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Commit 0d9be8a4 authored by Stanislaw Gruszka's avatar Stanislaw Gruszka Committed by John W. Linville
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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: default avatarStanislaw Gruszka <sgruszka@redhat.com>
Acked-by: default avatarGertjan van Wingerde <gwingerde@gmail.com>
Acked-by: default avatarHelmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 5f8f718a

drivers/net/wireless/rt2x00/rt2800usb.c

+1 −1
Original line number Original line Diff line number Diff line
@@ -870,7 +870,7 @@ static const struct data_queue_desc rt2800usb_queue_rx = { 
};

};





static const struct data_queue_desc rt2800usb_queue_tx = {

static const struct data_queue_desc rt2800usb_queue_tx = {

	.entry_num		= 64,

	.entry_num		= 16,

	.data_size		= AGGREGATION_SIZE,

	.data_size		= AGGREGATION_SIZE,

	.desc_size		= TXINFO_DESC_SIZE + TXWI_DESC_SIZE,

	.desc_size		= TXINFO_DESC_SIZE + TXWI_DESC_SIZE,

	.priv_size		= sizeof(struct queue_entry_priv_usb),

	.priv_size		= sizeof(struct queue_entry_priv_usb),