summaryrefslogtreecommitdiff
path: root/drivers/scsi/megaraid/megaraid_sas_fusion.c
AgeCommit message (Collapse)Author
2025-04-08Merge branch '6.15/scsi-queue' into 6.15/scsi-fixesMartin K. Petersen
Pull in remaining fixes from 6.15/scsi-queue. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2025-04-05treewide: Switch/rename to timer_delete[_sync]()Thomas Gleixner
timer_delete[_sync]() replaces del_timer[_sync](). Convert the whole tree over and remove the historical wrapper inlines. Conversion was done with coccinelle plus manual fixups where necessary. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2025-04-03scsi: megaraid_sas: Block zero-length ATA VPD inquiryChandrakanth Patil
A firmware bug was observed where ATA VPD inquiry commands with a zero-length data payload were not handled and failed with a non-standard status code of 0xf0. Avoid sending ATA VPD inquiry commands without data payload by setting the device no_vpd_size flag to 1. In addition, if the firmware returns a status code of 0xf0, set scsi_cmnd->result to CHECK_CONDITION to facilitate proper error handling. Suggested-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20250402193735.5098-1-chandrakanth.patil@broadcom.com Tested-by: Ryan Lahfa <ryan@lahfa.xyz> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2024-08-22scsi: Expand all create*_workqueue() invocationsBart Van Assche
The workqueue maintainer wants to remove the create*_workqueue() macros because these macros always set the WQ_MEM_RECLAIM flag and because these only support literal workqueue names. Hence this patch that replaces the create*_workqueue() invocations with the definition of this macro. The WQ_MEM_RECLAIM flag has been retained because I think that flag is necessary for workqueues created by storage drivers. This patch has been generated by running spatch and git clang-format. spatch has been invoked as follows: spatch --in-place --sp-file expand-create-workqueue.spatch $(git grep -lEw 'create_(freezable_|singlethread_|)workqueue' */scsi */ufs) The contents of the expand-create-workqueue.spatch file is as follows: @@ expression name; @@ -create_workqueue(name) +alloc_workqueue("%s", WQ_MEM_RECLAIM, 1, name) @@ expression name; @@ -create_freezable_workqueue(name) +alloc_workqueue("%s", WQ_FREEZABLE | WQ_UNBOUND | WQ_MEM_RECLAIM, 1, name) @@ expression name; @@ -create_singlethread_workqueue(name) +alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, name) Reviewed-by: Peter Wang <peter.wang@mediatek.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Link: https://lore.kernel.org/r/20240822195944.654691-2-bvanassche@acm.org Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2024-04-11scsi: megaraid_sas: Switch to using ->device_configureChristoph Hellwig
Switch to the ->device_configure method instead of ->slave_configure and update the block limits on the passed in queue_limits instead of using the per-limit accessors. Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20240409143748.980206-12-hch@lst.de Reviewed-by: Damien Le Moal <dlemoal@kernel.org> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-10-13scsi: megaraid_sas: Log message when controller reset is requested but not ↵Chandrakanth patil
issued The driver now includes the print message 'IO is completed, no reset is required' when a reset is requested but not issued. This message is displayed only when pending SCSI IO is completed before issuing the reset. Signed-off-by: Chandrakanth patil <chandrakanth.patil@broadcom.com> Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com> Link: https://lore.kernel.org/r/20231003110021.168862-3-chandrakanth.patil@broadcom.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-03-24scsi: megaraid_sas: Fix crash after a double completionTomas Henzl
When a physical disk is attached directly "without JBOD MAP support" (see megasas_get_tm_devhandle()) then there is no real error handling in the driver. Return FAILED instead of SUCCESS. Fixes: 18365b138508 ("megaraid_sas: Task management support") Signed-off-by: Tomas Henzl <thenzl@redhat.com> Link: https://lore.kernel.org/r/20230324150134.14696-1-thenzl@redhat.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-03-06scsi: megaraid_sas: Add crash dump mode capability bit in MFI capabilitiesChandrakanth Patil
In kdump kernel mode, the driver works in reduced functionality mode with some features disabled such as reduced MSI-X count and RDPQ disabled, etc. However, the firmware is not aware of this mode in some cases, which results in undefined behavior. To address this, the driver informs the firmware about the kdump mode through MPI capabilities bit during driver initialization. This allows firmware to adjust its behavior accordingly. Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com> Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com> Link: https://lore.kernel.org/r/20230302105342.34933-3-chandrakanth.patil@broadcom.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-01-18scsi: megaraid_sas: Add flexible array member for SGLsKees Cook
struct MPI2_RAID_SCSI_IO_REQUEST ends with a single SGL, but expects to copy multiple. Add a flexible array member so the compiler can reason about the size of the memcpy(). This will avoid the run-time false positive warning: memcpy: detected field-spanning write (size 128) of single field "&r1_cmd->io_request->SGL" at drivers/scsi/megaraid/megaraid_sas_fusion.c:3326 (size 16) This change results in no binary output differences. Reported-by: Holger Kiehl <Holger.Kiehl@dwd.de> Link: https://lore.kernel.org/all/88de8faa-56c4-693d-2d3-67152ee72057@diagnostix.dwd.de/ Cc: Kashyap Desai <kashyap.desai@broadcom.com> Cc: Sumit Saxena <sumit.saxena@broadcom.com> Cc: Shivasharan S <shivasharan.srikanteshwara@broadcom.com> Cc: "James E.J. Bottomley" <jejb@linux.ibm.com> Cc: "Martin K. Petersen" <martin.petersen@oracle.com> Cc: megaraidlinux.pdl@broadcom.com Cc: linux-scsi@vger.kernel.org Link: https://lore.kernel.org/r/20230106053153.never.999-kees@kernel.org Signed-off-by: Kees Cook <keescook@chromium.org> Tested-by: Holger Kiehl <Holger.Kiehl@dwd.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-11-26scsi: megaraid_sas: Fix some spelling mistakes in commentYu Zhe
Fix typos in comment. Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Yu Zhe <yuzhe@nfschina.com> Link: https://lore.kernel.org/r/20221125020703.22216-1-yuzhe@nfschina.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-10-07Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds
Pull SCSI updates from James Bottomley: "Updates to the usual drivers (qla2xxx, lpfc, ufs, hisi_sas, mpi3mr, mpt3sas, target). The biggest change (from my biased viewpoint) being that the mpi3mr now attached to the SAS transport class, making it the first fusion type device to do so. Beyond the usual bug fixing and security class reworks, there aren't a huge number of core changes" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (141 commits) scsi: iscsi: iscsi_tcp: Fix null-ptr-deref while calling getpeername() scsi: mpi3mr: Remove unnecessary cast scsi: stex: Properly zero out the passthrough command structure scsi: mpi3mr: Update driver version to 8.2.0.3.0 scsi: mpi3mr: Fix scheduling while atomic type bug scsi: mpi3mr: Scan the devices during resume time scsi: mpi3mr: Free enclosure objects during driver unload scsi: mpi3mr: Handle 0xF003 Fault Code scsi: mpi3mr: Graceful handling of surprise removal of PCIe HBA scsi: mpi3mr: Schedule IRQ kthreads only on non-RT kernels scsi: mpi3mr: Support new power management framework scsi: mpi3mr: Update mpi3 header files scsi: mpt3sas: Revert "scsi: mpt3sas: Fix ioc->base_readl() use" scsi: mpt3sas: Revert "scsi: mpt3sas: Fix writel() use" scsi: wd33c93: Remove dead code related to the long-gone config WD33C93_PIO scsi: core: Add I/O timeout count for SCSI device scsi: qedf: Populate sysfs attributes for vport scsi: pm8001: Replace one-element array with flexible-array member scsi: 3w-xxxx: Replace one-element array with flexible-array member scsi: hptiop: Replace one-element array with flexible-array member in struct hpt_iop_request_ioctl_command() ...
2022-08-31scsi: megaraid_sas: Replace one-element array with flexible-array member in ↵Gustavo A. R. Silva
MR_PD_CFG_SEQ_NUM_SYNC One-element arrays are deprecated, and we are replacing them with flexible array members instead. So, replace one-element array with flexible-array member in struct MR_PD_CFG_SEQ_NUM_SYNC and refactor the rest of the code accordingly. This helps with the ongoing efforts to tighten the FORTIFY_SOURCE routines on memcpy() and help us make progress towards globally enabling -fstrict-flex-arrays [0]. Link: https://github.com/KSPP/linux/issues/79 Link: https://github.com/KSPP/linux/issues/109 Link: Link: https://reviews.llvm.org/D126864 [0] Link: https://lore.kernel.org/r/78e9261591db072b67fcf49f0216d7046a67ca6d.1660592640.git.gustavoars@kernel.org 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>
2022-08-11scsi: megaraid_sas: Fix double kfree()Guixin Liu
When allocating log_to_span fails, kfree(instance->ctrl_context) is called twice. Remove redundant call. Link: https://lore.kernel.org/r/1659424729-46502-1-git-send-email-kanie@linux.alibaba.com Acked-by: Sumit Saxena <sumit.saxena@broadcom.com> Signed-off-by: Guixin Liu <kanie@linux.alibaba.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-08-01scsi: megaraid_sas: Remove redundant variable cmd_typeColin Ian King
The variable cmd_type is assigned a value but it is never read. The variable and the assignment are redundant and can be removed. Cleans up clang scan build warning: drivers/scsi/megaraid/megaraid_sas_fusion.c:3228:10: warning: Although the value stored to 'cmd_type' is used in the enclosing expression, the value is never actually read from 'cmd_type' [deadcode.DeadStores] Link: https://lore.kernel.org/r/20220730124509.148457-1-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>
2022-05-19scsi: megaraid_sas: Remove redundant memset() statementHarshit Mogalapalli
As memset() of scmd->sense_buffer is immediately followed by a memcpy() where scmd->sense_buffer is the destination. The memset() is redundant. Link: https://lore.kernel.org/r/20220505143214.44908-1-harshit.m.mogalapalli@oracle.com Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-03-15scsi: megasas: Clean up some inconsistent indentingYang Li
Eliminate the following smatch warning: drivers/scsi/megaraid/megaraid_sas_fusion.c:5104 megasas_reset_fusion() warn: inconsistent indenting Link: https://lore.kernel.org/r/20220225011605.130927-1-yang.lee@linux.alibaba.com Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Yang Li <yang.lee@linux.alibaba.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-02-22scsi: megasas: Stop using the SCSI pointerBart Van Assche
Set .cmd_size in the SCSI host template instead of using the SCSI pointer from struct scsi_cmnd. This patch prepares for removal of the SCSI pointer from struct scsi_cmnd. Link: https://lore.kernel.org/r/20220218195117.25689-34-bvanassche@acm.org Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-16scsi: megaraid_sas: Call scsi_done() directlyBart Van Assche
Conditional statements are faster than indirect calls. Hence call scsi_done() directly. Link: https://lore.kernel.org/r/20211007202923.2174984-49-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: megaraid_sas: Add helper functions for irq_contextSumit Saxena
Adding helper functions for ISR access and release to improve readability. Link: https://lore.kernel.org/r/20210929124022.24605-3-sumit.saxena@broadcom.com Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-04scsi: megaraid_sas: Fix concurrent access to ISR between IRQ polling and ↵Sumit Saxena
real interrupt IRQ polling thread calls ISR after enable_irq() to handle any missed I/O completion. The atomic flag "in_used" was added to have the synchronization between the IRQ polling thread and the interrupt context. There is a bug around it leading to a race condition. Below is the sequence: - IRQ polling thread accesses ISR, fetches the reply descriptor. - Real interrupt arrives and pre-empts polling thread (enable_irq() is already called). - Interrupt context picks the same reply descriptor as fetched by polling thread, processes it, and exits. - Polling thread resumes and processes the descriptor which is already processed by interrupt thread leads to kernel crash. Setting the "in_used" flag before fetching the reply descriptor ensures synchronized access to ISR. Link: https://www.spinics.net/lists/linux-scsi/msg159440.html Link: https://lore.kernel.org/r/20210929124022.24605-2-sumit.saxena@broadcom.com Fixes: 9bedd36e9146 ("scsi: megaraid_sas: Handle missing interrupts while re-enabling IRQs") Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-08-11scsi: megaraid: 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/20210809230355.8186-29-bvanassche@acm.org Signed-off-by: Bart Van Assche <bvanassche@acm.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: megaraid_sas: Handle missing interrupts while re-enabling IRQsChandrakanth Patil
While reenabling the IRQ after IRQ poll there may be a small window for the firmware to post the replies with interrupts raised. In that case the driver will not see the interrupts which leads to I/O timeout. This issue only happens when there are many I/O completions on a single reply queue. This forces the driver to switch between the interrupt and IRQ context. Make the driver process the reply queue one more time after enabling the IRQ. Link: https://lore.kernel.org/linux-scsi/20201102072746.27410-1-sreekanth.reddy@broadcom.com/ Link: https://lore.kernel.org/r/20210528131307.25683-5-chandrakanth.patil@broadcom.com Cc: Tomas Henzl <thenzl@redhat.com> Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com> Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-02scsi: megaraid_sas: Fix resource leak in case of probe failureChandrakanth Patil
The driver doesn't clean up all the allocated resources properly when scsi_add_host(), megasas_start_aen() function fails during the PCI device probe. Clean up all those resources. Link: https://lore.kernel.org/r/20210528131307.25683-3-chandrakanth.patil@broadcom.com Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com> Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-02scsi: megaraid_sas: Send all non-RW I/Os for TYPE_ENCLOSURE device through ↵Chandrakanth Patil
firmware The driver issues all non-ReadWrite I/Os for TYPE_ENCLOSURE devices through the fast path with invalid dev handle. Fast path in turn directs all the I/Os to the firmware. As firmware stopped handling those I/Os from SAS3.5 generation of controllers (Ventura generation and onwards) this will lead to I/O failures. Switch the driver to issue all the non-ReadWrite I/Os for TYPE_ENCLOSURE devices directly to firmware for SAS3.5 generation of controllers and later. Link: https://lore.kernel.org/r/20210528131307.25683-2-chandrakanth.patil@broadcom.com Cc: <stable@vger.kernel.org> # v5.11+ Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com> Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-05-31scsi: core: Kill DRIVER_SENSEHannes Reinecke
Replace the check for DRIVER_SENSE with a check for scsi_status_is_check_condition(). Audit all callsites to ensure the SAM status is set correctly. For backwards compability move the DRIVER_SENSE definition to sg.h, and update sg, bsg, and scsi_ioctl to set the DRIVER_SENSE driver_status whenever SAM_STAT_CHECK_CONDITION is present. [mkp: fix zeroday srp warning] Link: https://lore.kernel.org/r/20210427083046.31620-10-hare@suse.de Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> fix
2021-03-04scsi: megaraid_sas: mq_poll supportKashyap Desai
Implement mq_poll interface support in megaraid_sas. This feature requires shared host tag support in kernel and driver. The driver can work in non-IRQ mode which means there will not be any MSI-x vector associated for poll_queues. The MegaRAID hardware has a single submission queue and multiple reply queues. However, using the shared host tagset support will enable the driver to simulate multiple hardware queues. Change driver to allocate some extra reply queues which will be marked as poll_queues. These poll_queues will not have associated MSI-x vectors. All I/O completions on these queues will be done through the IOPOLL interface. megaraid_sas with 8 poll_queues and using the io_uring hiprio=1 setting can reach 3.2M IOPS with zero interrupts generated by the hardware. The IOPOLL feature can be enabled using module parameter poll_queues. Link: https://lore.kernel.org/r/20210215074048.19424-3-kashyap.desai@broadcom.com Cc: sumit.saxena@broadcom.com Cc: chandrakanth.patil@broadcom.com Cc: linux-block@vger.kernel.org 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>
2021-03-04scsi: megaraid_sas: Replace sdev_busy with local counterKashyap Desai
Use local tracking of per-sdev outstanding command since sdev_busy in SCSI mid layer is improved for performance reason using sbitmap (earlier it was atomic variable). Link: https://lore.kernel.org/r/20210122023317.687987-11-ming.lei@redhat.com Cc: Omar Sandoval <osandov@fb.com> Cc: Kashyap Desai <kashyap.desai@broadcom.com> Cc: Sumanesh Samanta <sumanesh.samanta@broadcom.com> Cc: Ewan D. Milne <emilne@redhat.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com> Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-01-22scsi: megaraid: Fix ifnullfree.cocci warningskernel test robot
NULL check before vfree is not needed. Generated by: scripts/coccinelle/free/ifnullfree.cocci Link: https://lore.kernel.org/r/alpine.DEB.2.22.394.2012111113060.2669@hadrien Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: kernel test robot <lkp@intel.com> Signed-off-by: Julia Lawall <julia.lawall@inria.fr> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-12-16Revert "Revert "scsi: megaraid_sas: Added support for shared host tagset for ↵Martin K. Petersen
cpuhotplug"" This reverts commit 1a0e1943d8798cb3241fb5edb9a836af1611b60a. Commit b3c6a5997541 ("block: Fix a lockdep complaint triggered by request queue flushing") has been reverted and commit fb01a2932e81 has been introduced in its place. Consequently, it is now safe to reinstate the megaraid_sas tagset changes that led to boot problems in 5.10. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-12-08Revert "scsi: megaraid_sas: Added support for shared host tagset for cpuhotplug"Linus Torvalds
This reverts commit 103fbf8e4020845e4fcf63819288cedb092a3c91. It turns out that it causes long boot-time latencies (to the point of timeouts and failed boots). The cause is the increase in request queues, and a fix for that is queued up for 5.11, but we're reverting this commit that triggered the problem for now. Reported-and-tested-by: John Garry <john.garry@huawei.com> Reported-and-tested-by: Julia Lawall <julia.lawall@inria.fr> Reported-by: Qian Cai <cai@redhat.com> Acked-by: Jens Axboe <axboe@kernel.dk> Acked-by: Martin K. Petersen <martin.petersen@oracle.com> Link: https://lore.kernel.org/linux-scsi/fe3dff7dae4494e5a88caffbb4d877bbf472dceb.camel@redhat.com/ Link: https://lore.kernel.org/lkml/alpine.DEB.2.22.394.2012081813310.2680@hadrien/ Link: https://lore.kernel.org/linux-block/20201203012638.543321-1-ming.lei@redhat.com/ Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-06scsi: megaraid_sas: Added support for shared host tagset for cpuhotplugKashyap Desai
Fusion adapters can steer completions to individual queues, and we now have support for shared host-wide tags. So we can enable multiqueue support for fusion adapters. Once driver enable shared host-wide tags, cpu hotplug feature is also supported as it was enabled using below patchsets - commit bf0beec0607d ("blk-mq: drain I/O when all CPUs in a hctx are offline") Currently driver has provision to disable host-wide tags using "host_tagset_enable" module parameter. Once we do not have any major performance regression using host-wide tags, we will drop the hand-crafted interrupt affinity settings. Performance is also meeting the expecatation - (used both none and mq-deadline scheduler) 24 Drive SSD on Aero with/without this patch can get 3.1M IOPs 3 VDs consist of 8 SAS SSD on Aero with/without this patch can get 3.1M IOPs. Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com> Signed-off-by: Hannes Reinecke <hare@suse.com> Signed-off-by: John Garry <john.garry@huawei.com> Tested-by: Douglas Gilbert <dgilbert@interlog.com> Acked-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-09-08Merge tag 'scsi-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "Eleven fixes, mostly in drivers or minor fixes in driver related infrastructure libraries (target, libfc and libsas). Most of the bugs fixed only show up under rare circumstances, the exception being the endianness problem in qla2xxx which is used as a device on some sparc systems" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: mpt3sas: Don't call disable_irq from IRQ poll handler scsi: megaraid_sas: Don't call disable_irq from process IRQ poll scsi: target: iscsi: Fix hang in iscsit_access_np() when getting tpg->np_login_sem scsi: libsas: Set data_dir as DMA_NONE if libata marks qc as NODATA scsi: target: iscsi: Fix data digest calculation scsi: lpfc: Update lpfc version to 12.8.0.4 scsi: lpfc: Extend the RDF FPIN Registration descriptor for additional events scsi: lpfc: Fix FLOGI/PLOGI receive race condition in pt2pt discovery scsi: lpfc: Fix setting IRQ affinity with an empty CPU mask scsi: qla2xxx: Fix regression on sparc64 scsi: libfc: Fix for double free() scsi: pm8001: Fix memleak in pm8001_exec_internal_task_abort
2020-09-02scsi: megaraid_sas: Don't call disable_irq from process IRQ pollTomas Henzl
disable_irq() might sleep. Replace it with disable_irq_nosync() which is sufficient as irq_poll_scheduled protects against concurrently running complete_cmd_fusion() from megasas_irqpoll() and megasas_isr_fusion(). Link: https://lore.kernel.org/r/20200827165332.8432-1-thenzl@redhat.com Fixes: a6ffd5bf681 scsi: megaraid_sas: Call disable_irq from process IRQ poll Signed-off-by: Tomas Henzl <thenzl@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-08-23treewide: Use fallthrough pseudo-keywordGustavo A. R. Silva
Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary fall-through markings when it is the case. [1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
2020-08-06Merge 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, qla2xxx, tcmu, lpfc, hpsa, zfcp, scsi_debug) and minor bug fixes. We also have a huge docbook fix update like most other subsystems and no major update to the core (the few non trivial updates are either minor fixes or removing an unused feature [scsi_sdb_cache])" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (307 commits) scsi: scsi_transport_srp: Sanitize scsi_target_block/unblock sequences scsi: ufs-mediatek: Apply DELAY_AFTER_LPM quirk to Micron devices scsi: ufs: Introduce device quirk "DELAY_AFTER_LPM" scsi: virtio-scsi: Correctly handle the case where all LUNs are unplugged scsi: scsi_debug: Implement tur_ms_to_ready parameter scsi: scsi_debug: Fix request sense scsi: lpfc: Fix typo in comment for ULP scsi: ufs-mediatek: Prevent LPM operation on undeclared VCC scsi: iscsi: Do not put host in iscsi_set_flashnode_param() scsi: hpsa: Correct ctrl queue depth scsi: target: tcmu: Make TMR notification optional scsi: target: tcmu: Implement tmr_notify callback scsi: target: tcmu: Fix and simplify timeout handling scsi: target: tcmu: Factor out new helper ring_insert_padding scsi: target: tcmu: Do not queue aborted commands scsi: target: tcmu: Use priv pointer in se_cmd scsi: target: Add tmr_notify backend function scsi: target: Modify core_tmr_abort_task() scsi: target: iscsi: Fix inconsistent debug message scsi: target: iscsi: Fix login error when receiving ...
2020-07-15scsi: megaraid_sas: Remove undefined ENABLE_IRQ_POLL macroChandrakanth Patil
As the ENABLE_IRQ_POLL macro is undefined, the check for ENABLE_IRQ_POLL macro in ISR will always be false. This leads to irq polling being non-functional. Remove ENABLE_IRQ_POLL check from ISR. Link: https://lore.kernel.org/r/20200715120153.20512-1-chandrakanth.patil@broadcom.com Fixes: a6ffd5bf6819 ("scsi: megaraid_sas: Call disable_irq from process IRQ") Cc: <stable@vger.kernel.org> # v5.3+ Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com> Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-08scsi: megaraid: Fix compilation warningsDamien Le Moal
Move function declarations to megaraid_sas.h to avoid warnings such as: warning: no previous prototype for ‘xxx' No functional changes. Link: https://lore.kernel.org/r/20200706123346.451827-1-damien.lemoal@wdc.com Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-07-08scsi: megaraid: Fix kdoc comments formatDamien Le Moal
Fix kernel documentation comments to avoid various warnings when compiling with W=1. No functional changes. Link: https://lore.kernel.org/r/20200706123345.451783-1-damien.lemoal@wdc.com Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-05-11scsi: megaraid_sas: TM command refire leads to controller firmware crashSumit Saxena
When TM command times out, driver invokes the controller reset. Post reset, driver re-fires pended TM commands which leads to firmware crash. Post controller reset, return pended TM commands back to OS. Link: https://lore.kernel.org/r/20200508085242.23406-1-chandrakanth.patil@broadcom.com Cc: stable@vger.kernel.org Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com> Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-05-11scsi: megaraid_sas: Remove IO buffer hole detection logicSumit Saxena
As blk_queue_virt_boundary() API in slave_configure ensures that no IOs will come with holes/gaps. Hence, code logic to detect the holes/gaps in IO buffer is not required. Link: https://lore.kernel.org/r/20200508083838.22778-3-chandrakanth.patil@broadcom.com Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com> Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-04-24scsi: megaraid: Use true, false for bool variablesJason Yan
Fix the following coccicheck warning: drivers/scsi/megaraid/megaraid_sas_fusion.c:4242:6-16: WARNING: Assignment of 0/1 to bool variable drivers/scsi/megaraid/megaraid_sas_fusion.c:4786:1-29: WARNING: Assignment of 0/1 to bool variable drivers/scsi/megaraid/megaraid_sas_fusion.c:4791:1-29: WARNING: Assignment of 0/1 to bool variable drivers/scsi/megaraid/megaraid_sas_fusion.c:4716:1-29: WARNING: Assignment of 0/1 to bool variable drivers/scsi/megaraid/megaraid_sas_fusion.c:4721:1-29: WARNING: Assignment of 0/1 to bool variable Link: https://lore.kernel.org/r/20200421034111.28353-1-yanaijie@huawei.com Acked-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com> Signed-off-by: Jason Yan <yanaijie@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-04-14scsi: megaraid: make some symbols static in megaraid_sas_fusion.cJason Yan
Fix the following sparse warning: drivers/scsi/megaraid/megaraid_sas_fusion.c:180:1: warning: symbol 'megasas_enable_intr_fusion' was not declared. Should it be static? drivers/scsi/megaraid/megaraid_sas_fusion.c:202:1: warning: symbol 'megasas_disable_intr_fusion' was not declared. Should it be static? drivers/scsi/megaraid/megaraid_sas_fusion.c:4233:6: warning: symbol 'megasas_refire_mgmt_cmd' was not declared. Should it be static? Link: https://lore.kernel.org/r/20200407092827.18074-4-yanaijie@huawei.com Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Jason Yan <yanaijie@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-02-12scsi: megaraid_sas: silence a warningTomas Henzl
Add a flag to DMA memory allocation to silence a warning. This driver allocates DMA memory for IO frames. This allocation may exceed MAX_ORDER pages for few megaraid_sas controllers (controllers with very high queue depth). Consequently, the driver has logic to keep reducing the controller queue depth until the DMA memory allocation succeeds. On impacted megaraid_sas controllers there would be multiple DMA allocation failures until driver settled on an allocation that fit. These failed DMA allocation requests caused stack traces in system logs. These were not harmful and this patch silences those warnings/stack traces. [mkp: clarified commit desc] Link: https://lore.kernel.org/r/20200204152413.7107-1-thenzl@redhat.com Signed-off-by: Tomas Henzl <thenzl@redhat.com> Acked-by: Sumit Saxena <sumit.saxena@broadcom.com> Reviewed-by: Lee Duncan <lduncan@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-15scsi: megaraid_sas: Use Block layer API to check SCSI device in-flight IO ↵Anand Lodnoor
requests Remove usage of device_busy counter from driver. Instead of device_busy counter now driver uses 'nr_active' counter of request_queue to get the number of inflight request for a LUN. Link: https://lore.kernel.org/r/1579000882-20246-11-git-send-email-anand.lodnoor@broadcom.com Link : https://patchwork.kernel.org/patch/11249297/ Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com> Signed-off-by: Anand Lodnoor <anand.lodnoor@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-15scsi: megaraid_sas: Limit the number of retries for the IOCTLs causing ↵Anand Lodnoor
firmware fault IOCTLs causing firmware fault may end up in failed controller resets and finally killing the adapter. This patch fixes this problem as stated below: In OCR sequence, driver will attempt refiring pended IOCTLs upto two times. If first two attempts fail, then in third attempt driver will return pended IOCTLs with EBUSY status to application. These changes are done to ensure if any of pended IOCTLs is causing firmware fault and resulting into OCR failure, then in last attempt of OCR driver will refrain firing it to firmware and saving adapter from being killed due to faulty IOCTL. Link: https://lore.kernel.org/r/1579000882-20246-10-git-send-email-anand.lodnoor@broadcom.com Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com> Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com> Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com> Signed-off-by: Anand Lodnoor <anand.lodnoor@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-15scsi: megaraid_sas: Do not initiate OCR if controller is not in ready stateAnand Lodnoor
Driver initiates OCR if a DCMD command times out. But there is a deadlock if the driver attempts to invoke another OCR before the mutex lock (reset_mutex) is released from the previous session of OCR. This patch takes care of the above scenario using new flag MEGASAS_FUSION_OCR_NOT_POSSIBLE to indicate if OCR is possible. Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/1579000882-20246-9-git-send-email-anand.lodnoor@broadcom.com Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com> Signed-off-by: Anand Lodnoor <anand.lodnoor@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-15scsi: megaraid_sas: Do not set HBA Operational if FW is not in operational stateAnand Lodnoor
After issuing a adapter reset, driver blindly used to set adprecovery flag to OPERATIONAL state. Add a check to see if the FW is operational before setting the flag and marking reset adapter successful. Link: https://lore.kernel.org/r/1579000882-20246-7-git-send-email-anand.lodnoor@broadcom.com Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com> Signed-off-by: Anand Lodnoor <anand.lodnoor@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-15scsi: megaraid_sas: Do not kill HBA if JBOD Seqence map or RAID map is disabledAnand Lodnoor
At the time of firmware initialization, if JBOD map or RAID map is not available, driver can function without these features in a limited functionality mode. Link: https://lore.kernel.org/r/1579000882-20246-6-git-send-email-anand.lodnoor@broadcom.com Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com> Signed-off-by: Anand Lodnoor <anand.lodnoor@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-09-21Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds
Pull SCSI updates from James Bottomley: "This is mostly update of the usual drivers: qla2xxx, ufs, smartpqi, lpfc, hisi_sas, qedf, mpt3sas; plus a whole load of minor updates. The only core change this time around is the addition of request batching for virtio. Since batching requires an additional flag to use, it should be invisible to the rest of the drivers" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (264 commits) scsi: hisi_sas: Fix the conflict between device gone and host reset scsi: hisi_sas: Add BIST support for phy loopback scsi: hisi_sas: Add hisi_sas_debugfs_alloc() to centralise allocation scsi: hisi_sas: Remove some unused function arguments scsi: hisi_sas: Remove redundant work declaration scsi: hisi_sas: Remove hisi_sas_hw.slot_complete scsi: hisi_sas: Assign NCQ tag for all NCQ commands scsi: hisi_sas: Update all the registers after suspend and resume scsi: hisi_sas: Retry 3 times TMF IO for SAS disks when init device scsi: hisi_sas: Remove sleep after issue phy reset if sas_smp_phy_control() fails scsi: hisi_sas: Directly return when running I_T_nexus reset if phy disabled scsi: hisi_sas: Use true/false as input parameter of sas_phy_reset() scsi: hisi_sas: add debugfs auto-trigger for internal abort time out scsi: virtio_scsi: unplug LUNs when events missed scsi: scsi_dh_rdac: zero cdb in send_mode_select() scsi: fcoe: fix null-ptr-deref Read in fc_release_transport scsi: ufs-hisi: use devm_platform_ioremap_resource() to simplify code scsi: ufshcd: use devm_platform_ioremap_resource() to simplify code scsi: hisi_sas: use devm_platform_ioremap_resource() to simplify code scsi: ufs: Use kmemdup in ufshcd_read_string_desc() ...
generated by cgit (git 2.34.1) at 2025-07-25 14:06:25 +0000