mt76: mt7921: add MU EDCA cmd support

Add MU EDCA MCU command support to update MU AC parameter record field
from the access point.
Co-developed-by: Eric-SY Chang <Eric-SY.Chang@mediatek.com>
Signed-off-by: Eric-SY Chang <Eric-SY.Chang@mediatek.com>
Tested-by: Eric-SY Chang <Eric-SY.Chang@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h

@@ -572,6 +572,7 @@ enum {
 	MCU_CMD_SCHED_SCAN_ENABLE = MCU_CE_PREFIX | 0x61,
 	MCU_CMD_SCHED_SCAN_REQ = MCU_CE_PREFIX | 0x62,
 	MCU_CMD_GET_NIC_CAPAB = MCU_CE_PREFIX | 0x8a,
+	MCU_CMD_SET_MU_EDCA_PARMS = MCU_CE_PREFIX | 0xb0,
 	MCU_CMD_REG_WRITE = MCU_CE_PREFIX | 0xc0,
 	MCU_CMD_REG_READ = MCU_CE_PREFIX | MCU_QUERY_MASK | 0xc0,
 	MCU_CMD_CHIP_CONFIG = MCU_CE_PREFIX | 0xca,

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

@@ -974,7 +974,30 @@ int mt7921_mcu_set_tx(struct mt7921_dev *dev, struct ieee80211_vif *vif)
 		.total = IEEE80211_NUM_ACS,
 	};
 	struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
-	int ac;
+	struct mu_edca {
+		u8 cw_min;
+		u8 cw_max;
+		u8 aifsn;
+		u8 acm;
+		u8 timer;
+		u8 padding[3];
+	};
+	struct mt7921_mcu_mu_tx {
+		u8 ver;
+		u8 pad0;
+		__le16 len;
+		u8 bss_idx;
+		u8 qos;
+		u8 wmm_idx;
+		u8 pad1;
+		struct mu_edca edca[IEEE80211_NUM_ACS];
+		u8 pad3[32];
+	} __packed req_mu = {
+		.bss_idx = mvif->mt76.idx,
+		.qos = vif->bss_conf.qos,
+		.wmm_idx = mvif->mt76.wmm_idx,
+	};
+	int ac, ret;
 
 	for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
 		struct ieee80211_tx_queue_params *q = &mvif->queue_params[ac];
@@ -995,8 +1018,34 @@ int mt7921_mcu_set_tx(struct mt7921_dev *dev, struct ieee80211_vif *vif)
 		else
 			e->cw_max = cpu_to_le16(10);
 	}
-	return mt76_mcu_send_msg(&dev->mt76, MCU_EXT_CMD_EDCA_UPDATE, &req,
-				 sizeof(req), true);
+
+	ret = mt76_mcu_send_msg(&dev->mt76, MCU_EXT_CMD_EDCA_UPDATE, &req,
+				sizeof(req), true);
+	if (ret)
+		return ret;
+
+	if (!vif->bss_conf.he_support)
+		return 0;
+
+	for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
+		struct ieee80211_he_mu_edca_param_ac_rec *q;
+		struct mu_edca *e;
+		int to_aci[] = {1, 0, 2, 3};
+
+		if (!mvif->queue_params[ac].mu_edca)
+			break;
+
+		q = &mvif->queue_params[ac].mu_edca_param_rec;
+		e = &(req_mu.edca[to_aci[ac]]);
+
+		e->cw_min = q->ecw_min_max & 0xf;
+		e->cw_max = (q->ecw_min_max & 0xf0) >> 4;
+		e->aifsn = q->aifsn;
+		e->timer = q->mu_edca_timer;
+	}
+
+	return mt76_mcu_send_msg(&dev->mt76, MCU_CMD_SET_MU_EDCA_PARMS, &req_mu,
+				 sizeof(req_mu), false);
 }
 
 int mt7921_mcu_set_chan_info(struct mt7921_phy *phy, int cmd)