On 3/19/2018 3:34 PM, Venkatesh N wrote: > Hi Everyone, > > Need urgent help over here. > > After cloning the latest git, when i compiled the dpdk > in shared library mode by modifying the common_base config file > and rebuild the examples the api rte_eth_dev_count() returns 0 > > However in the static library mode, rte_eth_dev_count() returns 2. > Can someone please let me know what iam missing over here. > > Here are details > > -- Code -- > > /* Check that there is an even number of ports to send/receive on. */ > nb_ports = rte_eth_dev_count(); > if (nb_ports < 2 || (nb_ports & 1)) > rte_exit(EXIT_FAILURE, "Error: number of ports must be > even\n"); > > > #make config T=x86_64-native-linuxapp-gcc install examples > --------------------------------------- > Libraries built by changing the SHARED_LIB. > > config/common_base > +++ b/config/common_base > @@ -38,7 +38,7 @@ CONFIG_RTE_ARCH_STRICT_ALIGN=n > # > # Compile to share library > # > -CONFIG_RTE_BUILD_SHARED_LIB=n > +CONFIG_RTE_BUILD_SHARED_LIB=y > ---------------------------------------- > > > ------------------------------------------------------------------------------------------ > > [root@localhost dpdk_new]# > ./examples/skeleton/x86_64-native-linuxapp-gcc/basicfwd > EAL: Detected 72 lcore(s) > EAL: Multi-process socket /var/run/.rte_unix > EAL: Probing VFIO support... > EAL: Error - exiting with code: 1 > Cause: Error: number of ports must be even > ------------------------------------------------------------------------------------------ > [root@localhost dpdk_new]# ldd > ./examples/skeleton/x86_64-native-linuxapp-gcc/basicfwd > linux-vdso.so.1 => (0x00007fffa858a000) > librte_flow_classify.so.1.1 => > /root/DPDK/dpdk_new/x86_64-native-linuxapp-gcc/lib/librte_flow_classify.so.1.1 > (0x00007f7272f5f000) > librte_pipeline.so.3.1 => > /root/DPDK/dpdk_new/x86_64-native-linuxapp-gcc/lib/librte_pipeline.so.3.1 > (0x00007f7272d58000) > librte_table.so.3.1 => > /root/DPDK/dpdk_new/x86_64-native-linuxapp-gcc/lib/librte_table.so.3.1 > (0x00007f7272b3e000) > librte_port.so.3.1 => > /root/DPDK/dpdk_new/x86_64-native-linuxapp-gcc/lib/librte_port.so.3.1 > (0x00007f727291d000) > librte_pdump.so.2.1 => > /root/DPDK/dpdk_new/x86_64-native-linuxapp-gcc/lib/librte_pdump.so.2.1 > (0x00007f7272513000) > librte_distributor.so.1.1 => > /root/DPDK/dpdk_new/x86_64-native-linuxapp-gcc/lib/librte_distributor.so.1.1 > (0x00007f727230d000) > librte_ip_frag.so.1.1 => > /root/DPDK/dpdk_new/x86_64-native-linuxapp-gcc/lib/librte_ip_frag.so.1.1 > (0x00007f7272103000) > librte_gro.so.1.1 => > /root/DPDK/dpdk_new/x86_64-native-linuxapp-gcc/lib/librte_gro.so.1.1 > (0x00007f7271efc000) > librte_gso.so.1.1 => > /root/DPDK/dpdk_new/x86_64-native-linuxapp-gcc/lib/librte_gso.so.1.1 > (0x00007f7271cf7000) > --snip-- > > [root@localhost dpdk_new]# ./usertools/dpdk-devbind.py --status > > Network devices using DPDK-compatible driver > ============================================ > 0000:04:00.0 'I350 Gigabit Network Connection 1521' drv=igb_uio unused= > 0000:04:00.1 'I350 Gigabit Network Connection 1521' drv=igb_uio unused= > > ------------ Static Library Mode --------------------- > > [root@localhost dpdk_new]# > ./examples/skeleton/x86_64-native-linuxapp-gcc/basicfwd > EAL: Detected 72 lcore(s) > EAL: Multi-process socket /var/run/.rte_unix > EAL: Probing VFIO support... > EAL: PCI device 0000:04:00.0 on NUMA socket 0 > EAL: probe driver: 8086:1521 net_e1000_igb > EAL: PCI device 0000:04:00.1 on NUMA socket 0 > EAL: probe driver: 8086:1521 net_e1000_igb > EAL: PCI device 0000:04:00.2 on NUMA socket 0 > EAL: probe driver: 8086:1521 net_e1000_igb > EAL: PCI device 0000:04:00.3 on NUMA socket 0 > EAL: probe driver: 8086:1521 net_e1000_igb > EAL: PCI device 0000:05:00.0 on NUMA socket 0 > EAL: probe driver: 8086:1572 net_i40e > EAL: PCI device 0000:05:00.1 on NUMA socket 0 > EAL: probe driver: 8086:1572 net_i40e > Port 0 MAC: 14 02 ec 6b 36 10 > Port 1 MAC: 14 02 ec 6b 36 11 > > ----------------------------------- > > Git Log > ------- > commit 09e1e8d256b0832a64af6d13bf96fcb49e1e7ded > Author: Hemant Agrawal <hemant.agra...@nxp.com> > Date: Fri Feb 23 15:28:03 2018 +0530 > > mk: fix dependencies of dpaaX drivers > > This patch fixes the build dependency of various > dpaaX components, when the dpaa or fslmc bus is disabled, > or VFIO is disabled. > > Regards, > Venky >
Need to provide "-d" parameter for shared build [1], something like: "./examples/skeleton/x86_64-native-linuxapp-gcc/basicfwd -d ./x86_64-native-linuxapp-gcc/lib" [1] https://dpdk.org/doc/guides/linux_gsg/build_sample_apps.html#running-a-sample-application
