Commit d6ea7c9c authored Jul 19, 2010 by Alexander Duyck Committed by David S. Miller Jul 19, 2010

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 <alexander.h.duyck@intel.com>
Acked-by: Don Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent fca562ad

drivers/net/ixgbe/ixgbe_main.c

+1 −3

Original line number	Diff line number	Diff line
		@@ -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);