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Re: [PATCH v2] wifi: rtw89: 8852b: adjust quota to avoid SER L1 caused by access null page

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On 4/26/23 00:16, Ping-Ke Shih wrote:


-----Original Message-----
From: Kalle Valo <kvalo@xxxxxxxxxx>
Sent: Wednesday, April 26, 2023 1:10 PM
To: Ping-Ke Shih <pkshih@xxxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx; Larry.Finger@xxxxxxxxxxxx; linux-wireless@xxxxxxxxxxxxxxx
Subject: Re: [PATCH v2] wifi: rtw89: 8852b: adjust quota to avoid SER L1 caused by access null page

Ping-Ke Shih <pkshih@xxxxxxxxxxx> writes:

Though SER can recover this case, traffic can get stuck for a while. Fix it
by adjusting page quota to avoid hardware access null page of CMAC/DMAC.

Fixes: a1cb097168fa ("wifi: rtw89: 8852b: configure DLE mem")
Fixes: 3e870b481733 ("wifi: rtw89: 8852b: add HFC quota arrays")
Cc: stable@xxxxxxxxxxxxxxx
Tested-by: Larry Finger <Larry.Finger@xxxxxxxxxxxx>
Link: https://github.com/lwfinger/rtw89/issues/226#issuecomment-1520776761
Link: https://github.com/lwfinger/rtw89/issues/240
Signed-off-by: Ping-Ke Shih <pkshih@xxxxxxxxxxx>
---
v2: add Fixes, Cc and Tested-by tags suggested by Larry.

Should this go to wireless tree for v6.4?


Yes, please take it to v6.4. People can get stable connection with this fix.

I agree.

Larry





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