Failing to parse pci device

Failing to parse pci device

[David Aldrich]

Hi
I am trying to build a legacy application with DPDK 19.11.14. It links
successfully but fails to parse the whitelisted pci device at runtime:

EAL parameters: phy_app --proc-type=primary --file-prefix wls -w 0000:43:00.1
EAL: Detected 64 lcore(s)
EAL: Detected 1 NUMA nodes
EAL: failed to parse device "0000:43:00.1"
EAL: Unable to parse device '0000:43:00.1'

I think this suggests that the rte_bus_pci library is not loaded?

I suspect my linker command is incorrect. I am using CMake and I
detect the dpdk install using pkg-config. My linker directive is:

target_link_libraries(testApp PRIVATE
    -Wl,--start-group
    -lpthread
    -lrt
    -lhugetlbfs
    -Wl,-lm
    -Wl,-lnuma
    -L${WLS_LIB_PATH}
    -lwls
    -L${_dpdk_lib_path}
    -Wl,--whole-archive
    ${DPDK_STATIC_LDFLAGS}   # DPDK libraries - static linking
    -Wl,--no-whole-archive
    -Wl,--end-group
)

I don't understand well the linker directives such as 'start-group'
and 'whole-archive'.  Please could someone review the
target_link_libraries directive above and suggest what may be wrong?

I should mention that the DPDK 23.11 driver is running on the target
server, but I get a similar parse error if I build with DPDK 23.11.

Re: Failing to parse pci device

[David Aldrich]

I should have mentioned that the actual, expanded linker command is:

/usr/bin/cc -g  <snip> -Wl,--start-group  -lpthread  -lrt  -lhugetlbfs
 -Wl,-lm  -Wl,-lnuma  -L<snip>/wls_lib  -lwls
-L/opt/dpdk/dpdk-stable-19.11.14/x86_64-native-linux-gcc/lib/x86_64-linux-gnu/
 -Wl,--whole-archive  -L/lib/x86_64-linux-gnu  -lrte_bpf
-lrte_flow_classify  -lrte_pipeline  -lrte_table  -lrte_port
-lrte_fib  -lrte_ipsec  -lrte_vhost  -lrte_stack  -lrte_security
-lrte_sched  -lrte_reorder  -lrte_rib  -lrte_rcu  -lrte_rawdev
-lrte_pdump  -lrte_power  -lrte_member  -lrte_lpm  -lrte_latencystats
-lrte_kni  -lrte_jobstats  -lrte_ip_frag  -lrte_gso  -lrte_gro
-lrte_eventdev  -lrte_efd  -lrte_distributor  -lrte_cryptodev
-lrte_compressdev  -lrte_cfgfile  -lrte_bitratestats  -lrte_bbdev
-lrte_acl  -lrte_timer  -lrte_hash  -lrte_metrics  -lrte_cmdline
-lrte_pci  -lrte_ethdev  -lrte_meter  -lrte_net  -lrte_mbuf
-lrte_mempool  -lrte_ring  -lrte_eal  -lrte_kvargs
-Wl,--whole-archive  -L/lib/x86_64-linux-gnu  -lrte_common_cpt
-lrte_common_dpaax  -lrte_common_octeontx  -lrte_common_octeontx2
-lrte_bus_dpaa  -lrte_bus_fslmc  -lrte_bus_ifpga  -lrte_bus_pci
-lrte_bus_vdev  -lrte_bus_vmbus  -lrte_mempool_bucket
-lrte_mempool_dpaa  -lrte_mempool_dpaa2  -lrte_mempool_octeontx
-lrte_mempool_octeontx2  -lrte_mempool_ring  -lrte_mempool_stack
-lrte_pmd_af_packet  -lrte_pmd_ark  -lrte_pmd_atlantic  -lrte_pmd_avp
-lrte_pmd_axgbe  -lrte_pmd_bond  -lrte_pmd_bnx2x  -lrte_pmd_bnxt
-lrte_pmd_cxgbe  -lrte_pmd_dpaa  -lrte_pmd_dpaa2  -lrte_pmd_e1000
-lrte_pmd_ena  -lrte_pmd_enetc  -lrte_pmd_enic  -lrte_pmd_failsafe
-lrte_pmd_fm10k  -lrte_pmd_i40e  -lrte_pmd_hinic  -lrte_pmd_hns3
-lrte_pmd_iavf  -lrte_pmd_ice  -lrte_pmd_ifc  -lrte_pmd_ixgbe
-lrte_pmd_kni  -lrte_pmd_liquidio  -lrte_pmd_memif  -lrte_pmd_netvsc
-lrte_pmd_nfp  -lrte_pmd_null  -lrte_pmd_octeontx  -lrte_pmd_octeontx2
 -lrte_pmd_pfe  -lrte_pmd_qede  -lrte_pmd_ring  -lrte_pmd_sfc
-lrte_pmd_softnic  -lrte_pmd_tap  -lrte_pmd_thunderx
-lrte_pmd_vdev_netvsc  -lrte_pmd_vhost  -lrte_pmd_virtio
-lrte_pmd_vmxnet3  -lrte_rawdev_dpaa2_cmdif  -lrte_rawdev_dpaa2_qdma
-lrte_rawdev_ioat  -lrte_rawdev_ntb  -lrte_rawdev_octeontx2_dma
-lrte_rawdev_skeleton  -lrte_pmd_caam_jr  -lrte_pmd_dpaa_sec
-lrte_pmd_dpaa2_sec  -lrte_pmd_nitrox  -lrte_pmd_null_crypto
-lrte_pmd_octeontx_crypto  -lrte_pmd_octeontx2_crypto
-lrte_pmd_crypto_scheduler  -lrte_pmd_virtio_crypto
-lrte_pmd_octeontx_compress  -lrte_pmd_qat  -lrte_pmd_zlib
-lrte_pmd_dpaa_event  -lrte_pmd_dpaa2_event  -lrte_pmd_octeontx2_event
 -lrte_pmd_opdl_event  -lrte_pmd_skeleton_event  -lrte_pmd_sw_event
-lrte_pmd_dsw_event  -lrte_pmd_octeontx_event  -lrte_pmd_bbdev_null
-lrte_pmd_bbdev_turbo_sw  -lrte_pmd_bbdev_fpga_lte_fec
-Wl,--no-whole-archive  -Wl,--export-dynamic  -lrte_bpf
-lrte_flow_classify  -lrte_pipeline  -lrte_table  -lrte_port
-lrte_fib  -lrte_ipsec  -lrte_vhost  -lrte_stack  -lrte_security
-lrte_sched  -lrte_reorder  -lrte_rib  -lrte_rcu  -lrte_rawdev
-lrte_pdump  -lrte_power  -lrte_member  -lrte_lpm  -lrte_latencystats
-lrte_kni  -lrte_jobstats  -lrte_ip_frag  -lrte_gso  -lrte_gro
-lrte_eventdev  -lrte_efd  -lrte_distributor  -lrte_cryptodev
-lrte_compressdev  -lrte_cfgfile  -lrte_bitratestats  -lrte_bbdev
-lrte_acl  -lrte_timer  -lrte_hash  -lrte_metrics  -lrte_cmdline
-lrte_pci  -lrte_ethdev  -lrte_meter  -lrte_net  -lrte_mbuf
-lrte_mempool  -lrte_ring  -lrte_eal  -lrte_kvargs  -Wl,-Bdynamic
-pthread  -lm  -ldl  -lnuma  -L/usr/lib/x86_64-linux-gnu
-L/usr/lib/x86_64-linux-gnu  -lz  -lelf  -L/usr/lib/x86_64-linux-gnu
-L/usr/lib/x86_64-linux-gnu  -lz  -Wl,--no-whole-archive
-Wl,--end-group  -lrte_common_cpt  -lrte_common_dpaax
-lrte_common_octeontx  -lrte_common_octeontx2  -lrte_bus_dpaa
-lrte_bus_fslmc  -lrte_bus_ifpga  -lrte_bus_pci  -lrte_bus_vdev
-lrte_bus_vmbus  -lrte_mempool_bucket  -lrte_mempool_dpaa
-lrte_mempool_dpaa2  -lrte_mempool_octeontx  -lrte_mempool_octeontx2
-lrte_mempool_ring  -lrte_mempool_stack  -lrte_pmd_af_packet
-lrte_pmd_ark  -lrte_pmd_atlantic  -lrte_pmd_avp  -lrte_pmd_axgbe
-lrte_pmd_bond  -lrte_pmd_bnx2x  -lrte_pmd_bnxt  -lrte_pmd_cxgbe
-lrte_pmd_dpaa  -lrte_pmd_dpaa2  -lrte_pmd_e1000  -lrte_pmd_ena
-lrte_pmd_enetc  -lrte_pmd_enic  -lrte_pmd_failsafe  -lrte_pmd_fm10k
-lrte_pmd_i40e  -lrte_pmd_hinic  -lrte_pmd_hns3  -lrte_pmd_iavf
-lrte_pmd_ice  -lrte_pmd_ifc  -lrte_pmd_ixgbe  -lrte_pmd_kni
-lrte_pmd_liquidio  -lrte_pmd_memif  -lrte_pmd_netvsc  -lrte_pmd_nfp
-lrte_pmd_null  -lrte_pmd_octeontx  -lrte_pmd_octeontx2  -lrte_pmd_pfe
 -lrte_pmd_qede  -lrte_pmd_ring  -lrte_pmd_sfc  -lrte_pmd_softnic
-lrte_pmd_tap  -lrte_pmd_thunderx  -lrte_pmd_vdev_netvsc
-lrte_pmd_vhost  -lrte_pmd_virtio  -lrte_pmd_vmxnet3
-lrte_rawdev_dpaa2_cmdif  -lrte_rawdev_dpaa2_qdma  -lrte_rawdev_ioat
-lrte_rawdev_ntb  -lrte_rawdev_octeontx2_dma  -lrte_rawdev_skeleton
-lrte_pmd_caam_jr  -lrte_pmd_dpaa_sec  -lrte_pmd_dpaa2_sec
-lrte_pmd_nitrox  -lrte_pmd_null_crypto  -lrte_pmd_octeontx_crypto
-lrte_pmd_octeontx2_crypto  -lrte_pmd_crypto_scheduler
-lrte_pmd_virtio_crypto  -lrte_pmd_octeontx_compress  -lrte_pmd_qat
-lrte_pmd_zlib  -lrte_pmd_dpaa_event  -lrte_pmd_dpaa2_event
-lrte_pmd_octeontx2_event  -lrte_pmd_opdl_event
-lrte_pmd_skeleton_event  -lrte_pmd_sw_event  -lrte_pmd_dsw_event
-lrte_pmd_octeontx_event  -lrte_pmd_bbdev_null
-lrte_pmd_bbdev_turbo_sw  -lrte_pmd_bbdev_fpga_lte_fec  -lm  -ldl
-lnuma  -lz  -lelf  -lz  -lelf && :

On Tue, Apr 8, 2025 at 5:34 PM David Aldrich
<david.aldrich.ntml@gmail.com> wrote:
>
> Hi
> I am trying to build a legacy application with DPDK 19.11.14. It links
> successfully but fails to parse the whitelisted pci device at runtime:
>
> EAL parameters: phy_app --proc-type=primary --file-prefix wls -w 0000:43:00.1
> EAL: Detected 64 lcore(s)
> EAL: Detected 1 NUMA nodes
> EAL: failed to parse device "0000:43:00.1"
> EAL: Unable to parse device '0000:43:00.1'
>
> I think this suggests that the rte_bus_pci library is not loaded?
>
> I suspect my linker command is incorrect. I am using CMake and I
> detect the dpdk install using pkg-config. My linker directive is:
>
> target_link_libraries(testApp PRIVATE
>     -Wl,--start-group
>     -lpthread
>     -lrt
>     -lhugetlbfs
>     -Wl,-lm
>     -Wl,-lnuma
>     -L${WLS_LIB_PATH}
>     -lwls
>     -L${_dpdk_lib_path}
>     -Wl,--whole-archive
>     ${DPDK_STATIC_LDFLAGS}   # DPDK libraries - static linking
>     -Wl,--no-whole-archive
>     -Wl,--end-group
> )
>
> I don't understand well the linker directives such as 'start-group'
> and 'whole-archive'.  Please could someone review the
> target_link_libraries directive above and suggest what may be wrong?
>
> I should mention that the DPDK 23.11 driver is running on the target
> server, but I get a similar parse error if I build with DPDK 23.11.

Re: Failing to parse pci device

[David Aldrich]

This is now fixed. The problem was a driver version mismatch.