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RDS: TCP: Enable multipath RDS for TCP

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Use RDS probe-ping to compute how many paths may be used with
the peer, and to synchronously start the multiple paths. If mprds is
supported, hash outgoing traffic to one of multiple paths in rds_sendmsg()
when multipath RDS is supported by the transport.

CC: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sowmini Varadhan
2016-07-14 03:51:03 -07:00
committed by David S. Miller
parent ac3615e7f3
commit 5916e2c155
11 changed files with 257 additions and 30 deletions
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2
net/rds/threads.c
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@@ -156,6 +156,8 @@ void rds_connect_worker(struct work_struct *work)
struct rds_connection *conn = cp->cp_conn;
int ret;
if (cp->cp_index > 1 && cp->cp_conn->c_laddr > cp->cp_conn->c_faddr)
return;
clear_bit(RDS_RECONNECT_PENDING, &cp->cp_flags);
ret = rds_conn_path_transition(cp, RDS_CONN_DOWN, RDS_CONN_CONNECTING);
if (ret) {