On Friday 16 January 2015 15:49:13 Will Deacon wrote: > > The on-board ethernet on Seattle requires the driver to program its AXI > attributes, so configuring it to be a coherent master actually means > "program the same cacheable AXI settings as you have on the CPU". That > sounds like Linux should be doing it to me, but even if the firmware takes > a guess at "normal cacheable WBRWA", it's not clear to me whether that > register persists across things like adapter reset. > > Tom? > > There's also the situation where the firmware hasn't initialised the > register and Linux realises this during probe. What should it do then? In case of a 10gbit ethernet adapter, there really should be no question regarding whether to set it coherent or not. Can't Linux just always set this AXI attribute in the driver? Arnd -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
