[openib-general] Re: [PATCH 8 of 20] ipath - sysfs support for core driver
halr at voltaire.com
Fri Mar 10 07:08:10 PST 2006
On Fri, 2006-03-10 at 09:59, Roland Dreier wrote:
> Greg> The main issue is that if you create a sysfs file like this,
> Greg> and then in 3 months realize that you need to change one of
> Greg> those characters to be something else, you are in big
> Greg> trouble...
> I think that PortInfo and NodeInfo might be fair game for sysfs files,
> because they are actually defined in the IB spec with a binary format
> that is sent on the wire. So they're not going to change.
Not true; There have been and likely will be more upward compatible
changes (especially to PortInfo).
> On the other hand it's not clear to me why using that wire protocol as
> an interface to userspace is a good idea...
> - R.
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