> On Oct 2, 2020, at 1:07 PM, Damjan Marion via lists.fd.io > <dmarion=me....@lists.fd.io> wrote: > > > May be a good time to consider moving to rdma/native implementation. > What are the gaps for you?
We have some conditional chained decap code based on the underlying dpdk mbufs to do buffer indirection -- it's not overly pretty but it works :) Also, although we haven't tested with it yet, we want to use async crypto offload, and once we pay the mbuf penalty for that ... *shrug* When using copy (rather than chain) and inline crypto, native drivers are an option. Thanks, Chris. > > > — > Damjan > >> On 02.10.2020., at 19:01, Christian Hopps <cho...@chopps.org >> <mailto: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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