[dpdk-dev] [PATCH 1/3] net/netvsc: support receive without vlan strip

[Ferruh Yigit]

On 12/14/2018 1:26 AM, Stephen Hemminger wrote:
> In some cases, VLAN stripping is not desireable. If necessary
> re-insert stripped vlan tag.
> 
> Signed-off-by: Stephen Hemminger <sthemmin at microsoft.com>

<...>

> @@ -501,6 +501,14 @@ static void hn_rxpkt(struct hn_rx_queue *rxq, struct hn_rx_bufinfo *rxb,
>  	if (info->vlan_info != HN_NDIS_VLAN_INFO_INVALID) {
>  		m->vlan_tci = info->vlan_info;
>  		m->ol_flags |= PKT_RX_VLAN_STRIPPED | PKT_RX_VLAN;
> +
> +		/* NDIS always strips tag, put it back if necessary */
> +		if (!hv->vlan_strip && rte_vlan_insert(&m)) {

Should 'PKT_RX_VLAN_STRIPPED' flag removed when vlan inserted back?