From: Sagar Biradar <sagar.biradar@xxxxxxxxxxxxx>
Avoid drive spin down during a warm boot on Linux.
Call the BMIC Flush Cache command (0xc2) to indicate the reason for
the flush cache (shutdown, hibernate, suspend, or restart).
Reviewed-by: Mike McGowen <mike.mcgowen@xxxxxxxxxxxxx>
Reviewed-by: Scott Benesh <scott.benesh@xxxxxxxxxxxxx>
Reviewed-by: Scott Teel <scott.teel@xxxxxxxxxxxxx>
Signed-off-by: Sagar Biradar <sagar.biradar@xxxxxxxxxxxxx>
Signed-off-by: Don Brace <don.brace@xxxxxxxxxxxxx>
---
drivers/scsi/smartpqi/smartpqi_init.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c
index ad9fa1628a69..f51605cd098c 100644
--- a/drivers/scsi/smartpqi/smartpqi_init.c
+++ b/drivers/scsi/smartpqi/smartpqi_init.c
@@ -8902,6 +8902,7 @@ static void pqi_shutdown(struct pci_dev *pci_dev)
{
int rc;
struct pqi_ctrl_info *ctrl_info;
+ enum bmic_flush_cache_shutdown_event shutdown_event;
ctrl_info = pci_get_drvdata(pci_dev);
if (!ctrl_info) {
@@ -8917,11 +8918,16 @@ static void pqi_shutdown(struct pci_dev *pci_dev)
pqi_ctrl_block_requests(ctrl_info);
pqi_ctrl_wait_until_quiesced(ctrl_info);
+ if (system_state == SYSTEM_RESTART)
+ shutdown_event = RESTART;
+ else
+ shutdown_event = SHUTDOWN;
+
/*
* Write all data in the controller's battery-backed cache to
* storage.
*/
- rc = pqi_flush_cache(ctrl_info, SHUTDOWN);
+ rc = pqi_flush_cache(ctrl_info, shutdown_event);
if (rc)
dev_err(&pci_dev->dev,
"unable to flush controller cache\n");
