- 25 Aug, 2023 22 commits
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Karan Tilak Kumar authored
sgreset is issued with a SCSI command pointer. The device reset code assumes that it was issued on a hardware queue, and calls block multiqueue layer. However, the assumption is broken, and there is no hardware queue associated with the sgreset, and this leads to a crash due to a null pointer exception. Fix the code to use the max_tag_id as a tag which does not overlap with the other tags issued by mid layer. Tested by running FC traffic for a few minutes, and by issuing sgreset on the device in parallel. Without the fix, the crash is observed right away. With this fix, no crash is observed. Reviewed-by:
Sesidhar Baddela <sebaddel@cisco.com> Tested-by:
Karan Tilak Kumar <kartilak@cisco.com> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com>
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Martin K. Petersen authored
Nilesh Javali <njavali@marvell.com> says: Martin, Please apply the qla2xxx driver miscellaneous features and bug fixes to the scsi tree at your earliest convenience. Link: https://lore.kernel.org/r/20230821130045.34850-1-njavali@marvell.comSigned-off-by:
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Nilesh Javali authored
Sparse warning reported, drivers/scsi/qla2xxx/qla_iocb.c: In function 'qla24xx_build_scsi_type_6_iocbs': >> drivers/scsi/qla2xxx/qla_iocb.c:594:29: warning: variable 'ha' set but not used [-Wunused-but-set-variable] 594 | struct qla_hw_data *ha; | ^~ Remove unused variables 'vha' and 'ha'. Reported-by:kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202308230757.VKMIztAB-lkp@intel.com/Signed-off-by:
Nilesh Javali <njavali@marvell.com> Link: https://lore.kernel.org/r/20230825070017.46066-1-njavali@marvell.comSigned-off-by:
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Nilesh Javali authored
The kernel robot reported below build error, >> ERROR: modpost: "nvme_fc_rcv_ls_req" [drivers/scsi/qla2xxx/qla2xxx.ko] undefined! Use CONFIG_NVME_FC enabled check to fix the build error. Reported-by:
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Martin K. Petersen authored
Don Brace <don.brace@microchip.com> says: cat smartpqi_6.6_cover_letter These patches are based on Martin Petersen's 6.6/scsi-queue tree https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git 6.6/scsi-queue The biggest functional change to smartpqi is the addition of an abort handler. Some customers were complaining about I/O stalls to all devices when only one device is reset. Adding an abort handler helps to prevent I/O stalls to all devices. All of the reset of the patches are small changes to logging messages, MACRO and variable name changes, and one minor change for LUN assignments. This set of changes consists of: * smartpqi-add-abort-handler When a device reset occurs, the SML pauses I/O to all devices presented by a controller instance causing some performance issues. To only affect device with a problematic request, we added an abort handler. The abort handler is implemented by using a device reset, but I/O to the other devices is no longer affected. * smartpqi-refactor-rename-MACRO-to-clarify-purpose The MACRO SOP_RC_INCORRECT_LOGICAL_UNIT was used to check for a condition where a TMF was sent an incorrect LUN. We renamed this MACRO to SOP_TMF_INCORRECT_LOGICAL_UNIT for clarity. * smartpqi-refactor-rename-pciinfo-to-pci_info Change the pciinfo variable to pci_info to make more readable code. No functional changes. * smartpqi-simplify-lun_number-assignment We simplified the conditional expression used to populate LUN numbers for requests. * smartpqi-enhance-shutdown-notification Clarify controller cache flush errors. We added in more precise information to the cache flush informational message. No functional changes. * smartpqi-enhance-controller-offline-notification The driver can offline a controller for multiple reasons. We added a description of why these rare offline actions are taken. And a function to provide the specific details of the shutdown. * smartpqi-enhance-error-messages We added host:bus:target:lun to messages emitted in our reset/abort handlers. No functional changes. * smartpqi-change-driver-version-to-2.1.24-046 Link: https://lore.kernel.org/r/20230824155812.789913-1-don.brace@microchip.comSigned-off-by:
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Don Brace authored
Reviewed-by:
Gerry Morong <gerry.morong@microchip.com> Reviewed-by:
Scott Benesh <scott.benesh@microchip.com> Reviewed-by:
Scott Teel <scott.teel@microchip.com> Reviewed-by:
Mike McGowen <mike.mcgowen@microchip.com> Reviewed-by:
Kevin Barnett <kevin.barnett@microchip.com> Signed-off-by:
Don Brace <don.brace@microchip.com> Link: https://lore.kernel.org/r/20230824155812.789913-9-don.brace@microchip.comSigned-off-by:
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Mahesh Rajashekhara authored
Add more detail to some TMF messages. Reviewed-by:
Mahesh Rajashekhara <Mahesh.Rajashekhara@microchip.com> Signed-off-by:
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David Strahan authored
Add a description for the reason the controller has been taken off-line. Reviewed-by:
David Strahan <David.Strahan@microchip.com> Signed-off-by:
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David Strahan authored
Provide more detailed information about cache flush errors during shutdown. Reviewed-by:
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David Strahan authored
Simplify lun_number assignment. lun_number assignment is only required for non-AIO requests. Reviewed-by:
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Kevin Barnett authored
Make pci device structure names consistent and readable. Reviewed-by:
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Kevin Barnett authored
Rename SOP_RC_INCORRECT_LOGICAL_UNIT to SOP_TMF_INCORRECT_LOGICAL_UNIT to clarify the intended purpose. Reviewed-by:
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Kevin Barnett authored
Implement aborts as resets. Avoid I/O stalls across all devices attached to a controller when device I/O requests time out. Reviewed-by:
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Bart Van Assche authored
Move the sd_pm_ops and sd_template data structures to just above init_sd() such that the number of forward function declarations can be reduced. Signed-off-by:
Bart Van Assche <bvanassche@acm.org> Link: https://lore.kernel.org/r/20230823210628.523244-1-bvanassche@acm.orgSigned-off-by:
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John Meneghini authored
Many tape devices will automatically rewind following a poweron/reset. This can result in data loss as other operations in the driver can write to the tape when the position is unknown. E.g. MTEOM can write a filemark at the beginning of the tape. This patch adds code to detect poweron/reset unit attentions and prevents the driver from writing to the tape when the position could be unknown. Customer reported problem description: We have experienced an issue with the SCSI tape driver (st) which has led to data loss for us on two separate occasions in production, as well as in a third case in which we were able to reproduce the failure in our test environment. The tape device involved is an Amazon Tape Gateway, a virtual tape library (VTL) appliance which presents as a series of iSCSI targets (multiple tape drives and a changer) and is backed by storage in Amazon S3. The problem is a general one and not limited to any particular SCSI transport or tape device, though the nature of both iSCSI and the VTL make data loss somewhat more likely with this combination than with a physical tape drive. The observed behavior occurs when an error causes the VTL tape gateway process (on the appliance) to crash and restart. This interrupts the iSCSI TCP connections and, when it occurs during a write, causes the write to fail with EIO. However, we then find that the virtual tape in question is now completely blank. We raised this issue with AWS support, thinking this must be a bug in the VTL appliance, but that turns out not to be the case. Per AWS support, when the gateway crashes in this manner, its notion of the current tape position is reset to the beginning of the tape. It also sets a unit attention condition, such that the next request results in a CHECK CONDITION status with sense key UNIT ATTENTION and asc/ascq indicating a device reset. According to their logs the next command being sent is WRITE FILEMARK, which results in writing an FM at the beginning of the tape, effectively discarding its contents. In fact, once the write fails with EIO, our software attempts to recover by rewinding and repositioning the tape, then resuming operation. If this fails, it attempts to rewind and reposition again, write a marker at the end of the tape, and then unmount. It does not under any circumstances write either data or filemarks without having successfully positioned the tape to a known point. What actually happens is that, since the last operation was a write, the kernel executes an implied MTWEOF operation (which translate to a Write Filemarks command) before the rewind that was actually requested. This seems not entirely unreasonable, provided the tape position is known. However, once this request fails (due to the unit attention condition), our next rewind attempt also triggers an implied MTWEOF, which does _not_ fail (the unit attention condition persists only until the initiator has been notified); this is the command that unexpectedly erases the tape. Our analysis is that the st driver is in fact completely ignoring the UNIT ATTENTION and associated reset notification from the device. This is not a condition that can be detected in the transport or mid-layer, as it occurs entirely within the target and is reported only via the UNIT ATTENTION sense key. The upper driver (i.e. st) needs to detect this indication and reset its internal model of the device to an unknown state. Suggested-by:
Jeffrey Hutzelman <jhutz@cmu.edu> Signed-off-by:
John Meneghini <jmeneghi@redhat.com> Link: https://lore.kernel.org/r/20230822181413.1210647-1-jmeneghi@redhat.comAcked-by:
Kai Mäkisara <kai.makisara@kolumbus.fi> Signed-off-by:
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Bart Van Assche authored
Provide information in debugfs about SCSI error handling to make it easier to debug the SCSI error handler. Additionally, report the maximum number of retries in debugfs (.allowed). Reviewed-by:
John Garry <john.g.garry@oracle.com> Cc: Hannes Reinecke <hare@suse.de> Cc: Damien Le Moal <damien.lemoal@opensource.wdc.com> Cc: Mike Christie <michael.christie@oracle.com> Cc: Ming Lei <ming.lei@redhat.com> Signed-off-by:
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Bart Van Assche authored
Most callers of scsi_rescan_device() have the scsi_device pointer readily available. Pass a struct scsi_device pointer to scsi_rescan_device() instead of a struct device pointer. This change prevents that a pointer to another struct device would be passed accidentally to scsi_rescan_device(). Remove the scsi_rescan_device() declaration from the scsi_priv.h header file since it duplicates the declaration in <scsi/scsi_host.h>. Reviewed-by:
Hannes Reinecke <hare@suse.de> Reviewed-by:
Damien Le Moal <damien.lemoal@opensource.wdc.com> Reviewed-by:
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Yue Haibing authored
These declarations were never implemented, remove them. Signed-off-by:
Yue Haibing <yuehaibing@huawei.com> Link: https://lore.kernel.org/r/20230822143338.19120-1-yuehaibing@huawei.comSigned-off-by:
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Yue Haibing authored
This declaration was never implemented, remove it. Signed-off-by:
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Juergen Gross authored
There is no need to check whether shost_priv() returns a non-NULL value, as the pointer returned is just an offset to the passed in parameter. While at it replace an open coded shost_priv() instance. Reported-by:
Dan Carpenter <dan.carpenter@linaro.org> Signed-off-by:
Juergen Gross <jgross@suse.com> Link: https://lore.kernel.org/r/20230822064817.27257-1-jgross@suse.comSigned-off-by:
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Martin K. Petersen authored
John Garry <john.g.garry@oracle.com> says: This series tidies-up libsas a bit, including: - delete structure(s) with only one member - delete structure members which are only ever set - delete structure members which are never set and code which relies on that member being set This conflicts with the following series: https://lore.kernel.org/linux-scsi/20230809132249.37948-1-yuehaibing@huawei.com/ Any conflict should be trivial to resolve. Based on mkp-scsi staging at a18e81d1 ("scsi: ufs: ufs-pci: Add support for QEMU") Link: https://lore.kernel.org/r/20230815115156.343535-1-john.g.garry@oracle.comSigned-off-by:
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Martin K. Petersen authored
Igor Pylypiv <ipylypiv@google.com> says: This patch series plumbs libata's request for a result taskfile (ATA_QCFLAG_RESULT_TF) through libsas to pm80xx LLDD. Other libsas LLDDs can start using the newly added return_fis_on_success as well, if needed. For Command Duration Limits policy 0xD (command completes without an error) libata needs FIS in order to detect the ATA_SENSE bit and read the Sense Data for Successful NCQ Commands log (0Fh). pm80xx HBAs do not return FIS on success by default, hence, the driver is updated to set the RETFIS bit (Return FIS on good completion) when requested by libsas. Link: https://lore.kernel.org/r/20230819213040.1101044-1-ipylypiv@google.comSigned-off-by:
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- 21 Aug, 2023 18 commits
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John Garry authored
Since libsas was introduced in commit 2908d778 ("[SCSI] aic94xx: new driver"), sas_ata_task.retry_count is never set, so delete it and the reference in asd_build_ata_ascb(). Signed-off-by:
Damien Le Moal <dlemoal@kernel.org> Reviewed-by:
Jason Yan <yanaijie@huawei.com> Signed-off-by:
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John Garry authored
Since libsas was introduced in commit 2908d778 ("[SCSI] aic94xx: new driver"), sas_ata_task.stp_affil_pol is never set, so delete it and the reference in asd_build_ata_ascb(). Signed-off-by:
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John Garry authored
Since libsas was introduced in commit 2908d778 ("[SCSI] aic94xx: new driver"), sas_ata_task.set_affil_pol is never set, so delete it and the reference in asd_build_ata_ascb(). Signed-off-by:
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John Garry authored
Since libsas was introduced in commit 2908d778 ("[SCSI] aic94xx: new driver"), sas_ssp_task.task_prio is never set, so delete it and any references which depend on it being set (all of them). Signed-off-by:
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John Garry authored
Since libsas was introduced in commit 2908d778 ("[SCSI] aic94xx: new driver"), sas_ssp_task.enable_first_burst is never set, so delete it and any references. Signed-off-by:
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John Garry authored
Since libsas was introduced in commit 2908d778 ("[SCSI] aic94xx: new driver"), sas_ssp_task.retry_count is only ever set, so delete it. The aic94xx driver also had its own retry_count definition in struct scb sub-structs, which may have caused a mix-up. Signed-off-by:
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John Garry authored
Since commit 79855d17 ("libsas: remove task_collector mode"), struct scsi_core only contains a reference to the shost. struct scsi_core is only used in sas_ha_struct.core, so delete scsi_core and replace with a reference to the shost there. Signed-off-by:
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John Garry authored
enum sas_phy_type is used for asd_sas_phy.type, which is only ever set, so delete this member and the enum. Signed-off-by:
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John Garry authored
enum sas_class prob would have been useful if function sas_show_class() was ever implemented, which it wasn't. enum sas_class is used as asd_sas_port.class and asd_sas_phy.class, which are only ever set, so delete these members and the enum. Signed-off-by:
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John Garry authored
Since libsas was introduced in commit 2908d778 ("[SCSI] aic94xx: new driver"), sas_ha_struct.lldd_module has only ever been set, so remove it. Struct scsi_host_template already has a reference to the LLD driver module as to stop the driver being removed unexpectedly. Signed-off-by:
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Nilesh Javali authored
Signed-off-by:
Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by:
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Nilesh Javali authored
Revert due to Get PLOGI Template failed. This reverts commit b68710a8. Cc: stable@vger.kernel.org Signed-off-by:
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Nilesh Javali authored
Fix indentation for warning reported by smatch: drivers/scsi/qla2xxx/qla_init.c:4199 qla_init_iocb_limit() warn: inconsistent indenting Fixes: efa74a62 ("scsi: qla2xxx: Adjust IOCB resource on qpair create") Signed-off-by:
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Manish Rangankar authored
User accidently passed module parameter ql2xenabledif=1 which is unsupported. However, driver still initialized which lead to guard tag errors during device discovery. Remove unsupported ql2xenabledif=1 option and validate the user input. Cc: stable@vger.kernel.org Signed-off-by:
Manish Rangankar <mrangankar@marvell.com> Signed-off-by:
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Quinn Tran authored
TMF was returned with an error code. The error code was not preserved to be returned to upper layer. Instead, the error code from the Marker was returned. Preserve error code from TMF and return it to upper layer. Cc: stable@vger.kernel.org Fixes: da7c21b7 ("scsi: qla2xxx: Fix command flush during TMF") Signed-off-by:
Quinn Tran <qutran@marvell.com> Signed-off-by:
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Bikash Hazarika authored
Add logs for SFP Temperature Alert async event to check if laser is enabled/disabled. Signed-off-by:
Bikash Hazarika <bhazarika@marvell.com> Signed-off-by:
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Quinn Tran authored
The storage was not draining I/Os and the work load was not spread out across different CPUs evenly. This led to firmware resource counters getting overrun on the busy CPU. This overrun prevented error recovery from happening in a timely manner. By switching the counter to atomic, it allows the count to be little more accurate to prevent the overrun. Cc: stable@vger.kernel.org Fixes: da7c21b7 ("scsi: qla2xxx: Fix command flush during TMF") Signed-off-by:
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Quinn Tran authored
Fix race condition between Interrupt thread and Chip reset thread in trying to flush the same mailbox. With the race condition, the "ha->mbx_intr_comp" will get an extra complete() call. The extra complete call create erroneous mailbox timeout condition when the next mailbox is sent where the mailbox call does not wait for interrupt to arrive. Instead, it advances without waiting. Add lock protection around the check for mailbox completion. Cc: stable@vger.kernel.org Fixes: b2000805 ("scsi: qla2xxx: Flush mailbox commands on chip reset") Signed-off-by:
Quinn Tran <quinn.tran@marvell.com> Signed-off-by:
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