Re: opensm: suggestion to define new common port_groups file

[Eli Dorfman <dorfman.eli-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

On Wed, Feb 3, 2010 at 11:59 AM, Yevgeny Kliteynik
<kliteyn-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org> wrote:
> On 03/Feb/10 11:43, Eli Dorfman (Voltaire) wrote:
>>
>> Currently there is a duplication of port group definition in OpenSM
>> configuration files.
>> Using a single configuration file for port groups will make it easier to
>> manage and will allow using group name as keyword in other configuration
>> files (i.e. partitions.conf, qos-policy.conf and opensm.conf)
>>
>> The suggested format for port-groups.conf is a simple list:
>> GroupA: GUID1, GUID2, GUID3
>> GroupB: GUID4, GUID5, GUID6
>>
>> All configuration files shall still support the old format (of specifying
>> GUIDs explicitly) and will also recognize the new Groups.
>
> I'm all for it!
>
>>
>> Following an example of partitions.conf file with new group definition:
>> management=0x7fff,ipoib,defmember=full: GroupA=full, GroupB=limited,
>> ALL_CAS=limited;
>>
>> and qos-policy.conf with the new group definition:
>>
>> port-groups
>>     port-group
>>         port-guid: GroupA, GroupB
>>         name: my.group
>>     end-port-group
>> end-port-groups
>
> Perhaps in qos-policy.conf we should be able to reference
> GroupA and GroupB directly by its name, w/o the need to
> create additional group like it is shown in the example.

We can start with the simple suggestion as shown in the example and
then enhance as you suggest.

>
> Ideally, port-groups.conf parser should be able to
> understand various keywords, such as what is used in
> partitions.conf (ALL, SWITCHES, SELF, etc).
>
> To complicate port-groups.conf parser a bit more, it would
> be nice if it could support nested definition of port groups.
>
> But no need to do it right away, we can start with something
> simple.

I agree.

Eli
>
> -- Yevgeny
>
>>
>> Thanks,
>> Eli
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