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Re: [PATCH] mt76: mt7921: fix aggregation subframes setting to HE max

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Hi Felix,

On Fri, 2022-06-17 at 10:39 +0200, Felix Fietkau wrote:
> On 16.06.22 17:57, Deren Wu wrote:
> > From: Deren Wu <deren.wu@xxxxxxxxxxxx>
> > 
> > mt7921/mt7922 support HE max aggregation subframes 256 for both
> > tx/rx.
> > Get better throughput then before.
> > 
> > Fixes: 94bb18b03d43 ("mt76: mt7921: fix max aggregation subframes
> > setting")
> > Tested-by: Ming Yen Hsieh <mingyen.hsieh@xxxxxxxxxxxx>
> > Reviewed-by: Sean Wang <sean.wang@xxxxxxxxxxxx>
> > Signed-off-by: Deren Wu <deren.wu@xxxxxxxxxxxx>
> 
> When I made the change that you're reverting here, I used the values 
> from the reference SDK that I got, and the change actually seemed to 
> improve performance in my tests.
> Did something change in the firmware, or is there a related chipset 
> difference between 7921 and 7922?
> 
> - Felix
> 


Yes, there was some fw changes ready in 2021 and the SDK was updated as
well. After some performance re-check, the test result is much better
with the new patch. We think the max-size-256 can be applied in
mt7921/mt7922 driver now. 

PS: mt7921/mt7922 are the same. Both of them can support this size.

Thanks,
Deren




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