Date:   Thu, 9 Dec 2021 15:13:40 +0100
From:   Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
To:     Sven Eckelmann <sven@narfation.org>
Cc:     jwboyer@kernel.org, dwmw2@infradead.org, ben@decadent.org.uk,
        Felix Fietkau <nbd@nbd.name>, Deren Wu <Deren.Wu@mediatek.com>,
        Mark-YW Chen <Mark-YW.Chen@mediatek.com>,
        Sean Wang <sean.wang@mediatek.com>,
        Soul Huang <Soul.Huang@mediatek.com>,
        YN Chen <YN.Chen@mediatek.com>, KM Lin <km.lin@mediatek.com>,
        Robin Chiu <robin.chiu@mediatek.com>,
        CH Yeh <ch.yeh@mediatek.com>, Posh Sun <posh.sun@mediatek.com>,
        Eric Liang <Eric.Liang@mediatek.com>, jemele@google.com,
        linux-firmware <linux-firmware@kernel.org>,
        linux-wireless <linux-wireless@vger.kernel.org>,
        linux-mediatek <linux-mediatek@lists.infradead.org>,
        linux-kernel <linux-kernel@vger.kernel.org>,
        jf@simonwunderlich.de
Subject: Re: [PATCH] linux-firmware: update firmware for MT7921 WiFi device
Message-ID: <YbIPFIaya1vKF6bM@lore-desk>
References: <67f30cd5235e2065e6c20cfb4662e4ac72ef6395.1639037336.git.deren.wu@mediatek.com>
 <2314855.OJx0zA1Pyt@ripper>
 <3841963.FhVex8QpIh@ripper>
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> On Thursday, 9 December 2021 10:21:02 CET Sven Eckelmann wrote:
> > Tested-by: Sven Eckelmann <sven@narfation.org>
>=20
> I would like to retract this again because it seems like the firmware is =
now=20
> hanging all the time when the default runtime-pm/deep-sleep settings are =
used.
>=20
>     [  521.553436] mt7921e 0000:05:00.0: Message 40000002 (seq 12) timeout
>     [  521.559884] mt7921e 0000:05:00.0: chip reset
>     [  521.661983] mt7921e 0000:05:00.0: HW/SW Version: 0x8a108a10, Build=
 Time: 20211129210838a
>     [  521.661983]=20
>     [  521.684088] mt7921e 0000:05:00.0: WM Firmware Version: ____010000,=
 Build Time: 20211129210917
>     [  521.723561] mt7921e 0000:05:00.0: Firmware init done
>=20
> This doesn't seem to happen that often when I perform a
>=20
>    echo 0 > /sys/kernel/debug/ieee80211/phy0/mt76/runtime-pm
>    echo 0 > /sys/kernel/debug/ieee80211/phy0/mt76/deep-sleep
>=20
> before setting up the interfaces.
>=20
> But even then, on the first "ip link set up dev mon0" (not only for mon0 =
-=20
> also for wlan0/...) it will crash with:
>=20
>=20
>     [  806.731357] mt7921e 0000:05:00.0: Message 00000046 (seq 4) timeout
>     [  806.737730] mt7921e 0000:05:00.0: chip reset
> RTNETLINK answers: Connection timed out
>     [  806.867666] mt7921e 0000:05:00.0: HW/SW Version: 0x8a108a10, Build=
 Time: 20211129210838a
>     [  806.867666]=20
>     [  806.888441] mt7921e 0000:05:00.0: WM Firmware Version: ____010000,=
 Build Time: 20211129210917
>     [  806.928204] mt7921e 0000:05:00.0: Firmware init done
>=20
> But when I then set up the device again then it seems to work. This is th=
e=20
> case for monitor and managed interfaces.
>=20
> I've used commit 678071ef7029 ("mt76: mt7615: clear mcu error interrupt s=
tatus=20
> on mt7663") in mt76.git for this.=20

does it occur with an older fw?

Regards,
Lorenzo

>=20
> Kind regards,
> 	Sven


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