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/netdevice.h>
  40 #include <linux/inetdevice.h>
  41 #include <linux/if_vlan.h>
  42 #include <linux/fs.h>
  43 #include <net/ipv6.h>
  44
  45 #include <rdma/ib_smi.h>
  46 #include <rdma/ib_user_verbs.h>
  47 #include <rdma/ib_user_verbs_exp.h>
  48 #include <rdma/ib_addr.h>
  49
  50 #include <dev/mlx4/driver.h>
  51 #include <dev/mlx4/cmd.h>
  52 #include <linux/sched.h>
  53 #include <linux/page.h>
  54 #include <linux/printk.h>
  55 #include "mlx4_ib.h"
  56 #include "mlx4_exp.h"
  57 #include "user.h"
  58 #include "wc.h"
  59
  60 #define DRV_NAME        MLX4_IB_DRV_NAME
  61 #define DRV_VERSION     "1.0"
  62 #define DRV_RELDATE     __DATE__
  63
  64 #define MLX4_IB_DRIVER_PROC_DIR_NAME "driver/mlx4_ib"
  65 #define MLX4_IB_MRS_PROC_DIR_NAME "mrs"
  66 #define MLX4_IB_FLOW_MAX_PRIO 0xFFF
  67 #define MLX4_IB_FLOW_QPN_MASK 0xFFFFFF
  68
  69 MODULE_AUTHOR("Roland Dreier");
  70 MODULE_DESCRIPTION("Mellanox ConnectX HCA InfiniBand driver");
  71 MODULE_LICENSE("Dual BSD/GPL");
  72 #ifdef __linux__
  73 MODULE_VERSION(DRV_VERSION);
  74 #endif
  75
  76 int mlx4_ib_sm_guid_assign = 1;
  77
  78 module_param_named(sm_guid_assign, mlx4_ib_sm_guid_assign, int, 0444);
  79 MODULE_PARM_DESC(sm_guid_assign, "Enable SM alias_GUID assignment if sm_guid_assign > 0 (Default: 1)");
  80
  81 enum {
  82         MAX_NUM_STR_BITMAP = 1 << 15,
  83         DEFAULT_TBL_VAL = -1
  84 };
  85
  86 static struct mlx4_dbdf2val_lst dev_assign_str = {
  87         .name           = "dev_assign_str param",
  88         .num_vals       = 1,
  89         .def_val        = {DEFAULT_TBL_VAL},
  90         .range          = {0, MAX_NUM_STR_BITMAP - 1}
  91 };
  92 module_param_string(dev_assign_str, dev_assign_str.str,
  93                     sizeof(dev_assign_str.str), 0444);
  94 MODULE_PARM_DESC(dev_assign_str,
  95                  "Map device function numbers to IB device numbers (e.g. '0000:04:00.0-0,002b:1c:0b.a-1,...').\n"
  96                  "\t\tHexadecimal digits for the device function (e.g. 002b:1c:0b.a) and decimal for IB device numbers (e.g. 1).\n"
  97                  "\t\tMax supported devices - 32");
  98
  99
 100 static unsigned long *dev_num_str_bitmap;
 101 static spinlock_t dev_num_str_lock;
 102
 103 static const char mlx4_ib_version[] =
 104         DRV_NAME ": Mellanox ConnectX InfiniBand driver v"
 105         DRV_VERSION " (" DRV_RELDATE ")\n";
 106
 107 struct update_gid_work {
 108         struct work_struct      work;
 109         union ib_gid            gids[128];
 110         struct mlx4_ib_dev     *dev;
 111         int                     port;
 112 };
 113
 114 struct dev_rec {
 115         int     bus;
 116         int     dev;
 117         int     func;
 118         int     nr;
 119 };
 120
 121 static int dr_active;
 122
 123 static void do_slave_init(struct mlx4_ib_dev *ibdev, int slave, int do_init);
 124
 125 static void mlx4_ib_scan_netdevs(struct mlx4_ib_dev *ibdev, struct net_device*,
 126                                  unsigned long);
 127
 128 static u8 mlx4_ib_get_dev_port(struct net_device *dev,
 129                                         struct mlx4_ib_dev *ibdev);
 130
 131 static struct workqueue_struct *wq;
 132
 133 static void init_query_mad(struct ib_smp *mad)
 134 {
 135         mad->base_version  = 1;
 136         mad->mgmt_class    = IB_MGMT_CLASS_SUBN_LID_ROUTED;
 137         mad->class_version = 1;
 138         mad->method        = IB_MGMT_METHOD_GET;
 139 }
 140
 141 static union ib_gid zgid;
 142
 143 static int check_flow_steering_support(struct mlx4_dev *dev)
 144 {
 145         int eth_num_ports = 0;
 146         int ib_num_ports = 0;
 147         int dmfs = dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED;
 148
 149         if (dmfs) {
 150                 int i;
 151                 mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH)
 152                         eth_num_ports++;
 153                 mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB)
 154                         ib_num_ports++;
 155                 dmfs &= (!ib_num_ports ||
 156                          (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_DMFS_IPOIB)) &&
 157                         (!eth_num_ports ||
 158                          (dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FS_EN));
 159                 if (ib_num_ports && mlx4_is_mfunc(dev)) {
 160                         dmfs = 0;
 161                 }
 162         }
 163         return dmfs;
 164 }
 165
 166 int mlx4_ib_query_device(struct ib_device *ibdev,
 167                                 struct ib_device_attr *props)
 168 {
 169         struct mlx4_ib_dev *dev = to_mdev(ibdev);
 170         struct ib_smp *in_mad  = NULL;
 171         struct ib_smp *out_mad = NULL;
 172         int err = -ENOMEM;
 173
 174         in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
 175         out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
 176         if (!in_mad || !out_mad)
 177                 goto out;
 178
 179         init_query_mad(in_mad);
 180         in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
 181
 182         err = mlx4_MAD_IFC(to_mdev(ibdev), MLX4_MAD_IFC_IGNORE_KEYS,
 183                            1, NULL, NULL, in_mad, out_mad);
 184         if (err)
 185                 goto out;
 186
 187         memset(props, 0, sizeof *props);
 188
 189         props->fw_ver = dev->dev->caps.fw_ver;
 190         props->device_cap_flags    = IB_DEVICE_CHANGE_PHY_PORT |
 191                 IB_DEVICE_PORT_ACTIVE_EVENT             |
 192                 IB_DEVICE_SYS_IMAGE_GUID                |
 193                 IB_DEVICE_RC_RNR_NAK_GEN                |
 194                 IB_DEVICE_BLOCK_MULTICAST_LOOPBACK      |
 195                 IB_DEVICE_SHARED_MR;
 196
 197         if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR)
 198                 props->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR;
 199         if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR)
 200                 props->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR;
 201         if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_APM)
 202                 props->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG;
 203         if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UD_AV_PORT)
 204                 props->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE;
 205         if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_IPOIB_CSUM)
 206                 props->device_cap_flags |= IB_DEVICE_UD_IP_CSUM;
 207         if (dev->dev->caps.max_gso_sz && dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BLH)
 208                 props->device_cap_flags |= IB_DEVICE_UD_TSO;
 209         if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_RESERVED_LKEY)
 210                 props->device_cap_flags |= IB_DEVICE_LOCAL_DMA_LKEY;
 211         if ((dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_LOCAL_INV) &&
 212             (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_REMOTE_INV) &&
 213             (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_FAST_REG_WR))
 214                 props->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS;
 215         if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC)
 216                 props->device_cap_flags |= IB_DEVICE_XRC;
 217         if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_CROSS_CHANNEL)
 218                 props->device_cap_flags |= IB_DEVICE_CROSS_CHANNEL;
 219
 220         if (check_flow_steering_support(dev->dev))
 221                 props->device_cap_flags |= IB_DEVICE_MANAGED_FLOW_STEERING;
 222
 223
 224         props->device_cap_flags |= IB_DEVICE_QPG;
 225         if (dev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS) {
 226                 props->device_cap_flags |= IB_DEVICE_UD_RSS;
 227                 props->max_rss_tbl_sz = dev->dev->caps.max_rss_tbl_sz;
 228         }
 229         if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_MEM_WINDOW)
 230                 props->device_cap_flags |= IB_DEVICE_MEM_WINDOW;
 231         if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_TYPE_2_WIN) {
 232                 if (dev->dev->caps.bmme_flags & MLX4_BMME_FLAG_WIN_TYPE_2B)
 233                         props->device_cap_flags |= IB_DEVICE_MEM_WINDOW_TYPE_2B;
 234                 else
 235                         props->device_cap_flags |= IB_DEVICE_MEM_WINDOW_TYPE_2A;
 236         }
 237         props->vendor_id           = be32_to_cpup((__be32 *) (out_mad->data + 36)) &
 238                 0xffffff;
 239         props->vendor_part_id      = dev->dev->pdev->device;
 240         props->hw_ver              = be32_to_cpup((__be32 *) (out_mad->data + 32));
 241         memcpy(&props->sys_image_guid, out_mad->data +  4, 8);
 242
 243         props->max_mr_size         = ~0ull;
 244         props->page_size_cap       = dev->dev->caps.page_size_cap;
 245         props->max_qp              = dev->dev->quotas.qp;
 246         props->max_qp_wr           = dev->dev->caps.max_wqes - MLX4_IB_SQ_MAX_SPARE;
 247         props->max_sge             = min(dev->dev->caps.max_sq_sg,
 248                                          dev->dev->caps.max_rq_sg);
 249         props->max_cq              = dev->dev->quotas.cq;
 250         props->max_cqe             = dev->dev->caps.max_cqes;
 251         props->max_mr              = dev->dev->quotas.mpt;
 252         props->max_pd              = dev->dev->caps.num_pds - dev->dev->caps.reserved_pds;
 253         props->max_qp_rd_atom      = dev->dev->caps.max_qp_dest_rdma;
 254         props->max_qp_init_rd_atom = dev->dev->caps.max_qp_init_rdma;
 255         props->max_res_rd_atom     = props->max_qp_rd_atom * props->max_qp;
 256         props->max_srq             = dev->dev->quotas.srq;
 257         props->max_srq_wr          = dev->dev->caps.max_srq_wqes - 1;
 258         props->max_srq_sge         = dev->dev->caps.max_srq_sge;
 259         props->max_fast_reg_page_list_len = MLX4_MAX_FAST_REG_PAGES;
 260         props->local_ca_ack_delay  = dev->dev->caps.local_ca_ack_delay;
 261         props->atomic_cap          = dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_ATOMIC ?
 262                 IB_ATOMIC_HCA : IB_ATOMIC_NONE;
 263         props->masked_atomic_cap   = props->atomic_cap;
 264         props->max_pkeys           = dev->dev->caps.pkey_table_len[1];
 265         props->max_mcast_grp       = dev->dev->caps.num_mgms + dev->dev->caps.num_amgms;
 266         props->max_mcast_qp_attach = dev->dev->caps.num_qp_per_mgm;
 267         props->max_total_mcast_qp_attach = props->max_mcast_qp_attach *
 268                                            props->max_mcast_grp;
 269         props->max_map_per_fmr = dev->dev->caps.max_fmr_maps;
 270         props->hca_core_clock = dev->dev->caps.hca_core_clock;
 271         if (dev->dev->caps.hca_core_clock > 0)
 272                 props->comp_mask |= IB_DEVICE_ATTR_WITH_HCA_CORE_CLOCK;
 273         if (dev->dev->caps.cq_timestamp) {
 274                 props->timestamp_mask = 0xFFFFFFFFFFFF;
 275                 props->comp_mask |= IB_DEVICE_ATTR_WITH_TIMESTAMP_MASK;
 276         }
 277
 278 out:
 279         kfree(in_mad);
 280         kfree(out_mad);
 281
 282         return err;
 283 }
 284
 285 static enum rdma_link_layer
 286 mlx4_ib_port_link_layer(struct ib_device *device, u8 port_num)
 287 {
 288         struct mlx4_dev *dev = to_mdev(device)->dev;
 289
 290         return dev->caps.port_mask[port_num] == MLX4_PORT_TYPE_IB ?
 291                 IB_LINK_LAYER_INFINIBAND : IB_LINK_LAYER_ETHERNET;
 292 }
 293
 294 static int ib_link_query_port(struct ib_device *ibdev, u8 port,
 295                               struct ib_port_attr *props, int netw_view)
 296 {
 297         struct ib_smp *in_mad  = NULL;
 298         struct ib_smp *out_mad = NULL;
 299         int ext_active_speed;
 300         int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
 301         int err = -ENOMEM;
 302
 303         in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
 304         out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
 305         if (!in_mad || !out_mad)
 306                 goto out;
 307
 308         init_query_mad(in_mad);
 309         in_mad->attr_id  = IB_SMP_ATTR_PORT_INFO;
 310         in_mad->attr_mod = cpu_to_be32(port);
 311
 312         if (mlx4_is_mfunc(to_mdev(ibdev)->dev) && netw_view)
 313                 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
 314
 315         err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, NULL, NULL,
 316                                 in_mad, out_mad);
 317         if (err)
 318                 goto out;
 319
 320
 321         props->lid              = be16_to_cpup((__be16 *) (out_mad->data + 16));
 322         props->lmc              = out_mad->data[34] & 0x7;
 323         props->sm_lid           = be16_to_cpup((__be16 *) (out_mad->data + 18));
 324         props->sm_sl            = out_mad->data[36] & 0xf;
 325         props->state            = out_mad->data[32] & 0xf;
 326         props->phys_state       = out_mad->data[33] >> 4;
 327         props->port_cap_flags   = be32_to_cpup((__be32 *) (out_mad->data + 20));
 328         if (netw_view)
 329                 props->gid_tbl_len = out_mad->data[50];
 330         else
 331                 props->gid_tbl_len = to_mdev(ibdev)->dev->caps.gid_table_len[port];
 332         props->max_msg_sz       = to_mdev(ibdev)->dev->caps.max_msg_sz;
 333         props->pkey_tbl_len     = to_mdev(ibdev)->dev->caps.pkey_table_len[port];
 334         props->bad_pkey_cntr    = be16_to_cpup((__be16 *) (out_mad->data + 46));
 335         props->qkey_viol_cntr   = be16_to_cpup((__be16 *) (out_mad->data + 48));
 336         props->active_width     = out_mad->data[31] & 0xf;
 337         props->active_speed     = out_mad->data[35] >> 4;
 338         props->max_mtu          = out_mad->data[41] & 0xf;
 339         props->active_mtu       = out_mad->data[36] >> 4;
 340         props->subnet_timeout   = out_mad->data[51] & 0x1f;
 341         props->max_vl_num       = out_mad->data[37] >> 4;
 342         props->init_type_reply  = out_mad->data[41] >> 4;
 343
 344         /* Check if extended speeds (EDR/FDR/...) are supported */
 345         if (props->port_cap_flags & IB_PORT_EXTENDED_SPEEDS_SUP) {
 346                 ext_active_speed = out_mad->data[62] >> 4;
 347
 348                 switch (ext_active_speed) {
 349                 case 1:
 350                         props->active_speed = IB_SPEED_FDR;
 351                         break;
 352                 case 2:
 353                         props->active_speed = IB_SPEED_EDR;
 354                         break;
 355                 }
 356         }
 357
 358         /* If reported active speed is QDR, check if is FDR-10 */
 359         if (props->active_speed == IB_SPEED_QDR) {
 360                 init_query_mad(in_mad);
 361                 in_mad->attr_id = MLX4_ATTR_EXTENDED_PORT_INFO;
 362                 in_mad->attr_mod = cpu_to_be32(port);
 363
 364                 err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port,
 365                                    NULL, NULL, in_mad, out_mad);
 366                 if (err)
 367                         goto out;
 368
 369                 /* Checking LinkSpeedActive for FDR-10 */
 370                 if (out_mad->data[15] & 0x1)
 371                         props->active_speed = IB_SPEED_FDR10;
 372         }
 373
 374         /* Avoid wrong speed value returned by FW if the IB link is down. */
 375         if (props->state == IB_PORT_DOWN)
 376                  props->active_speed = IB_SPEED_SDR;
 377
 378 out:
 379         kfree(in_mad);
 380         kfree(out_mad);
 381         return err;
 382 }
 383
 384 static u8 state_to_phys_state(enum ib_port_state state)
 385 {
 386         return state == IB_PORT_ACTIVE ? 5 : 3;
 387 }
 388
 389 static int eth_link_query_port(struct ib_device *ibdev, u8 port,
 390                                struct ib_port_attr *props, int netw_view)
 391 {
 392
 393         struct mlx4_ib_dev *mdev = to_mdev(ibdev);
 394         struct mlx4_ib_iboe *iboe = &mdev->iboe;
 395         struct net_device *ndev;
 396         enum ib_mtu tmp;
 397         struct mlx4_cmd_mailbox *mailbox;
 398         unsigned long flags;
 399         int err = 0;
 400
 401         mailbox = mlx4_alloc_cmd_mailbox(mdev->dev);
 402         if (IS_ERR(mailbox))
 403                 return PTR_ERR(mailbox);
 404
 405         err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma, port, 0,
 406                            MLX4_CMD_QUERY_PORT, MLX4_CMD_TIME_CLASS_B,
 407                            MLX4_CMD_WRAPPED);
 408         if (err)
 409                 goto out;
 410
 411         props->active_width     =  (((u8 *)mailbox->buf)[5] == 0x40) ?
 412                                                 IB_WIDTH_4X : IB_WIDTH_1X;
 413         props->active_speed     = IB_SPEED_QDR;
 414         props->port_cap_flags   = IB_PORT_CM_SUP;
 415         if (netw_view)
 416                 props->gid_tbl_len = MLX4_ROCE_MAX_GIDS;
 417         else
 418                 props->gid_tbl_len   = mdev->dev->caps.gid_table_len[port];
 419
 420         props->max_msg_sz       = mdev->dev->caps.max_msg_sz;
 421         props->pkey_tbl_len     = 1;
 422         props->max_mtu          = IB_MTU_4096;
 423         props->max_vl_num       = 2;
 424         props->state            = IB_PORT_DOWN;
 425         props->phys_state       = state_to_phys_state(props->state);
 426         props->active_mtu       = IB_MTU_256;
 427         spin_lock_irqsave(&iboe->lock, flags);
 428         ndev = iboe->netdevs[port - 1];
 429         if (!ndev)
 430                 goto out_unlock;
 431
 432         tmp = iboe_get_mtu(ndev->if_mtu);
 433         props->active_mtu = tmp ? min(props->max_mtu, tmp) : IB_MTU_256;
 434
 435         props->state            = (netif_running(ndev) && netif_carrier_ok(ndev)) ?
 436                                         IB_PORT_ACTIVE : IB_PORT_DOWN;
 437         props->phys_state       = state_to_phys_state(props->state);
 438 out_unlock:
 439         spin_unlock_irqrestore(&iboe->lock, flags);
 440 out:
 441         mlx4_free_cmd_mailbox(mdev->dev, mailbox);
 442         return err;
 443 }
 444
 445 int __mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
 446                          struct ib_port_attr *props, int netw_view)
 447 {
 448         int err;
 449
 450         memset(props, 0, sizeof *props);
 451
 452         err = mlx4_ib_port_link_layer(ibdev, port) == IB_LINK_LAYER_INFINIBAND ?
 453                 ib_link_query_port(ibdev, port, props, netw_view) :
 454                                 eth_link_query_port(ibdev, port, props, netw_view);
 455
 456         return err;
 457 }
 458
 459 static int mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
 460                               struct ib_port_attr *props)
 461 {
 462         /* returns host view */
 463         return __mlx4_ib_query_port(ibdev, port, props, 0);
 464 }
 465
 466 int __mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
 467                         union ib_gid *gid, int netw_view)
 468 {
 469         struct ib_smp *in_mad  = NULL;
 470         struct ib_smp *out_mad = NULL;
 471         int err = -ENOMEM;
 472         struct mlx4_ib_dev *dev = to_mdev(ibdev);
 473         int clear = 0;
 474         int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
 475
 476         in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
 477         out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
 478         if (!in_mad || !out_mad)
 479                 goto out;
 480
 481         init_query_mad(in_mad);
 482         in_mad->attr_id  = IB_SMP_ATTR_PORT_INFO;
 483         in_mad->attr_mod = cpu_to_be32(port);
 484
 485         if (mlx4_is_mfunc(dev->dev) && netw_view)
 486                 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
 487
 488         err = mlx4_MAD_IFC(dev, mad_ifc_flags, port, NULL, NULL, in_mad, out_mad);
 489         if (err)
 490                 goto out;
 491
 492         memcpy(gid->raw, out_mad->data + 8, 8);
 493
 494         if (mlx4_is_mfunc(dev->dev) && !netw_view) {
 495                 if (index) {
 496                         /* For any index > 0, return the null guid */
 497                         err = 0;
 498                         clear = 1;
 499                         goto out;
 500                 }
 501         }
 502
 503         init_query_mad(in_mad);
 504         in_mad->attr_id  = IB_SMP_ATTR_GUID_INFO;
 505         in_mad->attr_mod = cpu_to_be32(index / 8);
 506
 507         err = mlx4_MAD_IFC(dev, mad_ifc_flags, port,
 508                            NULL, NULL, in_mad, out_mad);
 509         if (err)
 510                 goto out;
 511
 512         memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8);
 513
 514 out:
 515         if (clear)
 516                 memset(gid->raw + 8, 0, 8);
 517         kfree(in_mad);
 518         kfree(out_mad);
 519         return err;
 520 }
 521
 522 static int iboe_query_gid(struct ib_device *ibdev, u8 port, int index,
 523                           union ib_gid *gid)
 524 {
 525         struct mlx4_ib_dev *dev = to_mdev(ibdev);
 526
 527         *gid = dev->iboe.gid_table[port - 1][index];
 528
 529         return 0;
 530 }
 531
 532 static int mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
 533                              union ib_gid *gid)
 534 {
 535         if (rdma_port_get_link_layer(ibdev, port) == IB_LINK_LAYER_INFINIBAND)
 536                 return __mlx4_ib_query_gid(ibdev, port, index, gid, 0);
 537         else
 538                 return iboe_query_gid(ibdev, port, index, gid);
 539 }
 540
 541 int __mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
 542                          u16 *pkey, int netw_view)
 543 {
 544         struct ib_smp *in_mad  = NULL;
 545         struct ib_smp *out_mad = NULL;
 546         int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
 547         int err = -ENOMEM;
 548
 549         in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
 550         out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
 551         if (!in_mad || !out_mad)
 552                 goto out;
 553
 554         init_query_mad(in_mad);
 555         in_mad->attr_id  = IB_SMP_ATTR_PKEY_TABLE;
 556         in_mad->attr_mod = cpu_to_be32(index / 32);
 557
 558         if (mlx4_is_mfunc(to_mdev(ibdev)->dev) && netw_view)
 559                 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
 560
 561         err = mlx4_MAD_IFC(to_mdev(ibdev), mad_ifc_flags, port, NULL, NULL,
 562                            in_mad, out_mad);
 563         if (err)
 564                 goto out;
 565
 566         *pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]);
 567
 568 out:
 569         kfree(in_mad);
 570         kfree(out_mad);
 571         return err;
 572 }
 573
 574 static int mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index, u16 *pkey)
 575 {
 576         return __mlx4_ib_query_pkey(ibdev, port, index, pkey, 0);
 577 }
 578
 579 static int mlx4_ib_modify_device(struct ib_device *ibdev, int mask,
 580                                  struct ib_device_modify *props)
 581 {
 582         struct mlx4_cmd_mailbox *mailbox;
 583         unsigned long flags;
 584
 585         if (mask & ~IB_DEVICE_MODIFY_NODE_DESC)
 586                 return -EOPNOTSUPP;
 587
 588         if (!(mask & IB_DEVICE_MODIFY_NODE_DESC))
 589                 return 0;
 590
 591         if (mlx4_is_slave(to_mdev(ibdev)->dev))
 592                 return -EOPNOTSUPP;
 593
 594         spin_lock_irqsave(&to_mdev(ibdev)->sm_lock, flags);
 595         memcpy(ibdev->node_desc, props->node_desc, 64);
 596         spin_unlock_irqrestore(&to_mdev(ibdev)->sm_lock, flags);
 597
 598         /*
 599          * If possible, pass node desc to FW, so it can generate
 600          * a 144 trap.  If cmd fails, just ignore.
 601          */
 602         mailbox = mlx4_alloc_cmd_mailbox(to_mdev(ibdev)->dev);
 603         if (IS_ERR(mailbox))
 604                 return 0;
 605
 606         memset(mailbox->buf, 0, 256);
 607         memcpy(mailbox->buf, props->node_desc, 64);
 608         mlx4_cmd(to_mdev(ibdev)->dev, mailbox->dma, 1, 0,
 609                  MLX4_CMD_SET_NODE, MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
 610
 611         mlx4_free_cmd_mailbox(to_mdev(ibdev)->dev, mailbox);
 612
 613         return 0;
 614 }
 615
 616 static int mlx4_SET_PORT(struct mlx4_ib_dev *dev, u8 port, int reset_qkey_viols,
 617                          u32 cap_mask)
 618 {
 619         struct mlx4_cmd_mailbox *mailbox;
 620         int err;
 621         u8 is_eth = dev->dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH;
 622
 623         mailbox = mlx4_alloc_cmd_mailbox(dev->dev);
 624         if (IS_ERR(mailbox))
 625                 return PTR_ERR(mailbox);
 626
 627         memset(mailbox->buf, 0, 256);
 628
 629         if (dev->dev->flags & MLX4_FLAG_OLD_PORT_CMDS) {
 630                 *(u8 *) mailbox->buf         = !!reset_qkey_viols << 6;
 631                 ((__be32 *) mailbox->buf)[2] = cpu_to_be32(cap_mask);
 632         } else {
 633                 ((u8 *) mailbox->buf)[3]     = !!reset_qkey_viols;
 634                 ((__be32 *) mailbox->buf)[1] = cpu_to_be32(cap_mask);
 635         }
 636
 637         err = mlx4_cmd(dev->dev, mailbox->dma, port, is_eth, MLX4_CMD_SET_PORT,
 638                        MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
 639
 640         mlx4_free_cmd_mailbox(dev->dev, mailbox);
 641         return err;
 642 }
 643
 644 static int mlx4_ib_modify_port(struct ib_device *ibdev, u8 port, int mask,
 645                                struct ib_port_modify *props)
 646 {
 647         struct ib_port_attr attr;
 648         u32 cap_mask;
 649         int err;
 650
 651         mutex_lock(&to_mdev(ibdev)->cap_mask_mutex);
 652
 653         err = mlx4_ib_query_port(ibdev, port, &attr);
 654         if (err)
 655                 goto out;
 656
 657         cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) &
 658                 ~props->clr_port_cap_mask;
 659
 660         err = mlx4_SET_PORT(to_mdev(ibdev), port,
 661                             !!(mask & IB_PORT_RESET_QKEY_CNTR),
 662                             cap_mask);
 663
 664 out:
 665         mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex);
 666         return err;
 667 }
 668
 669 static struct ib_ucontext *mlx4_ib_alloc_ucontext(struct ib_device *ibdev,
 670                                                   struct ib_udata *udata)
 671 {
 672         struct mlx4_ib_dev *dev = to_mdev(ibdev);
 673         struct mlx4_ib_ucontext *context;
 674         struct mlx4_ib_alloc_ucontext_resp_v3 resp_v3;
 675         struct mlx4_ib_alloc_ucontext_resp resp;
 676         int err;
 677
 678         if (!dev->ib_active)
 679                 return ERR_PTR(-EAGAIN);
 680
 681         if (ibdev->uverbs_abi_ver == MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION) {
 682                 resp_v3.qp_tab_size      = dev->dev->caps.num_qps;
 683                 if (mlx4_wc_enabled()) {
 684                         resp_v3.bf_reg_size      = dev->dev->caps.bf_reg_size;
 685                         resp_v3.bf_regs_per_page = dev->dev->caps.bf_regs_per_page;
 686                 } else {
 687                         resp_v3.bf_reg_size      = 0;
 688                         resp_v3.bf_regs_per_page = 0;
 689                 }
 690         } else {
 691                 resp.dev_caps         = dev->dev->caps.userspace_caps;
 692                 resp.qp_tab_size      = dev->dev->caps.num_qps;
 693                 if (mlx4_wc_enabled()) {
 694                         resp.bf_reg_size      = dev->dev->caps.bf_reg_size;
 695                         resp.bf_regs_per_page = dev->dev->caps.bf_regs_per_page;
 696                 } else {
 697                         resp.bf_reg_size      = 0;
 698                         resp.bf_regs_per_page = 0;
 699                 }
 700                 resp.cqe_size         = dev->dev->caps.cqe_size;
 701         }
 702
 703         context = kmalloc(sizeof *context, GFP_KERNEL);
 704         if (!context)
 705                 return ERR_PTR(-ENOMEM);
 706
 707         err = mlx4_uar_alloc(to_mdev(ibdev)->dev, &context->uar);
 708         if (err) {
 709                 kfree(context);
 710                 return ERR_PTR(err);
 711         }
 712
 713         INIT_LIST_HEAD(&context->db_page_list);
 714         mutex_init(&context->db_page_mutex);
 715
 716         if (ibdev->uverbs_abi_ver == MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION)
 717                 err = ib_copy_to_udata(udata, &resp_v3, sizeof(resp_v3));
 718         else
 719                 err = ib_copy_to_udata(udata, &resp, sizeof(resp));
 720
 721         if (err) {
 722                 mlx4_uar_free(to_mdev(ibdev)->dev, &context->uar);
 723                 kfree(context);
 724                 return ERR_PTR(-EFAULT);
 725         }
 726
 727         return &context->ibucontext;
 728 }
 729
 730 static int mlx4_ib_dealloc_ucontext(struct ib_ucontext *ibcontext)
 731 {
 732         struct mlx4_ib_ucontext *context = to_mucontext(ibcontext);
 733
 734         mlx4_uar_free(to_mdev(ibcontext->device)->dev, &context->uar);
 735         kfree(context);
 736
 737         return 0;
 738 }
 739
 740 /* XXX FBSD has no support for get_unmapped_area function */
 741 #if 0
 742 static unsigned long mlx4_ib_get_unmapped_area(struct file *file,
 743                         unsigned long addr,
 744                         unsigned long len, unsigned long pgoff,
 745                         unsigned long flags)
 746 {
 747         struct mm_struct *mm;
 748         struct vm_area_struct *vma;
 749         unsigned long start_addr;
 750         unsigned long page_size_order;
 751         unsigned long  command;
 752
 753         mm = current->mm;
 754         if (addr)
 755                 return current->mm->get_unmapped_area(file, addr, len,
 756                                                 pgoff, flags);
 757
 758         /* Last 8 bits hold the  command others are data per that command */
 759         command = pgoff & MLX4_IB_MMAP_CMD_MASK;
 760         if (command != MLX4_IB_MMAP_GET_CONTIGUOUS_PAGES)
 761                 return current->mm->get_unmapped_area(file, addr, len,
 762                                                 pgoff, flags);
 763
 764         page_size_order = pgoff >> MLX4_IB_MMAP_CMD_BITS;
 765         /* code is based on the huge-pages get_unmapped_area code */
 766         start_addr = mm->free_area_cache;
 767
 768         if (len <= mm->cached_hole_size)
 769                 start_addr = TASK_UNMAPPED_BASE;
 770
 771
 772 full_search:
 773         addr = ALIGN(start_addr, 1 << page_size_order);
 774
 775         for (vma = find_vma(mm, addr); ; vma = vma->vm_next) {
 776                 /* At this point:  (!vma || addr < vma->vm_end). */
 777                 if (TASK_SIZE - len < addr) {
 778                         /*
 779                          * Start a new search - just in case we missed
 780                          * some holes.
 781                          */
 782                         if (start_addr != TASK_UNMAPPED_BASE) {
 783                                 start_addr = TASK_UNMAPPED_BASE;
 784                                 goto full_search;
 785                         }
 786                         return -ENOMEM;
 787                 }
 788
 789                 if (!vma || addr + len <= vma->vm_start)
 790                         return addr;
 791                 addr = ALIGN(vma->vm_end, 1 << page_size_order);
 792         }
 793 }
 794 #endif
 795
 796 static int mlx4_ib_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
 797 {
 798         struct mlx4_ib_dev *dev = to_mdev(context->device);
 799
 800         /* Last 8 bits hold the  command others are data per that command */
 801         unsigned long  command = vma->vm_pgoff & MLX4_IB_MMAP_CMD_MASK;
 802
 803         if (command < MLX4_IB_MMAP_GET_CONTIGUOUS_PAGES) {
 804                 /* compatibility handling for commands 0 & 1*/
 805                 if (vma->vm_end - vma->vm_start != PAGE_SIZE)
 806                         return -EINVAL;
 807         }
 808         if (command == MLX4_IB_MMAP_UAR_PAGE) {
 809                 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 810
 811                 if (io_remap_pfn_range(vma, vma->vm_start,
 812                                        to_mucontext(context)->uar.pfn,
 813                                        PAGE_SIZE, vma->vm_page_prot))
 814                         return -EAGAIN;
 815         } else if (command == MLX4_IB_MMAP_BLUE_FLAME_PAGE &&
 816                         dev->dev->caps.bf_reg_size != 0) {
 817                 vma->vm_page_prot = pgprot_wc(vma->vm_page_prot);
 818
 819                 if (io_remap_pfn_range(vma, vma->vm_start,
 820                                        to_mucontext(context)->uar.pfn +
 821                                        dev->dev->caps.num_uars,
 822                                        PAGE_SIZE, vma->vm_page_prot))
 823                         return -EAGAIN;
 824         } else if (command == MLX4_IB_MMAP_GET_HW_CLOCK) {
 825                 struct mlx4_clock_params params;
 826                 int ret;
 827
 828                 ret = mlx4_get_internal_clock_params(dev->dev, &params);
 829                 if (ret)
 830                         return ret;
 831
 832                 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 833
 834                 if (io_remap_pfn_range(vma, vma->vm_start,
 835                                        (pci_resource_start(dev->dev->pdev,
 836                                        params.bar) + params.offset)
 837                                        >> PAGE_SHIFT,
 838                                        PAGE_SIZE, vma->vm_page_prot))
 839                         return -EAGAIN;
 840         } else
 841                 return -EINVAL;
 842
 843         return 0;
 844 }
 845
 846 static int mlx4_ib_ioctl(struct ib_ucontext *context, unsigned int cmd,
 847                          unsigned long arg)
 848 {
 849         struct mlx4_ib_dev *dev = to_mdev(context->device);
 850         int ret;
 851         int offset;
 852
 853         switch (cmd) {
 854         case MLX4_IOCHWCLOCKOFFSET: {
 855                 struct mlx4_clock_params params;
 856                 int ret;
 857                 ret = mlx4_get_internal_clock_params(dev->dev, &params);
 858                 if (!ret) {
 859                         offset = params.offset % PAGE_SIZE;
 860                         ret = put_user(offset,
 861                                          (int *)arg);
 862                         return sizeof(int);
 863                 } else {
 864                         return ret;
 865                 }
 866         }
 867         default: {
 868                 pr_err("mlx4_ib: invalid ioctl %u command with arg %lX\n",
 869                        cmd, arg);
 870                 return -ENOTTY;
 871         }
 872         }
 873
 874         return ret;
 875 }
 876
 877 static int mlx4_ib_query_values(struct ib_device *device, int q_values,
 878                                 struct ib_device_values *values)
 879 {
 880         struct mlx4_ib_dev *dev = to_mdev(device);
 881         cycle_t cycles;
 882
 883         values->values_mask = 0;
 884         if (q_values & IBV_VALUES_HW_CLOCK) {
 885                 cycles = mlx4_read_clock(dev->dev);
 886                 if (cycles < 0) {
 887                         values->hwclock = cycles & CORE_CLOCK_MASK;
 888                         values->values_mask |= IBV_VALUES_HW_CLOCK;
 889                 }
 890                 q_values &= ~IBV_VALUES_HW_CLOCK;
 891         }
 892
 893         if (q_values)
 894                 return -ENOTTY;
 895
 896         return 0;
 897 }
 898
 899 static struct ib_pd *mlx4_ib_alloc_pd(struct ib_device *ibdev,
 900                                       struct ib_ucontext *context,
 901                                       struct ib_udata *udata)
 902 {
 903         struct mlx4_ib_pd *pd;
 904         int err;
 905
 906         pd = kmalloc(sizeof *pd, GFP_KERNEL);
 907         if (!pd)
 908                 return ERR_PTR(-ENOMEM);
 909
 910         err = mlx4_pd_alloc(to_mdev(ibdev)->dev, &pd->pdn);
 911         if (err) {
 912                 kfree(pd);
 913                 return ERR_PTR(err);
 914         }
 915
 916         if (context)
 917                 if (ib_copy_to_udata(udata, &pd->pdn, sizeof (__u32))) {
 918                         mlx4_pd_free(to_mdev(ibdev)->dev, pd->pdn);
 919                         kfree(pd);
 920                         return ERR_PTR(-EFAULT);
 921                 }
 922
 923         return &pd->ibpd;
 924 }
 925
 926 static int mlx4_ib_dealloc_pd(struct ib_pd *pd)
 927 {
 928         mlx4_pd_free(to_mdev(pd->device)->dev, to_mpd(pd)->pdn);
 929         kfree(pd);
 930
 931         return 0;
 932 }
 933
 934 static struct ib_xrcd *mlx4_ib_alloc_xrcd(struct ib_device *ibdev,
 935                                           struct ib_ucontext *context,
 936                                           struct ib_udata *udata)
 937 {
 938         struct mlx4_ib_xrcd *xrcd;
 939         int err;
 940
 941         if (!(to_mdev(ibdev)->dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC))
 942                 return ERR_PTR(-ENOSYS);
 943
 944         xrcd = kmalloc(sizeof *xrcd, GFP_KERNEL);
 945         if (!xrcd)
 946                 return ERR_PTR(-ENOMEM);
 947
 948         err = mlx4_xrcd_alloc(to_mdev(ibdev)->dev, &xrcd->xrcdn);
 949         if (err)
 950                 goto err1;
 951
 952         xrcd->pd = ib_alloc_pd(ibdev);
 953         if (IS_ERR(xrcd->pd)) {
 954                 err = PTR_ERR(xrcd->pd);
 955                 goto err2;
 956         }
 957
 958         xrcd->cq = ib_create_cq(ibdev, NULL, NULL, xrcd, 1, 0);
 959         if (IS_ERR(xrcd->cq)) {
 960                 err = PTR_ERR(xrcd->cq);
 961                 goto err3;
 962         }
 963
 964         return &xrcd->ibxrcd;
 965
 966 err3:
 967         ib_dealloc_pd(xrcd->pd);
 968 err2:
 969         mlx4_xrcd_free(to_mdev(ibdev)->dev, xrcd->xrcdn);
 970 err1:
 971         kfree(xrcd);
 972         return ERR_PTR(err);
 973 }
 974
 975 static int mlx4_ib_dealloc_xrcd(struct ib_xrcd *xrcd)
 976 {
 977         ib_destroy_cq(to_mxrcd(xrcd)->cq);
 978         ib_dealloc_pd(to_mxrcd(xrcd)->pd);
 979         mlx4_xrcd_free(to_mdev(xrcd->device)->dev, to_mxrcd(xrcd)->xrcdn);
 980         kfree(xrcd);
 981
 982         return 0;
 983 }
 984
 985 static int add_gid_entry(struct ib_qp *ibqp, union ib_gid *gid)
 986 {
 987         struct mlx4_ib_qp *mqp = to_mqp(ibqp);
 988         struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
 989         struct mlx4_ib_gid_entry *ge;
 990
 991         ge = kzalloc(sizeof *ge, GFP_KERNEL);
 992         if (!ge)
 993                 return -ENOMEM;
 994
 995         ge->gid = *gid;
 996         if (mlx4_ib_add_mc(mdev, mqp, gid)) {
 997                 ge->port = mqp->port;
 998                 ge->added = 1;
 999         }
1000
1001         mutex_lock(&mqp->mutex);
1002         list_add_tail(&ge->list, &mqp->gid_list);
1003         mutex_unlock(&mqp->mutex);
1004
1005         return 0;
1006 }
1007
1008 int mlx4_ib_add_mc(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
1009                    union ib_gid *gid)
1010 {
1011         u8 mac[6];
1012         struct net_device *ndev;
1013         int ret = 0;
1014
1015         if (!mqp->port)
1016                 return 0;
1017
1018         spin_lock(&mdev->iboe.lock);
1019         ndev = mdev->iboe.netdevs[mqp->port - 1];
1020         if (ndev)
1021                 dev_hold(ndev);
1022         spin_unlock(&mdev->iboe.lock);
1023
1024         if (ndev) {
1025                 rdma_get_mcast_mac((struct in6_addr *)gid, mac);
1026                 rtnl_lock();
1027                 dev_mc_add(mdev->iboe.netdevs[mqp->port - 1], mac, 6, 0);
1028                 ret = 1;
1029                 rtnl_unlock();
1030                 dev_put(ndev);
1031         }
1032
1033         return ret;
1034 }
1035
1036 struct mlx4_ib_steering {
1037         struct list_head list;
1038         u64 reg_id;
1039         union ib_gid gid;
1040 };
1041
1042 static int parse_flow_attr(struct mlx4_dev *dev,
1043                            union ib_flow_spec *ib_spec,
1044                            struct _rule_hw *mlx4_spec)
1045 {
1046         enum mlx4_net_trans_rule_id type;
1047
1048         switch (ib_spec->type) {
1049         case IB_FLOW_SPEC_ETH:
1050                 type = MLX4_NET_TRANS_RULE_ID_ETH;
1051                 memcpy(mlx4_spec->eth.dst_mac, ib_spec->eth.val.dst_mac,
1052                        ETH_ALEN);
1053                 memcpy(mlx4_spec->eth.dst_mac_msk, ib_spec->eth.mask.dst_mac,
1054                        ETH_ALEN);
1055                 mlx4_spec->eth.vlan_tag = ib_spec->eth.val.vlan_tag;
1056                 mlx4_spec->eth.vlan_tag_msk = ib_spec->eth.mask.vlan_tag;
1057                 break;
1058
1059         case IB_FLOW_SPEC_IB:
1060                 type = MLX4_NET_TRANS_RULE_ID_IB;
1061                 mlx4_spec->ib.l3_qpn = ib_spec->ib.val.l3_type_qpn;
1062                 mlx4_spec->ib.qpn_mask = ib_spec->ib.mask.l3_type_qpn;
1063                 memcpy(&mlx4_spec->ib.dst_gid, ib_spec->ib.val.dst_gid, 16);
1064                 memcpy(&mlx4_spec->ib.dst_gid_msk,
1065                        ib_spec->ib.mask.dst_gid, 16);
1066                 break;
1067
1068         case IB_FLOW_SPEC_IPV4:
1069                 type = MLX4_NET_TRANS_RULE_ID_IPV4;
1070                 mlx4_spec->ipv4.src_ip = ib_spec->ipv4.val.src_ip;
1071                 mlx4_spec->ipv4.src_ip_msk = ib_spec->ipv4.mask.src_ip;
1072                 mlx4_spec->ipv4.dst_ip = ib_spec->ipv4.val.dst_ip;
1073                 mlx4_spec->ipv4.dst_ip_msk = ib_spec->ipv4.mask.dst_ip;
1074                 break;
1075
1076         case IB_FLOW_SPEC_TCP:
1077         case IB_FLOW_SPEC_UDP:
1078                 type = ib_spec->type == IB_FLOW_SPEC_TCP ?
1079                                         MLX4_NET_TRANS_RULE_ID_TCP :
1080                                         MLX4_NET_TRANS_RULE_ID_UDP;
1081                 mlx4_spec->tcp_udp.dst_port = ib_spec->tcp_udp.val.dst_port;
1082                 mlx4_spec->tcp_udp.dst_port_msk =
1083                         ib_spec->tcp_udp.mask.dst_port;
1084                 mlx4_spec->tcp_udp.src_port = ib_spec->tcp_udp.val.src_port;
1085                 mlx4_spec->tcp_udp.src_port_msk =
1086                         ib_spec->tcp_udp.mask.src_port;
1087                 break;
1088
1089         default:
1090                 return -EINVAL;
1091         }
1092         if (map_sw_to_hw_steering_id(dev, type) < 0 ||
1093             hw_rule_sz(dev, type) < 0)
1094                 return -EINVAL;
1095         mlx4_spec->id = cpu_to_be16(map_sw_to_hw_steering_id(dev, type));
1096         mlx4_spec->size = hw_rule_sz(dev, type) >> 2;
1097         return hw_rule_sz(dev, type);
1098 }
1099
1100 static int __mlx4_ib_create_flow(struct ib_qp *qp, struct ib_flow_attr *flow_attr,
1101                           int domain,
1102                           enum mlx4_net_trans_promisc_mode flow_type,
1103                           u64 *reg_id)
1104 {
1105         int ret, i;
1106         int size = 0;
1107         void *ib_flow;
1108         struct mlx4_ib_dev *mdev = to_mdev(qp->device);
1109         struct mlx4_cmd_mailbox *mailbox;
1110         struct mlx4_net_trans_rule_hw_ctrl *ctrl;
1111         size_t rule_size = sizeof(struct mlx4_net_trans_rule_hw_ctrl) +
1112                            (sizeof(struct _rule_hw) * flow_attr->num_of_specs);
1113
1114         static const u16 __mlx4_domain[] = {
1115                 [IB_FLOW_DOMAIN_USER] = MLX4_DOMAIN_UVERBS,
1116                 [IB_FLOW_DOMAIN_ETHTOOL] = MLX4_DOMAIN_ETHTOOL,
1117                 [IB_FLOW_DOMAIN_RFS] = MLX4_DOMAIN_RFS,
1118                 [IB_FLOW_DOMAIN_NIC] = MLX4_DOMAIN_NIC,
1119         };
1120
1121         if (flow_attr->priority > MLX4_IB_FLOW_MAX_PRIO) {
1122                 pr_err("Invalid priority value.\n");
1123                 return -EINVAL;
1124         }
1125         if (domain >= IB_FLOW_DOMAIN_NUM) {
1126                 pr_err("Invalid domain value.\n");
1127                 return -EINVAL;
1128         }
1129         if (map_sw_to_hw_steering_mode(mdev->dev, flow_type) < 0)
1130                 return -EINVAL;
1131
1132         mailbox = mlx4_alloc_cmd_mailbox(mdev->dev);
1133         if (IS_ERR(mailbox))
1134                 return PTR_ERR(mailbox);
1135         memset(mailbox->buf, 0, rule_size);
1136         ctrl = mailbox->buf;
1137
1138         ctrl->prio = cpu_to_be16(__mlx4_domain[domain] |
1139                                  flow_attr->priority);
1140         ctrl->type = map_sw_to_hw_steering_mode(mdev->dev, flow_type);
1141         ctrl->port = flow_attr->port;
1142         ctrl->qpn = cpu_to_be32(qp->qp_num);
1143
1144         if (flow_attr->flags & IB_FLOW_ATTR_FLAGS_ALLOW_LOOP_BACK)
1145                 ctrl->flags = (1 << 3);
1146
1147         ib_flow = flow_attr + 1;
1148         size += sizeof(struct mlx4_net_trans_rule_hw_ctrl);
1149         for (i = 0; i < flow_attr->num_of_specs; i++) {
1150                 ret = parse_flow_attr(mdev->dev, ib_flow, mailbox->buf + size);
1151                 if (ret < 0) {
1152                         mlx4_free_cmd_mailbox(mdev->dev, mailbox);
1153                         return -EINVAL;
1154                 }
1155                 ib_flow += ((union ib_flow_spec *)ib_flow)->size;
1156                 size += ret;
1157         }
1158
1159         ret = mlx4_cmd_imm(mdev->dev, mailbox->dma, reg_id, size >> 2, 0,
1160                            MLX4_QP_FLOW_STEERING_ATTACH, MLX4_CMD_TIME_CLASS_A,
1161                            MLX4_CMD_NATIVE);
1162         if (ret == -ENOMEM)
1163                 pr_err("mcg table is full. Fail to register network rule.\n");
1164         else if (ret == -ENXIO)
1165                 pr_err("Device managed flow steering is disabled. Fail to register network rule.\n");
1166         else if (ret)
1167                 pr_err("Invalid argumant. Fail to register network rule.\n");
1168         mlx4_free_cmd_mailbox(mdev->dev, mailbox);
1169         return ret;
1170 }
1171
1172 static int __mlx4_ib_destroy_flow(struct mlx4_dev *dev, u64 reg_id)
1173 {
1174         int err;
1175         err = mlx4_cmd(dev, reg_id, 0, 0,
1176                        MLX4_QP_FLOW_STEERING_DETACH, MLX4_CMD_TIME_CLASS_A,
1177                        MLX4_CMD_NATIVE);
1178         if (err)
1179                 pr_err("Fail to detach network rule. registration id = 0x%llx\n",
1180                        (unsigned long long)reg_id);
1181         return err;
1182 }
1183
1184 static struct ib_flow *mlx4_ib_create_flow(struct ib_qp *qp,
1185                                     struct ib_flow_attr *flow_attr,
1186                                     int domain)
1187 {
1188         int err = 0, i = 0;
1189         struct mlx4_ib_flow *mflow;
1190         enum mlx4_net_trans_promisc_mode type[2];
1191
1192         memset(type, 0, sizeof(type));
1193
1194         mflow = kzalloc(sizeof(struct mlx4_ib_flow), GFP_KERNEL);
1195         if (!mflow) {
1196                 err = -ENOMEM;
1197                 goto err_free;
1198         }
1199
1200         switch (flow_attr->type) {
1201         case IB_FLOW_ATTR_NORMAL:
1202                 type[0] = MLX4_FS_REGULAR;
1203                 break;
1204
1205         case IB_FLOW_ATTR_ALL_DEFAULT:
1206                 type[0] = MLX4_FS_ALL_DEFAULT;
1207                 break;
1208
1209         case IB_FLOW_ATTR_MC_DEFAULT:
1210                 type[0] = MLX4_FS_MC_DEFAULT;
1211                 break;
1212
1213         case IB_FLOW_ATTR_SNIFFER:
1214                 type[0] = MLX4_FS_UC_SNIFFER;
1215                 type[1] = MLX4_FS_MC_SNIFFER;
1216                 break;
1217
1218         default:
1219                 err = -EINVAL;
1220                 goto err_free;
1221         }
1222
1223         while (i < ARRAY_SIZE(type) && type[i]) {
1224                 err = __mlx4_ib_create_flow(qp, flow_attr, domain, type[i],
1225                                             &mflow->reg_id[i]);
1226                 if (err)
1227                         goto err_free;
1228                 i++;
1229         }
1230
1231         return &mflow->ibflow;
1232
1233 err_free:
1234         kfree(mflow);
1235         return ERR_PTR(err);
1236 }
1237
1238 static int mlx4_ib_destroy_flow(struct ib_flow *flow_id)
1239 {
1240         int err, ret = 0;
1241         int i = 0;
1242         struct mlx4_ib_dev *mdev = to_mdev(flow_id->qp->device);
1243         struct mlx4_ib_flow *mflow = to_mflow(flow_id);
1244
1245         while (i < ARRAY_SIZE(mflow->reg_id) && mflow->reg_id[i]) {
1246                 err = __mlx4_ib_destroy_flow(mdev->dev, mflow->reg_id[i]);
1247                 if (err)
1248                         ret = err;
1249                 i++;
1250         }
1251
1252         kfree(mflow);
1253         return ret;
1254 }
1255
1256 static struct mlx4_ib_gid_entry *find_gid_entry(struct mlx4_ib_qp *qp, u8 *raw)
1257 {
1258         struct mlx4_ib_gid_entry *ge;
1259         struct mlx4_ib_gid_entry *tmp;
1260         struct mlx4_ib_gid_entry *ret = NULL;
1261
1262         list_for_each_entry_safe(ge, tmp, &qp->gid_list, list) {
1263                 if (!memcmp(raw, ge->gid.raw, 16)) {
1264                         ret = ge;
1265                         break;
1266                 }
1267         }
1268
1269         return ret;
1270 }
1271
1272
1273 static int del_gid_entry(struct ib_qp *ibqp, union ib_gid *gid)
1274 {
1275         struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
1276         struct mlx4_ib_qp *mqp = to_mqp(ibqp);
1277         struct mlx4_ib_gid_entry *ge;
1278         struct net_device *ndev;
1279         u8 mac[6];
1280
1281         mutex_lock(&mqp->mutex);
1282         ge = find_gid_entry(mqp, gid->raw);
1283         if (ge) {
1284                 spin_lock(&mdev->iboe.lock);
1285                 ndev = ge->added ? mdev->iboe.netdevs[ge->port - 1] : NULL;
1286                 if (ndev)
1287                         dev_hold(ndev);
1288                 spin_unlock(&mdev->iboe.lock);
1289                 rdma_get_mcast_mac((struct in6_addr *)gid, mac);
1290                 if (ndev) {
1291                         rtnl_lock();
1292                         dev_mc_delete(mdev->iboe.netdevs[ge->port - 1], mac, 6, 0);
1293                         rtnl_unlock();
1294                         dev_put(ndev);
1295                 }
1296                 list_del(&ge->list);
1297                 kfree(ge);
1298         } else
1299                 pr_warn("could not find mgid entry\n");
1300
1301         mutex_unlock(&mqp->mutex);
1302         return ge != NULL ? 0 : -EINVAL;
1303 }
1304
1305 static int _mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid,
1306                                int count)
1307 {
1308         int err;
1309         struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
1310         struct mlx4_ib_qp *mqp = to_mqp(ibqp);
1311         u64 reg_id = 0;
1312         int record_err = 0;
1313
1314         if (mdev->dev->caps.steering_mode ==
1315             MLX4_STEERING_MODE_DEVICE_MANAGED) {
1316                 struct mlx4_ib_steering *ib_steering;
1317                 struct mlx4_ib_steering *tmp;
1318                 LIST_HEAD(temp);
1319
1320                 mutex_lock(&mqp->mutex);
1321                 list_for_each_entry_safe(ib_steering, tmp, &mqp->steering_rules,
1322                                          list) {
1323                         if (memcmp(ib_steering->gid.raw, gid->raw, 16))
1324                                 continue;
1325
1326                         if (--count < 0)
1327                                 break;
1328
1329                         list_del(&ib_steering->list);
1330                         list_add(&ib_steering->list, &temp);
1331                 }
1332                 mutex_unlock(&mqp->mutex);
1333                 list_for_each_entry_safe(ib_steering, tmp, &temp,
1334                                          list) {
1335                         reg_id = ib_steering->reg_id;
1336
1337                         err = mlx4_multicast_detach(mdev->dev, &mqp->mqp,
1338                                         gid->raw,
1339                                         (ibqp->qp_type == IB_QPT_RAW_PACKET) ?
1340                                         MLX4_PROT_ETH : MLX4_PROT_IB_IPV6,
1341                                         reg_id);
1342                         if (err) {
1343                                 record_err = record_err ?: err;
1344                                 continue;
1345                         }
1346
1347                         err = del_gid_entry(ibqp, gid);
1348                         if (err) {
1349                                 record_err = record_err ?: err;
1350                                 continue;
1351                         }
1352
1353                         list_del(&ib_steering->list);
1354                         kfree(ib_steering);
1355                 }
1356                 mutex_lock(&mqp->mutex);
1357                 list_for_each_entry(ib_steering, &temp, list) {
1358                         list_add(&ib_steering->list, &mqp->steering_rules);
1359                 }
1360                 mutex_unlock(&mqp->mutex);
1361                 if (count) {
1362                         pr_warn("Couldn't release all reg_ids for mgid. Steering rule is left attached\n");
1363                         return -EINVAL;
1364                 }
1365
1366         } else {
1367                 if (mdev->dev->caps.steering_mode == MLX4_STEERING_MODE_B0 &&
1368                     ibqp->qp_type == IB_QPT_RAW_PACKET)
1369                         gid->raw[5] = mqp->port;
1370
1371                 err = mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw,
1372                                 (ibqp->qp_type == IB_QPT_RAW_PACKET) ?
1373                                 MLX4_PROT_ETH : MLX4_PROT_IB_IPV6,
1374                                 reg_id);
1375                 if (err)
1376                         return err;
1377
1378                 err = del_gid_entry(ibqp, gid);
1379
1380                 if (err)
1381                         return err;
1382         }
1383
1384         return record_err;
1385 }
1386
1387 static int mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
1388 {
1389         struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
1390         int count = (mdev->dev->caps.steering_mode ==
1391                      MLX4_STEERING_MODE_DEVICE_MANAGED) ?
1392                     mdev->dev->caps.num_ports : 1;
1393
1394         return _mlx4_ib_mcg_detach(ibqp, gid, lid, count);
1395 }
1396
1397 static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
1398 {
1399         int err = -ENODEV;
1400         struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
1401         struct mlx4_ib_qp *mqp = to_mqp(ibqp);
1402         DECLARE_BITMAP(ports, MLX4_MAX_PORTS);
1403         int i = 0;
1404
1405         if (mdev->dev->caps.steering_mode == MLX4_STEERING_MODE_B0 &&
1406             ibqp->qp_type == IB_QPT_RAW_PACKET)
1407                 gid->raw[5] = mqp->port;
1408
1409         if (mdev->dev->caps.steering_mode ==
1410             MLX4_STEERING_MODE_DEVICE_MANAGED) {
1411                 bitmap_fill(ports, mdev->dev->caps.num_ports);
1412         } else {
1413                 if (mqp->port <= mdev->dev->caps.num_ports) {
1414                         bitmap_zero(ports, mdev->dev->caps.num_ports);
1415                         set_bit(0, ports);
1416                 } else {
1417                         return -EINVAL;
1418                 }
1419         }
1420
1421         for (; i < mdev->dev->caps.num_ports; i++) {
1422                 u64 reg_id;
1423                 struct mlx4_ib_steering *ib_steering = NULL;
1424                 if (!test_bit(i, ports))
1425                         continue;
1426                 if (mdev->dev->caps.steering_mode ==
1427                     MLX4_STEERING_MODE_DEVICE_MANAGED) {
1428                         ib_steering = kmalloc(sizeof(*ib_steering), GFP_KERNEL);
1429                         if (!ib_steering)
1430                                 goto err_add;
1431                 }
1432
1433                 err = mlx4_multicast_attach(mdev->dev, &mqp->mqp,
1434                         gid->raw, i + 1,
1435                         !!(mqp->flags &
1436                                 MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK),
1437                         (ibqp->qp_type == IB_QPT_RAW_PACKET) ?
1438                         MLX4_PROT_ETH : MLX4_PROT_IB_IPV6,
1439                         &reg_id);
1440                 if (err) {
1441                         kfree(ib_steering);
1442                         goto err_add;
1443                 }
1444
1445                 err = add_gid_entry(ibqp, gid);
1446                 if (err) {
1447                         mlx4_multicast_detach(mdev->dev, &mqp->mqp, gid->raw,
1448                                               MLX4_PROT_IB_IPV6, reg_id);
1449                         kfree(ib_steering);
1450                         goto err_add;
1451                 }
1452
1453                 if (ib_steering) {
1454                         memcpy(ib_steering->gid.raw, gid->raw, 16);
1455                         mutex_lock(&mqp->mutex);
1456                         list_add(&ib_steering->list, &mqp->steering_rules);
1457                         mutex_unlock(&mqp->mutex);
1458                         ib_steering->reg_id = reg_id;
1459                 }
1460         }
1461
1462
1463         return 0;
1464
1465 err_add:
1466         if (i > 0)
1467                 _mlx4_ib_mcg_detach(ibqp, gid, lid, i);
1468
1469         return err;
1470 }
1471
1472 static int init_node_data(struct mlx4_ib_dev *dev)
1473 {
1474         struct ib_smp *in_mad  = NULL;
1475         struct ib_smp *out_mad = NULL;
1476         int mad_ifc_flags = MLX4_MAD_IFC_IGNORE_KEYS;
1477         int err = -ENOMEM;
1478
1479         in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
1480         out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
1481         if (!in_mad || !out_mad)
1482                 goto out;
1483
1484         init_query_mad(in_mad);
1485         in_mad->attr_id = IB_SMP_ATTR_NODE_DESC;
1486         if (mlx4_is_master(dev->dev))
1487                 mad_ifc_flags |= MLX4_MAD_IFC_NET_VIEW;
1488
1489         err = mlx4_MAD_IFC(dev, mad_ifc_flags, 1, NULL, NULL, in_mad, out_mad);
1490         if (err)
1491                 goto out;
1492
1493         memcpy(dev->ib_dev.node_desc, out_mad->data, 64);
1494
1495         in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
1496
1497         err = mlx4_MAD_IFC(dev, mad_ifc_flags, 1, NULL, NULL, in_mad, out_mad);
1498         if (err)
1499                 goto out;
1500
1501         dev->dev->rev_id = be32_to_cpup((__be32 *) (out_mad->data + 32));
1502         memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8);
1503
1504 out:
1505         kfree(in_mad);
1506         kfree(out_mad);
1507         return err;
1508 }
1509
1510 static ssize_t show_hca(struct device *device, struct device_attribute *attr,
1511                         char *buf)
1512 {
1513         struct mlx4_ib_dev *dev =
1514                 container_of(device, struct mlx4_ib_dev, ib_dev.dev);
1515         return sprintf(buf, "MT%d\n", dev->dev->pdev->device);
1516 }
1517
1518 static ssize_t show_fw_ver(struct device *device, struct device_attribute *attr,
1519                            char *buf)
1520 {
1521         struct mlx4_ib_dev *dev =
1522                 container_of(device, struct mlx4_ib_dev, ib_dev.dev);
1523         return sprintf(buf, "%d.%d.%d\n", (int) (dev->dev->caps.fw_ver >> 32),
1524                        (int) (dev->dev->caps.fw_ver >> 16) & 0xffff,
1525                        (int) dev->dev->caps.fw_ver & 0xffff);
1526 }
1527
1528 static ssize_t show_rev(struct device *device, struct device_attribute *attr,
1529                         char *buf)
1530 {
1531         struct mlx4_ib_dev *dev =
1532                 container_of(device, struct mlx4_ib_dev, ib_dev.dev);
1533         return sprintf(buf, "%x\n", dev->dev->rev_id);
1534 }
1535
1536 static ssize_t show_board(struct device *device, struct device_attribute *attr,
1537                           char *buf)
1538 {
1539         struct mlx4_ib_dev *dev =
1540                 container_of(device, struct mlx4_ib_dev, ib_dev.dev);
1541         return sprintf(buf, "%.*s\n", MLX4_BOARD_ID_LEN,
1542                        dev->dev->board_id);
1543 }
1544
1545 static ssize_t show_vsd(struct device *device, struct device_attribute *attr,
1546                           char *buf)
1547 {
1548         struct mlx4_ib_dev *dev =
1549                 container_of(device, struct mlx4_ib_dev, ib_dev.dev);
1550         ssize_t len = MLX4_VSD_LEN;
1551
1552         if (dev->dev->vsd_vendor_id == PCI_VENDOR_ID_MELLANOX)
1553                 len = sprintf(buf, "%.*s\n", MLX4_VSD_LEN, dev->dev->vsd);
1554         else
1555                 memcpy(buf, dev->dev->vsd, MLX4_VSD_LEN);
1556
1557         return len;
1558 }
1559
1560 static DEVICE_ATTR(hw_rev,   S_IRUGO, show_rev,    NULL);
1561 static DEVICE_ATTR(fw_ver,   S_IRUGO, show_fw_ver, NULL);
1562 static DEVICE_ATTR(hca_type, S_IRUGO, show_hca,    NULL);
1563 static DEVICE_ATTR(board_id, S_IRUGO, show_board,  NULL);
1564 static DEVICE_ATTR(vsd,      S_IRUGO, show_vsd,    NULL);
1565
1566 static struct device_attribute *mlx4_class_attributes[] = {
1567         &dev_attr_hw_rev,
1568         &dev_attr_fw_ver,
1569         &dev_attr_hca_type,
1570         &dev_attr_board_id,
1571         &dev_attr_vsd
1572 };
1573
1574 static void mlx4_addrconf_ifid_eui48(u8 *eui, u16 vlan_id, struct net_device *dev, u8 port)
1575 {
1576         memcpy(eui, IF_LLADDR(dev), 3);
1577         memcpy(eui + 5, IF_LLADDR(dev) + 3, 3);
1578         if (vlan_id < 0x1000) {
1579                 eui[3] = vlan_id >> 8;
1580                 eui[4] = vlan_id & 0xff;
1581         } else {
1582                 eui[3] = 0xff;
1583                 eui[4] = 0xfe;
1584         }
1585         eui[0] ^= 2;
1586 }
1587
1588 static void update_gids_task(struct work_struct *work)
1589 {
1590         struct update_gid_work *gw = container_of(work, struct update_gid_work, work);
1591         struct mlx4_cmd_mailbox *mailbox;
1592         union ib_gid *gids;
1593         int err;
1594         struct mlx4_dev *dev = gw->dev->dev;
1595
1596
1597         mailbox = mlx4_alloc_cmd_mailbox(dev);
1598         if (IS_ERR(mailbox)) {
1599                 pr_warn("update gid table failed %ld\n", PTR_ERR(mailbox));
1600                 goto free;
1601         }
1602
1603         gids = mailbox->buf;
1604         memcpy(gids, gw->gids, sizeof gw->gids);
1605
1606         if (mlx4_ib_port_link_layer(&gw->dev->ib_dev, gw->port) ==
1607                                         IB_LINK_LAYER_ETHERNET) {
1608                 err = mlx4_cmd(dev, mailbox->dma,
1609                                MLX4_SET_PORT_GID_TABLE << 8 | gw->port,
1610                                1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B,
1611                                MLX4_CMD_WRAPPED);
1612
1613                 if (err)
1614                         pr_warn("set port command failed\n");
1615                 else
1616                         mlx4_ib_dispatch_event(gw->dev, gw->port,
1617                                                IB_EVENT_GID_CHANGE);
1618         }
1619
1620         mlx4_free_cmd_mailbox(dev, mailbox);
1621 free:
1622         kfree(gw);
1623 }
1624
1625 static struct net_device *mlx4_ib_get_netdev(struct ib_device *device, u8 port_num)
1626 {
1627         struct mlx4_ib_dev *ibdev = to_mdev(device);
1628         return mlx4_get_protocol_dev(ibdev->dev, MLX4_PROT_ETH, port_num);
1629 }
1630
1631 static void reset_gids_task(struct work_struct *work)
1632 {
1633         struct update_gid_work *gw =
1634                         container_of(work, struct update_gid_work, work);
1635         struct mlx4_cmd_mailbox *mailbox;
1636         union ib_gid *gids;
1637         int err;
1638         struct mlx4_dev *dev = gw->dev->dev;
1639
1640         mailbox = mlx4_alloc_cmd_mailbox(dev);
1641         if (IS_ERR(mailbox)) {
1642                 pr_warn("reset gid table failed\n");
1643                 goto free;
1644         }
1645
1646         gids = mailbox->buf;
1647         memcpy(gids, gw->gids, sizeof(gw->gids));
1648
1649         if (mlx4_ib_port_link_layer(&gw->dev->ib_dev, 1) ==
1650                                         IB_LINK_LAYER_ETHERNET &&
1651                                         dev->caps.num_ports > 0) {
1652                 err = mlx4_cmd(dev, mailbox->dma,
1653                                MLX4_SET_PORT_GID_TABLE << 8 | 1,
1654                                1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B,
1655                                MLX4_CMD_WRAPPED);
1656                 if (err)
1657                         pr_warn("set port 1 command failed\n");
1658         }
1659
1660         if (mlx4_ib_port_link_layer(&gw->dev->ib_dev, 2) ==
1661                                         IB_LINK_LAYER_ETHERNET &&
1662                                         dev->caps.num_ports > 1) {
1663                 err = mlx4_cmd(dev, mailbox->dma,
1664                                MLX4_SET_PORT_GID_TABLE << 8 | 2,
1665                                1, MLX4_CMD_SET_PORT, MLX4_CMD_TIME_CLASS_B,
1666                                MLX4_CMD_WRAPPED);
1667                 if (err)
1668                         pr_warn("set port 2 command failed\n");
1669         }
1670
1671         mlx4_free_cmd_mailbox(dev, mailbox);
1672 free:
1673         kfree(gw);
1674 }
1675
1676 static int update_gid_table(struct mlx4_ib_dev *dev, int port,
1677                 union ib_gid *gid, int clear, int default_gid)
1678 {
1679         struct update_gid_work *work;
1680         int i;
1681         int need_update = 0;
1682         int free = -1;
1683         int found = -1;
1684         int max_gids;
1685         int start_index = !default_gid;
1686
1687         max_gids = dev->dev->caps.gid_table_len[port];
1688         for (i = start_index; i < max_gids; ++i) {
1689                 if (!memcmp(&dev->iboe.gid_table[port - 1][i], gid,
1690                     sizeof(*gid)))
1691                         found = i;
1692
1693                 if (clear) {
1694                         if (found >= 0) {
1695                                 need_update = 1;
1696                                 dev->iboe.gid_table[port - 1][found] = zgid;
1697                                 break;
1698                         }
1699                 } else {
1700                         if (found >= 0)
1701                                 break;
1702
1703                         if (free < 0 &&
1704                             !memcmp(&dev->iboe.gid_table[port - 1][i],
1705                                     &zgid, sizeof(*gid)))
1706                                 free = i;
1707                 }
1708         }
1709
1710         if (found == -1 && !clear && free < 0) {
1711                 pr_err("GID table of port %d is full. Can't add "GID_PRINT_FMT"\n",
1712                        port, GID_PRINT_ARGS(gid));
1713                 return -ENOMEM;
1714         }
1715         if (found == -1 && clear) {
1716                 pr_err(GID_PRINT_FMT" is not in GID table of port %d\n", GID_PRINT_ARGS(gid), port);
1717                 return -EINVAL;
1718         }
1719         if (found == -1 && !clear && free >= 0) {
1720                 dev->iboe.gid_table[port - 1][free] = *gid;
1721                 need_update = 1;
1722         }
1723
1724         if (!need_update)
1725                 return 0;
1726
1727         work = kzalloc(sizeof *work, GFP_ATOMIC);
1728         if (!work)
1729                 return -ENOMEM;
1730
1731         memcpy(work->gids, dev->iboe.gid_table[port - 1], sizeof(work->gids));
1732         INIT_WORK(&work->work, update_gids_task);
1733         work->port = port;
1734         work->dev = dev;
1735         queue_work(wq, &work->work);
1736
1737         return 0;
1738 }
1739
1740 static int reset_gid_table(struct mlx4_ib_dev *dev)
1741 {
1742         struct update_gid_work *work;
1743
1744
1745         work = kzalloc(sizeof(*work), GFP_ATOMIC);
1746         if (!work)
1747                 return -ENOMEM;
1748
1749         memset(dev->iboe.gid_table, 0, sizeof(dev->iboe.gid_table));
1750         memset(work->gids, 0, sizeof(work->gids));
1751         INIT_WORK(&work->work, reset_gids_task);
1752         work->dev = dev;
1753         queue_work(wq, &work->work);
1754         return 0;
1755 }
1756
1757 /* XXX BOND Related - stub (no support for these flags in FBSD)*/
1758 static inline int netif_is_bond_master(struct net_device *dev)
1759 {
1760 #if 0
1761         return (dev->flags & IFF_MASTER) && (dev->priv_flags & IFF_BONDING);
1762 #endif
1763         return 0;
1764 }
1765
1766 static void mlx4_make_default_gid(struct  net_device *dev, union ib_gid *gid, u8 port)
1767 {
1768         gid->global.subnet_prefix = cpu_to_be64(0xfe80000000000000LL);
1769         mlx4_addrconf_ifid_eui48(&gid->raw[8], 0xffff, dev, port);
1770 }
1771
1772 static u8 mlx4_ib_get_dev_port(struct net_device *dev, struct mlx4_ib_dev *ibdev)
1773 {
1774         u8 port = 0;
1775         struct mlx4_ib_iboe *iboe;
1776         struct net_device *real_dev = rdma_vlan_dev_real_dev(dev) ?
1777                                 rdma_vlan_dev_real_dev(dev) : dev;
1778
1779         iboe = &ibdev->iboe;
1780
1781         for (port = 1; port <= MLX4_MAX_PORTS; ++port)
1782                 if ((netif_is_bond_master(real_dev) && (real_dev == iboe->masters[port - 1])) ||
1783                     (!netif_is_bond_master(real_dev) && (real_dev == iboe->netdevs[port - 1])))
1784                         break;
1785
1786         return port > MLX4_MAX_PORTS ? 0 : port;
1787 }
1788
1789 static void mlx4_ib_get_dev_addr(struct net_device *dev, struct mlx4_ib_dev *ibdev, u8 port)
1790 {
1791         struct ifaddr *ifa;
1792 #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
1793         struct inet6_dev *in6_dev;
1794         union ib_gid  *pgid;
1795         struct inet6_ifaddr *ifp;
1796 #endif
1797         union ib_gid gid;
1798
1799
1800         if ((port == 0) || (port > MLX4_MAX_PORTS))
1801                 return;
1802
1803         /* IPv4 gids */
1804         TAILQ_FOREACH(ifa, &dev->if_addrhead, ifa_link) {
1805                 if (ifa->ifa_addr && ifa->ifa_addr->sa_family == AF_INET){
1806                         ipv6_addr_set_v4mapped(
1807                                 ((struct sockaddr_in *) ifa->ifa_addr)->sin_addr.s_addr,
1808                                 (struct in6_addr *)&gid);
1809                         update_gid_table(ibdev, port, &gid, 0, 0);
1810                 }
1811
1812         }
1813 #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
1814         /* IPv6 gids */
1815         in6_dev = in6_dev_get(dev);
1816         if (in6_dev) {
1817                 read_lock_bh(&in6_dev->lock);
1818                 list_for_each_entry(ifp, &in6_dev->addr_list, if_list) {
1819                         pgid = (union ib_gid *)&ifp->addr;
1820                                 update_gid_table(ibdev, port, pgid, 0, 0);
1821                         }
1822                 read_unlock_bh(&in6_dev->lock);
1823                 in6_dev_put(in6_dev);
1824                 }
1825 #endif
1826 }
1827
1828 static void mlx4_set_default_gid(struct mlx4_ib_dev *ibdev,
1829                                  struct  net_device *dev, u8 port)
1830 {
1831         union ib_gid gid;
1832         mlx4_make_default_gid(dev, &gid, port);
1833         update_gid_table(ibdev, port, &gid, 0, 1);
1834 }
1835
1836 static int mlx4_ib_init_gid_table(struct mlx4_ib_dev *ibdev)
1837 {
1838         struct  net_device *dev;
1839
1840         if (reset_gid_table(ibdev))
1841                 return -1;
1842
1843         IFNET_RLOCK_NOSLEEP();
1844         TAILQ_FOREACH(dev, &V_ifnet, if_link) {
1845                 u8 port = mlx4_ib_get_dev_port(dev, ibdev);
1846                 if (port) {
1847                         if (!rdma_vlan_dev_real_dev(dev) &&
1848                             !netif_is_bond_master(dev))
1849                                 mlx4_set_default_gid(ibdev, dev, port);
1850                         mlx4_ib_get_dev_addr(dev, ibdev, port);
1851                 }
1852         }
1853
1854         IFNET_RUNLOCK_NOSLEEP();
1855
1856         return 0;
1857 }
1858
1859 static void mlx4_ib_scan_netdevs(struct mlx4_ib_dev *ibdev,
1860                                  struct net_device *dev, unsigned long event)
1861 {
1862         struct mlx4_ib_iboe *iboe;
1863         int port;
1864         int init = 0;
1865         unsigned long flags;
1866
1867         iboe = &ibdev->iboe;
1868
1869         spin_lock_irqsave(&iboe->lock, flags);
1870         mlx4_foreach_ib_transport_port(port, ibdev->dev) {
1871                 struct net_device *old_netdev = iboe->netdevs[port - 1];
1872 /* XXX BOND related */
1873 #if 0
1874                 struct net_device *old_master = iboe->masters[port - 1];
1875 #endif
1876                 iboe->masters[port - 1] = NULL;
1877                 iboe->netdevs[port - 1] =
1878                         mlx4_get_protocol_dev(ibdev->dev, MLX4_PROT_ETH, port);
1879
1880
1881                 if (old_netdev != iboe->netdevs[port - 1])
1882                         init = 1;
1883                 if (dev == iboe->netdevs[port - 1] &&
1884                     event == NETDEV_CHANGEADDR)
1885                         init = 1;
1886 /* XXX BOND related */
1887 #if 0
1888                 if (iboe->netdevs[port - 1] && netif_is_bond_slave(iboe->netdevs[port - 1]))
1889                         iboe->masters[port - 1] = iboe->netdevs[port - 1]->master;
1890
1891                 /* if bonding is used it is possible that we add it to masters only after
1892                    IP address is assigned to the net bonding interface */
1893                 if (old_master != iboe->masters[port - 1])
1894                         init = 1;
1895 #endif
1896         }
1897
1898         spin_unlock_irqrestore(&iboe->lock, flags);
1899
1900         if (init)
1901                 if (mlx4_ib_init_gid_table(ibdev))
1902                         pr_warn("Fail to reset gid table\n");
1903 }
1904
1905 static int mlx4_ib_netdev_event(struct notifier_block *this, unsigned long event,
1906                                 void *ptr)
1907 {
1908         struct net_device *dev = ptr;
1909         struct mlx4_ib_dev *ibdev;
1910
1911         ibdev = container_of(this, struct mlx4_ib_dev, iboe.nb);
1912
1913         mlx4_ib_scan_netdevs(ibdev, dev, event);
1914
1915         return NOTIFY_DONE;
1916 }
1917
1918 /* This function initializes the gid table only if the event_netdev real device is an iboe
1919  * device, will be invoked by the inet/inet6 events */
1920 static int mlx4_ib_inet_event(struct notifier_block *this, unsigned long event,
1921                                 void *ptr)
1922 {
1923         struct net_device *event_netdev = ptr;
1924         struct mlx4_ib_dev *ibdev;
1925         struct mlx4_ib_iboe *ibdev_iboe;
1926         int port = 0;
1927
1928         ibdev = container_of(this, struct mlx4_ib_dev, iboe.nb_inet);
1929
1930         struct net_device *real_dev = rdma_vlan_dev_real_dev(event_netdev) ?
1931                         rdma_vlan_dev_real_dev(event_netdev) :
1932                         event_netdev;
1933
1934         ibdev_iboe = &ibdev->iboe;
1935
1936         port = mlx4_ib_get_dev_port(real_dev, ibdev);
1937
1938         /* Perform init_gid_table if the event real_dev is the net_device which represents this port,
1939          * otherwise this event is not related and would be ignored.*/
1940         if(port && (real_dev == ibdev_iboe->netdevs[port - 1]))
1941                 if (mlx4_ib_init_gid_table(ibdev))
1942                         pr_warn("Fail to reset gid table\n");
1943
1944         return NOTIFY_DONE;
1945 }
1946
1947
1948 static void init_pkeys(struct mlx4_ib_dev *ibdev)
1949 {
1950         int port;
1951         int slave;
1952         int i;
1953
1954         if (mlx4_is_master(ibdev->dev)) {
1955                 for (slave = 0; slave <= ibdev->dev->num_vfs; ++slave) {
1956                         for (port = 1; port <= ibdev->dev->caps.num_ports; ++port) {
1957                                 for (i = 0;
1958                                      i < ibdev->dev->phys_caps.pkey_phys_table_len[port];
1959                                      ++i) {
1960                                         ibdev->pkeys.virt2phys_pkey[slave][port - 1][i] =
1961                                         /* master has the identity virt2phys pkey mapping */
1962                                                 (slave == mlx4_master_func_num(ibdev->dev) || !i) ? i :
1963                                                         ibdev->dev->phys_caps.pkey_phys_table_len[port] - 1;
1964                                         mlx4_sync_pkey_table(ibdev->dev, slave, port, i,
1965                                                              ibdev->pkeys.virt2phys_pkey[slave][port - 1][i]);
1966                                 }
1967                         }
1968                 }
1969                 /* initialize pkey cache */
1970                 for (port = 1; port <= ibdev->dev->caps.num_ports; ++port) {
1971                         for (i = 0;
1972                              i < ibdev->dev->phys_caps.pkey_phys_table_len[port];
1973                              ++i)
1974                                 ibdev->pkeys.phys_pkey_cache[port-1][i] =
1975                                         (i) ? 0 : 0xFFFF;
1976                 }
1977         }
1978 }
1979
1980 static void mlx4_ib_alloc_eqs(struct mlx4_dev *dev, struct mlx4_ib_dev *ibdev)
1981 {
1982         char name[32];
1983         int eq_per_port = 0;
1984         int added_eqs = 0;
1985         int total_eqs = 0;
1986         int i, j, eq;
1987
1988         /* Legacy mode or comp_pool is not large enough */
1989         if (dev->caps.comp_pool == 0 ||
1990             dev->caps.num_ports > dev->caps.comp_pool)
1991                 return;
1992
1993         eq_per_port = rounddown_pow_of_two(dev->caps.comp_pool/
1994                                         dev->caps.num_ports);
1995
1996         /* Init eq table */
1997         added_eqs = 0;
1998         mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB)
1999                 added_eqs += eq_per_port;
2000
2001         total_eqs = dev->caps.num_comp_vectors + added_eqs;
2002
2003         ibdev->eq_table = kzalloc(total_eqs * sizeof(int), GFP_KERNEL);
2004         if (!ibdev->eq_table)
2005                 return;
2006
2007         ibdev->eq_added = added_eqs;
2008
2009         eq = 0;
2010         mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB) {
2011                 for (j = 0; j < eq_per_port; j++) {
2012                         sprintf(name, "mlx4-ib-%d-%d@%d:%d:%d:%d", i, j,
2013                                                 pci_get_domain(dev->pdev->dev.bsddev),
2014                                                 pci_get_bus(dev->pdev->dev.bsddev),
2015                                                 PCI_SLOT(dev->pdev->devfn),
2016                                                 PCI_FUNC(dev->pdev->devfn));
2017
2018                         /* Set IRQ for specific name (per ring) */
2019                         if (mlx4_assign_eq(dev, name,
2020                                            &ibdev->eq_table[eq])) {
2021                                 /* Use legacy (same as mlx4_en driver) */
2022                                 pr_warn("Can't allocate EQ %d; reverting to legacy\n", eq);
2023                                 ibdev->eq_table[eq] =
2024                                         (eq % dev->caps.num_comp_vectors);
2025                         }
2026                         eq++;
2027                 }
2028         }
2029
2030         /* Fill the reset of the vector with legacy EQ */
2031         for (i = 0, eq = added_eqs; i < dev->caps.num_comp_vectors; i++)
2032                 ibdev->eq_table[eq++] = i;
2033
2034         /* Advertise the new number of EQs to clients */
2035         ibdev->ib_dev.num_comp_vectors = total_eqs;
2036 }
2037
2038 static void mlx4_ib_free_eqs(struct mlx4_dev *dev, struct mlx4_ib_dev *ibdev)
2039 {
2040         int i;
2041
2042         /* no additional eqs were added */
2043         if (!ibdev->eq_table)
2044                 return;
2045
2046         /* Reset the advertised EQ number */
2047         ibdev->ib_dev.num_comp_vectors = dev->caps.num_comp_vectors;
2048
2049         /* Free only the added eqs */
2050         for (i = 0; i < ibdev->eq_added; i++) {
2051                 /* Don't free legacy eqs if used */
2052                 if (ibdev->eq_table[i] <= dev->caps.num_comp_vectors)
2053                         continue;
2054                 mlx4_release_eq(dev, ibdev->eq_table[i]);
2055         }
2056
2057         kfree(ibdev->eq_table);
2058 }
2059
2060 /*
2061  * create show function and a device_attribute struct pointing to
2062  * the function for _name
2063  */
2064 #define DEVICE_DIAG_RPRT_ATTR(_name, _offset, _op_mod)          \
2065 static ssize_t show_rprt_##_name(struct device *dev,            \
2066                                  struct device_attribute *attr, \
2067                                  char *buf){                    \
2068         return show_diag_rprt(dev, buf, _offset, _op_mod);      \
2069 }                                                               \
2070 static DEVICE_ATTR(_name, S_IRUGO, show_rprt_##_name, NULL);
2071
2072 #define MLX4_DIAG_RPRT_CLEAR_DIAGS 3
2073
2074 static size_t show_diag_rprt(struct device *device, char *buf,
2075                              u32 offset, u8 op_modifier)
2076 {
2077         size_t ret;
2078         u32 counter_offset = offset;
2079         u32 diag_counter = 0;
2080         struct mlx4_ib_dev *dev = container_of(device, struct mlx4_ib_dev,
2081                                                ib_dev.dev);
2082
2083         ret = mlx4_query_diag_counters(dev->dev, 1, op_modifier,
2084                                        &counter_offset, &diag_counter);
2085         if (ret)
2086                 return ret;
2087
2088         return sprintf(buf, "%d\n", diag_counter);
2089 }
2090
2091 static ssize_t clear_diag_counters(struct device *device,
2092                                    struct device_attribute *attr,
2093                                    const char *buf, size_t length)
2094 {
2095         size_t ret;
2096         struct mlx4_ib_dev *dev = container_of(device, struct mlx4_ib_dev,
2097                                                ib_dev.dev);
2098
2099         ret = mlx4_query_diag_counters(dev->dev, 0, MLX4_DIAG_RPRT_CLEAR_DIAGS,
2100                                        NULL, NULL);
2101         if (ret)
2102                 return ret;
2103
2104         return length;
2105 }
2106
2107 DEVICE_DIAG_RPRT_ATTR(rq_num_lle        , 0x00, 2);
2108 DEVICE_DIAG_RPRT_ATTR(sq_num_lle        , 0x04, 2);
2109 DEVICE_DIAG_RPRT_ATTR(rq_num_lqpoe      , 0x08, 2);
2110 DEVICE_DIAG_RPRT_ATTR(sq_num_lqpoe      , 0x0C, 2);
2111 DEVICE_DIAG_RPRT_ATTR(rq_num_lpe        , 0x18, 2);
2112 DEVICE_DIAG_RPRT_ATTR(sq_num_lpe        , 0x1C, 2);
2113 DEVICE_DIAG_RPRT_ATTR(rq_num_wrfe       , 0x20, 2);
2114 DEVICE_DIAG_RPRT_ATTR(sq_num_wrfe       , 0x24, 2);
2115 DEVICE_DIAG_RPRT_ATTR(sq_num_mwbe       , 0x2C, 2);
2116 DEVICE_DIAG_RPRT_ATTR(sq_num_bre        , 0x34, 2);
2117 DEVICE_DIAG_RPRT_ATTR(rq_num_lae        , 0x38, 2);
2118 DEVICE_DIAG_RPRT_ATTR(sq_num_rire       , 0x44, 2);
2119 DEVICE_DIAG_RPRT_ATTR(rq_num_rire       , 0x48, 2);
2120 DEVICE_DIAG_RPRT_ATTR(sq_num_rae        , 0x4C, 2);
2121 DEVICE_DIAG_RPRT_ATTR(rq_num_rae        , 0x50, 2);
2122 DEVICE_DIAG_RPRT_ATTR(sq_num_roe        , 0x54, 2);
2123 DEVICE_DIAG_RPRT_ATTR(sq_num_tree       , 0x5C, 2);
2124 DEVICE_DIAG_RPRT_ATTR(sq_num_rree       , 0x64, 2);
2125 DEVICE_DIAG_RPRT_ATTR(rq_num_rnr        , 0x68, 2);
2126 DEVICE_DIAG_RPRT_ATTR(sq_num_rnr        , 0x6C, 2);
2127 DEVICE_DIAG_RPRT_ATTR(rq_num_oos        , 0x100, 2);
2128 DEVICE_DIAG_RPRT_ATTR(sq_num_oos        , 0x104, 2);
2129 DEVICE_DIAG_RPRT_ATTR(rq_num_mce        , 0x108, 2);
2130 DEVICE_DIAG_RPRT_ATTR(rq_num_udsdprd    , 0x118, 2);
2131 DEVICE_DIAG_RPRT_ATTR(rq_num_ucsdprd    , 0x120, 2);
2132 DEVICE_DIAG_RPRT_ATTR(num_cqovf         , 0x1A0, 2);
2133 DEVICE_DIAG_RPRT_ATTR(num_eqovf         , 0x1A4, 2);
2134 DEVICE_DIAG_RPRT_ATTR(num_baddb         , 0x1A8, 2);
2135
2136 static DEVICE_ATTR(clear_diag, S_IWUSR, NULL, clear_diag_counters);
2137
2138 static struct attribute *diag_rprt_attrs[] = {
2139         &dev_attr_rq_num_lle.attr,
2140         &dev_attr_sq_num_lle.attr,
2141         &dev_attr_rq_num_lqpoe.attr,
2142         &dev_attr_sq_num_lqpoe.attr,
2143         &dev_attr_rq_num_lpe.attr,
2144         &dev_attr_sq_num_lpe.attr,
2145         &dev_attr_rq_num_wrfe.attr,
2146         &dev_attr_sq_num_wrfe.attr,
2147         &dev_attr_sq_num_mwbe.attr,
2148         &dev_attr_sq_num_bre.attr,
2149         &dev_attr_rq_num_lae.attr,
2150         &dev_attr_sq_num_rire.attr,
2151         &dev_attr_rq_num_rire.attr,
2152         &dev_attr_sq_num_rae.attr,
2153         &dev_attr_rq_num_rae.attr,
2154         &dev_attr_sq_num_roe.attr,
2155         &dev_attr_sq_num_tree.attr,
2156         &dev_attr_sq_num_rree.attr,
2157         &dev_attr_rq_num_rnr.attr,
2158         &dev_attr_sq_num_rnr.attr,
2159         &dev_attr_rq_num_oos.attr,
2160         &dev_attr_sq_num_oos.attr,
2161         &dev_attr_rq_num_mce.attr,
2162         &dev_attr_rq_num_udsdprd.attr,
2163         &dev_attr_rq_num_ucsdprd.attr,
2164         &dev_attr_num_cqovf.attr,
2165         &dev_attr_num_eqovf.attr,
2166         &dev_attr_num_baddb.attr,
2167         &dev_attr_clear_diag.attr,
2168         NULL
2169 };
2170
2171 static struct attribute_group diag_counters_group = {
2172         .name  = "diag_counters",
2173         .attrs  = diag_rprt_attrs
2174 };
2175
2176 static void init_dev_assign(void)
2177 {
2178         int i = 1;
2179
2180         spin_lock_init(&dev_num_str_lock);
2181         if (mlx4_fill_dbdf2val_tbl(&dev_assign_str))
2182                 return;
2183         dev_num_str_bitmap =
2184                 kmalloc(BITS_TO_LONGS(MAX_NUM_STR_BITMAP) * sizeof(long),
2185                         GFP_KERNEL);
2186         if (!dev_num_str_bitmap) {
2187                 pr_warn("bitmap alloc failed -- cannot apply dev_assign_str parameter\n");
2188                 return;
2189         }
2190         bitmap_zero(dev_num_str_bitmap, MAX_NUM_STR_BITMAP);
2191         while ((i < MLX4_DEVS_TBL_SIZE) && (dev_assign_str.tbl[i].dbdf !=
2192                MLX4_ENDOF_TBL)) {
2193                 if (bitmap_allocate_region(dev_num_str_bitmap,
2194                                            dev_assign_str.tbl[i].val[0], 0))
2195                         goto err;
2196                 i++;
2197         }
2198         dr_active = 1;
2199         return;
2200
2201 err:
2202         kfree(dev_num_str_bitmap);
2203         dev_num_str_bitmap = NULL;
2204         pr_warn("mlx4_ib: The value of 'dev_assign_str' parameter "
2205                             "is incorrect. The parameter value is discarded!");
2206 }
2207
2208 static int mlx4_ib_dev_idx(struct mlx4_dev *dev)
2209 {
2210         int i, val;
2211
2212         if (!dr_active)
2213                 return -1;
2214         if (!dev)
2215                 return -1;
2216         if (mlx4_get_val(dev_assign_str.tbl, dev->pdev, 0, &val))
2217                 return -1;
2218
2219         if (val != DEFAULT_TBL_VAL) {
2220                 dev->flags |= MLX4_FLAG_DEV_NUM_STR;
2221                 return val;
2222         }
2223
2224         spin_lock(&dev_num_str_lock);
2225         i = bitmap_find_free_region(dev_num_str_bitmap, MAX_NUM_STR_BITMAP, 0);
2226         spin_unlock(&dev_num_str_lock);
2227         if (i >= 0)
2228                 return i;
2229
2230         return -1;
2231 }
2232
2233 static void *mlx4_ib_add(struct mlx4_dev *dev)
2234 {
2235         struct mlx4_ib_dev *ibdev;
2236         int num_ports = 0;
2237         int i, j;
2238         int err;
2239         struct mlx4_ib_iboe *iboe;
2240         int dev_idx;
2241
2242         pr_info_once("%s", mlx4_ib_version);
2243
2244         mlx4_foreach_ib_transport_port(i, dev)
2245                 num_ports++;
2246
2247         /* No point in registering a device with no ports... */
2248         if (num_ports == 0)
2249                 return NULL;
2250
2251         ibdev = (struct mlx4_ib_dev *) ib_alloc_device(sizeof *ibdev);
2252         if (!ibdev) {
2253                 dev_err(&dev->pdev->dev, "Device struct alloc failed\n");
2254                 return NULL;
2255         }
2256
2257         iboe = &ibdev->iboe;
2258
2259         if (mlx4_pd_alloc(dev, &ibdev->priv_pdn))
2260                 goto err_dealloc;
2261
2262         if (mlx4_uar_alloc(dev, &ibdev->priv_uar))
2263                 goto err_pd;
2264
2265         ibdev->priv_uar.map = ioremap(ibdev->priv_uar.pfn << PAGE_SHIFT,
2266                 PAGE_SIZE);
2267
2268         if (!ibdev->priv_uar.map)
2269                 goto err_uar;
2270
2271         MLX4_INIT_DOORBELL_LOCK(&ibdev->uar_lock);
2272
2273         ibdev->dev = dev;
2274
2275         dev_idx = mlx4_ib_dev_idx(dev);
2276         if (dev_idx >= 0)
2277                 sprintf(ibdev->ib_dev.name, "mlx4_%d", dev_idx);
2278         else
2279                 strlcpy(ibdev->ib_dev.name, "mlx4_%d", IB_DEVICE_NAME_MAX);
2280
2281         ibdev->ib_dev.owner             = THIS_MODULE;
2282         ibdev->ib_dev.node_type         = RDMA_NODE_IB_CA;
2283         ibdev->ib_dev.local_dma_lkey    = dev->caps.reserved_lkey;
2284         ibdev->num_ports                = num_ports;
2285         ibdev->ib_dev.phys_port_cnt     = ibdev->num_ports;
2286         ibdev->ib_dev.num_comp_vectors  = dev->caps.num_comp_vectors;
2287         ibdev->ib_dev.dma_device        = &dev->pdev->dev;
2288
2289         if (dev->caps.userspace_caps)
2290                 ibdev->ib_dev.uverbs_abi_ver = MLX4_IB_UVERBS_ABI_VERSION;
2291         else
2292                 ibdev->ib_dev.uverbs_abi_ver = MLX4_IB_UVERBS_NO_DEV_CAPS_ABI_VERSION;
2293
2294         ibdev->ib_dev.uverbs_cmd_mask   =
2295                 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT)         |
2296                 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE)        |
2297                 (1ull << IB_USER_VERBS_CMD_QUERY_PORT)          |
2298                 (1ull << IB_USER_VERBS_CMD_ALLOC_PD)            |
2299                 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD)          |
2300                 (1ull << IB_USER_VERBS_CMD_REG_MR)              |
2301                 (1ull << IB_USER_VERBS_CMD_DEREG_MR)            |
2302                 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
2303                 (1ull << IB_USER_VERBS_CMD_CREATE_CQ)           |
2304                 (1ull << IB_USER_VERBS_CMD_RESIZE_CQ)           |
2305                 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ)          |
2306                 (1ull << IB_USER_VERBS_CMD_CREATE_QP)           |
2307                 (1ull << IB_USER_VERBS_CMD_MODIFY_QP)           |
2308                 (1ull << IB_USER_VERBS_CMD_QUERY_QP)            |
2309                 (1ull << IB_USER_VERBS_CMD_DESTROY_QP)          |
2310                 (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST)        |
2311                 (1ull << IB_USER_VERBS_CMD_DETACH_MCAST)        |
2312                 (1ull << IB_USER_VERBS_CMD_CREATE_SRQ)          |
2313                 (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ)          |
2314                 (1ull << IB_USER_VERBS_CMD_QUERY_SRQ)           |
2315                 (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ)         |
2316                 (1ull << IB_USER_VERBS_CMD_CREATE_XSRQ)         |
2317                 (1ull << IB_USER_VERBS_CMD_OPEN_QP);
2318
2319         ibdev->ib_dev.query_device      = mlx4_ib_query_device;
2320         ibdev->ib_dev.query_port        = mlx4_ib_query_port;
2321         ibdev->ib_dev.get_link_layer    = mlx4_ib_port_link_layer;
2322         ibdev->ib_dev.query_gid         = mlx4_ib_query_gid;
2323         ibdev->ib_dev.query_pkey        = mlx4_ib_query_pkey;
2324         ibdev->ib_dev.modify_device     = mlx4_ib_modify_device;
2325         ibdev->ib_dev.modify_port       = mlx4_ib_modify_port;
2326         ibdev->ib_dev.alloc_ucontext    = mlx4_ib_alloc_ucontext;
2327         ibdev->ib_dev.dealloc_ucontext  = mlx4_ib_dealloc_ucontext;
2328         ibdev->ib_dev.mmap              = mlx4_ib_mmap;
2329 /* XXX FBSD has no support for get_unmapped_area function */
2330 #if 0
2331         ibdev->ib_dev.get_unmapped_area = mlx4_ib_get_unmapped_area;
2332 #endif
2333         ibdev->ib_dev.alloc_pd          = mlx4_ib_alloc_pd;
2334         ibdev->ib_dev.dealloc_pd        = mlx4_ib_dealloc_pd;
2335         ibdev->ib_dev.create_ah         = mlx4_ib_create_ah;
2336         ibdev->ib_dev.query_ah          = mlx4_ib_query_ah;
2337         ibdev->ib_dev.destroy_ah        = mlx4_ib_destroy_ah;
2338         ibdev->ib_dev.create_srq        = mlx4_ib_create_srq;
2339         ibdev->ib_dev.modify_srq        = mlx4_ib_modify_srq;
2340         ibdev->ib_dev.query_srq         = mlx4_ib_query_srq;
2341         ibdev->ib_dev.destroy_srq       = mlx4_ib_destroy_srq;
2342         ibdev->ib_dev.post_srq_recv     = mlx4_ib_post_srq_recv;
2343         ibdev->ib_dev.create_qp         = mlx4_ib_create_qp;
2344         ibdev->ib_dev.modify_qp         = mlx4_ib_modify_qp;
2345         ibdev->ib_dev.query_qp          = mlx4_ib_query_qp;
2346         ibdev->ib_dev.destroy_qp        = mlx4_ib_destroy_qp;
2347         ibdev->ib_dev.post_send         = mlx4_ib_post_send;
2348         ibdev->ib_dev.post_recv         = mlx4_ib_post_recv;
2349         ibdev->ib_dev.create_cq         = mlx4_ib_create_cq;
2350         ibdev->ib_dev.modify_cq         = mlx4_ib_modify_cq;
2351         ibdev->ib_dev.resize_cq         = mlx4_ib_resize_cq;
2352         ibdev->ib_dev.destroy_cq        = mlx4_ib_destroy_cq;
2353         ibdev->ib_dev.poll_cq           = mlx4_ib_poll_cq;
2354         ibdev->ib_dev.req_notify_cq     = mlx4_ib_arm_cq;
2355         ibdev->ib_dev.get_dma_mr        = mlx4_ib_get_dma_mr;
2356         ibdev->ib_dev.reg_user_mr       = mlx4_ib_reg_user_mr;
2357         ibdev->ib_dev.dereg_mr          = mlx4_ib_dereg_mr;
2358         ibdev->ib_dev.alloc_fast_reg_mr = mlx4_ib_alloc_fast_reg_mr;
2359         ibdev->ib_dev.alloc_fast_reg_page_list = mlx4_ib_alloc_fast_reg_page_list;
2360         ibdev->ib_dev.free_fast_reg_page_list  = mlx4_ib_free_fast_reg_page_list;
2361         ibdev->ib_dev.attach_mcast      = mlx4_ib_mcg_attach;
2362         ibdev->ib_dev.detach_mcast      = mlx4_ib_mcg_detach;
2363         ibdev->ib_dev.process_mad       = mlx4_ib_process_mad;
2364         ibdev->ib_dev.get_netdev        = mlx4_ib_get_netdev;
2365         ibdev->ib_dev.ioctl             = mlx4_ib_ioctl;
2366         ibdev->ib_dev.query_values      = mlx4_ib_query_values;
2367
2368         if (!mlx4_is_slave(ibdev->dev)) {
2369                 ibdev->ib_dev.alloc_fmr         = mlx4_ib_fmr_alloc;
2370                 ibdev->ib_dev.map_phys_fmr      = mlx4_ib_map_phys_fmr;
2371                 ibdev->ib_dev.unmap_fmr         = mlx4_ib_unmap_fmr;
2372                 ibdev->ib_dev.dealloc_fmr       = mlx4_ib_fmr_dealloc;
2373         }
2374
2375         if (dev->caps.flags & MLX4_DEV_CAP_FLAG_MEM_WINDOW) {
2376                 ibdev->ib_dev.alloc_mw = mlx4_ib_alloc_mw;
2377                 ibdev->ib_dev.bind_mw = mlx4_ib_bind_mw;
2378                 ibdev->ib_dev.dealloc_mw = mlx4_ib_dealloc_mw;
2379
2380                 ibdev->ib_dev.uverbs_cmd_mask |=
2381                         (1ull << IB_USER_VERBS_CMD_ALLOC_MW) |
2382                         (1ull << IB_USER_VERBS_CMD_DEALLOC_MW);
2383         }
2384
2385         if (dev->caps.flags & MLX4_DEV_CAP_FLAG_XRC) {
2386                 ibdev->ib_dev.alloc_xrcd = mlx4_ib_alloc_xrcd;
2387                 ibdev->ib_dev.dealloc_xrcd = mlx4_ib_dealloc_xrcd;
2388                 ibdev->ib_dev.uverbs_cmd_mask |=
2389                         (1ull << IB_USER_VERBS_CMD_OPEN_XRCD) |
2390                         (1ull << IB_USER_VERBS_CMD_CLOSE_XRCD);
2391         }
2392
2393         /*
2394          * Set experimental data
2395          */
2396         ibdev->ib_dev.uverbs_exp_cmd_mask       =
2397                 (1ull << IB_USER_VERBS_EXP_CMD_CREATE_QP)       |
2398                 (1ull << IB_USER_VERBS_EXP_CMD_MODIFY_CQ)       |
2399                 (1ull << IB_USER_VERBS_EXP_CMD_QUERY_DEVICE)    |
2400                 (1ull << IB_USER_VERBS_EXP_CMD_CREATE_CQ);
2401         ibdev->ib_dev.exp_create_qp     = mlx4_ib_exp_create_qp;
2402         ibdev->ib_dev.exp_query_device  = mlx4_ib_exp_query_device;
2403         if (check_flow_steering_support(dev)) {
2404                 ibdev->ib_dev.uverbs_ex_cmd_mask        |=
2405                         (1ull << IB_USER_VERBS_EX_CMD_CREATE_FLOW) |
2406                         (1ull << IB_USER_VERBS_EX_CMD_DESTROY_FLOW);
2407                 ibdev->ib_dev.create_flow       = mlx4_ib_create_flow;
2408                 ibdev->ib_dev.destroy_flow      = mlx4_ib_destroy_flow;
2409         } else {
2410                 pr_debug("Device managed flow steering is unavailable for this configuration.\n");
2411         }
2412         /*
2413          * End of experimental data
2414          */
2415
2416         mlx4_ib_alloc_eqs(dev, ibdev);
2417
2418         spin_lock_init(&iboe->lock);
2419
2420         if (init_node_data(ibdev))
2421                 goto err_map;
2422
2423         for (i = 0; i < ibdev->num_ports; ++i) {
2424                 if (mlx4_ib_port_link_layer(&ibdev->ib_dev, i + 1) ==
2425                                                 IB_LINK_LAYER_ETHERNET) {
2426                         if (mlx4_is_slave(dev)) {
2427                                 ibdev->counters[i].status = mlx4_counter_alloc(ibdev->dev,
2428                                                                                i + 1,
2429                                                                                &ibdev->counters[i].counter_index);
2430                         } else {/* allocating the PF IB default counter indices reserved in mlx4_init_counters_table */
2431                                 ibdev->counters[i].counter_index = ((i + 1) << 1) - 1;
2432                                 ibdev->counters[i].status = 0;
2433                         }
2434
2435                         dev_info(&dev->pdev->dev,
2436                                  "%s: allocated counter index %d for port %d\n",
2437                                  __func__, ibdev->counters[i].counter_index, i+1);
2438                 } else {
2439                         ibdev->counters[i].counter_index = MLX4_SINK_COUNTER_INDEX;
2440                         ibdev->counters[i].status = -ENOSPC;
2441                 }
2442         }
2443
2444         spin_lock_init(&ibdev->sm_lock);
2445         mutex_init(&ibdev->cap_mask_mutex);
2446
2447         if (dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED &&
2448             !mlx4_is_mfunc(dev)) {
2449                 ibdev->steer_qpn_count = MLX4_IB_UC_MAX_NUM_QPS;
2450                 err = mlx4_qp_reserve_range(dev, ibdev->steer_qpn_count,
2451                                             MLX4_IB_UC_STEER_QPN_ALIGN, &ibdev->steer_qpn_base, 0);
2452                 if (err)
2453                         goto err_counter;
2454
2455                 ibdev->ib_uc_qpns_bitmap =
2456                         kmalloc(BITS_TO_LONGS(ibdev->steer_qpn_count) *
2457                                 sizeof(long),
2458                                 GFP_KERNEL);
2459                 if (!ibdev->ib_uc_qpns_bitmap) {
2460                         dev_err(&dev->pdev->dev, "bit map alloc failed\n");
2461                         goto err_steer_qp_release;
2462                 }
2463
2464                 bitmap_zero(ibdev->ib_uc_qpns_bitmap, ibdev->steer_qpn_count);
2465
2466                 err = mlx4_FLOW_STEERING_IB_UC_QP_RANGE(dev, ibdev->steer_qpn_base,
2467                                 ibdev->steer_qpn_base + ibdev->steer_qpn_count - 1);
2468                 if (err)
2469                         goto err_steer_free_bitmap;
2470         }
2471
2472         if (ib_register_device(&ibdev->ib_dev, NULL))
2473                 goto err_steer_free_bitmap;
2474
2475         if (mlx4_ib_mad_init(ibdev))
2476                 goto err_reg;
2477
2478         if (mlx4_ib_init_sriov(ibdev))
2479                 goto err_mad;
2480
2481         if (dev->caps.flags & MLX4_DEV_CAP_FLAG_IBOE) {
2482                 if (!iboe->nb.notifier_call) {
2483                         iboe->nb.notifier_call = mlx4_ib_netdev_event;
2484                         err = register_netdevice_notifier(&iboe->nb);
2485                         if (err) {
2486                                 iboe->nb.notifier_call = NULL;
2487                                 goto err_notify;
2488                         }
2489                 }
2490                 if (!iboe->nb_inet.notifier_call) {
2491                         iboe->nb_inet.notifier_call = mlx4_ib_inet_event;
2492                         err = register_inetaddr_notifier(&iboe->nb_inet);
2493                         if (err) {
2494                                 iboe->nb_inet.notifier_call = NULL;
2495                                 goto err_notify;
2496                         }
2497                 }
2498                 mlx4_ib_scan_netdevs(ibdev, NULL, 0);
2499         }
2500         for (j = 0; j < ARRAY_SIZE(mlx4_class_attributes); ++j) {
2501                 if (device_create_file(&ibdev->ib_dev.dev,
2502                                        mlx4_class_attributes[j]))
2503                         goto err_notify;
2504         }
2505         if (sysfs_create_group(&ibdev->ib_dev.dev.kobj, &diag_counters_group))
2506                 goto err_notify;
2507
2508         ibdev->ib_active = true;
2509
2510         if (mlx4_is_mfunc(ibdev->dev))
2511                 init_pkeys(ibdev);
2512
2513         /* create paravirt contexts for any VFs which are active */
2514         if (mlx4_is_master(ibdev->dev)) {
2515                 for (j = 0; j < MLX4_MFUNC_MAX; j++) {
2516                         if (j == mlx4_master_func_num(ibdev->dev))
2517                                 continue;
2518                         if (mlx4_is_slave_active(ibdev->dev, j))
2519                                 do_slave_init(ibdev, j, 1);
2520                 }
2521         }
2522         return ibdev;
2523
2524 err_notify:
2525         for (j = 0; j < ARRAY_SIZE(mlx4_class_attributes); ++j) {
2526                 device_remove_file(&ibdev->ib_dev.dev,
2527                         mlx4_class_attributes[j]);
2528         }
2529
2530         if (ibdev->iboe.nb.notifier_call) {
2531                 if (unregister_netdevice_notifier(&ibdev->iboe.nb))
2532                         pr_warn("failure unregistering notifier\n");
2533                 ibdev->iboe.nb.notifier_call = NULL;
2534         }
2535         if (ibdev->iboe.nb_inet.notifier_call) {
2536                 if (unregister_inetaddr_notifier(&ibdev->iboe.nb_inet))
2537                         pr_warn("failure unregistering notifier\n");
2538                 ibdev->iboe.nb_inet.notifier_call = NULL;
2539         }
2540         flush_workqueue(wq);
2541
2542         mlx4_ib_close_sriov(ibdev);
2543
2544 err_mad:
2545         mlx4_ib_mad_cleanup(ibdev);
2546
2547 err_reg:
2548         ib_unregister_device(&ibdev->ib_dev);
2549
2550 err_steer_free_bitmap:
2551         kfree(ibdev->ib_uc_qpns_bitmap);
2552
2553 err_steer_qp_release:
2554         if (dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED)
2555                 mlx4_qp_release_range(dev, ibdev->steer_qpn_base,
2556                                 ibdev->steer_qpn_count);
2557 err_counter:
2558         for (; i; --i) {
2559                 if (mlx4_ib_port_link_layer(&ibdev->ib_dev, i) ==
2560                                                 IB_LINK_LAYER_ETHERNET) {
2561                         mlx4_counter_free(ibdev->dev,
2562                                           i,
2563                                           ibdev->counters[i - 1].counter_index);
2564                 }
2565         }
2566
2567 err_map:
2568         iounmap(ibdev->priv_uar.map);
2569         mlx4_ib_free_eqs(dev, ibdev);
2570
2571 err_uar:
2572         mlx4_uar_free(dev, &ibdev->priv_uar);
2573
2574 err_pd:
2575         mlx4_pd_free(dev, ibdev->priv_pdn);
2576
2577 err_dealloc:
2578         ib_dealloc_device(&ibdev->ib_dev);
2579
2580         return NULL;
2581 }
2582
2583 int mlx4_ib_steer_qp_alloc(struct mlx4_ib_dev *dev, int count, int *qpn)
2584 {
2585         int offset;
2586
2587         WARN_ON(!dev->ib_uc_qpns_bitmap);
2588
2589         offset = bitmap_find_free_region(dev->ib_uc_qpns_bitmap,
2590                                          dev->steer_qpn_count,
2591                                          get_count_order(count));
2592         if (offset < 0)
2593                 return offset;
2594
2595         *qpn = dev->steer_qpn_base + offset;
2596         return 0;
2597 }
2598
2599 void mlx4_ib_steer_qp_free(struct mlx4_ib_dev *dev, u32 qpn, int count)
2600 {
2601         if (!qpn ||
2602             dev->dev->caps.steering_mode != MLX4_STEERING_MODE_DEVICE_MANAGED)
2603                 return;
2604
2605         BUG_ON(qpn < dev->steer_qpn_base);
2606
2607         bitmap_release_region(dev->ib_uc_qpns_bitmap,
2608                         qpn - dev->steer_qpn_base, get_count_order(count));
2609 }
2610
2611 int mlx4_ib_steer_qp_reg(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
2612                          int is_attach)
2613 {
2614         int err;
2615         size_t flow_size;
2616         struct ib_flow_attr *flow = NULL;
2617         struct ib_flow_spec_ib *ib_spec;
2618
2619         if (is_attach) {
2620                 flow_size = sizeof(struct ib_flow_attr) +
2621                             sizeof(struct ib_flow_spec_ib);
2622                 flow = kzalloc(flow_size, GFP_KERNEL);
2623                 if (!flow)
2624                         return -ENOMEM;
2625                 flow->port = mqp->port;
2626                 flow->num_of_specs = 1;
2627                 flow->size = flow_size;
2628                 ib_spec = (struct ib_flow_spec_ib *)(flow + 1);
2629                 ib_spec->type = IB_FLOW_SPEC_IB;
2630                 ib_spec->size = sizeof(struct ib_flow_spec_ib);
2631                 ib_spec->val.l3_type_qpn = mqp->ibqp.qp_num;
2632                 ib_spec->mask.l3_type_qpn = MLX4_IB_FLOW_QPN_MASK;
2633
2634                 err = __mlx4_ib_create_flow(&mqp->ibqp, flow,
2635                                             IB_FLOW_DOMAIN_NIC,
2636                                             MLX4_FS_REGULAR,
2637                                             &mqp->reg_id);
2638         } else {
2639                 err = __mlx4_ib_destroy_flow(mdev->dev, mqp->reg_id);
2640         }
2641         kfree(flow);
2642         return err;
2643 }
2644
2645 static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr)
2646 {
2647         struct mlx4_ib_dev *ibdev = ibdev_ptr;
2648         int p, j;
2649         int dev_idx, ret;
2650
2651         if (ibdev->iboe.nb_inet.notifier_call) {
2652                 if (unregister_inetaddr_notifier(&ibdev->iboe.nb_inet))
2653                         pr_warn("failure unregistering notifier\n");
2654                 ibdev->iboe.nb_inet.notifier_call = NULL;
2655         }
2656
2657         mlx4_ib_close_sriov(ibdev);
2658         sysfs_remove_group(&ibdev->ib_dev.dev.kobj, &diag_counters_group);
2659         mlx4_ib_mad_cleanup(ibdev);
2660
2661         for (j = 0; j < ARRAY_SIZE(mlx4_class_attributes); ++j) {
2662                 device_remove_file(&ibdev->ib_dev.dev,
2663                         mlx4_class_attributes[j]);
2664         }
2665
2666
2667         dev_idx = -1;
2668         if (dr_active && !(ibdev->dev->flags & MLX4_FLAG_DEV_NUM_STR)) {
2669                 ret = sscanf(ibdev->ib_dev.name, "mlx4_%d", &dev_idx);
2670                 if (ret != 1)
2671                         dev_idx = -1;
2672         }
2673         ib_unregister_device(&ibdev->ib_dev);
2674         if (dev_idx >= 0) {
2675                 spin_lock(&dev_num_str_lock);
2676                 bitmap_release_region(dev_num_str_bitmap, dev_idx, 0);
2677                 spin_unlock(&dev_num_str_lock);
2678         }
2679
2680         if (dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED) {
2681                 mlx4_qp_release_range(dev, ibdev->steer_qpn_base,
2682                                 ibdev->steer_qpn_count);
2683                 kfree(ibdev->ib_uc_qpns_bitmap);
2684         }
2685
2686         if (ibdev->iboe.nb.notifier_call) {
2687                 if (unregister_netdevice_notifier(&ibdev->iboe.nb))
2688                         pr_warn("failure unregistering notifier\n");
2689                 ibdev->iboe.nb.notifier_call = NULL;
2690         }
2691         iounmap(ibdev->priv_uar.map);
2692
2693         for (p = 0; p < ibdev->num_ports; ++p) {
2694                 if (mlx4_ib_port_link_layer(&ibdev->ib_dev, p + 1) ==
2695                                                 IB_LINK_LAYER_ETHERNET) {
2696                         mlx4_counter_free(ibdev->dev,
2697                                           p + 1,
2698                                           ibdev->counters[p].counter_index);
2699                 }
2700         }
2701
2702         mlx4_foreach_port(p, dev, MLX4_PORT_TYPE_IB)
2703                 mlx4_CLOSE_PORT(dev, p);
2704
2705         mlx4_ib_free_eqs(dev, ibdev);
2706
2707         mlx4_uar_free(dev, &ibdev->priv_uar);
2708         mlx4_pd_free(dev, ibdev->priv_pdn);
2709         ib_dealloc_device(&ibdev->ib_dev);
2710 }
2711
2712 static void do_slave_init(struct mlx4_ib_dev *ibdev, int slave, int do_init)
2713 {
2714         struct mlx4_ib_demux_work **dm = NULL;
2715         struct mlx4_dev *dev = ibdev->dev;
2716         int i;
2717         unsigned long flags;
2718
2719         if (!mlx4_is_master(dev))
2720                 return;
2721
2722         dm = kcalloc(dev->caps.num_ports, sizeof *dm, GFP_ATOMIC);
2723         if (!dm) {
2724                 pr_err("failed to allocate memory for tunneling qp update\n");
2725                 goto out;
2726         }
2727
2728         for (i = 0; i < dev->caps.num_ports; i++) {
2729                 dm[i] = kmalloc(sizeof (struct mlx4_ib_demux_work), GFP_ATOMIC);
2730                 if (!dm[i]) {
2731                         pr_err("failed to allocate memory for tunneling qp update work struct\n");
2732                         for (i = 0; i < dev->caps.num_ports; i++) {
2733                                 if (dm[i])
2734                                         kfree(dm[i]);
2735                         }
2736                         goto out;
2737                 }
2738         }
2739         /* initialize or tear down tunnel QPs for the slave */
2740         for (i = 0; i < dev->caps.num_ports; i++) {
2741                 INIT_WORK(&dm[i]->work, mlx4_ib_tunnels_update_work);
2742                 dm[i]->port = i + 1;
2743                 dm[i]->slave = slave;
2744                 dm[i]->do_init = do_init;
2745                 dm[i]->dev = ibdev;
2746                 spin_lock_irqsave(&ibdev->sriov.going_down_lock, flags);
2747                 if (!ibdev->sriov.is_going_down)
2748                         queue_work(ibdev->sriov.demux[i].ud_wq, &dm[i]->work);
2749                 spin_unlock_irqrestore(&ibdev->sriov.going_down_lock, flags);
2750         }
2751 out:
2752         if (dm)
2753                 kfree(dm);
2754         return;
2755 }
2756
2757 static void mlx4_ib_event(struct mlx4_dev *dev, void *ibdev_ptr,
2758                           enum mlx4_dev_event event, unsigned long param)
2759 {
2760         struct ib_event ibev;
2761         struct mlx4_ib_dev *ibdev = to_mdev((struct ib_device *) ibdev_ptr);
2762         struct mlx4_eqe *eqe = NULL;
2763         struct ib_event_work *ew;
2764         int p = 0;
2765
2766         if (event == MLX4_DEV_EVENT_PORT_MGMT_CHANGE)
2767                 eqe = (struct mlx4_eqe *)param;
2768         else
2769                 p = (int) param;
2770
2771         switch (event) {
2772         case MLX4_DEV_EVENT_PORT_UP:
2773                 if (p > ibdev->num_ports)
2774                         return;
2775                 if (mlx4_is_master(dev) &&
2776                     rdma_port_get_link_layer(&ibdev->ib_dev, p) ==
2777                         IB_LINK_LAYER_INFINIBAND) {
2778                         mlx4_ib_invalidate_all_guid_record(ibdev, p);
2779                 }
2780                 mlx4_ib_info((struct ib_device *) ibdev_ptr,
2781                              "Port %d logical link is up\n", p);
2782                 ibev.event = IB_EVENT_PORT_ACTIVE;
2783                 break;
2784
2785         case MLX4_DEV_EVENT_PORT_DOWN:
2786                 if (p > ibdev->num_ports)
2787                         return;
2788                 mlx4_ib_info((struct ib_device *) ibdev_ptr,
2789                              "Port %d logical link is down\n", p);
2790                 ibev.event = IB_EVENT_PORT_ERR;
2791                 break;
2792
2793         case MLX4_DEV_EVENT_CATASTROPHIC_ERROR:
2794                 ibdev->ib_active = false;
2795                 ibev.event = IB_EVENT_DEVICE_FATAL;
2796                 break;
2797
2798         case MLX4_DEV_EVENT_PORT_MGMT_CHANGE:
2799                 ew = kmalloc(sizeof *ew, GFP_ATOMIC);
2800                 if (!ew) {
2801                         pr_err("failed to allocate memory for events work\n");
2802                         break;
2803                 }
2804
2805                 INIT_WORK(&ew->work, handle_port_mgmt_change_event);
2806                 memcpy(&ew->ib_eqe, eqe, sizeof *eqe);
2807                 ew->ib_dev = ibdev;
2808                 /* need to queue only for port owner, which uses GEN_EQE */
2809                 if (mlx4_is_master(dev))
2810                         queue_work(wq, &ew->work);
2811                 else
2812                         handle_port_mgmt_change_event(&ew->work);
2813                 return;
2814
2815         case MLX4_DEV_EVENT_SLAVE_INIT:
2816                 /* here, p is the slave id */
2817                 do_slave_init(ibdev, p, 1);
2818                 return;
2819
2820         case MLX4_DEV_EVENT_SLAVE_SHUTDOWN:
2821                 /* here, p is the slave id */
2822                 do_slave_init(ibdev, p, 0);
2823                 return;
2824
2825         default:
2826                 return;
2827         }
2828
2829         ibev.device           = ibdev_ptr;
2830         ibev.element.port_num = (u8) p;
2831
2832         ib_dispatch_event(&ibev);
2833 }
2834
2835 static struct mlx4_interface mlx4_ib_interface = {
2836         .add            = mlx4_ib_add,
2837         .remove         = mlx4_ib_remove,
2838         .event          = mlx4_ib_event,
2839         .protocol       = MLX4_PROT_IB_IPV6
2840 };
2841
2842 static int __init mlx4_ib_init(void)
2843 {
2844         int err;
2845
2846         wq = create_singlethread_workqueue("mlx4_ib");
2847         if (!wq)
2848                 return -ENOMEM;
2849
2850         err = mlx4_ib_mcg_init();
2851         if (err)
2852                 goto clean_proc;
2853
2854         init_dev_assign();
2855
2856         err = mlx4_register_interface(&mlx4_ib_interface);
2857         if (err)
2858                 goto clean_mcg;
2859
2860         return 0;
2861
2862 clean_mcg:
2863         mlx4_ib_mcg_destroy();
2864
2865 clean_proc:
2866         destroy_workqueue(wq);
2867         return err;
2868 }
2869
2870 static void __exit mlx4_ib_cleanup(void)
2871 {
2872         mlx4_unregister_interface(&mlx4_ib_interface);
2873         mlx4_ib_mcg_destroy();
2874         destroy_workqueue(wq);
2875
2876         kfree(dev_num_str_bitmap);
2877 }
2878
2879 module_init_order(mlx4_ib_init, SI_ORDER_MIDDLE);
2880 module_exit(mlx4_ib_cleanup);
2881
2882 static int
2883 mlx4ib_evhand(module_t mod, int event, void *arg)
2884 {
2885         return (0);
2886 }
2887
2888 static moduledata_t mlx4ib_mod = {
2889         .name = "mlx4ib",
2890         .evhand = mlx4ib_evhand,
2891 };
2892
2893 DECLARE_MODULE(mlx4ib, mlx4ib_mod, SI_SUB_LAST, SI_ORDER_ANY);
2894 MODULE_DEPEND(mlx4ib, mlx4, 1, 1, 1);
2895 MODULE_DEPEND(mlx4ib, ibcore, 1, 1, 1);
2896 MODULE_DEPEND(mlx4ib, linuxkpi, 1, 1, 1);