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 14/18] scsi: hisi_sas: Allocate memory for multiple dumps of debugfs
Date: Thu, 24 Oct 2019 22:08:21 +0800 [thread overview]
Message-ID: <1571926105-74636-15-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>
We add multiple dumps for debugfs, but only allocate memory this time and
only dump #0.
Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
---
drivers/scsi/hisi_sas/hisi_sas.h | 19 +++--
drivers/scsi/hisi_sas/hisi_sas_main.c | 110 +++++++++++++++-----------
2 files changed, 73 insertions(+), 56 deletions(-)
diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h
index a608b2bef0b4..b4c6bec4b92c 100644
--- a/drivers/scsi/hisi_sas/hisi_sas.h
+++ b/drivers/scsi/hisi_sas/hisi_sas.h
@@ -323,6 +323,8 @@ struct hisi_sas_hw {
const struct hisi_sas_debugfs_reg *debugfs_reg_port;
};
+#define HISI_SAS_MAX_DEBUGFS_DUMP (50)
+
struct hisi_sas_debugfs_cq {
struct hisi_sas_cq *cq;
void *complete_hdr;
@@ -440,15 +442,16 @@ struct hisi_hba {
/* debugfs memories */
/* Put Global AXI and RAS Register into register array */
- struct hisi_sas_debugfs_regs debugfs_regs[DEBUGFS_REGS_NUM];
- struct hisi_sas_debugfs_port debugfs_port_reg[HISI_SAS_MAX_PHYS];
- struct hisi_sas_debugfs_cq debugfs_cq[HISI_SAS_MAX_QUEUES];
- struct hisi_sas_debugfs_dq debugfs_dq[HISI_SAS_MAX_QUEUES];
- struct hisi_sas_debugfs_iost debugfs_iost;
- struct hisi_sas_debugfs_itct debugfs_itct;
+ struct hisi_sas_debugfs_regs debugfs_regs[HISI_SAS_MAX_DEBUGFS_DUMP][DEBUGFS_REGS_NUM];
+ struct hisi_sas_debugfs_port debugfs_port_reg[HISI_SAS_MAX_DEBUGFS_DUMP][HISI_SAS_MAX_PHYS];
+ struct hisi_sas_debugfs_cq debugfs_cq[HISI_SAS_MAX_DEBUGFS_DUMP][HISI_SAS_MAX_QUEUES];
+ struct hisi_sas_debugfs_dq debugfs_dq[HISI_SAS_MAX_DEBUGFS_DUMP][HISI_SAS_MAX_QUEUES];
+ struct hisi_sas_debugfs_iost debugfs_iost[HISI_SAS_MAX_DEBUGFS_DUMP];
+ struct hisi_sas_debugfs_itct debugfs_itct[HISI_SAS_MAX_DEBUGFS_DUMP];
+ struct hisi_sas_debugfs_iost_cache debugfs_iost_cache[HISI_SAS_MAX_DEBUGFS_DUMP];
+ struct hisi_sas_debugfs_itct_cache debugfs_itct_cache[HISI_SAS_MAX_DEBUGFS_DUMP];
+
u64 debugfs_timestamp;
- struct hisi_sas_debugfs_iost_cache debugfs_iost_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 5014a7a21aa4..b599595ea095 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -1573,7 +1573,7 @@ static int hisi_sas_controller_reset(struct hisi_hba *hisi_hba)
struct Scsi_Host *shost = hisi_hba->shost;
int rc;
- if (hisi_sas_debugfs_enable && hisi_hba->debugfs_itct.itct)
+ if (hisi_sas_debugfs_enable && hisi_hba->debugfs_itct[0].itct)
queue_work(hisi_hba->wq, &hisi_hba->debugfs_work);
if (!hisi_hba->hw->soft_reset)
@@ -2065,7 +2065,7 @@ _hisi_sas_internal_task_abort(struct hisi_hba *hisi_hba,
/* Internal abort timed out */
if ((task->task_state_flags & SAS_TASK_STATE_ABORTED)) {
- if (hisi_sas_debugfs_enable && hisi_hba->debugfs_itct.itct)
+ if (hisi_sas_debugfs_enable && hisi_hba->debugfs_itct[0].itct)
queue_work(hisi_hba->wq, &hisi_hba->debugfs_work);
if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) {
@@ -2700,7 +2700,7 @@ static void hisi_sas_debugfs_snapshot_cq_reg(struct hisi_hba *hisi_hba)
int i;
for (i = 0; i < hisi_hba->queue_count; i++)
- memcpy(hisi_hba->debugfs_cq[i].complete_hdr,
+ memcpy(hisi_hba->debugfs_cq[0][i].complete_hdr,
hisi_hba->complete_hdr[i],
HISI_SAS_QUEUE_SLOTS * queue_entry_size);
}
@@ -2714,7 +2714,7 @@ static void hisi_sas_debugfs_snapshot_dq_reg(struct hisi_hba *hisi_hba)
struct hisi_sas_cmd_hdr *debugfs_cmd_hdr, *cmd_hdr;
int j;
- debugfs_cmd_hdr = hisi_hba->debugfs_dq[i].hdr;
+ debugfs_cmd_hdr = hisi_hba->debugfs_dq[0][i].hdr;
cmd_hdr = hisi_hba->cmd_hdr[i];
for (j = 0; j < HISI_SAS_QUEUE_SLOTS; j++)
@@ -2732,7 +2732,7 @@ static void hisi_sas_debugfs_snapshot_port_reg(struct hisi_hba *hisi_hba)
u32 *databuf;
for (phy_cnt = 0; phy_cnt < hisi_hba->n_phy; phy_cnt++) {
- databuf = hisi_hba->debugfs_port_reg[phy_cnt].data;
+ databuf = hisi_hba->debugfs_port_reg[0][phy_cnt].data;
for (i = 0; i < port->count; i++, databuf++) {
offset = port->base_off + 4 * i;
*databuf = port->read_port_reg(hisi_hba, phy_cnt,
@@ -2743,7 +2743,7 @@ static void hisi_sas_debugfs_snapshot_port_reg(struct hisi_hba *hisi_hba)
static void hisi_sas_debugfs_snapshot_global_reg(struct hisi_hba *hisi_hba)
{
- u32 *databuf = hisi_hba->debugfs_regs[DEBUGFS_GLOBAL].data;
+ u32 *databuf = hisi_hba->debugfs_regs[0][DEBUGFS_GLOBAL].data;
const struct hisi_sas_hw *hw = hisi_hba->hw;
const struct hisi_sas_debugfs_reg *global =
hw->debugfs_reg_array[DEBUGFS_GLOBAL];
@@ -2755,7 +2755,7 @@ static void hisi_sas_debugfs_snapshot_global_reg(struct hisi_hba *hisi_hba)
static void hisi_sas_debugfs_snapshot_axi_reg(struct hisi_hba *hisi_hba)
{
- u32 *databuf = hisi_hba->debugfs_regs[DEBUGFS_AXI].data;
+ u32 *databuf = hisi_hba->debugfs_regs[0][DEBUGFS_AXI].data;
const struct hisi_sas_hw *hw = hisi_hba->hw;
const struct hisi_sas_debugfs_reg *axi =
hw->debugfs_reg_array[DEBUGFS_AXI];
@@ -2768,7 +2768,7 @@ static void hisi_sas_debugfs_snapshot_axi_reg(struct hisi_hba *hisi_hba)
static void hisi_sas_debugfs_snapshot_ras_reg(struct hisi_hba *hisi_hba)
{
- u32 *databuf = hisi_hba->debugfs_regs[DEBUGFS_RAS].data;
+ u32 *databuf = hisi_hba->debugfs_regs[0][DEBUGFS_RAS].data;
const struct hisi_sas_hw *hw = hisi_hba->hw;
const struct hisi_sas_debugfs_reg *ras =
hw->debugfs_reg_array[DEBUGFS_RAS];
@@ -2781,8 +2781,8 @@ 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.cache;
- void *databuf = hisi_hba->debugfs_itct.itct;
+ void *cachebuf = hisi_hba->debugfs_itct_cache[0].cache;
+ void *databuf = hisi_hba->debugfs_itct[0].itct;
struct hisi_sas_itct *itct;
int i;
@@ -2800,8 +2800,8 @@ static void hisi_sas_debugfs_snapshot_itct_reg(struct hisi_hba *hisi_hba)
static void hisi_sas_debugfs_snapshot_iost_reg(struct hisi_hba *hisi_hba)
{
int max_command_entries = HISI_SAS_MAX_COMMANDS;
- void *cachebuf = hisi_hba->debugfs_iost_cache.cache;
- void *databuf = hisi_hba->debugfs_iost.iost;
+ void *cachebuf = hisi_hba->debugfs_iost_cache[0].cache;
+ void *databuf = hisi_hba->debugfs_iost[0].iost;
struct hisi_sas_iost *iost;
int i;
@@ -3211,7 +3211,7 @@ static void hisi_sas_debugfs_create_files(struct hisi_hba *hisi_hba)
debugfs_timestamp);
debugfs_create_file("global", 0400, dump_dentry,
- &hisi_hba->debugfs_regs[DEBUGFS_GLOBAL],
+ &hisi_hba->debugfs_regs[0][DEBUGFS_GLOBAL],
&hisi_sas_debugfs_global_fops);
/* Create port dir and files */
@@ -3220,7 +3220,7 @@ static void hisi_sas_debugfs_create_files(struct hisi_hba *hisi_hba)
snprintf(name, 256, "%d", p);
debugfs_create_file(name, 0400, dentry,
- &hisi_hba->debugfs_port_reg[p],
+ &hisi_hba->debugfs_port_reg[0][p],
&hisi_sas_debugfs_port_fops);
}
@@ -3230,7 +3230,7 @@ static void hisi_sas_debugfs_create_files(struct hisi_hba *hisi_hba)
snprintf(name, 256, "%d", c);
debugfs_create_file(name, 0400, dentry,
- &hisi_hba->debugfs_cq[c],
+ &hisi_hba->debugfs_cq[0][c],
&hisi_sas_debugfs_cq_fops);
}
@@ -3240,32 +3240,32 @@ static void hisi_sas_debugfs_create_files(struct hisi_hba *hisi_hba)
snprintf(name, 256, "%d", d);
debugfs_create_file(name, 0400, dentry,
- &hisi_hba->debugfs_dq[d],
+ &hisi_hba->debugfs_dq[0][d],
&hisi_sas_debugfs_dq_fops);
}
debugfs_create_file("iost", 0400, dump_dentry,
- &hisi_hba->debugfs_iost,
+ &hisi_hba->debugfs_iost[0],
&hisi_sas_debugfs_iost_fops);
debugfs_create_file("iost_cache", 0400, dump_dentry,
- &hisi_hba->debugfs_iost_cache,
+ &hisi_hba->debugfs_iost_cache[0],
&hisi_sas_debugfs_iost_cache_fops);
debugfs_create_file("itct", 0400, dump_dentry,
- &hisi_hba->debugfs_itct,
+ &hisi_hba->debugfs_itct[0],
&hisi_sas_debugfs_itct_fops);
debugfs_create_file("itct_cache", 0400, dump_dentry,
- &hisi_hba->debugfs_itct_cache,
+ &hisi_hba->debugfs_itct_cache[0],
&hisi_sas_debugfs_itct_cache_fops);
debugfs_create_file("axi", 0400, dump_dentry,
- &hisi_hba->debugfs_regs[DEBUGFS_AXI],
+ &hisi_hba->debugfs_regs[0][DEBUGFS_AXI],
&hisi_sas_debugfs_axi_fops);
debugfs_create_file("ras", 0400, dump_dentry,
- &hisi_hba->debugfs_regs[DEBUGFS_RAS],
+ &hisi_hba->debugfs_regs[0][DEBUGFS_RAS],
&hisi_sas_debugfs_ras_fops);
return;
@@ -3711,38 +3711,40 @@ void hisi_sas_debugfs_work_handler(struct work_struct *work)
}
EXPORT_SYMBOL_GPL(hisi_sas_debugfs_work_handler);
-static void hisi_sas_debugfs_release(struct hisi_hba *hisi_hba)
+static void hisi_sas_debugfs_release(struct hisi_hba *hisi_hba, int dump_index)
{
struct device *dev = hisi_hba->dev;
int i;
- devm_kfree(dev, hisi_hba->debugfs_iost_cache.cache);
- devm_kfree(dev, hisi_hba->debugfs_itct_cache.cache);
- devm_kfree(dev, hisi_hba->debugfs_iost.iost);
+ devm_kfree(dev, hisi_hba->debugfs_iost_cache[dump_index].cache);
+ devm_kfree(dev, hisi_hba->debugfs_itct_cache[dump_index].cache);
+ devm_kfree(dev, hisi_hba->debugfs_iost[dump_index].iost);
+ devm_kfree(dev, hisi_hba->debugfs_itct[dump_index].itct);
for (i = 0; i < hisi_hba->queue_count; i++)
- devm_kfree(dev, hisi_hba->debugfs_dq[i].hdr);
+ devm_kfree(dev, hisi_hba->debugfs_dq[dump_index][i].hdr);
for (i = 0; i < hisi_hba->queue_count; i++)
- devm_kfree(dev, hisi_hba->debugfs_cq[i].complete_hdr);
+ devm_kfree(dev,
+ hisi_hba->debugfs_cq[dump_index][i].complete_hdr);
for (i = 0; i < DEBUGFS_REGS_NUM; i++)
- devm_kfree(dev, hisi_hba->debugfs_regs[i].data);
+ devm_kfree(dev, hisi_hba->debugfs_regs[dump_index][i].data);
for (i = 0; i < hisi_hba->n_phy; i++)
- devm_kfree(dev, hisi_hba->debugfs_port_reg[i].data);
+ devm_kfree(dev, hisi_hba->debugfs_port_reg[dump_index][i].data);
}
-static int hisi_sas_debugfs_alloc(struct hisi_hba *hisi_hba)
+static int hisi_sas_debugfs_alloc(struct hisi_hba *hisi_hba, int dump_index)
{
const struct hisi_sas_hw *hw = hisi_hba->hw;
struct device *dev = hisi_hba->dev;
- int p, c, d, r;
+ int p, c, d, r, i;
size_t sz;
for (r = 0; r < DEBUGFS_REGS_NUM; r++) {
struct hisi_sas_debugfs_regs *regs =
- &hisi_hba->debugfs_regs[r];
+ &hisi_hba->debugfs_regs[dump_index][r];
sz = hw->debugfs_reg_array[r]->count * 4;
regs->data = devm_kmalloc(dev, sz, GFP_KERNEL);
@@ -3754,7 +3756,7 @@ static int hisi_sas_debugfs_alloc(struct hisi_hba *hisi_hba)
sz = hw->debugfs_reg_port->count * 4;
for (p = 0; p < hisi_hba->n_phy; p++) {
struct hisi_sas_debugfs_port *port =
- &hisi_hba->debugfs_port_reg[p];
+ &hisi_hba->debugfs_port_reg[dump_index][p];
port->data = devm_kmalloc(dev, sz, GFP_KERNEL);
if (!port->data)
@@ -3765,7 +3767,7 @@ static int hisi_sas_debugfs_alloc(struct hisi_hba *hisi_hba)
sz = hw->complete_hdr_size * HISI_SAS_QUEUE_SLOTS;
for (c = 0; c < hisi_hba->queue_count; c++) {
struct hisi_sas_debugfs_cq *cq =
- &hisi_hba->debugfs_cq[c];
+ &hisi_hba->debugfs_cq[dump_index][c];
cq->complete_hdr = devm_kmalloc(dev, sz, GFP_KERNEL);
if (!cq->complete_hdr)
@@ -3776,7 +3778,7 @@ static int hisi_sas_debugfs_alloc(struct hisi_hba *hisi_hba)
sz = sizeof(struct hisi_sas_cmd_hdr) * HISI_SAS_QUEUE_SLOTS;
for (d = 0; d < hisi_hba->queue_count; d++) {
struct hisi_sas_debugfs_dq *dq =
- &hisi_hba->debugfs_dq[d];
+ &hisi_hba->debugfs_dq[dump_index][d];
dq->hdr = devm_kmalloc(dev, sz, GFP_KERNEL);
if (!dq->hdr)
@@ -3786,34 +3788,39 @@ static int hisi_sas_debugfs_alloc(struct hisi_hba *hisi_hba)
sz = HISI_SAS_MAX_COMMANDS * sizeof(struct hisi_sas_iost);
- hisi_hba->debugfs_iost.iost = devm_kmalloc(dev, sz, GFP_KERNEL);
- if (!hisi_hba->debugfs_iost.iost)
+ hisi_hba->debugfs_iost[dump_index].iost =
+ devm_kmalloc(dev, sz, GFP_KERNEL);
+ if (!hisi_hba->debugfs_iost[dump_index].iost)
goto fail;
sz = HISI_SAS_IOST_ITCT_CACHE_NUM *
sizeof(struct hisi_sas_iost_itct_cache);
- hisi_hba->debugfs_iost_cache.cache = devm_kmalloc(dev, sz, GFP_KERNEL);
- if (!hisi_hba->debugfs_iost_cache.cache)
+ hisi_hba->debugfs_iost_cache[dump_index].cache =
+ devm_kmalloc(dev, sz, GFP_KERNEL);
+ if (!hisi_hba->debugfs_iost_cache[dump_index].cache)
goto fail;
sz = HISI_SAS_IOST_ITCT_CACHE_NUM *
sizeof(struct hisi_sas_iost_itct_cache);
- hisi_hba->debugfs_itct_cache.cache = devm_kmalloc(dev, sz, GFP_KERNEL);
- if (!hisi_hba->debugfs_itct_cache.cache)
+ hisi_hba->debugfs_itct_cache[dump_index].cache =
+ devm_kmalloc(dev, sz, GFP_KERNEL);
+ if (!hisi_hba->debugfs_itct_cache[dump_index].cache)
goto fail;
/* New memory allocation must be locate before itct */
sz = HISI_SAS_MAX_ITCT_ENTRIES * sizeof(struct hisi_sas_itct);
- hisi_hba->debugfs_itct.itct = devm_kmalloc(dev, sz, GFP_KERNEL);
- if (!hisi_hba->debugfs_itct.itct)
+ hisi_hba->debugfs_itct[dump_index].itct =
+ devm_kmalloc(dev, sz, GFP_KERNEL);
+ if (!hisi_hba->debugfs_itct[dump_index].itct)
goto fail;
return 0;
fail:
- hisi_sas_debugfs_release(hisi_hba);
+ for (i = 0; i < HISI_SAS_MAX_DEBUGFS_DUMP; i++)
+ hisi_sas_debugfs_release(hisi_hba, i);
return -ENOMEM;
}
@@ -3848,6 +3855,7 @@ static void hisi_sas_debugfs_bist_init(struct hisi_hba *hisi_hba)
void hisi_sas_debugfs_init(struct hisi_hba *hisi_hba)
{
struct device *dev = hisi_hba->dev;
+ int i;
hisi_hba->debugfs_dir = debugfs_create_dir(dev_name(dev),
hisi_sas_debugfs_dir);
@@ -3859,9 +3867,15 @@ void hisi_sas_debugfs_init(struct hisi_hba *hisi_hba)
/* create bist structures */
hisi_sas_debugfs_bist_init(hisi_hba);
- if (hisi_sas_debugfs_alloc(hisi_hba)) {
- debugfs_remove_recursive(hisi_hba->debugfs_dir);
- dev_dbg(dev, "failed to init debugfs!\n");
+ hisi_hba->debugfs_dump_dentry =
+ debugfs_create_dir("dump", hisi_hba->debugfs_dir);
+
+ for (i = 0; i < HISI_SAS_MAX_DEBUGFS_DUMP; i++) {
+ if (hisi_sas_debugfs_alloc(hisi_hba, i)) {
+ debugfs_remove_recursive(hisi_hba->debugfs_dir);
+ dev_dbg(dev, "failed to init debugfs!\n");
+ break;
+ }
}
}
EXPORT_SYMBOL_GPL(hisi_sas_debugfs_init);
--
2.17.1
next prev parent reply other threads:[~2019-10-24 14:12 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 ` [PATCH v2 13/18] scsi: hisi_sas: Add debugfs file structure for ITCT cache John Garry
2019-10-24 14:08 ` John Garry [this message]
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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