linux-kernel - Re: [PATCH] wcn36xx: handle connection loss indication

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Message-ID: <CAMZdPi8QdLwrWM5ghDNYTT2nxNJm=NgNkZGxYvbRGsYQFHGxXA@mail.gmail.com>
Date:   Wed, 1 Sep 2021 08:41:48 +0200
From:   Loic Poulain <loic.poulain@...aro.org>
To:     Benjamin Li <benl@...areup.com>
Cc:     Kalle Valo <kvalo@...eaurora.org>,
        "Bryan O'Donoghue" <bryan.odonoghue@...aro.org>,
        stable@...r.kernel.org, "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, wcn36xx@...ts.infradead.org,
        linux-wireless@...r.kernel.org,
        Network Development <netdev@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] wcn36xx: handle connection loss indication

Hi Benjamin,

On Wed, 1 Sept 2021 at 05:05, Benjamin Li <benl@...areup.com> wrote:
>
> Firmware sends delete_sta_context_ind when it detects the AP has gone
> away in STA mode. Right now the handler for that indication only handles
> AP mode; fix it to also handle STA mode.
>
> Cc: stable@...r.kernel.org
> Fixes: 8def9ec46a5f ("wcn36xx: Enable firmware link monitoring")

I think it's good to have but does it really fix the link monitoring issue?
Is the connection loss detected in this scenario:
- Connect to AP
- Force active mode (iw wlan0 set power_save off)
- Wait for no data activity
- HW shutdown the AP (AP leave)

Do you get any indication?

In this scenario, DB410C (wcn3620) does not report anything.

Regards,
Loic