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Date:   Thu, 29 Jul 2021 10:20:42 +0800
From:   Jeremy Kerr <jk@...econstruct.com.au>
To:     netdev@...r.kernel.org
Cc:     Matt Johnston <matt@...econstruct.com.au>,
        Andrew Jeffery <andrew@...id.au>,
        Jakub Kicinski <kuba@...nel.org>,
        "David S. Miller" <davem@...emloft.net>
Subject: [PATCH net-next v4 04/15] mctp: Add sockaddr_mctp to uapi

This change introduces the user-visible MCTP header, containing the
protocol-specific addressing definitions.

Signed-off-by: Jeremy Kerr <jk@...econstruct.com.au>

---
v2:
 - include MCTP_ADDR_NULL and MCTP_TAG_* definitions
v3:
 - don't use GENMASK/BIT in uapi
---
 include/uapi/linux/mctp.h | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/include/uapi/linux/mctp.h b/include/uapi/linux/mctp.h
index 2640a589c14c..52b54d13f385 100644
--- a/include/uapi/linux/mctp.h
+++ b/include/uapi/linux/mctp.h
@@ -9,7 +9,28 @@
 #ifndef __UAPI_MCTP_H
 #define __UAPI_MCTP_H
 
+#include <linux/types.h>
+
+typedef __u8			mctp_eid_t;
+
+struct mctp_addr {
+	mctp_eid_t		s_addr;
+};
+
 struct sockaddr_mctp {
+	unsigned short int	smctp_family;
+	int			smctp_network;
+	struct mctp_addr	smctp_addr;
+	__u8			smctp_type;
+	__u8			smctp_tag;
 };
 
+#define MCTP_NET_ANY		0x0
+
+#define MCTP_ADDR_NULL		0x00
+#define MCTP_ADDR_ANY		0xff
+
+#define MCTP_TAG_MASK		0x07
+#define MCTP_TAG_OWNER		0x08
+
 #endif /* __UAPI_MCTP_H */
-- 
2.30.2

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