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From: "Medvedkin, Vladimir" <vladimir.medvedkin@intel.com>
To: Bruce Richardson <bruce.richardson@intel.com>, <dev@dpdk.org>
Subject: Re: [PATCH v2] net/intel: improve Rx descriptor ring size checks
Date: Tue, 27 Jan 2026 20:58:39 +0000	[thread overview]
Message-ID: <eaeaeb1b-16b1-42ed-9bba-69357833c9a4@intel.com> (raw)
In-Reply-To: <20251215184342.1722960-1-bruce.richardson@intel.com>

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(-)
>
<snip>

-- 
Regards,
Vladimir


  parent reply	other threads:[~2026-01-27 20:58 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-12-15 17:35 [PATCH] net/intel: improve Rx descriptor ring size checks Bruce Richardson
2025-12-15 17:54 ` Morten Brørup
2025-12-15 17:58   ` Bruce Richardson
2025-12-15 18:20     ` Bruce Richardson
2025-12-15 18:53       ` Morten Brørup
2025-12-16  8:48         ` Bruce Richardson
2025-12-16  9:25           ` Morten Brørup
2025-12-16  9:52             ` Bruce Richardson
2025-12-16 10:48               ` Morten Brørup
2025-12-15 18:43 ` [PATCH v2] " Bruce Richardson
2026-01-09 16:39   ` Bruce Richardson
2026-01-27 20:58   ` Medvedkin, Vladimir [this message]
2026-01-29 11:42     ` Bruce Richardson

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