Commit 2c049f19 authored by Jeff Kirsher's avatar Jeff Kirsher Committed by Greg Kroah-Hartman

ixgbe: fix older devices that do not support IXGBE_MRQC_L3L4TXSWEN

[ Upstream commit 156a67a9 ]

The enabling L3/L4 filtering for transmit switched packets for all
devices caused unforeseen issue on older devices when trying to send UDP
traffic in an ordered sequence.  This bit was originally intended for X550
devices, which supported this feature, so limit the scope of this bit to
only X550 devices.
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
Tested-by: default avatarAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 064a61d3
......@@ -3924,7 +3924,10 @@ static void ixgbe_setup_mrqc(struct ixgbe_adapter *adapter)
else
mrqc = IXGBE_MRQC_VMDQRSS64EN;
/* Enable L3/L4 for Tx Switched packets */
/* Enable L3/L4 for Tx Switched packets only for X550,
* older devices do not support this feature
*/
if (hw->mac.type >= ixgbe_mac_X550)
mrqc |= IXGBE_MRQC_L3L4TXSWEN;
} else {
if (tcs > 4)
......
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