Hi Ryan, Thanks for that.
So, I tried to build UHD manually and now when I generate the MakeFile, DPDK support is detected. But when I try to build UHD, I got an error when linking shared library libuhd.so: /usr/bin/ld: //usr/local/lib/librte_eal.a(eal_thread.o): relocation R_X86_64_TPOFF32 against `per_lcore__thread_id.8433' can not be used when making a shared object; recompile with -fPIC /usr/bin/ld: //usr/local/lib/librte_eal.a(eal_vfio.o): relocation R_X86_64_TPOFF32 against `per_lcore__thread_id.6718' can not be used when making a shared object; recompile with -fPIC /usr/bin/ld: //usr/local/lib/librte_eal.a(eal_interrupts.o): relocation R_X86_64_TPOFF32 against `per_lcore__epfd' can not be used when making a shared object; recompile with -fPIC /usr/bin/ld: //usr/local/lib/librte_eal.a(eal_common_log.o): relocation R_X86_64_TPOFF32 against `per_lcore_log_cur_msg' can not be used when making a shared object; recompile with -fPIC /usr/bin/ld: //usr/local/lib/librte_eal.a(eal_common_errno.o): relocation R_X86_64_TPOFF32 against `per_lcore_retval.3874' can not be used when making a shared object; recompile with -fPIC /usr/bin/ld: //usr/local/lib/librte_eal.a(eal_debug.o): relocation R_X86_64_PC32 against symbol `rte_dump_stack' can not be used when making a shared object; recompile with -fPIC /usr/bin/ld: final link failed: Bad value collect2: error: ld returned 1 exit status lib/CMakeFiles/uhd.dir/build.make:7976: recipe for target 'lib/libuhd.so.4.0.0' failed make[2]: *** [lib/libuhd.so.4.0.0] Error 1 CMakeFiles/Makefile2:123: recipe for target 'lib/CMakeFiles/uhd.dir/all' failed make[1]: *** [lib/CMakeFiles/uhd.dir/all] Error 2 Makefile:162: recipe for target 'all' failed make: *** [all] Error 2 I've read somewhere it's because librte_eal is not compiled as a shared library. But I changed when CONFIG_RTE_BUILD_SHARED_LIB=n building dpdk. Did you go through this issue too ? Le ven. 12 juin 2020 à 19:37, Carmichael, Ryan <ryan.carmich...@dynetics.com> a écrit : > Jeremy, > > > > I went through this recently and I believe you need to build UHD manually, > assuming you are using pre-built UHD binaries. If you’ve installed it, DPDK > support should be detected when you build the UHD driver (the output of > cmake should indicate if it finds it or not). > > > > - Ryan > > > > > > I recently bought a X310 usrp and a 82599ES 10-Gigabit SFI/SFP+ Network > Interface Card (the one recommended on the Ettus Website). > > I first set my connections and a benchmark test shows a lot of dropped > samples and some overflows. > So i decided to try using dpdk to improve my setup. > I have UHD 3.14.1.1 and I installed dpdk with my apt package manager (dpdk > version 17.11.9). > I followed this guide > https://kb.ettus.com/Getting_Started_with_DPDK_and_UHD and when I run the > benchmark with use_dpdk argument, I got the following: > [WARNING] [DPDK] Detected use_dpdk argument, but DPDK support not built in. > > I really don't understand what's wrong. I tried so many things. I tried > with dpdk 18 and went back to 17 because it didn't solve anything. > > Could anyone help me with that please ? > > Jeremy > > * ------------------------------ The information contained in this > message, and any attachments, may contain privileged and/or proprietary > information that is intended solely for the person or entity to which it is > addressed. Moreover, it may contain export restricted technical data > controlled by Export Administration Regulations (EAR) or the International > Traffic in Arms Regulations (ITAR). Any review, retransmission, > dissemination, or re-export to foreign or domestic entities by anyone other > than the intended recipient in accordance with EAR and/or ITAR regulations > is prohibited. * >
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