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authorFelix Fietkau <nbd@nbd.name>2019-03-23 14:29:00 +0100
committerFelix Fietkau <nbd@nbd.name>2019-04-03 10:40:09 +0200
commitc9262a96d1fc0a7fb1ba0806acb3b7aae00b1ecf (patch)
tree4aa71736956430fc63331ec1fed9c0ff5860caf4
parent701b8d0050b4d12907ee751fcd4ed6496b9f10fc (diff)
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ramips: implement vlan rx offload on MT7621
Avoids the overhead of software VLAN untagging in the network stack Signed-off-by: Felix Fietkau <nbd@nbd.name>
-rw-r--r--target/linux/ramips/files-4.14/drivers/net/ethernet/mediatek/mtk_eth_soc.c9
-rw-r--r--target/linux/ramips/files-4.14/drivers/net/ethernet/mediatek/mtk_eth_soc.h1
-rw-r--r--target/linux/ramips/files-4.14/drivers/net/ethernet/mediatek/soc_mt7621.c5
3 files changed, 11 insertions, 4 deletions
diff --git a/target/linux/ramips/files-4.14/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/target/linux/ramips/files-4.14/drivers/net/ethernet/mediatek/mtk_eth_soc.c
index e0bc0ab818..10d9fd7a3e 100644
--- a/target/linux/ramips/files-4.14/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/target/linux/ramips/files-4.14/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -933,6 +933,11 @@ static int fe_poll_rx(struct napi_struct *napi, int budget,
skb_checksum_none_assert(skb);
skb->protocol = eth_type_trans(skb, netdev);
+ if (netdev->features & NETIF_F_HW_VLAN_CTAG_RX &&
+ RX_DMA_VID(trxd.rxd3))
+ __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q),
+ RX_DMA_VID(trxd.rxd3));
+
#ifdef CONFIG_NET_MEDIATEK_OFFLOAD
if (mtk_offload_check_rx(priv, skb, trxd.rxd4) == 0) {
#endif
@@ -1585,7 +1590,9 @@ static int fe_probe(struct platform_device *pdev)
if (soc->init_data)
soc->init_data(soc, netdev);
- netdev->vlan_features = netdev->hw_features & ~NETIF_F_HW_VLAN_CTAG_TX;
+ netdev->vlan_features = netdev->hw_features &
+ ~(NETIF_F_HW_VLAN_CTAG_TX |
+ NETIF_F_HW_VLAN_CTAG_RX);
netdev->features |= netdev->hw_features;
if (IS_ENABLED(CONFIG_SOC_MT7621))
diff --git a/target/linux/ramips/files-4.14/drivers/net/ethernet/mediatek/mtk_eth_soc.h b/target/linux/ramips/files-4.14/drivers/net/ethernet/mediatek/mtk_eth_soc.h
index c42126116f..2f6fe1724c 100644
--- a/target/linux/ramips/files-4.14/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+++ b/target/linux/ramips/files-4.14/drivers/net/ethernet/mediatek/mtk_eth_soc.h
@@ -406,7 +406,6 @@ struct fe_soc_data {
#define FE_FLAG_JUMBO_FRAME BIT(2)
#define FE_FLAG_RX_2B_OFFSET BIT(3)
#define FE_FLAG_RX_SG_DMA BIT(4)
-#define FE_FLAG_RX_VLAN_CTAG BIT(5)
#define FE_FLAG_NAPI_WEIGHT BIT(6)
#define FE_FLAG_CALIBRATE_CLK BIT(7)
#define FE_FLAG_HAS_SWITCH BIT(8)
diff --git a/target/linux/ramips/files-4.14/drivers/net/ethernet/mediatek/soc_mt7621.c b/target/linux/ramips/files-4.14/drivers/net/ethernet/mediatek/soc_mt7621.c
index 392e0ea2e5..26a198fa2b 100644
--- a/target/linux/ramips/files-4.14/drivers/net/ethernet/mediatek/soc_mt7621.c
+++ b/target/linux/ramips/files-4.14/drivers/net/ethernet/mediatek/soc_mt7621.c
@@ -122,7 +122,7 @@ static int mt7621_fwd_config(struct fe_priv *priv)
/* mt7621 doesn't have txcsum config */
mt7621_rxcsum_config((dev->features & NETIF_F_RXCSUM));
- mt7621_rxvlan_config(priv->flags & FE_FLAG_RX_VLAN_CTAG);
+ mt7621_rxvlan_config(dev->features & NETIF_F_HW_VLAN_CTAG_RX);
return 0;
}
@@ -142,7 +142,8 @@ static void mt7621_init_data(struct fe_soc_data *data,
FE_FLAG_HAS_SWITCH | FE_FLAG_JUMBO_FRAME;
netdev->hw_features = NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
- NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_SG | NETIF_F_TSO |
+ NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX |
+ NETIF_F_SG | NETIF_F_TSO |
NETIF_F_TSO6 | NETIF_F_IPV6_CSUM |
NETIF_F_TSO_MANGLEID;
}