From: Alexandru Gagniuc <mr.nuke.me@xxxxxxxxx> Date: Mon, 6 Aug 2018 18:25:35 -0500 > PCIe downtraining happens when both the device and PCIe port are > capable of a larger bus width or higher speed than negotiated. > Downtraining might be indicative of other problems in the system, and > identifying this from userspace is neither intuitive, nor > straightforward. > > The easiest way to detect this is with pcie_print_link_status(), > since the bottleneck is usually the link that is downtrained. It's not > a perfect solution, but it works extremely well in most cases. > > Signed-off-by: Alexandru Gagniuc <mr.nuke.me@xxxxxxxxx> Feel free to merge this entire series via the PCI tree. For the series: Acked-by: David S. Miller <davem@xxxxxxxxxxxxx>
