On Mon, 4 Mar 2019 12:08:57 +0100, Jiri Pirko wrote: > Fri, Mar 01, 2019 at 07:04:50PM CET, jakub.kicin...@netronome.com wrote: > >PCI endpoint corresponds to a PCI device, but such device > >can have one more more logical device ports associated with it. > >We need a way to distinguish those. Add a PCI subport in the > >dumps and print the info in phys_port_name appropriately. > > > >This is not equivalent to port splitting, there is no split > >group. It's just a way of representing multiple netdevs on > >a single PCI function. > > > >Note that the quality of being multiport pertains only to > >the PCI function itself. A PF having multiple netdevs does > >not mean that its VFs will also have multiple, or that VFs > >are associated with any particular port of a multiport VF. > > > >Example (bus 05 device has subports, bus 82 has only one port per > >function): > > How do you plan to added/remove these subports?
I can't say I got that figured out fully, but I was wondering if we can have some form of: $ devlink partition pci/0000:82:00.0 new pci/0000:82:00.0/1001002 Which would create appropriate sub-port and port (-repr-) netdev. Plus optionally the ability to work with something like the already existing mdev infrastructure for passing to a VM. But I haven't even looked at that, yet.
