ixgbe: Add fdir support for SCTP on X550

X550 has HW support for SCTP flow director filters SCTP mask. This
patch adds it like we do for UDP and TCP.
Signed-off-by: Donald C Skidmore <donald.c.skidmore@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c

@@ -1766,6 +1766,16 @@ s32 ixgbe_fdir_set_input_mask_82599(struct ixgbe_hw *hw,
 	IXGBE_WRITE_REG(hw, IXGBE_FDIRTCPM, ~fdirtcpm);
 	IXGBE_WRITE_REG(hw, IXGBE_FDIRUDPM, ~fdirtcpm);
 
+	/* also use it for SCTP */
+	switch (hw->mac.type) {
+	case ixgbe_mac_X550:
+	case ixgbe_mac_X550EM_x:
+		IXGBE_WRITE_REG(hw, IXGBE_FDIRSCTPM, ~fdirtcpm);
+		break;
+	default:
+		break;
+	}
+
 	/* store source and destination IP masks (big-enian) */
 	IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIP4M,
 			     ~input_mask->formatted.src_ip[0]);

drivers/net/ethernet/intel/ixgbe/ixgbe_type.h

@@ -402,6 +402,7 @@ struct ixgbe_thermal_sensor_data {
 #define IXGBE_FDIRSIP4M 0x0EE40
 #define IXGBE_FDIRTCPM  0x0EE44
 #define IXGBE_FDIRUDPM  0x0EE48
+#define IXGBE_FDIRSCTPM	0x0EE78
 #define IXGBE_FDIRIP6M  0x0EE74
 #define IXGBE_FDIRM     0x0EE70