Re: [dpdk-users] Building mlx5 with rdma-core/OFED

[Gerry Wan <gerryw@stanford.edu>]

I was able to get things to work with rdma-core by completely deleting my
DPDK build directory and building from scratch, not just clean.

The latest OFED (5.4) also works with kernel 5.4.0-80-generic, in case
others are also having similar issues and cannot use rdma-core.

On Tue, Aug 3, 2021 at 7:24 AM PATRICK KEROULAS <
patrick.keroulas@radio-canada.ca> wrote:

> Have you checked that:
> - the missing symbols like `mlx5dv_dr_action_create_default_miss` are
> defined in mlx5dv.h?
> - there is no other mlx5dv.h from previous version installed somewhere?
>
> I recommend to keep the package versions provided for your distro and
> downgrade dpdk if necessary.
>
>
> On Mon, Aug 2, 2021 at 4:18 PM Gerry Wan <gerryw@stanford.edu> wrote:
> >
> > I am running Ubuntu 20.04, and the mlx5dv.h is indeed in
> `/usr/include/infiniband/`.
> >
> > The steps I take to build DPDK are
> > $ meson --prefix=$DPDK_PATH build
> > $ cd build
> > $ sudo ninja install  -> fails here
> > $ sudo ldconfig
> >
> > How can I install the correct versions of rdma-core and libibverbs?
> >
> > On Mon, Aug 2, 2021 at 12:59 PM PATRICK KEROULAS <
> patrick.keroulas@radio-canada.ca> wrote:
> >>
> >> I guess you're running Focal or Groovy release so rdma-core and
> libibverbs
> >> are >v28: https://launchpad.net/rdma-core
> >> For this version, your missing symbols are defined:
> >>
> https://github.com/linux-rdma/rdma-core/blob/stable-v28/providers/mlx5/mlx5dv.h
> >> I expect this header to be installed in `/usr/include/infiniband/`.
> >> Please verify.
> >>
> >> Maybe something wrong with ninja, try meson or make.
> >>
> >> On Mon, Aug 2, 2021 at 2:35 PM Gerry Wan <gerryw@stanford.edu> wrote:
> >> >
> >> > How did you install these packages? Are there extra environment
> variables I need to set?
> >> > After running the OFED uninstall script,
> >> >
> >> > apt-get install rdma-core
> >> > apt-get install libibverbs-dev
> >> >
> >> > both work fine, but ninja install now fails on
> >> >
> >> > [1/1756] Linking target drivers/librte_common_mlx5.so.21.1.
> >> > FAILED: drivers/librte_common_mlx5.so.21.1
> >> > cc  -o drivers/librte_common_mlx5.so.21.1 'drivers/a715181@
> @rte_common_mlx5@sha/meson-generated_.._rte_common_mlx5.pmd.c.o'
> 'drivers/a715181@@tmp_rte_common_mlx5@sta/common_mlx5_mlx5_devx_cmds.c.o'
> 'drivers/a715181@@tmp_rte_common_mlx5@sta/common_mlx5_mlx5_common.c.o'
> 'drivers/a715181@@tmp_rte_common_mlx5@sta/common_mlx5_mlx5_common_mp.c.o'
> 'drivers/a715181@@tmp_rte_common_mlx5@sta/common_mlx5_mlx5_common_mr.c.o'
> 'drivers/a715181@@tmp_rte_common_mlx5@sta/common_mlx5_mlx5_malloc.c.o'
> 'drivers/a715181@@tmp_rte_common_mlx5@sta/common_mlx5_mlx5_common_pci.c.o'
> 'drivers/a715181@@tmp_rte_common_mlx5@sta/common_mlx5_mlx5_common_devx.c.o'
> 'drivers/a715181@@tmp_rte_common_mlx5@sta/common_mlx5_linux_mlx5_nl.c.o'
> 'drivers/a715181@@tmp_rte_common_mlx5@sta/common_mlx5_linux_mlx5_common_os.c.o'
> 'drivers/a715181@@tmp_rte_common_mlx5@sta/common_mlx5_linux_mlx5_common_verbs.c.o'
> 'drivers/a715181@@tmp_rte_common_mlx5@sta/common_mlx5_linux_mlx5_glue.c.o'
> -Wl,--as-needed -Wl,--no-undefined -Wl,-O1 -shared -fPIC -Wl,--start-group
> -Wl,-soname,librte_common_mlx5.so.21 -Wl,--no-as-needed -pthread -lm -ldl
> -lnuma lib/librte_hash.so.21.1 lib/librte_eal.so.21.1
> lib/librte_kvargs.so.21.1 lib/librte_telemetry.so.21.1
> lib/librte_ring.so.21.1 lib/librte_rcu.so.21.1 lib/librte_pci.so.21.1
> drivers/librte_bus_pci.so.21.1 lib/librte_net.so.21.1
> lib/librte_mbuf.so.21.1 lib/librte_mempool.so.21.1
> -Wl,--version-script=/home/gerryw/dpdk/dpdk-21.02/drivers/common/mlx5/version.map
> /usr/lib/x86_64-linux-gnu/libmlx5.so
> /usr/lib/x86_64-linux-gnu/libibverbs.so -Wl,--end-group
> '-Wl,-rpath,$ORIGIN/../lib:$ORIGIN/'
> -Wl,-rpath-link,/home/gerryw/dpdk/dpdk-21.02/build/lib
> -Wl,-rpath-link,/home/gerryw/dpdk/dpdk-21.02/build/drivers
> >> > /usr/bin/ld: drivers/a715181@@tmp_rte_common_mlx5@sta/common_mlx5_linux_mlx5_glue.c.o:
> in function `mlx5_glue_dv_create_flow_action_aso':
> >> > mlx5_glue.c:(.text+0x21f): undefined reference to
> `mlx5dv_dr_action_create_aso'
> >> > /usr/bin/ld: drivers/a715181@@tmp_rte_common_mlx5@sta/common_mlx5_linux_mlx5_glue.c.o:
> in function `mlx5_glue_dr_action_create_dest_array':
> >> > mlx5_glue.c:(.text+0x23b): undefined reference to
> `mlx5dv_dr_action_create_dest_array'
> >> > /usr/bin/ld: drivers/a715181@@tmp_rte_common_mlx5@sta/common_mlx5_linux_mlx5_glue.c.o:
> in function `mlx5_glue_dr_create_flow_action_sampler':
> >> > mlx5_glue.c:(.text+0x25b): undefined reference to
> `mlx5dv_dr_action_create_flow_sampler'
> >> > /usr/bin/ld: drivers/a715181@@tmp_rte_common_mlx5@sta/common_mlx5_linux_mlx5_glue.c.o:
> in function `mlx5_glue_dv_alloc_pp':
> >> > mlx5_glue.c:(.text+0x28b): undefined reference to `mlx5dv_pp_alloc'
> >> > /usr/bin/ld: drivers/a715181@@tmp_rte_common_mlx5@sta/common_mlx5_linux_mlx5_glue.c.o:
> in function `mlx5_glue_dr_create_flow_action_default_miss':
> >> > mlx5_glue.c:(.text+0x4bb): undefined reference to
> `mlx5dv_dr_action_create_default_miss'
> >> > /usr/bin/ld: drivers/a715181@@tmp_rte_common_mlx5@sta/common_mlx5_linux_mlx5_glue.c.o:
> in function `mlx5_glue_dv_free_pp':
> >> > mlx5_glue.c:(.text+0x277): undefined reference to `mlx5dv_pp_free'
> >> > /usr/bin/ld: drivers/a715181@@tmp_rte_common_mlx5@sta/common_mlx5_linux_mlx5_glue.c.o:
> in function `mlx5_glue_dr_reclaim_domain_memory':
> >> > mlx5_glue.c:(.text+0x2a7): undefined reference to
> `mlx5dv_dr_domain_set_reclaim_device_memory'
> >> > /usr/bin/ld: drivers/a715181@@tmp_rte_common_mlx5@sta/common_mlx5_linux_mlx5_glue.c.o:
> in function `mlx5_glue_devx_port_query':
> >> > mlx5_glue.c:(.text+0x325): undefined reference to
> `mlx5dv_query_devx_port'
> >> > /usr/bin/ld: drivers/a715181@@tmp_rte_common_mlx5@sta/common_mlx5_linux_mlx5_glue.c.o:
> in function `mlx5_glue_dv_create_flow_action_dest_devx_tir':
> >> > mlx5_glue.c:(.text+0x545): undefined reference to
> `mlx5dv_dr_action_create_dest_devx_tir'
> >> > /usr/bin/ld: drivers/a715181@@tmp_rte_common_mlx5@sta/common_mlx5_linux_mlx5_glue.c.o:
> in function `mlx5_glue_dr_create_flow_action_pop_vlan':
> >> > mlx5_glue.c:(.text+0x655): undefined reference to
> `mlx5dv_dr_action_create_pop_vlan'
> >> > /usr/bin/ld: drivers/a715181@@tmp_rte_common_mlx5@sta/common_mlx5_linux_mlx5_glue.c.o:
> in function `mlx5_glue_dr_create_flow_action_push_vlan':
> >> > mlx5_glue.c:(.text+0x665): undefined reference to
> `mlx5dv_dr_action_create_push_vlan'
> >> > /usr/bin/ld: drivers/a715181@@tmp_rte_common_mlx5@sta/common_mlx5_linux_mlx5_glue.c.o:
> in function `mlx5_glue_dr_create_flow_action_dest_port':
> >> > mlx5_glue.c:(.text+0x685): undefined reference to
> `mlx5dv_dr_action_create_dest_ib_port'
> >> > collect2: error: ld returned 1 exit status
> >> > [2/1756] Compiling C object 'drivers/a715181@
> @tmp_rte_mempool_octeontx@sta/mempool_octeontx_octeontx_fpavf.c.o'.
> >> > ninja: build stopped: subcommand failed.
> >> >
> >> >
> >> > On Mon, Aug 2, 2021 at 6:24 AM PATRICK KEROULAS <
> patrick.keroulas@radio-canada.ca> wrote:
> >> >>
> >> >>
> >> >> Hello Gerry,
> >> >> I went through this a while ago and had to properly remove
> everything related
> >> >> to OFED with the uninstaller. Then, install rdma-core and
> libibverbs-dev which
> >> >> includes infiniband/mlx5dv.h IIRC.
> >> >> Regards,
> >> >> Patrick
> >> >>
> >> >> On Sun, Aug 1, 2021 at 8:23 PM Gerry Wan <gerryw@stanford.edu>
> wrote:
> >> >>>
> >> >>> I recently tried to reinstall MLX OFED 5.2-2.2.0.0 on my bare metal
> machine
> >> >>> Ubuntu 20.04 (previously using the command ./mlnxofedinstall --dpdk
> >> >>> --upstream-libs --with-mft --with-kernel-mft). However, it now
> fails with
> >> >>> the message
> >> >>>
> >> >>> Checking SW Requirements...
> >> >>> Removing old packages...
> >> >>> Uninstalling the previous version of MLNX_OFED_LINUX
> >> >>> Installing new packages Installing mft-4.16.1...
> >> >>> Installing ofed-scripts-5.2...
> >> >>> Installing mstflint-4.15.0...
> >> >>> Installing mlnx-ofed-kernel-utils-5.2...
> >> >>> Installing mlnx-ofed-kernel-dkms-5.2...
> >> >>> Failed to install mlnx-ofed-kernel-dkms DEB
> >> >>> Collecting debug info...
> >> >>> See
> /tmp/MLNX_OFED_LINUX.9221.logs/mlnx-ofed-kernel-dkms.debinstall.log
> >> >>>
> >> >>> It appears that my kernel version got upgraded to 5.4.0-80-generic
> which I
> >> >>> think may be the issue. I've also tried to install using
> >> >>> --add-kernel-support --kernel 5.4.0-80-generic, with no luck.
> >> >>>
> >> >>> The DPDK website says that rdma-core is now recommended over OFED,
> but the
> >> >>> documentation for how to use it isn't very clear to me. I've tried
> to
> >> >>> install it via
> >> >>>
> >> >>> apt-get install rdma-core
> >> >>>
> >> >>> as well as running the quick start script listed here:
> >> >>> https://github.com/linux-rdma/rdma-core, but DPDK installation
> still fails
> >> >>> with
> >> >>>
> >> >>> ../drivers/common/mlx5/linux/mlx5_glue.h:15:10: fatal error:
> >> >>> infiniband/mlx5dv.h: No such file or directory
> >> >>> 15 | #include <infiniband/mlx5dv.h>
> >> >>>
> >> >>> Any advice on getting the mlx5 drivers to work again would be
> helpful!
> >>
>
>