scsi: mpi3mr: Add support for DSN secure firmware check

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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>

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Kashyap Desai 2021-05-20 20:55:43 +05:30 • committed by Martin K. Petersen

parent 2f9c4d520a

commit 28cbe2f420

2 changed files with 89 additions and 0 deletions

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9

drivers/scsi/mpi3mr/mpi3mr.h

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80

drivers/scsi/mpi3mr/mpi3mr_os.c

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