[Make-wifi-fast] ath10k fq_codel support

[Noah Causin]

I tested it, and it is disabled.  I am noticing better latency 
performance on the ath9k though.


On 10/13/2016 12:15 PM, Toke Høiland-Jørgensen wrote:
> That's because the LEDE WiFi stack was just rebased on a newer upstream. But the patch that disables it is upstream, so it'll still be disabled, I think...
>
> -Toke
>
> On 13 October 2016 18:08:12 CEST, Noah Causin <n0manletter at gmail.com> wrote:
>> It seems like the patch in LEDE was removed 5 days ago.
>>
>> https://github.com/lede-project/source/commit/ad51e09fd1301484820a466a49447a34d7504882
>>
>> Search the page for:
>>
>> 311-ath10k-disable-wake_tx_queue-for-older-devices.patch
>>
>> I'm going to compile a new build for my Archer C7 and see.
>>
>>
>> On 10/13/2016 11:59 AM, Michal Kazior wrote:
>>> On 13 Octsuppber 2016 at 17:41, Toke Høiland-Jørgensen <toke at toke.dk>
>> wrote:
>>>> Noah Causin <n0manletter at gmail.com> writes:
>>>>
>>>>> Hi,
>>>>>
>>>>> I was looking into getting an Ubiquiti Unifi AC-Pro to flash LEDE
>> onto for
>>>>> testing the ath10k performance and latency with fq_codel.
>>>>>
>>>>> I already have an Archer C7 V2 which uses the
>> ath10k-firmware-qca988x package,
>>>>> which the Unifi AC-Pro and Lite seem to use.
>>>>>
>>>>> Would I have all I need if I flashed the latest git version of
>> LEDE?
>>>>> Also, what firmware versions support the intermediate software
>> queues,
>>>>> and would my Archer C7 be fine for preliminary testing?
>>>> You can check if it's active by seeing if you can read
>>>> /sys/kernel/debug/ieee80211/phy0/aqm - if that exists and outputs
>>>> anything when you 'cat' it, the intermediate queues are active.
>>>>
>>>> They are disabled for some hardware revisions, but not sure which
>> ones.
>>> wake_tx_queue is disabled if fw doesn't advertise flow control
>> support
>>> (which is supported in qca99xx and qca40xx chip fw blobs only so
>> far).
>>> qca988x found in archer c7 will have it disabled.
>>>
>>> The patch that disables it is [1]. You can revert it or tinker around
>>> the logic it introduced if you want to force fq_codel.
>>>
>>> [1]:
>> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/net/wireless/ath/ath10k?id=4ca1807815aa6801aaced7fdefa9edacc2521767
>>>
>>> Michal