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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 */