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/* $OpenBSD: ioprbsvar.h,v 1.2 2005/09/15 05:33:39 krw Exp $ */
/*
* Copyright (c) 2001 Niklas Hallqvist
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _I2O_IOPRBSVAR_H_
#define _I2O_IOPRBSVAR_H_
/*
* A command contol block, one for each corresponding command index of the
* controller.
*/
struct ioprbs_ccb {
TAILQ_ENTRY(ioprbs_ccb) ic_chain;
struct scsi_xfer *ic_xs;
#if 0
struct aac_fib *ac_fib; /* FIB associated with this command */
bus_addr_t ac_fibphys; /* bus address of the FIB */
bus_dmamap_t ac_dmamap_xfer;
struct aac_sg_table *ac_sgtable;/* pointer to s/g table in command */
#endif
int ic_timeout;
u_int32_t ic_blockno;
u_int32_t ic_blockcnt;
u_int8_t ic_flags;
#define IOPRBS_ICF_WATCHDOG 0x1
#define IOPRBS_ICF_COMPLETED 0x2
};
/* XXX What is correct? */
#define IOPRBS_MAX_CCBS 256
struct ioprbs_softc {
struct device sc_dv; /* Generic device data */
struct scsi_link sc_link; /* Virtual SCSI bus for cache devs */
struct iop_initiator sc_ii;
struct iop_initiator sc_eventii;
int sc_flags;
int sc_secperunit; /* # sectors in total */
int sc_secsize; /* sector size in bytes */
int sc_maxxfer; /* max xfer size in bytes */
int sc_maxqueuecnt; /* maximum h/w queue depth */
int sc_queuecnt; /* current h/w queue depth */
struct ioprbs_ccb sc_ccbs[IOPRBS_MAX_CCBS];
TAILQ_HEAD(, ioprbs_ccb) sc_free_ccb, sc_ccbq;
/* commands on hold for controller resources */
TAILQ_HEAD(, ioprbs_ccb) sc_ready;
/* commands which have been returned by the controller */
LIST_HEAD(, scsi_xfer) sc_queue;
struct scsi_xfer *sc_queuelast;
};
#define IOPRBS_CLAIMED 0x01
#define IOPRBS_NEW_EVTMASK 0x02
#define IOPRBS_ENABLED 0x04
#define IOPRBS_TIMEOUT (30 * 1000)
#define IOPRBS_BLOCK_SIZE 512
/*
* Wait this long for a lost interrupt to get detected.
*/
#define IOPRBS_WATCH_TIMEOUT 10000 /* 10000 * 1ms = 10s */
/* XXX These have to become spinlocks in case of SMP */
#define IOPRBS_LOCK(sc) splbio()
#define IOPRBS_UNLOCK(sc, lock) splx(lock)
typedef int ioprbs_lock_t;
#endif /* !_I2O_IOPRMSVAR_H_ */
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