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Viewing File: rdma_user_cm.h
/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR Linux-OpenIB) */
/*
* Copyright (c) 2005-2006 Intel Corporation. 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 RDMA_USER_CM_H
#define RDMA_USER_CM_H
#include <linux/types.h>
#include <linux/socket.h>
#include <linux/in6.h>
#include <rdma/ib_user_verbs.h>
#include <rdma/ib_user_sa.h>
#define RDMA_USER_CM_ABI_VERSION 4
#define RDMA_MAX_PRIVATE_DATA 256
enum {
RDMA_USER_CM_CMD_CREATE_ID,
RDMA_USER_CM_CMD_DESTROY_ID,
RDMA_USER_CM_CMD_BIND_IP,
RDMA_USER_CM_CMD_RESOLVE_IP,
RDMA_USER_CM_CMD_RESOLVE_ROUTE,
RDMA_USER_CM_CMD_QUERY_ROUTE,
RDMA_USER_CM_CMD_CONNECT,
RDMA_USER_CM_CMD_LISTEN,
RDMA_USER_CM_CMD_ACCEPT,
RDMA_USER_CM_CMD_REJECT,
RDMA_USER_CM_CMD_DISCONNECT,
RDMA_USER_CM_CMD_INIT_QP_ATTR,
RDMA_USER_CM_CMD_GET_EVENT,
RDMA_USER_CM_CMD_GET_OPTION,
RDMA_USER_CM_CMD_SET_OPTION,
RDMA_USER_CM_CMD_NOTIFY,
RDMA_USER_CM_CMD_JOIN_IP_MCAST,
RDMA_USER_CM_CMD_LEAVE_MCAST,
RDMA_USER_CM_CMD_MIGRATE_ID,
RDMA_USER_CM_CMD_QUERY,
RDMA_USER_CM_CMD_BIND,
RDMA_USER_CM_CMD_RESOLVE_ADDR,
RDMA_USER_CM_CMD_JOIN_MCAST
};
/* See IBTA Annex A11, servies ID bytes 4 & 5 */
enum rdma_ucm_port_space {
RDMA_PS_IPOIB = 0x0002,
RDMA_PS_IB = 0x013F,
RDMA_PS_TCP = 0x0106,
RDMA_PS_UDP = 0x0111,
};
/*
* command ABI structures.
*/
struct rdma_ucm_cmd_hdr {
__u32 cmd;
__u16 in;
__u16 out;
};
struct rdma_ucm_create_id {
__aligned_u64 uid;
__aligned_u64 response;
__u16 ps; /* use enum rdma_ucm_port_space */
__u8 qp_type;
__u8 reserved[5];
};
struct rdma_ucm_create_id_resp {
__u32 id;
};
struct rdma_ucm_destroy_id {
__aligned_u64 response;
__u32 id;
__u32 reserved;
};
struct rdma_ucm_destroy_id_resp {
__u32 events_reported;
};
struct rdma_ucm_bind_ip {
__aligned_u64 response;
struct sockaddr_in6 addr;
__u32 id;
};
struct rdma_ucm_bind {
__u32 id;
__u16 addr_size;
__u16 reserved;
struct __kernel_sockaddr_storage addr;
};
struct rdma_ucm_resolve_ip {
struct sockaddr_in6 src_addr;
struct sockaddr_in6 dst_addr;
__u32 id;
__u32 timeout_ms;
};
struct rdma_ucm_resolve_addr {
__u32 id;
__u32 timeout_ms;
__u16 src_size;
__u16 dst_size;
__u32 reserved;
struct __kernel_sockaddr_storage src_addr;
struct __kernel_sockaddr_storage dst_addr;
};
struct rdma_ucm_resolve_route {
__u32 id;
__u32 timeout_ms;
};
enum {
RDMA_USER_CM_QUERY_ADDR,
RDMA_USER_CM_QUERY_PATH,
RDMA_USER_CM_QUERY_GID
};
struct rdma_ucm_query {
__aligned_u64 response;
__u32 id;
__u32 option;
};
struct rdma_ucm_query_route_resp {
__aligned_u64 node_guid;
struct ib_user_path_rec ib_route[2];
struct sockaddr_in6 src_addr;
struct sockaddr_in6 dst_addr;
__u32 num_paths;
__u8 port_num;
__u8 reserved[3];
__u32 ibdev_index;
__u32 reserved1;
};
struct rdma_ucm_query_addr_resp {
__aligned_u64 node_guid;
__u8 port_num;
__u8 reserved;
__u16 pkey;
__u16 src_size;
__u16 dst_size;
struct __kernel_sockaddr_storage src_addr;
struct __kernel_sockaddr_storage dst_addr;
__u32 ibdev_index;
__u32 reserved1;
};
struct rdma_ucm_query_path_resp {
__u32 num_paths;
__u32 reserved;
struct ib_path_rec_data path_data[];
};
struct rdma_ucm_conn_param {
__u32 qp_num;
__u32 qkey;
__u8 private_data[RDMA_MAX_PRIVATE_DATA];
__u8 private_data_len;
__u8 srq;
__u8 responder_resources;
__u8 initiator_depth;
__u8 flow_control;
__u8 retry_count;
__u8 rnr_retry_count;
__u8 valid;
};
struct rdma_ucm_ud_param {
__u32 qp_num;
__u32 qkey;
struct ib_uverbs_ah_attr ah_attr;
__u8 private_data[RDMA_MAX_PRIVATE_DATA];
__u8 private_data_len;
__u8 reserved[7];
};
struct rdma_ucm_ece {
__u32 vendor_id;
__u32 attr_mod;
};
struct rdma_ucm_connect {
struct rdma_ucm_conn_param conn_param;
__u32 id;
__u32 reserved;
struct rdma_ucm_ece ece;
};
struct rdma_ucm_listen {
__u32 id;
__u32 backlog;
};
struct rdma_ucm_accept {
__aligned_u64 uid;
struct rdma_ucm_conn_param conn_param;
__u32 id;
__u32 reserved;
struct rdma_ucm_ece ece;
};
struct rdma_ucm_reject {
__u32 id;
__u8 private_data_len;
__u8 reason;
__u8 reserved[2];
__u8 private_data[RDMA_MAX_PRIVATE_DATA];
};
struct rdma_ucm_disconnect {
__u32 id;
};
struct rdma_ucm_init_qp_attr {
__aligned_u64 response;
__u32 id;
__u32 qp_state;
};
struct rdma_ucm_notify {
__u32 id;
__u32 event;
};
struct rdma_ucm_join_ip_mcast {
__aligned_u64 response; /* rdma_ucm_create_id_resp */
__aligned_u64 uid;
struct sockaddr_in6 addr;
__u32 id;
};
/* Multicast join flags */
enum {
RDMA_MC_JOIN_FLAG_FULLMEMBER,
RDMA_MC_JOIN_FLAG_SENDONLY_FULLMEMBER,
RDMA_MC_JOIN_FLAG_RESERVED,
};
struct rdma_ucm_join_mcast {
__aligned_u64 response; /* rdma_ucma_create_id_resp */
__aligned_u64 uid;
__u32 id;
__u16 addr_size;
__u16 join_flags;
struct __kernel_sockaddr_storage addr;
};
struct rdma_ucm_get_event {
__aligned_u64 response;
};
struct rdma_ucm_event_resp {
__aligned_u64 uid;
__u32 id;
__u32 event;
__u32 status;
/*
* NOTE: This union is not aligned to 8 bytes so none of the union
* members may contain a u64 or anything with higher alignment than 4.
*/
union {
struct rdma_ucm_conn_param conn;
struct rdma_ucm_ud_param ud;
} param;
__u32 reserved;
struct rdma_ucm_ece ece;
};
/* Option levels */
enum {
RDMA_OPTION_ID = 0,
RDMA_OPTION_IB = 1
};
/* Option details */
enum {
RDMA_OPTION_ID_TOS = 0,
RDMA_OPTION_ID_REUSEADDR = 1,
RDMA_OPTION_ID_AFONLY = 2,
RDMA_OPTION_ID_ACK_TIMEOUT = 3
};
enum {
RDMA_OPTION_IB_PATH = 1
};
struct rdma_ucm_set_option {
__aligned_u64 optval;
__u32 id;
__u32 level;
__u32 optname;
__u32 optlen;
};
struct rdma_ucm_migrate_id {
__aligned_u64 response;
__u32 id;
__u32 fd;
};
struct rdma_ucm_migrate_resp {
__u32 events_reported;
};
#endif /* RDMA_USER_CM_H */
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