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Date: Fri, 14 May 2021 11:25:17 +0800
From: Huazhong Tan <tanhuazhong@...wei.com>
To: <davem@...emloft.net>, <kuba@...nel.org>
CC: <netdev@...r.kernel.org>, <salil.mehta@...wei.com>,
<yisen.zhuang@...wei.com>, <huangdaode@...wei.com>,
<linuxarm@...wei.com>, Jiaran Zhang <zhangjiaran@...wei.com>,
Huazhong Tan <tanhuazhong@...wei.com>
Subject: [PATCH net-next 09/12] net: hns3: refactor dump intr of debugfs
From: Jiaran Zhang <zhangjiaran@...wei.com>
Currently, the debugfs command for intr is implemented by
"echo xxxx > cmd", and record the information in dmesg. It's
unnecessary and heavy. To improve it, create a single file
"interrupt_info" for it, and query it by command "cat interrupt_info",
return the result to userspace, rather than record in dmesg.
The display style is below:
$cat interrupt_info
num_nic_msi: 65
num_roce_msi: 65
num_msi_used: 2
num_msi_left: 128
Signed-off-by: Jiaran Zhang <zhangjiaran@...wei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@...wei.com>
---
drivers/net/ethernet/hisilicon/hns3/hnae3.h | 1 +
drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c | 8 ++++++-
.../ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c | 26 ++++++++++++++--------
3 files changed, 25 insertions(+), 10 deletions(-)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
index 0a78ce2..aea6ddd 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
@@ -261,6 +261,7 @@ enum hnae3_dbg_cmd {
HNAE3_DBG_CMD_MAC_MC,
HNAE3_DBG_CMD_MNG_TBL,
HNAE3_DBG_CMD_LOOPBACK,
+ HNAE3_DBG_CMD_INTERRUPT_INFO,
HNAE3_DBG_CMD_UNKNOWN,
};
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
index d2e3965..0eb5eda 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
@@ -104,6 +104,13 @@ static struct hns3_dbg_cmd_info hns3_dbg_cmd[] = {
.buf_len = HNS3_DBG_READ_LEN,
.init = hns3_dbg_common_file_init,
},
+ {
+ .name = "interrupt_info",
+ .cmd = HNAE3_DBG_CMD_INTERRUPT_INFO,
+ .dentry = HNS3_DBG_DENTRY_COMMON,
+ .buf_len = HNS3_DBG_READ_LEN,
+ .init = hns3_dbg_common_file_init,
+ },
};
static struct hns3_dbg_cap_info hns3_dbg_cap[] = {
@@ -503,7 +510,6 @@ static void hns3_dbg_help(struct hnae3_handle *h)
dev_info(&h->pdev->dev, "dump ncl_config <offset> <length>(in hex)\n");
dev_info(&h->pdev->dev, "dump mac tnl status\n");
dev_info(&h->pdev->dev, "dump qs shaper [qs id]\n");
- dev_info(&h->pdev->dev, "dump intr\n");
memset(printf_buf, 0, HNS3_DBG_BUF_LEN);
strncat(printf_buf, "dump reg [[bios common] [ssu <port_id>]",
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
index 7c02973..c3d84a4b 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
@@ -1430,12 +1430,20 @@ static void hclge_dbg_dump_serv_info(struct hclge_dev *hdev)
hdev->serv_processed_cnt);
}
-static void hclge_dbg_dump_interrupt(struct hclge_dev *hdev)
+static int hclge_dbg_dump_interrupt(struct hclge_dev *hdev, char *buf, int len)
{
- dev_info(&hdev->pdev->dev, "num_nic_msi: %u\n", hdev->num_nic_msi);
- dev_info(&hdev->pdev->dev, "num_roce_msi: %u\n", hdev->num_roce_msi);
- dev_info(&hdev->pdev->dev, "num_msi_used: %u\n", hdev->num_msi_used);
- dev_info(&hdev->pdev->dev, "num_msi_left: %u\n", hdev->num_msi_left);
+ int pos = 0;
+
+ pos += scnprintf(buf + pos, len - pos, "num_nic_msi: %u\n",
+ hdev->num_nic_msi);
+ pos += scnprintf(buf + pos, len - pos, "num_roce_msi: %u\n",
+ hdev->num_roce_msi);
+ pos += scnprintf(buf + pos, len - pos, "num_msi_used: %u\n",
+ hdev->num_msi_used);
+ pos += scnprintf(buf + pos, len - pos, "num_msi_left: %u\n",
+ hdev->num_msi_left);
+
+ return 0;
}
static void hclge_dbg_get_m7_stats_info(struct hclge_dev *hdev)
@@ -1791,7 +1799,6 @@ int hclge_dbg_run_cmd(struct hnae3_handle *handle, const char *cmd_buf)
{
#define DUMP_REG "dump reg"
#define DUMP_TM_MAP "dump tm map"
-#define DUMP_INTERRUPT "dump intr"
struct hclge_vport *vport = hclge_get_vport(handle);
struct hclge_dev *hdev = vport->back;
@@ -1826,9 +1833,6 @@ int hclge_dbg_run_cmd(struct hnae3_handle *handle, const char *cmd_buf)
} else if (strncmp(cmd_buf, "dump qs shaper", 14) == 0) {
hclge_dbg_dump_qs_shaper(hdev,
&cmd_buf[sizeof("dump qs shaper")]);
- } else if (strncmp(cmd_buf, DUMP_INTERRUPT,
- strlen(DUMP_INTERRUPT)) == 0) {
- hclge_dbg_dump_interrupt(hdev);
} else {
dev_info(&hdev->pdev->dev, "unknown command\n");
return -EINVAL;
@@ -1866,6 +1870,10 @@ static const struct hclge_dbg_func hclge_dbg_cmd_func[] = {
.cmd = HNAE3_DBG_CMD_LOOPBACK,
.dbg_dump = hclge_dbg_dump_loopback,
},
+ {
+ .cmd = HNAE3_DBG_CMD_INTERRUPT_INFO,
+ .dbg_dump = hclge_dbg_dump_interrupt,
+ },
};
int hclge_dbg_read_cmd(struct hnae3_handle *handle, enum hnae3_dbg_cmd cmd,
--
2.7.4
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