The patch titled
scsi: megaraid_sas - return sync cache call with success
has been added to the -mm tree. Its filename is
scsi-megaraid_sas-return-sync-cache-call-with-success.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: scsi: megaraid_sas - return sync cache call with success
From: Sumant Patro <sumantp@xxxxxxxx>
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 <sumant.patro@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/scsi/megaraid/megaraid_sas.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff -puN drivers/scsi/megaraid/megaraid_sas.c~scsi-megaraid_sas-return-sync-cache-call-with-success drivers/scsi/megaraid/megaraid_sas.c
--- a/drivers/scsi/megaraid/megaraid_sas.c~scsi-megaraid_sas-return-sync-cache-call-with-success
+++ a/drivers/scsi/megaraid/megaraid_sas.c
@@ -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;
_
Patches currently in -mm which might be from sumantp@xxxxxxxx are
origin.patch
scsi-megaraid_sas-donot-process-cmds-if-hw_crit_error-is-set.patch
scsi-megaraid_sas-added-bios_param-in-scsi_host_template.patch
scsi-megaraid_sas-throttle-io-if-fw-is-busy.patch
scsi-megaraid_sas-replace-pci_alloc_consitent-with-dma_alloc_coherent-in-ioctl-path.patch
scsi-megaraid_sas-return-sync-cache-call-with-success.patch
scsi-megaraid_sas-update-version-and-author-info.patch
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