1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) 2010 FUJITSU LIMITED
4 * Copyright (C) 2010 Tomohiro Kusumi <kusumi.tomohiro@jp.fujitsu.com>
6 #include <linux/kernel.h>
7 #include <linux/trace_seq.h>
8 #include <asm/unaligned.h>
9 #include <trace/events/scsi.h>
11 #define SERVICE_ACTION16(cdb) (cdb[1] & 0x1f)
12 #define SERVICE_ACTION32(cdb) (get_unaligned_be16(&cdb[8]))
15 scsi_trace_misc(struct trace_seq *, unsigned char *, int);
18 scsi_trace_rw6(struct trace_seq *p, unsigned char *cdb, int len)
20 const char *ret = trace_seq_buffer_ptr(p);
23 lba |= ((cdb[1] & 0x1F) << 16);
27 * From SBC-2: a TRANSFER LENGTH field set to zero specifies that 256
28 * logical blocks shall be read (READ(6)) or written (WRITE(6)).
30 txlen = cdb[4] ? cdb[4] : 256;
32 trace_seq_printf(p, "lba=%u txlen=%u", lba, txlen);
39 scsi_trace_rw10(struct trace_seq *p, unsigned char *cdb, int len)
41 const char *ret = trace_seq_buffer_ptr(p);
44 lba = get_unaligned_be32(&cdb[2]);
45 txlen = get_unaligned_be16(&cdb[7]);
47 trace_seq_printf(p, "lba=%u txlen=%u protect=%u", lba, txlen,
50 if (cdb[0] == WRITE_SAME)
51 trace_seq_printf(p, " unmap=%u", cdb[1] >> 3 & 1);
59 scsi_trace_rw12(struct trace_seq *p, unsigned char *cdb, int len)
61 const char *ret = trace_seq_buffer_ptr(p);
64 lba = get_unaligned_be32(&cdb[2]);
65 txlen = get_unaligned_be32(&cdb[6]);
67 trace_seq_printf(p, "lba=%u txlen=%u protect=%u", lba, txlen,
75 scsi_trace_rw16(struct trace_seq *p, unsigned char *cdb, int len)
77 const char *ret = trace_seq_buffer_ptr(p);
81 lba = get_unaligned_be64(&cdb[2]);
82 txlen = get_unaligned_be32(&cdb[10]);
84 trace_seq_printf(p, "lba=%llu txlen=%u protect=%u", lba, txlen,
87 if (cdb[0] == WRITE_SAME_16)
88 trace_seq_printf(p, " unmap=%u", cdb[1] >> 3 & 1);
96 scsi_trace_rw32(struct trace_seq *p, unsigned char *cdb, int len)
98 const char *ret = trace_seq_buffer_ptr(p), *cmd;
102 switch (SERVICE_ACTION32(cdb)) {
116 trace_seq_puts(p, "UNKNOWN");
120 lba = get_unaligned_be64(&cdb[12]);
121 ei_lbrt = get_unaligned_be32(&cdb[20]);
122 txlen = get_unaligned_be32(&cdb[28]);
124 trace_seq_printf(p, "%s_32 lba=%llu txlen=%u protect=%u ei_lbrt=%u",
125 cmd, lba, txlen, cdb[10] >> 5, ei_lbrt);
127 if (SERVICE_ACTION32(cdb) == WRITE_SAME_32)
128 trace_seq_printf(p, " unmap=%u", cdb[10] >> 3 & 1);
131 trace_seq_putc(p, 0);
137 scsi_trace_unmap(struct trace_seq *p, unsigned char *cdb, int len)
139 const char *ret = trace_seq_buffer_ptr(p);
140 unsigned int regions = get_unaligned_be16(&cdb[7]);
142 trace_seq_printf(p, "regions=%u", (regions - 8) / 16);
143 trace_seq_putc(p, 0);
149 scsi_trace_service_action_in(struct trace_seq *p, unsigned char *cdb, int len)
151 const char *ret = trace_seq_buffer_ptr(p), *cmd;
155 switch (SERVICE_ACTION16(cdb)) {
156 case SAI_READ_CAPACITY_16:
157 cmd = "READ_CAPACITY_16";
159 case SAI_GET_LBA_STATUS:
160 cmd = "GET_LBA_STATUS";
163 trace_seq_puts(p, "UNKNOWN");
167 lba = get_unaligned_be64(&cdb[2]);
168 alloc_len = get_unaligned_be32(&cdb[10]);
170 trace_seq_printf(p, "%s lba=%llu alloc_len=%u", cmd, lba, alloc_len);
173 trace_seq_putc(p, 0);
179 scsi_trace_maintenance_in(struct trace_seq *p, unsigned char *cdb, int len)
181 const char *ret = trace_seq_buffer_ptr(p), *cmd;
184 switch (SERVICE_ACTION16(cdb)) {
185 case MI_REPORT_IDENTIFYING_INFORMATION:
186 cmd = "REPORT_IDENTIFYING_INFORMATION";
188 case MI_REPORT_TARGET_PGS:
189 cmd = "REPORT_TARGET_PORT_GROUPS";
191 case MI_REPORT_ALIASES:
192 cmd = "REPORT_ALIASES";
194 case MI_REPORT_SUPPORTED_OPERATION_CODES:
195 cmd = "REPORT_SUPPORTED_OPERATION_CODES";
197 case MI_REPORT_SUPPORTED_TASK_MANAGEMENT_FUNCTIONS:
198 cmd = "REPORT_SUPPORTED_TASK_MANAGEMENT_FUNCTIONS";
200 case MI_REPORT_PRIORITY:
201 cmd = "REPORT_PRIORITY";
203 case MI_REPORT_TIMESTAMP:
204 cmd = "REPORT_TIMESTAMP";
206 case MI_MANAGEMENT_PROTOCOL_IN:
207 cmd = "MANAGEMENT_PROTOCOL_IN";
210 trace_seq_puts(p, "UNKNOWN");
214 alloc_len = get_unaligned_be32(&cdb[6]);
216 trace_seq_printf(p, "%s alloc_len=%u", cmd, alloc_len);
219 trace_seq_putc(p, 0);
225 scsi_trace_maintenance_out(struct trace_seq *p, unsigned char *cdb, int len)
227 const char *ret = trace_seq_buffer_ptr(p), *cmd;
230 switch (SERVICE_ACTION16(cdb)) {
231 case MO_SET_IDENTIFYING_INFORMATION:
232 cmd = "SET_IDENTIFYING_INFORMATION";
234 case MO_SET_TARGET_PGS:
235 cmd = "SET_TARGET_PORT_GROUPS";
237 case MO_CHANGE_ALIASES:
238 cmd = "CHANGE_ALIASES";
240 case MO_SET_PRIORITY:
241 cmd = "SET_PRIORITY";
243 case MO_SET_TIMESTAMP:
244 cmd = "SET_TIMESTAMP";
246 case MO_MANAGEMENT_PROTOCOL_OUT:
247 cmd = "MANAGEMENT_PROTOCOL_OUT";
250 trace_seq_puts(p, "UNKNOWN");
254 alloc_len = get_unaligned_be32(&cdb[6]);
256 trace_seq_printf(p, "%s alloc_len=%u", cmd, alloc_len);
259 trace_seq_putc(p, 0);
265 scsi_trace_zbc_in(struct trace_seq *p, unsigned char *cdb, int len)
267 const char *ret = trace_seq_buffer_ptr(p), *cmd;
272 switch (SERVICE_ACTION16(cdb)) {
273 case ZI_REPORT_ZONES:
274 cmd = "REPORT_ZONES";
277 trace_seq_puts(p, "UNKNOWN");
281 zone_id = get_unaligned_be64(&cdb[2]);
282 alloc_len = get_unaligned_be32(&cdb[10]);
283 options = cdb[14] & 0x3f;
285 trace_seq_printf(p, "%s zone=%llu alloc_len=%u options=%u partial=%u",
286 cmd, (unsigned long long)zone_id, alloc_len,
287 options, (cdb[14] >> 7) & 1);
290 trace_seq_putc(p, 0);
296 scsi_trace_zbc_out(struct trace_seq *p, unsigned char *cdb, int len)
298 const char *ret = trace_seq_buffer_ptr(p), *cmd;
301 switch (SERVICE_ACTION16(cdb)) {
311 case ZO_RESET_WRITE_POINTER:
312 cmd = "RESET_WRITE_POINTER";
315 trace_seq_puts(p, "UNKNOWN");
319 zone_id = get_unaligned_be64(&cdb[2]);
321 trace_seq_printf(p, "%s zone=%llu all=%u", cmd,
322 (unsigned long long)zone_id, cdb[14] & 1);
325 trace_seq_putc(p, 0);
331 scsi_trace_varlen(struct trace_seq *p, unsigned char *cdb, int len)
333 switch (SERVICE_ACTION32(cdb)) {
338 return scsi_trace_rw32(p, cdb, len);
340 return scsi_trace_misc(p, cdb, len);
345 scsi_trace_misc(struct trace_seq *p, unsigned char *cdb, int len)
347 const char *ret = trace_seq_buffer_ptr(p);
349 trace_seq_putc(p, '-');
350 trace_seq_putc(p, 0);
356 scsi_trace_parse_cdb(struct trace_seq *p, unsigned char *cdb, int len)
361 return scsi_trace_rw6(p, cdb, len);
366 return scsi_trace_rw10(p, cdb, len);
370 return scsi_trace_rw12(p, cdb, len);
375 return scsi_trace_rw16(p, cdb, len);
377 return scsi_trace_unmap(p, cdb, len);
378 case SERVICE_ACTION_IN_16:
379 return scsi_trace_service_action_in(p, cdb, len);
380 case VARIABLE_LENGTH_CMD:
381 return scsi_trace_varlen(p, cdb, len);
383 return scsi_trace_maintenance_in(p, cdb, len);
384 case MAINTENANCE_OUT:
385 return scsi_trace_maintenance_out(p, cdb, len);
387 return scsi_trace_zbc_in(p, cdb, len);
389 return scsi_trace_zbc_out(p, cdb, len);
391 return scsi_trace_misc(p, cdb, len);