usr/src/uts/sun4v/sys/vsw_fdb.h

   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 2008 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 #define VLAN_ID_KEY(key)        ((mod_hash_key_t)(uintptr_t)(key))
  48
  49 /*
  50  * Multicast forwarding database (mFDB) is a hashtable
  51  * keyed off the mac address, with the value being a linked
  52  * list of mfdb_ent_t structures, each of which is a destination
  53  * (either a vsw_port or the vsw instance itself when plumbed as
  54  * a network device) to which the multicast pkt should be forwarded.
  55  */
  56 typedef struct mfdb_ent {
  57         struct mfdb_ent         *nextp;         /* next entry in list */
  58         void                    *d_addr;        /* address of dest */
  59         uint8_t                 d_type;         /* destination type */
  60 } mfdb_ent_t;
  61
  62 /*
  63  * Forwarding database entry. Each member port of a vsw will have an entry in
  64  * the vsw's fdb. Ref count is bumped up while sending a packet destined to a
  65  * port corresponding to the fdb entry.
  66  */
  67 typedef struct vsw_fdbe {
  68         void            *portp; /* pointer to the vnet_port */
  69         uint32_t        refcnt; /* reference count */
  70 } vsw_fdbe_t;
  71
  72 #ifdef  __cplusplus
  73 }
  74 #endif
  75
  76 #endif  /* _VSW_FDB_H */