netdev - Re: esp-hw-offload support for VF of NVIDIA Mellanox ConnectX-6 Ethernet Adapter Cards

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Message-ID: <026c789b7d3b6f81698803cc9ef86c3467d878d5.camel@kernel.org>
Date:   Mon, 29 Mar 2021 14:05:54 -0700
From:   Saeed Mahameed <saeed@...nel.org>
To:     高钧浩 <gaojunhao0504@...il.com>,
        borisp@...dia.com, Huy Nguyen <huyn@...dia.com>,
        Raed Salem <raeds@...dia.com>
Cc:     netdev@...r.kernel.org, seven.wen@...oud.cn, junhao.gao@...oud.cn
Subject: Re: esp-hw-offload support for VF of NVIDIA Mellanox ConnectX-6
 Ethernet Adapter Cards

On Mon, 2021-03-29 at 16:42 +0800, 高钧浩 wrote:
> Hi Boris,Saeed
> 
>      I'm enabling esp-hw-offload for VF of NVIDIA Mellanox ConnectX-6
> Ethernet Adapter Cards, but it doesn't work.
>      Before I created VF, the esp-hw-offload function of CX-6 is on,
> after I created VF, the esp-hw-offload function of VF doesn't inherit
> the esp-hw-offload function of CX-6.
>      Enable esp-hw-offload could refer to
> https://docs.mellanox.com/display/OFEDv522200/IPsec+Crypto+Offload.
> 
>      Create VF steps as follows:
>      modprobe mlx5_core
>      echo 2 > /sys/class/net/net2/device/sriov_numvfs
>      # lspci to get pci bdf number(example:0000:07:00.0)
>      lspci -nn | grep Mellanox
>      echo 0000:07:00.2 > /sys/bus/pci/drivers/mlx5_core/unbind
>      echo 0000:07:00.3 > /sys/bus/pci/drivers/mlx5_core/unbind
>      /etc/init.d/mst start
>      mcra /dev/mst/mt4119_pciconf0  0x31500.17  0
>      devlink dev eswitch set pci/0000:07:00.0  mode switchdev encap
> enable
>      echo 0000:07:00.2 > /sys/bus/pci/drivers/mlx5_core/bind
>      echo 0000:07:00.3 > /sys/bus/pci/drivers/mlx5_core/bind
> 
>      Then query the esp-hw-offload of VF:
>      #firstly need to find the created VF(has the properties:
>      bus-info: 0000:07:00.2, driver: mlx5_core)
>      ethtool -i eth0 | grep esp-hw-offload
>      esp-hw-offload: off [fixed]
> 

Huy, Raed, Do you know if we support IPsec inline offload on VFs ?