2011/3/25 Dennis Borgmann <dennis.borgmann@xxxxxxxxxxxxxx>: > Hello John, > > the goal would be to have a transmission as fast as possible while > ignoring, if a packet reached its destination or not. I'd like to test > wireless performance regarding transmission time in a dedicated > environment. As far as I can see, backoff might already push the > transmission times up quite a lot and if I'd even add the time of - > worst case - 10 retransmissions, the transmission time of one packet > will grow even more. > > It would be second-rank, if the packet reaches its destination. Loss of > some packets is not a problem in my testbed. > > So I'd like to disable usage of ACKs in order to be off with the only > problem - backoff. Disabling this would of course be nice, but I fear, > that's far more work that just disabling ACKs. > > Dennis > Check out these flags... AR5K_TXDESC_NOACK (set it on each tx descriptor to disable ACKs for each frames -we do this for beacons already, check out base.c) AR5K_TXQ_FLAG_BACKOFF_DISABLE (set it when initializing queues, see how we handle the rest _TXQ_ flags on base.c) -- GPG ID: 0xD21DB2DB As you read this post global entropy rises. Have Fun ;-) Nick -- 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