Re: [PATCH v2] net/i40e: don't check link status on device start

[Thomas Monjalon <thomas@monjalon.net>]

16/01/2023 12:02, Su, Simei:
> From: David Marchand <david.marchand@redhat.com>
> > On Fri, Jan 13, 2023 at 2:51 PM Zhang, Helin <helin.zhang@intel.com> wrote:
> > > From: David Marchand <david.marchand@redhat.com>
> > > > On Fri, Jan 13, 2023 at 2:39 PM Zhang, Helin <helin.zhang@intel.com>
> > > > > From: David Marchand <david.marchand@redhat.com>
> > > > > > Hello i40e maintainers, John,
> > > > > >
> > > > > > On Mon, Jan 9, 2023 at 10:21 AM David Marchand
> > > > > > <david.marchand@redhat.com> wrote:
> > > > > > > On Tue, Jan 3, 2023 at 3:02 PM David Marchand
> > > > > > <david.marchand@redhat.com> wrote:
> > > > > > > > Hi i40e maintainers,
> > > > > > > >
> > > > > > > > On Tue, Dec 13, 2022 at 10:19 AM David Marchand
> > > > > > > > <david.marchand@redhat.com> wrote:
> > > > > > > > >
> > > > > > > > > The mentioned changes broke existing applications when the
> > > > > > > > > link status of i40e ports is down at the time the port is started.
> > > > > > > > > Revert those changes, the original issue will need a different fix.
> > > > > Hi David
> > > > >
> > > > > Does it break all the application or just a specific application?
> > > >
> > > > I don't see how it would not affect all applications seeing how the
> > > > original patch is dumb.
> > > >
> > > > > We may need to understand the issue you met, and try to fix it later.
> > > >
> > > > Just unplug the cable or fake a link down on your i40e port, start
> > > > your application or port, then plug the cable back.
> > > > The max frame size will never get applied to hw.
> > > 
> > > Got it, I will forward to a right expert to check. Thank you very much for
> > reaching out to us!
> > 
> > I hope I get a reply _soon_.
> > Or I will just apply those reverts.
> 
> If applying those reverts, some issues still exist on our side. I sent one patch to patchwork:
> https://patchwork.dpdk.org/project/dpdk/patch/20230116105318.19412-1-simei.su@intel.com/.
> You can try this patch to see whether it can solve the issue on your side.
> At the same time, on our side, we need to do regression test further to check if this patch will affect other
> cases, the regression takes some time.
> 
> Thanks,
> Simei

Simei, do you have any update in this thread?
Last reply was 3 weeks ago. I hope regression test don't take so much time.