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@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
