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[PATCH 09/12] wifi: mt76: mt7915: ethtool group-5 rx stats information

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From: Ben Greear <greearb@xxxxxxxxxxxxxxx>

Add ethtool support for rx-nss, rx-bw, rx-mode stats.
These are only valid when the group-5 rx stats are
enabled.

Signed-off-by: Ben Greear <greearb@xxxxxxxxxxxxxxx>
---
 drivers/net/wireless/mediatek/mt76/mac80211.c | 23 ++++++++++++++-
 drivers/net/wireless/mediatek/mt76/mt76.h     | 10 +++++++
 .../net/wireless/mediatek/mt76/mt7915/mac.c   | 29 +++++++++++++++++--
 .../net/wireless/mediatek/mt76/mt7915/main.c  | 21 ++++++++++++++
 .../net/wireless/mediatek/mt76/mt7921/main.c  | 21 ++++++++++++++
 5 files changed, 101 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mac80211.c b/drivers/net/wireless/mediatek/mt76/mac80211.c
index 242e055fa475..574e2c54637a 100644
--- a/drivers/net/wireless/mediatek/mt76/mac80211.c
+++ b/drivers/net/wireless/mediatek/mt76/mac80211.c
@@ -1623,7 +1623,7 @@ EXPORT_SYMBOL_GPL(mt76_calculate_default_rate);
 void mt76_ethtool_worker(struct mt76_ethtool_worker_info *wi,
 			 struct mt76_sta_stats *stats)
 {
-	int i, ei = wi->initial_stat_idx;
+	int i, q, ei = wi->initial_stat_idx;
 	u64 *data = wi->data;
 
 	wi->sta_count++;
@@ -1648,6 +1648,27 @@ void mt76_ethtool_worker(struct mt76_ethtool_worker_info *wi,
 	for (i = 0; i < 12; i++)
 		data[ei++] += stats->tx_mcs[i];
 
+	/* rx stats */
+	for (q = 0; q < ARRAY_SIZE(stats->rx_nss); q++)
+		data[ei++] += stats->rx_nss[q];
+
+	data[ei++] += stats->rx_mode[MT_PHY_TYPE_CCK];
+	data[ei++] += stats->rx_mode[MT_PHY_TYPE_OFDM];
+	data[ei++] += stats->rx_mode[MT_PHY_TYPE_HT];
+	data[ei++] += stats->rx_mode[MT_PHY_TYPE_HT_GF];
+	data[ei++] += stats->rx_mode[MT_PHY_TYPE_VHT];
+	data[ei++] += stats->rx_mode[MT_PHY_TYPE_HE_SU];
+	data[ei++] += stats->rx_mode[MT_PHY_TYPE_HE_EXT_SU];
+	data[ei++] += stats->rx_mode[MT_PHY_TYPE_HE_TB];
+	data[ei++] += stats->rx_mode[MT_PHY_TYPE_HE_MU];
+
+	data[ei++] += stats->rx_bw_20;
+	data[ei++] += stats->rx_bw_40;
+	data[ei++] += stats->rx_bw_80;
+	data[ei++] += stats->rx_bw_160;
+	data[ei++] += stats->rx_bw_he_ru;
+	data[ei++] += stats->rx_ru_106;
+
 	wi->worker_stat_count = ei - wi->initial_stat_idx;
 }
 EXPORT_SYMBOL_GPL(mt76_ethtool_worker);
diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h
index 682b554fbcb7..cbf1a30d3cc9 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76.h
@@ -839,6 +839,16 @@ struct mt76_sta_stats {
 	u64 tx_bw[4];		/* 20, 40, 80, 160 */
 	u64 tx_nss[4];		/* 1, 2, 3, 4 */
 	u64 tx_mcs[16];		/* mcs idx */
+
+	/* This section requires group-5 in rxd to be enabled for 7915. */
+	u32 rx_nss[4]; /* rx-nss histogram */
+	u32 rx_mode[__MT_PHY_TYPE_HE_MAX]; /* rx mode histogram */
+	u32 rx_bw_20;
+	u32 rx_bw_40;
+	u32 rx_bw_80;
+	u32 rx_bw_160;
+	u32 rx_bw_he_ru;
+	u32 rx_ru_106;
 };
 
 struct mt76_ethtool_worker_info {
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
index 1d2909c0c04c..ca6748d67ce0 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
@@ -487,7 +487,8 @@ static int
 mt7915_mac_fill_rx_rate(struct mt7915_dev *dev,
 			struct mt76_rx_status *status,
 			struct ieee80211_supported_band *sband,
-			__le32 *rxv, u8 *mode, u8 *nss)
+			__le32 *rxv, u8 *mode, u8 *nss,
+			struct mt76_sta_stats *stats)
 {
 	u32 v0, v2;
 	u8 stbc, gi, bw, dcm;
@@ -555,6 +556,8 @@ mt7915_mac_fill_rx_rate(struct mt7915_dev *dev,
 
 	switch (bw) {
 	case IEEE80211_STA_RX_BW_20:
+		if (stats)
+			stats->rx_bw_20++;
 		break;
 	case IEEE80211_STA_RX_BW_40:
 		if (*mode & MT_PHY_TYPE_HE_EXT_SU &&
@@ -562,15 +565,26 @@ mt7915_mac_fill_rx_rate(struct mt7915_dev *dev,
 			status->bw = RATE_INFO_BW_HE_RU;
 			status->he_ru =
 				NL80211_RATE_INFO_HE_RU_ALLOC_106;
+			if (stats) {
+				stats->rx_bw_he_ru++;
+				stats->rx_ru_106++;
+			}
 		} else {
 			status->bw = RATE_INFO_BW_40;
+			if (stats)
+				stats->rx_bw_40++;
 		}
 		break;
 	case IEEE80211_STA_RX_BW_80:
 		status->bw = RATE_INFO_BW_80;
+		if (stats)
+			stats->rx_bw_80++;
+
 		break;
 	case IEEE80211_STA_RX_BW_160:
 		status->bw = RATE_INFO_BW_160;
+		if (stats)
+			stats->rx_bw_160++;
 		break;
 	default:
 		return -EINVAL;
@@ -591,6 +605,15 @@ mt7915_mac_fill_rx_rate(struct mt7915_dev *dev,
 
 	status->nss = *nss;
 
+	if (stats) {
+		if (*nss > 3)
+			stats->rx_nss[3]++;
+		else
+			stats->rx_nss[*nss - 1]++;
+		if (*mode < __MT_PHY_TYPE_HE_MAX)
+			stats->rx_mode[*mode]++;
+	}
+
 	return 0;
 }
 
@@ -618,6 +641,7 @@ mt7915_mac_fill_rx(struct mt7915_dev *dev, struct sk_buff *skb)
 	u16 seq_ctrl = 0;
 	__le16 fc = 0;
 	int idx;
+	struct mt76_sta_stats *stats = NULL;
 
 	memset(status, 0, sizeof(*status));
 
@@ -652,6 +676,7 @@ mt7915_mac_fill_rx(struct mt7915_dev *dev, struct sk_buff *skb)
 		struct mt7915_sta *msta;
 
 		msta = container_of(status->wcid, struct mt7915_sta, wcid);
+		stats = &msta->stats;
 		spin_lock_bh(&dev->sta_poll_lock);
 		if (list_empty(&msta->poll_list))
 			list_add_tail(&msta->poll_list, &dev->sta_poll_list);
@@ -797,7 +822,7 @@ mt7915_mac_fill_rx(struct mt7915_dev *dev, struct sk_buff *skb)
 
 		if (!is_mt7915(&dev->mt76) || (rxd1 & MT_RXD1_NORMAL_GROUP_5)) {
 			ret = mt7915_mac_fill_rx_rate(dev, status, sband, rxv,
-						      &mode, &nss);
+						      &mode, &nss, stats);
 			if (ret < 0)
 				return ret;
 		} else {
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/main.c b/drivers/net/wireless/mediatek/mt76/mt7915/main.c
index 1e8f525fa669..db3c32eebb04 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/main.c
@@ -1187,6 +1187,27 @@ static const char mt7915_gstrings_stats[][ETH_GSTRING_LEN] = {
 	"v_tx_mcs_9",
 	"v_tx_mcs_10",
 	"v_tx_mcs_11",
+
+	/* per-vif rx counters */
+	"v_rx_nss1",
+	"v_rx_nss2",
+	"v_rx_nss3",
+	"v_rx_nss4",
+	"v_rx_mode_cck",
+	"v_rx_mode_ofdm",
+	"v_rx_mode_ht",
+	"v_rx_mode_ht_gf",
+	"v_rx_mode_vht",
+	"v_rx_mode_he_su",
+	"v_rx_mode_he_ext_su",
+	"v_rx_mode_he_tb",
+	"v_rx_mode_he_mu",
+	"v_rx_bw_20",
+	"v_rx_bw_40",
+	"v_rx_bw_80",
+	"v_rx_bw_160",
+	"v_rx_bw_he_ru",
+	"v_rx_ru_106",
 };
 
 #define MT7915_SSTATS_LEN ARRAY_SIZE(mt7915_gstrings_stats)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/main.c b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
index ac78fcf285bf..a23dd8f44e28 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
@@ -1016,6 +1016,27 @@ static const char mt7921_gstrings_stats[][ETH_GSTRING_LEN] = {
 	"v_tx_mcs_9",
 	"v_tx_mcs_10",
 	"v_tx_mcs_11",
+
+	/* per-vif rx counters */
+	"v_rx_nss1",
+	"v_rx_nss2",
+	"v_rx_nss3",
+	"v_rx_nss4",
+	"v_rx_mode_cck",
+	"v_rx_mode_ofdm",
+	"v_rx_mode_ht",
+	"v_rx_mode_ht_gf",
+	"v_rx_mode_vht",
+	"v_rx_mode_he_su",
+	"v_rx_mode_he_ext_su",
+	"v_rx_mode_he_tb",
+	"v_rx_mode_he_mu",
+	"v_rx_bw_20",
+	"v_rx_bw_40",
+	"v_rx_bw_80",
+	"v_rx_bw_160",
+	"v_rx_bw_he_ru",
+	"v_rx_ru_106",
 };
 
 static void
-- 
2.20.1




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