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| author | William Tu <u9012063@gmail.com> | 2020-01-23 09:03:11 -0800 |
|---|---|---|
| committer | William Tu <u9012063@gmail.com> | 2020-01-29 10:54:45 -0800 |
| commit | 20dac08fdcce4b7fda1d07add3b346aa9751cfbc (patch) | |
| tree | 86666aba997969796636febbe48c099052aa0676 /Documentation/intro | |
| parent | a867c010ee9183885ee9d3eb76a0005c075c4d2e (diff) | |
| download | openvswitch-20dac08fdcce4b7fda1d07add3b346aa9751cfbc.tar.gz | |
docs: Add header install command for afxdp.
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>
Signed-off-by: William Tu <u9012063@gmail.com>
Diffstat (limited to 'Documentation/intro')
| -rw-r--r-- | Documentation/intro/install/afxdp.rst | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/intro/install/afxdp.rst b/Documentation/intro/install/afxdp.rst index c4685fa7e..99003e4db 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. |