summaryrefslogtreecommitdiff
path: root/drivers/scsi/mpi3mr
AgeCommit message (Collapse)AuthorFilesLines
2022-07-19scsi: mpi3mr: Delete a stray tabDan Carpenter1-1/+1
This code is indented one more tab than it should be. Link: https://lore.kernel.org/r/YtVCFshEJNC7ELid@kili Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-07-19scsi: mpi3mr: Unlock on error pathDan Carpenter1-1/+2
There is some clean up necessary before returning. Smatch complains: drivers/scsi/mpi3mr/mpi3mr_fw.c:4786 mpi3mr_soft_reset_handler() warn: inconsistent returns '&mrioc->reset_mutex'. Locked on : 4730 Unlocked on: 4786 Link: https://lore.kernel.org/r/YtVCEsxMU8buuMjP@kili Fixes: f10af057325c ("scsi: mpi3mr: Resource Based Metering") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-07-19scsi: mpi3mr: Reduce VD queue depth on detecting throttlingSreekanth Reddy3-0/+136
Reduce the VD queue depth on detecting the throttling condition. [mkp: incorporate fix for pointer cast issue reported by the test robot and Guenter Roeck] Link: https://lore.kernel.org/r/20220708195020.8323-3-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-07-19scsi: mpi3mr: Resource Based MeteringSreekanth Reddy3-10/+280
Update driver to track cumulative pending large data size at the controller level and at the throttle group level. When one of the values meet or exceed the controller's firmware-determined high threshold value, then the driver will divert future selective I/O to the firmware. Once both controller level and at the throttle group level cumulative pending large data size reach controller's firmware determined low threshold value, then the driver will stop diverting I/Os to the firmware. Link: https://lore.kernel.org/r/20220708195020.8323-2-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-07-07scsi: mpi3mr: Increase cmd_per_lun to 128Sreekanth Reddy1-1/+1
Increase cmd_per_lun to 128. Link: https://lore.kernel.org/r/20220628074848.5036-3-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-07-07scsi: mpi3mr: Enable shared host tagsetSreekanth Reddy1-0/+2
Enable shared host tagset to make sure that total outstanding I/O count can not exceed controller's can_queue setting. Link: https://lore.kernel.org/r/20220628074848.5036-2-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-06-02scsi: mpi3mr: Fix kernel-docJiapeng Chong1-1/+1
Fix the following W=1 kernel warnings: drivers/scsi/mpi3mr/mpi3mr_app.c:1706: warning: expecting prototype for adapter_state_show(). Prototype was for adp_state_show() instead. Link: https://lore.kernel.org/r/20220525093514.55467-1-jiapeng.chong@linux.alibaba.com Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-06-02scsi: mpi3mr: Rework mrioc->bsg_device model to fix warningsSumit Saxena2-27/+23
During driver unload, mrioc->bsg_device reference count becomes negative. Also, as reported in [1], the driver's bsg_device model had few more bugs. Fix all these up. [1] https://marc.info/?l=linux-scsi&m=165183971411991&w=2 Link: https://lore.kernel.org/r/20220526170157.58274-1-sumit.saxena@broadcom.com Fixes: 4268fa751365 ("scsi: mpi3mr: Add bsg device support") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Tested-by: Tomas Henzl <thenzl@redhat.com> Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-20scsi: mpi3mr: Add target device related sysfs attributesSreekanth Reddy3-0/+122
Add sysfs attributes for exposing target device details such as SAS address, firmware device handle, and persistent ID for the controller-attached devices and RAID volumes. Link: https://lore.kernel.org/r/20220517115310.13062-3-sreekanth.reddy@broadcom.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-20scsi: mpi3mr: Add shost related sysfs attributesSreekanth Reddy1-2/+141
Add shost related sysfs attributes to display the controller's firmware version, queue depth, number of requests, and number of reply queues. Also add an attribute to set & get the logging_level. Link: https://lore.kernel.org/r/20220517115310.13062-2-sreekanth.reddy@broadcom.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-20scsi: mpi3mr: Return error if dma_alloc_coherent() failsDan Carpenter1-2/+6
Return -ENOMEM instead of success if dma_alloc_coherent() fails. Link: https://lore.kernel.org/r/YnOmMGHqCOtUCYQ1@kili Fixes: 43ca11005098 ("scsi: mpi3mr: Add support for PEL commands") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-17scsi: mpi3mr: Fix a NULL vs IS_ERR() bug in mpi3mr_bsg_init()Dan Carpenter1-1/+1
The bsg_setup_queue() function does not return NULL. It returns error pointers. Fix the check accordingly. Link: https://lore.kernel.org/r/YnUf7RQl+A3tigWh@kili Fixes: 4268fa751365 ("scsi: mpi3mr: Add bsg device support") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-11scsi: mpi3mr: Return I/Os to an unrecoverable HBA with DID_ERRORSreekanth Reddy1-0/+6
Complete all new I/O requests issued to an unrecoverable controller with DID_ERROR status instead of returning the I/O requests with SCSI_MLQUEUE_HOST_BUSY. This will prevent the infinite retries of the new I/Os when a controller is in an unrecoverable state. Link: https://lore.kernel.org/r/20220505184808.24049-1-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-11scsi: mpi3mr: Hidden drives not removed during soft resetSreekanth Reddy1-3/+5
If any drive is missing during reset, the driver checks whether the device is exposed to the OS. If it is, then it removes the device from the OS and its own internal list. For hidden devices, even if they are found as missing during reset, the driver is not removing them from its internal list. Modify driver to remove hidden devices from the driver's target device list if they are missing during soft reset. Link: https://lore.kernel.org/r/20220505184808.24049-2-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-11scsi: mpi3mr: Increase I/O timeout value to 60sSreekanth Reddy2-0/+7
Set each SCSI device's default I/O timeout and default error handling I/O timeout to 60s. Link: https://lore.kernel.org/r/20220505184808.24049-3-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-03scsi: mpi3mr: Update driver version to 8.0.0.69.0Sumit Saxena1-2/+2
Link: https://lore.kernel.org/r/20220429211641.642010-9-sumit.saxena@broadcom.com Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-03scsi: mpi3mr: Add support for NVMe passthroughSumit Saxena2-3/+370
Add support for management applications to send an MPI3 Encapsulated NVMe passthru command to the NVMe devices attached to an Avenger controller. Since the NVMe drives are exposed as SCSI devices by the controller, the standard NVMe applications cannot be used to interact with the drives and the command sets supported are also limited by the controller firmware. Special handling is required for MPI3 Encapsulated NVMe passthru commands for PRP/SGL setup in the commands. Link: https://lore.kernel.org/r/20220429211641.642010-8-sumit.saxena@broadcom.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-03scsi: mpi3mr: Expose adapter state to sysfsSumit Saxena3-1/+48
Link: https://lore.kernel.org/r/20220429211641.642010-7-sumit.saxena@broadcom.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-03scsi: mpi3mr: Add support for PEL commandsSumit Saxena4-1/+592
Implement driver support for management applications to enable persistent event log (PEL) notifications. Upon receipt of events, the driver will increment a sysfs variable named event_counter. The management application will poll for event_counter value changes and signal the application about events. Link: https://lore.kernel.org/r/20220429211641.642010-6-sumit.saxena@broadcom.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-03scsi: mpi3mr: Add support for MPT commandsSumit Saxena4-3/+574
There are certain management commands which require firmware intervention. These commands are termed MPT commands. Add support for them. Link: https://lore.kernel.org/r/20220429211641.642010-5-sumit.saxena@broadcom.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-03scsi: mpi3mr: Move data structures/definitions from MPI headers to uapi headerSumit Saxena4-100/+2
This patch moves the data structures/definitions which are used by userspace applications from MPI headers to uapi/scsi/scsi_bsg_mpi3mr.h Link: https://lore.kernel.org/r/20220429211641.642010-4-sumit.saxena@broadcom.com Reported by: Stephen Rothwell <sfr@canb.auug.org.au> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-03scsi: mpi3mr: Add support for driver commandsSumit Saxena6-22/+430
There are certain bsg commands which need to be completed by the driver without involving firmware. These requests are termed driver commands. Add support for these. Link: https://lore.kernel.org/r/20220429211641.642010-3-sumit.saxena@broadcom.com Reported by: Stephen Rothwell <sfr@canb.auug.org.au> Reported-by: kernel test robot <lkp@intel.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-03scsi: mpi3mr: Add bsg device supportSumit Saxena5-0/+129
Create bsg device per controller for controller management purposes. bsg device nodes will be named /dev/bsg/mpi3mrctl0, /dev/bsg/mpi3mrctl1, etc. Link: https://lore.kernel.org/r/20220429211641.642010-2-sumit.saxena@broadcom.com Reported-by: kernel test robot <lkp@intel.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-03-25Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds9-134/+233
Pull SCSI updates from James Bottomley: "This series consists of the usual driver updates (qla2xxx, pm8001, libsas, smartpqi, scsi_debug, lpfc, iscsi, mpi3mr) plus minor updates and bug fixes. The high blast radius core update is the removal of write same, which affects block and several non-SCSI devices. The other big change, which is more local, is the removal of the SCSI pointer" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (281 commits) scsi: scsi_ioctl: Drop needless assignment in sg_io() scsi: bsg: Drop needless assignment in scsi_bsg_sg_io_fn() scsi: lpfc: Copyright updates for 14.2.0.0 patches scsi: lpfc: Update lpfc version to 14.2.0.0 scsi: lpfc: SLI path split: Refactor BSG paths scsi: lpfc: SLI path split: Refactor Abort paths scsi: lpfc: SLI path split: Refactor SCSI paths scsi: lpfc: SLI path split: Refactor CT paths scsi: lpfc: SLI path split: Refactor misc ELS paths scsi: lpfc: SLI path split: Refactor VMID paths scsi: lpfc: SLI path split: Refactor FDISC paths scsi: lpfc: SLI path split: Refactor LS_RJT paths scsi: lpfc: SLI path split: Refactor LS_ACC paths scsi: lpfc: SLI path split: Refactor the RSCN/SCR/RDF/EDC/FARPR paths scsi: lpfc: SLI path split: Refactor PLOGI/PRLI/ADISC/LOGO paths scsi: lpfc: SLI path split: Refactor base ELS paths and the FLOGI path scsi: lpfc: SLI path split: Introduce lpfc_prep_wqe scsi: lpfc: SLI path split: Refactor fast and slow paths to native SLI4 scsi: lpfc: SLI path split: Refactor lpfc_iocbq scsi: lpfc: Use kcalloc() ...
2022-02-23scsi: mpi3mr: Fix flushing !WQ_MEM_RECLAIM events warningSreekanth Reddy1-1/+1
Fix the following warning by not allocating driver's event handling worker queue with WQ_MEM_RECLAIM flag enabled: workqueue: WQ_MEM_RECLAIM mpi3mr_fwevt_worker [mpi3mr] is flushing !WQ_MEM_RECLAIM events Link: https://lore.kernel.org/r/20220218180515.27455-1-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-02-17treewide: Replace zero-length arrays with flexible-array membersGustavo A. R. Silva1-1/+1
There is a regular need in the kernel to provide a way to declare having a dynamically sized set of trailing elements in a structure. Kernel code should always use “flexible array members”[1] for these cases. The older style of one-element or zero-length arrays should no longer be used[2]. This code was transformed with the help of Coccinelle: (next-20220214$ spatch --jobs $(getconf _NPROCESSORS_ONLN) --sp-file script.cocci --include-headers --dir . > output.patch) @@ identifier S, member, array; type T1, T2; @@ struct S { ... T1 member; T2 array[ - 0 ]; }; UAPI and wireless changes were intentionally excluded from this patch and will be sent out separately. [1] https://en.wikipedia.org/wiki/Flexible_array_member [2] https://www.kernel.org/doc/html/v5.16/process/deprecated.html#zero-length-and-one-element-arrays Link: https://github.com/KSPP/linux/issues/78 Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
2022-02-12scsi: mpi3mr: Bump driver version to 8.0.0.68.0Sreekanth Reddy1-2/+2
Bump mpi3mr driver version to 8.0.0.68.0. Link: https://lore.kernel.org/r/20220210095817.22828-10-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-02-12scsi: mpi3mr: Fix memory leaksSreekanth Reddy1-1/+1
Fix memory leaks related to operational reply queue's memory segments which are not getting freed while unloading the driver. Link: https://lore.kernel.org/r/20220210095817.22828-9-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-02-12scsi: mpi3mr: Update the copyright yearSreekanth Reddy4-4/+4
Update the copyright year to 2017-2022. Link: https://lore.kernel.org/r/20220210095817.22828-8-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-02-12scsi: mpi3mr: Fix reporting of actual data transfer sizeSreekanth Reddy1-0/+2
The driver is missing to set the residual size while completing an I/O. Ensure proper data transfer size is reported to the kernel on I/O completion based on the transfer length reported by the firmware. Link: https://lore.kernel.org/r/20220210095817.22828-7-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-02-12scsi: mpi3mr: Fix cmnd getting marked as in use foreverSreekanth Reddy1-2/+14
When a driver command which requires the driver to issue a follow up command using the same command frame is outstanding and a soft reset operation occurs, then that driver command frame is getting marked as in use permanently and won't be reused again. Clear the driver command frames while flushing out the outstanding commands and avoid issuing any new requests using these command frames while soft reset is going on. Link: https://lore.kernel.org/r/20220210095817.22828-6-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-02-12scsi: mpi3mr: Fix hibernation issueSreekanth Reddy1-1/+1
Hibernation operation fails when it is issued for second time. This is because the driver is trying to release the IOC's PCI resources after setting power state to D3. Set the IOC's power state to D3 only after releasing the IOC's PCI resources. Link: https://lore.kernel.org/r/20220210095817.22828-5-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-02-12scsi: mpi3mr: Update MPI3 headersSreekanth Reddy7-101/+116
Update MPI3 headers. Link: https://lore.kernel.org/r/20220210095817.22828-4-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-02-12scsi: mpi3mr: Fix printing of pending I/O countSreekanth Reddy1-1/+1
Print proper pending I/O count after issuing target reset TM operation. Link: https://lore.kernel.org/r/20220210095817.22828-3-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-02-12scsi: mpi3mr: Fix deadlock while canceling the fw eventSreekanth Reddy3-21/+91
During controller reset, the driver tries to flush all the pending firmware event works from worker queue that are queued prior to the reset. However, if any work is waiting for device addition/removal operation to be completed at the SML, then a deadlock is observed. This is due to the controller reset waiting for the device addition/removal to be completed and the device/addition removal is waiting for the controller reset to be completed. To limit this deadlock, continue with the controller reset handling without canceling the work which is waiting for device addition/removal operation to complete at SML. Link: https://lore.kernel.org/r/20220210095817.22828-2-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-01-05scsi: mpi3mr: Fix formatting problems in some kernel-doc commentsYang Li1-3/+2
Remove some warnings found by running scripts/kernel-doc, which is caused by using 'make W=1'. drivers/scsi/mpi3mr/mpi3mr_fw.c:2188: warning: Function parameter or member 'reason_code' not described in 'mpi3mr_check_rh_fault_ioc' drivers/scsi/mpi3mr/mpi3mr_fw.c:3650: warning: Excess function parameter 'init_type' description in 'mpi3mr_init_ioc' drivers/scsi/mpi3mr/mpi3mr_fw.c:4177: warning: bad line Link: https://lore.kernel.org/r/20211231082350.19315-1-yang.lee@linux.alibaba.com Signed-off-by: Yang Li <yang.lee@linux.alibaba.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-01-05scsi: mpi3mr: Fix some spelling mistakesColin Ian King1-3/+3
There are some spelling mistakes in some literal strings. Fix them. Link: https://lore.kernel.org/r/20211224175240.1348942-1-colin.i.king@gmail.com Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-23scsi: mpi3mr: Bump driver version to 8.0.0.61.0Sreekanth Reddy1-2/+2
Update the driver version to newer version format i.e. 8.0.0.61.0. Link: https://lore.kernel.org/r/20211220141159.16117-26-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-23scsi: mpi3mr: Fixes around reply request queuesSreekanth Reddy2-2/+5
Set reply queue depth of 1K for B0 and 4K for A0. While freeing the segmented request queues use the actual queue depth that is used while creating them. Link: https://lore.kernel.org/r/20211220141159.16117-25-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-23scsi: mpi3mr: Enhanced Task Management Support Reply handlingSreekanth Reddy2-38/+185
Enhance driver to consider MPI3_IOCSTATUS_SCSI_IOC_TERMINATED as a success for TMs issued by it and check the pending I/Os to decide the success or failure of the task management requests instead of just considering the MPI3_IOCSTATUS_SCSI_IOC_TERMINATED as a failure of the task management request. Link: https://lore.kernel.org/r/20211220141159.16117-24-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-23scsi: mpi3mr: Use TM response codes from MPI3 headersSreekanth Reddy2-34/+27
Remove locally defined TM response codes and use codes from MPI3 headers. Link: https://lore.kernel.org/r/20211220141159.16117-23-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-23scsi: mpi3mr: Add io_uring interface support in I/O-polled modeSreekanth Reddy3-38/+210
Add support for the io_uring interface in I/O-polled mode. This feature is disabled in the driver by default. To enable the feature, a module parameter "poll_queues" has to be set with the desired number of polling queues. When the feature is enabled, the driver reserves a certain number of operational queue pairs for the poll_queues either from the available queue pairs or creates additional queue pairs based on the operational queue availability. The Polling queues will have corresponding IRQ and ISR functions as similar to default queues. However, the IRQ line is disabled by the driver for poll_queues. Link: https://lore.kernel.org/r/20211220141159.16117-22-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-23scsi: mpi3mr: Print cable mngnt and temp threshold eventsSreekanth Reddy2-3/+73
Print cable management & temperature threshold event data. Use vendor id & device id macro definitions from MPI3 headers. Link: https://lore.kernel.org/r/20211220141159.16117-21-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-23scsi: mpi3mr: Support Prepare for Reset eventSreekanth Reddy3-33/+96
The IOC sends a Prepare for Reset Event to the host to prepare for a Soft Reset. This event data has two reason codes: 1. Start - The host is expected to gracefully quiesce all I/O within approximately 1 second. 2. Abort - The IOC is requesting to abort a previous Prepare for Reset Event request. Normal I/O may be resumed. Link: https://lore.kernel.org/r/20211220141159.16117-20-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-23scsi: mpi3mr: Add Event acknowledgment logicSreekanth Reddy3-12/+224
Add Event acknowledgment logic. Link: https://lore.kernel.org/r/20211220141159.16117-19-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-23scsi: mpi3mr: Gracefully handle online FW update operationSreekanth Reddy2-18/+92
Enhance driver to gracefully handle discrepancies in certain key data sizes between firmware update operations as mentioned below: - The driver displays an error message and marks the controller as unrecoverable if the firmware reports ReplyFrameSize that is greater than the current ReplyFrameSize. - If the firmware reports ReplyFrameSize greater than the current ReplyFrameSize then the driver uses the current ReplyFrameSize while copying the reply messages. - The driver displays an error message and marks the controller as unrecoverable if the firmware reports MaxOperationalReplyQueues less than the currently allocated operational reply queues count. - If the firmware reports MaxOperationalReplyQueues that is greater than the currently allocated operational reply queue count then the driver ignores the new increased value and uses the previously allocated number of operational queues only. - If the firmware reports MaxDevHandle greater than the previously used MaxDevHandle value after a reset then the driver re-allocates the 'device remove pending bitmap' buffer with the newer size using krealloc(). Link: https://lore.kernel.org/r/20211220141159.16117-18-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-23scsi: mpi3mr: Detect async reset that occurred in firmwareSreekanth Reddy3-163/+120
Detect asynchronous reset that occurred in the firmware by polling for reset history bit of IOC status register is set and if that bit is set, then the driver waits for the controller to become ready and then re-initializes the controller. Also reduce the time driver is waiting for the controller to acknowledge the reset action after issuing a specific reset action to the controller. The wait time is reduced from 510 seconds to 30 seconds. If the controller didn't acknowledge a specific reset action within the time interval then the driver marks the controller as unrecoverable instead of retrying two more times prior to giving up. Link: https://lore.kernel.org/r/20211220141159.16117-17-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-23scsi: mpi3mr: Add IOC reinit functionSreekanth Reddy1-1/+115
Add IOC reinitialization function. Link: https://lore.kernel.org/r/20211220141159.16117-16-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-23scsi: mpi3mr: Handle offline FW activation in graceful mannerSreekanth Reddy3-128/+120
Currently the driver marks the controller as unrecoverable if there is an asynchronous reset or fault during the initialization, reinitialization post reset, and OS resume. Enhance driver to retry the initialization, re-initialization, and resume sequences for a maximum of 3 times if the controller became faulty or asynchronously reset due to a firmware activation during the initialization sequence. Link: https://lore.kernel.org/r/20211220141159.16117-15-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-12-23scsi: mpi3mr: Code refactor of IOC init - part2Sreekanth Reddy1-78/+89
Move the IOC initialization's bring up logic to mpi3mr_bring_ioc_ready() routine. Link: https://lore.kernel.org/r/20211220141159.16117-14-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
generated by cgit v1.2.3 (git 2.39.0) at 2024-08-09 08:53:40 +0300