/*
 * 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 _CNEX_H
#define _CNEX_H

#pragma ident   "%Z%%M% %I%     %E% SMI"

#ifdef __cplusplus
extern "C" {
#endif

/*
 * Channel nexus "reg" spec
 */
typedef struct cnex_regspec {
        uint64_t physaddr;
        uint64_t size;
} cnex_regspec_t;

/*
 * Channel nexus interrupt map
 */
struct cnex_intr_map {
        ldc_dev_t       devclass;       /* LDC device class */
        uint32_t        pil;            /* PIL for device class */
        int32_t         weight;         /* Interrupt weight for device class */
};

/*
 * Channel interrupt information
 */
typedef struct cnex_intr {
        uint64_t        ino;            /* dev intr number */
        uint64_t        cpuid;          /* Target CPU */
        uint64_t        icookie;        /* dev intr cookie */
        uint64_t        id;             /* LDC channel ID  */
        dev_info_t      *dip;           /* LDC channel devinfo */
        uint_t          (*hdlr)();      /* intr handler */
        caddr_t         arg1;           /* intr argument 1 */
        caddr_t         arg2;           /* intr argument 2 */
        int32_t         weight;         /* intr weight */
} cnex_intr_t;

/* cnex interrupt types */
typedef enum {
        CNEX_TX_INTR = 1,               /* transmit interrupt */
        CNEX_RX_INTR                    /* receive interrupt */
} cnex_intrtype_t;

/*
 * Channel information
 */
typedef struct cnex_ldc {
        kmutex_t        lock;           /* Channel lock */
        struct cnex_ldc *next;

        uint64_t        id;
        ldc_dev_t       devclass;       /* Device class channel belongs to */

        cnex_intr_t     tx;             /* Transmit interrupt */
        cnex_intr_t     rx;             /* Receive interrupt */
        dev_info_t      *dip;           /* dip of the associated device */
} cnex_ldc_t;

/*
 * Channel nexus soft state pointer
 */
typedef struct cnex_soft_state {
        dev_info_t      *devi;
        uint64_t        cfghdl;         /* cnex config handle */
        kmutex_t        clist_lock;     /* lock to protect channel list */
        cnex_ldc_t      *clist;         /* list of registered channels */
} cnex_soft_state_t;

#ifdef __cplusplus
}
#endif

#endif /* _CNEX_H */