summaryrefslogtreecommitdiff
path: root/drivers/scsi/mpi3mr
AgeCommit message (Collapse)Author
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: Code refactor of IOC init - part2Sreekanth Reddy
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>
2021-12-23scsi: mpi3mr: Code refactor of IOC init - part1Sreekanth Reddy
Separate out reply and sense buffer allocation and initialization into two routines and call only initialization routine while issuing the IOC Init request message. Also move out the event enable logic to a separate function. Link: https://lore.kernel.org/r/20211220141159.16117-13-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: Fault IOC when internal command gets timeoutSreekanth Reddy
Save snapdump and fault the controller with the given reason code if it is already not in the fault or not in asynchronous reset. This ensures that soft reset is issued from the watchdog thread. This will also be used to handle initialization time faults/resets/timeout as in those cases immediate soft reset invocation is not required. Link: https://lore.kernel.org/r/20211220141159.16117-12-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: Display IOC firmware package versionSreekanth Reddy
Display IOC firmware package version by reading component image upload data. Link: https://lore.kernel.org/r/20211220141159.16117-11-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 - part2Sreekanth Reddy
Continued updating MPI3 headers. Link: https://lore.kernel.org/r/20211220141159.16117-6-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>
2021-12-23scsi: mpi3mr: Replace spin_lock() with spin_lock_irqsave()Sreekanth Reddy
Use spin_lock_irqsave() instead of spin_lock() while acquiring reply_free_queue_lock & sbq_lock locks. Link: https://lore.kernel.org/r/20211220141159.16117-3-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 debug APIs based on logging_level bitsSreekanth Reddy
Add debug print functions which will print messages based on logging_level bits enabled. Link: https://lore.kernel.org/r/20211220141159.16117-2-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-11-05Merge 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 ...
2021-10-18scsi: mpi3mr: Use scnprintf() instead of snprintf()Dan Carpenter
I intended to move from snprintf() to scnprintf() in the previous patch but I messed up and did not do that. The result of my bug is that it this function could trigger a WARN() if the buffer is too large. Link: https://lore.kernel.org/r/20211013083005.GA8592@kili Fixes: 76a4f7cc5973 ("scsi: mpi3mr: Clean up mpi3mr_print_ioc_info()") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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>
2021-10-04scsi: mpi3mr: Clean up mpi3mr_print_ioc_info()Dan Carpenter
This function is more complicated than necessary. If we change from scnprintf() to snprintf() that lets us remove the if bytes_wrote < sizeof(protocol) checks. Also, we can use bytes_wrote ? "," : "" to print the comma and remove the separate if statement and the "is_string_nonempty" variable. [mkp: a few formatting cleanups and s/wrote/written/] Link: https://lore.kernel.org/r/20210916132605.GF25094@kili Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> 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>
2021-07-12scsi: mpi3mr: Fix W=1 compilation warningsSreekanth Reddy
Fix for the following W=1 compilation warning: 'strncpy' output may be truncated copying 16 bytes from a string of length 64 Link: https://lore.kernel.org/r/20210707081756.20922-1-sreekanth.reddy@broadcom.com Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> 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>
2021-06-18scsi: mpi3mr: Fix error return code in mpi3mr_init_ioc()Yang Yingliang
Fix to return a negative error code from the error handling case instead of 0 as done elsewhere in this function. Link: https://lore.kernel.org/r/20210603151653.711020-1-yangyingliang@huawei.com Fixes: fb9b04574f14 ("scsi: mpi3mr: Add support for recovering controller") Fixes: 824a156633df ("scsi: mpi3mr: Base driver code") 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>
2021-06-18scsi: mpi3mr: Fix missing unlock on errorYang Yingliang
Goto unlock path before return from function in the error handling case. Link: https://lore.kernel.org/r/20210603152803.717505-1-yangyingliang@huawei.com Fixes: c9566231cfaf ("scsi: mpi3mr: Create operational request and reply queue pair") 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 error handling in mpi3mr_setup_isr()Dan Carpenter
The pci_alloc_irq_vectors_affinity() function returns negative error codes or it returns a number between the minimum vectors (1 in this case) and max_vectors. It won't return zero. Because "i" is a u16 then the error handling won't work. And also if it did work the error code was not set. Really "max_vectors" can be an int as well because we're doing a min_t() on int type. The other change is that it's better to remove unnecessary initialization so that static checkers can warn us if there are ever uninitialized variable bugs introduced in the future. I changed the error code from -1 (-EPERM) if the kmalloc() failed to -ENOMEM. And on success path I changed it from "return retval;" to "return 0;" which shouldn't affect the compiled code but makes it more readable. Link: https://lore.kernel.org/r/YMCJcnmSI4kOIyv/@mwanda Fixes: 824a156633df ("scsi: mpi3mr: Base driver code") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-09scsi: mpi3mr: Delete unnecessary NULL checkDan Carpenter
The "mrioc->intr_info" pointer can't be NULL, but if it could then the second iteration through the loop would Oops. Let's delete the confusing and impossible NULL check. Link: https://lore.kernel.org/r/YMCJKgykDYtyvY44@mwanda Signed-off-by: Dan Carpenter <dan.carpenter@oracle.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: Complete support for soft resetKashyap Desai
Unlock the host diagnostic register, write the specific reset type to that and wait for reset acknowledgment from the controller. If the reset is not successful retry for the predefined number of times Link: https://lore.kernel.org/r/20210520152545.2710479-19-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 threaded ISRKashyap Desai
Register driver for threaded interrupts. By default the driver will attempt I/O completion from interrupt context (primary handler). Since the driver tracks per reply queue outstanding I/Os, it will schedule threaded ISR if there are any outstanding I/Os expected on that particular reply queue. Threaded ISR (secondary handler) will loop for I/O completion as long as there are outstanding I/Os (speculative method using same per reply queue outstanding counter) or it has completed some X amount of commands (something like budget). Link: https://lore.kernel.org/r/20210520152545.2710479-18-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: 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 timestamp sync with firmwareKashyap Desai
This operation requests that the IOC update the TimeStamp. When the I/O Unit is powered on it sets the TimeStamp field value to 0x0000_0000_0000_0000 and increments the current value every millisecond. A host driver sets the TimeStamp field to the current time by using an IOCInit request. The TimeStamp field is periodically updated by the host driver. Link: https://lore.kernel.org/r/20210520152545.2710479-11-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 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>
generated by cgit v1.2.3 (git 2.46.0) at 2025-07-31 14:18:47 +0000