Hi Ghada, Happy New Year! With the patch disabled, ovs/dpdk could pass build in CentOS 7.6 now. Here is the patch in review: https://review.openstack.org/627749 I plan to upgrade mellanox driver itself to 4.5-1.0.1.0, in order to fix the driver build failure. Then after OVS/DPDK new release upgrade, mellanox adapter will be supported again. Feel free to contact me if you have any question on it. Thanks. Best Regards Shuicheng -----Original Message----- From: Khalil, Ghada [mailto:Ghada.Khalil@windriver.com] Sent: Saturday, December 22, 2018 5:22 AM To: Lin, Shuicheng <shuicheng.lin@intel.com>; starlingx-discuss@lists.starlingx.io Subject: RE: Kernel upgrade status & DPDK need be upgraded Hi Shuicheng, As discussed in the networking meeting yesterday, please apply a patch to the CentOS 7.6 feature branch to disable the mellanox drivers temporarily in the openvswitch package: This is the explicit patch in STX that enables it currently: https://github.com/openstack/stx-integ/blob/master/networking/openvswitch/ce... Please see if this addresses the compile issues you are facing. The longer term plan will be to upgrade to a new version of openvswitch which has support for DPDK 18.11. Looking at the ovs releases, it seems that the next major release is planned for mid-February. http://docs.openvswitch.org/en/latest/internals/release-process/#release-sch... Please note that my team is out of the office until Jan 2. If you need help before then, please contact Forrest. Regards, Ghada -----Original Message----- From: Khalil, Ghada Sent: Monday, December 17, 2018 11:38 AM To: 'Lin, Shuicheng'; starlingx-discuss@lists.starlingx.io Subject: RE: Kernel upgrade status & DPDK need be upgraded Hi Shuicheng, You are correct. The Mellanox drivers are tied to DPDK as well as the kernel. At a high level, I see no option, but to upgrade DPDK/OVS to 18.11 to align with the newer kernel and mellanox drivers. Is there a version available for ovs/ovs-dpdk that supports 18.11 yet? If not, is there information on when one would be available? I added this as an agenda item in the next networking team meeting on Dec 20 at 9:15am Eastern Time. https://etherpad.openstack.org/p/stx-networking We will discuss this in more detail then. Feel free to join us. Zoom details are on the wiki: https://wiki.openstack.org/wiki/Starlingx/Meetings#0615am_PDT_.2F_1415_UTC_-... Regards, Ghada -------------- From: Lin, Shuicheng [mailto:shuicheng.lin@intel.com] Sent: Sunday, December 16, 2018 7:55 PM To: starlingx-discuss@lists.starlingx.io Subject: [Starlingx-discuss] Kernel upgrade status & DPDK need be upgraded Hi all, We are working on kernel upgrade task recently [0]. After upgrade the kernel, we find several modules cannot pass build, due to data structure/function api change in kernel. Here is the module list cannot pass build with the new kernel: Mlnx-ofa_kernel Intel-i40e Intel-i40evf Tpmdd Intel-ixgbe drbd openvswitch To fix the build failure, I plan to upgrade these packages to newer version, which supports CentOS 7.6. This upgrade may cause other packages depend on these packages be upgraded also. Take Mlnx-ofa as example, it is bound with DPDK. Per [1], MLNX_OFED 4.5-1.0.1.0 supports CentOS 7.6. Per [2], DPDK should be upgraded to 18.11, while our current DPDK is 17.11, and is bound with OVS. And OVS upgrade may affect Neutron. I need network team to help decide the upgrade strategy of DPDK/OVS. Thanks. [0]: https://storyboard.openstack.org/#!/story/2004521 [1]: http://www.mellanox.com/page/products_dyn?product_family=26&mtag=linux_sw_drivers [2]: https://doc.dpdk.org/guides-18.11/rel_notes/release_18_11.html Best Regards Shuicheng