From: John Garry <john.garry@huawei.com>
To: <jejb@linux.vnet.ibm.com>, <martin.petersen@oracle.com>
Cc: <linux-scsi@vger.kernel.org>, <linuxarm@huawei.com>,
<linux-kernel@vger.kernel.org>,
Luo Jiaxing <luojiaxing@huawei.com>,
"John Garry" <john.garry@huawei.com>
Subject: [PATCH 05/18] scsi: hisi_sas: Add timestamp for a debugfs dump
Date: Tue, 22 Oct 2019 00:22:02 +0800 [thread overview]
Message-ID: <1571674935-108326-6-git-send-email-john.garry@huawei.com> (raw)
In-Reply-To: <1571674935-108326-1-git-send-email-john.garry@huawei.com>
From: Luo Jiaxing <luojiaxing@huawei.com>
It's useful to know when the dump occurred, so add a timestamp file for
this.
Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
---
drivers/scsi/hisi_sas/hisi_sas.h | 2 ++
drivers/scsi/hisi_sas/hisi_sas_main.c | 7 +++++++
2 files changed, 9 insertions(+)
diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h
index 83232e8472fb..7069dae4cec9 100644
--- a/drivers/scsi/hisi_sas/hisi_sas.h
+++ b/drivers/scsi/hisi_sas/hisi_sas.h
@@ -21,6 +21,7 @@
#include <linux/platform_device.h>
#include <linux/property.h>
#include <linux/regmap.h>
+#include <linux/timer.h>
#include <scsi/sas_ata.h>
#include <scsi/libsas.h>
@@ -410,6 +411,7 @@ struct hisi_hba {
struct hisi_sas_iost *debugfs_iost;
struct hisi_sas_itct *debugfs_itct;
u64 *debugfs_iost_cache;
+ u64 debugfs_timestamp;
u64 *debugfs_itct_cache;
struct dentry *debugfs_dir;
diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index a7bac5dc389a..a983d08c03aa 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -3194,6 +3194,7 @@ static const struct file_operations hisi_sas_debugfs_itct_cache_fops = {
static void hisi_sas_debugfs_create_files(struct hisi_hba *hisi_hba)
{
+ u64 *debugfs_timestamp;
struct dentry *dump_dentry;
struct dentry *dentry;
char name[256];
@@ -3201,10 +3202,14 @@ static void hisi_sas_debugfs_create_files(struct hisi_hba *hisi_hba)
int c;
int d;
+ debugfs_timestamp = &hisi_hba->debugfs_timestamp;
/* Create dump dir inside device dir */
dump_dentry = debugfs_create_dir("dump", hisi_hba->debugfs_dir);
hisi_hba->debugfs_dump_dentry = dump_dentry;
+ debugfs_create_u64("timestamp", 0400, dump_dentry,
+ debugfs_timestamp);
+
debugfs_create_file("global", 0400, dump_dentry, hisi_hba,
&hisi_sas_debugfs_global_fops);
@@ -3684,7 +3689,9 @@ void hisi_sas_debugfs_work_handler(struct work_struct *work)
{
struct hisi_hba *hisi_hba =
container_of(work, struct hisi_hba, debugfs_work);
+ u64 timestamp = local_clock() / NSEC_PER_MSEC;
+ hisi_hba->debugfs_timestamp = timestamp;
if (hisi_hba->debugfs_snapshot)
return;
hisi_hba->debugfs_snapshot = true;
--
2.17.1
next prev parent reply other threads:[~2019-10-21 16:26 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-21 16:21 [PATCH 00/18] hisi_sas: Misc patches, mostly debugfs John Garry
2019-10-21 16:21 ` [PATCH 01/18] scsi: hisi_sas: Don't create debugfs dump folder twice John Garry
2019-10-21 16:21 ` [PATCH 02/18] scsi: hisi_sas: Set the BIST init value before enabling BIST John Garry
2019-10-21 16:22 ` [PATCH 03/18] scsi: hisi_sas: use wait_for_completion_timeout() when clearing ITCT John Garry
2019-10-21 16:22 ` [PATCH 04/18] scsi: hisi_sas: Replace in_softirq() check in hisi_sas_task_exec() John Garry
2019-10-21 16:22 ` John Garry [this message]
2019-10-24 9:20 ` [PATCH 05/18] scsi: hisi_sas: Add timestamp for a debugfs dump kbuild test robot
2019-10-24 9:54 ` John Garry
2019-10-21 16:22 ` [PATCH 06/18] scsi: hisi_sas: Add debugfs file structure for CQ John Garry
2019-10-21 16:22 ` [PATCH 07/18] scsi: hisi_sas: Add debugfs file structure for DQ John Garry
2019-10-21 16:22 ` [PATCH 08/18] scsi: hisi_sas: Add debugfs file structure for registers John Garry
2019-10-21 16:22 ` [PATCH 09/18] scsi: hisi_sas: Add debugfs file structure for port John Garry
2019-10-21 16:22 ` [PATCH 10/18] scsi: hisi_sas: Add debugfs file structure for IOST John Garry
2019-10-21 16:22 ` [PATCH 11/18] scsi: hisi_sas: Add debugfs file structure for ITCT John Garry
2019-10-21 16:22 ` [PATCH 12/18] scsi: hisi_sas: Add debugfs file structure for IOST cache John Garry
2019-10-21 16:22 ` [PATCH 13/18] scsi: hisi_sas: Add debugfs file structure for ITCT cache John Garry
2019-10-21 16:22 ` [PATCH 14/18] scsi: hisi_sas: Allocate memory for multiple dumps of debugfs John Garry
2019-10-21 16:22 ` [PATCH 15/18] scsi: hisi_sas: Add module parameter for debugfs dump count John Garry
2019-10-21 16:22 ` [PATCH 16/18] scsi: hisi_sas: Add ability to have multiple debugfs dumps John Garry
2019-10-21 16:22 ` [PATCH 17/18] scsi: hisi_sas: Delete the debugfs folder of hisi_sas when the probe fails John Garry
2019-10-21 16:22 ` [PATCH 18/18] scsi: hisi_sas: Record the phy down event in debugfs John Garry
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