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     "4.0-0"
  65
  66 #define MLX4_IB_FLOW_MAX_PRIO 0xFFF
  67 #define MLX4_IB_FLOW_QPN_MASK 0xFFFFFF
  68 #define MLX4_IB_CARD_REV_A0   0xA0
  69
  70 MODULE_AUTHOR("Roland Dreier");
  71 MODULE_DESCRIPTION("Mellanox ConnectX HCA InfiniBand driver");
  72 MODULE_LICENSE("Dual BSD/GPL");
  73
  74 int mlx4_ib_sm_guid_assign = 0;
  75 module_param_named(sm_guid_assign, mlx4_ib_sm_guid_assign, int, 0444);
  76 MODULE_PARM_DESC(sm_guid_assign, "Enable SM alias_GUID assignment if sm_guid_assign > 0 (Default: 0)");
  77
  78 static const char mlx4_ib_version[] =
  79         DRV_NAME ": Mellanox ConnectX InfiniBand driver v"
  80         DRV_VERSION "\n";
  81
  82 static void do_slave_init(struct mlx4_ib_dev *ibdev, int slave, int do_init);
  83 static enum rdma_link_layer mlx4_ib_port_link_layer(struct ib_device *device,
  84                                                     u32 port_num);
  85 static int mlx4_ib_event(struct notifier_block *this, unsigned long event,
  86                          void *param);
  87
  88 static struct workqueue_struct *wq;
  89
  90 static int check_flow_steering_support(struct mlx4_dev *dev)
  91 {
  92         int eth_num_ports = 0;
  93         int ib_num_ports = 0;
  94
  95         int dmfs = dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED;
  96
  97         if (dmfs) {
  98                 int i;
  99                 mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH)
 100                         eth_num_ports++;
 101                 mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB)
 102                         ib_num_ports++;
 103                 dmfs &= (!ib_num_ports ||
 104                          (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_DMFS_IPOIB)) &&
 105                         (!eth_num_ports ||
 106                          (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FS_EN));
 107                 if (ib_num_ports && mlx4_is_mfunc(dev)) {
 108                         pr_warn("Device managed flow steering is unavailable for IB port in multifunction env.\n");
 109                         dmfs = 0;
 110                 }
 111         }
 112         return dmfs;
 113 }
 114
 115 static int num_ib_ports(struct mlx4_dev *dev)
 116 {
 117         int ib_ports = 0;
 118         int i;
 119
 120         mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB)
 121                 ib_ports++;
 122
 123         return ib_ports;
 124 }
 125
 126 static struct net_device *mlx4_ib_get_netdev(struct ib_device *device,
 127                                              u32 port_num)
 128 {
 129         struct mlx4_ib_dev *ibdev = to_mdev(device);
 130         struct net_device *dev, *ret = NULL;
 131
 132         rcu_read_lock();
 133         for_each_netdev_rcu(&init_net, dev) {
 134                 if (dev->dev.parent != ibdev->ib_dev.dev.parent ||
 135                     dev->dev_port + 1 != port_num)
 136                         continue;
 137
 138                 if (mlx4_is_bonded(ibdev->dev)) {
 139                         struct net_device *upper;
 140
 141                         upper = netdev_master_upper_dev_get_rcu(dev);
 142                         if (upper) {
 143                                 struct net_device *active;
 144
 145                                 active = bond_option_active_slave_get_rcu(netdev_priv(upper));
 146                                 if (active)
 147                                         dev = active;
 148                         }
 149                 }
 150
 151                 dev_hold(dev);
 152                 ret = dev;
 153                 break;
 154         }
 155
 156         rcu_read_unlock();
 157         return ret;
 158 }
 159
 160 static int mlx4_ib_update_gids_v1(struct gid_entry *gids,
 161                                   struct mlx4_ib_dev *ibdev,
 162                                   u32 port_num)
 163 {
 164         struct mlx4_cmd_mailbox *mailbox;
 165         int err;
 166         struct mlx4_dev *dev = ibdev->dev;
 167         int i;
 168         union ib_gid *gid_tbl;
 169
 170         mailbox = mlx4_alloc_cmd_mailbox(dev);
 171         if (IS_ERR(mailbox))
 172                 return -ENOMEM;
 173
 174         gid_tbl = mailbox->buf;
 175
 176         for (i = 0; i < MLX4_MAX_PORT_GIDS; ++i)
 177                 memcpy(&gid_tbl[i], &gids[i].gid, sizeof(union ib_gid));
 178
 179         err = mlx4_cmd(dev, mailbox->dma,
 180                        MLX4_SET_PORT_GID_TABLE << 8 | port_num,
 181                        1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B,
 182                        MLX4_CMD_WRAPPED);
 183         if (mlx4_is_bonded(dev))
 184                 err += mlx4_cmd(dev, mailbox->dma,
 185                                 MLX4_SET_PORT_GID_TABLE << 8 | 2,
 186                                 1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B,
 187                                 MLX4_CMD_WRAPPED);
 188
 189         mlx4_free_cmd_mailbox(dev, mailbox);
 190         return err;
 191 }
 192
 193 static int mlx4_ib_update_gids_v1_v2(struct gid_entry *gids,
 194                                      struct mlx4_ib_dev *ibdev,
 195                                      u32 port_num)
 196 {
 197         struct mlx4_cmd_mailbox *mailbox;
 198         int err;
 199         struct mlx4_dev *dev = ibdev->dev;
 200         int i;
 201         struct {
 202                 union ib_gid    gid;
 203                 __be32          rsrvd1[2];
 204                 __be16          rsrvd2;
 205                 u8              type;
 206                 u8              version;
 207                 __be32          rsrvd3;
 208         } *gid_tbl;
 209
 210         mailbox = mlx4_alloc_cmd_mailbox(dev);
 211         if (IS_ERR(mailbox))
 212                 return -ENOMEM;
 213
 214         gid_tbl = mailbox->buf;
 215         for (i = 0; i < MLX4_MAX_PORT_GIDS; ++i) {
 216                 memcpy(&gid_tbl[i].gid, &gids[i].gid, sizeof(union ib_gid));
 217                 if (gids[i].gid_type == IB_GID_TYPE_ROCE_UDP_ENCAP) {
 218                         gid_tbl[i].version = 2;
 219                         if (!ipv6_addr_v4mapped((struct in6_addr *)&gids[i].gid))
 220                                 gid_tbl[i].type = 1;
 221                 }
 222         }
 223
 224         err = mlx4_cmd(dev, mailbox->dma,
 225                        MLX4_SET_PORT_ROCE_ADDR << 8 | port_num,
 226                        1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B,
 227                        MLX4_CMD_WRAPPED);
 228         if (mlx4_is_bonded(dev))
 229                 err += mlx4_cmd(dev, mailbox->dma,
 230                                 MLX4_SET_PORT_ROCE_ADDR << 8 | 2,
 231                                 1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B,
 232                                 MLX4_CMD_WRAPPED);
 233
 234         mlx4_free_cmd_mailbox(dev, mailbox);
 235         return err;
 236 }
 237
 238 static int mlx4_ib_update_gids(struct gid_entry *gids,
 239                                struct mlx4_ib_dev *ibdev,
 240                                u32 port_num)
 241 {
 242         if (ibdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ROCE_V1_V2)
 243                 return mlx4_ib_update_gids_v1_v2(gids, ibdev, port_num);
 244
 245         return mlx4_ib_update_gids_v1(gids, ibdev, port_num);
 246 }
 247
 248 static void free_gid_entry(struct gid_entry *entry)
 249 {
 250         memset(&entry->gid, 0, sizeof(entry->gid));
 251         kfree(entry->ctx);
 252         entry->ctx = NULL;
 253 }
 254
 255 static int mlx4_ib_add_gid(const struct ib_gid_attr *attr, void **context)
 256 {
 257         struct mlx4_ib_dev *ibdev = to_mdev(attr->device);
 258         struct mlx4_ib_iboe *iboe = &ibdev->iboe;
 259         struct mlx4_port_gid_table   *port_gid_table;
 260         int free = -1, found = -1;
 261         int ret = 0;
 262         int hw_update = 0;
 263         int i;
 264         struct gid_entry *gids;
 265         u16 vlan_id = 0xffff;
 266         u8 mac[ETH_ALEN];
 267
 268         if (!rdma_cap_roce_gid_table(attr->device, attr->port_num))
 269                 return -EINVAL;
 270
 271         if (attr->port_num > MLX4_MAX_PORTS)
 272                 return -EINVAL;
 273
 274         if (!context)
 275                 return -EINVAL;
 276
 277         ret = rdma_read_gid_l2_fields(attr, &vlan_id, &mac[0]);
 278         if (ret)
 279                 return ret;
 280         port_gid_table = &iboe->gids[attr->port_num - 1];
 281         spin_lock_bh(&iboe->lock);
 282         for (i = 0; i < MLX4_MAX_PORT_GIDS; ++i) {
 283                 if (!memcmp(&port_gid_table->gids[i].gid,
 284                             &attr->gid, sizeof(attr->gid)) &&
 285                     port_gid_table->gids[i].gid_type == attr->gid_type &&
 286                     port_gid_table->gids[i].vlan_id == vlan_id)  {
 287                         found = i;
 288                         break;
 289                 }
 290                 if (free < 0 && rdma_is_zero_gid(&port_gid_table->gids[i].gid))
 291                         free = i; /* HW has space */
 292         }
 293
 294         if (found < 0) {
 295                 if (free < 0) {
 296                         ret = -ENOSPC;
 297                 } else {
 298                         port_gid_table->gids[free].ctx = kmalloc(sizeof(*port_gid_table->gids[free].ctx), GFP_ATOMIC);
 299                         if (!port_gid_table->gids[free].ctx) {
 300                                 ret = -ENOMEM;
 301                         } else {
 302                                 *context = port_gid_table->gids[free].ctx;
 303                                 port_gid_table->gids[free].gid = attr->gid;
 304                                 port_gid_table->gids[free].gid_type = attr->gid_type;
 305                                 port_gid_table->gids[free].vlan_id = vlan_id;
 306                                 port_gid_table->gids[free].ctx->real_index = free;
 307                                 port_gid_table->gids[free].ctx->refcount = 1;
 308                                 hw_update = 1;
 309                         }
 310                 }
 311         } else {
 312                 struct gid_cache_context *ctx = port_gid_table->gids[found].ctx;
 313                 *context = ctx;
 314                 ctx->refcount++;
 315         }
 316         if (!ret && hw_update) {
 317                 gids = kmalloc_array(MLX4_MAX_PORT_GIDS, sizeof(*gids),
 318                                      GFP_ATOMIC);
 319                 if (!gids) {
 320                         ret = -ENOMEM;
 321                         *context = NULL;
 322                         free_gid_entry(&port_gid_table->gids[free]);
 323                 } else {
 324                         for (i = 0; i < MLX4_MAX_PORT_GIDS; i++) {
 325                                 memcpy(&gids[i].gid, &port_gid_table->gids[i].gid, sizeof(union ib_gid));
 326                                 gids[i].gid_type = port_gid_table->gids[i].gid_type;
 327                         }
 328                 }
 329         }
 330         spin_unlock_bh(&iboe->lock);
 331
 332         if (!ret && hw_update) {
 333                 ret = mlx4_ib_update_gids(gids, ibdev, attr->port_num);
 334                 if (ret) {
 335                         spin_lock_bh(&iboe->lock);
 336                         *context = NULL;
 337                         free_gid_entry(&port_gid_table->gids[free]);
 338                         spin_unlock_bh(&iboe->lock);
 339                 }
 340                 kfree(gids);
 341         }
 342
 343         return ret;
 344 }
 345
 346 static int mlx4_ib_del_gid(const struct ib_gid_attr *attr, void **context)
 347 {
 348         struct gid_cache_context *ctx = *context;
 349         struct mlx4_ib_dev *ibdev = to_mdev(attr->device);
 350         struct mlx4_ib_iboe *iboe = &ibdev->iboe;
 351         struct mlx4_port_gid_table   *port_gid_table;
 352         int ret = 0;
 353         int hw_update = 0;
 354         struct gid_entry *gids;
 355
 356         if (!rdma_cap_roce_gid_table(attr->device, attr->port_num))
 357                 return -EINVAL;
 358
 359         if (attr->port_num > MLX4_MAX_PORTS)
 360                 return -EINVAL;
 361
 362         port_gid_table = &iboe->gids[attr->port_num - 1];
 363         spin_lock_bh(&iboe->lock);
 364         if (ctx) {
 365                 ctx->refcount--;
 366                 if (!ctx->refcount) {
 367                         unsigned int real_index = ctx->real_index;
 368
 369                         free_gid_entry(&port_gid_table->gids[real_index]);
 370                         hw_update = 1;
 371                 }
 372         }
 373         if (!ret && hw_update) {
 374                 int i;
 375
 376                 gids = kmalloc_array(MLX4_MAX_PORT_GIDS, sizeof(*gids),
 377                                      GFP_ATOMIC);
 378                 if (!gids) {
 379                         ret = -ENOMEM;
 380                 } else {
 381                         for (i = 0; i < MLX4_MAX_PORT_GIDS; i++) {
 382                                 memcpy(&gids[i].gid,
 383                                        &port_gid_table->gids[i].gid,
 384                                        sizeof(union ib_gid));
 385                                 gids[i].gid_type =
 386                                     port_gid_table->gids[i].gid_type;
 387                         }
 388                 }
 389         }
 390         spin_unlock_bh(&iboe->lock);
 391
 392         if (!ret && hw_update) {
 393                 ret = mlx4_ib_update_gids(gids, ibdev, attr->port_num);
 394                 kfree(gids);
 395         }
 396         return ret;
 397 }
 398
 399 int mlx4_ib_gid_index_to_real_index(struct mlx4_ib_dev *ibdev,
 400                                     const struct ib_gid_attr *attr)
 401 {
 402         struct mlx4_ib_iboe *iboe = &ibdev->iboe;
 403         struct gid_cache_context *ctx = NULL;
 404         struct mlx4_port_gid_table   *port_gid_table;
 405         int real_index = -EINVAL;
 406         int i;
 407         unsigned long flags;
 408         u32 port_num = attr->port_num;
 409
 410         if (port_num > MLX4_MAX_PORTS)
 411                 return -EINVAL;
 412
 413         if (mlx4_is_bonded(ibdev->dev))
 414                 port_num = 1;
 415
 416         if (!rdma_cap_roce_gid_table(&ibdev->ib_dev, port_num))
 417                 return attr->index;
 418
 419         spin_lock_irqsave(&iboe->lock, flags);
 420         port_gid_table = &iboe->gids[port_num - 1];
 421
 422         for (i = 0; i < MLX4_MAX_PORT_GIDS; ++i)
 423                 if (!memcmp(&port_gid_table->gids[i].gid,
 424                             &attr->gid, sizeof(attr->gid)) &&
 425                     attr->gid_type == port_gid_table->gids[i].gid_type) {
 426                         ctx = port_gid_table->gids[i].ctx;
 427                         break;
 428                 }
 429         if (ctx)
 430                 real_index = ctx->real_index;
 431         spin_unlock_irqrestore(&iboe->lock, flags);
 432         return real_index;
 433 }
 434
 435 static int mlx4_ib_query_device(struct ib_device *ibdev,
 436                                 struct ib_device_attr *props,
 437                                 struct ib_udata *uhw)
 438 {
 439         struct mlx4_ib_dev *dev = to_mdev(ibdev);
 440         struct ib_smp *in_mad;
 441         struct ib_smp *out_mad;
 442         int err;
 443         int have_ib_ports;
 444         struct mlx4_uverbs_ex_query_device cmd;
 445         struct mlx4_uverbs_ex_query_device_resp resp = {};
 446         struct mlx4_clock_params clock_params;
 447
 448         if (uhw->inlen) {
 449                 if (uhw->inlen < sizeof(cmd))
 450                         return -EINVAL;
 451
 452                 err = ib_copy_from_udata(&cmd, uhw, sizeof(cmd));
 453                 if (err)
 454                         return err;
 455
 456                 if (cmd.comp_mask)
 457                         return -EINVAL;
 458
 459                 if (cmd.reserved)
 460                         return -EINVAL;
 461         }
 462
 463         resp.response_length = offsetof(typeof(resp), response_length) +
 464                 sizeof(resp.response_length);
 465         in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
 466         out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
 467         err = -ENOMEM;
 468         if (!in_mad || !out_mad)
 469                 goto out;
 470
 471         ib_init_query_mad(in_mad);
 472         in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
 473
 474         err = mlx4_MAD_IFC(to_mdev(ibdev), MLX4_MAD_IFC_IGNORE_KEYS,
 475                            1, NULL, NULL, in_mad, out_mad);
 476         if (err)
 477                 goto out;
 478
 479         memset(props, 0, sizeof *props);
 480
 481         have_ib_ports = num_ib_ports(dev->dev);
 482
 483         props->fw_ver = dev->dev->caps.fw_ver;
 484         props->device_cap_flags    = IB_DEVICE_CHANGE_PHY_PORT |
 485                 IB_DEVICE_PORT_ACTIVE_EVENT             |
 486                 IB_DEVICE_SYS_IMAGE_GUID                |
 487                 IB_DEVICE_RC_RNR_NAK_GEN;
 488         props->kernel_cap_flags = IBK_BLOCK_MULTICAST_LOOPBACK;
 489         if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR)
 490                 props->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR;
 491         if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR)
 492                 props->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR;
 493         if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_APM && have_ib_ports)
 494                 props->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG;
 495         if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UD_AV_PORT)
 496                 props->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE;
 497         if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_IPOIB_CSUM)
 498                 props->device_cap_flags |= IB_DEVICE_UD_IP_CSUM;
 499         if (dev->dev->caps.max_gso_sz &&
 500             (dev->dev->rev_id != MLX4_IB_CARD_REV_A0) &&
 501             (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BLH))
 502                 props->kernel_cap_flags |= IBK_UD_TSO;
 503         if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_RESERVED_LKEY)
 504                 props->kernel_cap_flags |= IBK_LOCAL_DMA_LKEY;
 505         if ((dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_LOCAL_INV) &&
 506             (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_REMOTE_INV) &&
 507             (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_FAST_REG_WR))
 508                 props->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS;
 509         if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC)
 510                 props->device_cap_flags |= IB_DEVICE_XRC;
 511         if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_MEM_WINDOW)
 512                 props->device_cap_flags |= IB_DEVICE_MEM_WINDOW;
 513         if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_TYPE_2_WIN) {
 514                 if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_WIN_TYPE_2B)
 515                         props->device_cap_flags |= IB_DEVICE_MEM_WINDOW_TYPE_2B;
 516                 else
 517                         props->device_cap_flags |= IB_DEVICE_MEM_WINDOW_TYPE_2A;
 518         }
 519         if (dev->steering_support == MLX4_STEERING_MODE_DEVICE_MANAGED)
 520                 props->device_cap_flags |= IB_DEVICE_MANAGED_FLOW_STEERING;
 521
 522         props->device_cap_flags |= IB_DEVICE_RAW_IP_CSUM;
 523
 524         props->vendor_id           = be32_to_cpup((__be32 *) (out_mad->data + 36)) &
 525                 0xffffff;
 526         props->vendor_part_id      = dev->dev->persist->pdev->device;
 527         props->hw_ver              = be32_to_cpup((__be32 *) (out_mad->data + 32));
 528         memcpy(&props->sys_image_guid, out_mad->data +  4, 8);
 529
 530         props->max_mr_size         = ~0ull;
 531         props->page_size_cap       = dev->dev->caps.page_size_cap;
 532         props->max_qp              = dev->dev->quotas.qp;
 533         props->max_qp_wr           = dev->dev->caps.max_wqes - MLX4_IB_SQ_MAX_SPARE;
 534         props->max_send_sge =
 535                 min(dev->dev->caps.max_sq_sg, dev->dev->caps.max_rq_sg);
 536         props->max_recv_sge =
 537                 min(dev->dev->caps.max_sq_sg, dev->dev->caps.max_rq_sg);
 538         props->max_sge_rd = MLX4_MAX_SGE_RD;
 539         props->max_cq              = dev->dev->quotas.cq;
 540         props->max_cqe             = dev->dev->caps.max_cqes;
 541         props->max_mr              = dev->dev->quotas.mpt;
 542         props->max_pd              = dev->dev->caps.num_pds - dev->dev->caps.reserved_pds;
 543         props->max_qp_rd_atom      = dev->dev->caps.max_qp_dest_rdma;
 544         props->max_qp_init_rd_atom = dev->dev->caps.max_qp_init_rdma;
 545         props->max_res_rd_atom     = props->max_qp_rd_atom * props->max_qp;
 546         props->max_srq             = dev->dev->quotas.srq;
 547         props->max_srq_wr          = dev->dev->caps.max_srq_wqes - 1;
 548         props->max_srq_sge         = dev->dev->caps.max_srq_sge;
 549         props->max_fast_reg_page_list_len = MLX4_MAX_FAST_REG_PAGES;
 550         props->local_ca_ack_delay  = dev->dev->caps.local_ca_ack_delay;
 551         props->atomic_cap          = dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_ATOMIC ?
 552                 IB_ATOMIC_HCA : IB_ATOMIC_NONE;
 553         props->masked_atomic_cap   = props->atomic_cap;
 554         props->max_pkeys           = dev->dev->caps.pkey_table_len[1];
 555         props->max_mcast_grp       = dev->dev->caps.num_mgms + dev->dev->caps.num_amgms;
 556         props->max_mcast_qp_attach = dev->dev->caps.num_qp_per_mgm;
 557         props->max_total_mcast_qp_attach = props->max_mcast_qp_attach *
 558                                            props->max_mcast_grp;
 559         props->hca_core_clock = dev->dev->caps.hca_core_clock * 1000UL;
 560         props->timestamp_mask = 0xFFFFFFFFFFFFULL;
 561         props->max_ah = INT_MAX;
 562
 563         if (mlx4_ib_port_link_layer(ibdev, 1) == IB_LINK_LAYER_ETHERNET ||
 564             mlx4_ib_port_link_layer(ibdev, 2) == IB_LINK_LAYER_ETHERNET) {
 565                 if (dev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS) {
 566                         props->rss_caps.max_rwq_indirection_tables =
 567                                 props->max_qp;
 568                         props->rss_caps.max_rwq_indirection_table_size =
 569                                 dev->dev->caps.max_rss_tbl_sz;
 570                         props->rss_caps.supported_qpts = 1 << IB_QPT_RAW_PACKET;
 571                         props->max_wq_type_rq = props->max_qp;
 572                 }
 573
 574                 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_FCS_KEEP)
 575                         props->raw_packet_caps |= IB_RAW_PACKET_CAP_SCATTER_FCS;
 576         }
 577
 578         props->cq_caps.max_cq_moderation_count = MLX4_MAX_CQ_COUNT;
 579         props->cq_caps.max_cq_moderation_period = MLX4_MAX_CQ_PERIOD;
 580
 581         if (uhw->outlen >= resp.response_length + sizeof(resp.hca_core_clock_offset)) {
 582                 resp.response_length += sizeof(resp.hca_core_clock_offset);
 583                 if (!mlx4_get_internal_clock_params(dev->dev, &clock_params)) {
 584                         resp.comp_mask |= MLX4_IB_QUERY_DEV_RESP_MASK_CORE_CLOCK_OFFSET;
 585                         resp.hca_core_clock_offset = clock_params.offset % PAGE_SIZE;
 586                 }
 587         }
 588
 589         if (uhw->outlen >= resp.response_length +
 590             sizeof(resp.max_inl_recv_sz)) {
 591                 resp.response_length += sizeof(resp.max_inl_recv_sz);
 592                 resp.max_inl_recv_sz  = dev->dev->caps.max_rq_sg *
 593                         sizeof(struct mlx4_wqe_data_seg);
 594         }
 595
 596         if (offsetofend(typeof(resp), rss_caps) <= uhw->outlen) {
 597                 if (props->rss_caps.supported_qpts) {
 598                         resp.rss_caps.rx_hash_function =
 599                                 MLX4_IB_RX_HASH_FUNC_TOEPLITZ;
 600
 601                         resp.rss_caps.rx_hash_fields_mask =
 602                                 MLX4_IB_RX_HASH_SRC_IPV4 |
 603                                 MLX4_IB_RX_HASH_DST_IPV4 |
 604                                 MLX4_IB_RX_HASH_SRC_IPV6 |
 605                                 MLX4_IB_RX_HASH_DST_IPV6 |
 606                                 MLX4_IB_RX_HASH_SRC_PORT_TCP |
 607                                 MLX4_IB_RX_HASH_DST_PORT_TCP |
 608                                 MLX4_IB_RX_HASH_SRC_PORT_UDP |
 609                                 MLX4_IB_RX_HASH_DST_PORT_UDP;
 610
 611                         if (dev->dev->caps.tunnel_offload_mode ==
 612                             MLX4_TUNNEL_OFFLOAD_MODE_VXLAN)
 613                                 resp.rss_caps.rx_hash_fields_mask |=
 614                                         MLX4_IB_RX_HASH_INNER;
 615                 }
 616                 resp.response_length = offsetof(typeof(resp), rss_caps) +
 617                                        sizeof(resp.rss_caps);
 618         }
 619
 620         if (offsetofend(typeof(resp), tso_caps) <= uhw->outlen) {
 621                 if (dev->dev->caps.max_gso_sz &&
 622                     ((mlx4_ib_port_link_layer(ibdev, 1) ==
 623                     IB_LINK_LAYER_ETHERNET) ||
 624                     (mlx4_ib_port_link_layer(ibdev, 2) ==
 625                     IB_LINK_LAYER_ETHERNET))) {
 626                         resp.tso_caps.max_tso = dev->dev->caps.max_gso_sz;
 627                         resp.tso_caps.supported_qpts |=
 628                                 1 << IB_QPT_RAW_PACKET;
 629                 }
 630                 resp.response_length = offsetof(typeof(resp), tso_caps) +
 631                                        sizeof(resp.tso_caps);
 632         }
 633
 634         if (uhw->outlen) {
 635                 err = ib_copy_to_udata(uhw, &resp, resp.response_length);
 636                 if (err)
 637                         goto out;
 638         }
 639 out:
 640         kfree(in_mad);
 641         kfree(out_mad);
 642
 643         return err;
 644 }
 645
 646 static enum rdma_link_layer
 647 mlx4_ib_port_link_layer(struct ib_device *device, u32 port_num)
 648 {
 649         struct mlx4_dev *dev = to_mdev(device)->dev;
 650
 651         return dev->caps.port_mask[port_num] == MLX4_PORT_TYPE_IB ?
 652                 IB_LINK_LAYER_INFINIBAND : IB_LINK_LAYER_ETHERNET;
 653 }
 654
 655 static int ib_link_query_port(struct ib_device *ibdev, u32 port,
 656                               struct ib_port_attr *props, int netw_view)
 657 {
 658         struct ib_smp *in_mad;
 659         struct ib_smp *out_mad;
 660         int ext_active_speed;
 661         int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
 662         int err = -ENOMEM;
 663
 664         in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
 665         out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
 666         if (!in_mad || !out_mad)
 667                 goto out;
 668
 669         ib_init_query_mad(in_mad);
 670         in_mad->attr_id  = IB_SMP_ATTR_PORT_INFO;
 671         in_mad->attr_mod = cpu_to_be32(port);
 672
 673         if (mlx4_is_mfunc(to_mdev(ibdev)->dev) && netw_view)
 674                 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
 675
 676         err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, NULL, NULL,
 677                                 in_mad, out_mad);
 678         if (err)
 679                 goto out;
 680
 681
 682         props->lid              = be16_to_cpup((__be16 *) (out_mad->data + 16));
 683         props->lmc              = out_mad->data[34] & 0x7;
 684         props->sm_lid           = be16_to_cpup((__be16 *) (out_mad->data + 18));
 685         props->sm_sl            = out_mad->data[36] & 0xf;
 686         props->state            = out_mad->data[32] & 0xf;
 687         props->phys_state       = out_mad->data[33] >> 4;
 688         props->port_cap_flags   = be32_to_cpup((__be32 *) (out_mad->data + 20));
 689         if (netw_view)
 690                 props->gid_tbl_len = out_mad->data[50];
 691         else
 692                 props->gid_tbl_len = to_mdev(ibdev)->dev->caps.gid_table_len[port];
 693         props->max_msg_sz       = to_mdev(ibdev)->dev->caps.max_msg_sz;
 694         props->pkey_tbl_len     = to_mdev(ibdev)->dev->caps.pkey_table_len[port];
 695         props->bad_pkey_cntr    = be16_to_cpup((__be16 *) (out_mad->data + 46));
 696         props->qkey_viol_cntr   = be16_to_cpup((__be16 *) (out_mad->data + 48));
 697         props->active_width     = out_mad->data[31] & 0xf;
 698         props->active_speed     = out_mad->data[35] >> 4;
 699         props->max_mtu          = out_mad->data[41] & 0xf;
 700         props->active_mtu       = out_mad->data[36] >> 4;
 701         props->subnet_timeout   = out_mad->data[51] & 0x1f;
 702         props->max_vl_num       = out_mad->data[37] >> 4;
 703         props->init_type_reply  = out_mad->data[41] >> 4;
 704
 705         /* Check if extended speeds (EDR/FDR/...) are supported */
 706         if (props->port_cap_flags & IB_PORT_EXTENDED_SPEEDS_SUP) {
 707                 ext_active_speed = out_mad->data[62] >> 4;
 708
 709                 switch (ext_active_speed) {
 710                 case 1:
 711                         props->active_speed = IB_SPEED_FDR;
 712                         break;
 713                 case 2:
 714                         props->active_speed = IB_SPEED_EDR;
 715                         break;
 716                 }
 717         }
 718
 719         /* If reported active speed is QDR, check if is FDR-10 */
 720         if (props->active_speed == IB_SPEED_QDR) {
 721                 ib_init_query_mad(in_mad);
 722                 in_mad->attr_id = MLX4_ATTR_EXTENDED_PORT_INFO;
 723                 in_mad->attr_mod = cpu_to_be32(port);
 724
 725                 err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port,
 726                                    NULL, NULL, in_mad, out_mad);
 727                 if (err)
 728                         goto out;
 729
 730                 /* Checking LinkSpeedActive for FDR-10 */
 731                 if (out_mad->data[15] & 0x1)
 732                         props->active_speed = IB_SPEED_FDR10;
 733         }
 734
 735         /* Avoid wrong speed value returned by FW if the IB link is down. */
 736         if (props->state == IB_PORT_DOWN)
 737                  props->active_speed = IB_SPEED_SDR;
 738
 739 out:
 740         kfree(in_mad);
 741         kfree(out_mad);
 742         return err;
 743 }
 744
 745 static u8 state_to_phys_state(enum ib_port_state state)
 746 {
 747         return state == IB_PORT_ACTIVE ?
 748                 IB_PORT_PHYS_STATE_LINK_UP : IB_PORT_PHYS_STATE_DISABLED;
 749 }
 750
 751 static int eth_link_query_port(struct ib_device *ibdev, u32 port,
 752                                struct ib_port_attr *props)
 753 {
 754
 755         struct mlx4_ib_dev *mdev = to_mdev(ibdev);
 756         struct mlx4_ib_iboe *iboe = &mdev->iboe;
 757         struct net_device *ndev;
 758         enum ib_mtu tmp;
 759         struct mlx4_cmd_mailbox *mailbox;
 760         int err = 0;
 761         int is_bonded = mlx4_is_bonded(mdev->dev);
 762
 763         mailbox = mlx4_alloc_cmd_mailbox(mdev->dev);
 764         if (IS_ERR(mailbox))
 765                 return PTR_ERR(mailbox);
 766
 767         err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma, port, 0,
 768                            MLX4_CMD_QUERY_PORT, MLX4_CMD_TIME_CLASS_B,
 769                            MLX4_CMD_WRAPPED);
 770         if (err)
 771                 goto out;
 772
 773         props->active_width     =  (((u8 *)mailbox->buf)[5] == 0x40) ||
 774                                    (((u8 *)mailbox->buf)[5] == 0x20 /*56Gb*/) ?
 775                                            IB_WIDTH_4X : IB_WIDTH_1X;
 776         props->active_speed     =  (((u8 *)mailbox->buf)[5] == 0x20 /*56Gb*/) ?
 777                                            IB_SPEED_FDR : IB_SPEED_QDR;
 778         props->port_cap_flags   = IB_PORT_CM_SUP;
 779         props->ip_gids = true;
 780         props->gid_tbl_len      = mdev->dev->caps.gid_table_len[port];
 781         props->max_msg_sz       = mdev->dev->caps.max_msg_sz;
 782         if (mdev->dev->caps.pkey_table_len[port])
 783                 props->pkey_tbl_len = 1;
 784         props->max_mtu          = IB_MTU_4096;
 785         props->max_vl_num       = 2;
 786         props->state            = IB_PORT_DOWN;
 787         props->phys_state       = state_to_phys_state(props->state);
 788         props->active_mtu       = IB_MTU_256;
 789         spin_lock_bh(&iboe->lock);
 790         ndev = iboe->netdevs[port - 1];
 791         if (ndev && is_bonded) {
 792                 rcu_read_lock(); /* required to get upper dev */
 793                 ndev = netdev_master_upper_dev_get_rcu(ndev);
 794                 rcu_read_unlock();
 795         }
 796         if (!ndev)
 797                 goto out_unlock;
 798
 799         tmp = iboe_get_mtu(ndev->mtu);
 800         props->active_mtu = tmp ? min(props->max_mtu, tmp) : IB_MTU_256;
 801
 802         props->state            = (netif_running(ndev) && netif_carrier_ok(ndev)) ?
 803                                         IB_PORT_ACTIVE : IB_PORT_DOWN;
 804         props->phys_state       = state_to_phys_state(props->state);
 805 out_unlock:
 806         spin_unlock_bh(&iboe->lock);
 807 out:
 808         mlx4_free_cmd_mailbox(mdev->dev, mailbox);
 809         return err;
 810 }
 811
 812 int __mlx4_ib_query_port(struct ib_device *ibdev, u32 port,
 813                          struct ib_port_attr *props, int netw_view)
 814 {
 815         int err;
 816
 817         /* props being zeroed by the caller, avoid zeroing it here */
 818
 819         err = mlx4_ib_port_link_layer(ibdev, port) == IB_LINK_LAYER_INFINIBAND ?
 820                 ib_link_query_port(ibdev, port, props, netw_view) :
 821                                 eth_link_query_port(ibdev, port, props);
 822
 823         return err;
 824 }
 825
 826 static int mlx4_ib_query_port(struct ib_device *ibdev, u32 port,
 827                               struct ib_port_attr *props)
 828 {
 829         /* returns host view */
 830         return __mlx4_ib_query_port(ibdev, port, props, 0);
 831 }
 832
 833 int __mlx4_ib_query_gid(struct ib_device *ibdev, u32 port, int index,
 834                         union ib_gid *gid, int netw_view)
 835 {
 836         struct ib_smp *in_mad;
 837         struct ib_smp *out_mad;
 838         int err = -ENOMEM;
 839         struct mlx4_ib_dev *dev = to_mdev(ibdev);
 840         int clear = 0;
 841         int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
 842
 843         in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
 844         out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
 845         if (!in_mad || !out_mad)
 846                 goto out;
 847
 848         ib_init_query_mad(in_mad);
 849         in_mad->attr_id  = IB_SMP_ATTR_PORT_INFO;
 850         in_mad->attr_mod = cpu_to_be32(port);
 851
 852         if (mlx4_is_mfunc(dev->dev) && netw_view)
 853                 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
 854
 855         err = mlx4_MAD_IFC(dev, mad_ifc_flags, port, NULL, NULL, in_mad, out_mad);
 856         if (err)
 857                 goto out;
 858
 859         memcpy(gid->raw, out_mad->data + 8, 8);
 860
 861         if (mlx4_is_mfunc(dev->dev) && !netw_view) {
 862                 if (index) {
 863                         /* For any index > 0, return the null guid */
 864                         err = 0;
 865                         clear = 1;
 866                         goto out;
 867                 }
 868         }
 869
 870         ib_init_query_mad(in_mad);
 871         in_mad->attr_id  = IB_SMP_ATTR_GUID_INFO;
 872         in_mad->attr_mod = cpu_to_be32(index / 8);
 873
 874         err = mlx4_MAD_IFC(dev, mad_ifc_flags, port,
 875                            NULL, NULL, in_mad, out_mad);
 876         if (err)
 877                 goto out;
 878
 879         memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8);
 880
 881 out:
 882         if (clear)
 883                 memset(gid->raw + 8, 0, 8);
 884         kfree(in_mad);
 885         kfree(out_mad);
 886         return err;
 887 }
 888
 889 static int mlx4_ib_query_gid(struct ib_device *ibdev, u32 port, int index,
 890                              union ib_gid *gid)
 891 {
 892         if (rdma_protocol_ib(ibdev, port))
 893                 return __mlx4_ib_query_gid(ibdev, port, index, gid, 0);
 894         return 0;
 895 }
 896
 897 static int mlx4_ib_query_sl2vl(struct ib_device *ibdev, u32 port,
 898                                u64 *sl2vl_tbl)
 899 {
 900         union sl2vl_tbl_to_u64 sl2vl64;
 901         struct ib_smp *in_mad;
 902         struct ib_smp *out_mad;
 903         int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
 904         int err = -ENOMEM;
 905         int jj;
 906
 907         if (mlx4_is_slave(to_mdev(ibdev)->dev)) {
 908                 *sl2vl_tbl = 0;
 909                 return 0;
 910         }
 911
 912         in_mad  = kzalloc(sizeof(*in_mad), GFP_KERNEL);
 913         out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL);
 914         if (!in_mad || !out_mad)
 915                 goto out;
 916
 917         ib_init_query_mad(in_mad);
 918         in_mad->attr_id  = IB_SMP_ATTR_SL_TO_VL_TABLE;
 919         in_mad->attr_mod = 0;
 920
 921         if (mlx4_is_mfunc(to_mdev(ibdev)->dev))
 922                 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
 923
 924         err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, NULL, NULL,
 925                            in_mad, out_mad);
 926         if (err)
 927                 goto out;
 928
 929         for (jj = 0; jj < 8; jj++)
 930                 sl2vl64.sl8[jj] = ((struct ib_smp *)out_mad)->data[jj];
 931         *sl2vl_tbl = sl2vl64.sl64;
 932
 933 out:
 934         kfree(in_mad);
 935         kfree(out_mad);
 936         return err;
 937 }
 938
 939 static void mlx4_init_sl2vl_tbl(struct mlx4_ib_dev *mdev)
 940 {
 941         u64 sl2vl;
 942         int i;
 943         int err;
 944
 945         for (i = 1; i <= mdev->dev->caps.num_ports; i++) {
 946                 if (mdev->dev->caps.port_type[i] == MLX4_PORT_TYPE_ETH)
 947                         continue;
 948                 err = mlx4_ib_query_sl2vl(&mdev->ib_dev, i, &sl2vl);
 949                 if (err) {
 950                         pr_err("Unable to get default sl to vl mapping for port %d.  Using all zeroes (%d)\n",
 951                                i, err);
 952                         sl2vl = 0;
 953                 }
 954                 atomic64_set(&mdev->sl2vl[i - 1], sl2vl);
 955         }
 956 }
 957
 958 int __mlx4_ib_query_pkey(struct ib_device *ibdev, u32 port, u16 index,
 959                          u16 *pkey, int netw_view)
 960 {
 961         struct ib_smp *in_mad;
 962         struct ib_smp *out_mad;
 963         int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
 964         int err = -ENOMEM;
 965
 966         in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
 967         out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
 968         if (!in_mad || !out_mad)
 969                 goto out;
 970
 971         ib_init_query_mad(in_mad);
 972         in_mad->attr_id  = IB_SMP_ATTR_PKEY_TABLE;
 973         in_mad->attr_mod = cpu_to_be32(index / 32);
 974
 975         if (mlx4_is_mfunc(to_mdev(ibdev)->dev) && netw_view)
 976                 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
 977
 978         err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, NULL, NULL,
 979                            in_mad, out_mad);
 980         if (err)
 981                 goto out;
 982
 983         *pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]);
 984
 985 out:
 986         kfree(in_mad);
 987         kfree(out_mad);
 988         return err;
 989 }
 990
 991 static int mlx4_ib_query_pkey(struct ib_device *ibdev, u32 port, u16 index,
 992                               u16 *pkey)
 993 {
 994         return __mlx4_ib_query_pkey(ibdev, port, index, pkey, 0);
 995 }
 996
 997 static int mlx4_ib_modify_device(struct ib_device *ibdev, int mask,
 998                                  struct ib_device_modify *props)
 999 {
1000         struct mlx4_cmd_mailbox *mailbox;
1001         unsigned long flags;
1002
1003         if (mask & ~IB_DEVICE_MODIFY_NODE_DESC)
1004                 return -EOPNOTSUPP;
1005
1006         if (!(mask & IB_DEVICE_MODIFY_NODE_DESC))
1007                 return 0;
1008
1009         if (mlx4_is_slave(to_mdev(ibdev)->dev))
1010                 return -EOPNOTSUPP;
1011
1012         spin_lock_irqsave(&to_mdev(ibdev)->sm_lock, flags);
1013         memcpy(ibdev->node_desc, props->node_desc, IB_DEVICE_NODE_DESC_MAX);
1014         spin_unlock_irqrestore(&to_mdev(ibdev)->sm_lock, flags);
1015
1016         /*
1017          * If possible, pass node desc to FW, so it can generate
1018          * a 144 trap.  If cmd fails, just ignore.
1019          */
1020         mailbox = mlx4_alloc_cmd_mailbox(to_mdev(ibdev)->dev);
1021         if (IS_ERR(mailbox))
1022                 return 0;
1023
1024         memcpy(mailbox->buf, props->node_desc, IB_DEVICE_NODE_DESC_MAX);
1025         mlx4_cmd(to_mdev(ibdev)->dev, mailbox->dma, 1, 0,
1026                  MLX4_CMD_SET_NODE, MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
1027
1028         mlx4_free_cmd_mailbox(to_mdev(ibdev)->dev, mailbox);
1029
1030         return 0;
1031 }
1032
1033 static int mlx4_ib_SET_PORT(struct mlx4_ib_dev *dev, u32 port,
1034                             int reset_qkey_viols, u32 cap_mask)
1035 {
1036         struct mlx4_cmd_mailbox *mailbox;
1037         int err;
1038
1039         mailbox = mlx4_alloc_cmd_mailbox(dev->dev);
1040         if (IS_ERR(mailbox))
1041                 return PTR_ERR(mailbox);
1042
1043         if (dev->dev->flags & MLX4_FLAG_OLD_PORT_CMDS) {
1044                 *(u8 *) mailbox->buf         = !!reset_qkey_viols << 6;
1045                 ((__be32 *) mailbox->buf)[2] = cpu_to_be32(cap_mask);
1046         } else {
1047                 ((u8 *) mailbox->buf)[3]     = !!reset_qkey_viols;
1048                 ((__be32 *) mailbox->buf)[1] = cpu_to_be32(cap_mask);
1049         }
1050
1051         err = mlx4_cmd(dev->dev, mailbox->dma, port, MLX4_SET_PORT_IB_OPCODE,
1052                        MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B,
1053                        MLX4_CMD_WRAPPED);
1054
1055         mlx4_free_cmd_mailbox(dev->dev, mailbox);
1056         return err;
1057 }
1058
1059 static int mlx4_ib_modify_port(struct ib_device *ibdev, u32 port, int mask,
1060                                struct ib_port_modify *props)
1061 {
1062         struct mlx4_ib_dev *mdev = to_mdev(ibdev);
1063         u8 is_eth = mdev->dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH;
1064         struct ib_port_attr attr;
1065         u32 cap_mask;
1066         int err;
1067
1068         /* return OK if this is RoCE. CM calls ib_modify_port() regardless
1069          * of whether port link layer is ETH or IB. For ETH ports, qkey
1070          * violations and port capabilities are not meaningful.
1071          */
1072         if (is_eth)
1073                 return 0;
1074
1075         mutex_lock(&mdev->cap_mask_mutex);
1076
1077         err = ib_query_port(ibdev, port, &attr);
1078         if (err)
1079                 goto out;
1080
1081         cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) &
1082                 ~props->clr_port_cap_mask;
1083
1084         err = mlx4_ib_SET_PORT(mdev, port,
1085                                !!(mask & IB_PORT_RESET_QKEY_CNTR),
1086                                cap_mask);
1087
1088 out:
1089         mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex);
1090         return err;
1091 }
1092
1093 static int mlx4_ib_alloc_ucontext(struct ib_ucontext *uctx,
1094                                   struct ib_udata *udata)
1095 {
1096         struct ib_device *ibdev = uctx->device;
1097         struct mlx4_ib_dev *dev = to_mdev(ibdev);
1098         struct mlx4_ib_ucontext *context = to_mucontext(uctx);
1099         struct mlx4_ib_alloc_ucontext_resp_v3 resp_v3;
1100         struct mlx4_ib_alloc_ucontext_resp resp;
1101         int err;
1102
1103         if (!dev->ib_active)
1104                 return -EAGAIN;
1105
1106         if (ibdev->ops.uverbs_abi_ver ==
1107             MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION) {
1108                 resp_v3.qp_tab_size      = dev->dev->caps.num_qps;
1109                 resp_v3.bf_reg_size      = dev->dev->caps.bf_reg_size;
1110                 resp_v3.bf_regs_per_page = dev->dev->caps.bf_regs_per_page;
1111         } else {
1112                 resp.dev_caps         = dev->dev->caps.userspace_caps;
1113                 resp.qp_tab_size      = dev->dev->caps.num_qps;
1114                 resp.bf_reg_size      = dev->dev->caps.bf_reg_size;
1115                 resp.bf_regs_per_page = dev->dev->caps.bf_regs_per_page;
1116                 resp.cqe_size         = dev->dev->caps.cqe_size;
1117         }
1118
1119         err = mlx4_uar_alloc(to_mdev(ibdev)->dev, &context->uar);
1120         if (err)
1121                 return err;
1122
1123         INIT_LIST_HEAD(&context->db_page_list);
1124         mutex_init(&context->db_page_mutex);
1125
1126         INIT_LIST_HEAD(&context->wqn_ranges_list);
1127         mutex_init(&context->wqn_ranges_mutex);
1128
1129         if (ibdev->ops.uverbs_abi_ver == MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION)
1130                 err = ib_copy_to_udata(udata, &resp_v3, sizeof(resp_v3));
1131         else
1132                 err = ib_copy_to_udata(udata, &resp, sizeof(resp));
1133
1134         if (err) {
1135                 mlx4_uar_free(to_mdev(ibdev)->dev, &context->uar);
1136                 return -EFAULT;
1137         }
1138
1139         return err;
1140 }
1141
1142 static void mlx4_ib_dealloc_ucontext(struct ib_ucontext *ibcontext)
1143 {
1144         struct mlx4_ib_ucontext *context = to_mucontext(ibcontext);
1145
1146         mlx4_uar_free(to_mdev(ibcontext->device)->dev, &context->uar);
1147 }
1148
1149 static void mlx4_ib_disassociate_ucontext(struct ib_ucontext *ibcontext)
1150 {
1151 }
1152
1153 static int mlx4_ib_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
1154 {
1155         struct mlx4_ib_dev *dev = to_mdev(context->device);
1156
1157         switch (vma->vm_pgoff) {
1158         case 0:
1159                 return rdma_user_mmap_io(context, vma,
1160                                          to_mucontext(context)->uar.pfn,
1161                                          PAGE_SIZE,
1162                                          pgprot_noncached(vma->vm_page_prot),
1163                                          NULL);
1164
1165         case 1:
1166                 if (dev->dev->caps.bf_reg_size == 0)
1167                         return -EINVAL;
1168                 return rdma_user_mmap_io(
1169                         context, vma,
1170                         to_mucontext(context)->uar.pfn +
1171                                 dev->dev->caps.num_uars,
1172                         PAGE_SIZE, pgprot_writecombine(vma->vm_page_prot),
1173                         NULL);
1174
1175         case 3: {
1176                 struct mlx4_clock_params params;
1177                 int ret;
1178
1179                 ret = mlx4_get_internal_clock_params(dev->dev, &params);
1180                 if (ret)
1181                         return ret;
1182
1183                 return rdma_user_mmap_io(
1184                         context, vma,
1185                         (pci_resource_start(dev->dev->persist->pdev,
1186                                             params.bar) +
1187                          params.offset) >>
1188                                 PAGE_SHIFT,
1189                         PAGE_SIZE, pgprot_noncached(vma->vm_page_prot),
1190                         NULL);
1191         }
1192
1193         default:
1194                 return -EINVAL;
1195         }
1196 }
1197
1198 static int mlx4_ib_alloc_pd(struct ib_pd *ibpd, struct ib_udata *udata)
1199 {
1200         struct mlx4_ib_pd *pd = to_mpd(ibpd);
1201         struct ib_device *ibdev = ibpd->device;
1202         int err;
1203
1204         err = mlx4_pd_alloc(to_mdev(ibdev)->dev, &pd->pdn);
1205         if (err)
1206                 return err;
1207
1208         if (udata && ib_copy_to_udata(udata, &pd->pdn, sizeof(__u32))) {
1209                 mlx4_pd_free(to_mdev(ibdev)->dev, pd->pdn);
1210                 return -EFAULT;
1211         }
1212         return 0;
1213 }
1214
1215 static int mlx4_ib_dealloc_pd(struct ib_pd *pd, struct ib_udata *udata)
1216 {
1217         mlx4_pd_free(to_mdev(pd->device)->dev, to_mpd(pd)->pdn);
1218         return 0;
1219 }
1220
1221 static int mlx4_ib_alloc_xrcd(struct ib_xrcd *ibxrcd, struct ib_udata *udata)
1222 {
1223         struct mlx4_ib_dev *dev = to_mdev(ibxrcd->device);
1224         struct mlx4_ib_xrcd *xrcd = to_mxrcd(ibxrcd);
1225         struct ib_cq_init_attr cq_attr = {};
1226         int err;
1227
1228         if (!(dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC))
1229                 return -EOPNOTSUPP;
1230
1231         err = mlx4_xrcd_alloc(dev->dev, &xrcd->xrcdn);
1232         if (err)
1233                 return err;
1234
1235         xrcd->pd = ib_alloc_pd(ibxrcd->device, 0);
1236         if (IS_ERR(xrcd->pd)) {
1237                 err = PTR_ERR(xrcd->pd);
1238                 goto err2;
1239         }
1240
1241         cq_attr.cqe = 1;
1242         xrcd->cq = ib_create_cq(ibxrcd->device, NULL, NULL, xrcd, &cq_attr);
1243         if (IS_ERR(xrcd->cq)) {
1244                 err = PTR_ERR(xrcd->cq);
1245                 goto err3;
1246         }
1247
1248         return 0;
1249
1250 err3:
1251         ib_dealloc_pd(xrcd->pd);
1252 err2:
1253         mlx4_xrcd_free(dev->dev, xrcd->xrcdn);
1254         return err;
1255 }
1256
1257 static int mlx4_ib_dealloc_xrcd(struct ib_xrcd *xrcd, struct ib_udata *udata)
1258 {
1259         ib_destroy_cq(to_mxrcd(xrcd)->cq);
1260         ib_dealloc_pd(to_mxrcd(xrcd)->pd);
1261         mlx4_xrcd_free(to_mdev(xrcd->device)->dev, to_mxrcd(xrcd)->xrcdn);
1262         return 0;
1263 }
1264
1265 static int add_gid_entry(struct ib_qp *ibqp, union ib_gid *gid)
1266 {
1267         struct mlx4_ib_qp *mqp = to_mqp(ibqp);
1268         struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
1269         struct mlx4_ib_gid_entry *ge;
1270
1271         ge = kzalloc(sizeof *ge, GFP_KERNEL);
1272         if (!ge)
1273                 return -ENOMEM;
1274
1275         ge->gid = *gid;
1276         if (mlx4_ib_add_mc(mdev, mqp, gid)) {
1277                 ge->port = mqp->port;
1278                 ge->added = 1;
1279         }
1280
1281         mutex_lock(&mqp->mutex);
1282         list_add_tail(&ge->list, &mqp->gid_list);
1283         mutex_unlock(&mqp->mutex);
1284
1285         return 0;
1286 }
1287
1288 static void mlx4_ib_delete_counters_table(struct mlx4_ib_dev *ibdev,
1289                                           struct mlx4_ib_counters *ctr_table)
1290 {
1291         struct counter_index *counter, *tmp_count;
1292
1293         mutex_lock(&ctr_table->mutex);
1294         list_for_each_entry_safe(counter, tmp_count, &ctr_table->counters_list,
1295                                  list) {
1296                 if (counter->allocated)
1297                         mlx4_counter_free(ibdev->dev, counter->index);
1298                 list_del(&counter->list);
1299                 kfree(counter);
1300         }
1301         mutex_unlock(&ctr_table->mutex);
1302 }
1303
1304 int mlx4_ib_add_mc(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
1305                    union ib_gid *gid)
1306 {
1307         struct net_device *ndev;
1308         int ret = 0;
1309
1310         if (!mqp->port)
1311                 return 0;
1312
1313         spin_lock_bh(&mdev->iboe.lock);
1314         ndev = mdev->iboe.netdevs[mqp->port - 1];
1315         dev_hold(ndev);
1316         spin_unlock_bh(&mdev->iboe.lock);
1317
1318         if (ndev) {
1319                 ret = 1;
1320                 dev_put(ndev);
1321         }
1322
1323         return ret;
1324 }
1325
1326 struct mlx4_ib_steering {
1327         struct list_head list;
1328         struct mlx4_flow_reg_id reg_id;
1329         union ib_gid gid;
1330 };
1331
1332 #define LAST_ETH_FIELD vlan_tag
1333 #define LAST_IB_FIELD sl
1334 #define LAST_IPV4_FIELD dst_ip
1335 #define LAST_TCP_UDP_FIELD src_port
1336
1337 /* Field is the last supported field */
1338 #define FIELDS_NOT_SUPPORTED(filter, field)\
1339         memchr_inv((void *)&filter.field  +\
1340                    sizeof(filter.field), 0,\
1341                    sizeof(filter) -\
1342                    offsetof(typeof(filter), field) -\
1343                    sizeof(filter.field))
1344
1345 static int parse_flow_attr(struct mlx4_dev *dev,
1346                            u32 qp_num,
1347                            union ib_flow_spec *ib_spec,
1348                            struct _rule_hw *mlx4_spec)
1349 {
1350         enum mlx4_net_trans_rule_id type;
1351
1352         switch (ib_spec->type) {
1353         case IB_FLOW_SPEC_ETH:
1354                 if (FIELDS_NOT_SUPPORTED(ib_spec->eth.mask, LAST_ETH_FIELD))
1355                         return -ENOTSUPP;
1356
1357                 type = MLX4_NET_TRANS_RULE_ID_ETH;
1358                 memcpy(mlx4_spec->eth.dst_mac, ib_spec->eth.val.dst_mac,
1359                        ETH_ALEN);
1360                 memcpy(mlx4_spec->eth.dst_mac_msk, ib_spec->eth.mask.dst_mac,
1361                        ETH_ALEN);
1362                 mlx4_spec->eth.vlan_tag = ib_spec->eth.val.vlan_tag;
1363                 mlx4_spec->eth.vlan_tag_msk = ib_spec->eth.mask.vlan_tag;
1364                 break;
1365         case IB_FLOW_SPEC_IB:
1366                 if (FIELDS_NOT_SUPPORTED(ib_spec->ib.mask, LAST_IB_FIELD))
1367                         return -ENOTSUPP;
1368
1369                 type = MLX4_NET_TRANS_RULE_ID_IB;
1370                 mlx4_spec->ib.l3_qpn =
1371                         cpu_to_be32(qp_num);
1372                 mlx4_spec->ib.qpn_mask =
1373                         cpu_to_be32(MLX4_IB_FLOW_QPN_MASK);
1374                 break;
1375
1376
1377         case IB_FLOW_SPEC_IPV4:
1378                 if (FIELDS_NOT_SUPPORTED(ib_spec->ipv4.mask, LAST_IPV4_FIELD))
1379                         return -ENOTSUPP;
1380
1381                 type = MLX4_NET_TRANS_RULE_ID_IPV4;
1382                 mlx4_spec->ipv4.src_ip = ib_spec->ipv4.val.src_ip;
1383                 mlx4_spec->ipv4.src_ip_msk = ib_spec->ipv4.mask.src_ip;
1384                 mlx4_spec->ipv4.dst_ip = ib_spec->ipv4.val.dst_ip;
1385                 mlx4_spec->ipv4.dst_ip_msk = ib_spec->ipv4.mask.dst_ip;
1386                 break;
1387
1388         case IB_FLOW_SPEC_TCP:
1389         case IB_FLOW_SPEC_UDP:
1390                 if (FIELDS_NOT_SUPPORTED(ib_spec->tcp_udp.mask, LAST_TCP_UDP_FIELD))
1391                         return -ENOTSUPP;
1392
1393                 type = ib_spec->type == IB_FLOW_SPEC_TCP ?
1394                                         MLX4_NET_TRANS_RULE_ID_TCP :
1395                                         MLX4_NET_TRANS_RULE_ID_UDP;
1396                 mlx4_spec->tcp_udp.dst_port = ib_spec->tcp_udp.val.dst_port;
1397                 mlx4_spec->tcp_udp.dst_port_msk = ib_spec->tcp_udp.mask.dst_port;
1398                 mlx4_spec->tcp_udp.src_port = ib_spec->tcp_udp.val.src_port;
1399                 mlx4_spec->tcp_udp.src_port_msk = ib_spec->tcp_udp.mask.src_port;
1400                 break;
1401
1402         default:
1403                 return -EINVAL;
1404         }
1405         if (mlx4_map_sw_to_hw_steering_id(dev, type) < 0 ||
1406             mlx4_hw_rule_sz(dev, type) < 0)
1407                 return -EINVAL;
1408         mlx4_spec->id = cpu_to_be16(mlx4_map_sw_to_hw_steering_id(dev, type));
1409         mlx4_spec->size = mlx4_hw_rule_sz(dev, type) >> 2;
1410         return mlx4_hw_rule_sz(dev, type);
1411 }
1412
1413 struct default_rules {
1414         __u32 mandatory_fields[IB_FLOW_SPEC_SUPPORT_LAYERS];
1415         __u32 mandatory_not_fields[IB_FLOW_SPEC_SUPPORT_LAYERS];
1416         __u32 rules_create_list[IB_FLOW_SPEC_SUPPORT_LAYERS];
1417         __u8  link_layer;
1418 };
1419 static const struct default_rules default_table[] = {
1420         {
1421                 .mandatory_fields = {IB_FLOW_SPEC_IPV4},
1422                 .mandatory_not_fields = {IB_FLOW_SPEC_ETH},
1423                 .rules_create_list = {IB_FLOW_SPEC_IB},
1424                 .link_layer = IB_LINK_LAYER_INFINIBAND
1425         }
1426 };
1427
1428 static int __mlx4_ib_default_rules_match(struct ib_qp *qp,
1429                                          struct ib_flow_attr *flow_attr)
1430 {
1431         int i, j, k;
1432         void *ib_flow;
1433         const struct default_rules *pdefault_rules = default_table;
1434         u8 link_layer = rdma_port_get_link_layer(qp->device, flow_attr->port);
1435
1436         for (i = 0; i < ARRAY_SIZE(default_table); i++, pdefault_rules++) {
1437                 __u32 field_types[IB_FLOW_SPEC_SUPPORT_LAYERS];
1438                 memset(&field_types, 0, sizeof(field_types));
1439
1440                 if (link_layer != pdefault_rules->link_layer)
1441                         continue;
1442
1443                 ib_flow = flow_attr + 1;
1444                 /* we assume the specs are sorted */
1445                 for (j = 0, k = 0; k < IB_FLOW_SPEC_SUPPORT_LAYERS &&
1446                      j < flow_attr->num_of_specs; k++) {
1447                         union ib_flow_spec *current_flow =
1448                                 (union ib_flow_spec *)ib_flow;
1449
1450                         /* same layer but different type */
1451                         if (((current_flow->type & IB_FLOW_SPEC_LAYER_MASK) ==
1452                              (pdefault_rules->mandatory_fields[k] &
1453                               IB_FLOW_SPEC_LAYER_MASK)) &&
1454                             (current_flow->type !=
1455                              pdefault_rules->mandatory_fields[k]))
1456                                 goto out;
1457
1458                         /* same layer, try match next one */
1459                         if (current_flow->type ==
1460                             pdefault_rules->mandatory_fields[k]) {
1461                                 j++;
1462                                 ib_flow +=
1463                                         ((union ib_flow_spec *)ib_flow)->size;
1464                         }
1465                 }
1466
1467                 ib_flow = flow_attr + 1;
1468                 for (j = 0; j < flow_attr->num_of_specs;
1469                      j++, ib_flow += ((union ib_flow_spec *)ib_flow)->size)
1470                         for (k = 0; k < IB_FLOW_SPEC_SUPPORT_LAYERS; k++)
1471                                 /* same layer and same type */
1472                                 if (((union ib_flow_spec *)ib_flow)->type ==
1473                                     pdefault_rules->mandatory_not_fields[k])
1474                                         goto out;
1475
1476                 return i;
1477         }
1478 out:
1479         return -1;
1480 }
1481
1482 static int __mlx4_ib_create_default_rules(
1483                 struct mlx4_ib_dev *mdev,
1484                 struct ib_qp *qp,
1485                 const struct default_rules *pdefault_rules,
1486                 struct _rule_hw *mlx4_spec) {
1487         int size = 0;
1488         int i;
1489
1490         for (i = 0; i < ARRAY_SIZE(pdefault_rules->rules_create_list); i++) {
1491                 union ib_flow_spec ib_spec = {};
1492                 int ret;
1493
1494                 switch (pdefault_rules->rules_create_list[i]) {
1495                 case 0:
1496                         /* no rule */
1497                         continue;
1498                 case IB_FLOW_SPEC_IB:
1499                         ib_spec.type = IB_FLOW_SPEC_IB;
1500                         ib_spec.size = sizeof(struct ib_flow_spec_ib);
1501
1502                         break;
1503                 default:
1504                         /* invalid rule */
1505                         return -EINVAL;
1506                 }
1507                 /* We must put empty rule, qpn is being ignored */
1508                 ret = parse_flow_attr(mdev->dev, 0, &ib_spec,
1509                                       mlx4_spec);
1510                 if (ret < 0) {
1511                         pr_info("invalid parsing\n");
1512                         return -EINVAL;
1513                 }
1514
1515                 mlx4_spec = (void *)mlx4_spec + ret;
1516                 size += ret;
1517         }
1518         return size;
1519 }
1520
1521 static int __mlx4_ib_create_flow(struct ib_qp *qp, struct ib_flow_attr *flow_attr,
1522                           int domain,
1523                           enum mlx4_net_trans_promisc_mode flow_type,
1524                           u64 *reg_id)
1525 {
1526         int ret, i;
1527         int size = 0;
1528         void *ib_flow;
1529         struct mlx4_ib_dev *mdev = to_mdev(qp->device);
1530         struct mlx4_cmd_mailbox *mailbox;
1531         struct mlx4_net_trans_rule_hw_ctrl *ctrl;
1532         int default_flow;
1533
1534         if (flow_attr->priority > MLX4_IB_FLOW_MAX_PRIO) {
1535                 pr_err("Invalid priority value %d\n", flow_attr->priority);
1536                 return -EINVAL;
1537         }
1538
1539         if (mlx4_map_sw_to_hw_steering_mode(mdev->dev, flow_type) < 0)
1540                 return -EINVAL;
1541
1542         mailbox = mlx4_alloc_cmd_mailbox(mdev->dev);
1543         if (IS_ERR(mailbox))
1544                 return PTR_ERR(mailbox);
1545         ctrl = mailbox->buf;
1546
1547         ctrl->prio = cpu_to_be16(domain | flow_attr->priority);
1548         ctrl->type = mlx4_map_sw_to_hw_steering_mode(mdev->dev, flow_type);
1549         ctrl->port = flow_attr->port;
1550         ctrl->qpn = cpu_to_be32(qp->qp_num);
1551
1552         ib_flow = flow_attr + 1;
1553         size += sizeof(struct mlx4_net_trans_rule_hw_ctrl);
1554         /* Add default flows */
1555         default_flow = __mlx4_ib_default_rules_match(qp, flow_attr);
1556         if (default_flow >= 0) {
1557                 ret = __mlx4_ib_create_default_rules(
1558                                 mdev, qp, default_table + default_flow,
1559                                 mailbox->buf + size);
1560                 if (ret < 0) {
1561                         mlx4_free_cmd_mailbox(mdev->dev, mailbox);
1562                         return -EINVAL;
1563                 }
1564                 size += ret;
1565         }
1566         for (i = 0; i < flow_attr->num_of_specs; i++) {
1567                 ret = parse_flow_attr(mdev->dev, qp->qp_num, ib_flow,
1568                                       mailbox->buf + size);
1569                 if (ret < 0) {
1570                         mlx4_free_cmd_mailbox(mdev->dev, mailbox);
1571                         return -EINVAL;
1572                 }
1573                 ib_flow += ((union ib_flow_spec *) ib_flow)->size;
1574                 size += ret;
1575         }
1576
1577         if (mlx4_is_master(mdev->dev) && flow_type == MLX4_FS_REGULAR &&
1578             flow_attr->num_of_specs == 1) {
1579                 struct _rule_hw *rule_header = (struct _rule_hw *)(ctrl + 1);
1580                 enum ib_flow_spec_type header_spec =
1581                         ((union ib_flow_spec *)(flow_attr + 1))->type;
1582
1583                 if (header_spec == IB_FLOW_SPEC_ETH)
1584                         mlx4_handle_eth_header_mcast_prio(ctrl, rule_header);
1585         }
1586
1587         ret = mlx4_cmd_imm(mdev->dev, mailbox->dma, reg_id, size >> 2, 0,
1588                            MLX4_QP_FLOW_STEERING_ATTACH, MLX4_CMD_TIME_CLASS_A,
1589                            MLX4_CMD_NATIVE);
1590         if (ret == -ENOMEM)
1591                 pr_err("mcg table is full. Fail to register network rule.\n");
1592         else if (ret == -ENXIO)
1593                 pr_err("Device managed flow steering is disabled. Fail to register network rule.\n");
1594         else if (ret)
1595                 pr_err("Invalid argument. Fail to register network rule.\n");
1596
1597         mlx4_free_cmd_mailbox(mdev->dev, mailbox);
1598         return ret;
1599 }
1600
1601 static int __mlx4_ib_destroy_flow(struct mlx4_dev *dev, u64 reg_id)
1602 {
1603         int err;
1604         err = mlx4_cmd(dev, reg_id, 0, 0,
1605                        MLX4_QP_FLOW_STEERING_DETACH, MLX4_CMD_TIME_CLASS_A,
1606                        MLX4_CMD_NATIVE);
1607         if (err)
1608                 pr_err("Fail to detach network rule. registration id = 0x%llx\n",
1609                        reg_id);
1610         return err;
1611 }
1612
1613 static int mlx4_ib_tunnel_steer_add(struct ib_qp *qp, struct ib_flow_attr *flow_attr,
1614                                     u64 *reg_id)
1615 {
1616         void *ib_flow;
1617         union ib_flow_spec *ib_spec;
1618         struct mlx4_dev *dev = to_mdev(qp->device)->dev;
1619         int err = 0;
1620
1621         if (dev->caps.tunnel_offload_mode != MLX4_TUNNEL_OFFLOAD_MODE_VXLAN ||
1622             dev->caps.dmfs_high_steer_mode == MLX4_STEERING_DMFS_A0_STATIC)
1623                 return 0; /* do nothing */
1624
1625         ib_flow = flow_attr + 1;
1626         ib_spec = (union ib_flow_spec *)ib_flow;
1627
1628         if (ib_spec->type !=  IB_FLOW_SPEC_ETH || flow_attr->num_of_specs != 1)
1629                 return 0; /* do nothing */
1630
1631         err = mlx4_tunnel_steer_add(to_mdev(qp->device)->dev, ib_spec->eth.val.dst_mac,
1632                                     flow_attr->port, qp->qp_num,
1633                                     MLX4_DOMAIN_UVERBS | (flow_attr->priority & 0xff),
1634                                     reg_id);
1635         return err;
1636 }
1637
1638 static int mlx4_ib_add_dont_trap_rule(struct mlx4_dev *dev,
1639                                       struct ib_flow_attr *flow_attr,
1640                                       enum mlx4_net_trans_promisc_mode *type)
1641 {
1642         int err = 0;
1643
1644         if (!(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_DMFS_UC_MC_SNIFFER) ||
1645             (dev->caps.dmfs_high_steer_mode == MLX4_STEERING_DMFS_A0_STATIC) ||
1646             (flow_attr->num_of_specs > 1) || (flow_attr->priority != 0)) {
1647                 return -EOPNOTSUPP;
1648         }
1649
1650         if (flow_attr->num_of_specs == 0) {
1651                 type[0] = MLX4_FS_MC_SNIFFER;
1652                 type[1] = MLX4_FS_UC_SNIFFER;
1653         } else {
1654                 union ib_flow_spec *ib_spec;
1655
1656                 ib_spec = (union ib_flow_spec *)(flow_attr + 1);
1657                 if (ib_spec->type !=  IB_FLOW_SPEC_ETH)
1658                         return -EINVAL;
1659
1660                 /* if all is zero than MC and UC */
1661                 if (is_zero_ether_addr(ib_spec->eth.mask.dst_mac)) {
1662                         type[0] = MLX4_FS_MC_SNIFFER;
1663                         type[1] = MLX4_FS_UC_SNIFFER;
1664                 } else {
1665                         u8 mac[ETH_ALEN] = {ib_spec->eth.mask.dst_mac[0] ^ 0x01,
1666                                             ib_spec->eth.mask.dst_mac[1],
1667                                             ib_spec->eth.mask.dst_mac[2],
1668                                             ib_spec->eth.mask.dst_mac[3],
1669                                             ib_spec->eth.mask.dst_mac[4],
1670                                             ib_spec->eth.mask.dst_mac[5]};
1671
1672                         /* Above xor was only on MC bit, non empty mask is valid
1673                          * only if this bit is set and rest are zero.
1674                          */
1675                         if (!is_zero_ether_addr(&mac[0]))
1676                                 return -EINVAL;
1677
1678                         if (is_multicast_ether_addr(ib_spec->eth.val.dst_mac))
1679                                 type[0] = MLX4_FS_MC_SNIFFER;
1680                         else
1681                                 type[0] = MLX4_FS_UC_SNIFFER;
1682                 }
1683         }
1684
1685         return err;
1686 }
1687
1688 static struct ib_flow *mlx4_ib_create_flow(struct ib_qp *qp,
1689                                            struct ib_flow_attr *flow_attr,
1690                                            struct ib_udata *udata)
1691 {
1692         int err = 0, i = 0, j = 0;
1693         struct mlx4_ib_flow *mflow;
1694         enum mlx4_net_trans_promisc_mode type[2];
1695         struct mlx4_dev *dev = (to_mdev(qp->device))->dev;
1696         int is_bonded = mlx4_is_bonded(dev);
1697
1698         if (flow_attr->flags & ~IB_FLOW_ATTR_FLAGS_DONT_TRAP)
1699                 return ERR_PTR(-EOPNOTSUPP);
1700
1701         if ((flow_attr->flags & IB_FLOW_ATTR_FLAGS_DONT_TRAP) &&
1702             (flow_attr->type != IB_FLOW_ATTR_NORMAL))
1703                 return ERR_PTR(-EOPNOTSUPP);
1704
1705         if (udata &&
1706             udata->inlen && !ib_is_udata_cleared(udata, 0, udata->inlen))
1707                 return ERR_PTR(-EOPNOTSUPP);
1708
1709         memset(type, 0, sizeof(type));
1710
1711         mflow = kzalloc(sizeof(*mflow), GFP_KERNEL);
1712         if (!mflow) {
1713                 err = -ENOMEM;
1714                 goto err_free;
1715         }
1716
1717         switch (flow_attr->type) {
1718         case IB_FLOW_ATTR_NORMAL:
1719                 /* If dont trap flag (continue match) is set, under specific
1720                  * condition traffic be replicated to given qp,
1721                  * without stealing it
1722                  */
1723                 if (unlikely(flow_attr->flags & IB_FLOW_ATTR_FLAGS_DONT_TRAP)) {
1724                         err = mlx4_ib_add_dont_trap_rule(dev,
1725                                                          flow_attr,
1726                                                          type);
1727                         if (err)
1728                                 goto err_free;
1729                 } else {
1730                         type[0] = MLX4_FS_REGULAR;
1731                 }
1732                 break;
1733
1734         case IB_FLOW_ATTR_ALL_DEFAULT:
1735                 type[0] = MLX4_FS_ALL_DEFAULT;
1736                 break;
1737
1738         case IB_FLOW_ATTR_MC_DEFAULT:
1739                 type[0] = MLX4_FS_MC_DEFAULT;
1740                 break;
1741
1742         case IB_FLOW_ATTR_SNIFFER:
1743                 type[0] = MLX4_FS_MIRROR_RX_PORT;
1744                 type[1] = MLX4_FS_MIRROR_SX_PORT;
1745                 break;
1746
1747         default:
1748                 err = -EINVAL;
1749                 goto err_free;
1750         }
1751
1752         while (i < ARRAY_SIZE(type) && type[i]) {
1753                 err = __mlx4_ib_create_flow(qp, flow_attr, MLX4_DOMAIN_UVERBS,
1754                                             type[i], &mflow->reg_id[i].id);
1755                 if (err)
1756                         goto err_create_flow;
1757                 if (is_bonded) {
1758                         /* Application always sees one port so the mirror rule
1759                          * must be on port #2
1760                          */
1761                         flow_attr->port = 2;
1762                         err = __mlx4_ib_create_flow(qp, flow_attr,
1763                                                     MLX4_DOMAIN_UVERBS, type[j],
1764                                                     &mflow->reg_id[j].mirror);
1765                         flow_attr->port = 1;
1766                         if (err)
1767                                 goto err_create_flow;
1768                         j++;
1769                 }
1770
1771                 i++;
1772         }
1773
1774         if (i < ARRAY_SIZE(type) && flow_attr->type == IB_FLOW_ATTR_NORMAL) {
1775                 err = mlx4_ib_tunnel_steer_add(qp, flow_attr,
1776                                                &mflow->reg_id[i].id);
1777                 if (err)
1778                         goto err_create_flow;
1779
1780                 if (is_bonded) {
1781                         flow_attr->port = 2;
1782                         err = mlx4_ib_tunnel_steer_add(qp, flow_attr,
1783                                                        &mflow->reg_id[j].mirror);
1784                         flow_attr->port = 1;
1785                         if (err)
1786                                 goto err_create_flow;
1787                         j++;
1788                 }
1789                 /* function to create mirror rule */
1790                 i++;
1791         }
1792
1793         return &mflow->ibflow;
1794
1795 err_create_flow:
1796         while (i) {
1797                 (void)__mlx4_ib_destroy_flow(to_mdev(qp->device)->dev,
1798                                              mflow->reg_id[i].id);
1799                 i--;
1800         }
1801
1802         while (j) {
1803                 (void)__mlx4_ib_destroy_flow(to_mdev(qp->device)->dev,
1804                                              mflow->reg_id[j].mirror);
1805                 j--;
1806         }
1807 err_free:
1808         kfree(mflow);
1809         return ERR_PTR(err);
1810 }
1811
1812 static int mlx4_ib_destroy_flow(struct ib_flow *flow_id)
1813 {
1814         int err, ret = 0;
1815         int i = 0;
1816         struct mlx4_ib_dev *mdev = to_mdev(flow_id->qp->device);
1817         struct mlx4_ib_flow *mflow = to_mflow(flow_id);
1818
1819         while (i < ARRAY_SIZE(mflow->reg_id) && mflow->reg_id[i].id) {
1820                 err = __mlx4_ib_destroy_flow(mdev->dev, mflow->reg_id[i].id);
1821                 if (err)
1822                         ret = err;
1823                 if (mflow->reg_id[i].mirror) {
1824                         err = __mlx4_ib_destroy_flow(mdev->dev,
1825                                                      mflow->reg_id[i].mirror);
1826                         if (err)
1827                                 ret = err;
1828                 }
1829                 i++;
1830         }
1831
1832         kfree(mflow);
1833         return ret;
1834 }
1835
1836 static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
1837 {
1838         int err;
1839         struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
1840         struct mlx4_dev *dev = mdev->dev;
1841         struct mlx4_ib_qp *mqp = to_mqp(ibqp);
1842         struct mlx4_ib_steering *ib_steering = NULL;
1843         enum mlx4_protocol prot = MLX4_PROT_IB_IPV6;
1844         struct mlx4_flow_reg_id reg_id;
1845
1846         if (mdev->dev->caps.steering_mode ==
1847             MLX4_STEERING_MODE_DEVICE_MANAGED) {
1848                 ib_steering = kmalloc(sizeof(*ib_steering), GFP_KERNEL);
1849                 if (!ib_steering)
1850                         return -ENOMEM;
1851         }
1852
1853         err = mlx4_multicast_attach(mdev->dev, &mqp->mqp, gid->raw, mqp->port,
1854                                     !!(mqp->flags &
1855                                        MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK),
1856                                     prot, &reg_id.id);
1857         if (err) {
1858                 pr_err("multicast attach op failed, err %d\n", err);
1859                 goto err_malloc;
1860         }
1861
1862         reg_id.mirror = 0;
1863         if (mlx4_is_bonded(dev)) {
1864                 err = mlx4_multicast_attach(mdev->dev, &mqp->mqp, gid->raw,
1865                                             (mqp->port == 1) ? 2 : 1,
1866                                             !!(mqp->flags &
1867                                             MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK),
1868                                             prot, &reg_id.mirror);
1869                 if (err)
1870                         goto err_add;
1871         }
1872
1873         err = add_gid_entry(ibqp, gid);
1874         if (err)
1875                 goto err_add;
1876
1877         if (ib_steering) {
1878                 memcpy(ib_steering->gid.raw, gid->raw, 16);
1879                 ib_steering->reg_id = reg_id;
1880                 mutex_lock(&mqp->mutex);
1881                 list_add(&ib_steering->list, &mqp->steering_rules);
1882                 mutex_unlock(&mqp->mutex);
1883         }
1884         return 0;
1885
1886 err_add:
1887         mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw,
1888                               prot, reg_id.id);
1889         if (reg_id.mirror)
1890                 mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw,
1891                                       prot, reg_id.mirror);
1892 err_malloc:
1893         kfree(ib_steering);
1894
1895         return err;
1896 }
1897
1898 static struct mlx4_ib_gid_entry *find_gid_entry(struct mlx4_ib_qp *qp, u8 *raw)
1899 {
1900         struct mlx4_ib_gid_entry *ge;
1901         struct mlx4_ib_gid_entry *tmp;
1902         struct mlx4_ib_gid_entry *ret = NULL;
1903
1904         list_for_each_entry_safe(ge, tmp, &qp->gid_list, list) {
1905                 if (!memcmp(raw, ge->gid.raw, 16)) {
1906                         ret = ge;
1907                         break;
1908                 }
1909         }
1910
1911         return ret;
1912 }
1913
1914 static int mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
1915 {
1916         int err;
1917         struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
1918         struct mlx4_dev *dev = mdev->dev;
1919         struct mlx4_ib_qp *mqp = to_mqp(ibqp);
1920         struct net_device *ndev;
1921         struct mlx4_ib_gid_entry *ge;
1922         struct mlx4_flow_reg_id reg_id = {0, 0};
1923         enum mlx4_protocol prot =  MLX4_PROT_IB_IPV6;
1924
1925         if (mdev->dev->caps.steering_mode ==
1926             MLX4_STEERING_MODE_DEVICE_MANAGED) {
1927                 struct mlx4_ib_steering *ib_steering;
1928
1929                 mutex_lock(&mqp->mutex);
1930                 list_for_each_entry(ib_steering, &mqp->steering_rules, list) {
1931                         if (!memcmp(ib_steering->gid.raw, gid->raw, 16)) {
1932                                 list_del(&ib_steering->list);
1933                                 break;
1934                         }
1935                 }
1936                 mutex_unlock(&mqp->mutex);
1937                 if (&ib_steering->list == &mqp->steering_rules) {
1938                         pr_err("Couldn't find reg_id for mgid. Steering rule is left attached\n");
1939                         return -EINVAL;
1940                 }
1941                 reg_id = ib_steering->reg_id;
1942                 kfree(ib_steering);
1943         }
1944
1945         err = mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw,
1946                                     prot, reg_id.id);
1947         if (err)
1948                 return err;
1949
1950         if (mlx4_is_bonded(dev)) {
1951                 err = mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw,
1952                                             prot, reg_id.mirror);
1953                 if (err)
1954                         return err;
1955         }
1956
1957         mutex_lock(&mqp->mutex);
1958         ge = find_gid_entry(mqp, gid->raw);
1959         if (ge) {
1960                 spin_lock_bh(&mdev->iboe.lock);
1961                 ndev = ge->added ? mdev->iboe.netdevs[ge->port - 1] : NULL;
1962                 dev_hold(ndev);
1963                 spin_unlock_bh(&mdev->iboe.lock);
1964                 dev_put(ndev);
1965                 list_del(&ge->list);
1966                 kfree(ge);
1967         } else
1968                 pr_warn("could not find mgid entry\n");
1969
1970         mutex_unlock(&mqp->mutex);
1971
1972         return 0;
1973 }
1974
1975 static int init_node_data(struct mlx4_ib_dev *dev)
1976 {
1977         struct ib_smp *in_mad;
1978         struct ib_smp *out_mad;
1979         int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
1980         int err = -ENOMEM;
1981
1982         in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
1983         out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
1984         if (!in_mad || !out_mad)
1985                 goto out;
1986
1987         ib_init_query_mad(in_mad);
1988         in_mad->attr_id = IB_SMP_ATTR_NODE_DESC;
1989         if (mlx4_is_master(dev->dev))
1990                 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
1991
1992         err = mlx4_MAD_IFC(dev, mad_ifc_flags, 1, NULL, NULL, in_mad, out_mad);
1993         if (err)
1994                 goto out;
1995
1996         memcpy(dev->ib_dev.node_desc, out_mad->data, IB_DEVICE_NODE_DESC_MAX);
1997
1998         in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
1999
2000         err = mlx4_MAD_IFC(dev, mad_ifc_flags, 1, NULL, NULL, in_mad, out_mad);
2001         if (err)
2002                 goto out;
2003
2004         dev->dev->rev_id = be32_to_cpup((__be32 *) (out_mad->data + 32));
2005         memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8);
2006
2007 out:
2008         kfree(in_mad);
2009         kfree(out_mad);
2010         return err;
2011 }
2012
2013 static ssize_t hca_type_show(struct device *device,
2014                              struct device_attribute *attr, char *buf)
2015 {
2016         struct mlx4_ib_dev *dev =
2017                 rdma_device_to_drv_device(device, struct mlx4_ib_dev, ib_dev);
2018
2019         return sysfs_emit(buf, "MT%d\n", dev->dev->persist->pdev->device);
2020 }
2021 static DEVICE_ATTR_RO(hca_type);
2022
2023 static ssize_t hw_rev_show(struct device *device,
2024                            struct device_attribute *attr, char *buf)
2025 {
2026         struct mlx4_ib_dev *dev =
2027                 rdma_device_to_drv_device(device, struct mlx4_ib_dev, ib_dev);
2028
2029         return sysfs_emit(buf, "%x\n", dev->dev->rev_id);
2030 }
2031 static DEVICE_ATTR_RO(hw_rev);
2032
2033 static ssize_t board_id_show(struct device *device,
2034                              struct device_attribute *attr, char *buf)
2035 {
2036         struct mlx4_ib_dev *dev =
2037                 rdma_device_to_drv_device(device, struct mlx4_ib_dev, ib_dev);
2038
2039         return sysfs_emit(buf, "%.*s\n", MLX4_BOARD_ID_LEN, dev->dev->board_id);
2040 }
2041 static DEVICE_ATTR_RO(board_id);
2042
2043 static struct attribute *mlx4_class_attributes[] = {
2044         &dev_attr_hw_rev.attr,
2045         &dev_attr_hca_type.attr,
2046         &dev_attr_board_id.attr,
2047         NULL
2048 };
2049
2050 static const struct attribute_group mlx4_attr_group = {
2051         .attrs = mlx4_class_attributes,
2052 };
2053
2054 struct diag_counter {
2055         const char *name;
2056         u32 offset;
2057 };
2058
2059 #define DIAG_COUNTER(_name, _offset)                    \
2060         { .name = #_name, .offset = _offset }
2061
2062 static const struct diag_counter diag_basic[] = {
2063         DIAG_COUNTER(rq_num_lle, 0x00),
2064         DIAG_COUNTER(sq_num_lle, 0x04),
2065         DIAG_COUNTER(rq_num_lqpoe, 0x08),
2066         DIAG_COUNTER(sq_num_lqpoe, 0x0C),
2067         DIAG_COUNTER(rq_num_lpe, 0x18),
2068         DIAG_COUNTER(sq_num_lpe, 0x1C),
2069         DIAG_COUNTER(rq_num_wrfe, 0x20),
2070         DIAG_COUNTER(sq_num_wrfe, 0x24),
2071         DIAG_COUNTER(sq_num_mwbe, 0x2C),
2072         DIAG_COUNTER(sq_num_bre, 0x34),
2073         DIAG_COUNTER(sq_num_rire, 0x44),
2074         DIAG_COUNTER(rq_num_rire, 0x48),
2075         DIAG_COUNTER(sq_num_rae, 0x4C),
2076         DIAG_COUNTER(rq_num_rae, 0x50),
2077         DIAG_COUNTER(sq_num_roe, 0x54),
2078         DIAG_COUNTER(sq_num_tree, 0x5C),
2079         DIAG_COUNTER(sq_num_rree, 0x64),
2080         DIAG_COUNTER(rq_num_rnr, 0x68),
2081         DIAG_COUNTER(sq_num_rnr, 0x6C),
2082         DIAG_COUNTER(rq_num_oos, 0x100),
2083         DIAG_COUNTER(sq_num_oos, 0x104),
2084 };
2085
2086 static const struct diag_counter diag_ext[] = {
2087         DIAG_COUNTER(rq_num_dup, 0x130),
2088         DIAG_COUNTER(sq_num_to, 0x134),
2089 };
2090
2091 static const struct diag_counter diag_device_only[] = {
2092         DIAG_COUNTER(num_cqovf, 0x1A0),
2093         DIAG_COUNTER(rq_num_udsdprd, 0x118),
2094 };
2095
2096 static struct rdma_hw_stats *
2097 mlx4_ib_alloc_hw_device_stats(struct ib_device *ibdev)
2098 {
2099         struct mlx4_ib_dev *dev = to_mdev(ibdev);
2100         struct mlx4_ib_diag_counters *diag = dev->diag_counters;
2101
2102         if (!diag[0].descs)
2103                 return NULL;
2104
2105         return rdma_alloc_hw_stats_struct(diag[0].descs, diag[0].num_counters,
2106                                           RDMA_HW_STATS_DEFAULT_LIFESPAN);
2107 }
2108
2109 static struct rdma_hw_stats *
2110 mlx4_ib_alloc_hw_port_stats(struct ib_device *ibdev, u32 port_num)
2111 {
2112         struct mlx4_ib_dev *dev = to_mdev(ibdev);
2113         struct mlx4_ib_diag_counters *diag = dev->diag_counters;
2114
2115         if (!diag[1].descs)
2116                 return NULL;
2117
2118         return rdma_alloc_hw_stats_struct(diag[1].descs, diag[1].num_counters,
2119                                           RDMA_HW_STATS_DEFAULT_LIFESPAN);
2120 }
2121
2122 static int mlx4_ib_get_hw_stats(struct ib_device *ibdev,
2123                                 struct rdma_hw_stats *stats,
2124                                 u32 port, int index)
2125 {
2126         struct mlx4_ib_dev *dev = to_mdev(ibdev);
2127         struct mlx4_ib_diag_counters *diag = dev->diag_counters;
2128         u32 hw_value[ARRAY_SIZE(diag_device_only) +
2129                 ARRAY_SIZE(diag_ext) + ARRAY_SIZE(diag_basic)] = {};
2130         int ret;
2131         int i;
2132
2133         ret = mlx4_query_diag_counters(dev->dev,
2134                                        MLX4_OP_MOD_QUERY_TRANSPORT_CI_ERRORS,
2135                                        diag[!!port].offset, hw_value,
2136                                        diag[!!port].num_counters, port);
2137
2138         if (ret)
2139                 return ret;
2140
2141         for (i = 0; i < diag[!!port].num_counters; i++)
2142                 stats->value[i] = hw_value[i];
2143
2144         return diag[!!port].num_counters;
2145 }
2146
2147 static int __mlx4_ib_alloc_diag_counters(struct mlx4_ib_dev *ibdev,
2148                                          struct rdma_stat_desc **pdescs,
2149                                          u32 **offset, u32 *num, bool port)
2150 {
2151         u32 num_counters;
2152
2153         num_counters = ARRAY_SIZE(diag_basic);
2154
2155         if (ibdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_DIAG_PER_PORT)
2156                 num_counters += ARRAY_SIZE(diag_ext);
2157
2158         if (!port)
2159                 num_counters += ARRAY_SIZE(diag_device_only);
2160
2161         *pdescs = kcalloc(num_counters, sizeof(struct rdma_stat_desc),
2162                           GFP_KERNEL);
2163         if (!*pdescs)
2164                 return -ENOMEM;
2165
2166         *offset = kcalloc(num_counters, sizeof(**offset), GFP_KERNEL);
2167         if (!*offset)
2168                 goto err;
2169
2170         *num = num_counters;
2171
2172         return 0;
2173
2174 err:
2175         kfree(*pdescs);
2176         return -ENOMEM;
2177 }
2178
2179 static void mlx4_ib_fill_diag_counters(struct mlx4_ib_dev *ibdev,
2180                                        struct rdma_stat_desc *descs,
2181                                        u32 *offset, bool port)
2182 {
2183         int i;
2184         int j;
2185
2186         for (i = 0, j = 0; i < ARRAY_SIZE(diag_basic); i++, j++) {
2187                 descs[i].name = diag_basic[i].name;
2188                 offset[i] = diag_basic[i].offset;
2189         }
2190
2191         if (ibdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_DIAG_PER_PORT) {
2192                 for (i = 0; i < ARRAY_SIZE(diag_ext); i++, j++) {
2193                         descs[j].name = diag_ext[i].name;
2194                         offset[j] = diag_ext[i].offset;
2195                 }
2196         }
2197
2198         if (!port) {
2199                 for (i = 0; i < ARRAY_SIZE(diag_device_only); i++, j++) {
2200                         descs[j].name = diag_device_only[i].name;
2201                         offset[j] = diag_device_only[i].offset;
2202                 }
2203         }
2204 }
2205
2206 static const struct ib_device_ops mlx4_ib_hw_stats_ops = {
2207         .alloc_hw_device_stats = mlx4_ib_alloc_hw_device_stats,
2208         .alloc_hw_port_stats = mlx4_ib_alloc_hw_port_stats,
2209         .get_hw_stats = mlx4_ib_get_hw_stats,
2210 };
2211
2212 static const struct ib_device_ops mlx4_ib_hw_stats_ops1 = {
2213         .alloc_hw_device_stats = mlx4_ib_alloc_hw_device_stats,
2214         .get_hw_stats = mlx4_ib_get_hw_stats,
2215 };
2216
2217 static int mlx4_ib_alloc_diag_counters(struct mlx4_ib_dev *ibdev)
2218 {
2219         struct mlx4_ib_diag_counters *diag = ibdev->diag_counters;
2220         int i;
2221         int ret;
2222         bool per_port = !!(ibdev->dev->caps.flags2 &
2223                 MLX4_DEV_CAP_FLAG2_DIAG_PER_PORT);
2224
2225         if (mlx4_is_slave(ibdev->dev))
2226                 return 0;
2227
2228         for (i = 0; i < MLX4_DIAG_COUNTERS_TYPES; i++) {
2229                 /*
2230                  * i == 1 means we are building port counters, set a different
2231                  * stats ops without port stats callback.
2232                  */
2233                 if (i && !per_port) {
2234                         ib_set_device_ops(&ibdev->ib_dev,
2235                                           &mlx4_ib_hw_stats_ops1);
2236
2237                         return 0;
2238                 }
2239
2240                 ret = __mlx4_ib_alloc_diag_counters(ibdev, &diag[i].descs,
2241                                                     &diag[i].offset,
2242                                                     &diag[i].num_counters, i);
2243                 if (ret)
2244                         goto err_alloc;
2245
2246                 mlx4_ib_fill_diag_counters(ibdev, diag[i].descs,
2247                                            diag[i].offset, i);
2248         }
2249
2250         ib_set_device_ops(&ibdev->ib_dev, &mlx4_ib_hw_stats_ops);
2251
2252         return 0;
2253
2254 err_alloc:
2255         if (i) {
2256                 kfree(diag[i - 1].descs);
2257                 kfree(diag[i - 1].offset);
2258         }
2259
2260         return ret;
2261 }
2262
2263 static void mlx4_ib_diag_cleanup(struct mlx4_ib_dev *ibdev)
2264 {
2265         int i;
2266
2267         for (i = 0; i < MLX4_DIAG_COUNTERS_TYPES; i++) {
2268                 kfree(ibdev->diag_counters[i].offset);
2269                 kfree(ibdev->diag_counters[i].descs);
2270         }
2271 }
2272
2273 #define MLX4_IB_INVALID_MAC     ((u64)-1)
2274 static void mlx4_ib_update_qps(struct mlx4_ib_dev *ibdev,
2275                                struct net_device *dev,
2276                                int port)
2277 {
2278         u64 new_smac = 0;
2279         u64 release_mac = MLX4_IB_INVALID_MAC;
2280         struct mlx4_ib_qp *qp;
2281
2282         new_smac = ether_addr_to_u64(dev->dev_addr);
2283         atomic64_set(&ibdev->iboe.mac[port - 1], new_smac);
2284
2285         /* no need for update QP1 and mac registration in non-SRIOV */
2286         if (!mlx4_is_mfunc(ibdev->dev))
2287                 return;
2288
2289         mutex_lock(&ibdev->qp1_proxy_lock[port - 1]);
2290         qp = ibdev->qp1_proxy[port - 1];
2291         if (qp) {
2292                 int new_smac_index;
2293                 u64 old_smac;
2294                 struct mlx4_update_qp_params update_params;
2295
2296                 mutex_lock(&qp->mutex);
2297                 old_smac = qp->pri.smac;
2298                 if (new_smac == old_smac)
2299                         goto unlock;
2300
2301                 new_smac_index = mlx4_register_mac(ibdev->dev, port, new_smac);
2302
2303                 if (new_smac_index < 0)
2304                         goto unlock;
2305
2306                 update_params.smac_index = new_smac_index;
2307                 if (mlx4_update_qp(ibdev->dev, qp->mqp.qpn, MLX4_UPDATE_QP_SMAC,
2308                                    &update_params)) {
2309                         release_mac = new_smac;
2310                         goto unlock;
2311                 }
2312                 /* if old port was zero, no mac was yet registered for this QP */
2313                 if (qp->pri.smac_port)
2314                         release_mac = old_smac;
2315                 qp->pri.smac = new_smac;
2316                 qp->pri.smac_port = port;
2317                 qp->pri.smac_index = new_smac_index;
2318         }
2319
2320 unlock:
2321         if (release_mac != MLX4_IB_INVALID_MAC)
2322                 mlx4_unregister_mac(ibdev->dev, port, release_mac);
2323         if (qp)
2324                 mutex_unlock(&qp->mutex);
2325         mutex_unlock(&ibdev->qp1_proxy_lock[port - 1]);
2326 }
2327
2328 static void mlx4_ib_scan_netdev(struct mlx4_ib_dev *ibdev,
2329                                 struct net_device *dev,
2330                                 unsigned long event)
2331
2332 {
2333         struct mlx4_ib_iboe *iboe = &ibdev->iboe;
2334
2335         ASSERT_RTNL();
2336
2337         if (dev->dev.parent != ibdev->ib_dev.dev.parent)
2338                 return;
2339
2340         spin_lock_bh(&iboe->lock);
2341
2342         iboe->netdevs[dev->dev_port] = event != NETDEV_UNREGISTER ? dev : NULL;
2343
2344         if (event == NETDEV_UP || event == NETDEV_DOWN) {
2345                 enum ib_port_state port_state;
2346                 struct ib_event ibev = { };
2347
2348                 if (ib_get_cached_port_state(&ibdev->ib_dev, dev->dev_port + 1,
2349                                              &port_state))
2350                         goto iboe_out;
2351
2352                 if (event == NETDEV_UP &&
2353                     (port_state != IB_PORT_ACTIVE ||
2354                      iboe->last_port_state[dev->dev_port] != IB_PORT_DOWN))
2355                         goto iboe_out;
2356                 if (event == NETDEV_DOWN &&
2357                     (port_state != IB_PORT_DOWN ||
2358                      iboe->last_port_state[dev->dev_port] != IB_PORT_ACTIVE))
2359                         goto iboe_out;
2360                 iboe->last_port_state[dev->dev_port] = port_state;
2361
2362                 ibev.device = &ibdev->ib_dev;
2363                 ibev.element.port_num = dev->dev_port + 1;
2364                 ibev.event = event == NETDEV_UP ? IB_EVENT_PORT_ACTIVE :
2365                                                   IB_EVENT_PORT_ERR;
2366                 ib_dispatch_event(&ibev);
2367         }
2368
2369 iboe_out:
2370         spin_unlock_bh(&iboe->lock);
2371
2372         if (event == NETDEV_CHANGEADDR || event == NETDEV_REGISTER ||
2373             event == NETDEV_UP || event == NETDEV_CHANGE)
2374                 mlx4_ib_update_qps(ibdev, dev, dev->dev_port + 1);
2375 }
2376
2377 static int mlx4_ib_netdev_event(struct notifier_block *this,
2378                                 unsigned long event, void *ptr)
2379 {
2380         struct net_device *dev = netdev_notifier_info_to_dev(ptr);
2381         struct mlx4_ib_dev *ibdev;
2382
2383         if (!net_eq(dev_net(dev), &init_net))
2384                 return NOTIFY_DONE;
2385
2386         ibdev = container_of(this, struct mlx4_ib_dev, iboe.nb);
2387         mlx4_ib_scan_netdev(ibdev, dev, event);
2388
2389         return NOTIFY_DONE;
2390 }
2391
2392 static void init_pkeys(struct mlx4_ib_dev *ibdev)
2393 {
2394         int port;
2395         int slave;
2396         int i;
2397
2398         if (mlx4_is_master(ibdev->dev)) {
2399                 for (slave = 0; slave <= ibdev->dev->persist->num_vfs;
2400                      ++slave) {
2401                         for (port = 1; port <= ibdev->dev->caps.num_ports; ++port) {
2402                                 for (i = 0;
2403                                      i < ibdev->dev->phys_caps.pkey_phys_table_len[port];
2404                                      ++i) {
2405                                         ibdev->pkeys.virt2phys_pkey[slave][port - 1][i] =
2406                                         /* master has the identity virt2phys pkey mapping */
2407                                                 (slave == mlx4_master_func_num(ibdev->dev) || !i) ? i :
2408                                                         ibdev->dev->phys_caps.pkey_phys_table_len[port] - 1;
2409                                         mlx4_sync_pkey_table(ibdev->dev, slave, port, i,
2410                                                              ibdev->pkeys.virt2phys_pkey[slave][port - 1][i]);
2411                                 }
2412                         }
2413                 }
2414                 /* initialize pkey cache */
2415                 for (port = 1; port <= ibdev->dev->caps.num_ports; ++port) {
2416                         for (i = 0;
2417                              i < ibdev->dev->phys_caps.pkey_phys_table_len[port];
2418                              ++i)
2419                                 ibdev->pkeys.phys_pkey_cache[port-1][i] =
2420                                         (i) ? 0 : 0xFFFF;
2421                 }
2422         }
2423 }
2424
2425 static void mlx4_ib_alloc_eqs(struct mlx4_dev *dev, struct mlx4_ib_dev *ibdev)
2426 {
2427         int i, j, eq = 0, total_eqs = 0;
2428
2429         ibdev->eq_table = kcalloc(dev->caps.num_comp_vectors,
2430                                   sizeof(ibdev->eq_table[0]), GFP_KERNEL);
2431         if (!ibdev->eq_table)
2432                 return;
2433
2434         for (i = 1; i <= dev->caps.num_ports; i++) {
2435                 for (j = 0; j < mlx4_get_eqs_per_port(dev, i);
2436                      j++, total_eqs++) {
2437                         if (i > 1 &&  mlx4_is_eq_shared(dev, total_eqs))
2438                                 continue;
2439                         ibdev->eq_table[eq] = total_eqs;
2440                         if (!mlx4_assign_eq(dev, i,
2441                                             &ibdev->eq_table[eq]))
2442                                 eq++;
2443                         else
2444                                 ibdev->eq_table[eq] = -1;
2445                 }
2446         }
2447
2448         for (i = eq; i < dev->caps.num_comp_vectors;
2449              ibdev->eq_table[i++] = -1)
2450                 ;
2451
2452         /* Advertise the new number of EQs to clients */
2453         ibdev->ib_dev.num_comp_vectors = eq;
2454 }
2455
2456 static void mlx4_ib_free_eqs(struct mlx4_dev *dev, struct mlx4_ib_dev *ibdev)
2457 {
2458         int i;
2459         int total_eqs = ibdev->ib_dev.num_comp_vectors;
2460
2461         /* no eqs were allocated */
2462         if (!ibdev->eq_table)
2463                 return;
2464
2465         /* Reset the advertised EQ number */
2466         ibdev->ib_dev.num_comp_vectors = 0;
2467
2468         for (i = 0; i < total_eqs; i++)
2469                 mlx4_release_eq(dev, ibdev->eq_table[i]);
2470
2471         kfree(ibdev->eq_table);
2472         ibdev->eq_table = NULL;
2473 }
2474
2475 static int mlx4_port_immutable(struct ib_device *ibdev, u32 port_num,
2476                                struct ib_port_immutable *immutable)
2477 {
2478         struct ib_port_attr attr;
2479         struct mlx4_ib_dev *mdev = to_mdev(ibdev);
2480         int err;
2481
2482         if (mlx4_ib_port_link_layer(ibdev, port_num) == IB_LINK_LAYER_INFINIBAND) {
2483                 immutable->core_cap_flags = RDMA_CORE_PORT_IBA_IB;
2484                 immutable->max_mad_size = IB_MGMT_MAD_SIZE;
2485         } else {
2486                 if (mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_IBOE)
2487                         immutable->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE;
2488                 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ROCE_V1_V2)
2489                         immutable->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE |
2490                                 RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP;
2491                 immutable->core_cap_flags |= RDMA_CORE_PORT_RAW_PACKET;
2492                 if (immutable->core_cap_flags & (RDMA_CORE_PORT_IBA_ROCE |
2493                     RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP))
2494                         immutable->max_mad_size = IB_MGMT_MAD_SIZE;
2495         }
2496
2497         err = ib_query_port(ibdev, port_num, &attr);
2498         if (err)
2499                 return err;
2500
2501         immutable->pkey_tbl_len = attr.pkey_tbl_len;
2502         immutable->gid_tbl_len = attr.gid_tbl_len;
2503
2504         return 0;
2505 }
2506
2507 static void get_fw_ver_str(struct ib_device *device, char *str)
2508 {
2509         struct mlx4_ib_dev *dev =
2510                 container_of(device, struct mlx4_ib_dev, ib_dev);
2511         snprintf(str, IB_FW_VERSION_NAME_MAX, "%d.%d.%d",
2512                  (int) (dev->dev->caps.fw_ver >> 32),
2513                  (int) (dev->dev->caps.fw_ver >> 16) & 0xffff,
2514                  (int) dev->dev->caps.fw_ver & 0xffff);
2515 }
2516
2517 static const struct ib_device_ops mlx4_ib_dev_ops = {
2518         .owner = THIS_MODULE,
2519         .driver_id = RDMA_DRIVER_MLX4,
2520         .uverbs_abi_ver = MLX4_IB_UVERBS_ABI_VERSION,
2521
2522         .add_gid = mlx4_ib_add_gid,
2523         .alloc_mr = mlx4_ib_alloc_mr,
2524         .alloc_pd = mlx4_ib_alloc_pd,
2525         .alloc_ucontext = mlx4_ib_alloc_ucontext,
2526         .attach_mcast = mlx4_ib_mcg_attach,
2527         .create_ah = mlx4_ib_create_ah,
2528         .create_cq = mlx4_ib_create_cq,
2529         .create_qp = mlx4_ib_create_qp,
2530         .create_srq = mlx4_ib_create_srq,
2531         .dealloc_pd = mlx4_ib_dealloc_pd,
2532         .dealloc_ucontext = mlx4_ib_dealloc_ucontext,
2533         .del_gid = mlx4_ib_del_gid,
2534         .dereg_mr = mlx4_ib_dereg_mr,
2535         .destroy_ah = mlx4_ib_destroy_ah,
2536         .destroy_cq = mlx4_ib_destroy_cq,
2537         .destroy_qp = mlx4_ib_destroy_qp,
2538         .destroy_srq = mlx4_ib_destroy_srq,
2539         .detach_mcast = mlx4_ib_mcg_detach,
2540         .device_group = &mlx4_attr_group,
2541         .disassociate_ucontext = mlx4_ib_disassociate_ucontext,
2542         .drain_rq = mlx4_ib_drain_rq,
2543         .drain_sq = mlx4_ib_drain_sq,
2544         .get_dev_fw_str = get_fw_ver_str,
2545         .get_dma_mr = mlx4_ib_get_dma_mr,
2546         .get_link_layer = mlx4_ib_port_link_layer,
2547         .get_netdev = mlx4_ib_get_netdev,
2548         .get_port_immutable = mlx4_port_immutable,
2549         .map_mr_sg = mlx4_ib_map_mr_sg,
2550         .mmap = mlx4_ib_mmap,
2551         .modify_cq = mlx4_ib_modify_cq,
2552         .modify_device = mlx4_ib_modify_device,
2553         .modify_port = mlx4_ib_modify_port,
2554         .modify_qp = mlx4_ib_modify_qp,
2555         .modify_srq = mlx4_ib_modify_srq,
2556         .poll_cq = mlx4_ib_poll_cq,
2557         .post_recv = mlx4_ib_post_recv,
2558         .post_send = mlx4_ib_post_send,
2559         .post_srq_recv = mlx4_ib_post_srq_recv,
2560         .process_mad = mlx4_ib_process_mad,
2561         .query_ah = mlx4_ib_query_ah,
2562         .query_device = mlx4_ib_query_device,
2563         .query_gid = mlx4_ib_query_gid,
2564         .query_pkey = mlx4_ib_query_pkey,
2565         .query_port = mlx4_ib_query_port,
2566         .query_qp = mlx4_ib_query_qp,
2567         .query_srq = mlx4_ib_query_srq,
2568         .reg_user_mr = mlx4_ib_reg_user_mr,
2569         .req_notify_cq = mlx4_ib_arm_cq,
2570         .rereg_user_mr = mlx4_ib_rereg_user_mr,
2571         .resize_cq = mlx4_ib_resize_cq,
2572
2573         INIT_RDMA_OBJ_SIZE(ib_ah, mlx4_ib_ah, ibah),
2574         INIT_RDMA_OBJ_SIZE(ib_cq, mlx4_ib_cq, ibcq),
2575         INIT_RDMA_OBJ_SIZE(ib_pd, mlx4_ib_pd, ibpd),
2576         INIT_RDMA_OBJ_SIZE(ib_qp, mlx4_ib_qp, ibqp),
2577         INIT_RDMA_OBJ_SIZE(ib_srq, mlx4_ib_srq, ibsrq),
2578         INIT_RDMA_OBJ_SIZE(ib_ucontext, mlx4_ib_ucontext, ibucontext),
2579 };
2580
2581 static const struct ib_device_ops mlx4_ib_dev_wq_ops = {
2582         .create_rwq_ind_table = mlx4_ib_create_rwq_ind_table,
2583         .create_wq = mlx4_ib_create_wq,
2584         .destroy_rwq_ind_table = mlx4_ib_destroy_rwq_ind_table,
2585         .destroy_wq = mlx4_ib_destroy_wq,
2586         .modify_wq = mlx4_ib_modify_wq,
2587
2588         INIT_RDMA_OBJ_SIZE(ib_rwq_ind_table, mlx4_ib_rwq_ind_table,
2589                            ib_rwq_ind_tbl),
2590 };
2591
2592 static const struct ib_device_ops mlx4_ib_dev_mw_ops = {
2593         .alloc_mw = mlx4_ib_alloc_mw,
2594         .dealloc_mw = mlx4_ib_dealloc_mw,
2595
2596         INIT_RDMA_OBJ_SIZE(ib_mw, mlx4_ib_mw, ibmw),
2597 };
2598
2599 static const struct ib_device_ops mlx4_ib_dev_xrc_ops = {
2600         .alloc_xrcd = mlx4_ib_alloc_xrcd,
2601         .dealloc_xrcd = mlx4_ib_dealloc_xrcd,
2602
2603         INIT_RDMA_OBJ_SIZE(ib_xrcd, mlx4_ib_xrcd, ibxrcd),
2604 };
2605
2606 static const struct ib_device_ops mlx4_ib_dev_fs_ops = {
2607         .create_flow = mlx4_ib_create_flow,
2608         .destroy_flow = mlx4_ib_destroy_flow,
2609 };
2610
2611 static int mlx4_ib_probe(struct auxiliary_device *adev,
2612                          const struct auxiliary_device_id *id)
2613 {
2614         struct mlx4_adev *madev = container_of(adev, struct mlx4_adev, adev);
2615         struct mlx4_dev *dev = madev->mdev;
2616         struct mlx4_ib_dev *ibdev;
2617         int num_ports = 0;
2618         int i, j;
2619         int err;
2620         struct mlx4_ib_iboe *iboe;
2621         int ib_num_ports = 0;
2622         int num_req_counters;
2623         int allocated;
2624         u32 counter_index;
2625         struct counter_index *new_counter_index;
2626
2627         pr_info_once("%s", mlx4_ib_version);
2628
2629         num_ports = 0;
2630         mlx4_foreach_ib_transport_port(i, dev)
2631                 num_ports++;
2632
2633         /* No point in registering a device with no ports... */
2634         if (num_ports == 0)
2635                 return -ENODEV;
2636
2637         ibdev = ib_alloc_device(mlx4_ib_dev, ib_dev);
2638         if (!ibdev) {
2639                 dev_err(&dev->persist->pdev->dev,
2640                         "Device struct alloc failed\n");
2641                 return -ENOMEM;
2642         }
2643
2644         iboe = &ibdev->iboe;
2645
2646         err = mlx4_pd_alloc(dev, &ibdev->priv_pdn);
2647         if (err)
2648                 goto err_dealloc;
2649
2650         err = mlx4_uar_alloc(dev, &ibdev->priv_uar);
2651         if (err)
2652                 goto err_pd;
2653
2654         ibdev->uar_map = ioremap((phys_addr_t) ibdev->priv_uar.pfn << PAGE_SHIFT,
2655                                  PAGE_SIZE);
2656         if (!ibdev->uar_map) {
2657                 err = -ENOMEM;
2658                 goto err_uar;
2659         }
2660         MLX4_INIT_DOORBELL_LOCK(&ibdev->uar_lock);
2661
2662         ibdev->dev = dev;
2663         ibdev->bond_next_port   = 0;
2664
2665         ibdev->ib_dev.node_type         = RDMA_NODE_IB_CA;
2666         ibdev->ib_dev.local_dma_lkey    = dev->caps.reserved_lkey;
2667         ibdev->num_ports                = num_ports;
2668         ibdev->ib_dev.phys_port_cnt     = mlx4_is_bonded(dev) ?
2669                                                 1 : ibdev->num_ports;
2670         ibdev->ib_dev.num_comp_vectors  = dev->caps.num_comp_vectors;
2671         ibdev->ib_dev.dev.parent        = &dev->persist->pdev->dev;
2672
2673         ib_set_device_ops(&ibdev->ib_dev, &mlx4_ib_dev_ops);
2674
2675         if ((dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS) &&
2676             ((mlx4_ib_port_link_layer(&ibdev->ib_dev, 1) ==
2677             IB_LINK_LAYER_ETHERNET) ||
2678             (mlx4_ib_port_link_layer(&ibdev->ib_dev, 2) ==
2679             IB_LINK_LAYER_ETHERNET)))
2680                 ib_set_device_ops(&ibdev->ib_dev, &mlx4_ib_dev_wq_ops);
2681
2682         if (dev->caps.flags & MLX4_DEV_CAP_FLAG_MEM_WINDOW ||
2683             dev->caps.bmme_flags & MLX4_BMME_FLAG_TYPE_2_WIN)
2684                 ib_set_device_ops(&ibdev->ib_dev, &mlx4_ib_dev_mw_ops);
2685
2686         if (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) {
2687                 ib_set_device_ops(&ibdev->ib_dev, &mlx4_ib_dev_xrc_ops);
2688         }
2689
2690         if (check_flow_steering_support(dev)) {
2691                 ibdev->steering_support = MLX4_STEERING_MODE_DEVICE_MANAGED;
2692                 ib_set_device_ops(&ibdev->ib_dev, &mlx4_ib_dev_fs_ops);
2693         }
2694
2695         if (!dev->caps.userspace_caps)
2696                 ibdev->ib_dev.ops.uverbs_abi_ver =
2697                         MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION;
2698
2699         mlx4_ib_alloc_eqs(dev, ibdev);
2700
2701         spin_lock_init(&iboe->lock);
2702
2703         err = init_node_data(ibdev);
2704         if (err)
2705                 goto err_map;
2706         mlx4_init_sl2vl_tbl(ibdev);
2707
2708         for (i = 0; i < ibdev->num_ports; ++i) {
2709                 mutex_init(&ibdev->counters_table[i].mutex);
2710                 INIT_LIST_HEAD(&ibdev->counters_table[i].counters_list);
2711                 iboe->last_port_state[i] = IB_PORT_DOWN;
2712         }
2713
2714         num_req_counters = mlx4_is_bonded(dev) ? 1 : ibdev->num_ports;
2715         for (i = 0; i < num_req_counters; ++i) {
2716                 mutex_init(&ibdev->qp1_proxy_lock[i]);
2717                 allocated = 0;
2718                 if (mlx4_ib_port_link_layer(&ibdev->ib_dev, i + 1) ==
2719                                                 IB_LINK_LAYER_ETHERNET) {
2720                         err = mlx4_counter_alloc(ibdev->dev, &counter_index,
2721                                                  MLX4_RES_USAGE_DRIVER);
2722                         /* if failed to allocate a new counter, use default */
2723                         if (err)
2724                                 counter_index =
2725                                         mlx4_get_default_counter_index(dev,
2726                                                                        i + 1);
2727                         else
2728                                 allocated = 1;
2729                 } else { /* IB_LINK_LAYER_INFINIBAND use the default counter */
2730                         counter_index = mlx4_get_default_counter_index(dev,
2731                                                                        i + 1);
2732                 }
2733                 new_counter_index = kmalloc(sizeof(*new_counter_index),
2734                                             GFP_KERNEL);
2735                 if (!new_counter_index) {
2736                         err = -ENOMEM;
2737                         if (allocated)
2738                                 mlx4_counter_free(ibdev->dev, counter_index);
2739                         goto err_counter;
2740                 }
2741                 new_counter_index->index = counter_index;
2742                 new_counter_index->allocated = allocated;
2743                 list_add_tail(&new_counter_index->list,
2744                               &ibdev->counters_table[i].counters_list);
2745                 ibdev->counters_table[i].default_counter = counter_index;
2746                 pr_info("counter index %d for port %d allocated %d\n",
2747                         counter_index, i + 1, allocated);
2748         }
2749         if (mlx4_is_bonded(dev))
2750                 for (i = 1; i < ibdev->num_ports ; ++i) {
2751                         new_counter_index =
2752                                         kmalloc(sizeof(struct counter_index),
2753                                                 GFP_KERNEL);
2754                         if (!new_counter_index) {
2755                                 err = -ENOMEM;
2756                                 goto err_counter;
2757                         }
2758                         new_counter_index->index = counter_index;
2759                         new_counter_index->allocated = 0;
2760                         list_add_tail(&new_counter_index->list,
2761                                       &ibdev->counters_table[i].counters_list);
2762                         ibdev->counters_table[i].default_counter =
2763                                                                 counter_index;
2764                 }
2765
2766         mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB)
2767                 ib_num_ports++;
2768
2769         spin_lock_init(&ibdev->sm_lock);
2770         mutex_init(&ibdev->cap_mask_mutex);
2771         INIT_LIST_HEAD(&ibdev->qp_list);
2772         spin_lock_init(&ibdev->reset_flow_resource_lock);
2773
2774         if (ibdev->steering_support == MLX4_STEERING_MODE_DEVICE_MANAGED &&
2775             ib_num_ports) {
2776                 ibdev->steer_qpn_count = MLX4_IB_UC_MAX_NUM_QPS;
2777                 err = mlx4_qp_reserve_range(dev, ibdev->steer_qpn_count,
2778                                             MLX4_IB_UC_STEER_QPN_ALIGN,
2779                                             &ibdev->steer_qpn_base, 0,
2780                                             MLX4_RES_USAGE_DRIVER);
2781                 if (err)
2782                         goto err_counter;
2783
2784                 ibdev->ib_uc_qpns_bitmap = bitmap_alloc(ibdev->steer_qpn_count,
2785                                                         GFP_KERNEL);
2786                 if (!ibdev->ib_uc_qpns_bitmap) {
2787                         err = -ENOMEM;
2788                         goto err_steer_qp_release;
2789                 }
2790
2791                 if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_DMFS_IPOIB) {
2792                         bitmap_zero(ibdev->ib_uc_qpns_bitmap,
2793                                     ibdev->steer_qpn_count);
2794                         err = mlx4_FLOW_STEERING_IB_UC_QP_RANGE(
2795                                         dev, ibdev->steer_qpn_base,
2796                                         ibdev->steer_qpn_base +
2797                                         ibdev->steer_qpn_count - 1);
2798                         if (err)
2799                                 goto err_steer_free_bitmap;
2800                 } else {
2801                         bitmap_fill(ibdev->ib_uc_qpns_bitmap,
2802                                     ibdev->steer_qpn_count);
2803                 }
2804         }
2805
2806         for (j = 1; j <= ibdev->dev->caps.num_ports; j++)
2807                 atomic64_set(&iboe->mac[j - 1], ibdev->dev->caps.def_mac[j]);
2808
2809         err = mlx4_ib_alloc_diag_counters(ibdev);
2810         if (err)
2811                 goto err_steer_free_bitmap;
2812
2813         err = ib_register_device(&ibdev->ib_dev, "mlx4_%d",
2814                                  &dev->persist->pdev->dev);
2815         if (err)
2816                 goto err_diag_counters;
2817
2818         err = mlx4_ib_mad_init(ibdev);
2819         if (err)
2820                 goto err_reg;
2821
2822         err = mlx4_ib_init_sriov(ibdev);
2823         if (err)
2824                 goto err_mad;
2825
2826         if (!iboe->nb.notifier_call) {
2827                 iboe->nb.notifier_call = mlx4_ib_netdev_event;
2828                 err = register_netdevice_notifier(&iboe->nb);
2829                 if (err) {
2830                         iboe->nb.notifier_call = NULL;
2831                         goto err_notif;
2832                 }
2833         }
2834         if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ROCE_V1_V2) {
2835                 err = mlx4_config_roce_v2_port(dev, ROCE_V2_UDP_DPORT);
2836                 if (err)
2837                         goto err_notif;
2838         }
2839
2840         ibdev->ib_active = true;
2841         mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB)
2842                 devlink_port_type_ib_set(mlx4_get_devlink_port(dev, i),
2843                                          &ibdev->ib_dev);
2844
2845         if (mlx4_is_mfunc(ibdev->dev))
2846                 init_pkeys(ibdev);
2847
2848         /* create paravirt contexts for any VFs which are active */
2849         if (mlx4_is_master(ibdev->dev)) {
2850                 for (j = 0; j < MLX4_MFUNC_MAX; j++) {
2851                         if (j == mlx4_master_func_num(ibdev->dev))
2852                                 continue;
2853                         if (mlx4_is_slave_active(ibdev->dev, j))
2854                                 do_slave_init(ibdev, j, 1);
2855                 }
2856         }
2857
2858         /* register mlx4 core notifier */
2859         ibdev->mlx_nb.notifier_call = mlx4_ib_event;
2860         err = mlx4_register_event_notifier(dev, &ibdev->mlx_nb);
2861         WARN(err, "failed to register mlx4 event notifier (%d)", err);
2862
2863         auxiliary_set_drvdata(adev, ibdev);
2864         return 0;
2865
2866 err_notif:
2867         if (ibdev->iboe.nb.notifier_call) {
2868                 if (unregister_netdevice_notifier(&ibdev->iboe.nb))
2869                         pr_warn("failure unregistering notifier\n");
2870                 ibdev->iboe.nb.notifier_call = NULL;
2871         }
2872         flush_workqueue(wq);
2873
2874         mlx4_ib_close_sriov(ibdev);
2875
2876 err_mad:
2877         mlx4_ib_mad_cleanup(ibdev);
2878
2879 err_reg:
2880         ib_unregister_device(&ibdev->ib_dev);
2881
2882 err_diag_counters:
2883         mlx4_ib_diag_cleanup(ibdev);
2884
2885 err_steer_free_bitmap:
2886         bitmap_free(ibdev->ib_uc_qpns_bitmap);
2887
2888 err_steer_qp_release:
2889         mlx4_qp_release_range(dev, ibdev->steer_qpn_base,
2890                               ibdev->steer_qpn_count);
2891 err_counter:
2892         for (i = 0; i < ibdev->num_ports; ++i)
2893                 mlx4_ib_delete_counters_table(ibdev, &ibdev->counters_table[i]);
2894
2895 err_map:
2896         mlx4_ib_free_eqs(dev, ibdev);
2897         iounmap(ibdev->uar_map);
2898
2899 err_uar:
2900         mlx4_uar_free(dev, &ibdev->priv_uar);
2901
2902 err_pd:
2903         mlx4_pd_free(dev, ibdev->priv_pdn);
2904
2905 err_dealloc:
2906         ib_dealloc_device(&ibdev->ib_dev);
2907
2908         return err;
2909 }
2910
2911 int mlx4_ib_steer_qp_alloc(struct mlx4_ib_dev *dev, int count, int *qpn)
2912 {
2913         int offset;
2914
2915         WARN_ON(!dev->ib_uc_qpns_bitmap);
2916
2917         offset = bitmap_find_free_region(dev->ib_uc_qpns_bitmap,
2918                                          dev->steer_qpn_count,
2919                                          get_count_order(count));
2920         if (offset < 0)
2921                 return offset;
2922
2923         *qpn = dev->steer_qpn_base + offset;
2924         return 0;
2925 }
2926
2927 void mlx4_ib_steer_qp_free(struct mlx4_ib_dev *dev, u32 qpn, int count)
2928 {
2929         if (!qpn ||
2930             dev->steering_support != MLX4_STEERING_MODE_DEVICE_MANAGED)
2931                 return;
2932
2933         if (WARN(qpn < dev->steer_qpn_base, "qpn = %u, steer_qpn_base = %u\n",
2934                  qpn, dev->steer_qpn_base))
2935                 /* not supposed to be here */
2936                 return;
2937
2938         bitmap_release_region(dev->ib_uc_qpns_bitmap,
2939                               qpn - dev->steer_qpn_base,
2940                               get_count_order(count));
2941 }
2942
2943 int mlx4_ib_steer_qp_reg(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
2944                          int is_attach)
2945 {
2946         int err;
2947         size_t flow_size;
2948         struct ib_flow_attr *flow;
2949         struct ib_flow_spec_ib *ib_spec;
2950
2951         if (is_attach) {
2952                 flow_size = sizeof(struct ib_flow_attr) +
2953                             sizeof(struct ib_flow_spec_ib);
2954                 flow = kzalloc(flow_size, GFP_KERNEL);
2955                 if (!flow)
2956                         return -ENOMEM;
2957                 flow->port = mqp->port;
2958                 flow->num_of_specs = 1;
2959                 flow->size = flow_size;
2960                 ib_spec = (struct ib_flow_spec_ib *)(flow + 1);
2961                 ib_spec->type = IB_FLOW_SPEC_IB;
2962                 ib_spec->size = sizeof(struct ib_flow_spec_ib);
2963                 /* Add an empty rule for IB L2 */
2964                 memset(&ib_spec->mask, 0, sizeof(ib_spec->mask));
2965
2966                 err = __mlx4_ib_create_flow(&mqp->ibqp, flow, MLX4_DOMAIN_NIC,
2967                                             MLX4_FS_REGULAR, &mqp->reg_id);
2968                 kfree(flow);
2969                 return err;
2970         }
2971
2972         return __mlx4_ib_destroy_flow(mdev->dev, mqp->reg_id);
2973 }
2974
2975 static void mlx4_ib_remove(struct auxiliary_device *adev)
2976 {
2977         struct mlx4_adev *madev = container_of(adev, struct mlx4_adev, adev);
2978         struct mlx4_dev *dev = madev->mdev;
2979         struct mlx4_ib_dev *ibdev = auxiliary_get_drvdata(adev);
2980         int p;
2981         int i;
2982
2983         mlx4_unregister_event_notifier(dev, &ibdev->mlx_nb);
2984
2985         mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB)
2986                 devlink_port_type_clear(mlx4_get_devlink_port(dev, i));
2987         ibdev->ib_active = false;
2988         flush_workqueue(wq);
2989
2990         if (ibdev->iboe.nb.notifier_call) {
2991                 if (unregister_netdevice_notifier(&ibdev->iboe.nb))
2992                         pr_warn("failure unregistering notifier\n");
2993                 ibdev->iboe.nb.notifier_call = NULL;
2994         }
2995
2996         mlx4_ib_close_sriov(ibdev);
2997         mlx4_ib_mad_cleanup(ibdev);
2998         ib_unregister_device(&ibdev->ib_dev);
2999         mlx4_ib_diag_cleanup(ibdev);
3000
3001         mlx4_qp_release_range(dev, ibdev->steer_qpn_base,
3002                               ibdev->steer_qpn_count);
3003         bitmap_free(ibdev->ib_uc_qpns_bitmap);
3004
3005         iounmap(ibdev->uar_map);
3006         for (p = 0; p < ibdev->num_ports; ++p)
3007                 mlx4_ib_delete_counters_table(ibdev, &ibdev->counters_table[p]);
3008
3009         mlx4_foreach_port(p, dev, MLX4_PORT_TYPE_IB)
3010                 mlx4_CLOSE_PORT(dev, p);
3011
3012         mlx4_ib_free_eqs(dev, ibdev);
3013
3014         mlx4_uar_free(dev, &ibdev->priv_uar);
3015         mlx4_pd_free(dev, ibdev->priv_pdn);
3016         ib_dealloc_device(&ibdev->ib_dev);
3017 }
3018
3019 static void do_slave_init(struct mlx4_ib_dev *ibdev, int slave, int do_init)
3020 {
3021         struct mlx4_ib_demux_work **dm;
3022         struct mlx4_dev *dev = ibdev->dev;
3023         int i;
3024         unsigned long flags;
3025         struct mlx4_active_ports actv_ports;
3026         unsigned int ports;
3027         unsigned int first_port;
3028
3029         if (!mlx4_is_master(dev))
3030                 return;
3031
3032         actv_ports = mlx4_get_active_ports(dev, slave);
3033         ports = bitmap_weight(actv_ports.ports, dev->caps.num_ports);
3034         first_port = find_first_bit(actv_ports.ports, dev->caps.num_ports);
3035
3036         dm = kcalloc(ports, sizeof(*dm), GFP_ATOMIC);
3037         if (!dm)
3038                 return;
3039
3040         for (i = 0; i < ports; i++) {
3041                 dm[i] = kmalloc(sizeof (struct mlx4_ib_demux_work), GFP_ATOMIC);
3042                 if (!dm[i]) {
3043                         while (--i >= 0)
3044                                 kfree(dm[i]);
3045                         goto out;
3046                 }
3047                 INIT_WORK(&dm[i]->work, mlx4_ib_tunnels_update_work);
3048                 dm[i]->port = first_port + i + 1;
3049                 dm[i]->slave = slave;
3050                 dm[i]->do_init = do_init;
3051                 dm[i]->dev = ibdev;
3052         }
3053         /* initialize or tear down tunnel QPs for the slave */
3054         spin_lock_irqsave(&ibdev->sriov.going_down_lock, flags);
3055         if (!ibdev->sriov.is_going_down) {
3056                 for (i = 0; i < ports; i++)
3057                         queue_work(ibdev->sriov.demux[i].ud_wq, &dm[i]->work);
3058                 spin_unlock_irqrestore(&ibdev->sriov.going_down_lock, flags);
3059         } else {
3060                 spin_unlock_irqrestore(&ibdev->sriov.going_down_lock, flags);
3061                 for (i = 0; i < ports; i++)
3062                         kfree(dm[i]);
3063         }
3064 out:
3065         kfree(dm);
3066         return;
3067 }
3068
3069 static void mlx4_ib_handle_catas_error(struct mlx4_ib_dev *ibdev)
3070 {
3071         struct mlx4_ib_qp *mqp;
3072         unsigned long flags_qp;
3073         unsigned long flags_cq;
3074         struct mlx4_ib_cq *send_mcq, *recv_mcq;
3075         struct list_head    cq_notify_list;
3076         struct mlx4_cq *mcq;
3077         unsigned long flags;
3078
3079         pr_warn("mlx4_ib_handle_catas_error was started\n");
3080         INIT_LIST_HEAD(&cq_notify_list);
3081
3082         /* Go over qp list reside on that ibdev, sync with create/destroy qp.*/
3083         spin_lock_irqsave(&ibdev->reset_flow_resource_lock, flags);
3084
3085         list_for_each_entry(mqp, &ibdev->qp_list, qps_list) {
3086                 spin_lock_irqsave(&mqp->sq.lock, flags_qp);
3087                 if (mqp->sq.tail != mqp->sq.head) {
3088                         send_mcq = to_mcq(mqp->ibqp.send_cq);
3089                         spin_lock_irqsave(&send_mcq->lock, flags_cq);
3090                         if (send_mcq->mcq.comp &&
3091                             mqp->ibqp.send_cq->comp_handler) {
3092                                 if (!send_mcq->mcq.reset_notify_added) {
3093                                         send_mcq->mcq.reset_notify_added = 1;
3094                                         list_add_tail(&send_mcq->mcq.reset_notify,
3095                                                       &cq_notify_list);
3096                                 }
3097                         }
3098                         spin_unlock_irqrestore(&send_mcq->lock, flags_cq);
3099                 }
3100                 spin_unlock_irqrestore(&mqp->sq.lock, flags_qp);
3101                 /* Now, handle the QP's receive queue */
3102                 spin_lock_irqsave(&mqp->rq.lock, flags_qp);
3103                 /* no handling is needed for SRQ */
3104                 if (!mqp->ibqp.srq) {
3105                         if (mqp->rq.tail != mqp->rq.head) {
3106                                 recv_mcq = to_mcq(mqp->ibqp.recv_cq);
3107                                 spin_lock_irqsave(&recv_mcq->lock, flags_cq);
3108                                 if (recv_mcq->mcq.comp &&
3109                                     mqp->ibqp.recv_cq->comp_handler) {
3110                                         if (!recv_mcq->mcq.reset_notify_added) {
3111                                                 recv_mcq->mcq.reset_notify_added = 1;
3112                                                 list_add_tail(&recv_mcq->mcq.reset_notify,
3113                                                               &cq_notify_list);
3114                                         }
3115                                 }
3116                                 spin_unlock_irqrestore(&recv_mcq->lock,
3117                                                        flags_cq);
3118                         }
3119                 }
3120                 spin_unlock_irqrestore(&mqp->rq.lock, flags_qp);
3121         }
3122
3123         list_for_each_entry(mcq, &cq_notify_list, reset_notify) {
3124                 mcq->comp(mcq);
3125         }
3126         spin_unlock_irqrestore(&ibdev->reset_flow_resource_lock, flags);
3127         pr_warn("mlx4_ib_handle_catas_error ended\n");
3128 }
3129
3130 static void handle_bonded_port_state_event(struct work_struct *work)
3131 {
3132         struct ib_event_work *ew =
3133                 container_of(work, struct ib_event_work, work);
3134         struct mlx4_ib_dev *ibdev = ew->ib_dev;
3135         enum ib_port_state bonded_port_state = IB_PORT_NOP;
3136         int i;
3137         struct ib_event ibev;
3138
3139         kfree(ew);
3140         spin_lock_bh(&ibdev->iboe.lock);
3141         for (i = 0; i < MLX4_MAX_PORTS; ++i) {
3142                 struct net_device *curr_netdev = ibdev->iboe.netdevs[i];
3143                 enum ib_port_state curr_port_state;
3144
3145                 if (!curr_netdev)
3146                         continue;
3147
3148                 curr_port_state =
3149                         (netif_running(curr_netdev) &&
3150                          netif_carrier_ok(curr_netdev)) ?
3151                         IB_PORT_ACTIVE : IB_PORT_DOWN;
3152
3153                 bonded_port_state = (bonded_port_state != IB_PORT_ACTIVE) ?
3154                         curr_port_state : IB_PORT_ACTIVE;
3155         }
3156         spin_unlock_bh(&ibdev->iboe.lock);
3157
3158         ibev.device = &ibdev->ib_dev;
3159         ibev.element.port_num = 1;
3160         ibev.event = (bonded_port_state == IB_PORT_ACTIVE) ?
3161                 IB_EVENT_PORT_ACTIVE : IB_EVENT_PORT_ERR;
3162
3163         ib_dispatch_event(&ibev);
3164 }
3165
3166 void mlx4_ib_sl2vl_update(struct mlx4_ib_dev *mdev, int port)
3167 {
3168         u64 sl2vl;
3169         int err;
3170
3171         err = mlx4_ib_query_sl2vl(&mdev->ib_dev, port, &sl2vl);
3172         if (err) {
3173                 pr_err("Unable to get current sl to vl mapping for port %d.  Using all zeroes (%d)\n",
3174                        port, err);
3175                 sl2vl = 0;
3176         }
3177         atomic64_set(&mdev->sl2vl[port - 1], sl2vl);
3178 }
3179
3180 static void ib_sl2vl_update_work(struct work_struct *work)
3181 {
3182         struct ib_event_work *ew = container_of(work, struct ib_event_work, work);
3183         struct mlx4_ib_dev *mdev = ew->ib_dev;
3184         int port = ew->port;
3185
3186         mlx4_ib_sl2vl_update(mdev, port);
3187
3188         kfree(ew);
3189 }
3190
3191 void mlx4_sched_ib_sl2vl_update_work(struct mlx4_ib_dev *ibdev,
3192                                      int port)
3193 {
3194         struct ib_event_work *ew;
3195
3196         ew = kmalloc(sizeof(*ew), GFP_ATOMIC);
3197         if (ew) {
3198                 INIT_WORK(&ew->work, ib_sl2vl_update_work);
3199                 ew->port = port;
3200                 ew->ib_dev = ibdev;
3201                 queue_work(wq, &ew->work);
3202         }
3203 }
3204
3205 static int mlx4_ib_event(struct notifier_block *this, unsigned long event,
3206                          void *param)
3207 {
3208         struct mlx4_ib_dev *ibdev =
3209                 container_of(this, struct mlx4_ib_dev, mlx_nb);
3210         struct mlx4_dev *dev = ibdev->dev;
3211         struct ib_event ibev;
3212         struct mlx4_eqe *eqe = NULL;
3213         struct ib_event_work *ew;
3214         int p = 0;
3215
3216         if (mlx4_is_bonded(dev) &&
3217             ((event == MLX4_DEV_EVENT_PORT_UP) ||
3218             (event == MLX4_DEV_EVENT_PORT_DOWN))) {
3219                 ew = kmalloc(sizeof(*ew), GFP_ATOMIC);
3220                 if (!ew)
3221                         return NOTIFY_DONE;
3222                 INIT_WORK(&ew->work, handle_bonded_port_state_event);
3223                 ew->ib_dev = ibdev;
3224                 queue_work(wq, &ew->work);
3225                 return NOTIFY_DONE;
3226         }
3227
3228         switch (event) {
3229         case MLX4_DEV_EVENT_CATASTROPHIC_ERROR:
3230                 break;
3231         case MLX4_DEV_EVENT_PORT_MGMT_CHANGE:
3232                 eqe = (struct mlx4_eqe *)param;
3233                 break;
3234         default:
3235                 p = *(int *)param;
3236                 break;
3237         }
3238
3239         switch (event) {
3240         case MLX4_DEV_EVENT_PORT_UP:
3241                 if (p > ibdev->num_ports)
3242                         return NOTIFY_DONE;
3243                 if (!mlx4_is_slave(dev) &&
3244                     rdma_port_get_link_layer(&ibdev->ib_dev, p) ==
3245                         IB_LINK_LAYER_INFINIBAND) {
3246                         if (mlx4_is_master(dev))
3247                                 mlx4_ib_invalidate_all_guid_record(ibdev, p);
3248                         if (ibdev->dev->flags & MLX4_FLAG_SECURE_HOST &&
3249                             !(ibdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SL_TO_VL_CHANGE_EVENT))
3250                                 mlx4_sched_ib_sl2vl_update_work(ibdev, p);
3251                 }
3252                 ibev.event = IB_EVENT_PORT_ACTIVE;
3253                 break;
3254
3255         case MLX4_DEV_EVENT_PORT_DOWN:
3256                 if (p > ibdev->num_ports)
3257                         return NOTIFY_DONE;
3258                 ibev.event = IB_EVENT_PORT_ERR;
3259                 break;
3260
3261         case MLX4_DEV_EVENT_CATASTROPHIC_ERROR:
3262                 ibdev->ib_active = false;
3263                 ibev.event = IB_EVENT_DEVICE_FATAL;
3264                 mlx4_ib_handle_catas_error(ibdev);
3265                 break;
3266
3267         case MLX4_DEV_EVENT_PORT_MGMT_CHANGE:
3268                 ew = kmalloc(sizeof *ew, GFP_ATOMIC);
3269                 if (!ew)
3270                         return NOTIFY_DONE;
3271
3272                 INIT_WORK(&ew->work, handle_port_mgmt_change_event);
3273                 memcpy(&ew->ib_eqe, eqe, sizeof *eqe);
3274                 ew->ib_dev = ibdev;
3275                 /* need to queue only for port owner, which uses GEN_EQE */
3276                 if (mlx4_is_master(dev))
3277                         queue_work(wq, &ew->work);
3278                 else
3279                         handle_port_mgmt_change_event(&ew->work);
3280                 return NOTIFY_DONE;
3281
3282         case MLX4_DEV_EVENT_SLAVE_INIT:
3283                 /* here, p is the slave id */
3284                 do_slave_init(ibdev, p, 1);
3285                 if (mlx4_is_master(dev)) {
3286                         int i;
3287
3288                         for (i = 1; i <= ibdev->num_ports; i++) {
3289                                 if (rdma_port_get_link_layer(&ibdev->ib_dev, i)
3290                                         == IB_LINK_LAYER_INFINIBAND)
3291                                         mlx4_ib_slave_alias_guid_event(ibdev,
3292                                                                        p, i,
3293                                                                        1);
3294                         }
3295                 }
3296                 return NOTIFY_DONE;
3297
3298         case MLX4_DEV_EVENT_SLAVE_SHUTDOWN:
3299                 if (mlx4_is_master(dev)) {
3300                         int i;
3301
3302                         for (i = 1; i <= ibdev->num_ports; i++) {
3303                                 if (rdma_port_get_link_layer(&ibdev->ib_dev, i)
3304                                         == IB_LINK_LAYER_INFINIBAND)
3305                                         mlx4_ib_slave_alias_guid_event(ibdev,
3306                                                                        p, i,
3307                                                                        0);
3308                         }
3309                 }
3310                 /* here, p is the slave id */
3311                 do_slave_init(ibdev, p, 0);
3312                 return NOTIFY_DONE;
3313
3314         default:
3315                 return NOTIFY_DONE;
3316         }
3317
3318         ibev.device           = &ibdev->ib_dev;
3319         ibev.element.port_num = mlx4_is_bonded(ibdev->dev) ? 1 : (u8)p;
3320
3321         ib_dispatch_event(&ibev);
3322         return NOTIFY_DONE;
3323 }
3324
3325 static const struct auxiliary_device_id mlx4_ib_id_table[] = {
3326         { .name = MLX4_ADEV_NAME ".ib" },
3327         {},
3328 };
3329
3330 MODULE_DEVICE_TABLE(auxiliary, mlx4_ib_id_table);
3331
3332 static struct mlx4_adrv mlx4_ib_adrv = {
3333         .adrv = {
3334                 .name   = "ib",
3335                 .probe  = mlx4_ib_probe,
3336                 .remove = mlx4_ib_remove,
3337                 .id_table = mlx4_ib_id_table,
3338         },
3339         .protocol       = MLX4_PROT_IB_IPV6,
3340         .flags          = MLX4_INTFF_BONDING
3341 };
3342
3343 static int __init mlx4_ib_init(void)
3344 {
3345         int err;
3346
3347         wq = alloc_ordered_workqueue("mlx4_ib", WQ_MEM_RECLAIM);
3348         if (!wq)
3349                 return -ENOMEM;
3350
3351         err = mlx4_ib_qp_event_init();
3352         if (err)
3353                 goto clean_qp_event;
3354
3355         err = mlx4_ib_cm_init();
3356         if (err)
3357                 goto clean_wq;
3358
3359         err = mlx4_ib_mcg_init();
3360         if (err)
3361                 goto clean_cm;
3362
3363         err = mlx4_register_auxiliary_driver(&mlx4_ib_adrv);
3364         if (err)
3365                 goto clean_mcg;
3366
3367         return 0;
3368
3369 clean_mcg:
3370         mlx4_ib_mcg_destroy();
3371
3372 clean_cm:
3373         mlx4_ib_cm_destroy();
3374
3375 clean_wq:
3376         mlx4_ib_qp_event_cleanup();
3377
3378 clean_qp_event:
3379         destroy_workqueue(wq);
3380         return err;
3381 }
3382
3383 static void __exit mlx4_ib_cleanup(void)
3384 {
3385         mlx4_unregister_auxiliary_driver(&mlx4_ib_adrv);
3386         mlx4_ib_mcg_destroy();
3387         mlx4_ib_cm_destroy();
3388         mlx4_ib_qp_event_cleanup();
3389         destroy_workqueue(wq);
3390 }
3391
3392 module_init(mlx4_ib_init);
3393 module_exit(mlx4_ib_cleanup);