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authorJeremy Kerr <jk@codeconstruct.com.au>2021-09-29 15:26:10 +0800
committerDavid S. Miller <davem@davemloft.net>2021-09-29 11:00:11 +0100
commit4f9e1ba6de45aa8797a83f1fe5b82ec4bac16899 (patch)
tree5af27668529ef6500809810eef7c4d2c374c68d3 /include
parent7b14e15ae6f4850392800482efb54d5cf4ae300c (diff)
downloadlinux-4f9e1ba6de45aa8797a83f1fe5b82ec4bac16899.tar.bz2
mctp: Add tracepoints for tag/key handling
The tag allocation, release and bind events are somewhat opaque outside the kernel; this change adds a few tracepoints to assist in instrumentation and debugging. Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/trace/events/mctp.h75
1 files changed, 75 insertions, 0 deletions
diff --git a/include/trace/events/mctp.h b/include/trace/events/mctp.h
new file mode 100644
index 000000000000..175b057c507f
--- /dev/null
+++ b/include/trace/events/mctp.h
@@ -0,0 +1,75 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM mctp
+
+#if !defined(_TRACE_MCTP_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_MCTP_H
+
+#include <linux/tracepoint.h>
+
+#ifndef __TRACE_MCTP_ENUMS
+#define __TRACE_MCTP_ENUMS
+enum {
+ MCTP_TRACE_KEY_TIMEOUT,
+ MCTP_TRACE_KEY_REPLIED,
+ MCTP_TRACE_KEY_INVALIDATED,
+ MCTP_TRACE_KEY_CLOSED,
+};
+#endif /* __TRACE_MCTP_ENUMS */
+
+TRACE_DEFINE_ENUM(MCTP_TRACE_KEY_TIMEOUT);
+TRACE_DEFINE_ENUM(MCTP_TRACE_KEY_REPLIED);
+TRACE_DEFINE_ENUM(MCTP_TRACE_KEY_INVALIDATED);
+TRACE_DEFINE_ENUM(MCTP_TRACE_KEY_CLOSED);
+
+TRACE_EVENT(mctp_key_acquire,
+ TP_PROTO(const struct mctp_sk_key *key),
+ TP_ARGS(key),
+ TP_STRUCT__entry(
+ __field(__u8, paddr)
+ __field(__u8, laddr)
+ __field(__u8, tag)
+ ),
+ TP_fast_assign(
+ __entry->paddr = key->peer_addr;
+ __entry->laddr = key->local_addr;
+ __entry->tag = key->tag;
+ ),
+ TP_printk("local %d, peer %d, tag %1x",
+ __entry->laddr,
+ __entry->paddr,
+ __entry->tag
+ )
+);
+
+TRACE_EVENT(mctp_key_release,
+ TP_PROTO(const struct mctp_sk_key *key, int reason),
+ TP_ARGS(key, reason),
+ TP_STRUCT__entry(
+ __field(__u8, paddr)
+ __field(__u8, laddr)
+ __field(__u8, tag)
+ __field(int, reason)
+ ),
+ TP_fast_assign(
+ __entry->paddr = key->peer_addr;
+ __entry->laddr = key->local_addr;
+ __entry->tag = key->tag;
+ __entry->reason = reason;
+ ),
+ TP_printk("local %d, peer %d, tag %1x %s",
+ __entry->laddr,
+ __entry->paddr,
+ __entry->tag,
+ __print_symbolic(__entry->reason,
+ { MCTP_TRACE_KEY_TIMEOUT, "timeout" },
+ { MCTP_TRACE_KEY_REPLIED, "replied" },
+ { MCTP_TRACE_KEY_INVALIDATED, "invalidated" },
+ { MCTP_TRACE_KEY_CLOSED, "closed" })
+ )
+);
+
+#endif
+
+#include <trace/define_trace.h>