ixgbe: Add support for netdev_ops.ndo_fcoe_get_wwn to 82599
Implements the netdev_ops.ndo_fcoe_get_wwn in 82599 if it finds valid
prefix for the World Wide Node Name (WWNN) or World Wide Port Name (WWPN),
as well as valid SAN MAC address.
Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ixgbe/ixgbe_fcoe.c b/drivers/net/ixgbe/ixgbe_fcoe.c
index a3c9f99..edecdc8 100644
--- a/drivers/net/ixgbe/ixgbe_fcoe.c
+++ b/drivers/net/ixgbe/ixgbe_fcoe.c
@@ -718,3 +718,49 @@
return 1;
}
#endif /* CONFIG_IXGBE_DCB */
+
+/**
+ * ixgbe_fcoe_get_wwn - get world wide name for the node or the port
+ * @netdev : ixgbe adapter
+ * @wwn : the world wide name
+ * @type: the type of world wide name
+ *
+ * Returns the node or port world wide name if both the prefix and the san
+ * mac address are valid, then the wwn is formed based on the NAA-2 for
+ * IEEE Extended name identifier (ref. to T10 FC-LS Spec., Sec. 15.3).
+ *
+ * Returns : 0 on success
+ */
+int ixgbe_fcoe_get_wwn(struct net_device *netdev, u64 *wwn, int type)
+{
+ int rc = -EINVAL;
+ u16 prefix = 0xffff;
+ struct ixgbe_adapter *adapter = netdev_priv(netdev);
+ struct ixgbe_mac_info *mac = &adapter->hw.mac;
+
+ switch (type) {
+ case NETDEV_FCOE_WWNN:
+ prefix = mac->wwnn_prefix;
+ break;
+ case NETDEV_FCOE_WWPN:
+ prefix = mac->wwpn_prefix;
+ break;
+ default:
+ break;
+ }
+
+ if ((prefix != 0xffff) &&
+ is_valid_ether_addr(mac->san_addr)) {
+ *wwn = ((u64) prefix << 48) |
+ ((u64) mac->san_addr[0] << 40) |
+ ((u64) mac->san_addr[1] << 32) |
+ ((u64) mac->san_addr[2] << 24) |
+ ((u64) mac->san_addr[3] << 16) |
+ ((u64) mac->san_addr[4] << 8) |
+ ((u64) mac->san_addr[5]);
+ rc = 0;
+ }
+ return rc;
+}
+
+