[ovs-dev] [PATCH] netdev-linux: fix bug of ovs ingress policing with linux tc

Ben Pfaff blp at nicira.com
Thu Aug 20 05:03:53 UTC 2015

On Thu, Aug 20, 2015 at 11:29:07AM +0800, ychen wrote:
> port's ingress qdisc rule will automatically disappeared after
> the following steps:
> 1)use ip tuntap to create port tapA and tapB
> 2)set tapA and tapB to ingress qdisc with linux tc command
> 3)add tapA to ovs bridge
> 4)add tapB to the same ovs bridge(ingress rule disappear for tapA)
> ingress_policing_rate equals to 0 means disable ingress policing,
> so set flag VALID_POLICING only when this paramter is effective,
> and before send deleteing ingress qdisc message to kernel, first check
> whether need to do this action. if settings not changed or policing is not
> enabled with ingress_policing_rate equal to 0, do not send any message.
> when interface's MAC,MTU,link state changed, there will be a RTM_NETLINK 
> message from kernel, and keep the flag VALID_POLICING as it is.

I'm still not going to take this.  As I said before, I don't see how
this solves the problem described in
http://openvswitch.org/pipermail/discuss/2015-May/017687.html.  I don't
see much value in just tweaking the parameters of the problem.

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