This patch does not change any functionality.
Signed-off-by: Pravin B Shelar <pshe...@nicira.com>
---
lib/dpif.c | 5 +++++
lib/dpif.h | 23 +++++++++++++++++++++++
2 files changed, 28 insertions(+)
diff --git a/lib/dpif.c b/lib/dpif.c
index 6649176..dc1e8c0 100644
--- a/lib/dpif.c
+++ b/lib/dpif.c
@@ -56,6 +56,11 @@ COVERAGE_DEFINE(dpif_execute);
COVERAGE_DEFINE(dpif_purge);
COVERAGE_DEFINE(dpif_execute_with_help);
+int
+(*fn_ofproto_flow_lookup)(const void *data, struct ofpbuf *packet,
+ struct flow *flow,
+ struct flow_wildcards *wc, struct ofpbuf *odp_actions);
+
static const struct dpif_class *base_dpif_classes[] = {
#ifdef __linux__
&dpif_linux_class,
diff --git a/lib/dpif.h b/lib/dpif.h
index e7aca8e..7c6a241 100644
--- a/lib/dpif.h
+++ b/lib/dpif.h
@@ -653,6 +653,29 @@ void dpif_get_netflow_ids(const struct dpif *,
int dpif_queue_to_priority(const struct dpif *, uint32_t queue_id,
uint32_t *priority);
+/* Classifier lookup callback.
+ *
+ * ofproto layer can set miss upcall handler for dpif implementation to
+ * use. dpif-implementation can use this callback to lookup a flow.
+ * This way dipf can avoid asynchronous flow-miss handling and can
+ * handle flow-table-miss in same thread.
+ *
+ * 'data' is handle_miss_data passed to dpif-open call.
+ * 'packet' packet received.
+ * 'flow' flow corresponding to packet.
+ *
+ * On success lookup callback function returns 0 and populate *wc and
odp_actions.
+ *
+ * ofproto layer should prepare to accept callback immediately after setting
+ * this pointer.
+ * To keep it simple no locks should be held by dpif-implementation over
+ * this call invocation. */
+
+extern int
+(*fn_ofproto_flow_lookup)(const void *data, struct ofpbuf *packet,
+ struct flow *flow,
+ struct flow_wildcards *wc, struct ofpbuf
*odp_actions);
+
#ifdef __cplusplus
}
#endif
--
1.7.9.5
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