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mt76: mt7915: add ethtool stats support

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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 <greearb@candelatech.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Ben Greear 2021-08-04 06:43:29 -07:00 committed by Felix Fietkau
parent 02d1c7d494
commit 95bc1457f6
1 changed files with 129 additions and 0 deletions
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129
drivers/net/wireless/mediatek/mt76/mt7915/main.c
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@ -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,