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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2022-08-02 10:06:12 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2022-08-02 10:06:12 -0700
commit8bb5e7f4dcd9b9ef22a3ea25c9066a8a968f12dd (patch)
tree0f1383880607a227142f9388a066959926233ff1 /include/uapi/linux/mctp.h
parent2a96271fb66c499e4a89d76a89d3d01170c10bef (diff)
parent7c744d00990ea999d27f306f6db5ccb61b1304b2 (diff)
Merge branch 'next' into for-linus
Prepare input updates for 5.20 (or 6.0) merge window.
Diffstat (limited to 'include/uapi/linux/mctp.h')
-rw-r--r--include/uapi/linux/mctp.h18
1 files changed, 18 insertions, 0 deletions
diff --git a/include/uapi/linux/mctp.h b/include/uapi/linux/mctp.h
index 07b0318716fc..154ab56651f1 100644
--- a/include/uapi/linux/mctp.h
+++ b/include/uapi/linux/mctp.h
@@ -44,7 +44,25 @@ struct sockaddr_mctp_ext {
#define MCTP_TAG_MASK 0x07
#define MCTP_TAG_OWNER 0x08
+#define MCTP_TAG_PREALLOC 0x10
#define MCTP_OPT_ADDR_EXT 1
+#define SIOCMCTPALLOCTAG (SIOCPROTOPRIVATE + 0)
+#define SIOCMCTPDROPTAG (SIOCPROTOPRIVATE + 1)
+
+struct mctp_ioc_tag_ctl {
+ mctp_eid_t peer_addr;
+
+ /* For SIOCMCTPALLOCTAG: must be passed as zero, kernel will
+ * populate with the allocated tag value. Returned tag value will
+ * always have TO and PREALLOC set.
+ *
+ * For SIOCMCTPDROPTAG: userspace provides tag value to drop, from
+ * a prior SIOCMCTPALLOCTAG call (and so must have TO and PREALLOC set).
+ */
+ __u8 tag;
+ __u16 flags;
+};
+
#endif /* __UAPI_MCTP_H */