struct ofp_match;
struct ofpbuf;
+/* This sequence number should be incremented whenever anything involving flows
+ * or the wildcarding of flows changes. This will cause build assertion
+ * failures in places which likely need to be updated. */
+#define FLOW_WC_SEQ 1
+
#define FLOW_N_REGS 4
BUILD_ASSERT_DECL(FLOW_N_REGS <= NXM_NX_MAX_REGS);
BUILD_ASSERT_DECL(sizeof(((struct flow *)0)->nd_target) == 16);
BUILD_ASSERT_DECL(sizeof(struct flow) == FLOW_SIG_SIZE + FLOW_PAD_SIZE);
+/* Remember to update FLOW_WC_SEQ when changing 'struct flow'. */
+BUILD_ASSERT_DECL(FLOW_SIG_SIZE == 116 && FLOW_WC_SEQ == 1);
+
int flow_extract(struct ofpbuf *, ovs_be64 tun_id, uint16_t in_port,
struct flow *);
void flow_extract_stats(const struct flow *flow, struct ofpbuf *packet,
#define FWW_ND_TARGET ((OVS_FORCE flow_wildcards_t) (1 << 11))
#define FWW_ALL ((OVS_FORCE flow_wildcards_t) (((1 << 12)) - 1))
+/* Remember to update FLOW_WC_SEQ when adding or removing FWW_*. */
+BUILD_ASSERT_DECL(FWW_ALL == ((1 << 12) - 1) && FLOW_WC_SEQ == 1);
+
/* Information on wildcards for a flow, as a supplement to "struct flow".
*
* Note that the meaning of 1-bits in 'wildcards' is opposite that of 1-bits in
uint16_t zero; /* Padding field set to zero. */
};
+/* Remember to update FLOW_WC_SEQ when updating struct flow_wildcards. */
+BUILD_ASSERT_DECL(sizeof(struct flow_wildcards) == 72 && FLOW_WC_SEQ == 1);
+
void flow_wildcards_init_catchall(struct flow_wildcards *);
void flow_wildcards_init_exact(struct flow_wildcards *);
bool flow_wildcards_has_extra(const struct flow_wildcards *,
const struct flow_wildcards *);
-uint32_t flow_wildcards_hash(const struct flow_wildcards *);
+uint32_t flow_wildcards_hash(const struct flow_wildcards *, uint32_t basis);
bool flow_wildcards_equal(const struct flow_wildcards *,
const struct flow_wildcards *);
uint32_t flow_hash_symmetric_l4(const struct flow *flow, uint32_t basis);
bool flow_wildcards_is_dl_dst_mask_valid(const uint8_t[6]);
flow_wildcards_t flow_wildcards_set_dl_dst_mask(flow_wildcards_t,
const uint8_t mask[6]);
+uint32_t flow_hash_fields(const struct flow *, enum nx_hash_fields,
+ uint16_t basis);
+const char *flow_hash_fields_to_str(enum nx_hash_fields);
+bool flow_hash_fields_valid(enum nx_hash_fields);
#endif /* flow.h */