Re: [PATCH linux-next 0/9] vdpa: Enable user to set mac address,

["Michael S. Tsirkin" <mst@redhat.com>]

On Wed, Feb 24, 2021 at 08:18:35AM +0200, Parav Pandit wrote:
> Currently user cannot set the mac address and mtu of the vdpa device.
> This patchset enables users to set the mac address and mtu of the vdpa
> device once the device is created.
> If a vendor driver supports such configuration user can set it otherwise
> user gets unsupported error.
> 
> vdpa mac address and mtu are device configuration layout fields.
> To keep interface generic enough for multiple types of vdpa devices, mac
> address and mtu setting is implemented as configuration layout config
> knobs.
> This enables to use similar config layout for other virtio devices.
> 
> An example of query & set of config layout fields for vdpa_sim_net
> driver:
> 
> Configuration layout fields are set after device is created.
> This enables user to change such fields at later point without destroying and
> recreating the device for new config.
> 
> $ vdpa mgmtdev show
> vdpasim_net:
>   supported_classes net
> 
> Add the device:
> $ vdpa dev add name bar mgmtdev vdpasim_net
> 
> Configure mac address and mtu:
> $ vdpa dev config set bar mac 00:11:22:33:44:55 mtu 9000
> 
> In above command only mac address or only mtu can also be set.
> 
> View the config after setting:
> $ vdpa dev config show
> bar: mac 00:11:22:33:44:55 link up link_announce false mtu 9000 speed 0 duplex 0
> 
> Patch summary:
> Patch-1 uses read only features bit to detect endianness
> Patch-2 implements new config layout query command
> Patch-3 implements callback for setting vdpa net config fields
> Patch-4 extends vdpa_sim_net driver to implement mac, mtu setting
> Patch-5 removed redundant get_config callback
> Patch-6 mlx5 vdpa driver migrates to user created vdpa device
> Patch-7 mlx5 vdpa driver uses random mac address when not configured
> Patch-8 mlx5 vdpa driver supports user provided mac config
> Patch-9 mlx5 vdpa driver uses user provided mac during rx flow steering

which tree is this for? does not seem to apply to linux-next branch of
vhost ...

> Eli Cohen (4):
>   vdpa/mlx5: Enable user to add/delete vdpa device
>   vdpa/mlx5: Provide device generated random MAC address
>   vdpa/mlx5: Support configuration of MAC
>   vdpa/mlx5: Forward only packets with allowed MAC address
> 
> Parav Pandit (5):
>   vdpa_sim: Consider read only supported features instead of current
>   vdpa: Introduce query of device config layout
>   vdpa: Enable user to set mac and mtu of vdpa device
>   vdpa_sim_net: Enable user to set mac address and mtu
>   vdpa_sim_net: Remove redundant get_config callback
> 
>  drivers/vdpa/mlx5/net/mlx5_vnet.c    | 185 ++++++++++++++----
>  drivers/vdpa/vdpa.c                  | 270 +++++++++++++++++++++++++++
>  drivers/vdpa/vdpa_sim/vdpa_sim.h     |   4 +-
>  drivers/vdpa/vdpa_sim/vdpa_sim_net.c |  49 +++--
>  include/linux/vdpa.h                 |  16 ++
>  include/uapi/linux/vdpa.h            |  12 ++
>  6 files changed, 476 insertions(+), 60 deletions(-)
> 
> -- 
> 2.26.2

_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization