Commit d39e0602 authored by Steve Wise's avatar Steve Wise Committed by David S. Miller
Browse files

RDS/IW+IB: Set the RDS_LL_SEND_FULL bit when we're throttled.



The RDS_LL_SEND_FULL bit should be set when we stop transmitted due to
flow control.  Otherwise the send worker will keep trying as opposed to
sleeping until we unthrottle.  Saves CPU.
Signed-off-by: default avatarSteve Wise <swise@opengridcomputing.com>
Signed-off-by: default avatarAndy Grover <andy.grover@oracle.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 11bc9421
......@@ -506,7 +506,7 @@ int rds_ib_xmit(struct rds_connection *conn, struct rds_message *rm,
flow_controlled++;
}
if (work_alloc == 0) {
rds_ib_ring_unalloc(&ic->i_send_ring, work_alloc);
set_bit(RDS_LL_SEND_FULL, &conn->c_flags);
rds_ib_stats_inc(s_ib_tx_throttle);
ret = -ENOMEM;
goto out;
......
......@@ -549,7 +549,7 @@ int rds_iw_xmit(struct rds_connection *conn, struct rds_message *rm,
flow_controlled++;
}
if (work_alloc == 0) {
rds_iw_ring_unalloc(&ic->i_send_ring, work_alloc);
set_bit(RDS_LL_SEND_FULL, &conn->c_flags);
rds_iw_stats_inc(s_iw_tx_throttle);
ret = -ENOMEM;
goto out;
......
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