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wifi: mt76: mt7996: leave PS when a 4-address connection is established

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Because 4 address non-AMSDU packets do not have a bssid field, the
hardware cannot get the bssid. Without the bssid, stations are not
able to leave PS mode due to HW design. Wake up non-setup links when
4-address mode is established to prevent this issue.

mt7992 and mt7990 handle this via the BSSID mapping band config
instead, so restrict the command to mt7996.

Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Link: https://patch.msgid.link/20260724124813.3961474-16-nbd@nbd.name
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Peter Chiu
2026-08-01 14:49:36 +00:00
committed by Felix Fietkau
parent 043e042666
commit 490d81fd0c
5 changed files with 35 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
+1
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@@ -867,6 +867,7 @@ enum {
STA_REC_HDRT = 0x28,
STA_REC_EML_OP = 0x29,
STA_REC_HDR_TRANS = 0x2B,
STA_REC_PS_LEAVE = 0x45,
STA_REC_MAX_NUM
};
drivers/net/wireless/mediatek/mt76/mt7996/main.c
+8
View File
@@ -2027,6 +2027,14 @@ static void mt7996_sta_set_4addr(struct ieee80211_hw *hw,
continue;
mt7996_mcu_wtbl_update_hdr_trans(dev, vif, link, msta_link);
/* HW cannot derive the BSSID from 4-address non-AMSDU frames,
* so PS exit is missed on links other than the setup link.
* Let the firmware wake those links instead.
*/
if (enabled && msta->deflink_id != link_id &&
is_mt7996(&dev->mt76))
mt7996_mcu_ps_leave(dev, link, msta_link);
}
mutex_unlock(&dev->mt76.mutex);
drivers/net/wireless/mediatek/mt76/mt7996/mcu.c
+18
View File
@@ -5191,6 +5191,24 @@ int mt7996_mcu_wtbl_update_hdr_trans(struct mt7996_dev *dev,
MCU_WMWA_UNI_CMD(STA_REC_UPDATE), true);
}
int mt7996_mcu_ps_leave(struct mt7996_dev *dev, struct mt7996_vif_link *link,
struct mt7996_sta_link *msta_link)
{
struct sk_buff *skb;
skb = __mt76_connac_mcu_alloc_sta_req(&dev->mt76, &link->mt76,
&msta_link->wcid,
MT7996_STA_UPDATE_MAX_SIZE);
if (IS_ERR(skb))
return PTR_ERR(skb);
mt76_connac_mcu_add_tlv(skb, STA_REC_PS_LEAVE,
sizeof(struct sta_rec_ps_leave));
return mt76_mcu_skb_send_msg(&dev->mt76, skb,
MCU_WMWA_UNI_CMD(STA_REC_UPDATE), true);
}
int mt7996_mcu_set_fixed_rate_table(struct mt7996_phy *phy, u8 table_idx,
u16 rate_idx, bool beacon)
{
drivers/net/wireless/mediatek/mt76/mt7996/mcu.h
+6
View File
@@ -680,6 +680,12 @@ struct sta_rec_hdr_trans {
u8 mesh;
} __packed;
struct sta_rec_ps_leave {
__le16 tag;
__le16 len;
u8 __rsv[4];
} __packed;
struct sta_rec_mld_setup {
__le16 tag;
__le16 len;
drivers/net/wireless/mediatek/mt76/mt7996/mt7996.h
+2
View File
@@ -928,6 +928,8 @@ int mt7996_mcu_wtbl_update_hdr_trans(struct mt7996_dev *dev,
struct ieee80211_vif *vif,
struct mt7996_vif_link *link,
struct mt7996_sta_link *msta_link);
int mt7996_mcu_ps_leave(struct mt7996_dev *dev, struct mt7996_vif_link *link,
struct mt7996_sta_link *msta_link);
int mt7996_mcu_cp_support(struct mt7996_dev *dev, u8 mode);
int mt7996_mcu_set_emlsr_mode(struct mt7996_dev *dev,
struct ieee80211_vif *vif,