From 0e75732764e86a7741d7807b4408cd02cbaf1e0c Mon Sep 17 00:00:00 2001 From: Lorenzo Bianconi Date: Thu, 6 May 2021 20:13:35 +0200 Subject: [PATCH] mt76: mt7921: enable rx csum offload As already done for mt7615 and mt7915, enable hw rx checksum offload. Signed-off-by: Lorenzo Bianconi Signed-off-by: Felix Fietkau --- drivers/net/wireless/mediatek/mt76/mt7921/init.c | 1 + drivers/net/wireless/mediatek/mt76/mt7921/mac.c | 10 +++++++--- 2 files changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/init.c b/drivers/net/wireless/mediatek/mt76/mt7921/init.c index d5ad92a440c3..b899b82bbf04 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/init.c @@ -50,6 +50,7 @@ mt7921_init_wiphy(struct ieee80211_hw *hw) hw->queues = 4; hw->max_rx_aggregation_subframes = 64; hw->max_tx_aggregation_subframes = 128; + hw->netdev_features = NETIF_F_RXCSUM; hw->radiotap_timestamp.units_pos = IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US; diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c index 74974f689462..44b8918db95b 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c @@ -308,22 +308,23 @@ 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) { + u32 csum_mask = MT_RXD0_NORMAL_IP_SUM | MT_RXD0_NORMAL_UDP_TCP_SUM; 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; + __le32 *rxv = NULL, *rxd = (__le32 *)skb->data; struct mt76_phy *mphy = &dev->mt76.phy; struct mt7921_phy *phy = &dev->phy; struct ieee80211_supported_band *sband; struct ieee80211_hdr *hdr; - __le32 *rxd = (__le32 *)skb->data; - __le32 *rxv = NULL; - u32 mode = 0; + u32 rxd0 = le32_to_cpu(rxd[0]); u32 rxd1 = le32_to_cpu(rxd[1]); u32 rxd2 = le32_to_cpu(rxd[2]); u32 rxd3 = le32_to_cpu(rxd[3]); u32 rxd4 = le32_to_cpu(rxd[4]); u16 seq_ctrl = 0; __le16 fc = 0; + u32 mode = 0; int i, idx; memset(status, 0, sizeof(*status)); @@ -363,6 +364,9 @@ int mt7921_mac_fill_rx(struct mt7921_dev *dev, struct sk_buff *skb) if (!sband->channels) return -EINVAL; + if ((rxd0 & csum_mask) == csum_mask) + skb->ip_summed = CHECKSUM_UNNECESSARY; + if (rxd1 & MT_RXD1_NORMAL_FCS_ERR) status->flag |= RX_FLAG_FAILED_FCS_CRC; -- 2.11.0