On Wed, 5 Sep 2018 00:20:29 +0000 "Tone Zhang (Arm Technology China)" <tone.zh...@arm.com> wrote:
> Hi Rami, > > Yes, I mean “uio_pci_generic” kernel module. > > I will update the change accordingly. > > Thanks. > > Br, > Tone > > From: Rami Rosen <roszenr...@gmail.com> > Sent: Wednesday, September 5, 2018 3:55 AM > To: Tone Zhang (Arm Technology China) <tone.zh...@arm.com> > Cc: dev@dpdk.org; nd <n...@arm.com> > Subject: Re: [dpdk-dev] [PATCH] doc: Clarify IOMMU usage with "uio-pci" > kernel module > > Hi Tone, > >if the devices for used DPDK bound to the ``uio-pci`` kernel module, please > >make > > The three kernel modules which can be used for DPDK binding are vfio-pci, > uio_pci_generic and igb_uio. Don't you mean here uio_pci_generic ? > > Regards, > Rami Rosen > > > בתאריך יום ג׳, 4 בספט׳ 2018, 11:59, מאת tone.z > When binding the devices used by DPDK to the "uio-pci" kernel module, > the IOMMU should be disabled in order not to break the > because of the virtual / physical address mapping. > > The patch clarifies the IOMMU configuration on both x86_64 and arm64 > systems. > > Signed-off-by: tone.zhang <tone.zh...@arm.com<mailto:tone.zh...@arm.com>> > --- > doc/guides/linux_gsg/linux_drivers.rst | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/doc/guides/linux_gsg/linux_drivers.rst > b/doc/guides/linux_gsg/linux_drivers.rst > index 371a817..8f9ec8f 100644 > --- a/doc/guides/linux_gsg/linux_drivers.rst > +++ b/doc/guides/linux_gsg/linux_drivers.rst > @@ -48,6 +48,13 @@ be loaded as shown below: > ``vfio-pci`` > 2.7.4 Also, it would be good if documentation was clear in recommending using VFIO instead if IOMMU is present.
