[ofa-general] [PATCH] IPoIB UD 4K MTU support

[Roland Dreier]

 > There is no issue on getting local length error, but there is an issue
 > when the other side set to 64k - 4 mtu, linux side set to 64k - 12 mtu,
 > the none TCP based application will be broken without amdin's notice.
 > TCP should be OK since it does MSS negotiation.

But the other side could easily have an MTU of 1 MB or 1 GB with a
different IPoIB CM implementation.  So I don't see how we can fix this
really.