scsi: mpt3sas: Add persistent Master trigger page
authorSuganath Prabu S <suganath-prabu.subramani@broadcom.com>
Thu, 26 Nov 2020 09:43:06 +0000 (15:13 +0530)
committerMartin K. Petersen <martin.petersen@oracle.com>
Wed, 9 Dec 2020 16:34:19 +0000 (11:34 -0500)
commitbb855f2a5d7eb8f270eb30fda9b2b87cd682212c
tree4676ccd67e2d5759b4046fe27a37f4fb318fcda0
parentaec93e8e238512689885c20c1af6e67747850341
scsi: mpt3sas: Add persistent Master trigger page

Trigger Page 1 is used to store information about Master triggers.  Below
are the Master trigger conditions:

  Bit[3]  Trigger condition for Device Removal event
  Bit[2]  Trigger condition for TM command issued by driver
  Bit[1]  Trigger condition for Adapter reset issued by driver
  Bit[0]  Trigger condition for IOC Fault state

During driver load, if Master trigger type bit is enabled in the Persistent
Trigger Page0, then read the Persistent Trigger Page1 and update the IOC
instance's diag_trigger_master.MasterData with Persistent Trigger Page1's
MasterTriggerFlags.

Link: https://lore.kernel.org/r/20201126094311.8686-4-suganath-prabu.subramani@broadcom.com
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Suganath Prabu S <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
drivers/scsi/mpt3sas/mpt3sas_base.c
drivers/scsi/mpt3sas/mpt3sas_base.h
drivers/scsi/mpt3sas/mpt3sas_config.c