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path: root/drivers/scsi/mpi3mr/mpi3mr_app.c
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2023-03-31Merge branch '6.3/scsi-fixes' into 6.4/scsi-stagingMartin K. Petersen
Pull in the fixes branch to resolve an mpi3mr conflict reported by sfr. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-03-16scsi: mpi3mr: Update copyright yearRanjan Kumar
Update copyright year from 2022 to 2023. Signed-off-by: Ranjan Kumar <ranjan.kumar@broadcom.com> Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Link: https://lore.kernel.org/r/20230316110209.60145-8-ranjan.kumar@broadcom.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-03-16scsi: mpi3mr: Fix W=1 compilation warningsRanjan Kumar
Fix W=1 compilation warnings. Signed-off-by: Ranjan Kumar <ranjan.kumar@broadcom.com> Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Link: https://lore.kernel.org/r/20230316110209.60145-7-ranjan.kumar@broadcom.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-03-06scsi: mpi3mr: NVMe command size greater than 8K failsRanjan Kumar
A wrong variable is checked while populating PRP entries in the PRP page and this results in failure. No PRP entries in the PRP page were successfully created and any NVMe Encapsulated commands with PRP of size greater than 8K failed. Signed-off-by: Ranjan Kumar <ranjan.kumar@broadcom.com> Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Link: https://lore.kernel.org/r/20230228140835.4075-6-ranjan.kumar@broadcom.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-02-21scsi: mpi3mr: Remove unnecessary memcpy() to alltgt_info->dmiShin'ichiro Kawasaki
In the function mpi3mr_get_all_tgt_info(), devmap_info points to alltgt_info->dmi then there is no need to memcpy() data from devmap_info to alltgt_info->dmi. Remove the unnecessary memcpy(). This also allows to remove the local variable 'rval' and the goto label 'out'. Link: https://lore.kernel.org/r/20230214005019.1897251-3-shinichiro.kawasaki@wdc.com Cc: stable@vger.kernel.org Fixes: f5e6d5a34376 ("scsi: mpi3mr: Add support for driver commands") Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com> Acked-by: Sathya Prakash Veerichetty <sathya.prakash@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2023-02-21scsi: mpi3mr: Fix issues in mpi3mr_get_all_tgt_info()Shin'ichiro Kawasaki
The function mpi3mr_get_all_tgt_info() has four issues: 1) It calculates valid entry length in alltgt_info assuming the header part of the struct mpi3mr_device_map_info would equal to sizeof(u32). The correct size is sizeof(u64). 2) When it calculates the valid entry length kern_entrylen, it excludes one entry by subtracting 1 from num_devices. 3) It copies num_device by calling memcpy(). Substitution is enough. 4) It does not specify the calculated length to sg_copy_from_buffer(). Instead, it specifies the payload length which is larger than the alltgt_info size. It causes "BUG: KASAN: slab-out-of-bounds". Fix the issues by using the correct header size, removing the subtraction from num_devices, replacing the memcpy() with substitution and specifying the correct length to sg_copy_from_buffer(). Link: https://lore.kernel.org/r/20230214005019.1897251-2-shinichiro.kawasaki@wdc.com Cc: stable@vger.kernel.org Fixes: f5e6d5a34376 ("scsi: mpi3mr: Add support for driver commands") Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com> Acked-by: Sathya Prakash Veerichetty <sathya.prakash@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-06-01scsi: mpi3mr: Fix kernel-docJiapeng Chong
Fix the following W=1 kernel warnings: drivers/scsi/mpi3mr/mpi3mr_app.c:1706: warning: expecting prototype for adapter_state_show(). Prototype was for adp_state_show() instead. Link: https://lore.kernel.org/r/20220525093514.55467-1-jiapeng.chong@linux.alibaba.com Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-06-01scsi: mpi3mr: Rework mrioc->bsg_device model to fix warningsSumit Saxena
During driver unload, mrioc->bsg_device reference count becomes negative. Also, as reported in [1], the driver's bsg_device model had few more bugs. Fix all these up. [1] https://marc.info/?l=linux-scsi&m=165183971411991&w=2 Link: https://lore.kernel.org/r/20220526170157.58274-1-sumit.saxena@broadcom.com Fixes: 4268fa751365 ("scsi: mpi3mr: Add bsg device support") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Tested-by: Tomas Henzl <thenzl@redhat.com> Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-19scsi: mpi3mr: Add target device related sysfs attributesSreekanth Reddy
Add sysfs attributes for exposing target device details such as SAS address, firmware device handle, and persistent ID for the controller-attached devices and RAID volumes. Link: https://lore.kernel.org/r/20220517115310.13062-3-sreekanth.reddy@broadcom.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-19scsi: mpi3mr: Add shost related sysfs attributesSreekanth Reddy
Add shost related sysfs attributes to display the controller's firmware version, queue depth, number of requests, and number of reply queues. Also add an attribute to set & get the logging_level. Link: https://lore.kernel.org/r/20220517115310.13062-2-sreekanth.reddy@broadcom.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-16scsi: mpi3mr: Fix a NULL vs IS_ERR() bug in mpi3mr_bsg_init()Dan Carpenter
The bsg_setup_queue() function does not return NULL. It returns error pointers. Fix the check accordingly. Link: https://lore.kernel.org/r/YnUf7RQl+A3tigWh@kili Fixes: 4268fa751365 ("scsi: mpi3mr: Add bsg device support") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-02scsi: mpi3mr: Add support for NVMe passthroughSumit Saxena
Add support for management applications to send an MPI3 Encapsulated NVMe passthru command to the NVMe devices attached to an Avenger controller. Since the NVMe drives are exposed as SCSI devices by the controller, the standard NVMe applications cannot be used to interact with the drives and the command sets supported are also limited by the controller firmware. Special handling is required for MPI3 Encapsulated NVMe passthru commands for PRP/SGL setup in the commands. Link: https://lore.kernel.org/r/20220429211641.642010-8-sumit.saxena@broadcom.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-02scsi: mpi3mr: Expose adapter state to sysfsSumit Saxena
Link: https://lore.kernel.org/r/20220429211641.642010-7-sumit.saxena@broadcom.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-02scsi: mpi3mr: Add support for PEL commandsSumit Saxena
Implement driver support for management applications to enable persistent event log (PEL) notifications. Upon receipt of events, the driver will increment a sysfs variable named event_counter. The management application will poll for event_counter value changes and signal the application about events. Link: https://lore.kernel.org/r/20220429211641.642010-6-sumit.saxena@broadcom.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-02scsi: mpi3mr: Add support for MPT commandsSumit Saxena
There are certain management commands which require firmware intervention. These commands are termed MPT commands. Add support for them. Link: https://lore.kernel.org/r/20220429211641.642010-5-sumit.saxena@broadcom.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-02scsi: mpi3mr: Add support for driver commandsSumit Saxena
There are certain bsg commands which need to be completed by the driver without involving firmware. These requests are termed driver commands. Add support for these. Link: https://lore.kernel.org/r/20220429211641.642010-3-sumit.saxena@broadcom.com Reported by: Stephen Rothwell <sfr@canb.auug.org.au> Reported-by: kernel test robot <lkp@intel.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-02scsi: mpi3mr: Add bsg device supportSumit Saxena
Create bsg device per controller for controller management purposes. bsg device nodes will be named /dev/bsg/mpi3mrctl0, /dev/bsg/mpi3mrctl1, etc. Link: https://lore.kernel.org/r/20220429211641.642010-2-sumit.saxena@broadcom.com Reported-by: kernel test robot <lkp@intel.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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