Commit 74fb1346 authored by Lorenzo Bianconi's avatar Lorenzo Bianconi Committed by Jakub Kicinski
Browse files

net: ethernet: mediatek: Add metadata support for xdp mode 



Set metadata size building the skb from xdp_buff in mediatek driver.
mtk_eth_soc driver sets xdp headroom to XDP_PACKET_HEADROOM so the
headroom is large enough to contain xdp_frame and xdp metadata.
Please note this patch is just compiled tested.

Reviewed-by: default avatarMichal Kubiak <michal.kubiak@intel.com>
Signed-off-by: default avatarLorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20250318-mvneta-xdp-meta-v2-5-b6075778f61f@kernel.org


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 33bfff8f

drivers/net/ethernet/mediatek/mtk_eth_soc.c

+5 −2
Original line number Diff line number Diff line
@@ -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)