wifi: mt76: mt7925: handle 320MHz bandwidth in RXV and TXS

The RX vector (RXV) and TX status (TXS) parsing in mac.c lack handling
for 320MHz channel width. When the hardware reports 320MHz in the
bandwidth field, mt7925_mac_fill_rx_rate() returns -EINVAL and
mt7925_mac_add_txs_skb() records no bandwidth stats.

Add IEEE80211_STA_RX_BW_320 cases to both functions. The RXV parser
also handles BW_320+1 since the hardware can report 320MHz in two
adjacent encoding positions.

Tested-by: Marcin FM <marcin@lgic.pl>
Tested-by: Cristian-Florin Radoi <radoi.chris@gmail.com>
Tested-by: George Salukvadze <giosal90@gmail.com>
Tested-by: Evgeny Kapusta <3193631@gmail.com>
Tested-by: Samu Toljamo <samu.toljamo@gmail.com>
Tested-by: Ariel Rosenfeld <ariel.rosenfeld.750@gmail.com>
Tested-by: Chapuis Dario <chapuisdario4@gmail.com>
Tested-by: Thibaut François <tibo@humeurlibre.fr>
Tested-by: 张旭涵 <Loong.0x00@gmail.com>
Reviewed-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Javier Tia <floss@jetm.me>
Link: https://patch.msgid.link/20260425195011.790265-4-sean.wang@kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>

diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/mac.c b/drivers/net/wireless/mediatek/mt76/mt7925/mac.c
index c47bd812b66b9c8dcdd2f283eec1efc0151f7d20..d681005cc6ff5596a34c76e0ac7d4b962a553369 100644 (file)
--- a/drivers/net/wireless/mediatek/mt76/mt7925/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7925/mac.c
@@ -339,6 +339,11 @@ mt7925_mac_fill_rx_rate(struct mt792x_dev *dev,
        case IEEE80211_STA_RX_BW_160:
                status->bw = RATE_INFO_BW_160;
                break;
+       /* RXV can report 320 in two positions */
+       case IEEE80211_STA_RX_BW_320:
+       case IEEE80211_STA_RX_BW_320 + 1:
+               status->bw = RATE_INFO_BW_320;
+               break;
        default:
                return -EINVAL;
        }
@@ -997,6 +1002,10 @@ mt7925_mac_add_txs_skb(struct mt792x_dev *dev, struct mt76_wcid *wcid,
        stats->tx_mode[mode]++;
 
        switch (FIELD_GET(MT_TXS0_BW, txs)) {
+       case IEEE80211_STA_RX_BW_320:
+               rate.bw = RATE_INFO_BW_320;
+               stats->tx_bw[4]++;
+               break;
        case IEEE80211_STA_RX_BW_160:
                rate.bw = RATE_INFO_BW_160;
                stats->tx_bw[3]++;