[PATCH net-next 3/7] net: netsec: Add metadata support for xdp mode

[Lorenzo Bianconi]

Set metadata size building the skb from xdp_buff in netsec driver

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

diff --git a/drivers/net/ethernet/socionext/netsec.c b/drivers/net/ethernet/socionext/netsec.c
index dc99821c6226fbaece65c8ade23899f610b44a9a..ee890de69ffe795dbdcc5331e36be86769f0d9a6 100644
--- a/drivers/net/ethernet/socionext/netsec.c
+++ b/drivers/net/ethernet/socionext/netsec.c
@@ -970,7 +970,7 @@ static int netsec_process_rx(struct netsec_priv *priv, int budget)
 		struct netsec_de *de = dring->vaddr + (DESC_SZ * idx);
 		struct netsec_desc *desc = &dring->desc[idx];
 		struct page *page = virt_to_page(desc->addr);
-		u32 xdp_result = NETSEC_XDP_PASS;
+		u32 metasize, xdp_result = NETSEC_XDP_PASS;
 		struct sk_buff *skb = NULL;
 		u16 pkt_len, desc_len;
 		dma_addr_t dma_handle;
@@ -1019,7 +1019,7 @@ static int netsec_process_rx(struct netsec_priv *priv, int budget)
 		prefetch(desc->addr);
 
 		xdp_prepare_buff(&xdp, desc->addr, NETSEC_RXBUF_HEADROOM,
-				 pkt_len, false);
+				 pkt_len, true);
 
 		if (xdp_prog) {
 			xdp_result = netsec_run_xdp(priv, xdp_prog, &xdp);
@@ -1048,6 +1048,9 @@ static int netsec_process_rx(struct netsec_priv *priv, 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->protocol = eth_type_trans(skb, priv->ndev);
 
 		if (priv->rx_cksum_offload_flag &&

-- 
2.48.1