From 320c85e6d038e75c0b895dde8c10c5d1bf9aab5f Mon Sep 17 00:00:00 2001 From: Lorenzo Bianconi Date: Sun, 7 Oct 2018 11:57:21 +0200 Subject: [PATCH] mt76: disable ldpc coding for mt76x0 devices Disable ldpc coding for mt76x0 devices. Morover remove mt76x02_mac_fill_txwi routine since it is used just in mt76x02_mac_write_txwi Signed-off-by: Lorenzo Bianconi Signed-off-by: Felix Fietkau --- drivers/net/wireless/mediatek/mt76/mt76x02.h | 7 ++ .../net/wireless/mediatek/mt76/mt76x02_mac.c | 77 ++++++++----------- 2 files changed, 41 insertions(+), 43 deletions(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02.h b/drivers/net/wireless/mediatek/mt76/mt76x02.h index e78708d55baf..fe731529144c 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x02.h +++ b/drivers/net/wireless/mediatek/mt76/mt76x02.h @@ -161,6 +161,13 @@ void mt76x02_set_beacon_offsets(struct mt76x02_dev *dev); void mt76x02_set_irq_mask(struct mt76x02_dev *dev, u32 clear, u32 set); void mt76x02_mac_start(struct mt76x02_dev *dev); +static inline bool is_mt76x2(struct mt76x02_dev *dev) +{ + return mt76_chip(&dev->mt76) == 0x7612 || + mt76_chip(&dev->mt76) == 0x7662 || + mt76_chip(&dev->mt76) == 0x7602; +} + static inline void mt76x02_irq_enable(struct mt76x02_dev *dev, u32 mask) { mt76x02_set_irq_mask(dev, 0, mask); diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c b/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c index 69132b971c30..10578e4cb269 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c @@ -156,48 +156,6 @@ void mt76x02_txq_init(struct mt76x02_dev *dev, struct ieee80211_txq *txq) } EXPORT_SYMBOL_GPL(mt76x02_txq_init); -static void -mt76x02_mac_fill_txwi(struct mt76x02_txwi *txwi, struct sk_buff *skb, - struct ieee80211_sta *sta, int len, u8 nss) -{ - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; - u16 txwi_flags = 0; - - if (info->flags & IEEE80211_TX_CTL_LDPC) - txwi->rate |= cpu_to_le16(MT_RXWI_RATE_LDPC); - if ((info->flags & IEEE80211_TX_CTL_STBC) && nss == 1) - txwi->rate |= cpu_to_le16(MT_RXWI_RATE_STBC); - if (nss > 1 && sta && sta->smps_mode == IEEE80211_SMPS_DYNAMIC) - txwi_flags |= MT_TXWI_FLAGS_MMPS; - if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) - txwi->ack_ctl |= MT_TXWI_ACK_CTL_REQ; - if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) - txwi->ack_ctl |= MT_TXWI_ACK_CTL_NSEQ; - if (info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE) - txwi->pktid |= MT_TXWI_PKTID_PROBE; - if ((info->flags & IEEE80211_TX_CTL_AMPDU) && sta) { - u8 ba_size = IEEE80211_MIN_AMPDU_BUF; - - ba_size <<= sta->ht_cap.ampdu_factor; - ba_size = min_t(int, 63, ba_size - 1); - if (info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE) - ba_size = 0; - txwi->ack_ctl |= FIELD_PREP(MT_TXWI_ACK_CTL_BA_WINDOW, ba_size); - - txwi_flags |= MT_TXWI_FLAGS_AMPDU | - FIELD_PREP(MT_TXWI_FLAGS_MPDU_DENSITY, - sta->ht_cap.ampdu_density); - } - - if (ieee80211_is_probe_resp(hdr->frame_control) || - ieee80211_is_beacon(hdr->frame_control)) - txwi_flags |= MT_TXWI_FLAGS_TS; - - txwi->flags |= cpu_to_le16(txwi_flags); - txwi->len_ctl = cpu_to_le16(len); -} - static __le16 mt76x02_mac_tx_rate_val(struct mt76x02_dev *dev, const struct ieee80211_tx_rate *rate, u8 *nss_val) @@ -344,10 +302,12 @@ void mt76x02_mac_write_txwi(struct mt76x02_dev *dev, struct mt76x02_txwi *txwi, struct sk_buff *skb, struct mt76_wcid *wcid, struct ieee80211_sta *sta, int len) { + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); struct ieee80211_tx_rate *rate = &info->control.rates[0]; struct ieee80211_key_conf *key = info->control.hw_key; u16 rate_ht_mask = FIELD_PREP(MT_RXWI_RATE_PHY, BIT(1) | BIT(2)); + u16 txwi_flags = 0; u8 nss; s8 txpwr_adj, max_txpwr_adj; u8 ccmp_pn[8], nstreams = dev->mt76.chainmask & 0xf; @@ -396,7 +356,38 @@ void mt76x02_mac_write_txwi(struct mt76x02_dev *dev, struct mt76x02_txwi *txwi, !(txwi->rate & cpu_to_le16(rate_ht_mask))) txwi->txstream = 0x93; - mt76x02_mac_fill_txwi(txwi, skb, sta, len, nss); + if (is_mt76x2(dev) && (info->flags & IEEE80211_TX_CTL_LDPC)) + txwi->rate |= cpu_to_le16(MT_RXWI_RATE_LDPC); + if ((info->flags & IEEE80211_TX_CTL_STBC) && nss == 1) + txwi->rate |= cpu_to_le16(MT_RXWI_RATE_STBC); + if (nss > 1 && sta && sta->smps_mode == IEEE80211_SMPS_DYNAMIC) + txwi_flags |= MT_TXWI_FLAGS_MMPS; + if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) + txwi->ack_ctl |= MT_TXWI_ACK_CTL_REQ; + if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) + txwi->ack_ctl |= MT_TXWI_ACK_CTL_NSEQ; + if (info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE) + txwi->pktid |= MT_TXWI_PKTID_PROBE; + if ((info->flags & IEEE80211_TX_CTL_AMPDU) && sta) { + u8 ba_size = IEEE80211_MIN_AMPDU_BUF; + + ba_size <<= sta->ht_cap.ampdu_factor; + ba_size = min_t(int, 63, ba_size - 1); + if (info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE) + ba_size = 0; + txwi->ack_ctl |= FIELD_PREP(MT_TXWI_ACK_CTL_BA_WINDOW, ba_size); + + txwi_flags |= MT_TXWI_FLAGS_AMPDU | + FIELD_PREP(MT_TXWI_FLAGS_MPDU_DENSITY, + sta->ht_cap.ampdu_density); + } + + if (ieee80211_is_probe_resp(hdr->frame_control) || + ieee80211_is_beacon(hdr->frame_control)) + txwi_flags |= MT_TXWI_FLAGS_TS; + + txwi->flags |= cpu_to_le16(txwi_flags); + txwi->len_ctl = cpu_to_le16(len); } EXPORT_SYMBOL_GPL(mt76x02_mac_write_txwi); -- 2.45.2