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Date: Mon, 22 Jan 2018 13:51:09 +0100
From: Olivier Matz <olivier.matz@6wind.com>
To: Morten =?iso-8859-1?Q?Br=F8rup?= <mb@smartsharesystems.com>
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Subject: Re: [dpdk-dev] mbuf vlan_tci validity unclear
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Hi Morten,

On Wed, Jan 17, 2018 at 10:20:53PM +0100, Morten Brørup wrote:
> In rte_mbuf.h, the description of the PKT_RX_VLAN flag (lines 93-94) says that
> mbuf->vlan_tci contains the VLAN TCI if the flag is set; however, the
> description of the vlan_tci field (line 513) says that the
> PKT_RX_VLAN_STRIPPED flag must be set for it to be valid.
>
> Which one is it? And will someone please update the comments in rte_mbuf.h
> accordingly.

Thanks for spotting this, I will send a patch to fix it.

PKT_RX_VLAN means that mbuf->vlan_tci is valid.
And PKT_RX_VLAN_STRIPPED implies that PKT_RX_VLAN is set too.