[ovs-dev] [PATCH v1] docs: Use DPDK 16.11.2 stable release.
Kavanagh, Mark B
mark.b.kavanagh at intel.com
Wed Jul 5 15:15:48 UTC 2017
>From: ovs-dev-bounces at openvswitch.org [mailto:ovs-dev-bounces at openvswitch.org]
>On Behalf Of Stokes, Ian
>Sent: Tuesday, July 4, 2017 10:09 AM
>To: Darrell Ball <dball at vmware.com>; dev at openvswitch.org
>Subject: Re: [ovs-dev] [PATCH v1] docs: Use DPDK 16.11.2 stable release.
>
>> 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.
+1 on this - I've handled similar OvS 'bugs' where the root-cause was a DPDK issue that had already been resolved on the DPDK stable branch.
I can't recommend strongly enough that we move to the 16.11.2 branch for OvS 2.7.1 (stable branch + stable branch = fewer bugs all 'round).
Thanks,
Mark
>
>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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>> > dev at openvswitch.org
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>
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