From: Kalle Valo <kvalo@codeaurora.org>
To: "Linus Lüssing" <linus.luessing@c0d3.blue>
Cc: "Felix Fietkau" <nbd@nbd.name>,
"Sujith Manoharan" <c_manoha@qca.qualcomm.com>,
ath9k-devel@qca.qualcomm.com, linux-wireless@vger.kernel.org,
"David S . Miller" <davem@davemloft.net>,
"Jakub Kicinski" <kuba@kernel.org>,
"John W . Linville" <linville@tuxdriver.com>,
"Felix Fietkau" <nbd@openwrt.org>,
"Simon Wunderlich" <sw@simonwunderlich.de>,
"Sven Eckelmann" <sven@narfation.org>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
"Linus Lüssing" <ll@simonwunderlich.de>
Subject: Re: [PATCH 1/3] ath9k: add option to reset the wifi chip via debugfs
Date: Tue, 5 Oct 2021 14:27:48 +0000 (UTC) [thread overview]
Message-ID: <20211005142748.9B4DFC43460@smtp.codeaurora.org> (raw)
In-Reply-To: <20210914192515.9273-2-linus.luessing@c0d3.blue>
Linus Lüssing <linus.luessing@c0d3.blue> wrote:
> Sometimes, in yet unknown cases the wifi chip stops working. To allow a
> watchdog in userspace to easily and quickly reset the wifi chip, add the
> according functionality to userspace. A reset can then be triggered
> via:
>
> $ echo 1 > /sys/kernel/debug/ieee80211/phy0/ath9k/reset
>
> The number of user resets can further be tracked in the row "User reset"
> in the same file.
>
> So far people usually used "iw scan" to fix ath9k chip hangs from
> userspace. Which triggers the ath9k_queue_reset(), too. The reset file
> however has the advantage of less overhead, which makes debugging bugs
> within ath9k_queue_reset() easier.
>
> Signed-off-by: Linus Lüssing <ll@simonwunderlich.de>
> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2 patches applied to ath-next branch of ath.git, thanks.
053f9852b95e ath9k: add option to reset the wifi chip via debugfs
4925642d5412 ath9k: Fix potential interrupt storm on queue reset
--
https://patchwork.kernel.org/project/linux-wireless/patch/20210914192515.9273-2-linus.luessing@c0d3.blue/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
next prev parent reply other threads:[~2021-10-05 14:27 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-14 19:25 [PATCH 0/3] ath9k: interrupt fixes on queue reset Linus Lüssing
2021-09-14 19:25 ` [PATCH 1/3] ath9k: add option to reset the wifi chip via debugfs Linus Lüssing
2021-10-05 14:27 ` Kalle Valo [this message]
2021-09-14 19:25 ` [PATCH 2/3] ath9k: Fix potential interrupt storm on queue reset Linus Lüssing
2021-09-14 19:25 ` [PATCH 3/3] ath9k: Fix potential hw interrupt resume during reset Linus Lüssing
2021-09-15 9:48 ` Felix Fietkau
2021-09-15 19:18 ` Linus Lüssing
2021-09-14 19:53 ` [PATCH 0/3] ath9k: interrupt fixes on queue reset Toke Høiland-Jørgensen
2021-09-15 9:23 ` Linus Lüssing
2021-10-05 14:12 ` Linus Lüssing
2021-10-05 14:24 ` Kalle Valo
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