[ovs-dev] build: check libibverbs deps before linking with dpdk

When I build ovs-dpdk without mlx4/mlx5 driver, the configure log is as
follows:

checking for DPDK... yes
checking for faulty pkg-config version... no
checking for rte_config.h... yes
checking whether RTE_LIBRTE_VHOST_NUMA is declared... yes
checking for library containing get_mempolicy... -lnuma
checking whether RTE_EAL_NUMA_AWARE_HUGEPAGES is declared... yes
checking for library containing get_mempolicy... (cached) -lnuma
checking whether RTE_LIBRTE_PMD_PCAP is declared... yes
checking for library containing pcap_dump_close... -lpcap
checking whether RTE_LIBRTE_PMD_AF_XDP is declared... no
checking whether RTE_LIBRTE_VHOST_NUMA is declared... (cached) yes
checking whether RTE_LIBRTE_MLX5_PMD is declared... no
checking whether RTE_LIBRTE_MLX4_PMD is declared... no
checking for library containing dlopen... -ldl
checking whether linking with dpdk works... no
configure: error: Could not find DPDK library in default search path,
update PKG_CONFIG_PATH for pkg-config to find the .pc file in non-standard
location

The error log is puzzled because I indeed have configured PKG_CONFIG_PATH
in the right way. After checking the config.log we found libibverbs is
needed when linking with dpdk:

configure:31517: checking whether linking with dpdk works
configure:31533: gcc -o conftest -g -O2 -DHAVE_AVX512F -mno-avx512f
-I/usr/local/include -include rte_config.h -march=native -mno-avx512f
 conftest.c -Wl,--whole-archive -L/usr/local/lib64 -l:librte_common_cpt.a
-l:librte_common_dpaax.a -l:librte_common_iavf.a
-l:librte_common_octeontx.a -l:librte_common_octeontx2.a
-l:librte_common_sfc_efx.a -l:librte_bus_dpaa.a -l:librte_bus_fslmc.a
-l:librte_bus_ifpga.a -l:librte_bus_pci.a -l:librte_bus_vdev.a
-l:librte_bus_vmbus.a -l:librte_common_qat.a -l:librte_mempool_bucket.a
-l:librte_mempool_dpaa.a -l:librte_mempool_dpaa2.a
-l:librte_mempool_octeontx.a -l:librte_mempool_octeontx2.a
-l:librte_mempool_ring.a -l:librte_mempool_stack.a
-l:librte_net_af_packet.a -l:librte_net_ark.a -l:librte_net_atlantic.a
-l:librte_net_avp.a -l:librte_net_axgbe.a -l:librte_net_bond.a
-l:librte_net_bnx2x.a -l:librte_net_bnxt.a -l:librte_net_cxgbe.a
-l:librte_net_dpaa.a -l:librte_net_dpaa2.a -l:librte_net_e1000.a
-l:librte_net_ena.a -l:librte_net_enetc.a -l:librte_net_enic.a
-l:librte_net_failsafe.a -l:librte_net_fm10k.a -l:librte_net_i40e.a
-l:librte_net_hinic.a -l:librte_net_hns3.a -l:librte_net_iavf.a
-l:librte_net_ice.a -l:librte_net_igc.a -l:librte_net_ixgbe.a
-l:librte_net_kni.a -l:librte_net_liquidio.a -l:librte_net_memif.a
-l:librte_net_netvsc.a -l:librte_net_nfp.a -l:librte_net_null.a
-l:librte_net_octeontx.a -l:librte_net_octeontx2.a -l:librte_net_pcap.a
-l:librte_net_pfe.a -l:librte_net_qede.a -l:librte_net_ring.a
-l:librte_net_sfc.a -l:librte_net_softnic.a -l:librte_net_tap.a
-l:librte_net_thunderx.a -l:librte_net_txgbe.a -l:librte_net_vdev_netvsc.a
-l:librte_net_vhost.a -l:librte_net_virtio.a -l:librte_net_vmxnet3.a
-l:librte_raw_dpaa2_cmdif.a -l:librte_raw_dpaa2_qdma.a -l:librte_raw_ioat.a
-l:librte_raw_ntb.a -l:librte_raw_octeontx2_dma.a
-l:librte_raw_octeontx2_ep.a -l:librte_raw_skeleton.a
-l:librte_compress_octeontx.a -l:librte_compress_zlib.a
-l:librte_regex_octeontx2.a -l:librte_vdpa_ifc.a -l:librte_baseband_null.a
-l:librte_baseband_turbo_sw.a -l:librte_baseband_fpga_lte_fec.a
-l:librte_baseband_fpga_5gnr_fec.a -l:librte_baseband_acc100.a
-l:librte_node.a -l:librte_graph.a -l:librte_bpf.a
-l:librte_flow_classify.a -l:librte_pipeline.a -l:librte_table.a
-l:librte_port.a -l:librte_fib.a -l:librte_ipsec.a -l:librte_vhost.a
-l:librte_stack.a -l:librte_security.a -l:librte_sched.a
-l:librte_reorder.a -l:librte_rib.a -l:librte_regexdev.a -l:librte_rawdev.a
-l:librte_pdump.a -l:librte_power.a -l:librte_member.a -l:librte_lpm.a
-l:librte_latencystats.a -l:librte_kni.a -l:librte_jobstats.a
-l:librte_ip_frag.a -l:librte_gso.a -l:librte_gro.a -l:librte_eventdev.a
-l:librte_efd.a -l:librte_distributor.a -l:librte_cryptodev.a
-l:librte_compressdev.a -l:librte_cfgfile.a -l:librte_bitratestats.a
-l:librte_bbdev.a -l:librte_acl.a -l:librte_timer.a -l:librte_hash.a
-l:librte_metrics.a -l:librte_cmdline.a -l:librte_pci.a -l:librte_ethdev.a
-l:librte_meter.a -l:librte_net.a -l:librte_mbuf.a -l:librte_mempool.a
-l:librte_rcu.a -l:librte_ring.a -l:librte_eal.a -l:librte_telemetry.a
-l:librte_kvargs.a -Wl,--no-whole-archive -Wl,--export-dynamic
-Wl,--as-needed -lrte_node -lrte_graph -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_regexdev -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_rcu -lrte_ring
-lrte_eal -lrte_telemetry -lrte_kvargs -pthread -lm -ldl -lnuma -lz -lpcap
-libverbs  -ldl -lpcap -lnuma -lnuma -latomic -lpthread -lrt -lm  -lunbound
>&5
/usr/bin/ld: cannot find -libverbs
collect2: error: ld returned 1 exit status
configure:31533: $? = 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "openvswitch"
| #define PACKAGE_TARNAME "openvswitch"
| #define PACKAGE_VERSION "2.15.0"
| #define PACKAGE_STRING "openvswitch 2.15.0"
| #define PACKAGE_BUGREPORT "bugs@openvswitch.org"
| #define PACKAGE_URL ""
| #define PACKAGE "openvswitch"
| #define VERSION "2.15.0"
| #define STDC_HEADERS 1
| #define HAVE_SYS_TYPES_H 1
| #define HAVE_SYS_STAT_H 1
| #define HAVE_STDLIB_H 1
| #define HAVE_STRING_H 1
| #define HAVE_MEMORY_H 1
| #define HAVE_STRINGS_H 1
| #define HAVE_INTTYPES_H 1
| #define HAVE_STDINT_H 1
| #define HAVE_UNISTD_H 1
| #define __EXTENSIONS__ 1
| #define _ALL_SOURCE 1
| #define _GNU_SOURCE 1
| #define _POSIX_PTHREAD_SEMANTICS 1
| #define _TANDEM_SOURCE 1
| #define HAVE_DLFCN_H 1
| #define LT_OBJDIR ".libs/"
| #define HAVE_PTHREAD_SPIN_LOCK 1
| #define HAVE_DECL_STRERROR_R 1
| #define HAVE_STRERROR_R 1
| #define STRERROR_R_CHAR_P 1
| #define HAVE_NETLINK 1
| #define HAVE_OPENSSL 1
| #define OPENSSL_SUPPORTS_SNI 1
| #define HAVE_LIBCAPNG 1
| #define HAVE_DECL_SYS_SIGLIST 1
| #define HAVE_DECL_MALLOC_TRIM 1
| #define HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC 1
| #define HAVE_STRUCT_MMSGHDR_MSG_LEN 1
| #define HAVE_STRUCT_SOCKADDR_IN6_SIN6_SCOPE_ID 1
| #define HAVE_MLOCKALL 1
| #define HAVE_STRNLEN 1
| #define HAVE_GETLOADAVG 1
| #define HAVE_STATVFS 1
| #define HAVE_GETMNTENT_R 1
| #define HAVE_SENDMMSG 1
| #define HAVE_CLOCK_GETTIME 1
| #define HAVE_MNTENT_H 1
| #define HAVE_SYS_STATVFS_H 1
| #define HAVE_LINUX_TYPES_H 1
| #define HAVE_LINUX_IF_ETHER_H 1
| #define HAVE_LINUX_NET_NAMESPACE_H 1
| #define HAVE_STDATOMIC_H 1
| #define HAVE_BITS_FLOATN_COMMON_H 1
| #define HAVE_BACKTRACE 1
| #define HAVE_LINUX_PERF_EVENT_H 1
| #define HAVE_VALGRIND_VALGRIND_H 1
| #define HAVE_THREAD_LOCAL 1
| #define HAVE_GCC4_ATOMICS 1
| #define ATOMIC_ALWAYS_LOCK_FREE_1B 1
| #define ATOMIC_ALWAYS_LOCK_FREE_2B 1
| #define ATOMIC_ALWAYS_LOCK_FREE_4B 1
| #define ATOMIC_ALWAYS_LOCK_FREE_8B 1
| #define HAVE_GLIBC_PTHREAD_SETNAME_NP 1
| #define HAVE_CXX11 1
| #define HAVE_POSIX_MEMALIGN 1
| #define HAVE_UNBOUND 1
| #define HAVE_STDIO_H 1
| #define HAVE_STRING_H 1
| #define HAVE_NLA_BITFIELD32 1
| #define HAVE_TCA_ACT_FLAGS 1
| #define HAVE_STRUCT_TCF_T_FIRSTUSE 1
| #define HAVE_TCA_VLAN_PUSH_VLAN_PRIORITY 1
| #define HAVE_TCA_MPLS_TTL 1
| #define HAVE_TCA_TUNNEL_KEY_ENC_TTL 1
| #define HAVE_TCA_PEDIT_KEY_EX_HDR_TYPE_UDP 1
| #define HAVE_TCA_SKBEDIT_FLAGS 1
| #define HAVE_SCTP_CONNTRACK_HEARTBEATS 1
| #define HAVE_VIRTIO_TYPES 1
| #define HAVE_RTE_CONFIG_H 1
| #define HAVE_DECL_RTE_LIBRTE_VHOST_NUMA 1
| #define HAVE_DECL_RTE_EAL_NUMA_AWARE_HUGEPAGES 1
| #define VHOST_NUMA 1
| /* end confdefs.h.  */
| #include <rte_config.h>
|                         #include <rte_eal.h>
| int
| main ()
| {
| int rte_argc; char ** rte_argv;
|                         rte_eal_init(rte_argc, rte_argv);
|   ;
|   return 0;
| }
configure:31538: result: no
configure:31540: error: Could not find DPDK library in default search path,
update PKG_CONFIG_PATH for pkg-config to find the .pc file in non-standard
location

The following patch can fix this problem and make the configure error log
cleaner:

Signed-off-by: Harold Huang <baymaxhuang@gmail.com>
---
 acinclude.m4 | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--
2.18.2

On 11/10/21 05:10, Harold Huang wrote:
> When I build ovs-dpdk without mlx4/mlx5 driver, the configure log is as
> follows:
> 
> checking for DPDK... yes
> checking for faulty pkg-config version... no
> checking for rte_config.h... yes
> checking whether RTE_LIBRTE_VHOST_NUMA is declared... yes
> checking for library containing get_mempolicy... -lnuma
> checking whether RTE_EAL_NUMA_AWARE_HUGEPAGES is declared... yes
> checking for library containing get_mempolicy... (cached) -lnuma
> checking whether RTE_LIBRTE_PMD_PCAP is declared... yes
> checking for library containing pcap_dump_close... -lpcap
> checking whether RTE_LIBRTE_PMD_AF_XDP is declared... no
> checking whether RTE_LIBRTE_VHOST_NUMA is declared... (cached) yes
> checking whether RTE_LIBRTE_MLX5_PMD is declared... no
> checking whether RTE_LIBRTE_MLX4_PMD is declared... no
> checking for library containing dlopen... -ldl
> checking whether linking with dpdk works... no
> configure: error: Could not find DPDK library in default search path,
> update PKG_CONFIG_PATH for pkg-config to find the .pc file in non-standard
> location
> 
> The error log is puzzled because I indeed have configured PKG_CONFIG_PATH
> in the right way. After checking the config.log we found libibverbs is
> needed when linking with dpdk:
> 
> configure:31517: checking whether linking with dpdk works
> configure:31533: gcc -o conftest -g -O2 -DHAVE_AVX512F -mno-avx512f
> -I/usr/local/include -include rte_config.h -march=native -mno-avx512f
>  conftest.c -Wl,--whole-archive -L/usr/local/lib64 -l:librte_common_cpt.a
> -l:librte_common_dpaax.a -l:librte_common_iavf.a
> -l:librte_common_octeontx.a -l:librte_common_octeontx2.a
> -l:librte_common_sfc_efx.a -l:librte_bus_dpaa.a -l:librte_bus_fslmc.a
> -l:librte_bus_ifpga.a -l:librte_bus_pci.a -l:librte_bus_vdev.a
> -l:librte_bus_vmbus.a -l:librte_common_qat.a -l:librte_mempool_bucket.a
> -l:librte_mempool_dpaa.a -l:librte_mempool_dpaa2.a
> -l:librte_mempool_octeontx.a -l:librte_mempool_octeontx2.a
> -l:librte_mempool_ring.a -l:librte_mempool_stack.a
> -l:librte_net_af_packet.a -l:librte_net_ark.a -l:librte_net_atlantic.a
> -l:librte_net_avp.a -l:librte_net_axgbe.a -l:librte_net_bond.a
> -l:librte_net_bnx2x.a -l:librte_net_bnxt.a -l:librte_net_cxgbe.a
> -l:librte_net_dpaa.a -l:librte_net_dpaa2.a -l:librte_net_e1000.a
> -l:librte_net_ena.a -l:librte_net_enetc.a -l:librte_net_enic.a
> -l:librte_net_failsafe.a -l:librte_net_fm10k.a -l:librte_net_i40e.a
> -l:librte_net_hinic.a -l:librte_net_hns3.a -l:librte_net_iavf.a
> -l:librte_net_ice.a -l:librte_net_igc.a -l:librte_net_ixgbe.a
> -l:librte_net_kni.a -l:librte_net_liquidio.a -l:librte_net_memif.a
> -l:librte_net_netvsc.a -l:librte_net_nfp.a -l:librte_net_null.a
> -l:librte_net_octeontx.a -l:librte_net_octeontx2.a -l:librte_net_pcap.a
> -l:librte_net_pfe.a -l:librte_net_qede.a -l:librte_net_ring.a
> -l:librte_net_sfc.a -l:librte_net_softnic.a -l:librte_net_tap.a
> -l:librte_net_thunderx.a -l:librte_net_txgbe.a -l:librte_net_vdev_netvsc.a
> -l:librte_net_vhost.a -l:librte_net_virtio.a -l:librte_net_vmxnet3.a
> -l:librte_raw_dpaa2_cmdif.a -l:librte_raw_dpaa2_qdma.a -l:librte_raw_ioat.a
> -l:librte_raw_ntb.a -l:librte_raw_octeontx2_dma.a
> -l:librte_raw_octeontx2_ep.a -l:librte_raw_skeleton.a
> -l:librte_compress_octeontx.a -l:librte_compress_zlib.a
> -l:librte_regex_octeontx2.a -l:librte_vdpa_ifc.a -l:librte_baseband_null.a
> -l:librte_baseband_turbo_sw.a -l:librte_baseband_fpga_lte_fec.a
> -l:librte_baseband_fpga_5gnr_fec.a -l:librte_baseband_acc100.a
> -l:librte_node.a -l:librte_graph.a -l:librte_bpf.a
> -l:librte_flow_classify.a -l:librte_pipeline.a -l:librte_table.a
> -l:librte_port.a -l:librte_fib.a -l:librte_ipsec.a -l:librte_vhost.a
> -l:librte_stack.a -l:librte_security.a -l:librte_sched.a
> -l:librte_reorder.a -l:librte_rib.a -l:librte_regexdev.a -l:librte_rawdev.a
> -l:librte_pdump.a -l:librte_power.a -l:librte_member.a -l:librte_lpm.a
> -l:librte_latencystats.a -l:librte_kni.a -l:librte_jobstats.a
> -l:librte_ip_frag.a -l:librte_gso.a -l:librte_gro.a -l:librte_eventdev.a
> -l:librte_efd.a -l:librte_distributor.a -l:librte_cryptodev.a
> -l:librte_compressdev.a -l:librte_cfgfile.a -l:librte_bitratestats.a
> -l:librte_bbdev.a -l:librte_acl.a -l:librte_timer.a -l:librte_hash.a
> -l:librte_metrics.a -l:librte_cmdline.a -l:librte_pci.a -l:librte_ethdev.a
> -l:librte_meter.a -l:librte_net.a -l:librte_mbuf.a -l:librte_mempool.a
> -l:librte_rcu.a -l:librte_ring.a -l:librte_eal.a -l:librte_telemetry.a
> -l:librte_kvargs.a -Wl,--no-whole-archive -Wl,--export-dynamic
> -Wl,--as-needed -lrte_node -lrte_graph -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_regexdev -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_rcu -lrte_ring
> -lrte_eal -lrte_telemetry -lrte_kvargs -pthread -lm -ldl -lnuma -lz -lpcap
> -libverbs  -ldl -lpcap -lnuma -lnuma -latomic -lpthread -lrt -lm  -lunbound
>> &5
> /usr/bin/ld: cannot find -libverbs

Hi.  I'm puzzled with how did you got into this situation in a first place?
ibverbs should not be required if none of mlx drivers built into DPDK.
It must be a problem with pkg-config file generated by DPDK build process.

What DPDK version are you using?  Does it have some custom changes?

Best regards, Ilya Maximets.

Hi, Maximets,

I have found this build error message in both dpdk 20.11.3 and
20.11.1.  I did not make any change to dpdk. I use the following
command to build dpdk:

 meson builddir && cd builddir &&   meson configure
--prefix=/usr/local -Dexamples='' -Dtests=false -Denable_kmods=false
-Denable_docs=false
-Ddisable_drivers=event/*,crypto/*,net/mlx4,net/mlx5 &&   ninja &&
ninja install

I am also puzzled because DPDK is built successfully and it does not
need libibverbs.

Thanks

Ilya Maximets <i.maximets@ovn.org> 于2021年11月10日周三 下午7:55写道：
>
> On 11/10/21 05:10, Harold Huang wrote:
> > When I build ovs-dpdk without mlx4/mlx5 driver, the configure log is as
> > follows:
> >
> > checking for DPDK... yes
> > checking for faulty pkg-config version... no
> > checking for rte_config.h... yes
> > checking whether RTE_LIBRTE_VHOST_NUMA is declared... yes
> > checking for library containing get_mempolicy... -lnuma
> > checking whether RTE_EAL_NUMA_AWARE_HUGEPAGES is declared... yes
> > checking for library containing get_mempolicy... (cached) -lnuma
> > checking whether RTE_LIBRTE_PMD_PCAP is declared... yes
> > checking for library containing pcap_dump_close... -lpcap
> > checking whether RTE_LIBRTE_PMD_AF_XDP is declared... no
> > checking whether RTE_LIBRTE_VHOST_NUMA is declared... (cached) yes
> > checking whether RTE_LIBRTE_MLX5_PMD is declared... no
> > checking whether RTE_LIBRTE_MLX4_PMD is declared... no
> > checking for library containing dlopen... -ldl
> > checking whether linking with dpdk works... no
> > configure: error: Could not find DPDK library in default search path,
> > update PKG_CONFIG_PATH for pkg-config to find the .pc file in non-standard
> > location
> >
> > The error log is puzzled because I indeed have configured PKG_CONFIG_PATH
> > in the right way. After checking the config.log we found libibverbs is
> > needed when linking with dpdk:
> >
> > configure:31517: checking whether linking with dpdk works
> > configure:31533: gcc -o conftest -g -O2 -DHAVE_AVX512F -mno-avx512f
> > -I/usr/local/include -include rte_config.h -march=native -mno-avx512f
> >  conftest.c -Wl,--whole-archive -L/usr/local/lib64 -l:librte_common_cpt.a
> > -l:librte_common_dpaax.a -l:librte_common_iavf.a
> > -l:librte_common_octeontx.a -l:librte_common_octeontx2.a
> > -l:librte_common_sfc_efx.a -l:librte_bus_dpaa.a -l:librte_bus_fslmc.a
> > -l:librte_bus_ifpga.a -l:librte_bus_pci.a -l:librte_bus_vdev.a
> > -l:librte_bus_vmbus.a -l:librte_common_qat.a -l:librte_mempool_bucket.a
> > -l:librte_mempool_dpaa.a -l:librte_mempool_dpaa2.a
> > -l:librte_mempool_octeontx.a -l:librte_mempool_octeontx2.a
> > -l:librte_mempool_ring.a -l:librte_mempool_stack.a
> > -l:librte_net_af_packet.a -l:librte_net_ark.a -l:librte_net_atlantic.a
> > -l:librte_net_avp.a -l:librte_net_axgbe.a -l:librte_net_bond.a
> > -l:librte_net_bnx2x.a -l:librte_net_bnxt.a -l:librte_net_cxgbe.a
> > -l:librte_net_dpaa.a -l:librte_net_dpaa2.a -l:librte_net_e1000.a
> > -l:librte_net_ena.a -l:librte_net_enetc.a -l:librte_net_enic.a
> > -l:librte_net_failsafe.a -l:librte_net_fm10k.a -l:librte_net_i40e.a
> > -l:librte_net_hinic.a -l:librte_net_hns3.a -l:librte_net_iavf.a
> > -l:librte_net_ice.a -l:librte_net_igc.a -l:librte_net_ixgbe.a
> > -l:librte_net_kni.a -l:librte_net_liquidio.a -l:librte_net_memif.a
> > -l:librte_net_netvsc.a -l:librte_net_nfp.a -l:librte_net_null.a
> > -l:librte_net_octeontx.a -l:librte_net_octeontx2.a -l:librte_net_pcap.a
> > -l:librte_net_pfe.a -l:librte_net_qede.a -l:librte_net_ring.a
> > -l:librte_net_sfc.a -l:librte_net_softnic.a -l:librte_net_tap.a
> > -l:librte_net_thunderx.a -l:librte_net_txgbe.a -l:librte_net_vdev_netvsc.a
> > -l:librte_net_vhost.a -l:librte_net_virtio.a -l:librte_net_vmxnet3.a
> > -l:librte_raw_dpaa2_cmdif.a -l:librte_raw_dpaa2_qdma.a -l:librte_raw_ioat.a
> > -l:librte_raw_ntb.a -l:librte_raw_octeontx2_dma.a
> > -l:librte_raw_octeontx2_ep.a -l:librte_raw_skeleton.a
> > -l:librte_compress_octeontx.a -l:librte_compress_zlib.a
> > -l:librte_regex_octeontx2.a -l:librte_vdpa_ifc.a -l:librte_baseband_null.a
> > -l:librte_baseband_turbo_sw.a -l:librte_baseband_fpga_lte_fec.a
> > -l:librte_baseband_fpga_5gnr_fec.a -l:librte_baseband_acc100.a
> > -l:librte_node.a -l:librte_graph.a -l:librte_bpf.a
> > -l:librte_flow_classify.a -l:librte_pipeline.a -l:librte_table.a
> > -l:librte_port.a -l:librte_fib.a -l:librte_ipsec.a -l:librte_vhost.a
> > -l:librte_stack.a -l:librte_security.a -l:librte_sched.a
> > -l:librte_reorder.a -l:librte_rib.a -l:librte_regexdev.a -l:librte_rawdev.a
> > -l:librte_pdump.a -l:librte_power.a -l:librte_member.a -l:librte_lpm.a
> > -l:librte_latencystats.a -l:librte_kni.a -l:librte_jobstats.a
> > -l:librte_ip_frag.a -l:librte_gso.a -l:librte_gro.a -l:librte_eventdev.a
> > -l:librte_efd.a -l:librte_distributor.a -l:librte_cryptodev.a
> > -l:librte_compressdev.a -l:librte_cfgfile.a -l:librte_bitratestats.a
> > -l:librte_bbdev.a -l:librte_acl.a -l:librte_timer.a -l:librte_hash.a
> > -l:librte_metrics.a -l:librte_cmdline.a -l:librte_pci.a -l:librte_ethdev.a
> > -l:librte_meter.a -l:librte_net.a -l:librte_mbuf.a -l:librte_mempool.a
> > -l:librte_rcu.a -l:librte_ring.a -l:librte_eal.a -l:librte_telemetry.a
> > -l:librte_kvargs.a -Wl,--no-whole-archive -Wl,--export-dynamic
> > -Wl,--as-needed -lrte_node -lrte_graph -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_regexdev -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_rcu -lrte_ring
> > -lrte_eal -lrte_telemetry -lrte_kvargs -pthread -lm -ldl -lnuma -lz -lpcap
> > -libverbs  -ldl -lpcap -lnuma -lnuma -latomic -lpthread -lrt -lm  -lunbound
> >> &5
> > /usr/bin/ld: cannot find -libverbs
>
> Hi.  I'm puzzled with how did you got into this situation in a first place?
> ibverbs should not be required if none of mlx drivers built into DPDK.
> It must be a problem with pkg-config file generated by DPDK build process.
>
> What DPDK version are you using?  Does it have some custom changes?
>
> Best regards, Ilya Maximets.

On Wed, Nov 10, 2021 at 1:16 PM Harold Huang <baymaxhuang@gmail.com> wrote:
>
> Hi, Maximets,
>
> I have found this build error message in both dpdk 20.11.3 and
> 20.11.1.  I did not make any change to dpdk. I use the following
> command to build dpdk:
>
>  meson builddir && cd builddir &&   meson configure
> --prefix=/usr/local -Dexamples='' -Dtests=false -Denable_kmods=false
> -Denable_docs=false
> -Ddisable_drivers=event/*,crypto/*,net/mlx4,net/mlx5 &&   ninja &&
> ninja install
>
> I am also puzzled because DPDK is built successfully and it does not
> need libibverbs.

The common/mlx5 driver is still enabled with this configuration.
Try: -Ddisable_drivers=event/*,crypto/*,net/mlx4,*/mlx5

---------- Forwarded message ---------
发件人： Harold Huang <baymaxhuang@gmail.com>
Date: 2021年11月10日周三 下午8:53
Subject: Re: [ovs-dev] [PATCH] build: check libibverbs deps before
linking with dpdk
To: David Marchand <david.marchand@redhat.com>


Yes, I know it because it has other mlx5 drivers. But the mlx5 is
indeed skipped because I do not install any mlx5 dependency, part of
dpdk build log is as follows:

Message:
=================
Content Skipped
=================

libs:

drivers:
common/mvep: missing dependency, "libmusdk"
common/mlx5: missing dependency, "mlx5"
crypto/qat: Explicitly disabled via build config
net/ipn3ke: missing dependency, "libfdt"
net/mlx4: explicitly disabled via build config
net/mlx5: explicitly disabled via build config
net/mvneta: missing dependency, "libmusdk"
net/mvpp2: missing dependency, "libmusdk"
net/nfb: missing dependency, "libnfb"
net/szedata2: missing dependency, "libsze2"
raw/ifpga: missing dependency, "libfdt"
crypto/aesni_gcm: explicitly disabled via build config
crypto/aesni_mb: explicitly disabled via build config
crypto/armv8: explicitly disabled via build config
crypto/bcmfs: explicitly disabled via build config
crypto/caam_jr: explicitly disabled via build config
crypto/ccp: explicitly disabled via build config
crypto/dpaa_sec: explicitly disabled via build config
crypto/dpaa2_sec: explicitly disabled via build config
crypto/kasumi: explicitly disabled via build config
crypto/mvsam: explicitly disabled via build config
crypto/nitrox: explicitly disabled via build config
crypto/null: explicitly disabled via build config
crypto/octeontx: explicitly disabled via build config
crypto/octeontx2: explicitly disabled via build config
crypto/openssl: explicitly disabled via build config
crypto/scheduler: explicitly disabled via build config
crypto/snow3g: explicitly disabled via build config
crypto/virtio: explicitly disabled via build config
crypto/zuc: explicitly disabled via build config
compress/isal: missing dependency, "libisal"
regex/mlx5: missing internal dependency, "common_mlx5"
vdpa/mlx5: missing internal dependency, "common_mlx5"
event/dlb: explicitly disabled via build config
event/dlb2: explicitly disabled via build config
event/dpaa: explicitly disabled via build config
event/dpaa2: explicitly disabled via build config
event/octeontx2: explicitly disabled via build config
event/opdl: explicitly disabled via build config
event/skeleton: explicitly disabled via build config
event/sw: explicitly disabled via build config
event/dsw: explicitly disabled via build config
event/octeontx: explicitly disabled via build config

This dpdk.pc file is as follows:

prefix=/usr/local
libdir=${prefix}/lib64
includedir=${prefix}/include

Name: DPDK
Description: The Data Plane Development Kit (DPDK).
Note that CFLAGS might contain an -march flag higher than typical baseline.
This is required for a number of static inline functions in the public headers.
Version: 20.11.3
Requires: libdpdk-libs
Requires.private: libbpf, zlib, libpcap, libelf
Libs.private: -Wl,--whole-archive -L${libdir} -l:librte_common_cpt.a
-l:librte_common_dpaax.a -l:librte_common_iavf.a
-l:librte_common_octeontx.a -l:librte_common_octeontx2.a
-l:librte_common_sfc_efx.a -l:librte_bus_dpaa.a -l:librte_bus_fslmc.a
-l:librte_bus_ifpga.a -l:librte_bus_pci.a -l:librte_bus_vdev.a
-l:librte_bus_vmbus.a -l:librte_common_qat.a
-l:librte_mempool_bucket.a -l:librte_mempool_dpaa.a
-l:librte_mempool_dpaa2.a -l:librte_mempool_octeontx.a
-l:librte_mempool_octeontx2.a -l:librte_mempool_ring.a
-l:librte_mempool_stack.a -l:librte_net_af_packet.a
-l:librte_net_af_xdp.a -l:librte_net_ark.a -l:librte_net_atlantic.a
-l:librte_net_avp.a -l:librte_net_axgbe.a -l:librte_net_bond.a
-l:librte_net_bnx2x.a -l:librte_net_bnxt.a -l:librte_net_cxgbe.a
-l:librte_net_dpaa.a -l:librte_net_dpaa2.a -l:librte_net_e1000.a
-l:librte_net_ena.a -l:librte_net_enetc.a -l:librte_net_enic.a
-l:librte_net_failsafe.a -l:librte_net_fm10k.a -l:librte_net_i40e.a
-l:librte_net_hinic.a -l:librte_net_hns3.a -l:librte_net_iavf.a
-l:librte_net_ice.a -l:librte_net_igc.a -l:librte_net_ixgbe.a
-l:librte_net_kni.a -l:librte_net_liquidio.a -l:librte_net_memif.a
-l:librte_net_netvsc.a -l:librte_net_nfp.a -l:librte_net_null.a
-l:librte_net_octeontx.a -l:librte_net_octeontx2.a
-l:librte_net_pcap.a -l:librte_net_pfe.a -l:librte_net_qede.a
-l:librte_net_ring.a -l:librte_net_sfc.a -l:librte_net_softnic.a
-l:librte_net_tap.a -l:librte_net_thunderx.a -l:librte_net_txgbe.a
-l:librte_net_vdev_netvsc.a -l:librte_net_vhost.a
-l:librte_net_virtio.a -l:librte_net_vmxnet3.a
-l:librte_raw_dpaa2_cmdif.a -l:librte_raw_dpaa2_qdma.a
-l:librte_raw_ioat.a -l:librte_raw_ntb.a -l:librte_raw_octeontx2_dma.a
-l:librte_raw_octeontx2_ep.a -l:librte_raw_skeleton.a
-l:librte_compress_octeontx.a -l:librte_compress_zlib.a
-l:librte_regex_octeontx2.a -l:librte_vdpa_ifc.a
-l:librte_baseband_null.a -l:librte_baseband_turbo_sw.a
-l:librte_baseband_fpga_lte_fec.a -l:librte_baseband_fpga_5gnr_fec.a
-l:librte_baseband_acc100.a -l:librte_node.a -l:librte_graph.a
-l:librte_bpf.a -l:librte_flow_classify.a -l:librte_pipeline.a
-l:librte_table.a -l:librte_port.a -l:librte_fib.a -l:librte_ipsec.a
-l:librte_vhost.a -l:librte_stack.a -l:librte_security.a
-l:librte_sched.a -l:librte_reorder.a -l:librte_rib.a
-l:librte_regexdev.a -l:librte_rawdev.a -l:librte_pdump.a
-l:librte_power.a -l:librte_member.a -l:librte_lpm.a
-l:librte_latencystats.a -l:librte_kni.a -l:librte_jobstats.a
-l:librte_ip_frag.a -l:librte_gso.a -l:librte_gro.a
-l:librte_eventdev.a -l:librte_efd.a -l:librte_distributor.a
-l:librte_cryptodev.a -l:librte_compressdev.a -l:librte_cfgfile.a
-l:librte_bitratestats.a -l:librte_bbdev.a -l:librte_acl.a
-l:librte_timer.a -l:librte_hash.a -l:librte_metrics.a
-l:librte_cmdline.a -l:librte_pci.a -l:librte_ethdev.a
-l:librte_meter.a -l:librte_net.a -l:librte_mbuf.a -l:librte_mempool.a
-l:librte_rcu.a -l:librte_ring.a -l:librte_eal.a -l:librte_telemetry.a
-l:librte_kvargs.a -Wl,--no-whole-archive -Wl,--export-dynamic
Cflags: -I${includedir}

The libdpdk-libs.pc is as follows:

prefix=/usr/local
libdir=${prefix}/lib64
includedir=${prefix}/include

Name: dpdk-libs
Description: Internal-only DPDK pkgconfig file. Not for direct use.
Use libdpdk.pc instead of this file to query DPDK compile/link arguments
Version: 20.11.3
Libs: -Wl,--as-needed -L${libdir} -lrte_node -lrte_graph -lrte_bpf
-lrte_flow_classify -lrte_pipeline -lrte_table -lrte_port -lrte_fib
-lrte_ipsec -lrte_vhost -lrte_stack -lrte_security -lrte_sched
-lrte_reorder -lrte_rib -lrte_regexdev -lrte_rawdev -lrte_pdump
-lrte_power -lrte_member -lrte_lpm -lrte_latencystats -lrte_kni
-lrte_jobstats -lrte_ip_frag -lrte_gso -lrte_gro -lrte_eventdev
-lrte_efd -lrte_distributor -lrte_cryptodev -lrte_compressdev
-lrte_cfgfile -lrte_bitratestats -lrte_bbdev -lrte_acl -lrte_timer
-lrte_hash -lrte_metrics -lrte_cmdline -lrte_pci -lrte_ethdev
-lrte_meter -lrte_net -lrte_mbuf -lrte_mempool -lrte_rcu -lrte_ring
-lrte_eal -lrte_telemetry -lrte_kvargs
Libs.private: -pthread -lm -ldl -lnuma -lpcap
Cflags: -I${includedir} -I${includedir} -include rte_config.h
-march=native -mno-avx512f

FIY,  both dpdk and ovs are built in CentOS Linux release 8.2.2004
with a native kernel 4.18.0-193.el8.x86_64.

David Marchand <david.marchand@redhat.com> 于2021年11月10日周三 下午8:36写道：
>
> On Wed, Nov 10, 2021 at 1:16 PM Harold Huang <baymaxhuang@gmail.com> wrote:
> >
> > Hi, Maximets,
> >
> > I have found this build error message in both dpdk 20.11.3 and
> > 20.11.1.  I did not make any change to dpdk. I use the following
> > command to build dpdk:
> >
> >  meson builddir && cd builddir &&   meson configure
> > --prefix=/usr/local -Dexamples='' -Dtests=false -Denable_kmods=false
> > -Denable_docs=false
> > -Ddisable_drivers=event/*,crypto/*,net/mlx4,net/mlx5 &&   ninja &&
> > ninja install
> >
> > I am also puzzled because DPDK is built successfully and it does not
> > need libibverbs.
>
> The common/mlx5 driver is still enabled with this configuration.
> Try: -Ddisable_drivers=event/*,crypto/*,net/mlx4,*/mlx5
>
> --
> David Marchand
>

On Thu, Nov 11, 2021 at 2:55 AM Harold Huang <baymaxhuang@gmail.com> wrote:
>
> FIY,  both dpdk and ovs are built in CentOS Linux release 8.2.2004
> with a native kernel 4.18.0-193.el8.x86_64.

I started a Centos 8.2 vm.
No libibverbs installed by default.
I compiled DPDK v20.11.3 and installed it in builddir/install

The output you provided on .pc files matches what I see.
No reference to libibverbs in installed DPDK:
[dpdk@centos8 dpdk]$ grep -r ibverbs builddir/install
[dpdk@centos8 dpdk]$


I have no problem building and linking OVS (current master branch).

Here is what I see in my working OVS environment (I mean in the
directory where I have the OVS sources, and where I ran sh boot.sh +
PKG_CONFIG_PATH=... ./configure --with-dpdk):
[dpdk@centos8 ovs]$ grep -r ibverbs .
./acinclude.m4:        OVS_FIND_DEPENDENCY([verbs_init_cq], [ibverbs],
[libibverbs])
./acinclude.m4:        OVS_FIND_DEPENDENCY([verbs_init_cq], [ibverbs],
[libibverbs])
./autom4te.cache/traces.0:        OVS_FIND_DEPENDENCY([verbs_init_cq],
[ibverbs], [libibverbs])
./autom4te.cache/traces.0:        OVS_FIND_DEPENDENCY([verbs_init_cq],
[ibverbs], [libibverbs])
./autom4te.cache/traces.0:m4trace:configure.ac:197: -1-
OVS_FIND_DEPENDENCY([verbs_init_cq], [ibverbs], [libibverbs])
./autom4te.cache/traces.0:m4trace:configure.ac:197: -1-
OVS_FIND_DEPENDENCY([verbs_init_cq], [ibverbs], [libibverbs])
./autom4te.cache/output.0:for ac_lib in '' ibverbs; do
./autom4te.cache/output.0:    as_fn_error $? "unable to find
libibverbs, install the dependency package" "$LINENO" 5
./autom4te.cache/output.0:for ac_lib in '' ibverbs; do
./autom4te.cache/output.0:    as_fn_error $? "unable to find
libibverbs, install the dependency package" "$LINENO" 5
./autom4te.cache/output.1:for ac_lib in '' ibverbs; do
./autom4te.cache/output.1:    as_fn_error $? "unable to find
libibverbs, install the dependency package" "$LINENO" 5
./autom4te.cache/output.1:for ac_lib in '' ibverbs; do
./autom4te.cache/output.1:    as_fn_error $? "unable to find
libibverbs, install the dependency package" "$LINENO" 5
./autom4te.cache/traces.2:        OVS_FIND_DEPENDENCY([verbs_init_cq],
[ibverbs], [libibverbs])
./autom4te.cache/traces.2:        OVS_FIND_DEPENDENCY([verbs_init_cq],
[ibverbs], [libibverbs])
./autom4te.cache/traces.2:m4trace:configure.ac:197: -1-
OVS_FIND_DEPENDENCY([verbs_init_cq], [ibverbs], [libibverbs])
./autom4te.cache/traces.2:m4trace:configure.ac:197: -1-
OVS_FIND_DEPENDENCY([verbs_init_cq], [ibverbs], [libibverbs])
./autom4te.cache/output.2:for ac_lib in '' ibverbs; do
./autom4te.cache/output.2:    as_fn_error $? "unable to find
libibverbs, install the dependency package" "$LINENO" 5
./autom4te.cache/output.2:for ac_lib in '' ibverbs; do
./autom4te.cache/output.2:    as_fn_error $? "unable to find
libibverbs, install the dependency package" "$LINENO" 5
./configure:for ac_lib in '' ibverbs; do
./configure:    as_fn_error $? "unable to find libibverbs, install the
dependency package" "$LINENO" 5
./configure:for ac_lib in '' ibverbs; do
./configure:    as_fn_error $? "unable to find libibverbs, install the
dependency package" "$LINENO" 5


OVS requests ibverbs only if mlx drivers are present in DPDK build (+
option RTE_IBVERBS_LINK_DLOPEN iirc).

For your issue, things that come to mind are an outdated build
directory, maybe following a pull from OVS sources, or maybe you had
ibverbs installed in the past on this system, and now it has been
removed.

Did you compile OVS from a scratch/clean environment?

David Marchand <david.marchand@redhat.com> 于2021年11月12日周五 下午7:01写道：
>
> OVS requests ibverbs only if mlx drivers are present in DPDK build (+
> option RTE_IBVERBS_LINK_DLOPEN iirc).
>
> For your issue, things that come to mind are an outdated build
> directory, maybe following a pull from OVS sources, or maybe you had
> ibverbs installed in the past on this system, and now it has been
> removed.
>
> Did you compile OVS from a scratch/clean environment?

Hi, David,
   I also started a clean centos 8.2 vm environment and init the vm
environment with the following command:
$dnf -y install 'dnf-command(config-manager)' && dnf config-manager
--set-enabled PowerTools && dnf install -y gcc make numactl-devel
meson autoconf automake libtool unbound unbound-devel

I could also build dpdk and link ovs successfully. But after I
installed libpcap-devel and rebuild dpdk, I could not link ovs
anymore. And the error message is the same as what I posted before. I
found libpcap.pc also has a dependency about libibverbs:
#
# pkg-config file for libpcap.
#
# These variables come from the configure script, so includedir and
# libdir may be defined in terms of prefix and exec_prefix, so the
# latter must be defined as well.
#
prefix="/usr"
exec_prefix="/usr"
includedir="/usr/include"
libdir="/usr/lib64"

Name: libpcap
Description: Platform-independent network traffic capture library
Version: 1.9.1
Libs: -L${libdir} -lpcap
Libs.private: -libverbs
Cflags: -I${includedir}

As a result, maybe libverbs should also be added in:
    AC_CHECK_DECL([RTE_LIBRTE_PMD_PCAP], [
      OVS_FIND_DEPENDENCY([pcap_dump_close], [pcap], [libpcap],[libverbs])
    ], [], [[#include <rte_config.h>]])

Thanks
Harold Huang

Hello,

On Sun, Nov 14, 2021 at 10:27 AM Harold Huang <baymaxhuang@gmail.com> wrote:
> David Marchand <david.marchand@redhat.com> 于2021年11月12日周五 下午7:01写道：
> > OVS requests ibverbs only if mlx drivers are present in DPDK build (+
> > option RTE_IBVERBS_LINK_DLOPEN iirc).
> >
> > For your issue, things that come to mind are an outdated build
> > directory, maybe following a pull from OVS sources, or maybe you had
> > ibverbs installed in the past on this system, and now it has been
> > removed.
> >
> > Did you compile OVS from a scratch/clean environment?
>
> Hi, David,
>    I also started a clean centos 8.2 vm environment and init the vm
> environment with the following command:
> $dnf -y install 'dnf-command(config-manager)' && dnf config-manager
> --set-enabled PowerTools && dnf install -y gcc make numactl-devel
> meson autoconf automake libtool unbound unbound-devel
>
> I could also build dpdk and link ovs successfully. But after I
> installed libpcap-devel and rebuild dpdk, I could not link ovs
> anymore. And the error message is the same as what I posted before. I
> found libpcap.pc also has a dependency about libibverbs:
> #
> # pkg-config file for libpcap.
> #
> # These variables come from the configure script, so includedir and
> # libdir may be defined in terms of prefix and exec_prefix, so the
> # latter must be defined as well.
> #
> prefix="/usr"
> exec_prefix="/usr"
> includedir="/usr/include"
> libdir="/usr/lib64"
>
> Name: libpcap
> Description: Platform-independent network traffic capture library
> Version: 1.9.1
> Libs: -L${libdir} -lpcap
> Libs.private: -libverbs
> Cflags: -I${includedir}

I can reproduce the issue now.
As you describe, I installed libpcap-devel, rebuilt and installed DPDK, then:

[dpdk@centos8 build]$
PKG_CONFIG_PATH=/home/dpdk/dpdk/builddir/install/lib64/pkgconfig
../configure --with-dpdk
...
checking for struct tcf_t.firstuse... yes
checking whether dpdk is enabled... yes
checking for DPDK... yes
checking for faulty pkg-config version... no
checking for rte_config.h... yes
checking whether RTE_LIBRTE_VHOST_NUMA is declared... yes
checking for library containing get_mempolicy... -lnuma
checking whether RTE_EAL_NUMA_AWARE_HUGEPAGES is declared... yes
checking for library containing get_mempolicy... (cached) -lnuma
checking whether RTE_NET_PCAP is declared... yes
checking for library containing pcap_dump_close... -lpcap
checking whether RTE_NET_AF_XDP is declared... no
checking whether RTE_LIBRTE_VHOST_NUMA is declared... (cached) yes
checking whether RTE_NET_MLX5 is declared... no
checking whether RTE_NET_MLX4 is declared... no
checking for library containing dlopen... -ldl
checking whether linking with dpdk works... no
configure: error: Could not find DPDK library in default search path,
update PKG_CONFIG_PATH for pkg-config to find the .pc file in
non-standard location

(fwiw, linking against dpdk dynamically works).


The problem is either on dpdk side or (I would lean to) Centos
packaging, not OVS.
It can be reproduced with DPDK examples:

[dpdk@centos8 build]$ cd ~/dpdk/builddir/install/share/dpdk/examples/helloworld/
[dpdk@centos8 helloworld]$
PKG_CONFIG_PATH=/home/dpdk/dpdk/builddir/install/lib64/pkgconfig make
static
cc -O3 -I/home/dpdk/dpdk/builddir/install/include -include
rte_config.h -march=native -mno-avx512f  -DALLOW_EXPERIMENTAL_API
main.c -o build/helloworld-static  -Wl,--whole-archive
-L/home/dpdk/dpdk/builddir/install/lib64 -l:librte_common_cpt.a
-l:librte_common_dpaax.a -l:librte_common_iavf.a
-l:librte_common_octeontx.a -l:librte_common_octeontx2.a
-l:librte_common_sfc_efx.a -l:librte_bus_dpaa.a -l:librte_bus_fslmc.a
-l:librte_bus_ifpga.a -l:librte_bus_pci.a -l:librte_bus_vdev.a
-l:librte_bus_vmbus.a -l:librte_common_qat.a
-l:librte_mempool_bucket.a -l:librte_mempool_dpaa.a
-l:librte_mempool_dpaa2.a -l:librte_mempool_octeontx.a
-l:librte_mempool_octeontx2.a -l:librte_mempool_ring.a
-l:librte_mempool_stack.a -l:librte_net_af_packet.a
-l:librte_net_ark.a -l:librte_net_atlantic.a -l:librte_net_avp.a
-l:librte_net_axgbe.a -l:librte_net_bond.a -l:librte_net_bnx2x.a
-l:librte_net_bnxt.a -l:librte_net_cxgbe.a -l:librte_net_dpaa.a
-l:librte_net_dpaa2.a -l:librte_net_e1000.a -l:librte_net_ena.a
-l:librte_net_enetc.a -l:librte_net_enic.a -l:librte_net_failsafe.a
-l:librte_net_fm10k.a -l:librte_net_i40e.a -l:librte_net_hinic.a
-l:librte_net_hns3.a -l:librte_net_iavf.a -l:librte_net_ice.a
-l:librte_net_igc.a -l:librte_net_ixgbe.a -l:librte_net_kni.a
-l:librte_net_liquidio.a -l:librte_net_memif.a -l:librte_net_netvsc.a
-l:librte_net_nfp.a -l:librte_net_null.a -l:librte_net_octeontx.a
-l:librte_net_octeontx2.a -l:librte_net_pcap.a -l:librte_net_pfe.a
-l:librte_net_qede.a -l:librte_net_ring.a -l:librte_net_sfc.a
-l:librte_net_softnic.a -l:librte_net_tap.a -l:librte_net_thunderx.a
-l:librte_net_txgbe.a -l:librte_net_vdev_netvsc.a
-l:librte_net_vhost.a -l:librte_net_virtio.a -l:librte_net_vmxnet3.a
-l:librte_raw_dpaa2_cmdif.a -l:librte_raw_dpaa2_qdma.a
-l:librte_raw_ioat.a -l:librte_raw_ntb.a -l:librte_raw_octeontx2_dma.a
-l:librte_raw_octeontx2_ep.a -l:librte_raw_skeleton.a
-l:librte_compress_octeontx.a -l:librte_compress_zlib.a
-l:librte_regex_octeontx2.a -l:librte_vdpa_ifc.a
-l:librte_baseband_null.a -l:librte_baseband_turbo_sw.a
-l:librte_baseband_fpga_lte_fec.a -l:librte_baseband_fpga_5gnr_fec.a
-l:librte_baseband_acc100.a -l:librte_node.a -l:librte_graph.a
-l:librte_bpf.a -l:librte_flow_classify.a -l:librte_pipeline.a
-l:librte_table.a -l:librte_port.a -l:librte_fib.a -l:librte_ipsec.a
-l:librte_vhost.a -l:librte_stack.a -l:librte_security.a
-l:librte_sched.a -l:librte_reorder.a -l:librte_rib.a
-l:librte_regexdev.a -l:librte_rawdev.a -l:librte_pdump.a
-l:librte_power.a -l:librte_member.a -l:librte_lpm.a
-l:librte_latencystats.a -l:librte_kni.a -l:librte_jobstats.a
-l:librte_ip_frag.a -l:librte_gso.a -l:librte_gro.a
-l:librte_eventdev.a -l:librte_efd.a -l:librte_distributor.a
-l:librte_cryptodev.a -l:librte_compressdev.a -l:librte_cfgfile.a
-l:librte_bitratestats.a -l:librte_bbdev.a -l:librte_acl.a
-l:librte_timer.a -l:librte_hash.a -l:librte_metrics.a
-l:librte_cmdline.a -l:librte_pci.a -l:librte_ethdev.a
-l:librte_meter.a -l:librte_net.a -l:librte_mbuf.a -l:librte_mempool.a
-l:librte_rcu.a -l:librte_ring.a -l:librte_eal.a -l:librte_telemetry.a
-l:librte_kvargs.a -Wl,--no-whole-archive -Wl,--export-dynamic
-Wl,--as-needed -lrte_node -lrte_graph -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_regexdev -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_rcu -lrte_ring -lrte_eal
-lrte_telemetry -lrte_kvargs -pthread -lm -ldl -lnuma -lz -lpcap
-libverbs
/usr/bin/ld: cannot find -libverbs
collect2: error: ld returned 1 exit status
make: *** [Makefile:35: build/helloworld-static] Error 1

[dpdk@centos8 helloworld]$ ls -1 /usr/lib64/libpcap.so*
/usr/lib64/libibverbs.so*
/usr/lib64/libibverbs.so.1
/usr/lib64/libibverbs.so.1.11.32.0
/usr/lib64/libpcap.so
/usr/lib64/libpcap.so.1
/usr/lib64/libpcap.so.1.9.1

Absence of libibverbs.so is explained by the the absence of
libibverbs-devel package.
[dpdk@centos8 helloworld]$ rpm -q libpcap libpcap-devel libibverbs
libibverbs-devel
libpcap-1.9.1-5.el8.x86_64
libpcap-devel-1.9.1-5.el8.x86_64
libibverbs-32.0-4.el8.x86_64
package libibverbs-devel is not installed

Problem is solved for me, by installing libibverbs-devel.

Copying Bruce and Timothy who may have an opinion on this.