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-rw-r--r--drivers/target/target_core_transport.c16
-rw-r--r--include/trace/events/target.h214
2 files changed, 229 insertions, 1 deletions
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index ae40addd4ce0..7172d005d063 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -52,6 +52,9 @@
52#include "target_core_pr.h" 52#include "target_core_pr.h"
53#include "target_core_ua.h" 53#include "target_core_ua.h"
54 54
55#define CREATE_TRACE_POINTS
56#include <trace/events/target.h>
57
55static struct workqueue_struct *target_completion_wq; 58static struct workqueue_struct *target_completion_wq;
56static struct kmem_cache *se_sess_cache; 59static struct kmem_cache *se_sess_cache;
57struct kmem_cache *se_ua_cache; 60struct kmem_cache *se_ua_cache;
@@ -1123,6 +1126,8 @@ target_setup_cmd_from_cdb(struct se_cmd *cmd, unsigned char *cdb)
1123 */ 1126 */
1124 memcpy(cmd->t_task_cdb, cdb, scsi_command_size(cdb)); 1127 memcpy(cmd->t_task_cdb, cdb, scsi_command_size(cdb));
1125 1128
1129 trace_target_sequencer_start(cmd);
1130
1126 /* 1131 /*
1127 * Check for an existing UNIT ATTENTION condition 1132 * Check for an existing UNIT ATTENTION condition
1128 */ 1133 */
@@ -1546,7 +1551,8 @@ void transport_generic_request_failure(struct se_cmd *cmd,
1546 cmd->orig_fe_lun, 0x2C, 1551 cmd->orig_fe_lun, 0x2C,
1547 ASCQ_2CH_PREVIOUS_RESERVATION_CONFLICT_STATUS); 1552 ASCQ_2CH_PREVIOUS_RESERVATION_CONFLICT_STATUS);
1548 1553
1549 ret = cmd->se_tfo->queue_status(cmd); 1554 trace_target_cmd_complete(cmd);
1555 ret = cmd->se_tfo-> queue_status(cmd);
1550 if (ret == -EAGAIN || ret == -ENOMEM) 1556 if (ret == -EAGAIN || ret == -ENOMEM)
1551 goto queue_full; 1557 goto queue_full;
1552 goto check_stop; 1558 goto check_stop;
@@ -1766,6 +1772,7 @@ static void transport_complete_qf(struct se_cmd *cmd)
1766 transport_complete_task_attr(cmd); 1772 transport_complete_task_attr(cmd);
1767 1773
1768 if (cmd->se_cmd_flags & SCF_TRANSPORT_TASK_SENSE) { 1774 if (cmd->se_cmd_flags & SCF_TRANSPORT_TASK_SENSE) {
1775 trace_target_cmd_complete(cmd);
1769 ret = cmd->se_tfo->queue_status(cmd); 1776 ret = cmd->se_tfo->queue_status(cmd);
1770 if (ret) 1777 if (ret)
1771 goto out; 1778 goto out;
@@ -1773,6 +1780,7 @@ static void transport_complete_qf(struct se_cmd *cmd)
1773 1780
1774 switch (cmd->data_direction) { 1781 switch (cmd->data_direction) {
1775 case DMA_FROM_DEVICE: 1782 case DMA_FROM_DEVICE:
1783 trace_target_cmd_complete(cmd);
1776 ret = cmd->se_tfo->queue_data_in(cmd); 1784 ret = cmd->se_tfo->queue_data_in(cmd);
1777 break; 1785 break;
1778 case DMA_TO_DEVICE: 1786 case DMA_TO_DEVICE:
@@ -1783,6 +1791,7 @@ static void transport_complete_qf(struct se_cmd *cmd)
1783 } 1791 }
1784 /* Fall through for DMA_TO_DEVICE */ 1792 /* Fall through for DMA_TO_DEVICE */
1785 case DMA_NONE: 1793 case DMA_NONE:
1794 trace_target_cmd_complete(cmd);
1786 ret = cmd->se_tfo->queue_status(cmd); 1795 ret = cmd->se_tfo->queue_status(cmd);
1787 break; 1796 break;
1788 default: 1797 default:
@@ -1861,6 +1870,7 @@ static void target_complete_ok_work(struct work_struct *work)
1861 } 1870 }
1862 spin_unlock(&cmd->se_lun->lun_sep_lock); 1871 spin_unlock(&cmd->se_lun->lun_sep_lock);
1863 1872
1873 trace_target_cmd_complete(cmd);
1864 ret = cmd->se_tfo->queue_data_in(cmd); 1874 ret = cmd->se_tfo->queue_data_in(cmd);
1865 if (ret == -EAGAIN || ret == -ENOMEM) 1875 if (ret == -EAGAIN || ret == -ENOMEM)
1866 goto queue_full; 1876 goto queue_full;
@@ -1889,6 +1899,7 @@ static void target_complete_ok_work(struct work_struct *work)
1889 } 1899 }
1890 /* Fall through for DMA_TO_DEVICE */ 1900 /* Fall through for DMA_TO_DEVICE */
1891 case DMA_NONE: 1901 case DMA_NONE:
1902 trace_target_cmd_complete(cmd);
1892 ret = cmd->se_tfo->queue_status(cmd); 1903 ret = cmd->se_tfo->queue_status(cmd);
1893 if (ret == -EAGAIN || ret == -ENOMEM) 1904 if (ret == -EAGAIN || ret == -ENOMEM)
1894 goto queue_full; 1905 goto queue_full;
@@ -2745,6 +2756,7 @@ transport_send_check_condition_and_sense(struct se_cmd *cmd,
2745 cmd->scsi_sense_length = TRANSPORT_SENSE_BUFFER; 2756 cmd->scsi_sense_length = TRANSPORT_SENSE_BUFFER;
2746 2757
2747after_reason: 2758after_reason:
2759 trace_target_cmd_complete(cmd);
2748 return cmd->se_tfo->queue_status(cmd); 2760 return cmd->se_tfo->queue_status(cmd);
2749} 2761}
2750EXPORT_SYMBOL(transport_send_check_condition_and_sense); 2762EXPORT_SYMBOL(transport_send_check_condition_and_sense);
@@ -2761,6 +2773,7 @@ int transport_check_aborted_status(struct se_cmd *cmd, int send_status)
2761 cmd->t_task_cdb[0], cmd->se_tfo->get_task_tag(cmd)); 2773 cmd->t_task_cdb[0], cmd->se_tfo->get_task_tag(cmd));
2762 2774
2763 cmd->se_cmd_flags |= SCF_SENT_DELAYED_TAS; 2775 cmd->se_cmd_flags |= SCF_SENT_DELAYED_TAS;
2776 trace_target_cmd_complete(cmd);
2764 cmd->se_tfo->queue_status(cmd); 2777 cmd->se_tfo->queue_status(cmd);
2765 2778
2766 return 1; 2779 return 1;
@@ -2798,6 +2811,7 @@ void transport_send_task_abort(struct se_cmd *cmd)
2798 " ITT: 0x%08x\n", cmd->t_task_cdb[0], 2811 " ITT: 0x%08x\n", cmd->t_task_cdb[0],
2799 cmd->se_tfo->get_task_tag(cmd)); 2812 cmd->se_tfo->get_task_tag(cmd));
2800 2813
2814 trace_target_cmd_complete(cmd);
2801 cmd->se_tfo->queue_status(cmd); 2815 cmd->se_tfo->queue_status(cmd);
2802} 2816}
2803 2817
diff --git a/include/trace/events/target.h b/include/trace/events/target.h
new file mode 100644
index 000000000000..aef8fc354025
--- /dev/null
+++ b/include/trace/events/target.h
@@ -0,0 +1,214 @@
1#undef TRACE_SYSTEM
2#define TRACE_SYSTEM target
3
4#if !defined(_TRACE_TARGET_H) || defined(TRACE_HEADER_MULTI_READ)
5#define _TRACE_TARGET_H
6
7#include <linux/tracepoint.h>
8#include <linux/trace_seq.h>
9#include <scsi/scsi.h>
10#include <scsi/scsi_tcq.h>
11#include <target/target_core_base.h>
12
13/* cribbed verbatim from <trace/event/scsi.h> */
14#define scsi_opcode_name(opcode) { opcode, #opcode }
15#define show_opcode_name(val) \
16 __print_symbolic(val, \
17 scsi_opcode_name(TEST_UNIT_READY), \
18 scsi_opcode_name(REZERO_UNIT), \
19 scsi_opcode_name(REQUEST_SENSE), \
20 scsi_opcode_name(FORMAT_UNIT), \
21 scsi_opcode_name(READ_BLOCK_LIMITS), \
22 scsi_opcode_name(REASSIGN_BLOCKS), \
23 scsi_opcode_name(INITIALIZE_ELEMENT_STATUS), \
24 scsi_opcode_name(READ_6), \
25 scsi_opcode_name(WRITE_6), \
26 scsi_opcode_name(SEEK_6), \
27 scsi_opcode_name(READ_REVERSE), \
28 scsi_opcode_name(WRITE_FILEMARKS), \
29 scsi_opcode_name(SPACE), \
30 scsi_opcode_name(INQUIRY), \
31 scsi_opcode_name(RECOVER_BUFFERED_DATA), \
32 scsi_opcode_name(MODE_SELECT), \
33 scsi_opcode_name(RESERVE), \
34 scsi_opcode_name(RELEASE), \
35 scsi_opcode_name(COPY), \
36 scsi_opcode_name(ERASE), \
37 scsi_opcode_name(MODE_SENSE), \
38 scsi_opcode_name(START_STOP), \
39 scsi_opcode_name(RECEIVE_DIAGNOSTIC), \
40 scsi_opcode_name(SEND_DIAGNOSTIC), \
41 scsi_opcode_name(ALLOW_MEDIUM_REMOVAL), \
42 scsi_opcode_name(SET_WINDOW), \
43 scsi_opcode_name(READ_CAPACITY), \
44 scsi_opcode_name(READ_10), \
45 scsi_opcode_name(WRITE_10), \
46 scsi_opcode_name(SEEK_10), \
47 scsi_opcode_name(POSITION_TO_ELEMENT), \
48 scsi_opcode_name(WRITE_VERIFY), \
49 scsi_opcode_name(VERIFY), \
50 scsi_opcode_name(SEARCH_HIGH), \
51 scsi_opcode_name(SEARCH_EQUAL), \
52 scsi_opcode_name(SEARCH_LOW), \
53 scsi_opcode_name(SET_LIMITS), \
54 scsi_opcode_name(PRE_FETCH), \
55 scsi_opcode_name(READ_POSITION), \
56 scsi_opcode_name(SYNCHRONIZE_CACHE), \
57 scsi_opcode_name(LOCK_UNLOCK_CACHE), \
58 scsi_opcode_name(READ_DEFECT_DATA), \
59 scsi_opcode_name(MEDIUM_SCAN), \
60 scsi_opcode_name(COMPARE), \
61 scsi_opcode_name(COPY_VERIFY), \
62 scsi_opcode_name(WRITE_BUFFER), \
63 scsi_opcode_name(READ_BUFFER), \
64 scsi_opcode_name(UPDATE_BLOCK), \
65 scsi_opcode_name(READ_LONG), \
66 scsi_opcode_name(WRITE_LONG), \
67 scsi_opcode_name(CHANGE_DEFINITION), \
68 scsi_opcode_name(WRITE_SAME), \
69 scsi_opcode_name(UNMAP), \
70 scsi_opcode_name(READ_TOC), \
71 scsi_opcode_name(LOG_SELECT), \
72 scsi_opcode_name(LOG_SENSE), \
73 scsi_opcode_name(XDWRITEREAD_10), \
74 scsi_opcode_name(MODE_SELECT_10), \
75 scsi_opcode_name(RESERVE_10), \
76 scsi_opcode_name(RELEASE_10), \
77 scsi_opcode_name(MODE_SENSE_10), \
78 scsi_opcode_name(PERSISTENT_RESERVE_IN), \
79 scsi_opcode_name(PERSISTENT_RESERVE_OUT), \
80 scsi_opcode_name(VARIABLE_LENGTH_CMD), \
81 scsi_opcode_name(REPORT_LUNS), \
82 scsi_opcode_name(MAINTENANCE_IN), \
83 scsi_opcode_name(MAINTENANCE_OUT), \
84 scsi_opcode_name(MOVE_MEDIUM), \
85 scsi_opcode_name(EXCHANGE_MEDIUM), \
86 scsi_opcode_name(READ_12), \
87 scsi_opcode_name(WRITE_12), \
88 scsi_opcode_name(WRITE_VERIFY_12), \
89 scsi_opcode_name(SEARCH_HIGH_12), \
90 scsi_opcode_name(SEARCH_EQUAL_12), \
91 scsi_opcode_name(SEARCH_LOW_12), \
92 scsi_opcode_name(READ_ELEMENT_STATUS), \
93 scsi_opcode_name(SEND_VOLUME_TAG), \
94 scsi_opcode_name(WRITE_LONG_2), \
95 scsi_opcode_name(READ_16), \
96 scsi_opcode_name(WRITE_16), \
97 scsi_opcode_name(VERIFY_16), \
98 scsi_opcode_name(WRITE_SAME_16), \
99 scsi_opcode_name(SERVICE_ACTION_IN), \
100 scsi_opcode_name(SAI_READ_CAPACITY_16), \
101 scsi_opcode_name(SAI_GET_LBA_STATUS), \
102 scsi_opcode_name(MI_REPORT_TARGET_PGS), \
103 scsi_opcode_name(MO_SET_TARGET_PGS), \
104 scsi_opcode_name(READ_32), \
105 scsi_opcode_name(WRITE_32), \
106 scsi_opcode_name(WRITE_SAME_32), \
107 scsi_opcode_name(ATA_16), \
108 scsi_opcode_name(ATA_12))
109
110#define show_task_attribute_name(val) \
111 __print_symbolic(val, \
112 { MSG_SIMPLE_TAG, "SIMPLE" }, \
113 { MSG_HEAD_TAG, "HEAD" }, \
114 { MSG_ORDERED_TAG, "ORDERED" }, \
115 { MSG_ACA_TAG, "ACA" } )
116
117#define show_scsi_status_name(val) \
118 __print_symbolic(val, \
119 { SAM_STAT_GOOD, "GOOD" }, \
120 { SAM_STAT_CHECK_CONDITION, "CHECK CONDITION" }, \
121 { SAM_STAT_CONDITION_MET, "CONDITION MET" }, \
122 { SAM_STAT_BUSY, "BUSY" }, \
123 { SAM_STAT_INTERMEDIATE, "INTERMEDIATE" }, \
124 { SAM_STAT_INTERMEDIATE_CONDITION_MET, "INTERMEDIATE CONDITION MET" }, \
125 { SAM_STAT_RESERVATION_CONFLICT, "RESERVATION CONFLICT" }, \
126 { SAM_STAT_COMMAND_TERMINATED, "COMMAND TERMINATED" }, \
127 { SAM_STAT_TASK_SET_FULL, "TASK SET FULL" }, \
128 { SAM_STAT_ACA_ACTIVE, "ACA ACTIVE" }, \
129 { SAM_STAT_TASK_ABORTED, "TASK ABORTED" } )
130
131TRACE_EVENT(target_sequencer_start,
132
133 TP_PROTO(struct se_cmd *cmd),
134
135 TP_ARGS(cmd),
136
137 TP_STRUCT__entry(
138 __field( unsigned int, unpacked_lun )
139 __field( unsigned int, opcode )
140 __field( unsigned int, data_length )
141 __field( unsigned int, task_attribute )
142 __array( unsigned char, cdb, TCM_MAX_COMMAND_SIZE )
143 __string( initiator, cmd->se_sess->se_node_acl->initiatorname )
144 ),
145
146 TP_fast_assign(
147 __entry->unpacked_lun = cmd->se_lun->unpacked_lun;
148 __entry->opcode = cmd->t_task_cdb[0];
149 __entry->data_length = cmd->data_length;
150 __entry->task_attribute = cmd->sam_task_attr;
151 memcpy(__entry->cdb, cmd->t_task_cdb, TCM_MAX_COMMAND_SIZE);
152 __assign_str(initiator, cmd->se_sess->se_node_acl->initiatorname);
153 ),
154
155 TP_printk("%s -> LUN %03u %s data_length %6u CDB %s (TA:%s C:%02x)",
156 __get_str(initiator), __entry->unpacked_lun,
157 show_opcode_name(__entry->opcode),
158 __entry->data_length, __print_hex(__entry->cdb, 16),
159 show_task_attribute_name(__entry->task_attribute),
160 scsi_command_size(__entry->cdb) <= 16 ?
161 __entry->cdb[scsi_command_size(__entry->cdb) - 1] :
162 __entry->cdb[1]
163 )
164);
165
166TRACE_EVENT(target_cmd_complete,
167
168 TP_PROTO(struct se_cmd *cmd),
169
170 TP_ARGS(cmd),
171
172 TP_STRUCT__entry(
173 __field( unsigned int, unpacked_lun )
174 __field( unsigned int, opcode )
175 __field( unsigned int, data_length )
176 __field( unsigned int, task_attribute )
177 __field( unsigned char, scsi_status )
178 __field( unsigned char, sense_length )
179 __array( unsigned char, cdb, TCM_MAX_COMMAND_SIZE )
180 __array( unsigned char, sense_data, 18 )
181 __string(initiator, cmd->se_sess->se_node_acl->initiatorname)
182 ),
183
184 TP_fast_assign(
185 __entry->unpacked_lun = cmd->se_lun->unpacked_lun;
186 __entry->opcode = cmd->t_task_cdb[0];
187 __entry->data_length = cmd->data_length;
188 __entry->task_attribute = cmd->sam_task_attr;
189 __entry->scsi_status = cmd->scsi_status;
190 __entry->sense_length = cmd->scsi_status == SAM_STAT_CHECK_CONDITION ?
191 min(18, ((u8 *) cmd->sense_buffer)[SPC_ADD_SENSE_LEN_OFFSET] + 8) : 0;
192 memcpy(__entry->cdb, cmd->t_task_cdb, TCM_MAX_COMMAND_SIZE);
193 memcpy(__entry->sense_data, cmd->sense_buffer, __entry->sense_length);
194 __assign_str(initiator, cmd->se_sess->se_node_acl->initiatorname);
195 ),
196
197 TP_printk("%s <- LUN %03u status %s (sense len %d%s%s) %s data_length %6u CDB %s (TA:%s C:%02x)",
198 __get_str(initiator), __entry->unpacked_lun,
199 show_scsi_status_name(__entry->scsi_status),
200 __entry->sense_length, __entry->sense_length ? " / " : "",
201 __print_hex(__entry->sense_data, __entry->sense_length),
202 show_opcode_name(__entry->opcode),
203 __entry->data_length, __print_hex(__entry->cdb, 16),
204 show_task_attribute_name(__entry->task_attribute),
205 scsi_command_size(__entry->cdb) <= 16 ?
206 __entry->cdb[scsi_command_size(__entry->cdb) - 1] :
207 __entry->cdb[1]
208 )
209);
210
211#endif /* _TRACE_TARGET_H */
212
213/* This part must be outside protection */
214#include <trace/define_trace.h>
generated by cgit v1.2.2 (git 2.25.0) at 2025-02-27 21:43:42 -0500