[PATCH net-next 1/6] uapi: if_ether: add ETH_P_RTAG for IEEE 802.1CB R-TAG
From: Xiaoliang Yang <hidden>
Date: 2026-07-17 09:55:20
Also in:
linux-kselftest, lkml
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
The IEEE 802.1CB-2017 standard defines the Redundancy Tag (R-TAG) with EtherType 0xF1C1. Add ETH_P_RTAG to the kernel's EtherType definitions so that it can be used by tc classifiers (e.g. cls_flower) and the FRER tc action for stream identification on the ingress path. Signed-off-by: Xiaoliang Yang <redacted> --- include/uapi/linux/if_ether.h | 1 + 1 file changed, 1 insertion(+)
diff --git a/include/uapi/linux/if_ether.h b/include/uapi/linux/if_ether.h
index fb5efc8e06cc..2d909078cde1 100644
--- a/include/uapi/linux/if_ether.h
+++ b/include/uapi/linux/if_ether.h@@ -122,6 +122,7 @@ #define ETH_P_DSA_8021Q 0xDADB /* Fake VLAN Header for DSA [ NOT AN OFFICIALLY REGISTERED ID ] */ #define ETH_P_DSA_A5PSW 0xE001 /* A5PSW Tag Value [ NOT AN OFFICIALLY REGISTERED ID ] */ #define ETH_P_IFE 0xED3E /* ForCES inter-FE LFB type */ +#define ETH_P_RTAG 0xF1C1 /* Redundancy Tag (IEEE 802.1CB) */ #define ETH_P_AF_IUCV 0xFBFB /* IBM af_iucv [ NOT AN OFFICIALLY REGISTERED ID ] */ #define ETH_P_NXP_NETC 0xFD3A /* NXP NETC DSA [ NOT AN OFFICIALLY REGISTERED ID ] */
--
2.17.1