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net: ethernet: mtk_eth_soc: set PPE flow hash as skb hash if present 

This improves GRO performance

Signed-off-by: Felix Fietkau <nbd@nbd.name>
[Ilya: Use MTK_RXD4_FOE_ENTRY instead of GENMASK(13, 0)]
Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Felix Fietkau 2021-04-22 22:21:07 -07:00 committed by David S. Miller
parent db2c7b353d
commit fa817272c3
1 changed files with 8 additions and 0 deletions
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8
drivers/net/ethernet/mediatek/mtk_eth_soc.c
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@ -19,6 +19,7 @@
#include <linux/interrupt.h>
#include <linux/pinctrl/devinfo.h>
#include <linux/phylink.h>
#include <linux/jhash.h>
#include <net/dsa.h>
#include "mtk_eth_soc.h"
@ -1250,6 +1251,7 @@ static int mtk_poll_rx(struct napi_struct *napi, int budget,
struct net_device *netdev;
unsigned int pktlen;
dma_addr_t dma_addr;
u32 hash;
int mac;
ring = mtk_get_rx_ring(eth);
@ -1319,6 +1321,12 @@ static int mtk_poll_rx(struct napi_struct *napi, int budget,
skb->protocol = eth_type_trans(skb, netdev);
bytes += pktlen;
hash = trxd.rxd4 & MTK_RXD4_FOE_ENTRY;
if (hash != MTK_RXD4_FOE_ENTRY) {
hash = jhash_1word(hash, 0);
skb_set_hash(skb, hash, PKT_HASH_TYPE_L4);
}
if (netdev->features & NETIF_F_HW_VLAN_CTAG_RX &&
(trxd.rxd2 & RX_DMA_VTAG))
__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q),