netdev - [PATCH iproute2-next v3 1/2] ip: PFCP device support

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Message-Id: <20240422120551.4616-2-wojciech.drewek@intel.com>
Date: Mon, 22 Apr 2024 14:05:50 +0200
From: Wojciech Drewek <wojciech.drewek@...el.com>
To: netdev@...r.kernel.org
Cc: dsahern@...il.com,
	stephen@...workplumber.org
Subject: [PATCH iproute2-next v3 1/2] ip: PFCP device support

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@...el.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 1bb4a99863b0..96f294a23752 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 066ad874eb0d..b981ac9125fa 100644
--- a/man/man8/ip-link.8.in
+++ b/man/man8/ip-link.8.in
@@ -250,6 +250,7 @@ ip-link \- network device configuration
 .BR netdevsim " |"
 .BR netkit " |"
 .BR nlmon " |"
+.BR pfcp " |"
 .BR rmnet " |"
 .BR sit " |"
 .BR vcan " | "
@@ -392,6 +393,9 @@ Link types:
 .BR nlmon
 - Netlink monitoring device
 .sp
+.BR pfcp
+- Packet Forwarding Control Protocol device
+.sp
 .BR rmnet
 - Qualcomm rmnet device
 .sp
@@ -2125,6 +2129,12 @@ 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