[openib-general] ethtool support for ipoib

[Michael S. Tsirkin]

Quoting r. Shirley Ma <xma at us.ibm.com>:
> > > /* can be added later once ipoib support sg
> > > .get_sg = ethtool_op_get_sg,
> > > .set_sg = ethtool_op_set_sg,
> > > */
> > 
> > The difficulty here is that sg currently requires checksum offloading in
> > netdevice.
> 
> I read the discussion in net-dev.

Hmm, any suggestions?

> Since IB packet has its own CRC (ICRC, VCRC). Is it a good idea to enable
> checksum unnecessary in a pure IB Fabrics for large MTU 64K.  It requires some
> negotiation.

Not sure what you are saying here.

> Does your prototype implementation for large MTU requires both ends agreement?
> Practically it can be implemented, but I don't know what RFCs have defined.

Look up IPoIB connected mode.

-- 
MST