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scsi: cxlflash: Support AFU debug

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Adopt the SISLite AFU debug capability to allow future CXL Flash
adapters the ability to better debug AFU issues. Update the SISLite
header with the changes necessary to support AFU debug operations
and create a host ioctl interface for user debug software. Also
update the cxlflash documentation to describe this new host ioctl.

Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Uma Krishnan <ukrishn@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Matthew R. Ochs
2017-06-21 21:16:22 -05:00
committed by Martin K. Petersen
parent 9cf43a3604
commit bc88ac47d5
6 changed files with 152 additions and 3 deletions
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1
drivers/scsi/cxlflash/main.h
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@@ -68,6 +68,7 @@
/* AFU command timeout values */
#define MC_AFU_SYNC_TIMEOUT 5 /* 5 secs */
#define MC_LUN_PROV_TIMEOUT 5 /* 5 secs */
#define MC_AFU_DEBUG_TIMEOUT 5 /* 5 secs */
/* AFU command room retry limit */
#define MC_ROOM_RETRY_CNT 10