vnet_common.h revision 1ae0874509b6811fdde1dfd46f0d93fd09867a3f
/*
* 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_COMMON_H
#define _VNET_COMMON_H
#pragma ident "%Z%%M% %I% %E% SMI"
#ifdef __cplusplus
extern "C" {
#endif
#include <sys/vio_common.h>
#include <sys/vio_mailbox.h>
#include <sys/ethernet.h>
/*
* This header file contains definitions common to LDoms Virtual Network
* server (vsw) and client (vnet).
*/
/* max # of cookies per frame size */
#define MAX_COOKIES ((ETHERMAX >> MMU_PAGESHIFT) + 2)
/* initial send sequence number */
#define VNET_ISS 0x1
/* vnet descriptor */
typedef struct vnet_public_desc {
vio_dring_entry_hdr_t hdr; /* descriptor header */
uint32_t nbytes; /* data length */
uint32_t ncookies; /* number of data cookies */
ldc_mem_cookie_t memcookie[MAX_COOKIES]; /* data cookies */
} vnet_public_desc_t;
/*
* VIO in-band descriptor. Used by those vio clients
* such as OBP who do not use descriptor rings.
*/
typedef struct vio_ibnd_desc {
vio_inband_desc_msg_hdr_t hdr;
/* payload */
uint32_t nbytes;
uint32_t ncookies;
ldc_mem_cookie_t memcookie[MAX_COOKIES];
} vio_ibnd_desc_t;
#ifdef __cplusplus
}
#endif
#endif /* _VNET_COMMON_H */