Unable to get stmmac driver of Altera Cyclone V to support MTU9000

[Valdis.Kletnieks at vt.edu]

On Mon, 28 Sep 2015 10:14:47 +0800, Teoh Choon Zone said:

> > Have you tried the above with 8972 to instead of 9000.
> Yes, but nothing above 8144 works.

It's possible it's a defective design, and is crippled so it can manage
8144 but not the 9000 most chipsets can do.  The fact that 8144 works
is proof the chipset *does* have a concept of jumbograms - but there's
been a *lot* of misdesigned chips that have this sort of issue....

Your choices may be limited to running the subnet with an MTU of 8144, or
replacing the defective card.  Have you found anything online claiming that
the card *can* specifically support MTU=9000?, or reached out to the
company?
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