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From: Justin Iurman <justin.iurman@uliege.be>
To: netdev@vger.kernel.org
Cc: davem@davemloft.net,
	dsahern@kernel.org,
	edumazet@google.com,
	kuba@kernel.org,
	pabeni@redhat.com,
	linux-kernel@vger.kernel.org,
	justin.iurman@uliege.be
Subject: [PATCH net-next v2 1/3] uapi: ioam6: API for netlink multicast events
Date: Thu, 22 Feb 2024 14:42:18 +0100
Message-Id: <20240222134220.16698-2-justin.iurman@uliege.be>
In-Reply-To: <20240222134220.16698-1-justin.iurman@uliege.be>
References: <20240222134220.16698-1-justin.iurman@uliege.be>
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Add new api to support ioam6 events for generic netlink multicast. A
first "trace" event is added to the list of ioam6 events, which will
represent an IOAM Pre-allocated (or Incremental) Trace Option-Type. It
provides another solution to share IOAM data with user space.

Suggested-By: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Justin Iurman <justin.iurman@uliege.be>
---
 include/uapi/linux/ioam6_genl.h | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/include/uapi/linux/ioam6_genl.h b/include/uapi/linux/ioam6_genl.h
index ca4b22833754..1733fbc51fb5 100644
--- a/include/uapi/linux/ioam6_genl.h
+++ b/include/uapi/linux/ioam6_genl.h
@@ -49,4 +49,24 @@ enum {
 
 #define IOAM6_CMD_MAX (__IOAM6_CMD_MAX - 1)
 
+#define IOAM6_GENL_EV_GRP_NAME "ioam6_events"
+
+enum ioam6_event_type {
+	IOAM6_EVENT_UNSPEC,
+	IOAM6_EVENT_TRACE,
+};
+
+enum ioam6_event_attr {
+	IOAM6_EVENT_ATTR_UNSPEC,
+
+	IOAM6_EVENT_ATTR_TRACE_NAMESPACE,	/* u16 */
+	IOAM6_EVENT_ATTR_TRACE_NODELEN,		/* u8 */
+	IOAM6_EVENT_ATTR_TRACE_TYPE,		/* u32 */
+	IOAM6_EVENT_ATTR_TRACE_DATA,		/* Binary */
+
+	__IOAM6_EVENT_ATTR_MAX
+};
+
+#define IOAM6_EVENT_ATTR_MAX (__IOAM6_EVENT_ATTR_MAX - 1)
+
 #endif /* _UAPI_LINUX_IOAM6_GENL_H */
-- 
2.34.1