Whenever some UFS failure occurs the driver prints the UFS
registers in order to help with analysis of the failure.
However this may not be sufficient in some cases, so having
the host controller state as it is represented and managed in
the driver will contribute to analysis efforts.
Added prints of various fields in the hba struct which may be
of interest.
Signed-off-by: NGilad Broner <gbroner@codeaurora.org>
Signed-off-by: NSubhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

UFS driver's load based clock scaling feature scales down the ufs related
clocks in order to allow low power modes of chipsets. UniPro 1.6 supports
maximum gear up to HS-G3 (High Speed Gear3) and some of the chipsets
low power modes may not be allowed in HS-G3 hence this change adds support
to scale gear between HS-G3 and HS-G1 based on same existing load based
clock scaling logic.
Signed-off-by: NSubhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Details printed for each request that is aborted can overload the
target as there can be several requests that are aborted at once.
This change will print full request details only for the first
aborted request since the last link reset, and minimal details
for other subsequent requests.
Signed-off-by: NGilad Broner <gbroner@codeaurora.org>
Signed-off-by: NSubhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

On certain error conditions request abort task itself might fail
when aborting a request. In such case, subsequent request aborts
should skip issuing the abort task as it is expected to fail as well,
and device reset handler will be called next.
Signed-off-by: NGilad Broner <gbroner@codeaurora.org>
Signed-off-by: NSubhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Shifting a dma_addr_t right by 32 bits causes a compile-time warning
when that type is only 32 bit wide:

drivers/scsi/aacraid/src.c: In function 'aac_src_start_adapter':
drivers/scsi/aacraid/src.c:414:29: error: right shift count >= width of type [-Werror=shift-count-overflow]

This changes the driver to use the predefined macros consistently,
including one correct but open-coded upper_32_bits() instance.

Fixes: d1ef4da8 ("scsi: aacraid: added support for init_struct_8")
Fixes: 423400e6 ("scsi: aacraid: Include HBA direct interface")
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: NRaghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

aac_fib_send can return -ve error returns and hence rcode should be
signed. Currently the rcode >= 0 check is always true and -ve errors are
not being checked.

Thanks to Dan Carpenter for spotting my original broken fix to this
issue.
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Reviewed-by: NRaghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Signed-off-by: NChristoph Hellwig <hch@lst.de>
Acked-by: NJack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

They are never called and just dispatch to methods of the same names in
the FC and SRP transport classes that are never implemented.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Reviewed-by: NHannes Reinecke <hare@suse.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Instead define the timeout behavior purely based on the host_template
eh_timed_out method and wire up the existing transport implementations
in the host templates.  This also clears up the confusion that the
transport template method overrides the host template one, so some
drivers have to re-override the transport template one.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Reviewed-by: NHannes Reinecke <hare@suse.com>
Reviewed-by: NTyrel Datwyler <tyreld@linux.vnet.ibm.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

EH_NOT_HANDLED is the default case if no eh_timed_out method is
provided, so there is no need to supply it.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Reviewed-by: NHannes Reinecke <hare@suse.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

These days we can specify an eh_timed_out handler in the host_template,
so don't have a transport_template definition just for it.

[mkp: fixed typo]
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Reviewed-by: NHannes Reinecke <hare@suse.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Update the driver version to 50740
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>

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 ioctl interface to retrieve the host device 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 a new ioctl interface to trigger an IOP or IWBR reset from ioctl.
Primary used by management utility to trigger resets.
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 out task management commands.

[mkp: removed // fibsize... ]
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 for drive hotplug add and removal
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>

Retrieved queue depth from fw and saved it for future use.
Only applicable for HBA1000 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>

This patch adds a new functions that periodically sync the time of host
to the adapter. In addition also informs the adapter that the driver is
alive and kicking. Only applicable to the HBA1000 and SMARTIOC2000.
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>

Reworked aac_command_thread into aac_process_events
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 processes Raw IO read medium errors.
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 enables the driver to actually process the I/O, or srb replies
from adapter. In addition to any HBA1000 or SmartIOC2000 adapter events.
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>

Make sure that the driver processes error conditions even in the fast
response path for response from the adapter.
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>

Moved the READ and WRITE switch cases to the top. Added a  default
case to the switch case and replaced duplicate scsi result value with a
macro.

The idea is that since most of scsi commands we care about performance
wise are read or write, we need to process them first.

Internally the compiler (GCC) converts a switch case into either a jump
table or a bunch of if else conditions, so placing the often used read,
write cases at the top is an effort in optimization.
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 type of each adapter connected
device. Applicable to HBA1000 and SmartIOC2000 products
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>

Added aacraid.h include guard
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>

[mkp: whitespace fixes]
Signed-off-by: NLukas Herbolt <lherbolt@redhat.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Updated driver version to "15.100.00.00"
Signed-off-by: NChaitra P B <chaitra.basappa@broadcom.com>
Signed-off-by: NSuganath Prabu S <suganath-prabu.subramani@broadcom.com>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Due existence of loop in the IO path our HBA will receive heavy IOs and
also as driver is not updating the Reply Post Host Index frequently, So
there will be a high chance that our Firmware unable to find any free
entry in the Reply Post Descriptor Queue (i.e. Queue overflow occurs)
and can observe 0x2100 firmware fault.  So to fix this, we have defined
a thresh hold value. After continuously processing this thresh hold
number of reply descriptors driver will update the Reply Descriptor Host
Index so that this thresh hold number of reply descriptors entries will
be freed and these entries will be available for firmware and we won't
observe this Firmware fault. We have defined this threshold value as
1/3rd of the hba queue depth.
Signed-off-by: NChaitra P B <chaitra.basappa@broadcom.com>
Signed-off-by: NSuganath Prabu S <suganath-prabu.subramani@broadcom.com>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Small glitch/degraded performance in Crusader is improved with SAS
drives by removing unnecessary spinlocks while clearing scsi command in
drivers internal lookup table.
Signed-off-by: NChaitra P B <chaitra.basappa@broadcom.com>
Signed-off-by: NSuganath Prabu S <suganath-prabu.subramani@broadcom.com>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

Driver processes the event MPI26_EVENT_ACTIVE_CABLE_DEGRADED when a
cable is present and is running at a degraded speed (below the SAS3 12
Gb/s rate). Prints added to inform the user that the cable is not
running at optimal speed.
Signed-off-by: NChaitra P B <chaitra.basappa@broadcom.com>
Signed-off-by: NSuganath Prabu S <suganath-prabu.subramani@broadcom.com>
Reviewed-by: NJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>