From: Alexander Duyck Date: Mon, 19 Jul 2010 13:59:27 +0000 (+0000) Subject: ixgbe: drop support for UDP in RSS hash generation X-Git-Tag: v2.6.36-rc1~571^2~164 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d6ea7c9ccc9fd351fa2675304695d1654331fca3;p=platform%2Fkernel%2Flinux-3.10.git ixgbe: drop support for UDP in RSS hash generation This change removes UDP from the supported protocols for RSS hashing. The reason for removing this protocol is because IP fragmentation was causing a network flow to be broken into two streams, one for fragmented, and one for non-fragmented and this in turn was causing out-of-order issues. Signed-off-by: Alexander Duyck Acked-by: Don Skidmore Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index b235aa1..813d2cb 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -2800,10 +2800,8 @@ static void ixgbe_configure_rx(struct ixgbe_adapter *adapter) /* Perform hash on these packet types */ mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4 | IXGBE_MRQC_RSS_FIELD_IPV4_TCP - | IXGBE_MRQC_RSS_FIELD_IPV4_UDP | IXGBE_MRQC_RSS_FIELD_IPV6 - | IXGBE_MRQC_RSS_FIELD_IPV6_TCP - | IXGBE_MRQC_RSS_FIELD_IPV6_UDP; + | IXGBE_MRQC_RSS_FIELD_IPV6_TCP; } IXGBE_WRITE_REG(hw, IXGBE_MRQC, mrqc);