[PATCH 10/15] mt76: mt7915: add ethtool tx/rx pkts/bytes

[greearb@candelatech.com]

From: Ben Greear <greearb@candelatech.com>

These stats are provided with same name by ath10k
and some intel wired NIC drivers.  Add them to mt7915
as well to allow user-space code to more easily get some
basic stats out of the radio.

Signed-off-by: Ben Greear <greearb@candelatech.com>
---
 drivers/net/wireless/mediatek/mt76/mt7915/mac.c    |  7 +++++++
 drivers/net/wireless/mediatek/mt76/mt7915/main.c   | 11 +++++++++++
 drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h |  7 +++++++
 3 files changed, 25 insertions(+)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
index 7ca06b8c9671..9883d1e55f5b 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
@@ -782,6 +782,9 @@ mt7915_mac_fill_rx(struct mt7915_dev *dev, struct sk_buff *skb)
 			mt7915_mac_decode_he_mu_radiotap(skb, status, rxv);
 	}
 
+	mib->rx_pkts_nic++;
+	mib->rx_bytes_nic += skb->len;
+
 	if (!status->wcid || !ieee80211_is_data_qos(fc))
 		return 0;
 
@@ -1341,6 +1344,8 @@ mt7915_txwi_free(struct mt7915_dev *dev, struct mt76_txwi_cache *t,
 	u16 wcid_idx;
 	struct ieee80211_tx_info *info;
 	struct ieee80211_tx_rate *rate;
+	struct mt7915_phy *phy = &dev->phy;
+	struct mib_stats *mib = &phy->mib;
 
 	mt7915_txp_skb_unmap(mdev, t);
 	if (!t->skb)
@@ -1422,6 +1427,8 @@ mt7915_txwi_free(struct mt7915_dev *dev, struct mt76_txwi_cache *t,
 	/* Apply the values that this txfree path reports */
 	rate->count = tx_cnt;
 	if (tx_status == 0) {
+		mib->tx_pkts_nic++;
+		mib->tx_bytes_nic += t->skb->len;
 		info->flags |= IEEE80211_TX_STAT_ACK;
 		info->status.ampdu_ack_len = 1;
 	} else {
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/main.c b/drivers/net/wireless/mediatek/mt76/mt7915/main.c
index 22ceb46be4bf..4f609a5d38a4 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/main.c
@@ -1030,6 +1030,10 @@ static void mt7915_sta_set_decap_offload(struct ieee80211_hw *hw,
 }
 
 static const char mt7915_gstrings_stats[][ETH_GSTRING_LEN] = {
+	"tx_pkts_nic", /* from driver, phy tx-ok skb */
+	"tx_bytes_nic", /* from driver, phy tx-ok bytes */
+	"rx_pkts_nic", /* from driver, phy rx OK skb */
+	"rx_bytes_nic", /* from driver, phy rx OK bytes */
 	"tx_ampdu_cnt",
 	"tx_stop_q_empty_cnt",
 	"tx_mpdu_attempts",
@@ -1265,6 +1269,13 @@ void mt7915_get_et_stats(struct ieee80211_hw *hw,
 	if (!phy)
 		return;
 
+	/* driver phy-wide stats */
+	data[ei++] = mib->tx_pkts_nic;
+	data[ei++] = mib->tx_bytes_nic;
+	data[ei++] = mib->rx_pkts_nic;
+	data[ei++] = mib->rx_bytes_nic;
+
+	/* MIB stats from FW/HW */
 	data[ei++] = mib->tx_ampdu_cnt;
 	data[ei++] = mib->tx_stop_q_empty_cnt;
 	data[ei++] = mib->tx_mpdu_attempts_cnt;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h b/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h
index 2d7c84946e40..1a0d7d62c582 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h
@@ -125,6 +125,13 @@ struct mt7915_vif {
 
 /* per-phy stats.  */
 struct mib_stats {
+	/* phy wide driver stats */
+	u32 tx_pkts_nic; /* tx OK skb */
+	u32 tx_bytes_nic; /* tx OK bytes */
+	u32 rx_pkts_nic; /* rx OK skb */
+	u32 rx_bytes_nic; /* rx OK bytes */
+
+	/* MIB counters from FW/HW */
 	u32 ack_fail_cnt;
 	u32 fcs_err_cnt;
 	u32 rts_cnt;
-- 
2.20.1