From 3eb450367d0823226515ee24712ed08eccb33eb9 Mon Sep 17 00:00:00 2001 From: Santosh Shilimkar Date: Tue, 23 Oct 2018 23:21:14 -0400 Subject: rds: add type of service(tos) infrastructure RDS Service type (TOS) is user-defined and needs to be configured via RDS IOCTL interface. It must be set before initiating any traffic and once set the TOS can not be changed. All out-going traffic from the socket will be associated with its TOS. Reviewed-by: Sowmini Varadhan Signed-off-by: Santosh Shilimkar [yanjun.zhu@oracle.com: Adapted original patch with ipv6 changes] Signed-off-by: Zhu Yanjun --- net/rds/connection.c | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-) (limited to 'net/rds/connection.c') diff --git a/net/rds/connection.c b/net/rds/connection.c index 1ab14b68ecc8..7ea134f9a825 100644 --- a/net/rds/connection.c +++ b/net/rds/connection.c @@ -84,7 +84,7 @@ static struct rds_connection *rds_conn_lookup(struct net *net, const struct in6_addr *laddr, const struct in6_addr *faddr, struct rds_transport *trans, - int dev_if) + u8 tos, int dev_if) { struct rds_connection *conn, *ret = NULL; @@ -92,6 +92,7 @@ static struct rds_connection *rds_conn_lookup(struct net *net, if (ipv6_addr_equal(&conn->c_faddr, faddr) && ipv6_addr_equal(&conn->c_laddr, laddr) && conn->c_trans == trans && + conn->c_tos == tos && net == rds_conn_net(conn) && conn->c_dev_if == dev_if) { ret = conn; @@ -160,7 +161,7 @@ static struct rds_connection *__rds_conn_create(struct net *net, const struct in6_addr *laddr, const struct in6_addr *faddr, struct rds_transport *trans, - gfp_t gfp, + gfp_t gfp, u8 tos, int is_outgoing, int dev_if) { @@ -172,7 +173,7 @@ static struct rds_connection *__rds_conn_create(struct net *net, int npaths = (trans->t_mp_capable ? RDS_MPATH_WORKERS : 1); rcu_read_lock(); - conn = rds_conn_lookup(net, head, laddr, faddr, trans, dev_if); + conn = rds_conn_lookup(net, head, laddr, faddr, trans, tos, dev_if); if (conn && conn->c_loopback && conn->c_trans != &rds_loop_transport && @@ -206,6 +207,7 @@ static struct rds_connection *__rds_conn_create(struct net *net, conn->c_isv6 = !ipv6_addr_v4mapped(laddr); conn->c_faddr = *faddr; conn->c_dev_if = dev_if; + conn->c_tos = tos; #if IS_ENABLED(CONFIG_IPV6) /* If the local address is link local, set c_bound_if to be the @@ -298,7 +300,7 @@ static struct rds_connection *__rds_conn_create(struct net *net, struct rds_connection *found; found = rds_conn_lookup(net, head, laddr, faddr, trans, - dev_if); + tos, dev_if); if (found) { struct rds_conn_path *cp; int i; @@ -333,10 +335,10 @@ out: struct rds_connection *rds_conn_create(struct net *net, const struct in6_addr *laddr, const struct in6_addr *faddr, - struct rds_transport *trans, gfp_t gfp, - int dev_if) + struct rds_transport *trans, u8 tos, + gfp_t gfp, int dev_if) { - return __rds_conn_create(net, laddr, faddr, trans, gfp, 0, dev_if); + return __rds_conn_create(net, laddr, faddr, trans, gfp, tos, 0, dev_if); } EXPORT_SYMBOL_GPL(rds_conn_create); @@ -344,9 +346,9 @@ struct rds_connection *rds_conn_create_outgoing(struct net *net, const struct in6_addr *laddr, const struct in6_addr *faddr, struct rds_transport *trans, - gfp_t gfp, int dev_if) + u8 tos, gfp_t gfp, int dev_if) { - return __rds_conn_create(net, laddr, faddr, trans, gfp, 1, dev_if); + return __rds_conn_create(net, laddr, faddr, trans, gfp, tos, 1, dev_if); } EXPORT_SYMBOL_GPL(rds_conn_create_outgoing); -- cgit