1 /*- 2 * Copyright (c) 2003-2009 Silicon Graphics International Corp. 3 * Copyright (c) 2012 The FreeBSD Foundation 4 * Copyright (c) 2014-2017 Alexander Motin <mav@FreeBSD.org> 5 * All rights reserved. 6 * 7 * Portions of this software were developed by Edward Tomasz Napierala 8 * under sponsorship from the FreeBSD Foundation. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions, and the following disclaimer, 15 * without modification. 16 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 17 * substantially similar to the "NO WARRANTY" disclaimer below 18 * ("Disclaimer") and any redistribution must be conditioned upon 19 * including a substantially similar Disclaimer requirement for further 20 * binary redistribution. 21 * 22 * NO WARRANTY 23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 24 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 26 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 27 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 31 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 32 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33 * POSSIBILITY OF SUCH DAMAGES. 34 * 35 * $Id$ 36 */ 37 /* 38 * CAM Target Layer, a SCSI device emulation subsystem. 39 * 40 * Author: Ken Merry <ken@FreeBSD.org> 41 */ 42 43 #define _CTL_C 44 45 #include <sys/cdefs.h> 46 __FBSDID("$FreeBSD$"); 47 48 #include <sys/param.h> 49 #include <sys/systm.h> 50 #include <sys/ctype.h> 51 #include <sys/kernel.h> 52 #include <sys/types.h> 53 #include <sys/kthread.h> 54 #include <sys/bio.h> 55 #include <sys/fcntl.h> 56 #include <sys/lock.h> 57 #include <sys/module.h> 58 #include <sys/mutex.h> 59 #include <sys/condvar.h> 60 #include <sys/malloc.h> 61 #include <sys/conf.h> 62 #include <sys/ioccom.h> 63 #include <sys/queue.h> 64 #include <sys/sbuf.h> 65 #include <sys/smp.h> 66 #include <sys/endian.h> 67 #include <sys/sysctl.h> 68 #include <vm/uma.h> 69 70 #include <cam/cam.h> 71 #include <cam/scsi/scsi_all.h> 72 #include <cam/scsi/scsi_cd.h> 73 #include <cam/scsi/scsi_da.h> 74 #include <cam/ctl/ctl_io.h> 75 #include <cam/ctl/ctl.h> 76 #include <cam/ctl/ctl_frontend.h> 77 #include <cam/ctl/ctl_util.h> 78 #include <cam/ctl/ctl_backend.h> 79 #include <cam/ctl/ctl_ioctl.h> 80 #include <cam/ctl/ctl_ha.h> 81 #include <cam/ctl/ctl_private.h> 82 #include <cam/ctl/ctl_debug.h> 83 #include <cam/ctl/ctl_scsi_all.h> 84 #include <cam/ctl/ctl_error.h> 85 86 struct ctl_softc *control_softc = NULL; 87 88 /* 89 * Template mode pages. 90 */ 91 92 /* 93 * Note that these are default values only. The actual values will be 94 * filled in when the user does a mode sense. 95 */ 96 const static struct scsi_da_rw_recovery_page rw_er_page_default = { 97 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 98 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 99 /*byte3*/SMS_RWER_AWRE|SMS_RWER_ARRE, 100 /*read_retry_count*/0, 101 /*correction_span*/0, 102 /*head_offset_count*/0, 103 /*data_strobe_offset_cnt*/0, 104 /*byte8*/SMS_RWER_LBPERE, 105 /*write_retry_count*/0, 106 /*reserved2*/0, 107 /*recovery_time_limit*/{0, 0}, 108 }; 109 110 const static struct scsi_da_rw_recovery_page rw_er_page_changeable = { 111 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 112 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 113 /*byte3*/SMS_RWER_PER, 114 /*read_retry_count*/0, 115 /*correction_span*/0, 116 /*head_offset_count*/0, 117 /*data_strobe_offset_cnt*/0, 118 /*byte8*/SMS_RWER_LBPERE, 119 /*write_retry_count*/0, 120 /*reserved2*/0, 121 /*recovery_time_limit*/{0, 0}, 122 }; 123 124 const static struct scsi_format_page format_page_default = { 125 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 126 /*page_length*/sizeof(struct scsi_format_page) - 2, 127 /*tracks_per_zone*/ {0, 0}, 128 /*alt_sectors_per_zone*/ {0, 0}, 129 /*alt_tracks_per_zone*/ {0, 0}, 130 /*alt_tracks_per_lun*/ {0, 0}, 131 /*sectors_per_track*/ {(CTL_DEFAULT_SECTORS_PER_TRACK >> 8) & 0xff, 132 CTL_DEFAULT_SECTORS_PER_TRACK & 0xff}, 133 /*bytes_per_sector*/ {0, 0}, 134 /*interleave*/ {0, 0}, 135 /*track_skew*/ {0, 0}, 136 /*cylinder_skew*/ {0, 0}, 137 /*flags*/ SFP_HSEC, 138 /*reserved*/ {0, 0, 0} 139 }; 140 141 const static struct scsi_format_page format_page_changeable = { 142 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 143 /*page_length*/sizeof(struct scsi_format_page) - 2, 144 /*tracks_per_zone*/ {0, 0}, 145 /*alt_sectors_per_zone*/ {0, 0}, 146 /*alt_tracks_per_zone*/ {0, 0}, 147 /*alt_tracks_per_lun*/ {0, 0}, 148 /*sectors_per_track*/ {0, 0}, 149 /*bytes_per_sector*/ {0, 0}, 150 /*interleave*/ {0, 0}, 151 /*track_skew*/ {0, 0}, 152 /*cylinder_skew*/ {0, 0}, 153 /*flags*/ 0, 154 /*reserved*/ {0, 0, 0} 155 }; 156 157 const static struct scsi_rigid_disk_page rigid_disk_page_default = { 158 /*page_code*/SMS_RIGID_DISK_PAGE, 159 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 160 /*cylinders*/ {0, 0, 0}, 161 /*heads*/ CTL_DEFAULT_HEADS, 162 /*start_write_precomp*/ {0, 0, 0}, 163 /*start_reduced_current*/ {0, 0, 0}, 164 /*step_rate*/ {0, 0}, 165 /*landing_zone_cylinder*/ {0, 0, 0}, 166 /*rpl*/ SRDP_RPL_DISABLED, 167 /*rotational_offset*/ 0, 168 /*reserved1*/ 0, 169 /*rotation_rate*/ {(CTL_DEFAULT_ROTATION_RATE >> 8) & 0xff, 170 CTL_DEFAULT_ROTATION_RATE & 0xff}, 171 /*reserved2*/ {0, 0} 172 }; 173 174 const static struct scsi_rigid_disk_page rigid_disk_page_changeable = { 175 /*page_code*/SMS_RIGID_DISK_PAGE, 176 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 177 /*cylinders*/ {0, 0, 0}, 178 /*heads*/ 0, 179 /*start_write_precomp*/ {0, 0, 0}, 180 /*start_reduced_current*/ {0, 0, 0}, 181 /*step_rate*/ {0, 0}, 182 /*landing_zone_cylinder*/ {0, 0, 0}, 183 /*rpl*/ 0, 184 /*rotational_offset*/ 0, 185 /*reserved1*/ 0, 186 /*rotation_rate*/ {0, 0}, 187 /*reserved2*/ {0, 0} 188 }; 189 190 const static struct scsi_da_verify_recovery_page verify_er_page_default = { 191 /*page_code*/SMS_VERIFY_ERROR_RECOVERY_PAGE, 192 /*page_length*/sizeof(struct scsi_da_verify_recovery_page) - 2, 193 /*byte3*/0, 194 /*read_retry_count*/0, 195 /*reserved*/{ 0, 0, 0, 0, 0, 0 }, 196 /*recovery_time_limit*/{0, 0}, 197 }; 198 199 const static struct scsi_da_verify_recovery_page verify_er_page_changeable = { 200 /*page_code*/SMS_VERIFY_ERROR_RECOVERY_PAGE, 201 /*page_length*/sizeof(struct scsi_da_verify_recovery_page) - 2, 202 /*byte3*/SMS_VER_PER, 203 /*read_retry_count*/0, 204 /*reserved*/{ 0, 0, 0, 0, 0, 0 }, 205 /*recovery_time_limit*/{0, 0}, 206 }; 207 208 const static struct scsi_caching_page caching_page_default = { 209 /*page_code*/SMS_CACHING_PAGE, 210 /*page_length*/sizeof(struct scsi_caching_page) - 2, 211 /*flags1*/ SCP_DISC | SCP_WCE, 212 /*ret_priority*/ 0, 213 /*disable_pf_transfer_len*/ {0xff, 0xff}, 214 /*min_prefetch*/ {0, 0}, 215 /*max_prefetch*/ {0xff, 0xff}, 216 /*max_pf_ceiling*/ {0xff, 0xff}, 217 /*flags2*/ 0, 218 /*cache_segments*/ 0, 219 /*cache_seg_size*/ {0, 0}, 220 /*reserved*/ 0, 221 /*non_cache_seg_size*/ {0, 0, 0} 222 }; 223 224 const static struct scsi_caching_page caching_page_changeable = { 225 /*page_code*/SMS_CACHING_PAGE, 226 /*page_length*/sizeof(struct scsi_caching_page) - 2, 227 /*flags1*/ SCP_WCE | SCP_RCD, 228 /*ret_priority*/ 0, 229 /*disable_pf_transfer_len*/ {0, 0}, 230 /*min_prefetch*/ {0, 0}, 231 /*max_prefetch*/ {0, 0}, 232 /*max_pf_ceiling*/ {0, 0}, 233 /*flags2*/ 0, 234 /*cache_segments*/ 0, 235 /*cache_seg_size*/ {0, 0}, 236 /*reserved*/ 0, 237 /*non_cache_seg_size*/ {0, 0, 0} 238 }; 239 240 const static struct scsi_control_page control_page_default = { 241 /*page_code*/SMS_CONTROL_MODE_PAGE, 242 /*page_length*/sizeof(struct scsi_control_page) - 2, 243 /*rlec*/0, 244 /*queue_flags*/SCP_QUEUE_ALG_RESTRICTED, 245 /*eca_and_aen*/0, 246 /*flags4*/SCP_TAS, 247 /*aen_holdoff_period*/{0, 0}, 248 /*busy_timeout_period*/{0, 0}, 249 /*extended_selftest_completion_time*/{0, 0} 250 }; 251 252 const static struct scsi_control_page control_page_changeable = { 253 /*page_code*/SMS_CONTROL_MODE_PAGE, 254 /*page_length*/sizeof(struct scsi_control_page) - 2, 255 /*rlec*/SCP_DSENSE, 256 /*queue_flags*/SCP_QUEUE_ALG_MASK | SCP_NUAR, 257 /*eca_and_aen*/SCP_SWP, 258 /*flags4*/0, 259 /*aen_holdoff_period*/{0, 0}, 260 /*busy_timeout_period*/{0, 0}, 261 /*extended_selftest_completion_time*/{0, 0} 262 }; 263 264 #define CTL_CEM_LEN (sizeof(struct scsi_control_ext_page) - 4) 265 266 const static struct scsi_control_ext_page control_ext_page_default = { 267 /*page_code*/SMS_CONTROL_MODE_PAGE | SMPH_SPF, 268 /*subpage_code*/0x01, 269 /*page_length*/{CTL_CEM_LEN >> 8, CTL_CEM_LEN}, 270 /*flags*/0, 271 /*prio*/0, 272 /*max_sense*/0 273 }; 274 275 const static struct scsi_control_ext_page control_ext_page_changeable = { 276 /*page_code*/SMS_CONTROL_MODE_PAGE | SMPH_SPF, 277 /*subpage_code*/0x01, 278 /*page_length*/{CTL_CEM_LEN >> 8, CTL_CEM_LEN}, 279 /*flags*/0, 280 /*prio*/0, 281 /*max_sense*/0xff 282 }; 283 284 const static struct scsi_info_exceptions_page ie_page_default = { 285 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 286 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 287 /*info_flags*/SIEP_FLAGS_EWASC, 288 /*mrie*/SIEP_MRIE_NO, 289 /*interval_timer*/{0, 0, 0, 0}, 290 /*report_count*/{0, 0, 0, 1} 291 }; 292 293 const static struct scsi_info_exceptions_page ie_page_changeable = { 294 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 295 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 296 /*info_flags*/SIEP_FLAGS_EWASC | SIEP_FLAGS_DEXCPT | SIEP_FLAGS_TEST | 297 SIEP_FLAGS_LOGERR, 298 /*mrie*/0x0f, 299 /*interval_timer*/{0xff, 0xff, 0xff, 0xff}, 300 /*report_count*/{0xff, 0xff, 0xff, 0xff} 301 }; 302 303 #define CTL_LBPM_LEN (sizeof(struct ctl_logical_block_provisioning_page) - 4) 304 305 const static struct ctl_logical_block_provisioning_page lbp_page_default = {{ 306 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 307 /*subpage_code*/0x02, 308 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 309 /*flags*/0, 310 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 311 /*descr*/{}}, 312 {{/*flags*/0, 313 /*resource*/0x01, 314 /*reserved*/{0, 0}, 315 /*count*/{0, 0, 0, 0}}, 316 {/*flags*/0, 317 /*resource*/0x02, 318 /*reserved*/{0, 0}, 319 /*count*/{0, 0, 0, 0}}, 320 {/*flags*/0, 321 /*resource*/0xf1, 322 /*reserved*/{0, 0}, 323 /*count*/{0, 0, 0, 0}}, 324 {/*flags*/0, 325 /*resource*/0xf2, 326 /*reserved*/{0, 0}, 327 /*count*/{0, 0, 0, 0}} 328 } 329 }; 330 331 const static struct ctl_logical_block_provisioning_page lbp_page_changeable = {{ 332 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 333 /*subpage_code*/0x02, 334 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 335 /*flags*/SLBPP_SITUA, 336 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 337 /*descr*/{}}, 338 {{/*flags*/0, 339 /*resource*/0, 340 /*reserved*/{0, 0}, 341 /*count*/{0, 0, 0, 0}}, 342 {/*flags*/0, 343 /*resource*/0, 344 /*reserved*/{0, 0}, 345 /*count*/{0, 0, 0, 0}}, 346 {/*flags*/0, 347 /*resource*/0, 348 /*reserved*/{0, 0}, 349 /*count*/{0, 0, 0, 0}}, 350 {/*flags*/0, 351 /*resource*/0, 352 /*reserved*/{0, 0}, 353 /*count*/{0, 0, 0, 0}} 354 } 355 }; 356 357 const static struct scsi_cddvd_capabilities_page cddvd_page_default = { 358 /*page_code*/SMS_CDDVD_CAPS_PAGE, 359 /*page_length*/sizeof(struct scsi_cddvd_capabilities_page) - 2, 360 /*caps1*/0x3f, 361 /*caps2*/0x00, 362 /*caps3*/0xf0, 363 /*caps4*/0x00, 364 /*caps5*/0x29, 365 /*caps6*/0x00, 366 /*obsolete*/{0, 0}, 367 /*nvol_levels*/{0, 0}, 368 /*buffer_size*/{8, 0}, 369 /*obsolete2*/{0, 0}, 370 /*reserved*/0, 371 /*digital*/0, 372 /*obsolete3*/0, 373 /*copy_management*/0, 374 /*reserved2*/0, 375 /*rotation_control*/0, 376 /*cur_write_speed*/0, 377 /*num_speed_descr*/0, 378 }; 379 380 const static struct scsi_cddvd_capabilities_page cddvd_page_changeable = { 381 /*page_code*/SMS_CDDVD_CAPS_PAGE, 382 /*page_length*/sizeof(struct scsi_cddvd_capabilities_page) - 2, 383 /*caps1*/0, 384 /*caps2*/0, 385 /*caps3*/0, 386 /*caps4*/0, 387 /*caps5*/0, 388 /*caps6*/0, 389 /*obsolete*/{0, 0}, 390 /*nvol_levels*/{0, 0}, 391 /*buffer_size*/{0, 0}, 392 /*obsolete2*/{0, 0}, 393 /*reserved*/0, 394 /*digital*/0, 395 /*obsolete3*/0, 396 /*copy_management*/0, 397 /*reserved2*/0, 398 /*rotation_control*/0, 399 /*cur_write_speed*/0, 400 /*num_speed_descr*/0, 401 }; 402 403 SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 404 static int worker_threads = -1; 405 SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 406 &worker_threads, 1, "Number of worker threads"); 407 static int ctl_debug = CTL_DEBUG_NONE; 408 SYSCTL_INT(_kern_cam_ctl, OID_AUTO, debug, CTLFLAG_RWTUN, 409 &ctl_debug, 0, "Enabled debug flags"); 410 static int ctl_lun_map_size = 1024; 411 SYSCTL_INT(_kern_cam_ctl, OID_AUTO, lun_map_size, CTLFLAG_RWTUN, 412 &ctl_lun_map_size, 0, "Size of per-port LUN map (max LUN + 1)"); 413 414 /* 415 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 416 * Extended INQUIRY Data (0x86), Mode Page Policy (0x87), 417 * SCSI Ports (0x88), Third-party Copy (0x8F), Block limits (0xB0), 418 * Block Device Characteristics (0xB1) and Logical Block Provisioning (0xB2) 419 */ 420 #define SCSI_EVPD_NUM_SUPPORTED_PAGES 10 421 422 static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 423 int param); 424 static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 425 static void ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest); 426 static int ctl_init(void); 427 void ctl_shutdown(void); 428 static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 429 static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 430 static void ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 431 static void ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 432 struct ctl_ooa *ooa_hdr, 433 struct ctl_ooa_entry *kern_entries); 434 static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 435 struct thread *td); 436 static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 437 struct ctl_be_lun *be_lun); 438 static int ctl_free_lun(struct ctl_lun *lun); 439 static void ctl_create_lun(struct ctl_be_lun *be_lun); 440 441 static int ctl_do_mode_select(union ctl_io *io); 442 static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 443 uint64_t res_key, uint64_t sa_res_key, 444 uint8_t type, uint32_t residx, 445 struct ctl_scsiio *ctsio, 446 struct scsi_per_res_out *cdb, 447 struct scsi_per_res_out_parms* param); 448 static void ctl_pro_preempt_other(struct ctl_lun *lun, 449 union ctl_ha_msg *msg); 450 static void ctl_hndl_per_res_out_on_other_sc(union ctl_io *io); 451 static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 452 static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 453 static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 454 static int ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len); 455 static int ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len); 456 static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 457 int alloc_len); 458 static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 459 int alloc_len); 460 static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 461 static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 462 static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 463 static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 464 static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len); 465 static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2, 466 bool seq); 467 static ctl_action ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2); 468 static ctl_action ctl_check_for_blockage(struct ctl_lun *lun, 469 union ctl_io *pending_io, union ctl_io *ooa_io); 470 static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 471 union ctl_io *starting_io); 472 static int ctl_check_blocked(struct ctl_lun *lun); 473 static int ctl_scsiio_lun_check(struct ctl_lun *lun, 474 const struct ctl_cmd_entry *entry, 475 struct ctl_scsiio *ctsio); 476 static void ctl_failover_lun(union ctl_io *io); 477 static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 478 struct ctl_scsiio *ctsio); 479 static int ctl_scsiio(struct ctl_scsiio *ctsio); 480 481 static int ctl_bus_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 482 static int ctl_target_reset(struct ctl_softc *ctl_softc, union ctl_io *io, 483 ctl_ua_type ua_type); 484 static int ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, 485 ctl_ua_type ua_type); 486 static int ctl_lun_reset(struct ctl_softc *ctl_softc, union ctl_io *io); 487 static int ctl_abort_task(union ctl_io *io); 488 static int ctl_abort_task_set(union ctl_io *io); 489 static int ctl_query_task(union ctl_io *io, int task_set); 490 static int ctl_i_t_nexus_reset(union ctl_io *io); 491 static int ctl_query_async_event(union ctl_io *io); 492 static void ctl_run_task(union ctl_io *io); 493 #ifdef CTL_IO_DELAY 494 static void ctl_datamove_timer_wakeup(void *arg); 495 static void ctl_done_timer_wakeup(void *arg); 496 #endif /* CTL_IO_DELAY */ 497 498 static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 499 static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 500 static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 501 static void ctl_datamove_remote_write(union ctl_io *io); 502 static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 503 static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 504 static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 505 static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 506 ctl_ha_dt_cb callback); 507 static void ctl_datamove_remote_read(union ctl_io *io); 508 static void ctl_datamove_remote(union ctl_io *io); 509 static void ctl_process_done(union ctl_io *io); 510 static void ctl_lun_thread(void *arg); 511 static void ctl_thresh_thread(void *arg); 512 static void ctl_work_thread(void *arg); 513 static void ctl_enqueue_incoming(union ctl_io *io); 514 static void ctl_enqueue_rtr(union ctl_io *io); 515 static void ctl_enqueue_done(union ctl_io *io); 516 static void ctl_enqueue_isc(union ctl_io *io); 517 static const struct ctl_cmd_entry * 518 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa); 519 static const struct ctl_cmd_entry * 520 ctl_validate_command(struct ctl_scsiio *ctsio); 521 static int ctl_cmd_applicable(uint8_t lun_type, 522 const struct ctl_cmd_entry *entry); 523 524 static uint64_t ctl_get_prkey(struct ctl_lun *lun, uint32_t residx); 525 static void ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx); 526 static void ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx); 527 static void ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key); 528 529 /* 530 * Load the serialization table. This isn't very pretty, but is probably 531 * the easiest way to do it. 532 */ 533 #include "ctl_ser_table.c" 534 535 /* 536 * We only need to define open, close and ioctl routines for this driver. 537 */ 538 static struct cdevsw ctl_cdevsw = { 539 .d_version = D_VERSION, 540 .d_flags = 0, 541 .d_open = ctl_open, 542 .d_close = ctl_close, 543 .d_ioctl = ctl_ioctl, 544 .d_name = "ctl", 545 }; 546 547 548 MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 549 550 static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 551 552 static moduledata_t ctl_moduledata = { 553 "ctl", 554 ctl_module_event_handler, 555 NULL 556 }; 557 558 DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 559 MODULE_VERSION(ctl, 1); 560 561 static struct ctl_frontend ha_frontend = 562 { 563 .name = "ha", 564 }; 565 566 static void 567 ctl_ha_datamove(union ctl_io *io) 568 { 569 struct ctl_lun *lun = CTL_LUN(io); 570 struct ctl_sg_entry *sgl; 571 union ctl_ha_msg msg; 572 uint32_t sg_entries_sent; 573 int do_sg_copy, i, j; 574 575 memset(&msg.dt, 0, sizeof(msg.dt)); 576 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 577 msg.hdr.original_sc = io->io_hdr.original_sc; 578 msg.hdr.serializing_sc = io; 579 msg.hdr.nexus = io->io_hdr.nexus; 580 msg.hdr.status = io->io_hdr.status; 581 msg.dt.flags = io->io_hdr.flags; 582 583 /* 584 * We convert everything into a S/G list here. We can't 585 * pass by reference, only by value between controllers. 586 * So we can't pass a pointer to the S/G list, only as many 587 * S/G entries as we can fit in here. If it's possible for 588 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 589 * then we need to break this up into multiple transfers. 590 */ 591 if (io->scsiio.kern_sg_entries == 0) { 592 msg.dt.kern_sg_entries = 1; 593 #if 0 594 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 595 msg.dt.sg_list[0].addr = io->scsiio.kern_data_ptr; 596 } else { 597 /* XXX KDM use busdma here! */ 598 msg.dt.sg_list[0].addr = 599 (void *)vtophys(io->scsiio.kern_data_ptr); 600 } 601 #else 602 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 603 ("HA does not support BUS_ADDR")); 604 msg.dt.sg_list[0].addr = io->scsiio.kern_data_ptr; 605 #endif 606 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 607 do_sg_copy = 0; 608 } else { 609 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 610 do_sg_copy = 1; 611 } 612 613 msg.dt.kern_data_len = io->scsiio.kern_data_len; 614 msg.dt.kern_total_len = io->scsiio.kern_total_len; 615 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 616 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 617 msg.dt.sg_sequence = 0; 618 619 /* 620 * Loop until we've sent all of the S/G entries. On the 621 * other end, we'll recompose these S/G entries into one 622 * contiguous list before processing. 623 */ 624 for (sg_entries_sent = 0; sg_entries_sent < msg.dt.kern_sg_entries; 625 msg.dt.sg_sequence++) { 626 msg.dt.cur_sg_entries = MIN((sizeof(msg.dt.sg_list) / 627 sizeof(msg.dt.sg_list[0])), 628 msg.dt.kern_sg_entries - sg_entries_sent); 629 if (do_sg_copy != 0) { 630 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 631 for (i = sg_entries_sent, j = 0; 632 i < msg.dt.cur_sg_entries; i++, j++) { 633 #if 0 634 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 635 msg.dt.sg_list[j].addr = sgl[i].addr; 636 } else { 637 /* XXX KDM use busdma here! */ 638 msg.dt.sg_list[j].addr = 639 (void *)vtophys(sgl[i].addr); 640 } 641 #else 642 KASSERT((io->io_hdr.flags & 643 CTL_FLAG_BUS_ADDR) == 0, 644 ("HA does not support BUS_ADDR")); 645 msg.dt.sg_list[j].addr = sgl[i].addr; 646 #endif 647 msg.dt.sg_list[j].len = sgl[i].len; 648 } 649 } 650 651 sg_entries_sent += msg.dt.cur_sg_entries; 652 msg.dt.sg_last = (sg_entries_sent >= msg.dt.kern_sg_entries); 653 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 654 sizeof(msg.dt) - sizeof(msg.dt.sg_list) + 655 sizeof(struct ctl_sg_entry) * msg.dt.cur_sg_entries, 656 M_WAITOK) > CTL_HA_STATUS_SUCCESS) { 657 io->io_hdr.port_status = 31341; 658 io->scsiio.be_move_done(io); 659 return; 660 } 661 msg.dt.sent_sg_entries = sg_entries_sent; 662 } 663 664 /* 665 * Officially handover the request from us to peer. 666 * If failover has just happened, then we must return error. 667 * If failover happen just after, then it is not our problem. 668 */ 669 if (lun) 670 mtx_lock(&lun->lun_lock); 671 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 672 if (lun) 673 mtx_unlock(&lun->lun_lock); 674 io->io_hdr.port_status = 31342; 675 io->scsiio.be_move_done(io); 676 return; 677 } 678 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 679 io->io_hdr.flags |= CTL_FLAG_DMA_INPROG; 680 if (lun) 681 mtx_unlock(&lun->lun_lock); 682 } 683 684 static void 685 ctl_ha_done(union ctl_io *io) 686 { 687 union ctl_ha_msg msg; 688 689 if (io->io_hdr.io_type == CTL_IO_SCSI) { 690 memset(&msg, 0, sizeof(msg)); 691 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 692 msg.hdr.original_sc = io->io_hdr.original_sc; 693 msg.hdr.nexus = io->io_hdr.nexus; 694 msg.hdr.status = io->io_hdr.status; 695 msg.scsi.scsi_status = io->scsiio.scsi_status; 696 msg.scsi.tag_num = io->scsiio.tag_num; 697 msg.scsi.tag_type = io->scsiio.tag_type; 698 msg.scsi.sense_len = io->scsiio.sense_len; 699 msg.scsi.sense_residual = io->scsiio.sense_residual; 700 msg.scsi.residual = io->scsiio.residual; 701 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 702 io->scsiio.sense_len); 703 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 704 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 705 msg.scsi.sense_len, M_WAITOK); 706 } 707 ctl_free_io(io); 708 } 709 710 static void 711 ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 712 union ctl_ha_msg *msg_info) 713 { 714 struct ctl_scsiio *ctsio; 715 716 if (msg_info->hdr.original_sc == NULL) { 717 printf("%s: original_sc == NULL!\n", __func__); 718 /* XXX KDM now what? */ 719 return; 720 } 721 722 ctsio = &msg_info->hdr.original_sc->scsiio; 723 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 724 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 725 ctsio->io_hdr.status = msg_info->hdr.status; 726 ctsio->scsi_status = msg_info->scsi.scsi_status; 727 ctsio->sense_len = msg_info->scsi.sense_len; 728 ctsio->sense_residual = msg_info->scsi.sense_residual; 729 ctsio->residual = msg_info->scsi.residual; 730 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 731 msg_info->scsi.sense_len); 732 ctl_enqueue_isc((union ctl_io *)ctsio); 733 } 734 735 static void 736 ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 737 union ctl_ha_msg *msg_info) 738 { 739 struct ctl_scsiio *ctsio; 740 741 if (msg_info->hdr.serializing_sc == NULL) { 742 printf("%s: serializing_sc == NULL!\n", __func__); 743 /* XXX KDM now what? */ 744 return; 745 } 746 747 ctsio = &msg_info->hdr.serializing_sc->scsiio; 748 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 749 ctl_enqueue_isc((union ctl_io *)ctsio); 750 } 751 752 void 753 ctl_isc_announce_lun(struct ctl_lun *lun) 754 { 755 struct ctl_softc *softc = lun->ctl_softc; 756 union ctl_ha_msg *msg; 757 struct ctl_ha_msg_lun_pr_key pr_key; 758 int i, k; 759 760 if (softc->ha_link != CTL_HA_LINK_ONLINE) 761 return; 762 mtx_lock(&lun->lun_lock); 763 i = sizeof(msg->lun); 764 if (lun->lun_devid) 765 i += lun->lun_devid->len; 766 i += sizeof(pr_key) * lun->pr_key_count; 767 alloc: 768 mtx_unlock(&lun->lun_lock); 769 msg = malloc(i, M_CTL, M_WAITOK); 770 mtx_lock(&lun->lun_lock); 771 k = sizeof(msg->lun); 772 if (lun->lun_devid) 773 k += lun->lun_devid->len; 774 k += sizeof(pr_key) * lun->pr_key_count; 775 if (i < k) { 776 free(msg, M_CTL); 777 i = k; 778 goto alloc; 779 } 780 bzero(&msg->lun, sizeof(msg->lun)); 781 msg->hdr.msg_type = CTL_MSG_LUN_SYNC; 782 msg->hdr.nexus.targ_lun = lun->lun; 783 msg->hdr.nexus.targ_mapped_lun = lun->lun; 784 msg->lun.flags = lun->flags; 785 msg->lun.pr_generation = lun->pr_generation; 786 msg->lun.pr_res_idx = lun->pr_res_idx; 787 msg->lun.pr_res_type = lun->pr_res_type; 788 msg->lun.pr_key_count = lun->pr_key_count; 789 i = 0; 790 if (lun->lun_devid) { 791 msg->lun.lun_devid_len = lun->lun_devid->len; 792 memcpy(&msg->lun.data[i], lun->lun_devid->data, 793 msg->lun.lun_devid_len); 794 i += msg->lun.lun_devid_len; 795 } 796 for (k = 0; k < CTL_MAX_INITIATORS; k++) { 797 if ((pr_key.pr_key = ctl_get_prkey(lun, k)) == 0) 798 continue; 799 pr_key.pr_iid = k; 800 memcpy(&msg->lun.data[i], &pr_key, sizeof(pr_key)); 801 i += sizeof(pr_key); 802 } 803 mtx_unlock(&lun->lun_lock); 804 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 805 M_WAITOK); 806 free(msg, M_CTL); 807 808 if (lun->flags & CTL_LUN_PRIMARY_SC) { 809 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 810 ctl_isc_announce_mode(lun, -1, 811 lun->mode_pages.index[i].page_code & SMPH_PC_MASK, 812 lun->mode_pages.index[i].subpage); 813 } 814 } 815 } 816 817 void 818 ctl_isc_announce_port(struct ctl_port *port) 819 { 820 struct ctl_softc *softc = port->ctl_softc; 821 union ctl_ha_msg *msg; 822 int i; 823 824 if (port->targ_port < softc->port_min || 825 port->targ_port >= softc->port_max || 826 softc->ha_link != CTL_HA_LINK_ONLINE) 827 return; 828 i = sizeof(msg->port) + strlen(port->port_name) + 1; 829 if (port->lun_map) 830 i += port->lun_map_size * sizeof(uint32_t); 831 if (port->port_devid) 832 i += port->port_devid->len; 833 if (port->target_devid) 834 i += port->target_devid->len; 835 if (port->init_devid) 836 i += port->init_devid->len; 837 msg = malloc(i, M_CTL, M_WAITOK); 838 bzero(&msg->port, sizeof(msg->port)); 839 msg->hdr.msg_type = CTL_MSG_PORT_SYNC; 840 msg->hdr.nexus.targ_port = port->targ_port; 841 msg->port.port_type = port->port_type; 842 msg->port.physical_port = port->physical_port; 843 msg->port.virtual_port = port->virtual_port; 844 msg->port.status = port->status; 845 i = 0; 846 msg->port.name_len = sprintf(&msg->port.data[i], 847 "%d:%s", softc->ha_id, port->port_name) + 1; 848 i += msg->port.name_len; 849 if (port->lun_map) { 850 msg->port.lun_map_len = port->lun_map_size * sizeof(uint32_t); 851 memcpy(&msg->port.data[i], port->lun_map, 852 msg->port.lun_map_len); 853 i += msg->port.lun_map_len; 854 } 855 if (port->port_devid) { 856 msg->port.port_devid_len = port->port_devid->len; 857 memcpy(&msg->port.data[i], port->port_devid->data, 858 msg->port.port_devid_len); 859 i += msg->port.port_devid_len; 860 } 861 if (port->target_devid) { 862 msg->port.target_devid_len = port->target_devid->len; 863 memcpy(&msg->port.data[i], port->target_devid->data, 864 msg->port.target_devid_len); 865 i += msg->port.target_devid_len; 866 } 867 if (port->init_devid) { 868 msg->port.init_devid_len = port->init_devid->len; 869 memcpy(&msg->port.data[i], port->init_devid->data, 870 msg->port.init_devid_len); 871 i += msg->port.init_devid_len; 872 } 873 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 874 M_WAITOK); 875 free(msg, M_CTL); 876 } 877 878 void 879 ctl_isc_announce_iid(struct ctl_port *port, int iid) 880 { 881 struct ctl_softc *softc = port->ctl_softc; 882 union ctl_ha_msg *msg; 883 int i, l; 884 885 if (port->targ_port < softc->port_min || 886 port->targ_port >= softc->port_max || 887 softc->ha_link != CTL_HA_LINK_ONLINE) 888 return; 889 mtx_lock(&softc->ctl_lock); 890 i = sizeof(msg->iid); 891 l = 0; 892 if (port->wwpn_iid[iid].name) 893 l = strlen(port->wwpn_iid[iid].name) + 1; 894 i += l; 895 msg = malloc(i, M_CTL, M_NOWAIT); 896 if (msg == NULL) { 897 mtx_unlock(&softc->ctl_lock); 898 return; 899 } 900 bzero(&msg->iid, sizeof(msg->iid)); 901 msg->hdr.msg_type = CTL_MSG_IID_SYNC; 902 msg->hdr.nexus.targ_port = port->targ_port; 903 msg->hdr.nexus.initid = iid; 904 msg->iid.in_use = port->wwpn_iid[iid].in_use; 905 msg->iid.name_len = l; 906 msg->iid.wwpn = port->wwpn_iid[iid].wwpn; 907 if (port->wwpn_iid[iid].name) 908 strlcpy(msg->iid.data, port->wwpn_iid[iid].name, l); 909 mtx_unlock(&softc->ctl_lock); 910 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->iid, i, M_NOWAIT); 911 free(msg, M_CTL); 912 } 913 914 void 915 ctl_isc_announce_mode(struct ctl_lun *lun, uint32_t initidx, 916 uint8_t page, uint8_t subpage) 917 { 918 struct ctl_softc *softc = lun->ctl_softc; 919 union ctl_ha_msg msg; 920 u_int i; 921 922 if (softc->ha_link != CTL_HA_LINK_ONLINE) 923 return; 924 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 925 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) == 926 page && lun->mode_pages.index[i].subpage == subpage) 927 break; 928 } 929 if (i == CTL_NUM_MODE_PAGES) 930 return; 931 932 /* Don't try to replicate pages not present on this device. */ 933 if (lun->mode_pages.index[i].page_data == NULL) 934 return; 935 936 bzero(&msg.mode, sizeof(msg.mode)); 937 msg.hdr.msg_type = CTL_MSG_MODE_SYNC; 938 msg.hdr.nexus.targ_port = initidx / CTL_MAX_INIT_PER_PORT; 939 msg.hdr.nexus.initid = initidx % CTL_MAX_INIT_PER_PORT; 940 msg.hdr.nexus.targ_lun = lun->lun; 941 msg.hdr.nexus.targ_mapped_lun = lun->lun; 942 msg.mode.page_code = page; 943 msg.mode.subpage = subpage; 944 msg.mode.page_len = lun->mode_pages.index[i].page_len; 945 memcpy(msg.mode.data, lun->mode_pages.index[i].page_data, 946 msg.mode.page_len); 947 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg.mode, sizeof(msg.mode), 948 M_WAITOK); 949 } 950 951 static void 952 ctl_isc_ha_link_up(struct ctl_softc *softc) 953 { 954 struct ctl_port *port; 955 struct ctl_lun *lun; 956 union ctl_ha_msg msg; 957 int i; 958 959 /* Announce this node parameters to peer for validation. */ 960 msg.login.msg_type = CTL_MSG_LOGIN; 961 msg.login.version = CTL_HA_VERSION; 962 msg.login.ha_mode = softc->ha_mode; 963 msg.login.ha_id = softc->ha_id; 964 msg.login.max_luns = CTL_MAX_LUNS; 965 msg.login.max_ports = CTL_MAX_PORTS; 966 msg.login.max_init_per_port = CTL_MAX_INIT_PER_PORT; 967 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg.login, sizeof(msg.login), 968 M_WAITOK); 969 970 STAILQ_FOREACH(port, &softc->port_list, links) { 971 ctl_isc_announce_port(port); 972 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 973 if (port->wwpn_iid[i].in_use) 974 ctl_isc_announce_iid(port, i); 975 } 976 } 977 STAILQ_FOREACH(lun, &softc->lun_list, links) 978 ctl_isc_announce_lun(lun); 979 } 980 981 static void 982 ctl_isc_ha_link_down(struct ctl_softc *softc) 983 { 984 struct ctl_port *port; 985 struct ctl_lun *lun; 986 union ctl_io *io; 987 int i; 988 989 mtx_lock(&softc->ctl_lock); 990 STAILQ_FOREACH(lun, &softc->lun_list, links) { 991 mtx_lock(&lun->lun_lock); 992 if (lun->flags & CTL_LUN_PEER_SC_PRIMARY) { 993 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 994 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 995 } 996 mtx_unlock(&lun->lun_lock); 997 998 mtx_unlock(&softc->ctl_lock); 999 io = ctl_alloc_io(softc->othersc_pool); 1000 mtx_lock(&softc->ctl_lock); 1001 ctl_zero_io(io); 1002 io->io_hdr.msg_type = CTL_MSG_FAILOVER; 1003 io->io_hdr.nexus.targ_mapped_lun = lun->lun; 1004 ctl_enqueue_isc(io); 1005 } 1006 1007 STAILQ_FOREACH(port, &softc->port_list, links) { 1008 if (port->targ_port >= softc->port_min && 1009 port->targ_port < softc->port_max) 1010 continue; 1011 port->status &= ~CTL_PORT_STATUS_ONLINE; 1012 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1013 port->wwpn_iid[i].in_use = 0; 1014 free(port->wwpn_iid[i].name, M_CTL); 1015 port->wwpn_iid[i].name = NULL; 1016 } 1017 } 1018 mtx_unlock(&softc->ctl_lock); 1019 } 1020 1021 static void 1022 ctl_isc_ua(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1023 { 1024 struct ctl_lun *lun; 1025 uint32_t iid = ctl_get_initindex(&msg->hdr.nexus); 1026 1027 mtx_lock(&softc->ctl_lock); 1028 if (msg->hdr.nexus.targ_mapped_lun >= CTL_MAX_LUNS || 1029 (lun = softc->ctl_luns[msg->hdr.nexus.targ_mapped_lun]) == NULL) { 1030 mtx_unlock(&softc->ctl_lock); 1031 return; 1032 } 1033 mtx_lock(&lun->lun_lock); 1034 mtx_unlock(&softc->ctl_lock); 1035 if (msg->ua.ua_type == CTL_UA_THIN_PROV_THRES && msg->ua.ua_set) 1036 memcpy(lun->ua_tpt_info, msg->ua.ua_info, 8); 1037 if (msg->ua.ua_all) { 1038 if (msg->ua.ua_set) 1039 ctl_est_ua_all(lun, iid, msg->ua.ua_type); 1040 else 1041 ctl_clr_ua_all(lun, iid, msg->ua.ua_type); 1042 } else { 1043 if (msg->ua.ua_set) 1044 ctl_est_ua(lun, iid, msg->ua.ua_type); 1045 else 1046 ctl_clr_ua(lun, iid, msg->ua.ua_type); 1047 } 1048 mtx_unlock(&lun->lun_lock); 1049 } 1050 1051 static void 1052 ctl_isc_lun_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1053 { 1054 struct ctl_lun *lun; 1055 struct ctl_ha_msg_lun_pr_key pr_key; 1056 int i, k; 1057 ctl_lun_flags oflags; 1058 uint32_t targ_lun; 1059 1060 targ_lun = msg->hdr.nexus.targ_mapped_lun; 1061 mtx_lock(&softc->ctl_lock); 1062 if (targ_lun >= CTL_MAX_LUNS || 1063 (lun = softc->ctl_luns[targ_lun]) == NULL) { 1064 mtx_unlock(&softc->ctl_lock); 1065 return; 1066 } 1067 mtx_lock(&lun->lun_lock); 1068 mtx_unlock(&softc->ctl_lock); 1069 if (lun->flags & CTL_LUN_DISABLED) { 1070 mtx_unlock(&lun->lun_lock); 1071 return; 1072 } 1073 i = (lun->lun_devid != NULL) ? lun->lun_devid->len : 0; 1074 if (msg->lun.lun_devid_len != i || (i > 0 && 1075 memcmp(&msg->lun.data[0], lun->lun_devid->data, i) != 0)) { 1076 mtx_unlock(&lun->lun_lock); 1077 printf("%s: Received conflicting HA LUN %d\n", 1078 __func__, targ_lun); 1079 return; 1080 } else { 1081 /* Record whether peer is primary. */ 1082 oflags = lun->flags; 1083 if ((msg->lun.flags & CTL_LUN_PRIMARY_SC) && 1084 (msg->lun.flags & CTL_LUN_DISABLED) == 0) 1085 lun->flags |= CTL_LUN_PEER_SC_PRIMARY; 1086 else 1087 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 1088 if (oflags != lun->flags) 1089 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 1090 1091 /* If peer is primary and we are not -- use data */ 1092 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 1093 (lun->flags & CTL_LUN_PEER_SC_PRIMARY)) { 1094 lun->pr_generation = msg->lun.pr_generation; 1095 lun->pr_res_idx = msg->lun.pr_res_idx; 1096 lun->pr_res_type = msg->lun.pr_res_type; 1097 lun->pr_key_count = msg->lun.pr_key_count; 1098 for (k = 0; k < CTL_MAX_INITIATORS; k++) 1099 ctl_clr_prkey(lun, k); 1100 for (k = 0; k < msg->lun.pr_key_count; k++) { 1101 memcpy(&pr_key, &msg->lun.data[i], 1102 sizeof(pr_key)); 1103 ctl_alloc_prkey(lun, pr_key.pr_iid); 1104 ctl_set_prkey(lun, pr_key.pr_iid, 1105 pr_key.pr_key); 1106 i += sizeof(pr_key); 1107 } 1108 } 1109 1110 mtx_unlock(&lun->lun_lock); 1111 CTL_DEBUG_PRINT(("%s: Known LUN %d, peer is %s\n", 1112 __func__, targ_lun, 1113 (msg->lun.flags & CTL_LUN_PRIMARY_SC) ? 1114 "primary" : "secondary")); 1115 1116 /* If we are primary but peer doesn't know -- notify */ 1117 if ((lun->flags & CTL_LUN_PRIMARY_SC) && 1118 (msg->lun.flags & CTL_LUN_PEER_SC_PRIMARY) == 0) 1119 ctl_isc_announce_lun(lun); 1120 } 1121 } 1122 1123 static void 1124 ctl_isc_port_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1125 { 1126 struct ctl_port *port; 1127 struct ctl_lun *lun; 1128 int i, new; 1129 1130 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 1131 if (port == NULL) { 1132 CTL_DEBUG_PRINT(("%s: New port %d\n", __func__, 1133 msg->hdr.nexus.targ_port)); 1134 new = 1; 1135 port = malloc(sizeof(*port), M_CTL, M_WAITOK | M_ZERO); 1136 port->frontend = &ha_frontend; 1137 port->targ_port = msg->hdr.nexus.targ_port; 1138 port->fe_datamove = ctl_ha_datamove; 1139 port->fe_done = ctl_ha_done; 1140 } else if (port->frontend == &ha_frontend) { 1141 CTL_DEBUG_PRINT(("%s: Updated port %d\n", __func__, 1142 msg->hdr.nexus.targ_port)); 1143 new = 0; 1144 } else { 1145 printf("%s: Received conflicting HA port %d\n", 1146 __func__, msg->hdr.nexus.targ_port); 1147 return; 1148 } 1149 port->port_type = msg->port.port_type; 1150 port->physical_port = msg->port.physical_port; 1151 port->virtual_port = msg->port.virtual_port; 1152 port->status = msg->port.status; 1153 i = 0; 1154 free(port->port_name, M_CTL); 1155 port->port_name = strndup(&msg->port.data[i], msg->port.name_len, 1156 M_CTL); 1157 i += msg->port.name_len; 1158 if (msg->port.lun_map_len != 0) { 1159 if (port->lun_map == NULL || 1160 port->lun_map_size * sizeof(uint32_t) < 1161 msg->port.lun_map_len) { 1162 port->lun_map_size = 0; 1163 free(port->lun_map, M_CTL); 1164 port->lun_map = malloc(msg->port.lun_map_len, 1165 M_CTL, M_WAITOK); 1166 } 1167 memcpy(port->lun_map, &msg->port.data[i], msg->port.lun_map_len); 1168 port->lun_map_size = msg->port.lun_map_len / sizeof(uint32_t); 1169 i += msg->port.lun_map_len; 1170 } else { 1171 port->lun_map_size = 0; 1172 free(port->lun_map, M_CTL); 1173 port->lun_map = NULL; 1174 } 1175 if (msg->port.port_devid_len != 0) { 1176 if (port->port_devid == NULL || 1177 port->port_devid->len < msg->port.port_devid_len) { 1178 free(port->port_devid, M_CTL); 1179 port->port_devid = malloc(sizeof(struct ctl_devid) + 1180 msg->port.port_devid_len, M_CTL, M_WAITOK); 1181 } 1182 memcpy(port->port_devid->data, &msg->port.data[i], 1183 msg->port.port_devid_len); 1184 port->port_devid->len = msg->port.port_devid_len; 1185 i += msg->port.port_devid_len; 1186 } else { 1187 free(port->port_devid, M_CTL); 1188 port->port_devid = NULL; 1189 } 1190 if (msg->port.target_devid_len != 0) { 1191 if (port->target_devid == NULL || 1192 port->target_devid->len < msg->port.target_devid_len) { 1193 free(port->target_devid, M_CTL); 1194 port->target_devid = malloc(sizeof(struct ctl_devid) + 1195 msg->port.target_devid_len, M_CTL, M_WAITOK); 1196 } 1197 memcpy(port->target_devid->data, &msg->port.data[i], 1198 msg->port.target_devid_len); 1199 port->target_devid->len = msg->port.target_devid_len; 1200 i += msg->port.target_devid_len; 1201 } else { 1202 free(port->target_devid, M_CTL); 1203 port->target_devid = NULL; 1204 } 1205 if (msg->port.init_devid_len != 0) { 1206 if (port->init_devid == NULL || 1207 port->init_devid->len < msg->port.init_devid_len) { 1208 free(port->init_devid, M_CTL); 1209 port->init_devid = malloc(sizeof(struct ctl_devid) + 1210 msg->port.init_devid_len, M_CTL, M_WAITOK); 1211 } 1212 memcpy(port->init_devid->data, &msg->port.data[i], 1213 msg->port.init_devid_len); 1214 port->init_devid->len = msg->port.init_devid_len; 1215 i += msg->port.init_devid_len; 1216 } else { 1217 free(port->init_devid, M_CTL); 1218 port->init_devid = NULL; 1219 } 1220 if (new) { 1221 if (ctl_port_register(port) != 0) { 1222 printf("%s: ctl_port_register() failed with error\n", 1223 __func__); 1224 } 1225 } 1226 mtx_lock(&softc->ctl_lock); 1227 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1228 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 1229 continue; 1230 mtx_lock(&lun->lun_lock); 1231 ctl_est_ua_all(lun, -1, CTL_UA_INQ_CHANGE); 1232 mtx_unlock(&lun->lun_lock); 1233 } 1234 mtx_unlock(&softc->ctl_lock); 1235 } 1236 1237 static void 1238 ctl_isc_iid_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1239 { 1240 struct ctl_port *port; 1241 int iid; 1242 1243 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 1244 if (port == NULL) { 1245 printf("%s: Received IID for unknown port %d\n", 1246 __func__, msg->hdr.nexus.targ_port); 1247 return; 1248 } 1249 iid = msg->hdr.nexus.initid; 1250 port->wwpn_iid[iid].in_use = msg->iid.in_use; 1251 port->wwpn_iid[iid].wwpn = msg->iid.wwpn; 1252 free(port->wwpn_iid[iid].name, M_CTL); 1253 if (msg->iid.name_len) { 1254 port->wwpn_iid[iid].name = strndup(&msg->iid.data[0], 1255 msg->iid.name_len, M_CTL); 1256 } else 1257 port->wwpn_iid[iid].name = NULL; 1258 } 1259 1260 static void 1261 ctl_isc_login(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1262 { 1263 1264 if (msg->login.version != CTL_HA_VERSION) { 1265 printf("CTL HA peers have different versions %d != %d\n", 1266 msg->login.version, CTL_HA_VERSION); 1267 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1268 return; 1269 } 1270 if (msg->login.ha_mode != softc->ha_mode) { 1271 printf("CTL HA peers have different ha_mode %d != %d\n", 1272 msg->login.ha_mode, softc->ha_mode); 1273 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1274 return; 1275 } 1276 if (msg->login.ha_id == softc->ha_id) { 1277 printf("CTL HA peers have same ha_id %d\n", msg->login.ha_id); 1278 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1279 return; 1280 } 1281 if (msg->login.max_luns != CTL_MAX_LUNS || 1282 msg->login.max_ports != CTL_MAX_PORTS || 1283 msg->login.max_init_per_port != CTL_MAX_INIT_PER_PORT) { 1284 printf("CTL HA peers have different limits\n"); 1285 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1286 return; 1287 } 1288 } 1289 1290 static void 1291 ctl_isc_mode_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1292 { 1293 struct ctl_lun *lun; 1294 u_int i; 1295 uint32_t initidx, targ_lun; 1296 1297 targ_lun = msg->hdr.nexus.targ_mapped_lun; 1298 mtx_lock(&softc->ctl_lock); 1299 if (targ_lun >= CTL_MAX_LUNS || 1300 (lun = softc->ctl_luns[targ_lun]) == NULL) { 1301 mtx_unlock(&softc->ctl_lock); 1302 return; 1303 } 1304 mtx_lock(&lun->lun_lock); 1305 mtx_unlock(&softc->ctl_lock); 1306 if (lun->flags & CTL_LUN_DISABLED) { 1307 mtx_unlock(&lun->lun_lock); 1308 return; 1309 } 1310 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 1311 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) == 1312 msg->mode.page_code && 1313 lun->mode_pages.index[i].subpage == msg->mode.subpage) 1314 break; 1315 } 1316 if (i == CTL_NUM_MODE_PAGES) { 1317 mtx_unlock(&lun->lun_lock); 1318 return; 1319 } 1320 memcpy(lun->mode_pages.index[i].page_data, msg->mode.data, 1321 lun->mode_pages.index[i].page_len); 1322 initidx = ctl_get_initindex(&msg->hdr.nexus); 1323 if (initidx != -1) 1324 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 1325 mtx_unlock(&lun->lun_lock); 1326 } 1327 1328 /* 1329 * ISC (Inter Shelf Communication) event handler. Events from the HA 1330 * subsystem come in here. 1331 */ 1332 static void 1333 ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 1334 { 1335 struct ctl_softc *softc = control_softc; 1336 union ctl_io *io; 1337 struct ctl_prio *presio; 1338 ctl_ha_status isc_status; 1339 1340 CTL_DEBUG_PRINT(("CTL: Isc Msg event %d\n", event)); 1341 if (event == CTL_HA_EVT_MSG_RECV) { 1342 union ctl_ha_msg *msg, msgbuf; 1343 1344 if (param > sizeof(msgbuf)) 1345 msg = malloc(param, M_CTL, M_WAITOK); 1346 else 1347 msg = &msgbuf; 1348 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, msg, param, 1349 M_WAITOK); 1350 if (isc_status != CTL_HA_STATUS_SUCCESS) { 1351 printf("%s: Error receiving message: %d\n", 1352 __func__, isc_status); 1353 if (msg != &msgbuf) 1354 free(msg, M_CTL); 1355 return; 1356 } 1357 1358 CTL_DEBUG_PRINT(("CTL: msg_type %d\n", msg->msg_type)); 1359 switch (msg->hdr.msg_type) { 1360 case CTL_MSG_SERIALIZE: 1361 io = ctl_alloc_io(softc->othersc_pool); 1362 ctl_zero_io(io); 1363 // populate ctsio from msg 1364 io->io_hdr.io_type = CTL_IO_SCSI; 1365 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 1366 io->io_hdr.original_sc = msg->hdr.original_sc; 1367 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 1368 CTL_FLAG_IO_ACTIVE; 1369 /* 1370 * If we're in serialization-only mode, we don't 1371 * want to go through full done processing. Thus 1372 * the COPY flag. 1373 * 1374 * XXX KDM add another flag that is more specific. 1375 */ 1376 if (softc->ha_mode != CTL_HA_MODE_XFER) 1377 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 1378 io->io_hdr.nexus = msg->hdr.nexus; 1379 #if 0 1380 printf("port %u, iid %u, lun %u\n", 1381 io->io_hdr.nexus.targ_port, 1382 io->io_hdr.nexus.initid, 1383 io->io_hdr.nexus.targ_lun); 1384 #endif 1385 io->scsiio.tag_num = msg->scsi.tag_num; 1386 io->scsiio.tag_type = msg->scsi.tag_type; 1387 #ifdef CTL_TIME_IO 1388 io->io_hdr.start_time = time_uptime; 1389 getbinuptime(&io->io_hdr.start_bt); 1390 #endif /* CTL_TIME_IO */ 1391 io->scsiio.cdb_len = msg->scsi.cdb_len; 1392 memcpy(io->scsiio.cdb, msg->scsi.cdb, 1393 CTL_MAX_CDBLEN); 1394 if (softc->ha_mode == CTL_HA_MODE_XFER) { 1395 const struct ctl_cmd_entry *entry; 1396 1397 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 1398 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 1399 io->io_hdr.flags |= 1400 entry->flags & CTL_FLAG_DATA_MASK; 1401 } 1402 ctl_enqueue_isc(io); 1403 break; 1404 1405 /* Performed on the Originating SC, XFER mode only */ 1406 case CTL_MSG_DATAMOVE: { 1407 struct ctl_sg_entry *sgl; 1408 int i, j; 1409 1410 io = msg->hdr.original_sc; 1411 if (io == NULL) { 1412 printf("%s: original_sc == NULL!\n", __func__); 1413 /* XXX KDM do something here */ 1414 break; 1415 } 1416 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 1417 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1418 /* 1419 * Keep track of this, we need to send it back over 1420 * when the datamove is complete. 1421 */ 1422 io->io_hdr.serializing_sc = msg->hdr.serializing_sc; 1423 if (msg->hdr.status == CTL_SUCCESS) 1424 io->io_hdr.status = msg->hdr.status; 1425 1426 if (msg->dt.sg_sequence == 0) { 1427 #ifdef CTL_TIME_IO 1428 getbinuptime(&io->io_hdr.dma_start_bt); 1429 #endif 1430 i = msg->dt.kern_sg_entries + 1431 msg->dt.kern_data_len / 1432 CTL_HA_DATAMOVE_SEGMENT + 1; 1433 sgl = malloc(sizeof(*sgl) * i, M_CTL, 1434 M_WAITOK | M_ZERO); 1435 io->io_hdr.remote_sglist = sgl; 1436 io->io_hdr.local_sglist = 1437 &sgl[msg->dt.kern_sg_entries]; 1438 1439 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 1440 1441 io->scsiio.kern_sg_entries = 1442 msg->dt.kern_sg_entries; 1443 io->scsiio.rem_sg_entries = 1444 msg->dt.kern_sg_entries; 1445 io->scsiio.kern_data_len = 1446 msg->dt.kern_data_len; 1447 io->scsiio.kern_total_len = 1448 msg->dt.kern_total_len; 1449 io->scsiio.kern_data_resid = 1450 msg->dt.kern_data_resid; 1451 io->scsiio.kern_rel_offset = 1452 msg->dt.kern_rel_offset; 1453 io->io_hdr.flags &= ~CTL_FLAG_BUS_ADDR; 1454 io->io_hdr.flags |= msg->dt.flags & 1455 CTL_FLAG_BUS_ADDR; 1456 } else 1457 sgl = (struct ctl_sg_entry *) 1458 io->scsiio.kern_data_ptr; 1459 1460 for (i = msg->dt.sent_sg_entries, j = 0; 1461 i < (msg->dt.sent_sg_entries + 1462 msg->dt.cur_sg_entries); i++, j++) { 1463 sgl[i].addr = msg->dt.sg_list[j].addr; 1464 sgl[i].len = msg->dt.sg_list[j].len; 1465 1466 #if 0 1467 printf("%s: DATAMOVE: %p,%lu j=%d, i=%d\n", 1468 __func__, sgl[i].addr, sgl[i].len, j, i); 1469 #endif 1470 } 1471 1472 /* 1473 * If this is the last piece of the I/O, we've got 1474 * the full S/G list. Queue processing in the thread. 1475 * Otherwise wait for the next piece. 1476 */ 1477 if (msg->dt.sg_last != 0) 1478 ctl_enqueue_isc(io); 1479 break; 1480 } 1481 /* Performed on the Serializing (primary) SC, XFER mode only */ 1482 case CTL_MSG_DATAMOVE_DONE: { 1483 if (msg->hdr.serializing_sc == NULL) { 1484 printf("%s: serializing_sc == NULL!\n", 1485 __func__); 1486 /* XXX KDM now what? */ 1487 break; 1488 } 1489 /* 1490 * We grab the sense information here in case 1491 * there was a failure, so we can return status 1492 * back to the initiator. 1493 */ 1494 io = msg->hdr.serializing_sc; 1495 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 1496 io->io_hdr.flags &= ~CTL_FLAG_DMA_INPROG; 1497 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1498 io->io_hdr.port_status = msg->scsi.fetd_status; 1499 io->scsiio.residual = msg->scsi.residual; 1500 if (msg->hdr.status != CTL_STATUS_NONE) { 1501 io->io_hdr.status = msg->hdr.status; 1502 io->scsiio.scsi_status = msg->scsi.scsi_status; 1503 io->scsiio.sense_len = msg->scsi.sense_len; 1504 io->scsiio.sense_residual =msg->scsi.sense_residual; 1505 memcpy(&io->scsiio.sense_data, 1506 &msg->scsi.sense_data, 1507 msg->scsi.sense_len); 1508 if (msg->hdr.status == CTL_SUCCESS) 1509 io->io_hdr.flags |= CTL_FLAG_STATUS_SENT; 1510 } 1511 ctl_enqueue_isc(io); 1512 break; 1513 } 1514 1515 /* Preformed on Originating SC, SER_ONLY mode */ 1516 case CTL_MSG_R2R: 1517 io = msg->hdr.original_sc; 1518 if (io == NULL) { 1519 printf("%s: original_sc == NULL!\n", 1520 __func__); 1521 break; 1522 } 1523 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1524 io->io_hdr.msg_type = CTL_MSG_R2R; 1525 io->io_hdr.serializing_sc = msg->hdr.serializing_sc; 1526 ctl_enqueue_isc(io); 1527 break; 1528 1529 /* 1530 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 1531 * mode. 1532 * Performed on the Originating (i.e. secondary) SC in XFER 1533 * mode 1534 */ 1535 case CTL_MSG_FINISH_IO: 1536 if (softc->ha_mode == CTL_HA_MODE_XFER) 1537 ctl_isc_handler_finish_xfer(softc, msg); 1538 else 1539 ctl_isc_handler_finish_ser_only(softc, msg); 1540 break; 1541 1542 /* Preformed on Originating SC */ 1543 case CTL_MSG_BAD_JUJU: 1544 io = msg->hdr.original_sc; 1545 if (io == NULL) { 1546 printf("%s: Bad JUJU!, original_sc is NULL!\n", 1547 __func__); 1548 break; 1549 } 1550 ctl_copy_sense_data(msg, io); 1551 /* 1552 * IO should have already been cleaned up on other 1553 * SC so clear this flag so we won't send a message 1554 * back to finish the IO there. 1555 */ 1556 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 1557 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1558 1559 /* io = msg->hdr.serializing_sc; */ 1560 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 1561 ctl_enqueue_isc(io); 1562 break; 1563 1564 /* Handle resets sent from the other side */ 1565 case CTL_MSG_MANAGE_TASKS: { 1566 struct ctl_taskio *taskio; 1567 taskio = (struct ctl_taskio *)ctl_alloc_io( 1568 softc->othersc_pool); 1569 ctl_zero_io((union ctl_io *)taskio); 1570 taskio->io_hdr.io_type = CTL_IO_TASK; 1571 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1572 taskio->io_hdr.nexus = msg->hdr.nexus; 1573 taskio->task_action = msg->task.task_action; 1574 taskio->tag_num = msg->task.tag_num; 1575 taskio->tag_type = msg->task.tag_type; 1576 #ifdef CTL_TIME_IO 1577 taskio->io_hdr.start_time = time_uptime; 1578 getbinuptime(&taskio->io_hdr.start_bt); 1579 #endif /* CTL_TIME_IO */ 1580 ctl_run_task((union ctl_io *)taskio); 1581 break; 1582 } 1583 /* Persistent Reserve action which needs attention */ 1584 case CTL_MSG_PERS_ACTION: 1585 presio = (struct ctl_prio *)ctl_alloc_io( 1586 softc->othersc_pool); 1587 ctl_zero_io((union ctl_io *)presio); 1588 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 1589 presio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1590 presio->io_hdr.nexus = msg->hdr.nexus; 1591 presio->pr_msg = msg->pr; 1592 ctl_enqueue_isc((union ctl_io *)presio); 1593 break; 1594 case CTL_MSG_UA: 1595 ctl_isc_ua(softc, msg, param); 1596 break; 1597 case CTL_MSG_PORT_SYNC: 1598 ctl_isc_port_sync(softc, msg, param); 1599 break; 1600 case CTL_MSG_LUN_SYNC: 1601 ctl_isc_lun_sync(softc, msg, param); 1602 break; 1603 case CTL_MSG_IID_SYNC: 1604 ctl_isc_iid_sync(softc, msg, param); 1605 break; 1606 case CTL_MSG_LOGIN: 1607 ctl_isc_login(softc, msg, param); 1608 break; 1609 case CTL_MSG_MODE_SYNC: 1610 ctl_isc_mode_sync(softc, msg, param); 1611 break; 1612 default: 1613 printf("Received HA message of unknown type %d\n", 1614 msg->hdr.msg_type); 1615 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1616 break; 1617 } 1618 if (msg != &msgbuf) 1619 free(msg, M_CTL); 1620 } else if (event == CTL_HA_EVT_LINK_CHANGE) { 1621 printf("CTL: HA link status changed from %d to %d\n", 1622 softc->ha_link, param); 1623 if (param == softc->ha_link) 1624 return; 1625 if (softc->ha_link == CTL_HA_LINK_ONLINE) { 1626 softc->ha_link = param; 1627 ctl_isc_ha_link_down(softc); 1628 } else { 1629 softc->ha_link = param; 1630 if (softc->ha_link == CTL_HA_LINK_ONLINE) 1631 ctl_isc_ha_link_up(softc); 1632 } 1633 return; 1634 } else { 1635 printf("ctl_isc_event_handler: Unknown event %d\n", event); 1636 return; 1637 } 1638 } 1639 1640 static void 1641 ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 1642 { 1643 1644 memcpy(&dest->scsiio.sense_data, &src->scsi.sense_data, 1645 src->scsi.sense_len); 1646 dest->scsiio.scsi_status = src->scsi.scsi_status; 1647 dest->scsiio.sense_len = src->scsi.sense_len; 1648 dest->io_hdr.status = src->hdr.status; 1649 } 1650 1651 static void 1652 ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest) 1653 { 1654 1655 memcpy(&dest->scsi.sense_data, &src->scsiio.sense_data, 1656 src->scsiio.sense_len); 1657 dest->scsi.scsi_status = src->scsiio.scsi_status; 1658 dest->scsi.sense_len = src->scsiio.sense_len; 1659 dest->hdr.status = src->io_hdr.status; 1660 } 1661 1662 void 1663 ctl_est_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1664 { 1665 struct ctl_softc *softc = lun->ctl_softc; 1666 ctl_ua_type *pu; 1667 1668 if (initidx < softc->init_min || initidx >= softc->init_max) 1669 return; 1670 mtx_assert(&lun->lun_lock, MA_OWNED); 1671 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1672 if (pu == NULL) 1673 return; 1674 pu[initidx % CTL_MAX_INIT_PER_PORT] |= ua; 1675 } 1676 1677 void 1678 ctl_est_ua_port(struct ctl_lun *lun, int port, uint32_t except, ctl_ua_type ua) 1679 { 1680 int i; 1681 1682 mtx_assert(&lun->lun_lock, MA_OWNED); 1683 if (lun->pending_ua[port] == NULL) 1684 return; 1685 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1686 if (port * CTL_MAX_INIT_PER_PORT + i == except) 1687 continue; 1688 lun->pending_ua[port][i] |= ua; 1689 } 1690 } 1691 1692 void 1693 ctl_est_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1694 { 1695 struct ctl_softc *softc = lun->ctl_softc; 1696 int i; 1697 1698 mtx_assert(&lun->lun_lock, MA_OWNED); 1699 for (i = softc->port_min; i < softc->port_max; i++) 1700 ctl_est_ua_port(lun, i, except, ua); 1701 } 1702 1703 void 1704 ctl_clr_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1705 { 1706 struct ctl_softc *softc = lun->ctl_softc; 1707 ctl_ua_type *pu; 1708 1709 if (initidx < softc->init_min || initidx >= softc->init_max) 1710 return; 1711 mtx_assert(&lun->lun_lock, MA_OWNED); 1712 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1713 if (pu == NULL) 1714 return; 1715 pu[initidx % CTL_MAX_INIT_PER_PORT] &= ~ua; 1716 } 1717 1718 void 1719 ctl_clr_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1720 { 1721 struct ctl_softc *softc = lun->ctl_softc; 1722 int i, j; 1723 1724 mtx_assert(&lun->lun_lock, MA_OWNED); 1725 for (i = softc->port_min; i < softc->port_max; i++) { 1726 if (lun->pending_ua[i] == NULL) 1727 continue; 1728 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 1729 if (i * CTL_MAX_INIT_PER_PORT + j == except) 1730 continue; 1731 lun->pending_ua[i][j] &= ~ua; 1732 } 1733 } 1734 } 1735 1736 void 1737 ctl_clr_ua_allluns(struct ctl_softc *ctl_softc, uint32_t initidx, 1738 ctl_ua_type ua_type) 1739 { 1740 struct ctl_lun *lun; 1741 1742 mtx_assert(&ctl_softc->ctl_lock, MA_OWNED); 1743 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) { 1744 mtx_lock(&lun->lun_lock); 1745 ctl_clr_ua(lun, initidx, ua_type); 1746 mtx_unlock(&lun->lun_lock); 1747 } 1748 } 1749 1750 static int 1751 ctl_ha_role_sysctl(SYSCTL_HANDLER_ARGS) 1752 { 1753 struct ctl_softc *softc = (struct ctl_softc *)arg1; 1754 struct ctl_lun *lun; 1755 struct ctl_lun_req ireq; 1756 int error, value; 1757 1758 value = (softc->flags & CTL_FLAG_ACTIVE_SHELF) ? 0 : 1; 1759 error = sysctl_handle_int(oidp, &value, 0, req); 1760 if ((error != 0) || (req->newptr == NULL)) 1761 return (error); 1762 1763 mtx_lock(&softc->ctl_lock); 1764 if (value == 0) 1765 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1766 else 1767 softc->flags &= ~CTL_FLAG_ACTIVE_SHELF; 1768 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1769 mtx_unlock(&softc->ctl_lock); 1770 bzero(&ireq, sizeof(ireq)); 1771 ireq.reqtype = CTL_LUNREQ_MODIFY; 1772 ireq.reqdata.modify.lun_id = lun->lun; 1773 lun->backend->ioctl(NULL, CTL_LUN_REQ, (caddr_t)&ireq, 0, 1774 curthread); 1775 if (ireq.status != CTL_LUN_OK) { 1776 printf("%s: CTL_LUNREQ_MODIFY returned %d '%s'\n", 1777 __func__, ireq.status, ireq.error_str); 1778 } 1779 mtx_lock(&softc->ctl_lock); 1780 } 1781 mtx_unlock(&softc->ctl_lock); 1782 return (0); 1783 } 1784 1785 static int 1786 ctl_init(void) 1787 { 1788 struct make_dev_args args; 1789 struct ctl_softc *softc; 1790 void *other_pool; 1791 int i, error; 1792 1793 softc = control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 1794 M_WAITOK | M_ZERO); 1795 1796 make_dev_args_init(&args); 1797 args.mda_devsw = &ctl_cdevsw; 1798 args.mda_uid = UID_ROOT; 1799 args.mda_gid = GID_OPERATOR; 1800 args.mda_mode = 0600; 1801 args.mda_si_drv1 = softc; 1802 error = make_dev_s(&args, &softc->dev, "cam/ctl"); 1803 if (error != 0) { 1804 free(softc, M_DEVBUF); 1805 control_softc = NULL; 1806 return (error); 1807 } 1808 1809 sysctl_ctx_init(&softc->sysctl_ctx); 1810 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1811 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 1812 CTLFLAG_RD, 0, "CAM Target Layer"); 1813 1814 if (softc->sysctl_tree == NULL) { 1815 printf("%s: unable to allocate sysctl tree\n", __func__); 1816 destroy_dev(softc->dev); 1817 free(softc, M_DEVBUF); 1818 control_softc = NULL; 1819 return (ENOMEM); 1820 } 1821 1822 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 1823 softc->io_zone = uma_zcreate("CTL IO", sizeof(union ctl_io), 1824 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); 1825 softc->flags = 0; 1826 1827 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1828 OID_AUTO, "ha_mode", CTLFLAG_RDTUN, (int *)&softc->ha_mode, 0, 1829 "HA mode (0 - act/stby, 1 - serialize only, 2 - xfer)"); 1830 1831 /* 1832 * In Copan's HA scheme, the "master" and "slave" roles are 1833 * figured out through the slot the controller is in. Although it 1834 * is an active/active system, someone has to be in charge. 1835 */ 1836 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1837 OID_AUTO, "ha_id", CTLFLAG_RDTUN, &softc->ha_id, 0, 1838 "HA head ID (0 - no HA)"); 1839 if (softc->ha_id == 0 || softc->ha_id > NUM_HA_SHELVES) { 1840 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1841 softc->is_single = 1; 1842 softc->port_cnt = CTL_MAX_PORTS; 1843 softc->port_min = 0; 1844 } else { 1845 softc->port_cnt = CTL_MAX_PORTS / NUM_HA_SHELVES; 1846 softc->port_min = (softc->ha_id - 1) * softc->port_cnt; 1847 } 1848 softc->port_max = softc->port_min + softc->port_cnt; 1849 softc->init_min = softc->port_min * CTL_MAX_INIT_PER_PORT; 1850 softc->init_max = softc->port_max * CTL_MAX_INIT_PER_PORT; 1851 1852 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1853 OID_AUTO, "ha_link", CTLFLAG_RD, (int *)&softc->ha_link, 0, 1854 "HA link state (0 - offline, 1 - unknown, 2 - online)"); 1855 1856 STAILQ_INIT(&softc->lun_list); 1857 STAILQ_INIT(&softc->pending_lun_queue); 1858 STAILQ_INIT(&softc->fe_list); 1859 STAILQ_INIT(&softc->port_list); 1860 STAILQ_INIT(&softc->be_list); 1861 ctl_tpc_init(softc); 1862 1863 if (ctl_pool_create(softc, "othersc", CTL_POOL_ENTRIES_OTHER_SC, 1864 &other_pool) != 0) 1865 { 1866 printf("ctl: can't allocate %d entry other SC pool, " 1867 "exiting\n", CTL_POOL_ENTRIES_OTHER_SC); 1868 return (ENOMEM); 1869 } 1870 softc->othersc_pool = other_pool; 1871 1872 if (worker_threads <= 0) 1873 worker_threads = max(1, mp_ncpus / 4); 1874 if (worker_threads > CTL_MAX_THREADS) 1875 worker_threads = CTL_MAX_THREADS; 1876 1877 for (i = 0; i < worker_threads; i++) { 1878 struct ctl_thread *thr = &softc->threads[i]; 1879 1880 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1881 thr->ctl_softc = softc; 1882 STAILQ_INIT(&thr->incoming_queue); 1883 STAILQ_INIT(&thr->rtr_queue); 1884 STAILQ_INIT(&thr->done_queue); 1885 STAILQ_INIT(&thr->isc_queue); 1886 1887 error = kproc_kthread_add(ctl_work_thread, thr, 1888 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1889 if (error != 0) { 1890 printf("error creating CTL work thread!\n"); 1891 ctl_pool_free(other_pool); 1892 return (error); 1893 } 1894 } 1895 error = kproc_kthread_add(ctl_lun_thread, softc, 1896 &softc->ctl_proc, NULL, 0, 0, "ctl", "lun"); 1897 if (error != 0) { 1898 printf("error creating CTL lun thread!\n"); 1899 ctl_pool_free(other_pool); 1900 return (error); 1901 } 1902 error = kproc_kthread_add(ctl_thresh_thread, softc, 1903 &softc->ctl_proc, NULL, 0, 0, "ctl", "thresh"); 1904 if (error != 0) { 1905 printf("error creating CTL threshold thread!\n"); 1906 ctl_pool_free(other_pool); 1907 return (error); 1908 } 1909 1910 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1911 OID_AUTO, "ha_role", CTLTYPE_INT | CTLFLAG_RWTUN, 1912 softc, 0, ctl_ha_role_sysctl, "I", "HA role for this head"); 1913 1914 if (softc->is_single == 0) { 1915 ctl_frontend_register(&ha_frontend); 1916 if (ctl_ha_msg_init(softc) != CTL_HA_STATUS_SUCCESS) { 1917 printf("ctl_init: ctl_ha_msg_init failed.\n"); 1918 softc->is_single = 1; 1919 } else 1920 if (ctl_ha_msg_register(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 1921 != CTL_HA_STATUS_SUCCESS) { 1922 printf("ctl_init: ctl_ha_msg_register failed.\n"); 1923 softc->is_single = 1; 1924 } 1925 } 1926 return (0); 1927 } 1928 1929 void 1930 ctl_shutdown(void) 1931 { 1932 struct ctl_softc *softc = control_softc; 1933 struct ctl_lun *lun, *next_lun; 1934 1935 if (softc->is_single == 0) { 1936 ctl_ha_msg_shutdown(softc); 1937 if (ctl_ha_msg_deregister(CTL_HA_CHAN_CTL) 1938 != CTL_HA_STATUS_SUCCESS) 1939 printf("%s: ctl_ha_msg_deregister failed.\n", __func__); 1940 if (ctl_ha_msg_destroy(softc) != CTL_HA_STATUS_SUCCESS) 1941 printf("%s: ctl_ha_msg_destroy failed.\n", __func__); 1942 ctl_frontend_deregister(&ha_frontend); 1943 } 1944 1945 mtx_lock(&softc->ctl_lock); 1946 1947 STAILQ_FOREACH_SAFE(lun, &softc->lun_list, links, next_lun) 1948 ctl_free_lun(lun); 1949 1950 mtx_unlock(&softc->ctl_lock); 1951 1952 #if 0 1953 ctl_shutdown_thread(softc->work_thread); 1954 mtx_destroy(&softc->queue_lock); 1955 #endif 1956 1957 ctl_tpc_shutdown(softc); 1958 uma_zdestroy(softc->io_zone); 1959 mtx_destroy(&softc->ctl_lock); 1960 1961 destroy_dev(softc->dev); 1962 1963 sysctl_ctx_free(&softc->sysctl_ctx); 1964 1965 free(softc, M_DEVBUF); 1966 control_softc = NULL; 1967 } 1968 1969 static int 1970 ctl_module_event_handler(module_t mod, int what, void *arg) 1971 { 1972 1973 switch (what) { 1974 case MOD_LOAD: 1975 return (ctl_init()); 1976 case MOD_UNLOAD: 1977 return (EBUSY); 1978 default: 1979 return (EOPNOTSUPP); 1980 } 1981 } 1982 1983 /* 1984 * XXX KDM should we do some access checks here? Bump a reference count to 1985 * prevent a CTL module from being unloaded while someone has it open? 1986 */ 1987 static int 1988 ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 1989 { 1990 return (0); 1991 } 1992 1993 static int 1994 ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 1995 { 1996 return (0); 1997 } 1998 1999 /* 2000 * Remove an initiator by port number and initiator ID. 2001 * Returns 0 for success, -1 for failure. 2002 */ 2003 int 2004 ctl_remove_initiator(struct ctl_port *port, int iid) 2005 { 2006 struct ctl_softc *softc = port->ctl_softc; 2007 2008 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 2009 2010 if (iid > CTL_MAX_INIT_PER_PORT) { 2011 printf("%s: initiator ID %u > maximun %u!\n", 2012 __func__, iid, CTL_MAX_INIT_PER_PORT); 2013 return (-1); 2014 } 2015 2016 mtx_lock(&softc->ctl_lock); 2017 port->wwpn_iid[iid].in_use--; 2018 port->wwpn_iid[iid].last_use = time_uptime; 2019 mtx_unlock(&softc->ctl_lock); 2020 ctl_isc_announce_iid(port, iid); 2021 2022 return (0); 2023 } 2024 2025 /* 2026 * Add an initiator to the initiator map. 2027 * Returns iid for success, < 0 for failure. 2028 */ 2029 int 2030 ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 2031 { 2032 struct ctl_softc *softc = port->ctl_softc; 2033 time_t best_time; 2034 int i, best; 2035 2036 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 2037 2038 if (iid >= CTL_MAX_INIT_PER_PORT) { 2039 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 2040 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 2041 free(name, M_CTL); 2042 return (-1); 2043 } 2044 2045 mtx_lock(&softc->ctl_lock); 2046 2047 if (iid < 0 && (wwpn != 0 || name != NULL)) { 2048 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2049 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 2050 iid = i; 2051 break; 2052 } 2053 if (name != NULL && port->wwpn_iid[i].name != NULL && 2054 strcmp(name, port->wwpn_iid[i].name) == 0) { 2055 iid = i; 2056 break; 2057 } 2058 } 2059 } 2060 2061 if (iid < 0) { 2062 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2063 if (port->wwpn_iid[i].in_use == 0 && 2064 port->wwpn_iid[i].wwpn == 0 && 2065 port->wwpn_iid[i].name == NULL) { 2066 iid = i; 2067 break; 2068 } 2069 } 2070 } 2071 2072 if (iid < 0) { 2073 best = -1; 2074 best_time = INT32_MAX; 2075 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2076 if (port->wwpn_iid[i].in_use == 0) { 2077 if (port->wwpn_iid[i].last_use < best_time) { 2078 best = i; 2079 best_time = port->wwpn_iid[i].last_use; 2080 } 2081 } 2082 } 2083 iid = best; 2084 } 2085 2086 if (iid < 0) { 2087 mtx_unlock(&softc->ctl_lock); 2088 free(name, M_CTL); 2089 return (-2); 2090 } 2091 2092 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 2093 /* 2094 * This is not an error yet. 2095 */ 2096 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 2097 #if 0 2098 printf("%s: port %d iid %u WWPN %#jx arrived" 2099 " again\n", __func__, port->targ_port, 2100 iid, (uintmax_t)wwpn); 2101 #endif 2102 goto take; 2103 } 2104 if (name != NULL && port->wwpn_iid[iid].name != NULL && 2105 strcmp(name, port->wwpn_iid[iid].name) == 0) { 2106 #if 0 2107 printf("%s: port %d iid %u name '%s' arrived" 2108 " again\n", __func__, port->targ_port, 2109 iid, name); 2110 #endif 2111 goto take; 2112 } 2113 2114 /* 2115 * This is an error, but what do we do about it? The 2116 * driver is telling us we have a new WWPN for this 2117 * initiator ID, so we pretty much need to use it. 2118 */ 2119 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 2120 " but WWPN %#jx '%s' is still at that address\n", 2121 __func__, port->targ_port, iid, wwpn, name, 2122 (uintmax_t)port->wwpn_iid[iid].wwpn, 2123 port->wwpn_iid[iid].name); 2124 2125 /* 2126 * XXX KDM clear have_ca and ua_pending on each LUN for 2127 * this initiator. 2128 */ 2129 } 2130 take: 2131 free(port->wwpn_iid[iid].name, M_CTL); 2132 port->wwpn_iid[iid].name = name; 2133 port->wwpn_iid[iid].wwpn = wwpn; 2134 port->wwpn_iid[iid].in_use++; 2135 mtx_unlock(&softc->ctl_lock); 2136 ctl_isc_announce_iid(port, iid); 2137 2138 return (iid); 2139 } 2140 2141 static int 2142 ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 2143 { 2144 int len; 2145 2146 switch (port->port_type) { 2147 case CTL_PORT_FC: 2148 { 2149 struct scsi_transportid_fcp *id = 2150 (struct scsi_transportid_fcp *)buf; 2151 if (port->wwpn_iid[iid].wwpn == 0) 2152 return (0); 2153 memset(id, 0, sizeof(*id)); 2154 id->format_protocol = SCSI_PROTO_FC; 2155 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 2156 return (sizeof(*id)); 2157 } 2158 case CTL_PORT_ISCSI: 2159 { 2160 struct scsi_transportid_iscsi_port *id = 2161 (struct scsi_transportid_iscsi_port *)buf; 2162 if (port->wwpn_iid[iid].name == NULL) 2163 return (0); 2164 memset(id, 0, 256); 2165 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 2166 SCSI_PROTO_ISCSI; 2167 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 2168 len = roundup2(min(len, 252), 4); 2169 scsi_ulto2b(len, id->additional_length); 2170 return (sizeof(*id) + len); 2171 } 2172 case CTL_PORT_SAS: 2173 { 2174 struct scsi_transportid_sas *id = 2175 (struct scsi_transportid_sas *)buf; 2176 if (port->wwpn_iid[iid].wwpn == 0) 2177 return (0); 2178 memset(id, 0, sizeof(*id)); 2179 id->format_protocol = SCSI_PROTO_SAS; 2180 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 2181 return (sizeof(*id)); 2182 } 2183 default: 2184 { 2185 struct scsi_transportid_spi *id = 2186 (struct scsi_transportid_spi *)buf; 2187 memset(id, 0, sizeof(*id)); 2188 id->format_protocol = SCSI_PROTO_SPI; 2189 scsi_ulto2b(iid, id->scsi_addr); 2190 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 2191 return (sizeof(*id)); 2192 } 2193 } 2194 } 2195 2196 /* 2197 * Serialize a command that went down the "wrong" side, and so was sent to 2198 * this controller for execution. The logic is a little different than the 2199 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 2200 * sent back to the other side, but in the success case, we execute the 2201 * command on this side (XFER mode) or tell the other side to execute it 2202 * (SER_ONLY mode). 2203 */ 2204 static void 2205 ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 2206 { 2207 struct ctl_softc *softc = CTL_SOFTC(ctsio); 2208 struct ctl_port *port = CTL_PORT(ctsio); 2209 union ctl_ha_msg msg_info; 2210 struct ctl_lun *lun; 2211 const struct ctl_cmd_entry *entry; 2212 uint32_t targ_lun; 2213 2214 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 2215 2216 /* Make sure that we know about this port. */ 2217 if (port == NULL || (port->status & CTL_PORT_STATUS_ONLINE) == 0) { 2218 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 2219 /*retry_count*/ 1); 2220 goto badjuju; 2221 } 2222 2223 /* Make sure that we know about this LUN. */ 2224 mtx_lock(&softc->ctl_lock); 2225 if (targ_lun >= CTL_MAX_LUNS || 2226 (lun = softc->ctl_luns[targ_lun]) == NULL) { 2227 mtx_unlock(&softc->ctl_lock); 2228 2229 /* 2230 * The other node would not send this request to us unless 2231 * received announce that we are primary node for this LUN. 2232 * If this LUN does not exist now, it is probably result of 2233 * a race, so respond to initiator in the most opaque way. 2234 */ 2235 ctl_set_busy(ctsio); 2236 goto badjuju; 2237 } 2238 mtx_lock(&lun->lun_lock); 2239 mtx_unlock(&softc->ctl_lock); 2240 2241 /* 2242 * If the LUN is invalid, pretend that it doesn't exist. 2243 * It will go away as soon as all pending I/Os completed. 2244 */ 2245 if (lun->flags & CTL_LUN_DISABLED) { 2246 mtx_unlock(&lun->lun_lock); 2247 ctl_set_busy(ctsio); 2248 goto badjuju; 2249 } 2250 2251 entry = ctl_get_cmd_entry(ctsio, NULL); 2252 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 2253 mtx_unlock(&lun->lun_lock); 2254 goto badjuju; 2255 } 2256 2257 CTL_LUN(ctsio) = lun; 2258 CTL_BACKEND_LUN(ctsio) = lun->be_lun; 2259 2260 /* 2261 * Every I/O goes into the OOA queue for a 2262 * particular LUN, and stays there until completion. 2263 */ 2264 #ifdef CTL_TIME_IO 2265 if (TAILQ_EMPTY(&lun->ooa_queue)) 2266 lun->idle_time += getsbinuptime() - lun->last_busy; 2267 #endif 2268 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2269 2270 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 2271 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 2272 ooa_links))) { 2273 case CTL_ACTION_BLOCK: 2274 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 2275 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 2276 blocked_links); 2277 mtx_unlock(&lun->lun_lock); 2278 break; 2279 case CTL_ACTION_PASS: 2280 case CTL_ACTION_SKIP: 2281 if (softc->ha_mode == CTL_HA_MODE_XFER) { 2282 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 2283 ctl_enqueue_rtr((union ctl_io *)ctsio); 2284 mtx_unlock(&lun->lun_lock); 2285 } else { 2286 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 2287 mtx_unlock(&lun->lun_lock); 2288 2289 /* send msg back to other side */ 2290 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2291 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 2292 msg_info.hdr.msg_type = CTL_MSG_R2R; 2293 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2294 sizeof(msg_info.hdr), M_WAITOK); 2295 } 2296 break; 2297 case CTL_ACTION_OVERLAP: 2298 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2299 mtx_unlock(&lun->lun_lock); 2300 ctl_set_overlapped_cmd(ctsio); 2301 goto badjuju; 2302 case CTL_ACTION_OVERLAP_TAG: 2303 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2304 mtx_unlock(&lun->lun_lock); 2305 ctl_set_overlapped_tag(ctsio, ctsio->tag_num); 2306 goto badjuju; 2307 case CTL_ACTION_ERROR: 2308 default: 2309 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2310 mtx_unlock(&lun->lun_lock); 2311 2312 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 2313 /*retry_count*/ 0); 2314 badjuju: 2315 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 2316 msg_info.hdr.original_sc = ctsio->io_hdr.original_sc; 2317 msg_info.hdr.serializing_sc = NULL; 2318 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 2319 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2320 sizeof(msg_info.scsi), M_WAITOK); 2321 ctl_free_io((union ctl_io *)ctsio); 2322 break; 2323 } 2324 } 2325 2326 /* 2327 * Returns 0 for success, errno for failure. 2328 */ 2329 static void 2330 ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2331 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2332 { 2333 union ctl_io *io; 2334 2335 mtx_lock(&lun->lun_lock); 2336 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2337 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2338 ooa_links)) { 2339 struct ctl_ooa_entry *entry; 2340 2341 /* 2342 * If we've got more than we can fit, just count the 2343 * remaining entries. 2344 */ 2345 if (*cur_fill_num >= ooa_hdr->alloc_num) 2346 continue; 2347 2348 entry = &kern_entries[*cur_fill_num]; 2349 2350 entry->tag_num = io->scsiio.tag_num; 2351 entry->lun_num = lun->lun; 2352 #ifdef CTL_TIME_IO 2353 entry->start_bt = io->io_hdr.start_bt; 2354 #endif 2355 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2356 entry->cdb_len = io->scsiio.cdb_len; 2357 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2358 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2359 2360 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2361 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2362 2363 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2364 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2365 2366 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2367 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2368 2369 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2370 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2371 } 2372 mtx_unlock(&lun->lun_lock); 2373 } 2374 2375 static void * 2376 ctl_copyin_alloc(void *user_addr, unsigned int len, char *error_str, 2377 size_t error_str_len) 2378 { 2379 void *kptr; 2380 2381 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2382 2383 if (copyin(user_addr, kptr, len) != 0) { 2384 snprintf(error_str, error_str_len, "Error copying %d bytes " 2385 "from user address %p to kernel address %p", len, 2386 user_addr, kptr); 2387 free(kptr, M_CTL); 2388 return (NULL); 2389 } 2390 2391 return (kptr); 2392 } 2393 2394 static void 2395 ctl_free_args(int num_args, struct ctl_be_arg *args) 2396 { 2397 int i; 2398 2399 if (args == NULL) 2400 return; 2401 2402 for (i = 0; i < num_args; i++) { 2403 free(args[i].kname, M_CTL); 2404 free(args[i].kvalue, M_CTL); 2405 } 2406 2407 free(args, M_CTL); 2408 } 2409 2410 static struct ctl_be_arg * 2411 ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2412 char *error_str, size_t error_str_len) 2413 { 2414 struct ctl_be_arg *args; 2415 int i; 2416 2417 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2418 error_str, error_str_len); 2419 2420 if (args == NULL) 2421 goto bailout; 2422 2423 for (i = 0; i < num_args; i++) { 2424 args[i].kname = NULL; 2425 args[i].kvalue = NULL; 2426 } 2427 2428 for (i = 0; i < num_args; i++) { 2429 uint8_t *tmpptr; 2430 2431 if (args[i].namelen == 0) { 2432 snprintf(error_str, error_str_len, "Argument %d " 2433 "name length is zero", i); 2434 goto bailout; 2435 } 2436 2437 args[i].kname = ctl_copyin_alloc(args[i].name, 2438 args[i].namelen, error_str, error_str_len); 2439 if (args[i].kname == NULL) 2440 goto bailout; 2441 2442 if (args[i].kname[args[i].namelen - 1] != '\0') { 2443 snprintf(error_str, error_str_len, "Argument %d " 2444 "name is not NUL-terminated", i); 2445 goto bailout; 2446 } 2447 2448 if (args[i].flags & CTL_BEARG_RD) { 2449 if (args[i].vallen == 0) { 2450 snprintf(error_str, error_str_len, "Argument %d " 2451 "value length is zero", i); 2452 goto bailout; 2453 } 2454 2455 tmpptr = ctl_copyin_alloc(args[i].value, 2456 args[i].vallen, error_str, error_str_len); 2457 if (tmpptr == NULL) 2458 goto bailout; 2459 2460 if ((args[i].flags & CTL_BEARG_ASCII) 2461 && (tmpptr[args[i].vallen - 1] != '\0')) { 2462 snprintf(error_str, error_str_len, "Argument " 2463 "%d value is not NUL-terminated", i); 2464 free(tmpptr, M_CTL); 2465 goto bailout; 2466 } 2467 args[i].kvalue = tmpptr; 2468 } else { 2469 args[i].kvalue = malloc(args[i].vallen, 2470 M_CTL, M_WAITOK | M_ZERO); 2471 } 2472 } 2473 2474 return (args); 2475 bailout: 2476 2477 ctl_free_args(num_args, args); 2478 2479 return (NULL); 2480 } 2481 2482 static void 2483 ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2484 { 2485 int i; 2486 2487 for (i = 0; i < num_args; i++) { 2488 if (args[i].flags & CTL_BEARG_WR) 2489 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2490 } 2491 } 2492 2493 /* 2494 * Escape characters that are illegal or not recommended in XML. 2495 */ 2496 int 2497 ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size) 2498 { 2499 char *end = str + size; 2500 int retval; 2501 2502 retval = 0; 2503 2504 for (; *str && str < end; str++) { 2505 switch (*str) { 2506 case '&': 2507 retval = sbuf_printf(sb, "&"); 2508 break; 2509 case '>': 2510 retval = sbuf_printf(sb, ">"); 2511 break; 2512 case '<': 2513 retval = sbuf_printf(sb, "<"); 2514 break; 2515 default: 2516 retval = sbuf_putc(sb, *str); 2517 break; 2518 } 2519 2520 if (retval != 0) 2521 break; 2522 2523 } 2524 2525 return (retval); 2526 } 2527 2528 static void 2529 ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2530 { 2531 struct scsi_vpd_id_descriptor *desc; 2532 int i; 2533 2534 if (id == NULL || id->len < 4) 2535 return; 2536 desc = (struct scsi_vpd_id_descriptor *)id->data; 2537 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2538 case SVPD_ID_TYPE_T10: 2539 sbuf_printf(sb, "t10."); 2540 break; 2541 case SVPD_ID_TYPE_EUI64: 2542 sbuf_printf(sb, "eui."); 2543 break; 2544 case SVPD_ID_TYPE_NAA: 2545 sbuf_printf(sb, "naa."); 2546 break; 2547 case SVPD_ID_TYPE_SCSI_NAME: 2548 break; 2549 } 2550 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2551 case SVPD_ID_CODESET_BINARY: 2552 for (i = 0; i < desc->length; i++) 2553 sbuf_printf(sb, "%02x", desc->identifier[i]); 2554 break; 2555 case SVPD_ID_CODESET_ASCII: 2556 sbuf_printf(sb, "%.*s", (int)desc->length, 2557 (char *)desc->identifier); 2558 break; 2559 case SVPD_ID_CODESET_UTF8: 2560 sbuf_printf(sb, "%s", (char *)desc->identifier); 2561 break; 2562 } 2563 } 2564 2565 static int 2566 ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2567 struct thread *td) 2568 { 2569 struct ctl_softc *softc = dev->si_drv1; 2570 struct ctl_port *port; 2571 struct ctl_lun *lun; 2572 int retval; 2573 2574 retval = 0; 2575 2576 switch (cmd) { 2577 case CTL_IO: 2578 retval = ctl_ioctl_io(dev, cmd, addr, flag, td); 2579 break; 2580 case CTL_ENABLE_PORT: 2581 case CTL_DISABLE_PORT: 2582 case CTL_SET_PORT_WWNS: { 2583 struct ctl_port *port; 2584 struct ctl_port_entry *entry; 2585 2586 entry = (struct ctl_port_entry *)addr; 2587 2588 mtx_lock(&softc->ctl_lock); 2589 STAILQ_FOREACH(port, &softc->port_list, links) { 2590 int action, done; 2591 2592 if (port->targ_port < softc->port_min || 2593 port->targ_port >= softc->port_max) 2594 continue; 2595 2596 action = 0; 2597 done = 0; 2598 if ((entry->port_type == CTL_PORT_NONE) 2599 && (entry->targ_port == port->targ_port)) { 2600 /* 2601 * If the user only wants to enable or 2602 * disable or set WWNs on a specific port, 2603 * do the operation and we're done. 2604 */ 2605 action = 1; 2606 done = 1; 2607 } else if (entry->port_type & port->port_type) { 2608 /* 2609 * Compare the user's type mask with the 2610 * particular frontend type to see if we 2611 * have a match. 2612 */ 2613 action = 1; 2614 done = 0; 2615 2616 /* 2617 * Make sure the user isn't trying to set 2618 * WWNs on multiple ports at the same time. 2619 */ 2620 if (cmd == CTL_SET_PORT_WWNS) { 2621 printf("%s: Can't set WWNs on " 2622 "multiple ports\n", __func__); 2623 retval = EINVAL; 2624 break; 2625 } 2626 } 2627 if (action == 0) 2628 continue; 2629 2630 /* 2631 * XXX KDM we have to drop the lock here, because 2632 * the online/offline operations can potentially 2633 * block. We need to reference count the frontends 2634 * so they can't go away, 2635 */ 2636 if (cmd == CTL_ENABLE_PORT) { 2637 mtx_unlock(&softc->ctl_lock); 2638 ctl_port_online(port); 2639 mtx_lock(&softc->ctl_lock); 2640 } else if (cmd == CTL_DISABLE_PORT) { 2641 mtx_unlock(&softc->ctl_lock); 2642 ctl_port_offline(port); 2643 mtx_lock(&softc->ctl_lock); 2644 } else if (cmd == CTL_SET_PORT_WWNS) { 2645 ctl_port_set_wwns(port, 2646 (entry->flags & CTL_PORT_WWNN_VALID) ? 2647 1 : 0, entry->wwnn, 2648 (entry->flags & CTL_PORT_WWPN_VALID) ? 2649 1 : 0, entry->wwpn); 2650 } 2651 if (done != 0) 2652 break; 2653 } 2654 mtx_unlock(&softc->ctl_lock); 2655 break; 2656 } 2657 case CTL_GET_OOA: { 2658 struct ctl_ooa *ooa_hdr; 2659 struct ctl_ooa_entry *entries; 2660 uint32_t cur_fill_num; 2661 2662 ooa_hdr = (struct ctl_ooa *)addr; 2663 2664 if ((ooa_hdr->alloc_len == 0) 2665 || (ooa_hdr->alloc_num == 0)) { 2666 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2667 "must be non-zero\n", __func__, 2668 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2669 retval = EINVAL; 2670 break; 2671 } 2672 2673 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2674 sizeof(struct ctl_ooa_entry))) { 2675 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2676 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2677 __func__, ooa_hdr->alloc_len, 2678 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2679 retval = EINVAL; 2680 break; 2681 } 2682 2683 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2684 if (entries == NULL) { 2685 printf("%s: could not allocate %d bytes for OOA " 2686 "dump\n", __func__, ooa_hdr->alloc_len); 2687 retval = ENOMEM; 2688 break; 2689 } 2690 2691 mtx_lock(&softc->ctl_lock); 2692 if ((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0 && 2693 (ooa_hdr->lun_num >= CTL_MAX_LUNS || 2694 softc->ctl_luns[ooa_hdr->lun_num] == NULL)) { 2695 mtx_unlock(&softc->ctl_lock); 2696 free(entries, M_CTL); 2697 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2698 __func__, (uintmax_t)ooa_hdr->lun_num); 2699 retval = EINVAL; 2700 break; 2701 } 2702 2703 cur_fill_num = 0; 2704 2705 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2706 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2707 ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2708 ooa_hdr, entries); 2709 } 2710 } else { 2711 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2712 ctl_ioctl_fill_ooa(lun, &cur_fill_num, ooa_hdr, 2713 entries); 2714 } 2715 mtx_unlock(&softc->ctl_lock); 2716 2717 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2718 ooa_hdr->fill_len = ooa_hdr->fill_num * 2719 sizeof(struct ctl_ooa_entry); 2720 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2721 if (retval != 0) { 2722 printf("%s: error copying out %d bytes for OOA dump\n", 2723 __func__, ooa_hdr->fill_len); 2724 } 2725 2726 getbinuptime(&ooa_hdr->cur_bt); 2727 2728 if (cur_fill_num > ooa_hdr->alloc_num) { 2729 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2730 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2731 } else { 2732 ooa_hdr->dropped_num = 0; 2733 ooa_hdr->status = CTL_OOA_OK; 2734 } 2735 2736 free(entries, M_CTL); 2737 break; 2738 } 2739 case CTL_DELAY_IO: { 2740 struct ctl_io_delay_info *delay_info; 2741 2742 delay_info = (struct ctl_io_delay_info *)addr; 2743 2744 #ifdef CTL_IO_DELAY 2745 mtx_lock(&softc->ctl_lock); 2746 if (delay_info->lun_id >= CTL_MAX_LUNS || 2747 (lun = softc->ctl_luns[delay_info->lun_id]) == NULL) { 2748 mtx_unlock(&softc->ctl_lock); 2749 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2750 break; 2751 } 2752 mtx_lock(&lun->lun_lock); 2753 mtx_unlock(&softc->ctl_lock); 2754 delay_info->status = CTL_DELAY_STATUS_OK; 2755 switch (delay_info->delay_type) { 2756 case CTL_DELAY_TYPE_CONT: 2757 case CTL_DELAY_TYPE_ONESHOT: 2758 break; 2759 default: 2760 delay_info->status = CTL_DELAY_STATUS_INVALID_TYPE; 2761 break; 2762 } 2763 switch (delay_info->delay_loc) { 2764 case CTL_DELAY_LOC_DATAMOVE: 2765 lun->delay_info.datamove_type = delay_info->delay_type; 2766 lun->delay_info.datamove_delay = delay_info->delay_secs; 2767 break; 2768 case CTL_DELAY_LOC_DONE: 2769 lun->delay_info.done_type = delay_info->delay_type; 2770 lun->delay_info.done_delay = delay_info->delay_secs; 2771 break; 2772 default: 2773 delay_info->status = CTL_DELAY_STATUS_INVALID_LOC; 2774 break; 2775 } 2776 mtx_unlock(&lun->lun_lock); 2777 #else 2778 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2779 #endif /* CTL_IO_DELAY */ 2780 break; 2781 } 2782 #ifdef CTL_LEGACY_STATS 2783 case CTL_GETSTATS: { 2784 struct ctl_stats *stats = (struct ctl_stats *)addr; 2785 int i; 2786 2787 /* 2788 * XXX KDM no locking here. If the LUN list changes, 2789 * things can blow up. 2790 */ 2791 i = 0; 2792 stats->status = CTL_SS_OK; 2793 stats->fill_len = 0; 2794 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2795 if (stats->fill_len + sizeof(lun->legacy_stats) > 2796 stats->alloc_len) { 2797 stats->status = CTL_SS_NEED_MORE_SPACE; 2798 break; 2799 } 2800 retval = copyout(&lun->legacy_stats, &stats->lun_stats[i++], 2801 sizeof(lun->legacy_stats)); 2802 if (retval != 0) 2803 break; 2804 stats->fill_len += sizeof(lun->legacy_stats); 2805 } 2806 stats->num_luns = softc->num_luns; 2807 stats->flags = CTL_STATS_FLAG_NONE; 2808 #ifdef CTL_TIME_IO 2809 stats->flags |= CTL_STATS_FLAG_TIME_VALID; 2810 #endif 2811 getnanouptime(&stats->timestamp); 2812 break; 2813 } 2814 #endif /* CTL_LEGACY_STATS */ 2815 case CTL_ERROR_INJECT: { 2816 struct ctl_error_desc *err_desc, *new_err_desc; 2817 2818 err_desc = (struct ctl_error_desc *)addr; 2819 2820 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2821 M_WAITOK | M_ZERO); 2822 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2823 2824 mtx_lock(&softc->ctl_lock); 2825 if (err_desc->lun_id >= CTL_MAX_LUNS || 2826 (lun = softc->ctl_luns[err_desc->lun_id]) == NULL) { 2827 mtx_unlock(&softc->ctl_lock); 2828 free(new_err_desc, M_CTL); 2829 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2830 __func__, (uintmax_t)err_desc->lun_id); 2831 retval = EINVAL; 2832 break; 2833 } 2834 mtx_lock(&lun->lun_lock); 2835 mtx_unlock(&softc->ctl_lock); 2836 2837 /* 2838 * We could do some checking here to verify the validity 2839 * of the request, but given the complexity of error 2840 * injection requests, the checking logic would be fairly 2841 * complex. 2842 * 2843 * For now, if the request is invalid, it just won't get 2844 * executed and might get deleted. 2845 */ 2846 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2847 2848 /* 2849 * XXX KDM check to make sure the serial number is unique, 2850 * in case we somehow manage to wrap. That shouldn't 2851 * happen for a very long time, but it's the right thing to 2852 * do. 2853 */ 2854 new_err_desc->serial = lun->error_serial; 2855 err_desc->serial = lun->error_serial; 2856 lun->error_serial++; 2857 2858 mtx_unlock(&lun->lun_lock); 2859 break; 2860 } 2861 case CTL_ERROR_INJECT_DELETE: { 2862 struct ctl_error_desc *delete_desc, *desc, *desc2; 2863 int delete_done; 2864 2865 delete_desc = (struct ctl_error_desc *)addr; 2866 delete_done = 0; 2867 2868 mtx_lock(&softc->ctl_lock); 2869 if (delete_desc->lun_id >= CTL_MAX_LUNS || 2870 (lun = softc->ctl_luns[delete_desc->lun_id]) == NULL) { 2871 mtx_unlock(&softc->ctl_lock); 2872 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2873 __func__, (uintmax_t)delete_desc->lun_id); 2874 retval = EINVAL; 2875 break; 2876 } 2877 mtx_lock(&lun->lun_lock); 2878 mtx_unlock(&softc->ctl_lock); 2879 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2880 if (desc->serial != delete_desc->serial) 2881 continue; 2882 2883 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2884 links); 2885 free(desc, M_CTL); 2886 delete_done = 1; 2887 } 2888 mtx_unlock(&lun->lun_lock); 2889 if (delete_done == 0) { 2890 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2891 "error serial %ju on LUN %u\n", __func__, 2892 delete_desc->serial, delete_desc->lun_id); 2893 retval = EINVAL; 2894 break; 2895 } 2896 break; 2897 } 2898 case CTL_DUMP_STRUCTS: { 2899 int j, k; 2900 struct ctl_port *port; 2901 struct ctl_frontend *fe; 2902 2903 mtx_lock(&softc->ctl_lock); 2904 printf("CTL Persistent Reservation information start:\n"); 2905 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2906 mtx_lock(&lun->lun_lock); 2907 if ((lun->flags & CTL_LUN_DISABLED) != 0) { 2908 mtx_unlock(&lun->lun_lock); 2909 continue; 2910 } 2911 2912 for (j = 0; j < CTL_MAX_PORTS; j++) { 2913 if (lun->pr_keys[j] == NULL) 2914 continue; 2915 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2916 if (lun->pr_keys[j][k] == 0) 2917 continue; 2918 printf(" LUN %ju port %d iid %d key " 2919 "%#jx\n", lun->lun, j, k, 2920 (uintmax_t)lun->pr_keys[j][k]); 2921 } 2922 } 2923 mtx_unlock(&lun->lun_lock); 2924 } 2925 printf("CTL Persistent Reservation information end\n"); 2926 printf("CTL Ports:\n"); 2927 STAILQ_FOREACH(port, &softc->port_list, links) { 2928 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 2929 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 2930 port->frontend->name, port->port_type, 2931 port->physical_port, port->virtual_port, 2932 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 2933 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 2934 if (port->wwpn_iid[j].in_use == 0 && 2935 port->wwpn_iid[j].wwpn == 0 && 2936 port->wwpn_iid[j].name == NULL) 2937 continue; 2938 2939 printf(" iid %u use %d WWPN %#jx '%s'\n", 2940 j, port->wwpn_iid[j].in_use, 2941 (uintmax_t)port->wwpn_iid[j].wwpn, 2942 port->wwpn_iid[j].name); 2943 } 2944 } 2945 printf("CTL Port information end\n"); 2946 mtx_unlock(&softc->ctl_lock); 2947 /* 2948 * XXX KDM calling this without a lock. We'd likely want 2949 * to drop the lock before calling the frontend's dump 2950 * routine anyway. 2951 */ 2952 printf("CTL Frontends:\n"); 2953 STAILQ_FOREACH(fe, &softc->fe_list, links) { 2954 printf(" Frontend '%s'\n", fe->name); 2955 if (fe->fe_dump != NULL) 2956 fe->fe_dump(); 2957 } 2958 printf("CTL Frontend information end\n"); 2959 break; 2960 } 2961 case CTL_LUN_REQ: { 2962 struct ctl_lun_req *lun_req; 2963 struct ctl_backend_driver *backend; 2964 2965 lun_req = (struct ctl_lun_req *)addr; 2966 2967 backend = ctl_backend_find(lun_req->backend); 2968 if (backend == NULL) { 2969 lun_req->status = CTL_LUN_ERROR; 2970 snprintf(lun_req->error_str, 2971 sizeof(lun_req->error_str), 2972 "Backend \"%s\" not found.", 2973 lun_req->backend); 2974 break; 2975 } 2976 if (lun_req->num_be_args > 0) { 2977 lun_req->kern_be_args = ctl_copyin_args( 2978 lun_req->num_be_args, 2979 lun_req->be_args, 2980 lun_req->error_str, 2981 sizeof(lun_req->error_str)); 2982 if (lun_req->kern_be_args == NULL) { 2983 lun_req->status = CTL_LUN_ERROR; 2984 break; 2985 } 2986 } 2987 2988 retval = backend->ioctl(dev, cmd, addr, flag, td); 2989 2990 if (lun_req->num_be_args > 0) { 2991 ctl_copyout_args(lun_req->num_be_args, 2992 lun_req->kern_be_args); 2993 ctl_free_args(lun_req->num_be_args, 2994 lun_req->kern_be_args); 2995 } 2996 break; 2997 } 2998 case CTL_LUN_LIST: { 2999 struct sbuf *sb; 3000 struct ctl_lun_list *list; 3001 struct ctl_option *opt; 3002 3003 list = (struct ctl_lun_list *)addr; 3004 3005 /* 3006 * Allocate a fixed length sbuf here, based on the length 3007 * of the user's buffer. We could allocate an auto-extending 3008 * buffer, and then tell the user how much larger our 3009 * amount of data is than his buffer, but that presents 3010 * some problems: 3011 * 3012 * 1. The sbuf(9) routines use a blocking malloc, and so 3013 * we can't hold a lock while calling them with an 3014 * auto-extending buffer. 3015 * 3016 * 2. There is not currently a LUN reference counting 3017 * mechanism, outside of outstanding transactions on 3018 * the LUN's OOA queue. So a LUN could go away on us 3019 * while we're getting the LUN number, backend-specific 3020 * information, etc. Thus, given the way things 3021 * currently work, we need to hold the CTL lock while 3022 * grabbing LUN information. 3023 * 3024 * So, from the user's standpoint, the best thing to do is 3025 * allocate what he thinks is a reasonable buffer length, 3026 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3027 * double the buffer length and try again. (And repeat 3028 * that until he succeeds.) 3029 */ 3030 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3031 if (sb == NULL) { 3032 list->status = CTL_LUN_LIST_ERROR; 3033 snprintf(list->error_str, sizeof(list->error_str), 3034 "Unable to allocate %d bytes for LUN list", 3035 list->alloc_len); 3036 break; 3037 } 3038 3039 sbuf_printf(sb, "<ctllunlist>\n"); 3040 3041 mtx_lock(&softc->ctl_lock); 3042 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3043 mtx_lock(&lun->lun_lock); 3044 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3045 (uintmax_t)lun->lun); 3046 3047 /* 3048 * Bail out as soon as we see that we've overfilled 3049 * the buffer. 3050 */ 3051 if (retval != 0) 3052 break; 3053 3054 retval = sbuf_printf(sb, "\t<backend_type>%s" 3055 "</backend_type>\n", 3056 (lun->backend == NULL) ? "none" : 3057 lun->backend->name); 3058 3059 if (retval != 0) 3060 break; 3061 3062 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3063 lun->be_lun->lun_type); 3064 3065 if (retval != 0) 3066 break; 3067 3068 if (lun->backend == NULL) { 3069 retval = sbuf_printf(sb, "</lun>\n"); 3070 if (retval != 0) 3071 break; 3072 continue; 3073 } 3074 3075 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3076 (lun->be_lun->maxlba > 0) ? 3077 lun->be_lun->maxlba + 1 : 0); 3078 3079 if (retval != 0) 3080 break; 3081 3082 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3083 lun->be_lun->blocksize); 3084 3085 if (retval != 0) 3086 break; 3087 3088 retval = sbuf_printf(sb, "\t<serial_number>"); 3089 3090 if (retval != 0) 3091 break; 3092 3093 retval = ctl_sbuf_printf_esc(sb, 3094 lun->be_lun->serial_num, 3095 sizeof(lun->be_lun->serial_num)); 3096 3097 if (retval != 0) 3098 break; 3099 3100 retval = sbuf_printf(sb, "</serial_number>\n"); 3101 3102 if (retval != 0) 3103 break; 3104 3105 retval = sbuf_printf(sb, "\t<device_id>"); 3106 3107 if (retval != 0) 3108 break; 3109 3110 retval = ctl_sbuf_printf_esc(sb, 3111 lun->be_lun->device_id, 3112 sizeof(lun->be_lun->device_id)); 3113 3114 if (retval != 0) 3115 break; 3116 3117 retval = sbuf_printf(sb, "</device_id>\n"); 3118 3119 if (retval != 0) 3120 break; 3121 3122 if (lun->backend->lun_info != NULL) { 3123 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3124 if (retval != 0) 3125 break; 3126 } 3127 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3128 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3129 opt->name, opt->value, opt->name); 3130 if (retval != 0) 3131 break; 3132 } 3133 3134 retval = sbuf_printf(sb, "</lun>\n"); 3135 3136 if (retval != 0) 3137 break; 3138 mtx_unlock(&lun->lun_lock); 3139 } 3140 if (lun != NULL) 3141 mtx_unlock(&lun->lun_lock); 3142 mtx_unlock(&softc->ctl_lock); 3143 3144 if ((retval != 0) 3145 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3146 retval = 0; 3147 sbuf_delete(sb); 3148 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3149 snprintf(list->error_str, sizeof(list->error_str), 3150 "Out of space, %d bytes is too small", 3151 list->alloc_len); 3152 break; 3153 } 3154 3155 sbuf_finish(sb); 3156 3157 retval = copyout(sbuf_data(sb), list->lun_xml, 3158 sbuf_len(sb) + 1); 3159 3160 list->fill_len = sbuf_len(sb) + 1; 3161 list->status = CTL_LUN_LIST_OK; 3162 sbuf_delete(sb); 3163 break; 3164 } 3165 case CTL_ISCSI: { 3166 struct ctl_iscsi *ci; 3167 struct ctl_frontend *fe; 3168 3169 ci = (struct ctl_iscsi *)addr; 3170 3171 fe = ctl_frontend_find("iscsi"); 3172 if (fe == NULL) { 3173 ci->status = CTL_ISCSI_ERROR; 3174 snprintf(ci->error_str, sizeof(ci->error_str), 3175 "Frontend \"iscsi\" not found."); 3176 break; 3177 } 3178 3179 retval = fe->ioctl(dev, cmd, addr, flag, td); 3180 break; 3181 } 3182 case CTL_PORT_REQ: { 3183 struct ctl_req *req; 3184 struct ctl_frontend *fe; 3185 3186 req = (struct ctl_req *)addr; 3187 3188 fe = ctl_frontend_find(req->driver); 3189 if (fe == NULL) { 3190 req->status = CTL_LUN_ERROR; 3191 snprintf(req->error_str, sizeof(req->error_str), 3192 "Frontend \"%s\" not found.", req->driver); 3193 break; 3194 } 3195 if (req->num_args > 0) { 3196 req->kern_args = ctl_copyin_args(req->num_args, 3197 req->args, req->error_str, sizeof(req->error_str)); 3198 if (req->kern_args == NULL) { 3199 req->status = CTL_LUN_ERROR; 3200 break; 3201 } 3202 } 3203 3204 if (fe->ioctl) 3205 retval = fe->ioctl(dev, cmd, addr, flag, td); 3206 else 3207 retval = ENODEV; 3208 3209 if (req->num_args > 0) { 3210 ctl_copyout_args(req->num_args, req->kern_args); 3211 ctl_free_args(req->num_args, req->kern_args); 3212 } 3213 break; 3214 } 3215 case CTL_PORT_LIST: { 3216 struct sbuf *sb; 3217 struct ctl_port *port; 3218 struct ctl_lun_list *list; 3219 struct ctl_option *opt; 3220 int j; 3221 uint32_t plun; 3222 3223 list = (struct ctl_lun_list *)addr; 3224 3225 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3226 if (sb == NULL) { 3227 list->status = CTL_LUN_LIST_ERROR; 3228 snprintf(list->error_str, sizeof(list->error_str), 3229 "Unable to allocate %d bytes for LUN list", 3230 list->alloc_len); 3231 break; 3232 } 3233 3234 sbuf_printf(sb, "<ctlportlist>\n"); 3235 3236 mtx_lock(&softc->ctl_lock); 3237 STAILQ_FOREACH(port, &softc->port_list, links) { 3238 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3239 (uintmax_t)port->targ_port); 3240 3241 /* 3242 * Bail out as soon as we see that we've overfilled 3243 * the buffer. 3244 */ 3245 if (retval != 0) 3246 break; 3247 3248 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3249 "</frontend_type>\n", port->frontend->name); 3250 if (retval != 0) 3251 break; 3252 3253 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3254 port->port_type); 3255 if (retval != 0) 3256 break; 3257 3258 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3259 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3260 if (retval != 0) 3261 break; 3262 3263 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3264 port->port_name); 3265 if (retval != 0) 3266 break; 3267 3268 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3269 port->physical_port); 3270 if (retval != 0) 3271 break; 3272 3273 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3274 port->virtual_port); 3275 if (retval != 0) 3276 break; 3277 3278 if (port->target_devid != NULL) { 3279 sbuf_printf(sb, "\t<target>"); 3280 ctl_id_sbuf(port->target_devid, sb); 3281 sbuf_printf(sb, "</target>\n"); 3282 } 3283 3284 if (port->port_devid != NULL) { 3285 sbuf_printf(sb, "\t<port>"); 3286 ctl_id_sbuf(port->port_devid, sb); 3287 sbuf_printf(sb, "</port>\n"); 3288 } 3289 3290 if (port->port_info != NULL) { 3291 retval = port->port_info(port->onoff_arg, sb); 3292 if (retval != 0) 3293 break; 3294 } 3295 STAILQ_FOREACH(opt, &port->options, links) { 3296 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3297 opt->name, opt->value, opt->name); 3298 if (retval != 0) 3299 break; 3300 } 3301 3302 if (port->lun_map != NULL) { 3303 sbuf_printf(sb, "\t<lun_map>on</lun_map>\n"); 3304 for (j = 0; j < port->lun_map_size; j++) { 3305 plun = ctl_lun_map_from_port(port, j); 3306 if (plun == UINT32_MAX) 3307 continue; 3308 sbuf_printf(sb, 3309 "\t<lun id=\"%u\">%u</lun>\n", 3310 j, plun); 3311 } 3312 } 3313 3314 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3315 if (port->wwpn_iid[j].in_use == 0 || 3316 (port->wwpn_iid[j].wwpn == 0 && 3317 port->wwpn_iid[j].name == NULL)) 3318 continue; 3319 3320 if (port->wwpn_iid[j].name != NULL) 3321 retval = sbuf_printf(sb, 3322 "\t<initiator id=\"%u\">%s</initiator>\n", 3323 j, port->wwpn_iid[j].name); 3324 else 3325 retval = sbuf_printf(sb, 3326 "\t<initiator id=\"%u\">naa.%08jx</initiator>\n", 3327 j, port->wwpn_iid[j].wwpn); 3328 if (retval != 0) 3329 break; 3330 } 3331 if (retval != 0) 3332 break; 3333 3334 retval = sbuf_printf(sb, "</targ_port>\n"); 3335 if (retval != 0) 3336 break; 3337 } 3338 mtx_unlock(&softc->ctl_lock); 3339 3340 if ((retval != 0) 3341 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3342 retval = 0; 3343 sbuf_delete(sb); 3344 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3345 snprintf(list->error_str, sizeof(list->error_str), 3346 "Out of space, %d bytes is too small", 3347 list->alloc_len); 3348 break; 3349 } 3350 3351 sbuf_finish(sb); 3352 3353 retval = copyout(sbuf_data(sb), list->lun_xml, 3354 sbuf_len(sb) + 1); 3355 3356 list->fill_len = sbuf_len(sb) + 1; 3357 list->status = CTL_LUN_LIST_OK; 3358 sbuf_delete(sb); 3359 break; 3360 } 3361 case CTL_LUN_MAP: { 3362 struct ctl_lun_map *lm = (struct ctl_lun_map *)addr; 3363 struct ctl_port *port; 3364 3365 mtx_lock(&softc->ctl_lock); 3366 if (lm->port < softc->port_min || 3367 lm->port >= softc->port_max || 3368 (port = softc->ctl_ports[lm->port]) == NULL) { 3369 mtx_unlock(&softc->ctl_lock); 3370 return (ENXIO); 3371 } 3372 if (port->status & CTL_PORT_STATUS_ONLINE) { 3373 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3374 if (ctl_lun_map_to_port(port, lun->lun) == 3375 UINT32_MAX) 3376 continue; 3377 mtx_lock(&lun->lun_lock); 3378 ctl_est_ua_port(lun, lm->port, -1, 3379 CTL_UA_LUN_CHANGE); 3380 mtx_unlock(&lun->lun_lock); 3381 } 3382 } 3383 mtx_unlock(&softc->ctl_lock); // XXX: port_enable sleeps 3384 if (lm->plun != UINT32_MAX) { 3385 if (lm->lun == UINT32_MAX) 3386 retval = ctl_lun_map_unset(port, lm->plun); 3387 else if (lm->lun < CTL_MAX_LUNS && 3388 softc->ctl_luns[lm->lun] != NULL) 3389 retval = ctl_lun_map_set(port, lm->plun, lm->lun); 3390 else 3391 return (ENXIO); 3392 } else { 3393 if (lm->lun == UINT32_MAX) 3394 retval = ctl_lun_map_deinit(port); 3395 else 3396 retval = ctl_lun_map_init(port); 3397 } 3398 if (port->status & CTL_PORT_STATUS_ONLINE) 3399 ctl_isc_announce_port(port); 3400 break; 3401 } 3402 case CTL_GET_LUN_STATS: { 3403 struct ctl_get_io_stats *stats = (struct ctl_get_io_stats *)addr; 3404 int i; 3405 3406 /* 3407 * XXX KDM no locking here. If the LUN list changes, 3408 * things can blow up. 3409 */ 3410 i = 0; 3411 stats->status = CTL_SS_OK; 3412 stats->fill_len = 0; 3413 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3414 if (lun->lun < stats->first_item) 3415 continue; 3416 if (stats->fill_len + sizeof(lun->stats) > 3417 stats->alloc_len) { 3418 stats->status = CTL_SS_NEED_MORE_SPACE; 3419 break; 3420 } 3421 retval = copyout(&lun->stats, &stats->stats[i++], 3422 sizeof(lun->stats)); 3423 if (retval != 0) 3424 break; 3425 stats->fill_len += sizeof(lun->stats); 3426 } 3427 stats->num_items = softc->num_luns; 3428 stats->flags = CTL_STATS_FLAG_NONE; 3429 #ifdef CTL_TIME_IO 3430 stats->flags |= CTL_STATS_FLAG_TIME_VALID; 3431 #endif 3432 getnanouptime(&stats->timestamp); 3433 break; 3434 } 3435 case CTL_GET_PORT_STATS: { 3436 struct ctl_get_io_stats *stats = (struct ctl_get_io_stats *)addr; 3437 int i; 3438 3439 /* 3440 * XXX KDM no locking here. If the LUN list changes, 3441 * things can blow up. 3442 */ 3443 i = 0; 3444 stats->status = CTL_SS_OK; 3445 stats->fill_len = 0; 3446 STAILQ_FOREACH(port, &softc->port_list, links) { 3447 if (port->targ_port < stats->first_item) 3448 continue; 3449 if (stats->fill_len + sizeof(port->stats) > 3450 stats->alloc_len) { 3451 stats->status = CTL_SS_NEED_MORE_SPACE; 3452 break; 3453 } 3454 retval = copyout(&port->stats, &stats->stats[i++], 3455 sizeof(port->stats)); 3456 if (retval != 0) 3457 break; 3458 stats->fill_len += sizeof(port->stats); 3459 } 3460 stats->num_items = softc->num_ports; 3461 stats->flags = CTL_STATS_FLAG_NONE; 3462 #ifdef CTL_TIME_IO 3463 stats->flags |= CTL_STATS_FLAG_TIME_VALID; 3464 #endif 3465 getnanouptime(&stats->timestamp); 3466 break; 3467 } 3468 default: { 3469 /* XXX KDM should we fix this? */ 3470 #if 0 3471 struct ctl_backend_driver *backend; 3472 unsigned int type; 3473 int found; 3474 3475 found = 0; 3476 3477 /* 3478 * We encode the backend type as the ioctl type for backend 3479 * ioctls. So parse it out here, and then search for a 3480 * backend of this type. 3481 */ 3482 type = _IOC_TYPE(cmd); 3483 3484 STAILQ_FOREACH(backend, &softc->be_list, links) { 3485 if (backend->type == type) { 3486 found = 1; 3487 break; 3488 } 3489 } 3490 if (found == 0) { 3491 printf("ctl: unknown ioctl command %#lx or backend " 3492 "%d\n", cmd, type); 3493 retval = EINVAL; 3494 break; 3495 } 3496 retval = backend->ioctl(dev, cmd, addr, flag, td); 3497 #endif 3498 retval = ENOTTY; 3499 break; 3500 } 3501 } 3502 return (retval); 3503 } 3504 3505 uint32_t 3506 ctl_get_initindex(struct ctl_nexus *nexus) 3507 { 3508 return (nexus->initid + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3509 } 3510 3511 int 3512 ctl_lun_map_init(struct ctl_port *port) 3513 { 3514 struct ctl_softc *softc = port->ctl_softc; 3515 struct ctl_lun *lun; 3516 int size = ctl_lun_map_size; 3517 uint32_t i; 3518 3519 if (port->lun_map == NULL || port->lun_map_size < size) { 3520 port->lun_map_size = 0; 3521 free(port->lun_map, M_CTL); 3522 port->lun_map = malloc(size * sizeof(uint32_t), 3523 M_CTL, M_NOWAIT); 3524 } 3525 if (port->lun_map == NULL) 3526 return (ENOMEM); 3527 for (i = 0; i < size; i++) 3528 port->lun_map[i] = UINT32_MAX; 3529 port->lun_map_size = size; 3530 if (port->status & CTL_PORT_STATUS_ONLINE) { 3531 if (port->lun_disable != NULL) { 3532 STAILQ_FOREACH(lun, &softc->lun_list, links) 3533 port->lun_disable(port->targ_lun_arg, lun->lun); 3534 } 3535 ctl_isc_announce_port(port); 3536 } 3537 return (0); 3538 } 3539 3540 int 3541 ctl_lun_map_deinit(struct ctl_port *port) 3542 { 3543 struct ctl_softc *softc = port->ctl_softc; 3544 struct ctl_lun *lun; 3545 3546 if (port->lun_map == NULL) 3547 return (0); 3548 port->lun_map_size = 0; 3549 free(port->lun_map, M_CTL); 3550 port->lun_map = NULL; 3551 if (port->status & CTL_PORT_STATUS_ONLINE) { 3552 if (port->lun_enable != NULL) { 3553 STAILQ_FOREACH(lun, &softc->lun_list, links) 3554 port->lun_enable(port->targ_lun_arg, lun->lun); 3555 } 3556 ctl_isc_announce_port(port); 3557 } 3558 return (0); 3559 } 3560 3561 int 3562 ctl_lun_map_set(struct ctl_port *port, uint32_t plun, uint32_t glun) 3563 { 3564 int status; 3565 uint32_t old; 3566 3567 if (port->lun_map == NULL) { 3568 status = ctl_lun_map_init(port); 3569 if (status != 0) 3570 return (status); 3571 } 3572 if (plun >= port->lun_map_size) 3573 return (EINVAL); 3574 old = port->lun_map[plun]; 3575 port->lun_map[plun] = glun; 3576 if ((port->status & CTL_PORT_STATUS_ONLINE) && old == UINT32_MAX) { 3577 if (port->lun_enable != NULL) 3578 port->lun_enable(port->targ_lun_arg, plun); 3579 ctl_isc_announce_port(port); 3580 } 3581 return (0); 3582 } 3583 3584 int 3585 ctl_lun_map_unset(struct ctl_port *port, uint32_t plun) 3586 { 3587 uint32_t old; 3588 3589 if (port->lun_map == NULL || plun >= port->lun_map_size) 3590 return (0); 3591 old = port->lun_map[plun]; 3592 port->lun_map[plun] = UINT32_MAX; 3593 if ((port->status & CTL_PORT_STATUS_ONLINE) && old != UINT32_MAX) { 3594 if (port->lun_disable != NULL) 3595 port->lun_disable(port->targ_lun_arg, plun); 3596 ctl_isc_announce_port(port); 3597 } 3598 return (0); 3599 } 3600 3601 uint32_t 3602 ctl_lun_map_from_port(struct ctl_port *port, uint32_t lun_id) 3603 { 3604 3605 if (port == NULL) 3606 return (UINT32_MAX); 3607 if (port->lun_map == NULL) 3608 return (lun_id); 3609 if (lun_id > port->lun_map_size) 3610 return (UINT32_MAX); 3611 return (port->lun_map[lun_id]); 3612 } 3613 3614 uint32_t 3615 ctl_lun_map_to_port(struct ctl_port *port, uint32_t lun_id) 3616 { 3617 uint32_t i; 3618 3619 if (port == NULL) 3620 return (UINT32_MAX); 3621 if (port->lun_map == NULL) 3622 return (lun_id); 3623 for (i = 0; i < port->lun_map_size; i++) { 3624 if (port->lun_map[i] == lun_id) 3625 return (i); 3626 } 3627 return (UINT32_MAX); 3628 } 3629 3630 uint32_t 3631 ctl_decode_lun(uint64_t encoded) 3632 { 3633 uint8_t lun[8]; 3634 uint32_t result = 0xffffffff; 3635 3636 be64enc(lun, encoded); 3637 switch (lun[0] & RPL_LUNDATA_ATYP_MASK) { 3638 case RPL_LUNDATA_ATYP_PERIPH: 3639 if ((lun[0] & 0x3f) == 0 && lun[2] == 0 && lun[3] == 0 && 3640 lun[4] == 0 && lun[5] == 0 && lun[6] == 0 && lun[7] == 0) 3641 result = lun[1]; 3642 break; 3643 case RPL_LUNDATA_ATYP_FLAT: 3644 if (lun[2] == 0 && lun[3] == 0 && lun[4] == 0 && lun[5] == 0 && 3645 lun[6] == 0 && lun[7] == 0) 3646 result = ((lun[0] & 0x3f) << 8) + lun[1]; 3647 break; 3648 case RPL_LUNDATA_ATYP_EXTLUN: 3649 switch (lun[0] & RPL_LUNDATA_EXT_EAM_MASK) { 3650 case 0x02: 3651 switch (lun[0] & RPL_LUNDATA_EXT_LEN_MASK) { 3652 case 0x00: 3653 result = lun[1]; 3654 break; 3655 case 0x10: 3656 result = (lun[1] << 16) + (lun[2] << 8) + 3657 lun[3]; 3658 break; 3659 case 0x20: 3660 if (lun[1] == 0 && lun[6] == 0 && lun[7] == 0) 3661 result = (lun[2] << 24) + 3662 (lun[3] << 16) + (lun[4] << 8) + 3663 lun[5]; 3664 break; 3665 } 3666 break; 3667 case RPL_LUNDATA_EXT_EAM_NOT_SPEC: 3668 result = 0xffffffff; 3669 break; 3670 } 3671 break; 3672 } 3673 return (result); 3674 } 3675 3676 uint64_t 3677 ctl_encode_lun(uint32_t decoded) 3678 { 3679 uint64_t l = decoded; 3680 3681 if (l <= 0xff) 3682 return (((uint64_t)RPL_LUNDATA_ATYP_PERIPH << 56) | (l << 48)); 3683 if (l <= 0x3fff) 3684 return (((uint64_t)RPL_LUNDATA_ATYP_FLAT << 56) | (l << 48)); 3685 if (l <= 0xffffff) 3686 return (((uint64_t)(RPL_LUNDATA_ATYP_EXTLUN | 0x12) << 56) | 3687 (l << 32)); 3688 return ((((uint64_t)RPL_LUNDATA_ATYP_EXTLUN | 0x22) << 56) | (l << 16)); 3689 } 3690 3691 int 3692 ctl_ffz(uint32_t *mask, uint32_t first, uint32_t last) 3693 { 3694 int i; 3695 3696 for (i = first; i < last; i++) { 3697 if ((mask[i / 32] & (1 << (i % 32))) == 0) 3698 return (i); 3699 } 3700 return (-1); 3701 } 3702 3703 int 3704 ctl_set_mask(uint32_t *mask, uint32_t bit) 3705 { 3706 uint32_t chunk, piece; 3707 3708 chunk = bit >> 5; 3709 piece = bit % (sizeof(uint32_t) * 8); 3710 3711 if ((mask[chunk] & (1 << piece)) != 0) 3712 return (-1); 3713 else 3714 mask[chunk] |= (1 << piece); 3715 3716 return (0); 3717 } 3718 3719 int 3720 ctl_clear_mask(uint32_t *mask, uint32_t bit) 3721 { 3722 uint32_t chunk, piece; 3723 3724 chunk = bit >> 5; 3725 piece = bit % (sizeof(uint32_t) * 8); 3726 3727 if ((mask[chunk] & (1 << piece)) == 0) 3728 return (-1); 3729 else 3730 mask[chunk] &= ~(1 << piece); 3731 3732 return (0); 3733 } 3734 3735 int 3736 ctl_is_set(uint32_t *mask, uint32_t bit) 3737 { 3738 uint32_t chunk, piece; 3739 3740 chunk = bit >> 5; 3741 piece = bit % (sizeof(uint32_t) * 8); 3742 3743 if ((mask[chunk] & (1 << piece)) == 0) 3744 return (0); 3745 else 3746 return (1); 3747 } 3748 3749 static uint64_t 3750 ctl_get_prkey(struct ctl_lun *lun, uint32_t residx) 3751 { 3752 uint64_t *t; 3753 3754 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3755 if (t == NULL) 3756 return (0); 3757 return (t[residx % CTL_MAX_INIT_PER_PORT]); 3758 } 3759 3760 static void 3761 ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx) 3762 { 3763 uint64_t *t; 3764 3765 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3766 if (t == NULL) 3767 return; 3768 t[residx % CTL_MAX_INIT_PER_PORT] = 0; 3769 } 3770 3771 static void 3772 ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx) 3773 { 3774 uint64_t *p; 3775 u_int i; 3776 3777 i = residx/CTL_MAX_INIT_PER_PORT; 3778 if (lun->pr_keys[i] != NULL) 3779 return; 3780 mtx_unlock(&lun->lun_lock); 3781 p = malloc(sizeof(uint64_t) * CTL_MAX_INIT_PER_PORT, M_CTL, 3782 M_WAITOK | M_ZERO); 3783 mtx_lock(&lun->lun_lock); 3784 if (lun->pr_keys[i] == NULL) 3785 lun->pr_keys[i] = p; 3786 else 3787 free(p, M_CTL); 3788 } 3789 3790 static void 3791 ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key) 3792 { 3793 uint64_t *t; 3794 3795 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3796 KASSERT(t != NULL, ("prkey %d is not allocated", residx)); 3797 t[residx % CTL_MAX_INIT_PER_PORT] = key; 3798 } 3799 3800 /* 3801 * ctl_softc, pool_name, total_ctl_io are passed in. 3802 * npool is passed out. 3803 */ 3804 int 3805 ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name, 3806 uint32_t total_ctl_io, void **npool) 3807 { 3808 struct ctl_io_pool *pool; 3809 3810 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3811 M_NOWAIT | M_ZERO); 3812 if (pool == NULL) 3813 return (ENOMEM); 3814 3815 snprintf(pool->name, sizeof(pool->name), "CTL IO %s", pool_name); 3816 pool->ctl_softc = ctl_softc; 3817 #ifdef IO_POOLS 3818 pool->zone = uma_zsecond_create(pool->name, NULL, 3819 NULL, NULL, NULL, ctl_softc->io_zone); 3820 /* uma_prealloc(pool->zone, total_ctl_io); */ 3821 #else 3822 pool->zone = ctl_softc->io_zone; 3823 #endif 3824 3825 *npool = pool; 3826 return (0); 3827 } 3828 3829 void 3830 ctl_pool_free(struct ctl_io_pool *pool) 3831 { 3832 3833 if (pool == NULL) 3834 return; 3835 3836 #ifdef IO_POOLS 3837 uma_zdestroy(pool->zone); 3838 #endif 3839 free(pool, M_CTL); 3840 } 3841 3842 union ctl_io * 3843 ctl_alloc_io(void *pool_ref) 3844 { 3845 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3846 union ctl_io *io; 3847 3848 io = uma_zalloc(pool->zone, M_WAITOK); 3849 if (io != NULL) { 3850 io->io_hdr.pool = pool_ref; 3851 CTL_SOFTC(io) = pool->ctl_softc; 3852 } 3853 return (io); 3854 } 3855 3856 union ctl_io * 3857 ctl_alloc_io_nowait(void *pool_ref) 3858 { 3859 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3860 union ctl_io *io; 3861 3862 io = uma_zalloc(pool->zone, M_NOWAIT); 3863 if (io != NULL) { 3864 io->io_hdr.pool = pool_ref; 3865 CTL_SOFTC(io) = pool->ctl_softc; 3866 } 3867 return (io); 3868 } 3869 3870 void 3871 ctl_free_io(union ctl_io *io) 3872 { 3873 struct ctl_io_pool *pool; 3874 3875 if (io == NULL) 3876 return; 3877 3878 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3879 uma_zfree(pool->zone, io); 3880 } 3881 3882 void 3883 ctl_zero_io(union ctl_io *io) 3884 { 3885 struct ctl_io_pool *pool; 3886 3887 if (io == NULL) 3888 return; 3889 3890 /* 3891 * May need to preserve linked list pointers at some point too. 3892 */ 3893 pool = io->io_hdr.pool; 3894 memset(io, 0, sizeof(*io)); 3895 io->io_hdr.pool = pool; 3896 CTL_SOFTC(io) = pool->ctl_softc; 3897 } 3898 3899 int 3900 ctl_expand_number(const char *buf, uint64_t *num) 3901 { 3902 char *endptr; 3903 uint64_t number; 3904 unsigned shift; 3905 3906 number = strtoq(buf, &endptr, 0); 3907 3908 switch (tolower((unsigned char)*endptr)) { 3909 case 'e': 3910 shift = 60; 3911 break; 3912 case 'p': 3913 shift = 50; 3914 break; 3915 case 't': 3916 shift = 40; 3917 break; 3918 case 'g': 3919 shift = 30; 3920 break; 3921 case 'm': 3922 shift = 20; 3923 break; 3924 case 'k': 3925 shift = 10; 3926 break; 3927 case 'b': 3928 case '\0': /* No unit. */ 3929 *num = number; 3930 return (0); 3931 default: 3932 /* Unrecognized unit. */ 3933 return (-1); 3934 } 3935 3936 if ((number << shift) >> shift != number) { 3937 /* Overflow */ 3938 return (-1); 3939 } 3940 *num = number << shift; 3941 return (0); 3942 } 3943 3944 3945 /* 3946 * This routine could be used in the future to load default and/or saved 3947 * mode page parameters for a particuar lun. 3948 */ 3949 static int 3950 ctl_init_page_index(struct ctl_lun *lun) 3951 { 3952 int i, page_code; 3953 struct ctl_page_index *page_index; 3954 const char *value; 3955 uint64_t ival; 3956 3957 memcpy(&lun->mode_pages.index, page_index_template, 3958 sizeof(page_index_template)); 3959 3960 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 3961 3962 page_index = &lun->mode_pages.index[i]; 3963 if (lun->be_lun->lun_type == T_DIRECT && 3964 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 3965 continue; 3966 if (lun->be_lun->lun_type == T_PROCESSOR && 3967 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 3968 continue; 3969 if (lun->be_lun->lun_type == T_CDROM && 3970 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 3971 continue; 3972 3973 page_code = page_index->page_code & SMPH_PC_MASK; 3974 switch (page_code) { 3975 case SMS_RW_ERROR_RECOVERY_PAGE: { 3976 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 3977 ("subpage %#x for page %#x is incorrect!", 3978 page_index->subpage, page_code)); 3979 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 3980 &rw_er_page_default, 3981 sizeof(rw_er_page_default)); 3982 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 3983 &rw_er_page_changeable, 3984 sizeof(rw_er_page_changeable)); 3985 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 3986 &rw_er_page_default, 3987 sizeof(rw_er_page_default)); 3988 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 3989 &rw_er_page_default, 3990 sizeof(rw_er_page_default)); 3991 page_index->page_data = 3992 (uint8_t *)lun->mode_pages.rw_er_page; 3993 break; 3994 } 3995 case SMS_FORMAT_DEVICE_PAGE: { 3996 struct scsi_format_page *format_page; 3997 3998 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 3999 ("subpage %#x for page %#x is incorrect!", 4000 page_index->subpage, page_code)); 4001 4002 /* 4003 * Sectors per track are set above. Bytes per 4004 * sector need to be set here on a per-LUN basis. 4005 */ 4006 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 4007 &format_page_default, 4008 sizeof(format_page_default)); 4009 memcpy(&lun->mode_pages.format_page[ 4010 CTL_PAGE_CHANGEABLE], &format_page_changeable, 4011 sizeof(format_page_changeable)); 4012 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 4013 &format_page_default, 4014 sizeof(format_page_default)); 4015 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 4016 &format_page_default, 4017 sizeof(format_page_default)); 4018 4019 format_page = &lun->mode_pages.format_page[ 4020 CTL_PAGE_CURRENT]; 4021 scsi_ulto2b(lun->be_lun->blocksize, 4022 format_page->bytes_per_sector); 4023 4024 format_page = &lun->mode_pages.format_page[ 4025 CTL_PAGE_DEFAULT]; 4026 scsi_ulto2b(lun->be_lun->blocksize, 4027 format_page->bytes_per_sector); 4028 4029 format_page = &lun->mode_pages.format_page[ 4030 CTL_PAGE_SAVED]; 4031 scsi_ulto2b(lun->be_lun->blocksize, 4032 format_page->bytes_per_sector); 4033 4034 page_index->page_data = 4035 (uint8_t *)lun->mode_pages.format_page; 4036 break; 4037 } 4038 case SMS_RIGID_DISK_PAGE: { 4039 struct scsi_rigid_disk_page *rigid_disk_page; 4040 uint32_t sectors_per_cylinder; 4041 uint64_t cylinders; 4042 #ifndef __XSCALE__ 4043 int shift; 4044 #endif /* !__XSCALE__ */ 4045 4046 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4047 ("subpage %#x for page %#x is incorrect!", 4048 page_index->subpage, page_code)); 4049 4050 /* 4051 * Rotation rate and sectors per track are set 4052 * above. We calculate the cylinders here based on 4053 * capacity. Due to the number of heads and 4054 * sectors per track we're using, smaller arrays 4055 * may turn out to have 0 cylinders. Linux and 4056 * FreeBSD don't pay attention to these mode pages 4057 * to figure out capacity, but Solaris does. It 4058 * seems to deal with 0 cylinders just fine, and 4059 * works out a fake geometry based on the capacity. 4060 */ 4061 memcpy(&lun->mode_pages.rigid_disk_page[ 4062 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4063 sizeof(rigid_disk_page_default)); 4064 memcpy(&lun->mode_pages.rigid_disk_page[ 4065 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4066 sizeof(rigid_disk_page_changeable)); 4067 4068 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4069 CTL_DEFAULT_HEADS; 4070 4071 /* 4072 * The divide method here will be more accurate, 4073 * probably, but results in floating point being 4074 * used in the kernel on i386 (__udivdi3()). On the 4075 * XScale, though, __udivdi3() is implemented in 4076 * software. 4077 * 4078 * The shift method for cylinder calculation is 4079 * accurate if sectors_per_cylinder is a power of 4080 * 2. Otherwise it might be slightly off -- you 4081 * might have a bit of a truncation problem. 4082 */ 4083 #ifdef __XSCALE__ 4084 cylinders = (lun->be_lun->maxlba + 1) / 4085 sectors_per_cylinder; 4086 #else 4087 for (shift = 31; shift > 0; shift--) { 4088 if (sectors_per_cylinder & (1 << shift)) 4089 break; 4090 } 4091 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4092 #endif 4093 4094 /* 4095 * We've basically got 3 bytes, or 24 bits for the 4096 * cylinder size in the mode page. If we're over, 4097 * just round down to 2^24. 4098 */ 4099 if (cylinders > 0xffffff) 4100 cylinders = 0xffffff; 4101 4102 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4103 CTL_PAGE_DEFAULT]; 4104 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4105 4106 if ((value = ctl_get_opt(&lun->be_lun->options, 4107 "rpm")) != NULL) { 4108 scsi_ulto2b(strtol(value, NULL, 0), 4109 rigid_disk_page->rotation_rate); 4110 } 4111 4112 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 4113 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4114 sizeof(rigid_disk_page_default)); 4115 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 4116 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4117 sizeof(rigid_disk_page_default)); 4118 4119 page_index->page_data = 4120 (uint8_t *)lun->mode_pages.rigid_disk_page; 4121 break; 4122 } 4123 case SMS_VERIFY_ERROR_RECOVERY_PAGE: { 4124 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4125 ("subpage %#x for page %#x is incorrect!", 4126 page_index->subpage, page_code)); 4127 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_CURRENT], 4128 &verify_er_page_default, 4129 sizeof(verify_er_page_default)); 4130 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_CHANGEABLE], 4131 &verify_er_page_changeable, 4132 sizeof(verify_er_page_changeable)); 4133 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_DEFAULT], 4134 &verify_er_page_default, 4135 sizeof(verify_er_page_default)); 4136 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_SAVED], 4137 &verify_er_page_default, 4138 sizeof(verify_er_page_default)); 4139 page_index->page_data = 4140 (uint8_t *)lun->mode_pages.verify_er_page; 4141 break; 4142 } 4143 case SMS_CACHING_PAGE: { 4144 struct scsi_caching_page *caching_page; 4145 4146 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4147 ("subpage %#x for page %#x is incorrect!", 4148 page_index->subpage, page_code)); 4149 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4150 &caching_page_default, 4151 sizeof(caching_page_default)); 4152 memcpy(&lun->mode_pages.caching_page[ 4153 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4154 sizeof(caching_page_changeable)); 4155 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4156 &caching_page_default, 4157 sizeof(caching_page_default)); 4158 caching_page = &lun->mode_pages.caching_page[ 4159 CTL_PAGE_SAVED]; 4160 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4161 if (value != NULL && strcmp(value, "off") == 0) 4162 caching_page->flags1 &= ~SCP_WCE; 4163 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4164 if (value != NULL && strcmp(value, "off") == 0) 4165 caching_page->flags1 |= SCP_RCD; 4166 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4167 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4168 sizeof(caching_page_default)); 4169 page_index->page_data = 4170 (uint8_t *)lun->mode_pages.caching_page; 4171 break; 4172 } 4173 case SMS_CONTROL_MODE_PAGE: { 4174 switch (page_index->subpage) { 4175 case SMS_SUBPAGE_PAGE_0: { 4176 struct scsi_control_page *control_page; 4177 4178 memcpy(&lun->mode_pages.control_page[ 4179 CTL_PAGE_DEFAULT], 4180 &control_page_default, 4181 sizeof(control_page_default)); 4182 memcpy(&lun->mode_pages.control_page[ 4183 CTL_PAGE_CHANGEABLE], 4184 &control_page_changeable, 4185 sizeof(control_page_changeable)); 4186 memcpy(&lun->mode_pages.control_page[ 4187 CTL_PAGE_SAVED], 4188 &control_page_default, 4189 sizeof(control_page_default)); 4190 control_page = &lun->mode_pages.control_page[ 4191 CTL_PAGE_SAVED]; 4192 value = ctl_get_opt(&lun->be_lun->options, 4193 "reordering"); 4194 if (value != NULL && 4195 strcmp(value, "unrestricted") == 0) { 4196 control_page->queue_flags &= 4197 ~SCP_QUEUE_ALG_MASK; 4198 control_page->queue_flags |= 4199 SCP_QUEUE_ALG_UNRESTRICTED; 4200 } 4201 memcpy(&lun->mode_pages.control_page[ 4202 CTL_PAGE_CURRENT], 4203 &lun->mode_pages.control_page[ 4204 CTL_PAGE_SAVED], 4205 sizeof(control_page_default)); 4206 page_index->page_data = 4207 (uint8_t *)lun->mode_pages.control_page; 4208 break; 4209 } 4210 case 0x01: 4211 memcpy(&lun->mode_pages.control_ext_page[ 4212 CTL_PAGE_DEFAULT], 4213 &control_ext_page_default, 4214 sizeof(control_ext_page_default)); 4215 memcpy(&lun->mode_pages.control_ext_page[ 4216 CTL_PAGE_CHANGEABLE], 4217 &control_ext_page_changeable, 4218 sizeof(control_ext_page_changeable)); 4219 memcpy(&lun->mode_pages.control_ext_page[ 4220 CTL_PAGE_SAVED], 4221 &control_ext_page_default, 4222 sizeof(control_ext_page_default)); 4223 memcpy(&lun->mode_pages.control_ext_page[ 4224 CTL_PAGE_CURRENT], 4225 &lun->mode_pages.control_ext_page[ 4226 CTL_PAGE_SAVED], 4227 sizeof(control_ext_page_default)); 4228 page_index->page_data = 4229 (uint8_t *)lun->mode_pages.control_ext_page; 4230 break; 4231 default: 4232 panic("subpage %#x for page %#x is incorrect!", 4233 page_index->subpage, page_code); 4234 } 4235 break; 4236 } 4237 case SMS_INFO_EXCEPTIONS_PAGE: { 4238 switch (page_index->subpage) { 4239 case SMS_SUBPAGE_PAGE_0: 4240 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 4241 &ie_page_default, 4242 sizeof(ie_page_default)); 4243 memcpy(&lun->mode_pages.ie_page[ 4244 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 4245 sizeof(ie_page_changeable)); 4246 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 4247 &ie_page_default, 4248 sizeof(ie_page_default)); 4249 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 4250 &ie_page_default, 4251 sizeof(ie_page_default)); 4252 page_index->page_data = 4253 (uint8_t *)lun->mode_pages.ie_page; 4254 break; 4255 case 0x02: { 4256 struct ctl_logical_block_provisioning_page *page; 4257 4258 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 4259 &lbp_page_default, 4260 sizeof(lbp_page_default)); 4261 memcpy(&lun->mode_pages.lbp_page[ 4262 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 4263 sizeof(lbp_page_changeable)); 4264 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4265 &lbp_page_default, 4266 sizeof(lbp_page_default)); 4267 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 4268 value = ctl_get_opt(&lun->be_lun->options, 4269 "avail-threshold"); 4270 if (value != NULL && 4271 ctl_expand_number(value, &ival) == 0) { 4272 page->descr[0].flags |= SLBPPD_ENABLED | 4273 SLBPPD_ARMING_DEC; 4274 if (lun->be_lun->blocksize) 4275 ival /= lun->be_lun->blocksize; 4276 else 4277 ival /= 512; 4278 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4279 page->descr[0].count); 4280 } 4281 value = ctl_get_opt(&lun->be_lun->options, 4282 "used-threshold"); 4283 if (value != NULL && 4284 ctl_expand_number(value, &ival) == 0) { 4285 page->descr[1].flags |= SLBPPD_ENABLED | 4286 SLBPPD_ARMING_INC; 4287 if (lun->be_lun->blocksize) 4288 ival /= lun->be_lun->blocksize; 4289 else 4290 ival /= 512; 4291 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4292 page->descr[1].count); 4293 } 4294 value = ctl_get_opt(&lun->be_lun->options, 4295 "pool-avail-threshold"); 4296 if (value != NULL && 4297 ctl_expand_number(value, &ival) == 0) { 4298 page->descr[2].flags |= SLBPPD_ENABLED | 4299 SLBPPD_ARMING_DEC; 4300 if (lun->be_lun->blocksize) 4301 ival /= lun->be_lun->blocksize; 4302 else 4303 ival /= 512; 4304 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4305 page->descr[2].count); 4306 } 4307 value = ctl_get_opt(&lun->be_lun->options, 4308 "pool-used-threshold"); 4309 if (value != NULL && 4310 ctl_expand_number(value, &ival) == 0) { 4311 page->descr[3].flags |= SLBPPD_ENABLED | 4312 SLBPPD_ARMING_INC; 4313 if (lun->be_lun->blocksize) 4314 ival /= lun->be_lun->blocksize; 4315 else 4316 ival /= 512; 4317 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4318 page->descr[3].count); 4319 } 4320 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 4321 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4322 sizeof(lbp_page_default)); 4323 page_index->page_data = 4324 (uint8_t *)lun->mode_pages.lbp_page; 4325 break; 4326 } 4327 default: 4328 panic("subpage %#x for page %#x is incorrect!", 4329 page_index->subpage, page_code); 4330 } 4331 break; 4332 } 4333 case SMS_CDDVD_CAPS_PAGE:{ 4334 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4335 ("subpage %#x for page %#x is incorrect!", 4336 page_index->subpage, page_code)); 4337 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_DEFAULT], 4338 &cddvd_page_default, 4339 sizeof(cddvd_page_default)); 4340 memcpy(&lun->mode_pages.cddvd_page[ 4341 CTL_PAGE_CHANGEABLE], &cddvd_page_changeable, 4342 sizeof(cddvd_page_changeable)); 4343 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4344 &cddvd_page_default, 4345 sizeof(cddvd_page_default)); 4346 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_CURRENT], 4347 &lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4348 sizeof(cddvd_page_default)); 4349 page_index->page_data = 4350 (uint8_t *)lun->mode_pages.cddvd_page; 4351 break; 4352 } 4353 default: 4354 panic("invalid page code value %#x", page_code); 4355 } 4356 } 4357 4358 return (CTL_RETVAL_COMPLETE); 4359 } 4360 4361 static int 4362 ctl_init_log_page_index(struct ctl_lun *lun) 4363 { 4364 struct ctl_page_index *page_index; 4365 int i, j, k, prev; 4366 4367 memcpy(&lun->log_pages.index, log_page_index_template, 4368 sizeof(log_page_index_template)); 4369 4370 prev = -1; 4371 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4372 4373 page_index = &lun->log_pages.index[i]; 4374 if (lun->be_lun->lun_type == T_DIRECT && 4375 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 4376 continue; 4377 if (lun->be_lun->lun_type == T_PROCESSOR && 4378 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 4379 continue; 4380 if (lun->be_lun->lun_type == T_CDROM && 4381 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 4382 continue; 4383 4384 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4385 lun->backend->lun_attr == NULL) 4386 continue; 4387 4388 if (page_index->page_code != prev) { 4389 lun->log_pages.pages_page[j] = page_index->page_code; 4390 prev = page_index->page_code; 4391 j++; 4392 } 4393 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4394 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4395 k++; 4396 } 4397 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4398 lun->log_pages.index[0].page_len = j; 4399 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4400 lun->log_pages.index[1].page_len = k * 2; 4401 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4402 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4403 lun->log_pages.index[3].page_data = (uint8_t *)&lun->log_pages.stat_page; 4404 lun->log_pages.index[3].page_len = sizeof(lun->log_pages.stat_page); 4405 lun->log_pages.index[4].page_data = (uint8_t *)&lun->log_pages.ie_page; 4406 lun->log_pages.index[4].page_len = sizeof(lun->log_pages.ie_page); 4407 4408 return (CTL_RETVAL_COMPLETE); 4409 } 4410 4411 static int 4412 hex2bin(const char *str, uint8_t *buf, int buf_size) 4413 { 4414 int i; 4415 u_char c; 4416 4417 memset(buf, 0, buf_size); 4418 while (isspace(str[0])) 4419 str++; 4420 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4421 str += 2; 4422 buf_size *= 2; 4423 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4424 while (str[i] == '-') /* Skip dashes in UUIDs. */ 4425 str++; 4426 c = str[i]; 4427 if (isdigit(c)) 4428 c -= '0'; 4429 else if (isalpha(c)) 4430 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4431 else 4432 break; 4433 if (c >= 16) 4434 break; 4435 if ((i & 1) == 0) 4436 buf[i / 2] |= (c << 4); 4437 else 4438 buf[i / 2] |= c; 4439 } 4440 return ((i + 1) / 2); 4441 } 4442 4443 /* 4444 * LUN allocation. 4445 * 4446 * Requirements: 4447 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4448 * wants us to allocate the LUN and he can block. 4449 * - ctl_softc is always set 4450 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4451 * 4452 * Returns 0 for success, non-zero (errno) for failure. 4453 */ 4454 static int 4455 ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4456 struct ctl_be_lun *const be_lun) 4457 { 4458 struct ctl_lun *nlun, *lun; 4459 struct scsi_vpd_id_descriptor *desc; 4460 struct scsi_vpd_id_t10 *t10id; 4461 const char *eui, *naa, *scsiname, *uuid, *vendor, *value; 4462 int lun_number, lun_malloced; 4463 int devidlen, idlen1, idlen2 = 0, len; 4464 4465 if (be_lun == NULL) 4466 return (EINVAL); 4467 4468 /* 4469 * We currently only support Direct Access or Processor LUN types. 4470 */ 4471 switch (be_lun->lun_type) { 4472 case T_DIRECT: 4473 case T_PROCESSOR: 4474 case T_CDROM: 4475 break; 4476 case T_SEQUENTIAL: 4477 case T_CHANGER: 4478 default: 4479 be_lun->lun_config_status(be_lun->be_lun, 4480 CTL_LUN_CONFIG_FAILURE); 4481 break; 4482 } 4483 if (ctl_lun == NULL) { 4484 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4485 lun_malloced = 1; 4486 } else { 4487 lun_malloced = 0; 4488 lun = ctl_lun; 4489 } 4490 4491 memset(lun, 0, sizeof(*lun)); 4492 if (lun_malloced) 4493 lun->flags = CTL_LUN_MALLOCED; 4494 4495 /* Generate LUN ID. */ 4496 devidlen = max(CTL_DEVID_MIN_LEN, 4497 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4498 idlen1 = sizeof(*t10id) + devidlen; 4499 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4500 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4501 if (scsiname != NULL) { 4502 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4503 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4504 } 4505 eui = ctl_get_opt(&be_lun->options, "eui"); 4506 if (eui != NULL) { 4507 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4508 } 4509 naa = ctl_get_opt(&be_lun->options, "naa"); 4510 if (naa != NULL) { 4511 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4512 } 4513 uuid = ctl_get_opt(&be_lun->options, "uuid"); 4514 if (uuid != NULL) { 4515 len += sizeof(struct scsi_vpd_id_descriptor) + 18; 4516 } 4517 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4518 M_CTL, M_WAITOK | M_ZERO); 4519 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4520 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4521 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4522 desc->length = idlen1; 4523 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4524 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4525 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4526 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4527 } else { 4528 strncpy(t10id->vendor, vendor, 4529 min(sizeof(t10id->vendor), strlen(vendor))); 4530 } 4531 strncpy((char *)t10id->vendor_spec_id, 4532 (char *)be_lun->device_id, devidlen); 4533 if (scsiname != NULL) { 4534 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4535 desc->length); 4536 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4537 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4538 SVPD_ID_TYPE_SCSI_NAME; 4539 desc->length = idlen2; 4540 strlcpy(desc->identifier, scsiname, idlen2); 4541 } 4542 if (eui != NULL) { 4543 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4544 desc->length); 4545 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4546 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4547 SVPD_ID_TYPE_EUI64; 4548 desc->length = hex2bin(eui, desc->identifier, 16); 4549 desc->length = desc->length > 12 ? 16 : 4550 (desc->length > 8 ? 12 : 8); 4551 len -= 16 - desc->length; 4552 } 4553 if (naa != NULL) { 4554 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4555 desc->length); 4556 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4557 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4558 SVPD_ID_TYPE_NAA; 4559 desc->length = hex2bin(naa, desc->identifier, 16); 4560 desc->length = desc->length > 8 ? 16 : 8; 4561 len -= 16 - desc->length; 4562 } 4563 if (uuid != NULL) { 4564 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4565 desc->length); 4566 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4567 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4568 SVPD_ID_TYPE_UUID; 4569 desc->identifier[0] = 0x10; 4570 hex2bin(uuid, &desc->identifier[2], 16); 4571 desc->length = 18; 4572 } 4573 lun->lun_devid->len = len; 4574 4575 mtx_lock(&ctl_softc->ctl_lock); 4576 /* 4577 * See if the caller requested a particular LUN number. If so, see 4578 * if it is available. Otherwise, allocate the first available LUN. 4579 */ 4580 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4581 if ((be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) 4582 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4583 mtx_unlock(&ctl_softc->ctl_lock); 4584 if (be_lun->req_lun_id > (CTL_MAX_LUNS - 1)) { 4585 printf("ctl: requested LUN ID %d is higher " 4586 "than CTL_MAX_LUNS - 1 (%d)\n", 4587 be_lun->req_lun_id, CTL_MAX_LUNS - 1); 4588 } else { 4589 /* 4590 * XXX KDM return an error, or just assign 4591 * another LUN ID in this case?? 4592 */ 4593 printf("ctl: requested LUN ID %d is already " 4594 "in use\n", be_lun->req_lun_id); 4595 } 4596 fail: 4597 free(lun->lun_devid, M_CTL); 4598 if (lun->flags & CTL_LUN_MALLOCED) 4599 free(lun, M_CTL); 4600 be_lun->lun_config_status(be_lun->be_lun, 4601 CTL_LUN_CONFIG_FAILURE); 4602 return (ENOSPC); 4603 } 4604 lun_number = be_lun->req_lun_id; 4605 } else { 4606 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, 0, CTL_MAX_LUNS); 4607 if (lun_number == -1) { 4608 mtx_unlock(&ctl_softc->ctl_lock); 4609 printf("ctl: can't allocate LUN, out of LUNs\n"); 4610 goto fail; 4611 } 4612 } 4613 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4614 mtx_unlock(&ctl_softc->ctl_lock); 4615 4616 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4617 lun->lun = lun_number; 4618 lun->be_lun = be_lun; 4619 /* 4620 * The processor LUN is always enabled. Disk LUNs come on line 4621 * disabled, and must be enabled by the backend. 4622 */ 4623 lun->flags |= CTL_LUN_DISABLED; 4624 lun->backend = be_lun->be; 4625 be_lun->ctl_lun = lun; 4626 be_lun->lun_id = lun_number; 4627 atomic_add_int(&be_lun->be->num_luns, 1); 4628 if (be_lun->flags & CTL_LUN_FLAG_EJECTED) 4629 lun->flags |= CTL_LUN_EJECTED; 4630 if (be_lun->flags & CTL_LUN_FLAG_NO_MEDIA) 4631 lun->flags |= CTL_LUN_NO_MEDIA; 4632 if (be_lun->flags & CTL_LUN_FLAG_STOPPED) 4633 lun->flags |= CTL_LUN_STOPPED; 4634 4635 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4636 lun->flags |= CTL_LUN_PRIMARY_SC; 4637 4638 value = ctl_get_opt(&be_lun->options, "removable"); 4639 if (value != NULL) { 4640 if (strcmp(value, "on") == 0) 4641 lun->flags |= CTL_LUN_REMOVABLE; 4642 } else if (be_lun->lun_type == T_CDROM) 4643 lun->flags |= CTL_LUN_REMOVABLE; 4644 4645 lun->ctl_softc = ctl_softc; 4646 #ifdef CTL_TIME_IO 4647 lun->last_busy = getsbinuptime(); 4648 #endif 4649 TAILQ_INIT(&lun->ooa_queue); 4650 TAILQ_INIT(&lun->blocked_queue); 4651 STAILQ_INIT(&lun->error_list); 4652 lun->ie_reported = 1; 4653 callout_init_mtx(&lun->ie_callout, &lun->lun_lock, 0); 4654 ctl_tpc_lun_init(lun); 4655 if (lun->flags & CTL_LUN_REMOVABLE) { 4656 lun->prevent = malloc((CTL_MAX_INITIATORS + 31) / 32 * 4, 4657 M_CTL, M_WAITOK); 4658 } 4659 4660 /* 4661 * Initialize the mode and log page index. 4662 */ 4663 ctl_init_page_index(lun); 4664 ctl_init_log_page_index(lun); 4665 4666 /* Setup statistics gathering */ 4667 #ifdef CTL_LEGACY_STATS 4668 lun->legacy_stats.device_type = be_lun->lun_type; 4669 lun->legacy_stats.lun_number = lun_number; 4670 lun->legacy_stats.blocksize = be_lun->blocksize; 4671 if (be_lun->blocksize == 0) 4672 lun->legacy_stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4673 for (len = 0; len < CTL_MAX_PORTS; len++) 4674 lun->legacy_stats.ports[len].targ_port = len; 4675 #endif /* CTL_LEGACY_STATS */ 4676 lun->stats.item = lun_number; 4677 4678 /* 4679 * Now, before we insert this lun on the lun list, set the lun 4680 * inventory changed UA for all other luns. 4681 */ 4682 mtx_lock(&ctl_softc->ctl_lock); 4683 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4684 mtx_lock(&nlun->lun_lock); 4685 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4686 mtx_unlock(&nlun->lun_lock); 4687 } 4688 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4689 ctl_softc->ctl_luns[lun_number] = lun; 4690 ctl_softc->num_luns++; 4691 mtx_unlock(&ctl_softc->ctl_lock); 4692 4693 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4694 return (0); 4695 } 4696 4697 /* 4698 * Delete a LUN. 4699 * Assumptions: 4700 * - LUN has already been marked invalid and any pending I/O has been taken 4701 * care of. 4702 */ 4703 static int 4704 ctl_free_lun(struct ctl_lun *lun) 4705 { 4706 struct ctl_softc *softc = lun->ctl_softc; 4707 struct ctl_lun *nlun; 4708 int i; 4709 4710 mtx_assert(&softc->ctl_lock, MA_OWNED); 4711 4712 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4713 4714 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4715 4716 softc->ctl_luns[lun->lun] = NULL; 4717 4718 if (!TAILQ_EMPTY(&lun->ooa_queue)) 4719 panic("Freeing a LUN %p with outstanding I/O!!\n", lun); 4720 4721 softc->num_luns--; 4722 4723 /* 4724 * Tell the backend to free resources, if this LUN has a backend. 4725 */ 4726 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4727 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4728 4729 lun->ie_reportcnt = UINT32_MAX; 4730 callout_drain(&lun->ie_callout); 4731 4732 ctl_tpc_lun_shutdown(lun); 4733 mtx_destroy(&lun->lun_lock); 4734 free(lun->lun_devid, M_CTL); 4735 for (i = 0; i < CTL_MAX_PORTS; i++) 4736 free(lun->pending_ua[i], M_CTL); 4737 for (i = 0; i < CTL_MAX_PORTS; i++) 4738 free(lun->pr_keys[i], M_CTL); 4739 free(lun->write_buffer, M_CTL); 4740 free(lun->prevent, M_CTL); 4741 if (lun->flags & CTL_LUN_MALLOCED) 4742 free(lun, M_CTL); 4743 4744 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4745 mtx_lock(&nlun->lun_lock); 4746 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4747 mtx_unlock(&nlun->lun_lock); 4748 } 4749 4750 return (0); 4751 } 4752 4753 static void 4754 ctl_create_lun(struct ctl_be_lun *be_lun) 4755 { 4756 4757 /* 4758 * ctl_alloc_lun() should handle all potential failure cases. 4759 */ 4760 ctl_alloc_lun(control_softc, NULL, be_lun); 4761 } 4762 4763 int 4764 ctl_add_lun(struct ctl_be_lun *be_lun) 4765 { 4766 struct ctl_softc *softc = control_softc; 4767 4768 mtx_lock(&softc->ctl_lock); 4769 STAILQ_INSERT_TAIL(&softc->pending_lun_queue, be_lun, links); 4770 mtx_unlock(&softc->ctl_lock); 4771 wakeup(&softc->pending_lun_queue); 4772 4773 return (0); 4774 } 4775 4776 int 4777 ctl_enable_lun(struct ctl_be_lun *be_lun) 4778 { 4779 struct ctl_softc *softc; 4780 struct ctl_port *port, *nport; 4781 struct ctl_lun *lun; 4782 int retval; 4783 4784 lun = (struct ctl_lun *)be_lun->ctl_lun; 4785 softc = lun->ctl_softc; 4786 4787 mtx_lock(&softc->ctl_lock); 4788 mtx_lock(&lun->lun_lock); 4789 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4790 /* 4791 * eh? Why did we get called if the LUN is already 4792 * enabled? 4793 */ 4794 mtx_unlock(&lun->lun_lock); 4795 mtx_unlock(&softc->ctl_lock); 4796 return (0); 4797 } 4798 lun->flags &= ~CTL_LUN_DISABLED; 4799 mtx_unlock(&lun->lun_lock); 4800 4801 STAILQ_FOREACH_SAFE(port, &softc->port_list, links, nport) { 4802 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4803 port->lun_map != NULL || port->lun_enable == NULL) 4804 continue; 4805 4806 /* 4807 * Drop the lock while we call the FETD's enable routine. 4808 * This can lead to a callback into CTL (at least in the 4809 * case of the internal initiator frontend. 4810 */ 4811 mtx_unlock(&softc->ctl_lock); 4812 retval = port->lun_enable(port->targ_lun_arg, lun->lun); 4813 mtx_lock(&softc->ctl_lock); 4814 if (retval != 0) { 4815 printf("%s: FETD %s port %d returned error " 4816 "%d for lun_enable on lun %jd\n", 4817 __func__, port->port_name, port->targ_port, 4818 retval, (intmax_t)lun->lun); 4819 } 4820 } 4821 4822 mtx_unlock(&softc->ctl_lock); 4823 ctl_isc_announce_lun(lun); 4824 4825 return (0); 4826 } 4827 4828 int 4829 ctl_disable_lun(struct ctl_be_lun *be_lun) 4830 { 4831 struct ctl_softc *softc; 4832 struct ctl_port *port; 4833 struct ctl_lun *lun; 4834 int retval; 4835 4836 lun = (struct ctl_lun *)be_lun->ctl_lun; 4837 softc = lun->ctl_softc; 4838 4839 mtx_lock(&softc->ctl_lock); 4840 mtx_lock(&lun->lun_lock); 4841 if (lun->flags & CTL_LUN_DISABLED) { 4842 mtx_unlock(&lun->lun_lock); 4843 mtx_unlock(&softc->ctl_lock); 4844 return (0); 4845 } 4846 lun->flags |= CTL_LUN_DISABLED; 4847 mtx_unlock(&lun->lun_lock); 4848 4849 STAILQ_FOREACH(port, &softc->port_list, links) { 4850 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4851 port->lun_map != NULL || port->lun_disable == NULL) 4852 continue; 4853 4854 /* 4855 * Drop the lock before we call the frontend's disable 4856 * routine, to avoid lock order reversals. 4857 * 4858 * XXX KDM what happens if the frontend list changes while 4859 * we're traversing it? It's unlikely, but should be handled. 4860 */ 4861 mtx_unlock(&softc->ctl_lock); 4862 retval = port->lun_disable(port->targ_lun_arg, lun->lun); 4863 mtx_lock(&softc->ctl_lock); 4864 if (retval != 0) { 4865 printf("%s: FETD %s port %d returned error " 4866 "%d for lun_disable on lun %jd\n", 4867 __func__, port->port_name, port->targ_port, 4868 retval, (intmax_t)lun->lun); 4869 } 4870 } 4871 4872 mtx_unlock(&softc->ctl_lock); 4873 ctl_isc_announce_lun(lun); 4874 4875 return (0); 4876 } 4877 4878 int 4879 ctl_start_lun(struct ctl_be_lun *be_lun) 4880 { 4881 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4882 4883 mtx_lock(&lun->lun_lock); 4884 lun->flags &= ~CTL_LUN_STOPPED; 4885 mtx_unlock(&lun->lun_lock); 4886 return (0); 4887 } 4888 4889 int 4890 ctl_stop_lun(struct ctl_be_lun *be_lun) 4891 { 4892 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4893 4894 mtx_lock(&lun->lun_lock); 4895 lun->flags |= CTL_LUN_STOPPED; 4896 mtx_unlock(&lun->lun_lock); 4897 return (0); 4898 } 4899 4900 int 4901 ctl_lun_no_media(struct ctl_be_lun *be_lun) 4902 { 4903 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4904 4905 mtx_lock(&lun->lun_lock); 4906 lun->flags |= CTL_LUN_NO_MEDIA; 4907 mtx_unlock(&lun->lun_lock); 4908 return (0); 4909 } 4910 4911 int 4912 ctl_lun_has_media(struct ctl_be_lun *be_lun) 4913 { 4914 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4915 union ctl_ha_msg msg; 4916 4917 mtx_lock(&lun->lun_lock); 4918 lun->flags &= ~(CTL_LUN_NO_MEDIA | CTL_LUN_EJECTED); 4919 if (lun->flags & CTL_LUN_REMOVABLE) 4920 ctl_est_ua_all(lun, -1, CTL_UA_MEDIUM_CHANGE); 4921 mtx_unlock(&lun->lun_lock); 4922 if ((lun->flags & CTL_LUN_REMOVABLE) && 4923 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4924 bzero(&msg.ua, sizeof(msg.ua)); 4925 msg.hdr.msg_type = CTL_MSG_UA; 4926 msg.hdr.nexus.initid = -1; 4927 msg.hdr.nexus.targ_port = -1; 4928 msg.hdr.nexus.targ_lun = lun->lun; 4929 msg.hdr.nexus.targ_mapped_lun = lun->lun; 4930 msg.ua.ua_all = 1; 4931 msg.ua.ua_set = 1; 4932 msg.ua.ua_type = CTL_UA_MEDIUM_CHANGE; 4933 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 4934 M_WAITOK); 4935 } 4936 return (0); 4937 } 4938 4939 int 4940 ctl_lun_ejected(struct ctl_be_lun *be_lun) 4941 { 4942 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4943 4944 mtx_lock(&lun->lun_lock); 4945 lun->flags |= CTL_LUN_EJECTED; 4946 mtx_unlock(&lun->lun_lock); 4947 return (0); 4948 } 4949 4950 int 4951 ctl_lun_primary(struct ctl_be_lun *be_lun) 4952 { 4953 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4954 4955 mtx_lock(&lun->lun_lock); 4956 lun->flags |= CTL_LUN_PRIMARY_SC; 4957 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4958 mtx_unlock(&lun->lun_lock); 4959 ctl_isc_announce_lun(lun); 4960 return (0); 4961 } 4962 4963 int 4964 ctl_lun_secondary(struct ctl_be_lun *be_lun) 4965 { 4966 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4967 4968 mtx_lock(&lun->lun_lock); 4969 lun->flags &= ~CTL_LUN_PRIMARY_SC; 4970 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4971 mtx_unlock(&lun->lun_lock); 4972 ctl_isc_announce_lun(lun); 4973 return (0); 4974 } 4975 4976 int 4977 ctl_invalidate_lun(struct ctl_be_lun *be_lun) 4978 { 4979 struct ctl_softc *softc; 4980 struct ctl_lun *lun; 4981 4982 lun = (struct ctl_lun *)be_lun->ctl_lun; 4983 softc = lun->ctl_softc; 4984 4985 mtx_lock(&lun->lun_lock); 4986 4987 /* 4988 * The LUN needs to be disabled before it can be marked invalid. 4989 */ 4990 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4991 mtx_unlock(&lun->lun_lock); 4992 return (-1); 4993 } 4994 /* 4995 * Mark the LUN invalid. 4996 */ 4997 lun->flags |= CTL_LUN_INVALID; 4998 4999 /* 5000 * If there is nothing in the OOA queue, go ahead and free the LUN. 5001 * If we have something in the OOA queue, we'll free it when the 5002 * last I/O completes. 5003 */ 5004 if (TAILQ_EMPTY(&lun->ooa_queue)) { 5005 mtx_unlock(&lun->lun_lock); 5006 mtx_lock(&softc->ctl_lock); 5007 ctl_free_lun(lun); 5008 mtx_unlock(&softc->ctl_lock); 5009 } else 5010 mtx_unlock(&lun->lun_lock); 5011 5012 return (0); 5013 } 5014 5015 void 5016 ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5017 { 5018 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 5019 union ctl_ha_msg msg; 5020 5021 mtx_lock(&lun->lun_lock); 5022 ctl_est_ua_all(lun, -1, CTL_UA_CAPACITY_CHANGE); 5023 mtx_unlock(&lun->lun_lock); 5024 if (lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 5025 /* Send msg to other side. */ 5026 bzero(&msg.ua, sizeof(msg.ua)); 5027 msg.hdr.msg_type = CTL_MSG_UA; 5028 msg.hdr.nexus.initid = -1; 5029 msg.hdr.nexus.targ_port = -1; 5030 msg.hdr.nexus.targ_lun = lun->lun; 5031 msg.hdr.nexus.targ_mapped_lun = lun->lun; 5032 msg.ua.ua_all = 1; 5033 msg.ua.ua_set = 1; 5034 msg.ua.ua_type = CTL_UA_CAPACITY_CHANGE; 5035 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 5036 M_WAITOK); 5037 } 5038 } 5039 5040 /* 5041 * Backend "memory move is complete" callback for requests that never 5042 * make it down to say RAIDCore's configuration code. 5043 */ 5044 int 5045 ctl_config_move_done(union ctl_io *io) 5046 { 5047 int retval; 5048 5049 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5050 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 5051 ("Config I/O type isn't CTL_IO_SCSI (%d)!", io->io_hdr.io_type)); 5052 5053 if ((io->io_hdr.port_status != 0) && 5054 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5055 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5056 /* 5057 * For hardware error sense keys, the sense key 5058 * specific value is defined to be a retry count, 5059 * but we use it to pass back an internal FETD 5060 * error code. XXX KDM Hopefully the FETD is only 5061 * using 16 bits for an error code, since that's 5062 * all the space we have in the sks field. 5063 */ 5064 ctl_set_internal_failure(&io->scsiio, 5065 /*sks_valid*/ 1, 5066 /*retry_count*/ 5067 io->io_hdr.port_status); 5068 } 5069 5070 if (ctl_debug & CTL_DEBUG_CDB_DATA) 5071 ctl_data_print(io); 5072 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 5073 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5074 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 5075 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5076 /* 5077 * XXX KDM just assuming a single pointer here, and not a 5078 * S/G list. If we start using S/G lists for config data, 5079 * we'll need to know how to clean them up here as well. 5080 */ 5081 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5082 free(io->scsiio.kern_data_ptr, M_CTL); 5083 ctl_done(io); 5084 retval = CTL_RETVAL_COMPLETE; 5085 } else { 5086 /* 5087 * XXX KDM now we need to continue data movement. Some 5088 * options: 5089 * - call ctl_scsiio() again? We don't do this for data 5090 * writes, because for those at least we know ahead of 5091 * time where the write will go and how long it is. For 5092 * config writes, though, that information is largely 5093 * contained within the write itself, thus we need to 5094 * parse out the data again. 5095 * 5096 * - Call some other function once the data is in? 5097 */ 5098 5099 /* 5100 * XXX KDM call ctl_scsiio() again for now, and check flag 5101 * bits to see whether we're allocated or not. 5102 */ 5103 retval = ctl_scsiio(&io->scsiio); 5104 } 5105 return (retval); 5106 } 5107 5108 /* 5109 * This gets called by a backend driver when it is done with a 5110 * data_submit method. 5111 */ 5112 void 5113 ctl_data_submit_done(union ctl_io *io) 5114 { 5115 /* 5116 * If the IO_CONT flag is set, we need to call the supplied 5117 * function to continue processing the I/O, instead of completing 5118 * the I/O just yet. 5119 * 5120 * If there is an error, though, we don't want to keep processing. 5121 * Instead, just send status back to the initiator. 5122 */ 5123 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5124 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5125 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5126 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5127 io->scsiio.io_cont(io); 5128 return; 5129 } 5130 ctl_done(io); 5131 } 5132 5133 /* 5134 * This gets called by a backend driver when it is done with a 5135 * configuration write. 5136 */ 5137 void 5138 ctl_config_write_done(union ctl_io *io) 5139 { 5140 uint8_t *buf; 5141 5142 /* 5143 * If the IO_CONT flag is set, we need to call the supplied 5144 * function to continue processing the I/O, instead of completing 5145 * the I/O just yet. 5146 * 5147 * If there is an error, though, we don't want to keep processing. 5148 * Instead, just send status back to the initiator. 5149 */ 5150 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5151 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5152 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5153 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5154 io->scsiio.io_cont(io); 5155 return; 5156 } 5157 /* 5158 * Since a configuration write can be done for commands that actually 5159 * have data allocated, like write buffer, and commands that have 5160 * no data, like start/stop unit, we need to check here. 5161 */ 5162 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5163 buf = io->scsiio.kern_data_ptr; 5164 else 5165 buf = NULL; 5166 ctl_done(io); 5167 if (buf) 5168 free(buf, M_CTL); 5169 } 5170 5171 void 5172 ctl_config_read_done(union ctl_io *io) 5173 { 5174 uint8_t *buf; 5175 5176 /* 5177 * If there is some error -- we are done, skip data transfer. 5178 */ 5179 if ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0 || 5180 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5181 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) { 5182 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5183 buf = io->scsiio.kern_data_ptr; 5184 else 5185 buf = NULL; 5186 ctl_done(io); 5187 if (buf) 5188 free(buf, M_CTL); 5189 return; 5190 } 5191 5192 /* 5193 * If the IO_CONT flag is set, we need to call the supplied 5194 * function to continue processing the I/O, instead of completing 5195 * the I/O just yet. 5196 */ 5197 if (io->io_hdr.flags & CTL_FLAG_IO_CONT) { 5198 io->scsiio.io_cont(io); 5199 return; 5200 } 5201 5202 ctl_datamove(io); 5203 } 5204 5205 /* 5206 * SCSI release command. 5207 */ 5208 int 5209 ctl_scsi_release(struct ctl_scsiio *ctsio) 5210 { 5211 struct ctl_lun *lun = CTL_LUN(ctsio); 5212 uint32_t residx; 5213 5214 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5215 5216 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5217 5218 /* 5219 * XXX KDM right now, we only support LUN reservation. We don't 5220 * support 3rd party reservations, or extent reservations, which 5221 * might actually need the parameter list. If we've gotten this 5222 * far, we've got a LUN reservation. Anything else got kicked out 5223 * above. So, according to SPC, ignore the length. 5224 */ 5225 5226 mtx_lock(&lun->lun_lock); 5227 5228 /* 5229 * According to SPC, it is not an error for an intiator to attempt 5230 * to release a reservation on a LUN that isn't reserved, or that 5231 * is reserved by another initiator. The reservation can only be 5232 * released, though, by the initiator who made it or by one of 5233 * several reset type events. 5234 */ 5235 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5236 lun->flags &= ~CTL_LUN_RESERVED; 5237 5238 mtx_unlock(&lun->lun_lock); 5239 5240 ctl_set_success(ctsio); 5241 ctl_done((union ctl_io *)ctsio); 5242 return (CTL_RETVAL_COMPLETE); 5243 } 5244 5245 int 5246 ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5247 { 5248 struct ctl_lun *lun = CTL_LUN(ctsio); 5249 uint32_t residx; 5250 5251 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5252 5253 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5254 5255 /* 5256 * XXX KDM right now, we only support LUN reservation. We don't 5257 * support 3rd party reservations, or extent reservations, which 5258 * might actually need the parameter list. If we've gotten this 5259 * far, we've got a LUN reservation. Anything else got kicked out 5260 * above. So, according to SPC, ignore the length. 5261 */ 5262 5263 mtx_lock(&lun->lun_lock); 5264 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5265 ctl_set_reservation_conflict(ctsio); 5266 goto bailout; 5267 } 5268 5269 /* SPC-3 exceptions to SPC-2 RESERVE and RELEASE behavior. */ 5270 if (lun->flags & CTL_LUN_PR_RESERVED) { 5271 ctl_set_success(ctsio); 5272 goto bailout; 5273 } 5274 5275 lun->flags |= CTL_LUN_RESERVED; 5276 lun->res_idx = residx; 5277 ctl_set_success(ctsio); 5278 5279 bailout: 5280 mtx_unlock(&lun->lun_lock); 5281 ctl_done((union ctl_io *)ctsio); 5282 return (CTL_RETVAL_COMPLETE); 5283 } 5284 5285 int 5286 ctl_start_stop(struct ctl_scsiio *ctsio) 5287 { 5288 struct ctl_lun *lun = CTL_LUN(ctsio); 5289 struct scsi_start_stop_unit *cdb; 5290 int retval; 5291 5292 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5293 5294 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5295 5296 if ((cdb->how & SSS_PC_MASK) == 0) { 5297 if ((lun->flags & CTL_LUN_PR_RESERVED) && 5298 (cdb->how & SSS_START) == 0) { 5299 uint32_t residx; 5300 5301 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5302 if (ctl_get_prkey(lun, residx) == 0 || 5303 (lun->pr_res_idx != residx && lun->pr_res_type < 4)) { 5304 5305 ctl_set_reservation_conflict(ctsio); 5306 ctl_done((union ctl_io *)ctsio); 5307 return (CTL_RETVAL_COMPLETE); 5308 } 5309 } 5310 5311 if ((cdb->how & SSS_LOEJ) && 5312 (lun->flags & CTL_LUN_REMOVABLE) == 0) { 5313 ctl_set_invalid_field(ctsio, 5314 /*sks_valid*/ 1, 5315 /*command*/ 1, 5316 /*field*/ 4, 5317 /*bit_valid*/ 1, 5318 /*bit*/ 1); 5319 ctl_done((union ctl_io *)ctsio); 5320 return (CTL_RETVAL_COMPLETE); 5321 } 5322 5323 if ((cdb->how & SSS_START) == 0 && (cdb->how & SSS_LOEJ) && 5324 lun->prevent_count > 0) { 5325 /* "Medium removal prevented" */ 5326 ctl_set_sense(ctsio, /*current_error*/ 1, 5327 /*sense_key*/(lun->flags & CTL_LUN_NO_MEDIA) ? 5328 SSD_KEY_NOT_READY : SSD_KEY_ILLEGAL_REQUEST, 5329 /*asc*/ 0x53, /*ascq*/ 0x02, SSD_ELEM_NONE); 5330 ctl_done((union ctl_io *)ctsio); 5331 return (CTL_RETVAL_COMPLETE); 5332 } 5333 } 5334 5335 retval = lun->backend->config_write((union ctl_io *)ctsio); 5336 return (retval); 5337 } 5338 5339 int 5340 ctl_prevent_allow(struct ctl_scsiio *ctsio) 5341 { 5342 struct ctl_lun *lun = CTL_LUN(ctsio); 5343 struct scsi_prevent *cdb; 5344 int retval; 5345 uint32_t initidx; 5346 5347 CTL_DEBUG_PRINT(("ctl_prevent_allow\n")); 5348 5349 cdb = (struct scsi_prevent *)ctsio->cdb; 5350 5351 if ((lun->flags & CTL_LUN_REMOVABLE) == 0 || lun->prevent == NULL) { 5352 ctl_set_invalid_opcode(ctsio); 5353 ctl_done((union ctl_io *)ctsio); 5354 return (CTL_RETVAL_COMPLETE); 5355 } 5356 5357 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5358 mtx_lock(&lun->lun_lock); 5359 if ((cdb->how & PR_PREVENT) && 5360 ctl_is_set(lun->prevent, initidx) == 0) { 5361 ctl_set_mask(lun->prevent, initidx); 5362 lun->prevent_count++; 5363 } else if ((cdb->how & PR_PREVENT) == 0 && 5364 ctl_is_set(lun->prevent, initidx)) { 5365 ctl_clear_mask(lun->prevent, initidx); 5366 lun->prevent_count--; 5367 } 5368 mtx_unlock(&lun->lun_lock); 5369 retval = lun->backend->config_write((union ctl_io *)ctsio); 5370 return (retval); 5371 } 5372 5373 /* 5374 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5375 * we don't really do anything with the LBA and length fields if the user 5376 * passes them in. Instead we'll just flush out the cache for the entire 5377 * LUN. 5378 */ 5379 int 5380 ctl_sync_cache(struct ctl_scsiio *ctsio) 5381 { 5382 struct ctl_lun *lun = CTL_LUN(ctsio); 5383 struct ctl_lba_len_flags *lbalen; 5384 uint64_t starting_lba; 5385 uint32_t block_count; 5386 int retval; 5387 uint8_t byte2; 5388 5389 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5390 5391 retval = 0; 5392 5393 switch (ctsio->cdb[0]) { 5394 case SYNCHRONIZE_CACHE: { 5395 struct scsi_sync_cache *cdb; 5396 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5397 5398 starting_lba = scsi_4btoul(cdb->begin_lba); 5399 block_count = scsi_2btoul(cdb->lb_count); 5400 byte2 = cdb->byte2; 5401 break; 5402 } 5403 case SYNCHRONIZE_CACHE_16: { 5404 struct scsi_sync_cache_16 *cdb; 5405 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5406 5407 starting_lba = scsi_8btou64(cdb->begin_lba); 5408 block_count = scsi_4btoul(cdb->lb_count); 5409 byte2 = cdb->byte2; 5410 break; 5411 } 5412 default: 5413 ctl_set_invalid_opcode(ctsio); 5414 ctl_done((union ctl_io *)ctsio); 5415 goto bailout; 5416 break; /* NOTREACHED */ 5417 } 5418 5419 /* 5420 * We check the LBA and length, but don't do anything with them. 5421 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5422 * get flushed. This check will just help satisfy anyone who wants 5423 * to see an error for an out of range LBA. 5424 */ 5425 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5426 ctl_set_lba_out_of_range(ctsio, 5427 MAX(starting_lba, lun->be_lun->maxlba + 1)); 5428 ctl_done((union ctl_io *)ctsio); 5429 goto bailout; 5430 } 5431 5432 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5433 lbalen->lba = starting_lba; 5434 lbalen->len = block_count; 5435 lbalen->flags = byte2; 5436 retval = lun->backend->config_write((union ctl_io *)ctsio); 5437 5438 bailout: 5439 return (retval); 5440 } 5441 5442 int 5443 ctl_format(struct ctl_scsiio *ctsio) 5444 { 5445 struct scsi_format *cdb; 5446 int length, defect_list_len; 5447 5448 CTL_DEBUG_PRINT(("ctl_format\n")); 5449 5450 cdb = (struct scsi_format *)ctsio->cdb; 5451 5452 length = 0; 5453 if (cdb->byte2 & SF_FMTDATA) { 5454 if (cdb->byte2 & SF_LONGLIST) 5455 length = sizeof(struct scsi_format_header_long); 5456 else 5457 length = sizeof(struct scsi_format_header_short); 5458 } 5459 5460 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5461 && (length > 0)) { 5462 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5463 ctsio->kern_data_len = length; 5464 ctsio->kern_total_len = length; 5465 ctsio->kern_data_resid = 0; 5466 ctsio->kern_rel_offset = 0; 5467 ctsio->kern_sg_entries = 0; 5468 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5469 ctsio->be_move_done = ctl_config_move_done; 5470 ctl_datamove((union ctl_io *)ctsio); 5471 5472 return (CTL_RETVAL_COMPLETE); 5473 } 5474 5475 defect_list_len = 0; 5476 5477 if (cdb->byte2 & SF_FMTDATA) { 5478 if (cdb->byte2 & SF_LONGLIST) { 5479 struct scsi_format_header_long *header; 5480 5481 header = (struct scsi_format_header_long *) 5482 ctsio->kern_data_ptr; 5483 5484 defect_list_len = scsi_4btoul(header->defect_list_len); 5485 if (defect_list_len != 0) { 5486 ctl_set_invalid_field(ctsio, 5487 /*sks_valid*/ 1, 5488 /*command*/ 0, 5489 /*field*/ 2, 5490 /*bit_valid*/ 0, 5491 /*bit*/ 0); 5492 goto bailout; 5493 } 5494 } else { 5495 struct scsi_format_header_short *header; 5496 5497 header = (struct scsi_format_header_short *) 5498 ctsio->kern_data_ptr; 5499 5500 defect_list_len = scsi_2btoul(header->defect_list_len); 5501 if (defect_list_len != 0) { 5502 ctl_set_invalid_field(ctsio, 5503 /*sks_valid*/ 1, 5504 /*command*/ 0, 5505 /*field*/ 2, 5506 /*bit_valid*/ 0, 5507 /*bit*/ 0); 5508 goto bailout; 5509 } 5510 } 5511 } 5512 5513 ctl_set_success(ctsio); 5514 bailout: 5515 5516 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5517 free(ctsio->kern_data_ptr, M_CTL); 5518 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5519 } 5520 5521 ctl_done((union ctl_io *)ctsio); 5522 return (CTL_RETVAL_COMPLETE); 5523 } 5524 5525 int 5526 ctl_read_buffer(struct ctl_scsiio *ctsio) 5527 { 5528 struct ctl_lun *lun = CTL_LUN(ctsio); 5529 uint64_t buffer_offset; 5530 uint32_t len; 5531 uint8_t byte2; 5532 static uint8_t descr[4]; 5533 static uint8_t echo_descr[4] = { 0 }; 5534 5535 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5536 5537 switch (ctsio->cdb[0]) { 5538 case READ_BUFFER: { 5539 struct scsi_read_buffer *cdb; 5540 5541 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5542 buffer_offset = scsi_3btoul(cdb->offset); 5543 len = scsi_3btoul(cdb->length); 5544 byte2 = cdb->byte2; 5545 break; 5546 } 5547 case READ_BUFFER_16: { 5548 struct scsi_read_buffer_16 *cdb; 5549 5550 cdb = (struct scsi_read_buffer_16 *)ctsio->cdb; 5551 buffer_offset = scsi_8btou64(cdb->offset); 5552 len = scsi_4btoul(cdb->length); 5553 byte2 = cdb->byte2; 5554 break; 5555 } 5556 default: /* This shouldn't happen. */ 5557 ctl_set_invalid_opcode(ctsio); 5558 ctl_done((union ctl_io *)ctsio); 5559 return (CTL_RETVAL_COMPLETE); 5560 } 5561 5562 if (buffer_offset > CTL_WRITE_BUFFER_SIZE || 5563 buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5564 ctl_set_invalid_field(ctsio, 5565 /*sks_valid*/ 1, 5566 /*command*/ 1, 5567 /*field*/ 6, 5568 /*bit_valid*/ 0, 5569 /*bit*/ 0); 5570 ctl_done((union ctl_io *)ctsio); 5571 return (CTL_RETVAL_COMPLETE); 5572 } 5573 5574 if ((byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5575 descr[0] = 0; 5576 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5577 ctsio->kern_data_ptr = descr; 5578 len = min(len, sizeof(descr)); 5579 } else if ((byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5580 ctsio->kern_data_ptr = echo_descr; 5581 len = min(len, sizeof(echo_descr)); 5582 } else { 5583 if (lun->write_buffer == NULL) { 5584 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5585 M_CTL, M_WAITOK); 5586 } 5587 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5588 } 5589 ctsio->kern_data_len = len; 5590 ctsio->kern_total_len = len; 5591 ctsio->kern_data_resid = 0; 5592 ctsio->kern_rel_offset = 0; 5593 ctsio->kern_sg_entries = 0; 5594 ctl_set_success(ctsio); 5595 ctsio->be_move_done = ctl_config_move_done; 5596 ctl_datamove((union ctl_io *)ctsio); 5597 return (CTL_RETVAL_COMPLETE); 5598 } 5599 5600 int 5601 ctl_write_buffer(struct ctl_scsiio *ctsio) 5602 { 5603 struct ctl_lun *lun = CTL_LUN(ctsio); 5604 struct scsi_write_buffer *cdb; 5605 int buffer_offset, len; 5606 5607 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5608 5609 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5610 5611 len = scsi_3btoul(cdb->length); 5612 buffer_offset = scsi_3btoul(cdb->offset); 5613 5614 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5615 ctl_set_invalid_field(ctsio, 5616 /*sks_valid*/ 1, 5617 /*command*/ 1, 5618 /*field*/ 6, 5619 /*bit_valid*/ 0, 5620 /*bit*/ 0); 5621 ctl_done((union ctl_io *)ctsio); 5622 return (CTL_RETVAL_COMPLETE); 5623 } 5624 5625 /* 5626 * If we've got a kernel request that hasn't been malloced yet, 5627 * malloc it and tell the caller the data buffer is here. 5628 */ 5629 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5630 if (lun->write_buffer == NULL) { 5631 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5632 M_CTL, M_WAITOK); 5633 } 5634 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5635 ctsio->kern_data_len = len; 5636 ctsio->kern_total_len = len; 5637 ctsio->kern_data_resid = 0; 5638 ctsio->kern_rel_offset = 0; 5639 ctsio->kern_sg_entries = 0; 5640 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5641 ctsio->be_move_done = ctl_config_move_done; 5642 ctl_datamove((union ctl_io *)ctsio); 5643 5644 return (CTL_RETVAL_COMPLETE); 5645 } 5646 5647 ctl_set_success(ctsio); 5648 ctl_done((union ctl_io *)ctsio); 5649 return (CTL_RETVAL_COMPLETE); 5650 } 5651 5652 int 5653 ctl_write_same(struct ctl_scsiio *ctsio) 5654 { 5655 struct ctl_lun *lun = CTL_LUN(ctsio); 5656 struct ctl_lba_len_flags *lbalen; 5657 uint64_t lba; 5658 uint32_t num_blocks; 5659 int len, retval; 5660 uint8_t byte2; 5661 5662 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5663 5664 switch (ctsio->cdb[0]) { 5665 case WRITE_SAME_10: { 5666 struct scsi_write_same_10 *cdb; 5667 5668 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5669 5670 lba = scsi_4btoul(cdb->addr); 5671 num_blocks = scsi_2btoul(cdb->length); 5672 byte2 = cdb->byte2; 5673 break; 5674 } 5675 case WRITE_SAME_16: { 5676 struct scsi_write_same_16 *cdb; 5677 5678 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5679 5680 lba = scsi_8btou64(cdb->addr); 5681 num_blocks = scsi_4btoul(cdb->length); 5682 byte2 = cdb->byte2; 5683 break; 5684 } 5685 default: 5686 /* 5687 * We got a command we don't support. This shouldn't 5688 * happen, commands should be filtered out above us. 5689 */ 5690 ctl_set_invalid_opcode(ctsio); 5691 ctl_done((union ctl_io *)ctsio); 5692 5693 return (CTL_RETVAL_COMPLETE); 5694 break; /* NOTREACHED */ 5695 } 5696 5697 /* ANCHOR flag can be used only together with UNMAP */ 5698 if ((byte2 & SWS_UNMAP) == 0 && (byte2 & SWS_ANCHOR) != 0) { 5699 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5700 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5701 ctl_done((union ctl_io *)ctsio); 5702 return (CTL_RETVAL_COMPLETE); 5703 } 5704 5705 /* 5706 * The first check is to make sure we're in bounds, the second 5707 * check is to catch wrap-around problems. If the lba + num blocks 5708 * is less than the lba, then we've wrapped around and the block 5709 * range is invalid anyway. 5710 */ 5711 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5712 || ((lba + num_blocks) < lba)) { 5713 ctl_set_lba_out_of_range(ctsio, 5714 MAX(lba, lun->be_lun->maxlba + 1)); 5715 ctl_done((union ctl_io *)ctsio); 5716 return (CTL_RETVAL_COMPLETE); 5717 } 5718 5719 /* Zero number of blocks means "to the last logical block" */ 5720 if (num_blocks == 0) { 5721 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5722 ctl_set_invalid_field(ctsio, 5723 /*sks_valid*/ 0, 5724 /*command*/ 1, 5725 /*field*/ 0, 5726 /*bit_valid*/ 0, 5727 /*bit*/ 0); 5728 ctl_done((union ctl_io *)ctsio); 5729 return (CTL_RETVAL_COMPLETE); 5730 } 5731 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5732 } 5733 5734 len = lun->be_lun->blocksize; 5735 5736 /* 5737 * If we've got a kernel request that hasn't been malloced yet, 5738 * malloc it and tell the caller the data buffer is here. 5739 */ 5740 if ((byte2 & SWS_NDOB) == 0 && 5741 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5742 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK); 5743 ctsio->kern_data_len = len; 5744 ctsio->kern_total_len = len; 5745 ctsio->kern_data_resid = 0; 5746 ctsio->kern_rel_offset = 0; 5747 ctsio->kern_sg_entries = 0; 5748 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5749 ctsio->be_move_done = ctl_config_move_done; 5750 ctl_datamove((union ctl_io *)ctsio); 5751 5752 return (CTL_RETVAL_COMPLETE); 5753 } 5754 5755 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5756 lbalen->lba = lba; 5757 lbalen->len = num_blocks; 5758 lbalen->flags = byte2; 5759 retval = lun->backend->config_write((union ctl_io *)ctsio); 5760 5761 return (retval); 5762 } 5763 5764 int 5765 ctl_unmap(struct ctl_scsiio *ctsio) 5766 { 5767 struct ctl_lun *lun = CTL_LUN(ctsio); 5768 struct scsi_unmap *cdb; 5769 struct ctl_ptr_len_flags *ptrlen; 5770 struct scsi_unmap_header *hdr; 5771 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5772 uint64_t lba; 5773 uint32_t num_blocks; 5774 int len, retval; 5775 uint8_t byte2; 5776 5777 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5778 5779 cdb = (struct scsi_unmap *)ctsio->cdb; 5780 len = scsi_2btoul(cdb->length); 5781 byte2 = cdb->byte2; 5782 5783 /* 5784 * If we've got a kernel request that hasn't been malloced yet, 5785 * malloc it and tell the caller the data buffer is here. 5786 */ 5787 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5788 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK); 5789 ctsio->kern_data_len = len; 5790 ctsio->kern_total_len = len; 5791 ctsio->kern_data_resid = 0; 5792 ctsio->kern_rel_offset = 0; 5793 ctsio->kern_sg_entries = 0; 5794 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5795 ctsio->be_move_done = ctl_config_move_done; 5796 ctl_datamove((union ctl_io *)ctsio); 5797 5798 return (CTL_RETVAL_COMPLETE); 5799 } 5800 5801 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5802 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5803 if (len < sizeof (*hdr) || 5804 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5805 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5806 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5807 ctl_set_invalid_field(ctsio, 5808 /*sks_valid*/ 0, 5809 /*command*/ 0, 5810 /*field*/ 0, 5811 /*bit_valid*/ 0, 5812 /*bit*/ 0); 5813 goto done; 5814 } 5815 len = scsi_2btoul(hdr->desc_length); 5816 buf = (struct scsi_unmap_desc *)(hdr + 1); 5817 end = buf + len / sizeof(*buf); 5818 5819 endnz = buf; 5820 for (range = buf; range < end; range++) { 5821 lba = scsi_8btou64(range->lba); 5822 num_blocks = scsi_4btoul(range->length); 5823 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5824 || ((lba + num_blocks) < lba)) { 5825 ctl_set_lba_out_of_range(ctsio, 5826 MAX(lba, lun->be_lun->maxlba + 1)); 5827 ctl_done((union ctl_io *)ctsio); 5828 return (CTL_RETVAL_COMPLETE); 5829 } 5830 if (num_blocks != 0) 5831 endnz = range + 1; 5832 } 5833 5834 /* 5835 * Block backend can not handle zero last range. 5836 * Filter it out and return if there is nothing left. 5837 */ 5838 len = (uint8_t *)endnz - (uint8_t *)buf; 5839 if (len == 0) { 5840 ctl_set_success(ctsio); 5841 goto done; 5842 } 5843 5844 mtx_lock(&lun->lun_lock); 5845 ptrlen = (struct ctl_ptr_len_flags *) 5846 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5847 ptrlen->ptr = (void *)buf; 5848 ptrlen->len = len; 5849 ptrlen->flags = byte2; 5850 ctl_check_blocked(lun); 5851 mtx_unlock(&lun->lun_lock); 5852 5853 retval = lun->backend->config_write((union ctl_io *)ctsio); 5854 return (retval); 5855 5856 done: 5857 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5858 free(ctsio->kern_data_ptr, M_CTL); 5859 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5860 } 5861 ctl_done((union ctl_io *)ctsio); 5862 return (CTL_RETVAL_COMPLETE); 5863 } 5864 5865 int 5866 ctl_default_page_handler(struct ctl_scsiio *ctsio, 5867 struct ctl_page_index *page_index, uint8_t *page_ptr) 5868 { 5869 struct ctl_lun *lun = CTL_LUN(ctsio); 5870 uint8_t *current_cp; 5871 int set_ua; 5872 uint32_t initidx; 5873 5874 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5875 set_ua = 0; 5876 5877 current_cp = (page_index->page_data + (page_index->page_len * 5878 CTL_PAGE_CURRENT)); 5879 5880 mtx_lock(&lun->lun_lock); 5881 if (memcmp(current_cp, page_ptr, page_index->page_len)) { 5882 memcpy(current_cp, page_ptr, page_index->page_len); 5883 set_ua = 1; 5884 } 5885 if (set_ua != 0) 5886 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 5887 mtx_unlock(&lun->lun_lock); 5888 if (set_ua) { 5889 ctl_isc_announce_mode(lun, 5890 ctl_get_initindex(&ctsio->io_hdr.nexus), 5891 page_index->page_code, page_index->subpage); 5892 } 5893 return (CTL_RETVAL_COMPLETE); 5894 } 5895 5896 static void 5897 ctl_ie_timer(void *arg) 5898 { 5899 struct ctl_lun *lun = arg; 5900 uint64_t t; 5901 5902 if (lun->ie_asc == 0) 5903 return; 5904 5905 if (lun->MODE_IE.mrie == SIEP_MRIE_UA) 5906 ctl_est_ua_all(lun, -1, CTL_UA_IE); 5907 else 5908 lun->ie_reported = 0; 5909 5910 if (lun->ie_reportcnt < scsi_4btoul(lun->MODE_IE.report_count)) { 5911 lun->ie_reportcnt++; 5912 t = scsi_4btoul(lun->MODE_IE.interval_timer); 5913 if (t == 0 || t == UINT32_MAX) 5914 t = 3000; /* 5 min */ 5915 callout_schedule(&lun->ie_callout, t * hz / 10); 5916 } 5917 } 5918 5919 int 5920 ctl_ie_page_handler(struct ctl_scsiio *ctsio, 5921 struct ctl_page_index *page_index, uint8_t *page_ptr) 5922 { 5923 struct ctl_lun *lun = CTL_LUN(ctsio); 5924 struct scsi_info_exceptions_page *pg; 5925 uint64_t t; 5926 5927 (void)ctl_default_page_handler(ctsio, page_index, page_ptr); 5928 5929 pg = (struct scsi_info_exceptions_page *)page_ptr; 5930 mtx_lock(&lun->lun_lock); 5931 if (pg->info_flags & SIEP_FLAGS_TEST) { 5932 lun->ie_asc = 0x5d; 5933 lun->ie_ascq = 0xff; 5934 if (pg->mrie == SIEP_MRIE_UA) { 5935 ctl_est_ua_all(lun, -1, CTL_UA_IE); 5936 lun->ie_reported = 1; 5937 } else { 5938 ctl_clr_ua_all(lun, -1, CTL_UA_IE); 5939 lun->ie_reported = -1; 5940 } 5941 lun->ie_reportcnt = 1; 5942 if (lun->ie_reportcnt < scsi_4btoul(pg->report_count)) { 5943 lun->ie_reportcnt++; 5944 t = scsi_4btoul(pg->interval_timer); 5945 if (t == 0 || t == UINT32_MAX) 5946 t = 3000; /* 5 min */ 5947 callout_reset(&lun->ie_callout, t * hz / 10, 5948 ctl_ie_timer, lun); 5949 } 5950 } else { 5951 lun->ie_asc = 0; 5952 lun->ie_ascq = 0; 5953 lun->ie_reported = 1; 5954 ctl_clr_ua_all(lun, -1, CTL_UA_IE); 5955 lun->ie_reportcnt = UINT32_MAX; 5956 callout_stop(&lun->ie_callout); 5957 } 5958 mtx_unlock(&lun->lun_lock); 5959 return (CTL_RETVAL_COMPLETE); 5960 } 5961 5962 static int 5963 ctl_do_mode_select(union ctl_io *io) 5964 { 5965 struct ctl_lun *lun = CTL_LUN(io); 5966 struct scsi_mode_page_header *page_header; 5967 struct ctl_page_index *page_index; 5968 struct ctl_scsiio *ctsio; 5969 int page_len, page_len_offset, page_len_size; 5970 union ctl_modepage_info *modepage_info; 5971 uint16_t *len_left, *len_used; 5972 int retval, i; 5973 5974 ctsio = &io->scsiio; 5975 page_index = NULL; 5976 page_len = 0; 5977 5978 modepage_info = (union ctl_modepage_info *) 5979 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 5980 len_left = &modepage_info->header.len_left; 5981 len_used = &modepage_info->header.len_used; 5982 5983 do_next_page: 5984 5985 page_header = (struct scsi_mode_page_header *) 5986 (ctsio->kern_data_ptr + *len_used); 5987 5988 if (*len_left == 0) { 5989 free(ctsio->kern_data_ptr, M_CTL); 5990 ctl_set_success(ctsio); 5991 ctl_done((union ctl_io *)ctsio); 5992 return (CTL_RETVAL_COMPLETE); 5993 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 5994 5995 free(ctsio->kern_data_ptr, M_CTL); 5996 ctl_set_param_len_error(ctsio); 5997 ctl_done((union ctl_io *)ctsio); 5998 return (CTL_RETVAL_COMPLETE); 5999 6000 } else if ((page_header->page_code & SMPH_SPF) 6001 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6002 6003 free(ctsio->kern_data_ptr, M_CTL); 6004 ctl_set_param_len_error(ctsio); 6005 ctl_done((union ctl_io *)ctsio); 6006 return (CTL_RETVAL_COMPLETE); 6007 } 6008 6009 6010 /* 6011 * XXX KDM should we do something with the block descriptor? 6012 */ 6013 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6014 page_index = &lun->mode_pages.index[i]; 6015 if (lun->be_lun->lun_type == T_DIRECT && 6016 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6017 continue; 6018 if (lun->be_lun->lun_type == T_PROCESSOR && 6019 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6020 continue; 6021 if (lun->be_lun->lun_type == T_CDROM && 6022 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6023 continue; 6024 6025 if ((page_index->page_code & SMPH_PC_MASK) != 6026 (page_header->page_code & SMPH_PC_MASK)) 6027 continue; 6028 6029 /* 6030 * If neither page has a subpage code, then we've got a 6031 * match. 6032 */ 6033 if (((page_index->page_code & SMPH_SPF) == 0) 6034 && ((page_header->page_code & SMPH_SPF) == 0)) { 6035 page_len = page_header->page_length; 6036 break; 6037 } 6038 6039 /* 6040 * If both pages have subpages, then the subpage numbers 6041 * have to match. 6042 */ 6043 if ((page_index->page_code & SMPH_SPF) 6044 && (page_header->page_code & SMPH_SPF)) { 6045 struct scsi_mode_page_header_sp *sph; 6046 6047 sph = (struct scsi_mode_page_header_sp *)page_header; 6048 if (page_index->subpage == sph->subpage) { 6049 page_len = scsi_2btoul(sph->page_length); 6050 break; 6051 } 6052 } 6053 } 6054 6055 /* 6056 * If we couldn't find the page, or if we don't have a mode select 6057 * handler for it, send back an error to the user. 6058 */ 6059 if ((i >= CTL_NUM_MODE_PAGES) 6060 || (page_index->select_handler == NULL)) { 6061 ctl_set_invalid_field(ctsio, 6062 /*sks_valid*/ 1, 6063 /*command*/ 0, 6064 /*field*/ *len_used, 6065 /*bit_valid*/ 0, 6066 /*bit*/ 0); 6067 free(ctsio->kern_data_ptr, M_CTL); 6068 ctl_done((union ctl_io *)ctsio); 6069 return (CTL_RETVAL_COMPLETE); 6070 } 6071 6072 if (page_index->page_code & SMPH_SPF) { 6073 page_len_offset = 2; 6074 page_len_size = 2; 6075 } else { 6076 page_len_size = 1; 6077 page_len_offset = 1; 6078 } 6079 6080 /* 6081 * If the length the initiator gives us isn't the one we specify in 6082 * the mode page header, or if they didn't specify enough data in 6083 * the CDB to avoid truncating this page, kick out the request. 6084 */ 6085 if (page_len != page_index->page_len - page_len_offset - page_len_size) { 6086 ctl_set_invalid_field(ctsio, 6087 /*sks_valid*/ 1, 6088 /*command*/ 0, 6089 /*field*/ *len_used + page_len_offset, 6090 /*bit_valid*/ 0, 6091 /*bit*/ 0); 6092 free(ctsio->kern_data_ptr, M_CTL); 6093 ctl_done((union ctl_io *)ctsio); 6094 return (CTL_RETVAL_COMPLETE); 6095 } 6096 if (*len_left < page_index->page_len) { 6097 free(ctsio->kern_data_ptr, M_CTL); 6098 ctl_set_param_len_error(ctsio); 6099 ctl_done((union ctl_io *)ctsio); 6100 return (CTL_RETVAL_COMPLETE); 6101 } 6102 6103 /* 6104 * Run through the mode page, checking to make sure that the bits 6105 * the user changed are actually legal for him to change. 6106 */ 6107 for (i = 0; i < page_index->page_len; i++) { 6108 uint8_t *user_byte, *change_mask, *current_byte; 6109 int bad_bit; 6110 int j; 6111 6112 user_byte = (uint8_t *)page_header + i; 6113 change_mask = page_index->page_data + 6114 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6115 current_byte = page_index->page_data + 6116 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6117 6118 /* 6119 * Check to see whether the user set any bits in this byte 6120 * that he is not allowed to set. 6121 */ 6122 if ((*user_byte & ~(*change_mask)) == 6123 (*current_byte & ~(*change_mask))) 6124 continue; 6125 6126 /* 6127 * Go through bit by bit to determine which one is illegal. 6128 */ 6129 bad_bit = 0; 6130 for (j = 7; j >= 0; j--) { 6131 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6132 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6133 bad_bit = i; 6134 break; 6135 } 6136 } 6137 ctl_set_invalid_field(ctsio, 6138 /*sks_valid*/ 1, 6139 /*command*/ 0, 6140 /*field*/ *len_used + i, 6141 /*bit_valid*/ 1, 6142 /*bit*/ bad_bit); 6143 free(ctsio->kern_data_ptr, M_CTL); 6144 ctl_done((union ctl_io *)ctsio); 6145 return (CTL_RETVAL_COMPLETE); 6146 } 6147 6148 /* 6149 * Decrement these before we call the page handler, since we may 6150 * end up getting called back one way or another before the handler 6151 * returns to this context. 6152 */ 6153 *len_left -= page_index->page_len; 6154 *len_used += page_index->page_len; 6155 6156 retval = page_index->select_handler(ctsio, page_index, 6157 (uint8_t *)page_header); 6158 6159 /* 6160 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6161 * wait until this queued command completes to finish processing 6162 * the mode page. If it returns anything other than 6163 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6164 * already set the sense information, freed the data pointer, and 6165 * completed the io for us. 6166 */ 6167 if (retval != CTL_RETVAL_COMPLETE) 6168 goto bailout_no_done; 6169 6170 /* 6171 * If the initiator sent us more than one page, parse the next one. 6172 */ 6173 if (*len_left > 0) 6174 goto do_next_page; 6175 6176 ctl_set_success(ctsio); 6177 free(ctsio->kern_data_ptr, M_CTL); 6178 ctl_done((union ctl_io *)ctsio); 6179 6180 bailout_no_done: 6181 6182 return (CTL_RETVAL_COMPLETE); 6183 6184 } 6185 6186 int 6187 ctl_mode_select(struct ctl_scsiio *ctsio) 6188 { 6189 struct ctl_lun *lun = CTL_LUN(ctsio); 6190 union ctl_modepage_info *modepage_info; 6191 int bd_len, i, header_size, param_len, pf, rtd, sp; 6192 uint32_t initidx; 6193 6194 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6195 switch (ctsio->cdb[0]) { 6196 case MODE_SELECT_6: { 6197 struct scsi_mode_select_6 *cdb; 6198 6199 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6200 6201 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6202 rtd = (cdb->byte2 & SMS_RTD) ? 1 : 0; 6203 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6204 param_len = cdb->length; 6205 header_size = sizeof(struct scsi_mode_header_6); 6206 break; 6207 } 6208 case MODE_SELECT_10: { 6209 struct scsi_mode_select_10 *cdb; 6210 6211 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6212 6213 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6214 rtd = (cdb->byte2 & SMS_RTD) ? 1 : 0; 6215 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6216 param_len = scsi_2btoul(cdb->length); 6217 header_size = sizeof(struct scsi_mode_header_10); 6218 break; 6219 } 6220 default: 6221 ctl_set_invalid_opcode(ctsio); 6222 ctl_done((union ctl_io *)ctsio); 6223 return (CTL_RETVAL_COMPLETE); 6224 } 6225 6226 if (rtd) { 6227 if (param_len != 0) { 6228 ctl_set_invalid_field(ctsio, /*sks_valid*/ 0, 6229 /*command*/ 1, /*field*/ 0, 6230 /*bit_valid*/ 0, /*bit*/ 0); 6231 ctl_done((union ctl_io *)ctsio); 6232 return (CTL_RETVAL_COMPLETE); 6233 } 6234 6235 /* Revert to defaults. */ 6236 ctl_init_page_index(lun); 6237 mtx_lock(&lun->lun_lock); 6238 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 6239 mtx_unlock(&lun->lun_lock); 6240 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6241 ctl_isc_announce_mode(lun, -1, 6242 lun->mode_pages.index[i].page_code & SMPH_PC_MASK, 6243 lun->mode_pages.index[i].subpage); 6244 } 6245 ctl_set_success(ctsio); 6246 ctl_done((union ctl_io *)ctsio); 6247 return (CTL_RETVAL_COMPLETE); 6248 } 6249 6250 /* 6251 * From SPC-3: 6252 * "A parameter list length of zero indicates that the Data-Out Buffer 6253 * shall be empty. This condition shall not be considered as an error." 6254 */ 6255 if (param_len == 0) { 6256 ctl_set_success(ctsio); 6257 ctl_done((union ctl_io *)ctsio); 6258 return (CTL_RETVAL_COMPLETE); 6259 } 6260 6261 /* 6262 * Since we'll hit this the first time through, prior to 6263 * allocation, we don't need to free a data buffer here. 6264 */ 6265 if (param_len < header_size) { 6266 ctl_set_param_len_error(ctsio); 6267 ctl_done((union ctl_io *)ctsio); 6268 return (CTL_RETVAL_COMPLETE); 6269 } 6270 6271 /* 6272 * Allocate the data buffer and grab the user's data. In theory, 6273 * we shouldn't have to sanity check the parameter list length here 6274 * because the maximum size is 64K. We should be able to malloc 6275 * that much without too many problems. 6276 */ 6277 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6278 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6279 ctsio->kern_data_len = param_len; 6280 ctsio->kern_total_len = param_len; 6281 ctsio->kern_data_resid = 0; 6282 ctsio->kern_rel_offset = 0; 6283 ctsio->kern_sg_entries = 0; 6284 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6285 ctsio->be_move_done = ctl_config_move_done; 6286 ctl_datamove((union ctl_io *)ctsio); 6287 6288 return (CTL_RETVAL_COMPLETE); 6289 } 6290 6291 switch (ctsio->cdb[0]) { 6292 case MODE_SELECT_6: { 6293 struct scsi_mode_header_6 *mh6; 6294 6295 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6296 bd_len = mh6->blk_desc_len; 6297 break; 6298 } 6299 case MODE_SELECT_10: { 6300 struct scsi_mode_header_10 *mh10; 6301 6302 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6303 bd_len = scsi_2btoul(mh10->blk_desc_len); 6304 break; 6305 } 6306 default: 6307 panic("%s: Invalid CDB type %#x", __func__, ctsio->cdb[0]); 6308 } 6309 6310 if (param_len < (header_size + bd_len)) { 6311 free(ctsio->kern_data_ptr, M_CTL); 6312 ctl_set_param_len_error(ctsio); 6313 ctl_done((union ctl_io *)ctsio); 6314 return (CTL_RETVAL_COMPLETE); 6315 } 6316 6317 /* 6318 * Set the IO_CONT flag, so that if this I/O gets passed to 6319 * ctl_config_write_done(), it'll get passed back to 6320 * ctl_do_mode_select() for further processing, or completion if 6321 * we're all done. 6322 */ 6323 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6324 ctsio->io_cont = ctl_do_mode_select; 6325 6326 modepage_info = (union ctl_modepage_info *) 6327 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6328 memset(modepage_info, 0, sizeof(*modepage_info)); 6329 modepage_info->header.len_left = param_len - header_size - bd_len; 6330 modepage_info->header.len_used = header_size + bd_len; 6331 6332 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6333 } 6334 6335 int 6336 ctl_mode_sense(struct ctl_scsiio *ctsio) 6337 { 6338 struct ctl_lun *lun = CTL_LUN(ctsio); 6339 int pc, page_code, dbd, llba, subpage; 6340 int alloc_len, page_len, header_len, total_len; 6341 struct scsi_mode_block_descr *block_desc; 6342 struct ctl_page_index *page_index; 6343 6344 dbd = 0; 6345 llba = 0; 6346 block_desc = NULL; 6347 6348 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6349 6350 switch (ctsio->cdb[0]) { 6351 case MODE_SENSE_6: { 6352 struct scsi_mode_sense_6 *cdb; 6353 6354 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6355 6356 header_len = sizeof(struct scsi_mode_hdr_6); 6357 if (cdb->byte2 & SMS_DBD) 6358 dbd = 1; 6359 else 6360 header_len += sizeof(struct scsi_mode_block_descr); 6361 6362 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6363 page_code = cdb->page & SMS_PAGE_CODE; 6364 subpage = cdb->subpage; 6365 alloc_len = cdb->length; 6366 break; 6367 } 6368 case MODE_SENSE_10: { 6369 struct scsi_mode_sense_10 *cdb; 6370 6371 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6372 6373 header_len = sizeof(struct scsi_mode_hdr_10); 6374 6375 if (cdb->byte2 & SMS_DBD) 6376 dbd = 1; 6377 else 6378 header_len += sizeof(struct scsi_mode_block_descr); 6379 if (cdb->byte2 & SMS10_LLBAA) 6380 llba = 1; 6381 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6382 page_code = cdb->page & SMS_PAGE_CODE; 6383 subpage = cdb->subpage; 6384 alloc_len = scsi_2btoul(cdb->length); 6385 break; 6386 } 6387 default: 6388 ctl_set_invalid_opcode(ctsio); 6389 ctl_done((union ctl_io *)ctsio); 6390 return (CTL_RETVAL_COMPLETE); 6391 break; /* NOTREACHED */ 6392 } 6393 6394 /* 6395 * We have to make a first pass through to calculate the size of 6396 * the pages that match the user's query. Then we allocate enough 6397 * memory to hold it, and actually copy the data into the buffer. 6398 */ 6399 switch (page_code) { 6400 case SMS_ALL_PAGES_PAGE: { 6401 u_int i; 6402 6403 page_len = 0; 6404 6405 /* 6406 * At the moment, values other than 0 and 0xff here are 6407 * reserved according to SPC-3. 6408 */ 6409 if ((subpage != SMS_SUBPAGE_PAGE_0) 6410 && (subpage != SMS_SUBPAGE_ALL)) { 6411 ctl_set_invalid_field(ctsio, 6412 /*sks_valid*/ 1, 6413 /*command*/ 1, 6414 /*field*/ 3, 6415 /*bit_valid*/ 0, 6416 /*bit*/ 0); 6417 ctl_done((union ctl_io *)ctsio); 6418 return (CTL_RETVAL_COMPLETE); 6419 } 6420 6421 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6422 page_index = &lun->mode_pages.index[i]; 6423 6424 /* Make sure the page is supported for this dev type */ 6425 if (lun->be_lun->lun_type == T_DIRECT && 6426 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6427 continue; 6428 if (lun->be_lun->lun_type == T_PROCESSOR && 6429 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6430 continue; 6431 if (lun->be_lun->lun_type == T_CDROM && 6432 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6433 continue; 6434 6435 /* 6436 * We don't use this subpage if the user didn't 6437 * request all subpages. 6438 */ 6439 if ((page_index->subpage != 0) 6440 && (subpage == SMS_SUBPAGE_PAGE_0)) 6441 continue; 6442 6443 #if 0 6444 printf("found page %#x len %d\n", 6445 page_index->page_code & SMPH_PC_MASK, 6446 page_index->page_len); 6447 #endif 6448 page_len += page_index->page_len; 6449 } 6450 break; 6451 } 6452 default: { 6453 u_int i; 6454 6455 page_len = 0; 6456 6457 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6458 page_index = &lun->mode_pages.index[i]; 6459 6460 /* Make sure the page is supported for this dev type */ 6461 if (lun->be_lun->lun_type == T_DIRECT && 6462 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6463 continue; 6464 if (lun->be_lun->lun_type == T_PROCESSOR && 6465 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6466 continue; 6467 if (lun->be_lun->lun_type == T_CDROM && 6468 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6469 continue; 6470 6471 /* Look for the right page code */ 6472 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6473 continue; 6474 6475 /* Look for the right subpage or the subpage wildcard*/ 6476 if ((page_index->subpage != subpage) 6477 && (subpage != SMS_SUBPAGE_ALL)) 6478 continue; 6479 6480 #if 0 6481 printf("found page %#x len %d\n", 6482 page_index->page_code & SMPH_PC_MASK, 6483 page_index->page_len); 6484 #endif 6485 6486 page_len += page_index->page_len; 6487 } 6488 6489 if (page_len == 0) { 6490 ctl_set_invalid_field(ctsio, 6491 /*sks_valid*/ 1, 6492 /*command*/ 1, 6493 /*field*/ 2, 6494 /*bit_valid*/ 1, 6495 /*bit*/ 5); 6496 ctl_done((union ctl_io *)ctsio); 6497 return (CTL_RETVAL_COMPLETE); 6498 } 6499 break; 6500 } 6501 } 6502 6503 total_len = header_len + page_len; 6504 #if 0 6505 printf("header_len = %d, page_len = %d, total_len = %d\n", 6506 header_len, page_len, total_len); 6507 #endif 6508 6509 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6510 ctsio->kern_sg_entries = 0; 6511 ctsio->kern_data_resid = 0; 6512 ctsio->kern_rel_offset = 0; 6513 if (total_len < alloc_len) { 6514 ctsio->residual = alloc_len - total_len; 6515 ctsio->kern_data_len = total_len; 6516 ctsio->kern_total_len = total_len; 6517 } else { 6518 ctsio->residual = 0; 6519 ctsio->kern_data_len = alloc_len; 6520 ctsio->kern_total_len = alloc_len; 6521 } 6522 6523 switch (ctsio->cdb[0]) { 6524 case MODE_SENSE_6: { 6525 struct scsi_mode_hdr_6 *header; 6526 6527 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6528 6529 header->datalen = MIN(total_len - 1, 254); 6530 if (lun->be_lun->lun_type == T_DIRECT) { 6531 header->dev_specific = 0x10; /* DPOFUA */ 6532 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6533 (lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) 6534 header->dev_specific |= 0x80; /* WP */ 6535 } 6536 if (dbd) 6537 header->block_descr_len = 0; 6538 else 6539 header->block_descr_len = 6540 sizeof(struct scsi_mode_block_descr); 6541 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6542 break; 6543 } 6544 case MODE_SENSE_10: { 6545 struct scsi_mode_hdr_10 *header; 6546 int datalen; 6547 6548 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6549 6550 datalen = MIN(total_len - 2, 65533); 6551 scsi_ulto2b(datalen, header->datalen); 6552 if (lun->be_lun->lun_type == T_DIRECT) { 6553 header->dev_specific = 0x10; /* DPOFUA */ 6554 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6555 (lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) 6556 header->dev_specific |= 0x80; /* WP */ 6557 } 6558 if (dbd) 6559 scsi_ulto2b(0, header->block_descr_len); 6560 else 6561 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6562 header->block_descr_len); 6563 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6564 break; 6565 } 6566 default: 6567 panic("%s: Invalid CDB type %#x", __func__, ctsio->cdb[0]); 6568 } 6569 6570 /* 6571 * If we've got a disk, use its blocksize in the block 6572 * descriptor. Otherwise, just set it to 0. 6573 */ 6574 if (dbd == 0) { 6575 if (lun->be_lun->lun_type == T_DIRECT) 6576 scsi_ulto3b(lun->be_lun->blocksize, 6577 block_desc->block_len); 6578 else 6579 scsi_ulto3b(0, block_desc->block_len); 6580 } 6581 6582 switch (page_code) { 6583 case SMS_ALL_PAGES_PAGE: { 6584 int i, data_used; 6585 6586 data_used = header_len; 6587 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6588 struct ctl_page_index *page_index; 6589 6590 page_index = &lun->mode_pages.index[i]; 6591 if (lun->be_lun->lun_type == T_DIRECT && 6592 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6593 continue; 6594 if (lun->be_lun->lun_type == T_PROCESSOR && 6595 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6596 continue; 6597 if (lun->be_lun->lun_type == T_CDROM && 6598 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6599 continue; 6600 6601 /* 6602 * We don't use this subpage if the user didn't 6603 * request all subpages. We already checked (above) 6604 * to make sure the user only specified a subpage 6605 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6606 */ 6607 if ((page_index->subpage != 0) 6608 && (subpage == SMS_SUBPAGE_PAGE_0)) 6609 continue; 6610 6611 /* 6612 * Call the handler, if it exists, to update the 6613 * page to the latest values. 6614 */ 6615 if (page_index->sense_handler != NULL) 6616 page_index->sense_handler(ctsio, page_index,pc); 6617 6618 memcpy(ctsio->kern_data_ptr + data_used, 6619 page_index->page_data + 6620 (page_index->page_len * pc), 6621 page_index->page_len); 6622 data_used += page_index->page_len; 6623 } 6624 break; 6625 } 6626 default: { 6627 int i, data_used; 6628 6629 data_used = header_len; 6630 6631 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6632 struct ctl_page_index *page_index; 6633 6634 page_index = &lun->mode_pages.index[i]; 6635 6636 /* Look for the right page code */ 6637 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6638 continue; 6639 6640 /* Look for the right subpage or the subpage wildcard*/ 6641 if ((page_index->subpage != subpage) 6642 && (subpage != SMS_SUBPAGE_ALL)) 6643 continue; 6644 6645 /* Make sure the page is supported for this dev type */ 6646 if (lun->be_lun->lun_type == T_DIRECT && 6647 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6648 continue; 6649 if (lun->be_lun->lun_type == T_PROCESSOR && 6650 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6651 continue; 6652 if (lun->be_lun->lun_type == T_CDROM && 6653 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6654 continue; 6655 6656 /* 6657 * Call the handler, if it exists, to update the 6658 * page to the latest values. 6659 */ 6660 if (page_index->sense_handler != NULL) 6661 page_index->sense_handler(ctsio, page_index,pc); 6662 6663 memcpy(ctsio->kern_data_ptr + data_used, 6664 page_index->page_data + 6665 (page_index->page_len * pc), 6666 page_index->page_len); 6667 data_used += page_index->page_len; 6668 } 6669 break; 6670 } 6671 } 6672 6673 ctl_set_success(ctsio); 6674 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6675 ctsio->be_move_done = ctl_config_move_done; 6676 ctl_datamove((union ctl_io *)ctsio); 6677 return (CTL_RETVAL_COMPLETE); 6678 } 6679 6680 int 6681 ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6682 struct ctl_page_index *page_index, 6683 int pc) 6684 { 6685 struct ctl_lun *lun = CTL_LUN(ctsio); 6686 struct scsi_log_param_header *phdr; 6687 uint8_t *data; 6688 uint64_t val; 6689 6690 data = page_index->page_data; 6691 6692 if (lun->backend->lun_attr != NULL && 6693 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6694 != UINT64_MAX) { 6695 phdr = (struct scsi_log_param_header *)data; 6696 scsi_ulto2b(0x0001, phdr->param_code); 6697 phdr->param_control = SLP_LBIN | SLP_LP; 6698 phdr->param_len = 8; 6699 data = (uint8_t *)(phdr + 1); 6700 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6701 data[4] = 0x02; /* per-pool */ 6702 data += phdr->param_len; 6703 } 6704 6705 if (lun->backend->lun_attr != NULL && 6706 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6707 != UINT64_MAX) { 6708 phdr = (struct scsi_log_param_header *)data; 6709 scsi_ulto2b(0x0002, phdr->param_code); 6710 phdr->param_control = SLP_LBIN | SLP_LP; 6711 phdr->param_len = 8; 6712 data = (uint8_t *)(phdr + 1); 6713 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6714 data[4] = 0x01; /* per-LUN */ 6715 data += phdr->param_len; 6716 } 6717 6718 if (lun->backend->lun_attr != NULL && 6719 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6720 != UINT64_MAX) { 6721 phdr = (struct scsi_log_param_header *)data; 6722 scsi_ulto2b(0x00f1, phdr->param_code); 6723 phdr->param_control = SLP_LBIN | SLP_LP; 6724 phdr->param_len = 8; 6725 data = (uint8_t *)(phdr + 1); 6726 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6727 data[4] = 0x02; /* per-pool */ 6728 data += phdr->param_len; 6729 } 6730 6731 if (lun->backend->lun_attr != NULL && 6732 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 6733 != UINT64_MAX) { 6734 phdr = (struct scsi_log_param_header *)data; 6735 scsi_ulto2b(0x00f2, phdr->param_code); 6736 phdr->param_control = SLP_LBIN | SLP_LP; 6737 phdr->param_len = 8; 6738 data = (uint8_t *)(phdr + 1); 6739 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6740 data[4] = 0x02; /* per-pool */ 6741 data += phdr->param_len; 6742 } 6743 6744 page_index->page_len = data - page_index->page_data; 6745 return (0); 6746 } 6747 6748 int 6749 ctl_sap_log_sense_handler(struct ctl_scsiio *ctsio, 6750 struct ctl_page_index *page_index, 6751 int pc) 6752 { 6753 struct ctl_lun *lun = CTL_LUN(ctsio); 6754 struct stat_page *data; 6755 struct bintime *t; 6756 6757 data = (struct stat_page *)page_index->page_data; 6758 6759 scsi_ulto2b(SLP_SAP, data->sap.hdr.param_code); 6760 data->sap.hdr.param_control = SLP_LBIN; 6761 data->sap.hdr.param_len = sizeof(struct scsi_log_stat_and_perf) - 6762 sizeof(struct scsi_log_param_header); 6763 scsi_u64to8b(lun->stats.operations[CTL_STATS_READ], 6764 data->sap.read_num); 6765 scsi_u64to8b(lun->stats.operations[CTL_STATS_WRITE], 6766 data->sap.write_num); 6767 if (lun->be_lun->blocksize > 0) { 6768 scsi_u64to8b(lun->stats.bytes[CTL_STATS_WRITE] / 6769 lun->be_lun->blocksize, data->sap.recvieved_lba); 6770 scsi_u64to8b(lun->stats.bytes[CTL_STATS_READ] / 6771 lun->be_lun->blocksize, data->sap.transmitted_lba); 6772 } 6773 t = &lun->stats.time[CTL_STATS_READ]; 6774 scsi_u64to8b((uint64_t)t->sec * 1000 + t->frac / (UINT64_MAX / 1000), 6775 data->sap.read_int); 6776 t = &lun->stats.time[CTL_STATS_WRITE]; 6777 scsi_u64to8b((uint64_t)t->sec * 1000 + t->frac / (UINT64_MAX / 1000), 6778 data->sap.write_int); 6779 scsi_u64to8b(0, data->sap.weighted_num); 6780 scsi_u64to8b(0, data->sap.weighted_int); 6781 scsi_ulto2b(SLP_IT, data->it.hdr.param_code); 6782 data->it.hdr.param_control = SLP_LBIN; 6783 data->it.hdr.param_len = sizeof(struct scsi_log_idle_time) - 6784 sizeof(struct scsi_log_param_header); 6785 #ifdef CTL_TIME_IO 6786 scsi_u64to8b(lun->idle_time / SBT_1MS, data->it.idle_int); 6787 #endif 6788 scsi_ulto2b(SLP_TI, data->ti.hdr.param_code); 6789 data->it.hdr.param_control = SLP_LBIN; 6790 data->ti.hdr.param_len = sizeof(struct scsi_log_time_interval) - 6791 sizeof(struct scsi_log_param_header); 6792 scsi_ulto4b(3, data->ti.exponent); 6793 scsi_ulto4b(1, data->ti.integer); 6794 return (0); 6795 } 6796 6797 int 6798 ctl_ie_log_sense_handler(struct ctl_scsiio *ctsio, 6799 struct ctl_page_index *page_index, 6800 int pc) 6801 { 6802 struct ctl_lun *lun = CTL_LUN(ctsio); 6803 struct scsi_log_informational_exceptions *data; 6804 6805 data = (struct scsi_log_informational_exceptions *)page_index->page_data; 6806 6807 scsi_ulto2b(SLP_IE_GEN, data->hdr.param_code); 6808 data->hdr.param_control = SLP_LBIN; 6809 data->hdr.param_len = sizeof(struct scsi_log_informational_exceptions) - 6810 sizeof(struct scsi_log_param_header); 6811 data->ie_asc = lun->ie_asc; 6812 data->ie_ascq = lun->ie_ascq; 6813 data->temperature = 0xff; 6814 return (0); 6815 } 6816 6817 int 6818 ctl_log_sense(struct ctl_scsiio *ctsio) 6819 { 6820 struct ctl_lun *lun = CTL_LUN(ctsio); 6821 int i, pc, page_code, subpage; 6822 int alloc_len, total_len; 6823 struct ctl_page_index *page_index; 6824 struct scsi_log_sense *cdb; 6825 struct scsi_log_header *header; 6826 6827 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 6828 6829 cdb = (struct scsi_log_sense *)ctsio->cdb; 6830 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 6831 page_code = cdb->page & SLS_PAGE_CODE; 6832 subpage = cdb->subpage; 6833 alloc_len = scsi_2btoul(cdb->length); 6834 6835 page_index = NULL; 6836 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 6837 page_index = &lun->log_pages.index[i]; 6838 6839 /* Look for the right page code */ 6840 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 6841 continue; 6842 6843 /* Look for the right subpage or the subpage wildcard*/ 6844 if (page_index->subpage != subpage) 6845 continue; 6846 6847 break; 6848 } 6849 if (i >= CTL_NUM_LOG_PAGES) { 6850 ctl_set_invalid_field(ctsio, 6851 /*sks_valid*/ 1, 6852 /*command*/ 1, 6853 /*field*/ 2, 6854 /*bit_valid*/ 0, 6855 /*bit*/ 0); 6856 ctl_done((union ctl_io *)ctsio); 6857 return (CTL_RETVAL_COMPLETE); 6858 } 6859 6860 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 6861 6862 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6863 ctsio->kern_sg_entries = 0; 6864 ctsio->kern_data_resid = 0; 6865 ctsio->kern_rel_offset = 0; 6866 if (total_len < alloc_len) { 6867 ctsio->residual = alloc_len - total_len; 6868 ctsio->kern_data_len = total_len; 6869 ctsio->kern_total_len = total_len; 6870 } else { 6871 ctsio->residual = 0; 6872 ctsio->kern_data_len = alloc_len; 6873 ctsio->kern_total_len = alloc_len; 6874 } 6875 6876 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 6877 header->page = page_index->page_code; 6878 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING) 6879 header->page |= SL_DS; 6880 if (page_index->subpage) { 6881 header->page |= SL_SPF; 6882 header->subpage = page_index->subpage; 6883 } 6884 scsi_ulto2b(page_index->page_len, header->datalen); 6885 6886 /* 6887 * Call the handler, if it exists, to update the 6888 * page to the latest values. 6889 */ 6890 if (page_index->sense_handler != NULL) 6891 page_index->sense_handler(ctsio, page_index, pc); 6892 6893 memcpy(header + 1, page_index->page_data, page_index->page_len); 6894 6895 ctl_set_success(ctsio); 6896 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6897 ctsio->be_move_done = ctl_config_move_done; 6898 ctl_datamove((union ctl_io *)ctsio); 6899 return (CTL_RETVAL_COMPLETE); 6900 } 6901 6902 int 6903 ctl_read_capacity(struct ctl_scsiio *ctsio) 6904 { 6905 struct ctl_lun *lun = CTL_LUN(ctsio); 6906 struct scsi_read_capacity *cdb; 6907 struct scsi_read_capacity_data *data; 6908 uint32_t lba; 6909 6910 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 6911 6912 cdb = (struct scsi_read_capacity *)ctsio->cdb; 6913 6914 lba = scsi_4btoul(cdb->addr); 6915 if (((cdb->pmi & SRC_PMI) == 0) 6916 && (lba != 0)) { 6917 ctl_set_invalid_field(/*ctsio*/ ctsio, 6918 /*sks_valid*/ 1, 6919 /*command*/ 1, 6920 /*field*/ 2, 6921 /*bit_valid*/ 0, 6922 /*bit*/ 0); 6923 ctl_done((union ctl_io *)ctsio); 6924 return (CTL_RETVAL_COMPLETE); 6925 } 6926 6927 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6928 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 6929 ctsio->residual = 0; 6930 ctsio->kern_data_len = sizeof(*data); 6931 ctsio->kern_total_len = sizeof(*data); 6932 ctsio->kern_data_resid = 0; 6933 ctsio->kern_rel_offset = 0; 6934 ctsio->kern_sg_entries = 0; 6935 6936 /* 6937 * If the maximum LBA is greater than 0xfffffffe, the user must 6938 * issue a SERVICE ACTION IN (16) command, with the read capacity 6939 * serivce action set. 6940 */ 6941 if (lun->be_lun->maxlba > 0xfffffffe) 6942 scsi_ulto4b(0xffffffff, data->addr); 6943 else 6944 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 6945 6946 /* 6947 * XXX KDM this may not be 512 bytes... 6948 */ 6949 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6950 6951 ctl_set_success(ctsio); 6952 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6953 ctsio->be_move_done = ctl_config_move_done; 6954 ctl_datamove((union ctl_io *)ctsio); 6955 return (CTL_RETVAL_COMPLETE); 6956 } 6957 6958 int 6959 ctl_read_capacity_16(struct ctl_scsiio *ctsio) 6960 { 6961 struct ctl_lun *lun = CTL_LUN(ctsio); 6962 struct scsi_read_capacity_16 *cdb; 6963 struct scsi_read_capacity_data_long *data; 6964 uint64_t lba; 6965 uint32_t alloc_len; 6966 6967 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 6968 6969 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 6970 6971 alloc_len = scsi_4btoul(cdb->alloc_len); 6972 lba = scsi_8btou64(cdb->addr); 6973 6974 if ((cdb->reladr & SRC16_PMI) 6975 && (lba != 0)) { 6976 ctl_set_invalid_field(/*ctsio*/ ctsio, 6977 /*sks_valid*/ 1, 6978 /*command*/ 1, 6979 /*field*/ 2, 6980 /*bit_valid*/ 0, 6981 /*bit*/ 0); 6982 ctl_done((union ctl_io *)ctsio); 6983 return (CTL_RETVAL_COMPLETE); 6984 } 6985 6986 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6987 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 6988 6989 if (sizeof(*data) < alloc_len) { 6990 ctsio->residual = alloc_len - sizeof(*data); 6991 ctsio->kern_data_len = sizeof(*data); 6992 ctsio->kern_total_len = sizeof(*data); 6993 } else { 6994 ctsio->residual = 0; 6995 ctsio->kern_data_len = alloc_len; 6996 ctsio->kern_total_len = alloc_len; 6997 } 6998 ctsio->kern_data_resid = 0; 6999 ctsio->kern_rel_offset = 0; 7000 ctsio->kern_sg_entries = 0; 7001 7002 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7003 /* XXX KDM this may not be 512 bytes... */ 7004 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7005 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7006 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7007 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7008 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7009 7010 ctl_set_success(ctsio); 7011 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7012 ctsio->be_move_done = ctl_config_move_done; 7013 ctl_datamove((union ctl_io *)ctsio); 7014 return (CTL_RETVAL_COMPLETE); 7015 } 7016 7017 int 7018 ctl_get_lba_status(struct ctl_scsiio *ctsio) 7019 { 7020 struct ctl_lun *lun = CTL_LUN(ctsio); 7021 struct scsi_get_lba_status *cdb; 7022 struct scsi_get_lba_status_data *data; 7023 struct ctl_lba_len_flags *lbalen; 7024 uint64_t lba; 7025 uint32_t alloc_len, total_len; 7026 int retval; 7027 7028 CTL_DEBUG_PRINT(("ctl_get_lba_status\n")); 7029 7030 cdb = (struct scsi_get_lba_status *)ctsio->cdb; 7031 lba = scsi_8btou64(cdb->addr); 7032 alloc_len = scsi_4btoul(cdb->alloc_len); 7033 7034 if (lba > lun->be_lun->maxlba) { 7035 ctl_set_lba_out_of_range(ctsio, lba); 7036 ctl_done((union ctl_io *)ctsio); 7037 return (CTL_RETVAL_COMPLETE); 7038 } 7039 7040 total_len = sizeof(*data) + sizeof(data->descr[0]); 7041 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7042 data = (struct scsi_get_lba_status_data *)ctsio->kern_data_ptr; 7043 7044 if (total_len < alloc_len) { 7045 ctsio->residual = alloc_len - total_len; 7046 ctsio->kern_data_len = total_len; 7047 ctsio->kern_total_len = total_len; 7048 } else { 7049 ctsio->residual = 0; 7050 ctsio->kern_data_len = alloc_len; 7051 ctsio->kern_total_len = alloc_len; 7052 } 7053 ctsio->kern_data_resid = 0; 7054 ctsio->kern_rel_offset = 0; 7055 ctsio->kern_sg_entries = 0; 7056 7057 /* Fill dummy data in case backend can't tell anything. */ 7058 scsi_ulto4b(4 + sizeof(data->descr[0]), data->length); 7059 scsi_u64to8b(lba, data->descr[0].addr); 7060 scsi_ulto4b(MIN(UINT32_MAX, lun->be_lun->maxlba + 1 - lba), 7061 data->descr[0].length); 7062 data->descr[0].status = 0; /* Mapped or unknown. */ 7063 7064 ctl_set_success(ctsio); 7065 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7066 ctsio->be_move_done = ctl_config_move_done; 7067 7068 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 7069 lbalen->lba = lba; 7070 lbalen->len = total_len; 7071 lbalen->flags = 0; 7072 retval = lun->backend->config_read((union ctl_io *)ctsio); 7073 return (CTL_RETVAL_COMPLETE); 7074 } 7075 7076 int 7077 ctl_read_defect(struct ctl_scsiio *ctsio) 7078 { 7079 struct scsi_read_defect_data_10 *ccb10; 7080 struct scsi_read_defect_data_12 *ccb12; 7081 struct scsi_read_defect_data_hdr_10 *data10; 7082 struct scsi_read_defect_data_hdr_12 *data12; 7083 uint32_t alloc_len, data_len; 7084 uint8_t format; 7085 7086 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7087 7088 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7089 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7090 format = ccb10->format; 7091 alloc_len = scsi_2btoul(ccb10->alloc_length); 7092 data_len = sizeof(*data10); 7093 } else { 7094 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7095 format = ccb12->format; 7096 alloc_len = scsi_4btoul(ccb12->alloc_length); 7097 data_len = sizeof(*data12); 7098 } 7099 if (alloc_len == 0) { 7100 ctl_set_success(ctsio); 7101 ctl_done((union ctl_io *)ctsio); 7102 return (CTL_RETVAL_COMPLETE); 7103 } 7104 7105 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7106 if (data_len < alloc_len) { 7107 ctsio->residual = alloc_len - data_len; 7108 ctsio->kern_data_len = data_len; 7109 ctsio->kern_total_len = data_len; 7110 } else { 7111 ctsio->residual = 0; 7112 ctsio->kern_data_len = alloc_len; 7113 ctsio->kern_total_len = alloc_len; 7114 } 7115 ctsio->kern_data_resid = 0; 7116 ctsio->kern_rel_offset = 0; 7117 ctsio->kern_sg_entries = 0; 7118 7119 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7120 data10 = (struct scsi_read_defect_data_hdr_10 *) 7121 ctsio->kern_data_ptr; 7122 data10->format = format; 7123 scsi_ulto2b(0, data10->length); 7124 } else { 7125 data12 = (struct scsi_read_defect_data_hdr_12 *) 7126 ctsio->kern_data_ptr; 7127 data12->format = format; 7128 scsi_ulto2b(0, data12->generation); 7129 scsi_ulto4b(0, data12->length); 7130 } 7131 7132 ctl_set_success(ctsio); 7133 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7134 ctsio->be_move_done = ctl_config_move_done; 7135 ctl_datamove((union ctl_io *)ctsio); 7136 return (CTL_RETVAL_COMPLETE); 7137 } 7138 7139 int 7140 ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7141 { 7142 struct ctl_softc *softc = CTL_SOFTC(ctsio); 7143 struct ctl_lun *lun = CTL_LUN(ctsio); 7144 struct scsi_maintenance_in *cdb; 7145 int retval; 7146 int alloc_len, ext, total_len = 0, g, pc, pg, ts, os; 7147 int num_ha_groups, num_target_ports, shared_group; 7148 struct ctl_port *port; 7149 struct scsi_target_group_data *rtg_ptr; 7150 struct scsi_target_group_data_extended *rtg_ext_ptr; 7151 struct scsi_target_port_group_descriptor *tpg_desc; 7152 7153 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7154 7155 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7156 retval = CTL_RETVAL_COMPLETE; 7157 7158 switch (cdb->byte2 & STG_PDF_MASK) { 7159 case STG_PDF_LENGTH: 7160 ext = 0; 7161 break; 7162 case STG_PDF_EXTENDED: 7163 ext = 1; 7164 break; 7165 default: 7166 ctl_set_invalid_field(/*ctsio*/ ctsio, 7167 /*sks_valid*/ 1, 7168 /*command*/ 1, 7169 /*field*/ 2, 7170 /*bit_valid*/ 1, 7171 /*bit*/ 5); 7172 ctl_done((union ctl_io *)ctsio); 7173 return(retval); 7174 } 7175 7176 num_target_ports = 0; 7177 shared_group = (softc->is_single != 0); 7178 mtx_lock(&softc->ctl_lock); 7179 STAILQ_FOREACH(port, &softc->port_list, links) { 7180 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7181 continue; 7182 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 7183 continue; 7184 num_target_ports++; 7185 if (port->status & CTL_PORT_STATUS_HA_SHARED) 7186 shared_group = 1; 7187 } 7188 mtx_unlock(&softc->ctl_lock); 7189 num_ha_groups = (softc->is_single) ? 0 : NUM_HA_SHELVES; 7190 7191 if (ext) 7192 total_len = sizeof(struct scsi_target_group_data_extended); 7193 else 7194 total_len = sizeof(struct scsi_target_group_data); 7195 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7196 (shared_group + num_ha_groups) + 7197 sizeof(struct scsi_target_port_descriptor) * num_target_ports; 7198 7199 alloc_len = scsi_4btoul(cdb->length); 7200 7201 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7202 7203 ctsio->kern_sg_entries = 0; 7204 7205 if (total_len < alloc_len) { 7206 ctsio->residual = alloc_len - total_len; 7207 ctsio->kern_data_len = total_len; 7208 ctsio->kern_total_len = total_len; 7209 } else { 7210 ctsio->residual = 0; 7211 ctsio->kern_data_len = alloc_len; 7212 ctsio->kern_total_len = alloc_len; 7213 } 7214 ctsio->kern_data_resid = 0; 7215 ctsio->kern_rel_offset = 0; 7216 7217 if (ext) { 7218 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7219 ctsio->kern_data_ptr; 7220 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7221 rtg_ext_ptr->format_type = 0x10; 7222 rtg_ext_ptr->implicit_transition_time = 0; 7223 tpg_desc = &rtg_ext_ptr->groups[0]; 7224 } else { 7225 rtg_ptr = (struct scsi_target_group_data *) 7226 ctsio->kern_data_ptr; 7227 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7228 tpg_desc = &rtg_ptr->groups[0]; 7229 } 7230 7231 mtx_lock(&softc->ctl_lock); 7232 pg = softc->port_min / softc->port_cnt; 7233 if (lun->flags & (CTL_LUN_PRIMARY_SC | CTL_LUN_PEER_SC_PRIMARY)) { 7234 /* Some shelf is known to be primary. */ 7235 if (softc->ha_link == CTL_HA_LINK_OFFLINE) 7236 os = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7237 else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) 7238 os = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7239 else if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) 7240 os = TPG_ASYMMETRIC_ACCESS_STANDBY; 7241 else 7242 os = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7243 if (lun->flags & CTL_LUN_PRIMARY_SC) { 7244 ts = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7245 } else { 7246 ts = os; 7247 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7248 } 7249 } else { 7250 /* No known primary shelf. */ 7251 if (softc->ha_link == CTL_HA_LINK_OFFLINE) { 7252 ts = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7253 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7254 } else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) { 7255 ts = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7256 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7257 } else { 7258 ts = os = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7259 } 7260 } 7261 if (shared_group) { 7262 tpg_desc->pref_state = ts; 7263 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7264 TPG_U_SUP | TPG_T_SUP; 7265 scsi_ulto2b(1, tpg_desc->target_port_group); 7266 tpg_desc->status = TPG_IMPLICIT; 7267 pc = 0; 7268 STAILQ_FOREACH(port, &softc->port_list, links) { 7269 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7270 continue; 7271 if (!softc->is_single && 7272 (port->status & CTL_PORT_STATUS_HA_SHARED) == 0) 7273 continue; 7274 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 7275 continue; 7276 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7277 relative_target_port_identifier); 7278 pc++; 7279 } 7280 tpg_desc->target_port_count = pc; 7281 tpg_desc = (struct scsi_target_port_group_descriptor *) 7282 &tpg_desc->descriptors[pc]; 7283 } 7284 for (g = 0; g < num_ha_groups; g++) { 7285 tpg_desc->pref_state = (g == pg) ? ts : os; 7286 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7287 TPG_U_SUP | TPG_T_SUP; 7288 scsi_ulto2b(2 + g, tpg_desc->target_port_group); 7289 tpg_desc->status = TPG_IMPLICIT; 7290 pc = 0; 7291 STAILQ_FOREACH(port, &softc->port_list, links) { 7292 if (port->targ_port < g * softc->port_cnt || 7293 port->targ_port >= (g + 1) * softc->port_cnt) 7294 continue; 7295 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7296 continue; 7297 if (port->status & CTL_PORT_STATUS_HA_SHARED) 7298 continue; 7299 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 7300 continue; 7301 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7302 relative_target_port_identifier); 7303 pc++; 7304 } 7305 tpg_desc->target_port_count = pc; 7306 tpg_desc = (struct scsi_target_port_group_descriptor *) 7307 &tpg_desc->descriptors[pc]; 7308 } 7309 mtx_unlock(&softc->ctl_lock); 7310 7311 ctl_set_success(ctsio); 7312 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7313 ctsio->be_move_done = ctl_config_move_done; 7314 ctl_datamove((union ctl_io *)ctsio); 7315 return(retval); 7316 } 7317 7318 int 7319 ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7320 { 7321 struct ctl_lun *lun = CTL_LUN(ctsio); 7322 struct scsi_report_supported_opcodes *cdb; 7323 const struct ctl_cmd_entry *entry, *sentry; 7324 struct scsi_report_supported_opcodes_all *all; 7325 struct scsi_report_supported_opcodes_descr *descr; 7326 struct scsi_report_supported_opcodes_one *one; 7327 int retval; 7328 int alloc_len, total_len; 7329 int opcode, service_action, i, j, num; 7330 7331 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7332 7333 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7334 retval = CTL_RETVAL_COMPLETE; 7335 7336 opcode = cdb->requested_opcode; 7337 service_action = scsi_2btoul(cdb->requested_service_action); 7338 switch (cdb->options & RSO_OPTIONS_MASK) { 7339 case RSO_OPTIONS_ALL: 7340 num = 0; 7341 for (i = 0; i < 256; i++) { 7342 entry = &ctl_cmd_table[i]; 7343 if (entry->flags & CTL_CMD_FLAG_SA5) { 7344 for (j = 0; j < 32; j++) { 7345 sentry = &((const struct ctl_cmd_entry *) 7346 entry->execute)[j]; 7347 if (ctl_cmd_applicable( 7348 lun->be_lun->lun_type, sentry)) 7349 num++; 7350 } 7351 } else { 7352 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7353 entry)) 7354 num++; 7355 } 7356 } 7357 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7358 num * sizeof(struct scsi_report_supported_opcodes_descr); 7359 break; 7360 case RSO_OPTIONS_OC: 7361 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7362 ctl_set_invalid_field(/*ctsio*/ ctsio, 7363 /*sks_valid*/ 1, 7364 /*command*/ 1, 7365 /*field*/ 2, 7366 /*bit_valid*/ 1, 7367 /*bit*/ 2); 7368 ctl_done((union ctl_io *)ctsio); 7369 return (CTL_RETVAL_COMPLETE); 7370 } 7371 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7372 break; 7373 case RSO_OPTIONS_OC_SA: 7374 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7375 service_action >= 32) { 7376 ctl_set_invalid_field(/*ctsio*/ ctsio, 7377 /*sks_valid*/ 1, 7378 /*command*/ 1, 7379 /*field*/ 2, 7380 /*bit_valid*/ 1, 7381 /*bit*/ 2); 7382 ctl_done((union ctl_io *)ctsio); 7383 return (CTL_RETVAL_COMPLETE); 7384 } 7385 /* FALLTHROUGH */ 7386 case RSO_OPTIONS_OC_ASA: 7387 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7388 break; 7389 default: 7390 ctl_set_invalid_field(/*ctsio*/ ctsio, 7391 /*sks_valid*/ 1, 7392 /*command*/ 1, 7393 /*field*/ 2, 7394 /*bit_valid*/ 1, 7395 /*bit*/ 2); 7396 ctl_done((union ctl_io *)ctsio); 7397 return (CTL_RETVAL_COMPLETE); 7398 } 7399 7400 alloc_len = scsi_4btoul(cdb->length); 7401 7402 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7403 7404 ctsio->kern_sg_entries = 0; 7405 7406 if (total_len < alloc_len) { 7407 ctsio->residual = alloc_len - total_len; 7408 ctsio->kern_data_len = total_len; 7409 ctsio->kern_total_len = total_len; 7410 } else { 7411 ctsio->residual = 0; 7412 ctsio->kern_data_len = alloc_len; 7413 ctsio->kern_total_len = alloc_len; 7414 } 7415 ctsio->kern_data_resid = 0; 7416 ctsio->kern_rel_offset = 0; 7417 7418 switch (cdb->options & RSO_OPTIONS_MASK) { 7419 case RSO_OPTIONS_ALL: 7420 all = (struct scsi_report_supported_opcodes_all *) 7421 ctsio->kern_data_ptr; 7422 num = 0; 7423 for (i = 0; i < 256; i++) { 7424 entry = &ctl_cmd_table[i]; 7425 if (entry->flags & CTL_CMD_FLAG_SA5) { 7426 for (j = 0; j < 32; j++) { 7427 sentry = &((const struct ctl_cmd_entry *) 7428 entry->execute)[j]; 7429 if (!ctl_cmd_applicable( 7430 lun->be_lun->lun_type, sentry)) 7431 continue; 7432 descr = &all->descr[num++]; 7433 descr->opcode = i; 7434 scsi_ulto2b(j, descr->service_action); 7435 descr->flags = RSO_SERVACTV; 7436 scsi_ulto2b(sentry->length, 7437 descr->cdb_length); 7438 } 7439 } else { 7440 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7441 entry)) 7442 continue; 7443 descr = &all->descr[num++]; 7444 descr->opcode = i; 7445 scsi_ulto2b(0, descr->service_action); 7446 descr->flags = 0; 7447 scsi_ulto2b(entry->length, descr->cdb_length); 7448 } 7449 } 7450 scsi_ulto4b( 7451 num * sizeof(struct scsi_report_supported_opcodes_descr), 7452 all->length); 7453 break; 7454 case RSO_OPTIONS_OC: 7455 one = (struct scsi_report_supported_opcodes_one *) 7456 ctsio->kern_data_ptr; 7457 entry = &ctl_cmd_table[opcode]; 7458 goto fill_one; 7459 case RSO_OPTIONS_OC_SA: 7460 one = (struct scsi_report_supported_opcodes_one *) 7461 ctsio->kern_data_ptr; 7462 entry = &ctl_cmd_table[opcode]; 7463 entry = &((const struct ctl_cmd_entry *) 7464 entry->execute)[service_action]; 7465 fill_one: 7466 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7467 one->support = 3; 7468 scsi_ulto2b(entry->length, one->cdb_length); 7469 one->cdb_usage[0] = opcode; 7470 memcpy(&one->cdb_usage[1], entry->usage, 7471 entry->length - 1); 7472 } else 7473 one->support = 1; 7474 break; 7475 case RSO_OPTIONS_OC_ASA: 7476 one = (struct scsi_report_supported_opcodes_one *) 7477 ctsio->kern_data_ptr; 7478 entry = &ctl_cmd_table[opcode]; 7479 if (entry->flags & CTL_CMD_FLAG_SA5) { 7480 entry = &((const struct ctl_cmd_entry *) 7481 entry->execute)[service_action]; 7482 } else if (service_action != 0) { 7483 one->support = 1; 7484 break; 7485 } 7486 goto fill_one; 7487 } 7488 7489 ctl_set_success(ctsio); 7490 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7491 ctsio->be_move_done = ctl_config_move_done; 7492 ctl_datamove((union ctl_io *)ctsio); 7493 return(retval); 7494 } 7495 7496 int 7497 ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7498 { 7499 struct scsi_report_supported_tmf *cdb; 7500 struct scsi_report_supported_tmf_ext_data *data; 7501 int retval; 7502 int alloc_len, total_len; 7503 7504 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7505 7506 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7507 7508 retval = CTL_RETVAL_COMPLETE; 7509 7510 if (cdb->options & RST_REPD) 7511 total_len = sizeof(struct scsi_report_supported_tmf_ext_data); 7512 else 7513 total_len = sizeof(struct scsi_report_supported_tmf_data); 7514 alloc_len = scsi_4btoul(cdb->length); 7515 7516 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7517 7518 ctsio->kern_sg_entries = 0; 7519 7520 if (total_len < alloc_len) { 7521 ctsio->residual = alloc_len - total_len; 7522 ctsio->kern_data_len = total_len; 7523 ctsio->kern_total_len = total_len; 7524 } else { 7525 ctsio->residual = 0; 7526 ctsio->kern_data_len = alloc_len; 7527 ctsio->kern_total_len = alloc_len; 7528 } 7529 ctsio->kern_data_resid = 0; 7530 ctsio->kern_rel_offset = 0; 7531 7532 data = (struct scsi_report_supported_tmf_ext_data *)ctsio->kern_data_ptr; 7533 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_QTS | 7534 RST_TRS; 7535 data->byte2 |= RST_QAES | RST_QTSS | RST_ITNRS; 7536 data->length = total_len - 4; 7537 7538 ctl_set_success(ctsio); 7539 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7540 ctsio->be_move_done = ctl_config_move_done; 7541 ctl_datamove((union ctl_io *)ctsio); 7542 return (retval); 7543 } 7544 7545 int 7546 ctl_report_timestamp(struct ctl_scsiio *ctsio) 7547 { 7548 struct scsi_report_timestamp *cdb; 7549 struct scsi_report_timestamp_data *data; 7550 struct timeval tv; 7551 int64_t timestamp; 7552 int retval; 7553 int alloc_len, total_len; 7554 7555 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7556 7557 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7558 7559 retval = CTL_RETVAL_COMPLETE; 7560 7561 total_len = sizeof(struct scsi_report_timestamp_data); 7562 alloc_len = scsi_4btoul(cdb->length); 7563 7564 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7565 7566 ctsio->kern_sg_entries = 0; 7567 7568 if (total_len < alloc_len) { 7569 ctsio->residual = alloc_len - total_len; 7570 ctsio->kern_data_len = total_len; 7571 ctsio->kern_total_len = total_len; 7572 } else { 7573 ctsio->residual = 0; 7574 ctsio->kern_data_len = alloc_len; 7575 ctsio->kern_total_len = alloc_len; 7576 } 7577 ctsio->kern_data_resid = 0; 7578 ctsio->kern_rel_offset = 0; 7579 7580 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7581 scsi_ulto2b(sizeof(*data) - 2, data->length); 7582 data->origin = RTS_ORIG_OUTSIDE; 7583 getmicrotime(&tv); 7584 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7585 scsi_ulto4b(timestamp >> 16, data->timestamp); 7586 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7587 7588 ctl_set_success(ctsio); 7589 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7590 ctsio->be_move_done = ctl_config_move_done; 7591 ctl_datamove((union ctl_io *)ctsio); 7592 return (retval); 7593 } 7594 7595 int 7596 ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7597 { 7598 struct ctl_softc *softc = CTL_SOFTC(ctsio); 7599 struct ctl_lun *lun = CTL_LUN(ctsio); 7600 struct scsi_per_res_in *cdb; 7601 int alloc_len, total_len = 0; 7602 /* struct scsi_per_res_in_rsrv in_data; */ 7603 uint64_t key; 7604 7605 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7606 7607 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7608 7609 alloc_len = scsi_2btoul(cdb->length); 7610 7611 retry: 7612 mtx_lock(&lun->lun_lock); 7613 switch (cdb->action) { 7614 case SPRI_RK: /* read keys */ 7615 total_len = sizeof(struct scsi_per_res_in_keys) + 7616 lun->pr_key_count * 7617 sizeof(struct scsi_per_res_key); 7618 break; 7619 case SPRI_RR: /* read reservation */ 7620 if (lun->flags & CTL_LUN_PR_RESERVED) 7621 total_len = sizeof(struct scsi_per_res_in_rsrv); 7622 else 7623 total_len = sizeof(struct scsi_per_res_in_header); 7624 break; 7625 case SPRI_RC: /* report capabilities */ 7626 total_len = sizeof(struct scsi_per_res_cap); 7627 break; 7628 case SPRI_RS: /* read full status */ 7629 total_len = sizeof(struct scsi_per_res_in_header) + 7630 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7631 lun->pr_key_count; 7632 break; 7633 default: 7634 panic("%s: Invalid PR type %#x", __func__, cdb->action); 7635 } 7636 mtx_unlock(&lun->lun_lock); 7637 7638 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7639 7640 if (total_len < alloc_len) { 7641 ctsio->residual = alloc_len - total_len; 7642 ctsio->kern_data_len = total_len; 7643 ctsio->kern_total_len = total_len; 7644 } else { 7645 ctsio->residual = 0; 7646 ctsio->kern_data_len = alloc_len; 7647 ctsio->kern_total_len = alloc_len; 7648 } 7649 7650 ctsio->kern_data_resid = 0; 7651 ctsio->kern_rel_offset = 0; 7652 ctsio->kern_sg_entries = 0; 7653 7654 mtx_lock(&lun->lun_lock); 7655 switch (cdb->action) { 7656 case SPRI_RK: { // read keys 7657 struct scsi_per_res_in_keys *res_keys; 7658 int i, key_count; 7659 7660 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7661 7662 /* 7663 * We had to drop the lock to allocate our buffer, which 7664 * leaves time for someone to come in with another 7665 * persistent reservation. (That is unlikely, though, 7666 * since this should be the only persistent reservation 7667 * command active right now.) 7668 */ 7669 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7670 (lun->pr_key_count * 7671 sizeof(struct scsi_per_res_key)))){ 7672 mtx_unlock(&lun->lun_lock); 7673 free(ctsio->kern_data_ptr, M_CTL); 7674 printf("%s: reservation length changed, retrying\n", 7675 __func__); 7676 goto retry; 7677 } 7678 7679 scsi_ulto4b(lun->pr_generation, res_keys->header.generation); 7680 7681 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7682 lun->pr_key_count, res_keys->header.length); 7683 7684 for (i = 0, key_count = 0; i < CTL_MAX_INITIATORS; i++) { 7685 if ((key = ctl_get_prkey(lun, i)) == 0) 7686 continue; 7687 7688 /* 7689 * We used lun->pr_key_count to calculate the 7690 * size to allocate. If it turns out the number of 7691 * initiators with the registered flag set is 7692 * larger than that (i.e. they haven't been kept in 7693 * sync), we've got a problem. 7694 */ 7695 if (key_count >= lun->pr_key_count) { 7696 key_count++; 7697 continue; 7698 } 7699 scsi_u64to8b(key, res_keys->keys[key_count].key); 7700 key_count++; 7701 } 7702 break; 7703 } 7704 case SPRI_RR: { // read reservation 7705 struct scsi_per_res_in_rsrv *res; 7706 int tmp_len, header_only; 7707 7708 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7709 7710 scsi_ulto4b(lun->pr_generation, res->header.generation); 7711 7712 if (lun->flags & CTL_LUN_PR_RESERVED) 7713 { 7714 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7715 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7716 res->header.length); 7717 header_only = 0; 7718 } else { 7719 tmp_len = sizeof(struct scsi_per_res_in_header); 7720 scsi_ulto4b(0, res->header.length); 7721 header_only = 1; 7722 } 7723 7724 /* 7725 * We had to drop the lock to allocate our buffer, which 7726 * leaves time for someone to come in with another 7727 * persistent reservation. (That is unlikely, though, 7728 * since this should be the only persistent reservation 7729 * command active right now.) 7730 */ 7731 if (tmp_len != total_len) { 7732 mtx_unlock(&lun->lun_lock); 7733 free(ctsio->kern_data_ptr, M_CTL); 7734 printf("%s: reservation status changed, retrying\n", 7735 __func__); 7736 goto retry; 7737 } 7738 7739 /* 7740 * No reservation held, so we're done. 7741 */ 7742 if (header_only != 0) 7743 break; 7744 7745 /* 7746 * If the registration is an All Registrants type, the key 7747 * is 0, since it doesn't really matter. 7748 */ 7749 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7750 scsi_u64to8b(ctl_get_prkey(lun, lun->pr_res_idx), 7751 res->data.reservation); 7752 } 7753 res->data.scopetype = lun->pr_res_type; 7754 break; 7755 } 7756 case SPRI_RC: //report capabilities 7757 { 7758 struct scsi_per_res_cap *res_cap; 7759 uint16_t type_mask; 7760 7761 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7762 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7763 res_cap->flags1 = SPRI_CRH; 7764 res_cap->flags2 = SPRI_TMV | SPRI_ALLOW_5; 7765 type_mask = SPRI_TM_WR_EX_AR | 7766 SPRI_TM_EX_AC_RO | 7767 SPRI_TM_WR_EX_RO | 7768 SPRI_TM_EX_AC | 7769 SPRI_TM_WR_EX | 7770 SPRI_TM_EX_AC_AR; 7771 scsi_ulto2b(type_mask, res_cap->type_mask); 7772 break; 7773 } 7774 case SPRI_RS: { // read full status 7775 struct scsi_per_res_in_full *res_status; 7776 struct scsi_per_res_in_full_desc *res_desc; 7777 struct ctl_port *port; 7778 int i, len; 7779 7780 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7781 7782 /* 7783 * We had to drop the lock to allocate our buffer, which 7784 * leaves time for someone to come in with another 7785 * persistent reservation. (That is unlikely, though, 7786 * since this should be the only persistent reservation 7787 * command active right now.) 7788 */ 7789 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7790 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7791 lun->pr_key_count)){ 7792 mtx_unlock(&lun->lun_lock); 7793 free(ctsio->kern_data_ptr, M_CTL); 7794 printf("%s: reservation length changed, retrying\n", 7795 __func__); 7796 goto retry; 7797 } 7798 7799 scsi_ulto4b(lun->pr_generation, res_status->header.generation); 7800 7801 res_desc = &res_status->desc[0]; 7802 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7803 if ((key = ctl_get_prkey(lun, i)) == 0) 7804 continue; 7805 7806 scsi_u64to8b(key, res_desc->res_key.key); 7807 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7808 (lun->pr_res_idx == i || 7809 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7810 res_desc->flags = SPRI_FULL_R_HOLDER; 7811 res_desc->scopetype = lun->pr_res_type; 7812 } 7813 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7814 res_desc->rel_trgt_port_id); 7815 len = 0; 7816 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT]; 7817 if (port != NULL) 7818 len = ctl_create_iid(port, 7819 i % CTL_MAX_INIT_PER_PORT, 7820 res_desc->transport_id); 7821 scsi_ulto4b(len, res_desc->additional_length); 7822 res_desc = (struct scsi_per_res_in_full_desc *) 7823 &res_desc->transport_id[len]; 7824 } 7825 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7826 res_status->header.length); 7827 break; 7828 } 7829 default: 7830 panic("%s: Invalid PR type %#x", __func__, cdb->action); 7831 } 7832 mtx_unlock(&lun->lun_lock); 7833 7834 ctl_set_success(ctsio); 7835 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7836 ctsio->be_move_done = ctl_config_move_done; 7837 ctl_datamove((union ctl_io *)ctsio); 7838 return (CTL_RETVAL_COMPLETE); 7839 } 7840 7841 /* 7842 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7843 * it should return. 7844 */ 7845 static int 7846 ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7847 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7848 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7849 struct scsi_per_res_out_parms* param) 7850 { 7851 union ctl_ha_msg persis_io; 7852 int i; 7853 7854 mtx_lock(&lun->lun_lock); 7855 if (sa_res_key == 0) { 7856 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7857 /* validate scope and type */ 7858 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7859 SPR_LU_SCOPE) { 7860 mtx_unlock(&lun->lun_lock); 7861 ctl_set_invalid_field(/*ctsio*/ ctsio, 7862 /*sks_valid*/ 1, 7863 /*command*/ 1, 7864 /*field*/ 2, 7865 /*bit_valid*/ 1, 7866 /*bit*/ 4); 7867 ctl_done((union ctl_io *)ctsio); 7868 return (1); 7869 } 7870 7871 if (type>8 || type==2 || type==4 || type==0) { 7872 mtx_unlock(&lun->lun_lock); 7873 ctl_set_invalid_field(/*ctsio*/ ctsio, 7874 /*sks_valid*/ 1, 7875 /*command*/ 1, 7876 /*field*/ 2, 7877 /*bit_valid*/ 1, 7878 /*bit*/ 0); 7879 ctl_done((union ctl_io *)ctsio); 7880 return (1); 7881 } 7882 7883 /* 7884 * Unregister everybody else and build UA for 7885 * them 7886 */ 7887 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7888 if (i == residx || ctl_get_prkey(lun, i) == 0) 7889 continue; 7890 7891 ctl_clr_prkey(lun, i); 7892 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7893 } 7894 lun->pr_key_count = 1; 7895 lun->pr_res_type = type; 7896 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 7897 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 7898 lun->pr_res_idx = residx; 7899 lun->pr_generation++; 7900 mtx_unlock(&lun->lun_lock); 7901 7902 /* send msg to other side */ 7903 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7904 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7905 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7906 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7907 persis_io.pr.pr_info.res_type = type; 7908 memcpy(persis_io.pr.pr_info.sa_res_key, 7909 param->serv_act_res_key, 7910 sizeof(param->serv_act_res_key)); 7911 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7912 sizeof(persis_io.pr), M_WAITOK); 7913 } else { 7914 /* not all registrants */ 7915 mtx_unlock(&lun->lun_lock); 7916 free(ctsio->kern_data_ptr, M_CTL); 7917 ctl_set_invalid_field(ctsio, 7918 /*sks_valid*/ 1, 7919 /*command*/ 0, 7920 /*field*/ 8, 7921 /*bit_valid*/ 0, 7922 /*bit*/ 0); 7923 ctl_done((union ctl_io *)ctsio); 7924 return (1); 7925 } 7926 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7927 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 7928 int found = 0; 7929 7930 if (res_key == sa_res_key) { 7931 /* special case */ 7932 /* 7933 * The spec implies this is not good but doesn't 7934 * say what to do. There are two choices either 7935 * generate a res conflict or check condition 7936 * with illegal field in parameter data. Since 7937 * that is what is done when the sa_res_key is 7938 * zero I'll take that approach since this has 7939 * to do with the sa_res_key. 7940 */ 7941 mtx_unlock(&lun->lun_lock); 7942 free(ctsio->kern_data_ptr, M_CTL); 7943 ctl_set_invalid_field(ctsio, 7944 /*sks_valid*/ 1, 7945 /*command*/ 0, 7946 /*field*/ 8, 7947 /*bit_valid*/ 0, 7948 /*bit*/ 0); 7949 ctl_done((union ctl_io *)ctsio); 7950 return (1); 7951 } 7952 7953 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7954 if (ctl_get_prkey(lun, i) != sa_res_key) 7955 continue; 7956 7957 found = 1; 7958 ctl_clr_prkey(lun, i); 7959 lun->pr_key_count--; 7960 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7961 } 7962 if (!found) { 7963 mtx_unlock(&lun->lun_lock); 7964 free(ctsio->kern_data_ptr, M_CTL); 7965 ctl_set_reservation_conflict(ctsio); 7966 ctl_done((union ctl_io *)ctsio); 7967 return (CTL_RETVAL_COMPLETE); 7968 } 7969 lun->pr_generation++; 7970 mtx_unlock(&lun->lun_lock); 7971 7972 /* send msg to other side */ 7973 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7974 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7975 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7976 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7977 persis_io.pr.pr_info.res_type = type; 7978 memcpy(persis_io.pr.pr_info.sa_res_key, 7979 param->serv_act_res_key, 7980 sizeof(param->serv_act_res_key)); 7981 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7982 sizeof(persis_io.pr), M_WAITOK); 7983 } else { 7984 /* Reserved but not all registrants */ 7985 /* sa_res_key is res holder */ 7986 if (sa_res_key == ctl_get_prkey(lun, lun->pr_res_idx)) { 7987 /* validate scope and type */ 7988 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7989 SPR_LU_SCOPE) { 7990 mtx_unlock(&lun->lun_lock); 7991 ctl_set_invalid_field(/*ctsio*/ ctsio, 7992 /*sks_valid*/ 1, 7993 /*command*/ 1, 7994 /*field*/ 2, 7995 /*bit_valid*/ 1, 7996 /*bit*/ 4); 7997 ctl_done((union ctl_io *)ctsio); 7998 return (1); 7999 } 8000 8001 if (type>8 || type==2 || type==4 || type==0) { 8002 mtx_unlock(&lun->lun_lock); 8003 ctl_set_invalid_field(/*ctsio*/ ctsio, 8004 /*sks_valid*/ 1, 8005 /*command*/ 1, 8006 /*field*/ 2, 8007 /*bit_valid*/ 1, 8008 /*bit*/ 0); 8009 ctl_done((union ctl_io *)ctsio); 8010 return (1); 8011 } 8012 8013 /* 8014 * Do the following: 8015 * if sa_res_key != res_key remove all 8016 * registrants w/sa_res_key and generate UA 8017 * for these registrants(Registrations 8018 * Preempted) if it wasn't an exclusive 8019 * reservation generate UA(Reservations 8020 * Preempted) for all other registered nexuses 8021 * if the type has changed. Establish the new 8022 * reservation and holder. If res_key and 8023 * sa_res_key are the same do the above 8024 * except don't unregister the res holder. 8025 */ 8026 8027 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 8028 if (i == residx || ctl_get_prkey(lun, i) == 0) 8029 continue; 8030 8031 if (sa_res_key == ctl_get_prkey(lun, i)) { 8032 ctl_clr_prkey(lun, i); 8033 lun->pr_key_count--; 8034 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8035 } else if (type != lun->pr_res_type && 8036 (lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8037 lun->pr_res_type == SPR_TYPE_EX_AC_RO)) { 8038 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8039 } 8040 } 8041 lun->pr_res_type = type; 8042 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8043 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8044 lun->pr_res_idx = residx; 8045 else 8046 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8047 lun->pr_generation++; 8048 mtx_unlock(&lun->lun_lock); 8049 8050 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8051 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8052 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8053 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8054 persis_io.pr.pr_info.res_type = type; 8055 memcpy(persis_io.pr.pr_info.sa_res_key, 8056 param->serv_act_res_key, 8057 sizeof(param->serv_act_res_key)); 8058 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8059 sizeof(persis_io.pr), M_WAITOK); 8060 } else { 8061 /* 8062 * sa_res_key is not the res holder just 8063 * remove registrants 8064 */ 8065 int found=0; 8066 8067 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8068 if (sa_res_key != ctl_get_prkey(lun, i)) 8069 continue; 8070 8071 found = 1; 8072 ctl_clr_prkey(lun, i); 8073 lun->pr_key_count--; 8074 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8075 } 8076 8077 if (!found) { 8078 mtx_unlock(&lun->lun_lock); 8079 free(ctsio->kern_data_ptr, M_CTL); 8080 ctl_set_reservation_conflict(ctsio); 8081 ctl_done((union ctl_io *)ctsio); 8082 return (1); 8083 } 8084 lun->pr_generation++; 8085 mtx_unlock(&lun->lun_lock); 8086 8087 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8088 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8089 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8090 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8091 persis_io.pr.pr_info.res_type = type; 8092 memcpy(persis_io.pr.pr_info.sa_res_key, 8093 param->serv_act_res_key, 8094 sizeof(param->serv_act_res_key)); 8095 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8096 sizeof(persis_io.pr), M_WAITOK); 8097 } 8098 } 8099 return (0); 8100 } 8101 8102 static void 8103 ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8104 { 8105 uint64_t sa_res_key; 8106 int i; 8107 8108 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8109 8110 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8111 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8112 || sa_res_key != ctl_get_prkey(lun, lun->pr_res_idx)) { 8113 if (sa_res_key == 0) { 8114 /* 8115 * Unregister everybody else and build UA for 8116 * them 8117 */ 8118 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 8119 if (i == msg->pr.pr_info.residx || 8120 ctl_get_prkey(lun, i) == 0) 8121 continue; 8122 8123 ctl_clr_prkey(lun, i); 8124 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8125 } 8126 8127 lun->pr_key_count = 1; 8128 lun->pr_res_type = msg->pr.pr_info.res_type; 8129 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8130 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8131 lun->pr_res_idx = msg->pr.pr_info.residx; 8132 } else { 8133 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8134 if (sa_res_key == ctl_get_prkey(lun, i)) 8135 continue; 8136 8137 ctl_clr_prkey(lun, i); 8138 lun->pr_key_count--; 8139 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8140 } 8141 } 8142 } else { 8143 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8144 if (i == msg->pr.pr_info.residx || 8145 ctl_get_prkey(lun, i) == 0) 8146 continue; 8147 8148 if (sa_res_key == ctl_get_prkey(lun, i)) { 8149 ctl_clr_prkey(lun, i); 8150 lun->pr_key_count--; 8151 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8152 } else if (msg->pr.pr_info.res_type != lun->pr_res_type 8153 && (lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8154 lun->pr_res_type == SPR_TYPE_EX_AC_RO)) { 8155 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8156 } 8157 } 8158 lun->pr_res_type = msg->pr.pr_info.res_type; 8159 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8160 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8161 lun->pr_res_idx = msg->pr.pr_info.residx; 8162 else 8163 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8164 } 8165 lun->pr_generation++; 8166 8167 } 8168 8169 8170 int 8171 ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8172 { 8173 struct ctl_softc *softc = CTL_SOFTC(ctsio); 8174 struct ctl_lun *lun = CTL_LUN(ctsio); 8175 int retval; 8176 u_int32_t param_len; 8177 struct scsi_per_res_out *cdb; 8178 struct scsi_per_res_out_parms* param; 8179 uint32_t residx; 8180 uint64_t res_key, sa_res_key, key; 8181 uint8_t type; 8182 union ctl_ha_msg persis_io; 8183 int i; 8184 8185 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8186 8187 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8188 retval = CTL_RETVAL_COMPLETE; 8189 8190 /* 8191 * We only support whole-LUN scope. The scope & type are ignored for 8192 * register, register and ignore existing key and clear. 8193 * We sometimes ignore scope and type on preempts too!! 8194 * Verify reservation type here as well. 8195 */ 8196 type = cdb->scope_type & SPR_TYPE_MASK; 8197 if ((cdb->action == SPRO_RESERVE) 8198 || (cdb->action == SPRO_RELEASE)) { 8199 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8200 ctl_set_invalid_field(/*ctsio*/ ctsio, 8201 /*sks_valid*/ 1, 8202 /*command*/ 1, 8203 /*field*/ 2, 8204 /*bit_valid*/ 1, 8205 /*bit*/ 4); 8206 ctl_done((union ctl_io *)ctsio); 8207 return (CTL_RETVAL_COMPLETE); 8208 } 8209 8210 if (type>8 || type==2 || type==4 || type==0) { 8211 ctl_set_invalid_field(/*ctsio*/ ctsio, 8212 /*sks_valid*/ 1, 8213 /*command*/ 1, 8214 /*field*/ 2, 8215 /*bit_valid*/ 1, 8216 /*bit*/ 0); 8217 ctl_done((union ctl_io *)ctsio); 8218 return (CTL_RETVAL_COMPLETE); 8219 } 8220 } 8221 8222 param_len = scsi_4btoul(cdb->length); 8223 8224 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8225 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8226 ctsio->kern_data_len = param_len; 8227 ctsio->kern_total_len = param_len; 8228 ctsio->kern_data_resid = 0; 8229 ctsio->kern_rel_offset = 0; 8230 ctsio->kern_sg_entries = 0; 8231 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8232 ctsio->be_move_done = ctl_config_move_done; 8233 ctl_datamove((union ctl_io *)ctsio); 8234 8235 return (CTL_RETVAL_COMPLETE); 8236 } 8237 8238 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8239 8240 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 8241 res_key = scsi_8btou64(param->res_key.key); 8242 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8243 8244 /* 8245 * Validate the reservation key here except for SPRO_REG_IGNO 8246 * This must be done for all other service actions 8247 */ 8248 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8249 mtx_lock(&lun->lun_lock); 8250 if ((key = ctl_get_prkey(lun, residx)) != 0) { 8251 if (res_key != key) { 8252 /* 8253 * The current key passed in doesn't match 8254 * the one the initiator previously 8255 * registered. 8256 */ 8257 mtx_unlock(&lun->lun_lock); 8258 free(ctsio->kern_data_ptr, M_CTL); 8259 ctl_set_reservation_conflict(ctsio); 8260 ctl_done((union ctl_io *)ctsio); 8261 return (CTL_RETVAL_COMPLETE); 8262 } 8263 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8264 /* 8265 * We are not registered 8266 */ 8267 mtx_unlock(&lun->lun_lock); 8268 free(ctsio->kern_data_ptr, M_CTL); 8269 ctl_set_reservation_conflict(ctsio); 8270 ctl_done((union ctl_io *)ctsio); 8271 return (CTL_RETVAL_COMPLETE); 8272 } else if (res_key != 0) { 8273 /* 8274 * We are not registered and trying to register but 8275 * the register key isn't zero. 8276 */ 8277 mtx_unlock(&lun->lun_lock); 8278 free(ctsio->kern_data_ptr, M_CTL); 8279 ctl_set_reservation_conflict(ctsio); 8280 ctl_done((union ctl_io *)ctsio); 8281 return (CTL_RETVAL_COMPLETE); 8282 } 8283 mtx_unlock(&lun->lun_lock); 8284 } 8285 8286 switch (cdb->action & SPRO_ACTION_MASK) { 8287 case SPRO_REGISTER: 8288 case SPRO_REG_IGNO: { 8289 8290 #if 0 8291 printf("Registration received\n"); 8292 #endif 8293 8294 /* 8295 * We don't support any of these options, as we report in 8296 * the read capabilities request (see 8297 * ctl_persistent_reserve_in(), above). 8298 */ 8299 if ((param->flags & SPR_SPEC_I_PT) 8300 || (param->flags & SPR_ALL_TG_PT) 8301 || (param->flags & SPR_APTPL)) { 8302 int bit_ptr; 8303 8304 if (param->flags & SPR_APTPL) 8305 bit_ptr = 0; 8306 else if (param->flags & SPR_ALL_TG_PT) 8307 bit_ptr = 2; 8308 else /* SPR_SPEC_I_PT */ 8309 bit_ptr = 3; 8310 8311 free(ctsio->kern_data_ptr, M_CTL); 8312 ctl_set_invalid_field(ctsio, 8313 /*sks_valid*/ 1, 8314 /*command*/ 0, 8315 /*field*/ 20, 8316 /*bit_valid*/ 1, 8317 /*bit*/ bit_ptr); 8318 ctl_done((union ctl_io *)ctsio); 8319 return (CTL_RETVAL_COMPLETE); 8320 } 8321 8322 mtx_lock(&lun->lun_lock); 8323 8324 /* 8325 * The initiator wants to clear the 8326 * key/unregister. 8327 */ 8328 if (sa_res_key == 0) { 8329 if ((res_key == 0 8330 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8331 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8332 && ctl_get_prkey(lun, residx) == 0)) { 8333 mtx_unlock(&lun->lun_lock); 8334 goto done; 8335 } 8336 8337 ctl_clr_prkey(lun, residx); 8338 lun->pr_key_count--; 8339 8340 if (residx == lun->pr_res_idx) { 8341 lun->flags &= ~CTL_LUN_PR_RESERVED; 8342 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8343 8344 if ((lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8345 lun->pr_res_type == SPR_TYPE_EX_AC_RO) && 8346 lun->pr_key_count) { 8347 /* 8348 * If the reservation is a registrants 8349 * only type we need to generate a UA 8350 * for other registered inits. The 8351 * sense code should be RESERVATIONS 8352 * RELEASED 8353 */ 8354 8355 for (i = softc->init_min; i < softc->init_max; i++){ 8356 if (ctl_get_prkey(lun, i) == 0) 8357 continue; 8358 ctl_est_ua(lun, i, 8359 CTL_UA_RES_RELEASE); 8360 } 8361 } 8362 lun->pr_res_type = 0; 8363 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8364 if (lun->pr_key_count==0) { 8365 lun->flags &= ~CTL_LUN_PR_RESERVED; 8366 lun->pr_res_type = 0; 8367 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8368 } 8369 } 8370 lun->pr_generation++; 8371 mtx_unlock(&lun->lun_lock); 8372 8373 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8374 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8375 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8376 persis_io.pr.pr_info.residx = residx; 8377 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8378 sizeof(persis_io.pr), M_WAITOK); 8379 } else /* sa_res_key != 0 */ { 8380 8381 /* 8382 * If we aren't registered currently then increment 8383 * the key count and set the registered flag. 8384 */ 8385 ctl_alloc_prkey(lun, residx); 8386 if (ctl_get_prkey(lun, residx) == 0) 8387 lun->pr_key_count++; 8388 ctl_set_prkey(lun, residx, sa_res_key); 8389 lun->pr_generation++; 8390 mtx_unlock(&lun->lun_lock); 8391 8392 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8393 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8394 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8395 persis_io.pr.pr_info.residx = residx; 8396 memcpy(persis_io.pr.pr_info.sa_res_key, 8397 param->serv_act_res_key, 8398 sizeof(param->serv_act_res_key)); 8399 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8400 sizeof(persis_io.pr), M_WAITOK); 8401 } 8402 8403 break; 8404 } 8405 case SPRO_RESERVE: 8406 #if 0 8407 printf("Reserve executed type %d\n", type); 8408 #endif 8409 mtx_lock(&lun->lun_lock); 8410 if (lun->flags & CTL_LUN_PR_RESERVED) { 8411 /* 8412 * if this isn't the reservation holder and it's 8413 * not a "all registrants" type or if the type is 8414 * different then we have a conflict 8415 */ 8416 if ((lun->pr_res_idx != residx 8417 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8418 || lun->pr_res_type != type) { 8419 mtx_unlock(&lun->lun_lock); 8420 free(ctsio->kern_data_ptr, M_CTL); 8421 ctl_set_reservation_conflict(ctsio); 8422 ctl_done((union ctl_io *)ctsio); 8423 return (CTL_RETVAL_COMPLETE); 8424 } 8425 mtx_unlock(&lun->lun_lock); 8426 } else /* create a reservation */ { 8427 /* 8428 * If it's not an "all registrants" type record 8429 * reservation holder 8430 */ 8431 if (type != SPR_TYPE_WR_EX_AR 8432 && type != SPR_TYPE_EX_AC_AR) 8433 lun->pr_res_idx = residx; /* Res holder */ 8434 else 8435 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8436 8437 lun->flags |= CTL_LUN_PR_RESERVED; 8438 lun->pr_res_type = type; 8439 8440 mtx_unlock(&lun->lun_lock); 8441 8442 /* send msg to other side */ 8443 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8444 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8445 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8446 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8447 persis_io.pr.pr_info.res_type = type; 8448 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8449 sizeof(persis_io.pr), M_WAITOK); 8450 } 8451 break; 8452 8453 case SPRO_RELEASE: 8454 mtx_lock(&lun->lun_lock); 8455 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8456 /* No reservation exists return good status */ 8457 mtx_unlock(&lun->lun_lock); 8458 goto done; 8459 } 8460 /* 8461 * Is this nexus a reservation holder? 8462 */ 8463 if (lun->pr_res_idx != residx 8464 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8465 /* 8466 * not a res holder return good status but 8467 * do nothing 8468 */ 8469 mtx_unlock(&lun->lun_lock); 8470 goto done; 8471 } 8472 8473 if (lun->pr_res_type != type) { 8474 mtx_unlock(&lun->lun_lock); 8475 free(ctsio->kern_data_ptr, M_CTL); 8476 ctl_set_illegal_pr_release(ctsio); 8477 ctl_done((union ctl_io *)ctsio); 8478 return (CTL_RETVAL_COMPLETE); 8479 } 8480 8481 /* okay to release */ 8482 lun->flags &= ~CTL_LUN_PR_RESERVED; 8483 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8484 lun->pr_res_type = 0; 8485 8486 /* 8487 * If this isn't an exclusive access reservation and NUAR 8488 * is not set, generate UA for all other registrants. 8489 */ 8490 if (type != SPR_TYPE_EX_AC && type != SPR_TYPE_WR_EX && 8491 (lun->MODE_CTRL.queue_flags & SCP_NUAR) == 0) { 8492 for (i = softc->init_min; i < softc->init_max; i++) { 8493 if (i == residx || ctl_get_prkey(lun, i) == 0) 8494 continue; 8495 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8496 } 8497 } 8498 mtx_unlock(&lun->lun_lock); 8499 8500 /* Send msg to other side */ 8501 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8502 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8503 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8504 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8505 sizeof(persis_io.pr), M_WAITOK); 8506 break; 8507 8508 case SPRO_CLEAR: 8509 /* send msg to other side */ 8510 8511 mtx_lock(&lun->lun_lock); 8512 lun->flags &= ~CTL_LUN_PR_RESERVED; 8513 lun->pr_res_type = 0; 8514 lun->pr_key_count = 0; 8515 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8516 8517 ctl_clr_prkey(lun, residx); 8518 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8519 if (ctl_get_prkey(lun, i) != 0) { 8520 ctl_clr_prkey(lun, i); 8521 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8522 } 8523 lun->pr_generation++; 8524 mtx_unlock(&lun->lun_lock); 8525 8526 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8527 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8528 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8529 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8530 sizeof(persis_io.pr), M_WAITOK); 8531 break; 8532 8533 case SPRO_PREEMPT: 8534 case SPRO_PRE_ABO: { 8535 int nretval; 8536 8537 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8538 residx, ctsio, cdb, param); 8539 if (nretval != 0) 8540 return (CTL_RETVAL_COMPLETE); 8541 break; 8542 } 8543 default: 8544 panic("%s: Invalid PR type %#x", __func__, cdb->action); 8545 } 8546 8547 done: 8548 free(ctsio->kern_data_ptr, M_CTL); 8549 ctl_set_success(ctsio); 8550 ctl_done((union ctl_io *)ctsio); 8551 8552 return (retval); 8553 } 8554 8555 /* 8556 * This routine is for handling a message from the other SC pertaining to 8557 * persistent reserve out. All the error checking will have been done 8558 * so only perorming the action need be done here to keep the two 8559 * in sync. 8560 */ 8561 static void 8562 ctl_hndl_per_res_out_on_other_sc(union ctl_io *io) 8563 { 8564 struct ctl_softc *softc = CTL_SOFTC(io); 8565 union ctl_ha_msg *msg = (union ctl_ha_msg *)&io->presio.pr_msg; 8566 struct ctl_lun *lun; 8567 int i; 8568 uint32_t residx, targ_lun; 8569 8570 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8571 mtx_lock(&softc->ctl_lock); 8572 if (targ_lun >= CTL_MAX_LUNS || 8573 (lun = softc->ctl_luns[targ_lun]) == NULL) { 8574 mtx_unlock(&softc->ctl_lock); 8575 return; 8576 } 8577 mtx_lock(&lun->lun_lock); 8578 mtx_unlock(&softc->ctl_lock); 8579 if (lun->flags & CTL_LUN_DISABLED) { 8580 mtx_unlock(&lun->lun_lock); 8581 return; 8582 } 8583 residx = ctl_get_initindex(&msg->hdr.nexus); 8584 switch(msg->pr.pr_info.action) { 8585 case CTL_PR_REG_KEY: 8586 ctl_alloc_prkey(lun, msg->pr.pr_info.residx); 8587 if (ctl_get_prkey(lun, msg->pr.pr_info.residx) == 0) 8588 lun->pr_key_count++; 8589 ctl_set_prkey(lun, msg->pr.pr_info.residx, 8590 scsi_8btou64(msg->pr.pr_info.sa_res_key)); 8591 lun->pr_generation++; 8592 break; 8593 8594 case CTL_PR_UNREG_KEY: 8595 ctl_clr_prkey(lun, msg->pr.pr_info.residx); 8596 lun->pr_key_count--; 8597 8598 /* XXX Need to see if the reservation has been released */ 8599 /* if so do we need to generate UA? */ 8600 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8601 lun->flags &= ~CTL_LUN_PR_RESERVED; 8602 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8603 8604 if ((lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8605 lun->pr_res_type == SPR_TYPE_EX_AC_RO) && 8606 lun->pr_key_count) { 8607 /* 8608 * If the reservation is a registrants 8609 * only type we need to generate a UA 8610 * for other registered inits. The 8611 * sense code should be RESERVATIONS 8612 * RELEASED 8613 */ 8614 8615 for (i = softc->init_min; i < softc->init_max; i++) { 8616 if (ctl_get_prkey(lun, i) == 0) 8617 continue; 8618 8619 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8620 } 8621 } 8622 lun->pr_res_type = 0; 8623 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8624 if (lun->pr_key_count==0) { 8625 lun->flags &= ~CTL_LUN_PR_RESERVED; 8626 lun->pr_res_type = 0; 8627 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8628 } 8629 } 8630 lun->pr_generation++; 8631 break; 8632 8633 case CTL_PR_RESERVE: 8634 lun->flags |= CTL_LUN_PR_RESERVED; 8635 lun->pr_res_type = msg->pr.pr_info.res_type; 8636 lun->pr_res_idx = msg->pr.pr_info.residx; 8637 8638 break; 8639 8640 case CTL_PR_RELEASE: 8641 /* 8642 * If this isn't an exclusive access reservation and NUAR 8643 * is not set, generate UA for all other registrants. 8644 */ 8645 if (lun->pr_res_type != SPR_TYPE_EX_AC && 8646 lun->pr_res_type != SPR_TYPE_WR_EX && 8647 (lun->MODE_CTRL.queue_flags & SCP_NUAR) == 0) { 8648 for (i = softc->init_min; i < softc->init_max; i++) 8649 if (i == residx || ctl_get_prkey(lun, i) == 0) 8650 continue; 8651 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8652 } 8653 8654 lun->flags &= ~CTL_LUN_PR_RESERVED; 8655 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8656 lun->pr_res_type = 0; 8657 break; 8658 8659 case CTL_PR_PREEMPT: 8660 ctl_pro_preempt_other(lun, msg); 8661 break; 8662 case CTL_PR_CLEAR: 8663 lun->flags &= ~CTL_LUN_PR_RESERVED; 8664 lun->pr_res_type = 0; 8665 lun->pr_key_count = 0; 8666 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8667 8668 for (i=0; i < CTL_MAX_INITIATORS; i++) { 8669 if (ctl_get_prkey(lun, i) == 0) 8670 continue; 8671 ctl_clr_prkey(lun, i); 8672 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8673 } 8674 lun->pr_generation++; 8675 break; 8676 } 8677 8678 mtx_unlock(&lun->lun_lock); 8679 } 8680 8681 int 8682 ctl_read_write(struct ctl_scsiio *ctsio) 8683 { 8684 struct ctl_lun *lun = CTL_LUN(ctsio); 8685 struct ctl_lba_len_flags *lbalen; 8686 uint64_t lba; 8687 uint32_t num_blocks; 8688 int flags, retval; 8689 int isread; 8690 8691 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8692 8693 flags = 0; 8694 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8695 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8696 switch (ctsio->cdb[0]) { 8697 case READ_6: 8698 case WRITE_6: { 8699 struct scsi_rw_6 *cdb; 8700 8701 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8702 8703 lba = scsi_3btoul(cdb->addr); 8704 /* only 5 bits are valid in the most significant address byte */ 8705 lba &= 0x1fffff; 8706 num_blocks = cdb->length; 8707 /* 8708 * This is correct according to SBC-2. 8709 */ 8710 if (num_blocks == 0) 8711 num_blocks = 256; 8712 break; 8713 } 8714 case READ_10: 8715 case WRITE_10: { 8716 struct scsi_rw_10 *cdb; 8717 8718 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8719 if (cdb->byte2 & SRW10_FUA) 8720 flags |= CTL_LLF_FUA; 8721 if (cdb->byte2 & SRW10_DPO) 8722 flags |= CTL_LLF_DPO; 8723 lba = scsi_4btoul(cdb->addr); 8724 num_blocks = scsi_2btoul(cdb->length); 8725 break; 8726 } 8727 case WRITE_VERIFY_10: { 8728 struct scsi_write_verify_10 *cdb; 8729 8730 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8731 flags |= CTL_LLF_FUA; 8732 if (cdb->byte2 & SWV_DPO) 8733 flags |= CTL_LLF_DPO; 8734 lba = scsi_4btoul(cdb->addr); 8735 num_blocks = scsi_2btoul(cdb->length); 8736 break; 8737 } 8738 case READ_12: 8739 case WRITE_12: { 8740 struct scsi_rw_12 *cdb; 8741 8742 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8743 if (cdb->byte2 & SRW12_FUA) 8744 flags |= CTL_LLF_FUA; 8745 if (cdb->byte2 & SRW12_DPO) 8746 flags |= CTL_LLF_DPO; 8747 lba = scsi_4btoul(cdb->addr); 8748 num_blocks = scsi_4btoul(cdb->length); 8749 break; 8750 } 8751 case WRITE_VERIFY_12: { 8752 struct scsi_write_verify_12 *cdb; 8753 8754 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8755 flags |= CTL_LLF_FUA; 8756 if (cdb->byte2 & SWV_DPO) 8757 flags |= CTL_LLF_DPO; 8758 lba = scsi_4btoul(cdb->addr); 8759 num_blocks = scsi_4btoul(cdb->length); 8760 break; 8761 } 8762 case READ_16: 8763 case WRITE_16: { 8764 struct scsi_rw_16 *cdb; 8765 8766 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8767 if (cdb->byte2 & SRW12_FUA) 8768 flags |= CTL_LLF_FUA; 8769 if (cdb->byte2 & SRW12_DPO) 8770 flags |= CTL_LLF_DPO; 8771 lba = scsi_8btou64(cdb->addr); 8772 num_blocks = scsi_4btoul(cdb->length); 8773 break; 8774 } 8775 case WRITE_ATOMIC_16: { 8776 struct scsi_write_atomic_16 *cdb; 8777 8778 if (lun->be_lun->atomicblock == 0) { 8779 ctl_set_invalid_opcode(ctsio); 8780 ctl_done((union ctl_io *)ctsio); 8781 return (CTL_RETVAL_COMPLETE); 8782 } 8783 8784 cdb = (struct scsi_write_atomic_16 *)ctsio->cdb; 8785 if (cdb->byte2 & SRW12_FUA) 8786 flags |= CTL_LLF_FUA; 8787 if (cdb->byte2 & SRW12_DPO) 8788 flags |= CTL_LLF_DPO; 8789 lba = scsi_8btou64(cdb->addr); 8790 num_blocks = scsi_2btoul(cdb->length); 8791 if (num_blocks > lun->be_lun->atomicblock) { 8792 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8793 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8794 /*bit*/ 0); 8795 ctl_done((union ctl_io *)ctsio); 8796 return (CTL_RETVAL_COMPLETE); 8797 } 8798 break; 8799 } 8800 case WRITE_VERIFY_16: { 8801 struct scsi_write_verify_16 *cdb; 8802 8803 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8804 flags |= CTL_LLF_FUA; 8805 if (cdb->byte2 & SWV_DPO) 8806 flags |= CTL_LLF_DPO; 8807 lba = scsi_8btou64(cdb->addr); 8808 num_blocks = scsi_4btoul(cdb->length); 8809 break; 8810 } 8811 default: 8812 /* 8813 * We got a command we don't support. This shouldn't 8814 * happen, commands should be filtered out above us. 8815 */ 8816 ctl_set_invalid_opcode(ctsio); 8817 ctl_done((union ctl_io *)ctsio); 8818 8819 return (CTL_RETVAL_COMPLETE); 8820 break; /* NOTREACHED */ 8821 } 8822 8823 /* 8824 * The first check is to make sure we're in bounds, the second 8825 * check is to catch wrap-around problems. If the lba + num blocks 8826 * is less than the lba, then we've wrapped around and the block 8827 * range is invalid anyway. 8828 */ 8829 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8830 || ((lba + num_blocks) < lba)) { 8831 ctl_set_lba_out_of_range(ctsio, 8832 MAX(lba, lun->be_lun->maxlba + 1)); 8833 ctl_done((union ctl_io *)ctsio); 8834 return (CTL_RETVAL_COMPLETE); 8835 } 8836 8837 /* 8838 * According to SBC-3, a transfer length of 0 is not an error. 8839 * Note that this cannot happen with WRITE(6) or READ(6), since 0 8840 * translates to 256 blocks for those commands. 8841 */ 8842 if (num_blocks == 0) { 8843 ctl_set_success(ctsio); 8844 ctl_done((union ctl_io *)ctsio); 8845 return (CTL_RETVAL_COMPLETE); 8846 } 8847 8848 /* Set FUA and/or DPO if caches are disabled. */ 8849 if (isread) { 8850 if ((lun->MODE_CACHING.flags1 & SCP_RCD) != 0) 8851 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 8852 } else { 8853 if ((lun->MODE_CACHING.flags1 & SCP_WCE) == 0) 8854 flags |= CTL_LLF_FUA; 8855 } 8856 8857 lbalen = (struct ctl_lba_len_flags *) 8858 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8859 lbalen->lba = lba; 8860 lbalen->len = num_blocks; 8861 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 8862 8863 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8864 ctsio->kern_rel_offset = 0; 8865 8866 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 8867 8868 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8869 return (retval); 8870 } 8871 8872 static int 8873 ctl_cnw_cont(union ctl_io *io) 8874 { 8875 struct ctl_lun *lun = CTL_LUN(io); 8876 struct ctl_scsiio *ctsio; 8877 struct ctl_lba_len_flags *lbalen; 8878 int retval; 8879 8880 ctsio = &io->scsiio; 8881 ctsio->io_hdr.status = CTL_STATUS_NONE; 8882 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 8883 lbalen = (struct ctl_lba_len_flags *) 8884 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8885 lbalen->flags &= ~CTL_LLF_COMPARE; 8886 lbalen->flags |= CTL_LLF_WRITE; 8887 8888 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 8889 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8890 return (retval); 8891 } 8892 8893 int 8894 ctl_cnw(struct ctl_scsiio *ctsio) 8895 { 8896 struct ctl_lun *lun = CTL_LUN(ctsio); 8897 struct ctl_lba_len_flags *lbalen; 8898 uint64_t lba; 8899 uint32_t num_blocks; 8900 int flags, retval; 8901 8902 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 8903 8904 flags = 0; 8905 switch (ctsio->cdb[0]) { 8906 case COMPARE_AND_WRITE: { 8907 struct scsi_compare_and_write *cdb; 8908 8909 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 8910 if (cdb->byte2 & SRW10_FUA) 8911 flags |= CTL_LLF_FUA; 8912 if (cdb->byte2 & SRW10_DPO) 8913 flags |= CTL_LLF_DPO; 8914 lba = scsi_8btou64(cdb->addr); 8915 num_blocks = cdb->length; 8916 break; 8917 } 8918 default: 8919 /* 8920 * We got a command we don't support. This shouldn't 8921 * happen, commands should be filtered out above us. 8922 */ 8923 ctl_set_invalid_opcode(ctsio); 8924 ctl_done((union ctl_io *)ctsio); 8925 8926 return (CTL_RETVAL_COMPLETE); 8927 break; /* NOTREACHED */ 8928 } 8929 8930 /* 8931 * The first check is to make sure we're in bounds, the second 8932 * check is to catch wrap-around problems. If the lba + num blocks 8933 * is less than the lba, then we've wrapped around and the block 8934 * range is invalid anyway. 8935 */ 8936 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8937 || ((lba + num_blocks) < lba)) { 8938 ctl_set_lba_out_of_range(ctsio, 8939 MAX(lba, lun->be_lun->maxlba + 1)); 8940 ctl_done((union ctl_io *)ctsio); 8941 return (CTL_RETVAL_COMPLETE); 8942 } 8943 8944 /* 8945 * According to SBC-3, a transfer length of 0 is not an error. 8946 */ 8947 if (num_blocks == 0) { 8948 ctl_set_success(ctsio); 8949 ctl_done((union ctl_io *)ctsio); 8950 return (CTL_RETVAL_COMPLETE); 8951 } 8952 8953 /* Set FUA if write cache is disabled. */ 8954 if ((lun->MODE_CACHING.flags1 & SCP_WCE) == 0) 8955 flags |= CTL_LLF_FUA; 8956 8957 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 8958 ctsio->kern_rel_offset = 0; 8959 8960 /* 8961 * Set the IO_CONT flag, so that if this I/O gets passed to 8962 * ctl_data_submit_done(), it'll get passed back to 8963 * ctl_ctl_cnw_cont() for further processing. 8964 */ 8965 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 8966 ctsio->io_cont = ctl_cnw_cont; 8967 8968 lbalen = (struct ctl_lba_len_flags *) 8969 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8970 lbalen->lba = lba; 8971 lbalen->len = num_blocks; 8972 lbalen->flags = CTL_LLF_COMPARE | flags; 8973 8974 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 8975 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8976 return (retval); 8977 } 8978 8979 int 8980 ctl_verify(struct ctl_scsiio *ctsio) 8981 { 8982 struct ctl_lun *lun = CTL_LUN(ctsio); 8983 struct ctl_lba_len_flags *lbalen; 8984 uint64_t lba; 8985 uint32_t num_blocks; 8986 int bytchk, flags; 8987 int retval; 8988 8989 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 8990 8991 bytchk = 0; 8992 flags = CTL_LLF_FUA; 8993 switch (ctsio->cdb[0]) { 8994 case VERIFY_10: { 8995 struct scsi_verify_10 *cdb; 8996 8997 cdb = (struct scsi_verify_10 *)ctsio->cdb; 8998 if (cdb->byte2 & SVFY_BYTCHK) 8999 bytchk = 1; 9000 if (cdb->byte2 & SVFY_DPO) 9001 flags |= CTL_LLF_DPO; 9002 lba = scsi_4btoul(cdb->addr); 9003 num_blocks = scsi_2btoul(cdb->length); 9004 break; 9005 } 9006 case VERIFY_12: { 9007 struct scsi_verify_12 *cdb; 9008 9009 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9010 if (cdb->byte2 & SVFY_BYTCHK) 9011 bytchk = 1; 9012 if (cdb->byte2 & SVFY_DPO) 9013 flags |= CTL_LLF_DPO; 9014 lba = scsi_4btoul(cdb->addr); 9015 num_blocks = scsi_4btoul(cdb->length); 9016 break; 9017 } 9018 case VERIFY_16: { 9019 struct scsi_rw_16 *cdb; 9020 9021 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9022 if (cdb->byte2 & SVFY_BYTCHK) 9023 bytchk = 1; 9024 if (cdb->byte2 & SVFY_DPO) 9025 flags |= CTL_LLF_DPO; 9026 lba = scsi_8btou64(cdb->addr); 9027 num_blocks = scsi_4btoul(cdb->length); 9028 break; 9029 } 9030 default: 9031 /* 9032 * We got a command we don't support. This shouldn't 9033 * happen, commands should be filtered out above us. 9034 */ 9035 ctl_set_invalid_opcode(ctsio); 9036 ctl_done((union ctl_io *)ctsio); 9037 return (CTL_RETVAL_COMPLETE); 9038 } 9039 9040 /* 9041 * The first check is to make sure we're in bounds, the second 9042 * check is to catch wrap-around problems. If the lba + num blocks 9043 * is less than the lba, then we've wrapped around and the block 9044 * range is invalid anyway. 9045 */ 9046 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9047 || ((lba + num_blocks) < lba)) { 9048 ctl_set_lba_out_of_range(ctsio, 9049 MAX(lba, lun->be_lun->maxlba + 1)); 9050 ctl_done((union ctl_io *)ctsio); 9051 return (CTL_RETVAL_COMPLETE); 9052 } 9053 9054 /* 9055 * According to SBC-3, a transfer length of 0 is not an error. 9056 */ 9057 if (num_blocks == 0) { 9058 ctl_set_success(ctsio); 9059 ctl_done((union ctl_io *)ctsio); 9060 return (CTL_RETVAL_COMPLETE); 9061 } 9062 9063 lbalen = (struct ctl_lba_len_flags *) 9064 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9065 lbalen->lba = lba; 9066 lbalen->len = num_blocks; 9067 if (bytchk) { 9068 lbalen->flags = CTL_LLF_COMPARE | flags; 9069 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9070 } else { 9071 lbalen->flags = CTL_LLF_VERIFY | flags; 9072 ctsio->kern_total_len = 0; 9073 } 9074 ctsio->kern_rel_offset = 0; 9075 9076 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9077 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9078 return (retval); 9079 } 9080 9081 int 9082 ctl_report_luns(struct ctl_scsiio *ctsio) 9083 { 9084 struct ctl_softc *softc = CTL_SOFTC(ctsio); 9085 struct ctl_port *port = CTL_PORT(ctsio); 9086 struct ctl_lun *lun, *request_lun = CTL_LUN(ctsio); 9087 struct scsi_report_luns *cdb; 9088 struct scsi_report_luns_data *lun_data; 9089 int num_filled, num_luns, num_port_luns, retval; 9090 uint32_t alloc_len, lun_datalen; 9091 uint32_t initidx, targ_lun_id, lun_id; 9092 9093 retval = CTL_RETVAL_COMPLETE; 9094 cdb = (struct scsi_report_luns *)ctsio->cdb; 9095 9096 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9097 9098 num_luns = 0; 9099 num_port_luns = port->lun_map ? port->lun_map_size : CTL_MAX_LUNS; 9100 mtx_lock(&softc->ctl_lock); 9101 for (targ_lun_id = 0; targ_lun_id < num_port_luns; targ_lun_id++) { 9102 if (ctl_lun_map_from_port(port, targ_lun_id) != UINT32_MAX) 9103 num_luns++; 9104 } 9105 mtx_unlock(&softc->ctl_lock); 9106 9107 switch (cdb->select_report) { 9108 case RPL_REPORT_DEFAULT: 9109 case RPL_REPORT_ALL: 9110 case RPL_REPORT_NONSUBSID: 9111 break; 9112 case RPL_REPORT_WELLKNOWN: 9113 case RPL_REPORT_ADMIN: 9114 case RPL_REPORT_CONGLOM: 9115 num_luns = 0; 9116 break; 9117 default: 9118 ctl_set_invalid_field(ctsio, 9119 /*sks_valid*/ 1, 9120 /*command*/ 1, 9121 /*field*/ 2, 9122 /*bit_valid*/ 0, 9123 /*bit*/ 0); 9124 ctl_done((union ctl_io *)ctsio); 9125 return (retval); 9126 break; /* NOTREACHED */ 9127 } 9128 9129 alloc_len = scsi_4btoul(cdb->length); 9130 /* 9131 * The initiator has to allocate at least 16 bytes for this request, 9132 * so he can at least get the header and the first LUN. Otherwise 9133 * we reject the request (per SPC-3 rev 14, section 6.21). 9134 */ 9135 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9136 sizeof(struct scsi_report_luns_lundata))) { 9137 ctl_set_invalid_field(ctsio, 9138 /*sks_valid*/ 1, 9139 /*command*/ 1, 9140 /*field*/ 6, 9141 /*bit_valid*/ 0, 9142 /*bit*/ 0); 9143 ctl_done((union ctl_io *)ctsio); 9144 return (retval); 9145 } 9146 9147 lun_datalen = sizeof(*lun_data) + 9148 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9149 9150 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9151 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9152 ctsio->kern_sg_entries = 0; 9153 9154 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9155 9156 mtx_lock(&softc->ctl_lock); 9157 for (targ_lun_id = 0, num_filled = 0; 9158 targ_lun_id < num_port_luns && num_filled < num_luns; 9159 targ_lun_id++) { 9160 lun_id = ctl_lun_map_from_port(port, targ_lun_id); 9161 if (lun_id == UINT32_MAX) 9162 continue; 9163 lun = softc->ctl_luns[lun_id]; 9164 if (lun == NULL) 9165 continue; 9166 9167 be64enc(lun_data->luns[num_filled++].lundata, 9168 ctl_encode_lun(targ_lun_id)); 9169 9170 /* 9171 * According to SPC-3, rev 14 section 6.21: 9172 * 9173 * "The execution of a REPORT LUNS command to any valid and 9174 * installed logical unit shall clear the REPORTED LUNS DATA 9175 * HAS CHANGED unit attention condition for all logical 9176 * units of that target with respect to the requesting 9177 * initiator. A valid and installed logical unit is one 9178 * having a PERIPHERAL QUALIFIER of 000b in the standard 9179 * INQUIRY data (see 6.4.2)." 9180 * 9181 * If request_lun is NULL, the LUN this report luns command 9182 * was issued to is either disabled or doesn't exist. In that 9183 * case, we shouldn't clear any pending lun change unit 9184 * attention. 9185 */ 9186 if (request_lun != NULL) { 9187 mtx_lock(&lun->lun_lock); 9188 ctl_clr_ua(lun, initidx, CTL_UA_LUN_CHANGE); 9189 mtx_unlock(&lun->lun_lock); 9190 } 9191 } 9192 mtx_unlock(&softc->ctl_lock); 9193 9194 /* 9195 * It's quite possible that we've returned fewer LUNs than we allocated 9196 * space for. Trim it. 9197 */ 9198 lun_datalen = sizeof(*lun_data) + 9199 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9200 9201 if (lun_datalen < alloc_len) { 9202 ctsio->residual = alloc_len - lun_datalen; 9203 ctsio->kern_data_len = lun_datalen; 9204 ctsio->kern_total_len = lun_datalen; 9205 } else { 9206 ctsio->residual = 0; 9207 ctsio->kern_data_len = alloc_len; 9208 ctsio->kern_total_len = alloc_len; 9209 } 9210 ctsio->kern_data_resid = 0; 9211 ctsio->kern_rel_offset = 0; 9212 ctsio->kern_sg_entries = 0; 9213 9214 /* 9215 * We set this to the actual data length, regardless of how much 9216 * space we actually have to return results. If the user looks at 9217 * this value, he'll know whether or not he allocated enough space 9218 * and reissue the command if necessary. We don't support well 9219 * known logical units, so if the user asks for that, return none. 9220 */ 9221 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9222 9223 /* 9224 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9225 * this request. 9226 */ 9227 ctl_set_success(ctsio); 9228 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9229 ctsio->be_move_done = ctl_config_move_done; 9230 ctl_datamove((union ctl_io *)ctsio); 9231 return (retval); 9232 } 9233 9234 int 9235 ctl_request_sense(struct ctl_scsiio *ctsio) 9236 { 9237 struct ctl_softc *softc = CTL_SOFTC(ctsio); 9238 struct ctl_lun *lun = CTL_LUN(ctsio); 9239 struct scsi_request_sense *cdb; 9240 struct scsi_sense_data *sense_ptr; 9241 uint32_t initidx; 9242 int have_error; 9243 u_int sense_len = SSD_FULL_SIZE; 9244 scsi_sense_data_type sense_format; 9245 ctl_ua_type ua_type; 9246 uint8_t asc = 0, ascq = 0; 9247 9248 cdb = (struct scsi_request_sense *)ctsio->cdb; 9249 9250 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9251 9252 /* 9253 * Determine which sense format the user wants. 9254 */ 9255 if (cdb->byte2 & SRS_DESC) 9256 sense_format = SSD_TYPE_DESC; 9257 else 9258 sense_format = SSD_TYPE_FIXED; 9259 9260 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9261 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9262 ctsio->kern_sg_entries = 0; 9263 9264 /* 9265 * struct scsi_sense_data, which is currently set to 256 bytes, is 9266 * larger than the largest allowed value for the length field in the 9267 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9268 */ 9269 ctsio->residual = 0; 9270 ctsio->kern_data_len = cdb->length; 9271 ctsio->kern_total_len = cdb->length; 9272 9273 ctsio->kern_data_resid = 0; 9274 ctsio->kern_rel_offset = 0; 9275 ctsio->kern_sg_entries = 0; 9276 9277 /* 9278 * If we don't have a LUN, we don't have any pending sense. 9279 */ 9280 if (lun == NULL || 9281 ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 9282 softc->ha_link < CTL_HA_LINK_UNKNOWN)) { 9283 /* "Logical unit not supported" */ 9284 ctl_set_sense_data(sense_ptr, &sense_len, NULL, sense_format, 9285 /*current_error*/ 1, 9286 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 9287 /*asc*/ 0x25, 9288 /*ascq*/ 0x00, 9289 SSD_ELEM_NONE); 9290 goto send; 9291 } 9292 9293 have_error = 0; 9294 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9295 /* 9296 * Check for pending sense, and then for pending unit attentions. 9297 * Pending sense gets returned first, then pending unit attentions. 9298 */ 9299 mtx_lock(&lun->lun_lock); 9300 #ifdef CTL_WITH_CA 9301 if (ctl_is_set(lun->have_ca, initidx)) { 9302 scsi_sense_data_type stored_format; 9303 9304 /* 9305 * Check to see which sense format was used for the stored 9306 * sense data. 9307 */ 9308 stored_format = scsi_sense_type(&lun->pending_sense[initidx]); 9309 9310 /* 9311 * If the user requested a different sense format than the 9312 * one we stored, then we need to convert it to the other 9313 * format. If we're going from descriptor to fixed format 9314 * sense data, we may lose things in translation, depending 9315 * on what options were used. 9316 * 9317 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9318 * for some reason we'll just copy it out as-is. 9319 */ 9320 if ((stored_format == SSD_TYPE_FIXED) 9321 && (sense_format == SSD_TYPE_DESC)) 9322 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9323 &lun->pending_sense[initidx], 9324 (struct scsi_sense_data_desc *)sense_ptr); 9325 else if ((stored_format == SSD_TYPE_DESC) 9326 && (sense_format == SSD_TYPE_FIXED)) 9327 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9328 &lun->pending_sense[initidx], 9329 (struct scsi_sense_data_fixed *)sense_ptr); 9330 else 9331 memcpy(sense_ptr, &lun->pending_sense[initidx], 9332 MIN(sizeof(*sense_ptr), 9333 sizeof(lun->pending_sense[initidx]))); 9334 9335 ctl_clear_mask(lun->have_ca, initidx); 9336 have_error = 1; 9337 } else 9338 #endif 9339 if (have_error == 0) { 9340 ua_type = ctl_build_ua(lun, initidx, sense_ptr, &sense_len, 9341 sense_format); 9342 if (ua_type != CTL_UA_NONE) 9343 have_error = 1; 9344 } 9345 if (have_error == 0) { 9346 /* 9347 * Report informational exception if have one and allowed. 9348 */ 9349 if (lun->MODE_IE.mrie != SIEP_MRIE_NO) { 9350 asc = lun->ie_asc; 9351 ascq = lun->ie_ascq; 9352 } 9353 ctl_set_sense_data(sense_ptr, &sense_len, lun, sense_format, 9354 /*current_error*/ 1, 9355 /*sense_key*/ SSD_KEY_NO_SENSE, 9356 /*asc*/ asc, 9357 /*ascq*/ ascq, 9358 SSD_ELEM_NONE); 9359 } 9360 mtx_unlock(&lun->lun_lock); 9361 9362 send: 9363 /* 9364 * We report the SCSI status as OK, since the status of the command 9365 * itself is OK. We're reporting sense as parameter data. 9366 */ 9367 ctl_set_success(ctsio); 9368 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9369 ctsio->be_move_done = ctl_config_move_done; 9370 ctl_datamove((union ctl_io *)ctsio); 9371 return (CTL_RETVAL_COMPLETE); 9372 } 9373 9374 int 9375 ctl_tur(struct ctl_scsiio *ctsio) 9376 { 9377 9378 CTL_DEBUG_PRINT(("ctl_tur\n")); 9379 9380 ctl_set_success(ctsio); 9381 ctl_done((union ctl_io *)ctsio); 9382 9383 return (CTL_RETVAL_COMPLETE); 9384 } 9385 9386 /* 9387 * SCSI VPD page 0x00, the Supported VPD Pages page. 9388 */ 9389 static int 9390 ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9391 { 9392 struct ctl_lun *lun = CTL_LUN(ctsio); 9393 struct scsi_vpd_supported_pages *pages; 9394 int sup_page_size; 9395 int p; 9396 9397 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9398 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9399 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9400 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9401 ctsio->kern_sg_entries = 0; 9402 9403 if (sup_page_size < alloc_len) { 9404 ctsio->residual = alloc_len - sup_page_size; 9405 ctsio->kern_data_len = sup_page_size; 9406 ctsio->kern_total_len = sup_page_size; 9407 } else { 9408 ctsio->residual = 0; 9409 ctsio->kern_data_len = alloc_len; 9410 ctsio->kern_total_len = alloc_len; 9411 } 9412 ctsio->kern_data_resid = 0; 9413 ctsio->kern_rel_offset = 0; 9414 ctsio->kern_sg_entries = 0; 9415 9416 /* 9417 * The control device is always connected. The disk device, on the 9418 * other hand, may not be online all the time. Need to change this 9419 * to figure out whether the disk device is actually online or not. 9420 */ 9421 if (lun != NULL) 9422 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9423 lun->be_lun->lun_type; 9424 else 9425 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9426 9427 p = 0; 9428 /* Supported VPD pages */ 9429 pages->page_list[p++] = SVPD_SUPPORTED_PAGES; 9430 /* Serial Number */ 9431 pages->page_list[p++] = SVPD_UNIT_SERIAL_NUMBER; 9432 /* Device Identification */ 9433 pages->page_list[p++] = SVPD_DEVICE_ID; 9434 /* Extended INQUIRY Data */ 9435 pages->page_list[p++] = SVPD_EXTENDED_INQUIRY_DATA; 9436 /* Mode Page Policy */ 9437 pages->page_list[p++] = SVPD_MODE_PAGE_POLICY; 9438 /* SCSI Ports */ 9439 pages->page_list[p++] = SVPD_SCSI_PORTS; 9440 /* Third-party Copy */ 9441 pages->page_list[p++] = SVPD_SCSI_TPC; 9442 if (lun != NULL && lun->be_lun->lun_type == T_DIRECT) { 9443 /* Block limits */ 9444 pages->page_list[p++] = SVPD_BLOCK_LIMITS; 9445 /* Block Device Characteristics */ 9446 pages->page_list[p++] = SVPD_BDC; 9447 /* Logical Block Provisioning */ 9448 pages->page_list[p++] = SVPD_LBP; 9449 } 9450 pages->length = p; 9451 9452 ctl_set_success(ctsio); 9453 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9454 ctsio->be_move_done = ctl_config_move_done; 9455 ctl_datamove((union ctl_io *)ctsio); 9456 return (CTL_RETVAL_COMPLETE); 9457 } 9458 9459 /* 9460 * SCSI VPD page 0x80, the Unit Serial Number page. 9461 */ 9462 static int 9463 ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9464 { 9465 struct ctl_lun *lun = CTL_LUN(ctsio); 9466 struct scsi_vpd_unit_serial_number *sn_ptr; 9467 int data_len; 9468 9469 data_len = 4 + CTL_SN_LEN; 9470 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9471 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9472 if (data_len < alloc_len) { 9473 ctsio->residual = alloc_len - data_len; 9474 ctsio->kern_data_len = data_len; 9475 ctsio->kern_total_len = data_len; 9476 } else { 9477 ctsio->residual = 0; 9478 ctsio->kern_data_len = alloc_len; 9479 ctsio->kern_total_len = alloc_len; 9480 } 9481 ctsio->kern_data_resid = 0; 9482 ctsio->kern_rel_offset = 0; 9483 ctsio->kern_sg_entries = 0; 9484 9485 /* 9486 * The control device is always connected. The disk device, on the 9487 * other hand, may not be online all the time. Need to change this 9488 * to figure out whether the disk device is actually online or not. 9489 */ 9490 if (lun != NULL) 9491 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9492 lun->be_lun->lun_type; 9493 else 9494 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9495 9496 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9497 sn_ptr->length = CTL_SN_LEN; 9498 /* 9499 * If we don't have a LUN, we just leave the serial number as 9500 * all spaces. 9501 */ 9502 if (lun != NULL) { 9503 strncpy((char *)sn_ptr->serial_num, 9504 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9505 } else 9506 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9507 9508 ctl_set_success(ctsio); 9509 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9510 ctsio->be_move_done = ctl_config_move_done; 9511 ctl_datamove((union ctl_io *)ctsio); 9512 return (CTL_RETVAL_COMPLETE); 9513 } 9514 9515 9516 /* 9517 * SCSI VPD page 0x86, the Extended INQUIRY Data page. 9518 */ 9519 static int 9520 ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9521 { 9522 struct ctl_lun *lun = CTL_LUN(ctsio); 9523 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9524 int data_len; 9525 9526 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9527 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9528 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9529 ctsio->kern_sg_entries = 0; 9530 9531 if (data_len < alloc_len) { 9532 ctsio->residual = alloc_len - data_len; 9533 ctsio->kern_data_len = data_len; 9534 ctsio->kern_total_len = data_len; 9535 } else { 9536 ctsio->residual = 0; 9537 ctsio->kern_data_len = alloc_len; 9538 ctsio->kern_total_len = alloc_len; 9539 } 9540 ctsio->kern_data_resid = 0; 9541 ctsio->kern_rel_offset = 0; 9542 ctsio->kern_sg_entries = 0; 9543 9544 /* 9545 * The control device is always connected. The disk device, on the 9546 * other hand, may not be online all the time. 9547 */ 9548 if (lun != NULL) 9549 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9550 lun->be_lun->lun_type; 9551 else 9552 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9553 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9554 scsi_ulto2b(data_len - 4, eid_ptr->page_length); 9555 /* 9556 * We support head of queue, ordered and simple tags. 9557 */ 9558 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9559 /* 9560 * Volatile cache supported. 9561 */ 9562 eid_ptr->flags3 = SVPD_EID_V_SUP; 9563 9564 /* 9565 * This means that we clear the REPORTED LUNS DATA HAS CHANGED unit 9566 * attention for a particular IT nexus on all LUNs once we report 9567 * it to that nexus once. This bit is required as of SPC-4. 9568 */ 9569 eid_ptr->flags4 = SVPD_EID_LUICLR; 9570 9571 /* 9572 * We support revert to defaults (RTD) bit in MODE SELECT. 9573 */ 9574 eid_ptr->flags5 = SVPD_EID_RTD_SUP; 9575 9576 /* 9577 * XXX KDM in order to correctly answer this, we would need 9578 * information from the SIM to determine how much sense data it 9579 * can send. So this would really be a path inquiry field, most 9580 * likely. This can be set to a maximum of 252 according to SPC-4, 9581 * but the hardware may or may not be able to support that much. 9582 * 0 just means that the maximum sense data length is not reported. 9583 */ 9584 eid_ptr->max_sense_length = 0; 9585 9586 ctl_set_success(ctsio); 9587 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9588 ctsio->be_move_done = ctl_config_move_done; 9589 ctl_datamove((union ctl_io *)ctsio); 9590 return (CTL_RETVAL_COMPLETE); 9591 } 9592 9593 static int 9594 ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9595 { 9596 struct ctl_lun *lun = CTL_LUN(ctsio); 9597 struct scsi_vpd_mode_page_policy *mpp_ptr; 9598 int data_len; 9599 9600 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9601 sizeof(struct scsi_vpd_mode_page_policy_descr); 9602 9603 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9604 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9605 ctsio->kern_sg_entries = 0; 9606 9607 if (data_len < alloc_len) { 9608 ctsio->residual = alloc_len - data_len; 9609 ctsio->kern_data_len = data_len; 9610 ctsio->kern_total_len = data_len; 9611 } else { 9612 ctsio->residual = 0; 9613 ctsio->kern_data_len = alloc_len; 9614 ctsio->kern_total_len = alloc_len; 9615 } 9616 ctsio->kern_data_resid = 0; 9617 ctsio->kern_rel_offset = 0; 9618 ctsio->kern_sg_entries = 0; 9619 9620 /* 9621 * The control device is always connected. The disk device, on the 9622 * other hand, may not be online all the time. 9623 */ 9624 if (lun != NULL) 9625 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9626 lun->be_lun->lun_type; 9627 else 9628 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9629 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9630 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9631 mpp_ptr->descr[0].page_code = 0x3f; 9632 mpp_ptr->descr[0].subpage_code = 0xff; 9633 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9634 9635 ctl_set_success(ctsio); 9636 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9637 ctsio->be_move_done = ctl_config_move_done; 9638 ctl_datamove((union ctl_io *)ctsio); 9639 return (CTL_RETVAL_COMPLETE); 9640 } 9641 9642 /* 9643 * SCSI VPD page 0x83, the Device Identification page. 9644 */ 9645 static int 9646 ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9647 { 9648 struct ctl_softc *softc = CTL_SOFTC(ctsio); 9649 struct ctl_port *port = CTL_PORT(ctsio); 9650 struct ctl_lun *lun = CTL_LUN(ctsio); 9651 struct scsi_vpd_device_id *devid_ptr; 9652 struct scsi_vpd_id_descriptor *desc; 9653 int data_len, g; 9654 uint8_t proto; 9655 9656 data_len = sizeof(struct scsi_vpd_device_id) + 9657 sizeof(struct scsi_vpd_id_descriptor) + 9658 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9659 sizeof(struct scsi_vpd_id_descriptor) + 9660 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9661 if (lun && lun->lun_devid) 9662 data_len += lun->lun_devid->len; 9663 if (port && port->port_devid) 9664 data_len += port->port_devid->len; 9665 if (port && port->target_devid) 9666 data_len += port->target_devid->len; 9667 9668 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9669 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9670 ctsio->kern_sg_entries = 0; 9671 9672 if (data_len < alloc_len) { 9673 ctsio->residual = alloc_len - data_len; 9674 ctsio->kern_data_len = data_len; 9675 ctsio->kern_total_len = data_len; 9676 } else { 9677 ctsio->residual = 0; 9678 ctsio->kern_data_len = alloc_len; 9679 ctsio->kern_total_len = alloc_len; 9680 } 9681 ctsio->kern_data_resid = 0; 9682 ctsio->kern_rel_offset = 0; 9683 ctsio->kern_sg_entries = 0; 9684 9685 /* 9686 * The control device is always connected. The disk device, on the 9687 * other hand, may not be online all the time. 9688 */ 9689 if (lun != NULL) 9690 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9691 lun->be_lun->lun_type; 9692 else 9693 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9694 devid_ptr->page_code = SVPD_DEVICE_ID; 9695 scsi_ulto2b(data_len - 4, devid_ptr->length); 9696 9697 if (port && port->port_type == CTL_PORT_FC) 9698 proto = SCSI_PROTO_FC << 4; 9699 else if (port && port->port_type == CTL_PORT_ISCSI) 9700 proto = SCSI_PROTO_ISCSI << 4; 9701 else 9702 proto = SCSI_PROTO_SPI << 4; 9703 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9704 9705 /* 9706 * We're using a LUN association here. i.e., this device ID is a 9707 * per-LUN identifier. 9708 */ 9709 if (lun && lun->lun_devid) { 9710 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9711 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9712 lun->lun_devid->len); 9713 } 9714 9715 /* 9716 * This is for the WWPN which is a port association. 9717 */ 9718 if (port && port->port_devid) { 9719 memcpy(desc, port->port_devid->data, port->port_devid->len); 9720 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9721 port->port_devid->len); 9722 } 9723 9724 /* 9725 * This is for the Relative Target Port(type 4h) identifier 9726 */ 9727 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9728 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9729 SVPD_ID_TYPE_RELTARG; 9730 desc->length = 4; 9731 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9732 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9733 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9734 9735 /* 9736 * This is for the Target Port Group(type 5h) identifier 9737 */ 9738 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9739 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9740 SVPD_ID_TYPE_TPORTGRP; 9741 desc->length = 4; 9742 if (softc->is_single || 9743 (port && port->status & CTL_PORT_STATUS_HA_SHARED)) 9744 g = 1; 9745 else 9746 g = 2 + ctsio->io_hdr.nexus.targ_port / softc->port_cnt; 9747 scsi_ulto2b(g, &desc->identifier[2]); 9748 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9749 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9750 9751 /* 9752 * This is for the Target identifier 9753 */ 9754 if (port && port->target_devid) { 9755 memcpy(desc, port->target_devid->data, port->target_devid->len); 9756 } 9757 9758 ctl_set_success(ctsio); 9759 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9760 ctsio->be_move_done = ctl_config_move_done; 9761 ctl_datamove((union ctl_io *)ctsio); 9762 return (CTL_RETVAL_COMPLETE); 9763 } 9764 9765 static int 9766 ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9767 { 9768 struct ctl_softc *softc = CTL_SOFTC(ctsio); 9769 struct ctl_lun *lun = CTL_LUN(ctsio); 9770 struct scsi_vpd_scsi_ports *sp; 9771 struct scsi_vpd_port_designation *pd; 9772 struct scsi_vpd_port_designation_cont *pdc; 9773 struct ctl_port *port; 9774 int data_len, num_target_ports, iid_len, id_len; 9775 9776 num_target_ports = 0; 9777 iid_len = 0; 9778 id_len = 0; 9779 mtx_lock(&softc->ctl_lock); 9780 STAILQ_FOREACH(port, &softc->port_list, links) { 9781 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9782 continue; 9783 if (lun != NULL && 9784 ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 9785 continue; 9786 num_target_ports++; 9787 if (port->init_devid) 9788 iid_len += port->init_devid->len; 9789 if (port->port_devid) 9790 id_len += port->port_devid->len; 9791 } 9792 mtx_unlock(&softc->ctl_lock); 9793 9794 data_len = sizeof(struct scsi_vpd_scsi_ports) + 9795 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 9796 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 9797 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9798 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 9799 ctsio->kern_sg_entries = 0; 9800 9801 if (data_len < alloc_len) { 9802 ctsio->residual = alloc_len - data_len; 9803 ctsio->kern_data_len = data_len; 9804 ctsio->kern_total_len = data_len; 9805 } else { 9806 ctsio->residual = 0; 9807 ctsio->kern_data_len = alloc_len; 9808 ctsio->kern_total_len = alloc_len; 9809 } 9810 ctsio->kern_data_resid = 0; 9811 ctsio->kern_rel_offset = 0; 9812 ctsio->kern_sg_entries = 0; 9813 9814 /* 9815 * The control device is always connected. The disk device, on the 9816 * other hand, may not be online all the time. Need to change this 9817 * to figure out whether the disk device is actually online or not. 9818 */ 9819 if (lun != NULL) 9820 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 9821 lun->be_lun->lun_type; 9822 else 9823 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9824 9825 sp->page_code = SVPD_SCSI_PORTS; 9826 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 9827 sp->page_length); 9828 pd = &sp->design[0]; 9829 9830 mtx_lock(&softc->ctl_lock); 9831 STAILQ_FOREACH(port, &softc->port_list, links) { 9832 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9833 continue; 9834 if (lun != NULL && 9835 ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 9836 continue; 9837 scsi_ulto2b(port->targ_port, pd->relative_port_id); 9838 if (port->init_devid) { 9839 iid_len = port->init_devid->len; 9840 memcpy(pd->initiator_transportid, 9841 port->init_devid->data, port->init_devid->len); 9842 } else 9843 iid_len = 0; 9844 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 9845 pdc = (struct scsi_vpd_port_designation_cont *) 9846 (&pd->initiator_transportid[iid_len]); 9847 if (port->port_devid) { 9848 id_len = port->port_devid->len; 9849 memcpy(pdc->target_port_descriptors, 9850 port->port_devid->data, port->port_devid->len); 9851 } else 9852 id_len = 0; 9853 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 9854 pd = (struct scsi_vpd_port_designation *) 9855 ((uint8_t *)pdc->target_port_descriptors + id_len); 9856 } 9857 mtx_unlock(&softc->ctl_lock); 9858 9859 ctl_set_success(ctsio); 9860 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9861 ctsio->be_move_done = ctl_config_move_done; 9862 ctl_datamove((union ctl_io *)ctsio); 9863 return (CTL_RETVAL_COMPLETE); 9864 } 9865 9866 static int 9867 ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 9868 { 9869 struct ctl_lun *lun = CTL_LUN(ctsio); 9870 struct scsi_vpd_block_limits *bl_ptr; 9871 uint64_t ival; 9872 9873 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 9874 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 9875 ctsio->kern_sg_entries = 0; 9876 9877 if (sizeof(*bl_ptr) < alloc_len) { 9878 ctsio->residual = alloc_len - sizeof(*bl_ptr); 9879 ctsio->kern_data_len = sizeof(*bl_ptr); 9880 ctsio->kern_total_len = sizeof(*bl_ptr); 9881 } else { 9882 ctsio->residual = 0; 9883 ctsio->kern_data_len = alloc_len; 9884 ctsio->kern_total_len = alloc_len; 9885 } 9886 ctsio->kern_data_resid = 0; 9887 ctsio->kern_rel_offset = 0; 9888 ctsio->kern_sg_entries = 0; 9889 9890 /* 9891 * The control device is always connected. The disk device, on the 9892 * other hand, may not be online all the time. Need to change this 9893 * to figure out whether the disk device is actually online or not. 9894 */ 9895 if (lun != NULL) 9896 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9897 lun->be_lun->lun_type; 9898 else 9899 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9900 9901 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 9902 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 9903 bl_ptr->max_cmp_write_len = 0xff; 9904 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 9905 if (lun != NULL) { 9906 scsi_ulto4b(lun->be_lun->opttxferlen, bl_ptr->opt_txfer_len); 9907 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9908 ival = 0xffffffff; 9909 ctl_get_opt_number(&lun->be_lun->options, 9910 "unmap_max_lba", &ival); 9911 scsi_ulto4b(ival, bl_ptr->max_unmap_lba_cnt); 9912 ival = 0xffffffff; 9913 ctl_get_opt_number(&lun->be_lun->options, 9914 "unmap_max_descr", &ival); 9915 scsi_ulto4b(ival, bl_ptr->max_unmap_blk_cnt); 9916 if (lun->be_lun->ublockexp != 0) { 9917 scsi_ulto4b((1 << lun->be_lun->ublockexp), 9918 bl_ptr->opt_unmap_grain); 9919 scsi_ulto4b(0x80000000 | lun->be_lun->ublockoff, 9920 bl_ptr->unmap_grain_align); 9921 } 9922 } 9923 scsi_ulto4b(lun->be_lun->atomicblock, 9924 bl_ptr->max_atomic_transfer_length); 9925 scsi_ulto4b(0, bl_ptr->atomic_alignment); 9926 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 9927 scsi_ulto4b(0, bl_ptr->max_atomic_transfer_length_with_atomic_boundary); 9928 scsi_ulto4b(0, bl_ptr->max_atomic_boundary_size); 9929 ival = UINT64_MAX; 9930 ctl_get_opt_number(&lun->be_lun->options, "write_same_max_lba", &ival); 9931 scsi_u64to8b(ival, bl_ptr->max_write_same_length); 9932 } 9933 9934 ctl_set_success(ctsio); 9935 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9936 ctsio->be_move_done = ctl_config_move_done; 9937 ctl_datamove((union ctl_io *)ctsio); 9938 return (CTL_RETVAL_COMPLETE); 9939 } 9940 9941 static int 9942 ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 9943 { 9944 struct ctl_lun *lun = CTL_LUN(ctsio); 9945 struct scsi_vpd_block_device_characteristics *bdc_ptr; 9946 const char *value; 9947 u_int i; 9948 9949 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 9950 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 9951 ctsio->kern_sg_entries = 0; 9952 9953 if (sizeof(*bdc_ptr) < alloc_len) { 9954 ctsio->residual = alloc_len - sizeof(*bdc_ptr); 9955 ctsio->kern_data_len = sizeof(*bdc_ptr); 9956 ctsio->kern_total_len = sizeof(*bdc_ptr); 9957 } else { 9958 ctsio->residual = 0; 9959 ctsio->kern_data_len = alloc_len; 9960 ctsio->kern_total_len = alloc_len; 9961 } 9962 ctsio->kern_data_resid = 0; 9963 ctsio->kern_rel_offset = 0; 9964 ctsio->kern_sg_entries = 0; 9965 9966 /* 9967 * The control device is always connected. The disk device, on the 9968 * other hand, may not be online all the time. Need to change this 9969 * to figure out whether the disk device is actually online or not. 9970 */ 9971 if (lun != NULL) 9972 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9973 lun->be_lun->lun_type; 9974 else 9975 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9976 bdc_ptr->page_code = SVPD_BDC; 9977 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 9978 if (lun != NULL && 9979 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 9980 i = strtol(value, NULL, 0); 9981 else 9982 i = CTL_DEFAULT_ROTATION_RATE; 9983 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 9984 if (lun != NULL && 9985 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 9986 i = strtol(value, NULL, 0); 9987 else 9988 i = 0; 9989 bdc_ptr->wab_wac_ff = (i & 0x0f); 9990 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 9991 9992 ctl_set_success(ctsio); 9993 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9994 ctsio->be_move_done = ctl_config_move_done; 9995 ctl_datamove((union ctl_io *)ctsio); 9996 return (CTL_RETVAL_COMPLETE); 9997 } 9998 9999 static int 10000 ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10001 { 10002 struct ctl_lun *lun = CTL_LUN(ctsio); 10003 struct scsi_vpd_logical_block_prov *lbp_ptr; 10004 const char *value; 10005 10006 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10007 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10008 ctsio->kern_sg_entries = 0; 10009 10010 if (sizeof(*lbp_ptr) < alloc_len) { 10011 ctsio->residual = alloc_len - sizeof(*lbp_ptr); 10012 ctsio->kern_data_len = sizeof(*lbp_ptr); 10013 ctsio->kern_total_len = sizeof(*lbp_ptr); 10014 } else { 10015 ctsio->residual = 0; 10016 ctsio->kern_data_len = alloc_len; 10017 ctsio->kern_total_len = alloc_len; 10018 } 10019 ctsio->kern_data_resid = 0; 10020 ctsio->kern_rel_offset = 0; 10021 ctsio->kern_sg_entries = 0; 10022 10023 /* 10024 * The control device is always connected. The disk device, on the 10025 * other hand, may not be online all the time. Need to change this 10026 * to figure out whether the disk device is actually online or not. 10027 */ 10028 if (lun != NULL) 10029 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10030 lun->be_lun->lun_type; 10031 else 10032 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10033 10034 lbp_ptr->page_code = SVPD_LBP; 10035 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10036 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 10037 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10038 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10039 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10040 value = ctl_get_opt(&lun->be_lun->options, "provisioning_type"); 10041 if (value != NULL) { 10042 if (strcmp(value, "resource") == 0) 10043 lbp_ptr->prov_type = SVPD_LBP_RESOURCE; 10044 else if (strcmp(value, "thin") == 0) 10045 lbp_ptr->prov_type = SVPD_LBP_THIN; 10046 } else 10047 lbp_ptr->prov_type = SVPD_LBP_THIN; 10048 } 10049 10050 ctl_set_success(ctsio); 10051 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10052 ctsio->be_move_done = ctl_config_move_done; 10053 ctl_datamove((union ctl_io *)ctsio); 10054 return (CTL_RETVAL_COMPLETE); 10055 } 10056 10057 /* 10058 * INQUIRY with the EVPD bit set. 10059 */ 10060 static int 10061 ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10062 { 10063 struct ctl_lun *lun = CTL_LUN(ctsio); 10064 struct scsi_inquiry *cdb; 10065 int alloc_len, retval; 10066 10067 cdb = (struct scsi_inquiry *)ctsio->cdb; 10068 alloc_len = scsi_2btoul(cdb->length); 10069 10070 switch (cdb->page_code) { 10071 case SVPD_SUPPORTED_PAGES: 10072 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10073 break; 10074 case SVPD_UNIT_SERIAL_NUMBER: 10075 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10076 break; 10077 case SVPD_DEVICE_ID: 10078 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10079 break; 10080 case SVPD_EXTENDED_INQUIRY_DATA: 10081 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10082 break; 10083 case SVPD_MODE_PAGE_POLICY: 10084 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10085 break; 10086 case SVPD_SCSI_PORTS: 10087 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10088 break; 10089 case SVPD_SCSI_TPC: 10090 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10091 break; 10092 case SVPD_BLOCK_LIMITS: 10093 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10094 goto err; 10095 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10096 break; 10097 case SVPD_BDC: 10098 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10099 goto err; 10100 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10101 break; 10102 case SVPD_LBP: 10103 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10104 goto err; 10105 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10106 break; 10107 default: 10108 err: 10109 ctl_set_invalid_field(ctsio, 10110 /*sks_valid*/ 1, 10111 /*command*/ 1, 10112 /*field*/ 2, 10113 /*bit_valid*/ 0, 10114 /*bit*/ 0); 10115 ctl_done((union ctl_io *)ctsio); 10116 retval = CTL_RETVAL_COMPLETE; 10117 break; 10118 } 10119 10120 return (retval); 10121 } 10122 10123 /* 10124 * Standard INQUIRY data. 10125 */ 10126 static int 10127 ctl_inquiry_std(struct ctl_scsiio *ctsio) 10128 { 10129 struct ctl_softc *softc = CTL_SOFTC(ctsio); 10130 struct ctl_port *port = CTL_PORT(ctsio); 10131 struct ctl_lun *lun = CTL_LUN(ctsio); 10132 struct scsi_inquiry_data *inq_ptr; 10133 struct scsi_inquiry *cdb; 10134 char *val; 10135 uint32_t alloc_len, data_len; 10136 ctl_port_type port_type; 10137 10138 port_type = port->port_type; 10139 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10140 port_type = CTL_PORT_SCSI; 10141 10142 cdb = (struct scsi_inquiry *)ctsio->cdb; 10143 alloc_len = scsi_2btoul(cdb->length); 10144 10145 /* 10146 * We malloc the full inquiry data size here and fill it 10147 * in. If the user only asks for less, we'll give him 10148 * that much. 10149 */ 10150 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10151 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10152 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10153 ctsio->kern_sg_entries = 0; 10154 ctsio->kern_data_resid = 0; 10155 ctsio->kern_rel_offset = 0; 10156 10157 if (data_len < alloc_len) { 10158 ctsio->residual = alloc_len - data_len; 10159 ctsio->kern_data_len = data_len; 10160 ctsio->kern_total_len = data_len; 10161 } else { 10162 ctsio->residual = 0; 10163 ctsio->kern_data_len = alloc_len; 10164 ctsio->kern_total_len = alloc_len; 10165 } 10166 10167 if (lun != NULL) { 10168 if ((lun->flags & CTL_LUN_PRIMARY_SC) || 10169 softc->ha_link >= CTL_HA_LINK_UNKNOWN) { 10170 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10171 lun->be_lun->lun_type; 10172 } else { 10173 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | 10174 lun->be_lun->lun_type; 10175 } 10176 if (lun->flags & CTL_LUN_REMOVABLE) 10177 inq_ptr->dev_qual2 |= SID_RMB; 10178 } else 10179 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10180 10181 /* RMB in byte 2 is 0 */ 10182 inq_ptr->version = SCSI_REV_SPC5; 10183 10184 /* 10185 * According to SAM-3, even if a device only supports a single 10186 * level of LUN addressing, it should still set the HISUP bit: 10187 * 10188 * 4.9.1 Logical unit numbers overview 10189 * 10190 * All logical unit number formats described in this standard are 10191 * hierarchical in structure even when only a single level in that 10192 * hierarchy is used. The HISUP bit shall be set to one in the 10193 * standard INQUIRY data (see SPC-2) when any logical unit number 10194 * format described in this standard is used. Non-hierarchical 10195 * formats are outside the scope of this standard. 10196 * 10197 * Therefore we set the HiSup bit here. 10198 * 10199 * The response format is 2, per SPC-3. 10200 */ 10201 inq_ptr->response_format = SID_HiSup | 2; 10202 10203 inq_ptr->additional_length = data_len - 10204 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10205 CTL_DEBUG_PRINT(("additional_length = %d\n", 10206 inq_ptr->additional_length)); 10207 10208 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10209 if (port_type == CTL_PORT_SCSI) 10210 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10211 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10212 inq_ptr->flags = SID_CmdQue; 10213 if (port_type == CTL_PORT_SCSI) 10214 inq_ptr->flags |= SID_WBus16 | SID_Sync; 10215 10216 /* 10217 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10218 * We have 8 bytes for the vendor name, and 16 bytes for the device 10219 * name and 4 bytes for the revision. 10220 */ 10221 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10222 "vendor")) == NULL) { 10223 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10224 } else { 10225 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10226 strncpy(inq_ptr->vendor, val, 10227 min(sizeof(inq_ptr->vendor), strlen(val))); 10228 } 10229 if (lun == NULL) { 10230 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10231 sizeof(inq_ptr->product)); 10232 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10233 switch (lun->be_lun->lun_type) { 10234 case T_DIRECT: 10235 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10236 sizeof(inq_ptr->product)); 10237 break; 10238 case T_PROCESSOR: 10239 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10240 sizeof(inq_ptr->product)); 10241 break; 10242 case T_CDROM: 10243 strncpy(inq_ptr->product, CTL_CDROM_PRODUCT, 10244 sizeof(inq_ptr->product)); 10245 break; 10246 default: 10247 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10248 sizeof(inq_ptr->product)); 10249 break; 10250 } 10251 } else { 10252 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10253 strncpy(inq_ptr->product, val, 10254 min(sizeof(inq_ptr->product), strlen(val))); 10255 } 10256 10257 /* 10258 * XXX make this a macro somewhere so it automatically gets 10259 * incremented when we make changes. 10260 */ 10261 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10262 "revision")) == NULL) { 10263 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10264 } else { 10265 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10266 strncpy(inq_ptr->revision, val, 10267 min(sizeof(inq_ptr->revision), strlen(val))); 10268 } 10269 10270 /* 10271 * For parallel SCSI, we support double transition and single 10272 * transition clocking. We also support QAS (Quick Arbitration 10273 * and Selection) and Information Unit transfers on both the 10274 * control and array devices. 10275 */ 10276 if (port_type == CTL_PORT_SCSI) 10277 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10278 SID_SPI_IUS; 10279 10280 /* SAM-6 (no version claimed) */ 10281 scsi_ulto2b(0x00C0, inq_ptr->version1); 10282 /* SPC-5 (no version claimed) */ 10283 scsi_ulto2b(0x05C0, inq_ptr->version2); 10284 if (port_type == CTL_PORT_FC) { 10285 /* FCP-2 ANSI INCITS.350:2003 */ 10286 scsi_ulto2b(0x0917, inq_ptr->version3); 10287 } else if (port_type == CTL_PORT_SCSI) { 10288 /* SPI-4 ANSI INCITS.362:200x */ 10289 scsi_ulto2b(0x0B56, inq_ptr->version3); 10290 } else if (port_type == CTL_PORT_ISCSI) { 10291 /* iSCSI (no version claimed) */ 10292 scsi_ulto2b(0x0960, inq_ptr->version3); 10293 } else if (port_type == CTL_PORT_SAS) { 10294 /* SAS (no version claimed) */ 10295 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10296 } 10297 10298 if (lun == NULL) { 10299 /* SBC-4 (no version claimed) */ 10300 scsi_ulto2b(0x0600, inq_ptr->version4); 10301 } else { 10302 switch (lun->be_lun->lun_type) { 10303 case T_DIRECT: 10304 /* SBC-4 (no version claimed) */ 10305 scsi_ulto2b(0x0600, inq_ptr->version4); 10306 break; 10307 case T_PROCESSOR: 10308 break; 10309 case T_CDROM: 10310 /* MMC-6 (no version claimed) */ 10311 scsi_ulto2b(0x04E0, inq_ptr->version4); 10312 break; 10313 default: 10314 break; 10315 } 10316 } 10317 10318 ctl_set_success(ctsio); 10319 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10320 ctsio->be_move_done = ctl_config_move_done; 10321 ctl_datamove((union ctl_io *)ctsio); 10322 return (CTL_RETVAL_COMPLETE); 10323 } 10324 10325 int 10326 ctl_inquiry(struct ctl_scsiio *ctsio) 10327 { 10328 struct scsi_inquiry *cdb; 10329 int retval; 10330 10331 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10332 10333 cdb = (struct scsi_inquiry *)ctsio->cdb; 10334 if (cdb->byte2 & SI_EVPD) 10335 retval = ctl_inquiry_evpd(ctsio); 10336 else if (cdb->page_code == 0) 10337 retval = ctl_inquiry_std(ctsio); 10338 else { 10339 ctl_set_invalid_field(ctsio, 10340 /*sks_valid*/ 1, 10341 /*command*/ 1, 10342 /*field*/ 2, 10343 /*bit_valid*/ 0, 10344 /*bit*/ 0); 10345 ctl_done((union ctl_io *)ctsio); 10346 return (CTL_RETVAL_COMPLETE); 10347 } 10348 10349 return (retval); 10350 } 10351 10352 int 10353 ctl_get_config(struct ctl_scsiio *ctsio) 10354 { 10355 struct ctl_lun *lun = CTL_LUN(ctsio); 10356 struct scsi_get_config_header *hdr; 10357 struct scsi_get_config_feature *feature; 10358 struct scsi_get_config *cdb; 10359 uint32_t alloc_len, data_len; 10360 int rt, starting; 10361 10362 cdb = (struct scsi_get_config *)ctsio->cdb; 10363 rt = (cdb->rt & SGC_RT_MASK); 10364 starting = scsi_2btoul(cdb->starting_feature); 10365 alloc_len = scsi_2btoul(cdb->length); 10366 10367 data_len = sizeof(struct scsi_get_config_header) + 10368 sizeof(struct scsi_get_config_feature) + 8 + 10369 sizeof(struct scsi_get_config_feature) + 8 + 10370 sizeof(struct scsi_get_config_feature) + 4 + 10371 sizeof(struct scsi_get_config_feature) + 4 + 10372 sizeof(struct scsi_get_config_feature) + 8 + 10373 sizeof(struct scsi_get_config_feature) + 10374 sizeof(struct scsi_get_config_feature) + 4 + 10375 sizeof(struct scsi_get_config_feature) + 4 + 10376 sizeof(struct scsi_get_config_feature) + 4 + 10377 sizeof(struct scsi_get_config_feature) + 4 + 10378 sizeof(struct scsi_get_config_feature) + 4 + 10379 sizeof(struct scsi_get_config_feature) + 4; 10380 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10381 ctsio->kern_sg_entries = 0; 10382 ctsio->kern_data_resid = 0; 10383 ctsio->kern_rel_offset = 0; 10384 10385 hdr = (struct scsi_get_config_header *)ctsio->kern_data_ptr; 10386 if (lun->flags & CTL_LUN_NO_MEDIA) 10387 scsi_ulto2b(0x0000, hdr->current_profile); 10388 else 10389 scsi_ulto2b(0x0010, hdr->current_profile); 10390 feature = (struct scsi_get_config_feature *)(hdr + 1); 10391 10392 if (starting > 0x003b) 10393 goto done; 10394 if (starting > 0x003a) 10395 goto f3b; 10396 if (starting > 0x002b) 10397 goto f3a; 10398 if (starting > 0x002a) 10399 goto f2b; 10400 if (starting > 0x001f) 10401 goto f2a; 10402 if (starting > 0x001e) 10403 goto f1f; 10404 if (starting > 0x001d) 10405 goto f1e; 10406 if (starting > 0x0010) 10407 goto f1d; 10408 if (starting > 0x0003) 10409 goto f10; 10410 if (starting > 0x0002) 10411 goto f3; 10412 if (starting > 0x0001) 10413 goto f2; 10414 if (starting > 0x0000) 10415 goto f1; 10416 10417 /* Profile List */ 10418 scsi_ulto2b(0x0000, feature->feature_code); 10419 feature->flags = SGC_F_PERSISTENT | SGC_F_CURRENT; 10420 feature->add_length = 8; 10421 scsi_ulto2b(0x0008, &feature->feature_data[0]); /* CD-ROM */ 10422 feature->feature_data[2] = 0x00; 10423 scsi_ulto2b(0x0010, &feature->feature_data[4]); /* DVD-ROM */ 10424 feature->feature_data[6] = 0x01; 10425 feature = (struct scsi_get_config_feature *) 10426 &feature->feature_data[feature->add_length]; 10427 10428 f1: /* Core */ 10429 scsi_ulto2b(0x0001, feature->feature_code); 10430 feature->flags = 0x08 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10431 feature->add_length = 8; 10432 scsi_ulto4b(0x00000000, &feature->feature_data[0]); 10433 feature->feature_data[4] = 0x03; 10434 feature = (struct scsi_get_config_feature *) 10435 &feature->feature_data[feature->add_length]; 10436 10437 f2: /* Morphing */ 10438 scsi_ulto2b(0x0002, feature->feature_code); 10439 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10440 feature->add_length = 4; 10441 feature->feature_data[0] = 0x02; 10442 feature = (struct scsi_get_config_feature *) 10443 &feature->feature_data[feature->add_length]; 10444 10445 f3: /* Removable Medium */ 10446 scsi_ulto2b(0x0003, feature->feature_code); 10447 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10448 feature->add_length = 4; 10449 feature->feature_data[0] = 0x39; 10450 feature = (struct scsi_get_config_feature *) 10451 &feature->feature_data[feature->add_length]; 10452 10453 if (rt == SGC_RT_CURRENT && (lun->flags & CTL_LUN_NO_MEDIA)) 10454 goto done; 10455 10456 f10: /* Random Read */ 10457 scsi_ulto2b(0x0010, feature->feature_code); 10458 feature->flags = 0x00; 10459 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10460 feature->flags |= SGC_F_CURRENT; 10461 feature->add_length = 8; 10462 scsi_ulto4b(lun->be_lun->blocksize, &feature->feature_data[0]); 10463 scsi_ulto2b(1, &feature->feature_data[4]); 10464 feature->feature_data[6] = 0x00; 10465 feature = (struct scsi_get_config_feature *) 10466 &feature->feature_data[feature->add_length]; 10467 10468 f1d: /* Multi-Read */ 10469 scsi_ulto2b(0x001D, feature->feature_code); 10470 feature->flags = 0x00; 10471 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10472 feature->flags |= SGC_F_CURRENT; 10473 feature->add_length = 0; 10474 feature = (struct scsi_get_config_feature *) 10475 &feature->feature_data[feature->add_length]; 10476 10477 f1e: /* CD Read */ 10478 scsi_ulto2b(0x001E, feature->feature_code); 10479 feature->flags = 0x00; 10480 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10481 feature->flags |= SGC_F_CURRENT; 10482 feature->add_length = 4; 10483 feature->feature_data[0] = 0x00; 10484 feature = (struct scsi_get_config_feature *) 10485 &feature->feature_data[feature->add_length]; 10486 10487 f1f: /* DVD Read */ 10488 scsi_ulto2b(0x001F, feature->feature_code); 10489 feature->flags = 0x08; 10490 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10491 feature->flags |= SGC_F_CURRENT; 10492 feature->add_length = 4; 10493 feature->feature_data[0] = 0x01; 10494 feature->feature_data[2] = 0x03; 10495 feature = (struct scsi_get_config_feature *) 10496 &feature->feature_data[feature->add_length]; 10497 10498 f2a: /* DVD+RW */ 10499 scsi_ulto2b(0x002A, feature->feature_code); 10500 feature->flags = 0x04; 10501 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10502 feature->flags |= SGC_F_CURRENT; 10503 feature->add_length = 4; 10504 feature->feature_data[0] = 0x00; 10505 feature->feature_data[1] = 0x00; 10506 feature = (struct scsi_get_config_feature *) 10507 &feature->feature_data[feature->add_length]; 10508 10509 f2b: /* DVD+R */ 10510 scsi_ulto2b(0x002B, feature->feature_code); 10511 feature->flags = 0x00; 10512 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10513 feature->flags |= SGC_F_CURRENT; 10514 feature->add_length = 4; 10515 feature->feature_data[0] = 0x00; 10516 feature = (struct scsi_get_config_feature *) 10517 &feature->feature_data[feature->add_length]; 10518 10519 f3a: /* DVD+RW Dual Layer */ 10520 scsi_ulto2b(0x003A, feature->feature_code); 10521 feature->flags = 0x00; 10522 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10523 feature->flags |= SGC_F_CURRENT; 10524 feature->add_length = 4; 10525 feature->feature_data[0] = 0x00; 10526 feature->feature_data[1] = 0x00; 10527 feature = (struct scsi_get_config_feature *) 10528 &feature->feature_data[feature->add_length]; 10529 10530 f3b: /* DVD+R Dual Layer */ 10531 scsi_ulto2b(0x003B, feature->feature_code); 10532 feature->flags = 0x00; 10533 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10534 feature->flags |= SGC_F_CURRENT; 10535 feature->add_length = 4; 10536 feature->feature_data[0] = 0x00; 10537 feature = (struct scsi_get_config_feature *) 10538 &feature->feature_data[feature->add_length]; 10539 10540 done: 10541 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10542 if (rt == SGC_RT_SPECIFIC && data_len > 4) { 10543 feature = (struct scsi_get_config_feature *)(hdr + 1); 10544 if (scsi_2btoul(feature->feature_code) == starting) 10545 feature = (struct scsi_get_config_feature *) 10546 &feature->feature_data[feature->add_length]; 10547 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10548 } 10549 scsi_ulto4b(data_len - 4, hdr->data_length); 10550 if (data_len < alloc_len) { 10551 ctsio->residual = alloc_len - data_len; 10552 ctsio->kern_data_len = data_len; 10553 ctsio->kern_total_len = data_len; 10554 } else { 10555 ctsio->residual = 0; 10556 ctsio->kern_data_len = alloc_len; 10557 ctsio->kern_total_len = alloc_len; 10558 } 10559 10560 ctl_set_success(ctsio); 10561 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10562 ctsio->be_move_done = ctl_config_move_done; 10563 ctl_datamove((union ctl_io *)ctsio); 10564 return (CTL_RETVAL_COMPLETE); 10565 } 10566 10567 int 10568 ctl_get_event_status(struct ctl_scsiio *ctsio) 10569 { 10570 struct scsi_get_event_status_header *hdr; 10571 struct scsi_get_event_status *cdb; 10572 uint32_t alloc_len, data_len; 10573 int notif_class; 10574 10575 cdb = (struct scsi_get_event_status *)ctsio->cdb; 10576 if ((cdb->byte2 & SGESN_POLLED) == 0) { 10577 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1, 10578 /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 10579 ctl_done((union ctl_io *)ctsio); 10580 return (CTL_RETVAL_COMPLETE); 10581 } 10582 notif_class = cdb->notif_class; 10583 alloc_len = scsi_2btoul(cdb->length); 10584 10585 data_len = sizeof(struct scsi_get_event_status_header); 10586 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10587 ctsio->kern_sg_entries = 0; 10588 ctsio->kern_data_resid = 0; 10589 ctsio->kern_rel_offset = 0; 10590 10591 if (data_len < alloc_len) { 10592 ctsio->residual = alloc_len - data_len; 10593 ctsio->kern_data_len = data_len; 10594 ctsio->kern_total_len = data_len; 10595 } else { 10596 ctsio->residual = 0; 10597 ctsio->kern_data_len = alloc_len; 10598 ctsio->kern_total_len = alloc_len; 10599 } 10600 10601 hdr = (struct scsi_get_event_status_header *)ctsio->kern_data_ptr; 10602 scsi_ulto2b(0, hdr->descr_length); 10603 hdr->nea_class = SGESN_NEA; 10604 hdr->supported_class = 0; 10605 10606 ctl_set_success(ctsio); 10607 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10608 ctsio->be_move_done = ctl_config_move_done; 10609 ctl_datamove((union ctl_io *)ctsio); 10610 return (CTL_RETVAL_COMPLETE); 10611 } 10612 10613 int 10614 ctl_mechanism_status(struct ctl_scsiio *ctsio) 10615 { 10616 struct scsi_mechanism_status_header *hdr; 10617 struct scsi_mechanism_status *cdb; 10618 uint32_t alloc_len, data_len; 10619 10620 cdb = (struct scsi_mechanism_status *)ctsio->cdb; 10621 alloc_len = scsi_2btoul(cdb->length); 10622 10623 data_len = sizeof(struct scsi_mechanism_status_header); 10624 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10625 ctsio->kern_sg_entries = 0; 10626 ctsio->kern_data_resid = 0; 10627 ctsio->kern_rel_offset = 0; 10628 10629 if (data_len < alloc_len) { 10630 ctsio->residual = alloc_len - data_len; 10631 ctsio->kern_data_len = data_len; 10632 ctsio->kern_total_len = data_len; 10633 } else { 10634 ctsio->residual = 0; 10635 ctsio->kern_data_len = alloc_len; 10636 ctsio->kern_total_len = alloc_len; 10637 } 10638 10639 hdr = (struct scsi_mechanism_status_header *)ctsio->kern_data_ptr; 10640 hdr->state1 = 0x00; 10641 hdr->state2 = 0xe0; 10642 scsi_ulto3b(0, hdr->lba); 10643 hdr->slots_num = 0; 10644 scsi_ulto2b(0, hdr->slots_length); 10645 10646 ctl_set_success(ctsio); 10647 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10648 ctsio->be_move_done = ctl_config_move_done; 10649 ctl_datamove((union ctl_io *)ctsio); 10650 return (CTL_RETVAL_COMPLETE); 10651 } 10652 10653 static void 10654 ctl_ultomsf(uint32_t lba, uint8_t *buf) 10655 { 10656 10657 lba += 150; 10658 buf[0] = 0; 10659 buf[1] = bin2bcd((lba / 75) / 60); 10660 buf[2] = bin2bcd((lba / 75) % 60); 10661 buf[3] = bin2bcd(lba % 75); 10662 } 10663 10664 int 10665 ctl_read_toc(struct ctl_scsiio *ctsio) 10666 { 10667 struct ctl_lun *lun = CTL_LUN(ctsio); 10668 struct scsi_read_toc_hdr *hdr; 10669 struct scsi_read_toc_type01_descr *descr; 10670 struct scsi_read_toc *cdb; 10671 uint32_t alloc_len, data_len; 10672 int format, msf; 10673 10674 cdb = (struct scsi_read_toc *)ctsio->cdb; 10675 msf = (cdb->byte2 & CD_MSF) != 0; 10676 format = cdb->format; 10677 alloc_len = scsi_2btoul(cdb->data_len); 10678 10679 data_len = sizeof(struct scsi_read_toc_hdr); 10680 if (format == 0) 10681 data_len += 2 * sizeof(struct scsi_read_toc_type01_descr); 10682 else 10683 data_len += sizeof(struct scsi_read_toc_type01_descr); 10684 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10685 ctsio->kern_sg_entries = 0; 10686 ctsio->kern_data_resid = 0; 10687 ctsio->kern_rel_offset = 0; 10688 10689 if (data_len < alloc_len) { 10690 ctsio->residual = alloc_len - data_len; 10691 ctsio->kern_data_len = data_len; 10692 ctsio->kern_total_len = data_len; 10693 } else { 10694 ctsio->residual = 0; 10695 ctsio->kern_data_len = alloc_len; 10696 ctsio->kern_total_len = alloc_len; 10697 } 10698 10699 hdr = (struct scsi_read_toc_hdr *)ctsio->kern_data_ptr; 10700 if (format == 0) { 10701 scsi_ulto2b(0x12, hdr->data_length); 10702 hdr->first = 1; 10703 hdr->last = 1; 10704 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10705 descr->addr_ctl = 0x14; 10706 descr->track_number = 1; 10707 if (msf) 10708 ctl_ultomsf(0, descr->track_start); 10709 else 10710 scsi_ulto4b(0, descr->track_start); 10711 descr++; 10712 descr->addr_ctl = 0x14; 10713 descr->track_number = 0xaa; 10714 if (msf) 10715 ctl_ultomsf(lun->be_lun->maxlba+1, descr->track_start); 10716 else 10717 scsi_ulto4b(lun->be_lun->maxlba+1, descr->track_start); 10718 } else { 10719 scsi_ulto2b(0x0a, hdr->data_length); 10720 hdr->first = 1; 10721 hdr->last = 1; 10722 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10723 descr->addr_ctl = 0x14; 10724 descr->track_number = 1; 10725 if (msf) 10726 ctl_ultomsf(0, descr->track_start); 10727 else 10728 scsi_ulto4b(0, descr->track_start); 10729 } 10730 10731 ctl_set_success(ctsio); 10732 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10733 ctsio->be_move_done = ctl_config_move_done; 10734 ctl_datamove((union ctl_io *)ctsio); 10735 return (CTL_RETVAL_COMPLETE); 10736 } 10737 10738 /* 10739 * For known CDB types, parse the LBA and length. 10740 */ 10741 static int 10742 ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10743 { 10744 if (io->io_hdr.io_type != CTL_IO_SCSI) 10745 return (1); 10746 10747 switch (io->scsiio.cdb[0]) { 10748 case COMPARE_AND_WRITE: { 10749 struct scsi_compare_and_write *cdb; 10750 10751 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10752 10753 *lba = scsi_8btou64(cdb->addr); 10754 *len = cdb->length; 10755 break; 10756 } 10757 case READ_6: 10758 case WRITE_6: { 10759 struct scsi_rw_6 *cdb; 10760 10761 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10762 10763 *lba = scsi_3btoul(cdb->addr); 10764 /* only 5 bits are valid in the most significant address byte */ 10765 *lba &= 0x1fffff; 10766 *len = cdb->length; 10767 break; 10768 } 10769 case READ_10: 10770 case WRITE_10: { 10771 struct scsi_rw_10 *cdb; 10772 10773 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10774 10775 *lba = scsi_4btoul(cdb->addr); 10776 *len = scsi_2btoul(cdb->length); 10777 break; 10778 } 10779 case WRITE_VERIFY_10: { 10780 struct scsi_write_verify_10 *cdb; 10781 10782 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10783 10784 *lba = scsi_4btoul(cdb->addr); 10785 *len = scsi_2btoul(cdb->length); 10786 break; 10787 } 10788 case READ_12: 10789 case WRITE_12: { 10790 struct scsi_rw_12 *cdb; 10791 10792 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10793 10794 *lba = scsi_4btoul(cdb->addr); 10795 *len = scsi_4btoul(cdb->length); 10796 break; 10797 } 10798 case WRITE_VERIFY_12: { 10799 struct scsi_write_verify_12 *cdb; 10800 10801 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10802 10803 *lba = scsi_4btoul(cdb->addr); 10804 *len = scsi_4btoul(cdb->length); 10805 break; 10806 } 10807 case READ_16: 10808 case WRITE_16: { 10809 struct scsi_rw_16 *cdb; 10810 10811 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10812 10813 *lba = scsi_8btou64(cdb->addr); 10814 *len = scsi_4btoul(cdb->length); 10815 break; 10816 } 10817 case WRITE_ATOMIC_16: { 10818 struct scsi_write_atomic_16 *cdb; 10819 10820 cdb = (struct scsi_write_atomic_16 *)io->scsiio.cdb; 10821 10822 *lba = scsi_8btou64(cdb->addr); 10823 *len = scsi_2btoul(cdb->length); 10824 break; 10825 } 10826 case WRITE_VERIFY_16: { 10827 struct scsi_write_verify_16 *cdb; 10828 10829 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10830 10831 *lba = scsi_8btou64(cdb->addr); 10832 *len = scsi_4btoul(cdb->length); 10833 break; 10834 } 10835 case WRITE_SAME_10: { 10836 struct scsi_write_same_10 *cdb; 10837 10838 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10839 10840 *lba = scsi_4btoul(cdb->addr); 10841 *len = scsi_2btoul(cdb->length); 10842 break; 10843 } 10844 case WRITE_SAME_16: { 10845 struct scsi_write_same_16 *cdb; 10846 10847 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10848 10849 *lba = scsi_8btou64(cdb->addr); 10850 *len = scsi_4btoul(cdb->length); 10851 break; 10852 } 10853 case VERIFY_10: { 10854 struct scsi_verify_10 *cdb; 10855 10856 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10857 10858 *lba = scsi_4btoul(cdb->addr); 10859 *len = scsi_2btoul(cdb->length); 10860 break; 10861 } 10862 case VERIFY_12: { 10863 struct scsi_verify_12 *cdb; 10864 10865 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10866 10867 *lba = scsi_4btoul(cdb->addr); 10868 *len = scsi_4btoul(cdb->length); 10869 break; 10870 } 10871 case VERIFY_16: { 10872 struct scsi_verify_16 *cdb; 10873 10874 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10875 10876 *lba = scsi_8btou64(cdb->addr); 10877 *len = scsi_4btoul(cdb->length); 10878 break; 10879 } 10880 case UNMAP: { 10881 *lba = 0; 10882 *len = UINT64_MAX; 10883 break; 10884 } 10885 case SERVICE_ACTION_IN: { /* GET LBA STATUS */ 10886 struct scsi_get_lba_status *cdb; 10887 10888 cdb = (struct scsi_get_lba_status *)io->scsiio.cdb; 10889 *lba = scsi_8btou64(cdb->addr); 10890 *len = UINT32_MAX; 10891 break; 10892 } 10893 default: 10894 return (1); 10895 break; /* NOTREACHED */ 10896 } 10897 10898 return (0); 10899 } 10900 10901 static ctl_action 10902 ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2, 10903 bool seq) 10904 { 10905 uint64_t endlba1, endlba2; 10906 10907 endlba1 = lba1 + len1 - (seq ? 0 : 1); 10908 endlba2 = lba2 + len2 - 1; 10909 10910 if ((endlba1 < lba2) || (endlba2 < lba1)) 10911 return (CTL_ACTION_PASS); 10912 else 10913 return (CTL_ACTION_BLOCK); 10914 } 10915 10916 static int 10917 ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10918 { 10919 struct ctl_ptr_len_flags *ptrlen; 10920 struct scsi_unmap_desc *buf, *end, *range; 10921 uint64_t lba; 10922 uint32_t len; 10923 10924 /* If not UNMAP -- go other way. */ 10925 if (io->io_hdr.io_type != CTL_IO_SCSI || 10926 io->scsiio.cdb[0] != UNMAP) 10927 return (CTL_ACTION_ERROR); 10928 10929 /* If UNMAP without data -- block and wait for data. */ 10930 ptrlen = (struct ctl_ptr_len_flags *) 10931 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10932 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10933 ptrlen->ptr == NULL) 10934 return (CTL_ACTION_BLOCK); 10935 10936 /* UNMAP with data -- check for collision. */ 10937 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10938 end = buf + ptrlen->len / sizeof(*buf); 10939 for (range = buf; range < end; range++) { 10940 lba = scsi_8btou64(range->lba); 10941 len = scsi_4btoul(range->length); 10942 if ((lba < lba2 + len2) && (lba + len > lba2)) 10943 return (CTL_ACTION_BLOCK); 10944 } 10945 return (CTL_ACTION_PASS); 10946 } 10947 10948 static ctl_action 10949 ctl_extent_check(union ctl_io *io1, union ctl_io *io2, bool seq) 10950 { 10951 uint64_t lba1, lba2; 10952 uint64_t len1, len2; 10953 int retval; 10954 10955 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10956 return (CTL_ACTION_ERROR); 10957 10958 retval = ctl_extent_check_unmap(io1, lba2, len2); 10959 if (retval != CTL_ACTION_ERROR) 10960 return (retval); 10961 10962 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10963 return (CTL_ACTION_ERROR); 10964 10965 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10966 seq = FALSE; 10967 return (ctl_extent_check_lba(lba1, len1, lba2, len2, seq)); 10968 } 10969 10970 static ctl_action 10971 ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2) 10972 { 10973 uint64_t lba1, lba2; 10974 uint64_t len1, len2; 10975 10976 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10977 return (CTL_ACTION_PASS); 10978 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10979 return (CTL_ACTION_ERROR); 10980 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10981 return (CTL_ACTION_ERROR); 10982 10983 if (lba1 + len1 == lba2) 10984 return (CTL_ACTION_BLOCK); 10985 return (CTL_ACTION_PASS); 10986 } 10987 10988 static ctl_action 10989 ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10990 union ctl_io *ooa_io) 10991 { 10992 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10993 const ctl_serialize_action *serialize_row; 10994 10995 /* 10996 * The initiator attempted multiple untagged commands at the same 10997 * time. Can't do that. 10998 */ 10999 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11000 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11001 && ((pending_io->io_hdr.nexus.targ_port == 11002 ooa_io->io_hdr.nexus.targ_port) 11003 && (pending_io->io_hdr.nexus.initid == 11004 ooa_io->io_hdr.nexus.initid)) 11005 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 11006 CTL_FLAG_STATUS_SENT)) == 0)) 11007 return (CTL_ACTION_OVERLAP); 11008 11009 /* 11010 * The initiator attempted to send multiple tagged commands with 11011 * the same ID. (It's fine if different initiators have the same 11012 * tag ID.) 11013 * 11014 * Even if all of those conditions are true, we don't kill the I/O 11015 * if the command ahead of us has been aborted. We won't end up 11016 * sending it to the FETD, and it's perfectly legal to resend a 11017 * command with the same tag number as long as the previous 11018 * instance of this tag number has been aborted somehow. 11019 */ 11020 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11021 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11022 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 11023 && ((pending_io->io_hdr.nexus.targ_port == 11024 ooa_io->io_hdr.nexus.targ_port) 11025 && (pending_io->io_hdr.nexus.initid == 11026 ooa_io->io_hdr.nexus.initid)) 11027 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 11028 CTL_FLAG_STATUS_SENT)) == 0)) 11029 return (CTL_ACTION_OVERLAP_TAG); 11030 11031 /* 11032 * If we get a head of queue tag, SAM-3 says that we should 11033 * immediately execute it. 11034 * 11035 * What happens if this command would normally block for some other 11036 * reason? e.g. a request sense with a head of queue tag 11037 * immediately after a write. Normally that would block, but this 11038 * will result in its getting executed immediately... 11039 * 11040 * We currently return "pass" instead of "skip", so we'll end up 11041 * going through the rest of the queue to check for overlapped tags. 11042 * 11043 * XXX KDM check for other types of blockage first?? 11044 */ 11045 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11046 return (CTL_ACTION_PASS); 11047 11048 /* 11049 * Ordered tags have to block until all items ahead of them 11050 * have completed. If we get called with an ordered tag, we always 11051 * block, if something else is ahead of us in the queue. 11052 */ 11053 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 11054 return (CTL_ACTION_BLOCK); 11055 11056 /* 11057 * Simple tags get blocked until all head of queue and ordered tags 11058 * ahead of them have completed. I'm lumping untagged commands in 11059 * with simple tags here. XXX KDM is that the right thing to do? 11060 */ 11061 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11062 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 11063 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 11064 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 11065 return (CTL_ACTION_BLOCK); 11066 11067 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 11068 KASSERT(pending_entry->seridx < CTL_SERIDX_COUNT, 11069 ("%s: Invalid seridx %d for pending CDB %02x %02x @ %p", 11070 __func__, pending_entry->seridx, pending_io->scsiio.cdb[0], 11071 pending_io->scsiio.cdb[1], pending_io)); 11072 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 11073 if (ooa_entry->seridx == CTL_SERIDX_INVLD) 11074 return (CTL_ACTION_PASS); /* Unsupported command in OOA queue */ 11075 KASSERT(ooa_entry->seridx < CTL_SERIDX_COUNT, 11076 ("%s: Invalid seridx %d for ooa CDB %02x %02x @ %p", 11077 __func__, ooa_entry->seridx, ooa_io->scsiio.cdb[0], 11078 ooa_io->scsiio.cdb[1], ooa_io)); 11079 11080 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 11081 11082 switch (serialize_row[pending_entry->seridx]) { 11083 case CTL_SER_BLOCK: 11084 return (CTL_ACTION_BLOCK); 11085 case CTL_SER_EXTENT: 11086 return (ctl_extent_check(ooa_io, pending_io, 11087 (lun->be_lun && lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 11088 case CTL_SER_EXTENTOPT: 11089 if ((lun->MODE_CTRL.queue_flags & SCP_QUEUE_ALG_MASK) != 11090 SCP_QUEUE_ALG_UNRESTRICTED) 11091 return (ctl_extent_check(ooa_io, pending_io, 11092 (lun->be_lun && 11093 lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 11094 return (CTL_ACTION_PASS); 11095 case CTL_SER_EXTENTSEQ: 11096 if (lun->be_lun && lun->be_lun->serseq != CTL_LUN_SERSEQ_OFF) 11097 return (ctl_extent_check_seq(ooa_io, pending_io)); 11098 return (CTL_ACTION_PASS); 11099 case CTL_SER_PASS: 11100 return (CTL_ACTION_PASS); 11101 case CTL_SER_BLOCKOPT: 11102 if ((lun->MODE_CTRL.queue_flags & SCP_QUEUE_ALG_MASK) != 11103 SCP_QUEUE_ALG_UNRESTRICTED) 11104 return (CTL_ACTION_BLOCK); 11105 return (CTL_ACTION_PASS); 11106 case CTL_SER_SKIP: 11107 return (CTL_ACTION_SKIP); 11108 default: 11109 panic("%s: Invalid serialization value %d for %d => %d", 11110 __func__, serialize_row[pending_entry->seridx], 11111 pending_entry->seridx, ooa_entry->seridx); 11112 } 11113 11114 return (CTL_ACTION_ERROR); 11115 } 11116 11117 /* 11118 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 11119 * Assumptions: 11120 * - pending_io is generally either incoming, or on the blocked queue 11121 * - starting I/O is the I/O we want to start the check with. 11122 */ 11123 static ctl_action 11124 ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 11125 union ctl_io *starting_io) 11126 { 11127 union ctl_io *ooa_io; 11128 ctl_action action; 11129 11130 mtx_assert(&lun->lun_lock, MA_OWNED); 11131 11132 /* 11133 * Run back along the OOA queue, starting with the current 11134 * blocked I/O and going through every I/O before it on the 11135 * queue. If starting_io is NULL, we'll just end up returning 11136 * CTL_ACTION_PASS. 11137 */ 11138 for (ooa_io = starting_io; ooa_io != NULL; 11139 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 11140 ooa_links)){ 11141 11142 /* 11143 * This routine just checks to see whether 11144 * cur_blocked is blocked by ooa_io, which is ahead 11145 * of it in the queue. It doesn't queue/dequeue 11146 * cur_blocked. 11147 */ 11148 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 11149 switch (action) { 11150 case CTL_ACTION_BLOCK: 11151 case CTL_ACTION_OVERLAP: 11152 case CTL_ACTION_OVERLAP_TAG: 11153 case CTL_ACTION_SKIP: 11154 case CTL_ACTION_ERROR: 11155 return (action); 11156 break; /* NOTREACHED */ 11157 case CTL_ACTION_PASS: 11158 break; 11159 default: 11160 panic("%s: Invalid action %d\n", __func__, action); 11161 } 11162 } 11163 11164 return (CTL_ACTION_PASS); 11165 } 11166 11167 /* 11168 * Assumptions: 11169 * - An I/O has just completed, and has been removed from the per-LUN OOA 11170 * queue, so some items on the blocked queue may now be unblocked. 11171 */ 11172 static int 11173 ctl_check_blocked(struct ctl_lun *lun) 11174 { 11175 struct ctl_softc *softc = lun->ctl_softc; 11176 union ctl_io *cur_blocked, *next_blocked; 11177 11178 mtx_assert(&lun->lun_lock, MA_OWNED); 11179 11180 /* 11181 * Run forward from the head of the blocked queue, checking each 11182 * entry against the I/Os prior to it on the OOA queue to see if 11183 * there is still any blockage. 11184 * 11185 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11186 * with our removing a variable on it while it is traversing the 11187 * list. 11188 */ 11189 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11190 cur_blocked != NULL; cur_blocked = next_blocked) { 11191 union ctl_io *prev_ooa; 11192 ctl_action action; 11193 11194 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11195 blocked_links); 11196 11197 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11198 ctl_ooaq, ooa_links); 11199 11200 /* 11201 * If cur_blocked happens to be the first item in the OOA 11202 * queue now, prev_ooa will be NULL, and the action 11203 * returned will just be CTL_ACTION_PASS. 11204 */ 11205 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11206 11207 switch (action) { 11208 case CTL_ACTION_BLOCK: 11209 /* Nothing to do here, still blocked */ 11210 break; 11211 case CTL_ACTION_OVERLAP: 11212 case CTL_ACTION_OVERLAP_TAG: 11213 /* 11214 * This shouldn't happen! In theory we've already 11215 * checked this command for overlap... 11216 */ 11217 break; 11218 case CTL_ACTION_PASS: 11219 case CTL_ACTION_SKIP: { 11220 const struct ctl_cmd_entry *entry; 11221 11222 /* 11223 * The skip case shouldn't happen, this transaction 11224 * should have never made it onto the blocked queue. 11225 */ 11226 /* 11227 * This I/O is no longer blocked, we can remove it 11228 * from the blocked queue. Since this is a TAILQ 11229 * (doubly linked list), we can do O(1) removals 11230 * from any place on the list. 11231 */ 11232 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11233 blocked_links); 11234 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11235 11236 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 11237 (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)){ 11238 /* 11239 * Need to send IO back to original side to 11240 * run 11241 */ 11242 union ctl_ha_msg msg_info; 11243 11244 cur_blocked->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11245 msg_info.hdr.original_sc = 11246 cur_blocked->io_hdr.original_sc; 11247 msg_info.hdr.serializing_sc = cur_blocked; 11248 msg_info.hdr.msg_type = CTL_MSG_R2R; 11249 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11250 sizeof(msg_info.hdr), M_NOWAIT); 11251 break; 11252 } 11253 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11254 11255 /* 11256 * Check this I/O for LUN state changes that may 11257 * have happened while this command was blocked. 11258 * The LUN state may have been changed by a command 11259 * ahead of us in the queue, so we need to re-check 11260 * for any states that can be caused by SCSI 11261 * commands. 11262 */ 11263 if (ctl_scsiio_lun_check(lun, entry, 11264 &cur_blocked->scsiio) == 0) { 11265 cur_blocked->io_hdr.flags |= 11266 CTL_FLAG_IS_WAS_ON_RTR; 11267 ctl_enqueue_rtr(cur_blocked); 11268 } else 11269 ctl_done(cur_blocked); 11270 break; 11271 } 11272 default: 11273 /* 11274 * This probably shouldn't happen -- we shouldn't 11275 * get CTL_ACTION_ERROR, or anything else. 11276 */ 11277 break; 11278 } 11279 } 11280 11281 return (CTL_RETVAL_COMPLETE); 11282 } 11283 11284 /* 11285 * This routine (with one exception) checks LUN flags that can be set by 11286 * commands ahead of us in the OOA queue. These flags have to be checked 11287 * when a command initially comes in, and when we pull a command off the 11288 * blocked queue and are preparing to execute it. The reason we have to 11289 * check these flags for commands on the blocked queue is that the LUN 11290 * state may have been changed by a command ahead of us while we're on the 11291 * blocked queue. 11292 * 11293 * Ordering is somewhat important with these checks, so please pay 11294 * careful attention to the placement of any new checks. 11295 */ 11296 static int 11297 ctl_scsiio_lun_check(struct ctl_lun *lun, 11298 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11299 { 11300 struct ctl_softc *softc = lun->ctl_softc; 11301 int retval; 11302 uint32_t residx; 11303 11304 retval = 0; 11305 11306 mtx_assert(&lun->lun_lock, MA_OWNED); 11307 11308 /* 11309 * If this shelf is a secondary shelf controller, we may have to 11310 * reject some commands disallowed by HA mode and link state. 11311 */ 11312 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11313 if (softc->ha_link == CTL_HA_LINK_OFFLINE && 11314 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11315 ctl_set_lun_unavail(ctsio); 11316 retval = 1; 11317 goto bailout; 11318 } 11319 if ((lun->flags & CTL_LUN_PEER_SC_PRIMARY) == 0 && 11320 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11321 ctl_set_lun_transit(ctsio); 11322 retval = 1; 11323 goto bailout; 11324 } 11325 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY && 11326 (entry->flags & CTL_CMD_FLAG_OK_ON_STANDBY) == 0) { 11327 ctl_set_lun_standby(ctsio); 11328 retval = 1; 11329 goto bailout; 11330 } 11331 11332 /* The rest of checks are only done on executing side */ 11333 if (softc->ha_mode == CTL_HA_MODE_XFER) 11334 goto bailout; 11335 } 11336 11337 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11338 if (lun->be_lun && 11339 lun->be_lun->flags & CTL_LUN_FLAG_READONLY) { 11340 ctl_set_hw_write_protected(ctsio); 11341 retval = 1; 11342 goto bailout; 11343 } 11344 if ((lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) { 11345 ctl_set_sense(ctsio, /*current_error*/ 1, 11346 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11347 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11348 retval = 1; 11349 goto bailout; 11350 } 11351 } 11352 11353 /* 11354 * Check for a reservation conflict. If this command isn't allowed 11355 * even on reserved LUNs, and if this initiator isn't the one who 11356 * reserved us, reject the command with a reservation conflict. 11357 */ 11358 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11359 if ((lun->flags & CTL_LUN_RESERVED) 11360 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11361 if (lun->res_idx != residx) { 11362 ctl_set_reservation_conflict(ctsio); 11363 retval = 1; 11364 goto bailout; 11365 } 11366 } 11367 11368 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11369 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11370 /* No reservation or command is allowed. */; 11371 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11372 (lun->pr_res_type == SPR_TYPE_WR_EX || 11373 lun->pr_res_type == SPR_TYPE_WR_EX_RO || 11374 lun->pr_res_type == SPR_TYPE_WR_EX_AR)) { 11375 /* The command is allowed for Write Exclusive resv. */; 11376 } else { 11377 /* 11378 * if we aren't registered or it's a res holder type 11379 * reservation and this isn't the res holder then set a 11380 * conflict. 11381 */ 11382 if (ctl_get_prkey(lun, residx) == 0 || 11383 (residx != lun->pr_res_idx && lun->pr_res_type < 4)) { 11384 ctl_set_reservation_conflict(ctsio); 11385 retval = 1; 11386 goto bailout; 11387 } 11388 } 11389 11390 if ((entry->flags & CTL_CMD_FLAG_OK_ON_NO_MEDIA) == 0) { 11391 if (lun->flags & CTL_LUN_EJECTED) 11392 ctl_set_lun_ejected(ctsio); 11393 else if (lun->flags & CTL_LUN_NO_MEDIA) { 11394 if (lun->flags & CTL_LUN_REMOVABLE) 11395 ctl_set_lun_no_media(ctsio); 11396 else 11397 ctl_set_lun_int_reqd(ctsio); 11398 } else if (lun->flags & CTL_LUN_STOPPED) 11399 ctl_set_lun_stopped(ctsio); 11400 else 11401 goto bailout; 11402 retval = 1; 11403 goto bailout; 11404 } 11405 11406 bailout: 11407 return (retval); 11408 } 11409 11410 static void 11411 ctl_failover_io(union ctl_io *io, int have_lock) 11412 { 11413 ctl_set_busy(&io->scsiio); 11414 ctl_done(io); 11415 } 11416 11417 static void 11418 ctl_failover_lun(union ctl_io *rio) 11419 { 11420 struct ctl_softc *softc = CTL_SOFTC(rio); 11421 struct ctl_lun *lun; 11422 struct ctl_io_hdr *io, *next_io; 11423 uint32_t targ_lun; 11424 11425 targ_lun = rio->io_hdr.nexus.targ_mapped_lun; 11426 CTL_DEBUG_PRINT(("FAILOVER for lun %ju\n", targ_lun)); 11427 11428 /* Find and lock the LUN. */ 11429 mtx_lock(&softc->ctl_lock); 11430 if (targ_lun > CTL_MAX_LUNS || 11431 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11432 mtx_unlock(&softc->ctl_lock); 11433 return; 11434 } 11435 mtx_lock(&lun->lun_lock); 11436 mtx_unlock(&softc->ctl_lock); 11437 if (lun->flags & CTL_LUN_DISABLED) { 11438 mtx_unlock(&lun->lun_lock); 11439 return; 11440 } 11441 11442 if (softc->ha_mode == CTL_HA_MODE_XFER) { 11443 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11444 /* We are master */ 11445 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11446 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11447 io->flags |= CTL_FLAG_ABORT; 11448 io->flags |= CTL_FLAG_FAILOVER; 11449 } else { /* This can be only due to DATAMOVE */ 11450 io->msg_type = CTL_MSG_DATAMOVE_DONE; 11451 io->flags &= ~CTL_FLAG_DMA_INPROG; 11452 io->flags |= CTL_FLAG_IO_ACTIVE; 11453 io->port_status = 31340; 11454 ctl_enqueue_isc((union ctl_io *)io); 11455 } 11456 } 11457 /* We are slave */ 11458 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11459 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11460 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11461 io->flags |= CTL_FLAG_FAILOVER; 11462 } else { 11463 ctl_set_busy(&((union ctl_io *)io)-> 11464 scsiio); 11465 ctl_done((union ctl_io *)io); 11466 } 11467 } 11468 } 11469 } else { /* SERIALIZE modes */ 11470 TAILQ_FOREACH_SAFE(io, &lun->blocked_queue, blocked_links, 11471 next_io) { 11472 /* We are master */ 11473 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11474 TAILQ_REMOVE(&lun->blocked_queue, io, 11475 blocked_links); 11476 io->flags &= ~CTL_FLAG_BLOCKED; 11477 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11478 ctl_free_io((union ctl_io *)io); 11479 } 11480 } 11481 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11482 /* We are master */ 11483 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11484 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11485 ctl_free_io((union ctl_io *)io); 11486 } 11487 /* We are slave */ 11488 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11489 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11490 if (!(io->flags & CTL_FLAG_IO_ACTIVE)) { 11491 ctl_set_busy(&((union ctl_io *)io)-> 11492 scsiio); 11493 ctl_done((union ctl_io *)io); 11494 } 11495 } 11496 } 11497 ctl_check_blocked(lun); 11498 } 11499 mtx_unlock(&lun->lun_lock); 11500 } 11501 11502 static int 11503 ctl_scsiio_precheck(struct ctl_softc *softc, struct ctl_scsiio *ctsio) 11504 { 11505 struct ctl_lun *lun; 11506 const struct ctl_cmd_entry *entry; 11507 uint32_t initidx, targ_lun; 11508 int retval = 0; 11509 11510 lun = NULL; 11511 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11512 if (targ_lun < CTL_MAX_LUNS) 11513 lun = softc->ctl_luns[targ_lun]; 11514 if (lun) { 11515 /* 11516 * If the LUN is invalid, pretend that it doesn't exist. 11517 * It will go away as soon as all pending I/O has been 11518 * completed. 11519 */ 11520 mtx_lock(&lun->lun_lock); 11521 if (lun->flags & CTL_LUN_DISABLED) { 11522 mtx_unlock(&lun->lun_lock); 11523 lun = NULL; 11524 } 11525 } 11526 CTL_LUN(ctsio) = lun; 11527 if (lun) { 11528 CTL_BACKEND_LUN(ctsio) = lun->be_lun; 11529 11530 /* 11531 * Every I/O goes into the OOA queue for a particular LUN, 11532 * and stays there until completion. 11533 */ 11534 #ifdef CTL_TIME_IO 11535 if (TAILQ_EMPTY(&lun->ooa_queue)) 11536 lun->idle_time += getsbinuptime() - lun->last_busy; 11537 #endif 11538 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 11539 } 11540 11541 /* Get command entry and return error if it is unsuppotyed. */ 11542 entry = ctl_validate_command(ctsio); 11543 if (entry == NULL) { 11544 if (lun) 11545 mtx_unlock(&lun->lun_lock); 11546 return (retval); 11547 } 11548 11549 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11550 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11551 11552 /* 11553 * Check to see whether we can send this command to LUNs that don't 11554 * exist. This should pretty much only be the case for inquiry 11555 * and request sense. Further checks, below, really require having 11556 * a LUN, so we can't really check the command anymore. Just put 11557 * it on the rtr queue. 11558 */ 11559 if (lun == NULL) { 11560 if (entry->flags & CTL_CMD_FLAG_OK_ON_NO_LUN) { 11561 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11562 ctl_enqueue_rtr((union ctl_io *)ctsio); 11563 return (retval); 11564 } 11565 11566 ctl_set_unsupported_lun(ctsio); 11567 ctl_done((union ctl_io *)ctsio); 11568 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11569 return (retval); 11570 } else { 11571 /* 11572 * Make sure we support this particular command on this LUN. 11573 * e.g., we don't support writes to the control LUN. 11574 */ 11575 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11576 mtx_unlock(&lun->lun_lock); 11577 ctl_set_invalid_opcode(ctsio); 11578 ctl_done((union ctl_io *)ctsio); 11579 return (retval); 11580 } 11581 } 11582 11583 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11584 11585 #ifdef CTL_WITH_CA 11586 /* 11587 * If we've got a request sense, it'll clear the contingent 11588 * allegiance condition. Otherwise, if we have a CA condition for 11589 * this initiator, clear it, because it sent down a command other 11590 * than request sense. 11591 */ 11592 if ((ctsio->cdb[0] != REQUEST_SENSE) 11593 && (ctl_is_set(lun->have_ca, initidx))) 11594 ctl_clear_mask(lun->have_ca, initidx); 11595 #endif 11596 11597 /* 11598 * If the command has this flag set, it handles its own unit 11599 * attention reporting, we shouldn't do anything. Otherwise we 11600 * check for any pending unit attentions, and send them back to the 11601 * initiator. We only do this when a command initially comes in, 11602 * not when we pull it off the blocked queue. 11603 * 11604 * According to SAM-3, section 5.3.2, the order that things get 11605 * presented back to the host is basically unit attentions caused 11606 * by some sort of reset event, busy status, reservation conflicts 11607 * or task set full, and finally any other status. 11608 * 11609 * One issue here is that some of the unit attentions we report 11610 * don't fall into the "reset" category (e.g. "reported luns data 11611 * has changed"). So reporting it here, before the reservation 11612 * check, may be technically wrong. I guess the only thing to do 11613 * would be to check for and report the reset events here, and then 11614 * check for the other unit attention types after we check for a 11615 * reservation conflict. 11616 * 11617 * XXX KDM need to fix this 11618 */ 11619 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11620 ctl_ua_type ua_type; 11621 u_int sense_len = 0; 11622 11623 ua_type = ctl_build_ua(lun, initidx, &ctsio->sense_data, 11624 &sense_len, SSD_TYPE_NONE); 11625 if (ua_type != CTL_UA_NONE) { 11626 mtx_unlock(&lun->lun_lock); 11627 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11628 ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 11629 ctsio->sense_len = sense_len; 11630 ctl_done((union ctl_io *)ctsio); 11631 return (retval); 11632 } 11633 } 11634 11635 11636 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 11637 mtx_unlock(&lun->lun_lock); 11638 ctl_done((union ctl_io *)ctsio); 11639 return (retval); 11640 } 11641 11642 /* 11643 * XXX CHD this is where we want to send IO to other side if 11644 * this LUN is secondary on this SC. We will need to make a copy 11645 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11646 * the copy we send as FROM_OTHER. 11647 * We also need to stuff the address of the original IO so we can 11648 * find it easily. Something similar will need be done on the other 11649 * side so when we are done we can find the copy. 11650 */ 11651 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 11652 (lun->flags & CTL_LUN_PEER_SC_PRIMARY) != 0 && 11653 (entry->flags & CTL_CMD_FLAG_RUN_HERE) == 0) { 11654 union ctl_ha_msg msg_info; 11655 int isc_retval; 11656 11657 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11658 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11659 mtx_unlock(&lun->lun_lock); 11660 11661 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11662 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11663 msg_info.hdr.serializing_sc = NULL; 11664 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11665 msg_info.scsi.tag_num = ctsio->tag_num; 11666 msg_info.scsi.tag_type = ctsio->tag_type; 11667 msg_info.scsi.cdb_len = ctsio->cdb_len; 11668 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11669 11670 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11671 sizeof(msg_info.scsi) - sizeof(msg_info.scsi.sense_data), 11672 M_WAITOK)) > CTL_HA_STATUS_SUCCESS) { 11673 ctl_set_busy(ctsio); 11674 ctl_done((union ctl_io *)ctsio); 11675 return (retval); 11676 } 11677 return (retval); 11678 } 11679 11680 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11681 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11682 ctl_ooaq, ooa_links))) { 11683 case CTL_ACTION_BLOCK: 11684 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11685 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11686 blocked_links); 11687 mtx_unlock(&lun->lun_lock); 11688 return (retval); 11689 case CTL_ACTION_PASS: 11690 case CTL_ACTION_SKIP: 11691 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11692 mtx_unlock(&lun->lun_lock); 11693 ctl_enqueue_rtr((union ctl_io *)ctsio); 11694 break; 11695 case CTL_ACTION_OVERLAP: 11696 mtx_unlock(&lun->lun_lock); 11697 ctl_set_overlapped_cmd(ctsio); 11698 ctl_done((union ctl_io *)ctsio); 11699 break; 11700 case CTL_ACTION_OVERLAP_TAG: 11701 mtx_unlock(&lun->lun_lock); 11702 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11703 ctl_done((union ctl_io *)ctsio); 11704 break; 11705 case CTL_ACTION_ERROR: 11706 default: 11707 mtx_unlock(&lun->lun_lock); 11708 ctl_set_internal_failure(ctsio, 11709 /*sks_valid*/ 0, 11710 /*retry_count*/ 0); 11711 ctl_done((union ctl_io *)ctsio); 11712 break; 11713 } 11714 return (retval); 11715 } 11716 11717 const struct ctl_cmd_entry * 11718 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11719 { 11720 const struct ctl_cmd_entry *entry; 11721 int service_action; 11722 11723 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11724 if (sa) 11725 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11726 if (entry->flags & CTL_CMD_FLAG_SA5) { 11727 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11728 entry = &((const struct ctl_cmd_entry *) 11729 entry->execute)[service_action]; 11730 } 11731 return (entry); 11732 } 11733 11734 const struct ctl_cmd_entry * 11735 ctl_validate_command(struct ctl_scsiio *ctsio) 11736 { 11737 const struct ctl_cmd_entry *entry; 11738 int i, sa; 11739 uint8_t diff; 11740 11741 entry = ctl_get_cmd_entry(ctsio, &sa); 11742 if (entry->execute == NULL) { 11743 if (sa) 11744 ctl_set_invalid_field(ctsio, 11745 /*sks_valid*/ 1, 11746 /*command*/ 1, 11747 /*field*/ 1, 11748 /*bit_valid*/ 1, 11749 /*bit*/ 4); 11750 else 11751 ctl_set_invalid_opcode(ctsio); 11752 ctl_done((union ctl_io *)ctsio); 11753 return (NULL); 11754 } 11755 KASSERT(entry->length > 0, 11756 ("Not defined length for command 0x%02x/0x%02x", 11757 ctsio->cdb[0], ctsio->cdb[1])); 11758 for (i = 1; i < entry->length; i++) { 11759 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11760 if (diff == 0) 11761 continue; 11762 ctl_set_invalid_field(ctsio, 11763 /*sks_valid*/ 1, 11764 /*command*/ 1, 11765 /*field*/ i, 11766 /*bit_valid*/ 1, 11767 /*bit*/ fls(diff) - 1); 11768 ctl_done((union ctl_io *)ctsio); 11769 return (NULL); 11770 } 11771 return (entry); 11772 } 11773 11774 static int 11775 ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11776 { 11777 11778 switch (lun_type) { 11779 case T_DIRECT: 11780 if ((entry->flags & CTL_CMD_FLAG_OK_ON_DIRECT) == 0) 11781 return (0); 11782 break; 11783 case T_PROCESSOR: 11784 if ((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) 11785 return (0); 11786 break; 11787 case T_CDROM: 11788 if ((entry->flags & CTL_CMD_FLAG_OK_ON_CDROM) == 0) 11789 return (0); 11790 break; 11791 default: 11792 return (0); 11793 } 11794 return (1); 11795 } 11796 11797 static int 11798 ctl_scsiio(struct ctl_scsiio *ctsio) 11799 { 11800 int retval; 11801 const struct ctl_cmd_entry *entry; 11802 11803 retval = CTL_RETVAL_COMPLETE; 11804 11805 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11806 11807 entry = ctl_get_cmd_entry(ctsio, NULL); 11808 11809 /* 11810 * If this I/O has been aborted, just send it straight to 11811 * ctl_done() without executing it. 11812 */ 11813 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11814 ctl_done((union ctl_io *)ctsio); 11815 goto bailout; 11816 } 11817 11818 /* 11819 * All the checks should have been handled by ctl_scsiio_precheck(). 11820 * We should be clear now to just execute the I/O. 11821 */ 11822 retval = entry->execute(ctsio); 11823 11824 bailout: 11825 return (retval); 11826 } 11827 11828 /* 11829 * Since we only implement one target right now, a bus reset simply resets 11830 * our single target. 11831 */ 11832 static int 11833 ctl_bus_reset(struct ctl_softc *softc, union ctl_io *io) 11834 { 11835 return(ctl_target_reset(softc, io, CTL_UA_BUS_RESET)); 11836 } 11837 11838 static int 11839 ctl_target_reset(struct ctl_softc *softc, union ctl_io *io, 11840 ctl_ua_type ua_type) 11841 { 11842 struct ctl_port *port = CTL_PORT(io); 11843 struct ctl_lun *lun; 11844 int retval; 11845 11846 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11847 union ctl_ha_msg msg_info; 11848 11849 msg_info.hdr.nexus = io->io_hdr.nexus; 11850 if (ua_type==CTL_UA_TARG_RESET) 11851 msg_info.task.task_action = CTL_TASK_TARGET_RESET; 11852 else 11853 msg_info.task.task_action = CTL_TASK_BUS_RESET; 11854 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11855 msg_info.hdr.original_sc = NULL; 11856 msg_info.hdr.serializing_sc = NULL; 11857 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11858 sizeof(msg_info.task), M_WAITOK); 11859 } 11860 retval = 0; 11861 11862 mtx_lock(&softc->ctl_lock); 11863 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11864 if (port != NULL && 11865 ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 11866 continue; 11867 retval += ctl_do_lun_reset(lun, io, ua_type); 11868 } 11869 mtx_unlock(&softc->ctl_lock); 11870 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11871 return (retval); 11872 } 11873 11874 /* 11875 * The LUN should always be set. The I/O is optional, and is used to 11876 * distinguish between I/Os sent by this initiator, and by other 11877 * initiators. We set unit attention for initiators other than this one. 11878 * SAM-3 is vague on this point. It does say that a unit attention should 11879 * be established for other initiators when a LUN is reset (see section 11880 * 5.7.3), but it doesn't specifically say that the unit attention should 11881 * be established for this particular initiator when a LUN is reset. Here 11882 * is the relevant text, from SAM-3 rev 8: 11883 * 11884 * 5.7.2 When a SCSI initiator port aborts its own tasks 11885 * 11886 * When a SCSI initiator port causes its own task(s) to be aborted, no 11887 * notification that the task(s) have been aborted shall be returned to 11888 * the SCSI initiator port other than the completion response for the 11889 * command or task management function action that caused the task(s) to 11890 * be aborted and notification(s) associated with related effects of the 11891 * action (e.g., a reset unit attention condition). 11892 * 11893 * XXX KDM for now, we're setting unit attention for all initiators. 11894 */ 11895 static int 11896 ctl_do_lun_reset(struct ctl_lun *lun, union ctl_io *io, ctl_ua_type ua_type) 11897 { 11898 union ctl_io *xio; 11899 #if 0 11900 uint32_t initidx; 11901 #endif 11902 int i; 11903 11904 mtx_lock(&lun->lun_lock); 11905 /* 11906 * Run through the OOA queue and abort each I/O. 11907 */ 11908 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11909 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11910 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11911 } 11912 11913 /* 11914 * This version sets unit attention for every 11915 */ 11916 #if 0 11917 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11918 ctl_est_ua_all(lun, initidx, ua_type); 11919 #else 11920 ctl_est_ua_all(lun, -1, ua_type); 11921 #endif 11922 11923 /* 11924 * A reset (any kind, really) clears reservations established with 11925 * RESERVE/RELEASE. It does not clear reservations established 11926 * with PERSISTENT RESERVE OUT, but we don't support that at the 11927 * moment anyway. See SPC-2, section 5.6. SPC-3 doesn't address 11928 * reservations made with the RESERVE/RELEASE commands, because 11929 * those commands are obsolete in SPC-3. 11930 */ 11931 lun->flags &= ~CTL_LUN_RESERVED; 11932 11933 #ifdef CTL_WITH_CA 11934 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11935 ctl_clear_mask(lun->have_ca, i); 11936 #endif 11937 lun->prevent_count = 0; 11938 if (lun->prevent) { 11939 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11940 ctl_clear_mask(lun->prevent, i); 11941 } 11942 mtx_unlock(&lun->lun_lock); 11943 11944 return (0); 11945 } 11946 11947 static int 11948 ctl_lun_reset(struct ctl_softc *softc, union ctl_io *io) 11949 { 11950 struct ctl_lun *lun; 11951 uint32_t targ_lun; 11952 int retval; 11953 11954 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11955 mtx_lock(&softc->ctl_lock); 11956 if (targ_lun >= CTL_MAX_LUNS || 11957 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11958 mtx_unlock(&softc->ctl_lock); 11959 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11960 return (1); 11961 } 11962 retval = ctl_do_lun_reset(lun, io, CTL_UA_LUN_RESET); 11963 mtx_unlock(&softc->ctl_lock); 11964 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11965 11966 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0) { 11967 union ctl_ha_msg msg_info; 11968 11969 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11970 msg_info.hdr.nexus = io->io_hdr.nexus; 11971 msg_info.task.task_action = CTL_TASK_LUN_RESET; 11972 msg_info.hdr.original_sc = NULL; 11973 msg_info.hdr.serializing_sc = NULL; 11974 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11975 sizeof(msg_info.task), M_WAITOK); 11976 } 11977 return (retval); 11978 } 11979 11980 static void 11981 ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11982 int other_sc) 11983 { 11984 union ctl_io *xio; 11985 11986 mtx_assert(&lun->lun_lock, MA_OWNED); 11987 11988 /* 11989 * Run through the OOA queue and attempt to find the given I/O. 11990 * The target port, initiator ID, tag type and tag number have to 11991 * match the values that we got from the initiator. If we have an 11992 * untagged command to abort, simply abort the first untagged command 11993 * we come to. We only allow one untagged command at a time of course. 11994 */ 11995 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11996 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11997 11998 if ((targ_port == UINT32_MAX || 11999 targ_port == xio->io_hdr.nexus.targ_port) && 12000 (init_id == UINT32_MAX || 12001 init_id == xio->io_hdr.nexus.initid)) { 12002 if (targ_port != xio->io_hdr.nexus.targ_port || 12003 init_id != xio->io_hdr.nexus.initid) 12004 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 12005 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12006 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12007 union ctl_ha_msg msg_info; 12008 12009 msg_info.hdr.nexus = xio->io_hdr.nexus; 12010 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12011 msg_info.task.tag_num = xio->scsiio.tag_num; 12012 msg_info.task.tag_type = xio->scsiio.tag_type; 12013 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12014 msg_info.hdr.original_sc = NULL; 12015 msg_info.hdr.serializing_sc = NULL; 12016 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12017 sizeof(msg_info.task), M_NOWAIT); 12018 } 12019 } 12020 } 12021 } 12022 12023 static int 12024 ctl_abort_task_set(union ctl_io *io) 12025 { 12026 struct ctl_softc *softc = CTL_SOFTC(io); 12027 struct ctl_lun *lun; 12028 uint32_t targ_lun; 12029 12030 /* 12031 * Look up the LUN. 12032 */ 12033 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12034 mtx_lock(&softc->ctl_lock); 12035 if (targ_lun >= CTL_MAX_LUNS || 12036 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12037 mtx_unlock(&softc->ctl_lock); 12038 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12039 return (1); 12040 } 12041 12042 mtx_lock(&lun->lun_lock); 12043 mtx_unlock(&softc->ctl_lock); 12044 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 12045 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12046 io->io_hdr.nexus.initid, 12047 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12048 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12049 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12050 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12051 } 12052 mtx_unlock(&lun->lun_lock); 12053 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12054 return (0); 12055 } 12056 12057 static int 12058 ctl_i_t_nexus_reset(union ctl_io *io) 12059 { 12060 struct ctl_softc *softc = CTL_SOFTC(io); 12061 struct ctl_lun *lun; 12062 uint32_t initidx; 12063 12064 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12065 union ctl_ha_msg msg_info; 12066 12067 msg_info.hdr.nexus = io->io_hdr.nexus; 12068 msg_info.task.task_action = CTL_TASK_I_T_NEXUS_RESET; 12069 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12070 msg_info.hdr.original_sc = NULL; 12071 msg_info.hdr.serializing_sc = NULL; 12072 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12073 sizeof(msg_info.task), M_WAITOK); 12074 } 12075 12076 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12077 mtx_lock(&softc->ctl_lock); 12078 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12079 mtx_lock(&lun->lun_lock); 12080 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12081 io->io_hdr.nexus.initid, 1); 12082 #ifdef CTL_WITH_CA 12083 ctl_clear_mask(lun->have_ca, initidx); 12084 #endif 12085 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == initidx)) 12086 lun->flags &= ~CTL_LUN_RESERVED; 12087 if (lun->prevent && ctl_is_set(lun->prevent, initidx)) { 12088 ctl_clear_mask(lun->prevent, initidx); 12089 lun->prevent_count--; 12090 } 12091 ctl_est_ua(lun, initidx, CTL_UA_I_T_NEXUS_LOSS); 12092 mtx_unlock(&lun->lun_lock); 12093 } 12094 mtx_unlock(&softc->ctl_lock); 12095 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12096 return (0); 12097 } 12098 12099 static int 12100 ctl_abort_task(union ctl_io *io) 12101 { 12102 struct ctl_softc *softc = CTL_SOFTC(io); 12103 union ctl_io *xio; 12104 struct ctl_lun *lun; 12105 #if 0 12106 struct sbuf sb; 12107 char printbuf[128]; 12108 #endif 12109 int found; 12110 uint32_t targ_lun; 12111 12112 found = 0; 12113 12114 /* 12115 * Look up the LUN. 12116 */ 12117 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12118 mtx_lock(&softc->ctl_lock); 12119 if (targ_lun >= CTL_MAX_LUNS || 12120 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12121 mtx_unlock(&softc->ctl_lock); 12122 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12123 return (1); 12124 } 12125 12126 #if 0 12127 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 12128 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 12129 #endif 12130 12131 mtx_lock(&lun->lun_lock); 12132 mtx_unlock(&softc->ctl_lock); 12133 /* 12134 * Run through the OOA queue and attempt to find the given I/O. 12135 * The target port, initiator ID, tag type and tag number have to 12136 * match the values that we got from the initiator. If we have an 12137 * untagged command to abort, simply abort the first untagged command 12138 * we come to. We only allow one untagged command at a time of course. 12139 */ 12140 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12141 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12142 #if 0 12143 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 12144 12145 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 12146 lun->lun, xio->scsiio.tag_num, 12147 xio->scsiio.tag_type, 12148 (xio->io_hdr.blocked_links.tqe_prev 12149 == NULL) ? "" : " BLOCKED", 12150 (xio->io_hdr.flags & 12151 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 12152 (xio->io_hdr.flags & 12153 CTL_FLAG_ABORT) ? " ABORT" : "", 12154 (xio->io_hdr.flags & 12155 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 12156 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 12157 sbuf_finish(&sb); 12158 printf("%s\n", sbuf_data(&sb)); 12159 #endif 12160 12161 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12162 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12163 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12164 continue; 12165 12166 /* 12167 * If the abort says that the task is untagged, the 12168 * task in the queue must be untagged. Otherwise, 12169 * we just check to see whether the tag numbers 12170 * match. This is because the QLogic firmware 12171 * doesn't pass back the tag type in an abort 12172 * request. 12173 */ 12174 #if 0 12175 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12176 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12177 || (xio->scsiio.tag_num == io->taskio.tag_num)) 12178 #endif 12179 /* 12180 * XXX KDM we've got problems with FC, because it 12181 * doesn't send down a tag type with aborts. So we 12182 * can only really go by the tag number... 12183 * This may cause problems with parallel SCSI. 12184 * Need to figure that out!! 12185 */ 12186 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12187 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12188 found = 1; 12189 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0 && 12190 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12191 union ctl_ha_msg msg_info; 12192 12193 msg_info.hdr.nexus = io->io_hdr.nexus; 12194 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12195 msg_info.task.tag_num = io->taskio.tag_num; 12196 msg_info.task.tag_type = io->taskio.tag_type; 12197 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12198 msg_info.hdr.original_sc = NULL; 12199 msg_info.hdr.serializing_sc = NULL; 12200 #if 0 12201 printf("Sent Abort to other side\n"); 12202 #endif 12203 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12204 sizeof(msg_info.task), M_NOWAIT); 12205 } 12206 #if 0 12207 printf("ctl_abort_task: found I/O to abort\n"); 12208 #endif 12209 } 12210 } 12211 mtx_unlock(&lun->lun_lock); 12212 12213 if (found == 0) { 12214 /* 12215 * This isn't really an error. It's entirely possible for 12216 * the abort and command completion to cross on the wire. 12217 * This is more of an informative/diagnostic error. 12218 */ 12219 #if 0 12220 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12221 "%u:%u:%u tag %d type %d\n", 12222 io->io_hdr.nexus.initid, 12223 io->io_hdr.nexus.targ_port, 12224 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12225 io->taskio.tag_type); 12226 #endif 12227 } 12228 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12229 return (0); 12230 } 12231 12232 static int 12233 ctl_query_task(union ctl_io *io, int task_set) 12234 { 12235 struct ctl_softc *softc = CTL_SOFTC(io); 12236 union ctl_io *xio; 12237 struct ctl_lun *lun; 12238 int found = 0; 12239 uint32_t targ_lun; 12240 12241 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12242 mtx_lock(&softc->ctl_lock); 12243 if (targ_lun >= CTL_MAX_LUNS || 12244 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12245 mtx_unlock(&softc->ctl_lock); 12246 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12247 return (1); 12248 } 12249 mtx_lock(&lun->lun_lock); 12250 mtx_unlock(&softc->ctl_lock); 12251 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12252 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12253 12254 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12255 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12256 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12257 continue; 12258 12259 if (task_set || xio->scsiio.tag_num == io->taskio.tag_num) { 12260 found = 1; 12261 break; 12262 } 12263 } 12264 mtx_unlock(&lun->lun_lock); 12265 if (found) 12266 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12267 else 12268 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12269 return (0); 12270 } 12271 12272 static int 12273 ctl_query_async_event(union ctl_io *io) 12274 { 12275 struct ctl_softc *softc = CTL_SOFTC(io); 12276 struct ctl_lun *lun; 12277 ctl_ua_type ua; 12278 uint32_t targ_lun, initidx; 12279 12280 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12281 mtx_lock(&softc->ctl_lock); 12282 if (targ_lun >= CTL_MAX_LUNS || 12283 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12284 mtx_unlock(&softc->ctl_lock); 12285 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12286 return (1); 12287 } 12288 mtx_lock(&lun->lun_lock); 12289 mtx_unlock(&softc->ctl_lock); 12290 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12291 ua = ctl_build_qae(lun, initidx, io->taskio.task_resp); 12292 mtx_unlock(&lun->lun_lock); 12293 if (ua != CTL_UA_NONE) 12294 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12295 else 12296 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12297 return (0); 12298 } 12299 12300 static void 12301 ctl_run_task(union ctl_io *io) 12302 { 12303 struct ctl_softc *softc = CTL_SOFTC(io); 12304 int retval = 1; 12305 12306 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12307 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12308 ("ctl_run_task: Unextected io_type %d\n", io->io_hdr.io_type)); 12309 io->taskio.task_status = CTL_TASK_FUNCTION_NOT_SUPPORTED; 12310 bzero(io->taskio.task_resp, sizeof(io->taskio.task_resp)); 12311 switch (io->taskio.task_action) { 12312 case CTL_TASK_ABORT_TASK: 12313 retval = ctl_abort_task(io); 12314 break; 12315 case CTL_TASK_ABORT_TASK_SET: 12316 case CTL_TASK_CLEAR_TASK_SET: 12317 retval = ctl_abort_task_set(io); 12318 break; 12319 case CTL_TASK_CLEAR_ACA: 12320 break; 12321 case CTL_TASK_I_T_NEXUS_RESET: 12322 retval = ctl_i_t_nexus_reset(io); 12323 break; 12324 case CTL_TASK_LUN_RESET: 12325 retval = ctl_lun_reset(softc, io); 12326 break; 12327 case CTL_TASK_TARGET_RESET: 12328 retval = ctl_target_reset(softc, io, CTL_UA_TARG_RESET); 12329 break; 12330 case CTL_TASK_BUS_RESET: 12331 retval = ctl_bus_reset(softc, io); 12332 break; 12333 case CTL_TASK_PORT_LOGIN: 12334 break; 12335 case CTL_TASK_PORT_LOGOUT: 12336 break; 12337 case CTL_TASK_QUERY_TASK: 12338 retval = ctl_query_task(io, 0); 12339 break; 12340 case CTL_TASK_QUERY_TASK_SET: 12341 retval = ctl_query_task(io, 1); 12342 break; 12343 case CTL_TASK_QUERY_ASYNC_EVENT: 12344 retval = ctl_query_async_event(io); 12345 break; 12346 default: 12347 printf("%s: got unknown task management event %d\n", 12348 __func__, io->taskio.task_action); 12349 break; 12350 } 12351 if (retval == 0) 12352 io->io_hdr.status = CTL_SUCCESS; 12353 else 12354 io->io_hdr.status = CTL_ERROR; 12355 ctl_done(io); 12356 } 12357 12358 /* 12359 * For HA operation. Handle commands that come in from the other 12360 * controller. 12361 */ 12362 static void 12363 ctl_handle_isc(union ctl_io *io) 12364 { 12365 struct ctl_softc *softc = CTL_SOFTC(io); 12366 struct ctl_lun *lun; 12367 const struct ctl_cmd_entry *entry; 12368 uint32_t targ_lun; 12369 12370 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12371 switch (io->io_hdr.msg_type) { 12372 case CTL_MSG_SERIALIZE: 12373 ctl_serialize_other_sc_cmd(&io->scsiio); 12374 break; 12375 case CTL_MSG_R2R: /* Only used in SER_ONLY mode. */ 12376 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12377 if (targ_lun >= CTL_MAX_LUNS || 12378 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12379 ctl_done(io); 12380 break; 12381 } 12382 mtx_lock(&lun->lun_lock); 12383 if (ctl_scsiio_lun_check(lun, entry, &io->scsiio) != 0) { 12384 mtx_unlock(&lun->lun_lock); 12385 ctl_done(io); 12386 break; 12387 } 12388 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12389 mtx_unlock(&lun->lun_lock); 12390 ctl_enqueue_rtr(io); 12391 break; 12392 case CTL_MSG_FINISH_IO: 12393 if (softc->ha_mode == CTL_HA_MODE_XFER) { 12394 ctl_done(io); 12395 break; 12396 } 12397 if (targ_lun >= CTL_MAX_LUNS || 12398 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12399 ctl_free_io(io); 12400 break; 12401 } 12402 mtx_lock(&lun->lun_lock); 12403 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 12404 ctl_check_blocked(lun); 12405 mtx_unlock(&lun->lun_lock); 12406 ctl_free_io(io); 12407 break; 12408 case CTL_MSG_PERS_ACTION: 12409 ctl_hndl_per_res_out_on_other_sc(io); 12410 ctl_free_io(io); 12411 break; 12412 case CTL_MSG_BAD_JUJU: 12413 ctl_done(io); 12414 break; 12415 case CTL_MSG_DATAMOVE: /* Only used in XFER mode */ 12416 ctl_datamove_remote(io); 12417 break; 12418 case CTL_MSG_DATAMOVE_DONE: /* Only used in XFER mode */ 12419 io->scsiio.be_move_done(io); 12420 break; 12421 case CTL_MSG_FAILOVER: 12422 ctl_failover_lun(io); 12423 ctl_free_io(io); 12424 break; 12425 default: 12426 printf("%s: Invalid message type %d\n", 12427 __func__, io->io_hdr.msg_type); 12428 ctl_free_io(io); 12429 break; 12430 } 12431 12432 } 12433 12434 12435 /* 12436 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12437 * there is no match. 12438 */ 12439 static ctl_lun_error_pattern 12440 ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12441 { 12442 const struct ctl_cmd_entry *entry; 12443 ctl_lun_error_pattern filtered_pattern, pattern; 12444 12445 pattern = desc->error_pattern; 12446 12447 /* 12448 * XXX KDM we need more data passed into this function to match a 12449 * custom pattern, and we actually need to implement custom pattern 12450 * matching. 12451 */ 12452 if (pattern & CTL_LUN_PAT_CMD) 12453 return (CTL_LUN_PAT_CMD); 12454 12455 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12456 return (CTL_LUN_PAT_ANY); 12457 12458 entry = ctl_get_cmd_entry(ctsio, NULL); 12459 12460 filtered_pattern = entry->pattern & pattern; 12461 12462 /* 12463 * If the user requested specific flags in the pattern (e.g. 12464 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12465 * flags. 12466 * 12467 * If the user did not specify any flags, it doesn't matter whether 12468 * or not the command supports the flags. 12469 */ 12470 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12471 (pattern & ~CTL_LUN_PAT_MASK)) 12472 return (CTL_LUN_PAT_NONE); 12473 12474 /* 12475 * If the user asked for a range check, see if the requested LBA 12476 * range overlaps with this command's LBA range. 12477 */ 12478 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12479 uint64_t lba1; 12480 uint64_t len1; 12481 ctl_action action; 12482 int retval; 12483 12484 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12485 if (retval != 0) 12486 return (CTL_LUN_PAT_NONE); 12487 12488 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12489 desc->lba_range.len, FALSE); 12490 /* 12491 * A "pass" means that the LBA ranges don't overlap, so 12492 * this doesn't match the user's range criteria. 12493 */ 12494 if (action == CTL_ACTION_PASS) 12495 return (CTL_LUN_PAT_NONE); 12496 } 12497 12498 return (filtered_pattern); 12499 } 12500 12501 static void 12502 ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12503 { 12504 struct ctl_error_desc *desc, *desc2; 12505 12506 mtx_assert(&lun->lun_lock, MA_OWNED); 12507 12508 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12509 ctl_lun_error_pattern pattern; 12510 /* 12511 * Check to see whether this particular command matches 12512 * the pattern in the descriptor. 12513 */ 12514 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12515 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12516 continue; 12517 12518 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12519 case CTL_LUN_INJ_ABORTED: 12520 ctl_set_aborted(&io->scsiio); 12521 break; 12522 case CTL_LUN_INJ_MEDIUM_ERR: 12523 ctl_set_medium_error(&io->scsiio, 12524 (io->io_hdr.flags & CTL_FLAG_DATA_MASK) != 12525 CTL_FLAG_DATA_OUT); 12526 break; 12527 case CTL_LUN_INJ_UA: 12528 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12529 * OCCURRED */ 12530 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12531 break; 12532 case CTL_LUN_INJ_CUSTOM: 12533 /* 12534 * We're assuming the user knows what he is doing. 12535 * Just copy the sense information without doing 12536 * checks. 12537 */ 12538 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12539 MIN(sizeof(desc->custom_sense), 12540 sizeof(io->scsiio.sense_data))); 12541 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12542 io->scsiio.sense_len = SSD_FULL_SIZE; 12543 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12544 break; 12545 case CTL_LUN_INJ_NONE: 12546 default: 12547 /* 12548 * If this is an error injection type we don't know 12549 * about, clear the continuous flag (if it is set) 12550 * so it will get deleted below. 12551 */ 12552 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12553 break; 12554 } 12555 /* 12556 * By default, each error injection action is a one-shot 12557 */ 12558 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12559 continue; 12560 12561 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12562 12563 free(desc, M_CTL); 12564 } 12565 } 12566 12567 #ifdef CTL_IO_DELAY 12568 static void 12569 ctl_datamove_timer_wakeup(void *arg) 12570 { 12571 union ctl_io *io; 12572 12573 io = (union ctl_io *)arg; 12574 12575 ctl_datamove(io); 12576 } 12577 #endif /* CTL_IO_DELAY */ 12578 12579 void 12580 ctl_datamove(union ctl_io *io) 12581 { 12582 void (*fe_datamove)(union ctl_io *io); 12583 12584 mtx_assert(&((struct ctl_softc *)CTL_SOFTC(io))->ctl_lock, MA_NOTOWNED); 12585 12586 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12587 12588 #ifdef CTL_TIME_IO 12589 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12590 char str[256]; 12591 char path_str[64]; 12592 struct sbuf sb; 12593 12594 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12595 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12596 12597 sbuf_cat(&sb, path_str); 12598 switch (io->io_hdr.io_type) { 12599 case CTL_IO_SCSI: 12600 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12601 sbuf_printf(&sb, "\n"); 12602 sbuf_cat(&sb, path_str); 12603 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12604 io->scsiio.tag_num, io->scsiio.tag_type); 12605 break; 12606 case CTL_IO_TASK: 12607 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12608 "Tag Type: %d\n", io->taskio.task_action, 12609 io->taskio.tag_num, io->taskio.tag_type); 12610 break; 12611 default: 12612 panic("%s: Invalid CTL I/O type %d\n", 12613 __func__, io->io_hdr.io_type); 12614 } 12615 sbuf_cat(&sb, path_str); 12616 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12617 (intmax_t)time_uptime - io->io_hdr.start_time); 12618 sbuf_finish(&sb); 12619 printf("%s", sbuf_data(&sb)); 12620 } 12621 #endif /* CTL_TIME_IO */ 12622 12623 #ifdef CTL_IO_DELAY 12624 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12625 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12626 } else { 12627 if ((lun != NULL) 12628 && (lun->delay_info.datamove_delay > 0)) { 12629 12630 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 12631 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12632 callout_reset(&io->io_hdr.delay_callout, 12633 lun->delay_info.datamove_delay * hz, 12634 ctl_datamove_timer_wakeup, io); 12635 if (lun->delay_info.datamove_type == 12636 CTL_DELAY_TYPE_ONESHOT) 12637 lun->delay_info.datamove_delay = 0; 12638 return; 12639 } 12640 } 12641 #endif 12642 12643 /* 12644 * This command has been aborted. Set the port status, so we fail 12645 * the data move. 12646 */ 12647 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12648 printf("ctl_datamove: tag 0x%04x on (%u:%u:%u) aborted\n", 12649 io->scsiio.tag_num, io->io_hdr.nexus.initid, 12650 io->io_hdr.nexus.targ_port, 12651 io->io_hdr.nexus.targ_lun); 12652 io->io_hdr.port_status = 31337; 12653 /* 12654 * Note that the backend, in this case, will get the 12655 * callback in its context. In other cases it may get 12656 * called in the frontend's interrupt thread context. 12657 */ 12658 io->scsiio.be_move_done(io); 12659 return; 12660 } 12661 12662 /* Don't confuse frontend with zero length data move. */ 12663 if (io->scsiio.kern_data_len == 0) { 12664 io->scsiio.be_move_done(io); 12665 return; 12666 } 12667 12668 fe_datamove = CTL_PORT(io)->fe_datamove; 12669 fe_datamove(io); 12670 } 12671 12672 static void 12673 ctl_send_datamove_done(union ctl_io *io, int have_lock) 12674 { 12675 union ctl_ha_msg msg; 12676 #ifdef CTL_TIME_IO 12677 struct bintime cur_bt; 12678 #endif 12679 12680 memset(&msg, 0, sizeof(msg)); 12681 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12682 msg.hdr.original_sc = io; 12683 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 12684 msg.hdr.nexus = io->io_hdr.nexus; 12685 msg.hdr.status = io->io_hdr.status; 12686 msg.scsi.tag_num = io->scsiio.tag_num; 12687 msg.scsi.tag_type = io->scsiio.tag_type; 12688 msg.scsi.scsi_status = io->scsiio.scsi_status; 12689 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12690 io->scsiio.sense_len); 12691 msg.scsi.sense_len = io->scsiio.sense_len; 12692 msg.scsi.sense_residual = io->scsiio.sense_residual; 12693 msg.scsi.fetd_status = io->io_hdr.port_status; 12694 msg.scsi.residual = io->scsiio.residual; 12695 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12696 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12697 ctl_failover_io(io, /*have_lock*/ have_lock); 12698 return; 12699 } 12700 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12701 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 12702 msg.scsi.sense_len, M_WAITOK); 12703 12704 #ifdef CTL_TIME_IO 12705 getbinuptime(&cur_bt); 12706 bintime_sub(&cur_bt, &io->io_hdr.dma_start_bt); 12707 bintime_add(&io->io_hdr.dma_bt, &cur_bt); 12708 #endif 12709 io->io_hdr.num_dmas++; 12710 } 12711 12712 /* 12713 * The DMA to the remote side is done, now we need to tell the other side 12714 * we're done so it can continue with its data movement. 12715 */ 12716 static void 12717 ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12718 { 12719 union ctl_io *io; 12720 uint32_t i; 12721 12722 io = rq->context; 12723 12724 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12725 printf("%s: ISC DMA write failed with error %d", __func__, 12726 rq->ret); 12727 ctl_set_internal_failure(&io->scsiio, 12728 /*sks_valid*/ 1, 12729 /*retry_count*/ rq->ret); 12730 } 12731 12732 ctl_dt_req_free(rq); 12733 12734 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12735 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12736 free(io->io_hdr.remote_sglist, M_CTL); 12737 io->io_hdr.remote_sglist = NULL; 12738 io->io_hdr.local_sglist = NULL; 12739 12740 /* 12741 * The data is in local and remote memory, so now we need to send 12742 * status (good or back) back to the other side. 12743 */ 12744 ctl_send_datamove_done(io, /*have_lock*/ 0); 12745 } 12746 12747 /* 12748 * We've moved the data from the host/controller into local memory. Now we 12749 * need to push it over to the remote controller's memory. 12750 */ 12751 static int 12752 ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12753 { 12754 int retval; 12755 12756 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12757 ctl_datamove_remote_write_cb); 12758 return (retval); 12759 } 12760 12761 static void 12762 ctl_datamove_remote_write(union ctl_io *io) 12763 { 12764 int retval; 12765 void (*fe_datamove)(union ctl_io *io); 12766 12767 /* 12768 * - Get the data from the host/HBA into local memory. 12769 * - DMA memory from the local controller to the remote controller. 12770 * - Send status back to the remote controller. 12771 */ 12772 12773 retval = ctl_datamove_remote_sgl_setup(io); 12774 if (retval != 0) 12775 return; 12776 12777 /* Switch the pointer over so the FETD knows what to do */ 12778 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12779 12780 /* 12781 * Use a custom move done callback, since we need to send completion 12782 * back to the other controller, not to the backend on this side. 12783 */ 12784 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12785 12786 fe_datamove = CTL_PORT(io)->fe_datamove; 12787 fe_datamove(io); 12788 } 12789 12790 static int 12791 ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12792 { 12793 #if 0 12794 char str[256]; 12795 char path_str[64]; 12796 struct sbuf sb; 12797 #endif 12798 uint32_t i; 12799 12800 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12801 free(io->io_hdr.local_sglist[i].addr, M_CTL); 12802 free(io->io_hdr.remote_sglist, M_CTL); 12803 io->io_hdr.remote_sglist = NULL; 12804 io->io_hdr.local_sglist = NULL; 12805 12806 #if 0 12807 scsi_path_string(io, path_str, sizeof(path_str)); 12808 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12809 sbuf_cat(&sb, path_str); 12810 scsi_command_string(&io->scsiio, NULL, &sb); 12811 sbuf_printf(&sb, "\n"); 12812 sbuf_cat(&sb, path_str); 12813 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12814 io->scsiio.tag_num, io->scsiio.tag_type); 12815 sbuf_cat(&sb, path_str); 12816 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12817 io->io_hdr.flags, io->io_hdr.status); 12818 sbuf_finish(&sb); 12819 printk("%s", sbuf_data(&sb)); 12820 #endif 12821 12822 12823 /* 12824 * The read is done, now we need to send status (good or bad) back 12825 * to the other side. 12826 */ 12827 ctl_send_datamove_done(io, /*have_lock*/ 0); 12828 12829 return (0); 12830 } 12831 12832 static void 12833 ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12834 { 12835 union ctl_io *io; 12836 void (*fe_datamove)(union ctl_io *io); 12837 12838 io = rq->context; 12839 12840 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12841 printf("%s: ISC DMA read failed with error %d\n", __func__, 12842 rq->ret); 12843 ctl_set_internal_failure(&io->scsiio, 12844 /*sks_valid*/ 1, 12845 /*retry_count*/ rq->ret); 12846 } 12847 12848 ctl_dt_req_free(rq); 12849 12850 /* Switch the pointer over so the FETD knows what to do */ 12851 io->scsiio.kern_data_ptr = (uint8_t *)io->io_hdr.local_sglist; 12852 12853 /* 12854 * Use a custom move done callback, since we need to send completion 12855 * back to the other controller, not to the backend on this side. 12856 */ 12857 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12858 12859 /* XXX KDM add checks like the ones in ctl_datamove? */ 12860 12861 fe_datamove = CTL_PORT(io)->fe_datamove; 12862 fe_datamove(io); 12863 } 12864 12865 static int 12866 ctl_datamove_remote_sgl_setup(union ctl_io *io) 12867 { 12868 struct ctl_sg_entry *local_sglist; 12869 uint32_t len_to_go; 12870 int retval; 12871 int i; 12872 12873 retval = 0; 12874 local_sglist = io->io_hdr.local_sglist; 12875 len_to_go = io->scsiio.kern_data_len; 12876 12877 /* 12878 * The difficult thing here is that the size of the various 12879 * S/G segments may be different than the size from the 12880 * remote controller. That'll make it harder when DMAing 12881 * the data back to the other side. 12882 */ 12883 for (i = 0; len_to_go > 0; i++) { 12884 local_sglist[i].len = MIN(len_to_go, CTL_HA_DATAMOVE_SEGMENT); 12885 local_sglist[i].addr = 12886 malloc(local_sglist[i].len, M_CTL, M_WAITOK); 12887 12888 len_to_go -= local_sglist[i].len; 12889 } 12890 /* 12891 * Reset the number of S/G entries accordingly. The original 12892 * number of S/G entries is available in rem_sg_entries. 12893 */ 12894 io->scsiio.kern_sg_entries = i; 12895 12896 #if 0 12897 printf("%s: kern_sg_entries = %d\n", __func__, 12898 io->scsiio.kern_sg_entries); 12899 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12900 printf("%s: sg[%d] = %p, %lu\n", __func__, i, 12901 local_sglist[i].addr, local_sglist[i].len); 12902 #endif 12903 12904 return (retval); 12905 } 12906 12907 static int 12908 ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 12909 ctl_ha_dt_cb callback) 12910 { 12911 struct ctl_ha_dt_req *rq; 12912 struct ctl_sg_entry *remote_sglist, *local_sglist; 12913 uint32_t local_used, remote_used, total_used; 12914 int i, j, isc_ret; 12915 12916 rq = ctl_dt_req_alloc(); 12917 12918 /* 12919 * If we failed to allocate the request, and if the DMA didn't fail 12920 * anyway, set busy status. This is just a resource allocation 12921 * failure. 12922 */ 12923 if ((rq == NULL) 12924 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12925 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) 12926 ctl_set_busy(&io->scsiio); 12927 12928 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12929 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) { 12930 12931 if (rq != NULL) 12932 ctl_dt_req_free(rq); 12933 12934 /* 12935 * The data move failed. We need to return status back 12936 * to the other controller. No point in trying to DMA 12937 * data to the remote controller. 12938 */ 12939 12940 ctl_send_datamove_done(io, /*have_lock*/ 0); 12941 12942 return (1); 12943 } 12944 12945 local_sglist = io->io_hdr.local_sglist; 12946 remote_sglist = io->io_hdr.remote_sglist; 12947 local_used = 0; 12948 remote_used = 0; 12949 total_used = 0; 12950 12951 /* 12952 * Pull/push the data over the wire from/to the other controller. 12953 * This takes into account the possibility that the local and 12954 * remote sglists may not be identical in terms of the size of 12955 * the elements and the number of elements. 12956 * 12957 * One fundamental assumption here is that the length allocated for 12958 * both the local and remote sglists is identical. Otherwise, we've 12959 * essentially got a coding error of some sort. 12960 */ 12961 isc_ret = CTL_HA_STATUS_SUCCESS; 12962 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 12963 uint32_t cur_len; 12964 uint8_t *tmp_ptr; 12965 12966 rq->command = command; 12967 rq->context = io; 12968 12969 /* 12970 * Both pointers should be aligned. But it is possible 12971 * that the allocation length is not. They should both 12972 * also have enough slack left over at the end, though, 12973 * to round up to the next 8 byte boundary. 12974 */ 12975 cur_len = MIN(local_sglist[i].len - local_used, 12976 remote_sglist[j].len - remote_used); 12977 rq->size = cur_len; 12978 12979 tmp_ptr = (uint8_t *)local_sglist[i].addr; 12980 tmp_ptr += local_used; 12981 12982 #if 0 12983 /* Use physical addresses when talking to ISC hardware */ 12984 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 12985 /* XXX KDM use busdma */ 12986 rq->local = vtophys(tmp_ptr); 12987 } else 12988 rq->local = tmp_ptr; 12989 #else 12990 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 12991 ("HA does not support BUS_ADDR")); 12992 rq->local = tmp_ptr; 12993 #endif 12994 12995 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 12996 tmp_ptr += remote_used; 12997 rq->remote = tmp_ptr; 12998 12999 rq->callback = NULL; 13000 13001 local_used += cur_len; 13002 if (local_used >= local_sglist[i].len) { 13003 i++; 13004 local_used = 0; 13005 } 13006 13007 remote_used += cur_len; 13008 if (remote_used >= remote_sglist[j].len) { 13009 j++; 13010 remote_used = 0; 13011 } 13012 total_used += cur_len; 13013 13014 if (total_used >= io->scsiio.kern_data_len) 13015 rq->callback = callback; 13016 13017 #if 0 13018 printf("%s: %s: local %p remote %p size %d\n", __func__, 13019 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 13020 rq->local, rq->remote, rq->size); 13021 #endif 13022 13023 isc_ret = ctl_dt_single(rq); 13024 if (isc_ret > CTL_HA_STATUS_SUCCESS) 13025 break; 13026 } 13027 if (isc_ret != CTL_HA_STATUS_WAIT) { 13028 rq->ret = isc_ret; 13029 callback(rq); 13030 } 13031 13032 return (0); 13033 } 13034 13035 static void 13036 ctl_datamove_remote_read(union ctl_io *io) 13037 { 13038 int retval; 13039 uint32_t i; 13040 13041 /* 13042 * This will send an error to the other controller in the case of a 13043 * failure. 13044 */ 13045 retval = ctl_datamove_remote_sgl_setup(io); 13046 if (retval != 0) 13047 return; 13048 13049 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 13050 ctl_datamove_remote_read_cb); 13051 if (retval != 0) { 13052 /* 13053 * Make sure we free memory if there was an error.. The 13054 * ctl_datamove_remote_xfer() function will send the 13055 * datamove done message, or call the callback with an 13056 * error if there is a problem. 13057 */ 13058 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 13059 free(io->io_hdr.local_sglist[i].addr, M_CTL); 13060 free(io->io_hdr.remote_sglist, M_CTL); 13061 io->io_hdr.remote_sglist = NULL; 13062 io->io_hdr.local_sglist = NULL; 13063 } 13064 } 13065 13066 /* 13067 * Process a datamove request from the other controller. This is used for 13068 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 13069 * first. Once that is complete, the data gets DMAed into the remote 13070 * controller's memory. For reads, we DMA from the remote controller's 13071 * memory into our memory first, and then move it out to the FETD. 13072 */ 13073 static void 13074 ctl_datamove_remote(union ctl_io *io) 13075 { 13076 13077 mtx_assert(&((struct ctl_softc *)CTL_SOFTC(io))->ctl_lock, MA_NOTOWNED); 13078 13079 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 13080 ctl_failover_io(io, /*have_lock*/ 0); 13081 return; 13082 } 13083 13084 /* 13085 * Note that we look for an aborted I/O here, but don't do some of 13086 * the other checks that ctl_datamove() normally does. 13087 * We don't need to run the datamove delay code, since that should 13088 * have been done if need be on the other controller. 13089 */ 13090 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 13091 printf("%s: tag 0x%04x on (%u:%u:%u) aborted\n", __func__, 13092 io->scsiio.tag_num, io->io_hdr.nexus.initid, 13093 io->io_hdr.nexus.targ_port, 13094 io->io_hdr.nexus.targ_lun); 13095 io->io_hdr.port_status = 31338; 13096 ctl_send_datamove_done(io, /*have_lock*/ 0); 13097 return; 13098 } 13099 13100 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 13101 ctl_datamove_remote_write(io); 13102 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 13103 ctl_datamove_remote_read(io); 13104 else { 13105 io->io_hdr.port_status = 31339; 13106 ctl_send_datamove_done(io, /*have_lock*/ 0); 13107 } 13108 } 13109 13110 static void 13111 ctl_process_done(union ctl_io *io) 13112 { 13113 struct ctl_softc *softc = CTL_SOFTC(io); 13114 struct ctl_port *port = CTL_PORT(io); 13115 struct ctl_lun *lun = CTL_LUN(io); 13116 void (*fe_done)(union ctl_io *io); 13117 union ctl_ha_msg msg; 13118 13119 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13120 fe_done = port->fe_done; 13121 13122 #ifdef CTL_TIME_IO 13123 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13124 char str[256]; 13125 char path_str[64]; 13126 struct sbuf sb; 13127 13128 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13129 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13130 13131 sbuf_cat(&sb, path_str); 13132 switch (io->io_hdr.io_type) { 13133 case CTL_IO_SCSI: 13134 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13135 sbuf_printf(&sb, "\n"); 13136 sbuf_cat(&sb, path_str); 13137 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 13138 io->scsiio.tag_num, io->scsiio.tag_type); 13139 break; 13140 case CTL_IO_TASK: 13141 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 13142 "Tag Type: %d\n", io->taskio.task_action, 13143 io->taskio.tag_num, io->taskio.tag_type); 13144 break; 13145 default: 13146 panic("%s: Invalid CTL I/O type %d\n", 13147 __func__, io->io_hdr.io_type); 13148 } 13149 sbuf_cat(&sb, path_str); 13150 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13151 (intmax_t)time_uptime - io->io_hdr.start_time); 13152 sbuf_finish(&sb); 13153 printf("%s", sbuf_data(&sb)); 13154 } 13155 #endif /* CTL_TIME_IO */ 13156 13157 switch (io->io_hdr.io_type) { 13158 case CTL_IO_SCSI: 13159 break; 13160 case CTL_IO_TASK: 13161 if (ctl_debug & CTL_DEBUG_INFO) 13162 ctl_io_error_print(io, NULL); 13163 fe_done(io); 13164 return; 13165 default: 13166 panic("%s: Invalid CTL I/O type %d\n", 13167 __func__, io->io_hdr.io_type); 13168 } 13169 13170 if (lun == NULL) { 13171 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13172 io->io_hdr.nexus.targ_mapped_lun)); 13173 goto bailout; 13174 } 13175 13176 mtx_lock(&lun->lun_lock); 13177 13178 /* 13179 * Check to see if we have any informational exception and status 13180 * of this command can be modified to report it in form of either 13181 * RECOVERED ERROR or NO SENSE, depending on MRIE mode page field. 13182 */ 13183 if (lun->ie_reported == 0 && lun->ie_asc != 0 && 13184 io->io_hdr.status == CTL_SUCCESS && 13185 (io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0) { 13186 uint8_t mrie = lun->MODE_IE.mrie; 13187 uint8_t per = ((lun->MODE_RWER.byte3 & SMS_RWER_PER) || 13188 (lun->MODE_VER.byte3 & SMS_VER_PER)); 13189 if (((mrie == SIEP_MRIE_REC_COND && per) || 13190 mrie == SIEP_MRIE_REC_UNCOND || 13191 mrie == SIEP_MRIE_NO_SENSE) && 13192 (ctl_get_cmd_entry(&io->scsiio, NULL)->flags & 13193 CTL_CMD_FLAG_NO_SENSE) == 0) { 13194 ctl_set_sense(&io->scsiio, 13195 /*current_error*/ 1, 13196 /*sense_key*/ (mrie == SIEP_MRIE_NO_SENSE) ? 13197 SSD_KEY_NO_SENSE : SSD_KEY_RECOVERED_ERROR, 13198 /*asc*/ lun->ie_asc, 13199 /*ascq*/ lun->ie_ascq, 13200 SSD_ELEM_NONE); 13201 lun->ie_reported = 1; 13202 } 13203 } else if (lun->ie_reported < 0) 13204 lun->ie_reported = 0; 13205 13206 /* 13207 * Check to see if we have any errors to inject here. We only 13208 * inject errors for commands that don't already have errors set. 13209 */ 13210 if (!STAILQ_EMPTY(&lun->error_list) && 13211 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 13212 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 13213 ctl_inject_error(lun, io); 13214 13215 /* 13216 * XXX KDM how do we treat commands that aren't completed 13217 * successfully? 13218 * 13219 * XXX KDM should we also track I/O latency? 13220 */ 13221 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13222 io->io_hdr.io_type == CTL_IO_SCSI) { 13223 int type; 13224 #ifdef CTL_TIME_IO 13225 struct bintime bt; 13226 13227 getbinuptime(&bt); 13228 bintime_sub(&bt, &io->io_hdr.start_bt); 13229 #endif 13230 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13231 CTL_FLAG_DATA_IN) 13232 type = CTL_STATS_READ; 13233 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13234 CTL_FLAG_DATA_OUT) 13235 type = CTL_STATS_WRITE; 13236 else 13237 type = CTL_STATS_NO_IO; 13238 13239 #ifdef CTL_LEGACY_STATS 13240 uint32_t targ_port = port->targ_port; 13241 lun->legacy_stats.ports[targ_port].bytes[type] += 13242 io->scsiio.kern_total_len; 13243 lun->legacy_stats.ports[targ_port].operations[type] ++; 13244 lun->legacy_stats.ports[targ_port].num_dmas[type] += 13245 io->io_hdr.num_dmas; 13246 #ifdef CTL_TIME_IO 13247 bintime_add(&lun->legacy_stats.ports[targ_port].dma_time[type], 13248 &io->io_hdr.dma_bt); 13249 bintime_add(&lun->legacy_stats.ports[targ_port].time[type], 13250 &bt); 13251 #endif 13252 #endif /* CTL_LEGACY_STATS */ 13253 13254 lun->stats.bytes[type] += io->scsiio.kern_total_len; 13255 lun->stats.operations[type] ++; 13256 lun->stats.dmas[type] += io->io_hdr.num_dmas; 13257 #ifdef CTL_TIME_IO 13258 bintime_add(&lun->stats.dma_time[type], &io->io_hdr.dma_bt); 13259 bintime_add(&lun->stats.time[type], &bt); 13260 #endif 13261 13262 mtx_lock(&port->port_lock); 13263 port->stats.bytes[type] += io->scsiio.kern_total_len; 13264 port->stats.operations[type] ++; 13265 port->stats.dmas[type] += io->io_hdr.num_dmas; 13266 #ifdef CTL_TIME_IO 13267 bintime_add(&port->stats.dma_time[type], &io->io_hdr.dma_bt); 13268 bintime_add(&port->stats.time[type], &bt); 13269 #endif 13270 mtx_unlock(&port->port_lock); 13271 } 13272 13273 /* 13274 * Remove this from the OOA queue. 13275 */ 13276 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13277 #ifdef CTL_TIME_IO 13278 if (TAILQ_EMPTY(&lun->ooa_queue)) 13279 lun->last_busy = getsbinuptime(); 13280 #endif 13281 13282 /* 13283 * Run through the blocked queue on this LUN and see if anything 13284 * has become unblocked, now that this transaction is done. 13285 */ 13286 ctl_check_blocked(lun); 13287 13288 /* 13289 * If the LUN has been invalidated, free it if there is nothing 13290 * left on its OOA queue. 13291 */ 13292 if ((lun->flags & CTL_LUN_INVALID) 13293 && TAILQ_EMPTY(&lun->ooa_queue)) { 13294 mtx_unlock(&lun->lun_lock); 13295 mtx_lock(&softc->ctl_lock); 13296 ctl_free_lun(lun); 13297 mtx_unlock(&softc->ctl_lock); 13298 } else 13299 mtx_unlock(&lun->lun_lock); 13300 13301 bailout: 13302 13303 /* 13304 * If this command has been aborted, make sure we set the status 13305 * properly. The FETD is responsible for freeing the I/O and doing 13306 * whatever it needs to do to clean up its state. 13307 */ 13308 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13309 ctl_set_task_aborted(&io->scsiio); 13310 13311 /* 13312 * If enabled, print command error status. 13313 */ 13314 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS && 13315 (ctl_debug & CTL_DEBUG_INFO) != 0) 13316 ctl_io_error_print(io, NULL); 13317 13318 /* 13319 * Tell the FETD or the other shelf controller we're done with this 13320 * command. Note that only SCSI commands get to this point. Task 13321 * management commands are completed above. 13322 */ 13323 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 13324 (io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC)) { 13325 memset(&msg, 0, sizeof(msg)); 13326 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13327 msg.hdr.serializing_sc = io->io_hdr.serializing_sc; 13328 msg.hdr.nexus = io->io_hdr.nexus; 13329 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13330 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data), 13331 M_WAITOK); 13332 } 13333 13334 fe_done(io); 13335 } 13336 13337 #ifdef CTL_WITH_CA 13338 /* 13339 * Front end should call this if it doesn't do autosense. When the request 13340 * sense comes back in from the initiator, we'll dequeue this and send it. 13341 */ 13342 int 13343 ctl_queue_sense(union ctl_io *io) 13344 { 13345 struct ctl_softc *softc = CTL_SOFTC(io); 13346 struct ctl_port *port = CTL_PORT(io); 13347 struct ctl_lun *lun; 13348 uint32_t initidx, targ_lun; 13349 13350 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13351 13352 targ_lun = ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13353 13354 /* 13355 * LUN lookup will likely move to the ctl_work_thread() once we 13356 * have our new queueing infrastructure (that doesn't put things on 13357 * a per-LUN queue initially). That is so that we can handle 13358 * things like an INQUIRY to a LUN that we don't have enabled. We 13359 * can't deal with that right now. 13360 * If we don't have a LUN for this, just toss the sense information. 13361 */ 13362 mtx_lock(&softc->ctl_lock); 13363 if (targ_lun >= CTL_MAX_LUNS || 13364 (lun = softc->ctl_luns[targ_lun]) == NULL) { 13365 mtx_unlock(&softc->ctl_lock); 13366 goto bailout; 13367 } 13368 mtx_lock(&lun->lun_lock); 13369 mtx_unlock(&softc->ctl_lock); 13370 13371 /* 13372 * Already have CA set for this LUN...toss the sense information. 13373 */ 13374 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13375 if (ctl_is_set(lun->have_ca, initidx)) { 13376 mtx_unlock(&lun->lun_lock); 13377 goto bailout; 13378 } 13379 13380 memcpy(&lun->pending_sense[initidx], &io->scsiio.sense_data, 13381 MIN(sizeof(lun->pending_sense[initidx]), 13382 sizeof(io->scsiio.sense_data))); 13383 ctl_set_mask(lun->have_ca, initidx); 13384 mtx_unlock(&lun->lun_lock); 13385 13386 bailout: 13387 ctl_free_io(io); 13388 return (CTL_RETVAL_COMPLETE); 13389 } 13390 #endif 13391 13392 /* 13393 * Primary command inlet from frontend ports. All SCSI and task I/O 13394 * requests must go through this function. 13395 */ 13396 int 13397 ctl_queue(union ctl_io *io) 13398 { 13399 struct ctl_port *port = CTL_PORT(io); 13400 13401 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13402 13403 #ifdef CTL_TIME_IO 13404 io->io_hdr.start_time = time_uptime; 13405 getbinuptime(&io->io_hdr.start_bt); 13406 #endif /* CTL_TIME_IO */ 13407 13408 /* Map FE-specific LUN ID into global one. */ 13409 io->io_hdr.nexus.targ_mapped_lun = 13410 ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13411 13412 switch (io->io_hdr.io_type) { 13413 case CTL_IO_SCSI: 13414 case CTL_IO_TASK: 13415 if (ctl_debug & CTL_DEBUG_CDB) 13416 ctl_io_print(io); 13417 ctl_enqueue_incoming(io); 13418 break; 13419 default: 13420 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13421 return (EINVAL); 13422 } 13423 13424 return (CTL_RETVAL_COMPLETE); 13425 } 13426 13427 #ifdef CTL_IO_DELAY 13428 static void 13429 ctl_done_timer_wakeup(void *arg) 13430 { 13431 union ctl_io *io; 13432 13433 io = (union ctl_io *)arg; 13434 ctl_done(io); 13435 } 13436 #endif /* CTL_IO_DELAY */ 13437 13438 void 13439 ctl_serseq_done(union ctl_io *io) 13440 { 13441 struct ctl_lun *lun = CTL_LUN(io);; 13442 13443 if (lun->be_lun == NULL || 13444 lun->be_lun->serseq == CTL_LUN_SERSEQ_OFF) 13445 return; 13446 mtx_lock(&lun->lun_lock); 13447 io->io_hdr.flags |= CTL_FLAG_SERSEQ_DONE; 13448 ctl_check_blocked(lun); 13449 mtx_unlock(&lun->lun_lock); 13450 } 13451 13452 void 13453 ctl_done(union ctl_io *io) 13454 { 13455 13456 /* 13457 * Enable this to catch duplicate completion issues. 13458 */ 13459 #if 0 13460 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13461 printf("%s: type %d msg %d cdb %x iptl: " 13462 "%u:%u:%u tag 0x%04x " 13463 "flag %#x status %x\n", 13464 __func__, 13465 io->io_hdr.io_type, 13466 io->io_hdr.msg_type, 13467 io->scsiio.cdb[0], 13468 io->io_hdr.nexus.initid, 13469 io->io_hdr.nexus.targ_port, 13470 io->io_hdr.nexus.targ_lun, 13471 (io->io_hdr.io_type == 13472 CTL_IO_TASK) ? 13473 io->taskio.tag_num : 13474 io->scsiio.tag_num, 13475 io->io_hdr.flags, 13476 io->io_hdr.status); 13477 } else 13478 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13479 #endif 13480 13481 /* 13482 * This is an internal copy of an I/O, and should not go through 13483 * the normal done processing logic. 13484 */ 13485 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13486 return; 13487 13488 #ifdef CTL_IO_DELAY 13489 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13490 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13491 } else { 13492 struct ctl_lun *lun = CTL_LUN(io); 13493 13494 if ((lun != NULL) 13495 && (lun->delay_info.done_delay > 0)) { 13496 13497 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 13498 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13499 callout_reset(&io->io_hdr.delay_callout, 13500 lun->delay_info.done_delay * hz, 13501 ctl_done_timer_wakeup, io); 13502 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13503 lun->delay_info.done_delay = 0; 13504 return; 13505 } 13506 } 13507 #endif /* CTL_IO_DELAY */ 13508 13509 ctl_enqueue_done(io); 13510 } 13511 13512 static void 13513 ctl_work_thread(void *arg) 13514 { 13515 struct ctl_thread *thr = (struct ctl_thread *)arg; 13516 struct ctl_softc *softc = thr->ctl_softc; 13517 union ctl_io *io; 13518 int retval; 13519 13520 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13521 13522 for (;;) { 13523 /* 13524 * We handle the queues in this order: 13525 * - ISC 13526 * - done queue (to free up resources, unblock other commands) 13527 * - RtR queue 13528 * - incoming queue 13529 * 13530 * If those queues are empty, we break out of the loop and 13531 * go to sleep. 13532 */ 13533 mtx_lock(&thr->queue_lock); 13534 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13535 if (io != NULL) { 13536 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13537 mtx_unlock(&thr->queue_lock); 13538 ctl_handle_isc(io); 13539 continue; 13540 } 13541 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13542 if (io != NULL) { 13543 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13544 /* clear any blocked commands, call fe_done */ 13545 mtx_unlock(&thr->queue_lock); 13546 ctl_process_done(io); 13547 continue; 13548 } 13549 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13550 if (io != NULL) { 13551 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13552 mtx_unlock(&thr->queue_lock); 13553 if (io->io_hdr.io_type == CTL_IO_TASK) 13554 ctl_run_task(io); 13555 else 13556 ctl_scsiio_precheck(softc, &io->scsiio); 13557 continue; 13558 } 13559 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13560 if (io != NULL) { 13561 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13562 mtx_unlock(&thr->queue_lock); 13563 retval = ctl_scsiio(&io->scsiio); 13564 if (retval != CTL_RETVAL_COMPLETE) 13565 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13566 continue; 13567 } 13568 13569 /* Sleep until we have something to do. */ 13570 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13571 } 13572 } 13573 13574 static void 13575 ctl_lun_thread(void *arg) 13576 { 13577 struct ctl_softc *softc = (struct ctl_softc *)arg; 13578 struct ctl_be_lun *be_lun; 13579 13580 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13581 13582 for (;;) { 13583 mtx_lock(&softc->ctl_lock); 13584 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13585 if (be_lun != NULL) { 13586 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13587 mtx_unlock(&softc->ctl_lock); 13588 ctl_create_lun(be_lun); 13589 continue; 13590 } 13591 13592 /* Sleep until we have something to do. */ 13593 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13594 PDROP | PRIBIO, "-", 0); 13595 } 13596 } 13597 13598 static void 13599 ctl_thresh_thread(void *arg) 13600 { 13601 struct ctl_softc *softc = (struct ctl_softc *)arg; 13602 struct ctl_lun *lun; 13603 struct ctl_logical_block_provisioning_page *page; 13604 const char *attr; 13605 union ctl_ha_msg msg; 13606 uint64_t thres, val; 13607 int i, e, set; 13608 13609 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 13610 13611 for (;;) { 13612 mtx_lock(&softc->ctl_lock); 13613 STAILQ_FOREACH(lun, &softc->lun_list, links) { 13614 if ((lun->flags & CTL_LUN_DISABLED) || 13615 (lun->flags & CTL_LUN_NO_MEDIA) || 13616 lun->backend->lun_attr == NULL) 13617 continue; 13618 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 13619 softc->ha_mode == CTL_HA_MODE_XFER) 13620 continue; 13621 if ((lun->MODE_RWER.byte8 & SMS_RWER_LBPERE) == 0) 13622 continue; 13623 e = 0; 13624 page = &lun->MODE_LBP; 13625 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 13626 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 13627 continue; 13628 thres = scsi_4btoul(page->descr[i].count); 13629 thres <<= CTL_LBP_EXPONENT; 13630 switch (page->descr[i].resource) { 13631 case 0x01: 13632 attr = "blocksavail"; 13633 break; 13634 case 0x02: 13635 attr = "blocksused"; 13636 break; 13637 case 0xf1: 13638 attr = "poolblocksavail"; 13639 break; 13640 case 0xf2: 13641 attr = "poolblocksused"; 13642 break; 13643 default: 13644 continue; 13645 } 13646 mtx_unlock(&softc->ctl_lock); // XXX 13647 val = lun->backend->lun_attr( 13648 lun->be_lun->be_lun, attr); 13649 mtx_lock(&softc->ctl_lock); 13650 if (val == UINT64_MAX) 13651 continue; 13652 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 13653 == SLBPPD_ARMING_INC) 13654 e = (val >= thres); 13655 else 13656 e = (val <= thres); 13657 if (e) 13658 break; 13659 } 13660 mtx_lock(&lun->lun_lock); 13661 if (e) { 13662 scsi_u64to8b((uint8_t *)&page->descr[i] - 13663 (uint8_t *)page, lun->ua_tpt_info); 13664 if (lun->lasttpt == 0 || 13665 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 13666 lun->lasttpt = time_uptime; 13667 ctl_est_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13668 set = 1; 13669 } else 13670 set = 0; 13671 } else { 13672 lun->lasttpt = 0; 13673 ctl_clr_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13674 set = -1; 13675 } 13676 mtx_unlock(&lun->lun_lock); 13677 if (set != 0 && 13678 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 13679 /* Send msg to other side. */ 13680 bzero(&msg.ua, sizeof(msg.ua)); 13681 msg.hdr.msg_type = CTL_MSG_UA; 13682 msg.hdr.nexus.initid = -1; 13683 msg.hdr.nexus.targ_port = -1; 13684 msg.hdr.nexus.targ_lun = lun->lun; 13685 msg.hdr.nexus.targ_mapped_lun = lun->lun; 13686 msg.ua.ua_all = 1; 13687 msg.ua.ua_set = (set > 0); 13688 msg.ua.ua_type = CTL_UA_THIN_PROV_THRES; 13689 memcpy(msg.ua.ua_info, lun->ua_tpt_info, 8); 13690 mtx_unlock(&softc->ctl_lock); // XXX 13691 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13692 sizeof(msg.ua), M_WAITOK); 13693 mtx_lock(&softc->ctl_lock); 13694 } 13695 } 13696 mtx_unlock(&softc->ctl_lock); 13697 pause("-", CTL_LBP_PERIOD * hz); 13698 } 13699 } 13700 13701 static void 13702 ctl_enqueue_incoming(union ctl_io *io) 13703 { 13704 struct ctl_softc *softc = CTL_SOFTC(io); 13705 struct ctl_thread *thr; 13706 u_int idx; 13707 13708 idx = (io->io_hdr.nexus.targ_port * 127 + 13709 io->io_hdr.nexus.initid) % worker_threads; 13710 thr = &softc->threads[idx]; 13711 mtx_lock(&thr->queue_lock); 13712 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13713 mtx_unlock(&thr->queue_lock); 13714 wakeup(thr); 13715 } 13716 13717 static void 13718 ctl_enqueue_rtr(union ctl_io *io) 13719 { 13720 struct ctl_softc *softc = CTL_SOFTC(io); 13721 struct ctl_thread *thr; 13722 13723 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13724 mtx_lock(&thr->queue_lock); 13725 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13726 mtx_unlock(&thr->queue_lock); 13727 wakeup(thr); 13728 } 13729 13730 static void 13731 ctl_enqueue_done(union ctl_io *io) 13732 { 13733 struct ctl_softc *softc = CTL_SOFTC(io); 13734 struct ctl_thread *thr; 13735 13736 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13737 mtx_lock(&thr->queue_lock); 13738 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 13739 mtx_unlock(&thr->queue_lock); 13740 wakeup(thr); 13741 } 13742 13743 static void 13744 ctl_enqueue_isc(union ctl_io *io) 13745 { 13746 struct ctl_softc *softc = CTL_SOFTC(io); 13747 struct ctl_thread *thr; 13748 13749 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13750 mtx_lock(&thr->queue_lock); 13751 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 13752 mtx_unlock(&thr->queue_lock); 13753 wakeup(thr); 13754 } 13755 13756 /* 13757 * vim: ts=8 13758 */ 13759