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 #include <linux/etherdevice.h>
  46 #include <net/devlink.h>
  47
  48 #include <linux/mlx4/device.h>
  49 #include <linux/mlx4/doorbell.h>
  50
  51 #include "mlx4.h"
  52 #include "fw.h"
  53 #include "icm.h"
  54
  55 MODULE_AUTHOR("Roland Dreier");
  56 MODULE_DESCRIPTION("Mellanox ConnectX HCA low-level driver");
  57 MODULE_LICENSE("Dual BSD/GPL");
  58 MODULE_VERSION(DRV_VERSION);
  59
  60 struct workqueue_struct *mlx4_wq;
  61
  62 #ifdef CONFIG_MLX4_DEBUG
  63
  64 int mlx4_debug_level = 0;
  65 module_param_named(debug_level, mlx4_debug_level, int, 0644);
  66 MODULE_PARM_DESC(debug_level, "Enable debug tracing if > 0");
  67
  68 #endif /* CONFIG_MLX4_DEBUG */
  69
  70 #ifdef CONFIG_PCI_MSI
  71
  72 static int msi_x = 1;
  73 module_param(msi_x, int, 0444);
  74 MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero");
  75
  76 #else /* CONFIG_PCI_MSI */
  77
  78 #define msi_x (0)
  79
  80 #endif /* CONFIG_PCI_MSI */
  81
  82 static uint8_t num_vfs[3] = {0, 0, 0};
  83 static int num_vfs_argc;
  84 module_param_array(num_vfs, byte , &num_vfs_argc, 0444);
  85 MODULE_PARM_DESC(num_vfs, "enable #num_vfs functions if num_vfs > 0\n"
  86                           "num_vfs=port1,port2,port1+2");
  87
  88 static uint8_t probe_vf[3] = {0, 0, 0};
  89 static int probe_vfs_argc;
  90 module_param_array(probe_vf, byte, &probe_vfs_argc, 0444);
  91 MODULE_PARM_DESC(probe_vf, "number of vfs to probe by pf driver (num_vfs > 0)\n"
  92                            "probe_vf=port1,port2,port1+2");
  93
  94 static int mlx4_log_num_mgm_entry_size = MLX4_DEFAULT_MGM_LOG_ENTRY_SIZE;
  95 module_param_named(log_num_mgm_entry_size,
  96                         mlx4_log_num_mgm_entry_size, int, 0444);
  97 MODULE_PARM_DESC(log_num_mgm_entry_size, "log mgm size, that defines the num"
  98                                          " of qp per mcg, for example:"
  99                                          " 10 gives 248.range: 7 <="
 100                                          " log_num_mgm_entry_size <= 12."
 101                                          " To activate device managed"
 102                                          " flow steering when available, set to -1");
 103
 104 static bool enable_64b_cqe_eqe = true;
 105 module_param(enable_64b_cqe_eqe, bool, 0444);
 106 MODULE_PARM_DESC(enable_64b_cqe_eqe,
 107                  "Enable 64 byte CQEs/EQEs when the FW supports this (default: True)");
 108
 109 static bool enable_4k_uar;
 110 module_param(enable_4k_uar, bool, 0444);
 111 MODULE_PARM_DESC(enable_4k_uar,
 112                  "Enable using 4K UAR. Should not be enabled if have VFs which do not support 4K UARs (default: false)");
 113
 114 #define PF_CONTEXT_BEHAVIOUR_MASK       (MLX4_FUNC_CAP_64B_EQE_CQE | \
 115                                          MLX4_FUNC_CAP_EQE_CQE_STRIDE | \
 116                                          MLX4_FUNC_CAP_DMFS_A0_STATIC)
 117
 118 #define RESET_PERSIST_MASK_FLAGS        (MLX4_FLAG_SRIOV)
 119
 120 static char mlx4_version[] =
 121         DRV_NAME ": Mellanox ConnectX core driver v"
 122         DRV_VERSION "\n";
 123
 124 static struct mlx4_profile default_profile = {
 125         .num_qp         = 1 << 18,
 126         .num_srq        = 1 << 16,
 127         .rdmarc_per_qp  = 1 << 4,
 128         .num_cq         = 1 << 16,
 129         .num_mcg        = 1 << 13,
 130         .num_mpt        = 1 << 19,
 131         .num_mtt        = 1 << 20, /* It is really num mtt segements */
 132 };
 133
 134 static struct mlx4_profile low_mem_profile = {
 135         .num_qp         = 1 << 17,
 136         .num_srq        = 1 << 6,
 137         .rdmarc_per_qp  = 1 << 4,
 138         .num_cq         = 1 << 8,
 139         .num_mcg        = 1 << 8,
 140         .num_mpt        = 1 << 9,
 141         .num_mtt        = 1 << 7,
 142 };
 143
 144 static int log_num_mac = 7;
 145 module_param_named(log_num_mac, log_num_mac, int, 0444);
 146 MODULE_PARM_DESC(log_num_mac, "Log2 max number of MACs per ETH port (1-7)");
 147
 148 static int log_num_vlan;
 149 module_param_named(log_num_vlan, log_num_vlan, int, 0444);
 150 MODULE_PARM_DESC(log_num_vlan, "Log2 max number of VLANs per ETH port (0-7)");
 151 /* Log2 max number of VLANs per ETH port (0-7) */
 152 #define MLX4_LOG_NUM_VLANS 7
 153 #define MLX4_MIN_LOG_NUM_VLANS 0
 154 #define MLX4_MIN_LOG_NUM_MAC 1
 155
 156 static bool use_prio;
 157 module_param_named(use_prio, use_prio, bool, 0444);
 158 MODULE_PARM_DESC(use_prio, "Enable steering by VLAN priority on ETH ports (deprecated)");
 159
 160 int log_mtts_per_seg = ilog2(MLX4_MTT_ENTRY_PER_SEG);
 161 module_param_named(log_mtts_per_seg, log_mtts_per_seg, int, 0444);
 162 MODULE_PARM_DESC(log_mtts_per_seg, "Log2 number of MTT entries per segment (1-7)");
 163
 164 static int port_type_array[2] = {MLX4_PORT_TYPE_NONE, MLX4_PORT_TYPE_NONE};
 165 static int arr_argc = 2;
 166 module_param_array(port_type_array, int, &arr_argc, 0444);
 167 MODULE_PARM_DESC(port_type_array, "Array of port types: HW_DEFAULT (0) is default "
 168                                 "1 for IB, 2 for Ethernet");
 169
 170 struct mlx4_port_config {
 171         struct list_head list;
 172         enum mlx4_port_type port_type[MLX4_MAX_PORTS + 1];
 173         struct pci_dev *pdev;
 174 };
 175
 176 static atomic_t pf_loading = ATOMIC_INIT(0);
 177
 178 static inline void mlx4_set_num_reserved_uars(struct mlx4_dev *dev,
 179                                               struct mlx4_dev_cap *dev_cap)
 180 {
 181         /* The reserved_uars is calculated by system page size unit.
 182          * Therefore, adjustment is added when the uar page size is less
 183          * than the system page size
 184          */
 185         dev->caps.reserved_uars =
 186                 max_t(int,
 187                       mlx4_get_num_reserved_uar(dev),
 188                       dev_cap->reserved_uars /
 189                         (1 << (PAGE_SHIFT - dev->uar_page_shift)));
 190 }
 191
 192 int mlx4_check_port_params(struct mlx4_dev *dev,
 193                            enum mlx4_port_type *port_type)
 194 {
 195         int i;
 196
 197         if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP)) {
 198                 for (i = 0; i < dev->caps.num_ports - 1; i++) {
 199                         if (port_type[i] != port_type[i + 1]) {
 200                                 mlx4_err(dev, "Only same port types supported on this HCA, aborting\n");
 201                                 return -EINVAL;
 202                         }
 203                 }
 204         }
 205
 206         for (i = 0; i < dev->caps.num_ports; i++) {
 207                 if (!(port_type[i] & dev->caps.supported_type[i+1])) {
 208                         mlx4_err(dev, "Requested port type for port %d is not supported on this HCA\n",
 209                                  i + 1);
 210                         return -EINVAL;
 211                 }
 212         }
 213         return 0;
 214 }
 215
 216 static void mlx4_set_port_mask(struct mlx4_dev *dev)
 217 {
 218         int i;
 219
 220         for (i = 1; i <= dev->caps.num_ports; ++i)
 221                 dev->caps.port_mask[i] = dev->caps.port_type[i];
 222 }
 223
 224 enum {
 225         MLX4_QUERY_FUNC_NUM_SYS_EQS = 1 << 0,
 226 };
 227
 228 static int mlx4_query_func(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
 229 {
 230         int err = 0;
 231         struct mlx4_func func;
 232
 233         if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SYS_EQS) {
 234                 err = mlx4_QUERY_FUNC(dev, &func, 0);
 235                 if (err) {
 236                         mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
 237                         return err;
 238                 }
 239                 dev_cap->max_eqs = func.max_eq;
 240                 dev_cap->reserved_eqs = func.rsvd_eqs;
 241                 dev_cap->reserved_uars = func.rsvd_uars;
 242                 err |= MLX4_QUERY_FUNC_NUM_SYS_EQS;
 243         }
 244         return err;
 245 }
 246
 247 static void mlx4_enable_cqe_eqe_stride(struct mlx4_dev *dev)
 248 {
 249         struct mlx4_caps *dev_cap = &dev->caps;
 250
 251         /* FW not supporting or cancelled by user */
 252         if (!(dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_EQE_STRIDE) ||
 253             !(dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_CQE_STRIDE))
 254                 return;
 255
 256         /* Must have 64B CQE_EQE enabled by FW to use bigger stride
 257          * When FW has NCSI it may decide not to report 64B CQE/EQEs
 258          */
 259         if (!(dev_cap->flags & MLX4_DEV_CAP_FLAG_64B_EQE) ||
 260             !(dev_cap->flags & MLX4_DEV_CAP_FLAG_64B_CQE)) {
 261                 dev_cap->flags2 &= ~MLX4_DEV_CAP_FLAG2_CQE_STRIDE;
 262                 dev_cap->flags2 &= ~MLX4_DEV_CAP_FLAG2_EQE_STRIDE;
 263                 return;
 264         }
 265
 266         if (cache_line_size() == 128 || cache_line_size() == 256) {
 267                 mlx4_dbg(dev, "Enabling CQE stride cacheLine supported\n");
 268                 /* Changing the real data inside CQE size to 32B */
 269                 dev_cap->flags &= ~MLX4_DEV_CAP_FLAG_64B_CQE;
 270                 dev_cap->flags &= ~MLX4_DEV_CAP_FLAG_64B_EQE;
 271
 272                 if (mlx4_is_master(dev))
 273                         dev_cap->function_caps |= MLX4_FUNC_CAP_EQE_CQE_STRIDE;
 274         } else {
 275                 if (cache_line_size() != 32  && cache_line_size() != 64)
 276                         mlx4_dbg(dev, "Disabling CQE stride, cacheLine size unsupported\n");
 277                 dev_cap->flags2 &= ~MLX4_DEV_CAP_FLAG2_CQE_STRIDE;
 278                 dev_cap->flags2 &= ~MLX4_DEV_CAP_FLAG2_EQE_STRIDE;
 279         }
 280 }
 281
 282 static int _mlx4_dev_port(struct mlx4_dev *dev, int port,
 283                           struct mlx4_port_cap *port_cap)
 284 {
 285         dev->caps.vl_cap[port]      = port_cap->max_vl;
 286         dev->caps.ib_mtu_cap[port]          = port_cap->ib_mtu;
 287         dev->phys_caps.gid_phys_table_len[port]  = port_cap->max_gids;
 288         dev->phys_caps.pkey_phys_table_len[port] = port_cap->max_pkeys;
 289         /* set gid and pkey table operating lengths by default
 290          * to non-sriov values
 291          */
 292         dev->caps.gid_table_len[port]  = port_cap->max_gids;
 293         dev->caps.pkey_table_len[port] = port_cap->max_pkeys;
 294         dev->caps.port_width_cap[port] = port_cap->max_port_width;
 295         dev->caps.eth_mtu_cap[port]    = port_cap->eth_mtu;
 296         dev->caps.max_tc_eth           = port_cap->max_tc_eth;
 297         dev->caps.def_mac[port]        = port_cap->def_mac;
 298         dev->caps.supported_type[port] = port_cap->supported_port_types;
 299         dev->caps.suggested_type[port] = port_cap->suggested_type;
 300         dev->caps.default_sense[port] = port_cap->default_sense;
 301         dev->caps.trans_type[port]          = port_cap->trans_type;
 302         dev->caps.vendor_oui[port]     = port_cap->vendor_oui;
 303         dev->caps.wavelength[port]     = port_cap->wavelength;
 304         dev->caps.trans_code[port]     = port_cap->trans_code;
 305
 306         return 0;
 307 }
 308
 309 static int mlx4_dev_port(struct mlx4_dev *dev, int port,
 310                          struct mlx4_port_cap *port_cap)
 311 {
 312         int err = 0;
 313
 314         err = mlx4_QUERY_PORT(dev, port, port_cap);
 315
 316         if (err)
 317                 mlx4_err(dev, "QUERY_PORT command failed.\n");
 318
 319         return err;
 320 }
 321
 322 static inline void mlx4_enable_ignore_fcs(struct mlx4_dev *dev)
 323 {
 324         if (!(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_IGNORE_FCS))
 325                 return;
 326
 327         if (mlx4_is_mfunc(dev)) {
 328                 mlx4_dbg(dev, "SRIOV mode - Disabling Ignore FCS");
 329                 dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_IGNORE_FCS;
 330                 return;
 331         }
 332
 333         if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_FCS_KEEP)) {
 334                 mlx4_dbg(dev,
 335                          "Keep FCS is not supported - Disabling Ignore FCS");
 336                 dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_IGNORE_FCS;
 337                 return;
 338         }
 339 }
 340
 341 #define MLX4_A0_STEERING_TABLE_SIZE     256
 342 static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
 343 {
 344         int err;
 345         int i;
 346
 347         err = mlx4_QUERY_DEV_CAP(dev, dev_cap);
 348         if (err) {
 349                 mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting\n");
 350                 return err;
 351         }
 352         mlx4_dev_cap_dump(dev, dev_cap);
 353
 354         if (dev_cap->min_page_sz > PAGE_SIZE) {
 355                 mlx4_err(dev, "HCA minimum page size of %d bigger than kernel PAGE_SIZE of %ld, aborting\n",
 356                          dev_cap->min_page_sz, PAGE_SIZE);
 357                 return -ENODEV;
 358         }
 359         if (dev_cap->num_ports > MLX4_MAX_PORTS) {
 360                 mlx4_err(dev, "HCA has %d ports, but we only support %d, aborting\n",
 361                          dev_cap->num_ports, MLX4_MAX_PORTS);
 362                 return -ENODEV;
 363         }
 364
 365         if (dev_cap->uar_size > pci_resource_len(dev->persist->pdev, 2)) {
 366                 mlx4_err(dev, "HCA reported UAR size of 0x%x bigger than PCI resource 2 size of 0x%llx, aborting\n",
 367                          dev_cap->uar_size,
 368                          (unsigned long long)
 369                          pci_resource_len(dev->persist->pdev, 2));
 370                 return -ENODEV;
 371         }
 372
 373         dev->caps.num_ports          = dev_cap->num_ports;
 374         dev->caps.num_sys_eqs = dev_cap->num_sys_eqs;
 375         dev->phys_caps.num_phys_eqs = dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_SYS_EQS ?
 376                                       dev->caps.num_sys_eqs :
 377                                       MLX4_MAX_EQ_NUM;
 378         for (i = 1; i <= dev->caps.num_ports; ++i) {
 379                 err = _mlx4_dev_port(dev, i, dev_cap->port_cap + i);
 380                 if (err) {
 381                         mlx4_err(dev, "QUERY_PORT command failed, aborting\n");
 382                         return err;
 383                 }
 384         }
 385
 386         dev->caps.uar_page_size      = PAGE_SIZE;
 387         dev->caps.num_uars           = dev_cap->uar_size / PAGE_SIZE;
 388         dev->caps.local_ca_ack_delay = dev_cap->local_ca_ack_delay;
 389         dev->caps.bf_reg_size        = dev_cap->bf_reg_size;
 390         dev->caps.bf_regs_per_page   = dev_cap->bf_regs_per_page;
 391         dev->caps.max_sq_sg          = dev_cap->max_sq_sg;
 392         dev->caps.max_rq_sg          = dev_cap->max_rq_sg;
 393         dev->caps.max_wqes           = dev_cap->max_qp_sz;
 394         dev->caps.max_qp_init_rdma   = dev_cap->max_requester_per_qp;
 395         dev->caps.max_srq_wqes       = dev_cap->max_srq_sz;
 396         dev->caps.max_srq_sge        = dev_cap->max_rq_sg - 1;
 397         dev->caps.reserved_srqs      = dev_cap->reserved_srqs;
 398         dev->caps.max_sq_desc_sz     = dev_cap->max_sq_desc_sz;
 399         dev->caps.max_rq_desc_sz     = dev_cap->max_rq_desc_sz;
 400         /*
 401          * Subtract 1 from the limit because we need to allocate a
 402          * spare CQE so the HCA HW can tell the difference between an
 403          * empty CQ and a full CQ.
 404          */
 405         dev->caps.max_cqes           = dev_cap->max_cq_sz - 1;
 406         dev->caps.reserved_cqs       = dev_cap->reserved_cqs;
 407         dev->caps.reserved_eqs       = dev_cap->reserved_eqs;
 408         dev->caps.reserved_mtts      = dev_cap->reserved_mtts;
 409         dev->caps.reserved_mrws      = dev_cap->reserved_mrws;
 410
 411         dev->caps.reserved_pds       = dev_cap->reserved_pds;
 412         dev->caps.reserved_xrcds     = (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) ?
 413                                         dev_cap->reserved_xrcds : 0;
 414         dev->caps.max_xrcds          = (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) ?
 415                                         dev_cap->max_xrcds : 0;
 416         dev->caps.mtt_entry_sz       = dev_cap->mtt_entry_sz;
 417
 418         dev->caps.max_msg_sz         = dev_cap->max_msg_sz;
 419         dev->caps.page_size_cap      = ~(u32) (dev_cap->min_page_sz - 1);
 420         dev->caps.flags              = dev_cap->flags;
 421         dev->caps.flags2             = dev_cap->flags2;
 422         dev->caps.bmme_flags         = dev_cap->bmme_flags;
 423         dev->caps.reserved_lkey      = dev_cap->reserved_lkey;
 424         dev->caps.stat_rate_support  = dev_cap->stat_rate_support;
 425         dev->caps.max_gso_sz         = dev_cap->max_gso_sz;
 426         dev->caps.max_rss_tbl_sz     = dev_cap->max_rss_tbl_sz;
 427         dev->caps.wol_port[1]          = dev_cap->wol_port[1];
 428         dev->caps.wol_port[2]          = dev_cap->wol_port[2];
 429
 430         /* Save uar page shift */
 431         if (!mlx4_is_slave(dev)) {
 432                 /* Virtual PCI function needs to determine UAR page size from
 433                  * firmware. Only master PCI function can set the uar page size
 434                  */
 435                 if (enable_4k_uar)
 436                         dev->uar_page_shift = DEFAULT_UAR_PAGE_SHIFT;
 437                 else
 438                         dev->uar_page_shift = PAGE_SHIFT;
 439
 440                 mlx4_set_num_reserved_uars(dev, dev_cap);
 441         }
 442
 443         if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_PHV_EN) {
 444                 struct mlx4_init_hca_param hca_param;
 445
 446                 memset(&hca_param, 0, sizeof(hca_param));
 447                 err = mlx4_QUERY_HCA(dev, &hca_param);
 448                 /* Turn off PHV_EN flag in case phv_check_en is set.
 449                  * phv_check_en is a HW check that parse the packet and verify
 450                  * phv bit was reported correctly in the wqe. To allow QinQ
 451                  * PHV_EN flag should be set and phv_check_en must be cleared
 452                  * otherwise QinQ packets will be drop by the HW.
 453                  */
 454                 if (err || hca_param.phv_check_en)
 455                         dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_PHV_EN;
 456         }
 457
 458         /* Sense port always allowed on supported devices for ConnectX-1 and -2 */
 459         if (mlx4_priv(dev)->pci_dev_data & MLX4_PCI_DEV_FORCE_SENSE_PORT)
 460                 dev->caps.flags |= MLX4_DEV_CAP_FLAG_SENSE_SUPPORT;
 461         /* Don't do sense port on multifunction devices (for now at least) */
 462         if (mlx4_is_mfunc(dev))
 463                 dev->caps.flags &= ~MLX4_DEV_CAP_FLAG_SENSE_SUPPORT;
 464
 465         if (mlx4_low_memory_profile()) {
 466                 dev->caps.log_num_macs  = MLX4_MIN_LOG_NUM_MAC;
 467                 dev->caps.log_num_vlans = MLX4_MIN_LOG_NUM_VLANS;
 468         } else {
 469                 dev->caps.log_num_macs  = log_num_mac;
 470                 dev->caps.log_num_vlans = MLX4_LOG_NUM_VLANS;
 471         }
 472
 473         for (i = 1; i <= dev->caps.num_ports; ++i) {
 474                 dev->caps.port_type[i] = MLX4_PORT_TYPE_NONE;
 475                 if (dev->caps.supported_type[i]) {
 476                         /* if only ETH is supported - assign ETH */
 477                         if (dev->caps.supported_type[i] == MLX4_PORT_TYPE_ETH)
 478                                 dev->caps.port_type[i] = MLX4_PORT_TYPE_ETH;
 479                         /* if only IB is supported, assign IB */
 480                         else if (dev->caps.supported_type[i] ==
 481                                  MLX4_PORT_TYPE_IB)
 482                                 dev->caps.port_type[i] = MLX4_PORT_TYPE_IB;
 483                         else {
 484                                 /* if IB and ETH are supported, we set the port
 485                                  * type according to user selection of port type;
 486                                  * if user selected none, take the FW hint */
 487                                 if (port_type_array[i - 1] == MLX4_PORT_TYPE_NONE)
 488                                         dev->caps.port_type[i] = dev->caps.suggested_type[i] ?
 489                                                 MLX4_PORT_TYPE_ETH : MLX4_PORT_TYPE_IB;
 490                                 else
 491                                         dev->caps.port_type[i] = port_type_array[i - 1];
 492                         }
 493                 }
 494                 /*
 495                  * Link sensing is allowed on the port if 3 conditions are true:
 496                  * 1. Both protocols are supported on the port.
 497                  * 2. Different types are supported on the port
 498                  * 3. FW declared that it supports link sensing
 499                  */
 500                 mlx4_priv(dev)->sense.sense_allowed[i] =
 501                         ((dev->caps.supported_type[i] == MLX4_PORT_TYPE_AUTO) &&
 502                          (dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP) &&
 503                          (dev->caps.flags & MLX4_DEV_CAP_FLAG_SENSE_SUPPORT));
 504
 505                 /*
 506                  * If "default_sense" bit is set, we move the port to "AUTO" mode
 507                  * and perform sense_port FW command to try and set the correct
 508                  * port type from beginning
 509                  */
 510                 if (mlx4_priv(dev)->sense.sense_allowed[i] && dev->caps.default_sense[i]) {
 511                         enum mlx4_port_type sensed_port = MLX4_PORT_TYPE_NONE;
 512                         dev->caps.possible_type[i] = MLX4_PORT_TYPE_AUTO;
 513                         mlx4_SENSE_PORT(dev, i, &sensed_port);
 514                         if (sensed_port != MLX4_PORT_TYPE_NONE)
 515                                 dev->caps.port_type[i] = sensed_port;
 516                 } else {
 517                         dev->caps.possible_type[i] = dev->caps.port_type[i];
 518                 }
 519
 520                 if (dev->caps.log_num_macs > dev_cap->port_cap[i].log_max_macs) {
 521                         dev->caps.log_num_macs = dev_cap->port_cap[i].log_max_macs;
 522                         mlx4_warn(dev, "Requested number of MACs is too much for port %d, reducing to %d\n",
 523                                   i, 1 << dev->caps.log_num_macs);
 524                 }
 525                 if (dev->caps.log_num_vlans > dev_cap->port_cap[i].log_max_vlans) {
 526                         dev->caps.log_num_vlans = dev_cap->port_cap[i].log_max_vlans;
 527                         mlx4_warn(dev, "Requested number of VLANs is too much for port %d, reducing to %d\n",
 528                                   i, 1 << dev->caps.log_num_vlans);
 529                 }
 530         }
 531
 532         if (mlx4_is_master(dev) && (dev->caps.num_ports == 2) &&
 533             (port_type_array[0] == MLX4_PORT_TYPE_IB) &&
 534             (port_type_array[1] == MLX4_PORT_TYPE_ETH)) {
 535                 mlx4_warn(dev,
 536                           "Granular QoS per VF not supported with IB/Eth configuration\n");
 537                 dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_QOS_VPP;
 538         }
 539
 540         dev->caps.max_counters = dev_cap->max_counters;
 541
 542         dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW] = dev_cap->reserved_qps;
 543         dev->caps.reserved_qps_cnt[MLX4_QP_REGION_ETH_ADDR] =
 544                 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_ADDR] =
 545                 (1 << dev->caps.log_num_macs) *
 546                 (1 << dev->caps.log_num_vlans) *
 547                 dev->caps.num_ports;
 548         dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_EXCH] = MLX4_NUM_FEXCH;
 549
 550         if (dev_cap->dmfs_high_rate_qpn_base > 0 &&
 551             dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FS_EN)
 552                 dev->caps.dmfs_high_rate_qpn_base = dev_cap->dmfs_high_rate_qpn_base;
 553         else
 554                 dev->caps.dmfs_high_rate_qpn_base =
 555                         dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW];
 556
 557         if (dev_cap->dmfs_high_rate_qpn_range > 0 &&
 558             dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FS_EN) {
 559                 dev->caps.dmfs_high_rate_qpn_range = dev_cap->dmfs_high_rate_qpn_range;
 560                 dev->caps.dmfs_high_steer_mode = MLX4_STEERING_DMFS_A0_DEFAULT;
 561                 dev->caps.flags2 |= MLX4_DEV_CAP_FLAG2_FS_A0;
 562         } else {
 563                 dev->caps.dmfs_high_steer_mode = MLX4_STEERING_DMFS_A0_NOT_SUPPORTED;
 564                 dev->caps.dmfs_high_rate_qpn_base =
 565                         dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW];
 566                 dev->caps.dmfs_high_rate_qpn_range = MLX4_A0_STEERING_TABLE_SIZE;
 567         }
 568
 569         dev->caps.rl_caps = dev_cap->rl_caps;
 570
 571         dev->caps.reserved_qps_cnt[MLX4_QP_REGION_RSS_RAW_ETH] =
 572                 dev->caps.dmfs_high_rate_qpn_range;
 573
 574         dev->caps.reserved_qps = dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW] +
 575                 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_ETH_ADDR] +
 576                 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_ADDR] +
 577                 dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_EXCH];
 578
 579         dev->caps.sqp_demux = (mlx4_is_master(dev)) ? MLX4_MAX_NUM_SLAVES : 0;
 580
 581         if (!enable_64b_cqe_eqe && !mlx4_is_slave(dev)) {
 582                 if (dev_cap->flags &
 583                     (MLX4_DEV_CAP_FLAG_64B_CQE | MLX4_DEV_CAP_FLAG_64B_EQE)) {
 584                         mlx4_warn(dev, "64B EQEs/CQEs supported by the device but not enabled\n");
 585                         dev->caps.flags &= ~MLX4_DEV_CAP_FLAG_64B_CQE;
 586                         dev->caps.flags &= ~MLX4_DEV_CAP_FLAG_64B_EQE;
 587                 }
 588
 589                 if (dev_cap->flags2 &
 590                     (MLX4_DEV_CAP_FLAG2_CQE_STRIDE |
 591                      MLX4_DEV_CAP_FLAG2_EQE_STRIDE)) {
 592                         mlx4_warn(dev, "Disabling EQE/CQE stride per user request\n");
 593                         dev_cap->flags2 &= ~MLX4_DEV_CAP_FLAG2_CQE_STRIDE;
 594                         dev_cap->flags2 &= ~MLX4_DEV_CAP_FLAG2_EQE_STRIDE;
 595                 }
 596         }
 597
 598         if ((dev->caps.flags &
 599             (MLX4_DEV_CAP_FLAG_64B_CQE | MLX4_DEV_CAP_FLAG_64B_EQE)) &&
 600             mlx4_is_master(dev))
 601                 dev->caps.function_caps |= MLX4_FUNC_CAP_64B_EQE_CQE;
 602
 603         if (!mlx4_is_slave(dev)) {
 604                 mlx4_enable_cqe_eqe_stride(dev);
 605                 dev->caps.alloc_res_qp_mask =
 606                         (dev->caps.bf_reg_size ? MLX4_RESERVE_ETH_BF_QP : 0) |
 607                         MLX4_RESERVE_A0_QP;
 608
 609                 if (!(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETS_CFG) &&
 610                     dev->caps.flags & MLX4_DEV_CAP_FLAG_SET_ETH_SCHED) {
 611                         mlx4_warn(dev, "Old device ETS support detected\n");
 612                         mlx4_warn(dev, "Consider upgrading device FW.\n");
 613                         dev->caps.flags2 |= MLX4_DEV_CAP_FLAG2_ETS_CFG;
 614                 }
 615
 616         } else {
 617                 dev->caps.alloc_res_qp_mask = 0;
 618         }
 619
 620         mlx4_enable_ignore_fcs(dev);
 621
 622         return 0;
 623 }
 624
 625 static int mlx4_get_pcie_dev_link_caps(struct mlx4_dev *dev,
 626                                        enum pci_bus_speed *speed,
 627                                        enum pcie_link_width *width)
 628 {
 629         u32 lnkcap1, lnkcap2;
 630         int err1, err2;
 631
 632 #define  PCIE_MLW_CAP_SHIFT 4   /* start of MLW mask in link capabilities */
 633
 634         *speed = PCI_SPEED_UNKNOWN;
 635         *width = PCIE_LNK_WIDTH_UNKNOWN;
 636
 637         err1 = pcie_capability_read_dword(dev->persist->pdev, PCI_EXP_LNKCAP,
 638                                           &lnkcap1);
 639         err2 = pcie_capability_read_dword(dev->persist->pdev, PCI_EXP_LNKCAP2,
 640                                           &lnkcap2);
 641         if (!err2 && lnkcap2) { /* PCIe r3.0-compliant */
 642                 if (lnkcap2 & PCI_EXP_LNKCAP2_SLS_8_0GB)
 643                         *speed = PCIE_SPEED_8_0GT;
 644                 else if (lnkcap2 & PCI_EXP_LNKCAP2_SLS_5_0GB)
 645                         *speed = PCIE_SPEED_5_0GT;
 646                 else if (lnkcap2 & PCI_EXP_LNKCAP2_SLS_2_5GB)
 647                         *speed = PCIE_SPEED_2_5GT;
 648         }
 649         if (!err1) {
 650                 *width = (lnkcap1 & PCI_EXP_LNKCAP_MLW) >> PCIE_MLW_CAP_SHIFT;
 651                 if (!lnkcap2) { /* pre-r3.0 */
 652                         if (lnkcap1 & PCI_EXP_LNKCAP_SLS_5_0GB)
 653                                 *speed = PCIE_SPEED_5_0GT;
 654                         else if (lnkcap1 & PCI_EXP_LNKCAP_SLS_2_5GB)
 655                                 *speed = PCIE_SPEED_2_5GT;
 656                 }
 657         }
 658
 659         if (*speed == PCI_SPEED_UNKNOWN || *width == PCIE_LNK_WIDTH_UNKNOWN) {
 660                 return err1 ? err1 :
 661                         err2 ? err2 : -EINVAL;
 662         }
 663         return 0;
 664 }
 665
 666 static void mlx4_check_pcie_caps(struct mlx4_dev *dev)
 667 {
 668         enum pcie_link_width width, width_cap;
 669         enum pci_bus_speed speed, speed_cap;
 670         int err;
 671
 672 #define PCIE_SPEED_STR(speed) \
 673         (speed == PCIE_SPEED_8_0GT ? "8.0GT/s" : \
 674          speed == PCIE_SPEED_5_0GT ? "5.0GT/s" : \
 675          speed == PCIE_SPEED_2_5GT ? "2.5GT/s" : \
 676          "Unknown")
 677
 678         err = mlx4_get_pcie_dev_link_caps(dev, &speed_cap, &width_cap);
 679         if (err) {
 680                 mlx4_warn(dev,
 681                           "Unable to determine PCIe device BW capabilities\n");
 682                 return;
 683         }
 684
 685         err = pcie_get_minimum_link(dev->persist->pdev, &speed, &width);
 686         if (err || speed == PCI_SPEED_UNKNOWN ||
 687             width == PCIE_LNK_WIDTH_UNKNOWN) {
 688                 mlx4_warn(dev,
 689                           "Unable to determine PCI device chain minimum BW\n");
 690                 return;
 691         }
 692
 693         if (width != width_cap || speed != speed_cap)
 694                 mlx4_warn(dev,
 695                           "PCIe BW is different than device's capability\n");
 696
 697         mlx4_info(dev, "PCIe link speed is %s, device supports %s\n",
 698                   PCIE_SPEED_STR(speed), PCIE_SPEED_STR(speed_cap));
 699         mlx4_info(dev, "PCIe link width is x%d, device supports x%d\n",
 700                   width, width_cap);
 701         return;
 702 }
 703
 704 /*The function checks if there are live vf, return the num of them*/
 705 static int mlx4_how_many_lives_vf(struct mlx4_dev *dev)
 706 {
 707         struct mlx4_priv *priv = mlx4_priv(dev);
 708         struct mlx4_slave_state *s_state;
 709         int i;
 710         int ret = 0;
 711
 712         for (i = 1/*the ppf is 0*/; i < dev->num_slaves; ++i) {
 713                 s_state = &priv->mfunc.master.slave_state[i];
 714                 if (s_state->active && s_state->last_cmd !=
 715                     MLX4_COMM_CMD_RESET) {
 716                         mlx4_warn(dev, "%s: slave: %d is still active\n",
 717                                   __func__, i);
 718                         ret++;
 719                 }
 720         }
 721         return ret;
 722 }
 723
 724 int mlx4_get_parav_qkey(struct mlx4_dev *dev, u32 qpn, u32 *qkey)
 725 {
 726         u32 qk = MLX4_RESERVED_QKEY_BASE;
 727
 728         if (qpn >= dev->phys_caps.base_tunnel_sqpn + 8 * MLX4_MFUNC_MAX ||
 729             qpn < dev->phys_caps.base_proxy_sqpn)
 730                 return -EINVAL;
 731
 732         if (qpn >= dev->phys_caps.base_tunnel_sqpn)
 733                 /* tunnel qp */
 734                 qk += qpn - dev->phys_caps.base_tunnel_sqpn;
 735         else
 736                 qk += qpn - dev->phys_caps.base_proxy_sqpn;
 737         *qkey = qk;
 738         return 0;
 739 }
 740 EXPORT_SYMBOL(mlx4_get_parav_qkey);
 741
 742 void mlx4_sync_pkey_table(struct mlx4_dev *dev, int slave, int port, int i, int val)
 743 {
 744         struct mlx4_priv *priv = container_of(dev, struct mlx4_priv, dev);
 745
 746         if (!mlx4_is_master(dev))
 747                 return;
 748
 749         priv->virt2phys_pkey[slave][port - 1][i] = val;
 750 }
 751 EXPORT_SYMBOL(mlx4_sync_pkey_table);
 752
 753 void mlx4_put_slave_node_guid(struct mlx4_dev *dev, int slave, __be64 guid)
 754 {
 755         struct mlx4_priv *priv = container_of(dev, struct mlx4_priv, dev);
 756
 757         if (!mlx4_is_master(dev))
 758                 return;
 759
 760         priv->slave_node_guids[slave] = guid;
 761 }
 762 EXPORT_SYMBOL(mlx4_put_slave_node_guid);
 763
 764 __be64 mlx4_get_slave_node_guid(struct mlx4_dev *dev, int slave)
 765 {
 766         struct mlx4_priv *priv = container_of(dev, struct mlx4_priv, dev);
 767
 768         if (!mlx4_is_master(dev))
 769                 return 0;
 770
 771         return priv->slave_node_guids[slave];
 772 }
 773 EXPORT_SYMBOL(mlx4_get_slave_node_guid);
 774
 775 int mlx4_is_slave_active(struct mlx4_dev *dev, int slave)
 776 {
 777         struct mlx4_priv *priv = mlx4_priv(dev);
 778         struct mlx4_slave_state *s_slave;
 779
 780         if (!mlx4_is_master(dev))
 781                 return 0;
 782
 783         s_slave = &priv->mfunc.master.slave_state[slave];
 784         return !!s_slave->active;
 785 }
 786 EXPORT_SYMBOL(mlx4_is_slave_active);
 787
 788 void mlx4_handle_eth_header_mcast_prio(struct mlx4_net_trans_rule_hw_ctrl *ctrl,
 789                                        struct _rule_hw *eth_header)
 790 {
 791         if (is_multicast_ether_addr(eth_header->eth.dst_mac) ||
 792             is_broadcast_ether_addr(eth_header->eth.dst_mac)) {
 793                 struct mlx4_net_trans_rule_hw_eth *eth =
 794                         (struct mlx4_net_trans_rule_hw_eth *)eth_header;
 795                 struct _rule_hw *next_rule = (struct _rule_hw *)(eth + 1);
 796                 bool last_rule = next_rule->size == 0 && next_rule->id == 0 &&
 797                         next_rule->rsvd == 0;
 798
 799                 if (last_rule)
 800                         ctrl->prio = cpu_to_be16(MLX4_DOMAIN_NIC);
 801         }
 802 }
 803 EXPORT_SYMBOL(mlx4_handle_eth_header_mcast_prio);
 804
 805 static void slave_adjust_steering_mode(struct mlx4_dev *dev,
 806                                        struct mlx4_dev_cap *dev_cap,
 807                                        struct mlx4_init_hca_param *hca_param)
 808 {
 809         dev->caps.steering_mode = hca_param->steering_mode;
 810         if (dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED) {
 811                 dev->caps.num_qp_per_mgm = dev_cap->fs_max_num_qp_per_entry;
 812                 dev->caps.fs_log_max_ucast_qp_range_size =
 813                         dev_cap->fs_log_max_ucast_qp_range_size;
 814         } else
 815                 dev->caps.num_qp_per_mgm =
 816                         4 * ((1 << hca_param->log_mc_entry_sz)/16 - 2);
 817
 818         mlx4_dbg(dev, "Steering mode is: %s\n",
 819                  mlx4_steering_mode_str(dev->caps.steering_mode));
 820 }
 821
 822 static int mlx4_slave_cap(struct mlx4_dev *dev)
 823 {
 824         int                        err;
 825         u32                        page_size;
 826         struct mlx4_dev_cap        dev_cap;
 827         struct mlx4_func_cap       func_cap;
 828         struct mlx4_init_hca_param hca_param;
 829         u8                         i;
 830
 831         memset(&hca_param, 0, sizeof(hca_param));
 832         err = mlx4_QUERY_HCA(dev, &hca_param);
 833         if (err) {
 834                 mlx4_err(dev, "QUERY_HCA command failed, aborting\n");
 835                 return err;
 836         }
 837
 838         /* fail if the hca has an unknown global capability
 839          * at this time global_caps should be always zeroed
 840          */
 841         if (hca_param.global_caps) {
 842                 mlx4_err(dev, "Unknown hca global capabilities\n");
 843                 return -EINVAL;
 844         }
 845
 846         dev->caps.hca_core_clock = hca_param.hca_core_clock;
 847
 848         memset(&dev_cap, 0, sizeof(dev_cap));
 849         dev->caps.max_qp_dest_rdma = 1 << hca_param.log_rd_per_qp;
 850         err = mlx4_dev_cap(dev, &dev_cap);
 851         if (err) {
 852                 mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting\n");
 853                 return err;
 854         }
 855
 856         err = mlx4_QUERY_FW(dev);
 857         if (err)
 858                 mlx4_err(dev, "QUERY_FW command failed: could not get FW version\n");
 859
 860         page_size = ~dev->caps.page_size_cap + 1;
 861         mlx4_warn(dev, "HCA minimum page size:%d\n", page_size);
 862         if (page_size > PAGE_SIZE) {
 863                 mlx4_err(dev, "HCA minimum page size of %d bigger than kernel PAGE_SIZE of %ld, aborting\n",
 864                          page_size, PAGE_SIZE);
 865                 return -ENODEV;
 866         }
 867
 868         /* Set uar_page_shift for VF */
 869         dev->uar_page_shift = hca_param.uar_page_sz + 12;
 870
 871         /* Make sure the master uar page size is valid */
 872         if (dev->uar_page_shift > PAGE_SHIFT) {
 873                 mlx4_err(dev,
 874                          "Invalid configuration: uar page size is larger than system page size\n");
 875                 return  -ENODEV;
 876         }
 877
 878         /* Set reserved_uars based on the uar_page_shift */
 879         mlx4_set_num_reserved_uars(dev, &dev_cap);
 880
 881         /* Although uar page size in FW differs from system page size,
 882          * upper software layers (mlx4_ib, mlx4_en and part of mlx4_core)
 883          * still works with assumption that uar page size == system page size
 884          */
 885         dev->caps.uar_page_size = PAGE_SIZE;
 886
 887         memset(&func_cap, 0, sizeof(func_cap));
 888         err = mlx4_QUERY_FUNC_CAP(dev, 0, &func_cap);
 889         if (err) {
 890                 mlx4_err(dev, "QUERY_FUNC_CAP general command failed, aborting (%d)\n",
 891                          err);
 892                 return err;
 893         }
 894
 895         if ((func_cap.pf_context_behaviour | PF_CONTEXT_BEHAVIOUR_MASK) !=
 896             PF_CONTEXT_BEHAVIOUR_MASK) {
 897                 mlx4_err(dev, "Unknown pf context behaviour %x known flags %x\n",
 898                          func_cap.pf_context_behaviour, PF_CONTEXT_BEHAVIOUR_MASK);
 899                 return -EINVAL;
 900         }
 901
 902         dev->caps.num_ports             = func_cap.num_ports;
 903         dev->quotas.qp                  = func_cap.qp_quota;
 904         dev->quotas.srq                 = func_cap.srq_quota;
 905         dev->quotas.cq                  = func_cap.cq_quota;
 906         dev->quotas.mpt                 = func_cap.mpt_quota;
 907         dev->quotas.mtt                 = func_cap.mtt_quota;
 908         dev->caps.num_qps               = 1 << hca_param.log_num_qps;
 909         dev->caps.num_srqs              = 1 << hca_param.log_num_srqs;
 910         dev->caps.num_cqs               = 1 << hca_param.log_num_cqs;
 911         dev->caps.num_mpts              = 1 << hca_param.log_mpt_sz;
 912         dev->caps.num_eqs               = func_cap.max_eq;
 913         dev->caps.reserved_eqs          = func_cap.reserved_eq;
 914         dev->caps.reserved_lkey         = func_cap.reserved_lkey;
 915         dev->caps.num_pds               = MLX4_NUM_PDS;
 916         dev->caps.num_mgms              = 0;
 917         dev->caps.num_amgms             = 0;
 918
 919         if (dev->caps.num_ports > MLX4_MAX_PORTS) {
 920                 mlx4_err(dev, "HCA has %d ports, but we only support %d, aborting\n",
 921                          dev->caps.num_ports, MLX4_MAX_PORTS);
 922                 return -ENODEV;
 923         }
 924
 925         mlx4_replace_zero_macs(dev);
 926
 927         dev->caps.qp0_qkey = kcalloc(dev->caps.num_ports, sizeof(u32), GFP_KERNEL);
 928         dev->caps.qp0_tunnel = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL);
 929         dev->caps.qp0_proxy = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL);
 930         dev->caps.qp1_tunnel = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL);
 931         dev->caps.qp1_proxy = kcalloc(dev->caps.num_ports, sizeof (u32), GFP_KERNEL);
 932
 933         if (!dev->caps.qp0_tunnel || !dev->caps.qp0_proxy ||
 934             !dev->caps.qp1_tunnel || !dev->caps.qp1_proxy ||
 935             !dev->caps.qp0_qkey) {
 936                 err = -ENOMEM;
 937                 goto err_mem;
 938         }
 939
 940         for (i = 1; i <= dev->caps.num_ports; ++i) {
 941                 err = mlx4_QUERY_FUNC_CAP(dev, i, &func_cap);
 942                 if (err) {
 943                         mlx4_err(dev, "QUERY_FUNC_CAP port command failed for port %d, aborting (%d)\n",
 944                                  i, err);
 945                         goto err_mem;
 946                 }
 947                 dev->caps.qp0_qkey[i - 1] = func_cap.qp0_qkey;
 948                 dev->caps.qp0_tunnel[i - 1] = func_cap.qp0_tunnel_qpn;
 949                 dev->caps.qp0_proxy[i - 1] = func_cap.qp0_proxy_qpn;
 950                 dev->caps.qp1_tunnel[i - 1] = func_cap.qp1_tunnel_qpn;
 951                 dev->caps.qp1_proxy[i - 1] = func_cap.qp1_proxy_qpn;
 952                 dev->caps.port_mask[i] = dev->caps.port_type[i];
 953                 dev->caps.phys_port_id[i] = func_cap.phys_port_id;
 954                 err = mlx4_get_slave_pkey_gid_tbl_len(dev, i,
 955                                                       &dev->caps.gid_table_len[i],
 956                                                       &dev->caps.pkey_table_len[i]);
 957                 if (err)
 958                         goto err_mem;
 959         }
 960
 961         if (dev->caps.uar_page_size * (dev->caps.num_uars -
 962                                        dev->caps.reserved_uars) >
 963                                        pci_resource_len(dev->persist->pdev,
 964                                                         2)) {
 965                 mlx4_err(dev, "HCA reported UAR region size of 0x%x bigger than PCI resource 2 size of 0x%llx, aborting\n",
 966                          dev->caps.uar_page_size * dev->caps.num_uars,
 967                          (unsigned long long)
 968                          pci_resource_len(dev->persist->pdev, 2));
 969                 err = -ENOMEM;
 970                 goto err_mem;
 971         }
 972
 973         if (hca_param.dev_cap_enabled & MLX4_DEV_CAP_64B_EQE_ENABLED) {
 974                 dev->caps.eqe_size   = 64;
 975                 dev->caps.eqe_factor = 1;
 976         } else {
 977                 dev->caps.eqe_size   = 32;
 978                 dev->caps.eqe_factor = 0;
 979         }
 980
 981         if (hca_param.dev_cap_enabled & MLX4_DEV_CAP_64B_CQE_ENABLED) {
 982                 dev->caps.cqe_size   = 64;
 983                 dev->caps.userspace_caps |= MLX4_USER_DEV_CAP_LARGE_CQE;
 984         } else {
 985                 dev->caps.cqe_size   = 32;
 986         }
 987
 988         if (hca_param.dev_cap_enabled & MLX4_DEV_CAP_EQE_STRIDE_ENABLED) {
 989                 dev->caps.eqe_size = hca_param.eqe_size;
 990                 dev->caps.eqe_factor = 0;
 991         }
 992
 993         if (hca_param.dev_cap_enabled & MLX4_DEV_CAP_CQE_STRIDE_ENABLED) {
 994                 dev->caps.cqe_size = hca_param.cqe_size;
 995                 /* User still need to know when CQE > 32B */
 996                 dev->caps.userspace_caps |= MLX4_USER_DEV_CAP_LARGE_CQE;
 997         }
 998
 999         dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_TS;
1000         mlx4_warn(dev, "Timestamping is not supported in slave mode\n");
1001
1002         slave_adjust_steering_mode(dev, &dev_cap, &hca_param);
1003         mlx4_dbg(dev, "RSS support for IP fragments is %s\n",
1004                  hca_param.rss_ip_frags ? "on" : "off");
1005
1006         if (func_cap.extra_flags & MLX4_QUERY_FUNC_FLAGS_BF_RES_QP &&
1007             dev->caps.bf_reg_size)
1008                 dev->caps.alloc_res_qp_mask |= MLX4_RESERVE_ETH_BF_QP;
1009
1010         if (func_cap.extra_flags & MLX4_QUERY_FUNC_FLAGS_A0_RES_QP)
1011                 dev->caps.alloc_res_qp_mask |= MLX4_RESERVE_A0_QP;
1012
1013         return 0;
1014
1015 err_mem:
1016         kfree(dev->caps.qp0_qkey);
1017         kfree(dev->caps.qp0_tunnel);
1018         kfree(dev->caps.qp0_proxy);
1019         kfree(dev->caps.qp1_tunnel);
1020         kfree(dev->caps.qp1_proxy);
1021         dev->caps.qp0_qkey = NULL;
1022         dev->caps.qp0_tunnel = NULL;
1023         dev->caps.qp0_proxy = NULL;
1024         dev->caps.qp1_tunnel = NULL;
1025         dev->caps.qp1_proxy = NULL;
1026
1027         return err;
1028 }
1029
1030 static void mlx4_request_modules(struct mlx4_dev *dev)
1031 {
1032         int port;
1033         int has_ib_port = false;
1034         int has_eth_port = false;
1035 #define EN_DRV_NAME     "mlx4_en"
1036 #define IB_DRV_NAME     "mlx4_ib"
1037
1038         for (port = 1; port <= dev->caps.num_ports; port++) {
1039                 if (dev->caps.port_type[port] == MLX4_PORT_TYPE_IB)
1040                         has_ib_port = true;
1041                 else if (dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH)
1042                         has_eth_port = true;
1043         }
1044
1045         if (has_eth_port)
1046                 request_module_nowait(EN_DRV_NAME);
1047         if (has_ib_port || (dev->caps.flags & MLX4_DEV_CAP_FLAG_IBOE))
1048                 request_module_nowait(IB_DRV_NAME);
1049 }
1050
1051 /*
1052  * Change the port configuration of the device.
1053  * Every user of this function must hold the port mutex.
1054  */
1055 int mlx4_change_port_types(struct mlx4_dev *dev,
1056                            enum mlx4_port_type *port_types)
1057 {
1058         int err = 0;
1059         int change = 0;
1060         int port;
1061
1062         for (port = 0; port <  dev->caps.num_ports; port++) {
1063                 /* Change the port type only if the new type is different
1064                  * from the current, and not set to Auto */
1065                 if (port_types[port] != dev->caps.port_type[port + 1])
1066                         change = 1;
1067         }
1068         if (change) {
1069                 mlx4_unregister_device(dev);
1070                 for (port = 1; port <= dev->caps.num_ports; port++) {
1071                         mlx4_CLOSE_PORT(dev, port);
1072                         dev->caps.port_type[port] = port_types[port - 1];
1073                         err = mlx4_SET_PORT(dev, port, -1);
1074                         if (err) {
1075                                 mlx4_err(dev, "Failed to set port %d, aborting\n",
1076                                          port);
1077                                 goto out;
1078                         }
1079                 }
1080                 mlx4_set_port_mask(dev);
1081                 err = mlx4_register_device(dev);
1082                 if (err) {
1083                         mlx4_err(dev, "Failed to register device\n");
1084                         goto out;
1085                 }
1086                 mlx4_request_modules(dev);
1087         }
1088
1089 out:
1090         return err;
1091 }
1092
1093 static ssize_t show_port_type(struct device *dev,
1094                               struct device_attribute *attr,
1095                               char *buf)
1096 {
1097         struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
1098                                                    port_attr);
1099         struct mlx4_dev *mdev = info->dev;
1100         char type[8];
1101
1102         sprintf(type, "%s",
1103                 (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_IB) ?
1104                 "ib" : "eth");
1105         if (mdev->caps.possible_type[info->port] == MLX4_PORT_TYPE_AUTO)
1106                 sprintf(buf, "auto (%s)\n", type);
1107         else
1108                 sprintf(buf, "%s\n", type);
1109
1110         return strlen(buf);
1111 }
1112
1113 static int __set_port_type(struct mlx4_port_info *info,
1114                            enum mlx4_port_type port_type)
1115 {
1116         struct mlx4_dev *mdev = info->dev;
1117         struct mlx4_priv *priv = mlx4_priv(mdev);
1118         enum mlx4_port_type types[MLX4_MAX_PORTS];
1119         enum mlx4_port_type new_types[MLX4_MAX_PORTS];
1120         int i;
1121         int err = 0;
1122
1123         if ((port_type & mdev->caps.supported_type[info->port]) != port_type) {
1124                 mlx4_err(mdev,
1125                          "Requested port type for port %d is not supported on this HCA\n",
1126                          info->port);
1127                 err = -EINVAL;
1128                 goto err_sup;
1129         }
1130
1131         mlx4_stop_sense(mdev);
1132         mutex_lock(&priv->port_mutex);
1133         info->tmp_type = port_type;
1134
1135         /* Possible type is always the one that was delivered */
1136         mdev->caps.possible_type[info->port] = info->tmp_type;
1137
1138         for (i = 0; i < mdev->caps.num_ports; i++) {
1139                 types[i] = priv->port[i+1].tmp_type ? priv->port[i+1].tmp_type :
1140                                         mdev->caps.possible_type[i+1];
1141                 if (types[i] == MLX4_PORT_TYPE_AUTO)
1142                         types[i] = mdev->caps.port_type[i+1];
1143         }
1144
1145         if (!(mdev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP) &&
1146             !(mdev->caps.flags & MLX4_DEV_CAP_FLAG_SENSE_SUPPORT)) {
1147                 for (i = 1; i <= mdev->caps.num_ports; i++) {
1148                         if (mdev->caps.possible_type[i] == MLX4_PORT_TYPE_AUTO) {
1149                                 mdev->caps.possible_type[i] = mdev->caps.port_type[i];
1150                                 err = -EINVAL;
1151                         }
1152                 }
1153         }
1154         if (err) {
1155                 mlx4_err(mdev, "Auto sensing is not supported on this HCA. Set only 'eth' or 'ib' for both ports (should be the same)\n");
1156                 goto out;
1157         }
1158
1159         mlx4_do_sense_ports(mdev, new_types, types);
1160
1161         err = mlx4_check_port_params(mdev, new_types);
1162         if (err)
1163                 goto out;
1164
1165         /* We are about to apply the changes after the configuration
1166          * was verified, no need to remember the temporary types
1167          * any more */
1168         for (i = 0; i < mdev->caps.num_ports; i++)
1169                 priv->port[i + 1].tmp_type = 0;
1170
1171         err = mlx4_change_port_types(mdev, new_types);
1172
1173 out:
1174         mlx4_start_sense(mdev);
1175         mutex_unlock(&priv->port_mutex);
1176 err_sup:
1177         return err;
1178 }
1179
1180 static ssize_t set_port_type(struct device *dev,
1181                              struct device_attribute *attr,
1182                              const char *buf, size_t count)
1183 {
1184         struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
1185                                                    port_attr);
1186         struct mlx4_dev *mdev = info->dev;
1187         enum mlx4_port_type port_type;
1188         static DEFINE_MUTEX(set_port_type_mutex);
1189         int err;
1190
1191         mutex_lock(&set_port_type_mutex);
1192
1193         if (!strcmp(buf, "ib\n")) {
1194                 port_type = MLX4_PORT_TYPE_IB;
1195         } else if (!strcmp(buf, "eth\n")) {
1196                 port_type = MLX4_PORT_TYPE_ETH;
1197         } else if (!strcmp(buf, "auto\n")) {
1198                 port_type = MLX4_PORT_TYPE_AUTO;
1199         } else {
1200                 mlx4_err(mdev, "%s is not supported port type\n", buf);
1201                 err = -EINVAL;
1202                 goto err_out;
1203         }
1204
1205         err = __set_port_type(info, port_type);
1206
1207 err_out:
1208         mutex_unlock(&set_port_type_mutex);
1209
1210         return err ? err : count;
1211 }
1212
1213 enum ibta_mtu {
1214         IB_MTU_256  = 1,
1215         IB_MTU_512  = 2,
1216         IB_MTU_1024 = 3,
1217         IB_MTU_2048 = 4,
1218         IB_MTU_4096 = 5
1219 };
1220
1221 static inline int int_to_ibta_mtu(int mtu)
1222 {
1223         switch (mtu) {
1224         case 256:  return IB_MTU_256;
1225         case 512:  return IB_MTU_512;
1226         case 1024: return IB_MTU_1024;
1227         case 2048: return IB_MTU_2048;
1228         case 4096: return IB_MTU_4096;
1229         default: return -1;
1230         }
1231 }
1232
1233 static inline int ibta_mtu_to_int(enum ibta_mtu mtu)
1234 {
1235         switch (mtu) {
1236         case IB_MTU_256:  return  256;
1237         case IB_MTU_512:  return  512;
1238         case IB_MTU_1024: return 1024;
1239         case IB_MTU_2048: return 2048;
1240         case IB_MTU_4096: return 4096;
1241         default: return -1;
1242         }
1243 }
1244
1245 static ssize_t show_port_ib_mtu(struct device *dev,
1246                              struct device_attribute *attr,
1247                              char *buf)
1248 {
1249         struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
1250                                                    port_mtu_attr);
1251         struct mlx4_dev *mdev = info->dev;
1252
1253         if (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_ETH)
1254                 mlx4_warn(mdev, "port level mtu is only used for IB ports\n");
1255
1256         sprintf(buf, "%d\n",
1257                         ibta_mtu_to_int(mdev->caps.port_ib_mtu[info->port]));
1258         return strlen(buf);
1259 }
1260
1261 static ssize_t set_port_ib_mtu(struct device *dev,
1262                              struct device_attribute *attr,
1263                              const char *buf, size_t count)
1264 {
1265         struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
1266                                                    port_mtu_attr);
1267         struct mlx4_dev *mdev = info->dev;
1268         struct mlx4_priv *priv = mlx4_priv(mdev);
1269         int err, port, mtu, ibta_mtu = -1;
1270
1271         if (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_ETH) {
1272                 mlx4_warn(mdev, "port level mtu is only used for IB ports\n");
1273                 return -EINVAL;
1274         }
1275
1276         err = kstrtoint(buf, 0, &mtu);
1277         if (!err)
1278                 ibta_mtu = int_to_ibta_mtu(mtu);
1279
1280         if (err || ibta_mtu < 0) {
1281                 mlx4_err(mdev, "%s is invalid IBTA mtu\n", buf);
1282                 return -EINVAL;
1283         }
1284
1285         mdev->caps.port_ib_mtu[info->port] = ibta_mtu;
1286
1287         mlx4_stop_sense(mdev);
1288         mutex_lock(&priv->port_mutex);
1289         mlx4_unregister_device(mdev);
1290         for (port = 1; port <= mdev->caps.num_ports; port++) {
1291                 mlx4_CLOSE_PORT(mdev, port);
1292                 err = mlx4_SET_PORT(mdev, port, -1);
1293                 if (err) {
1294                         mlx4_err(mdev, "Failed to set port %d, aborting\n",
1295                                  port);
1296                         goto err_set_port;
1297                 }
1298         }
1299         err = mlx4_register_device(mdev);
1300 err_set_port:
1301         mutex_unlock(&priv->port_mutex);
1302         mlx4_start_sense(mdev);
1303         return err ? err : count;
1304 }
1305
1306 /* bond for multi-function device */
1307 #define MAX_MF_BOND_ALLOWED_SLAVES 63
1308 static int mlx4_mf_bond(struct mlx4_dev *dev)
1309 {
1310         int err = 0;
1311         int nvfs;
1312         struct mlx4_slaves_pport slaves_port1;
1313         struct mlx4_slaves_pport slaves_port2;
1314         DECLARE_BITMAP(slaves_port_1_2, MLX4_MFUNC_MAX);
1315
1316         slaves_port1 = mlx4_phys_to_slaves_pport(dev, 1);
1317         slaves_port2 = mlx4_phys_to_slaves_pport(dev, 2);
1318         bitmap_and(slaves_port_1_2,
1319                    slaves_port1.slaves, slaves_port2.slaves,
1320                    dev->persist->num_vfs + 1);
1321
1322         /* only single port vfs are allowed */
1323         if (bitmap_weight(slaves_port_1_2, dev->persist->num_vfs + 1) > 1) {
1324                 mlx4_warn(dev, "HA mode unsupported for dual ported VFs\n");
1325                 return -EINVAL;
1326         }
1327
1328         /* number of virtual functions is number of total functions minus one
1329          * physical function for each port.
1330          */
1331         nvfs = bitmap_weight(slaves_port1.slaves, dev->persist->num_vfs + 1) +
1332                 bitmap_weight(slaves_port2.slaves, dev->persist->num_vfs + 1) - 2;
1333
1334         /* limit on maximum allowed VFs */
1335         if (nvfs > MAX_MF_BOND_ALLOWED_SLAVES) {
1336                 mlx4_warn(dev, "HA mode is not supported for %d VFs (max %d are allowed)\n",
1337                           nvfs, MAX_MF_BOND_ALLOWED_SLAVES);
1338                 return -EINVAL;
1339         }
1340
1341         if (dev->caps.steering_mode != MLX4_STEERING_MODE_DEVICE_MANAGED) {
1342                 mlx4_warn(dev, "HA mode unsupported for NON DMFS steering\n");
1343                 return -EINVAL;
1344         }
1345
1346         err = mlx4_bond_mac_table(dev);
1347         if (err)
1348                 return err;
1349         err = mlx4_bond_vlan_table(dev);
1350         if (err)
1351                 goto err1;
1352         err = mlx4_bond_fs_rules(dev);
1353         if (err)
1354                 goto err2;
1355
1356         return 0;
1357 err2:
1358         (void)mlx4_unbond_vlan_table(dev);
1359 err1:
1360         (void)mlx4_unbond_mac_table(dev);
1361         return err;
1362 }
1363
1364 static int mlx4_mf_unbond(struct mlx4_dev *dev)
1365 {
1366         int ret, ret1;
1367
1368         ret = mlx4_unbond_fs_rules(dev);
1369         if (ret)
1370                 mlx4_warn(dev, "multifunction unbond for flow rules failedi (%d)\n", ret);
1371         ret1 = mlx4_unbond_mac_table(dev);
1372         if (ret1) {
1373                 mlx4_warn(dev, "multifunction unbond for MAC table failed (%d)\n", ret1);
1374                 ret = ret1;
1375         }
1376         ret1 = mlx4_unbond_vlan_table(dev);
1377         if (ret1) {
1378                 mlx4_warn(dev, "multifunction unbond for VLAN table failed (%d)\n", ret1);
1379                 ret = ret1;
1380         }
1381         return ret;
1382 }
1383
1384 int mlx4_bond(struct mlx4_dev *dev)
1385 {
1386         int ret = 0;
1387         struct mlx4_priv *priv = mlx4_priv(dev);
1388
1389         mutex_lock(&priv->bond_mutex);
1390
1391         if (!mlx4_is_bonded(dev)) {
1392                 ret = mlx4_do_bond(dev, true);
1393                 if (ret)
1394                         mlx4_err(dev, "Failed to bond device: %d\n", ret);
1395                 if (!ret && mlx4_is_master(dev)) {
1396                         ret = mlx4_mf_bond(dev);
1397                         if (ret) {
1398                                 mlx4_err(dev, "bond for multifunction failed\n");
1399                                 mlx4_do_bond(dev, false);
1400                         }
1401                 }
1402         }
1403
1404         mutex_unlock(&priv->bond_mutex);
1405         if (!ret)
1406                 mlx4_dbg(dev, "Device is bonded\n");
1407
1408         return ret;
1409 }
1410 EXPORT_SYMBOL_GPL(mlx4_bond);
1411
1412 int mlx4_unbond(struct mlx4_dev *dev)
1413 {
1414         int ret = 0;
1415         struct mlx4_priv *priv = mlx4_priv(dev);
1416
1417         mutex_lock(&priv->bond_mutex);
1418
1419         if (mlx4_is_bonded(dev)) {
1420                 int ret2 = 0;
1421
1422                 ret = mlx4_do_bond(dev, false);
1423                 if (ret)
1424                         mlx4_err(dev, "Failed to unbond device: %d\n", ret);
1425                 if (mlx4_is_master(dev))
1426                         ret2 = mlx4_mf_unbond(dev);
1427                 if (ret2) {
1428                         mlx4_warn(dev, "Failed to unbond device for multifunction (%d)\n", ret2);
1429                         ret = ret2;
1430                 }
1431         }
1432
1433         mutex_unlock(&priv->bond_mutex);
1434         if (!ret)
1435                 mlx4_dbg(dev, "Device is unbonded\n");
1436
1437         return ret;
1438 }
1439 EXPORT_SYMBOL_GPL(mlx4_unbond);
1440
1441
1442 int mlx4_port_map_set(struct mlx4_dev *dev, struct mlx4_port_map *v2p)
1443 {
1444         u8 port1 = v2p->port1;
1445         u8 port2 = v2p->port2;
1446         struct mlx4_priv *priv = mlx4_priv(dev);
1447         int err;
1448
1449         if (!(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_PORT_REMAP))
1450                 return -EOPNOTSUPP;
1451
1452         mutex_lock(&priv->bond_mutex);
1453
1454         /* zero means keep current mapping for this port */
1455         if (port1 == 0)
1456                 port1 = priv->v2p.port1;
1457         if (port2 == 0)
1458                 port2 = priv->v2p.port2;
1459
1460         if ((port1 < 1) || (port1 > MLX4_MAX_PORTS) ||
1461             (port2 < 1) || (port2 > MLX4_MAX_PORTS) ||
1462             (port1 == 2 && port2 == 1)) {
1463                 /* besides boundary checks cross mapping makes
1464                  * no sense and therefore not allowed */
1465                 err = -EINVAL;
1466         } else if ((port1 == priv->v2p.port1) &&
1467                  (port2 == priv->v2p.port2)) {
1468                 err = 0;
1469         } else {
1470                 err = mlx4_virt2phy_port_map(dev, port1, port2);
1471                 if (!err) {
1472                         mlx4_dbg(dev, "port map changed: [%d][%d]\n",
1473                                  port1, port2);
1474                         priv->v2p.port1 = port1;
1475                         priv->v2p.port2 = port2;
1476                 } else {
1477                         mlx4_err(dev, "Failed to change port mape: %d\n", err);
1478                 }
1479         }
1480
1481         mutex_unlock(&priv->bond_mutex);
1482         return err;
1483 }
1484 EXPORT_SYMBOL_GPL(mlx4_port_map_set);
1485
1486 static int mlx4_load_fw(struct mlx4_dev *dev)
1487 {
1488         struct mlx4_priv *priv = mlx4_priv(dev);
1489         int err;
1490
1491         priv->fw.fw_icm = mlx4_alloc_icm(dev, priv->fw.fw_pages,
1492                                          GFP_HIGHUSER | __GFP_NOWARN, 0);
1493         if (!priv->fw.fw_icm) {
1494                 mlx4_err(dev, "Couldn't allocate FW area, aborting\n");
1495                 return -ENOMEM;
1496         }
1497
1498         err = mlx4_MAP_FA(dev, priv->fw.fw_icm);
1499         if (err) {
1500                 mlx4_err(dev, "MAP_FA command failed, aborting\n");
1501                 goto err_free;
1502         }
1503
1504         err = mlx4_RUN_FW(dev);
1505         if (err) {
1506                 mlx4_err(dev, "RUN_FW command failed, aborting\n");
1507                 goto err_unmap_fa;
1508         }
1509
1510         return 0;
1511
1512 err_unmap_fa:
1513         mlx4_UNMAP_FA(dev);
1514
1515 err_free:
1516         mlx4_free_icm(dev, priv->fw.fw_icm, 0);
1517         return err;
1518 }
1519
1520 static int mlx4_init_cmpt_table(struct mlx4_dev *dev, u64 cmpt_base,
1521                                 int cmpt_entry_sz)
1522 {
1523         struct mlx4_priv *priv = mlx4_priv(dev);
1524         int err;
1525         int num_eqs;
1526
1527         err = mlx4_init_icm_table(dev, &priv->qp_table.cmpt_table,
1528                                   cmpt_base +
1529                                   ((u64) (MLX4_CMPT_TYPE_QP *
1530                                           cmpt_entry_sz) << MLX4_CMPT_SHIFT),
1531                                   cmpt_entry_sz, dev->caps.num_qps,
1532                                   dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
1533                                   0, 0);
1534         if (err)
1535                 goto err;
1536
1537         err = mlx4_init_icm_table(dev, &priv->srq_table.cmpt_table,
1538                                   cmpt_base +
1539                                   ((u64) (MLX4_CMPT_TYPE_SRQ *
1540                                           cmpt_entry_sz) << MLX4_CMPT_SHIFT),
1541                                   cmpt_entry_sz, dev->caps.num_srqs,
1542                                   dev->caps.reserved_srqs, 0, 0);
1543         if (err)
1544                 goto err_qp;
1545
1546         err = mlx4_init_icm_table(dev, &priv->cq_table.cmpt_table,
1547                                   cmpt_base +
1548                                   ((u64) (MLX4_CMPT_TYPE_CQ *
1549                                           cmpt_entry_sz) << MLX4_CMPT_SHIFT),
1550                                   cmpt_entry_sz, dev->caps.num_cqs,
1551                                   dev->caps.reserved_cqs, 0, 0);
1552         if (err)
1553                 goto err_srq;
1554
1555         num_eqs = dev->phys_caps.num_phys_eqs;
1556         err = mlx4_init_icm_table(dev, &priv->eq_table.cmpt_table,
1557                                   cmpt_base +
1558                                   ((u64) (MLX4_CMPT_TYPE_EQ *
1559                                           cmpt_entry_sz) << MLX4_CMPT_SHIFT),
1560                                   cmpt_entry_sz, num_eqs, num_eqs, 0, 0);
1561         if (err)
1562                 goto err_cq;
1563
1564         return 0;
1565
1566 err_cq:
1567         mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
1568
1569 err_srq:
1570         mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
1571
1572 err_qp:
1573         mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
1574
1575 err:
1576         return err;
1577 }
1578
1579 static int mlx4_init_icm(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap,
1580                          struct mlx4_init_hca_param *init_hca, u64 icm_size)
1581 {
1582         struct mlx4_priv *priv = mlx4_priv(dev);
1583         u64 aux_pages;
1584         int num_eqs;
1585         int err;
1586
1587         err = mlx4_SET_ICM_SIZE(dev, icm_size, &aux_pages);
1588         if (err) {
1589                 mlx4_err(dev, "SET_ICM_SIZE command failed, aborting\n");
1590                 return err;
1591         }
1592
1593         mlx4_dbg(dev, "%lld KB of HCA context requires %lld KB aux memory\n",
1594                  (unsigned long long) icm_size >> 10,
1595                  (unsigned long long) aux_pages << 2);
1596
1597         priv->fw.aux_icm = mlx4_alloc_icm(dev, aux_pages,
1598                                           GFP_HIGHUSER | __GFP_NOWARN, 0);
1599         if (!priv->fw.aux_icm) {
1600                 mlx4_err(dev, "Couldn't allocate aux memory, aborting\n");
1601                 return -ENOMEM;
1602         }
1603
1604         err = mlx4_MAP_ICM_AUX(dev, priv->fw.aux_icm);
1605         if (err) {
1606                 mlx4_err(dev, "MAP_ICM_AUX command failed, aborting\n");
1607                 goto err_free_aux;
1608         }
1609
1610         err = mlx4_init_cmpt_table(dev, init_hca->cmpt_base, dev_cap->cmpt_entry_sz);
1611         if (err) {
1612                 mlx4_err(dev, "Failed to map cMPT context memory, aborting\n");
1613                 goto err_unmap_aux;
1614         }
1615
1616
1617         num_eqs = dev->phys_caps.num_phys_eqs;
1618         err = mlx4_init_icm_table(dev, &priv->eq_table.table,
1619                                   init_hca->eqc_base, dev_cap->eqc_entry_sz,
1620                                   num_eqs, num_eqs, 0, 0);
1621         if (err) {
1622                 mlx4_err(dev, "Failed to map EQ context memory, aborting\n");
1623                 goto err_unmap_cmpt;
1624         }
1625
1626         /*
1627          * Reserved MTT entries must be aligned up to a cacheline
1628          * boundary, since the FW will write to them, while the driver
1629          * writes to all other MTT entries. (The variable
1630          * dev->caps.mtt_entry_sz below is really the MTT segment
1631          * size, not the raw entry size)
1632          */
1633         dev->caps.reserved_mtts =
1634                 ALIGN(dev->caps.reserved_mtts * dev->caps.mtt_entry_sz,
1635                       dma_get_cache_alignment()) / dev->caps.mtt_entry_sz;
1636
1637         err = mlx4_init_icm_table(dev, &priv->mr_table.mtt_table,
1638                                   init_hca->mtt_base,
1639                                   dev->caps.mtt_entry_sz,
1640                                   dev->caps.num_mtts,
1641                                   dev->caps.reserved_mtts, 1, 0);
1642         if (err) {
1643                 mlx4_err(dev, "Failed to map MTT context memory, aborting\n");
1644                 goto err_unmap_eq;
1645         }
1646
1647         err = mlx4_init_icm_table(dev, &priv->mr_table.dmpt_table,
1648                                   init_hca->dmpt_base,
1649                                   dev_cap->dmpt_entry_sz,
1650                                   dev->caps.num_mpts,
1651                                   dev->caps.reserved_mrws, 1, 1);
1652         if (err) {
1653                 mlx4_err(dev, "Failed to map dMPT context memory, aborting\n");
1654                 goto err_unmap_mtt;
1655         }
1656
1657         err = mlx4_init_icm_table(dev, &priv->qp_table.qp_table,
1658                                   init_hca->qpc_base,
1659                                   dev_cap->qpc_entry_sz,
1660                                   dev->caps.num_qps,
1661                                   dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
1662                                   0, 0);
1663         if (err) {
1664                 mlx4_err(dev, "Failed to map QP context memory, aborting\n");
1665                 goto err_unmap_dmpt;
1666         }
1667
1668         err = mlx4_init_icm_table(dev, &priv->qp_table.auxc_table,
1669                                   init_hca->auxc_base,
1670                                   dev_cap->aux_entry_sz,
1671                                   dev->caps.num_qps,
1672                                   dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
1673                                   0, 0);
1674         if (err) {
1675                 mlx4_err(dev, "Failed to map AUXC context memory, aborting\n");
1676                 goto err_unmap_qp;
1677         }
1678
1679         err = mlx4_init_icm_table(dev, &priv->qp_table.altc_table,
1680                                   init_hca->altc_base,
1681                                   dev_cap->altc_entry_sz,
1682                                   dev->caps.num_qps,
1683                                   dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
1684                                   0, 0);
1685         if (err) {
1686                 mlx4_err(dev, "Failed to map ALTC context memory, aborting\n");
1687                 goto err_unmap_auxc;
1688         }
1689
1690         err = mlx4_init_icm_table(dev, &priv->qp_table.rdmarc_table,
1691                                   init_hca->rdmarc_base,
1692                                   dev_cap->rdmarc_entry_sz << priv->qp_table.rdmarc_shift,
1693                                   dev->caps.num_qps,
1694                                   dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW],
1695                                   0, 0);
1696         if (err) {
1697                 mlx4_err(dev, "Failed to map RDMARC context memory, aborting\n");
1698                 goto err_unmap_altc;
1699         }
1700
1701         err = mlx4_init_icm_table(dev, &priv->cq_table.table,
1702                                   init_hca->cqc_base,
1703                                   dev_cap->cqc_entry_sz,
1704                                   dev->caps.num_cqs,
1705                                   dev->caps.reserved_cqs, 0, 0);
1706         if (err) {
1707                 mlx4_err(dev, "Failed to map CQ context memory, aborting\n");
1708                 goto err_unmap_rdmarc;
1709         }
1710
1711         err = mlx4_init_icm_table(dev, &priv->srq_table.table,
1712                                   init_hca->srqc_base,
1713                                   dev_cap->srq_entry_sz,
1714                                   dev->caps.num_srqs,
1715                                   dev->caps.reserved_srqs, 0, 0);
1716         if (err) {
1717                 mlx4_err(dev, "Failed to map SRQ context memory, aborting\n");
1718                 goto err_unmap_cq;
1719         }
1720
1721         /*
1722          * For flow steering device managed mode it is required to use
1723          * mlx4_init_icm_table. For B0 steering mode it's not strictly
1724          * required, but for simplicity just map the whole multicast
1725          * group table now.  The table isn't very big and it's a lot
1726          * easier than trying to track ref counts.
1727          */
1728         err = mlx4_init_icm_table(dev, &priv->mcg_table.table,
1729                                   init_hca->mc_base,
1730                                   mlx4_get_mgm_entry_size(dev),
1731                                   dev->caps.num_mgms + dev->caps.num_amgms,
1732                                   dev->caps.num_mgms + dev->caps.num_amgms,
1733                                   0, 0);
1734         if (err) {
1735                 mlx4_err(dev, "Failed to map MCG context memory, aborting\n");
1736                 goto err_unmap_srq;
1737         }
1738
1739         return 0;
1740
1741 err_unmap_srq:
1742         mlx4_cleanup_icm_table(dev, &priv->srq_table.table);
1743
1744 err_unmap_cq:
1745         mlx4_cleanup_icm_table(dev, &priv->cq_table.table);
1746
1747 err_unmap_rdmarc:
1748         mlx4_cleanup_icm_table(dev, &priv->qp_table.rdmarc_table);
1749
1750 err_unmap_altc:
1751         mlx4_cleanup_icm_table(dev, &priv->qp_table.altc_table);
1752
1753 err_unmap_auxc:
1754         mlx4_cleanup_icm_table(dev, &priv->qp_table.auxc_table);
1755
1756 err_unmap_qp:
1757         mlx4_cleanup_icm_table(dev, &priv->qp_table.qp_table);
1758
1759 err_unmap_dmpt:
1760         mlx4_cleanup_icm_table(dev, &priv->mr_table.dmpt_table);
1761
1762 err_unmap_mtt:
1763         mlx4_cleanup_icm_table(dev, &priv->mr_table.mtt_table);
1764
1765 err_unmap_eq:
1766         mlx4_cleanup_icm_table(dev, &priv->eq_table.table);
1767
1768 err_unmap_cmpt:
1769         mlx4_cleanup_icm_table(dev, &priv->eq_table.cmpt_table);
1770         mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
1771         mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
1772         mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
1773
1774 err_unmap_aux:
1775         mlx4_UNMAP_ICM_AUX(dev);
1776
1777 err_free_aux:
1778         mlx4_free_icm(dev, priv->fw.aux_icm, 0);
1779
1780         return err;
1781 }
1782
1783 static void mlx4_free_icms(struct mlx4_dev *dev)
1784 {
1785         struct mlx4_priv *priv = mlx4_priv(dev);
1786
1787         mlx4_cleanup_icm_table(dev, &priv->mcg_table.table);
1788         mlx4_cleanup_icm_table(dev, &priv->srq_table.table);
1789         mlx4_cleanup_icm_table(dev, &priv->cq_table.table);
1790         mlx4_cleanup_icm_table(dev, &priv->qp_table.rdmarc_table);
1791         mlx4_cleanup_icm_table(dev, &priv->qp_table.altc_table);
1792         mlx4_cleanup_icm_table(dev, &priv->qp_table.auxc_table);
1793         mlx4_cleanup_icm_table(dev, &priv->qp_table.qp_table);
1794         mlx4_cleanup_icm_table(dev, &priv->mr_table.dmpt_table);
1795         mlx4_cleanup_icm_table(dev, &priv->mr_table.mtt_table);
1796         mlx4_cleanup_icm_table(dev, &priv->eq_table.table);
1797         mlx4_cleanup_icm_table(dev, &priv->eq_table.cmpt_table);
1798         mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
1799         mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
1800         mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
1801
1802         mlx4_UNMAP_ICM_AUX(dev);
1803         mlx4_free_icm(dev, priv->fw.aux_icm, 0);
1804 }
1805
1806 static void mlx4_slave_exit(struct mlx4_dev *dev)
1807 {
1808         struct mlx4_priv *priv = mlx4_priv(dev);
1809
1810         mutex_lock(&priv->cmd.slave_cmd_mutex);
1811         if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0, MLX4_COMM_CMD_NA_OP,
1812                           MLX4_COMM_TIME))
1813                 mlx4_warn(dev, "Failed to close slave function\n");
1814         mutex_unlock(&priv->cmd.slave_cmd_mutex);
1815 }
1816
1817 static int map_bf_area(struct mlx4_dev *dev)
1818 {
1819         struct mlx4_priv *priv = mlx4_priv(dev);
1820         resource_size_t bf_start;
1821         resource_size_t bf_len;
1822         int err = 0;
1823
1824         if (!dev->caps.bf_reg_size)
1825                 return -ENXIO;
1826
1827         bf_start = pci_resource_start(dev->persist->pdev, 2) +
1828                         (dev->caps.num_uars << PAGE_SHIFT);
1829         bf_len = pci_resource_len(dev->persist->pdev, 2) -
1830                         (dev->caps.num_uars << PAGE_SHIFT);
1831         priv->bf_mapping = io_mapping_create_wc(bf_start, bf_len);
1832         if (!priv->bf_mapping)
1833                 err = -ENOMEM;
1834
1835         return err;
1836 }
1837
1838 static void unmap_bf_area(struct mlx4_dev *dev)
1839 {
1840         if (mlx4_priv(dev)->bf_mapping)
1841                 io_mapping_free(mlx4_priv(dev)->bf_mapping);
1842 }
1843
1844 u64 mlx4_read_clock(struct mlx4_dev *dev)
1845 {
1846         u32 clockhi, clocklo, clockhi1;
1847         u64 cycles;
1848         int i;
1849         struct mlx4_priv *priv = mlx4_priv(dev);
1850
1851         for (i = 0; i < 10; i++) {
1852                 clockhi = swab32(readl(priv->clock_mapping));
1853                 clocklo = swab32(readl(priv->clock_mapping + 4));
1854                 clockhi1 = swab32(readl(priv->clock_mapping));
1855                 if (clockhi == clockhi1)
1856                         break;
1857         }
1858
1859         cycles = (u64) clockhi << 32 | (u64) clocklo;
1860
1861         return cycles;
1862 }
1863 EXPORT_SYMBOL_GPL(mlx4_read_clock);
1864
1865
1866 static int map_internal_clock(struct mlx4_dev *dev)
1867 {
1868         struct mlx4_priv *priv = mlx4_priv(dev);
1869
1870         priv->clock_mapping =
1871                 ioremap(pci_resource_start(dev->persist->pdev,
1872                                            priv->fw.clock_bar) +
1873                         priv->fw.clock_offset, MLX4_CLOCK_SIZE);
1874
1875         if (!priv->clock_mapping)
1876                 return -ENOMEM;
1877
1878         return 0;
1879 }
1880
1881 int mlx4_get_internal_clock_params(struct mlx4_dev *dev,
1882                                    struct mlx4_clock_params *params)
1883 {
1884         struct mlx4_priv *priv = mlx4_priv(dev);
1885
1886         if (mlx4_is_slave(dev))
1887                 return -EOPNOTSUPP;
1888
1889         if (!params)
1890                 return -EINVAL;
1891
1892         params->bar = priv->fw.clock_bar;
1893         params->offset = priv->fw.clock_offset;
1894         params->size = MLX4_CLOCK_SIZE;
1895
1896         return 0;
1897 }
1898 EXPORT_SYMBOL_GPL(mlx4_get_internal_clock_params);
1899
1900 static void unmap_internal_clock(struct mlx4_dev *dev)
1901 {
1902         struct mlx4_priv *priv = mlx4_priv(dev);
1903
1904         if (priv->clock_mapping)
1905                 iounmap(priv->clock_mapping);
1906 }
1907
1908 static void mlx4_close_hca(struct mlx4_dev *dev)
1909 {
1910         unmap_internal_clock(dev);
1911         unmap_bf_area(dev);
1912         if (mlx4_is_slave(dev))
1913                 mlx4_slave_exit(dev);
1914         else {
1915                 mlx4_CLOSE_HCA(dev, 0);
1916                 mlx4_free_icms(dev);
1917         }
1918 }
1919
1920 static void mlx4_close_fw(struct mlx4_dev *dev)
1921 {
1922         if (!mlx4_is_slave(dev)) {
1923                 mlx4_UNMAP_FA(dev);
1924                 mlx4_free_icm(dev, mlx4_priv(dev)->fw.fw_icm, 0);
1925         }
1926 }
1927
1928 static int mlx4_comm_check_offline(struct mlx4_dev *dev)
1929 {
1930 #define COMM_CHAN_OFFLINE_OFFSET 0x09
1931
1932         u32 comm_flags;
1933         u32 offline_bit;
1934         unsigned long end;
1935         struct mlx4_priv *priv = mlx4_priv(dev);
1936
1937         end = msecs_to_jiffies(MLX4_COMM_OFFLINE_TIME_OUT) + jiffies;
1938         while (time_before(jiffies, end)) {
1939                 comm_flags = swab32(readl((__iomem char *)priv->mfunc.comm +
1940                                           MLX4_COMM_CHAN_FLAGS));
1941                 offline_bit = (comm_flags &
1942                                (u32)(1 << COMM_CHAN_OFFLINE_OFFSET));
1943                 if (!offline_bit)
1944                         return 0;
1945
1946                 /* If device removal has been requested,
1947                  * do not continue retrying.
1948                  */
1949                 if (dev->persist->interface_state &
1950                     MLX4_INTERFACE_STATE_NOWAIT)
1951                         break;
1952
1953                 /* There are cases as part of AER/Reset flow that PF needs
1954                  * around 100 msec to load. We therefore sleep for 100 msec
1955                  * to allow other tasks to make use of that CPU during this
1956                  * time interval.
1957                  */
1958                 msleep(100);
1959         }
1960         mlx4_err(dev, "Communication channel is offline.\n");
1961         return -EIO;
1962 }
1963
1964 static void mlx4_reset_vf_support(struct mlx4_dev *dev)
1965 {
1966 #define COMM_CHAN_RST_OFFSET 0x1e
1967
1968         struct mlx4_priv *priv = mlx4_priv(dev);
1969         u32 comm_rst;
1970         u32 comm_caps;
1971
1972         comm_caps = swab32(readl((__iomem char *)priv->mfunc.comm +
1973                                  MLX4_COMM_CHAN_CAPS));
1974         comm_rst = (comm_caps & (u32)(1 << COMM_CHAN_RST_OFFSET));
1975
1976         if (comm_rst)
1977                 dev->caps.vf_caps |= MLX4_VF_CAP_FLAG_RESET;
1978 }
1979
1980 static int mlx4_init_slave(struct mlx4_dev *dev)
1981 {
1982         struct mlx4_priv *priv = mlx4_priv(dev);
1983         u64 dma = (u64) priv->mfunc.vhcr_dma;
1984         int ret_from_reset = 0;
1985         u32 slave_read;
1986         u32 cmd_channel_ver;
1987
1988         if (atomic_read(&pf_loading)) {
1989                 mlx4_warn(dev, "PF is not ready - Deferring probe\n");
1990                 return -EPROBE_DEFER;
1991         }
1992
1993         mutex_lock(&priv->cmd.slave_cmd_mutex);
1994         priv->cmd.max_cmds = 1;
1995         if (mlx4_comm_check_offline(dev)) {
1996                 mlx4_err(dev, "PF is not responsive, skipping initialization\n");
1997                 goto err_offline;
1998         }
1999
2000         mlx4_reset_vf_support(dev);
2001         mlx4_warn(dev, "Sending reset\n");
2002         ret_from_reset = mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0,
2003                                        MLX4_COMM_CMD_NA_OP, MLX4_COMM_TIME);
2004         /* if we are in the middle of flr the slave will try
2005          * NUM_OF_RESET_RETRIES times before leaving.*/
2006         if (ret_from_reset) {
2007                 if (MLX4_DELAY_RESET_SLAVE == ret_from_reset) {
2008                         mlx4_warn(dev, "slave is currently in the middle of FLR - Deferring probe\n");
2009                         mutex_unlock(&priv->cmd.slave_cmd_mutex);
2010                         return -EPROBE_DEFER;
2011                 } else
2012                         goto err;
2013         }
2014
2015         /* check the driver version - the slave I/F revision
2016          * must match the master's */
2017         slave_read = swab32(readl(&priv->mfunc.comm->slave_read));
2018         cmd_channel_ver = mlx4_comm_get_version();
2019
2020         if (MLX4_COMM_GET_IF_REV(cmd_channel_ver) !=
2021                 MLX4_COMM_GET_IF_REV(slave_read)) {
2022                 mlx4_err(dev, "slave driver version is not supported by the master\n");
2023                 goto err;
2024         }
2025
2026         mlx4_warn(dev, "Sending vhcr0\n");
2027         if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR0, dma >> 48,
2028                              MLX4_COMM_CMD_NA_OP, MLX4_COMM_TIME))
2029                 goto err;
2030         if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR1, dma >> 32,
2031                              MLX4_COMM_CMD_NA_OP, MLX4_COMM_TIME))
2032                 goto err;
2033         if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR2, dma >> 16,
2034                              MLX4_COMM_CMD_NA_OP, MLX4_COMM_TIME))
2035                 goto err;
2036         if (mlx4_comm_cmd(dev, MLX4_COMM_CMD_VHCR_EN, dma,
2037                           MLX4_COMM_CMD_NA_OP, MLX4_COMM_TIME))
2038                 goto err;
2039
2040         mutex_unlock(&priv->cmd.slave_cmd_mutex);
2041         return 0;
2042
2043 err:
2044         mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, 0, MLX4_COMM_CMD_NA_OP, 0);
2045 err_offline:
2046         mutex_unlock(&priv->cmd.slave_cmd_mutex);
2047         return -EIO;
2048 }
2049
2050 static void mlx4_parav_master_pf_caps(struct mlx4_dev *dev)
2051 {
2052         int i;
2053
2054         for (i = 1; i <= dev->caps.num_ports; i++) {
2055                 if (dev->caps.port_type[i] == MLX4_PORT_TYPE_ETH)
2056                         dev->caps.gid_table_len[i] =
2057                                 mlx4_get_slave_num_gids(dev, 0, i);
2058                 else
2059                         dev->caps.gid_table_len[i] = 1;
2060                 dev->caps.pkey_table_len[i] =
2061                         dev->phys_caps.pkey_phys_table_len[i] - 1;
2062         }
2063 }
2064
2065 static int choose_log_fs_mgm_entry_size(int qp_per_entry)
2066 {
2067         int i = MLX4_MIN_MGM_LOG_ENTRY_SIZE;
2068
2069         for (i = MLX4_MIN_MGM_LOG_ENTRY_SIZE; i <= MLX4_MAX_MGM_LOG_ENTRY_SIZE;
2070               i++) {
2071                 if (qp_per_entry <= 4 * ((1 << i) / 16 - 2))
2072                         break;
2073         }
2074
2075         return (i <= MLX4_MAX_MGM_LOG_ENTRY_SIZE) ? i : -1;
2076 }
2077
2078 static const char *dmfs_high_rate_steering_mode_str(int dmfs_high_steer_mode)
2079 {
2080         switch (dmfs_high_steer_mode) {
2081         case MLX4_STEERING_DMFS_A0_DEFAULT:
2082                 return "default performance";
2083
2084         case MLX4_STEERING_DMFS_A0_DYNAMIC:
2085                 return "dynamic hybrid mode";
2086
2087         case MLX4_STEERING_DMFS_A0_STATIC:
2088                 return "performance optimized for limited rule configuration (static)";
2089
2090         case MLX4_STEERING_DMFS_A0_DISABLE:
2091                 return "disabled performance optimized steering";
2092
2093         case MLX4_STEERING_DMFS_A0_NOT_SUPPORTED:
2094                 return "performance optimized steering not supported";
2095
2096         default:
2097                 return "Unrecognized mode";
2098         }
2099 }
2100
2101 #define MLX4_DMFS_A0_STEERING                   (1UL << 2)
2102
2103 static void choose_steering_mode(struct mlx4_dev *dev,
2104                                  struct mlx4_dev_cap *dev_cap)
2105 {
2106         if (mlx4_log_num_mgm_entry_size <= 0) {
2107                 if ((-mlx4_log_num_mgm_entry_size) & MLX4_DMFS_A0_STEERING) {
2108                         if (dev->caps.dmfs_high_steer_mode ==
2109                             MLX4_STEERING_DMFS_A0_NOT_SUPPORTED)
2110                                 mlx4_err(dev, "DMFS high rate mode not supported\n");
2111                         else
2112                                 dev->caps.dmfs_high_steer_mode =
2113                                         MLX4_STEERING_DMFS_A0_STATIC;
2114                 }
2115         }
2116
2117         if (mlx4_log_num_mgm_entry_size <= 0 &&
2118             dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_FS_EN &&
2119             (!mlx4_is_mfunc(dev) ||
2120              (dev_cap->fs_max_num_qp_per_entry >=
2121              (dev->persist->num_vfs + 1))) &&
2122             choose_log_fs_mgm_entry_size(dev_cap->fs_max_num_qp_per_entry) >=
2123                 MLX4_MIN_MGM_LOG_ENTRY_SIZE) {
2124                 dev->oper_log_mgm_entry_size =
2125                         choose_log_fs_mgm_entry_size(dev_cap->fs_max_num_qp_per_entry);
2126                 dev->caps.steering_mode = MLX4_STEERING_MODE_DEVICE_MANAGED;
2127                 dev->caps.num_qp_per_mgm = dev_cap->fs_max_num_qp_per_entry;
2128                 dev->caps.fs_log_max_ucast_qp_range_size =
2129                         dev_cap->fs_log_max_ucast_qp_range_size;
2130         } else {
2131                 if (dev->caps.dmfs_high_steer_mode !=
2132                     MLX4_STEERING_DMFS_A0_NOT_SUPPORTED)
2133                         dev->caps.dmfs_high_steer_mode = MLX4_STEERING_DMFS_A0_DISABLE;
2134                 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER &&
2135                     dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER)
2136                         dev->caps.steering_mode = MLX4_STEERING_MODE_B0;
2137                 else {
2138                         dev->caps.steering_mode = MLX4_STEERING_MODE_A0;
2139
2140                         if (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER ||
2141                             dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_MC_STEER)
2142                                 mlx4_warn(dev, "Must have both UC_STEER and MC_STEER flags set to use B0 steering - falling back to A0 steering mode\n");
2143                 }
2144                 dev->oper_log_mgm_entry_size =
2145                         mlx4_log_num_mgm_entry_size > 0 ?
2146                         mlx4_log_num_mgm_entry_size :
2147                         MLX4_DEFAULT_MGM_LOG_ENTRY_SIZE;
2148                 dev->caps.num_qp_per_mgm = mlx4_get_qp_per_mgm(dev);
2149         }
2150         mlx4_dbg(dev, "Steering mode is: %s, oper_log_mgm_entry_size = %d, modparam log_num_mgm_entry_size = %d\n",
2151                  mlx4_steering_mode_str(dev->caps.steering_mode),
2152                  dev->oper_log_mgm_entry_size,
2153                  mlx4_log_num_mgm_entry_size);
2154 }
2155
2156 static void choose_tunnel_offload_mode(struct mlx4_dev *dev,
2157                                        struct mlx4_dev_cap *dev_cap)
2158 {
2159         if (dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED &&
2160             dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_VXLAN_OFFLOADS)
2161                 dev->caps.tunnel_offload_mode = MLX4_TUNNEL_OFFLOAD_MODE_VXLAN;
2162         else
2163                 dev->caps.tunnel_offload_mode = MLX4_TUNNEL_OFFLOAD_MODE_NONE;
2164
2165         mlx4_dbg(dev, "Tunneling offload mode is: %s\n",  (dev->caps.tunnel_offload_mode
2166                  == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) ? "vxlan" : "none");
2167 }
2168
2169 static int mlx4_validate_optimized_steering(struct mlx4_dev *dev)
2170 {
2171         int i;
2172         struct mlx4_port_cap port_cap;
2173
2174         if (dev->caps.dmfs_high_steer_mode == MLX4_STEERING_DMFS_A0_NOT_SUPPORTED)
2175                 return -EINVAL;
2176
2177         for (i = 1; i <= dev->caps.num_ports; i++) {
2178                 if (mlx4_dev_port(dev, i, &port_cap)) {
2179                         mlx4_err(dev,
2180                                  "QUERY_DEV_CAP command failed, can't veify DMFS high rate steering.\n");
2181                 } else if ((dev->caps.dmfs_high_steer_mode !=
2182                             MLX4_STEERING_DMFS_A0_DEFAULT) &&
2183                            (port_cap.dmfs_optimized_state ==
2184                             !!(dev->caps.dmfs_high_steer_mode ==
2185                             MLX4_STEERING_DMFS_A0_DISABLE))) {
2186                         mlx4_err(dev,
2187                                  "DMFS high rate steer mode differ, driver requested %s but %s in FW.\n",
2188                                  dmfs_high_rate_steering_mode_str(
2189                                         dev->caps.dmfs_high_steer_mode),
2190                                  (port_cap.dmfs_optimized_state ?
2191                                         "enabled" : "disabled"));
2192                 }
2193         }
2194
2195         return 0;
2196 }
2197
2198 static int mlx4_init_fw(struct mlx4_dev *dev)
2199 {
2200         struct mlx4_mod_stat_cfg   mlx4_cfg;
2201         int err = 0;
2202
2203         if (!mlx4_is_slave(dev)) {
2204                 err = mlx4_QUERY_FW(dev);
2205                 if (err) {
2206                         if (err == -EACCES)
2207                                 mlx4_info(dev, "non-primary physical function, skipping\n");
2208                         else
2209                                 mlx4_err(dev, "QUERY_FW command failed, aborting\n");
2210                         return err;
2211                 }
2212
2213                 err = mlx4_load_fw(dev);
2214                 if (err) {
2215                         mlx4_err(dev, "Failed to start FW, aborting\n");
2216                         return err;
2217                 }
2218
2219                 mlx4_cfg.log_pg_sz_m = 1;
2220                 mlx4_cfg.log_pg_sz = 0;
2221                 err = mlx4_MOD_STAT_CFG(dev, &mlx4_cfg);
2222                 if (err)
2223                         mlx4_warn(dev, "Failed to override log_pg_sz parameter\n");
2224         }
2225
2226         return err;
2227 }
2228
2229 static int mlx4_init_hca(struct mlx4_dev *dev)
2230 {
2231         struct mlx4_priv          *priv = mlx4_priv(dev);
2232         struct mlx4_adapter        adapter;
2233         struct mlx4_dev_cap        dev_cap;
2234         struct mlx4_profile        profile;
2235         struct mlx4_init_hca_param init_hca;
2236         u64 icm_size;
2237         struct mlx4_config_dev_params params;
2238         int err;
2239
2240         if (!mlx4_is_slave(dev)) {
2241                 err = mlx4_dev_cap(dev, &dev_cap);
2242                 if (err) {
2243                         mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting\n");
2244                         return err;
2245                 }
2246
2247                 choose_steering_mode(dev, &dev_cap);
2248                 choose_tunnel_offload_mode(dev, &dev_cap);
2249
2250                 if (dev->caps.dmfs_high_steer_mode == MLX4_STEERING_DMFS_A0_STATIC &&
2251                     mlx4_is_master(dev))
2252                         dev->caps.function_caps |= MLX4_FUNC_CAP_DMFS_A0_STATIC;
2253
2254                 err = mlx4_get_phys_port_id(dev);
2255                 if (err)
2256                         mlx4_err(dev, "Fail to get physical port id\n");
2257
2258                 if (mlx4_is_master(dev))
2259                         mlx4_parav_master_pf_caps(dev);
2260
2261                 if (mlx4_low_memory_profile()) {
2262                         mlx4_info(dev, "Running from within kdump kernel. Using low memory profile\n");
2263                         profile = low_mem_profile;
2264                 } else {
2265                         profile = default_profile;
2266                 }
2267                 if (dev->caps.steering_mode ==
2268                     MLX4_STEERING_MODE_DEVICE_MANAGED)
2269                         profile.num_mcg = MLX4_FS_NUM_MCG;
2270
2271                 icm_size = mlx4_make_profile(dev, &profile, &dev_cap,
2272                                              &init_hca);
2273                 if ((long long) icm_size < 0) {
2274                         err = icm_size;
2275                         return err;
2276                 }
2277
2278                 dev->caps.max_fmr_maps = (1 << (32 - ilog2(dev->caps.num_mpts))) - 1;
2279
2280                 if (enable_4k_uar) {
2281                         init_hca.log_uar_sz = ilog2(dev->caps.num_uars) +
2282                                                     PAGE_SHIFT - DEFAULT_UAR_PAGE_SHIFT;
2283                         init_hca.uar_page_sz = DEFAULT_UAR_PAGE_SHIFT - 12;
2284                 } else {
2285                         init_hca.log_uar_sz = ilog2(dev->caps.num_uars);
2286                         init_hca.uar_page_sz = PAGE_SHIFT - 12;
2287                 }
2288
2289                 init_hca.mw_enabled = 0;
2290                 if (dev->caps.flags & MLX4_DEV_CAP_FLAG_MEM_WINDOW ||
2291                     dev->caps.bmme_flags & MLX4_BMME_FLAG_TYPE_2_WIN)
2292                         init_hca.mw_enabled = INIT_HCA_TPT_MW_ENABLE;
2293
2294                 err = mlx4_init_icm(dev, &dev_cap, &init_hca, icm_size);
2295                 if (err)
2296                         return err;
2297
2298                 err = mlx4_INIT_HCA(dev, &init_hca);
2299                 if (err) {
2300                         mlx4_err(dev, "INIT_HCA command failed, aborting\n");
2301                         goto err_free_icm;
2302                 }
2303
2304                 if (dev_cap.flags2 & MLX4_DEV_CAP_FLAG2_SYS_EQS) {
2305                         err = mlx4_query_func(dev, &dev_cap);
2306                         if (err < 0) {
2307                                 mlx4_err(dev, "QUERY_FUNC command failed, aborting.\n");
2308                                 goto err_close;
2309                         } else if (err & MLX4_QUERY_FUNC_NUM_SYS_EQS) {
2310                                 dev->caps.num_eqs = dev_cap.max_eqs;
2311                                 dev->caps.reserved_eqs = dev_cap.reserved_eqs;
2312                                 dev->caps.reserved_uars = dev_cap.reserved_uars;
2313                         }
2314                 }
2315
2316                 /*
2317                  * If TS is supported by FW
2318                  * read HCA frequency by QUERY_HCA command
2319                  */
2320                 if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS) {
2321                         memset(&init_hca, 0, sizeof(init_hca));
2322                         err = mlx4_QUERY_HCA(dev, &init_hca);
2323                         if (err) {
2324                                 mlx4_err(dev, "QUERY_HCA command failed, disable timestamp\n");
2325                                 dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_TS;
2326                         } else {
2327                                 dev->caps.hca_core_clock =
2328                                         init_hca.hca_core_clock;
2329                         }
2330
2331                         /* In case we got HCA frequency 0 - disable timestamping
2332                          * to avoid dividing by zero
2333                          */
2334                         if (!dev->caps.hca_core_clock) {
2335                                 dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_TS;
2336                                 mlx4_err(dev,
2337                                          "HCA frequency is 0 - timestamping is not supported\n");
2338                         } else if (map_internal_clock(dev)) {
2339                                 /*
2340                                  * Map internal clock,
2341                                  * in case of failure disable timestamping
2342                                  */
2343                                 dev->caps.flags2 &= ~MLX4_DEV_CAP_FLAG2_TS;
2344                                 mlx4_err(dev, "Failed to map internal clock. Timestamping is not supported\n");
2345                         }
2346                 }
2347
2348                 if (dev->caps.dmfs_high_steer_mode !=
2349                     MLX4_STEERING_DMFS_A0_NOT_SUPPORTED) {
2350                         if (mlx4_validate_optimized_steering(dev))
2351                                 mlx4_warn(dev, "Optimized steering validation failed\n");
2352
2353                         if (dev->caps.dmfs_high_steer_mode ==
2354                             MLX4_STEERING_DMFS_A0_DISABLE) {
2355                                 dev->caps.dmfs_high_rate_qpn_base =
2356                                         dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW];
2357                                 dev->caps.dmfs_high_rate_qpn_range =
2358                                         MLX4_A0_STEERING_TABLE_SIZE;
2359                         }
2360
2361                         mlx4_info(dev, "DMFS high rate steer mode is: %s\n",
2362                                   dmfs_high_rate_steering_mode_str(
2363                                         dev->caps.dmfs_high_steer_mode));
2364                 }
2365         } else {
2366                 err = mlx4_init_slave(dev);
2367                 if (err) {
2368                         if (err != -EPROBE_DEFER)
2369                                 mlx4_err(dev, "Failed to initialize slave\n");
2370                         return err;
2371                 }
2372
2373                 err = mlx4_slave_cap(dev);
2374                 if (err) {
2375                         mlx4_err(dev, "Failed to obtain slave caps\n");
2376                         goto err_close;
2377                 }
2378         }
2379
2380         if (map_bf_area(dev))
2381                 mlx4_dbg(dev, "Failed to map blue flame area\n");
2382
2383         /*Only the master set the ports, all the rest got it from it.*/
2384         if (!mlx4_is_slave(dev))
2385                 mlx4_set_port_mask(dev);
2386
2387         err = mlx4_QUERY_ADAPTER(dev, &adapter);
2388         if (err) {
2389                 mlx4_err(dev, "QUERY_ADAPTER command failed, aborting\n");
2390                 goto unmap_bf;
2391         }
2392
2393         /* Query CONFIG_DEV parameters */
2394         err = mlx4_config_dev_retrieval(dev, &params);
2395         if (err && err != -EOPNOTSUPP) {
2396                 mlx4_err(dev, "Failed to query CONFIG_DEV parameters\n");
2397         } else if (!err) {
2398                 dev->caps.rx_checksum_flags_port[1] = params.rx_csum_flags_port_1;
2399                 dev->caps.rx_checksum_flags_port[2] = params.rx_csum_flags_port_2;
2400         }
2401         priv->eq_table.inta_pin = adapter.inta_pin;
2402         memcpy(dev->board_id, adapter.board_id, sizeof dev->board_id);
2403
2404         return 0;
2405
2406 unmap_bf:
2407         unmap_internal_clock(dev);
2408         unmap_bf_area(dev);
2409
2410         if (mlx4_is_slave(dev)) {
2411                 kfree(dev->caps.qp0_qkey);
2412                 kfree(dev->caps.qp0_tunnel);
2413                 kfree(dev->caps.qp0_proxy);
2414                 kfree(dev->caps.qp1_tunnel);
2415                 kfree(dev->caps.qp1_proxy);
2416         }
2417
2418 err_close:
2419         if (mlx4_is_slave(dev))
2420                 mlx4_slave_exit(dev);
2421         else
2422                 mlx4_CLOSE_HCA(dev, 0);
2423
2424 err_free_icm:
2425         if (!mlx4_is_slave(dev))
2426                 mlx4_free_icms(dev);
2427
2428         return err;
2429 }
2430
2431 static int mlx4_init_counters_table(struct mlx4_dev *dev)
2432 {
2433         struct mlx4_priv *priv = mlx4_priv(dev);
2434         int nent_pow2;
2435
2436         if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS))
2437                 return -ENOENT;
2438
2439         if (!dev->caps.max_counters)
2440                 return -ENOSPC;
2441
2442         nent_pow2 = roundup_pow_of_two(dev->caps.max_counters);
2443         /* reserve last counter index for sink counter */
2444         return mlx4_bitmap_init(&priv->counters_bitmap, nent_pow2,
2445                                 nent_pow2 - 1, 0,
2446                                 nent_pow2 - dev->caps.max_counters + 1);
2447 }
2448
2449 static void mlx4_cleanup_counters_table(struct mlx4_dev *dev)
2450 {
2451         if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS))
2452                 return;
2453
2454         if (!dev->caps.max_counters)
2455                 return;
2456
2457         mlx4_bitmap_cleanup(&mlx4_priv(dev)->counters_bitmap);
2458 }
2459
2460 static void mlx4_cleanup_default_counters(struct mlx4_dev *dev)
2461 {
2462         struct mlx4_priv *priv = mlx4_priv(dev);
2463         int port;
2464
2465         for (port = 0; port < dev->caps.num_ports; port++)
2466                 if (priv->def_counter[port] != -1)
2467                         mlx4_counter_free(dev,  priv->def_counter[port]);
2468 }
2469
2470 static int mlx4_allocate_default_counters(struct mlx4_dev *dev)
2471 {
2472         struct mlx4_priv *priv = mlx4_priv(dev);
2473         int port, err = 0;
2474         u32 idx;
2475
2476         for (port = 0; port < dev->caps.num_ports; port++)
2477                 priv->def_counter[port] = -1;
2478
2479         for (port = 0; port < dev->caps.num_ports; port++) {
2480                 err = mlx4_counter_alloc(dev, &idx);
2481
2482                 if (!err || err == -ENOSPC) {
2483                         priv->def_counter[port] = idx;
2484                 } else if (err == -ENOENT) {
2485                         err = 0;
2486                         continue;
2487                 } else if (mlx4_is_slave(dev) && err == -EINVAL) {
2488                         priv->def_counter[port] = MLX4_SINK_COUNTER_INDEX(dev);
2489                         mlx4_warn(dev, "can't allocate counter from old PF driver, using index %d\n",
2490                                   MLX4_SINK_COUNTER_INDEX(dev));
2491                         err = 0;
2492                 } else {
2493                         mlx4_err(dev, "%s: failed to allocate default counter port %d err %d\n",
2494                                  __func__, port + 1, err);
2495                         mlx4_cleanup_default_counters(dev);
2496                         return err;
2497                 }
2498
2499                 mlx4_dbg(dev, "%s: default counter index %d for port %d\n",
2500                          __func__, priv->def_counter[port], port + 1);
2501         }
2502
2503         return err;
2504 }
2505
2506 int __mlx4_counter_alloc(struct mlx4_dev *dev, u32 *idx)
2507 {
2508         struct mlx4_priv *priv = mlx4_priv(dev);
2509
2510         if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS))
2511                 return -ENOENT;
2512
2513         *idx = mlx4_bitmap_alloc(&priv->counters_bitmap);
2514         if (*idx == -1) {
2515                 *idx = MLX4_SINK_COUNTER_INDEX(dev);
2516                 return -ENOSPC;
2517         }
2518
2519         return 0;
2520 }
2521
2522 int mlx4_counter_alloc(struct mlx4_dev *dev, u32 *idx)
2523 {
2524         u64 out_param;
2525         int err;
2526
2527         if (mlx4_is_mfunc(dev)) {
2528                 err = mlx4_cmd_imm(dev, 0, &out_param, RES_COUNTER,
2529                                    RES_OP_RESERVE, MLX4_CMD_ALLOC_RES,
2530                                    MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
2531                 if (!err)
2532                         *idx = get_param_l(&out_param);
2533
2534                 return err;
2535         }
2536         return __mlx4_counter_alloc(dev, idx);
2537 }
2538 EXPORT_SYMBOL_GPL(mlx4_counter_alloc);
2539
2540 static int __mlx4_clear_if_stat(struct mlx4_dev *dev,
2541                                 u8 counter_index)
2542 {
2543         struct mlx4_cmd_mailbox *if_stat_mailbox;
2544         int err;
2545         u32 if_stat_in_mod = (counter_index & 0xff) | MLX4_QUERY_IF_STAT_RESET;
2546
2547         if_stat_mailbox = mlx4_alloc_cmd_mailbox(dev);
2548         if (IS_ERR(if_stat_mailbox))
2549                 return PTR_ERR(if_stat_mailbox);
2550
2551         err = mlx4_cmd_box(dev, 0, if_stat_mailbox->dma, if_stat_in_mod, 0,
2552                            MLX4_CMD_QUERY_IF_STAT, MLX4_CMD_TIME_CLASS_C,
2553                            MLX4_CMD_NATIVE);
2554
2555         mlx4_free_cmd_mailbox(dev, if_stat_mailbox);
2556         return err;
2557 }
2558
2559 void __mlx4_counter_free(struct mlx4_dev *dev, u32 idx)
2560 {
2561         if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_COUNTERS))
2562                 return;
2563
2564         if (idx == MLX4_SINK_COUNTER_INDEX(dev))
2565                 return;
2566
2567         __mlx4_clear_if_stat(dev, idx);
2568
2569         mlx4_bitmap_free(&mlx4_priv(dev)->counters_bitmap, idx, MLX4_USE_RR);
2570         return;
2571 }
2572
2573 void mlx4_counter_free(struct mlx4_dev *dev, u32 idx)
2574 {
2575         u64 in_param = 0;
2576
2577         if (mlx4_is_mfunc(dev)) {
2578                 set_param_l(&in_param, idx);
2579                 mlx4_cmd(dev, in_param, RES_COUNTER, RES_OP_RESERVE,
2580                          MLX4_CMD_FREE_RES, MLX4_CMD_TIME_CLASS_A,
2581                          MLX4_CMD_WRAPPED);
2582                 return;
2583         }
2584         __mlx4_counter_free(dev, idx);
2585 }
2586 EXPORT_SYMBOL_GPL(mlx4_counter_free);
2587
2588 int mlx4_get_default_counter_index(struct mlx4_dev *dev, int port)
2589 {
2590         struct mlx4_priv *priv = mlx4_priv(dev);
2591
2592         return priv->def_counter[port - 1];
2593 }
2594 EXPORT_SYMBOL_GPL(mlx4_get_default_counter_index);
2595
2596 void mlx4_set_admin_guid(struct mlx4_dev *dev, __be64 guid, int entry, int port)
2597 {
2598         struct mlx4_priv *priv = mlx4_priv(dev);
2599
2600         priv->mfunc.master.vf_admin[entry].vport[port].guid = guid;
2601 }
2602 EXPORT_SYMBOL_GPL(mlx4_set_admin_guid);
2603
2604 __be64 mlx4_get_admin_guid(struct mlx4_dev *dev, int entry, int port)
2605 {
2606         struct mlx4_priv *priv = mlx4_priv(dev);
2607
2608         return priv->mfunc.master.vf_admin[entry].vport[port].guid;
2609 }
2610 EXPORT_SYMBOL_GPL(mlx4_get_admin_guid);
2611
2612 void mlx4_set_random_admin_guid(struct mlx4_dev *dev, int entry, int port)
2613 {
2614         struct mlx4_priv *priv = mlx4_priv(dev);
2615         __be64 guid;
2616
2617         /* hw GUID */
2618         if (entry == 0)
2619                 return;
2620
2621         get_random_bytes((char *)&guid, sizeof(guid));
2622         guid &= ~(cpu_to_be64(1ULL << 56));
2623         guid |= cpu_to_be64(1ULL << 57);
2624         priv->mfunc.master.vf_admin[entry].vport[port].guid = guid;
2625 }
2626
2627 static int mlx4_setup_hca(struct mlx4_dev *dev)
2628 {
2629         struct mlx4_priv *priv = mlx4_priv(dev);
2630         int err;
2631         int port;
2632         __be32 ib_port_default_caps;
2633
2634         err = mlx4_init_uar_table(dev);
2635         if (err) {
2636                 mlx4_err(dev, "Failed to initialize user access region table, aborting\n");
2637                 return err;
2638         }
2639
2640         err = mlx4_uar_alloc(dev, &priv->driver_uar);
2641         if (err) {
2642                 mlx4_err(dev, "Failed to allocate driver access region, aborting\n");
2643                 goto err_uar_table_free;
2644         }
2645
2646         priv->kar = ioremap((phys_addr_t) priv->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
2647         if (!priv->kar) {
2648                 mlx4_err(dev, "Couldn't map kernel access region, aborting\n");
2649                 err = -ENOMEM;
2650                 goto err_uar_free;
2651         }
2652
2653         err = mlx4_init_pd_table(dev);
2654         if (err) {
2655                 mlx4_err(dev, "Failed to initialize protection domain table, aborting\n");
2656                 goto err_kar_unmap;
2657         }
2658
2659         err = mlx4_init_xrcd_table(dev);
2660         if (err) {
2661                 mlx4_err(dev, "Failed to initialize reliable connection domain table, aborting\n");
2662                 goto err_pd_table_free;
2663         }
2664
2665         err = mlx4_init_mr_table(dev);
2666         if (err) {
2667                 mlx4_err(dev, "Failed to initialize memory region table, aborting\n");
2668                 goto err_xrcd_table_free;
2669         }
2670
2671         if (!mlx4_is_slave(dev)) {
2672                 err = mlx4_init_mcg_table(dev);
2673                 if (err) {
2674                         mlx4_err(dev, "Failed to initialize multicast group table, aborting\n");
2675                         goto err_mr_table_free;
2676                 }
2677                 err = mlx4_config_mad_demux(dev);
2678                 if (err) {
2679                         mlx4_err(dev, "Failed in config_mad_demux, aborting\n");
2680                         goto err_mcg_table_free;
2681                 }
2682         }
2683
2684         err = mlx4_init_eq_table(dev);
2685         if (err) {
2686                 mlx4_err(dev, "Failed to initialize event queue table, aborting\n");
2687                 goto err_mcg_table_free;
2688         }
2689
2690         err = mlx4_cmd_use_events(dev);
2691         if (err) {
2692                 mlx4_err(dev, "Failed to switch to event-driven firmware commands, aborting\n");
2693                 goto err_eq_table_free;
2694         }
2695
2696         err = mlx4_NOP(dev);
2697         if (err) {
2698                 if (dev->flags & MLX4_FLAG_MSI_X) {
2699                         mlx4_warn(dev, "NOP command failed to generate MSI-X interrupt IRQ %d)\n",
2700                                   priv->eq_table.eq[MLX4_EQ_ASYNC].irq);
2701                         mlx4_warn(dev, "Trying again without MSI-X\n");
2702                 } else {
2703                         mlx4_err(dev, "NOP command failed to generate interrupt (IRQ %d), aborting\n",
2704                                  priv->eq_table.eq[MLX4_EQ_ASYNC].irq);
2705                         mlx4_err(dev, "BIOS or ACPI interrupt routing problem?\n");
2706                 }
2707
2708                 goto err_cmd_poll;
2709         }
2710
2711         mlx4_dbg(dev, "NOP command IRQ test passed\n");
2712
2713         err = mlx4_init_cq_table(dev);
2714         if (err) {
2715                 mlx4_err(dev, "Failed to initialize completion queue table, aborting\n");
2716                 goto err_cmd_poll;
2717         }
2718
2719         err = mlx4_init_srq_table(dev);
2720         if (err) {
2721                 mlx4_err(dev, "Failed to initialize shared receive queue table, aborting\n");
2722                 goto err_cq_table_free;
2723         }
2724
2725         err = mlx4_init_qp_table(dev);
2726         if (err) {
2727                 mlx4_err(dev, "Failed to initialize queue pair table, aborting\n");
2728                 goto err_srq_table_free;
2729         }
2730
2731         if (!mlx4_is_slave(dev)) {
2732                 err = mlx4_init_counters_table(dev);
2733                 if (err && err != -ENOENT) {
2734                         mlx4_err(dev, "Failed to initialize counters table, aborting\n");
2735                         goto err_qp_table_free;
2736                 }
2737         }
2738
2739         err = mlx4_allocate_default_counters(dev);
2740         if (err) {
2741                 mlx4_err(dev, "Failed to allocate default counters, aborting\n");
2742                 goto err_counters_table_free;
2743         }
2744
2745         if (!mlx4_is_slave(dev)) {
2746                 for (port = 1; port <= dev->caps.num_ports; port++) {
2747                         ib_port_default_caps = 0;
2748                         err = mlx4_get_port_ib_caps(dev, port,
2749                                                     &ib_port_default_caps);
2750                         if (err)
2751                                 mlx4_warn(dev, "failed to get port %d default ib capabilities (%d). Continuing with caps = 0\n",
2752                                           port, err);
2753                         dev->caps.ib_port_def_cap[port] = ib_port_default_caps;
2754
2755                         /* initialize per-slave default ib port capabilities */
2756                         if (mlx4_is_master(dev)) {
2757                                 int i;
2758                                 for (i = 0; i < dev->num_slaves; i++) {
2759                                         if (i == mlx4_master_func_num(dev))
2760                                                 continue;
2761                                         priv->mfunc.master.slave_state[i].ib_cap_mask[port] =
2762                                                 ib_port_default_caps;
2763                                 }
2764                         }
2765
2766                         if (mlx4_is_mfunc(dev))
2767                                 dev->caps.port_ib_mtu[port] = IB_MTU_2048;
2768                         else
2769                                 dev->caps.port_ib_mtu[port] = IB_MTU_4096;
2770
2771                         err = mlx4_SET_PORT(dev, port, mlx4_is_master(dev) ?
2772                                             dev->caps.pkey_table_len[port] : -1);
2773                         if (err) {
2774                                 mlx4_err(dev, "Failed to set port %d, aborting\n",
2775                                          port);
2776                                 goto err_default_countes_free;
2777                         }
2778                 }
2779         }
2780
2781         return 0;
2782
2783 err_default_countes_free:
2784         mlx4_cleanup_default_counters(dev);
2785
2786 err_counters_table_free:
2787         if (!mlx4_is_slave(dev))
2788                 mlx4_cleanup_counters_table(dev);
2789
2790 err_qp_table_free:
2791         mlx4_cleanup_qp_table(dev);
2792
2793 err_srq_table_free:
2794         mlx4_cleanup_srq_table(dev);
2795
2796 err_cq_table_free:
2797         mlx4_cleanup_cq_table(dev);
2798
2799 err_cmd_poll:
2800         mlx4_cmd_use_polling(dev);
2801
2802 err_eq_table_free:
2803         mlx4_cleanup_eq_table(dev);
2804
2805 err_mcg_table_free:
2806         if (!mlx4_is_slave(dev))
2807                 mlx4_cleanup_mcg_table(dev);
2808
2809 err_mr_table_free:
2810         mlx4_cleanup_mr_table(dev);
2811
2812 err_xrcd_table_free:
2813         mlx4_cleanup_xrcd_table(dev);
2814
2815 err_pd_table_free:
2816         mlx4_cleanup_pd_table(dev);
2817
2818 err_kar_unmap:
2819         iounmap(priv->kar);
2820
2821 err_uar_free:
2822         mlx4_uar_free(dev, &priv->driver_uar);
2823
2824 err_uar_table_free:
2825         mlx4_cleanup_uar_table(dev);
2826         return err;
2827 }
2828
2829 static int mlx4_init_affinity_hint(struct mlx4_dev *dev, int port, int eqn)
2830 {
2831         int requested_cpu = 0;
2832         struct mlx4_priv *priv = mlx4_priv(dev);
2833         struct mlx4_eq *eq;
2834         int off = 0;
2835         int i;
2836
2837         if (eqn > dev->caps.num_comp_vectors)
2838                 return -EINVAL;
2839
2840         for (i = 1; i < port; i++)
2841                 off += mlx4_get_eqs_per_port(dev, i);
2842
2843         requested_cpu = eqn - off - !!(eqn > MLX4_EQ_ASYNC);
2844
2845         /* Meaning EQs are shared, and this call comes from the second port */
2846         if (requested_cpu < 0)
2847                 return 0;
2848
2849         eq = &priv->eq_table.eq[eqn];
2850
2851         if (!zalloc_cpumask_var(&eq->affinity_mask, GFP_KERNEL))
2852                 return -ENOMEM;
2853
2854         cpumask_set_cpu(requested_cpu, eq->affinity_mask);
2855
2856         return 0;
2857 }
2858
2859 static void mlx4_enable_msi_x(struct mlx4_dev *dev)
2860 {
2861         struct mlx4_priv *priv = mlx4_priv(dev);
2862         struct msix_entry *entries;
2863         int i;
2864         int port = 0;
2865
2866         if (msi_x) {
2867                 int nreq = min3(dev->caps.num_ports *
2868                                 (int)num_online_cpus() + 1,
2869                                 dev->caps.num_eqs - dev->caps.reserved_eqs,
2870                                 MAX_MSIX);
2871
2872                 entries = kcalloc(nreq, sizeof *entries, GFP_KERNEL);
2873                 if (!entries)
2874                         goto no_msi;
2875
2876                 for (i = 0; i < nreq; ++i)
2877                         entries[i].entry = i;
2878
2879                 nreq = pci_enable_msix_range(dev->persist->pdev, entries, 2,
2880                                              nreq);
2881
2882                 if (nreq < 0 || nreq < MLX4_EQ_ASYNC) {
2883                         kfree(entries);
2884                         goto no_msi;
2885                 }
2886                 /* 1 is reserved for events (asyncrounous EQ) */
2887                 dev->caps.num_comp_vectors = nreq - 1;
2888
2889                 priv->eq_table.eq[MLX4_EQ_ASYNC].irq = entries[0].vector;
2890                 bitmap_zero(priv->eq_table.eq[MLX4_EQ_ASYNC].actv_ports.ports,
2891                             dev->caps.num_ports);
2892
2893                 for (i = 0; i < dev->caps.num_comp_vectors + 1; i++) {
2894                         if (i == MLX4_EQ_ASYNC)
2895                                 continue;
2896
2897                         priv->eq_table.eq[i].irq =
2898                                 entries[i + 1 - !!(i > MLX4_EQ_ASYNC)].vector;
2899
2900                         if (MLX4_IS_LEGACY_EQ_MODE(dev->caps)) {
2901                                 bitmap_fill(priv->eq_table.eq[i].actv_ports.ports,
2902                                             dev->caps.num_ports);
2903                                 /* We don't set affinity hint when there
2904                                  * aren't enough EQs
2905                                  */
2906                         } else {
2907                                 set_bit(port,
2908                                         priv->eq_table.eq[i].actv_ports.ports);
2909                                 if (mlx4_init_affinity_hint(dev, port + 1, i))
2910                                         mlx4_warn(dev, "Couldn't init hint cpumask for EQ %d\n",
2911                                                   i);
2912                         }
2913                         /* We divide the Eqs evenly between the two ports.
2914                          * (dev->caps.num_comp_vectors / dev->caps.num_ports)
2915                          * refers to the number of Eqs per port
2916                          * (i.e eqs_per_port). Theoretically, we would like to
2917                          * write something like (i + 1) % eqs_per_port == 0.
2918                          * However, since there's an asynchronous Eq, we have
2919                          * to skip over it by comparing this condition to
2920                          * !!((i + 1) > MLX4_EQ_ASYNC).
2921                          */
2922                         if ((dev->caps.num_comp_vectors > dev->caps.num_ports) &&
2923                             ((i + 1) %
2924                              (dev->caps.num_comp_vectors / dev->caps.num_ports)) ==
2925                             !!((i + 1) > MLX4_EQ_ASYNC))
2926                                 /* If dev->caps.num_comp_vectors < dev->caps.num_ports,
2927                                  * everything is shared anyway.
2928                                  */
2929                                 port++;
2930                 }
2931
2932                 dev->flags |= MLX4_FLAG_MSI_X;
2933
2934                 kfree(entries);
2935                 return;
2936         }
2937
2938 no_msi:
2939         dev->caps.num_comp_vectors = 1;
2940
2941         BUG_ON(MLX4_EQ_ASYNC >= 2);
2942         for (i = 0; i < 2; ++i) {
2943                 priv->eq_table.eq[i].irq = dev->persist->pdev->irq;
2944                 if (i != MLX4_EQ_ASYNC) {
2945                         bitmap_fill(priv->eq_table.eq[i].actv_ports.ports,
2946                                     dev->caps.num_ports);
2947                 }
2948         }
2949 }
2950
2951 static int mlx4_init_port_info(struct mlx4_dev *dev, int port)
2952 {
2953         struct devlink *devlink = priv_to_devlink(mlx4_priv(dev));
2954         struct mlx4_port_info *info = &mlx4_priv(dev)->port[port];
2955         int err;
2956
2957         err = devlink_port_register(devlink, &info->devlink_port, port);
2958         if (err)
2959                 return err;
2960
2961         info->dev = dev;
2962         info->port = port;
2963         if (!mlx4_is_slave(dev)) {
2964                 mlx4_init_mac_table(dev, &info->mac_table);
2965                 mlx4_init_vlan_table(dev, &info->vlan_table);
2966                 mlx4_init_roce_gid_table(dev, &info->gid_table);
2967                 info->base_qpn = mlx4_get_base_qpn(dev, port);
2968         }
2969
2970         sprintf(info->dev_name, "mlx4_port%d", port);
2971         info->port_attr.attr.name = info->dev_name;
2972         if (mlx4_is_mfunc(dev))
2973                 info->port_attr.attr.mode = S_IRUGO;
2974         else {
2975                 info->port_attr.attr.mode = S_IRUGO | S_IWUSR;
2976                 info->port_attr.store     = set_port_type;
2977         }
2978         info->port_attr.show      = show_port_type;
2979         sysfs_attr_init(&info->port_attr.attr);
2980
2981         err = device_create_file(&dev->persist->pdev->dev, &info->port_attr);
2982         if (err) {
2983                 mlx4_err(dev, "Failed to create file for port %d\n", port);
2984                 devlink_port_unregister(&info->devlink_port);
2985                 info->port = -1;
2986         }
2987
2988         sprintf(info->dev_mtu_name, "mlx4_port%d_mtu", port);
2989         info->port_mtu_attr.attr.name = info->dev_mtu_name;
2990         if (mlx4_is_mfunc(dev))
2991                 info->port_mtu_attr.attr.mode = S_IRUGO;
2992         else {
2993                 info->port_mtu_attr.attr.mode = S_IRUGO | S_IWUSR;
2994                 info->port_mtu_attr.store     = set_port_ib_mtu;
2995         }
2996         info->port_mtu_attr.show      = show_port_ib_mtu;
2997         sysfs_attr_init(&info->port_mtu_attr.attr);
2998
2999         err = device_create_file(&dev->persist->pdev->dev,
3000                                  &info->port_mtu_attr);
3001         if (err) {
3002                 mlx4_err(dev, "Failed to create mtu file for port %d\n", port);
3003                 device_remove_file(&info->dev->persist->pdev->dev,
3004                                    &info->port_attr);
3005                 devlink_port_unregister(&info->devlink_port);
3006                 info->port = -1;
3007         }
3008
3009         return err;
3010 }
3011
3012 static void mlx4_cleanup_port_info(struct mlx4_port_info *info)
3013 {
3014         if (info->port < 0)
3015                 return;
3016
3017         device_remove_file(&info->dev->persist->pdev->dev, &info->port_attr);
3018         device_remove_file(&info->dev->persist->pdev->dev,
3019                            &info->port_mtu_attr);
3020         devlink_port_unregister(&info->devlink_port);
3021
3022 #ifdef CONFIG_RFS_ACCEL
3023         free_irq_cpu_rmap(info->rmap);
3024         info->rmap = NULL;
3025 #endif
3026 }
3027
3028 static int mlx4_init_steering(struct mlx4_dev *dev)
3029 {
3030         struct mlx4_priv *priv = mlx4_priv(dev);
3031         int num_entries = dev->caps.num_ports;
3032         int i, j;
3033
3034         priv->steer = kzalloc(sizeof(struct mlx4_steer) * num_entries, GFP_KERNEL);
3035         if (!priv->steer)
3036                 return -ENOMEM;
3037
3038         for (i = 0; i < num_entries; i++)
3039                 for (j = 0; j < MLX4_NUM_STEERS; j++) {
3040                         INIT_LIST_HEAD(&priv->steer[i].promisc_qps[j]);
3041                         INIT_LIST_HEAD(&priv->steer[i].steer_entries[j]);
3042                 }
3043         return 0;
3044 }
3045
3046 static void mlx4_clear_steering(struct mlx4_dev *dev)
3047 {
3048         struct mlx4_priv *priv = mlx4_priv(dev);
3049         struct mlx4_steer_index *entry, *tmp_entry;
3050         struct mlx4_promisc_qp *pqp, *tmp_pqp;
3051         int num_entries = dev->caps.num_ports;
3052         int i, j;
3053
3054         for (i = 0; i < num_entries; i++) {
3055                 for (j = 0; j < MLX4_NUM_STEERS; j++) {
3056                         list_for_each_entry_safe(pqp, tmp_pqp,
3057                                                  &priv->steer[i].promisc_qps[j],
3058                                                  list) {
3059                                 list_del(&pqp->list);
3060                                 kfree(pqp);
3061                         }
3062                         list_for_each_entry_safe(entry, tmp_entry,
3063                                                  &priv->steer[i].steer_entries[j],
3064                                                  list) {
3065                                 list_del(&entry->list);
3066                                 list_for_each_entry_safe(pqp, tmp_pqp,
3067                                                          &entry->duplicates,
3068                                                          list) {
3069                                         list_del(&pqp->list);
3070                                         kfree(pqp);
3071                                 }
3072                                 kfree(entry);
3073                         }
3074                 }
3075         }
3076         kfree(priv->steer);
3077 }
3078
3079 static int extended_func_num(struct pci_dev *pdev)
3080 {
3081         return PCI_SLOT(pdev->devfn) * 8 + PCI_FUNC(pdev->devfn);
3082 }
3083
3084 #define MLX4_OWNER_BASE 0x8069c
3085 #define MLX4_OWNER_SIZE 4
3086
3087 static int mlx4_get_ownership(struct mlx4_dev *dev)
3088 {
3089         void __iomem *owner;
3090         u32 ret;
3091
3092         if (pci_channel_offline(dev->persist->pdev))
3093                 return -EIO;
3094
3095         owner = ioremap(pci_resource_start(dev->persist->pdev, 0) +
3096                         MLX4_OWNER_BASE,
3097                         MLX4_OWNER_SIZE);
3098         if (!owner) {
3099                 mlx4_err(dev, "Failed to obtain ownership bit\n");
3100                 return -ENOMEM;
3101         }
3102
3103         ret = readl(owner);
3104         iounmap(owner);
3105         return (int) !!ret;
3106 }
3107
3108 static void mlx4_free_ownership(struct mlx4_dev *dev)
3109 {
3110         void __iomem *owner;
3111
3112         if (pci_channel_offline(dev->persist->pdev))
3113                 return;
3114
3115         owner = ioremap(pci_resource_start(dev->persist->pdev, 0) +
3116                         MLX4_OWNER_BASE,
3117                         MLX4_OWNER_SIZE);
3118         if (!owner) {
3119                 mlx4_err(dev, "Failed to obtain ownership bit\n");
3120                 return;
3121         }
3122         writel(0, owner);
3123         msleep(1000);
3124         iounmap(owner);
3125 }
3126
3127 #define SRIOV_VALID_STATE(flags) (!!((flags) & MLX4_FLAG_SRIOV) ==\
3128                                   !!((flags) & MLX4_FLAG_MASTER))
3129
3130 static u64 mlx4_enable_sriov(struct mlx4_dev *dev, struct pci_dev *pdev,
3131                              u8 total_vfs, int existing_vfs, int reset_flow)
3132 {
3133         u64 dev_flags = dev->flags;
3134         int err = 0;
3135         int fw_enabled_sriov_vfs = min(pci_sriov_get_totalvfs(pdev),
3136                                         MLX4_MAX_NUM_VF);
3137
3138         if (reset_flow) {
3139                 dev->dev_vfs = kcalloc(total_vfs, sizeof(*dev->dev_vfs),
3140                                        GFP_KERNEL);
3141                 if (!dev->dev_vfs)
3142                         goto free_mem;
3143                 return dev_flags;
3144         }
3145
3146         atomic_inc(&pf_loading);
3147         if (dev->flags &  MLX4_FLAG_SRIOV) {
3148                 if (existing_vfs != total_vfs) {
3149                         mlx4_err(dev, "SR-IOV was already enabled, but with num_vfs (%d) different than requested (%d)\n",
3150                                  existing_vfs, total_vfs);
3151                         total_vfs = existing_vfs;
3152                 }
3153         }
3154
3155         dev->dev_vfs = kzalloc(total_vfs * sizeof(*dev->dev_vfs), GFP_KERNEL);
3156         if (NULL == dev->dev_vfs) {
3157                 mlx4_err(dev, "Failed to allocate memory for VFs\n");
3158                 goto disable_sriov;
3159         }
3160
3161         if (!(dev->flags &  MLX4_FLAG_SRIOV)) {
3162                 if (total_vfs > fw_enabled_sriov_vfs) {
3163                         mlx4_err(dev, "requested vfs (%d) > available vfs (%d). Continuing without SR_IOV\n",
3164                                  total_vfs, fw_enabled_sriov_vfs);
3165                         err = -ENOMEM;
3166                         goto disable_sriov;
3167                 }
3168                 mlx4_warn(dev, "Enabling SR-IOV with %d VFs\n", total_vfs);
3169                 err = pci_enable_sriov(pdev, total_vfs);
3170         }
3171         if (err) {
3172                 mlx4_err(dev, "Failed to enable SR-IOV, continuing without SR-IOV (err = %d)\n",
3173                          err);
3174                 goto disable_sriov;
3175         } else {
3176                 mlx4_warn(dev, "Running in master mode\n");
3177                 dev_flags |= MLX4_FLAG_SRIOV |
3178                         MLX4_FLAG_MASTER;
3179                 dev_flags &= ~MLX4_FLAG_SLAVE;
3180                 dev->persist->num_vfs = total_vfs;
3181         }
3182         return dev_flags;
3183
3184 disable_sriov:
3185         atomic_dec(&pf_loading);
3186 free_mem:
3187         dev->persist->num_vfs = 0;
3188         kfree(dev->dev_vfs);
3189         dev->dev_vfs = NULL;
3190         return dev_flags & ~MLX4_FLAG_MASTER;
3191 }
3192
3193 enum {
3194         MLX4_DEV_CAP_CHECK_NUM_VFS_ABOVE_64 = -1,
3195 };
3196
3197 static int mlx4_check_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap,
3198                               int *nvfs)
3199 {
3200         int requested_vfs = nvfs[0] + nvfs[1] + nvfs[2];
3201         /* Checking for 64 VFs as a limitation of CX2 */
3202         if (!(dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_80_VFS) &&
3203             requested_vfs >= 64) {
3204                 mlx4_err(dev, "Requested %d VFs, but FW does not support more than 64\n",
3205                          requested_vfs);
3206                 return MLX4_DEV_CAP_CHECK_NUM_VFS_ABOVE_64;
3207         }
3208         return 0;
3209 }
3210
3211 static int mlx4_pci_enable_device(struct mlx4_dev *dev)
3212 {
3213         struct pci_dev *pdev = dev->persist->pdev;
3214         int err = 0;
3215
3216         mutex_lock(&dev->persist->pci_status_mutex);
3217         if (dev->persist->pci_status == MLX4_PCI_STATUS_DISABLED) {
3218                 err = pci_enable_device(pdev);
3219                 if (!err)
3220                         dev->persist->pci_status = MLX4_PCI_STATUS_ENABLED;
3221         }
3222         mutex_unlock(&dev->persist->pci_status_mutex);
3223
3224         return err;
3225 }
3226
3227 static void mlx4_pci_disable_device(struct mlx4_dev *dev)
3228 {
3229         struct pci_dev *pdev = dev->persist->pdev;
3230
3231         mutex_lock(&dev->persist->pci_status_mutex);
3232         if (dev->persist->pci_status == MLX4_PCI_STATUS_ENABLED) {
3233                 pci_disable_device(pdev);
3234                 dev->persist->pci_status = MLX4_PCI_STATUS_DISABLED;
3235         }
3236         mutex_unlock(&dev->persist->pci_status_mutex);
3237 }
3238
3239 static int mlx4_load_one(struct pci_dev *pdev, int pci_dev_data,
3240                          int total_vfs, int *nvfs, struct mlx4_priv *priv,
3241                          int reset_flow)
3242 {
3243         struct mlx4_dev *dev;
3244         unsigned sum = 0;
3245         int err;
3246         int port;
3247         int i;
3248         struct mlx4_dev_cap *dev_cap = NULL;
3249         int existing_vfs = 0;
3250
3251         dev = &priv->dev;
3252
3253         INIT_LIST_HEAD(&priv->ctx_list);
3254         spin_lock_init(&priv->ctx_lock);
3255
3256         mutex_init(&priv->port_mutex);
3257         mutex_init(&priv->bond_mutex);
3258
3259         INIT_LIST_HEAD(&priv->pgdir_list);
3260         mutex_init(&priv->pgdir_mutex);
3261         spin_lock_init(&priv->cmd.context_lock);
3262
3263         INIT_LIST_HEAD(&priv->bf_list);
3264         mutex_init(&priv->bf_mutex);
3265
3266         dev->rev_id = pdev->revision;
3267         dev->numa_node = dev_to_node(&pdev->dev);
3268
3269         /* Detect if this device is a virtual function */
3270         if (pci_dev_data & MLX4_PCI_DEV_IS_VF) {
3271                 mlx4_warn(dev, "Detected virtual function - running in slave mode\n");
3272                 dev->flags |= MLX4_FLAG_SLAVE;
3273         } else {
3274                 /* We reset the device and enable SRIOV only for physical
3275                  * devices.  Try to claim ownership on the device;
3276                  * if already taken, skip -- do not allow multiple PFs */
3277                 err = mlx4_get_ownership(dev);
3278                 if (err) {
3279                         if (err < 0)
3280                                 return err;
3281                         else {
3282                                 mlx4_warn(dev, "Multiple PFs not yet supported - Skipping PF\n");
3283                                 return -EINVAL;
3284                         }
3285                 }
3286
3287                 atomic_set(&priv->opreq_count, 0);
3288                 INIT_WORK(&priv->opreq_task, mlx4_opreq_action);
3289
3290                 /*
3291                  * Now reset the HCA before we touch the PCI capabilities or
3292                  * attempt a firmware command, since a boot ROM may have left
3293                  * the HCA in an undefined state.
3294                  */
3295                 err = mlx4_reset(dev);
3296                 if (err) {
3297                         mlx4_err(dev, "Failed to reset HCA, aborting\n");
3298                         goto err_sriov;
3299                 }
3300
3301                 if (total_vfs) {
3302                         dev->flags = MLX4_FLAG_MASTER;
3303                         existing_vfs = pci_num_vf(pdev);
3304                         if (existing_vfs)
3305                                 dev->flags |= MLX4_FLAG_SRIOV;
3306                         dev->persist->num_vfs = total_vfs;
3307                 }
3308         }
3309
3310         /* on load remove any previous indication of internal error,
3311          * device is up.
3312          */
3313         dev->persist->state = MLX4_DEVICE_STATE_UP;
3314
3315 slave_start:
3316         err = mlx4_cmd_init(dev);
3317         if (err) {
3318                 mlx4_err(dev, "Failed to init command interface, aborting\n");
3319                 goto err_sriov;
3320         }
3321
3322         /* In slave functions, the communication channel must be initialized
3323          * before posting commands. Also, init num_slaves before calling
3324          * mlx4_init_hca */
3325         if (mlx4_is_mfunc(dev)) {
3326                 if (mlx4_is_master(dev)) {
3327                         dev->num_slaves = MLX4_MAX_NUM_SLAVES;
3328
3329                 } else {
3330                         dev->num_slaves = 0;
3331                         err = mlx4_multi_func_init(dev);
3332                         if (err) {
3333                                 mlx4_err(dev, "Failed to init slave mfunc interface, aborting\n");
3334                                 goto err_cmd;
3335                         }
3336                 }
3337         }
3338
3339         err = mlx4_init_fw(dev);
3340         if (err) {
3341                 mlx4_err(dev, "Failed to init fw, aborting.\n");
3342                 goto err_mfunc;
3343         }
3344
3345         if (mlx4_is_master(dev)) {
3346                 /* when we hit the goto slave_start below, dev_cap already initialized */
3347                 if (!dev_cap) {
3348                         dev_cap = kzalloc(sizeof(*dev_cap), GFP_KERNEL);
3349
3350                         if (!dev_cap) {
3351                                 err = -ENOMEM;
3352                                 goto err_fw;
3353                         }
3354
3355                         err = mlx4_QUERY_DEV_CAP(dev, dev_cap);
3356                         if (err) {
3357                                 mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
3358                                 goto err_fw;
3359                         }
3360
3361                         if (mlx4_check_dev_cap(dev, dev_cap, nvfs))
3362                                 goto err_fw;
3363
3364                         if (!(dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_SYS_EQS)) {
3365                                 u64 dev_flags = mlx4_enable_sriov(dev, pdev,
3366                                                                   total_vfs,
3367                                                                   existing_vfs,
3368                                                                   reset_flow);
3369
3370                                 mlx4_close_fw(dev);
3371                                 mlx4_cmd_cleanup(dev, MLX4_CMD_CLEANUP_ALL);
3372                                 dev->flags = dev_flags;
3373                                 if (!SRIOV_VALID_STATE(dev->flags)) {
3374                                         mlx4_err(dev, "Invalid SRIOV state\n");
3375                                         goto err_sriov;
3376                                 }
3377                                 err = mlx4_reset(dev);
3378                                 if (err) {
3379                                         mlx4_err(dev, "Failed to reset HCA, aborting.\n");
3380                                         goto err_sriov;
3381                                 }
3382                                 goto slave_start;
3383                         }
3384                 } else {
3385                         /* Legacy mode FW requires SRIOV to be enabled before
3386                          * doing QUERY_DEV_CAP, since max_eq's value is different if
3387                          * SRIOV is enabled.
3388                          */
3389                         memset(dev_cap, 0, sizeof(*dev_cap));
3390                         err = mlx4_QUERY_DEV_CAP(dev, dev_cap);
3391                         if (err) {
3392                                 mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
3393                                 goto err_fw;
3394                         }
3395
3396                         if (mlx4_check_dev_cap(dev, dev_cap, nvfs))
3397                                 goto err_fw;
3398                 }
3399         }
3400
3401         err = mlx4_init_hca(dev);
3402         if (err) {
3403                 if (err == -EACCES) {
3404                         /* Not primary Physical function
3405                          * Running in slave mode */
3406                         mlx4_cmd_cleanup(dev, MLX4_CMD_CLEANUP_ALL);
3407                         /* We're not a PF */
3408                         if (dev->flags & MLX4_FLAG_SRIOV) {
3409                                 if (!existing_vfs)
3410                                         pci_disable_sriov(pdev);
3411                                 if (mlx4_is_master(dev) && !reset_flow)
3412                                         atomic_dec(&pf_loading);
3413                                 dev->flags &= ~MLX4_FLAG_SRIOV;
3414                         }
3415                         if (!mlx4_is_slave(dev))
3416                                 mlx4_free_ownership(dev);
3417                         dev->flags |= MLX4_FLAG_SLAVE;
3418                         dev->flags &= ~MLX4_FLAG_MASTER;
3419                         goto slave_start;
3420                 } else
3421                         goto err_fw;
3422         }
3423
3424         if (mlx4_is_master(dev) && (dev_cap->flags2 & MLX4_DEV_CAP_FLAG2_SYS_EQS)) {
3425                 u64 dev_flags = mlx4_enable_sriov(dev, pdev, total_vfs,
3426                                                   existing_vfs, reset_flow);
3427
3428                 if ((dev->flags ^ dev_flags) & (MLX4_FLAG_MASTER | MLX4_FLAG_SLAVE)) {
3429                         mlx4_cmd_cleanup(dev, MLX4_CMD_CLEANUP_VHCR);
3430                         dev->flags = dev_flags;
3431                         err = mlx4_cmd_init(dev);
3432                         if (err) {
3433                                 /* Only VHCR is cleaned up, so could still
3434                                  * send FW commands
3435                                  */
3436                                 mlx4_err(dev, "Failed to init VHCR command interface, aborting\n");
3437                                 goto err_close;
3438                         }
3439                 } else {
3440                         dev->flags = dev_flags;
3441                 }
3442
3443                 if (!SRIOV_VALID_STATE(dev->flags)) {
3444                         mlx4_err(dev, "Invalid SRIOV state\n");
3445                         goto err_close;
3446                 }
3447         }
3448
3449         /* check if the device is functioning at its maximum possible speed.
3450          * No return code for this call, just warn the user in case of PCI
3451          * express device capabilities are under-satisfied by the bus.
3452          */
3453         if (!mlx4_is_slave(dev))
3454                 mlx4_check_pcie_caps(dev);
3455
3456         /* In master functions, the communication channel must be initialized
3457          * after obtaining its address from fw */
3458         if (mlx4_is_master(dev)) {
3459                 if (dev->caps.num_ports < 2 &&
3460                     num_vfs_argc > 1) {
3461                         err = -EINVAL;
3462                         mlx4_err(dev,
3463                                  "Error: Trying to configure VFs on port 2, but HCA has only %d physical ports\n",
3464                                  dev->caps.num_ports);
3465                         goto err_close;
3466                 }
3467                 memcpy(dev->persist->nvfs, nvfs, sizeof(dev->persist->nvfs));
3468
3469                 for (i = 0;
3470                      i < sizeof(dev->persist->nvfs)/
3471                      sizeof(dev->persist->nvfs[0]); i++) {
3472                         unsigned j;
3473
3474                         for (j = 0; j < dev->persist->nvfs[i]; ++sum, ++j) {
3475                                 dev->dev_vfs[sum].min_port = i < 2 ? i + 1 : 1;
3476                                 dev->dev_vfs[sum].n_ports = i < 2 ? 1 :
3477                                         dev->caps.num_ports;
3478                         }
3479                 }
3480
3481                 /* In master functions, the communication channel
3482                  * must be initialized after obtaining its address from fw
3483                  */
3484                 err = mlx4_multi_func_init(dev);
3485                 if (err) {
3486                         mlx4_err(dev, "Failed to init master mfunc interface, aborting.\n");
3487                         goto err_close;
3488                 }
3489         }
3490
3491         err = mlx4_alloc_eq_table(dev);
3492         if (err)
3493                 goto err_master_mfunc;
3494
3495         bitmap_zero(priv->msix_ctl.pool_bm, MAX_MSIX);
3496         mutex_init(&priv->msix_ctl.pool_lock);
3497
3498         mlx4_enable_msi_x(dev);
3499         if ((mlx4_is_mfunc(dev)) &&
3500             !(dev->flags & MLX4_FLAG_MSI_X)) {
3501                 err = -EOPNOTSUPP;
3502                 mlx4_err(dev, "INTx is not supported in multi-function mode, aborting\n");
3503                 goto err_free_eq;
3504         }
3505
3506         if (!mlx4_is_slave(dev)) {
3507                 err = mlx4_init_steering(dev);
3508                 if (err)
3509                         goto err_disable_msix;
3510         }
3511
3512         mlx4_init_quotas(dev);
3513
3514         err = mlx4_setup_hca(dev);
3515         if (err == -EBUSY && (dev->flags & MLX4_FLAG_MSI_X) &&
3516             !mlx4_is_mfunc(dev)) {
3517                 dev->flags &= ~MLX4_FLAG_MSI_X;
3518                 dev->caps.num_comp_vectors = 1;
3519                 pci_disable_msix(pdev);
3520                 err = mlx4_setup_hca(dev);
3521         }
3522
3523         if (err)
3524                 goto err_steer;
3525
3526         /* When PF resources are ready arm its comm channel to enable
3527          * getting commands
3528          */
3529         if (mlx4_is_master(dev)) {
3530                 err = mlx4_ARM_COMM_CHANNEL(dev);
3531                 if (err) {
3532                         mlx4_err(dev, " Failed to arm comm channel eq: %x\n",
3533                                  err);
3534                         goto err_steer;
3535                 }
3536         }
3537
3538         for (port = 1; port <= dev->caps.num_ports; port++) {
3539                 err = mlx4_init_port_info(dev, port);
3540                 if (err)
3541                         goto err_port;
3542         }
3543
3544         priv->v2p.port1 = 1;
3545         priv->v2p.port2 = 2;
3546
3547         err = mlx4_register_device(dev);
3548         if (err)
3549                 goto err_port;
3550
3551         mlx4_request_modules(dev);
3552
3553         mlx4_sense_init(dev);
3554         mlx4_start_sense(dev);
3555
3556         priv->removed = 0;
3557
3558         if (mlx4_is_master(dev) && dev->persist->num_vfs && !reset_flow)
3559                 atomic_dec(&pf_loading);
3560
3561         kfree(dev_cap);
3562         return 0;
3563
3564 err_port:
3565         for (--port; port >= 1; --port)
3566                 mlx4_cleanup_port_info(&priv->port[port]);
3567
3568         mlx4_cleanup_default_counters(dev);
3569         if (!mlx4_is_slave(dev))
3570                 mlx4_cleanup_counters_table(dev);
3571         mlx4_cleanup_qp_table(dev);
3572         mlx4_cleanup_srq_table(dev);
3573         mlx4_cleanup_cq_table(dev);
3574         mlx4_cmd_use_polling(dev);
3575         mlx4_cleanup_eq_table(dev);
3576         mlx4_cleanup_mcg_table(dev);
3577         mlx4_cleanup_mr_table(dev);
3578         mlx4_cleanup_xrcd_table(dev);
3579         mlx4_cleanup_pd_table(dev);
3580         mlx4_cleanup_uar_table(dev);
3581
3582 err_steer:
3583         if (!mlx4_is_slave(dev))
3584                 mlx4_clear_steering(dev);
3585
3586 err_disable_msix:
3587         if (dev->flags & MLX4_FLAG_MSI_X)
3588                 pci_disable_msix(pdev);
3589
3590 err_free_eq:
3591         mlx4_free_eq_table(dev);
3592
3593 err_master_mfunc:
3594         if (mlx4_is_master(dev)) {
3595                 mlx4_free_resource_tracker(dev, RES_TR_FREE_STRUCTS_ONLY);
3596                 mlx4_multi_func_cleanup(dev);
3597         }
3598
3599         if (mlx4_is_slave(dev)) {
3600                 kfree(dev->caps.qp0_qkey);
3601                 kfree(dev->caps.qp0_tunnel);
3602                 kfree(dev->caps.qp0_proxy);
3603                 kfree(dev->caps.qp1_tunnel);
3604                 kfree(dev->caps.qp1_proxy);
3605         }
3606
3607 err_close:
3608         mlx4_close_hca(dev);
3609
3610 err_fw:
3611         mlx4_close_fw(dev);
3612
3613 err_mfunc:
3614         if (mlx4_is_slave(dev))
3615                 mlx4_multi_func_cleanup(dev);
3616
3617 err_cmd:
3618         mlx4_cmd_cleanup(dev, MLX4_CMD_CLEANUP_ALL);
3619
3620 err_sriov:
3621         if (dev->flags & MLX4_FLAG_SRIOV && !existing_vfs) {
3622                 pci_disable_sriov(pdev);
3623                 dev->flags &= ~MLX4_FLAG_SRIOV;
3624         }
3625
3626         if (mlx4_is_master(dev) && dev->persist->num_vfs && !reset_flow)
3627                 atomic_dec(&pf_loading);
3628
3629         kfree(priv->dev.dev_vfs);
3630
3631         if (!mlx4_is_slave(dev))
3632                 mlx4_free_ownership(dev);
3633
3634         kfree(dev_cap);
3635         return err;
3636 }
3637
3638 static int __mlx4_init_one(struct pci_dev *pdev, int pci_dev_data,
3639                            struct mlx4_priv *priv)
3640 {
3641         int err;
3642         int nvfs[MLX4_MAX_PORTS + 1] = {0, 0, 0};
3643         int prb_vf[MLX4_MAX_PORTS + 1] = {0, 0, 0};
3644         const int param_map[MLX4_MAX_PORTS + 1][MLX4_MAX_PORTS + 1] = {
3645                 {2, 0, 0}, {0, 1, 2}, {0, 1, 2} };
3646         unsigned total_vfs = 0;
3647         unsigned int i;
3648
3649         pr_info(DRV_NAME ": Initializing %s\n", pci_name(pdev));
3650
3651         err = mlx4_pci_enable_device(&priv->dev);
3652         if (err) {
3653                 dev_err(&pdev->dev, "Cannot enable PCI device, aborting\n");
3654                 return err;
3655         }
3656
3657         /* Due to requirement that all VFs and the PF are *guaranteed* 2 MACS
3658          * per port, we must limit the number of VFs to 63 (since their are
3659          * 128 MACs)
3660          */
3661         for (i = 0; i < sizeof(nvfs)/sizeof(nvfs[0]) && i < num_vfs_argc;
3662              total_vfs += nvfs[param_map[num_vfs_argc - 1][i]], i++) {
3663                 nvfs[param_map[num_vfs_argc - 1][i]] = num_vfs[i];
3664                 if (nvfs[i] < 0) {
3665                         dev_err(&pdev->dev, "num_vfs module parameter cannot be negative\n");
3666                         err = -EINVAL;
3667                         goto err_disable_pdev;
3668                 }
3669         }
3670         for (i = 0; i < sizeof(prb_vf)/sizeof(prb_vf[0]) && i < probe_vfs_argc;
3671              i++) {
3672                 prb_vf[param_map[probe_vfs_argc - 1][i]] = probe_vf[i];
3673                 if (prb_vf[i] < 0 || prb_vf[i] > nvfs[i]) {
3674                         dev_err(&pdev->dev, "probe_vf module parameter cannot be negative or greater than num_vfs\n");
3675                         err = -EINVAL;
3676                         goto err_disable_pdev;
3677                 }
3678         }
3679         if (total_vfs > MLX4_MAX_NUM_VF) {
3680                 dev_err(&pdev->dev,
3681                         "Requested more VF's (%d) than allowed by hw (%d)\n",
3682                         total_vfs, MLX4_MAX_NUM_VF);
3683                 err = -EINVAL;
3684                 goto err_disable_pdev;
3685         }
3686
3687         for (i = 0; i < MLX4_MAX_PORTS; i++) {
3688                 if (nvfs[i] + nvfs[2] > MLX4_MAX_NUM_VF_P_PORT) {
3689                         dev_err(&pdev->dev,
3690                                 "Requested more VF's (%d) for port (%d) than allowed by driver (%d)\n",
3691                                 nvfs[i] + nvfs[2], i + 1,
3692                                 MLX4_MAX_NUM_VF_P_PORT);
3693                         err = -EINVAL;
3694                         goto err_disable_pdev;
3695                 }
3696         }
3697
3698         /* Check for BARs. */
3699         if (!(pci_dev_data & MLX4_PCI_DEV_IS_VF) &&
3700             !(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
3701                 dev_err(&pdev->dev, "Missing DCS, aborting (driver_data: 0x%x, pci_resource_flags(pdev, 0):0x%lx)\n",
3702                         pci_dev_data, pci_resource_flags(pdev, 0));
3703                 err = -ENODEV;
3704                 goto err_disable_pdev;
3705         }
3706         if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
3707                 dev_err(&pdev->dev, "Missing UAR, aborting\n");
3708                 err = -ENODEV;
3709                 goto err_disable_pdev;
3710         }
3711
3712         err = pci_request_regions(pdev, DRV_NAME);
3713         if (err) {
3714                 dev_err(&pdev->dev, "Couldn't get PCI resources, aborting\n");
3715                 goto err_disable_pdev;
3716         }
3717
3718         pci_set_master(pdev);
3719
3720         err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
3721         if (err) {
3722                 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask\n");
3723                 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
3724                 if (err) {
3725                         dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting\n");
3726                         goto err_release_regions;
3727                 }
3728         }
3729         err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
3730         if (err) {
3731                 dev_warn(&pdev->dev, "Warning: couldn't set 64-bit consistent PCI DMA mask\n");
3732                 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
3733                 if (err) {
3734                         dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, aborting\n");
3735                         goto err_release_regions;
3736                 }
3737         }
3738
3739         /* Allow large DMA segments, up to the firmware limit of 1 GB */
3740         dma_set_max_seg_size(&pdev->dev, 1024 * 1024 * 1024);
3741         /* Detect if this device is a virtual function */
3742         if (pci_dev_data & MLX4_PCI_DEV_IS_VF) {
3743                 /* When acting as pf, we normally skip vfs unless explicitly
3744                  * requested to probe them.
3745                  */
3746                 if (total_vfs) {
3747                         unsigned vfs_offset = 0;
3748
3749                         for (i = 0; i < sizeof(nvfs)/sizeof(nvfs[0]) &&
3750                              vfs_offset + nvfs[i] < extended_func_num(pdev);
3751                              vfs_offset += nvfs[i], i++)
3752                                 ;
3753                         if (i == sizeof(nvfs)/sizeof(nvfs[0])) {
3754                                 err = -ENODEV;
3755                                 goto err_release_regions;
3756                         }
3757                         if ((extended_func_num(pdev) - vfs_offset)
3758                             > prb_vf[i]) {
3759                                 dev_warn(&pdev->dev, "Skipping virtual function:%d\n",
3760                                          extended_func_num(pdev));
3761                                 err = -ENODEV;
3762                                 goto err_release_regions;
3763                         }
3764                 }
3765         }
3766
3767         err = mlx4_catas_init(&priv->dev);
3768         if (err)
3769                 goto err_release_regions;
3770
3771         err = mlx4_load_one(pdev, pci_dev_data, total_vfs, nvfs, priv, 0);
3772         if (err)
3773                 goto err_catas;
3774
3775         return 0;
3776
3777 err_catas:
3778         mlx4_catas_end(&priv->dev);
3779
3780 err_release_regions:
3781         pci_release_regions(pdev);
3782
3783 err_disable_pdev:
3784         mlx4_pci_disable_device(&priv->dev);
3785         pci_set_drvdata(pdev, NULL);
3786         return err;
3787 }
3788
3789 static int mlx4_devlink_port_type_set(struct devlink_port *devlink_port,
3790                                       enum devlink_port_type port_type)
3791 {
3792         struct mlx4_port_info *info = container_of(devlink_port,
3793                                                    struct mlx4_port_info,
3794                                                    devlink_port);
3795         enum mlx4_port_type mlx4_port_type;
3796
3797         switch (port_type) {
3798         case DEVLINK_PORT_TYPE_AUTO:
3799                 mlx4_port_type = MLX4_PORT_TYPE_AUTO;
3800                 break;
3801         case DEVLINK_PORT_TYPE_ETH:
3802                 mlx4_port_type = MLX4_PORT_TYPE_ETH;
3803                 break;
3804         case DEVLINK_PORT_TYPE_IB:
3805                 mlx4_port_type = MLX4_PORT_TYPE_IB;
3806                 break;
3807         default:
3808                 return -EOPNOTSUPP;
3809         }
3810
3811         return __set_port_type(info, mlx4_port_type);
3812 }
3813
3814 static const struct devlink_ops mlx4_devlink_ops = {
3815         .port_type_set  = mlx4_devlink_port_type_set,
3816 };
3817
3818 static int mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
3819 {
3820         struct devlink *devlink;
3821         struct mlx4_priv *priv;
3822         struct mlx4_dev *dev;
3823         int ret;
3824
3825         printk_once(KERN_INFO "%s", mlx4_version);
3826
3827         devlink = devlink_alloc(&mlx4_devlink_ops, sizeof(*priv));
3828         if (!devlink)
3829                 return -ENOMEM;
3830         priv = devlink_priv(devlink);
3831
3832         dev       = &priv->dev;
3833         dev->persist = kzalloc(sizeof(*dev->persist), GFP_KERNEL);
3834         if (!dev->persist) {
3835                 ret = -ENOMEM;
3836                 goto err_devlink_free;
3837         }
3838         dev->persist->pdev = pdev;
3839         dev->persist->dev = dev;
3840         pci_set_drvdata(pdev, dev->persist);
3841         priv->pci_dev_data = id->driver_data;
3842         mutex_init(&dev->persist->device_state_mutex);
3843         mutex_init(&dev->persist->interface_state_mutex);
3844         mutex_init(&dev->persist->pci_status_mutex);
3845
3846         ret = devlink_register(devlink, &pdev->dev);
3847         if (ret)
3848                 goto err_persist_free;
3849
3850         ret =  __mlx4_init_one(pdev, id->driver_data, priv);
3851         if (ret)
3852                 goto err_devlink_unregister;
3853
3854         pci_save_state(pdev);
3855         return 0;
3856
3857 err_devlink_unregister:
3858         devlink_unregister(devlink);
3859 err_persist_free:
3860         kfree(dev->persist);
3861 err_devlink_free:
3862         devlink_free(devlink);
3863         return ret;
3864 }
3865
3866 static void mlx4_clean_dev(struct mlx4_dev *dev)
3867 {
3868         struct mlx4_dev_persistent *persist = dev->persist;
3869         struct mlx4_priv *priv = mlx4_priv(dev);
3870         unsigned long   flags = (dev->flags & RESET_PERSIST_MASK_FLAGS);
3871
3872         memset(priv, 0, sizeof(*priv));
3873         priv->dev.persist = persist;
3874         priv->dev.flags = flags;
3875 }
3876
3877 static void mlx4_unload_one(struct pci_dev *pdev)
3878 {
3879         struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev);
3880         struct mlx4_dev  *dev  = persist->dev;
3881         struct mlx4_priv *priv = mlx4_priv(dev);
3882         int               pci_dev_data;
3883         int p, i;
3884
3885         if (priv->removed)
3886                 return;
3887
3888         /* saving current ports type for further use */
3889         for (i = 0; i < dev->caps.num_ports; i++) {
3890                 dev->persist->curr_port_type[i] = dev->caps.port_type[i + 1];
3891                 dev->persist->curr_port_poss_type[i] = dev->caps.
3892                                                        possible_type[i + 1];
3893         }
3894
3895         pci_dev_data = priv->pci_dev_data;
3896
3897         mlx4_stop_sense(dev);
3898         mlx4_unregister_device(dev);
3899
3900         for (p = 1; p <= dev->caps.num_ports; p++) {
3901                 mlx4_cleanup_port_info(&priv->port[p]);
3902                 mlx4_CLOSE_PORT(dev, p);
3903         }
3904
3905         if (mlx4_is_master(dev))
3906                 mlx4_free_resource_tracker(dev,
3907                                            RES_TR_FREE_SLAVES_ONLY);
3908
3909         mlx4_cleanup_default_counters(dev);
3910         if (!mlx4_is_slave(dev))
3911                 mlx4_cleanup_counters_table(dev);
3912         mlx4_cleanup_qp_table(dev);
3913         mlx4_cleanup_srq_table(dev);
3914         mlx4_cleanup_cq_table(dev);
3915         mlx4_cmd_use_polling(dev);
3916         mlx4_cleanup_eq_table(dev);
3917         mlx4_cleanup_mcg_table(dev);
3918         mlx4_cleanup_mr_table(dev);
3919         mlx4_cleanup_xrcd_table(dev);
3920         mlx4_cleanup_pd_table(dev);
3921
3922         if (mlx4_is_master(dev))
3923                 mlx4_free_resource_tracker(dev,
3924                                            RES_TR_FREE_STRUCTS_ONLY);
3925
3926         iounmap(priv->kar);
3927         mlx4_uar_free(dev, &priv->driver_uar);
3928         mlx4_cleanup_uar_table(dev);
3929         if (!mlx4_is_slave(dev))
3930                 mlx4_clear_steering(dev);
3931         mlx4_free_eq_table(dev);
3932         if (mlx4_is_master(dev))
3933                 mlx4_multi_func_cleanup(dev);
3934         mlx4_close_hca(dev);
3935         mlx4_close_fw(dev);
3936         if (mlx4_is_slave(dev))
3937                 mlx4_multi_func_cleanup(dev);
3938         mlx4_cmd_cleanup(dev, MLX4_CMD_CLEANUP_ALL);
3939
3940         if (dev->flags & MLX4_FLAG_MSI_X)
3941                 pci_disable_msix(pdev);
3942
3943         if (!mlx4_is_slave(dev))
3944                 mlx4_free_ownership(dev);
3945
3946         kfree(dev->caps.qp0_qkey);
3947         kfree(dev->caps.qp0_tunnel);
3948         kfree(dev->caps.qp0_proxy);
3949         kfree(dev->caps.qp1_tunnel);
3950         kfree(dev->caps.qp1_proxy);
3951         kfree(dev->dev_vfs);
3952
3953         mlx4_clean_dev(dev);
3954         priv->pci_dev_data = pci_dev_data;
3955         priv->removed = 1;
3956 }
3957
3958 static void mlx4_remove_one(struct pci_dev *pdev)
3959 {
3960         struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev);
3961         struct mlx4_dev  *dev  = persist->dev;
3962         struct mlx4_priv *priv = mlx4_priv(dev);
3963         struct devlink *devlink = priv_to_devlink(priv);
3964         int active_vfs = 0;
3965
3966         if (mlx4_is_slave(dev))
3967                 persist->interface_state |= MLX4_INTERFACE_STATE_NOWAIT;
3968
3969         mutex_lock(&persist->interface_state_mutex);
3970         persist->interface_state |= MLX4_INTERFACE_STATE_DELETION;
3971         mutex_unlock(&persist->interface_state_mutex);
3972
3973         /* Disabling SR-IOV is not allowed while there are active vf's */
3974         if (mlx4_is_master(dev) && dev->flags & MLX4_FLAG_SRIOV) {
3975                 active_vfs = mlx4_how_many_lives_vf(dev);
3976                 if (active_vfs) {
3977                         pr_warn("Removing PF when there are active VF's !!\n");
3978                         pr_warn("Will not disable SR-IOV.\n");
3979                 }
3980         }
3981
3982         /* device marked to be under deletion running now without the lock
3983          * letting other tasks to be terminated
3984          */
3985         if (persist->interface_state & MLX4_INTERFACE_STATE_UP)
3986                 mlx4_unload_one(pdev);
3987         else
3988                 mlx4_info(dev, "%s: interface is down\n", __func__);
3989         mlx4_catas_end(dev);
3990         if (dev->flags & MLX4_FLAG_SRIOV && !active_vfs) {
3991                 mlx4_warn(dev, "Disabling SR-IOV\n");
3992                 pci_disable_sriov(pdev);
3993         }
3994
3995         pci_release_regions(pdev);
3996         mlx4_pci_disable_device(dev);
3997         devlink_unregister(devlink);
3998         kfree(dev->persist);
3999         devlink_free(devlink);
4000         pci_set_drvdata(pdev, NULL);
4001 }
4002
4003 static int restore_current_port_types(struct mlx4_dev *dev,
4004                                       enum mlx4_port_type *types,
4005                                       enum mlx4_port_type *poss_types)
4006 {
4007         struct mlx4_priv *priv = mlx4_priv(dev);
4008         int err, i;
4009
4010         mlx4_stop_sense(dev);
4011
4012         mutex_lock(&priv->port_mutex);
4013         for (i = 0; i < dev->caps.num_ports; i++)
4014                 dev->caps.possible_type[i + 1] = poss_types[i];
4015         err = mlx4_change_port_types(dev, types);
4016         mlx4_start_sense(dev);
4017         mutex_unlock(&priv->port_mutex);
4018
4019         return err;
4020 }
4021
4022 int mlx4_restart_one(struct pci_dev *pdev)
4023 {
4024         struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev);
4025         struct mlx4_dev  *dev  = persist->dev;
4026         struct mlx4_priv *priv = mlx4_priv(dev);
4027         int nvfs[MLX4_MAX_PORTS + 1] = {0, 0, 0};
4028         int pci_dev_data, err, total_vfs;
4029
4030         pci_dev_data = priv->pci_dev_data;
4031         total_vfs = dev->persist->num_vfs;
4032         memcpy(nvfs, dev->persist->nvfs, sizeof(dev->persist->nvfs));
4033
4034         mlx4_unload_one(pdev);
4035         err = mlx4_load_one(pdev, pci_dev_data, total_vfs, nvfs, priv, 1);
4036         if (err) {
4037                 mlx4_err(dev, "%s: ERROR: mlx4_load_one failed, pci_name=%s, err=%d\n",
4038                          __func__, pci_name(pdev), err);
4039                 return err;
4040         }
4041
4042         err = restore_current_port_types(dev, dev->persist->curr_port_type,
4043                                          dev->persist->curr_port_poss_type);
4044         if (err)
4045                 mlx4_err(dev, "could not restore original port types (%d)\n",
4046                          err);
4047
4048         return err;
4049 }
4050
4051 #define MLX_SP(id) { PCI_VDEVICE(MELLANOX, id), MLX4_PCI_DEV_FORCE_SENSE_PORT }
4052 #define MLX_VF(id) { PCI_VDEVICE(MELLANOX, id), MLX4_PCI_DEV_IS_VF }
4053 #define MLX_GN(id) { PCI_VDEVICE(MELLANOX, id), 0 }
4054
4055 static const struct pci_device_id mlx4_pci_table[] = {
4056         /* MT25408 "Hermon" */
4057         MLX_SP(PCI_DEVICE_ID_MELLANOX_HERMON_SDR),      /* SDR */
4058         MLX_SP(PCI_DEVICE_ID_MELLANOX_HERMON_DDR),      /* DDR */
4059         MLX_SP(PCI_DEVICE_ID_MELLANOX_HERMON_QDR),      /* QDR */
4060         MLX_SP(PCI_DEVICE_ID_MELLANOX_HERMON_DDR_GEN2), /* DDR Gen2 */
4061         MLX_SP(PCI_DEVICE_ID_MELLANOX_HERMON_QDR_GEN2), /* QDR Gen2 */
4062         MLX_SP(PCI_DEVICE_ID_MELLANOX_HERMON_EN),       /* EN 10GigE */
4063         MLX_SP(PCI_DEVICE_ID_MELLANOX_HERMON_EN_GEN2),  /* EN 10GigE Gen2 */
4064         /* MT25458 ConnectX EN 10GBASE-T */
4065         MLX_SP(PCI_DEVICE_ID_MELLANOX_CONNECTX_EN),
4066         MLX_SP(PCI_DEVICE_ID_MELLANOX_CONNECTX_EN_T_GEN2),      /* Gen2 */
4067         /* MT26468 ConnectX EN 10GigE PCIe Gen2*/
4068         MLX_SP(PCI_DEVICE_ID_MELLANOX_CONNECTX_EN_GEN2),
4069         /* MT26438 ConnectX EN 40GigE PCIe Gen2 5GT/s */
4070         MLX_SP(PCI_DEVICE_ID_MELLANOX_CONNECTX_EN_5_GEN2),
4071         /* MT26478 ConnectX2 40GigE PCIe Gen2 */
4072         MLX_SP(PCI_DEVICE_ID_MELLANOX_CONNECTX2),
4073         /* MT25400 Family [ConnectX-2] */
4074         MLX_VF(0x1002),                                 /* Virtual Function */
4075         /* MT27500 Family [ConnectX-3] */
4076         MLX_GN(PCI_DEVICE_ID_MELLANOX_CONNECTX3),
4077         MLX_VF(0x1004),                                 /* Virtual Function */
4078         MLX_GN(0x1005),                                 /* MT27510 Family */
4079         MLX_GN(0x1006),                                 /* MT27511 Family */
4080         MLX_GN(PCI_DEVICE_ID_MELLANOX_CONNECTX3_PRO),   /* MT27520 Family */
4081         MLX_GN(0x1008),                                 /* MT27521 Family */
4082         MLX_GN(0x1009),                                 /* MT27530 Family */
4083         MLX_GN(0x100a),                                 /* MT27531 Family */
4084         MLX_GN(0x100b),                                 /* MT27540 Family */
4085         MLX_GN(0x100c),                                 /* MT27541 Family */
4086         MLX_GN(0x100d),                                 /* MT27550 Family */
4087         MLX_GN(0x100e),                                 /* MT27551 Family */
4088         MLX_GN(0x100f),                                 /* MT27560 Family */
4089         MLX_GN(0x1010),                                 /* MT27561 Family */
4090
4091         /*
4092          * See the mellanox_check_broken_intx_masking() quirk when
4093          * adding devices
4094          */
4095
4096         { 0, }
4097 };
4098
4099 MODULE_DEVICE_TABLE(pci, mlx4_pci_table);
4100
4101 static pci_ers_result_t mlx4_pci_err_detected(struct pci_dev *pdev,
4102                                               pci_channel_state_t state)
4103 {
4104         struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev);
4105
4106         mlx4_err(persist->dev, "mlx4_pci_err_detected was called\n");
4107         mlx4_enter_error_state(persist);
4108
4109         mutex_lock(&persist->interface_state_mutex);
4110         if (persist->interface_state & MLX4_INTERFACE_STATE_UP)
4111                 mlx4_unload_one(pdev);
4112
4113         mutex_unlock(&persist->interface_state_mutex);
4114         if (state == pci_channel_io_perm_failure)
4115                 return PCI_ERS_RESULT_DISCONNECT;
4116
4117         mlx4_pci_disable_device(persist->dev);
4118         return PCI_ERS_RESULT_NEED_RESET;
4119 }
4120
4121 static pci_ers_result_t mlx4_pci_slot_reset(struct pci_dev *pdev)
4122 {
4123         struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev);
4124         struct mlx4_dev  *dev  = persist->dev;
4125         int err;
4126
4127         mlx4_err(dev, "mlx4_pci_slot_reset was called\n");
4128         err = mlx4_pci_enable_device(dev);
4129         if (err) {
4130                 mlx4_err(dev, "Can not re-enable device, err=%d\n", err);
4131                 return PCI_ERS_RESULT_DISCONNECT;
4132         }
4133
4134         pci_set_master(pdev);
4135         pci_restore_state(pdev);
4136         pci_save_state(pdev);
4137         return PCI_ERS_RESULT_RECOVERED;
4138 }
4139
4140 static void mlx4_pci_resume(struct pci_dev *pdev)
4141 {
4142         struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev);
4143         struct mlx4_dev  *dev  = persist->dev;
4144         struct mlx4_priv *priv = mlx4_priv(dev);
4145         int nvfs[MLX4_MAX_PORTS + 1] = {0, 0, 0};
4146         int total_vfs;
4147         int err;
4148
4149         mlx4_err(dev, "%s was called\n", __func__);
4150         total_vfs = dev->persist->num_vfs;
4151         memcpy(nvfs, dev->persist->nvfs, sizeof(dev->persist->nvfs));
4152
4153         mutex_lock(&persist->interface_state_mutex);
4154         if (!(persist->interface_state & MLX4_INTERFACE_STATE_UP)) {
4155                 err = mlx4_load_one(pdev, priv->pci_dev_data, total_vfs, nvfs,
4156                                     priv, 1);
4157                 if (err) {
4158                         mlx4_err(dev, "%s: mlx4_load_one failed, err=%d\n",
4159                                  __func__,  err);
4160                         goto end;
4161                 }
4162
4163                 err = restore_current_port_types(dev, dev->persist->
4164                                                  curr_port_type, dev->persist->
4165                                                  curr_port_poss_type);
4166                 if (err)
4167                         mlx4_err(dev, "could not restore original port types (%d)\n", err);
4168         }
4169 end:
4170         mutex_unlock(&persist->interface_state_mutex);
4171
4172 }
4173
4174 static void mlx4_shutdown(struct pci_dev *pdev)
4175 {
4176         struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev);
4177
4178         mlx4_info(persist->dev, "mlx4_shutdown was called\n");
4179         mutex_lock(&persist->interface_state_mutex);
4180         if (persist->interface_state & MLX4_INTERFACE_STATE_UP)
4181                 mlx4_unload_one(pdev);
4182         mutex_unlock(&persist->interface_state_mutex);
4183 }
4184
4185 static const struct pci_error_handlers mlx4_err_handler = {
4186         .error_detected = mlx4_pci_err_detected,
4187         .slot_reset     = mlx4_pci_slot_reset,
4188         .resume         = mlx4_pci_resume,
4189 };
4190
4191 static struct pci_driver mlx4_driver = {
4192         .name           = DRV_NAME,
4193         .id_table       = mlx4_pci_table,
4194         .probe          = mlx4_init_one,
4195         .shutdown       = mlx4_shutdown,
4196         .remove         = mlx4_remove_one,
4197         .err_handler    = &mlx4_err_handler,
4198 };
4199
4200 static int __init mlx4_verify_params(void)
4201 {
4202         if ((log_num_mac < 0) || (log_num_mac > 7)) {
4203                 pr_warn("mlx4_core: bad num_mac: %d\n", log_num_mac);
4204                 return -1;
4205         }
4206
4207         if (log_num_vlan != 0)
4208                 pr_warn("mlx4_core: log_num_vlan - obsolete module param, using %d\n",
4209                         MLX4_LOG_NUM_VLANS);
4210
4211         if (use_prio != 0)
4212                 pr_warn("mlx4_core: use_prio - obsolete module param, ignored\n");
4213
4214         if ((log_mtts_per_seg < 1) || (log_mtts_per_seg > 7)) {
4215                 pr_warn("mlx4_core: bad log_mtts_per_seg: %d\n",
4216                         log_mtts_per_seg);
4217                 return -1;
4218         }
4219
4220         /* Check if module param for ports type has legal combination */
4221         if (port_type_array[0] == false && port_type_array[1] == true) {
4222                 pr_warn("Module parameter configuration ETH/IB is not supported. Switching to default configuration IB/IB\n");
4223                 port_type_array[0] = true;
4224         }
4225
4226         if (mlx4_log_num_mgm_entry_size < -7 ||
4227             (mlx4_log_num_mgm_entry_size > 0 &&
4228              (mlx4_log_num_mgm_entry_size < MLX4_MIN_MGM_LOG_ENTRY_SIZE ||
4229               mlx4_log_num_mgm_entry_size > MLX4_MAX_MGM_LOG_ENTRY_SIZE))) {
4230                 pr_warn("mlx4_core: mlx4_log_num_mgm_entry_size (%d) not in legal range (-7..0 or %d..%d)\n",
4231                         mlx4_log_num_mgm_entry_size,
4232                         MLX4_MIN_MGM_LOG_ENTRY_SIZE,
4233                         MLX4_MAX_MGM_LOG_ENTRY_SIZE);
4234                 return -1;
4235         }
4236
4237         return 0;
4238 }
4239
4240 static int __init mlx4_init(void)
4241 {
4242         int ret;
4243
4244         if (mlx4_verify_params())
4245                 return -EINVAL;
4246
4247
4248         mlx4_wq = create_singlethread_workqueue("mlx4");
4249         if (!mlx4_wq)
4250                 return -ENOMEM;
4251
4252         ret = pci_register_driver(&mlx4_driver);
4253         if (ret < 0)
4254                 destroy_workqueue(mlx4_wq);
4255         return ret < 0 ? ret : 0;
4256 }
4257
4258 static void __exit mlx4_cleanup(void)
4259 {
4260         pci_unregister_driver(&mlx4_driver);
4261         destroy_workqueue(mlx4_wq);
4262 }
4263
4264 module_init(mlx4_init);
4265 module_exit(mlx4_cleanup);