From: Stanislaw Gruszka Date: Wed, 14 Mar 2012 10:16:21 +0000 (+0100) Subject: rt2x00: rt2800usb: limit tx queues length X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=0d9be8a4b7da71ef3b4ac8f6aa4fa225c1cb8e98;p=~shefty%2Frdma-dev.git rt2x00: rt2800usb: limit tx queues length TX status fifo is limited to 16 elements. When we send more frames than that, we can easily loose status, what is not good for rate scaling algorithm. On my testing the change does not degrade performance, actually make is slightly better. Additionally with the patch I can see much less various rt2x00 warnings in dmesg. Signed-off-by: Stanislaw Gruszka Acked-by: Gertjan van Wingerde Acked-by: Helmut Schaa Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c index 8c1d2c0df85..cd490abced9 100644 --- a/drivers/net/wireless/rt2x00/rt2800usb.c +++ b/drivers/net/wireless/rt2x00/rt2800usb.c @@ -870,7 +870,7 @@ static const struct data_queue_desc rt2800usb_queue_rx = { }; static const struct data_queue_desc rt2800usb_queue_tx = { - .entry_num = 64, + .entry_num = 16, .data_size = AGGREGATION_SIZE, .desc_size = TXINFO_DESC_SIZE + TXWI_DESC_SIZE, .priv_size = sizeof(struct queue_entry_priv_usb),