summaryrefslogtreecommitdiffstats
path: root/net/openvswitch/datapath.c
diff options
context:
space:
mode:
authorAndy Zhou <azhou@nicira.com>2014-09-15 19:37:25 -0700
committerPravin B Shelar <pshelar@nicira.com>2014-09-15 23:28:14 -0700
commit971427f353f3c42c8dcef62e7124440df68eb809 (patch)
tree7eed9ed50fe70cfc82ce33e12a13147ad0de580c /net/openvswitch/datapath.c
parent32ae87ff795781b7ceffc44b7c694c1bb206a266 (diff)
openvswitch: Add recirc and hash action.
Recirc action allows a packet to reenter openvswitch processing. currently openvswitch lookup flow for packet received and execute set of actions on that packet, with help of recirc action we can process/modify the packet and recirculate it back in openvswitch for another pass. OVS hash action calculates 5-tupple hash and set hash in flow-key hash. This can be used along with recirculation for distributing packets among different ports for bond devices. For example: OVS bonding can use following actions: Match on: bond flow; Action: hash, recirc(id) Match on: recirc-id == id and hash lower bits == a; Action: output port_bond_a Signed-off-by: Andy Zhou <azhou@nicira.com> Acked-by: Jesse Gross <jesse@nicira.com> Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Diffstat (limited to 'net/openvswitch/datapath.c')
-rw-r--r--net/openvswitch/datapath.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index 7e0819919b8..16cad14fa81 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -156,7 +156,7 @@ static struct datapath *get_dp(struct net *net, int dp_ifindex)
}
/* Must be called with rcu_read_lock or ovs_mutex. */
-static const char *ovs_dp_name(const struct datapath *dp)
+const char *ovs_dp_name(const struct datapath *dp)
{
struct vport *vport = ovs_vport_ovsl_rcu(dp, OVSP_LOCAL);
return vport->ops->get_name(vport);
@@ -2065,10 +2065,14 @@ static int __init dp_init(void)
pr_info("Open vSwitch switching datapath\n");
- err = ovs_internal_dev_rtnl_link_register();
+ err = action_fifos_init();
if (err)
goto error;
+ err = ovs_internal_dev_rtnl_link_register();
+ if (err)
+ goto error_action_fifos_exit;
+
err = ovs_flow_init();
if (err)
goto error_unreg_rtnl_link;
@@ -2101,6 +2105,8 @@ error_flow_exit:
ovs_flow_exit();
error_unreg_rtnl_link:
ovs_internal_dev_rtnl_link_unregister();
+error_action_fifos_exit:
+ action_fifos_exit();
error:
return err;
}
@@ -2114,6 +2120,7 @@ static void dp_cleanup(void)
ovs_vport_exit();
ovs_flow_exit();
ovs_internal_dev_rtnl_link_unregister();
+ action_fifos_exit();
}
module_init(dp_init);