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/*
* Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it would be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* Further, this software is distributed without any warranty that it is
* free of the rightful claim of any third person regarding infringement
* or the like. Any license provided herein, whether implied or
* otherwise, applies only to this software file. Patent licenses, if
* any, provided herein do not apply to combinations of this program with
* other software, or any other product whatsoever.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write the Free Software Foundation, Inc., 59
* Temple Place - Suite 330, Boston MA 02111-1307, USA.
*
* Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
* Mountain View, CA 94043, or:
*
* http://www.sgi.com
*
* For further information regarding this notice, see:
*
* http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
*/
#ifndef _LINUX_BEHAVIOR_I
#define _LINUX_BEHAVIOR_I
#if defined(CELL_CAPABLE) || defined(CELL_PREPARE)
/*
* Behavior head lock structure.
* This structure contains the mrlock for the behavior head
* as well as the deferred callout info. A pointer to
* this structure is located in the behavior head.
*/
struct bhv_head_lock;
typedef struct {
mrlock_t bhl_lock; /* MUST BE FIRST - behavior head lock */
kcallouthead_t bhl_ucallout; /* deferred update callout queue */
lock_t bhl_ucqlock; /* update callout queue lock */
#ifdef BLALOG
struct bhv_head *bhl_headp; /* pointer to behavior head */
#endif
} bhv_head_lock_t;
#define MR_TO_BHVL(mrp) ((bhv_head_lock_t*) (mrp))
#endif /* defined(CELL_CAPABLE) || defined(CELL_PREPARE) */
/*
* Behavior head. Head of the chain of behaviors.
* Contained within each virtualized object data structure.
*/
typedef struct bhv_head {
struct bhv_desc *bh_first; /* first behavior in chain */
#if defined(CELL_CAPABLE) || defined(CELL_PREPARE)
bhv_head_lock_t *bh_lockp; /* pointer to lock info struct */
void *bh_unused1;
__u64 bh_unused2;
#endif
} bhv_head_t;
/*
* Behavior descriptor. Descriptor associated with each behavior.
* Contained within the behavior's private data structure.
*/
typedef struct bhv_desc {
void *bd_pdata; /* private data for this behavior */
void *bd_vobj; /* virtual object associated with */
void *bd_ops; /* ops for this behavior */
struct bhv_desc *bd_next; /* next behavior in chain */
} bhv_desc_t;
/*
* Behavior identity field. A behavior's identity determines the position
* where it lives within a behavior chain, and it's always the first field
* of the behavior's ops vector. The optional id field further identifies the
* subsystem responsible for the behavior.
*/
typedef struct bhv_identity {
__u16 bi_id; /* owning subsystem id */
__u16 bi_position; /* position in chain */
} bhv_identity_t;
typedef bhv_identity_t bhv_position_t;
#ifdef CELL_CAPABLE
#define BHV_IDENTITY_INIT(id,pos) {id, pos}
#else
#define BHV_IDENTITY_INIT(id,pos) {0, pos}
#endif
#define BHV_IDENTITY_INIT_POSITION(pos) BHV_IDENTITY_INIT(0, pos)
/*
* Define boundaries of position values.
*/
#define BHV_POSITION_INVALID 0 /* invalid position number */
#define BHV_POSITION_BASE 1 /* base (last) implementation layer */
#define BHV_POSITION_TOP 63 /* top (first) implementation layer */
#endif /* _LINUX_BEHAVIOR_I */
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