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2021-06-02scsi: iscsi: Stop queueing during ep_disconnectMike Christie
During ep_disconnect we have been doing iscsi_suspend_tx/queue to block new I/O but every driver except cxgbi and iscsi_tcp can still get I/O from __iscsi_conn_send_pdu() if we haven't called iscsi_conn_failure() before ep_disconnect. This could happen if we were terminating the session, and the logout timed out before it was even sent to libiscsi. Fix the issue by adding a helper which reverses the bind_conn call that allows new I/O to be queued. Drivers implementing ep_disconnect can use this to make sure new I/O is not queued to them when handling the disconnect. Link: https://lore.kernel.org/r/20210525181821.7617-3-michael.christie@oracle.com Reviewed-by: Lee Duncan <lduncan@suse.com> Signed-off-by: Mike Christie <michael.christie@oracle.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-02scsi: iscsi: Add task completion helperMike Christie
This adds a helper to detect if a cmd has completed but is not yet freed. Link: https://lore.kernel.org/r/20210525181821.7617-2-michael.christie@oracle.com Reviewed-by: Lee Duncan <lduncan@suse.com> Signed-off-by: Mike Christie <michael.christie@oracle.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-02scsi: megaraid_sas: Update driver version to 07.717.02.00-rc1Chandrakanth Patil
Link: https://lore.kernel.org/r/20210528131307.25683-6-chandrakanth.patil@broadcom.com Signed-off-by: Chandrakanth Patil <chandrakanth.patil@broadcom.com> 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: Early detection of VD deletion through RaidMap updateKashyap Desai
Consider the case where a VD is deleted and the targetID of that VD is assigned to a newly created VD. If the sequence of deletion/addition of VD happens very quickly there is a possibility that second event (VD add) occurs even before the driver processes the first event (VD delete). As event processing is done in deferred context the device list remains the same (but targetID is re-used) so driver will not learn the VD deletion/additon. I/Os meant for the older VD will be directed to new VD which may lead to data corruption. Make driver detect the deleted VD as soon as possible based on the RaidMap update and block further I/O to that device. Link: https://lore.kernel.org/r/20210528131307.25683-4-chandrakanth.patil@broadcom.com Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com> Signed-off-by: Chandrakanth Patil <chandrakanth.patil@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>
2021-06-02scsi: 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>
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>
2021-06-02scsi: mpi3mr: Add mpi30 Rev-R headers and KconfigKashyap Desai
This adds the Kconfig and mpi30 headers. Link: https://lore.kernel.org/r/20210520152545.2710479-2-kashyap.desai@broadcom.com Cc: sathya.prakash@broadcom.com Cc: bvanassche@acm.org Cc: hch@infradead.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>
2021-06-02scsi: ufs: Fix a kernel-doc related formatting issueBean Huo
Fix the following W=1 kernel build warning: drivers/scsi/ufs/ufshcd.c:9773: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst [mkp: upcase abbreviations] Link: https://lore.kernel.org/r/20210531163122.451375-1-huobean@gmail.com Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com> Signed-off-by: Bean Huo <beanhuo@micron.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-02scsi: isci: Use correctly sized target buffer for memcpy()Kees Cook
In preparation for FORTIFY_SOURCE performing compile-time and run-time field bounds checking for memcpy(), avoid intentionally writing across neighboring array fields. Switch from rsp_ui to resp_buf, since resp_ui isn't SSP_RESP_IU_MAX_SIZE bytes in length. This avoids future compile-time warnings. Link: https://lore.kernel.org/r/20210528181337.792268-4-keescook@chromium.org Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-02scsi: esas2r: Switch to flexible array memberKees Cook
In preparation for FORTIFY_SOURCE performing compile-time and run-time field bounds checking for memcpy(), avoid intentionally writing across neighboring array fields. Remove old-style 1-byte array in favor of a flexible array[1] to avoid future false-positive cross-field memcpy() warning in: esas2r_vda.c: memcpy(vi->cmd.gsv.version_info, esas2r_vdaioctl_versions, ...) The change in struct size doesn't change other structure sizes (it is already maxed out to 256 bytes, for example here: union { struct atto_ioctl_vda_scsi_cmd scsi; struct atto_ioctl_vda_flash_cmd flash; struct atto_ioctl_vda_diag_cmd diag; struct atto_ioctl_vda_cli_cmd cli; struct atto_ioctl_vda_smp_cmd smp; struct atto_ioctl_vda_cfg_cmd cfg; struct atto_ioctl_vda_mgt_cmd mgt; struct atto_ioctl_vda_gsv_cmd gsv; u8 cmd_info[256]; } cmd; No sizes are calculated using the enclosing structure, so no other updates are needed. Link: https://lore.kernel.org/r/20210528181337.792268-3-keescook@chromium.org Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-02scsi: FlashPoint: Rename si_flags fieldRandy Dunlap
The BusLogic driver has build errors on ia64 due to a name collision (in the #included FlashPoint.c file). Rename the struct field in struct sccb_mgr_info from si_flags to si_mflags (manager flags) to mend the build. This is the first problem. There are 50+ others after this one: In file included from ../include/uapi/linux/signal.h:6, from ../include/linux/signal_types.h:10, from ../include/linux/sched.h:29, from ../include/linux/hardirq.h:9, from ../include/linux/interrupt.h:11, from ../drivers/scsi/BusLogic.c:27: ../arch/ia64/include/uapi/asm/siginfo.h:15:27: error: expected ':', ',', ';', '}' or '__attribute__' before '.' token 15 | #define si_flags _sifields._sigfault._flags | ^ ../drivers/scsi/FlashPoint.c:43:6: note: in expansion of macro 'si_flags' 43 | u16 si_flags; | ^~~~~~~~ In file included from ../drivers/scsi/BusLogic.c:51: ../drivers/scsi/FlashPoint.c: In function 'FlashPoint_ProbeHostAdapter': ../drivers/scsi/FlashPoint.c:1076:11: error: 'struct sccb_mgr_info' has no member named '_sifields' 1076 | pCardInfo->si_flags = 0x0000; | ^~ ../drivers/scsi/FlashPoint.c:1079:12: error: 'struct sccb_mgr_info' has no member named '_sifields' Link: https://lore.kernel.org/r/20210529234857.6870-1-rdunlap@infradead.org Fixes: 391e2f25601e ("[SCSI] BusLogic: Port driver to 64-bit.") Cc: "James E.J. Bottomley" <jejb@linux.ibm.com> Cc: "Martin K. Petersen" <martin.petersen@oracle.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Jens Axboe <axboe@kernel.dk> Cc: Hannes Reinecke <hare@suse.de> Cc: Khalid Aziz <khalid.aziz@oracle.com> Cc: Khalid Aziz <khalid@gonehiking.org> Reported-by: kernel test robot <lkp@intel.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-02scsi: mpt3sas: Fix fall-through warnings for ClangGustavo A. R. Silva
In preparation to enable -Wimplicit-fallthrough for Clang, fix a couple of warnings by explicitly adding break statements 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/20210528200828.GA39349@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>
2021-06-02scsi: qla2xxx: Log PCI address in qla_nvme_unregister_remote_port()Daniel Wagner
Pass in fcport->vha to ql_log() in order to add the PCI address to the log. Currently NULL is passed in which gives this confusing log entry: > qla2xxx [0000:00:00.0]-2112: : qla_nvme_unregister_remote_port: unregister remoteport on 0000000009d6a2e9 50000973981648c7 Link: https://lore.kernel.org/r/20210531122444.116655-1-dwagner@suse.de Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Daniel Wagner <dwagner@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-02scsi: ufs: ufs-mediatek: Disable HCI before HW resetAlice.Chao
MediaTek ufshci needs to be disabled before HW reset to avoid potential issues. Link: https://lore.kernel.org/r/20210528033624.12170-3-alice.chao@mediatek.com Reviewed-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Alice.Chao <alice.chao@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-06-02scsi: ufs: core: Export ufshcd_hba_stop()Alice.Chao
Export ufshcd_hba_stop() to allow vendors to disable HCI in variant ops. Link: https://lore.kernel.org/r/20210528033624.12170-2-alice.chao@mediatek.com Reviewed-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Alice.Chao <alice.chao@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-05-31scsi: core: Drop obsolete Linux-specific SCSI status codesHannes Reinecke
Originally the SCSI subsystem has been using 'special' SCSI status codes, which were the SAM-specified ones but shifted by 1. As most drivers have now been modified to use the SAM-specified ones, having two nearly identical sets of definitions only causes confusion. The Linux-specifed SCSI status codes have been marked obsolete for several years so drop them and use the SAM-specified status codes throughout. Link: https://lore.kernel.org/r/20210427083046.31620-41-hare@suse.de Reviewed-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Douglas Gilbert <dgilbert@interlog.com> Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-05-31scsi: pcmcia: nsp_cs: Use SAM_STAT_CHECK_CONDITIONHannes Reinecke
The nsp_cs driver stores the SAM status values in SCp.Status, so we need to use the non-shifted version SAM_STAT_CHECK_CONDITION. Link: https://lore.kernel.org/r/20210527072217.117126-1-hare@suse.de Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-05-31scsi: target: Use standard SAM status typesHannes Reinecke
target_complete_cmd() and friends requires a SAM status type, so passing GOOD here is actually wrong. Link: https://lore.kernel.org/r/20210427083046.31620-40-hare@suse.de Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-05-31scsi: core: Kill message byteHannes Reinecke
Remove last vestiges of SCSI status message bytes. Link: https://lore.kernel.org/r/20210427083046.31620-39-hare@suse.de Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-05-31scsi: core: Drop message byte helperHannes Reinecke
The message byte is now unused, so we can drop the helper to set the message byte and the check for message bytes during error recovery. Link: https://lore.kernel.org/r/20210427083046.31620-38-hare@suse.de Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-05-31scsi: fdomain: Translate message to host byte statusHannes Reinecke
Instead of setting the message byte translate it to the appropriate host byte. As error recovery would return DID_ERROR for any non-zero message byte the translation doesn't change the error handling. Link: https://lore.kernel.org/r/20210427083046.31620-37-hare@suse.de Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-05-31scsi: fdomain: Drop last argument to fdomain_finish_cmd()Hannes Reinecke
Set the SCSI host status before calling fdomain_finish_cmd() and drop the last argument to that function. Link: https://lore.kernel.org/r/20210427083046.31620-36-hare@suse.de Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-05-31scsi: FlashPoint: Use standard SCSI definitionsHannes Reinecke
No point in having the driver providing its own definitions. Link: https://lore.kernel.org/r/20210427083046.31620-35-hare@suse.de Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-05-31scsi: fas216: Use get_status_byte() to avoid using Linux-specific status codesHannes Reinecke
The driver should be using the standard SAM_STAT_ values, and not the Linux-specific ones. Link: https://lore.kernel.org/r/20210427083046.31620-34-hare@suse.de Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-05-31scsi: fas216: Translate message to host byte statusHannes Reinecke
Instead of setting the message byte translate it to the appropriate host byte. As error recovery would return DID_ERROR for any non-zero message byte the translation doesn't change the error handling. [mkp: zeroday bug report: s/SCpnt->result/SCpnt/] Link: https://lore.kernel.org/r/20210427083046.31620-33-hare@suse.de Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-05-31scsi: advansys: Do not set message byte in SCSI statusHannes Reinecke
The host byte in the SCSI status takes precedence during error recovery, so there is no point in setting the message byte in addition to a host byte which is not DID_OK. Link: https://lore.kernel.org/r/20210427083046.31620-32-hare@suse.de Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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