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

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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: Michal Kubiak <michal.kubiak@intel.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20250318-mvneta-xdp-meta-v2-5-b6075778f61f@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Lorenzo Bianconi
2025-03-18 12:46:09 +01:00
committed by Jakub Kicinski
parent 33bfff8fc8
commit 74fb1346bc
1 changed files with 5 additions and 2 deletions
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7
drivers/net/ethernet/mediatek/mtk_eth_soc.c
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@@ -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)