On Thu, Aug 25, 2011 at 15:18, Helmut Schaa <helmut.schaa@xxxxxxxxxxxxxx> wrote: > Hi, > > On Thu, Aug 25, 2011 at 11:51 AM, Arik Nemtsov <arik@xxxxxxxxxx> wrote: >> When this flag is set, Tx aggregations will not be initiated even >> if the hardware supports A-MPDU aggregation in general. This flag >> is required for devices supporting (partial) software Rx-aggregation. > > Is the hardware unable to do TX aggregation? > Or is it just not implemented? > Or is it entirely done in hw? Tx aggregations are done entirely in HW. > > Instead of cluttering mac80211 with hw flags you could also just disallow tx > aggregation sessions in the ampdu_action callback in the driver. Well the driver is doing some pretty heavy lifting before even calling the ampdu_action callback. Namely, ieee80211_start_tx_ba_session() doesn't call it. AFAICT, the return from the callback is only used as an indication that Tx BA session are temporary unavailable, and mac80211 should try again. This is not the case here. Regards, Arik -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
