kni: keep ethernet MAC address when interface goes up

[dpdk.git] / lib / librte_eal / linuxapp / kni / kni_misc.c

diff --git a/lib/librte_eal/linuxapp/kni/kni_misc.c b/lib/librte_eal/linuxapp/kni/kni_misc.c
index ae8133f..871437f 100644 (file)
--- a/lib/librte_eal/linuxapp/kni/kni_misc.c
+++ b/lib/librte_eal/linuxapp/kni/kni_misc.c
@@ -26,6 +26,7 @@
 #include <linux/module.h>
 #include <linux/miscdevice.h>
 #include <linux/netdevice.h>
+#include <linux/etherdevice.h>
 #include <linux/pci.h>
 #include <linux/kthread.h>
 #include <linux/rwsem.h>
@@ -542,6 +543,15 @@ kni_ioctl_create(struct net *net,
        if (pci)
                pci_dev_put(pci);
 
+       if (kni->lad_dev)
+               memcpy(net_dev->dev_addr, kni->lad_dev->dev_addr, ETH_ALEN);
+       else
+               /*
+                * Generate random mac address. eth_random_addr() is the newer
+                * version of generating mac address in linux kernel.
+                */
+               random_ether_addr(net_dev->dev_addr);
+
        ret = register_netdev(net_dev);
        if (ret) {
                KNI_ERR("error %i registering device \"%s\"\n",