include/uapi/rdma/rdma_user_cm.h - linux - Git at Google

 /* 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[0];
 };

 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 */
	/* 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[0];
	};

	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 */