- * Since is it passed to kernel as u64, its size has to be 8 bytes. */
-struct user_action_cookie {
- uint8_t type; /* enum user_action_cookie_type. */
- uint8_t n_output; /* No of output ports. used by sflow. */
- ovs_be16 vlan_tci; /* Used by sFlow */
- uint32_t data; /* Data is len for OFPP_CONTROLLER action.
- For sFlow it is port_ifindex. */
+ * Since it is passed to kernel as u64, its size has to be 8 bytes. */
+union user_action_cookie {
+ uint16_t type; /* enum user_action_cookie_type. */
+
+ struct {
+ uint16_t type; /* USER_ACTION_COOKIE_SFLOW. */
+ ovs_be16 vlan_tci; /* Destination VLAN TCI. */
+ uint32_t output; /* SFL_FLOW_SAMPLE_TYPE 'output' value. */
+ } sflow;
+
+ struct {
+ uint16_t type; /* USER_ACTION_COOKIE_SLOW_PATH. */
+ uint16_t unused;
+ uint32_t reason; /* enum slow_path_reason. */
+ } slow_path;
+};
+BUILD_ASSERT_DECL(sizeof(union user_action_cookie) == 8);
+
+size_t odp_put_userspace_action(uint32_t pid,
+ const union user_action_cookie *,
+ struct ofpbuf *odp_actions);
+
+/* Reasons why a subfacet might not be fast-pathable. */
+enum slow_path_reason {
+ /* These reasons are mutually exclusive. */
+ SLOW_CFM = 1 << 0, /* CFM packets need per-packet processing. */
+ SLOW_LACP = 1 << 1, /* LACP packets need per-packet processing. */
+ SLOW_STP = 1 << 2, /* STP packets need per-packet processing. */
+ SLOW_IN_BAND = 1 << 3, /* In-band control needs every packet. */
+
+ /* Mutually exclusive with SLOW_CFM, SLOW_LACP, SLOW_STP.
+ * Could possibly appear with SLOW_IN_BAND. */
+ SLOW_CONTROLLER = 1 << 4, /* Packets must go to OpenFlow controller. */
+
+ /* This can appear on its own, or, theoretically at least, along with any
+ * other combination of reasons. */
+ SLOW_MATCH = 1 << 5, /* Datapath can't match specifically enough. */