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 #define MLX4_IB_UC_STEER_QPN_ALIGN 1
  72 #define MLX4_IB_UC_MAX_NUM_QPS     256
  73
  74 enum hw_bar_type {
  75         HW_BAR_BF,
  76         HW_BAR_DB,
  77         HW_BAR_CLOCK,
  78         HW_BAR_COUNT
  79 };
  80
  81 struct mlx4_ib_vma_private_data {
  82         struct vm_area_struct *vma;
  83 };
  84
  85 struct mlx4_ib_ucontext {
  86         struct ib_ucontext      ibucontext;
  87         struct mlx4_uar         uar;
  88         struct list_head        db_page_list;
  89         struct mutex            db_page_mutex;
  90         struct mlx4_ib_vma_private_data hw_bar_info[HW_BAR_COUNT];
  91 };
  92
  93 struct mlx4_ib_pd {
  94         struct ib_pd            ibpd;
  95         u32                     pdn;
  96 };
  97
  98 struct mlx4_ib_xrcd {
  99         struct ib_xrcd          ibxrcd;
 100         u32                     xrcdn;
 101         struct ib_pd           *pd;
 102         struct ib_cq           *cq;
 103 };
 104
 105 struct mlx4_ib_cq_buf {
 106         struct mlx4_buf         buf;
 107         struct mlx4_mtt         mtt;
 108         int                     entry_size;
 109 };
 110
 111 struct mlx4_ib_cq_resize {
 112         struct mlx4_ib_cq_buf   buf;
 113         int                     cqe;
 114 };
 115
 116 struct mlx4_ib_cq {
 117         struct ib_cq            ibcq;
 118         struct mlx4_cq          mcq;
 119         struct mlx4_ib_cq_buf   buf;
 120         struct mlx4_ib_cq_resize *resize_buf;
 121         struct mlx4_db          db;
 122         spinlock_t              lock;
 123         struct mutex            resize_mutex;
 124         struct ib_umem         *umem;
 125         struct ib_umem         *resize_umem;
 126         int                     create_flags;
 127         /* List of qps that it serves.*/
 128         struct list_head                send_qp_list;
 129         struct list_head                recv_qp_list;
 130 };
 131
 132 #define MLX4_MR_PAGES_ALIGN 0x40
 133
 134 struct mlx4_ib_mr {
 135         struct ib_mr            ibmr;
 136         __be64                  *pages;
 137         dma_addr_t              page_map;
 138         u32                     npages;
 139         u32                     max_pages;
 140         struct mlx4_mr          mmr;
 141         struct ib_umem         *umem;
 142         void                    *pages_alloc;
 143 };
 144
 145 struct mlx4_ib_mw {
 146         struct ib_mw            ibmw;
 147         struct mlx4_mw          mmw;
 148 };
 149
 150 struct mlx4_ib_fast_reg_page_list {
 151         struct ib_fast_reg_page_list    ibfrpl;
 152         __be64                         *mapped_page_list;
 153         dma_addr_t                      map;
 154 };
 155
 156 struct mlx4_ib_fmr {
 157         struct ib_fmr           ibfmr;
 158         struct mlx4_fmr         mfmr;
 159 };
 160
 161 #define MAX_REGS_PER_FLOW 2
 162
 163 struct mlx4_flow_reg_id {
 164         u64 id;
 165         u64 mirror;
 166 };
 167
 168 struct mlx4_ib_flow {
 169         struct ib_flow ibflow;
 170         /* translating DMFS verbs sniffer rule to FW API requires two reg IDs */
 171         struct mlx4_flow_reg_id reg_id[MAX_REGS_PER_FLOW];
 172 };
 173
 174 struct mlx4_ib_wq {
 175         u64                    *wrid;
 176         spinlock_t              lock;
 177         int                     wqe_cnt;
 178         int                     max_post;
 179         int                     max_gs;
 180         int                     offset;
 181         int                     wqe_shift;
 182         unsigned                head;
 183         unsigned                tail;
 184 };
 185
 186 enum mlx4_ib_qp_flags {
 187         MLX4_IB_QP_LSO = IB_QP_CREATE_IPOIB_UD_LSO,
 188         MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK = IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK,
 189         MLX4_IB_QP_NETIF = IB_QP_CREATE_NETIF_QP,
 190         MLX4_IB_QP_CREATE_USE_GFP_NOIO = IB_QP_CREATE_USE_GFP_NOIO,
 191         MLX4_IB_SRIOV_TUNNEL_QP = 1 << 30,
 192         MLX4_IB_SRIOV_SQP = 1 << 31,
 193 };
 194
 195 struct mlx4_ib_gid_entry {
 196         struct list_head        list;
 197         union ib_gid            gid;
 198         int                     added;
 199         u8                      port;
 200 };
 201
 202 enum mlx4_ib_qp_type {
 203         /*
 204          * IB_QPT_SMI and IB_QPT_GSI have to be the first two entries
 205          * here (and in that order) since the MAD layer uses them as
 206          * indices into a 2-entry table.
 207          */
 208         MLX4_IB_QPT_SMI = IB_QPT_SMI,
 209         MLX4_IB_QPT_GSI = IB_QPT_GSI,
 210
 211         MLX4_IB_QPT_RC = IB_QPT_RC,
 212         MLX4_IB_QPT_UC = IB_QPT_UC,
 213         MLX4_IB_QPT_UD = IB_QPT_UD,
 214         MLX4_IB_QPT_RAW_IPV6 = IB_QPT_RAW_IPV6,
 215         MLX4_IB_QPT_RAW_ETHERTYPE = IB_QPT_RAW_ETHERTYPE,
 216         MLX4_IB_QPT_RAW_PACKET = IB_QPT_RAW_PACKET,
 217         MLX4_IB_QPT_XRC_INI = IB_QPT_XRC_INI,
 218         MLX4_IB_QPT_XRC_TGT = IB_QPT_XRC_TGT,
 219
 220         MLX4_IB_QPT_PROXY_SMI_OWNER     = 1 << 16,
 221         MLX4_IB_QPT_PROXY_SMI           = 1 << 17,
 222         MLX4_IB_QPT_PROXY_GSI           = 1 << 18,
 223         MLX4_IB_QPT_TUN_SMI_OWNER       = 1 << 19,
 224         MLX4_IB_QPT_TUN_SMI             = 1 << 20,
 225         MLX4_IB_QPT_TUN_GSI             = 1 << 21,
 226 };
 227
 228 #define MLX4_IB_QPT_ANY_SRIOV   (MLX4_IB_QPT_PROXY_SMI_OWNER | \
 229         MLX4_IB_QPT_PROXY_SMI | MLX4_IB_QPT_PROXY_GSI | MLX4_IB_QPT_TUN_SMI_OWNER | \
 230         MLX4_IB_QPT_TUN_SMI | MLX4_IB_QPT_TUN_GSI)
 231
 232 enum mlx4_ib_mad_ifc_flags {
 233         MLX4_MAD_IFC_IGNORE_MKEY        = 1,
 234         MLX4_MAD_IFC_IGNORE_BKEY        = 2,
 235         MLX4_MAD_IFC_IGNORE_KEYS        = (MLX4_MAD_IFC_IGNORE_MKEY |
 236                                            MLX4_MAD_IFC_IGNORE_BKEY),
 237         MLX4_MAD_IFC_NET_VIEW           = 4,
 238 };
 239
 240 enum {
 241         MLX4_NUM_TUNNEL_BUFS            = 256,
 242 };
 243
 244 struct mlx4_ib_tunnel_header {
 245         struct mlx4_av av;
 246         __be32 remote_qpn;
 247         __be32 qkey;
 248         __be16 vlan;
 249         u8 mac[6];
 250         __be16 pkey_index;
 251         u8 reserved[6];
 252 };
 253
 254 struct mlx4_ib_buf {
 255         void *addr;
 256         dma_addr_t map;
 257 };
 258
 259 struct mlx4_rcv_tunnel_hdr {
 260         __be32 flags_src_qp; /* flags[6:5] is defined for VLANs:
 261                               * 0x0 - no vlan was in the packet
 262                               * 0x01 - C-VLAN was in the packet */
 263         u8 g_ml_path; /* gid bit stands for ipv6/4 header in RoCE */
 264         u8 reserved;
 265         __be16 pkey_index;
 266         __be16 sl_vid;
 267         __be16 slid_mac_47_32;
 268         __be32 mac_31_0;
 269 };
 270
 271 struct mlx4_ib_proxy_sqp_hdr {
 272         struct ib_grh grh;
 273         struct mlx4_rcv_tunnel_hdr tun;
 274 }  __packed;
 275
 276 struct mlx4_roce_smac_vlan_info {
 277         u64 smac;
 278         int smac_index;
 279         int smac_port;
 280         u64 candidate_smac;
 281         int candidate_smac_index;
 282         int candidate_smac_port;
 283         u16 vid;
 284         int vlan_index;
 285         int vlan_port;
 286         u16 candidate_vid;
 287         int candidate_vlan_index;
 288         int candidate_vlan_port;
 289         int update_vid;
 290 };
 291
 292 struct mlx4_ib_qp {
 293         struct ib_qp            ibqp;
 294         struct mlx4_qp          mqp;
 295         struct mlx4_buf         buf;
 296
 297         struct mlx4_db          db;
 298         struct mlx4_ib_wq       rq;
 299
 300         u32                     doorbell_qpn;
 301         __be32                  sq_signal_bits;
 302         unsigned                sq_next_wqe;
 303         int                     sq_max_wqes_per_wr;
 304         int                     sq_spare_wqes;
 305         struct mlx4_ib_wq       sq;
 306
 307         enum mlx4_ib_qp_type    mlx4_ib_qp_type;
 308         struct ib_umem         *umem;
 309         struct mlx4_mtt         mtt;
 310         int                     buf_size;
 311         struct mutex            mutex;
 312         u16                     xrcdn;
 313         u32                     flags;
 314         u8                      port;
 315         u8                      alt_port;
 316         u8                      atomic_rd_en;
 317         u8                      resp_depth;
 318         u8                      sq_no_prefetch;
 319         u8                      state;
 320         int                     mlx_type;
 321         struct list_head        gid_list;
 322         struct list_head        steering_rules;
 323         struct mlx4_ib_buf      *sqp_proxy_rcv;
 324         struct mlx4_roce_smac_vlan_info pri;
 325         struct mlx4_roce_smac_vlan_info alt;
 326         u64                     reg_id;
 327         struct list_head        qps_list;
 328         struct list_head        cq_recv_list;
 329         struct list_head        cq_send_list;
 330         struct counter_index    *counter_index;
 331 };
 332
 333 struct mlx4_ib_srq {
 334         struct ib_srq           ibsrq;
 335         struct mlx4_srq         msrq;
 336         struct mlx4_buf         buf;
 337         struct mlx4_db          db;
 338         u64                    *wrid;
 339         spinlock_t              lock;
 340         int                     head;
 341         int                     tail;
 342         u16                     wqe_ctr;
 343         struct ib_umem         *umem;
 344         struct mlx4_mtt         mtt;
 345         struct mutex            mutex;
 346 };
 347
 348 struct mlx4_ib_ah {
 349         struct ib_ah            ibah;
 350         union mlx4_ext_av       av;
 351 };
 352
 353 /****************************************/
 354 /* alias guid support */
 355 /****************************************/
 356 #define NUM_PORT_ALIAS_GUID             2
 357 #define NUM_ALIAS_GUID_IN_REC           8
 358 #define NUM_ALIAS_GUID_REC_IN_PORT      16
 359 #define GUID_REC_SIZE                   8
 360 #define NUM_ALIAS_GUID_PER_PORT         128
 361 #define MLX4_NOT_SET_GUID               (0x00LL)
 362 #define MLX4_GUID_FOR_DELETE_VAL        (~(0x00LL))
 363
 364 enum mlx4_guid_alias_rec_status {
 365         MLX4_GUID_INFO_STATUS_IDLE,
 366         MLX4_GUID_INFO_STATUS_SET,
 367 };
 368
 369 #define GUID_STATE_NEED_PORT_INIT 0x01
 370
 371 enum mlx4_guid_alias_rec_method {
 372         MLX4_GUID_INFO_RECORD_SET       = IB_MGMT_METHOD_SET,
 373         MLX4_GUID_INFO_RECORD_DELETE    = IB_SA_METHOD_DELETE,
 374 };
 375
 376 struct mlx4_sriov_alias_guid_info_rec_det {
 377         u8 all_recs[GUID_REC_SIZE * NUM_ALIAS_GUID_IN_REC];
 378         ib_sa_comp_mask guid_indexes; /*indicates what from the 8 records are valid*/
 379         enum mlx4_guid_alias_rec_status status; /*indicates the administraively status of the record.*/
 380         unsigned int guids_retry_schedule[NUM_ALIAS_GUID_IN_REC];
 381         u64 time_to_run;
 382 };
 383
 384 struct mlx4_sriov_alias_guid_port_rec_det {
 385         struct mlx4_sriov_alias_guid_info_rec_det all_rec_per_port[NUM_ALIAS_GUID_REC_IN_PORT];
 386         struct workqueue_struct *wq;
 387         struct delayed_work alias_guid_work;
 388         u8 port;
 389         u32 state_flags;
 390         struct mlx4_sriov_alias_guid *parent;
 391         struct list_head cb_list;
 392 };
 393
 394 struct mlx4_sriov_alias_guid {
 395         struct mlx4_sriov_alias_guid_port_rec_det ports_guid[MLX4_MAX_PORTS];
 396         spinlock_t ag_work_lock;
 397         struct ib_sa_client *sa_client;
 398 };
 399
 400 struct mlx4_ib_demux_work {
 401         struct work_struct      work;
 402         struct mlx4_ib_dev     *dev;
 403         int                     slave;
 404         int                     do_init;
 405         u8                      port;
 406
 407 };
 408
 409 struct mlx4_ib_tun_tx_buf {
 410         struct mlx4_ib_buf buf;
 411         struct ib_ah *ah;
 412 };
 413
 414 struct mlx4_ib_demux_pv_qp {
 415         struct ib_qp *qp;
 416         enum ib_qp_type proxy_qpt;
 417         struct mlx4_ib_buf *ring;
 418         struct mlx4_ib_tun_tx_buf *tx_ring;
 419         spinlock_t tx_lock;
 420         unsigned tx_ix_head;
 421         unsigned tx_ix_tail;
 422 };
 423
 424 enum mlx4_ib_demux_pv_state {
 425         DEMUX_PV_STATE_DOWN,
 426         DEMUX_PV_STATE_STARTING,
 427         DEMUX_PV_STATE_ACTIVE,
 428         DEMUX_PV_STATE_DOWNING,
 429 };
 430
 431 struct mlx4_ib_demux_pv_ctx {
 432         int port;
 433         int slave;
 434         enum mlx4_ib_demux_pv_state state;
 435         int has_smi;
 436         struct ib_device *ib_dev;
 437         struct ib_cq *cq;
 438         struct ib_pd *pd;
 439         struct work_struct work;
 440         struct workqueue_struct *wq;
 441         struct mlx4_ib_demux_pv_qp qp[2];
 442 };
 443
 444 struct mlx4_ib_demux_ctx {
 445         struct ib_device *ib_dev;
 446         int port;
 447         struct workqueue_struct *wq;
 448         struct workqueue_struct *ud_wq;
 449         spinlock_t ud_lock;
 450         __be64 subnet_prefix;
 451         __be64 guid_cache[128];
 452         struct mlx4_ib_dev *dev;
 453         /* the following lock protects both mcg_table and mcg_mgid0_list */
 454         struct mutex            mcg_table_lock;
 455         struct rb_root          mcg_table;
 456         struct list_head        mcg_mgid0_list;
 457         struct workqueue_struct *mcg_wq;
 458         struct mlx4_ib_demux_pv_ctx **tun;
 459         atomic_t tid;
 460         int    flushing; /* flushing the work queue */
 461 };
 462
 463 struct mlx4_ib_sriov {
 464         struct mlx4_ib_demux_ctx demux[MLX4_MAX_PORTS];
 465         struct mlx4_ib_demux_pv_ctx *sqps[MLX4_MAX_PORTS];
 466         /* when using this spinlock you should use "irq" because
 467          * it may be called from interrupt context.*/
 468         spinlock_t going_down_lock;
 469         int is_going_down;
 470
 471         struct mlx4_sriov_alias_guid alias_guid;
 472
 473         /* CM paravirtualization fields */
 474         struct list_head cm_list;
 475         spinlock_t id_map_lock;
 476         struct rb_root sl_id_map;
 477         struct idr pv_id_table;
 478 };
 479
 480 struct gid_cache_context {
 481         int real_index;
 482         int refcount;
 483 };
 484
 485 struct gid_entry {
 486         union ib_gid    gid;
 487         struct gid_cache_context *ctx;
 488 };
 489
 490 struct mlx4_port_gid_table {
 491         struct gid_entry gids[MLX4_MAX_PORT_GIDS];
 492 };
 493
 494 struct mlx4_ib_iboe {
 495         spinlock_t              lock;
 496         struct net_device      *netdevs[MLX4_MAX_PORTS];
 497         atomic64_t              mac[MLX4_MAX_PORTS];
 498         struct notifier_block   nb;
 499         struct mlx4_port_gid_table gids[MLX4_MAX_PORTS];
 500 };
 501
 502 struct pkey_mgt {
 503         u8                      virt2phys_pkey[MLX4_MFUNC_MAX][MLX4_MAX_PORTS][MLX4_MAX_PORT_PKEYS];
 504         u16                     phys_pkey_cache[MLX4_MAX_PORTS][MLX4_MAX_PORT_PKEYS];
 505         struct list_head        pkey_port_list[MLX4_MFUNC_MAX];
 506         struct kobject         *device_parent[MLX4_MFUNC_MAX];
 507 };
 508
 509 struct mlx4_ib_iov_sysfs_attr {
 510         void *ctx;
 511         struct kobject *kobj;
 512         unsigned long data;
 513         u32 entry_num;
 514         char name[15];
 515         struct device_attribute dentry;
 516         struct device *dev;
 517 };
 518
 519 struct mlx4_ib_iov_sysfs_attr_ar {
 520         struct mlx4_ib_iov_sysfs_attr dentries[3 * NUM_ALIAS_GUID_PER_PORT + 1];
 521 };
 522
 523 struct mlx4_ib_iov_port {
 524         char name[100];
 525         u8 num;
 526         struct mlx4_ib_dev *dev;
 527         struct list_head list;
 528         struct mlx4_ib_iov_sysfs_attr_ar *dentr_ar;
 529         struct ib_port_attr attr;
 530         struct kobject  *cur_port;
 531         struct kobject  *admin_alias_parent;
 532         struct kobject  *gids_parent;
 533         struct kobject  *pkeys_parent;
 534         struct kobject  *mcgs_parent;
 535         struct mlx4_ib_iov_sysfs_attr mcg_dentry;
 536 };
 537
 538 struct counter_index {
 539         struct  list_head       list;
 540         u32             index;
 541         u8              allocated;
 542 };
 543
 544 struct mlx4_ib_counters {
 545         struct list_head        counters_list;
 546         struct mutex            mutex; /* mutex for accessing counters list */
 547         u32                     default_counter;
 548 };
 549
 550 struct mlx4_ib_dev {
 551         struct ib_device        ib_dev;
 552         struct mlx4_dev        *dev;
 553         int                     num_ports;
 554         void __iomem           *uar_map;
 555
 556         struct mlx4_uar         priv_uar;
 557         u32                     priv_pdn;
 558         MLX4_DECLARE_DOORBELL_LOCK(uar_lock);
 559
 560         struct ib_mad_agent    *send_agent[MLX4_MAX_PORTS][2];
 561         struct ib_ah           *sm_ah[MLX4_MAX_PORTS];
 562         spinlock_t              sm_lock;
 563         struct mlx4_ib_sriov    sriov;
 564
 565         struct mutex            cap_mask_mutex;
 566         bool                    ib_active;
 567         struct mlx4_ib_iboe     iboe;
 568         struct mlx4_ib_counters counters_table[MLX4_MAX_PORTS];
 569         int                    *eq_table;
 570         struct kobject         *iov_parent;
 571         struct kobject         *ports_parent;
 572         struct kobject         *dev_ports_parent[MLX4_MFUNC_MAX];
 573         struct mlx4_ib_iov_port iov_ports[MLX4_MAX_PORTS];
 574         struct pkey_mgt         pkeys;
 575         unsigned long *ib_uc_qpns_bitmap;
 576         int steer_qpn_count;
 577         int steer_qpn_base;
 578         int steering_support;
 579         struct mlx4_ib_qp      *qp1_proxy[MLX4_MAX_PORTS];
 580         /* lock when destroying qp1_proxy and getting netdev events */
 581         struct mutex            qp1_proxy_lock[MLX4_MAX_PORTS];
 582         u8                      bond_next_port;
 583         /* protect resources needed as part of reset flow */
 584         spinlock_t              reset_flow_resource_lock;
 585         struct list_head                qp_list;
 586 };
 587
 588 struct ib_event_work {
 589         struct work_struct      work;
 590         struct mlx4_ib_dev      *ib_dev;
 591         struct mlx4_eqe         ib_eqe;
 592 };
 593
 594 struct mlx4_ib_qp_tunnel_init_attr {
 595         struct ib_qp_init_attr init_attr;
 596         int slave;
 597         enum ib_qp_type proxy_qp_type;
 598         u8 port;
 599 };
 600
 601 struct mlx4_uverbs_ex_query_device {
 602         __u32 comp_mask;
 603         __u32 reserved;
 604 };
 605
 606 enum query_device_resp_mask {
 607         QUERY_DEVICE_RESP_MASK_TIMESTAMP = 1UL << 0,
 608 };
 609
 610 struct mlx4_uverbs_ex_query_device_resp {
 611         __u32 comp_mask;
 612         __u32 response_length;
 613         __u64 hca_core_clock_offset;
 614 };
 615
 616 static inline struct mlx4_ib_dev *to_mdev(struct ib_device *ibdev)
 617 {
 618         return container_of(ibdev, struct mlx4_ib_dev, ib_dev);
 619 }
 620
 621 static inline struct mlx4_ib_ucontext *to_mucontext(struct ib_ucontext *ibucontext)
 622 {
 623         return container_of(ibucontext, struct mlx4_ib_ucontext, ibucontext);
 624 }
 625
 626 static inline struct mlx4_ib_pd *to_mpd(struct ib_pd *ibpd)
 627 {
 628         return container_of(ibpd, struct mlx4_ib_pd, ibpd);
 629 }
 630
 631 static inline struct mlx4_ib_xrcd *to_mxrcd(struct ib_xrcd *ibxrcd)
 632 {
 633         return container_of(ibxrcd, struct mlx4_ib_xrcd, ibxrcd);
 634 }
 635
 636 static inline struct mlx4_ib_cq *to_mcq(struct ib_cq *ibcq)
 637 {
 638         return container_of(ibcq, struct mlx4_ib_cq, ibcq);
 639 }
 640
 641 static inline struct mlx4_ib_cq *to_mibcq(struct mlx4_cq *mcq)
 642 {
 643         return container_of(mcq, struct mlx4_ib_cq, mcq);
 644 }
 645
 646 static inline struct mlx4_ib_mr *to_mmr(struct ib_mr *ibmr)
 647 {
 648         return container_of(ibmr, struct mlx4_ib_mr, ibmr);
 649 }
 650
 651 static inline struct mlx4_ib_mw *to_mmw(struct ib_mw *ibmw)
 652 {
 653         return container_of(ibmw, struct mlx4_ib_mw, ibmw);
 654 }
 655
 656 static inline struct mlx4_ib_fast_reg_page_list *to_mfrpl(struct ib_fast_reg_page_list *ibfrpl)
 657 {
 658         return container_of(ibfrpl, struct mlx4_ib_fast_reg_page_list, ibfrpl);
 659 }
 660
 661 static inline struct mlx4_ib_fmr *to_mfmr(struct ib_fmr *ibfmr)
 662 {
 663         return container_of(ibfmr, struct mlx4_ib_fmr, ibfmr);
 664 }
 665
 666 static inline struct mlx4_ib_flow *to_mflow(struct ib_flow *ibflow)
 667 {
 668         return container_of(ibflow, struct mlx4_ib_flow, ibflow);
 669 }
 670
 671 static inline struct mlx4_ib_qp *to_mqp(struct ib_qp *ibqp)
 672 {
 673         return container_of(ibqp, struct mlx4_ib_qp, ibqp);
 674 }
 675
 676 static inline struct mlx4_ib_qp *to_mibqp(struct mlx4_qp *mqp)
 677 {
 678         return container_of(mqp, struct mlx4_ib_qp, mqp);
 679 }
 680
 681 static inline struct mlx4_ib_srq *to_msrq(struct ib_srq *ibsrq)
 682 {
 683         return container_of(ibsrq, struct mlx4_ib_srq, ibsrq);
 684 }
 685
 686 static inline struct mlx4_ib_srq *to_mibsrq(struct mlx4_srq *msrq)
 687 {
 688         return container_of(msrq, struct mlx4_ib_srq, msrq);
 689 }
 690
 691 static inline struct mlx4_ib_ah *to_mah(struct ib_ah *ibah)
 692 {
 693         return container_of(ibah, struct mlx4_ib_ah, ibah);
 694 }
 695
 696 static inline u8 mlx4_ib_bond_next_port(struct mlx4_ib_dev *dev)
 697 {
 698         dev->bond_next_port = (dev->bond_next_port + 1) % dev->num_ports;
 699
 700         return dev->bond_next_port + 1;
 701 }
 702
 703 int mlx4_ib_init_sriov(struct mlx4_ib_dev *dev);
 704 void mlx4_ib_close_sriov(struct mlx4_ib_dev *dev);
 705
 706 int mlx4_ib_db_map_user(struct mlx4_ib_ucontext *context, unsigned long virt,
 707                         struct mlx4_db *db);
 708 void mlx4_ib_db_unmap_user(struct mlx4_ib_ucontext *context, struct mlx4_db *db);
 709
 710 struct ib_mr *mlx4_ib_get_dma_mr(struct ib_pd *pd, int acc);
 711 int mlx4_ib_umem_write_mtt(struct mlx4_ib_dev *dev, struct mlx4_mtt *mtt,
 712                            struct ib_umem *umem);
 713 struct ib_mr *mlx4_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
 714                                   u64 virt_addr, int access_flags,
 715                                   struct ib_udata *udata);
 716 int mlx4_ib_dereg_mr(struct ib_mr *mr);
 717 struct ib_mw *mlx4_ib_alloc_mw(struct ib_pd *pd, enum ib_mw_type type);
 718 int mlx4_ib_bind_mw(struct ib_qp *qp, struct ib_mw *mw,
 719                     struct ib_mw_bind *mw_bind);
 720 int mlx4_ib_dealloc_mw(struct ib_mw *mw);
 721 struct ib_mr *mlx4_ib_alloc_mr(struct ib_pd *pd,
 722                                enum ib_mr_type mr_type,
 723                                u32 max_num_sg);
 724 int mlx4_ib_map_mr_sg(struct ib_mr *ibmr,
 725                       struct scatterlist *sg,
 726                       int sg_nents);
 727 struct ib_fast_reg_page_list *mlx4_ib_alloc_fast_reg_page_list(struct ib_device *ibdev,
 728                                                                int page_list_len);
 729 void mlx4_ib_free_fast_reg_page_list(struct ib_fast_reg_page_list *page_list);
 730
 731 int mlx4_ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period);
 732 int mlx4_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata);
 733 struct ib_cq *mlx4_ib_create_cq(struct ib_device *ibdev,
 734                                 const struct ib_cq_init_attr *attr,
 735                                 struct ib_ucontext *context,
 736                                 struct ib_udata *udata);
 737 int mlx4_ib_destroy_cq(struct ib_cq *cq);
 738 int mlx4_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc);
 739 int mlx4_ib_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags);
 740 void __mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq);
 741 void mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq);
 742
 743 struct ib_ah *mlx4_ib_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr);
 744 int mlx4_ib_query_ah(struct ib_ah *ibah, struct ib_ah_attr *ah_attr);
 745 int mlx4_ib_destroy_ah(struct ib_ah *ah);
 746
 747 struct ib_srq *mlx4_ib_create_srq(struct ib_pd *pd,
 748                                   struct ib_srq_init_attr *init_attr,
 749                                   struct ib_udata *udata);
 750 int mlx4_ib_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
 751                        enum ib_srq_attr_mask attr_mask, struct ib_udata *udata);
 752 int mlx4_ib_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr);
 753 int mlx4_ib_destroy_srq(struct ib_srq *srq);
 754 void mlx4_ib_free_srq_wqe(struct mlx4_ib_srq *srq, int wqe_index);
 755 int mlx4_ib_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr,
 756                           struct ib_recv_wr **bad_wr);
 757
 758 struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
 759                                 struct ib_qp_init_attr *init_attr,
 760                                 struct ib_udata *udata);
 761 int mlx4_ib_destroy_qp(struct ib_qp *qp);
 762 int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
 763                       int attr_mask, struct ib_udata *udata);
 764 int mlx4_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask,
 765                      struct ib_qp_init_attr *qp_init_attr);
 766 int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
 767                       struct ib_send_wr **bad_wr);
 768 int mlx4_ib_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr,
 769                       struct ib_recv_wr **bad_wr);
 770
 771 int mlx4_MAD_IFC(struct mlx4_ib_dev *dev, int mad_ifc_flags,
 772                  int port, const struct ib_wc *in_wc, const struct ib_grh *in_grh,
 773                  const void *in_mad, void *response_mad);
 774 int mlx4_ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
 775                         const struct ib_wc *in_wc, const struct ib_grh *in_grh,
 776                         const struct ib_mad_hdr *in, size_t in_mad_size,
 777                         struct ib_mad_hdr *out, size_t *out_mad_size,
 778                         u16 *out_mad_pkey_index);
 779 int mlx4_ib_mad_init(struct mlx4_ib_dev *dev);
 780 void mlx4_ib_mad_cleanup(struct mlx4_ib_dev *dev);
 781
 782 struct ib_fmr *mlx4_ib_fmr_alloc(struct ib_pd *pd, int mr_access_flags,
 783                                   struct ib_fmr_attr *fmr_attr);
 784 int mlx4_ib_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list, int npages,
 785                          u64 iova);
 786 int mlx4_ib_unmap_fmr(struct list_head *fmr_list);
 787 int mlx4_ib_fmr_dealloc(struct ib_fmr *fmr);
 788 int __mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
 789                          struct ib_port_attr *props, int netw_view);
 790 int __mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
 791                          u16 *pkey, int netw_view);
 792
 793 int __mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
 794                         union ib_gid *gid, int netw_view);
 795
 796 static inline bool mlx4_ib_ah_grh_present(struct mlx4_ib_ah *ah)
 797 {
 798         u8 port = be32_to_cpu(ah->av.ib.port_pd) >> 24 & 3;
 799
 800         if (rdma_port_get_link_layer(ah->ibah.device, port) == IB_LINK_LAYER_ETHERNET)
 801                 return true;
 802
 803         return !!(ah->av.ib.g_slid & 0x80);
 804 }
 805
 806 int mlx4_ib_mcg_port_init(struct mlx4_ib_demux_ctx *ctx);
 807 void mlx4_ib_mcg_port_cleanup(struct mlx4_ib_demux_ctx *ctx, int destroy_wq);
 808 void clean_vf_mcast(struct mlx4_ib_demux_ctx *ctx, int slave);
 809 int mlx4_ib_mcg_init(void);
 810 void mlx4_ib_mcg_destroy(void);
 811
 812 int mlx4_ib_find_real_gid(struct ib_device *ibdev, u8 port, __be64 guid);
 813
 814 int mlx4_ib_mcg_multiplex_handler(struct ib_device *ibdev, int port, int slave,
 815                                   struct ib_sa_mad *sa_mad);
 816 int mlx4_ib_mcg_demux_handler(struct ib_device *ibdev, int port, int slave,
 817                               struct ib_sa_mad *mad);
 818
 819 int mlx4_ib_add_mc(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
 820                    union ib_gid *gid);
 821
 822 void mlx4_ib_dispatch_event(struct mlx4_ib_dev *dev, u8 port_num,
 823                             enum ib_event_type type);
 824
 825 void mlx4_ib_tunnels_update_work(struct work_struct *work);
 826
 827 int mlx4_ib_send_to_slave(struct mlx4_ib_dev *dev, int slave, u8 port,
 828                           enum ib_qp_type qpt, struct ib_wc *wc,
 829                           struct ib_grh *grh, struct ib_mad *mad);
 830
 831 int mlx4_ib_send_to_wire(struct mlx4_ib_dev *dev, int slave, u8 port,
 832                          enum ib_qp_type dest_qpt, u16 pkey_index, u32 remote_qpn,
 833                          u32 qkey, struct ib_ah_attr *attr, u8 *s_mac,
 834                          u16 vlan_id, struct ib_mad *mad);
 835
 836 __be64 mlx4_ib_get_new_demux_tid(struct mlx4_ib_demux_ctx *ctx);
 837
 838 int mlx4_ib_demux_cm_handler(struct ib_device *ibdev, int port, int *slave,
 839                 struct ib_mad *mad);
 840
 841 int mlx4_ib_multiplex_cm_handler(struct ib_device *ibdev, int port, int slave_id,
 842                 struct ib_mad *mad);
 843
 844 void mlx4_ib_cm_paravirt_init(struct mlx4_ib_dev *dev);
 845 void mlx4_ib_cm_paravirt_clean(struct mlx4_ib_dev *dev, int slave_id);
 846
 847 /* alias guid support */
 848 void mlx4_ib_init_alias_guid_work(struct mlx4_ib_dev *dev, int port);
 849 int mlx4_ib_init_alias_guid_service(struct mlx4_ib_dev *dev);
 850 void mlx4_ib_destroy_alias_guid_service(struct mlx4_ib_dev *dev);
 851 void mlx4_ib_invalidate_all_guid_record(struct mlx4_ib_dev *dev, int port);
 852
 853 void mlx4_ib_notify_slaves_on_guid_change(struct mlx4_ib_dev *dev,
 854                                           int block_num,
 855                                           u8 port_num, u8 *p_data);
 856
 857 void mlx4_ib_update_cache_on_guid_change(struct mlx4_ib_dev *dev,
 858                                          int block_num, u8 port_num,
 859                                          u8 *p_data);
 860
 861 int add_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num,
 862                             struct attribute *attr);
 863 void del_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num,
 864                              struct attribute *attr);
 865 ib_sa_comp_mask mlx4_ib_get_aguid_comp_mask_from_ix(int index);
 866 void mlx4_ib_slave_alias_guid_event(struct mlx4_ib_dev *dev, int slave,
 867                                     int port, int slave_init);
 868
 869 int mlx4_ib_device_register_sysfs(struct mlx4_ib_dev *device) ;
 870
 871 void mlx4_ib_device_unregister_sysfs(struct mlx4_ib_dev *device);
 872
 873 __be64 mlx4_ib_gen_node_guid(void);
 874
 875 int mlx4_ib_steer_qp_alloc(struct mlx4_ib_dev *dev, int count, int *qpn);
 876 void mlx4_ib_steer_qp_free(struct mlx4_ib_dev *dev, u32 qpn, int count);
 877 int mlx4_ib_steer_qp_reg(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
 878                          int is_attach);
 879 int mlx4_ib_rereg_user_mr(struct ib_mr *mr, int flags,
 880                           u64 start, u64 length, u64 virt_addr,
 881                           int mr_access_flags, struct ib_pd *pd,
 882                           struct ib_udata *udata);
 883 int mlx4_ib_gid_index_to_real_index(struct mlx4_ib_dev *ibdev,
 884                                     u8 port_num, int index);
 885
 886 #endif /* MLX4_IB_H */