Bugs in wake-queue logic.

Ben Greear greearb at candelatech.com
Thu Dec 3 22:30:53 PST 2015

On 12/03/2015 10:11 PM, Janusz Dziedzic wrote:
> On 4 December 2015 at 07:06, Janusz Dziedzic <janusz.dziedzic at tieto.com> wrote:
>> On 3 December 2015 at 20:52, Ben Greear <greearb at candelatech.com> wrote:
>>> So, after tweaking a firmware image to actually be able to use
>>> all tx-buffers, then queues can actually be stopped on the host
>>> now.
>>> I'm now getting splats related to tx-queue being
>>> out of range.
>>> Why are we using vdev_id as the queue-id below?
>> This is comment in the code:
>>          /* Using vdev_id as queue number will make it very easy to do per-vif
>>           * tx queue locking. This shouldn't wrap due to interface combinations
>>           * but do a modulo for correctness sake and prevent using offchannel tx
>>           * queues for regular vif tx.
>>           */
> BTW, I think Michal will send soon "new" design for that because of
> MU-MIMO implementation.

It would be nice if ath10k could gracefully deal with 64 vdevs using only
the default 16 maximum tx-queues supported by mac80211.

I wrote a patch that extended max-queues to 65, but not sure it will
make it upstream...


Ben Greear <greearb at candelatech.com>
Candela Technologies Inc  http://www.candelatech.com

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