On Wed, 11 Feb 2015 18:19:00 +0000 Andrey Utkin <[email protected]> wrote:
> Is it true that _every_ PCI or PCI Express device supporting MSI is > indicated by some mention of MSI in "lspci -v", and if there's no such > mention, it surely doesn't support MSI? > Look at kernel source (drivers/pci/msi.c) function pci_msi_supported there are many things which can block MSI. There can be cases where PCI quirks in kernel block MSI because for example the device supports MSI, but the motherboard BIOS is broken. This only happens on really old systems. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
