[PATCH net-next 6/7] net: mana: Add metadata support for xdp mode

[Lorenzo Bianconi]

Set metadata size building the skb from xdp_buff in mana driver

Signed-off-by: Lorenzo Bianconi <lore...@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