RE: [PATCH 1/2] vdpa: support set mac address from vdpa tool

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> From: Jason Wang <jasowang@xxxxxxxxxx>
> Sent: Monday, June 17, 2024 7:18 AM
> 
> On Wed, Jun 12, 2024 at 2:30 PM Jiri Pirko <jiri@xxxxxxxxxxx> wrote:
> >
> > Wed, Jun 12, 2024 at 03:58:10AM CEST, kuba@xxxxxxxxxx wrote:
> > >On Tue, 11 Jun 2024 13:32:32 +0800 Cindy Lu wrote:
> > >> Add new UAPI to support the mac address from vdpa tool Function
> > >> vdpa_nl_cmd_dev_config_set_doit() will get the MAC address from the
> > >> vdpa tool and then set it to the device.
> > >>
> > >> The usage is: vdpa dev set name vdpa_name mac **:**:**:**:**:**
> > >
> > >Why don't you use devlink?
> >
> > Fair question. Why does vdpa-specific uapi even exist? To have
> > driver-specific uapi Does not make any sense to me :/
> 
> It came with devlink first actually, but switched to a dedicated uAPI.
> 
> Parav(cced) may explain more here.
> 
Devlink configures function level mac that applies to all protocol devices (vdpa, rdma, netdev) etc.
Additionally, vdpa device level mac can be different (an additional one) to apply to only vdpa traffic.
Hence dedicated uAPI was added.





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