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path: root/drivers/scsi/aacraid/src.c
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2017-06-12scsi: aacraid: Add reset debugging statementsRaghava Aditya Renukunta
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>
2017-06-12scsi: aacraid: Rework aac_src_restartRaghava Aditya Renukunta
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>
2017-06-12scsi: aacraid: Rework SOFT reset codeRaghava Aditya Renukunta
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>
2017-06-12scsi: aacraid: Add periodic checks to see IOP reset statusRaghava Aditya Renukunta
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>
2017-06-12scsi: aacraid: Rework IOP resetRaghava Aditya Renukunta
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>
2017-06-12scsi: aacraid: Using single reset mask for IOP resetRaghava Aditya Renukunta
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>
2017-03-06scsi: aacraid: Fix typo in blink statusRaghava Aditya Renukunta
The return status of the adapter check on KERNEL_PANIC is supposed to be the upper 16 bits of the OMR status register. Fixes: c421530bf848604e (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>
2017-02-22scsi: aacraid: Save adapter fib log before an IOP resetRaghava Aditya Renukunta
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>
2017-02-22scsi: aacraid: Reorder Adapter status checkRaghava Aditya Renukunta
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: e8b12f0fb835223752 ([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>
2017-02-22scsi: aacraid: Skip IOP reset on controller panic(SMART Family)Raghava Aditya Renukunta
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>
2017-02-22scsi: aacraid: Fix sync fibs time out on controller resetRaghava Aditya Renukunta
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: 495c021767bd78c998 (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>
2017-02-22scsi: aacraid: Fix camel caseRaghava Aditya Renukunta
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>
2017-02-07scsi: aacraid: avoid open-coded upper_32_bitsArnd Bergmann
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: d1ef4da8487f ("scsi: aacraid: added support for init_struct_8") Fixes: 423400e64d37 ("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>
2017-02-03scsi: aacraid: Update copyrightsRaghava Aditya Renukunta
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>
2017-02-03scsi: aacraid: Added new IWBR resetRaghava Aditya Renukunta
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>
2017-02-03scsi: aacraid: Added support to abort cmd and reset lunRaghava Aditya Renukunta
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>
2017-02-03scsi: aacraid: Include HBA direct interfaceRaghava Aditya Renukunta
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>
2017-02-03scsi: aacraid: Added support for response pathRaghava Aditya Renukunta
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>
2017-02-03scsi: aacraid: added support for init_struct_8Raghava Aditya Renukunta
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>
2016-09-09scsi: aacraid: mark aac_src_select_comm() staticBaoyou Xie
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>
2016-04-29aacraid: Log firmware AIF messagesRaghava Aditya Renukunta
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>
2016-02-23aacraid: Fix RRQ overloadRaghava Aditya Renukunta
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>
2015-11-09aacraid: Reset irq affinity hintsMahesh Rajashekhara
Reset irq affinity hints before releasing IRQ. Removed duplicate code of IRQ acquire/release. 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>
2015-11-09aacraid: Enable 64bit write to controller registerMahesh Rajashekhara
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>
2015-11-09aacraid: Change interrupt mode to MSI for Series 6Mahesh Rajashekhara
This change always sets MSI interrupt mode for series-6 controller. 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>
2015-11-09aacraid: Add Power Management supportMahesh Rajashekhara
* .suspend() and .resume() routines implemented in the driver * aac_release_resources() initiates firmware shutdown * aac_acquire_resources re-initializes the host interface 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>
2015-05-25aacraid: aac_src_intr_message() can be statickbuild test robot
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Acked-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com> Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-04-09aacraid: performance improvement changesMahesh Rajashekhara
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>
2015-04-09aacraid: IOP RESET command handling changesMahesh Rajashekhara
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>
2015-04-09aacraid: MSI-x supportMahesh Rajashekhara
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>
2014-03-19[SCSI] remove deprecated IRQF_DISABLED from SCSIMichael Opdenacker
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>
2013-06-26[SCSI] aacraid: Fix for arrays are going offline in the system. System hangsMahesh Rajashekhara
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>
2013-04-10[SCSI] aacraid: Dual firmware image supportMahesh Rajashekhara
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>
2013-02-24[SCSI] aacraid: suppress two GCC warningsPaul Bolle
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>
2012-07-20[SCSI] aacraid: Series 7 Async. (performance) mode supportMahesh Rajashekhara
- 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>
2012-07-20[SCSI] aacraid: Fix endian issues in core and SRC portions of driverBen Collins
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>
2012-07-20[SCSI] aacraid: Use resource_size_t for IO mem pointers and offsetsBen Collins
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>
2012-04-23[SCSI] aacraid: add an iounmap call to aac_src_ioremapTomas Henzl
The patch 116046127d1a3bad2853d02781ad9fee33f05e5a "[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>
2012-02-19[SCSI] aacraid: Added Sync.mode to support series 7/8/9 controllersMahesh Rajashekhara
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>
2011-09-15Remove unneeded version.h includes from drivers/scsi/Jesper Juhl
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>
2011-03-23[SCSI] aacraid: Add new code for PMC-Sierra's SRC based controller familyMahesh Rajashekhara
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>
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