Commit 95bc1457 authored by Ben Greear's avatar Ben Greear Committed by Felix Fietkau
Browse files

mt76: mt7915: add ethtool stats support 



This exposes some tx-path stats to the ethtool API, so that
ethtool -S wlanX provides some more useful info.

Signed-off-by: default avatarBen Greear <greearb@candelatech.com>
Signed-off-by: default avatarFelix Fietkau <nbd@nbd.name>
parent 02d1c7d4

drivers/net/wireless/mediatek/mt76/mt7915/main.c

+129 −0
Original line number Diff line number Diff line
@@ -1054,6 +1054,132 @@ static void mt7915_sta_set_decap_offload(struct ieee80211_hw *hw, 
	mt7915_mcu_sta_update_hdr_trans(dev, vif, sta);

}



static const char mt7915_gstrings_stats[][ETH_GSTRING_LEN] = {

	"tx_ampdu_len:0-1",

	"tx_ampdu_len:2-10",

	"tx_ampdu_len:11-19",

	"tx_ampdu_len:20-28",

	"tx_ampdu_len:29-37",

	"tx_ampdu_len:38-46",

	"tx_ampdu_len:47-55",

	"tx_ampdu_len:56-79",

	"tx_ampdu_len:80-103",

	"tx_ampdu_len:104-127",

	"tx_ampdu_len:128-151",

	"tx_ampdu_len:152-175",

	"tx_ampdu_len:176-199",

	"tx_ampdu_len:200-223",

	"tx_ampdu_len:224-247",

	"ba_miss_count",

	"tx_beamformer_ppdu_iBF",

	"tx_beamformer_ppdu_eBF",

	"tx_beamformer_rx_feedback_all",

	"tx_beamformer_rx_feedback_he",

	"tx_beamformer_rx_feedback_vht",

	"tx_beamformer_rx_feedback_ht",

	"tx_beamformer_rx_feedback_bw", /* zero based idx: 20, 40, 80, 160 */

	"tx_beamformer_rx_feedback_nc",

	"tx_beamformer_rx_feedback_nr",

	"tx_beamformee_ok_feedback_pkts",

	"tx_beamformee_feedback_trig",

	"tx_mu_beamforming",

	"tx_mu_mpdu",

	"tx_mu_successful_mpdu",

	"tx_su_successful_mpdu",

	"tx_msdu_pack_1",

	"tx_msdu_pack_2",

	"tx_msdu_pack_3",

	"tx_msdu_pack_4",

	"tx_msdu_pack_5",

	"tx_msdu_pack_6",

	"tx_msdu_pack_7",

	"tx_msdu_pack_8",

};



#define MT7915_SSTATS_LEN ARRAY_SIZE(mt7915_gstrings_stats)



/* Ethtool related API */

static

void mt7915_get_et_strings(struct ieee80211_hw *hw,

			   struct ieee80211_vif *vif,

			   u32 sset, u8 *data)

{

	if (sset == ETH_SS_STATS)

		memcpy(data, *mt7915_gstrings_stats,

		       sizeof(mt7915_gstrings_stats));

}



static

int mt7915_get_et_sset_count(struct ieee80211_hw *hw,

			     struct ieee80211_vif *vif, int sset)

{

	if (sset == ETH_SS_STATS)

		return MT7915_SSTATS_LEN;



	return 0;

}



static

void mt7915_get_et_stats(struct ieee80211_hw *hw,

			 struct ieee80211_vif *vif,

			 struct ethtool_stats *stats, u64 *data)

{

	struct mt7915_dev *dev = mt7915_hw_dev(hw);

	struct mt7915_phy *phy = mt7915_hw_phy(hw);



	/* See mt7915_ampdu_stat_read_phy, etc */

	bool ext_phy = phy != &dev->phy;

	int i, n, ei = 0;



	/* Tx ampdu stat */

	n = ext_phy ? ARRAY_SIZE(dev->mt76.aggr_stats) / 2 : 0;

	for (i = 0; i < 15 /*ARRAY_SIZE(bound)*/; i++)

		data[ei++] = dev->mt76.aggr_stats[i + n];



	data[ei++] = phy->mib.ba_miss_cnt;



	/* Tx Beamformer monitor */

	cnt = mt76_rr(dev, MT_ETBF_TX_APP_CNT(ext_phy));

	data[ei++] = FIELD_GET(MT_ETBF_TX_IBF_CNT, cnt);

	data[ei++] = FIELD_GET(MT_ETBF_TX_EBF_CNT, cnt);



	/* Tx Beamformer Rx feedback monitor */

	cnt = mt76_rr(dev, MT_ETBF_RX_FB_CNT(ext_phy));

	data[ei++] = FIELD_GET(MT_ETBF_RX_FB_ALL, cnt);

	data[ei++] = FIELD_GET(MT_ETBF_RX_FB_HE, cnt);

	data[ei++] = FIELD_GET(MT_ETBF_RX_FB_VHT, cnt);

	data[ei++] = FIELD_GET(MT_ETBF_RX_FB_HT, cnt);



	cnt = mt76_rr(dev, MT_ETBF_RX_FB_CONT(ext_phy));

	data[ei++] = FIELD_GET(MT_ETBF_RX_FB_BW, cnt);

	data[ei++] = FIELD_GET(MT_ETBF_RX_FB_NC, cnt);

	data[ei++] = FIELD_GET(MT_ETBF_RX_FB_NR, cnt);



	/* Tx Beamformee Rx NDPA & Tx feedback report */

	cnt = mt76_rr(dev, MT_ETBF_TX_NDP_BFRP(ext_phy));

	data[ei++] = FIELD_GET(MT_ETBF_TX_FB_CPL, cnt);

	data[ei++] = FIELD_GET(MT_ETBF_TX_FB_TRI, cnt);



	/* Tx SU & MU counters */

	cnt = mt76_rr(dev, MT_MIB_SDR34(ext_phy));

	data[ei++] = FIELD_GET(MT_MIB_MU_BF_TX_CNT, cnt);



	cnt = mt76_rr(dev, MT_MIB_DR8(ext_phy));

	data[ei++] = cnt;



	cnt = mt76_rr(dev, MT_MIB_DR9(ext_phy));

	data[ei++] = cnt; /* MU MPDU SUccessful */



	cnt = mt76_rr(dev, MT_MIB_DR11(ext_phy));

	data[ei++] = cnt; /* SU MPDU successful */



	/* Tx amsdu info (pack-count histogram) */

	for (i = 0; i < 8; i++)

		data[ei++] = mt76_rr(dev,  MT_PLE_AMSDU_PACK_MSDU_CNT(i));



	WARN_ON(ei != MT7915_SSTATS_LEN);

}



const struct ieee80211_ops mt7915_ops = {

	.tx = mt7915_tx,

	.start = mt7915_start,
@@ -1078,6 +1204,9 @@ const struct ieee80211_ops mt7915_ops = { 
	.get_txpower = mt76_get_txpower,

	.channel_switch_beacon = mt7915_channel_switch_beacon,

	.get_stats = mt7915_get_stats,

	.get_et_sset_count = mt7915_get_et_sset_count,

	.get_et_stats = mt7915_get_et_stats,

	.get_et_strings = mt7915_get_et_strings,

	.get_tsf = mt7915_get_tsf,

	.set_tsf = mt7915_set_tsf,

	.offset_tsf = mt7915_offset_tsf,