ap.h

 1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 * Tracepoint definitions for s390 ap bus related trace events
 4 *
 5 * There are two AP bus related tracepoint events defined here:
 6 * There is a tracepoint s390_ap_nqap event immediately after a request
 7 * has been pushed into the AP firmware queue with the NQAP AP command.
 8 * The other tracepoint s390_ap_dqap event fires immediately after a
 9 * reply has been pulled out of the AP firmware queue via DQAP AP command.
10 * The idea of these two trace events focuses on performance to measure
11 * the runtime of a crypto request/reply as close as possible at the
12 * firmware level. In combination with the two zcrypt tracepoints (see the
13 * zcrypt.h trace event definition file) this gives measurement data about
14 * the runtime of a request/reply within the zcrpyt and AP bus layer.
15 */
16
17#undef TRACE_SYSTEM
18#define TRACE_SYSTEM s390
19
20#if !defined(_TRACE_S390_AP_H) || defined(TRACE_HEADER_MULTI_READ)
21#define _TRACE_S390_AP_H
22
23#include <linux/tracepoint.h>
24
25DECLARE_EVENT_CLASS(s390_ap_nqapdqap_template,
26		    TP_PROTO(u16 card, u16 dom, u32 status, u64 psmid),
27		    TP_ARGS(card, dom, status, psmid),
28		    TP_STRUCT__entry(
29			    __field(u16, card)
30			    __field(u16, dom)
31			    __field(u32, status)
32			    __field(u64, psmid)),
33		    TP_fast_assign(
34			    __entry->card = card;
35			    __entry->dom = dom;
36			    __entry->status = status;
37			    __entry->psmid = psmid;),
38		    TP_printk("card=%u dom=%u status=0x%08x psmid=0x%016lx",
39			      (unsigned short)__entry->card,
40			      (unsigned short)__entry->dom,
41			      (unsigned int)__entry->status,
42			      (unsigned long)__entry->psmid)
43);
44
45/**
46 * trace_s390_ap_nqap - ap msg nqap tracepoint function
47 * @card:   Crypto card number addressed.
48 * @dom:    Domain within the crypto card addressed.
49 * @status: AP queue status (GR1 on return of nqap).
50 * @psmid:  Unique id identifying this request/reply.
51 *
52 * Called immediately after a request has been enqueued into
53 * the AP firmware queue with the NQAP command.
54 */
55DEFINE_EVENT(s390_ap_nqapdqap_template,
56	     s390_ap_nqap,
57	     TP_PROTO(u16 card, u16 dom, u32 status, u64 psmid),
58	     TP_ARGS(card, dom, status, psmid)
59);
60
61/**
62 * trace_s390_ap_dqap - ap msg dqap tracepoint function
63 * @card:  Crypto card number addressed.
64 * @dom:   Domain within the crypto card addressed.
65 * @status: AP queue status (GR1 on return of dqap).
66 * @psmid: Unique id identifying this request/reply.
67 *
68 * Called immediately after a reply has been dequeued from
69 * the AP firmware queue with the DQAP command.
70 */
71DEFINE_EVENT(s390_ap_nqapdqap_template,
72	     s390_ap_dqap,
73	     TP_PROTO(u16 card, u16 dom, u32 status, u64 psmid),
74	     TP_ARGS(card, dom, status, psmid)
75);
76
77#endif /* _TRACE_S390_AP_H */
78
79/* This part must be outside protection */
80
81#undef TRACE_INCLUDE_PATH
82#undef TRACE_INCLUDE_FILE
83
84#define TRACE_INCLUDE_PATH asm/trace
85#define TRACE_INCLUDE_FILE ap
86
87#include <trace/define_trace.h>