[dpdk-dev] [PATCH] net/ixgbe: fix mask bits register set error for FDIR

[Wei Zhao <wei.zhao1@intel.com>]

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")

Signed-off-by: Wei Zhao <wei.zhao1@intel.com>
---
 drivers/net/ixgbe/ixgbe_fdir.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ixgbe/ixgbe_fdir.c b/drivers/net/ixgbe/ixgbe_fdir.c
index 3feb815..6d97aa3 100644
--- a/drivers/net/ixgbe/ixgbe_fdir.c
+++ b/drivers/net/ixgbe/ixgbe_fdir.c
@@ -394,9 +394,15 @@ 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;
+		mac_mask = info->mask.mac_addr_byte_mask & 0x3F;
+		if (mac_mask == 0x3F)
+			fdiripv6m &= ~IXGBE_FDIRIP6M_INNER_MAC;
+		else if (mac_mask == 0)
+			fdiripv6m |= IXGBE_FDIRIP6M_INNER_MAC;
+		else{
+			PMD_INIT_LOG(ERR, "invalid mac_addr_byte_mask");
+			return -EINVAL;
+		}
 
 		switch (info->mask.tunnel_type_mask) {
 		case 0:
-- 
2.7.5