This is the same v3 but with the correct email address of Greg. In the
first iteration the first letter of the email was missing... ;)
On 10/04/15 23:43, Vlad Zolotarov wrote:
This series add support for MSI and MSI-X interrupts to uio_pci_generic driver.
Currently uio_pci_generic supports only legacy INT#x interrupts source. However
there are situations when this is not enough, for instance SR-IOV VF devices
that
simply don't have INT#x capability. For such devices uio_pci_generic will simply
fail (more specifically probe() will fail).
When IOMMU is either not available (e.g. Amazon EC2) or not acceptable due to performance
overhead and thus VFIO is not an option users that develop user-space drivers
are left
without any option but to develop some proprietary UIO drivers (e.g. igb_uio
driver in Intel's
DPDK) just to be able to use UIO infrastructure.
This series provides a generic solution for this problem while preserving the original behaviour
for devices for which the original uio_pci_generic had worked before (i.e.
INT#x will be used by default).
New in v3:
- Add __iomem qualifier to temp buffer receiving ioremap value.
New in v2:
- Added #include <linux/uaccess.h> to uio_pci_generic.c
Vlad Zolotarov (3):
uio: add ioctl support
uio_pci_generic: add MSI/MSI-X support
Documentation: update uio-howto
Documentation/DocBook/uio-howto.tmpl | 29 ++-
drivers/uio/uio.c | 15 ++
drivers/uio/uio_pci_generic.c | 410 +++++++++++++++++++++++++++++++++--
include/linux/uio_driver.h | 3 +
include/linux/uio_pci_generic.h | 36 +++
5 files changed, 467 insertions(+), 26 deletions(-)
create mode 100644 include/linux/uio_pci_generic.h
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