built dpdk 19.11.12 from source and i have written an ext app built using these libraries. I use dpdk-devbind to bind a device to igb_uio . The device i have is an Intel X550. When i run testpmd it seems to recognize the device but int my app rte_eth_dev_count_avail always returns 0
I would belive this has to either do with the way i have built my dpdk library or my app this is extract of the Makefile i am using to build my app
RTE_SDK ?= /usr/local/share/dpdk
RTE_TARGET ?= x86_64-default-linuxapp-gcc
include $(RTE_SDK)/mk/rte.vars.mk
# binary name
APP = myapp
# all source are stored in SRCS-y
SRCS-y := main.c
WERROR_FLAGS += -Werror
CFLAGS += -O3 -g
CFLAGS += $(WERROR_FLAGS) -Wno-address-of-packed-member
CFLAGS += -Wall
CFLAGS += -pie -fPIE -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=1 -fstack-protector-strong
CFLAGS += -DSTATSD
LDFLAGS += -z relro -z now
LDFLAGS += -ljansson -lrte_pmd_ixgbe
LDLIBS += -lrte_pmd_ixgbe
# disable since libxenstore.so isn't linked properly
#CONFIG_RTE_LIBRTE_PMD_XENVIRT = n
CONFIG_RTE_LIBRTE_PMD_IXGBE = y
include $(RTE_SDK)/mk/rte.extapp.mk
I build my dpdk libraries using this
RUN make -C /dpdk/dpdk-stable-${DPDK_VERSION}/ config T=x86_64-native-linuxapp-gcc
RUN cd /dpdk/dpdk-stable-${DPDK_VERSION}/ && cat build/.config | sed -e s/CONFIG_RTE_BUILD_SHARED_LIB=n/CONFIG_RTE_BUILD_SHARED_LIB=y/g > /tmp/out && mv /tmp/out build/.config
RUN cd /dpdk/dpdk-stable-${DPDK_VERSION}/ && cat build/.config | sed -e s/CONFIG_RTE_LIBRTE_ETHDEV_DEBUG=n/CONFIG_RTE_LIBRTE_ETHDEV_DEBUG=y/g > /tmp/out && mv /tmp/out build/.config
RUN cd /dpdk/dpdk-stable-${DPDK_VERSION}/ && cat build/.config | sed -e s/CONFIG_RTE_LIBRTE_E1000_DEBUG_RX=n/CONFIG_RTE_LIBRTE_E1000_DEBUG_RX=y/g > /tmp/out && mv /tmp/out build/.config
RUN cd /dpdk/dpdk-stable-${DPDK_VERSION}/ && cat build/.config | sed -e s/CONFIG_RTE_LIBRTE_E1000_DEBUG_TX=n/CONFIG_RTE_LIBRTE_E1000_DEBUG_TX=y/g > /tmp/out && mv /tmp/out build/.config
RUN cd /dpdk/dpdk-stable-${DPDK_VERSION}/ && cat build/.config | sed -e s/CONFIG_RTE_LIBRTE_IXGBE_DEBUG_RX=n/CONFIG_RTE_LIBRTE_IXGBE_DEBUG_RX=y/g > /tmp/out && mv /tmp/out build/.config
RUN cd /dpdk/dpdk-stable-${DPDK_VERSION}/ && cat build/.config | sed -e s/CONFIG_RTE_LIBRTE_IXGBE_DEBUG_TX=n/CONFIG_RTE_LIBRTE_IXGBE_DEBUG_TX=y/g > /tmp/out && mv /tmp/out build/.config
RUN cd /dpdk/dpdk-stable-${DPDK_VERSION}/ && cat build/.config | sed -e s/CONFIG_RTE_LOG_DP_LEVEL=RTE_LOG_INFO/CONFIG_RTE_LOG_DP_LEVEL=RTE_LOG_DEBUG/g > /tmp/out && mv /tmp/out build/.config
RUN cd /dpdk/dpdk-stable-${DPDK_VERSION}/ && cat build/.config | sed -e s/CONFIG_RTE_LOG_HISTORY=256/CONFIG_RTE_LOG_HISTORY=2048/g > /tmp/out && mv /tmp/out build/.config
i can bind to the interfaces using dpdk-devbind and testpmd also seems to identify and be able to bind to these devices
but my app is not able to recognize the devices. What am i missing here ?
these are the logs --log-level=8 for EAL logs and I get this output
Sep 09 04:56:50 {"timestamp": 1662717410.8821511, "level": "info", "message": "Initialising EAL ..."}
Sep 09 04:56:50 EAL: Detected 64 lcore(s)
Sep 09 04:56:50 EAL: Detected 2 NUMA nodes
Sep 09 04:56:50 EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
Sep 09 04:56:50 EAL: Selected IOVA mode 'PA'
Sep 09 04:56:50 EAL: No available hugepages reported in hugepages-1048576kB
Sep 09 04:56:50 EAL: Debug dataplane logs available - lower performance
Sep 09 04:56:50 EAL: Debug dataplane logs available - lower performance
Sep 09 04:56:50 EAL: Probing VFIO support...
Sep 09 04:56:50 EAL: VFIO support initialized
Sep 09 04:56:50 EAL: Probing VFIO support...
Sep 09 04:56:50 EAL: VFIO support initialized
also adding the -d parameter with the directory where the plugins are located /usr/local/lib/ gives me an error where the plugin is not found the eal param initialized is
--master-lcore 4 -l 4,5,6,7 --log-level 8 -d /usr/local/lib/
Sep 09 04:47:29 EAL: Detected 64 lcore(s) Sep 09 04:47:29 EAL: Detected 2 NUMA nodes Sep 09 04:47:29 EAL: librte_compressdev.so.0.200: cannot open shared object file: No such file or directory Sep 09 04:47:29 EAL: FATAL: Cannot init plugins Sep 09 04:47:29 EAL: Cannot init plugins
the librte_compressdev.so.0.200 is present in the path
ls -l /usr/local/lib/librte_compressdev.so.0.200 -rwxr-xr-x 1 root root 38024 Sep 8 23:51 /usr/local/lib/librte_compressdev.so.0.200