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ath10k: add debugfs support to get power save state change of STA

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This patch helps to get the power save state change of each peer
connected to the AP. With WMI_10_4_PEER_STA_PS_STATECHG_EVENTID
event, ps state of each peer is reported to user space via
debugfs.

Use the below command to get the ps state of each sta:
cat /sys/kernel/debug/ieee80211/phyX/netdev::wlanX/stations/
XX:XX:XX:XX:XX:XX/peer_ps_state

If STA is in power save state, we get the peer_ps_state value as 1.
if STA is not in power save state, we get the peer_ps_state value as 0.
If ps_state event is disabled, we get the peer_ps_state value as 2.

We can enable/disable the ps_state events using the debugfs flag
"ps_state_enable"

echo Y > /sys/kernel/debug/ieee80211/phyX/ath10k/ps_state_enable

Y = 1 to enable and Y = 0 to disable

Tested in QCA4019 with firmware ver 10.4-3.2.1.1-00011

Signed-off-by: Maharaja Kennadyrajan <mkenna@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Maharaja Kennadyrajan 2018-09-18 12:04:27 +05:30 committed by Kalle Valo
parent 4be3b05e7a
commit d70c0d463f
6 changed files with 161 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/net/wireless/ath/ath10k/core.h
View File

@ -505,6 +505,8 @@ struct ath10k_sta {
/* Protected with ar->data_lock */
struct ath10k_sta_tid_stats tid_stats[IEEE80211_NUM_TIDS + 1];
#endif
/* Protected with ar->data_lock */
u32 peer_ps_state;
};
#define ATH10K_VDEV_SETUP_TIMEOUT_HZ (5 * HZ)
@ -946,6 +948,8 @@ struct ath10k {
u32 low_5ghz_chan;
u32 high_5ghz_chan;
bool ani_enabled;
/* protected by conf_mutex */
u8 ps_state_enable;
bool p2p;

82
drivers/net/wireless/ath/ath10k/debug.c
View File

@ -2398,6 +2398,85 @@ static const struct file_operations fops_warm_hw_reset = {
.llseek = default_llseek,
};
static void ath10k_peer_ps_state_disable(void *data,
struct ieee80211_sta *sta)
{
struct ath10k *ar = data;
struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
spin_lock_bh(&ar->data_lock);
arsta->peer_ps_state = WMI_PEER_PS_STATE_DISABLED;
spin_unlock_bh(&ar->data_lock);
}
static ssize_t ath10k_write_ps_state_enable(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
int ret;
u32 param;
u8 ps_state_enable;
if (kstrtou8_from_user(user_buf, count, 0, &ps_state_enable))
return -EINVAL;
if (ps_state_enable > 1 || ps_state_enable < 0)
return -EINVAL;
mutex_lock(&ar->conf_mutex);
if (ar->ps_state_enable == ps_state_enable) {
ret = count;
goto exit;
}
param = ar->wmi.pdev_param->peer_sta_ps_statechg_enable;
ret = ath10k_wmi_pdev_set_param(ar, param, ps_state_enable);
if (ret) {
ath10k_warn(ar, "failed to enable ps_state_enable: %d\n",
ret);
goto exit;
}
ar->ps_state_enable = ps_state_enable;
if (!ar->ps_state_enable)
ieee80211_iterate_stations_atomic(ar->hw,
ath10k_peer_ps_state_disable,
ar);
ret = count;
exit:
mutex_unlock(&ar->conf_mutex);
return ret;
}
static ssize_t ath10k_read_ps_state_enable(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
int len = 0;
char buf[32];
mutex_lock(&ar->conf_mutex);
len = scnprintf(buf, sizeof(buf) - len, "%d\n",
ar->ps_state_enable);
mutex_unlock(&ar->conf_mutex);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static const struct file_operations fops_ps_state_enable = {
.read = ath10k_read_ps_state_enable,
.write = ath10k_write_ps_state_enable,
.open = simple_open,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
int ath10k_debug_create(struct ath10k *ar)
{
ar->debug.cal_data = vzalloc(ATH10K_DEBUG_CAL_DATA_LEN);
@ -2534,6 +2613,9 @@ int ath10k_debug_register(struct ath10k *ar)
debugfs_create_file("warm_hw_reset", 0600, ar->debug.debugfs_phy, ar,
&fops_warm_hw_reset);
debugfs_create_file("ps_state_enable", 0600, ar->debug.debugfs_phy, ar,
&fops_ps_state_enable);
return 0;
}

29
drivers/net/wireless/ath/ath10k/debugfs_sta.c
View File

@ -460,6 +460,33 @@ static const struct file_operations fops_peer_debug_trigger = {
.llseek = default_llseek,
};
static ssize_t ath10k_dbg_sta_read_peer_ps_state(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[20];
int len = 0;
spin_lock_bh(&ar->data_lock);
len = scnprintf(buf, sizeof(buf) - len, "%d\n",
arsta->peer_ps_state);
spin_unlock_bh(&ar->data_lock);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static const struct file_operations fops_peer_ps_state = {
.open = simple_open,
.read = ath10k_dbg_sta_read_peer_ps_state,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
static char *get_err_str(enum ath10k_pkt_rx_err i)
{
switch (i) {
@ -738,4 +765,6 @@ void ath10k_sta_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
ath10k_debug_is_extd_tx_stats_enabled(ar))
debugfs_create_file("tx_stats", 0400, dir, sta,
&fops_tx_stats);
debugfs_create_file("peer_ps_state", 0400, dir, sta,
&fops_peer_ps_state);
}

1
drivers/net/wireless/ath/ath10k/mac.c
View File

@ -6256,6 +6256,7 @@ static int ath10k_sta_state(struct ieee80211_hw *hw,
new_state == IEEE80211_STA_NONE) {
memset(arsta, 0, sizeof(*arsta));
arsta->arvif = arvif;
arsta->peer_ps_state = WMI_PEER_PS_STATE_DISABLED;
INIT_WORK(&arsta->update_wk, ath10k_sta_rc_update_wk);
for (i = 0; i < ARRAY_SIZE(sta->txq); i++)

39
drivers/net/wireless/ath/ath10k/wmi.c
View File

@ -1307,7 +1307,8 @@ static struct wmi_pdev_param_map wmi_10_2_4_pdev_param_map = {
.set_mcast2ucast_mode = WMI_PDEV_PARAM_UNSUPPORTED,
.set_mcast2ucast_buffer = WMI_PDEV_PARAM_UNSUPPORTED,
.remove_mcast2ucast_buffer = WMI_PDEV_PARAM_UNSUPPORTED,
.peer_sta_ps_statechg_enable = WMI_PDEV_PARAM_UNSUPPORTED,
.peer_sta_ps_statechg_enable =
WMI_10X_PDEV_PARAM_PEER_STA_PS_STATECHG_ENABLE,
.igmpmld_ac_override = WMI_PDEV_PARAM_UNSUPPORTED,
.block_interbss = WMI_PDEV_PARAM_UNSUPPORTED,
.set_disable_reset_cmdid = WMI_PDEV_PARAM_UNSUPPORTED,
@ -5048,6 +5049,36 @@ ath10k_wmi_handle_tdls_peer_event(struct ath10k *ar, struct sk_buff *skb)
}
}
static void
ath10k_wmi_event_peer_sta_ps_state_chg(struct ath10k *ar, struct sk_buff *skb)
{
struct wmi_peer_sta_ps_state_chg_event *ev;
struct ieee80211_sta *sta;
struct ath10k_sta *arsta;
u8 peer_addr[ETH_ALEN];
lockdep_assert_held(&ar->data_lock);
ev = (struct wmi_peer_sta_ps_state_chg_event *)skb->data;
ether_addr_copy(peer_addr, ev->peer_macaddr.addr);
rcu_read_lock();
sta = ieee80211_find_sta_by_ifaddr(ar->hw, peer_addr, NULL);
if (!sta) {
ath10k_warn(ar, "failed to find station entry %pM\n",
peer_addr);
goto exit;
}
arsta = (struct ath10k_sta *)sta->drv_priv;
arsta->peer_ps_state = __le32_to_cpu(ev->peer_ps_state);
exit:
rcu_read_unlock();
}
void ath10k_wmi_event_pdev_ftm_intg(struct ath10k *ar, struct sk_buff *skb)
{
ath10k_dbg(ar, ATH10K_DBG_WMI, "WMI_PDEV_FTM_INTG_EVENTID\n");
@ -5978,6 +6009,9 @@ static void ath10k_wmi_10_2_op_rx(struct ath10k *ar, struct sk_buff *skb)
ath10k_dbg(ar, ATH10K_DBG_WMI,
"received event id %d not implemented\n", id);
break;
case WMI_10_2_PEER_STA_PS_STATECHG_EVENTID:
ath10k_wmi_event_peer_sta_ps_state_chg(ar, skb);
break;
default:
ath10k_warn(ar, "Unknown eventid: %d\n", id);
break;
@ -6095,6 +6129,9 @@ static void ath10k_wmi_10_4_op_rx(struct ath10k *ar, struct sk_buff *skb)
case WMI_10_4_DFS_STATUS_CHECK_EVENTID:
ath10k_wmi_event_dfs_status_check(ar, skb);
break;
case WMI_10_4_PEER_STA_PS_STATECHG_EVENTID:
ath10k_wmi_event_peer_sta_ps_state_chg(ar, skb);
break;
default:
ath10k_warn(ar, "Unknown eventid: %d\n", id);
break;

7
drivers/net/wireless/ath/ath10k/wmi.h
View File

@ -4161,6 +4161,13 @@ enum wmi_tpc_pream_5ghz {
WMI_TPC_PREAM_5GHZ_HTCUP,
};
#define WMI_PEER_PS_STATE_DISABLED 2
struct wmi_peer_sta_ps_state_chg_event {
struct wmi_mac_addr peer_macaddr;
__le32 peer_ps_state;
} __packed;
struct wmi_pdev_chanlist_update_event {
/* number of channels */
__le32 num_chan;