6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Benjamin Lin benjamin-jw.lin@mediatek.com
[ Upstream commit 5c2a25a1ab76a2976dddc5ffd58498866f3ef7c2 ]
Fix wrong calculation of the channel times due to incorrect interpretation from the FW event.
Fixes: 98686cd21624 ("wifi: mt76: mt7996: add driver for MediaTek Wi-Fi 7 (802.11be) devices") Signed-off-by: Benjamin Lin benjamin-jw.lin@mediatek.com Signed-off-by: Shayne Chen shayne.chen@mediatek.com Link: https://patch.msgid.link/20250114101026.3587702-4-shayne.chen@mediatek.com Signed-off-by: Felix Fietkau nbd@nbd.name Signed-off-by: Sasha Levin sashal@kernel.org --- .../net/wireless/mediatek/mt76/mt7996/mcu.c | 45 ++++++++++++------- 1 file changed, 29 insertions(+), 16 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c index 302171e103597..19afe89fce785 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c @@ -3189,6 +3189,13 @@ int mt7996_mcu_get_chip_config(struct mt7996_dev *dev, u32 *cap)
int mt7996_mcu_get_chan_mib_info(struct mt7996_phy *phy, bool chan_switch) { + enum { + IDX_TX_TIME, + IDX_RX_TIME, + IDX_OBSS_AIRTIME, + IDX_NON_WIFI_TIME, + IDX_NUM + }; struct { struct { u8 band; @@ -3198,16 +3205,15 @@ int mt7996_mcu_get_chan_mib_info(struct mt7996_phy *phy, bool chan_switch) __le16 tag; __le16 len; __le32 offs; - } data[4]; + } data[IDX_NUM]; } __packed req = { .hdr.band = phy->mt76->band_idx, }; - /* strict order */ static const u32 offs[] = { - UNI_MIB_TX_TIME, - UNI_MIB_RX_TIME, - UNI_MIB_OBSS_AIRTIME, - UNI_MIB_NON_WIFI_TIME, + [IDX_TX_TIME] = UNI_MIB_TX_TIME, + [IDX_RX_TIME] = UNI_MIB_RX_TIME, + [IDX_OBSS_AIRTIME] = UNI_MIB_OBSS_AIRTIME, + [IDX_NON_WIFI_TIME] = UNI_MIB_NON_WIFI_TIME, }; struct mt76_channel_state *state = phy->mt76->chan_state; struct mt76_channel_state *state_ts = &phy->state_ts; @@ -3216,7 +3222,7 @@ int mt7996_mcu_get_chan_mib_info(struct mt7996_phy *phy, bool chan_switch) struct sk_buff *skb; int i, ret;
- for (i = 0; i < 4; i++) { + for (i = 0; i < IDX_NUM; i++) { req.data[i].tag = cpu_to_le16(UNI_CMD_MIB_DATA); req.data[i].len = cpu_to_le16(sizeof(req.data[i])); req.data[i].offs = cpu_to_le32(offs[i]); @@ -3235,17 +3241,24 @@ int mt7996_mcu_get_chan_mib_info(struct mt7996_phy *phy, bool chan_switch) goto out;
#define __res_u64(s) le64_to_cpu(res[s].data) - state->cc_tx += __res_u64(1) - state_ts->cc_tx; - state->cc_bss_rx += __res_u64(2) - state_ts->cc_bss_rx; - state->cc_rx += __res_u64(2) + __res_u64(3) - state_ts->cc_rx; - state->cc_busy += __res_u64(0) + __res_u64(1) + __res_u64(2) + __res_u64(3) - + state->cc_tx += __res_u64(IDX_TX_TIME) - state_ts->cc_tx; + state->cc_bss_rx += __res_u64(IDX_RX_TIME) - state_ts->cc_bss_rx; + state->cc_rx += __res_u64(IDX_RX_TIME) + + __res_u64(IDX_OBSS_AIRTIME) - + state_ts->cc_rx; + state->cc_busy += __res_u64(IDX_TX_TIME) + + __res_u64(IDX_RX_TIME) + + __res_u64(IDX_OBSS_AIRTIME) + + __res_u64(IDX_NON_WIFI_TIME) - state_ts->cc_busy; - out: - state_ts->cc_tx = __res_u64(1); - state_ts->cc_bss_rx = __res_u64(2); - state_ts->cc_rx = __res_u64(2) + __res_u64(3); - state_ts->cc_busy = __res_u64(0) + __res_u64(1) + __res_u64(2) + __res_u64(3); + state_ts->cc_tx = __res_u64(IDX_TX_TIME); + state_ts->cc_bss_rx = __res_u64(IDX_RX_TIME); + state_ts->cc_rx = __res_u64(IDX_RX_TIME) + __res_u64(IDX_OBSS_AIRTIME); + state_ts->cc_busy = __res_u64(IDX_TX_TIME) + + __res_u64(IDX_RX_TIME) + + __res_u64(IDX_OBSS_AIRTIME) + + __res_u64(IDX_NON_WIFI_TIME); #undef __res_u64
dev_kfree_skb(skb);