On Wed, 23 Jul 2025 15:16:22 -0700 Jakub Kicinski <[email protected]> wrote:
> On Wed, 23 Jul 2025 20:18:03 +0000 Haiyang Zhang wrote: > > > > Btw, if I understand this correctly. This is for future development so > > > > it's not a blocker for this patch? > > > > > > Not a blocker, I'm just giving an example of the netvsc auto-weirdness > > > being a source of tech debt and bugs. Commit d7501e076d859d is another > > > recent one off the top of my head. IIUC systemd-networkd is broadly > > > deployed now. It'd be great if there was some migration plan for moving > > > this sort of VM auto-bonding to user space (with the use of the common > > > bonding driver, not each hypervisor rolling its own). > > > > Actually, we had used the common bonding driver 9 years ago. But it's > > replaced by this kernel/netvsc based "transparent" bonding mode. See > > the patches listed below. > > > > The user mode bonding scripts were unstable, and difficult to deliver > > & update for various distros. So Stephen developed the new "transparent" > > bonding mode, which greatly improves the situation. > > I specifically highlighted systemd-networkd as the change in the user > space landscape. Haiyang tried valiantly but getting every distro to do the right thing with VF's bonding and hot plug was impossible to support.
