Re: [PATCH RESEND] netvsc: transfer lower device max tso size

[Jason Wang]

On Mon, Jul 28, 2025 at 11:19 PM Jakub Kicinski <kuba@xxxxxxxxxx> wrote:
>
> On Sun, 27 Jul 2025 20:01:26 -0700 Stephen Hemminger wrote:
> > On Wed, 23 Jul 2025 15:16:22 -0700
> > Jakub Kicinski <kuba@xxxxxxxxxx> wrote:
> > >
> > > > Actually, we had used the common bonding driver 9 years ago. But it's
> > > > replaced by this kernel/netvsc based "transparent" bonding mode. See
> > > > the patches listed below.
> > > >
> > > > The user mode bonding scripts were unstable, and difficult to deliver
> > > > & update for various distros. So Stephen developed the new "transparent"
> > > > bonding mode, which greatly improves the situation.
> > >
> > > I specifically highlighted systemd-networkd as the change in the user
> > > space landscape.
> >
> > Haiyang tried valiantly but getting every distro to do the right thing
> > with VF's bonding and hot plug was impossible to support.
>
> I understand, but I also don't want it to be an upstream Linux problem.
>
> Again, no other cloud provider seems to have this issue, AFAIU.
>

There's a failover module which is used by virtio-net now. Maybe
that's a good way for netvsc as well?

Thanks