Commit 94244d2e authored by Felix Fietkau's avatar Felix Fietkau
Browse files

mt76: mt7915: 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: default avatarFelix Fietkau <nbd@nbd.name>
parent cc4b3c13

drivers/net/wireless/mediatek/mt76/mt7915/init.c

+1 −0
Original line number Diff line number Diff line
@@ -93,6 +93,7 @@ mt7915_init_wiphy(struct ieee80211_hw *hw) 
	hw->queues = 4;

	hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF;

	hw->max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF;

	hw->netdev_features = NETIF_F_RXCSUM;



	phy->slottime = 9;

drivers/net/wireless/mediatek/mt76/mt7915/mac.c

+5 −0
Original line number Diff line number Diff line
@@ -317,10 +317,12 @@ int mt7915_mac_fill_rx(struct mt7915_dev *dev, struct sk_buff *skb) 
	__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]);

	u32 csum_mask = MT_RXD0_NORMAL_IP_SUM | MT_RXD0_NORMAL_UDP_TCP_SUM;

	bool unicast, insert_ccmp_hdr = false;

	u8 remove_pad, amsdu_info;

	int i, idx;
@@ -366,6 +368,9 @@ int mt7915_mac_fill_rx(struct mt7915_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;