From 95bc1457f66a4297676e725a4dbb50cd36d38ba4 Mon Sep 17 00:00:00 2001 From: Ben Greear Date: Wed, 4 Aug 2021 06:43:29 -0700 Subject: [PATCH] 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: Ben Greear Signed-off-by: Felix Fietkau --- drivers/net/wireless/mediatek/mt76/mt7915/main.c | 129 +++++++++++++++++++++++ 1 file changed, 129 insertions(+) diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/main.c b/drivers/net/wireless/mediatek/mt76/mt7915/main.c index 3caefaf..d643df8 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/main.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/main.c @@ -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, -- 2.7.4