Catalli's threaded switch

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

diff --git a/lib/dpif.h b/lib/dpif.h
index b171793..d6a0cde 100644 (file)
--- a/lib/dpif.h
+++ b/lib/dpif.h
@@ -18,10 +18,16 @@
 #ifndef DPIF_H
 #define DPIF_H 1
 
-#include "openvswitch/datapath-protocol.h"
 #include <stdbool.h>
 #include <stddef.h>
 #include <stdint.h>
+#include "openflow/openflow.h"
+#include "openvswitch/datapath-protocol.h"
+#include "util.h"
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
 
 struct dpif;
 struct ofpbuf;
@@ -30,6 +36,9 @@ struct dpif_class;
 
 void dp_run(void);
 void dp_wait(void);
+#ifdef THREADED
+void dp_start(void);
+#endif
 
 int dp_register_provider(const struct dpif_class *);
 int dp_unregister_provider(const char *type);
@@ -86,6 +95,14 @@ int dpif_execute(struct dpif *, uint16_t in_port,
                  const union odp_action[], size_t n_actions,
                  const struct ofpbuf *);
 
+/* Minimum number of bytes of headroom for a packet returned by dpif_recv()
+ * member function.  This headroom allows "struct odp_msg" to be replaced by
+ * "struct ofp_packet_in" without copying the buffer. */
+#define DPIF_RECV_MSG_PADDING (sizeof(struct ofp_packet_in) \
+                               - sizeof(struct odp_msg))
+BUILD_ASSERT_DECL(sizeof(struct ofp_packet_in) > sizeof(struct odp_msg));
+BUILD_ASSERT_DECL(DPIF_RECV_MSG_PADDING % 4 == 0);
+
 int dpif_recv_get_mask(const struct dpif *, int *listen_mask);
 int dpif_recv_set_mask(struct dpif *, int listen_mask);
 int dpif_get_sflow_probability(const struct dpif *, uint32_t *probability);
@@ -97,4 +114,11 @@ void dpif_recv_wait(struct dpif *);
 void dpif_get_netflow_ids(const struct dpif *,
                           uint8_t *engine_type, uint8_t *engine_id);
 
+int dpif_queue_to_priority(const struct dpif *, uint32_t queue_id,
+                           uint32_t *priority);
+
+#ifdef  __cplusplus
+}
+#endif
+
 #endif /* dpif.h */