int (*flow_dump_done)(const struct dpif *dpif, void *state);
/* Performs the 'actions_len' bytes of actions in 'actions' on the Ethernet
- * frame specified in 'packet'. */
- int (*execute)(struct dpif *dpif, const struct nlattr *actions,
- size_t actions_len, const struct ofpbuf *packet);
+ * frame specified in 'packet' taken from the flow specified in the
+ * 'key_len' bytes of 'key'. ('key' is mostly redundant with 'packet', but
+ * it contains some metadata that cannot be recovered from 'packet', such
+ * as tun_id and in_port.) */
+ int (*execute)(struct dpif *dpif,
+ const struct nlattr *key, size_t key_len,
+ const struct nlattr *actions, size_t actions_len,
+ const struct ofpbuf *packet);
/* Retrieves 'dpif''s "listen mask" into '*listen_mask'. A 1-bit of value
* 2**X set in '*listen_mask' indicates that 'dpif' will receive messages