linux-kernel - [PATCH 4.14 096/183] scsi: aacraid: Fix performance issue on logical drives

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Message-Id: <20190322111248.661783278@linuxfoundation.org>
Date:   Fri, 22 Mar 2019 12:15:24 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Sagar Biradar <Sagar.Biradar@...rochip.com>,
        Dave Carroll <david.carroll@...rosemi.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>
Subject: [PATCH 4.14 096/183] scsi: aacraid: Fix performance issue on logical drives

4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Sagar Biradar <sagar.biradar@...rochip.com>

commit 0015437cc046e5ec2b57b00ff8312b8d432eac7c upstream.

Fix performance issue where the queue depth for SmartIOC logical volumes is
set to 1, and allow the usual logical volume code to be executed

Fixes: a052865fe287 (aacraid: Set correct Queue Depth for HBA1000 RAW disks)
Cc: stable@...r.kernel.org
Signed-off-by: Sagar Biradar <Sagar.Biradar@...rochip.com>
Reviewed-by: Dave Carroll <david.carroll@...rosemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@...cle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/scsi/aacraid/linit.c |   13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -413,13 +413,16 @@ static int aac_slave_configure(struct sc
 	if (chn < AAC_MAX_BUSES && tid < AAC_MAX_TARGETS && aac->sa_firmware) {
 		devtype = aac->hba_map[chn][tid].devtype;
 
-		if (devtype == AAC_DEVTYPE_NATIVE_RAW)
+		if (devtype == AAC_DEVTYPE_NATIVE_RAW) {
 			depth = aac->hba_map[chn][tid].qd_limit;
-		else if (devtype == AAC_DEVTYPE_ARC_RAW)
+			set_timeout = 1;
+			goto common_config;
+		}
+		if (devtype == AAC_DEVTYPE_ARC_RAW) {
 			set_qd_dev_type = true;
-
-		set_timeout = 1;
-		goto common_config;
+			set_timeout = 1;
+			goto common_config;
+		}
 	}
 
 	if (aac->jbod && (sdev->type == TYPE_DISK))