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Currently, we fetch sense data for a _successful_ command if either:
1) Command was NCQ and ATA_DFLAG_CDL_ENABLED flag set (flag
ATA_DFLAG_CDL_ENABLED will only be set if the Successful NCQ command
sense data supported bit is set); or
2) Command was non-NCQ and regular sense data reporting is enabled.
This means that case 2) will trigger for a non-NCQ command which has
ATA_SENSE bit set, regardless if CDL is enabled or not.
This decision was by design. If the device reports that it has sense data
available, it makes sense to fetch that sense data, since the sk/asc/ascq
could be important information regardless if CDL is enabled or not.
However, the fetching of sense data for a successful command is done via
ATA EH. Considering how intricate the ATA EH is, we really do not want to
invoke ATA EH unless absolutely needed.
Before commit 18bd7718b5c4 ("scsi: ata: libata: Handle completion of CDL
commands using policy 0xD") we never fetched sense data for successful
commands.
In order to not invoke the ATA EH unless absolutely necessary, even if the
device claims support for sense data reporting, only fetch sense data for
successful (NCQ and non-NCQ commands) commands that are using CDL.
[Damien] Modified the check to test the qc flag ATA_QCFLAG_HAS_CDL
instead of the device support for CDL, which is implied for commands
using CDL.
Fixes: 3ac873c76d79 ("ata: libata-core: fix when to fetch sense data for successful commands")
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
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Micron 1100 drives lock up when encountering queued TRIM command. It is
a quite old hardware series, for past years we have been running our
machines with these drives using libata.force=noncqtrim.
[Damien] Move the "Crucial_CT*M500*" entry to keep Micron and Crucial
entries together.
Signed-off-by: Pawel Zmarzly <pzmarzly@meta.com>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
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Remove ata_bus_probe() as it is unused.
Also, remove references to ata_bus_probe and port_disable in
Documentation/driver-api/libata.rst, as neither exist anymore.
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Reviewed-by: Jason Yan <yanaijie@huawei.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
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Rename __ata_port_probe() to ata_port_probe() and drop the wrapper
ata_sas_async_probe().
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Reviewed-by: Jason Yan <yanaijie@huawei.com>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
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Just used in one place.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Reviewed-by: Jason Yan <yanaijie@huawei.com>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
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With commit 65a15d6560df ("scsi: ipr: Remove SATA support") all
libata drivers now have the error_handler() callback provided,
so we can stop checking for non-existing error_handler callback.
Signed-off-by: Hannes Reinecke <hare@suse.de>
[niklas: fixed review comments, rebased, solved conflicts during rebase,
fixed bug that unconditionally dumped all QCs, removed the now unused
function ata_dump_status(), removed the now unreachable failure paths in
atapi_qc_complete(), removed the non-EH function to request ATAPI sense]
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Reviewed-by: Jason Yan <yanaijie@huawei.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
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sata_deb_timing_{hotplug|long|normal}[] store 'unsigned long' debounce
timeouts in ms, while sata_link_debounce() eventually uses those timeouts
by calling ata_{deadline|msleep}( which take just 'unsigned int'. Change
the debounce timeout table element's type to 'unsigned int' -- all these
timeouts happily fit into 'unsigned int'...
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
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ata_wait_register() passes its 'unsigned long {interval|timeout}' params
verbatim to ata_{msleep|deadline}() that just take 'unsigned int' param
for the time intervals in ms -- eliminate unneeded implicit casts...
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
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The condition to fetch sense data was supposed to be:
ATA_SENSE set AND either
1) Command was NCQ and ATA_DFLAG_CDL_ENABLED flag set (flag
ATA_DFLAG_CDL_ENABLED will only be set if the Successful NCQ command
sense data supported bit is set); or
2) Command was non-NCQ and regular sense data reporting is enabled.
However the check in 2) accidentally had the negation at the wrong place,
causing it to try to fetch sense data if it was a non-NCQ command _or_
if regular sense data reporting was _not_ enabled.
Fix this by removing the extra parentheses that should not be there,
such that only the correct return (ata_is_ncq()) is negated.
Fixes: 18bd7718b5c4 ("scsi: ata: libata: Handle completion of CDL commands using policy 0xD")
Reported-by: Borislav Petkov <bp@alien8.de>
Closes: https://lore.kernel.org/linux-ide/20230722155621.GIZLv8JbURKzHtKvQE@fat_crate.local/
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Tested-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
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Pull SCSI updates from James Bottomley:
"Updates to the usual drivers (ufs, pm80xx, libata-scsi, smartpqi,
lpfc, qla2xxx).
We have a couple of major core changes impacting other systems:
- Command Duration Limits, which spills into block and ATA
- block level Persistent Reservation Operations, which touches block,
nvme, target and dm
Both of these are added with merge commits containing a cover letter
explaining what's going on"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (187 commits)
scsi: core: Improve warning message in scsi_device_block()
scsi: core: Replace scsi_target_block() with scsi_block_targets()
scsi: core: Don't wait for quiesce in scsi_device_block()
scsi: core: Don't wait for quiesce in scsi_stop_queue()
scsi: core: Merge scsi_internal_device_block() and device_block()
scsi: sg: Increase number of devices
scsi: bsg: Increase number of devices
scsi: qla2xxx: Remove unused nvme_ls_waitq wait queue
scsi: ufs: ufs-pci: Add support for Intel Arrow Lake
scsi: sd: sd_zbc: Use PAGE_SECTORS_SHIFT
scsi: ufs: wb: Add explicit flush_threshold sysfs attribute
scsi: ufs: ufs-qcom: Switch to the new ICE API
scsi: ufs: dt-bindings: qcom: Add ICE phandle
scsi: ufs: ufs-mediatek: Set UFSHCD_QUIRK_MCQ_BROKEN_RTC quirk
scsi: ufs: ufs-mediatek: Set UFSHCD_QUIRK_MCQ_BROKEN_INTR quirk
scsi: ufs: core: Add host quirk UFSHCD_QUIRK_MCQ_BROKEN_RTC
scsi: ufs: core: Add host quirk UFSHCD_QUIRK_MCQ_BROKEN_INTR
scsi: ufs: core: Remove dedicated hwq for dev command
scsi: ufs: core: mcq: Fix the incorrect OCS value for the device command
scsi: ufs: dt-bindings: samsung,exynos: Drop unneeded quotes
...
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git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata
Pull ata updates from Damien Le Moal:
- Add support for the .remove_new callback to the ata_platform code to
simplify device removal interface (Uwe)
- Code simplification in ata_dev_revalidate() (Yahu)
- Fix code indentation and coding style in the pata_parport protocol
modules to avoid warnings from static code analyzers (me)
- Clarify ata_eh_qc_retry() behavior with better comments (Niklas)
- Simplify and improve ata_change_queue_depth() behavior to have a
consistent behavior between libsas managed devices and libata managed
devices (e.g. AHCI connected devices) (me)
- Cleanup libata-scsi and libata-eh code to use the ata_ncq_enabled()
and ata_ncq_supported() helpers instead of open coding flags tests
(me)
- Cleanup ahci_reset_controller() code (me)
- Change the pata_octeon_cf and sata_svw drivers to use
of_property_read_reg() to simplify the code (Rob, me)
- Remove unnecessary include files from ahci_octeon driver (me)
- Modify the DesignWare ahci dt bindings to add support for the
Rockchip RK3588 AHCI (Sebastian)
* tag 'ata-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata: (29 commits)
dt-bindings: phy: rockchip: rk3588 has two reset lines
dt-bindings: ata: dwc-ahci: add Rockchip RK3588
dt-bindings: ata: dwc-ahci: add PHY clocks
ata: ahci_octeon: Remove unnecessary include
ata: pata_octeon_cf: Add missing header include
ata: ahci: Cleanup ahci_reset_controller()
ata: Use of_property_read_reg() to parse "reg"
ata: libata-scsi: Use ata_ncq_supported in ata_scsi_dev_config()
ata: libata-eh: Use ata_ncq_enabled() in ata_eh_speed_down()
ata: libata-sata: Improve ata_change_queue_depth()
ata: libata-sata: Simplify ata_change_queue_depth()
ata: libata-eh: Clarify ata_eh_qc_retry() behavior at call site
ata: pata_parport: Fix on26 module code indentation and style
ata: pata_parport: Fix on20 module code indentation and style
ata: pata_parport: Fix ktti module code indentation and style
ata: pata_parport: Fix kbic module code indentation and style
ata: pata_parport: Fix friq module code indentation and style
ata: pata_parport: Fix fit3 module code indentation and style
ata: pata_parport: Fix fit2 module code indentation and style
ata: pata_parport: Fix epia module code indentation and style
...
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When an ATA port is resumed from sleep, the port is reset and a power
management request issued to libata EH to reset the port and rescanning
the device(s) attached to the port. Device rescanning is done by
scheduling an ata_scsi_dev_rescan() work, which will execute
scsi_rescan_device().
However, scsi_rescan_device() takes the generic device lock, which is
also taken by dpm_resume() when the SCSI device is resumed as well. If
a device rescan execution starts before the completion of the SCSI
device resume, the rcu locking used to refresh the cached VPD pages of
the device, combined with the generic device locking from
scsi_rescan_device() and from dpm_resume() can cause a deadlock.
Avoid this situation by changing struct ata_port scsi_rescan_task to be
a delayed work instead of a simple work_struct. ata_scsi_dev_rescan() is
modified to check if the SCSI device associated with the ATA device that
must be rescanned is not suspended. If the SCSI device is still
suspended, ata_scsi_dev_rescan() returns early and reschedule itself for
execution after an arbitrary delay of 5ms.
Reported-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Reported-by: Joe Breuer <linux-kernel@jmbreuer.net>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217530
Fixes: a19a93e4c6a9 ("scsi: core: pm: Rely on the device driver core for async power management")
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Tested-by: Joe Breuer <linux-kernel@jmbreuer.net>
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A CDL timeout for policy 0xF is defined as a NCQ error, just with a CDL
specific sk/asc/ascq in the sense data. Therefore, the existing code in
libata does not need to be modified to handle a policy 0xF CDL timeout.
For Command Duration Limits policy 0xD:
The device shall complete the command without error with the additional
sense code set to DATA CURRENTLY UNAVAILABLE.
Since a CDL timeout for policy 0xD is not an error, we cannot use the NCQ
Command Error log (10h).
Instead, we need to read the Sense Data for Successful NCQ Commands log
(0Fh).
In the success case, just like in the error case, we cannot simply read a
log page from the interrupt handler itself, since reading a log page
involves sending a READ LOG DMA EXT or READ LOG EXT command.
Therefore, we add a new EH action ATA_EH_GET_SUCCESS_SENSE. When a command
completes without error, and when the ATA_SENSE bit is set, this new action
is set as pending, and EH is scheduled.
This way, similar to the NCQ error case, the log page will be read from EH
context.
An alternative would have been to add a new kthread or workqueue to handle
this. However, extending EH can be done with minimal changes and avoids the
need to synchronize a new kthread/workqueue with EH.
Co-developed-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Link: https://lore.kernel.org/r/20230511011356.227789-20-nks@flawful.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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For devices supporting the command duration limits feature, translate the
dld field of read and write operation to set the command duration limit
index field of the command task file when the duration limit feature is
enabled.
The function ata_set_tf_cdl() is introduced to do this. For unqueued (non
NCQ) read and write operations, this function sets the command duration
limit index set as the lower 3 bits of the feature field. For queued NCQ
read/write commands, the index is set as the lower 3 bits of the auxiliary
field.
The flag ATA_QCFLAG_HAS_CDL is introduced to indicate that a command
taskfile has a non zero cdl field.
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Igor Pylypiv <ipylypiv@google.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Co-developed-by: Niklas Cassel <niklas.cassel@wdc.com>
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Link: https://lore.kernel.org/r/20230511011356.227789-19-nks@flawful.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Add support for the ATA feature control sub-page of the control mode page
to enable/disable the command duration limits feature using the cdl_ctrl
field of the ATA feature control sub-page.
Both mode sense and mode select translation are supported. For mode sense,
the ata device flag ATA_DFLAG_CDL_ENABLED is used to cache the status of
the command duration limits feature. Enabling this feature is done using a
SET FEATURES command with a cdl action set to 1 when the page cdl_ctrl
field value is 0x2 (T2A and T2B pages supported). If this field is 0, CDL
is disabled using the SET FEATURES command with a cdl action set to 0.
Since a device CDL and NCQ priority features should not be used
simultaneously, ata_mselect_control_ata_feature() returns an error when
attempting to enable CDL with the device priority feature enabled.
Conversely, the function ata_ncq_prio_enable_store() used to enable the use
of the device NCQ priority feature through sysfs is modified to return an
error if the device CDL feature is enabled.
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Co-developed-by: Niklas Cassel <niklas.cassel@wdc.com>
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Link: https://lore.kernel.org/r/20230511011356.227789-18-nks@flawful.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Use the supported capabilities identify device data log page to detect if a
device supports the command duration limits feature. For devices supporting
this feature, set the device flag ATA_DFLAG_CDL. To support SCSI-ATA
translation, retrieve the command duration limits log page 18h and cache
this page content using the cdl array added to the ata_device data
structure.
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Co-developed-by: Niklas Cassel <niklas.cassel@wdc.com>
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Link: https://lore.kernel.org/r/20230511011356.227789-15-nks@flawful.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Simplify the condition used in ata_dev_revalidate() to not
issue identify commands to port multiplier devices.
Signed-off-by: Yahu Gao <gaoyh12@lenovo.com>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
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The function returned zero unconditionally, so the function returning an
int is something between useless and irritating. With the goal to make
platform drivers' remove function return void, it's helpful to convert
the function accordingly. This converts several drivers to the new
.remove_new callback that was introduced to smoothen the platform driver
conversion.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Acked-by: Serge Semin <fancer.lancer@gmail.com>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
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Make it explicit that ATA host templates are not modified.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Serge Semin <fancer.lancer@gmail.com> (for DWC AHCI SATA)
Reviewed-by: John Garry <john.g.garry@oracle.com>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com> (for Tegra)
Cc: Christoph Hellwig <hch@lst.de>
Cc: Ming Lei <ming.lei@redhat.com>
Cc: Hannes Reinecke <hare@suse.de>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20230322195515.1267197-5-bvanassche@acm.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata
Pull ATA updates from Damien Le Moal:
- Small cleanup of the pata_octeon driver to drop a useless platform
callback (Uwe)
- Simplify ata_scsi_cmd_error_handler() code using the fact that
ap->ops->error_handler is NULL most of the time (Wenchao)
- Several patches improving libata error handling. This is in
preparation for supporting the command duration limits (CDL) feature.
The changes allow handling corner cases of ATA NCQ errors which do
not happen with regular drives but will be triggered with CDL drives
(Niklas)
- Simplify the qc_fill_rtf operation (me)
- Improve SCSI command translation for REPORT_SUPPORTED_OPERATION_CODES
command (me)
- Cleanup of libata FUA handling.
This falls short of enabling FUA for ATA drives that support it by
default as there were concerns that old drives would break. The
series however fixes several issues with the FUA support to ensure
that FUA is reported as being supported only for drives that can
handle all possible write cases (NCQ and non-NCQ). A check in the
block layer is also added to ensure that we never see read FUA
commands (current behavior) (me)
- Several patches to move the old PARIDE (parallel port IDE) driver to
libata as pata_parport. Given that this driver also needs protocol
modules, the driver code resides in its own pata_parport directoy
under drivers/ata (Ondrej)
* tag 'ata-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata:
ata: pata_parport: Fix ida_alloc return value error check
drivers/block: Move PARIDE protocol modules to drivers/ata/pata_parport
drivers/block: Remove PARIDE core and high-level protocols
ata: pata_parport: add driver (PARIDE replacement)
ata: libata: exclude FUA support for known buggy drives
ata: libata: Fix FUA handling in ata_build_rw_tf()
ata: libata: cleanup fua support detection
ata: libata: Rename and cleanup ata_rwcmd_protocol()
ata: libata: Introduce ata_ncq_supported()
block: add a sanity check for non-write flush/fua bios
ata: libata-scsi: improve ata_scsiop_maint_in()
ata: libata-scsi: do not overwrite SCSI ML and status bytes
ata: libata: move NCQ related ATA_DFLAGs
ata: libata: respect successfully completed commands during errors
ata: libata: read the shared status for successful NCQ commands once
ata: libata: simplify qc_fill_rtf port operation interface
ata: scsi: rename flag ATA_QCFLAG_FAILED to ATA_QCFLAG_EH
ata: libata-eh: Cleanup ata_scsi_cmd_error_handler()
ata: octeon: Drop empty platform remove function
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Samsung MZ7LH drives are spewing messages like this in to dmesg with AMD
SATA controllers:
ata1.00: exception Emask 0x0 SAct 0x7e0000 SErr 0x0 action 0x6 frozen
ata1.00: failed command: SEND FPDMA QUEUED
ata1.00: cmd 64/01:88:00:00:00/00:00:00:00:00/a0 tag 17 ncq dma 512 out
res 40/00:01:01:4f:c2/00:00:00:00:00/00 Emask
0x4 (timeout)
Since this was seen previously with SSD 840 EVO drives in
https://bugzilla.kernel.org/show_bug.cgi?id=203475 let's add the same
fix for these drives as the EVOs have, since they likely have very
similar firmwares.
Signed-off-by: Patrick McLean <chutzpah@gentoo.org>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
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Commit 2dc0b46b5ea3 ("libata: sata_down_spd_limit should return if
driver has not recorded sstatus speed") changed the behavior of
sata_down_spd_limit() to return doing nothing if a drive does not report
a current link speed, to avoid reducing the link speed to the lowest 1.5
Gbps speed.
However, the change assumed that a speed was recorded before probing
(e.g. before a suspend/resume) and set in link->sata_spd. This causes
problems with adapters/drives combination failing to establish a link
speed during probe autonegotiation. One example reported of this problem
is an mvebu adapter with a 3Gbps port-multiplier box: autonegotiation
fails, leaving no recorded link speed and no reported current link
speed. Probe retries also fail as no action is taken by sata_set_spd()
after each retry.
Fix this by returning early in sata_down_spd_limit() only if we do have
a recorded link speed, that is, if link->sata_spd is not 0. With this
fix, a failed probe not leading to a recorded link speed is retried at
the lower 1.5 Gbps speed, with the link speed potentially increased
later on the second revalidate of the device if the device reports
that it supports higher link speeds.
Reported-by: Marius Dinu <marius@psihoexpert.ro>
Fixes: 2dc0b46b5ea3 ("libata: sata_down_spd_limit should return if driver has not recorded sstatus speed")
Reviewed-by: Niklas Cassel <niklas.cassel@wdc.com>
Tested-by: Marius Dinu <marius@psihoexpert.ro>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
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Thread [1] reported back in 2012 problems with enabling FUA for 3
different drives. Add these drives to ata_device_blacklist[] to mark
them with the ATA_HORKAGE_NO_FUA flag. To be conservative and avoid
problems on old systems, the model number for the three new entries
are defined as to widely match all drives in the same product line.
[1]: https://lore.kernel.org/lkml/CA+6av4=uxu_q5U_46HtpUt=FSgbh3pZuAEY54J5_xK=MKWq-YQ@mail.gmail.com/
Suggested-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Maciej S. Szmigiero <maciej.szmigiero@oracle.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Niklas Cassel <niklas.cassel@wdc.com>
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If a user issues a write command with the FUA bit set for a device with
NCQ support disabled (that is, the device queue depth was set to 1), the
LBA 48 command WRITE DMA FUA EXT must be used. However,
ata_build_rw_tf() ignores this and first tests if LBA 28 can be used
based on the write command sector and number of blocks. That is, for
small FUA writes at low LBAs, ata_rwcmd_protocol() will cause the write
to fail.
Fix this by preventing the use of LBA 28 for any FUA write request.
Given that the WRITE MULTI FUA EXT command is marked as obsolete in the
ATA specification since ACS-3 (published in 2013), remove the
ATA_CMD_WRITE_MULTI_FUA_EXT command from the ata_rw_cmds array.
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Niklas Cassel <niklas.cassel@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
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Move the detection of a device FUA support from
ata_scsiop_mode_sense()/ata_dev_supports_fua() to device scan time in
ata_dev_configure().
The function ata_dev_config_fua() is introduced to detect if a device
supports FUA and this support is indicated using the new device flag
ATA_DFLAG_FUA.
In order to blacklist known buggy devices, the horkage flag
ATA_HORKAGE_NO_FUA is introduced. Similarly to other horkage flags, the
libata.force= arguments "fua" and "nofua" are also introduced to allow
a user to control this horkage flag through the "force" libata
module parameter.
The ATA_DFLAG_FUA device flag is set only and only if all the following
conditions are met:
* libata.fua module parameter is set to 1
* The device supports the WRITE DMA FUA EXT command,
* The device is not marked with the ATA_HORKAGE_NO_FUA flag, either from
the blacklist or set by the user with libata.force=nofua
* The device supports NCQ (while this is not mandated by the standards,
this restriction is introduced to avoid problems with older non-NCQ
devices).
Enabling or diabling libata FUA support for all devices can now also be
done using the "force=[no]fua" module parameter when libata.fua is set
to 1.
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Niklas Cassel <niklas.cassel@wdc.com>
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Rename ata_rwcmd_protocol() to ata_set_rwcmd_protocol() to better
reflect the fact that this function sets a task file command and
protocol. The arguments order is also reversed and the function return
type changed to a bool to indicate if the command and protocol were set
correctly (instead of returning a completely arbitrary "-1" value.
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Niklas Cassel <niklas.cassel@wdc.com>
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The name ATA_QCFLAG_FAILED is misleading since it does not mean that a
QC completed in error, or that it didn't complete at all. It means that
libata decided to schedule EH for the QC, so the QC is now owned by the
libata error handler (EH).
The normal execution path is responsible for not accessing a QC owned
by EH. libata core enforces the rule by returning NULL from
ata_qc_from_tag() for QCs owned by EH.
It is quite easy to mistake that a QC marked with ATA_QCFLAG_FAILED was
an error. However, a QC that was actually an error is instead indicated
by having qc->err_mask set. E.g. when we have a NCQ error, we abort all
QCs, which currently will mark all QCs as ATA_QCFLAG_FAILED. However, it
will only be a single QC that is an error (i.e. has qc->err_mask set).
Rename ATA_QCFLAG_FAILED to ATA_QCFLAG_EH to more clearly highlight that
this flag simply means that a QC is now owned by EH. This new name will
not mislead to think that the QC was an error (which is instead
indicated by having qc->err_mask set).
This also makes it more obvious that the EH code skips all QCs that do
not have ATA_QCFLAG_EH set (rather than ATA_QCFLAG_FAILED), since the EH
code should simply only care about QCs that are owned by EH itself.
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
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ata_read_log_page() first tries to read the log using READ LOG DMA EXT.
If that fails it will instead try to read the log using READ LOG EXT.
ata_exec_internal_sg() is synchronous, so it will wait for the command to
finish. If we actually got an error back from the device, it is correct
to retry. However, if the command timed out, ata_exec_internal_sg() will
freeze the port.
There is no point in retrying if the port is frozen, as
ata_exec_internal_sg() will return AC_ERR_SYSTEM on a frozen port,
without ever sending the command down to the drive.
Therefore, avoid retrying if the first command froze the port, as that
will result in a misleading AC_ERR_SYSTEM error print, instead of printing
the error that actually caused the port to be frozen (AC_ERR_TIMEOUT).
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
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Clean up the code by making use of the newly introduced
ata_port_is_frozen() helper function.
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata
Pull ata updates from Damien Le Moal:
- Print the timeout value for internal command failures due to a
timeout (from Tomas)
- Improve parameter names in ata_dev_set_feature() to clarify this
function use (from Niklas)
- Improve the ahci driver low power mode setting initialization to
allow more flexibility for the user (from Rafael)
- Several patches to remove redundant variables in libata-core,
libata-eh and the pata_macio driver and to fix typos in comments
(from Jinpeng, Shaomin, Ye)
- Some code simplifications and macro renaming (for clarity) in various
functions of libata-core (from me)
- Add a missing check for a potential failure of sata_scr_read() in
sata_print_link_status() (from Li)
- Cleanup of libata Kconfig PATA_PLATFORM and PATA_OF_PLATFORM options
(from Lukas)
- Cleanups of ata dt-bindings and improvements of libahci_platform,
ahci and libahci code (from Serge)
- New driver for Synopsys AHCI SATA controllers, based of the generic
ahci code (from Serge). One compilation warning fix is added for this
driver (from me)
- Several fixes to macros used to discover a drive capabilities to be
consistent with the ACS specifications (from Niklas)
- A couple of simplifcations to some libata functions, removing
unnecessary arguments (from Niklas)
- An improvements to libata-eh code to avoid unnecessary link reset
when revalidating a drive after a failed command. In practice, this
extra, unneeded reset, reset does not cause any arm beyond slightly
slowing down error recovery (from Niklas)
* tag 'ata-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata: (45 commits)
ata: libata-eh: avoid needless hard reset when revalidating link
ata: libata: drop superfluous ata_eh_analyze_tf() parameter
ata: libata: drop superfluous ata_eh_request_sense() parameter
ata: fix ata_id_has_dipm()
ata: fix ata_id_has_ncq_autosense()
ata: fix ata_id_has_devslp()
ata: fix ata_id_sense_reporting_enabled() and ata_id_has_sense_reporting()
ata: libata-eh: Remove the unneeded result variable
ata: ahci_st: Enable compile test
ata: ahci_st: Fix compilation warning
MAINTAINERS: Add maintainers for DWC AHCI SATA driver
ata: ahci-dwc: Add Baikal-T1 AHCI SATA interface support
ata: ahci-dwc: Add platform-specific quirks support
dt-bindings: ata: ahci: Add Baikal-T1 AHCI SATA controller DT schema
ata: ahci: Add DWC AHCI SATA controller support
ata: libahci_platform: Add function returning a clock-handle by id
dt-bindings: ata: ahci: Add DWC AHCI SATA controller DT schema
ata: ahci: Introduce firmware-specific caps initialization
ata: ahci: Convert __ahci_port_base to accepting hpriv as arguments
ata: libahci: Don't read AHCI version twice in the save-config method
...
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Commit 1527f69204fe ("ata: ahci: Add Green Sardine vendor ID as
board_ahci_mobile") added an explicit entry for AMD Green Sardine
AHCI controller using the board_ahci_mobile configuration (this
configuration has later been renamed to board_ahci_low_power).
The board_ahci_low_power configuration enables support for low power
modes.
This explicit entry takes precedence over the generic AHCI controller
entry, which does not enable support for low power modes.
Therefore, when commit 1527f69204fe ("ata: ahci: Add Green Sardine
vendor ID as board_ahci_mobile") was backported to stable kernels,
it make some Pioneer optical drives, which was working perfectly fine
before the commit was backported, stop working.
The real problem is that the Pioneer optical drives do not handle low
power modes correctly. If these optical drives would have been tested
on another AHCI controller using the board_ahci_low_power configuration,
this issue would have been detected earlier.
Unfortunately, the board_ahci_low_power configuration is only used in
less than 15% of the total AHCI controller entries, so many devices
have never been tested with an AHCI controller with low power modes.
Fixes: 1527f69204fe ("ata: ahci: Add Green Sardine vendor ID as board_ahci_mobile")
Cc: stable@vger.kernel.org
Reported-by: Jaap Berkhout <j.j.berkhout@staalenberk.nl>
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
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sata_scr_read() could return negative error code on failure. Check the
return value when reading the control register.
Signed-off-by: Li Zhong <floridsleeves@gmail.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
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The err_mask variable is not useful. Remove it.
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
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Since ata_build_rw_tf() is only called from ata_scsi_rw_xlat() with the
tf, dev and tag arguments obtained from the queued command structure,
we can simplify the interface of ata_build_rw_tf() by passing directly
the qc structure as argument.
Furthermore, since ata_scsi_rw_xlat() is never used for internal
commands, we can also remove the internal tag check for the NCQ case.
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
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Rename ATA_DFLAG_NCQ_PRIO_ENABLE to ATA_DFLAG_NCQ_PRIO_ENABLED to match
the fact that this flags indicates if NCQ priority use is enabled by the
user.
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
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Return value from ata_exec_internal() directly instead of
taking this in another redundant variable.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Jinpeng Cui <cui.jinpeng2@zte.com.cn>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
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ata_dev_set_feature() is currently used for enabling/disabling any ATA
feature, e.g. SETFEATURES_SPINUP and SETFEATURE_SENSE_DATA, i.e. it is
not only used to enable/disable SATA specific features.
For most features, the enable/disable bit is specified in the subcommand
specific field "count".
It is only for the specific subcommands "Enable SATA feature" (0x10) and
"Disable SATA feature" (0x90) where the field "count" is used to specify
a feature instead of enable/disable. The parameter names for this
function are thus quite misleading.
Rename the parameter names to be more generic and in line with ACS-5,
and remove the references to "SATA FEATURES" in the kernel-doc.
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
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Printing the timeout value may help in troubleshooting failures.
Signed-off-by: David Milburn <dmilburn@redhat.com>
Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
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Make the 'timeout' parameter to ata_exec_internal_sg() *unsigned int* as
msecs_to_jiffies() that it calls takes just *unsigned int* for the time in
milliseconds. Then follow the suit with ata_exec_internal(), its only
caller; also fix up ata_dev_set_feature(), the only ata_exec_internal()'s
caller that explicitly passes *unsigned long* variable for timeout...
Found by Linux Verification Center (linuxtesting.org) with the SVACE static
analysis tool.
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
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ata_exec_internal_sg() is only called by ata_exec_internal() further in
the same file, so we can make it *static* and remove its prototype from
drivers/ata/libata.h...
Suggested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
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The packed transfer mode masks and also the {pio|mwdma|udma}_mask fields
of *struct*s ata_device and ata_port_info are declared as *unsigned long*
(which is a 64-bit type on 64-bit architectures) but actually the packed
masks occupy only 20 bits (7 PIO modes, 5 MWDMA modes, and 8 UDMA modes)
and the PIO/MWDMA/UDMA masks easily fit into just 8 bits each, so we can
safely use (always 32-bit) *unsigned int* variables instead. This saves
745 bytes of object code in libata-core.o alone, not to mention LLDDs...
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
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Using *else* after *return* doesn't make much sense -- getting rid of such
*else* branches reduces the indentation levels and thus reduces # of LoC...
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
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The code multiplying the # of cylinders/heads/sectors in ata_id_n_sectors()
to get a disk capacity implicitly uses the *int* type for that calculation
and casting the result to 'u64' before returning ensues a sign extension.
Explicitly casting the 'u16' typed multipliers to 'u32' results in avoiding
a sign extension instruction and so in a more compact code...
Found by Linux Verification Center (linuxtesting.org) with the SVACE static
analysis tool.
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
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The concurrent positioning ranges log is not a fixed size and may depend
on how many ranges are supported by the device. This patch uses the size
reported in the GPL directory to determine the number of pages supported
by the device before attempting to read this log page.
This resolves this error from the dmesg output:
ata6.00: Read log 0x47 page 0x00 failed, Emask 0x1
Cc: stable@vger.kernel.org
Fixes: fe22e1c2f705 ("libata: support concurrent positioning ranges log")
Signed-off-by: Tyler Erickson <tyler.erickson@seagate.com>
Reviewed-by: Muhammad Ahmad <muhammad.ahmad@seagate.com>
Tested-by: Michael English <michael.english@seagate.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
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In an unlikely (and probably wrong?) case that the 'ppi' parameter of
ata_host_alloc_pinfo() points to an array starting with a NULL pointer,
there's going to be a kernel oops as the 'pi' local variable won't get
reassigned from the initial value of NULL. Initialize 'pi' instead to
'&ata_dummy_port_info' to fix the possible kernel oops for good...
Found by Linux Verification Center (linuxtesting.org) with the SVACE static
analysis tool.
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
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To facilitate debugging of drive issues in the field without kernel
changes (e.g. temporary test patches), add an entry for most horkage
flags in the force_tbl array to allow controlling these horkage
settings with the libata.force kernel boot parameter.
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Reviewed-by: Hannes Reinecke <hare@suse.de>
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Similarly to the horkage flags, introduce the force_lflag_onoff() macro
to define struct ata_force_param entries of the force_tbl array that
allow turning on or off a link flag using the libata.force boot
parameter. To be consistent with naming, the macro force_lflag() is
renamed to force_lflag_on().
Using force_lflag_onoff(), define a new force_tbl entry for the
ATA_LFLAG_NO_DEBOUNCE_DELAY link flag, thus allowing testing if an
adapter requires a link debounce delay or not.
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Reviewed-by: Hannes Reinecke <hare@suse.de>
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Introduce the macro definitions force_cbl(), force_spd_limit(),
force_xfer(), force_lflag(), force_horkage_on() and
force_horkage_onoff() to define with a more compact syntax the struct
ata_force_param entries in the force_tbl array defined in the function
ata_parse_force_one().
To reduce the indentation of the array declaration, force_tbl definition
is also moved out of the ata_parse_force_one() function. The entries are
also reordered to group them by type of the quirck that is applied.
Finally, fix a comment in ata_parse_force_param() incorrectly
referencing force_tbl instead of ata_force_tbl.
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Reviewed-by: Hannes Reinecke <hare@suse.de>
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Remove the unneeded comma after the last field of the array entries.
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Reviewed-by: Hannes Reinecke <hare@suse.de>
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and "isn't" with "is not". The former fixes the typo while the latter
just uses the same formal language.
Signed-off-by: Diego Viola <diego.viola@gmail.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
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