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