xdp: remove documentation - feature not supported in VyOS 1.3

docs/_include/interface-xdp.txt

@@ -1,27 +0,0 @@
-.. cfgcmd:: set interfaces {{ var0 }} <interface> xdp
-
-  Enable support for Linux :abbr:`XDP (eXpress Data Path)` on recent 1.3 rolling
-  releases. You must enable it for every interface which should participate in
-  the XDP forwarding.
-
-  XDP is an eBPF based high performance data path merged in the Linux kernel
-  since version 4.8. The idea behind XDP is to add an early hook in the RX path
-  of the kernel, and let a user supplied eBPF program decide the fate of the
-  packet. The hook is placed in the NIC driver just after the interrupt
-  processing, and before any memory allocation needed by the network stack
-  itself, because memory allocation can be an expensive operation.
-
-  .. warning:: This is highly experimental!
-
-  .. note:: Enabling this feature will break any form of NAT or Firewalling on
-    this interface, as XDP is handled way earlier in the driver then iptables/
-    nftables.
-
-  Enabling this feature will only load the XDP router code as described here:
-  https://blog.apnic.net/2020/04/30/how-to-build-an-xdp-based-bgp-peering-router/
-
-  Example:
-
-  .. code-block:: none
-
-    set interfaces {{ var0 }} {{ var1 }} xdp

docs/configuration/interfaces/bonding.rst

@@ -271,13 +271,6 @@ Bond options
    The maximum number of targets that can be specified is 16. The default value
    is no IP address.
 
-Offloading
-----------
-
-.. cmdinclude:: /_include/interface-xdp.txt
-   :var0: bonding
-   :var1: bond0
-
 VLAN
 ====
 

docs/configuration/interfaces/ethernet.rst

@@ -107,11 +107,6 @@ Offloading
   - it does not increase hardware device interrupt rate (although it does
     introduce inter-processor interrupts (IPIs)).
 
-
-.. cmdinclude:: /_include/interface-xdp.txt
-   :var0: ethernet
-   :var1: eth0
-
 Authentication (EAPoL)
 ----------------------
 
@@ -288,29 +283,3 @@ Operation
         BR margin, min          : 0%
         Vendor SN               : FNS092xxxxx
         Date code               : 0506xx
-
-.. stop_vyoslinter
-
-.. opcmd:: show interfaces ethernet <interface> xdp
-
-   Display XDP forwarding statistics
-
-   .. code-block:: none
-
-     vyos@vyos:~$ show interfaces ethernet eth1 xdp
-
-     Collecting stats from BPF map
-      - BPF map (bpf_map_type:6) id:176 name:xdp_stats_map key_size:4 value_size:16 max_entries:5
-     XDP-action
-     XDP_ABORTED            0 pkts (         0 pps)           0 Kbytes (     0 Mbits/s) period:0.250340
-     XDP_DROP               0 pkts (         0 pps)           0 Kbytes (     0 Mbits/s) period:0.250317
-     XDP_PASS               0 pkts (         0 pps)           0 Kbytes (     0 Mbits/s) period:0.250314
-     XDP_TX                 0 pkts (         0 pps)           0 Kbytes (     0 Mbits/s) period:0.250313
-     XDP_REDIRECT           0 pkts (         0 pps)           0 Kbytes (     0 Mbits/s) period:0.250313
-
-     XDP-action
-     XDP_ABORTED            0 pkts (         0 pps)           0 Kbytes (     0 Mbits/s) period:2.000410
-     XDP_DROP               0 pkts (         0 pps)           0 Kbytes (     0 Mbits/s) period:2.000414
-     XDP_PASS               0 pkts (         0 pps)           0 Kbytes (     0 Mbits/s) period:2.000414
-     XDP_TX                 0 pkts (         0 pps)           0 Kbytes (     0 Mbits/s) period:2.000414
-     XDP_REDIRECT           0 pkts (         0 pps)           0 Kbytes (     0 Mbits/s) period:2.000414