From: Ben Greear <greearb@xxxxxxxxxxxxxxx>
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@xxxxxxxxxxxxxxx>
---
.../wireless/mediatek/mt76/mt7915/debugfs.c | 135 ++++++++++++++++++
.../net/wireless/mediatek/mt76/mt7915/main.c | 3 +
.../wireless/mediatek/mt76/mt7915/mt7915.h | 12 ++
3 files changed, 150 insertions(+)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c b/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c
index 64048243e34b..d2e155f8be04 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c
@@ -429,4 +429,139 @@ void mt7915_sta_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
debugfs_create_file("fixed_rate", 0600, dir, sta, &fops_fixed_rate);
debugfs_create_file("stats", 0400, dir, sta, &mt7915_sta_stats_fops);
}
+
#endif
+
+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 */
+void mt7915_debug_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));
+}
+
+int mt7915_debug_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;
+}
+
+void mt7915_debug_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);
+
+ /* TODO: These are mostly dev-wide stats at this point.
+ * Get some per-vif stats?
+ */
+
+ /* See mt7915_ampdu_stat_read_phy, etc */
+ bool ext_phy = phy != &dev->phy;
+ int i, n, cnt;
+ int ei = 0;
+
+ if (!phy)
+ return;
+
+ /* 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 */
+
+ /* TODO: External phy too?? */
+
+ /* 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);
+}
+
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/main.c b/drivers/net/wireless/mediatek/mt76/mt7915/main.c
index d8abebcffe4b..47bfbedee4f1 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/main.c
@@ -1056,6 +1056,9 @@ 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_debug_get_et_sset_count,
+ .get_et_stats = mt7915_debug_get_et_stats,
+ .get_et_strings = mt7915_debug_get_et_strings,
.get_tsf = mt7915_get_tsf,
.set_tsf = mt7915_set_tsf,
.offset_tsf = mt7915_offset_tsf,
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h b/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h
index 3f613fae6218..04f01ba18da9 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h
@@ -441,4 +441,16 @@ void mt7915_sta_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct ieee80211_sta *sta, struct dentry *dir);
#endif
+/* Ethtool API, implementation found in debugfs.c */
+void mt7915_debug_get_et_strings(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ u32 sset, u8 *data);
+
+int mt7915_debug_get_et_sset_count(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif, int sset);
+
+void mt7915_debug_get_et_stats(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ethtool_stats *stats, u64 *data);
+
#endif
--
2.20.1
