2024-03-20 11:10:32

by Shayne Chen

[permalink] [raw]
Subject: [PATCH 01/10] wifi: mt76: connac: use peer address for station BMC entry

Set peer address and aid for the BMC wtbl of station interface. For some
functions such as parsing MU_EDCA parameters from beacon, firmware will
need the peer address to do correct parsing.
Without this patch, MU uplink traffic would get suffered.

Reported-by: Howard Hsu <[email protected]>
Signed-off-by: Shayne Chen <[email protected]>
---
.../net/wireless/mediatek/mt76/mt76_connac_mcu.c | 9 ++++++++-
drivers/net/wireless/mediatek/mt76/mt7996/main.c | 15 ++++++++++-----
drivers/net/wireless/mediatek/mt76/mt7996/mcu.c | 6 +++---
.../net/wireless/mediatek/mt76/mt7996/mt7996.h | 2 +-
4 files changed, 22 insertions(+), 10 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c
index af0c2b2aacb0..e6cc3a68954b 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c
@@ -392,7 +392,14 @@ void mt76_connac_mcu_sta_basic_tlv(struct mt76_dev *dev, struct sk_buff *skb,

if (!sta) {
basic->conn_type = cpu_to_le32(CONNECTION_INFRA_BC);
- eth_broadcast_addr(basic->peer_addr);
+
+ if (is_mt799x(dev) && vif->type == NL80211_IFTYPE_STATION &&
+ !is_zero_ether_addr(vif->bss_conf.bssid)) {
+ memcpy(basic->peer_addr, vif->bss_conf.bssid, ETH_ALEN);
+ basic->aid = cpu_to_le16(vif->cfg.aid);
+ } else {
+ eth_broadcast_addr(basic->peer_addr);
+ }
return;
}

diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/main.c b/drivers/net/wireless/mediatek/mt76/mt7996/main.c
index f7da8d6dd903..995c265442df 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7996/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/main.c
@@ -238,7 +238,11 @@ static int mt7996_add_interface(struct ieee80211_hw *hw,
mt7996_init_bitrate_mask(vif);

mt7996_mcu_add_bss_info(phy, vif, true);
- mt7996_mcu_add_sta(dev, vif, NULL, true);
+ /* defer the first STA_REC of BMC entry to BSS_CHANGED_BSSID for STA
+ * interface, since firmware only records BSSID when the entry is new
+ */
+ if (vif->type != NL80211_IFTYPE_STATION)
+ mt7996_mcu_add_sta(dev, vif, NULL, true, true);
rcu_assign_pointer(dev->mt76.wcid[idx], &mvif->sta.wcid);

out:
@@ -256,7 +260,7 @@ static void mt7996_remove_interface(struct ieee80211_hw *hw,
struct mt7996_phy *phy = mt7996_hw_phy(hw);
int idx = msta->wcid.idx;

- mt7996_mcu_add_sta(dev, vif, NULL, false);
+ mt7996_mcu_add_sta(dev, vif, NULL, false, false);
mt7996_mcu_add_bss_info(phy, vif, false);

if (vif == phy->monitor_vif)
@@ -599,7 +603,8 @@ static void mt7996_bss_info_changed(struct ieee80211_hw *hw,
(changed & BSS_CHANGED_ASSOC && vif->cfg.assoc) ||
(changed & BSS_CHANGED_BEACON_ENABLED && info->enable_beacon)) {
mt7996_mcu_add_bss_info(phy, vif, true);
- mt7996_mcu_add_sta(dev, vif, NULL, true);
+ mt7996_mcu_add_sta(dev, vif, NULL, true,
+ !!(changed & BSS_CHANGED_BSSID));
}

if (changed & BSS_CHANGED_ERP_CTS_PROT)
@@ -688,7 +693,7 @@ int mt7996_mac_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
mt7996_mac_wtbl_update(dev, idx,
MT_WTBL_UPDATE_ADM_COUNT_CLEAR);

- ret = mt7996_mcu_add_sta(dev, vif, sta, true);
+ ret = mt7996_mcu_add_sta(dev, vif, sta, true, true);
if (ret)
return ret;

@@ -702,7 +707,7 @@ void mt7996_mac_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif,
struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
int i;

- mt7996_mcu_add_sta(dev, vif, sta, false);
+ mt7996_mcu_add_sta(dev, vif, sta, false, false);

mt7996_mac_wtbl_update(dev, msta->wcid.idx,
MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c
index b44abe2acc81..df6be2091615 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c
@@ -2133,7 +2133,7 @@ mt7996_mcu_add_group(struct mt7996_dev *dev, struct ieee80211_vif *vif,
}

int mt7996_mcu_add_sta(struct mt7996_dev *dev, struct ieee80211_vif *vif,
- struct ieee80211_sta *sta, bool enable)
+ struct ieee80211_sta *sta, bool enable, bool newly)
{
struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
struct mt7996_sta *msta;
@@ -2149,8 +2149,8 @@ int mt7996_mcu_add_sta(struct mt7996_dev *dev, struct ieee80211_vif *vif,
return PTR_ERR(skb);

/* starec basic */
- mt76_connac_mcu_sta_basic_tlv(&dev->mt76, skb, vif, sta, enable,
- !rcu_access_pointer(dev->mt76.wcid[msta->wcid.idx]));
+ mt76_connac_mcu_sta_basic_tlv(&dev->mt76, skb, vif, sta, enable, newly);
+
if (!enable)
goto out;

diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mt7996.h b/drivers/net/wireless/mediatek/mt76/mt7996/mt7996.h
index 36d1f247d55a..c30d133d9a71 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7996/mt7996.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/mt7996.h
@@ -450,7 +450,7 @@ int mt7996_mcu_add_dev_info(struct mt7996_phy *phy,
int mt7996_mcu_add_bss_info(struct mt7996_phy *phy,
struct ieee80211_vif *vif, int enable);
int mt7996_mcu_add_sta(struct mt7996_dev *dev, struct ieee80211_vif *vif,
- struct ieee80211_sta *sta, bool enable);
+ struct ieee80211_sta *sta, bool enable, bool newly);
int mt7996_mcu_add_tx_ba(struct mt7996_dev *dev,
struct ieee80211_ampdu_params *params,
bool add);
--
2.39.2



2024-03-20 11:10:39

by Shayne Chen

[permalink] [raw]
Subject: [PATCH 06/10] wifi: mt76: mt7996: fix potential memory leakage when reading chip temperature

From: Howard Hsu <[email protected]>

Without this commit, reading chip temperature will cause memory leakage.

Fixes: 6879b2e94172 ("wifi: mt76: mt7996: add thermal sensor device support")
Reported-by: Ryder Lee <[email protected]>
Signed-off-by: Howard Hsu <[email protected]>
Signed-off-by: Shayne Chen <[email protected]>
---
drivers/net/wireless/mediatek/mt76/mt7996/mcu.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c
index c4eefc593a40..d5e35f6dd52e 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c
@@ -3750,6 +3750,7 @@ int mt7996_mcu_get_temperature(struct mt7996_phy *phy)
} __packed * res;
struct sk_buff *skb;
int ret;
+ u32 temp;

ret = mt76_mcu_send_and_get_msg(&phy->dev->mt76, MCU_WM_UNI_CMD(THERMAL),
&req, sizeof(req), true, &skb);
@@ -3757,8 +3758,10 @@ int mt7996_mcu_get_temperature(struct mt7996_phy *phy)
return ret;

res = (void *)skb->data;
+ temp = le32_to_cpu(res->temperature);
+ dev_kfree_skb(skb);

- return le32_to_cpu(res->temperature);
+ return temp;
}

int mt7996_mcu_set_thermal_throttling(struct mt7996_phy *phy, u8 state)
--
2.39.2


2024-03-20 11:13:09

by Shayne Chen

[permalink] [raw]
Subject: [PATCH 03/10] wifi: mt76: mt7996: set RCPI value in rate control command

From: Peter Chiu <[email protected]>

Set RCPI values in mt7996_mcu_sta_rate_ctrl_tlv(), which can make the
FW rate control algorithm be initialized with a better MCS selection
table.

Signed-off-by: Peter Chiu <[email protected]>
Signed-off-by: Shayne Chen <[email protected]>
---
drivers/net/wireless/mediatek/mt76/mt7996/mcu.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c
index fd0cc945b22a..ddd93ec1dddd 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c
@@ -1968,6 +1968,7 @@ static void
mt7996_mcu_sta_rate_ctrl_tlv(struct sk_buff *skb, struct mt7996_dev *dev,
struct ieee80211_vif *vif, struct ieee80211_sta *sta)
{
+#define INIT_RCPI 180
struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
struct mt76_phy *mphy = mvif->phy->mt76;
struct cfg80211_chan_def *chandef = &mphy->chandef;
@@ -2065,6 +2066,8 @@ mt7996_mcu_sta_rate_ctrl_tlv(struct sk_buff *skb, struct mt7996_dev *dev,
IEEE80211_HE_6GHZ_CAP_MAX_AMPDU_LEN_EXP);
}
ra->sta_cap = cpu_to_le32(cap);
+
+ memset(ra->rx_rcpi, INIT_RCPI, sizeof(ra->rx_rcpi));
}

int mt7996_mcu_add_rate_ctrl(struct mt7996_dev *dev, struct ieee80211_vif *vif,
--
2.39.2