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| author |   Luca Boccassi <luca.boccassi@gmail.com> | 2018-11-19 12:59:01 +0000 |
|---|---|---|
| committer | Luca Boccassi <luca.boccassi@gmail.com> | 2018-11-19 12:59:24 +0000 |
| commit | 29058550643267a554e0368806dece63b047c5cb (patch) | |
| tree | a6f573fe3fbc14585529b83cfcc65da2dceefbf5 /doc/guides/linux_gsg/linux_drivers.rst | |
| parent | 8a853e3f0275efc8b05cb195085d45946942744a (diff) | |
New upstream version 18.11-rc4upstream/18.11-rc4
Change-Id: I861e1a2f7df210f57f44f1ad56b9ef789a4675e3
Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>
Diffstat (limited to 'doc/guides/linux_gsg/linux_drivers.rst')
| -rw-r--r-- | doc/guides/linux_gsg/linux_drivers.rst | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/doc/guides/linux_gsg/linux_drivers.rst b/doc/guides/linux_gsg/linux_drivers.rst index 371a817f..8da6a31b 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`` kernel module rather than ``igb_uio`` or ``uio_pci_generic``. For more details see :ref:`linux_gsg_binding_kernel` below. +.. note:: + + If the devices used for DPDK are bound to the ``uio_pci_generic`` kernel module, + please make sure that the IOMMU is disabled or passthrough. One can add + ``intel_iommu=off`` or ``amd_iommu=off`` or ``intel_iommu=on iommu=pt``in GRUB + command line on x86_64 systems, or add ``iommu.passthrough=1`` on arm64 system. + Since DPDK release 1.7 onward provides VFIO support, use of UIO is optional for platforms that support using VFIO. |