scsi: mpi3mr: Gracefully handle online FW update operation
Enhance driver to gracefully handle discrepancies in certain key data sizes
between firmware update operations as mentioned below:
- The driver displays an error message and marks the controller as
unrecoverable if the firmware reports ReplyFrameSize that is greater
than the current ReplyFrameSize.
- If the firmware reports ReplyFrameSize greater than the current
ReplyFrameSize then the driver uses the current ReplyFrameSize while
copying the reply messages.
- The driver displays an error message and marks the controller as
unrecoverable if the firmware reports MaxOperationalReplyQueues less
than the currently allocated operational reply queues count.
- If the firmware reports MaxOperationalReplyQueues that is greater than
the currently allocated operational reply queue count then the driver
ignores the new increased value and uses the previously allocated number
of operational queues only.
- If the firmware reports MaxDevHandle greater than the previously used
MaxDevHandle value after a reset then the driver re-allocates the
'device remove pending bitmap' buffer with the newer size using
krealloc().
Link: https://lore.kernel.org/r/20211220141159.16117-18-sreekanth.reddy@broadcom.com
Signed-off-by: Sreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2 files changed