summaryrefslogtreecommitdiff
path: root/include
diff options
context:
space:
mode:
authorBen Hutchings <ben.hutchings@codethink.co.uk>2015-02-26 19:34:37 +0000
committerDavid S. Miller <davem@davemloft.net>2015-03-29 12:06:43 -0700
commit1e9e39f4a29857a396ac7b669d109f697f66695e (patch)
tree93ee52a78995cbc5440b0433d52aa6efc7e73b20 /include
parentdde93dfea53c72b07907d9e44a6e4b1545f6bdc4 (diff)
usbnet: Fix tx_packets stat for FLAG_MULTI_FRAME drivers
Currently the usbnet core does not update the tx_packets statistic for drivers with FLAG_MULTI_PACKET and there is no hook in the TX completion path where they could do this. cdc_ncm and dependent drivers are bumping tx_packets stat on the transmit path while asix and sr9800 aren't updating it at all. Add a packet count in struct skb_data so these drivers can fill it in, initialise it to 1 for other drivers, and add the packet count to the tx_packets statistic on completion. Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk> Tested-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/linux/usb/usbnet.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/usb/usbnet.h b/include/linux/usb/usbnet.h
index d9a4905e01d0..ff3fb2bd0e90 100644
--- a/include/linux/usb/usbnet.h
+++ b/include/linux/usb/usbnet.h
@@ -228,8 +228,20 @@ struct skb_data { /* skb->cb is one of these */
struct usbnet *dev;
enum skb_state state;
size_t length;
+ unsigned long packets;
};
+/* Drivers that set FLAG_MULTI_PACKET must call this in their
+ * tx_fixup method before returning an skb.
+ */
+static inline void
+usbnet_set_skb_tx_stats(struct sk_buff *skb, unsigned long packets)
+{
+ struct skb_data *entry = (struct skb_data *) skb->cb;
+
+ entry->packets = packets;
+}
+
extern int usbnet_open(struct net_device *net);
extern int usbnet_stop(struct net_device *net);
extern netdev_tx_t usbnet_start_xmit(struct sk_buff *skb,