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 v2 13/18] scsi: hisi_sas: Add debugfs file structure for ITCT cache
Date: Thu, 24 Oct 2019 22:08:20 +0800 [thread overview]
Message-ID: <1571926105-74636-14-git-send-email-john.garry@huawei.com> (raw)
In-Reply-To: <1571926105-74636-1-git-send-email-john.garry@huawei.com>
From: Luo Jiaxing <luojiaxing@huawei.com>
Create a file structure which was used to save the memory address for
ITCT cache at debugfs. This structure is bound to the corresponding debugfs
file, it can help callback function of debugfs file to get what it need.
Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
---
drivers/scsi/hisi_sas/hisi_sas.h | 6 +++++-
drivers/scsi/hisi_sas/hisi_sas_main.c | 16 ++++++++--------
2 files changed, 13 insertions(+), 9 deletions(-)
diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h
index 4e32d1b77d16..a608b2bef0b4 100644
--- a/drivers/scsi/hisi_sas/hisi_sas.h
+++ b/drivers/scsi/hisi_sas/hisi_sas.h
@@ -355,6 +355,10 @@ struct hisi_sas_debugfs_iost_cache {
struct hisi_sas_iost_itct_cache *cache;
};
+struct hisi_sas_debugfs_itct_cache {
+ struct hisi_sas_iost_itct_cache *cache;
+};
+
struct hisi_hba {
/* This must be the first element, used by SHOST_TO_SAS_HA */
struct sas_ha_struct *p;
@@ -444,7 +448,7 @@ struct hisi_hba {
struct hisi_sas_debugfs_itct debugfs_itct;
u64 debugfs_timestamp;
struct hisi_sas_debugfs_iost_cache debugfs_iost_cache;
- u64 *debugfs_itct_cache;
+ struct hisi_sas_debugfs_itct_cache debugfs_itct_cache;
struct dentry *debugfs_dir;
struct dentry *debugfs_dump_dentry;
diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index 499a733f9a5a..5014a7a21aa4 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -2781,7 +2781,7 @@ static void hisi_sas_debugfs_snapshot_ras_reg(struct hisi_hba *hisi_hba)
static void hisi_sas_debugfs_snapshot_itct_reg(struct hisi_hba *hisi_hba)
{
- void *cachebuf = hisi_hba->debugfs_itct_cache;
+ void *cachebuf = hisi_hba->debugfs_itct_cache.cache;
void *databuf = hisi_hba->debugfs_itct.itct;
struct hisi_sas_itct *itct;
int i;
@@ -3155,9 +3155,8 @@ static const struct file_operations hisi_sas_debugfs_itct_fops = {
static int hisi_sas_debugfs_itct_cache_show(struct seq_file *s, void *p)
{
- struct hisi_hba *hisi_hba = s->private;
- struct hisi_sas_iost_itct_cache *itct_cache =
- (struct hisi_sas_iost_itct_cache *)hisi_hba->debugfs_itct_cache;
+ struct hisi_sas_debugfs_itct_cache *debugfs_itct_cache = s->private;
+ struct hisi_sas_iost_itct_cache *itct_cache = debugfs_itct_cache->cache;
u32 cache_size = HISI_SAS_IOST_ITCT_CACHE_DW_SZ * 4;
int i, tab_idx;
__le64 *itct;
@@ -3257,7 +3256,8 @@ static void hisi_sas_debugfs_create_files(struct hisi_hba *hisi_hba)
&hisi_hba->debugfs_itct,
&hisi_sas_debugfs_itct_fops);
- debugfs_create_file("itct_cache", 0400, dump_dentry, hisi_hba,
+ debugfs_create_file("itct_cache", 0400, dump_dentry,
+ &hisi_hba->debugfs_itct_cache,
&hisi_sas_debugfs_itct_cache_fops);
debugfs_create_file("axi", 0400, dump_dentry,
@@ -3717,7 +3717,7 @@ static void hisi_sas_debugfs_release(struct hisi_hba *hisi_hba)
int i;
devm_kfree(dev, hisi_hba->debugfs_iost_cache.cache);
- devm_kfree(dev, hisi_hba->debugfs_itct_cache);
+ devm_kfree(dev, hisi_hba->debugfs_itct_cache.cache);
devm_kfree(dev, hisi_hba->debugfs_iost.iost);
for (i = 0; i < hisi_hba->queue_count; i++)
@@ -3800,8 +3800,8 @@ static int hisi_sas_debugfs_alloc(struct hisi_hba *hisi_hba)
sz = HISI_SAS_IOST_ITCT_CACHE_NUM *
sizeof(struct hisi_sas_iost_itct_cache);
- hisi_hba->debugfs_itct_cache = devm_kmalloc(dev, sz, GFP_KERNEL);
- if (!hisi_hba->debugfs_itct_cache)
+ hisi_hba->debugfs_itct_cache.cache = devm_kmalloc(dev, sz, GFP_KERNEL);
+ if (!hisi_hba->debugfs_itct_cache.cache)
goto fail;
/* New memory allocation must be locate before itct */
--
2.17.1
next prev parent reply other threads:[~2019-10-24 14:13 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-24 14:08 [PATCH v2 00/18] hisi_sas: Misc patches, mostly debugfs John Garry
2019-10-24 14:08 ` [PATCH v2 01/18] scsi: hisi_sas: Don't create debugfs dump folder twice John Garry
2019-10-24 14:08 ` [PATCH v2 02/18] scsi: hisi_sas: Set the BIST init value before enabling BIST John Garry
2019-10-24 14:08 ` [PATCH v2 03/18] scsi: hisi_sas: use wait_for_completion_timeout() when clearing ITCT John Garry
2019-10-24 14:08 ` [PATCH v2 04/18] scsi: hisi_sas: Replace in_softirq() check in hisi_sas_task_exec() John Garry
2019-10-24 14:08 ` [PATCH v2 05/18] scsi: hisi_sas: Add timestamp for a debugfs dump John Garry
2019-10-24 14:08 ` [PATCH v2 06/18] scsi: hisi_sas: Add debugfs file structure for CQ John Garry
2019-10-24 14:08 ` [PATCH v2 07/18] scsi: hisi_sas: Add debugfs file structure for DQ John Garry
2019-10-24 14:08 ` [PATCH v2 08/18] scsi: hisi_sas: Add debugfs file structure for registers John Garry
2019-10-24 14:08 ` [PATCH v2 09/18] scsi: hisi_sas: Add debugfs file structure for port John Garry
2019-10-24 14:08 ` [PATCH v2 10/18] scsi: hisi_sas: Add debugfs file structure for IOST John Garry
2019-10-24 14:08 ` [PATCH v2 11/18] scsi: hisi_sas: Add debugfs file structure for ITCT John Garry
2019-10-24 14:08 ` [PATCH v2 12/18] scsi: hisi_sas: Add debugfs file structure for IOST cache John Garry
2019-10-24 14:08 ` John Garry [this message]
2019-10-24 14:08 ` [PATCH v2 14/18] scsi: hisi_sas: Allocate memory for multiple dumps of debugfs John Garry
2019-10-24 14:08 ` [PATCH v2 15/18] scsi: hisi_sas: Add module parameter for debugfs dump count John Garry
2019-10-24 14:08 ` [PATCH v2 16/18] scsi: hisi_sas: Add ability to have multiple debugfs dumps John Garry
2019-10-24 14:08 ` [PATCH v2 17/18] scsi: hisi_sas: Delete the debugfs folder of hisi_sas when the probe fails John Garry
2019-10-24 14:08 ` [PATCH v2 18/18] scsi: hisi_sas: Record the phy down event in debugfs John Garry
2019-10-25 1:31 ` [PATCH v2 00/18] hisi_sas: Misc patches, mostly debugfs Martin K. Petersen
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