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>

1 files changed, 1 insertions, 3 deletions

diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index b235aa16290f..813d2cb5b4d0 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);