net/ixgbe: fix mask bits register set error for FDIR

MAC address bits in mask registers should be set to zero
when the is mac mask is 0xFF, otherwise if it is 0x0
these bits should be to 0x3F.

Fixes: 82fb702077f6 ("ixgbe: support new flow director modes for X550")
Cc: stable@dpdk.org
Signed-off-by: Wei Zhao <wei.zhao1@intel.com>
Acked-by: Wenzhuo Lu <wenzhuo.lu@intel.com>

diff --git a/drivers/net/ixgbe/ixgbe_fdir.c b/drivers/net/ixgbe/ixgbe_fdir.c
index 6baf825..e559f0f 100644 (file)
--- a/drivers/net/ixgbe/ixgbe_fdir.c
+++ b/drivers/net/ixgbe/ixgbe_fdir.c
@@ -394,9 +394,12 @@ fdir_set_input_mask_x550(struct rte_eth_dev *dev)
                                IXGBE_FDIRIP6M_TNI_VNI;
 
        if (mode == RTE_FDIR_MODE_PERFECT_TUNNEL) {
-               mac_mask = info->mask.mac_addr_byte_mask;
-               fdiripv6m |= (mac_mask << IXGBE_FDIRIP6M_INNER_MAC_SHIFT)
-                               & IXGBE_FDIRIP6M_INNER_MAC;
+               fdiripv6m |= IXGBE_FDIRIP6M_INNER_MAC;
+               mac_mask = info->mask.mac_addr_byte_mask &
+                       (IXGBE_FDIRIP6M_INNER_MAC >>
+                       IXGBE_FDIRIP6M_INNER_MAC_SHIFT);
+               fdiripv6m &= ~((mac_mask << IXGBE_FDIRIP6M_INNER_MAC_SHIFT) &
+                               IXGBE_FDIRIP6M_INNER_MAC);
 
                switch (info->mask.tunnel_type_mask) {
                case 0: