May be a good time to consider moving to rdma/native implementation. What are the gaps for you?
— Damjan > On 02.10.2020., at 19:01, Christian Hopps <cho...@chopps.org> wrote: > > FWIW, I got this building and running; however, since the bump to 20.08 > VPP+DPDK no longer finds the mlx5 interfaces. > > 2020/10/02 16:58:53:176 warn dpdk EAL init args: -c 3f -n 4 > --in-memory --file-prefix vpp -w 0000:21:00.1 -w 0000:21:00.0 --master-lcore 0 > 2020/10/02 16:58:53:508 notice dpdk DPDK drivers found no > Ethernet devices... > > Those devices are found when dpdk 20.05 is used instead. > >> On Oct 2, 2020, at 12:21 PM, Matthew Smith via lists.fd.io >> <http://lists.fd.io/> <mgsmith=netgate....@lists.fd.io >> <mailto:mgsmith=netgate....@lists.fd.io>> wrote: >> >> Hi Mohammed, >> >> I think it will only affect builds where DPDK_MLX5_PMD=y is set, but I >> cannot say for sure. The scripts/configurations I build with always set that >> flag, so I have not tried to generate a build without it set recently. >> >> -Matt >> >> >> On Fri, Oct 2, 2020 at 12:57 AM Mohammed HAWARI <momohaw...@gmail.com >> <mailto:momohaw...@gmail.com>> wrote: >> Hello Chris, Matthew, >> >> Thanks for raising that issue. Just to be clear and better understand, does >> the problem occur with the default config, i.e., without trying to compile >> any MLX driver in DPDK? Or does it only appear when setting DPDK_MLX5_PMD=y ? >> Thanks >> Best regards >> Mohammed >>> On 1 Oct 2020, at 22:33, Matthew Smith via lists.fd.io >>> <http://lists.fd.io/> <mgsmith=netgate....@lists.fd.io >>> <mailto:mgsmith=netgate....@lists.fd.io>> wrote: >>> >>> Hi Chris, >>> >>> I did this in my local build: >>> >>> diff --git a/build/external/packages/dpdk.mk <http://dpdk.mk/> >>> b/build/external/packages/dpdk.mk <http://dpdk.mk/> >>> index 49761cd56..a30ffd2ac 100644 >>> --- a/build/external/packages/dpdk.mk <http://dpdk.mk/> >>> +++ b/build/external/packages/dpdk.mk <http://dpdk.mk/> >>> @@ -139,6 +139,7 @@ DPDK_MESON_ARGS = \ >>> -Dtests=false \ >>> "-Ddisable_drivers=$(DPDK_DRIVERS_DISABLED)" \ >>> "-Ddisable_libs=$(DPDK_LIBS_DISABLED)" \ >>> + -Dibverbs_link=dlopen \ >>> -Db_pie=true \ >>> -Dmachine=$(DPDK_MACHINE) \ >>> --buildtype=$(DPDK_BUILD_TYPE) >>> >>> If I try to submit it upstream, I would probably do something nicer using a >>> DPDK_<something> environment variable, but for the moment this got me past >>> that error. I have not actually tested with an mlx5 device yet, so I don't >>> know if something additional will be required in order to forward packets >>> via an mlx5 NIC, but it did fix the error you pasted and allow >>> dpdk_plugin.so to be loaded. >>> >>> -Matt >>> >>> >>> On Thu, Oct 1, 2020 at 2:10 PM Christian Hopps <cho...@chopps.org >>> <mailto:cho...@chopps.org>> wrote: >>> I've rebased my local branch on the latest master and dpdk is failing to >>> load now b/c >>> >>> 2020/10/01 18:31:54:514 err plugin/load >>> /home/chopps/w/vpp/build-root/install-vpp-native/vpp/lib/vpp_plugins/dpdk_plugin.so: >>> undefined symbol: ibv_fork_init >>> >>> I noticed that the dpdk build system has been changed is there something I >>> need to do to get it to link properly with the required libraries now? >>> >>> I did change "n" in >>> >>> DPDK_MLX5_PMD ?= n >>> DPDK_MLX5_COMMON_PMD ?= n >>> >>> to "y" to try and get MLX5 PMD to build. >>> >>> I also added >>> >>> vpp_uses_dpdk_mlx5_pmd = yes >>> >>> to build-data/platforms/vpp.mk <http://vpp.mk/> >>> >>> I also tried adding: >>> >>> vpp_uses_dpdk_ibverbs_link_dlopen = yes >>> >>> which didn't fix the problem. >>> >>> Any suggestions on how to fix this? >>> >>> Thanks, >>> Chris. >>> >>> >>> >>> >> >> > > > >
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