Dump e1000 registers on detection of PCI error.
This patch asks that the arch re-enable MMIO long
enough to perform the register dump -- and then
it requests the usual card reset. Works good for me.
This patch requires the patch at
(patch "1460945 tx hang debug code" from Jesse)
to be applied first. This patch also requires some
recent PowerPC patches to be applied: google for
[PATCH 0/4]: PowerPC: EEH: Add support for MMIO enabled
Signed-off-by: Linas Vepstas firstname.lastname@example.org