Re: [PATCH 06/18] wifi: iwlwifi: keep the TSO and workaround pages mapped

[Ben Greear <greearb@candelatech.com>]

On 7/11/24 09:09, Ben Greear wrote:
> On 7/10/24 23:15, Berg, Benjamin wrote:
>> Hi Ben,
>>
>> yes, you need to apply:
>>
>> commit 003eae5a28c6c9d50290a4ac9b955be912f24c9f
>> Author: Benjamin Berg <benjamin.berg@intel.com>
>> Date:   Tue Jul 9 14:31:49 2024 +0200
>>
>>      wifi: iwlwifi: correctly reference TSO page information
>>
>>
>> I had not fully tested the last revision and the error slipped
>> unfortunately.
> 
> Hello Benjamin,
> 
> Sorry I did not notice that patch on the mailing list on my own.  I re-applied
> the 6/18 and 7/18 patches, and the fix you mention above, and system appears stable.

Hello,

We found another regression in our patched 6.10-ish kernel.  Before I apply these 3
patches:

wifi: iwlwifi: keep the TSO and workaround pages mapped
wifi: iwlwifi: use already mapped data when TXing an AMSDU
wifi: iwlwifi: correctly reference TSO page information

Then I see around 4Gbps TCP upload on my test rig.  After this, it runs very poorly,
perhaps bouncing up to high speed for a second or two, but mostly averaging 80Mbps
or so after it runs for a bit.

What are these patches trying to solve, and are you able to see good TCP upload performance
with these patches applied?

Thanks,
Ben