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
  50 #define MLX4_IB_DRV_NAME        "mlx4_ib"
  51
  52 #ifdef pr_fmt
  53 #undef pr_fmt
  54 #endif
  55 #define pr_fmt(fmt)     "<" MLX4_IB_DRV_NAME "> %s: " fmt, __func__
  56
  57 #define mlx4_ib_warn(ibdev, format, arg...) \
  58         dev_warn((ibdev)->dma_device, MLX4_IB_DRV_NAME ": " format, ## arg)
  59
  60 enum {
  61         MLX4_IB_SQ_MIN_WQE_SHIFT = 6,
  62         MLX4_IB_MAX_HEADROOM     = 2048
  63 };
  64
  65 #define MLX4_IB_SQ_HEADROOM(shift)      ((MLX4_IB_MAX_HEADROOM >> (shift)) + 1)
  66 #define MLX4_IB_SQ_MAX_SPARE            (MLX4_IB_SQ_HEADROOM(MLX4_IB_SQ_MIN_WQE_SHIFT))
  67
  68 /*module param to indicate if SM assigns the alias_GUID*/
  69 extern int mlx4_ib_sm_guid_assign;
  70
  71 struct mlx4_ib_ucontext {
  72         struct ib_ucontext      ibucontext;
  73         struct mlx4_uar         uar;
  74         struct list_head        db_page_list;
  75         struct mutex            db_page_mutex;
  76 };
  77
  78 struct mlx4_ib_pd {
  79         struct ib_pd            ibpd;
  80         u32                     pdn;
  81 };
  82
  83 struct mlx4_ib_xrcd {
  84         struct ib_xrcd          ibxrcd;
  85         u32                     xrcdn;
  86         struct ib_pd           *pd;
  87         struct ib_cq           *cq;
  88 };
  89
  90 struct mlx4_ib_cq_buf {
  91         struct mlx4_buf         buf;
  92         struct mlx4_mtt         mtt;
  93         int                     entry_size;
  94 };
  95
  96 struct mlx4_ib_cq_resize {
  97         struct mlx4_ib_cq_buf   buf;
  98         int                     cqe;
  99 };
 100
 101 struct mlx4_ib_cq {
 102         struct ib_cq            ibcq;
 103         struct mlx4_cq          mcq;
 104         struct mlx4_ib_cq_buf   buf;
 105         struct mlx4_ib_cq_resize *resize_buf;
 106         struct mlx4_db          db;
 107         spinlock_t              lock;
 108         struct mutex            resize_mutex;
 109         struct ib_umem         *umem;
 110         struct ib_umem         *resize_umem;
 111 };
 112
 113 struct mlx4_ib_mr {
 114         struct ib_mr            ibmr;
 115         struct mlx4_mr          mmr;
 116         struct ib_umem         *umem;
 117 };
 118
 119 struct mlx4_ib_fast_reg_page_list {
 120         struct ib_fast_reg_page_list    ibfrpl;
 121         __be64                         *mapped_page_list;
 122         dma_addr_t                      map;
 123 };
 124
 125 struct mlx4_ib_fmr {
 126         struct ib_fmr           ibfmr;
 127         struct mlx4_fmr         mfmr;
 128 };
 129
 130 struct mlx4_ib_wq {
 131         u64                    *wrid;
 132         spinlock_t              lock;
 133         int                     wqe_cnt;
 134         int                     max_post;
 135         int                     max_gs;
 136         int                     offset;
 137         int                     wqe_shift;
 138         unsigned                head;
 139         unsigned                tail;
 140 };
 141
 142 enum mlx4_ib_qp_flags {
 143         MLX4_IB_QP_LSO = IB_QP_CREATE_IPOIB_UD_LSO,
 144         MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK = IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK,
 145         MLX4_IB_SRIOV_TUNNEL_QP = 1 << 30,
 146         MLX4_IB_SRIOV_SQP = 1 << 31,
 147 };
 148
 149 struct mlx4_ib_gid_entry {
 150         struct list_head        list;
 151         union ib_gid            gid;
 152         int                     added;
 153         u8                      port;
 154 };
 155
 156 enum mlx4_ib_qp_type {
 157         /*
 158          * IB_QPT_SMI and IB_QPT_GSI have to be the first two entries
 159          * here (and in that order) since the MAD layer uses them as
 160          * indices into a 2-entry table.
 161          */
 162         MLX4_IB_QPT_SMI = IB_QPT_SMI,
 163         MLX4_IB_QPT_GSI = IB_QPT_GSI,
 164
 165         MLX4_IB_QPT_RC = IB_QPT_RC,
 166         MLX4_IB_QPT_UC = IB_QPT_UC,
 167         MLX4_IB_QPT_UD = IB_QPT_UD,
 168         MLX4_IB_QPT_RAW_IPV6 = IB_QPT_RAW_IPV6,
 169         MLX4_IB_QPT_RAW_ETHERTYPE = IB_QPT_RAW_ETHERTYPE,
 170         MLX4_IB_QPT_RAW_PACKET = IB_QPT_RAW_PACKET,
 171         MLX4_IB_QPT_XRC_INI = IB_QPT_XRC_INI,
 172         MLX4_IB_QPT_XRC_TGT = IB_QPT_XRC_TGT,
 173
 174         MLX4_IB_QPT_PROXY_SMI_OWNER     = 1 << 16,
 175         MLX4_IB_QPT_PROXY_SMI           = 1 << 17,
 176         MLX4_IB_QPT_PROXY_GSI           = 1 << 18,
 177         MLX4_IB_QPT_TUN_SMI_OWNER       = 1 << 19,
 178         MLX4_IB_QPT_TUN_SMI             = 1 << 20,
 179         MLX4_IB_QPT_TUN_GSI             = 1 << 21,
 180 };
 181
 182 #define MLX4_IB_QPT_ANY_SRIOV   (MLX4_IB_QPT_PROXY_SMI_OWNER | \
 183         MLX4_IB_QPT_PROXY_SMI | MLX4_IB_QPT_PROXY_GSI | MLX4_IB_QPT_TUN_SMI_OWNER | \
 184         MLX4_IB_QPT_TUN_SMI | MLX4_IB_QPT_TUN_GSI)
 185
 186 enum mlx4_ib_mad_ifc_flags {
 187         MLX4_MAD_IFC_IGNORE_MKEY        = 1,
 188         MLX4_MAD_IFC_IGNORE_BKEY        = 2,
 189         MLX4_MAD_IFC_IGNORE_KEYS        = (MLX4_MAD_IFC_IGNORE_MKEY |
 190                                            MLX4_MAD_IFC_IGNORE_BKEY),
 191         MLX4_MAD_IFC_NET_VIEW           = 4,
 192 };
 193
 194 enum {
 195         MLX4_NUM_TUNNEL_BUFS            = 256,
 196 };
 197
 198 struct mlx4_ib_tunnel_header {
 199         struct mlx4_av av;
 200         __be32 remote_qpn;
 201         __be32 qkey;
 202         __be16 vlan;
 203         u8 mac[6];
 204         __be16 pkey_index;
 205         u8 reserved[6];
 206 };
 207
 208 struct mlx4_ib_buf {
 209         void *addr;
 210         dma_addr_t map;
 211 };
 212
 213 struct mlx4_rcv_tunnel_hdr {
 214         __be32 flags_src_qp; /* flags[6:5] is defined for VLANs:
 215                               * 0x0 - no vlan was in the packet
 216                               * 0x01 - C-VLAN was in the packet */
 217         u8 g_ml_path; /* gid bit stands for ipv6/4 header in RoCE */
 218         u8 reserved;
 219         __be16 pkey_index;
 220         __be16 sl_vid;
 221         __be16 slid_mac_47_32;
 222         __be32 mac_31_0;
 223 };
 224
 225 struct mlx4_ib_proxy_sqp_hdr {
 226         struct ib_grh grh;
 227         struct mlx4_rcv_tunnel_hdr tun;
 228 }  __packed;
 229
 230 struct mlx4_ib_qp {
 231         struct ib_qp            ibqp;
 232         struct mlx4_qp          mqp;
 233         struct mlx4_buf         buf;
 234
 235         struct mlx4_db          db;
 236         struct mlx4_ib_wq       rq;
 237
 238         u32                     doorbell_qpn;
 239         __be32                  sq_signal_bits;
 240         unsigned                sq_next_wqe;
 241         int                     sq_max_wqes_per_wr;
 242         int                     sq_spare_wqes;
 243         struct mlx4_ib_wq       sq;
 244
 245         enum mlx4_ib_qp_type    mlx4_ib_qp_type;
 246         struct ib_umem         *umem;
 247         struct mlx4_mtt         mtt;
 248         int                     buf_size;
 249         struct mutex            mutex;
 250         u16                     xrcdn;
 251         u32                     flags;
 252         u8                      port;
 253         u8                      alt_port;
 254         u8                      atomic_rd_en;
 255         u8                      resp_depth;
 256         u8                      sq_no_prefetch;
 257         u8                      state;
 258         int                     mlx_type;
 259         struct list_head        gid_list;
 260         struct list_head        steering_rules;
 261         struct mlx4_ib_buf      *sqp_proxy_rcv;
 262
 263 };
 264
 265 struct mlx4_ib_srq {
 266         struct ib_srq           ibsrq;
 267         struct mlx4_srq         msrq;
 268         struct mlx4_buf         buf;
 269         struct mlx4_db          db;
 270         u64                    *wrid;
 271         spinlock_t              lock;
 272         int                     head;
 273         int                     tail;
 274         u16                     wqe_ctr;
 275         struct ib_umem         *umem;
 276         struct mlx4_mtt         mtt;
 277         struct mutex            mutex;
 278 };
 279
 280 struct mlx4_ib_ah {
 281         struct ib_ah            ibah;
 282         union mlx4_ext_av       av;
 283 };
 284
 285 /****************************************/
 286 /* alias guid support */
 287 /****************************************/
 288 #define NUM_PORT_ALIAS_GUID             2
 289 #define NUM_ALIAS_GUID_IN_REC           8
 290 #define NUM_ALIAS_GUID_REC_IN_PORT      16
 291 #define GUID_REC_SIZE                   8
 292 #define NUM_ALIAS_GUID_PER_PORT         128
 293 #define MLX4_NOT_SET_GUID               (0x00LL)
 294 #define MLX4_GUID_FOR_DELETE_VAL        (~(0x00LL))
 295
 296 enum mlx4_guid_alias_rec_status {
 297         MLX4_GUID_INFO_STATUS_IDLE,
 298         MLX4_GUID_INFO_STATUS_SET,
 299         MLX4_GUID_INFO_STATUS_PENDING,
 300 };
 301
 302 enum mlx4_guid_alias_rec_ownership {
 303         MLX4_GUID_DRIVER_ASSIGN,
 304         MLX4_GUID_SYSADMIN_ASSIGN,
 305         MLX4_GUID_NONE_ASSIGN, /*init state of each record*/
 306 };
 307
 308 enum mlx4_guid_alias_rec_method {
 309         MLX4_GUID_INFO_RECORD_SET       = IB_MGMT_METHOD_SET,
 310         MLX4_GUID_INFO_RECORD_DELETE    = IB_SA_METHOD_DELETE,
 311 };
 312
 313 struct mlx4_sriov_alias_guid_info_rec_det {
 314         u8 all_recs[GUID_REC_SIZE * NUM_ALIAS_GUID_IN_REC];
 315         ib_sa_comp_mask guid_indexes; /*indicates what from the 8 records are valid*/
 316         enum mlx4_guid_alias_rec_status status; /*indicates the administraively status of the record.*/
 317         u8 method; /*set or delete*/
 318         enum mlx4_guid_alias_rec_ownership ownership; /*indicates who assign that alias_guid record*/
 319 };
 320
 321 struct mlx4_sriov_alias_guid_port_rec_det {
 322         struct mlx4_sriov_alias_guid_info_rec_det all_rec_per_port[NUM_ALIAS_GUID_REC_IN_PORT];
 323         struct workqueue_struct *wq;
 324         struct delayed_work alias_guid_work;
 325         u8 port;
 326         struct mlx4_sriov_alias_guid *parent;
 327         struct list_head cb_list;
 328 };
 329
 330 struct mlx4_sriov_alias_guid {
 331         struct mlx4_sriov_alias_guid_port_rec_det ports_guid[MLX4_MAX_PORTS];
 332         spinlock_t ag_work_lock;
 333         struct ib_sa_client *sa_client;
 334 };
 335
 336 struct mlx4_ib_demux_work {
 337         struct work_struct      work;
 338         struct mlx4_ib_dev     *dev;
 339         int                     slave;
 340         int                     do_init;
 341         u8                      port;
 342
 343 };
 344
 345 struct mlx4_ib_tun_tx_buf {
 346         struct mlx4_ib_buf buf;
 347         struct ib_ah *ah;
 348 };
 349
 350 struct mlx4_ib_demux_pv_qp {
 351         struct ib_qp *qp;
 352         enum ib_qp_type proxy_qpt;
 353         struct mlx4_ib_buf *ring;
 354         struct mlx4_ib_tun_tx_buf *tx_ring;
 355         spinlock_t tx_lock;
 356         unsigned tx_ix_head;
 357         unsigned tx_ix_tail;
 358 };
 359
 360 enum mlx4_ib_demux_pv_state {
 361         DEMUX_PV_STATE_DOWN,
 362         DEMUX_PV_STATE_STARTING,
 363         DEMUX_PV_STATE_ACTIVE,
 364         DEMUX_PV_STATE_DOWNING,
 365 };
 366
 367 struct mlx4_ib_demux_pv_ctx {
 368         int port;
 369         int slave;
 370         enum mlx4_ib_demux_pv_state state;
 371         int has_smi;
 372         struct ib_device *ib_dev;
 373         struct ib_cq *cq;
 374         struct ib_pd *pd;
 375         struct ib_mr *mr;
 376         struct work_struct work;
 377         struct workqueue_struct *wq;
 378         struct mlx4_ib_demux_pv_qp qp[2];
 379 };
 380
 381 struct mlx4_ib_demux_ctx {
 382         struct ib_device *ib_dev;
 383         int port;
 384         struct workqueue_struct *wq;
 385         struct workqueue_struct *ud_wq;
 386         spinlock_t ud_lock;
 387         __be64 subnet_prefix;
 388         __be64 guid_cache[128];
 389         struct mlx4_ib_dev *dev;
 390         /* the following lock protects both mcg_table and mcg_mgid0_list */
 391         struct mutex            mcg_table_lock;
 392         struct rb_root          mcg_table;
 393         struct list_head        mcg_mgid0_list;
 394         struct workqueue_struct *mcg_wq;
 395         struct mlx4_ib_demux_pv_ctx **tun;
 396         atomic_t tid;
 397         int    flushing; /* flushing the work queue */
 398 };
 399
 400 struct mlx4_ib_sriov {
 401         struct mlx4_ib_demux_ctx demux[MLX4_MAX_PORTS];
 402         struct mlx4_ib_demux_pv_ctx *sqps[MLX4_MAX_PORTS];
 403         /* when using this spinlock you should use "irq" because
 404          * it may be called from interrupt context.*/
 405         spinlock_t going_down_lock;
 406         int is_going_down;
 407
 408         struct mlx4_sriov_alias_guid alias_guid;
 409
 410         /* CM paravirtualization fields */
 411         struct list_head cm_list;
 412         spinlock_t id_map_lock;
 413         struct rb_root sl_id_map;
 414         struct idr pv_id_table;
 415 };
 416
 417 struct mlx4_ib_iboe {
 418         spinlock_t              lock;
 419         struct net_device      *netdevs[MLX4_MAX_PORTS];
 420         struct notifier_block   nb;
 421         union ib_gid            gid_table[MLX4_MAX_PORTS][128];
 422 };
 423
 424 struct pkey_mgt {
 425         u8                      virt2phys_pkey[MLX4_MFUNC_MAX][MLX4_MAX_PORTS][MLX4_MAX_PORT_PKEYS];
 426         u16                     phys_pkey_cache[MLX4_MAX_PORTS][MLX4_MAX_PORT_PKEYS];
 427         struct list_head        pkey_port_list[MLX4_MFUNC_MAX];
 428         struct kobject         *device_parent[MLX4_MFUNC_MAX];
 429 };
 430
 431 struct mlx4_ib_iov_sysfs_attr {
 432         void *ctx;
 433         struct kobject *kobj;
 434         unsigned long data;
 435         u32 entry_num;
 436         char name[15];
 437         struct device_attribute dentry;
 438         struct device *dev;
 439 };
 440
 441 struct mlx4_ib_iov_sysfs_attr_ar {
 442         struct mlx4_ib_iov_sysfs_attr dentries[3 * NUM_ALIAS_GUID_PER_PORT + 1];
 443 };
 444
 445 struct mlx4_ib_iov_port {
 446         char name[100];
 447         u8 num;
 448         struct mlx4_ib_dev *dev;
 449         struct list_head list;
 450         struct mlx4_ib_iov_sysfs_attr_ar *dentr_ar;
 451         struct ib_port_attr attr;
 452         struct kobject  *cur_port;
 453         struct kobject  *admin_alias_parent;
 454         struct kobject  *gids_parent;
 455         struct kobject  *pkeys_parent;
 456         struct kobject  *mcgs_parent;
 457         struct mlx4_ib_iov_sysfs_attr mcg_dentry;
 458 };
 459
 460 struct mlx4_ib_dev {
 461         struct ib_device        ib_dev;
 462         struct mlx4_dev        *dev;
 463         int                     num_ports;
 464         void __iomem           *uar_map;
 465
 466         struct mlx4_uar         priv_uar;
 467         u32                     priv_pdn;
 468         MLX4_DECLARE_DOORBELL_LOCK(uar_lock);
 469
 470         struct ib_mad_agent    *send_agent[MLX4_MAX_PORTS][2];
 471         struct ib_ah           *sm_ah[MLX4_MAX_PORTS];
 472         spinlock_t              sm_lock;
 473         struct mlx4_ib_sriov    sriov;
 474
 475         struct mutex            cap_mask_mutex;
 476         bool                    ib_active;
 477         struct mlx4_ib_iboe     iboe;
 478         int                     counters[MLX4_MAX_PORTS];
 479         int                    *eq_table;
 480         int                     eq_added;
 481         struct kobject         *iov_parent;
 482         struct kobject         *ports_parent;
 483         struct kobject         *dev_ports_parent[MLX4_MFUNC_MAX];
 484         struct mlx4_ib_iov_port iov_ports[MLX4_MAX_PORTS];
 485         struct pkey_mgt         pkeys;
 486 };
 487
 488 struct ib_event_work {
 489         struct work_struct      work;
 490         struct mlx4_ib_dev      *ib_dev;
 491         struct mlx4_eqe         ib_eqe;
 492 };
 493
 494 struct mlx4_ib_qp_tunnel_init_attr {
 495         struct ib_qp_init_attr init_attr;
 496         int slave;
 497         enum ib_qp_type proxy_qp_type;
 498         u8 port;
 499 };
 500
 501 static inline struct mlx4_ib_dev *to_mdev(struct ib_device *ibdev)
 502 {
 503         return container_of(ibdev, struct mlx4_ib_dev, ib_dev);
 504 }
 505
 506 static inline struct mlx4_ib_ucontext *to_mucontext(struct ib_ucontext *ibucontext)
 507 {
 508         return container_of(ibucontext, struct mlx4_ib_ucontext, ibucontext);
 509 }
 510
 511 static inline struct mlx4_ib_pd *to_mpd(struct ib_pd *ibpd)
 512 {
 513         return container_of(ibpd, struct mlx4_ib_pd, ibpd);
 514 }
 515
 516 static inline struct mlx4_ib_xrcd *to_mxrcd(struct ib_xrcd *ibxrcd)
 517 {
 518         return container_of(ibxrcd, struct mlx4_ib_xrcd, ibxrcd);
 519 }
 520
 521 static inline struct mlx4_ib_cq *to_mcq(struct ib_cq *ibcq)
 522 {
 523         return container_of(ibcq, struct mlx4_ib_cq, ibcq);
 524 }
 525
 526 static inline struct mlx4_ib_cq *to_mibcq(struct mlx4_cq *mcq)
 527 {
 528         return container_of(mcq, struct mlx4_ib_cq, mcq);
 529 }
 530
 531 static inline struct mlx4_ib_mr *to_mmr(struct ib_mr *ibmr)
 532 {
 533         return container_of(ibmr, struct mlx4_ib_mr, ibmr);
 534 }
 535
 536 static inline struct mlx4_ib_fast_reg_page_list *to_mfrpl(struct ib_fast_reg_page_list *ibfrpl)
 537 {
 538         return container_of(ibfrpl, struct mlx4_ib_fast_reg_page_list, ibfrpl);
 539 }
 540
 541 static inline struct mlx4_ib_fmr *to_mfmr(struct ib_fmr *ibfmr)
 542 {
 543         return container_of(ibfmr, struct mlx4_ib_fmr, ibfmr);
 544 }
 545 static inline struct mlx4_ib_qp *to_mqp(struct ib_qp *ibqp)
 546 {
 547         return container_of(ibqp, struct mlx4_ib_qp, ibqp);
 548 }
 549
 550 static inline struct mlx4_ib_qp *to_mibqp(struct mlx4_qp *mqp)
 551 {
 552         return container_of(mqp, struct mlx4_ib_qp, mqp);
 553 }
 554
 555 static inline struct mlx4_ib_srq *to_msrq(struct ib_srq *ibsrq)
 556 {
 557         return container_of(ibsrq, struct mlx4_ib_srq, ibsrq);
 558 }
 559
 560 static inline struct mlx4_ib_srq *to_mibsrq(struct mlx4_srq *msrq)
 561 {
 562         return container_of(msrq, struct mlx4_ib_srq, msrq);
 563 }
 564
 565 static inline struct mlx4_ib_ah *to_mah(struct ib_ah *ibah)
 566 {
 567         return container_of(ibah, struct mlx4_ib_ah, ibah);
 568 }
 569
 570 int mlx4_ib_init_sriov(struct mlx4_ib_dev *dev);
 571 void mlx4_ib_close_sriov(struct mlx4_ib_dev *dev);
 572
 573 int mlx4_ib_db_map_user(struct mlx4_ib_ucontext *context, unsigned long virt,
 574                         struct mlx4_db *db);
 575 void mlx4_ib_db_unmap_user(struct mlx4_ib_ucontext *context, struct mlx4_db *db);
 576
 577 struct ib_mr *mlx4_ib_get_dma_mr(struct ib_pd *pd, int acc);
 578 int mlx4_ib_umem_write_mtt(struct mlx4_ib_dev *dev, struct mlx4_mtt *mtt,
 579                            struct ib_umem *umem);
 580 struct ib_mr *mlx4_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
 581                                   u64 virt_addr, int access_flags,
 582                                   struct ib_udata *udata);
 583 int mlx4_ib_dereg_mr(struct ib_mr *mr);
 584 struct ib_mr *mlx4_ib_alloc_fast_reg_mr(struct ib_pd *pd,
 585                                         int max_page_list_len);
 586 struct ib_fast_reg_page_list *mlx4_ib_alloc_fast_reg_page_list(struct ib_device *ibdev,
 587                                                                int page_list_len);
 588 void mlx4_ib_free_fast_reg_page_list(struct ib_fast_reg_page_list *page_list);
 589
 590 int mlx4_ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period);
 591 int mlx4_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata);
 592 struct ib_cq *mlx4_ib_create_cq(struct ib_device *ibdev, int entries, int vector,
 593                                 struct ib_ucontext *context,
 594                                 struct ib_udata *udata);
 595 int mlx4_ib_destroy_cq(struct ib_cq *cq);
 596 int mlx4_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc);
 597 int mlx4_ib_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags);
 598 void __mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq);
 599 void mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq);
 600
 601 struct ib_ah *mlx4_ib_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr);
 602 int mlx4_ib_query_ah(struct ib_ah *ibah, struct ib_ah_attr *ah_attr);
 603 int mlx4_ib_destroy_ah(struct ib_ah *ah);
 604
 605 struct ib_srq *mlx4_ib_create_srq(struct ib_pd *pd,
 606                                   struct ib_srq_init_attr *init_attr,
 607                                   struct ib_udata *udata);
 608 int mlx4_ib_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
 609                        enum ib_srq_attr_mask attr_mask, struct ib_udata *udata);
 610 int mlx4_ib_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr);
 611 int mlx4_ib_destroy_srq(struct ib_srq *srq);
 612 void mlx4_ib_free_srq_wqe(struct mlx4_ib_srq *srq, int wqe_index);
 613 int mlx4_ib_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr,
 614                           struct ib_recv_wr **bad_wr);
 615
 616 struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
 617                                 struct ib_qp_init_attr *init_attr,
 618                                 struct ib_udata *udata);
 619 int mlx4_ib_destroy_qp(struct ib_qp *qp);
 620 int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
 621                       int attr_mask, struct ib_udata *udata);
 622 int mlx4_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask,
 623                      struct ib_qp_init_attr *qp_init_attr);
 624 int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
 625                       struct ib_send_wr **bad_wr);
 626 int mlx4_ib_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr,
 627                       struct ib_recv_wr **bad_wr);
 628
 629 int mlx4_MAD_IFC(struct mlx4_ib_dev *dev, int mad_ifc_flags,
 630                  int port, struct ib_wc *in_wc, struct ib_grh *in_grh,
 631                  void *in_mad, void *response_mad);
 632 int mlx4_ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
 633                         struct ib_wc *in_wc, struct ib_grh *in_grh,
 634                         struct ib_mad *in_mad, struct ib_mad *out_mad);
 635 int mlx4_ib_mad_init(struct mlx4_ib_dev *dev);
 636 void mlx4_ib_mad_cleanup(struct mlx4_ib_dev *dev);
 637
 638 struct ib_fmr *mlx4_ib_fmr_alloc(struct ib_pd *pd, int mr_access_flags,
 639                                   struct ib_fmr_attr *fmr_attr);
 640 int mlx4_ib_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list, int npages,
 641                          u64 iova);
 642 int mlx4_ib_unmap_fmr(struct list_head *fmr_list);
 643 int mlx4_ib_fmr_dealloc(struct ib_fmr *fmr);
 644 int __mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
 645                          struct ib_port_attr *props, int netw_view);
 646 int __mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
 647                          u16 *pkey, int netw_view);
 648
 649 int __mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
 650                         union ib_gid *gid, int netw_view);
 651
 652 int mlx4_ib_resolve_grh(struct mlx4_ib_dev *dev, const struct ib_ah_attr *ah_attr,
 653                         u8 *mac, int *is_mcast, u8 port);
 654
 655 static inline bool mlx4_ib_ah_grh_present(struct mlx4_ib_ah *ah)
 656 {
 657         u8 port = be32_to_cpu(ah->av.ib.port_pd) >> 24 & 3;
 658
 659         if (rdma_port_get_link_layer(ah->ibah.device, port) == IB_LINK_LAYER_ETHERNET)
 660                 return true;
 661
 662         return !!(ah->av.ib.g_slid & 0x80);
 663 }
 664
 665 int mlx4_ib_mcg_port_init(struct mlx4_ib_demux_ctx *ctx);
 666 void mlx4_ib_mcg_port_cleanup(struct mlx4_ib_demux_ctx *ctx, int destroy_wq);
 667 void clean_vf_mcast(struct mlx4_ib_demux_ctx *ctx, int slave);
 668 int mlx4_ib_mcg_init(void);
 669 void mlx4_ib_mcg_destroy(void);
 670
 671 int mlx4_ib_find_real_gid(struct ib_device *ibdev, u8 port, __be64 guid);
 672
 673 int mlx4_ib_mcg_multiplex_handler(struct ib_device *ibdev, int port, int slave,
 674                                   struct ib_sa_mad *sa_mad);
 675 int mlx4_ib_mcg_demux_handler(struct ib_device *ibdev, int port, int slave,
 676                               struct ib_sa_mad *mad);
 677
 678 int mlx4_ib_add_mc(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
 679                    union ib_gid *gid);
 680
 681 void mlx4_ib_dispatch_event(struct mlx4_ib_dev *dev, u8 port_num,
 682                             enum ib_event_type type);
 683
 684 void mlx4_ib_tunnels_update_work(struct work_struct *work);
 685
 686 int mlx4_ib_send_to_slave(struct mlx4_ib_dev *dev, int slave, u8 port,
 687                           enum ib_qp_type qpt, struct ib_wc *wc,
 688                           struct ib_grh *grh, struct ib_mad *mad);
 689 int mlx4_ib_send_to_wire(struct mlx4_ib_dev *dev, int slave, u8 port,
 690                          enum ib_qp_type dest_qpt, u16 pkey_index, u32 remote_qpn,
 691                          u32 qkey, struct ib_ah_attr *attr, struct ib_mad *mad);
 692 __be64 mlx4_ib_get_new_demux_tid(struct mlx4_ib_demux_ctx *ctx);
 693
 694 int mlx4_ib_demux_cm_handler(struct ib_device *ibdev, int port, int *slave,
 695                 struct ib_mad *mad);
 696
 697 int mlx4_ib_multiplex_cm_handler(struct ib_device *ibdev, int port, int slave_id,
 698                 struct ib_mad *mad);
 699
 700 void mlx4_ib_cm_paravirt_init(struct mlx4_ib_dev *dev);
 701 void mlx4_ib_cm_paravirt_clean(struct mlx4_ib_dev *dev, int slave_id);
 702
 703 /* alias guid support */
 704 void mlx4_ib_init_alias_guid_work(struct mlx4_ib_dev *dev, int port);
 705 int mlx4_ib_init_alias_guid_service(struct mlx4_ib_dev *dev);
 706 void mlx4_ib_destroy_alias_guid_service(struct mlx4_ib_dev *dev);
 707 void mlx4_ib_invalidate_all_guid_record(struct mlx4_ib_dev *dev, int port);
 708
 709 void mlx4_ib_notify_slaves_on_guid_change(struct mlx4_ib_dev *dev,
 710                                           int block_num,
 711                                           u8 port_num, u8 *p_data);
 712
 713 void mlx4_ib_update_cache_on_guid_change(struct mlx4_ib_dev *dev,
 714                                          int block_num, u8 port_num,
 715                                          u8 *p_data);
 716
 717 int add_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num,
 718                             struct attribute *attr);
 719 void del_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num,
 720                              struct attribute *attr);
 721 ib_sa_comp_mask mlx4_ib_get_aguid_comp_mask_from_ix(int index);
 722
 723 int mlx4_ib_device_register_sysfs(struct mlx4_ib_dev *device) ;
 724
 725 void mlx4_ib_device_unregister_sysfs(struct mlx4_ib_dev *device);
 726
 727 __be64 mlx4_ib_gen_node_guid(void);
 728
 729
 730 #endif /* MLX4_IB_H */