drivers/infiniband/hw/mlx4/main.c

   1 /*
   2  * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
   3  * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved.
   4  *
   5  * This software is available to you under a choice of one of two
   6  * licenses.  You may choose to be licensed under the terms of the GNU
   7  * General Public License (GPL) Version 2, available from the file
   8  * COPYING in the main directory of this source tree, or the
   9  * OpenIB.org BSD license below:
  10  *
  11  *     Redistribution and use in source and binary forms, with or
  12  *     without modification, are permitted provided that the following
  13  *     conditions are met:
  14  *
  15  *      - Redistributions of source code must retain the above
  16  *        copyright notice, this list of conditions and the following
  17  *        disclaimer.
  18  *
  19  *      - Redistributions in binary form must reproduce the above
  20  *        copyright notice, this list of conditions and the following
  21  *        disclaimer in the documentation and/or other materials
  22  *        provided with the distribution.
  23  *
  24  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  25  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  26  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  27  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  28  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  29  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  30  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  31  * SOFTWARE.
  32  */
  33
  34 #include <linux/module.h>
  35 #include <linux/init.h>
  36 #include <linux/slab.h>
  37 #include <linux/errno.h>
  38 #include <linux/netdevice.h>
  39 #include <linux/inetdevice.h>
  40 #include <linux/rtnetlink.h>
  41 #include <linux/if_vlan.h>
  42 #include <linux/sched/mm.h>
  43 #include <linux/sched/task.h>
  44
  45 #include <net/ipv6.h>
  46 #include <net/addrconf.h>
  47 #include <net/devlink.h>
  48
  49 #include <rdma/ib_smi.h>
  50 #include <rdma/ib_user_verbs.h>
  51 #include <rdma/ib_addr.h>
  52 #include <rdma/ib_cache.h>
  53
  54 #include <net/bonding.h>
  55
  56 #include <linux/mlx4/driver.h>
  57 #include <linux/mlx4/cmd.h>
  58 #include <linux/mlx4/qp.h>
  59
  60 #include "mlx4_ib.h"
  61 #include <rdma/mlx4-abi.h>
  62
  63 #define DRV_NAME        MLX4_IB_DRV_NAME
  64 #define DRV_VERSION     "2.2-1"
  65 #define DRV_RELDATE     "Feb 2014"
  66
  67 #define MLX4_IB_FLOW_MAX_PRIO 0xFFF
  68 #define MLX4_IB_FLOW_QPN_MASK 0xFFFFFF
  69 #define MLX4_IB_CARD_REV_A0   0xA0
  70
  71 MODULE_AUTHOR("Roland Dreier");
  72 MODULE_DESCRIPTION("Mellanox ConnectX HCA InfiniBand driver");
  73 MODULE_LICENSE("Dual BSD/GPL");
  74 MODULE_VERSION(DRV_VERSION);
  75
  76 int mlx4_ib_sm_guid_assign = 0;
  77 module_param_named(sm_guid_assign, mlx4_ib_sm_guid_assign, int, 0444);
  78 MODULE_PARM_DESC(sm_guid_assign, "Enable SM alias_GUID assignment if sm_guid_assign > 0 (Default: 0)");
  79
  80 static const char mlx4_ib_version[] =
  81         DRV_NAME ": Mellanox ConnectX InfiniBand driver v"
  82         DRV_VERSION " (" DRV_RELDATE ")\n";
  83
  84 static void do_slave_init(struct mlx4_ib_dev *ibdev, int slave, int do_init);
  85
  86 static struct workqueue_struct *wq;
  87
  88 static void init_query_mad(struct ib_smp *mad)
  89 {
  90         mad->base_version  = 1;
  91         mad->mgmt_class    = IB_MGMT_CLASS_SUBN_LID_ROUTED;
  92         mad->class_version = 1;
  93         mad->method        = IB_MGMT_METHOD_GET;
  94 }
  95
  96 static int check_flow_steering_support(struct mlx4_dev *dev)
  97 {
  98         int eth_num_ports = 0;
  99         int ib_num_ports = 0;
 100
 101         int dmfs = dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED;
 102
 103         if (dmfs) {
 104                 int i;
 105                 mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH)
 106                         eth_num_ports++;
 107                 mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB)
 108                         ib_num_ports++;
 109                 dmfs &= (!ib_num_ports ||
 110                          (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_DMFS_IPOIB)) &&
 111                         (!eth_num_ports ||
 112                          (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FS_EN));
 113                 if (ib_num_ports && mlx4_is_mfunc(dev)) {
 114                         pr_warn("Device managed flow steering is unavailable for IB port in multifunction env.\n");
 115                         dmfs = 0;
 116                 }
 117         }
 118         return dmfs;
 119 }
 120
 121 static int num_ib_ports(struct mlx4_dev *dev)
 122 {
 123         int ib_ports = 0;
 124         int i;
 125
 126         mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB)
 127                 ib_ports++;
 128
 129         return ib_ports;
 130 }
 131
 132 static struct net_device *mlx4_ib_get_netdev(struct ib_device *device, u8 port_num)
 133 {
 134         struct mlx4_ib_dev *ibdev = to_mdev(device);
 135         struct net_device *dev;
 136
 137         rcu_read_lock();
 138         dev = mlx4_get_protocol_dev(ibdev->dev, MLX4_PROT_ETH, port_num);
 139
 140         if (dev) {
 141                 if (mlx4_is_bonded(ibdev->dev)) {
 142                         struct net_device *upper = NULL;
 143
 144                         upper = netdev_master_upper_dev_get_rcu(dev);
 145                         if (upper) {
 146                                 struct net_device *active;
 147
 148                                 active = bond_option_active_slave_get_rcu(netdev_priv(upper));
 149                                 if (active)
 150                                         dev = active;
 151                         }
 152                 }
 153         }
 154         if (dev)
 155                 dev_hold(dev);
 156
 157         rcu_read_unlock();
 158         return dev;
 159 }
 160
 161 static int mlx4_ib_update_gids_v1(struct gid_entry *gids,
 162                                   struct mlx4_ib_dev *ibdev,
 163                                   u8 port_num)
 164 {
 165         struct mlx4_cmd_mailbox *mailbox;
 166         int err;
 167         struct mlx4_dev *dev = ibdev->dev;
 168         int i;
 169         union ib_gid *gid_tbl;
 170
 171         mailbox = mlx4_alloc_cmd_mailbox(dev);
 172         if (IS_ERR(mailbox))
 173                 return -ENOMEM;
 174
 175         gid_tbl = mailbox->buf;
 176
 177         for (i = 0; i < MLX4_MAX_PORT_GIDS; ++i)
 178                 memcpy(&gid_tbl[i], &gids[i].gid, sizeof(union ib_gid));
 179
 180         err = mlx4_cmd(dev, mailbox->dma,
 181                        MLX4_SET_PORT_GID_TABLE << 8 | port_num,
 182                        1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B,
 183                        MLX4_CMD_WRAPPED);
 184         if (mlx4_is_bonded(dev))
 185                 err += mlx4_cmd(dev, mailbox->dma,
 186                                 MLX4_SET_PORT_GID_TABLE << 8 | 2,
 187                                 1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B,
 188                                 MLX4_CMD_WRAPPED);
 189
 190         mlx4_free_cmd_mailbox(dev, mailbox);
 191         return err;
 192 }
 193
 194 static int mlx4_ib_update_gids_v1_v2(struct gid_entry *gids,
 195                                      struct mlx4_ib_dev *ibdev,
 196                                      u8 port_num)
 197 {
 198         struct mlx4_cmd_mailbox *mailbox;
 199         int err;
 200         struct mlx4_dev *dev = ibdev->dev;
 201         int i;
 202         struct {
 203                 union ib_gid    gid;
 204                 __be32          rsrvd1[2];
 205                 __be16          rsrvd2;
 206                 u8              type;
 207                 u8              version;
 208                 __be32          rsrvd3;
 209         } *gid_tbl;
 210
 211         mailbox = mlx4_alloc_cmd_mailbox(dev);
 212         if (IS_ERR(mailbox))
 213                 return -ENOMEM;
 214
 215         gid_tbl = mailbox->buf;
 216         for (i = 0; i < MLX4_MAX_PORT_GIDS; ++i) {
 217                 memcpy(&gid_tbl[i].gid, &gids[i].gid, sizeof(union ib_gid));
 218                 if (gids[i].gid_type == IB_GID_TYPE_ROCE_UDP_ENCAP) {
 219                         gid_tbl[i].version = 2;
 220                         if (!ipv6_addr_v4mapped((struct in6_addr *)&gids[i].gid))
 221                                 gid_tbl[i].type = 1;
 222                         else
 223                                 memset(&gid_tbl[i].gid, 0, 12);
 224                 }
 225         }
 226
 227         err = mlx4_cmd(dev, mailbox->dma,
 228                        MLX4_SET_PORT_ROCE_ADDR << 8 | port_num,
 229                        1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B,
 230                        MLX4_CMD_WRAPPED);
 231         if (mlx4_is_bonded(dev))
 232                 err += mlx4_cmd(dev, mailbox->dma,
 233                                 MLX4_SET_PORT_ROCE_ADDR << 8 | 2,
 234                                 1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B,
 235                                 MLX4_CMD_WRAPPED);
 236
 237         mlx4_free_cmd_mailbox(dev, mailbox);
 238         return err;
 239 }
 240
 241 static int mlx4_ib_update_gids(struct gid_entry *gids,
 242                                struct mlx4_ib_dev *ibdev,
 243                                u8 port_num)
 244 {
 245         if (ibdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ROCE_V1_V2)
 246                 return mlx4_ib_update_gids_v1_v2(gids, ibdev, port_num);
 247
 248         return mlx4_ib_update_gids_v1(gids, ibdev, port_num);
 249 }
 250
 251 static int mlx4_ib_add_gid(struct ib_device *device,
 252                            u8 port_num,
 253                            unsigned int index,
 254                            const union ib_gid *gid,
 255                            const struct ib_gid_attr *attr,
 256                            void **context)
 257 {
 258         struct mlx4_ib_dev *ibdev = to_mdev(device);
 259         struct mlx4_ib_iboe *iboe = &ibdev->iboe;
 260         struct mlx4_port_gid_table   *port_gid_table;
 261         int free = -1, found = -1;
 262         int ret = 0;
 263         int hw_update = 0;
 264         int i;
 265         struct gid_entry *gids = NULL;
 266
 267         if (!rdma_cap_roce_gid_table(device, port_num))
 268                 return -EINVAL;
 269
 270         if (port_num > MLX4_MAX_PORTS)
 271                 return -EINVAL;
 272
 273         if (!context)
 274                 return -EINVAL;
 275
 276         port_gid_table = &iboe->gids[port_num - 1];
 277         spin_lock_bh(&iboe->lock);
 278         for (i = 0; i < MLX4_MAX_PORT_GIDS; ++i) {
 279                 if (!memcmp(&port_gid_table->gids[i].gid, gid, sizeof(*gid)) &&
 280                     (port_gid_table->gids[i].gid_type == attr->gid_type))  {
 281                         found = i;
 282                         break;
 283                 }
 284                 if (free < 0 && !memcmp(&port_gid_table->gids[i].gid, &zgid, sizeof(*gid)))
 285                         free = i; /* HW has space */
 286         }
 287
 288         if (found < 0) {
 289                 if (free < 0) {
 290                         ret = -ENOSPC;
 291                 } else {
 292                         port_gid_table->gids[free].ctx = kmalloc(sizeof(*port_gid_table->gids[free].ctx), GFP_ATOMIC);
 293                         if (!port_gid_table->gids[free].ctx) {
 294                                 ret = -ENOMEM;
 295                         } else {
 296                                 *context = port_gid_table->gids[free].ctx;
 297                                 memcpy(&port_gid_table->gids[free].gid, gid, sizeof(*gid));
 298                                 port_gid_table->gids[free].gid_type = attr->gid_type;
 299                                 port_gid_table->gids[free].ctx->real_index = free;
 300                                 port_gid_table->gids[free].ctx->refcount = 1;
 301                                 hw_update = 1;
 302                         }
 303                 }
 304         } else {
 305                 struct gid_cache_context *ctx = port_gid_table->gids[found].ctx;
 306                 *context = ctx;
 307                 ctx->refcount++;
 308         }
 309         if (!ret && hw_update) {
 310                 gids = kmalloc(sizeof(*gids) * MLX4_MAX_PORT_GIDS, GFP_ATOMIC);
 311                 if (!gids) {
 312                         ret = -ENOMEM;
 313                 } else {
 314                         for (i = 0; i < MLX4_MAX_PORT_GIDS; i++) {
 315                                 memcpy(&gids[i].gid, &port_gid_table->gids[i].gid, sizeof(union ib_gid));
 316                                 gids[i].gid_type = port_gid_table->gids[i].gid_type;
 317                         }
 318                 }
 319         }
 320         spin_unlock_bh(&iboe->lock);
 321
 322         if (!ret && hw_update) {
 323                 ret = mlx4_ib_update_gids(gids, ibdev, port_num);
 324                 kfree(gids);
 325         }
 326
 327         return ret;
 328 }
 329
 330 static int mlx4_ib_del_gid(struct ib_device *device,
 331                            u8 port_num,
 332                            unsigned int index,
 333                            void **context)
 334 {
 335         struct gid_cache_context *ctx = *context;
 336         struct mlx4_ib_dev *ibdev = to_mdev(device);
 337         struct mlx4_ib_iboe *iboe = &ibdev->iboe;
 338         struct mlx4_port_gid_table   *port_gid_table;
 339         int ret = 0;
 340         int hw_update = 0;
 341         struct gid_entry *gids = NULL;
 342
 343         if (!rdma_cap_roce_gid_table(device, port_num))
 344                 return -EINVAL;
 345
 346         if (port_num > MLX4_MAX_PORTS)
 347                 return -EINVAL;
 348
 349         port_gid_table = &iboe->gids[port_num - 1];
 350         spin_lock_bh(&iboe->lock);
 351         if (ctx) {
 352                 ctx->refcount--;
 353                 if (!ctx->refcount) {
 354                         unsigned int real_index = ctx->real_index;
 355
 356                         memcpy(&port_gid_table->gids[real_index].gid, &zgid, sizeof(zgid));
 357                         kfree(port_gid_table->gids[real_index].ctx);
 358                         port_gid_table->gids[real_index].ctx = NULL;
 359                         hw_update = 1;
 360                 }
 361         }
 362         if (!ret && hw_update) {
 363                 int i;
 364
 365                 gids = kmalloc(sizeof(*gids) * MLX4_MAX_PORT_GIDS, GFP_ATOMIC);
 366                 if (!gids) {
 367                         ret = -ENOMEM;
 368                 } else {
 369                         for (i = 0; i < MLX4_MAX_PORT_GIDS; i++)
 370                                 memcpy(&gids[i].gid, &port_gid_table->gids[i].gid, sizeof(union ib_gid));
 371                 }
 372         }
 373         spin_unlock_bh(&iboe->lock);
 374
 375         if (!ret && hw_update) {
 376                 ret = mlx4_ib_update_gids(gids, ibdev, port_num);
 377                 kfree(gids);
 378         }
 379         return ret;
 380 }
 381
 382 int mlx4_ib_gid_index_to_real_index(struct mlx4_ib_dev *ibdev,
 383                                     u8 port_num, int index)
 384 {
 385         struct mlx4_ib_iboe *iboe = &ibdev->iboe;
 386         struct gid_cache_context *ctx = NULL;
 387         union ib_gid gid;
 388         struct mlx4_port_gid_table   *port_gid_table;
 389         int real_index = -EINVAL;
 390         int i;
 391         int ret;
 392         unsigned long flags;
 393         struct ib_gid_attr attr;
 394
 395         if (port_num > MLX4_MAX_PORTS)
 396                 return -EINVAL;
 397
 398         if (mlx4_is_bonded(ibdev->dev))
 399                 port_num = 1;
 400
 401         if (!rdma_cap_roce_gid_table(&ibdev->ib_dev, port_num))
 402                 return index;
 403
 404         ret = ib_get_cached_gid(&ibdev->ib_dev, port_num, index, &gid, &attr);
 405         if (ret)
 406                 return ret;
 407
 408         if (attr.ndev)
 409                 dev_put(attr.ndev);
 410
 411         if (!memcmp(&gid, &zgid, sizeof(gid)))
 412                 return -EINVAL;
 413
 414         spin_lock_irqsave(&iboe->lock, flags);
 415         port_gid_table = &iboe->gids[port_num - 1];
 416
 417         for (i = 0; i < MLX4_MAX_PORT_GIDS; ++i)
 418                 if (!memcmp(&port_gid_table->gids[i].gid, &gid, sizeof(gid)) &&
 419                     attr.gid_type == port_gid_table->gids[i].gid_type) {
 420                         ctx = port_gid_table->gids[i].ctx;
 421                         break;
 422                 }
 423         if (ctx)
 424                 real_index = ctx->real_index;
 425         spin_unlock_irqrestore(&iboe->lock, flags);
 426         return real_index;
 427 }
 428
 429 static int mlx4_ib_query_device(struct ib_device *ibdev,
 430                                 struct ib_device_attr *props,
 431                                 struct ib_udata *uhw)
 432 {
 433         struct mlx4_ib_dev *dev = to_mdev(ibdev);
 434         struct ib_smp *in_mad  = NULL;
 435         struct ib_smp *out_mad = NULL;
 436         int err;
 437         int have_ib_ports;
 438         struct mlx4_uverbs_ex_query_device cmd;
 439         struct mlx4_uverbs_ex_query_device_resp resp = {.comp_mask = 0};
 440         struct mlx4_clock_params clock_params;
 441
 442         if (uhw->inlen) {
 443                 if (uhw->inlen < sizeof(cmd))
 444                         return -EINVAL;
 445
 446                 err = ib_copy_from_udata(&cmd, uhw, sizeof(cmd));
 447                 if (err)
 448                         return err;
 449
 450                 if (cmd.comp_mask)
 451                         return -EINVAL;
 452
 453                 if (cmd.reserved)
 454                         return -EINVAL;
 455         }
 456
 457         resp.response_length = offsetof(typeof(resp), response_length) +
 458                 sizeof(resp.response_length);
 459         in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
 460         out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
 461         err = -ENOMEM;
 462         if (!in_mad || !out_mad)
 463                 goto out;
 464
 465         init_query_mad(in_mad);
 466         in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
 467
 468         err = mlx4_MAD_IFC(to_mdev(ibdev), MLX4_MAD_IFC_IGNORE_KEYS,
 469                            1, NULL, NULL, in_mad, out_mad);
 470         if (err)
 471                 goto out;
 472
 473         memset(props, 0, sizeof *props);
 474
 475         have_ib_ports = num_ib_ports(dev->dev);
 476
 477         props->fw_ver = dev->dev->caps.fw_ver;
 478         props->device_cap_flags    = IB_DEVICE_CHANGE_PHY_PORT |
 479                 IB_DEVICE_PORT_ACTIVE_EVENT             |
 480                 IB_DEVICE_SYS_IMAGE_GUID                |
 481                 IB_DEVICE_RC_RNR_NAK_GEN                |
 482                 IB_DEVICE_BLOCK_MULTICAST_LOOPBACK;
 483         if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR)
 484                 props->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR;
 485         if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR)
 486                 props->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR;
 487         if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_APM && have_ib_ports)
 488                 props->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG;
 489         if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UD_AV_PORT)
 490                 props->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE;
 491         if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_IPOIB_CSUM)
 492                 props->device_cap_flags |= IB_DEVICE_UD_IP_CSUM;
 493         if (dev->dev->caps.max_gso_sz &&
 494             (dev->dev->rev_id != MLX4_IB_CARD_REV_A0) &&
 495             (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BLH))
 496                 props->device_cap_flags |= IB_DEVICE_UD_TSO;
 497         if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_RESERVED_LKEY)
 498                 props->device_cap_flags |= IB_DEVICE_LOCAL_DMA_LKEY;
 499         if ((dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_LOCAL_INV) &&
 500             (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_REMOTE_INV) &&
 501             (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_FAST_REG_WR))
 502                 props->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS;
 503         if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC)
 504                 props->device_cap_flags |= IB_DEVICE_XRC;
 505         if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_MEM_WINDOW)
 506                 props->device_cap_flags |= IB_DEVICE_MEM_WINDOW;
 507         if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_TYPE_2_WIN) {
 508                 if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_WIN_TYPE_2B)
 509                         props->device_cap_flags |= IB_DEVICE_MEM_WINDOW_TYPE_2B;
 510                 else
 511                         props->device_cap_flags |= IB_DEVICE_MEM_WINDOW_TYPE_2A;
 512         }
 513         if (dev->steering_support == MLX4_STEERING_MODE_DEVICE_MANAGED)
 514                 props->device_cap_flags |= IB_DEVICE_MANAGED_FLOW_STEERING;
 515
 516         props->device_cap_flags |= IB_DEVICE_RAW_IP_CSUM;
 517
 518         props->vendor_id           = be32_to_cpup((__be32 *) (out_mad->data + 36)) &
 519                 0xffffff;
 520         props->vendor_part_id      = dev->dev->persist->pdev->device;
 521         props->hw_ver              = be32_to_cpup((__be32 *) (out_mad->data + 32));
 522         memcpy(&props->sys_image_guid, out_mad->data +  4, 8);
 523
 524         props->max_mr_size         = ~0ull;
 525         props->page_size_cap       = dev->dev->caps.page_size_cap;
 526         props->max_qp              = dev->dev->quotas.qp;
 527         props->max_qp_wr           = dev->dev->caps.max_wqes - MLX4_IB_SQ_MAX_SPARE;
 528         props->max_sge             = min(dev->dev->caps.max_sq_sg,
 529                                          dev->dev->caps.max_rq_sg);
 530         props->max_sge_rd          = MLX4_MAX_SGE_RD;
 531         props->max_cq              = dev->dev->quotas.cq;
 532         props->max_cqe             = dev->dev->caps.max_cqes;
 533         props->max_mr              = dev->dev->quotas.mpt;
 534         props->max_pd              = dev->dev->caps.num_pds - dev->dev->caps.reserved_pds;
 535         props->max_qp_rd_atom      = dev->dev->caps.max_qp_dest_rdma;
 536         props->max_qp_init_rd_atom = dev->dev->caps.max_qp_init_rdma;
 537         props->max_res_rd_atom     = props->max_qp_rd_atom * props->max_qp;
 538         props->max_srq             = dev->dev->quotas.srq;
 539         props->max_srq_wr          = dev->dev->caps.max_srq_wqes - 1;
 540         props->max_srq_sge         = dev->dev->caps.max_srq_sge;
 541         props->max_fast_reg_page_list_len = MLX4_MAX_FAST_REG_PAGES;
 542         props->local_ca_ack_delay  = dev->dev->caps.local_ca_ack_delay;
 543         props->atomic_cap          = dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_ATOMIC ?
 544                 IB_ATOMIC_HCA : IB_ATOMIC_NONE;
 545         props->masked_atomic_cap   = props->atomic_cap;
 546         props->max_pkeys           = dev->dev->caps.pkey_table_len[1];
 547         props->max_mcast_grp       = dev->dev->caps.num_mgms + dev->dev->caps.num_amgms;
 548         props->max_mcast_qp_attach = dev->dev->caps.num_qp_per_mgm;
 549         props->max_total_mcast_qp_attach = props->max_mcast_qp_attach *
 550                                            props->max_mcast_grp;
 551         props->max_map_per_fmr = dev->dev->caps.max_fmr_maps;
 552         props->hca_core_clock = dev->dev->caps.hca_core_clock * 1000UL;
 553         props->timestamp_mask = 0xFFFFFFFFFFFFULL;
 554         props->max_ah = INT_MAX;
 555
 556         if (!mlx4_is_slave(dev->dev))
 557                 err = mlx4_get_internal_clock_params(dev->dev, &clock_params);
 558
 559         if (uhw->outlen >= resp.response_length + sizeof(resp.hca_core_clock_offset)) {
 560                 resp.response_length += sizeof(resp.hca_core_clock_offset);
 561                 if (!err && !mlx4_is_slave(dev->dev)) {
 562                         resp.comp_mask |= QUERY_DEVICE_RESP_MASK_TIMESTAMP;
 563                         resp.hca_core_clock_offset = clock_params.offset % PAGE_SIZE;
 564                 }
 565         }
 566
 567         if (uhw->outlen) {
 568                 err = ib_copy_to_udata(uhw, &resp, resp.response_length);
 569                 if (err)
 570                         goto out;
 571         }
 572 out:
 573         kfree(in_mad);
 574         kfree(out_mad);
 575
 576         return err;
 577 }
 578
 579 static enum rdma_link_layer
 580 mlx4_ib_port_link_layer(struct ib_device *device, u8 port_num)
 581 {
 582         struct mlx4_dev *dev = to_mdev(device)->dev;
 583
 584         return dev->caps.port_mask[port_num] == MLX4_PORT_TYPE_IB ?
 585                 IB_LINK_LAYER_INFINIBAND : IB_LINK_LAYER_ETHERNET;
 586 }
 587
 588 static int ib_link_query_port(struct ib_device *ibdev, u8 port,
 589                               struct ib_port_attr *props, int netw_view)
 590 {
 591         struct ib_smp *in_mad  = NULL;
 592         struct ib_smp *out_mad = NULL;
 593         int ext_active_speed;
 594         int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
 595         int err = -ENOMEM;
 596
 597         in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
 598         out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
 599         if (!in_mad || !out_mad)
 600                 goto out;
 601
 602         init_query_mad(in_mad);
 603         in_mad->attr_id  = IB_SMP_ATTR_PORT_INFO;
 604         in_mad->attr_mod = cpu_to_be32(port);
 605
 606         if (mlx4_is_mfunc(to_mdev(ibdev)->dev) && netw_view)
 607                 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
 608
 609         err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, NULL, NULL,
 610                                 in_mad, out_mad);
 611         if (err)
 612                 goto out;
 613
 614
 615         props->lid              = be16_to_cpup((__be16 *) (out_mad->data + 16));
 616         props->lmc              = out_mad->data[34] & 0x7;
 617         props->sm_lid           = be16_to_cpup((__be16 *) (out_mad->data + 18));
 618         props->sm_sl            = out_mad->data[36] & 0xf;
 619         props->state            = out_mad->data[32] & 0xf;
 620         props->phys_state       = out_mad->data[33] >> 4;
 621         props->port_cap_flags   = be32_to_cpup((__be32 *) (out_mad->data + 20));
 622         if (netw_view)
 623                 props->gid_tbl_len = out_mad->data[50];
 624         else
 625                 props->gid_tbl_len = to_mdev(ibdev)->dev->caps.gid_table_len[port];
 626         props->max_msg_sz       = to_mdev(ibdev)->dev->caps.max_msg_sz;
 627         props->pkey_tbl_len     = to_mdev(ibdev)->dev->caps.pkey_table_len[port];
 628         props->bad_pkey_cntr    = be16_to_cpup((__be16 *) (out_mad->data + 46));
 629         props->qkey_viol_cntr   = be16_to_cpup((__be16 *) (out_mad->data + 48));
 630         props->active_width     = out_mad->data[31] & 0xf;
 631         props->active_speed     = out_mad->data[35] >> 4;
 632         props->max_mtu          = out_mad->data[41] & 0xf;
 633         props->active_mtu       = out_mad->data[36] >> 4;
 634         props->subnet_timeout   = out_mad->data[51] & 0x1f;
 635         props->max_vl_num       = out_mad->data[37] >> 4;
 636         props->init_type_reply  = out_mad->data[41] >> 4;
 637
 638         /* Check if extended speeds (EDR/FDR/...) are supported */
 639         if (props->port_cap_flags & IB_PORT_EXTENDED_SPEEDS_SUP) {
 640                 ext_active_speed = out_mad->data[62] >> 4;
 641
 642                 switch (ext_active_speed) {
 643                 case 1:
 644                         props->active_speed = IB_SPEED_FDR;
 645                         break;
 646                 case 2:
 647                         props->active_speed = IB_SPEED_EDR;
 648                         break;
 649                 }
 650         }
 651
 652         /* If reported active speed is QDR, check if is FDR-10 */
 653         if (props->active_speed == IB_SPEED_QDR) {
 654                 init_query_mad(in_mad);
 655                 in_mad->attr_id = MLX4_ATTR_EXTENDED_PORT_INFO;
 656                 in_mad->attr_mod = cpu_to_be32(port);
 657
 658                 err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port,
 659                                    NULL, NULL, in_mad, out_mad);
 660                 if (err)
 661                         goto out;
 662
 663                 /* Checking LinkSpeedActive for FDR-10 */
 664                 if (out_mad->data[15] & 0x1)
 665                         props->active_speed = IB_SPEED_FDR10;
 666         }
 667
 668         /* Avoid wrong speed value returned by FW if the IB link is down. */
 669         if (props->state == IB_PORT_DOWN)
 670                  props->active_speed = IB_SPEED_SDR;
 671
 672 out:
 673         kfree(in_mad);
 674         kfree(out_mad);
 675         return err;
 676 }
 677
 678 static u8 state_to_phys_state(enum ib_port_state state)
 679 {
 680         return state == IB_PORT_ACTIVE ? 5 : 3;
 681 }
 682
 683 static int eth_link_query_port(struct ib_device *ibdev, u8 port,
 684                                struct ib_port_attr *props)
 685 {
 686
 687         struct mlx4_ib_dev *mdev = to_mdev(ibdev);
 688         struct mlx4_ib_iboe *iboe = &mdev->iboe;
 689         struct net_device *ndev;
 690         enum ib_mtu tmp;
 691         struct mlx4_cmd_mailbox *mailbox;
 692         int err = 0;
 693         int is_bonded = mlx4_is_bonded(mdev->dev);
 694
 695         mailbox = mlx4_alloc_cmd_mailbox(mdev->dev);
 696         if (IS_ERR(mailbox))
 697                 return PTR_ERR(mailbox);
 698
 699         err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma, port, 0,
 700                            MLX4_CMD_QUERY_PORT, MLX4_CMD_TIME_CLASS_B,
 701                            MLX4_CMD_WRAPPED);
 702         if (err)
 703                 goto out;
 704
 705         props->active_width     =  (((u8 *)mailbox->buf)[5] == 0x40) ||
 706                                    (((u8 *)mailbox->buf)[5] == 0x20 /*56Gb*/) ?
 707                                            IB_WIDTH_4X : IB_WIDTH_1X;
 708         props->active_speed     =  (((u8 *)mailbox->buf)[5] == 0x20 /*56Gb*/) ?
 709                                            IB_SPEED_FDR : IB_SPEED_QDR;
 710         props->port_cap_flags   = IB_PORT_CM_SUP | IB_PORT_IP_BASED_GIDS;
 711         props->gid_tbl_len      = mdev->dev->caps.gid_table_len[port];
 712         props->max_msg_sz       = mdev->dev->caps.max_msg_sz;
 713         props->pkey_tbl_len     = 1;
 714         props->max_mtu          = IB_MTU_4096;
 715         props->max_vl_num       = 2;
 716         props->state            = IB_PORT_DOWN;
 717         props->phys_state       = state_to_phys_state(props->state);
 718         props->active_mtu       = IB_MTU_256;
 719         spin_lock_bh(&iboe->lock);
 720         ndev = iboe->netdevs[port - 1];
 721         if (ndev && is_bonded) {
 722                 rcu_read_lock(); /* required to get upper dev */
 723                 ndev = netdev_master_upper_dev_get_rcu(ndev);
 724                 rcu_read_unlock();
 725         }
 726         if (!ndev)
 727                 goto out_unlock;
 728
 729         tmp = iboe_get_mtu(ndev->mtu);
 730         props->active_mtu = tmp ? min(props->max_mtu, tmp) : IB_MTU_256;
 731
 732         props->state            = (netif_running(ndev) && netif_carrier_ok(ndev)) ?
 733                                         IB_PORT_ACTIVE : IB_PORT_DOWN;
 734         props->phys_state       = state_to_phys_state(props->state);
 735 out_unlock:
 736         spin_unlock_bh(&iboe->lock);
 737 out:
 738         mlx4_free_cmd_mailbox(mdev->dev, mailbox);
 739         return err;
 740 }
 741
 742 int __mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
 743                          struct ib_port_attr *props, int netw_view)
 744 {
 745         int err;
 746
 747         /* props being zeroed by the caller, avoid zeroing it here */
 748
 749         err = mlx4_ib_port_link_layer(ibdev, port) == IB_LINK_LAYER_INFINIBAND ?
 750                 ib_link_query_port(ibdev, port, props, netw_view) :
 751                                 eth_link_query_port(ibdev, port, props);
 752
 753         return err;
 754 }
 755
 756 static int mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
 757                               struct ib_port_attr *props)
 758 {
 759         /* returns host view */
 760         return __mlx4_ib_query_port(ibdev, port, props, 0);
 761 }
 762
 763 int __mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
 764                         union ib_gid *gid, int netw_view)
 765 {
 766         struct ib_smp *in_mad  = NULL;
 767         struct ib_smp *out_mad = NULL;
 768         int err = -ENOMEM;
 769         struct mlx4_ib_dev *dev = to_mdev(ibdev);
 770         int clear = 0;
 771         int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
 772
 773         in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
 774         out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
 775         if (!in_mad || !out_mad)
 776                 goto out;
 777
 778         init_query_mad(in_mad);
 779         in_mad->attr_id  = IB_SMP_ATTR_PORT_INFO;
 780         in_mad->attr_mod = cpu_to_be32(port);
 781
 782         if (mlx4_is_mfunc(dev->dev) && netw_view)
 783                 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
 784
 785         err = mlx4_MAD_IFC(dev, mad_ifc_flags, port, NULL, NULL, in_mad, out_mad);
 786         if (err)
 787                 goto out;
 788
 789         memcpy(gid->raw, out_mad->data + 8, 8);
 790
 791         if (mlx4_is_mfunc(dev->dev) && !netw_view) {
 792                 if (index) {
 793                         /* For any index > 0, return the null guid */
 794                         err = 0;
 795                         clear = 1;
 796                         goto out;
 797                 }
 798         }
 799
 800         init_query_mad(in_mad);
 801         in_mad->attr_id  = IB_SMP_ATTR_GUID_INFO;
 802         in_mad->attr_mod = cpu_to_be32(index / 8);
 803
 804         err = mlx4_MAD_IFC(dev, mad_ifc_flags, port,
 805                            NULL, NULL, in_mad, out_mad);
 806         if (err)
 807                 goto out;
 808
 809         memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8);
 810
 811 out:
 812         if (clear)
 813                 memset(gid->raw + 8, 0, 8);
 814         kfree(in_mad);
 815         kfree(out_mad);
 816         return err;
 817 }
 818
 819 static int mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
 820                              union ib_gid *gid)
 821 {
 822         int ret;
 823
 824         if (rdma_protocol_ib(ibdev, port))
 825                 return __mlx4_ib_query_gid(ibdev, port, index, gid, 0);
 826
 827         if (!rdma_protocol_roce(ibdev, port))
 828                 return -ENODEV;
 829
 830         if (!rdma_cap_roce_gid_table(ibdev, port))
 831                 return -ENODEV;
 832
 833         ret = ib_get_cached_gid(ibdev, port, index, gid, NULL);
 834         if (ret == -EAGAIN) {
 835                 memcpy(gid, &zgid, sizeof(*gid));
 836                 return 0;
 837         }
 838
 839         return ret;
 840 }
 841
 842 static int mlx4_ib_query_sl2vl(struct ib_device *ibdev, u8 port, u64 *sl2vl_tbl)
 843 {
 844         union sl2vl_tbl_to_u64 sl2vl64;
 845         struct ib_smp *in_mad  = NULL;
 846         struct ib_smp *out_mad = NULL;
 847         int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
 848         int err = -ENOMEM;
 849         int jj;
 850
 851         if (mlx4_is_slave(to_mdev(ibdev)->dev)) {
 852                 *sl2vl_tbl = 0;
 853                 return 0;
 854         }
 855
 856         in_mad  = kzalloc(sizeof(*in_mad), GFP_KERNEL);
 857         out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL);
 858         if (!in_mad || !out_mad)
 859                 goto out;
 860
 861         init_query_mad(in_mad);
 862         in_mad->attr_id  = IB_SMP_ATTR_SL_TO_VL_TABLE;
 863         in_mad->attr_mod = 0;
 864
 865         if (mlx4_is_mfunc(to_mdev(ibdev)->dev))
 866                 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
 867
 868         err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, NULL, NULL,
 869                            in_mad, out_mad);
 870         if (err)
 871                 goto out;
 872
 873         for (jj = 0; jj < 8; jj++)
 874                 sl2vl64.sl8[jj] = ((struct ib_smp *)out_mad)->data[jj];
 875         *sl2vl_tbl = sl2vl64.sl64;
 876
 877 out:
 878         kfree(in_mad);
 879         kfree(out_mad);
 880         return err;
 881 }
 882
 883 static void mlx4_init_sl2vl_tbl(struct mlx4_ib_dev *mdev)
 884 {
 885         u64 sl2vl;
 886         int i;
 887         int err;
 888
 889         for (i = 1; i <= mdev->dev->caps.num_ports; i++) {
 890                 if (mdev->dev->caps.port_type[i] == MLX4_PORT_TYPE_ETH)
 891                         continue;
 892                 err = mlx4_ib_query_sl2vl(&mdev->ib_dev, i, &sl2vl);
 893                 if (err) {
 894                         pr_err("Unable to get default sl to vl mapping for port %d.  Using all zeroes (%d)\n",
 895                                i, err);
 896                         sl2vl = 0;
 897                 }
 898                 atomic64_set(&mdev->sl2vl[i - 1], sl2vl);
 899         }
 900 }
 901
 902 int __mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
 903                          u16 *pkey, int netw_view)
 904 {
 905         struct ib_smp *in_mad  = NULL;
 906         struct ib_smp *out_mad = NULL;
 907         int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
 908         int err = -ENOMEM;
 909
 910         in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
 911         out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
 912         if (!in_mad || !out_mad)
 913                 goto out;
 914
 915         init_query_mad(in_mad);
 916         in_mad->attr_id  = IB_SMP_ATTR_PKEY_TABLE;
 917         in_mad->attr_mod = cpu_to_be32(index / 32);
 918
 919         if (mlx4_is_mfunc(to_mdev(ibdev)->dev) && netw_view)
 920                 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
 921
 922         err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, NULL, NULL,
 923                            in_mad, out_mad);
 924         if (err)
 925                 goto out;
 926
 927         *pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]);
 928
 929 out:
 930         kfree(in_mad);
 931         kfree(out_mad);
 932         return err;
 933 }
 934
 935 static int mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index, u16 *pkey)
 936 {
 937         return __mlx4_ib_query_pkey(ibdev, port, index, pkey, 0);
 938 }
 939
 940 static int mlx4_ib_modify_device(struct ib_device *ibdev, int mask,
 941                                  struct ib_device_modify *props)
 942 {
 943         struct mlx4_cmd_mailbox *mailbox;
 944         unsigned long flags;
 945
 946         if (mask & ~IB_DEVICE_MODIFY_NODE_DESC)
 947                 return -EOPNOTSUPP;
 948
 949         if (!(mask & IB_DEVICE_MODIFY_NODE_DESC))
 950                 return 0;
 951
 952         if (mlx4_is_slave(to_mdev(ibdev)->dev))
 953                 return -EOPNOTSUPP;
 954
 955         spin_lock_irqsave(&to_mdev(ibdev)->sm_lock, flags);
 956         memcpy(ibdev->node_desc, props->node_desc, IB_DEVICE_NODE_DESC_MAX);
 957         spin_unlock_irqrestore(&to_mdev(ibdev)->sm_lock, flags);
 958
 959         /*
 960          * If possible, pass node desc to FW, so it can generate
 961          * a 144 trap.  If cmd fails, just ignore.
 962          */
 963         mailbox = mlx4_alloc_cmd_mailbox(to_mdev(ibdev)->dev);
 964         if (IS_ERR(mailbox))
 965                 return 0;
 966
 967         memcpy(mailbox->buf, props->node_desc, IB_DEVICE_NODE_DESC_MAX);
 968         mlx4_cmd(to_mdev(ibdev)->dev, mailbox->dma, 1, 0,
 969                  MLX4_CMD_SET_NODE, MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
 970
 971         mlx4_free_cmd_mailbox(to_mdev(ibdev)->dev, mailbox);
 972
 973         return 0;
 974 }
 975
 976 static int mlx4_ib_SET_PORT(struct mlx4_ib_dev *dev, u8 port, int reset_qkey_viols,
 977                             u32 cap_mask)
 978 {
 979         struct mlx4_cmd_mailbox *mailbox;
 980         int err;
 981
 982         mailbox = mlx4_alloc_cmd_mailbox(dev->dev);
 983         if (IS_ERR(mailbox))
 984                 return PTR_ERR(mailbox);
 985
 986         if (dev->dev->flags & MLX4_FLAG_OLD_PORT_CMDS) {
 987                 *(u8 *) mailbox->buf         = !!reset_qkey_viols << 6;
 988                 ((__be32 *) mailbox->buf)[2] = cpu_to_be32(cap_mask);
 989         } else {
 990                 ((u8 *) mailbox->buf)[3]     = !!reset_qkey_viols;
 991                 ((__be32 *) mailbox->buf)[1] = cpu_to_be32(cap_mask);
 992         }
 993
 994         err = mlx4_cmd(dev->dev, mailbox->dma, port, MLX4_SET_PORT_IB_OPCODE,
 995                        MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B,
 996                        MLX4_CMD_WRAPPED);
 997
 998         mlx4_free_cmd_mailbox(dev->dev, mailbox);
 999         return err;
1000 }
1001
1002 static int mlx4_ib_modify_port(struct ib_device *ibdev, u8 port, int mask,
1003                                struct ib_port_modify *props)
1004 {
1005         struct mlx4_ib_dev *mdev = to_mdev(ibdev);
1006         u8 is_eth = mdev->dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH;
1007         struct ib_port_attr attr;
1008         u32 cap_mask;
1009         int err;
1010
1011         /* return OK if this is RoCE. CM calls ib_modify_port() regardless
1012          * of whether port link layer is ETH or IB. For ETH ports, qkey
1013          * violations and port capabilities are not meaningful.
1014          */
1015         if (is_eth)
1016                 return 0;
1017
1018         mutex_lock(&mdev->cap_mask_mutex);
1019
1020         err = ib_query_port(ibdev, port, &attr);
1021         if (err)
1022                 goto out;
1023
1024         cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) &
1025                 ~props->clr_port_cap_mask;
1026
1027         err = mlx4_ib_SET_PORT(mdev, port,
1028                                !!(mask & IB_PORT_RESET_QKEY_CNTR),
1029                                cap_mask);
1030
1031 out:
1032         mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex);
1033         return err;
1034 }
1035
1036 static struct ib_ucontext *mlx4_ib_alloc_ucontext(struct ib_device *ibdev,
1037                                                   struct ib_udata *udata)
1038 {
1039         struct mlx4_ib_dev *dev = to_mdev(ibdev);
1040         struct mlx4_ib_ucontext *context;
1041         struct mlx4_ib_alloc_ucontext_resp_v3 resp_v3;
1042         struct mlx4_ib_alloc_ucontext_resp resp;
1043         int err;
1044
1045         if (!dev->ib_active)
1046                 return ERR_PTR(-EAGAIN);
1047
1048         if (ibdev->uverbs_abi_ver == MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION) {
1049                 resp_v3.qp_tab_size      = dev->dev->caps.num_qps;
1050                 resp_v3.bf_reg_size      = dev->dev->caps.bf_reg_size;
1051                 resp_v3.bf_regs_per_page = dev->dev->caps.bf_regs_per_page;
1052         } else {
1053                 resp.dev_caps         = dev->dev->caps.userspace_caps;
1054                 resp.qp_tab_size      = dev->dev->caps.num_qps;
1055                 resp.bf_reg_size      = dev->dev->caps.bf_reg_size;
1056                 resp.bf_regs_per_page = dev->dev->caps.bf_regs_per_page;
1057                 resp.cqe_size         = dev->dev->caps.cqe_size;
1058         }
1059
1060         context = kzalloc(sizeof(*context), GFP_KERNEL);
1061         if (!context)
1062                 return ERR_PTR(-ENOMEM);
1063
1064         err = mlx4_uar_alloc(to_mdev(ibdev)->dev, &context->uar);
1065         if (err) {
1066                 kfree(context);
1067                 return ERR_PTR(err);
1068         }
1069
1070         INIT_LIST_HEAD(&context->db_page_list);
1071         mutex_init(&context->db_page_mutex);
1072
1073         if (ibdev->uverbs_abi_ver == MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION)
1074                 err = ib_copy_to_udata(udata, &resp_v3, sizeof(resp_v3));
1075         else
1076                 err = ib_copy_to_udata(udata, &resp, sizeof(resp));
1077
1078         if (err) {
1079                 mlx4_uar_free(to_mdev(ibdev)->dev, &context->uar);
1080                 kfree(context);
1081                 return ERR_PTR(-EFAULT);
1082         }
1083
1084         return &context->ibucontext;
1085 }
1086
1087 static int mlx4_ib_dealloc_ucontext(struct ib_ucontext *ibcontext)
1088 {
1089         struct mlx4_ib_ucontext *context = to_mucontext(ibcontext);
1090
1091         mlx4_uar_free(to_mdev(ibcontext->device)->dev, &context->uar);
1092         kfree(context);
1093
1094         return 0;
1095 }
1096
1097 static void  mlx4_ib_vma_open(struct vm_area_struct *area)
1098 {
1099         /* vma_open is called when a new VMA is created on top of our VMA.
1100          * This is done through either mremap flow or split_vma (usually due
1101          * to mlock, madvise, munmap, etc.). We do not support a clone of the
1102          * vma, as this VMA is strongly hardware related. Therefore we set the
1103          * vm_ops of the newly created/cloned VMA to NULL, to prevent it from
1104          * calling us again and trying to do incorrect actions. We assume that
1105          * the original vma size is exactly a single page that there will be no
1106          * "splitting" operations on.
1107          */
1108         area->vm_ops = NULL;
1109 }
1110
1111 static void  mlx4_ib_vma_close(struct vm_area_struct *area)
1112 {
1113         struct mlx4_ib_vma_private_data *mlx4_ib_vma_priv_data;
1114
1115         /* It's guaranteed that all VMAs opened on a FD are closed before the
1116          * file itself is closed, therefore no sync is needed with the regular
1117          * closing flow. (e.g. mlx4_ib_dealloc_ucontext) However need a sync
1118          * with accessing the vma as part of mlx4_ib_disassociate_ucontext.
1119          * The close operation is usually called under mm->mmap_sem except when
1120          * process is exiting.  The exiting case is handled explicitly as part
1121          * of mlx4_ib_disassociate_ucontext.
1122          */
1123         mlx4_ib_vma_priv_data = (struct mlx4_ib_vma_private_data *)
1124                                 area->vm_private_data;
1125
1126         /* set the vma context pointer to null in the mlx4_ib driver's private
1127          * data to protect against a race condition in mlx4_ib_dissassociate_ucontext().
1128          */
1129         mlx4_ib_vma_priv_data->vma = NULL;
1130 }
1131
1132 static const struct vm_operations_struct mlx4_ib_vm_ops = {
1133         .open = mlx4_ib_vma_open,
1134         .close = mlx4_ib_vma_close
1135 };
1136
1137 static void mlx4_ib_disassociate_ucontext(struct ib_ucontext *ibcontext)
1138 {
1139         int i;
1140         int ret = 0;
1141         struct vm_area_struct *vma;
1142         struct mlx4_ib_ucontext *context = to_mucontext(ibcontext);
1143         struct task_struct *owning_process  = NULL;
1144         struct mm_struct   *owning_mm       = NULL;
1145
1146         owning_process = get_pid_task(ibcontext->tgid, PIDTYPE_PID);
1147         if (!owning_process)
1148                 return;
1149
1150         owning_mm = get_task_mm(owning_process);
1151         if (!owning_mm) {
1152                 pr_info("no mm, disassociate ucontext is pending task termination\n");
1153                 while (1) {
1154                         /* make sure that task is dead before returning, it may
1155                          * prevent a rare case of module down in parallel to a
1156                          * call to mlx4_ib_vma_close.
1157                          */
1158                         put_task_struct(owning_process);
1159                         msleep(1);
1160                         owning_process = get_pid_task(ibcontext->tgid,
1161                                                       PIDTYPE_PID);
1162                         if (!owning_process ||
1163                             owning_process->state == TASK_DEAD) {
1164                                 pr_info("disassociate ucontext done, task was terminated\n");
1165                                 /* in case task was dead need to release the task struct */
1166                                 if (owning_process)
1167                                         put_task_struct(owning_process);
1168                                 return;
1169                         }
1170                 }
1171         }
1172
1173         /* need to protect from a race on closing the vma as part of
1174          * mlx4_ib_vma_close().
1175          */
1176         down_read(&owning_mm->mmap_sem);
1177         for (i = 0; i < HW_BAR_COUNT; i++) {
1178                 vma = context->hw_bar_info[i].vma;
1179                 if (!vma)
1180                         continue;
1181
1182                 ret = zap_vma_ptes(context->hw_bar_info[i].vma,
1183                                    context->hw_bar_info[i].vma->vm_start,
1184                                    PAGE_SIZE);
1185                 if (ret) {
1186                         pr_err("Error: zap_vma_ptes failed for index=%d, ret=%d\n", i, ret);
1187                         BUG_ON(1);
1188                 }
1189
1190                 /* context going to be destroyed, should not access ops any more */
1191                 context->hw_bar_info[i].vma->vm_ops = NULL;
1192         }
1193
1194         up_read(&owning_mm->mmap_sem);
1195         mmput(owning_mm);
1196         put_task_struct(owning_process);
1197 }
1198
1199 static void mlx4_ib_set_vma_data(struct vm_area_struct *vma,
1200                                  struct mlx4_ib_vma_private_data *vma_private_data)
1201 {
1202         vma_private_data->vma = vma;
1203         vma->vm_private_data = vma_private_data;
1204         vma->vm_ops =  &mlx4_ib_vm_ops;
1205 }
1206
1207 static int mlx4_ib_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
1208 {
1209         struct mlx4_ib_dev *dev = to_mdev(context->device);
1210         struct mlx4_ib_ucontext *mucontext = to_mucontext(context);
1211
1212         if (vma->vm_end - vma->vm_start != PAGE_SIZE)
1213                 return -EINVAL;
1214
1215         if (vma->vm_pgoff == 0) {
1216                 /* We prevent double mmaping on same context */
1217                 if (mucontext->hw_bar_info[HW_BAR_DB].vma)
1218                         return -EINVAL;
1219
1220                 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
1221
1222                 if (io_remap_pfn_range(vma, vma->vm_start,
1223                                        to_mucontext(context)->uar.pfn,
1224                                        PAGE_SIZE, vma->vm_page_prot))
1225                         return -EAGAIN;
1226
1227                 mlx4_ib_set_vma_data(vma, &mucontext->hw_bar_info[HW_BAR_DB]);
1228
1229         } else if (vma->vm_pgoff == 1 && dev->dev->caps.bf_reg_size != 0) {
1230                 /* We prevent double mmaping on same context */
1231                 if (mucontext->hw_bar_info[HW_BAR_BF].vma)
1232                         return -EINVAL;
1233
1234                 vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
1235
1236                 if (io_remap_pfn_range(vma, vma->vm_start,
1237                                        to_mucontext(context)->uar.pfn +
1238                                        dev->dev->caps.num_uars,
1239                                        PAGE_SIZE, vma->vm_page_prot))
1240                         return -EAGAIN;
1241
1242                 mlx4_ib_set_vma_data(vma, &mucontext->hw_bar_info[HW_BAR_BF]);
1243
1244         } else if (vma->vm_pgoff == 3) {
1245                 struct mlx4_clock_params params;
1246                 int ret;
1247
1248                 /* We prevent double mmaping on same context */
1249                 if (mucontext->hw_bar_info[HW_BAR_CLOCK].vma)
1250                         return -EINVAL;
1251
1252                 ret = mlx4_get_internal_clock_params(dev->dev, &params);
1253
1254                 if (ret)
1255                         return ret;
1256
1257                 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
1258                 if (io_remap_pfn_range(vma, vma->vm_start,
1259                                        (pci_resource_start(dev->dev->persist->pdev,
1260                                                            params.bar) +
1261                                         params.offset)
1262                                        >> PAGE_SHIFT,
1263                                        PAGE_SIZE, vma->vm_page_prot))
1264                         return -EAGAIN;
1265
1266                 mlx4_ib_set_vma_data(vma,
1267                                      &mucontext->hw_bar_info[HW_BAR_CLOCK]);
1268         } else {
1269                 return -EINVAL;
1270         }
1271
1272         return 0;
1273 }
1274
1275 static struct ib_pd *mlx4_ib_alloc_pd(struct ib_device *ibdev,
1276                                       struct ib_ucontext *context,
1277                                       struct ib_udata *udata)
1278 {
1279         struct mlx4_ib_pd *pd;
1280         int err;
1281
1282         pd = kmalloc(sizeof *pd, GFP_KERNEL);
1283         if (!pd)
1284                 return ERR_PTR(-ENOMEM);
1285
1286         err = mlx4_pd_alloc(to_mdev(ibdev)->dev, &pd->pdn);
1287         if (err) {
1288                 kfree(pd);
1289                 return ERR_PTR(err);
1290         }
1291
1292         if (context)
1293                 if (ib_copy_to_udata(udata, &pd->pdn, sizeof (__u32))) {
1294                         mlx4_pd_free(to_mdev(ibdev)->dev, pd->pdn);
1295                         kfree(pd);
1296                         return ERR_PTR(-EFAULT);
1297                 }
1298
1299         return &pd->ibpd;
1300 }
1301
1302 static int mlx4_ib_dealloc_pd(struct ib_pd *pd)
1303 {
1304         mlx4_pd_free(to_mdev(pd->device)->dev, to_mpd(pd)->pdn);
1305         kfree(pd);
1306
1307         return 0;
1308 }
1309
1310 static struct ib_xrcd *mlx4_ib_alloc_xrcd(struct ib_device *ibdev,
1311                                           struct ib_ucontext *context,
1312                                           struct ib_udata *udata)
1313 {
1314         struct mlx4_ib_xrcd *xrcd;
1315         struct ib_cq_init_attr cq_attr = {};
1316         int err;
1317
1318         if (!(to_mdev(ibdev)->dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC))
1319                 return ERR_PTR(-ENOSYS);
1320
1321         xrcd = kmalloc(sizeof *xrcd, GFP_KERNEL);
1322         if (!xrcd)
1323                 return ERR_PTR(-ENOMEM);
1324
1325         err = mlx4_xrcd_alloc(to_mdev(ibdev)->dev, &xrcd->xrcdn);
1326         if (err)
1327                 goto err1;
1328
1329         xrcd->pd = ib_alloc_pd(ibdev, 0);
1330         if (IS_ERR(xrcd->pd)) {
1331                 err = PTR_ERR(xrcd->pd);
1332                 goto err2;
1333         }
1334
1335         cq_attr.cqe = 1;
1336         xrcd->cq = ib_create_cq(ibdev, NULL, NULL, xrcd, &cq_attr);
1337         if (IS_ERR(xrcd->cq)) {
1338                 err = PTR_ERR(xrcd->cq);
1339                 goto err3;
1340         }
1341
1342         return &xrcd->ibxrcd;
1343
1344 err3:
1345         ib_dealloc_pd(xrcd->pd);
1346 err2:
1347         mlx4_xrcd_free(to_mdev(ibdev)->dev, xrcd->xrcdn);
1348 err1:
1349         kfree(xrcd);
1350         return ERR_PTR(err);
1351 }
1352
1353 static int mlx4_ib_dealloc_xrcd(struct ib_xrcd *xrcd)
1354 {
1355         ib_destroy_cq(to_mxrcd(xrcd)->cq);
1356         ib_dealloc_pd(to_mxrcd(xrcd)->pd);
1357         mlx4_xrcd_free(to_mdev(xrcd->device)->dev, to_mxrcd(xrcd)->xrcdn);
1358         kfree(xrcd);
1359
1360         return 0;
1361 }
1362
1363 static int add_gid_entry(struct ib_qp *ibqp, union ib_gid *gid)
1364 {
1365         struct mlx4_ib_qp *mqp = to_mqp(ibqp);
1366         struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
1367         struct mlx4_ib_gid_entry *ge;
1368
1369         ge = kzalloc(sizeof *ge, GFP_KERNEL);
1370         if (!ge)
1371                 return -ENOMEM;
1372
1373         ge->gid = *gid;
1374         if (mlx4_ib_add_mc(mdev, mqp, gid)) {
1375                 ge->port = mqp->port;
1376                 ge->added = 1;
1377         }
1378
1379         mutex_lock(&mqp->mutex);
1380         list_add_tail(&ge->list, &mqp->gid_list);
1381         mutex_unlock(&mqp->mutex);
1382
1383         return 0;
1384 }
1385
1386 static void mlx4_ib_delete_counters_table(struct mlx4_ib_dev *ibdev,
1387                                           struct mlx4_ib_counters *ctr_table)
1388 {
1389         struct counter_index *counter, *tmp_count;
1390
1391         mutex_lock(&ctr_table->mutex);
1392         list_for_each_entry_safe(counter, tmp_count, &ctr_table->counters_list,
1393                                  list) {
1394                 if (counter->allocated)
1395                         mlx4_counter_free(ibdev->dev, counter->index);
1396                 list_del(&counter->list);
1397                 kfree(counter);
1398         }
1399         mutex_unlock(&ctr_table->mutex);
1400 }
1401
1402 int mlx4_ib_add_mc(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
1403                    union ib_gid *gid)
1404 {
1405         struct net_device *ndev;
1406         int ret = 0;
1407
1408         if (!mqp->port)
1409                 return 0;
1410
1411         spin_lock_bh(&mdev->iboe.lock);
1412         ndev = mdev->iboe.netdevs[mqp->port - 1];
1413         if (ndev)
1414                 dev_hold(ndev);
1415         spin_unlock_bh(&mdev->iboe.lock);
1416
1417         if (ndev) {
1418                 ret = 1;
1419                 dev_put(ndev);
1420         }
1421
1422         return ret;
1423 }
1424
1425 struct mlx4_ib_steering {
1426         struct list_head list;
1427         struct mlx4_flow_reg_id reg_id;
1428         union ib_gid gid;
1429 };
1430
1431 #define LAST_ETH_FIELD vlan_tag
1432 #define LAST_IB_FIELD sl
1433 #define LAST_IPV4_FIELD dst_ip
1434 #define LAST_TCP_UDP_FIELD src_port
1435
1436 /* Field is the last supported field */
1437 #define FIELDS_NOT_SUPPORTED(filter, field)\
1438         memchr_inv((void *)&filter.field  +\
1439                    sizeof(filter.field), 0,\
1440                    sizeof(filter) -\
1441                    offsetof(typeof(filter), field) -\
1442                    sizeof(filter.field))
1443
1444 static int parse_flow_attr(struct mlx4_dev *dev,
1445                            u32 qp_num,
1446                            union ib_flow_spec *ib_spec,
1447                            struct _rule_hw *mlx4_spec)
1448 {
1449         enum mlx4_net_trans_rule_id type;
1450
1451         switch (ib_spec->type) {
1452         case IB_FLOW_SPEC_ETH:
1453                 if (FIELDS_NOT_SUPPORTED(ib_spec->eth.mask, LAST_ETH_FIELD))
1454                         return -ENOTSUPP;
1455
1456                 type = MLX4_NET_TRANS_RULE_ID_ETH;
1457                 memcpy(mlx4_spec->eth.dst_mac, ib_spec->eth.val.dst_mac,
1458                        ETH_ALEN);
1459                 memcpy(mlx4_spec->eth.dst_mac_msk, ib_spec->eth.mask.dst_mac,
1460                        ETH_ALEN);
1461                 mlx4_spec->eth.vlan_tag = ib_spec->eth.val.vlan_tag;
1462                 mlx4_spec->eth.vlan_tag_msk = ib_spec->eth.mask.vlan_tag;
1463                 break;
1464         case IB_FLOW_SPEC_IB:
1465                 if (FIELDS_NOT_SUPPORTED(ib_spec->ib.mask, LAST_IB_FIELD))
1466                         return -ENOTSUPP;
1467
1468                 type = MLX4_NET_TRANS_RULE_ID_IB;
1469                 mlx4_spec->ib.l3_qpn =
1470                         cpu_to_be32(qp_num);
1471                 mlx4_spec->ib.qpn_mask =
1472                         cpu_to_be32(MLX4_IB_FLOW_QPN_MASK);
1473                 break;
1474
1475
1476         case IB_FLOW_SPEC_IPV4:
1477                 if (FIELDS_NOT_SUPPORTED(ib_spec->ipv4.mask, LAST_IPV4_FIELD))
1478                         return -ENOTSUPP;
1479
1480                 type = MLX4_NET_TRANS_RULE_ID_IPV4;
1481                 mlx4_spec->ipv4.src_ip = ib_spec->ipv4.val.src_ip;
1482                 mlx4_spec->ipv4.src_ip_msk = ib_spec->ipv4.mask.src_ip;
1483                 mlx4_spec->ipv4.dst_ip = ib_spec->ipv4.val.dst_ip;
1484                 mlx4_spec->ipv4.dst_ip_msk = ib_spec->ipv4.mask.dst_ip;
1485                 break;
1486
1487         case IB_FLOW_SPEC_TCP:
1488         case IB_FLOW_SPEC_UDP:
1489                 if (FIELDS_NOT_SUPPORTED(ib_spec->tcp_udp.mask, LAST_TCP_UDP_FIELD))
1490                         return -ENOTSUPP;
1491
1492                 type = ib_spec->type == IB_FLOW_SPEC_TCP ?
1493                                         MLX4_NET_TRANS_RULE_ID_TCP :
1494                                         MLX4_NET_TRANS_RULE_ID_UDP;
1495                 mlx4_spec->tcp_udp.dst_port = ib_spec->tcp_udp.val.dst_port;
1496                 mlx4_spec->tcp_udp.dst_port_msk = ib_spec->tcp_udp.mask.dst_port;
1497                 mlx4_spec->tcp_udp.src_port = ib_spec->tcp_udp.val.src_port;
1498                 mlx4_spec->tcp_udp.src_port_msk = ib_spec->tcp_udp.mask.src_port;
1499                 break;
1500
1501         default:
1502                 return -EINVAL;
1503         }
1504         if (mlx4_map_sw_to_hw_steering_id(dev, type) < 0 ||
1505             mlx4_hw_rule_sz(dev, type) < 0)
1506                 return -EINVAL;
1507         mlx4_spec->id = cpu_to_be16(mlx4_map_sw_to_hw_steering_id(dev, type));
1508         mlx4_spec->size = mlx4_hw_rule_sz(dev, type) >> 2;
1509         return mlx4_hw_rule_sz(dev, type);
1510 }
1511
1512 struct default_rules {
1513         __u32 mandatory_fields[IB_FLOW_SPEC_SUPPORT_LAYERS];
1514         __u32 mandatory_not_fields[IB_FLOW_SPEC_SUPPORT_LAYERS];
1515         __u32 rules_create_list[IB_FLOW_SPEC_SUPPORT_LAYERS];
1516         __u8  link_layer;
1517 };
1518 static const struct default_rules default_table[] = {
1519         {
1520                 .mandatory_fields = {IB_FLOW_SPEC_IPV4},
1521                 .mandatory_not_fields = {IB_FLOW_SPEC_ETH},
1522                 .rules_create_list = {IB_FLOW_SPEC_IB},
1523                 .link_layer = IB_LINK_LAYER_INFINIBAND
1524         }
1525 };
1526
1527 static int __mlx4_ib_default_rules_match(struct ib_qp *qp,
1528                                          struct ib_flow_attr *flow_attr)
1529 {
1530         int i, j, k;
1531         void *ib_flow;
1532         const struct default_rules *pdefault_rules = default_table;
1533         u8 link_layer = rdma_port_get_link_layer(qp->device, flow_attr->port);
1534
1535         for (i = 0; i < ARRAY_SIZE(default_table); i++, pdefault_rules++) {
1536                 __u32 field_types[IB_FLOW_SPEC_SUPPORT_LAYERS];
1537                 memset(&field_types, 0, sizeof(field_types));
1538
1539                 if (link_layer != pdefault_rules->link_layer)
1540                         continue;
1541
1542                 ib_flow = flow_attr + 1;
1543                 /* we assume the specs are sorted */
1544                 for (j = 0, k = 0; k < IB_FLOW_SPEC_SUPPORT_LAYERS &&
1545                      j < flow_attr->num_of_specs; k++) {
1546                         union ib_flow_spec *current_flow =
1547                                 (union ib_flow_spec *)ib_flow;
1548
1549                         /* same layer but different type */
1550                         if (((current_flow->type & IB_FLOW_SPEC_LAYER_MASK) ==
1551                              (pdefault_rules->mandatory_fields[k] &
1552                               IB_FLOW_SPEC_LAYER_MASK)) &&
1553                             (current_flow->type !=
1554                              pdefault_rules->mandatory_fields[k]))
1555                                 goto out;
1556
1557                         /* same layer, try match next one */
1558                         if (current_flow->type ==
1559                             pdefault_rules->mandatory_fields[k]) {
1560                                 j++;
1561                                 ib_flow +=
1562                                         ((union ib_flow_spec *)ib_flow)->size;
1563                         }
1564                 }
1565
1566                 ib_flow = flow_attr + 1;
1567                 for (j = 0; j < flow_attr->num_of_specs;
1568                      j++, ib_flow += ((union ib_flow_spec *)ib_flow)->size)
1569                         for (k = 0; k < IB_FLOW_SPEC_SUPPORT_LAYERS; k++)
1570                                 /* same layer and same type */
1571                                 if (((union ib_flow_spec *)ib_flow)->type ==
1572                                     pdefault_rules->mandatory_not_fields[k])
1573                                         goto out;
1574
1575                 return i;
1576         }
1577 out:
1578         return -1;
1579 }
1580
1581 static int __mlx4_ib_create_default_rules(
1582                 struct mlx4_ib_dev *mdev,
1583                 struct ib_qp *qp,
1584                 const struct default_rules *pdefault_rules,
1585                 struct _rule_hw *mlx4_spec) {
1586         int size = 0;
1587         int i;
1588
1589         for (i = 0; i < ARRAY_SIZE(pdefault_rules->rules_create_list); i++) {
1590                 int ret;
1591                 union ib_flow_spec ib_spec;
1592                 switch (pdefault_rules->rules_create_list[i]) {
1593                 case 0:
1594                         /* no rule */
1595                         continue;
1596                 case IB_FLOW_SPEC_IB:
1597                         ib_spec.type = IB_FLOW_SPEC_IB;
1598                         ib_spec.size = sizeof(struct ib_flow_spec_ib);
1599
1600                         break;
1601                 default:
1602                         /* invalid rule */
1603                         return -EINVAL;
1604                 }
1605                 /* We must put empty rule, qpn is being ignored */
1606                 ret = parse_flow_attr(mdev->dev, 0, &ib_spec,
1607                                       mlx4_spec);
1608                 if (ret < 0) {
1609                         pr_info("invalid parsing\n");
1610                         return -EINVAL;
1611                 }
1612
1613                 mlx4_spec = (void *)mlx4_spec + ret;
1614                 size += ret;
1615         }
1616         return size;
1617 }
1618
1619 static int __mlx4_ib_create_flow(struct ib_qp *qp, struct ib_flow_attr *flow_attr,
1620                           int domain,
1621                           enum mlx4_net_trans_promisc_mode flow_type,
1622                           u64 *reg_id)
1623 {
1624         int ret, i;
1625         int size = 0;
1626         void *ib_flow;
1627         struct mlx4_ib_dev *mdev = to_mdev(qp->device);
1628         struct mlx4_cmd_mailbox *mailbox;
1629         struct mlx4_net_trans_rule_hw_ctrl *ctrl;
1630         int default_flow;
1631
1632         static const u16 __mlx4_domain[] = {
1633                 [IB_FLOW_DOMAIN_USER] = MLX4_DOMAIN_UVERBS,
1634                 [IB_FLOW_DOMAIN_ETHTOOL] = MLX4_DOMAIN_ETHTOOL,
1635                 [IB_FLOW_DOMAIN_RFS] = MLX4_DOMAIN_RFS,
1636                 [IB_FLOW_DOMAIN_NIC] = MLX4_DOMAIN_NIC,
1637         };
1638
1639         if (flow_attr->priority > MLX4_IB_FLOW_MAX_PRIO) {
1640                 pr_err("Invalid priority value %d\n", flow_attr->priority);
1641                 return -EINVAL;
1642         }
1643
1644         if (domain >= IB_FLOW_DOMAIN_NUM) {
1645                 pr_err("Invalid domain value %d\n", domain);
1646                 return -EINVAL;
1647         }
1648
1649         if (mlx4_map_sw_to_hw_steering_mode(mdev->dev, flow_type) < 0)
1650                 return -EINVAL;
1651
1652         mailbox = mlx4_alloc_cmd_mailbox(mdev->dev);
1653         if (IS_ERR(mailbox))
1654                 return PTR_ERR(mailbox);
1655         ctrl = mailbox->buf;
1656
1657         ctrl->prio = cpu_to_be16(__mlx4_domain[domain] |
1658                                  flow_attr->priority);
1659         ctrl->type = mlx4_map_sw_to_hw_steering_mode(mdev->dev, flow_type);
1660         ctrl->port = flow_attr->port;
1661         ctrl->qpn = cpu_to_be32(qp->qp_num);
1662
1663         ib_flow = flow_attr + 1;
1664         size += sizeof(struct mlx4_net_trans_rule_hw_ctrl);
1665         /* Add default flows */
1666         default_flow = __mlx4_ib_default_rules_match(qp, flow_attr);
1667         if (default_flow >= 0) {
1668                 ret = __mlx4_ib_create_default_rules(
1669                                 mdev, qp, default_table + default_flow,
1670                                 mailbox->buf + size);
1671                 if (ret < 0) {
1672                         mlx4_free_cmd_mailbox(mdev->dev, mailbox);
1673                         return -EINVAL;
1674                 }
1675                 size += ret;
1676         }
1677         for (i = 0; i < flow_attr->num_of_specs; i++) {
1678                 ret = parse_flow_attr(mdev->dev, qp->qp_num, ib_flow,
1679                                       mailbox->buf + size);
1680                 if (ret < 0) {
1681                         mlx4_free_cmd_mailbox(mdev->dev, mailbox);
1682                         return -EINVAL;
1683                 }
1684                 ib_flow += ((union ib_flow_spec *) ib_flow)->size;
1685                 size += ret;
1686         }
1687
1688         if (mlx4_is_master(mdev->dev) && flow_type == MLX4_FS_REGULAR &&
1689             flow_attr->num_of_specs == 1) {
1690                 struct _rule_hw *rule_header = (struct _rule_hw *)(ctrl + 1);
1691                 enum ib_flow_spec_type header_spec =
1692                         ((union ib_flow_spec *)(flow_attr + 1))->type;
1693
1694                 if (header_spec == IB_FLOW_SPEC_ETH)
1695                         mlx4_handle_eth_header_mcast_prio(ctrl, rule_header);
1696         }
1697
1698         ret = mlx4_cmd_imm(mdev->dev, mailbox->dma, reg_id, size >> 2, 0,
1699                            MLX4_QP_FLOW_STEERING_ATTACH, MLX4_CMD_TIME_CLASS_A,
1700                            MLX4_CMD_NATIVE);
1701         if (ret == -ENOMEM)
1702                 pr_err("mcg table is full. Fail to register network rule.\n");
1703         else if (ret == -ENXIO)
1704                 pr_err("Device managed flow steering is disabled. Fail to register network rule.\n");
1705         else if (ret)
1706                 pr_err("Invalid argument. Fail to register network rule.\n");
1707
1708         mlx4_free_cmd_mailbox(mdev->dev, mailbox);
1709         return ret;
1710 }
1711
1712 static int __mlx4_ib_destroy_flow(struct mlx4_dev *dev, u64 reg_id)
1713 {
1714         int err;
1715         err = mlx4_cmd(dev, reg_id, 0, 0,
1716                        MLX4_QP_FLOW_STEERING_DETACH, MLX4_CMD_TIME_CLASS_A,
1717                        MLX4_CMD_NATIVE);
1718         if (err)
1719                 pr_err("Fail to detach network rule. registration id = 0x%llx\n",
1720                        reg_id);
1721         return err;
1722 }
1723
1724 static int mlx4_ib_tunnel_steer_add(struct ib_qp *qp, struct ib_flow_attr *flow_attr,
1725                                     u64 *reg_id)
1726 {
1727         void *ib_flow;
1728         union ib_flow_spec *ib_spec;
1729         struct mlx4_dev *dev = to_mdev(qp->device)->dev;
1730         int err = 0;
1731
1732         if (dev->caps.tunnel_offload_mode != MLX4_TUNNEL_OFFLOAD_MODE_VXLAN ||
1733             dev->caps.dmfs_high_steer_mode == MLX4_STEERING_DMFS_A0_STATIC)
1734                 return 0; /* do nothing */
1735
1736         ib_flow = flow_attr + 1;
1737         ib_spec = (union ib_flow_spec *)ib_flow;
1738
1739         if (ib_spec->type !=  IB_FLOW_SPEC_ETH || flow_attr->num_of_specs != 1)
1740                 return 0; /* do nothing */
1741
1742         err = mlx4_tunnel_steer_add(to_mdev(qp->device)->dev, ib_spec->eth.val.dst_mac,
1743                                     flow_attr->port, qp->qp_num,
1744                                     MLX4_DOMAIN_UVERBS | (flow_attr->priority & 0xff),
1745                                     reg_id);
1746         return err;
1747 }
1748
1749 static int mlx4_ib_add_dont_trap_rule(struct mlx4_dev *dev,
1750                                       struct ib_flow_attr *flow_attr,
1751                                       enum mlx4_net_trans_promisc_mode *type)
1752 {
1753         int err = 0;
1754
1755         if (!(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_DMFS_UC_MC_SNIFFER) ||
1756             (dev->caps.dmfs_high_steer_mode == MLX4_STEERING_DMFS_A0_STATIC) ||
1757             (flow_attr->num_of_specs > 1) || (flow_attr->priority != 0)) {
1758                 return -EOPNOTSUPP;
1759         }
1760
1761         if (flow_attr->num_of_specs == 0) {
1762                 type[0] = MLX4_FS_MC_SNIFFER;
1763                 type[1] = MLX4_FS_UC_SNIFFER;
1764         } else {
1765                 union ib_flow_spec *ib_spec;
1766
1767                 ib_spec = (union ib_flow_spec *)(flow_attr + 1);
1768                 if (ib_spec->type !=  IB_FLOW_SPEC_ETH)
1769                         return -EINVAL;
1770
1771                 /* if all is zero than MC and UC */
1772                 if (is_zero_ether_addr(ib_spec->eth.mask.dst_mac)) {
1773                         type[0] = MLX4_FS_MC_SNIFFER;
1774                         type[1] = MLX4_FS_UC_SNIFFER;
1775                 } else {
1776                         u8 mac[ETH_ALEN] = {ib_spec->eth.mask.dst_mac[0] ^ 0x01,
1777                                             ib_spec->eth.mask.dst_mac[1],
1778                                             ib_spec->eth.mask.dst_mac[2],
1779                                             ib_spec->eth.mask.dst_mac[3],
1780                                             ib_spec->eth.mask.dst_mac[4],
1781                                             ib_spec->eth.mask.dst_mac[5]};
1782
1783                         /* Above xor was only on MC bit, non empty mask is valid
1784                          * only if this bit is set and rest are zero.
1785                          */
1786                         if (!is_zero_ether_addr(&mac[0]))
1787                                 return -EINVAL;
1788
1789                         if (is_multicast_ether_addr(ib_spec->eth.val.dst_mac))
1790                                 type[0] = MLX4_FS_MC_SNIFFER;
1791                         else
1792                                 type[0] = MLX4_FS_UC_SNIFFER;
1793                 }
1794         }
1795
1796         return err;
1797 }
1798
1799 static struct ib_flow *mlx4_ib_create_flow(struct ib_qp *qp,
1800                                     struct ib_flow_attr *flow_attr,
1801                                     int domain)
1802 {
1803         int err = 0, i = 0, j = 0;
1804         struct mlx4_ib_flow *mflow;
1805         enum mlx4_net_trans_promisc_mode type[2];
1806         struct mlx4_dev *dev = (to_mdev(qp->device))->dev;
1807         int is_bonded = mlx4_is_bonded(dev);
1808
1809         if (flow_attr->port < 1 || flow_attr->port > qp->device->phys_port_cnt)
1810                 return ERR_PTR(-EINVAL);
1811
1812         if ((flow_attr->flags & IB_FLOW_ATTR_FLAGS_DONT_TRAP) &&
1813             (flow_attr->type != IB_FLOW_ATTR_NORMAL))
1814                 return ERR_PTR(-EOPNOTSUPP);
1815
1816         memset(type, 0, sizeof(type));
1817
1818         mflow = kzalloc(sizeof(*mflow), GFP_KERNEL);
1819         if (!mflow) {
1820                 err = -ENOMEM;
1821                 goto err_free;
1822         }
1823
1824         switch (flow_attr->type) {
1825         case IB_FLOW_ATTR_NORMAL:
1826                 /* If dont trap flag (continue match) is set, under specific
1827                  * condition traffic be replicated to given qp,
1828                  * without stealing it
1829                  */
1830                 if (unlikely(flow_attr->flags & IB_FLOW_ATTR_FLAGS_DONT_TRAP)) {
1831                         err = mlx4_ib_add_dont_trap_rule(dev,
1832                                                          flow_attr,
1833                                                          type);
1834                         if (err)
1835                                 goto err_free;
1836                 } else {
1837                         type[0] = MLX4_FS_REGULAR;
1838                 }
1839                 break;
1840
1841         case IB_FLOW_ATTR_ALL_DEFAULT:
1842                 type[0] = MLX4_FS_ALL_DEFAULT;
1843                 break;
1844
1845         case IB_FLOW_ATTR_MC_DEFAULT:
1846                 type[0] = MLX4_FS_MC_DEFAULT;
1847                 break;
1848
1849         case IB_FLOW_ATTR_SNIFFER:
1850                 type[0] = MLX4_FS_MIRROR_RX_PORT;
1851                 type[1] = MLX4_FS_MIRROR_SX_PORT;
1852                 break;
1853
1854         default:
1855                 err = -EINVAL;
1856                 goto err_free;
1857         }
1858
1859         while (i < ARRAY_SIZE(type) && type[i]) {
1860                 err = __mlx4_ib_create_flow(qp, flow_attr, domain, type[i],
1861                                             &mflow->reg_id[i].id);
1862                 if (err)
1863                         goto err_create_flow;
1864                 if (is_bonded) {
1865                         /* Application always sees one port so the mirror rule
1866                          * must be on port #2
1867                          */
1868                         flow_attr->port = 2;
1869                         err = __mlx4_ib_create_flow(qp, flow_attr,
1870                                                     domain, type[j],
1871                                                     &mflow->reg_id[j].mirror);
1872                         flow_attr->port = 1;
1873                         if (err)
1874                                 goto err_create_flow;
1875                         j++;
1876                 }
1877
1878                 i++;
1879         }
1880
1881         if (i < ARRAY_SIZE(type) && flow_attr->type == IB_FLOW_ATTR_NORMAL) {
1882                 err = mlx4_ib_tunnel_steer_add(qp, flow_attr,
1883                                                &mflow->reg_id[i].id);
1884                 if (err)
1885                         goto err_create_flow;
1886
1887                 if (is_bonded) {
1888                         flow_attr->port = 2;
1889                         err = mlx4_ib_tunnel_steer_add(qp, flow_attr,
1890                                                        &mflow->reg_id[j].mirror);
1891                         flow_attr->port = 1;
1892                         if (err)
1893                                 goto err_create_flow;
1894                         j++;
1895                 }
1896                 /* function to create mirror rule */
1897                 i++;
1898         }
1899
1900         return &mflow->ibflow;
1901
1902 err_create_flow:
1903         while (i) {
1904                 (void)__mlx4_ib_destroy_flow(to_mdev(qp->device)->dev,
1905                                              mflow->reg_id[i].id);
1906                 i--;
1907         }
1908
1909         while (j) {
1910                 (void)__mlx4_ib_destroy_flow(to_mdev(qp->device)->dev,
1911                                              mflow->reg_id[j].mirror);
1912                 j--;
1913         }
1914 err_free:
1915         kfree(mflow);
1916         return ERR_PTR(err);
1917 }
1918
1919 static int mlx4_ib_destroy_flow(struct ib_flow *flow_id)
1920 {
1921         int err, ret = 0;
1922         int i = 0;
1923         struct mlx4_ib_dev *mdev = to_mdev(flow_id->qp->device);
1924         struct mlx4_ib_flow *mflow = to_mflow(flow_id);
1925
1926         while (i < ARRAY_SIZE(mflow->reg_id) && mflow->reg_id[i].id) {
1927                 err = __mlx4_ib_destroy_flow(mdev->dev, mflow->reg_id[i].id);
1928                 if (err)
1929                         ret = err;
1930                 if (mflow->reg_id[i].mirror) {
1931                         err = __mlx4_ib_destroy_flow(mdev->dev,
1932                                                      mflow->reg_id[i].mirror);
1933                         if (err)
1934                                 ret = err;
1935                 }
1936                 i++;
1937         }
1938
1939         kfree(mflow);
1940         return ret;
1941 }
1942
1943 static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
1944 {
1945         int err;
1946         struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
1947         struct mlx4_dev *dev = mdev->dev;
1948         struct mlx4_ib_qp *mqp = to_mqp(ibqp);
1949         struct mlx4_ib_steering *ib_steering = NULL;
1950         enum mlx4_protocol prot = MLX4_PROT_IB_IPV6;
1951         struct mlx4_flow_reg_id reg_id;
1952
1953         if (mdev->dev->caps.steering_mode ==
1954             MLX4_STEERING_MODE_DEVICE_MANAGED) {
1955                 ib_steering = kmalloc(sizeof(*ib_steering), GFP_KERNEL);
1956                 if (!ib_steering)
1957                         return -ENOMEM;
1958         }
1959
1960         err = mlx4_multicast_attach(mdev->dev, &mqp->mqp, gid->raw, mqp->port,
1961                                     !!(mqp->flags &
1962                                        MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK),
1963                                     prot, &reg_id.id);
1964         if (err) {
1965                 pr_err("multicast attach op failed, err %d\n", err);
1966                 goto err_malloc;
1967         }
1968
1969         reg_id.mirror = 0;
1970         if (mlx4_is_bonded(dev)) {
1971                 err = mlx4_multicast_attach(mdev->dev, &mqp->mqp, gid->raw,
1972                                             (mqp->port == 1) ? 2 : 1,
1973                                             !!(mqp->flags &
1974                                             MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK),
1975                                             prot, &reg_id.mirror);
1976                 if (err)
1977                         goto err_add;
1978         }
1979
1980         err = add_gid_entry(ibqp, gid);
1981         if (err)
1982                 goto err_add;
1983
1984         if (ib_steering) {
1985                 memcpy(ib_steering->gid.raw, gid->raw, 16);
1986                 ib_steering->reg_id = reg_id;
1987                 mutex_lock(&mqp->mutex);
1988                 list_add(&ib_steering->list, &mqp->steering_rules);
1989                 mutex_unlock(&mqp->mutex);
1990         }
1991         return 0;
1992
1993 err_add:
1994         mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw,
1995                               prot, reg_id.id);
1996         if (reg_id.mirror)
1997                 mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw,
1998                                       prot, reg_id.mirror);
1999 err_malloc:
2000         kfree(ib_steering);
2001
2002         return err;
2003 }
2004
2005 static struct mlx4_ib_gid_entry *find_gid_entry(struct mlx4_ib_qp *qp, u8 *raw)
2006 {
2007         struct mlx4_ib_gid_entry *ge;
2008         struct mlx4_ib_gid_entry *tmp;
2009         struct mlx4_ib_gid_entry *ret = NULL;
2010
2011         list_for_each_entry_safe(ge, tmp, &qp->gid_list, list) {
2012                 if (!memcmp(raw, ge->gid.raw, 16)) {
2013                         ret = ge;
2014                         break;
2015                 }
2016         }
2017
2018         return ret;
2019 }
2020
2021 static int mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
2022 {
2023         int err;
2024         struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
2025         struct mlx4_dev *dev = mdev->dev;
2026         struct mlx4_ib_qp *mqp = to_mqp(ibqp);
2027         struct net_device *ndev;
2028         struct mlx4_ib_gid_entry *ge;
2029         struct mlx4_flow_reg_id reg_id = {0, 0};
2030         enum mlx4_protocol prot =  MLX4_PROT_IB_IPV6;
2031
2032         if (mdev->dev->caps.steering_mode ==
2033             MLX4_STEERING_MODE_DEVICE_MANAGED) {
2034                 struct mlx4_ib_steering *ib_steering;
2035
2036                 mutex_lock(&mqp->mutex);
2037                 list_for_each_entry(ib_steering, &mqp->steering_rules, list) {
2038                         if (!memcmp(ib_steering->gid.raw, gid->raw, 16)) {
2039                                 list_del(&ib_steering->list);
2040                                 break;
2041                         }
2042                 }
2043                 mutex_unlock(&mqp->mutex);
2044                 if (&ib_steering->list == &mqp->steering_rules) {
2045                         pr_err("Couldn't find reg_id for mgid. Steering rule is left attached\n");
2046                         return -EINVAL;
2047                 }
2048                 reg_id = ib_steering->reg_id;
2049                 kfree(ib_steering);
2050         }
2051
2052         err = mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw,
2053                                     prot, reg_id.id);
2054         if (err)
2055                 return err;
2056
2057         if (mlx4_is_bonded(dev)) {
2058                 err = mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw,
2059                                             prot, reg_id.mirror);
2060                 if (err)
2061                         return err;
2062         }
2063
2064         mutex_lock(&mqp->mutex);
2065         ge = find_gid_entry(mqp, gid->raw);
2066         if (ge) {
2067                 spin_lock_bh(&mdev->iboe.lock);
2068                 ndev = ge->added ? mdev->iboe.netdevs[ge->port - 1] : NULL;
2069                 if (ndev)
2070                         dev_hold(ndev);
2071                 spin_unlock_bh(&mdev->iboe.lock);
2072                 if (ndev)
2073                         dev_put(ndev);
2074                 list_del(&ge->list);
2075                 kfree(ge);
2076         } else
2077                 pr_warn("could not find mgid entry\n");
2078
2079         mutex_unlock(&mqp->mutex);
2080
2081         return 0;
2082 }
2083
2084 static int init_node_data(struct mlx4_ib_dev *dev)
2085 {
2086         struct ib_smp *in_mad  = NULL;
2087         struct ib_smp *out_mad = NULL;
2088         int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
2089         int err = -ENOMEM;
2090
2091         in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
2092         out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
2093         if (!in_mad || !out_mad)
2094                 goto out;
2095
2096         init_query_mad(in_mad);
2097         in_mad->attr_id = IB_SMP_ATTR_NODE_DESC;
2098         if (mlx4_is_master(dev->dev))
2099                 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
2100
2101         err = mlx4_MAD_IFC(dev, mad_ifc_flags, 1, NULL, NULL, in_mad, out_mad);
2102         if (err)
2103                 goto out;
2104
2105         memcpy(dev->ib_dev.node_desc, out_mad->data, IB_DEVICE_NODE_DESC_MAX);
2106
2107         in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
2108
2109         err = mlx4_MAD_IFC(dev, mad_ifc_flags, 1, NULL, NULL, in_mad, out_mad);
2110         if (err)
2111                 goto out;
2112
2113         dev->dev->rev_id = be32_to_cpup((__be32 *) (out_mad->data + 32));
2114         memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8);
2115
2116 out:
2117         kfree(in_mad);
2118         kfree(out_mad);
2119         return err;
2120 }
2121
2122 static ssize_t show_hca(struct device *device, struct device_attribute *attr,
2123                         char *buf)
2124 {
2125         struct mlx4_ib_dev *dev =
2126                 container_of(device, struct mlx4_ib_dev, ib_dev.dev);
2127         return sprintf(buf, "MT%d\n", dev->dev->persist->pdev->device);
2128 }
2129
2130 static ssize_t show_rev(struct device *device, struct device_attribute *attr,
2131                         char *buf)
2132 {
2133         struct mlx4_ib_dev *dev =
2134                 container_of(device, struct mlx4_ib_dev, ib_dev.dev);
2135         return sprintf(buf, "%x\n", dev->dev->rev_id);
2136 }
2137
2138 static ssize_t show_board(struct device *device, struct device_attribute *attr,
2139                           char *buf)
2140 {
2141         struct mlx4_ib_dev *dev =
2142                 container_of(device, struct mlx4_ib_dev, ib_dev.dev);
2143         return sprintf(buf, "%.*s\n", MLX4_BOARD_ID_LEN,
2144                        dev->dev->board_id);
2145 }
2146
2147 static DEVICE_ATTR(hw_rev,   S_IRUGO, show_rev,    NULL);
2148 static DEVICE_ATTR(hca_type, S_IRUGO, show_hca,    NULL);
2149 static DEVICE_ATTR(board_id, S_IRUGO, show_board,  NULL);
2150
2151 static struct device_attribute *mlx4_class_attributes[] = {
2152         &dev_attr_hw_rev,
2153         &dev_attr_hca_type,
2154         &dev_attr_board_id
2155 };
2156
2157 struct diag_counter {
2158         const char *name;
2159         u32 offset;
2160 };
2161
2162 #define DIAG_COUNTER(_name, _offset)                    \
2163         { .name = #_name, .offset = _offset }
2164
2165 static const struct diag_counter diag_basic[] = {
2166         DIAG_COUNTER(rq_num_lle, 0x00),
2167         DIAG_COUNTER(sq_num_lle, 0x04),
2168         DIAG_COUNTER(rq_num_lqpoe, 0x08),
2169         DIAG_COUNTER(sq_num_lqpoe, 0x0C),
2170         DIAG_COUNTER(rq_num_lpe, 0x18),
2171         DIAG_COUNTER(sq_num_lpe, 0x1C),
2172         DIAG_COUNTER(rq_num_wrfe, 0x20),
2173         DIAG_COUNTER(sq_num_wrfe, 0x24),
2174         DIAG_COUNTER(sq_num_mwbe, 0x2C),
2175         DIAG_COUNTER(sq_num_bre, 0x34),
2176         DIAG_COUNTER(sq_num_rire, 0x44),
2177         DIAG_COUNTER(rq_num_rire, 0x48),
2178         DIAG_COUNTER(sq_num_rae, 0x4C),
2179         DIAG_COUNTER(rq_num_rae, 0x50),
2180         DIAG_COUNTER(sq_num_roe, 0x54),
2181         DIAG_COUNTER(sq_num_tree, 0x5C),
2182         DIAG_COUNTER(sq_num_rree, 0x64),
2183         DIAG_COUNTER(rq_num_rnr, 0x68),
2184         DIAG_COUNTER(sq_num_rnr, 0x6C),
2185         DIAG_COUNTER(rq_num_oos, 0x100),
2186         DIAG_COUNTER(sq_num_oos, 0x104),
2187 };
2188
2189 static const struct diag_counter diag_ext[] = {
2190         DIAG_COUNTER(rq_num_dup, 0x130),
2191         DIAG_COUNTER(sq_num_to, 0x134),
2192 };
2193
2194 static const struct diag_counter diag_device_only[] = {
2195         DIAG_COUNTER(num_cqovf, 0x1A0),
2196         DIAG_COUNTER(rq_num_udsdprd, 0x118),
2197 };
2198
2199 static struct rdma_hw_stats *mlx4_ib_alloc_hw_stats(struct ib_device *ibdev,
2200                                                     u8 port_num)
2201 {
2202         struct mlx4_ib_dev *dev = to_mdev(ibdev);
2203         struct mlx4_ib_diag_counters *diag = dev->diag_counters;
2204
2205         if (!diag[!!port_num].name)
2206                 return NULL;
2207
2208         return rdma_alloc_hw_stats_struct(diag[!!port_num].name,
2209                                           diag[!!port_num].num_counters,
2210                                           RDMA_HW_STATS_DEFAULT_LIFESPAN);
2211 }
2212
2213 static int mlx4_ib_get_hw_stats(struct ib_device *ibdev,
2214                                 struct rdma_hw_stats *stats,
2215                                 u8 port, int index)
2216 {
2217         struct mlx4_ib_dev *dev = to_mdev(ibdev);
2218         struct mlx4_ib_diag_counters *diag = dev->diag_counters;
2219         u32 hw_value[ARRAY_SIZE(diag_device_only) +
2220                 ARRAY_SIZE(diag_ext) + ARRAY_SIZE(diag_basic)] = {};
2221         int ret;
2222         int i;
2223
2224         ret = mlx4_query_diag_counters(dev->dev,
2225                                        MLX4_OP_MOD_QUERY_TRANSPORT_CI_ERRORS,
2226                                        diag[!!port].offset, hw_value,
2227                                        diag[!!port].num_counters, port);
2228
2229         if (ret)
2230                 return ret;
2231
2232         for (i = 0; i < diag[!!port].num_counters; i++)
2233                 stats->value[i] = hw_value[i];
2234
2235         return diag[!!port].num_counters;
2236 }
2237
2238 static int __mlx4_ib_alloc_diag_counters(struct mlx4_ib_dev *ibdev,
2239                                          const char ***name,
2240                                          u32 **offset,
2241                                          u32 *num,
2242                                          bool port)
2243 {
2244         u32 num_counters;
2245
2246         num_counters = ARRAY_SIZE(diag_basic);
2247
2248         if (ibdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_DIAG_PER_PORT)
2249                 num_counters += ARRAY_SIZE(diag_ext);
2250
2251         if (!port)
2252                 num_counters += ARRAY_SIZE(diag_device_only);
2253
2254         *name = kcalloc(num_counters, sizeof(**name), GFP_KERNEL);
2255         if (!*name)
2256                 return -ENOMEM;
2257
2258         *offset = kcalloc(num_counters, sizeof(**offset), GFP_KERNEL);
2259         if (!*offset)
2260                 goto err_name;
2261
2262         *num = num_counters;
2263
2264         return 0;
2265
2266 err_name:
2267         kfree(*name);
2268         return -ENOMEM;
2269 }
2270
2271 static void mlx4_ib_fill_diag_counters(struct mlx4_ib_dev *ibdev,
2272                                        const char **name,
2273                                        u32 *offset,
2274                                        bool port)
2275 {
2276         int i;
2277         int j;
2278
2279         for (i = 0, j = 0; i < ARRAY_SIZE(diag_basic); i++, j++) {
2280                 name[i] = diag_basic[i].name;
2281                 offset[i] = diag_basic[i].offset;
2282         }
2283
2284         if (ibdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_DIAG_PER_PORT) {
2285                 for (i = 0; i < ARRAY_SIZE(diag_ext); i++, j++) {
2286                         name[j] = diag_ext[i].name;
2287                         offset[j] = diag_ext[i].offset;
2288                 }
2289         }
2290
2291         if (!port) {
2292                 for (i = 0; i < ARRAY_SIZE(diag_device_only); i++, j++) {
2293                         name[j] = diag_device_only[i].name;
2294                         offset[j] = diag_device_only[i].offset;
2295                 }
2296         }
2297 }
2298
2299 static int mlx4_ib_alloc_diag_counters(struct mlx4_ib_dev *ibdev)
2300 {
2301         struct mlx4_ib_diag_counters *diag = ibdev->diag_counters;
2302         int i;
2303         int ret;
2304         bool per_port = !!(ibdev->dev->caps.flags2 &
2305                 MLX4_DEV_CAP_FLAG2_DIAG_PER_PORT);
2306
2307         if (mlx4_is_slave(ibdev->dev))
2308                 return 0;
2309
2310         for (i = 0; i < MLX4_DIAG_COUNTERS_TYPES; i++) {
2311                 /* i == 1 means we are building port counters */
2312                 if (i && !per_port)
2313                         continue;
2314
2315                 ret = __mlx4_ib_alloc_diag_counters(ibdev, &diag[i].name,
2316                                                     &diag[i].offset,
2317                                                     &diag[i].num_counters, i);
2318                 if (ret)
2319                         goto err_alloc;
2320
2321                 mlx4_ib_fill_diag_counters(ibdev, diag[i].name,
2322                                            diag[i].offset, i);
2323         }
2324
2325         ibdev->ib_dev.get_hw_stats      = mlx4_ib_get_hw_stats;
2326         ibdev->ib_dev.alloc_hw_stats    = mlx4_ib_alloc_hw_stats;
2327
2328         return 0;
2329
2330 err_alloc:
2331         if (i) {
2332                 kfree(diag[i - 1].name);
2333                 kfree(diag[i - 1].offset);
2334         }
2335
2336         return ret;
2337 }
2338
2339 static void mlx4_ib_diag_cleanup(struct mlx4_ib_dev *ibdev)
2340 {
2341         int i;
2342
2343         for (i = 0; i < MLX4_DIAG_COUNTERS_TYPES; i++) {
2344                 kfree(ibdev->diag_counters[i].offset);
2345                 kfree(ibdev->diag_counters[i].name);
2346         }
2347 }
2348
2349 #define MLX4_IB_INVALID_MAC     ((u64)-1)
2350 static void mlx4_ib_update_qps(struct mlx4_ib_dev *ibdev,
2351                                struct net_device *dev,
2352                                int port)
2353 {
2354         u64 new_smac = 0;
2355         u64 release_mac = MLX4_IB_INVALID_MAC;
2356         struct mlx4_ib_qp *qp;
2357
2358         read_lock(&dev_base_lock);
2359         new_smac = mlx4_mac_to_u64(dev->dev_addr);
2360         read_unlock(&dev_base_lock);
2361
2362         atomic64_set(&ibdev->iboe.mac[port - 1], new_smac);
2363
2364         /* no need for update QP1 and mac registration in non-SRIOV */
2365         if (!mlx4_is_mfunc(ibdev->dev))
2366                 return;
2367
2368         mutex_lock(&ibdev->qp1_proxy_lock[port - 1]);
2369         qp = ibdev->qp1_proxy[port - 1];
2370         if (qp) {
2371                 int new_smac_index;
2372                 u64 old_smac;
2373                 struct mlx4_update_qp_params update_params;
2374
2375                 mutex_lock(&qp->mutex);
2376                 old_smac = qp->pri.smac;
2377                 if (new_smac == old_smac)
2378                         goto unlock;
2379
2380                 new_smac_index = mlx4_register_mac(ibdev->dev, port, new_smac);
2381
2382                 if (new_smac_index < 0)
2383                         goto unlock;
2384
2385                 update_params.smac_index = new_smac_index;
2386                 if (mlx4_update_qp(ibdev->dev, qp->mqp.qpn, MLX4_UPDATE_QP_SMAC,
2387                                    &update_params)) {
2388                         release_mac = new_smac;
2389                         goto unlock;
2390                 }
2391                 /* if old port was zero, no mac was yet registered for this QP */
2392                 if (qp->pri.smac_port)
2393                         release_mac = old_smac;
2394                 qp->pri.smac = new_smac;
2395                 qp->pri.smac_port = port;
2396                 qp->pri.smac_index = new_smac_index;
2397         }
2398
2399 unlock:
2400         if (release_mac != MLX4_IB_INVALID_MAC)
2401                 mlx4_unregister_mac(ibdev->dev, port, release_mac);
2402         if (qp)
2403                 mutex_unlock(&qp->mutex);
2404         mutex_unlock(&ibdev->qp1_proxy_lock[port - 1]);
2405 }
2406
2407 static void mlx4_ib_scan_netdevs(struct mlx4_ib_dev *ibdev,
2408                                  struct net_device *dev,
2409                                  unsigned long event)
2410
2411 {
2412         struct mlx4_ib_iboe *iboe;
2413         int update_qps_port = -1;
2414         int port;
2415
2416         ASSERT_RTNL();
2417
2418         iboe = &ibdev->iboe;
2419
2420         spin_lock_bh(&iboe->lock);
2421         mlx4_foreach_ib_transport_port(port, ibdev->dev) {
2422
2423                 iboe->netdevs[port - 1] =
2424                         mlx4_get_protocol_dev(ibdev->dev, MLX4_PROT_ETH, port);
2425
2426                 if (dev == iboe->netdevs[port - 1] &&
2427                     (event == NETDEV_CHANGEADDR || event == NETDEV_REGISTER ||
2428                      event == NETDEV_UP || event == NETDEV_CHANGE))
2429                         update_qps_port = port;
2430
2431         }
2432         spin_unlock_bh(&iboe->lock);
2433
2434         if (update_qps_port > 0)
2435                 mlx4_ib_update_qps(ibdev, dev, update_qps_port);
2436 }
2437
2438 static int mlx4_ib_netdev_event(struct notifier_block *this,
2439                                 unsigned long event, void *ptr)
2440 {
2441         struct net_device *dev = netdev_notifier_info_to_dev(ptr);
2442         struct mlx4_ib_dev *ibdev;
2443
2444         if (!net_eq(dev_net(dev), &init_net))
2445                 return NOTIFY_DONE;
2446
2447         ibdev = container_of(this, struct mlx4_ib_dev, iboe.nb);
2448         mlx4_ib_scan_netdevs(ibdev, dev, event);
2449
2450         return NOTIFY_DONE;
2451 }
2452
2453 static void init_pkeys(struct mlx4_ib_dev *ibdev)
2454 {
2455         int port;
2456         int slave;
2457         int i;
2458
2459         if (mlx4_is_master(ibdev->dev)) {
2460                 for (slave = 0; slave <= ibdev->dev->persist->num_vfs;
2461                      ++slave) {
2462                         for (port = 1; port <= ibdev->dev->caps.num_ports; ++port) {
2463                                 for (i = 0;
2464                                      i < ibdev->dev->phys_caps.pkey_phys_table_len[port];
2465                                      ++i) {
2466                                         ibdev->pkeys.virt2phys_pkey[slave][port - 1][i] =
2467                                         /* master has the identity virt2phys pkey mapping */
2468                                                 (slave == mlx4_master_func_num(ibdev->dev) || !i) ? i :
2469                                                         ibdev->dev->phys_caps.pkey_phys_table_len[port] - 1;
2470                                         mlx4_sync_pkey_table(ibdev->dev, slave, port, i,
2471                                                              ibdev->pkeys.virt2phys_pkey[slave][port - 1][i]);
2472                                 }
2473                         }
2474                 }
2475                 /* initialize pkey cache */
2476                 for (port = 1; port <= ibdev->dev->caps.num_ports; ++port) {
2477                         for (i = 0;
2478                              i < ibdev->dev->phys_caps.pkey_phys_table_len[port];
2479                              ++i)
2480                                 ibdev->pkeys.phys_pkey_cache[port-1][i] =
2481                                         (i) ? 0 : 0xFFFF;
2482                 }
2483         }
2484 }
2485
2486 static void mlx4_ib_alloc_eqs(struct mlx4_dev *dev, struct mlx4_ib_dev *ibdev)
2487 {
2488         int i, j, eq = 0, total_eqs = 0;
2489
2490         ibdev->eq_table = kcalloc(dev->caps.num_comp_vectors,
2491                                   sizeof(ibdev->eq_table[0]), GFP_KERNEL);
2492         if (!ibdev->eq_table)
2493                 return;
2494
2495         for (i = 1; i <= dev->caps.num_ports; i++) {
2496                 for (j = 0; j < mlx4_get_eqs_per_port(dev, i);
2497                      j++, total_eqs++) {
2498                         if (i > 1 &&  mlx4_is_eq_shared(dev, total_eqs))
2499                                 continue;
2500                         ibdev->eq_table[eq] = total_eqs;
2501                         if (!mlx4_assign_eq(dev, i,
2502                                             &ibdev->eq_table[eq]))
2503                                 eq++;
2504                         else
2505                                 ibdev->eq_table[eq] = -1;
2506                 }
2507         }
2508
2509         for (i = eq; i < dev->caps.num_comp_vectors;
2510              ibdev->eq_table[i++] = -1)
2511                 ;
2512
2513         /* Advertise the new number of EQs to clients */
2514         ibdev->ib_dev.num_comp_vectors = eq;
2515 }
2516
2517 static void mlx4_ib_free_eqs(struct mlx4_dev *dev, struct mlx4_ib_dev *ibdev)
2518 {
2519         int i;
2520         int total_eqs = ibdev->ib_dev.num_comp_vectors;
2521
2522         /* no eqs were allocated */
2523         if (!ibdev->eq_table)
2524                 return;
2525
2526         /* Reset the advertised EQ number */
2527         ibdev->ib_dev.num_comp_vectors = 0;
2528
2529         for (i = 0; i < total_eqs; i++)
2530                 mlx4_release_eq(dev, ibdev->eq_table[i]);
2531
2532         kfree(ibdev->eq_table);
2533         ibdev->eq_table = NULL;
2534 }
2535
2536 static int mlx4_port_immutable(struct ib_device *ibdev, u8 port_num,
2537                                struct ib_port_immutable *immutable)
2538 {
2539         struct ib_port_attr attr;
2540         struct mlx4_ib_dev *mdev = to_mdev(ibdev);
2541         int err;
2542
2543         if (mlx4_ib_port_link_layer(ibdev, port_num) == IB_LINK_LAYER_INFINIBAND) {
2544                 immutable->core_cap_flags = RDMA_CORE_PORT_IBA_IB;
2545                 immutable->max_mad_size = IB_MGMT_MAD_SIZE;
2546         } else {
2547                 if (mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_IBOE)
2548                         immutable->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE;
2549                 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ROCE_V1_V2)
2550                         immutable->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE |
2551                                 RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP;
2552                 immutable->core_cap_flags |= RDMA_CORE_PORT_RAW_PACKET;
2553                 if (immutable->core_cap_flags & (RDMA_CORE_PORT_IBA_ROCE |
2554                     RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP))
2555                         immutable->max_mad_size = IB_MGMT_MAD_SIZE;
2556         }
2557
2558         err = ib_query_port(ibdev, port_num, &attr);
2559         if (err)
2560                 return err;
2561
2562         immutable->pkey_tbl_len = attr.pkey_tbl_len;
2563         immutable->gid_tbl_len = attr.gid_tbl_len;
2564
2565         return 0;
2566 }
2567
2568 static void get_fw_ver_str(struct ib_device *device, char *str,
2569                            size_t str_len)
2570 {
2571         struct mlx4_ib_dev *dev =
2572                 container_of(device, struct mlx4_ib_dev, ib_dev);
2573         snprintf(str, str_len, "%d.%d.%d",
2574                  (int) (dev->dev->caps.fw_ver >> 32),
2575                  (int) (dev->dev->caps.fw_ver >> 16) & 0xffff,
2576                  (int) dev->dev->caps.fw_ver & 0xffff);
2577 }
2578
2579 static void *mlx4_ib_add(struct mlx4_dev *dev)
2580 {
2581         struct mlx4_ib_dev *ibdev;
2582         int num_ports = 0;
2583         int i, j;
2584         int err;
2585         struct mlx4_ib_iboe *iboe;
2586         int ib_num_ports = 0;
2587         int num_req_counters;
2588         int allocated;
2589         u32 counter_index;
2590         struct counter_index *new_counter_index = NULL;
2591
2592         pr_info_once("%s", mlx4_ib_version);
2593
2594         num_ports = 0;
2595         mlx4_foreach_ib_transport_port(i, dev)
2596                 num_ports++;
2597
2598         /* No point in registering a device with no ports... */
2599         if (num_ports == 0)
2600                 return NULL;
2601
2602         ibdev = (struct mlx4_ib_dev *) ib_alloc_device(sizeof *ibdev);
2603         if (!ibdev) {
2604                 dev_err(&dev->persist->pdev->dev,
2605                         "Device struct alloc failed\n");
2606                 return NULL;
2607         }
2608
2609         iboe = &ibdev->iboe;
2610
2611         if (mlx4_pd_alloc(dev, &ibdev->priv_pdn))
2612                 goto err_dealloc;
2613
2614         if (mlx4_uar_alloc(dev, &ibdev->priv_uar))
2615                 goto err_pd;
2616
2617         ibdev->uar_map = ioremap((phys_addr_t) ibdev->priv_uar.pfn << PAGE_SHIFT,
2618                                  PAGE_SIZE);
2619         if (!ibdev->uar_map)
2620                 goto err_uar;
2621         MLX4_INIT_DOORBELL_LOCK(&ibdev->uar_lock);
2622
2623         ibdev->dev = dev;
2624         ibdev->bond_next_port   = 0;
2625
2626         strlcpy(ibdev->ib_dev.name, "mlx4_%d", IB_DEVICE_NAME_MAX);
2627         ibdev->ib_dev.owner             = THIS_MODULE;
2628         ibdev->ib_dev.node_type         = RDMA_NODE_IB_CA;
2629         ibdev->ib_dev.local_dma_lkey    = dev->caps.reserved_lkey;
2630         ibdev->num_ports                = num_ports;
2631         ibdev->ib_dev.phys_port_cnt     = mlx4_is_bonded(dev) ?
2632                                                 1 : ibdev->num_ports;
2633         ibdev->ib_dev.num_comp_vectors  = dev->caps.num_comp_vectors;
2634         ibdev->ib_dev.dev.parent        = &dev->persist->pdev->dev;
2635         ibdev->ib_dev.get_netdev        = mlx4_ib_get_netdev;
2636         ibdev->ib_dev.add_gid           = mlx4_ib_add_gid;
2637         ibdev->ib_dev.del_gid           = mlx4_ib_del_gid;
2638
2639         if (dev->caps.userspace_caps)
2640                 ibdev->ib_dev.uverbs_abi_ver = MLX4_IB_UVERBS_ABI_VERSION;
2641         else
2642                 ibdev->ib_dev.uverbs_abi_ver = MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION;
2643
2644         ibdev->ib_dev.uverbs_cmd_mask   =
2645                 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT)         |
2646                 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE)        |
2647                 (1ull << IB_USER_VERBS_CMD_QUERY_PORT)          |
2648                 (1ull << IB_USER_VERBS_CMD_ALLOC_PD)            |
2649                 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD)          |
2650                 (1ull << IB_USER_VERBS_CMD_REG_MR)              |
2651                 (1ull << IB_USER_VERBS_CMD_REREG_MR)            |
2652                 (1ull << IB_USER_VERBS_CMD_DEREG_MR)            |
2653                 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
2654                 (1ull << IB_USER_VERBS_CMD_CREATE_CQ)           |
2655                 (1ull << IB_USER_VERBS_CMD_RESIZE_CQ)           |
2656                 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ)          |
2657                 (1ull << IB_USER_VERBS_CMD_CREATE_QP)           |
2658                 (1ull << IB_USER_VERBS_CMD_MODIFY_QP)           |
2659                 (1ull << IB_USER_VERBS_CMD_QUERY_QP)            |
2660                 (1ull << IB_USER_VERBS_CMD_DESTROY_QP)          |
2661                 (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST)        |
2662                 (1ull << IB_USER_VERBS_CMD_DETACH_MCAST)        |
2663                 (1ull << IB_USER_VERBS_CMD_CREATE_SRQ)          |
2664                 (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ)          |
2665                 (1ull << IB_USER_VERBS_CMD_QUERY_SRQ)           |
2666                 (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ)         |
2667                 (1ull << IB_USER_VERBS_CMD_CREATE_XSRQ)         |
2668                 (1ull << IB_USER_VERBS_CMD_OPEN_QP);
2669
2670         ibdev->ib_dev.query_device      = mlx4_ib_query_device;
2671         ibdev->ib_dev.query_port        = mlx4_ib_query_port;
2672         ibdev->ib_dev.get_link_layer    = mlx4_ib_port_link_layer;
2673         ibdev->ib_dev.query_gid         = mlx4_ib_query_gid;
2674         ibdev->ib_dev.query_pkey        = mlx4_ib_query_pkey;
2675         ibdev->ib_dev.modify_device     = mlx4_ib_modify_device;
2676         ibdev->ib_dev.modify_port       = mlx4_ib_modify_port;
2677         ibdev->ib_dev.alloc_ucontext    = mlx4_ib_alloc_ucontext;
2678         ibdev->ib_dev.dealloc_ucontext  = mlx4_ib_dealloc_ucontext;
2679         ibdev->ib_dev.mmap              = mlx4_ib_mmap;
2680         ibdev->ib_dev.alloc_pd          = mlx4_ib_alloc_pd;
2681         ibdev->ib_dev.dealloc_pd        = mlx4_ib_dealloc_pd;
2682         ibdev->ib_dev.create_ah         = mlx4_ib_create_ah;
2683         ibdev->ib_dev.query_ah          = mlx4_ib_query_ah;
2684         ibdev->ib_dev.destroy_ah        = mlx4_ib_destroy_ah;
2685         ibdev->ib_dev.create_srq        = mlx4_ib_create_srq;
2686         ibdev->ib_dev.modify_srq        = mlx4_ib_modify_srq;
2687         ibdev->ib_dev.query_srq         = mlx4_ib_query_srq;
2688         ibdev->ib_dev.destroy_srq       = mlx4_ib_destroy_srq;
2689         ibdev->ib_dev.post_srq_recv     = mlx4_ib_post_srq_recv;
2690         ibdev->ib_dev.create_qp         = mlx4_ib_create_qp;
2691         ibdev->ib_dev.modify_qp         = mlx4_ib_modify_qp;
2692         ibdev->ib_dev.query_qp          = mlx4_ib_query_qp;
2693         ibdev->ib_dev.destroy_qp        = mlx4_ib_destroy_qp;
2694         ibdev->ib_dev.post_send         = mlx4_ib_post_send;
2695         ibdev->ib_dev.post_recv         = mlx4_ib_post_recv;
2696         ibdev->ib_dev.create_cq         = mlx4_ib_create_cq;
2697         ibdev->ib_dev.modify_cq         = mlx4_ib_modify_cq;
2698         ibdev->ib_dev.resize_cq         = mlx4_ib_resize_cq;
2699         ibdev->ib_dev.destroy_cq        = mlx4_ib_destroy_cq;
2700         ibdev->ib_dev.poll_cq           = mlx4_ib_poll_cq;
2701         ibdev->ib_dev.req_notify_cq     = mlx4_ib_arm_cq;
2702         ibdev->ib_dev.get_dma_mr        = mlx4_ib_get_dma_mr;
2703         ibdev->ib_dev.reg_user_mr       = mlx4_ib_reg_user_mr;
2704         ibdev->ib_dev.rereg_user_mr     = mlx4_ib_rereg_user_mr;
2705         ibdev->ib_dev.dereg_mr          = mlx4_ib_dereg_mr;
2706         ibdev->ib_dev.alloc_mr          = mlx4_ib_alloc_mr;
2707         ibdev->ib_dev.map_mr_sg         = mlx4_ib_map_mr_sg;
2708         ibdev->ib_dev.attach_mcast      = mlx4_ib_mcg_attach;
2709         ibdev->ib_dev.detach_mcast      = mlx4_ib_mcg_detach;
2710         ibdev->ib_dev.process_mad       = mlx4_ib_process_mad;
2711         ibdev->ib_dev.get_port_immutable = mlx4_port_immutable;
2712         ibdev->ib_dev.get_dev_fw_str    = get_fw_ver_str;
2713         ibdev->ib_dev.disassociate_ucontext = mlx4_ib_disassociate_ucontext;
2714
2715         if (!mlx4_is_slave(ibdev->dev)) {
2716                 ibdev->ib_dev.alloc_fmr         = mlx4_ib_fmr_alloc;
2717                 ibdev->ib_dev.map_phys_fmr      = mlx4_ib_map_phys_fmr;
2718                 ibdev->ib_dev.unmap_fmr         = mlx4_ib_unmap_fmr;
2719                 ibdev->ib_dev.dealloc_fmr       = mlx4_ib_fmr_dealloc;
2720         }
2721
2722         if (dev->caps.flags & MLX4_DEV_CAP_FLAG_MEM_WINDOW ||
2723             dev->caps.bmme_flags & MLX4_BMME_FLAG_TYPE_2_WIN) {
2724                 ibdev->ib_dev.alloc_mw = mlx4_ib_alloc_mw;
2725                 ibdev->ib_dev.dealloc_mw = mlx4_ib_dealloc_mw;
2726
2727                 ibdev->ib_dev.uverbs_cmd_mask |=
2728                         (1ull << IB_USER_VERBS_CMD_ALLOC_MW) |
2729                         (1ull << IB_USER_VERBS_CMD_DEALLOC_MW);
2730         }
2731
2732         if (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) {
2733                 ibdev->ib_dev.alloc_xrcd = mlx4_ib_alloc_xrcd;
2734                 ibdev->ib_dev.dealloc_xrcd = mlx4_ib_dealloc_xrcd;
2735                 ibdev->ib_dev.uverbs_cmd_mask |=
2736                         (1ull << IB_USER_VERBS_CMD_OPEN_XRCD) |
2737                         (1ull << IB_USER_VERBS_CMD_CLOSE_XRCD);
2738         }
2739
2740         if (check_flow_steering_support(dev)) {
2741                 ibdev->steering_support = MLX4_STEERING_MODE_DEVICE_MANAGED;
2742                 ibdev->ib_dev.create_flow       = mlx4_ib_create_flow;
2743                 ibdev->ib_dev.destroy_flow      = mlx4_ib_destroy_flow;
2744
2745                 ibdev->ib_dev.uverbs_ex_cmd_mask        |=
2746                         (1ull << IB_USER_VERBS_EX_CMD_CREATE_FLOW) |
2747                         (1ull << IB_USER_VERBS_EX_CMD_DESTROY_FLOW);
2748         }
2749
2750         ibdev->ib_dev.uverbs_ex_cmd_mask |=
2751                 (1ull << IB_USER_VERBS_EX_CMD_QUERY_DEVICE) |
2752                 (1ull << IB_USER_VERBS_EX_CMD_CREATE_CQ) |
2753                 (1ull << IB_USER_VERBS_EX_CMD_CREATE_QP);
2754
2755         mlx4_ib_alloc_eqs(dev, ibdev);
2756
2757         spin_lock_init(&iboe->lock);
2758
2759         if (init_node_data(ibdev))
2760                 goto err_map;
2761         mlx4_init_sl2vl_tbl(ibdev);
2762
2763         for (i = 0; i < ibdev->num_ports; ++i) {
2764                 mutex_init(&ibdev->counters_table[i].mutex);
2765                 INIT_LIST_HEAD(&ibdev->counters_table[i].counters_list);
2766         }
2767
2768         num_req_counters = mlx4_is_bonded(dev) ? 1 : ibdev->num_ports;
2769         for (i = 0; i < num_req_counters; ++i) {
2770                 mutex_init(&ibdev->qp1_proxy_lock[i]);
2771                 allocated = 0;
2772                 if (mlx4_ib_port_link_layer(&ibdev->ib_dev, i + 1) ==
2773                                                 IB_LINK_LAYER_ETHERNET) {
2774                         err = mlx4_counter_alloc(ibdev->dev, &counter_index);
2775                         /* if failed to allocate a new counter, use default */
2776                         if (err)
2777                                 counter_index =
2778                                         mlx4_get_default_counter_index(dev,
2779                                                                        i + 1);
2780                         else
2781                                 allocated = 1;
2782                 } else { /* IB_LINK_LAYER_INFINIBAND use the default counter */
2783                         counter_index = mlx4_get_default_counter_index(dev,
2784                                                                        i + 1);
2785                 }
2786                 new_counter_index = kmalloc(sizeof(*new_counter_index),
2787                                             GFP_KERNEL);
2788                 if (!new_counter_index) {
2789                         if (allocated)
2790                                 mlx4_counter_free(ibdev->dev, counter_index);
2791                         goto err_counter;
2792                 }
2793                 new_counter_index->index = counter_index;
2794                 new_counter_index->allocated = allocated;
2795                 list_add_tail(&new_counter_index->list,
2796                               &ibdev->counters_table[i].counters_list);
2797                 ibdev->counters_table[i].default_counter = counter_index;
2798                 pr_info("counter index %d for port %d allocated %d\n",
2799                         counter_index, i + 1, allocated);
2800         }
2801         if (mlx4_is_bonded(dev))
2802                 for (i = 1; i < ibdev->num_ports ; ++i) {
2803                         new_counter_index =
2804                                         kmalloc(sizeof(struct counter_index),
2805                                                 GFP_KERNEL);
2806                         if (!new_counter_index)
2807                                 goto err_counter;
2808                         new_counter_index->index = counter_index;
2809                         new_counter_index->allocated = 0;
2810                         list_add_tail(&new_counter_index->list,
2811                                       &ibdev->counters_table[i].counters_list);
2812                         ibdev->counters_table[i].default_counter =
2813                                                                 counter_index;
2814                 }
2815
2816         mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB)
2817                 ib_num_ports++;
2818
2819         spin_lock_init(&ibdev->sm_lock);
2820         mutex_init(&ibdev->cap_mask_mutex);
2821         INIT_LIST_HEAD(&ibdev->qp_list);
2822         spin_lock_init(&ibdev->reset_flow_resource_lock);
2823
2824         if (ibdev->steering_support == MLX4_STEERING_MODE_DEVICE_MANAGED &&
2825             ib_num_ports) {
2826                 ibdev->steer_qpn_count = MLX4_IB_UC_MAX_NUM_QPS;
2827                 err = mlx4_qp_reserve_range(dev, ibdev->steer_qpn_count,
2828                                             MLX4_IB_UC_STEER_QPN_ALIGN,
2829                                             &ibdev->steer_qpn_base, 0);
2830                 if (err)
2831                         goto err_counter;
2832
2833                 ibdev->ib_uc_qpns_bitmap =
2834                         kmalloc(BITS_TO_LONGS(ibdev->steer_qpn_count) *
2835                                 sizeof(long),
2836                                 GFP_KERNEL);
2837                 if (!ibdev->ib_uc_qpns_bitmap)
2838                         goto err_steer_qp_release;
2839
2840                 if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_DMFS_IPOIB) {
2841                         bitmap_zero(ibdev->ib_uc_qpns_bitmap,
2842                                     ibdev->steer_qpn_count);
2843                         err = mlx4_FLOW_STEERING_IB_UC_QP_RANGE(
2844                                         dev, ibdev->steer_qpn_base,
2845                                         ibdev->steer_qpn_base +
2846                                         ibdev->steer_qpn_count - 1);
2847                         if (err)
2848                                 goto err_steer_free_bitmap;
2849                 } else {
2850                         bitmap_fill(ibdev->ib_uc_qpns_bitmap,
2851                                     ibdev->steer_qpn_count);
2852                 }
2853         }
2854
2855         for (j = 1; j <= ibdev->dev->caps.num_ports; j++)
2856                 atomic64_set(&iboe->mac[j - 1], ibdev->dev->caps.def_mac[j]);
2857
2858         if (mlx4_ib_alloc_diag_counters(ibdev))
2859                 goto err_steer_free_bitmap;
2860
2861         if (ib_register_device(&ibdev->ib_dev, NULL))
2862                 goto err_diag_counters;
2863
2864         if (mlx4_ib_mad_init(ibdev))
2865                 goto err_reg;
2866
2867         if (mlx4_ib_init_sriov(ibdev))
2868                 goto err_mad;
2869
2870         if (dev->caps.flags & MLX4_DEV_CAP_FLAG_IBOE ||
2871             dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ROCE_V1_V2) {
2872                 if (!iboe->nb.notifier_call) {
2873                         iboe->nb.notifier_call = mlx4_ib_netdev_event;
2874                         err = register_netdevice_notifier(&iboe->nb);
2875                         if (err) {
2876                                 iboe->nb.notifier_call = NULL;
2877                                 goto err_notif;
2878                         }
2879                 }
2880                 if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ROCE_V1_V2) {
2881                         err = mlx4_config_roce_v2_port(dev, ROCE_V2_UDP_DPORT);
2882                         if (err) {
2883                                 goto err_notif;
2884                         }
2885                 }
2886         }
2887
2888         for (j = 0; j < ARRAY_SIZE(mlx4_class_attributes); ++j) {
2889                 if (device_create_file(&ibdev->ib_dev.dev,
2890                                        mlx4_class_attributes[j]))
2891                         goto err_notif;
2892         }
2893
2894         ibdev->ib_active = true;
2895         mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB)
2896                 devlink_port_type_ib_set(mlx4_get_devlink_port(dev, i),
2897                                          &ibdev->ib_dev);
2898
2899         if (mlx4_is_mfunc(ibdev->dev))
2900                 init_pkeys(ibdev);
2901
2902         /* create paravirt contexts for any VFs which are active */
2903         if (mlx4_is_master(ibdev->dev)) {
2904                 for (j = 0; j < MLX4_MFUNC_MAX; j++) {
2905                         if (j == mlx4_master_func_num(ibdev->dev))
2906                                 continue;
2907                         if (mlx4_is_slave_active(ibdev->dev, j))
2908                                 do_slave_init(ibdev, j, 1);
2909                 }
2910         }
2911         return ibdev;
2912
2913 err_notif:
2914         if (ibdev->iboe.nb.notifier_call) {
2915                 if (unregister_netdevice_notifier(&ibdev->iboe.nb))
2916                         pr_warn("failure unregistering notifier\n");
2917                 ibdev->iboe.nb.notifier_call = NULL;
2918         }
2919         flush_workqueue(wq);
2920
2921         mlx4_ib_close_sriov(ibdev);
2922
2923 err_mad:
2924         mlx4_ib_mad_cleanup(ibdev);
2925
2926 err_reg:
2927         ib_unregister_device(&ibdev->ib_dev);
2928
2929 err_diag_counters:
2930         mlx4_ib_diag_cleanup(ibdev);
2931
2932 err_steer_free_bitmap:
2933         kfree(ibdev->ib_uc_qpns_bitmap);
2934
2935 err_steer_qp_release:
2936         if (ibdev->steering_support == MLX4_STEERING_MODE_DEVICE_MANAGED)
2937                 mlx4_qp_release_range(dev, ibdev->steer_qpn_base,
2938                                       ibdev->steer_qpn_count);
2939 err_counter:
2940         for (i = 0; i < ibdev->num_ports; ++i)
2941                 mlx4_ib_delete_counters_table(ibdev, &ibdev->counters_table[i]);
2942
2943 err_map:
2944         iounmap(ibdev->uar_map);
2945
2946 err_uar:
2947         mlx4_uar_free(dev, &ibdev->priv_uar);
2948
2949 err_pd:
2950         mlx4_pd_free(dev, ibdev->priv_pdn);
2951
2952 err_dealloc:
2953         ib_dealloc_device(&ibdev->ib_dev);
2954
2955         return NULL;
2956 }
2957
2958 int mlx4_ib_steer_qp_alloc(struct mlx4_ib_dev *dev, int count, int *qpn)
2959 {
2960         int offset;
2961
2962         WARN_ON(!dev->ib_uc_qpns_bitmap);
2963
2964         offset = bitmap_find_free_region(dev->ib_uc_qpns_bitmap,
2965                                          dev->steer_qpn_count,
2966                                          get_count_order(count));
2967         if (offset < 0)
2968                 return offset;
2969
2970         *qpn = dev->steer_qpn_base + offset;
2971         return 0;
2972 }
2973
2974 void mlx4_ib_steer_qp_free(struct mlx4_ib_dev *dev, u32 qpn, int count)
2975 {
2976         if (!qpn ||
2977             dev->steering_support != MLX4_STEERING_MODE_DEVICE_MANAGED)
2978                 return;
2979
2980         BUG_ON(qpn < dev->steer_qpn_base);
2981
2982         bitmap_release_region(dev->ib_uc_qpns_bitmap,
2983                               qpn - dev->steer_qpn_base,
2984                               get_count_order(count));
2985 }
2986
2987 int mlx4_ib_steer_qp_reg(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
2988                          int is_attach)
2989 {
2990         int err;
2991         size_t flow_size;
2992         struct ib_flow_attr *flow = NULL;
2993         struct ib_flow_spec_ib *ib_spec;
2994
2995         if (is_attach) {
2996                 flow_size = sizeof(struct ib_flow_attr) +
2997                             sizeof(struct ib_flow_spec_ib);
2998                 flow = kzalloc(flow_size, GFP_KERNEL);
2999                 if (!flow)
3000                         return -ENOMEM;
3001                 flow->port = mqp->port;
3002                 flow->num_of_specs = 1;
3003                 flow->size = flow_size;
3004                 ib_spec = (struct ib_flow_spec_ib *)(flow + 1);
3005                 ib_spec->type = IB_FLOW_SPEC_IB;
3006                 ib_spec->size = sizeof(struct ib_flow_spec_ib);
3007                 /* Add an empty rule for IB L2 */
3008                 memset(&ib_spec->mask, 0, sizeof(ib_spec->mask));
3009
3010                 err = __mlx4_ib_create_flow(&mqp->ibqp, flow,
3011                                             IB_FLOW_DOMAIN_NIC,
3012                                             MLX4_FS_REGULAR,
3013                                             &mqp->reg_id);
3014         } else {
3015                 err = __mlx4_ib_destroy_flow(mdev->dev, mqp->reg_id);
3016         }
3017         kfree(flow);
3018         return err;
3019 }
3020
3021 static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr)
3022 {
3023         struct mlx4_ib_dev *ibdev = ibdev_ptr;
3024         int p;
3025         int i;
3026
3027         mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB)
3028                 devlink_port_type_clear(mlx4_get_devlink_port(dev, i));
3029         ibdev->ib_active = false;
3030         flush_workqueue(wq);
3031
3032         mlx4_ib_close_sriov(ibdev);
3033         mlx4_ib_mad_cleanup(ibdev);
3034         ib_unregister_device(&ibdev->ib_dev);
3035         mlx4_ib_diag_cleanup(ibdev);
3036         if (ibdev->iboe.nb.notifier_call) {
3037                 if (unregister_netdevice_notifier(&ibdev->iboe.nb))
3038                         pr_warn("failure unregistering notifier\n");
3039                 ibdev->iboe.nb.notifier_call = NULL;
3040         }
3041
3042         if (ibdev->steering_support == MLX4_STEERING_MODE_DEVICE_MANAGED) {
3043                 mlx4_qp_release_range(dev, ibdev->steer_qpn_base,
3044                                       ibdev->steer_qpn_count);
3045                 kfree(ibdev->ib_uc_qpns_bitmap);
3046         }
3047
3048         iounmap(ibdev->uar_map);
3049         for (p = 0; p < ibdev->num_ports; ++p)
3050                 mlx4_ib_delete_counters_table(ibdev, &ibdev->counters_table[p]);
3051
3052         mlx4_foreach_port(p, dev, MLX4_PORT_TYPE_IB)
3053                 mlx4_CLOSE_PORT(dev, p);
3054
3055         mlx4_ib_free_eqs(dev, ibdev);
3056
3057         mlx4_uar_free(dev, &ibdev->priv_uar);
3058         mlx4_pd_free(dev, ibdev->priv_pdn);
3059         ib_dealloc_device(&ibdev->ib_dev);
3060 }
3061
3062 static void do_slave_init(struct mlx4_ib_dev *ibdev, int slave, int do_init)
3063 {
3064         struct mlx4_ib_demux_work **dm = NULL;
3065         struct mlx4_dev *dev = ibdev->dev;
3066         int i;
3067         unsigned long flags;
3068         struct mlx4_active_ports actv_ports;
3069         unsigned int ports;
3070         unsigned int first_port;
3071
3072         if (!mlx4_is_master(dev))
3073                 return;
3074
3075         actv_ports = mlx4_get_active_ports(dev, slave);
3076         ports = bitmap_weight(actv_ports.ports, dev->caps.num_ports);
3077         first_port = find_first_bit(actv_ports.ports, dev->caps.num_ports);
3078
3079         dm = kcalloc(ports, sizeof(*dm), GFP_ATOMIC);
3080         if (!dm)
3081                 return;
3082
3083         for (i = 0; i < ports; i++) {
3084                 dm[i] = kmalloc(sizeof (struct mlx4_ib_demux_work), GFP_ATOMIC);
3085                 if (!dm[i]) {
3086                         while (--i >= 0)
3087                                 kfree(dm[i]);
3088                         goto out;
3089                 }
3090                 INIT_WORK(&dm[i]->work, mlx4_ib_tunnels_update_work);
3091                 dm[i]->port = first_port + i + 1;
3092                 dm[i]->slave = slave;
3093                 dm[i]->do_init = do_init;
3094                 dm[i]->dev = ibdev;
3095         }
3096         /* initialize or tear down tunnel QPs for the slave */
3097         spin_lock_irqsave(&ibdev->sriov.going_down_lock, flags);
3098         if (!ibdev->sriov.is_going_down) {
3099                 for (i = 0; i < ports; i++)
3100                         queue_work(ibdev->sriov.demux[i].ud_wq, &dm[i]->work);
3101                 spin_unlock_irqrestore(&ibdev->sriov.going_down_lock, flags);
3102         } else {
3103                 spin_unlock_irqrestore(&ibdev->sriov.going_down_lock, flags);
3104                 for (i = 0; i < ports; i++)
3105                         kfree(dm[i]);
3106         }
3107 out:
3108         kfree(dm);
3109         return;
3110 }
3111
3112 static void mlx4_ib_handle_catas_error(struct mlx4_ib_dev *ibdev)
3113 {
3114         struct mlx4_ib_qp *mqp;
3115         unsigned long flags_qp;
3116         unsigned long flags_cq;
3117         struct mlx4_ib_cq *send_mcq, *recv_mcq;
3118         struct list_head    cq_notify_list;
3119         struct mlx4_cq *mcq;
3120         unsigned long flags;
3121
3122         pr_warn("mlx4_ib_handle_catas_error was started\n");
3123         INIT_LIST_HEAD(&cq_notify_list);
3124
3125         /* Go over qp list reside on that ibdev, sync with create/destroy qp.*/
3126         spin_lock_irqsave(&ibdev->reset_flow_resource_lock, flags);
3127
3128         list_for_each_entry(mqp, &ibdev->qp_list, qps_list) {
3129                 spin_lock_irqsave(&mqp->sq.lock, flags_qp);
3130                 if (mqp->sq.tail != mqp->sq.head) {
3131                         send_mcq = to_mcq(mqp->ibqp.send_cq);
3132                         spin_lock_irqsave(&send_mcq->lock, flags_cq);
3133                         if (send_mcq->mcq.comp &&
3134                             mqp->ibqp.send_cq->comp_handler) {
3135                                 if (!send_mcq->mcq.reset_notify_added) {
3136                                         send_mcq->mcq.reset_notify_added = 1;
3137                                         list_add_tail(&send_mcq->mcq.reset_notify,
3138                                                       &cq_notify_list);
3139                                 }
3140                         }
3141                         spin_unlock_irqrestore(&send_mcq->lock, flags_cq);
3142                 }
3143                 spin_unlock_irqrestore(&mqp->sq.lock, flags_qp);
3144                 /* Now, handle the QP's receive queue */
3145                 spin_lock_irqsave(&mqp->rq.lock, flags_qp);
3146                 /* no handling is needed for SRQ */
3147                 if (!mqp->ibqp.srq) {
3148                         if (mqp->rq.tail != mqp->rq.head) {
3149                                 recv_mcq = to_mcq(mqp->ibqp.recv_cq);
3150                                 spin_lock_irqsave(&recv_mcq->lock, flags_cq);
3151                                 if (recv_mcq->mcq.comp &&
3152                                     mqp->ibqp.recv_cq->comp_handler) {
3153                                         if (!recv_mcq->mcq.reset_notify_added) {
3154                                                 recv_mcq->mcq.reset_notify_added = 1;
3155                                                 list_add_tail(&recv_mcq->mcq.reset_notify,
3156                                                               &cq_notify_list);
3157                                         }
3158                                 }
3159                                 spin_unlock_irqrestore(&recv_mcq->lock,
3160                                                        flags_cq);
3161                         }
3162                 }
3163                 spin_unlock_irqrestore(&mqp->rq.lock, flags_qp);
3164         }
3165
3166         list_for_each_entry(mcq, &cq_notify_list, reset_notify) {
3167                 mcq->comp(mcq);
3168         }
3169         spin_unlock_irqrestore(&ibdev->reset_flow_resource_lock, flags);
3170         pr_warn("mlx4_ib_handle_catas_error ended\n");
3171 }
3172
3173 static void handle_bonded_port_state_event(struct work_struct *work)
3174 {
3175         struct ib_event_work *ew =
3176                 container_of(work, struct ib_event_work, work);
3177         struct mlx4_ib_dev *ibdev = ew->ib_dev;
3178         enum ib_port_state bonded_port_state = IB_PORT_NOP;
3179         int i;
3180         struct ib_event ibev;
3181
3182         kfree(ew);
3183         spin_lock_bh(&ibdev->iboe.lock);
3184         for (i = 0; i < MLX4_MAX_PORTS; ++i) {
3185                 struct net_device *curr_netdev = ibdev->iboe.netdevs[i];
3186                 enum ib_port_state curr_port_state;
3187
3188                 if (!curr_netdev)
3189                         continue;
3190
3191                 curr_port_state =
3192                         (netif_running(curr_netdev) &&
3193                          netif_carrier_ok(curr_netdev)) ?
3194                         IB_PORT_ACTIVE : IB_PORT_DOWN;
3195
3196                 bonded_port_state = (bonded_port_state != IB_PORT_ACTIVE) ?
3197                         curr_port_state : IB_PORT_ACTIVE;
3198         }
3199         spin_unlock_bh(&ibdev->iboe.lock);
3200
3201         ibev.device = &ibdev->ib_dev;
3202         ibev.element.port_num = 1;
3203         ibev.event = (bonded_port_state == IB_PORT_ACTIVE) ?
3204                 IB_EVENT_PORT_ACTIVE : IB_EVENT_PORT_ERR;
3205
3206         ib_dispatch_event(&ibev);
3207 }
3208
3209 void mlx4_ib_sl2vl_update(struct mlx4_ib_dev *mdev, int port)
3210 {
3211         u64 sl2vl;
3212         int err;
3213
3214         err = mlx4_ib_query_sl2vl(&mdev->ib_dev, port, &sl2vl);
3215         if (err) {
3216                 pr_err("Unable to get current sl to vl mapping for port %d.  Using all zeroes (%d)\n",
3217                        port, err);
3218                 sl2vl = 0;
3219         }
3220         atomic64_set(&mdev->sl2vl[port - 1], sl2vl);
3221 }
3222
3223 static void ib_sl2vl_update_work(struct work_struct *work)
3224 {
3225         struct ib_event_work *ew = container_of(work, struct ib_event_work, work);
3226         struct mlx4_ib_dev *mdev = ew->ib_dev;
3227         int port = ew->port;
3228
3229         mlx4_ib_sl2vl_update(mdev, port);
3230
3231         kfree(ew);
3232 }
3233
3234 void mlx4_sched_ib_sl2vl_update_work(struct mlx4_ib_dev *ibdev,
3235                                      int port)
3236 {
3237         struct ib_event_work *ew;
3238
3239         ew = kmalloc(sizeof(*ew), GFP_ATOMIC);
3240         if (ew) {
3241                 INIT_WORK(&ew->work, ib_sl2vl_update_work);
3242                 ew->port = port;
3243                 ew->ib_dev = ibdev;
3244                 queue_work(wq, &ew->work);
3245         }
3246 }
3247
3248 static void mlx4_ib_event(struct mlx4_dev *dev, void *ibdev_ptr,
3249                           enum mlx4_dev_event event, unsigned long param)
3250 {
3251         struct ib_event ibev;
3252         struct mlx4_ib_dev *ibdev = to_mdev((struct ib_device *) ibdev_ptr);
3253         struct mlx4_eqe *eqe = NULL;
3254         struct ib_event_work *ew;
3255         int p = 0;
3256
3257         if (mlx4_is_bonded(dev) &&
3258             ((event == MLX4_DEV_EVENT_PORT_UP) ||
3259             (event == MLX4_DEV_EVENT_PORT_DOWN))) {
3260                 ew = kmalloc(sizeof(*ew), GFP_ATOMIC);
3261                 if (!ew)
3262                         return;
3263                 INIT_WORK(&ew->work, handle_bonded_port_state_event);
3264                 ew->ib_dev = ibdev;
3265                 queue_work(wq, &ew->work);
3266                 return;
3267         }
3268
3269         if (event == MLX4_DEV_EVENT_PORT_MGMT_CHANGE)
3270                 eqe = (struct mlx4_eqe *)param;
3271         else
3272                 p = (int) param;
3273
3274         switch (event) {
3275         case MLX4_DEV_EVENT_PORT_UP:
3276                 if (p > ibdev->num_ports)
3277                         return;
3278                 if (!mlx4_is_slave(dev) &&
3279                     rdma_port_get_link_layer(&ibdev->ib_dev, p) ==
3280                         IB_LINK_LAYER_INFINIBAND) {
3281                         if (mlx4_is_master(dev))
3282                                 mlx4_ib_invalidate_all_guid_record(ibdev, p);
3283                         if (ibdev->dev->flags & MLX4_FLAG_SECURE_HOST &&
3284                             !(ibdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SL_TO_VL_CHANGE_EVENT))
3285                                 mlx4_sched_ib_sl2vl_update_work(ibdev, p);
3286                 }
3287                 ibev.event = IB_EVENT_PORT_ACTIVE;
3288                 break;
3289
3290         case MLX4_DEV_EVENT_PORT_DOWN:
3291                 if (p > ibdev->num_ports)
3292                         return;
3293                 ibev.event = IB_EVENT_PORT_ERR;
3294                 break;
3295
3296         case MLX4_DEV_EVENT_CATASTROPHIC_ERROR:
3297                 ibdev->ib_active = false;
3298                 ibev.event = IB_EVENT_DEVICE_FATAL;
3299                 mlx4_ib_handle_catas_error(ibdev);
3300                 break;
3301
3302         case MLX4_DEV_EVENT_PORT_MGMT_CHANGE:
3303                 ew = kmalloc(sizeof *ew, GFP_ATOMIC);
3304                 if (!ew)
3305                         break;
3306
3307                 INIT_WORK(&ew->work, handle_port_mgmt_change_event);
3308                 memcpy(&ew->ib_eqe, eqe, sizeof *eqe);
3309                 ew->ib_dev = ibdev;
3310                 /* need to queue only for port owner, which uses GEN_EQE */
3311                 if (mlx4_is_master(dev))
3312                         queue_work(wq, &ew->work);
3313                 else
3314                         handle_port_mgmt_change_event(&ew->work);
3315                 return;
3316
3317         case MLX4_DEV_EVENT_SLAVE_INIT:
3318                 /* here, p is the slave id */
3319                 do_slave_init(ibdev, p, 1);
3320                 if (mlx4_is_master(dev)) {
3321                         int i;
3322
3323                         for (i = 1; i <= ibdev->num_ports; i++) {
3324                                 if (rdma_port_get_link_layer(&ibdev->ib_dev, i)
3325                                         == IB_LINK_LAYER_INFINIBAND)
3326                                         mlx4_ib_slave_alias_guid_event(ibdev,
3327                                                                        p, i,
3328                                                                        1);
3329                         }
3330                 }
3331                 return;
3332
3333         case MLX4_DEV_EVENT_SLAVE_SHUTDOWN:
3334                 if (mlx4_is_master(dev)) {
3335                         int i;
3336
3337                         for (i = 1; i <= ibdev->num_ports; i++) {
3338                                 if (rdma_port_get_link_layer(&ibdev->ib_dev, i)
3339                                         == IB_LINK_LAYER_INFINIBAND)
3340                                         mlx4_ib_slave_alias_guid_event(ibdev,
3341                                                                        p, i,
3342                                                                        0);
3343                         }
3344                 }
3345                 /* here, p is the slave id */
3346                 do_slave_init(ibdev, p, 0);
3347                 return;
3348
3349         default:
3350                 return;
3351         }
3352
3353         ibev.device           = ibdev_ptr;
3354         ibev.element.port_num = mlx4_is_bonded(ibdev->dev) ? 1 : (u8)p;
3355
3356         ib_dispatch_event(&ibev);
3357 }
3358
3359 static struct mlx4_interface mlx4_ib_interface = {
3360         .add            = mlx4_ib_add,
3361         .remove         = mlx4_ib_remove,
3362         .event          = mlx4_ib_event,
3363         .protocol       = MLX4_PROT_IB_IPV6,
3364         .flags          = MLX4_INTFF_BONDING
3365 };
3366
3367 static int __init mlx4_ib_init(void)
3368 {
3369         int err;
3370
3371         wq = alloc_ordered_workqueue("mlx4_ib", WQ_MEM_RECLAIM);
3372         if (!wq)
3373                 return -ENOMEM;
3374
3375         err = mlx4_ib_mcg_init();
3376         if (err)
3377                 goto clean_wq;
3378
3379         err = mlx4_register_interface(&mlx4_ib_interface);
3380         if (err)
3381                 goto clean_mcg;
3382
3383         return 0;
3384
3385 clean_mcg:
3386         mlx4_ib_mcg_destroy();
3387
3388 clean_wq:
3389         destroy_workqueue(wq);
3390         return err;
3391 }
3392
3393 static void __exit mlx4_ib_cleanup(void)
3394 {
3395         mlx4_unregister_interface(&mlx4_ib_interface);
3396         mlx4_ib_mcg_destroy();
3397         destroy_workqueue(wq);
3398 }
3399
3400 module_init(mlx4_ib_init);
3401 module_exit(mlx4_ib_cleanup);