megaraid_sas: add support for secure JBOD

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This patch adds support for Secure Encrypting Drives (SED) in JBOD mode:

1) If the firmware supports SED JBOD, all non read/write commands to JBODs
   will be sent via firmware path, and read/write commands to JBODs will
   be sent via fastpath.
2) If the firmware does not support SED JBOD, driver will fall back to the
   old design, i.e. send all JBOD I/O via fastpath.

Signed-off-by: Sumit Saxena <sumit.saxena@avagotech.com>
Signed-off-by: Chaitra Basappa <chaitra.basappa@avagotech.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>

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This commit is contained in:

Sumit.Saxena@avagotech.com 2015-01-05 20:06:03 +05:30 • committed by Christoph Hellwig

parent 200aed582d

commit 7497cde883

3 changed files with 107 additions and 51 deletions

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57

drivers/scsi/megaraid/megaraid_sas.h

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28

drivers/scsi/megaraid/megaraid_sas_base.c

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73

drivers/scsi/megaraid/megaraid_sas_fusion.c

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