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wlan-ap-Telecominfraproject/feeds/ipq95xx/mac80211/patches/qca/326-ath11k-Add-support-to-bit-error-rate.patch
John Crispin 144c5d00f4 ipq95xx/mac80211: update to ATH12.3-CS 
Signed-off-by: John Crispin <john@phrozen.org>
2024-02-28 18:56:21 +01:00

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From 826adf094d3c7245944d0949f85cc9f23715d8dc Mon Sep 17 00:00:00 2001
From: Hari Chandrakanthan <haric@codeaurora.org>
Date: Mon, 13 Sep 2021 21:17:16 +0530
Subject: [PATCH] ath11k : Add support to bit error rate
cmd to read bit error rate :
cat /sys/kernel/debug/ieee80211/phyX/netdev\:wlanX/stations/xx\
:xx\:xx\:xx\:xx\:cc/htt_comm_stats
cmd to reset bit error rate :
echo 1 > /sys/kernel/debug/ieee80211/phyX/netdev\:wlanX/stations/xx\
:xx\:xx\:xx\:xx\:cc/htt_comm_stats
sample log:
root@OpenWrt:/# cat /sys/kernel/debug/ieee80211/phy0/netdev\:wlan0/stations/8c\:
fd\:f0\:22\:0f\:5e/htt_comm_stats
tx_pwr[0] : 22
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
fail_pkts : 41
succ_pkts : 120
PER : 4
fail_bytes : 60314
succ_bytes : 177104
BER : 12
Signed-off-by: Hari Chandrakanthan <haric@codeaurora.org>
---
drivers/net/wireless/ath/ath11k/core.h | 8 ++++++++
drivers/net/wireless/ath/ath11k/debugfs_sta.c | 13 ++++++++++++-
drivers/net/wireless/ath/ath11k/dp_rx.c | 5 +++++
drivers/net/wireless/ath/ath11k/dp_tx.c | 5 +++++
drivers/net/wireless/ath/ath11k/dp_tx.h | 13 +++++++++++++
drivers/net/wireless/ath/ath11k/mac.c | 2 ++
6 files changed, 45 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/ath/ath11k/core.h b/drivers/net/wireless/ath/ath11k/core.h
index 89bee8e..2775fa2 100644
--- a/drivers/net/wireless/ath/ath11k/core.h
+++ b/drivers/net/wireless/ath/ath11k/core.h
@@ -412,6 +412,8 @@ struct ath11k_wbm_tx_stats {
u64 wbm_tx_comp_stats[HAL_WBM_REL_HTT_TX_COMP_STATUS_MAX];
};
+DECLARE_EWMA(sta_ber, 8, 16)
+
struct ath11k_htt_tx_stats {
struct ath11k_htt_data_stats stats[ATH11K_STATS_TYPE_MAX];
u64 tx_duration;
@@ -500,6 +502,12 @@ struct ath11k_sta {
/* pkt count for packet error rate computation*/
u32 per_fail_pkts;
u32 per_succ_pkts;
+ struct ewma_sta_ber ber;
+ u64 succ_bytes;
+ u64 fail_bytes;
+ /*bytes count for bit error rate computation*/
+ u32 ber_succ_bytes;
+ u32 ber_fail_bytes;
#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 5db8c6f..6247df2 100644
--- a/drivers/net/wireless/ath/ath11k/debugfs_sta.c
+++ b/drivers/net/wireless/ath/ath11k/debugfs_sta.c
@@ -1581,7 +1581,12 @@ static ssize_t ath11k_dbg_sta_read_htt_comm_stats(struct file *file,
arsta->succ_pkts);
len += scnprintf(buf + len, sizeof(buf) - len, "PER : %lu\n",
ewma_sta_per_read(&arsta->per));
-
+ len += scnprintf(buf + len, sizeof(buf) - len, "fail_bytes : %llu\n",
+ arsta->fail_bytes);
+ len += scnprintf(buf + len, sizeof(buf) - len, "succ_bytes : %llu\n",
+ arsta->succ_bytes);
+ len += scnprintf(buf + len, sizeof(buf) - len,
+ "BER : %lu\n", ewma_sta_ber_read(&arsta->ber));
spin_unlock_bh(&ar->ab->base_lock);
mutex_unlock(&ar->conf_mutex);
@@ -1611,6 +1616,12 @@ static ssize_t ath11k_dbg_sta_write_htt_comm_stats(struct file *file,
arsta->per_succ_pkts = 0;
ewma_sta_per_init(&arsta->per);
ewma_sta_per_add(&arsta->per, 1);
+ ewma_sta_ber_init(&arsta->ber);
+ ewma_sta_ber_add(&arsta->ber, 1);
+ arsta->succ_bytes = 0;
+ arsta->fail_bytes = 0;
+ arsta->ber_succ_bytes = 0;
+ arsta->ber_fail_bytes = 0;
spin_unlock_bh(&ab->base_lock);
mutex_unlock(&ar->conf_mutex);
diff --git a/drivers/net/wireless/ath/ath11k/dp_rx.c b/drivers/net/wireless/ath/ath11k/dp_rx.c
index ae859ef..f147f9e 100644
--- a/drivers/net/wireless/ath/ath11k/dp_rx.c
+++ b/drivers/net/wireless/ath/ath11k/dp_rx.c
@@ -1674,9 +1674,14 @@ ath11k_update_per_peer_tx_stats(struct ath11k *ar,
peer_stats->ru_tones = arsta->txrate.he_ru_alloc;
arsta->succ_pkts += succ_pkts;
arsta->per_succ_pkts += succ_pkts;
+ arsta->succ_bytes += succ_bytes;
+ arsta->ber_succ_bytes += succ_bytes;
if(arsta->per_fail_pkts + arsta->per_succ_pkts >=
ATH11K_NUM_PKTS_THRSHLD_FOR_PER)
ath11k_sta_stats_update_per(arsta);
+ if(arsta->ber_fail_bytes + arsta->ber_succ_bytes >=
+ ATH11K_NUM_BYTES_THRSHLD_FOR_BER)
+ ath11k_sta_stats_update_ber(arsta);
if (unlikely(ath11k_debugfs_is_extd_tx_stats_enabled(ar)))
ath11k_debugfs_sta_add_tx_stats(arsta, peer_stats, rate_idx);
diff --git a/drivers/net/wireless/ath/ath11k/dp_tx.c b/drivers/net/wireless/ath/ath11k/dp_tx.c
index 03f5b26..6f9bb49 100644
--- a/drivers/net/wireless/ath/ath11k/dp_tx.c
+++ b/drivers/net/wireless/ath/ath11k/dp_tx.c
@@ -650,9 +650,14 @@ static void ath11k_dp_tx_complete_msdu(struct ath11k *ar,
if (ts->status != HAL_WBM_TQM_REL_REASON_FRAME_ACKED) {
arsta->fail_pkts += 1;
arsta->per_fail_pkts += 1;
+ arsta->fail_bytes += msdu->len;
+ arsta->ber_fail_bytes += msdu->len;
if(arsta->per_fail_pkts + arsta->per_succ_pkts >=
ATH11K_NUM_PKTS_THRSHLD_FOR_PER)
ath11k_sta_stats_update_per(arsta);
+ if(arsta->ber_fail_bytes + arsta->ber_succ_bytes >=
+ ATH11K_NUM_BYTES_THRSHLD_FOR_BER)
+ ath11k_sta_stats_update_ber(arsta);
}
if (unlikely(ath11k_debugfs_is_extd_tx_stats_enabled(ar))) {
diff --git a/drivers/net/wireless/ath/ath11k/dp_tx.h b/drivers/net/wireless/ath/ath11k/dp_tx.h
index c41898a..28e7b35 100644
--- a/drivers/net/wireless/ath/ath11k/dp_tx.h
+++ b/drivers/net/wireless/ath/ath11k/dp_tx.h
@@ -11,6 +11,7 @@
#define ATH11K_NUM_PKTS_THRSHLD_FOR_PER 50
#define ATH11K_GET_PERCENTAGE(value, total_value) (((value)*100)/(total_value))
+#define ATH11K_NUM_BYTES_THRSHLD_FOR_BER 25000
struct ath11k_dp_htt_wbm_tx_status {
u32 msdu_id;
@@ -256,4 +257,16 @@ static inline void ath11k_sta_stats_update_per(struct ath11k_sta *arsta) {
arsta->per_succ_pkts = 0;
}
+static inline void ath11k_sta_stats_update_ber(struct ath11k_sta *arsta) {
+ int ber;
+
+ if(!arsta)
+ return;
+
+ ber = ATH11K_GET_PERCENTAGE(arsta->ber_fail_bytes,
+ arsta->ber_fail_bytes + arsta->ber_succ_bytes);
+ ewma_sta_ber_add(&arsta->ber, ber);
+ arsta->ber_fail_bytes = 0;
+ arsta->ber_succ_bytes = 0;
+}
#endif
diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c
index a5f05ae..535f249 100644
--- a/drivers/net/wireless/ath/ath11k/mac.c
+++ b/drivers/net/wireless/ath/ath11k/mac.c
@@ -5031,6 +5031,8 @@ static int ath11k_mac_station_add(struct ath11k *ar,
ewma_sta_per_init(&arsta->per);
ewma_sta_per_add(&arsta->per, 1);
+ ewma_sta_ber_init(&arsta->ber);
+ ewma_sta_ber_add(&arsta->ber, 1);
ewma_avg_rssi_init(&arsta->avg_rssi);
return 0;
--
2.7.4
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