/*
 * This file contains definitions used in OFED defined user/kernel
 * interfaces. These are imported from the OFED header ib_verbs.h. Oracle
 * elects to have and use the contents of ib_verbs.h under and governed
 * by the OpenIB.org BSD license (see below for full license text). However,
 * the following notice accompanied the original version of this file:
 */

/*
 * Copyright (c) 2004 Mellanox Technologies Ltd.  All rights reserved.
 * Copyright (c) 2004 Infinicon Corporation.  All rights reserved.
 * Copyright (c) 2004 Intel Corporation.  All rights reserved.
 * Copyright (c) 2004 Topspin Corporation.  All rights reserved.
 * Copyright (c) 2004 Voltaire Corporation.  All rights reserved.
 * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
 * Copyright (c) 2005, 2006, 2007 Cisco Systems.  All rights reserved.
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the
 * OpenIB.org BSD license below:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *
 *      - Redistributions in binary form must reproduce the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer in the documentation and/or other materials
 *        provided with the distribution.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
#ifndef _SYS_IB_CLIENTS_OF_IB_VERBS_H
#define _SYS_IB_CLIENTS_OF_IB_VERBS_H

#ifdef __cplusplus
extern "C" {
#endif

#include <sys/atomic.h>
#include <sys/mutex.h>
#include <sys/ib/ibtl/ibvti.h>
#include <sys/ib/clients/of/ofa_solaris.h>
#include <sys/ib/clients/of/sol_ofs/sol_ofs_common.h>

typedef struct sol_ofs_client_s *ofs_client_p_t;

union ib_gid {
        uint8_t raw[16];
        struct {
                uint64_t        subnet_prefix;
                uint64_t        interface_id;
        } global;
};

enum rdma_node_type {
        /* IB values map to NodeInfo:NodeType. */
        RDMA_NODE_IB_CA         = 1,
        RDMA_NODE_IB_SWITCH,
        RDMA_NODE_IB_ROUTER,
        RDMA_NODE_RNIC
};

enum rdma_transport_type {
        RDMA_TRANSPORT_IB,
        RDMA_TRANSPORT_IWARP
};

#define __attribute_const__             __attribute__((__const__))
enum rdma_transport_type
rdma_node_get_transport(enum rdma_node_type node_type) __attribute_const__;

enum ib_device_cap_flags {
        IB_DEVICE_RESIZE_MAX_WR         = 1,
        IB_DEVICE_BAD_PKEY_CNTR         = (1<<1),
        IB_DEVICE_BAD_QKEY_CNTR         = (1<<2),
        IB_DEVICE_RAW_MULTI             = (1<<3),
        IB_DEVICE_AUTO_PATH_MIG         = (1<<4),
        IB_DEVICE_CHANGE_PHY_PORT       = (1<<5),
        IB_DEVICE_UD_AV_PORT_ENFORCE    = (1<<6),
        IB_DEVICE_CURR_QP_STATE_MOD     = (1<<7),
        IB_DEVICE_SHUTDOWN_PORT         = (1<<8),
        IB_DEVICE_INIT_TYPE             = (1<<9),
        IB_DEVICE_PORT_ACTIVE_EVENT     = (1<<10),
        IB_DEVICE_SYS_IMAGE_GUID        = (1<<11),
        IB_DEVICE_RC_RNR_NAK_GEN        = (1<<12),
        IB_DEVICE_SRQ_RESIZE            = (1<<13),
        IB_DEVICE_N_NOTIFY_CQ           = (1<<14),
        IB_DEVICE_ZERO_STAG             = (1<<15),
        IB_DEVICE_SEND_W_INV            = (1<<16),
        IB_DEVICE_MEM_WINDOW            = (1<<17)
};

enum ib_atomic_cap {
        IB_ATOMIC_NONE,
        IB_ATOMIC_HCA,
        IB_ATOMIC_GLOB
};

struct ib_device_attr {
        uint64_t                fw_ver;
        uint64_t                sys_image_guid;
        uint64_t                max_mr_size;
        uint64_t                page_size_cap;
        uint32_t                vendor_id;
        uint32_t                vendor_part_id;
        uint32_t                hw_ver;
        int                     max_qp;
        int                     max_qp_wr;
        int                     device_cap_flags;
        int                     max_sge;
        int                     max_sge_rd;
        int                     max_cq;
        int                     max_cqe;
        int                     max_mr;
        int                     max_pd;
        int                     max_qp_rd_atom;
        int                     max_ee_rd_atom;
        int                     max_res_rd_atom;
        int                     max_qp_init_rd_atom;
        int                     max_ee_init_rd_atom;
        enum ib_atomic_cap      atomic_cap;
        int                     max_ee;
        int                     max_rdd;
        int                     max_mw;
        int                     max_raw_ipv6_qp;
        int                     max_raw_ethy_qp;
        int                     max_mcast_grp;
        int                     max_mcast_qp_attach;
        int                     max_total_mcast_qp_attach;
        int                     max_ah;
        int                     max_fmr;
        int                     max_map_per_fmr;
        int                     max_srq;
        int                     max_srq_wr;
        int                     max_srq_sge;
        uint16_t                max_pkeys;
        uint8_t                 local_ca_ack_delay;
};

enum ib_mtu {
        OFED_IB_MTU_256  = 1,
        OFED_IB_MTU_512  = 2,
        OFED_IB_MTU_1024 = 3,
        OFED_IB_MTU_2048 = 4,
        OFED_IB_MTU_4096 = 5
};

enum ib_port_state {
        IB_PORT_NOP             = 0,
        IB_PORT_DOWN            = 1,
        IB_PORT_INIT            = 2,
        IB_PORT_ARMED           = 3,
        IB_PORT_ACTIVE          = 4,
        IB_PORT_ACTIVE_DEFER    = 5
};

enum ib_port_cap_flags {
        IB_PORT_SM                              = 1 <<  1,
        IB_PORT_NOTICE_SUP                      = 1 <<  2,
        IB_PORT_TRAP_SUP                        = 1 <<  3,
        IB_PORT_OPT_IPD_SUP                     = 1 <<  4,
        IB_PORT_AUTO_MIGR_SUP                   = 1 <<  5,
        IB_PORT_SL_MAP_SUP                      = 1 <<  6,
        IB_PORT_MKEY_NVRAM                      = 1 <<  7,
        IB_PORT_PKEY_NVRAM                      = 1 <<  8,
        IB_PORT_LED_INFO_SUP                    = 1 <<  9,
        IB_PORT_SM_DISABLED                     = 1 << 10,
        IB_PORT_SYS_IMAGE_GUID_SUP              = 1 << 11,
        IB_PORT_PKEY_SW_EXT_PORT_TRAP_SUP       = 1 << 12,
        IB_PORT_CM_SUP                          = 1 << 16,
        IB_PORT_SNMP_TUNNEL_SUP                 = 1 << 17,
        IB_PORT_REINIT_SUP                      = 1 << 18,
        IB_PORT_DEVICE_MGMT_SUP                 = 1 << 19,
        IB_PORT_VENDOR_CLASS_SUP                = 1 << 20,
        IB_PORT_DR_NOTICE_SUP                   = 1 << 21,
        IB_PORT_CAP_MASK_NOTICE_SUP             = 1 << 22,
        IB_PORT_BOOT_MGMT_SUP                   = 1 << 23,
        IB_PORT_LINK_LATENCY_SUP                = 1 << 24,
        IB_PORT_CLIENT_REG_SUP                  = 1 << 25
};

enum ib_port_width {
        IB_WIDTH_1X     = 1,
        IB_WIDTH_4X     = 2,
        IB_WIDTH_8X     = 4,
        IB_WIDTH_12X    = 8
};

static inline int ib_width_enum_to_int(enum ib_port_width width)
{
        switch (width) {
                case IB_WIDTH_1X:  return  1;
                case IB_WIDTH_4X:  return  4;
                case IB_WIDTH_8X:  return  8;
                case IB_WIDTH_12X: return 12;
                default: return -1;
        }
}

struct ib_port_attr {
        enum ib_port_state      state;
        enum ib_mtu             max_mtu;
        enum ib_mtu             active_mtu;
        int                     gid_tbl_len;
        uint32_t                port_cap_flags;
        uint32_t                max_msg_sz;
        uint32_t                bad_pkey_cntr;
        uint32_t                qkey_viol_cntr;
        uint16_t                pkey_tbl_len;
        uint16_t                lid;
        uint16_t                sm_lid;
        uint8_t                 lmc;
        uint8_t                 max_vl_num;
        uint8_t                 sm_sl;
        uint8_t                 subnet_timeout;
        uint8_t                 init_type_reply;
        uint8_t                 active_width;
        uint8_t                 active_speed;
        uint8_t                 phys_state;
};

enum ib_device_modify_flags {
        IB_DEVICE_MODIFY_SYS_IMAGE_GUID = 1 << 0,
        IB_DEVICE_MODIFY_NODE_DESC      = 1 << 1
};

struct ib_device_modify {
        uint64_t        sys_image_guid;
        char    node_desc[64];
};

enum ib_port_modify_flags {
        IB_PORT_SHUTDOWN                = 1,
        IB_PORT_INIT_TYPE               = (1<<2),
        IB_PORT_RESET_QKEY_CNTR         = (1<<3)
};

struct ib_port_modify {
        uint32_t        set_port_cap_mask;
        uint32_t        clr_port_cap_mask;
        uint8_t init_type;
};

enum ib_event_type {
        IB_EVENT_CQ_ERR,
        IB_EVENT_QP_FATAL,
        IB_EVENT_QP_REQ_ERR,
        IB_EVENT_QP_ACCESS_ERR,
        IB_EVENT_COMM_EST,
        IB_EVENT_SQ_DRAINED,
        IB_EVENT_PATH_MIG,
        IB_EVENT_PATH_MIG_ERR,
        IB_EVENT_DEVICE_FATAL,
        IB_EVENT_PORT_ACTIVE,
        IB_EVENT_PORT_ERR,
        IB_EVENT_LID_CHANGE,
        IB_EVENT_PKEY_CHANGE,
        IB_EVENT_SM_CHANGE,
        IB_EVENT_SRQ_ERR,
        IB_EVENT_SRQ_LIMIT_REACHED,
        IB_EVENT_QP_LAST_WQE_REACHED,
        IB_EVENT_CLIENT_REREGISTER
};

struct ib_event {
        struct ib_device        *device;
        union {
                struct ib_cq    *cq;
                struct ib_qp    *qp;
                struct ib_srq   *srq;
                uint8_t         port_num;
        } element;
        enum ib_event_type      event;
};

struct ib_event_handler {
        struct ib_device        *device;
        void                    (*handler)(struct ib_event_handler *,
                                    struct ib_event *);
        llist_head_t    list;
};

struct ib_global_route {
        union ib_gid    dgid;
        uint32_t        flow_label;
        uint8_t         sgid_index;
        uint8_t         hop_limit;
        uint8_t         traffic_class;
};

enum ib_ah_flags {
        IB_AH_GRH       = 1
};

enum ib_rate {
        IB_RATE_PORT_CURRENT = 0,
        IB_RATE_2_5_GBPS = 2,
        IB_RATE_5_GBPS   = 5,
        IB_RATE_10_GBPS  = 3,
        IB_RATE_20_GBPS  = 6,
        IB_RATE_30_GBPS  = 4,
        IB_RATE_40_GBPS  = 7,
        IB_RATE_60_GBPS  = 8,
        IB_RATE_80_GBPS  = 9,
        IB_RATE_120_GBPS = 10
};

struct ib_ah_attr {
        struct ib_global_route  grh;
        uint16_t                dlid;
        uint8_t                 sl;
        uint8_t                 src_path_bits;
        uint8_t                 static_rate;
        uint8_t                 ah_flags;
        uint8_t                 port_num;
};

enum ib_wc_status {
        IB_WC_SUCCESS,
        IB_WC_LOC_LEN_ERR,
        IB_WC_LOC_QP_OP_ERR,
        IB_WC_LOC_EEC_OP_ERR,
        IB_WC_LOC_PROT_ERR,
        IB_WC_WR_FLUSH_ERR,
        IB_WC_MW_BIND_ERR,
        IB_WC_BAD_RESP_ERR,
        IB_WC_LOC_ACCESS_ERR,
        IB_WC_REM_INV_REQ_ERR,
        IB_WC_REM_ACCESS_ERR,
        IB_WC_REM_OP_ERR,
        IB_WC_RETRY_EXC_ERR,
        IB_WC_RNR_RETRY_EXC_ERR,
        IB_WC_LOC_RDD_VIOL_ERR,
        IB_WC_REM_INV_RD_REQ_ERR,
        IB_WC_REM_ABORT_ERR,
        IB_WC_INV_EECN_ERR,
        IB_WC_INV_EEC_STATE_ERR,
        IB_WC_FATAL_ERR,
        IB_WC_RESP_TIMEOUT_ERR,
        IB_WC_GENERAL_ERR
};

enum ib_wc_opcode {
        IB_WC_SEND,
        IB_WC_RDMA_WRITE,
        IB_WC_RDMA_READ,
        IB_WC_COMP_SWAP,
        IB_WC_FETCH_ADD,
        IB_WC_BIND_MW,
/*
 * Set value of IB_WC_RECV so consumers can test if a completion is a
 * receive by testing (opcode & IB_WC_RECV).
 */
        IB_WC_RECV                      = 1 << 7,
        IB_WC_RECV_RDMA_WITH_IMM
};

enum ib_wc_flags {
        IB_WC_GRH               = 1,
        IB_WC_WITH_IMM          = (1<<1),
};

struct ib_wc {
        uint64_t                wr_id;
        enum ib_wc_status       status;
        enum ib_wc_opcode       opcode;
        uint32_t                vendor_err;
        uint32_t                byte_len;
        struct ib_qp            *qp;
        uint32_t                imm_data;
        uint32_t                src_qp;
        int                     wc_flags;
        uint16_t                pkey_index;
        uint16_t                slid;
        uint8_t                 sl;
        uint8_t                 dlid_path_bits;
        uint8_t                 port_num;
};

enum ib_cq_notify_flags {
        IB_CQ_SOLICITED                 = 1 << 0,
        IB_CQ_NEXT_COMP                 = 1 << 1,
        IB_CQ_SOLICITED_MASK            = IB_CQ_SOLICITED | IB_CQ_NEXT_COMP,
        IB_CQ_REPORT_MISSED_EVENTS      = 1 << 2,
};

enum ib_srq_attr_mask {
        IB_SRQ_MAX_WR   = 1 << 0,
        IB_SRQ_LIMIT    = 1 << 1,
};

struct ib_srq_attr {
        uint32_t        max_wr;
        uint32_t        max_sge;
        uint32_t        srq_limit;
};

struct ib_srq_init_attr {
        void                    (*event_handler)(struct ib_event *, void *);
        void                    *srq_context;
        struct ib_srq_attr      attr;
};

struct ib_qp_cap {
        uint32_t        max_send_wr;
        uint32_t        max_recv_wr;
        uint32_t        max_send_sge;
        uint32_t        max_recv_sge;
        uint32_t        max_inline_data;
};

enum ib_sig_type {
        IB_SIGNAL_ALL_WR,
        IB_SIGNAL_REQ_WR
};

enum ib_qp_type {
        /*
         * IB_QPT_SMI and IB_QPT_GSI have to be the first two entries
         * here (and in that order) since the MAD layer uses them as
         * indices into a 2-entry table.
         */
        IB_QPT_SMI,
        IB_QPT_GSI,

        IB_QPT_RC,
        IB_QPT_UC,
        IB_QPT_UD,
        IB_QPT_RAW_IPV6,
        IB_QPT_RAW_ETY
};

struct ib_qp_init_attr {
        void                    (*event_handler)(struct ib_event *, void *);
        void                    *qp_context;
        struct ib_cq            *send_cq;
        struct ib_cq            *recv_cq;
        struct ib_srq           *srq;
        struct ib_qp_cap        cap;
        enum ib_sig_type        sq_sig_type;
        enum ib_qp_type         qp_type;
        uint8_t                 port_num; /* special QP types only */
};

enum ib_rnr_timeout {
        IB_RNR_TIMER_655_36 =  0,
        IB_RNR_TIMER_000_01 =  1,
        IB_RNR_TIMER_000_02 =  2,
        IB_RNR_TIMER_000_03 =  3,
        IB_RNR_TIMER_000_04 =  4,
        IB_RNR_TIMER_000_06 =  5,
        IB_RNR_TIMER_000_08 =  6,
        IB_RNR_TIMER_000_12 =  7,
        IB_RNR_TIMER_000_16 =  8,
        IB_RNR_TIMER_000_24 =  9,
        IB_RNR_TIMER_000_32 = 10,
        IB_RNR_TIMER_000_48 = 11,
        IB_RNR_TIMER_000_64 = 12,
        IB_RNR_TIMER_000_96 = 13,
        IB_RNR_TIMER_001_28 = 14,
        IB_RNR_TIMER_001_92 = 15,
        IB_RNR_TIMER_002_56 = 16,
        IB_RNR_TIMER_003_84 = 17,
        IB_RNR_TIMER_005_12 = 18,
        IB_RNR_TIMER_007_68 = 19,
        IB_RNR_TIMER_010_24 = 20,
        IB_RNR_TIMER_015_36 = 21,
        IB_RNR_TIMER_020_48 = 22,
        IB_RNR_TIMER_030_72 = 23,
        IB_RNR_TIMER_040_96 = 24,
        IB_RNR_TIMER_061_44 = 25,
        IB_RNR_TIMER_081_92 = 26,
        IB_RNR_TIMER_122_88 = 27,
        IB_RNR_TIMER_163_84 = 28,
        IB_RNR_TIMER_245_76 = 29,
        IB_RNR_TIMER_327_68 = 30,
        IB_RNR_TIMER_491_52 = 31
};

enum ib_qp_attr_mask {
        IB_QP_STATE                     = 1,
        IB_QP_CUR_STATE                 = (1<<1),
        IB_QP_EN_SQD_ASYNC_NOTIFY       = (1<<2),
        IB_QP_ACCESS_FLAGS              = (1<<3),
        IB_QP_PKEY_INDEX                = (1<<4),
        IB_QP_PORT                      = (1<<5),
        IB_QP_QKEY                      = (1<<6),
        IB_QP_AV                        = (1<<7),
        IB_QP_PATH_MTU                  = (1<<8),
        IB_QP_TIMEOUT                   = (1<<9),
        IB_QP_RETRY_CNT                 = (1<<10),
        IB_QP_RNR_RETRY                 = (1<<11),
        IB_QP_RQ_PSN                    = (1<<12),
        IB_QP_MAX_QP_RD_ATOMIC          = (1<<13),
        IB_QP_ALT_PATH                  = (1<<14),
        IB_QP_MIN_RNR_TIMER             = (1<<15),
        IB_QP_SQ_PSN                    = (1<<16),
        IB_QP_MAX_DEST_RD_ATOMIC        = (1<<17),
        IB_QP_PATH_MIG_STATE            = (1<<18),
        IB_QP_CAP                       = (1<<19),
        IB_QP_DEST_QPN                  = (1<<20)
};

enum ib_qp_state {
        IB_QPS_RESET,
        IB_QPS_INIT,
        IB_QPS_RTR,
        IB_QPS_RTS,
        IB_QPS_SQD,
        IB_QPS_SQE,
        IB_QPS_ERR
};

enum ib_mig_state {
        IB_MIG_MIGRATED,
        IB_MIG_REARM,
        IB_MIG_ARMED
};

struct ib_qp_attr {
        enum ib_qp_state        qp_state;
        enum ib_qp_state        cur_qp_state;
        enum ib_mtu             path_mtu;
        enum ib_mig_state       path_mig_state;
        uint32_t                qkey;
        uint32_t                rq_psn;
        uint32_t                sq_psn;
        uint32_t                dest_qp_num;
        int                     qp_access_flags;
        struct ib_qp_cap        cap;
        struct ib_ah_attr       ah_attr;
        struct ib_ah_attr       alt_ah_attr;
        uint16_t                pkey_index;
        uint16_t                alt_pkey_index;
        uint8_t                 en_sqd_async_notify;
        uint8_t                 sq_draining;
        uint8_t                 max_rd_atomic;
        uint8_t                 max_dest_rd_atomic;
        uint8_t                 min_rnr_timer;
        uint8_t                 port_num;
        uint8_t                 timeout;
        uint8_t                 retry_cnt;
        uint8_t                 rnr_retry;
        uint8_t                 alt_port_num;
        uint8_t                 alt_timeout;
};

enum ib_wr_opcode {
        IB_WR_RDMA_WRITE,
        IB_WR_RDMA_WRITE_WITH_IMM,
        IB_WR_SEND,
        IB_WR_SEND_WITH_IMM,
        IB_WR_RDMA_READ,
        IB_WR_ATOMIC_CMP_AND_SWP,
        IB_WR_ATOMIC_FETCH_AND_ADD
};

enum ib_access_flags {
        IB_ACCESS_LOCAL_WRITE   = 1,
        IB_ACCESS_REMOTE_WRITE  = (1<<1),
        IB_ACCESS_REMOTE_READ   = (1<<2),
        IB_ACCESS_REMOTE_ATOMIC = (1<<3),
        IB_ACCESS_MW_BIND       = (1<<4),
        IB_ACCESS_SO            = (1<<5)        /* MR with Strong Ordering */
};

struct ib_pd {
        struct ib_device        *device;
        ibt_pd_hdl_t            ibt_pd;
};

typedef void (*ib_comp_handler)(struct ib_cq *cq, void *cq_context);

struct ib_cq {
        struct ib_device        *device;
        ib_comp_handler         comp_handler;
        void                    (*event_handler)(struct ib_event *, void *);
        void                    *cq_context;
        int                     cqe;
        ibt_cq_hdl_t            ibt_cq;
        kmutex_t                lock;
};

struct ib_srq {
        struct ib_device        *device;
        struct ib_pd            *pd;
        void                    (*event_handler)(struct ib_event *, void *);
        void                    *srq_context;
        ibt_srq_hdl_t           ibt_srq;
};

struct ib_qp {
        struct ib_device        *device;
        struct ib_pd            *pd;
        struct ib_cq            *send_cq;
        struct ib_cq            *recv_cq;
        struct ib_srq           *srq;
        void                    (*event_handler)(struct ib_event *, void *);
        void                    *qp_context;
        uint32_t                qp_num;
        enum ib_qp_type         qp_type;
        ibt_qp_hdl_t            ibt_qp;
        kmutex_t                lock;
};

#define IB_DEVICE_NAME_MAX      64

typedef struct ib_device {
        ibt_hca_hdl_t           hca_hdl;
        char                    name[IB_DEVICE_NAME_MAX];
        uint64_t                node_guid;
        uint32_t                local_dma_lkey;
        uint8_t                 phys_port_cnt;
        uint8_t                 node_type;
        enum {
                                IB_DEV_UNINITIALIZED,
                                IB_DEV_REGISTERED,
                                IB_DEV_UNREGISTERED,
                                IB_DEV_CLOSE = 100,
                                IB_DEV_OPEN
        } reg_state;
        void                    *data;
        ofs_client_p_t          clnt_hdl;
        struct llist_head       list;
} ib_device_t;

typedef struct ib_client {
        char            *name;
        void            (*add)   (struct ib_device *);
        void            (*remove)(struct ib_device *);
        dev_info_t      *dip;
        ofs_client_p_t  clnt_hdl;
        enum {
                        IB_CLNT_UNINITIALIZED,
                        IB_CLNT_INITIALIZED
        } state;
} ib_client_t;

int ib_register_client(struct ib_client *client);
void ib_unregister_client(struct ib_client *client);

void *ib_get_client_data(struct ib_device *device, struct ib_client *client);
void  ib_set_client_data(struct ib_device *device, struct ib_client *client,
    void *data);

int ib_query_device(struct ib_device *device,
    struct ib_device_attr *device_attr);

/*
 * ib_alloc_pd - Allocates an unused protection domain.
 * @device: The device on which to allocate the protection domain.
 *
 * A protection domain object provides an association between QPs, shared
 * receive queues, address handles, memory regions, and memory windows.
 */
struct ib_pd *ib_alloc_pd(struct ib_device *device);

/*
 * ib_dealloc_pd - Deallocates a protection domain.
 * @pd: The protection domain to deallocate.
 */
int ib_dealloc_pd(struct ib_pd *pd);

/*
 * ib_create_qp - Creates a QP associated with the specified protection
 *   domain.
 * @pd: The protection domain associated with the QP.
 * @qp_init_attr: A list of initial attributes required to create the
 *   QP.  If QP creation succeeds, then the attributes are updated to
 *   the actual capabilities of the created QP.
 */
struct ib_qp *ib_create_qp(struct ib_pd *pd,
    struct ib_qp_init_attr *qp_init_attr);

/*
 * ib_modify_qp - Modifies the attributes for the specified QP and then
 *   transitions the QP to the given state.
 * @qp: The QP to modify.
 * @qp_attr: On input, specifies the QP attributes to modify.  On output,
 *   the current values of selected QP attributes are returned.
 * @qp_attr_mask: A bit-mask used to specify which attributes of the QP
 *   are being modified.
 */
int ib_modify_qp(struct ib_qp *qp, struct ib_qp_attr *qp_attr,
    int qp_attr_mask);

/*
 * ib_destroy_qp - Destroys the specified QP.
 * @qp: The QP to destroy.
 */
int ib_destroy_qp(struct ib_qp *qp);

/*
 * IB_CQ_VECTOR_LEAST_ATTACHED: The constant specifies that
 *      the CQ will be attached to the completion vector that has
 *      the least number of CQs already attached to it.
 */
#define IB_CQ_VECTOR_LEAST_ATTACHED     0xffffffff

/*
 * ib_create_cq - Creates a CQ on the specified device.
 * @device: The device on which to create the CQ.
 * @comp_handler: A user-specified callback that is invoked when a
 *   completion event occurs on the CQ.
 * @event_handler: A user-specified callback that is invoked when an
 *   asynchronous event not associated with a completion occurs on the CQ.
 * @cq_context: Context associated with the CQ returned to the user via
 *   the associated completion and event handlers.
 * @cqe: The minimum size of the CQ.
 * @comp_vector - Completion queue sched handle.
 *
 * Users can examine the cq structure to determine the actual CQ size.
 */
struct ib_cq *ib_create_cq(struct ib_device *device,
    ib_comp_handler comp_handler,
    void (*event_handler)(struct ib_event *, void *),
    void *cq_context, int cqe, void *comp_vector);

/*
 * ib_destroy_cq - Destroys the specified CQ.
 * @cq: The CQ to destroy.
 */
int ib_destroy_cq(struct ib_cq *cq);

/*
 * ib_poll_cq - poll a CQ for completion(s)
 * @cq:the CQ being polled
 * @num_entries:maximum number of completions to return
 * @wc:array of at least @num_entries &struct ib_wc where completions
 *   will be returned
 *
 * Poll a CQ for (possibly multiple) completions.  If the return value
 * is < 0, an error occurred.  If the return value is >= 0, it is the
 * number of completions returned.  If the return value is
 * non-negative and < num_entries, then the CQ was emptied.
 */
int ib_poll_cq(struct ib_cq *cq, int num_entries, struct ib_wc *wc);

/*
 * ib_req_notify_cq - Request completion notification on a CQ.
 * @cq: The CQ to generate an event for.
 * @flags:
 *   Must contain exactly one of %IB_CQ_SOLICITED or %IB_CQ_NEXT_COMP
 *   to request an event on the next solicited event or next work
 *   completion at any type, respectively. %IB_CQ_REPORT_MISSED_EVENTS
 *   may also be |ed in to request a hint about missed events, as
 *   described below.
 *
 * Return Value:
 *    < 0 means an error occurred while requesting notification
 *   == 0 means notification was requested successfully, and if
 *        IB_CQ_REPORT_MISSED_EVENTS was passed in, then no events
 *        were missed and it is safe to wait for another event.  In
 *        this case is it guaranteed that any work completions added
 *        to the CQ since the last CQ poll will trigger a completion
 *        notification event.
 *    > 0 is only returned if IB_CQ_REPORT_MISSED_EVENTS was passed
 *        in.  It means that the consumer must poll the CQ again to
 *        make sure it is empty to avoid missing an event because of a
 *        race between requesting notification and an entry being
 *        added to the CQ.  This return value means it is possible
 *        (but not guaranteed) that a work completion has been added
 *        to the CQ since the last poll without triggering a
 *        completion notification event.
 */
int ib_req_notify_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags);

struct rdma_cm_id;
ibt_hca_hdl_t ib_get_ibt_hca_hdl(struct ib_device *device);

ibt_channel_hdl_t
ib_get_ibt_channel_hdl(struct rdma_cm_id *cm);

#ifdef __cplusplus
}
#endif
#endif /* _SYS_IB_CLIENTS_OF_IB_VERBS_H */