scsi: lpfc: Fix missing check for CSF in Write Object Mbox Rsp
authorJames Smart <jsmart2021@gmail.com>
Wed, 18 Dec 2019 23:58:01 +0000 (15:58 -0800)
committerMartin K. Petersen <martin.petersen@oracle.com>
Sat, 21 Dec 2019 18:42:42 +0000 (13:42 -0500)
commitf3d0a8acc5a88435186d242376db05788a891516
tree56b5c8beac9be449796a41cefa5d24d449a5a808
parentdf9166bfa7750bade5737ffc91fbd432e0354442
scsi: lpfc: Fix missing check for CSF in Write Object Mbox Rsp

When the WriteObject mailbox response has change_status set to is 0x2
(Firmware Reset) or 0x04 (Port Migration Reset), the CSF field should also
be checked to see if a fw reset is sufficient to enable all new features in
the updated firmware image. If not, a fw reset would start the new
firmware, but with a feature level equal to existing firmware.  To enable
the new features, a chip reset/pci slot reset would be required.

Check the CSF bit when change_status is 0x2 or 0x4 to know whether to
perform a pci bus reset or fw reset.

Link: https://lore.kernel.org/r/20191218235808.31922-4-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
drivers/scsi/lpfc/lpfc_hw4.h
drivers/scsi/lpfc/lpfc_sli.c