Remove reference to Series-9 HBA and created arc ctrl check function.
Signed-off-by: NPrasad B Munirathnam <prasad.munirathnam@microsemi.com>
Signed-off-by: NRaghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: NDavid Carroll <david.carroll@microsemi.com>
Signed-off-by: NMartin 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: NRaghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: NDavid Carroll <david.carroll@microsemi.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Log the status of the controller before issuing a reset.
Signed-off-by: NRaghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: NDavid Carroll <david.carroll@microsemi.com>
Signed-off-by: NMartin 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: NRaghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: NDavid Carroll <david.carroll@microsemi.com>
Signed-off-by: NMartin 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: NRaghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: NDavid Carroll <david.carroll@microsemi.com>
Signed-off-by: NMartin 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: NRaghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: NDavid Carroll <david.carroll@microsemi.com>
Signed-off-by: NMartin 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: NRaghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: NDavid Carroll <david.carroll@microsemi.com>
Signed-off-by: NMartin 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: NRaghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: NDave Carroll <david.carroll@microsemi.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

There were pci_alloc_consistent() failures on ARM64 platform.  Use
dma_alloc_coherent() with GFP_KERNEL flag DMA memory allocations.
Signed-off-by: NMahesh Rajashekhara <mahesh.rajashekhara@microsemi.com>
[hch: tweaked indentation, removed memsets]
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Acked-by: NDave Carroll <david.carroll@microsemi.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Fix typos and add the following to the scripts/spelling.txt:

  therfore||therefore

Besides, tidy up comment blocks for 80-col wrapping.

Link: http://lkml.kernel.org/r/1481573103-11329-31-git-send-email-yamada.masahiro@socionext.comSigned-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Added support to retrieve driver version from a new sysfs variable called
driver_version. It makes it easier for the user to figure out the driver
version that is currently running.
Signed-off-by: NRaghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: NDavid Carroll <David.Carroll@microsemi.com>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Replaced camel case with snake case for init supported options.
Suggested-by: NJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: NRaghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: NDavid Carroll <David.Carroll@microsemi.com>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Change the aacraid driver prefix from 1.2-1 to 1.2.1
Signed-off-by: NRaghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: NDave Carroll <David.Carroll@microsemi.com>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Added new copyright messages
Signed-off-by: NRaghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: NDave Carroll <David.Carroll@microsemi.com>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Added a new IWBR soft reset type, reworked the IOP reset interface for
a bit.
Signed-off-by: NRaghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: NDave Carroll <David.Carroll@microsemi.com>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

This patch adds support to retrieve the unique identifier data (VPD page
83 type3) for Logical drives created on SmartIOC 2000 products. In
addition  added a sysfs device structure to expose the id information.
Signed-off-by: NRaghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: NDave Carroll <David.Carroll@microsemi.com>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Added task management command support to abort any timed out commands
in case of a eh_abort call and to reset lun's in case of eh_reset call.
Signed-off-by: NRaghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: NDave Carroll <David.Carroll@microsemi.com>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Added support to send direct pasthru srb commands from management utilty
to the  controller.
Signed-off-by: NRaghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: NDave Carroll <David.Carroll@microsemi.com>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Added support to set qd of drives in slave_configure.This only works for
HBA1000 attached drives.
Signed-off-by: NRaghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: NDave Carroll <David.Carroll@microsemi.com>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

sa_firmware adds the capability to differentiate the new SmartIOC family
of adapters from the series 8 and below.
Signed-off-by: NRaghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: NDave Carroll <David.Carroll@microsemi.com>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

This  patch lays the groundwork for supporting the new HBA-1000 controller
family.A new INIT structure INIT_STRUCT_8 has been added which allows for a
variable size for MSI-x vectors among other things,  and is used for both
Series-8, HBA-1000 and SmartIOC-2000.
Signed-off-by: NRaghava Aditya Renukunta <raghavaaditya.renukunta@microsemi.com>
Signed-off-by: NDave Carroll <David.Carroll@microsemi.com>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Removed duplicate code that for acquiring and releasing irqs
Signed-off-by: NRaghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: NDave Carroll <David.Carroll@microsemi.com>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Controllers with this PCI ID never shipped outside of
PMCS/Microsemi. Remove the ID from the aacraid driver. smartpqi is the
correct driver for these controllers.

[mkp: patch description]
Reviewed-by: NScott Teel <scott.teel@microsemi.com>
Signed-off-by: NKevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: NDon Brace <don.brace@microsemi.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Use pci_alloc_irq_vectors and drop the hand-crafted interrupt affinity
routines.
Signed-off-by: NHannes Reinecke <hare@suse.com>
Cc: Adaptec OEM Raid Solutions <aacraid@microsemi.com>
Reviewed-by: NRaghava Aditya Renukunta <raghavaaditya.renukunta@microsemi.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Only SRC-based adapters support the AifReqEvent function, so there is no
point in trying to activate it on older, non-SRC based adapters.  Doing
so lead to crashes on older adapters.
Signed-off-by: NHannes Reinecke <hare@suse.com>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.com>
Reviewed-by: NRaghava Aditya Renukunta <RaghavaAaditya.Renukunta@microsemi.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Firmware AIF messages about cache loss and data recovery are being missed
by the driver since currently they are not captured but rather let go.
This patch to capture those messages and log them for the user.
Signed-off-by: NRaghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

The adapter has to be started after updating the number of MSIX Vectors

Fixes: ecc479e0 (aacraid: Set correct MSIX count for EEH recovery)
Cc: stable@vger.kernel.org
Signed-off-by: NRaghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

gcc-6 warns about obviously wrong indentation for newly added code in
aac_slave_configure():

drivers/scsi/aacraid/linit.c: In function 'aac_slave_configure':
drivers/scsi/aacraid/linit.c:458:3: warning: statement is indented as if it were guarded by... [-Wmisleading-indentation]
   sdev->tagged_supported = 1;
   ^~~~
drivers/scsi/aacraid/linit.c:455:4: note: ...this 'else' clause, but it is not

gcc is correct, and evidently this was meant to be within the curly
braces that should have been there to start with. This patch adds them,
which avoids the warning and makes it clear what was intended here.

Nothing changes in behavior because in the 'if' block, the
sdev->tagged_supported flag is known to be set already.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Fixes: 6bf3b630 ("aacraid: SCSI blk tag support")
Reviewed-by: NRaghava Aditya Renukunta <raghavaaditya.renukunta@pmcs.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

During EEH PCI hotplug activity kernel unloads and loads the driver,
causing character device to be unregistered(aac_remove_one).When the
driver is loaded back using aac_probe_one the character device needs
to be registered again for the AIF management tools to work.

Fixed by adding code to register character device in aac_probe_one if
it is unregistered in aac_remove_one.
Signed-off-by: NRaghava Aditya Renukunta <raghavaaditya.renukunta@pmcs.com>
Reviewed-by: NShane Seymour <shane.seymour@hpe.com>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

while driver removal is in progress or PCI shutdown is invoked, driver
kills AIF aacraid thread, but IOCTL requests from the management tools
re-start AIF thread leading to IOP_RESET.

Fixed by setting adapter_shutdown flag when PCI shutdown is invoked.
Signed-off-by: NRaghava Aditya Renukunta <raghavaaditya.renukunta@pmcs.com>
Reviewed-by: NShane Seymour <shane.seymour@hpe.com>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: NTomas Henzl <thenzl@redhat.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

aac_mutex was used to create protect the ioctl path for only the compat
path, it would be make more sense to place mutex in aac_do_ioctl, which
is the main ioctl function call that handles all ioctl commands.

Created new mutex ioctl_mutex in struct aac_dev to protect switch case
in aac_do_ioctl and removed aac_mutex from aac_cfg_ioctl and
aac_compat_do_ioctl
Signed-off-by: NRaghava Aditya Renukunta <RaghavaAditya.Renukunta@pmcs.com>
Reviewed-by: NTomas Henzl <thenzl@redhat.com>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Series 7 does not support PCI hot reset used by EEH.

Enabled fundamental reset only for Series 7
Signed-off-by: NRaghava Aditya Renukunta <raghavaaditya.renukunta@pmcs.com>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: NTomas Henzl <thenzl@redhat.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

During EEH recovery number of online CPU's might change thereby changing
the number of MSIx vectors. Since each fib is allocated to a vector,
changes in the number of vectors causes fib to be sent thru invalid
vectors.In addition the correct number of MSIx vectors is not updated in
the INIT struct sent to the controller, when it is reinitialized.

Fixed by reassigning vectors to fibs based on the updated number of MSIx
vectors and updating the INIT structure before sending to controller.

Fixes: MSI-X vector calculation for suspend/resume
Cc: stable@vger.kernel.org
Signed-off-by: NRaghava Aditya Renukunta <raghavaaditya.renukunta@pmcs.com>
Reviewed-by: NShane Seymour <shane.seymour@hpe.com>
Reviewed-by: NJohannes Thumshirn <jthushirn@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Added support for PCI EEH (extended error handling).
Signed-off-by: NRaghava Aditya Renukunta <raghavaaditya.renukunta@pmcs.com>
Reviewed-by: NTomas Henzl <thenzl@redhat.com>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

The method to allocate and free FIB's in the present code utilizes
spinlocks. Multiple IO's have to wait on the spinlock to acquire or free
fibs creating a performance bottleneck.

An alternative solution would be to use block layer tags to keep track
of the fibs allocated and freed. To this end aac_fib_alloc_tag was
created to utilize the blk layer tags to plug into the Fib pool.These
functions are used exclusively in the IO path. 8 fibs are reserved for
the use of AIF management software and utilize the previous spinlock
based implementations.
Signed-off-by: NRaghava Aditya Renukunta <RaghavaAditya.Renukunta@pmcs.com>
Reviewed-by: NShane Seymour <shane.seymour@hpe.com>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: NTomas Henzl <thenzl@redhat.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Signed-off-by: NFengguang Wu <fengguang.wu@intel.com>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: NMahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Driver blocks ioctls once it received shutdown/suspend request during
suspend/hybernation. This patch unblocks ioctls on resume path.
Reviewed-by: NTomas Henzl <thenzl@redhat.com>
Reviewed-by: NMurthy Bhat <Murthy.Bhat@pmcs.com>
Reviewed-by: NKarthikeya Sunkesula <Karthikeya.Sunkesula@pmcs.com>
Signed-off-by: NMahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
Signed-off-by: NJames Bottomley <JBottomley@Odin.com>

* .suspend() and .resume() routines implemented in the driver
* aac_release_resources() initiates firmware shutdown
* aac_acquire_resources re-initializes the host interface
Reviewed-by: NTomas Henzl <thenzl@redhat.com>
Reviewed-by: NMurthy Bhat <Murthy.Bhat@pmcs.com>
Reviewed-by: NKarthikeya Sunkesula <Karthikeya.Sunkesula@pmcs.com>
Signed-off-by: NMahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
Signed-off-by: NJames Bottomley <JBottomley@Odin.com>

Signed-off-by: NMahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
Reviewed-by: NHannes Reinecke <hare@suse.de>
Reviewed-by: NMurthy Bhat <Murthy.Bhat@pmcs.com>
Signed-off-by: NJames Bottomley <JBottomley@Odin.com>

Signed-off-by: NMahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
Reviewed-by: NHannes Reinecke <hare@suse.de>
Reviewed-by: NMurthy Bhat <Murthy.Bhat@pmcs.com>
Signed-off-by: NJames Bottomley <JBottomley@Odin.com>