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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (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 (c) 2001 by Sun Microsystems, Inc.
* All rights reserved.
*/
#ifndef _LIBRSMWRSM_H
#define _LIBRSMWRSM_H
#pragma ident "%Z%%M% %I% %E% SMI"
#ifdef __cplusplus
extern "C" {
#endif
/* Private Header file for librsmwrsm.c */
#define WRSMLIB_CACHELINE_SIZE 64
#define WRSMLIB_ALIGN 64
#define WRSMLIB_CACHELINE_SHIFT 6
#define WRSMLIB_CACHELINE_MASK (WRSMLIB_CACHELINE_SIZE - 1)
/*
* number of controllers is set by the wrsm.conf file. as there is no
* way to dynamically relay this information to the plugin library,
* maxcontrollers is set here to the maximum number of controllers a system
* could ever have.
*/
#define MAXCONTROLLERS 64
#define STRIPE_STRIDE 128
#define SAFARI_OFFSET 64
#define MAXWCISTRIPING 4
#define STRIPE_MASK 1
typedef unsigned char wrsm_barrier_state_t;
#define BARRIER_CLOSED ((wrsm_barrier_state_t)0xff)
#define BARRIER_OPENED ((wrsm_barrier_state_t)0xfe)
#define BARRIER_FAILED ((wrsm_barrier_state_t)0xfd)
/*
* The following type may be allocated on the stack, then using the function
* wrsmlib_align a properly aligned message buffer is extracted.
* once wrsmlib_blkcopy is fixed - alignment here won't be needed
*/
typedef uint8_t wrsmlib_raw_message_t[WRSMLIB_CACHELINE_SIZE + WRSMLIB_ALIGN];
/* plugin specific structures */
typedef struct {
mutex_t segmutex;
boolean_t isloopback; /* when export cnode - local cnode */
rsm_barrier_mode_t barrier_mode; /* implicit or explicit barrier */
rsm_barrier_type_t barrier_type;
rsm_memseg_id_t segment_id;
caddr_t barrier_scratch_addr; /* barrier scratch page */
caddr_t barrier_ncslice_addr; /* page 0 of ncslice */
caddr_t route_info_addr; /* start of route change data */
uint32_t init_route_counter; /* set on open = *reconfig_ctr_addr */
uint32_t *route_counterp; /* route counter pointer - read only */
uint32_t *reroutingp; /* in process of ncslice rerouting - read only */
uint32_t *stripingp;
rsm_addr_t export_cnodeid;
} plugin_importseg_t;
/*
* this struct is a static array in the plugin. for each controller,
* it maintains the related opened (> 0) file descriptors and the count
* for the number of open request on that controller. the library will
* request the driver to close the controller on the last close request for
* that particular controller.
*/
typedef struct {
rsm_addr_t local_cnode;
int open_controller_count;
int fd;
} opened_controllers_t;
typedef struct {
wrsm_barrier_state_t state; /* whether opened or closed */
uint32_t route_counter; /* init in open and checked in close */
uint64_t wci_cluster_error_count_initial;
plugin_importseg_t *importsegp;
} plugin_barrier_t;
/*
* Performs a 64-byte block copy, used for remote read/write/interrupts.
* Assumes both addresses are 64-byte aligned, and does no checking.
*/
void
wrsmlib_blkcopy(void *src, void *dst, uint_t num_blocks);
/*
* Performs a 64-byte block store, used for remote writes.
* Assumes that the dst addr is 64-byte aligned, and does no checking.
*/
void
wrsmlib_blkwrite(void *src, void *dst, uint_t num_blocks);
#ifdef __cplusplus
}
#endif
#endif /* _LIBRSMWRSM_H */
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