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path: root/drivers/scsi/mpi3mr/mpi3mr_os.c
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2022-02-11scsi: mpi3mr: Fix hibernation issueSreekanth Reddy
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>
2022-02-11scsi: mpi3mr: Update MPI3 headersSreekanth Reddy
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>
2022-02-11scsi: mpi3mr: Fix printing of pending I/O countSreekanth Reddy
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>
2022-02-11scsi: mpi3mr: Fix deadlock while canceling the fw eventSreekanth Reddy
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>
2021-12-23scsi: mpi3mr: Enhanced Task Management Support Reply handlingSreekanth Reddy
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 Reddy
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 Reddy
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 Reddy
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 Reddy
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 Reddy
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: Detect async reset that occurred in firmwareSreekanth Reddy
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: Handle offline FW activation in graceful mannerSreekanth Reddy
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: Handle unaligned PLL in unmap cmndsSreekanth Reddy
The following special handling is needed for UNMAP commands issued to NVMe drives: - On B0 boards, if the parameter list length is greater than 24 and not a 16-byte multiple, then truncate the parameter list length to a 16-byte multiple. - On A0 boards, if the parameter list length is greater than block descriptor data length + 8, then truncate the parameter list length to block descriptor data length + 8 value. Link: https://lore.kernel.org/r/20211220141159.16117-10-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: Increase internal cmnds timeout to 60sSreekanth Reddy
- Increase internal command timeout to 60 seconds. - Enable 16 device removal handshake processing in parallel in the device removal handshake infrastructure. Link: https://lore.kernel.org/r/20211220141159.16117-9-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: Do access status validation before adding devicesSreekanth Reddy
Add validation for various access statuses prior to exposing attached target device to the operating system. Link: https://lore.kernel.org/r/20211220141159.16117-8-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 support for PCIe Managed Switch SES deviceSreekanth Reddy
The SAS4 Controller firmware exposes the SES devices in Managed PCIe Switch as a PCIe Device Type SCSI Device (MPI3_DEVICE0_PCIE_DEVICE_INFO_TYPE_SCSI_DEVICE). Driver is enhanced to handle this device type by: - Exposing the device to the upper layers and - Not updating any hardware sectors & virtual boundary settings as these settings are needed only for NVMe devices. Link: https://lore.kernel.org/r/20211220141159.16117-7-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: Update MPI3 headers - part1Sreekanth Reddy
Update MPI3 headers. Link: https://lore.kernel.org/r/20211220141159.16117-5-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: Don't reset IOC if cmnds flush with reset statusSreekanth Reddy
Don't issue the soft reset if internal commands are flushed out with reset status. Soft reset needs to be issued only if commands are really timed out. Link: https://lore.kernel.org/r/20211220141159.16117-4-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-11-05Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds
Pull SCSI updates from James Bottomley: "This consists of the usual driver updates (ufs, smartpqi, lpfc, target, megaraid_sas, hisi_sas, qla2xxx) and minor updates and bug fixes. Notable core changes are the removal of scsi->tag which caused some churn in obsolete drivers and a sweep through all drivers to call scsi_done() directly instead of scsi->done() which removes a pointer indirection from the hot path and a move to register core sysfs files earlier, which means they're available to KOBJ_ADD processing, which necessitates switching all drivers to using attribute groups" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (279 commits) scsi: lpfc: Update lpfc version to 14.0.0.3 scsi: lpfc: Allow fabric node recovery if recovery is in progress before devloss scsi: lpfc: Fix link down processing to address NULL pointer dereference scsi: lpfc: Allow PLOGI retry if previous PLOGI was aborted scsi: lpfc: Fix use-after-free in lpfc_unreg_rpi() routine scsi: lpfc: Correct sysfs reporting of loop support after SFP status change scsi: lpfc: Wait for successful restart of SLI3 adapter during host sg_reset scsi: lpfc: Revert LOG_TRACE_EVENT back to LOG_INIT prior to driver_resource_setup() scsi: ufs: ufshcd-pltfrm: Fix memory leak due to probe defer scsi: ufs: mediatek: Avoid sched_clock() misuse scsi: mpt3sas: Make mpt3sas_dev_attrs static scsi: scsi_transport_sas: Add 22.5 Gbps link rate definitions scsi: target: core: Stop using bdevname() scsi: aha1542: Use memcpy_{from,to}_bvec() scsi: sr: Add error handling support for add_disk() scsi: sd: Add error handling support for add_disk() scsi: target: Perform ALUA group changes in one step scsi: target: Replace lun_tg_pt_gp_lock with rcu in I/O path scsi: target: Fix alua_tg_pt_gps_count tracking scsi: target: Fix ordered tag handling ...
2021-10-16scsi: mpi3mr: Fix duplicate device entries when scanning through sysfsSreekanth Reddy
When scanning devices through the 'scan' attribute in sysfs, the user will observe duplicate device entries in lsscsi command output. Set the shost's max_channel to zero to avoid this. Link: https://lore.kernel.org/r/20211014055425.30719-1-sreekanth.reddy@broadcom.com Fixes: 824a156633df ("scsi: mpi3mr: Base driver code") Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-16scsi: mpi3mr: Call scsi_done() directlyBart Van Assche
Conditional statements are faster than indirect calls. Hence call scsi_done() directly. Link: https://lore.kernel.org/r/20211007202923.2174984-52-bvanassche@acm.org Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-08-24scsi: mpi3mr: Set up IRQs in resume pathKashyap Desai
Driver is not setting up IRQs in the resume path. As a result, hibernation path is broken and controller will not be operational after system is resumed. Set up IRQs to handle the hibernation case. Link: https://lore.kernel.org/r/20210818081755.1274470-1-kashyap.desai@broadcom.com Cc: sathya.prakash@broadcom.com Cc: thenzl@redhat.com Reported-by: Marco Patalano <mpatalan@redhat.com> Tested-by: Marco Patalano <mpatalan@redhat.com> Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-08-12scsi: mpi3mr: Use the proper SCSI midlayer interfaces for PIMartin K. Petersen
Use the SCSI midlayer interfaces to query protection interval, reference tag, and per-command DIX flags Link: https://lore.kernel.org/r/20210806040023.5355-4-martin.petersen@oracle.com Cc: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Cc: Kashyap Desai <kashyap.desai@broadcom.com> Acked-by: Kashyap Desai <kashyap.desai@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-08-11scsi: mpi3mr: Use scsi_cmd_to_rq() instead of scsi_cmnd.requestBart Van Assche
Prepare for removal of the request pointer by using scsi_cmd_to_rq() instead. This patch does not change any functionality. Link: https://lore.kernel.org/r/20210809230355.8186-30-bvanassche@acm.org Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-29scsi: mpi3mr: Fix warnings reported by smatchSreekanth Reddy
Fix the following warning reported by static analysis tool smatch: smatch warnings: drivers/scsi/mpi3mr/mpi3mr_os.c:873 mpi3mr_update_tgtdev() error: we previously assumed 'mrioc->shost' could be null (see line 870 Link: https://lore.kernel.org/r/20210629141153.3158-1-sreekanth.reddy@broadcom.com Reported-by: kernel test robot <lkp@intel.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-18scsi: mpi3mr: Make some symbols staticYang Yingliang
Fix the following warnings: drivers/scsi/mpi3mr/mpi3mr_os.c:24:5: warning: symbol 'prot_mask' was not declared. Should it be static? drivers/scsi/mpi3mr/mpi3mr_os.c:28:5: warning: symbol 'prot_guard_mask' was not declared. Should it be static? drivers/scsi/mpi3mr/mpi3mr_os.c:31:5: warning: symbol 'logging_level' was not declared. Should it be static? Link: https://lore.kernel.org/r/20210604071407.1360742-1-yangyingliang@huawei.com Reported-by: Hulk Robot <hulkci@huawei.com> Acked-by: Kashyap Desai <kashyap.desai@broadcom.com> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-09scsi: mpi3mr: Fix a double freeTomas Henzl
Fix a double free, scsi_tgt_priv_data will be freed in mpi3mr_target_destroy() so remove the kfree() from mpi3mr_target_alloc(). I've also removed few unneeded initialisations. Link: https://lore.kernel.org/r/20210608145712.16386-1-thenzl@redhat.com Acked-by: Kashyap Desai <kashyap.desai@broadcom.com> Signed-off-by: Tomas Henzl <thenzl@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-07scsi: mpi3mr: Fix fall-through warning for ClangGustavo A. R. Silva
In preparation to enable -Wimplicit-fallthrough for Clang, fix a fall-through warning by explicitly adding a break statement instead of just letting the code fall through to the next case. Link: https://github.com/KSPP/linux/issues/115 Link: https://lore.kernel.org/r/20210604023530.GA180997@embeddedor Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-02Merge branch '5.14/scsi-result' into 5.14/scsi-stagingMartin K. Petersen
Include Hannes' SCSI command result rework in the staging branch. [mkp: remove DRIVER_SENSE from mpi3mr] Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-02scsi: mpi3mr: Add event handling debug printsKashyap Desai
Link: https://lore.kernel.org/r/20210520152545.2710479-25-kashyap.desai@broadcom.com Cc: sathya.prakash@broadcom.com Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-02scsi: mpi3mr: Add EEDP DIF DIX supportKashyap Desai
Link: https://lore.kernel.org/r/20210520152545.2710479-24-kashyap.desai@broadcom.com Cc: sathya.prakash@broadcom.com Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-02scsi: mpi3mr: Add support for DSN secure firmware checkKashyap Desai
Read PCI_EXT_CAP_ID_DSN to query security status. The driver will throw a warning message when a non-secure type controller is detected. The purpose of this interface is to avoid interacting with any firmware which is not secured/signed by Broadcom. Any tampering on firmware component will be detected by hardware and it will be communicated to the driver to avoid any further interaction with that component. Link: https://lore.kernel.org/r/20210520152545.2710479-23-kashyap.desai@broadcom.com Cc: sathya.prakash@broadcom.com Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-02scsi: mpi3mr: Add support for PM suspend and resumeKashyap Desai
Link: https://lore.kernel.org/r/20210520152545.2710479-22-kashyap.desai@broadcom.com Cc: sathya.prakash@broadcom.com Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-02scsi: mpi3mr: Wait for pending I/O completions upon detection of VD I/O timeoutKashyap Desai
Wait for host I/O completion (default 180 seconds) if I/O timeout is detected on VDs. Link: https://lore.kernel.org/r/20210520152545.2710479-21-kashyap.desai@broadcom.com Cc: sathya.prakash@broadcom.com Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-02scsi: mpi3mr: Print pending host I/Os for debuggingKashyap Desai
Link: https://lore.kernel.org/r/20210520152545.2710479-20-kashyap.desai@broadcom.com Cc: sathya.prakash@broadcom.com Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-02scsi: mpi3mr: Hardware workaround for UNMAP commands to NVMe drivesKashyap Desai
The controller hardware can not handle certain UNMAP commands for NVMe drives. Add support in the driver for checking those commands and handle them appropriately. Link: https://lore.kernel.org/r/20210520152545.2710479-17-kashyap.desai@broadcom.com Cc: sathya.prakash@broadcom.com Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-02scsi: mpi3mr: Allow certain commands during pci-remove hookKashyap Desai
Instead of driver returning DID_NO_CONNECT during driver unload allow SSU and Sync Cache commands to be sent to the controller to flush any cached data from the drive. Link: https://lore.kernel.org/r/20210520152545.2710479-16-kashyap.desai@broadcom.com Cc: sathya.prakash@broadcom.com Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-02scsi: mpi3mr: Add change queue depth supportKashyap Desai
Link: https://lore.kernel.org/r/20210520152545.2710479-15-kashyap.desai@broadcom.com Cc: sathya.prakash@broadcom.com Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-02scsi: mpi3mr: Implement SCSI error handler hooksKashyap Desai
Link: https://lore.kernel.org/r/20210520152545.2710479-14-kashyap.desai@broadcom.com Cc: sathya.prakash@broadcom.com Cc: hare@suse.de Cc: thenzl@redhat.com Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-02scsi: mpi3mr: Add bios_param SCSI host template hookKashyap Desai
Link: https://lore.kernel.org/r/20210520152545.2710479-13-kashyap.desai@broadcom.com Cc: sathya.prakash@broadcom.com Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-02scsi: mpi3mr: Print IOC info for debuggingKashyap Desai
Link: https://lore.kernel.org/r/20210520152545.2710479-12-kashyap.desai@broadcom.com Cc: sathya.prakash@broadcom.com Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-02scsi: mpi3mr: Add support for recovering controllerKashyap Desai
Detection of firmware fault or any kind of unresponsiveness in the controller (any admin command which times out) results in resetting the controller. The primary reset mechanisms used are either soft reset or diag fault reset. A reset is performed if the host sets the ResetAction field in the HostDiagnostic register to either 001b (soft reset) or 007b (diag fault reset). After successfully resetting the controller the driver reinitializes the controller by going through start of the day initialization procedure. Pending I/Os during the reset are returned back to the SCSI midlayer for retry. Link: https://lore.kernel.org/r/20210520152545.2710479-10-kashyap.desai@broadcom.com Cc: sathya.prakash@broadcom.co Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-02scsi: mpi3mr: Additional event handlingKashyap Desai
Implement support for handling the following MPI events: - MPI3_EVENT_SAS_BROADCAST_PRIMITIVE - MPI3_EVENT_CABLE_MGMT - MPI3_EVENT_ENERGY_PACK_CHANGE Link: https://lore.kernel.org/r/20210520152545.2710479-9-kashyap.desai@broadcom.com Cc: sathya.prakash@broadcom.com Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-02scsi: mpi3mr: Add support for PCIe device event handlingKashyap Desai
Implement support for the following PCIe-related MPI events: - MPI3_EVENT_PCIE_TOPOLOGY_CHANGE_LIST - MPI3_EVENT_PCIE_ENUMERATION Link: https://lore.kernel.org/r/20210520152545.2710479-8-kashyap.desai@broadcom.com Cc: sathya.prakash@broadcom.com Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-02scsi: mpi3mr: Add support for device add/remove event handlingKashyap Desai
Firmware can report various MPI Events. Enable support for processing the following events related to device addition/removal to the driver: - MPI3_EVENT_DEVICE_ADDED - MPI3_EVENT_DEVICE_INFO_CHANGED - MPI3_EVENT_DEVICE_STATUS_CHANGE - MPI3_EVENT_ENCL_DEVICE_STATUS_CHANGE - MPI3_EVENT_SAS_TOPOLOGY_CHANGE_LIST - MPI3_EVENT_SAS_DISCOVERY - MPI3_EVENT_SAS_DEVICE_DISCOVERY_ERROR Link: https://lore.kernel.org/r/20210520152545.2710479-7-kashyap.desai@broadcom.com Cc: sathya.prakash@broadcom.com Reported-by: kernel test robot <lkp@intel.com> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-02scsi: mpi3mr: Add support for internal watchdog threadKashyap Desai
The watchdog thread is the driver's internal thread which does a few things such as detecting firmware faults, resetting the controller, performing timestamp sync, etc. Link: https://lore.kernel.org/r/20210520152545.2710479-6-kashyap.desai@broadcom.com Cc: sathya.prakash@broadcom.com Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-02scsi: mpi3mr: Add support for queue command processingKashyap Desai
Send Port Enable Request to FW for Device Discovery. As part of port enable completion driver calls scan_start and scan_finished hooks. SCSI layer references like sdev, starget, etc. are added but actual device discovery will be supported once driver adds complete event process handling. Link: https://lore.kernel.org/r/20210520152545.2710479-5-kashyap.desai@broadcom.com Cc: sathya.prakash@broadcom.com Cc: hare@suse.de Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-02scsi: mpi3mr: Create operational request and reply queue pairKashyap Desai
Create operational request and reply queue pair. The MPI3 transport interface consists of an Administrative Request Queue, an Administrative Reply Queue, and Operational Messaging Queues. The Operational Messaging Queues are the primary communication mechanism between the host and the I/O Controller (IOC). Request messages, allocated in host memory, identify I/O operations to be performed by the IOC. These operations are queued on an Operational Request Queue by the host driver. Reply descriptors track I/O operations as they complete. The IOC queues these completions in an Operational Reply Queue. To fulfil large contiguous memory requirement, driver creates multiple segments and provide the list of segments. Each segment size should be 4K which is a hardware requirement. An element array is contiguous or segmented. A contiguous element array is located in contiguous physical memory. A contiguous element array must be aligned on an element size boundary. An element's physical address within the array may be directly calculated from the base address, the Producer/Consumer index, and the element size. Expected phased identifier bit is used to find out valid entry on reply queue. Driver sets <ephase> bit and IOC inverts the value of this bit on each pass. Link: https://lore.kernel.org/r/20210520152545.2710479-4-kashyap.desai@broadcom.com Cc: sathya.prakash@broadcom.com Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-02scsi: mpi3mr: Base driver codeKashyap Desai
Implement basic pci device driver requirements: Device probing, memory allocation, mapping system registers, allocate irq lines, etc. Source is managed in mainly three different files: - mpi3mr_fw.c: Common code which interacts with underlying fw/hw. - mpi3mr_os.c: Common code which interacts with SCSI midlayer. - mpi3mr_app.c: Common code which interacts with application/ioctl. This is currently work in progress. Link: https://lore.kernel.org/r/20210520152545.2710479-3-kashyap.desai@broadcom.com Cc: sathya.prakash@broadcom.com Cc: bvanassche@acm.org Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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