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2b27bdcc | 1 | // SPDX-License-Identifier: GPL-2.0-only |
bf816235 KT |
2 | /* |
3 | * Copyright (C) 2010 FUJITSU LIMITED | |
4 | * Copyright (C) 2010 Tomohiro Kusumi <kusumi.tomohiro@jp.fujitsu.com> | |
bf816235 KT |
5 | */ |
6 | #include <linux/kernel.h> | |
7 | #include <linux/trace_seq.h> | |
5141f16a | 8 | #include <asm/unaligned.h> |
bf816235 KT |
9 | #include <trace/events/scsi.h> |
10 | ||
c446c1f9 MP |
11 | #define SERVICE_ACTION16(cdb) (cdb[1] & 0x1f) |
12 | #define SERVICE_ACTION32(cdb) ((cdb[8] << 8) | cdb[9]) | |
bf816235 KT |
13 | |
14 | static const char * | |
15 | scsi_trace_misc(struct trace_seq *, unsigned char *, int); | |
16 | ||
17 | static const char * | |
18 | scsi_trace_rw6(struct trace_seq *p, unsigned char *cdb, int len) | |
19 | { | |
7b039cb4 | 20 | const char *ret = trace_seq_buffer_ptr(p); |
bf816235 KT |
21 | sector_t lba = 0, txlen = 0; |
22 | ||
23 | lba |= ((cdb[1] & 0x1F) << 16); | |
24 | lba |= (cdb[2] << 8); | |
25 | lba |= cdb[3]; | |
26 | txlen = cdb[4]; | |
27 | ||
28 | trace_seq_printf(p, "lba=%llu txlen=%llu", | |
29 | (unsigned long long)lba, (unsigned long long)txlen); | |
30 | trace_seq_putc(p, 0); | |
31 | ||
32 | return ret; | |
33 | } | |
34 | ||
35 | static const char * | |
36 | scsi_trace_rw10(struct trace_seq *p, unsigned char *cdb, int len) | |
37 | { | |
7b039cb4 | 38 | const char *ret = trace_seq_buffer_ptr(p); |
bf816235 KT |
39 | sector_t lba = 0, txlen = 0; |
40 | ||
41 | lba |= (cdb[2] << 24); | |
42 | lba |= (cdb[3] << 16); | |
43 | lba |= (cdb[4] << 8); | |
44 | lba |= cdb[5]; | |
45 | txlen |= (cdb[7] << 8); | |
46 | txlen |= cdb[8]; | |
47 | ||
c446c1f9 MP |
48 | trace_seq_printf(p, "lba=%llu txlen=%llu protect=%u", |
49 | (unsigned long long)lba, (unsigned long long)txlen, | |
50 | cdb[1] >> 5); | |
c498bf1a MP |
51 | |
52 | if (cdb[0] == WRITE_SAME) | |
53 | trace_seq_printf(p, " unmap=%u", cdb[1] >> 3 & 1); | |
54 | ||
bf816235 KT |
55 | trace_seq_putc(p, 0); |
56 | ||
57 | return ret; | |
58 | } | |
59 | ||
60 | static const char * | |
61 | scsi_trace_rw12(struct trace_seq *p, unsigned char *cdb, int len) | |
62 | { | |
7b039cb4 | 63 | const char *ret = trace_seq_buffer_ptr(p); |
bf816235 KT |
64 | sector_t lba = 0, txlen = 0; |
65 | ||
66 | lba |= (cdb[2] << 24); | |
67 | lba |= (cdb[3] << 16); | |
68 | lba |= (cdb[4] << 8); | |
69 | lba |= cdb[5]; | |
70 | txlen |= (cdb[6] << 24); | |
71 | txlen |= (cdb[7] << 16); | |
72 | txlen |= (cdb[8] << 8); | |
73 | txlen |= cdb[9]; | |
74 | ||
c446c1f9 MP |
75 | trace_seq_printf(p, "lba=%llu txlen=%llu protect=%u", |
76 | (unsigned long long)lba, (unsigned long long)txlen, | |
77 | cdb[1] >> 5); | |
bf816235 KT |
78 | trace_seq_putc(p, 0); |
79 | ||
80 | return ret; | |
81 | } | |
82 | ||
83 | static const char * | |
84 | scsi_trace_rw16(struct trace_seq *p, unsigned char *cdb, int len) | |
85 | { | |
7b039cb4 | 86 | const char *ret = trace_seq_buffer_ptr(p); |
bf816235 KT |
87 | sector_t lba = 0, txlen = 0; |
88 | ||
89 | lba |= ((u64)cdb[2] << 56); | |
90 | lba |= ((u64)cdb[3] << 48); | |
91 | lba |= ((u64)cdb[4] << 40); | |
92 | lba |= ((u64)cdb[5] << 32); | |
93 | lba |= (cdb[6] << 24); | |
94 | lba |= (cdb[7] << 16); | |
95 | lba |= (cdb[8] << 8); | |
96 | lba |= cdb[9]; | |
97 | txlen |= (cdb[10] << 24); | |
98 | txlen |= (cdb[11] << 16); | |
99 | txlen |= (cdb[12] << 8); | |
100 | txlen |= cdb[13]; | |
101 | ||
c446c1f9 MP |
102 | trace_seq_printf(p, "lba=%llu txlen=%llu protect=%u", |
103 | (unsigned long long)lba, (unsigned long long)txlen, | |
104 | cdb[1] >> 5); | |
105 | ||
106 | if (cdb[0] == WRITE_SAME_16) | |
107 | trace_seq_printf(p, " unmap=%u", cdb[1] >> 3 & 1); | |
108 | ||
bf816235 KT |
109 | trace_seq_putc(p, 0); |
110 | ||
111 | return ret; | |
112 | } | |
113 | ||
114 | static const char * | |
115 | scsi_trace_rw32(struct trace_seq *p, unsigned char *cdb, int len) | |
116 | { | |
7b039cb4 | 117 | const char *ret = trace_seq_buffer_ptr(p), *cmd; |
bf816235 | 118 | sector_t lba = 0, txlen = 0; |
c446c1f9 MP |
119 | u32 ei_lbrt = 0; |
120 | ||
121 | switch (SERVICE_ACTION32(cdb)) { | |
122 | case READ_32: | |
123 | cmd = "READ"; | |
124 | break; | |
125 | case VERIFY_32: | |
126 | cmd = "VERIFY"; | |
127 | break; | |
128 | case WRITE_32: | |
129 | cmd = "WRITE"; | |
130 | break; | |
131 | case WRITE_SAME_32: | |
132 | cmd = "WRITE_SAME"; | |
133 | break; | |
134 | default: | |
91c40f24 | 135 | trace_seq_puts(p, "UNKNOWN"); |
c446c1f9 MP |
136 | goto out; |
137 | } | |
bf816235 KT |
138 | |
139 | lba |= ((u64)cdb[12] << 56); | |
140 | lba |= ((u64)cdb[13] << 48); | |
141 | lba |= ((u64)cdb[14] << 40); | |
142 | lba |= ((u64)cdb[15] << 32); | |
143 | lba |= (cdb[16] << 24); | |
144 | lba |= (cdb[17] << 16); | |
145 | lba |= (cdb[18] << 8); | |
146 | lba |= cdb[19]; | |
c446c1f9 MP |
147 | ei_lbrt |= (cdb[20] << 24); |
148 | ei_lbrt |= (cdb[21] << 16); | |
149 | ei_lbrt |= (cdb[22] << 8); | |
150 | ei_lbrt |= cdb[23]; | |
bf816235 KT |
151 | txlen |= (cdb[28] << 24); |
152 | txlen |= (cdb[29] << 16); | |
153 | txlen |= (cdb[30] << 8); | |
154 | txlen |= cdb[31]; | |
155 | ||
c446c1f9 MP |
156 | trace_seq_printf(p, "%s_32 lba=%llu txlen=%llu protect=%u ei_lbrt=%u", |
157 | cmd, (unsigned long long)lba, | |
158 | (unsigned long long)txlen, cdb[10] >> 5, ei_lbrt); | |
159 | ||
160 | if (SERVICE_ACTION32(cdb) == WRITE_SAME_32) | |
161 | trace_seq_printf(p, " unmap=%u", cdb[10] >> 3 & 1); | |
162 | ||
163 | out: | |
164 | trace_seq_putc(p, 0); | |
165 | ||
166 | return ret; | |
167 | } | |
168 | ||
169 | static const char * | |
170 | scsi_trace_unmap(struct trace_seq *p, unsigned char *cdb, int len) | |
171 | { | |
7b039cb4 | 172 | const char *ret = trace_seq_buffer_ptr(p); |
c446c1f9 MP |
173 | unsigned int regions = cdb[7] << 8 | cdb[8]; |
174 | ||
175 | trace_seq_printf(p, "regions=%u", (regions - 8) / 16); | |
176 | trace_seq_putc(p, 0); | |
177 | ||
178 | return ret; | |
179 | } | |
180 | ||
181 | static const char * | |
182 | scsi_trace_service_action_in(struct trace_seq *p, unsigned char *cdb, int len) | |
183 | { | |
7b039cb4 | 184 | const char *ret = trace_seq_buffer_ptr(p), *cmd; |
c446c1f9 MP |
185 | sector_t lba = 0; |
186 | u32 alloc_len = 0; | |
187 | ||
188 | switch (SERVICE_ACTION16(cdb)) { | |
189 | case SAI_READ_CAPACITY_16: | |
190 | cmd = "READ_CAPACITY_16"; | |
191 | break; | |
192 | case SAI_GET_LBA_STATUS: | |
193 | cmd = "GET_LBA_STATUS"; | |
194 | break; | |
195 | default: | |
91c40f24 | 196 | trace_seq_puts(p, "UNKNOWN"); |
c446c1f9 MP |
197 | goto out; |
198 | } | |
199 | ||
200 | lba |= ((u64)cdb[2] << 56); | |
201 | lba |= ((u64)cdb[3] << 48); | |
202 | lba |= ((u64)cdb[4] << 40); | |
203 | lba |= ((u64)cdb[5] << 32); | |
204 | lba |= (cdb[6] << 24); | |
205 | lba |= (cdb[7] << 16); | |
206 | lba |= (cdb[8] << 8); | |
207 | lba |= cdb[9]; | |
208 | alloc_len |= (cdb[10] << 24); | |
209 | alloc_len |= (cdb[11] << 16); | |
210 | alloc_len |= (cdb[12] << 8); | |
211 | alloc_len |= cdb[13]; | |
212 | ||
213 | trace_seq_printf(p, "%s lba=%llu alloc_len=%u", cmd, | |
214 | (unsigned long long)lba, alloc_len); | |
bf816235 | 215 | |
c446c1f9 | 216 | out: |
bf816235 KT |
217 | trace_seq_putc(p, 0); |
218 | ||
219 | return ret; | |
220 | } | |
221 | ||
5141f16a HR |
222 | static const char * |
223 | scsi_trace_maintenance_in(struct trace_seq *p, unsigned char *cdb, int len) | |
224 | { | |
225 | const char *ret = trace_seq_buffer_ptr(p), *cmd; | |
226 | u32 alloc_len; | |
227 | ||
228 | switch (SERVICE_ACTION16(cdb)) { | |
229 | case MI_REPORT_IDENTIFYING_INFORMATION: | |
230 | cmd = "REPORT_IDENTIFYING_INFORMATION"; | |
231 | break; | |
232 | case MI_REPORT_TARGET_PGS: | |
233 | cmd = "REPORT_TARGET_PORT_GROUPS"; | |
234 | break; | |
235 | case MI_REPORT_ALIASES: | |
236 | cmd = "REPORT_ALIASES"; | |
237 | break; | |
238 | case MI_REPORT_SUPPORTED_OPERATION_CODES: | |
239 | cmd = "REPORT_SUPPORTED_OPERATION_CODES"; | |
240 | break; | |
241 | case MI_REPORT_SUPPORTED_TASK_MANAGEMENT_FUNCTIONS: | |
242 | cmd = "REPORT_SUPPORTED_TASK_MANAGEMENT_FUNCTIONS"; | |
243 | break; | |
244 | case MI_REPORT_PRIORITY: | |
245 | cmd = "REPORT_PRIORITY"; | |
246 | break; | |
247 | case MI_REPORT_TIMESTAMP: | |
248 | cmd = "REPORT_TIMESTAMP"; | |
249 | break; | |
250 | case MI_MANAGEMENT_PROTOCOL_IN: | |
251 | cmd = "MANAGEMENT_PROTOCOL_IN"; | |
252 | break; | |
253 | default: | |
254 | trace_seq_puts(p, "UNKNOWN"); | |
255 | goto out; | |
256 | } | |
257 | ||
258 | alloc_len = get_unaligned_be32(&cdb[6]); | |
259 | ||
260 | trace_seq_printf(p, "%s alloc_len=%u", cmd, alloc_len); | |
261 | ||
262 | out: | |
263 | trace_seq_putc(p, 0); | |
264 | ||
265 | return ret; | |
266 | } | |
267 | ||
268 | static const char * | |
269 | scsi_trace_maintenance_out(struct trace_seq *p, unsigned char *cdb, int len) | |
270 | { | |
271 | const char *ret = trace_seq_buffer_ptr(p), *cmd; | |
272 | u32 alloc_len; | |
273 | ||
274 | switch (SERVICE_ACTION16(cdb)) { | |
275 | case MO_SET_IDENTIFYING_INFORMATION: | |
276 | cmd = "SET_IDENTIFYING_INFORMATION"; | |
277 | break; | |
278 | case MO_SET_TARGET_PGS: | |
279 | cmd = "SET_TARGET_PORT_GROUPS"; | |
280 | break; | |
281 | case MO_CHANGE_ALIASES: | |
282 | cmd = "CHANGE_ALIASES"; | |
283 | break; | |
284 | case MO_SET_PRIORITY: | |
285 | cmd = "SET_PRIORITY"; | |
286 | break; | |
287 | case MO_SET_TIMESTAMP: | |
288 | cmd = "SET_TIMESTAMP"; | |
289 | break; | |
290 | case MO_MANAGEMENT_PROTOCOL_OUT: | |
291 | cmd = "MANAGEMENT_PROTOCOL_OUT"; | |
292 | break; | |
293 | default: | |
294 | trace_seq_puts(p, "UNKNOWN"); | |
295 | goto out; | |
296 | } | |
297 | ||
298 | alloc_len = get_unaligned_be32(&cdb[6]); | |
299 | ||
300 | trace_seq_printf(p, "%s alloc_len=%u", cmd, alloc_len); | |
301 | ||
302 | out: | |
303 | trace_seq_putc(p, 0); | |
304 | ||
305 | return ret; | |
306 | } | |
307 | ||
0008f1e7 HR |
308 | static const char * |
309 | scsi_trace_zbc_in(struct trace_seq *p, unsigned char *cdb, int len) | |
310 | { | |
311 | const char *ret = trace_seq_buffer_ptr(p), *cmd; | |
312 | u64 zone_id; | |
313 | u32 alloc_len; | |
314 | u8 options; | |
315 | ||
316 | switch (SERVICE_ACTION16(cdb)) { | |
317 | case ZI_REPORT_ZONES: | |
318 | cmd = "REPORT_ZONES"; | |
319 | break; | |
320 | default: | |
321 | trace_seq_puts(p, "UNKNOWN"); | |
322 | goto out; | |
323 | } | |
324 | ||
325 | zone_id = get_unaligned_be64(&cdb[2]); | |
326 | alloc_len = get_unaligned_be32(&cdb[10]); | |
327 | options = cdb[14] & 0x3f; | |
328 | ||
329 | trace_seq_printf(p, "%s zone=%llu alloc_len=%u options=%u partial=%u", | |
330 | cmd, (unsigned long long)zone_id, alloc_len, | |
331 | options, (cdb[14] >> 7) & 1); | |
332 | ||
333 | out: | |
334 | trace_seq_putc(p, 0); | |
335 | ||
336 | return ret; | |
337 | } | |
338 | ||
339 | static const char * | |
340 | scsi_trace_zbc_out(struct trace_seq *p, unsigned char *cdb, int len) | |
341 | { | |
342 | const char *ret = trace_seq_buffer_ptr(p), *cmd; | |
343 | u64 zone_id; | |
344 | ||
345 | switch (SERVICE_ACTION16(cdb)) { | |
346 | case ZO_CLOSE_ZONE: | |
347 | cmd = "CLOSE_ZONE"; | |
348 | break; | |
349 | case ZO_FINISH_ZONE: | |
350 | cmd = "FINISH_ZONE"; | |
351 | break; | |
352 | case ZO_OPEN_ZONE: | |
353 | cmd = "OPEN_ZONE"; | |
354 | break; | |
355 | case ZO_RESET_WRITE_POINTER: | |
356 | cmd = "RESET_WRITE_POINTER"; | |
357 | break; | |
358 | default: | |
359 | trace_seq_puts(p, "UNKNOWN"); | |
360 | goto out; | |
361 | } | |
362 | ||
363 | zone_id = get_unaligned_be64(&cdb[2]); | |
364 | ||
365 | trace_seq_printf(p, "%s zone=%llu all=%u", cmd, | |
366 | (unsigned long long)zone_id, cdb[14] & 1); | |
367 | ||
368 | out: | |
369 | trace_seq_putc(p, 0); | |
370 | ||
371 | return ret; | |
372 | } | |
373 | ||
bf816235 KT |
374 | static const char * |
375 | scsi_trace_varlen(struct trace_seq *p, unsigned char *cdb, int len) | |
376 | { | |
c446c1f9 | 377 | switch (SERVICE_ACTION32(cdb)) { |
bf816235 | 378 | case READ_32: |
c446c1f9 | 379 | case VERIFY_32: |
bf816235 | 380 | case WRITE_32: |
c446c1f9 | 381 | case WRITE_SAME_32: |
bf816235 KT |
382 | return scsi_trace_rw32(p, cdb, len); |
383 | default: | |
384 | return scsi_trace_misc(p, cdb, len); | |
385 | } | |
386 | } | |
387 | ||
388 | static const char * | |
389 | scsi_trace_misc(struct trace_seq *p, unsigned char *cdb, int len) | |
390 | { | |
7b039cb4 | 391 | const char *ret = trace_seq_buffer_ptr(p); |
bf816235 | 392 | |
f50332ff | 393 | trace_seq_putc(p, '-'); |
bf816235 KT |
394 | trace_seq_putc(p, 0); |
395 | ||
396 | return ret; | |
397 | } | |
398 | ||
399 | const char * | |
400 | scsi_trace_parse_cdb(struct trace_seq *p, unsigned char *cdb, int len) | |
401 | { | |
402 | switch (cdb[0]) { | |
403 | case READ_6: | |
404 | case WRITE_6: | |
405 | return scsi_trace_rw6(p, cdb, len); | |
406 | case READ_10: | |
c446c1f9 | 407 | case VERIFY: |
bf816235 | 408 | case WRITE_10: |
c446c1f9 | 409 | case WRITE_SAME: |
bf816235 KT |
410 | return scsi_trace_rw10(p, cdb, len); |
411 | case READ_12: | |
c446c1f9 | 412 | case VERIFY_12: |
bf816235 KT |
413 | case WRITE_12: |
414 | return scsi_trace_rw12(p, cdb, len); | |
415 | case READ_16: | |
c446c1f9 | 416 | case VERIFY_16: |
bf816235 | 417 | case WRITE_16: |
c446c1f9 | 418 | case WRITE_SAME_16: |
bf816235 | 419 | return scsi_trace_rw16(p, cdb, len); |
c446c1f9 MP |
420 | case UNMAP: |
421 | return scsi_trace_unmap(p, cdb, len); | |
eb846d9f | 422 | case SERVICE_ACTION_IN_16: |
c446c1f9 | 423 | return scsi_trace_service_action_in(p, cdb, len); |
bf816235 KT |
424 | case VARIABLE_LENGTH_CMD: |
425 | return scsi_trace_varlen(p, cdb, len); | |
5141f16a HR |
426 | case MAINTENANCE_IN: |
427 | return scsi_trace_maintenance_in(p, cdb, len); | |
428 | case MAINTENANCE_OUT: | |
429 | return scsi_trace_maintenance_out(p, cdb, len); | |
0008f1e7 HR |
430 | case ZBC_IN: |
431 | return scsi_trace_zbc_in(p, cdb, len); | |
432 | case ZBC_OUT: | |
433 | return scsi_trace_zbc_out(p, cdb, len); | |
bf816235 KT |
434 | default: |
435 | return scsi_trace_misc(p, cdb, len); | |
436 | } | |
437 | } |