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6ddce9039b
Overhaul of the attach/detach code and structures, there were some nasty bugs in the old implementation. This made it possible to collapse the ATA/ATAPI device control structures into one generic structure. A note here, the kernel is NOT ready for detach of active devices, it fails all over in random places, but for inactive devices it works. However for ATA RAID this works, since the RAID abstration layer insulates the buggy^H^H^H^H^H^Hfragile device subsystem from the physical disks. Proberly detect the RAID's from the BIOS, and mark critical RAID1 arrays as such, but continue if there is enough of the mirror left to do so. Properly fail arrays on a live system. For RAID0 that means return EIO, and for RAID1 it means continue on the still working part of the mirror if possible, else return EIO. If the state changes, log this to the console. Allow for Promise & Highpoint controllers/arrays to coexist on the same machine. It is not possible to distribute arrays over different makes of controllers though. If Promise SuperSwap enclosures are used, signal disk state on the status LED on the front. Misc fixes that I had lying around for various minor bugs. Sponsored by: Advanis Inc.
136 lines
4.4 KiB
C
136 lines
4.4 KiB
C
/*-
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* Copyright (c) 1998,1999,2000,2001,2002 Søren Schmidt <sos@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer,
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* without modification, immediately at the beginning of the file.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/disk.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <sys/bio.h>
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#include <sys/malloc.h>
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#include <sys/devicestat.h>
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#include <sys/sysctl.h>
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#include <machine/stdarg.h>
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#include <machine/resource.h>
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#include <machine/bus.h>
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#include <sys/rman.h>
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#include <dev/ata/ata-all.h>
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#include <dev/pccard/pccardreg.h>
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#include <dev/pccard/pccardvar.h>
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#include <dev/pccard/pccarddevs.h>
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static int
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ata_pccard_match(device_t dev)
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{
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u_int32_t fcn = PCCARD_FUNCTION_UNSPEC;
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int error = 0;
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error = pccard_get_function(dev, &fcn);
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if (error != 0)
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return (error);
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/* if it says its a disk we should register it */
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if (fcn == PCCARD_FUNCTION_DISK)
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return (0);
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/* other devices might need to be matched here */
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return(ENXIO);
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}
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static int
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ata_pccard_probe(device_t dev)
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{
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struct ata_channel *ch = device_get_softc(dev);
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struct resource *io;
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int rid, len, start, end;
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u_long tmp;
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/* allocate the io range to get start and length */
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rid = ATA_IOADDR_RID;
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len = bus_get_resource_count(dev, SYS_RES_IOPORT, rid);
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io = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0,
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ATA_IOSIZE, RF_ACTIVE);
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if (!io)
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return ENOMEM;
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/* reallocate the io address to only cover the io ports */
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start = rman_get_start(io);
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end = start + ATA_IOSIZE - 1;
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bus_release_resource(dev, SYS_RES_IOPORT, rid, io);
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io = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
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start, end, ATA_IOSIZE, RF_ACTIVE);
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bus_release_resource(dev, SYS_RES_IOPORT, rid, io);
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/*
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* if we got more than the default ATA_IOSIZE ports, this is likely
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* a pccard system where the altio ports are located at offset 14
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* otherwise its the normal altio offset
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*/
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if (bus_get_resource(dev, SYS_RES_IOPORT, ATA_ALTADDR_RID, &tmp, &tmp)) {
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if (len > ATA_IOSIZE) {
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bus_set_resource(dev, SYS_RES_IOPORT, ATA_ALTADDR_RID,
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start + ATA_PCCARD_ALTOFFSET, ATA_ALTIOSIZE);
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}
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else {
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bus_set_resource(dev, SYS_RES_IOPORT, ATA_ALTADDR_RID,
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start + ATA_ALTOFFSET, ATA_ALTIOSIZE);
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}
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}
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else
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return ENOMEM;
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ch->unit = 0;
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ch->flags |= (ATA_USE_16BIT | ATA_NO_SLAVE);
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return ata_probe(dev);
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}
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static device_method_t ata_pccard_methods[] = {
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/* device interface */
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DEVMETHOD(device_probe, pccard_compat_probe),
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DEVMETHOD(device_attach, pccard_compat_attach),
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DEVMETHOD(device_detach, ata_detach),
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/* Card interface */
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DEVMETHOD(card_compat_match, ata_pccard_match),
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DEVMETHOD(card_compat_probe, ata_pccard_probe),
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DEVMETHOD(card_compat_attach, ata_attach),
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{ 0, 0 }
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};
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static driver_t ata_pccard_driver = {
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"ata",
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ata_pccard_methods,
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sizeof(struct ata_channel),
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};
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DRIVER_MODULE(ata, pccard, ata_pccard_driver, ata_devclass, 0, 0);
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