[PATCH net-next 02/17] RDS: add t_mp_capable bit to be set by MP capable transports
From: Sowmini Varadhan <hidden>
Date: 2016-06-13 16:45:13
Subsystem:
networking [general], rds - reliable datagram sockets, the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Allison Henderson, Linus Torvalds
The t_mp_capable bit will be used in the core rds module to support multipathing logic when the transport supports it. Signed-off-by: Sowmini Varadhan <redacted> --- net/rds/rds.h | 7 ++++++- 1 files changed, 6 insertions(+), 1 deletions(-)
diff --git a/net/rds/rds.h b/net/rds/rds.h
index ca31a07..28f001c 100644
--- a/net/rds/rds.h
+++ b/net/rds/rds.h@@ -446,7 +446,8 @@ struct rds_transport { char t_name[TRANSNAMSIZ]; struct list_head t_item; struct module *t_owner; - unsigned int t_prefer_loopback:1; + unsigned int t_prefer_loopback:1, + t_mp_capable:1; unsigned int t_type; int (*laddr_check)(struct net *net, __be32 addr);
@@ -673,6 +674,7 @@ rds_conn_path_transition(struct rds_conn_path *cp, int old, int new) static inline int rds_conn_transition(struct rds_connection *conn, int old, int new) { + WARN_ON(conn->c_trans->t_mp_capable); return rds_conn_path_transition(&conn->c_path[0], old, new); }
@@ -685,6 +687,7 @@ rds_conn_path_state(struct rds_conn_path *cp) static inline int rds_conn_state(struct rds_connection *conn) { + WARN_ON(conn->c_trans->t_mp_capable); return rds_conn_path_state(&conn->c_path[0]); }
@@ -697,6 +700,7 @@ rds_conn_path_up(struct rds_conn_path *cp) static inline int rds_conn_up(struct rds_connection *conn) { + WARN_ON(conn->c_trans->t_mp_capable); return rds_conn_path_up(&conn->c_path[0]); }
@@ -709,6 +713,7 @@ rds_conn_path_connecting(struct rds_conn_path *cp) static inline int rds_conn_connecting(struct rds_connection *conn) { + WARN_ON(conn->c_trans->t_mp_capable); return rds_conn_path_connecting(&conn->c_path[0]); }
--
1.7.1