Messages in this thread | | | Date | Thu, 1 Oct 2015 07:57:31 -0700 | From | Stephen Hemminger <> | Subject | Re: [dpdk-dev] [PATCH 0/2] uio_msi: device driver |
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On Thu, 1 Oct 2015 13:59:02 +0300 Avi Kivity <avi@scylladb.com> wrote:
> On 10/01/2015 01:28 AM, Stephen Hemminger wrote: > > This is a new UIO device driver to allow supporting MSI-X and MSI devices > > in userspace. It has been used in environments like VMware and older versions > > of QEMU/KVM where no IOMMU support is available. > > Why not add msi/msix support to uio_pci_generic?
That is possible but that would meet ABI and other resistance from the author. Also, uio_pci_generic makes it harder to find resources since it doesn't fully utilize UIO infrastructure.
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