From: Sumant Patro <sumantp@lsil.com>
To: James.Bottomley@SteelEye.com, akpm@osdl.org
Cc: linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org,
neela.kolli@lsi.com, bo.yang@lsi.com, sumant.patro@lsi.com
Subject: [PATCH 5/6] scsi: megaraid_sas - return sync cache call with success
Date: Wed, 14 Feb 2007 13:00:55 -0800 [thread overview]
Message-ID: <1171486855.4188.33.camel@dumbo> (raw)
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@lsi.com>
---
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;
reply other threads:[~2007-02-15 2:10 UTC|newest]
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