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Date:   Tue, 11 Apr 2023 14:48:36 +0200
From:   "s.hauer@pengutronix.de" <s.hauer@pengutronix.de>
To:     "petter@technux.se" <petter@technux.se>
Cc:     "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>,
        "pkshih@realtek.com" <pkshih@realtek.com>,
        "tony0620emma@gmail.com" <tony0620emma@gmail.com>
Subject: Re: rtw88: rtw8822cu (LM842) -> failed to get tx report from firmware
Message-ID: <20230411124836.GM19113@pengutronix.de>
References: <188007.70407276-sendEmail@petterwork>
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On Thu, Apr 06, 2023 at 10:41:20AM +0000, petter@technux.se wrote:
> Hi,
> 
> I have seen a very similar issue as Andreas. It was found when
> streaming a mender file (using mender install <url> from my arm
> device. But I have also managed to reproduce a similar issue by
> flooding the interface using iperf. 
> 
> on target:
> $ sudo iperf -s -u
> 
> On host:
> $ iperf -c <ip> -u -b 200M -t 300
> 
> Then it will almost instantly get problems causing the lm842 dongle to stop working.

I just gave it a try. This works here.

Which Kernel version do you use? Do you have:

709f329ea51c2 wifi: rtw88: usb: drop now unnecessary URB size check
b30dbecf891fb wifi: rtw88: usb: send Zero length packets if necessary
3bcc9db63336e wifi: rtw88: usb: Set qsel correctly

They are contained in v6.2.2 and v6.3-rc1, but not in v6.2.

Also you need these, but you already mentioned you have them:

https://patchwork.kernel.org/project/linux-wireless/patch/20230404072508.578056-2-s.hauer@pengutronix.de/

Sascha

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