From: Don Brace <don.brace@microchip.com>
To: <Kevin.Barnett@microchip.com>, <scott.teel@microchip.com>,
<Justin.Lindley@microchip.com>, <scott.benesh@microchip.com>,
<gerry.morong@microchip.com>, <mahesh.rajashekhara@microchip.com>,
<hch@infradead.org>, <jejb@linux.vnet.ibm.com>,
<joseph.szczypek@hpe.com>, <POSWALD@suse.com>
Cc: <linux-scsi@vger.kernel.org>
Subject: [PATCH V2 11/25] smartpqi: add host level stream detection enable
Date: Tue, 8 Dec 2020 13:37:39 -0600 [thread overview]
Message-ID: <160745625914.13450.3429791820478001325.stgit@brunhilda> (raw)
In-Reply-To: <160745609917.13450.11882890596851148601.stgit@brunhilda>
* Allow R5/R6 stream detection to be disabled/enabled.
using sysfs entry enable_stream_detection.
Example usage:
lsscsi
[2:2:0:0] storage Adaptec 3258P-32i /e 0010
^
|
+---- NOTE: here host is host2
find /sys -name \*enable_stream\*
/sys/devices/pci0000:36/0000:36:00.0/0000:37:00.0/0000:38:00.0/0000:39:00.0/host2/scsi_host/host2/enable_stream_detection
/sys/devices/pci0000:5b/0000:5b:00.0/0000:5c:00.0/host3/scsi_host/host3/enable_stream_detection
Current stream detection:
cat /sys/devices/pci0000:36/0000:36:00.0/0000:37:00.0/0000:38:00.0/0000:39:00.0/host2/scsi_host/host2/enable_stream_detection
1
Turn off stream detection:
echo 0 > /sys/devices/pci0000:36/0000:36:00.0/0000:37:00.0/0000:38:00.0/0000:39:00.0/host2/scsi_host/host2/enable_stream_detection
Turn on stream detection:
echo 1 > /sys/devices/pci0000:36/0000:36:00.0/0000:37:00.0/0000:38:00.0/0000:39:00.0/host2/scsi_host/host2/enable_stream_detection
Reviewed-by: Scott Benesh <scott.benesh@microchip.com>
Reviewed-by: Scott Teel <scott.teel@microchip.com>
Reviewed-by: Kevin Barnett <kevin.barnett@microchip.com>
Signed-off-by: Don Brace <don.brace@microchip.com>
---
drivers/scsi/smartpqi/smartpqi_init.c | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c
index 0d1b3ce7989f..c5ee93a60695 100644
--- a/drivers/scsi/smartpqi/smartpqi_init.c
+++ b/drivers/scsi/smartpqi/smartpqi_init.c
@@ -6718,6 +6718,34 @@ static ssize_t pqi_lockup_action_store(struct device *dev,
return -EINVAL;
}
+static ssize_t pqi_host_enable_stream_detection_show(struct device *dev,
+ struct device_attribute *attr, char *buffer)
+{
+ struct Scsi_Host *shost = class_to_shost(dev);
+ struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost);
+
+ return scnprintf(buffer, 10, "%hhx\n",
+ ctrl_info->enable_stream_detection);
+}
+
+static ssize_t pqi_host_enable_stream_detection_store(struct device *dev,
+ struct device_attribute *attr, const char *buffer, size_t count)
+{
+ struct Scsi_Host *shost = class_to_shost(dev);
+ struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost);
+ u8 set_stream_detection = 0;
+
+ if (kstrtou8(buffer, 0, &set_stream_detection))
+ return -EINVAL;
+
+ if (set_stream_detection > 0)
+ set_stream_detection = 1;
+
+ ctrl_info->enable_stream_detection = set_stream_detection;
+
+ return count;
+}
+
static ssize_t pqi_host_enable_r5_writes_show(struct device *dev,
struct device_attribute *attr, char *buffer)
{
@@ -6780,6 +6808,9 @@ static DEVICE_ATTR(vendor, 0444, pqi_vendor_show, NULL);
static DEVICE_ATTR(rescan, 0200, NULL, pqi_host_rescan_store);
static DEVICE_ATTR(lockup_action, 0644, pqi_lockup_action_show,
pqi_lockup_action_store);
+static DEVICE_ATTR(enable_stream_detection, 0644,
+ pqi_host_enable_stream_detection_show,
+ pqi_host_enable_stream_detection_store);
static DEVICE_ATTR(enable_r5_writes, 0644,
pqi_host_enable_r5_writes_show, pqi_host_enable_r5_writes_store);
static DEVICE_ATTR(enable_r6_writes, 0644,
@@ -6793,6 +6824,7 @@ static struct device_attribute *pqi_shost_attrs[] = {
&dev_attr_vendor,
&dev_attr_rescan,
&dev_attr_lockup_action,
+ &dev_attr_enable_stream_detection,
&dev_attr_enable_r5_writes,
&dev_attr_enable_r6_writes,
NULL
next prev parent reply other threads:[~2020-12-08 20:27 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-08 19:36 [PATCH V2 00/25] smartpqi updates Don Brace
2020-12-08 19:36 ` [PATCH V2 01/25] smartpqi: add support for product id Don Brace
2020-12-08 19:36 ` [PATCH V2 02/25] smartpqi: refactor aio submission code Don Brace
2020-12-08 19:36 ` [PATCH V2 03/25] smartpqi: refactor build sg list code Don Brace
2020-12-08 19:36 ` [PATCH V2 04/25] smartpqi: add support for raid5 and raid6 writes Don Brace
2020-12-08 19:37 ` [PATCH V2 05/25] smartpqi: add support for raid1 writes Don Brace
2020-12-08 19:37 ` [PATCH V2 06/25] smartpqi: add support for BMIC sense feature cmd and feature bits Don Brace
2020-12-08 19:37 ` [PATCH V2 07/25] smartpqi: update AIO Sub Page 0x02 support Don Brace
2020-12-08 19:37 ` [PATCH V2 08/25] smartpqi: add support for long firmware version Don Brace
2020-12-08 19:37 ` [PATCH V2 09/25] smartpqi: align code with oob driver Don Brace
2020-12-08 19:37 ` [PATCH V2 10/25] smartpqi: add stream detection Don Brace
2020-12-08 19:37 ` Don Brace [this message]
2020-12-08 19:37 ` [PATCH V2 12/25] smartpqi: enable support for NVMe encryption Don Brace
2020-12-08 19:37 ` [PATCH V2 13/25] smartpqi: disable write_same for nvme hba disks Don Brace
2020-12-08 19:37 ` [PATCH V2 14/25] smartpqi: fix driver synchronization issues Don Brace
2020-12-08 19:38 ` [PATCH V2 15/25] smartpqi: fix host qdepth limit Don Brace
2020-12-08 19:38 ` [PATCH V2 16/25] smartpqi: convert snprintf to scnprintf Don Brace
2020-12-08 19:38 ` [PATCH V2 17/25] smartpqi: change timing of release of QRM memory during OFA Don Brace
2020-12-08 19:38 ` [PATCH V2 18/25] smartpqi: return busy indication for IOCTLs when ofa is active Don Brace
2020-12-08 19:38 ` [PATCH V2 19/25] smartpqi: add phy id support for the physical drives Don Brace
2020-12-08 19:38 ` [PATCH V2 20/25] smartpqi: update sas initiator_port_protocols and target_port_protocols Don Brace
2020-12-08 19:38 ` [PATCH V2 21/25] smartpqi: add additional logging for LUN resets Don Brace
2020-12-08 19:38 ` [PATCH V2 22/25] smartpqi: update enclosure identifier in sysf Don Brace
2020-12-08 19:38 ` [PATCH V2 23/25] smartpqi: correct system hangs when resuming from hibernation Don Brace
2020-12-08 19:38 ` [PATCH V2 24/25] smartpqi: add new pci ids Don Brace
2020-12-08 19:39 ` [PATCH V2 25/25] smartpqi: update version to 2.1.6-005 Don Brace
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