Netdev Archive on
help / color / mirror / Atom feed
From: Thomas Falcon <>
To: Jiri Pirko <>
Cc: Jakub Kicinski <>,,
Subject: Re: Exposing device ACL setting through devlink
Date: Mon, 21 Sep 2020 12:51:36 -0500	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <20200920152136.GB2323@nanopsycho.orion>

On 9/20/20 10:21 AM, Jiri Pirko wrote:
> Sat, Sep 19, 2020 at 01:20:34AM CEST, wrote:
>> On 9/18/20 2:20 AM, Jiri Pirko wrote:
>>> Thu, Sep 17, 2020 at 10:31:10PM CEST, wrote:
>>>> On 9/10/20 2:00 AM, Jiri Pirko wrote:
>>>>> Tue, Sep 08, 2020 at 08:27:13PM CEST, wrote:
>>>>>> On 9/4/20 5:37 PM, Jakub Kicinski wrote:
>>>>>>> On Fri, 4 Sep 2020 10:31:41 +0200 Jiri Pirko wrote:
>>>>>>>> Thu, Sep 03, 2020 at 07:59:45PM CEST, wrote:
>>>>>>>>> Hello, I am trying to expose MAC/VLAN ACL and pvid settings for IBM
>>>>>>>>> VNIC devices to administrators through devlink (originally through
>>>>>>>>> sysfs files, but that was rejected in favor of devlink). Could you
>>>>>>>>> give any tips on how you might go about doing this?
>>>>>>>> Tom, I believe you need to provide more info about what exactly do you
>>>>>>>> need to setup. But from what you wrote, it seems like you are looking
>>>>>>>> for bridge/tc offload. The infra is already in place and drivers are
>>>>>>>> implementing it. See mlxsw for example.
>>>>>>> I think Tom's use case is effectively exposing the the VF which VLANs
>>>>>>> and what MAC addrs it can use. Plus it's pvid. See:
>>>>>> Thanks, Jakub,
>>>>>> Right now, the use-case is to expose the allowed VLAN's and MAC addresses and
>>>>>> the VF's PVID. Other use-cases may be explored later on though.
>>>>> Who is configuring those?
>>>>> What does mean "allowed MAC address"? Does it mean a MAC address that VF
>>>>> can use to send packet as a source MAC?
>>>>> What does mean "allowed VLAN"? VF is sending vlan tagged frames and only
>>>>> some VIDs are allowed.
>>>>> Pardon my ignorance, this may be routine in the nic world. However I
>>>>> find the desc very vague. Please explain in details, then we can try to
>>>>> find fitting solution.
>>>>> Thanks!
>>>> These MAC or VLAN ACL settings are configured on the Power Hypervisor.
>>>> The rules for a VF can be to allow or deny all MAC addresses or VLAN ID's or
>>>> to allow a specified list of MAC address and VLAN ID's. The interface allows
>>>> or denies frames based on whether the ID in the VLAN tag or the source MAC
>>>> address is included in the list of allowed VLAN ID's or MAC addresses
>>>> specified during creation of the VF.
>>> At which point are you doing this ACL? Sounds to me, like this is the
>>> job of "a switch" which connects VFs and physical port. Then, you just
>>> need to configure this switch to pass/drop packets according to match.
>>> And that is what there is already implemented with TC-flower/u32 + actions
>>> and bridge offload.
>> Yes, this the filtering is done on a virtual switch in Power firmware. I am
>> really just trying to report the ACL list's configured at the firmware level
>> to users on the guest OS.
> We have means to model switches properly in linux and offload to them.
> I advise you to do that.

I will look into that, thank you!


>> Tom
>>>> Thanks for your help,
>>>> Tom

  reply	other threads:[~2020-09-21 17:51 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-03 17:59 Thomas Falcon
2020-09-04  8:31 ` Jiri Pirko
2020-09-04 22:37   ` Jakub Kicinski
2020-09-08 18:27     ` Thomas Falcon
2020-09-10  7:00       ` Jiri Pirko
2020-09-17 20:31         ` Thomas Falcon
2020-09-18  7:20           ` Jiri Pirko
2020-09-18 23:20             ` Thomas Falcon
2020-09-20 15:21               ` Jiri Pirko
2020-09-21 17:51                 ` Thomas Falcon [this message]
2020-09-21 20:37                 ` Jakub Kicinski
2020-09-23 17:01                   ` Thomas Falcon

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \ \ \ \ \ \ \
    --subject='Re: Exposing device ACL setting through devlink' \

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).