xref: /illumos-gate/usr/src/uts/sun4v/sys/vsw_fdb.h (revision d362b749)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #ifndef	_VSW_FDB_H
28 #define	_VSW_FDB_H
29 
30 #pragma ident	"%Z%%M%	%I%	%E% SMI"
31 
32 #ifdef	__cplusplus
33 extern "C" {
34 #endif
35 
36 /*
37  * Convert ethernet (mac) address to hash table key.
38  */
39 #define	KEY_HASH(key, addr) \
40 	(key = ((((uint64_t)addr.ether_addr_octet[0]) << 40) | \
41 	(((uint64_t)addr.ether_addr_octet[1]) << 32) | \
42 	(((uint64_t)addr.ether_addr_octet[2]) << 24) | \
43 	(((uint64_t)addr.ether_addr_octet[3]) << 16) | \
44 	(((uint64_t)addr.ether_addr_octet[4]) << 8) | \
45 	((uint64_t)addr.ether_addr_octet[5])));
46 
47 /*
48  * Multicast forwarding database (mFDB) is a hashtable
49  * keyed off the mac address, with the value being a linked
50  * list of mfdb_ent_t structures, each of which is a destination
51  * (either a vsw_port or the vsw instance itself when plumbed as
52  * a network device) to which the multicast pkt should be forwarded.
53  */
54 typedef struct mfdb_ent {
55 	struct mfdb_ent		*nextp;		/* next entry in list */
56 	void			*d_addr;	/* address of dest */
57 	uint8_t			d_type;		/* destination type */
58 } mfdb_ent_t;
59 
60 #ifdef	__cplusplus
61 }
62 #endif
63 
64 #endif	/* _VSW_FDB_H */
65