Re: [PATCH 2/2] uio: Prefer MSI(X) interrupts in PCI drivers

From: Stephen Hemminger
Date: Fri Oct 06 2017 - 10:57:15 EST


On Fri, 6 Oct 2017 13:50:44 +0000
"Stahl, Manuel" <manuel.stahl@xxxxxxxxxxxxxxxxxxxxxxxx> wrote:

> MSI(X) interrupts are not shared between devices. So when available
> those should be preferred over legacy interrupts.
>
> Signed-off-by: Manuel Stahl <manuel.stahl@xxxxxxxxxxxxxxxxx>
> ---
> Âdrivers/uio/uio_pci_dmem_genirq.c | 27 ++++++++++++++++++++-------
> Âdrivers/uio/uio_pci_generic.cÂÂÂÂÂ| 24 ++++++++++++++++++------
> Â2 files changed, 38 insertions(+), 13 deletions(-)

The last time I tried to do MSI-X with pci-generic it got rejected
by the maintainer.