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net: hns3: refactor dump intr of debugfs

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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@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiaran Zhang 2021-05-14 11:25:17 +08:00 committed by David S. Miller
parent d658ff34dd
commit 9149ca0f11
3 changed files with 25 additions and 10 deletions
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1
drivers/net/ethernet/hisilicon/hns3/hnae3.h
View file

@ -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,
};

8
drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
View file

@ -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>]",

26
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
View file

@ -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,