If the hash to port mapping table does not have a valid port (i.e. when
a port goes down), fall back to the simple hashing mechanism to avoid
dropping packets.
Signed-off-by: Jim Hanko <hanko@drivescale.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
struct sk_buff *skb,
unsigned char hash)
{
- return rcu_dereference_bh(LB_HTPM_PORT_BY_HASH(lb_priv, hash));
+ struct team_port *port;
+
+ port = rcu_dereference_bh(LB_HTPM_PORT_BY_HASH(lb_priv, hash));
+ if (likely(port))
+ return port;
+ /* If no valid port in the table, fall back to simple hash */
+ return lb_hash_select_tx_port(team, lb_priv, skb, hash);
}
struct lb_select_tx_port {