diff options
Diffstat (limited to 'drivers/net/ixgbe/ixgbe_fcoe.c')
| -rw-r--r-- | drivers/net/ixgbe/ixgbe_fcoe.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/drivers/net/ixgbe/ixgbe_fcoe.c b/drivers/net/ixgbe/ixgbe_fcoe.c index a3c9f99515e..edecdc853c1 100644 --- a/drivers/net/ixgbe/ixgbe_fcoe.c +++ b/drivers/net/ixgbe/ixgbe_fcoe.c @@ -718,3 +718,49 @@ u8 ixgbe_fcoe_setapp(struct ixgbe_adapter *adapter, u8 up) 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; +} + + |