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Subject: Re: [PATCH] wcn36xx: Use correct SSN for ADD BA request
From:   Kalle Valo <kvalo@codeaurora.org>
In-Reply-To: <1637604251-11763-1-git-send-email-loic.poulain@linaro.org>
References: <1637604251-11763-1-git-send-email-loic.poulain@linaro.org>
To:     Loic Poulain <loic.poulain@linaro.org>
Cc:     linux-wireless@vger.kernel.org, wcn36xx@lists.infradead.org,
        Loic Poulain <loic.poulain@linaro.org>
User-Agent: pwcli/0.1.0-git (https://github.com/kvalo/pwcli/) Python/3.7.3
Message-ID: <163792197409.23943.7303108798447763543.kvalo@codeaurora.org>
Date:   Fri, 26 Nov 2021 10:19:37 +0000 (UTC)
Precedence: bulk

Loic Poulain <loic.poulain@linaro.org> wrote:

> Since firmware uses its own sequence number counters, we need to
> use firmware number as well when mac80211 generates the ADD_BA
> request packet. Indeed the firmware sequence counters tend to
> slightly drift from the mac80211 ones because of firmware offload
> features like ARP responses. This causes the starting sequence
> number field of the ADD_BA request to be unaligned, and can possibly
> cause issues with strict/picky APs.
> 
> To fix this, we retrieve the current firmware sequence number for
> a given TID through the smd_trigger_ba API, and use that number as
> replacement of the mac80211 starting sequence number.
> 
> This change also ensures that any issue in the smd *ba procedures
> will cause the ba action to properly fail, and remove useless call
> to smd_trigger_ba() from IEEE80211_AMPDU_RX_START.
> 
> Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

Patch applied to ath-next branch of ath.git, thanks.

23cddeb5a770 wcn36xx: Use correct SSN for ADD BA request

-- 
https://patchwork.kernel.org/project/linux-wireless/patch/1637604251-11763-1-git-send-email-loic.poulain@linaro.org/

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