[dpdk-stable] [PATCH v2] net/ixgbe: fix mask bits register set error for FDIR

[Wei Zhao]

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, it also support other mask
like 0xF and so on.

Fixes: 82fb702077f6 ("ixgbe: support new flow director modes for X550")

Signed-off-by: Wei Zhao <wei.zhao1 at intel.com>
---

v2:
-change mask bits set method to support more mac mask.

---
 drivers/net/ixgbe/ixgbe_fdir.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ixgbe/ixgbe_fdir.c b/drivers/net/ixgbe/ixgbe_fdir.c
index 3feb815..dea8862 100644
--- a/drivers/net/ixgbe/ixgbe_fdir.c
+++ b/drivers/net/ixgbe/ixgbe_fdir.c
@@ -394,9 +394,9 @@ 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;
+		fdiripv6m &= ~((mac_mask << IXGBE_FDIRIP6M_INNER_MAC_SHIFT) &
+				IXGBE_FDIRIP6M_INNER_MAC);
 
 		switch (info->mask.tunnel_type_mask) {
 		case 0:
-- 
2.7.5