2021-11-11 19:45:39

by Ryder Lee

[permalink] [raw]
Subject: [PATCH v2] mt76: mt7915: fix SMPS operation fail

TGn fails sending SM power save mode action frame to the AP to switch
from dynamic SMPS mode to static mode.

Reported-by: Fang Zhao <[email protected]>
Signed-off-by: Fang Zhao <[email protected]>
Signed-off-by: Ryder Lee <[email protected]>
---
v2 - move RATE_PARAM_MMPS_UPDATE operation into mt7915_mcu_add_smps
---
.../net/wireless/mediatek/mt76/mt7915/mcu.c | 66 +++++++++++--------
.../net/wireless/mediatek/mt76/mt7915/mcu.h | 1 +
2 files changed, 39 insertions(+), 28 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
index 3a496046fe21..72fffce3f24d 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
@@ -1753,33 +1753,6 @@ int mt7915_mcu_sta_update_hdr_trans(struct mt7915_dev *dev,
true);
}

-int mt7915_mcu_add_smps(struct mt7915_dev *dev, struct ieee80211_vif *vif,
- struct ieee80211_sta *sta)
-{
- struct mt7915_vif *mvif = (struct mt7915_vif *)vif->drv_priv;
- struct mt7915_sta *msta = (struct mt7915_sta *)sta->drv_priv;
- struct wtbl_req_hdr *wtbl_hdr;
- struct tlv *sta_wtbl;
- struct sk_buff *skb;
-
- skb = mt7915_mcu_alloc_sta_req(dev, mvif, msta,
- MT7915_STA_UPDATE_MAX_SIZE);
- if (IS_ERR(skb))
- return PTR_ERR(skb);
-
- sta_wtbl = mt7915_mcu_add_tlv(skb, STA_REC_WTBL, sizeof(struct tlv));
-
- wtbl_hdr = mt7915_mcu_alloc_wtbl_req(dev, msta, WTBL_SET, sta_wtbl,
- &skb);
- if (IS_ERR(wtbl_hdr))
- return PTR_ERR(wtbl_hdr);
-
- mt7915_mcu_wtbl_smps_tlv(skb, sta, sta_wtbl, wtbl_hdr);
-
- return mt76_mcu_skb_send_msg(&dev->mt76, skb,
- MCU_EXT_CMD(STA_REC_UPDATE), true);
-}
-
static inline bool
mt7915_is_ebf_supported(struct mt7915_phy *phy, struct ieee80211_vif *vif,
struct ieee80211_sta *sta, bool bfee)
@@ -2077,7 +2050,11 @@ int mt7915_mcu_set_fixed_rate_ctrl(struct mt7915_dev *dev,
case RATE_PARAM_FIXED_MCS:
case RATE_PARAM_FIXED_GI:
case RATE_PARAM_FIXED_HE_LTF:
- ra->phy = *phy;
+ if (phy)
+ ra->phy = *phy;
+ break;
+ case RATE_PARAM_MMPS_UPDATE:
+ ra->mmps_mode = (sta->smps_mode == IEEE80211_SMPS_DYNAMIC);
break;
default:
break;
@@ -2088,6 +2065,39 @@ int mt7915_mcu_set_fixed_rate_ctrl(struct mt7915_dev *dev,
MCU_EXT_CMD(STA_REC_UPDATE), true);
}

+int mt7915_mcu_add_smps(struct mt7915_dev *dev, struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta)
+{
+ struct mt7915_vif *mvif = (struct mt7915_vif *)vif->drv_priv;
+ struct mt7915_sta *msta = (struct mt7915_sta *)sta->drv_priv;
+ struct wtbl_req_hdr *wtbl_hdr;
+ struct tlv *sta_wtbl;
+ struct sk_buff *skb;
+ int ret;
+
+ skb = mt7915_mcu_alloc_sta_req(dev, mvif, msta,
+ MT7915_STA_UPDATE_MAX_SIZE);
+ if (IS_ERR(skb))
+ return PTR_ERR(skb);
+
+ sta_wtbl = mt7915_mcu_add_tlv(skb, STA_REC_WTBL, sizeof(struct tlv));
+
+ wtbl_hdr = mt7915_mcu_alloc_wtbl_req(dev, msta, WTBL_SET, sta_wtbl,
+ &skb);
+ if (IS_ERR(wtbl_hdr))
+ return PTR_ERR(wtbl_hdr);
+
+ mt7915_mcu_wtbl_smps_tlv(skb, sta, sta_wtbl, wtbl_hdr);
+
+ ret = mt76_mcu_skb_send_msg(&dev->mt76, skb,
+ MCU_EXT_CMD(STA_REC_UPDATE), true);
+ if (ret)
+ return ret;
+
+ return mt7915_mcu_set_fixed_rate_ctrl(dev, vif, sta, NULL,
+ RATE_PARAM_MMPS_UPDATE);
+}
+
static int
mt7915_mcu_add_rate_ctrl_fixed(struct mt7915_dev *dev,
struct ieee80211_vif *vif,
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
index e8501234f686..11728454b92c 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
@@ -960,6 +960,7 @@ struct sta_rec_ra_fixed {

enum {
RATE_PARAM_FIXED = 3,
+ RATE_PARAM_MMPS_UPDATE = 5,
RATE_PARAM_FIXED_HE_LTF = 7,
RATE_PARAM_FIXED_MCS,
RATE_PARAM_FIXED_GI = 11,
--
2.29.2