Better initialization of linked list heads.
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Display the RAID level via sysfs
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
- make all references to RAID bypass consistent throughout driver.
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Improved formatting of information displayed when devices
are added/removed from the system.
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Increase the timeout on admin commands from 3 seconds to 60
seconds and added a check for controller crash in the loop
where the driver polls for admin command completion.
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
enhance mapping of RAID path errors to Linux SCSI host
error codes.
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
- Improve controller branding support.
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
improve support for taking controller offline.
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
- Improve handling of offline devices.
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
set the internal flag that causes I/O to be sent down the
RAID path when the AIO path is disabled
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
add support for actions to take when controller goes offline.
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
make the queue depth for LVs the same as the maximum
I/Os supported by the controller
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
constrain resource usage during kdump to avoid kdump failures
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
change return value for controller offline to be consistent
with the rest of the driver.
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
add support for PTRAID devices
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
- improve some error messages.
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
- remove debug code that is no longer necessary.
- Some WARN_ON checks were removed because the driver continues
to function when the conditions are met.
- remove a MACRO that is no longer used.
- remove unnecessary multi-line statements.
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
correct the BMIC Identify Physical Device structure
- missing 2 fields
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
eliminate redundant error message during initialization
if the controller has crashed.
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
make all variable names for pointers to struct pci_dev consistent
throughout the driver.
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Add check for controller lockup during waits for synchronous
controller commands.
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
add workaround for BDMA hardware bug that can cause
hw to read up to 12 SGL elements (192 bytes) beyond the
last element in the list. This fix avoids IOMMU violations
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
check for controller lockups
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
add support for ACPI S3 (suspend) and S4 (hibernate)
system power states.
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
- Block all I/O targeted at LUN reset device.
- Wait until all I/O targeted at LUN reset device has been
consumed by the controller.
- Issue LUN reset request.
- Wait until all outstanding I/Os and LUN reset completion
have been received by the host.
- Return to OS results of LUN reset request.
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Only register for controller events that driver supports
cleanup event handling.
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
put in SIS mode during initialization.
support kexec/kdump
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
tell smartpqi controller to generate a checkpoint for rare lockup
conditions.
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
add support for setting PCIe completion timeout.
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
minor cleanup of interrupt initialization and tear-down.
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
correct a problem caused by holding a spinlock during device deletion.
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Reviewed-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
- simplify the driver
- there are a lot of quirky racy conditions not handled
- causes more aborts/resets when the number of commands to be aborted is
large, such as in multi-path fail-overs.
- has been turned off in our internal driver since 8/31/2015
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Reviewed-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
- Block I/O requests with 0 length transfers which go down the ioaccel
path. This causes lockup issues down in the basecode.
- These issues have been fixed, but there are customers who are
experiencing the issues when running older firmware.
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Reviewed-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
create new worker thread to monitor controller events
- both the rescan and event monitor workers can cause a rescan to occur
however for multipath we have found that we need to respond faster
than the normal scheduled rescan interval for path fail-overs.
- getting controller events only involves reading a register, but the
rescan worker can obtain an updated LUN list when there is a PTRAID
device present.
- move common code to a separate function.
advantages:
- detect controller events more frequently.
- leave rescan thread interval at 30 seconds.
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Reviewed-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
- queue depth assignment not in correct place, had no effect.
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Reviewed-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
- mark device state sooner.
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Reviewed-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
- call scsi_done when the command completes.
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Reviewed-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
- schedule another scan.
- mark current scan as completed.
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Reviewed-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Prevent enclosure resets.
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Reviewed-by: Scott Teel <scott.tell@microsemi.com>
Reviewed-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Use the return from TUR as a check for the device state.
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Reviewed-by: Scott Teel <scott.tell@microsemi.com>
Reviewed-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
external shelves do not support BMICs.
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Reviewed-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
- align with latest spec.
- added __attribute((aligned(512)))
Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Reviewed-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Update the driver version to 50834
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: David Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Remove reference to Series-9 HBA and created arc ctrl check function.
Signed-off-by: Prasad B Munirathnam <prasad.munirathnam@microsemi.com>
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: David Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Added info and error messages in controller reset function to log
information about the status of the IOP/SOFT reset.
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: David Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Make sure that IOP and SOFT reset are enabled for both for both arc and
hba1000 controllers.
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: David Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Made sure that ioctl commands return in case of a controller reset.
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: Dave Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The command thread checks the ctrl health periodically before sending
updates to the controller. The function that it uses is aac_check_health
which does more than get the health status.
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: David Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Removed switch case and replaced with if mask checks. Moved KERNEL_PANIC
check to when bled is less than 0.
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: David Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Now the driver issues a soft reset and waits for the controller to be up
and running by periodically checking on the status of the controller
health registers. Also prevents ARC adapters from issuing soft reset if
IOP resets failed.
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: David Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Added function that waits with a timeout for the ctrl to be up and running
after triggering an IOP reset. Also removed 30 sec sleep as it is not
needed.
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: David Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reworked IOP reset to remove unneeded variable and created a helper
function to notify fw of an imminent IOP reset.
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: David Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The driver can now trigger IOP reset with a single reset mask. Removed
code that retrieves a reset_mask from the firmware.
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: David Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Log the status of the controller before issuing a reset.
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: David Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Log the location of the scsi cmds before triggering a reset. This
information is useful for debugging.
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: David Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Change the completion wait time for the fibs in the reset and abort
callback from 2 minutes to 15 seconds.
2 minutes is too long for waiting for completion.
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: David Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Check health does not need to reset the ctrl but just return the
controller health status.
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: David Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The default queue depth for non NATIVE RAW disks is calculated from the
number of fibs and number of disks or a max of 256. This causes poor disk
IO performance.
The fix is to set default qd based on the type of disks
(SATA -32 and SAS -64)
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: David Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The qd for ARC Native disks is calculated by dividing the max IO 1024
by the number of disks or 256 which ever is lower. This causes poor
disk IO performance.
The fix is set the qd based on the type of disk (SAS - 64 and SATA -
32).
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: David Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The driver changed the DMA consistent map after consistent memory was
allocated, this invalidated the IOMMU identity mapping. The fix was to
make sure that we set the DMA consistent mask setting once depending on
the controller card.
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: Dave Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The raw srb commands do not requires memory that in the ZONE_DMA memory
space. For 32bit srb commands use GFP_DMA32 to limit the memory to 32bit
memory range (4GB).
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: Dave Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This is a set of user visible fixes (excepting one format string
change). Four of the qla2xxx fixes only affect the firmware dump
path, but it's still important to the enterprise. The rest are
various NULL pointer crash conditions or outright driver hangs.
Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is a set of user visible fixes (excepting one format string
change).
Four of the qla2xxx fixes only affect the firmware dump path, but it's
still important to the enterprise. The rest are various NULL pointer
crash conditions or outright driver hangs"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: cxgb4i: libcxgbi: in error case RST tcp conn
scsi: scsi_debug: Avoid PI being disabled when TPGS is enabled
scsi: qla2xxx: Fix extraneous ref on sp's after adapter break
scsi: lpfc: prevent potential null pointer dereference
scsi: lpfc: Avoid NULL pointer dereference in lpfc_els_abort()
scsi: lpfc: nvmet_fc: fix format string
scsi: qla2xxx: Fix crash due to NULL pointer dereference of ctx
scsi: qla2xxx: Fix mailbox pointer error in fwdump capture
scsi: qla2xxx: Set bit 15 for DIAG_ECHO_TEST MBC
scsi: qla2xxx: Modify T262 FW dump template to specify same start/end to debug customer issues
scsi: qla2xxx: Fix crash due to mismatch mumber of Q-pair creation for Multi queue
scsi: qla2xxx: Fix NULL pointer access due to redundant fc_host_port_name call
scsi: qla2xxx: Fix recursive loop during target mode configuration for ISP25XX leaving system unresponsive
scsi: bnx2fc: fix race condition in bnx2fc_get_host_stats()
scsi: qla2xxx: don't disable a not previously enabled PCI device
This is nine fixes, seven of which are for the qedi driver (new in
4.10) the other two are a use after free in the cxgbi drivers and a
potential NULL dereference in the rdac device handler.
Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is nine fixes, seven of which are for the qedi driver (new as of
4.10) the other two are a use after free in the cxgbi drivers and a
potential NULL dereference in the rdac device handler"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: libcxgbi: fix skb use after free
scsi: qedi: Fix endpoint NULL panic during recovery.
scsi: qedi: set max_fin_rt default value
scsi: qedi: Set firmware tcp msl timer value.
scsi: qedi: Fix endpoint NULL panic in qedi_set_path.
scsi: qedi: Set dma_boundary to 0xfff.
scsi: qedi: Correctly set firmware max supported BDs.
scsi: qedi: Fix bad pte call trace when iscsiuio is stopped.
scsi: scsi_dh_rdac: Use ctlr directly in rdac_failover_get()
If logout response is not received and ->ep_disconnect() is called then
close tcp conn by RST instead of FIN to cleanup conn resources
immediately.
Also move ->csk_push_tx_frames() above 'done:' to avoid calling
->csk_push_tx_frames() in error cases.
Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Pull SCSI target fixes from Nicholas Bellinger:
"Here are the target-pending fixes for v4.12-rc4:
- ibmviscsis ABORT_TASK handling fixes that missed the v4.12 merge
window. (Bryant Ly and Michael Cyr)
- Re-add a target-core check enforcing WRITE overflow reject that was
relaxed in v4.3, to avoid unsupported iscsi-target immediate data
overflow. (nab)
- Fix a target-core-user OOPs during device removal. (MNC + Bryant
Ly)
- Fix a long standing iscsi-target potential issue where kthread exit
did not wait for kthread_should_stop(). (Jiang Yi)
- Fix a iscsi-target v3.12.y regression OOPs involving initial login
PDU processing during asynchronous TCP connection close. (MNC +
nab)
This is a little larger than usual for an -rc4, primarily due to the
iscsi-target v3.12.y regression OOPs bug-fix.
However, it's an important patch as MNC + Hannes where both able to
trigger it using a reduced iscsi initiator login timeout combined with
a backend taking a long time to complete I/Os during iscsi login
driven session reinstatement"
* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
iscsi-target: Always wait for kthread_should_stop() before kthread exit
iscsi-target: Fix initial login PDU asynchronous socket close OOPs
tcmu: fix crash during device removal
target: Re-add check to reject control WRITEs with overflow data
ibmvscsis: Fix the incorrect req_lim_delta
ibmvscsis: Clear left-over abort_cmd pointers
It was not possible to enable both T10 PI and TPGS because they share
the same byte in the INQUIRY response. Logically OR the TPGS value
instead of using assignment.
Reported-by: Ritika Srivastava <ritika.srivastava@oracle.com>
Reviewed-by: Bart Van Assche <Bart.VanAssche@sandisk.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Hung task timeouts can result if a qlogic board breaks unexpectedly
while running I/O. These tasks become hung because command srb reference
counts are not going to zero, hence the affected srbs and commands do
not get freed. This fix accounts for this extra reference in the srbs in
the case of a board failure.
Fixes: a465537ad1 ("qla2xxx: Disable the adapter and skip error recovery in case of register disconnect")
Signed-off-by: Bill Kuzeja <william.kuzeja@stratus.com>
Acked-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Null check at line 966: if (ndlp) {, implies that ndlp might be NULL.
Functions lpfc_nlp_set_state() and lpfc_issue_els_prli() dereference
pointer ndlp. Include these function calls inside the IF block that
tests pointer ndlp.
Addresses-Coverity-ID: 1401856
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Acked-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
We might have a NULL pring in lpfc_els_abort(), for example on error
recovery path, since queues are destroyed during error recovery
mechanism.
In this case, we should just drop the abort since the queues will be
recreated anyway. This patch just verifies for NULL pointer and stop the
abortion of the queue in case of a NULL pring.
Also, this patch converts return type of lpfc_els_abort() from int to
void, since it's not checked anywhere.
Reported-by: Harsha Thyagaraja <hathyaga@in.ibm.com>
Reported-by: Naresh Bannoth <nbannoth@in.ibm.com>
Tested-by: Raphael Silva <raphasil@linux.vnet.ibm.com>
Signed-off-by: Guilherme G. Piccoli <gpiccoli@linux.vnet.ibm.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Acked-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The lpfc_nvmeio_data() tracing helper always takes a format string and
three additional arguments. The latest caller has a format string with
only two integer arguments, causing this harmless warning:
drivers/scsi/lpfc/lpfc_nvmet.c: In function 'lpfc_nvmet_xmt_fcp_release':
drivers/scsi/lpfc/lpfc_nvmet.c:802:25: error: too many arguments for format [-Werror=format-extra-args]
lpfc_nvmeio_data(phba, "NVMET FCP FREE: xri x%x ste %d\n", ctxp->oxid,
We could add a dummy argument here, but it seems reasonable to print
the 'abort' flag as the third argument.
Fixes: 19b58d9473 ("nvmet_fc: add req_release to lldd api")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This is quite a big update because it includes a rework of the lpfc
driver to separate the NVMe part from the FC part. The reason for
doing this is because two separate trees (the nvme and scsi trees
respectively) want to update the individual components and this
separation will prevent a really nasty cross tree entanglement by the
time we reach the next merge window. The rest of the fixes are the
usual minor sort with no significant security implications.
Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is quite a big update because it includes a rework of the lpfc
driver to separate the NVMe part from the FC part.
The reason for doing this is because two separate trees (the nvme and
scsi trees respectively) want to update the individual components and
this separation will prevent a really nasty cross tree entanglement by
the time we reach the next merge window.
The rest of the fixes are the usual minor sort with no significant
security implications"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (25 commits)
scsi: zero per-cmd private driver data for each MQ I/O
scsi: csiostor: fix use after free in csio_hw_use_fwconfig()
scsi: ufs: Clean up some rpm/spm level SysFS nodes upon remove
scsi: lpfc: fix build issue if NVME_FC_TARGET is not defined
scsi: lpfc: Fix NULL pointer dereference during PCI error recovery
scsi: lpfc: update version to 11.2.0.14
scsi: lpfc: Add MDS Diagnostic support.
scsi: lpfc: Fix NVMEI's handling of NVMET's PRLI response attributes
scsi: lpfc: Cleanup entry_repost settings on SLI4 queues
scsi: lpfc: Fix debugfs root inode "lpfc" not getting deleted on driver unload.
scsi: lpfc: Fix NVME I+T not registering NVME as a supported FC4 type
scsi: lpfc: Added recovery logic for running out of NVMET IO context resources
scsi: lpfc: Separate NVMET RQ buffer posting from IO resources SGL/iocbq/context
scsi: lpfc: Separate NVMET data buffer pool fir ELS/CT.
scsi: lpfc: Fix NMI watchdog assertions when running nvmet IOPS tests
scsi: lpfc: Fix NVMEI driver not decrementing counter causing bad rport state.
scsi: lpfc: Fix nvmet RQ resource needs for large block writes.
scsi: lpfc: Adding additional stats counters for nvme.
scsi: lpfc: Fix system crash when port is reset.
scsi: lpfc: Fix used-RPI accounting problem.
...
Fixes following signature in the stack trace:
BUG: unable to handle kernel NULL pointer dereference at 0000000000000374
IP: [<ffffffffa06ec8eb>] qla2x00_sp_free_dma+0xeb/0x2a0 [qla2xxx]
Cc: <stable@vger.kernel.org> # v4.10+
Signed-off-by: Joe Carnuccio <joe.carnuccio@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Set bit (BIT_15) to send right ECHO payload information for Diagnostic
Echo Test command.
Cc: <stable@vger.kernel.org> # v4.10+
Signed-off-by: Joe Carnuccio <joe.carnuccio@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
when driver is loaded with Multi Queue enabled, it was noticed that
there was one less queue pair created.
Following message would indicate this:
"No resources to create additional q pair."
The result of one less queue pair means that system can crash, if the
block mq layer thinks there is an extra hardware queue available, and
the driver will use a NULL ptr qpair in that instance.
Following stack trace is seen in one of the crash:
irq_create_affinity_masks+0x98/0x530
irq_create_affinity_masks+0x98/0x530
__pci_enable_msix+0x321/0x4e0
mutex_lock+0x12/0x40
pci_alloc_irq_vectors_affinity+0xb5/0x140
qla24xx_enable_msix+0x79/0x530 [qla2xxx]
qla2x00_request_irqs+0x61/0x2d0 [qla2xxx]
qla2x00_probe_one+0xc73/0x2390 [qla2xxx]
ida_simple_get+0x98/0x100
kernfs_next_descendant_post+0x40/0x50
local_pci_probe+0x45/0xa0
pci_device_probe+0xfc/0x140
driver_probe_device+0x2c5/0x470
__driver_attach+0xdd/0xe0
driver_probe_device+0x470/0x470
bus_for_each_dev+0x6c/0xc0
driver_attach+0x1e/0x20
bus_add_driver+0x45/0x270
driver_register+0x60/0xe0
__pci_register_driver+0x4c/0x50
qla2x00_module_init+0x1ce/0x21e [qla2xxx]
Cc: <stable@vger.kernel.org> # v4.10+
Signed-off-by: Sawan Chandak <sawan.chandak@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
If multiple tasks attempt to read the stats, it may happen that the
start_req_done completion is re-initialized while still being used by
another task, causing a list corruption.
This patch fixes the bug by adding a mutex to serialize the calls to
bnx2fc_get_host_stats().
WARNING: at lib/list_debug.c:48 list_del+0x6e/0xa0() (Not tainted)
Hardware name: PowerEdge R820
list_del corruption. prev->next should be ffff882035627d90, but was ffff884069541588
Pid: 40267, comm: perl Not tainted 2.6.32-642.3.1.el6.x86_64 #1
Call Trace:
[<ffffffff8107c691>] ? warn_slowpath_common+0x91/0xe0
[<ffffffff8107c796>] ? warn_slowpath_fmt+0x46/0x60
[<ffffffff812ad16e>] ? list_del+0x6e/0xa0
[<ffffffff81547eed>] ? wait_for_common+0x14d/0x180
[<ffffffff8106c4a0>] ? default_wake_function+0x0/0x20
[<ffffffff81547fd3>] ? wait_for_completion_timeout+0x13/0x20
[<ffffffffa05410b1>] ? bnx2fc_get_host_stats+0xa1/0x280 [bnx2fc]
[<ffffffffa04cf630>] ? fc_stat_show+0x90/0xc0 [scsi_transport_fc]
[<ffffffffa04cf8b6>] ? show_fcstat_tx_frames+0x16/0x20 [scsi_transport_fc]
[<ffffffff8137c647>] ? dev_attr_show+0x27/0x50
[<ffffffff8113b9be>] ? __get_free_pages+0xe/0x50
[<ffffffff812170e1>] ? sysfs_read_file+0x111/0x200
[<ffffffff8119a305>] ? vfs_read+0xb5/0x1a0
[<ffffffff8119b0b6>] ? fget_light_pos+0x16/0x50
[<ffffffff8119a651>] ? sys_read+0x51/0xb0
[<ffffffff810ee1fe>] ? __audit_syscall_exit+0x25e/0x290
[<ffffffff8100b0d2>] ? system_call_fastpath+0x16/0x1b
Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Acked-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When pci_enable_device() or pci_enable_device_mem() fail in
qla2x00_probe_one() we bail out but do a call to
pci_disable_device(). This causes the dev_WARN_ON() in
pci_disable_device() to trigger, as the device wasn't enabled
previously.
So instead of taking the 'probe_out' error path we can directly return
*iff* one of the pci_enable_device() calls fails.
Additionally rename the 'probe_out' goto label's name to the more
descriptive 'disable_device'.
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Fixes: e315cd28b9 ("[SCSI] qla2xxx: Code changes for qla data structure refactoring")
Cc: <stable@vger.kernel.org>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Giridhar Malavali <giridhar.malavali@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
skb->data is assigned to task->hdr in cxgbi_conn_alloc_pdu(),
skb gets freed after tx but task->hdr is still dereferenced in
iscsi_tcp_task_xmit() to avoid this call skb_get() after allocating skb
and free the skb in cxgbi_cleanup_task() or before allocating new skb in
cxgbi_conn_alloc_pdu().
Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
max_fin_rt is the maximum re-transmission of FIN packets
as part of the termination flow. After reaching this value
the FW will send a single RESET.
Signed-off-by: Nilesh Javali <nilesh.javali@cavium.com>
Signed-off-by: Manish Rangankar <manish.rangankar@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
munmap done by iscsiuio during a stop of the service triggers a "bad
pte" warning sometimes. munmap kernel path goes through the mmapped
pages and has a validation check for mapcount (in struct page) to be
zero or above. kzalloc, which we had used to allocate udev->ctrl, uses
slab allocations, which re-uses mapcount (union) for other purposes that
can make the mapcount look negative. Avoid all these trouble by invoking
one of the __get_free_pages wrappers to be used instead of kzalloc for
udev->ctrl.
BUG: Bad page map in process iscsiuio pte:80000000aa624067 pmd:3e6777067
page:ffffea0002a98900 count:2 mapcount:-2143289280
mapping: (null) index:0xffff8800aa624e00
page flags: 0x10075d00000090(dirty|slab)
page dumped because: bad pte
addr:00007fcba70a3000 vm_flags:0c0400fb anon_vma: (null)
mapping:ffff8803edf66e90 index:0
Call Trace:
dump_stack+0x19/0x1b
print_bad_pte+0x1af/0x250
unmap_page_range+0x7a7/0x8a0
unmap_single_vma+0x81/0xf0
unmap_vmas+0x49/0x90
unmap_region+0xbe/0x140
? vma_rb_erase+0x121/0x220
do_munmap+0x245/0x420
vm_munmap+0x41/0x60
SyS_munmap+0x22/0x30
tracesys+0xdd/0xe2
Signed-off-by: Arun Easi <arun.easi@cavium.com>
Signed-off-by: Manish Rangankar <manish.rangankar@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Pull block fixes from Jens Axboe:
"A small collection of fixes that should go into this cycle.
- a pull request from Christoph for NVMe, which ended up being
manually applied to avoid pulling in newer bits in master. Mostly
fibre channel fixes from James, but also a few fixes from Jon and
Vijay
- a pull request from Konrad, with just a single fix for xen-blkback
from Gustavo.
- a fuseblk bdi fix from Jan, fixing a regression in this series with
the dynamic backing devices.
- a blktrace fix from Shaohua, replacing sscanf() with kstrtoull().
- a request leak fix for drbd from Lars, fixing a regression in the
last series with the kref changes. This will go to stable as well"
* 'for-linus' of git://git.kernel.dk/linux-block:
nvmet: release the sq ref on rdma read errors
nvmet-fc: remove target cpu scheduling flag
nvme-fc: stop queues on error detection
nvme-fc: require target or discovery role for fc-nvme targets
nvme-fc: correct port role bits
nvme: unmap CMB and remove sysfs file in reset path
blktrace: fix integer parse
fuseblk: Fix warning in super_setup_bdi_name()
block: xen-blkback: add null check to avoid null pointer dereference
drbd: fix request leak introduced by locking/atomic, kref: Kill kref_sub()
This is the first sweep of mostly minor fixes. There's one security
one: the read past the end of a buffer in qedf, and a panic fix for
lpfc SLI-3 adapters, but the rest are a set of include and build
dependency tidy ups and assorted other small fixes and updates.
Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is the first sweep of mostly minor fixes. There's one security
one: the read past the end of a buffer in qedf, and a panic fix for
lpfc SLI-3 adapters, but the rest are a set of include and build
dependency tidy ups and assorted other small fixes and updates"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: pmcraid: remove redundant check to see if request_size is less than zero
scsi: lpfc: ensure els_wq is being checked before destroying it
scsi: cxlflash: Select IRQ_POLL
scsi: qedf: Avoid reading past end of buffer
scsi: qedf: Cleanup the type of io_log->op
scsi: lpfc: double lock typo in lpfc_ns_rsp()
scsi: qedf: properly update arguments position in function call
scsi: scsi_lib: Add #include <scsi/scsi_transport.h>
scsi: MAINTAINERS: update OSD entries
scsi: Skip deleted devices in __scsi_device_lookup
scsi: lpfc: Fix panic on BFS configuration
scsi: libfc: do not flood console with messages 'libfc: queue full ...'
In lower layer driver's (LLD) scsi_host_template, the driver may
optionally ask SCSI to allocate its private driver memory for each
command, by specifying cmd_size. This memory is allocated at the end of
scsi_cmnd by SCSI. Later when SCSI queues a command, the LLD can use
scsi_cmd_priv to get to its private data.
Some LLD, e.g. hv_storvsc, doesn't clear its private data before use. In
this case, the LLD may get to stale or uninitialized data in its private
driver memory. This may result in unexpected driver and hardware
behavior.
Fix this problem by also zeroing the private driver memory before
passing them to LLD.
Signed-off-by: Long Li <longli@microsoft.com>
Reviewed-by: Bart Van Assche <Bart.VanAssche@sandisk.com>
Reviewed-by: KY Srinivasan <kys@microsoft.com>
Reviewed-by: Christoph Hellwig <hch@infradead.org>
CC: <stable@vger.kernel.org> # 4.11+
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
mbp pointer is passed to csio_hw_validate_caps() so call mempool_free()
after calling csio_hw_validate_caps().
Signed-off-by: Varun Prakash <varun@chelsio.com>
Fixes: 541c571fa2 ("csiostor:Use firmware version from cxgb4/t4fw_version.h")
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When reloading module these two attributes aren't cleaned up properly
and they persist causing warnings when trying to load module
again. Additionally they are not recreated properly due to that.
Signed-off-by: Michał Potomski <michalx.potomski@intel.com>
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
fix build issue if NVME_FC_TARGET is not defined. noop the code. The
code will never be invoked if target mode is not enabled.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Recent commit on patchset "lpfc updates for 11.2.0.14" fixed an issue
about dereferencing a NULL pointer on port reset. The specific commit,
named "lpfc: Fix system crash when port is reset.", is missing a check
against NULL pointer on lpfc_els_flush_cmd() though.
Since we destroy the queues on adapter resets, like in PCI error
recovery path, we need the validation present on this patch in order to
avoid a NULL pointer dereference when trying to flush commands of ELS
wq, after it has been destroyed (which would lead to a kernel oops).
Tested-by: Raphael Silva <raphasil@linux.vnet.ibm.com>
Signed-off-by: Guilherme G. Piccoli <gpiccoli@linux.vnet.ibm.com>
Acked-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Change driver version to 11.2.0.14.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Added code to support Cisco MDS loopback diagnostic. The diagnostics run
various loopbacks including one which loops-back frame through the
driver.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Code review of NVMEI's FC_PORT_ROLE_NVME_DISCOVERY looked wrong.
Discussions with storage architecture team clarified NVMEI's audit of
the PRLI response port roles. Following up discussion with code review
showed a few minor corrections were required - especially in
anticipation of NVME auto discovery.
During PRLI, NVMEI should sent prli_init - which it it does. NVMET
should send prli_tgt and prli_disc - which it does. When NVMEI receives
a PRLI Response now, it audits the incoming target bits and stores the
attributes in the corresponding NDLP. Later, when NVMEI registers the
NVME rport, it uses the stored ndlp attributes to set the rport
port_roles correctly.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Too many work items being processed in IRQ context take a lot of CPU
time and cause problems.
With a recent change, we get out of the ISR after hitting entry_repost
work items on a queue. However, the actual values for entry repost are
still high. EQ is 128 and CQ is 128, this could translate into
processing 128 * 128 (16384) work items under IRQ context.
Set entry_repost in the actual queue creation routine now. Limit EQ
repost to 8 and CQ repost to 64 to further limit the amount of time
spent in the IRQ.
Fix fof IRQ routines as well.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When unloading and reloading the driver, the driver fails to recreate
the lpfc root inode in the debugfs tree.
The driver is incorrectly removing the lpfc root inode in
lpfc_debugfs_terminate in the first driver instance that unloads and
then sets the lpfc_debugfs_root global parameter to NULL. When the
final driver instance unloads, the debugfs calls quietly ignore the
remove on a NULL pointer. The bug is that the debugfs_remove call
returns void so the driver doesn't know to correctly set the global
parameter to NULL.
Base the debugfs_remove of the lpfc_debugfs_root parameter on
lpfc_debugfs_hba_count because this parameter tracks the fnX instance
tracked per driver instance.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When the driver send the RPA command, it does not send supported FC4
Type NVME to the management server.
Encode NVME (type x28) in the AttribEntry in the RPA command.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Previous logic would just drop the IO.
Added logic to queue the IO to wait for an IO context resource from an
IO thats already in progress.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Currently IO resources are mapped 1 to 1 with RQ buffers posted
Added logic to separate RQE buffers from IO op resources
(sgl/iocbq/context). During initialization, the driver will determine
how many SGLs it will allocate for NVMET (based on what the firmware
reports) and associate a NVMET IOCBq and NVMET context structure with
each one.
Now that hdr/data buffers are immediately reposted back to the RQ, 512
RQEs for each MRQ is sufficient. Also, since NVMET data buffers are now
128 bytes, lpfc_nvmet_mrq_post is not necessary anymore as we will
always post the max (512) buffers per NVMET MRQ.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Using 2048 byte buffer and onle 128 bytes is needed.
Create nee LFPC_NVMET_DATA_BUF_SIZE define to use for NVMET RQ/MRQs.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
After running IOPS test for 30 second we get kernel:NMI watchdog:
Watchdog detected hard LOCKUP on cpu 0
The driver is speend too much time in its ISR.
In ISR EQ and CQ processing routines, if we hit the entry_repost numbers
of EQE/CQEs just break out of the routine as opposed to hitting the
doorbell with NOARM and continue processing.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
During driver boot, a latency in the NVMET driver side causes the
incoming NVMEI PRLI to get rejected by the NVMET driver. When this
happens, the NVMEI driver runs out of PRLI retries. Bouncing the link
does not fix the situation.
If the NVMEI driver decides, on PRLI completion failures, to retry the
PRLI, always decrement the fc4_prli_sent counter. This allows the PRLI
completion to resolve to UNMAPPED when NVMET rejects the PRLI.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Large block writes to the nvme target were failing because the default
number of RQs posted was insufficient.
Expand the NVMET RQs to 2048 RQEs and ensure a minimum of 512 RQEs are
posted, no matter how many MRQs are configured.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
More debug messages added for nvme statistics.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The driver panic when using the els_wq during port reset.
Check for NULL els_wq before dereferencing.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
With 255 vports created a link trasition can casue a crash.
When going through discovery after a link bounce the driver is using
rpis before the cmd FCOE_POST_HDR_TEMPLATES completes. By doing that the
next rpi bumps the rpi range out of the boundary.
The fix it to increment the next_rpi only when the
FCOE_POST_HDR_TEMPLATE succeeds.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Previous assignment was causing the use of the uninitialized variable
_explan_ inside fc_seq_ls_rjt() function, which in this particular case
is being called by fc_seq_els_rsp_send().
[mkp: fixed typo]
Addresses-Coverity-ID: 1398125
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Some external hard drives don't support the sync command even though the
hard drive has write cache enabled. In this case, upon suspend request,
sync cache failures are ignored if the error code in the sense header is
ILLEGAL_REQUEST. There's not much we can do for these drives, so we
shouldn't fail to suspend for this error case. The drive may stay
powered if that's the setup for the port it's plugged into.
Signed-off-by: Derek Basehore <dbasehore@chromium.org>
Signed-off-by: Thierry Escande <thierry.escande@collabora.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The current code is not correctly calculating the req_lim_delta.
We want to make sure vscsi->credit is always incremented when
we do not send a response for the scsi op. Thus for the case where
there is a successfully aborted task we need to make sure the
vscsi->credit is incremented.
v2 - Moves the original location of the vscsi->credit increment
to a better spot. Since if we increment credit, the next command
we send back will have increased req_lim_delta. But we probably
shouldn't be doing that until the aborted cmd is actually released.
Otherwise the client will think that it can send a new command, and
we could find ourselves short of command elements. Not likely, but could
happen.
This patch depends on both:
commit 25e7853126 ("ibmvscsis: Do not send aborted task response")
commit 98883f1b54 ("ibmvscsis: Clear left-over abort_cmd pointers")
Signed-off-by: Bryant G. Ly <bryantly@linux.vnet.ibm.com>
Reviewed-by: Michael Cyr <mikecyr@linux.vnet.ibm.com>
Cc: <stable@vger.kernel.org> # v4.8+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
With the addition of ibmvscsis->abort_cmd pointer within
commit 25e7853126 ("ibmvscsis: Do not send aborted task response"),
make sure to explicitly NULL these pointers when clearing
DELAY_SEND flag.
Do this for two cases, when getting the new new ibmvscsis
descriptor in ibmvscsis_get_free_cmd() and before posting
the response completion in ibmvscsis_send_messages().
Signed-off-by: Bryant G. Ly <bryantly@linux.vnet.ibm.com>
Reviewed-by: Michael Cyr <mikecyr@linux.vnet.ibm.com>
Cc: <stable@vger.kernel.org> # v4.8+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Pull SCSI target updates from Nicholas Bellinger:
"Things were a lot more calm than previously expected. It's primarily
fixes in various areas, with most of the new functionality centering
around TCMU backend driver work that Xiubo Li has been driving.
Here's the summary on the feature side:
- Make T10-PI verify configurable for emulated (FILEIO + RD) backends
(Dmitry Monakhov)
- Allow target-core/TCMU pass-through to use in-kernel SPC-PR logic
(Bryant Ly + MNC)
- Add TCMU support for growing ring buffer size (Xiubo Li + MNC)
- Add TCMU support for global block data pool (Xiubo Li + MNC)
and on the bug-fix side:
- Fix COMPARE_AND_WRITE non GOOD status handling for READ phase
failures (Gary Guo + nab)
- Fix iscsi-target hang with explicitly changing per NodeACL
CmdSN number depth with concurrent login driven session
reinstatement. (Gary Guo + nab)
- Fix ibmvscsis fabric driver ABORT task handling (Bryant Ly)
- Fix target-core/FILEIO zero length handling (Bart Van Assche)
Also, there was an OOPs introduced with the WRITE_VERIFY changes that
I ended up reverting at the last minute, because as not unusual Bart
and I could not agree on the fix in time for -rc1. Since it's specific
to a conformance test, it's been reverted for now.
There is a separate patch in the queue to address the underlying
control CDB write overflow regression in >= v4.3 separate from the
WRITE_VERIFY revert here, that will be pushed post -rc1"
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (30 commits)
Revert "target: Fix VERIFY and WRITE VERIFY command parsing"
IB/srpt: Avoid that aborting a command triggers a kernel warning
IB/srpt: Fix abort handling
target/fileio: Fix zero-length READ and WRITE handling
ibmvscsis: Do not send aborted task response
tcmu: fix module removal due to stuck thread
target: Don't force session reset if queue_depth does not change
iscsi-target: Set session_fall_back_to_erl0 when forcing reinstatement
target: Fix compare_and_write_callback handling for non GOOD status
tcmu: Recalculate the tcmu_cmd size to save cmd area memories
tcmu: Add global data block pool support
tcmu: Add dynamic growing data area feature support
target: fixup error message in target_tg_pt_gp_tg_pt_gp_id_store()
target: fixup error message in target_tg_pt_gp_alua_access_type_store()
target/user: PGR Support
target: Add WRITE_VERIFY_16
Documentation/target: add an example script to configure an iSCSI target
target: Use kmalloc_array() in transport_kmap_data_sg()
target: Use kmalloc_array() in compare_and_write_callback()
target: Improve size determinations in two functions
...
If the list search in sg_get_rq_mark() fails to find a valid request, we
return a bogus element. This then can later lead to a GPF in
sg_remove_scat().
So don't return bogus Sg_requests in sg_get_rq_mark() but NULL in case
the list search doesn't find a valid request.
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Doug Gilbert <dgilbert@interlog.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Doug Gilbert <dgilbert@interlog.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
For a zoned block device, sd_zbc_complete() handles zone write unlock on
completion of a REQ_OP_WRITE_ZEROES command but the zone write locking
is missing from sd_setup_write_zeroes_cmnd(). This patch fixes this
problem by locking the target zone of a REQ_OP_WRITE_ZEROES request.
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
scsi_io_init() may fail, leaving a zone of a zoned block device locked.
Fix this by properly unlocking the write same request target zone if
scsi_io_init() fails.
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Merge tag 'hwparam-20170420' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
Pull hw lockdown support from David Howells:
"Annotation of module parameters that configure hardware resources
including ioports, iomem addresses, irq lines and dma channels.
This allows a future patch to prohibit the use of such module
parameters to prevent that hardware from being abused to gain access
to the running kernel image as part of locking the kernel down under
UEFI secure boot conditions.
Annotations are made by changing:
module_param(n, t, p)
module_param_named(n, v, t, p)
module_param_array(n, t, m, p)
to:
module_param_hw(n, t, hwtype, p)
module_param_hw_named(n, v, t, hwtype, p)
module_param_hw_array(n, t, hwtype, m, p)
where the module parameter refers to a hardware setting
hwtype specifies the type of the resource being configured. This can
be one of:
ioport Module parameter configures an I/O port
iomem Module parameter configures an I/O mem address
ioport_or_iomem Module parameter could be either (runtime set)
irq Module parameter configures an I/O port
dma Module parameter configures a DMA channel
dma_addr Module parameter configures a DMA buffer address
other Module parameter configures some other value
Note that the hwtype is compile checked, but not currently stored (the
lockdown code probably won't require it). It is, however, there for
future use.
A bonus is that the hwtype can also be used for grepping.
The intention is for the kernel to ignore or reject attempts to set
annotated module parameters if lockdown is enabled. This applies to
options passed on the boot command line, passed to insmod/modprobe or
direct twiddling in /sys/module/ parameter files.
The module initialisation then needs to handle the parameter not being
set, by (1) giving an error, (2) probing for a value or (3) using a
reasonable default.
What I can't do is just reject a module out of hand because it may
take a hardware setting in the module parameters. Some important
modules, some ipmi stuff for instance, both probe for hardware and
allow hardware to be manually specified; if the driver is aborts with
any error, you don't get any ipmi hardware.
Further, trying to do this entirely in the module initialisation code
doesn't protect against sysfs twiddling.
[!] Note that in and of itself, this series of patches should have no
effect on the the size of the kernel or code execution - that is
left to a patch in the next series to effect. It does mark
annotated kernel parameters with a KERNEL_PARAM_FL_HWPARAM flag in
an already existing field"
* tag 'hwparam-20170420' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs: (38 commits)
Annotate hardware config module parameters in sound/pci/
Annotate hardware config module parameters in sound/oss/
Annotate hardware config module parameters in sound/isa/
Annotate hardware config module parameters in sound/drivers/
Annotate hardware config module parameters in fs/pstore/
Annotate hardware config module parameters in drivers/watchdog/
Annotate hardware config module parameters in drivers/video/
Annotate hardware config module parameters in drivers/tty/
Annotate hardware config module parameters in drivers/staging/vme/
Annotate hardware config module parameters in drivers/staging/speakup/
Annotate hardware config module parameters in drivers/staging/media/
Annotate hardware config module parameters in drivers/scsi/
Annotate hardware config module parameters in drivers/pcmcia/
Annotate hardware config module parameters in drivers/pci/hotplug/
Annotate hardware config module parameters in drivers/parport/
Annotate hardware config module parameters in drivers/net/wireless/
Annotate hardware config module parameters in drivers/net/wan/
Annotate hardware config module parameters in drivers/net/irda/
Annotate hardware config module parameters in drivers/net/hamradio/
Annotate hardware config module parameters in drivers/net/ethernet/
...
A bunch of changes to virtio, most affecting virtio net.
ptr_ring batched zeroing - first of batching enhancements
that seems ready.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio updates from Michael Tsirkin:
"Fixes, cleanups, performance
A bunch of changes to virtio, most affecting virtio net. Also ptr_ring
batched zeroing - first of batching enhancements that seems ready."
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
s390/virtio: change maintainership
tools/virtio: fix spelling mistake: "wakeus" -> "wakeups"
virtio_net: tidy a couple debug statements
ptr_ring: support testing different batching sizes
ringtest: support test specific parameters
ptr_ring: batch ring zeroing
virtio: virtio_driver doc
virtio_net: don't reset twice on XDP on/off
virtio_net: fix support for small rings
virtio_net: reduce alignment for buffers
virtio_net: rework mergeable buffer handling
virtio_net: allow specifying context for rx
virtio: allow extra context per descriptor
tools/virtio: fix build breakage
virtio: add context flag to find vqs
virtio: wrap find_vqs
ringtest: fix an assert statement
The 2nd check to see if request_size is less than zero is redundant
because the first check takes error exit path on this condition. So,
since it is redundant, remove it.
Detected by CoverityScan, CID#146149 ("Logically Dead Code")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
I believe there is a typo on the wq destroy of els_wq, currently the
driver is checking if els_cq is not null and I think this should be a
check on els_wq instead.
Detected by CoverityScan, CID#1411629 ("Copy-paste error")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The driver now uses IRQ_POLL and needs to select it to avoid the
following build error.
ERROR: ".irq_poll_complete" [drivers/scsi/cxlflash/cxlflash.ko] undefined!
ERROR: ".irq_poll_sched" [drivers/scsi/cxlflash/cxlflash.ko] undefined!
ERROR: ".irq_poll_disable" [drivers/scsi/cxlflash/cxlflash.ko] undefined!
ERROR: ".irq_poll_init" [drivers/scsi/cxlflash/cxlflash.ko] undefined!
Fixes: cba06e6de4 ("scsi: cxlflash: Implement IRQ polling for RRQ processing")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Using memcpy() from a string that is shorter than the length copied
means the destination buffer is being filled with arbitrary data from
the kernel rodata segment. Instead, use strncpy() which will fill the
trailing bytes with zeros.
This was found with the future CONFIG_FORTIFY_SOURCE feature.
Cc: Daniel Micay <danielmicay@gmail.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
We store sc_cmd->cmnd[0] which is an unsigned char in io_log->op so
this should also be unsigned char. The other thing is that this is
displayed in the debugfs:
seq_printf(s, "0x%02x:", io_log->op);
Smatch complains that the formatting won't work for negative values so
changing it to unsigned silences that warning as well.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
There is a double lock bug here so this will deadlock instead of
unlocking.
Fixes: 1c5b12f763 ("Fix implicit logo and RSCN handling for NVMET")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Properly update the position of the arguments in function call.
Addresses-Coverity-ID: 1402010
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Acked-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This patch avoids that when building with W=1 the compiler complains
that __scsi_init_queue() has not been declared. See also commit
d48777a633 ("scsi: remove __scsi_alloc_queue").
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When a device is unplugged from a SCSI controller, if the scsi_device is
still in use by application layer, it won't get released until users
close it.
In this case, scsi_device_remove just set the scsi_device's state to be
SDEV_DEL. But if you plug the disk just before the old scsi_device is
released, then there will be two scsi_device structures in
scsi_host->__devices. When the next unplug event happens, some low-level
drivers will check whether the scsi_device has been added to host (for
example the MegaRAID SAS series controller) by calling
scsi_device_lookup(call __scsi_device_lookup) in function
megasas_aen_polling. __scsi_device_lookup will return the first
scsi_device. Because its state is SDEV_DEL, the scsi_device_lookup will
return NULL, making the low-level driver assume that the scsi_device has
been removed, and won't call scsi_device_remove which will lead to hot
swap failure.
Signed-off-by: Zhou Zhengping <johnzzpcrystal@gmail.com>
Tested-by: Zeng Rujia <ZengRujia@sangfor.com.cn>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=195607
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
To select the appropriate shost template, the driver is issuing a
mailbox command to retrieve the wwn. Turns out the sending of the
command precedes the reset of the function. On SLI-4 adapters, this is
inconsequential as the mailbox command location is specified by dma via
the BMBX register. However, on SLI-3 adapters, the location of the
mailbox command submission area changes. When the function is first
powered on or reset, the cmd is submitted via PCI bar memory. Later the
driver changes the function config to use host memory and DMA. The
request to start a mailbox command is the same, a simple doorbell write,
regardless of submission area. So.. if there has not been a boot driver
run against the adapter, the mailbox command works as defaults are
ok. But, if the boot driver has configured the card and, and if no
platform pci function/slot reset occurs as the os starts, the mailbox
command will fail. The SLI-3 device will use the stale boot driver dma
location. This can cause PCI eeh errors.
Fix is to reset the sli-3 function before sending the mailbox command,
thus synchronizing the function/driver on mailbox location.
Note: The fix uses routines that are typically invoked later in the call
flow to reset the sli-3 device. The issue in using those routines is
that the normal (non-fix) flow does additional initialization, namely
the allocation of the pport structure. So, rather than significantly
reworking the initialization flow so that the pport is alloc'd first,
pointer checks are added to work around it. Checks are limited to the
routines invoked by a sli-3 adapter (s3 routines) as this fix/early call
is only invoked on a sli3 adapter. Nothing changes post the
fix. Subsequent initialization, and another adapter reset, still occur -
both on sli-3 and sli-4 adapters.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Fixes: 96418b5e2c ("scsi: lpfc: Fix eh_deadline setting for sli3 adapters.")
Cc: stable@vger.kernel.org # v4.11+
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When the FCoE sending side becomes congested libfc tries to reduce the
queue depth on the host; however due to the built-in lag before
attempting to ramp down the queue depth _again_ the message log is
flooded with the following message:
libfc: queue full, reducing can_queue to 512
With this patch the message is printed only once (ie when it's
actually changed).
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Bart Van Assche <Bart.VanAssche@sandisk.com>
Acked-by: Johannes Thumshirn <jth@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
We now have memalloc_noreclaim_{save,restore} helpers for robust setting
and clearing of PF_MEMALLOC. Let's convert the code which was using the
generic tsk_restore_flags(). No functional change.
[vbabka@suse.cz: in net/core/sock.c the hunk is missing]
Link: http://lkml.kernel.org/r/20170405074700.29871-4-vbabka@suse.cz
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Josef Bacik <jbacik@fb.com>
Cc: Lee Duncan <lduncan@suse.com>
Cc: Chris Leech <cleech@redhat.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Wouter Verhelst <w@uter.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Remove an inline from a fairly big function that is used often. It's
unlikely that calling or not calling it makes a lot of difference.
Saves around 8k text in my kernel.
text data bss dec hex filename
9047801 5367568 11116544 25531913 1859609 vmlinux-before-megasas
9039417 5367568 11116544 25523529 1857549 vmlinux-megasas
Link: http://lkml.kernel.org/r/20170315021431.13107-7-andi@firstfloor.org
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Kashyap Desai <kashyap.desai@avagotech.com>
Cc: Sumit Saxena <sumit.saxena@avagotech.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This typo is quite common. Fix it and add it to the spelling file so
that checkpatch catches it earlier.
Link: http://lkml.kernel.org/r/20170317011131.6881-2-sboyd@codeaurora.org
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull block fixes and updates from Jens Axboe:
"Some fixes and followup features/changes that should go in, in this
merge window. This contains:
- Two fixes for lightnvm from Javier, fixing problems in the new code
merge previously in this merge window.
- A fix from Jan for the backing device changes, fixing an issue in
NFS that causes a failure to mount on certain setups.
- A change from Christoph, cleaning up the blk-mq init and exit
request paths.
- Remove elevator_change(), which is now unused. From Bart.
- A fix for queue operation invocation on a dead queue, from Bart.
- A series fixing up mtip32xx for blk-mq scheduling, removing a
bandaid we previously had in place for this. From me.
- A regression fix for this series, fixing a case where we wait on
workqueue flushing from an invalid (non-blocking) context. From me.
- A fix/optimization from Ming, ensuring that we don't both quiesce
and freeze a queue at the same time.
- A fix from Peter on lock ordering for CPU hotplug. Not a real
problem right now, but will be once the CPU hotplug rework goes in.
- A series from Omar, cleaning up out blk-mq debugfs support, and
adding support for exporting info from schedulers in debugfs as
well. This is really useful in debugging stalls or livelocks. From
Omar"
* 'for-linus' of git://git.kernel.dk/linux-block: (28 commits)
mq-deadline: add debugfs attributes
kyber: add debugfs attributes
blk-mq-debugfs: allow schedulers to register debugfs attributes
blk-mq: untangle debugfs and sysfs
blk-mq: move debugfs declarations to a separate header file
blk-mq: Do not invoke queue operations on a dead queue
blk-mq-debugfs: get rid of a bunch of boilerplate
blk-mq-debugfs: rename hw queue directories from <n> to hctx<n>
blk-mq-debugfs: don't open code strstrip()
blk-mq-debugfs: error on long write to queue "state" file
blk-mq-debugfs: clean up flag definitions
blk-mq-debugfs: separate flags with |
nfs: Fix bdi handling for cloned superblocks
block/mq: Cure cpu hotplug lock inversion
lightnvm: fix bad back free on error path
lightnvm: create cmd before allocating request
blk-mq: don't use sync workqueue flushing from drivers
mtip32xx: convert internal commands to regular block infrastructure
mtip32xx: cleanup internal tag assumptions
block: don't call blk_mq_quiesce_queue() after queue is frozen
...
The driver is sending a response to the actual scsi op that was
aborted by an abort task TM, while LIO is sending a response to
the abort task TM.
ibmvscsis_tgt does not send the response to the client until
release_cmd time. The reason for this was because if we did it
at queue_status time, then the client would be free to reuse the
tag for that command, but we're still using the tag until the
command is released at release_cmd time, so we chose to delay
sending the response until then. That then caused this issue, because
release_cmd is always called, even if queue_status is not.
SCSI spec says that the initiator that sends the abort task
TM NEVER gets a response to the aborted op and with the current
code it will send a response. Thus this fix will remove that response
if the CMD_T_ABORTED && !CMD_T_TAS.
Another case with a small timing window is the case where if LIO sends a
TMR_DOES_NOT_EXIST, and the release_cmd callback is called for the TMR Abort
cmd before the release_cmd for the (attemped) aborted cmd, then we need to
ensure that we send the response for the (attempted) abort cmd to the client
before we send the response for the TMR Abort cmd.
Cc: <stable@vger.kernel.org> # v4.8+
Signed-off-by: Bryant G. Ly <bryantly@linux.vnet.ibm.com>
Signed-off-by: Michael Cyr <mikecyr@linux.vnet.ibm.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Here is the big set of new char/misc driver drivers and features for
4.12-rc1.
There's lots of new drivers added this time around, new firmware drivers
from Google, more auxdisplay drivers, extcon drivers, fpga drivers, and
a bunch of other driver updates. Nothing major, except if you happen to
have the hardware for these drivers, and then you will be happy :)
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH:
"Here is the big set of new char/misc driver drivers and features for
4.12-rc1.
There's lots of new drivers added this time around, new firmware
drivers from Google, more auxdisplay drivers, extcon drivers, fpga
drivers, and a bunch of other driver updates. Nothing major, except if
you happen to have the hardware for these drivers, and then you will
be happy :)
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (136 commits)
firmware: google memconsole: Fix return value check in platform_memconsole_init()
firmware: Google VPD: Fix return value check in vpd_platform_init()
goldfish_pipe: fix build warning about using too much stack.
goldfish_pipe: An implementation of more parallel pipe
fpga fr br: update supported version numbers
fpga: region: release FPGA region reference in error path
fpga altera-hps2fpga: disable/unprepare clock on error in alt_fpga_bridge_probe()
mei: drop the TODO from samples
firmware: Google VPD sysfs driver
firmware: Google VPD: import lib_vpd source files
misc: lkdtm: Add volatile to intentional NULL pointer reference
eeprom: idt_89hpesx: Add OF device ID table
misc: ds1682: Add OF device ID table
misc: tsl2550: Add OF device ID table
w1: Remove unneeded use of assert() and remove w1_log.h
w1: Use kernel common min() implementation
uio_mf624: Align memory regions to page size and set correct offsets
uio_mf624: Refactor memory info initialization
uio: Allow handling of non page-aligned memory regions
hangcheck-timer: Fix typo in comment
...
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Merge tag 'for-linus-4.12b-rc0b-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen updates from Juergen Gross:
"Xen fixes and featrues for 4.12. The main changes are:
- enable building the kernel with Xen support but without enabling
paravirtualized mode (Vitaly Kuznetsov)
- add a new 9pfs xen frontend driver (Stefano Stabellini)
- simplify Xen's cpuid handling by making use of cpu capabilities
(Juergen Gross)
- add/modify some headers for new Xen paravirtualized devices
(Oleksandr Andrushchenko)
- EFI reset_system support under Xen (Julien Grall)
- and the usual cleanups and corrections"
* tag 'for-linus-4.12b-rc0b-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: (57 commits)
xen: Move xen_have_vector_callback definition to enlighten.c
xen: Implement EFI reset_system callback
arm/xen: Consolidate calls to shutdown hypercall in a single helper
xen: Export xen_reboot
xen/x86: Call xen_smp_intr_init_pv() on BSP
xen: Revert commits da72ff5bfc and 72a9b18629
xen/pvh: Do not fill kernel's e820 map in init_pvh_bootparams()
xen/scsifront: use offset_in_page() macro
xen/arm,arm64: rename __generic_dma_ops to xen_get_dma_ops
xen/arm,arm64: fix xen_dma_ops after 815dd18 "Consolidate get_dma_ops..."
xen/9pfs: select CONFIG_XEN_XENBUS_FRONTEND
x86/cpu: remove hypervisor specific set_cpu_features
vmware: set cpu capabilities during platform initialization
x86/xen: use capabilities instead of fake cpuid values for xsave
x86/xen: use capabilities instead of fake cpuid values for x2apic
x86/xen: use capabilities instead of fake cpuid values for mwait
x86/xen: use capabilities instead of fake cpuid values for acpi
x86/xen: use capabilities instead of fake cpuid values for acc
x86/xen: use capabilities instead of fake cpuid values for mtrr
x86/xen: use capabilities instead of fake cpuid values for aperf
...
Pull networking updates from David Millar:
"Here are some highlights from the 2065 networking commits that
happened this development cycle:
1) XDP support for IXGBE (John Fastabend) and thunderx (Sunil Kowuri)
2) Add a generic XDP driver, so that anyone can test XDP even if they
lack a networking device whose driver has explicit XDP support
(me).
3) Sparc64 now has an eBPF JIT too (me)
4) Add a BPF program testing framework via BPF_PROG_TEST_RUN (Alexei
Starovoitov)
5) Make netfitler network namespace teardown less expensive (Florian
Westphal)
6) Add symmetric hashing support to nft_hash (Laura Garcia Liebana)
7) Implement NAPI and GRO in netvsc driver (Stephen Hemminger)
8) Support TC flower offload statistics in mlxsw (Arkadi Sharshevsky)
9) Multiqueue support in stmmac driver (Joao Pinto)
10) Remove TCP timewait recycling, it never really could possibly work
well in the real world and timestamp randomization really zaps any
hint of usability this feature had (Soheil Hassas Yeganeh)
11) Support level3 vs level4 ECMP route hashing in ipv4 (Nikolay
Aleksandrov)
12) Add socket busy poll support to epoll (Sridhar Samudrala)
13) Netlink extended ACK support (Johannes Berg, Pablo Neira Ayuso,
and several others)
14) IPSEC hw offload infrastructure (Steffen Klassert)"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (2065 commits)
tipc: refactor function tipc_sk_recv_stream()
tipc: refactor function tipc_sk_recvmsg()
net: thunderx: Optimize page recycling for XDP
net: thunderx: Support for XDP header adjustment
net: thunderx: Add support for XDP_TX
net: thunderx: Add support for XDP_DROP
net: thunderx: Add basic XDP support
net: thunderx: Cleanup receive buffer allocation
net: thunderx: Optimize CQE_TX handling
net: thunderx: Optimize RBDR descriptor handling
net: thunderx: Support for page recycling
ipx: call ipxitf_put() in ioctl error path
net: sched: add helpers to handle extended actions
qed*: Fix issues in the ptp filter config implementation.
qede: Fix concurrency issue in PTP Tx path processing.
stmmac: Add support for SIMATIC IOT2000 platform
net: hns: fix ethtool_get_strings overflow in hns driver
tcp: fix wraparound issue in tcp_lp
bpf, arm64: fix jit branch offset related to ldimm64
bpf, arm64: implement jiting of BPF_XADD
...
We are going to add more parameters to find_vqs, let's wrap the call so
we don't need to tweak all drivers every time.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Remove the request_idx parameter, which can't be used safely now that we
support I/O schedulers with blk-mq. Except for a superflous check in
mtip32xx it was unused anyway.
Also pass the tag_set instead of just the driver data - this allows drivers
to avoid some code duplication in a follow on cleanup.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
Kevin Barnett