[PATCH RFC 0/3] ath10k: add encapsulation offloading support

Sergey Ryazanov ryazanov.s.a at gmail.com
Mon Apr 18 08:42:39 PDT 2022

On Mon, Apr 4, 2022 at 10:15 AM Kalle Valo <kvalo at kernel.org> wrote:
> Sergey Ryazanov <ryazanov.s.a at gmail.com> writes:
>> Hello,
>> this series introduces driver support for hardware encapsulation
>> offloading feature.
>> The main goal of the series is an overall improvement of system
>> performance. On a QCA9563+QCA9888-based access point in bridged mode,
>> encapsulation offloading increases TCP 16-streams DL throughput from
>> 365 to 396 mbps (+8%) and UDP DL throughput from 436 to 483 mbps (+11%).
>> The series consist of three patches, the first two prepare the code, and
>> the last one introduces the offloading support itself. The first patch
>> reworks transmission status reporting to make it flexible enough to
>> support 802.11 and Ethernet encapsulated frames reporting. The second
>> patch reworks the module parameter that configures the main
>> encapsulation format of frames that are passed from the driver to the
>> hardware. It makes it possible to configure more encapsulation methods
>> than just raw or not-raw. And, as stated before, the third patch
>> actually introduces offloading support. It changes a couple of frame
>> analysis places along the xmit path and starts reporting offloading
>> support to mac80211 via the corresponding hw attribute.
>> The new feature has been extensively tested with QCA9888 and works well,
>> but it may introduces some regression for other untested chips. So the
>> series is just an RFC for now.
> This looks very good to me. But the testing part concerns me as well, it
> would be good to have some quick testing at least with QCA6174/QCA9377
> PCI devices to make sure we don't break those. Preferably also
> QCA6174/QCA9377 SDIO devices should be tested, they work somewhat
> differently. Can anyone help?

Is any brave tester trying to improve the performance of their system
with this change? Can I resend it as a regular patch?


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