oncn-bwm/0003-add-proc-file-interface.patch

From ffe630818e3d5118ac0163e75e2f1ec774d3e4c9 Mon Sep 17 00:00:00 2001
From: JofDiamonds <kwb0523@163.com>
Date: Mon, 8 May 2023 10:04:42 +0800
Subject: [PATCH] add proc file interface

---
 bwmcli.h    |   6 +-
 ko/Makefile |  16 ++
 ko/bwm.c    | 567 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 ko/bwm.h    |  69 +++++++
 4 files changed, 657 insertions(+), 1 deletion(-)
 create mode 100644 ko/Makefile
 create mode 100644 ko/bwm.c
 create mode 100644 ko/bwm.h

diff --git a/bwmcli.h b/bwmcli.h
index f7d4c62..a319130 100644
--- a/bwmcli.h
+++ b/bwmcli.h
@@ -60,6 +60,10 @@ struct TcCmd {
 
 #define BWM_LOG_DEBUG(fmt, args...)     syslog(LOG_DEBUG, "[BWM_DEBUG]: " fmt, ## args)
 #define BWM_LOG_ERR(fmt, args...)       syslog(LOG_ERR, "[BWM]: " fmt, ## args)
-#define BWM_LOG_INFO(fmt, args...)      ((void)printf(fmt, ## args))
+#define BWM_LOG_INFO(fmt, args...)                              \
+        do {                                                    \
+                (void)printf(fmt, ## args);                     \
+                syslog(LOG_INFO, "[BWM]: " fmt, ## args);       \
+        } while (0)
 
 #endif /* __BWMCLI_H__ */
diff --git a/ko/Makefile b/ko/Makefile
new file mode 100644
index 0000000..7eae5f5
--- /dev/null
+++ b/ko/Makefile
@@ -0,0 +1,16 @@
+CONFIG_MODULE_SIG=n
+
+obj-m := bwm.o
+
+KERNELDIR ?= /lib/modules/$(shell uname -r)/build
+PWD := $(shell pwd)
+
+LINUX_VER ?= $(shell ls /usr/src/ | grep linux)
+USERSRC ?= /usr/src/$(LINUX_VER)
+EXTRA_CFLAGS = -I$(USERSRC)
+
+all:
+	$(MAKE) -C $(KERNELDIR) M=$(PWD)
+clean:
+	@rm -rf *.o *.mod *.mod.c *.mod.o *.ko *.order *.symvers .*.cmd
+
diff --git a/ko/bwm.c b/ko/bwm.c
new file mode 100644
index 0000000..6be6cbe
--- /dev/null
+++ b/ko/bwm.c
@@ -0,0 +1,567 @@
+/*
+ * Copyright (c) Huawei Technologies Co., Ltd. 2020-2022. All rights reserved.
+ * Description: Network bandwidth management tool
+ */
+#include "bwm.h"
+
+static char *envp[] = { "HOME=/", "PATH=/sbin:/usr/sbin:/bin:/usr/bin", NULL };
+
+static ssize_t proc_value_get(const char __user *buffer, unsigned long count, char *value)
+{
+	if (count == 0 || count >= MAX_BUF_SIZE) {
+		return -EINVAL;
+	}
+
+	if (copy_from_user(value, buffer, count)) {
+		return -EINVAL;
+	}
+
+	value[count - 1] = '\0';
+
+	return 0;
+}
+
+static int proc_net_qos_enable_open(struct seq_file *seq, void *offset)
+{
+	seq_printf(seq, "%s\n", net_qos_enable);
+	return 0;
+}
+
+static int proc_net_qos_enable_single_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, proc_net_qos_enable_open, NULL);
+}
+
+static int qos_cmd_upcall(char *cmd)
+{
+	int ret = 0;
+	char *argv[] = {
+		"/bin/bash",
+		"-c",
+		cmd,
+		NULL,
+	};
+
+	ret = call_usermodehelper(argv[0], argv, envp, UMH_WAIT_PROC);
+	if (ret) {
+		BWM_LOG_ERR("call_usermodehelper failed, ret = %d", ret);
+	}
+
+	return ret;
+}
+
+static ssize_t proc_net_qos_enable_write(struct file *file, const char __user *buffer,
+										 unsigned long count, loff_t *ppos)
+{
+	int ret = 0;
+	char nspid[MAX_BUF_SIZE] = { 0 };
+	char cmd[MAX_CMD_LEN] = { 0 };
+
+	ret = proc_value_get(buffer, count, nspid);
+	if (ret != 0) {
+		BWM_LOG_ERR("proc_value_get failed");
+		return count;
+	}
+	BWM_LOG_DEBUG("get nspid %s", nspid);
+
+	ret = snprintf(cmd, MAX_CMD_LEN, "%s -n -t %s %s -e", NSENTER_PATH, nspid, BWMCLI_PATH);
+	if (ret < 0) {
+		BWM_LOG_ERR("failed to snprintf enable qos cmd");
+		return ret;
+	}
+	BWM_LOG_DEBUG("enable qos cmd:%s", cmd);
+
+	ret = qos_cmd_upcall(cmd);
+	if (ret != 0) {
+		BWM_LOG_ERR("qos_enable_upcall failed");
+	}
+
+	return count;
+}
+
+static int proc_net_qos_disable_open(struct seq_file *seq, void *offset)
+{
+	seq_printf(seq, "%s\n", net_qos_disable);
+	return 0;
+}
+
+static int proc_net_qos_disable_single_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, proc_net_qos_disable_open, NULL);
+}
+
+static ssize_t proc_net_qos_disable_write(struct file *file, const char __user *buffer,
+										  unsigned long count, loff_t *ppos)
+{
+	int ret = 0;
+	char nspid[MAX_BUF_SIZE] = { 0 };
+	char cmd[MAX_CMD_LEN] = { 0 };
+
+	ret = proc_value_get(buffer, count, nspid);
+	if (ret != 0) {
+		BWM_LOG_ERR("proc_value_get failed");
+		return count;
+	}
+	BWM_LOG_DEBUG("get nspid %s.", nspid);
+
+	ret = snprintf(cmd, MAX_CMD_LEN, "%s -n -t %s %s -d", NSENTER_PATH, nspid, BWMCLI_PATH);
+	if (ret < 0) {
+		BWM_LOG_ERR("failed to snprintf disable qos cmd");
+		return ret;
+	}
+	BWM_LOG_DEBUG("disable qos cmd:%s", cmd);
+
+	ret = qos_cmd_upcall(cmd);
+	if (ret != 0) {
+		BWM_LOG_ERR("disable qos failed");
+	}
+
+	return count;
+}
+
+static int proc_net_qos_bandwidth_open(struct seq_file *seq, void *offset)
+{
+	seq_printf(seq, "%s\n", net_qos_bandwidth);
+	return 0;
+}
+
+static int proc_net_qos_bandwidth_single_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, proc_net_qos_bandwidth_open, NULL);
+}
+
+static ssize_t proc_net_qos_bandwidth_write(struct file *file, const char __user *buffer,
+											unsigned long count, loff_t *ppos)
+{
+	int ret = 0;
+	char bandwidth[MAX_BUF_SIZE] = { 0 };
+	char cmd[MAX_CMD_LEN] = { 0 };
+
+	ret = proc_value_get(buffer, count, bandwidth);
+	if (ret != 0) {
+		BWM_LOG_ERR("proc_value_get failed");
+		return count;
+	}
+	BWM_LOG_DEBUG("change net_qos_bandwidth to %s.", bandwidth);
+
+	ret = snprintf(cmd, MAX_CMD_LEN, "%s -s bandwidth %s", BWMCLI_PATH, bandwidth);
+	if (ret < 0) {
+		BWM_LOG_ERR("failed to snprintf bandwidth cmd");
+		return ret;
+	}
+	BWM_LOG_DEBUG("set bandwidth cmd : %s", cmd);
+
+	ret = qos_cmd_upcall(cmd);
+	if (ret != 0) {
+		BWM_LOG_ERR("set bandwidth failed");
+		return ret;
+	}
+
+	ret = snprintf(net_qos_bandwidth, MAX_BUF_SIZE, "%s", bandwidth);
+	if (ret < 0) {
+		BWM_LOG_ERR("failed to write net_qos_bandwidth");
+		return ret;
+	}
+
+	return count;
+}
+
+static int proc_net_qos_waterline_open(struct seq_file *seq, void *offset)
+{
+	seq_printf(seq, "%s\n", net_qos_waterline);
+	return 0;
+}
+
+static int proc_net_qos_waterline_single_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, proc_net_qos_waterline_open, NULL);
+}
+
+static ssize_t proc_net_qos_waterline_write(struct file *file, const char __user *buffer,
+											unsigned long count, loff_t *ppos)
+{
+	int ret = 0;
+	char waterline[MAX_BUF_SIZE] = { 0 };
+	char cmd[MAX_CMD_LEN] = { 0 };
+
+	ret = proc_value_get(buffer, count, waterline);
+	if (ret != 0) {
+		BWM_LOG_ERR("proc_value_get failed");
+		return count;
+	}
+	BWM_LOG_DEBUG("change net_qos_waterline to %s.", waterline);
+
+	ret = snprintf(cmd, MAX_CMD_LEN, "%s -s waterline %s", BWMCLI_PATH, waterline);
+	if (ret < 0) {
+		BWM_LOG_ERR("failed to snprintf waterline cmd");
+		return ret;
+	}
+	BWM_LOG_DEBUG("set waterline cmd : %s", cmd);
+
+	ret = qos_cmd_upcall(cmd);
+	if (ret != 0) {
+		BWM_LOG_ERR("set waterline failed");
+		return ret;
+	}
+
+	ret = snprintf(net_qos_waterline, MAX_BUF_SIZE, "%s", waterline);
+	if (ret < 0) {
+		BWM_LOG_ERR("failed to write net_qos_waterline");
+		return ret;
+	}
+
+	return count;
+}
+
+static int proc_net_qos_devs_open(struct seq_file *seq, void *offset)
+{
+	seq_printf(seq, "%s\n", net_qos_devs);
+	return 0;
+}
+
+static int proc_net_qos_devs_single_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, proc_net_qos_devs_open, NULL);
+}
+
+static ssize_t proc_net_qos_devs_write(struct file *file, const char __user *buffer,
+									   unsigned long count, loff_t *ppos)
+{
+	int ret = 0;
+	char nspid[MAX_BUF_SIZE] = { 0 };
+	char cmd[MAX_CMD_LEN] = { 0 };
+
+	ret = proc_value_get(buffer, count, nspid);
+	if (ret != 0) {
+		BWM_LOG_ERR("proc_value_get failed");
+		return count;
+	}
+	BWM_LOG_DEBUG("write nspid:%s to net_qos_devs", nspid);
+
+	ret = snprintf(cmd, MAX_CMD_LEN, "%s -n -t %s %s -p devs > /proc/qos/net_qos_devstatus",
+				   NSENTER_PATH, nspid, BWMCLI_PATH);
+	if (ret < 0) {
+		BWM_LOG_ERR("failed to snprintf devs status cmd");
+		return ret;
+	}
+	BWM_LOG_DEBUG("get devs status cmd:%s", cmd);
+
+	ret = qos_cmd_upcall(cmd);
+	if (ret != 0) {
+		BWM_LOG_ERR("write net_qos_devs failed");
+	}
+
+	return count;
+}
+
+static int proc_net_qos_devstatus_open(struct seq_file *seq, void *offset)
+{
+	seq_printf(seq, "%s\n", net_qos_devstatus);
+	return 0;
+}
+
+static int proc_net_qos_devstatus_single_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, proc_net_qos_devstatus_open, NULL);
+}
+
+static ssize_t proc_net_qos_devstatus_write(struct file *file, const char __user *buffer,
+											unsigned long count, loff_t *ppos)
+{
+	int ret = 0;
+	char data[MAX_BUF_SIZE] = { 0 };
+
+	ret = proc_value_get(buffer, count, data);
+	if (ret != 0) {
+		BWM_LOG_ERR("proc_value_get failed");
+		return count;
+	}
+
+	ret = snprintf(net_qos_devstatus, MAX_DATA_SIZE, "%s", data);
+	if (ret < 0) {
+		BWM_LOG_ERR("write net_qos_devstatus failed");
+	}
+
+	return count;
+}
+
+static atomic_t stats_flag = ATOMIC_INIT(0);
+
+static int proc_net_qos_stats_open(struct seq_file *seq, void *offset)
+{
+	seq_printf(seq, "%s\n", net_qos_stats);
+	return 0;
+}
+
+static int proc_net_qos_stats_single_open(struct inode *inode, struct file *file)
+{
+	int ret = 0;
+	char cmd[MAX_CMD_LEN] = { 0 };
+
+	if (atomic_read(&stats_flag) == 0) {
+		ret = snprintf(cmd, MAX_CMD_LEN, "%s -p stats > /proc/qos/net_qos_stats", BWMCLI_PATH);
+		if (ret < 0) {
+			BWM_LOG_ERR("failed to snprintf stats cmd");
+			return ret;
+		}
+		BWM_LOG_DEBUG("stats cmd:%s", cmd);
+
+		atomic_xchg(&stats_flag, 1);
+		ret = qos_cmd_upcall(cmd);
+		if (ret != 0) {
+			BWM_LOG_ERR("read net_qos_stats failed");
+			atomic_xchg(&stats_flag, 0);
+			return ret;
+		}
+		single_open(file, proc_net_qos_stats_open, NULL);
+		return 0;
+	}
+	atomic_xchg(&stats_flag, 0);
+	return single_open(file, proc_net_qos_stats_open, NULL);
+}
+
+static ssize_t proc_net_qos_stats_write(struct file *file, const char __user *buffer,
+										unsigned long count, loff_t *ppos)
+{
+	int ret = 0;
+	char stats[MAX_BUF_SIZE] = { 0 };
+
+	ret = proc_value_get(buffer, count, stats);
+	if (ret != 0) {
+		BWM_LOG_ERR("proc_value_get failed");
+		return count;
+	}
+
+	ret = snprintf(net_qos_stats, MAX_DATA_SIZE, "%s", stats);
+	if (ret < 0) {
+		BWM_LOG_ERR("write net_qos_stats failed");
+	}
+
+	return count;
+}
+
+static int proc_net_qos_version_open(struct seq_file *seq, void *offset)
+{
+	seq_printf(seq, "version:%s\n", net_qos_version);
+	return 0;
+}
+
+static int proc_net_qos_version_single_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, proc_net_qos_version_open, NULL);
+}
+
+static int proc_net_qos_debug_open(struct seq_file *seq, void *offset)
+{
+	seq_printf(seq, "%u\n", net_qos_debug);
+	return 0;
+}
+
+static int proc_net_qos_debug_single_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, proc_net_qos_debug_open, NULL);
+}
+
+static ssize_t proc_net_qos_debug_write(struct file *file, const char __user *buffer,
+										unsigned long count, loff_t *ppos)
+{
+	int ret = 0;
+	char debug_mode[MAX_BUF_SIZE] = { 0 };
+	unsigned int net_qos_debug_new = net_qos_debug;
+
+	ret = proc_value_get(buffer, count, debug_mode);
+	if (ret != 0) {
+		BWM_LOG_ERR("proc_value_get failed");
+		return count;
+	}
+
+	net_qos_debug_new = simple_strtoul(debug_mode, NULL, 0);
+	if (net_qos_debug_new != 0 && net_qos_debug_new != 1) {
+		BWM_LOG_ERR("invalid input of debug mode(%d), valid input: 0 or 1.", net_qos_debug_new);
+		return count;
+	}
+
+	BWM_LOG_INFO("change debug mode, old is %u, new is %u.", net_qos_debug, net_qos_debug_new);
+	net_qos_debug = net_qos_debug_new;
+
+	return count;
+}
+
+static struct proc_ops bwm_proc_net_qos_enable_ops = {
+    .proc_open = proc_net_qos_enable_single_open,
+    .proc_write = proc_net_qos_enable_write,
+    .proc_read = seq_read,
+    .proc_release = single_release,
+};
+
+static struct proc_ops bwm_proc_net_qos_disable_ops = {
+    .proc_open = proc_net_qos_disable_single_open,
+    .proc_write = proc_net_qos_disable_write,
+    .proc_read = seq_read,
+    .proc_release = single_release,
+};
+
+static struct proc_ops bwm_proc_net_qos_bandwidth_ops = {
+	.proc_open = proc_net_qos_bandwidth_single_open,
+	.proc_write = proc_net_qos_bandwidth_write,
+	.proc_read = seq_read,
+	.proc_release = single_release,
+};
+
+static struct proc_ops bwm_proc_net_qos_waterline_ops = {
+	.proc_open = proc_net_qos_waterline_single_open,
+	.proc_write = proc_net_qos_waterline_write,
+	.proc_read = seq_read,
+	.proc_release = single_release,
+};
+
+static struct proc_ops bwm_proc_net_qos_devs_ops = {
+	.proc_open = proc_net_qos_devs_single_open,
+	.proc_write = proc_net_qos_devs_write,
+	.proc_read = seq_read,
+	.proc_release = single_release,
+};
+
+static struct proc_ops bwm_proc_net_qos_devstatus_ops = {
+	.proc_open = proc_net_qos_devstatus_single_open,
+	.proc_write = proc_net_qos_devstatus_write,
+	.proc_read = seq_read,
+	.proc_release = single_release,
+};
+
+static struct proc_ops bwm_proc_net_qos_stats_ops = {
+	.proc_open = proc_net_qos_stats_single_open,
+	.proc_write = proc_net_qos_stats_write,
+	.proc_read = seq_read,
+	.proc_release = single_release,
+};
+
+static struct proc_ops bwm_proc_net_qos_version_ops = {
+	.proc_open = proc_net_qos_version_single_open,
+	.proc_read = seq_read,
+	.proc_release = single_release,
+};
+
+static struct proc_ops bwm_proc_net_qos_debug_ops = {
+	.proc_open = proc_net_qos_debug_single_open,
+	.proc_write = proc_net_qos_debug_write,
+	.proc_read = seq_read,
+	.proc_release = single_release,
+};
+
+static struct bwm_proc g_proc_table[] = {
+	{
+		.proc_name = "net_qos_enable",
+		.entry = NULL,
+		.ops = &bwm_proc_net_qos_enable_ops,
+	},
+	{
+		.proc_name = "net_qos_disable",
+		.entry = NULL,
+		.ops = &bwm_proc_net_qos_disable_ops,
+	},
+	{
+		.proc_name = "net_qos_bandwidth",
+		.entry = NULL,
+		.ops = &bwm_proc_net_qos_bandwidth_ops,
+	},
+	{
+		.proc_name = "net_qos_waterline",
+		.entry = NULL,
+		.ops = &bwm_proc_net_qos_waterline_ops,
+	},
+	{
+		.proc_name = "net_qos_devs",
+		.entry = NULL,
+		.ops = &bwm_proc_net_qos_devs_ops,
+	},
+	{
+		.proc_name = "net_qos_devstatus",
+		.entry = NULL,
+		.ops = &bwm_proc_net_qos_devstatus_ops,
+	},
+	{
+		.proc_name = "net_qos_stats",
+		.entry = NULL,
+		.ops = &bwm_proc_net_qos_stats_ops,
+	},
+	{
+		.proc_name = "net_qos_version",
+		.entry = NULL,
+		.ops = &bwm_proc_net_qos_version_ops,
+	},
+	{
+		.proc_name = "net_qos_debug",
+		.entry = NULL,
+		.ops = &bwm_proc_net_qos_debug_ops,
+	},
+};
+
+static int bwm_proc_init(void)
+{
+	unsigned int i;
+	int ret = 0;
+
+	bwm_proc_root_dir = proc_mkdir(BWM_PROC_ROOTDIR, NULL);
+	if (!bwm_proc_root_dir) {
+		BWM_LOG_ERR("can't create /proc/%s.", BWM_PROC_ROOTDIR);
+		return -EFAULT;
+	}
+
+	for (i = 0; i < sizeof(g_proc_table) / sizeof(struct bwm_proc); i++) {
+		g_proc_table[i].entry = proc_create_seq_data(g_proc_table[i].proc_name, BWM_CTL_PROC_PERM,
+													 bwm_proc_root_dir, NULL, NULL);
+		if (!g_proc_table[i].entry) {
+			BWM_LOG_ERR("can't create file(%s).", g_proc_table[i].proc_name);
+			ret = -EFAULT;
+			break;
+		}
+		g_proc_table[i].entry->proc_ops = g_proc_table[i].ops;
+	}
+
+	if (ret != 0) {
+		BWM_LOG_ERR("bwm_proc_init failed");
+	}
+
+	return ret;
+}
+
+static void bwm_proc_clean(void)
+{
+	unsigned int i;
+
+	if (bwm_proc_root_dir) {
+		for (i = 0; i < sizeof(g_proc_table) / sizeof(struct bwm_proc); i++) {
+			if (g_proc_table[i].entry) {
+				remove_proc_entry(g_proc_table[i].proc_name, bwm_proc_root_dir);
+				g_proc_table[i].entry = NULL;
+			}
+		}
+		remove_proc_entry(BWM_PROC_ROOTDIR, NULL);
+		bwm_proc_root_dir = NULL;
+	}
+}
+
+static int __init bwm_init(void)
+{
+	int ret = 0;
+
+	ret = bwm_proc_init();
+	if (ret != 0) {
+		bwm_proc_clean();
+		return ret;
+	}
+
+	BWM_LOG_INFO("bwm loaded");
+	return ret;
+}
+
+static void __exit bwm_exit(void)
+{
+	bwm_proc_clean();
+	BWM_LOG_INFO("bwm unloaded");
+}
+
+module_init(bwm_init);
+module_exit(bwm_exit);
+MODULE_LICENSE("GPL");
diff --git a/ko/bwm.h b/ko/bwm.h
new file mode 100644
index 0000000..a977c0e
--- /dev/null
+++ b/ko/bwm.h
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) Huawei Technologies Co., Ltd. 2020-2022. All rights reserved.
+ * Description: Network bandwidth management tool
+ */
+#ifndef NET_BWM_H
+#define NET_BWM_H
+
+#include <asm/atomic.h>
+#include <linux/delay.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+#include <linux/types.h>
+#include <fs/proc/internal.h>
+
+#define BWM_PROC_ROOTDIR		"qos"
+#define BWM_CTL_PROC_PERM		0644
+
+#define NSENTER_PATH			"/usr/bin/nsenter"
+#define BWMCLI_PATH			"/usr/bin/bwmcli"
+
+#define MAX_BUF_SIZE			128
+#define MAX_CMD_LEN			(256 + NAME_MAX)
+#define MAX_DATA_SIZE			1024
+
+static char net_qos_disable[] = "please write <nspid> to net_qos_disable to disable qos";
+static char net_qos_enable[] = "please write <nspid> to net_qos_enable to enable qos";
+static char net_qos_bandwidth[MAX_BUF_SIZE];
+static char net_qos_waterline[MAX_BUF_SIZE];
+static char net_qos_devs[] = "please write <nspid> to net_qos_devs and read dev status from net_qos_devstatus";
+static char net_qos_devstatus[MAX_DATA_SIZE];
+static char net_qos_stats[MAX_DATA_SIZE];
+static char net_qos_version[] = "1.1";
+static unsigned int net_qos_debug = 0;
+
+static struct proc_dir_entry *bwm_proc_root_dir = NULL;
+
+struct bwm_proc {
+	const char *proc_name;
+	struct proc_dir_entry *entry;
+	struct proc_ops *ops;
+};
+
+#define PFX "BWM"
+
+#define BWM_LOG_INFO(fmt, ...)																			\
+	do {																								\
+		printk(KERN_INFO "[" PFX "] INFO:" fmt "[%s():%u]\n", ##__VA_ARGS__, __FUNCTION__, __LINE__); 	\
+	} while (0)
+
+#define BWM_LOG_NOTICE(fmt, ...)																		\
+	do {																								\
+		printk(KERN_NOTICE "[" PFX "] NOTICE:" fmt, ##__VA_ARGS__);										\
+	} while (0)
+
+#define BWM_LOG_ERR(fmt, ...)																			\
+	do {																								\
+		printk(KERN_ERR "[" PFX "] ERROR:" fmt "[%s():%u]\n", ##__VA_ARGS__, __FUNCTION__, __LINE__); 	\
+	} while (0)
+
+#define BWM_LOG_DEBUG(fmt, ...)																				\
+	do {																									\
+		if (net_qos_debug == 1) {																			\
+			printk(KERN_DEBUG "[" PFX "] DEBUG:" fmt "[%s():%u]\n", ##__VA_ARGS__, __FUNCTION__, __LINE__); \
+		}																									\
+	} while (0)
+
+#endif
-- 
2.33.0