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wlan-ap-Telecominfraproject/feeds/ipq95xx/mac80211/patches/qca/324-ath11k-add-debugfs-support-for-tx-power.patch
John Crispin b9b03a6e38 ipq95xx: add Qualcomm wifi-7 support 
Signed-off-by: John Crispin <john@phrozen.org>
2023-04-10 14:25:48 +02:00

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From 8f254b74881e0138c5e32214a0a0e8e17e715e3c Mon Sep 17 00:00:00 2001
From: Hari Chandrakanthan <haric@codeaurora.org>
Date: Wed, 8 Sep 2021 19:15:28 +0530
Subject: [PATCH] ath11k : Add debugfs support for tx power
Support to parse and store peer specific tx power from htt stats is added.
The tx power is updated for each ppdu.
cmd to read the tx power :
root@OpenWrt:/# cat /sys/kernel/debug/ieee80211/phyX/netdev\:wlanX/stations/xx\:
xx\:xx\:xx\:xx\:xx/htt_comm_stats
sample log :
root@OpenWrt:/# cat /sys/kernel/debug/ieee80211/phyX/netdev\:wlanX/stations/xx\:
xx\:xx\:xx\:xx\:xx/htt_comm_stats
tx_pwr[0] : 24
tx_pwr[1] : 0
tx_pwr[2] : 0
tx_pwr[3] : 0
tx_pwr[4] : 0
tx_pwr[5] : 0
tx_pwr[6] : 0
tx_pwr[7] : 0
Signed-off-by: Hari Chandrakanthan <haric@codeaurora.org>
---
drivers/net/wireless/ath/ath11k/core.h | 3 ++
drivers/net/wireless/ath/ath11k/debugfs_sta.c | 40 +++++++++++++++++++++++++++
drivers/net/wireless/ath/ath11k/dp.h | 16 +++++++++++
drivers/net/wireless/ath/ath11k/dp_rx.c | 15 ++++++++++
4 files changed, 74 insertions(+)
diff --git a/drivers/net/wireless/ath/ath11k/core.h b/drivers/net/wireless/ath/ath11k/core.h
index 3c3d894..34074d5 100644
--- a/drivers/net/wireless/ath/ath11k/core.h
+++ b/drivers/net/wireless/ath/ath11k/core.h
@@ -489,6 +489,9 @@ struct ath11k_sta {
u32 ps_total_duration;
struct ath11k_wbm_tx_stats *wbm_tx_stats;
u8 num_spatial_strm_mask;
+ u8 tx_pwr_multiplier;
+ u8 chain_enable_bits;
+ u32 tx_pwr[HTT_PPDU_STATS_USER_CMN_TX_PWR_ARR_SIZE];
#ifdef CPTCFG_ATH11K_CFR
struct ath11k_per_peer_cfr_capture cfr_capture;
#endif
diff --git a/drivers/net/wireless/ath/ath11k/debugfs_sta.c b/drivers/net/wireless/ath/ath11k/debugfs_sta.c
index d715ab9..3db4d60 100644
--- a/drivers/net/wireless/ath/ath11k/debugfs_sta.c
+++ b/drivers/net/wireless/ath/ath11k/debugfs_sta.c
@@ -1549,6 +1549,45 @@ static const struct file_operations fops_peer_cfr_capture = {
};
#endif /* CPTCFG_ATH11K_CFR */
+#define GET_PER_CHAIN_TX_PWR_FRM_U32(arr, chain_idx) \
+ ((arr[chain_idx/4] >> (chain_idx % 4) * 8) & 0xFF)
+
+static ssize_t ath11k_dbg_sta_read_htt_comm_stats(struct file *file,
+ char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct ieee80211_sta *sta = file->private_data;
+ struct ath11k_sta *arsta = (struct ath11k_sta *)sta->drv_priv;
+ struct ath11k *ar = arsta->arvif->ar;
+ char buf[512] = {0};
+ int len = 0;
+ int i;
+ s8 tx_pwr;
+
+ mutex_lock(&ar->conf_mutex);
+ spin_lock_bh(&ar->ab->base_lock);
+ for(i = 0; i < (HTT_PPDU_STATS_USER_CMN_TX_PWR_ARR_SIZE * 4); i++) {
+ if(arsta->tx_pwr_multiplier && (arsta->chain_enable_bits & (1 << i))) {
+ tx_pwr = GET_PER_CHAIN_TX_PWR_FRM_U32(arsta->tx_pwr, i);
+ tx_pwr = tx_pwr/arsta->tx_pwr_multiplier;
+ } else
+ tx_pwr = 0;
+ len += scnprintf(buf + len, sizeof(buf) - len,
+ "tx_pwr[%d] : %d\n", i, tx_pwr);
+ }
+ spin_unlock_bh(&ar->ab->base_lock);
+ mutex_unlock(&ar->conf_mutex);
+
+ return simple_read_from_buffer(user_buf, count, ppos, buf, len);
+}
+
+static const struct file_operations fops_htt_comm_stats = {
+ .read = ath11k_dbg_sta_read_htt_comm_stats,
+ .open = simple_open,
+ .owner = THIS_MODULE,
+ .llseek = default_llseek,
+};
+
void ath11k_debugfs_sta_op_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct ieee80211_sta *sta, struct dentry *dir)
{
@@ -1607,4 +1646,5 @@ void ath11k_debugfs_sta_op_add(struct ieee80211_hw *hw, struct ieee80211_vif *vi
ar->ab->wmi_ab.svc_map))
debugfs_create_file("config_nss", 0600, dir, sta,
&fops_config_num_spatial_strm);
+ debugfs_create_file("htt_comm_stats", 0400, dir, sta, &fops_htt_comm_stats);
}
diff --git a/drivers/net/wireless/ath/ath11k/dp.h b/drivers/net/wireless/ath/ath11k/dp.h
index 49fee63..c096af5 100644
--- a/drivers/net/wireless/ath/ath11k/dp.h
+++ b/drivers/net/wireless/ath/ath11k/dp.h
@@ -1559,6 +1559,10 @@ struct htt_ppdu_stats_usr_cmpltn_ack_ba_status {
#define HTT_PPDU_STATS_USR_CMN_FLAG_DELAYBA BIT(14)
#define HTT_PPDU_STATS_USR_CMN_HDR_SW_PEERID GENMASK(31, 16)
#define HTT_PPDU_STATS_USR_CMN_CTL_FRM_CTRL GENMASK(15, 0)
+#define HTT_STATS_MAX_CHAINS 8
+#define HTT_PPDU_STATS_USER_CMN_TLV_TX_PWR_CHAINS_PER_U32 4
+#define HTT_PPDU_STATS_USER_CMN_TX_PWR_ARR_SIZE HTT_STATS_MAX_CHAINS / \
+ HTT_PPDU_STATS_USER_CMN_TLV_TX_PWR_CHAINS_PER_U32
struct htt_ppdu_stats_user_common {
u8 tid_num;
@@ -1569,6 +1573,18 @@ struct htt_ppdu_stats_user_common {
u32 buffer_paddr_31_0;
u32 buffer_paddr_39_32;
u32 host_opaque_cookie;
+ u32 qdepth_bytes;
+ u32 full_aid;
+ u32 data_frm_ppdu_id;
+ u32 sw_rts_prot_dur_us;
+ u8 tx_pwr_multiplier;
+ u8 chain_enable_bits;
+ u16 reserved;
+ /*
+ *tx_pwr is applicable for each radio chain
+ *tx_pwr for each radio chain is a 8 bit value
+ */
+ u32 tx_pwr[HTT_PPDU_STATS_USER_CMN_TX_PWR_ARR_SIZE];
} __packed;
struct htt_ppdu_stats_usr_cmn_array {
diff --git a/drivers/net/wireless/ath/ath11k/dp_rx.c b/drivers/net/wireless/ath/ath11k/dp_rx.c
index 46c2c46..3c85b33 100644
--- a/drivers/net/wireless/ath/ath11k/dp_rx.c
+++ b/drivers/net/wireless/ath/ath11k/dp_rx.c
@@ -1311,9 +1311,12 @@ static int ath11k_htt_tlv_ppdu_stats_parse(struct ath11k_base *ab,
{
struct htt_ppdu_stats_info *ppdu_info;
struct htt_ppdu_user_stats *user_stats = NULL;
+ struct ath11k_sta *arsta;
+ struct ath11k_peer *peer;
int cur_user;
u16 peer_id;
u32 frame_type;
+ int i;
ppdu_info = (struct htt_ppdu_stats_info *)data;
@@ -1426,6 +1429,18 @@ static int ath11k_htt_tlv_ppdu_stats_parse(struct ath11k_base *ab,
user_stats->delay_ba = FIELD_GET(HTT_PPDU_STATS_USR_CMN_FLAG_DELAYBA,
user_stats->common.info);
ppdu_info->delay_ba = user_stats->delay_ba;
+ rcu_read_lock();
+ spin_lock_bh(&ab->base_lock);
+ peer = ath11k_peer_find_by_id(ab, peer_id);
+ if(peer && peer->sta) {
+ arsta = (struct ath11k_sta *)peer->sta->drv_priv;
+ arsta->tx_pwr_multiplier = user_stats->common.tx_pwr_multiplier;
+ arsta->chain_enable_bits = user_stats->common.chain_enable_bits;
+ for(i = 0; i < HTT_PPDU_STATS_USER_CMN_TX_PWR_ARR_SIZE; i++)
+ arsta->tx_pwr[i] = user_stats->common.tx_pwr[i];
+ }
+ spin_unlock_bh(&ab->base_lock);
+ rcu_read_unlock();
break;
default:
break;
--
2.7.4
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