enic: Fix ndo_set_vf_mac and ndo_set_vf_port to set/get the sriov vf's mac

This patch fixes the ndo_set_vf_mac netdev op to set the sriov vf mac
in adapter using the new fw devcmd CMD_SET_MAC_ADDR. During port profile
associate the pf driver gets the vf mac using CMD_GET_MAC_ADDR.

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

drivers/net/ethernet/cisco/enic/enic.h

@@ -32,7 +32,7 @@
 
 #define DRV_NAME		"enic"
 #define DRV_DESCRIPTION		"Cisco VIC Ethernet NIC Driver"
-#define DRV_VERSION		"2.1.1.36"
+#define DRV_VERSION		"2.1.1.37"
 #define DRV_COPYRIGHT		"Copyright 2008-2011 Cisco Systems, Inc"
 
 #define ENIC_BARS_MAX		6

drivers/net/ethernet/cisco/enic/enic_main.c

@@ -1070,8 +1070,17 @@ static int enic_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
 		return err;
 
 	if (is_valid_ether_addr(mac)) {
-		memcpy(pp->vf_mac, mac, ETH_ALEN);
-		return 0;
+		if (vf == PORT_SELF_VF) {
+			memcpy(pp->vf_mac, mac, ETH_ALEN);
+			return 0;
+		} else {
+			/*
+			 * For sriov vf's set the mac in hw
+			 */
+			ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic,
+				vnic_dev_set_mac_addr, mac);
+			return enic_dev_status_to_errno(err);
+		}
 	} else
 		return -EINVAL;
 }
@@ -1115,12 +1124,23 @@ static int enic_set_vf_port(struct net_device *netdev, int vf,
 			nla_data(port[IFLA_PORT_HOST_UUID]), PORT_UUID_MAX);
 	}
 
-	/* Special case handling: mac came from IFLA_VF_MAC */
-	if (!is_zero_ether_addr(prev_pp.vf_mac))
-		memcpy(pp->mac_addr, prev_pp.vf_mac, ETH_ALEN);
+	if (vf == PORT_SELF_VF) {
+		/* Special case handling: mac came from IFLA_VF_MAC */
+		if (!is_zero_ether_addr(prev_pp.vf_mac))
+			memcpy(pp->mac_addr, prev_pp.vf_mac, ETH_ALEN);
 
-	if (vf == PORT_SELF_VF && is_zero_ether_addr(netdev->dev_addr))
-		eth_hw_addr_random(netdev);
+		if (is_zero_ether_addr(netdev->dev_addr))
+			eth_hw_addr_random(netdev);
+	} else {
+		/* SR-IOV VF: get mac from adapter */
+		ENIC_DEVCMD_PROXY_BY_INDEX(vf, err, enic,
+			vnic_dev_get_mac_addr, pp->mac_addr);
+		if (err) {
+			netdev_err(netdev, "Error getting mac for vf %d\n", vf);
+			memcpy(pp, &prev_pp, sizeof(*pp));
+			return enic_dev_status_to_errno(err);
+		}
+	}
 
 	err = enic_process_set_pp_request(enic, vf, &prev_pp, &restore_pp);
 	if (err) {
@@ -1148,7 +1168,8 @@ static int enic_set_vf_port(struct net_device *netdev, int vf,
 		}
 	}
 
-	memset(pp->vf_mac, 0, ETH_ALEN);
+	if (vf == PORT_SELF_VF)
+		memset(pp->vf_mac, 0, ETH_ALEN);
 
 	return err;
 }