diff mbox

[ovs-dev,v5,10/16] dpif-netdev: Implement conntrack flush interface.

Message ID 1469581096-42007-11-git-send-email-diproiettod@vmware.com
State Accepted
Headers show

Commit Message

Daniele Di Proietto July 27, 2016, 12:58 a.m. UTC 
New functions are implemented in the conntrack module to support this.

Signed-off-by: Daniele Di Proietto <diproiettod@vmware.com>
Acked-by: Flavio Leitner <fbl@sysclose.org>
---
 lib/conntrack.c   | 23 +++++++++++++++++++++++
 lib/conntrack.h   |  2 ++
 lib/dpif-netdev.c | 10 +++++++++-
 3 files changed, 34 insertions(+), 1 deletion(-)
diff mbox

Patch

diff --git a/lib/conntrack.c b/lib/conntrack.c
index 47214e1..15a9582 100644
--- a/lib/conntrack.c
+++ b/lib/conntrack.c
@@ -1173,3 +1173,26 @@  conntrack_dump_done(struct conntrack_dump *dump OVS_UNUSED)
 {
     return 0;
 }
+
+int
+conntrack_flush(struct conntrack *ct, const uint16_t *zone)
+{
+    unsigned i;
+
+    for (i = 0; i < CONNTRACK_BUCKETS; i++) {
+        struct conn *conn, *next;
+
+        ct_lock_lock(&ct->buckets[i].lock);
+        HMAP_FOR_EACH_SAFE(conn, next, node, &ct->buckets[i].connections) {
+            if (!zone || *zone == conn->key.zone) {
+                ovs_list_remove(&conn->exp_node);
+                hmap_remove(&ct->buckets[i].connections, &conn->node);
+                atomic_count_dec(&ct->n_conn);
+                delete_conn(conn);
+            }
+        }
+        ct_lock_unlock(&ct->buckets[i].lock);
+    }
+
+    return 0;
+}
diff --git a/lib/conntrack.h b/lib/conntrack.h
index 2f0680e..8802d35 100644
--- a/lib/conntrack.h
+++ b/lib/conntrack.h
@@ -83,6 +83,8 @@  int conntrack_dump_start(struct conntrack *, struct conntrack_dump *,
                          const uint16_t *pzone);
 int conntrack_dump_next(struct conntrack_dump *, struct ct_dpif_entry *);
 int conntrack_dump_done(struct conntrack_dump *);
+
+int conntrack_flush(struct conntrack *, const uint16_t *zone);
 
 /* 'struct ct_lock' is a wrapper for an adaptive mutex.  It's useful to try
  * different types of locks (e.g. spinlocks) */
diff --git a/lib/dpif-netdev.c b/lib/dpif-netdev.c
index 48861a2..5793995 100644
--- a/lib/dpif-netdev.c
+++ b/lib/dpif-netdev.c
@@ -4309,6 +4309,14 @@  dpif_netdev_ct_dump_done(struct dpif *dpif OVS_UNUSED,
     return err;
 }
 
+static int
+dpif_netdev_ct_flush(struct dpif *dpif, const uint16_t *zone)
+{
+    struct dp_netdev *dp = get_dp_netdev(dpif);
+
+    return conntrack_flush(&dp->conntrack, zone);
+}
+
 const struct dpif_class dpif_netdev_class = {
     "netdev",
     dpif_netdev_init,
@@ -4352,7 +4360,7 @@  const struct dpif_class dpif_netdev_class = {
     dpif_netdev_ct_dump_start,
     dpif_netdev_ct_dump_next,
     dpif_netdev_ct_dump_done,
-    NULL,                       /* ct_flush */
+    dpif_netdev_ct_flush,
 };
 
 static void