drivers/s390/cio/vfio_ccw_trace.h

Source file repositories/reference/linux-study-clean/drivers/s390/cio/vfio_ccw_trace.h

File Facts

System
Linux kernel
Corpus path
drivers/s390/cio/vfio_ccw_trace.h
Extension
.h
Size
3085 bytes
Lines
147
Domain
Driver Families
Bucket
drivers/s390
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

#include "cio.h"

#undef TRACE_SYSTEM
#define TRACE_SYSTEM vfio_ccw

#if !defined(_VFIO_CCW_TRACE_) || defined(TRACE_HEADER_MULTI_READ)
#define _VFIO_CCW_TRACE_

#include <linux/tracepoint.h>

TRACE_EVENT(vfio_ccw_chp_event,
	TP_PROTO(struct subchannel_id schid,
		 int mask,
		 int event),
	TP_ARGS(schid, mask, event),

	TP_STRUCT__entry(
		__field(u8, cssid)
		__field(u8, ssid)
		__field(u16, sch_no)
		__field(int, mask)
		__field(int, event)
	),

	TP_fast_assign(
		__entry->cssid = schid.cssid;
		__entry->ssid = schid.ssid;
		__entry->sch_no = schid.sch_no;
		__entry->mask = mask;
		__entry->event = event;
	),

	TP_printk("schid=%x.%x.%04x mask=0x%x event=%d",
		  __entry->cssid,
		  __entry->ssid,
		  __entry->sch_no,
		  __entry->mask,
		  __entry->event)
);

TRACE_EVENT(vfio_ccw_fsm_async_request,
	TP_PROTO(struct subchannel_id schid,
		 int command,
		 int errno),
	TP_ARGS(schid, command, errno),

	TP_STRUCT__entry(
		__field(u8, cssid)
		__field(u8, ssid)
		__field(u16, sch_no)
		__field(int, command)
		__field(int, errno)
	),

	TP_fast_assign(
		__entry->cssid = schid.cssid;
		__entry->ssid = schid.ssid;
		__entry->sch_no = schid.sch_no;
		__entry->command = command;
		__entry->errno = errno;
	),

	TP_printk("schid=%x.%x.%04x command=0x%x errno=%d",
		  __entry->cssid,
		  __entry->ssid,
		  __entry->sch_no,
		  __entry->command,
		  __entry->errno)
);

TRACE_EVENT(vfio_ccw_fsm_event,
	TP_PROTO(struct subchannel_id schid, int state, int event),
	TP_ARGS(schid, state, event),

	TP_STRUCT__entry(
		__field(u8, cssid)
		__field(u8, ssid)
		__field(u16, schno)
		__field(int, state)
		__field(int, event)
	),

	TP_fast_assign(
		__entry->cssid = schid.cssid;
		__entry->ssid = schid.ssid;
		__entry->schno = schid.sch_no;
		__entry->state = state;
		__entry->event = event;
	),

Annotation

Implementation Notes