sys/dev/mlx4/mlx4_ib/mlx4_ib_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 #define LINUXKPI_PARAM_PREFIX mlx4_
  35
  36 #include <linux/module.h>
  37 #include <linux/slab.h>
  38 #include <linux/errno.h>
  39 #include <linux/etherdevice.h>
  40 #include <linux/netdevice.h>
  41 #include <linux/if_vlan.h>
  42 #include <linux/fs.h>
  43 #include <linux/rcupdate.h>
  44 #include <linux/notifier.h>
  45 #include <linux/delay.h>
  46
  47 #include <net/ipv6.h>
  48
  49 #include <rdma/ib_smi.h>
  50 #include <rdma/ib_user_verbs.h>
  51 #include <rdma/ib_addr.h>
  52 #include <rdma/ib_cache.h>
  53
  54 #include <dev/mlx4/driver.h>
  55 #include <dev/mlx4/cmd.h>
  56 #include <dev/mlx4/qp.h>
  57 #include <linux/sched.h>
  58 #include <linux/page.h>
  59 #include <linux/printk.h>
  60 #include "mlx4_ib.h"
  61 #include <rdma/mlx4-abi.h>
  62 #include "wc.h"
  63
  64 #define DRV_NAME        MLX4_IB_DRV_NAME
  65 #ifndef DRV_VERSION
  66 #define DRV_VERSION     "3.7.0"
  67 #endif
  68 #define DRV_RELDATE     "July 2021"
  69
  70 #define MLX4_IB_FLOW_MAX_PRIO 0xFFF
  71 #define MLX4_IB_FLOW_QPN_MASK 0xFFFFFF
  72 #define MLX4_IB_CARD_REV_A0   0xA0
  73
  74 MODULE_AUTHOR("Roland Dreier");
  75 MODULE_DESCRIPTION("Mellanox ConnectX HCA InfiniBand driver");
  76 MODULE_LICENSE("Dual BSD/GPL");
  77
  78 int mlx4_ib_sm_guid_assign = 0;
  79 module_param_named(sm_guid_assign, mlx4_ib_sm_guid_assign, int, 0444);
  80 MODULE_PARM_DESC(sm_guid_assign, "Enable SM alias_GUID assignment if sm_guid_assign > 0 (Default: 0)");
  81
  82 static const char mlx4_ib_version[] =
  83         DRV_NAME ": Mellanox ConnectX InfiniBand driver v"
  84         DRV_VERSION " (" DRV_RELDATE ")\n";
  85
  86 static void do_slave_init(struct mlx4_ib_dev *ibdev, int slave, int do_init);
  87
  88 static struct workqueue_struct *wq;
  89
  90 static void init_query_mad(struct ib_smp *mad)
  91 {
  92         mad->base_version  = 1;
  93         mad->mgmt_class    = IB_MGMT_CLASS_SUBN_LID_ROUTED;
  94         mad->class_version = 1;
  95         mad->method        = IB_MGMT_METHOD_GET;
  96 }
  97
  98 static int check_flow_steering_support(struct mlx4_dev *dev)
  99 {
 100         int eth_num_ports = 0;
 101         int ib_num_ports = 0;
 102
 103         int dmfs = dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED;
 104
 105         if (dmfs) {
 106                 int i;
 107                 mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH)
 108                         eth_num_ports++;
 109                 mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB)
 110                         ib_num_ports++;
 111                 dmfs &= (!ib_num_ports ||
 112                          (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_DMFS_IPOIB)) &&
 113                         (!eth_num_ports ||
 114                          (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FS_EN));
 115                 if (ib_num_ports && mlx4_is_mfunc(dev)) {
 116                         pr_warn("Device managed flow steering is unavailable for IB port in multifunction env.\n");
 117                         dmfs = 0;
 118                 }
 119         }
 120         return dmfs;
 121 }
 122
 123 static int num_ib_ports(struct mlx4_dev *dev)
 124 {
 125         int ib_ports = 0;
 126         int i;
 127
 128         mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB)
 129                 ib_ports++;
 130
 131         return ib_ports;
 132 }
 133
 134 static struct ifnet *mlx4_ib_get_netdev(struct ib_device *device, u8 port_num)
 135 {
 136         struct mlx4_ib_dev *ibdev = to_mdev(device);
 137         struct ifnet *dev;
 138
 139         rcu_read_lock();
 140         dev = mlx4_get_protocol_dev(ibdev->dev, MLX4_PROT_ETH, port_num);
 141
 142 #if 0
 143         if (dev) {
 144                 if (mlx4_is_bonded(ibdev->dev)) {
 145                         struct ifnet *upper = NULL;
 146
 147                         upper = netdev_master_upper_dev_get_rcu(dev);
 148                         if (upper) {
 149                                 struct ifnet *active;
 150
 151                                 active = bond_option_active_slave_get_rcu(mlx4_netdev_priv(upper));
 152                                 if (active)
 153                                         dev = active;
 154                         }
 155                 }
 156         }
 157 #endif
 158         if (dev)
 159                 if_ref(dev);
 160
 161         rcu_read_unlock();
 162         return dev;
 163 }
 164
 165 static int mlx4_ib_update_gids_v1(struct gid_entry *gids,
 166                                   struct mlx4_ib_dev *ibdev,
 167                                   u8 port_num)
 168 {
 169         struct mlx4_cmd_mailbox *mailbox;
 170         int err;
 171         struct mlx4_dev *dev = ibdev->dev;
 172         int i;
 173         union ib_gid *gid_tbl;
 174
 175         mailbox = mlx4_alloc_cmd_mailbox(dev);
 176         if (IS_ERR(mailbox))
 177                 return -ENOMEM;
 178
 179         gid_tbl = mailbox->buf;
 180
 181         for (i = 0; i < MLX4_MAX_PORT_GIDS; ++i)
 182                 memcpy(&gid_tbl[i], &gids[i].gid, sizeof(union ib_gid));
 183
 184         err = mlx4_cmd(dev, mailbox->dma,
 185                        MLX4_SET_PORT_GID_TABLE << 8 | port_num,
 186                        1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B,
 187                        MLX4_CMD_WRAPPED);
 188         if (mlx4_is_bonded(dev))
 189                 err += mlx4_cmd(dev, mailbox->dma,
 190                                 MLX4_SET_PORT_GID_TABLE << 8 | 2,
 191                                 1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B,
 192                                 MLX4_CMD_WRAPPED);
 193
 194         mlx4_free_cmd_mailbox(dev, mailbox);
 195         return err;
 196 }
 197
 198 static int mlx4_ib_update_gids_v1_v2(struct gid_entry *gids,
 199                                      struct mlx4_ib_dev *ibdev,
 200                                      u8 port_num)
 201 {
 202         struct mlx4_cmd_mailbox *mailbox;
 203         int err;
 204         struct mlx4_dev *dev = ibdev->dev;
 205         int i;
 206         struct {
 207                 union ib_gid    gid;
 208                 __be32          rsrvd1[2];
 209                 __be16          rsrvd2;
 210                 u8              type;
 211                 u8              version;
 212                 __be32          rsrvd3;
 213         } *gid_tbl;
 214
 215         mailbox = mlx4_alloc_cmd_mailbox(dev);
 216         if (IS_ERR(mailbox))
 217                 return -ENOMEM;
 218
 219         gid_tbl = mailbox->buf;
 220         for (i = 0; i < MLX4_MAX_PORT_GIDS; ++i) {
 221                 memcpy(&gid_tbl[i].gid, &gids[i].gid, sizeof(union ib_gid));
 222                 if (gids[i].gid_type == IB_GID_TYPE_ROCE_UDP_ENCAP) {
 223                         gid_tbl[i].version = 2;
 224                         if (!ipv6_addr_v4mapped((struct in6_addr *)&gids[i].gid))
 225                                 gid_tbl[i].type = 1;
 226                         else
 227                                 memset(&gid_tbl[i].gid, 0, 12);
 228                 }
 229         }
 230
 231         err = mlx4_cmd(dev, mailbox->dma,
 232                        MLX4_SET_PORT_ROCE_ADDR << 8 | port_num,
 233                        1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B,
 234                        MLX4_CMD_WRAPPED);
 235         if (mlx4_is_bonded(dev))
 236                 err += mlx4_cmd(dev, mailbox->dma,
 237                                 MLX4_SET_PORT_ROCE_ADDR << 8 | 2,
 238                                 1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B,
 239                                 MLX4_CMD_WRAPPED);
 240
 241         mlx4_free_cmd_mailbox(dev, mailbox);
 242         return err;
 243 }
 244
 245 static int mlx4_ib_update_gids(struct gid_entry *gids,
 246                                struct mlx4_ib_dev *ibdev,
 247                                u8 port_num)
 248 {
 249         if (ibdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ROCE_V1_V2)
 250                 return mlx4_ib_update_gids_v1_v2(gids, ibdev, port_num);
 251
 252         return mlx4_ib_update_gids_v1(gids, ibdev, port_num);
 253 }
 254
 255 static int mlx4_ib_add_gid(struct ib_device *device,
 256                            u8 port_num,
 257                            unsigned int index,
 258                            const union ib_gid *gid,
 259                            const struct ib_gid_attr *attr,
 260                            void **context)
 261 {
 262         struct mlx4_ib_dev *ibdev = to_mdev(device);
 263         struct mlx4_ib_iboe *iboe = &ibdev->iboe;
 264         struct mlx4_port_gid_table   *port_gid_table;
 265         int free = -1, found = -1;
 266         int ret = 0;
 267         int hw_update = 0;
 268         int i;
 269         struct gid_entry *gids = NULL;
 270
 271         if (!rdma_cap_roce_gid_table(device, port_num))
 272                 return -EINVAL;
 273
 274         if (port_num > MLX4_MAX_PORTS)
 275                 return -EINVAL;
 276
 277         if (!context)
 278                 return -EINVAL;
 279
 280         port_gid_table = &iboe->gids[port_num - 1];
 281         spin_lock_bh(&iboe->lock);
 282         for (i = 0; i < MLX4_MAX_PORT_GIDS; ++i) {
 283                 if (!memcmp(&port_gid_table->gids[i].gid, gid, sizeof(*gid)) &&
 284                     (port_gid_table->gids[i].gid_type == attr->gid_type))  {
 285                         found = i;
 286                         break;
 287                 }
 288                 if (free < 0 && !memcmp(&port_gid_table->gids[i].gid, &zgid, sizeof(*gid)))
 289                         free = i; /* HW has space */
 290         }
 291
 292         if (found < 0) {
 293                 if (free < 0) {
 294                         ret = -ENOSPC;
 295                 } else {
 296                         port_gid_table->gids[free].ctx = kmalloc(sizeof(*port_gid_table->gids[free].ctx), GFP_ATOMIC);
 297                         if (!port_gid_table->gids[free].ctx) {
 298                                 ret = -ENOMEM;
 299                         } else {
 300                                 *context = port_gid_table->gids[free].ctx;
 301                                 memcpy(&port_gid_table->gids[free].gid, gid, sizeof(*gid));
 302                                 port_gid_table->gids[free].gid_type = attr->gid_type;
 303                                 port_gid_table->gids[free].ctx->real_index = free;
 304                                 port_gid_table->gids[free].ctx->refcount = 1;
 305                                 hw_update = 1;
 306                         }
 307                 }
 308         } else {
 309                 struct gid_cache_context *ctx = port_gid_table->gids[found].ctx;
 310                 *context = ctx;
 311                 ctx->refcount++;
 312         }
 313         if (!ret && hw_update) {
 314                 gids = kmalloc(sizeof(*gids) * MLX4_MAX_PORT_GIDS, GFP_ATOMIC);
 315                 if (!gids) {
 316                         ret = -ENOMEM;
 317                 } else {
 318                         for (i = 0; i < MLX4_MAX_PORT_GIDS; i++) {
 319                                 memcpy(&gids[i].gid, &port_gid_table->gids[i].gid, sizeof(union ib_gid));
 320                                 gids[i].gid_type = port_gid_table->gids[i].gid_type;
 321                         }
 322                 }
 323         }
 324         spin_unlock_bh(&iboe->lock);
 325
 326         if (!ret && hw_update) {
 327                 ret = mlx4_ib_update_gids(gids, ibdev, port_num);
 328                 kfree(gids);
 329         }
 330
 331         return ret;
 332 }
 333
 334 static int mlx4_ib_del_gid(struct ib_device *device,
 335                            u8 port_num,
 336                            unsigned int index,
 337                            void **context)
 338 {
 339         struct gid_cache_context *ctx = *context;
 340         struct mlx4_ib_dev *ibdev = to_mdev(device);
 341         struct mlx4_ib_iboe *iboe = &ibdev->iboe;
 342         struct mlx4_port_gid_table   *port_gid_table;
 343         int ret = 0;
 344         int hw_update = 0;
 345         struct gid_entry *gids = NULL;
 346
 347         if (!rdma_cap_roce_gid_table(device, port_num))
 348                 return -EINVAL;
 349
 350         if (port_num > MLX4_MAX_PORTS)
 351                 return -EINVAL;
 352
 353         port_gid_table = &iboe->gids[port_num - 1];
 354         spin_lock_bh(&iboe->lock);
 355         if (ctx) {
 356                 ctx->refcount--;
 357                 if (!ctx->refcount) {
 358                         unsigned int real_index = ctx->real_index;
 359
 360                         memcpy(&port_gid_table->gids[real_index].gid, &zgid, sizeof(zgid));
 361                         kfree(port_gid_table->gids[real_index].ctx);
 362                         port_gid_table->gids[real_index].ctx = NULL;
 363                         hw_update = 1;
 364                 }
 365         }
 366         if (!ret && hw_update) {
 367                 int i;
 368
 369                 gids = kmalloc(sizeof(*gids) * MLX4_MAX_PORT_GIDS, GFP_ATOMIC);
 370                 if (!gids) {
 371                         ret = -ENOMEM;
 372                 } else {
 373                         for (i = 0; i < MLX4_MAX_PORT_GIDS; i++) {
 374                                 memcpy(&gids[i].gid,
 375                                        &port_gid_table->gids[i].gid,
 376                                        sizeof(union ib_gid));
 377                                 gids[i].gid_type =
 378                                     port_gid_table->gids[i].gid_type;
 379                         }
 380                 }
 381         }
 382         spin_unlock_bh(&iboe->lock);
 383
 384         if (!ret && hw_update) {
 385                 ret = mlx4_ib_update_gids(gids, ibdev, port_num);
 386                 kfree(gids);
 387         }
 388         return ret;
 389 }
 390
 391 int mlx4_ib_gid_index_to_real_index(struct mlx4_ib_dev *ibdev,
 392                                     u8 port_num, int index)
 393 {
 394         struct mlx4_ib_iboe *iboe = &ibdev->iboe;
 395         struct gid_cache_context *ctx = NULL;
 396         union ib_gid gid;
 397         struct mlx4_port_gid_table   *port_gid_table;
 398         int real_index = -EINVAL;
 399         int i;
 400         int ret;
 401         unsigned long flags;
 402         struct ib_gid_attr attr;
 403
 404         if (port_num > MLX4_MAX_PORTS)
 405                 return -EINVAL;
 406
 407         if (mlx4_is_bonded(ibdev->dev))
 408                 port_num = 1;
 409
 410         if (!rdma_cap_roce_gid_table(&ibdev->ib_dev, port_num))
 411                 return index;
 412
 413         ret = ib_get_cached_gid(&ibdev->ib_dev, port_num, index, &gid, &attr);
 414         if (ret)
 415                 return ret;
 416
 417         if (attr.ndev)
 418                 if_rele(attr.ndev);
 419
 420         if (!memcmp(&gid, &zgid, sizeof(gid)))
 421                 return -EINVAL;
 422
 423         spin_lock_irqsave(&iboe->lock, flags);
 424         port_gid_table = &iboe->gids[port_num - 1];
 425
 426         for (i = 0; i < MLX4_MAX_PORT_GIDS; ++i)
 427                 if (!memcmp(&port_gid_table->gids[i].gid, &gid, sizeof(gid)) &&
 428                     attr.gid_type == port_gid_table->gids[i].gid_type) {
 429                         ctx = port_gid_table->gids[i].ctx;
 430                         break;
 431                 }
 432         if (ctx)
 433                 real_index = ctx->real_index;
 434         spin_unlock_irqrestore(&iboe->lock, flags);
 435         return real_index;
 436 }
 437
 438 static int mlx4_ib_query_device(struct ib_device *ibdev,
 439                                 struct ib_device_attr *props,
 440                                 struct ib_udata *uhw)
 441 {
 442         struct mlx4_ib_dev *dev = to_mdev(ibdev);
 443         struct ib_smp *in_mad  = NULL;
 444         struct ib_smp *out_mad = NULL;
 445         int err = -ENOMEM;
 446         int have_ib_ports;
 447         struct mlx4_uverbs_ex_query_device cmd;
 448         struct mlx4_uverbs_ex_query_device_resp resp = {.comp_mask = 0};
 449         struct mlx4_clock_params clock_params;
 450
 451         if (uhw->inlen) {
 452                 if (uhw->inlen < sizeof(cmd))
 453                         return -EINVAL;
 454
 455                 err = ib_copy_from_udata(&cmd, uhw, sizeof(cmd));
 456                 if (err)
 457                         return err;
 458
 459                 if (cmd.comp_mask)
 460                         return -EINVAL;
 461
 462                 if (cmd.reserved)
 463                         return -EINVAL;
 464         }
 465
 466         resp.response_length = offsetof(typeof(resp), response_length) +
 467                 sizeof(resp.response_length);
 468         in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
 469         out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
 470         if (!in_mad || !out_mad)
 471                 goto out;
 472
 473         init_query_mad(in_mad);
 474         in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
 475
 476         err = mlx4_MAD_IFC(to_mdev(ibdev), MLX4_MAD_IFC_IGNORE_KEYS,
 477                            1, NULL, NULL, in_mad, out_mad);
 478         if (err)
 479                 goto out;
 480
 481         memset(props, 0, sizeof *props);
 482
 483         have_ib_ports = num_ib_ports(dev->dev);
 484
 485         props->fw_ver = dev->dev->caps.fw_ver;
 486         props->device_cap_flags    = IB_DEVICE_CHANGE_PHY_PORT |
 487                 IB_DEVICE_PORT_ACTIVE_EVENT             |
 488                 IB_DEVICE_SYS_IMAGE_GUID                |
 489                 IB_DEVICE_RC_RNR_NAK_GEN                |
 490                 IB_DEVICE_BLOCK_MULTICAST_LOOPBACK;
 491         if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR)
 492                 props->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR;
 493         if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR)
 494                 props->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR;
 495         if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_APM && have_ib_ports)
 496                 props->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG;
 497         if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UD_AV_PORT)
 498                 props->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE;
 499         if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_IPOIB_CSUM)
 500                 props->device_cap_flags |= IB_DEVICE_UD_IP_CSUM;
 501         if (dev->dev->caps.max_gso_sz &&
 502             (dev->dev->rev_id != MLX4_IB_CARD_REV_A0) &&
 503             (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BLH))
 504                 props->device_cap_flags |= IB_DEVICE_UD_TSO;
 505         if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_RESERVED_LKEY)
 506                 props->device_cap_flags |= IB_DEVICE_LOCAL_DMA_LKEY;
 507         if ((dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_LOCAL_INV) &&
 508             (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_REMOTE_INV) &&
 509             (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_FAST_REG_WR))
 510                 props->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS;
 511         if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC)
 512                 props->device_cap_flags |= IB_DEVICE_XRC;
 513         if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_MEM_WINDOW)
 514                 props->device_cap_flags |= IB_DEVICE_MEM_WINDOW;
 515         if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_TYPE_2_WIN) {
 516                 if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_WIN_TYPE_2B)
 517                         props->device_cap_flags |= IB_DEVICE_MEM_WINDOW_TYPE_2B;
 518                 else
 519                         props->device_cap_flags |= IB_DEVICE_MEM_WINDOW_TYPE_2A;
 520         }
 521         if (dev->steering_support == MLX4_STEERING_MODE_DEVICE_MANAGED)
 522                 props->device_cap_flags |= IB_DEVICE_MANAGED_FLOW_STEERING;
 523
 524         props->device_cap_flags |= IB_DEVICE_RAW_IP_CSUM;
 525
 526         props->vendor_id           = be32_to_cpup((__be32 *) (out_mad->data + 36)) &
 527                 0xffffff;
 528         props->vendor_part_id      = dev->dev->persist->pdev->device;
 529         props->hw_ver              = be32_to_cpup((__be32 *) (out_mad->data + 32));
 530         memcpy(&props->sys_image_guid, out_mad->data +  4, 8);
 531
 532         props->max_mr_size         = ~0ull;
 533         props->page_size_cap       = dev->dev->caps.page_size_cap;
 534         props->max_qp              = dev->dev->quotas.qp;
 535         props->max_qp_wr           = dev->dev->caps.max_wqes - MLX4_IB_SQ_MAX_SPARE;
 536         props->max_sge             = min(dev->dev->caps.max_sq_sg,
 537                                          dev->dev->caps.max_rq_sg);
 538         props->max_sge_rd          = MLX4_MAX_SGE_RD;
 539         props->max_cq              = dev->dev->quotas.cq;
 540         props->max_cqe             = dev->dev->caps.max_cqes;
 541         props->max_mr              = dev->dev->quotas.mpt;
 542         props->max_pd              = dev->dev->caps.num_pds - dev->dev->caps.reserved_pds;
 543         props->max_qp_rd_atom      = dev->dev->caps.max_qp_dest_rdma;
 544         props->max_qp_init_rd_atom = dev->dev->caps.max_qp_init_rdma;
 545         props->max_res_rd_atom     = props->max_qp_rd_atom * props->max_qp;
 546         props->max_srq             = dev->dev->quotas.srq;
 547         props->max_srq_wr          = dev->dev->caps.max_srq_wqes - 1;
 548         props->max_srq_sge         = dev->dev->caps.max_srq_sge;
 549         props->max_fast_reg_page_list_len = MLX4_MAX_FAST_REG_PAGES;
 550         props->local_ca_ack_delay  = dev->dev->caps.local_ca_ack_delay;
 551         props->atomic_cap          = dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_ATOMIC ?
 552                 IB_ATOMIC_HCA : IB_ATOMIC_NONE;
 553         props->masked_atomic_cap   = props->atomic_cap;
 554         props->max_pkeys           = dev->dev->caps.pkey_table_len[1];
 555         props->max_mcast_grp       = dev->dev->caps.num_mgms + dev->dev->caps.num_amgms;
 556         props->max_mcast_qp_attach = dev->dev->caps.num_qp_per_mgm;
 557         props->max_total_mcast_qp_attach = props->max_mcast_qp_attach *
 558                                            props->max_mcast_grp;
 559         props->max_map_per_fmr = dev->dev->caps.max_fmr_maps;
 560         props->hca_core_clock = dev->dev->caps.hca_core_clock * 1000UL;
 561         props->timestamp_mask = 0xFFFFFFFFFFFFULL;
 562
 563         if (uhw->outlen >= resp.response_length + sizeof(resp.hca_core_clock_offset)) {
 564                 resp.response_length += sizeof(resp.hca_core_clock_offset);
 565                 if (!mlx4_get_internal_clock_params(dev->dev, &clock_params)) {
 566                         resp.comp_mask |= QUERY_DEVICE_RESP_MASK_TIMESTAMP;
 567                         resp.hca_core_clock_offset = clock_params.offset % PAGE_SIZE;
 568                 }
 569         }
 570
 571         if (uhw->outlen) {
 572                 err = ib_copy_to_udata(uhw, &resp, resp.response_length);
 573                 if (err)
 574                         goto out;
 575         }
 576 out:
 577         kfree(in_mad);
 578         kfree(out_mad);
 579
 580         return err;
 581 }
 582
 583 static enum rdma_link_layer
 584 mlx4_ib_port_link_layer(struct ib_device *device, u8 port_num)
 585 {
 586         struct mlx4_dev *dev = to_mdev(device)->dev;
 587
 588         return dev->caps.port_mask[port_num] == MLX4_PORT_TYPE_IB ?
 589                 IB_LINK_LAYER_INFINIBAND : IB_LINK_LAYER_ETHERNET;
 590 }
 591
 592 static int ib_link_query_port(struct ib_device *ibdev, u8 port,
 593                               struct ib_port_attr *props, int netw_view)
 594 {
 595         struct ib_smp *in_mad  = NULL;
 596         struct ib_smp *out_mad = NULL;
 597         int ext_active_speed;
 598         int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
 599         int err = -ENOMEM;
 600
 601         in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
 602         out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
 603         if (!in_mad || !out_mad)
 604                 goto out;
 605
 606         init_query_mad(in_mad);
 607         in_mad->attr_id  = IB_SMP_ATTR_PORT_INFO;
 608         in_mad->attr_mod = cpu_to_be32(port);
 609
 610         if (mlx4_is_mfunc(to_mdev(ibdev)->dev) && netw_view)
 611                 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
 612
 613         err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, NULL, NULL,
 614                                 in_mad, out_mad);
 615         if (err)
 616                 goto out;
 617
 618
 619         props->lid              = be16_to_cpup((__be16 *) (out_mad->data + 16));
 620         props->lmc              = out_mad->data[34] & 0x7;
 621         props->sm_lid           = be16_to_cpup((__be16 *) (out_mad->data + 18));
 622         props->sm_sl            = out_mad->data[36] & 0xf;
 623         props->state            = out_mad->data[32] & 0xf;
 624         props->phys_state       = out_mad->data[33] >> 4;
 625         props->port_cap_flags   = be32_to_cpup((__be32 *) (out_mad->data + 20));
 626         if (netw_view)
 627                 props->gid_tbl_len = out_mad->data[50];
 628         else
 629                 props->gid_tbl_len = to_mdev(ibdev)->dev->caps.gid_table_len[port];
 630         props->max_msg_sz       = to_mdev(ibdev)->dev->caps.max_msg_sz;
 631         props->pkey_tbl_len     = to_mdev(ibdev)->dev->caps.pkey_table_len[port];
 632         props->bad_pkey_cntr    = be16_to_cpup((__be16 *) (out_mad->data + 46));
 633         props->qkey_viol_cntr   = be16_to_cpup((__be16 *) (out_mad->data + 48));
 634         props->active_width     = out_mad->data[31] & 0xf;
 635         props->active_speed     = out_mad->data[35] >> 4;
 636         props->max_mtu          = out_mad->data[41] & 0xf;
 637         props->active_mtu       = out_mad->data[36] >> 4;
 638         props->subnet_timeout   = out_mad->data[51] & 0x1f;
 639         props->max_vl_num       = out_mad->data[37] >> 4;
 640         props->init_type_reply  = out_mad->data[41] >> 4;
 641
 642         /* Check if extended speeds (EDR/FDR/...) are supported */
 643         if (props->port_cap_flags & IB_PORT_EXTENDED_SPEEDS_SUP) {
 644                 ext_active_speed = out_mad->data[62] >> 4;
 645
 646                 switch (ext_active_speed) {
 647                 case 1:
 648                         props->active_speed = IB_SPEED_FDR;
 649                         break;
 650                 case 2:
 651                         props->active_speed = IB_SPEED_EDR;
 652                         break;
 653                 }
 654         }
 655
 656         /* If reported active speed is QDR, check if is FDR-10 */
 657         if (props->active_speed == IB_SPEED_QDR) {
 658                 init_query_mad(in_mad);
 659                 in_mad->attr_id = MLX4_ATTR_EXTENDED_PORT_INFO;
 660                 in_mad->attr_mod = cpu_to_be32(port);
 661
 662                 err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port,
 663                                    NULL, NULL, in_mad, out_mad);
 664                 if (err)
 665                         goto out;
 666
 667                 /* Checking LinkSpeedActive for FDR-10 */
 668                 if (out_mad->data[15] & 0x1)
 669                         props->active_speed = IB_SPEED_FDR10;
 670         }
 671
 672         /* Avoid wrong speed value returned by FW if the IB link is down. */
 673         if (props->state == IB_PORT_DOWN)
 674                  props->active_speed = IB_SPEED_SDR;
 675
 676 out:
 677         kfree(in_mad);
 678         kfree(out_mad);
 679         return err;
 680 }
 681
 682 static u8 state_to_phys_state(enum ib_port_state state)
 683 {
 684         return state == IB_PORT_ACTIVE ?
 685                 IB_PORT_PHYS_STATE_LINK_UP : IB_PORT_PHYS_STATE_DISABLED;
 686 }
 687
 688 static int eth_link_query_port(struct ib_device *ibdev, u8 port,
 689                                struct ib_port_attr *props, int netw_view)
 690 {
 691
 692         struct mlx4_ib_dev *mdev = to_mdev(ibdev);
 693         struct mlx4_ib_iboe *iboe = &mdev->iboe;
 694         struct ifnet *ndev;
 695         enum ib_mtu tmp;
 696         struct mlx4_cmd_mailbox *mailbox;
 697         int err = 0;
 698         int is_bonded = mlx4_is_bonded(mdev->dev);
 699
 700         mailbox = mlx4_alloc_cmd_mailbox(mdev->dev);
 701         if (IS_ERR(mailbox))
 702                 return PTR_ERR(mailbox);
 703
 704         err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma, port, 0,
 705                            MLX4_CMD_QUERY_PORT, MLX4_CMD_TIME_CLASS_B,
 706                            MLX4_CMD_WRAPPED);
 707         if (err)
 708                 goto out;
 709
 710         props->active_width     =  (((u8 *)mailbox->buf)[5] == 0x40) ?
 711                                                 IB_WIDTH_4X : IB_WIDTH_1X;
 712         props->active_speed     = IB_SPEED_QDR;
 713         props->port_cap_flags   = IB_PORT_CM_SUP | IB_PORT_IP_BASED_GIDS;
 714         props->gid_tbl_len      = mdev->dev->caps.gid_table_len[port];
 715         props->max_msg_sz       = mdev->dev->caps.max_msg_sz;
 716         props->pkey_tbl_len     = 1;
 717         props->max_mtu          = IB_MTU_4096;
 718         props->max_vl_num       = 2;
 719         props->state            = IB_PORT_DOWN;
 720         props->phys_state       = state_to_phys_state(props->state);
 721         props->active_mtu       = IB_MTU_256;
 722         spin_lock_bh(&iboe->lock);
 723         ndev = iboe->netdevs[port - 1];
 724         if (ndev && is_bonded) {
 725 #if 0
 726                 rcu_read_lock(); /* required to get upper dev */
 727                 ndev = netdev_master_upper_dev_get_rcu(ndev);
 728                 rcu_read_unlock();
 729 #endif
 730         }
 731         if (!ndev)
 732                 goto out_unlock;
 733
 734         tmp = iboe_get_mtu(ndev->if_mtu);
 735         props->active_mtu = tmp ? min(props->max_mtu, tmp) : IB_MTU_256;
 736
 737         props->state            = ((ndev->if_drv_flags & IFF_DRV_RUNNING) != 0 &&
 738                                    ndev->if_link_state == LINK_STATE_UP) ?
 739                                         IB_PORT_ACTIVE : IB_PORT_DOWN;
 740         props->phys_state       = state_to_phys_state(props->state);
 741 out_unlock:
 742         spin_unlock_bh(&iboe->lock);
 743 out:
 744         mlx4_free_cmd_mailbox(mdev->dev, mailbox);
 745         return err;
 746 }
 747
 748 int __mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
 749                          struct ib_port_attr *props, int netw_view)
 750 {
 751         int err;
 752
 753         memset(props, 0, sizeof *props);
 754
 755         err = mlx4_ib_port_link_layer(ibdev, port) == IB_LINK_LAYER_INFINIBAND ?
 756                 ib_link_query_port(ibdev, port, props, netw_view) :
 757                                 eth_link_query_port(ibdev, port, props, netw_view);
 758
 759         return err;
 760 }
 761
 762 static int mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
 763                               struct ib_port_attr *props)
 764 {
 765         /* returns host view */
 766         return __mlx4_ib_query_port(ibdev, port, props, 0);
 767 }
 768
 769 int __mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
 770                         union ib_gid *gid, int netw_view)
 771 {
 772         struct ib_smp *in_mad  = NULL;
 773         struct ib_smp *out_mad = NULL;
 774         int err = -ENOMEM;
 775         struct mlx4_ib_dev *dev = to_mdev(ibdev);
 776         int clear = 0;
 777         int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
 778
 779         in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
 780         out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
 781         if (!in_mad || !out_mad)
 782                 goto out;
 783
 784         init_query_mad(in_mad);
 785         in_mad->attr_id  = IB_SMP_ATTR_PORT_INFO;
 786         in_mad->attr_mod = cpu_to_be32(port);
 787
 788         if (mlx4_is_mfunc(dev->dev) && netw_view)
 789                 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
 790
 791         err = mlx4_MAD_IFC(dev, mad_ifc_flags, port, NULL, NULL, in_mad, out_mad);
 792         if (err)
 793                 goto out;
 794
 795         memcpy(gid->raw, out_mad->data + 8, 8);
 796
 797         if (mlx4_is_mfunc(dev->dev) && !netw_view) {
 798                 if (index) {
 799                         /* For any index > 0, return the null guid */
 800                         err = 0;
 801                         clear = 1;
 802                         goto out;
 803                 }
 804         }
 805
 806         init_query_mad(in_mad);
 807         in_mad->attr_id  = IB_SMP_ATTR_GUID_INFO;
 808         in_mad->attr_mod = cpu_to_be32(index / 8);
 809
 810         err = mlx4_MAD_IFC(dev, mad_ifc_flags, port,
 811                            NULL, NULL, in_mad, out_mad);
 812         if (err)
 813                 goto out;
 814
 815         memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8);
 816
 817 out:
 818         if (clear)
 819                 memset(gid->raw + 8, 0, 8);
 820         kfree(in_mad);
 821         kfree(out_mad);
 822         return err;
 823 }
 824
 825 static int mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
 826                              union ib_gid *gid)
 827 {
 828         int ret;
 829
 830         if (rdma_protocol_ib(ibdev, port))
 831                 return __mlx4_ib_query_gid(ibdev, port, index, gid, 0);
 832
 833         if (!rdma_protocol_roce(ibdev, port))
 834                 return -ENODEV;
 835
 836         if (!rdma_cap_roce_gid_table(ibdev, port))
 837                 return -ENODEV;
 838
 839         ret = ib_get_cached_gid(ibdev, port, index, gid, NULL);
 840         if (ret == -EAGAIN) {
 841                 memcpy(gid, &zgid, sizeof(*gid));
 842                 return 0;
 843         }
 844
 845         return ret;
 846 }
 847
 848 static int mlx4_ib_query_sl2vl(struct ib_device *ibdev, u8 port, u64 *sl2vl_tbl)
 849 {
 850         union sl2vl_tbl_to_u64 sl2vl64;
 851         struct ib_smp *in_mad  = NULL;
 852         struct ib_smp *out_mad = NULL;
 853         int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
 854         int err = -ENOMEM;
 855         int jj;
 856
 857         if (mlx4_is_slave(to_mdev(ibdev)->dev)) {
 858                 *sl2vl_tbl = 0;
 859                 return 0;
 860         }
 861
 862         in_mad  = kzalloc(sizeof(*in_mad), GFP_KERNEL);
 863         out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL);
 864         if (!in_mad || !out_mad)
 865                 goto out;
 866
 867         init_query_mad(in_mad);
 868         in_mad->attr_id  = IB_SMP_ATTR_SL_TO_VL_TABLE;
 869         in_mad->attr_mod = 0;
 870
 871         if (mlx4_is_mfunc(to_mdev(ibdev)->dev))
 872                 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
 873
 874         err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, NULL, NULL,
 875                            in_mad, out_mad);
 876         if (err)
 877                 goto out;
 878
 879         for (jj = 0; jj < 8; jj++)
 880                 sl2vl64.sl8[jj] = ((struct ib_smp *)out_mad)->data[jj];
 881         *sl2vl_tbl = sl2vl64.sl64;
 882
 883 out:
 884         kfree(in_mad);
 885         kfree(out_mad);
 886         return err;
 887 }
 888
 889 static void mlx4_init_sl2vl_tbl(struct mlx4_ib_dev *mdev)
 890 {
 891         u64 sl2vl;
 892         int i;
 893         int err;
 894
 895         for (i = 1; i <= mdev->dev->caps.num_ports; i++) {
 896                 if (mdev->dev->caps.port_type[i] == MLX4_PORT_TYPE_ETH)
 897                         continue;
 898                 err = mlx4_ib_query_sl2vl(&mdev->ib_dev, i, &sl2vl);
 899                 if (err) {
 900                         pr_err("Unable to get default sl to vl mapping for port %d.  Using all zeroes (%d)\n",
 901                                i, err);
 902                         sl2vl = 0;
 903                 }
 904                 atomic64_set(&mdev->sl2vl[i - 1], sl2vl);
 905         }
 906 }
 907
 908 int __mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
 909                          u16 *pkey, int netw_view)
 910 {
 911         struct ib_smp *in_mad  = NULL;
 912         struct ib_smp *out_mad = NULL;
 913         int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
 914         int err = -ENOMEM;
 915
 916         in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
 917         out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
 918         if (!in_mad || !out_mad)
 919                 goto out;
 920
 921         init_query_mad(in_mad);
 922         in_mad->attr_id  = IB_SMP_ATTR_PKEY_TABLE;
 923         in_mad->attr_mod = cpu_to_be32(index / 32);
 924
 925         if (mlx4_is_mfunc(to_mdev(ibdev)->dev) && netw_view)
 926                 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
 927
 928         err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, NULL, NULL,
 929                            in_mad, out_mad);
 930         if (err)
 931                 goto out;
 932
 933         *pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]);
 934
 935 out:
 936         kfree(in_mad);
 937         kfree(out_mad);
 938         return err;
 939 }
 940
 941 static int mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index, u16 *pkey)
 942 {
 943         return __mlx4_ib_query_pkey(ibdev, port, index, pkey, 0);
 944 }
 945
 946 static int mlx4_ib_modify_device(struct ib_device *ibdev, int mask,
 947                                  struct ib_device_modify *props)
 948 {
 949         struct mlx4_cmd_mailbox *mailbox;
 950         unsigned long flags;
 951
 952         if (mask & ~IB_DEVICE_MODIFY_NODE_DESC)
 953                 return -EOPNOTSUPP;
 954
 955         if (!(mask & IB_DEVICE_MODIFY_NODE_DESC))
 956                 return 0;
 957
 958         if (mlx4_is_slave(to_mdev(ibdev)->dev))
 959                 return -EOPNOTSUPP;
 960
 961         spin_lock_irqsave(&to_mdev(ibdev)->sm_lock, flags);
 962         memcpy(ibdev->node_desc, props->node_desc, IB_DEVICE_NODE_DESC_MAX);
 963         spin_unlock_irqrestore(&to_mdev(ibdev)->sm_lock, flags);
 964
 965         /*
 966          * If possible, pass node desc to FW, so it can generate
 967          * a 144 trap.  If cmd fails, just ignore.
 968          */
 969         mailbox = mlx4_alloc_cmd_mailbox(to_mdev(ibdev)->dev);
 970         if (IS_ERR(mailbox))
 971                 return 0;
 972
 973         memcpy(mailbox->buf, props->node_desc, IB_DEVICE_NODE_DESC_MAX);
 974         mlx4_cmd(to_mdev(ibdev)->dev, mailbox->dma, 1, 0,
 975                  MLX4_CMD_SET_NODE, MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
 976
 977         mlx4_free_cmd_mailbox(to_mdev(ibdev)->dev, mailbox);
 978
 979         return 0;
 980 }
 981
 982 static int mlx4_ib_SET_PORT(struct mlx4_ib_dev *dev, u8 port, int reset_qkey_viols,
 983                             u32 cap_mask)
 984 {
 985         struct mlx4_cmd_mailbox *mailbox;
 986         int err;
 987
 988         mailbox = mlx4_alloc_cmd_mailbox(dev->dev);
 989         if (IS_ERR(mailbox))
 990                 return PTR_ERR(mailbox);
 991
 992         if (dev->dev->flags & MLX4_FLAG_OLD_PORT_CMDS) {
 993                 *(u8 *) mailbox->buf         = !!reset_qkey_viols << 6;
 994                 ((__be32 *) mailbox->buf)[2] = cpu_to_be32(cap_mask);
 995         } else {
 996                 ((u8 *) mailbox->buf)[3]     = !!reset_qkey_viols;
 997                 ((__be32 *) mailbox->buf)[1] = cpu_to_be32(cap_mask);
 998         }
 999
1000         err = mlx4_cmd(dev->dev, mailbox->dma, port, MLX4_SET_PORT_IB_OPCODE,
1001                        MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B,
1002                        MLX4_CMD_WRAPPED);
1003
1004         mlx4_free_cmd_mailbox(dev->dev, mailbox);
1005         return err;
1006 }
1007
1008 static int mlx4_ib_modify_port(struct ib_device *ibdev, u8 port, int mask,
1009                                struct ib_port_modify *props)
1010 {
1011         struct mlx4_ib_dev *mdev = to_mdev(ibdev);
1012         u8 is_eth = mdev->dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH;
1013         struct ib_port_attr attr;
1014         u32 cap_mask;
1015         int err;
1016
1017         /* return OK if this is RoCE. CM calls ib_modify_port() regardless
1018          * of whether port link layer is ETH or IB. For ETH ports, qkey
1019          * violations and port capabilities are not meaningful.
1020          */
1021         if (is_eth)
1022                 return 0;
1023
1024         mutex_lock(&mdev->cap_mask_mutex);
1025
1026         err = mlx4_ib_query_port(ibdev, port, &attr);
1027         if (err)
1028                 goto out;
1029
1030         cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) &
1031                 ~props->clr_port_cap_mask;
1032
1033         err = mlx4_ib_SET_PORT(mdev, port,
1034                                !!(mask & IB_PORT_RESET_QKEY_CNTR),
1035                                cap_mask);
1036
1037 out:
1038         mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex);
1039         return err;
1040 }
1041
1042 static int mlx4_ib_alloc_ucontext(struct ib_ucontext *uctx,
1043                                   struct ib_udata *udata)
1044 {
1045         struct ib_device *ibdev = uctx->device;
1046         struct mlx4_ib_dev *dev = to_mdev(ibdev);
1047         struct mlx4_ib_ucontext *context = to_mucontext(uctx);
1048         struct mlx4_ib_alloc_ucontext_resp_v3 resp_v3;
1049         struct mlx4_ib_alloc_ucontext_resp resp;
1050         int err;
1051
1052         if (!dev->ib_active)
1053                 return -EAGAIN;
1054
1055         if (ibdev->uverbs_abi_ver == MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION) {
1056                 resp_v3.qp_tab_size      = dev->dev->caps.num_qps;
1057                 resp_v3.bf_reg_size      = dev->dev->caps.bf_reg_size;
1058                 resp_v3.bf_regs_per_page = dev->dev->caps.bf_regs_per_page;
1059         } else {
1060                 resp.dev_caps         = dev->dev->caps.userspace_caps;
1061                 resp.qp_tab_size      = dev->dev->caps.num_qps;
1062                 resp.bf_reg_size      = dev->dev->caps.bf_reg_size;
1063                 resp.bf_regs_per_page = dev->dev->caps.bf_regs_per_page;
1064                 resp.cqe_size         = dev->dev->caps.cqe_size;
1065         }
1066
1067         err = mlx4_uar_alloc(to_mdev(ibdev)->dev, &context->uar);
1068         if (err)
1069                 return err;
1070
1071         INIT_LIST_HEAD(&context->db_page_list);
1072         mutex_init(&context->db_page_mutex);
1073
1074         if (ibdev->uverbs_abi_ver == MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION)
1075                 err = ib_copy_to_udata(udata, &resp_v3, sizeof(resp_v3));
1076         else
1077                 err = ib_copy_to_udata(udata, &resp, sizeof(resp));
1078
1079         if (err) {
1080                 mlx4_uar_free(to_mdev(ibdev)->dev, &context->uar);
1081                 return -EFAULT;
1082         }
1083
1084         return err;
1085 }
1086
1087 static void mlx4_ib_dealloc_ucontext(struct ib_ucontext *ibcontext)
1088 {
1089         struct mlx4_ib_ucontext *context = to_mucontext(ibcontext);
1090
1091         mlx4_uar_free(to_mdev(ibcontext->device)->dev, &context->uar);
1092 }
1093
1094 static int mlx4_ib_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
1095 {
1096         struct mlx4_ib_dev *dev = to_mdev(context->device);
1097
1098         switch (vma->vm_pgoff) {
1099         case 0:
1100                 return rdma_user_mmap_io(context, vma,
1101                                          to_mucontext(context)->uar.pfn,
1102                                          PAGE_SIZE,
1103                                          pgprot_noncached(vma->vm_page_prot),
1104                                          NULL);
1105
1106         case 1:
1107                 if (dev->dev->caps.bf_reg_size == 0)
1108                         return -EINVAL;
1109                 return rdma_user_mmap_io(
1110                         context, vma,
1111                         to_mucontext(context)->uar.pfn +
1112                                 dev->dev->caps.num_uars,
1113                         PAGE_SIZE, pgprot_writecombine(vma->vm_page_prot),
1114                         NULL);
1115
1116         case 3: {
1117                 struct mlx4_clock_params params;
1118                 int ret;
1119
1120                 ret = mlx4_get_internal_clock_params(dev->dev, &params);
1121                 if (ret)
1122                         return ret;
1123
1124                 return rdma_user_mmap_io(
1125                         context, vma,
1126                         (pci_resource_start(dev->dev->persist->pdev,
1127                                             params.bar) +
1128                          params.offset) >>
1129                                 PAGE_SHIFT,
1130                         PAGE_SIZE, pgprot_noncached(vma->vm_page_prot),
1131                         NULL);
1132         }
1133
1134         default:
1135                 return -EINVAL;
1136         }
1137 }
1138
1139 static int mlx4_ib_alloc_pd(struct ib_pd *ibpd, struct ib_udata *udata)
1140 {
1141         struct mlx4_ib_pd *pd = to_mpd(ibpd);
1142         struct ib_device *ibdev = ibpd->device;
1143         int err;
1144
1145         err = mlx4_pd_alloc(to_mdev(ibdev)->dev, &pd->pdn);
1146         if (err)
1147                 return err;
1148
1149         if (udata && ib_copy_to_udata(udata, &pd->pdn, sizeof(__u32))) {
1150                 mlx4_pd_free(to_mdev(ibdev)->dev, pd->pdn);
1151                 return -EFAULT;
1152         }
1153         return 0;
1154 }
1155
1156 static void mlx4_ib_dealloc_pd(struct ib_pd *pd, struct ib_udata *udata)
1157 {
1158         mlx4_pd_free(to_mdev(pd->device)->dev, to_mpd(pd)->pdn);
1159 }
1160
1161 static struct ib_xrcd *mlx4_ib_alloc_xrcd(struct ib_device *ibdev,
1162                                           struct ib_udata *udata)
1163 {
1164         struct mlx4_ib_xrcd *xrcd;
1165         struct ib_cq_init_attr cq_attr = {};
1166         int err;
1167
1168         if (!(to_mdev(ibdev)->dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC))
1169                 return ERR_PTR(-ENOSYS);
1170
1171         xrcd = kmalloc(sizeof *xrcd, GFP_KERNEL);
1172         if (!xrcd)
1173                 return ERR_PTR(-ENOMEM);
1174
1175         err = mlx4_xrcd_alloc(to_mdev(ibdev)->dev, &xrcd->xrcdn);
1176         if (err)
1177                 goto err1;
1178
1179         xrcd->pd = ib_alloc_pd(ibdev, 0);
1180         if (IS_ERR(xrcd->pd)) {
1181                 err = PTR_ERR(xrcd->pd);
1182                 goto err2;
1183         }
1184
1185         cq_attr.cqe = 1;
1186         xrcd->cq = ib_create_cq(ibdev, NULL, NULL, xrcd, &cq_attr);
1187         if (IS_ERR(xrcd->cq)) {
1188                 err = PTR_ERR(xrcd->cq);
1189                 goto err3;
1190         }
1191
1192         return &xrcd->ibxrcd;
1193
1194 err3:
1195         ib_dealloc_pd(xrcd->pd);
1196 err2:
1197         mlx4_xrcd_free(to_mdev(ibdev)->dev, xrcd->xrcdn);
1198 err1:
1199         kfree(xrcd);
1200         return ERR_PTR(err);
1201 }
1202
1203 static int mlx4_ib_dealloc_xrcd(struct ib_xrcd *xrcd, struct ib_udata *udata)
1204 {
1205         ib_destroy_cq(to_mxrcd(xrcd)->cq);
1206         ib_dealloc_pd(to_mxrcd(xrcd)->pd);
1207         mlx4_xrcd_free(to_mdev(xrcd->device)->dev, to_mxrcd(xrcd)->xrcdn);
1208         kfree(xrcd);
1209
1210         return 0;
1211 }
1212
1213 static int add_gid_entry(struct ib_qp *ibqp, union ib_gid *gid)
1214 {
1215         struct mlx4_ib_qp *mqp = to_mqp(ibqp);
1216         struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
1217         struct mlx4_ib_gid_entry *ge;
1218
1219         ge = kzalloc(sizeof *ge, GFP_KERNEL);
1220         if (!ge)
1221                 return -ENOMEM;
1222
1223         ge->gid = *gid;
1224         if (mlx4_ib_add_mc(mdev, mqp, gid)) {
1225                 ge->port = mqp->port;
1226                 ge->added = 1;
1227         }
1228
1229         mutex_lock(&mqp->mutex);
1230         list_add_tail(&ge->list, &mqp->gid_list);
1231         mutex_unlock(&mqp->mutex);
1232
1233         return 0;
1234 }
1235
1236 static void mlx4_ib_delete_counters_table(struct mlx4_ib_dev *ibdev,
1237                                           struct mlx4_ib_counters *ctr_table)
1238 {
1239         struct counter_index *counter, *tmp_count;
1240
1241         mutex_lock(&ctr_table->mutex);
1242         list_for_each_entry_safe(counter, tmp_count, &ctr_table->counters_list,
1243                                  list) {
1244                 if (counter->allocated)
1245                         mlx4_counter_free(ibdev->dev, counter->index);
1246                 list_del(&counter->list);
1247                 kfree(counter);
1248         }
1249         mutex_unlock(&ctr_table->mutex);
1250 }
1251
1252 int mlx4_ib_add_mc(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
1253                    union ib_gid *gid)
1254 {
1255         struct ifnet *ndev;
1256         int ret = 0;
1257
1258         if (!mqp->port)
1259                 return 0;
1260
1261         spin_lock_bh(&mdev->iboe.lock);
1262         ndev = mdev->iboe.netdevs[mqp->port - 1];
1263         if (ndev)
1264                 if_ref(ndev);
1265         spin_unlock_bh(&mdev->iboe.lock);
1266
1267         if (ndev) {
1268                 ret = 1;
1269                 if_rele(ndev);
1270         }
1271
1272         return ret;
1273 }
1274
1275 struct mlx4_ib_steering {
1276         struct list_head list;
1277         struct mlx4_flow_reg_id reg_id;
1278         union ib_gid gid;
1279 };
1280
1281 #define LAST_ETH_FIELD vlan_tag
1282 #define LAST_IB_FIELD sl
1283 #define LAST_IPV4_FIELD dst_ip
1284 #define LAST_TCP_UDP_FIELD src_port
1285
1286 /* Field is the last supported field */
1287 #define FIELDS_NOT_SUPPORTED(filter, field)\
1288         memchr_inv((void *)&filter.field  +\
1289                    sizeof(filter.field), 0,\
1290                    sizeof(filter) -\
1291                    offsetof(typeof(filter), field) -\
1292                    sizeof(filter.field))
1293
1294 static int parse_flow_attr(struct mlx4_dev *dev,
1295                            u32 qp_num,
1296                            union ib_flow_spec *ib_spec,
1297                            struct _rule_hw *mlx4_spec)
1298 {
1299         enum mlx4_net_trans_rule_id type;
1300
1301         switch (ib_spec->type) {
1302         case IB_FLOW_SPEC_ETH:
1303                 if (FIELDS_NOT_SUPPORTED(ib_spec->eth.mask, LAST_ETH_FIELD))
1304                         return -ENOTSUPP;
1305
1306                 type = MLX4_NET_TRANS_RULE_ID_ETH;
1307                 memcpy(mlx4_spec->eth.dst_mac, ib_spec->eth.val.dst_mac,
1308                        ETH_ALEN);
1309                 memcpy(mlx4_spec->eth.dst_mac_msk, ib_spec->eth.mask.dst_mac,
1310                        ETH_ALEN);
1311                 mlx4_spec->eth.vlan_tag = ib_spec->eth.val.vlan_tag;
1312                 mlx4_spec->eth.vlan_tag_msk = ib_spec->eth.mask.vlan_tag;
1313                 break;
1314         case IB_FLOW_SPEC_IB:
1315                 if (FIELDS_NOT_SUPPORTED(ib_spec->ib.mask, LAST_IB_FIELD))
1316                         return -ENOTSUPP;
1317
1318                 type = MLX4_NET_TRANS_RULE_ID_IB;
1319                 mlx4_spec->ib.l3_qpn =
1320                         cpu_to_be32(qp_num);
1321                 mlx4_spec->ib.qpn_mask =
1322                         cpu_to_be32(MLX4_IB_FLOW_QPN_MASK);
1323                 break;
1324
1325
1326         case IB_FLOW_SPEC_IPV4:
1327                 if (FIELDS_NOT_SUPPORTED(ib_spec->ipv4.mask, LAST_IPV4_FIELD))
1328                         return -ENOTSUPP;
1329
1330                 type = MLX4_NET_TRANS_RULE_ID_IPV4;
1331                 mlx4_spec->ipv4.src_ip = ib_spec->ipv4.val.src_ip;
1332                 mlx4_spec->ipv4.src_ip_msk = ib_spec->ipv4.mask.src_ip;
1333                 mlx4_spec->ipv4.dst_ip = ib_spec->ipv4.val.dst_ip;
1334                 mlx4_spec->ipv4.dst_ip_msk = ib_spec->ipv4.mask.dst_ip;
1335                 break;
1336
1337         case IB_FLOW_SPEC_TCP:
1338         case IB_FLOW_SPEC_UDP:
1339                 if (FIELDS_NOT_SUPPORTED(ib_spec->tcp_udp.mask, LAST_TCP_UDP_FIELD))
1340                         return -ENOTSUPP;
1341
1342                 type = ib_spec->type == IB_FLOW_SPEC_TCP ?
1343                                         MLX4_NET_TRANS_RULE_ID_TCP :
1344                                         MLX4_NET_TRANS_RULE_ID_UDP;
1345                 mlx4_spec->tcp_udp.dst_port = ib_spec->tcp_udp.val.dst_port;
1346                 mlx4_spec->tcp_udp.dst_port_msk = ib_spec->tcp_udp.mask.dst_port;
1347                 mlx4_spec->tcp_udp.src_port = ib_spec->tcp_udp.val.src_port;
1348                 mlx4_spec->tcp_udp.src_port_msk = ib_spec->tcp_udp.mask.src_port;
1349                 break;
1350
1351         default:
1352                 return -EINVAL;
1353         }
1354         if (mlx4_map_sw_to_hw_steering_id(dev, type) < 0 ||
1355             mlx4_hw_rule_sz(dev, type) < 0)
1356                 return -EINVAL;
1357         mlx4_spec->id = cpu_to_be16(mlx4_map_sw_to_hw_steering_id(dev, type));
1358         mlx4_spec->size = mlx4_hw_rule_sz(dev, type) >> 2;
1359         return mlx4_hw_rule_sz(dev, type);
1360 }
1361
1362 struct default_rules {
1363         __u32 mandatory_fields[IB_FLOW_SPEC_SUPPORT_LAYERS];
1364         __u32 mandatory_not_fields[IB_FLOW_SPEC_SUPPORT_LAYERS];
1365         __u32 rules_create_list[IB_FLOW_SPEC_SUPPORT_LAYERS];
1366         __u8  link_layer;
1367 };
1368 static const struct default_rules default_table[] = {
1369         {
1370                 .mandatory_fields = {IB_FLOW_SPEC_IPV4},
1371                 .mandatory_not_fields = {IB_FLOW_SPEC_ETH},
1372                 .rules_create_list = {IB_FLOW_SPEC_IB},
1373                 .link_layer = IB_LINK_LAYER_INFINIBAND
1374         }
1375 };
1376
1377 static int __mlx4_ib_default_rules_match(struct ib_qp *qp,
1378                                          struct ib_flow_attr *flow_attr)
1379 {
1380         int i, j, k;
1381         void *ib_flow;
1382         const struct default_rules *pdefault_rules = default_table;
1383         u8 link_layer = rdma_port_get_link_layer(qp->device, flow_attr->port);
1384
1385         for (i = 0; i < ARRAY_SIZE(default_table); i++, pdefault_rules++) {
1386                 __u32 field_types[IB_FLOW_SPEC_SUPPORT_LAYERS];
1387                 memset(&field_types, 0, sizeof(field_types));
1388
1389                 if (link_layer != pdefault_rules->link_layer)
1390                         continue;
1391
1392                 ib_flow = flow_attr + 1;
1393                 /* we assume the specs are sorted */
1394                 for (j = 0, k = 0; k < IB_FLOW_SPEC_SUPPORT_LAYERS &&
1395                      j < flow_attr->num_of_specs; k++) {
1396                         union ib_flow_spec *current_flow =
1397                                 (union ib_flow_spec *)ib_flow;
1398
1399                         /* same layer but different type */
1400                         if (((current_flow->type & IB_FLOW_SPEC_LAYER_MASK) ==
1401                              (pdefault_rules->mandatory_fields[k] &
1402                               IB_FLOW_SPEC_LAYER_MASK)) &&
1403                             (current_flow->type !=
1404                              pdefault_rules->mandatory_fields[k]))
1405                                 goto out;
1406
1407                         /* same layer, try match next one */
1408                         if (current_flow->type ==
1409                             pdefault_rules->mandatory_fields[k]) {
1410                                 j++;
1411                                 ib_flow +=
1412                                         ((union ib_flow_spec *)ib_flow)->size;
1413                         }
1414                 }
1415
1416                 ib_flow = flow_attr + 1;
1417                 for (j = 0; j < flow_attr->num_of_specs;
1418                      j++, ib_flow += ((union ib_flow_spec *)ib_flow)->size)
1419                         for (k = 0; k < IB_FLOW_SPEC_SUPPORT_LAYERS; k++)
1420                                 /* same layer and same type */
1421                                 if (((union ib_flow_spec *)ib_flow)->type ==
1422                                     pdefault_rules->mandatory_not_fields[k])
1423                                         goto out;
1424
1425                 return i;
1426         }
1427 out:
1428         return -1;
1429 }
1430
1431 static int __mlx4_ib_create_default_rules(
1432                 struct mlx4_ib_dev *mdev,
1433                 struct ib_qp *qp,
1434                 const struct default_rules *pdefault_rules,
1435                 struct _rule_hw *mlx4_spec) {
1436         int size = 0;
1437         int i;
1438
1439         for (i = 0; i < ARRAY_SIZE(pdefault_rules->rules_create_list); i++) {
1440                 int ret;
1441                 union ib_flow_spec ib_spec;
1442                 switch (pdefault_rules->rules_create_list[i]) {
1443                 case 0:
1444                         /* no rule */
1445                         continue;
1446                 case IB_FLOW_SPEC_IB:
1447                         ib_spec.type = IB_FLOW_SPEC_IB;
1448                         ib_spec.size = sizeof(struct ib_flow_spec_ib);
1449
1450                         break;
1451                 default:
1452                         /* invalid rule */
1453                         return -EINVAL;
1454                 }
1455                 /* We must put empty rule, qpn is being ignored */
1456                 ret = parse_flow_attr(mdev->dev, 0, &ib_spec,
1457                                       mlx4_spec);
1458                 if (ret < 0) {
1459                         pr_info("invalid parsing\n");
1460                         return -EINVAL;
1461                 }
1462
1463                 mlx4_spec = (void *)mlx4_spec + ret;
1464                 size += ret;
1465         }
1466         return size;
1467 }
1468
1469 static int __mlx4_ib_create_flow(struct ib_qp *qp, struct ib_flow_attr *flow_attr,
1470                           int domain,
1471                           enum mlx4_net_trans_promisc_mode flow_type,
1472                           u64 *reg_id)
1473 {
1474         int ret, i;
1475         int size = 0;
1476         void *ib_flow;
1477         struct mlx4_ib_dev *mdev = to_mdev(qp->device);
1478         struct mlx4_cmd_mailbox *mailbox;
1479         struct mlx4_net_trans_rule_hw_ctrl *ctrl;
1480         int default_flow;
1481
1482         static const u16 __mlx4_domain[] = {
1483                 [IB_FLOW_DOMAIN_USER] = MLX4_DOMAIN_UVERBS,
1484                 [IB_FLOW_DOMAIN_ETHTOOL] = MLX4_DOMAIN_ETHTOOL,
1485                 [IB_FLOW_DOMAIN_RFS] = MLX4_DOMAIN_RFS,
1486                 [IB_FLOW_DOMAIN_NIC] = MLX4_DOMAIN_NIC,
1487         };
1488
1489         if (flow_attr->priority > MLX4_IB_FLOW_MAX_PRIO) {
1490                 pr_err("Invalid priority value %d\n", flow_attr->priority);
1491                 return -EINVAL;
1492         }
1493
1494         if (domain >= IB_FLOW_DOMAIN_NUM) {
1495                 pr_err("Invalid domain value %d\n", domain);
1496                 return -EINVAL;
1497         }
1498
1499         if (mlx4_map_sw_to_hw_steering_mode(mdev->dev, flow_type) < 0)
1500                 return -EINVAL;
1501
1502         mailbox = mlx4_alloc_cmd_mailbox(mdev->dev);
1503         if (IS_ERR(mailbox))
1504                 return PTR_ERR(mailbox);
1505         ctrl = mailbox->buf;
1506
1507         ctrl->prio = cpu_to_be16(__mlx4_domain[domain] |
1508                                  flow_attr->priority);
1509         ctrl->type = mlx4_map_sw_to_hw_steering_mode(mdev->dev, flow_type);
1510         ctrl->port = flow_attr->port;
1511         ctrl->qpn = cpu_to_be32(qp->qp_num);
1512
1513         ib_flow = flow_attr + 1;
1514         size += sizeof(struct mlx4_net_trans_rule_hw_ctrl);
1515         /* Add default flows */
1516         default_flow = __mlx4_ib_default_rules_match(qp, flow_attr);
1517         if (default_flow >= 0) {
1518                 ret = __mlx4_ib_create_default_rules(
1519                                 mdev, qp, default_table + default_flow,
1520                                 mailbox->buf + size);
1521                 if (ret < 0) {
1522                         mlx4_free_cmd_mailbox(mdev->dev, mailbox);
1523                         return -EINVAL;
1524                 }
1525                 size += ret;
1526         }
1527         for (i = 0; i < flow_attr->num_of_specs; i++) {
1528                 ret = parse_flow_attr(mdev->dev, qp->qp_num, ib_flow,
1529                                       mailbox->buf + size);
1530                 if (ret < 0) {
1531                         mlx4_free_cmd_mailbox(mdev->dev, mailbox);
1532                         return -EINVAL;
1533                 }
1534                 ib_flow += ((union ib_flow_spec *) ib_flow)->size;
1535                 size += ret;
1536         }
1537
1538         ret = mlx4_cmd_imm(mdev->dev, mailbox->dma, reg_id, size >> 2, 0,
1539                            MLX4_QP_FLOW_STEERING_ATTACH, MLX4_CMD_TIME_CLASS_A,
1540                            MLX4_CMD_WRAPPED);
1541         if (ret == -ENOMEM)
1542                 pr_err("mcg table is full. Fail to register network rule.\n");
1543         else if (ret == -ENXIO)
1544                 pr_err("Device managed flow steering is disabled. Fail to register network rule.\n");
1545         else if (ret)
1546                 pr_err("Invalid argument. Fail to register network rule.\n");
1547
1548         mlx4_free_cmd_mailbox(mdev->dev, mailbox);
1549         return ret;
1550 }
1551
1552 static int __mlx4_ib_destroy_flow(struct mlx4_dev *dev, u64 reg_id)
1553 {
1554         int err;
1555         err = mlx4_cmd(dev, reg_id, 0, 0,
1556                        MLX4_QP_FLOW_STEERING_DETACH, MLX4_CMD_TIME_CLASS_A,
1557                        MLX4_CMD_WRAPPED);
1558         if (err)
1559                 pr_err("Fail to detach network rule. registration id = 0x%llx\n",
1560                        (long long)reg_id);
1561         return err;
1562 }
1563
1564 static int mlx4_ib_tunnel_steer_add(struct ib_qp *qp, struct ib_flow_attr *flow_attr,
1565                                     u64 *reg_id)
1566 {
1567         void *ib_flow;
1568         union ib_flow_spec *ib_spec;
1569         struct mlx4_dev *dev = to_mdev(qp->device)->dev;
1570         int err = 0;
1571
1572         if (dev->caps.tunnel_offload_mode != MLX4_TUNNEL_OFFLOAD_MODE_VXLAN ||
1573             dev->caps.dmfs_high_steer_mode == MLX4_STEERING_DMFS_A0_STATIC)
1574                 return 0; /* do nothing */
1575
1576         ib_flow = flow_attr + 1;
1577         ib_spec = (union ib_flow_spec *)ib_flow;
1578
1579         if (ib_spec->type !=  IB_FLOW_SPEC_ETH || flow_attr->num_of_specs != 1)
1580                 return 0; /* do nothing */
1581
1582         err = mlx4_tunnel_steer_add(to_mdev(qp->device)->dev, ib_spec->eth.val.dst_mac,
1583                                     flow_attr->port, qp->qp_num,
1584                                     MLX4_DOMAIN_UVERBS | (flow_attr->priority & 0xff),
1585                                     reg_id);
1586         return err;
1587 }
1588
1589 static int mlx4_ib_add_dont_trap_rule(struct mlx4_dev *dev,
1590                                       struct ib_flow_attr *flow_attr,
1591                                       enum mlx4_net_trans_promisc_mode *type)
1592 {
1593         int err = 0;
1594
1595         if (!(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_DMFS_UC_MC_SNIFFER) ||
1596             (dev->caps.dmfs_high_steer_mode == MLX4_STEERING_DMFS_A0_STATIC) ||
1597             (flow_attr->num_of_specs > 1) || (flow_attr->priority != 0)) {
1598                 return -EOPNOTSUPP;
1599         }
1600
1601         if (flow_attr->num_of_specs == 0) {
1602                 type[0] = MLX4_FS_MC_SNIFFER;
1603                 type[1] = MLX4_FS_UC_SNIFFER;
1604         } else {
1605                 union ib_flow_spec *ib_spec;
1606
1607                 ib_spec = (union ib_flow_spec *)(flow_attr + 1);
1608                 if (ib_spec->type !=  IB_FLOW_SPEC_ETH)
1609                         return -EINVAL;
1610
1611                 /* if all is zero than MC and UC */
1612                 if (is_zero_ether_addr(ib_spec->eth.mask.dst_mac)) {
1613                         type[0] = MLX4_FS_MC_SNIFFER;
1614                         type[1] = MLX4_FS_UC_SNIFFER;
1615                 } else {
1616                         u8 mac[ETH_ALEN] = {ib_spec->eth.mask.dst_mac[0] ^ 0x01,
1617                                             ib_spec->eth.mask.dst_mac[1],
1618                                             ib_spec->eth.mask.dst_mac[2],
1619                                             ib_spec->eth.mask.dst_mac[3],
1620                                             ib_spec->eth.mask.dst_mac[4],
1621                                             ib_spec->eth.mask.dst_mac[5]};
1622
1623                         /* Above xor was only on MC bit, non empty mask is valid
1624                          * only if this bit is set and rest are zero.
1625                          */
1626                         if (!is_zero_ether_addr(&mac[0]))
1627                                 return -EINVAL;
1628
1629                         if (is_multicast_ether_addr(ib_spec->eth.val.dst_mac))
1630                                 type[0] = MLX4_FS_MC_SNIFFER;
1631                         else
1632                                 type[0] = MLX4_FS_UC_SNIFFER;
1633                 }
1634         }
1635
1636         return err;
1637 }
1638
1639 static struct ib_flow *mlx4_ib_create_flow(struct ib_qp *qp,
1640                                     struct ib_flow_attr *flow_attr,
1641                                     int domain, struct ib_udata *udata)
1642 {
1643         int err = 0, i = 0, j = 0;
1644         struct mlx4_ib_flow *mflow;
1645         enum mlx4_net_trans_promisc_mode type[2];
1646         struct mlx4_dev *dev = (to_mdev(qp->device))->dev;
1647         int is_bonded = mlx4_is_bonded(dev);
1648
1649         if (flow_attr->port < 1 || flow_attr->port > qp->device->phys_port_cnt)
1650                 return ERR_PTR(-EINVAL);
1651
1652         if ((flow_attr->flags & IB_FLOW_ATTR_FLAGS_DONT_TRAP) &&
1653             (flow_attr->type != IB_FLOW_ATTR_NORMAL))
1654                 return ERR_PTR(-EOPNOTSUPP);
1655
1656         if (udata &&
1657             udata->inlen && !ib_is_udata_cleared(udata, 0, udata->inlen))
1658                 return ERR_PTR(-EOPNOTSUPP);
1659
1660         memset(type, 0, sizeof(type));
1661
1662         mflow = kzalloc(sizeof(*mflow), GFP_KERNEL);
1663         if (!mflow) {
1664                 err = -ENOMEM;
1665                 goto err_free;
1666         }
1667
1668         switch (flow_attr->type) {
1669         case IB_FLOW_ATTR_NORMAL:
1670                 /* If dont trap flag (continue match) is set, under specific
1671                  * condition traffic be replicated to given qp,
1672                  * without stealing it
1673                  */
1674                 if (unlikely(flow_attr->flags & IB_FLOW_ATTR_FLAGS_DONT_TRAP)) {
1675                         err = mlx4_ib_add_dont_trap_rule(dev,
1676                                                          flow_attr,
1677                                                          type);
1678                         if (err)
1679                                 goto err_free;
1680                 } else {
1681                         type[0] = MLX4_FS_REGULAR;
1682                 }
1683                 break;
1684
1685         case IB_FLOW_ATTR_ALL_DEFAULT:
1686                 type[0] = MLX4_FS_ALL_DEFAULT;
1687                 break;
1688
1689         case IB_FLOW_ATTR_MC_DEFAULT:
1690                 type[0] = MLX4_FS_MC_DEFAULT;
1691                 break;
1692
1693         case IB_FLOW_ATTR_SNIFFER:
1694                 type[0] = MLX4_FS_MIRROR_RX_PORT;
1695                 type[1] = MLX4_FS_MIRROR_SX_PORT;
1696                 break;
1697
1698         default:
1699                 err = -EINVAL;
1700                 goto err_free;
1701         }
1702
1703         while (i < ARRAY_SIZE(type) && type[i]) {
1704                 err = __mlx4_ib_create_flow(qp, flow_attr, domain, type[i],
1705                                             &mflow->reg_id[i].id);
1706                 if (err)
1707                         goto err_create_flow;
1708                 if (is_bonded) {
1709                         /* Application always sees one port so the mirror rule
1710                          * must be on port #2
1711                          */
1712                         flow_attr->port = 2;
1713                         err = __mlx4_ib_create_flow(qp, flow_attr,
1714                                                     domain, type[j],
1715                                                     &mflow->reg_id[j].mirror);
1716                         flow_attr->port = 1;
1717                         if (err)
1718                                 goto err_create_flow;
1719                         j++;
1720                 }
1721
1722                 i++;
1723         }
1724
1725         if (i < ARRAY_SIZE(type) && flow_attr->type == IB_FLOW_ATTR_NORMAL) {
1726                 err = mlx4_ib_tunnel_steer_add(qp, flow_attr,
1727                                                &mflow->reg_id[i].id);
1728                 if (err)
1729                         goto err_create_flow;
1730
1731                 if (is_bonded) {
1732                         flow_attr->port = 2;
1733                         err = mlx4_ib_tunnel_steer_add(qp, flow_attr,
1734                                                        &mflow->reg_id[j].mirror);
1735                         flow_attr->port = 1;
1736                         if (err)
1737                                 goto err_create_flow;
1738                         j++;
1739                 }
1740                 /* function to create mirror rule */
1741                 i++;
1742         }
1743
1744         return &mflow->ibflow;
1745
1746 err_create_flow:
1747         while (i) {
1748                 (void)__mlx4_ib_destroy_flow(to_mdev(qp->device)->dev,
1749                                              mflow->reg_id[i].id);
1750                 i--;
1751         }
1752
1753         while (j) {
1754                 (void)__mlx4_ib_destroy_flow(to_mdev(qp->device)->dev,
1755                                              mflow->reg_id[j].mirror);
1756                 j--;
1757         }
1758 err_free:
1759         kfree(mflow);
1760         return ERR_PTR(err);
1761 }
1762
1763 static int mlx4_ib_destroy_flow(struct ib_flow *flow_id)
1764 {
1765         int err, ret = 0;
1766         int i = 0;
1767         struct mlx4_ib_dev *mdev = to_mdev(flow_id->qp->device);
1768         struct mlx4_ib_flow *mflow = to_mflow(flow_id);
1769
1770         while (i < ARRAY_SIZE(mflow->reg_id) && mflow->reg_id[i].id) {
1771                 err = __mlx4_ib_destroy_flow(mdev->dev, mflow->reg_id[i].id);
1772                 if (err)
1773                         ret = err;
1774                 if (mflow->reg_id[i].mirror) {
1775                         err = __mlx4_ib_destroy_flow(mdev->dev,
1776                                                      mflow->reg_id[i].mirror);
1777                         if (err)
1778                                 ret = err;
1779                 }
1780                 i++;
1781         }
1782
1783         kfree(mflow);
1784         return ret;
1785 }
1786
1787 static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
1788 {
1789         int err;
1790         struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
1791         struct mlx4_dev *dev = mdev->dev;
1792         struct mlx4_ib_qp *mqp = to_mqp(ibqp);
1793         struct mlx4_ib_steering *ib_steering = NULL;
1794         enum mlx4_protocol prot = MLX4_PROT_IB_IPV6;
1795         struct mlx4_flow_reg_id reg_id;
1796
1797         if (mdev->dev->caps.steering_mode ==
1798             MLX4_STEERING_MODE_DEVICE_MANAGED) {
1799                 ib_steering = kmalloc(sizeof(*ib_steering), GFP_KERNEL);
1800                 if (!ib_steering)
1801                         return -ENOMEM;
1802         }
1803
1804         err = mlx4_multicast_attach(mdev->dev, &mqp->mqp, gid->raw, mqp->port,
1805                                     !!(mqp->flags &
1806                                        MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK),
1807                                     prot, &reg_id.id);
1808         if (err) {
1809                 pr_err("multicast attach op failed, err %d\n", err);
1810                 goto err_malloc;
1811         }
1812
1813         reg_id.mirror = 0;
1814         if (mlx4_is_bonded(dev)) {
1815                 err = mlx4_multicast_attach(mdev->dev, &mqp->mqp, gid->raw,
1816                                             (mqp->port == 1) ? 2 : 1,
1817                                             !!(mqp->flags &
1818                                             MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK),
1819                                             prot, &reg_id.mirror);
1820                 if (err)
1821                         goto err_add;
1822         }
1823
1824         err = add_gid_entry(ibqp, gid);
1825         if (err)
1826                 goto err_add;
1827
1828         if (ib_steering) {
1829                 memcpy(ib_steering->gid.raw, gid->raw, 16);
1830                 ib_steering->reg_id = reg_id;
1831                 mutex_lock(&mqp->mutex);
1832                 list_add(&ib_steering->list, &mqp->steering_rules);
1833                 mutex_unlock(&mqp->mutex);
1834         }
1835         return 0;
1836
1837 err_add:
1838         mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw,
1839                               prot, reg_id.id);
1840         if (reg_id.mirror)
1841                 mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw,
1842                                       prot, reg_id.mirror);
1843 err_malloc:
1844         kfree(ib_steering);
1845
1846         return err;
1847 }
1848
1849 static struct mlx4_ib_gid_entry *find_gid_entry(struct mlx4_ib_qp *qp, u8 *raw)
1850 {
1851         struct mlx4_ib_gid_entry *ge;
1852         struct mlx4_ib_gid_entry *tmp;
1853         struct mlx4_ib_gid_entry *ret = NULL;
1854
1855         list_for_each_entry_safe(ge, tmp, &qp->gid_list, list) {
1856                 if (!memcmp(raw, ge->gid.raw, 16)) {
1857                         ret = ge;
1858                         break;
1859                 }
1860         }
1861
1862         return ret;
1863 }
1864
1865 static int mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
1866 {
1867         int err;
1868         struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
1869         struct mlx4_dev *dev = mdev->dev;
1870         struct mlx4_ib_qp *mqp = to_mqp(ibqp);
1871         struct ifnet *ndev;
1872         struct mlx4_ib_gid_entry *ge;
1873         struct mlx4_flow_reg_id reg_id = {0, 0};
1874         enum mlx4_protocol prot =  MLX4_PROT_IB_IPV6;
1875
1876         if (mdev->dev->caps.steering_mode ==
1877             MLX4_STEERING_MODE_DEVICE_MANAGED) {
1878                 struct mlx4_ib_steering *ib_steering;
1879
1880                 mutex_lock(&mqp->mutex);
1881                 list_for_each_entry(ib_steering, &mqp->steering_rules, list) {
1882                         if (!memcmp(ib_steering->gid.raw, gid->raw, 16)) {
1883                                 list_del(&ib_steering->list);
1884                                 break;
1885                         }
1886                 }
1887                 mutex_unlock(&mqp->mutex);
1888                 if (&ib_steering->list == &mqp->steering_rules) {
1889                         pr_err("Couldn't find reg_id for mgid. Steering rule is left attached\n");
1890                         return -EINVAL;
1891                 }
1892                 reg_id = ib_steering->reg_id;
1893                 kfree(ib_steering);
1894         }
1895
1896         err = mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw,
1897                                     prot, reg_id.id);
1898         if (err)
1899                 return err;
1900
1901         if (mlx4_is_bonded(dev)) {
1902                 err = mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw,
1903                                             prot, reg_id.mirror);
1904                 if (err)
1905                         return err;
1906         }
1907
1908         mutex_lock(&mqp->mutex);
1909         ge = find_gid_entry(mqp, gid->raw);
1910         if (ge) {
1911                 spin_lock_bh(&mdev->iboe.lock);
1912                 ndev = ge->added ? mdev->iboe.netdevs[ge->port - 1] : NULL;
1913                 if (ndev)
1914                         if_ref(ndev);
1915                 spin_unlock_bh(&mdev->iboe.lock);
1916                 if (ndev)
1917                         if_rele(ndev);
1918                 list_del(&ge->list);
1919                 kfree(ge);
1920         } else
1921                 pr_warn("could not find mgid entry\n");
1922
1923         mutex_unlock(&mqp->mutex);
1924
1925         return 0;
1926 }
1927
1928 static int init_node_data(struct mlx4_ib_dev *dev)
1929 {
1930         struct ib_smp *in_mad  = NULL;
1931         struct ib_smp *out_mad = NULL;
1932         int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
1933         int err = -ENOMEM;
1934
1935         in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
1936         out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
1937         if (!in_mad || !out_mad)
1938                 goto out;
1939
1940         init_query_mad(in_mad);
1941         in_mad->attr_id = IB_SMP_ATTR_NODE_DESC;
1942         if (mlx4_is_master(dev->dev))
1943                 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
1944
1945         err = mlx4_MAD_IFC(dev, mad_ifc_flags, 1, NULL, NULL, in_mad, out_mad);
1946         if (err)
1947                 goto out;
1948
1949         memcpy(dev->ib_dev.node_desc, out_mad->data, IB_DEVICE_NODE_DESC_MAX);
1950
1951         in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
1952
1953         err = mlx4_MAD_IFC(dev, mad_ifc_flags, 1, NULL, NULL, in_mad, out_mad);
1954         if (err)
1955                 goto out;
1956
1957         dev->dev->rev_id = be32_to_cpup((__be32 *) (out_mad->data + 32));
1958         memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8);
1959
1960 out:
1961         kfree(in_mad);
1962         kfree(out_mad);
1963         return err;
1964 }
1965
1966 static ssize_t show_hca(struct device *device, struct device_attribute *attr,
1967                         char *buf)
1968 {
1969         struct mlx4_ib_dev *dev =
1970                 container_of(device, struct mlx4_ib_dev, ib_dev.dev);
1971         return sprintf(buf, "MT%d\n", dev->dev->persist->pdev->device);
1972 }
1973
1974 static ssize_t show_rev(struct device *device, struct device_attribute *attr,
1975                         char *buf)
1976 {
1977         struct mlx4_ib_dev *dev =
1978                 container_of(device, struct mlx4_ib_dev, ib_dev.dev);
1979         return sprintf(buf, "%x\n", dev->dev->rev_id);
1980 }
1981
1982 static ssize_t show_board(struct device *device, struct device_attribute *attr,
1983                           char *buf)
1984 {
1985         struct mlx4_ib_dev *dev =
1986                 container_of(device, struct mlx4_ib_dev, ib_dev.dev);
1987         return sprintf(buf, "%.*s\n", MLX4_BOARD_ID_LEN,
1988                        dev->dev->board_id);
1989 }
1990
1991 static DEVICE_ATTR(hw_rev,   S_IRUGO, show_rev,    NULL);
1992 static DEVICE_ATTR(hca_type, S_IRUGO, show_hca,    NULL);
1993 static DEVICE_ATTR(board_id, S_IRUGO, show_board,  NULL);
1994
1995 static struct device_attribute *mlx4_class_attributes[] = {
1996         &dev_attr_hw_rev,
1997         &dev_attr_hca_type,
1998         &dev_attr_board_id
1999 };
2000
2001 struct diag_counter {
2002         const char *name;
2003         u32 offset;
2004 };
2005
2006 #define DIAG_COUNTER(_name, _offset)                    \
2007         { .name = #_name, .offset = _offset }
2008
2009 static const struct diag_counter diag_basic[] = {
2010         DIAG_COUNTER(rq_num_lle, 0x00),
2011         DIAG_COUNTER(sq_num_lle, 0x04),
2012         DIAG_COUNTER(rq_num_lqpoe, 0x08),
2013         DIAG_COUNTER(sq_num_lqpoe, 0x0C),
2014         DIAG_COUNTER(rq_num_lpe, 0x18),
2015         DIAG_COUNTER(sq_num_lpe, 0x1C),
2016         DIAG_COUNTER(rq_num_wrfe, 0x20),
2017         DIAG_COUNTER(sq_num_wrfe, 0x24),
2018         DIAG_COUNTER(sq_num_mwbe, 0x2C),
2019         DIAG_COUNTER(sq_num_bre, 0x34),
2020         DIAG_COUNTER(sq_num_rire, 0x44),
2021         DIAG_COUNTER(rq_num_rire, 0x48),
2022         DIAG_COUNTER(sq_num_rae, 0x4C),
2023         DIAG_COUNTER(rq_num_rae, 0x50),
2024         DIAG_COUNTER(sq_num_roe, 0x54),
2025         DIAG_COUNTER(sq_num_tree, 0x5C),
2026         DIAG_COUNTER(sq_num_rree, 0x64),
2027         DIAG_COUNTER(rq_num_rnr, 0x68),
2028         DIAG_COUNTER(sq_num_rnr, 0x6C),
2029         DIAG_COUNTER(rq_num_oos, 0x100),
2030         DIAG_COUNTER(sq_num_oos, 0x104),
2031 };
2032
2033 static const struct diag_counter diag_ext[] = {
2034         DIAG_COUNTER(rq_num_dup, 0x130),
2035         DIAG_COUNTER(sq_num_to, 0x134),
2036 };
2037
2038 static const struct diag_counter diag_device_only[] = {
2039         DIAG_COUNTER(num_cqovf, 0x1A0),
2040         DIAG_COUNTER(rq_num_udsdprd, 0x118),
2041 };
2042
2043 static struct rdma_hw_stats *mlx4_ib_alloc_hw_stats(struct ib_device *ibdev,
2044                                                     u8 port_num)
2045 {
2046         struct mlx4_ib_dev *dev = to_mdev(ibdev);
2047         struct mlx4_ib_diag_counters *diag = dev->diag_counters;
2048
2049         if (!diag[!!port_num].name)
2050                 return NULL;
2051
2052         return rdma_alloc_hw_stats_struct(diag[!!port_num].name,
2053                                           diag[!!port_num].num_counters,
2054                                           RDMA_HW_STATS_DEFAULT_LIFESPAN);
2055 }
2056
2057 static int mlx4_ib_get_hw_stats(struct ib_device *ibdev,
2058                                 struct rdma_hw_stats *stats,
2059                                 u8 port, int index)
2060 {
2061         struct mlx4_ib_dev *dev = to_mdev(ibdev);
2062         struct mlx4_ib_diag_counters *diag = dev->diag_counters;
2063         u32 hw_value[ARRAY_SIZE(diag_device_only) +
2064                 ARRAY_SIZE(diag_ext) + ARRAY_SIZE(diag_basic)] = {};
2065         int ret;
2066         int i;
2067
2068         ret = mlx4_query_diag_counters(dev->dev,
2069                                        MLX4_OP_MOD_QUERY_TRANSPORT_CI_ERRORS,
2070                                        diag[!!port].offset, hw_value,
2071                                        diag[!!port].num_counters, port);
2072
2073         if (ret)
2074                 return ret;
2075
2076         for (i = 0; i < diag[!!port].num_counters; i++)
2077                 stats->value[i] = hw_value[i];
2078
2079         return diag[!!port].num_counters;
2080 }
2081
2082 static int __mlx4_ib_alloc_diag_counters(struct mlx4_ib_dev *ibdev,
2083                                          const char ***name,
2084                                          u32 **offset,
2085                                          u32 *num,
2086                                          bool port)
2087 {
2088         u32 num_counters;
2089
2090         num_counters = ARRAY_SIZE(diag_basic);
2091
2092         if (ibdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_DIAG_PER_PORT)
2093                 num_counters += ARRAY_SIZE(diag_ext);
2094
2095         if (!port)
2096                 num_counters += ARRAY_SIZE(diag_device_only);
2097
2098         *name = kcalloc(num_counters, sizeof(**name), GFP_KERNEL);
2099         if (!*name)
2100                 return -ENOMEM;
2101
2102         *offset = kcalloc(num_counters, sizeof(**offset), GFP_KERNEL);
2103         if (!*offset)
2104                 goto err_name;
2105
2106         *num = num_counters;
2107
2108         return 0;
2109
2110 err_name:
2111         kfree(*name);
2112         return -ENOMEM;
2113 }
2114
2115 static void mlx4_ib_fill_diag_counters(struct mlx4_ib_dev *ibdev,
2116                                        const char **name,
2117                                        u32 *offset,
2118                                        bool port)
2119 {
2120         int i;
2121         int j;
2122
2123         for (i = 0, j = 0; i < ARRAY_SIZE(diag_basic); i++, j++) {
2124                 name[i] = diag_basic[i].name;
2125                 offset[i] = diag_basic[i].offset;
2126         }
2127
2128         if (ibdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_DIAG_PER_PORT) {
2129                 for (i = 0; i < ARRAY_SIZE(diag_ext); i++, j++) {
2130                         name[j] = diag_ext[i].name;
2131                         offset[j] = diag_ext[i].offset;
2132                 }
2133         }
2134
2135         if (!port) {
2136                 for (i = 0; i < ARRAY_SIZE(diag_device_only); i++, j++) {
2137                         name[j] = diag_device_only[i].name;
2138                         offset[j] = diag_device_only[i].offset;
2139                 }
2140         }
2141 }
2142
2143 static int mlx4_ib_alloc_diag_counters(struct mlx4_ib_dev *ibdev)
2144 {
2145         struct mlx4_ib_diag_counters *diag = ibdev->diag_counters;
2146         int i;
2147         int ret;
2148         bool per_port = !!(ibdev->dev->caps.flags2 &
2149                 MLX4_DEV_CAP_FLAG2_DIAG_PER_PORT);
2150
2151         if (mlx4_is_slave(ibdev->dev))
2152                 return 0;
2153
2154         for (i = 0; i < MLX4_DIAG_COUNTERS_TYPES; i++) {
2155                 /* i == 1 means we are building port counters */
2156                 if (i && !per_port)
2157                         continue;
2158
2159                 ret = __mlx4_ib_alloc_diag_counters(ibdev, &diag[i].name,
2160                                                     &diag[i].offset,
2161                                                     &diag[i].num_counters, i);
2162                 if (ret)
2163                         goto err_alloc;
2164
2165                 mlx4_ib_fill_diag_counters(ibdev, diag[i].name,
2166                                            diag[i].offset, i);
2167         }
2168
2169         ibdev->ib_dev.get_hw_stats      = mlx4_ib_get_hw_stats;
2170         ibdev->ib_dev.alloc_hw_stats    = mlx4_ib_alloc_hw_stats;
2171
2172         return 0;
2173
2174 err_alloc:
2175         if (i) {
2176                 kfree(diag[i - 1].name);
2177                 kfree(diag[i - 1].offset);
2178         }
2179
2180         return ret;
2181 }
2182
2183 static void mlx4_ib_diag_cleanup(struct mlx4_ib_dev *ibdev)
2184 {
2185         int i;
2186
2187         for (i = 0; i < MLX4_DIAG_COUNTERS_TYPES; i++) {
2188                 kfree(ibdev->diag_counters[i].offset);
2189                 kfree(ibdev->diag_counters[i].name);
2190         }
2191 }
2192
2193 #define MLX4_IB_INVALID_MAC     ((u64)-1)
2194 static void mlx4_ib_update_qps(struct mlx4_ib_dev *ibdev,
2195                                struct ifnet *dev,
2196                                int port)
2197 {
2198         u64 new_smac = 0;
2199         u64 release_mac = MLX4_IB_INVALID_MAC;
2200         struct mlx4_ib_qp *qp;
2201
2202         new_smac = mlx4_mac_to_u64(IF_LLADDR(dev));
2203
2204         atomic64_set(&ibdev->iboe.mac[port - 1], new_smac);
2205
2206         /* no need for update QP1 and mac registration in non-SRIOV */
2207         if (!mlx4_is_mfunc(ibdev->dev))
2208                 return;
2209
2210         mutex_lock(&ibdev->qp1_proxy_lock[port - 1]);
2211         qp = ibdev->qp1_proxy[port - 1];
2212         if (qp) {
2213                 int new_smac_index;
2214                 u64 old_smac;
2215                 struct mlx4_update_qp_params update_params;
2216
2217                 mutex_lock(&qp->mutex);
2218                 old_smac = qp->pri.smac;
2219                 if (new_smac == old_smac)
2220                         goto unlock;
2221
2222                 new_smac_index = mlx4_register_mac(ibdev->dev, port, new_smac);
2223
2224                 if (new_smac_index < 0)
2225                         goto unlock;
2226
2227                 update_params.smac_index = new_smac_index;
2228                 if (mlx4_update_qp(ibdev->dev, qp->mqp.qpn, MLX4_UPDATE_QP_SMAC,
2229                                    &update_params)) {
2230                         release_mac = new_smac;
2231                         goto unlock;
2232                 }
2233                 /* if old port was zero, no mac was yet registered for this QP */
2234                 if (qp->pri.smac_port)
2235                         release_mac = old_smac;
2236                 qp->pri.smac = new_smac;
2237                 qp->pri.smac_port = port;
2238                 qp->pri.smac_index = new_smac_index;
2239         }
2240
2241 unlock:
2242         if (release_mac != MLX4_IB_INVALID_MAC)
2243                 mlx4_unregister_mac(ibdev->dev, port, release_mac);
2244         if (qp)
2245                 mutex_unlock(&qp->mutex);
2246         mutex_unlock(&ibdev->qp1_proxy_lock[port - 1]);
2247 }
2248
2249 static void mlx4_ib_scan_netdevs(struct mlx4_ib_dev *ibdev,
2250                                  struct ifnet *dev,
2251                                  unsigned long event)
2252
2253 {
2254         struct mlx4_ib_iboe *iboe;
2255         int update_qps_port = -1;
2256         int port;
2257
2258         iboe = &ibdev->iboe;
2259
2260         spin_lock_bh(&iboe->lock);
2261         mlx4_foreach_ib_transport_port(port, ibdev->dev) {
2262
2263                 iboe->netdevs[port - 1] =
2264                         mlx4_get_protocol_dev(ibdev->dev, MLX4_PROT_ETH, port);
2265
2266                 if (dev == iboe->netdevs[port - 1] &&
2267                     (event == NETDEV_CHANGEADDR || event == NETDEV_REGISTER ||
2268                      event == NETDEV_UP || event == NETDEV_CHANGE))
2269                         update_qps_port = port;
2270
2271         }
2272         spin_unlock_bh(&iboe->lock);
2273
2274         if (update_qps_port > 0)
2275                 mlx4_ib_update_qps(ibdev, dev, update_qps_port);
2276 }
2277
2278 static int mlx4_ib_netdev_event(struct notifier_block *this,
2279                                 unsigned long event, void *ptr)
2280 {
2281         struct ifnet *dev = netdev_notifier_info_to_ifp(ptr);
2282         struct mlx4_ib_dev *ibdev;
2283
2284         if (dev->if_vnet != &init_net)
2285                 return NOTIFY_DONE;
2286
2287         ibdev = container_of(this, struct mlx4_ib_dev, iboe.nb);
2288         mlx4_ib_scan_netdevs(ibdev, dev, event);
2289
2290         return NOTIFY_DONE;
2291 }
2292
2293 static void init_pkeys(struct mlx4_ib_dev *ibdev)
2294 {
2295         int port;
2296         int slave;
2297         int i;
2298
2299         if (mlx4_is_master(ibdev->dev)) {
2300                 for (slave = 0; slave <= ibdev->dev->persist->num_vfs;
2301                      ++slave) {
2302                         for (port = 1; port <= ibdev->dev->caps.num_ports; ++port) {
2303                                 for (i = 0;
2304                                      i < ibdev->dev->phys_caps.pkey_phys_table_len[port];
2305                                      ++i) {
2306                                         ibdev->pkeys.virt2phys_pkey[slave][port - 1][i] =
2307                                         /* master has the identity virt2phys pkey mapping */
2308                                                 (slave == mlx4_master_func_num(ibdev->dev) || !i) ? i :
2309                                                         ibdev->dev->phys_caps.pkey_phys_table_len[port] - 1;
2310                                         mlx4_sync_pkey_table(ibdev->dev, slave, port, i,
2311                                                              ibdev->pkeys.virt2phys_pkey[slave][port - 1][i]);
2312                                 }
2313                         }
2314                 }
2315                 /* initialize pkey cache */
2316                 for (port = 1; port <= ibdev->dev->caps.num_ports; ++port) {
2317                         for (i = 0;
2318                              i < ibdev->dev->phys_caps.pkey_phys_table_len[port];
2319                              ++i)
2320                                 ibdev->pkeys.phys_pkey_cache[port-1][i] =
2321                                         (i) ? 0 : 0xFFFF;
2322                 }
2323         }
2324 }
2325
2326 static void mlx4_ib_alloc_eqs(struct mlx4_dev *dev, struct mlx4_ib_dev *ibdev)
2327 {
2328         int i, j, eq = 0, total_eqs = 0;
2329
2330         ibdev->eq_table = kcalloc(dev->caps.num_comp_vectors,
2331                                   sizeof(ibdev->eq_table[0]), GFP_KERNEL);
2332         if (!ibdev->eq_table)
2333                 return;
2334
2335         for (i = 1; i <= dev->caps.num_ports; i++) {
2336                 for (j = 0; j < mlx4_get_eqs_per_port(dev, i);
2337                      j++, total_eqs++) {
2338                         if (i > 1 &&  mlx4_is_eq_shared(dev, total_eqs))
2339                                 continue;
2340                         ibdev->eq_table[eq] = total_eqs;
2341                         if (!mlx4_assign_eq(dev, i,
2342                                             &ibdev->eq_table[eq]))
2343                                 eq++;
2344                         else
2345                                 ibdev->eq_table[eq] = -1;
2346                 }
2347         }
2348
2349         for (i = eq; i < dev->caps.num_comp_vectors;
2350              ibdev->eq_table[i++] = -1)
2351                 ;
2352
2353         /* Advertise the new number of EQs to clients */
2354         ibdev->ib_dev.num_comp_vectors = eq;
2355 }
2356
2357 static void mlx4_ib_free_eqs(struct mlx4_dev *dev, struct mlx4_ib_dev *ibdev)
2358 {
2359         int i;
2360         int total_eqs = ibdev->ib_dev.num_comp_vectors;
2361
2362         /* no eqs were allocated */
2363         if (!ibdev->eq_table)
2364                 return;
2365
2366         /* Reset the advertised EQ number */
2367         ibdev->ib_dev.num_comp_vectors = 0;
2368
2369         for (i = 0; i < total_eqs; i++)
2370                 mlx4_release_eq(dev, ibdev->eq_table[i]);
2371
2372         kfree(ibdev->eq_table);
2373         ibdev->eq_table = NULL;
2374 }
2375
2376 static int mlx4_port_immutable(struct ib_device *ibdev, u8 port_num,
2377                                struct ib_port_immutable *immutable)
2378 {
2379         struct ib_port_attr attr;
2380         struct mlx4_ib_dev *mdev = to_mdev(ibdev);
2381         int err;
2382
2383         err = mlx4_ib_query_port(ibdev, port_num, &attr);
2384         if (err)
2385                 return err;
2386
2387         immutable->pkey_tbl_len = attr.pkey_tbl_len;
2388         immutable->gid_tbl_len = attr.gid_tbl_len;
2389
2390         if (mlx4_ib_port_link_layer(ibdev, port_num) == IB_LINK_LAYER_INFINIBAND) {
2391                 immutable->core_cap_flags = RDMA_CORE_PORT_IBA_IB;
2392         } else {
2393                 if (mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_IBOE)
2394                         immutable->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE;
2395                 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ROCE_V1_V2)
2396                         immutable->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE |
2397                                 RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP;
2398         }
2399
2400         immutable->max_mad_size = IB_MGMT_MAD_SIZE;
2401
2402         return 0;
2403 }
2404
2405 static void get_fw_ver_str(struct ib_device *device, char *str,
2406                            size_t str_len)
2407 {
2408         struct mlx4_ib_dev *dev =
2409                 container_of(device, struct mlx4_ib_dev, ib_dev);
2410         snprintf(str, str_len, "%d.%d.%d",
2411                  (int) (dev->dev->caps.fw_ver >> 32),
2412                  (int) (dev->dev->caps.fw_ver >> 16) & 0xffff,
2413                  (int) dev->dev->caps.fw_ver & 0xffff);
2414 }
2415
2416 static void *mlx4_ib_add(struct mlx4_dev *dev)
2417 {
2418         struct mlx4_ib_dev *ibdev;
2419         int num_ports;
2420         int i, j;
2421         int err;
2422         struct mlx4_ib_iboe *iboe;
2423         int ib_num_ports = 0;
2424         int num_req_counters;
2425         int allocated;
2426         u32 counter_index;
2427         struct counter_index *new_counter_index = NULL;
2428
2429         pr_info_once("%s", mlx4_ib_version);
2430
2431         num_ports = 0;
2432         mlx4_foreach_ib_transport_port(i, dev)
2433                 num_ports++;
2434
2435         /* No point in registering a device with no ports... */
2436         if (num_ports == 0)
2437                 return NULL;
2438
2439         ibdev = (struct mlx4_ib_dev *) ib_alloc_device(sizeof *ibdev);
2440         if (!ibdev) {
2441                 dev_err(&dev->persist->pdev->dev,
2442                         "Device struct alloc failed\n");
2443                 return NULL;
2444         }
2445
2446         iboe = &ibdev->iboe;
2447
2448         if (mlx4_pd_alloc(dev, &ibdev->priv_pdn))
2449                 goto err_dealloc;
2450
2451         if (mlx4_uar_alloc(dev, &ibdev->priv_uar))
2452                 goto err_pd;
2453
2454         ibdev->uar_map = ioremap((phys_addr_t) ibdev->priv_uar.pfn << PAGE_SHIFT,
2455                                  PAGE_SIZE);
2456         if (!ibdev->uar_map)
2457                 goto err_uar;
2458         MLX4_INIT_DOORBELL_LOCK(&ibdev->uar_lock);
2459
2460         ibdev->dev = dev;
2461         ibdev->bond_next_port   = 0;
2462
2463         INIT_IB_DEVICE_OPS(&ibdev->ib_dev.ops, mlx4, MLX4);
2464         strlcpy(ibdev->ib_dev.name, "mlx4_%d", IB_DEVICE_NAME_MAX);
2465         ibdev->ib_dev.owner             = THIS_MODULE;
2466         ibdev->ib_dev.node_type         = RDMA_NODE_IB_CA;
2467         ibdev->ib_dev.local_dma_lkey    = dev->caps.reserved_lkey;
2468         ibdev->num_ports                = num_ports;
2469         ibdev->ib_dev.phys_port_cnt     = mlx4_is_bonded(dev) ?
2470                                                 1 : ibdev->num_ports;
2471         ibdev->ib_dev.num_comp_vectors  = dev->caps.num_comp_vectors;
2472         ibdev->ib_dev.dma_device        = &dev->persist->pdev->dev;
2473         ibdev->ib_dev.get_netdev        = mlx4_ib_get_netdev;
2474         ibdev->ib_dev.add_gid           = mlx4_ib_add_gid;
2475         ibdev->ib_dev.del_gid           = mlx4_ib_del_gid;
2476
2477         if (dev->caps.userspace_caps)
2478                 ibdev->ib_dev.uverbs_abi_ver = MLX4_IB_UVERBS_ABI_VERSION;
2479         else
2480                 ibdev->ib_dev.uverbs_abi_ver = MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION;
2481
2482         ibdev->ib_dev.uverbs_cmd_mask   =
2483                 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT)         |
2484                 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE)        |
2485                 (1ull << IB_USER_VERBS_CMD_QUERY_PORT)          |
2486                 (1ull << IB_USER_VERBS_CMD_ALLOC_PD)            |
2487                 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD)          |
2488                 (1ull << IB_USER_VERBS_CMD_REG_MR)              |
2489                 (1ull << IB_USER_VERBS_CMD_REREG_MR)            |
2490                 (1ull << IB_USER_VERBS_CMD_DEREG_MR)            |
2491                 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
2492                 (1ull << IB_USER_VERBS_CMD_CREATE_CQ)           |
2493                 (1ull << IB_USER_VERBS_CMD_RESIZE_CQ)           |
2494                 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ)          |
2495                 (1ull << IB_USER_VERBS_CMD_CREATE_QP)           |
2496                 (1ull << IB_USER_VERBS_CMD_MODIFY_QP)           |
2497                 (1ull << IB_USER_VERBS_CMD_QUERY_QP)            |
2498                 (1ull << IB_USER_VERBS_CMD_DESTROY_QP)          |
2499                 (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST)        |
2500                 (1ull << IB_USER_VERBS_CMD_DETACH_MCAST)        |
2501                 (1ull << IB_USER_VERBS_CMD_CREATE_SRQ)          |
2502                 (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ)          |
2503                 (1ull << IB_USER_VERBS_CMD_QUERY_SRQ)           |
2504                 (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ)         |
2505                 (1ull << IB_USER_VERBS_CMD_CREATE_XSRQ)         |
2506                 (1ull << IB_USER_VERBS_CMD_OPEN_QP);
2507
2508         ibdev->ib_dev.query_device      = mlx4_ib_query_device;
2509         ibdev->ib_dev.query_port        = mlx4_ib_query_port;
2510         ibdev->ib_dev.get_link_layer    = mlx4_ib_port_link_layer;
2511         ibdev->ib_dev.query_gid         = mlx4_ib_query_gid;
2512         ibdev->ib_dev.query_pkey        = mlx4_ib_query_pkey;
2513         ibdev->ib_dev.modify_device     = mlx4_ib_modify_device;
2514         ibdev->ib_dev.modify_port       = mlx4_ib_modify_port;
2515         ibdev->ib_dev.alloc_ucontext    = mlx4_ib_alloc_ucontext;
2516         ibdev->ib_dev.dealloc_ucontext  = mlx4_ib_dealloc_ucontext;
2517         ibdev->ib_dev.mmap              = mlx4_ib_mmap;
2518         ibdev->ib_dev.alloc_pd          = mlx4_ib_alloc_pd;
2519         ibdev->ib_dev.dealloc_pd        = mlx4_ib_dealloc_pd;
2520         ibdev->ib_dev.create_ah         = mlx4_ib_create_ah;
2521         ibdev->ib_dev.query_ah          = mlx4_ib_query_ah;
2522         ibdev->ib_dev.destroy_ah        = mlx4_ib_destroy_ah;
2523         ibdev->ib_dev.create_srq        = mlx4_ib_create_srq;
2524         ibdev->ib_dev.modify_srq        = mlx4_ib_modify_srq;
2525         ibdev->ib_dev.query_srq         = mlx4_ib_query_srq;
2526         ibdev->ib_dev.destroy_srq       = mlx4_ib_destroy_srq;
2527         ibdev->ib_dev.post_srq_recv     = mlx4_ib_post_srq_recv;
2528         ibdev->ib_dev.create_qp         = mlx4_ib_create_qp;
2529         ibdev->ib_dev.modify_qp         = mlx4_ib_modify_qp;
2530         ibdev->ib_dev.query_qp          = mlx4_ib_query_qp;
2531         ibdev->ib_dev.destroy_qp        = mlx4_ib_destroy_qp;
2532         ibdev->ib_dev.post_send         = mlx4_ib_post_send;
2533         ibdev->ib_dev.post_recv         = mlx4_ib_post_recv;
2534         ibdev->ib_dev.create_cq         = mlx4_ib_create_cq;
2535         ibdev->ib_dev.modify_cq         = mlx4_ib_modify_cq;
2536         ibdev->ib_dev.resize_cq         = mlx4_ib_resize_cq;
2537         ibdev->ib_dev.destroy_cq        = mlx4_ib_destroy_cq;
2538         ibdev->ib_dev.poll_cq           = mlx4_ib_poll_cq;
2539         ibdev->ib_dev.req_notify_cq     = mlx4_ib_arm_cq;
2540         ibdev->ib_dev.get_dma_mr        = mlx4_ib_get_dma_mr;
2541         ibdev->ib_dev.reg_user_mr       = mlx4_ib_reg_user_mr;
2542         ibdev->ib_dev.rereg_user_mr     = mlx4_ib_rereg_user_mr;
2543         ibdev->ib_dev.dereg_mr          = mlx4_ib_dereg_mr;
2544         ibdev->ib_dev.alloc_mr          = mlx4_ib_alloc_mr;
2545         ibdev->ib_dev.map_mr_sg         = mlx4_ib_map_mr_sg;
2546         ibdev->ib_dev.attach_mcast      = mlx4_ib_mcg_attach;
2547         ibdev->ib_dev.detach_mcast      = mlx4_ib_mcg_detach;
2548         ibdev->ib_dev.process_mad       = mlx4_ib_process_mad;
2549         ibdev->ib_dev.get_port_immutable = mlx4_port_immutable;
2550         ibdev->ib_dev.get_dev_fw_str    = get_fw_ver_str;
2551
2552         if (!mlx4_is_slave(ibdev->dev)) {
2553                 ibdev->ib_dev.alloc_fmr         = mlx4_ib_fmr_alloc;
2554                 ibdev->ib_dev.map_phys_fmr      = mlx4_ib_map_phys_fmr;
2555                 ibdev->ib_dev.unmap_fmr         = mlx4_ib_unmap_fmr;
2556                 ibdev->ib_dev.dealloc_fmr       = mlx4_ib_fmr_dealloc;
2557         }
2558
2559         if (dev->caps.flags & MLX4_DEV_CAP_FLAG_MEM_WINDOW ||
2560             dev->caps.bmme_flags & MLX4_BMME_FLAG_TYPE_2_WIN) {
2561                 ibdev->ib_dev.alloc_mw = mlx4_ib_alloc_mw;
2562                 ibdev->ib_dev.dealloc_mw = mlx4_ib_dealloc_mw;
2563
2564                 ibdev->ib_dev.uverbs_cmd_mask |=
2565                         (1ull << IB_USER_VERBS_CMD_ALLOC_MW) |
2566                         (1ull << IB_USER_VERBS_CMD_DEALLOC_MW);
2567         }
2568
2569         if (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) {
2570                 ibdev->ib_dev.alloc_xrcd = mlx4_ib_alloc_xrcd;
2571                 ibdev->ib_dev.dealloc_xrcd = mlx4_ib_dealloc_xrcd;
2572                 ibdev->ib_dev.uverbs_cmd_mask |=
2573                         (1ull << IB_USER_VERBS_CMD_OPEN_XRCD) |
2574                         (1ull << IB_USER_VERBS_CMD_CLOSE_XRCD);
2575         }
2576
2577         if (check_flow_steering_support(dev)) {
2578                 ibdev->steering_support = MLX4_STEERING_MODE_DEVICE_MANAGED;
2579                 ibdev->ib_dev.create_flow       = mlx4_ib_create_flow;
2580                 ibdev->ib_dev.destroy_flow      = mlx4_ib_destroy_flow;
2581
2582                 ibdev->ib_dev.uverbs_ex_cmd_mask        |=
2583                         (1ull << IB_USER_VERBS_EX_CMD_CREATE_FLOW) |
2584                         (1ull << IB_USER_VERBS_EX_CMD_DESTROY_FLOW);
2585         }
2586
2587         ibdev->ib_dev.uverbs_ex_cmd_mask |=
2588                 (1ull << IB_USER_VERBS_EX_CMD_QUERY_DEVICE) |
2589                 (1ull << IB_USER_VERBS_EX_CMD_CREATE_CQ) |
2590                 (1ull << IB_USER_VERBS_EX_CMD_CREATE_QP);
2591
2592         mlx4_ib_alloc_eqs(dev, ibdev);
2593
2594         spin_lock_init(&iboe->lock);
2595
2596         if (init_node_data(ibdev))
2597                 goto err_map;
2598         mlx4_init_sl2vl_tbl(ibdev);
2599
2600         for (i = 0; i < ibdev->num_ports; ++i) {
2601                 mutex_init(&ibdev->counters_table[i].mutex);
2602                 INIT_LIST_HEAD(&ibdev->counters_table[i].counters_list);
2603         }
2604
2605         num_req_counters = mlx4_is_bonded(dev) ? 1 : ibdev->num_ports;
2606         for (i = 0; i < num_req_counters; ++i) {
2607                 mutex_init(&ibdev->qp1_proxy_lock[i]);
2608                 allocated = 0;
2609                 if (mlx4_ib_port_link_layer(&ibdev->ib_dev, i + 1) ==
2610                                                 IB_LINK_LAYER_ETHERNET) {
2611                         err = mlx4_counter_alloc(ibdev->dev, &counter_index);
2612                         /* if failed to allocate a new counter, use default */
2613                         if (err)
2614                                 counter_index =
2615                                         mlx4_get_default_counter_index(dev,
2616                                                                        i + 1);
2617                         else
2618                                 allocated = 1;
2619                 } else { /* IB_LINK_LAYER_INFINIBAND use the default counter */
2620                         counter_index = mlx4_get_default_counter_index(dev,
2621                                                                        i + 1);
2622                 }
2623                 new_counter_index = kmalloc(sizeof(*new_counter_index),
2624                                             GFP_KERNEL);
2625                 if (!new_counter_index) {
2626                         if (allocated)
2627                                 mlx4_counter_free(ibdev->dev, counter_index);
2628                         goto err_counter;
2629                 }
2630                 new_counter_index->index = counter_index;
2631                 new_counter_index->allocated = allocated;
2632                 list_add_tail(&new_counter_index->list,
2633                               &ibdev->counters_table[i].counters_list);
2634                 ibdev->counters_table[i].default_counter = counter_index;
2635                 pr_info("counter index %d for port %d allocated %d\n",
2636                         counter_index, i + 1, allocated);
2637         }
2638         if (mlx4_is_bonded(dev))
2639                 for (i = 1; i < ibdev->num_ports ; ++i) {
2640                         new_counter_index =
2641                                         kmalloc(sizeof(struct counter_index),
2642                                                 GFP_KERNEL);
2643                         if (!new_counter_index)
2644                                 goto err_counter;
2645                         new_counter_index->index = counter_index;
2646                         new_counter_index->allocated = 0;
2647                         list_add_tail(&new_counter_index->list,
2648                                       &ibdev->counters_table[i].counters_list);
2649                         ibdev->counters_table[i].default_counter =
2650                                                                 counter_index;
2651                 }
2652
2653         mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB)
2654                 ib_num_ports++;
2655
2656         spin_lock_init(&ibdev->sm_lock);
2657         mutex_init(&ibdev->cap_mask_mutex);
2658         INIT_LIST_HEAD(&ibdev->qp_list);
2659         spin_lock_init(&ibdev->reset_flow_resource_lock);
2660
2661         if (ibdev->steering_support == MLX4_STEERING_MODE_DEVICE_MANAGED &&
2662             ib_num_ports) {
2663                 ibdev->steer_qpn_count = MLX4_IB_UC_MAX_NUM_QPS;
2664                 err = mlx4_qp_reserve_range(dev, ibdev->steer_qpn_count,
2665                                             MLX4_IB_UC_STEER_QPN_ALIGN,
2666                                             &ibdev->steer_qpn_base, 0);
2667                 if (err)
2668                         goto err_counter;
2669
2670                 ibdev->ib_uc_qpns_bitmap =
2671                         kmalloc(BITS_TO_LONGS(ibdev->steer_qpn_count) *
2672                                 sizeof(long),
2673                                 GFP_KERNEL);
2674                 if (!ibdev->ib_uc_qpns_bitmap) {
2675                         dev_err(&dev->persist->pdev->dev,
2676                                 "bit map alloc failed\n");
2677                         goto err_steer_qp_release;
2678                 }
2679
2680                 bitmap_zero(ibdev->ib_uc_qpns_bitmap, ibdev->steer_qpn_count);
2681
2682                 err = mlx4_FLOW_STEERING_IB_UC_QP_RANGE(
2683                                 dev, ibdev->steer_qpn_base,
2684                                 ibdev->steer_qpn_base +
2685                                 ibdev->steer_qpn_count - 1);
2686                 if (err)
2687                         goto err_steer_free_bitmap;
2688         }
2689
2690         for (j = 1; j <= ibdev->dev->caps.num_ports; j++)
2691                 atomic64_set(&iboe->mac[j - 1], ibdev->dev->caps.def_mac[j]);
2692
2693         if (mlx4_ib_alloc_diag_counters(ibdev))
2694                 goto err_steer_free_bitmap;
2695
2696         if (ib_register_device(&ibdev->ib_dev, NULL))
2697                 goto err_diag_counters;
2698
2699         if (mlx4_ib_mad_init(ibdev))
2700                 goto err_reg;
2701
2702         if (mlx4_ib_init_sriov(ibdev))
2703                 goto err_mad;
2704
2705         if (dev->caps.flags & MLX4_DEV_CAP_FLAG_IBOE ||
2706             dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ROCE_V1_V2) {
2707                 if (!iboe->nb.notifier_call) {
2708                         iboe->nb.notifier_call = mlx4_ib_netdev_event;
2709                         err = register_netdevice_notifier(&iboe->nb);
2710                         if (err) {
2711                                 iboe->nb.notifier_call = NULL;
2712                                 goto err_notif;
2713                         }
2714                 }
2715                 if (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ROCE_V1_V2) {
2716                         err = mlx4_config_roce_v2_port(dev, ROCE_V2_UDP_DPORT);
2717                         if (err) {
2718                                 goto err_notif;
2719                         }
2720                 }
2721         }
2722
2723         for (j = 0; j < ARRAY_SIZE(mlx4_class_attributes); ++j) {
2724                 if (device_create_file(&ibdev->ib_dev.dev,
2725                                        mlx4_class_attributes[j]))
2726                         goto err_notif;
2727         }
2728
2729         ibdev->ib_active = true;
2730
2731         if (mlx4_is_mfunc(ibdev->dev))
2732                 init_pkeys(ibdev);
2733
2734         /* create paravirt contexts for any VFs which are active */
2735         if (mlx4_is_master(ibdev->dev)) {
2736                 for (j = 0; j < MLX4_MFUNC_MAX; j++) {
2737                         if (j == mlx4_master_func_num(ibdev->dev))
2738                                 continue;
2739                         if (mlx4_is_slave_active(ibdev->dev, j))
2740                                 do_slave_init(ibdev, j, 1);
2741                 }
2742         }
2743         return ibdev;
2744
2745 err_notif:
2746         if (ibdev->iboe.nb.notifier_call) {
2747                 if (unregister_netdevice_notifier(&ibdev->iboe.nb))
2748                         pr_warn("failure unregistering notifier\n");
2749                 ibdev->iboe.nb.notifier_call = NULL;
2750         }
2751         flush_workqueue(wq);
2752
2753         mlx4_ib_close_sriov(ibdev);
2754
2755 err_mad:
2756         mlx4_ib_mad_cleanup(ibdev);
2757
2758 err_reg:
2759         ib_unregister_device(&ibdev->ib_dev);
2760
2761 err_diag_counters:
2762         mlx4_ib_diag_cleanup(ibdev);
2763
2764 err_steer_free_bitmap:
2765         kfree(ibdev->ib_uc_qpns_bitmap);
2766
2767 err_steer_qp_release:
2768         if (ibdev->steering_support == MLX4_STEERING_MODE_DEVICE_MANAGED)
2769                 mlx4_qp_release_range(dev, ibdev->steer_qpn_base,
2770                                       ibdev->steer_qpn_count);
2771 err_counter:
2772         for (i = 0; i < ibdev->num_ports; ++i)
2773                 mlx4_ib_delete_counters_table(ibdev, &ibdev->counters_table[i]);
2774
2775 err_map:
2776         iounmap(ibdev->uar_map);
2777
2778 err_uar:
2779         mlx4_uar_free(dev, &ibdev->priv_uar);
2780
2781 err_pd:
2782         mlx4_pd_free(dev, ibdev->priv_pdn);
2783
2784 err_dealloc:
2785         ib_dealloc_device(&ibdev->ib_dev);
2786
2787         return NULL;
2788 }
2789
2790 int mlx4_ib_steer_qp_alloc(struct mlx4_ib_dev *dev, int count, int *qpn)
2791 {
2792         int offset;
2793
2794         WARN_ON(!dev->ib_uc_qpns_bitmap);
2795
2796         offset = bitmap_find_free_region(dev->ib_uc_qpns_bitmap,
2797                                          dev->steer_qpn_count,
2798                                          get_count_order(count));
2799         if (offset < 0)
2800                 return offset;
2801
2802         *qpn = dev->steer_qpn_base + offset;
2803         return 0;
2804 }
2805
2806 void mlx4_ib_steer_qp_free(struct mlx4_ib_dev *dev, u32 qpn, int count)
2807 {
2808         if (!qpn ||
2809             dev->steering_support != MLX4_STEERING_MODE_DEVICE_MANAGED)
2810                 return;
2811
2812         BUG_ON(qpn < dev->steer_qpn_base);
2813
2814         bitmap_release_region(dev->ib_uc_qpns_bitmap,
2815                               qpn - dev->steer_qpn_base,
2816                               get_count_order(count));
2817 }
2818
2819 int mlx4_ib_steer_qp_reg(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
2820                          int is_attach)
2821 {
2822         int err;
2823         size_t flow_size;
2824         struct ib_flow_attr *flow = NULL;
2825         struct ib_flow_spec_ib *ib_spec;
2826
2827         if (is_attach) {
2828                 flow_size = sizeof(struct ib_flow_attr) +
2829                             sizeof(struct ib_flow_spec_ib);
2830                 flow = kzalloc(flow_size, GFP_KERNEL);
2831                 if (!flow)
2832                         return -ENOMEM;
2833                 flow->port = mqp->port;
2834                 flow->num_of_specs = 1;
2835                 flow->size = flow_size;
2836                 ib_spec = (struct ib_flow_spec_ib *)(flow + 1);
2837                 ib_spec->type = IB_FLOW_SPEC_IB;
2838                 ib_spec->size = sizeof(struct ib_flow_spec_ib);
2839                 /* Add an empty rule for IB L2 */
2840                 memset(&ib_spec->mask, 0, sizeof(ib_spec->mask));
2841
2842                 err = __mlx4_ib_create_flow(&mqp->ibqp, flow,
2843                                             IB_FLOW_DOMAIN_NIC,
2844                                             MLX4_FS_REGULAR,
2845                                             &mqp->reg_id);
2846         } else {
2847                 err = __mlx4_ib_destroy_flow(mdev->dev, mqp->reg_id);
2848         }
2849         kfree(flow);
2850         return err;
2851 }
2852
2853 static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr)
2854 {
2855         struct mlx4_ib_dev *ibdev = ibdev_ptr;
2856         int p;
2857
2858         ibdev->ib_active = false;
2859         flush_workqueue(wq);
2860
2861         mlx4_ib_close_sriov(ibdev);
2862         mlx4_ib_mad_cleanup(ibdev);
2863         ib_unregister_device(&ibdev->ib_dev);
2864         mlx4_ib_diag_cleanup(ibdev);
2865         if (ibdev->iboe.nb.notifier_call) {
2866                 if (unregister_netdevice_notifier(&ibdev->iboe.nb))
2867                         pr_warn("failure unregistering notifier\n");
2868                 ibdev->iboe.nb.notifier_call = NULL;
2869         }
2870
2871         if (ibdev->steering_support == MLX4_STEERING_MODE_DEVICE_MANAGED) {
2872                 mlx4_qp_release_range(dev, ibdev->steer_qpn_base,
2873                                       ibdev->steer_qpn_count);
2874                 kfree(ibdev->ib_uc_qpns_bitmap);
2875         }
2876
2877         iounmap(ibdev->uar_map);
2878         for (p = 0; p < ibdev->num_ports; ++p)
2879                 mlx4_ib_delete_counters_table(ibdev, &ibdev->counters_table[p]);
2880
2881         mlx4_foreach_port(p, dev, MLX4_PORT_TYPE_IB)
2882                 mlx4_CLOSE_PORT(dev, p);
2883
2884         mlx4_ib_free_eqs(dev, ibdev);
2885
2886         mlx4_uar_free(dev, &ibdev->priv_uar);
2887         mlx4_pd_free(dev, ibdev->priv_pdn);
2888         ib_dealloc_device(&ibdev->ib_dev);
2889 }
2890
2891 static void do_slave_init(struct mlx4_ib_dev *ibdev, int slave, int do_init)
2892 {
2893         struct mlx4_ib_demux_work **dm = NULL;
2894         struct mlx4_dev *dev = ibdev->dev;
2895         int i;
2896         unsigned long flags;
2897         struct mlx4_active_ports actv_ports;
2898         unsigned int ports;
2899         unsigned int first_port;
2900
2901         if (!mlx4_is_master(dev))
2902                 return;
2903
2904         actv_ports = mlx4_get_active_ports(dev, slave);
2905         ports = bitmap_weight(actv_ports.ports, dev->caps.num_ports);
2906         first_port = find_first_bit(actv_ports.ports, dev->caps.num_ports);
2907
2908         dm = kcalloc(ports, sizeof(*dm), GFP_ATOMIC);
2909         if (!dm) {
2910                 pr_err("failed to allocate memory for tunneling qp update\n");
2911                 return;
2912         }
2913
2914         for (i = 0; i < ports; i++) {
2915                 dm[i] = kmalloc(sizeof (struct mlx4_ib_demux_work), GFP_ATOMIC);
2916                 if (!dm[i]) {
2917                         pr_err("failed to allocate memory for tunneling qp update work struct\n");
2918                         while (--i >= 0)
2919                                 kfree(dm[i]);
2920                         goto out;
2921                 }
2922                 INIT_WORK(&dm[i]->work, mlx4_ib_tunnels_update_work);
2923                 dm[i]->port = first_port + i + 1;
2924                 dm[i]->slave = slave;
2925                 dm[i]->do_init = do_init;
2926                 dm[i]->dev = ibdev;
2927         }
2928         /* initialize or tear down tunnel QPs for the slave */
2929         spin_lock_irqsave(&ibdev->sriov.going_down_lock, flags);
2930         if (!ibdev->sriov.is_going_down) {
2931                 for (i = 0; i < ports; i++)
2932                         queue_work(ibdev->sriov.demux[i].ud_wq, &dm[i]->work);
2933                 spin_unlock_irqrestore(&ibdev->sriov.going_down_lock, flags);
2934         } else {
2935                 spin_unlock_irqrestore(&ibdev->sriov.going_down_lock, flags);
2936                 for (i = 0; i < ports; i++)
2937                         kfree(dm[i]);
2938         }
2939 out:
2940         kfree(dm);
2941         return;
2942 }
2943
2944 static void mlx4_ib_handle_catas_error(struct mlx4_ib_dev *ibdev)
2945 {
2946         struct mlx4_ib_qp *mqp;
2947         unsigned long flags_qp;
2948         unsigned long flags_cq;
2949         struct mlx4_ib_cq *send_mcq, *recv_mcq;
2950         struct list_head    cq_notify_list;
2951         struct mlx4_cq *mcq;
2952         unsigned long flags;
2953
2954         pr_warn("mlx4_ib_handle_catas_error was started\n");
2955         INIT_LIST_HEAD(&cq_notify_list);
2956
2957         /* Go over qp list reside on that ibdev, sync with create/destroy qp.*/
2958         spin_lock_irqsave(&ibdev->reset_flow_resource_lock, flags);
2959
2960         list_for_each_entry(mqp, &ibdev->qp_list, qps_list) {
2961                 spin_lock_irqsave(&mqp->sq.lock, flags_qp);
2962                 if (mqp->sq.tail != mqp->sq.head) {
2963                         send_mcq = to_mcq(mqp->ibqp.send_cq);
2964                         spin_lock_irqsave(&send_mcq->lock, flags_cq);
2965                         if (send_mcq->mcq.comp &&
2966                             mqp->ibqp.send_cq->comp_handler) {
2967                                 if (!send_mcq->mcq.reset_notify_added) {
2968                                         send_mcq->mcq.reset_notify_added = 1;
2969                                         list_add_tail(&send_mcq->mcq.reset_notify,
2970                                                       &cq_notify_list);
2971                                 }
2972                         }
2973                         spin_unlock_irqrestore(&send_mcq->lock, flags_cq);
2974                 }
2975                 spin_unlock_irqrestore(&mqp->sq.lock, flags_qp);
2976                 /* Now, handle the QP's receive queue */
2977                 spin_lock_irqsave(&mqp->rq.lock, flags_qp);
2978                 /* no handling is needed for SRQ */
2979                 if (!mqp->ibqp.srq) {
2980                         if (mqp->rq.tail != mqp->rq.head) {
2981                                 recv_mcq = to_mcq(mqp->ibqp.recv_cq);
2982                                 spin_lock_irqsave(&recv_mcq->lock, flags_cq);
2983                                 if (recv_mcq->mcq.comp &&
2984                                     mqp->ibqp.recv_cq->comp_handler) {
2985                                         if (!recv_mcq->mcq.reset_notify_added) {
2986                                                 recv_mcq->mcq.reset_notify_added = 1;
2987                                                 list_add_tail(&recv_mcq->mcq.reset_notify,
2988                                                               &cq_notify_list);
2989                                         }
2990                                 }
2991                                 spin_unlock_irqrestore(&recv_mcq->lock,
2992                                                        flags_cq);
2993                         }
2994                 }
2995                 spin_unlock_irqrestore(&mqp->rq.lock, flags_qp);
2996         }
2997
2998         list_for_each_entry(mcq, &cq_notify_list, reset_notify) {
2999                 mcq->comp(mcq);
3000         }
3001         spin_unlock_irqrestore(&ibdev->reset_flow_resource_lock, flags);
3002         pr_warn("mlx4_ib_handle_catas_error ended\n");
3003 }
3004
3005 static void handle_bonded_port_state_event(struct work_struct *work)
3006 {
3007         struct ib_event_work *ew =
3008                 container_of(work, struct ib_event_work, work);
3009         struct mlx4_ib_dev *ibdev = ew->ib_dev;
3010         enum ib_port_state bonded_port_state = IB_PORT_NOP;
3011         int i;
3012         struct ib_event ibev;
3013
3014         kfree(ew);
3015         spin_lock_bh(&ibdev->iboe.lock);
3016         for (i = 0; i < MLX4_MAX_PORTS; ++i) {
3017                 struct ifnet *curr_netdev = ibdev->iboe.netdevs[i];
3018                 enum ib_port_state curr_port_state;
3019
3020                 if (!curr_netdev)
3021                         continue;
3022
3023                 curr_port_state =
3024                         ((curr_netdev->if_drv_flags & IFF_DRV_RUNNING) != 0 &&
3025                          curr_netdev->if_link_state == LINK_STATE_UP) ?
3026                         IB_PORT_ACTIVE : IB_PORT_DOWN;
3027
3028                 bonded_port_state = (bonded_port_state != IB_PORT_ACTIVE) ?
3029                         curr_port_state : IB_PORT_ACTIVE;
3030         }
3031         spin_unlock_bh(&ibdev->iboe.lock);
3032
3033         ibev.device = &ibdev->ib_dev;
3034         ibev.element.port_num = 1;
3035         ibev.event = (bonded_port_state == IB_PORT_ACTIVE) ?
3036                 IB_EVENT_PORT_ACTIVE : IB_EVENT_PORT_ERR;
3037
3038         ib_dispatch_event(&ibev);
3039 }
3040
3041 void mlx4_ib_sl2vl_update(struct mlx4_ib_dev *mdev, int port)
3042 {
3043         u64 sl2vl;
3044         int err;
3045
3046         err = mlx4_ib_query_sl2vl(&mdev->ib_dev, port, &sl2vl);
3047         if (err) {
3048                 pr_err("Unable to get current sl to vl mapping for port %d.  Using all zeroes (%d)\n",
3049                        port, err);
3050                 sl2vl = 0;
3051         }
3052         atomic64_set(&mdev->sl2vl[port - 1], sl2vl);
3053 }
3054
3055 static void ib_sl2vl_update_work(struct work_struct *work)
3056 {
3057         struct ib_event_work *ew = container_of(work, struct ib_event_work, work);
3058         struct mlx4_ib_dev *mdev = ew->ib_dev;
3059         int port = ew->port;
3060
3061         mlx4_ib_sl2vl_update(mdev, port);
3062
3063         kfree(ew);
3064 }
3065
3066 void mlx4_sched_ib_sl2vl_update_work(struct mlx4_ib_dev *ibdev,
3067                                      int port)
3068 {
3069         struct ib_event_work *ew;
3070
3071         ew = kmalloc(sizeof(*ew), GFP_ATOMIC);
3072         if (ew) {
3073                 INIT_WORK(&ew->work, ib_sl2vl_update_work);
3074                 ew->port = port;
3075                 ew->ib_dev = ibdev;
3076                 queue_work(wq, &ew->work);
3077         } else {
3078                 pr_err("failed to allocate memory for sl2vl update work\n");
3079         }
3080 }
3081
3082 static void mlx4_ib_event(struct mlx4_dev *dev, void *ibdev_ptr,
3083                           enum mlx4_dev_event event, unsigned long param)
3084 {
3085         struct ib_event ibev;
3086         struct mlx4_ib_dev *ibdev = to_mdev((struct ib_device *) ibdev_ptr);
3087         struct mlx4_eqe *eqe = NULL;
3088         struct ib_event_work *ew;
3089         int p = 0;
3090
3091         if (mlx4_is_bonded(dev) &&
3092             ((event == MLX4_DEV_EVENT_PORT_UP) ||
3093             (event == MLX4_DEV_EVENT_PORT_DOWN))) {
3094                 ew = kmalloc(sizeof(*ew), GFP_ATOMIC);
3095                 if (!ew)
3096                         return;
3097                 INIT_WORK(&ew->work, handle_bonded_port_state_event);
3098                 ew->ib_dev = ibdev;
3099                 queue_work(wq, &ew->work);
3100                 return;
3101         }
3102
3103         if (event == MLX4_DEV_EVENT_PORT_MGMT_CHANGE)
3104                 eqe = (struct mlx4_eqe *)param;
3105         else
3106                 p = (int) param;
3107
3108         switch (event) {
3109         case MLX4_DEV_EVENT_PORT_UP:
3110                 if (p > ibdev->num_ports)
3111                         return;
3112                 if (!mlx4_is_slave(dev) &&
3113                     rdma_port_get_link_layer(&ibdev->ib_dev, p) ==
3114                         IB_LINK_LAYER_INFINIBAND) {
3115                         if (mlx4_is_master(dev))
3116                                 mlx4_ib_invalidate_all_guid_record(ibdev, p);
3117                         if (ibdev->dev->flags & MLX4_FLAG_SECURE_HOST &&
3118                             !(ibdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_SL_TO_VL_CHANGE_EVENT))
3119                                 mlx4_sched_ib_sl2vl_update_work(ibdev, p);
3120                 }
3121                 ibev.event = IB_EVENT_PORT_ACTIVE;
3122                 break;
3123
3124         case MLX4_DEV_EVENT_PORT_DOWN:
3125                 if (p > ibdev->num_ports)
3126                         return;
3127                 ibev.event = IB_EVENT_PORT_ERR;
3128                 break;
3129
3130         case MLX4_DEV_EVENT_CATASTROPHIC_ERROR:
3131                 ibdev->ib_active = false;
3132                 ibev.event = IB_EVENT_DEVICE_FATAL;
3133                 mlx4_ib_handle_catas_error(ibdev);
3134                 break;
3135
3136         case MLX4_DEV_EVENT_PORT_MGMT_CHANGE:
3137                 ew = kmalloc(sizeof *ew, GFP_ATOMIC);
3138                 if (!ew) {
3139                         pr_err("failed to allocate memory for events work\n");
3140                         break;
3141                 }
3142
3143                 INIT_WORK(&ew->work, handle_port_mgmt_change_event);
3144                 memcpy(&ew->ib_eqe, eqe, sizeof *eqe);
3145                 ew->ib_dev = ibdev;
3146                 /* need to queue only for port owner, which uses GEN_EQE */
3147                 if (mlx4_is_master(dev))
3148                         queue_work(wq, &ew->work);
3149                 else
3150                         handle_port_mgmt_change_event(&ew->work);
3151                 return;
3152
3153         case MLX4_DEV_EVENT_SLAVE_INIT:
3154                 /* here, p is the slave id */
3155                 do_slave_init(ibdev, p, 1);
3156                 if (mlx4_is_master(dev)) {
3157                         int i;
3158
3159                         for (i = 1; i <= ibdev->num_ports; i++) {
3160                                 if (rdma_port_get_link_layer(&ibdev->ib_dev, i)
3161                                         == IB_LINK_LAYER_INFINIBAND)
3162                                         mlx4_ib_slave_alias_guid_event(ibdev,
3163                                                                        p, i,
3164                                                                        1);
3165                         }
3166                 }
3167                 return;
3168
3169         case MLX4_DEV_EVENT_SLAVE_SHUTDOWN:
3170                 if (mlx4_is_master(dev)) {
3171                         int i;
3172
3173                         for (i = 1; i <= ibdev->num_ports; i++) {
3174                                 if (rdma_port_get_link_layer(&ibdev->ib_dev, i)
3175                                         == IB_LINK_LAYER_INFINIBAND)
3176                                         mlx4_ib_slave_alias_guid_event(ibdev,
3177                                                                        p, i,
3178                                                                        0);
3179                         }
3180                 }
3181                 /* here, p is the slave id */
3182                 do_slave_init(ibdev, p, 0);
3183                 return;
3184
3185         default:
3186                 return;
3187         }
3188
3189         ibev.device           = ibdev_ptr;
3190         ibev.element.port_num = mlx4_is_bonded(ibdev->dev) ? 1 : (u8)p;
3191
3192         ib_dispatch_event(&ibev);
3193 }
3194
3195 static struct mlx4_interface mlx4_ib_interface = {
3196         .add            = mlx4_ib_add,
3197         .remove         = mlx4_ib_remove,
3198         .event          = mlx4_ib_event,
3199         .protocol       = MLX4_PROT_IB_IPV6,
3200         .flags          = MLX4_INTFF_BONDING
3201 };
3202
3203 static int __init mlx4_ib_init(void)
3204 {
3205         int err;
3206
3207         wq = alloc_ordered_workqueue("mlx4_ib", WQ_MEM_RECLAIM);
3208         if (!wq)
3209                 return -ENOMEM;
3210
3211         err = mlx4_ib_mcg_init();
3212         if (err)
3213                 goto clean_wq;
3214
3215         err = mlx4_register_interface(&mlx4_ib_interface);
3216         if (err)
3217                 goto clean_mcg;
3218
3219         return 0;
3220
3221 clean_mcg:
3222         mlx4_ib_mcg_destroy();
3223
3224 clean_wq:
3225         destroy_workqueue(wq);
3226         return err;
3227 }
3228
3229 static void __exit mlx4_ib_cleanup(void)
3230 {
3231         mlx4_unregister_interface(&mlx4_ib_interface);
3232         mlx4_ib_mcg_destroy();
3233         destroy_workqueue(wq);
3234 }
3235
3236 module_init_order(mlx4_ib_init, SI_ORDER_SEVENTH);
3237 module_exit_order(mlx4_ib_cleanup, SI_ORDER_SEVENTH);
3238
3239 static int
3240 mlx4ib_evhand(module_t mod, int event, void *arg)
3241 {
3242         return (0);
3243 }
3244
3245 static moduledata_t mlx4ib_mod = {
3246         .name = "mlx4ib",
3247         .evhand = mlx4ib_evhand,
3248 };
3249
3250 DECLARE_MODULE(mlx4ib, mlx4ib_mod, SI_SUB_LAST, SI_ORDER_ANY);
3251 MODULE_DEPEND(mlx4ib, mlx4, 1, 1, 1);
3252 MODULE_DEPEND(mlx4ib, ibcore, 1, 1, 1);
3253 MODULE_DEPEND(mlx4ib, linuxkpi, 1, 1, 1);