Re: [PATCH iwl-net 1/3] ice: remove af_xdp_zc_qps bitmap

[Simon Horman]

On Wed, May 15, 2024 at 06:02:14PM +0200, Larysa Zaremba wrote:
> Referenced commit has introduced a bitmap to distinguish between ZC and
> copy-mode AF_XDP queues, because xsk_get_pool_from_qid() does not do this
> for us.
> 
> The bitmap would be especially useful when restoring previous state after
> rebuild, if only it was not reallocated in the process. This leads to e.g.
> xdpsock dying after changing number of queues.
> 
> Instead of preserving the bitmap during the rebuild, remove it completely
> and distinguish between ZC and copy-mode queues based on the presence of
> a device associated with the pool.
> 
> Fixes: e102db780e1c ("ice: track AF_XDP ZC enabled queues in bitmap")
> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@xxxxxxxxx>
> Signed-off-by: Larysa Zaremba <larysa.zaremba@xxxxxxxxx>

Reviewed-by: Simon Horman <horms@xxxxxxxxxx>