linux/include/trace/events/target.h

/* SPDX-License-Identifier: GPL-2.0 */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM …

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

#include <linux/tracepoint.h>
#include <linux/trace_seq.h>
#include <scsi/scsi_proto.h>
#include <scsi/scsi_tcq.h>
#include <target/target_core_base.h>

/* cribbed verbatim from <trace/event/scsi.h> */
#define scsi_opcode_name(opcode) …
#define show_opcode_name(val) …

#define show_task_attribute_name(val) …

#define show_scsi_status_name(val) …

TRACE_EVENT(target_sequencer_start,

	TP_PROTO(struct se_cmd *cmd),

	TP_ARGS(cmd),

	TP_STRUCT__entry(
		__field( unsigned int,	unpacked_lun	)
		__field( unsigned long long,	tag	)
		__field( unsigned int,	opcode		)
		__field( unsigned int,	data_length	)
		__field( unsigned int,	task_attribute  )
		__field( unsigned char,	control		)
		__array( unsigned char,	cdb, TCM_MAX_COMMAND_SIZE	)
		__string( initiator,	cmd->se_sess->se_node_acl->initiatorname	)
	),

	TP_fast_assign(
		__entry->unpacked_lun	= cmd->orig_fe_lun;
		__entry->tag		= cmd->tag;
		__entry->opcode		= cmd->t_task_cdb[0];
		__entry->data_length	= cmd->data_length;
		__entry->task_attribute	= cmd->sam_task_attr;
		__entry->control	= scsi_command_control(cmd->t_task_cdb);
		memcpy(__entry->cdb, cmd->t_task_cdb, TCM_MAX_COMMAND_SIZE);
		__assign_str(initiator);
	),

	TP_printk("%s -> LUN %03u tag %#llx %s data_length %6u  CDB %s  (TA:%s C:%02x)",
		  __get_str(initiator), __entry->unpacked_lun,
		  __entry->tag, show_opcode_name(__entry->opcode),
		  __entry->data_length, __print_hex(__entry->cdb, 16),
		  show_task_attribute_name(__entry->task_attribute),
		  __entry->control
	)
);

TRACE_EVENT(target_cmd_complete,

	TP_PROTO(struct se_cmd *cmd),

	TP_ARGS(cmd),

	TP_STRUCT__entry(
		__field( unsigned int,	unpacked_lun	)
		__field( unsigned long long,	tag	)
		__field( unsigned int,	opcode		)
		__field( unsigned int,	data_length	)
		__field( unsigned int,	task_attribute  )
		__field( unsigned char,	control		)
		__field( unsigned char,	scsi_status	)
		__field( unsigned char,	sense_length	)
		__array( unsigned char,	cdb, TCM_MAX_COMMAND_SIZE	)
		__array( unsigned char,	sense_data, 18	)
		__string(initiator,	cmd->se_sess->se_node_acl->initiatorname)
	),

	TP_fast_assign(
		__entry->unpacked_lun	= cmd->orig_fe_lun;
		__entry->tag		= cmd->tag;
		__entry->opcode		= cmd->t_task_cdb[0];
		__entry->data_length	= cmd->data_length;
		__entry->task_attribute	= cmd->sam_task_attr;
		__entry->control	= scsi_command_control(cmd->t_task_cdb);
		__entry->scsi_status	= cmd->scsi_status;
		__entry->sense_length	= cmd->scsi_status == SAM_STAT_CHECK_CONDITION ?
			min(18, ((u8 *) cmd->sense_buffer)[SPC_ADD_SENSE_LEN_OFFSET] + 8) : 0;
		memcpy(__entry->cdb, cmd->t_task_cdb, TCM_MAX_COMMAND_SIZE);
		memcpy(__entry->sense_data, cmd->sense_buffer, __entry->sense_length);
		__assign_str(initiator);
	),

	TP_printk("%s <- LUN %03u tag %#llx status %s (sense len %d%s%s)  %s data_length %6u  CDB %s  (TA:%s C:%02x)",
		  __get_str(initiator), __entry->unpacked_lun,
		  __entry->tag,
		  show_scsi_status_name(__entry->scsi_status),
		  __entry->sense_length, __entry->sense_length ? " / " : "",
		  __print_hex(__entry->sense_data, __entry->sense_length),
		  show_opcode_name(__entry->opcode),
		  __entry->data_length, __print_hex(__entry->cdb, 16),
		  show_task_attribute_name(__entry->task_attribute),
		  __entry->control
	)
);

#endif /*  _TRACE_TARGET_H */

/* This part must be outside protection */
#include <trace/define_trace.h>