+/* Flow structure with Ethernet specification. It is packed to prevent padding
+ * between attr and spec as this layout is expected by libibverbs. */
+struct flow_attr_spec_eth {
+ struct ibv_exp_flow_attr attr;
+ struct ibv_exp_flow_spec_eth spec;
+} __attribute__((packed));
+
+/* Define a struct flow_attr_spec_eth object as an array of at least
+ * "size" bytes. Room after the first index is normally used to store
+ * extra flow specifications. */
+#define FLOW_ATTR_SPEC_ETH(name, size) \
+ struct flow_attr_spec_eth name \
+ [((size) / sizeof(struct flow_attr_spec_eth)) + \
+ !!((size) % sizeof(struct flow_attr_spec_eth))]
+