vhost: introduce vDPA device class

[dpdk.git] / lib / librte_mbuf / rte_mbuf_core.h

diff --git a/lib/librte_mbuf/rte_mbuf_core.h b/lib/librte_mbuf/rte_mbuf_core.h
index b9a59c8..16600f1 100644 (file)
--- a/lib/librte_mbuf/rte_mbuf_core.h
+++ b/lib/librte_mbuf/rte_mbuf_core.h
@@ -12,6 +12,8 @@
  * packet offload flags and some related macros.
  * For majority of DPDK entities, it is not recommended to include
  * this file directly, use include <rte_mbuf.h> instead.
+ *
+ * New fields and flags should fit in the "dynamic space".
  */
 
 #include <stdint.h>
@@ -521,11 +523,12 @@ struct rte_mbuf {
        RTE_STD_C11
        union {
                uint32_t packet_type; /**< L2/L3/L4 and tunnel information. */
+               __extension__
                struct {
-                       uint32_t l2_type:4; /**< (Outer) L2 type. */
-                       uint32_t l3_type:4; /**< (Outer) L3 type. */
-                       uint32_t l4_type:4; /**< (Outer) L4 type. */
-                       uint32_t tun_type:4; /**< Tunnel type. */
+                       uint8_t l2_type:4;   /**< (Outer) L2 type. */
+                       uint8_t l3_type:4;   /**< (Outer) L3 type. */
+                       uint8_t l4_type:4;   /**< (Outer) L4 type. */
+                       uint8_t tun_type:4;  /**< Tunnel type. */
                        RTE_STD_C11
                        union {
                                uint8_t inner_esp_next_proto;
@@ -541,7 +544,7 @@ struct rte_mbuf {
                                        /**< Inner L3 type. */
                                };
                        };
-                       uint32_t inner_l4_type:4; /**< Inner L4 type. */
+                       uint8_t inner_l4_type:4; /**< Inner L4 type. */
                };
        };