diff options
| author |   Lorenzo Bianconi <lorenzo@kernel.org> | 2025-03-18 12:46:05 +0100 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2025-03-25 04:35:41 -0700 |
| commit | 07b2fbffaaea9474825fd5e08f81cd62b0378cf3 (patch) | |
| tree | e580aaf8dce3a4987aee88d8fe6a79e27ad30fad | |
| parent | net: tulip: avoid unused variable warning (diff) | |
| download | wireguard-linux-07b2fbffaaea9474825fd5e08f81cd62b0378cf3.tar.xz wireguard-linux-07b2fbffaaea9474825fd5e08f81cd62b0378cf3.zip | |
net: mvneta: Add metadata support for xdp mode
Set metadata size building the skb from xdp_buff in mvneta driver
mvneta sets xdp headroom to:
MVNETA_MH_SIZE + MVNETA_SKB_HEADROOM
where
MVNETA_MH_SIZE 2
MVNETA_SKB_HEADROOM max(NET_SKB_PAD, XDP_PACKET_HEADROOM)
so the headroom is large enough to contain xdp_frame and xdp metadata.
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-v2-1-b6075778f61f@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | drivers/net/ethernet/marvell/mvneta.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c index 44b18c573909..147571fdada3 100644 --- a/drivers/net/ethernet/marvell/mvneta.c +++ b/drivers/net/ethernet/marvell/mvneta.c @@ -2342,7 +2342,7 @@ mvneta_swbm_rx_frame(struct mvneta_port *pp, prefetch(data); xdp_buff_clear_frags_flag(xdp); xdp_prepare_buff(xdp, data, pp->rx_offset_correction + MVNETA_MH_SIZE, - data_len, false); + data_len, true); } static void @@ -2396,6 +2396,7 @@ mvneta_swbm_build_skb(struct mvneta_port *pp, struct page_pool *pool, struct xdp_buff *xdp, u32 desc_status) { struct skb_shared_info *sinfo = xdp_get_shared_info_from_buff(xdp); + u32 metasize = xdp->data - xdp->data_meta; struct sk_buff *skb; u8 num_frags; @@ -2410,6 +2411,8 @@ mvneta_swbm_build_skb(struct mvneta_port *pp, struct page_pool *pool, skb_reserve(skb, xdp->data - xdp->data_hard_start); skb_put(skb, xdp->data_end - xdp->data); + if (metasize) + skb_metadata_set(skb, metasize); skb->ip_summed = mvneta_rx_csum(pp, desc_status); if (unlikely(xdp_buff_has_frags(xdp))) |