Commit graph

492 commits

Author SHA1 Message Date
Jeff Garzik
8cdfb29c0c libata/IDE: remove combined mode quirk
Both old-IDE and libata should be able handle all controllers and
devices found using normal resource reservation methods.

This eliminates the awful, low-performing split-driver configuration
where old-IDE drove the PATA portion of a PCI device, in PIO-only mode,
and libata drove the SATA portion of the /same/ PCI device, in DMA mode.
Typically vendors would ship SATA hard drive / PATA optical
configuration, which would lend itself to slow (PIO-only) CD-ROM
performance.

For Intel users running in combined mode, it is now wholly dependent on
your driver choice (potentially link order, if you compile both drivers
in) whether old-IDE or libata will drive your hardware.

In either case, you will get full performance from both SATA and PATA
ports now, without having to pass a kernel command line parameter.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 14:15:59 -04:00
Jeff Garzik
e424675f15 [libata] turn on !IORDY filter
The previous commit erroneously noted that the !IORDY filter was turned
on.  No true, that change was split out into this commit.

Originally authored and signed-off-by Alan Cox.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 14:15:59 -04:00
Jeff Garzik
cffacd85bc [libata] sata_mv: support ->cable_detect
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 14:15:58 -04:00
Alan Cox
a76b62ca70 libata: Change prototype of mode_filter to remove ata_port*
With Tejun having added adev->ap some time ago we can get rid of the
almost unused port being passed to mode filters. And while we are
doing filters, lets turn on the !IORDY filter as well.

Signed-off-by: Alan Cox <alan@redhat.com>

With some hand massaging from
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 14:15:58 -04:00
Alan Cox
9d2c7c75f8 sata_sil: First step to removing ->post_set_mode
Now that we have ata_do_set_mode() available for drivers to use we don't
actually need ->post_set_mode() as the driver can wrap set_mode nicely
and do stuff before or after (eg PCMCIA needs before), so we can kill off
a method in all the structs

While I was at it I added kernel-doc to the function involved.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 14:15:58 -04:00
Alan Cox
432729f0b0 libata-core: Fix the iordy methods
This alone isn't sufficient to save the universe from prehistoric disks
and controllers but it is a first important step. Split off a separate
function to provide a mode filter when controller iordy is not available.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 14:15:58 -04:00
Alan
04351821b4 pata: expose set_mode method so it can be wrapped
This splits set_mode into do_set_mode and the wrapper so that a driver can
call the standard method inside its own.  This in theory also obsoletes
->post_set_mode().

Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Tejun Heo <htejun@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 14:15:58 -04:00
Alan Cox
fcc2f69a6f pata_hpt37x: Updates from drivers/ide work
Drag pata_hpt37x kicking and screaming in the direction of
drivers/ide/pci/hpt366.c and all the work that Sergei has been doing
there. Plenty left to be done but this is a good snapshot for folks to
work on and to review

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 14:15:58 -04:00
Jeff Garzik
a73984a0d5 [libata] More PATA driver ->cable_detect support
Roll-up of ->cable_detect feature addition patches, authored and
signed-off-by Alan Cox.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 14:15:57 -04:00
Alan Cox
fecfda5d88 pata_hpt366: support ->cable_detect
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 14:15:57 -04:00
Alan Cox
6bfed3fb03 pata_efar: support ->cable_detect
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 14:15:57 -04:00
Alan Cox
847086069c pata_atiixp: support ->cable_detect
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 14:15:57 -04:00
Alan Cox
d36a76482c pata_radisys: support cable_detect
Signed-off-by: Alan Cox <number6@the-village.bc.nu>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 14:15:57 -04:00
Alan Cox
745975c052 pata_sc1200: restore cable type
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 14:15:57 -04:00
Alan Cox
2a25dfe4f4 pata_rz1000: support cable_detect
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 14:15:57 -04:00
Alan Cox
570cb62dee pata_platform: Add cable_detect method
Signed-off-by: Alan Cox <number6@the-village.bc.nu>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 14:15:57 -04:00
Alan Cox
e2a9752a21 sata_promise: Switch to cable method, clean up some bits as a result
Signed-off-by: Alan Cox <number6@the-village.bc.nu>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 14:15:57 -04:00
Alan Cox
2e41e8e67a libata-core: fix comments on cable type
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 14:15:56 -04:00
Alan Cox
942d09470c libata: Restore Kconfig updated experimental levels and correct
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 14:15:56 -04:00
Alan Cox
7938a72db4 pata_cmd640: Multiple updates
Fix suspend/resume support
Write 0x5B to 0 not 0x5C

The former is important as we must kill the FIFO on a resume

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 14:15:56 -04:00
Alan Cox
97cb81c335 pata_via: Use cable_detect method
We end up shifting a few bits of logic around in this driver but the
basic change is the same.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 14:15:56 -04:00
Alan Cox
2e413f510f pata_sis: Clean up using cable_detect methods
This changeset revolves around the fact that all the SiS controllers have
the same enable bits, but differing cable detection methods. Previously
that meant each type had its own error_handler methods. Instead we can
now implement different ->cable_detect methods and share a single
error_handler which does the filtering by enable bits.

In addition we had some auto const arrays that should be static const. I'm
not sure if gcc already treats them intelligently but adding the static
will make sure.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 14:15:56 -04:00
Alan Cox
307c6054ad pata_marvell: Cable and reset fixes
There are two changes here. Firstly we switch to a cable detect method,
secondly the old code forgot to call ata_std_prereset() but somehow
managed to work anyway. Fix the missing call.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 14:15:56 -04:00
Alan Cox
5816fbbf22 pata_it8213: Cable detect
Another not-quite PIIX, another cable type conversion

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 14:15:56 -04:00
Jeff Garzik
a0fcdc0259 [libata] Update several PATA drivers for new ->cable_detect hook
All patches authored and signed-off-by Alan Cox, sent on Mar 7, 2007.
I merely combined them all into a single patch.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 14:15:56 -04:00
Morrison, Tom
6a3d586d8e Support for Marvell 7042 Chip
Added Support for Marvell 7042 Chip - 7042 has same capabilities & behavior
as 6042.

Signed-off-by: Thomas A. Morrison <tmorrison@empirix.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 14:15:56 -04:00
Alan Cox
b2248dac07 pata_cmd640: CMD640 PCI support
Support for the PCI CMD640 (not VLB)

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 14:15:55 -04:00
Alan Cox
be0d18dff5 libata: cable detection fixes
2.6.21-rc has horrible problems with libata and PATA cable types (and
thus speeds). This occurs because Tejun fixed a pile of other bugs and
we now do cable detect enforcement for drive side detection properly.

Unfortunately we don't do the process around cable detection right. Tejun
identified the problem and pointed to the right Annex in the spec, this patch
implements the rest of the needed changes.

We add a ->cable_detect() method called after the identify
sequence which allows a host to do host side detection at this point
should it wish, or to modify the results of the drive side identify.

This separate ->cable_detect method also cleans up a lot of code because
many drivers have their own error_handler methods which really just set
the cable type.

If there is no ->cable_detect method the cable type is left alone so a
driver setting it earlier (eg because it has the SATA flags set or
because it uses the old error_handler approach) will still do the right
thing (or at least the same thing) as before.

This patch simply adds the cable_detect method and helpers it doesn't use
them but other follow up patches will (ie Adrian please don't submit
patches to unexport them ;))

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 14:15:55 -04:00
Dmitriy Monakhov
5aea408df5 libata: handle ata_pci_device_do_resume() failure while resuming
Since commit:553c4aa630af7bc885e056d0436e4eb7f238579b
ata_pci_device_do_resume() can return error code, all callers was updated
except this one.

Signed-off-by: Monakhov Dmitriy <dmonakhov@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 14:15:55 -04:00
Robert Hancock
8343f88999 libata: warn if speed limited due to 40-wire cable
Warn the user if a drive's transfer rate is limited because of a 40-wire
cable detection.

Signed-off-by: Robert Hancock <hancockr@shaw.ca>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 14:15:55 -04:00
Mark Lord
f0ef88ed41 RESEND: libata: check cdb len per dev instead of per host
Resending, with s/printk/DPRINTK/ as pointed out by Alan.

Fix libata to perform CDB len validation per device
rather than per host.  This way, validation still works
when we have a mix of 12-byte and 16-byte devices on
a common host interface.

Signed-off-by: Mark Lord <mlord@pobox.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 14:15:55 -04:00
Alan
cd0d3bbcdd libata: dev_config does not need ap and adev passing
It used to be impossible to get from ata_device to ata_port but that is
no longer true. Various methods have been cleaned up over time but
dev_config still takes both and most users don't need both anyway. Tidy
this one up

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 14:15:55 -04:00
Jeff Garzik
d88184fb23 [libata] sata_mv: clean up DMA boundary issues, turn on 64-bit DMA
The chips covered by sata_mv have a 32-bit DMA boundary they must not
cross, not a 64K boundary.  We are merely limited to a 64K maximum
segment size.  Therefore, the DMA scatter/gather table fill code can be
greatly simplified, and we need not cut in half the S/G table size as
reported to the SCSI layer.

Also, the driver forget to turn on 64-bit DMA at the PCI layer.  All
other data structures (both hardware and software) have been prepped for
64-bit PCI DMA.  It was simply never turned on.  <fingers crossed> let's
see if it still works...

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 14:15:55 -04:00
Jeff Garzik
43727fbc75 [libata] export sata_print_link_status()
To be used in sata_mv's exception handling code, and overall is a
generally useful function.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 14:15:54 -04:00
Jeff Garzik
351772658a [libata] sata_mv: remove extra braces
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 14:15:54 -04:00
Alan Cox
f3769e9db1 pata_sis: Fix oops on boot
A small number of SiS setups require special handling (not many judging
by how long this dumb bug survived). A couple of Fedora 7 devel testers
hit an Oops on pata_sis loading which is caused by terminal confusion
between chipset as 'the chipset we have found' and chipset as 'array
iterator'

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-19 19:20:52 -04:00
Linus Torvalds
bb4899dbef Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  libata: Limit ATAPI DMA to R/W commands only for TORiSAN DVD drives (take 3)
  libata: Limit max sector to 128 for TORiSAN DVD drives (take 3)
  libata: Clear tf before doing request sense (take 3)
  libata: reorder HSM_ST_FIRST for easier decoding (take 3)
  libata bugfix: preserve LBA bit for HDIO_DRIVE_TASK
  2.6.21 fix lba48 bug in libata fill_result_tf()
2007-04-04 08:44:40 -07:00
Robert Hancock
36e337d024 [PATCH] libata: add NCQ blacklist entries from Silicon Image Windows driver (v2)
This adds some NCQ blacklist entries taken from the Silicon Image 3124/3132
Windows driver .inf files. There are some confirming reports of problems
with these drives under Linux (for example http://lkml.org/lkml/2007/3/4/178)
so let's disable NCQ on these drives.

 [ I'm personally starting to wonder whether we shouldn't disable NCQ by
   default, and perhaps have a white-list. There seems to be a *lot* of
   drives that do this wrong..   - Linus ]

Signed-off-by: Robert Hancock <hancockr@shaw.ca>
Acked-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-04-04 08:40:17 -07:00
Albert Lee
6f23a31d1c libata: Limit ATAPI DMA to R/W commands only for TORiSAN DVD drives (take 3)
patch 4/4:

  Limit ATAPI DMA to R/W commands only for TORiSAN DRD-N216 DVD-ROM drives
  (http://bugzilla.kernel.org/show_bug.cgi?id=6710)

Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-04 02:12:27 -04:00
Albert Lee
18d6e9d518 libata: Limit max sector to 128 for TORiSAN DVD drives (take 3)
patch 3/4:
  The TORiSAN drive locks up when max sector == 256.
  Limit max sector to 128 for the TORiSAN DRD-N216 drives.
  (http://bugzilla.kernel.org/show_bug.cgi?id=6710)

Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-04 02:12:27 -04:00
Albert Lee
56287768e3 libata: Clear tf before doing request sense (take 3)
patch 2/4:
  Clear tf before doing request sense.

This fixes the AOpen 56X/AKH timeout problem.
(http://bugzilla.kernel.org/show_bug.cgi?id=8244)

Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-04 02:12:27 -04:00
Mark Lord
277239f228 libata bugfix: preserve LBA bit for HDIO_DRIVE_TASK
Preserve the LBA bit in the DevSel/Head register for HDIO_DRIVE_TASK.

Signed-off-by:  Mark Lord <mlord@pobox.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-04 02:07:28 -04:00
Mark Lord
4742d54fa4 2.6.21 fix lba48 bug in libata fill_result_tf()
Current 2.6.21 libata does the following:

void ata_tf_read(struct ata_port *ap, struct ata_taskfile *tf)
{
        struct ata_ioports *ioaddr = &ap->ioaddr;

        tf->command = ata_check_status(ap);
	...
        if (tf->flags & ATA_TFLAG_LBA48) {
                iowrite8(tf->ctl | ATA_HOB, ioaddr->ctl_addr);
                tf->hob_feature = ioread8(ioaddr->error_addr);
                ...
        }
}
...
static void fill_result_tf(struct ata_queued_cmd *qc)
{
        struct ata_port *ap = qc->ap;

        ap->ops->tf_read(ap, &qc->result_tf);
        qc->result_tf.flags = qc->tf.flags;
}

Based on this, those last two statements fill_result_tf()
appear to me to be in the wrong order, in that the tf->flags
are uninitialized at the point where tf_read() is invoked.
So for lba48 commands, tf_read() won't be reading back the
full lba48 register contents..

Correct?

This patch corrects fill_result_tf() so that the flags
get copied to result_tf before they are used by tf_read().

Signed-off-by:  Mark Lord <mlord@pobox.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-04 02:07:28 -04:00
Jens Axboe
964429252a [PATCH] Maxtor 6B250S0/BANC1B70 hangs with NCQ
I've seen this several times on this drive, completely reproducible.

Once it has hung, power needs to be cut from the drive to recover it, a
simple reboot is not enough.  So I'd suggest disabling NCQ on this
drive.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Acked-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-30 11:13:06 -07:00
Paul Rolland
7acfaf3037 ata: NCQ is broken on Maxtor 6L250S0
With this applied, my machine has stopped all those painful messages.
dmesg now says :

root@riri:/Kernels# dmesg | grep LBA
ata1.00: 490234752 sectors, multi 0: LBA48 NCQ (not used)
ata2.00: 640 sectors, multi 1: LBA
ata3.00: 490234752 sectors, multi 0: LBA48 NCQ (not used)

Signed-off-by: Paul Rolland <rol@as2917.net>
Acked-by: Alan Cox <alan@redhat.com>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Tejun Heo <htejun@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-28 02:05:13 -04:00
Alan Cox
5e5188108b pata_pdc202xx_old: LBA48 bug
In LBA48 mode we have to help the controller to get anything to work. The
chip provides a register giving word counts meant for ATAPI use which we
can use. However we need to load the count in words not bytes..

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-28 02:05:13 -04:00
Tejun Heo
8c3c52a8f0 libata: IDENTIFY backwards for drive side cable detection
For drive side cable detection to work correctly, drives need to be
identified backwards such that the slave device releases PDIAG- before
the mater drive tries to detect cable type.  ata_bus_probe() was fixed
by commit f31f0cc2f0 but the new EH path
wasn't fixed.  This patch makes new EH path do IDENTIFY backwards.

ata_dev_configure() for new devices are still performed master first.
This is to keep the detection messages in forward order.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-28 02:04:27 -04:00
Conke Hu
55a61604cd ahci.c: walkaround for SB600 SATA internal error issue
There is a HW issue in ATI SB600 SATA that PxSERR.E should not be
set on some conditions, for example, when there is no media in SATA
CD/DVD drive or media is not ready, AHCI controller fails to execute
ATAPI commands and reports PORT_IRQ_TF_ERR, but ATI SB600 SATA
controller sets PxSERR.E at the
same time, which is not necessary.
    This patch is just to ignore the INTERNAL ERROR in such case.
Without this patch, ahci error handler will report many errors as
below:
    ----------- cut from dmesg -----------
ata9: soft resetting port
ata9: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
ata9.00: configured for UDMA/33
ata9: EH complete
ata9.00: exception Emask 0x40 SAct 0x0 SErr 0x800 action 0x2
ata9.00: (irq_stat 0x40000001)
ata9.00: cmd a0/00:00:00:00:20/00:00:00:00:00/a0 tag 0 cdb 0x0 data 0
        res 51/24:03:00:00:20/00:00:00:00:00/a0 Emask 0x40 (internal error)
ata9: soft resetting port
ata9: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
ata9.00: configured for UDMA/33
ata9: EH complete
ata9.00: exception Emask 0x40 SAct 0x0 SErr 0x800 action 0x2
ata9.00: (irq_stat 0x40000001)
ata9.00: cmd a0/01:00:00:00:00/00:00:00:00:00/a0 tag 0 cdb 0x43 data 12 in
        res 51/24:03:00:00:00/00:00:00:00:00/a0 Emask 0x40 (internal error)
    -------- end cut ---------

Signed-off-by: Conke Hu <conke.hu@amd.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-28 02:04:27 -04:00
Jeff Garzik
d7d0dad62a [libata] Disable ACPI by default; fix namespace problems
Not yet ready to turn on ATA ACPI by default, for either PATA or SATA.

Also, rename the global-scope module parameter variable 'noacpi' to
something more libata-specific, reducing the potential for namespace
collision.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-28 01:57:37 -04:00
Alessandro Zummo
282c6b9c7a pata_ixp4xx_cf: fix interrupt
As per compact flash specifications, the default
 irq mode upon cf insertion is pulse mode. this patch fixes
 the driver to cope with that.

Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-19 11:58:01 -04:00
Tejun Heo
2ab302b357 pata_ixp4xx_cf: fix oops on detach
pata_ixp4xx_cf dodged dont-clear-drvdata-in-LLD bombing run as it used
platform_set_drvdata() instead of dev_set_drvdata().  This causes OOPS
on devres host release.  Kill it.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-19 11:56:59 -04:00
Randy Dunlap
cc261267df libata: kernel-doc fix
Warning(linux-2621-rc3g7/drivers/ata/libata-core.c:842): No description found for parameter 'unknown'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-19 11:56:59 -04:00
Tejun Heo
e1251d0145 sata_inic162x: kill double region requests
Regions are requested twice during initialization causing the second
one to fail.  This is regression introduced during iomap conversion.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-19 11:56:59 -04:00
Akira Iguchi
aeb9362a48 drivers/ata/Kconfig: PATA_SCC depends on wrong platform
PATA_SCC depends on PPC_CELLEB. (not PPC_IBM_CELL_BLADE)

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Signed-off-by: Akira Iguchi <akira2.iguchi@toshiba.co.jp>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-19 11:56:59 -04:00
Jamie Clark
722d67b620 sata_sil24: Add Adaptec 1220SA PCI ID
Add Adaptec 1220SA (SIL3132) to devices claimed by sata_sil24
Patch generated against 2.6.20.2

Signed-off-by: Jamie Clark <jclark@metaparadigm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-19 11:56:59 -04:00
Tejun Heo
4aa9ab67fb libata: don't whine if ->prereset() returns -ENOENT
->prereset() returns -ENOENT to tell libata that the port is empty and
reset sequencing should be stopped.  This is not an error condition.
Update ata_eh_reset() such that it sets device classes to ATA_DEV_NONE
and return success in on -ENOENT.  This makes spurious error message
go away.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-19 11:55:43 -04:00
Al Viro
edceec3d67 [PATCH] trivial ATA iomem annotations
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14 15:27:50 -07:00
Al Viro
89952d133d [PATCH] misc NULL noise
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-14 15:27:49 -07:00
Len Brown
b2526300ab Pull bugzilla-7907 into release branch 2007-03-09 23:18:53 -05:00
Kristen Accardi
df33c77e39 libata-acpi: allow _GTF on SATA, but disable on PATA for now
The ACPI specification states, and BIOS implementations depend on,
_STM being called before _GTF.

SATA does this, but PATA does not.  So for now, simply
prevent execution of _GTF on PATA devices.  Longer term we
should implement ACPI support for PATA devices in libata.

Signed-off-by: Kristen Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-03-09 18:15:33 -05:00
Tejun Heo
1aa506e437 libata: fix ata_host_release() free order
host->ops->host_stop() might access ports.  Free ports after
host_stop.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-09 08:41:16 -05:00
Robert Hancock
8ba5e4cbe4 sata_nv: revert use of notifiers for now
Commit 721449bf0d added support for using the
ADMA notifier bits to determine which commands to check for completion.
However there have been reports that this causes command timeouts in certain
cases. This is still being investigated. In addition, apparently the notifiers
won't work if ADMA is disabled on the other port as a result of an ATAPI device
being connected, and we don't handle this case properly.

For now, just restore the previous behavior of checking all active commands
to see if they are complete, without relying on the notifiers.

Signed-off-by: Robert Hancock <hancockr@shaw.ca>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-09 08:41:16 -05:00
Petr Vandrovec
14d66ab7e2 Fix simplex adapters with libata
Recently I got my hands on nVidia's MCP61 PM-AM board, and
it contains IDE chip configured by BIOS with only primary
channel enabled.  This confuses code which probes for
device DMA capabilities - it gets 0x60 (happy duplex
device) from primary channel BMDMA, but 0xFF (nobody here)
from secondary channel BMDMA.  Due to this code then believes
that chip is simplex.  I do not address this problem in
my patch, as I'm not sure how to handle this.  Probably
ata_pci_init_one should have bitmap of enabled/possible
interfaces instead of their count, but it looks like
quite intrusive change, and maybe we do not care - for device
with only one channel simplex and regular DMA engines are
same.

But making device simplex pointed out that support for
DMA on simplex devices is currently broken - ata_dev_xfermask
tests whether device is simplex and if it is whether DMA
engine was assigned to this port.  If not then it strips
out DMA bits from device.  Problem is that code which assigns
DMA engine to port in ata_set_mode first detect device
mode and assigns DMA engine to channel only if some DMA
capable device was found.

And as xfermask stripped out DMA bits, host->simplex_claimed
is always NULL with current implementation.

By allowing DMA either if simplex_claimed is NULL or if it
points to current port DMA can be finally used - it gets
assigned to first port which contains any DMA capable
device.

Before:
pata_amd 0000:00:06.0: version 0.2.8
PCI: Setting latency timer of device 0000:00:06.0 to 64
ata5: PATA max UDMA/133 cmd 0x000101f0 ctl 0x000103f6 bmdma 0x0001f000 irq 14
ata6: PATA max UDMA/133 cmd 0x00010170 ctl 0x00010376 bmdma 0x0001f008 irq 15
scsi4 : pata_amd
ata5.00: ATAPI, max UDMA/66
ata5.00: simplex DMA is claimed by other device, disabling DMA
ata5.00: configured for PIO4
scsi5 : pata_amd
ata6: port disabled. ignoring.
ata6: reset failed, giving up
scsi 4:0:0:0: CD-ROM            ATAPI    DVD W  DH16W1P   LG12 PQ: 0 ANSI: 5

After:
pata_amd 0000:00:06.0: version 0.2.8
PCI: Setting latency timer of device 0000:00:06.0 to 64
ata5: PATA max UDMA/133 cmd 0x000101f0 ctl 0x000103f6 bmdma 0x0001f000 irq 14
ata6: PATA max UDMA/133 cmd 0x00010170 ctl 0x00010376 bmdma 0x0001f008 irq 15
scsi4 : pata_amd
ata5.00: ATAPI, max UDMA/66
ata5.00: configured for UDMA/33
scsi5 : pata_amd
ata6: port disabled. ignoring.
ata6: reset failed, giving up
scsi 4:0:0:0: CD-ROM            ATAPI    DVD W  DH16W1P   LG12 PQ: 0 ANSI: 5

Signed-off-by: Petr Vandrovec <petr@vandrovec.name>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-09 08:41:15 -05:00
Alan Cox
9a2eb70925 ata_piix: Remove ugly layering violation
A while ago I modified the libata code so that drivers can return -ENOENT
for unknown ports not fiddle with the EH flags and print stuff directly.
Somewhere along the line ata_piix didn't get fully converted.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-09 08:41:15 -05:00
Alan Cox
ca4266359d [PATCH] libata-acpi: Try and stop all the non PCI devices crashing
For 2.6.20 it mostly used to just not work, for 2.6.21-rc it crashes, this
seems to be down to luck (bad or good). The libata-acpi code needs to
avoid doing PCI work on non-PCI devices. This is one hack although it's
not pretty and perhaps there is a "right" way to check if a struct device
* is PCI ?

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-08 14:19:13 -08:00
Bartlomiej Zolnierkiewicz
63ed71019c pata_pdc202xx_old: fix data corruption and other problems
Fix wrong "port" calculations in pdc202xx_{configure_piomode,set_dmamode}()
They were broken for all configurations except one (master device on primary
channel, no other devices) and as a result device settings + PIO/DMA timings
were being programmed into the wrong PCI registers.  This could result in
a large variety of problems including data corruption, hangs etc. (depending
on devices used and your luck :-).

  ap->port_no   ap->devno   used PCI registers   correct PCI registers
            0           0            0x60-0x62               0x60-0x62
            0           1            0x62-0x64               0x64-0x66
            1           0            0x64-0x66               0x68-0x6a
            1           1            0x66-0x68               0x6c-0x6e

Also forward port recent fixes from drivers/ide pdc202xx_old driver:

* fix XFER_MW_DMA0 timings (they were overclocked, use the official ones)

* fix bitmasks for clearing bits of register B:

  - when programming DMA mode bit 0x10 of register B was cleared which
    resulted in overclocked PIO timing setting (iff PIO0 was used)

  - when programming PIO mode bits 0x18 weren't cleared so suboptimal
    timings were used for PIO1-4 if PIO0 was previously set (bit 0x10)
    and for PIO0/3/4 if PIO1/2 was previously set (bit 0x08)

and finally bump driver version.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-06 04:04:30 -05:00
Mikael Pettersson
8b966dddc2 pata_legacy: fix io/irq mismatch
pata_legacy fails to detect the disk on my old ISA/VLB 486:
it starts to probe io=0x1f0 ctr=0x3f6 irq=15, complains
loudly about IDENTIFYs timing out, and finally fails.
(Sorry I couldn't capture the kernel's boot messages.)

It turns out that the driver's mapping from io to irq in
legacy_irq[] is wrong: index 0 for io=0x1f0 has irq=15 but
should have irq=14, and index 1 for io=0x170 has irq=14 but
should have irq=15. This is confirmed by a comparison with
include/asm-i386/ide.h:ide_default_irq().

This patch swaps the first two elements in legacy_irq[],
which makes pata_legacy work on my 486.

Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-06 04:04:30 -05:00
Jason Gaston
8af12cdb7c ahci: RAID mode SATA patch for Intel ICH9M
This patch adds the Intel ICH9M RAID controller DID for SATA support.

Signed-off-by:  Jason Gaston <jason.d.gaston@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-06 04:04:30 -05:00
Jeff Garzik
527e1e1879 [libata] pata_jmicron: build fix
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-03 10:36:19 -05:00
Tejun Heo
6ffa01d88c libata: add CONFIG_PM to libata core layer
Conditionalize all PM related stuff in libata core layer using
CONFIG_PM.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-02 18:30:35 -05:00
Tejun Heo
438ac6d5e3 libata: add missing CONFIG_PM in LLDs
Add missing #ifdef CONFIG_PM conditionals around all PM related parts
in libata LLDs.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-02 18:30:35 -05:00
Tejun Heo
b23ff24436 libata: add missing PM callbacks
Some LLDs were missing scsi device PM callbacks while having host/port
suspend support.  Add missing ones.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-02 18:27:34 -05:00
Alan Cox
cc7c15ec16 pata_qdi: Fix initialisation
The QDI init code contains some bugs which mean it only works if you have
a test setup that causes both a successful and failed probe. Fix this

Found by Philip Guo

(Who found it working on code analysis tools not running VLB IDE
controllers)

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-02 18:18:38 -05:00
Jeff Garzik
fb9f8905a8 [libata] pata_cmd64x: fix driver description in comments
Trivial comment fix, taken out of a larger Alan Cox patch.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-02 18:17:22 -05:00
Jeff Garzik
bf7551c441 [libata] pata_{legacy,sc1200,sl82c105}: add missing hooks
Alan Cox noticed several hooks in pata_* drivers were missing, when
he authored his ->cable_detect hook patches.  This patch extracts
just those fixes from Alan's patches, adding the necessary hooks
(usually ->freeze, ->thaw, and ->post_internal_cmd) to the drivers.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-02 18:09:05 -05:00
Jeff Garzik
f31f0cc2f0 [libata] change master/slave IDENTIFY order
2.6.21-rc has horrible problems with libata and PATA cable types (and
thus speeds). This occurs because Tejun fixed a pile of other bugs and
we now do cable detect enforcement for drive side detection properly.

Unfortunately we don't do the process around cable detection right. Tejun
identified the problem and pointed to the right Annex in the spec, this patch
implements the needed changes.

The basic requirement is that we have to identify the slave before the
master.

The patch switches the identify order so that we can do the drive side
detection correctly.

[NOTE: patch and description extracted from a larger work written
and signed-off-by Alan Cox]

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-02 17:47:28 -05:00
Alan
032af1ce16 libata-core: Fix simplex handling
The initial simplex handling code is fooled if you suspend and resume.
This also causes problems with some single channel controllers which
claim to be simplex.

The fix is fairly simple, instead of keeping a flag to remember if we
gave away the simplex channel we remember the actual owner. As the owner
is always part of the host_set we don't even need a refcount.

Knowing the owner also means we can reassign simplex DMA channels in
future hotplug code etc if we need to

Signed-off-by: Alan Cox <alan@redhat.com>
(and a signed-off for the patch I sent before while I remember)
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-02 17:42:48 -05:00
Tejun Heo
afb2d552bc ahci: improve spurious SDB FIS handling
Spurious SDB FIS during NCQ might not contain spurious completions.
It could be spurious TF update or invalid async notification.  Treat
as HSM violation iff a spurious SDB FIS contains spurious completions;
otherwise, just whine once about it.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-01 20:19:45 -05:00
Tejun Heo
e34bb370de ahci/pata_jmicron: match class not function number
Make jmiron_ata quirk update pdev->class after programming the device
and update ahci and pata_jmicron such that they match class code
instead of checking function number manually.  For ahci, it matches
for vendor and class.  For pata_jmicron, it matches vendor, device and
class as IDE class isn't as well defined as AHCI class.

This makes jmicron device matching more conventional and script
friendly.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-01 20:19:45 -05:00
Tejun Heo
960627b7ad pata_jmicron: drop unnecessary device programming in [re]init
Channel redirect and AHCI mode enable programmings are done via PCI
quirk for both probe and resume paths.  Drop duplicate and possibly
unsafe device programming from pata_jmicron().

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-01 20:19:45 -05:00
Tejun Heo
09125ea617 libata: blacklist FUJITSU MHT2060BH for NCQ
Blacklist FUJITSU MHT2060BH for NCQ.  On this drive, NCQ works iff
queue depth is equal to or less than 4.  Just turn it off.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Mike Accetta <maccetta@laurelnetworks.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-01 20:16:29 -05:00
Tejun Heo
4fc00cb4d5 sata_sil24: kill unused local variable idx in sil24_fill_sg()
Kill unused local variable idx in sil24_fill_sg().

Spotted by Jeff Garzik.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-01 20:16:29 -05:00
Tejun Heo
1aa56cca5b libata: clear drvdata in ata_host_release(), take#2
Clearing drvdata in ->remove_one causes NULL pointer deference.  Clear
drvdata only in ata_host_release() after all resources are freed.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-01 20:16:28 -05:00
Jeff Garzik
cb48cab7f3 [libata] bump versions
Bump versions based on changes submitted during 2.6.21 merge window.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-26 06:04:24 -05:00
Jeff Garzik
a84471fe26 [libata] Trim trailing whitespace.
No code changes.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-26 05:51:33 -05:00
Jeff Garzik
fb621e2fde [libata] sata_mv: Fix 50xx irq mask
IRQ mask bits assumed a 60xx or newer generation chip, which is very
wrong for the 50xx series.  Luckily both generations shared the per-port
interrupt mask bits, leaving only the "misc chip features" bits to be
completely mismatched.

Fix 50xx by ensuring we only program bits that exist.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-26 05:42:39 -05:00
Jeff Garzik
e728eabea1 [libata] sata_mv: don't touch reserved bits in EDMA config register
The code in mv_edma_cfg() reflected its 60xx origins, by doing things
[slightly] incorrectly on the older 50xx and newer 6042/7042 chips.

Clean up the EDMA configuration setup such that, each chip family
carefully initializes its own EDMA setup.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-26 05:42:31 -05:00
Alan
616ece2e7e libata: Use new id_to_dma_mode function to tidy reporting in more drivers (minimally tested)
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-25 15:41:40 -05:00
Alan
cc70991d64 pata_pcmcia: Fix oops in 2.6.21-rc1
Manuel Lass reports:
> This bug is also present in 2.6.21-rc1, and this patch
> indeed fixes it.

The change to the devres layer re-orders the execution of cleanup
functions and in turn causes the pcmcia layer to oops as it zaps a
pointer now needed later on. We simply leave the pointer alone.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-25 15:41:40 -05:00
Alan
10305f0f8e Add id_to_dma_mode function for printing DMA modes
Also export dev_disable as this is needed by drivers doing slave decode
filtering, which will follow shortly

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-25 15:41:40 -05:00
Mikael Pettersson
098cdff3d4 sata_promise: simplify port setup
Each place in pdc_ata_init_one() that initialises a SATA
port first calls pdc_ata_setup_port(), and then manually
assigns the port's ->scr_addr. Simplify the code by extending
pdc_ata_setup_port() to also handle scr_addr initialisation;
for PATA ports we pass NULL as scr_addr.

The initialisation of the PATA-only 20619 redundantly set
up scr_addr for the ports. Remove this.

Tested on 20619, 20575, and 20775 chips.

Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-25 15:41:40 -05:00
Mikael Pettersson
540477b4d9 sata_promise: fix 20619 new EH merge error
When I merged my 20619 new EH conversion with #libata-upstream
I had to manually resolve a conflict, and inadvertently lost
pdc_pata_ops' ->post_internal_cmd binding. Corrected by this patch.

Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-25 15:41:40 -05:00
Jeff Garzik
fc16c25ff4 [libata] ACPI: remove needless ->qc_issue hook existence test
All drivers must implement this hook, otherwise ATA commands would go
nowhere (and a lot of other oopsen would appear as well).

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-24 21:05:01 -05:00
Dan Williams
ea34e45a46 sata_vsc: refactor vsc_sata_interrupt and hook up error handling
Separate sata_vsc interrupt handling into a normal (per-port) path and an
error path with the addition of vsc_port_intr and vsc_error_intr
respectively.  The error path handles interrupt based
hotplug events which requires the definition of vsc_freeze and vsc_thaw.

Note: vsc_port_intr has a workaround for unexpected interrupts that occur
during polled commands.  This fixes a regression between 2.6.19 and 2.6.20.

Changes in take2:
* removed definition of invalid fis bit
* let standard ata-error-handling handle the serror register
* clear all unhandled interrupts
* revert changes to vsc_intr_mask_update (vsc_thaw enables all interrupts)
* use unlikely() for the pci-abort and not-our-interrupt cases in vsc_sata_interrupt

Changes in take3:
* Unify the "add" + "hook-up" patches into this single patch

[htejun@gmail.com: clean up comments and suggestions]
Cc: Jeremy Higdon <jeremy@sgi.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-24 20:54:26 -05:00
Tejun Heo
e2f8fb7214 sata_sil: ignore and clear spurious IRQs while executing commands by polling
sata_sil used to trigger HSM error if IRQ occurs during polling
command.  This didn't matter because polling wasn't used in sata_sil.
However, as of 2.6.20, all IDENTIFYs are performed by polling and
device detection sometimes fails due to spurious IRQ.  This patch
makes sata_sil ignore and clear spurious IRQ while executing commands
by polling.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-24 20:52:12 -05:00
Tejun Heo
6a59dcf867 sata_mv: fix pci_enable_msi() error handling
intx should be turned on when pci_enable_msi() fails not when it
succeeds.  Fix it.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-24 20:52:12 -05:00
Tejun Heo
f1da66e759 pata_amd: fix an obvious bug in cable detection
80c test mask is at bits 18 and 19 of EIDE Controller Configuration
not 22 and 23.  Fix it.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-24 20:52:12 -05:00
Jeff Garzik
ec09150303 [libata] ata_piix: remove duplicate PCI IDs
Duplicate ids noticed by Kay Sievers <kay.sievers@suse.de>

Although 100% different, this is based on a patch by Greg Kroah-Hartman
<gregkh@suse.de>

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-23 05:49:14 -05:00
Robert Hancock
2a54cf76d1 sata_nv: complain on spurious completion notifiers
Recently Tejun wrote a patch to ahci.c to make it raise a HSM violation
if the drive attempted to complete a tag that wasn't outstanding. We could
run into the same problem with sata_nv ADMA. This adds code to raise a HSM
violation error if the controller gives us a notifier tag that isn't
outstanding, since the drive may be issuing spurious completions.

Signed-off-by: Robert Hancock <hancockr@shaw.ca>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-23 05:37:11 -05:00
Robert Hancock
f5ecac2d8e sata_nv: kill old private BMDMA helper functions
sata_nv implemented its own copies of the BMDMA helper functions for ADMA,
since the ADMA BMDMA status registers are PIO while the other registers
are MMIO, and this was the only way to handle this previously. Now that
we have iomap support, the standard routines should just work, so use them.
The only thing we need to override as far as ADMA and BMDMA is the
post_internal_cmd callback, where we should only call ata_post_internal_cmd
if we are in port-register mode.

Signed-off-by: Robert Hancock <hancockr@shaw.ca>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-23 05:37:11 -05:00