342 lines
7.0 KiB
C
342 lines
7.0 KiB
C
/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR Linux-OpenIB) */
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/*
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* Copyright (c) 2005-2006 Intel Corporation. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef RDMA_USER_CM_H
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#define RDMA_USER_CM_H
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#include <linux/types.h>
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#include <linux/socket.h>
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#include <linux/in6.h>
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#include <rdma/ib_user_verbs.h>
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#include <rdma/ib_user_sa.h>
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#define RDMA_USER_CM_ABI_VERSION 4
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#define RDMA_MAX_PRIVATE_DATA 256
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enum {
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RDMA_USER_CM_CMD_CREATE_ID,
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RDMA_USER_CM_CMD_DESTROY_ID,
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RDMA_USER_CM_CMD_BIND_IP,
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RDMA_USER_CM_CMD_RESOLVE_IP,
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RDMA_USER_CM_CMD_RESOLVE_ROUTE,
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RDMA_USER_CM_CMD_QUERY_ROUTE,
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RDMA_USER_CM_CMD_CONNECT,
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RDMA_USER_CM_CMD_LISTEN,
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RDMA_USER_CM_CMD_ACCEPT,
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RDMA_USER_CM_CMD_REJECT,
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RDMA_USER_CM_CMD_DISCONNECT,
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RDMA_USER_CM_CMD_INIT_QP_ATTR,
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RDMA_USER_CM_CMD_GET_EVENT,
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RDMA_USER_CM_CMD_GET_OPTION,
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RDMA_USER_CM_CMD_SET_OPTION,
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RDMA_USER_CM_CMD_NOTIFY,
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RDMA_USER_CM_CMD_JOIN_IP_MCAST,
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RDMA_USER_CM_CMD_LEAVE_MCAST,
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RDMA_USER_CM_CMD_MIGRATE_ID,
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RDMA_USER_CM_CMD_QUERY,
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RDMA_USER_CM_CMD_BIND,
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RDMA_USER_CM_CMD_RESOLVE_ADDR,
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RDMA_USER_CM_CMD_JOIN_MCAST
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};
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/* See IBTA Annex A11, servies ID bytes 4 & 5 */
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enum rdma_ucm_port_space {
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RDMA_PS_IPOIB = 0x0002,
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RDMA_PS_IB = 0x013F,
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RDMA_PS_TCP = 0x0106,
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RDMA_PS_UDP = 0x0111,
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};
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/*
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* command ABI structures.
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*/
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struct rdma_ucm_cmd_hdr {
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__u32 cmd;
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__u16 in;
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__u16 out;
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};
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struct rdma_ucm_create_id {
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__aligned_u64 uid;
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__aligned_u64 response;
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__u16 ps; /* use enum rdma_ucm_port_space */
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__u8 qp_type;
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__u8 reserved[5];
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};
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struct rdma_ucm_create_id_resp {
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__u32 id;
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};
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struct rdma_ucm_destroy_id {
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__aligned_u64 response;
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__u32 id;
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__u32 reserved;
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};
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struct rdma_ucm_destroy_id_resp {
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__u32 events_reported;
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};
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struct rdma_ucm_bind_ip {
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__aligned_u64 response;
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struct sockaddr_in6 addr;
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__u32 id;
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};
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struct rdma_ucm_bind {
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__u32 id;
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__u16 addr_size;
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__u16 reserved;
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struct __kernel_sockaddr_storage addr;
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};
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struct rdma_ucm_resolve_ip {
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struct sockaddr_in6 src_addr;
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struct sockaddr_in6 dst_addr;
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__u32 id;
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__u32 timeout_ms;
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};
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struct rdma_ucm_resolve_addr {
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__u32 id;
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__u32 timeout_ms;
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__u16 src_size;
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__u16 dst_size;
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__u32 reserved;
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struct __kernel_sockaddr_storage src_addr;
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struct __kernel_sockaddr_storage dst_addr;
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};
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struct rdma_ucm_resolve_route {
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__u32 id;
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__u32 timeout_ms;
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};
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enum {
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RDMA_USER_CM_QUERY_ADDR,
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RDMA_USER_CM_QUERY_PATH,
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RDMA_USER_CM_QUERY_GID
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};
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struct rdma_ucm_query {
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__aligned_u64 response;
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__u32 id;
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__u32 option;
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};
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struct rdma_ucm_query_route_resp {
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__aligned_u64 node_guid;
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struct ib_user_path_rec ib_route[2];
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struct sockaddr_in6 src_addr;
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struct sockaddr_in6 dst_addr;
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__u32 num_paths;
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__u8 port_num;
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__u8 reserved[3];
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__u32 ibdev_index;
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__u32 reserved1;
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};
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struct rdma_ucm_query_addr_resp {
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__aligned_u64 node_guid;
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__u8 port_num;
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__u8 reserved;
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__u16 pkey;
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__u16 src_size;
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__u16 dst_size;
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struct __kernel_sockaddr_storage src_addr;
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struct __kernel_sockaddr_storage dst_addr;
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__u32 ibdev_index;
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__u32 reserved1;
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};
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struct rdma_ucm_query_path_resp {
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__u32 num_paths;
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__u32 reserved;
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struct ib_path_rec_data path_data[0];
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};
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struct rdma_ucm_conn_param {
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__u32 qp_num;
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__u32 qkey;
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__u8 private_data[RDMA_MAX_PRIVATE_DATA];
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__u8 private_data_len;
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__u8 srq;
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__u8 responder_resources;
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__u8 initiator_depth;
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__u8 flow_control;
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__u8 retry_count;
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__u8 rnr_retry_count;
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__u8 valid;
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};
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struct rdma_ucm_ud_param {
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__u32 qp_num;
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__u32 qkey;
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struct ib_uverbs_ah_attr ah_attr;
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__u8 private_data[RDMA_MAX_PRIVATE_DATA];
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__u8 private_data_len;
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__u8 reserved[7];
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};
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struct rdma_ucm_ece {
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__u32 vendor_id;
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__u32 attr_mod;
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};
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struct rdma_ucm_connect {
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struct rdma_ucm_conn_param conn_param;
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__u32 id;
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__u32 reserved;
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struct rdma_ucm_ece ece;
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};
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struct rdma_ucm_listen {
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__u32 id;
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__u32 backlog;
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};
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struct rdma_ucm_accept {
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__aligned_u64 uid;
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struct rdma_ucm_conn_param conn_param;
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__u32 id;
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__u32 reserved;
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struct rdma_ucm_ece ece;
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};
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struct rdma_ucm_reject {
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__u32 id;
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__u8 private_data_len;
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__u8 reason;
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__u8 reserved[2];
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__u8 private_data[RDMA_MAX_PRIVATE_DATA];
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};
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struct rdma_ucm_disconnect {
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__u32 id;
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};
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struct rdma_ucm_init_qp_attr {
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__aligned_u64 response;
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__u32 id;
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__u32 qp_state;
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};
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struct rdma_ucm_notify {
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__u32 id;
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__u32 event;
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};
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struct rdma_ucm_join_ip_mcast {
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__aligned_u64 response; /* rdma_ucm_create_id_resp */
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__aligned_u64 uid;
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struct sockaddr_in6 addr;
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__u32 id;
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};
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/* Multicast join flags */
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enum {
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RDMA_MC_JOIN_FLAG_FULLMEMBER,
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RDMA_MC_JOIN_FLAG_SENDONLY_FULLMEMBER,
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RDMA_MC_JOIN_FLAG_RESERVED,
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};
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struct rdma_ucm_join_mcast {
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__aligned_u64 response; /* rdma_ucma_create_id_resp */
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__aligned_u64 uid;
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__u32 id;
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__u16 addr_size;
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__u16 join_flags;
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struct __kernel_sockaddr_storage addr;
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};
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struct rdma_ucm_get_event {
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__aligned_u64 response;
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};
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struct rdma_ucm_event_resp {
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__aligned_u64 uid;
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__u32 id;
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__u32 event;
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__u32 status;
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/*
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* NOTE: This union is not aligned to 8 bytes so none of the union
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* members may contain a u64 or anything with higher alignment than 4.
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*/
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union {
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struct rdma_ucm_conn_param conn;
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struct rdma_ucm_ud_param ud;
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} param;
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__u32 reserved;
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struct rdma_ucm_ece ece;
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};
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/* Option levels */
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enum {
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RDMA_OPTION_ID = 0,
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RDMA_OPTION_IB = 1
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};
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/* Option details */
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enum {
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RDMA_OPTION_ID_TOS = 0,
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RDMA_OPTION_ID_REUSEADDR = 1,
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RDMA_OPTION_ID_AFONLY = 2,
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RDMA_OPTION_ID_ACK_TIMEOUT = 3
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};
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enum {
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RDMA_OPTION_IB_PATH = 1
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};
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struct rdma_ucm_set_option {
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__aligned_u64 optval;
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__u32 id;
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__u32 level;
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__u32 optname;
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__u32 optlen;
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};
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struct rdma_ucm_migrate_id {
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__aligned_u64 response;
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__u32 id;
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__u32 fd;
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};
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struct rdma_ucm_migrate_resp {
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__u32 events_reported;
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};
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#endif /* RDMA_USER_CM_H */
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