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authorAlex Wang <alexw@nicira.com>2014-07-17 15:14:13 -0700
committerPravin B Shelar <pshelar@nicira.com>2014-07-24 01:15:04 -0700
commit5cd667b0a4567048bb555927d6ee564f4e5620a9 (patch)
tree34fc874b8e4e7ad420c25712bcc62039ede0337a /include/uapi
parentf6e675324481c56b358091ddb446b2c95a8e047b (diff)
openvswitch: Allow each vport to have an array of 'port_id's.
In order to allow handlers directly read upcalls from datapath, we need to support per-handler netlink socket for each vport in datapath. This commit makes this happen. Also, it is guaranteed to be backward compatible with previous branch. Signed-off-by: Alex Wang <alexw@nicira.com> Acked-by: Thomas Graf <tgraf@redhat.com> Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Diffstat (limited to 'include/uapi')
-rw-r--r--include/uapi/linux/openvswitch.h13
1 files changed, 9 insertions, 4 deletions
diff --git a/include/uapi/linux/openvswitch.h b/include/uapi/linux/openvswitch.h
index 0b979ee4bfc0..a794d1dd7b40 100644
--- a/include/uapi/linux/openvswitch.h
+++ b/include/uapi/linux/openvswitch.h
@@ -118,6 +118,9 @@ struct ovs_vport_stats {
/* Allow last Netlink attribute to be unaligned */
#define OVS_DP_F_UNALIGNED (1 << 0)
+/* Allow datapath to associate multiple Netlink PIDs to each vport */
+#define OVS_DP_F_VPORT_PIDS (1 << 1)
+
/* Fixed logical ports. */
#define OVSP_LOCAL ((__u32)0)
@@ -203,9 +206,10 @@ enum ovs_vport_type {
* this is the name of the network device. Maximum length %IFNAMSIZ-1 bytes
* plus a null terminator.
* @OVS_VPORT_ATTR_OPTIONS: Vport-specific configuration information.
- * @OVS_VPORT_ATTR_UPCALL_PID: The Netlink socket in userspace that
- * OVS_PACKET_CMD_MISS upcalls will be directed to for packets received on
- * this port. A value of zero indicates that upcalls should not be sent.
+ * @OVS_VPORT_ATTR_UPCALL_PID: The array of Netlink socket pids in userspace
+ * among which OVS_PACKET_CMD_MISS upcalls will be distributed for packets
+ * received on this port. If this is a single-element array of value 0,
+ * upcalls should not be sent.
* @OVS_VPORT_ATTR_STATS: A &struct ovs_vport_stats giving statistics for
* packets sent or received through the vport.
*
@@ -228,7 +232,8 @@ enum ovs_vport_attr {
OVS_VPORT_ATTR_TYPE, /* u32 OVS_VPORT_TYPE_* constant. */
OVS_VPORT_ATTR_NAME, /* string name, up to IFNAMSIZ bytes long */
OVS_VPORT_ATTR_OPTIONS, /* nested attributes, varies by vport type */
- OVS_VPORT_ATTR_UPCALL_PID, /* u32 Netlink PID to receive upcalls */
+ OVS_VPORT_ATTR_UPCALL_PID, /* array of u32 Netlink socket PIDs for */
+ /* receiving upcalls */
OVS_VPORT_ATTR_STATS, /* struct ovs_vport_stats */
__OVS_VPORT_ATTR_MAX
};