[ofa-general] Re: [PATCH 1/4] ib/ipoib: specify TClassand FlowLabelwith PR queries for QoS support

[Michael S. Tsirkin]

> Quoting Jason Gunthorpe <jgunthorpe at obsidianresearch.com>:
> Subject: Re: [PATCH 1/4] ib/ipoib: specify TClassand?FlowLabelwith PR queries for QoS support
> 
> On Wed, Aug 08, 2007 at 01:31:04PM +0300, Michael S. Tsirkin wrote:
> > > AFAIK, when using the 64K MTU setting for IPoIB, if the remote side
> > > doesn't support RC then things go wonky.
> > 
> > The scenario you describe works fine for me.
> > What does go wonky for you?
> 
> Only this path MTU buisness, which is somewhat unusual. PMTU is
> difficult to deal with in UDP applications if you want to prevent
> fragmentation. Wonky is maybe not a good term.

But this is not really IPoIB specific, is it?

-- 
MST