FW does not support SYNCHRONIZE_CACHE cmd. FW flush cache on its own.
So, we just return success from the megasas_queue_command.
Signed-off-by: Sumant Patro <[email protected]>
---
drivers/scsi/megaraid/megaraid_sas.c | 12 ++++++++++++
1 files changed, 12 insertions(+)
diff -uprN linux-feb13-new-p4/drivers/scsi/megaraid/megaraid_sas.c linux-feb13-new-p5/drivers/scsi/megaraid/megaraid_sas.c
--- linux-feb13-new-p4/drivers/scsi/megaraid/megaraid_sas.c 2007-02-14 04:34:31.000000000 -0800
+++ linux-feb13-new-p5/drivers/scsi/megaraid/megaraid_sas.c 2007-02-14 05:19:30.000000000 -0800
@@ -857,6 +857,18 @@ megasas_queue_command(struct scsi_cmnd *
goto out_done;
}
+ switch (scmd->cmnd[0]) {
+ case SYNCHRONIZE_CACHE:
+ /*
+ * FW takes care of flush cache on its own
+ * No need to send it down
+ */
+ scmd->result = DID_OK << 16;
+ goto out_done;
+ default:
+ break;
+ }
+
/* Check if we can accept cmds */
if (instance->is_busy) {
sec = (jiffies - instance->last_time) / HZ;