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NetBSD/sys/dev/mca/edcvar.h

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The header part of driver overhault: * simplify and clean the attach code a lot, and support the 'drive' locator * pass proper dev_t to readdisklabel() - formerly, the passed value was completely broken (used incorrect major and wrong minor), but worked by accident * worker thread is now spawned per controller, rather than per-drive; i/o cannot be done concurrently by different drivers, only one i/o can be pending at any time * simplify the command queue code, just sleep appropriately when !poll case, g/c 'async' code formerly needed, move the bio code from ed_mca.c to edc_mca.c:edc_bio() * other misc cleanups
2001-11-24 15:46:15 +03:00
/* $NetBSD: edcvar.h,v 1.4 2001/11/24 12:46:15 jdolecek Exp $ */
Add a driver for IBM ESDI disk controllers. Tested with IBM Integ. ESDI Fixed Disk & Controller only at the moment. This driver still needs some touchup (error recovery is not quite good, MCA DMA controller goo should be moved to driver independant location), but is working enough to be usable for others. And I want this under CVS control :) Thanks to Scott Telford <st@epcc.ed.ac.uk> for providing me docs for these devices (IBM DASD Storage Interface Specification for MCA rev. 2.2).
2001-04-19 11:30:24 +04:00
/*
* Copyright (c) 2001 The NetBSD Foundation, Inc.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jaromir Dolecek.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
*/
struct ed_attach_args {
The header part of driver overhault: * simplify and clean the attach code a lot, and support the 'drive' locator * pass proper dev_t to readdisklabel() - formerly, the passed value was completely broken (used incorrect major and wrong minor), but worked by accident * worker thread is now spawned per controller, rather than per-drive; i/o cannot be done concurrently by different drivers, only one i/o can be pending at any time * simplify the command queue code, just sleep appropriately when !poll case, g/c 'async' code formerly needed, move the bio code from ed_mca.c to edc_mca.c:edc_bio() * other misc cleanups
2001-11-24 15:46:15 +03:00
int edc_drive;
Add a driver for IBM ESDI disk controllers. Tested with IBM Integ. ESDI Fixed Disk & Controller only at the moment. This driver still needs some touchup (error recovery is not quite good, MCA DMA controller goo should be moved to driver independant location), but is working enough to be usable for others. And I want this under CVS control :) Thanks to Scott Telford <st@epcc.ed.ac.uk> for providing me docs for these devices (IBM DASD Storage Interface Specification for MCA rev. 2.2).
2001-04-19 11:30:24 +04:00
};
The header part of driver overhault: * simplify and clean the attach code a lot, and support the 'drive' locator * pass proper dev_t to readdisklabel() - formerly, the passed value was completely broken (used incorrect major and wrong minor), but worked by accident * worker thread is now spawned per controller, rather than per-drive; i/o cannot be done concurrently by different drivers, only one i/o can be pending at any time * simplify the command queue code, just sleep appropriately when !poll case, g/c 'async' code formerly needed, move the bio code from ed_mca.c to edc_mca.c:edc_bio() * other misc cleanups
2001-11-24 15:46:15 +03:00
#define edccf_unit cf_loc[EDCCF_DRIVE]
Use "edc" instead of "dasd". As pointed out by Soren, dasd doesn't mean anything special in IBM-talk. And edc better matches prior art, too.
2001-04-19 21:17:28 +04:00
int edc_run_cmd __P((struct edc_mca_softc *, int,
The header part of driver overhault: * simplify and clean the attach code a lot, and support the 'drive' locator * pass proper dev_t to readdisklabel() - formerly, the passed value was completely broken (used incorrect major and wrong minor), but worked by accident * worker thread is now spawned per controller, rather than per-drive; i/o cannot be done concurrently by different drivers, only one i/o can be pending at any time * simplify the command queue code, just sleep appropriately when !poll case, g/c 'async' code formerly needed, move the bio code from ed_mca.c to edc_mca.c:edc_bio() * other misc cleanups
2001-11-24 15:46:15 +03:00
int, u_int16_t [], int, int));
void edc_add_disk __P((struct edc_mca_softc *, struct ed_softc *));
int edc_bio __P((struct edc_mca_softc *, struct ed_softc *,
void *, size_t, daddr_t, int, int));