As already done for mt7615 and mt7915, enable rx header translation
offload for mt7921 in order to reduce cpu load in the rx path.
Signed-off-by: Lorenzo Bianconi <lorenzo@xxxxxxxxxx>
---
.../wireless/mediatek/mt76/mt76_connac_mcu.c | 29 +++++++++++
.../wireless/mediatek/mt76/mt76_connac_mcu.h | 3 ++
.../net/wireless/mediatek/mt76/mt7921/init.c | 4 +-
.../net/wireless/mediatek/mt76/mt7921/mac.c | 52 +++++++++++++------
.../net/wireless/mediatek/mt76/mt7921/mac.h | 11 ++++
.../net/wireless/mediatek/mt76/mt7921/main.c | 18 +++++++
6 files changed, 101 insertions(+), 16 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c
index 95dcd43c2cf9..f9178e26cf2b 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c
@@ -418,6 +418,33 @@ void mt76_connac_mcu_wtbl_hdr_trans_tlv(struct sk_buff *skb,
}
EXPORT_SYMBOL_GPL(mt76_connac_mcu_wtbl_hdr_trans_tlv);
+int mt76_connac_mcu_sta_update_hdr_trans(struct mt76_dev *dev,
+ struct ieee80211_vif *vif,
+ struct mt76_wcid *wcid, int cmd)
+{
+ struct mt76_vif *mvif = (struct mt76_vif *)vif->drv_priv;
+ struct wtbl_req_hdr *wtbl_hdr;
+ struct tlv *sta_wtbl;
+ struct sk_buff *skb;
+
+ skb = mt76_connac_mcu_alloc_sta_req(dev, mvif, wcid);
+ if (IS_ERR(skb))
+ return PTR_ERR(skb);
+
+ sta_wtbl = mt76_connac_mcu_add_tlv(skb, STA_REC_WTBL,
+ sizeof(struct tlv));
+
+ wtbl_hdr = mt76_connac_mcu_alloc_wtbl_req(dev, wcid, WTBL_SET,
+ sta_wtbl, &skb);
+ if (IS_ERR(wtbl_hdr))
+ return PTR_ERR(wtbl_hdr);
+
+ mt76_connac_mcu_wtbl_hdr_trans_tlv(skb, vif, wcid, sta_wtbl, wtbl_hdr);
+
+ return mt76_mcu_skb_send_msg(dev, skb, cmd, true);
+}
+EXPORT_SYMBOL_GPL(mt76_connac_mcu_sta_update_hdr_trans);
+
void mt76_connac_mcu_wtbl_generic_tlv(struct mt76_dev *dev,
struct sk_buff *skb,
struct ieee80211_vif *vif,
@@ -866,6 +893,8 @@ int mt76_connac_mcu_add_sta_cmd(struct mt76_phy *phy,
mt76_connac_mcu_wtbl_generic_tlv(dev, skb, info->vif,
info->sta, sta_wtbl,
wtbl_hdr);
+ mt76_connac_mcu_wtbl_hdr_trans_tlv(skb, info->vif, info->wcid,
+ sta_wtbl, wtbl_hdr);
if (info->sta)
mt76_connac_mcu_wtbl_ht_tlv(dev, skb, info->sta,
sta_wtbl, wtbl_hdr);
diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
index f0493924fa89..01fc9f2c2f4a 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
@@ -972,6 +972,9 @@ void mt76_connac_mcu_wtbl_hdr_trans_tlv(struct sk_buff *skb,
struct ieee80211_vif *vif,
struct mt76_wcid *wcid,
void *sta_wtbl, void *wtbl_tlv);
+int mt76_connac_mcu_sta_update_hdr_trans(struct mt76_dev *dev,
+ struct ieee80211_vif *vif,
+ struct mt76_wcid *wcid, int cmd);
void mt76_connac_mcu_sta_tlv(struct mt76_phy *mphy, struct sk_buff *skb,
struct ieee80211_sta *sta,
struct ieee80211_vif *vif,
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/init.c b/drivers/net/wireless/mediatek/mt76/mt7921/init.c
index 93cd05f653dd..91885d7417a4 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/init.c
@@ -78,6 +78,7 @@ mt7921_init_wiphy(struct ieee80211_hw *hw)
ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS);
ieee80211_hw_set(hw, HAS_RATE_CONTROL);
ieee80211_hw_set(hw, SUPPORTS_TX_ENCAP_OFFLOAD);
+ ieee80211_hw_set(hw, SUPPORTS_RX_DECAP_OFFLOAD);
ieee80211_hw_set(hw, WANT_MONITOR_VIF);
ieee80211_hw_set(hw, SUPPORTS_PS);
ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
@@ -127,7 +128,8 @@ void mt7921_mac_init(struct mt7921_dev *dev)
mt76_rmw_field(dev, MT_MDP_DCR1, MT_MDP_DCR1_MAX_RX_LEN, 1536);
/* enable hardware de-agg */
mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_DAMSDU_EN);
- mt76_clear(dev, MT_MDP_DCR0, MT_MDP_DCR0_RX_HDR_TRANS_EN);
+ /* enable hardware rx header translation */
+ mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_RX_HDR_TRANS_EN);
for (i = 0; i < MT7921_WTBL_SIZE; i++)
mt7921_mac_wtbl_update(dev, i,
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
index 7e57d230e63a..74974f689462 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c
@@ -309,6 +309,8 @@ mt7921_mac_assoc_rssi(struct mt7921_dev *dev, struct sk_buff *skb)
int mt7921_mac_fill_rx(struct mt7921_dev *dev, struct sk_buff *skb)
{
struct mt76_rx_status *status = (struct mt76_rx_status *)skb->cb;
+ bool hdr_trans, unicast, insert_ccmp_hdr = false;
+ u8 chfreq, qos_ctl = 0, remove_pad, amsdu_info;
struct mt76_phy *mphy = &dev->mt76.phy;
struct mt7921_phy *phy = &dev->phy;
struct ieee80211_supported_band *sband;
@@ -320,10 +322,9 @@ int mt7921_mac_fill_rx(struct mt7921_dev *dev, struct sk_buff *skb)
u32 rxd2 = le32_to_cpu(rxd[2]);
u32 rxd3 = le32_to_cpu(rxd[3]);
u32 rxd4 = le32_to_cpu(rxd[4]);
- bool unicast, insert_ccmp_hdr = false;
- u8 remove_pad, amsdu_info;
+ u16 seq_ctrl = 0;
+ __le16 fc = 0;
int i, idx;
- u8 chfreq;
memset(status, 0, sizeof(*status));
@@ -339,6 +340,7 @@ int mt7921_mac_fill_rx(struct mt7921_dev *dev, struct sk_buff *skb)
chfreq = FIELD_GET(MT_RXD3_NORMAL_CH_FREQ, rxd3);
unicast = FIELD_GET(MT_RXD3_NORMAL_ADDR_TYPE, rxd3) == MT_RXD3_NORMAL_U2M;
idx = FIELD_GET(MT_RXD1_NORMAL_WLAN_IDX, rxd1);
+ hdr_trans = rxd2 & MT_RXD2_NORMAL_HDR_TRANS;
status->wcid = mt7921_rx_get_wcid(dev, idx, unicast);
if (status->wcid) {
@@ -381,6 +383,13 @@ int mt7921_mac_fill_rx(struct mt7921_dev *dev, struct sk_buff *skb)
rxd += 6;
if (rxd1 & MT_RXD1_NORMAL_GROUP_4) {
+ u32 v0 = le32_to_cpu(rxd[0]);
+ u32 v2 = le32_to_cpu(rxd[2]);
+
+ fc = cpu_to_le16(FIELD_GET(MT_RXD6_FRAME_CONTROL, v0));
+ seq_ctrl = FIELD_GET(MT_RXD8_SEQ_CTRL, v2);
+ qos_ctl = FIELD_GET(MT_RXD8_QOS_CTL, v2);
+
rxd += 4;
if ((u8 *)rxd - skb->data >= skb->len)
return -EINVAL;
@@ -549,15 +558,30 @@ int mt7921_mac_fill_rx(struct mt7921_dev *dev, struct sk_buff *skb)
if (status->amsdu) {
status->first_amsdu = amsdu_info == MT_RXD4_FIRST_AMSDU_FRAME;
status->last_amsdu = amsdu_info == MT_RXD4_LAST_AMSDU_FRAME;
- memmove(skb->data + 2, skb->data,
- ieee80211_get_hdrlen_from_skb(skb));
- skb_pull(skb, 2);
+ if (!hdr_trans) {
+ memmove(skb->data + 2, skb->data,
+ ieee80211_get_hdrlen_from_skb(skb));
+ skb_pull(skb, 2);
+ }
}
- if (insert_ccmp_hdr) {
- u8 key_id = FIELD_GET(MT_RXD1_NORMAL_KEY_ID, rxd1);
+ if (!hdr_trans) {
+ if (insert_ccmp_hdr) {
+ u8 key_id = FIELD_GET(MT_RXD1_NORMAL_KEY_ID, rxd1);
- mt76_insert_ccmp_hdr(skb, key_id);
+ mt76_insert_ccmp_hdr(skb, key_id);
+ }
+
+ hdr = mt76_skb_get_hdr(skb);
+ fc = hdr->frame_control;
+ if (ieee80211_is_data_qos(fc)) {
+ seq_ctrl = le16_to_cpu(hdr->seq_ctrl);
+ qos_ctl = *ieee80211_get_qos_ctl(hdr);
+ }
+ } else {
+ status->flag &= ~(RX_FLAG_RADIOTAP_HE |
+ RX_FLAG_RADIOTAP_HE_MU);
+ status->flag |= RX_FLAG_8023;
}
mt7921_mac_assoc_rssi(dev, skb);
@@ -565,14 +589,12 @@ int mt7921_mac_fill_rx(struct mt7921_dev *dev, struct sk_buff *skb)
if (rxv && status->flag & RX_FLAG_RADIOTAP_HE)
mt7921_mac_decode_he_radiotap(skb, status, rxv, mode);
- hdr = mt76_skb_get_hdr(skb);
- if (!status->wcid || !ieee80211_is_data_qos(hdr->frame_control))
+ if (!status->wcid || !ieee80211_is_data_qos(fc))
return 0;
- status->aggr = unicast &&
- !ieee80211_is_qos_nullfunc(hdr->frame_control);
- status->qos_ctl = *ieee80211_get_qos_ctl(hdr);
- status->seqno = IEEE80211_SEQ_TO_SN(le16_to_cpu(hdr->seq_ctrl));
+ status->aggr = unicast && !ieee80211_is_qos_nullfunc(fc);
+ status->seqno = IEEE80211_SEQ_TO_SN(seq_ctrl);
+ status->qos_ctl = qos_ctl;
return 0;
}
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mac.h b/drivers/net/wireless/mediatek/mt76/mt7921/mac.h
index 435c138c27d1..3af67fac213d 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mac.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mac.h
@@ -100,6 +100,17 @@ enum rx_pkt_type {
#define MT_RXD3_NORMAL_PF_MODE BIT(29)
#define MT_RXD3_NORMAL_PF_STS GENMASK(31, 30)
+/* RXD GROUP4 */
+#define MT_RXD6_FRAME_CONTROL GENMASK(15, 0)
+#define MT_RXD6_TA_LO GENMASK(31, 16)
+
+#define MT_RXD7_TA_HI GENMASK(31, 0)
+
+#define MT_RXD8_SEQ_CTRL GENMASK(15, 0)
+#define MT_RXD8_QOS_CTL GENMASK(31, 16)
+
+#define MT_RXD9_HT_CONTROL GENMASK(31, 0)
+
/* P-RXV DW0 */
#define MT_PRXV_TX_RATE GENMASK(6, 0)
#define MT_PRXV_TX_DCM BIT(4)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/main.c b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
index f4c27aa41048..39b3e769925e 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
@@ -1164,6 +1164,23 @@ static void mt7921_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
HZ / 2);
}
+static void mt7921_sta_set_decap_offload(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta,
+ bool enabled)
+{
+ struct mt7921_sta *msta = (struct mt7921_sta *)sta->drv_priv;
+ struct mt7921_dev *dev = mt7921_hw_dev(hw);
+
+ if (enabled)
+ set_bit(MT_WCID_FLAG_HDR_TRANS, &msta->wcid.flags);
+ else
+ clear_bit(MT_WCID_FLAG_HDR_TRANS, &msta->wcid.flags);
+
+ mt76_connac_mcu_sta_update_hdr_trans(&dev->mt76, vif, &msta->wcid,
+ MCU_UNI_CMD_STA_REC_UPDATE);
+}
+
const struct ieee80211_ops mt7921_ops = {
.tx = mt7921_tx,
.start = mt7921_start,
@@ -1178,6 +1195,7 @@ const struct ieee80211_ops mt7921_ops = {
.sta_remove = mt7921_sta_remove,
.sta_pre_rcu_remove = mt76_sta_pre_rcu_remove,
.set_key = mt7921_set_key,
+ .sta_set_decap_offload = mt7921_sta_set_decap_offload,
.ampdu_action = mt7921_ampdu_action,
.set_rts_threshold = mt7921_set_rts_threshold,
.wake_tx_queue = mt76_wake_tx_queue,
--
2.30.2
