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authorBenjamin Lin <benjamin-jw.lin@mediatek.com>2025-01-14 18:10:21 +0800
committerFelix Fietkau <nbd@nbd.name>2025-01-14 13:42:30 +0100
commit5c2a25a1ab76a2976dddc5ffd58498866f3ef7c2 (patch)
tree685f7838cdb96d4d97f4343f4d12320fdabcf620
parent7e3aef59a403ade5dd4ea02edc2d7138a66d74b6 (diff)
wifi: mt76: mt7996: fix incorrect indexing of MIB FW event
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>
-rw-r--r--drivers/net/wireless/mediatek/mt76/mt7996/mcu.c45
1 files 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 58fc06a69539..9fb54388d975 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c
@@ -3678,6 +3678,13 @@ 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;
@@ -3687,16 +3694,15 @@ 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;
@@ -3705,7 +3711,7 @@ 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]);
@@ -3724,17 +3730,24 @@ 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);