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openvswitch: Allow each vport to have an array of 'port_id's.

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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>
This commit is contained in:
Alex Wang 2014-07-17 15:14:13 -07:00 • committed by Pravin B Shelar
parent f6e6753244
commit 5cd667b0a4
4 changed files with 148 additions and 16 deletions
Download patch file Download diff file Expand all files Collapse all files

13
include/uapi/linux/openvswitch.h
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@ -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
};