The 'XDP_RING_NEED_WAKEUP' and related flags are defined if_xdp.h, so after installing newer kernel, users have to update the kernel's header files, by doing: $ make headers_install INSTALL_HDR_PATH=/usr
Otherwise the following error shows: /usr/local/include/bpf/xsk.h: In function 'xsk_ring_prod__needs_wakeup': /usr/local/include/bpf/xsk.h:82:21: error: 'XDP_RING_NEED_WAKEUP' undeclared \ (first use in this function) return *r->flags & XDP_RING_NEED_WAKEUP; Reported-by: Tomek Osinski <[email protected]> Reported-at: https://osinstom.github.io/en/tutorial/ovs-afxdp-installation/ Signed-off-by: William Tu <[email protected]> --- Documentation/intro/install/afxdp.rst | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/intro/install/afxdp.rst b/Documentation/intro/install/afxdp.rst index c4685fa7ebac..2683d8301bb7 100644 --- a/Documentation/intro/install/afxdp.rst +++ b/Documentation/intro/install/afxdp.rst @@ -125,6 +125,7 @@ Second, go into the Linux source directory and build libbpf in the tools directory:: cd bpf-next/ + make headers_install INSTALL_HDR_PATH=/usr cd tools/lib/bpf/ make && make install make install_headers -- 2.7.4 _______________________________________________ dev mailing list [email protected] https://mail.openvswitch.org/mailman/listinfo/ovs-dev
