1 files changed, 94 insertions, 0 deletions
diff --git a/sys/ofed/include/linux/etherdevice.h b/sys/ofed/include/linux/etherdevice.h
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+++ b/sys/ofed/include/linux/etherdevice.h
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+/*
+ * Copyright (c) 2007 Cisco Systems, Inc.  All rights reserved.
+ * Copyright (c) 2014 Mellanox Technologies, Ltd. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *	- Redistributions of source code must retain the above
+ *	  copyright notice, this list of conditions and the following
+ *	  disclaimer.
+ *
+ *	- Redistributions in binary form must reproduce the above
+ *	  copyright notice, this list of conditions and the following
+ *	  disclaimer in the documentation and/or other materials
+ *	  provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+
+#ifndef _LINUX_ETHERDEVICE
+#define _LINUX_ETHERDEVICE
+
+#include <linux/types.h>
+
+/**
+ * is_zero_ether_addr - Determine if give Ethernet address is all zeros.
+ * @addr: Pointer to a six-byte array containing the Ethernet address
+ *
+ * Return true if the address is all zeroes.
+ */
+static inline bool is_zero_ether_addr(const u8 *addr)
+{
+        return !(addr[0] | addr[1] | addr[2] | addr[3] | addr[4] | addr[5]);
+}
+
+
+
+/**
+ * is_multicast_ether_addr - Determine if the Ethernet address is a multicast.
+ * @addr: Pointer to a six-byte array containing the Ethernet address
+ *
+ * Return true if the address is a multicast address.
+ * By definition the broadcast address is also a multicast address.
+ */
+static inline bool is_multicast_ether_addr(const u8 *addr)
+{
+        return (0x01 & addr[0]);
+}
+
+/**
+ * is_broadcast_ether_addr - Determine if the Ethernet address is broadcast
+ * @addr: Pointer to a six-byte array containing the Ethernet address
+ *
+ * Return true if the address is the broadcast address.
+ */
+static inline bool is_broadcast_ether_addr(const u8 *addr)
+{
+        return (addr[0] & addr[1] & addr[2] & addr[3] & addr[4] & addr[5]) == 0xff;
+}
+
+/**
+ * is_valid_ether_addr - Determine if the given Ethernet address is valid
+ * @addr: Pointer to a six-byte array containing the Ethernet address
+ *
+ * Check that the Ethernet address (MAC) is not 00:00:00:00:00:00, is not
+ * a multicast address, and is not FF:FF:FF:FF:FF:FF.
+ *
+ * Return true if the address is valid.
+ **/
+static inline bool is_valid_ether_addr(const u8 *addr)
+{
+        /* FF:FF:FF:FF:FF:FF is a multicast address so we don't need to
+        ** explicitly check for it here. */
+        return !is_multicast_ether_addr(addr) && !is_zero_ether_addr(addr);
+}
+
+
+
+#endif /* _LINUX_ETHERDEVICE */