During sync command processing, if legacy INTx status indicates command
is not completed, sample the MSIx register and check if it indicates
command completion, set controller MSIx enabled flag.
Signed-off-by: Prasad B Munirathnam <prasad.munirathnam@microsemi.com>
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>
Preserve the current MSIX mode value in the OMR before rewriting the OMR
to initiate the IOP or Soft Reset.
Signed-off-by: Prasad B Munirathnam <prasad.munirathnam@microsemi.com>
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>
IOP_RESET takes a long time to complete. If controller is in a state
where we can bring it back with init struct, send a DropIO sync command
instead.
- If controller is faulted perform standard IOP_RESET in aac_srcv_init.
- If controller is not faulted get adapter properties and extended
properties.
- Update the sa_firmware variable and determine if DropIO request is
supported.
- Issue DropIO request, and get the number of outstanding commands.
- If all commands are complete with success (CT_OK), consider IOP_RESET
is complete.
- If any commands timeout, Perform the IOP_RESET.
Signed-off-by: Prasad B Munirathnam <prasad.munirathnam@microsemi.com>
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>
Currently the driver accepts two ways of requesting an initialization
reset on the adapter: by passing aac_reset_devices module parameter,
or the generic kernel parameter reset_devices.
It's working as intended...but if we end up reaching a scsi hang and
the scsi EH mechanism takes place, aacraid performs resets as part of
the scsi error recovery procedure. These EH routines might reinitialize
the device, and if we have provided some of the reset parameters in the
kernel command-line, we again perform an "initialization" reset.
So, to avoid this duplication of resets in case of scsi EH path, this
patch adds a field to aac_dev struct to keep per-adapter track of the
init reset request - once it's done, we set it to false and don't
proactively reset anymore in case of reinitializations.
Signed-off-by: Guilherme G. Piccoli <gpiccoli@linux.vnet.ibm.com>
Reviewed-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Commit 0e9973ed33 ("scsi: aacraid: Add periodic checks to see IOP reset
status") changed the way driver checks if a reset succeeded. Now, after an
IOP reset, aacraid immediately start polling a register to verify the reset
is complete.
This behavior cause regressions on the reset path in PowerPC (at least).
Since the delay after the IOP reset was removed by the aforementioned patch,
the fact driver just starts to read a register instantly after the reset
was issued (by writing in another register) "corrupts" the reset procedure,
which ends up failing all the time.
The issue highly impacted kdump on PowerPC, since on kdump path we
proactively issue a reset in adapter (through the reset_devices kernel
parameter).
This patch (re-)adds a delay right after IOP reset is issued. Empirically
we measured that 3 seconds is enough, but for safety reasons we delay
for 5s (and since it was 30s before, 5s is still a small amount).
For reference, without this patch we observe the following messages
on kdump kernel boot process:
[ 76.294] aacraid 0003:01:00.0: IOP reset failed
[ 76.294] aacraid 0003:01:00.0: ARC Reset attempt failed
[ 86.524] aacraid 0003:01:00.0: adapter kernel panic'd ff.
[ 86.524] aacraid 0003:01:00.0: Controller reset type is 3
[ 86.524] aacraid 0003:01:00.0: Issuing IOP reset
[146.534] aacraid 0003:01:00.0: IOP reset failed
[146.534] aacraid 0003:01:00.0: ARC Reset attempt failed
Fixes: 0e9973ed33 ("scsi: aacraid: Add periodic checks to see IOP reset status")
Cc: stable@vger.kernel.org # v4.13+
Signed-off-by: Guilherme G. Piccoli <gpiccoli@linux.vnet.ibm.com>
Acked-by: Dave 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>
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>
The return status of the adapter check on KERNEL_PANIC is supposed to be
the upper 16 bits of the OMR status register.
Fixes: c421530bf8 (scsi: aacraid: Reorder Adpater status check)
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
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>
Currently the adapter firmware does not save outstanding I/O's log
information when an IOP reset is triggered. This is problematic when
trying to root cause and debug issues.
Fixed by adding sync command to trigger I/O log file save in the adapter
firmware before issuing an IOP reset.
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: David Carroll <David.Carroll@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The driver currently checks the SELF_TEST_FAILED first and then
KERNEL_PANIC next. Under error conditions(boot code failure) both
SELF_TEST_FAILED and KERNEL_PANIC can be set at the same time.
The driver has the capability to reset the controller on an KERNEL_PANIC,
but not on SELF_TEST_FAILED.
Fixed by first checking KERNEL_PANIC and then the others.
Cc: stable@vger.kernel.org
Fixes: e8b12f0fb8 ([SCSI] aacraid: Add new code for PMC-Sierra's SRC base controller family)
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: David Carroll <David.Carroll@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When the SMART family of controller panic (KERNEL_PANIC) , they do not
honor IOP resets. So better to skip it and directly perform a IWBR reset.
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: David Carroll <David.Carroll@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
After controller shutdown, all sync fibs time out due to not knowing
about the switch to INT-x mode
Fixed by replacing aac_src_access_devreg() to aac_set_intx_mode() call.
Cc: stable@vger.kernel.org
Fixes: 495c021767 (aacraid: MSI-x support)
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: David Carroll <David.Carroll@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Replaced camel case with snake case for init supported options.
Suggested-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: David Carroll <David.Carroll@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin 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: d1ef4da848 ("scsi: aacraid: added support for init_struct_8")
Fixes: 423400e64d ("scsi: aacraid: Include HBA direct interface")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Added new copyright messages
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: Dave Carroll <David.Carroll@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Added a new IWBR soft reset type, reworked the IOP reset interface for
a bit.
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: Dave Carroll <David.Carroll@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin 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: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: Dave Carroll <David.Carroll@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Added support to send direct pasthru srb commands from management utilty
to the controller.
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: Dave Carroll <David.Carroll@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin 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: Raghava Aditya Renukunta <raghavaaditya.renukunta@microsemi.com>
Signed-off-by: Dave Carroll <David.Carroll@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin 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: Raghava Aditya Renukunta <raghavaaditya.renukunta@microsemi.com>
Signed-off-by: Dave Carroll <David.Carroll@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
We get 1 warning when building kernel with W=1:
drivers/scsi/aacraid/src.c:616:5: warning: no previous prototype for 'aac_src_select_comm' [-Wmissing-prototypes]
In fact, this function is only used in the file in which it is declared
and don't need a declaration, but can be made static. so this patch
marks this function with 'static'.
Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Dave Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin 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: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The driver utilizes an array of atomic variables to keep track of IO
submissions to each vector. To submit an IO multiple threads iterate
through the array to find a vector which has empty slots to send an
IO. The reading and updating of the variable is not atomic, causing race
conditions when a thread uses a full vector to submit an IO.
Fixed by mapping each FIB to a vector, the submission path then uses
said vector to submit IO thereby removing the possibly of a race
condition.The vector assignment is started from 1 since vector 0 is
reserved for the use of AIF management FIBS.If the number of MSIx
vectors is 1 (MSI or INTx mode) then all the fibs are allocated to
vector 0.
Fixes: 495c0217 "aacraid: MSI-x support"
Cc: stable@vger.kernel.org # v4.1
Signed-off-by: Raghava Aditya Renukunta <raghavaaditya.renukunta@pmcs.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
If writeq() not supported, then do atomic two 32bit write
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Reviewed-by: Murthy Bhat <Murthy.Bhat@pmcs.com>
Reviewed-by: Karthikeya Sunkesula <Karthikeya.Sunkesula@pmcs.com>
Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
This patch fixes the IOP_RESET issue. Sending IOP_RESET command need to wait
for only 10 sec instead of 5 minutes in case of firmware does not response
IOP_RESET command. Disable interrupt before setup interrupt routine to
prevent spurious interrupts.
Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Murthy Bhat <Murthy.Bhat@pmcs.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
It's a NOOP since 2.6.35 and it will be removed one day.
[jejb: remove from missed arm scsi drivers]
Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
One of the customer had reported that the set of raid logical arrays will
become unavailable (I/O offline) after a long hours of IO stress test. The OS
wouldn`t be accessible afterwards and require a hard reset.
This driver patch has a fix for race condition between the doorbell and the
circular buffer. The driver is modified to do an extra read after clearing the
doorbell in case there had been a completion posted during the small timing
window.
With this fix, we ran IO stress for ~13 days. There were no IO failures.
Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This patch adds dual flash firmware support for Series 7 and above controllers.
[thenzl: used ssleep(10) instead udelay]
Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Building src.o for a 32 bit system triggers two GCC warnings:
drivers/scsi/aacraid/src.c: In function ‘aac_src_deliver_message’:
drivers/scsi/aacraid/src.c:410:3: warning: right shift count >= width of type [enabled by default]
drivers/scsi/aacraid/src.c:434:2: warning: right shift count >= width of type [enabled by default]
These warnings are caused by a right shift of 32. Use upper_32_bits() to
suppress them.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Cc: Mahesh Rajashekhara <Mahesh_Rajashekhara@pmc-sierra.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
- Series 7 Async. (performance) mode support added
- New scatter/gather list format for Series 7
- Driver converts s/g list to a firmware suitable list for best performance on
Series 7, this can be disabled with driver parameter "aac_convert_sgl" for
testing purposes
- New container read/write command structure for Series 7
- Fast response support for the SCSI pass-through path added
- Async. status response buffer changes
Signed-off-by: Mahesh Rajashekhara <Mahesh_Rajashekhara@pmc-sierra.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This may not fix all endian issues in this driver, but it does get the
driver working on PowerPC for a PMC SRC card. So it should at least fix
all the problems in the core and in the SRC support.
[jejb: fix >> 32 breakage reported by Fengguang Wu]
Signed-off-by: Ben Collins <bcollins@ubuntu.com>
Acked-by: Achim Leubner <Achim_Leubner@pmc-sierra.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This also stops using the "legacy crap" in Scsi_Host (shost->base is an
unsigned long).
This affected 32-bit systems that have 64-bit resource sizes, causing the
IO address to be truncated.
Signed-off-by: Ben Collins <bcollins@ubuntu.com>
Acked-by: Achim Leubner <Achim_Leubner@pmc-sierra.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
The patch 116046127d "[SCSI] aacraid: Added
Sync.mode to support series 7/8/9 controllers" removed an iounmap call from
aac_src_ioremap. Before that, the iounmap has been called twice with the same
value (dev->base and dev->regs.src.bar0) and the iounmap complained about it
(iounmap: bad address ...).
The proper solution is a change the paremeter from bar0 to bar1.
Fix this by adding a an iounmap(dev->regs.src.bar1) call.
Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Acked-by: Achim Leubner <achim_leubner@pmc-sierra.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Added Sync. mode to support Series 7/8/9 controller families: This is a
compatibility mode for all these controller families. The Async. (Performance)
mode can be changed in the future. First Async. mode version added for Series
7; Controller parameter aac_sync_mode added
Signed-off-by: Mahesh Rajashekhara <aacraid@pmc-sierra.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
It was pointed out by 'make versioncheck' that some includes of
linux/version.h are not needed in drivers/scsi/.
This patch removes them.
Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Added new hardware device 0x28b interface for PMC-Sierra's SRC based
controller family.
- new src.c file for 0x28b specific functions
- new XPORT header required
- sync. command interface: doorbell bits shifted (SRC_ODR_SHIFT, SRC_IDR_SHIFT)
- async. Interface: different inbound queue handling, no outbound I2O
queue available, using doorbell ("PmDoorBellResponseSent") and
response buffer on the host ("host_rrq") for status
- changed AIF (adapter initiated FIBs) interface: "DoorBellAifPending"
bit to inform about pending AIF, "AifRequest" command to read AIF,
"NoMoreAifDataAvailable" to mark the end of the AIFs
Signed-off-by: Mahesh Rajashekhara <aacraid@pmc-sierra.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
