Re: [dpdk-dev] [PATCH 0/2] uio_msi: device driver

[Avi Kivity]

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?

> Stephen Hemminger (2):
>
> *** BLURB HERE ***
>
> Stephen Hemminger (2):
>    uio: add support for ioctls
>    uio: new driver to support PCI MSI-X
>
>   drivers/uio/Kconfig          |   9 ++
>   drivers/uio/Makefile         |   1 +
>   drivers/uio/uio.c            |  15 ++
>   drivers/uio/uio_msi.c        | 378 +++++++++++++++++++++++++++++++++++++++++++
>   include/linux/uio_driver.h   |   3 +
>   include/uapi/linux/Kbuild    |   1 +
>   include/uapi/linux/uio_msi.h |  22 +++
>   7 files changed, 429 insertions(+)
>   create mode 100644 drivers/uio/uio_msi.c
>   create mode 100644 include/uapi/linux/uio_msi.h

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