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rt2x00: Detect USB BULK in/out endpoints

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Instead of hardcoding the used in/out endpoints
we should detect them by walking through all
available endpoints.

rt2800usb will gain the most out of this, because
the legacy drivers indicate that there are multiple
endpoints available.
However this code might benefit at least rt73usb as
well for the MIMO queues, and if we are really lucky
rt2500usb will benefit because for the TX and PRIO
queues.

Even if rt2500usb and rt73usb do not get better performance
after this patch, the endpoint detection still belongs to
rt2x00usb, and it shouldn't hurt to always try to detect
the available endpoints.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Ivo van Doorn
2008-11-13 23:07:33 +01:00
committed by John W. Linville
parent c8f96974ee
commit f1ca2167d8
5 changed files with 111 additions and 28 deletions
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7
drivers/net/wireless/rt2x00/rt73usb.c
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@@ -1508,8 +1508,7 @@ static void rt73usb_write_beacon(struct queue_entry *entry)
entry->skb = NULL;
}
static int rt73usb_get_tx_data_len(struct rt2x00_dev *rt2x00dev,
struct sk_buff *skb)
static int rt73usb_get_tx_data_len(struct queue_entry *entry)
{
int length;
@@ -1517,8 +1516,8 @@ static int rt73usb_get_tx_data_len(struct rt2x00_dev *rt2x00dev,
* The length _must_ be a multiple of 4,
* but it must _not_ be a multiple of the USB packet size.
*/
length = roundup(skb->len, 4);
length += (4 * !(length % rt2x00dev->usb_maxpacket));
length = roundup(entry->skb->len, 4);
length += (4 * !(length % entry->queue->usb_maxpacket));
return length;
}