scsi: ufs: ufs-debugfs: Add user-defined exception_event_mask

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Allow users to enable specific exception events via debugfs.

The bits enabled by the driver ee_drv_ctrl are separated from the bits
enabled by the user ee_usr_ctrl. The control mask ee_mask_ctrl is the
logical-or of those two. A mutex is needed to ensure that the masks match
what was written to the device.

Link: https://lore.kernel.org/r/20210209062437.6954-4-adrian.hunter@intel.com
Acked-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

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Adrian Hunter 2021-02-09 08:24:36 +02:00 • committed by Martin K. Petersen

parent 37b97b1870

commit cd46947561

3 changed files with 120 additions and 34 deletions

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46

drivers/scsi/ufs/ufs-debugfs.c

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86

drivers/scsi/ufs/ufshcd.c

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22

drivers/scsi/ufs/ufshcd.h

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