ofproto-dpif: Modularize mirror code.

This code modularizes ofproto-dpif's mirror code by moving it to
ofproto-dpif-mirror.  Not only does this shorten ofproto-dpif and
hide complexity, but its also necessary for future patches which
modularize ofproto-dpif-xlate in preparation for multi-threading.

Signed-off-by: Ethan Jackson <ethan@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>

1 files changed, 61 insertions, 0 deletions

diff --git a/ofproto/ofproto-dpif-mirror.h b/ofproto/ofproto-dpif-mirror.h
new file mode 100644
index 000000000..4a6f3cebd
--- /dev/null
+++ b/ofproto/ofproto-dpif-mirror.h
@@ -0,0 +1,61 @@
+/* Copyright (c) 2013 Nicira, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License. */
+
+#ifndef OFPROT_DPIF_MIRROR_H
+#define OFPROT_DPIF_MIRROR_H 1
+
+#include <stdint.h>
+
+#include "util.h"
+
+#define MAX_MIRRORS 32
+typedef uint32_t mirror_mask_t;
+
+struct ofproto_dpif;
+struct ofbundle;
+
+struct mbridge *mbridge_create(void);
+struct mbridge *mbridge_ref(const struct mbridge *);
+void mbridge_unref(struct mbridge *);
+bool mbridge_has_mirrors(struct mbridge *);
+bool mbridge_need_revalidate(struct mbridge *);
+
+void mbridge_register_bundle(struct mbridge *, struct ofbundle *);
+void mbridge_unregister_bundle(struct mbridge *, struct ofbundle *);
+
+mirror_mask_t mirror_bundle_out(struct mbridge *, struct ofbundle *);
+mirror_mask_t mirror_bundle_src(struct mbridge *, struct ofbundle *);
+mirror_mask_t mirror_bundle_dst(struct mbridge *, struct ofbundle *);
+
+int mirror_set(struct mbridge *, void *aux, const char *name,
+               struct ofbundle **srcs, size_t n_srcs,
+               struct ofbundle **dsts, size_t n_dsts,
+               unsigned long *src_vlans, struct ofbundle *out_bundle,
+               uint16_t out_vlan);
+void mirror_destroy(struct mbridge *, void *aux);
+int mirror_get_stats(struct mbridge *, void *aux, uint64_t *packets,
+                     uint64_t *bytes);
+void mirror_update_stats(struct mbridge*, mirror_mask_t, uint64_t packets,
+                         uint64_t bytes);
+bool mirror_get(struct mbridge *, int index, unsigned long **vlans,
+                mirror_mask_t *dup_mirrors, struct ofbundle **out,
+                int *out_vlan);
+
+static inline int
+mirror_mask_ffs(mirror_mask_t mask)
+{
+    BUILD_ASSERT_DECL(sizeof(unsigned int) >= sizeof(mask));
+    return ffs(mask);
+}
+#endif /* ofproto-dpif-mirror.h */