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authorJeff Kirsher <jeffrey.t.kirsher@intel.com>2019-01-28 09:45:01 -0800
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2019-02-21 10:49:00 -0800
commit156a67a9065e3339be85f811d1b13b920e50d73b (patch)
treedf492c4c437179bcd5091191cb39136faa9c1cd2 /drivers/net/ethernet/intel
parentmissing barriers in some of unix_sock ->addr and ->path accesses (diff)
downloadlinux-dev-156a67a9065e3339be85f811d1b13b920e50d73b.tar.xz
linux-dev-156a67a9065e3339be85f811d1b13b920e50d73b.zip
ixgbe: fix older devices that do not support IXGBE_MRQC_L3L4TXSWEN
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: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel')
-rw-r--r--drivers/net/ethernet/intel/ixgbe/ixgbe_main.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index daff8183534b..3cbb7e0324fd 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -3953,8 +3953,11 @@ static void ixgbe_setup_mrqc(struct ixgbe_adapter *adapter)
else
mrqc = IXGBE_MRQC_VMDQRSS64EN;
- /* Enable L3/L4 for Tx Switched packets */
- mrqc |= IXGBE_MRQC_L3L4TXSWEN;
+ /* 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)
mrqc = IXGBE_MRQC_RTRSS8TCEN;