Re: [PATCH v2] net/mlx5: store rxq MTU at allocation time

[Dariusz Sosnowski <dsosnowski@nvidia.com>]

On Thu, Oct 30, 2025 at 11:21:55AM +0100, Dariusz Sosnowski wrote:
> Hi,
> 
> Thank you very much for applying the changes from last review.
> 
> On Thu, Oct 30, 2025 at 10:13:13AM +0100, a.schollmeyer@syseleven.de wrote:
> > From: Adrian Schollmeyer <a.schollmeyer@syseleven.de>
> > 
> > For shared Rx queues, equal MTU for all ports sharing queues is enforced
> > using mlx5_shared_rxq_match() to make sure, the memory allocated in the
> > Rx buffer is large enough. The check uses the MTU as reported by the
> > ports' private dev_data structs, which contain the MTU currently set for
> > the device. In case one port's MTU is altered after Rx queues are
> > allocated and then a second port joins the shared Rx queue with the old,
> > yet correct MTU, the check fails despite the fact that the Rx buffer
> > size is correct for both ports.
> > 
> > This patch adds a new entry to the Rx queue control structure that
> > captures the MTU at the time the Rx buffer was allocated, since this is
> > the relevant information that needs to be checked when a port joins a
> > shared Rx queue.
> > 
> > Fixes: 09c2555303be ("net/mlx5: support shared Rx queue")
> > Cc: stable@dpdk.org
> > 
> > Signed-off-by: Adrian Schollmeyer <a.schollmeyer@syseleven.de>
> 
> Acked-by: Dariusz Sosnowski <dsosnowski@nvidia.com>

One other thing, unrelated to the patch content.

Could you please change the state of previous versions of this patch
to "Superseded" in Patchwork?
This would be very helpful since it reduces the amount of patches to track.

This requires creating the account on Patchwork - https://patches.dpdk.org/

Best regards,
Dariusz Sosnowski