netdev - Re: [PATCH net-next v2] ibmveth: Allow users to update reported speed and duplex

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Date:   Tue, 6 Aug 2019 15:15:24 -0700
From:   Jakub Kicinski <jakub.kicinski@...ronome.com>
To:     Thomas Falcon <tlfalcon@...ux.ibm.com>
Cc:     mpe@...erman.id.au, netdev@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH net-next v2] ibmveth: Allow users to update reported
 speed and duplex

On Tue,  6 Aug 2019 11:23:08 -0500, Thomas Falcon wrote:
> Reported ethtool link settings for the ibmveth driver are currently
> hardcoded and no longer reflect the actual capabilities of supported
> hardware. There is no interface designed for retrieving this information
> from device firmware nor is there any way to update current settings
> to reflect observed or expected link speeds.
> 
> To avoid breaking existing configurations, retain current values as
> default settings but let users update them to match the expected
> capabilities of underlying hardware if needed. This update would
> allow the use of configurations that rely on certain link speed
> settings, such as LACP. This patch is based on the implementation
> in virtio_net.
> 
> Signed-off-by: Thomas Falcon <tlfalcon@...ux.ibm.com>

Looks like this is the third copy of the same code virtio and
netvsc have :(  Is there a chance we could factor this out into
helpers in the core?