Hello Ferruh,
> Unless installed "igb_uio" won't be available to use with "modprobe", not sure
> about adding that detail, what do you think?
I did not add it. In current version this information is already present:
> -#. Bind the intended ENA device to igb_uio module
> This is only required if there is no iommu on the system, right? Won't ena
> will
> work without this parameter on the system that has iommu?
I will prepare next version, that will clarify it.
Best regards,
Rafal
wt., 9 paź 2018 o 12:56 Ferruh Yigit <ferruh.yi...@intel.com> napisał(a):
>
> On 10/5/2018 10:02 AM, Rafal Kozik wrote:
> > Add instruction how to bind ENA to VFIO-PCI driver.
> >
> > Fixes: cf8a122c296a ("ena: introduce documentation")
> > Cc: sta...@dpdk.org
> >
> > Signed-off-by: Zorik Machulsky <zo...@amazon.com>
> > Signed-off-by: Rafal Kozik <r...@semihalf.com>
> > Acked-by: Michal Krawczyk <m...@semihalf.com>
> > ---
> > doc/guides/nics/ena.rst | 12 +++++++++---
> > doc/guides/nics/features/ena.ini | 1 +
> > 2 files changed, 10 insertions(+), 3 deletions(-)
> >
> > diff --git a/doc/guides/nics/ena.rst b/doc/guides/nics/ena.rst
> > index d19912e..0dfefc6 100644
> > --- a/doc/guides/nics/ena.rst
> > +++ b/doc/guides/nics/ena.rst
> > @@ -187,11 +187,17 @@ Prerequisites
> > -------------
> >
> > #. Prepare the system as recommended by DPDK suite. This includes
> > environment
> > - variables, hugepages configuration, tool-chains and configuration
> > + variables, hugepages configuration, tool-chains and configuration.
> >
> > -#. Insert igb_uio kernel module using the command 'modprobe igb_uio'
> > +#. ENA PMD can operate with vfio-pci or igb_uio driver.
> >
> > -#. Bind the intended ENA device to igb_uio module
> > +#. Insert vfio-pci or igb_uio kernel module using the command
> > + 'modprobe vfio-pci' or 'modprobe igb_uio' respectively.
>
> Unless installed "igb_uio" won't be available to use with "modprobe", not sure
> about adding that detail, what do you think?
>
> > +
> > +#. If vfio-pci driver is used please make sure noiommu mode is enabled:
> > + echo 1 > /sys/module/vfio/parameters/enable_unsafe_noiommu_mode
>
> This is only required if there is no iommu on the system, right? Won't ena
> will
> work without this parameter on the system that has iommu?
>
> > +
> > +#. Bind the intended ENA device to vfio-pci or igb_uio module.
> >
> >
> > At this point the system should be ready to run DPDK applications. Once the
> > diff --git a/doc/guides/nics/features/ena.ini
> > b/doc/guides/nics/features/ena.ini
> > index 691c1e3..aa6f05a 100644
> > --- a/doc/guides/nics/features/ena.ini
> > +++ b/doc/guides/nics/features/ena.ini
> > @@ -23,5 +23,6 @@ Inner L4 checksum = Y
> > Basic stats = Y
> > Extended stats = Y
> > Linux UIO = Y
> > +Linux VFIO = Y
> > x86-32 = Y
> > x86-64 = Y
> >
>
