net/rds/rdma_transport.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 #ifndef _RDMA_TRANSPORT_H
0003 #define _RDMA_TRANSPORT_H
0004
0005 #include <rdma/ib_verbs.h>
0006 #include <rdma/rdma_cm.h>
0007 #include "rds.h"
0008
0009 /* RDMA_CM also uses 16385 as the listener port. */
0010 #define RDS_CM_PORT 16385
0011
0012 #define RDS_RDMA_RESOLVE_TIMEOUT_MS     5000
0013
0014 /* Below reject reason is for legacy interoperability issue with non-linux
0015  * RDS endpoints where older version incompatibility is conveyed via value 1.
0016  * For future version(s), proper encoded reject reason should be used.
0017  */
0018 #define RDS_RDMA_REJ_INCOMPAT       1
0019
0020 int rds_rdma_conn_connect(struct rds_connection *conn);
0021 int rds_rdma_cm_event_handler(struct rdma_cm_id *cm_id,
0022                   struct rdma_cm_event *event);
0023 int rds6_rdma_cm_event_handler(struct rdma_cm_id *cm_id,
0024                    struct rdma_cm_event *event);
0025
0026 /* from ib.c */
0027 extern struct rds_transport rds_ib_transport;
0028 int rds_ib_init(void);
0029 void rds_ib_exit(void);
0030
0031 #endif