On Wed, Aug 24, 2011 at 10:08 PM, Johannes Berg
<johannes@xxxxxxxxxxxxxxxx> wrote:
> On Wed, 2011-08-24 at 18:40 -0700, Thomas Pedersen wrote:
>> From: Pedro Larbig <pedro.larbig@xxxxxxxx>
>>
>> To avoid contention problems in a mesh network's high load areas, this patch
>> adds a 2-stage packet dropping mechanism:
>> * If the transmit queue for HWMP frames is filled with 256 or more packets,
>> additional HWMP frames will be dropped
>> * If the transmit queue for forwarded packets is at 384 or more, drop those,
>> too
>
>> + /* Frames going through ieee80211_tx_skb will be on the voice queue,
>> + * Therefor we need to check only IEEE80211_AC_VO */
>> + if (unlikely(skb_queue_len(&local->pending[IEEE80211_AC_VO]) >=
>> + MESH_MGMT_QUEUE_LEN)) {
>> + kfree_skb(skb);
>> + I802_DEBUG_INC(local->tx_handlers_drop_mesh_mgmt);
>> + return;
>> + }
>
> I still don't think this should be done. If the HW queue is full, we
> will get a stop_queue from the driver, this could also tell mesh to stop
> forwarding or so.
Oh, I see, ieee80211_stop_queue().
Thanks!
Javier
--
Javier Cardona
cozybit Inc.
http://www.cozybit.com
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