/* 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,	RDMA_USER_CM_CMD_RESOLVE_IB_SERVICE,	RDMA_USER_CM_CMD_WRITE_CM_EVENT,}; /* 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,	RDMA_USER_CM_QUERY_IB_SERVICE}; 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_query_ib_service_resp {	__u32 num_service_recs;	__u32 reserved;	struct ib_user_service_rec recs[];}; 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;		__u32 arg32[2];	} 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;}; enum {	RDMA_USER_CM_IB_SERVICE_FLAG_ID = 1 << 0,	RDMA_USER_CM_IB_SERVICE_FLAG_NAME = 1 << 1,}; #define RDMA_USER_CM_IB_SERVICE_NAME_SIZE 64struct rdma_ucm_ib_service {	__aligned_u64 service_id;	__u8  service_name[RDMA_USER_CM_IB_SERVICE_NAME_SIZE];	__u32 flags;	__u32 reserved;}; struct rdma_ucm_resolve_ib_service {	__u32 id;	__u32 reserved;	struct rdma_ucm_ib_service ibs;}; struct rdma_ucm_write_cm_event {	__u32 id;	__u32 reserved;	__u32 event;	__u32 status;	union {		struct rdma_ucm_conn_param conn;		struct rdma_ucm_ud_param ud;		__u64 arg;	} param;};#endif /* RDMA_USER_CM_H */