mt76: mt7921: add some more MIB counters

This is a preliminary patch to introduce ethtool stats support to mt7921
driver.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt7921/mac.c

@@ -1326,6 +1326,7 @@ void mt7921_mac_update_mib_stats(struct mt7921_phy *phy)
 	struct mt7921_dev *dev = phy->dev;
 	struct mib_stats *mib = &phy->mib;
 	int i, aggr0 = 0, aggr1;
+	u32 val;
 
 	mib->fcs_err_cnt += mt76_get_field(dev, MT_MIB_SDR3(0),
 					   MT_MIB_SDR3_FCS_ERR_MASK);
@@ -1338,8 +1339,31 @@ void mt7921_mac_update_mib_stats(struct mt7921_phy *phy)
 	mib->rts_retries_cnt += mt76_get_field(dev, MT_MIB_MB_BSDR1(0),
 					       MT_MIB_RTS_FAIL_COUNT_MASK);
 
+	mib->tx_ampdu_cnt += mt76_rr(dev, MT_MIB_SDR12(0));
+	mib->tx_mpdu_attempts_cnt += mt76_rr(dev, MT_MIB_SDR14(0));
+	mib->tx_mpdu_success_cnt += mt76_rr(dev, MT_MIB_SDR15(0));
+
+	val = mt76_rr(dev, MT_MIB_SDR32(0));
+	mib->tx_pkt_ebf_cnt += FIELD_GET(MT_MIB_SDR9_EBF_CNT_MASK, val);
+	mib->tx_pkt_ibf_cnt += FIELD_GET(MT_MIB_SDR9_IBF_CNT_MASK, val);
+
+	val = mt76_rr(dev, MT_ETBF_TX_APP_CNT(0));
+	mib->tx_bf_ibf_ppdu_cnt += FIELD_GET(MT_ETBF_TX_IBF_CNT, val);
+	mib->tx_bf_ebf_ppdu_cnt += FIELD_GET(MT_ETBF_TX_EBF_CNT, val);
+
+	val = mt76_rr(dev, MT_ETBF_RX_FB_CNT(0));
+	mib->tx_bf_rx_fb_all_cnt += FIELD_GET(MT_ETBF_RX_FB_ALL, val);
+	mib->tx_bf_rx_fb_he_cnt += FIELD_GET(MT_ETBF_RX_FB_HE, val);
+	mib->tx_bf_rx_fb_vht_cnt += FIELD_GET(MT_ETBF_RX_FB_VHT, val);
+	mib->tx_bf_rx_fb_ht_cnt += FIELD_GET(MT_ETBF_RX_FB_HT, val);
+
+	mib->rx_mpdu_cnt += mt76_rr(dev, MT_MIB_SDR5(0));
+	mib->rx_ampdu_cnt += mt76_rr(dev, MT_MIB_SDR22(0));
+	mib->rx_ampdu_bytes_cnt += mt76_rr(dev, MT_MIB_SDR23(0));
+	mib->rx_ba_cnt += mt76_rr(dev, MT_MIB_SDR31(0));
+
 	for (i = 0, aggr1 = aggr0 + 4; i < 4; i++) {
-		u32 val, val2;
+		u32 val2;
 
 		val = mt76_rr(dev, MT_TX_AGG_CNT(0, i));
 		val2 = mt76_rr(dev, MT_TX_AGG_CNT2(0, i));

drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h

@@ -129,6 +129,24 @@ struct mib_stats {
 	u32 rts_cnt;
 	u32 rts_retries_cnt;
 	u32 ba_miss_cnt;
+
+	u32 tx_bf_ibf_ppdu_cnt;
+	u32 tx_bf_ebf_ppdu_cnt;
+	u32 tx_bf_rx_fb_all_cnt;
+	u32 tx_bf_rx_fb_he_cnt;
+	u32 tx_bf_rx_fb_vht_cnt;
+	u32 tx_bf_rx_fb_ht_cnt;
+
+	u32 tx_ampdu_cnt;
+	u32 tx_mpdu_attempts_cnt;
+	u32 tx_mpdu_success_cnt;
+	u32 tx_pkt_ebf_cnt;
+	u32 tx_pkt_ibf_cnt;
+
+	u32 rx_mpdu_cnt;
+	u32 rx_ampdu_cnt;
+	u32 rx_ampdu_bytes_cnt;
+	u32 rx_ba_cnt;
 };
 
 struct mt7921_phy {

drivers/net/wireless/mediatek/mt76/mt7921/regs.h

@@ -92,6 +92,20 @@
 #define MT_LPON_TCR_SW_MODE		GENMASK(1, 0)
 #define MT_LPON_TCR_SW_WRITE		BIT(0)
 
+/* ETBF: band 0(0x24000), band 1(0xa4000) */
+#define MT_WF_ETBF_BASE(_band)		((_band) ? 0x820fa000 : 0x820ea000)
+#define MT_WF_ETBF(_band, ofs)		(MT_WF_ETBF_BASE(_band) + (ofs))
+
+#define MT_ETBF_TX_APP_CNT(_band)	MT_WF_ETBF(_band, 0x150)
+#define MT_ETBF_TX_IBF_CNT		GENMASK(31, 16)
+#define MT_ETBF_TX_EBF_CNT		GENMASK(15, 0)
+
+#define MT_ETBF_RX_FB_CNT(_band)	MT_WF_ETBF(_band, 0x158)
+#define MT_ETBF_RX_FB_ALL		GENMASK(31, 24)
+#define MT_ETBF_RX_FB_HE		GENMASK(23, 16)
+#define MT_ETBF_RX_FB_VHT		GENMASK(15, 8)
+#define MT_ETBF_RX_FB_HT		GENMASK(7, 0)
+
 /* MIB: band 0(0x24800), band 1(0xa4800) */
 #define MT_WF_MIB_BASE(_band)		((_band) ? 0x820fd000 : 0x820ed000)
 #define MT_WF_MIB(_band, ofs)		(MT_WF_MIB_BASE(_band) + (ofs))
@@ -103,12 +117,26 @@
 #define MT_MIB_SDR3(_band)		MT_WF_MIB(_band, 0x698)
 #define MT_MIB_SDR3_FCS_ERR_MASK	GENMASK(31, 16)
 
+#define MT_MIB_SDR5(_band)		MT_WF_MIB(_band, 0x780)
+
 #define MT_MIB_SDR9(_band)		MT_WF_MIB(_band, 0x02c)
 #define MT_MIB_SDR9_BUSY_MASK		GENMASK(23, 0)
 
+#define MT_MIB_SDR12(_band)		MT_WF_MIB(_band, 0x558)
+#define MT_MIB_SDR14(_band)		MT_WF_MIB(_band, 0x564)
+#define MT_MIB_SDR15(_band)		MT_WF_MIB(_band, 0x568)
+
 #define MT_MIB_SDR16(_band)		MT_WF_MIB(_band, 0x048)
 #define MT_MIB_SDR16_BUSY_MASK		GENMASK(23, 0)
 
+#define MT_MIB_SDR22(_band)		MT_WF_MIB(_band, 0x770)
+#define MT_MIB_SDR23(_band)		MT_WF_MIB(_band, 0x774)
+#define MT_MIB_SDR31(_band)		MT_WF_MIB(_band, 0x55c)
+
+#define MT_MIB_SDR32(_band)		MT_WF_MIB(_band, 0x7a8)
+#define MT_MIB_SDR9_IBF_CNT_MASK	GENMASK(31, 16)
+#define MT_MIB_SDR9_EBF_CNT_MASK	GENMASK(15, 0)
+
 #define MT_MIB_SDR34(_band)		MT_WF_MIB(_band, 0x090)
 #define MT_MIB_MU_BF_TX_CNT		GENMASK(15, 0)