Re: [PATCH v2] net/intel: improve Rx descriptor ring size checks

[Bruce Richardson <bruce.richardson@intel.com>]

On Tue, Jan 27, 2026 at 08:58:39PM +0000, Medvedkin, Vladimir wrote:
> Acked-by: Vladimir Medvedkin <vladimir.medvedkin@intel.com>
> 
> On 12/15/2025 6:43 PM, Bruce Richardson wrote:
> > The default Rx ring size checks did not account for the fact that the
> > port would not work correctly if the Rx ring size was only twice the
> > free threshold size or less, so add in a new check for this. This would
> > generally only apply in cases where very small rings sizes are being
> > used, for example, with default Rx free thresh of 32, only ring size of
> > 64 would cause issues.
> > 
> > Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
> > ---
> > v2: add in extra error message for the small queue size case, to help
> >      make users aware of what setting they need to use to fix things.
> > ---
> >   drivers/net/intel/cpfl/cpfl_rxtx.c   | 10 ++++++++++
> >   drivers/net/intel/i40e/i40e_rxtx.c   | 10 ++++++++++
> >   drivers/net/intel/iavf/iavf_rxtx.c   | 23 ++++++++---------------
> >   drivers/net/intel/ice/ice_rxtx.c     | 10 ++++++++++
> >   drivers/net/intel/idpf/idpf_rxtx.c   | 10 ++++++++++
> >   drivers/net/intel/ixgbe/ixgbe_rxtx.c | 10 ++++++++++
> >   6 files changed, 58 insertions(+), 15 deletions(-)
> > 

Applied to dpdk-next-net-intel