Commit Graph

2501 Commits

Author SHA1 Message Date
Linus Torvalds
a2d2eda7bf SCSI fixes on 20121122
This is a set of four bug fixes.  The isci one is an obvious thinko (using
 request buffer instead of response buffer) which causes a command to fail.
 The three others are DIF/DIX updates which are required because they're part
 of a series of ten patches, the other seven of which went into the block layer
 during the merge window meaning our current DIF/DIX implementation is broken
 without these three.
 
 Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "This is a set of four bug fixes.

  The isci one is an obvious thinko (using request buffer instead of
  response buffer) which causes a command to fail.

  The three others are DIF/DIX updates which are required because
  they're part of a series of ten patches, the other seven of which went
  into the block layer during the merge window meaning our current
  DIF/DIX implementation is broken without these three.

  Signed-off-by: James Bottomley <JBottomley@Parallels.com>"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  [SCSI] sd: Implement support for WRITE SAME
  [SCSI] sd: Permit merged discard requests
  [SCSI] Add a report opcode helper
  [SCSI] isci: copy fis 0x34 response into proper buffer
2012-11-22 09:14:54 -10:00
Yuanhan Liu
29448ec129 [libata] PM callbacks should be conditionally compiled on CONFIG_PM_SLEEP
This will fix warnings like following when CONFIG_PM_SLEEP is not set:

        warning: 'xxx_suspend' defined but not used [-Wunused-function]
        warning: 'xxx_resume' defined but not used [-Wunused-function]

Because
	SET_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn)

Only references the callbacks on CONFIG_PM_SLEEP (instead of CONFIG_PM).

Cc: Viresh Kumar <viresh.linux@gmail.com>
Cc: linux-ide@vger.kernel.org
Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-11-16 00:45:37 -05:00
David Milburn
b03e66a6be sata_svw: check DMA start bit before reset
If kdump is triggered with pending IO, controller may not respond causing
kdump to fail.

http://marc.info/?l=linux-ide&m=133032255424658&w=2

During error recovery ata_do_dev_read_id never completes due hang
in mmio_insw.

ata_do_dev_read_id
 ata_sff_data_xfer
  ioread16_rep
   mmio_insw

if DMA start bit is cleared before reset, PIO command is successful
and kdump succeeds.

Signed-off-by: David Milburn <dmilburn@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-11-15 23:54:41 -05:00
Borislav Petkov
cd705d5ad4 libata debugging: Warn when unable to find timing descriptor based on xfer_mode
ata_timing_find_mode could return NULL which is not checked by all
low-level ATA drivers using it and cause a NULL ptr deref. Warn at least
so that possible issues can get fixed easily.

Signed-off-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-11-15 23:51:11 -05:00
Arnd Bergmann
c37472d3f4 sata_highbank: mark ahci_highbank_probe as __devinit
The ahci_highbank_probe function is incorrectly marked as __init,
which means it can get discarded at boot time, which might be
a problem if for some reason the device only becomes operational
after loading another module.

Using __devinit instead avoids seeing this warning for every build:

WARNING: vmlinux.o(.data+0xf7b0): Section mismatch in reference from the
variable ahci_highbank_driver to the function .init.text:ahci_highbank_probe()
The variable ahci_highbank_driver references
the function __init ahci_highbank_probe()
If the reference is valid then annotate the
variable with __init* or __refdata (see linux/init.h) or name the variable:
*_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Mark Langsdorf <mark.langsdorf@calxeda.com>
Cc: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-11-15 23:44:27 -05:00
Vipul Kumar Samar
9addf6afee pata_arasan: Initialize cf clock to 166MHz
PATA arasan driver expects the clock to be set to 166 MHz for proper
functioning.  This patch sets clk to 166 MHz in probe.

Signed-off-by: Vipul Kumar Samar <vipulkumar.samar@st.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-11-15 23:40:20 -05:00
Aaron Lu
60817a680b libata-acpi: Fix NULL ptr derference in ata_acpi_dev_handle
commit 6b66d95895 didn't handle SATA PMP
case in ata_acpi_bind_device and will cause a NULL ptr dereference when
user attached a SATA drive to the PMP port. Fix this by checking PMP
support.

This bug is reported by Dan van der Ster in the following bugzilla page:
https://bugzilla.kernel.org/show_bug.cgi?id=48211

Reported-by: Dan van der Ster <dan@vanderster.com>
Tested-by: Dan van der Ster <dan@vanderster.com>
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Tested-by: Simon <tangouniform@sbcglobal.net>
2012-11-15 23:20:55 -05:00
Martin K. Petersen
5db44863b6 [SCSI] sd: Implement support for WRITE SAME
Implement support for WRITE SAME(10) and WRITE SAME(16) in the SCSI disk
driver.

 - We set the default maximum to 0xFFFF because there are several
   devices out there that only support two-byte block counts even with
   WRITE SAME(16). We only enable transfers bigger than 0xFFFF if the
   device explicitly reports MAXIMUM WRITE SAME LENGTH in the BLOCK
   LIMITS VPD.

 - max_write_same_blocks can be overriden per-device basis in sysfs.

 - The UNMAP discovery heuristics remain unchanged but the discard
   limits are tweaked to match the "real" WRITE SAME commands.

 - In the error handling logic we now distinguish between WRITE SAME
   with and without UNMAP set.

The discovery process heuristics are:

 - If the device reports a SCSI level of SPC-3 or greater we'll issue
   READ SUPPORTED OPERATION CODES to find out whether WRITE SAME(16) is
   supported. If that's the case we will use it.

 - If the device supports the block limits VPD and reports a MAXIMUM
   WRITE SAME LENGTH bigger than 0xFFFF we will use WRITE SAME(16).

 - Otherwise we will use WRITE SAME(10) unless the target LBA is beyond
   0xFFFFFFFF or the block count exceeds 0xFFFF.

 - no_write_same is set for ATA, FireWire and USB.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Mike Snitzer <snitzer@redhat.com>
Reviewed-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-11-13 22:45:42 -08:00
Martin K. Petersen
3c6bdaeab4 [SCSI] Add a report opcode helper
The REPORT SUPPORTED OPERATION CODES command can be used to query
whether a given opcode is supported by a device. Add a helper function
that allows us to look up commands.

We only issue RSOC if the device reports compliance with SPC-3 or
later. But to err on the side of caution we disable the command for ATA,
FireWire and USB.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-11-13 21:11:31 -08:00
Linus Torvalds
3151367f87 SCSI for-linus on 20121002
This is a large set of updates, mostly for drivers (qla2xxx [including support
 for new 83xx based card], qla4xxx, mpt2sas, bfa, zfcp, hpsa, be2iscsi, isci,
 lpfc, ipr, ibmvfc, ibmvscsi, megaraid_sas).  There's also a rework for tape
 adding virtually unlimited numbers of tape drives plus a set of dif fixes for
 sd and a fix for a live lock on hot remove of SCSI devices.
 
 This round includes a signed tag pull of isci-for-3.6
 
 Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Merge tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull first round of SCSI updates from James Bottomley:
 "This is a large set of updates, mostly for drivers (qla2xxx [including
  support for new 83xx based card], qla4xxx, mpt2sas, bfa, zfcp, hpsa,
  be2iscsi, isci, lpfc, ipr, ibmvfc, ibmvscsi, megaraid_sas).

  There's also a rework for tape adding virtually unlimited numbers of
  tape drives plus a set of dif fixes for sd and a fix for a live lock
  on hot remove of SCSI devices.

  This round includes a signed tag pull of isci-for-3.6

  Signed-off-by: James Bottomley <JBottomley@Parallels.com>"

Fix up trivial conflict in drivers/scsi/qla2xxx/qla_nx.c due to new PCI
helper function use in a function that was removed by this pull.

* tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (198 commits)
  [SCSI] st: remove st_mutex
  [SCSI] sd: Ensure we correctly disable devices with unknown protection type
  [SCSI] hpsa: gen8plus Smart Array IDs
  [SCSI] qla4xxx: Update driver version to 5.03.00-k1
  [SCSI] qla4xxx: Disable generating pause frames for ISP83XX
  [SCSI] qla4xxx: Fix double clearing of risc_intr for ISP83XX
  [SCSI] qla4xxx: IDC implementation for Loopback
  [SCSI] qla4xxx: update copyrights in LICENSE.qla4xxx
  [SCSI] qla4xxx: Fix panic while rmmod
  [SCSI] qla4xxx: Fail probe_adapter if IRQ allocation fails
  [SCSI] qla4xxx: Prevent MSI/MSI-X falling back to INTx for ISP82XX
  [SCSI] qla4xxx: Update idc reg in case of PCI AER
  [SCSI] qla4xxx: Fix double IDC locking in qla4_8xxx_error_recovery
  [SCSI] qla4xxx: Clear interrupt while unloading driver for ISP83XX
  [SCSI] qla4xxx: Print correct IDC version
  [SCSI] qla4xxx: Added new mbox cmd to pass driver version to FW
  [SCSI] scsi_dh_alua: Enable STPG for unavailable ports
  [SCSI] scsi_remove_target: fix softlockup regression on hot remove
  [SCSI] ibmvscsi: Fix host config length field overflow
  [SCSI] ibmvscsi: Remove backend abstraction
  ...
2012-10-02 19:01:32 -07:00
Linus Torvalds
51562cba98 Minor libata updates, nothing notable.
1) Apply -- and then revert -- the FUA feature.  Caused
    disk corruption in linux-next, proving it cannot be turned on by
    default.
 
    Net effect to upstream tree:  zero
 
 2) New AHCI platform driver sata_highbank
 
 3) Improve SCSI MODE SENSE handling; support MODE SELECT
 
 4) AHCI: support aggressive device sleep (power mgmt)
 
 5) sata_fsl: minor fix
 
 6) pata_arasan: clk support
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Merge tag 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev

Pull libata changes from Jeff Garzik:
 "Minor libata updates, nothing notable.

   1) Apply -- and then revert -- the FUA feature.  Caused disk
      corruption in linux-next, proving it cannot be turned on by
      default.

      Net effect to upstream tree:  zero

   2) New AHCI platform driver sata_highbank

   3) Improve SCSI MODE SENSE handling; support MODE SELECT

   4) AHCI: support aggressive device sleep (power mgmt)

   5) sata_fsl: minor fix

   6) pata_arasan: clk support"

* tag 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  sata_mv: Fix warnings when no PCI
  [libata] Makefile: Fix build error in sata_highbank
  [libata] export ata_dev_set_feature()
  libata-core: use ATA_LBA in ata_build_rw_tf()
  ata/ahci_platform: Add clock framework support
  pata_arasan: add Device Tree probing capability
  pata_arasan: Add clk_{un}prepare() support
  ata: add platform driver for Calxeda AHCI controller
  sata_fsl: add workaround for data length mismatch on freescale V2 controller
  ahci: implement aggressive SATA device sleep support
  ata: define enum constants for IDENTIFY DEVICE
  Revert "libata: enable SATA disk fua detection on default"
  [libata] scsi: implement MODE SELECT command
  [libata] scsi: support MODE SENSE request for changeable and default parameters
  [libata] scsi: Remove unlikely() from FUA check
  libata: enable SATA disk fua detection on default
2012-10-02 18:23:35 -07:00
James Bottomley
fe709ed827 Merge SCSI misc branch into isci-for-3.6 tag 2012-10-02 08:55:12 +01:00
Andrew Lunn
13b74085d9 sata_mv: Fix warnings when no PCI
Dove can be configured without PCI. We then get a number of warnings:

warning: 'msi' defined but not used
warning: 'mv5_sht' defined but not used
warning: 'mv_dump_pci_cfg' defined but not used.

Move around variables and add #ifdef as necassary to fix the warnings.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-10-01 22:53:23 -04:00
Mark Langsdorf
40dad0af2d [libata] Makefile: Fix build error in sata_highbank
Allow sata_highbank to build even if no other users of libahci.o are built.

Signed-off-by: Mark Langsdorf <mark.langsdorf@calxeda.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-10-01 22:50:37 -04:00
Olof Johansson
e3a66aa33a Merge branch 'multiplatform/platform-data' into next/multiplatform
* multiplatform/platform-data:
  ARM: spear: move platform_data definitions
  ARM: samsung: move platform_data definitions
  ARM: orion: move platform_data definitions
  ARM: nomadik: move platform_data definitions
  ARM: w90x900: move platform_data definitions
  ARM: vt8500: move platform_data definitions
  ARM: tegra: move sdhci platform_data definition
  ARM: sa1100: move platform_data definitions
  ARM: pxa: move platform_data definitions
  ARM: netx: move platform_data definitions
  ARM: msm: move platform_data definitions
  ARM: imx: move platform_data definitions
  ARM: ep93xx: move platform_data definitions
  ARM: davinci: move platform_data definitions
  ARM: at91: move platform_data definitions

Conflicts due to removed files:
	arch/arm/mach-tegra/board-harmony.c
	arch/arm/mach-tegra/board-trimslice.c

Conflicts due to code removal:
	arch/arm/mach-tegra/board-paz00.c

Context conflicts in:
	drivers/mmc/host/sdhci-tegra.c
	drivers/net/irda/pxaficp_ir.c

Signed-off-by: Olof Johansson <olof@lixom.net>
2012-09-22 01:07:21 -07:00
Arnd Bergmann
436d42c61c ARM: samsung: move platform_data definitions
Platform data for device drivers should be defined in
include/linux/platform_data/*.h, not in the architecture
and platform specific directories.

This moves such data out of the samsung include directories

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Jeff Garzik <jgarzik@pobox.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: "Wolfram Sang (embedded platforms)" <w.sang@pengutronix.de>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Bryan Wu <bryan.wu@canonical.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Cc: Chris Ball <cjb@laptop.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Sangbeom Kim <sbkim73@samsung.com>
Cc: Liam Girdwood <lrg@ti.com>
Cc: linux-samsung-soc@vger.kernel.org
2012-09-19 17:42:18 +02:00
Arnd Bergmann
293b2da1b6 ARM: pxa: move platform_data definitions
Platform data for device drivers should be defined in
include/linux/platform_data/*.h, not in the architecture
and platform specific directories.

This moves such data out of the pxa include directories

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Acked-by: Marek Vasut <marex@denx.de>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Paul Parsons <lost.distance@yahoo.com>
Acked-by: Vinod Koul <vinod.koul@linux.intel.com>
Acked-By: Stefan Schmidt <stefan@openezx.org>
Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: Daniel Ribeiro <drwyrm@gmail.com>
Cc: Harald Welte <laforge@openezx.org>
Cc: Philipp Zabel <philipp.zabel@gmail.com>
Cc: Tomas Cech <sleep_walker@suse.cz>
Cc: Sergey Lapin <slapin@ossfans.org>
Cc: Jonathan Cameron <jic23@cam.ac.uk>
Cc: Dan Williams <djbw@fb.com>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Chris Ball <cjb@laptop.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Samuel Ortiz <samuel@sortiz.org>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Liam Girdwood <lrg@ti.com>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Cc: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Cc: openezx-devel@lists.openezx.org
2012-09-14 11:18:10 +02:00
Arnd Bergmann
a3b2924547 ARM: ep93xx: move platform_data definitions
Platform data for device drivers should be defined in
include/linux/platform_data/*.h, not in the architecture
and platform specific directories.

This moves such data out of the ep93xx include directories

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Ryan Mallon <rmallon@gmail.com>
Acked-by: Vinod Koul <vinod.koul@linux.intel.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Jeff Garzik <jgarzik@pobox.com>
Cc: Dan Williams <djbw@fb.com>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Liam Girdwood <lrg@ti.com>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Mika Westerberg <mika.westerberg@iki.fi>
Cc: Axel Lin <axel.lin@gmail.com>
2012-09-14 11:16:55 +02:00
Jeff Garzik
633de4cc2c [libata] export ata_dev_set_feature()
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-09-13 01:12:29 -04:00
Sergei Shtylyov
9ca7cfa4d0 libata-core: use ATA_LBA in ata_build_rw_tf()
Since READ/WRITE FPDMA QUEUED commands are 48-bit, bit 6 of the device register
means LBA, the same as for READ/WRITE DMA EXT commands. So use ATA_LBA instead
of the bare number in ata_build_rw_tf()'s branch dedicated to the NCQ commands.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-09-13 01:10:23 -04:00
Viresh Kumar
f1e70c2c53 ata/ahci_platform: Add clock framework support
On many architectures, drivers are supposed to prepare/unprepare &
enable/disable functional clock of device. This patch adds clock support for
ahci_platform.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-09-13 01:10:18 -04:00
Viresh Kumar
26fdaa7453 pata_arasan: add Device Tree probing capability
SPEAr platforms now support DT and so must convert all drivers to support DT.
This patch adds DT probing support for Arasan Compact Flash controller and
updates its documentation too.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-09-13 01:09:56 -04:00
Viresh Kumar
3f09e6c0d3 pata_arasan: Add clk_{un}prepare() support
clk_{un}prepare is mandatory for platforms using common clock framework. Since
this driver is used by SPEAr platform, which supports common clock framework,
add clk_{un}prepare() support for it.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-09-13 01:09:51 -04:00
Mark Langsdorf
8996b89d6b ata: add platform driver for Calxeda AHCI controller
Calxeda highbank SATA phy has intermittent problems bringing up a link
with Gen3 drives. Retrying the phy hard reset can work-around this issue,
but each reset also disables spread spectrum support. The reset function
also needs to reprogram the phy to enable spread spectrum support.

Create a new driver based on ahci_platform to support the Calxeda Highbank
SATA controller.

Signed-off-by: Mark Langsdorf <mark.langsdorf@calxeda.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-09-13 01:09:41 -04:00
Shaohui Xie
100f586bd0 sata_fsl: add workaround for data length mismatch on freescale V2 controller
The freescale V2 SATA controller checks if the received data length matches
the programmed length 'ttl', if not, it assumes that this is an error.
In ATAPI, the 'ttl' is based on max allocation length and not the actual
data transfer length, controller will raise 'DLM' (Data length Mismatch)
error bit in Hstatus register. Along with 'DLM', DE (Device error) and
FE (fatal Error) bits are also set in Hstatus register, 'E' (Internal Error)
bit is set in Serror register and CE (Command Error) and DE (Device error)
registers have the corresponding bit set. In this condition, we need to
clear errors in following way: in the service routine, based on 'DLM' flag,
HCONTROL[27] operation clears Hstatus, CE and DE registers, clear Serror
register.

Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Signed-off-by: Anju Bhartiya <Anju.Bhartiya@freescale.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-09-13 01:09:19 -04:00
Shane Huang
65fe1f0f66 ahci: implement aggressive SATA device sleep support
Device Sleep is a feature as described in AHCI 1.3.1 Technical Proposal.
This feature enables an HBA and SATA storage device to enter the DevSleep
interface state, enabling lower power SATA-based systems.

Aggressive Device Sleep enables the HBA to assert the DEVSLP signal as
soon as there are no commands outstanding to the device and the port
specific Device Sleep idle timer has expired. This enables autonomous
entry into the DevSleep interface state without waiting for software
in power sensitive systems.

This patch enables Aggressive Device Sleep only if both host controller
and device support it.

Tested on AMD reference board together with Device Sleep supported device
sample.

Signed-off-by: Shane Huang <shane.huang@amd.com>
Reviewed-by: Aaron Lu <aaron.lwe@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-09-13 01:08:53 -04:00
Alan Cox
7b4f6ecacb ahci: Add identifiers for ASM106x devices
They don't always appear as AHCI class devices but instead as IDE class.

Based on an initial patch by Hiroaki Nito

Resolves-bug: https://bugzilla.kernel.org/show_bug.cgi?id=42804
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-09-13 00:24:29 -04:00
Alan Cox
17c60c6b76 ahci: Add alternate identifier for the 88SE9172
This can also appear as 0x9192. Reported in bugzilla and confirmed with the
board documentation for these boards.

Resolves-bug: https://bugzilla.kernel.org/show_bug.cgi?id=42970
Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: The Stables <stable@vger.kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-09-13 00:23:57 -04:00
Ben Hutchings
1fefb8fdc6 ahci: Add JMicron 362 device IDs
The JMicron JMB362 controller supports AHCI only, but some revisions
use the IDE class code.  These need to be matched by device ID.

These additions have apparently been included by QNAP in their NAS
devices using these controllers.

References: http://bugs.debian.org/634180
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-09-13 00:23:12 -04:00
Jeff Garzik
9973a1c306 Revert "libata: enable SATA disk fua detection on default"
It caused several reported regressions.

This reverts commit 91895b786e.
2012-09-13 00:14:21 -04:00
Prarit Bhargava
d17d794c63 libata: Add a space to " 2GB ATA Flash Disk" DMA blacklist entry
commit d70e551c8e, Add " 2GB ATA Flash
Disk"/"ADMA428M" to DMA blacklist, should have added a space before 2GB.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-08-25 10:16:45 -04:00
Dan Williams
8d8e7d1314 [SCSI] libsas, ipr: cleanup ata_host flags initialization via ata_host_init
libsas and ipr pass flags to ata_host_init that are meant for the port.

ata_host flags:
	ATA_HOST_SIMPLEX	= (1 << 0),	/* Host is simplex, one DMA channel per host only */
	ATA_HOST_STARTED	= (1 << 1),	/* Host started */
	ATA_HOST_PARALLEL_SCAN	= (1 << 2),	/* Ports on this host can be scanned in parallel */
	ATA_HOST_IGNORE_ATA	= (1 << 3),	/* Ignore ATA devices on this host. */

flags passed by libsas:
	ATA_FLAG_SATA		= (1 << 1),
	ATA_FLAG_PIO_DMA	= (1 << 7), /* PIO cmds via DMA */
	ATA_FLAG_NCQ		= (1 << 10), /* host supports NCQ */

The only one that aliases is ATA_HOST_STARTED which is a 'don't care' in
the libsas and ipr cases since ata_hosts from these sources are not
registered with libata.

Reported-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Brian King <brking@us.ibm.com>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-08-24 13:10:24 +04:00
Dan Williams
2fcbdcb4c8 [SCSI] libata: export ata_port suspend/resume infrastructure for sas
Reuse ata_port_{suspend|resume}_common for sas.  This path is chosen
over adding coordination between ata-tranport and sas-transport because
libsas wants to revalidate the domain at resume-time at the host level.
It can not validate links have resumed properly until libata has had a
chance to perform its revalidation, and any sane placing of an ata_port
in the sas-transport model would delay it's resumption until after the
host.

Export the common portion of port suspend/resume (bypass pm_runtime),
and allow sas to perform these operations asynchronously (similar to the
libsas async-ata probe implmentation).  Async operation is determined by
having an external, rather than stack based, location for storing the
result of the operation.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Jacek Danecki <jacek.danecki@intel.com>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-08-24 13:10:23 +04:00
Dan Williams
ca6d43b051 [SCSI] libata: reset once
Hotplug testing with libsas currently encounters a 55 second wait for
link recovery to give up.  In the case where the user trusts the
response time of their devices permit the recovery attempts to be
limited to one.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-08-24 13:04:08 +04:00
Paolo Bonzini
1b26d29ccd [libata] scsi: implement MODE SELECT command
The cache_type file in sysfs lets users configure the disk cache in
write-through or write-back modes.  However, ata disks do not support
writing to the file because they do not implement the MODE SELECT
command.

This patch adds a translation from MODE SELECT (for the caching page
only) to the ATA SET FEATURES command.  The set of changeable parameters
answered by MODE SENSE is also adjusted accordingly.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-08-17 14:10:36 -04:00
Paolo Bonzini
6ca8e79466 [libata] scsi: support MODE SENSE request for changeable and default parameters
Since the next patch will introduce support for MODE SELECT, it
makes sense to start advertising which bits are actually changeable.
For now, the answer is none.

Default parameters can also be reported, they are simply the same
as the current parameters.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-08-17 14:09:59 -04:00
Jeff Garzik
3e451a495d [libata] scsi: Remove unlikely() from FUA check
Some other unlikely() should probably be removed as well.  A fresh look
reveals an over-enthusiasm for unlikely() in libata-scsi.c.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-08-17 14:04:50 -04:00
Zheng Liu
91895b786e libata: enable SATA disk fua detection on default
Currently, SATA disk fua detection is disabled on default because most of
devices don't support this feature at that time.  With the development of
technology, more and more SATA disks support this feature.  So now we can enable
this detection on default.

Although fua detection is defined as a kernel module parameter, it is too hard
to set its value because it must be loaded and set before system starts up.
That needs to modify initrd file.  So it is inconvenient for administrator who
needs to manage a huge number of servers.

Signed-off-by: Zheng Liu <wenqing.lz@taobao.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-08-17 13:57:12 -04:00
Jeff Garzik
04d0f1b849 [libata] new quirk, lift bridge limits for Buffalo DriveStation Quattro
Michael Eitelwein writes:

I have an external SATA drive that was slowed down by bridge limits. I
found a solution in a thread on this list posted in 2008: It introduces
whitelist entries in libata-core.c for devices with well working bridges
(e.g. email on Fri, 31 Oct 2008 01:45:27 -0400).

I added my device to this whitelist in a custom built kernel and it
works fine for weeks now. How can I have this device added on the
whitelist within the official kernel? Is this whitelist mechanism still
supported or is there a smarter way to achieve whitelisting?

I added the following whitelist entry for my Buffalo DriveStation
Quattro "BUFFALO HD-QSU2/R5":

        /* Devices that do not need bridging limits applied */
        { "MTRON MSP-SATA*",            NULL,   ATA_HORKAGE_BRIDGE_OK, },
        { "BUFFALO HD-QSU2/R5",         NULL,   ATA_HORKAGE_BRIDGE_OK, },

Reported-by: Michael Eitelwein <michael@eitelwein.net>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-08-17 13:36:59 -04:00
Paul Menzel
ebd6002815 [libata] Kconfig: Elaborate that SFF is meant for legacy and PATA stuff
Building Linux for an ASUS Eee PC 701 4G with

        ata2.00: CFA: SILICONMOTION SM223AC, , max UDMA/66
        ata2.00: 7815024 sectors, multi 0: LBA
        ata2.00: configured for UDMA/66
        scsi 1:0:0:0: Direct-Access     ATA      SILICONMOTION SM n/a  PQ: 0 ANSI: 5
        sd 1:0:0:0: [sda] 7815024 512-byte logical blocks: (4.00 GB/3.72 GiB)
        sd 1:0:0:0: [sda] Write Protect is off
        sd 1:0:0:0: [sda] Mode Sense: 00 3a 00 00
        sd 1:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
         sda: sda1
        sd 1:0:0:0: [sda] Attached SCSI disk
        sd 1:0:0:0: Attached scsi generic sg0 type 0

I followed the advice to not use the deprecated old PATA subsystem

        ATA/ATAPI/MFM/RLL support (DEPRECATED)  --->

and use the ATA subsystem instead.

        Serial ATA and Parallel ATA drivers  --->

Unfortunately I needed several tries to find out, that I needed the SFF
menu I had not selected before because I had never heard that term
before. I think it would have helped me, to have PATA or legacy IDE in
that item’s name.

Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-08-17 13:31:18 -04:00
Aaron Lu
8340091709 [libata] acpi: call ata_acpi_gtm during ata port init time
Commit 30dcf76acc mistakenly dropped
the code to get an initial gtm for the IDE channel. This caused the
following problem for Sergei:
http://marc.info/?l=linux-kernel&m=134484963618457&w=2

Fix this by adding the call back in ata_acpi_bind_host, and due to
this, the ata_ap_acpi_handle is modified accordingly.

Tested-by: Sergei Trofimovich <slyich@gmail.com>
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-08-17 13:29:27 -04:00
James Ralston
389cd78496 ata_piix: Add Device IDs for Intel Lynx Point-LP PCH
This patch adds the IDE-mode SATA Device IDs for the Intel Lynx Point-LP PCH

Signed-off-by: James Ralston <james.d.ralston@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-08-17 13:27:22 -04:00
James Ralston
77b12bc9cf ahci: Add Device IDs for Intel Lynx Point-LP PCH
This patch adds the AHCI-mode SATA Device IDs for the Intel Lynx Point-LP PCH

Signed-off-by: James Ralston <james.d.ralston@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-08-17 13:26:59 -04:00
Arnd Hannemann
1117c811a6 pata_atiixp: override cable detection on MSI E350DM-E33
The mainboard MSI E350DM-E33 is advertised with 6 SATA ports.
As it turns out, two of them seem to be driven by on-board
SATA<->PATA converters. If a disk drive is connected to one
of them kernel uses UDMA/33 mode due to cable detection:

[   34.550823] scsi4 : pata_atiixp
[   34.555517] scsi5 : pata_atiixp
[   34.555942] ata5: PATA max UDMA/100 cmd 0x1f0 ctl 0x3f6 bmdma 0xf100 irq 14
[   34.555948] ata6: PATA max UDMA/100 cmd 0x170 ctl 0x376 bmdma 0xf108 irq 15
...
[   35.040799] ata5.00: ATA-8: WDC WD20EADS-00R6B0, 01.00A01, max UDMA/133
[   35.040806] ata5.00: 3907029168 sectors, multi 16: LBA48 NCQ (depth 0/32)
[   35.040817] ata5.00: limited to UDMA/33 due to 40-wire cable
[   35.049166] ata5.00: configured for UDMA/33
[   35.049402] scsi 4:0:0:0: Direct-Access     ATA      WDC WD20EADS-00R 01.0 PQ: 0 ANSI: 5

This patch forces "short cable" mode on this board, as it seems clear that
the on-board SATA<->PATA "cable" is short.
With this patch the disk is configured for UDMA/100:

[    5.976756] ata5.00: ATA-8: WDC WD20EADS-00R6B0, 01.00A01, max UDMA/133
[    5.996434] ata5.00: 3907029168 sectors, multi 16: LBA48 NCQ (depth 0/32)
[    6.024787] ata5.00: configured for UDMA/100

Testing revealed no transfer issues.

Signed-off-by: Arnd Hannemann <arnd@arndnet.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-08-17 13:26:51 -04:00
Rob Herring
bbb4ab43f8 ahci: un-staticize ahci_dev_classify
Make ahci_dev_classify available to the ahci platform driver for custom
hard reset function.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-08-17 13:26:22 -04:00
Linus Torvalds
44d82e2963 ARM: arm-soc Marvell Orion device-tree updates
This branch contains a set of device-tree conversions for Marvell Orion
 platforms that were staged early but took a few tries to get the branch
 into a format where it was suitable for us to pick up.
 
 Given that most people working on these platforms are hobbyists with
 limited time, we were a bit more flexible with merging it even though
 it came in late.
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Merge tag 'dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull arm-soc Marvell Orion device-tree updates from Olof Johansson:
 "This contains a set of device-tree conversions for Marvell Orion
  platforms that were staged early but took a few tries to get the
  branch into a format where it was suitable for us to pick up.

  Given that most people working on these platforms are hobbyists with
  limited time, we were a bit more flexible with merging it even though
  it came in late."

* tag 'dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (21 commits)
  ARM: Kirkwood: Replace mrvl with marvell
  ARM: Kirkwood: Describe GoFlex Net LEDs and SATA in DT.
  ARM: Kirkwood: Describe Dreamplug LEDs in DT.
  ARM: Kirkwood: Describe iConnects LEDs in DT.
  ARM: Kirkwood: Describe iConnects temperature sensor in DT.
  ARM: Kirkwood: Describe IB62x0 LEDs in DT.
  ARM: Kirkwood: Describe IB62x0 gpio-keys in DT.
  ARM: Kirkwood: Describe DNS32? gpio-keys in DT.
  ARM: Kirkwood: Move common portions into a kirkwood-dnskw.dtsi
  ARM: Kirkwood: Replace DNS-320/DNS-325 leds with dt bindings
  ARM: Kirkwood: Describe DNS325 temperature sensor in DT.
  ARM: Kirkwood: Use DT to configure SATA device.
  ARM: kirkwood: use devicetree for SPI on dreamplug
  ARM: kirkwood: Add LS-XHL and LS-CHLv2 support
  ARM: Kirkwood: Initial DTS support for Kirkwood GoFlex Net
  ARM: Kirkwood: Add basic device tree support for QNAP TS219.
  ATA: sata_mv: Add device tree support
  ARM: Orion: DTify the watchdog timer.
  ARM: Orion: Add arch support needed for I2C via DT.
  ARM: kirkwood: use devicetree for orion-spi
  ...

Conflicts:
	drivers/watchdog/orion_wdt.c
2012-08-02 11:50:24 -07:00
Viresh Kumar
d14fb1e930 ata/pata_arasan: remove conditional compilation of clk code
With addition of dummy clk_*() calls for non CONFIG_HAVE_CLK cases in
clk.h, there is no need to have clk code enclosed in #ifdef
CONFIG_HAVE_CLK, #endif macros.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Cc: Jeff Garzik <jgarzik@redhat.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: viresh kumar <viresh.linux@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-30 17:25:12 -07:00
Andrew Lunn
97b414e119 ATA: sata_mv: Add device tree support
Add support for instantiating this driver from device tree, and add
the necassary DT information to the kirkwood.dtsi file.

This is based on previous work by Michael Walle and Jason Cooper.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Josh Coombs <josh.coombs@gmail.com>
2012-07-27 16:48:45 +02:00
Jeff Garzik
641589bff7 [libata] pata_cmd64x: whitespace cleanup
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-07-25 16:07:40 -04:00
Stephen Rothwell
354b2eac38 libata-acpi: fix up for acpi_pm_device_sleep_state API
After merging the libata tree, today's [2012-07-01] linux-next build (x86_64
allmodconfig) failed like this:

drivers/ata/libata-acpi.c: In function 'ata_acpi_set_state':
drivers/ata/libata-acpi.c:872:5: error: too few arguments to function 'acpi_pm_device_sleep_state'
include/acpi/acpi_bus.h:418:5: note: declared here

Caused by commit 3bd46600a7 ("libata-acpi: add ata port runtime D3Cold
support") from the libata tree interacting with commit ee85f54371
("ACPI/PM: specify lowest allowed state for device sleep state") from the
pci tree.

This patch adds ACPI_STATE_D3 as the new third parameter to
acpi_pm_device_sleep_state()

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-07-25 16:02:19 -04:00