[PATCH net-next 2/7] net: mvpp2: Add metadata support for xdp mode

[Lorenzo Bianconi <lorenzo@kernel.org>]

Set metadata size building the skb from xdp_buff in mvpp2 driver

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
 drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
index f166dc4e650372d66e248601a5c948819e1dcd79..54a235366a01bdba526a1956f27836bcdee210ae 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
@@ -3915,13 +3915,13 @@ static int mvpp2_rx(struct mvpp2_port *port, struct napi_struct *napi,
 
 	while (rx_done < rx_todo) {
 		struct mvpp2_rx_desc *rx_desc = mvpp2_rxq_next_desc_get(rxq);
+		u32 rx_status, timestamp, metasize = 0;
 		struct mvpp2_bm_pool *bm_pool;
 		struct page_pool *pp = NULL;
 		struct sk_buff *skb;
 		unsigned int frag_size;
 		dma_addr_t dma_addr;
 		phys_addr_t phys_addr;
-		u32 rx_status, timestamp;
 		int pool, rx_bytes, err, ret;
 		struct page *page;
 		void *data;
@@ -3983,7 +3983,7 @@ static int mvpp2_rx(struct mvpp2_port *port, struct napi_struct *napi,
 			xdp_init_buff(&xdp, PAGE_SIZE, xdp_rxq);
 			xdp_prepare_buff(&xdp, data,
 					 MVPP2_MH_SIZE + MVPP2_SKB_HEADROOM,
-					 rx_bytes, false);
+					 rx_bytes, true);
 
 			ret = mvpp2_run_xdp(port, xdp_prog, &xdp, pp, &ps);
 
@@ -3999,6 +3999,8 @@ static int mvpp2_rx(struct mvpp2_port *port, struct napi_struct *napi,
 				ps.rx_bytes += rx_bytes;
 				continue;
 			}
+
+			metasize = xdp.data - xdp.data_meta;
 		}
 
 		if (frag_size)
@@ -4038,6 +4040,8 @@ static int mvpp2_rx(struct mvpp2_port *port, struct napi_struct *napi,
 
 		skb_reserve(skb, MVPP2_MH_SIZE + MVPP2_SKB_HEADROOM);
 		skb_put(skb, rx_bytes);
+		if (metasize)
+			skb_metadata_set(skb, metasize);
 		skb->ip_summed = mvpp2_rx_csum(port, rx_status);
 		skb->protocol = eth_type_trans(skb, dev);
 

-- 
2.48.1