On Thu, Jan 15, 2009 at 06:53:51PM +0100, Arnd Bergmann wrote: > On Thursday 15 January 2009, Ira Snyder wrote: > > > > These are PCI boards, not PCIe. The host computers are all Pentium3-M > > systems. I tried enabling MSI on the Freescale boards in the driver, by > > calling pci_enable_msi() during probe(), and it failed. > > That doesn't really mean anything, just that the PCI endpoint doesn't > announce its capability to do MSI in the config space, or that it > does not have an interrupt line. Since you basically implement the > device on the FSL board, you should also be able to define the interrupt > capabilities by writing to the config space. > > Do you know what kind of chipset the host uses? It should be fairly > simple to find out whether or not it can do MSI. >
I have another question for you Arnd. What did you use as the host and guest drivers when you ran virtio over PCI? Did you use two unmodified instances of virtio_net (one on host, one on guest) for networking, or did you write new virtio drivers for those? How about for virtio_console (if you ran it at all). Thanks again, Ira _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev