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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _VNET_H
#define _VNET_H
#pragma ident "%Z%%M% %I% %E% SMI"
#ifdef __cplusplus
extern "C" {
#endif
#define VNET_SUCCESS (0) /* successful return */
#define VNET_FAILURE (-1) /* unsuccessful return */
#define KMEM_FREE(_p) kmem_free((_p), sizeof (*(_p)))
#define VNET_NTXDS 512 /* power of 2 tx descriptors */
#define VNET_LDCWD_INTERVAL 1000 /* watchdog freq in msec */
#define VNET_LDCWD_TXTIMEOUT 1000 /* tx timeout in msec */
#define VNET_LDC_MTU 64 /* ldc mtu */
#define VNET_NRBUFS 512 /* number of receive bufs */
/*
* vnet proxy transport layer information. There is one instance of this for
* every transport being used by a vnet device and a list of these transports
* is maintained by vnet.
*/
typedef struct vp_tl {
struct vp_tl *nextp; /* next in list */
mac_register_t *macp; /* transport ops */
char name[LIFNAMSIZ]; /* device name */
major_t major; /* driver major # */
uint_t instance; /* dev instance */
} vp_tl_t;
/*
* Forwarding database (FDB) entry, used by vnet to provide switching
* functionality. Each fdb entry corresponds to a destination vnet device
* within the ldoms which is directly reachable by invoking a transmit
* function provided by a vnet proxy transport layer. Currently, the generic
* transport layer adds/removes/modifies entries in fdb.
*/
typedef struct fdb {
struct fdb *nextp; /* next entry in the list */
uint8_t macaddr[ETHERADDRL]; /* destination mac address */
mac_tx_t m_tx; /* transmit function */
void *txarg; /* arg to the transmit func */
} fdb_t;
/* FDB hash queue head */
typedef struct fdbf_s {
fdb_t *headp; /* head of fdb entries */
krwlock_t rwlock; /* protect the list */
} fdb_fanout_t;
#define VNET_NFDB_HASH 4 /* default number of hash queues in fdb */
#define VNET_NFDB_HASH_MAX 32 /* max number of hash queues in fdb */
/* Hash calculation using the mac address */
#define MACHASH(a, n) ((*(((uchar_t *)(a)) + 0) ^ \
*(((uchar_t *)(a)) + 1) ^ \
*(((uchar_t *)(a)) + 2) ^ \
*(((uchar_t *)(a)) + 3) ^ \
*(((uchar_t *)(a)) + 4) ^ \
*(((uchar_t *)(a)) + 5)) % (uint32_t)n)
/* rwlock macros */
#define READ_ENTER(x) rw_enter(x, RW_READER)
#define WRITE_ENTER(x) rw_enter(x, RW_WRITER)
#define RW_EXIT(x) rw_exit(x)
/*
* vnet instance state information
*/
typedef struct vnet {
int instance; /* instance # */
dev_info_t *dip; /* dev_info */
struct vnet *nextp; /* next in list */
mac_handle_t mh; /* handle to GLDv3 mac module */
uchar_t vendor_addr[ETHERADDRL]; /* orig macadr */
uchar_t curr_macaddr[ETHERADDRL]; /* current macadr */
vp_tl_t *tlp; /* list of vp_tl */
krwlock_t trwlock; /* lock for vp_tl list */
char vgen_name[MAXNAMELEN]; /* name of generic tl */
fdb_fanout_t *fdbhp; /* fdb hash queues */
int nfdb_hash; /* num fdb hash queues */
} vnet_t;
#ifdef __cplusplus
}
#endif
#endif /* _VNET_H */
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