Loading...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 | // SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2010 FUJITSU LIMITED * Copyright (C) 2010 Tomohiro Kusumi <kusumi.tomohiro@jp.fujitsu.com> */ #include <linux/kernel.h> #include <linux/trace_seq.h> #include <asm/unaligned.h> #include <trace/events/scsi.h> #define SERVICE_ACTION16(cdb) (cdb[1] & 0x1f) #define SERVICE_ACTION32(cdb) (get_unaligned_be16(&cdb[8])) static const char * scsi_trace_misc(struct trace_seq *, unsigned char *, int); static const char * scsi_trace_rw6(struct trace_seq *p, unsigned char *cdb, int len) { const char *ret = trace_seq_buffer_ptr(p); u32 lba, txlen; lba = get_unaligned_be24(&cdb[1]) & 0x1fffff; /* * From SBC-2: a TRANSFER LENGTH field set to zero specifies that 256 * logical blocks shall be read (READ(6)) or written (WRITE(6)). */ txlen = cdb[4] ? cdb[4] : 256; trace_seq_printf(p, "lba=%u txlen=%u", lba, txlen); trace_seq_putc(p, 0); return ret; } static const char * scsi_trace_rw10(struct trace_seq *p, unsigned char *cdb, int len) { const char *ret = trace_seq_buffer_ptr(p); u32 lba, txlen; lba = get_unaligned_be32(&cdb[2]); txlen = get_unaligned_be16(&cdb[7]); trace_seq_printf(p, "lba=%u txlen=%u protect=%u", lba, txlen, cdb[1] >> 5); if (cdb[0] == WRITE_SAME) trace_seq_printf(p, " unmap=%u", cdb[1] >> 3 & 1); trace_seq_putc(p, 0); return ret; } static const char * scsi_trace_rw12(struct trace_seq *p, unsigned char *cdb, int len) { const char *ret = trace_seq_buffer_ptr(p); u32 lba, txlen; lba = get_unaligned_be32(&cdb[2]); txlen = get_unaligned_be32(&cdb[6]); trace_seq_printf(p, "lba=%u txlen=%u protect=%u", lba, txlen, cdb[1] >> 5); trace_seq_putc(p, 0); return ret; } static const char * scsi_trace_rw16(struct trace_seq *p, unsigned char *cdb, int len) { const char *ret = trace_seq_buffer_ptr(p); u64 lba; u32 txlen; lba = get_unaligned_be64(&cdb[2]); txlen = get_unaligned_be32(&cdb[10]); trace_seq_printf(p, "lba=%llu txlen=%u protect=%u", lba, txlen, cdb[1] >> 5); if (cdb[0] == WRITE_SAME_16) trace_seq_printf(p, " unmap=%u", cdb[1] >> 3 & 1); trace_seq_putc(p, 0); return ret; } static const char * scsi_trace_rw32(struct trace_seq *p, unsigned char *cdb, int len) { const char *ret = trace_seq_buffer_ptr(p), *cmd; u64 lba; u32 ei_lbrt, txlen; switch (SERVICE_ACTION32(cdb)) { case READ_32: cmd = "READ"; break; case VERIFY_32: cmd = "VERIFY"; break; case WRITE_32: cmd = "WRITE"; break; case WRITE_SAME_32: cmd = "WRITE_SAME"; break; default: trace_seq_puts(p, "UNKNOWN"); goto out; } lba = get_unaligned_be64(&cdb[12]); ei_lbrt = get_unaligned_be32(&cdb[20]); txlen = get_unaligned_be32(&cdb[28]); trace_seq_printf(p, "%s_32 lba=%llu txlen=%u protect=%u ei_lbrt=%u", cmd, lba, txlen, cdb[10] >> 5, ei_lbrt); if (SERVICE_ACTION32(cdb) == WRITE_SAME_32) trace_seq_printf(p, " unmap=%u", cdb[10] >> 3 & 1); out: trace_seq_putc(p, 0); return ret; } static const char * scsi_trace_unmap(struct trace_seq *p, unsigned char *cdb, int len) { const char *ret = trace_seq_buffer_ptr(p); unsigned int regions = get_unaligned_be16(&cdb[7]); trace_seq_printf(p, "regions=%u", (regions - 8) / 16); trace_seq_putc(p, 0); return ret; } static const char * scsi_trace_service_action_in(struct trace_seq *p, unsigned char *cdb, int len) { const char *ret = trace_seq_buffer_ptr(p), *cmd; u64 lba; u32 alloc_len; switch (SERVICE_ACTION16(cdb)) { case SAI_READ_CAPACITY_16: cmd = "READ_CAPACITY_16"; break; case SAI_GET_LBA_STATUS: cmd = "GET_LBA_STATUS"; break; default: trace_seq_puts(p, "UNKNOWN"); goto out; } lba = get_unaligned_be64(&cdb[2]); alloc_len = get_unaligned_be32(&cdb[10]); trace_seq_printf(p, "%s lba=%llu alloc_len=%u", cmd, lba, alloc_len); out: trace_seq_putc(p, 0); return ret; } static const char * scsi_trace_maintenance_in(struct trace_seq *p, unsigned char *cdb, int len) { const char *ret = trace_seq_buffer_ptr(p), *cmd; u32 alloc_len; switch (SERVICE_ACTION16(cdb)) { case MI_REPORT_IDENTIFYING_INFORMATION: cmd = "REPORT_IDENTIFYING_INFORMATION"; break; case MI_REPORT_TARGET_PGS: cmd = "REPORT_TARGET_PORT_GROUPS"; break; case MI_REPORT_ALIASES: cmd = "REPORT_ALIASES"; break; case MI_REPORT_SUPPORTED_OPERATION_CODES: cmd = "REPORT_SUPPORTED_OPERATION_CODES"; break; case MI_REPORT_SUPPORTED_TASK_MANAGEMENT_FUNCTIONS: cmd = "REPORT_SUPPORTED_TASK_MANAGEMENT_FUNCTIONS"; break; case MI_REPORT_PRIORITY: cmd = "REPORT_PRIORITY"; break; case MI_REPORT_TIMESTAMP: cmd = "REPORT_TIMESTAMP"; break; case MI_MANAGEMENT_PROTOCOL_IN: cmd = "MANAGEMENT_PROTOCOL_IN"; break; default: trace_seq_puts(p, "UNKNOWN"); goto out; } alloc_len = get_unaligned_be32(&cdb[6]); trace_seq_printf(p, "%s alloc_len=%u", cmd, alloc_len); out: trace_seq_putc(p, 0); return ret; } static const char * scsi_trace_maintenance_out(struct trace_seq *p, unsigned char *cdb, int len) { const char *ret = trace_seq_buffer_ptr(p), *cmd; u32 alloc_len; switch (SERVICE_ACTION16(cdb)) { case MO_SET_IDENTIFYING_INFORMATION: cmd = "SET_IDENTIFYING_INFORMATION"; break; case MO_SET_TARGET_PGS: cmd = "SET_TARGET_PORT_GROUPS"; break; case MO_CHANGE_ALIASES: cmd = "CHANGE_ALIASES"; break; case MO_SET_PRIORITY: cmd = "SET_PRIORITY"; break; case MO_SET_TIMESTAMP: cmd = "SET_TIMESTAMP"; break; case MO_MANAGEMENT_PROTOCOL_OUT: cmd = "MANAGEMENT_PROTOCOL_OUT"; break; default: trace_seq_puts(p, "UNKNOWN"); goto out; } alloc_len = get_unaligned_be32(&cdb[6]); trace_seq_printf(p, "%s alloc_len=%u", cmd, alloc_len); out: trace_seq_putc(p, 0); return ret; } static const char * scsi_trace_zbc_in(struct trace_seq *p, unsigned char *cdb, int len) { const char *ret = trace_seq_buffer_ptr(p), *cmd; u64 zone_id; u32 alloc_len; u8 options; switch (SERVICE_ACTION16(cdb)) { case ZI_REPORT_ZONES: cmd = "REPORT_ZONES"; break; default: trace_seq_puts(p, "UNKNOWN"); goto out; } zone_id = get_unaligned_be64(&cdb[2]); alloc_len = get_unaligned_be32(&cdb[10]); options = cdb[14] & 0x3f; trace_seq_printf(p, "%s zone=%llu alloc_len=%u options=%u partial=%u", cmd, (unsigned long long)zone_id, alloc_len, options, (cdb[14] >> 7) & 1); out: trace_seq_putc(p, 0); return ret; } static const char * scsi_trace_zbc_out(struct trace_seq *p, unsigned char *cdb, int len) { const char *ret = trace_seq_buffer_ptr(p), *cmd; u64 zone_id; switch (SERVICE_ACTION16(cdb)) { case ZO_CLOSE_ZONE: cmd = "CLOSE_ZONE"; break; case ZO_FINISH_ZONE: cmd = "FINISH_ZONE"; break; case ZO_OPEN_ZONE: cmd = "OPEN_ZONE"; break; case ZO_RESET_WRITE_POINTER: cmd = "RESET_WRITE_POINTER"; break; default: trace_seq_puts(p, "UNKNOWN"); goto out; } zone_id = get_unaligned_be64(&cdb[2]); trace_seq_printf(p, "%s zone=%llu all=%u", cmd, (unsigned long long)zone_id, cdb[14] & 1); out: trace_seq_putc(p, 0); return ret; } static const char * scsi_trace_varlen(struct trace_seq *p, unsigned char *cdb, int len) { switch (SERVICE_ACTION32(cdb)) { case READ_32: case VERIFY_32: case WRITE_32: case WRITE_SAME_32: return scsi_trace_rw32(p, cdb, len); default: return scsi_trace_misc(p, cdb, len); } } static const char * scsi_trace_misc(struct trace_seq *p, unsigned char *cdb, int len) { const char *ret = trace_seq_buffer_ptr(p); trace_seq_putc(p, '-'); trace_seq_putc(p, 0); return ret; } const char * scsi_trace_parse_cdb(struct trace_seq *p, unsigned char *cdb, int len) { switch (cdb[0]) { case READ_6: case WRITE_6: return scsi_trace_rw6(p, cdb, len); case READ_10: case VERIFY: case WRITE_10: case WRITE_SAME: return scsi_trace_rw10(p, cdb, len); case READ_12: case VERIFY_12: case WRITE_12: return scsi_trace_rw12(p, cdb, len); case READ_16: case VERIFY_16: case WRITE_16: case WRITE_SAME_16: return scsi_trace_rw16(p, cdb, len); case UNMAP: return scsi_trace_unmap(p, cdb, len); case SERVICE_ACTION_IN_16: return scsi_trace_service_action_in(p, cdb, len); case VARIABLE_LENGTH_CMD: return scsi_trace_varlen(p, cdb, len); case MAINTENANCE_IN: return scsi_trace_maintenance_in(p, cdb, len); case MAINTENANCE_OUT: return scsi_trace_maintenance_out(p, cdb, len); case ZBC_IN: return scsi_trace_zbc_in(p, cdb, len); case ZBC_OUT: return scsi_trace_zbc_out(p, cdb, len); default: return scsi_trace_misc(p, cdb, len); } } |