vlandev: Fix an obvious predicate logic crash bug.

Signed-off-by: ZhengLingyun <konghuarukhr@163.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
SubmittingPatches: Rename to CONTRIBUTING.

This makes the GitHub interface aware of the contribution guidelines,
so it will be displayed to contributors when they submit issues or pull
requests.

Signed-off-by: Joe Stringer <joestringer@nicira.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
tests: Skip queue limit tests if the queues are very large.

This should prevent timing out.

Reported-by: Andrey Korolyov <andrey@xdel.ru>
Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Alex Wang <alexw@nicira.com>
netflow: Correctly track flow creation time.

'created' is supposed to be the time the flow was created, but it was
getting reset to zero on every expiration, causing the flow start time to
be wonky after the first active expiration on a flow.

Reported-by: Lior Neudorfer <lior@guardicore.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
AUTHORS: Add Lior Neudorfer <lior@guardicore.com>.

Signed-off-by: Ben Pfaff <blp@nicira.com>
netdev: Add 'change_seq' back to netdev.

This commit can be seen as a partial revert of commit
da4a619179d (netdev: Globally track port status changes)
by adding the 'change_seq' to 'struct netdev'.

Signed-off-by: Alex Wang <alexw@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
netdev-dpdk: Indicate the change of etheraddr and mtu.

This commit makes the netdev-dpdk module signal the change of
etheraddr and mtu by changing the global sequence number and
incrementing its 'change_seq'.

Signed-off-by: Alex Wang <alexw@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
ofproto: Use netdev's 'change_seq' to reduce port modification check.

This commit uses the 'change_seq' in 'struct netdev' to determine
whether to update the 'ofport'.  This helps eliminate unnecessary
update.

In the experiment of configuring 5K internal port, there is neither
observable configuration overhead nor additional cpu consumption
after configuration finishes.  When one internal port state is
flapped every 0.3 second, this commit reduces the cpu utilization
of ovs-vswitchd thread from 40 to 12.

Signed-off-by: Alex Wang <alexw@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
openflow-1.1.h: improve struct ofp11_group_stats definition

Uncomment bucket_stats definition in struct ofp11_group_stats
to better match OpenFlow spec 1.1's definition on page 48.

Signed-off-by: Andy Zhou <azhou@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
openflow-1.3.h: improve struct ofp13_group_stats definition

Uncomment bucket_stats definition in struct ofp13_group_stats
to better match OpenFlow spec 1.3.3's definition on page 91.

Signed-off-by: Andy Zhou <azhou@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
ofp-util.c: Simplify ofputil_group_stats_to_* functions.

Signed-off-by: Andy Zhou <azhou@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>