[openib-general] [PATCH] IB/ipoib: user appropriate mtu selector for path queries

[Michael S. Tsirkin]

Quoting r. Roland Dreier <rdreier at cisco.com>:
> Subject: Re: [PATCH] IB/ipoib: user appropriate mtu selector for path queries
> 
> Seems OK from an anal spec compliance point of view, but I don't
> understand this:
> 
>  > This breaks IPoIB on networks with SM Tavor quirk activates.
> 
> Even if opensm returns a path record with a lower MTU, the underlying
> links still have a 2K mtu really, so nothing breaks.  IPoIB is just
> doing something naughty by ignoring the MTU in the path record.  So
> what breaks really?

Maybe "breaks" was too strong a word. Let's change that to
"This makes IPoIB behave in a naughty way on networks with SM Tavor quirk
active" :)

> (not to mention the fact that the "Tavor quirk" hasn't been accepted
> into OpenSM yet anyway)

AFAIK it has been accepted.

-- 
MST