enic: Add ndo_set_vf_mac support for enic dynamic devices

This patch implements the ndo_set_vf_mac netdev operation for enic
dynamic devices. It treats the mac address set by IFLA_VF_MAC as a
special case to use it in the port profile provisioning data.

Signed-off-by: Roopa Prabhu <roprabhu@cisco.com>
Signed-off-by: David Wang <dwang2@cisco.com>
Signed-off-by: Christian Benvenuti <benve@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 20 insertions, 0 deletions

diff --git a/drivers/net/enic/enic_main.c b/drivers/net/enic/enic_main.c
index 1931f156777c..ddeffb5192ae 100644
--- a/drivers/net/enic/enic_main.c
+++ b/drivers/net/enic/enic_main.c
@@ -1231,6 +1231,23 @@ static int enic_dev_init_done(struct enic *enic, int *done, int *error)
         return err;
 }
 
+static int enic_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
+{
+        struct enic *enic = netdev_priv(netdev);
+
+        if (vf != PORT_SELF_VF)
+                return -EOPNOTSUPP;
+
+        /* Ignore the vf argument for now. We can assume the request
+         * is coming on a vf.
+         */
+        if (is_valid_ether_addr(mac)) {
+                memcpy(enic->pp.vf_mac, mac, ETH_ALEN);
+                return 0;
+        } else
+                return -EINVAL;
+}
+
 static int enic_set_port_profile(struct enic *enic, u8 *mac)
 {
         struct vic_provinfo *vp;
@@ -2411,6 +2428,9 @@ static const struct net_device_ops enic_netdev_dynamic_ops = {
         .ndo_tx_timeout         = enic_tx_timeout,
         .ndo_set_vf_port        = enic_set_vf_port,
         .ndo_get_vf_port        = enic_get_vf_port,
+#ifdef IFLA_VF_MAX
+        .ndo_set_vf_mac         = enic_set_vf_mac,
+#endif
 #ifdef CONFIG_NET_POLL_CONTROLLER
         .ndo_poll_controller    = enic_poll_controller,
 #endif