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path: root/drivers/scsi/smartpqi/smartpqi_sis.c
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2023-05-08scsi: smartpqi: Update copyright to 2023Don Brace1-1/+1
Update copyright to current year. Reviewed-by: Scott Benesh <scott.benesh@microchip.com> Reviewed-by: Mike McGowen <mike.mcgowen@microchip.com> Reviewed-by: Kevin Barnett <kevin.barnett@microchip.com> Signed-off-by: Don Brace <don.brace@microchip.com> Link: https://lore.kernel.org/r/20230428153712.297638-12-don.brace@microchip.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-07-14scsi: smartpqi: Update copyright to current yearDon Brace1-1/+1
Update copyright to current year. Link: https://lore.kernel.org/r/165730608177.177165.13184715486635363193.stgit@brunhilda Reviewed-by: Scott Benesh <scott.benesh@microchip.com> Reviewed-by: Scott Teel <scott.teel@microchip.com> Reviewed-by: Kevin Barnett <kevin.barnett@microchip.com> Signed-off-by: Don Brace <don.brace@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-07-14scsi: smartpqi: Add ctrl ready timeout module parameterKevin Barnett1-1/+3
Allow user to override the default driver timeout for controller ready. There are some rare configurations which require the driver to wait longer than the normal 3 minutes for the controller to complete its bootup sequence and be ready to accept commands from the driver. The module parameter is: ctrl_ready_timeout= { 0 | 30-1800 } and specifies the timeout in seconds for the driver to wait for controller ready. The valid range is 0 or 30-1800. The default value is 0, which causes the driver to use a timeout of 180 seconds (3 minutes). Link: https://lore.kernel.org/r/165730607666.177165.9221211345284471213.stgit@brunhilda Reviewed-by: Scott Teel <scott.teel@microchip.com> Reviewed-by: Mike McGowen <mike.mcgowen@microchip.com> Signed-off-by: Kevin Barnett <kevin.barnett@microchip.com> Signed-off-by: Don Brace <don.brace@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-07-14scsi: smartpqi: Fix PCI control linkdown system hangSagar Biradar1-1/+1
Fail all outstanding requests after a PCI linkdown. Block access to device SCSI attributes during the following conditions: "Cable pull" is called PQI_CTRL_SURPRISE_REMOVAL. "PCIe Link Down" is called PQI_CTRL_GRACEFUL_REMOVAL. Block access to device SCSI attributes during and in rare instances when the controller goes offline. Either outstanding requests or the access of SCSI attributes post linkdown can lead to a hang. Post linkdown, driver does not fail the outstanding requests leading to long wait time before all the IOs eventually fail. Also access of the SCSI attributes by host applications can lead to a system hang. Link: https://lore.kernel.org/r/165730603578.177165.4699352086827187263.stgit@brunhilda Reviewed-by: Scott Benesh <scott.benesh@microchip.com> Reviewed-by: Scott Teel <scott.teel@microchip.com> Reviewed-by: Mike McGowen <mike.mcgowen@microchip.com> Reviewed-by: Kevin Barnett <kevin.barnett@microchip.com> Signed-off-by: Sagar Biradar <sagar.biradar@microchip.com> Signed-off-by: Don Brace <don.brace@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-07-14scsi: smartpqi: Close write read holesMike McGowen1-0/+3
Insert a minimum 1 millisecond delay after writing to a register before reading from it. SIS and PQI registers that can be both written to and read from can return stale data if read from too soon after having been written to. There is no read/write ordering or hazard detection on the inbound path to the MSGU from the PCIe bus, therefore reads could pass writes. Link: https://lore.kernel.org/r/165730602555.177165.11181012469428348394.stgit@brunhilda Reviewed-by: Scott Teel <scott.teel@microchip.com> Signed-off-by: Mike McGowen <mike.mcgowen@microchip.com> Co-developed-by: Kevin Barnett <kevin.barnett@microchip.com> Signed-off-by: Kevin Barnett <kevin.barnett@microchip.com> Signed-off-by: Don Brace <don.brace@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-02-08scsi: smartpqi: Fix BUILD_BUG_ON() statementsMike McGowen1-1/+1
Add calls to the functions at the beginning driver initialization. The BUILD_BUG_ON() statements that are currently in functions named verify_structures() in the modules smartpqi_init.c and smartpqi_sis.c do not work as currently implemented. Link: https://lore.kernel.org/r/164375214355.440833.13129778749209816497.stgit@brunhilda.pdev.net Reviewed-by: Kevin Barnett <kevin.barnett@microchip.com> Reviewed-by: Scott Teel <scott.teel@microchip.com> Reviewed-by: Scott Benesh <scott.benesh@microchip.com> Signed-off-by: Mike McGowen <Mike.McGowen@microchip.com> Signed-off-by: Don Brace <don.brace@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-02-08scsi: smartpqi: Resolve delay issue with PQI_HZ valueBalsundar P1-4/+4
Change PQI_HZ to HZ. PQI_HZ macro was set to 1000 when HZ value is less than 1000. By default, PQI_HZ will result into a delay of 10 seconds(for kernel, which has HZ = 100). So in this case when firmware raises an event, rescan worker will be scheduled after a delay of (10 x PQI_HZ) = 100 seconds instead of 10 seconds. Also driver uses PQI_HZ at many instances, which might result in some other issues with respect to delay. Link: https://lore.kernel.org/r/164375210825.440833.15510172447583227486.stgit@brunhilda.pdev.net Reviewed-by: Kevin Barnett <kevin.barnett@microchip.com> Reviewed-by: Mike McGowen <mike.mcgowen@microchip.com> Reviewed-by: Scott Benesh <scott.benesh@microchip.com> Reviewed-by: Scott Teel <scott.teel@microchip.com> Signed-off-by: Balsundar P <balsundar.p@microchip.com> Signed-off-by: Don Brace <don.brace@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-05scsi: smartpqi: Capture controller reason codesMurthy Bhat1-3/+6
In some rare cases, the driver can halt the controller. Add a reason code describing why the controller was halted. Store this reason code in a controller register to aid in debugging the issue. Link: https://lore.kernel.org/r/20210928235442.201875-4-don.brace@microchip.com Reviewed-by: Scott Benesh <scott.benesh@microchip.com> Reviewed-by: Scott Teel <scott.teel@microchip.com> Reviewed-by: Mike McGowen <mike.mcgowen@microchip.com> Acked-by: John Donnelly <john.p.donnelly@oracle.com> Signed-off-by: Murthy Bhat <Murthy.Bhat@microchip.com> Signed-off-by: Don Brace <don.brace@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-05scsi: smartpqi: Add controller handshake during kdumpMahesh Rajashekhara1-0/+51
Correct kdump hangs when controller is locked up. There are occasions when a controller reboot (controller soft reset) is issued when a controller firmware crash dump is in progress. This leads to incomplete controller firmware crash dump: - When the controller crash dump is in progress, and a kdump is initiated, the driver issues inbound doorbell reset to bring back the controller in SIS mode. - If the controller is in locked up state, the inbound doorbell reset does not work causing controller initialization failures. This results in the driver hanging waiting for SIS mode. To avoid an incomplete controller crash dump, add in a controller crash dump handshake: - Controller will indicate start and end of the controller crash dump by setting some register bits. - Driver will look these bits when a kdump is initiated. If a controller crash dump is in progress, the driver will wait for the controller crash dump to complete before issuing the controller soft reset then complete driver initialization. Link: https://lore.kernel.org/r/20210928235442.201875-3-don.brace@microchip.com Reviewed-by: Scott Benesh <scott.benesh@microchip.com> Reviewed-by: Scott Teel <scott.teel@microchip.com> Reviewed-by: Mike McGowen <mike.mcgowen@microchip.com> Acked-by: John Donnelly <john.p.donnelly@oracle.com> Signed-off-by: Mahesh Rajashekhara <mahesh.rajashekhara@microchip.com> Signed-off-by: Don Brace <don.brace@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-07-20scsi: smartpqi: Update copyright noticesKevin Barnett1-2/+2
Updated copyright notices and company name strings to reflect Microchip ownership. Link: https://lore.kernel.org/r/20210714182847.50360-3-don.brace@microchip.com Reviewed-by: Mike McGowen <mike.mcgowen@microchip.com> Reviewed-by: Scott Benesh <scott.benesh@microchip.com> Reviewed-by: Scott Teel <scott.teel@microchip.com> Signed-off-by: Kevin Barnett <kevin.barnett@microchip.com> Signed-off-by: Don Brace <don.brace@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-06scsi: smartpqi: Align code with oob driverKevin Barnett1-2/+2
Reduce differences between out-of-box driver and kernel.org driver. No functional changes. Link: https://lore.kernel.org/r/161549375094.25025.9268879575316758510.stgit@brunhilda Reviewed-by: Scott Benesh <scott.benesh@microchip.com> Reviewed-by: Mike McGowen <mike.mcgowen@microchip.com> Reviewed-by: Scott Teel <scott.teel@microchip.com> Signed-off-by: Kevin Barnett <kevin.barnett@microchip.com> Signed-off-by: Don Brace <don.brace@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-04-06scsi: smartpqi: Add support for new product idsKevin Barnett1-0/+5
Add support for newer hardware by adding in a product identifier. This identifier can then be used to check for the hardware generation. Link: https://lore.kernel.org/r/161549370966.25025.2968242206975557607.stgit@brunhilda Reviewed-by: Scott Benesh <scott.benesh@microchip.com> Reviewed-by: Mike McGowen <mike.mcgowen@microchip.com> Reviewed-by: Scott Teel <scott.teel@microchip.com> Reviewed-by: Martin Wilck <mwilck@suse.com> Signed-off-by: Kevin Barnett <kevin.barnett@microchip.com> Signed-off-by: Don Brace <don.brace@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-09-03scsi: smartpqi: Update copyrightDon Brace1-1/+1
Update driver copyright. Link: https://lore.kernel.org/r/159864896224.13630.9798419111015060967.stgit@brunhilda Reviewed-by: Scott Teel <scott.teel@microsemi.com> Reviewed-by: Scott Benesh <scott.benesh@microsemi.com> Signed-off-by: Don Brace <don.brace@microsemi.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-18scsi: smartpqi: add spdxDon Brace1-9/+1
Reviewed-by: David Carroll <david.carroll@microsemi.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>
2019-03-18scsi: smartpqi: update copyrightDon Brace1-2/+3
Reviewed-by: Gerry Morong <gerry.morong@microsemi.com> Reviewed-by: Scott Benesh <scott.benesh@microsemi.com> Reviewed-by: Scott Teel <scott.teel@microsemi.com> Reviewed-by: David Carroll <david.carroll@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>
2018-12-20scsi: smartpqi: add ofa supportMahesh Rajashekhara1-3/+10
- when OFA event occurs, driver will stop traffic to RAID/HBA path. Driver waits for all the outstanding requests to complete. - Driver sends OFA event acknowledgment to firmware. - Driver will wait until the new firmware is up and running. - Driver will free up the resources. - Driver calls SIS/PQI initialization and rescans the device list. - Driver will resume the traffic to RAID/HBA path. Reviewed-by: Murthy Bhat <murthy.bhat@microsemi.com> Signed-off-by: Mahesh Rajashekhara <mahesh.rajashekhara@microsemi.com> Signed-off-by: Don Brace <don.brace@microsemi.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-12-20scsi: smartpqi: increase fw status register read timeoutMahesh Rajashekhara1-1/+1
Problem: - during the driver initialization, driver will poll fw for KERNEL_UP in a 30 seconds timeout. - if the firmware is not ready after 30 seconds, driver will not be loaded. Fix: - change timeout from 30 seconds to 3 minutes. Reported-by: Feng Li <lifeng1519@gmail.com> Reviewed-by: Ajish Koshy <ajish.koshy@microsemi.com> Reviewed-by: Murthy Bhat <Murthy.Bhat@microsemi.com> Reviewed-by: Dave Carroll <david.carroll@microsemi.com> Reviewed-by: Kevin Barnett <kevin.barnett@microsemi.com> Signed-off-by: Mahesh Rajashekhara <mahesh.rajashekhara@microsemi.com> Signed-off-by: Don Brace <don.brace@microsemi.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-18scsi: smartpqi: fully convert to the generic DMA APIChristoph Hellwig1-6/+5
The driver is currently using an odd mix of legacy PCI DMA API and generic DMA API calls, switch it over to the generic API entirely. Signed-off-by: Christoph Hellwig <hch@lst.de> Tested-by: Don Brace <don.brace@microchip.com> Acked-by: Don Brace <don.brace@microchip.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-11scsi: smartpqi: cleanup doorbell register usage.Kevin Barnett1-94/+11
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>
2017-08-11scsi: smartpqi: add pqi reset quiesce supportKevin Barnett1-2/+28
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>
2017-06-13scsi: smartpqi: update copyrightKevin Barnett1-1/+1
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>
2017-06-13scsi: smartpqi: cleanup messagesKevin Barnett1-1/+2
- 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>
2017-06-13scsi: smartpqi: eliminate redundant error messagesKevin Barnett1-1/+4
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>
2017-06-13scsi: smartpqi: add heartbeat checkKevin Barnett1-0/+4
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>
2017-06-13scsi: smartpqi: add suspend and resume supportKevin Barnett1-2/+73
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>
2017-06-13scsi: smartpqi: ensure controller is in SIS mode at initKevin Barnett1-0/+6
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>
2017-06-13scsi: smartpqi: add in controller checkpoint for controller lockups.Kevin Barnett1-0/+7
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>
2016-09-02scsi: smartpqi: add kdump supportKevin Barnett1-0/+10
Reviewed-by: Scott Teel <scott.teel@microsemi.com> Reviewed-by: Scott Benesh <scott.benesh@microsemi.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Tomas Henzl <thenzl@redhat.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>
2016-08-12smartpqi: initial commit of Microsemi smartpqi driverKevin Barnett1-0/+394
This initial commit contains Microsemi's smartpqi module. [mkp: Minor tweaks to apply to 4.9/scsi-queue] Reviewed-by: Scott Benesh <scott.benesh@microsemi.com> Reviewed-by: Kevin Barnett <kevin.barnett@microsemi.com> Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com> Signed-off-by: Don Brace <don.brace@microsemi.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Ewan D. Milne <emilne@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
generated by cgit v1.2.3 (git 2.39.0) at 2025-09-24 12:49:09 +0300