[ovs-dev] [PATCH v1] docs: Use DPDK 16.11.2 stable release.
Stokes, Ian
ian.stokes at intel.com
Tue Jul 4 09:08:55 UTC 2017
> Hi Ian
>
> Do you have a good link to the 16.11.2 release notes ?
> I have been looking around and found some links but may not be the best
> and I am not sure new functionality is not being enabled with 16.11.2 ?
>
> What specifically do we want from 16.11.2 ?
>
> Thanks Darrell
Hi Darrell,
16.11.2 will not have new functionality, it will consist of the latest bug fixes for existing functionality for DPDK 16.11.1. There is no API/ABI changes in the stable point releases for DPDK.
A list of the bugs fixed in 16.11.2 since 16.11.1 is available here
http://dpdk.org/doc/guides-16.11/rel_notes/release_16_11.html
In particular what caught my eye was the bug fixes for vfio and vhost
vfio: fix disabling INTx
vfio: fix secondary process start
vhost: change log levels in client mode
vhost: fix dequeue zero copy
vhost: fix false sharing
vhost: fix fd leaks for vhost-user server mode
vhost: fix max queues
vhost: fix multiple queue not enabled for old kernels
vhost: fix use after free
There is also a number of out of bound array bug fixes for the i40e and ixgbe drivers.
On a side note for the motivation for the move, there has been instances in the past (for example mempool allocations) where a bug has been reported in OVS DPDK in specific cornercases, upon investigating we found it was a bug in DPDK 16.11.0 release which had already been reported and fixed in the 16.11.1 release.
As the stable releases consist of bug fixes only there should be no issue pointing users to the latest stable release of the DPDK currently supported. We've done this previously for OVS 2.6.x releases where we've pushed users to the stable DPDK 16.07.2 release.
Ian
>
>
> On 7/3/17, 1:01 PM, "ovs-dev-bounces at openvswitch.org on behalf of Stokes,
> Ian" <ovs-dev-bounces at openvswitch.org on behalf of ian.stokes at intel.com>
> wrote:
>
> Hi All,
>
> I would like to see this go into the OVS 2.7.1 branch to ensure users
> are using the latest stable DPDK 16.11 release. If anyone has time to
> review this patch I would be grateful. I've been using 16.11.2 myself for
> the last number of weeks and have not encountered any issues.
>
> Thanks
> Ian
>
> > -----Original Message-----
> > From: ovs-dev-bounces at openvswitch.org [mailto:ovs-dev-
> > bounces at openvswitch.org] On Behalf Of Ian Stokes
> > Sent: Tuesday, June 20, 2017 1:57 PM
> > To: dev at openvswitch.org
> > Subject: [ovs-dev] [PATCH v1] docs: Use DPDK 16.11.2 stable release.
> >
> > Modify docs and travis linux build script to use the DPDK 16.11.2
> stable
> > branch to benefit from most recent bug fixes.
> >
> > Signed-off-by: Ian Stokes <ian.stokes at intel.com>
> > ---
> > .travis/linux-build.sh | 2 +-
> > Documentation/faq/releases.rst | 2 +-
> > Documentation/intro/install/dpdk.rst | 6 +++---
> > Documentation/topics/dpdk/vhost-user.rst | 8 ++++----
> > 4 files changed, 9 insertions(+), 9 deletions(-)
> >
> > diff --git a/.travis/linux-build.sh b/.travis/linux-build.sh index
> > 8750d68..f66b534 100755
> > --- a/.travis/linux-build.sh
> > +++ b/.travis/linux-build.sh
> > @@ -80,7 +80,7 @@ fi
> >
> > if [ "$DPDK" ]; then
> > if [ -z "$DPDK_VER" ]; then
> > - DPDK_VER="16.11.1"
> > + DPDK_VER="16.11.2"
> > fi
> > install_dpdk $DPDK_VER
> > if [ "$CC" = "clang" ]; then
> > diff --git a/Documentation/faq/releases.rst
> > b/Documentation/faq/releases.rst index 6a53e3b..707834b 100644
> > --- a/Documentation/faq/releases.rst
> > +++ b/Documentation/faq/releases.rst
> > @@ -160,7 +160,7 @@ Q: What DPDK version does each Open vSwitch
> release
> > work with?
> > 2.4.x 2.0
> > 2.5.x 2.2
> > 2.6.x 16.07.2
> > - 2.7.x 16.11.1
> > + 2.7.x 16.11.2
> > ============ =======
> >
> > Q: I get an error like this when I configure Open vSwitch:
> > diff --git a/Documentation/intro/install/dpdk.rst
> > b/Documentation/intro/install/dpdk.rst
> > index e83f852..a05aa1a 100644
> > --- a/Documentation/intro/install/dpdk.rst
> > +++ b/Documentation/intro/install/dpdk.rst
> > @@ -69,9 +69,9 @@ Install DPDK
> > #. Download the `DPDK sources`_, extract the file and set
> ``DPDK_DIR``::
> >
> > $ cd /usr/src/
> > - $ wget https://urldefense.proofpoint.com/v2/url?u=http-
> 3A__fast.dpdk.org_rel_dpdk-
> 2D16.11.1.tar.xz&d=DwICAg&c=uilaK90D4TOVoH58JNXRgQ&r=BVhFA09CGX7JQ5Ih-
> uZnsw&m=88NoNvcZ8i84KcaxfVYNqAcbt6HZqEWwRBivO0a8ChQ&s=W-
> zvsIZPdDdXUqDNBAT0zYhAdY3WYLg2yTPJpUy4Uuo&e=
> > - $ tar xf dpdk-16.11.1.tar.xz
> > - $ export DPDK_DIR=/usr/src/dpdk-stable-16.11.1
> > + $ wget https://urldefense.proofpoint.com/v2/url?u=http-
> 3A__fast.dpdk.org_rel_dpdk-
> 2D16.11.2.tar.xz&d=DwICAg&c=uilaK90D4TOVoH58JNXRgQ&r=BVhFA09CGX7JQ5Ih-
> uZnsw&m=88NoNvcZ8i84KcaxfVYNqAcbt6HZqEWwRBivO0a8ChQ&s=wbLVYNpJZGtKTloAPxp3
> 6_XAWi7oVNKTTb9ymPuxqoE&e=
> > + $ tar xf dpdk-16.11.2.tar.xz
> > + $ export DPDK_DIR=/usr/src/dpdk-stable-16.11.2
> > $ cd $DPDK_DIR
> >
> > #. (Optional) Configure DPDK as a shared library diff --git
> > a/Documentation/topics/dpdk/vhost-user.rst
> > b/Documentation/topics/dpdk/vhost-user.rst
> > index 6b0bf9b..e76da5f 100644
> > --- a/Documentation/topics/dpdk/vhost-user.rst
> > +++ b/Documentation/topics/dpdk/vhost-user.rst
> > @@ -292,9 +292,9 @@ To begin, instantiate a guest as described in
> > :ref:`dpdk-vhost-user` or DPDK sources to VM and build DPDK::
> >
> > $ cd /root/dpdk/
> > - $ wget https://urldefense.proofpoint.com/v2/url?u=http-
> 3A__fast.dpdk.org_rel_dpdk-
> 2D16.11.1.tar.xz&d=DwICAg&c=uilaK90D4TOVoH58JNXRgQ&r=BVhFA09CGX7JQ5Ih-
> uZnsw&m=88NoNvcZ8i84KcaxfVYNqAcbt6HZqEWwRBivO0a8ChQ&s=W-
> zvsIZPdDdXUqDNBAT0zYhAdY3WYLg2yTPJpUy4Uuo&e=
> > - $ tar xf dpdk-16.11.1.tar.xz
> > - $ export DPDK_DIR=/root/dpdk/dpdk-stable-16.11.1
> > + $ wget https://urldefense.proofpoint.com/v2/url?u=http-
> 3A__fast.dpdk.org_rel_dpdk-
> 2D16.11.2.tar.xz&d=DwICAg&c=uilaK90D4TOVoH58JNXRgQ&r=BVhFA09CGX7JQ5Ih-
> uZnsw&m=88NoNvcZ8i84KcaxfVYNqAcbt6HZqEWwRBivO0a8ChQ&s=wbLVYNpJZGtKTloAPxp3
> 6_XAWi7oVNKTTb9ymPuxqoE&e=
> > + $ tar xf dpdk-16.11.2.tar.xz
> > + $ export DPDK_DIR=/root/dpdk/dpdk-stable-16.11.2
> > $ export DPDK_TARGET=x86_64-native-linuxapp-gcc
> > $ export DPDK_BUILD=$DPDK_DIR/$DPDK_TARGET
> > $ cd $DPDK_DIR
> > @@ -378,7 +378,7 @@ Sample XML
> > </disk>
> > <disk type='dir' device='disk'>
> > <driver name='qemu' type='fat'/>
> > - <source dir='/usr/src/dpdk-stable-16.11.1'/>
> > + <source dir='/usr/src/dpdk-stable-16.11.2'/>
> > <target dev='vdb' bus='virtio'/>
> > <readonly/>
> > </disk>
> > --
> > 1.7.0.7
> >
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