mount -t hugetlbfs nodev /mnt/huge
echo 64 > /sys/devices/system/node/node0/hugepages/hugepages-2048kB/nr_hugepages
- * To configure the DPDK build for the combined shared library modify
- `config/common_base` in your DPDK as follows
+ * To configure the DPDK build for the combined shared library and enable autoload
+ of pmd drivers modify `config/common_base` in your DPDK as follows
#
# Compile to share library
-CONFIG_RTE_BUILD_SHARED_LIB=n
+CONFIG_RTE_BUILD_SHARED_LIB=y
+ # Default driver path (or "" to disable)
+ -CONFIG_RTE_EAL_PMD_PATH=""
+ +CONFIG_RTE_EAL_PMD_PATH="/usr/lib/dpdk-pmd/"
+
* Prepare the configuration for the appropriate target as specified at:
http://dpdk.org/doc/guides/linux_gsg/build_dpdk.html.
sudo make install prefix=/usr
+ * Create dpdk-pmd folder
+
+ mkdir -p /usr/lib/dpdk-pmd
+
+ * Create symlinks to pmd drivers
+
+ find /usr/lib -type f -name 'librte_pmd*' | while read path ; do ln -s $path /usr/lib/dpdk-pmd/`echo $path | grep -o 'librte_.*so'` ; done
+
**Note 1:** You must run make install as the configuration of collectd with
DPDK expects DPDK to be installed somewhere.
**Note 3:** If you are not root then use sudo to make install DPDK to the
appropriate location.
+ **Note 4:** You **MUST** create symlink to a NIC driver lib. This way collectd
+ will be able to work with device bound to dpdk.
+
* Check that the DPDK library has been installed in `/usr/lib` or `/lib`:
ls /usr/lib | grep dpdk
* Generate the build script as specified below. (i.e. run `build.sh`).
* Configure collectd with the DPDK shared library:
- ./configure --with-libdpdk=/usr
+ ./configure LIBDPDK_CPPFLAGS="-I/usr/include/dpdk" LIBDPDK_LDFLAGS="-L/usr/lib"
+
+**Note:** Modify these flags according to specific environment setup.
+LIBDPDK_CPPFLAGS should contain path to dpdk headers and LIBDPDK_LDFLAGS should
+point out to dpdk libraries location.
### Build with the static DPDK library
* Run *configure* with the following CFLAGS:
- ./configure --with-libdpdk=/usr CFLAGS=" -lpthread -Wl,--whole-archive -Wl,-ldpdk -Wl,-lm -Wl,-lrt -Wl,-lpcap -Wl,-ldl -Wl,--no-whole-archive"
+ ./configure LIBDPDK_CPPFLAGS="-I/usr/include/dpdk" LIBDPDK_LDFLAGS="-L/usr/lib" CFLAGS=" -lpthread -Wl,--whole-archive -Wl,-ldpdk -Wl,-lm -Wl,-lrt -Wl,-lpcap -Wl,-ldl -Wl,--no-whole-archive"
* Make sure that dpdk and dpdkstat are enabled in the *configure* output.
Libraries:
...
libdpdk . . . . . . . . yes
-
+
Modules:
...
dpdkstat . . . . . . .yes