From 24299fc869f7caded8ae30a33f205ab37be729d4 Mon Sep 17 00:00:00 2001 From: Lorenzo Bianconi Date: Thu, 6 May 2021 20:13:34 +0200 Subject: mt76: mt7921: enable rx header traslation offload 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 Signed-off-by: Felix Fietkau --- .../net/wireless/mediatek/mt76/mt76_connac_mcu.c | 29 ++++++++++++ .../net/wireless/mediatek/mt76/mt76_connac_mcu.h | 3 ++ drivers/net/wireless/mediatek/mt76/mt7921/init.c | 4 +- drivers/net/wireless/mediatek/mt76/mt7921/mac.c | 52 +++++++++++++++------- drivers/net/wireless/mediatek/mt76/mt7921/mac.h | 11 +++++ drivers/net/wireless/mediatek/mt76/mt7921/main.c | 18 ++++++++ 6 files changed, 101 insertions(+), 16 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c index 443e5109c1d9..7b8f8e6f431d 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, @@ -870,6 +897,8 @@ 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 73741e148240..d5ad92a440c3 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 97a0ef331ac3..8016f8377c8f 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/main.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/main.c @@ -1163,6 +1163,23 @@ 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, @@ -1177,6 +1194,7 @@ 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, -- cgit v1.2.3