netdev - Re: [PATCH net-next v15] openvswitch: enable NSH support

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Date:   Thu, 2 Nov 2017 20:09:17 +0800
From:   "Yang, Yi" <yi.y.yang@...el.com>
To:     Pravin Shelar <pshelar@....org>
Cc:     Linux Kernel Network Developers <netdev@...r.kernel.org>,
        ovs dev <dev@...nvswitch.org>, Jiri Benc <jbenc@...hat.com>,
        Eric Garver <e@...g.me>,
        "David S. Miller" <davem@...emloft.net>
Subject: Re: [PATCH net-next v15] openvswitch: enable NSH support

On Thu, Nov 02, 2017 at 05:06:47AM -0700, Pravin Shelar wrote:
> On Wed, Nov 1, 2017 at 7:50 PM, Yang, Yi <yi.y.yang@...el.com> wrote:
> > On Thu, Nov 02, 2017 at 08:52:40AM +0800, Pravin Shelar wrote:
> >> On Tue, Oct 31, 2017 at 9:03 PM, Yi Yang <yi.y.yang@...el.com> wrote:
> >> >
> >> > OVS master and 2.8 branch has merged NSH userspace
> >> > patch series, this patch is to enable NSH support
> >> > in kernel data path in order that OVS can support
> >> > NSH in compat mode by porting this.
> >> >
> >> > Signed-off-by: Yi Yang <yi.y.yang@...el.com>
> >> > ---
> >> I have comment related to checksum, otherwise patch looks good to me.
> >
> > Pravin, thank you for your comments, the below part is incremental patch
> > for checksum, please help check it, I'll send out v16 with this after
> > you confirm.
> >
> This change looks good to me.
> I noticed couple of more issues.
> 1. Can you move the ovs_key_nsh to the union of ipv4 an ipv6?
> ipv4/ipv6/nsh key data is mutually exclusive so there is no need for
> separate space for nsh key in the ovs key.
> 2. We need to fix match_validate() with nsh check. Datapath can not
> allow any l3 or l4 match if the flow key contains nsh match and
> vice-versa. such flow key should be rejected.

Ok, I'll fix them ASAP.