectors / dev->caps.num_ports)
2723                          * refers to the number of Eqs per port
2724                          * (i.e eqs_per_port). Theoretically, we would like to
2725                          * write something like (i + 1) % eqs_per_port == 0.
2726                          * However, since there's an asynchronous Eq, we have
2727                          * to skip over it by comparing this condition to
2728                          * !!((i + 1) > MLX4_EQ_ASYNC).
2729                          */
2730                         if ((dev->caps.num_comp_vectors > dev->caps.num_ports) &&
2731                             ((i + 1) %
2732                              (dev->caps.num_comp_vectors / dev->caps.num_ports)) ==
2733                             !!((i + 1) > MLX4_EQ_ASYNC))
2734                                 /* If dev->caps.num_comp_vectors < dev->caps.num_ports,
2735                                  * everything is shared anyway.
2736                                  */
2737                                 port++;
2738                 }
2739
2740                 dev->flags |= MLX4_FLAG_MSI_X;
2741
2742                 kfree(entries);
2743                 return;
2744         }
2745
2746 no_msi:
2747         dev->caps.num_comp_vectors = 1;
2748
2749         BUG_ON(MLX4_EQ_ASYNC >= 2);
2750         for (i = 0; i < 2; ++i) {
2751                 priv->eq_table.eq[i].irq = dev->persist->pdev->irq;
2752                 if (i != MLX4_EQ_ASYNC) {
2753                         bitmap_fill(priv->eq_table.eq[i].actv_ports.ports,
2754                                     dev->caps.num_ports);
2755                 }
2756         }
2757 }
2758
2759 static int mlx4_init_port_info(struct mlx4_dev *dev, int port)
2760 {
2761         struct mlx4_port_info *info = &mlx4_priv(dev)->port[port];
2762         int err = 0;
2763
2764         info->dev = dev;
2765         info->port = port;
2766         if (!mlx4_is_slave(dev)) {
2767                 mlx4_init_mac_table(dev, &info->mac_table);
2768                 mlx4_init_vlan_table(dev, &info->vlan_table);
2769                 mlx4_init_roce_gid_table(dev, &info->gid_table);
2770                 info->base_qpn = mlx4_get_base_qpn(dev, port);
2771         }
2772
2773         sprintf(info->dev_name, "mlx4_port%d", port);
2774         info->port_attr.attr.name = info->dev_name;
2775         if (mlx4_is_mfunc(dev))
2776                 info->port_attr.attr.mode = S_IRUGO;
2777         else {
2778                 info->port_attr.attr.mode = S_IRUGO | S_IWUSR;
2779                 info->port_attr.store     = set_port_type;
2780         }
2781         info->port_attr.show      = show_port_type;
2782         sysfs_attr_init(&info->port_attr.attr);
2783
2784         err = device_create_file(&dev->persist->pdev->dev, &info->port_attr);
2785         if (err) {
2786                 mlx4_err(dev, "Failed to create file for port %d\n", port);
2787                 info->port = -1;
2788         }
2789
2790         sprintf(info->dev_mtu_name, "mlx4_port%d_mtu", port);
2791         info->port_mtu_attr.attr.name = info->dev_mtu_name;
2792         if (mlx4_is_mfunc(dev))
2793                 info->port_mtu_attr.attr.mode = S_IRUGO;
2794         else {
2795                 info->port_mtu_attr.attr.mode = S_IRUGO | S_IWUSR;
2796                 info->port_mtu_attr.store     = set_port_ib_mtu;
2797         }
2798         info->port_mtu_attr.show      = show_port_ib_mtu;
2799         sysfs_attr_init(&info->port_mtu_attr.attr);
2800
2801         err = device_create_file(&dev->persist->pdev->dev,
2802                                  &info->port_mtu_attr);
2803         if (err) {
2804                 mlx4_err(dev, "Failed to create mtu file for port %d\n", port);
2805                 device_remove_file(&info->dev->persist->pdev->dev,
2806                                    &info->port_attr);
2807                 info->port = -1;
2808         }
2809
2810         return err;
2811 }
2812
2813 static void mlx4_cleanup_port_info(struct mlx4_port_info *info)
2814 {
2815         if (info->port < 0)
2816                 return;
2817
2818         device_remove_file(&info->dev->persist->pdev->dev, &info->port_attr);
2819         device_remove_file(&info->dev->persist->pdev->dev,
2820                            &info->port_mtu_attr);
2821 #ifdef CONFIG_RFS_ACCEL
2822         free_irq_cpu_rmap(info->rmap);
2823         info->rmap = NULL;
2824 #endif
2825 }
2826
2827 static int mlx4_init_steering(struct mlx4_dev *dev)
2828 {
2829         struct mlx4_priv *priv = mlx4_priv(dev);
2830         int num_entries = dev->caps.num_ports;
2831         int i, j;
2832
2833         priv->steer = kzalloc(sizeof(struct mlx4_steer) * num_entries, GFP_KERNEL);
2834         if (!priv->steer)
2835                 return -ENOMEM;
2836
2837         for (i = 0; i < num_entries; i++)
2838                 for (j = 0; j < MLX4_NUM_STEERS; j++) {
2839                         INIT_LIST_HEAD(&priv->steer[i].promisc_qps[j]);
2840                         INIT_LIST_HEAD(&priv->steer[i].steer_entries[j]);
2841                 }
2842         return 0;
2843 }
2844
2845 static void mlx4_clear_steering(struct mlx4_dev *dev)
2846 {
2847         struct mlx4_priv *priv = mlx4_priv(dev);
2848         struct mlx4_steer_index *entry, *tmp_entry;
2849         struct mlx4_promisc_qp *pqp, *tmp_pqp;
2850         int num_entries = dev->caps.num_ports;
2851         int i, j;
2852
2853         for (i = 0; i < num_entries; i++) {
2854                 for (j = 0; j < MLX4_NUM_STEERS; j++) {
2855                         list_for_each_entry_safe(pqp, tmp_pqp,
2856                                                  &priv->steer[i].promisc_qps[j],
2857                                                  list) {
2858                                 list_del(&pqp->list);
2859                                 kfree(pqp);
2860                         }
2861                         list_for_each_entry_safe(entry, tmp_entry,
2862                                                  &priv->steer[i].steer_entries[j],
2863                                                  list) {
2864                                 list_del(&entry->list);
2865                                 list_for_each_entry_safe(pqp, tmp_pqp,
2866                                                          &entry->duplicates,
2867                                                          list) {
2868                                         list_del(&pqp->list);
2869                                         kfree(pqp);
2870                                 }
2871                                 kfree(entry);
2872                         }
2873                 }
2874         }
2875         kfree(priv->steer);
2876 }
2877
2878 static int extended_func_num(struct pci_dev *pdev)
2879 {
2880         return PCI_SLOT(pdev->devfn) * 8 + PCI_FUNC(pdev->devfn);
2881 }
2882
2883 #define MLX4_OWNER_BASE 0x8069c
2884 #define MLX4_OWNER_SIZE 4
2885
2886 static int mlx4_get_ownership(struct mlx4_dev *dev)
2887 {
2888         void __iomem *owner;
2889         u32 ret;
2890
2891         if (pci_channel_offline(dev->persist->pdev))
2892                 return -EIO;
2893
2894         owner = ioremap(pci_resource_start(dev->persist->pdev, 0) +
2895                         MLX4_OWNER_BASE,
2896                         MLX4_OWNER_SIZE);
2897         if (!owner) {
2898                 mlx4_err(dev, "Failed to obtain ownership bit\n");
2899                 return -ENOMEM;
2900         }
2901
2902         ret = readl(owner);
2903         iounmap(owner);
2904         return (int) !!ret;
2905 }
2906
2907 static void mlx4_free_ownership(struct mlx4_dev *dev)
2908 {
2909         void __iomem *owner;
2910
2911         if (pci_channel_offline(dev->persist->pdev))
2912                 return;
2913
2914         owner = ioremap(pci_resource_start(dev->persist->pdev, 0) +
2915                         MLX4_OWNER_BASE,
2916                         MLX4_OWNER_SIZE);
2917         if (!owner) {
2918                 mlx4_err(dev, "Failed to obtain ownership bit\n");
2919                 return;
2920         }
2921         writel(0, owner);
2922         msleep(1000);
2923         iounmap(owner);
2924 }
2925
2926 #define SRIOV_VALID_STATE(flags) (!!((flags) & MLX4_FLAG_SRIOV) ==\
2927                                   !!((flags) & MLX4_FLAG_MASTER))
2928
2929 static u64 mlx4_enable_sriov(struct mlx4_dev *dev, struct pci_dev *pdev,
2930                              u8 total_vfs, int existing_vfs, int reset_flow)
2931 {
2932         u64 dev_flags = dev->flags;
2933         int err = 0;
2934         int fw_enabled_sriov_vfs = min(pci_sriov_get_totalvfs(pdev),
2935                                         MLX4_MAX_NUM_VF);
2936
2937         if (reset_flow) {
2938                 dev->dev_vfs = kcalloc(total_vfs, sizeof(*dev->dev_vfs),
2939                                        GFP_KERNEL);
2940                 if (!dev->dev_vfs)
2941                         goto free_mem;
2942                 return dev_flags;
2943         }
2944
2945         atomic_inc(&pf_loading);
2946         if (dev->flags &  MLX4_FLAG_SRIOV) {
2947                 if (existing_vfs != total_vfs) {
2948                         mlx4_err(dev, "SR-IOV was already enabled, but with num_vfs (%d) different than requested (%d)\n",
2949                                  existing_vfs, total_vfs);
2950                         total_vfs = existing_vfs;
2951                 }
2952         }
2953
2954         dev->dev_vfs = kzalloc(total_vfs * sizeof(*dev->dev_vfs), GFP_KERNEL);
2955         if (NULL == dev->dev_vfs) {
2956                 mlx4_err(dev, "Failed to allocate memory for VFs\n");
2957                 goto disable_sriov;
2958         }
2959
2960         if (!(dev->flags &  MLX4_FLAG_SRIOV)) {
2961                 if (total_vfs > fw_enabled_sriov_vfs) {
2962                         mlx4_err(dev, "requested vfs (%d) > available vfs (%d). Continuing without SR_IOV\n",
2963                                  total_vfs, fw_enabled_sriov_vfs);
2964                         err = -ENOMEM;
2965                         goto disable_sriov;
2966                 }
2967                 mlx4_warn(dev, "Enabling SR-IOV with %d VFs\n", total_vfs);
2968                 err = pci_enable_sriov(pdev, total_vfs);
2969         }
2970         if (err) {
2971                 mlx4_err(dev, "Failed to enable SR-IOV, continuing without SR-IOV (err = %d)\n",
2972                          err);
2973                 goto disable_sriov;
2974         } else {
2975                 mlx4_warn(dev, "Running in master mode\n");
2976                 dev_flags |= MLX4_FLAG_SRIOV |
2977                         MLX4_FLAG_MASTER;
2978                 dev_flags &= ~MLX4_FLAG_SLAVE;
2979                 dev->persist->num_vfs = total_vfs;
2980         }
2981         return dev_flags;
2982
2983 disable_sriov:
2984         atomic_dec(&pf_loading);
2985 free_mem:
2986         dev->persist->num_vfs = 0;
2987         kfree(dev->dev_vfs);
2988         dev->dev_vfs = NULL;
2989         return dev_flags & ~MLX4_FLAG_MASTER;
2990 }
2991
2992 enum {
2993         MLX4_DEV_CAP_CHECK_NUM_VFS_ABOVE_64 = -1,
2994 };
2995
2996 static int mlx4_check_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap,
2997                               int *nvfs)
2998 {
2999         int requested_vfs = nvfs[0] + nvfs[1] + nvfs[2];
3000         /* Checking for 64 VFs as a limitation of CX2 */
3001         if (!(dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_80_VFS) &&
3002             requested_vfs >= 64) {
3003                 mlx4_err(dev, "Requested %d VFs, but FW does not support more than 64\n",
3004                          requested_vfs);
3005                 return MLX4_DEV_CAP_CHECK_NUM_VFS_ABOVE_64;
3006         }
3007         return 0;
3008 }
3009
3010 static int mlx4_load_one(struct pci_dev *pdev, int pci_dev_data,
3011                          int total_vfs, int *nvfs, struct mlx4_priv *priv,
3012                          int reset_flow)
3013 {
3014         struct mlx4_dev *dev;
3015         unsigned sum = 0;
3016         int err;
3017         int port;
3018         int i;
3019         struct mlx4_dev_cap *dev_cap = NULL;
3020         int existing_vfs = 0;
3021
3022         dev = &priv->dev;
3023
3024         INIT_LIST_HEAD(&priv->ctx_list);
3025         spin_lock_init(&priv->ctx_lock);
3026
3027         mutex_init(&priv->port_mutex);
3028         mutex_init(&priv->bond_mutex);
3029
3030         INIT_LIST_HEAD(&priv->pgdir_list);
3031         mutex_init(&priv->pgdir_mutex);
3032
3033         INIT_LIST_HEAD(&priv->bf_list);
3034         mutex_init(&priv->bf_mutex);
3035
3036         dev->rev_id = pdev->revision;
3037         dev->numa_node = dev_to_node(&pdev->dev);
3038
3039         /* Detect if this device is a virtual function */
3040         if (pci_dev_data & MLX4_PCI_DEV_IS_VF) {
3041                 mlx4_warn(dev, "Detected virtual function - running in slave mode\n");
3042                 dev->flags |= MLX4_FLAG_SLAVE;
3043         } else {
3044                 /* We reset the device and enable SRIOV only for physical
3045                  * devices.  Try to claim ownership on the device;
3046                  * if already taken, skip -- do not allow multiple PFs */
3047                 err = mlx4_get_ownership(dev);
3048                 if (err) {
3049                         if (err < 0)
3050                                 return err;
3051                         else {
3052                                 mlx4_warn(dev, "Multiple PFs not yet supported - Skipping PF\n");
3053                                 return -EINVAL;
3054                         }
3055                 }
3056
3057                 atomic_set(&priv->opreq_count, 0);
3058                 INIT_WORK(&priv->opreq_task, mlx4_opreq_action);
3059
3060                 /*
3061                  * Now reset the HCA before we touch the PCI capabilities or
3062                  * attempt a firmware command, since a boot ROM may have left
3063                  * the HCA in an undefined state.
3064                  */
3065                 err = mlx4_reset(dev);
3066                 if (err) {
3067                         mlx4_err(dev, "Failed to reset HCA, aborting\n");
3068                         goto err_sriov;
3069                 }
3070
3071                 if (total_vfs) {
3072                         dev->flags = MLX4_FLAG_MASTER;
3073                         existing_vfs = pci_num_vf(pdev);
3074                         if (existing_vfs)
3075                                 dev->flags |= MLX4_FLAG_SRIOV;
3076                         dev->persist->num_vfs = total_vfs;
3077                 }
3078         }
3079
3080         /* on load remove any previous indication of internal error,
3081          * device is up.
3082          */
3083         dev->persist->state = MLX4_DEVICE_STATE_UP;
3084
3085 slave_start:
3086         err = mlx4_cmd_init(dev);
3087         if (err) {
3088                 mlx4_err(dev, "Failed to init command interface, aborting\n");
3089                 goto err_sriov;
3090         }
3091
3092         /* In slave functions, the communication channel must be initialized
3093          * before posting commands. Also, init num_slaves before calling
3094          * mlx4_init_hca */
3095         if (mlx4_is_mfunc(dev)) {
3096                 if (mlx4_is_master(dev)) {
3097                         dev->num_slaves = MLX4_MAX_NUM_SLAVES;
3098
3099                 } else {
3100                         dev->num_slaves = 0;
3101                         err = mlx4_multi_func_init(dev);
3102                         if (err) {
3103                                 mlx4_err(dev, "Failed to init slave mfunc interface, aborting\n");
3104                                 goto err_cmd;
3105                         }
3106                 }
3107         }
3108
3109         err = mlx4_init_fw(dev);
3110         if (err) {
3111                 mlx4_err(dev, "Failed to init fw, aborting.\n");
3112                 goto err_mfunc;
3113         }
3114
3115         if (mlx4_is_master(dev)) {
3116                 /* when we hit the goto slave_start below, dev_cap already initialized */
3117                 if (!dev_cap) {
3118                         dev_cap = kzalloc(sizeof(*dev_cap), GFP_KERNEL);
3119
3120                         if (!dev_cap) {
3121                                 err = -ENOMEM;
3122                                 goto err_fw;
3123                         }
3124
3125                         err = mlx4_QUERY_DEV_CAP(dev, dev_cap);
3126                         if (err) {
3127                                 mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
3128                                 goto err_fw;
3129                         }
3130
3131                         if (mlx4_check_dev_cap(dev, dev_cap, nvfs))
3132                                 goto err_fw;
3133
3134                         if (!(dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_SYS_EQS)) {
3135                                 u64 dev_flags = mlx4_enable_sriov(dev, pdev,
3136                                                                   total_vfs,
3137                                                                   existing_vfs,
3138                                                                   reset_flow);
3139
3140                                 mlx4_close_fw(dev);
3141                                 mlx4_cmd_cleanup(dev, MLX4_CMD_CLEANUP_ALL);
3142                                 dev->flags = dev_flags;
3143                                 if (!SRIOV_VALID_STATE(dev->flags)) {
3144                                         mlx4_err(dev, "Invalid SRIOV state\n");
3145                                         goto err_sriov;
3146                                 }
3147                                 err = mlx4_reset(dev);
3148                                 if (err) {
3149                                         mlx4_err(dev, "Failed to reset HCA, aborting.\n");
3150                                         goto err_sriov;
3151                                 }
3152                                 goto slave_start;
3153                         }
3154                 } else {
3155                         /* Legacy mode FW requires SRIOV to be enabled before
3156                          * doing QUERY_DEV_CAP, since max_eq's value is different if
3157                          * SRIOV is enabled.
3158                          */
3159                         memset(dev_cap, 0, sizeof(*dev_cap));
3160                         err = mlx4_QUERY_DEV_CAP(dev, dev_cap);
3161                         if (err) {
3162                                 mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
3163                                 goto err_fw;
3164                         }
3165
3166                         if (mlx4_check_dev_cap(dev, dev_cap, nvfs))
3167                                 goto err_fw;
3168                 }
3169         }
3170
3171         err = mlx4_init_hca(dev);
3172         if (err) {
3173                 if (err == -EACCES) {
3174                         /* Not primary Physical function
3175                          * Running in slave mode */
3176                         mlx4_cmd_cleanup(dev, MLX4_CMD_CLEANUP_ALL);
3177                         /* We're not a PF */
3178                         if (dev->flags & MLX4_FLAG_SRIOV) {
3179                                 if (!existing_vfs)
3180                                         pci_disable_sriov(pdev);
3181                                 if (mlx4_is_master(dev) && !reset_flow)
3182                                         atomic_dec(&pf_loading);
3183                                 dev->flags &= ~MLX4_FLAG_SRIOV;
3184                         }
3185                         if (!mlx4_is_slave(dev))
3186                                 mlx4_free_ownership(dev);
3187                         dev->flags |= MLX4_FLAG_SLAVE;
3188                         dev->flags &= ~MLX4_FLAG_MASTER;
3189                         goto slave_start;
3190                 } else
3191                         goto err_fw;
3192         }
3193
3194         if (mlx4_is_master(dev) && (dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_SYS_EQS)) {
3195                 u64 dev_flags = mlx4_enable_sriov(dev, pdev, total_vfs,
3196                                                   existing_vfs, reset_flow);
3197
3198                 if ((dev->flags ^ dev_flags) & (MLX4_FLAG_MASTER | MLX4_FLAG_SLAVE)) {
3199                         mlx4_cmd_cleanup(dev, MLX4_CMD_CLEANUP_VHCR);
3200                         dev->flags = dev_flags;
3201                         err = mlx4_cmd_init(dev);
3202                         if (err) {
3203                                 /* Only VHCR is cleaned up, so could still
3204                                  * send FW commands
3205                                  */
3206                                 mlx4_err(dev, "Failed to init VHCR command interface, aborting\n");
3207                                 goto err_close;
3208                         }
3209                 } else {
3210                         dev->flags = dev_flags;
3211                 }
3212
3213                 if (!SRIOV_VALID_STATE(dev->flags)) {
3214                         mlx4_err(dev, "Invalid SRIOV state\n");
3215                         goto err_close;
3216                 }
3217         }
3218
3219         /* check if the device is functioning at its maximum possible speed.
3220          * No return code for this call, just warn the user in case of PCI
3221          * express device capabilities are under-satisfied by the bus.
3222          */
3223         if (!mlx4_is_slave(dev))
3224                 mlx4_check_pcie_caps(dev);
3225
3226         /* In master functions, the communication channel must be initialized
3227          * after obtaining its address from fw */
3228         if (mlx4_is_master(dev)) {
3229                 if (dev->caps.num_ports < 2 &&
3230                     num_vfs_argc > 1) {
3231                         err = -EINVAL;
3232                         mlx4_err(dev,
3233                                  "Error: Trying to configure VFs on port 2, but HCA has only %d physical ports\n",
3234                                  dev->caps.num_ports);
3235                         goto err_close;
3236                 }
3237                 memcpy(dev->persist->nvfs, nvfs, sizeof(dev->persist->nvfs));
3238
3239                 for (i = 0;
3240                      i < sizeof(dev->persist->nvfs)/
3241                      sizeof(dev->persist->nvfs[0]); i++) {
3242                         unsigned j;
3243
3244                         for (j = 0; j < dev->persist->nvfs[i]; ++sum, ++j) {
3245                                 dev->dev_vfs[sum].min_port = i < 2 ? i + 1 : 1;
3246                                 dev->dev_vfs[sum].n_ports = i < 2 ? 1 :
3247                                         dev->caps.num_ports;
3248                         }
3249                 }
3250
3251                 /* In master functions, the communication channel
3252                  * must be initialized after obtaining its address from fw
3253                  */
3254                 err = mlx4_multi_func_init(dev);
3255                 if (err) {
3256                         mlx4_err(dev, "Failed to init master mfunc interface, aborting.\n");
3257                         goto err_close;
3258                 }
3259         }
3260
3261         err = mlx4_alloc_eq_table(dev);
3262         if (err)
3263                 goto err_master_mfunc;
3264
3265         bitmap_zero(priv->msix_ctl.pool_bm, MAX_MSIX);
3266         mutex_init(&priv->msix_ctl.pool_lock);
3267
3268         mlx4_enable_msi_x(dev);
3269         if ((mlx4_is_mfunc(dev)) &&
3270             !(dev->flags & MLX4_FLAG_MSI_X)) {
3271                 err = -ENOSYS;
3272                 mlx4_err(dev, "INTx is not supported in multi-function mode, aborting\n");
3273                 goto err_free_eq;
3274         }
3275
3276         if (!mlx4_is_slave(dev)) {
3277                 err = mlx4_init_steering(dev);
3278                 if (err)
3279                         goto err_disable_msix;
3280         }
3281
3282         err = mlx4_setup_hca(dev);
3283         if (err == -EBUSY && (dev->flags & MLX4_FLAG_MSI_X) &&
3284             !mlx4_is_mfunc(dev)) {
3285                 dev->flags &= ~MLX4_FLAG_MSI_X;
3286                 dev->caps.num_comp_vectors = 1;
3287                 pci_disable_msix(pdev);
3288                 err = mlx4_setup_hca(dev);
3289         }
3290
3291         if (err)
3292                 goto err_steer;
3293
3294         mlx4_init_quotas(dev);
3295         /* When PF resources are ready arm its comm channel to enable
3296          * getting commands
3297          */
3298         if (mlx4_is_master(dev)) {
3299                 err = mlx4_ARM_COMM_CHANNEL(dev);
3300                 if (err) {
3301                         mlx4_err(dev, " Failed to arm comm channel eq: %x\n",
3302                                  err);
3303                         goto err_steer;
3304                 }
3305         }
3306
3307         for (port = 1; port <= dev->caps.num_ports; port++) {
3308                 err = mlx4_init_port_info(dev, port);
3309                 if (err)
3310                         goto err_port;
3311         }
3312
3313         priv->v2p.port1 = 1;
3314         priv->v2p.port2 = 2;
3315
3316         err = mlx4_register_device(dev);
3317         if (err)
3318                 goto err_port;
3319
3320         mlx4_request_modules(dev);
3321
3322         mlx4_sense_init(dev);
3323         mlx4_start_sense(dev);
3324
3325         priv->removed = 0;
3326
3327         if (mlx4_is_master(dev) && dev->persist->num_vfs && !reset_flow)
3328                 atomic_dec(&pf_loading);
3329
3330         kfree(dev_cap);
3331         return 0;
3332
3333 err_port:
3334         for (--port; port >= 1; --port)
3335                 mlx4_cleanup_port_info(&priv->port[port]);
3336
3337         mlx4_cleanup_default_counters(dev);
3338         if (!mlx4_is_slave(dev))
3339                 mlx4_cleanup_counters_table(dev);
3340         mlx4_cleanup_qp_table(dev);
3341         mlx4_cleanup_srq_table(dev);
3342         mlx4_cleanup_cq_table(dev);
3343         mlx4_cmd_use_polling(dev);
3344         mlx4_cleanup_eq_table(dev);
3345         mlx4_cleanup_mcg_table(dev);
3346         mlx4_cleanup_mr_table(dev);
3347         mlx4_cleanup_xrcd_table(dev);
3348         mlx4_cleanup_pd_table(dev);
3349         mlx4_cleanup_uar_table(dev);
3350
3351 err_steer:
3352         if (!mlx4_is_slave(dev))
3353                 mlx4_clear_steering(dev);
3354
3355 err_disable_msix:
3356         if (dev->flags & MLX4_FLAG_MSI_X)
3357                 pci_disable_msix(pdev);
3358
3359 err_free_eq:
3360         mlx4_free_eq_table(dev);
3361
3362 err_master_mfunc:
3363         if (mlx4_is_master(dev)) {
3364                 mlx4_free_resource_tracker(dev, RES_TR_FREE_STRUCTS_ONLY);
3365                 mlx4_multi_func_cleanup(dev);
3366         }
3367
3368         if (mlx4_is_slave(dev)) {
3369                 kfree(dev->caps.qp0_qkey);
3370                 kfree(dev->caps.qp0_tunnel);
3371                 kfree(dev->caps.qp0_proxy);
3372                 kfree(dev->caps.qp1_tunnel);
3373                 kfree(dev->caps.qp1_proxy);
3374         }
3375
3376 err_close:
3377         mlx4_close_hca(dev);
3378
3379 err_fw:
3380         mlx4_close_fw(dev);
3381
3382 err_mfunc:
3383         if (mlx4_is_slave(dev))
3384                 mlx4_multi_func_cleanup(dev);
3385
3386 err_cmd:
3387         mlx4_cmd_cleanup(dev, MLX4_CMD_CLEANUP_ALL);
3388
3389 err_sriov:
3390         if (dev->flags & MLX4_FLAG_SRIOV && !existing_vfs) {
3391                 pci_disable_sriov(pdev);
3392                 dev->flags &= ~MLX4_FLAG_SRIOV;
3393         }
3394
3395         if (mlx4_is_master(dev) && dev->persist->num_vfs && !reset_flow)
3396                 atomic_dec(&pf_loading);
3397
3398         kfree(priv->dev.dev_vfs);
3399
3400         if (!mlx4_is_slave(dev))
3401                 mlx4_free_ownership(dev);
3402
3403         kfree(dev_cap);
3404         return err;
3405 }
3406
3407 static int __mlx4_init_one(struct pci_dev *pdev, int pci_dev_data,
3408                            struct mlx4_priv *priv)
3409 {
3410         int err;
3411         int nvfs[MLX4_MAX_PORTS + 1] = {0, 0, 0};
3412         int prb_vf[MLX4_MAX_PORTS + 1] = {0, 0, 0};
3413         const int param_map[MLX4_MAX_PORTS + 1][MLX4_MAX_PORTS + 1] = {
3414                 {2, 0, 0}, {0, 1, 2}, {0, 1, 2} };
3415         unsigned total_vfs = 0;
3416         unsigned int i;
3417
3418         pr_info(DRV_NAME ": Initializing %s\n", pci_name(pdev));
3419
3420         err = pci_enable_device(pdev);
3421         if (err) {
3422                 dev_err(&pdev->dev, "Cannot enable PCI device, aborting\n");
3423                 return err;
3424         }
3425
3426         /* Due to requirement that all VFs and the PF are *guaranteed* 2 MACS
3427          * per port, we must limit the number of VFs to 63 (since their are
3428          * 128 MACs)
3429          */
3430         for (i = 0; i < sizeof(nvfs)/sizeof(nvfs[0]) && i < num_vfs_argc;
3431              total_vfs += nvfs[param_map[num_vfs_argc - 1][i]], i++) {
3432                 nvfs[param_map[num_vfs_argc - 1][i]] = num_vfs[i];
3433                 if (nvfs[i] < 0) {
3434                         dev_err(&pdev->dev, "num_vfs module parameter cannot be negative\n");
3435                         err = -EINVAL;
3436                         goto err_disable_pdev;
3437                 }
3438         }
3439         for (i = 0; i < sizeof(prb_vf)/sizeof(prb_vf[0]) && i < probe_vfs_argc;
3440              i++) {
3441                 prb_vf[param_map[probe_vfs_argc - 1][i]] = probe_vf[i];
3442                 if (prb_vf[i] < 0 || prb_vf[i] > nvfs[i]) {
3443                         dev_err(&pdev->dev, "probe_vf module parameter cannot be negative or greater than num_vfs\n");
3444                         err = -EINVAL;
3445                         goto err_disable_pdev;
3446                 }
3447         }
3448         if (total_vfs > MLX4_MAX_NUM_VF) {
3449                 dev_err(&pdev->dev,
3450                         "Requested more VF's (%d) than allowed by hw (%d)\n",
3451                         total_vfs, MLX4_MAX_NUM_VF);
3452                 err = -EINVAL;
3453                 goto err_disable_pdev;
3454         }
3455
3456         for (i = 0; i < MLX4_MAX_PORTS; i++) {
3457                 if (nvfs[i] + nvfs[2] > MLX4_MAX_NUM_VF_P_PORT) {
3458                         dev_err(&pdev->dev,
3459                                 "Requested more VF's (%d) for port (%d) than allowed by driver (%d)\n",
3460                                 nvfs[i] + nvfs[2], i + 1,
3461                                 MLX4_MAX_NUM_VF_P_PORT);
3462                         err = -EINVAL;
3463                         goto err_disable_pdev;
3464                 }
3465         }
3466
3467         /* Check for BARs. */
3468         if (!(pci_dev_data & MLX4_PCI_DEV_IS_VF) &&
3469             !(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
3470                 dev_err(&pdev->dev, "Missing DCS, aborting (driver_data: 0x%x, pci_resource_flags(pdev, 0):0x%lx)\n",
3471                         pci_dev_data, pci_resource_flags(pdev, 0));
3472                 err = -ENODEV;
3473                 goto err_disable_pdev;
3474         }
3475         if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
3476                 dev_err(&pdev->dev, "Missing UAR, aborting\n");
3477                 err = -ENODEV;
3478                 goto err_disable_pdev;
3479         }
3480
3481         err = pci_request_regions(pdev, DRV_NAME);
3482         if (err) {
3483                 dev_err(&pdev->dev, "Couldn't get PCI resources, aborting\n");
3484                 goto err_disable_pdev;
3485         }
3486
3487         pci_set_master(pdev);
3488
3489         err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
3490         if (err) {
3491                 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask\n");
3492                 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
3493                 if (err) {
3494                         dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting\n");
3495                         goto err_release_regions;
3496                 }
3497         }
3498         err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
3499         if (err) {
3500                 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit consistent PCI DMA mask\n");
3501                 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
3502                 if (err) {
3503                         dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, aborting\n");
3504                         goto err_release_regions;
3505                 }
3506         }
3507
3508         /* Allow large DMA segments, up to the firmware limit of 1 GB */
3509         dma_set_max_seg_size(&pdev->dev, 1024 * 1024 * 1024);
3510         /* Detect if this device is a virtual function */
3511         if (pci_dev_data & MLX4_PCI_DEV_IS_VF) {
3512                 /* When acting as pf, we normally skip vfs unless explicitly
3513                  * requested to probe them.
3514                  */
3515                 if (total_vfs) {
3516                         unsigned vfs_offset = 0;
3517
3518                         for (i = 0; i < sizeof(nvfs)/sizeof(nvfs[0]) &&
3519                              vfs_offset + nvfs[i] < extended_func_num(pdev);
3520                              vfs_offset += nvfs[i], i++)
3521                                 ;
3522                         if (i == sizeof(nvfs)/sizeof(nvfs[0])) {
3523                                 err = -ENODEV;
3524                                 goto err_release_regions;
3525                         }
3526                         if ((extended_func_num(pdev) - vfs_offset)
3527                             > prb_vf[i]) {
3528                                 dev_warn(&pdev->dev, "Skipping virtual function:%d\n",
3529                                          extended_func_num(pdev));
3530                                 err = -ENODEV;
3531                                 goto err_release_regions;
3532                         }
3533                 }
3534         }
3535
3536         err = mlx4_catas_init(&priv->dev);
3537         if (err)
3538                 goto err_release_regions;
3539
3540         err = mlx4_load_one(pdev, pci_dev_data, total_vfs, nvfs, priv, 0);
3541         if (err)
3542                 goto err_catas;
3543
3544         return 0;
3545
3546 err_catas:
3547         mlx4_catas_end(&priv->dev);
3548
3549 err_release_regions:
3550         pci_release_regions(pdev);
3551
3552 err_disable_pdev:
3553         pci_disable_device(pdev);
3554         pci_set_drvdata(pdev, NULL);
3555         return err;
3556 }
3557
3558 static int mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
3559 {
3560         struct mlx4_priv *priv;
3561         struct mlx4_dev *dev;
3562         int ret;
3563
3564         printk_once(KERN_INFO "%s", mlx4_version);
3565
3566         priv = kzalloc(sizeof(*priv), GFP_KERNEL);
3567         if (!priv)
3568                 return -ENOMEM;
3569
3570         dev       = &priv->dev;
3571         dev->persist = kzalloc(sizeof(*dev->persist), GFP_KERNEL);
3572         if (!dev->persist) {
3573                 kfree(priv);
3574                 return -ENOMEM;
3575         }
3576         dev->persist->pdev = pdev;
3577         dev->persist->dev = dev;
3578         pci_set_drvdata(pdev, dev->persist);
3579         priv->pci_dev_data = id->driver_data;
3580         mutex_init(&dev->persist->device_state_mutex);
3581         mutex_init(&dev->persist->interface_state_mutex);
3582
3583         ret =  __mlx4_init_one(pdev, id->driver_data, priv);
3584         if (ret) {
3585                 kfree(dev->persist);
3586                 kfree(priv);
3587         } else {
3588                 pci_save_state(pdev);
3589         }
3590
3591         return ret;
3592 }
3593
3594 static void mlx4_clean_dev(struct mlx4_dev *dev)
3595 {
3596         struct mlx4_dev_persistent *persist = dev->persist;
3597         struct mlx4_priv *priv = mlx4_priv(dev);
3598         unsigned long   flags = (dev->flags & RESET_PERSIST_MASK_FLAGS);
3599
3600         memset(priv, 0, sizeof(*priv));
3601         priv->dev.persist = persist;
3602         priv->dev.flags = flags;
3603 }
3604
3605 static void mlx4_unload_one(struct pci_dev *pdev)
3606 {
3607         struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev);
3608         struct mlx4_dev  *dev  = persist->dev;
3609         struct mlx4_priv *priv = mlx4_priv(dev);
3610         int               pci_dev_data;
3611         int p, i;
3612
3613         if (priv->removed)
3614                 return;
3615
3616         /* saving current ports type for further use */
3617         for (i = 0; i < dev->caps.num_ports; i++) {
3618                 dev->persist->curr_port_type[i] = dev->caps.port_type[i + 1];
3619                 dev->persist->curr_port_poss_type[i] = dev->caps.
3620                                                        possible_type[i + 1];
3621         }
3622
3623         pci_dev_data = priv->pci_dev_data;
3624
3625         mlx4_stop_sense(dev);
3626         mlx4_unregister_device(dev);
3627
3628         for (p = 1; p <= dev->caps.num_ports; p++) {
3629                 mlx4_cleanup_port_info(&priv->port[p]);
3630                 mlx4_CLOSE_PORT(dev, p);
3631         }
3632
3633         if (mlx4_is_master(dev))
3634                 mlx4_free_resource_tracker(dev,
3635                                            RES_TR_FREE_SLAVES_ONLY);
3636
3637         mlx4_cleanup_default_counters(dev);
3638         if (!mlx4_is_slave(dev))
3639                 mlx4_cleanup_counters_table(dev);
3640         mlx4_cleanup_qp_table(dev);
3641         mlx4_cleanup_srq_table(dev);
3642         mlx4_cleanup_cq_table(dev);
3643         mlx4_cmd_use_polling(dev);
3644         mlx4_cleanup_eq_table(dev);
3645         mlx4_cleanup_mcg_table(dev);
3646         mlx4_cleanup_mr_table(dev);
3647         mlx4_cleanup_xrcd_table(dev);
3648         mlx4_cleanup_pd_table(dev);
3649
3650         if (mlx4_is_master(dev))
3651                 mlx4_free_resource_tracker(dev,
3652                                            RES_TR_FREE_STRUCTS_ONLY);
3653
3654         iounmap(priv->kar);
3655         mlx4_uar_free(dev, &priv->driver_uar);
3656         mlx4_cleanup_uar_table(dev);
3657         if (!mlx4_is_slave(dev))
3658                 mlx4_clear_steering(dev);
3659         mlx4_free_eq_table(dev);
3660         if (mlx4_is_master(dev))
3661                 mlx4_multi_func_cleanup(dev);
3662         mlx4_close_hca(dev);
3663         mlx4_close_fw(dev);
3664         if (mlx4_is_slave(dev))
3665                 mlx4_multi_func_cleanup(dev);
3666         mlx4_cmd_cleanup(dev, MLX4_CMD_CLEANUP_ALL);
3667
3668         if (dev->flags & MLX4_FLAG_MSI_X)
3669                 pci_disable_msix(pdev);
3670
3671         if (!mlx4_is_slave(dev))
3672                 mlx4_free_ownership(dev);
3673
3674         kfree(dev->caps.qp0_qkey);
3675         kfree(dev->caps.qp0_tunnel);
3676         kfree(dev->caps.qp0_proxy);
3677         kfree(dev->caps.qp1_tunnel);
3678         kfree(dev->caps.qp1_proxy);
3679         kfree(dev->dev_vfs);
3680
3681         mlx4_clean_dev(dev);
3682         priv->pci_dev_data = pci_dev_data;
3683         priv->removed = 1;
3684 }
3685
3686 static void mlx4_remove_one(struct pci_dev *pdev)
3687 {
3688         struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev);
3689         struct mlx4_dev  *dev  = persist->dev;
3690         struct mlx4_priv *priv = mlx4_priv(dev);
3691         int active_vfs = 0;
3692
3693         mutex_lock(&persist->interface_state_mutex);
3694         persist->interface_state |= MLX4_INTERFACE_STATE_DELETION;
3695         mutex_unlock(&persist->interface_state_mutex);
3696
3697         /* Disabling SR-IOV is not allowed while there are active vf's */
3698         if (mlx4_is_master(dev) && dev->flags & MLX4_FLAG_SRIOV) {
3699                 active_vfs = mlx4_how_many_lives_vf(dev);
3700                 if (active_vfs) {
3701                         pr_warn("Removing PF when there are active VF's !!\n");
3702                         pr_warn("Will not disable SR-IOV.\n");
3703                 }
3704         }
3705
3706         /* device marked to be under deletion running now without the lock
3707          * letting other tasks to be terminated
3708          */
3709         if (persist->interface_state & MLX4_INTERFACE_STATE_UP)
3710                 mlx4_unload_one(pdev);
3711         else
3712                 mlx4_info(dev, "%s: interface is down\n", __func__);
3713         mlx4_catas_end(dev);
3714         if (dev->flags & MLX4_FLAG_SRIOV && !active_vfs) {
3715                 mlx4_warn(dev, "Disabling SR-IOV\n");
3716                 pci_disable_sriov(pdev);
3717         }
3718
3719         pci_release_regions(pdev);
3720         pci_disable_device(pdev);
3721         kfree(dev->persist);
3722         kfree(priv);
3723         pci_set_drvdata(pdev, NULL);
3724 }
3725
3726 static int restore_current_port_types(struct mlx4_dev *dev,
3727                                       enum mlx4_port_type *types,
3728                                       enum mlx4_port_type *poss_types)
3729 {
3730         struct mlx4_priv *priv = mlx4_priv(dev);
3731         int err, i;
3732
3733         mlx4_stop_sense(dev);
3734
3735         mutex_lock(&priv->port_mutex);
3736         for (i = 0; i < dev->caps.num_ports; i++)
3737                 dev->caps.possible_type[i + 1] = poss_types[i];
3738         err = mlx4_change_port_types(dev, types);
3739         mlx4_start_sense(dev);
3740         mutex_unlock(&priv->port_mutex);
3741
3742         return err;
3743 }
3744
3745 int mlx4_restart_one(struct pci_dev *pdev)
3746 {
3747         struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev);
3748         struct mlx4_dev  *dev  = persist->dev;
3749         struct mlx4_priv *priv = mlx4_priv(dev);
3750         int nvfs[MLX4_MAX_PORTS + 1] = {0, 0, 0};
3751         int pci_dev_data, err, total_vfs;
3752
3753         pci_dev_data = priv->pci_dev_data;
3754         total_vfs = dev->persist->num_vfs;
3755         memcpy(nvfs, dev->persist->nvfs, sizeof(dev->persist->nvfs));
3756
3757         mlx4_unload_one(pdev);
3758         err = mlx4_load_one(pdev, pci_dev_data, total_vfs, nvfs, priv, 1);
3759         if (err) {
3760                 mlx4_err(dev, "%s: ERROR: mlx4_load_one failed, pci_name=%s, err=%d\n",
3761                          __func__, pci_name(pdev), err);
3762                 return err;
3763         }
3764
3765         err = restore_current_port_types(dev, dev->persist->curr_port_type,
3766                                          dev->persist->curr_port_poss_type);
3767         if (err)
3768                 mlx4_err(dev, "could not restore original port types (%d)\n",
3769                          err);
3770
3771         return err;
3772 }
3773
3774 static const struct pci_device_id mlx4_pci_table[] = {
3775         /* MT25408 "Hermon" SDR */
3776         { PCI_VDEVICE(MELLANOX, 0x6340), MLX4_PCI_DEV_FORCE_SENSE_PORT },
3777         /* MT25408 "Hermon" DDR */
3778         { PCI_VDEVICE(MELLANOX, 0x634a), MLX4_PCI_DEV_FORCE_SENSE_PORT },
3779         /* MT25408 "Hermon" QDR */
3780         { PCI_VDEVICE(MELLANOX, 0x6354), MLX4_PCI_DEV_FORCE_SENSE_PORT },
3781         /* MT25408 "Hermon" DDR PCIe gen2 */
3782         { PCI_VDEVICE(MELLANOX, 0x6732), MLX4_PCI_DEV_FORCE_SENSE_PORT },
3783         /* MT25408 "Hermon" QDR PCIe gen2 */
3784         { PCI_VDEVICE(MELLANOX, 0x673c), MLX4_PCI_DEV_FORCE_SENSE_PORT },
3785         /* MT25408 "Hermon" EN 10GigE */
3786         { PCI_VDEVICE(MELLANOX, 0x6368), MLX4_PCI_DEV_FORCE_SENSE_PORT },
3787         /* MT25408 "Hermon" EN 10GigE PCIe gen2 */
3788         { PCI_VDEVICE(MELLANOX, 0x6750), MLX4_PCI_DEV_FORCE_SENSE_PORT },
3789         /* MT25458 ConnectX EN 10GBASE-T 10GigE */
3790         { PCI_VDEVICE(MELLANOX, 0x6372), MLX4_PCI_DEV_FORCE_SENSE_PORT },
3791         /* MT25458 ConnectX EN 10GBASE-T+Gen2 10GigE */
3792         { PCI_VDEVICE(MELLANOX, 0x675a), MLX4_PCI_DEV_FORCE_SENSE_PORT },
3793         /* MT26468 ConnectX EN 10GigE PCIe gen2*/
3794         { PCI_VDEVICE(MELLANOX, 0x6764), MLX4_PCI_DEV_FORCE_SENSE_PORT },
3795         /* MT26438 ConnectX EN 40GigE PCIe gen2 5GT/s */
3796         { PCI_VDEVICE(MELLANOX, 0x6746), MLX4_PCI_DEV_FORCE_SENSE_PORT },
3797         /* MT26478 ConnectX2 40GigE PCIe gen2 */
3798         { PCI_VDEVICE(MELLANOX, 0x676e), MLX4_PCI_DEV_FORCE_SENSE_PORT },
3799         /* MT25400 Family [ConnectX-2 Virtual Function] */
3800         { PCI_VDEVICE(MELLANOX, 0x1002), MLX4_PCI_DEV_IS_VF },
3801         /* MT27500 Family [ConnectX-3] */
3802         { PCI_VDEVICE(MELLANOX, 0x1003), 0 },
3803         /* MT27500 Family [ConnectX-3 Virtual Function] */
3804         { PCI_VDEVICE(MELLANOX, 0x1004), MLX4_PCI_DEV_IS_VF },
3805         { PCI_VDEVICE(MELLANOX, 0x1005), 0 }, /* MT27510 Family */
3806         { PCI_VDEVICE(MELLANOX, 0x1006), 0 }, /* MT27511 Family */
3807         { PCI_VDEVICE(MELLANOX, 0x1007), 0 }, /* MT27520 Family */
3808         { PCI_VDEVICE(MELLANOX, 0x1008), 0 }, /* MT27521 Family */
3809         { PCI_VDEVICE(MELLANOX, 0x1009), 0 }, /* MT27530 Family */
3810         { PCI_VDEVICE(MELLANOX, 0x100a), 0 }, /* MT27531 Family */
3811         { PCI_VDEVICE(MELLANOX, 0x100b), 0 }, /* MT27540 Family */
3812         { PCI_VDEVICE(MELLANOX, 0x100c), 0 }, /* MT27541 Family */
3813         { PCI_VDEVICE(MELLANOX, 0x100d), 0 }, /* MT27550 Family */
3814         { PCI_VDEVICE(MELLANOX, 0x100e), 0 }, /* MT27551 Family */
3815         { PCI_VDEVICE(MELLANOX, 0x100f), 0 }, /* MT27560 Family */
3816         { PCI_VDEVICE(MELLANOX, 0x1010), 0 }, /* MT27561 Family */
3817         { 0, }
3818 };
3819
3820 MODULE_DEVICE_TABLE(pci, mlx4_pci_table);
3821
3822 static pci_ers_result_t mlx4_pci_err_detected(struct pci_dev *pdev,
3823                                               pci_channel_state_t state)
3824 {
3825         struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev);
3826
3827         mlx4_err(persist->dev, "mlx4_pci_err_detected was called\n");
3828         mlx4_enter_error_state(persist);
3829
3830         mutex_lock(&persist->interface_state_mutex);
3831         if (persist->interface_state & MLX4_INTERFACE_STATE_UP)
3832                 mlx4_unload_one(pdev);
3833
3834         mutex_unlock(&persist->interface_state_mutex);
3835         if (state == pci_channel_io_perm_failure)
3836                 return PCI_ERS_RESULT_DISCONNECT;
3837
3838         pci_disable_device(pdev);
3839         return PCI_ERS_RESULT_NEED_RESET;
3840 }
3841
3842 static pci_ers_result_t mlx4_pci_slot_reset(struct pci_dev *pdev)
3843 {
3844         struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev);
3845         struct mlx4_dev  *dev  = persist->dev;
3846         struct mlx4_priv *priv = mlx4_priv(dev);
3847         int               ret;
3848         int nvfs[MLX4_MAX_PORTS + 1] = {0, 0, 0};
3849         int total_vfs;
3850
3851         mlx4_err(dev, "mlx4_pci_slot_reset was called\n");
3852         ret = pci_enable_device(pdev);
3853         if (ret) {
3854                 mlx4_err(dev, "Can not re-enable device, ret=%d\n", ret);
3855                 return PCI_ERS_RESULT_DISCONNECT;
3856         }
3857
3858         pci_set_master(pdev);
3859         pci_restore_state(pdev);
3860         pci_save_state(pdev);
3861
3862         total_vfs = dev->persist->num_vfs;
3863         memcpy(nvfs, dev->persist->nvfs, sizeof(dev->persist->nvfs));
3864
3865         mutex_lock(&persist->interface_state_mutex);
3866         if (!(persist->interface_state & MLX4_INTERFACE_STATE_UP)) {
3867                 ret = mlx4_load_one(pdev, priv->pci_dev_data, total_vfs, nvfs,
3868                                     priv, 1);
3869                 if (ret) {
3870                         mlx4_err(dev, "%s: mlx4_load_one failed, ret=%d\n",
3871                                  __func__,  ret);
3872                         goto end;
3873                 }
3874
3875                 ret = restore_current_port_types(dev, dev->persist->
3876                                                  curr_port_type, dev->persist->
3877                                                  curr_port_poss_type);
3878                 if (ret)
3879                         mlx4_err(dev, "could not restore original port types (%d)\n", ret);
3880         }
3881 end:
3882         mutex_unlock(&persist->interface_state_mutex);
3883
3884         return ret ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
3885 }
3886
3887 static void mlx4_shutdown(struct pci_dev *pdev)
3888 {
3889         struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev);
3890
3891         mlx4_info(persist->dev, "mlx4_shutdown was called\n");
3892         mutex_lock(&persist->interface_state_mutex);
3893         if (persist->interface_state & MLX4_INTERFACE_STATE_UP)
3894                 mlx4_unload_one(pdev);
3895         mutex_unlock(&persist->interface_state_mutex);
3896 }
3897
3898 static const struct pci_error_handlers mlx4_err_handler = {
3899         .error_detected = mlx4_pci_err_detected,
3900         .slot_reset     = mlx4_pci_slot_reset,
3901 };
3902
3903 static struct pci_driver mlx4_driver = {
3904         .name           = DRV_NAME,
3905         .id_table       = mlx4_pci_table,
3906         .probe          = mlx4_init_one,
3907         .shutdown       = mlx4_shutdown,
3908         .remove         = mlx4_remove_one,
3909         .err_handler    = &mlx4_err_handler,
3910 };
3911
3912 static int __init mlx4_verify_params(void)
3913 {
3914         if ((log_num_mac < 0) || (log_num_mac > 7)) {
3915                 pr_warn("mlx4_core: bad num_mac: %d\n", log_num_mac);
3916                 return -1;
3917         }
3918
3919         if (log_num_vlan != 0)
3920                 pr_warn("mlx4_core: log_num_vlan - obsolete module param, using %d\n",
3921                         MLX4_LOG_NUM_VLANS);
3922
3923         if (use_prio != 0)
3924                 pr_warn("mlx4_core: use_prio - obsolete module param, ignored\n");
3925
3926         if ((log_mtts_per_seg < 1) || (log_mtts_per_seg > 7)) {
3927                 pr_warn("mlx4_core: bad log_mtts_per_seg: %d\n",
3928                         log_mtts_per_seg);
3929                 return -1;
3930         }
3931
3932         /* Check if module param for ports type has legal combination */
3933         if (port_type_array[0] == false && port_type_array[1] == true) {
3934                 pr_warn("Module parameter configuration ETH/IB is not supported. Switching to default configuration IB/IB\n");
3935                 port_type_array[0] = true;
3936         }
3937
3938         if (mlx4_log_num_mgm_entry_size < -7 ||
3939             (mlx4_log_num_mgm_entry_size > 0 &&
3940              (mlx4_log_num_mgm_entry_size < MLX4_MIN_MGM_LOG_ENTRY_SIZE ||
3941               mlx4_log_num_mgm_entry_size > MLX4_MAX_MGM_LOG_ENTRY_SIZE))) {
3942                 pr_warn("mlx4_core: mlx4_log_num_mgm_entry_size (%d) not in legal range (-7..0 or %d..%d)\n",
3943                         mlx4_log_num_mgm_entry_size,
3944                         MLX4_MIN_MGM_LOG_ENTRY_SIZE,
3945                         MLX4_MAX_MGM_LOG_ENTRY_SIZE);
3946                 return -1;
3947         }
3948
3949         return 0;
3950 }
3951
3952 static int __init mlx4_init(void)
3953 {
3954         int ret;
3955
3956         if (mlx4_verify_params())
3957                 return -EINVAL;
3958
3959
3960         mlx4_wq = create_singlethread_workqueue("mlx4");
3961         if (!mlx4_wq)
3962                 return -ENOMEM;
3963
3964         ret = pci_register_driver(&mlx4_driver);
3965         if (ret < 0)
3966                 destroy_workqueue(mlx4_wq);
3967         return ret < 0 ? ret : 0;
3968 }
3969
3970 static void __exit mlx4_cleanup(void)
3971 {
3972         pci_unregister_driver(&mlx4_driver);
3973         destroy_workqueue(mlx4_wq);
3974 }
3975
3976 module_init(mlx4_init);
3977 module_exit(mlx4_cleanup);