kni: allow setting MAC address

Add relevant callback function to change a KNI device's MAC address.

Signed-off-by: Padam Jeet Singh <padam.singh@inventum.net>
Reviewed-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 28cc5ab..fa5fd3e 100644 (file)
--- a/lib/librte_eal/linuxapp/kni/kni_net.c
+++ b/lib/librte_eal/linuxapp/kni/kni_net.c
@@ -612,6 +612,21 @@ kni_net_rebuild_header(struct sk_buff *skb)
        return 0;
 }
 
+/**
+ * kni_net_set_mac - Change the Ethernet Address of the KNI NIC
+ * @netdev: network interface device structure
+ * @p: pointer to an address structure
+ *
+ * Returns 0 on success, negative on failure
+ **/
+static int kni_net_set_mac(struct net_device *netdev, void *p)
+{
+       struct sockaddr *addr = p;
+       if (!is_valid_ether_addr((unsigned char *)(addr->sa_data)))
+               return -EADDRNOTAVAIL;
+       memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
+       return 0;
+}
 
 static const struct header_ops kni_net_header_ops = {
        .create  = kni_net_header,
@@ -628,6 +643,7 @@ static const struct net_device_ops kni_net_netdev_ops = {
        .ndo_do_ioctl = kni_net_ioctl,
        .ndo_get_stats = kni_net_stats,
        .ndo_tx_timeout = kni_net_tx_timeout,
+       .ndo_set_mac_address = kni_net_set_mac,
 };
 
 void