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From: Ben Greear <greearb@candelatech.com>
To: Brandon Nielsen <nielsenb@jetfuse.net>, linux-wireless@vger.kernel.org
Subject: Re: iwlwifi: AX201 not using 2 receive streams
Date: Tue, 11 Jan 2022 12:02:51 -0800	[thread overview]
Message-ID: <333d94a2-87b6-b1e3-f369-d11eeead231e@candelatech.com> (raw)
In-Reply-To: <60724ae6-e8e2-183d-575a-0186e45c3fae@jetfuse.net>

On 1/11/22 11:46 AM, Brandon Nielsen wrote:
> On 1/8/22 3:22 PM, Ben Greear wrote:
>> On 1/8/22 12:50 PM, Brandon Nielsen wrote:
>>> I have a system with Intel AX201 not using 2 spatial streams in the RX (download) direction. TX (upload) functions as expected. I'm seeing similar behavior 
>>> with an AX200 system. I'm seeing the same behavior on 5.15.12 as I am with 5.16.0-rc8 so I didn't mark it as a regression. Windows works as expected.
>>>
>>> I have opened bug 215465[0] with some more detail.
>>>
>>> [0] - https://bugzilla.kernel.org/show_bug.cgi?id=215465
>>>
>>
>> We saw something similar with ax210, but only on 6E, in kernel 5.15.7+. On 5Ghz, it worked 2x2 as expected.
>> On a 5.15.0-rc something, it worked OK for us.
>>
>> We verified same firmware is used in both cases, but have not fully bisected the problem yet but we are
>> working on it.  In case you find the problem patch before us, please let me know!
>>
>> Thanks,
>> Ben
>>
> 
> I'm still seeing this as far back as 5.11.12, so I'm not convinced this is a regression. At least for the 5 GHz / 802.11ac case.
> 

Ok, we are trying to bisect now...slow going as normal.

Thanks,
Ben

-- 
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc  http://www.candelatech.com


  reply	other threads:[~2022-01-11 20:02 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-08 20:50 iwlwifi: AX201 not using 2 receive streams Brandon Nielsen
2022-01-08 21:22 ` Ben Greear
2022-01-11 19:46   ` Brandon Nielsen
2022-01-11 20:02     ` Ben Greear [this message]
2022-01-13 17:12     ` Ben Greear
2022-01-14 17:22       ` Brandon Nielsen
2022-01-17 19:46 ` Brandon Nielsen

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