[dpdk-dev] [PATCH v4 03/11] net/mlx5: support L3 VXLAN flow

[Xueming(Steven) Li]

> -----Original Message-----
> From: Nélio Laranjeiro <nelio.laranjeiro at 6wind.com>
> Sent: Wednesday, April 18, 2018 2:49 PM
> To: Xueming(Steven) Li <xuemingl at mellanox.com>
> Cc: Shahaf Shuler <shahafs at mellanox.com>; dev at dpdk.org
> Subject: Re: [PATCH v4 03/11] net/mlx5: support L3 VXLAN flow
> 
> On Tue, Apr 17, 2018 at 11:14:28PM +0800, Xueming Li wrote:
> > This patch support L3 VXLAN, no inner L2 header comparing to standard
> > VXLAN protocol. L3 VXLAN using specific overlay UDP destination port
> > to discriminate against standard VXLAN, FW has to be configured to
> > support
> > it:
> >   sudo mlxconfig -d <device> -y s IP_OVER_VXLAN_EN=1
> >   sudo mlxconfig -d <device> -y s IP_OVER_VXLAN_PORT=<port>
> >
> > Signed-off-by: Xueming Li <xuemingl at mellanox.com>
> > ---
> >  drivers/net/mlx5/mlx5_flow.c | 4 +++-
> >  1 file changed, 3 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/net/mlx5/mlx5_flow.c
> > b/drivers/net/mlx5/mlx5_flow.c index 771d5f14d..d7a921dff 100644
> > --- a/drivers/net/mlx5/mlx5_flow.c
> > +++ b/drivers/net/mlx5/mlx5_flow.c
> > @@ -413,7 +413,9 @@ static const struct mlx5_flow_items mlx5_flow_items[] = {
> >  		.dst_sz = sizeof(struct ibv_flow_spec_tunnel),
> >  	},
> >  	[RTE_FLOW_ITEM_TYPE_VXLAN] = {
> > -		.items = ITEMS(RTE_FLOW_ITEM_TYPE_ETH),
> > +		.items = ITEMS(RTE_FLOW_ITEM_TYPE_ETH,
> > +			       RTE_FLOW_ITEM_TYPE_IPV4, /* For L3 VXLAN. */
> > +			       RTE_FLOW_ITEM_TYPE_IPV6), /* For L3 VXLAN. */
> >  		.actions = valid_actions,
> >  		.mask = &(const struct rte_flow_item_vxlan){
> >  			.vni = "\xff\xff\xff",
> > --
> > 2.13.3
> 
> Such support must be under device parameter has it depends on the configuration of the firmware.  If
> the firmware is not correctly configured the PMD must refuse such rule.
> 
> Thanks,
> 
> --
> Nélio Laranjeiro
> 6WIND

Are you suggesting Verbs parameter? I'm afraid we can't have it in short time, need new patch in later 
release when Verbs ready.