datapath: Convert upcalls and ODP_EXECUTE to use AF_NETLINK socket layer.

[sliver-openvswitch.git] / lib / dpif.h

diff --git a/lib/dpif.h b/lib/dpif.h
index 390cf67..d25d20f 100644 (file)
--- a/lib/dpif.h
+++ b/lib/dpif.h
@@ -117,15 +117,21 @@ struct dpif_flow_stats {
 
 void dpif_flow_stats_format(const struct dpif_flow_stats *, struct ds *);
 
+enum dpif_flow_put_flags {
+    DPIF_FP_CREATE = 1 << 0,    /* Allow creating a new flow. */
+    DPIF_FP_MODIFY = 1 << 1,    /* Allow modifying an existing flow. */
+    DPIF_FP_ZERO_STATS = 1 << 2 /* Zero the stats of an existing flow. */
+};
+
 int dpif_flow_flush(struct dpif *);
-int dpif_flow_put(struct dpif *, int flags,
+int dpif_flow_put(struct dpif *, enum dpif_flow_put_flags,
                   const struct nlattr *key, size_t key_len,
                   const struct nlattr *actions, size_t actions_len,
                   struct dpif_flow_stats *);
 int dpif_flow_del(struct dpif *,
                   const struct nlattr *key, size_t key_len,
                   struct dpif_flow_stats *);
-int dpif_flow_get(const struct dpif *, int flags,
+int dpif_flow_get(const struct dpif *,
                   const struct nlattr *key, size_t key_len,
                   struct ofpbuf **actionsp, struct dpif_flow_stats *);
 
@@ -144,6 +150,13 @@ int dpif_flow_dump_done(struct dpif_flow_dump *);
 int dpif_execute(struct dpif *, const struct nlattr *actions,
                  size_t actions_len, const struct ofpbuf *);
 
+enum dpif_upcall_type {
+    DPIF_UC_MISS,               /* Miss in flow table. */
+    DPIF_UC_ACTION,             /* ODPAT_CONTROLLER action. */
+    DPIF_UC_SAMPLE,             /* Packet sampling. */
+    DPIF_N_UC_TYPES
+};
+
 /* A packet passed up from the datapath to userspace.
  *
  * If 'key' or 'actions' is nonnull, then it points into data owned by
@@ -152,17 +165,16 @@ int dpif_execute(struct dpif *, const struct nlattr *actions,
  * clients that exist so far.)
  */
 struct dpif_upcall {
-    uint32_t type;              /* One of _ODPL_*_NR. */
-
     /* All types. */
+    enum dpif_upcall_type type;
     struct ofpbuf *packet;      /* Packet data. */
     struct nlattr *key;         /* Flow key. */
     size_t key_len;             /* Length of 'key' in bytes. */
 
-    /* _ODPL_ACTION_NR only. */
+    /* DPIF_UC_ACTION only. */
     uint64_t userdata;          /* Argument to ODPAT_CONTROLLER. */
 
-    /* _ODPL_SFLOW_NR only. */
+    /* DPIF_UC_SAMPLE only. */
     uint32_t sample_pool;       /* # of sampling candidate packets so far. */
     struct nlattr *actions;     /* Associated flow actions. */
     size_t actions_len;