net/wan/fsl_ucc_hdlc: tx timeout handler

Added tx timeout handler. This helps
when troubleshooting.

Signed-off-by: David Gounaris <david.gounaris@infinera.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/wan/fsl_ucc_hdlc.c b/drivers/net/wan/fsl_ucc_hdlc.c
index 4545c782ef4e7e7b031616febaf9149b7b62b759..8523ade160307d1570ae6873bb76c0fe99eb3ed2 100644 (file)
--- a/drivers/net/wan/fsl_ucc_hdlc.c
+++ b/drivers/net/wan/fsl_ucc_hdlc.c
@@ -999,11 +999,17 @@ static const struct dev_pm_ops uhdlc_pm_ops = {
 #define HDLC_PM_OPS NULL
 
 #endif
+static void uhdlc_tx_timeout(struct net_device *ndev)
+{
+       netdev_err(ndev, "%s\n", __func__);
+}
+
 static const struct net_device_ops uhdlc_ops = {
        .ndo_open       = uhdlc_open,
        .ndo_stop       = uhdlc_close,
        .ndo_start_xmit = hdlc_start_xmit,
        .ndo_do_ioctl   = uhdlc_ioctl,
+       .ndo_tx_timeout = uhdlc_tx_timeout,
 };
 
 static int ucc_hdlc_probe(struct platform_device *pdev)
@@ -1122,6 +1128,7 @@ static int ucc_hdlc_probe(struct platform_device *pdev)
        hdlc = dev_to_hdlc(dev);
        dev->tx_queue_len = 16;
        dev->netdev_ops = &uhdlc_ops;
+       dev->watchdog_timeo = 2 * HZ;
        hdlc->attach = ucc_hdlc_attach;
        hdlc->xmit = ucc_hdlc_tx;
        netif_napi_add(dev, &uhdlc_priv->napi, ucc_hdlc_poll, 32);