Re: [dpdk-dev] [PATCH] net/mlx5: add wire vport hint

[Raslan Darawsheh <rasland@nvidia.com>]

Hi,

> -----Original Message-----
> From: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
> Sent: Friday, November 13, 2020 5:33 PM
> To: dev@dpdk.org
> Cc: Raslan Darawsheh <rasland@nvidia.com>; Matan Azrad
> <matan@nvidia.com>
> Subject: [PATCH] net/mlx5: add wire vport hint
> 
> The kernel can use two approaches to distinguish the E-Switch
> source vport in the packet metadata - either with dedicated
> source_port field or register C0. To eliminate the extra source
> vport matching in the hardware the source_port field can be
> set to specific values (0xFFFF) for the wire source port.
> 
> This match can be applied to recognize wire port only in FDB
> domain. Missing the register C0 match in the NIC Rx domain causes
> incorrect representor steering within shared IB device ports
> and must be always specified (if kernel uses this approach).
> 
> Signed-off-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
> ---
>  drivers/net/mlx5/mlx5_flow_dv.c | 39
> +++++++++++++++++++++++++++++----------
>  1 file changed, 29 insertions(+), 10 deletions(-)

Patch applied to next-net-mlx,

Kindest regards,
Raslan Darawsheh