[PATCH net-next 5/7] net: ethernet: mediatek: Add metadata support for xdp mode

[Lorenzo Bianconi]

Set metadata size building the skb from xdp_buff in mediatek driver

Signed-off-by: Lorenzo Bianconi <lorenzo at kernel.org>
---
 drivers/net/ethernet/mediatek/mtk_eth_soc.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
index 922330b3f4d70421276ecd3f4ab175b3ae263f71..43197b28b3e745319e974c6022a6a51b6953f60a 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -2122,7 +2122,7 @@ static int mtk_poll_rx(struct napi_struct *napi, int budget,
 		if (ring->page_pool) {
 			struct page *page = virt_to_head_page(data);
 			struct xdp_buff xdp;
-			u32 ret;
+			u32 ret, metasize;
 
 			new_data = mtk_page_pool_get_buff(ring->page_pool,
 							  &dma_addr,
@@ -2138,7 +2138,7 @@ static int mtk_poll_rx(struct napi_struct *napi, int budget,
 
 			xdp_init_buff(&xdp, PAGE_SIZE, &ring->xdp_q);
 			xdp_prepare_buff(&xdp, data, MTK_PP_HEADROOM, pktlen,
-					 false);
+					 true);
 			xdp_buff_clear_frags_flag(&xdp);
 
 			ret = mtk_xdp_run(eth, ring, &xdp, netdev);
@@ -2158,6 +2158,9 @@ static int mtk_poll_rx(struct napi_struct *napi, int budget,
 
 			skb_reserve(skb, xdp.data - xdp.data_hard_start);
 			skb_put(skb, xdp.data_end - xdp.data);
+			metasize = xdp.data - xdp.data_meta;
+			if (metasize)
+				skb_metadata_set(skb, metasize);
 			skb_mark_for_recycle(skb);
 		} else {
 			if (ring->frag_size <= PAGE_SIZE)

-- 
2.48.1