2001-03-06 21:43:46 +00:00
|
|
|
|
/*-
|
This is the much rumoured ATA mkIII update that I've been working on.
o ATA is now fully newbus'd and split into modules.
This means that on a modern system you just load "atapci and ata"
to get the base support, and then one or more of the device
subdrivers "atadisk atapicd atapifd atapist ataraid".
All can be loaded/unloaded anytime, but for obvious reasons you
dont want to unload atadisk when you have mounted filesystems.
o The device identify part of the probe has been rewritten to fix
the problems with odd devices the old had, and to try to remove
so of the long delays some HW could provoke. Also probing is done
without the need for interrupts, making earlier probing possible.
o SATA devices can be hot inserted/removed and devices will be created/
removed in /dev accordingly.
NOTE: only supported on controllers that has this feature:
Promise and Silicon Image for now.
On other controllers the usual atacontrol detach/attach dance is
still needed.
o Support for "atomic" composite ATA requests used for RAID.
o ATA RAID support has been rewritten and and now supports these
metadata formats:
"Adaptec HostRAID"
"Highpoint V2 RocketRAID"
"Highpoint V3 RocketRAID"
"Intel MatrixRAID"
"Integrated Technology Express"
"LSILogic V2 MegaRAID"
"LSILogic V3 MegaRAID"
"Promise FastTrak"
"Silicon Image Medley"
"FreeBSD PseudoRAID"
o Update the ioctl API to match new RAID levels etc.
o Update atacontrol to know about the new RAID levels etc
NOTE: you need to recompile atacontrol with the new sys/ata.h,
make world will take care of that.
NOTE2: that rebuild is done differently from the old system as
the rebuild is now done piggybacked on read requests to the
array, so atacontrol simply starts a background "dd" to rebuild
the array.
o The reinit code has been worked over to be much more robust.
o The timeout code has been overhauled for races.
o Support of new chipsets.
o Lots of fixes for bugs found while doing the modulerization and
reviewing the old code.
Missing or changed features from current ATA:
o atapi-cd no longer has support for ATAPI changers. Todays its
much cheaper and alot faster to copy those CD images to disk
and serve them from there. Besides they dont seem to be made
anymore, maybe for that exact reason.
o ATA RAID can only read metadata from all the above metadata formats,
not write all of them (Promise and Highpoint V2 so far). This means
that arrays can be picked up from the BIOS, but they cannot be
created from FreeBSD. There is more to it than just the missing
write metadata support, those formats are not unique to a given
controller like Promise and Highpoint formats, instead they exist
for several types, and even worse, some controllers can have
different formats and its impossible to tell which one.
The outcome is that we cannot reliably create the metadata of those
formats and be sure the controller BIOS will understand it.
However write support is needed to update/fail/rebuild the arrays
properly so it sits fairly high on the TODO list.
o So far atapicam is not supported with these changes. When/if this
will change is up to the maintainer of atapi-cam so go there for
questions.
HW donated by: Webveveriet AS
HW donated by: Frode Nordahl
HW donated by: Yahoo!
HW donated by: Sentex
Patience by: Vife and my boys (and even the cats)
2005-03-30 12:03:40 +00:00
|
|
|
|
* Copyright (c) 1998 - 2005 S<EFBFBD>ren Schmidt <sos@FreeBSD.org>
|
2001-03-06 21:43:46 +00:00
|
|
|
|
* 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,
|
|
|
|
|
* without modification, immediately at the beginning of the file.
|
|
|
|
|
* 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. 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.
|
|
|
|
|
*/
|
|
|
|
|
|
2003-08-24 17:55:58 +00:00
|
|
|
|
#include <sys/cdefs.h>
|
|
|
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
|
|
2001-03-06 21:43:46 +00:00
|
|
|
|
#include <sys/param.h>
|
|
|
|
|
#include <sys/systm.h>
|
2003-03-03 11:15:32 +00:00
|
|
|
|
#include <sys/ata.h>
|
2001-03-06 21:43:46 +00:00
|
|
|
|
#include <sys/kernel.h>
|
|
|
|
|
#include <sys/module.h>
|
|
|
|
|
#include <sys/bus.h>
|
|
|
|
|
#include <sys/malloc.h>
|
2004-01-11 22:08:34 +00:00
|
|
|
|
#include <sys/sema.h>
|
2003-08-24 09:22:26 +00:00
|
|
|
|
#include <sys/taskqueue.h>
|
2004-01-14 21:26:35 +00:00
|
|
|
|
#include <vm/uma.h>
|
2001-03-06 21:43:46 +00:00
|
|
|
|
#include <machine/stdarg.h>
|
|
|
|
|
#include <machine/resource.h>
|
|
|
|
|
#include <machine/bus.h>
|
|
|
|
|
#include <sys/rman.h>
|
|
|
|
|
#include <dev/ata/ata-all.h>
|
2003-10-07 04:26:14 +00:00
|
|
|
|
#include <dev/pccard/pccard_cis.h>
|
2002-01-28 13:12:16 +00:00
|
|
|
|
#include <dev/pccard/pccardreg.h>
|
|
|
|
|
#include <dev/pccard/pccardvar.h>
|
2005-04-13 07:14:17 +00:00
|
|
|
|
#include <ata_if.h>
|
2002-01-28 13:12:16 +00:00
|
|
|
|
|
2004-05-27 03:49:45 +00:00
|
|
|
|
#include "pccarddevs.h"
|
|
|
|
|
|
2003-04-26 22:19:02 +00:00
|
|
|
|
static const struct pccard_product ata_pccard_products[] = {
|
2005-06-24 14:36:54 +00:00
|
|
|
|
PCMCIA_CARD(FREECOM, PCCARDIDE),
|
|
|
|
|
PCMCIA_CARD(EXP, EXPMULTIMEDIA),
|
|
|
|
|
PCMCIA_CARD(IODATA3, CBIDE2),
|
|
|
|
|
PCMCIA_CARD(OEM2, CDROM1),
|
|
|
|
|
PCMCIA_CARD(OEM2, IDE),
|
|
|
|
|
PCMCIA_CARD(PANASONIC, KXLC005),
|
|
|
|
|
PCMCIA_CARD(TEAC, IDECARDII),
|
2003-04-26 22:19:02 +00:00
|
|
|
|
{NULL}
|
|
|
|
|
};
|
|
|
|
|
|
2002-01-28 13:12:16 +00:00
|
|
|
|
static int
|
2005-09-22 18:41:56 +00:00
|
|
|
|
ata_pccard_probe(device_t dev)
|
2002-01-28 13:12:16 +00:00
|
|
|
|
{
|
2003-04-26 22:19:02 +00:00
|
|
|
|
const struct pccard_product *pp;
|
Major update of the ATA RAID code, part 1:
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.
2002-02-04 19:23:40 +00:00
|
|
|
|
u_int32_t fcn = PCCARD_FUNCTION_UNSPEC;
|
|
|
|
|
int error = 0;
|
2002-01-28 13:12:16 +00:00
|
|
|
|
|
2005-04-25 07:57:04 +00:00
|
|
|
|
if ((error = pccard_get_function(dev, &fcn)))
|
|
|
|
|
return error;
|
2002-01-28 13:12:16 +00:00
|
|
|
|
|
|
|
|
|
/* if it says its a disk we should register it */
|
|
|
|
|
if (fcn == PCCARD_FUNCTION_DISK)
|
2005-04-25 07:57:04 +00:00
|
|
|
|
return 0;
|
2002-01-28 13:12:16 +00:00
|
|
|
|
|
2003-08-24 09:22:26 +00:00
|
|
|
|
/* match other devices here, primarily cdrom/dvd rom */
|
2003-04-26 22:19:02 +00:00
|
|
|
|
if ((pp = pccard_product_lookup(dev, ata_pccard_products,
|
2003-08-25 09:01:49 +00:00
|
|
|
|
sizeof(ata_pccard_products[0]), NULL))) {
|
2003-04-26 22:19:02 +00:00
|
|
|
|
if (pp->pp_name)
|
|
|
|
|
device_set_desc(dev, pp->pp_name);
|
2005-04-25 07:57:04 +00:00
|
|
|
|
return 0;
|
2003-04-26 22:19:02 +00:00
|
|
|
|
}
|
2005-04-25 07:57:04 +00:00
|
|
|
|
return ENXIO;
|
2002-01-28 13:12:16 +00:00
|
|
|
|
}
|
2001-03-06 21:43:46 +00:00
|
|
|
|
|
|
|
|
|
static int
|
2005-09-22 18:41:56 +00:00
|
|
|
|
ata_pccard_attach(device_t dev)
|
2001-03-06 21:43:46 +00:00
|
|
|
|
{
|
Major update of the ATA RAID code, part 1:
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.
2002-02-04 19:23:40 +00:00
|
|
|
|
struct ata_channel *ch = device_get_softc(dev);
|
2005-04-06 10:22:56 +00:00
|
|
|
|
struct resource *io, *ctlio;
|
2004-11-10 00:33:05 +00:00
|
|
|
|
int i, rid;
|
2001-03-06 21:43:46 +00:00
|
|
|
|
|
|
|
|
|
/* allocate the io range to get start and length */
|
|
|
|
|
rid = ATA_IOADDR_RID;
|
2005-04-25 07:57:04 +00:00
|
|
|
|
if (!(io = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0,
|
|
|
|
|
ATA_IOSIZE, RF_ACTIVE)))
|
2003-03-29 13:37:09 +00:00
|
|
|
|
return ENXIO;
|
2001-03-06 21:43:46 +00:00
|
|
|
|
|
2003-03-29 13:37:09 +00:00
|
|
|
|
/* setup the resource vectors */
|
2005-04-06 10:22:56 +00:00
|
|
|
|
for (i = ATA_DATA; i <= ATA_COMMAND; i++) {
|
2003-03-29 13:37:09 +00:00
|
|
|
|
ch->r_io[i].res = io;
|
|
|
|
|
ch->r_io[i].offset = i;
|
|
|
|
|
}
|
2005-04-06 10:22:56 +00:00
|
|
|
|
ch->r_io[ATA_IDX_ADDR].res = io;
|
2003-11-30 16:27:59 +00:00
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* if we got more than the default ATA_IOSIZE ports, this is a device
|
2005-04-06 10:22:56 +00:00
|
|
|
|
* where ctlio is located at offset 14 into "normal" io space.
|
2003-11-30 16:27:59 +00:00
|
|
|
|
*/
|
2004-11-10 00:33:05 +00:00
|
|
|
|
if (rman_get_size(io) > ATA_IOSIZE) {
|
2005-04-06 10:22:56 +00:00
|
|
|
|
ch->r_io[ATA_CONTROL].res = io;
|
|
|
|
|
ch->r_io[ATA_CONTROL].offset = 14;
|
2003-11-30 16:27:59 +00:00
|
|
|
|
}
|
|
|
|
|
else {
|
2005-04-06 10:22:56 +00:00
|
|
|
|
rid = ATA_CTLADDR_RID;
|
2005-04-25 07:57:04 +00:00
|
|
|
|
if (!(ctlio = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0,
|
|
|
|
|
ATA_CTLIOSIZE, RF_ACTIVE))) {
|
2003-11-30 16:27:59 +00:00
|
|
|
|
bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, io);
|
|
|
|
|
for (i = ATA_DATA; i < ATA_MAX_RES; i++)
|
|
|
|
|
ch->r_io[i].res = NULL;
|
|
|
|
|
return ENXIO;
|
|
|
|
|
}
|
2005-04-06 10:22:56 +00:00
|
|
|
|
ch->r_io[ATA_CONTROL].res = ctlio;
|
|
|
|
|
ch->r_io[ATA_CONTROL].offset = 0;
|
2003-11-30 16:27:59 +00:00
|
|
|
|
}
|
2005-04-30 16:22:07 +00:00
|
|
|
|
ata_default_registers(dev);
|
2001-03-06 21:43:46 +00:00
|
|
|
|
|
2003-03-29 13:37:09 +00:00
|
|
|
|
/* initialize softc for this channel */
|
Major update of the ATA RAID code, part 1:
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.
2002-02-04 19:23:40 +00:00
|
|
|
|
ch->unit = 0;
|
|
|
|
|
ch->flags |= (ATA_USE_16BIT | ATA_NO_SLAVE);
|
2005-04-30 16:22:07 +00:00
|
|
|
|
ata_generic_hw(dev);
|
2001-03-06 21:43:46 +00:00
|
|
|
|
return ata_probe(dev);
|
|
|
|
|
}
|
|
|
|
|
|
2003-03-29 13:37:09 +00:00
|
|
|
|
static int
|
|
|
|
|
ata_pccard_detach(device_t dev)
|
|
|
|
|
{
|
|
|
|
|
struct ata_channel *ch = device_get_softc(dev);
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
ata_detach(dev);
|
2005-04-06 10:22:56 +00:00
|
|
|
|
if (ch->r_io[ATA_CONTROL].res != ch->r_io[ATA_DATA].res)
|
|
|
|
|
bus_release_resource(dev, SYS_RES_IOPORT, ATA_CTLADDR_RID,
|
|
|
|
|
ch->r_io[ATA_CONTROL].res);
|
2004-11-10 00:33:05 +00:00
|
|
|
|
bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID,
|
|
|
|
|
ch->r_io[ATA_DATA].res);
|
2003-05-12 15:26:05 +00:00
|
|
|
|
for (i = ATA_DATA; i < ATA_MAX_RES; i++)
|
2003-03-29 13:37:09 +00:00
|
|
|
|
ch->r_io[i].res = NULL;
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
2001-03-06 21:43:46 +00:00
|
|
|
|
static device_method_t ata_pccard_methods[] = {
|
|
|
|
|
/* device interface */
|
2005-09-22 18:41:56 +00:00
|
|
|
|
DEVMETHOD(device_probe, ata_pccard_probe),
|
|
|
|
|
DEVMETHOD(device_attach, ata_pccard_attach),
|
2005-04-13 07:14:17 +00:00
|
|
|
|
DEVMETHOD(device_detach, ata_pccard_detach),
|
This is the much rumoured ATA mkIII update that I've been working on.
o ATA is now fully newbus'd and split into modules.
This means that on a modern system you just load "atapci and ata"
to get the base support, and then one or more of the device
subdrivers "atadisk atapicd atapifd atapist ataraid".
All can be loaded/unloaded anytime, but for obvious reasons you
dont want to unload atadisk when you have mounted filesystems.
o The device identify part of the probe has been rewritten to fix
the problems with odd devices the old had, and to try to remove
so of the long delays some HW could provoke. Also probing is done
without the need for interrupts, making earlier probing possible.
o SATA devices can be hot inserted/removed and devices will be created/
removed in /dev accordingly.
NOTE: only supported on controllers that has this feature:
Promise and Silicon Image for now.
On other controllers the usual atacontrol detach/attach dance is
still needed.
o Support for "atomic" composite ATA requests used for RAID.
o ATA RAID support has been rewritten and and now supports these
metadata formats:
"Adaptec HostRAID"
"Highpoint V2 RocketRAID"
"Highpoint V3 RocketRAID"
"Intel MatrixRAID"
"Integrated Technology Express"
"LSILogic V2 MegaRAID"
"LSILogic V3 MegaRAID"
"Promise FastTrak"
"Silicon Image Medley"
"FreeBSD PseudoRAID"
o Update the ioctl API to match new RAID levels etc.
o Update atacontrol to know about the new RAID levels etc
NOTE: you need to recompile atacontrol with the new sys/ata.h,
make world will take care of that.
NOTE2: that rebuild is done differently from the old system as
the rebuild is now done piggybacked on read requests to the
array, so atacontrol simply starts a background "dd" to rebuild
the array.
o The reinit code has been worked over to be much more robust.
o The timeout code has been overhauled for races.
o Support of new chipsets.
o Lots of fixes for bugs found while doing the modulerization and
reviewing the old code.
Missing or changed features from current ATA:
o atapi-cd no longer has support for ATAPI changers. Todays its
much cheaper and alot faster to copy those CD images to disk
and serve them from there. Besides they dont seem to be made
anymore, maybe for that exact reason.
o ATA RAID can only read metadata from all the above metadata formats,
not write all of them (Promise and Highpoint V2 so far). This means
that arrays can be picked up from the BIOS, but they cannot be
created from FreeBSD. There is more to it than just the missing
write metadata support, those formats are not unique to a given
controller like Promise and Highpoint formats, instead they exist
for several types, and even worse, some controllers can have
different formats and its impossible to tell which one.
The outcome is that we cannot reliably create the metadata of those
formats and be sure the controller BIOS will understand it.
However write support is needed to update/fail/rebuild the arrays
properly so it sits fairly high on the TODO list.
o So far atapicam is not supported with these changes. When/if this
will change is up to the maintainer of atapi-cam so go there for
questions.
HW donated by: Webveveriet AS
HW donated by: Frode Nordahl
HW donated by: Yahoo!
HW donated by: Sentex
Patience by: Vife and my boys (and even the cats)
2005-03-30 12:03:40 +00:00
|
|
|
|
|
2001-03-06 21:43:46 +00:00
|
|
|
|
{ 0, 0 }
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
static driver_t ata_pccard_driver = {
|
|
|
|
|
"ata",
|
|
|
|
|
ata_pccard_methods,
|
Major update of the ATA RAID code, part 1:
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.
2002-02-04 19:23:40 +00:00
|
|
|
|
sizeof(struct ata_channel),
|
2001-03-06 21:43:46 +00:00
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
DRIVER_MODULE(ata, pccard, ata_pccard_driver, ata_devclass, 0, 0);
|
This is the much rumoured ATA mkIII update that I've been working on.
o ATA is now fully newbus'd and split into modules.
This means that on a modern system you just load "atapci and ata"
to get the base support, and then one or more of the device
subdrivers "atadisk atapicd atapifd atapist ataraid".
All can be loaded/unloaded anytime, but for obvious reasons you
dont want to unload atadisk when you have mounted filesystems.
o The device identify part of the probe has been rewritten to fix
the problems with odd devices the old had, and to try to remove
so of the long delays some HW could provoke. Also probing is done
without the need for interrupts, making earlier probing possible.
o SATA devices can be hot inserted/removed and devices will be created/
removed in /dev accordingly.
NOTE: only supported on controllers that has this feature:
Promise and Silicon Image for now.
On other controllers the usual atacontrol detach/attach dance is
still needed.
o Support for "atomic" composite ATA requests used for RAID.
o ATA RAID support has been rewritten and and now supports these
metadata formats:
"Adaptec HostRAID"
"Highpoint V2 RocketRAID"
"Highpoint V3 RocketRAID"
"Intel MatrixRAID"
"Integrated Technology Express"
"LSILogic V2 MegaRAID"
"LSILogic V3 MegaRAID"
"Promise FastTrak"
"Silicon Image Medley"
"FreeBSD PseudoRAID"
o Update the ioctl API to match new RAID levels etc.
o Update atacontrol to know about the new RAID levels etc
NOTE: you need to recompile atacontrol with the new sys/ata.h,
make world will take care of that.
NOTE2: that rebuild is done differently from the old system as
the rebuild is now done piggybacked on read requests to the
array, so atacontrol simply starts a background "dd" to rebuild
the array.
o The reinit code has been worked over to be much more robust.
o The timeout code has been overhauled for races.
o Support of new chipsets.
o Lots of fixes for bugs found while doing the modulerization and
reviewing the old code.
Missing or changed features from current ATA:
o atapi-cd no longer has support for ATAPI changers. Todays its
much cheaper and alot faster to copy those CD images to disk
and serve them from there. Besides they dont seem to be made
anymore, maybe for that exact reason.
o ATA RAID can only read metadata from all the above metadata formats,
not write all of them (Promise and Highpoint V2 so far). This means
that arrays can be picked up from the BIOS, but they cannot be
created from FreeBSD. There is more to it than just the missing
write metadata support, those formats are not unique to a given
controller like Promise and Highpoint formats, instead they exist
for several types, and even worse, some controllers can have
different formats and its impossible to tell which one.
The outcome is that we cannot reliably create the metadata of those
formats and be sure the controller BIOS will understand it.
However write support is needed to update/fail/rebuild the arrays
properly so it sits fairly high on the TODO list.
o So far atapicam is not supported with these changes. When/if this
will change is up to the maintainer of atapi-cam so go there for
questions.
HW donated by: Webveveriet AS
HW donated by: Frode Nordahl
HW donated by: Yahoo!
HW donated by: Sentex
Patience by: Vife and my boys (and even the cats)
2005-03-30 12:03:40 +00:00
|
|
|
|
MODULE_DEPEND(ata, ata, 1, 1, 1);
|