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RDS: add t_mp_capable bit to be set by MP capable transports

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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 <sowmini.varadhan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sowmini Varadhan 2016-06-13 09:44:27 -07:00 committed by David S. Miller
parent 0cb43965d4
commit 7e8f4413d7
1 changed files with 6 additions and 1 deletions
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7
net/rds/rds.h
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@ -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]);
}