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 6baf8255e4f4bf309f90ca22431b93fbf97fcc58..e559f0fa85515842248db950be89a161ef204b03 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: