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authorLorenzo Bianconi <lorenzo@kernel.org>2022-08-23 15:24:07 +0300
committerPaolo Abeni <pabeni@redhat.com>2022-08-25 14:17:01 +0300
commit0cf731f9ebb5bf6f252055bebf4463a5c0bd490b (patch)
tree0de89839b3fbcda207323823238015f79fcfa8d9 /drivers
parent24c7a64ea4764d70e4ac9b0a60ecd9b03c68435e (diff)
downloadlinux-0cf731f9ebb5bf6f252055bebf4463a5c0bd490b.tar.xz
net: ethernet: mtk_eth_soc: fix hw hash reporting for MTK_NETSYS_V2
Properly report hw rx hash for mt7986 chipset accroding to the new dma descriptor layout. Fixes: 197c9e9b17b11 ("net: ethernet: mtk_eth_soc: introduce support for mt7986 chipset") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://lore.kernel.org/r/091394ea4e705fbb35f828011d98d0ba33808f69.1661257293.git.lorenzo@kernel.org Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ethernet/mediatek/mtk_eth_soc.c22
-rw-r--r--drivers/net/ethernet/mediatek/mtk_eth_soc.h5
2 files changed, 17 insertions, 10 deletions
diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
index 8aff4c0c28bd..5ace4609de47 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -1891,10 +1891,19 @@ static int mtk_poll_rx(struct napi_struct *napi, int budget,
skb->dev = netdev;
bytes += skb->len;
- if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2))
+ if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2)) {
+ hash = trxd.rxd5 & MTK_RXD5_FOE_ENTRY;
+ if (hash != MTK_RXD5_FOE_ENTRY)
+ skb_set_hash(skb, jhash_1word(hash, 0),
+ PKT_HASH_TYPE_L4);
rxdcsum = &trxd.rxd3;
- else
+ } else {
+ hash = trxd.rxd4 & MTK_RXD4_FOE_ENTRY;
+ if (hash != MTK_RXD4_FOE_ENTRY)
+ skb_set_hash(skb, jhash_1word(hash, 0),
+ PKT_HASH_TYPE_L4);
rxdcsum = &trxd.rxd4;
+ }
if (*rxdcsum & eth->soc->txrx.rx_dma_l4_valid)
skb->ip_summed = CHECKSUM_UNNECESSARY;
@@ -1902,16 +1911,9 @@ static int mtk_poll_rx(struct napi_struct *napi, int budget,
skb_checksum_none_assert(skb);
skb->protocol = eth_type_trans(skb, netdev);
- 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);
- }
-
reason = FIELD_GET(MTK_RXD4_PPE_CPU_REASON, trxd.rxd4);
if (reason == MTK_PPE_CPU_REASON_HIT_UNBIND_RATE_REACHED)
- mtk_ppe_check_skb(eth->ppe, skb,
- trxd.rxd4 & MTK_RXD4_FOE_ENTRY);
+ mtk_ppe_check_skb(eth->ppe, skb, hash);
if (netdev->features & NETIF_F_HW_VLAN_CTAG_RX) {
if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2)) {
diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.h b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
index 7405c97cda66..ecf85e9ed824 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
@@ -314,6 +314,11 @@
#define RX_DMA_L4_VALID_PDMA BIT(30) /* when PDMA is used */
#define RX_DMA_SPECIAL_TAG BIT(22)
+/* PDMA descriptor rxd5 */
+#define MTK_RXD5_FOE_ENTRY GENMASK(14, 0)
+#define MTK_RXD5_PPE_CPU_REASON GENMASK(22, 18)
+#define MTK_RXD5_SRC_PORT GENMASK(29, 26)
+
#define RX_DMA_GET_SPORT(x) (((x) >> 19) & 0xf)
#define RX_DMA_GET_SPORT_V2(x) (((x) >> 26) & 0x7)