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
  46 #include <linux/mlx4/device.h>
  47 #include <linux/mlx4/doorbell.h>
  48
  49 #define MLX4_IB_DRV_NAME        "mlx4_ib"
  50
  51 #ifdef pr_fmt
  52 #undef pr_fmt
  53 #endif
  54 #define pr_fmt(fmt)     "<" MLX4_IB_DRV_NAME "> %s: " fmt, __func__
  55
  56 #define mlx4_ib_warn(ibdev, format, arg...) \
  57         dev_warn((ibdev)->dma_device, MLX4_IB_DRV_NAME ": " format, ## arg)
  58
  59 enum {
  60         MLX4_IB_SQ_MIN_WQE_SHIFT = 6,
  61         MLX4_IB_MAX_HEADROOM     = 2048
  62 };
  63
  64 #define MLX4_IB_SQ_HEADROOM(shift)      ((MLX4_IB_MAX_HEADROOM >> (shift)) + 1)
  65 #define MLX4_IB_SQ_MAX_SPARE            (MLX4_IB_SQ_HEADROOM(MLX4_IB_SQ_MIN_WQE_SHIFT))
  66
  67 struct mlx4_ib_ucontext {
  68         struct ib_ucontext      ibucontext;
  69         struct mlx4_uar         uar;
  70         struct list_head        db_page_list;
  71         struct mutex            db_page_mutex;
  72 };
  73
  74 struct mlx4_ib_pd {
  75         struct ib_pd            ibpd;
  76         u32                     pdn;
  77 };
  78
  79 struct mlx4_ib_xrcd {
  80         struct ib_xrcd          ibxrcd;
  81         u32                     xrcdn;
  82         struct ib_pd           *pd;
  83         struct ib_cq           *cq;
  84 };
  85
  86 struct mlx4_ib_cq_buf {
  87         struct mlx4_buf         buf;
  88         struct mlx4_mtt         mtt;
  89 };
  90
  91 struct mlx4_ib_cq_resize {
  92         struct mlx4_ib_cq_buf   buf;
  93         int                     cqe;
  94 };
  95
  96 struct mlx4_ib_cq {
  97         struct ib_cq            ibcq;
  98         struct mlx4_cq          mcq;
  99         struct mlx4_ib_cq_buf   buf;
 100         struct mlx4_ib_cq_resize *resize_buf;
 101         struct mlx4_db          db;
 102         spinlock_t              lock;
 103         struct mutex            resize_mutex;
 104         struct ib_umem         *umem;
 105         struct ib_umem         *resize_umem;
 106 };
 107
 108 struct mlx4_ib_mr {
 109         struct ib_mr            ibmr;
 110         struct mlx4_mr          mmr;
 111         struct ib_umem         *umem;
 112 };
 113
 114 struct mlx4_ib_fast_reg_page_list {
 115         struct ib_fast_reg_page_list    ibfrpl;
 116         __be64                         *mapped_page_list;
 117         dma_addr_t                      map;
 118 };
 119
 120 struct mlx4_ib_fmr {
 121         struct ib_fmr           ibfmr;
 122         struct mlx4_fmr         mfmr;
 123 };
 124
 125 struct mlx4_ib_wq {
 126         u64                    *wrid;
 127         spinlock_t              lock;
 128         int                     wqe_cnt;
 129         int                     max_post;
 130         int                     max_gs;
 131         int                     offset;
 132         int                     wqe_shift;
 133         unsigned                head;
 134         unsigned                tail;
 135 };
 136
 137 enum mlx4_ib_qp_flags {
 138         MLX4_IB_QP_LSO = IB_QP_CREATE_IPOIB_UD_LSO,
 139         MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK = IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK,
 140         MLX4_IB_SRIOV_TUNNEL_QP = 1 << 30,
 141         MLX4_IB_SRIOV_SQP = 1 << 31,
 142 };
 143
 144 struct mlx4_ib_gid_entry {
 145         struct list_head        list;
 146         union ib_gid            gid;
 147         int                     added;
 148         u8                      port;
 149 };
 150
 151 enum mlx4_ib_qp_type {
 152         /*
 153          * IB_QPT_SMI and IB_QPT_GSI have to be the first two entries
 154          * here (and in that order) since the MAD layer uses them as
 155          * indices into a 2-entry table.
 156          */
 157         MLX4_IB_QPT_SMI = IB_QPT_SMI,
 158         MLX4_IB_QPT_GSI = IB_QPT_GSI,
 159
 160         MLX4_IB_QPT_RC = IB_QPT_RC,
 161         MLX4_IB_QPT_UC = IB_QPT_UC,
 162         MLX4_IB_QPT_UD = IB_QPT_UD,
 163         MLX4_IB_QPT_RAW_IPV6 = IB_QPT_RAW_IPV6,
 164         MLX4_IB_QPT_RAW_ETHERTYPE = IB_QPT_RAW_ETHERTYPE,
 165         MLX4_IB_QPT_RAW_PACKET = IB_QPT_RAW_PACKET,
 166         MLX4_IB_QPT_XRC_INI = IB_QPT_XRC_INI,
 167         MLX4_IB_QPT_XRC_TGT = IB_QPT_XRC_TGT,
 168
 169         MLX4_IB_QPT_PROXY_SMI_OWNER     = 1 << 16,
 170         MLX4_IB_QPT_PROXY_SMI           = 1 << 17,
 171         MLX4_IB_QPT_PROXY_GSI           = 1 << 18,
 172         MLX4_IB_QPT_TUN_SMI_OWNER       = 1 << 19,
 173         MLX4_IB_QPT_TUN_SMI             = 1 << 20,
 174         MLX4_IB_QPT_TUN_GSI             = 1 << 21,
 175 };
 176
 177 #define MLX4_IB_QPT_ANY_SRIOV   (MLX4_IB_QPT_PROXY_SMI_OWNER | \
 178         MLX4_IB_QPT_PROXY_SMI | MLX4_IB_QPT_PROXY_GSI | MLX4_IB_QPT_TUN_SMI_OWNER | \
 179         MLX4_IB_QPT_TUN_SMI | MLX4_IB_QPT_TUN_GSI)
 180
 181 enum mlx4_ib_mad_ifc_flags {
 182         MLX4_MAD_IFC_IGNORE_MKEY        = 1,
 183         MLX4_MAD_IFC_IGNORE_BKEY        = 2,
 184         MLX4_MAD_IFC_IGNORE_KEYS        = (MLX4_MAD_IFC_IGNORE_MKEY |
 185                                            MLX4_MAD_IFC_IGNORE_BKEY),
 186         MLX4_MAD_IFC_NET_VIEW           = 4,
 187 };
 188
 189 enum {
 190         MLX4_NUM_TUNNEL_BUFS            = 256,
 191 };
 192
 193 struct mlx4_ib_tunnel_header {
 194         struct mlx4_av av;
 195         __be32 remote_qpn;
 196         __be32 qkey;
 197         __be16 vlan;
 198         u8 mac[6];
 199         __be16 pkey_index;
 200         u8 reserved[6];
 201 };
 202
 203 struct mlx4_ib_buf {
 204         void *addr;
 205         dma_addr_t map;
 206 };
 207
 208 struct mlx4_rcv_tunnel_hdr {
 209         __be32 flags_src_qp; /* flags[6:5] is defined for VLANs:
 210                               * 0x0 - no vlan was in the packet
 211                               * 0x01 - C-VLAN was in the packet */
 212         u8 g_ml_path; /* gid bit stands for ipv6/4 header in RoCE */
 213         u8 reserved;
 214         __be16 pkey_index;
 215         __be16 sl_vid;
 216         __be16 slid_mac_47_32;
 217         __be32 mac_31_0;
 218 };
 219
 220 struct mlx4_ib_proxy_sqp_hdr {
 221         struct ib_grh grh;
 222         struct mlx4_rcv_tunnel_hdr tun;
 223 }  __packed;
 224
 225 struct mlx4_ib_qp {
 226         struct ib_qp            ibqp;
 227         struct mlx4_qp          mqp;
 228         struct mlx4_buf         buf;
 229
 230         struct mlx4_db          db;
 231         struct mlx4_ib_wq       rq;
 232
 233         u32                     doorbell_qpn;
 234         __be32                  sq_signal_bits;
 235         unsigned                sq_next_wqe;
 236         int                     sq_max_wqes_per_wr;
 237         int                     sq_spare_wqes;
 238         struct mlx4_ib_wq       sq;
 239
 240         enum mlx4_ib_qp_type    mlx4_ib_qp_type;
 241         struct ib_umem         *umem;
 242         struct mlx4_mtt         mtt;
 243         int                     buf_size;
 244         struct mutex            mutex;
 245         u16                     xrcdn;
 246         u32                     flags;
 247         u8                      port;
 248         u8                      alt_port;
 249         u8                      atomic_rd_en;
 250         u8                      resp_depth;
 251         u8                      sq_no_prefetch;
 252         u8                      state;
 253         int                     mlx_type;
 254         struct list_head        gid_list;
 255         struct list_head        steering_rules;
 256         struct mlx4_ib_buf      *sqp_proxy_rcv;
 257
 258 };
 259
 260 struct mlx4_ib_srq {
 261         struct ib_srq           ibsrq;
 262         struct mlx4_srq         msrq;
 263         struct mlx4_buf         buf;
 264         struct mlx4_db          db;
 265         u64                    *wrid;
 266         spinlock_t              lock;
 267         int                     head;
 268         int                     tail;
 269         u16                     wqe_ctr;
 270         struct ib_umem         *umem;
 271         struct mlx4_mtt         mtt;
 272         struct mutex            mutex;
 273 };
 274
 275 struct mlx4_ib_ah {
 276         struct ib_ah            ibah;
 277         union mlx4_ext_av       av;
 278 };
 279
 280 struct mlx4_ib_demux_work {
 281         struct work_struct      work;
 282         struct mlx4_ib_dev     *dev;
 283         int                     slave;
 284         int                     do_init;
 285         u8                      port;
 286
 287 };
 288
 289 struct mlx4_ib_tun_tx_buf {
 290         struct mlx4_ib_buf buf;
 291         struct ib_ah *ah;
 292 };
 293
 294 struct mlx4_ib_demux_pv_qp {
 295         struct ib_qp *qp;
 296         enum ib_qp_type proxy_qpt;
 297         struct mlx4_ib_buf *ring;
 298         struct mlx4_ib_tun_tx_buf *tx_ring;
 299         spinlock_t tx_lock;
 300         unsigned tx_ix_head;
 301         unsigned tx_ix_tail;
 302 };
 303
 304 enum mlx4_ib_demux_pv_state {
 305         DEMUX_PV_STATE_DOWN,
 306         DEMUX_PV_STATE_STARTING,
 307         DEMUX_PV_STATE_ACTIVE,
 308         DEMUX_PV_STATE_DOWNING,
 309 };
 310
 311 struct mlx4_ib_demux_pv_ctx {
 312         int port;
 313         int slave;
 314         enum mlx4_ib_demux_pv_state state;
 315         int has_smi;
 316         struct ib_device *ib_dev;
 317         struct ib_cq *cq;
 318         struct ib_pd *pd;
 319         struct ib_mr *mr;
 320         struct work_struct work;
 321         struct workqueue_struct *wq;
 322         struct mlx4_ib_demux_pv_qp qp[2];
 323 };
 324
 325 struct mlx4_ib_demux_ctx {
 326         struct ib_device *ib_dev;
 327         int port;
 328         struct workqueue_struct *wq;
 329         struct workqueue_struct *ud_wq;
 330         spinlock_t ud_lock;
 331         __be64 subnet_prefix;
 332         __be64 guid_cache[128];
 333         struct mlx4_ib_dev *dev;
 334         /* the following lock protects both mcg_table and mcg_mgid0_list */
 335         struct mutex            mcg_table_lock;
 336         struct rb_root          mcg_table;
 337         struct list_head        mcg_mgid0_list;
 338         struct workqueue_struct *mcg_wq;
 339         struct mlx4_ib_demux_pv_ctx **tun;
 340         atomic_t tid;
 341         int    flushing; /* flushing the work queue */
 342 };
 343
 344 struct mlx4_ib_sriov {
 345         struct mlx4_ib_demux_ctx demux[MLX4_MAX_PORTS];
 346         struct mlx4_ib_demux_pv_ctx *sqps[MLX4_MAX_PORTS];
 347         /* when using this spinlock you should use "irq" because
 348          * it may be called from interrupt context.*/
 349         spinlock_t going_down_lock;
 350         int is_going_down;
 351
 352         /* CM paravirtualization fields */
 353         struct list_head cm_list;
 354         spinlock_t id_map_lock;
 355         struct rb_root sl_id_map;
 356         struct idr pv_id_table;
 357 };
 358
 359 struct mlx4_ib_iboe {
 360         spinlock_t              lock;
 361         struct net_device      *netdevs[MLX4_MAX_PORTS];
 362         struct notifier_block   nb;
 363         union ib_gid            gid_table[MLX4_MAX_PORTS][128];
 364 };
 365
 366 struct pkey_mgt {
 367         u8                      virt2phys_pkey[MLX4_MFUNC_MAX][MLX4_MAX_PORTS][MLX4_MAX_PORT_PKEYS];
 368         u16                     phys_pkey_cache[MLX4_MAX_PORTS][MLX4_MAX_PORT_PKEYS];
 369         struct list_head        pkey_port_list[MLX4_MFUNC_MAX];
 370         struct kobject         *device_parent[MLX4_MFUNC_MAX];
 371 };
 372
 373 struct mlx4_ib_dev {
 374         struct ib_device        ib_dev;
 375         struct mlx4_dev        *dev;
 376         int                     num_ports;
 377         void __iomem           *uar_map;
 378
 379         struct mlx4_uar         priv_uar;
 380         u32                     priv_pdn;
 381         MLX4_DECLARE_DOORBELL_LOCK(uar_lock);
 382
 383         struct ib_mad_agent    *send_agent[MLX4_MAX_PORTS][2];
 384         struct ib_ah           *sm_ah[MLX4_MAX_PORTS];
 385         spinlock_t              sm_lock;
 386         struct mlx4_ib_sriov    sriov;
 387
 388         struct mutex            cap_mask_mutex;
 389         bool                    ib_active;
 390         struct mlx4_ib_iboe     iboe;
 391         int                     counters[MLX4_MAX_PORTS];
 392         int                    *eq_table;
 393         int                     eq_added;
 394         struct pkey_mgt         pkeys;
 395 };
 396
 397 struct ib_event_work {
 398         struct work_struct      work;
 399         struct mlx4_ib_dev      *ib_dev;
 400         struct mlx4_eqe         ib_eqe;
 401 };
 402
 403 struct mlx4_ib_qp_tunnel_init_attr {
 404         struct ib_qp_init_attr init_attr;
 405         int slave;
 406         enum ib_qp_type proxy_qp_type;
 407         u8 port;
 408 };
 409
 410 static inline struct mlx4_ib_dev *to_mdev(struct ib_device *ibdev)
 411 {
 412         return container_of(ibdev, struct mlx4_ib_dev, ib_dev);
 413 }
 414
 415 static inline struct mlx4_ib_ucontext *to_mucontext(struct ib_ucontext *ibucontext)
 416 {
 417         return container_of(ibucontext, struct mlx4_ib_ucontext, ibucontext);
 418 }
 419
 420 static inline struct mlx4_ib_pd *to_mpd(struct ib_pd *ibpd)
 421 {
 422         return container_of(ibpd, struct mlx4_ib_pd, ibpd);
 423 }
 424
 425 static inline struct mlx4_ib_xrcd *to_mxrcd(struct ib_xrcd *ibxrcd)
 426 {
 427         return container_of(ibxrcd, struct mlx4_ib_xrcd, ibxrcd);
 428 }
 429
 430 static inline struct mlx4_ib_cq *to_mcq(struct ib_cq *ibcq)
 431 {
 432         return container_of(ibcq, struct mlx4_ib_cq, ibcq);
 433 }
 434
 435 static inline struct mlx4_ib_cq *to_mibcq(struct mlx4_cq *mcq)
 436 {
 437         return container_of(mcq, struct mlx4_ib_cq, mcq);
 438 }
 439
 440 static inline struct mlx4_ib_mr *to_mmr(struct ib_mr *ibmr)
 441 {
 442         return container_of(ibmr, struct mlx4_ib_mr, ibmr);
 443 }
 444
 445 static inline struct mlx4_ib_fast_reg_page_list *to_mfrpl(struct ib_fast_reg_page_list *ibfrpl)
 446 {
 447         return container_of(ibfrpl, struct mlx4_ib_fast_reg_page_list, ibfrpl);
 448 }
 449
 450 static inline struct mlx4_ib_fmr *to_mfmr(struct ib_fmr *ibfmr)
 451 {
 452         return container_of(ibfmr, struct mlx4_ib_fmr, ibfmr);
 453 }
 454 static inline struct mlx4_ib_qp *to_mqp(struct ib_qp *ibqp)
 455 {
 456         return container_of(ibqp, struct mlx4_ib_qp, ibqp);
 457 }
 458
 459 static inline struct mlx4_ib_qp *to_mibqp(struct mlx4_qp *mqp)
 460 {
 461         return container_of(mqp, struct mlx4_ib_qp, mqp);
 462 }
 463
 464 static inline struct mlx4_ib_srq *to_msrq(struct ib_srq *ibsrq)
 465 {
 466         return container_of(ibsrq, struct mlx4_ib_srq, ibsrq);
 467 }
 468
 469 static inline struct mlx4_ib_srq *to_mibsrq(struct mlx4_srq *msrq)
 470 {
 471         return container_of(msrq, struct mlx4_ib_srq, msrq);
 472 }
 473
 474 static inline struct mlx4_ib_ah *to_mah(struct ib_ah *ibah)
 475 {
 476         return container_of(ibah, struct mlx4_ib_ah, ibah);
 477 }
 478
 479 int mlx4_ib_init_sriov(struct mlx4_ib_dev *dev);
 480 void mlx4_ib_close_sriov(struct mlx4_ib_dev *dev);
 481
 482 int mlx4_ib_db_map_user(struct mlx4_ib_ucontext *context, unsigned long virt,
 483                         struct mlx4_db *db);
 484 void mlx4_ib_db_unmap_user(struct mlx4_ib_ucontext *context, struct mlx4_db *db);
 485
 486 struct ib_mr *mlx4_ib_get_dma_mr(struct ib_pd *pd, int acc);
 487 int mlx4_ib_umem_write_mtt(struct mlx4_ib_dev *dev, struct mlx4_mtt *mtt,
 488                            struct ib_umem *umem);
 489 struct ib_mr *mlx4_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
 490                                   u64 virt_addr, int access_flags,
 491                                   struct ib_udata *udata);
 492 int mlx4_ib_dereg_mr(struct ib_mr *mr);
 493 struct ib_mr *mlx4_ib_alloc_fast_reg_mr(struct ib_pd *pd,
 494                                         int max_page_list_len);
 495 struct ib_fast_reg_page_list *mlx4_ib_alloc_fast_reg_page_list(struct ib_device *ibdev,
 496                                                                int page_list_len);
 497 void mlx4_ib_free_fast_reg_page_list(struct ib_fast_reg_page_list *page_list);
 498
 499 int mlx4_ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period);
 500 int mlx4_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata);
 501 struct ib_cq *mlx4_ib_create_cq(struct ib_device *ibdev, int entries, int vector,
 502                                 struct ib_ucontext *context,
 503                                 struct ib_udata *udata);
 504 int mlx4_ib_destroy_cq(struct ib_cq *cq);
 505 int mlx4_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc);
 506 int mlx4_ib_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags);
 507 void __mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq);
 508 void mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq);
 509
 510 struct ib_ah *mlx4_ib_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr);
 511 int mlx4_ib_query_ah(struct ib_ah *ibah, struct ib_ah_attr *ah_attr);
 512 int mlx4_ib_destroy_ah(struct ib_ah *ah);
 513
 514 struct ib_srq *mlx4_ib_create_srq(struct ib_pd *pd,
 515                                   struct ib_srq_init_attr *init_attr,
 516                                   struct ib_udata *udata);
 517 int mlx4_ib_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
 518                        enum ib_srq_attr_mask attr_mask, struct ib_udata *udata);
 519 int mlx4_ib_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr);
 520 int mlx4_ib_destroy_srq(struct ib_srq *srq);
 521 void mlx4_ib_free_srq_wqe(struct mlx4_ib_srq *srq, int wqe_index);
 522 int mlx4_ib_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr,
 523                           struct ib_recv_wr **bad_wr);
 524
 525 struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
 526                                 struct ib_qp_init_attr *init_attr,
 527                                 struct ib_udata *udata);
 528 int mlx4_ib_destroy_qp(struct ib_qp *qp);
 529 int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
 530                       int attr_mask, struct ib_udata *udata);
 531 int mlx4_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask,
 532                      struct ib_qp_init_attr *qp_init_attr);
 533 int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
 534                       struct ib_send_wr **bad_wr);
 535 int mlx4_ib_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr,
 536                       struct ib_recv_wr **bad_wr);
 537
 538 int mlx4_MAD_IFC(struct mlx4_ib_dev *dev, int mad_ifc_flags,
 539                  int port, struct ib_wc *in_wc, struct ib_grh *in_grh,
 540                  void *in_mad, void *response_mad);
 541 int mlx4_ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
 542                         struct ib_wc *in_wc, struct ib_grh *in_grh,
 543                         struct ib_mad *in_mad, struct ib_mad *out_mad);
 544 int mlx4_ib_mad_init(struct mlx4_ib_dev *dev);
 545 void mlx4_ib_mad_cleanup(struct mlx4_ib_dev *dev);
 546
 547 struct ib_fmr *mlx4_ib_fmr_alloc(struct ib_pd *pd, int mr_access_flags,
 548                                   struct ib_fmr_attr *fmr_attr);
 549 int mlx4_ib_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list, int npages,
 550                          u64 iova);
 551 int mlx4_ib_unmap_fmr(struct list_head *fmr_list);
 552 int mlx4_ib_fmr_dealloc(struct ib_fmr *fmr);
 553 int __mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
 554                          struct ib_port_attr *props, int netw_view);
 555 int __mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
 556                          u16 *pkey, int netw_view);
 557
 558 int mlx4_ib_resolve_grh(struct mlx4_ib_dev *dev, const struct ib_ah_attr *ah_attr,
 559                         u8 *mac, int *is_mcast, u8 port);
 560
 561 static inline int mlx4_ib_ah_grh_present(struct mlx4_ib_ah *ah)
 562 {
 563         u8 port = be32_to_cpu(ah->av.ib.port_pd) >> 24 & 3;
 564
 565         if (rdma_port_get_link_layer(ah->ibah.device, port) == IB_LINK_LAYER_ETHERNET)
 566                 return 1;
 567
 568         return !!(ah->av.ib.g_slid & 0x80);
 569 }
 570
 571 int mlx4_ib_mcg_port_init(struct mlx4_ib_demux_ctx *ctx);
 572 void mlx4_ib_mcg_port_cleanup(struct mlx4_ib_demux_ctx *ctx, int destroy_wq);
 573 void clean_vf_mcast(struct mlx4_ib_demux_ctx *ctx, int slave);
 574 int mlx4_ib_mcg_init(void);
 575 void mlx4_ib_mcg_destroy(void);
 576
 577 int mlx4_ib_find_real_gid(struct ib_device *ibdev, u8 port, __be64 guid);
 578
 579 int mlx4_ib_mcg_multiplex_handler(struct ib_device *ibdev, int port, int slave,
 580                                   struct ib_sa_mad *sa_mad);
 581 int mlx4_ib_mcg_demux_handler(struct ib_device *ibdev, int port, int slave,
 582                               struct ib_sa_mad *mad);
 583
 584 int mlx4_ib_add_mc(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
 585                    union ib_gid *gid);
 586
 587 void mlx4_ib_dispatch_event(struct mlx4_ib_dev *dev, u8 port_num,
 588                             enum ib_event_type type);
 589
 590 void mlx4_ib_tunnels_update_work(struct work_struct *work);
 591
 592 int mlx4_ib_send_to_slave(struct mlx4_ib_dev *dev, int slave, u8 port,
 593                           enum ib_qp_type qpt, struct ib_wc *wc,
 594                           struct ib_grh *grh, struct ib_mad *mad);
 595 int mlx4_ib_send_to_wire(struct mlx4_ib_dev *dev, int slave, u8 port,
 596                          enum ib_qp_type dest_qpt, u16 pkey_index, u32 remote_qpn,
 597                          u32 qkey, struct ib_ah_attr *attr, struct ib_mad *mad);
 598 __be64 mlx4_ib_get_new_demux_tid(struct mlx4_ib_demux_ctx *ctx);
 599
 600 int mlx4_ib_demux_cm_handler(struct ib_device *ibdev, int port, int *slave,
 601                 struct ib_mad *mad);
 602
 603 int mlx4_ib_multiplex_cm_handler(struct ib_device *ibdev, int port, int slave_id,
 604                 struct ib_mad *mad);
 605
 606 void mlx4_ib_cm_paravirt_init(struct mlx4_ib_dev *dev);
 607 void mlx4_ib_cm_paravirt_clean(struct mlx4_ib_dev *dev, int slave_id);
 608
 609 #endif /* MLX4_IB_H */