On Tue, Dec 10, 2024 at 11:17:48PM -0800, Shivasharan S wrote: > Update the p2p_dma_distance() to determine inter-switch P2P links existing > between two switches and use this to calculate the DMA distance between > two devices. This requires enabling the PCIE_P2P_LINK config option in > the kernel. What the heck are "P2P links supposed to be. And why shoud Linux support something non-standard like this? NAK for these hacks to the core code unless you can get a vendor indpendent spec for it.