px_msi.h revision 5febcb4a56e199202aba97f9cf96d32cc0480a1f
/*
* 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
* 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 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_PX_MSI_H
#define _SYS_PX_MSI_H
#ifdef __cplusplus
extern "C" {
#endif
/*
* MSI data structure.
*/
typedef struct px_msi {
int msi_inum; /* INUM for this device */
} px_msi_t;
#define MSI_STATE_FREE 0x1
#define MSI_STATE_INUSE 0x2
/*
* MSI soft state structure.
*/
typedef struct px_msi_state {
/*
* px_msi_ranges
*/
typedef struct px_msi_ranges {
int msi_no;
int no_msis;
/*
* px_msi_address_ranges
*/
typedef struct px_msi_address_ranges {
#define PX_MSI_WIDTH 16
#define PX_MSIX_WIDTH 32
/*
* Default MSI configurations
*/
#define PX_DEFAULT_MSI_CNT 256
#define PX_DEFAULT_MSI_1ST_MSINUM 0
#define PX_DEFAULT_MSI_DATA_MASK 0xff
#define PX_MSI_4GIG_LIMIT 0xFFFFFFFFUL
int msi_count);
#ifdef __cplusplus
}
#endif
#endif /* _SYS_PX_MSI_H */