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/*

 * Copyright (c) 2005 Topspin Communications.  All rights reserved.

 * Copyright (c) 2005, 2006 Cisco Systems.  All rights reserved.

 * Copyright (c) 2005 PathScale, Inc.  All rights reserved.

 * Copyright (c) 2006 Mellanox Technologies.  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.

 *

 * $Id: ib_user_verbs.h 4019 2005-11-11 00:33:09Z sean.hefty $

 */

#ifndef IB_USER_VERBS_H

#define IB_USER_VERBS_H

#include <linux/types.h>

/*

 * Increment this value if any changes that break userspace ABI

 * compatibility are made.

 */

#define IB_USER_VERBS_ABI_VERSION       6

enum {

        IB_USER_VERBS_CMD_GET_CONTEXT,

        IB_USER_VERBS_CMD_QUERY_DEVICE,

        IB_USER_VERBS_CMD_QUERY_PORT,

        IB_USER_VERBS_CMD_ALLOC_PD,

        IB_USER_VERBS_CMD_DEALLOC_PD,

        IB_USER_VERBS_CMD_CREATE_AH,

        IB_USER_VERBS_CMD_MODIFY_AH,

        IB_USER_VERBS_CMD_QUERY_AH,

        IB_USER_VERBS_CMD_DESTROY_AH,

        IB_USER_VERBS_CMD_REG_MR,

        IB_USER_VERBS_CMD_REG_SMR,

        IB_USER_VERBS_CMD_REREG_MR,

        IB_USER_VERBS_CMD_QUERY_MR,

        IB_USER_VERBS_CMD_DEREG_MR,

        IB_USER_VERBS_CMD_ALLOC_MW,

        IB_USER_VERBS_CMD_BIND_MW,

        IB_USER_VERBS_CMD_DEALLOC_MW,

        IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL,

        IB_USER_VERBS_CMD_CREATE_CQ,

        IB_USER_VERBS_CMD_RESIZE_CQ,

        IB_USER_VERBS_CMD_DESTROY_CQ,

        IB_USER_VERBS_CMD_POLL_CQ,

        IB_USER_VERBS_CMD_PEEK_CQ,

        IB_USER_VERBS_CMD_REQ_NOTIFY_CQ,

        IB_USER_VERBS_CMD_CREATE_QP,

        IB_USER_VERBS_CMD_QUERY_QP,

        IB_USER_VERBS_CMD_MODIFY_QP,

        IB_USER_VERBS_CMD_DESTROY_QP,

        IB_USER_VERBS_CMD_POST_SEND,

        IB_USER_VERBS_CMD_POST_RECV,

        IB_USER_VERBS_CMD_ATTACH_MCAST,

        IB_USER_VERBS_CMD_DETACH_MCAST,

        IB_USER_VERBS_CMD_CREATE_SRQ,

        IB_USER_VERBS_CMD_MODIFY_SRQ,

        IB_USER_VERBS_CMD_QUERY_SRQ,

        IB_USER_VERBS_CMD_DESTROY_SRQ,

        IB_USER_VERBS_CMD_POST_SRQ_RECV

};

/*

 * Make sure that all structs defined in this file remain laid out so

 * that they pack the same way on 32-bit and 64-bit architectures (to

 * avoid incompatibility between 32-bit userspace and 64-bit kernels).

 * Specifically:

 *  - Do not use pointer types -- pass pointers in __u64 instead.

 *  - Make sure that any structure larger than 4 bytes is padded to a

 *    multiple of 8 bytes.  Otherwise the structure size will be

 *    different between 32-bit and 64-bit architectures.

 */

struct ib_uverbs_async_event_desc {

        __u64 element;

        __u32 event_type;       /* enum ib_event_type */

        __u32 reserved;

};

struct ib_uverbs_comp_event_desc {

        __u64 cq_handle;

};

/*

 * All commands from userspace should start with a __u32 command field

 * followed by __u16 in_words and out_words fields (which give the

 * length of the command block and response buffer if any in 32-bit

 * words).  The kernel driver will read these fields first and read

 * the rest of the command struct based on these value.

 */

struct ib_uverbs_cmd_hdr {

        __u32 command;

        __u16 in_words;

        __u16 out_words;

};

struct ib_uverbs_get_context {

        __u64 response;

        __u64 driver_data[0];

};

struct ib_uverbs_get_context_resp {

        __u32 async_fd;

        __u32 num_comp_vectors;

};

struct ib_uverbs_query_device {

        __u64 response;

        __u64 driver_data[0];

};

struct ib_uverbs_query_device_resp {

        __u64 fw_ver;

        __be64 node_guid;

        __be64 sys_image_guid;

        __u64 max_mr_size;

        __u64 page_size_cap;

        __u32 vendor_id;

        __u32 vendor_part_id;

        __u32 hw_ver;

        __u32 max_qp;

        __u32 max_qp_wr;

        __u32 device_cap_flags;

        __u32 max_sge;

        __u32 max_sge_rd;

        __u32 max_cq;

        __u32 max_cqe;

        __u32 max_mr;

        __u32 max_pd;

        __u32 max_qp_rd_atom;

        __u32 max_ee_rd_atom;

        __u32 max_res_rd_atom;

        __u32 max_qp_init_rd_atom;

        __u32 max_ee_init_rd_atom;

        __u32 atomic_cap;

        __u32 max_ee;

        __u32 max_rdd;

        __u32 max_mw;

        __u32 max_raw_ipv6_qp;

        __u32 max_raw_ethy_qp;

        __u32 max_mcast_grp;

        __u32 max_mcast_qp_attach;

        __u32 max_total_mcast_qp_attach;

        __u32 max_ah;

        __u32 max_fmr;

        __u32 max_map_per_fmr;

        __u32 max_srq;

        __u32 max_srq_wr;

        __u32 max_srq_sge;

        __u16 max_pkeys;

        __u8  local_ca_ack_delay;

        __u8  phys_port_cnt;

        __u8  reserved[4];

};

struct ib_uverbs_query_port {

        __u64 response;

        __u8  port_num;

        __u8  reserved[7];

        __u64 driver_data[0];

};

struct ib_uverbs_query_port_resp {

        __u32 port_cap_flags;

        __u32 max_msg_sz;

        __u32 bad_pkey_cntr;

        __u32 qkey_viol_cntr;

        __u32 gid_tbl_len;

        __u16 pkey_tbl_len;

        __u16 lid;

        __u16 sm_lid;

        __u8  state;

        __u8  max_mtu;

        __u8  active_mtu;

        __u8  lmc;

        __u8  max_vl_num;

        __u8  sm_sl;

        __u8  subnet_timeout;

        __u8  init_type_reply;

        __u8  active_width;

        __u8  active_speed;

        __u8  phys_state;

        __u8  reserved[3];

};

struct ib_uverbs_alloc_pd {

        __u64 response;

        __u64 driver_data[0];

};

struct ib_uverbs_alloc_pd_resp {

        __u32 pd_handle;

};

struct ib_uverbs_dealloc_pd {

        __u32 pd_handle;

};

struct ib_uverbs_reg_mr {

        __u64 response;

        __u64 start;

        __u64 length;

        __u64 hca_va;

        __u32 pd_handle;

        __u32 access_flags;

        __u64 driver_data[0];

};

struct ib_uverbs_reg_mr_resp {

        __u32 mr_handle;

        __u32 lkey;

        __u32 rkey;

};

struct ib_uverbs_dereg_mr {

        __u32 mr_handle;

};

struct ib_uverbs_create_comp_channel {

        __u64 response;

};

struct ib_uverbs_create_comp_channel_resp {

        __u32 fd;

};

struct ib_uverbs_create_cq {

        __u64 response;

        __u64 user_handle;

        __u32 cqe;

        __u32 comp_vector;

        __s32 comp_channel;

        __u32 reserved;

        __u64 driver_data[0];

};

struct ib_uverbs_create_cq_resp {

        __u32 cq_handle;

        __u32 cqe;

};

struct ib_uverbs_resize_cq {

        __u64 response;

        __u32 cq_handle;

        __u32 cqe;

        __u64 driver_data[0];

};

struct ib_uverbs_resize_cq_resp {

        __u32 cqe;

        __u32 reserved;

        __u64 driver_data[0];

};

struct ib_uverbs_poll_cq {

        __u64 response;

        __u32 cq_handle;

        __u32 ne;

};

struct ib_uverbs_wc {

        __u64 wr_id;

        __u32 status;

        __u32 opcode;

        __u32 vendor_err;

        __u32 byte_len;

        __u32 imm_data;

        __u32 qp_num;

        __u32 src_qp;

        __u32 wc_flags;

        __u16 pkey_index;

        __u16 slid;

        __u8 sl;

        __u8 dlid_path_bits;

        __u8 port_num;

        __u8 reserved;

};

struct ib_uverbs_poll_cq_resp {

        __u32 count;

        __u32 reserved;

        struct ib_uverbs_wc wc[0];

};

struct ib_uverbs_req_notify_cq {

        __u32 cq_handle;

        __u32 solicited_only;

};

struct ib_uverbs_destroy_cq {

        __u64 response;

        __u32 cq_handle;

        __u32 reserved;

};

struct ib_uverbs_destroy_cq_resp {

        __u32 comp_events_reported;

        __u32 async_events_reported;

};

struct ib_uverbs_global_route {

        __u8  dgid[16];

        __u32 flow_label;

        __u8  sgid_index;

        __u8  hop_limit;

        __u8  traffic_class;

        __u8  reserved;

};

struct ib_uverbs_ah_attr {

        struct ib_uverbs_global_route grh;

        __u16 dlid;

        __u8  sl;

        __u8  src_path_bits;

        __u8  static_rate;

        __u8  is_global;

        __u8  port_num;

        __u8  reserved;

};

struct ib_uverbs_qp_attr {

        __u32   qp_attr_mask;

        __u32   qp_state;

        __u32   cur_qp_state;

        __u32   path_mtu;

        __u32   path_mig_state;

        __u32   qkey;

        __u32   rq_psn;

        __u32   sq_psn;

        __u32   dest_qp_num;

        __u32   qp_access_flags;

        struct ib_uverbs_ah_attr ah_attr;

        struct ib_uverbs_ah_attr alt_ah_attr;

        /* ib_qp_cap */

        __u32   max_send_wr;

        __u32   max_recv_wr;

        __u32   max_send_sge;

        __u32   max_recv_sge;

        __u32   max_inline_data;

        __u16   pkey_index;

        __u16   alt_pkey_index;

        __u8    en_sqd_async_notify;

        __u8    sq_draining;

        __u8    max_rd_atomic;

        __u8    max_dest_rd_atomic;

        __u8    min_rnr_timer;

        __u8    port_num;

        __u8    timeout;

        __u8    retry_cnt;

        __u8    rnr_retry;

        __u8    alt_port_num;

        __u8    alt_timeout;

        __u8    reserved[5];

};

struct ib_uverbs_create_qp {

        __u64 response;

        __u64 user_handle;

        __u32 pd_handle;

        __u32 send_cq_handle;

        __u32 recv_cq_handle;

        __u32 srq_handle;

        __u32 max_send_wr;

        __u32 max_recv_wr;

        __u32 max_send_sge;

        __u32 max_recv_sge;

        __u32 max_inline_data;

        __u8  sq_sig_all;

        __u8  qp_type;

        __u8  is_srq;

        __u8  reserved;

        __u64 driver_data[0];

};

struct ib_uverbs_create_qp_resp {

        __u32 qp_handle;

        __u32 qpn;

        __u32 max_send_wr;

        __u32 max_recv_wr;

        __u32 max_send_sge;

        __u32 max_recv_sge;

        __u32 max_inline_data;

        __u32 reserved;

};

/*

 * This struct needs to remain a multiple of 8 bytes to keep the

 * alignment of the modify QP parameters.

 */

struct ib_uverbs_qp_dest {

        __u8  dgid[16];

        __u32 flow_label;

        __u16 dlid;

        __u16 reserved;

        __u8  sgid_index;

        __u8  hop_limit;

        __u8  traffic_class;

        __u8  sl;

        __u8  src_path_bits;

        __u8  static_rate;

        __u8  is_global;

        __u8  port_num;

};

struct ib_uverbs_query_qp {

        __u64 response;

        __u32 qp_handle;

        __u32 attr_mask;

        __u64 driver_data[0];

};

struct ib_uverbs_query_qp_resp {

        struct ib_uverbs_qp_dest dest;

        struct ib_uverbs_qp_dest alt_dest;

        __u32 max_send_wr;

        __u32 max_recv_wr;

        __u32 max_send_sge;

        __u32 max_recv_sge;

        __u32 max_inline_data;

        __u32 qkey;

        __u32 rq_psn;

        __u32 sq_psn;

        __u32 dest_qp_num;

        __u32 qp_access_flags;

        __u16 pkey_index;

        __u16 alt_pkey_index;

        __u8  qp_state;

        __u8  cur_qp_state;

        __u8  path_mtu;

        __u8  path_mig_state;

        __u8  sq_draining;

        __u8  max_rd_atomic;

        __u8  max_dest_rd_atomic;

        __u8  min_rnr_timer;

        __u8  port_num;

        __u8  timeout;

        __u8  retry_cnt;

        __u8  rnr_retry;

        __u8  alt_port_num;

        __u8  alt_timeout;

        __u8  sq_sig_all;

        __u8  reserved[5];

        __u64 driver_data[0];

};

struct ib_uverbs_modify_qp {

        struct ib_uverbs_qp_dest dest;

        struct ib_uverbs_qp_dest alt_dest;

        __u32 qp_handle;

        __u32 attr_mask;

        __u32 qkey;

        __u32 rq_psn;

        __u32 sq_psn;

        __u32 dest_qp_num;

        __u32 qp_access_flags;

        __u16 pkey_index;

        __u16 alt_pkey_index;

        __u8  qp_state;

        __u8  cur_qp_state;

        __u8  path_mtu;

        __u8  path_mig_state;

        __u8  en_sqd_async_notify;

        __u8  max_rd_atomic;

        __u8  max_dest_rd_atomic;

        __u8  min_rnr_timer;

        __u8  port_num;

        __u8  timeout;

        __u8  retry_cnt;

        __u8  rnr_retry;

        __u8  alt_port_num;

        __u8  alt_timeout;

        __u8  reserved[2];

        __u64 driver_data[0];

};

struct ib_uverbs_modify_qp_resp {

};

struct ib_uverbs_destroy_qp {

        __u64 response;

        __u32 qp_handle;

        __u32 reserved;

};

struct ib_uverbs_destroy_qp_resp {

        __u32 events_reported;

};

/*

 * The ib_uverbs_sge structure isn't used anywhere, since we assume

 * the ib_sge structure is packed the same way on 32-bit and 64-bit

 * architectures in both kernel and user space.  It's just here to

 * document the ABI.

 */

struct ib_uverbs_sge {

        __u64 addr;

        __u32 length;

        __u32 lkey;

};

struct ib_uverbs_send_wr {

        __u64 wr_id;

        __u32 num_sge;

        __u32 opcode;

        __u32 send_flags;

        __u32 imm_data;

        union {

                struct {

                        __u64 remote_addr;

                        __u32 rkey;

                        __u32 reserved;

                } rdma;

                struct {

                        __u64 remote_addr;

                        __u64 compare_add;

                        __u64 swap;

                        __u32 rkey;

                        __u32 reserved;

                } atomic;

                struct {

                        __u32 ah;

                        __u32 remote_qpn;

                        __u32 remote_qkey;

                        __u32 reserved;

                } ud;

        } wr;

};

struct ib_uverbs_post_send {

        __u64 response;

        __u32 qp_handle;

        __u32 wr_count;

        __u32 sge_count;

        __u32 wqe_size;

        struct ib_uverbs_send_wr send_wr[0];

};

struct ib_uverbs_post_send_resp {

        __u32 bad_wr;

};

struct ib_uverbs_recv_wr {

        __u64 wr_id;

        __u32 num_sge;

        __u32 reserved;

};

struct ib_uverbs_post_recv {

        __u64 response;

        __u32 qp_handle;

        __u32 wr_count;

        __u32 sge_count;

        __u32 wqe_size;

        struct ib_uverbs_recv_wr recv_wr[0];

};

struct ib_uverbs_post_recv_resp {

        __u32 bad_wr;

};

struct ib_uverbs_post_srq_recv {

        __u64 response;

        __u32 srq_handle;

        __u32 wr_count;

        __u32 sge_count;

        __u32 wqe_size;

        struct ib_uverbs_recv_wr recv[0];

};

struct ib_uverbs_post_srq_recv_resp {

        __u32 bad_wr;

};

struct ib_uverbs_create_ah {

        __u64 response;

        __u64 user_handle;

        __u32 pd_handle;

        __u32 reserved;

        struct ib_uverbs_ah_attr attr;

};

struct ib_uverbs_create_ah_resp {

        __u32 ah_handle;

};

struct ib_uverbs_destroy_ah {

        __u32 ah_handle;

};

struct ib_uverbs_attach_mcast {

        __u8  gid[16];

        __u32 qp_handle;

        __u16 mlid;

        __u16 reserved;

        __u64 driver_data[0];

};

struct ib_uverbs_detach_mcast {

        __u8  gid[16];

        __u32 qp_handle;

        __u16 mlid;

        __u16 reserved;

        __u64 driver_data[0];

};

struct ib_uverbs_create_srq {

        __u64 response;

        __u64 user_handle;

        __u32 pd_handle;

        __u32 max_wr;

        __u32 max_sge;

        __u32 srq_limit;

        __u64 driver_data[0];

};

struct ib_uverbs_create_srq_resp {

        __u32 srq_handle;

        __u32 max_wr;

        __u32 max_sge;

        __u32 reserved;

};

struct ib_uverbs_modify_srq {

        __u32 srq_handle;

        __u32 attr_mask;

        __u32 max_wr;

        __u32 srq_limit;

        __u64 driver_data[0];

};

struct ib_uverbs_query_srq {

        __u64 response;

        __u32 srq_handle;

        __u32 reserved;

        __u64 driver_data[0];

};

struct ib_uverbs_query_srq_resp {

        __u32 max_wr;

        __u32 max_sge;

        __u32 srq_limit;

        __u32 reserved;

};

struct ib_uverbs_destroy_srq {

        __u64 response;

        __u32 srq_handle;

        __u32 reserved;

};

struct ib_uverbs_destroy_srq_resp {

        __u32 events_reported;

};

#endif /* IB_USER_VERBS_H */