[Make-wifi-fast] [v3] ath9k: Switch to using mac80211 intermediate software queues.

Felix Fietkau nbd at nbd.name
Fri Jul 8 12:31:13 EDT 2016

On 2016-07-08 18:28, Toke Høiland-Jørgensen wrote:
> Felix Fietkau <nbd at nbd.name> writes:
>> On 2016-07-08 17:53, Toke Høiland-Jørgensen wrote:
>>> Kalle Valo <kvalo at qca.qualcomm.com> writes:
>>>> Toke Høiland-Jørgensen wrote:
>>>>> This switches ath9k over to using the mac80211 intermediate software
>>>>> queueing mechanism for data packets. It removes the queueing inside the
>>>>> driver, except for the retry queue, and instead pulls from mac80211 when
>>>>> a packet is needed. The retry queue is used to store a packet that was
>>>>> pulled but can't be sent immediately.
>>>>> The old code path in ath_tx_start that would queue packets has been
>>>>> removed completely, as has the qlen limit tunables (since there's no
>>>>> longer a queue in the driver to limit).
>>>>> Based on Tim's original patch set, but reworked quite thoroughly.
>>>>> Cc: Tim Shepard <shep at alum.mit.edu>
>>>>> Cc: Felix Fietkau <nbd at nbd.name>
>>>>> Signed-off-by: Toke Høiland-Jørgensen <toke at toke.dk>
>>>> Nice work.
>>> Thanks :)
>>>> Because this is such a significant change, and to maximise testing
>>>> time, I'm planning to queue this for 4.9 (so I would apply this to
>>>> ath-next in 3-4 weeks after the merge window closes). But anyone who
>>>> wants to test this can use master-pending branch from my ath.git tree
>>>> (uses wireless-testing as the baseline). Sounds good?
>>> Sounds good to me. I'm planning on backporting this and Michael's
>>> mac80211 FQ-CoDel patches to 4.4 and post them for inclusion in LEDE.
>>> Hopefully that will get it some more testing as well.
>> I've pushed a backport of this into my LEDE staging tree:
>> https://git.lede-project.org/?p=lede/nbd/staging.git;a=summary
> Awesome! What about the FQ-CoDel mac80211 patches themselves? I have a
> tree where I've separated out the needed patches and rebased them on
> mainline 4.4.9. Can I post that somewhere (or just email you the series)
> and get you to include those as well? Or do I just dump the patch files
> into the LEDE patches dir and send that as a patch to LEDE? (I see your
> patch also refreshed subsequent patches; is there a script to do that
> automatically?)
You don't need to do anything here. LEDE does not use mac80211 and
drivers from the kernel tree, it's built using backports.
It's currently using a backports snapshot that I built myself from
wireless-testing 2016-06-20, which already includes FQ-Codel.

- Felix

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