* NXM_OF_VLAN_TCI 4 2 2 8
* NXM_OF_IP_TOS 4 1 -- 5
* NXM_NX_IP_ECN 4 1 -- 5
+ * NXM_OF_IP_TTL 4 1 -- 5
* NXM_NX_IP_FRAG 4 1 1 8
* NXM_OF_IP_PROTO 4 2 -- 6
* NXM_OF_IPV6_SRC_W 4 16 16 36
* NXM_NX_REG_W(4) 4 4 4 12
* NXM_NX_TUN_ID_W 4 8 8 20
* -------------------------------------------
- * total 270
+ * total 275
*
* So this value is conservative.
*/