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| -rw-r--r-- | Documentation/intro/install/afxdp.rst | 39 |
1 files changed, 8 insertions, 31 deletions
diff --git a/Documentation/intro/install/afxdp.rst b/Documentation/intro/install/afxdp.rst index bfef49860..a4f0b87fe 100644 --- a/Documentation/intro/install/afxdp.rst +++ b/Documentation/intro/install/afxdp.rst @@ -88,7 +88,7 @@ Build requirements In addition to the requirements described in :doc:`general`, building Open vSwitch with AF_XDP will require the following: -- libbpf from kernel source tree (kernel 5.0.0 or later) +- ``libbpf`` and ``libxdp`` (if version of ``libbpf`` if higher than ``0.6``). - Linux kernel XDP support, with the following options (required) @@ -125,41 +125,18 @@ vSwitch with AF_XDP will require the following: Installing ---------- For OVS to use AF_XDP netdev, it has to be configured with LIBBPF support. -First, clone a recent version of Linux bpf-next tree:: - git clone git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git +First, install ``libbpf`` and ``libxdp``. For example, on Fedora these +libraries along with development headers can be obtained by installing +``libbpf-devel`` and ``libxdp-devel`` packages. For Ubuntu that will be +``libbpf-dev`` package with additional ``libxdp-dev`` on Ubuntu 22.10 +or later. -Second, go into the Linux source directory and build libbpf in the tools -directory:: - - cd bpf-next/ - cd tools/lib/bpf/ - make && make install - make install_headers - -.. note:: - Make sure xsk.h and bpf.h are installed in system's library path, - e.g. /usr/local/include/bpf/ or /usr/include/bpf/ - -Make sure the libbpf.so is installed correctly:: - - ldconfig - ldconfig -p | grep libbpf - -.. note:: - Check /etc/ld.so.conf if libbpf is installed but can not be found by - ldconfig. - -Third, ensure the standard OVS requirements are installed and +Next, ensure the standard OVS requirements are installed and bootstrap/configure the package:: ./boot.sh && ./configure --enable-afxdp -.. note:: - If you encounter "WARNING: bpf/libbpf.h: present but cannot be compiled", - check the Linux headers are in line with libbpf. For example, in Ubuntu, - check the installed linux-headers* and linux-libc-dev* dpkg. - Finally, build and install OVS:: make && make install @@ -182,7 +159,7 @@ If a test case fails, check the log at:: Setup AF_XDP netdev ------------------- -Before running OVS with AF_XDP, make sure the libbpf, libelf, and libnuma are +Before running OVS with AF_XDP, make sure the libbpf and libnuma are set-up right:: ldd vswitchd/ovs-vswitchd |