netdev - Re: [PATCH net-next v2 4/7] devlink: allow subports on devlink PCI ports

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Message-ID: <20190304110857.GW2314@nanopsycho>
Date:   Mon, 4 Mar 2019 12:08:57 +0100
From:   Jiri Pirko <jiri@...nulli.us>
To:     Jakub Kicinski <jakub.kicinski@...ronome.com>
Cc:     davem@...emloft.net, netdev@...r.kernel.org,
        oss-drivers@...ronome.com
Subject: Re: [PATCH net-next v2 4/7] devlink: allow subports on devlink PCI
 ports

Fri, Mar 01, 2019 at 07:04:50PM CET, jakub.kicinski@...ronome.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?