netdev - Re: [PATCH net-next v2] mlx4/en_netdev: allow offloading VXLAN over VLAN

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Date:   Sat, 27 Jul 2019 14:22:49 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     dcaratti@...hat.com
Cc:     pabeni@...hat.com, marcelo.leitner@...il.com, saeedm@...lanox.com,
        tariqt@...lanox.com, netdev@...r.kernel.org
Subject: Re: [PATCH net-next v2] mlx4/en_netdev: allow offloading VXLAN
 over VLAN

From: Davide Caratti <dcaratti@...hat.com>
Date: Fri, 26 Jul 2019 20:18:12 +0200

> ConnectX-3 Pro can offload transmission of VLAN packets with VXLAN inside:
> enable tunnel offloads in dev->vlan_features, like it's done with other
> NIC drivers (e.g. be2net and ixgbe).
> 
> It's no more necessary to change dev->hw_enc_features when VXLAN are added
> or removed, since .ndo_features_check() already checks for VXLAN packet
> where the UDP destination port matches the configured value. Just set
> dev->hw_enc_features when the NIC is initialized, so that overlying VLAN
> can correctly inherit the tunnel offload capabilities.
> 
> Changes since v1:
> - avoid flipping hw_enc_features, instead of calling netdev notifiers,
>   thanks to Saeed Mahameed
> - squash two patches into a single one
> 
> CC: Paolo Abeni <pabeni@...hat.com>
> CC: Marcelo Ricardo Leitner <marcelo.leitner@...il.com>
> Signed-off-by: Davide Caratti <dcaratti@...hat.com>

Applied.