Re: [PATCH] virtio-net: introduce TSO limit feature

On Wed, Oct 15, 2025 at 12:29:13PM +0800, Jason Wang wrote:
> On Tue, Oct 14, 2025 at 4:59 PM Michael S. Tsirkin <[email protected]> wrote:
> >
> > thanks for the patch! yet something to improve.
> > I note issues only when encountered 1st time but please
> > do go and check all patch for each issue.
> >
> >
> > On Tue, Oct 14, 2025 at 12:22:43PM +0800, Jason Wang wrote:
> > > This patch introduces TSO limit feature which allows the device to
> > > advertise:
> > >
> > > - Maximum TCP length of a TSO packet or inner TSO packet when UDP
> > >   tunnel is support
> > > - Maximum number of segment that can be produced by the device after
> > >   segmentation of TSO or inner TSO packet of a UDP tunnel
> > >
> > > This is a must to implement TCP jumbogram, as networking stack needs
> > > to know the limitation of the device in order to produce TSO packet as
> > > large as possible.


Maybe you can provide an overview of how this all is used?
I am looking at tcp_fragment and I just do not see
where it looks at any device limits.

-- 
MST