[PATCH iproute2-next 1/2] ip: PFCP device support

[Wojciech Drewek <wojciech.drewek@intel.com>]

Packet Forwarding Control Protocol is a 3GPP Protocol defined in
TS 29.244 [1]. Add support for PFCP device type in ip link.
It is capable of receiving PFCP messages and extracting its
metadata (session ID).

Its only purpose is to be used together with tc flower to create
SW/HW filters.

PFCP module does not take any netlink attributes so there is no
need to parse any args. Add new sections to the man to let the
user know about new device type.

[1] https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=3111

Signed-off-by: Wojciech Drewek <wojciech.drewek@intel.com>
---
 ip/iplink.c           |  2 +-
 man/man8/ip-link.8.in | 10 ++++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/ip/iplink.c b/ip/iplink.c
index 95314af5ab1c..73d4cd428047 100644
--- a/ip/iplink.c
+++ b/ip/iplink.c
@@ -44,7 +44,7 @@ void iplink_types_usage(void)
 		"          ip6erspan | ip6gre | ip6gretap | ip6tnl |\n"
 		"          ipip | ipoib | ipvlan | ipvtap |\n"
 		"          macsec | macvlan | macvtap | netdevsim |\n"
-		"          netkit | nlmon | rmnet | sit | team | team_slave |\n"
+		"          netkit | nlmon | pfcp | rmnet | sit | team | team_slave |\n"
 		"          vcan | veth | vlan | vrf | vti | vxcan | vxlan | wwan |\n"
 		"          xfrm | virt_wifi }\n");
 }
diff --git a/man/man8/ip-link.8.in b/man/man8/ip-link.8.in
index 31e2d7f0f5b8..2654f8c361ae 100644
--- a/man/man8/ip-link.8.in
+++ b/man/man8/ip-link.8.in
@@ -249,6 +249,7 @@ ip-link \- network device configuration
 .BR netdevsim " |"
 .BR netkit " |"
 .BR nlmon " |"
+.BR pfcp " |"
 .BR rmnet " |"
 .BR sit " |"
 .BR vcan " | "
@@ -391,6 +392,9 @@ Link types:
 .BR nlmon
 - Netlink monitoring device
 .sp
+.BR pfcp
+- Packet Forwarding Control Protocol device
+.sp
 .BR rmnet
 - Qualcomm rmnet device
 .sp
@@ -2124,6 +2128,12 @@ the following additional arguments are supported:
 .BI restart_count " RESTART_COUNT "
 - GTP instance restart counter
 
+.TP
+PFCP Type Support
+For a link of type
+.I PFCP
+no additional arguments are supported
+
 .in -8
 
 .SS ip link delete - delete virtual link
-- 
2.40.1