[openib-general] Re: IPoIB MTU Changing

[Hal Rosenstock]

On Thu, 2005-06-09 at 12:48, Roland Dreier wrote: 
>     Hal> Yes, the multicast MTU could further trim this down but the
>     Hal> admin MTU appears to be currently capped at IPOIB_PACKET_SIZE
>     Hal> - IPOIB_ENCAP_LEN.  That's OK for a 2K link MTU but if the
>     Hal> link were negotiated at 4K MTU, shouldn't this be allowed to
>     Hal> be larger if requested ?
> 
> No, you would have to change the PACKET_SIZE define to make 4K packets
> work anyway.

OK. The changes go a little deeper than I thought. Would it be
worthwhile to accomodate this for HCAs which support 4K MTU ?

-- Hal