On 6/30/25 11:52 AM, David Marchand via dev wrote: > igb_uio has been moved out of the DPDK git repository and is not > maintained actively anymore. > vfio-pci provides all needed features for DPDK. > > Default to giving examples with vfio-pci. > > Signed-off-by: David Marchand <david.march...@redhat.com> > --- > Documentation/howto/userspace-tunneling.rst | 3 +-- > Documentation/topics/dpdk/vhost-user.rst | 8 +++----- > 2 files changed, 4 insertions(+), 7 deletions(-) > > diff --git a/Documentation/howto/userspace-tunneling.rst > b/Documentation/howto/userspace-tunneling.rst > index 31d82fd5e5..0d84497e09 100644 > --- a/Documentation/howto/userspace-tunneling.rst > +++ b/Documentation/howto/userspace-tunneling.rst > @@ -149,8 +149,7 @@ Perform the following configuration on `host1`: > $ ip link set eth1 up > $ iptables -F > > - If instead the interface is a DPDK interface and bound to the ``igb_uio`` > or > - ``vfio`` driver, run:: > + If instead the interface is a DPDK interface, run:: > > $ ovs-vsctl --timeout 10 add-port br-phy dpdk0 \ > -- set Interface dpdk0 type=dpdk options:dpdk-devargs=0000:06:00.0 > diff --git a/Documentation/topics/dpdk/vhost-user.rst > b/Documentation/topics/dpdk/vhost-user.rst > index 76a5ec6638..3c31f52000 100644 > --- a/Documentation/topics/dpdk/vhost-user.rst > +++ b/Documentation/topics/dpdk/vhost-user.rst > @@ -408,15 +408,13 @@ To begin, instantiate a guest as described in > :ref:`dpdk-vhost-user` or > :ref:`dpdk-vhost-user-client`. Once started, connect to the VM, download the > DPDK sources to VM and build DPDK as described in :ref:`dpdk-install`. > > -Setup huge pages and DPDK devices using UIO:: > +Setup huge pages and DPDK devices using VFIO:: > > $ sysctl vm.nr_hugepages=1024 > $ mkdir -p /dev/hugepages > $ mount -t hugetlbfs hugetlbfs /dev/hugepages # only if not already > mounted > - $ modprobe uio > - $ insmod $DPDK_BUILD/kmod/igb_uio.ko > - $ driverctl set-override 0000:00:03.0 igb_uio > - $ driverctl set-override 0000:00:04.0 igb_uio > + $ driverctl set-override 0000:00:03.0 vfio-pci > + $ driverctl set-override 0000:00:04.0 vfio-pci
This doc is for VM. Chances are, this VM doesn't have IOMMU as the example XML doesn't. So, may also be worth mentioning the no-IOMMU configuration. Alternative is to use uio_pci_generic instead of igb_uio. IIRC, older RHEL kernels do not even have ability to turn on insecure noiommu mode for vfio module. So, may be worth to at least mention the uio_pci_generic anyway. Best regards, Ilya Maximets. _______________________________________________ dev mailing list d...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-dev
