@@ -201,7 +201,7 @@ fi
if [ "$DPDK" ] || [ "$DPDK_SHARED" ]; then
if [ -z "$DPDK_VER" ]; then
- DPDK_VER="20.11.4"
+ DPDK_VER="20.11.6"
fi
install_dpdk $DPDK_VER
if [ "$CC" = "clang" ]; then
@@ -204,9 +204,9 @@ Q: What DPDK version does each Open vSwitch release work with?
2.10.x 17.11.10
2.11.x 18.11.9
2.12.x 18.11.9
- 2.13.x 19.11.10
- 2.14.x 19.11.10
- 2.15.x 20.11.4
+ 2.13.x 19.11.13
+ 2.14.x 19.11.13
+ 2.15.x 20.11.6
============ ========
Q: Are all the DPDK releases that OVS versions work with maintained?
@@ -42,7 +42,7 @@ Build requirements
In addition to the requirements described in :doc:`general`, building Open
vSwitch with DPDK will require the following:
-- DPDK 20.11.4
+- DPDK 20.11.6
- A `DPDK supported NIC`_
@@ -73,9 +73,9 @@ Install DPDK
#. Download the `DPDK sources`_, extract the file and set ``DPDK_DIR``::
$ cd /usr/src/
- $ wget https://fast.dpdk.org/rel/dpdk-20.11.4.tar.xz
- $ tar xf dpdk-20.11.4.tar.xz
- $ export DPDK_DIR=/usr/src/dpdk-stable-20.11.4
+ $ wget https://fast.dpdk.org/rel/dpdk-20.11.6.tar.xz
+ $ tar xf dpdk-20.11.6.tar.xz
+ $ export DPDK_DIR=/usr/src/dpdk-stable-20.11.6
$ cd $DPDK_DIR
#. Configure and install DPDK using Meson
@@ -1,5 +1,20 @@
v2.15.6 - xx xxx xxxx
---------------------
+ - DPDK:
+ * OVS validated with DPDK 20.11.6.
+ A bug was introduced in DPDK 20.11.5 by the commit
+ 33f2e3756186 ("vhost: fix unsafe vring addresses modifications").
+ This bug can cause a deadlock when vIOMMU is enabled and NUMA
+ reallocation of the virtqueues happen.
+ A fix has been posted and pushed to the DPDK 20.11 branch.
+ It can be found here:
+ https://patches.dpdk.org/project/dpdk/patch/20220725203206.427083-2-david.marchand@redhat.com/.
+ If a user wishes to avoid the issue then it is recommended to use
+ DPDK 20.11.4 until the release of DPDK 20.11.7.
+ It should be noted that DPDK 20.11.4 does not benefit from the numerous
+ bug fixes addressed since its release.
+ If a user wishes to benefit from these fixes it is recommended to use
+ DPDK 20.11.6.
v2.15.5 - 15 Jun 2022
---------------------
Update OVS CLI and relevant documentation to use DPDK 20.11.6. A bug was introduced in DPDK 20.11.5 by the commit 33f2e3756186 ("vhost: fix unsafe vring addresses modifications"). This bug can cause a deadlock when vIOMMU is enabled and NUMA reallocation of the virtqueues happen. A fix [1] has been posted and pushed to the DPDK 20.11 branch. If a user wishes to avoid the issue then it is recommended to use DPDK 20.11.4 until the release of DPDK 20.11.7. It should be noted that DPDK 20.11.4 does not benefit from the numerous bug fixes addressed since its release. If a user wishes to benefit from these fixes it is recommended to use DPDK 20.11.6. [1] https://patches.dpdk.org/project/dpdk/patch/20220725203206.427083-2-david.marchand@redhat.com/ Signed-off-by: Michael Phelan <michael.phelan@intel.com> --- v2: - Update recommended DPDK version for older OvS versions in Documentation. --- --- .ci/linux-build.sh | 2 +- Documentation/faq/releases.rst | 6 +++--- Documentation/intro/install/dpdk.rst | 8 ++++---- NEWS | 15 +++++++++++++++ 4 files changed, 23 insertions(+), 8 deletions(-)