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

Nélio Laranjeiro nelio.laranjeiro at 6wind.com
Wed Apr 18 17:08:58 CEST 2018


On Wed, Apr 18, 2018 at 02:43:30PM +0000, Xueming(Steven) Li wrote:
> 
> 
> > -----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.

Take a look at [1], this is what I mean.

Regards,

[1] https://dpdk.org/doc/guides/nics/mlx5.html#run-time-configuration

-- 
Nélio Laranjeiro
6WIND


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