Re: [PATCH v2 0/3] virtio: Fixes for TX ring sizing and resize error reporting

[Paolo Abeni <pabeni@redhat.com>]

On 5/21/25 11:22 AM, Laurent Vivier wrote:
> This patch series contains two fixes and a cleanup for the virtio subsystem.
> 
> The first patch fixes an error reporting bug in virtio_ring's
> virtqueue_resize() function. Previously, errors from internal resize
> helpers could be masked if the subsequent re-enabling of the virtqueue
> succeeded. This patch restores the correct error propagation, ensuring that
> callers of virtqueue_resize() are properly informed of underlying resize
> failures.
> 
> The second patch does a cleanup of the use of '2+MAX_SKB_FRAGS'
> 
> The third patch addresses a reliability issue in virtio_net where the TX
> ring size could be configured too small, potentially leading to
> persistently stopped queues and degraded performance. It enforces a
> minimum TX ring size to ensure there's always enough space for at least one
> maximally-fragmented packet plus an additional slot.

@Michael: it's not clear to me if you prefer take this series via your
tree or if it should go via net. Please LMK, thanks!

Paolo