Re: [External] Re: [PATCH bpf-next] netkit: Add some ethtool ops to provide information to user

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在 2023/11/30 17:06, Nikolay Aleksandrov 写道:
On 11/30/23 09:58, Feng zhou wrote:
From: Feng Zhou <zhoufeng.zf@xxxxxxxxxxxxx>

Add get_strings, get_sset_count, get_ethtool_stats to get peer
ifindex.
ethtool -S nk1
NIC statistics:
      peer_ifindex: 36

Add get_link, get_link_ksettings to get link stat.
ethtool nk1
Settings for nk1:
    ...
    Link detected: yes

Add get_ts_info.
ethtool -T nk1
Time stamping parameters for nk1:
...

Signed-off-by: Feng Zhou <zhoufeng.zf@xxxxxxxxxxxxx>
---
  drivers/net/netkit.c | 53 ++++++++++++++++++++++++++++++++++++++++++++
  1 file changed, 53 insertions(+)


Hi,
I don't see any point in sending peer_ifindex through ethtool, even
worse through ethtool stats. That is definitely the wrong place for it.
You can already retrieve that through netlink. About the speed/duplex
this one makes more sense, but this is the wrong way to do it.
See how we did it for virtio_net (you are free to set speed/duplex
to anything to please bonding for example). Although I doubt anyone will use netkit with bonding, so even that is questionable. :)

Nacked-by: Nikolay Aleksandrov <razor@xxxxxxxxxxxxx>

Cheers,
  Nik


We use netkit to replace veth to improve performance, veth can be used ethtool -S veth to get peer_ifindex, so this part is added, as long as it is to keep the netkit part and veth unified, to ensure the same usage habits, and to replace it without perception.






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