drivers/hv/hv_trace.h

Source file repositories/reference/linux-study-clean/drivers/hv/hv_trace.h

File Facts

System
Linux kernel
Corpus path
drivers/hv/hv_trace.h
Extension
.h
Size
11178 bytes
Lines
362
Domain
Driver Families
Bucket
drivers/hv
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

#undef TRACE_SYSTEM
#define TRACE_SYSTEM hyperv

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

#include <linux/tracepoint.h>

DECLARE_EVENT_CLASS(vmbus_hdr_msg,
	TP_PROTO(const struct vmbus_channel_message_header *hdr),
	TP_ARGS(hdr),
	TP_STRUCT__entry(__field(unsigned int, msgtype)),
	TP_fast_assign(__entry->msgtype = hdr->msgtype;),
	TP_printk("msgtype=%u", __entry->msgtype)
);

DEFINE_EVENT(vmbus_hdr_msg, vmbus_on_msg_dpc,
	TP_PROTO(const struct vmbus_channel_message_header *hdr),
	TP_ARGS(hdr)
);

DEFINE_EVENT(vmbus_hdr_msg, vmbus_on_message,
	TP_PROTO(const struct vmbus_channel_message_header *hdr),
	TP_ARGS(hdr)
);

TRACE_EVENT(vmbus_onoffer,
	    TP_PROTO(const struct vmbus_channel_offer_channel *offer),
	    TP_ARGS(offer),
	    TP_STRUCT__entry(
		    __field(u32, child_relid)
		    __field(u8, monitorid)
		    __field(u16, is_ddc_int)
		    __field(u32, connection_id)
		    __array(char, if_type, 16)
		    __array(char, if_instance, 16)
		    __field(u16, chn_flags)
		    __field(u16, mmio_mb)
		    __field(u16, sub_idx)
		    ),
	    TP_fast_assign(__entry->child_relid = offer->child_relid;
			   __entry->monitorid = offer->monitorid;
			   __entry->is_ddc_int = offer->is_dedicated_interrupt;
			   __entry->connection_id = offer->connection_id;
			   export_guid(__entry->if_type, &offer->offer.if_type);
			   export_guid(__entry->if_instance, &offer->offer.if_instance);
			   __entry->chn_flags = offer->offer.chn_flags;
			   __entry->mmio_mb = offer->offer.mmio_megabytes;
			   __entry->sub_idx = offer->offer.sub_channel_index;
		    ),
	    TP_printk("child_relid 0x%x, monitorid 0x%x, is_dedicated %d, "
		      "connection_id 0x%x, if_type %pUl, if_instance %pUl, "
		      "chn_flags 0x%x, mmio_megabytes %d, sub_channel_index %d",
		      __entry->child_relid, __entry->monitorid,
		      __entry->is_ddc_int, __entry->connection_id,
		      __entry->if_type, __entry->if_instance,
		      __entry->chn_flags, __entry->mmio_mb,
		      __entry->sub_idx
		    )
	);

TRACE_EVENT(vmbus_onoffer_rescind,
	    TP_PROTO(const struct vmbus_channel_rescind_offer *offer),
	    TP_ARGS(offer),
	    TP_STRUCT__entry(__field(u32, child_relid)),
	    TP_fast_assign(__entry->child_relid = offer->child_relid),
	    TP_printk("child_relid 0x%x", __entry->child_relid)
	);

TRACE_EVENT(vmbus_onopen_result,
	    TP_PROTO(const struct vmbus_channel_open_result *result),
	    TP_ARGS(result),
	    TP_STRUCT__entry(
		    __field(u32, child_relid)
		    __field(u32, openid)
		    __field(u32, status)
		    ),
	    TP_fast_assign(__entry->child_relid = result->child_relid;
			   __entry->openid = result->openid;
			   __entry->status = result->status;
		    ),
	    TP_printk("child_relid 0x%x, openid %d, status %d",
		      __entry->child_relid,  __entry->openid,  __entry->status
		    )
	);

TRACE_EVENT(vmbus_ongpadl_created,
	    TP_PROTO(const struct vmbus_channel_gpadl_created *gpadlcreated),
	    TP_ARGS(gpadlcreated),
	    TP_STRUCT__entry(

Annotation

Implementation Notes