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Message-Id: <20170824064010.1646-3-jiri@resnulli.us>
Date:   Thu, 24 Aug 2017 08:40:00 +0200
From:   Jiri Pirko <jiri@...nulli.us>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, arkadis@...lanox.com, idosch@...lanox.com,
        mlxsw@...lanox.com
Subject: [patch net-next 02/12] devlink: Add IPv4 header for dpipe

From: Arkadi Sharshevsky <arkadis@...lanox.com>

This will be used by the IPv4 host table which will be introduced in the
following patches. This header is global and can be reused by many
drivers.

Signed-off-by: Arkadi Sharshevsky <arkadis@...lanox.com>
Signed-off-by: Jiri Pirko <jiri@...lanox.com>
---
 include/net/devlink.h        |  1 +
 include/uapi/linux/devlink.h |  5 +++++
 net/core/devlink.c           | 17 +++++++++++++++++
 3 files changed, 23 insertions(+)

diff --git a/include/net/devlink.h b/include/net/devlink.h
index ddb8b52..8ff8a6f 100644
--- a/include/net/devlink.h
+++ b/include/net/devlink.h
@@ -329,6 +329,7 @@ int devlink_dpipe_action_put(struct sk_buff *skb,
 int devlink_dpipe_match_put(struct sk_buff *skb,
 			    struct devlink_dpipe_match *match);
 extern struct devlink_dpipe_header devlink_dpipe_header_ethernet;
+extern struct devlink_dpipe_header devlink_dpipe_header_ipv4;
 
 #else
 
diff --git a/include/uapi/linux/devlink.h b/include/uapi/linux/devlink.h
index a855f8d..6c17254 100644
--- a/include/uapi/linux/devlink.h
+++ b/include/uapi/linux/devlink.h
@@ -230,8 +230,13 @@ enum devlink_dpipe_field_ethernet_id {
 	DEVLINK_DPIPE_FIELD_ETHERNET_DST_MAC,
 };
 
+enum devlink_dpipe_field_ipv4_id {
+	DEVLINK_DPIPE_FIELD_IPV4_DST_IP,
+};
+
 enum devlink_dpipe_header_id {
 	DEVLINK_DPIPE_HEADER_ETHERNET,
+	DEVLINK_DPIPE_HEADER_IPV4,
 };
 
 #endif /* _UAPI_LINUX_DEVLINK_H_ */
diff --git a/net/core/devlink.c b/net/core/devlink.c
index 4f6f3d6..fcf5dd6 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -46,6 +46,23 @@ struct devlink_dpipe_header devlink_dpipe_header_ethernet = {
 };
 EXPORT_SYMBOL(devlink_dpipe_header_ethernet);
 
+static struct devlink_dpipe_field devlink_dpipe_fields_ipv4[] = {
+	{
+		.name = "destination ip",
+		.id = DEVLINK_DPIPE_FIELD_IPV4_DST_IP,
+		.bitwidth = 32,
+	},
+};
+
+struct devlink_dpipe_header devlink_dpipe_header_ipv4 = {
+	.name = "ipv4",
+	.id = DEVLINK_DPIPE_HEADER_IPV4,
+	.fields = devlink_dpipe_fields_ipv4,
+	.fields_count = ARRAY_SIZE(devlink_dpipe_fields_ipv4),
+	.global = true,
+};
+EXPORT_SYMBOL(devlink_dpipe_header_ipv4);
+
 EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_hwmsg);
 
 static LIST_HEAD(devlink_list);
-- 
2.9.3

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