drivers/infiniband/hw/mlx4/mlx4_ib.h

   1 /*
   2  * Copyright (c) 2006, 2007 Cisco Systems.  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 #ifndef MLX4_IB_H
  35 #define MLX4_IB_H
  36
  37 #include <linux/compiler.h>
  38 #include <linux/list.h>
  39 #include <linux/mutex.h>
  40 #include <linux/idr.h>
  41
  42 #include <rdma/ib_verbs.h>
  43 #include <rdma/ib_umem.h>
  44 #include <rdma/ib_mad.h>
  45 #include <rdma/ib_sa.h>
  46
  47 #include <linux/mlx4/device.h>
  48 #include <linux/mlx4/doorbell.h>
  49 #include <linux/mlx4/qp.h>
  50 #include <linux/mlx4/cq.h>
  51
  52 #define MLX4_IB_DRV_NAME        "mlx4_ib"
  53
  54 #ifdef pr_fmt
  55 #undef pr_fmt
  56 #endif
  57 #define pr_fmt(fmt)     "<" MLX4_IB_DRV_NAME "> %s: " fmt, __func__
  58
  59 #define mlx4_ib_warn(ibdev, format, arg...) \
  60         dev_warn((ibdev)->dev.parent, MLX4_IB_DRV_NAME ": " format, ## arg)
  61
  62 enum {
  63         MLX4_IB_SQ_MIN_WQE_SHIFT = 6,
  64         MLX4_IB_MAX_HEADROOM     = 2048
  65 };
  66
  67 #define MLX4_IB_SQ_HEADROOM(shift)      ((MLX4_IB_MAX_HEADROOM >> (shift)) + 1)
  68 #define MLX4_IB_SQ_MAX_SPARE            (MLX4_IB_SQ_HEADROOM(MLX4_IB_SQ_MIN_WQE_SHIFT))
  69
  70 /*module param to indicate if SM assigns the alias_GUID*/
  71 extern int mlx4_ib_sm_guid_assign;
  72
  73 #define MLX4_IB_UC_STEER_QPN_ALIGN 1
  74 #define MLX4_IB_UC_MAX_NUM_QPS     256
  75
  76 enum hw_bar_type {
  77         HW_BAR_BF,
  78         HW_BAR_DB,
  79         HW_BAR_CLOCK,
  80         HW_BAR_COUNT
  81 };
  82
  83 struct mlx4_ib_ucontext {
  84         struct ib_ucontext      ibucontext;
  85         struct mlx4_uar         uar;
  86         struct list_head        db_page_list;
  87         struct mutex            db_page_mutex;
  88         struct list_head        wqn_ranges_list;
  89         struct mutex            wqn_ranges_mutex; /* protect wqn_ranges_list */
  90 };
  91
  92 struct mlx4_ib_pd {
  93         struct ib_pd            ibpd;
  94         u32                     pdn;
  95 };
  96
  97 struct mlx4_ib_xrcd {
  98         struct ib_xrcd          ibxrcd;
  99         u32                     xrcdn;
 100         struct ib_pd           *pd;
 101         struct ib_cq           *cq;
 102 };
 103
 104 struct mlx4_ib_cq_buf {
 105         struct mlx4_buf         buf;
 106         struct mlx4_mtt         mtt;
 107         int                     entry_size;
 108 };
 109
 110 struct mlx4_ib_cq_resize {
 111         struct mlx4_ib_cq_buf   buf;
 112         int                     cqe;
 113 };
 114
 115 struct mlx4_ib_cq {
 116         struct ib_cq            ibcq;
 117         struct mlx4_cq          mcq;
 118         struct mlx4_ib_cq_buf   buf;
 119         struct mlx4_ib_cq_resize *resize_buf;
 120         struct mlx4_db          db;
 121         spinlock_t              lock;
 122         struct mutex            resize_mutex;
 123         struct ib_umem         *umem;
 124         struct ib_umem         *resize_umem;
 125         int                     create_flags;
 126         /* List of qps that it serves.*/
 127         struct list_head                send_qp_list;
 128         struct list_head                recv_qp_list;
 129 };
 130
 131 #define MLX4_MR_PAGES_ALIGN 0x40
 132
 133 struct mlx4_ib_mr {
 134         struct ib_mr            ibmr;
 135         __be64                  *pages;
 136         dma_addr_t              page_map;
 137         u32                     npages;
 138         u32                     max_pages;
 139         struct mlx4_mr          mmr;
 140         struct ib_umem         *umem;
 141         size_t                  page_map_size;
 142 };
 143
 144 struct mlx4_ib_mw {
 145         struct ib_mw            ibmw;
 146         struct mlx4_mw          mmw;
 147 };
 148
 149 #define MAX_REGS_PER_FLOW 2
 150
 151 struct mlx4_flow_reg_id {
 152         u64 id;
 153         u64 mirror;
 154 };
 155
 156 struct mlx4_ib_flow {
 157         struct ib_flow ibflow;
 158         /* translating DMFS verbs sniffer rule to FW API requires two reg IDs */
 159         struct mlx4_flow_reg_id reg_id[MAX_REGS_PER_FLOW];
 160 };
 161
 162 struct mlx4_ib_wq {
 163         u64                    *wrid;
 164         spinlock_t              lock;
 165         int                     wqe_cnt;
 166         int                     max_post;
 167         int                     max_gs;
 168         int                     offset;
 169         int                     wqe_shift;
 170         unsigned                head;
 171         unsigned                tail;
 172 };
 173
 174 enum {
 175         MLX4_IB_QP_CREATE_ROCE_V2_GSI = IB_QP_CREATE_RESERVED_START
 176 };
 177
 178 enum mlx4_ib_qp_flags {
 179         MLX4_IB_QP_LSO = IB_QP_CREATE_IPOIB_UD_LSO,
 180         MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK = IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK,
 181         MLX4_IB_QP_NETIF = IB_QP_CREATE_NETIF_QP,
 182         MLX4_IB_QP_SCATTER_FCS = IB_QP_CREATE_SCATTER_FCS,
 183
 184         /* Mellanox specific flags start from IB_QP_CREATE_RESERVED_START */
 185         MLX4_IB_ROCE_V2_GSI_QP = MLX4_IB_QP_CREATE_ROCE_V2_GSI,
 186         MLX4_IB_SRIOV_TUNNEL_QP = 1 << 30,
 187         MLX4_IB_SRIOV_SQP = 1 << 31,
 188 };
 189
 190 struct mlx4_ib_gid_entry {
 191         struct list_head        list;
 192         union ib_gid            gid;
 193         int                     added;
 194         u8                      port;
 195 };
 196
 197 enum mlx4_ib_qp_type {
 198         /*
 199          * IB_QPT_SMI and IB_QPT_GSI have to be the first two entries
 200          * here (and in that order) since the MAD layer uses them as
 201          * indices into a 2-entry table.
 202          */
 203         MLX4_IB_QPT_SMI = IB_QPT_SMI,
 204         MLX4_IB_QPT_GSI = IB_QPT_GSI,
 205
 206         MLX4_IB_QPT_RC = IB_QPT_RC,
 207         MLX4_IB_QPT_UC = IB_QPT_UC,
 208         MLX4_IB_QPT_UD = IB_QPT_UD,
 209         MLX4_IB_QPT_RAW_IPV6 = IB_QPT_RAW_IPV6,
 210         MLX4_IB_QPT_RAW_ETHERTYPE = IB_QPT_RAW_ETHERTYPE,
 211         MLX4_IB_QPT_RAW_PACKET = IB_QPT_RAW_PACKET,
 212         MLX4_IB_QPT_XRC_INI = IB_QPT_XRC_INI,
 213         MLX4_IB_QPT_XRC_TGT = IB_QPT_XRC_TGT,
 214
 215         MLX4_IB_QPT_PROXY_SMI_OWNER     = 1 << 16,
 216         MLX4_IB_QPT_PROXY_SMI           = 1 << 17,
 217         MLX4_IB_QPT_PROXY_GSI           = 1 << 18,
 218         MLX4_IB_QPT_TUN_SMI_OWNER       = 1 << 19,
 219         MLX4_IB_QPT_TUN_SMI             = 1 << 20,
 220         MLX4_IB_QPT_TUN_GSI             = 1 << 21,
 221 };
 222
 223 #define MLX4_IB_QPT_ANY_SRIOV   (MLX4_IB_QPT_PROXY_SMI_OWNER | \
 224         MLX4_IB_QPT_PROXY_SMI | MLX4_IB_QPT_PROXY_GSI | MLX4_IB_QPT_TUN_SMI_OWNER | \
 225         MLX4_IB_QPT_TUN_SMI | MLX4_IB_QPT_TUN_GSI)
 226
 227 enum mlx4_ib_mad_ifc_flags {
 228         MLX4_MAD_IFC_IGNORE_MKEY        = 1,
 229         MLX4_MAD_IFC_IGNORE_BKEY        = 2,
 230         MLX4_MAD_IFC_IGNORE_KEYS        = (MLX4_MAD_IFC_IGNORE_MKEY |
 231                                            MLX4_MAD_IFC_IGNORE_BKEY),
 232         MLX4_MAD_IFC_NET_VIEW           = 4,
 233 };
 234
 235 enum {
 236         MLX4_NUM_TUNNEL_BUFS            = 512,
 237         MLX4_NUM_WIRE_BUFS              = 2048,
 238 };
 239
 240 struct mlx4_ib_tunnel_header {
 241         struct mlx4_av av;
 242         __be32 remote_qpn;
 243         __be32 qkey;
 244         __be16 vlan;
 245         u8 mac[6];
 246         __be16 pkey_index;
 247         u8 reserved[6];
 248 };
 249
 250 struct mlx4_ib_buf {
 251         void *addr;
 252         dma_addr_t map;
 253 };
 254
 255 struct mlx4_rcv_tunnel_hdr {
 256         __be32 flags_src_qp; /* flags[6:5] is defined for VLANs:
 257                               * 0x0 - no vlan was in the packet
 258                               * 0x01 - C-VLAN was in the packet */
 259         u8 g_ml_path; /* gid bit stands for ipv6/4 header in RoCE */
 260         u8 reserved;
 261         __be16 pkey_index;
 262         __be16 sl_vid;
 263         __be16 slid_mac_47_32;
 264         __be32 mac_31_0;
 265 };
 266
 267 struct mlx4_ib_proxy_sqp_hdr {
 268         struct ib_grh grh;
 269         struct mlx4_rcv_tunnel_hdr tun;
 270 }  __packed;
 271
 272 struct mlx4_roce_smac_vlan_info {
 273         u64 smac;
 274         int smac_index;
 275         int smac_port;
 276         u64 candidate_smac;
 277         int candidate_smac_index;
 278         int candidate_smac_port;
 279         u16 vid;
 280         int vlan_index;
 281         int vlan_port;
 282         u16 candidate_vid;
 283         int candidate_vlan_index;
 284         int candidate_vlan_port;
 285         int update_vid;
 286 };
 287
 288 struct mlx4_wqn_range {
 289         int                     base_wqn;
 290         int                     size;
 291         int                     refcount;
 292         bool                    dirty;
 293         struct list_head        list;
 294 };
 295
 296 struct mlx4_ib_rss {
 297         unsigned int            base_qpn_tbl_sz;
 298         u8                      flags;
 299         u8                      rss_key[MLX4_EN_RSS_KEY_SIZE];
 300 };
 301
 302 enum {
 303         /*
 304          * Largest possible UD header: send with GRH and immediate
 305          * data plus 18 bytes for an Ethernet header with VLAN/802.1Q
 306          * tag.  (LRH would only use 8 bytes, so Ethernet is the
 307          * biggest case)
 308          */
 309         MLX4_IB_UD_HEADER_SIZE          = 82,
 310         MLX4_IB_LSO_HEADER_SPARE        = 128,
 311 };
 312
 313 struct mlx4_ib_sqp {
 314         int pkey_index;
 315         u32 qkey;
 316         u32 send_psn;
 317         struct ib_ud_header ud_header;
 318         u8 header_buf[MLX4_IB_UD_HEADER_SIZE];
 319         struct ib_qp *roce_v2_gsi;
 320 };
 321
 322 struct mlx4_ib_qp {
 323         union {
 324                 struct ib_qp    ibqp;
 325                 struct ib_wq    ibwq;
 326         };
 327         struct mlx4_qp          mqp;
 328         struct mlx4_buf         buf;
 329
 330         struct mlx4_db          db;
 331         struct mlx4_ib_wq       rq;
 332
 333         u32                     doorbell_qpn;
 334         __be32                  sq_signal_bits;
 335         unsigned                sq_next_wqe;
 336         int                     sq_spare_wqes;
 337         struct mlx4_ib_wq       sq;
 338
 339         enum mlx4_ib_qp_type    mlx4_ib_qp_type;
 340         struct ib_umem         *umem;
 341         struct mlx4_mtt         mtt;
 342         int                     buf_size;
 343         struct mutex            mutex;
 344         u16                     xrcdn;
 345         u32                     flags;
 346         u8                      port;
 347         u8                      alt_port;
 348         u8                      atomic_rd_en;
 349         u8                      resp_depth;
 350         u8                      sq_no_prefetch;
 351         u8                      state;
 352         int                     mlx_type;
 353         u32                     inl_recv_sz;
 354         struct list_head        gid_list;
 355         struct list_head        steering_rules;
 356         struct mlx4_ib_buf      *sqp_proxy_rcv;
 357         struct mlx4_roce_smac_vlan_info pri;
 358         struct mlx4_roce_smac_vlan_info alt;
 359         u64                     reg_id;
 360         struct list_head        qps_list;
 361         struct list_head        cq_recv_list;
 362         struct list_head        cq_send_list;
 363         struct counter_index    *counter_index;
 364         struct mlx4_wqn_range   *wqn_range;
 365         /* Number of RSS QP parents that uses this WQ */
 366         u32                     rss_usecnt;
 367         union {
 368                 struct mlx4_ib_rss *rss_ctx;
 369                 struct mlx4_ib_sqp *sqp;
 370         };
 371 };
 372
 373 struct mlx4_ib_srq {
 374         struct ib_srq           ibsrq;
 375         struct mlx4_srq         msrq;
 376         struct mlx4_buf         buf;
 377         struct mlx4_db          db;
 378         u64                    *wrid;
 379         spinlock_t              lock;
 380         int                     head;
 381         int                     tail;
 382         u16                     wqe_ctr;
 383         struct ib_umem         *umem;
 384         struct mlx4_mtt         mtt;
 385         struct mutex            mutex;
 386 };
 387
 388 struct mlx4_ib_ah {
 389         struct ib_ah            ibah;
 390         union mlx4_ext_av       av;
 391 };
 392
 393 struct mlx4_ib_rwq_ind_table {
 394         struct ib_rwq_ind_table ib_rwq_ind_tbl;
 395 };
 396
 397 /****************************************/
 398 /* alias guid support */
 399 /****************************************/
 400 #define NUM_PORT_ALIAS_GUID             2
 401 #define NUM_ALIAS_GUID_IN_REC           8
 402 #define NUM_ALIAS_GUID_REC_IN_PORT      16
 403 #define GUID_REC_SIZE                   8
 404 #define NUM_ALIAS_GUID_PER_PORT         128
 405 #define MLX4_NOT_SET_GUID               (0x00LL)
 406 #define MLX4_GUID_FOR_DELETE_VAL        (~(0x00LL))
 407
 408 enum mlx4_guid_alias_rec_status {
 409         MLX4_GUID_INFO_STATUS_IDLE,
 410         MLX4_GUID_INFO_STATUS_SET,
 411 };
 412
 413 #define GUID_STATE_NEED_PORT_INIT 0x01
 414
 415 enum mlx4_guid_alias_rec_method {
 416         MLX4_GUID_INFO_RECORD_SET       = IB_MGMT_METHOD_SET,
 417         MLX4_GUID_INFO_RECORD_DELETE    = IB_SA_METHOD_DELETE,
 418 };
 419
 420 struct mlx4_sriov_alias_guid_info_rec_det {
 421         u8 all_recs[GUID_REC_SIZE * NUM_ALIAS_GUID_IN_REC];
 422         ib_sa_comp_mask guid_indexes; /*indicates what from the 8 records are valid*/
 423         enum mlx4_guid_alias_rec_status status; /*indicates the administraively status of the record.*/
 424         unsigned int guids_retry_schedule[NUM_ALIAS_GUID_IN_REC];
 425         u64 time_to_run;
 426 };
 427
 428 struct mlx4_sriov_alias_guid_port_rec_det {
 429         struct mlx4_sriov_alias_guid_info_rec_det all_rec_per_port[NUM_ALIAS_GUID_REC_IN_PORT];
 430         struct workqueue_struct *wq;
 431         struct delayed_work alias_guid_work;
 432         u32 port;
 433         u32 state_flags;
 434         struct mlx4_sriov_alias_guid *parent;
 435         struct list_head cb_list;
 436 };
 437
 438 struct mlx4_sriov_alias_guid {
 439         struct mlx4_sriov_alias_guid_port_rec_det ports_guid[MLX4_MAX_PORTS];
 440         spinlock_t ag_work_lock;
 441         struct ib_sa_client *sa_client;
 442 };
 443
 444 struct mlx4_ib_demux_work {
 445         struct work_struct      work;
 446         struct mlx4_ib_dev     *dev;
 447         int                     slave;
 448         int                     do_init;
 449         u8                      port;
 450
 451 };
 452
 453 struct mlx4_ib_tun_tx_buf {
 454         struct mlx4_ib_buf buf;
 455         struct ib_ah *ah;
 456 };
 457
 458 struct mlx4_ib_demux_pv_qp {
 459         struct ib_qp *qp;
 460         enum ib_qp_type proxy_qpt;
 461         struct mlx4_ib_buf *ring;
 462         struct mlx4_ib_tun_tx_buf *tx_ring;
 463         spinlock_t tx_lock;
 464         unsigned tx_ix_head;
 465         unsigned tx_ix_tail;
 466 };
 467
 468 enum mlx4_ib_demux_pv_state {
 469         DEMUX_PV_STATE_DOWN,
 470         DEMUX_PV_STATE_STARTING,
 471         DEMUX_PV_STATE_ACTIVE,
 472         DEMUX_PV_STATE_DOWNING,
 473 };
 474
 475 struct mlx4_ib_demux_pv_ctx {
 476         int port;
 477         int slave;
 478         enum mlx4_ib_demux_pv_state state;
 479         int has_smi;
 480         struct ib_device *ib_dev;
 481         struct ib_cq *cq;
 482         struct ib_pd *pd;
 483         struct work_struct work;
 484         struct workqueue_struct *wq;
 485         struct workqueue_struct *wi_wq;
 486         struct mlx4_ib_demux_pv_qp qp[2];
 487 };
 488
 489 struct mlx4_ib_demux_ctx {
 490         struct ib_device *ib_dev;
 491         int port;
 492         struct workqueue_struct *wq;
 493         struct workqueue_struct *wi_wq;
 494         struct workqueue_struct *ud_wq;
 495         spinlock_t ud_lock;
 496         atomic64_t subnet_prefix;
 497         __be64 guid_cache[128];
 498         struct mlx4_ib_dev *dev;
 499         /* the following lock protects both mcg_table and mcg_mgid0_list */
 500         struct mutex            mcg_table_lock;
 501         struct rb_root          mcg_table;
 502         struct list_head        mcg_mgid0_list;
 503         struct workqueue_struct *mcg_wq;
 504         struct mlx4_ib_demux_pv_ctx **tun;
 505         atomic_t tid;
 506         int    flushing; /* flushing the work queue */
 507 };
 508
 509 struct mlx4_ib_sriov {
 510         struct mlx4_ib_demux_ctx demux[MLX4_MAX_PORTS];
 511         struct mlx4_ib_demux_pv_ctx *sqps[MLX4_MAX_PORTS];
 512         /* when using this spinlock you should use "irq" because
 513          * it may be called from interrupt context.*/
 514         spinlock_t going_down_lock;
 515         int is_going_down;
 516
 517         struct mlx4_sriov_alias_guid alias_guid;
 518
 519         /* CM paravirtualization fields */
 520         struct xarray pv_id_table;
 521         u32 pv_id_next;
 522         spinlock_t id_map_lock;
 523         struct rb_root sl_id_map;
 524         struct list_head cm_list;
 525         struct xarray xa_rej_tmout;
 526 };
 527
 528 struct gid_cache_context {
 529         int real_index;
 530         int refcount;
 531 };
 532
 533 struct gid_entry {
 534         union ib_gid    gid;
 535         enum ib_gid_type gid_type;
 536         struct gid_cache_context *ctx;
 537         u16 vlan_id;
 538 };
 539
 540 struct mlx4_port_gid_table {
 541         struct gid_entry gids[MLX4_MAX_PORT_GIDS];
 542 };
 543
 544 struct mlx4_ib_iboe {
 545         spinlock_t              lock;
 546         struct net_device      *netdevs[MLX4_MAX_PORTS];
 547         atomic64_t              mac[MLX4_MAX_PORTS];
 548         struct notifier_block   nb;
 549         struct mlx4_port_gid_table gids[MLX4_MAX_PORTS];
 550         enum ib_port_state      last_port_state[MLX4_MAX_PORTS];
 551 };
 552
 553 struct pkey_mgt {
 554         u8                      virt2phys_pkey[MLX4_MFUNC_MAX][MLX4_MAX_PORTS][MLX4_MAX_PORT_PKEYS];
 555         u16                     phys_pkey_cache[MLX4_MAX_PORTS][MLX4_MAX_PORT_PKEYS];
 556         struct list_head        pkey_port_list[MLX4_MFUNC_MAX];
 557         struct kobject         *device_parent[MLX4_MFUNC_MAX];
 558 };
 559
 560 struct mlx4_ib_iov_sysfs_attr {
 561         void *ctx;
 562         struct kobject *kobj;
 563         unsigned long data;
 564         u32 entry_num;
 565         char name[15];
 566         struct device_attribute dentry;
 567         struct device *dev;
 568 };
 569
 570 struct mlx4_ib_iov_sysfs_attr_ar {
 571         struct mlx4_ib_iov_sysfs_attr dentries[3 * NUM_ALIAS_GUID_PER_PORT + 1];
 572 };
 573
 574 struct mlx4_ib_iov_port {
 575         char name[100];
 576         u8 num;
 577         struct mlx4_ib_dev *dev;
 578         struct list_head list;
 579         struct mlx4_ib_iov_sysfs_attr_ar *dentr_ar;
 580         struct ib_port_attr attr;
 581         struct kobject  *cur_port;
 582         struct kobject  *admin_alias_parent;
 583         struct kobject  *gids_parent;
 584         struct kobject  *pkeys_parent;
 585         struct kobject  *mcgs_parent;
 586         struct mlx4_ib_iov_sysfs_attr mcg_dentry;
 587 };
 588
 589 struct counter_index {
 590         struct  list_head       list;
 591         u32             index;
 592         u8              allocated;
 593 };
 594
 595 struct mlx4_ib_counters {
 596         struct list_head        counters_list;
 597         struct mutex            mutex; /* mutex for accessing counters list */
 598         u32                     default_counter;
 599 };
 600
 601 #define MLX4_DIAG_COUNTERS_TYPES 2
 602
 603 struct mlx4_ib_diag_counters {
 604         const char **name;
 605         u32 *offset;
 606         u32 num_counters;
 607 };
 608
 609 struct mlx4_ib_dev {
 610         struct ib_device        ib_dev;
 611         struct mlx4_dev        *dev;
 612         int                     num_ports;
 613         void __iomem           *uar_map;
 614
 615         struct mlx4_uar         priv_uar;
 616         u32                     priv_pdn;
 617         MLX4_DECLARE_DOORBELL_LOCK(uar_lock);
 618
 619         struct ib_mad_agent    *send_agent[MLX4_MAX_PORTS][2];
 620         struct ib_ah           *sm_ah[MLX4_MAX_PORTS];
 621         spinlock_t              sm_lock;
 622         atomic64_t              sl2vl[MLX4_MAX_PORTS];
 623         struct mlx4_ib_sriov    sriov;
 624
 625         struct mutex            cap_mask_mutex;
 626         bool                    ib_active;
 627         struct mlx4_ib_iboe     iboe;
 628         struct mlx4_ib_counters counters_table[MLX4_MAX_PORTS];
 629         int                    *eq_table;
 630         struct kobject         *iov_parent;
 631         struct kobject         *ports_parent;
 632         struct kobject         *dev_ports_parent[MLX4_MFUNC_MAX];
 633         struct mlx4_ib_iov_port iov_ports[MLX4_MAX_PORTS];
 634         struct pkey_mgt         pkeys;
 635         unsigned long *ib_uc_qpns_bitmap;
 636         int steer_qpn_count;
 637         int steer_qpn_base;
 638         int steering_support;
 639         struct mlx4_ib_qp      *qp1_proxy[MLX4_MAX_PORTS];
 640         /* lock when destroying qp1_proxy and getting netdev events */
 641         struct mutex            qp1_proxy_lock[MLX4_MAX_PORTS];
 642         u8                      bond_next_port;
 643         /* protect resources needed as part of reset flow */
 644         spinlock_t              reset_flow_resource_lock;
 645         struct list_head                qp_list;
 646         struct mlx4_ib_diag_counters diag_counters[MLX4_DIAG_COUNTERS_TYPES];
 647 };
 648
 649 struct ib_event_work {
 650         struct work_struct      work;
 651         struct mlx4_ib_dev      *ib_dev;
 652         struct mlx4_eqe         ib_eqe;
 653         int                     port;
 654 };
 655
 656 struct mlx4_ib_qp_tunnel_init_attr {
 657         struct ib_qp_init_attr init_attr;
 658         int slave;
 659         enum ib_qp_type proxy_qp_type;
 660         u32 port;
 661 };
 662
 663 struct mlx4_uverbs_ex_query_device {
 664         __u32 comp_mask;
 665         __u32 reserved;
 666 };
 667
 668 static inline struct mlx4_ib_dev *to_mdev(struct ib_device *ibdev)
 669 {
 670         return container_of(ibdev, struct mlx4_ib_dev, ib_dev);
 671 }
 672
 673 static inline struct mlx4_ib_ucontext *to_mucontext(struct ib_ucontext *ibucontext)
 674 {
 675         return container_of(ibucontext, struct mlx4_ib_ucontext, ibucontext);
 676 }
 677
 678 static inline struct mlx4_ib_pd *to_mpd(struct ib_pd *ibpd)
 679 {
 680         return container_of(ibpd, struct mlx4_ib_pd, ibpd);
 681 }
 682
 683 static inline struct mlx4_ib_xrcd *to_mxrcd(struct ib_xrcd *ibxrcd)
 684 {
 685         return container_of(ibxrcd, struct mlx4_ib_xrcd, ibxrcd);
 686 }
 687
 688 static inline struct mlx4_ib_cq *to_mcq(struct ib_cq *ibcq)
 689 {
 690         return container_of(ibcq, struct mlx4_ib_cq, ibcq);
 691 }
 692
 693 static inline struct mlx4_ib_cq *to_mibcq(struct mlx4_cq *mcq)
 694 {
 695         return container_of(mcq, struct mlx4_ib_cq, mcq);
 696 }
 697
 698 static inline struct mlx4_ib_mr *to_mmr(struct ib_mr *ibmr)
 699 {
 700         return container_of(ibmr, struct mlx4_ib_mr, ibmr);
 701 }
 702
 703 static inline struct mlx4_ib_mw *to_mmw(struct ib_mw *ibmw)
 704 {
 705         return container_of(ibmw, struct mlx4_ib_mw, ibmw);
 706 }
 707
 708 static inline struct mlx4_ib_flow *to_mflow(struct ib_flow *ibflow)
 709 {
 710         return container_of(ibflow, struct mlx4_ib_flow, ibflow);
 711 }
 712
 713 static inline struct mlx4_ib_qp *to_mqp(struct ib_qp *ibqp)
 714 {
 715         return container_of(ibqp, struct mlx4_ib_qp, ibqp);
 716 }
 717
 718 static inline struct mlx4_ib_qp *to_mibqp(struct mlx4_qp *mqp)
 719 {
 720         return container_of(mqp, struct mlx4_ib_qp, mqp);
 721 }
 722
 723 static inline struct mlx4_ib_srq *to_msrq(struct ib_srq *ibsrq)
 724 {
 725         return container_of(ibsrq, struct mlx4_ib_srq, ibsrq);
 726 }
 727
 728 static inline struct mlx4_ib_srq *to_mibsrq(struct mlx4_srq *msrq)
 729 {
 730         return container_of(msrq, struct mlx4_ib_srq, msrq);
 731 }
 732
 733 static inline struct mlx4_ib_ah *to_mah(struct ib_ah *ibah)
 734 {
 735         return container_of(ibah, struct mlx4_ib_ah, ibah);
 736 }
 737
 738 static inline u8 mlx4_ib_bond_next_port(struct mlx4_ib_dev *dev)
 739 {
 740         dev->bond_next_port = (dev->bond_next_port + 1) % dev->num_ports;
 741
 742         return dev->bond_next_port + 1;
 743 }
 744
 745 int mlx4_ib_init_sriov(struct mlx4_ib_dev *dev);
 746 void mlx4_ib_close_sriov(struct mlx4_ib_dev *dev);
 747
 748 int mlx4_ib_db_map_user(struct ib_udata *udata, unsigned long virt,
 749                         struct mlx4_db *db);
 750 void mlx4_ib_db_unmap_user(struct mlx4_ib_ucontext *context, struct mlx4_db *db);
 751
 752 struct ib_mr *mlx4_ib_get_dma_mr(struct ib_pd *pd, int acc);
 753 int mlx4_ib_umem_write_mtt(struct mlx4_ib_dev *dev, struct mlx4_mtt *mtt,
 754                            struct ib_umem *umem);
 755 struct ib_mr *mlx4_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
 756                                   u64 virt_addr, int access_flags,
 757                                   struct ib_udata *udata);
 758 int mlx4_ib_dereg_mr(struct ib_mr *mr, struct ib_udata *udata);
 759 int mlx4_ib_alloc_mw(struct ib_mw *mw, struct ib_udata *udata);
 760 int mlx4_ib_dealloc_mw(struct ib_mw *mw);
 761 struct ib_mr *mlx4_ib_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type,
 762                                u32 max_num_sg);
 763 int mlx4_ib_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, int sg_nents,
 764                       unsigned int *sg_offset);
 765 int mlx4_ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period);
 766 int mlx4_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata);
 767 int mlx4_ib_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr,
 768                       struct ib_udata *udata);
 769 int mlx4_ib_destroy_cq(struct ib_cq *cq, struct ib_udata *udata);
 770 int mlx4_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc);
 771 int mlx4_ib_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags);
 772 void __mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq);
 773 void mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq);
 774
 775 int mlx4_ib_create_ah(struct ib_ah *ah, struct rdma_ah_init_attr *init_attr,
 776                       struct ib_udata *udata);
 777 int mlx4_ib_create_ah_slave(struct ib_ah *ah, struct rdma_ah_attr *ah_attr,
 778                             int slave_sgid_index, u8 *s_mac, u16 vlan_tag);
 779 int mlx4_ib_query_ah(struct ib_ah *ibah, struct rdma_ah_attr *ah_attr);
 780 static inline int mlx4_ib_destroy_ah(struct ib_ah *ah, u32 flags)
 781 {
 782         return 0;
 783 }
 784
 785 int mlx4_ib_create_srq(struct ib_srq *srq, struct ib_srq_init_attr *init_attr,
 786                        struct ib_udata *udata);
 787 int mlx4_ib_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
 788                        enum ib_srq_attr_mask attr_mask, struct ib_udata *udata);
 789 int mlx4_ib_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr);
 790 int mlx4_ib_destroy_srq(struct ib_srq *srq, struct ib_udata *udata);
 791 void mlx4_ib_free_srq_wqe(struct mlx4_ib_srq *srq, int wqe_index);
 792 int mlx4_ib_post_srq_recv(struct ib_srq *ibsrq, const struct ib_recv_wr *wr,
 793                           const struct ib_recv_wr **bad_wr);
 794
 795 struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
 796                                 struct ib_qp_init_attr *init_attr,
 797                                 struct ib_udata *udata);
 798 int mlx4_ib_destroy_qp(struct ib_qp *qp, struct ib_udata *udata);
 799 void mlx4_ib_drain_sq(struct ib_qp *qp);
 800 void mlx4_ib_drain_rq(struct ib_qp *qp);
 801 int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
 802                       int attr_mask, struct ib_udata *udata);
 803 int mlx4_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask,
 804                      struct ib_qp_init_attr *qp_init_attr);
 805 int mlx4_ib_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr,
 806                       const struct ib_send_wr **bad_wr);
 807 int mlx4_ib_post_recv(struct ib_qp *ibqp, const struct ib_recv_wr *wr,
 808                       const struct ib_recv_wr **bad_wr);
 809
 810 int mlx4_MAD_IFC(struct mlx4_ib_dev *dev, int mad_ifc_flags,
 811                  int port, const struct ib_wc *in_wc, const struct ib_grh *in_grh,
 812                  const void *in_mad, void *response_mad);
 813 int mlx4_ib_process_mad(struct ib_device *ibdev, int mad_flags, u32 port_num,
 814                         const struct ib_wc *in_wc, const struct ib_grh *in_grh,
 815                         const struct ib_mad *in, struct ib_mad *out,
 816                         size_t *out_mad_size, u16 *out_mad_pkey_index);
 817 int mlx4_ib_mad_init(struct mlx4_ib_dev *dev);
 818 void mlx4_ib_mad_cleanup(struct mlx4_ib_dev *dev);
 819
 820 int __mlx4_ib_query_port(struct ib_device *ibdev, u32 port,
 821                          struct ib_port_attr *props, int netw_view);
 822 int __mlx4_ib_query_pkey(struct ib_device *ibdev, u32 port, u16 index,
 823                          u16 *pkey, int netw_view);
 824
 825 int __mlx4_ib_query_gid(struct ib_device *ibdev, u32 port, int index,
 826                         union ib_gid *gid, int netw_view);
 827
 828 static inline bool mlx4_ib_ah_grh_present(struct mlx4_ib_ah *ah)
 829 {
 830         u32 port = be32_to_cpu(ah->av.ib.port_pd) >> 24 & 3;
 831
 832         if (rdma_port_get_link_layer(ah->ibah.device, port) == IB_LINK_LAYER_ETHERNET)
 833                 return true;
 834
 835         return !!(ah->av.ib.g_slid & 0x80);
 836 }
 837
 838 int mlx4_ib_mcg_port_init(struct mlx4_ib_demux_ctx *ctx);
 839 void mlx4_ib_mcg_port_cleanup(struct mlx4_ib_demux_ctx *ctx, int destroy_wq);
 840 void clean_vf_mcast(struct mlx4_ib_demux_ctx *ctx, int slave);
 841 int mlx4_ib_mcg_init(void);
 842 void mlx4_ib_mcg_destroy(void);
 843
 844 int mlx4_ib_find_real_gid(struct ib_device *ibdev, u32 port, __be64 guid);
 845
 846 int mlx4_ib_mcg_multiplex_handler(struct ib_device *ibdev, int port, int slave,
 847                                   struct ib_sa_mad *sa_mad);
 848 int mlx4_ib_mcg_demux_handler(struct ib_device *ibdev, int port, int slave,
 849                               struct ib_sa_mad *mad);
 850
 851 int mlx4_ib_add_mc(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
 852                    union ib_gid *gid);
 853
 854 void mlx4_ib_dispatch_event(struct mlx4_ib_dev *dev, u32 port_num,
 855                             enum ib_event_type type);
 856
 857 void mlx4_ib_tunnels_update_work(struct work_struct *work);
 858
 859 int mlx4_ib_send_to_slave(struct mlx4_ib_dev *dev, int slave, u32 port,
 860                           enum ib_qp_type qpt, struct ib_wc *wc,
 861                           struct ib_grh *grh, struct ib_mad *mad);
 862
 863 int mlx4_ib_send_to_wire(struct mlx4_ib_dev *dev, int slave, u32 port,
 864                          enum ib_qp_type dest_qpt, u16 pkey_index, u32 remote_qpn,
 865                          u32 qkey, struct rdma_ah_attr *attr, u8 *s_mac,
 866                          u16 vlan_id, struct ib_mad *mad);
 867
 868 __be64 mlx4_ib_get_new_demux_tid(struct mlx4_ib_demux_ctx *ctx);
 869
 870 int mlx4_ib_demux_cm_handler(struct ib_device *ibdev, int port, int *slave,
 871                 struct ib_mad *mad);
 872
 873 int mlx4_ib_multiplex_cm_handler(struct ib_device *ibdev, int port, int slave_id,
 874                 struct ib_mad *mad);
 875
 876 void mlx4_ib_cm_paravirt_init(struct mlx4_ib_dev *dev);
 877 void mlx4_ib_cm_paravirt_clean(struct mlx4_ib_dev *dev, int slave_id);
 878
 879 /* alias guid support */
 880 void mlx4_ib_init_alias_guid_work(struct mlx4_ib_dev *dev, int port);
 881 int mlx4_ib_init_alias_guid_service(struct mlx4_ib_dev *dev);
 882 void mlx4_ib_destroy_alias_guid_service(struct mlx4_ib_dev *dev);
 883 void mlx4_ib_invalidate_all_guid_record(struct mlx4_ib_dev *dev, int port);
 884
 885 void mlx4_ib_notify_slaves_on_guid_change(struct mlx4_ib_dev *dev,
 886                                           int block_num,
 887                                           u32 port_num, u8 *p_data);
 888
 889 void mlx4_ib_update_cache_on_guid_change(struct mlx4_ib_dev *dev,
 890                                          int block_num, u32 port_num,
 891                                          u8 *p_data);
 892
 893 int add_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num,
 894                             struct attribute *attr);
 895 void del_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num,
 896                              struct attribute *attr);
 897 ib_sa_comp_mask mlx4_ib_get_aguid_comp_mask_from_ix(int index);
 898 void mlx4_ib_slave_alias_guid_event(struct mlx4_ib_dev *dev, int slave,
 899                                     int port, int slave_init);
 900
 901 int mlx4_ib_device_register_sysfs(struct mlx4_ib_dev *device) ;
 902
 903 void mlx4_ib_device_unregister_sysfs(struct mlx4_ib_dev *device);
 904
 905 __be64 mlx4_ib_gen_node_guid(void);
 906
 907 int mlx4_ib_steer_qp_alloc(struct mlx4_ib_dev *dev, int count, int *qpn);
 908 void mlx4_ib_steer_qp_free(struct mlx4_ib_dev *dev, u32 qpn, int count);
 909 int mlx4_ib_steer_qp_reg(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
 910                          int is_attach);
 911 struct ib_mr *mlx4_ib_rereg_user_mr(struct ib_mr *mr, int flags, u64 start,
 912                                     u64 length, u64 virt_addr,
 913                                     int mr_access_flags, struct ib_pd *pd,
 914                                     struct ib_udata *udata);
 915 int mlx4_ib_gid_index_to_real_index(struct mlx4_ib_dev *ibdev,
 916                                     const struct ib_gid_attr *attr);
 917
 918 void mlx4_sched_ib_sl2vl_update_work(struct mlx4_ib_dev *ibdev,
 919                                      int port);
 920
 921 void mlx4_ib_sl2vl_update(struct mlx4_ib_dev *mdev, int port);
 922
 923 struct ib_wq *mlx4_ib_create_wq(struct ib_pd *pd,
 924                                 struct ib_wq_init_attr *init_attr,
 925                                 struct ib_udata *udata);
 926 int mlx4_ib_destroy_wq(struct ib_wq *wq, struct ib_udata *udata);
 927 int mlx4_ib_modify_wq(struct ib_wq *wq, struct ib_wq_attr *wq_attr,
 928                       u32 wq_attr_mask, struct ib_udata *udata);
 929
 930 int mlx4_ib_create_rwq_ind_table(struct ib_rwq_ind_table *ib_rwq_ind_tbl,
 931                                  struct ib_rwq_ind_table_init_attr *init_attr,
 932                                  struct ib_udata *udata);
 933 static inline int
 934 mlx4_ib_destroy_rwq_ind_table(struct ib_rwq_ind_table *wq_ind_table)
 935 {
 936         return 0;
 937 }
 938 int mlx4_ib_umem_calc_optimal_mtt_size(struct ib_umem *umem, u64 start_va,
 939                                        int *num_of_mtts);
 940
 941 #endif /* MLX4_IB_H */