[PATCH net-next 6/7] net: mana: Add metadata support for xdp mode
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: 2025-03-11 12:19:14
Also in:
bpf, linux-arm-kernel, linux-hyperv, linux-mediatek, linux-omap
Subsystem:
hyper-v/azure core and drivers, networking drivers, the rest · Maintainers:
"K. Y. Srinivasan", Haiyang Zhang, Wei Liu, Dexuan Cui, Long Li, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Set metadata size building the skb from xdp_buff in mana driver Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> --- drivers/net/ethernet/microsoft/mana/mana_bpf.c | 2 +- drivers/net/ethernet/microsoft/mana/mana_en.c | 4 ++++ 2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/microsoft/mana/mana_bpf.c b/drivers/net/ethernet/microsoft/mana/mana_bpf.c
index 23b1521c0df96e7fd595daad8b49fa9be935090c..d30721d4516fc60cf8883f2b35cc561559082ccc 100644
--- a/drivers/net/ethernet/microsoft/mana/mana_bpf.c
+++ b/drivers/net/ethernet/microsoft/mana/mana_bpf.c@@ -91,7 +91,7 @@ u32 mana_run_xdp(struct net_device *ndev, struct mana_rxq *rxq, goto out; xdp_init_buff(xdp, PAGE_SIZE, &rxq->xdp_rxq); - xdp_prepare_buff(xdp, buf_va, XDP_PACKET_HEADROOM, pkt_len, false); + xdp_prepare_buff(xdp, buf_va, XDP_PACKET_HEADROOM, pkt_len, true); act = bpf_prog_run_xdp(prog, xdp);
diff --git a/drivers/net/ethernet/microsoft/mana/mana_en.c b/drivers/net/ethernet/microsoft/mana/mana_en.c
index 2d826077d38cdac7ebe9c355cf883b0d727eeca2..a3986fc47b819dae1f8a1d62ebe1ff051b144236 100644
--- a/drivers/net/ethernet/microsoft/mana/mana_en.c
+++ b/drivers/net/ethernet/microsoft/mana/mana_en.c@@ -1559,8 +1559,12 @@ static struct sk_buff *mana_build_skb(struct mana_rxq *rxq, void *buf_va, return NULL; if (xdp->data_hard_start) { + u32 metasize = xdp->data - xdp->data_meta; + skb_reserve(skb, xdp->data - xdp->data_hard_start); skb_put(skb, xdp->data_end - xdp->data); + if (metasize) + skb_metadata_set(skb, metasize); return skb; }
--
2.48.1