From: Jeff Kirsher <jeffrey.t.kirsher@xxxxxxxxx> Date: Fri, 30 Jul 2010 17:59:12 -0700 > From: Alexander Duyck <alexander.h.duyck@xxxxxxxxx> > > This change makes it so that both igb and ixgbe can trigger a full pcie > function reset if the reset_devices kernel parameter is defined. The main > reason for adding this is that kdump can cause serious issues when the > kdump kernel resets the IOMMU while DMA transactions are still occurring. > > Signed-off-by: Alexander Duyck <alexander.h.duyck@xxxxxxxxx> > Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@xxxxxxxxx> I tend to disagree with the essence of this change. Which is that we should add workaround after workaround for things that aren't functioning properly in kdump and kexec. They should have a pass that shuts devices down properly, so that this kind of stuff doesn't need to happen in the kernel we then boot into. What happens on non-PCIE systems then? Do they just lose when this happens? No, you dun goof'd. :-) Find another way to fix this please. Thanks. -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
