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mt76: mt7615: add rx checksum offload support 

Set skb->ip_summed to CHECKSUM_UNNECESSARY if the hardware has validated
the IP and TCP/UDP checksum

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Ryder Lee 2021-02-18 09:34:39 +08:00 committed by Felix Fietkau
parent e78d73e01d
commit 2122dfbfd0
2 changed files with 5 additions and 0 deletions
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1
drivers/net/wireless/mediatek/mt76/mt7615/init.c
View File

@ -329,6 +329,7 @@ mt7615_init_wiphy(struct ieee80211_hw *hw)
hw->max_rates = 3;
hw->max_report_rates = 7;
hw->max_rate_tries = 11;
hw->netdev_features = NETIF_F_RXCSUM;
phy->slottime = 9;

4
drivers/net/wireless/mediatek/mt76/mt7615/mac.c
View File

@ -234,6 +234,7 @@ static int mt7615_mac_fill_rx(struct mt7615_dev *dev, struct sk_buff *skb)
u32 rxd0 = le32_to_cpu(rxd[0]);
u32 rxd1 = le32_to_cpu(rxd[1]);
u32 rxd2 = le32_to_cpu(rxd[2]);
u32 csum_mask = MT_RXD0_NORMAL_IP_SUM | MT_RXD0_NORMAL_UDP_TCP_SUM;
__le32 rxd12 = rxd[12];
bool unicast, remove_pad, insert_ccmp_hdr = false;
int phy_idx;
@ -271,6 +272,9 @@ static int mt7615_mac_fill_rx(struct mt7615_dev *dev, struct sk_buff *skb)
spin_unlock_bh(&dev->sta_poll_lock);
}
if ((rxd0 & csum_mask) == csum_mask)
skb->ip_summed = CHECKSUM_UNNECESSARY;
if (rxd2 & MT_RXD2_NORMAL_FCS_ERR)
status->flag |= RX_FLAG_FAILED_FCS_CRC;