ath10k: add log level configuration for fw_dbglog
Introduce an optional log level configuration for the existing debugfs fw_dbglog file. It
allows users to configure the desired log level for firmware dbglog messages.
To configure log level as WARN:
echo 0xffffffff 2 > /sys/kernel/debug/ieee80211/phy0/ath10k/fw_dbglog
The values are:
VERBOSE 0
INFO 1
WARN 2
ERR 3
Signed-off-by: SenthilKumar Jegadeesan <sjegadee@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
diff --git a/drivers/net/wireless/ath/ath10k/debug.c b/drivers/net/wireless/ath/ath10k/debug.c
index 42b2e49..d2281e5 100644
--- a/drivers/net/wireless/ath/ath10k/debug.c
+++ b/drivers/net/wireless/ath/ath10k/debug.c
@@ -1318,10 +1318,10 @@
{
struct ath10k *ar = file->private_data;
unsigned int len;
- char buf[32];
+ char buf[64];
- len = scnprintf(buf, sizeof(buf), "0x%08x\n",
- ar->debug.fw_dbglog_mask);
+ len = scnprintf(buf, sizeof(buf), "0x%08x %u\n",
+ ar->debug.fw_dbglog_mask, ar->debug.fw_dbglog_level);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
@@ -1331,19 +1331,32 @@
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
- unsigned long mask;
int ret;
+ char buf[64];
+ unsigned int log_level, mask;
- ret = kstrtoul_from_user(user_buf, count, 0, &mask);
- if (ret)
- return ret;
+ simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);
+
+ /* make sure that buf is null terminated */
+ buf[sizeof(buf) - 1] = 0;
+
+ ret = sscanf(buf, "%x %u", &mask, &log_level);
+
+ if (!ret)
+ return -EINVAL;
+
+ if (ret == 1)
+ /* default if user did not specify */
+ log_level = ATH10K_DBGLOG_LEVEL_WARN;
mutex_lock(&ar->conf_mutex);
ar->debug.fw_dbglog_mask = mask;
+ ar->debug.fw_dbglog_level = log_level;
if (ar->state == ATH10K_STATE_ON) {
- ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask);
+ ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask,
+ ar->debug.fw_dbglog_level);
if (ret) {
ath10k_warn(ar, "dbglog cfg failed from debugfs: %d\n",
ret);
@@ -1685,7 +1698,8 @@
ret);
if (ar->debug.fw_dbglog_mask) {
- ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask);
+ ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask,
+ ATH10K_DBGLOG_LEVEL_WARN);
if (ret)
/* not serious */
ath10k_warn(ar, "failed to enable dbglog during start: %d",