vnet_common.h revision bbfa0259e68b6b625e9e085053d41d620f185eee
/*
* 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 2008 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) + 2ULL)
/* initial send sequence number */
#define VNET_ISS 0x1
#define VNET_2K (1 << 11)
#define VNET_IPALIGN 6 /* padding for IP header alignment */
#define VNET_LDCALIGN 8 /* padding for ldc_mem_copy() align */
#define VNET_ROUNDUP_2K(n) (((n) + (VNET_2K - 1)) & ~(VNET_2K - 1))
#define VNET_NUM_HANDSHAKES 6 /* # of handshake attempts */
/* 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;
/*
* Vnet in-band descriptor. Used by those vnet clients
* such as OBP who do not use descriptor rings.
*/
typedef struct vnet_ibnd_desc {
vio_inband_desc_msg_hdr_t hdr;
/* payload */
uint32_t nbytes;
uint32_t ncookies;
ldc_mem_cookie_t memcookie[MAX_COOKIES];
} vnet_ibnd_desc_t;
/* exported functions */
uint64_t vnet_macaddr_strtoul(const uint8_t *macaddr);
void vnet_macaddr_ultostr(uint64_t value, uint8_t *macaddr);
mblk_t *vnet_vlan_insert_tag(mblk_t *mp, uint16_t vid);
mblk_t *vnet_vlan_remove_tag(mblk_t *mp);
int vnet_dring_entry_copy(vnet_public_desc_t *dst, vnet_public_desc_t *src,
uint8_t mtype, ldc_dring_handle_t handle, uint64_t start, uint64_t stop);
int vnet_dring_entry_set_dstate(vnet_public_desc_t *descp, uint8_t mtype,
ldc_dring_handle_t handle, uint64_t start, uint64_t stop, uint8_t dstate);
#ifdef __cplusplus
}
#endif
#endif /* _VNET_COMMON_H */