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Subject: Re: [PATCH v2] rtl8xxxu: Improve the A-MPDU retransmission rate with
 RTS/CTS protection
From:   Kalle Valo <kvalo@kernel.org>
In-Reply-To: <20211215085819.729345-1-chris.chiu@canonical.com>
References: <20211215085819.729345-1-chris.chiu@canonical.com>
To:     Chris Chiu <chris.chiu@canonical.com>
Cc:     Jes.Sorensen@gmail.com, kvalo@codeaurora.org, davem@davemloft.net,
        kuba@kernel.org, code@reto-schneider.ch,
        linux-wireless@vger.kernel.org, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org, Chris Chiu <chris.chiu@canonical.com>
User-Agent: pwcli/0.1.0-git (https://github.com/kvalo/pwcli/) Python/3.7.3
Message-ID: <164002704874.16553.13864758889503854388.kvalo@kernel.org>
Date:   Mon, 20 Dec 2021 19:04:10 +0000 (UTC)
Precedence: bulk

Chris Chiu <chris.chiu@canonical.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@canonical.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