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Message-ID: <1620962720-62216-8-git-send-email-tanhuazhong@huawei.com>
Date: Fri, 14 May 2021 11:25:15 +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>, Yufeng Mo <moyufeng@...wei.com>,
Huazhong Tan <tanhuazhong@...wei.com>
Subject: [PATCH net-next 07/12] net: hns3: refactor dump mng tbl of debugfs
From: Yufeng Mo <moyufeng@...wei.com>
Currently, the debugfs command for mng tbl is implemented by
"echo xxxx > cmd", and record the information in dmesg. It's
unnecessary and heavy. To improve it, create a single file
"mng_tbl" for it, and query it by command "cat mng_tbl",
return the result to userspace, rather than record in dmesg.
The display style is below:
$ cat mng_tbl
entry mac_addr mask ether mask vlan mask i_map ...
00 00:00:00:00:00:00 0 88cc 0 0000 1 0f ...
Signed-off-by: Yufeng Mo <moyufeng@...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 | 80 ++++++++++------------
.../ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h | 1 -
4 files changed, 45 insertions(+), 45 deletions(-)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
index ce3910f..a2033cb 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
@@ -259,6 +259,7 @@ enum hnae3_dbg_cmd {
HNAE3_DBG_CMD_RX_BD,
HNAE3_DBG_CMD_MAC_UC,
HNAE3_DBG_CMD_MAC_MC,
+ HNAE3_DBG_CMD_MNG_TBL,
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 5e02786..4af997d 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
@@ -90,6 +90,13 @@ static struct hns3_dbg_cmd_info hns3_dbg_cmd[] = {
.buf_len = HNS3_DBG_READ_LEN,
.init = hns3_dbg_common_file_init,
},
+ {
+ .name = "mng_tbl",
+ .cmd = HNAE3_DBG_CMD_MNG_TBL,
+ .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[] = {
@@ -484,7 +491,6 @@ static void hns3_dbg_help(struct hnae3_handle *h)
dev_info(&h->pdev->dev, "dump qos pause cfg\n");
dev_info(&h->pdev->dev, "dump qos pri map\n");
dev_info(&h->pdev->dev, "dump qos buf cfg\n");
- dev_info(&h->pdev->dev, "dump mng tbl\n");
dev_info(&h->pdev->dev, "dump reset info\n");
dev_info(&h->pdev->dev, "dump m7 info\n");
dev_info(&h->pdev->dev, "dump ncl_config <offset> <length>(in hex)\n");
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
index ea0d43f..613730f 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
@@ -1212,24 +1212,19 @@ static void hclge_dbg_dump_qos_buf_cfg(struct hclge_dev *hdev)
"dump qos buf cfg fail(0x%x), ret = %d\n", cmd, ret);
}
-static void hclge_dbg_dump_mng_table(struct hclge_dev *hdev)
+static int hclge_dbg_dump_mng_table(struct hclge_dev *hdev, char *buf, int len)
{
struct hclge_mac_ethertype_idx_rd_cmd *req0;
- char printf_buf[HCLGE_DBG_BUF_LEN];
struct hclge_desc desc;
u32 msg_egress_port;
+ int pos = 0;
int ret, i;
- dev_info(&hdev->pdev->dev, "mng tab:\n");
- memset(printf_buf, 0, HCLGE_DBG_BUF_LEN);
- strncat(printf_buf,
- "entry|mac_addr |mask|ether|mask|vlan|mask",
- HCLGE_DBG_BUF_LEN - 1);
- strncat(printf_buf + strlen(printf_buf),
- "|i_map|i_dir|e_type|pf_id|vf_id|q_id|drop\n",
- HCLGE_DBG_BUF_LEN - strlen(printf_buf) - 1);
-
- dev_info(&hdev->pdev->dev, "%s", printf_buf);
+ pos += scnprintf(buf + pos, len - pos,
+ "entry mac_addr mask ether ");
+ pos += scnprintf(buf + pos, len - pos,
+ "mask vlan mask i_map i_dir e_type ");
+ pos += scnprintf(buf + pos, len - pos, "pf_id vf_id q_id drop\n");
for (i = 0; i < HCLGE_DBG_MNG_TBL_MAX; i++) {
hclge_cmd_setup_basic_desc(&desc, HCLGE_MAC_ETHERTYPE_IDX_RD,
@@ -1240,43 +1235,40 @@ static void hclge_dbg_dump_mng_table(struct hclge_dev *hdev)
ret = hclge_cmd_send(&hdev->hw, &desc, 1);
if (ret) {
dev_err(&hdev->pdev->dev,
- "call hclge_cmd_send fail, ret = %d\n", ret);
- return;
+ "failed to dump manage table, ret = %d\n", ret);
+ return ret;
}
if (!req0->resp_code)
continue;
- memset(printf_buf, 0, HCLGE_DBG_BUF_LEN);
- snprintf(printf_buf, HCLGE_DBG_BUF_LEN,
- "%02u |%02x:%02x:%02x:%02x:%02x:%02x|",
- le16_to_cpu(req0->index),
- req0->mac_addr[0], req0->mac_addr[1],
- req0->mac_addr[2], req0->mac_addr[3],
- req0->mac_addr[4], req0->mac_addr[5]);
-
- snprintf(printf_buf + strlen(printf_buf),
- HCLGE_DBG_BUF_LEN - strlen(printf_buf),
- "%x |%04x |%x |%04x|%x |%02x |%02x |",
- !!(req0->flags & HCLGE_DBG_MNG_MAC_MASK_B),
- le16_to_cpu(req0->ethter_type),
- !!(req0->flags & HCLGE_DBG_MNG_ETHER_MASK_B),
- le16_to_cpu(req0->vlan_tag) & HCLGE_DBG_MNG_VLAN_TAG,
- !!(req0->flags & HCLGE_DBG_MNG_VLAN_MASK_B),
- req0->i_port_bitmap, req0->i_port_direction);
+ pos += scnprintf(buf + pos, len - pos, "%02u %pM ",
+ le16_to_cpu(req0->index), req0->mac_addr);
+
+ pos += scnprintf(buf + pos, len - pos,
+ "%x %04x %x %04x ",
+ !!(req0->flags & HCLGE_DBG_MNG_MAC_MASK_B),
+ le16_to_cpu(req0->ethter_type),
+ !!(req0->flags & HCLGE_DBG_MNG_ETHER_MASK_B),
+ le16_to_cpu(req0->vlan_tag) &
+ HCLGE_DBG_MNG_VLAN_TAG);
+
+ pos += scnprintf(buf + pos, len - pos,
+ "%x %02x %02x ",
+ !!(req0->flags & HCLGE_DBG_MNG_VLAN_MASK_B),
+ req0->i_port_bitmap, req0->i_port_direction);
msg_egress_port = le16_to_cpu(req0->egress_port);
- snprintf(printf_buf + strlen(printf_buf),
- HCLGE_DBG_BUF_LEN - strlen(printf_buf),
- "%x |%x |%02x |%04x|%x\n",
- !!(msg_egress_port & HCLGE_DBG_MNG_E_TYPE_B),
- msg_egress_port & HCLGE_DBG_MNG_PF_ID,
- (msg_egress_port >> 3) & HCLGE_DBG_MNG_VF_ID,
- le16_to_cpu(req0->egress_queue),
- !!(msg_egress_port & HCLGE_DBG_MNG_DROP_B));
-
- dev_info(&hdev->pdev->dev, "%s", printf_buf);
+ pos += scnprintf(buf + pos, len - pos,
+ "%x %x %02x %04x %x\n",
+ !!(msg_egress_port & HCLGE_DBG_MNG_E_TYPE_B),
+ msg_egress_port & HCLGE_DBG_MNG_PF_ID,
+ (msg_egress_port >> 3) & HCLGE_DBG_MNG_VF_ID,
+ le16_to_cpu(req0->egress_queue),
+ !!(msg_egress_port & HCLGE_DBG_MNG_DROP_B));
}
+
+ return 0;
}
static int hclge_dbg_fd_tcam_read(struct hclge_dev *hdev, u8 stage,
@@ -1813,8 +1805,6 @@ int hclge_dbg_run_cmd(struct hnae3_handle *handle, const char *cmd_buf)
hclge_dbg_dump_qos_pri_map(hdev);
} else if (strncmp(cmd_buf, "dump qos buf cfg", 16) == 0) {
hclge_dbg_dump_qos_buf_cfg(hdev);
- } else if (strncmp(cmd_buf, "dump mng tbl", 12) == 0) {
- hclge_dbg_dump_mng_table(hdev);
} else if (strncmp(cmd_buf, DUMP_REG, strlen(DUMP_REG)) == 0) {
hclge_dbg_dump_reg_cmd(hdev, &cmd_buf[sizeof(DUMP_REG)]);
} else if (strncmp(cmd_buf, "dump reset info", 15) == 0) {
@@ -1866,6 +1856,10 @@ static const struct hclge_dbg_func hclge_dbg_cmd_func[] = {
.cmd = HNAE3_DBG_CMD_MAC_MC,
.dbg_dump = hclge_dbg_dump_mac_mc,
},
+ {
+ .cmd = HNAE3_DBG_CMD_MNG_TBL,
+ .dbg_dump = hclge_dbg_dump_mng_table,
+ },
};
int hclge_dbg_read_cmd(struct hnae3_handle *handle, enum hnae3_dbg_cmd cmd,
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h
index c5c18af..bf6a0ff 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h
@@ -7,7 +7,6 @@
#include <linux/etherdevice.h>
#include "hclge_cmd.h"
-#define HCLGE_DBG_BUF_LEN 256
#define HCLGE_DBG_MNG_TBL_MAX 64
#define HCLGE_DBG_MNG_VLAN_MASK_B BIT(0)
--
2.7.4
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