cxlflash: Shutdown notify support for CXL Flash cards
Some CXL Flash cards need notification of device shutdown in order to
flush pending I/Os.
A PCI notification hook for shutdown has been added where the driver
notifies the card and returns. When the device is removed in the PCI
remove path, notification code will wait for shutdown processing to
complete.
Signed-off-by: Uma Krishnan <ukrishn@linux.vnet.ibm.com>
Acked-by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>
Acked-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
diff --git a/drivers/scsi/cxlflash/sislite.h b/drivers/scsi/cxlflash/sislite.h
index 0b3366f..347fc16 100644
--- a/drivers/scsi/cxlflash/sislite.h
+++ b/drivers/scsi/cxlflash/sislite.h
@@ -311,6 +311,12 @@
#define SISL_FC_INTERNAL_MASK ~(SISL_FC_INTERNAL_UNMASK)
#define SISL_FC_INTERNAL_SHIFT 32
+#define SISL_FC_SHUTDOWN_NORMAL 0x0000000000000010ULL
+#define SISL_FC_SHUTDOWN_ABRUPT 0x0000000000000020ULL
+
+#define SISL_STATUS_SHUTDOWN_ACTIVE 0x0000000000000010ULL
+#define SISL_STATUS_SHUTDOWN_COMPLETE 0x0000000000000020ULL
+
#define SISL_ASTATUS_UNMASK 0xFFFFULL /* 1 means unmasked */
#define SISL_ASTATUS_MASK ~(SISL_ASTATUS_UNMASK) /* 1 means masked */