Hello Jim, Thanks for your mail. In order for us to have a better resolution please send a mail to our support team - supp...@mellanox.com Please provide as much info about the setup, configuration etc as you can.
In parallel, I added Erez Ferber here to assist. Regards, Asaf Penso > -----Original Message----- > From: users <users-boun...@dpdk.org> On Behalf Of Jim Vaigl > Sent: Tuesday, September 24, 2019 10:11 PM > To: 'Stephen Hemminger' <step...@networkplumber.org> > Cc: users@dpdk.org > Subject: Re: [dpdk-users] DPDK on Mellanox BlueField Ref Platform > > On Tue, 24 Sep 2019 12:31:51 -0400 > "Jim Vaigl" <j...@rockbridgesoftware.com> wrote: > > >> Since no one has chimed in with any build/install/configure suggestion > for > >> the > >> BlueField, I've spent some time debugging and thought I'd share the > results. > >> Building the l3fwd example application and running it as the docs > suggest, > >> when > >> I try to send it UDP packets from another machine, it dumps core. > >> > >> Debugging a bit with gdb and printf, I can see that from inside > >> process_packet() > >> and processx4_step1() the calls to rte_pktmbuf_mtod() return Nil or > >> suspicious > >> pointer values (i.e. 0x80). The sample apps don't guard against NULL > >> pointers > >> being returned from this rte call, so that's why it's dumping core. > >> > >> I still think the problem is related to the driver config, but thought > this > >> might ring a bell for anyone who's had problems like this. > >> > >> The thing that still bothers me is that rather than seeing what I was > >> expecting > >> at init based on what the documentation shows: > >> [...] > >> EAL: probe driver: 15b3:1013 librte_pmd_mlx5 > >> > >> ... when rte_eal_init() runs, I'm seeing: > >> [...] > >> EAL: Selected IOVA mode 'PA' > >> EAL: Probing VFIO support... > >> > >> This still seems wrong, and I've verified that specifying the BlueField > >> target ID > >> string in the make is causing "CONFIG_RTE_LIBRTE_MLX5_PMD=y" to > appear in > >> the .config. > >> > >> Regards, > >> --Jim Vaigl > >> 614 886 5999 > >> > >> > > > >From: Stephen Hemminger [mailto:step...@networkplumber.org] > >Sent: Tuesday, September 24, 2019 1:18 PM > >To: Jim Vaigl > >Cc: users@dpdk.org > > > >Subject: Re: [dpdk-users] DPDK on Mellanox BlueField Ref Platform > >make sure you have latest version of rdma-core installed (v25). > >The right version is not in most distros > > Great suggestion. I'm using the rdma-core from the MLNX_OFED 4.6-3.5.8.0 > install. I can't figure out how to tell what version that thing includes, > even looking at the source, since there's no version information in the > source files, BUT I went to github and downloaded rdma-core v24 and v25 > and neither diff cleanly with the source RPM that comes in the OFED > install. I don't know yet if it's because this is some different version > or if it's because Mellanox has made their own tweaks. > > I would hope that the very latest OFED from Mellanox would include an > up-to-date and working set of libs/modules, but maybe you're on to > something. It sounds like a risky move, but maybe I'll try just > installing rdma-core from github over top of the OFED install. I have a > fear that I'll end up with inconsistent versions, but it's worth a try. > > Thanks, > --Jim > >
