netdev - Re: [PATCH v2] rtl8xxxu: Improve the A-MPDU retransmission rate with RTS/CTS protection

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Message-ID: <164002704874.16553.13864758889503854388.kvalo@kernel.org>
Date:   Mon, 20 Dec 2021 19:04:10 +0000 (UTC)
From:   Kalle Valo <kvalo@...nel.org>
To:     Chris Chiu <chris.chiu@...onical.com>
Cc:     Jes.Sorensen@...il.com, kvalo@...eaurora.org, davem@...emloft.net,
        kuba@...nel.org, code@...o-schneider.ch,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, Chris Chiu <chris.chiu@...onical.com>
Subject: Re: [PATCH v2] rtl8xxxu: Improve the A-MPDU retransmission rate with
 RTS/CTS protection

Chris Chiu <chris.chiu@...onical.com> wrote:

> The A-MPDU TX retransmission rate is always high (> 20%) even in a very
> clean environment. However, the vendor driver retransimission rate is
> < 10% in the same test bed. The difference is the vendor driver starts
> the A-MPDU TXOP with initial RTS/CTS handshake which is observed in the
> air capture and the TX descriptor. Since the driver does not know how
> many frames will be aggregated and the estimated duration, forcing the
> RTS/CTS protection for A-MPDU helps to lower the retransmission rate
> from > 20% to ~12% in the same test setup with the vendor driver.
> 
> Signed-off-by: Chris Chiu <chris.chiu@...onical.com>

Patch applied to wireless-drivers-next.git, thanks.

b250200e2ee4 rtl8xxxu: Improve the A-MPDU retransmission rate with RTS/CTS protection

-- 
https://patchwork.kernel.org/project/linux-wireless/patch/20211215085819.729345-1-chris.chiu@canonical.com/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches