| Age | Commit message (Collapse) | Author | Files | Lines |
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trivial fix to spelling mistake in DEBUG2 debug message
Signed-off-by: Colin Ian King <[email protected]>
Acked-by: Manish Rangankar <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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This module specific flag can be made static as it does not need to be
in global scope.
Signed-off-by: Colin Ian King <[email protected]>
Acked-by: Charles Chiou <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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free_irq() expects the same device identity that was passed to
corresponding request_irq(), otherwise the IRQ is not freed.
Signed-off-by: Wei Yongjun <[email protected]>
Signed-off-by: Finn Thain <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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There were pci_alloc_consistent() failures on ARM64 platform. Use
dma_alloc_coherent() with GFP_KERNEL flag DMA memory allocations.
Signed-off-by: Mahesh Rajashekhara <[email protected]>
[hch: tweaked indentation, removed memsets]
Signed-off-by: Christoph Hellwig <[email protected]>
Acked-by: Dave Carroll <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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It could be just cmp 0xe instead of >>1 and cmp 0x7, with readable code.
Signed-off-by: Tomohiro Kusumi <[email protected]>
Reviewed-by: Subhash Jadavani <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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MASK_EE_STATUS added by 66ec6d59 was unused, but it seems to have been
defined to do this.
Signed-off-by: Tomohiro Kusumi <[email protected]>
Reviewed-by: Subhash Jadavani <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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Commit da244654c66e ("[SCSI] mac_esp: fix for quadras with two esp
chips") added mac_scsi_esp_intr() to handle the IRQ lines from a pair of
on-board ESP chips (a normal shared IRQ did not work).
Proper mutual exclusion was missing from that patch. This patch fixes
race conditions between comparison and assignment of esp_chips[]
pointers.
Signed-off-by: Finn Thain <[email protected]>
Reviewed-by: Michael Schmitz <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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These module parameter variables don't need global scope, make them
static
Signed-off-by: Colin Ian King <[email protected]>
Acked-by: Johannes Thumshirn <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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Resetting a zone write pointer is equivalent to discarding sectors:
after a reset, the zone sectors will contain zeros (or the format
pattern). So there is no need for mutual exclusion between a zone reset
and write. Similarly to discard, make it the responsability of the user
to properly synchronize between reset and write (as is done now for
discard and write).
Signed-off-by: Damien Le Moal <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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A value is assigned to the variable 'capacity' in sd_zbc_read_zones()
but that value is never used. Hence remove the variable 'capacity'.
[Damien: There is no need to initialize to 0 the variable 'ret'
in sd_zbc_read_zones()]
Signed-off-by: Bart Van Assche <[email protected]>
Signed-off-by: Damien Le Moal <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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Rename sd_zbc_setup_write_cmnd() to sd_zbc_write_lock_zone() to be clear
about what the function actually does. To be consistent, also rename
sd_zbc_cancel_write_cmnd() to sd_zbc_write_unlock_zone().
No functional change is introduced by this patch.
Signed-off-by: Damien Le Moal <[email protected]>
Reviewed-by: Bart Van Assche <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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Use get_unaligned_be32 and get_unaligned_be64 to obtain values from the
sense buffer instead of open coding the operations. Also change the
function return value to a bool and fix the function signature
declaration to remove spaces triggering checkpatch warnings.
No functional change is introduced by this patch.
Signed-off-by: Damien Le Moal <[email protected]>
Reviewed-by: Bart Van Assche <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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Use a switch for the sense key, and remove two pointless variables that
are only used once.
[mkp: Added UNMAP comment and removed good_bytes based on comment from
Damien]
Signed-off-by: Christoph Hellwig <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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Re-shuffle the code to be more efficient by not initializing variables
upfront (i.e. do it only when necessary). Also replace the do_div calls
with calls to sectors_to_logical().
No functional change is introduced by this patch.
[mkp: bytes_to_logical()]
Signed-off-by: Damien Le Moal <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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Fix argument names and description of function documentation comments.
No functional change is introduced by this patch.
[mkp: verbify]
Signed-off-by: Damien Le Moal <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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Due to relaxed ordering requirements on multiple architectures, drivers
are required to use wmb/rmb/mb combinations when they need to guarantee
observability between the memory and the HW.
The mpt3sas driver is already using wmb() for this purpose. However, it
issues a writel following wmb(). writel() function on arm/arm64
arhictectures have an embedded wmb() call inside.
This results in unnecessary performance loss and code duplication.
writel already guarantees ordering for both cpu and bus. we don't need
additional wmb()
Signed-off-by: Sinan Kaya <[email protected]>
Acked-by: Sreekanth Reddy <[email protected]>
Reviewed-by: Brian King <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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Commit c5ce0abeb628 ("scsi: sas: move scsi_remove_host call...") moved
the call to scsi_remove_host() into sas_remove_host(), but forgot to
modify the mpt drivers.
Fixes: c5ce0abeb628 ("scsi: sas: move scsi_remove_host call into sas_remove_host")
Signed-off-by: Hannes Reinecke <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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Once the reserved page array is unused we can reset the 'res_in_use'
state; here we can do a lazy update without holding the mutex as we only
need to check against concurrent access, not concurrent release.
[mkp: checkpatch]
Fixes: 1bc0eb044615 ("scsi: sg: protect accesses to 'reserved' page array")
Signed-off-by: Hannes Reinecke <[email protected]>
Reviewed-by: Johannes Thumshirn <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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As Christoph Hellwig noted, SCSI commands that transfer data always have
a SG entry. The patch removes dead code in mvumi_make_sgl(),
mvumi_complete_cmd() and mvumi_timed_out() that handle zero
scsi_sg_count(scmd) case.
Also the patch adds pci_unmap_sg() on failure path in mvumi_make_sgl().
Signed-off-by: Alexey Khoroshilov <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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trivial fix to spelling mistake
Signed-off-by: Colin Ian King <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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As pointed out by Al Viro for my previous series, the driver has no need
to call access_ok() and __copy_from_user()/__copy_to_user(). Changing
it to regular copy_from_user()/copy_to_user() simplifies the code without
any real downsides, making it less error-prone at best.
This patch by itself also addresses the warning about the access_ok()
macro on MIPS, but both fixes improve the code, so ideally we apply
them both.
Signed-off-by: Arnd Bergmann <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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pmcraid_minor is only used in this one file and should be 'static' as suggested
by sparse:
drivers/scsi/pmcraid.c:80:1: warning: symbol 'pmcraid_minor' was not declared. Should it be static?
In Linux coding style, a literal '0' integer should not be used to represent
a NULL pointer:
drivers/scsi/pmcraid.c:348:29: warning: Using plain integer as NULL pointer
drivers/scsi/pmcraid.c:4824:49: warning: Using plain integer as NULL pointer
Signed-off-by: Arnd Bergmann <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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The use of le32_to_cpu() etc in this driver looks completely arbitrary.
It may have made sense at some point, but it is not applied consistently,
so this driver presumably won't work on big-endian kernel builds.
Unfortunately it's unclear whether the type names or the calls to
le32_to_cpu() are the correct ones. I'm taking educated guesses here
and assume that most of the __le32 and __le16 annotations are correct,
adding the conversion helpers whereever we access those fields.
The exceptions are the 'fw_version' field that is always accessed as
big-endian, so I'm changing the type here, and the 'hrrq' values that
are accessed as little-endian, so I'm changing those the other way.
None of these changes should have any effect on little-endian
architectures like x86, but it addresses the sparse warnings.
Signed-off-by: Arnd Bergmann <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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kernelci.org reports a new compile warning for old code in the pmcraid
driver:
arch/mips/include/asm/uaccess.h:138:21: warning: passing argument 1 of '__access_ok' makes pointer from integer without a cast [-Wint-conversion]
The warning got introduced by a cleanup to the access_ok() helper that
requires the argument to be a pointer, where the old version silently
accepts 'unsigned long' arguments as it still does on most other
architectures.
The new behavior in MIPS however seems absolutely sensible, and so far I
could only find one other file with the same issue, so the best solution
seems to be to clean up the pmcraid driver.
This makes the driver consistently use 'void __iomem *' pointers for
passing around the address of the user space ioctl arguments, which gets
rid of the kernelci warning as well as several sparse warnings.
Fixes: f0a955f4eeec ("mips: sanitize __access_ok()")
Cc: Alexander Viro <[email protected]>
Signed-off-by: Arnd Bergmann <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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sparse found a bug that has always been present since the driver was
merged:
drivers/scsi/pmcraid.c:2353:12: warning: context imbalance in 'pmcraid_reset_reload' - different lock contexts for basic block
Fix this by using a common unlock goto label, and also reduce the
indentation level in the function.
Signed-off-by: Christoph Hellwig <[email protected]>
Reported-by: Arnd Bergmann <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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Move scsi_remove_host call into sas_remove_host and remove it from SAS
HBA drivers, so we don't mess up the ordering. This solves an issue with
double deleting sysfs entries that was introduced by the change of sysfs
behaviour from commit bcdde7e221a8 ("sysfs: make __sysfs_remove_dir()
recursive").
[mkp: addressed checkpatch complaints]
Signed-off-by: Johannes Thumshirn <[email protected]>
Suggested-by: Christoph Hellwig <[email protected]>
Cc: Hannes Reinecke <[email protected]>
Cc: James Bottomley <[email protected]>
Cc: Jinpu Wang <[email protected]>
Cc: John Garry <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Reviewed-by: Jinpu Wang <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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Trivial fix to spelling mistake, adatper_reset_req should be
adapter_reset_req. Also break up very long seq_printf statement into
multiple lines.
Signed-off-by: Colin Ian King <[email protected]>
Acked-by: Khalid Aziz <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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Prepare to mark sensitive kernel structures for randomization by making
sure they're using designated initializers. This also initializes the
array members using the enum used to look up __port_action entries.
Signed-off-by: Kees Cook <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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The vendor/device and subvendor/subdevice arguments to the function
prototype ahc_9005_subdevinfo_valid are in the wrong order and need to
be swapped to fix this. Detected with PVS-Studio studio.
Signed-off-by: Colin Ian King <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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Just call the functions directly and remove a giant pile of boilerplate
code.
Signed-off-by: Christoph Hellwig <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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Prepare to mark sensitive kernel structures for randomization by making
sure they're using designated initializers. These were identified during
allyesconfig builds of x86, arm, and arm64, with most initializer fixes
extracted from grsecurity.
For these cases, terminate the list with { }, which will be zero-filled,
instead of undesignated NULLs.
Signed-off-by: Kees Cook <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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Included in the current storvsc driver for Hyper-V is the ability to
access luns on an FC fabric via a virtualized fiber channel adapter
exposed by the Hyper-V host. The driver also attaches to the FC
transport to allow host and port names to be published under
/sys/class/fc_host/hostX. Current customer tools running on the VM
require that these names be available in the well known standard
location under fc_host/hostX.
This patch stubs in an rport per fc_host and sets its rport role as
FC_PORT_ROLE_FCP_DUMMY_INITIATOR to indicate to the fc_transport that it
is a pseudo rport in order to scan the scsi stack via echo "- - -" >
/sys/class/scsi_host/hostX/scan.
Signed-off-by: Cathy Avery <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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This patch allows scsi drivers that expose virturalized fibre channel
devices but that do not expose rports to successfully rescan the scsi
bus via echo "- - -" > /sys/class/scsi_host/hostX/scan. Drivers can
create a pseudo rport and indicate FC_PORT_ROLE_FCP_DUMMY_INITIATOR as
the rport's role in fc_rport_identifiers. This insures that a valid
scsi_target_id is assigned to the newly created rport and it can meet
the requirements of fc_user_scan_tgt calling scsi_scan_target.
Signed-off-by: Cathy Avery <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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Passed through SCSI targets may have transfer limits which come from the
host SCSI controller or something on the host side other than the target
itself.
To make this work properly, the hypervisor can adjust the target's VPD
information to advertise these limits. But for that to work, the guest
has to look at the VPD pages, which we won't do by default if it is an
SPC-2 device, even if it does actually support it.
This adds a workaround to address this, forcing devices attached to a
virtio-scsi controller to always check the VPD pages. This is modelled
on a similar workaround for the storvsc (Hyper-V) SCSI controller,
although that exists for slightly different reasons.
A specific case which causes this is a volume from IBM's IPR RAID
controller (which presents as an SPC-2 device, although it does support
VPD) passed through with qemu's 'scsi-block' device.
[mkp: fixed typo]
Signed-off-by: David Gibson <[email protected]>
Acked-by: Paolo Bonzini <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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This patch fixes a potential buffer overflow in lpfc_nvme_info_show().
Signed-off-by: Maurizio Lombardi <[email protected]>
Reviewed-by: Ewan D. Milne <[email protected]>
Acked-by: James Smart <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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Signed-off-by: Varun Prakash <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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The check for an unsigned long being less than zero is always false so
it is a redundant check and can be removed.
Detected by static analysis with by PVS-Studio
Signed-off-by: Colin Ian King <[email protected]>
Reviewed-by: Tyrel Datwyler <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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mempool_alloc() cannot fail when passed GFP_NOIO or any other gfp
setting that is permitted to sleep. So remove this pointless code.
Signed-off-by: NeilBrown <[email protected]>
Acked-by: Tyrel Datwyler <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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storvsc_on_channel_callback is a void function and the return
statement at the end is not useful.
Found with checkpatch.
Signed-off-by: Miguel Bernal Marin <[email protected]>
Reviewed-by: K. Y. Srinivasan <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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Use kcalloc for allocating an array instead of kzalloc with multiply,
kcalloc is the preferred API.
Found with checkpatch.
Signed-off-by: Miguel Bernal Marin <[email protected]>
Reviewed-by: K. Y. Srinivasan <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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As an enhancement to distribute requests to multiple hardware queues, add the
infrastructure to hash a SCSI command into a particular hardware queue.
Support the following scenarios when deriving which queue to use: single
queue, tagging when SCSI-MQ enabled, and simple hash via CPU ID when SCSI-MQ
is disabled. Rather than altering the existing send API, the derived hardware
queue is stored in the AFU command where it can be used for sending a command
to the chosen hardware queue.
Signed-off-by: Matthew R. Ochs <[email protected]>
Signed-off-by: Uma Krishnan <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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As staging for supporting multiple hardware queues, add an attribute to show
and set the current number of hardware queues for the host. Support specifying
a hard limit or a CPU affinitized value. This will allow the number of
hardware queues to be tuned by a system administrator.
Signed-off-by: Matthew R. Ochs <[email protected]>
Signed-off-by: Uma Krishnan <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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Introduce multiple hardware queues to improve legacy I/O path performance.
Each hardware queue is comprised of a master context and associated I/O
resources. The hardware queues are initially implemented as a static array
embedded in the AFU. This will be transitioned to a dynamic allocation in a
later series to improve the memory footprint of the driver.
Signed-off-by: Uma Krishnan <[email protected]>
Acked-by: Matthew R. Ochs <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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The method used to decode asynchronous interrupts involves unnecessary loops
to match up bits that are set with corresponding entries in the asynchronous
interrupt information table. This algorithm is wasteful and does not scale
well as new status bits are supported.
As an improvement, use the for_each_set_bit() service to iterate over the
asynchronous status bits and refactor the information table such that it can
be indexed by bit position.
Signed-off-by: Matthew R. Ochs <[email protected]>
Signed-off-by: Uma Krishnan <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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As a general cleanup, address all reasonable checkpatch warnings and
errors. These include enforcement of comment styles and including named
identifiers in function prototypes.
Signed-off-by: Matthew R. Ochs <[email protected]>
Signed-off-by: Uma Krishnan <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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Validation statements to enforce assumptions about specific defines are not
being evaluated by the compiler due to the fact that they reside in a routine
that is not used. To activate them, call the routine as part of module
initialization. As an additional, related cleanup, remove the now-defunct
CXLFLASH_NUM_CMDS.
Signed-off-by: Matthew R. Ochs <[email protected]>
Signed-off-by: Uma Krishnan <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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Devices supported by the cxlflash driver are fully coherent and do not require
a bus address mapping. Avoid unnecessary path length by using the virtual
address and length already present in the scatter-gather entry.
Signed-off-by: Matthew R. Ochs <[email protected]>
Signed-off-by: Uma Krishnan <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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An EEH during probe can lead to a crash as the recovery thread races with the
probe thread. To avoid this issue, introduce new states to fence out EEH
recovery until probe has completed. Also ensure the reset wait queue is
flushed during device removal to avoid orphaned threads.
Signed-off-by: Matthew R. Ochs <[email protected]>
Signed-off-by: Uma Krishnan <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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Update the driver to allow for future cards with 4 ports.
Signed-off-by: Matthew R. Ochs <[email protected]>
Signed-off-by: Uma Krishnan <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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Update the SISlite header to support 4 ports as outlined in the SISlite
specification. Address fallout from structure renames and refreshed
organization throughout the driver. Determine the number of ports supported by
a card from the global port selection mask register reset value.
Signed-off-by: Matthew R. Ochs <[email protected]>
Signed-off-by: Uma Krishnan <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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