From: Kalle Valo <kvalo@codeaurora.org>
To: Stanislaw Gruszka <sgruszka@redhat.com>
Cc: linux-wireless@vger.kernel.org, Felix Fietkau <nbd@nbd.name>,
Lorenzo Bianconi <lorenzo.bianconi@redhat.com>,
Ryder Lee <ryder.lee@mediatek.com>, Roy Luo <royluo@google.com>
Subject: Re: [PATCH 5.3] mt76: mt76x0e: don't use hw encryption for MT7630E
Date: Tue, 3 Sep 2019 13:49:17 +0000 (UTC) [thread overview]
Message-ID: <20190903134917.449E5602CA@smtp.codeaurora.org> (raw)
In-Reply-To: <1565703400-10623-1-git-send-email-sgruszka@redhat.com>
Stanislaw Gruszka <sgruszka@redhat.com> wrote:
> Since 41634aa8d6db ("mt76: only schedule txqs from the tx tasklet")
> I can observe firmware hangs on MT7630E on station mode: tx stop
> functioning after minor activity (rx keep working) and on module
> unload device fail to stop with messages:
>
> [ 5446.141413] mt76x0e 0000:06:00.0: TX DMA did not stop
> [ 5449.176764] mt76x0e 0000:06:00.0: TX DMA did not stop
>
> Loading module again results in failure to associate with AP.
> Only machine power off / power on cycle can make device work again.
>
> It's unclear why commit 41634aa8d6db causes the problem, but it is
> related to HW encryption. Since issue is a firmware hang, that is super
> hard to debug, just disable HW encryption as fix for the issue.
>
> Fixes: 41634aa8d6db ("mt76: only schedule txqs from the tx tasklet")
> Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Patch applied to wireless-drivers.git, thanks.
34b0e9b767bf mt76: mt76x0e: don't use hw encryption for MT7630E
--
https://patchwork.kernel.org/patch/11092283/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
prev parent reply other threads:[~2019-09-03 13:49 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-13 13:36 [PATCH 5.3] mt76: mt76x0e: don't use hw encryption for MT7630E Stanislaw Gruszka
2019-08-14 9:50 ` Lorenzo Bianconi
2019-08-15 10:09 ` Stanislaw Gruszka
2019-08-15 10:20 ` Felix Fietkau
2019-08-19 11:06 ` Stanislaw Gruszka
2019-08-20 10:31 ` Felix Fietkau
2019-08-20 11:24 ` Stanislaw Gruszka
2019-08-21 8:47 ` Stanislaw Gruszka
2019-08-21 9:03 ` Felix Fietkau
2019-08-21 10:40 ` Felix Fietkau
2019-08-21 11:22 ` Stanislaw Gruszka
2019-08-22 7:23 ` Felix Fietkau
2019-09-03 13:49 ` Kalle Valo [this message]
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