From: Paul Blakey <pa...@mellanox.com> Add a new configuration option - hw-offload that enables netdev flow api. Enabling this option will allow offloading flows using netdev implementation instead of the kernel datapath. This configuration option defaults to false - disabled.
Signed-off-by: Paul Blakey <pa...@mellanox.com> Reviewed-by: Roi Dayan <r...@mellanox.com> --- lib/netdev.c | 26 ++++++++++++++++++++++++++ lib/netdev.h | 2 ++ vswitchd/bridge.c | 1 + vswitchd/vswitch.xml | 11 +++++++++++ 4 files changed, 40 insertions(+) diff --git a/lib/netdev.c b/lib/netdev.c index 45ea7d2..ca727a5 100644 --- a/lib/netdev.c +++ b/lib/netdev.c @@ -2092,7 +2092,33 @@ 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; + +void +netdev_set_flow_api_enabled(const struct smap *ovs_other_config) +{ +#ifdef __linux__ + 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 + netdev_flow_api_enabled = false; +#endif +} diff --git a/lib/netdev.h b/lib/netdev.h index 8638bfd..d7d4199 100644 --- a/lib/netdev.h +++ b/lib/netdev.h @@ -178,6 +178,8 @@ int netdev_flow_get(struct netdev *, struct match *, struct nlattr **actions, int netdev_flow_del(struct netdev *, struct dpif_flow_stats *, const ovs_u128 *); 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. */ diff --git a/vswitchd/bridge.c b/vswitchd/bridge.c index 21c3c79..48fbd1d 100644 --- a/vswitchd/bridge.c +++ b/vswitchd/bridge.c @@ -2937,6 +2937,7 @@ bridge_run(void) cfg = ovsrec_open_vswitch_first(idl); if (cfg) { + netdev_set_flow_api_enabled(&cfg->other_config); dpdk_init(&cfg->other_config); } diff --git a/vswitchd/vswitch.xml b/vswitchd/vswitch.xml index 146a816..942e68f 100644 --- a/vswitchd/vswitch.xml +++ b/vswitchd/vswitch.xml @@ -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" -- 2.7.4 _______________________________________________ dev mailing list d...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-dev