From: Vijayakumar Muthuvel Manickam <mmvijay@gmail.com>
Date: Tue, 16 Jun 2015 06:39:54 +0000 (-0400)
Subject: kni: add link status update
X-Git-Tag: spdx-start~9064
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=c077fb455f7e298041a8bc8f5de1544df8b42282;p=dpdk.git

kni: add link status update

Implement .ndo_change_carrier to enable
DPDK applications to propagate link state changes to
kni virtual interfaces through sysfs

Signed-off-by: Vijayakumar Muthuvel Manickam <mmvijay@gmail.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
---

diff --git a/lib/librte_eal/linuxapp/kni/kni_net.c b/lib/librte_eal/linuxapp/kni/kni_net.c
index dd95db5b76..9f9022b776 100644
--- a/lib/librte_eal/linuxapp/kni/kni_net.c
+++ b/lib/librte_eal/linuxapp/kni/kni_net.c
@@ -632,6 +632,17 @@ static int kni_net_set_mac(struct net_device *netdev, void *p)
 	return 0;
 }
 
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 9, 0))
+static int kni_net_change_carrier(struct net_device *dev, bool new_carrier)
+{
+	if (new_carrier)
+		netif_carrier_on(dev);
+	else
+		netif_carrier_off(dev);
+	return 0;
+}
+#endif
+
 static const struct header_ops kni_net_header_ops = {
 	.create  = kni_net_header,
 	.rebuild = kni_net_rebuild_header,
@@ -648,6 +659,9 @@ static const struct net_device_ops kni_net_netdev_ops = {
 	.ndo_get_stats = kni_net_stats,
 	.ndo_tx_timeout = kni_net_tx_timeout,
 	.ndo_set_mac_address = kni_net_set_mac,
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 9, 0))
+	.ndo_change_carrier = kni_net_change_carrier,
+#endif
 };
 
 void