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