AF_XDP will not work on 32-bit kernels before version 5.4.
Document this restriction in the driver guide.
Signed-off-by: Ciara Loftus <ciara.loftus@intel.com>
* For PMD zero copy, it requires kernel version later than v5.4-rc1;
* For shared_umem, it requires kernel version v5.10 or later and libbpf version
v0.2.0 or later.
* For PMD zero copy, it requires kernel version later than v5.4-rc1;
* For shared_umem, it requires kernel version v5.10 or later and libbpf version
v0.2.0 or later.
+* For 32-bit OS, a kernel with version 5.4 or later is required.
Set up an af_xdp interface
-----------------------------
Set up an af_xdp interface
-----------------------------