ixgbe/base: fix tunnelled UDP and TCP frames in flow director

All bits in FDIRTCPM and FDIRUDPM are set to 1 when
ixgbe_fdir_set_input_mask_82599 is called. Not settings these bits will cause
TCP and UDP packets to be filtered out when NVGRE or VXLAN mode is enabled.

Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>

diff --git a/drivers/net/ixgbe/base/ixgbe_82599.c b/drivers/net/ixgbe/base/ixgbe_82599.c
index d3d8c6f..90de625 100644 (file)
--- a/drivers/net/ixgbe/base/ixgbe_82599.c
+++ b/drivers/net/ixgbe/base/ixgbe_82599.c
@@ -1915,7 +1915,12 @@ s32 ixgbe_fdir_set_input_mask_82599(struct ixgbe_hw *hw,
                }
                IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIP6M, fdirip6m);
 
-               /* Set all bits in FDIRSIP4M and FDIRDIP4M cloud mode */
+               /* Set all bits in FDIRTCPM, FDIRUDPM, FDIRSIP4M and
+                * FDIRDIP4M in cloud mode to allow L3/L3 packets to
+                * tunnel.
+                */
+               IXGBE_WRITE_REG(hw, IXGBE_FDIRTCPM, 0xFFFFFFFF);
+               IXGBE_WRITE_REG(hw, IXGBE_FDIRUDPM, 0xFFFFFFFF);
                IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRDIP4M, 0xFFFFFFFF);
                IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIP4M, 0xFFFFFFFF);
        }