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authorVitaly Kuzmichev <vkuzmichev@mvista.com>2011-02-11 18:18:32 +0300
committerRemy Bohmer <linux@bohmer.net>2011-02-19 20:32:37 +0100
commitc85d70ef64ebe5c92811113108517eaacff47f7e (patch)
tree331df754537eeaec246fafbc73f657c13f5cde7b /drivers
parentb3649f3bbfdb2686eceb40a629cef8d4d257f5fa (diff)
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USB-CDC: Port struct net_device_stats
Port struct net_device_stats and statistics collecting needed for RNDIS protocol. Signed-off-by: Vitaly Kuzmichev <vkuzmichev@mvista.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/usb/gadget/ether.c39
1 files changed, 39 insertions, 0 deletions
diff --git a/drivers/usb/gadget/ether.c b/drivers/usb/gadget/ether.c
index 0e7549d..8aa6240 100644
--- a/drivers/usb/gadget/ether.c
+++ b/drivers/usb/gadget/ether.c
@@ -22,6 +22,7 @@
#include <common.h>
#include <asm/errno.h>
+#include <linux/netdevice.h>
#include <linux/usb/ch9.h>
#include <linux/usb/cdc.h>
#include <linux/usb/gadget.h>
@@ -175,6 +176,7 @@ struct eth_dev {
struct usb_request *tx_req, *rx_req;
struct eth_device *net;
+ struct net_device_stats stats;
unsigned int tx_qlen;
unsigned zlp:1;
@@ -1274,6 +1276,28 @@ static void rx_complete(struct usb_ep *ep, struct usb_request *req)
struct eth_dev *dev = ep->driver_data;
debug("%s: status %d\n", __func__, req->status);
+ switch (req->status) {
+ /* normal completion */
+ case 0:
+ dev->stats.rx_packets++;
+ dev->stats.rx_bytes += req->length;
+ break;
+
+ /* software-driven interface shutdown */
+ case -ECONNRESET: /* unlink */
+ case -ESHUTDOWN: /* disconnect etc */
+ /* for hardware automagic (such as pxa) */
+ case -ECONNABORTED: /* endpoint reset */
+ break;
+
+ /* data overrun */
+ case -EOVERFLOW:
+ dev->stats.rx_over_errors++;
+ /* FALLTHROUGH */
+ default:
+ dev->stats.rx_errors++;
+ break;
+ }
packet_received = 1;
}
@@ -1302,7 +1326,22 @@ fail1:
static void tx_complete(struct usb_ep *ep, struct usb_request *req)
{
+ struct eth_dev *dev = ep->driver_data;
+
debug("%s: status %s\n", __func__, (req->status) ? "failed" : "ok");
+ switch (req->status) {
+ default:
+ dev->stats.tx_errors++;
+ debug("tx err %d\n", req->status);
+ /* FALLTHROUGH */
+ case -ECONNRESET: /* unlink */
+ case -ESHUTDOWN: /* disconnect etc */
+ break;
+ case 0:
+ dev->stats.tx_bytes += req->length;
+ }
+ dev->stats.tx_packets++;
+
packet_sent = 1;
}