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usbnet: changes for upcoming cdc_ncm driver

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Changes:
include/linux/usb/usbnet.h:
- a new flag to indicate driver's capability to accumulate IP packets in Tx
 direction and extract several packets from single skb in Rx direction.
drivers/net/usb/usbnet.c:
- the procedure of counting packets in usbnet was updated due to the
 accumulating of IP packets in the driver
- no short packets are sent if indicated by the flag in driver_info
 structure

Signed-off-by: Alexey Orishko <alexey.orishko@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alexey Orishko 2010-11-29 23:23:27 +00:00 • committed by David S. Miller
parent 5ee4937673
commit 073285fd39
2 changed files with 37 additions and 14 deletions
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6
include/linux/usb/usbnet.h
View file

@ -97,6 +97,12 @@ struct driver_info {
#define FLAG_LINK_INTR 0x0800 /* updates link (carrier) status */
/*
* Indicates to usbnet, that USB driver accumulates multiple IP packets.
* Affects statistic (counters) and short packet handling.
*/
#define FLAG_MULTI_PACKET 0x1000
/* init device ... can sleep, or cause probe() failure */
int (*bind)(struct usbnet *, struct usb_interface *);