From: Arkadi Sharshevsky <arkadis@mellanox.com>
Date: Thu, 31 Aug 2017 17:59:12 +0200
Subject: devlink: Add IPv6 header for dpipe
Patch-mainline: v4.14-rc1
Git-commit: 1797f5b3cf0b3a73c42b89f7a8fd897417373730
References: bsc#1112374

This will be used by the IPv6 host table which will be introduced in the
following patches. The fields in the header are added per-use. This header
is global and can be reused by many drivers.

Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 include/net/devlink.h        |    1 +
 include/uapi/linux/devlink.h |    5 +++++
 net/core/devlink.c           |   17 +++++++++++++++++
 3 files changed, 23 insertions(+)

--- a/include/net/devlink.h
+++ b/include/net/devlink.h
@@ -330,6 +330,7 @@ int devlink_dpipe_match_put(struct sk_bu
 			    struct devlink_dpipe_match *match);
 extern struct devlink_dpipe_header devlink_dpipe_header_ethernet;
 extern struct devlink_dpipe_header devlink_dpipe_header_ipv4;
+extern struct devlink_dpipe_header devlink_dpipe_header_ipv6;
 
 #else
 
--- a/include/uapi/linux/devlink.h
+++ b/include/uapi/linux/devlink.h
@@ -234,9 +234,14 @@ enum devlink_dpipe_field_ipv4_id {
 	DEVLINK_DPIPE_FIELD_IPV4_DST_IP,
 };
 
+enum devlink_dpipe_field_ipv6_id {
+	DEVLINK_DPIPE_FIELD_IPV6_DST_IP,
+};
+
 enum devlink_dpipe_header_id {
 	DEVLINK_DPIPE_HEADER_ETHERNET,
 	DEVLINK_DPIPE_HEADER_IPV4,
+	DEVLINK_DPIPE_HEADER_IPV6,
 };
 
 #endif /* _UAPI_LINUX_DEVLINK_H_ */
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -63,6 +63,23 @@ struct devlink_dpipe_header devlink_dpip
 };
 EXPORT_SYMBOL(devlink_dpipe_header_ipv4);
 
+static struct devlink_dpipe_field devlink_dpipe_fields_ipv6[] = {
+	{
+		.name = "destination ip",
+		.id = DEVLINK_DPIPE_FIELD_IPV6_DST_IP,
+		.bitwidth = 128,
+	},
+};
+
+struct devlink_dpipe_header devlink_dpipe_header_ipv6 = {
+	.name = "ipv6",
+	.id = DEVLINK_DPIPE_HEADER_IPV6,
+	.fields = devlink_dpipe_fields_ipv6,
+	.fields_count = ARRAY_SIZE(devlink_dpipe_fields_ipv6),
+	.global = true,
+};
+EXPORT_SYMBOL(devlink_dpipe_header_ipv6);
+
 EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_hwmsg);
 
 static LIST_HEAD(devlink_list);