@@ -2092,7 +2092,37 @@ netdev_init_flow_api(struct netdev *netdev)
{
const struct netdev_class *class = netdev->netdev_class;
+ if (!netdev_flow_api_enabled) {
+ return EOPNOTSUPP;
+ }
+
return (class->init_flow_api
? class->init_flow_api(netdev)
: EOPNOTSUPP);
}
+
+bool netdev_flow_api_enabled = false;
+
+#ifdef __linux__
+void
+netdev_set_flow_api_enabled(const struct smap *ovs_other_config)
+{
+ if (smap_get_bool(ovs_other_config, "hw-offload", false)) {
+ static struct ovsthread_once once = OVSTHREAD_ONCE_INITIALIZER;
+
+ if (ovsthread_once_start(&once)) {
+ netdev_flow_api_enabled = true;
+
+ VLOG_INFO("netdev: Flow API Enabled");
+
+ ovsthread_once_done(&once);
+ }
+ }
+}
+#else
+void
+netdev_set_flow_api_enabled(const struct smap *ovs_other_config OVS_UNUSED)
+{
+ netdev_flow_api_enabled = false;
+}
+#endif
@@ -178,6 +178,8 @@ int netdev_flow_get(struct netdev *, struct match *, struct nlattr **actions,
int netdev_flow_del(struct netdev *, const ovs_u128 *,
struct dpif_flow_stats *);
int netdev_init_flow_api(struct netdev *);
+extern bool netdev_flow_api_enabled;
+void netdev_set_flow_api_enabled(const struct smap *ovs_other_config);
/* native tunnel APIs */
/* Structure to pass parameters required to build a tunnel header. */
@@ -2953,6 +2953,7 @@ bridge_run(void)
cfg = ovsrec_open_vswitch_first(idl);
if (cfg) {
+ netdev_set_flow_api_enabled(&cfg->other_config);
dpdk_init(&cfg->other_config);
}
@@ -170,6 +170,17 @@
<p>
The default is 10000.
</p>
+ </column>
+
+ <column name="other_config" key="hw-offload"
+ type='{"type": "boolean"}'>
+ <p>
+ Set this value to <code>true</code> to enable netdev flow offload.
+ </p>
+ <p>
+ The default value is <code>false</code>. Changing this value requires
+ restarting the daemon
+ </p>
</column>
<column name="other_config" key="dpdk-init"