netdev - [PATCH v2] ax88179_178a: Add reset functionality in reset

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Date:	Thu, 23 Jul 2015 10:16:33 +0000 (GMT)
From:	Praveen Kumar <praveen.k09@...sung.com>
To:	netdev@...r.kernel.org
Cc:	vivek.bhagat@...sung.com,
	HEMANSHU SRIVASTAVA <hemanshu.s@...sung.com>
Subject: [PATCH v2] ax88179_178a: Add reset functionality in reset_resume

Without reset functionality in reset_resume, iperf connection
does not establish after suspend/resume however ping works at
the same time. iperf connection fails by giving checksum error
in tcpdump.

reset function inside reset_resume solves above bug.
We have verified it on ASIX based ST Lab, Cadyce dongle.

Signed-off-by: Vivek Kumar Bhagat <vivek.bhagat@...sung.com>
Signed-off-by: Praveen Kumar <praveen.k09@...sung.com>

---
 drivers/net/usb/ax88179_178a.c |   14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/drivers/net/usb/ax88179_178a.c b/drivers/net/usb/ax88179_178a.c
index e6338c1..00928c0 100644
--- a/drivers/net/usb/ax88179_178a.c
+++ b/drivers/net/usb/ax88179_178a.c
@@ -1630,6 +1630,18 @@ static int ax88179_stop(struct usbnet *dev)
 	return 0;
 }
 
+static int ax88179_reset_resume(struct usb_interface *intf)
+{
+	struct usbnet *dev = usb_get_intfdata(intf);
+	int ret;
+
+	ret = ax88179_reset(dev);
+	if (ret < 0)
+		return ret;
+
+	return  ax88179_resume(intf);
+}
+
 static const struct driver_info ax88179_info = {
 	.description = "ASIX AX88179 USB 3.0 Gigabit Ethernet",
 	.bind = ax88179_bind,
@@ -1744,7 +1756,7 @@ static struct usb_driver ax88179_178a_driver = {
 	.probe =	usbnet_probe,
 	.suspend =	ax88179_suspend,
 	.resume =	ax88179_resume,
-	.reset_resume =	ax88179_resume,
+	.reset_resume =	ax88179_reset_resume,
 	.disconnect =	usbnet_disconnect,
 	.supports_autosuspend = 1,
 	.disable_hub_initiated_lpm = 1,
-- 
1.7.9.5