[PATCH] ath10k: disable wake_tx_queue for older devices

Dave Taht dave.taht at gmail.com
Mon Aug 1 02:04:56 PDT 2016

On Mon, Aug 1, 2016 at 1:35 AM, Roman Yeryomin <leroi.lists at gmail.com> wrote:
> On 7 July 2016 at 19:30, Valo, Kalle <kvalo at qca.qualcomm.com> wrote:
>> Michal Kazior <michal.kazior at tieto.com> writes:
>>> Ideally wake_tx_queue should be used regardless as
>>> it is a requirement for reducing bufferbloat and
>>> implementing airtime fairness in the future.
>>> However some setups (typically low-end platforms
>>> hosting QCA988X) suffer performance regressions
>>> with the current wake_tx_queue implementation.
>>> Therefore disable it unless it is really
>>> beneficial with current codebase (which is when
>>> firmware supports smart pull-push tx scheduling).
>>> Signed-off-by: Michal Kazior <michal.kazior at tieto.com>
>> I think it's too late to send this to 4.7 anymore (and this due to my
>> vacation). So I'm planning to queue this to 4.8, but if the feedback is
>> positive we can always send this to a 4.7 stable release.
> Sorry guys, drowned.
> So, yes, applying this patch does the job. That is gets me to the
> results similar to
> https://lists.openwrt.org/pipermail/openwrt-devel/2016-May/041448.html
> Going to try latest code on same system...

Can you try increasing the quantum to 1514, and reducing the codel
target to 5ms? (without this patch?)

> Regards,
> Roman
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Dave Täht
Let's go make home routers and wifi faster! With better software!

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