Hi Damjan, Well, with regards to upstreaming our PMD it is not as easy as it seems. The driver we have today is binary shipped and open-sourcing that is not just something you do over-night. We tried to upstream a PMD that would dlopen() our binary library and link into DPDK that way (this is what we have in the www.github.com/napatech/dpdk<http://www.github.com/napatech/dpdk> today). This approach was rejected by DPDK and even though they might have opened up for the discussion again, we have not pursued it yet.
Another issue we have with the way our NICs work is that all ports on the card share the same PCI BUS-ID, so that's why we don't easily work out-of-the-box unless some small tweaks are made. Part of the reason for me investigating in different DPDK apps is to figure our how we can make a generic way of getting the shared-bus-id to work. Thanks, Michael From: Damjan Marion <dmarion.li...@gmail.com> Sent: 27. maj 2018 11:42 To: Michael Lilja <m...@napatech.com> Cc: Catalin Fierut <catalin.fie...@gmail.com>; vpp-dev@lists.fd.io Subject: Re: [vpp-dev] vpp with dpdk shared library Dear Michael, interesting work. Do you plan to upstream your PMD to DPDK mainline? Thanks, -- Damjan On 25 May 2018, at 10:50, Michael Lilja <m...@napatech.com<mailto:m...@napatech.com>> wrote: Hi, I had to use another DPDK source base also as shared library, so I went though a few trails before I got things to work. I have documented my quirks here: https://www.napatech.com/vpp-200g-nic/ I hope it is helpful. /Michael From: vpp-dev@lists.fd.io<mailto:vpp-dev@lists.fd.io> <vpp-dev@lists.fd.io<mailto:vpp-dev@lists.fd.io>> On Behalf Of Catalin Fierut Sent: 24. maj 2018 13:55 To: vpp-dev@lists.fd.io<mailto:vpp-dev@lists.fd.io> Subject: [vpp-dev] vpp with dpdk shared library Hello vpp, I'm trying to run vpp with external dpdk. I compiled dpdk with support of shared library in order to have support for collectd. I made changes in vpp.mk<http://vpp.mk/> in order to enable the usage of external dpdk already installed and support for shared library inside vpp. The build passed successfully, but when I'm runing the vpp binary it crashes in init.c from vpp/src/plugins/dpdk/devices in dpdk_config function. The reason why is crashing is the fact that is not loading the rte_mempool_ring.so file from dpdk. which by the way exist. This file is responsible with the initialization of structures ops_sp_sc, ops_mp_sc, ops_sp_mc, ops_mp_mc, basically ops=NULL. When I let vpp to use the dpdk deb files all runs ok, and the references to dpdk structures are present in the dpdk_plugin.so file. In this working way vpp is using dpdk library statically. I was expected base on dpdk.am<http://dpdk.am/> that on shared library branch dpdk_pluging to be build based on dpdk dynamic library info. Is any way to run vpp with shared library support? Any idea why the responsible library is not loaded? BR/ Catalin
