mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-23 17:30:02 +00:00
![Roland Dreier](/assets/img/avatar_default.png)
The unpacked_lun field in the SCSI target tracepoints should be initialized with cmd->orig_fe_lun rather than cmd->se_lun->unpacked_lun for two reasons: - most importantly, if we are in the cmd_complete tracepoint returning a check condition due to no LUN found, cmd->se_lun will be NULL and we'll crash trying to dereference it. - also, in any case, cmd->se_lun->unpacked_lun is an internal index into the target's internal set of LUNs; cmd->orig_fe_lun is much more useful and interesting, since it's the value the initiator actually sent. Signed-off-by: Roland Dreier <roland@purestorage.com> Cc: <stable@vger.kernel.org> # 3.11+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
214 lines
7.5 KiB
C
214 lines
7.5 KiB
C
#undef TRACE_SYSTEM
|
|
#define TRACE_SYSTEM target
|
|
|
|
#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.h>
|
|
#include <scsi/scsi_tcq.h>
|
|
#include <target/target_core_base.h>
|
|
|
|
/* cribbed verbatim from <trace/event/scsi.h> */
|
|
#define scsi_opcode_name(opcode) { opcode, #opcode }
|
|
#define show_opcode_name(val) \
|
|
__print_symbolic(val, \
|
|
scsi_opcode_name(TEST_UNIT_READY), \
|
|
scsi_opcode_name(REZERO_UNIT), \
|
|
scsi_opcode_name(REQUEST_SENSE), \
|
|
scsi_opcode_name(FORMAT_UNIT), \
|
|
scsi_opcode_name(READ_BLOCK_LIMITS), \
|
|
scsi_opcode_name(REASSIGN_BLOCKS), \
|
|
scsi_opcode_name(INITIALIZE_ELEMENT_STATUS), \
|
|
scsi_opcode_name(READ_6), \
|
|
scsi_opcode_name(WRITE_6), \
|
|
scsi_opcode_name(SEEK_6), \
|
|
scsi_opcode_name(READ_REVERSE), \
|
|
scsi_opcode_name(WRITE_FILEMARKS), \
|
|
scsi_opcode_name(SPACE), \
|
|
scsi_opcode_name(INQUIRY), \
|
|
scsi_opcode_name(RECOVER_BUFFERED_DATA), \
|
|
scsi_opcode_name(MODE_SELECT), \
|
|
scsi_opcode_name(RESERVE), \
|
|
scsi_opcode_name(RELEASE), \
|
|
scsi_opcode_name(COPY), \
|
|
scsi_opcode_name(ERASE), \
|
|
scsi_opcode_name(MODE_SENSE), \
|
|
scsi_opcode_name(START_STOP), \
|
|
scsi_opcode_name(RECEIVE_DIAGNOSTIC), \
|
|
scsi_opcode_name(SEND_DIAGNOSTIC), \
|
|
scsi_opcode_name(ALLOW_MEDIUM_REMOVAL), \
|
|
scsi_opcode_name(SET_WINDOW), \
|
|
scsi_opcode_name(READ_CAPACITY), \
|
|
scsi_opcode_name(READ_10), \
|
|
scsi_opcode_name(WRITE_10), \
|
|
scsi_opcode_name(SEEK_10), \
|
|
scsi_opcode_name(POSITION_TO_ELEMENT), \
|
|
scsi_opcode_name(WRITE_VERIFY), \
|
|
scsi_opcode_name(VERIFY), \
|
|
scsi_opcode_name(SEARCH_HIGH), \
|
|
scsi_opcode_name(SEARCH_EQUAL), \
|
|
scsi_opcode_name(SEARCH_LOW), \
|
|
scsi_opcode_name(SET_LIMITS), \
|
|
scsi_opcode_name(PRE_FETCH), \
|
|
scsi_opcode_name(READ_POSITION), \
|
|
scsi_opcode_name(SYNCHRONIZE_CACHE), \
|
|
scsi_opcode_name(LOCK_UNLOCK_CACHE), \
|
|
scsi_opcode_name(READ_DEFECT_DATA), \
|
|
scsi_opcode_name(MEDIUM_SCAN), \
|
|
scsi_opcode_name(COMPARE), \
|
|
scsi_opcode_name(COPY_VERIFY), \
|
|
scsi_opcode_name(WRITE_BUFFER), \
|
|
scsi_opcode_name(READ_BUFFER), \
|
|
scsi_opcode_name(UPDATE_BLOCK), \
|
|
scsi_opcode_name(READ_LONG), \
|
|
scsi_opcode_name(WRITE_LONG), \
|
|
scsi_opcode_name(CHANGE_DEFINITION), \
|
|
scsi_opcode_name(WRITE_SAME), \
|
|
scsi_opcode_name(UNMAP), \
|
|
scsi_opcode_name(READ_TOC), \
|
|
scsi_opcode_name(LOG_SELECT), \
|
|
scsi_opcode_name(LOG_SENSE), \
|
|
scsi_opcode_name(XDWRITEREAD_10), \
|
|
scsi_opcode_name(MODE_SELECT_10), \
|
|
scsi_opcode_name(RESERVE_10), \
|
|
scsi_opcode_name(RELEASE_10), \
|
|
scsi_opcode_name(MODE_SENSE_10), \
|
|
scsi_opcode_name(PERSISTENT_RESERVE_IN), \
|
|
scsi_opcode_name(PERSISTENT_RESERVE_OUT), \
|
|
scsi_opcode_name(VARIABLE_LENGTH_CMD), \
|
|
scsi_opcode_name(REPORT_LUNS), \
|
|
scsi_opcode_name(MAINTENANCE_IN), \
|
|
scsi_opcode_name(MAINTENANCE_OUT), \
|
|
scsi_opcode_name(MOVE_MEDIUM), \
|
|
scsi_opcode_name(EXCHANGE_MEDIUM), \
|
|
scsi_opcode_name(READ_12), \
|
|
scsi_opcode_name(WRITE_12), \
|
|
scsi_opcode_name(WRITE_VERIFY_12), \
|
|
scsi_opcode_name(SEARCH_HIGH_12), \
|
|
scsi_opcode_name(SEARCH_EQUAL_12), \
|
|
scsi_opcode_name(SEARCH_LOW_12), \
|
|
scsi_opcode_name(READ_ELEMENT_STATUS), \
|
|
scsi_opcode_name(SEND_VOLUME_TAG), \
|
|
scsi_opcode_name(WRITE_LONG_2), \
|
|
scsi_opcode_name(READ_16), \
|
|
scsi_opcode_name(WRITE_16), \
|
|
scsi_opcode_name(VERIFY_16), \
|
|
scsi_opcode_name(WRITE_SAME_16), \
|
|
scsi_opcode_name(SERVICE_ACTION_IN), \
|
|
scsi_opcode_name(SAI_READ_CAPACITY_16), \
|
|
scsi_opcode_name(SAI_GET_LBA_STATUS), \
|
|
scsi_opcode_name(MI_REPORT_TARGET_PGS), \
|
|
scsi_opcode_name(MO_SET_TARGET_PGS), \
|
|
scsi_opcode_name(READ_32), \
|
|
scsi_opcode_name(WRITE_32), \
|
|
scsi_opcode_name(WRITE_SAME_32), \
|
|
scsi_opcode_name(ATA_16), \
|
|
scsi_opcode_name(ATA_12))
|
|
|
|
#define show_task_attribute_name(val) \
|
|
__print_symbolic(val, \
|
|
{ MSG_SIMPLE_TAG, "SIMPLE" }, \
|
|
{ MSG_HEAD_TAG, "HEAD" }, \
|
|
{ MSG_ORDERED_TAG, "ORDERED" }, \
|
|
{ MSG_ACA_TAG, "ACA" } )
|
|
|
|
#define show_scsi_status_name(val) \
|
|
__print_symbolic(val, \
|
|
{ SAM_STAT_GOOD, "GOOD" }, \
|
|
{ SAM_STAT_CHECK_CONDITION, "CHECK CONDITION" }, \
|
|
{ SAM_STAT_CONDITION_MET, "CONDITION MET" }, \
|
|
{ SAM_STAT_BUSY, "BUSY" }, \
|
|
{ SAM_STAT_INTERMEDIATE, "INTERMEDIATE" }, \
|
|
{ SAM_STAT_INTERMEDIATE_CONDITION_MET, "INTERMEDIATE CONDITION MET" }, \
|
|
{ SAM_STAT_RESERVATION_CONFLICT, "RESERVATION CONFLICT" }, \
|
|
{ SAM_STAT_COMMAND_TERMINATED, "COMMAND TERMINATED" }, \
|
|
{ SAM_STAT_TASK_SET_FULL, "TASK SET FULL" }, \
|
|
{ SAM_STAT_ACA_ACTIVE, "ACA ACTIVE" }, \
|
|
{ SAM_STAT_TASK_ABORTED, "TASK ABORTED" } )
|
|
|
|
TRACE_EVENT(target_sequencer_start,
|
|
|
|
TP_PROTO(struct se_cmd *cmd),
|
|
|
|
TP_ARGS(cmd),
|
|
|
|
TP_STRUCT__entry(
|
|
__field( unsigned int, unpacked_lun )
|
|
__field( unsigned int, opcode )
|
|
__field( unsigned int, data_length )
|
|
__field( unsigned int, task_attribute )
|
|
__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->opcode = cmd->t_task_cdb[0];
|
|
__entry->data_length = cmd->data_length;
|
|
__entry->task_attribute = cmd->sam_task_attr;
|
|
memcpy(__entry->cdb, cmd->t_task_cdb, TCM_MAX_COMMAND_SIZE);
|
|
__assign_str(initiator, cmd->se_sess->se_node_acl->initiatorname);
|
|
),
|
|
|
|
TP_printk("%s -> LUN %03u %s data_length %6u CDB %s (TA:%s C:%02x)",
|
|
__get_str(initiator), __entry->unpacked_lun,
|
|
show_opcode_name(__entry->opcode),
|
|
__entry->data_length, __print_hex(__entry->cdb, 16),
|
|
show_task_attribute_name(__entry->task_attribute),
|
|
scsi_command_size(__entry->cdb) <= 16 ?
|
|
__entry->cdb[scsi_command_size(__entry->cdb) - 1] :
|
|
__entry->cdb[1]
|
|
)
|
|
);
|
|
|
|
TRACE_EVENT(target_cmd_complete,
|
|
|
|
TP_PROTO(struct se_cmd *cmd),
|
|
|
|
TP_ARGS(cmd),
|
|
|
|
TP_STRUCT__entry(
|
|
__field( unsigned int, unpacked_lun )
|
|
__field( unsigned int, opcode )
|
|
__field( unsigned int, data_length )
|
|
__field( unsigned int, task_attribute )
|
|
__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->opcode = cmd->t_task_cdb[0];
|
|
__entry->data_length = cmd->data_length;
|
|
__entry->task_attribute = cmd->sam_task_attr;
|
|
__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, cmd->se_sess->se_node_acl->initiatorname);
|
|
),
|
|
|
|
TP_printk("%s <- LUN %03u status %s (sense len %d%s%s) %s data_length %6u CDB %s (TA:%s C:%02x)",
|
|
__get_str(initiator), __entry->unpacked_lun,
|
|
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),
|
|
scsi_command_size(__entry->cdb) <= 16 ?
|
|
__entry->cdb[scsi_command_size(__entry->cdb) - 1] :
|
|
__entry->cdb[1]
|
|
)
|
|
);
|
|
|
|
#endif /* _TRACE_TARGET_H */
|
|
|
|
/* This part must be outside protection */
|
|
#include <trace/define_trace.h>
|