diff options
| author | Lorenzo Bianconi <lorenzo@kernel.org> | 2025-03-18 12:46:08 +0100 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-03-25 04:35:42 -0700 |
| commit | 33bfff8fc8ba3833440228b93e36b9d0781e1b51 (patch) | |
| tree | 4908f3f5a612516b2a85914ad964ede2911fb460 | |
| parent | a5fec3c881420249350be31b7ec99d4aac069b40 (diff) | |
net: octeontx2: Add metadata support for xdp mode
Set metadata size building the skb from xdp_buff in octeontx2 driver.
octeontx2 driver sets xdp headroom to OTX2_HEAD_ROOM
OTX2_HEAD_ROOM OTX2_ALIGN
OTX2_ALIGN 128
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-v2-4-b6075778f61f@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c index 6bc5ce5a9f61..af8cabe828d0 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c @@ -41,7 +41,7 @@ static bool otx2_xdp_rcv_pkt_handler(struct otx2_nic *pfvf, struct bpf_prog *prog, struct nix_cqe_rx_s *cqe, struct otx2_cq_queue *cq, - bool *need_xdp_flush); + u32 *metasize, bool *need_xdp_flush); static void otx2_sq_set_sqe_base(struct otx2_snd_queue *sq, struct sk_buff *skb) @@ -336,6 +336,7 @@ static void otx2_rcv_pkt_handler(struct otx2_nic *pfvf, struct nix_rx_sg_s *sg = &cqe->sg; struct sk_buff *skb = NULL; void *end, *start; + u32 metasize = 0; u64 *seg_addr; u16 *seg_size; int seg; @@ -346,7 +347,8 @@ static void otx2_rcv_pkt_handler(struct otx2_nic *pfvf, } if (pfvf->xdp_prog) - if (otx2_xdp_rcv_pkt_handler(pfvf, pfvf->xdp_prog, cqe, cq, need_xdp_flush)) + if (otx2_xdp_rcv_pkt_handler(pfvf, pfvf->xdp_prog, cqe, cq, + &metasize, need_xdp_flush)) return; skb = napi_get_frags(napi); @@ -378,6 +380,8 @@ static void otx2_rcv_pkt_handler(struct otx2_nic *pfvf, skb->mark = parse->match_id; skb_mark_for_recycle(skb); + if (metasize) + skb_metadata_set(skb, metasize); napi_gro_frags(napi); } @@ -1482,7 +1486,7 @@ static bool otx2_xdp_rcv_pkt_handler(struct otx2_nic *pfvf, struct bpf_prog *prog, struct nix_cqe_rx_s *cqe, struct otx2_cq_queue *cq, - bool *need_xdp_flush) + u32 *metasize, bool *need_xdp_flush) { struct xdp_buff xdp, *xsk_buff = NULL; unsigned char *hard_start; @@ -1514,13 +1518,14 @@ static bool otx2_xdp_rcv_pkt_handler(struct otx2_nic *pfvf, hard_start = (unsigned char *)phys_to_virt(pa); xdp_prepare_buff(&xdp, hard_start, OTX2_HEAD_ROOM, - cqe->sg.seg_size, false); + cqe->sg.seg_size, true); act = bpf_prog_run_xdp(prog, &xdp); handle_xdp_verdict: switch (act) { case XDP_PASS: + *metasize = xdp.data - xdp.data_meta; break; case XDP_TX: qidx += pfvf->hw.tx_queues; |