| Message ID | 1579798991-41829-1-git-send-email-u9012063@gmail.com |
|---|---|
| State | Accepted |
| Commit | 20dac08fdcce4b7fda1d07add3b346aa9751cfbc |
| Headers | show |
| Series | [ovs-dev,PATCHv2] docs: Add header install command for afxdp. | expand |
On Thu, Jan 23, 2020 at 09:03:11AM -0800, William Tu wrote: > The 'XDP_RING_NEED_WAKEUP' and related flags are defined if_xdp.h, so if > users are building their own 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 <osinstom@gmail.com> > Reported-at: https://osinstom.github.io/en/tutorial/ovs-afxdp-installation/ > Signed-off-by: William Tu <u9012063@gmail.com> > Acked-by: Ben Pfaff <blp@ovn.org> > --- > Documentation/intro/install/afxdp.rst | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/Documentation/intro/install/afxdp.rst b/Documentation/intro/install/afxdp.rst > index c4685fa7ebac..99003e4dbdb2 100644 > --- a/Documentation/intro/install/afxdp.rst > +++ b/Documentation/intro/install/afxdp.rst > @@ -108,6 +108,14 @@ vSwitch with AF_XDP will require the following: > > * CONFIG_XDP_SOCKETS_DIAG=y (Debugging) > > +- If you're building your own kernel, be sure that you're installing kernel > + headers too. For example, with the following command:: > + > + make headers_install INSTALL_HDR_PATH=/usr > + > +- If you're using kernel from the distribution, be sure that corresponding > + kernel headers package installed. > + > - Once your AF_XDP-enabled kernel is ready, if possible, run > **./xdpsock -r -N -z -i <your device>** under linux/samples/bpf. > This is an OVS independent benchmark tools for AF_XDP. > -- > 2.7.4 > I applied to master, thanks
diff --git a/Documentation/intro/install/afxdp.rst b/Documentation/intro/install/afxdp.rst index c4685fa7ebac..99003e4dbdb2 100644 --- a/Documentation/intro/install/afxdp.rst +++ b/Documentation/intro/install/afxdp.rst @@ -108,6 +108,14 @@ vSwitch with AF_XDP will require the following: * CONFIG_XDP_SOCKETS_DIAG=y (Debugging) +- If you're building your own kernel, be sure that you're installing kernel + headers too. For example, with the following command:: + + make headers_install INSTALL_HDR_PATH=/usr + +- If you're using kernel from the distribution, be sure that corresponding + kernel headers package installed. + - Once your AF_XDP-enabled kernel is ready, if possible, run **./xdpsock -r -N -z -i <your device>** under linux/samples/bpf. This is an OVS independent benchmark tools for AF_XDP.