Message-ID: <00a8fc90-a70e-7d53-609a-2b1db5b7590b@gmail.com>
Date:   Thu, 6 Jan 2022 20:59:59 +0300
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Subject: Re: rtw88: EDCCA makes Wi-Fi unusable with a USB 3.0 SSD connected
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To:     Pkshih <pkshih@realtek.com>,
        "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>,
        Kevin Yang <kevin_yang@realtek.com>
Cc:     Yan-Hsuan Chuang <tony0620emma@gmail.com>,
        Kalle Valo <kvalo@kernel.org>
References: <994addcb-a203-d718-fc92-c7f1d9ef05fb@gmail.com>
 <c1a47f94d9a7408e9891dd15ba177992@realtek.com>
From:   Alper Nebi Yasak <alpernebiyasak@gmail.com>
In-Reply-To: <c1a47f94d9a7408e9891dd15ba177992@realtek.com>
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On 06/01/2022 08:53, Pkshih wrote:
> I think you have sorted the problem that USB 3.0 is the interference source.
> Since the clock of USB 3.0 is 2.5G, so please try to connect a 5G AP to see if the 
> problem is still existing.

I don't have a standalone modem/router that can use 5GHz, but I managed
to create an AP from another laptop and connect to it. Pinging the
second laptop works fine at 5GHz (but pings are still late/dropped at
2.4GHz as expected).

> The adaptivity patch is to detect signal energy and stop to transmit if the 
> energy is over a threshold, and I think the USB 3.0 interference does.
> I will discuss internally how we can debug this symptom.

Thanks, feel free to ask for more information or testing if you need it.