Hello,
On Sat, Nov 23, 2024 at 8:37 PM caobinnjupt <caobin_nj...@163.com> wrote:
>
> Description:
>
> if packet contain vlan flag we will push vlan length in the mbuf of
> dp_packet;
> if packet pop vlan flag we will pop vlan legth in the mbufof dp_packet;
>
> Author: caobinnjupt <caobin_nj...@163.com>
> Signed-off-by: caobinnjupt <caobin_nj...@163.com>
Could you please describe the setup and the issue you hit?
> ---
> lib/dp-packet.h | 24 ++++++++++++++++++++++++
> lib/packets.c | 4 ++++
> 2 files changed, 28 insertions(+)
>
> diff --git a/lib/dp-packet.h b/lib/dp-packet.h
> index 4afbbe722..184bfb920 100644
> --- a/lib/dp-packet.h
> +++ b/lib/dp-packet.h
> @@ -1064,6 +1064,30 @@ dp_packet_reset_offload(struct dp_packet *p)
> *dp_packet_ol_flags_ptr(p) &= ~DP_PACKET_OL_SUPPORTED_MASK;
> }
>
> +#ifdef DPDK_NETDEV
> +static inline void
> +dp_packet_push_vlan_update_offload(struct dp_packet *p)
> +{
> + if (p->mbuf.ol_flags & PKT_TX_L4_MASK && p->mbuf.l2_len ==
> ETH_HEADER_LEN) {
> + p->mbuf.l2_len += VLAN_HEADER_LEN;
> + }
> +}
The mbuf l2_len is supposed to be filled by OVS before calling DPDK
drivers (see netdev_dpdk_prep_hwol_packet()).
Are you perhaps hitting an issue with vhost-user ports?
--
David Marchand
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