During system resume, ata_port_pm_resume() triggers ata EH to
1) Resume the controller
2) Reset and rescan the ports
3) Revalidate devices
This EH execution is started asynchronously from ata_port_pm_resume(),
which means that when sd_resume() is executed, none or only part of the
above processing may have been executed. However, sd_resume() issues a
START STOP UNIT to wake up the drive from sleep mode. This command is
translated to ATA with ata_scsi_start_stop_xlat() and issued to the
device. However, depending on the state of execution of the EH process
and revalidation triggerred by ata_port_pm_resume(), two things may
happen:
1) The START STOP UNIT fails if it is received before the controller has
been reenabled at the beginning of the EH execution. This is visible
with error messages like:
ata10.00: device reported invalid CHS sector 0
sd 9:0:0:0: [sdc] Start/Stop Unit failed: Result: hostbyte=DID_OK driverbyte=DRIVER_OK
sd 9:0:0:0: [sdc] Sense Key : Illegal Request [current]
sd 9:0:0:0: [sdc] Add. Sense: Unaligned write command
sd 9:0:0:0: PM: dpm_run_callback(): scsi_bus_resume+0x0/0x90 returns -5
sd 9:0:0:0: PM: failed to resume async: error -5
2) The START STOP UNIT command is received while the EH process is
on-going, which mean that it is stopped and must wait for its
completion, at which point the command is rather useless as the drive
is already fully spun up already. This case results also in a
significant delay in sd_resume() which is observable by users as
the entire system resume completion is delayed.
Given that ATA devices will be woken up by libata activity on resume,
sd_resume() has no need to issue a START STOP UNIT command, which solves
the above mentioned problems. Do not issue this command by introducing
the new scsi_device flag no_start_on_resume and setting this flag to 1
in ata_scsi_dev_config(). sd_resume() is modified to issue a START STOP
UNIT command only if this flag is not set.
Reported-by: Paul Ausbeck <paula@soe.ucsc.edu>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=215880
Fixes: a19a93e4c6 ("scsi: core: pm: Rely on the device driver core for async power management")
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Tested-by: Tanner Watkins <dalzot@gmail.com>
Tested-by: Paul Ausbeck <paula@soe.ucsc.edu>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
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: 18bd7718b5 ("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>
The global function triggers a warning because of the missing prototype
drivers/ata/pata_ns87415.c:263:6: warning: no previous prototype for 'ns87560_tf_read' [-Wmissing-prototypes]
263 | void ns87560_tf_read(struct ata_port *ap, struct ata_taskfile *tf)
There are no other references to this, so just make it static.
Fixes: c4b5b7b6c4 ("pata_ns87415: Initial cut at 87415/87560 IDE support")
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
The variable 'rv' is set to 0 after calling of_property_read_reg(), so
it cannot be used as an error code. Change to using correct error codes
in the error path.
Fixes: d0b2461678 ("ata: Use of_property_read_reg() to parse "reg"")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
It is possible for dma_request_chan() to return EPROBE_DEFER, which
means acdev->host->dev is not ready yet. At this point dev_err() will
have no output. Use dev_err_probe() instead.
Signed-off-by: Minjie Du <duminjie@vivo.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Most of the protocol modules for the pata_parport driver are missing a
module description, causing warnings such as:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/ata/pata_parport/aten.o
when compiling with W=1. Add the missing MODULE_DESCRIPTION()
definitions to avoid these warnings. While at it, also add the missing
MODULE_AUTHOR() definitions.
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Here are a small set of changes for 6.5-rc1 for some driver core
changes. Included in here are:
- device property cleanups to make it easier to write "agnostic"
drivers when regards to the firmware layer underneath them (DT vs.
ACPI)
- debugfs documentation updates
- devres additions
- sysfs documentation and changes to handle empty directory creation
logic better
- tiny kernfs optimizations
- other tiny changes
All of these have been in linux-next for a while with no reported
problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here are a small set of changes for 6.5-rc1 for some driver core
changes. Included in here are:
- device property cleanups to make it easier to write "agnostic"
drivers when regards to the firmware layer underneath them (DT vs.
ACPI)
- debugfs documentation updates
- devres additions
- sysfs documentation and changes to handle empty directory creation
logic better
- tiny kernfs optimizations
- other tiny changes
All of these have been in linux-next for a while with no reported
problems"
* tag 'driver-core-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
sysfs: Skip empty folders creation
sysfs: Improve readability by following the kernel coding style
drivers: fwnode: fix fwnode_irq_get[_byname]()
ata: ahci_platform: Make code agnostic to OF/ACPI
device property: Implement device_is_compatible()
ACPI: Move ACPI_DEVICE_CLASS() to mod_devicetable.h
base/node: Use 'property' to identify an access parameter
driver core: device.h: add some missing kerneldocs
kernfs: fix missing kernfs_idr_lock to remove an ID from the IDR
isa: Remove unnecessary checks
MAINTAINERS: add entry for auxiliary bus
debugfs: Correct the 'debugfs_create_str' docs
serial: qcom_geni: Comment use of devm_krealloc rather than devm_krealloc_array
iio: adc: Use devm_krealloc_array
hwmon: pmbus: Use devm_krealloc_array
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 and block level Persistent Reservation Operations, which touches
block, nvme, target and dm (both of which are added with merge commits
containing a cover letter explaining what's going on).
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
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
...
- 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).
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Merge tag 'ata-6.5-rc1' of 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
...
asm/octeon/octeon.h already includes asm/bitfield.h, so there is no need
to include this latter file in ahci_octeon.c as the code does not
directly use the __BITFIELD_FIELD macro defined in it.
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
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: a19a93e4c6 ("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>
With the help of a new device_is_compatible() make
the driver code agnostic to the OF/ACPI. This makes
it neater. As a side effect the header inclusions is
corrected (seems mod_devicetable.h was implicitly
included).
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Message-ID: <20230609154900.43024-4-andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Include the header file linux/of_address.h to avoid compilation errors
triggered by of_property_read_reg() being undeclared.
Fixes: d0b2461678 ("ata: Use of_property_read_reg() to parse "reg"")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202306141702.ZaO9V2lk-lkp@intel.com/
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Fix multi-line comment style in ahci_reset_controller() and change the
code to return early if ahci_skip_host_reset is true, reducing
indentation by one level for the bulk of the function code.
No functional changes.
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Niklas Cassel <niklas.cassel@wdc.com>
Use the recently added of_property_read_reg() helper to get the
untranslated "reg" address value.
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
In ata_scsi_dev_config(), instead of hard-coding the test to check if
an ATA device supports NCQ by looking at the ATA_DFLAG_NCQ flag, use
ata_ncq_supported().
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
In ata_eh_speed_down(), instead of hard-coding the test on the device
flags to detect if NCQ is supported and enabled, use ata_ncq_enabled().
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: John Garry <john.g.garry@oracle.com>
ata_change_queue_depth() implements different behaviors for ATA devices
managed by libsas than for those managed by libata directly.
Specifically, if a user attempts to set a device queue depth to a value
larger than 32 (ATA_MAX_QUEUE), the queue depth is capped to the maximum
and set to 32 for libsas managed devices whereas for libata managed
devices, the queue depth is unchanged and an error returned to the user.
This is due to the fact that for libsas devices, sdev->host->can_queue
may indicate the host (HBA) maximum number of commands that can be
queued rather than the device maximum queue depth.
Change ata_change_queue_depth() to provide a consistent behavior for all
devices by changing the queue depth capping code to a check that the
user provided value does not exceed the device maximum queue depth.
This check is moved before the code clearing or setting the
ATA_DFLAG_NCQ_OFF flag to ensure that this flag is not modified when an
invlaid queue depth is provided.
While at it, two other small improvements are added:
1) Use ata_ncq_supported() instead of ata_ncq_enabled() and clear the
ATA_DFLAG_NCQ_OFF flag only and only if needed.
2) If the user provided queue depth is equal to the current queue depth,
do not return an error as that is useless.
Overall, the behavior of ata_change_queue_depth() for libata managed
devices is unchanged. The behavior with libsas managed devices becomes
consistent with libata managed devices.
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Commit 141f3d6256 ("ata: libata-sata: Fix device queue depth control")
added a struct ata_device argument to ata_change_queue_depth() to
address problems with changing the queue depth of ATA devices managed
through libsas. This was due to problems with ata_scsi_find_dev() which
are now fixed with commit 7f875850f2 ("ata: libata-scsi: Use correct
device no in ata_find_dev()").
Undo some of the changes of commit 141f3d6256: remove the added struct
ata_device aregument and use again ata_scsi_find_dev() to find the
target ATA device structure. While doing this, also make sure that
ata_scsi_find_dev() is called with ap->lock held, as it should.
libsas and libata call sites of ata_change_queue_depth() are updated to
match the modified function arguments.
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Jason Yan <yanaijie@huawei.com>
Reviewed-by: John Garry <john.g.garry@oracle.com>
While the function documentation for ata_eh_qc_retry() is clear,
from simply reading the single function that calls ata_eh_qc_retry(),
it is not clear that ata_eh_qc_retry() might not retry the command.
Add a comment in the single function that calls ata_eh_qc_retry() to
clarify the behavior.
[Damien] Added curly braces to "if () else" with multi-line comment.
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Add missing description of the spg argument of ata_msense_control().
Fixes: df60f9c645 ("scsi: ata: libata: Add ATA feature control sub-page translation")
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Link: https://lore.kernel.org/r/20230523074701.293502-1-dlemoal@kernel.org
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Niklas Cassel <niklas.cassel@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
For devices not attached to a port multiplier and managed directly by
libata, the device number passed to ata_find_dev() must always be lower
than the maximum number of devices returned by ata_link_max_devices().
That is 1 for SATA devices or 2 for an IDE link with master+slave
devices. This device number is the SCSI device ID which matches these
constraints as the IDs are generated per port and so never exceed the
maximum number of devices for the link being used.
However, for libsas managed devices, SCSI device IDs are assigned per
struct scsi_host, leading to device IDs for SATA devices that can be
well in excess of libata per-link maximum number of devices. This
results in ata_find_dev() to always return NULL for libsas managed
devices except for the first device of the target scsi_host with ID
(device number) equal to 0. This issue is visible by executing the
hdparm utility, which fails. E.g.:
hdparm -i /dev/sdX
/dev/sdX:
HDIO_GET_IDENTITY failed: No message of desired type
Fix this by rewriting ata_find_dev() to ignore the device number for
non-PMP attached devices with a link with at most 1 device, that is SATA
devices. For these, the device number 0 is always used to
return the correct pointer to the struct ata_device of the port link.
This change excludes IDE master/slave setups (maximum number of devices
per link is 2) and port-multiplier attached devices. Also, to be
consistant with the fact that SCSI device IDs and channel numbers used
as device numbers are both unsigned int, change the devno argument of
ata_find_dev() to unsigned int.
Reported-by: Xingui Yang <yangxingui@huawei.com>
Fixes: 41bda9c980 ("libata-link: update hotplug to handle PMP links")
Cc: stable@vger.kernel.org
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Jason Yan <yanaijie@huawei.com>
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>
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>
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>
Modify ata_scsiop_mode_sense() and ata_msense_control() to support mode
sense access to the T2A and T2B sub-pages of the control mode page.
ata_msense_control() is modified to support sub-pages. The T2A sub-page is
generated using the read descriptors of the command duration limits log
page 18h. The T2B sub-page is generated using the write descriptors of the
same log page. With the addition of these sub-pages, getting all sub-pages
of the control mode page is also supported by increasing the value of
ATA_SCSI_RBUF_SIZE from 576B up to 2048B to ensure that all sub-pages fit
in the fill buffer.
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/20230511011356.227789-17-nks@flawful.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
For a scsi MAINTENANCE_IN/MI_REPORT_SUPPORTED_OPERATION_CODES operation,
add the translation of the rwcdlp and cdlp bits for the READ 16 and WRITE
16 commands. If the ATA device does not support command duration limits,
these bits are always 0. If the ATA device supports command duration
limits, the rwcdlp bit is set to 1 for READ 16 and WRITE 16 and the cdlp
bits are set to 0x1 for READ 16 and 0x2 for WRITE 16. These correspond to
the T2A mode page containing the read descriptors and to the T2B mode page
containing the write descriptors, as defined in SAT-5.
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/20230511011356.227789-16-nks@flawful.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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>
Currently, ata_eh_request_sense() unconditionally sets the scsicmd->result
to SAM_STAT_CHECK_CONDITION.
For Command Duration Limits policy 0xD:
The device shall complete the command without error (SAM_STAT_GOOD) with
the additional sense code set to DATA CURRENTLY UNAVAILABLE.
It is perfectly fine to have sense data for a command that returned
completion without error.
In order to support for CDL policy 0xD, we have to remove this assumption
that having sense data means that the command failed
(SAM_STAT_CHECK_CONDITION).
Change ata_eh_request_sense() to not set SAM_STAT_CHECK_CONDITION, and
instead move the setting of SAM_STAT_CHECK_CONDITION to the single caller
that wants SAM_STAT_CHECK_CONDITION set, that way ata_eh_request_sense()
can be reused in a follow-up patch that adds support for CDL policy 0xD.
The only caller of ata_eh_request_sense() is protected by: if (!(qc->flags
& ATA_QCFLAG_SENSE_VALID)), so we can remove this duplicated check from
ata_eh_request_sense() itself.
Additionally, ata_eh_request_sense() is only called from
ata_eh_analyze_tf(), which is only called when iteratating the QCs using
ata_qc_for_each_raw(), which does not include the internal tag, so cmd can
never be NULL (all non-internal commands have qc->scsicmd set), so remove
the !cmd check as well.
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Link: https://lore.kernel.org/r/20230511011356.227789-14-nks@flawful.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
There is no need to check if !cmd as this can only happen for ATA internal
commands which uses the ATA internal tag (32).
Most users of ata_scsi_set_sense() are from _xlat functions that translate
a scsicmd to an ATA command. These obviously have a qc->scsicmd.
ata_scsi_qc_complete() can also call ata_scsi_set_sense() via
ata_gen_passthru_sense() / ata_gen_ata_sense(), called via
ata_scsi_qc_complete(). This callback is only called for translated
commands, so it also has a qc->scsicmd.
ata_eh_analyze_ncq_error(): the NCQ error log can only contain a 0-31
value, so it will never be able to get the ATA internal tag (32).
ata_eh_request_sense(): only called by ata_eh_analyze_tf(), which is only
called when iteratating the QCs using ata_qc_for_each_raw(), which does not
include the internal tag.
Since there is no existing call site where cmd can be NULL, remove the !cmd
check from ata_scsi_set_sense() and ata_scsi_set_sense_information().
Suggested-by: Christoph Hellwig <hch@lst.de>
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/20230511011356.227789-13-nks@flawful.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Fix the header, indentation and coding style in the on26 pata parport
protocol module to suppress warnings from smatch and other static code
analyzers.
No functional changes.
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Fix the header, indentation and coding style in the on20 pata parport
protocol module to suppress warnings from smatch and other static code
analyzers.
No functional changes.
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Fix the header, indentation and coding style in the ktti pata parport
protocol module to suppress warnings from smatch and other static code
analyzers.
No functional changes.
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Fix the header, indentation and coding style in the kbic pata parport
protocol module to suppress warnings from smatch and other static code
analyzers.
No functional changes.
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Fix the header, indentation and coding style in the friq pata parport
protocol module to suppress warnings from smatch and other static code
analyzers.
No functional changes.
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Fix the header, indentation and coding style in the fit3 pata parport
protocol module to suppress warnings from smatch and other static code
analyzers.
No functional changes.
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Fix the header, indentation and coding style in the fit2 pata parport
protocol module to suppress warnings from smatch and other static code
analyzers.
No functional changes.
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Fix the header, indentation and coding style in the epia pata parport
protocol module to suppress warnings from smatch and other static code
analyzers.
No functional changes.
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Fix the header, indentation and coding style in the epat pata parport
protocol module to suppress warnings from smatch and other static code
analyzers.
No functional changes.
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Fix the header, indentation and coding style in the dstr pata parport
protocol module to suppress warnings from smatch and other static code
analyzers.
No functional changes.
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Fix the header, indentation and coding style in the comm pata parport
protocol module to suppress warnings from smatch and other static code
analyzers.
No functional changes.
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Fix the header, indentation and coding style in the bpck6 pata parport
protocol module to suppress warnings from smatch and other static code
analyzers.
No functional changes.
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Fix the header, indentation and coding style in the aten pata parport
protocol module to suppress warnings from smatch and other static code
analyzers.
No functional changes.
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Fix the header, indentation and coding style in the frpw pata parport
protocol module to suppress smatch warnings such as:
drivers/ata/pata_parport/frpw.c:234 frpw_test_proto() warn: inconsistent indenting
No functional changes.
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/oe-kbuild-all/202305061212.EPgEMLXl-lkp@intel.com/
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Fix the header, indentation and coding style in the bpck pata parport
protocol module to suppress smatch warnings such as:
drivers/ata/pata_parport/bpck.c:66 bpck_read_regr() warn: inconsistent indenting
No functional changes.
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/oe-kbuild-all/202305021913.nCMzH5Zj-lkp@intel.com/
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
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>
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>
Here is the large set of driver core changes for 6.4-rc1.
Once again, a busy development cycle, with lots of changes happening in
the driver core in the quest to be able to move "struct bus" and "struct
class" into read-only memory, a task now complete with these changes.
This will make the future rust interactions with the driver core more
"provably correct" as well as providing more obvious lifetime rules for
all busses and classes in the kernel.
The changes required for this did touch many individual classes and
busses as many callbacks were changed to take const * parameters
instead. All of these changes have been submitted to the various
subsystem maintainers, giving them plenty of time to review, and most of
them actually did so.
Other than those changes, included in here are a small set of other
things:
- kobject logging improvements
- cacheinfo improvements and updates
- obligatory fw_devlink updates and fixes
- documentation updates
- device property cleanups and const * changes
- firwmare loader dependency fixes.
All of these have been in linux-next for a while with no reported
problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here is the large set of driver core changes for 6.4-rc1.
Once again, a busy development cycle, with lots of changes happening
in the driver core in the quest to be able to move "struct bus" and
"struct class" into read-only memory, a task now complete with these
changes.
This will make the future rust interactions with the driver core more
"provably correct" as well as providing more obvious lifetime rules
for all busses and classes in the kernel.
The changes required for this did touch many individual classes and
busses as many callbacks were changed to take const * parameters
instead. All of these changes have been submitted to the various
subsystem maintainers, giving them plenty of time to review, and most
of them actually did so.
Other than those changes, included in here are a small set of other
things:
- kobject logging improvements
- cacheinfo improvements and updates
- obligatory fw_devlink updates and fixes
- documentation updates
- device property cleanups and const * changes
- firwmare loader dependency fixes.
All of these have been in linux-next for a while with no reported
problems"
* tag 'driver-core-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (120 commits)
device property: make device_property functions take const device *
driver core: update comments in device_rename()
driver core: Don't require dynamic_debug for initcall_debug probe timing
firmware_loader: rework crypto dependencies
firmware_loader: Strip off \n from customized path
zram: fix up permission for the hot_add sysfs file
cacheinfo: Add use_arch[|_cache]_info field/function
arch_topology: Remove early cacheinfo error message if -ENOENT
cacheinfo: Check cache properties are present in DT
cacheinfo: Check sib_leaf in cache_leaves_are_shared()
cacheinfo: Allow early level detection when DT/ACPI info is missing/broken
cacheinfo: Add arm64 early level initializer implementation
cacheinfo: Add arch specific early level initializer
tty: make tty_class a static const structure
driver core: class: remove struct class_interface * from callbacks
driver core: class: mark the struct class in struct class_interface constant
driver core: class: make class_register() take a const *
driver core: class: mark class_release() as taking a const *
driver core: remove incorrect comment for device_create*
MIPS: vpe-cmp: remove module owner pointer from struct class usage.
...
Updates to the usual drivers (megaraid_sas, scsi_debug, lpfc, target,
mpi3mr, hisi_sas, arcmsr). The major core change is the
constification of the host templates (which touches everything) along
with other minor fixups and clean ups.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"Updates to the usual drivers (megaraid_sas, scsi_debug, lpfc, target,
mpi3mr, hisi_sas, arcmsr).
The major core change is the constification of the host templates
(which touches everything) along with other minor fixups and clean
ups"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (207 commits)
scsi: ufs: mcq: Use pointer arithmetic in ufshcd_send_command()
scsi: ufs: mcq: Annotate ufshcd_inc_sq_tail() appropriately
scsi: cxlflash: s/semahpore/semaphore/
scsi: lpfc: Silence an incorrect device output
scsi: mpi3mr: Use IRQ save variants of spinlock to protect chain frame allocation
scsi: scsi_debug: Fix missing error code in scsi_debug_init()
scsi: hisi_sas: Work around build failure in suspend function
scsi: lpfc: Fix ioremap issues in lpfc_sli4_pci_mem_setup()
scsi: mpt3sas: Fix an issue when driver is being removed
scsi: mpt3sas: Remove HBA BIOS version in the kernel log
scsi: target: core: Fix invalid memory access
scsi: scsi_debug: Drop sdebug_queue
scsi: scsi_debug: Only allow sdebug_max_queue be modified when no shosts
scsi: scsi_debug: Use scsi_host_busy() in delay_store() and ndelay_store()
scsi: scsi_debug: Use blk_mq_tagset_busy_iter() in stop_all_queued()
scsi: scsi_debug: Use blk_mq_tagset_busy_iter() in sdebug_blk_mq_poll()
scsi: scsi_debug: Dynamically allocate sdebug_queued_cmd
scsi: scsi_debug: Use scsi_block_requests() to block queues
scsi: scsi_debug: Protect block_unblock_all_queues() with mutex
scsi: scsi_debug: Change shost list lock to a mutex
...
* Many cleanups of the pata_parport driver and of its protocol modules,
from Ondrej.
* Remove unused code (ata_id_xxx() functions), from Sergey.
* Add Add UniPhier SATA controller DT bindings, from Kunihiko.
* Fix dependencies for the Freescale QorIQ AHCI SATA controller driver,
from Geert.
* DT property handling improvements, from Rob.
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Merge tag 'ata-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata
Pull ata updates from Damien Le Moal:
- Many cleanups of the pata_parport driver and of its protocol modules
(Ondrej)
- Remove unused code (ata_id_xxx() functions) (Sergey)
- Add Add UniPhier SATA controller DT bindings (Kunihiko)
- Fix dependencies for the Freescale QorIQ AHCI SATA controller driver
(Geert)
- DT property handling improvements (Rob)
* tag 'ata-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata: (57 commits)
ata: pata_parport-bpck6: Declare mode_map as static
ata: pata_parport-bpck6: Remove dependency on 64BIT
ata: pata_parport-bpck6: reduce indents in bpck6_open
ata: pata_parport-bpck6: delete ppc6lnx.c
ata: pata_parport-bpck6: move defines and mode_map to bpck6.c
ata: pata_parport-bpck6: move ppc6_wr_data_byte to bpck6.c and rename
ata: pata_parport-bpck6: move ppc6_rd_data_byte to bpck6.c and rename
ata: pata_parport-bpck6: move ppc6_send_cmd to bpck6.c and rename
ata: pata_parport-bpck6: move ppc6_deselect to bpck6.c and rename
ata: pata_parport-bpck6: merge ppc6_select into bpck6_open
ata: pata_parport-bpck6: move ppc6_open to bpck6.c and rename
ata: pata_parport-bpck6: move ppc6_wr_extout to bpck6.c and rename
ata: pata_parport-bpck6: move ppc6_wait_for_fifo to bpck6.c and rename
ata: pata_parport-bpck6: merge ppc6_wr_data_blk into bpck6_write_block
ata: pata_parport-bpck6: merge ppc6_rd_data_blk into bpck6_read_block
ata: pata_parport-bpck6: merge ppc6_wr_port16_blk into bpck6_write_block
ata: pata_parport-bpck6: merge ppc6_rd_port16_blk into bpck6_read_block
ata: pata_parport-bpck6: merge ppc6_wr_port into bpck6_write_regr
ata: pata_parport-bpck6: merge ppc6_rd_port into bpck6_read_regr
ata: pata_parport-bpck6: remove ppc6_close
...
