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ath10k: add debugfs support to get per peer tids log via tracing 

This patch provides support to get per peer tids log.

echo 1 > /sys/kernel/debug/ieee80211/phyX/netdev\:wlanX/stations/
XX:XX/peer_debug_trigger

These logs will be the part of FWLOGS which we collect the logs
via tracing interface. Here we will get the peer tigd logs only
once(not repeatedly) when we write 1 to the debugfs file.

Signed-off-by: Maharaja Kennadyrajan <c_mkenna@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Maharaja Kennadyrajan 2017-02-02 08:32:19 +02:00 committed by Kalle Valo
parent 39bfe9f7c0
commit ee8b08a1be
2 changed files with 66 additions and 0 deletions
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65
drivers/net/wireless/ath/ath10k/debugfs_sta.c
View File

@ -306,6 +306,69 @@ static const struct file_operations fops_delba = {
.llseek = default_llseek,
};
static ssize_t ath10k_dbg_sta_read_peer_debug_trigger(struct file *file,
char __user *user_buf,
size_t count,
loff_t *ppos)
{
struct ieee80211_sta *sta = file->private_data;
struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
struct ath10k *ar = arsta->arvif->ar;
char buf[8];
int len = 0;
mutex_lock(&ar->conf_mutex);
len = scnprintf(buf, sizeof(buf) - len,
"Write 1 to once trigger the debug logs\n");
mutex_unlock(&ar->conf_mutex);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static ssize_t
ath10k_dbg_sta_write_peer_debug_trigger(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ieee80211_sta *sta = file->private_data;
struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
struct ath10k *ar = arsta->arvif->ar;
u8 peer_debug_trigger;
int ret;
if (kstrtou8_from_user(user_buf, count, 0, &peer_debug_trigger))
return -EINVAL;
if (peer_debug_trigger != 1)
return -EINVAL;
mutex_lock(&ar->conf_mutex);
if (ar->state != ATH10K_STATE_ON) {
ret = -ENETDOWN;
goto out;
}
ret = ath10k_wmi_peer_set_param(ar, arsta->arvif->vdev_id, sta->addr,
WMI_PEER_DEBUG, peer_debug_trigger);
if (ret) {
ath10k_warn(ar, "failed to set param to trigger peer tid logs for station ret: %d\n",
ret);
goto out;
}
out:
mutex_unlock(&ar->conf_mutex);
return count;
}
static const struct file_operations fops_peer_debug_trigger = {
.open = simple_open,
.read = ath10k_dbg_sta_read_peer_debug_trigger,
.write = ath10k_dbg_sta_write_peer_debug_trigger,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
void ath10k_sta_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct ieee80211_sta *sta, struct dentry *dir)
{
@ -314,4 +377,6 @@ void ath10k_sta_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
debugfs_create_file("addba", S_IWUSR, dir, sta, &fops_addba);
debugfs_create_file("addba_resp", S_IWUSR, dir, sta, &fops_addba_resp);
debugfs_create_file("delba", S_IWUSR, dir, sta, &fops_delba);
debugfs_create_file("peer_debug_trigger", 0600, dir, sta,
&fops_peer_debug_trigger);
}

1
drivers/net/wireless/ath/ath10k/wmi.h
View File

@ -5811,6 +5811,7 @@ enum wmi_peer_param {
WMI_PEER_CHAN_WIDTH = 0x4,
WMI_PEER_NSS = 0x5,
WMI_PEER_USE_4ADDR = 0x6,
WMI_PEER_DEBUG = 0xa,
WMI_PEER_DUMMY_VAR = 0xff, /* dummy parameter for STA PS workaround */
};