tree 94b3358177c589796224c818b80ca4fdc0944719
parent e112373fd6aa280bd2cbc0d5cc3809115325a1be
author Eli Cohen <eli@dev.mellanox.co.il> 1216104532 -0700
committer Roland Dreier <rolandd@cisco.com> 1216104532 -0700

IPoIB: Double default RX/TX ring sizes

Increase IPoIB ring sizes to twice their original sizes (RX: 128->256,
TX: 64->128) to act as a shock absorber for high traffic peaks.  With
the current settings, we have seen cases that there are many calls to
netif_stop_queue(), which causes degradation in throughput.  Also,
larger receive buffer sizes help IPoIB in CM mode to avoid experiencing
RNR NAK conditions due to insufficient receive buffers at the SRQ.

Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>