1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2003-2009 Silicon Graphics International Corp. 5 * Copyright (c) 2012 The FreeBSD Foundation 6 * Copyright (c) 2014-2017 Alexander Motin <mav@FreeBSD.org> 7 * Copyright (c) 2017 Jakub Wojciech Klama <jceel@FreeBSD.org> 8 * Copyright (c) 2018 Marcelo Araujo <araujo@FreeBSD.org> 9 * All rights reserved. 10 * 11 * Portions of this software were developed by Edward Tomasz Napierala 12 * under sponsorship from the FreeBSD Foundation. 13 * 14 * Redistribution and use in source and binary forms, with or without 15 * modification, are permitted provided that the following conditions 16 * are met: 17 * 1. Redistributions of source code must retain the above copyright 18 * notice, this list of conditions, and the following disclaimer, 19 * without modification. 20 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 21 * substantially similar to the "NO WARRANTY" disclaimer below 22 * ("Disclaimer") and any redistribution must be conditioned upon 23 * including a substantially similar Disclaimer requirement for further 24 * binary redistribution. 25 * 26 * NO WARRANTY 27 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 28 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 29 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 30 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 31 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 35 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 36 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGES. 38 * 39 * $Id$ 40 */ 41 /* 42 * CAM Target Layer, a SCSI device emulation subsystem. 43 * 44 * Author: Ken Merry <ken@FreeBSD.org> 45 */ 46 47 #include <sys/cdefs.h> 48 __FBSDID("$FreeBSD$"); 49 50 #include <sys/param.h> 51 #include <sys/systm.h> 52 #include <sys/ctype.h> 53 #include <sys/kernel.h> 54 #include <sys/types.h> 55 #include <sys/kthread.h> 56 #include <sys/bio.h> 57 #include <sys/fcntl.h> 58 #include <sys/lock.h> 59 #include <sys/module.h> 60 #include <sys/mutex.h> 61 #include <sys/condvar.h> 62 #include <sys/malloc.h> 63 #include <sys/conf.h> 64 #include <sys/ioccom.h> 65 #include <sys/queue.h> 66 #include <sys/sbuf.h> 67 #include <sys/smp.h> 68 #include <sys/endian.h> 69 #include <sys/proc.h> 70 #include <sys/sched.h> 71 #include <sys/sysctl.h> 72 #include <sys/nv.h> 73 #include <sys/dnv.h> 74 #include <vm/uma.h> 75 76 #include <cam/cam.h> 77 #include <cam/scsi/scsi_all.h> 78 #include <cam/scsi/scsi_cd.h> 79 #include <cam/scsi/scsi_da.h> 80 #include <cam/ctl/ctl_io.h> 81 #include <cam/ctl/ctl.h> 82 #include <cam/ctl/ctl_frontend.h> 83 #include <cam/ctl/ctl_util.h> 84 #include <cam/ctl/ctl_backend.h> 85 #include <cam/ctl/ctl_ioctl.h> 86 #include <cam/ctl/ctl_ha.h> 87 #include <cam/ctl/ctl_private.h> 88 #include <cam/ctl/ctl_debug.h> 89 #include <cam/ctl/ctl_scsi_all.h> 90 #include <cam/ctl/ctl_error.h> 91 92 struct ctl_softc *control_softc = NULL; 93 94 /* 95 * Template mode pages. 96 */ 97 98 /* 99 * Note that these are default values only. The actual values will be 100 * filled in when the user does a mode sense. 101 */ 102 const static struct scsi_da_rw_recovery_page rw_er_page_default = { 103 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 104 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 105 /*byte3*/SMS_RWER_AWRE|SMS_RWER_ARRE, 106 /*read_retry_count*/0, 107 /*correction_span*/0, 108 /*head_offset_count*/0, 109 /*data_strobe_offset_cnt*/0, 110 /*byte8*/SMS_RWER_LBPERE, 111 /*write_retry_count*/0, 112 /*reserved2*/0, 113 /*recovery_time_limit*/{0, 0}, 114 }; 115 116 const static struct scsi_da_rw_recovery_page rw_er_page_changeable = { 117 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 118 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 119 /*byte3*/SMS_RWER_PER, 120 /*read_retry_count*/0, 121 /*correction_span*/0, 122 /*head_offset_count*/0, 123 /*data_strobe_offset_cnt*/0, 124 /*byte8*/SMS_RWER_LBPERE, 125 /*write_retry_count*/0, 126 /*reserved2*/0, 127 /*recovery_time_limit*/{0, 0}, 128 }; 129 130 const static struct scsi_format_page format_page_default = { 131 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 132 /*page_length*/sizeof(struct scsi_format_page) - 2, 133 /*tracks_per_zone*/ {0, 0}, 134 /*alt_sectors_per_zone*/ {0, 0}, 135 /*alt_tracks_per_zone*/ {0, 0}, 136 /*alt_tracks_per_lun*/ {0, 0}, 137 /*sectors_per_track*/ {(CTL_DEFAULT_SECTORS_PER_TRACK >> 8) & 0xff, 138 CTL_DEFAULT_SECTORS_PER_TRACK & 0xff}, 139 /*bytes_per_sector*/ {0, 0}, 140 /*interleave*/ {0, 0}, 141 /*track_skew*/ {0, 0}, 142 /*cylinder_skew*/ {0, 0}, 143 /*flags*/ SFP_HSEC, 144 /*reserved*/ {0, 0, 0} 145 }; 146 147 const static struct scsi_format_page format_page_changeable = { 148 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 149 /*page_length*/sizeof(struct scsi_format_page) - 2, 150 /*tracks_per_zone*/ {0, 0}, 151 /*alt_sectors_per_zone*/ {0, 0}, 152 /*alt_tracks_per_zone*/ {0, 0}, 153 /*alt_tracks_per_lun*/ {0, 0}, 154 /*sectors_per_track*/ {0, 0}, 155 /*bytes_per_sector*/ {0, 0}, 156 /*interleave*/ {0, 0}, 157 /*track_skew*/ {0, 0}, 158 /*cylinder_skew*/ {0, 0}, 159 /*flags*/ 0, 160 /*reserved*/ {0, 0, 0} 161 }; 162 163 const static struct scsi_rigid_disk_page rigid_disk_page_default = { 164 /*page_code*/SMS_RIGID_DISK_PAGE, 165 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 166 /*cylinders*/ {0, 0, 0}, 167 /*heads*/ CTL_DEFAULT_HEADS, 168 /*start_write_precomp*/ {0, 0, 0}, 169 /*start_reduced_current*/ {0, 0, 0}, 170 /*step_rate*/ {0, 0}, 171 /*landing_zone_cylinder*/ {0, 0, 0}, 172 /*rpl*/ SRDP_RPL_DISABLED, 173 /*rotational_offset*/ 0, 174 /*reserved1*/ 0, 175 /*rotation_rate*/ {(CTL_DEFAULT_ROTATION_RATE >> 8) & 0xff, 176 CTL_DEFAULT_ROTATION_RATE & 0xff}, 177 /*reserved2*/ {0, 0} 178 }; 179 180 const static struct scsi_rigid_disk_page rigid_disk_page_changeable = { 181 /*page_code*/SMS_RIGID_DISK_PAGE, 182 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 183 /*cylinders*/ {0, 0, 0}, 184 /*heads*/ 0, 185 /*start_write_precomp*/ {0, 0, 0}, 186 /*start_reduced_current*/ {0, 0, 0}, 187 /*step_rate*/ {0, 0}, 188 /*landing_zone_cylinder*/ {0, 0, 0}, 189 /*rpl*/ 0, 190 /*rotational_offset*/ 0, 191 /*reserved1*/ 0, 192 /*rotation_rate*/ {0, 0}, 193 /*reserved2*/ {0, 0} 194 }; 195 196 const static struct scsi_da_verify_recovery_page verify_er_page_default = { 197 /*page_code*/SMS_VERIFY_ERROR_RECOVERY_PAGE, 198 /*page_length*/sizeof(struct scsi_da_verify_recovery_page) - 2, 199 /*byte3*/0, 200 /*read_retry_count*/0, 201 /*reserved*/{ 0, 0, 0, 0, 0, 0 }, 202 /*recovery_time_limit*/{0, 0}, 203 }; 204 205 const static struct scsi_da_verify_recovery_page verify_er_page_changeable = { 206 /*page_code*/SMS_VERIFY_ERROR_RECOVERY_PAGE, 207 /*page_length*/sizeof(struct scsi_da_verify_recovery_page) - 2, 208 /*byte3*/SMS_VER_PER, 209 /*read_retry_count*/0, 210 /*reserved*/{ 0, 0, 0, 0, 0, 0 }, 211 /*recovery_time_limit*/{0, 0}, 212 }; 213 214 const static struct scsi_caching_page caching_page_default = { 215 /*page_code*/SMS_CACHING_PAGE, 216 /*page_length*/sizeof(struct scsi_caching_page) - 2, 217 /*flags1*/ SCP_DISC | SCP_WCE, 218 /*ret_priority*/ 0, 219 /*disable_pf_transfer_len*/ {0xff, 0xff}, 220 /*min_prefetch*/ {0, 0}, 221 /*max_prefetch*/ {0xff, 0xff}, 222 /*max_pf_ceiling*/ {0xff, 0xff}, 223 /*flags2*/ 0, 224 /*cache_segments*/ 0, 225 /*cache_seg_size*/ {0, 0}, 226 /*reserved*/ 0, 227 /*non_cache_seg_size*/ {0, 0, 0} 228 }; 229 230 const static struct scsi_caching_page caching_page_changeable = { 231 /*page_code*/SMS_CACHING_PAGE, 232 /*page_length*/sizeof(struct scsi_caching_page) - 2, 233 /*flags1*/ SCP_WCE | SCP_RCD, 234 /*ret_priority*/ 0, 235 /*disable_pf_transfer_len*/ {0, 0}, 236 /*min_prefetch*/ {0, 0}, 237 /*max_prefetch*/ {0, 0}, 238 /*max_pf_ceiling*/ {0, 0}, 239 /*flags2*/ 0, 240 /*cache_segments*/ 0, 241 /*cache_seg_size*/ {0, 0}, 242 /*reserved*/ 0, 243 /*non_cache_seg_size*/ {0, 0, 0} 244 }; 245 246 const static struct scsi_control_page control_page_default = { 247 /*page_code*/SMS_CONTROL_MODE_PAGE, 248 /*page_length*/sizeof(struct scsi_control_page) - 2, 249 /*rlec*/0, 250 /*queue_flags*/SCP_QUEUE_ALG_RESTRICTED, 251 /*eca_and_aen*/0, 252 /*flags4*/SCP_TAS, 253 /*aen_holdoff_period*/{0, 0}, 254 /*busy_timeout_period*/{0, 0}, 255 /*extended_selftest_completion_time*/{0, 0} 256 }; 257 258 const static struct scsi_control_page control_page_changeable = { 259 /*page_code*/SMS_CONTROL_MODE_PAGE, 260 /*page_length*/sizeof(struct scsi_control_page) - 2, 261 /*rlec*/SCP_DSENSE, 262 /*queue_flags*/SCP_QUEUE_ALG_MASK | SCP_NUAR, 263 /*eca_and_aen*/SCP_SWP, 264 /*flags4*/0, 265 /*aen_holdoff_period*/{0, 0}, 266 /*busy_timeout_period*/{0, 0}, 267 /*extended_selftest_completion_time*/{0, 0} 268 }; 269 270 #define CTL_CEM_LEN (sizeof(struct scsi_control_ext_page) - 4) 271 272 const static struct scsi_control_ext_page control_ext_page_default = { 273 /*page_code*/SMS_CONTROL_MODE_PAGE | SMPH_SPF, 274 /*subpage_code*/0x01, 275 /*page_length*/{CTL_CEM_LEN >> 8, CTL_CEM_LEN}, 276 /*flags*/0, 277 /*prio*/0, 278 /*max_sense*/0 279 }; 280 281 const static struct scsi_control_ext_page control_ext_page_changeable = { 282 /*page_code*/SMS_CONTROL_MODE_PAGE | SMPH_SPF, 283 /*subpage_code*/0x01, 284 /*page_length*/{CTL_CEM_LEN >> 8, CTL_CEM_LEN}, 285 /*flags*/0, 286 /*prio*/0, 287 /*max_sense*/0xff 288 }; 289 290 const static struct scsi_info_exceptions_page ie_page_default = { 291 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 292 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 293 /*info_flags*/SIEP_FLAGS_EWASC, 294 /*mrie*/SIEP_MRIE_NO, 295 /*interval_timer*/{0, 0, 0, 0}, 296 /*report_count*/{0, 0, 0, 1} 297 }; 298 299 const static struct scsi_info_exceptions_page ie_page_changeable = { 300 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 301 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 302 /*info_flags*/SIEP_FLAGS_EWASC | SIEP_FLAGS_DEXCPT | SIEP_FLAGS_TEST | 303 SIEP_FLAGS_LOGERR, 304 /*mrie*/0x0f, 305 /*interval_timer*/{0xff, 0xff, 0xff, 0xff}, 306 /*report_count*/{0xff, 0xff, 0xff, 0xff} 307 }; 308 309 #define CTL_LBPM_LEN (sizeof(struct ctl_logical_block_provisioning_page) - 4) 310 311 const static struct ctl_logical_block_provisioning_page lbp_page_default = {{ 312 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 313 /*subpage_code*/0x02, 314 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 315 /*flags*/0, 316 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 317 /*descr*/{}}, 318 {{/*flags*/0, 319 /*resource*/0x01, 320 /*reserved*/{0, 0}, 321 /*count*/{0, 0, 0, 0}}, 322 {/*flags*/0, 323 /*resource*/0x02, 324 /*reserved*/{0, 0}, 325 /*count*/{0, 0, 0, 0}}, 326 {/*flags*/0, 327 /*resource*/0xf1, 328 /*reserved*/{0, 0}, 329 /*count*/{0, 0, 0, 0}}, 330 {/*flags*/0, 331 /*resource*/0xf2, 332 /*reserved*/{0, 0}, 333 /*count*/{0, 0, 0, 0}} 334 } 335 }; 336 337 const static struct ctl_logical_block_provisioning_page lbp_page_changeable = {{ 338 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 339 /*subpage_code*/0x02, 340 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 341 /*flags*/SLBPP_SITUA, 342 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 343 /*descr*/{}}, 344 {{/*flags*/0, 345 /*resource*/0, 346 /*reserved*/{0, 0}, 347 /*count*/{0, 0, 0, 0}}, 348 {/*flags*/0, 349 /*resource*/0, 350 /*reserved*/{0, 0}, 351 /*count*/{0, 0, 0, 0}}, 352 {/*flags*/0, 353 /*resource*/0, 354 /*reserved*/{0, 0}, 355 /*count*/{0, 0, 0, 0}}, 356 {/*flags*/0, 357 /*resource*/0, 358 /*reserved*/{0, 0}, 359 /*count*/{0, 0, 0, 0}} 360 } 361 }; 362 363 const static struct scsi_cddvd_capabilities_page cddvd_page_default = { 364 /*page_code*/SMS_CDDVD_CAPS_PAGE, 365 /*page_length*/sizeof(struct scsi_cddvd_capabilities_page) - 2, 366 /*caps1*/0x3f, 367 /*caps2*/0x00, 368 /*caps3*/0xf0, 369 /*caps4*/0x00, 370 /*caps5*/0x29, 371 /*caps6*/0x00, 372 /*obsolete*/{0, 0}, 373 /*nvol_levels*/{0, 0}, 374 /*buffer_size*/{8, 0}, 375 /*obsolete2*/{0, 0}, 376 /*reserved*/0, 377 /*digital*/0, 378 /*obsolete3*/0, 379 /*copy_management*/0, 380 /*reserved2*/0, 381 /*rotation_control*/0, 382 /*cur_write_speed*/0, 383 /*num_speed_descr*/0, 384 }; 385 386 const static struct scsi_cddvd_capabilities_page cddvd_page_changeable = { 387 /*page_code*/SMS_CDDVD_CAPS_PAGE, 388 /*page_length*/sizeof(struct scsi_cddvd_capabilities_page) - 2, 389 /*caps1*/0, 390 /*caps2*/0, 391 /*caps3*/0, 392 /*caps4*/0, 393 /*caps5*/0, 394 /*caps6*/0, 395 /*obsolete*/{0, 0}, 396 /*nvol_levels*/{0, 0}, 397 /*buffer_size*/{0, 0}, 398 /*obsolete2*/{0, 0}, 399 /*reserved*/0, 400 /*digital*/0, 401 /*obsolete3*/0, 402 /*copy_management*/0, 403 /*reserved2*/0, 404 /*rotation_control*/0, 405 /*cur_write_speed*/0, 406 /*num_speed_descr*/0, 407 }; 408 409 SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, 410 "CAM Target Layer"); 411 static int worker_threads = -1; 412 SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 413 &worker_threads, 1, "Number of worker threads"); 414 static int ctl_debug = CTL_DEBUG_NONE; 415 SYSCTL_INT(_kern_cam_ctl, OID_AUTO, debug, CTLFLAG_RWTUN, 416 &ctl_debug, 0, "Enabled debug flags"); 417 static int ctl_lun_map_size = 1024; 418 SYSCTL_INT(_kern_cam_ctl, OID_AUTO, lun_map_size, CTLFLAG_RWTUN, 419 &ctl_lun_map_size, 0, "Size of per-port LUN map (max LUN + 1)"); 420 #ifdef CTL_TIME_IO 421 static int ctl_time_io_secs = CTL_TIME_IO_DEFAULT_SECS; 422 SYSCTL_INT(_kern_cam_ctl, OID_AUTO, time_io_secs, CTLFLAG_RWTUN, 423 &ctl_time_io_secs, 0, "Log requests taking more seconds"); 424 #endif 425 426 /* 427 * Maximum number of LUNs we support. MUST be a power of 2. 428 */ 429 #define CTL_DEFAULT_MAX_LUNS 1024 430 static int ctl_max_luns = CTL_DEFAULT_MAX_LUNS; 431 TUNABLE_INT("kern.cam.ctl.max_luns", &ctl_max_luns); 432 SYSCTL_INT(_kern_cam_ctl, OID_AUTO, max_luns, CTLFLAG_RDTUN, 433 &ctl_max_luns, CTL_DEFAULT_MAX_LUNS, "Maximum number of LUNs"); 434 435 /* 436 * Maximum number of ports registered at one time. 437 */ 438 #define CTL_DEFAULT_MAX_PORTS 256 439 static int ctl_max_ports = CTL_DEFAULT_MAX_PORTS; 440 TUNABLE_INT("kern.cam.ctl.max_ports", &ctl_max_ports); 441 SYSCTL_INT(_kern_cam_ctl, OID_AUTO, max_ports, CTLFLAG_RDTUN, 442 &ctl_max_ports, CTL_DEFAULT_MAX_LUNS, "Maximum number of ports"); 443 444 /* 445 * Maximum number of initiators we support. 446 */ 447 #define CTL_MAX_INITIATORS (CTL_MAX_INIT_PER_PORT * ctl_max_ports) 448 449 /* 450 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 451 * Extended INQUIRY Data (0x86), Mode Page Policy (0x87), 452 * SCSI Ports (0x88), Third-party Copy (0x8F), SCSI Feature Sets (0x92), 453 * Block limits (0xB0), Block Device Characteristics (0xB1) and 454 * Logical Block Provisioning (0xB2) 455 */ 456 #define SCSI_EVPD_NUM_SUPPORTED_PAGES 11 457 458 static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 459 int param); 460 static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 461 static void ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest); 462 static int ctl_init(void); 463 static int ctl_shutdown(void); 464 static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 465 static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 466 static void ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 467 static void ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 468 struct ctl_ooa *ooa_hdr, 469 struct ctl_ooa_entry *kern_entries); 470 static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 471 struct thread *td); 472 static int ctl_enable_lun(struct ctl_lun *lun); 473 static int ctl_disable_lun(struct ctl_lun *lun); 474 static int ctl_free_lun(struct ctl_lun *lun); 475 476 static int ctl_do_mode_select(union ctl_io *io); 477 static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 478 uint64_t res_key, uint64_t sa_res_key, 479 uint8_t type, uint32_t residx, 480 struct ctl_scsiio *ctsio, 481 struct scsi_per_res_out *cdb, 482 struct scsi_per_res_out_parms* param); 483 static void ctl_pro_preempt_other(struct ctl_lun *lun, 484 union ctl_ha_msg *msg); 485 static void ctl_hndl_per_res_out_on_other_sc(union ctl_io *io); 486 static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 487 static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 488 static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 489 static int ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len); 490 static int ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len); 491 static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 492 int alloc_len); 493 static int ctl_inquiry_evpd_sfs(struct ctl_scsiio *ctsio, int alloc_len); 494 static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 495 int alloc_len); 496 static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 497 static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 498 static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 499 static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 500 static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len); 501 static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2, 502 bool seq); 503 static ctl_action ctl_seq_check(union ctl_io *io1, union ctl_io *io2); 504 static ctl_action ctl_check_for_blockage(struct ctl_lun *lun, 505 union ctl_io *pending_io, const uint8_t *serialize_row, 506 union ctl_io *ooa_io); 507 static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 508 union ctl_io **starting_io); 509 static void ctl_try_unblock_io(struct ctl_lun *lun, union ctl_io *io, 510 bool skip); 511 static void ctl_try_unblock_others(struct ctl_lun *lun, union ctl_io *io, 512 bool skip); 513 static int ctl_scsiio_lun_check(struct ctl_lun *lun, 514 const struct ctl_cmd_entry *entry, 515 struct ctl_scsiio *ctsio); 516 static void ctl_failover_lun(union ctl_io *io); 517 static void ctl_scsiio_precheck(struct ctl_scsiio *ctsio); 518 static int ctl_scsiio(struct ctl_scsiio *ctsio); 519 520 static int ctl_target_reset(union ctl_io *io); 521 static void ctl_do_lun_reset(struct ctl_lun *lun, uint32_t initidx, 522 ctl_ua_type ua_type); 523 static int ctl_lun_reset(union ctl_io *io); 524 static int ctl_abort_task(union ctl_io *io); 525 static int ctl_abort_task_set(union ctl_io *io); 526 static int ctl_query_task(union ctl_io *io, int task_set); 527 static void ctl_i_t_nexus_loss(struct ctl_softc *softc, uint32_t initidx, 528 ctl_ua_type ua_type); 529 static int ctl_i_t_nexus_reset(union ctl_io *io); 530 static int ctl_query_async_event(union ctl_io *io); 531 static void ctl_run_task(union ctl_io *io); 532 #ifdef CTL_IO_DELAY 533 static void ctl_datamove_timer_wakeup(void *arg); 534 static void ctl_done_timer_wakeup(void *arg); 535 #endif /* CTL_IO_DELAY */ 536 537 static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 538 static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 539 static int ctl_datamove_remote_dm_write_cb(union ctl_io *io, bool samethr); 540 static void ctl_datamove_remote_write(union ctl_io *io); 541 static int ctl_datamove_remote_dm_read_cb(union ctl_io *io, bool samethr); 542 static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 543 static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 544 static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 545 ctl_ha_dt_cb callback); 546 static void ctl_datamove_remote_read(union ctl_io *io); 547 static void ctl_datamove_remote(union ctl_io *io); 548 static void ctl_process_done(union ctl_io *io); 549 static void ctl_thresh_thread(void *arg); 550 static void ctl_work_thread(void *arg); 551 static void ctl_enqueue_incoming(union ctl_io *io); 552 static void ctl_enqueue_rtr(union ctl_io *io); 553 static void ctl_enqueue_done(union ctl_io *io); 554 static void ctl_enqueue_isc(union ctl_io *io); 555 static const struct ctl_cmd_entry * 556 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa); 557 static const struct ctl_cmd_entry * 558 ctl_validate_command(struct ctl_scsiio *ctsio); 559 static int ctl_cmd_applicable(uint8_t lun_type, 560 const struct ctl_cmd_entry *entry); 561 static int ctl_ha_init(void); 562 static int ctl_ha_shutdown(void); 563 564 static uint64_t ctl_get_prkey(struct ctl_lun *lun, uint32_t residx); 565 static void ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx); 566 static void ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx); 567 static void ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key); 568 569 /* 570 * Load the serialization table. This isn't very pretty, but is probably 571 * the easiest way to do it. 572 */ 573 #include "ctl_ser_table.c" 574 575 /* 576 * We only need to define open, close and ioctl routines for this driver. 577 */ 578 static struct cdevsw ctl_cdevsw = { 579 .d_version = D_VERSION, 580 .d_flags = 0, 581 .d_open = ctl_open, 582 .d_close = ctl_close, 583 .d_ioctl = ctl_ioctl, 584 .d_name = "ctl", 585 }; 586 587 MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 588 589 static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 590 591 static moduledata_t ctl_moduledata = { 592 "ctl", 593 ctl_module_event_handler, 594 NULL 595 }; 596 597 DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 598 MODULE_VERSION(ctl, 1); 599 600 static struct ctl_frontend ha_frontend = 601 { 602 .name = "ha", 603 .init = ctl_ha_init, 604 .shutdown = ctl_ha_shutdown, 605 }; 606 607 static int 608 ctl_ha_init(void) 609 { 610 struct ctl_softc *softc = control_softc; 611 612 if (ctl_pool_create(softc, "othersc", CTL_POOL_ENTRIES_OTHER_SC, 613 &softc->othersc_pool) != 0) 614 return (ENOMEM); 615 if (ctl_ha_msg_init(softc) != CTL_HA_STATUS_SUCCESS) { 616 ctl_pool_free(softc->othersc_pool); 617 return (EIO); 618 } 619 if (ctl_ha_msg_register(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 620 != CTL_HA_STATUS_SUCCESS) { 621 ctl_ha_msg_destroy(softc); 622 ctl_pool_free(softc->othersc_pool); 623 return (EIO); 624 } 625 return (0); 626 }; 627 628 static int 629 ctl_ha_shutdown(void) 630 { 631 struct ctl_softc *softc = control_softc; 632 struct ctl_port *port; 633 634 ctl_ha_msg_shutdown(softc); 635 if (ctl_ha_msg_deregister(CTL_HA_CHAN_CTL) != CTL_HA_STATUS_SUCCESS) 636 return (EIO); 637 if (ctl_ha_msg_destroy(softc) != CTL_HA_STATUS_SUCCESS) 638 return (EIO); 639 ctl_pool_free(softc->othersc_pool); 640 while ((port = STAILQ_FIRST(&ha_frontend.port_list)) != NULL) { 641 ctl_port_deregister(port); 642 free(port->port_name, M_CTL); 643 free(port, M_CTL); 644 } 645 return (0); 646 }; 647 648 static void 649 ctl_ha_datamove(union ctl_io *io) 650 { 651 struct ctl_lun *lun = CTL_LUN(io); 652 struct ctl_sg_entry *sgl; 653 union ctl_ha_msg msg; 654 uint32_t sg_entries_sent; 655 int do_sg_copy, i, j; 656 657 memset(&msg.dt, 0, sizeof(msg.dt)); 658 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 659 msg.hdr.original_sc = io->io_hdr.remote_io; 660 msg.hdr.serializing_sc = io; 661 msg.hdr.nexus = io->io_hdr.nexus; 662 msg.hdr.status = io->io_hdr.status; 663 msg.dt.flags = io->io_hdr.flags; 664 665 /* 666 * We convert everything into a S/G list here. We can't 667 * pass by reference, only by value between controllers. 668 * So we can't pass a pointer to the S/G list, only as many 669 * S/G entries as we can fit in here. If it's possible for 670 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 671 * then we need to break this up into multiple transfers. 672 */ 673 if (io->scsiio.kern_sg_entries == 0) { 674 msg.dt.kern_sg_entries = 1; 675 #if 0 676 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 677 msg.dt.sg_list[0].addr = io->scsiio.kern_data_ptr; 678 } else { 679 /* XXX KDM use busdma here! */ 680 msg.dt.sg_list[0].addr = 681 (void *)vtophys(io->scsiio.kern_data_ptr); 682 } 683 #else 684 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 685 ("HA does not support BUS_ADDR")); 686 msg.dt.sg_list[0].addr = io->scsiio.kern_data_ptr; 687 #endif 688 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 689 do_sg_copy = 0; 690 } else { 691 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 692 do_sg_copy = 1; 693 } 694 695 msg.dt.kern_data_len = io->scsiio.kern_data_len; 696 msg.dt.kern_total_len = io->scsiio.kern_total_len; 697 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 698 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 699 msg.dt.sg_sequence = 0; 700 701 /* 702 * Loop until we've sent all of the S/G entries. On the 703 * other end, we'll recompose these S/G entries into one 704 * contiguous list before processing. 705 */ 706 for (sg_entries_sent = 0; sg_entries_sent < msg.dt.kern_sg_entries; 707 msg.dt.sg_sequence++) { 708 msg.dt.cur_sg_entries = MIN((sizeof(msg.dt.sg_list) / 709 sizeof(msg.dt.sg_list[0])), 710 msg.dt.kern_sg_entries - sg_entries_sent); 711 if (do_sg_copy != 0) { 712 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 713 for (i = sg_entries_sent, j = 0; 714 i < msg.dt.cur_sg_entries; i++, j++) { 715 #if 0 716 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 717 msg.dt.sg_list[j].addr = sgl[i].addr; 718 } else { 719 /* XXX KDM use busdma here! */ 720 msg.dt.sg_list[j].addr = 721 (void *)vtophys(sgl[i].addr); 722 } 723 #else 724 KASSERT((io->io_hdr.flags & 725 CTL_FLAG_BUS_ADDR) == 0, 726 ("HA does not support BUS_ADDR")); 727 msg.dt.sg_list[j].addr = sgl[i].addr; 728 #endif 729 msg.dt.sg_list[j].len = sgl[i].len; 730 } 731 } 732 733 sg_entries_sent += msg.dt.cur_sg_entries; 734 msg.dt.sg_last = (sg_entries_sent >= msg.dt.kern_sg_entries); 735 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 736 sizeof(msg.dt) - sizeof(msg.dt.sg_list) + 737 sizeof(struct ctl_sg_entry) * msg.dt.cur_sg_entries, 738 M_WAITOK) > CTL_HA_STATUS_SUCCESS) { 739 io->io_hdr.port_status = 31341; 740 ctl_datamove_done(io, true); 741 return; 742 } 743 msg.dt.sent_sg_entries = sg_entries_sent; 744 } 745 746 /* 747 * Officially handover the request from us to peer. 748 * If failover has just happened, then we must return error. 749 * If failover happen just after, then it is not our problem. 750 */ 751 if (lun) 752 mtx_lock(&lun->lun_lock); 753 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 754 if (lun) 755 mtx_unlock(&lun->lun_lock); 756 io->io_hdr.port_status = 31342; 757 ctl_datamove_done(io, true); 758 return; 759 } 760 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 761 io->io_hdr.flags |= CTL_FLAG_DMA_INPROG; 762 if (lun) 763 mtx_unlock(&lun->lun_lock); 764 } 765 766 static void 767 ctl_ha_done(union ctl_io *io) 768 { 769 union ctl_ha_msg msg; 770 771 if (io->io_hdr.io_type == CTL_IO_SCSI) { 772 memset(&msg, 0, sizeof(msg)); 773 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 774 msg.hdr.original_sc = io->io_hdr.remote_io; 775 msg.hdr.nexus = io->io_hdr.nexus; 776 msg.hdr.status = io->io_hdr.status; 777 msg.scsi.scsi_status = io->scsiio.scsi_status; 778 msg.scsi.tag_num = io->scsiio.tag_num; 779 msg.scsi.tag_type = io->scsiio.tag_type; 780 msg.scsi.sense_len = io->scsiio.sense_len; 781 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 782 io->scsiio.sense_len); 783 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 784 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 785 msg.scsi.sense_len, M_WAITOK); 786 } 787 ctl_free_io(io); 788 } 789 790 static void 791 ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 792 union ctl_ha_msg *msg_info) 793 { 794 struct ctl_scsiio *ctsio; 795 796 if (msg_info->hdr.original_sc == NULL) { 797 printf("%s: original_sc == NULL!\n", __func__); 798 /* XXX KDM now what? */ 799 return; 800 } 801 802 ctsio = &msg_info->hdr.original_sc->scsiio; 803 ctsio->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 804 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 805 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 806 ctsio->io_hdr.status = msg_info->hdr.status; 807 ctsio->scsi_status = msg_info->scsi.scsi_status; 808 ctsio->sense_len = msg_info->scsi.sense_len; 809 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 810 msg_info->scsi.sense_len); 811 ctl_enqueue_isc((union ctl_io *)ctsio); 812 } 813 814 static void 815 ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 816 union ctl_ha_msg *msg_info) 817 { 818 struct ctl_scsiio *ctsio; 819 820 if (msg_info->hdr.serializing_sc == NULL) { 821 printf("%s: serializing_sc == NULL!\n", __func__); 822 /* XXX KDM now what? */ 823 return; 824 } 825 826 ctsio = &msg_info->hdr.serializing_sc->scsiio; 827 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 828 ctl_enqueue_isc((union ctl_io *)ctsio); 829 } 830 831 void 832 ctl_isc_announce_lun(struct ctl_lun *lun) 833 { 834 struct ctl_softc *softc = lun->ctl_softc; 835 union ctl_ha_msg *msg; 836 struct ctl_ha_msg_lun_pr_key pr_key; 837 int i, k; 838 839 if (softc->ha_link != CTL_HA_LINK_ONLINE) 840 return; 841 mtx_lock(&lun->lun_lock); 842 i = sizeof(msg->lun); 843 if (lun->lun_devid) 844 i += lun->lun_devid->len; 845 i += sizeof(pr_key) * lun->pr_key_count; 846 alloc: 847 mtx_unlock(&lun->lun_lock); 848 msg = malloc(i, M_CTL, M_WAITOK); 849 mtx_lock(&lun->lun_lock); 850 k = sizeof(msg->lun); 851 if (lun->lun_devid) 852 k += lun->lun_devid->len; 853 k += sizeof(pr_key) * lun->pr_key_count; 854 if (i < k) { 855 free(msg, M_CTL); 856 i = k; 857 goto alloc; 858 } 859 bzero(&msg->lun, sizeof(msg->lun)); 860 msg->hdr.msg_type = CTL_MSG_LUN_SYNC; 861 msg->hdr.nexus.targ_lun = lun->lun; 862 msg->hdr.nexus.targ_mapped_lun = lun->lun; 863 msg->lun.flags = lun->flags; 864 msg->lun.pr_generation = lun->pr_generation; 865 msg->lun.pr_res_idx = lun->pr_res_idx; 866 msg->lun.pr_res_type = lun->pr_res_type; 867 msg->lun.pr_key_count = lun->pr_key_count; 868 i = 0; 869 if (lun->lun_devid) { 870 msg->lun.lun_devid_len = lun->lun_devid->len; 871 memcpy(&msg->lun.data[i], lun->lun_devid->data, 872 msg->lun.lun_devid_len); 873 i += msg->lun.lun_devid_len; 874 } 875 for (k = 0; k < CTL_MAX_INITIATORS; k++) { 876 if ((pr_key.pr_key = ctl_get_prkey(lun, k)) == 0) 877 continue; 878 pr_key.pr_iid = k; 879 memcpy(&msg->lun.data[i], &pr_key, sizeof(pr_key)); 880 i += sizeof(pr_key); 881 } 882 mtx_unlock(&lun->lun_lock); 883 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->lun, sizeof(msg->lun) + i, 884 M_WAITOK); 885 free(msg, M_CTL); 886 887 if (lun->flags & CTL_LUN_PRIMARY_SC) { 888 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 889 ctl_isc_announce_mode(lun, -1, 890 lun->mode_pages.index[i].page_code & SMPH_PC_MASK, 891 lun->mode_pages.index[i].subpage); 892 } 893 } 894 } 895 896 void 897 ctl_isc_announce_port(struct ctl_port *port) 898 { 899 struct ctl_softc *softc = port->ctl_softc; 900 union ctl_ha_msg *msg; 901 int i; 902 903 if (port->targ_port < softc->port_min || 904 port->targ_port >= softc->port_max || 905 softc->ha_link != CTL_HA_LINK_ONLINE) 906 return; 907 i = sizeof(msg->port) + strlen(port->port_name) + 1; 908 if (port->lun_map) 909 i += port->lun_map_size * sizeof(uint32_t); 910 if (port->port_devid) 911 i += port->port_devid->len; 912 if (port->target_devid) 913 i += port->target_devid->len; 914 if (port->init_devid) 915 i += port->init_devid->len; 916 msg = malloc(i, M_CTL, M_WAITOK); 917 bzero(&msg->port, sizeof(msg->port)); 918 msg->hdr.msg_type = CTL_MSG_PORT_SYNC; 919 msg->hdr.nexus.targ_port = port->targ_port; 920 msg->port.port_type = port->port_type; 921 msg->port.physical_port = port->physical_port; 922 msg->port.virtual_port = port->virtual_port; 923 msg->port.status = port->status; 924 i = 0; 925 msg->port.name_len = sprintf(&msg->port.data[i], 926 "%d:%s", softc->ha_id, port->port_name) + 1; 927 i += msg->port.name_len; 928 if (port->lun_map) { 929 msg->port.lun_map_len = port->lun_map_size * sizeof(uint32_t); 930 memcpy(&msg->port.data[i], port->lun_map, 931 msg->port.lun_map_len); 932 i += msg->port.lun_map_len; 933 } 934 if (port->port_devid) { 935 msg->port.port_devid_len = port->port_devid->len; 936 memcpy(&msg->port.data[i], port->port_devid->data, 937 msg->port.port_devid_len); 938 i += msg->port.port_devid_len; 939 } 940 if (port->target_devid) { 941 msg->port.target_devid_len = port->target_devid->len; 942 memcpy(&msg->port.data[i], port->target_devid->data, 943 msg->port.target_devid_len); 944 i += msg->port.target_devid_len; 945 } 946 if (port->init_devid) { 947 msg->port.init_devid_len = port->init_devid->len; 948 memcpy(&msg->port.data[i], port->init_devid->data, 949 msg->port.init_devid_len); 950 i += msg->port.init_devid_len; 951 } 952 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 953 M_WAITOK); 954 free(msg, M_CTL); 955 } 956 957 void 958 ctl_isc_announce_iid(struct ctl_port *port, int iid) 959 { 960 struct ctl_softc *softc = port->ctl_softc; 961 union ctl_ha_msg *msg; 962 int i, l; 963 964 if (port->targ_port < softc->port_min || 965 port->targ_port >= softc->port_max || 966 softc->ha_link != CTL_HA_LINK_ONLINE) 967 return; 968 mtx_lock(&softc->ctl_lock); 969 i = sizeof(msg->iid); 970 l = 0; 971 if (port->wwpn_iid[iid].name) 972 l = strlen(port->wwpn_iid[iid].name) + 1; 973 i += l; 974 msg = malloc(i, M_CTL, M_NOWAIT); 975 if (msg == NULL) { 976 mtx_unlock(&softc->ctl_lock); 977 return; 978 } 979 bzero(&msg->iid, sizeof(msg->iid)); 980 msg->hdr.msg_type = CTL_MSG_IID_SYNC; 981 msg->hdr.nexus.targ_port = port->targ_port; 982 msg->hdr.nexus.initid = iid; 983 msg->iid.in_use = port->wwpn_iid[iid].in_use; 984 msg->iid.name_len = l; 985 msg->iid.wwpn = port->wwpn_iid[iid].wwpn; 986 if (port->wwpn_iid[iid].name) 987 strlcpy(msg->iid.data, port->wwpn_iid[iid].name, l); 988 mtx_unlock(&softc->ctl_lock); 989 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->iid, i, M_NOWAIT); 990 free(msg, M_CTL); 991 } 992 993 void 994 ctl_isc_announce_mode(struct ctl_lun *lun, uint32_t initidx, 995 uint8_t page, uint8_t subpage) 996 { 997 struct ctl_softc *softc = lun->ctl_softc; 998 union ctl_ha_msg *msg; 999 u_int i, l; 1000 1001 if (softc->ha_link != CTL_HA_LINK_ONLINE) 1002 return; 1003 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 1004 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) == 1005 page && lun->mode_pages.index[i].subpage == subpage) 1006 break; 1007 } 1008 if (i == CTL_NUM_MODE_PAGES) 1009 return; 1010 1011 /* Don't try to replicate pages not present on this device. */ 1012 if (lun->mode_pages.index[i].page_data == NULL) 1013 return; 1014 1015 l = sizeof(msg->mode) + lun->mode_pages.index[i].page_len; 1016 msg = malloc(l, M_CTL, M_WAITOK | M_ZERO); 1017 msg->hdr.msg_type = CTL_MSG_MODE_SYNC; 1018 msg->hdr.nexus.targ_port = initidx / CTL_MAX_INIT_PER_PORT; 1019 msg->hdr.nexus.initid = initidx % CTL_MAX_INIT_PER_PORT; 1020 msg->hdr.nexus.targ_lun = lun->lun; 1021 msg->hdr.nexus.targ_mapped_lun = lun->lun; 1022 msg->mode.page_code = page; 1023 msg->mode.subpage = subpage; 1024 msg->mode.page_len = lun->mode_pages.index[i].page_len; 1025 memcpy(msg->mode.data, lun->mode_pages.index[i].page_data, 1026 msg->mode.page_len); 1027 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->mode, l, M_WAITOK); 1028 free(msg, M_CTL); 1029 } 1030 1031 static void 1032 ctl_isc_ha_link_up(struct ctl_softc *softc) 1033 { 1034 struct ctl_port *port; 1035 struct ctl_lun *lun; 1036 union ctl_ha_msg msg; 1037 int i; 1038 1039 /* Announce this node parameters to peer for validation. */ 1040 msg.login.msg_type = CTL_MSG_LOGIN; 1041 msg.login.version = CTL_HA_VERSION; 1042 msg.login.ha_mode = softc->ha_mode; 1043 msg.login.ha_id = softc->ha_id; 1044 msg.login.max_luns = ctl_max_luns; 1045 msg.login.max_ports = ctl_max_ports; 1046 msg.login.max_init_per_port = CTL_MAX_INIT_PER_PORT; 1047 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg.login, sizeof(msg.login), 1048 M_WAITOK); 1049 1050 STAILQ_FOREACH(port, &softc->port_list, links) { 1051 ctl_isc_announce_port(port); 1052 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1053 if (port->wwpn_iid[i].in_use) 1054 ctl_isc_announce_iid(port, i); 1055 } 1056 } 1057 STAILQ_FOREACH(lun, &softc->lun_list, links) 1058 ctl_isc_announce_lun(lun); 1059 } 1060 1061 static void 1062 ctl_isc_ha_link_down(struct ctl_softc *softc) 1063 { 1064 struct ctl_port *port; 1065 struct ctl_lun *lun; 1066 union ctl_io *io; 1067 int i; 1068 1069 mtx_lock(&softc->ctl_lock); 1070 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1071 mtx_lock(&lun->lun_lock); 1072 if (lun->flags & CTL_LUN_PEER_SC_PRIMARY) { 1073 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 1074 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 1075 } 1076 mtx_unlock(&lun->lun_lock); 1077 1078 mtx_unlock(&softc->ctl_lock); 1079 io = ctl_alloc_io(softc->othersc_pool); 1080 mtx_lock(&softc->ctl_lock); 1081 ctl_zero_io(io); 1082 io->io_hdr.msg_type = CTL_MSG_FAILOVER; 1083 io->io_hdr.nexus.targ_mapped_lun = lun->lun; 1084 ctl_enqueue_isc(io); 1085 } 1086 1087 STAILQ_FOREACH(port, &softc->port_list, links) { 1088 if (port->targ_port >= softc->port_min && 1089 port->targ_port < softc->port_max) 1090 continue; 1091 port->status &= ~CTL_PORT_STATUS_ONLINE; 1092 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1093 port->wwpn_iid[i].in_use = 0; 1094 free(port->wwpn_iid[i].name, M_CTL); 1095 port->wwpn_iid[i].name = NULL; 1096 } 1097 } 1098 mtx_unlock(&softc->ctl_lock); 1099 } 1100 1101 static void 1102 ctl_isc_ua(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1103 { 1104 struct ctl_lun *lun; 1105 uint32_t iid; 1106 1107 if (len < sizeof(msg->ua)) { 1108 printf("%s: Received truncated message %d < %zu\n", 1109 __func__, len, sizeof(msg->ua)); 1110 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1111 return; 1112 } 1113 1114 mtx_lock(&softc->ctl_lock); 1115 if (msg->hdr.nexus.targ_mapped_lun >= ctl_max_luns || 1116 (lun = softc->ctl_luns[msg->hdr.nexus.targ_mapped_lun]) == NULL) { 1117 mtx_unlock(&softc->ctl_lock); 1118 return; 1119 } 1120 mtx_lock(&lun->lun_lock); 1121 mtx_unlock(&softc->ctl_lock); 1122 if (msg->ua.ua_type == CTL_UA_THIN_PROV_THRES && msg->ua.ua_set) 1123 memcpy(lun->ua_tpt_info, msg->ua.ua_info, 8); 1124 iid = ctl_get_initindex(&msg->hdr.nexus); 1125 if (msg->ua.ua_all) { 1126 if (msg->ua.ua_set) 1127 ctl_est_ua_all(lun, iid, msg->ua.ua_type); 1128 else 1129 ctl_clr_ua_all(lun, iid, msg->ua.ua_type); 1130 } else { 1131 if (msg->ua.ua_set) 1132 ctl_est_ua(lun, iid, msg->ua.ua_type); 1133 else 1134 ctl_clr_ua(lun, iid, msg->ua.ua_type); 1135 } 1136 mtx_unlock(&lun->lun_lock); 1137 } 1138 1139 static void 1140 ctl_isc_lun_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1141 { 1142 struct ctl_lun *lun; 1143 struct ctl_ha_msg_lun_pr_key pr_key; 1144 int i, k; 1145 ctl_lun_flags oflags; 1146 uint32_t targ_lun; 1147 1148 if (len < offsetof(struct ctl_ha_msg_lun, data[0])) { 1149 printf("%s: Received truncated message %d < %zu\n", 1150 __func__, len, offsetof(struct ctl_ha_msg_lun, data[0])); 1151 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1152 return; 1153 } 1154 i = msg->lun.lun_devid_len + msg->lun.pr_key_count * sizeof(pr_key); 1155 if (len < offsetof(struct ctl_ha_msg_lun, data[i])) { 1156 printf("%s: Received truncated message data %d < %zu\n", 1157 __func__, len, offsetof(struct ctl_ha_msg_lun, data[i])); 1158 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1159 return; 1160 } 1161 1162 targ_lun = msg->hdr.nexus.targ_mapped_lun; 1163 mtx_lock(&softc->ctl_lock); 1164 if (targ_lun >= ctl_max_luns || 1165 (lun = softc->ctl_luns[targ_lun]) == NULL) { 1166 mtx_unlock(&softc->ctl_lock); 1167 return; 1168 } 1169 mtx_lock(&lun->lun_lock); 1170 mtx_unlock(&softc->ctl_lock); 1171 if (lun->flags & CTL_LUN_DISABLED) { 1172 mtx_unlock(&lun->lun_lock); 1173 return; 1174 } 1175 i = (lun->lun_devid != NULL) ? lun->lun_devid->len : 0; 1176 if (msg->lun.lun_devid_len != i || (i > 0 && 1177 memcmp(&msg->lun.data[0], lun->lun_devid->data, i) != 0)) { 1178 mtx_unlock(&lun->lun_lock); 1179 printf("%s: Received conflicting HA LUN %d\n", 1180 __func__, targ_lun); 1181 return; 1182 } else { 1183 /* Record whether peer is primary. */ 1184 oflags = lun->flags; 1185 if ((msg->lun.flags & CTL_LUN_PRIMARY_SC) && 1186 (msg->lun.flags & CTL_LUN_DISABLED) == 0) 1187 lun->flags |= CTL_LUN_PEER_SC_PRIMARY; 1188 else 1189 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 1190 if (oflags != lun->flags) 1191 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 1192 1193 /* If peer is primary and we are not -- use data */ 1194 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 1195 (lun->flags & CTL_LUN_PEER_SC_PRIMARY)) { 1196 lun->pr_generation = msg->lun.pr_generation; 1197 lun->pr_res_idx = msg->lun.pr_res_idx; 1198 lun->pr_res_type = msg->lun.pr_res_type; 1199 lun->pr_key_count = msg->lun.pr_key_count; 1200 for (k = 0; k < CTL_MAX_INITIATORS; k++) 1201 ctl_clr_prkey(lun, k); 1202 for (k = 0; k < msg->lun.pr_key_count; k++) { 1203 memcpy(&pr_key, &msg->lun.data[i], 1204 sizeof(pr_key)); 1205 ctl_alloc_prkey(lun, pr_key.pr_iid); 1206 ctl_set_prkey(lun, pr_key.pr_iid, 1207 pr_key.pr_key); 1208 i += sizeof(pr_key); 1209 } 1210 } 1211 1212 mtx_unlock(&lun->lun_lock); 1213 CTL_DEBUG_PRINT(("%s: Known LUN %d, peer is %s\n", 1214 __func__, targ_lun, 1215 (msg->lun.flags & CTL_LUN_PRIMARY_SC) ? 1216 "primary" : "secondary")); 1217 1218 /* If we are primary but peer doesn't know -- notify */ 1219 if ((lun->flags & CTL_LUN_PRIMARY_SC) && 1220 (msg->lun.flags & CTL_LUN_PEER_SC_PRIMARY) == 0) 1221 ctl_isc_announce_lun(lun); 1222 } 1223 } 1224 1225 static void 1226 ctl_isc_port_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1227 { 1228 struct ctl_port *port; 1229 struct ctl_lun *lun; 1230 int i, new; 1231 1232 if (len < offsetof(struct ctl_ha_msg_port, data[0])) { 1233 printf("%s: Received truncated message %d < %zu\n", 1234 __func__, len, offsetof(struct ctl_ha_msg_port, data[0])); 1235 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1236 return; 1237 } 1238 i = msg->port.name_len + msg->port.lun_map_len + 1239 msg->port.port_devid_len + msg->port.target_devid_len + 1240 msg->port.init_devid_len; 1241 if (len < offsetof(struct ctl_ha_msg_port, data[i])) { 1242 printf("%s: Received truncated message data %d < %zu\n", 1243 __func__, len, offsetof(struct ctl_ha_msg_port, data[i])); 1244 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1245 return; 1246 } 1247 1248 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 1249 if (port == NULL) { 1250 CTL_DEBUG_PRINT(("%s: New port %d\n", __func__, 1251 msg->hdr.nexus.targ_port)); 1252 new = 1; 1253 port = malloc(sizeof(*port), M_CTL, M_WAITOK | M_ZERO); 1254 port->frontend = &ha_frontend; 1255 port->targ_port = msg->hdr.nexus.targ_port; 1256 port->fe_datamove = ctl_ha_datamove; 1257 port->fe_done = ctl_ha_done; 1258 } else if (port->frontend == &ha_frontend) { 1259 CTL_DEBUG_PRINT(("%s: Updated port %d\n", __func__, 1260 msg->hdr.nexus.targ_port)); 1261 new = 0; 1262 } else { 1263 printf("%s: Received conflicting HA port %d\n", 1264 __func__, msg->hdr.nexus.targ_port); 1265 return; 1266 } 1267 port->port_type = msg->port.port_type; 1268 port->physical_port = msg->port.physical_port; 1269 port->virtual_port = msg->port.virtual_port; 1270 port->status = msg->port.status; 1271 i = 0; 1272 free(port->port_name, M_CTL); 1273 port->port_name = strndup(&msg->port.data[i], msg->port.name_len, 1274 M_CTL); 1275 i += msg->port.name_len; 1276 if (msg->port.lun_map_len != 0) { 1277 if (port->lun_map == NULL || 1278 port->lun_map_size * sizeof(uint32_t) < 1279 msg->port.lun_map_len) { 1280 port->lun_map_size = 0; 1281 free(port->lun_map, M_CTL); 1282 port->lun_map = malloc(msg->port.lun_map_len, 1283 M_CTL, M_WAITOK); 1284 } 1285 memcpy(port->lun_map, &msg->port.data[i], msg->port.lun_map_len); 1286 port->lun_map_size = msg->port.lun_map_len / sizeof(uint32_t); 1287 i += msg->port.lun_map_len; 1288 } else { 1289 port->lun_map_size = 0; 1290 free(port->lun_map, M_CTL); 1291 port->lun_map = NULL; 1292 } 1293 if (msg->port.port_devid_len != 0) { 1294 if (port->port_devid == NULL || 1295 port->port_devid->len < msg->port.port_devid_len) { 1296 free(port->port_devid, M_CTL); 1297 port->port_devid = malloc(sizeof(struct ctl_devid) + 1298 msg->port.port_devid_len, M_CTL, M_WAITOK); 1299 } 1300 memcpy(port->port_devid->data, &msg->port.data[i], 1301 msg->port.port_devid_len); 1302 port->port_devid->len = msg->port.port_devid_len; 1303 i += msg->port.port_devid_len; 1304 } else { 1305 free(port->port_devid, M_CTL); 1306 port->port_devid = NULL; 1307 } 1308 if (msg->port.target_devid_len != 0) { 1309 if (port->target_devid == NULL || 1310 port->target_devid->len < msg->port.target_devid_len) { 1311 free(port->target_devid, M_CTL); 1312 port->target_devid = malloc(sizeof(struct ctl_devid) + 1313 msg->port.target_devid_len, M_CTL, M_WAITOK); 1314 } 1315 memcpy(port->target_devid->data, &msg->port.data[i], 1316 msg->port.target_devid_len); 1317 port->target_devid->len = msg->port.target_devid_len; 1318 i += msg->port.target_devid_len; 1319 } else { 1320 free(port->target_devid, M_CTL); 1321 port->target_devid = NULL; 1322 } 1323 if (msg->port.init_devid_len != 0) { 1324 if (port->init_devid == NULL || 1325 port->init_devid->len < msg->port.init_devid_len) { 1326 free(port->init_devid, M_CTL); 1327 port->init_devid = malloc(sizeof(struct ctl_devid) + 1328 msg->port.init_devid_len, M_CTL, M_WAITOK); 1329 } 1330 memcpy(port->init_devid->data, &msg->port.data[i], 1331 msg->port.init_devid_len); 1332 port->init_devid->len = msg->port.init_devid_len; 1333 i += msg->port.init_devid_len; 1334 } else { 1335 free(port->init_devid, M_CTL); 1336 port->init_devid = NULL; 1337 } 1338 if (new) { 1339 if (ctl_port_register(port) != 0) { 1340 printf("%s: ctl_port_register() failed with error\n", 1341 __func__); 1342 } 1343 } 1344 mtx_lock(&softc->ctl_lock); 1345 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1346 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 1347 continue; 1348 mtx_lock(&lun->lun_lock); 1349 ctl_est_ua_all(lun, -1, CTL_UA_INQ_CHANGE); 1350 mtx_unlock(&lun->lun_lock); 1351 } 1352 mtx_unlock(&softc->ctl_lock); 1353 } 1354 1355 static void 1356 ctl_isc_iid_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1357 { 1358 struct ctl_port *port; 1359 int i, iid; 1360 1361 if (len < offsetof(struct ctl_ha_msg_iid, data[0])) { 1362 printf("%s: Received truncated message %d < %zu\n", 1363 __func__, len, offsetof(struct ctl_ha_msg_iid, data[0])); 1364 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1365 return; 1366 } 1367 i = msg->iid.name_len; 1368 if (len < offsetof(struct ctl_ha_msg_iid, data[i])) { 1369 printf("%s: Received truncated message data %d < %zu\n", 1370 __func__, len, offsetof(struct ctl_ha_msg_iid, data[i])); 1371 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1372 return; 1373 } 1374 1375 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 1376 if (port == NULL) { 1377 printf("%s: Received IID for unknown port %d\n", 1378 __func__, msg->hdr.nexus.targ_port); 1379 return; 1380 } 1381 iid = msg->hdr.nexus.initid; 1382 if (port->wwpn_iid[iid].in_use != 0 && 1383 msg->iid.in_use == 0) 1384 ctl_i_t_nexus_loss(softc, iid, CTL_UA_POWERON); 1385 port->wwpn_iid[iid].in_use = msg->iid.in_use; 1386 port->wwpn_iid[iid].wwpn = msg->iid.wwpn; 1387 free(port->wwpn_iid[iid].name, M_CTL); 1388 if (msg->iid.name_len) { 1389 port->wwpn_iid[iid].name = strndup(&msg->iid.data[0], 1390 msg->iid.name_len, M_CTL); 1391 } else 1392 port->wwpn_iid[iid].name = NULL; 1393 } 1394 1395 static void 1396 ctl_isc_login(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1397 { 1398 1399 if (len < sizeof(msg->login)) { 1400 printf("%s: Received truncated message %d < %zu\n", 1401 __func__, len, sizeof(msg->login)); 1402 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1403 return; 1404 } 1405 1406 if (msg->login.version != CTL_HA_VERSION) { 1407 printf("CTL HA peers have different versions %d != %d\n", 1408 msg->login.version, CTL_HA_VERSION); 1409 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1410 return; 1411 } 1412 if (msg->login.ha_mode != softc->ha_mode) { 1413 printf("CTL HA peers have different ha_mode %d != %d\n", 1414 msg->login.ha_mode, softc->ha_mode); 1415 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1416 return; 1417 } 1418 if (msg->login.ha_id == softc->ha_id) { 1419 printf("CTL HA peers have same ha_id %d\n", msg->login.ha_id); 1420 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1421 return; 1422 } 1423 if (msg->login.max_luns != ctl_max_luns || 1424 msg->login.max_ports != ctl_max_ports || 1425 msg->login.max_init_per_port != CTL_MAX_INIT_PER_PORT) { 1426 printf("CTL HA peers have different limits\n"); 1427 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1428 return; 1429 } 1430 } 1431 1432 static void 1433 ctl_isc_mode_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1434 { 1435 struct ctl_lun *lun; 1436 u_int i; 1437 uint32_t initidx, targ_lun; 1438 1439 if (len < offsetof(struct ctl_ha_msg_mode, data[0])) { 1440 printf("%s: Received truncated message %d < %zu\n", 1441 __func__, len, offsetof(struct ctl_ha_msg_mode, data[0])); 1442 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1443 return; 1444 } 1445 i = msg->mode.page_len; 1446 if (len < offsetof(struct ctl_ha_msg_mode, data[i])) { 1447 printf("%s: Received truncated message data %d < %zu\n", 1448 __func__, len, offsetof(struct ctl_ha_msg_mode, data[i])); 1449 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1450 return; 1451 } 1452 1453 targ_lun = msg->hdr.nexus.targ_mapped_lun; 1454 mtx_lock(&softc->ctl_lock); 1455 if (targ_lun >= ctl_max_luns || 1456 (lun = softc->ctl_luns[targ_lun]) == NULL) { 1457 mtx_unlock(&softc->ctl_lock); 1458 return; 1459 } 1460 mtx_lock(&lun->lun_lock); 1461 mtx_unlock(&softc->ctl_lock); 1462 if (lun->flags & CTL_LUN_DISABLED) { 1463 mtx_unlock(&lun->lun_lock); 1464 return; 1465 } 1466 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 1467 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) == 1468 msg->mode.page_code && 1469 lun->mode_pages.index[i].subpage == msg->mode.subpage) 1470 break; 1471 } 1472 if (i == CTL_NUM_MODE_PAGES) { 1473 mtx_unlock(&lun->lun_lock); 1474 return; 1475 } 1476 memcpy(lun->mode_pages.index[i].page_data, msg->mode.data, 1477 min(lun->mode_pages.index[i].page_len, msg->mode.page_len)); 1478 initidx = ctl_get_initindex(&msg->hdr.nexus); 1479 if (initidx != -1) 1480 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 1481 mtx_unlock(&lun->lun_lock); 1482 } 1483 1484 /* 1485 * ISC (Inter Shelf Communication) event handler. Events from the HA 1486 * subsystem come in here. 1487 */ 1488 static void 1489 ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 1490 { 1491 struct ctl_softc *softc = control_softc; 1492 union ctl_io *io; 1493 struct ctl_prio *presio; 1494 ctl_ha_status isc_status; 1495 1496 CTL_DEBUG_PRINT(("CTL: Isc Msg event %d\n", event)); 1497 if (event == CTL_HA_EVT_MSG_RECV) { 1498 union ctl_ha_msg *msg, msgbuf; 1499 1500 if (param > sizeof(msgbuf)) 1501 msg = malloc(param, M_CTL, M_WAITOK); 1502 else 1503 msg = &msgbuf; 1504 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, msg, param, 1505 M_WAITOK); 1506 if (isc_status != CTL_HA_STATUS_SUCCESS) { 1507 printf("%s: Error receiving message: %d\n", 1508 __func__, isc_status); 1509 if (msg != &msgbuf) 1510 free(msg, M_CTL); 1511 return; 1512 } 1513 1514 CTL_DEBUG_PRINT(("CTL: msg_type %d len %d\n", 1515 msg->hdr.msg_type, param)); 1516 switch (msg->hdr.msg_type) { 1517 case CTL_MSG_SERIALIZE: 1518 io = ctl_alloc_io(softc->othersc_pool); 1519 ctl_zero_io(io); 1520 // populate ctsio from msg 1521 io->io_hdr.io_type = CTL_IO_SCSI; 1522 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 1523 io->io_hdr.remote_io = msg->hdr.original_sc; 1524 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 1525 CTL_FLAG_IO_ACTIVE; 1526 /* 1527 * If we're in serialization-only mode, we don't 1528 * want to go through full done processing. Thus 1529 * the COPY flag. 1530 * 1531 * XXX KDM add another flag that is more specific. 1532 */ 1533 if (softc->ha_mode != CTL_HA_MODE_XFER) 1534 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 1535 io->io_hdr.nexus = msg->hdr.nexus; 1536 io->scsiio.priority = msg->scsi.priority; 1537 io->scsiio.tag_num = msg->scsi.tag_num; 1538 io->scsiio.tag_type = msg->scsi.tag_type; 1539 #ifdef CTL_TIME_IO 1540 io->io_hdr.start_time = time_uptime; 1541 getbinuptime(&io->io_hdr.start_bt); 1542 #endif /* CTL_TIME_IO */ 1543 io->scsiio.cdb_len = msg->scsi.cdb_len; 1544 memcpy(io->scsiio.cdb, msg->scsi.cdb, 1545 CTL_MAX_CDBLEN); 1546 if (softc->ha_mode == CTL_HA_MODE_XFER) { 1547 const struct ctl_cmd_entry *entry; 1548 1549 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 1550 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 1551 io->io_hdr.flags |= 1552 entry->flags & CTL_FLAG_DATA_MASK; 1553 } 1554 ctl_enqueue_isc(io); 1555 break; 1556 1557 /* Performed on the Originating SC, XFER mode only */ 1558 case CTL_MSG_DATAMOVE: { 1559 struct ctl_sg_entry *sgl; 1560 int i, j; 1561 1562 io = msg->hdr.original_sc; 1563 if (io == NULL) { 1564 printf("%s: original_sc == NULL!\n", __func__); 1565 /* XXX KDM do something here */ 1566 break; 1567 } 1568 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 1569 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1570 /* 1571 * Keep track of this, we need to send it back over 1572 * when the datamove is complete. 1573 */ 1574 io->io_hdr.remote_io = msg->hdr.serializing_sc; 1575 if (msg->hdr.status == CTL_SUCCESS) 1576 io->io_hdr.status = msg->hdr.status; 1577 1578 if (msg->dt.sg_sequence == 0) { 1579 #ifdef CTL_TIME_IO 1580 getbinuptime(&io->io_hdr.dma_start_bt); 1581 #endif 1582 i = msg->dt.kern_sg_entries + 1583 msg->dt.kern_data_len / 1584 CTL_HA_DATAMOVE_SEGMENT + 1; 1585 sgl = malloc(sizeof(*sgl) * i, M_CTL, 1586 M_WAITOK | M_ZERO); 1587 CTL_RSGL(io) = sgl; 1588 CTL_LSGL(io) = &sgl[msg->dt.kern_sg_entries]; 1589 1590 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 1591 1592 io->scsiio.kern_sg_entries = 1593 msg->dt.kern_sg_entries; 1594 io->scsiio.rem_sg_entries = 1595 msg->dt.kern_sg_entries; 1596 io->scsiio.kern_data_len = 1597 msg->dt.kern_data_len; 1598 io->scsiio.kern_total_len = 1599 msg->dt.kern_total_len; 1600 io->scsiio.kern_data_resid = 1601 msg->dt.kern_data_resid; 1602 io->scsiio.kern_rel_offset = 1603 msg->dt.kern_rel_offset; 1604 io->io_hdr.flags &= ~CTL_FLAG_BUS_ADDR; 1605 io->io_hdr.flags |= msg->dt.flags & 1606 CTL_FLAG_BUS_ADDR; 1607 } else 1608 sgl = (struct ctl_sg_entry *) 1609 io->scsiio.kern_data_ptr; 1610 1611 for (i = msg->dt.sent_sg_entries, j = 0; 1612 i < (msg->dt.sent_sg_entries + 1613 msg->dt.cur_sg_entries); i++, j++) { 1614 sgl[i].addr = msg->dt.sg_list[j].addr; 1615 sgl[i].len = msg->dt.sg_list[j].len; 1616 } 1617 1618 /* 1619 * If this is the last piece of the I/O, we've got 1620 * the full S/G list. Queue processing in the thread. 1621 * Otherwise wait for the next piece. 1622 */ 1623 if (msg->dt.sg_last != 0) 1624 ctl_enqueue_isc(io); 1625 break; 1626 } 1627 /* Performed on the Serializing (primary) SC, XFER mode only */ 1628 case CTL_MSG_DATAMOVE_DONE: { 1629 if (msg->hdr.serializing_sc == NULL) { 1630 printf("%s: serializing_sc == NULL!\n", 1631 __func__); 1632 /* XXX KDM now what? */ 1633 break; 1634 } 1635 /* 1636 * We grab the sense information here in case 1637 * there was a failure, so we can return status 1638 * back to the initiator. 1639 */ 1640 io = msg->hdr.serializing_sc; 1641 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 1642 io->io_hdr.flags &= ~CTL_FLAG_DMA_INPROG; 1643 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1644 io->io_hdr.port_status = msg->scsi.port_status; 1645 io->scsiio.kern_data_resid = msg->scsi.kern_data_resid; 1646 if (msg->hdr.status != CTL_STATUS_NONE) { 1647 io->io_hdr.status = msg->hdr.status; 1648 io->scsiio.scsi_status = msg->scsi.scsi_status; 1649 io->scsiio.sense_len = msg->scsi.sense_len; 1650 memcpy(&io->scsiio.sense_data, 1651 &msg->scsi.sense_data, 1652 msg->scsi.sense_len); 1653 if (msg->hdr.status == CTL_SUCCESS) 1654 io->io_hdr.flags |= CTL_FLAG_STATUS_SENT; 1655 } 1656 ctl_enqueue_isc(io); 1657 break; 1658 } 1659 1660 /* Preformed on Originating SC, SER_ONLY mode */ 1661 case CTL_MSG_R2R: 1662 io = msg->hdr.original_sc; 1663 if (io == NULL) { 1664 printf("%s: original_sc == NULL!\n", 1665 __func__); 1666 break; 1667 } 1668 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1669 io->io_hdr.msg_type = CTL_MSG_R2R; 1670 io->io_hdr.remote_io = msg->hdr.serializing_sc; 1671 ctl_enqueue_isc(io); 1672 break; 1673 1674 /* 1675 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 1676 * mode. 1677 * Performed on the Originating (i.e. secondary) SC in XFER 1678 * mode 1679 */ 1680 case CTL_MSG_FINISH_IO: 1681 if (softc->ha_mode == CTL_HA_MODE_XFER) 1682 ctl_isc_handler_finish_xfer(softc, msg); 1683 else 1684 ctl_isc_handler_finish_ser_only(softc, msg); 1685 break; 1686 1687 /* Preformed on Originating SC */ 1688 case CTL_MSG_BAD_JUJU: 1689 io = msg->hdr.original_sc; 1690 if (io == NULL) { 1691 printf("%s: Bad JUJU!, original_sc is NULL!\n", 1692 __func__); 1693 break; 1694 } 1695 ctl_copy_sense_data(msg, io); 1696 /* 1697 * IO should have already been cleaned up on other 1698 * SC so clear this flag so we won't send a message 1699 * back to finish the IO there. 1700 */ 1701 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 1702 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1703 1704 /* io = msg->hdr.serializing_sc; */ 1705 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 1706 ctl_enqueue_isc(io); 1707 break; 1708 1709 /* Handle resets sent from the other side */ 1710 case CTL_MSG_MANAGE_TASKS: { 1711 struct ctl_taskio *taskio; 1712 taskio = (struct ctl_taskio *)ctl_alloc_io( 1713 softc->othersc_pool); 1714 ctl_zero_io((union ctl_io *)taskio); 1715 taskio->io_hdr.io_type = CTL_IO_TASK; 1716 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1717 taskio->io_hdr.nexus = msg->hdr.nexus; 1718 taskio->task_action = msg->task.task_action; 1719 taskio->tag_num = msg->task.tag_num; 1720 taskio->tag_type = msg->task.tag_type; 1721 #ifdef CTL_TIME_IO 1722 taskio->io_hdr.start_time = time_uptime; 1723 getbinuptime(&taskio->io_hdr.start_bt); 1724 #endif /* CTL_TIME_IO */ 1725 ctl_run_task((union ctl_io *)taskio); 1726 break; 1727 } 1728 /* Persistent Reserve action which needs attention */ 1729 case CTL_MSG_PERS_ACTION: 1730 presio = (struct ctl_prio *)ctl_alloc_io( 1731 softc->othersc_pool); 1732 ctl_zero_io((union ctl_io *)presio); 1733 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 1734 presio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1735 presio->io_hdr.nexus = msg->hdr.nexus; 1736 presio->pr_msg = msg->pr; 1737 ctl_enqueue_isc((union ctl_io *)presio); 1738 break; 1739 case CTL_MSG_UA: 1740 ctl_isc_ua(softc, msg, param); 1741 break; 1742 case CTL_MSG_PORT_SYNC: 1743 ctl_isc_port_sync(softc, msg, param); 1744 break; 1745 case CTL_MSG_LUN_SYNC: 1746 ctl_isc_lun_sync(softc, msg, param); 1747 break; 1748 case CTL_MSG_IID_SYNC: 1749 ctl_isc_iid_sync(softc, msg, param); 1750 break; 1751 case CTL_MSG_LOGIN: 1752 ctl_isc_login(softc, msg, param); 1753 break; 1754 case CTL_MSG_MODE_SYNC: 1755 ctl_isc_mode_sync(softc, msg, param); 1756 break; 1757 default: 1758 printf("Received HA message of unknown type %d\n", 1759 msg->hdr.msg_type); 1760 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1761 break; 1762 } 1763 if (msg != &msgbuf) 1764 free(msg, M_CTL); 1765 } else if (event == CTL_HA_EVT_LINK_CHANGE) { 1766 printf("CTL: HA link status changed from %d to %d\n", 1767 softc->ha_link, param); 1768 if (param == softc->ha_link) 1769 return; 1770 if (softc->ha_link == CTL_HA_LINK_ONLINE) { 1771 softc->ha_link = param; 1772 ctl_isc_ha_link_down(softc); 1773 } else { 1774 softc->ha_link = param; 1775 if (softc->ha_link == CTL_HA_LINK_ONLINE) 1776 ctl_isc_ha_link_up(softc); 1777 } 1778 return; 1779 } else { 1780 printf("ctl_isc_event_handler: Unknown event %d\n", event); 1781 return; 1782 } 1783 } 1784 1785 static void 1786 ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 1787 { 1788 1789 memcpy(&dest->scsiio.sense_data, &src->scsi.sense_data, 1790 src->scsi.sense_len); 1791 dest->scsiio.scsi_status = src->scsi.scsi_status; 1792 dest->scsiio.sense_len = src->scsi.sense_len; 1793 dest->io_hdr.status = src->hdr.status; 1794 } 1795 1796 static void 1797 ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest) 1798 { 1799 1800 memcpy(&dest->scsi.sense_data, &src->scsiio.sense_data, 1801 src->scsiio.sense_len); 1802 dest->scsi.scsi_status = src->scsiio.scsi_status; 1803 dest->scsi.sense_len = src->scsiio.sense_len; 1804 dest->hdr.status = src->io_hdr.status; 1805 } 1806 1807 void 1808 ctl_est_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1809 { 1810 struct ctl_softc *softc = lun->ctl_softc; 1811 ctl_ua_type *pu; 1812 1813 if (initidx < softc->init_min || initidx >= softc->init_max) 1814 return; 1815 mtx_assert(&lun->lun_lock, MA_OWNED); 1816 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1817 if (pu == NULL) 1818 return; 1819 pu[initidx % CTL_MAX_INIT_PER_PORT] |= ua; 1820 } 1821 1822 void 1823 ctl_est_ua_port(struct ctl_lun *lun, int port, uint32_t except, ctl_ua_type ua) 1824 { 1825 int i; 1826 1827 mtx_assert(&lun->lun_lock, MA_OWNED); 1828 if (lun->pending_ua[port] == NULL) 1829 return; 1830 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1831 if (port * CTL_MAX_INIT_PER_PORT + i == except) 1832 continue; 1833 lun->pending_ua[port][i] |= ua; 1834 } 1835 } 1836 1837 void 1838 ctl_est_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1839 { 1840 struct ctl_softc *softc = lun->ctl_softc; 1841 int i; 1842 1843 mtx_assert(&lun->lun_lock, MA_OWNED); 1844 for (i = softc->port_min; i < softc->port_max; i++) 1845 ctl_est_ua_port(lun, i, except, ua); 1846 } 1847 1848 void 1849 ctl_clr_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1850 { 1851 struct ctl_softc *softc = lun->ctl_softc; 1852 ctl_ua_type *pu; 1853 1854 if (initidx < softc->init_min || initidx >= softc->init_max) 1855 return; 1856 mtx_assert(&lun->lun_lock, MA_OWNED); 1857 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1858 if (pu == NULL) 1859 return; 1860 pu[initidx % CTL_MAX_INIT_PER_PORT] &= ~ua; 1861 } 1862 1863 void 1864 ctl_clr_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1865 { 1866 struct ctl_softc *softc = lun->ctl_softc; 1867 int i, j; 1868 1869 mtx_assert(&lun->lun_lock, MA_OWNED); 1870 for (i = softc->port_min; i < softc->port_max; i++) { 1871 if (lun->pending_ua[i] == NULL) 1872 continue; 1873 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 1874 if (i * CTL_MAX_INIT_PER_PORT + j == except) 1875 continue; 1876 lun->pending_ua[i][j] &= ~ua; 1877 } 1878 } 1879 } 1880 1881 void 1882 ctl_clr_ua_allluns(struct ctl_softc *ctl_softc, uint32_t initidx, 1883 ctl_ua_type ua_type) 1884 { 1885 struct ctl_lun *lun; 1886 1887 mtx_assert(&ctl_softc->ctl_lock, MA_OWNED); 1888 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) { 1889 mtx_lock(&lun->lun_lock); 1890 ctl_clr_ua(lun, initidx, ua_type); 1891 mtx_unlock(&lun->lun_lock); 1892 } 1893 } 1894 1895 static int 1896 ctl_ha_role_sysctl(SYSCTL_HANDLER_ARGS) 1897 { 1898 struct ctl_softc *softc = (struct ctl_softc *)arg1; 1899 struct ctl_lun *lun; 1900 struct ctl_lun_req ireq; 1901 int error, value; 1902 1903 value = (softc->flags & CTL_FLAG_ACTIVE_SHELF) ? 0 : 1; 1904 error = sysctl_handle_int(oidp, &value, 0, req); 1905 if ((error != 0) || (req->newptr == NULL)) 1906 return (error); 1907 1908 mtx_lock(&softc->ctl_lock); 1909 if (value == 0) 1910 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1911 else 1912 softc->flags &= ~CTL_FLAG_ACTIVE_SHELF; 1913 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1914 mtx_unlock(&softc->ctl_lock); 1915 bzero(&ireq, sizeof(ireq)); 1916 ireq.reqtype = CTL_LUNREQ_MODIFY; 1917 ireq.reqdata.modify.lun_id = lun->lun; 1918 lun->backend->ioctl(NULL, CTL_LUN_REQ, (caddr_t)&ireq, 0, 1919 curthread); 1920 if (ireq.status != CTL_LUN_OK) { 1921 printf("%s: CTL_LUNREQ_MODIFY returned %d '%s'\n", 1922 __func__, ireq.status, ireq.error_str); 1923 } 1924 mtx_lock(&softc->ctl_lock); 1925 } 1926 mtx_unlock(&softc->ctl_lock); 1927 return (0); 1928 } 1929 1930 static int 1931 ctl_init(void) 1932 { 1933 struct make_dev_args args; 1934 struct ctl_softc *softc; 1935 int i, error; 1936 1937 softc = control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 1938 M_WAITOK | M_ZERO); 1939 1940 make_dev_args_init(&args); 1941 args.mda_devsw = &ctl_cdevsw; 1942 args.mda_uid = UID_ROOT; 1943 args.mda_gid = GID_OPERATOR; 1944 args.mda_mode = 0600; 1945 args.mda_si_drv1 = softc; 1946 args.mda_si_drv2 = NULL; 1947 error = make_dev_s(&args, &softc->dev, "cam/ctl"); 1948 if (error != 0) { 1949 free(softc, M_DEVBUF); 1950 control_softc = NULL; 1951 return (error); 1952 } 1953 1954 sysctl_ctx_init(&softc->sysctl_ctx); 1955 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1956 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 1957 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "CAM Target Layer"); 1958 1959 if (softc->sysctl_tree == NULL) { 1960 printf("%s: unable to allocate sysctl tree\n", __func__); 1961 destroy_dev(softc->dev); 1962 free(softc, M_DEVBUF); 1963 control_softc = NULL; 1964 return (ENOMEM); 1965 } 1966 1967 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 1968 softc->io_zone = uma_zcreate("CTL IO", sizeof(union ctl_io), 1969 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); 1970 softc->flags = 0; 1971 1972 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1973 OID_AUTO, "ha_mode", CTLFLAG_RDTUN, (int *)&softc->ha_mode, 0, 1974 "HA mode (0 - act/stby, 1 - serialize only, 2 - xfer)"); 1975 1976 if (ctl_max_luns <= 0 || powerof2(ctl_max_luns) == 0) { 1977 printf("Bad value %d for kern.cam.ctl.max_luns, must be a power of two, using %d\n", 1978 ctl_max_luns, CTL_DEFAULT_MAX_LUNS); 1979 ctl_max_luns = CTL_DEFAULT_MAX_LUNS; 1980 } 1981 softc->ctl_luns = malloc(sizeof(struct ctl_lun *) * ctl_max_luns, 1982 M_DEVBUF, M_WAITOK | M_ZERO); 1983 softc->ctl_lun_mask = malloc(sizeof(uint32_t) * 1984 ((ctl_max_luns + 31) / 32), M_DEVBUF, M_WAITOK | M_ZERO); 1985 if (ctl_max_ports <= 0 || powerof2(ctl_max_ports) == 0) { 1986 printf("Bad value %d for kern.cam.ctl.max_ports, must be a power of two, using %d\n", 1987 ctl_max_ports, CTL_DEFAULT_MAX_PORTS); 1988 ctl_max_ports = CTL_DEFAULT_MAX_PORTS; 1989 } 1990 softc->ctl_port_mask = malloc(sizeof(uint32_t) * 1991 ((ctl_max_ports + 31) / 32), M_DEVBUF, M_WAITOK | M_ZERO); 1992 softc->ctl_ports = malloc(sizeof(struct ctl_port *) * ctl_max_ports, 1993 M_DEVBUF, M_WAITOK | M_ZERO); 1994 1995 /* 1996 * In Copan's HA scheme, the "master" and "slave" roles are 1997 * figured out through the slot the controller is in. Although it 1998 * is an active/active system, someone has to be in charge. 1999 */ 2000 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 2001 OID_AUTO, "ha_id", CTLFLAG_RDTUN, &softc->ha_id, 0, 2002 "HA head ID (0 - no HA)"); 2003 if (softc->ha_id == 0 || softc->ha_id > NUM_HA_SHELVES) { 2004 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 2005 softc->is_single = 1; 2006 softc->port_cnt = ctl_max_ports; 2007 softc->port_min = 0; 2008 } else { 2009 softc->port_cnt = ctl_max_ports / NUM_HA_SHELVES; 2010 softc->port_min = (softc->ha_id - 1) * softc->port_cnt; 2011 } 2012 softc->port_max = softc->port_min + softc->port_cnt; 2013 softc->init_min = softc->port_min * CTL_MAX_INIT_PER_PORT; 2014 softc->init_max = softc->port_max * CTL_MAX_INIT_PER_PORT; 2015 2016 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 2017 OID_AUTO, "ha_link", CTLFLAG_RD, (int *)&softc->ha_link, 0, 2018 "HA link state (0 - offline, 1 - unknown, 2 - online)"); 2019 2020 STAILQ_INIT(&softc->lun_list); 2021 STAILQ_INIT(&softc->fe_list); 2022 STAILQ_INIT(&softc->port_list); 2023 STAILQ_INIT(&softc->be_list); 2024 ctl_tpc_init(softc); 2025 2026 if (worker_threads <= 0) 2027 worker_threads = max(1, mp_ncpus / 4); 2028 if (worker_threads > CTL_MAX_THREADS) 2029 worker_threads = CTL_MAX_THREADS; 2030 2031 for (i = 0; i < worker_threads; i++) { 2032 struct ctl_thread *thr = &softc->threads[i]; 2033 2034 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 2035 thr->ctl_softc = softc; 2036 STAILQ_INIT(&thr->incoming_queue); 2037 STAILQ_INIT(&thr->rtr_queue); 2038 STAILQ_INIT(&thr->done_queue); 2039 STAILQ_INIT(&thr->isc_queue); 2040 2041 error = kproc_kthread_add(ctl_work_thread, thr, 2042 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 2043 if (error != 0) { 2044 printf("error creating CTL work thread!\n"); 2045 return (error); 2046 } 2047 } 2048 error = kproc_kthread_add(ctl_thresh_thread, softc, 2049 &softc->ctl_proc, &softc->thresh_thread, 0, 0, "ctl", "thresh"); 2050 if (error != 0) { 2051 printf("error creating CTL threshold thread!\n"); 2052 return (error); 2053 } 2054 2055 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 2056 OID_AUTO, "ha_role", 2057 CTLTYPE_INT | CTLFLAG_RWTUN | CTLFLAG_MPSAFE, 2058 softc, 0, ctl_ha_role_sysctl, "I", "HA role for this head"); 2059 2060 if (softc->is_single == 0) { 2061 if (ctl_frontend_register(&ha_frontend) != 0) 2062 softc->is_single = 1; 2063 } 2064 return (0); 2065 } 2066 2067 static int 2068 ctl_shutdown(void) 2069 { 2070 struct ctl_softc *softc = control_softc; 2071 int i; 2072 2073 if (softc->is_single == 0) 2074 ctl_frontend_deregister(&ha_frontend); 2075 2076 destroy_dev(softc->dev); 2077 2078 /* Shutdown CTL threads. */ 2079 softc->shutdown = 1; 2080 for (i = 0; i < worker_threads; i++) { 2081 struct ctl_thread *thr = &softc->threads[i]; 2082 while (thr->thread != NULL) { 2083 wakeup(thr); 2084 if (thr->thread != NULL) 2085 pause("CTL thr shutdown", 1); 2086 } 2087 mtx_destroy(&thr->queue_lock); 2088 } 2089 while (softc->thresh_thread != NULL) { 2090 wakeup(softc->thresh_thread); 2091 if (softc->thresh_thread != NULL) 2092 pause("CTL thr shutdown", 1); 2093 } 2094 2095 ctl_tpc_shutdown(softc); 2096 uma_zdestroy(softc->io_zone); 2097 mtx_destroy(&softc->ctl_lock); 2098 2099 free(softc->ctl_luns, M_DEVBUF); 2100 free(softc->ctl_lun_mask, M_DEVBUF); 2101 free(softc->ctl_port_mask, M_DEVBUF); 2102 free(softc->ctl_ports, M_DEVBUF); 2103 2104 sysctl_ctx_free(&softc->sysctl_ctx); 2105 2106 free(softc, M_DEVBUF); 2107 control_softc = NULL; 2108 return (0); 2109 } 2110 2111 static int 2112 ctl_module_event_handler(module_t mod, int what, void *arg) 2113 { 2114 2115 switch (what) { 2116 case MOD_LOAD: 2117 return (ctl_init()); 2118 case MOD_UNLOAD: 2119 return (ctl_shutdown()); 2120 default: 2121 return (EOPNOTSUPP); 2122 } 2123 } 2124 2125 /* 2126 * XXX KDM should we do some access checks here? Bump a reference count to 2127 * prevent a CTL module from being unloaded while someone has it open? 2128 */ 2129 static int 2130 ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 2131 { 2132 return (0); 2133 } 2134 2135 static int 2136 ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 2137 { 2138 return (0); 2139 } 2140 2141 /* 2142 * Remove an initiator by port number and initiator ID. 2143 * Returns 0 for success, -1 for failure. 2144 */ 2145 int 2146 ctl_remove_initiator(struct ctl_port *port, int iid) 2147 { 2148 struct ctl_softc *softc = port->ctl_softc; 2149 int last; 2150 2151 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 2152 2153 if (iid > CTL_MAX_INIT_PER_PORT) { 2154 printf("%s: initiator ID %u > maximun %u!\n", 2155 __func__, iid, CTL_MAX_INIT_PER_PORT); 2156 return (-1); 2157 } 2158 2159 mtx_lock(&softc->ctl_lock); 2160 last = (--port->wwpn_iid[iid].in_use == 0); 2161 port->wwpn_iid[iid].last_use = time_uptime; 2162 mtx_unlock(&softc->ctl_lock); 2163 if (last) 2164 ctl_i_t_nexus_loss(softc, iid, CTL_UA_POWERON); 2165 ctl_isc_announce_iid(port, iid); 2166 2167 return (0); 2168 } 2169 2170 /* 2171 * Add an initiator to the initiator map. 2172 * Returns iid for success, < 0 for failure. 2173 */ 2174 int 2175 ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 2176 { 2177 struct ctl_softc *softc = port->ctl_softc; 2178 time_t best_time; 2179 int i, best; 2180 2181 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 2182 2183 if (iid >= CTL_MAX_INIT_PER_PORT) { 2184 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 2185 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 2186 free(name, M_CTL); 2187 return (-1); 2188 } 2189 2190 mtx_lock(&softc->ctl_lock); 2191 2192 if (iid < 0 && (wwpn != 0 || name != NULL)) { 2193 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2194 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 2195 iid = i; 2196 break; 2197 } 2198 if (name != NULL && port->wwpn_iid[i].name != NULL && 2199 strcmp(name, port->wwpn_iid[i].name) == 0) { 2200 iid = i; 2201 break; 2202 } 2203 } 2204 } 2205 2206 if (iid < 0) { 2207 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2208 if (port->wwpn_iid[i].in_use == 0 && 2209 port->wwpn_iid[i].wwpn == 0 && 2210 port->wwpn_iid[i].name == NULL) { 2211 iid = i; 2212 break; 2213 } 2214 } 2215 } 2216 2217 if (iid < 0) { 2218 best = -1; 2219 best_time = INT32_MAX; 2220 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2221 if (port->wwpn_iid[i].in_use == 0) { 2222 if (port->wwpn_iid[i].last_use < best_time) { 2223 best = i; 2224 best_time = port->wwpn_iid[i].last_use; 2225 } 2226 } 2227 } 2228 iid = best; 2229 } 2230 2231 if (iid < 0) { 2232 mtx_unlock(&softc->ctl_lock); 2233 free(name, M_CTL); 2234 return (-2); 2235 } 2236 2237 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 2238 /* 2239 * This is not an error yet. 2240 */ 2241 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 2242 #if 0 2243 printf("%s: port %d iid %u WWPN %#jx arrived" 2244 " again\n", __func__, port->targ_port, 2245 iid, (uintmax_t)wwpn); 2246 #endif 2247 goto take; 2248 } 2249 if (name != NULL && port->wwpn_iid[iid].name != NULL && 2250 strcmp(name, port->wwpn_iid[iid].name) == 0) { 2251 #if 0 2252 printf("%s: port %d iid %u name '%s' arrived" 2253 " again\n", __func__, port->targ_port, 2254 iid, name); 2255 #endif 2256 goto take; 2257 } 2258 2259 /* 2260 * This is an error, but what do we do about it? The 2261 * driver is telling us we have a new WWPN for this 2262 * initiator ID, so we pretty much need to use it. 2263 */ 2264 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 2265 " but WWPN %#jx '%s' is still at that address\n", 2266 __func__, port->targ_port, iid, wwpn, name, 2267 (uintmax_t)port->wwpn_iid[iid].wwpn, 2268 port->wwpn_iid[iid].name); 2269 } 2270 take: 2271 free(port->wwpn_iid[iid].name, M_CTL); 2272 port->wwpn_iid[iid].name = name; 2273 port->wwpn_iid[iid].wwpn = wwpn; 2274 port->wwpn_iid[iid].in_use++; 2275 mtx_unlock(&softc->ctl_lock); 2276 ctl_isc_announce_iid(port, iid); 2277 2278 return (iid); 2279 } 2280 2281 static int 2282 ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 2283 { 2284 int len; 2285 2286 switch (port->port_type) { 2287 case CTL_PORT_FC: 2288 { 2289 struct scsi_transportid_fcp *id = 2290 (struct scsi_transportid_fcp *)buf; 2291 if (port->wwpn_iid[iid].wwpn == 0) 2292 return (0); 2293 memset(id, 0, sizeof(*id)); 2294 id->format_protocol = SCSI_PROTO_FC; 2295 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 2296 return (sizeof(*id)); 2297 } 2298 case CTL_PORT_ISCSI: 2299 { 2300 struct scsi_transportid_iscsi_port *id = 2301 (struct scsi_transportid_iscsi_port *)buf; 2302 if (port->wwpn_iid[iid].name == NULL) 2303 return (0); 2304 memset(id, 0, 256); 2305 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 2306 SCSI_PROTO_ISCSI; 2307 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 2308 len = roundup2(min(len, 252), 4); 2309 scsi_ulto2b(len, id->additional_length); 2310 return (sizeof(*id) + len); 2311 } 2312 case CTL_PORT_SAS: 2313 { 2314 struct scsi_transportid_sas *id = 2315 (struct scsi_transportid_sas *)buf; 2316 if (port->wwpn_iid[iid].wwpn == 0) 2317 return (0); 2318 memset(id, 0, sizeof(*id)); 2319 id->format_protocol = SCSI_PROTO_SAS; 2320 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 2321 return (sizeof(*id)); 2322 } 2323 default: 2324 { 2325 struct scsi_transportid_spi *id = 2326 (struct scsi_transportid_spi *)buf; 2327 memset(id, 0, sizeof(*id)); 2328 id->format_protocol = SCSI_PROTO_SPI; 2329 scsi_ulto2b(iid, id->scsi_addr); 2330 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 2331 return (sizeof(*id)); 2332 } 2333 } 2334 } 2335 2336 /* 2337 * Serialize a command that went down the "wrong" side, and so was sent to 2338 * this controller for execution. The logic is a little different than the 2339 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 2340 * sent back to the other side, but in the success case, we execute the 2341 * command on this side (XFER mode) or tell the other side to execute it 2342 * (SER_ONLY mode). 2343 */ 2344 static void 2345 ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 2346 { 2347 struct ctl_softc *softc = CTL_SOFTC(ctsio); 2348 struct ctl_port *port = CTL_PORT(ctsio); 2349 union ctl_ha_msg msg_info; 2350 struct ctl_lun *lun; 2351 const struct ctl_cmd_entry *entry; 2352 union ctl_io *bio; 2353 uint32_t targ_lun; 2354 2355 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 2356 2357 /* Make sure that we know about this port. */ 2358 if (port == NULL || (port->status & CTL_PORT_STATUS_ONLINE) == 0) { 2359 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 2360 /*retry_count*/ 1); 2361 goto badjuju; 2362 } 2363 2364 /* Make sure that we know about this LUN. */ 2365 mtx_lock(&softc->ctl_lock); 2366 if (targ_lun >= ctl_max_luns || 2367 (lun = softc->ctl_luns[targ_lun]) == NULL) { 2368 mtx_unlock(&softc->ctl_lock); 2369 2370 /* 2371 * The other node would not send this request to us unless 2372 * received announce that we are primary node for this LUN. 2373 * If this LUN does not exist now, it is probably result of 2374 * a race, so respond to initiator in the most opaque way. 2375 */ 2376 ctl_set_busy(ctsio); 2377 goto badjuju; 2378 } 2379 mtx_lock(&lun->lun_lock); 2380 mtx_unlock(&softc->ctl_lock); 2381 2382 /* 2383 * If the LUN is invalid, pretend that it doesn't exist. 2384 * It will go away as soon as all pending I/Os completed. 2385 */ 2386 if (lun->flags & CTL_LUN_DISABLED) { 2387 mtx_unlock(&lun->lun_lock); 2388 ctl_set_busy(ctsio); 2389 goto badjuju; 2390 } 2391 2392 entry = ctl_get_cmd_entry(ctsio, NULL); 2393 ctsio->seridx = entry->seridx; 2394 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 2395 mtx_unlock(&lun->lun_lock); 2396 goto badjuju; 2397 } 2398 2399 CTL_LUN(ctsio) = lun; 2400 CTL_BACKEND_LUN(ctsio) = lun->be_lun; 2401 2402 /* 2403 * Every I/O goes into the OOA queue for a 2404 * particular LUN, and stays there until completion. 2405 */ 2406 #ifdef CTL_TIME_IO 2407 if (LIST_EMPTY(&lun->ooa_queue)) 2408 lun->idle_time += getsbinuptime() - lun->last_busy; 2409 #endif 2410 LIST_INSERT_HEAD(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2411 2412 bio = (union ctl_io *)LIST_NEXT(&ctsio->io_hdr, ooa_links); 2413 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, &bio)) { 2414 case CTL_ACTION_PASS: 2415 case CTL_ACTION_SKIP: 2416 if (softc->ha_mode == CTL_HA_MODE_XFER) { 2417 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 2418 ctl_enqueue_rtr((union ctl_io *)ctsio); 2419 mtx_unlock(&lun->lun_lock); 2420 } else { 2421 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 2422 mtx_unlock(&lun->lun_lock); 2423 2424 /* send msg back to other side */ 2425 msg_info.hdr.original_sc = ctsio->io_hdr.remote_io; 2426 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 2427 msg_info.hdr.msg_type = CTL_MSG_R2R; 2428 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2429 sizeof(msg_info.hdr), M_WAITOK); 2430 } 2431 break; 2432 case CTL_ACTION_BLOCK: 2433 ctsio->io_hdr.blocker = bio; 2434 TAILQ_INSERT_TAIL(&bio->io_hdr.blocked_queue, &ctsio->io_hdr, 2435 blocked_links); 2436 mtx_unlock(&lun->lun_lock); 2437 break; 2438 case CTL_ACTION_OVERLAP: 2439 LIST_REMOVE(&ctsio->io_hdr, ooa_links); 2440 mtx_unlock(&lun->lun_lock); 2441 ctl_set_overlapped_cmd(ctsio); 2442 goto badjuju; 2443 case CTL_ACTION_OVERLAP_TAG: 2444 LIST_REMOVE(&ctsio->io_hdr, ooa_links); 2445 mtx_unlock(&lun->lun_lock); 2446 ctl_set_overlapped_tag(ctsio, ctsio->tag_num); 2447 badjuju: 2448 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 2449 msg_info.hdr.original_sc = ctsio->io_hdr.remote_io; 2450 msg_info.hdr.serializing_sc = NULL; 2451 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 2452 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2453 sizeof(msg_info.scsi), M_WAITOK); 2454 ctl_free_io((union ctl_io *)ctsio); 2455 break; 2456 default: 2457 __assert_unreachable(); 2458 } 2459 } 2460 2461 /* 2462 * Returns 0 for success, errno for failure. 2463 */ 2464 static void 2465 ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2466 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2467 { 2468 struct ctl_io_hdr *ioh; 2469 2470 mtx_lock(&lun->lun_lock); 2471 ioh = LIST_FIRST(&lun->ooa_queue); 2472 if (ioh == NULL) { 2473 mtx_unlock(&lun->lun_lock); 2474 return; 2475 } 2476 while (LIST_NEXT(ioh, ooa_links) != NULL) 2477 ioh = LIST_NEXT(ioh, ooa_links); 2478 for ( ; ioh; ioh = LIST_PREV(ioh, &lun->ooa_queue, ctl_io_hdr, ooa_links)) { 2479 union ctl_io *io = (union ctl_io *)ioh; 2480 struct ctl_ooa_entry *entry; 2481 2482 /* 2483 * If we've got more than we can fit, just count the 2484 * remaining entries. 2485 */ 2486 if (*cur_fill_num >= ooa_hdr->alloc_num) { 2487 (*cur_fill_num)++; 2488 continue; 2489 } 2490 2491 entry = &kern_entries[*cur_fill_num]; 2492 2493 entry->tag_num = io->scsiio.tag_num; 2494 entry->lun_num = lun->lun; 2495 #ifdef CTL_TIME_IO 2496 entry->start_bt = io->io_hdr.start_bt; 2497 #endif 2498 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2499 entry->cdb_len = io->scsiio.cdb_len; 2500 if (io->io_hdr.blocker != NULL) 2501 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2502 2503 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2504 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2505 2506 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2507 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2508 2509 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2510 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2511 2512 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2513 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2514 2515 if (io->io_hdr.flags & CTL_FLAG_STATUS_QUEUED) 2516 entry->cmd_flags |= CTL_OOACMD_FLAG_STATUS_QUEUED; 2517 2518 if (io->io_hdr.flags & CTL_FLAG_STATUS_SENT) 2519 entry->cmd_flags |= CTL_OOACMD_FLAG_STATUS_SENT; 2520 (*cur_fill_num)++; 2521 } 2522 mtx_unlock(&lun->lun_lock); 2523 } 2524 2525 /* 2526 * Escape characters that are illegal or not recommended in XML. 2527 */ 2528 int 2529 ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size) 2530 { 2531 char *end = str + size; 2532 int retval; 2533 2534 retval = 0; 2535 2536 for (; *str && str < end; str++) { 2537 switch (*str) { 2538 case '&': 2539 retval = sbuf_printf(sb, "&"); 2540 break; 2541 case '>': 2542 retval = sbuf_printf(sb, ">"); 2543 break; 2544 case '<': 2545 retval = sbuf_printf(sb, "<"); 2546 break; 2547 default: 2548 retval = sbuf_putc(sb, *str); 2549 break; 2550 } 2551 2552 if (retval != 0) 2553 break; 2554 } 2555 2556 return (retval); 2557 } 2558 2559 static void 2560 ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2561 { 2562 struct scsi_vpd_id_descriptor *desc; 2563 int i; 2564 2565 if (id == NULL || id->len < 4) 2566 return; 2567 desc = (struct scsi_vpd_id_descriptor *)id->data; 2568 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2569 case SVPD_ID_TYPE_T10: 2570 sbuf_printf(sb, "t10."); 2571 break; 2572 case SVPD_ID_TYPE_EUI64: 2573 sbuf_printf(sb, "eui."); 2574 break; 2575 case SVPD_ID_TYPE_NAA: 2576 sbuf_printf(sb, "naa."); 2577 break; 2578 case SVPD_ID_TYPE_SCSI_NAME: 2579 break; 2580 } 2581 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2582 case SVPD_ID_CODESET_BINARY: 2583 for (i = 0; i < desc->length; i++) 2584 sbuf_printf(sb, "%02x", desc->identifier[i]); 2585 break; 2586 case SVPD_ID_CODESET_ASCII: 2587 sbuf_printf(sb, "%.*s", (int)desc->length, 2588 (char *)desc->identifier); 2589 break; 2590 case SVPD_ID_CODESET_UTF8: 2591 sbuf_printf(sb, "%s", (char *)desc->identifier); 2592 break; 2593 } 2594 } 2595 2596 static int 2597 ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2598 struct thread *td) 2599 { 2600 struct ctl_softc *softc = dev->si_drv1; 2601 struct ctl_port *port; 2602 struct ctl_lun *lun; 2603 int retval; 2604 2605 retval = 0; 2606 2607 switch (cmd) { 2608 case CTL_IO: 2609 retval = ctl_ioctl_io(dev, cmd, addr, flag, td); 2610 break; 2611 case CTL_ENABLE_PORT: 2612 case CTL_DISABLE_PORT: 2613 case CTL_SET_PORT_WWNS: { 2614 struct ctl_port *port; 2615 struct ctl_port_entry *entry; 2616 2617 entry = (struct ctl_port_entry *)addr; 2618 2619 mtx_lock(&softc->ctl_lock); 2620 STAILQ_FOREACH(port, &softc->port_list, links) { 2621 int action, done; 2622 2623 if (port->targ_port < softc->port_min || 2624 port->targ_port >= softc->port_max) 2625 continue; 2626 2627 action = 0; 2628 done = 0; 2629 if ((entry->port_type == CTL_PORT_NONE) 2630 && (entry->targ_port == port->targ_port)) { 2631 /* 2632 * If the user only wants to enable or 2633 * disable or set WWNs on a specific port, 2634 * do the operation and we're done. 2635 */ 2636 action = 1; 2637 done = 1; 2638 } else if (entry->port_type & port->port_type) { 2639 /* 2640 * Compare the user's type mask with the 2641 * particular frontend type to see if we 2642 * have a match. 2643 */ 2644 action = 1; 2645 done = 0; 2646 2647 /* 2648 * Make sure the user isn't trying to set 2649 * WWNs on multiple ports at the same time. 2650 */ 2651 if (cmd == CTL_SET_PORT_WWNS) { 2652 printf("%s: Can't set WWNs on " 2653 "multiple ports\n", __func__); 2654 retval = EINVAL; 2655 break; 2656 } 2657 } 2658 if (action == 0) 2659 continue; 2660 2661 /* 2662 * XXX KDM we have to drop the lock here, because 2663 * the online/offline operations can potentially 2664 * block. We need to reference count the frontends 2665 * so they can't go away, 2666 */ 2667 if (cmd == CTL_ENABLE_PORT) { 2668 mtx_unlock(&softc->ctl_lock); 2669 ctl_port_online(port); 2670 mtx_lock(&softc->ctl_lock); 2671 } else if (cmd == CTL_DISABLE_PORT) { 2672 mtx_unlock(&softc->ctl_lock); 2673 ctl_port_offline(port); 2674 mtx_lock(&softc->ctl_lock); 2675 } else if (cmd == CTL_SET_PORT_WWNS) { 2676 ctl_port_set_wwns(port, 2677 (entry->flags & CTL_PORT_WWNN_VALID) ? 2678 1 : 0, entry->wwnn, 2679 (entry->flags & CTL_PORT_WWPN_VALID) ? 2680 1 : 0, entry->wwpn); 2681 } 2682 if (done != 0) 2683 break; 2684 } 2685 mtx_unlock(&softc->ctl_lock); 2686 break; 2687 } 2688 case CTL_GET_OOA: { 2689 struct ctl_ooa *ooa_hdr; 2690 struct ctl_ooa_entry *entries; 2691 uint32_t cur_fill_num; 2692 2693 ooa_hdr = (struct ctl_ooa *)addr; 2694 2695 if ((ooa_hdr->alloc_len == 0) 2696 || (ooa_hdr->alloc_num == 0)) { 2697 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2698 "must be non-zero\n", __func__, 2699 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2700 retval = EINVAL; 2701 break; 2702 } 2703 2704 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2705 sizeof(struct ctl_ooa_entry))) { 2706 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2707 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2708 __func__, ooa_hdr->alloc_len, 2709 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2710 retval = EINVAL; 2711 break; 2712 } 2713 2714 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2715 if (entries == NULL) { 2716 printf("%s: could not allocate %d bytes for OOA " 2717 "dump\n", __func__, ooa_hdr->alloc_len); 2718 retval = ENOMEM; 2719 break; 2720 } 2721 2722 mtx_lock(&softc->ctl_lock); 2723 if ((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0 && 2724 (ooa_hdr->lun_num >= ctl_max_luns || 2725 softc->ctl_luns[ooa_hdr->lun_num] == NULL)) { 2726 mtx_unlock(&softc->ctl_lock); 2727 free(entries, M_CTL); 2728 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2729 __func__, (uintmax_t)ooa_hdr->lun_num); 2730 retval = EINVAL; 2731 break; 2732 } 2733 2734 cur_fill_num = 0; 2735 2736 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2737 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2738 ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2739 ooa_hdr, entries); 2740 } 2741 } else { 2742 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2743 ctl_ioctl_fill_ooa(lun, &cur_fill_num, ooa_hdr, 2744 entries); 2745 } 2746 mtx_unlock(&softc->ctl_lock); 2747 2748 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2749 ooa_hdr->fill_len = ooa_hdr->fill_num * 2750 sizeof(struct ctl_ooa_entry); 2751 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2752 if (retval != 0) { 2753 printf("%s: error copying out %d bytes for OOA dump\n", 2754 __func__, ooa_hdr->fill_len); 2755 } 2756 2757 getbinuptime(&ooa_hdr->cur_bt); 2758 2759 if (cur_fill_num > ooa_hdr->alloc_num) { 2760 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2761 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2762 } else { 2763 ooa_hdr->dropped_num = 0; 2764 ooa_hdr->status = CTL_OOA_OK; 2765 } 2766 2767 free(entries, M_CTL); 2768 break; 2769 } 2770 case CTL_DELAY_IO: { 2771 struct ctl_io_delay_info *delay_info; 2772 2773 delay_info = (struct ctl_io_delay_info *)addr; 2774 2775 #ifdef CTL_IO_DELAY 2776 mtx_lock(&softc->ctl_lock); 2777 if (delay_info->lun_id >= ctl_max_luns || 2778 (lun = softc->ctl_luns[delay_info->lun_id]) == NULL) { 2779 mtx_unlock(&softc->ctl_lock); 2780 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2781 break; 2782 } 2783 mtx_lock(&lun->lun_lock); 2784 mtx_unlock(&softc->ctl_lock); 2785 delay_info->status = CTL_DELAY_STATUS_OK; 2786 switch (delay_info->delay_type) { 2787 case CTL_DELAY_TYPE_CONT: 2788 case CTL_DELAY_TYPE_ONESHOT: 2789 break; 2790 default: 2791 delay_info->status = CTL_DELAY_STATUS_INVALID_TYPE; 2792 break; 2793 } 2794 switch (delay_info->delay_loc) { 2795 case CTL_DELAY_LOC_DATAMOVE: 2796 lun->delay_info.datamove_type = delay_info->delay_type; 2797 lun->delay_info.datamove_delay = delay_info->delay_secs; 2798 break; 2799 case CTL_DELAY_LOC_DONE: 2800 lun->delay_info.done_type = delay_info->delay_type; 2801 lun->delay_info.done_delay = delay_info->delay_secs; 2802 break; 2803 default: 2804 delay_info->status = CTL_DELAY_STATUS_INVALID_LOC; 2805 break; 2806 } 2807 mtx_unlock(&lun->lun_lock); 2808 #else 2809 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2810 #endif /* CTL_IO_DELAY */ 2811 break; 2812 } 2813 case CTL_ERROR_INJECT: { 2814 struct ctl_error_desc *err_desc, *new_err_desc; 2815 2816 err_desc = (struct ctl_error_desc *)addr; 2817 2818 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2819 M_WAITOK | M_ZERO); 2820 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2821 2822 mtx_lock(&softc->ctl_lock); 2823 if (err_desc->lun_id >= ctl_max_luns || 2824 (lun = softc->ctl_luns[err_desc->lun_id]) == NULL) { 2825 mtx_unlock(&softc->ctl_lock); 2826 free(new_err_desc, M_CTL); 2827 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2828 __func__, (uintmax_t)err_desc->lun_id); 2829 retval = EINVAL; 2830 break; 2831 } 2832 mtx_lock(&lun->lun_lock); 2833 mtx_unlock(&softc->ctl_lock); 2834 2835 /* 2836 * We could do some checking here to verify the validity 2837 * of the request, but given the complexity of error 2838 * injection requests, the checking logic would be fairly 2839 * complex. 2840 * 2841 * For now, if the request is invalid, it just won't get 2842 * executed and might get deleted. 2843 */ 2844 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2845 2846 /* 2847 * XXX KDM check to make sure the serial number is unique, 2848 * in case we somehow manage to wrap. That shouldn't 2849 * happen for a very long time, but it's the right thing to 2850 * do. 2851 */ 2852 new_err_desc->serial = lun->error_serial; 2853 err_desc->serial = lun->error_serial; 2854 lun->error_serial++; 2855 2856 mtx_unlock(&lun->lun_lock); 2857 break; 2858 } 2859 case CTL_ERROR_INJECT_DELETE: { 2860 struct ctl_error_desc *delete_desc, *desc, *desc2; 2861 int delete_done; 2862 2863 delete_desc = (struct ctl_error_desc *)addr; 2864 delete_done = 0; 2865 2866 mtx_lock(&softc->ctl_lock); 2867 if (delete_desc->lun_id >= ctl_max_luns || 2868 (lun = softc->ctl_luns[delete_desc->lun_id]) == NULL) { 2869 mtx_unlock(&softc->ctl_lock); 2870 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2871 __func__, (uintmax_t)delete_desc->lun_id); 2872 retval = EINVAL; 2873 break; 2874 } 2875 mtx_lock(&lun->lun_lock); 2876 mtx_unlock(&softc->ctl_lock); 2877 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2878 if (desc->serial != delete_desc->serial) 2879 continue; 2880 2881 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2882 links); 2883 free(desc, M_CTL); 2884 delete_done = 1; 2885 } 2886 mtx_unlock(&lun->lun_lock); 2887 if (delete_done == 0) { 2888 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2889 "error serial %ju on LUN %u\n", __func__, 2890 delete_desc->serial, delete_desc->lun_id); 2891 retval = EINVAL; 2892 break; 2893 } 2894 break; 2895 } 2896 case CTL_DUMP_STRUCTS: { 2897 int j, k; 2898 struct ctl_port *port; 2899 struct ctl_frontend *fe; 2900 2901 mtx_lock(&softc->ctl_lock); 2902 printf("CTL Persistent Reservation information start:\n"); 2903 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2904 mtx_lock(&lun->lun_lock); 2905 if ((lun->flags & CTL_LUN_DISABLED) != 0) { 2906 mtx_unlock(&lun->lun_lock); 2907 continue; 2908 } 2909 2910 for (j = 0; j < ctl_max_ports; j++) { 2911 if (lun->pr_keys[j] == NULL) 2912 continue; 2913 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2914 if (lun->pr_keys[j][k] == 0) 2915 continue; 2916 printf(" LUN %ju port %d iid %d key " 2917 "%#jx\n", lun->lun, j, k, 2918 (uintmax_t)lun->pr_keys[j][k]); 2919 } 2920 } 2921 mtx_unlock(&lun->lun_lock); 2922 } 2923 printf("CTL Persistent Reservation information end\n"); 2924 printf("CTL Ports:\n"); 2925 STAILQ_FOREACH(port, &softc->port_list, links) { 2926 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 2927 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 2928 port->frontend->name, port->port_type, 2929 port->physical_port, port->virtual_port, 2930 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 2931 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 2932 if (port->wwpn_iid[j].in_use == 0 && 2933 port->wwpn_iid[j].wwpn == 0 && 2934 port->wwpn_iid[j].name == NULL) 2935 continue; 2936 2937 printf(" iid %u use %d WWPN %#jx '%s'\n", 2938 j, port->wwpn_iid[j].in_use, 2939 (uintmax_t)port->wwpn_iid[j].wwpn, 2940 port->wwpn_iid[j].name); 2941 } 2942 } 2943 printf("CTL Port information end\n"); 2944 mtx_unlock(&softc->ctl_lock); 2945 /* 2946 * XXX KDM calling this without a lock. We'd likely want 2947 * to drop the lock before calling the frontend's dump 2948 * routine anyway. 2949 */ 2950 printf("CTL Frontends:\n"); 2951 STAILQ_FOREACH(fe, &softc->fe_list, links) { 2952 printf(" Frontend '%s'\n", fe->name); 2953 if (fe->fe_dump != NULL) 2954 fe->fe_dump(); 2955 } 2956 printf("CTL Frontend information end\n"); 2957 break; 2958 } 2959 case CTL_LUN_REQ: { 2960 struct ctl_lun_req *lun_req; 2961 struct ctl_backend_driver *backend; 2962 void *packed; 2963 nvlist_t *tmp_args_nvl; 2964 size_t packed_len; 2965 2966 lun_req = (struct ctl_lun_req *)addr; 2967 tmp_args_nvl = lun_req->args_nvl; 2968 2969 backend = ctl_backend_find(lun_req->backend); 2970 if (backend == NULL) { 2971 lun_req->status = CTL_LUN_ERROR; 2972 snprintf(lun_req->error_str, 2973 sizeof(lun_req->error_str), 2974 "Backend \"%s\" not found.", 2975 lun_req->backend); 2976 break; 2977 } 2978 2979 if (lun_req->args != NULL) { 2980 if (lun_req->args_len > CTL_MAX_ARGS_LEN) { 2981 lun_req->status = CTL_LUN_ERROR; 2982 snprintf(lun_req->error_str, sizeof(lun_req->error_str), 2983 "Too big args."); 2984 break; 2985 } 2986 packed = malloc(lun_req->args_len, M_CTL, M_WAITOK); 2987 if (copyin(lun_req->args, packed, lun_req->args_len) != 0) { 2988 free(packed, M_CTL); 2989 lun_req->status = CTL_LUN_ERROR; 2990 snprintf(lun_req->error_str, sizeof(lun_req->error_str), 2991 "Cannot copyin args."); 2992 break; 2993 } 2994 lun_req->args_nvl = nvlist_unpack(packed, 2995 lun_req->args_len, 0); 2996 free(packed, M_CTL); 2997 2998 if (lun_req->args_nvl == NULL) { 2999 lun_req->status = CTL_LUN_ERROR; 3000 snprintf(lun_req->error_str, sizeof(lun_req->error_str), 3001 "Cannot unpack args nvlist."); 3002 break; 3003 } 3004 } else 3005 lun_req->args_nvl = nvlist_create(0); 3006 3007 lun_req->result_nvl = NULL; 3008 retval = backend->ioctl(dev, cmd, addr, flag, td); 3009 nvlist_destroy(lun_req->args_nvl); 3010 lun_req->args_nvl = tmp_args_nvl; 3011 3012 if (lun_req->result_nvl != NULL) { 3013 if (lun_req->result != NULL) { 3014 packed = nvlist_pack(lun_req->result_nvl, 3015 &packed_len); 3016 if (packed == NULL) { 3017 lun_req->status = CTL_LUN_ERROR; 3018 snprintf(lun_req->error_str, 3019 sizeof(lun_req->error_str), 3020 "Cannot pack result nvlist."); 3021 break; 3022 } 3023 3024 if (packed_len > lun_req->result_len) { 3025 lun_req->status = CTL_LUN_ERROR; 3026 snprintf(lun_req->error_str, 3027 sizeof(lun_req->error_str), 3028 "Result nvlist too large."); 3029 free(packed, M_NVLIST); 3030 break; 3031 } 3032 3033 if (copyout(packed, lun_req->result, packed_len)) { 3034 lun_req->status = CTL_LUN_ERROR; 3035 snprintf(lun_req->error_str, 3036 sizeof(lun_req->error_str), 3037 "Cannot copyout() the result."); 3038 free(packed, M_NVLIST); 3039 break; 3040 } 3041 3042 lun_req->result_len = packed_len; 3043 free(packed, M_NVLIST); 3044 } 3045 3046 nvlist_destroy(lun_req->result_nvl); 3047 } 3048 break; 3049 } 3050 case CTL_LUN_LIST: { 3051 struct sbuf *sb; 3052 struct ctl_lun_list *list; 3053 const char *name, *value; 3054 void *cookie; 3055 int type; 3056 3057 list = (struct ctl_lun_list *)addr; 3058 3059 /* 3060 * Allocate a fixed length sbuf here, based on the length 3061 * of the user's buffer. We could allocate an auto-extending 3062 * buffer, and then tell the user how much larger our 3063 * amount of data is than his buffer, but that presents 3064 * some problems: 3065 * 3066 * 1. The sbuf(9) routines use a blocking malloc, and so 3067 * we can't hold a lock while calling them with an 3068 * auto-extending buffer. 3069 * 3070 * 2. There is not currently a LUN reference counting 3071 * mechanism, outside of outstanding transactions on 3072 * the LUN's OOA queue. So a LUN could go away on us 3073 * while we're getting the LUN number, backend-specific 3074 * information, etc. Thus, given the way things 3075 * currently work, we need to hold the CTL lock while 3076 * grabbing LUN information. 3077 * 3078 * So, from the user's standpoint, the best thing to do is 3079 * allocate what he thinks is a reasonable buffer length, 3080 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3081 * double the buffer length and try again. (And repeat 3082 * that until he succeeds.) 3083 */ 3084 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3085 if (sb == NULL) { 3086 list->status = CTL_LUN_LIST_ERROR; 3087 snprintf(list->error_str, sizeof(list->error_str), 3088 "Unable to allocate %d bytes for LUN list", 3089 list->alloc_len); 3090 break; 3091 } 3092 3093 sbuf_printf(sb, "<ctllunlist>\n"); 3094 3095 mtx_lock(&softc->ctl_lock); 3096 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3097 mtx_lock(&lun->lun_lock); 3098 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3099 (uintmax_t)lun->lun); 3100 3101 /* 3102 * Bail out as soon as we see that we've overfilled 3103 * the buffer. 3104 */ 3105 if (retval != 0) 3106 break; 3107 3108 retval = sbuf_printf(sb, "\t<backend_type>%s" 3109 "</backend_type>\n", 3110 (lun->backend == NULL) ? "none" : 3111 lun->backend->name); 3112 3113 if (retval != 0) 3114 break; 3115 3116 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3117 lun->be_lun->lun_type); 3118 3119 if (retval != 0) 3120 break; 3121 3122 if (lun->backend == NULL) { 3123 retval = sbuf_printf(sb, "</lun>\n"); 3124 if (retval != 0) 3125 break; 3126 continue; 3127 } 3128 3129 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3130 (lun->be_lun->maxlba > 0) ? 3131 lun->be_lun->maxlba + 1 : 0); 3132 3133 if (retval != 0) 3134 break; 3135 3136 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3137 lun->be_lun->blocksize); 3138 3139 if (retval != 0) 3140 break; 3141 3142 retval = sbuf_printf(sb, "\t<serial_number>"); 3143 3144 if (retval != 0) 3145 break; 3146 3147 retval = ctl_sbuf_printf_esc(sb, 3148 lun->be_lun->serial_num, 3149 sizeof(lun->be_lun->serial_num)); 3150 3151 if (retval != 0) 3152 break; 3153 3154 retval = sbuf_printf(sb, "</serial_number>\n"); 3155 3156 if (retval != 0) 3157 break; 3158 3159 retval = sbuf_printf(sb, "\t<device_id>"); 3160 3161 if (retval != 0) 3162 break; 3163 3164 retval = ctl_sbuf_printf_esc(sb, 3165 lun->be_lun->device_id, 3166 sizeof(lun->be_lun->device_id)); 3167 3168 if (retval != 0) 3169 break; 3170 3171 retval = sbuf_printf(sb, "</device_id>\n"); 3172 3173 if (retval != 0) 3174 break; 3175 3176 if (lun->backend->lun_info != NULL) { 3177 retval = lun->backend->lun_info(lun->be_lun, sb); 3178 if (retval != 0) 3179 break; 3180 } 3181 3182 cookie = NULL; 3183 while ((name = nvlist_next(lun->be_lun->options, &type, 3184 &cookie)) != NULL) { 3185 sbuf_printf(sb, "\t<%s>", name); 3186 3187 if (type == NV_TYPE_STRING) { 3188 value = dnvlist_get_string( 3189 lun->be_lun->options, name, NULL); 3190 if (value != NULL) 3191 sbuf_printf(sb, "%s", value); 3192 } 3193 3194 sbuf_printf(sb, "</%s>\n", name); 3195 } 3196 3197 retval = sbuf_printf(sb, "</lun>\n"); 3198 3199 if (retval != 0) 3200 break; 3201 mtx_unlock(&lun->lun_lock); 3202 } 3203 if (lun != NULL) 3204 mtx_unlock(&lun->lun_lock); 3205 mtx_unlock(&softc->ctl_lock); 3206 3207 if ((retval != 0) 3208 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3209 retval = 0; 3210 sbuf_delete(sb); 3211 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3212 snprintf(list->error_str, sizeof(list->error_str), 3213 "Out of space, %d bytes is too small", 3214 list->alloc_len); 3215 break; 3216 } 3217 3218 sbuf_finish(sb); 3219 3220 retval = copyout(sbuf_data(sb), list->lun_xml, 3221 sbuf_len(sb) + 1); 3222 3223 list->fill_len = sbuf_len(sb) + 1; 3224 list->status = CTL_LUN_LIST_OK; 3225 sbuf_delete(sb); 3226 break; 3227 } 3228 case CTL_ISCSI: { 3229 struct ctl_iscsi *ci; 3230 struct ctl_frontend *fe; 3231 3232 ci = (struct ctl_iscsi *)addr; 3233 3234 fe = ctl_frontend_find("iscsi"); 3235 if (fe == NULL) { 3236 ci->status = CTL_ISCSI_ERROR; 3237 snprintf(ci->error_str, sizeof(ci->error_str), 3238 "Frontend \"iscsi\" not found."); 3239 break; 3240 } 3241 3242 retval = fe->ioctl(dev, cmd, addr, flag, td); 3243 break; 3244 } 3245 case CTL_PORT_REQ: { 3246 struct ctl_req *req; 3247 struct ctl_frontend *fe; 3248 void *packed; 3249 nvlist_t *tmp_args_nvl; 3250 size_t packed_len; 3251 3252 req = (struct ctl_req *)addr; 3253 tmp_args_nvl = req->args_nvl; 3254 3255 fe = ctl_frontend_find(req->driver); 3256 if (fe == NULL) { 3257 req->status = CTL_LUN_ERROR; 3258 snprintf(req->error_str, sizeof(req->error_str), 3259 "Frontend \"%s\" not found.", req->driver); 3260 break; 3261 } 3262 3263 if (req->args != NULL) { 3264 if (req->args_len > CTL_MAX_ARGS_LEN) { 3265 req->status = CTL_LUN_ERROR; 3266 snprintf(req->error_str, sizeof(req->error_str), 3267 "Too big args."); 3268 break; 3269 } 3270 packed = malloc(req->args_len, M_CTL, M_WAITOK); 3271 if (copyin(req->args, packed, req->args_len) != 0) { 3272 free(packed, M_CTL); 3273 req->status = CTL_LUN_ERROR; 3274 snprintf(req->error_str, sizeof(req->error_str), 3275 "Cannot copyin args."); 3276 break; 3277 } 3278 req->args_nvl = nvlist_unpack(packed, 3279 req->args_len, 0); 3280 free(packed, M_CTL); 3281 3282 if (req->args_nvl == NULL) { 3283 req->status = CTL_LUN_ERROR; 3284 snprintf(req->error_str, sizeof(req->error_str), 3285 "Cannot unpack args nvlist."); 3286 break; 3287 } 3288 } else 3289 req->args_nvl = nvlist_create(0); 3290 3291 req->result_nvl = NULL; 3292 if (fe->ioctl) 3293 retval = fe->ioctl(dev, cmd, addr, flag, td); 3294 else 3295 retval = ENODEV; 3296 3297 nvlist_destroy(req->args_nvl); 3298 req->args_nvl = tmp_args_nvl; 3299 3300 if (req->result_nvl != NULL) { 3301 if (req->result != NULL) { 3302 packed = nvlist_pack(req->result_nvl, 3303 &packed_len); 3304 if (packed == NULL) { 3305 req->status = CTL_LUN_ERROR; 3306 snprintf(req->error_str, 3307 sizeof(req->error_str), 3308 "Cannot pack result nvlist."); 3309 break; 3310 } 3311 3312 if (packed_len > req->result_len) { 3313 req->status = CTL_LUN_ERROR; 3314 snprintf(req->error_str, 3315 sizeof(req->error_str), 3316 "Result nvlist too large."); 3317 free(packed, M_NVLIST); 3318 break; 3319 } 3320 3321 if (copyout(packed, req->result, packed_len)) { 3322 req->status = CTL_LUN_ERROR; 3323 snprintf(req->error_str, 3324 sizeof(req->error_str), 3325 "Cannot copyout() the result."); 3326 free(packed, M_NVLIST); 3327 break; 3328 } 3329 3330 req->result_len = packed_len; 3331 free(packed, M_NVLIST); 3332 } 3333 3334 nvlist_destroy(req->result_nvl); 3335 } 3336 break; 3337 } 3338 case CTL_PORT_LIST: { 3339 struct sbuf *sb; 3340 struct ctl_port *port; 3341 struct ctl_lun_list *list; 3342 const char *name, *value; 3343 void *cookie; 3344 int j, type; 3345 uint32_t plun; 3346 3347 list = (struct ctl_lun_list *)addr; 3348 3349 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3350 if (sb == NULL) { 3351 list->status = CTL_LUN_LIST_ERROR; 3352 snprintf(list->error_str, sizeof(list->error_str), 3353 "Unable to allocate %d bytes for LUN list", 3354 list->alloc_len); 3355 break; 3356 } 3357 3358 sbuf_printf(sb, "<ctlportlist>\n"); 3359 3360 mtx_lock(&softc->ctl_lock); 3361 STAILQ_FOREACH(port, &softc->port_list, links) { 3362 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3363 (uintmax_t)port->targ_port); 3364 3365 /* 3366 * Bail out as soon as we see that we've overfilled 3367 * the buffer. 3368 */ 3369 if (retval != 0) 3370 break; 3371 3372 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3373 "</frontend_type>\n", port->frontend->name); 3374 if (retval != 0) 3375 break; 3376 3377 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3378 port->port_type); 3379 if (retval != 0) 3380 break; 3381 3382 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3383 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3384 if (retval != 0) 3385 break; 3386 3387 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3388 port->port_name); 3389 if (retval != 0) 3390 break; 3391 3392 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3393 port->physical_port); 3394 if (retval != 0) 3395 break; 3396 3397 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3398 port->virtual_port); 3399 if (retval != 0) 3400 break; 3401 3402 if (port->target_devid != NULL) { 3403 sbuf_printf(sb, "\t<target>"); 3404 ctl_id_sbuf(port->target_devid, sb); 3405 sbuf_printf(sb, "</target>\n"); 3406 } 3407 3408 if (port->port_devid != NULL) { 3409 sbuf_printf(sb, "\t<port>"); 3410 ctl_id_sbuf(port->port_devid, sb); 3411 sbuf_printf(sb, "</port>\n"); 3412 } 3413 3414 if (port->port_info != NULL) { 3415 retval = port->port_info(port->onoff_arg, sb); 3416 if (retval != 0) 3417 break; 3418 } 3419 3420 cookie = NULL; 3421 while ((name = nvlist_next(port->options, &type, 3422 &cookie)) != NULL) { 3423 sbuf_printf(sb, "\t<%s>", name); 3424 3425 if (type == NV_TYPE_STRING) { 3426 value = dnvlist_get_string(port->options, 3427 name, NULL); 3428 if (value != NULL) 3429 sbuf_printf(sb, "%s", value); 3430 } 3431 3432 sbuf_printf(sb, "</%s>\n", name); 3433 } 3434 3435 if (port->lun_map != NULL) { 3436 sbuf_printf(sb, "\t<lun_map>on</lun_map>\n"); 3437 for (j = 0; j < port->lun_map_size; j++) { 3438 plun = ctl_lun_map_from_port(port, j); 3439 if (plun == UINT32_MAX) 3440 continue; 3441 sbuf_printf(sb, 3442 "\t<lun id=\"%u\">%u</lun>\n", 3443 j, plun); 3444 } 3445 } 3446 3447 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3448 if (port->wwpn_iid[j].in_use == 0 || 3449 (port->wwpn_iid[j].wwpn == 0 && 3450 port->wwpn_iid[j].name == NULL)) 3451 continue; 3452 3453 if (port->wwpn_iid[j].name != NULL) 3454 retval = sbuf_printf(sb, 3455 "\t<initiator id=\"%u\">%s</initiator>\n", 3456 j, port->wwpn_iid[j].name); 3457 else 3458 retval = sbuf_printf(sb, 3459 "\t<initiator id=\"%u\">naa.%08jx</initiator>\n", 3460 j, port->wwpn_iid[j].wwpn); 3461 if (retval != 0) 3462 break; 3463 } 3464 if (retval != 0) 3465 break; 3466 3467 retval = sbuf_printf(sb, "</targ_port>\n"); 3468 if (retval != 0) 3469 break; 3470 } 3471 mtx_unlock(&softc->ctl_lock); 3472 3473 if ((retval != 0) 3474 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3475 retval = 0; 3476 sbuf_delete(sb); 3477 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3478 snprintf(list->error_str, sizeof(list->error_str), 3479 "Out of space, %d bytes is too small", 3480 list->alloc_len); 3481 break; 3482 } 3483 3484 sbuf_finish(sb); 3485 3486 retval = copyout(sbuf_data(sb), list->lun_xml, 3487 sbuf_len(sb) + 1); 3488 3489 list->fill_len = sbuf_len(sb) + 1; 3490 list->status = CTL_LUN_LIST_OK; 3491 sbuf_delete(sb); 3492 break; 3493 } 3494 case CTL_LUN_MAP: { 3495 struct ctl_lun_map *lm = (struct ctl_lun_map *)addr; 3496 struct ctl_port *port; 3497 3498 mtx_lock(&softc->ctl_lock); 3499 if (lm->port < softc->port_min || 3500 lm->port >= softc->port_max || 3501 (port = softc->ctl_ports[lm->port]) == NULL) { 3502 mtx_unlock(&softc->ctl_lock); 3503 return (ENXIO); 3504 } 3505 if (port->status & CTL_PORT_STATUS_ONLINE) { 3506 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3507 if (ctl_lun_map_to_port(port, lun->lun) == 3508 UINT32_MAX) 3509 continue; 3510 mtx_lock(&lun->lun_lock); 3511 ctl_est_ua_port(lun, lm->port, -1, 3512 CTL_UA_LUN_CHANGE); 3513 mtx_unlock(&lun->lun_lock); 3514 } 3515 } 3516 mtx_unlock(&softc->ctl_lock); // XXX: port_enable sleeps 3517 if (lm->plun != UINT32_MAX) { 3518 if (lm->lun == UINT32_MAX) 3519 retval = ctl_lun_map_unset(port, lm->plun); 3520 else if (lm->lun < ctl_max_luns && 3521 softc->ctl_luns[lm->lun] != NULL) 3522 retval = ctl_lun_map_set(port, lm->plun, lm->lun); 3523 else 3524 return (ENXIO); 3525 } else { 3526 if (lm->lun == UINT32_MAX) 3527 retval = ctl_lun_map_deinit(port); 3528 else 3529 retval = ctl_lun_map_init(port); 3530 } 3531 if (port->status & CTL_PORT_STATUS_ONLINE) 3532 ctl_isc_announce_port(port); 3533 break; 3534 } 3535 case CTL_GET_LUN_STATS: { 3536 struct ctl_get_io_stats *stats = (struct ctl_get_io_stats *)addr; 3537 int i; 3538 3539 /* 3540 * XXX KDM no locking here. If the LUN list changes, 3541 * things can blow up. 3542 */ 3543 i = 0; 3544 stats->status = CTL_SS_OK; 3545 stats->fill_len = 0; 3546 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3547 if (lun->lun < stats->first_item) 3548 continue; 3549 if (stats->fill_len + sizeof(lun->stats) > 3550 stats->alloc_len) { 3551 stats->status = CTL_SS_NEED_MORE_SPACE; 3552 break; 3553 } 3554 retval = copyout(&lun->stats, &stats->stats[i++], 3555 sizeof(lun->stats)); 3556 if (retval != 0) 3557 break; 3558 stats->fill_len += sizeof(lun->stats); 3559 } 3560 stats->num_items = softc->num_luns; 3561 stats->flags = CTL_STATS_FLAG_NONE; 3562 #ifdef CTL_TIME_IO 3563 stats->flags |= CTL_STATS_FLAG_TIME_VALID; 3564 #endif 3565 getnanouptime(&stats->timestamp); 3566 break; 3567 } 3568 case CTL_GET_PORT_STATS: { 3569 struct ctl_get_io_stats *stats = (struct ctl_get_io_stats *)addr; 3570 int i; 3571 3572 /* 3573 * XXX KDM no locking here. If the LUN list changes, 3574 * things can blow up. 3575 */ 3576 i = 0; 3577 stats->status = CTL_SS_OK; 3578 stats->fill_len = 0; 3579 STAILQ_FOREACH(port, &softc->port_list, links) { 3580 if (port->targ_port < stats->first_item) 3581 continue; 3582 if (stats->fill_len + sizeof(port->stats) > 3583 stats->alloc_len) { 3584 stats->status = CTL_SS_NEED_MORE_SPACE; 3585 break; 3586 } 3587 retval = copyout(&port->stats, &stats->stats[i++], 3588 sizeof(port->stats)); 3589 if (retval != 0) 3590 break; 3591 stats->fill_len += sizeof(port->stats); 3592 } 3593 stats->num_items = softc->num_ports; 3594 stats->flags = CTL_STATS_FLAG_NONE; 3595 #ifdef CTL_TIME_IO 3596 stats->flags |= CTL_STATS_FLAG_TIME_VALID; 3597 #endif 3598 getnanouptime(&stats->timestamp); 3599 break; 3600 } 3601 default: { 3602 /* XXX KDM should we fix this? */ 3603 #if 0 3604 struct ctl_backend_driver *backend; 3605 unsigned int type; 3606 int found; 3607 3608 found = 0; 3609 3610 /* 3611 * We encode the backend type as the ioctl type for backend 3612 * ioctls. So parse it out here, and then search for a 3613 * backend of this type. 3614 */ 3615 type = _IOC_TYPE(cmd); 3616 3617 STAILQ_FOREACH(backend, &softc->be_list, links) { 3618 if (backend->type == type) { 3619 found = 1; 3620 break; 3621 } 3622 } 3623 if (found == 0) { 3624 printf("ctl: unknown ioctl command %#lx or backend " 3625 "%d\n", cmd, type); 3626 retval = EINVAL; 3627 break; 3628 } 3629 retval = backend->ioctl(dev, cmd, addr, flag, td); 3630 #endif 3631 retval = ENOTTY; 3632 break; 3633 } 3634 } 3635 return (retval); 3636 } 3637 3638 uint32_t 3639 ctl_get_initindex(struct ctl_nexus *nexus) 3640 { 3641 return (nexus->initid + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3642 } 3643 3644 int 3645 ctl_lun_map_init(struct ctl_port *port) 3646 { 3647 struct ctl_softc *softc = port->ctl_softc; 3648 struct ctl_lun *lun; 3649 int size = ctl_lun_map_size; 3650 uint32_t i; 3651 3652 if (port->lun_map == NULL || port->lun_map_size < size) { 3653 port->lun_map_size = 0; 3654 free(port->lun_map, M_CTL); 3655 port->lun_map = malloc(size * sizeof(uint32_t), 3656 M_CTL, M_NOWAIT); 3657 } 3658 if (port->lun_map == NULL) 3659 return (ENOMEM); 3660 for (i = 0; i < size; i++) 3661 port->lun_map[i] = UINT32_MAX; 3662 port->lun_map_size = size; 3663 if (port->status & CTL_PORT_STATUS_ONLINE) { 3664 if (port->lun_disable != NULL) { 3665 STAILQ_FOREACH(lun, &softc->lun_list, links) 3666 port->lun_disable(port->targ_lun_arg, lun->lun); 3667 } 3668 ctl_isc_announce_port(port); 3669 } 3670 return (0); 3671 } 3672 3673 int 3674 ctl_lun_map_deinit(struct ctl_port *port) 3675 { 3676 struct ctl_softc *softc = port->ctl_softc; 3677 struct ctl_lun *lun; 3678 3679 if (port->lun_map == NULL) 3680 return (0); 3681 port->lun_map_size = 0; 3682 free(port->lun_map, M_CTL); 3683 port->lun_map = NULL; 3684 if (port->status & CTL_PORT_STATUS_ONLINE) { 3685 if (port->lun_enable != NULL) { 3686 STAILQ_FOREACH(lun, &softc->lun_list, links) 3687 port->lun_enable(port->targ_lun_arg, lun->lun); 3688 } 3689 ctl_isc_announce_port(port); 3690 } 3691 return (0); 3692 } 3693 3694 int 3695 ctl_lun_map_set(struct ctl_port *port, uint32_t plun, uint32_t glun) 3696 { 3697 int status; 3698 uint32_t old; 3699 3700 if (port->lun_map == NULL) { 3701 status = ctl_lun_map_init(port); 3702 if (status != 0) 3703 return (status); 3704 } 3705 if (plun >= port->lun_map_size) 3706 return (EINVAL); 3707 old = port->lun_map[plun]; 3708 port->lun_map[plun] = glun; 3709 if ((port->status & CTL_PORT_STATUS_ONLINE) && old == UINT32_MAX) { 3710 if (port->lun_enable != NULL) 3711 port->lun_enable(port->targ_lun_arg, plun); 3712 ctl_isc_announce_port(port); 3713 } 3714 return (0); 3715 } 3716 3717 int 3718 ctl_lun_map_unset(struct ctl_port *port, uint32_t plun) 3719 { 3720 uint32_t old; 3721 3722 if (port->lun_map == NULL || plun >= port->lun_map_size) 3723 return (0); 3724 old = port->lun_map[plun]; 3725 port->lun_map[plun] = UINT32_MAX; 3726 if ((port->status & CTL_PORT_STATUS_ONLINE) && old != UINT32_MAX) { 3727 if (port->lun_disable != NULL) 3728 port->lun_disable(port->targ_lun_arg, plun); 3729 ctl_isc_announce_port(port); 3730 } 3731 return (0); 3732 } 3733 3734 uint32_t 3735 ctl_lun_map_from_port(struct ctl_port *port, uint32_t lun_id) 3736 { 3737 3738 if (port == NULL) 3739 return (UINT32_MAX); 3740 if (port->lun_map == NULL) 3741 return (lun_id); 3742 if (lun_id > port->lun_map_size) 3743 return (UINT32_MAX); 3744 return (port->lun_map[lun_id]); 3745 } 3746 3747 uint32_t 3748 ctl_lun_map_to_port(struct ctl_port *port, uint32_t lun_id) 3749 { 3750 uint32_t i; 3751 3752 if (port == NULL) 3753 return (UINT32_MAX); 3754 if (port->lun_map == NULL) 3755 return (lun_id); 3756 for (i = 0; i < port->lun_map_size; i++) { 3757 if (port->lun_map[i] == lun_id) 3758 return (i); 3759 } 3760 return (UINT32_MAX); 3761 } 3762 3763 uint32_t 3764 ctl_decode_lun(uint64_t encoded) 3765 { 3766 uint8_t lun[8]; 3767 uint32_t result = 0xffffffff; 3768 3769 be64enc(lun, encoded); 3770 switch (lun[0] & RPL_LUNDATA_ATYP_MASK) { 3771 case RPL_LUNDATA_ATYP_PERIPH: 3772 if ((lun[0] & 0x3f) == 0 && lun[2] == 0 && lun[3] == 0 && 3773 lun[4] == 0 && lun[5] == 0 && lun[6] == 0 && lun[7] == 0) 3774 result = lun[1]; 3775 break; 3776 case RPL_LUNDATA_ATYP_FLAT: 3777 if (lun[2] == 0 && lun[3] == 0 && lun[4] == 0 && lun[5] == 0 && 3778 lun[6] == 0 && lun[7] == 0) 3779 result = ((lun[0] & 0x3f) << 8) + lun[1]; 3780 break; 3781 case RPL_LUNDATA_ATYP_EXTLUN: 3782 switch (lun[0] & RPL_LUNDATA_EXT_EAM_MASK) { 3783 case 0x02: 3784 switch (lun[0] & RPL_LUNDATA_EXT_LEN_MASK) { 3785 case 0x00: 3786 result = lun[1]; 3787 break; 3788 case 0x10: 3789 result = (lun[1] << 16) + (lun[2] << 8) + 3790 lun[3]; 3791 break; 3792 case 0x20: 3793 if (lun[1] == 0 && lun[6] == 0 && lun[7] == 0) 3794 result = (lun[2] << 24) + 3795 (lun[3] << 16) + (lun[4] << 8) + 3796 lun[5]; 3797 break; 3798 } 3799 break; 3800 case RPL_LUNDATA_EXT_EAM_NOT_SPEC: 3801 result = 0xffffffff; 3802 break; 3803 } 3804 break; 3805 } 3806 return (result); 3807 } 3808 3809 uint64_t 3810 ctl_encode_lun(uint32_t decoded) 3811 { 3812 uint64_t l = decoded; 3813 3814 if (l <= 0xff) 3815 return (((uint64_t)RPL_LUNDATA_ATYP_PERIPH << 56) | (l << 48)); 3816 if (l <= 0x3fff) 3817 return (((uint64_t)RPL_LUNDATA_ATYP_FLAT << 56) | (l << 48)); 3818 if (l <= 0xffffff) 3819 return (((uint64_t)(RPL_LUNDATA_ATYP_EXTLUN | 0x12) << 56) | 3820 (l << 32)); 3821 return ((((uint64_t)RPL_LUNDATA_ATYP_EXTLUN | 0x22) << 56) | (l << 16)); 3822 } 3823 3824 int 3825 ctl_ffz(uint32_t *mask, uint32_t first, uint32_t last) 3826 { 3827 int i; 3828 3829 for (i = first; i < last; i++) { 3830 if ((mask[i / 32] & (1 << (i % 32))) == 0) 3831 return (i); 3832 } 3833 return (-1); 3834 } 3835 3836 int 3837 ctl_set_mask(uint32_t *mask, uint32_t bit) 3838 { 3839 uint32_t chunk, piece; 3840 3841 chunk = bit >> 5; 3842 piece = bit % (sizeof(uint32_t) * 8); 3843 3844 if ((mask[chunk] & (1 << piece)) != 0) 3845 return (-1); 3846 else 3847 mask[chunk] |= (1 << piece); 3848 3849 return (0); 3850 } 3851 3852 int 3853 ctl_clear_mask(uint32_t *mask, uint32_t bit) 3854 { 3855 uint32_t chunk, piece; 3856 3857 chunk = bit >> 5; 3858 piece = bit % (sizeof(uint32_t) * 8); 3859 3860 if ((mask[chunk] & (1 << piece)) == 0) 3861 return (-1); 3862 else 3863 mask[chunk] &= ~(1 << piece); 3864 3865 return (0); 3866 } 3867 3868 int 3869 ctl_is_set(uint32_t *mask, uint32_t bit) 3870 { 3871 uint32_t chunk, piece; 3872 3873 chunk = bit >> 5; 3874 piece = bit % (sizeof(uint32_t) * 8); 3875 3876 if ((mask[chunk] & (1 << piece)) == 0) 3877 return (0); 3878 else 3879 return (1); 3880 } 3881 3882 static uint64_t 3883 ctl_get_prkey(struct ctl_lun *lun, uint32_t residx) 3884 { 3885 uint64_t *t; 3886 3887 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3888 if (t == NULL) 3889 return (0); 3890 return (t[residx % CTL_MAX_INIT_PER_PORT]); 3891 } 3892 3893 static void 3894 ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx) 3895 { 3896 uint64_t *t; 3897 3898 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3899 if (t == NULL) 3900 return; 3901 t[residx % CTL_MAX_INIT_PER_PORT] = 0; 3902 } 3903 3904 static void 3905 ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx) 3906 { 3907 uint64_t *p; 3908 u_int i; 3909 3910 i = residx/CTL_MAX_INIT_PER_PORT; 3911 if (lun->pr_keys[i] != NULL) 3912 return; 3913 mtx_unlock(&lun->lun_lock); 3914 p = malloc(sizeof(uint64_t) * CTL_MAX_INIT_PER_PORT, M_CTL, 3915 M_WAITOK | M_ZERO); 3916 mtx_lock(&lun->lun_lock); 3917 if (lun->pr_keys[i] == NULL) 3918 lun->pr_keys[i] = p; 3919 else 3920 free(p, M_CTL); 3921 } 3922 3923 static void 3924 ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key) 3925 { 3926 uint64_t *t; 3927 3928 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3929 KASSERT(t != NULL, ("prkey %d is not allocated", residx)); 3930 t[residx % CTL_MAX_INIT_PER_PORT] = key; 3931 } 3932 3933 /* 3934 * ctl_softc, pool_name, total_ctl_io are passed in. 3935 * npool is passed out. 3936 */ 3937 int 3938 ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name, 3939 uint32_t total_ctl_io, void **npool) 3940 { 3941 struct ctl_io_pool *pool; 3942 3943 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3944 M_NOWAIT | M_ZERO); 3945 if (pool == NULL) 3946 return (ENOMEM); 3947 3948 snprintf(pool->name, sizeof(pool->name), "CTL IO %s", pool_name); 3949 pool->ctl_softc = ctl_softc; 3950 #ifdef IO_POOLS 3951 pool->zone = uma_zsecond_create(pool->name, NULL, 3952 NULL, NULL, NULL, ctl_softc->io_zone); 3953 /* uma_prealloc(pool->zone, total_ctl_io); */ 3954 #else 3955 pool->zone = ctl_softc->io_zone; 3956 #endif 3957 3958 *npool = pool; 3959 return (0); 3960 } 3961 3962 void 3963 ctl_pool_free(struct ctl_io_pool *pool) 3964 { 3965 3966 if (pool == NULL) 3967 return; 3968 3969 #ifdef IO_POOLS 3970 uma_zdestroy(pool->zone); 3971 #endif 3972 free(pool, M_CTL); 3973 } 3974 3975 union ctl_io * 3976 ctl_alloc_io(void *pool_ref) 3977 { 3978 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3979 union ctl_io *io; 3980 3981 io = uma_zalloc(pool->zone, M_WAITOK); 3982 if (io != NULL) { 3983 io->io_hdr.pool = pool_ref; 3984 CTL_SOFTC(io) = pool->ctl_softc; 3985 TAILQ_INIT(&io->io_hdr.blocked_queue); 3986 } 3987 return (io); 3988 } 3989 3990 union ctl_io * 3991 ctl_alloc_io_nowait(void *pool_ref) 3992 { 3993 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3994 union ctl_io *io; 3995 3996 io = uma_zalloc(pool->zone, M_NOWAIT); 3997 if (io != NULL) { 3998 io->io_hdr.pool = pool_ref; 3999 CTL_SOFTC(io) = pool->ctl_softc; 4000 TAILQ_INIT(&io->io_hdr.blocked_queue); 4001 } 4002 return (io); 4003 } 4004 4005 void 4006 ctl_free_io(union ctl_io *io) 4007 { 4008 struct ctl_io_pool *pool; 4009 4010 if (io == NULL) 4011 return; 4012 4013 pool = (struct ctl_io_pool *)io->io_hdr.pool; 4014 uma_zfree(pool->zone, io); 4015 } 4016 4017 void 4018 ctl_zero_io(union ctl_io *io) 4019 { 4020 struct ctl_io_pool *pool; 4021 4022 if (io == NULL) 4023 return; 4024 4025 /* 4026 * May need to preserve linked list pointers at some point too. 4027 */ 4028 pool = io->io_hdr.pool; 4029 memset(io, 0, sizeof(*io)); 4030 io->io_hdr.pool = pool; 4031 CTL_SOFTC(io) = pool->ctl_softc; 4032 TAILQ_INIT(&io->io_hdr.blocked_queue); 4033 } 4034 4035 int 4036 ctl_expand_number(const char *buf, uint64_t *num) 4037 { 4038 char *endptr; 4039 uint64_t number; 4040 unsigned shift; 4041 4042 number = strtoq(buf, &endptr, 0); 4043 4044 switch (tolower((unsigned char)*endptr)) { 4045 case 'e': 4046 shift = 60; 4047 break; 4048 case 'p': 4049 shift = 50; 4050 break; 4051 case 't': 4052 shift = 40; 4053 break; 4054 case 'g': 4055 shift = 30; 4056 break; 4057 case 'm': 4058 shift = 20; 4059 break; 4060 case 'k': 4061 shift = 10; 4062 break; 4063 case 'b': 4064 case '\0': /* No unit. */ 4065 *num = number; 4066 return (0); 4067 default: 4068 /* Unrecognized unit. */ 4069 return (-1); 4070 } 4071 4072 if ((number << shift) >> shift != number) { 4073 /* Overflow */ 4074 return (-1); 4075 } 4076 *num = number << shift; 4077 return (0); 4078 } 4079 4080 /* 4081 * This routine could be used in the future to load default and/or saved 4082 * mode page parameters for a particuar lun. 4083 */ 4084 static int 4085 ctl_init_page_index(struct ctl_lun *lun) 4086 { 4087 int i, page_code; 4088 struct ctl_page_index *page_index; 4089 const char *value; 4090 uint64_t ival; 4091 4092 memcpy(&lun->mode_pages.index, page_index_template, 4093 sizeof(page_index_template)); 4094 4095 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 4096 page_index = &lun->mode_pages.index[i]; 4097 if (lun->be_lun->lun_type == T_DIRECT && 4098 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 4099 continue; 4100 if (lun->be_lun->lun_type == T_PROCESSOR && 4101 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 4102 continue; 4103 if (lun->be_lun->lun_type == T_CDROM && 4104 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 4105 continue; 4106 4107 page_code = page_index->page_code & SMPH_PC_MASK; 4108 switch (page_code) { 4109 case SMS_RW_ERROR_RECOVERY_PAGE: { 4110 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4111 ("subpage %#x for page %#x is incorrect!", 4112 page_index->subpage, page_code)); 4113 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 4114 &rw_er_page_default, 4115 sizeof(rw_er_page_default)); 4116 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 4117 &rw_er_page_changeable, 4118 sizeof(rw_er_page_changeable)); 4119 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 4120 &rw_er_page_default, 4121 sizeof(rw_er_page_default)); 4122 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 4123 &rw_er_page_default, 4124 sizeof(rw_er_page_default)); 4125 page_index->page_data = 4126 (uint8_t *)lun->mode_pages.rw_er_page; 4127 break; 4128 } 4129 case SMS_FORMAT_DEVICE_PAGE: { 4130 struct scsi_format_page *format_page; 4131 4132 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4133 ("subpage %#x for page %#x is incorrect!", 4134 page_index->subpage, page_code)); 4135 4136 /* 4137 * Sectors per track are set above. Bytes per 4138 * sector need to be set here on a per-LUN basis. 4139 */ 4140 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 4141 &format_page_default, 4142 sizeof(format_page_default)); 4143 memcpy(&lun->mode_pages.format_page[ 4144 CTL_PAGE_CHANGEABLE], &format_page_changeable, 4145 sizeof(format_page_changeable)); 4146 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 4147 &format_page_default, 4148 sizeof(format_page_default)); 4149 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 4150 &format_page_default, 4151 sizeof(format_page_default)); 4152 4153 format_page = &lun->mode_pages.format_page[ 4154 CTL_PAGE_CURRENT]; 4155 scsi_ulto2b(lun->be_lun->blocksize, 4156 format_page->bytes_per_sector); 4157 4158 format_page = &lun->mode_pages.format_page[ 4159 CTL_PAGE_DEFAULT]; 4160 scsi_ulto2b(lun->be_lun->blocksize, 4161 format_page->bytes_per_sector); 4162 4163 format_page = &lun->mode_pages.format_page[ 4164 CTL_PAGE_SAVED]; 4165 scsi_ulto2b(lun->be_lun->blocksize, 4166 format_page->bytes_per_sector); 4167 4168 page_index->page_data = 4169 (uint8_t *)lun->mode_pages.format_page; 4170 break; 4171 } 4172 case SMS_RIGID_DISK_PAGE: { 4173 struct scsi_rigid_disk_page *rigid_disk_page; 4174 uint32_t sectors_per_cylinder; 4175 uint64_t cylinders; 4176 #ifndef __XSCALE__ 4177 int shift; 4178 #endif /* !__XSCALE__ */ 4179 4180 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4181 ("subpage %#x for page %#x is incorrect!", 4182 page_index->subpage, page_code)); 4183 4184 /* 4185 * Rotation rate and sectors per track are set 4186 * above. We calculate the cylinders here based on 4187 * capacity. Due to the number of heads and 4188 * sectors per track we're using, smaller arrays 4189 * may turn out to have 0 cylinders. Linux and 4190 * FreeBSD don't pay attention to these mode pages 4191 * to figure out capacity, but Solaris does. It 4192 * seems to deal with 0 cylinders just fine, and 4193 * works out a fake geometry based on the capacity. 4194 */ 4195 memcpy(&lun->mode_pages.rigid_disk_page[ 4196 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4197 sizeof(rigid_disk_page_default)); 4198 memcpy(&lun->mode_pages.rigid_disk_page[ 4199 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4200 sizeof(rigid_disk_page_changeable)); 4201 4202 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4203 CTL_DEFAULT_HEADS; 4204 4205 /* 4206 * The divide method here will be more accurate, 4207 * probably, but results in floating point being 4208 * used in the kernel on i386 (__udivdi3()). On the 4209 * XScale, though, __udivdi3() is implemented in 4210 * software. 4211 * 4212 * The shift method for cylinder calculation is 4213 * accurate if sectors_per_cylinder is a power of 4214 * 2. Otherwise it might be slightly off -- you 4215 * might have a bit of a truncation problem. 4216 */ 4217 #ifdef __XSCALE__ 4218 cylinders = (lun->be_lun->maxlba + 1) / 4219 sectors_per_cylinder; 4220 #else 4221 for (shift = 31; shift > 0; shift--) { 4222 if (sectors_per_cylinder & (1 << shift)) 4223 break; 4224 } 4225 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4226 #endif 4227 4228 /* 4229 * We've basically got 3 bytes, or 24 bits for the 4230 * cylinder size in the mode page. If we're over, 4231 * just round down to 2^24. 4232 */ 4233 if (cylinders > 0xffffff) 4234 cylinders = 0xffffff; 4235 4236 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4237 CTL_PAGE_DEFAULT]; 4238 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4239 4240 if ((value = dnvlist_get_string(lun->be_lun->options, 4241 "rpm", NULL)) != NULL) { 4242 scsi_ulto2b(strtol(value, NULL, 0), 4243 rigid_disk_page->rotation_rate); 4244 } 4245 4246 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 4247 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4248 sizeof(rigid_disk_page_default)); 4249 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 4250 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4251 sizeof(rigid_disk_page_default)); 4252 4253 page_index->page_data = 4254 (uint8_t *)lun->mode_pages.rigid_disk_page; 4255 break; 4256 } 4257 case SMS_VERIFY_ERROR_RECOVERY_PAGE: { 4258 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4259 ("subpage %#x for page %#x is incorrect!", 4260 page_index->subpage, page_code)); 4261 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_CURRENT], 4262 &verify_er_page_default, 4263 sizeof(verify_er_page_default)); 4264 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_CHANGEABLE], 4265 &verify_er_page_changeable, 4266 sizeof(verify_er_page_changeable)); 4267 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_DEFAULT], 4268 &verify_er_page_default, 4269 sizeof(verify_er_page_default)); 4270 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_SAVED], 4271 &verify_er_page_default, 4272 sizeof(verify_er_page_default)); 4273 page_index->page_data = 4274 (uint8_t *)lun->mode_pages.verify_er_page; 4275 break; 4276 } 4277 case SMS_CACHING_PAGE: { 4278 struct scsi_caching_page *caching_page; 4279 4280 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4281 ("subpage %#x for page %#x is incorrect!", 4282 page_index->subpage, page_code)); 4283 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4284 &caching_page_default, 4285 sizeof(caching_page_default)); 4286 memcpy(&lun->mode_pages.caching_page[ 4287 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4288 sizeof(caching_page_changeable)); 4289 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4290 &caching_page_default, 4291 sizeof(caching_page_default)); 4292 caching_page = &lun->mode_pages.caching_page[ 4293 CTL_PAGE_SAVED]; 4294 value = dnvlist_get_string(lun->be_lun->options, 4295 "writecache", NULL); 4296 if (value != NULL && strcmp(value, "off") == 0) 4297 caching_page->flags1 &= ~SCP_WCE; 4298 value = dnvlist_get_string(lun->be_lun->options, 4299 "readcache", NULL); 4300 if (value != NULL && strcmp(value, "off") == 0) 4301 caching_page->flags1 |= SCP_RCD; 4302 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4303 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4304 sizeof(caching_page_default)); 4305 page_index->page_data = 4306 (uint8_t *)lun->mode_pages.caching_page; 4307 break; 4308 } 4309 case SMS_CONTROL_MODE_PAGE: { 4310 switch (page_index->subpage) { 4311 case SMS_SUBPAGE_PAGE_0: { 4312 struct scsi_control_page *control_page; 4313 4314 memcpy(&lun->mode_pages.control_page[ 4315 CTL_PAGE_DEFAULT], 4316 &control_page_default, 4317 sizeof(control_page_default)); 4318 memcpy(&lun->mode_pages.control_page[ 4319 CTL_PAGE_CHANGEABLE], 4320 &control_page_changeable, 4321 sizeof(control_page_changeable)); 4322 memcpy(&lun->mode_pages.control_page[ 4323 CTL_PAGE_SAVED], 4324 &control_page_default, 4325 sizeof(control_page_default)); 4326 control_page = &lun->mode_pages.control_page[ 4327 CTL_PAGE_SAVED]; 4328 value = dnvlist_get_string(lun->be_lun->options, 4329 "reordering", NULL); 4330 if (value != NULL && 4331 strcmp(value, "unrestricted") == 0) { 4332 control_page->queue_flags &= 4333 ~SCP_QUEUE_ALG_MASK; 4334 control_page->queue_flags |= 4335 SCP_QUEUE_ALG_UNRESTRICTED; 4336 } 4337 memcpy(&lun->mode_pages.control_page[ 4338 CTL_PAGE_CURRENT], 4339 &lun->mode_pages.control_page[ 4340 CTL_PAGE_SAVED], 4341 sizeof(control_page_default)); 4342 page_index->page_data = 4343 (uint8_t *)lun->mode_pages.control_page; 4344 break; 4345 } 4346 case 0x01: 4347 memcpy(&lun->mode_pages.control_ext_page[ 4348 CTL_PAGE_DEFAULT], 4349 &control_ext_page_default, 4350 sizeof(control_ext_page_default)); 4351 memcpy(&lun->mode_pages.control_ext_page[ 4352 CTL_PAGE_CHANGEABLE], 4353 &control_ext_page_changeable, 4354 sizeof(control_ext_page_changeable)); 4355 memcpy(&lun->mode_pages.control_ext_page[ 4356 CTL_PAGE_SAVED], 4357 &control_ext_page_default, 4358 sizeof(control_ext_page_default)); 4359 memcpy(&lun->mode_pages.control_ext_page[ 4360 CTL_PAGE_CURRENT], 4361 &lun->mode_pages.control_ext_page[ 4362 CTL_PAGE_SAVED], 4363 sizeof(control_ext_page_default)); 4364 page_index->page_data = 4365 (uint8_t *)lun->mode_pages.control_ext_page; 4366 break; 4367 default: 4368 panic("subpage %#x for page %#x is incorrect!", 4369 page_index->subpage, page_code); 4370 } 4371 break; 4372 } 4373 case SMS_INFO_EXCEPTIONS_PAGE: { 4374 switch (page_index->subpage) { 4375 case SMS_SUBPAGE_PAGE_0: 4376 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 4377 &ie_page_default, 4378 sizeof(ie_page_default)); 4379 memcpy(&lun->mode_pages.ie_page[ 4380 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 4381 sizeof(ie_page_changeable)); 4382 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 4383 &ie_page_default, 4384 sizeof(ie_page_default)); 4385 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 4386 &ie_page_default, 4387 sizeof(ie_page_default)); 4388 page_index->page_data = 4389 (uint8_t *)lun->mode_pages.ie_page; 4390 break; 4391 case 0x02: { 4392 struct ctl_logical_block_provisioning_page *page; 4393 4394 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 4395 &lbp_page_default, 4396 sizeof(lbp_page_default)); 4397 memcpy(&lun->mode_pages.lbp_page[ 4398 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 4399 sizeof(lbp_page_changeable)); 4400 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4401 &lbp_page_default, 4402 sizeof(lbp_page_default)); 4403 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 4404 value = dnvlist_get_string(lun->be_lun->options, 4405 "avail-threshold", NULL); 4406 if (value != NULL && 4407 ctl_expand_number(value, &ival) == 0) { 4408 page->descr[0].flags |= SLBPPD_ENABLED | 4409 SLBPPD_ARMING_DEC; 4410 if (lun->be_lun->blocksize) 4411 ival /= lun->be_lun->blocksize; 4412 else 4413 ival /= 512; 4414 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4415 page->descr[0].count); 4416 } 4417 value = dnvlist_get_string(lun->be_lun->options, 4418 "used-threshold", NULL); 4419 if (value != NULL && 4420 ctl_expand_number(value, &ival) == 0) { 4421 page->descr[1].flags |= SLBPPD_ENABLED | 4422 SLBPPD_ARMING_INC; 4423 if (lun->be_lun->blocksize) 4424 ival /= lun->be_lun->blocksize; 4425 else 4426 ival /= 512; 4427 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4428 page->descr[1].count); 4429 } 4430 value = dnvlist_get_string(lun->be_lun->options, 4431 "pool-avail-threshold", NULL); 4432 if (value != NULL && 4433 ctl_expand_number(value, &ival) == 0) { 4434 page->descr[2].flags |= SLBPPD_ENABLED | 4435 SLBPPD_ARMING_DEC; 4436 if (lun->be_lun->blocksize) 4437 ival /= lun->be_lun->blocksize; 4438 else 4439 ival /= 512; 4440 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4441 page->descr[2].count); 4442 } 4443 value = dnvlist_get_string(lun->be_lun->options, 4444 "pool-used-threshold", NULL); 4445 if (value != NULL && 4446 ctl_expand_number(value, &ival) == 0) { 4447 page->descr[3].flags |= SLBPPD_ENABLED | 4448 SLBPPD_ARMING_INC; 4449 if (lun->be_lun->blocksize) 4450 ival /= lun->be_lun->blocksize; 4451 else 4452 ival /= 512; 4453 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4454 page->descr[3].count); 4455 } 4456 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 4457 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4458 sizeof(lbp_page_default)); 4459 page_index->page_data = 4460 (uint8_t *)lun->mode_pages.lbp_page; 4461 break; 4462 } 4463 default: 4464 panic("subpage %#x for page %#x is incorrect!", 4465 page_index->subpage, page_code); 4466 } 4467 break; 4468 } 4469 case SMS_CDDVD_CAPS_PAGE:{ 4470 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4471 ("subpage %#x for page %#x is incorrect!", 4472 page_index->subpage, page_code)); 4473 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_DEFAULT], 4474 &cddvd_page_default, 4475 sizeof(cddvd_page_default)); 4476 memcpy(&lun->mode_pages.cddvd_page[ 4477 CTL_PAGE_CHANGEABLE], &cddvd_page_changeable, 4478 sizeof(cddvd_page_changeable)); 4479 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4480 &cddvd_page_default, 4481 sizeof(cddvd_page_default)); 4482 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_CURRENT], 4483 &lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4484 sizeof(cddvd_page_default)); 4485 page_index->page_data = 4486 (uint8_t *)lun->mode_pages.cddvd_page; 4487 break; 4488 } 4489 default: 4490 panic("invalid page code value %#x", page_code); 4491 } 4492 } 4493 4494 return (CTL_RETVAL_COMPLETE); 4495 } 4496 4497 static int 4498 ctl_init_log_page_index(struct ctl_lun *lun) 4499 { 4500 struct ctl_page_index *page_index; 4501 int i, j, k, prev; 4502 4503 memcpy(&lun->log_pages.index, log_page_index_template, 4504 sizeof(log_page_index_template)); 4505 4506 prev = -1; 4507 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4508 page_index = &lun->log_pages.index[i]; 4509 if (lun->be_lun->lun_type == T_DIRECT && 4510 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 4511 continue; 4512 if (lun->be_lun->lun_type == T_PROCESSOR && 4513 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 4514 continue; 4515 if (lun->be_lun->lun_type == T_CDROM && 4516 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 4517 continue; 4518 4519 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4520 lun->backend->lun_attr == NULL) 4521 continue; 4522 4523 if (page_index->page_code != prev) { 4524 lun->log_pages.pages_page[j] = page_index->page_code; 4525 prev = page_index->page_code; 4526 j++; 4527 } 4528 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4529 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4530 k++; 4531 } 4532 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4533 lun->log_pages.index[0].page_len = j; 4534 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4535 lun->log_pages.index[1].page_len = k * 2; 4536 lun->log_pages.index[2].page_data = (uint8_t *)&lun->log_pages.temp_page; 4537 lun->log_pages.index[2].page_len = sizeof(lun->log_pages.temp_page); 4538 lun->log_pages.index[3].page_data = &lun->log_pages.lbp_page[0]; 4539 lun->log_pages.index[3].page_len = 12*CTL_NUM_LBP_PARAMS; 4540 lun->log_pages.index[4].page_data = (uint8_t *)&lun->log_pages.stat_page; 4541 lun->log_pages.index[4].page_len = sizeof(lun->log_pages.stat_page); 4542 lun->log_pages.index[5].page_data = (uint8_t *)&lun->log_pages.ie_page; 4543 lun->log_pages.index[5].page_len = sizeof(lun->log_pages.ie_page); 4544 4545 return (CTL_RETVAL_COMPLETE); 4546 } 4547 4548 static int 4549 hex2bin(const char *str, uint8_t *buf, int buf_size) 4550 { 4551 int i; 4552 u_char c; 4553 4554 memset(buf, 0, buf_size); 4555 while (isspace(str[0])) 4556 str++; 4557 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4558 str += 2; 4559 buf_size *= 2; 4560 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4561 while (str[i] == '-') /* Skip dashes in UUIDs. */ 4562 str++; 4563 c = str[i]; 4564 if (isdigit(c)) 4565 c -= '0'; 4566 else if (isalpha(c)) 4567 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4568 else 4569 break; 4570 if (c >= 16) 4571 break; 4572 if ((i & 1) == 0) 4573 buf[i / 2] |= (c << 4); 4574 else 4575 buf[i / 2] |= c; 4576 } 4577 return ((i + 1) / 2); 4578 } 4579 4580 /* 4581 * Add LUN. 4582 * 4583 * Returns 0 for success, non-zero (errno) for failure. 4584 */ 4585 int 4586 ctl_add_lun(struct ctl_be_lun *be_lun) 4587 { 4588 struct ctl_softc *ctl_softc = control_softc; 4589 struct ctl_lun *nlun, *lun; 4590 struct scsi_vpd_id_descriptor *desc; 4591 struct scsi_vpd_id_t10 *t10id; 4592 const char *eui, *naa, *scsiname, *uuid, *vendor, *value; 4593 int lun_number; 4594 int devidlen, idlen1, idlen2 = 0, len; 4595 4596 /* 4597 * We support only Direct Access, CD-ROM or Processor LUN types. 4598 */ 4599 switch (be_lun->lun_type) { 4600 case T_DIRECT: 4601 case T_PROCESSOR: 4602 case T_CDROM: 4603 break; 4604 case T_SEQUENTIAL: 4605 case T_CHANGER: 4606 default: 4607 return (EINVAL); 4608 } 4609 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK | M_ZERO); 4610 4611 lun->pending_sense = malloc(sizeof(struct scsi_sense_data *) * 4612 ctl_max_ports, M_DEVBUF, M_WAITOK | M_ZERO); 4613 lun->pending_ua = malloc(sizeof(ctl_ua_type *) * ctl_max_ports, 4614 M_DEVBUF, M_WAITOK | M_ZERO); 4615 lun->pr_keys = malloc(sizeof(uint64_t *) * ctl_max_ports, 4616 M_DEVBUF, M_WAITOK | M_ZERO); 4617 4618 /* Generate LUN ID. */ 4619 devidlen = max(CTL_DEVID_MIN_LEN, 4620 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4621 idlen1 = sizeof(*t10id) + devidlen; 4622 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4623 scsiname = dnvlist_get_string(be_lun->options, "scsiname", NULL); 4624 if (scsiname != NULL) { 4625 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4626 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4627 } 4628 eui = dnvlist_get_string(be_lun->options, "eui", NULL); 4629 if (eui != NULL) { 4630 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4631 } 4632 naa = dnvlist_get_string(be_lun->options, "naa", NULL); 4633 if (naa != NULL) { 4634 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4635 } 4636 uuid = dnvlist_get_string(be_lun->options, "uuid", NULL); 4637 if (uuid != NULL) { 4638 len += sizeof(struct scsi_vpd_id_descriptor) + 18; 4639 } 4640 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4641 M_CTL, M_WAITOK | M_ZERO); 4642 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4643 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4644 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4645 desc->length = idlen1; 4646 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4647 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4648 if ((vendor = dnvlist_get_string(be_lun->options, "vendor", NULL)) == NULL) { 4649 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4650 } else { 4651 strncpy(t10id->vendor, vendor, 4652 min(sizeof(t10id->vendor), strlen(vendor))); 4653 } 4654 strncpy((char *)t10id->vendor_spec_id, 4655 (char *)be_lun->device_id, devidlen); 4656 if (scsiname != NULL) { 4657 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4658 desc->length); 4659 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4660 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4661 SVPD_ID_TYPE_SCSI_NAME; 4662 desc->length = idlen2; 4663 strlcpy(desc->identifier, scsiname, idlen2); 4664 } 4665 if (eui != NULL) { 4666 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4667 desc->length); 4668 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4669 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4670 SVPD_ID_TYPE_EUI64; 4671 desc->length = hex2bin(eui, desc->identifier, 16); 4672 desc->length = desc->length > 12 ? 16 : 4673 (desc->length > 8 ? 12 : 8); 4674 len -= 16 - desc->length; 4675 } 4676 if (naa != NULL) { 4677 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4678 desc->length); 4679 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4680 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4681 SVPD_ID_TYPE_NAA; 4682 desc->length = hex2bin(naa, desc->identifier, 16); 4683 desc->length = desc->length > 8 ? 16 : 8; 4684 len -= 16 - desc->length; 4685 } 4686 if (uuid != NULL) { 4687 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4688 desc->length); 4689 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4690 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4691 SVPD_ID_TYPE_UUID; 4692 desc->identifier[0] = 0x10; 4693 hex2bin(uuid, &desc->identifier[2], 16); 4694 desc->length = 18; 4695 } 4696 lun->lun_devid->len = len; 4697 4698 mtx_lock(&ctl_softc->ctl_lock); 4699 /* 4700 * See if the caller requested a particular LUN number. If so, see 4701 * if it is available. Otherwise, allocate the first available LUN. 4702 */ 4703 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4704 if ((be_lun->req_lun_id > (ctl_max_luns - 1)) 4705 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4706 mtx_unlock(&ctl_softc->ctl_lock); 4707 if (be_lun->req_lun_id > (ctl_max_luns - 1)) { 4708 printf("ctl: requested LUN ID %d is higher " 4709 "than ctl_max_luns - 1 (%d)\n", 4710 be_lun->req_lun_id, ctl_max_luns - 1); 4711 } else { 4712 /* 4713 * XXX KDM return an error, or just assign 4714 * another LUN ID in this case?? 4715 */ 4716 printf("ctl: requested LUN ID %d is already " 4717 "in use\n", be_lun->req_lun_id); 4718 } 4719 fail: 4720 free(lun->lun_devid, M_CTL); 4721 free(lun, M_CTL); 4722 return (ENOSPC); 4723 } 4724 lun_number = be_lun->req_lun_id; 4725 } else { 4726 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, 0, ctl_max_luns); 4727 if (lun_number == -1) { 4728 mtx_unlock(&ctl_softc->ctl_lock); 4729 printf("ctl: can't allocate LUN, out of LUNs\n"); 4730 goto fail; 4731 } 4732 } 4733 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4734 mtx_unlock(&ctl_softc->ctl_lock); 4735 4736 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4737 lun->lun = lun_number; 4738 lun->be_lun = be_lun; 4739 /* 4740 * The processor LUN is always enabled. Disk LUNs come on line 4741 * disabled, and must be enabled by the backend. 4742 */ 4743 lun->flags |= CTL_LUN_DISABLED; 4744 lun->backend = be_lun->be; 4745 be_lun->ctl_lun = lun; 4746 be_lun->lun_id = lun_number; 4747 if (be_lun->flags & CTL_LUN_FLAG_EJECTED) 4748 lun->flags |= CTL_LUN_EJECTED; 4749 if (be_lun->flags & CTL_LUN_FLAG_NO_MEDIA) 4750 lun->flags |= CTL_LUN_NO_MEDIA; 4751 if (be_lun->flags & CTL_LUN_FLAG_STOPPED) 4752 lun->flags |= CTL_LUN_STOPPED; 4753 4754 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4755 lun->flags |= CTL_LUN_PRIMARY_SC; 4756 4757 value = dnvlist_get_string(be_lun->options, "removable", NULL); 4758 if (value != NULL) { 4759 if (strcmp(value, "on") == 0) 4760 lun->flags |= CTL_LUN_REMOVABLE; 4761 } else if (be_lun->lun_type == T_CDROM) 4762 lun->flags |= CTL_LUN_REMOVABLE; 4763 4764 lun->ctl_softc = ctl_softc; 4765 #ifdef CTL_TIME_IO 4766 lun->last_busy = getsbinuptime(); 4767 #endif 4768 LIST_INIT(&lun->ooa_queue); 4769 STAILQ_INIT(&lun->error_list); 4770 lun->ie_reported = 1; 4771 callout_init_mtx(&lun->ie_callout, &lun->lun_lock, 0); 4772 ctl_tpc_lun_init(lun); 4773 if (lun->flags & CTL_LUN_REMOVABLE) { 4774 lun->prevent = malloc((CTL_MAX_INITIATORS + 31) / 32 * 4, 4775 M_CTL, M_WAITOK); 4776 } 4777 4778 /* 4779 * Initialize the mode and log page index. 4780 */ 4781 ctl_init_page_index(lun); 4782 ctl_init_log_page_index(lun); 4783 4784 /* Setup statistics gathering */ 4785 lun->stats.item = lun_number; 4786 4787 /* 4788 * Now, before we insert this lun on the lun list, set the lun 4789 * inventory changed UA for all other luns. 4790 */ 4791 mtx_lock(&ctl_softc->ctl_lock); 4792 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4793 mtx_lock(&nlun->lun_lock); 4794 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4795 mtx_unlock(&nlun->lun_lock); 4796 } 4797 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4798 ctl_softc->ctl_luns[lun_number] = lun; 4799 ctl_softc->num_luns++; 4800 mtx_unlock(&ctl_softc->ctl_lock); 4801 4802 /* 4803 * We successfully added the LUN, attempt to enable it. 4804 */ 4805 if (ctl_enable_lun(lun) != 0) { 4806 printf("%s: ctl_enable_lun() failed!\n", __func__); 4807 mtx_lock(&ctl_softc->ctl_lock); 4808 STAILQ_REMOVE(&ctl_softc->lun_list, lun, ctl_lun, links); 4809 ctl_clear_mask(ctl_softc->ctl_lun_mask, lun_number); 4810 ctl_softc->ctl_luns[lun_number] = NULL; 4811 ctl_softc->num_luns--; 4812 mtx_unlock(&ctl_softc->ctl_lock); 4813 free(lun->lun_devid, M_CTL); 4814 free(lun, M_CTL); 4815 return (EIO); 4816 } 4817 4818 return (0); 4819 } 4820 4821 /* 4822 * Free LUN that has no active requests. 4823 */ 4824 static int 4825 ctl_free_lun(struct ctl_lun *lun) 4826 { 4827 struct ctl_softc *softc = lun->ctl_softc; 4828 struct ctl_lun *nlun; 4829 int i; 4830 4831 KASSERT(LIST_EMPTY(&lun->ooa_queue), 4832 ("Freeing a LUN %p with outstanding I/O!\n", lun)); 4833 4834 mtx_lock(&softc->ctl_lock); 4835 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4836 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4837 softc->ctl_luns[lun->lun] = NULL; 4838 softc->num_luns--; 4839 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4840 mtx_lock(&nlun->lun_lock); 4841 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4842 mtx_unlock(&nlun->lun_lock); 4843 } 4844 mtx_unlock(&softc->ctl_lock); 4845 4846 /* 4847 * Tell the backend to free resources, if this LUN has a backend. 4848 */ 4849 lun->be_lun->lun_shutdown(lun->be_lun); 4850 4851 lun->ie_reportcnt = UINT32_MAX; 4852 callout_drain(&lun->ie_callout); 4853 ctl_tpc_lun_shutdown(lun); 4854 mtx_destroy(&lun->lun_lock); 4855 free(lun->lun_devid, M_CTL); 4856 for (i = 0; i < ctl_max_ports; i++) 4857 free(lun->pending_ua[i], M_CTL); 4858 free(lun->pending_ua, M_DEVBUF); 4859 for (i = 0; i < ctl_max_ports; i++) 4860 free(lun->pr_keys[i], M_CTL); 4861 free(lun->pr_keys, M_DEVBUF); 4862 free(lun->write_buffer, M_CTL); 4863 free(lun->prevent, M_CTL); 4864 free(lun, M_CTL); 4865 4866 return (0); 4867 } 4868 4869 static int 4870 ctl_enable_lun(struct ctl_lun *lun) 4871 { 4872 struct ctl_softc *softc; 4873 struct ctl_port *port, *nport; 4874 int retval; 4875 4876 softc = lun->ctl_softc; 4877 4878 mtx_lock(&softc->ctl_lock); 4879 mtx_lock(&lun->lun_lock); 4880 KASSERT((lun->flags & CTL_LUN_DISABLED) != 0, 4881 ("%s: LUN not disabled", __func__)); 4882 lun->flags &= ~CTL_LUN_DISABLED; 4883 mtx_unlock(&lun->lun_lock); 4884 4885 STAILQ_FOREACH_SAFE(port, &softc->port_list, links, nport) { 4886 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4887 port->lun_map != NULL || port->lun_enable == NULL) 4888 continue; 4889 4890 /* 4891 * Drop the lock while we call the FETD's enable routine. 4892 * This can lead to a callback into CTL (at least in the 4893 * case of the internal initiator frontend. 4894 */ 4895 mtx_unlock(&softc->ctl_lock); 4896 retval = port->lun_enable(port->targ_lun_arg, lun->lun); 4897 mtx_lock(&softc->ctl_lock); 4898 if (retval != 0) { 4899 printf("%s: FETD %s port %d returned error " 4900 "%d for lun_enable on lun %jd\n", 4901 __func__, port->port_name, port->targ_port, 4902 retval, (intmax_t)lun->lun); 4903 } 4904 } 4905 4906 mtx_unlock(&softc->ctl_lock); 4907 ctl_isc_announce_lun(lun); 4908 4909 return (0); 4910 } 4911 4912 static int 4913 ctl_disable_lun(struct ctl_lun *lun) 4914 { 4915 struct ctl_softc *softc; 4916 struct ctl_port *port; 4917 int retval; 4918 4919 softc = lun->ctl_softc; 4920 4921 mtx_lock(&softc->ctl_lock); 4922 mtx_lock(&lun->lun_lock); 4923 KASSERT((lun->flags & CTL_LUN_DISABLED) == 0, 4924 ("%s: LUN not enabled", __func__)); 4925 lun->flags |= CTL_LUN_DISABLED; 4926 mtx_unlock(&lun->lun_lock); 4927 4928 STAILQ_FOREACH(port, &softc->port_list, links) { 4929 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4930 port->lun_map != NULL || port->lun_disable == NULL) 4931 continue; 4932 4933 /* 4934 * Drop the lock before we call the frontend's disable 4935 * routine, to avoid lock order reversals. 4936 * 4937 * XXX KDM what happens if the frontend list changes while 4938 * we're traversing it? It's unlikely, but should be handled. 4939 */ 4940 mtx_unlock(&softc->ctl_lock); 4941 retval = port->lun_disable(port->targ_lun_arg, lun->lun); 4942 mtx_lock(&softc->ctl_lock); 4943 if (retval != 0) { 4944 printf("%s: FETD %s port %d returned error " 4945 "%d for lun_disable on lun %jd\n", 4946 __func__, port->port_name, port->targ_port, 4947 retval, (intmax_t)lun->lun); 4948 } 4949 } 4950 4951 mtx_unlock(&softc->ctl_lock); 4952 ctl_isc_announce_lun(lun); 4953 4954 return (0); 4955 } 4956 4957 int 4958 ctl_start_lun(struct ctl_be_lun *be_lun) 4959 { 4960 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4961 4962 mtx_lock(&lun->lun_lock); 4963 lun->flags &= ~CTL_LUN_STOPPED; 4964 mtx_unlock(&lun->lun_lock); 4965 return (0); 4966 } 4967 4968 int 4969 ctl_stop_lun(struct ctl_be_lun *be_lun) 4970 { 4971 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4972 4973 mtx_lock(&lun->lun_lock); 4974 lun->flags |= CTL_LUN_STOPPED; 4975 mtx_unlock(&lun->lun_lock); 4976 return (0); 4977 } 4978 4979 int 4980 ctl_lun_no_media(struct ctl_be_lun *be_lun) 4981 { 4982 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4983 4984 mtx_lock(&lun->lun_lock); 4985 lun->flags |= CTL_LUN_NO_MEDIA; 4986 mtx_unlock(&lun->lun_lock); 4987 return (0); 4988 } 4989 4990 int 4991 ctl_lun_has_media(struct ctl_be_lun *be_lun) 4992 { 4993 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4994 union ctl_ha_msg msg; 4995 4996 mtx_lock(&lun->lun_lock); 4997 lun->flags &= ~(CTL_LUN_NO_MEDIA | CTL_LUN_EJECTED); 4998 if (lun->flags & CTL_LUN_REMOVABLE) 4999 ctl_est_ua_all(lun, -1, CTL_UA_MEDIUM_CHANGE); 5000 mtx_unlock(&lun->lun_lock); 5001 if ((lun->flags & CTL_LUN_REMOVABLE) && 5002 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 5003 bzero(&msg.ua, sizeof(msg.ua)); 5004 msg.hdr.msg_type = CTL_MSG_UA; 5005 msg.hdr.nexus.initid = -1; 5006 msg.hdr.nexus.targ_port = -1; 5007 msg.hdr.nexus.targ_lun = lun->lun; 5008 msg.hdr.nexus.targ_mapped_lun = lun->lun; 5009 msg.ua.ua_all = 1; 5010 msg.ua.ua_set = 1; 5011 msg.ua.ua_type = CTL_UA_MEDIUM_CHANGE; 5012 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 5013 M_WAITOK); 5014 } 5015 return (0); 5016 } 5017 5018 int 5019 ctl_lun_ejected(struct ctl_be_lun *be_lun) 5020 { 5021 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 5022 5023 mtx_lock(&lun->lun_lock); 5024 lun->flags |= CTL_LUN_EJECTED; 5025 mtx_unlock(&lun->lun_lock); 5026 return (0); 5027 } 5028 5029 int 5030 ctl_lun_primary(struct ctl_be_lun *be_lun) 5031 { 5032 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 5033 5034 mtx_lock(&lun->lun_lock); 5035 lun->flags |= CTL_LUN_PRIMARY_SC; 5036 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 5037 mtx_unlock(&lun->lun_lock); 5038 ctl_isc_announce_lun(lun); 5039 return (0); 5040 } 5041 5042 int 5043 ctl_lun_secondary(struct ctl_be_lun *be_lun) 5044 { 5045 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 5046 5047 mtx_lock(&lun->lun_lock); 5048 lun->flags &= ~CTL_LUN_PRIMARY_SC; 5049 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 5050 mtx_unlock(&lun->lun_lock); 5051 ctl_isc_announce_lun(lun); 5052 return (0); 5053 } 5054 5055 /* 5056 * Remove LUN. If there are active requests, wait for completion. 5057 * 5058 * Returns 0 for success, non-zero (errno) for failure. 5059 * Completion is reported to backed via the lun_shutdown() method. 5060 */ 5061 int 5062 ctl_remove_lun(struct ctl_be_lun *be_lun) 5063 { 5064 struct ctl_lun *lun; 5065 5066 lun = (struct ctl_lun *)be_lun->ctl_lun; 5067 5068 ctl_disable_lun(lun); 5069 5070 mtx_lock(&lun->lun_lock); 5071 lun->flags |= CTL_LUN_INVALID; 5072 5073 /* 5074 * If there is nothing in the OOA queue, go ahead and free the LUN. 5075 * If we have something in the OOA queue, we'll free it when the 5076 * last I/O completes. 5077 */ 5078 if (LIST_EMPTY(&lun->ooa_queue)) { 5079 mtx_unlock(&lun->lun_lock); 5080 ctl_free_lun(lun); 5081 } else 5082 mtx_unlock(&lun->lun_lock); 5083 5084 return (0); 5085 } 5086 5087 void 5088 ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5089 { 5090 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 5091 union ctl_ha_msg msg; 5092 5093 mtx_lock(&lun->lun_lock); 5094 ctl_est_ua_all(lun, -1, CTL_UA_CAPACITY_CHANGE); 5095 mtx_unlock(&lun->lun_lock); 5096 if (lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 5097 /* Send msg to other side. */ 5098 bzero(&msg.ua, sizeof(msg.ua)); 5099 msg.hdr.msg_type = CTL_MSG_UA; 5100 msg.hdr.nexus.initid = -1; 5101 msg.hdr.nexus.targ_port = -1; 5102 msg.hdr.nexus.targ_lun = lun->lun; 5103 msg.hdr.nexus.targ_mapped_lun = lun->lun; 5104 msg.ua.ua_all = 1; 5105 msg.ua.ua_set = 1; 5106 msg.ua.ua_type = CTL_UA_CAPACITY_CHANGE; 5107 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 5108 M_WAITOK); 5109 } 5110 } 5111 5112 /* 5113 * Backend "memory move is complete" callback for requests that never 5114 * make it down to say RAIDCore's configuration code. 5115 */ 5116 int 5117 ctl_config_move_done(union ctl_io *io, bool samethr) 5118 { 5119 int retval; 5120 5121 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5122 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 5123 ("%s: unexpected I/O type %x", __func__, io->io_hdr.io_type)); 5124 5125 if (ctl_debug & CTL_DEBUG_CDB_DATA) 5126 ctl_data_print(io); 5127 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 5128 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5129 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 5130 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5131 /* 5132 * XXX KDM just assuming a single pointer here, and not a 5133 * S/G list. If we start using S/G lists for config data, 5134 * we'll need to know how to clean them up here as well. 5135 */ 5136 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5137 free(io->scsiio.kern_data_ptr, M_CTL); 5138 ctl_done(io); 5139 retval = CTL_RETVAL_COMPLETE; 5140 } else { 5141 /* 5142 * XXX KDM now we need to continue data movement. Some 5143 * options: 5144 * - call ctl_scsiio() again? We don't do this for data 5145 * writes, because for those at least we know ahead of 5146 * time where the write will go and how long it is. For 5147 * config writes, though, that information is largely 5148 * contained within the write itself, thus we need to 5149 * parse out the data again. 5150 * 5151 * - Call some other function once the data is in? 5152 */ 5153 5154 /* 5155 * XXX KDM call ctl_scsiio() again for now, and check flag 5156 * bits to see whether we're allocated or not. 5157 */ 5158 retval = ctl_scsiio(&io->scsiio); 5159 } 5160 return (retval); 5161 } 5162 5163 /* 5164 * This gets called by a backend driver when it is done with a 5165 * data_submit method. 5166 */ 5167 void 5168 ctl_data_submit_done(union ctl_io *io) 5169 { 5170 /* 5171 * If the IO_CONT flag is set, we need to call the supplied 5172 * function to continue processing the I/O, instead of completing 5173 * the I/O just yet. 5174 * 5175 * If there is an error, though, we don't want to keep processing. 5176 * Instead, just send status back to the initiator. 5177 */ 5178 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5179 (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 io->scsiio.io_cont(io); 5183 return; 5184 } 5185 ctl_done(io); 5186 } 5187 5188 /* 5189 * This gets called by a backend driver when it is done with a 5190 * configuration write. 5191 */ 5192 void 5193 ctl_config_write_done(union ctl_io *io) 5194 { 5195 uint8_t *buf; 5196 5197 /* 5198 * If the IO_CONT flag is set, we need to call the supplied 5199 * function to continue processing the I/O, instead of completing 5200 * the I/O just yet. 5201 * 5202 * If there is an error, though, we don't want to keep processing. 5203 * Instead, just send status back to the initiator. 5204 */ 5205 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5206 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5207 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5208 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5209 io->scsiio.io_cont(io); 5210 return; 5211 } 5212 /* 5213 * Since a configuration write can be done for commands that actually 5214 * have data allocated, like write buffer, and commands that have 5215 * no data, like start/stop unit, we need to check here. 5216 */ 5217 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5218 buf = io->scsiio.kern_data_ptr; 5219 else 5220 buf = NULL; 5221 ctl_done(io); 5222 if (buf) 5223 free(buf, M_CTL); 5224 } 5225 5226 void 5227 ctl_config_read_done(union ctl_io *io) 5228 { 5229 uint8_t *buf; 5230 5231 /* 5232 * If there is some error -- we are done, skip data transfer. 5233 */ 5234 if ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0 || 5235 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5236 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) { 5237 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5238 buf = io->scsiio.kern_data_ptr; 5239 else 5240 buf = NULL; 5241 ctl_done(io); 5242 if (buf) 5243 free(buf, M_CTL); 5244 return; 5245 } 5246 5247 /* 5248 * If the IO_CONT flag is set, we need to call the supplied 5249 * function to continue processing the I/O, instead of completing 5250 * the I/O just yet. 5251 */ 5252 if (io->io_hdr.flags & CTL_FLAG_IO_CONT) { 5253 io->scsiio.io_cont(io); 5254 return; 5255 } 5256 5257 ctl_datamove(io); 5258 } 5259 5260 /* 5261 * SCSI release command. 5262 */ 5263 int 5264 ctl_scsi_release(struct ctl_scsiio *ctsio) 5265 { 5266 struct ctl_lun *lun = CTL_LUN(ctsio); 5267 uint32_t residx; 5268 5269 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5270 5271 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5272 5273 /* 5274 * XXX KDM right now, we only support LUN reservation. We don't 5275 * support 3rd party reservations, or extent reservations, which 5276 * might actually need the parameter list. If we've gotten this 5277 * far, we've got a LUN reservation. Anything else got kicked out 5278 * above. So, according to SPC, ignore the length. 5279 */ 5280 5281 mtx_lock(&lun->lun_lock); 5282 5283 /* 5284 * According to SPC, it is not an error for an intiator to attempt 5285 * to release a reservation on a LUN that isn't reserved, or that 5286 * is reserved by another initiator. The reservation can only be 5287 * released, though, by the initiator who made it or by one of 5288 * several reset type events. 5289 */ 5290 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5291 lun->flags &= ~CTL_LUN_RESERVED; 5292 5293 mtx_unlock(&lun->lun_lock); 5294 5295 ctl_set_success(ctsio); 5296 ctl_done((union ctl_io *)ctsio); 5297 return (CTL_RETVAL_COMPLETE); 5298 } 5299 5300 int 5301 ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5302 { 5303 struct ctl_lun *lun = CTL_LUN(ctsio); 5304 uint32_t residx; 5305 5306 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5307 5308 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5309 5310 /* 5311 * XXX KDM right now, we only support LUN reservation. We don't 5312 * support 3rd party reservations, or extent reservations, which 5313 * might actually need the parameter list. If we've gotten this 5314 * far, we've got a LUN reservation. Anything else got kicked out 5315 * above. So, according to SPC, ignore the length. 5316 */ 5317 5318 mtx_lock(&lun->lun_lock); 5319 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5320 ctl_set_reservation_conflict(ctsio); 5321 goto bailout; 5322 } 5323 5324 /* SPC-3 exceptions to SPC-2 RESERVE and RELEASE behavior. */ 5325 if (lun->flags & CTL_LUN_PR_RESERVED) { 5326 ctl_set_success(ctsio); 5327 goto bailout; 5328 } 5329 5330 lun->flags |= CTL_LUN_RESERVED; 5331 lun->res_idx = residx; 5332 ctl_set_success(ctsio); 5333 5334 bailout: 5335 mtx_unlock(&lun->lun_lock); 5336 ctl_done((union ctl_io *)ctsio); 5337 return (CTL_RETVAL_COMPLETE); 5338 } 5339 5340 int 5341 ctl_start_stop(struct ctl_scsiio *ctsio) 5342 { 5343 struct ctl_lun *lun = CTL_LUN(ctsio); 5344 struct scsi_start_stop_unit *cdb; 5345 int retval; 5346 5347 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5348 5349 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5350 5351 if ((cdb->how & SSS_PC_MASK) == 0) { 5352 if ((lun->flags & CTL_LUN_PR_RESERVED) && 5353 (cdb->how & SSS_START) == 0) { 5354 uint32_t residx; 5355 5356 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5357 if (ctl_get_prkey(lun, residx) == 0 || 5358 (lun->pr_res_idx != residx && lun->pr_res_type < 4)) { 5359 ctl_set_reservation_conflict(ctsio); 5360 ctl_done((union ctl_io *)ctsio); 5361 return (CTL_RETVAL_COMPLETE); 5362 } 5363 } 5364 5365 if ((cdb->how & SSS_LOEJ) && 5366 (lun->flags & CTL_LUN_REMOVABLE) == 0) { 5367 ctl_set_invalid_field(ctsio, 5368 /*sks_valid*/ 1, 5369 /*command*/ 1, 5370 /*field*/ 4, 5371 /*bit_valid*/ 1, 5372 /*bit*/ 1); 5373 ctl_done((union ctl_io *)ctsio); 5374 return (CTL_RETVAL_COMPLETE); 5375 } 5376 5377 if ((cdb->how & SSS_START) == 0 && (cdb->how & SSS_LOEJ) && 5378 lun->prevent_count > 0) { 5379 /* "Medium removal prevented" */ 5380 ctl_set_sense(ctsio, /*current_error*/ 1, 5381 /*sense_key*/(lun->flags & CTL_LUN_NO_MEDIA) ? 5382 SSD_KEY_NOT_READY : SSD_KEY_ILLEGAL_REQUEST, 5383 /*asc*/ 0x53, /*ascq*/ 0x02, SSD_ELEM_NONE); 5384 ctl_done((union ctl_io *)ctsio); 5385 return (CTL_RETVAL_COMPLETE); 5386 } 5387 } 5388 5389 retval = lun->backend->config_write((union ctl_io *)ctsio); 5390 return (retval); 5391 } 5392 5393 int 5394 ctl_prevent_allow(struct ctl_scsiio *ctsio) 5395 { 5396 struct ctl_lun *lun = CTL_LUN(ctsio); 5397 struct scsi_prevent *cdb; 5398 int retval; 5399 uint32_t initidx; 5400 5401 CTL_DEBUG_PRINT(("ctl_prevent_allow\n")); 5402 5403 cdb = (struct scsi_prevent *)ctsio->cdb; 5404 5405 if ((lun->flags & CTL_LUN_REMOVABLE) == 0 || lun->prevent == NULL) { 5406 ctl_set_invalid_opcode(ctsio); 5407 ctl_done((union ctl_io *)ctsio); 5408 return (CTL_RETVAL_COMPLETE); 5409 } 5410 5411 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5412 mtx_lock(&lun->lun_lock); 5413 if ((cdb->how & PR_PREVENT) && 5414 ctl_is_set(lun->prevent, initidx) == 0) { 5415 ctl_set_mask(lun->prevent, initidx); 5416 lun->prevent_count++; 5417 } else if ((cdb->how & PR_PREVENT) == 0 && 5418 ctl_is_set(lun->prevent, initidx)) { 5419 ctl_clear_mask(lun->prevent, initidx); 5420 lun->prevent_count--; 5421 } 5422 mtx_unlock(&lun->lun_lock); 5423 retval = lun->backend->config_write((union ctl_io *)ctsio); 5424 return (retval); 5425 } 5426 5427 /* 5428 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5429 * we don't really do anything with the LBA and length fields if the user 5430 * passes them in. Instead we'll just flush out the cache for the entire 5431 * LUN. 5432 */ 5433 int 5434 ctl_sync_cache(struct ctl_scsiio *ctsio) 5435 { 5436 struct ctl_lun *lun = CTL_LUN(ctsio); 5437 struct ctl_lba_len_flags *lbalen; 5438 uint64_t starting_lba; 5439 uint32_t block_count; 5440 int retval; 5441 uint8_t byte2; 5442 5443 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5444 5445 retval = 0; 5446 5447 switch (ctsio->cdb[0]) { 5448 case SYNCHRONIZE_CACHE: { 5449 struct scsi_sync_cache *cdb; 5450 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5451 5452 starting_lba = scsi_4btoul(cdb->begin_lba); 5453 block_count = scsi_2btoul(cdb->lb_count); 5454 byte2 = cdb->byte2; 5455 break; 5456 } 5457 case SYNCHRONIZE_CACHE_16: { 5458 struct scsi_sync_cache_16 *cdb; 5459 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5460 5461 starting_lba = scsi_8btou64(cdb->begin_lba); 5462 block_count = scsi_4btoul(cdb->lb_count); 5463 byte2 = cdb->byte2; 5464 break; 5465 } 5466 default: 5467 ctl_set_invalid_opcode(ctsio); 5468 ctl_done((union ctl_io *)ctsio); 5469 goto bailout; 5470 break; /* NOTREACHED */ 5471 } 5472 5473 /* 5474 * We check the LBA and length, but don't do anything with them. 5475 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5476 * get flushed. This check will just help satisfy anyone who wants 5477 * to see an error for an out of range LBA. 5478 */ 5479 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5480 ctl_set_lba_out_of_range(ctsio, 5481 MAX(starting_lba, lun->be_lun->maxlba + 1)); 5482 ctl_done((union ctl_io *)ctsio); 5483 goto bailout; 5484 } 5485 5486 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5487 lbalen->lba = starting_lba; 5488 lbalen->len = block_count; 5489 lbalen->flags = byte2; 5490 retval = lun->backend->config_write((union ctl_io *)ctsio); 5491 5492 bailout: 5493 return (retval); 5494 } 5495 5496 int 5497 ctl_format(struct ctl_scsiio *ctsio) 5498 { 5499 struct scsi_format *cdb; 5500 int length, defect_list_len; 5501 5502 CTL_DEBUG_PRINT(("ctl_format\n")); 5503 5504 cdb = (struct scsi_format *)ctsio->cdb; 5505 5506 length = 0; 5507 if (cdb->byte2 & SF_FMTDATA) { 5508 if (cdb->byte2 & SF_LONGLIST) 5509 length = sizeof(struct scsi_format_header_long); 5510 else 5511 length = sizeof(struct scsi_format_header_short); 5512 } 5513 5514 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5515 && (length > 0)) { 5516 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5517 ctsio->kern_data_len = length; 5518 ctsio->kern_total_len = length; 5519 ctsio->kern_rel_offset = 0; 5520 ctsio->kern_sg_entries = 0; 5521 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5522 ctsio->be_move_done = ctl_config_move_done; 5523 ctl_datamove((union ctl_io *)ctsio); 5524 5525 return (CTL_RETVAL_COMPLETE); 5526 } 5527 5528 defect_list_len = 0; 5529 5530 if (cdb->byte2 & SF_FMTDATA) { 5531 if (cdb->byte2 & SF_LONGLIST) { 5532 struct scsi_format_header_long *header; 5533 5534 header = (struct scsi_format_header_long *) 5535 ctsio->kern_data_ptr; 5536 5537 defect_list_len = scsi_4btoul(header->defect_list_len); 5538 if (defect_list_len != 0) { 5539 ctl_set_invalid_field(ctsio, 5540 /*sks_valid*/ 1, 5541 /*command*/ 0, 5542 /*field*/ 2, 5543 /*bit_valid*/ 0, 5544 /*bit*/ 0); 5545 goto bailout; 5546 } 5547 } else { 5548 struct scsi_format_header_short *header; 5549 5550 header = (struct scsi_format_header_short *) 5551 ctsio->kern_data_ptr; 5552 5553 defect_list_len = scsi_2btoul(header->defect_list_len); 5554 if (defect_list_len != 0) { 5555 ctl_set_invalid_field(ctsio, 5556 /*sks_valid*/ 1, 5557 /*command*/ 0, 5558 /*field*/ 2, 5559 /*bit_valid*/ 0, 5560 /*bit*/ 0); 5561 goto bailout; 5562 } 5563 } 5564 } 5565 5566 ctl_set_success(ctsio); 5567 bailout: 5568 5569 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5570 free(ctsio->kern_data_ptr, M_CTL); 5571 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5572 } 5573 5574 ctl_done((union ctl_io *)ctsio); 5575 return (CTL_RETVAL_COMPLETE); 5576 } 5577 5578 int 5579 ctl_read_buffer(struct ctl_scsiio *ctsio) 5580 { 5581 struct ctl_lun *lun = CTL_LUN(ctsio); 5582 uint64_t buffer_offset; 5583 uint32_t len; 5584 uint8_t byte2; 5585 static uint8_t descr[4]; 5586 static uint8_t echo_descr[4] = { 0 }; 5587 5588 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5589 5590 switch (ctsio->cdb[0]) { 5591 case READ_BUFFER: { 5592 struct scsi_read_buffer *cdb; 5593 5594 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5595 buffer_offset = scsi_3btoul(cdb->offset); 5596 len = scsi_3btoul(cdb->length); 5597 byte2 = cdb->byte2; 5598 break; 5599 } 5600 case READ_BUFFER_16: { 5601 struct scsi_read_buffer_16 *cdb; 5602 5603 cdb = (struct scsi_read_buffer_16 *)ctsio->cdb; 5604 buffer_offset = scsi_8btou64(cdb->offset); 5605 len = scsi_4btoul(cdb->length); 5606 byte2 = cdb->byte2; 5607 break; 5608 } 5609 default: /* This shouldn't happen. */ 5610 ctl_set_invalid_opcode(ctsio); 5611 ctl_done((union ctl_io *)ctsio); 5612 return (CTL_RETVAL_COMPLETE); 5613 } 5614 5615 if (buffer_offset > CTL_WRITE_BUFFER_SIZE || 5616 buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5617 ctl_set_invalid_field(ctsio, 5618 /*sks_valid*/ 1, 5619 /*command*/ 1, 5620 /*field*/ 6, 5621 /*bit_valid*/ 0, 5622 /*bit*/ 0); 5623 ctl_done((union ctl_io *)ctsio); 5624 return (CTL_RETVAL_COMPLETE); 5625 } 5626 5627 if ((byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5628 descr[0] = 0; 5629 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5630 ctsio->kern_data_ptr = descr; 5631 len = min(len, sizeof(descr)); 5632 } else if ((byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5633 ctsio->kern_data_ptr = echo_descr; 5634 len = min(len, sizeof(echo_descr)); 5635 } else { 5636 if (lun->write_buffer == NULL) { 5637 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5638 M_CTL, M_WAITOK); 5639 } 5640 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5641 } 5642 ctsio->kern_data_len = len; 5643 ctsio->kern_total_len = len; 5644 ctsio->kern_rel_offset = 0; 5645 ctsio->kern_sg_entries = 0; 5646 ctl_set_success(ctsio); 5647 ctsio->be_move_done = ctl_config_move_done; 5648 ctl_datamove((union ctl_io *)ctsio); 5649 return (CTL_RETVAL_COMPLETE); 5650 } 5651 5652 int 5653 ctl_write_buffer(struct ctl_scsiio *ctsio) 5654 { 5655 struct ctl_lun *lun = CTL_LUN(ctsio); 5656 struct scsi_write_buffer *cdb; 5657 int buffer_offset, len; 5658 5659 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5660 5661 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5662 5663 len = scsi_3btoul(cdb->length); 5664 buffer_offset = scsi_3btoul(cdb->offset); 5665 5666 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5667 ctl_set_invalid_field(ctsio, 5668 /*sks_valid*/ 1, 5669 /*command*/ 1, 5670 /*field*/ 6, 5671 /*bit_valid*/ 0, 5672 /*bit*/ 0); 5673 ctl_done((union ctl_io *)ctsio); 5674 return (CTL_RETVAL_COMPLETE); 5675 } 5676 5677 /* 5678 * If we've got a kernel request that hasn't been malloced yet, 5679 * malloc it and tell the caller the data buffer is here. 5680 */ 5681 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5682 if (lun->write_buffer == NULL) { 5683 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5684 M_CTL, M_WAITOK); 5685 } 5686 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5687 ctsio->kern_data_len = len; 5688 ctsio->kern_total_len = len; 5689 ctsio->kern_rel_offset = 0; 5690 ctsio->kern_sg_entries = 0; 5691 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5692 ctsio->be_move_done = ctl_config_move_done; 5693 ctl_datamove((union ctl_io *)ctsio); 5694 5695 return (CTL_RETVAL_COMPLETE); 5696 } 5697 5698 ctl_set_success(ctsio); 5699 ctl_done((union ctl_io *)ctsio); 5700 return (CTL_RETVAL_COMPLETE); 5701 } 5702 5703 static int 5704 ctl_write_same_cont(union ctl_io *io) 5705 { 5706 struct ctl_lun *lun = CTL_LUN(io); 5707 struct ctl_scsiio *ctsio; 5708 struct ctl_lba_len_flags *lbalen; 5709 int retval; 5710 5711 ctsio = &io->scsiio; 5712 ctsio->io_hdr.status = CTL_STATUS_NONE; 5713 lbalen = (struct ctl_lba_len_flags *) 5714 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5715 lbalen->lba += lbalen->len; 5716 if ((lun->be_lun->maxlba + 1) - lbalen->lba <= UINT32_MAX) { 5717 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 5718 lbalen->len = (lun->be_lun->maxlba + 1) - lbalen->lba; 5719 } 5720 5721 CTL_DEBUG_PRINT(("ctl_write_same_cont: calling config_write()\n")); 5722 retval = lun->backend->config_write((union ctl_io *)ctsio); 5723 return (retval); 5724 } 5725 5726 int 5727 ctl_write_same(struct ctl_scsiio *ctsio) 5728 { 5729 struct ctl_lun *lun = CTL_LUN(ctsio); 5730 struct ctl_lba_len_flags *lbalen; 5731 const char *val; 5732 uint64_t lba, ival; 5733 uint32_t num_blocks; 5734 int len, retval; 5735 uint8_t byte2; 5736 5737 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5738 5739 switch (ctsio->cdb[0]) { 5740 case WRITE_SAME_10: { 5741 struct scsi_write_same_10 *cdb; 5742 5743 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5744 5745 lba = scsi_4btoul(cdb->addr); 5746 num_blocks = scsi_2btoul(cdb->length); 5747 byte2 = cdb->byte2; 5748 break; 5749 } 5750 case WRITE_SAME_16: { 5751 struct scsi_write_same_16 *cdb; 5752 5753 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5754 5755 lba = scsi_8btou64(cdb->addr); 5756 num_blocks = scsi_4btoul(cdb->length); 5757 byte2 = cdb->byte2; 5758 break; 5759 } 5760 default: 5761 /* 5762 * We got a command we don't support. This shouldn't 5763 * happen, commands should be filtered out above us. 5764 */ 5765 ctl_set_invalid_opcode(ctsio); 5766 ctl_done((union ctl_io *)ctsio); 5767 5768 return (CTL_RETVAL_COMPLETE); 5769 break; /* NOTREACHED */ 5770 } 5771 5772 /* ANCHOR flag can be used only together with UNMAP */ 5773 if ((byte2 & SWS_UNMAP) == 0 && (byte2 & SWS_ANCHOR) != 0) { 5774 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5775 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5776 ctl_done((union ctl_io *)ctsio); 5777 return (CTL_RETVAL_COMPLETE); 5778 } 5779 5780 /* 5781 * The first check is to make sure we're in bounds, the second 5782 * check is to catch wrap-around problems. If the lba + num blocks 5783 * is less than the lba, then we've wrapped around and the block 5784 * range is invalid anyway. 5785 */ 5786 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5787 || ((lba + num_blocks) < lba)) { 5788 ctl_set_lba_out_of_range(ctsio, 5789 MAX(lba, lun->be_lun->maxlba + 1)); 5790 ctl_done((union ctl_io *)ctsio); 5791 return (CTL_RETVAL_COMPLETE); 5792 } 5793 5794 /* Zero number of blocks means "to the last logical block" */ 5795 if (num_blocks == 0) { 5796 ival = UINT64_MAX; 5797 val = dnvlist_get_string(lun->be_lun->options, 5798 "write_same_max_lba", NULL); 5799 if (val != NULL) 5800 ctl_expand_number(val, &ival); 5801 if ((lun->be_lun->maxlba + 1) - lba > ival) { 5802 ctl_set_invalid_field(ctsio, 5803 /*sks_valid*/ 1, /*command*/ 1, 5804 /*field*/ ctsio->cdb[0] == WRITE_SAME_10 ? 7 : 10, 5805 /*bit_valid*/ 0, /*bit*/ 0); 5806 ctl_done((union ctl_io *)ctsio); 5807 return (CTL_RETVAL_COMPLETE); 5808 } 5809 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5810 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 5811 ctsio->io_cont = ctl_write_same_cont; 5812 num_blocks = 1 << 31; 5813 } else 5814 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5815 } 5816 5817 len = lun->be_lun->blocksize; 5818 5819 /* 5820 * If we've got a kernel request that hasn't been malloced yet, 5821 * malloc it and tell the caller the data buffer is here. 5822 */ 5823 if ((byte2 & SWS_NDOB) == 0 && 5824 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5825 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK); 5826 ctsio->kern_data_len = len; 5827 ctsio->kern_total_len = len; 5828 ctsio->kern_rel_offset = 0; 5829 ctsio->kern_sg_entries = 0; 5830 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5831 ctsio->be_move_done = ctl_config_move_done; 5832 ctl_datamove((union ctl_io *)ctsio); 5833 5834 return (CTL_RETVAL_COMPLETE); 5835 } 5836 5837 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5838 lbalen->lba = lba; 5839 lbalen->len = num_blocks; 5840 lbalen->flags = byte2; 5841 retval = lun->backend->config_write((union ctl_io *)ctsio); 5842 5843 return (retval); 5844 } 5845 5846 int 5847 ctl_unmap(struct ctl_scsiio *ctsio) 5848 { 5849 struct ctl_lun *lun = CTL_LUN(ctsio); 5850 struct scsi_unmap *cdb; 5851 struct ctl_ptr_len_flags *ptrlen; 5852 struct scsi_unmap_header *hdr; 5853 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5854 uint64_t lba; 5855 uint32_t num_blocks; 5856 int len, retval; 5857 uint8_t byte2; 5858 5859 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5860 5861 cdb = (struct scsi_unmap *)ctsio->cdb; 5862 len = scsi_2btoul(cdb->length); 5863 byte2 = cdb->byte2; 5864 5865 /* 5866 * If we've got a kernel request that hasn't been malloced yet, 5867 * malloc it and tell the caller the data buffer is here. 5868 */ 5869 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5870 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK); 5871 ctsio->kern_data_len = len; 5872 ctsio->kern_total_len = len; 5873 ctsio->kern_rel_offset = 0; 5874 ctsio->kern_sg_entries = 0; 5875 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5876 ctsio->be_move_done = ctl_config_move_done; 5877 ctl_datamove((union ctl_io *)ctsio); 5878 5879 return (CTL_RETVAL_COMPLETE); 5880 } 5881 5882 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5883 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5884 if (len < sizeof (*hdr) || 5885 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5886 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5887 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5888 ctl_set_invalid_field(ctsio, 5889 /*sks_valid*/ 0, 5890 /*command*/ 0, 5891 /*field*/ 0, 5892 /*bit_valid*/ 0, 5893 /*bit*/ 0); 5894 goto done; 5895 } 5896 len = scsi_2btoul(hdr->desc_length); 5897 buf = (struct scsi_unmap_desc *)(hdr + 1); 5898 end = buf + len / sizeof(*buf); 5899 5900 endnz = buf; 5901 for (range = buf; range < end; range++) { 5902 lba = scsi_8btou64(range->lba); 5903 num_blocks = scsi_4btoul(range->length); 5904 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5905 || ((lba + num_blocks) < lba)) { 5906 ctl_set_lba_out_of_range(ctsio, 5907 MAX(lba, lun->be_lun->maxlba + 1)); 5908 ctl_done((union ctl_io *)ctsio); 5909 return (CTL_RETVAL_COMPLETE); 5910 } 5911 if (num_blocks != 0) 5912 endnz = range + 1; 5913 } 5914 5915 /* 5916 * Block backend can not handle zero last range. 5917 * Filter it out and return if there is nothing left. 5918 */ 5919 len = (uint8_t *)endnz - (uint8_t *)buf; 5920 if (len == 0) { 5921 ctl_set_success(ctsio); 5922 goto done; 5923 } 5924 5925 mtx_lock(&lun->lun_lock); 5926 ptrlen = (struct ctl_ptr_len_flags *) 5927 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5928 ptrlen->ptr = (void *)buf; 5929 ptrlen->len = len; 5930 ptrlen->flags = byte2; 5931 ctl_try_unblock_others(lun, (union ctl_io *)ctsio, FALSE); 5932 mtx_unlock(&lun->lun_lock); 5933 5934 retval = lun->backend->config_write((union ctl_io *)ctsio); 5935 return (retval); 5936 5937 done: 5938 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5939 free(ctsio->kern_data_ptr, M_CTL); 5940 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5941 } 5942 ctl_done((union ctl_io *)ctsio); 5943 return (CTL_RETVAL_COMPLETE); 5944 } 5945 5946 int 5947 ctl_default_page_handler(struct ctl_scsiio *ctsio, 5948 struct ctl_page_index *page_index, uint8_t *page_ptr) 5949 { 5950 struct ctl_lun *lun = CTL_LUN(ctsio); 5951 uint8_t *current_cp; 5952 int set_ua; 5953 uint32_t initidx; 5954 5955 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5956 set_ua = 0; 5957 5958 current_cp = (page_index->page_data + (page_index->page_len * 5959 CTL_PAGE_CURRENT)); 5960 5961 mtx_lock(&lun->lun_lock); 5962 if (memcmp(current_cp, page_ptr, page_index->page_len)) { 5963 memcpy(current_cp, page_ptr, page_index->page_len); 5964 set_ua = 1; 5965 } 5966 if (set_ua != 0) 5967 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 5968 mtx_unlock(&lun->lun_lock); 5969 if (set_ua) { 5970 ctl_isc_announce_mode(lun, 5971 ctl_get_initindex(&ctsio->io_hdr.nexus), 5972 page_index->page_code, page_index->subpage); 5973 } 5974 return (CTL_RETVAL_COMPLETE); 5975 } 5976 5977 static void 5978 ctl_ie_timer(void *arg) 5979 { 5980 struct ctl_lun *lun = arg; 5981 uint64_t t; 5982 5983 if (lun->ie_asc == 0) 5984 return; 5985 5986 if (lun->MODE_IE.mrie == SIEP_MRIE_UA) 5987 ctl_est_ua_all(lun, -1, CTL_UA_IE); 5988 else 5989 lun->ie_reported = 0; 5990 5991 if (lun->ie_reportcnt < scsi_4btoul(lun->MODE_IE.report_count)) { 5992 lun->ie_reportcnt++; 5993 t = scsi_4btoul(lun->MODE_IE.interval_timer); 5994 if (t == 0 || t == UINT32_MAX) 5995 t = 3000; /* 5 min */ 5996 callout_schedule_sbt(&lun->ie_callout, SBT_1S / 10 * t, 5997 SBT_1S / 10, 0); 5998 } 5999 } 6000 6001 int 6002 ctl_ie_page_handler(struct ctl_scsiio *ctsio, 6003 struct ctl_page_index *page_index, uint8_t *page_ptr) 6004 { 6005 struct ctl_lun *lun = CTL_LUN(ctsio); 6006 struct scsi_info_exceptions_page *pg; 6007 uint64_t t; 6008 6009 (void)ctl_default_page_handler(ctsio, page_index, page_ptr); 6010 6011 pg = (struct scsi_info_exceptions_page *)page_ptr; 6012 mtx_lock(&lun->lun_lock); 6013 if (pg->info_flags & SIEP_FLAGS_TEST) { 6014 lun->ie_asc = 0x5d; 6015 lun->ie_ascq = 0xff; 6016 if (pg->mrie == SIEP_MRIE_UA) { 6017 ctl_est_ua_all(lun, -1, CTL_UA_IE); 6018 lun->ie_reported = 1; 6019 } else { 6020 ctl_clr_ua_all(lun, -1, CTL_UA_IE); 6021 lun->ie_reported = -1; 6022 } 6023 lun->ie_reportcnt = 1; 6024 if (lun->ie_reportcnt < scsi_4btoul(pg->report_count)) { 6025 lun->ie_reportcnt++; 6026 t = scsi_4btoul(pg->interval_timer); 6027 if (t == 0 || t == UINT32_MAX) 6028 t = 3000; /* 5 min */ 6029 callout_reset_sbt(&lun->ie_callout, SBT_1S / 10 * t, 6030 SBT_1S / 10, ctl_ie_timer, lun, 0); 6031 } 6032 } else { 6033 lun->ie_asc = 0; 6034 lun->ie_ascq = 0; 6035 lun->ie_reported = 1; 6036 ctl_clr_ua_all(lun, -1, CTL_UA_IE); 6037 lun->ie_reportcnt = UINT32_MAX; 6038 callout_stop(&lun->ie_callout); 6039 } 6040 mtx_unlock(&lun->lun_lock); 6041 return (CTL_RETVAL_COMPLETE); 6042 } 6043 6044 static int 6045 ctl_do_mode_select(union ctl_io *io) 6046 { 6047 struct ctl_lun *lun = CTL_LUN(io); 6048 struct scsi_mode_page_header *page_header; 6049 struct ctl_page_index *page_index; 6050 struct ctl_scsiio *ctsio; 6051 int page_len, page_len_offset, page_len_size; 6052 union ctl_modepage_info *modepage_info; 6053 uint16_t *len_left, *len_used; 6054 int retval, i; 6055 6056 ctsio = &io->scsiio; 6057 page_index = NULL; 6058 page_len = 0; 6059 6060 modepage_info = (union ctl_modepage_info *) 6061 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6062 len_left = &modepage_info->header.len_left; 6063 len_used = &modepage_info->header.len_used; 6064 6065 do_next_page: 6066 6067 page_header = (struct scsi_mode_page_header *) 6068 (ctsio->kern_data_ptr + *len_used); 6069 6070 if (*len_left == 0) { 6071 free(ctsio->kern_data_ptr, M_CTL); 6072 ctl_set_success(ctsio); 6073 ctl_done((union ctl_io *)ctsio); 6074 return (CTL_RETVAL_COMPLETE); 6075 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6076 free(ctsio->kern_data_ptr, M_CTL); 6077 ctl_set_param_len_error(ctsio); 6078 ctl_done((union ctl_io *)ctsio); 6079 return (CTL_RETVAL_COMPLETE); 6080 6081 } else if ((page_header->page_code & SMPH_SPF) 6082 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6083 free(ctsio->kern_data_ptr, M_CTL); 6084 ctl_set_param_len_error(ctsio); 6085 ctl_done((union ctl_io *)ctsio); 6086 return (CTL_RETVAL_COMPLETE); 6087 } 6088 6089 /* 6090 * XXX KDM should we do something with the block descriptor? 6091 */ 6092 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6093 page_index = &lun->mode_pages.index[i]; 6094 if (lun->be_lun->lun_type == T_DIRECT && 6095 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6096 continue; 6097 if (lun->be_lun->lun_type == T_PROCESSOR && 6098 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6099 continue; 6100 if (lun->be_lun->lun_type == T_CDROM && 6101 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6102 continue; 6103 6104 if ((page_index->page_code & SMPH_PC_MASK) != 6105 (page_header->page_code & SMPH_PC_MASK)) 6106 continue; 6107 6108 /* 6109 * If neither page has a subpage code, then we've got a 6110 * match. 6111 */ 6112 if (((page_index->page_code & SMPH_SPF) == 0) 6113 && ((page_header->page_code & SMPH_SPF) == 0)) { 6114 page_len = page_header->page_length; 6115 break; 6116 } 6117 6118 /* 6119 * If both pages have subpages, then the subpage numbers 6120 * have to match. 6121 */ 6122 if ((page_index->page_code & SMPH_SPF) 6123 && (page_header->page_code & SMPH_SPF)) { 6124 struct scsi_mode_page_header_sp *sph; 6125 6126 sph = (struct scsi_mode_page_header_sp *)page_header; 6127 if (page_index->subpage == sph->subpage) { 6128 page_len = scsi_2btoul(sph->page_length); 6129 break; 6130 } 6131 } 6132 } 6133 6134 /* 6135 * If we couldn't find the page, or if we don't have a mode select 6136 * handler for it, send back an error to the user. 6137 */ 6138 if ((i >= CTL_NUM_MODE_PAGES) 6139 || (page_index->select_handler == NULL)) { 6140 ctl_set_invalid_field(ctsio, 6141 /*sks_valid*/ 1, 6142 /*command*/ 0, 6143 /*field*/ *len_used, 6144 /*bit_valid*/ 0, 6145 /*bit*/ 0); 6146 free(ctsio->kern_data_ptr, M_CTL); 6147 ctl_done((union ctl_io *)ctsio); 6148 return (CTL_RETVAL_COMPLETE); 6149 } 6150 6151 if (page_index->page_code & SMPH_SPF) { 6152 page_len_offset = 2; 6153 page_len_size = 2; 6154 } else { 6155 page_len_size = 1; 6156 page_len_offset = 1; 6157 } 6158 6159 /* 6160 * If the length the initiator gives us isn't the one we specify in 6161 * the mode page header, or if they didn't specify enough data in 6162 * the CDB to avoid truncating this page, kick out the request. 6163 */ 6164 if (page_len != page_index->page_len - page_len_offset - page_len_size) { 6165 ctl_set_invalid_field(ctsio, 6166 /*sks_valid*/ 1, 6167 /*command*/ 0, 6168 /*field*/ *len_used + page_len_offset, 6169 /*bit_valid*/ 0, 6170 /*bit*/ 0); 6171 free(ctsio->kern_data_ptr, M_CTL); 6172 ctl_done((union ctl_io *)ctsio); 6173 return (CTL_RETVAL_COMPLETE); 6174 } 6175 if (*len_left < page_index->page_len) { 6176 free(ctsio->kern_data_ptr, M_CTL); 6177 ctl_set_param_len_error(ctsio); 6178 ctl_done((union ctl_io *)ctsio); 6179 return (CTL_RETVAL_COMPLETE); 6180 } 6181 6182 /* 6183 * Run through the mode page, checking to make sure that the bits 6184 * the user changed are actually legal for him to change. 6185 */ 6186 for (i = 0; i < page_index->page_len; i++) { 6187 uint8_t *user_byte, *change_mask, *current_byte; 6188 int bad_bit; 6189 int j; 6190 6191 user_byte = (uint8_t *)page_header + i; 6192 change_mask = page_index->page_data + 6193 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6194 current_byte = page_index->page_data + 6195 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6196 6197 /* 6198 * Check to see whether the user set any bits in this byte 6199 * that he is not allowed to set. 6200 */ 6201 if ((*user_byte & ~(*change_mask)) == 6202 (*current_byte & ~(*change_mask))) 6203 continue; 6204 6205 /* 6206 * Go through bit by bit to determine which one is illegal. 6207 */ 6208 bad_bit = 0; 6209 for (j = 7; j >= 0; j--) { 6210 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6211 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6212 bad_bit = i; 6213 break; 6214 } 6215 } 6216 ctl_set_invalid_field(ctsio, 6217 /*sks_valid*/ 1, 6218 /*command*/ 0, 6219 /*field*/ *len_used + i, 6220 /*bit_valid*/ 1, 6221 /*bit*/ bad_bit); 6222 free(ctsio->kern_data_ptr, M_CTL); 6223 ctl_done((union ctl_io *)ctsio); 6224 return (CTL_RETVAL_COMPLETE); 6225 } 6226 6227 /* 6228 * Decrement these before we call the page handler, since we may 6229 * end up getting called back one way or another before the handler 6230 * returns to this context. 6231 */ 6232 *len_left -= page_index->page_len; 6233 *len_used += page_index->page_len; 6234 6235 retval = page_index->select_handler(ctsio, page_index, 6236 (uint8_t *)page_header); 6237 6238 /* 6239 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6240 * wait until this queued command completes to finish processing 6241 * the mode page. If it returns anything other than 6242 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6243 * already set the sense information, freed the data pointer, and 6244 * completed the io for us. 6245 */ 6246 if (retval != CTL_RETVAL_COMPLETE) 6247 goto bailout_no_done; 6248 6249 /* 6250 * If the initiator sent us more than one page, parse the next one. 6251 */ 6252 if (*len_left > 0) 6253 goto do_next_page; 6254 6255 ctl_set_success(ctsio); 6256 free(ctsio->kern_data_ptr, M_CTL); 6257 ctl_done((union ctl_io *)ctsio); 6258 6259 bailout_no_done: 6260 6261 return (CTL_RETVAL_COMPLETE); 6262 6263 } 6264 6265 int 6266 ctl_mode_select(struct ctl_scsiio *ctsio) 6267 { 6268 struct ctl_lun *lun = CTL_LUN(ctsio); 6269 union ctl_modepage_info *modepage_info; 6270 int bd_len, i, header_size, param_len, rtd; 6271 uint32_t initidx; 6272 6273 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6274 switch (ctsio->cdb[0]) { 6275 case MODE_SELECT_6: { 6276 struct scsi_mode_select_6 *cdb; 6277 6278 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6279 6280 rtd = (cdb->byte2 & SMS_RTD) ? 1 : 0; 6281 param_len = cdb->length; 6282 header_size = sizeof(struct scsi_mode_header_6); 6283 break; 6284 } 6285 case MODE_SELECT_10: { 6286 struct scsi_mode_select_10 *cdb; 6287 6288 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6289 6290 rtd = (cdb->byte2 & SMS_RTD) ? 1 : 0; 6291 param_len = scsi_2btoul(cdb->length); 6292 header_size = sizeof(struct scsi_mode_header_10); 6293 break; 6294 } 6295 default: 6296 ctl_set_invalid_opcode(ctsio); 6297 ctl_done((union ctl_io *)ctsio); 6298 return (CTL_RETVAL_COMPLETE); 6299 } 6300 6301 if (rtd) { 6302 if (param_len != 0) { 6303 ctl_set_invalid_field(ctsio, /*sks_valid*/ 0, 6304 /*command*/ 1, /*field*/ 0, 6305 /*bit_valid*/ 0, /*bit*/ 0); 6306 ctl_done((union ctl_io *)ctsio); 6307 return (CTL_RETVAL_COMPLETE); 6308 } 6309 6310 /* Revert to defaults. */ 6311 ctl_init_page_index(lun); 6312 mtx_lock(&lun->lun_lock); 6313 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 6314 mtx_unlock(&lun->lun_lock); 6315 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6316 ctl_isc_announce_mode(lun, -1, 6317 lun->mode_pages.index[i].page_code & SMPH_PC_MASK, 6318 lun->mode_pages.index[i].subpage); 6319 } 6320 ctl_set_success(ctsio); 6321 ctl_done((union ctl_io *)ctsio); 6322 return (CTL_RETVAL_COMPLETE); 6323 } 6324 6325 /* 6326 * From SPC-3: 6327 * "A parameter list length of zero indicates that the Data-Out Buffer 6328 * shall be empty. This condition shall not be considered as an error." 6329 */ 6330 if (param_len == 0) { 6331 ctl_set_success(ctsio); 6332 ctl_done((union ctl_io *)ctsio); 6333 return (CTL_RETVAL_COMPLETE); 6334 } 6335 6336 /* 6337 * Since we'll hit this the first time through, prior to 6338 * allocation, we don't need to free a data buffer here. 6339 */ 6340 if (param_len < header_size) { 6341 ctl_set_param_len_error(ctsio); 6342 ctl_done((union ctl_io *)ctsio); 6343 return (CTL_RETVAL_COMPLETE); 6344 } 6345 6346 /* 6347 * Allocate the data buffer and grab the user's data. In theory, 6348 * we shouldn't have to sanity check the parameter list length here 6349 * because the maximum size is 64K. We should be able to malloc 6350 * that much without too many problems. 6351 */ 6352 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6353 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6354 ctsio->kern_data_len = param_len; 6355 ctsio->kern_total_len = param_len; 6356 ctsio->kern_rel_offset = 0; 6357 ctsio->kern_sg_entries = 0; 6358 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6359 ctsio->be_move_done = ctl_config_move_done; 6360 ctl_datamove((union ctl_io *)ctsio); 6361 6362 return (CTL_RETVAL_COMPLETE); 6363 } 6364 6365 switch (ctsio->cdb[0]) { 6366 case MODE_SELECT_6: { 6367 struct scsi_mode_header_6 *mh6; 6368 6369 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6370 bd_len = mh6->blk_desc_len; 6371 break; 6372 } 6373 case MODE_SELECT_10: { 6374 struct scsi_mode_header_10 *mh10; 6375 6376 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6377 bd_len = scsi_2btoul(mh10->blk_desc_len); 6378 break; 6379 } 6380 default: 6381 panic("%s: Invalid CDB type %#x", __func__, ctsio->cdb[0]); 6382 } 6383 6384 if (param_len < (header_size + bd_len)) { 6385 free(ctsio->kern_data_ptr, M_CTL); 6386 ctl_set_param_len_error(ctsio); 6387 ctl_done((union ctl_io *)ctsio); 6388 return (CTL_RETVAL_COMPLETE); 6389 } 6390 6391 /* 6392 * Set the IO_CONT flag, so that if this I/O gets passed to 6393 * ctl_config_write_done(), it'll get passed back to 6394 * ctl_do_mode_select() for further processing, or completion if 6395 * we're all done. 6396 */ 6397 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6398 ctsio->io_cont = ctl_do_mode_select; 6399 6400 modepage_info = (union ctl_modepage_info *) 6401 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6402 memset(modepage_info, 0, sizeof(*modepage_info)); 6403 modepage_info->header.len_left = param_len - header_size - bd_len; 6404 modepage_info->header.len_used = header_size + bd_len; 6405 6406 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6407 } 6408 6409 int 6410 ctl_mode_sense(struct ctl_scsiio *ctsio) 6411 { 6412 struct ctl_lun *lun = CTL_LUN(ctsio); 6413 int pc, page_code, llba, subpage; 6414 int alloc_len, page_len, header_len, bd_len, total_len; 6415 void *block_desc; 6416 struct ctl_page_index *page_index; 6417 6418 llba = 0; 6419 6420 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6421 6422 switch (ctsio->cdb[0]) { 6423 case MODE_SENSE_6: { 6424 struct scsi_mode_sense_6 *cdb; 6425 6426 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6427 6428 header_len = sizeof(struct scsi_mode_hdr_6); 6429 if (cdb->byte2 & SMS_DBD) 6430 bd_len = 0; 6431 else 6432 bd_len = sizeof(struct scsi_mode_block_descr); 6433 header_len += bd_len; 6434 6435 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6436 page_code = cdb->page & SMS_PAGE_CODE; 6437 subpage = cdb->subpage; 6438 alloc_len = cdb->length; 6439 break; 6440 } 6441 case MODE_SENSE_10: { 6442 struct scsi_mode_sense_10 *cdb; 6443 6444 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6445 6446 header_len = sizeof(struct scsi_mode_hdr_10); 6447 if (cdb->byte2 & SMS_DBD) { 6448 bd_len = 0; 6449 } else if (lun->be_lun->lun_type == T_DIRECT) { 6450 if (cdb->byte2 & SMS10_LLBAA) { 6451 llba = 1; 6452 bd_len = sizeof(struct scsi_mode_block_descr_dlong); 6453 } else 6454 bd_len = sizeof(struct scsi_mode_block_descr_dshort); 6455 } else 6456 bd_len = sizeof(struct scsi_mode_block_descr); 6457 header_len += bd_len; 6458 6459 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6460 page_code = cdb->page & SMS_PAGE_CODE; 6461 subpage = cdb->subpage; 6462 alloc_len = scsi_2btoul(cdb->length); 6463 break; 6464 } 6465 default: 6466 ctl_set_invalid_opcode(ctsio); 6467 ctl_done((union ctl_io *)ctsio); 6468 return (CTL_RETVAL_COMPLETE); 6469 break; /* NOTREACHED */ 6470 } 6471 6472 /* 6473 * We have to make a first pass through to calculate the size of 6474 * the pages that match the user's query. Then we allocate enough 6475 * memory to hold it, and actually copy the data into the buffer. 6476 */ 6477 switch (page_code) { 6478 case SMS_ALL_PAGES_PAGE: { 6479 u_int i; 6480 6481 page_len = 0; 6482 6483 /* 6484 * At the moment, values other than 0 and 0xff here are 6485 * reserved according to SPC-3. 6486 */ 6487 if ((subpage != SMS_SUBPAGE_PAGE_0) 6488 && (subpage != SMS_SUBPAGE_ALL)) { 6489 ctl_set_invalid_field(ctsio, 6490 /*sks_valid*/ 1, 6491 /*command*/ 1, 6492 /*field*/ 3, 6493 /*bit_valid*/ 0, 6494 /*bit*/ 0); 6495 ctl_done((union ctl_io *)ctsio); 6496 return (CTL_RETVAL_COMPLETE); 6497 } 6498 6499 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6500 page_index = &lun->mode_pages.index[i]; 6501 6502 /* Make sure the page is supported for this dev type */ 6503 if (lun->be_lun->lun_type == T_DIRECT && 6504 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6505 continue; 6506 if (lun->be_lun->lun_type == T_PROCESSOR && 6507 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6508 continue; 6509 if (lun->be_lun->lun_type == T_CDROM && 6510 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6511 continue; 6512 6513 /* 6514 * We don't use this subpage if the user didn't 6515 * request all subpages. 6516 */ 6517 if ((page_index->subpage != 0) 6518 && (subpage == SMS_SUBPAGE_PAGE_0)) 6519 continue; 6520 6521 page_len += page_index->page_len; 6522 } 6523 break; 6524 } 6525 default: { 6526 u_int i; 6527 6528 page_len = 0; 6529 6530 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6531 page_index = &lun->mode_pages.index[i]; 6532 6533 /* Make sure the page is supported for this dev type */ 6534 if (lun->be_lun->lun_type == T_DIRECT && 6535 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6536 continue; 6537 if (lun->be_lun->lun_type == T_PROCESSOR && 6538 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6539 continue; 6540 if (lun->be_lun->lun_type == T_CDROM && 6541 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6542 continue; 6543 6544 /* Look for the right page code */ 6545 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6546 continue; 6547 6548 /* Look for the right subpage or the subpage wildcard*/ 6549 if ((page_index->subpage != subpage) 6550 && (subpage != SMS_SUBPAGE_ALL)) 6551 continue; 6552 6553 page_len += page_index->page_len; 6554 } 6555 6556 if (page_len == 0) { 6557 ctl_set_invalid_field(ctsio, 6558 /*sks_valid*/ 1, 6559 /*command*/ 1, 6560 /*field*/ 2, 6561 /*bit_valid*/ 1, 6562 /*bit*/ 5); 6563 ctl_done((union ctl_io *)ctsio); 6564 return (CTL_RETVAL_COMPLETE); 6565 } 6566 break; 6567 } 6568 } 6569 6570 total_len = header_len + page_len; 6571 6572 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6573 ctsio->kern_sg_entries = 0; 6574 ctsio->kern_rel_offset = 0; 6575 ctsio->kern_data_len = min(total_len, alloc_len); 6576 ctsio->kern_total_len = ctsio->kern_data_len; 6577 6578 switch (ctsio->cdb[0]) { 6579 case MODE_SENSE_6: { 6580 struct scsi_mode_hdr_6 *header; 6581 6582 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6583 6584 header->datalen = MIN(total_len - 1, 254); 6585 if (lun->be_lun->lun_type == T_DIRECT) { 6586 header->dev_specific = 0x10; /* DPOFUA */ 6587 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6588 (lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) 6589 header->dev_specific |= 0x80; /* WP */ 6590 } 6591 header->block_descr_len = bd_len; 6592 block_desc = &header[1]; 6593 break; 6594 } 6595 case MODE_SENSE_10: { 6596 struct scsi_mode_hdr_10 *header; 6597 int datalen; 6598 6599 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6600 6601 datalen = MIN(total_len - 2, 65533); 6602 scsi_ulto2b(datalen, header->datalen); 6603 if (lun->be_lun->lun_type == T_DIRECT) { 6604 header->dev_specific = 0x10; /* DPOFUA */ 6605 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6606 (lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) 6607 header->dev_specific |= 0x80; /* WP */ 6608 } 6609 if (llba) 6610 header->flags |= SMH_LONGLBA; 6611 scsi_ulto2b(bd_len, header->block_descr_len); 6612 block_desc = &header[1]; 6613 break; 6614 } 6615 default: 6616 panic("%s: Invalid CDB type %#x", __func__, ctsio->cdb[0]); 6617 } 6618 6619 /* 6620 * If we've got a disk, use its blocksize in the block 6621 * descriptor. Otherwise, just set it to 0. 6622 */ 6623 if (bd_len > 0) { 6624 if (lun->be_lun->lun_type == T_DIRECT) { 6625 if (llba) { 6626 struct scsi_mode_block_descr_dlong *bd = block_desc; 6627 if (lun->be_lun->maxlba != 0) 6628 scsi_u64to8b(lun->be_lun->maxlba + 1, 6629 bd->num_blocks); 6630 scsi_ulto4b(lun->be_lun->blocksize, 6631 bd->block_len); 6632 } else { 6633 struct scsi_mode_block_descr_dshort *bd = block_desc; 6634 if (lun->be_lun->maxlba != 0) 6635 scsi_ulto4b(MIN(lun->be_lun->maxlba+1, 6636 UINT32_MAX), bd->num_blocks); 6637 scsi_ulto3b(lun->be_lun->blocksize, 6638 bd->block_len); 6639 } 6640 } else { 6641 struct scsi_mode_block_descr *bd = block_desc; 6642 scsi_ulto3b(0, bd->block_len); 6643 } 6644 } 6645 6646 switch (page_code) { 6647 case SMS_ALL_PAGES_PAGE: { 6648 int i, data_used; 6649 6650 data_used = header_len; 6651 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6652 struct ctl_page_index *page_index; 6653 6654 page_index = &lun->mode_pages.index[i]; 6655 if (lun->be_lun->lun_type == T_DIRECT && 6656 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6657 continue; 6658 if (lun->be_lun->lun_type == T_PROCESSOR && 6659 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6660 continue; 6661 if (lun->be_lun->lun_type == T_CDROM && 6662 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6663 continue; 6664 6665 /* 6666 * We don't use this subpage if the user didn't 6667 * request all subpages. We already checked (above) 6668 * to make sure the user only specified a subpage 6669 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6670 */ 6671 if ((page_index->subpage != 0) 6672 && (subpage == SMS_SUBPAGE_PAGE_0)) 6673 continue; 6674 6675 /* 6676 * Call the handler, if it exists, to update the 6677 * page to the latest values. 6678 */ 6679 if (page_index->sense_handler != NULL) 6680 page_index->sense_handler(ctsio, page_index,pc); 6681 6682 memcpy(ctsio->kern_data_ptr + data_used, 6683 page_index->page_data + 6684 (page_index->page_len * pc), 6685 page_index->page_len); 6686 data_used += page_index->page_len; 6687 } 6688 break; 6689 } 6690 default: { 6691 int i, data_used; 6692 6693 data_used = header_len; 6694 6695 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6696 struct ctl_page_index *page_index; 6697 6698 page_index = &lun->mode_pages.index[i]; 6699 6700 /* Look for the right page code */ 6701 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6702 continue; 6703 6704 /* Look for the right subpage or the subpage wildcard*/ 6705 if ((page_index->subpage != subpage) 6706 && (subpage != SMS_SUBPAGE_ALL)) 6707 continue; 6708 6709 /* Make sure the page is supported for this dev type */ 6710 if (lun->be_lun->lun_type == T_DIRECT && 6711 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6712 continue; 6713 if (lun->be_lun->lun_type == T_PROCESSOR && 6714 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6715 continue; 6716 if (lun->be_lun->lun_type == T_CDROM && 6717 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6718 continue; 6719 6720 /* 6721 * Call the handler, if it exists, to update the 6722 * page to the latest values. 6723 */ 6724 if (page_index->sense_handler != NULL) 6725 page_index->sense_handler(ctsio, page_index,pc); 6726 6727 memcpy(ctsio->kern_data_ptr + data_used, 6728 page_index->page_data + 6729 (page_index->page_len * pc), 6730 page_index->page_len); 6731 data_used += page_index->page_len; 6732 } 6733 break; 6734 } 6735 } 6736 6737 ctl_set_success(ctsio); 6738 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6739 ctsio->be_move_done = ctl_config_move_done; 6740 ctl_datamove((union ctl_io *)ctsio); 6741 return (CTL_RETVAL_COMPLETE); 6742 } 6743 6744 int 6745 ctl_temp_log_sense_handler(struct ctl_scsiio *ctsio, 6746 struct ctl_page_index *page_index, 6747 int pc) 6748 { 6749 struct ctl_lun *lun = CTL_LUN(ctsio); 6750 struct scsi_log_temperature *data; 6751 const char *value; 6752 6753 data = (struct scsi_log_temperature *)page_index->page_data; 6754 6755 scsi_ulto2b(SLP_TEMPERATURE, data->hdr.param_code); 6756 data->hdr.param_control = SLP_LBIN; 6757 data->hdr.param_len = sizeof(struct scsi_log_temperature) - 6758 sizeof(struct scsi_log_param_header); 6759 if ((value = dnvlist_get_string(lun->be_lun->options, "temperature", 6760 NULL)) != NULL) 6761 data->temperature = strtol(value, NULL, 0); 6762 else 6763 data->temperature = 0xff; 6764 data++; 6765 6766 scsi_ulto2b(SLP_REFTEMPERATURE, data->hdr.param_code); 6767 data->hdr.param_control = SLP_LBIN; 6768 data->hdr.param_len = sizeof(struct scsi_log_temperature) - 6769 sizeof(struct scsi_log_param_header); 6770 if ((value = dnvlist_get_string(lun->be_lun->options, "reftemperature", 6771 NULL)) != NULL) 6772 data->temperature = strtol(value, NULL, 0); 6773 else 6774 data->temperature = 0xff; 6775 return (0); 6776 } 6777 6778 int 6779 ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6780 struct ctl_page_index *page_index, 6781 int pc) 6782 { 6783 struct ctl_lun *lun = CTL_LUN(ctsio); 6784 struct scsi_log_param_header *phdr; 6785 uint8_t *data; 6786 uint64_t val; 6787 6788 data = page_index->page_data; 6789 6790 if (lun->backend->lun_attr != NULL && 6791 (val = lun->backend->lun_attr(lun->be_lun, "blocksavail")) 6792 != UINT64_MAX) { 6793 phdr = (struct scsi_log_param_header *)data; 6794 scsi_ulto2b(0x0001, phdr->param_code); 6795 phdr->param_control = SLP_LBIN | SLP_LP; 6796 phdr->param_len = 8; 6797 data = (uint8_t *)(phdr + 1); 6798 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6799 data[4] = 0x02; /* per-pool */ 6800 data += phdr->param_len; 6801 } 6802 6803 if (lun->backend->lun_attr != NULL && 6804 (val = lun->backend->lun_attr(lun->be_lun, "blocksused")) 6805 != UINT64_MAX) { 6806 phdr = (struct scsi_log_param_header *)data; 6807 scsi_ulto2b(0x0002, phdr->param_code); 6808 phdr->param_control = SLP_LBIN | SLP_LP; 6809 phdr->param_len = 8; 6810 data = (uint8_t *)(phdr + 1); 6811 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6812 data[4] = 0x01; /* per-LUN */ 6813 data += phdr->param_len; 6814 } 6815 6816 if (lun->backend->lun_attr != NULL && 6817 (val = lun->backend->lun_attr(lun->be_lun, "poolblocksavail")) 6818 != UINT64_MAX) { 6819 phdr = (struct scsi_log_param_header *)data; 6820 scsi_ulto2b(0x00f1, phdr->param_code); 6821 phdr->param_control = SLP_LBIN | SLP_LP; 6822 phdr->param_len = 8; 6823 data = (uint8_t *)(phdr + 1); 6824 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6825 data[4] = 0x02; /* per-pool */ 6826 data += phdr->param_len; 6827 } 6828 6829 if (lun->backend->lun_attr != NULL && 6830 (val = lun->backend->lun_attr(lun->be_lun, "poolblocksused")) 6831 != UINT64_MAX) { 6832 phdr = (struct scsi_log_param_header *)data; 6833 scsi_ulto2b(0x00f2, phdr->param_code); 6834 phdr->param_control = SLP_LBIN | SLP_LP; 6835 phdr->param_len = 8; 6836 data = (uint8_t *)(phdr + 1); 6837 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6838 data[4] = 0x02; /* per-pool */ 6839 data += phdr->param_len; 6840 } 6841 6842 page_index->page_len = data - page_index->page_data; 6843 return (0); 6844 } 6845 6846 int 6847 ctl_sap_log_sense_handler(struct ctl_scsiio *ctsio, 6848 struct ctl_page_index *page_index, 6849 int pc) 6850 { 6851 struct ctl_lun *lun = CTL_LUN(ctsio); 6852 struct stat_page *data; 6853 struct bintime *t; 6854 6855 data = (struct stat_page *)page_index->page_data; 6856 6857 scsi_ulto2b(SLP_SAP, data->sap.hdr.param_code); 6858 data->sap.hdr.param_control = SLP_LBIN; 6859 data->sap.hdr.param_len = sizeof(struct scsi_log_stat_and_perf) - 6860 sizeof(struct scsi_log_param_header); 6861 scsi_u64to8b(lun->stats.operations[CTL_STATS_READ], 6862 data->sap.read_num); 6863 scsi_u64to8b(lun->stats.operations[CTL_STATS_WRITE], 6864 data->sap.write_num); 6865 if (lun->be_lun->blocksize > 0) { 6866 scsi_u64to8b(lun->stats.bytes[CTL_STATS_WRITE] / 6867 lun->be_lun->blocksize, data->sap.recvieved_lba); 6868 scsi_u64to8b(lun->stats.bytes[CTL_STATS_READ] / 6869 lun->be_lun->blocksize, data->sap.transmitted_lba); 6870 } 6871 t = &lun->stats.time[CTL_STATS_READ]; 6872 scsi_u64to8b((uint64_t)t->sec * 1000 + t->frac / (UINT64_MAX / 1000), 6873 data->sap.read_int); 6874 t = &lun->stats.time[CTL_STATS_WRITE]; 6875 scsi_u64to8b((uint64_t)t->sec * 1000 + t->frac / (UINT64_MAX / 1000), 6876 data->sap.write_int); 6877 scsi_u64to8b(0, data->sap.weighted_num); 6878 scsi_u64to8b(0, data->sap.weighted_int); 6879 scsi_ulto2b(SLP_IT, data->it.hdr.param_code); 6880 data->it.hdr.param_control = SLP_LBIN; 6881 data->it.hdr.param_len = sizeof(struct scsi_log_idle_time) - 6882 sizeof(struct scsi_log_param_header); 6883 #ifdef CTL_TIME_IO 6884 scsi_u64to8b(lun->idle_time / SBT_1MS, data->it.idle_int); 6885 #endif 6886 scsi_ulto2b(SLP_TI, data->ti.hdr.param_code); 6887 data->it.hdr.param_control = SLP_LBIN; 6888 data->ti.hdr.param_len = sizeof(struct scsi_log_time_interval) - 6889 sizeof(struct scsi_log_param_header); 6890 scsi_ulto4b(3, data->ti.exponent); 6891 scsi_ulto4b(1, data->ti.integer); 6892 return (0); 6893 } 6894 6895 int 6896 ctl_ie_log_sense_handler(struct ctl_scsiio *ctsio, 6897 struct ctl_page_index *page_index, 6898 int pc) 6899 { 6900 struct ctl_lun *lun = CTL_LUN(ctsio); 6901 struct scsi_log_informational_exceptions *data; 6902 const char *value; 6903 6904 data = (struct scsi_log_informational_exceptions *)page_index->page_data; 6905 6906 scsi_ulto2b(SLP_IE_GEN, data->hdr.param_code); 6907 data->hdr.param_control = SLP_LBIN; 6908 data->hdr.param_len = sizeof(struct scsi_log_informational_exceptions) - 6909 sizeof(struct scsi_log_param_header); 6910 data->ie_asc = lun->ie_asc; 6911 data->ie_ascq = lun->ie_ascq; 6912 if ((value = dnvlist_get_string(lun->be_lun->options, "temperature", 6913 NULL)) != NULL) 6914 data->temperature = strtol(value, NULL, 0); 6915 else 6916 data->temperature = 0xff; 6917 return (0); 6918 } 6919 6920 int 6921 ctl_log_sense(struct ctl_scsiio *ctsio) 6922 { 6923 struct ctl_lun *lun = CTL_LUN(ctsio); 6924 int i, pc, page_code, subpage; 6925 int alloc_len, total_len; 6926 struct ctl_page_index *page_index; 6927 struct scsi_log_sense *cdb; 6928 struct scsi_log_header *header; 6929 6930 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 6931 6932 cdb = (struct scsi_log_sense *)ctsio->cdb; 6933 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 6934 page_code = cdb->page & SLS_PAGE_CODE; 6935 subpage = cdb->subpage; 6936 alloc_len = scsi_2btoul(cdb->length); 6937 6938 page_index = NULL; 6939 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 6940 page_index = &lun->log_pages.index[i]; 6941 6942 /* Look for the right page code */ 6943 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 6944 continue; 6945 6946 /* Look for the right subpage or the subpage wildcard*/ 6947 if (page_index->subpage != subpage) 6948 continue; 6949 6950 break; 6951 } 6952 if (i >= CTL_NUM_LOG_PAGES) { 6953 ctl_set_invalid_field(ctsio, 6954 /*sks_valid*/ 1, 6955 /*command*/ 1, 6956 /*field*/ 2, 6957 /*bit_valid*/ 0, 6958 /*bit*/ 0); 6959 ctl_done((union ctl_io *)ctsio); 6960 return (CTL_RETVAL_COMPLETE); 6961 } 6962 6963 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 6964 6965 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6966 ctsio->kern_sg_entries = 0; 6967 ctsio->kern_rel_offset = 0; 6968 ctsio->kern_data_len = min(total_len, alloc_len); 6969 ctsio->kern_total_len = ctsio->kern_data_len; 6970 6971 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 6972 header->page = page_index->page_code; 6973 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING) 6974 header->page |= SL_DS; 6975 if (page_index->subpage) { 6976 header->page |= SL_SPF; 6977 header->subpage = page_index->subpage; 6978 } 6979 scsi_ulto2b(page_index->page_len, header->datalen); 6980 6981 /* 6982 * Call the handler, if it exists, to update the 6983 * page to the latest values. 6984 */ 6985 if (page_index->sense_handler != NULL) 6986 page_index->sense_handler(ctsio, page_index, pc); 6987 6988 memcpy(header + 1, page_index->page_data, page_index->page_len); 6989 6990 ctl_set_success(ctsio); 6991 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6992 ctsio->be_move_done = ctl_config_move_done; 6993 ctl_datamove((union ctl_io *)ctsio); 6994 return (CTL_RETVAL_COMPLETE); 6995 } 6996 6997 int 6998 ctl_read_capacity(struct ctl_scsiio *ctsio) 6999 { 7000 struct ctl_lun *lun = CTL_LUN(ctsio); 7001 struct scsi_read_capacity *cdb; 7002 struct scsi_read_capacity_data *data; 7003 uint32_t lba; 7004 7005 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 7006 7007 cdb = (struct scsi_read_capacity *)ctsio->cdb; 7008 7009 lba = scsi_4btoul(cdb->addr); 7010 if (((cdb->pmi & SRC_PMI) == 0) 7011 && (lba != 0)) { 7012 ctl_set_invalid_field(/*ctsio*/ ctsio, 7013 /*sks_valid*/ 1, 7014 /*command*/ 1, 7015 /*field*/ 2, 7016 /*bit_valid*/ 0, 7017 /*bit*/ 0); 7018 ctl_done((union ctl_io *)ctsio); 7019 return (CTL_RETVAL_COMPLETE); 7020 } 7021 7022 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7023 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 7024 ctsio->kern_data_len = sizeof(*data); 7025 ctsio->kern_total_len = sizeof(*data); 7026 ctsio->kern_rel_offset = 0; 7027 ctsio->kern_sg_entries = 0; 7028 7029 /* 7030 * If the maximum LBA is greater than 0xfffffffe, the user must 7031 * issue a SERVICE ACTION IN (16) command, with the read capacity 7032 * serivce action set. 7033 */ 7034 if (lun->be_lun->maxlba > 0xfffffffe) 7035 scsi_ulto4b(0xffffffff, data->addr); 7036 else 7037 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 7038 7039 /* 7040 * XXX KDM this may not be 512 bytes... 7041 */ 7042 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7043 7044 ctl_set_success(ctsio); 7045 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7046 ctsio->be_move_done = ctl_config_move_done; 7047 ctl_datamove((union ctl_io *)ctsio); 7048 return (CTL_RETVAL_COMPLETE); 7049 } 7050 7051 int 7052 ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7053 { 7054 struct ctl_lun *lun = CTL_LUN(ctsio); 7055 struct scsi_read_capacity_16 *cdb; 7056 struct scsi_read_capacity_data_long *data; 7057 uint64_t lba; 7058 uint32_t alloc_len; 7059 7060 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7061 7062 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7063 7064 alloc_len = scsi_4btoul(cdb->alloc_len); 7065 lba = scsi_8btou64(cdb->addr); 7066 7067 if ((cdb->reladr & SRC16_PMI) 7068 && (lba != 0)) { 7069 ctl_set_invalid_field(/*ctsio*/ ctsio, 7070 /*sks_valid*/ 1, 7071 /*command*/ 1, 7072 /*field*/ 2, 7073 /*bit_valid*/ 0, 7074 /*bit*/ 0); 7075 ctl_done((union ctl_io *)ctsio); 7076 return (CTL_RETVAL_COMPLETE); 7077 } 7078 7079 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7080 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7081 ctsio->kern_rel_offset = 0; 7082 ctsio->kern_sg_entries = 0; 7083 ctsio->kern_data_len = min(sizeof(*data), alloc_len); 7084 ctsio->kern_total_len = ctsio->kern_data_len; 7085 7086 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7087 /* XXX KDM this may not be 512 bytes... */ 7088 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7089 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7090 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7091 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7092 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7093 7094 ctl_set_success(ctsio); 7095 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7096 ctsio->be_move_done = ctl_config_move_done; 7097 ctl_datamove((union ctl_io *)ctsio); 7098 return (CTL_RETVAL_COMPLETE); 7099 } 7100 7101 int 7102 ctl_get_lba_status(struct ctl_scsiio *ctsio) 7103 { 7104 struct ctl_lun *lun = CTL_LUN(ctsio); 7105 struct scsi_get_lba_status *cdb; 7106 struct scsi_get_lba_status_data *data; 7107 struct ctl_lba_len_flags *lbalen; 7108 uint64_t lba; 7109 uint32_t alloc_len, total_len; 7110 int retval; 7111 7112 CTL_DEBUG_PRINT(("ctl_get_lba_status\n")); 7113 7114 cdb = (struct scsi_get_lba_status *)ctsio->cdb; 7115 lba = scsi_8btou64(cdb->addr); 7116 alloc_len = scsi_4btoul(cdb->alloc_len); 7117 7118 if (lba > lun->be_lun->maxlba) { 7119 ctl_set_lba_out_of_range(ctsio, lba); 7120 ctl_done((union ctl_io *)ctsio); 7121 return (CTL_RETVAL_COMPLETE); 7122 } 7123 7124 total_len = sizeof(*data) + sizeof(data->descr[0]); 7125 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7126 data = (struct scsi_get_lba_status_data *)ctsio->kern_data_ptr; 7127 ctsio->kern_rel_offset = 0; 7128 ctsio->kern_sg_entries = 0; 7129 ctsio->kern_data_len = min(total_len, alloc_len); 7130 ctsio->kern_total_len = ctsio->kern_data_len; 7131 7132 /* Fill dummy data in case backend can't tell anything. */ 7133 scsi_ulto4b(4 + sizeof(data->descr[0]), data->length); 7134 scsi_u64to8b(lba, data->descr[0].addr); 7135 scsi_ulto4b(MIN(UINT32_MAX, lun->be_lun->maxlba + 1 - lba), 7136 data->descr[0].length); 7137 data->descr[0].status = 0; /* Mapped or unknown. */ 7138 7139 ctl_set_success(ctsio); 7140 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7141 ctsio->be_move_done = ctl_config_move_done; 7142 7143 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 7144 lbalen->lba = lba; 7145 lbalen->len = total_len; 7146 lbalen->flags = 0; 7147 retval = lun->backend->config_read((union ctl_io *)ctsio); 7148 return (retval); 7149 } 7150 7151 int 7152 ctl_read_defect(struct ctl_scsiio *ctsio) 7153 { 7154 struct scsi_read_defect_data_10 *ccb10; 7155 struct scsi_read_defect_data_12 *ccb12; 7156 struct scsi_read_defect_data_hdr_10 *data10; 7157 struct scsi_read_defect_data_hdr_12 *data12; 7158 uint32_t alloc_len, data_len; 7159 uint8_t format; 7160 7161 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7162 7163 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7164 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7165 format = ccb10->format; 7166 alloc_len = scsi_2btoul(ccb10->alloc_length); 7167 data_len = sizeof(*data10); 7168 } else { 7169 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7170 format = ccb12->format; 7171 alloc_len = scsi_4btoul(ccb12->alloc_length); 7172 data_len = sizeof(*data12); 7173 } 7174 if (alloc_len == 0) { 7175 ctl_set_success(ctsio); 7176 ctl_done((union ctl_io *)ctsio); 7177 return (CTL_RETVAL_COMPLETE); 7178 } 7179 7180 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7181 ctsio->kern_rel_offset = 0; 7182 ctsio->kern_sg_entries = 0; 7183 ctsio->kern_data_len = min(data_len, alloc_len); 7184 ctsio->kern_total_len = ctsio->kern_data_len; 7185 7186 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7187 data10 = (struct scsi_read_defect_data_hdr_10 *) 7188 ctsio->kern_data_ptr; 7189 data10->format = format; 7190 scsi_ulto2b(0, data10->length); 7191 } else { 7192 data12 = (struct scsi_read_defect_data_hdr_12 *) 7193 ctsio->kern_data_ptr; 7194 data12->format = format; 7195 scsi_ulto2b(0, data12->generation); 7196 scsi_ulto4b(0, data12->length); 7197 } 7198 7199 ctl_set_success(ctsio); 7200 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7201 ctsio->be_move_done = ctl_config_move_done; 7202 ctl_datamove((union ctl_io *)ctsio); 7203 return (CTL_RETVAL_COMPLETE); 7204 } 7205 7206 int 7207 ctl_report_ident_info(struct ctl_scsiio *ctsio) 7208 { 7209 struct ctl_lun *lun = CTL_LUN(ctsio); 7210 struct scsi_report_ident_info *cdb; 7211 struct scsi_report_ident_info_data *rii_ptr; 7212 struct scsi_report_ident_info_descr *riid_ptr; 7213 const char *oii, *otii; 7214 int retval, alloc_len, total_len = 0, len = 0; 7215 7216 CTL_DEBUG_PRINT(("ctl_report_ident_info\n")); 7217 7218 cdb = (struct scsi_report_ident_info *)ctsio->cdb; 7219 retval = CTL_RETVAL_COMPLETE; 7220 7221 total_len = sizeof(struct scsi_report_ident_info_data); 7222 switch (cdb->type) { 7223 case RII_LUII: 7224 oii = dnvlist_get_string(lun->be_lun->options, 7225 "ident_info", NULL); 7226 if (oii) 7227 len = strlen(oii); /* Approximately */ 7228 break; 7229 case RII_LUTII: 7230 otii = dnvlist_get_string(lun->be_lun->options, 7231 "text_ident_info", NULL); 7232 if (otii) 7233 len = strlen(otii) + 1; /* NULL-terminated */ 7234 break; 7235 case RII_IIS: 7236 len = 2 * sizeof(struct scsi_report_ident_info_descr); 7237 break; 7238 default: 7239 ctl_set_invalid_field(/*ctsio*/ ctsio, 7240 /*sks_valid*/ 1, 7241 /*command*/ 1, 7242 /*field*/ 11, 7243 /*bit_valid*/ 1, 7244 /*bit*/ 2); 7245 ctl_done((union ctl_io *)ctsio); 7246 return(retval); 7247 } 7248 total_len += len; 7249 alloc_len = scsi_4btoul(cdb->length); 7250 7251 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7252 ctsio->kern_sg_entries = 0; 7253 ctsio->kern_rel_offset = 0; 7254 ctsio->kern_data_len = min(total_len, alloc_len); 7255 ctsio->kern_total_len = ctsio->kern_data_len; 7256 7257 rii_ptr = (struct scsi_report_ident_info_data *)ctsio->kern_data_ptr; 7258 switch (cdb->type) { 7259 case RII_LUII: 7260 if (oii) { 7261 if (oii[0] == '0' && oii[1] == 'x') 7262 len = hex2bin(oii, (uint8_t *)(rii_ptr + 1), len); 7263 else 7264 strncpy((uint8_t *)(rii_ptr + 1), oii, len); 7265 } 7266 break; 7267 case RII_LUTII: 7268 if (otii) 7269 strlcpy((uint8_t *)(rii_ptr + 1), otii, len); 7270 break; 7271 case RII_IIS: 7272 riid_ptr = (struct scsi_report_ident_info_descr *)(rii_ptr + 1); 7273 riid_ptr->type = RII_LUII; 7274 scsi_ulto2b(0xffff, riid_ptr->length); 7275 riid_ptr++; 7276 riid_ptr->type = RII_LUTII; 7277 scsi_ulto2b(0xffff, riid_ptr->length); 7278 } 7279 scsi_ulto2b(len, rii_ptr->length); 7280 7281 ctl_set_success(ctsio); 7282 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7283 ctsio->be_move_done = ctl_config_move_done; 7284 ctl_datamove((union ctl_io *)ctsio); 7285 return(retval); 7286 } 7287 7288 int 7289 ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7290 { 7291 struct ctl_softc *softc = CTL_SOFTC(ctsio); 7292 struct ctl_lun *lun = CTL_LUN(ctsio); 7293 struct scsi_maintenance_in *cdb; 7294 int retval; 7295 int alloc_len, ext, total_len = 0, g, pc, pg, ts, os; 7296 int num_ha_groups, num_target_ports, shared_group; 7297 struct ctl_port *port; 7298 struct scsi_target_group_data *rtg_ptr; 7299 struct scsi_target_group_data_extended *rtg_ext_ptr; 7300 struct scsi_target_port_group_descriptor *tpg_desc; 7301 7302 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7303 7304 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7305 retval = CTL_RETVAL_COMPLETE; 7306 7307 switch (cdb->byte2 & STG_PDF_MASK) { 7308 case STG_PDF_LENGTH: 7309 ext = 0; 7310 break; 7311 case STG_PDF_EXTENDED: 7312 ext = 1; 7313 break; 7314 default: 7315 ctl_set_invalid_field(/*ctsio*/ ctsio, 7316 /*sks_valid*/ 1, 7317 /*command*/ 1, 7318 /*field*/ 2, 7319 /*bit_valid*/ 1, 7320 /*bit*/ 5); 7321 ctl_done((union ctl_io *)ctsio); 7322 return(retval); 7323 } 7324 7325 num_target_ports = 0; 7326 shared_group = (softc->is_single != 0); 7327 mtx_lock(&softc->ctl_lock); 7328 STAILQ_FOREACH(port, &softc->port_list, links) { 7329 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7330 continue; 7331 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 7332 continue; 7333 num_target_ports++; 7334 if (port->status & CTL_PORT_STATUS_HA_SHARED) 7335 shared_group = 1; 7336 } 7337 mtx_unlock(&softc->ctl_lock); 7338 num_ha_groups = (softc->is_single) ? 0 : NUM_HA_SHELVES; 7339 7340 if (ext) 7341 total_len = sizeof(struct scsi_target_group_data_extended); 7342 else 7343 total_len = sizeof(struct scsi_target_group_data); 7344 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7345 (shared_group + num_ha_groups) + 7346 sizeof(struct scsi_target_port_descriptor) * num_target_ports; 7347 7348 alloc_len = scsi_4btoul(cdb->length); 7349 7350 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7351 ctsio->kern_sg_entries = 0; 7352 ctsio->kern_rel_offset = 0; 7353 ctsio->kern_data_len = min(total_len, alloc_len); 7354 ctsio->kern_total_len = ctsio->kern_data_len; 7355 7356 if (ext) { 7357 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7358 ctsio->kern_data_ptr; 7359 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7360 rtg_ext_ptr->format_type = 0x10; 7361 rtg_ext_ptr->implicit_transition_time = 0; 7362 tpg_desc = &rtg_ext_ptr->groups[0]; 7363 } else { 7364 rtg_ptr = (struct scsi_target_group_data *) 7365 ctsio->kern_data_ptr; 7366 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7367 tpg_desc = &rtg_ptr->groups[0]; 7368 } 7369 7370 mtx_lock(&softc->ctl_lock); 7371 pg = softc->port_min / softc->port_cnt; 7372 if (lun->flags & (CTL_LUN_PRIMARY_SC | CTL_LUN_PEER_SC_PRIMARY)) { 7373 /* Some shelf is known to be primary. */ 7374 if (softc->ha_link == CTL_HA_LINK_OFFLINE) 7375 os = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7376 else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) 7377 os = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7378 else if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) 7379 os = TPG_ASYMMETRIC_ACCESS_STANDBY; 7380 else 7381 os = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7382 if (lun->flags & CTL_LUN_PRIMARY_SC) { 7383 ts = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7384 } else { 7385 ts = os; 7386 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7387 } 7388 } else { 7389 /* No known primary shelf. */ 7390 if (softc->ha_link == CTL_HA_LINK_OFFLINE) { 7391 ts = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7392 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7393 } else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) { 7394 ts = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7395 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7396 } else { 7397 ts = os = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7398 } 7399 } 7400 if (shared_group) { 7401 tpg_desc->pref_state = ts; 7402 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7403 TPG_U_SUP | TPG_T_SUP; 7404 scsi_ulto2b(1, tpg_desc->target_port_group); 7405 tpg_desc->status = TPG_IMPLICIT; 7406 pc = 0; 7407 STAILQ_FOREACH(port, &softc->port_list, links) { 7408 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7409 continue; 7410 if (!softc->is_single && 7411 (port->status & CTL_PORT_STATUS_HA_SHARED) == 0) 7412 continue; 7413 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 7414 continue; 7415 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7416 relative_target_port_identifier); 7417 pc++; 7418 } 7419 tpg_desc->target_port_count = pc; 7420 tpg_desc = (struct scsi_target_port_group_descriptor *) 7421 &tpg_desc->descriptors[pc]; 7422 } 7423 for (g = 0; g < num_ha_groups; g++) { 7424 tpg_desc->pref_state = (g == pg) ? ts : os; 7425 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7426 TPG_U_SUP | TPG_T_SUP; 7427 scsi_ulto2b(2 + g, tpg_desc->target_port_group); 7428 tpg_desc->status = TPG_IMPLICIT; 7429 pc = 0; 7430 STAILQ_FOREACH(port, &softc->port_list, links) { 7431 if (port->targ_port < g * softc->port_cnt || 7432 port->targ_port >= (g + 1) * softc->port_cnt) 7433 continue; 7434 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7435 continue; 7436 if (port->status & CTL_PORT_STATUS_HA_SHARED) 7437 continue; 7438 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 7439 continue; 7440 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7441 relative_target_port_identifier); 7442 pc++; 7443 } 7444 tpg_desc->target_port_count = pc; 7445 tpg_desc = (struct scsi_target_port_group_descriptor *) 7446 &tpg_desc->descriptors[pc]; 7447 } 7448 mtx_unlock(&softc->ctl_lock); 7449 7450 ctl_set_success(ctsio); 7451 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7452 ctsio->be_move_done = ctl_config_move_done; 7453 ctl_datamove((union ctl_io *)ctsio); 7454 return(retval); 7455 } 7456 7457 int 7458 ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7459 { 7460 struct ctl_lun *lun = CTL_LUN(ctsio); 7461 struct scsi_report_supported_opcodes *cdb; 7462 const struct ctl_cmd_entry *entry, *sentry; 7463 struct scsi_report_supported_opcodes_all *all; 7464 struct scsi_report_supported_opcodes_descr *descr; 7465 struct scsi_report_supported_opcodes_one *one; 7466 int retval; 7467 int alloc_len, total_len; 7468 int opcode, service_action, i, j, num; 7469 7470 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7471 7472 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7473 retval = CTL_RETVAL_COMPLETE; 7474 7475 opcode = cdb->requested_opcode; 7476 service_action = scsi_2btoul(cdb->requested_service_action); 7477 switch (cdb->options & RSO_OPTIONS_MASK) { 7478 case RSO_OPTIONS_ALL: 7479 num = 0; 7480 for (i = 0; i < 256; i++) { 7481 entry = &ctl_cmd_table[i]; 7482 if (entry->flags & CTL_CMD_FLAG_SA5) { 7483 for (j = 0; j < 32; j++) { 7484 sentry = &((const struct ctl_cmd_entry *) 7485 entry->execute)[j]; 7486 if (ctl_cmd_applicable( 7487 lun->be_lun->lun_type, sentry)) 7488 num++; 7489 } 7490 } else { 7491 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7492 entry)) 7493 num++; 7494 } 7495 } 7496 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7497 num * sizeof(struct scsi_report_supported_opcodes_descr); 7498 break; 7499 case RSO_OPTIONS_OC: 7500 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7501 ctl_set_invalid_field(/*ctsio*/ ctsio, 7502 /*sks_valid*/ 1, 7503 /*command*/ 1, 7504 /*field*/ 2, 7505 /*bit_valid*/ 1, 7506 /*bit*/ 2); 7507 ctl_done((union ctl_io *)ctsio); 7508 return (CTL_RETVAL_COMPLETE); 7509 } 7510 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7511 break; 7512 case RSO_OPTIONS_OC_SA: 7513 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7514 service_action >= 32) { 7515 ctl_set_invalid_field(/*ctsio*/ ctsio, 7516 /*sks_valid*/ 1, 7517 /*command*/ 1, 7518 /*field*/ 2, 7519 /*bit_valid*/ 1, 7520 /*bit*/ 2); 7521 ctl_done((union ctl_io *)ctsio); 7522 return (CTL_RETVAL_COMPLETE); 7523 } 7524 /* FALLTHROUGH */ 7525 case RSO_OPTIONS_OC_ASA: 7526 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7527 break; 7528 default: 7529 ctl_set_invalid_field(/*ctsio*/ ctsio, 7530 /*sks_valid*/ 1, 7531 /*command*/ 1, 7532 /*field*/ 2, 7533 /*bit_valid*/ 1, 7534 /*bit*/ 2); 7535 ctl_done((union ctl_io *)ctsio); 7536 return (CTL_RETVAL_COMPLETE); 7537 } 7538 7539 alloc_len = scsi_4btoul(cdb->length); 7540 7541 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7542 ctsio->kern_sg_entries = 0; 7543 ctsio->kern_rel_offset = 0; 7544 ctsio->kern_data_len = min(total_len, alloc_len); 7545 ctsio->kern_total_len = ctsio->kern_data_len; 7546 7547 switch (cdb->options & RSO_OPTIONS_MASK) { 7548 case RSO_OPTIONS_ALL: 7549 all = (struct scsi_report_supported_opcodes_all *) 7550 ctsio->kern_data_ptr; 7551 num = 0; 7552 for (i = 0; i < 256; i++) { 7553 entry = &ctl_cmd_table[i]; 7554 if (entry->flags & CTL_CMD_FLAG_SA5) { 7555 for (j = 0; j < 32; j++) { 7556 sentry = &((const struct ctl_cmd_entry *) 7557 entry->execute)[j]; 7558 if (!ctl_cmd_applicable( 7559 lun->be_lun->lun_type, sentry)) 7560 continue; 7561 descr = &all->descr[num++]; 7562 descr->opcode = i; 7563 scsi_ulto2b(j, descr->service_action); 7564 descr->flags = RSO_SERVACTV; 7565 scsi_ulto2b(sentry->length, 7566 descr->cdb_length); 7567 } 7568 } else { 7569 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7570 entry)) 7571 continue; 7572 descr = &all->descr[num++]; 7573 descr->opcode = i; 7574 scsi_ulto2b(0, descr->service_action); 7575 descr->flags = 0; 7576 scsi_ulto2b(entry->length, descr->cdb_length); 7577 } 7578 } 7579 scsi_ulto4b( 7580 num * sizeof(struct scsi_report_supported_opcodes_descr), 7581 all->length); 7582 break; 7583 case RSO_OPTIONS_OC: 7584 one = (struct scsi_report_supported_opcodes_one *) 7585 ctsio->kern_data_ptr; 7586 entry = &ctl_cmd_table[opcode]; 7587 goto fill_one; 7588 case RSO_OPTIONS_OC_SA: 7589 one = (struct scsi_report_supported_opcodes_one *) 7590 ctsio->kern_data_ptr; 7591 entry = &ctl_cmd_table[opcode]; 7592 entry = &((const struct ctl_cmd_entry *) 7593 entry->execute)[service_action]; 7594 fill_one: 7595 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7596 one->support = 3; 7597 scsi_ulto2b(entry->length, one->cdb_length); 7598 one->cdb_usage[0] = opcode; 7599 memcpy(&one->cdb_usage[1], entry->usage, 7600 entry->length - 1); 7601 } else 7602 one->support = 1; 7603 break; 7604 case RSO_OPTIONS_OC_ASA: 7605 one = (struct scsi_report_supported_opcodes_one *) 7606 ctsio->kern_data_ptr; 7607 entry = &ctl_cmd_table[opcode]; 7608 if (entry->flags & CTL_CMD_FLAG_SA5) { 7609 entry = &((const struct ctl_cmd_entry *) 7610 entry->execute)[service_action]; 7611 } else if (service_action != 0) { 7612 one->support = 1; 7613 break; 7614 } 7615 goto fill_one; 7616 } 7617 7618 ctl_set_success(ctsio); 7619 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7620 ctsio->be_move_done = ctl_config_move_done; 7621 ctl_datamove((union ctl_io *)ctsio); 7622 return(retval); 7623 } 7624 7625 int 7626 ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7627 { 7628 struct scsi_report_supported_tmf *cdb; 7629 struct scsi_report_supported_tmf_ext_data *data; 7630 int retval; 7631 int alloc_len, total_len; 7632 7633 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7634 7635 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7636 7637 retval = CTL_RETVAL_COMPLETE; 7638 7639 if (cdb->options & RST_REPD) 7640 total_len = sizeof(struct scsi_report_supported_tmf_ext_data); 7641 else 7642 total_len = sizeof(struct scsi_report_supported_tmf_data); 7643 alloc_len = scsi_4btoul(cdb->length); 7644 7645 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7646 ctsio->kern_sg_entries = 0; 7647 ctsio->kern_rel_offset = 0; 7648 ctsio->kern_data_len = min(total_len, alloc_len); 7649 ctsio->kern_total_len = ctsio->kern_data_len; 7650 7651 data = (struct scsi_report_supported_tmf_ext_data *)ctsio->kern_data_ptr; 7652 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_QTS | 7653 RST_TRS; 7654 data->byte2 |= RST_QAES | RST_QTSS | RST_ITNRS; 7655 data->length = total_len - 4; 7656 7657 ctl_set_success(ctsio); 7658 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7659 ctsio->be_move_done = ctl_config_move_done; 7660 ctl_datamove((union ctl_io *)ctsio); 7661 return (retval); 7662 } 7663 7664 int 7665 ctl_report_timestamp(struct ctl_scsiio *ctsio) 7666 { 7667 struct scsi_report_timestamp *cdb; 7668 struct scsi_report_timestamp_data *data; 7669 struct timeval tv; 7670 int64_t timestamp; 7671 int retval; 7672 int alloc_len, total_len; 7673 7674 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7675 7676 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7677 7678 retval = CTL_RETVAL_COMPLETE; 7679 7680 total_len = sizeof(struct scsi_report_timestamp_data); 7681 alloc_len = scsi_4btoul(cdb->length); 7682 7683 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7684 ctsio->kern_sg_entries = 0; 7685 ctsio->kern_rel_offset = 0; 7686 ctsio->kern_data_len = min(total_len, alloc_len); 7687 ctsio->kern_total_len = ctsio->kern_data_len; 7688 7689 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7690 scsi_ulto2b(sizeof(*data) - 2, data->length); 7691 data->origin = RTS_ORIG_OUTSIDE; 7692 getmicrotime(&tv); 7693 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7694 scsi_ulto4b(timestamp >> 16, data->timestamp); 7695 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7696 7697 ctl_set_success(ctsio); 7698 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7699 ctsio->be_move_done = ctl_config_move_done; 7700 ctl_datamove((union ctl_io *)ctsio); 7701 return (retval); 7702 } 7703 7704 int 7705 ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7706 { 7707 struct ctl_softc *softc = CTL_SOFTC(ctsio); 7708 struct ctl_lun *lun = CTL_LUN(ctsio); 7709 struct scsi_per_res_in *cdb; 7710 int alloc_len, total_len = 0; 7711 /* struct scsi_per_res_in_rsrv in_data; */ 7712 uint64_t key; 7713 7714 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7715 7716 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7717 7718 alloc_len = scsi_2btoul(cdb->length); 7719 7720 retry: 7721 mtx_lock(&lun->lun_lock); 7722 switch (cdb->action) { 7723 case SPRI_RK: /* read keys */ 7724 total_len = sizeof(struct scsi_per_res_in_keys) + 7725 lun->pr_key_count * 7726 sizeof(struct scsi_per_res_key); 7727 break; 7728 case SPRI_RR: /* read reservation */ 7729 if (lun->flags & CTL_LUN_PR_RESERVED) 7730 total_len = sizeof(struct scsi_per_res_in_rsrv); 7731 else 7732 total_len = sizeof(struct scsi_per_res_in_header); 7733 break; 7734 case SPRI_RC: /* report capabilities */ 7735 total_len = sizeof(struct scsi_per_res_cap); 7736 break; 7737 case SPRI_RS: /* read full status */ 7738 total_len = sizeof(struct scsi_per_res_in_header) + 7739 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7740 lun->pr_key_count; 7741 break; 7742 default: 7743 panic("%s: Invalid PR type %#x", __func__, cdb->action); 7744 } 7745 mtx_unlock(&lun->lun_lock); 7746 7747 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7748 ctsio->kern_rel_offset = 0; 7749 ctsio->kern_sg_entries = 0; 7750 ctsio->kern_data_len = min(total_len, alloc_len); 7751 ctsio->kern_total_len = ctsio->kern_data_len; 7752 7753 mtx_lock(&lun->lun_lock); 7754 switch (cdb->action) { 7755 case SPRI_RK: { // read keys 7756 struct scsi_per_res_in_keys *res_keys; 7757 int i, key_count; 7758 7759 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7760 7761 /* 7762 * We had to drop the lock to allocate our buffer, which 7763 * leaves time for someone to come in with another 7764 * persistent reservation. (That is unlikely, though, 7765 * since this should be the only persistent reservation 7766 * command active right now.) 7767 */ 7768 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7769 (lun->pr_key_count * 7770 sizeof(struct scsi_per_res_key)))){ 7771 mtx_unlock(&lun->lun_lock); 7772 free(ctsio->kern_data_ptr, M_CTL); 7773 printf("%s: reservation length changed, retrying\n", 7774 __func__); 7775 goto retry; 7776 } 7777 7778 scsi_ulto4b(lun->pr_generation, res_keys->header.generation); 7779 7780 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7781 lun->pr_key_count, res_keys->header.length); 7782 7783 for (i = 0, key_count = 0; i < CTL_MAX_INITIATORS; i++) { 7784 if ((key = ctl_get_prkey(lun, i)) == 0) 7785 continue; 7786 7787 /* 7788 * We used lun->pr_key_count to calculate the 7789 * size to allocate. If it turns out the number of 7790 * initiators with the registered flag set is 7791 * larger than that (i.e. they haven't been kept in 7792 * sync), we've got a problem. 7793 */ 7794 if (key_count >= lun->pr_key_count) { 7795 key_count++; 7796 continue; 7797 } 7798 scsi_u64to8b(key, res_keys->keys[key_count].key); 7799 key_count++; 7800 } 7801 break; 7802 } 7803 case SPRI_RR: { // read reservation 7804 struct scsi_per_res_in_rsrv *res; 7805 int tmp_len, header_only; 7806 7807 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7808 7809 scsi_ulto4b(lun->pr_generation, res->header.generation); 7810 7811 if (lun->flags & CTL_LUN_PR_RESERVED) 7812 { 7813 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7814 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7815 res->header.length); 7816 header_only = 0; 7817 } else { 7818 tmp_len = sizeof(struct scsi_per_res_in_header); 7819 scsi_ulto4b(0, res->header.length); 7820 header_only = 1; 7821 } 7822 7823 /* 7824 * We had to drop the lock to allocate our buffer, which 7825 * leaves time for someone to come in with another 7826 * persistent reservation. (That is unlikely, though, 7827 * since this should be the only persistent reservation 7828 * command active right now.) 7829 */ 7830 if (tmp_len != total_len) { 7831 mtx_unlock(&lun->lun_lock); 7832 free(ctsio->kern_data_ptr, M_CTL); 7833 printf("%s: reservation status changed, retrying\n", 7834 __func__); 7835 goto retry; 7836 } 7837 7838 /* 7839 * No reservation held, so we're done. 7840 */ 7841 if (header_only != 0) 7842 break; 7843 7844 /* 7845 * If the registration is an All Registrants type, the key 7846 * is 0, since it doesn't really matter. 7847 */ 7848 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7849 scsi_u64to8b(ctl_get_prkey(lun, lun->pr_res_idx), 7850 res->data.reservation); 7851 } 7852 res->data.scopetype = lun->pr_res_type; 7853 break; 7854 } 7855 case SPRI_RC: //report capabilities 7856 { 7857 struct scsi_per_res_cap *res_cap; 7858 uint16_t type_mask; 7859 7860 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7861 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7862 res_cap->flags1 = SPRI_CRH; 7863 res_cap->flags2 = SPRI_TMV | SPRI_ALLOW_5; 7864 type_mask = SPRI_TM_WR_EX_AR | 7865 SPRI_TM_EX_AC_RO | 7866 SPRI_TM_WR_EX_RO | 7867 SPRI_TM_EX_AC | 7868 SPRI_TM_WR_EX | 7869 SPRI_TM_EX_AC_AR; 7870 scsi_ulto2b(type_mask, res_cap->type_mask); 7871 break; 7872 } 7873 case SPRI_RS: { // read full status 7874 struct scsi_per_res_in_full *res_status; 7875 struct scsi_per_res_in_full_desc *res_desc; 7876 struct ctl_port *port; 7877 int i, len; 7878 7879 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7880 7881 /* 7882 * We had to drop the lock to allocate our buffer, which 7883 * leaves time for someone to come in with another 7884 * persistent reservation. (That is unlikely, though, 7885 * since this should be the only persistent reservation 7886 * command active right now.) 7887 */ 7888 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7889 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7890 lun->pr_key_count)){ 7891 mtx_unlock(&lun->lun_lock); 7892 free(ctsio->kern_data_ptr, M_CTL); 7893 printf("%s: reservation length changed, retrying\n", 7894 __func__); 7895 goto retry; 7896 } 7897 7898 scsi_ulto4b(lun->pr_generation, res_status->header.generation); 7899 7900 res_desc = &res_status->desc[0]; 7901 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7902 if ((key = ctl_get_prkey(lun, i)) == 0) 7903 continue; 7904 7905 scsi_u64to8b(key, res_desc->res_key.key); 7906 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7907 (lun->pr_res_idx == i || 7908 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7909 res_desc->flags = SPRI_FULL_R_HOLDER; 7910 res_desc->scopetype = lun->pr_res_type; 7911 } 7912 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7913 res_desc->rel_trgt_port_id); 7914 len = 0; 7915 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT]; 7916 if (port != NULL) 7917 len = ctl_create_iid(port, 7918 i % CTL_MAX_INIT_PER_PORT, 7919 res_desc->transport_id); 7920 scsi_ulto4b(len, res_desc->additional_length); 7921 res_desc = (struct scsi_per_res_in_full_desc *) 7922 &res_desc->transport_id[len]; 7923 } 7924 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7925 res_status->header.length); 7926 break; 7927 } 7928 default: 7929 panic("%s: Invalid PR type %#x", __func__, cdb->action); 7930 } 7931 mtx_unlock(&lun->lun_lock); 7932 7933 ctl_set_success(ctsio); 7934 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7935 ctsio->be_move_done = ctl_config_move_done; 7936 ctl_datamove((union ctl_io *)ctsio); 7937 return (CTL_RETVAL_COMPLETE); 7938 } 7939 7940 /* 7941 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7942 * it should return. 7943 */ 7944 static int 7945 ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7946 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7947 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7948 struct scsi_per_res_out_parms* param) 7949 { 7950 union ctl_ha_msg persis_io; 7951 int i; 7952 7953 mtx_lock(&lun->lun_lock); 7954 if (sa_res_key == 0) { 7955 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7956 /* validate scope and type */ 7957 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7958 SPR_LU_SCOPE) { 7959 mtx_unlock(&lun->lun_lock); 7960 ctl_set_invalid_field(/*ctsio*/ ctsio, 7961 /*sks_valid*/ 1, 7962 /*command*/ 1, 7963 /*field*/ 2, 7964 /*bit_valid*/ 1, 7965 /*bit*/ 4); 7966 ctl_done((union ctl_io *)ctsio); 7967 return (1); 7968 } 7969 7970 if (type>8 || type==2 || type==4 || type==0) { 7971 mtx_unlock(&lun->lun_lock); 7972 ctl_set_invalid_field(/*ctsio*/ ctsio, 7973 /*sks_valid*/ 1, 7974 /*command*/ 1, 7975 /*field*/ 2, 7976 /*bit_valid*/ 1, 7977 /*bit*/ 0); 7978 ctl_done((union ctl_io *)ctsio); 7979 return (1); 7980 } 7981 7982 /* 7983 * Unregister everybody else and build UA for 7984 * them 7985 */ 7986 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7987 if (i == residx || ctl_get_prkey(lun, i) == 0) 7988 continue; 7989 7990 ctl_clr_prkey(lun, i); 7991 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7992 } 7993 lun->pr_key_count = 1; 7994 lun->pr_res_type = type; 7995 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 7996 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 7997 lun->pr_res_idx = residx; 7998 lun->pr_generation++; 7999 mtx_unlock(&lun->lun_lock); 8000 8001 /* send msg to other side */ 8002 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8003 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8004 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8005 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8006 persis_io.pr.pr_info.res_type = type; 8007 memcpy(persis_io.pr.pr_info.sa_res_key, 8008 param->serv_act_res_key, 8009 sizeof(param->serv_act_res_key)); 8010 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8011 sizeof(persis_io.pr), M_WAITOK); 8012 } else { 8013 /* not all registrants */ 8014 mtx_unlock(&lun->lun_lock); 8015 free(ctsio->kern_data_ptr, M_CTL); 8016 ctl_set_invalid_field(ctsio, 8017 /*sks_valid*/ 1, 8018 /*command*/ 0, 8019 /*field*/ 8, 8020 /*bit_valid*/ 0, 8021 /*bit*/ 0); 8022 ctl_done((union ctl_io *)ctsio); 8023 return (1); 8024 } 8025 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8026 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 8027 int found = 0; 8028 8029 if (res_key == sa_res_key) { 8030 /* special case */ 8031 /* 8032 * The spec implies this is not good but doesn't 8033 * say what to do. There are two choices either 8034 * generate a res conflict or check condition 8035 * with illegal field in parameter data. Since 8036 * that is what is done when the sa_res_key is 8037 * zero I'll take that approach since this has 8038 * to do with the sa_res_key. 8039 */ 8040 mtx_unlock(&lun->lun_lock); 8041 free(ctsio->kern_data_ptr, M_CTL); 8042 ctl_set_invalid_field(ctsio, 8043 /*sks_valid*/ 1, 8044 /*command*/ 0, 8045 /*field*/ 8, 8046 /*bit_valid*/ 0, 8047 /*bit*/ 0); 8048 ctl_done((union ctl_io *)ctsio); 8049 return (1); 8050 } 8051 8052 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8053 if (ctl_get_prkey(lun, i) != sa_res_key) 8054 continue; 8055 8056 found = 1; 8057 ctl_clr_prkey(lun, i); 8058 lun->pr_key_count--; 8059 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8060 } 8061 if (!found) { 8062 mtx_unlock(&lun->lun_lock); 8063 free(ctsio->kern_data_ptr, M_CTL); 8064 ctl_set_reservation_conflict(ctsio); 8065 ctl_done((union ctl_io *)ctsio); 8066 return (CTL_RETVAL_COMPLETE); 8067 } 8068 lun->pr_generation++; 8069 mtx_unlock(&lun->lun_lock); 8070 8071 /* send msg to other side */ 8072 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8073 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8074 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8075 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8076 persis_io.pr.pr_info.res_type = type; 8077 memcpy(persis_io.pr.pr_info.sa_res_key, 8078 param->serv_act_res_key, 8079 sizeof(param->serv_act_res_key)); 8080 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8081 sizeof(persis_io.pr), M_WAITOK); 8082 } else { 8083 /* Reserved but not all registrants */ 8084 /* sa_res_key is res holder */ 8085 if (sa_res_key == ctl_get_prkey(lun, lun->pr_res_idx)) { 8086 /* validate scope and type */ 8087 if ((cdb->scope_type & SPR_SCOPE_MASK) != 8088 SPR_LU_SCOPE) { 8089 mtx_unlock(&lun->lun_lock); 8090 ctl_set_invalid_field(/*ctsio*/ ctsio, 8091 /*sks_valid*/ 1, 8092 /*command*/ 1, 8093 /*field*/ 2, 8094 /*bit_valid*/ 1, 8095 /*bit*/ 4); 8096 ctl_done((union ctl_io *)ctsio); 8097 return (1); 8098 } 8099 8100 if (type>8 || type==2 || type==4 || type==0) { 8101 mtx_unlock(&lun->lun_lock); 8102 ctl_set_invalid_field(/*ctsio*/ ctsio, 8103 /*sks_valid*/ 1, 8104 /*command*/ 1, 8105 /*field*/ 2, 8106 /*bit_valid*/ 1, 8107 /*bit*/ 0); 8108 ctl_done((union ctl_io *)ctsio); 8109 return (1); 8110 } 8111 8112 /* 8113 * Do the following: 8114 * if sa_res_key != res_key remove all 8115 * registrants w/sa_res_key and generate UA 8116 * for these registrants(Registrations 8117 * Preempted) if it wasn't an exclusive 8118 * reservation generate UA(Reservations 8119 * Preempted) for all other registered nexuses 8120 * if the type has changed. Establish the new 8121 * reservation and holder. If res_key and 8122 * sa_res_key are the same do the above 8123 * except don't unregister the res holder. 8124 */ 8125 8126 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 8127 if (i == residx || ctl_get_prkey(lun, i) == 0) 8128 continue; 8129 8130 if (sa_res_key == ctl_get_prkey(lun, i)) { 8131 ctl_clr_prkey(lun, i); 8132 lun->pr_key_count--; 8133 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8134 } else if (type != lun->pr_res_type && 8135 (lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8136 lun->pr_res_type == SPR_TYPE_EX_AC_RO)) { 8137 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8138 } 8139 } 8140 lun->pr_res_type = type; 8141 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8142 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8143 lun->pr_res_idx = residx; 8144 else 8145 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8146 lun->pr_generation++; 8147 mtx_unlock(&lun->lun_lock); 8148 8149 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8150 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8151 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8152 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8153 persis_io.pr.pr_info.res_type = type; 8154 memcpy(persis_io.pr.pr_info.sa_res_key, 8155 param->serv_act_res_key, 8156 sizeof(param->serv_act_res_key)); 8157 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8158 sizeof(persis_io.pr), M_WAITOK); 8159 } else { 8160 /* 8161 * sa_res_key is not the res holder just 8162 * remove registrants 8163 */ 8164 int found=0; 8165 8166 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8167 if (sa_res_key != ctl_get_prkey(lun, i)) 8168 continue; 8169 8170 found = 1; 8171 ctl_clr_prkey(lun, i); 8172 lun->pr_key_count--; 8173 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8174 } 8175 8176 if (!found) { 8177 mtx_unlock(&lun->lun_lock); 8178 free(ctsio->kern_data_ptr, M_CTL); 8179 ctl_set_reservation_conflict(ctsio); 8180 ctl_done((union ctl_io *)ctsio); 8181 return (1); 8182 } 8183 lun->pr_generation++; 8184 mtx_unlock(&lun->lun_lock); 8185 8186 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8187 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8188 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8189 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8190 persis_io.pr.pr_info.res_type = type; 8191 memcpy(persis_io.pr.pr_info.sa_res_key, 8192 param->serv_act_res_key, 8193 sizeof(param->serv_act_res_key)); 8194 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8195 sizeof(persis_io.pr), M_WAITOK); 8196 } 8197 } 8198 return (0); 8199 } 8200 8201 static void 8202 ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8203 { 8204 uint64_t sa_res_key; 8205 int i; 8206 8207 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8208 8209 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8210 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8211 || sa_res_key != ctl_get_prkey(lun, lun->pr_res_idx)) { 8212 if (sa_res_key == 0) { 8213 /* 8214 * Unregister everybody else and build UA for 8215 * them 8216 */ 8217 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 8218 if (i == msg->pr.pr_info.residx || 8219 ctl_get_prkey(lun, i) == 0) 8220 continue; 8221 8222 ctl_clr_prkey(lun, i); 8223 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8224 } 8225 8226 lun->pr_key_count = 1; 8227 lun->pr_res_type = msg->pr.pr_info.res_type; 8228 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8229 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8230 lun->pr_res_idx = msg->pr.pr_info.residx; 8231 } else { 8232 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8233 if (sa_res_key == ctl_get_prkey(lun, i)) 8234 continue; 8235 8236 ctl_clr_prkey(lun, i); 8237 lun->pr_key_count--; 8238 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8239 } 8240 } 8241 } else { 8242 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8243 if (i == msg->pr.pr_info.residx || 8244 ctl_get_prkey(lun, i) == 0) 8245 continue; 8246 8247 if (sa_res_key == ctl_get_prkey(lun, i)) { 8248 ctl_clr_prkey(lun, i); 8249 lun->pr_key_count--; 8250 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8251 } else if (msg->pr.pr_info.res_type != lun->pr_res_type 8252 && (lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8253 lun->pr_res_type == SPR_TYPE_EX_AC_RO)) { 8254 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8255 } 8256 } 8257 lun->pr_res_type = msg->pr.pr_info.res_type; 8258 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8259 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8260 lun->pr_res_idx = msg->pr.pr_info.residx; 8261 else 8262 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8263 } 8264 lun->pr_generation++; 8265 8266 } 8267 8268 int 8269 ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8270 { 8271 struct ctl_softc *softc = CTL_SOFTC(ctsio); 8272 struct ctl_lun *lun = CTL_LUN(ctsio); 8273 int retval; 8274 u_int32_t param_len; 8275 struct scsi_per_res_out *cdb; 8276 struct scsi_per_res_out_parms* param; 8277 uint32_t residx; 8278 uint64_t res_key, sa_res_key, key; 8279 uint8_t type; 8280 union ctl_ha_msg persis_io; 8281 int i; 8282 8283 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8284 8285 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8286 retval = CTL_RETVAL_COMPLETE; 8287 8288 /* 8289 * We only support whole-LUN scope. The scope & type are ignored for 8290 * register, register and ignore existing key and clear. 8291 * We sometimes ignore scope and type on preempts too!! 8292 * Verify reservation type here as well. 8293 */ 8294 type = cdb->scope_type & SPR_TYPE_MASK; 8295 if ((cdb->action == SPRO_RESERVE) 8296 || (cdb->action == SPRO_RELEASE)) { 8297 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8298 ctl_set_invalid_field(/*ctsio*/ ctsio, 8299 /*sks_valid*/ 1, 8300 /*command*/ 1, 8301 /*field*/ 2, 8302 /*bit_valid*/ 1, 8303 /*bit*/ 4); 8304 ctl_done((union ctl_io *)ctsio); 8305 return (CTL_RETVAL_COMPLETE); 8306 } 8307 8308 if (type>8 || type==2 || type==4 || type==0) { 8309 ctl_set_invalid_field(/*ctsio*/ ctsio, 8310 /*sks_valid*/ 1, 8311 /*command*/ 1, 8312 /*field*/ 2, 8313 /*bit_valid*/ 1, 8314 /*bit*/ 0); 8315 ctl_done((union ctl_io *)ctsio); 8316 return (CTL_RETVAL_COMPLETE); 8317 } 8318 } 8319 8320 param_len = scsi_4btoul(cdb->length); 8321 8322 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8323 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8324 ctsio->kern_data_len = param_len; 8325 ctsio->kern_total_len = param_len; 8326 ctsio->kern_rel_offset = 0; 8327 ctsio->kern_sg_entries = 0; 8328 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8329 ctsio->be_move_done = ctl_config_move_done; 8330 ctl_datamove((union ctl_io *)ctsio); 8331 8332 return (CTL_RETVAL_COMPLETE); 8333 } 8334 8335 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8336 8337 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 8338 res_key = scsi_8btou64(param->res_key.key); 8339 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8340 8341 /* 8342 * Validate the reservation key here except for SPRO_REG_IGNO 8343 * This must be done for all other service actions 8344 */ 8345 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8346 mtx_lock(&lun->lun_lock); 8347 if ((key = ctl_get_prkey(lun, residx)) != 0) { 8348 if (res_key != key) { 8349 /* 8350 * The current key passed in doesn't match 8351 * the one the initiator previously 8352 * registered. 8353 */ 8354 mtx_unlock(&lun->lun_lock); 8355 free(ctsio->kern_data_ptr, M_CTL); 8356 ctl_set_reservation_conflict(ctsio); 8357 ctl_done((union ctl_io *)ctsio); 8358 return (CTL_RETVAL_COMPLETE); 8359 } 8360 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8361 /* 8362 * We are not registered 8363 */ 8364 mtx_unlock(&lun->lun_lock); 8365 free(ctsio->kern_data_ptr, M_CTL); 8366 ctl_set_reservation_conflict(ctsio); 8367 ctl_done((union ctl_io *)ctsio); 8368 return (CTL_RETVAL_COMPLETE); 8369 } else if (res_key != 0) { 8370 /* 8371 * We are not registered and trying to register but 8372 * the register key isn't zero. 8373 */ 8374 mtx_unlock(&lun->lun_lock); 8375 free(ctsio->kern_data_ptr, M_CTL); 8376 ctl_set_reservation_conflict(ctsio); 8377 ctl_done((union ctl_io *)ctsio); 8378 return (CTL_RETVAL_COMPLETE); 8379 } 8380 mtx_unlock(&lun->lun_lock); 8381 } 8382 8383 switch (cdb->action & SPRO_ACTION_MASK) { 8384 case SPRO_REGISTER: 8385 case SPRO_REG_IGNO: { 8386 /* 8387 * We don't support any of these options, as we report in 8388 * the read capabilities request (see 8389 * ctl_persistent_reserve_in(), above). 8390 */ 8391 if ((param->flags & SPR_SPEC_I_PT) 8392 || (param->flags & SPR_ALL_TG_PT) 8393 || (param->flags & SPR_APTPL)) { 8394 int bit_ptr; 8395 8396 if (param->flags & SPR_APTPL) 8397 bit_ptr = 0; 8398 else if (param->flags & SPR_ALL_TG_PT) 8399 bit_ptr = 2; 8400 else /* SPR_SPEC_I_PT */ 8401 bit_ptr = 3; 8402 8403 free(ctsio->kern_data_ptr, M_CTL); 8404 ctl_set_invalid_field(ctsio, 8405 /*sks_valid*/ 1, 8406 /*command*/ 0, 8407 /*field*/ 20, 8408 /*bit_valid*/ 1, 8409 /*bit*/ bit_ptr); 8410 ctl_done((union ctl_io *)ctsio); 8411 return (CTL_RETVAL_COMPLETE); 8412 } 8413 8414 mtx_lock(&lun->lun_lock); 8415 8416 /* 8417 * The initiator wants to clear the 8418 * key/unregister. 8419 */ 8420 if (sa_res_key == 0) { 8421 if ((res_key == 0 8422 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8423 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8424 && ctl_get_prkey(lun, residx) == 0)) { 8425 mtx_unlock(&lun->lun_lock); 8426 goto done; 8427 } 8428 8429 ctl_clr_prkey(lun, residx); 8430 lun->pr_key_count--; 8431 8432 if (residx == lun->pr_res_idx) { 8433 lun->flags &= ~CTL_LUN_PR_RESERVED; 8434 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8435 8436 if ((lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8437 lun->pr_res_type == SPR_TYPE_EX_AC_RO) && 8438 lun->pr_key_count) { 8439 /* 8440 * If the reservation is a registrants 8441 * only type we need to generate a UA 8442 * for other registered inits. The 8443 * sense code should be RESERVATIONS 8444 * RELEASED 8445 */ 8446 8447 for (i = softc->init_min; i < softc->init_max; i++){ 8448 if (ctl_get_prkey(lun, i) == 0) 8449 continue; 8450 ctl_est_ua(lun, i, 8451 CTL_UA_RES_RELEASE); 8452 } 8453 } 8454 lun->pr_res_type = 0; 8455 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8456 if (lun->pr_key_count==0) { 8457 lun->flags &= ~CTL_LUN_PR_RESERVED; 8458 lun->pr_res_type = 0; 8459 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8460 } 8461 } 8462 lun->pr_generation++; 8463 mtx_unlock(&lun->lun_lock); 8464 8465 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8466 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8467 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8468 persis_io.pr.pr_info.residx = residx; 8469 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8470 sizeof(persis_io.pr), M_WAITOK); 8471 } else /* sa_res_key != 0 */ { 8472 /* 8473 * If we aren't registered currently then increment 8474 * the key count and set the registered flag. 8475 */ 8476 ctl_alloc_prkey(lun, residx); 8477 if (ctl_get_prkey(lun, residx) == 0) 8478 lun->pr_key_count++; 8479 ctl_set_prkey(lun, residx, sa_res_key); 8480 lun->pr_generation++; 8481 mtx_unlock(&lun->lun_lock); 8482 8483 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8484 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8485 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8486 persis_io.pr.pr_info.residx = residx; 8487 memcpy(persis_io.pr.pr_info.sa_res_key, 8488 param->serv_act_res_key, 8489 sizeof(param->serv_act_res_key)); 8490 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8491 sizeof(persis_io.pr), M_WAITOK); 8492 } 8493 8494 break; 8495 } 8496 case SPRO_RESERVE: 8497 mtx_lock(&lun->lun_lock); 8498 if (lun->flags & CTL_LUN_PR_RESERVED) { 8499 /* 8500 * if this isn't the reservation holder and it's 8501 * not a "all registrants" type or if the type is 8502 * different then we have a conflict 8503 */ 8504 if ((lun->pr_res_idx != residx 8505 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8506 || lun->pr_res_type != type) { 8507 mtx_unlock(&lun->lun_lock); 8508 free(ctsio->kern_data_ptr, M_CTL); 8509 ctl_set_reservation_conflict(ctsio); 8510 ctl_done((union ctl_io *)ctsio); 8511 return (CTL_RETVAL_COMPLETE); 8512 } 8513 mtx_unlock(&lun->lun_lock); 8514 } else /* create a reservation */ { 8515 /* 8516 * If it's not an "all registrants" type record 8517 * reservation holder 8518 */ 8519 if (type != SPR_TYPE_WR_EX_AR 8520 && type != SPR_TYPE_EX_AC_AR) 8521 lun->pr_res_idx = residx; /* Res holder */ 8522 else 8523 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8524 8525 lun->flags |= CTL_LUN_PR_RESERVED; 8526 lun->pr_res_type = type; 8527 8528 mtx_unlock(&lun->lun_lock); 8529 8530 /* send msg to other side */ 8531 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8532 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8533 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8534 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8535 persis_io.pr.pr_info.res_type = type; 8536 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8537 sizeof(persis_io.pr), M_WAITOK); 8538 } 8539 break; 8540 8541 case SPRO_RELEASE: 8542 mtx_lock(&lun->lun_lock); 8543 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8544 /* No reservation exists return good status */ 8545 mtx_unlock(&lun->lun_lock); 8546 goto done; 8547 } 8548 /* 8549 * Is this nexus a reservation holder? 8550 */ 8551 if (lun->pr_res_idx != residx 8552 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8553 /* 8554 * not a res holder return good status but 8555 * do nothing 8556 */ 8557 mtx_unlock(&lun->lun_lock); 8558 goto done; 8559 } 8560 8561 if (lun->pr_res_type != type) { 8562 mtx_unlock(&lun->lun_lock); 8563 free(ctsio->kern_data_ptr, M_CTL); 8564 ctl_set_illegal_pr_release(ctsio); 8565 ctl_done((union ctl_io *)ctsio); 8566 return (CTL_RETVAL_COMPLETE); 8567 } 8568 8569 /* okay to release */ 8570 lun->flags &= ~CTL_LUN_PR_RESERVED; 8571 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8572 lun->pr_res_type = 0; 8573 8574 /* 8575 * If this isn't an exclusive access reservation and NUAR 8576 * is not set, generate UA for all other registrants. 8577 */ 8578 if (type != SPR_TYPE_EX_AC && type != SPR_TYPE_WR_EX && 8579 (lun->MODE_CTRL.queue_flags & SCP_NUAR) == 0) { 8580 for (i = softc->init_min; i < softc->init_max; i++) { 8581 if (i == residx || ctl_get_prkey(lun, i) == 0) 8582 continue; 8583 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8584 } 8585 } 8586 mtx_unlock(&lun->lun_lock); 8587 8588 /* Send msg to other side */ 8589 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8590 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8591 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8592 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8593 sizeof(persis_io.pr), M_WAITOK); 8594 break; 8595 8596 case SPRO_CLEAR: 8597 /* send msg to other side */ 8598 8599 mtx_lock(&lun->lun_lock); 8600 lun->flags &= ~CTL_LUN_PR_RESERVED; 8601 lun->pr_res_type = 0; 8602 lun->pr_key_count = 0; 8603 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8604 8605 ctl_clr_prkey(lun, residx); 8606 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8607 if (ctl_get_prkey(lun, i) != 0) { 8608 ctl_clr_prkey(lun, i); 8609 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8610 } 8611 lun->pr_generation++; 8612 mtx_unlock(&lun->lun_lock); 8613 8614 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8615 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8616 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8617 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8618 sizeof(persis_io.pr), M_WAITOK); 8619 break; 8620 8621 case SPRO_PREEMPT: 8622 case SPRO_PRE_ABO: { 8623 int nretval; 8624 8625 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8626 residx, ctsio, cdb, param); 8627 if (nretval != 0) 8628 return (CTL_RETVAL_COMPLETE); 8629 break; 8630 } 8631 default: 8632 panic("%s: Invalid PR type %#x", __func__, cdb->action); 8633 } 8634 8635 done: 8636 free(ctsio->kern_data_ptr, M_CTL); 8637 ctl_set_success(ctsio); 8638 ctl_done((union ctl_io *)ctsio); 8639 8640 return (retval); 8641 } 8642 8643 /* 8644 * This routine is for handling a message from the other SC pertaining to 8645 * persistent reserve out. All the error checking will have been done 8646 * so only performing the action need be done here to keep the two 8647 * in sync. 8648 */ 8649 static void 8650 ctl_hndl_per_res_out_on_other_sc(union ctl_io *io) 8651 { 8652 struct ctl_softc *softc = CTL_SOFTC(io); 8653 union ctl_ha_msg *msg = (union ctl_ha_msg *)&io->presio.pr_msg; 8654 struct ctl_lun *lun; 8655 int i; 8656 uint32_t residx, targ_lun; 8657 8658 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8659 mtx_lock(&softc->ctl_lock); 8660 if (targ_lun >= ctl_max_luns || 8661 (lun = softc->ctl_luns[targ_lun]) == NULL) { 8662 mtx_unlock(&softc->ctl_lock); 8663 return; 8664 } 8665 mtx_lock(&lun->lun_lock); 8666 mtx_unlock(&softc->ctl_lock); 8667 if (lun->flags & CTL_LUN_DISABLED) { 8668 mtx_unlock(&lun->lun_lock); 8669 return; 8670 } 8671 residx = ctl_get_initindex(&msg->hdr.nexus); 8672 switch(msg->pr.pr_info.action) { 8673 case CTL_PR_REG_KEY: 8674 ctl_alloc_prkey(lun, msg->pr.pr_info.residx); 8675 if (ctl_get_prkey(lun, msg->pr.pr_info.residx) == 0) 8676 lun->pr_key_count++; 8677 ctl_set_prkey(lun, msg->pr.pr_info.residx, 8678 scsi_8btou64(msg->pr.pr_info.sa_res_key)); 8679 lun->pr_generation++; 8680 break; 8681 8682 case CTL_PR_UNREG_KEY: 8683 ctl_clr_prkey(lun, msg->pr.pr_info.residx); 8684 lun->pr_key_count--; 8685 8686 /* XXX Need to see if the reservation has been released */ 8687 /* if so do we need to generate UA? */ 8688 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8689 lun->flags &= ~CTL_LUN_PR_RESERVED; 8690 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8691 8692 if ((lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8693 lun->pr_res_type == SPR_TYPE_EX_AC_RO) && 8694 lun->pr_key_count) { 8695 /* 8696 * If the reservation is a registrants 8697 * only type we need to generate a UA 8698 * for other registered inits. The 8699 * sense code should be RESERVATIONS 8700 * RELEASED 8701 */ 8702 8703 for (i = softc->init_min; i < softc->init_max; i++) { 8704 if (ctl_get_prkey(lun, i) == 0) 8705 continue; 8706 8707 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8708 } 8709 } 8710 lun->pr_res_type = 0; 8711 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8712 if (lun->pr_key_count==0) { 8713 lun->flags &= ~CTL_LUN_PR_RESERVED; 8714 lun->pr_res_type = 0; 8715 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8716 } 8717 } 8718 lun->pr_generation++; 8719 break; 8720 8721 case CTL_PR_RESERVE: 8722 lun->flags |= CTL_LUN_PR_RESERVED; 8723 lun->pr_res_type = msg->pr.pr_info.res_type; 8724 lun->pr_res_idx = msg->pr.pr_info.residx; 8725 8726 break; 8727 8728 case CTL_PR_RELEASE: 8729 /* 8730 * If this isn't an exclusive access reservation and NUAR 8731 * is not set, generate UA for all other registrants. 8732 */ 8733 if (lun->pr_res_type != SPR_TYPE_EX_AC && 8734 lun->pr_res_type != SPR_TYPE_WR_EX && 8735 (lun->MODE_CTRL.queue_flags & SCP_NUAR) == 0) { 8736 for (i = softc->init_min; i < softc->init_max; i++) { 8737 if (i == residx || ctl_get_prkey(lun, i) == 0) 8738 continue; 8739 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8740 } 8741 } 8742 8743 lun->flags &= ~CTL_LUN_PR_RESERVED; 8744 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8745 lun->pr_res_type = 0; 8746 break; 8747 8748 case CTL_PR_PREEMPT: 8749 ctl_pro_preempt_other(lun, msg); 8750 break; 8751 case CTL_PR_CLEAR: 8752 lun->flags &= ~CTL_LUN_PR_RESERVED; 8753 lun->pr_res_type = 0; 8754 lun->pr_key_count = 0; 8755 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8756 8757 for (i=0; i < CTL_MAX_INITIATORS; i++) { 8758 if (ctl_get_prkey(lun, i) == 0) 8759 continue; 8760 ctl_clr_prkey(lun, i); 8761 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8762 } 8763 lun->pr_generation++; 8764 break; 8765 } 8766 8767 mtx_unlock(&lun->lun_lock); 8768 } 8769 8770 int 8771 ctl_read_write(struct ctl_scsiio *ctsio) 8772 { 8773 struct ctl_lun *lun = CTL_LUN(ctsio); 8774 struct ctl_lba_len_flags *lbalen; 8775 uint64_t lba; 8776 uint32_t num_blocks; 8777 int flags, retval; 8778 int isread; 8779 8780 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8781 8782 flags = 0; 8783 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8784 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8785 switch (ctsio->cdb[0]) { 8786 case READ_6: 8787 case WRITE_6: { 8788 struct scsi_rw_6 *cdb; 8789 8790 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8791 8792 lba = scsi_3btoul(cdb->addr); 8793 /* only 5 bits are valid in the most significant address byte */ 8794 lba &= 0x1fffff; 8795 num_blocks = cdb->length; 8796 /* 8797 * This is correct according to SBC-2. 8798 */ 8799 if (num_blocks == 0) 8800 num_blocks = 256; 8801 break; 8802 } 8803 case READ_10: 8804 case WRITE_10: { 8805 struct scsi_rw_10 *cdb; 8806 8807 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8808 if (cdb->byte2 & SRW10_FUA) 8809 flags |= CTL_LLF_FUA; 8810 if (cdb->byte2 & SRW10_DPO) 8811 flags |= CTL_LLF_DPO; 8812 lba = scsi_4btoul(cdb->addr); 8813 num_blocks = scsi_2btoul(cdb->length); 8814 break; 8815 } 8816 case WRITE_VERIFY_10: { 8817 struct scsi_write_verify_10 *cdb; 8818 8819 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8820 flags |= CTL_LLF_FUA; 8821 if (cdb->byte2 & SWV_DPO) 8822 flags |= CTL_LLF_DPO; 8823 lba = scsi_4btoul(cdb->addr); 8824 num_blocks = scsi_2btoul(cdb->length); 8825 break; 8826 } 8827 case READ_12: 8828 case WRITE_12: { 8829 struct scsi_rw_12 *cdb; 8830 8831 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8832 if (cdb->byte2 & SRW12_FUA) 8833 flags |= CTL_LLF_FUA; 8834 if (cdb->byte2 & SRW12_DPO) 8835 flags |= CTL_LLF_DPO; 8836 lba = scsi_4btoul(cdb->addr); 8837 num_blocks = scsi_4btoul(cdb->length); 8838 break; 8839 } 8840 case WRITE_VERIFY_12: { 8841 struct scsi_write_verify_12 *cdb; 8842 8843 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8844 flags |= CTL_LLF_FUA; 8845 if (cdb->byte2 & SWV_DPO) 8846 flags |= CTL_LLF_DPO; 8847 lba = scsi_4btoul(cdb->addr); 8848 num_blocks = scsi_4btoul(cdb->length); 8849 break; 8850 } 8851 case READ_16: 8852 case WRITE_16: { 8853 struct scsi_rw_16 *cdb; 8854 8855 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8856 if (cdb->byte2 & SRW12_FUA) 8857 flags |= CTL_LLF_FUA; 8858 if (cdb->byte2 & SRW12_DPO) 8859 flags |= CTL_LLF_DPO; 8860 lba = scsi_8btou64(cdb->addr); 8861 num_blocks = scsi_4btoul(cdb->length); 8862 break; 8863 } 8864 case WRITE_ATOMIC_16: { 8865 struct scsi_write_atomic_16 *cdb; 8866 8867 if (lun->be_lun->atomicblock == 0) { 8868 ctl_set_invalid_opcode(ctsio); 8869 ctl_done((union ctl_io *)ctsio); 8870 return (CTL_RETVAL_COMPLETE); 8871 } 8872 8873 cdb = (struct scsi_write_atomic_16 *)ctsio->cdb; 8874 if (cdb->byte2 & SRW12_FUA) 8875 flags |= CTL_LLF_FUA; 8876 if (cdb->byte2 & SRW12_DPO) 8877 flags |= CTL_LLF_DPO; 8878 lba = scsi_8btou64(cdb->addr); 8879 num_blocks = scsi_2btoul(cdb->length); 8880 if (num_blocks > lun->be_lun->atomicblock) { 8881 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8882 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8883 /*bit*/ 0); 8884 ctl_done((union ctl_io *)ctsio); 8885 return (CTL_RETVAL_COMPLETE); 8886 } 8887 break; 8888 } 8889 case WRITE_VERIFY_16: { 8890 struct scsi_write_verify_16 *cdb; 8891 8892 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8893 flags |= CTL_LLF_FUA; 8894 if (cdb->byte2 & SWV_DPO) 8895 flags |= CTL_LLF_DPO; 8896 lba = scsi_8btou64(cdb->addr); 8897 num_blocks = scsi_4btoul(cdb->length); 8898 break; 8899 } 8900 default: 8901 /* 8902 * We got a command we don't support. This shouldn't 8903 * happen, commands should be filtered out above us. 8904 */ 8905 ctl_set_invalid_opcode(ctsio); 8906 ctl_done((union ctl_io *)ctsio); 8907 8908 return (CTL_RETVAL_COMPLETE); 8909 break; /* NOTREACHED */ 8910 } 8911 8912 /* 8913 * The first check is to make sure we're in bounds, the second 8914 * check is to catch wrap-around problems. If the lba + num blocks 8915 * is less than the lba, then we've wrapped around and the block 8916 * range is invalid anyway. 8917 */ 8918 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8919 || ((lba + num_blocks) < lba)) { 8920 ctl_set_lba_out_of_range(ctsio, 8921 MAX(lba, lun->be_lun->maxlba + 1)); 8922 ctl_done((union ctl_io *)ctsio); 8923 return (CTL_RETVAL_COMPLETE); 8924 } 8925 8926 /* 8927 * According to SBC-3, a transfer length of 0 is not an error. 8928 * Note that this cannot happen with WRITE(6) or READ(6), since 0 8929 * translates to 256 blocks for those commands. 8930 */ 8931 if (num_blocks == 0) { 8932 ctl_set_success(ctsio); 8933 ctl_done((union ctl_io *)ctsio); 8934 return (CTL_RETVAL_COMPLETE); 8935 } 8936 8937 /* Set FUA and/or DPO if caches are disabled. */ 8938 if (isread) { 8939 if ((lun->MODE_CACHING.flags1 & SCP_RCD) != 0) 8940 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 8941 } else { 8942 if ((lun->MODE_CACHING.flags1 & SCP_WCE) == 0) 8943 flags |= CTL_LLF_FUA; 8944 } 8945 8946 lbalen = (struct ctl_lba_len_flags *) 8947 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8948 lbalen->lba = lba; 8949 lbalen->len = num_blocks; 8950 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 8951 8952 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8953 ctsio->kern_rel_offset = 0; 8954 8955 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 8956 8957 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8958 return (retval); 8959 } 8960 8961 static int 8962 ctl_cnw_cont(union ctl_io *io) 8963 { 8964 struct ctl_lun *lun = CTL_LUN(io); 8965 struct ctl_scsiio *ctsio; 8966 struct ctl_lba_len_flags *lbalen; 8967 int retval; 8968 8969 ctsio = &io->scsiio; 8970 ctsio->io_hdr.status = CTL_STATUS_NONE; 8971 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 8972 lbalen = (struct ctl_lba_len_flags *) 8973 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8974 lbalen->flags &= ~CTL_LLF_COMPARE; 8975 lbalen->flags |= CTL_LLF_WRITE; 8976 8977 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 8978 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8979 return (retval); 8980 } 8981 8982 int 8983 ctl_cnw(struct ctl_scsiio *ctsio) 8984 { 8985 struct ctl_lun *lun = CTL_LUN(ctsio); 8986 struct ctl_lba_len_flags *lbalen; 8987 uint64_t lba; 8988 uint32_t num_blocks; 8989 int flags, retval; 8990 8991 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 8992 8993 flags = 0; 8994 switch (ctsio->cdb[0]) { 8995 case COMPARE_AND_WRITE: { 8996 struct scsi_compare_and_write *cdb; 8997 8998 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 8999 if (cdb->byte2 & SRW10_FUA) 9000 flags |= CTL_LLF_FUA; 9001 if (cdb->byte2 & SRW10_DPO) 9002 flags |= CTL_LLF_DPO; 9003 lba = scsi_8btou64(cdb->addr); 9004 num_blocks = cdb->length; 9005 break; 9006 } 9007 default: 9008 /* 9009 * We got a command we don't support. This shouldn't 9010 * happen, commands should be filtered out above us. 9011 */ 9012 ctl_set_invalid_opcode(ctsio); 9013 ctl_done((union ctl_io *)ctsio); 9014 9015 return (CTL_RETVAL_COMPLETE); 9016 break; /* NOTREACHED */ 9017 } 9018 9019 /* 9020 * The first check is to make sure we're in bounds, the second 9021 * check is to catch wrap-around problems. If the lba + num blocks 9022 * is less than the lba, then we've wrapped around and the block 9023 * range is invalid anyway. 9024 */ 9025 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9026 || ((lba + num_blocks) < lba)) { 9027 ctl_set_lba_out_of_range(ctsio, 9028 MAX(lba, lun->be_lun->maxlba + 1)); 9029 ctl_done((union ctl_io *)ctsio); 9030 return (CTL_RETVAL_COMPLETE); 9031 } 9032 9033 /* 9034 * According to SBC-3, a transfer length of 0 is not an error. 9035 */ 9036 if (num_blocks == 0) { 9037 ctl_set_success(ctsio); 9038 ctl_done((union ctl_io *)ctsio); 9039 return (CTL_RETVAL_COMPLETE); 9040 } 9041 9042 /* Set FUA if write cache is disabled. */ 9043 if ((lun->MODE_CACHING.flags1 & SCP_WCE) == 0) 9044 flags |= CTL_LLF_FUA; 9045 9046 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 9047 ctsio->kern_rel_offset = 0; 9048 9049 /* 9050 * Set the IO_CONT flag, so that if this I/O gets passed to 9051 * ctl_data_submit_done(), it'll get passed back to 9052 * ctl_ctl_cnw_cont() for further processing. 9053 */ 9054 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 9055 ctsio->io_cont = ctl_cnw_cont; 9056 9057 lbalen = (struct ctl_lba_len_flags *) 9058 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9059 lbalen->lba = lba; 9060 lbalen->len = num_blocks; 9061 lbalen->flags = CTL_LLF_COMPARE | flags; 9062 9063 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 9064 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9065 return (retval); 9066 } 9067 9068 int 9069 ctl_verify(struct ctl_scsiio *ctsio) 9070 { 9071 struct ctl_lun *lun = CTL_LUN(ctsio); 9072 struct ctl_lba_len_flags *lbalen; 9073 uint64_t lba; 9074 uint32_t num_blocks; 9075 int bytchk, flags; 9076 int retval; 9077 9078 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 9079 9080 bytchk = 0; 9081 flags = CTL_LLF_FUA; 9082 switch (ctsio->cdb[0]) { 9083 case VERIFY_10: { 9084 struct scsi_verify_10 *cdb; 9085 9086 cdb = (struct scsi_verify_10 *)ctsio->cdb; 9087 if (cdb->byte2 & SVFY_BYTCHK) 9088 bytchk = 1; 9089 if (cdb->byte2 & SVFY_DPO) 9090 flags |= CTL_LLF_DPO; 9091 lba = scsi_4btoul(cdb->addr); 9092 num_blocks = scsi_2btoul(cdb->length); 9093 break; 9094 } 9095 case VERIFY_12: { 9096 struct scsi_verify_12 *cdb; 9097 9098 cdb = (struct scsi_verify_12 *)ctsio->cdb; 9099 if (cdb->byte2 & SVFY_BYTCHK) 9100 bytchk = 1; 9101 if (cdb->byte2 & SVFY_DPO) 9102 flags |= CTL_LLF_DPO; 9103 lba = scsi_4btoul(cdb->addr); 9104 num_blocks = scsi_4btoul(cdb->length); 9105 break; 9106 } 9107 case VERIFY_16: { 9108 struct scsi_rw_16 *cdb; 9109 9110 cdb = (struct scsi_rw_16 *)ctsio->cdb; 9111 if (cdb->byte2 & SVFY_BYTCHK) 9112 bytchk = 1; 9113 if (cdb->byte2 & SVFY_DPO) 9114 flags |= CTL_LLF_DPO; 9115 lba = scsi_8btou64(cdb->addr); 9116 num_blocks = scsi_4btoul(cdb->length); 9117 break; 9118 } 9119 default: 9120 /* 9121 * We got a command we don't support. This shouldn't 9122 * happen, commands should be filtered out above us. 9123 */ 9124 ctl_set_invalid_opcode(ctsio); 9125 ctl_done((union ctl_io *)ctsio); 9126 return (CTL_RETVAL_COMPLETE); 9127 } 9128 9129 /* 9130 * The first check is to make sure we're in bounds, the second 9131 * check is to catch wrap-around problems. If the lba + num blocks 9132 * is less than the lba, then we've wrapped around and the block 9133 * range is invalid anyway. 9134 */ 9135 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9136 || ((lba + num_blocks) < lba)) { 9137 ctl_set_lba_out_of_range(ctsio, 9138 MAX(lba, lun->be_lun->maxlba + 1)); 9139 ctl_done((union ctl_io *)ctsio); 9140 return (CTL_RETVAL_COMPLETE); 9141 } 9142 9143 /* 9144 * According to SBC-3, a transfer length of 0 is not an error. 9145 */ 9146 if (num_blocks == 0) { 9147 ctl_set_success(ctsio); 9148 ctl_done((union ctl_io *)ctsio); 9149 return (CTL_RETVAL_COMPLETE); 9150 } 9151 9152 lbalen = (struct ctl_lba_len_flags *) 9153 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9154 lbalen->lba = lba; 9155 lbalen->len = num_blocks; 9156 if (bytchk) { 9157 lbalen->flags = CTL_LLF_COMPARE | flags; 9158 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9159 } else { 9160 lbalen->flags = CTL_LLF_VERIFY | flags; 9161 ctsio->kern_total_len = 0; 9162 } 9163 ctsio->kern_rel_offset = 0; 9164 9165 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9166 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9167 return (retval); 9168 } 9169 9170 int 9171 ctl_report_luns(struct ctl_scsiio *ctsio) 9172 { 9173 struct ctl_softc *softc = CTL_SOFTC(ctsio); 9174 struct ctl_port *port = CTL_PORT(ctsio); 9175 struct ctl_lun *lun, *request_lun = CTL_LUN(ctsio); 9176 struct scsi_report_luns *cdb; 9177 struct scsi_report_luns_data *lun_data; 9178 int num_filled, num_luns, num_port_luns, retval; 9179 uint32_t alloc_len, lun_datalen; 9180 uint32_t initidx, targ_lun_id, lun_id; 9181 9182 retval = CTL_RETVAL_COMPLETE; 9183 cdb = (struct scsi_report_luns *)ctsio->cdb; 9184 9185 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9186 9187 num_luns = 0; 9188 num_port_luns = port->lun_map ? port->lun_map_size : ctl_max_luns; 9189 mtx_lock(&softc->ctl_lock); 9190 for (targ_lun_id = 0; targ_lun_id < num_port_luns; targ_lun_id++) { 9191 if (ctl_lun_map_from_port(port, targ_lun_id) != UINT32_MAX) 9192 num_luns++; 9193 } 9194 mtx_unlock(&softc->ctl_lock); 9195 9196 switch (cdb->select_report) { 9197 case RPL_REPORT_DEFAULT: 9198 case RPL_REPORT_ALL: 9199 case RPL_REPORT_NONSUBSID: 9200 break; 9201 case RPL_REPORT_WELLKNOWN: 9202 case RPL_REPORT_ADMIN: 9203 case RPL_REPORT_CONGLOM: 9204 num_luns = 0; 9205 break; 9206 default: 9207 ctl_set_invalid_field(ctsio, 9208 /*sks_valid*/ 1, 9209 /*command*/ 1, 9210 /*field*/ 2, 9211 /*bit_valid*/ 0, 9212 /*bit*/ 0); 9213 ctl_done((union ctl_io *)ctsio); 9214 return (retval); 9215 break; /* NOTREACHED */ 9216 } 9217 9218 alloc_len = scsi_4btoul(cdb->length); 9219 /* 9220 * The initiator has to allocate at least 16 bytes for this request, 9221 * so he can at least get the header and the first LUN. Otherwise 9222 * we reject the request (per SPC-3 rev 14, section 6.21). 9223 */ 9224 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9225 sizeof(struct scsi_report_luns_lundata))) { 9226 ctl_set_invalid_field(ctsio, 9227 /*sks_valid*/ 1, 9228 /*command*/ 1, 9229 /*field*/ 6, 9230 /*bit_valid*/ 0, 9231 /*bit*/ 0); 9232 ctl_done((union ctl_io *)ctsio); 9233 return (retval); 9234 } 9235 9236 lun_datalen = sizeof(*lun_data) + 9237 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9238 9239 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9240 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9241 ctsio->kern_sg_entries = 0; 9242 9243 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9244 9245 mtx_lock(&softc->ctl_lock); 9246 for (targ_lun_id = 0, num_filled = 0; 9247 targ_lun_id < num_port_luns && num_filled < num_luns; 9248 targ_lun_id++) { 9249 lun_id = ctl_lun_map_from_port(port, targ_lun_id); 9250 if (lun_id == UINT32_MAX) 9251 continue; 9252 lun = softc->ctl_luns[lun_id]; 9253 if (lun == NULL) 9254 continue; 9255 9256 be64enc(lun_data->luns[num_filled++].lundata, 9257 ctl_encode_lun(targ_lun_id)); 9258 9259 /* 9260 * According to SPC-3, rev 14 section 6.21: 9261 * 9262 * "The execution of a REPORT LUNS command to any valid and 9263 * installed logical unit shall clear the REPORTED LUNS DATA 9264 * HAS CHANGED unit attention condition for all logical 9265 * units of that target with respect to the requesting 9266 * initiator. A valid and installed logical unit is one 9267 * having a PERIPHERAL QUALIFIER of 000b in the standard 9268 * INQUIRY data (see 6.4.2)." 9269 * 9270 * If request_lun is NULL, the LUN this report luns command 9271 * was issued to is either disabled or doesn't exist. In that 9272 * case, we shouldn't clear any pending lun change unit 9273 * attention. 9274 */ 9275 if (request_lun != NULL) { 9276 mtx_lock(&lun->lun_lock); 9277 ctl_clr_ua(lun, initidx, CTL_UA_LUN_CHANGE); 9278 mtx_unlock(&lun->lun_lock); 9279 } 9280 } 9281 mtx_unlock(&softc->ctl_lock); 9282 9283 /* 9284 * It's quite possible that we've returned fewer LUNs than we allocated 9285 * space for. Trim it. 9286 */ 9287 lun_datalen = sizeof(*lun_data) + 9288 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9289 ctsio->kern_rel_offset = 0; 9290 ctsio->kern_sg_entries = 0; 9291 ctsio->kern_data_len = min(lun_datalen, alloc_len); 9292 ctsio->kern_total_len = ctsio->kern_data_len; 9293 9294 /* 9295 * We set this to the actual data length, regardless of how much 9296 * space we actually have to return results. If the user looks at 9297 * this value, he'll know whether or not he allocated enough space 9298 * and reissue the command if necessary. We don't support well 9299 * known logical units, so if the user asks for that, return none. 9300 */ 9301 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9302 9303 /* 9304 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9305 * this request. 9306 */ 9307 ctl_set_success(ctsio); 9308 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9309 ctsio->be_move_done = ctl_config_move_done; 9310 ctl_datamove((union ctl_io *)ctsio); 9311 return (retval); 9312 } 9313 9314 int 9315 ctl_request_sense(struct ctl_scsiio *ctsio) 9316 { 9317 struct ctl_softc *softc = CTL_SOFTC(ctsio); 9318 struct ctl_lun *lun = CTL_LUN(ctsio); 9319 struct scsi_request_sense *cdb; 9320 struct scsi_sense_data *sense_ptr, *ps; 9321 uint32_t initidx; 9322 int have_error; 9323 u_int sense_len = SSD_FULL_SIZE; 9324 scsi_sense_data_type sense_format; 9325 ctl_ua_type ua_type; 9326 uint8_t asc = 0, ascq = 0; 9327 9328 cdb = (struct scsi_request_sense *)ctsio->cdb; 9329 9330 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9331 9332 /* 9333 * Determine which sense format the user wants. 9334 */ 9335 if (cdb->byte2 & SRS_DESC) 9336 sense_format = SSD_TYPE_DESC; 9337 else 9338 sense_format = SSD_TYPE_FIXED; 9339 9340 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9341 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9342 ctsio->kern_sg_entries = 0; 9343 ctsio->kern_rel_offset = 0; 9344 9345 /* 9346 * struct scsi_sense_data, which is currently set to 256 bytes, is 9347 * larger than the largest allowed value for the length field in the 9348 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9349 */ 9350 ctsio->kern_data_len = cdb->length; 9351 ctsio->kern_total_len = cdb->length; 9352 9353 /* 9354 * If we don't have a LUN, we don't have any pending sense. 9355 */ 9356 if (lun == NULL || 9357 ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 9358 softc->ha_link < CTL_HA_LINK_UNKNOWN)) { 9359 /* "Logical unit not supported" */ 9360 ctl_set_sense_data(sense_ptr, &sense_len, NULL, sense_format, 9361 /*current_error*/ 1, 9362 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 9363 /*asc*/ 0x25, 9364 /*ascq*/ 0x00, 9365 SSD_ELEM_NONE); 9366 goto send; 9367 } 9368 9369 have_error = 0; 9370 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9371 /* 9372 * Check for pending sense, and then for pending unit attentions. 9373 * Pending sense gets returned first, then pending unit attentions. 9374 */ 9375 mtx_lock(&lun->lun_lock); 9376 ps = lun->pending_sense[initidx / CTL_MAX_INIT_PER_PORT]; 9377 if (ps != NULL) 9378 ps += initidx % CTL_MAX_INIT_PER_PORT; 9379 if (ps != NULL && ps->error_code != 0) { 9380 scsi_sense_data_type stored_format; 9381 9382 /* 9383 * Check to see which sense format was used for the stored 9384 * sense data. 9385 */ 9386 stored_format = scsi_sense_type(ps); 9387 9388 /* 9389 * If the user requested a different sense format than the 9390 * one we stored, then we need to convert it to the other 9391 * format. If we're going from descriptor to fixed format 9392 * sense data, we may lose things in translation, depending 9393 * on what options were used. 9394 * 9395 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9396 * for some reason we'll just copy it out as-is. 9397 */ 9398 if ((stored_format == SSD_TYPE_FIXED) 9399 && (sense_format == SSD_TYPE_DESC)) 9400 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9401 ps, (struct scsi_sense_data_desc *)sense_ptr); 9402 else if ((stored_format == SSD_TYPE_DESC) 9403 && (sense_format == SSD_TYPE_FIXED)) 9404 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9405 ps, (struct scsi_sense_data_fixed *)sense_ptr); 9406 else 9407 memcpy(sense_ptr, ps, sizeof(*sense_ptr)); 9408 9409 ps->error_code = 0; 9410 have_error = 1; 9411 } else { 9412 ua_type = ctl_build_ua(lun, initidx, sense_ptr, &sense_len, 9413 sense_format); 9414 if (ua_type != CTL_UA_NONE) 9415 have_error = 1; 9416 } 9417 if (have_error == 0) { 9418 /* 9419 * Report informational exception if have one and allowed. 9420 */ 9421 if (lun->MODE_IE.mrie != SIEP_MRIE_NO) { 9422 asc = lun->ie_asc; 9423 ascq = lun->ie_ascq; 9424 } 9425 ctl_set_sense_data(sense_ptr, &sense_len, lun, sense_format, 9426 /*current_error*/ 1, 9427 /*sense_key*/ SSD_KEY_NO_SENSE, 9428 /*asc*/ asc, 9429 /*ascq*/ ascq, 9430 SSD_ELEM_NONE); 9431 } 9432 mtx_unlock(&lun->lun_lock); 9433 9434 send: 9435 /* 9436 * We report the SCSI status as OK, since the status of the command 9437 * itself is OK. We're reporting sense as parameter data. 9438 */ 9439 ctl_set_success(ctsio); 9440 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9441 ctsio->be_move_done = ctl_config_move_done; 9442 ctl_datamove((union ctl_io *)ctsio); 9443 return (CTL_RETVAL_COMPLETE); 9444 } 9445 9446 int 9447 ctl_tur(struct ctl_scsiio *ctsio) 9448 { 9449 9450 CTL_DEBUG_PRINT(("ctl_tur\n")); 9451 9452 ctl_set_success(ctsio); 9453 ctl_done((union ctl_io *)ctsio); 9454 9455 return (CTL_RETVAL_COMPLETE); 9456 } 9457 9458 /* 9459 * SCSI VPD page 0x00, the Supported VPD Pages page. 9460 */ 9461 static int 9462 ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9463 { 9464 struct ctl_lun *lun = CTL_LUN(ctsio); 9465 struct scsi_vpd_supported_pages *pages; 9466 int sup_page_size; 9467 int p; 9468 9469 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9470 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9471 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9472 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9473 ctsio->kern_rel_offset = 0; 9474 ctsio->kern_sg_entries = 0; 9475 ctsio->kern_data_len = min(sup_page_size, alloc_len); 9476 ctsio->kern_total_len = ctsio->kern_data_len; 9477 9478 /* 9479 * The control device is always connected. The disk device, on the 9480 * other hand, may not be online all the time. Need to change this 9481 * to figure out whether the disk device is actually online or not. 9482 */ 9483 if (lun != NULL) 9484 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9485 lun->be_lun->lun_type; 9486 else 9487 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9488 9489 p = 0; 9490 /* Supported VPD pages */ 9491 pages->page_list[p++] = SVPD_SUPPORTED_PAGES; 9492 /* Serial Number */ 9493 pages->page_list[p++] = SVPD_UNIT_SERIAL_NUMBER; 9494 /* Device Identification */ 9495 pages->page_list[p++] = SVPD_DEVICE_ID; 9496 /* Extended INQUIRY Data */ 9497 pages->page_list[p++] = SVPD_EXTENDED_INQUIRY_DATA; 9498 /* Mode Page Policy */ 9499 pages->page_list[p++] = SVPD_MODE_PAGE_POLICY; 9500 /* SCSI Ports */ 9501 pages->page_list[p++] = SVPD_SCSI_PORTS; 9502 /* Third-party Copy */ 9503 pages->page_list[p++] = SVPD_SCSI_TPC; 9504 /* SCSI Feature Sets */ 9505 pages->page_list[p++] = SVPD_SCSI_SFS; 9506 if (lun != NULL && lun->be_lun->lun_type == T_DIRECT) { 9507 /* Block limits */ 9508 pages->page_list[p++] = SVPD_BLOCK_LIMITS; 9509 /* Block Device Characteristics */ 9510 pages->page_list[p++] = SVPD_BDC; 9511 /* Logical Block Provisioning */ 9512 pages->page_list[p++] = SVPD_LBP; 9513 } 9514 pages->length = p; 9515 9516 ctl_set_success(ctsio); 9517 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9518 ctsio->be_move_done = ctl_config_move_done; 9519 ctl_datamove((union ctl_io *)ctsio); 9520 return (CTL_RETVAL_COMPLETE); 9521 } 9522 9523 /* 9524 * SCSI VPD page 0x80, the Unit Serial Number page. 9525 */ 9526 static int 9527 ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9528 { 9529 struct ctl_lun *lun = CTL_LUN(ctsio); 9530 struct scsi_vpd_unit_serial_number *sn_ptr; 9531 int data_len; 9532 9533 data_len = 4 + CTL_SN_LEN; 9534 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9535 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9536 ctsio->kern_rel_offset = 0; 9537 ctsio->kern_sg_entries = 0; 9538 ctsio->kern_data_len = min(data_len, alloc_len); 9539 ctsio->kern_total_len = ctsio->kern_data_len; 9540 9541 /* 9542 * The control device is always connected. The disk device, on the 9543 * other hand, may not be online all the time. Need to change this 9544 * to figure out whether the disk device is actually online or not. 9545 */ 9546 if (lun != NULL) 9547 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9548 lun->be_lun->lun_type; 9549 else 9550 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9551 9552 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9553 sn_ptr->length = CTL_SN_LEN; 9554 /* 9555 * If we don't have a LUN, we just leave the serial number as 9556 * all spaces. 9557 */ 9558 if (lun != NULL) { 9559 strncpy((char *)sn_ptr->serial_num, 9560 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9561 } else 9562 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9563 9564 ctl_set_success(ctsio); 9565 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9566 ctsio->be_move_done = ctl_config_move_done; 9567 ctl_datamove((union ctl_io *)ctsio); 9568 return (CTL_RETVAL_COMPLETE); 9569 } 9570 9571 /* 9572 * SCSI VPD page 0x86, the Extended INQUIRY Data page. 9573 */ 9574 static int 9575 ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9576 { 9577 struct ctl_lun *lun = CTL_LUN(ctsio); 9578 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9579 int data_len; 9580 9581 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9582 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9583 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9584 ctsio->kern_sg_entries = 0; 9585 ctsio->kern_rel_offset = 0; 9586 ctsio->kern_data_len = min(data_len, alloc_len); 9587 ctsio->kern_total_len = ctsio->kern_data_len; 9588 9589 /* 9590 * The control device is always connected. The disk device, on the 9591 * other hand, may not be online all the time. 9592 */ 9593 if (lun != NULL) 9594 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9595 lun->be_lun->lun_type; 9596 else 9597 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9598 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9599 scsi_ulto2b(data_len - 4, eid_ptr->page_length); 9600 /* 9601 * We support head of queue, ordered and simple tags. 9602 */ 9603 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9604 /* 9605 * Volatile cache supported. 9606 */ 9607 eid_ptr->flags3 = SVPD_EID_V_SUP; 9608 9609 /* 9610 * This means that we clear the REPORTED LUNS DATA HAS CHANGED unit 9611 * attention for a particular IT nexus on all LUNs once we report 9612 * it to that nexus once. This bit is required as of SPC-4. 9613 */ 9614 eid_ptr->flags4 = SVPD_EID_LUICLR; 9615 9616 /* 9617 * We support revert to defaults (RTD) bit in MODE SELECT. 9618 */ 9619 eid_ptr->flags5 = SVPD_EID_RTD_SUP; 9620 9621 /* 9622 * XXX KDM in order to correctly answer this, we would need 9623 * information from the SIM to determine how much sense data it 9624 * can send. So this would really be a path inquiry field, most 9625 * likely. This can be set to a maximum of 252 according to SPC-4, 9626 * but the hardware may or may not be able to support that much. 9627 * 0 just means that the maximum sense data length is not reported. 9628 */ 9629 eid_ptr->max_sense_length = 0; 9630 9631 ctl_set_success(ctsio); 9632 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9633 ctsio->be_move_done = ctl_config_move_done; 9634 ctl_datamove((union ctl_io *)ctsio); 9635 return (CTL_RETVAL_COMPLETE); 9636 } 9637 9638 static int 9639 ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9640 { 9641 struct ctl_lun *lun = CTL_LUN(ctsio); 9642 struct scsi_vpd_mode_page_policy *mpp_ptr; 9643 int data_len; 9644 9645 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9646 sizeof(struct scsi_vpd_mode_page_policy_descr); 9647 9648 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9649 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9650 ctsio->kern_rel_offset = 0; 9651 ctsio->kern_sg_entries = 0; 9652 ctsio->kern_data_len = min(data_len, alloc_len); 9653 ctsio->kern_total_len = ctsio->kern_data_len; 9654 9655 /* 9656 * The control device is always connected. The disk device, on the 9657 * other hand, may not be online all the time. 9658 */ 9659 if (lun != NULL) 9660 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9661 lun->be_lun->lun_type; 9662 else 9663 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9664 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9665 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9666 mpp_ptr->descr[0].page_code = 0x3f; 9667 mpp_ptr->descr[0].subpage_code = 0xff; 9668 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9669 9670 ctl_set_success(ctsio); 9671 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9672 ctsio->be_move_done = ctl_config_move_done; 9673 ctl_datamove((union ctl_io *)ctsio); 9674 return (CTL_RETVAL_COMPLETE); 9675 } 9676 9677 /* 9678 * SCSI VPD page 0x83, the Device Identification page. 9679 */ 9680 static int 9681 ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9682 { 9683 struct ctl_softc *softc = CTL_SOFTC(ctsio); 9684 struct ctl_port *port = CTL_PORT(ctsio); 9685 struct ctl_lun *lun = CTL_LUN(ctsio); 9686 struct scsi_vpd_device_id *devid_ptr; 9687 struct scsi_vpd_id_descriptor *desc; 9688 int data_len, g; 9689 uint8_t proto; 9690 9691 data_len = sizeof(struct scsi_vpd_device_id) + 9692 sizeof(struct scsi_vpd_id_descriptor) + 9693 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9694 sizeof(struct scsi_vpd_id_descriptor) + 9695 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9696 if (lun && lun->lun_devid) 9697 data_len += lun->lun_devid->len; 9698 if (port && port->port_devid) 9699 data_len += port->port_devid->len; 9700 if (port && port->target_devid) 9701 data_len += port->target_devid->len; 9702 9703 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9704 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9705 ctsio->kern_sg_entries = 0; 9706 ctsio->kern_rel_offset = 0; 9707 ctsio->kern_sg_entries = 0; 9708 ctsio->kern_data_len = min(data_len, alloc_len); 9709 ctsio->kern_total_len = ctsio->kern_data_len; 9710 9711 /* 9712 * The control device is always connected. The disk device, on the 9713 * other hand, may not be online all the time. 9714 */ 9715 if (lun != NULL) 9716 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9717 lun->be_lun->lun_type; 9718 else 9719 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9720 devid_ptr->page_code = SVPD_DEVICE_ID; 9721 scsi_ulto2b(data_len - 4, devid_ptr->length); 9722 9723 if (port && port->port_type == CTL_PORT_FC) 9724 proto = SCSI_PROTO_FC << 4; 9725 else if (port && port->port_type == CTL_PORT_SAS) 9726 proto = SCSI_PROTO_SAS << 4; 9727 else if (port && port->port_type == CTL_PORT_ISCSI) 9728 proto = SCSI_PROTO_ISCSI << 4; 9729 else 9730 proto = SCSI_PROTO_SPI << 4; 9731 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9732 9733 /* 9734 * We're using a LUN association here. i.e., this device ID is a 9735 * per-LUN identifier. 9736 */ 9737 if (lun && lun->lun_devid) { 9738 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9739 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9740 lun->lun_devid->len); 9741 } 9742 9743 /* 9744 * This is for the WWPN which is a port association. 9745 */ 9746 if (port && port->port_devid) { 9747 memcpy(desc, port->port_devid->data, port->port_devid->len); 9748 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9749 port->port_devid->len); 9750 } 9751 9752 /* 9753 * This is for the Relative Target Port(type 4h) identifier 9754 */ 9755 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9756 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9757 SVPD_ID_TYPE_RELTARG; 9758 desc->length = 4; 9759 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9760 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9761 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9762 9763 /* 9764 * This is for the Target Port Group(type 5h) identifier 9765 */ 9766 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9767 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9768 SVPD_ID_TYPE_TPORTGRP; 9769 desc->length = 4; 9770 if (softc->is_single || 9771 (port && port->status & CTL_PORT_STATUS_HA_SHARED)) 9772 g = 1; 9773 else 9774 g = 2 + ctsio->io_hdr.nexus.targ_port / softc->port_cnt; 9775 scsi_ulto2b(g, &desc->identifier[2]); 9776 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9777 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9778 9779 /* 9780 * This is for the Target identifier 9781 */ 9782 if (port && port->target_devid) { 9783 memcpy(desc, port->target_devid->data, port->target_devid->len); 9784 } 9785 9786 ctl_set_success(ctsio); 9787 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9788 ctsio->be_move_done = ctl_config_move_done; 9789 ctl_datamove((union ctl_io *)ctsio); 9790 return (CTL_RETVAL_COMPLETE); 9791 } 9792 9793 static int 9794 ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9795 { 9796 struct ctl_softc *softc = CTL_SOFTC(ctsio); 9797 struct ctl_lun *lun = CTL_LUN(ctsio); 9798 struct scsi_vpd_scsi_ports *sp; 9799 struct scsi_vpd_port_designation *pd; 9800 struct scsi_vpd_port_designation_cont *pdc; 9801 struct ctl_port *port; 9802 int data_len, num_target_ports, iid_len, id_len; 9803 9804 num_target_ports = 0; 9805 iid_len = 0; 9806 id_len = 0; 9807 mtx_lock(&softc->ctl_lock); 9808 STAILQ_FOREACH(port, &softc->port_list, links) { 9809 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9810 continue; 9811 if (lun != NULL && 9812 ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 9813 continue; 9814 num_target_ports++; 9815 if (port->init_devid) 9816 iid_len += port->init_devid->len; 9817 if (port->port_devid) 9818 id_len += port->port_devid->len; 9819 } 9820 mtx_unlock(&softc->ctl_lock); 9821 9822 data_len = sizeof(struct scsi_vpd_scsi_ports) + 9823 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 9824 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 9825 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9826 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 9827 ctsio->kern_sg_entries = 0; 9828 ctsio->kern_rel_offset = 0; 9829 ctsio->kern_sg_entries = 0; 9830 ctsio->kern_data_len = min(data_len, alloc_len); 9831 ctsio->kern_total_len = ctsio->kern_data_len; 9832 9833 /* 9834 * The control device is always connected. The disk device, on the 9835 * other hand, may not be online all the time. Need to change this 9836 * to figure out whether the disk device is actually online or not. 9837 */ 9838 if (lun != NULL) 9839 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 9840 lun->be_lun->lun_type; 9841 else 9842 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9843 9844 sp->page_code = SVPD_SCSI_PORTS; 9845 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 9846 sp->page_length); 9847 pd = &sp->design[0]; 9848 9849 mtx_lock(&softc->ctl_lock); 9850 STAILQ_FOREACH(port, &softc->port_list, links) { 9851 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9852 continue; 9853 if (lun != NULL && 9854 ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 9855 continue; 9856 scsi_ulto2b(port->targ_port, pd->relative_port_id); 9857 if (port->init_devid) { 9858 iid_len = port->init_devid->len; 9859 memcpy(pd->initiator_transportid, 9860 port->init_devid->data, port->init_devid->len); 9861 } else 9862 iid_len = 0; 9863 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 9864 pdc = (struct scsi_vpd_port_designation_cont *) 9865 (&pd->initiator_transportid[iid_len]); 9866 if (port->port_devid) { 9867 id_len = port->port_devid->len; 9868 memcpy(pdc->target_port_descriptors, 9869 port->port_devid->data, port->port_devid->len); 9870 } else 9871 id_len = 0; 9872 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 9873 pd = (struct scsi_vpd_port_designation *) 9874 ((uint8_t *)pdc->target_port_descriptors + id_len); 9875 } 9876 mtx_unlock(&softc->ctl_lock); 9877 9878 ctl_set_success(ctsio); 9879 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9880 ctsio->be_move_done = ctl_config_move_done; 9881 ctl_datamove((union ctl_io *)ctsio); 9882 return (CTL_RETVAL_COMPLETE); 9883 } 9884 9885 static int 9886 ctl_inquiry_evpd_sfs(struct ctl_scsiio *ctsio, int alloc_len) 9887 { 9888 struct ctl_lun *lun = CTL_LUN(ctsio); 9889 struct scsi_vpd_sfs *sfs_ptr; 9890 int sfs_page_size, n; 9891 9892 sfs_page_size = sizeof(*sfs_ptr) + 5 * 2; 9893 ctsio->kern_data_ptr = malloc(sfs_page_size, M_CTL, M_WAITOK | M_ZERO); 9894 sfs_ptr = (struct scsi_vpd_sfs *)ctsio->kern_data_ptr; 9895 ctsio->kern_sg_entries = 0; 9896 ctsio->kern_rel_offset = 0; 9897 ctsio->kern_sg_entries = 0; 9898 ctsio->kern_data_len = min(sfs_page_size, alloc_len); 9899 ctsio->kern_total_len = ctsio->kern_data_len; 9900 9901 /* 9902 * The control device is always connected. The disk device, on the 9903 * other hand, may not be online all the time. Need to change this 9904 * to figure out whether the disk device is actually online or not. 9905 */ 9906 if (lun != NULL) 9907 sfs_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9908 lun->be_lun->lun_type; 9909 else 9910 sfs_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9911 9912 sfs_ptr->page_code = SVPD_SCSI_SFS; 9913 n = 0; 9914 /* Discovery 2016 */ 9915 scsi_ulto2b(0x0001, &sfs_ptr->codes[2 * n++]); 9916 if (lun != NULL && lun->be_lun->lun_type == T_DIRECT) { 9917 /* SBC Base 2016 */ 9918 scsi_ulto2b(0x0101, &sfs_ptr->codes[2 * n++]); 9919 /* SBC Base 2010 */ 9920 scsi_ulto2b(0x0102, &sfs_ptr->codes[2 * n++]); 9921 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9922 /* Basic Provisioning 2016 */ 9923 scsi_ulto2b(0x0103, &sfs_ptr->codes[2 * n++]); 9924 } 9925 /* Drive Maintenance 2016 */ 9926 //scsi_ulto2b(0x0104, &sfs_ptr->codes[2 * n++]); 9927 } 9928 scsi_ulto2b(4 + 2 * n, sfs_ptr->page_length); 9929 9930 ctl_set_success(ctsio); 9931 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9932 ctsio->be_move_done = ctl_config_move_done; 9933 ctl_datamove((union ctl_io *)ctsio); 9934 return (CTL_RETVAL_COMPLETE); 9935 } 9936 9937 static int 9938 ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 9939 { 9940 struct ctl_lun *lun = CTL_LUN(ctsio); 9941 struct scsi_vpd_block_limits *bl_ptr; 9942 const char *val; 9943 uint64_t ival; 9944 9945 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 9946 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 9947 ctsio->kern_sg_entries = 0; 9948 ctsio->kern_rel_offset = 0; 9949 ctsio->kern_sg_entries = 0; 9950 ctsio->kern_data_len = min(sizeof(*bl_ptr), alloc_len); 9951 ctsio->kern_total_len = ctsio->kern_data_len; 9952 9953 /* 9954 * The control device is always connected. The disk device, on the 9955 * other hand, may not be online all the time. Need to change this 9956 * to figure out whether the disk device is actually online or not. 9957 */ 9958 if (lun != NULL) 9959 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9960 lun->be_lun->lun_type; 9961 else 9962 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9963 9964 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 9965 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 9966 bl_ptr->max_cmp_write_len = 0xff; 9967 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 9968 if (lun != NULL) { 9969 scsi_ulto4b(lun->be_lun->opttxferlen, bl_ptr->opt_txfer_len); 9970 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9971 ival = 0xffffffff; 9972 val = dnvlist_get_string(lun->be_lun->options, 9973 "unmap_max_lba", NULL); 9974 if (val != NULL) 9975 ctl_expand_number(val, &ival); 9976 scsi_ulto4b(ival, bl_ptr->max_unmap_lba_cnt); 9977 ival = 0xffffffff; 9978 val = dnvlist_get_string(lun->be_lun->options, 9979 "unmap_max_descr", NULL); 9980 if (val != NULL) 9981 ctl_expand_number(val, &ival); 9982 scsi_ulto4b(ival, bl_ptr->max_unmap_blk_cnt); 9983 if (lun->be_lun->ublockexp != 0) { 9984 scsi_ulto4b((1 << lun->be_lun->ublockexp), 9985 bl_ptr->opt_unmap_grain); 9986 scsi_ulto4b(0x80000000 | lun->be_lun->ublockoff, 9987 bl_ptr->unmap_grain_align); 9988 } 9989 } 9990 scsi_ulto4b(lun->be_lun->atomicblock, 9991 bl_ptr->max_atomic_transfer_length); 9992 scsi_ulto4b(0, bl_ptr->atomic_alignment); 9993 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 9994 scsi_ulto4b(0, bl_ptr->max_atomic_transfer_length_with_atomic_boundary); 9995 scsi_ulto4b(0, bl_ptr->max_atomic_boundary_size); 9996 ival = UINT64_MAX; 9997 val = dnvlist_get_string(lun->be_lun->options, 9998 "write_same_max_lba", NULL); 9999 if (val != NULL) 10000 ctl_expand_number(val, &ival); 10001 scsi_u64to8b(ival, bl_ptr->max_write_same_length); 10002 if (lun->be_lun->maxlba + 1 > ival) 10003 bl_ptr->flags |= SVPD_BL_WSNZ; 10004 } 10005 10006 ctl_set_success(ctsio); 10007 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10008 ctsio->be_move_done = ctl_config_move_done; 10009 ctl_datamove((union ctl_io *)ctsio); 10010 return (CTL_RETVAL_COMPLETE); 10011 } 10012 10013 static int 10014 ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 10015 { 10016 struct ctl_lun *lun = CTL_LUN(ctsio); 10017 struct scsi_vpd_block_device_characteristics *bdc_ptr; 10018 const char *value; 10019 u_int i; 10020 10021 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 10022 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 10023 ctsio->kern_sg_entries = 0; 10024 ctsio->kern_rel_offset = 0; 10025 ctsio->kern_data_len = min(sizeof(*bdc_ptr), alloc_len); 10026 ctsio->kern_total_len = ctsio->kern_data_len; 10027 10028 /* 10029 * The control device is always connected. The disk device, on the 10030 * other hand, may not be online all the time. Need to change this 10031 * to figure out whether the disk device is actually online or not. 10032 */ 10033 if (lun != NULL) 10034 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10035 lun->be_lun->lun_type; 10036 else 10037 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10038 bdc_ptr->page_code = SVPD_BDC; 10039 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 10040 if (lun != NULL && 10041 (value = dnvlist_get_string(lun->be_lun->options, "rpm", NULL)) != NULL) 10042 i = strtol(value, NULL, 0); 10043 else 10044 i = CTL_DEFAULT_ROTATION_RATE; 10045 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 10046 if (lun != NULL && 10047 (value = dnvlist_get_string(lun->be_lun->options, "formfactor", NULL)) != NULL) 10048 i = strtol(value, NULL, 0); 10049 else 10050 i = 0; 10051 bdc_ptr->wab_wac_ff = (i & 0x0f); 10052 bdc_ptr->flags = SVPD_RBWZ | SVPD_FUAB | SVPD_VBULS; 10053 10054 ctl_set_success(ctsio); 10055 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10056 ctsio->be_move_done = ctl_config_move_done; 10057 ctl_datamove((union ctl_io *)ctsio); 10058 return (CTL_RETVAL_COMPLETE); 10059 } 10060 10061 static int 10062 ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 10063 { 10064 struct ctl_lun *lun = CTL_LUN(ctsio); 10065 struct scsi_vpd_logical_block_prov *lbp_ptr; 10066 const char *value; 10067 10068 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 10069 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 10070 ctsio->kern_sg_entries = 0; 10071 ctsio->kern_rel_offset = 0; 10072 ctsio->kern_data_len = min(sizeof(*lbp_ptr), alloc_len); 10073 ctsio->kern_total_len = ctsio->kern_data_len; 10074 10075 /* 10076 * The control device is always connected. The disk device, on the 10077 * other hand, may not be online all the time. Need to change this 10078 * to figure out whether the disk device is actually online or not. 10079 */ 10080 if (lun != NULL) 10081 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10082 lun->be_lun->lun_type; 10083 else 10084 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 10085 10086 lbp_ptr->page_code = SVPD_LBP; 10087 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 10088 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 10089 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 10090 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 10091 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 10092 value = dnvlist_get_string(lun->be_lun->options, 10093 "provisioning_type", NULL); 10094 if (value != NULL) { 10095 if (strcmp(value, "resource") == 0) 10096 lbp_ptr->prov_type = SVPD_LBP_RESOURCE; 10097 else if (strcmp(value, "thin") == 0) 10098 lbp_ptr->prov_type = SVPD_LBP_THIN; 10099 } else 10100 lbp_ptr->prov_type = SVPD_LBP_THIN; 10101 } 10102 10103 ctl_set_success(ctsio); 10104 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10105 ctsio->be_move_done = ctl_config_move_done; 10106 ctl_datamove((union ctl_io *)ctsio); 10107 return (CTL_RETVAL_COMPLETE); 10108 } 10109 10110 /* 10111 * INQUIRY with the EVPD bit set. 10112 */ 10113 static int 10114 ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 10115 { 10116 struct ctl_lun *lun = CTL_LUN(ctsio); 10117 struct scsi_inquiry *cdb; 10118 int alloc_len, retval; 10119 10120 cdb = (struct scsi_inquiry *)ctsio->cdb; 10121 alloc_len = scsi_2btoul(cdb->length); 10122 10123 switch (cdb->page_code) { 10124 case SVPD_SUPPORTED_PAGES: 10125 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 10126 break; 10127 case SVPD_UNIT_SERIAL_NUMBER: 10128 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 10129 break; 10130 case SVPD_DEVICE_ID: 10131 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 10132 break; 10133 case SVPD_EXTENDED_INQUIRY_DATA: 10134 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 10135 break; 10136 case SVPD_MODE_PAGE_POLICY: 10137 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 10138 break; 10139 case SVPD_SCSI_PORTS: 10140 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 10141 break; 10142 case SVPD_SCSI_TPC: 10143 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 10144 break; 10145 case SVPD_SCSI_SFS: 10146 retval = ctl_inquiry_evpd_sfs(ctsio, alloc_len); 10147 break; 10148 case SVPD_BLOCK_LIMITS: 10149 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10150 goto err; 10151 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 10152 break; 10153 case SVPD_BDC: 10154 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10155 goto err; 10156 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 10157 break; 10158 case SVPD_LBP: 10159 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 10160 goto err; 10161 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 10162 break; 10163 default: 10164 err: 10165 ctl_set_invalid_field(ctsio, 10166 /*sks_valid*/ 1, 10167 /*command*/ 1, 10168 /*field*/ 2, 10169 /*bit_valid*/ 0, 10170 /*bit*/ 0); 10171 ctl_done((union ctl_io *)ctsio); 10172 retval = CTL_RETVAL_COMPLETE; 10173 break; 10174 } 10175 10176 return (retval); 10177 } 10178 10179 /* 10180 * Standard INQUIRY data. 10181 */ 10182 static int 10183 ctl_inquiry_std(struct ctl_scsiio *ctsio) 10184 { 10185 struct ctl_softc *softc = CTL_SOFTC(ctsio); 10186 struct ctl_port *port = CTL_PORT(ctsio); 10187 struct ctl_lun *lun = CTL_LUN(ctsio); 10188 struct scsi_inquiry_data *inq_ptr; 10189 struct scsi_inquiry *cdb; 10190 const char *val; 10191 uint32_t alloc_len, data_len; 10192 ctl_port_type port_type; 10193 10194 port_type = port->port_type; 10195 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10196 port_type = CTL_PORT_SCSI; 10197 10198 cdb = (struct scsi_inquiry *)ctsio->cdb; 10199 alloc_len = scsi_2btoul(cdb->length); 10200 10201 /* 10202 * We malloc the full inquiry data size here and fill it 10203 * in. If the user only asks for less, we'll give him 10204 * that much. 10205 */ 10206 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10207 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10208 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10209 ctsio->kern_sg_entries = 0; 10210 ctsio->kern_rel_offset = 0; 10211 ctsio->kern_data_len = min(data_len, alloc_len); 10212 ctsio->kern_total_len = ctsio->kern_data_len; 10213 10214 if (lun != NULL) { 10215 if ((lun->flags & CTL_LUN_PRIMARY_SC) || 10216 softc->ha_link >= CTL_HA_LINK_UNKNOWN) { 10217 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10218 lun->be_lun->lun_type; 10219 } else { 10220 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | 10221 lun->be_lun->lun_type; 10222 } 10223 if (lun->flags & CTL_LUN_REMOVABLE) 10224 inq_ptr->dev_qual2 |= SID_RMB; 10225 } else 10226 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10227 10228 /* RMB in byte 2 is 0 */ 10229 inq_ptr->version = SCSI_REV_SPC5; 10230 10231 /* 10232 * According to SAM-3, even if a device only supports a single 10233 * level of LUN addressing, it should still set the HISUP bit: 10234 * 10235 * 4.9.1 Logical unit numbers overview 10236 * 10237 * All logical unit number formats described in this standard are 10238 * hierarchical in structure even when only a single level in that 10239 * hierarchy is used. The HISUP bit shall be set to one in the 10240 * standard INQUIRY data (see SPC-2) when any logical unit number 10241 * format described in this standard is used. Non-hierarchical 10242 * formats are outside the scope of this standard. 10243 * 10244 * Therefore we set the HiSup bit here. 10245 * 10246 * The response format is 2, per SPC-3. 10247 */ 10248 inq_ptr->response_format = SID_HiSup | 2; 10249 10250 inq_ptr->additional_length = data_len - 10251 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10252 CTL_DEBUG_PRINT(("additional_length = %d\n", 10253 inq_ptr->additional_length)); 10254 10255 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10256 if (port_type == CTL_PORT_SCSI) 10257 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10258 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10259 inq_ptr->flags = SID_CmdQue; 10260 if (port_type == CTL_PORT_SCSI) 10261 inq_ptr->flags |= SID_WBus16 | SID_Sync; 10262 10263 /* 10264 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10265 * We have 8 bytes for the vendor name, and 16 bytes for the device 10266 * name and 4 bytes for the revision. 10267 */ 10268 if (lun == NULL || (val = dnvlist_get_string(lun->be_lun->options, 10269 "vendor", NULL)) == NULL) { 10270 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10271 } else { 10272 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10273 strncpy(inq_ptr->vendor, val, 10274 min(sizeof(inq_ptr->vendor), strlen(val))); 10275 } 10276 if (lun == NULL) { 10277 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10278 sizeof(inq_ptr->product)); 10279 } else if ((val = dnvlist_get_string(lun->be_lun->options, "product", 10280 NULL)) == NULL) { 10281 switch (lun->be_lun->lun_type) { 10282 case T_DIRECT: 10283 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10284 sizeof(inq_ptr->product)); 10285 break; 10286 case T_PROCESSOR: 10287 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10288 sizeof(inq_ptr->product)); 10289 break; 10290 case T_CDROM: 10291 strncpy(inq_ptr->product, CTL_CDROM_PRODUCT, 10292 sizeof(inq_ptr->product)); 10293 break; 10294 default: 10295 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10296 sizeof(inq_ptr->product)); 10297 break; 10298 } 10299 } else { 10300 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10301 strncpy(inq_ptr->product, val, 10302 min(sizeof(inq_ptr->product), strlen(val))); 10303 } 10304 10305 /* 10306 * XXX make this a macro somewhere so it automatically gets 10307 * incremented when we make changes. 10308 */ 10309 if (lun == NULL || (val = dnvlist_get_string(lun->be_lun->options, 10310 "revision", NULL)) == NULL) { 10311 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10312 } else { 10313 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10314 strncpy(inq_ptr->revision, val, 10315 min(sizeof(inq_ptr->revision), strlen(val))); 10316 } 10317 10318 /* 10319 * For parallel SCSI, we support double transition and single 10320 * transition clocking. We also support QAS (Quick Arbitration 10321 * and Selection) and Information Unit transfers on both the 10322 * control and array devices. 10323 */ 10324 if (port_type == CTL_PORT_SCSI) 10325 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10326 SID_SPI_IUS; 10327 10328 /* SAM-6 (no version claimed) */ 10329 scsi_ulto2b(0x00C0, inq_ptr->version1); 10330 /* SPC-5 (no version claimed) */ 10331 scsi_ulto2b(0x05C0, inq_ptr->version2); 10332 if (port_type == CTL_PORT_FC) { 10333 /* FCP-2 ANSI INCITS.350:2003 */ 10334 scsi_ulto2b(0x0917, inq_ptr->version3); 10335 } else if (port_type == CTL_PORT_SCSI) { 10336 /* SPI-4 ANSI INCITS.362:200x */ 10337 scsi_ulto2b(0x0B56, inq_ptr->version3); 10338 } else if (port_type == CTL_PORT_ISCSI) { 10339 /* iSCSI (no version claimed) */ 10340 scsi_ulto2b(0x0960, inq_ptr->version3); 10341 } else if (port_type == CTL_PORT_SAS) { 10342 /* SAS (no version claimed) */ 10343 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10344 } else if (port_type == CTL_PORT_UMASS) { 10345 /* USB Mass Storage Class Bulk-Only Transport, Revision 1.0 */ 10346 scsi_ulto2b(0x1730, inq_ptr->version3); 10347 } 10348 10349 if (lun == NULL) { 10350 /* SBC-4 (no version claimed) */ 10351 scsi_ulto2b(0x0600, inq_ptr->version4); 10352 } else { 10353 switch (lun->be_lun->lun_type) { 10354 case T_DIRECT: 10355 /* SBC-4 (no version claimed) */ 10356 scsi_ulto2b(0x0600, inq_ptr->version4); 10357 break; 10358 case T_PROCESSOR: 10359 break; 10360 case T_CDROM: 10361 /* MMC-6 (no version claimed) */ 10362 scsi_ulto2b(0x04E0, inq_ptr->version4); 10363 break; 10364 default: 10365 break; 10366 } 10367 } 10368 10369 ctl_set_success(ctsio); 10370 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10371 ctsio->be_move_done = ctl_config_move_done; 10372 ctl_datamove((union ctl_io *)ctsio); 10373 return (CTL_RETVAL_COMPLETE); 10374 } 10375 10376 int 10377 ctl_inquiry(struct ctl_scsiio *ctsio) 10378 { 10379 struct scsi_inquiry *cdb; 10380 int retval; 10381 10382 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10383 10384 cdb = (struct scsi_inquiry *)ctsio->cdb; 10385 if (cdb->byte2 & SI_EVPD) 10386 retval = ctl_inquiry_evpd(ctsio); 10387 else if (cdb->page_code == 0) 10388 retval = ctl_inquiry_std(ctsio); 10389 else { 10390 ctl_set_invalid_field(ctsio, 10391 /*sks_valid*/ 1, 10392 /*command*/ 1, 10393 /*field*/ 2, 10394 /*bit_valid*/ 0, 10395 /*bit*/ 0); 10396 ctl_done((union ctl_io *)ctsio); 10397 return (CTL_RETVAL_COMPLETE); 10398 } 10399 10400 return (retval); 10401 } 10402 10403 int 10404 ctl_get_config(struct ctl_scsiio *ctsio) 10405 { 10406 struct ctl_lun *lun = CTL_LUN(ctsio); 10407 struct scsi_get_config_header *hdr; 10408 struct scsi_get_config_feature *feature; 10409 struct scsi_get_config *cdb; 10410 uint32_t alloc_len, data_len; 10411 int rt, starting; 10412 10413 cdb = (struct scsi_get_config *)ctsio->cdb; 10414 rt = (cdb->rt & SGC_RT_MASK); 10415 starting = scsi_2btoul(cdb->starting_feature); 10416 alloc_len = scsi_2btoul(cdb->length); 10417 10418 data_len = sizeof(struct scsi_get_config_header) + 10419 sizeof(struct scsi_get_config_feature) + 8 + 10420 sizeof(struct scsi_get_config_feature) + 8 + 10421 sizeof(struct scsi_get_config_feature) + 4 + 10422 sizeof(struct scsi_get_config_feature) + 4 + 10423 sizeof(struct scsi_get_config_feature) + 8 + 10424 sizeof(struct scsi_get_config_feature) + 10425 sizeof(struct scsi_get_config_feature) + 4 + 10426 sizeof(struct scsi_get_config_feature) + 4 + 10427 sizeof(struct scsi_get_config_feature) + 4 + 10428 sizeof(struct scsi_get_config_feature) + 4 + 10429 sizeof(struct scsi_get_config_feature) + 4 + 10430 sizeof(struct scsi_get_config_feature) + 4; 10431 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10432 ctsio->kern_sg_entries = 0; 10433 ctsio->kern_rel_offset = 0; 10434 10435 hdr = (struct scsi_get_config_header *)ctsio->kern_data_ptr; 10436 if (lun->flags & CTL_LUN_NO_MEDIA) 10437 scsi_ulto2b(0x0000, hdr->current_profile); 10438 else 10439 scsi_ulto2b(0x0010, hdr->current_profile); 10440 feature = (struct scsi_get_config_feature *)(hdr + 1); 10441 10442 if (starting > 0x003b) 10443 goto done; 10444 if (starting > 0x003a) 10445 goto f3b; 10446 if (starting > 0x002b) 10447 goto f3a; 10448 if (starting > 0x002a) 10449 goto f2b; 10450 if (starting > 0x001f) 10451 goto f2a; 10452 if (starting > 0x001e) 10453 goto f1f; 10454 if (starting > 0x001d) 10455 goto f1e; 10456 if (starting > 0x0010) 10457 goto f1d; 10458 if (starting > 0x0003) 10459 goto f10; 10460 if (starting > 0x0002) 10461 goto f3; 10462 if (starting > 0x0001) 10463 goto f2; 10464 if (starting > 0x0000) 10465 goto f1; 10466 10467 /* Profile List */ 10468 scsi_ulto2b(0x0000, feature->feature_code); 10469 feature->flags = SGC_F_PERSISTENT | SGC_F_CURRENT; 10470 feature->add_length = 8; 10471 scsi_ulto2b(0x0008, &feature->feature_data[0]); /* CD-ROM */ 10472 feature->feature_data[2] = 0x00; 10473 scsi_ulto2b(0x0010, &feature->feature_data[4]); /* DVD-ROM */ 10474 feature->feature_data[6] = 0x01; 10475 feature = (struct scsi_get_config_feature *) 10476 &feature->feature_data[feature->add_length]; 10477 10478 f1: /* Core */ 10479 scsi_ulto2b(0x0001, feature->feature_code); 10480 feature->flags = 0x08 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10481 feature->add_length = 8; 10482 scsi_ulto4b(0x00000000, &feature->feature_data[0]); 10483 feature->feature_data[4] = 0x03; 10484 feature = (struct scsi_get_config_feature *) 10485 &feature->feature_data[feature->add_length]; 10486 10487 f2: /* Morphing */ 10488 scsi_ulto2b(0x0002, feature->feature_code); 10489 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10490 feature->add_length = 4; 10491 feature->feature_data[0] = 0x02; 10492 feature = (struct scsi_get_config_feature *) 10493 &feature->feature_data[feature->add_length]; 10494 10495 f3: /* Removable Medium */ 10496 scsi_ulto2b(0x0003, feature->feature_code); 10497 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10498 feature->add_length = 4; 10499 feature->feature_data[0] = 0x39; 10500 feature = (struct scsi_get_config_feature *) 10501 &feature->feature_data[feature->add_length]; 10502 10503 if (rt == SGC_RT_CURRENT && (lun->flags & CTL_LUN_NO_MEDIA)) 10504 goto done; 10505 10506 f10: /* Random Read */ 10507 scsi_ulto2b(0x0010, feature->feature_code); 10508 feature->flags = 0x00; 10509 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10510 feature->flags |= SGC_F_CURRENT; 10511 feature->add_length = 8; 10512 scsi_ulto4b(lun->be_lun->blocksize, &feature->feature_data[0]); 10513 scsi_ulto2b(1, &feature->feature_data[4]); 10514 feature->feature_data[6] = 0x00; 10515 feature = (struct scsi_get_config_feature *) 10516 &feature->feature_data[feature->add_length]; 10517 10518 f1d: /* Multi-Read */ 10519 scsi_ulto2b(0x001D, feature->feature_code); 10520 feature->flags = 0x00; 10521 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10522 feature->flags |= SGC_F_CURRENT; 10523 feature->add_length = 0; 10524 feature = (struct scsi_get_config_feature *) 10525 &feature->feature_data[feature->add_length]; 10526 10527 f1e: /* CD Read */ 10528 scsi_ulto2b(0x001E, feature->feature_code); 10529 feature->flags = 0x00; 10530 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10531 feature->flags |= SGC_F_CURRENT; 10532 feature->add_length = 4; 10533 feature->feature_data[0] = 0x00; 10534 feature = (struct scsi_get_config_feature *) 10535 &feature->feature_data[feature->add_length]; 10536 10537 f1f: /* DVD Read */ 10538 scsi_ulto2b(0x001F, feature->feature_code); 10539 feature->flags = 0x08; 10540 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10541 feature->flags |= SGC_F_CURRENT; 10542 feature->add_length = 4; 10543 feature->feature_data[0] = 0x01; 10544 feature->feature_data[2] = 0x03; 10545 feature = (struct scsi_get_config_feature *) 10546 &feature->feature_data[feature->add_length]; 10547 10548 f2a: /* DVD+RW */ 10549 scsi_ulto2b(0x002A, feature->feature_code); 10550 feature->flags = 0x04; 10551 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10552 feature->flags |= SGC_F_CURRENT; 10553 feature->add_length = 4; 10554 feature->feature_data[0] = 0x00; 10555 feature->feature_data[1] = 0x00; 10556 feature = (struct scsi_get_config_feature *) 10557 &feature->feature_data[feature->add_length]; 10558 10559 f2b: /* DVD+R */ 10560 scsi_ulto2b(0x002B, feature->feature_code); 10561 feature->flags = 0x00; 10562 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10563 feature->flags |= SGC_F_CURRENT; 10564 feature->add_length = 4; 10565 feature->feature_data[0] = 0x00; 10566 feature = (struct scsi_get_config_feature *) 10567 &feature->feature_data[feature->add_length]; 10568 10569 f3a: /* DVD+RW Dual Layer */ 10570 scsi_ulto2b(0x003A, feature->feature_code); 10571 feature->flags = 0x00; 10572 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10573 feature->flags |= SGC_F_CURRENT; 10574 feature->add_length = 4; 10575 feature->feature_data[0] = 0x00; 10576 feature->feature_data[1] = 0x00; 10577 feature = (struct scsi_get_config_feature *) 10578 &feature->feature_data[feature->add_length]; 10579 10580 f3b: /* DVD+R Dual Layer */ 10581 scsi_ulto2b(0x003B, feature->feature_code); 10582 feature->flags = 0x00; 10583 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10584 feature->flags |= SGC_F_CURRENT; 10585 feature->add_length = 4; 10586 feature->feature_data[0] = 0x00; 10587 feature = (struct scsi_get_config_feature *) 10588 &feature->feature_data[feature->add_length]; 10589 10590 done: 10591 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10592 if (rt == SGC_RT_SPECIFIC && data_len > 4) { 10593 feature = (struct scsi_get_config_feature *)(hdr + 1); 10594 if (scsi_2btoul(feature->feature_code) == starting) 10595 feature = (struct scsi_get_config_feature *) 10596 &feature->feature_data[feature->add_length]; 10597 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10598 } 10599 scsi_ulto4b(data_len - 4, hdr->data_length); 10600 ctsio->kern_data_len = min(data_len, alloc_len); 10601 ctsio->kern_total_len = ctsio->kern_data_len; 10602 10603 ctl_set_success(ctsio); 10604 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10605 ctsio->be_move_done = ctl_config_move_done; 10606 ctl_datamove((union ctl_io *)ctsio); 10607 return (CTL_RETVAL_COMPLETE); 10608 } 10609 10610 int 10611 ctl_get_event_status(struct ctl_scsiio *ctsio) 10612 { 10613 struct scsi_get_event_status_header *hdr; 10614 struct scsi_get_event_status *cdb; 10615 uint32_t alloc_len, data_len; 10616 10617 cdb = (struct scsi_get_event_status *)ctsio->cdb; 10618 if ((cdb->byte2 & SGESN_POLLED) == 0) { 10619 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1, 10620 /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 10621 ctl_done((union ctl_io *)ctsio); 10622 return (CTL_RETVAL_COMPLETE); 10623 } 10624 alloc_len = scsi_2btoul(cdb->length); 10625 10626 data_len = sizeof(struct scsi_get_event_status_header); 10627 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10628 ctsio->kern_sg_entries = 0; 10629 ctsio->kern_rel_offset = 0; 10630 ctsio->kern_data_len = min(data_len, alloc_len); 10631 ctsio->kern_total_len = ctsio->kern_data_len; 10632 10633 hdr = (struct scsi_get_event_status_header *)ctsio->kern_data_ptr; 10634 scsi_ulto2b(0, hdr->descr_length); 10635 hdr->nea_class = SGESN_NEA; 10636 hdr->supported_class = 0; 10637 10638 ctl_set_success(ctsio); 10639 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10640 ctsio->be_move_done = ctl_config_move_done; 10641 ctl_datamove((union ctl_io *)ctsio); 10642 return (CTL_RETVAL_COMPLETE); 10643 } 10644 10645 int 10646 ctl_mechanism_status(struct ctl_scsiio *ctsio) 10647 { 10648 struct scsi_mechanism_status_header *hdr; 10649 struct scsi_mechanism_status *cdb; 10650 uint32_t alloc_len, data_len; 10651 10652 cdb = (struct scsi_mechanism_status *)ctsio->cdb; 10653 alloc_len = scsi_2btoul(cdb->length); 10654 10655 data_len = sizeof(struct scsi_mechanism_status_header); 10656 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10657 ctsio->kern_sg_entries = 0; 10658 ctsio->kern_rel_offset = 0; 10659 ctsio->kern_data_len = min(data_len, alloc_len); 10660 ctsio->kern_total_len = ctsio->kern_data_len; 10661 10662 hdr = (struct scsi_mechanism_status_header *)ctsio->kern_data_ptr; 10663 hdr->state1 = 0x00; 10664 hdr->state2 = 0xe0; 10665 scsi_ulto3b(0, hdr->lba); 10666 hdr->slots_num = 0; 10667 scsi_ulto2b(0, hdr->slots_length); 10668 10669 ctl_set_success(ctsio); 10670 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10671 ctsio->be_move_done = ctl_config_move_done; 10672 ctl_datamove((union ctl_io *)ctsio); 10673 return (CTL_RETVAL_COMPLETE); 10674 } 10675 10676 static void 10677 ctl_ultomsf(uint32_t lba, uint8_t *buf) 10678 { 10679 10680 lba += 150; 10681 buf[0] = 0; 10682 buf[1] = bin2bcd((lba / 75) / 60); 10683 buf[2] = bin2bcd((lba / 75) % 60); 10684 buf[3] = bin2bcd(lba % 75); 10685 } 10686 10687 int 10688 ctl_read_toc(struct ctl_scsiio *ctsio) 10689 { 10690 struct ctl_lun *lun = CTL_LUN(ctsio); 10691 struct scsi_read_toc_hdr *hdr; 10692 struct scsi_read_toc_type01_descr *descr; 10693 struct scsi_read_toc *cdb; 10694 uint32_t alloc_len, data_len; 10695 int format, msf; 10696 10697 cdb = (struct scsi_read_toc *)ctsio->cdb; 10698 msf = (cdb->byte2 & CD_MSF) != 0; 10699 format = cdb->format; 10700 alloc_len = scsi_2btoul(cdb->data_len); 10701 10702 data_len = sizeof(struct scsi_read_toc_hdr); 10703 if (format == 0) 10704 data_len += 2 * sizeof(struct scsi_read_toc_type01_descr); 10705 else 10706 data_len += sizeof(struct scsi_read_toc_type01_descr); 10707 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10708 ctsio->kern_sg_entries = 0; 10709 ctsio->kern_rel_offset = 0; 10710 ctsio->kern_data_len = min(data_len, alloc_len); 10711 ctsio->kern_total_len = ctsio->kern_data_len; 10712 10713 hdr = (struct scsi_read_toc_hdr *)ctsio->kern_data_ptr; 10714 if (format == 0) { 10715 scsi_ulto2b(0x12, hdr->data_length); 10716 hdr->first = 1; 10717 hdr->last = 1; 10718 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10719 descr->addr_ctl = 0x14; 10720 descr->track_number = 1; 10721 if (msf) 10722 ctl_ultomsf(0, descr->track_start); 10723 else 10724 scsi_ulto4b(0, descr->track_start); 10725 descr++; 10726 descr->addr_ctl = 0x14; 10727 descr->track_number = 0xaa; 10728 if (msf) 10729 ctl_ultomsf(lun->be_lun->maxlba+1, descr->track_start); 10730 else 10731 scsi_ulto4b(lun->be_lun->maxlba+1, descr->track_start); 10732 } else { 10733 scsi_ulto2b(0x0a, hdr->data_length); 10734 hdr->first = 1; 10735 hdr->last = 1; 10736 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10737 descr->addr_ctl = 0x14; 10738 descr->track_number = 1; 10739 if (msf) 10740 ctl_ultomsf(0, descr->track_start); 10741 else 10742 scsi_ulto4b(0, descr->track_start); 10743 } 10744 10745 ctl_set_success(ctsio); 10746 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10747 ctsio->be_move_done = ctl_config_move_done; 10748 ctl_datamove((union ctl_io *)ctsio); 10749 return (CTL_RETVAL_COMPLETE); 10750 } 10751 10752 /* 10753 * For known CDB types, parse the LBA and length. 10754 */ 10755 static int 10756 ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10757 { 10758 10759 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 10760 ("%s: unexpected I/O type %x", __func__, io->io_hdr.io_type)); 10761 10762 switch (io->scsiio.cdb[0]) { 10763 case COMPARE_AND_WRITE: { 10764 struct scsi_compare_and_write *cdb; 10765 10766 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10767 10768 *lba = scsi_8btou64(cdb->addr); 10769 *len = cdb->length; 10770 break; 10771 } 10772 case READ_6: 10773 case WRITE_6: { 10774 struct scsi_rw_6 *cdb; 10775 10776 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10777 10778 *lba = scsi_3btoul(cdb->addr); 10779 /* only 5 bits are valid in the most significant address byte */ 10780 *lba &= 0x1fffff; 10781 *len = cdb->length; 10782 break; 10783 } 10784 case READ_10: 10785 case WRITE_10: { 10786 struct scsi_rw_10 *cdb; 10787 10788 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10789 10790 *lba = scsi_4btoul(cdb->addr); 10791 *len = scsi_2btoul(cdb->length); 10792 break; 10793 } 10794 case WRITE_VERIFY_10: { 10795 struct scsi_write_verify_10 *cdb; 10796 10797 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10798 10799 *lba = scsi_4btoul(cdb->addr); 10800 *len = scsi_2btoul(cdb->length); 10801 break; 10802 } 10803 case READ_12: 10804 case WRITE_12: { 10805 struct scsi_rw_12 *cdb; 10806 10807 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10808 10809 *lba = scsi_4btoul(cdb->addr); 10810 *len = scsi_4btoul(cdb->length); 10811 break; 10812 } 10813 case WRITE_VERIFY_12: { 10814 struct scsi_write_verify_12 *cdb; 10815 10816 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10817 10818 *lba = scsi_4btoul(cdb->addr); 10819 *len = scsi_4btoul(cdb->length); 10820 break; 10821 } 10822 case READ_16: 10823 case WRITE_16: { 10824 struct scsi_rw_16 *cdb; 10825 10826 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10827 10828 *lba = scsi_8btou64(cdb->addr); 10829 *len = scsi_4btoul(cdb->length); 10830 break; 10831 } 10832 case WRITE_ATOMIC_16: { 10833 struct scsi_write_atomic_16 *cdb; 10834 10835 cdb = (struct scsi_write_atomic_16 *)io->scsiio.cdb; 10836 10837 *lba = scsi_8btou64(cdb->addr); 10838 *len = scsi_2btoul(cdb->length); 10839 break; 10840 } 10841 case WRITE_VERIFY_16: { 10842 struct scsi_write_verify_16 *cdb; 10843 10844 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10845 10846 *lba = scsi_8btou64(cdb->addr); 10847 *len = scsi_4btoul(cdb->length); 10848 break; 10849 } 10850 case WRITE_SAME_10: { 10851 struct scsi_write_same_10 *cdb; 10852 10853 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10854 10855 *lba = scsi_4btoul(cdb->addr); 10856 *len = scsi_2btoul(cdb->length); 10857 break; 10858 } 10859 case WRITE_SAME_16: { 10860 struct scsi_write_same_16 *cdb; 10861 10862 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10863 10864 *lba = scsi_8btou64(cdb->addr); 10865 *len = scsi_4btoul(cdb->length); 10866 break; 10867 } 10868 case VERIFY_10: { 10869 struct scsi_verify_10 *cdb; 10870 10871 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10872 10873 *lba = scsi_4btoul(cdb->addr); 10874 *len = scsi_2btoul(cdb->length); 10875 break; 10876 } 10877 case VERIFY_12: { 10878 struct scsi_verify_12 *cdb; 10879 10880 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10881 10882 *lba = scsi_4btoul(cdb->addr); 10883 *len = scsi_4btoul(cdb->length); 10884 break; 10885 } 10886 case VERIFY_16: { 10887 struct scsi_verify_16 *cdb; 10888 10889 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10890 10891 *lba = scsi_8btou64(cdb->addr); 10892 *len = scsi_4btoul(cdb->length); 10893 break; 10894 } 10895 case UNMAP: { 10896 *lba = 0; 10897 *len = UINT64_MAX; 10898 break; 10899 } 10900 case SERVICE_ACTION_IN: { /* GET LBA STATUS */ 10901 struct scsi_get_lba_status *cdb; 10902 10903 cdb = (struct scsi_get_lba_status *)io->scsiio.cdb; 10904 *lba = scsi_8btou64(cdb->addr); 10905 *len = UINT32_MAX; 10906 break; 10907 } 10908 default: 10909 *lba = 0; 10910 *len = UINT64_MAX; 10911 return (1); 10912 } 10913 10914 return (0); 10915 } 10916 10917 static ctl_action 10918 ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2, 10919 bool seq) 10920 { 10921 uint64_t endlba1, endlba2; 10922 10923 endlba1 = lba1 + len1 - (seq ? 0 : 1); 10924 endlba2 = lba2 + len2 - 1; 10925 10926 if ((endlba1 < lba2) || (endlba2 < lba1)) 10927 return (CTL_ACTION_PASS); 10928 else 10929 return (CTL_ACTION_BLOCK); 10930 } 10931 10932 static int 10933 ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10934 { 10935 struct ctl_ptr_len_flags *ptrlen; 10936 struct scsi_unmap_desc *buf, *end, *range; 10937 uint64_t lba; 10938 uint32_t len; 10939 10940 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 10941 ("%s: unexpected I/O type %x", __func__, io->io_hdr.io_type)); 10942 10943 /* If not UNMAP -- go other way. */ 10944 if (io->scsiio.cdb[0] != UNMAP) 10945 return (CTL_ACTION_SKIP); 10946 10947 /* If UNMAP without data -- block and wait for data. */ 10948 ptrlen = (struct ctl_ptr_len_flags *) 10949 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10950 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10951 ptrlen->ptr == NULL) 10952 return (CTL_ACTION_BLOCK); 10953 10954 /* UNMAP with data -- check for collision. */ 10955 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10956 end = buf + ptrlen->len / sizeof(*buf); 10957 for (range = buf; range < end; range++) { 10958 lba = scsi_8btou64(range->lba); 10959 len = scsi_4btoul(range->length); 10960 if ((lba < lba2 + len2) && (lba + len > lba2)) 10961 return (CTL_ACTION_BLOCK); 10962 } 10963 return (CTL_ACTION_PASS); 10964 } 10965 10966 static ctl_action 10967 ctl_extent_check(union ctl_io *io1, union ctl_io *io2, bool seq) 10968 { 10969 uint64_t lba1, lba2; 10970 uint64_t len1, len2; 10971 int retval; 10972 10973 retval = ctl_get_lba_len(io2, &lba2, &len2); 10974 KASSERT(retval == 0, ("ctl_get_lba_len() error")); 10975 10976 retval = ctl_extent_check_unmap(io1, lba2, len2); 10977 if (retval != CTL_ACTION_SKIP) 10978 return (retval); 10979 10980 retval = ctl_get_lba_len(io1, &lba1, &len1); 10981 KASSERT(retval == 0, ("ctl_get_lba_len() error")); 10982 10983 if (seq && (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE)) 10984 seq = FALSE; 10985 return (ctl_extent_check_lba(lba1, len1, lba2, len2, seq)); 10986 } 10987 10988 static ctl_action 10989 ctl_seq_check(union ctl_io *io1, union ctl_io *io2) 10990 { 10991 uint64_t lba1, lba2; 10992 uint64_t len1, len2; 10993 int retval __diagused; 10994 10995 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10996 return (CTL_ACTION_PASS); 10997 retval = ctl_get_lba_len(io1, &lba1, &len1); 10998 KASSERT(retval == 0, ("ctl_get_lba_len() error")); 10999 retval = ctl_get_lba_len(io2, &lba2, &len2); 11000 KASSERT(retval == 0, ("ctl_get_lba_len() error")); 11001 11002 if (lba1 + len1 == lba2) 11003 return (CTL_ACTION_BLOCK); 11004 return (CTL_ACTION_PASS); 11005 } 11006 11007 static ctl_action 11008 ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 11009 const uint8_t *serialize_row, union ctl_io *ooa_io) 11010 { 11011 11012 /* 11013 * The initiator attempted multiple untagged commands at the same 11014 * time. Can't do that. 11015 */ 11016 if (__predict_false(pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11017 && __predict_false(ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 11018 && ((pending_io->io_hdr.nexus.targ_port == 11019 ooa_io->io_hdr.nexus.targ_port) 11020 && (pending_io->io_hdr.nexus.initid == 11021 ooa_io->io_hdr.nexus.initid)) 11022 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 11023 CTL_FLAG_STATUS_SENT)) == 0)) 11024 return (CTL_ACTION_OVERLAP); 11025 11026 /* 11027 * The initiator attempted to send multiple tagged commands with 11028 * the same ID. (It's fine if different initiators have the same 11029 * tag ID.) 11030 * 11031 * Even if all of those conditions are true, we don't kill the I/O 11032 * if the command ahead of us has been aborted. We won't end up 11033 * sending it to the FETD, and it's perfectly legal to resend a 11034 * command with the same tag number as long as the previous 11035 * instance of this tag number has been aborted somehow. 11036 */ 11037 if (__predict_true(pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11038 && __predict_true(ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 11039 && __predict_false(pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 11040 && ((pending_io->io_hdr.nexus.targ_port == 11041 ooa_io->io_hdr.nexus.targ_port) 11042 && (pending_io->io_hdr.nexus.initid == 11043 ooa_io->io_hdr.nexus.initid)) 11044 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 11045 CTL_FLAG_STATUS_SENT)) == 0)) 11046 return (CTL_ACTION_OVERLAP_TAG); 11047 11048 /* 11049 * If we get a head of queue tag, SAM-3 says that we should 11050 * immediately execute it. 11051 * 11052 * What happens if this command would normally block for some other 11053 * reason? e.g. a request sense with a head of queue tag 11054 * immediately after a write. Normally that would block, but this 11055 * will result in its getting executed immediately... 11056 * 11057 * We currently return "pass" instead of "skip", so we'll end up 11058 * going through the rest of the queue to check for overlapped tags. 11059 * 11060 * XXX KDM check for other types of blockage first?? 11061 */ 11062 if (__predict_false(pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE)) 11063 return (CTL_ACTION_PASS); 11064 11065 /* 11066 * Simple tags get blocked until all head of queue and ordered tags 11067 * ahead of them have completed. I'm lumping untagged commands in 11068 * with simple tags here. XXX KDM is that the right thing to do? 11069 */ 11070 if (__predict_false(ooa_io->scsiio.tag_type == CTL_TAG_ORDERED) || 11071 __predict_false(ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE)) 11072 return (CTL_ACTION_BLOCK); 11073 11074 /* Unsupported command in OOA queue. */ 11075 if (__predict_false(ooa_io->scsiio.seridx == CTL_SERIDX_INVLD)) 11076 return (CTL_ACTION_PASS); 11077 11078 switch (serialize_row[ooa_io->scsiio.seridx]) { 11079 case CTL_SER_SEQ: 11080 if (lun->be_lun->serseq != CTL_LUN_SERSEQ_OFF) 11081 return (ctl_seq_check(ooa_io, pending_io)); 11082 /* FALLTHROUGH */ 11083 case CTL_SER_PASS: 11084 return (CTL_ACTION_PASS); 11085 case CTL_SER_EXTENTOPT: 11086 if ((lun->MODE_CTRL.queue_flags & SCP_QUEUE_ALG_MASK) == 11087 SCP_QUEUE_ALG_UNRESTRICTED) 11088 return (CTL_ACTION_PASS); 11089 /* FALLTHROUGH */ 11090 case CTL_SER_EXTENT: 11091 return (ctl_extent_check(ooa_io, pending_io, 11092 (lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 11093 case CTL_SER_BLOCKOPT: 11094 if ((lun->MODE_CTRL.queue_flags & SCP_QUEUE_ALG_MASK) == 11095 SCP_QUEUE_ALG_UNRESTRICTED) 11096 return (CTL_ACTION_PASS); 11097 /* FALLTHROUGH */ 11098 case CTL_SER_BLOCK: 11099 return (CTL_ACTION_BLOCK); 11100 default: 11101 __assert_unreachable(); 11102 } 11103 } 11104 11105 /* 11106 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 11107 * Assumptions: 11108 * - pending_io is generally either incoming, or on the blocked queue 11109 * - starting I/O is the I/O we want to start the check with. 11110 */ 11111 static ctl_action 11112 ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 11113 union ctl_io **starting_io) 11114 { 11115 union ctl_io *ooa_io = *starting_io; 11116 const uint8_t *serialize_row; 11117 ctl_action action; 11118 11119 mtx_assert(&lun->lun_lock, MA_OWNED); 11120 11121 /* 11122 * Aborted commands are not going to be executed and may even 11123 * not report completion, so we don't care about their order. 11124 * Let them complete ASAP to clean the OOA queue. 11125 */ 11126 if (__predict_false(pending_io->io_hdr.flags & CTL_FLAG_ABORT)) 11127 return (CTL_ACTION_SKIP); 11128 11129 /* 11130 * Ordered tags have to block until all items ahead of them have 11131 * completed. If we get called with an ordered tag, we always 11132 * block, if something else is ahead of us in the queue. 11133 */ 11134 if ((pending_io->scsiio.tag_type == CTL_TAG_ORDERED) && 11135 (ooa_io != NULL)) 11136 return (CTL_ACTION_BLOCK); 11137 11138 serialize_row = ctl_serialize_table[pending_io->scsiio.seridx]; 11139 11140 /* 11141 * Run back along the OOA queue, starting with the current 11142 * blocked I/O and going through every I/O before it on the 11143 * queue. If starting_io is NULL, we'll just end up returning 11144 * CTL_ACTION_PASS. 11145 */ 11146 for (; ooa_io != NULL; 11147 ooa_io = (union ctl_io *)LIST_NEXT(&ooa_io->io_hdr, ooa_links)) { 11148 action = ctl_check_for_blockage(lun, pending_io, serialize_row, 11149 ooa_io); 11150 if (action != CTL_ACTION_PASS) { 11151 *starting_io = ooa_io; 11152 return (action); 11153 } 11154 } 11155 11156 *starting_io = NULL; 11157 return (CTL_ACTION_PASS); 11158 } 11159 11160 /* 11161 * Try to unblock the specified I/O. 11162 * 11163 * skip parameter allows explicitly skip present blocker of the I/O, 11164 * starting from the previous one on OOA queue. It can be used when 11165 * we know for sure that the blocker I/O does no longer count. 11166 */ 11167 static void 11168 ctl_try_unblock_io(struct ctl_lun *lun, union ctl_io *io, bool skip) 11169 { 11170 struct ctl_softc *softc = lun->ctl_softc; 11171 union ctl_io *bio, *obio; 11172 const struct ctl_cmd_entry *entry; 11173 union ctl_ha_msg msg_info; 11174 ctl_action action; 11175 11176 mtx_assert(&lun->lun_lock, MA_OWNED); 11177 11178 if (io->io_hdr.blocker == NULL) 11179 return; 11180 11181 obio = bio = io->io_hdr.blocker; 11182 if (skip) 11183 bio = (union ctl_io *)LIST_NEXT(&bio->io_hdr, ooa_links); 11184 action = ctl_check_ooa(lun, io, &bio); 11185 if (action == CTL_ACTION_BLOCK) { 11186 /* Still blocked, but may be by different I/O now. */ 11187 if (bio != obio) { 11188 TAILQ_REMOVE(&obio->io_hdr.blocked_queue, 11189 &io->io_hdr, blocked_links); 11190 TAILQ_INSERT_TAIL(&bio->io_hdr.blocked_queue, 11191 &io->io_hdr, blocked_links); 11192 io->io_hdr.blocker = bio; 11193 } 11194 return; 11195 } 11196 11197 /* No longer blocked, one way or another. */ 11198 TAILQ_REMOVE(&obio->io_hdr.blocked_queue, &io->io_hdr, blocked_links); 11199 io->io_hdr.blocker = NULL; 11200 11201 switch (action) { 11202 case CTL_ACTION_PASS: 11203 case CTL_ACTION_SKIP: 11204 11205 /* Serializing commands from the other SC retire there. */ 11206 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) && 11207 (softc->ha_mode != CTL_HA_MODE_XFER)) { 11208 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11209 msg_info.hdr.original_sc = io->io_hdr.remote_io; 11210 msg_info.hdr.serializing_sc = io; 11211 msg_info.hdr.msg_type = CTL_MSG_R2R; 11212 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11213 sizeof(msg_info.hdr), M_NOWAIT); 11214 break; 11215 } 11216 11217 /* 11218 * Check this I/O for LUN state changes that may have happened 11219 * while this command was blocked. The LUN state may have been 11220 * changed by a command ahead of us in the queue. 11221 */ 11222 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 11223 if (ctl_scsiio_lun_check(lun, entry, &io->scsiio) != 0) { 11224 ctl_done(io); 11225 break; 11226 } 11227 11228 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11229 ctl_enqueue_rtr(io); 11230 break; 11231 default: 11232 __assert_unreachable(); 11233 case CTL_ACTION_OVERLAP: 11234 ctl_set_overlapped_cmd(&io->scsiio); 11235 goto error; 11236 case CTL_ACTION_OVERLAP_TAG: 11237 ctl_set_overlapped_tag(&io->scsiio, 11238 io->scsiio.tag_num & 0xff); 11239 error: 11240 /* Serializing commands from the other SC are done here. */ 11241 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) && 11242 (softc->ha_mode != CTL_HA_MODE_XFER)) { 11243 ctl_try_unblock_others(lun, io, TRUE); 11244 LIST_REMOVE(&io->io_hdr, ooa_links); 11245 11246 ctl_copy_sense_data_back(io, &msg_info); 11247 msg_info.hdr.original_sc = io->io_hdr.remote_io; 11248 msg_info.hdr.serializing_sc = NULL; 11249 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 11250 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11251 sizeof(msg_info.scsi), M_WAITOK); 11252 ctl_free_io(io); 11253 break; 11254 } 11255 11256 ctl_done(io); 11257 break; 11258 } 11259 } 11260 11261 /* 11262 * Try to unblock I/Os blocked by the specified I/O. 11263 * 11264 * skip parameter allows explicitly skip the specified I/O as blocker, 11265 * starting from the previous one on the OOA queue. It can be used when 11266 * we know for sure that the specified I/O does no longer count (done). 11267 * It has to be still on OOA queue though so that we know where to start. 11268 */ 11269 static void 11270 ctl_try_unblock_others(struct ctl_lun *lun, union ctl_io *bio, bool skip) 11271 { 11272 union ctl_io *io, *next_io; 11273 11274 mtx_assert(&lun->lun_lock, MA_OWNED); 11275 11276 for (io = (union ctl_io *)TAILQ_FIRST(&bio->io_hdr.blocked_queue); 11277 io != NULL; io = next_io) { 11278 next_io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, blocked_links); 11279 11280 KASSERT(io->io_hdr.blocker != NULL, 11281 ("I/O %p on blocked list without blocker", io)); 11282 ctl_try_unblock_io(lun, io, skip); 11283 } 11284 KASSERT(!skip || TAILQ_EMPTY(&bio->io_hdr.blocked_queue), 11285 ("blocked_queue is not empty after skipping %p", bio)); 11286 } 11287 11288 /* 11289 * This routine (with one exception) checks LUN flags that can be set by 11290 * commands ahead of us in the OOA queue. These flags have to be checked 11291 * when a command initially comes in, and when we pull a command off the 11292 * blocked queue and are preparing to execute it. The reason we have to 11293 * check these flags for commands on the blocked queue is that the LUN 11294 * state may have been changed by a command ahead of us while we're on the 11295 * blocked queue. 11296 * 11297 * Ordering is somewhat important with these checks, so please pay 11298 * careful attention to the placement of any new checks. 11299 */ 11300 static int 11301 ctl_scsiio_lun_check(struct ctl_lun *lun, 11302 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11303 { 11304 struct ctl_softc *softc = lun->ctl_softc; 11305 int retval; 11306 uint32_t residx; 11307 11308 retval = 0; 11309 11310 mtx_assert(&lun->lun_lock, MA_OWNED); 11311 11312 /* 11313 * If this shelf is a secondary shelf controller, we may have to 11314 * reject some commands disallowed by HA mode and link state. 11315 */ 11316 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11317 if (softc->ha_link == CTL_HA_LINK_OFFLINE && 11318 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11319 ctl_set_lun_unavail(ctsio); 11320 retval = 1; 11321 goto bailout; 11322 } 11323 if ((lun->flags & CTL_LUN_PEER_SC_PRIMARY) == 0 && 11324 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11325 ctl_set_lun_transit(ctsio); 11326 retval = 1; 11327 goto bailout; 11328 } 11329 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY && 11330 (entry->flags & CTL_CMD_FLAG_OK_ON_STANDBY) == 0) { 11331 ctl_set_lun_standby(ctsio); 11332 retval = 1; 11333 goto bailout; 11334 } 11335 11336 /* The rest of checks are only done on executing side */ 11337 if (softc->ha_mode == CTL_HA_MODE_XFER) 11338 goto bailout; 11339 } 11340 11341 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11342 if (lun->be_lun->flags & CTL_LUN_FLAG_READONLY) { 11343 ctl_set_hw_write_protected(ctsio); 11344 retval = 1; 11345 goto bailout; 11346 } 11347 if ((lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) { 11348 ctl_set_sense(ctsio, /*current_error*/ 1, 11349 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11350 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11351 retval = 1; 11352 goto bailout; 11353 } 11354 } 11355 11356 /* 11357 * Check for a reservation conflict. If this command isn't allowed 11358 * even on reserved LUNs, and if this initiator isn't the one who 11359 * reserved us, reject the command with a reservation conflict. 11360 */ 11361 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11362 if ((lun->flags & CTL_LUN_RESERVED) 11363 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11364 if (lun->res_idx != residx) { 11365 ctl_set_reservation_conflict(ctsio); 11366 retval = 1; 11367 goto bailout; 11368 } 11369 } 11370 11371 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11372 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11373 /* No reservation or command is allowed. */; 11374 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11375 (lun->pr_res_type == SPR_TYPE_WR_EX || 11376 lun->pr_res_type == SPR_TYPE_WR_EX_RO || 11377 lun->pr_res_type == SPR_TYPE_WR_EX_AR)) { 11378 /* The command is allowed for Write Exclusive resv. */; 11379 } else { 11380 /* 11381 * if we aren't registered or it's a res holder type 11382 * reservation and this isn't the res holder then set a 11383 * conflict. 11384 */ 11385 if (ctl_get_prkey(lun, residx) == 0 || 11386 (residx != lun->pr_res_idx && lun->pr_res_type < 4)) { 11387 ctl_set_reservation_conflict(ctsio); 11388 retval = 1; 11389 goto bailout; 11390 } 11391 } 11392 11393 if ((entry->flags & CTL_CMD_FLAG_OK_ON_NO_MEDIA) == 0) { 11394 if (lun->flags & CTL_LUN_EJECTED) 11395 ctl_set_lun_ejected(ctsio); 11396 else if (lun->flags & CTL_LUN_NO_MEDIA) { 11397 if (lun->flags & CTL_LUN_REMOVABLE) 11398 ctl_set_lun_no_media(ctsio); 11399 else 11400 ctl_set_lun_int_reqd(ctsio); 11401 } else if (lun->flags & CTL_LUN_STOPPED) 11402 ctl_set_lun_stopped(ctsio); 11403 else 11404 goto bailout; 11405 retval = 1; 11406 goto bailout; 11407 } 11408 11409 bailout: 11410 return (retval); 11411 } 11412 11413 static void 11414 ctl_failover_io(union ctl_io *io, int have_lock) 11415 { 11416 ctl_set_busy(&io->scsiio); 11417 ctl_done(io); 11418 } 11419 11420 static void 11421 ctl_failover_lun(union ctl_io *rio) 11422 { 11423 struct ctl_softc *softc = CTL_SOFTC(rio); 11424 struct ctl_lun *lun; 11425 struct ctl_io_hdr *io, *next_io; 11426 uint32_t targ_lun; 11427 11428 targ_lun = rio->io_hdr.nexus.targ_mapped_lun; 11429 CTL_DEBUG_PRINT(("FAILOVER for lun %u\n", targ_lun)); 11430 11431 /* Find and lock the LUN. */ 11432 mtx_lock(&softc->ctl_lock); 11433 if (targ_lun > ctl_max_luns || 11434 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11435 mtx_unlock(&softc->ctl_lock); 11436 return; 11437 } 11438 mtx_lock(&lun->lun_lock); 11439 mtx_unlock(&softc->ctl_lock); 11440 if (lun->flags & CTL_LUN_DISABLED) { 11441 mtx_unlock(&lun->lun_lock); 11442 return; 11443 } 11444 11445 if (softc->ha_mode == CTL_HA_MODE_XFER) { 11446 LIST_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11447 /* We are master */ 11448 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11449 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11450 io->flags |= CTL_FLAG_ABORT | 11451 CTL_FLAG_FAILOVER; 11452 ctl_try_unblock_io(lun, 11453 (union ctl_io *)io, FALSE); 11454 } else { /* This can be only due to DATAMOVE */ 11455 io->msg_type = CTL_MSG_DATAMOVE_DONE; 11456 io->flags &= ~CTL_FLAG_DMA_INPROG; 11457 io->flags |= CTL_FLAG_IO_ACTIVE; 11458 io->port_status = 31340; 11459 ctl_enqueue_isc((union ctl_io *)io); 11460 } 11461 } else 11462 /* We are slave */ 11463 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11464 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11465 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11466 io->flags |= CTL_FLAG_FAILOVER; 11467 } else { 11468 ctl_set_busy(&((union ctl_io *)io)-> 11469 scsiio); 11470 ctl_done((union ctl_io *)io); 11471 } 11472 } 11473 } 11474 } else { /* SERIALIZE modes */ 11475 LIST_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11476 /* We are master */ 11477 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11478 if (io->blocker != NULL) { 11479 TAILQ_REMOVE(&io->blocker->io_hdr.blocked_queue, 11480 io, blocked_links); 11481 io->blocker = NULL; 11482 } 11483 ctl_try_unblock_others(lun, (union ctl_io *)io, 11484 TRUE); 11485 LIST_REMOVE(io, ooa_links); 11486 ctl_free_io((union ctl_io *)io); 11487 } else 11488 /* We are slave */ 11489 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11490 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11491 if (!(io->flags & CTL_FLAG_IO_ACTIVE)) { 11492 ctl_set_busy(&((union ctl_io *)io)-> 11493 scsiio); 11494 ctl_done((union ctl_io *)io); 11495 } 11496 } 11497 } 11498 } 11499 mtx_unlock(&lun->lun_lock); 11500 } 11501 11502 static void 11503 ctl_scsiio_precheck(struct ctl_scsiio *ctsio) 11504 { 11505 struct ctl_softc *softc = CTL_SOFTC(ctsio); 11506 struct ctl_lun *lun; 11507 const struct ctl_cmd_entry *entry; 11508 union ctl_io *bio; 11509 uint32_t initidx, targ_lun; 11510 11511 lun = NULL; 11512 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11513 if (targ_lun < ctl_max_luns) 11514 lun = softc->ctl_luns[targ_lun]; 11515 if (lun) { 11516 /* 11517 * If the LUN is invalid, pretend that it doesn't exist. 11518 * It will go away as soon as all pending I/O has been 11519 * completed. 11520 */ 11521 mtx_lock(&lun->lun_lock); 11522 if (lun->flags & CTL_LUN_DISABLED) { 11523 mtx_unlock(&lun->lun_lock); 11524 lun = NULL; 11525 } 11526 } 11527 CTL_LUN(ctsio) = lun; 11528 if (lun) { 11529 CTL_BACKEND_LUN(ctsio) = lun->be_lun; 11530 11531 /* 11532 * Every I/O goes into the OOA queue for a particular LUN, 11533 * and stays there until completion. 11534 */ 11535 #ifdef CTL_TIME_IO 11536 if (LIST_EMPTY(&lun->ooa_queue)) 11537 lun->idle_time += getsbinuptime() - lun->last_busy; 11538 #endif 11539 LIST_INSERT_HEAD(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 11540 } 11541 11542 /* Get command entry and return error if it is unsuppotyed. */ 11543 entry = ctl_validate_command(ctsio); 11544 if (entry == NULL) { 11545 if (lun) 11546 mtx_unlock(&lun->lun_lock); 11547 return; 11548 } 11549 11550 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11551 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11552 11553 /* 11554 * Check to see whether we can send this command to LUNs that don't 11555 * exist. This should pretty much only be the case for inquiry 11556 * and request sense. Further checks, below, really require having 11557 * a LUN, so we can't really check the command anymore. Just put 11558 * it on the rtr queue. 11559 */ 11560 if (lun == NULL) { 11561 if (entry->flags & CTL_CMD_FLAG_OK_ON_NO_LUN) { 11562 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11563 ctl_enqueue_rtr((union ctl_io *)ctsio); 11564 return; 11565 } 11566 11567 ctl_set_unsupported_lun(ctsio); 11568 ctl_done((union ctl_io *)ctsio); 11569 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11570 return; 11571 } else { 11572 /* 11573 * Make sure we support this particular command on this LUN. 11574 * e.g., we don't support writes to the control LUN. 11575 */ 11576 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11577 mtx_unlock(&lun->lun_lock); 11578 ctl_set_invalid_opcode(ctsio); 11579 ctl_done((union ctl_io *)ctsio); 11580 return; 11581 } 11582 } 11583 11584 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11585 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 struct scsi_sense_data *ps; 11594 11595 ps = lun->pending_sense[initidx / CTL_MAX_INIT_PER_PORT]; 11596 if (ps != NULL) 11597 ps[initidx % CTL_MAX_INIT_PER_PORT].error_code = 0; 11598 } 11599 11600 /* 11601 * If the command has this flag set, it handles its own unit 11602 * attention reporting, we shouldn't do anything. Otherwise we 11603 * check for any pending unit attentions, and send them back to the 11604 * initiator. We only do this when a command initially comes in, 11605 * not when we pull it off the blocked queue. 11606 * 11607 * According to SAM-3, section 5.3.2, the order that things get 11608 * presented back to the host is basically unit attentions caused 11609 * by some sort of reset event, busy status, reservation conflicts 11610 * or task set full, and finally any other status. 11611 * 11612 * One issue here is that some of the unit attentions we report 11613 * don't fall into the "reset" category (e.g. "reported luns data 11614 * has changed"). So reporting it here, before the reservation 11615 * check, may be technically wrong. I guess the only thing to do 11616 * would be to check for and report the reset events here, and then 11617 * check for the other unit attention types after we check for a 11618 * reservation conflict. 11619 * 11620 * XXX KDM need to fix this 11621 */ 11622 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11623 ctl_ua_type ua_type; 11624 u_int sense_len = 0; 11625 11626 ua_type = ctl_build_ua(lun, initidx, &ctsio->sense_data, 11627 &sense_len, SSD_TYPE_NONE); 11628 if (ua_type != CTL_UA_NONE) { 11629 mtx_unlock(&lun->lun_lock); 11630 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11631 ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 11632 ctsio->sense_len = sense_len; 11633 ctl_done((union ctl_io *)ctsio); 11634 return; 11635 } 11636 } 11637 11638 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 11639 mtx_unlock(&lun->lun_lock); 11640 ctl_done((union ctl_io *)ctsio); 11641 return; 11642 } 11643 11644 /* 11645 * XXX CHD this is where we want to send IO to other side if 11646 * this LUN is secondary on this SC. We will need to make a copy 11647 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11648 * the copy we send as FROM_OTHER. 11649 * We also need to stuff the address of the original IO so we can 11650 * find it easily. Something similar will need be done on the other 11651 * side so when we are done we can find the copy. 11652 */ 11653 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 11654 (lun->flags & CTL_LUN_PEER_SC_PRIMARY) != 0 && 11655 (entry->flags & CTL_CMD_FLAG_RUN_HERE) == 0) { 11656 union ctl_ha_msg msg_info; 11657 int isc_retval; 11658 11659 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11660 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11661 mtx_unlock(&lun->lun_lock); 11662 11663 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11664 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11665 msg_info.hdr.serializing_sc = NULL; 11666 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11667 msg_info.scsi.tag_num = ctsio->tag_num; 11668 msg_info.scsi.tag_type = ctsio->tag_type; 11669 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11670 msg_info.scsi.cdb_len = ctsio->cdb_len; 11671 msg_info.scsi.priority = ctsio->priority; 11672 11673 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11674 sizeof(msg_info.scsi) - sizeof(msg_info.scsi.sense_data), 11675 M_WAITOK)) > CTL_HA_STATUS_SUCCESS) { 11676 ctsio->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11677 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 11678 ctl_set_busy(ctsio); 11679 ctl_done((union ctl_io *)ctsio); 11680 return; 11681 } 11682 return; 11683 } 11684 11685 bio = (union ctl_io *)LIST_NEXT(&ctsio->io_hdr, ooa_links); 11686 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, &bio)) { 11687 case CTL_ACTION_PASS: 11688 case CTL_ACTION_SKIP: 11689 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11690 mtx_unlock(&lun->lun_lock); 11691 ctl_enqueue_rtr((union ctl_io *)ctsio); 11692 break; 11693 case CTL_ACTION_BLOCK: 11694 ctsio->io_hdr.blocker = bio; 11695 TAILQ_INSERT_TAIL(&bio->io_hdr.blocked_queue, &ctsio->io_hdr, 11696 blocked_links); 11697 mtx_unlock(&lun->lun_lock); 11698 break; 11699 case CTL_ACTION_OVERLAP: 11700 mtx_unlock(&lun->lun_lock); 11701 ctl_set_overlapped_cmd(ctsio); 11702 ctl_done((union ctl_io *)ctsio); 11703 break; 11704 case CTL_ACTION_OVERLAP_TAG: 11705 mtx_unlock(&lun->lun_lock); 11706 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11707 ctl_done((union ctl_io *)ctsio); 11708 break; 11709 default: 11710 __assert_unreachable(); 11711 } 11712 } 11713 11714 const struct ctl_cmd_entry * 11715 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11716 { 11717 const struct ctl_cmd_entry *entry; 11718 int service_action; 11719 11720 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11721 if (sa) 11722 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11723 if (entry->flags & CTL_CMD_FLAG_SA5) { 11724 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11725 entry = &((const struct ctl_cmd_entry *) 11726 entry->execute)[service_action]; 11727 } 11728 return (entry); 11729 } 11730 11731 const struct ctl_cmd_entry * 11732 ctl_validate_command(struct ctl_scsiio *ctsio) 11733 { 11734 const struct ctl_cmd_entry *entry; 11735 int i, sa; 11736 uint8_t diff; 11737 11738 entry = ctl_get_cmd_entry(ctsio, &sa); 11739 ctsio->seridx = entry->seridx; 11740 if (entry->execute == NULL) { 11741 if (sa) 11742 ctl_set_invalid_field(ctsio, 11743 /*sks_valid*/ 1, 11744 /*command*/ 1, 11745 /*field*/ 1, 11746 /*bit_valid*/ 1, 11747 /*bit*/ 4); 11748 else 11749 ctl_set_invalid_opcode(ctsio); 11750 ctl_done((union ctl_io *)ctsio); 11751 return (NULL); 11752 } 11753 KASSERT(entry->length > 0, 11754 ("Not defined length for command 0x%02x/0x%02x", 11755 ctsio->cdb[0], ctsio->cdb[1])); 11756 for (i = 1; i < entry->length; i++) { 11757 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11758 if (diff == 0) 11759 continue; 11760 ctl_set_invalid_field(ctsio, 11761 /*sks_valid*/ 1, 11762 /*command*/ 1, 11763 /*field*/ i, 11764 /*bit_valid*/ 1, 11765 /*bit*/ fls(diff) - 1); 11766 ctl_done((union ctl_io *)ctsio); 11767 return (NULL); 11768 } 11769 return (entry); 11770 } 11771 11772 static int 11773 ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11774 { 11775 11776 switch (lun_type) { 11777 case T_DIRECT: 11778 if ((entry->flags & CTL_CMD_FLAG_OK_ON_DIRECT) == 0) 11779 return (0); 11780 break; 11781 case T_PROCESSOR: 11782 if ((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) 11783 return (0); 11784 break; 11785 case T_CDROM: 11786 if ((entry->flags & CTL_CMD_FLAG_OK_ON_CDROM) == 0) 11787 return (0); 11788 break; 11789 default: 11790 return (0); 11791 } 11792 return (1); 11793 } 11794 11795 static int 11796 ctl_scsiio(struct ctl_scsiio *ctsio) 11797 { 11798 int retval; 11799 const struct ctl_cmd_entry *entry; 11800 11801 retval = CTL_RETVAL_COMPLETE; 11802 11803 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11804 11805 entry = ctl_get_cmd_entry(ctsio, NULL); 11806 11807 /* 11808 * If this I/O has been aborted, just send it straight to 11809 * ctl_done() without executing it. 11810 */ 11811 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11812 ctl_done((union ctl_io *)ctsio); 11813 goto bailout; 11814 } 11815 11816 /* 11817 * All the checks should have been handled by ctl_scsiio_precheck(). 11818 * We should be clear now to just execute the I/O. 11819 */ 11820 retval = entry->execute(ctsio); 11821 11822 bailout: 11823 return (retval); 11824 } 11825 11826 static int 11827 ctl_target_reset(union ctl_io *io) 11828 { 11829 struct ctl_softc *softc = CTL_SOFTC(io); 11830 struct ctl_port *port = CTL_PORT(io); 11831 struct ctl_lun *lun; 11832 uint32_t initidx; 11833 ctl_ua_type ua_type; 11834 11835 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11836 union ctl_ha_msg msg_info; 11837 11838 msg_info.hdr.nexus = io->io_hdr.nexus; 11839 msg_info.task.task_action = io->taskio.task_action; 11840 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11841 msg_info.hdr.original_sc = NULL; 11842 msg_info.hdr.serializing_sc = NULL; 11843 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11844 sizeof(msg_info.task), M_WAITOK); 11845 } 11846 11847 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11848 if (io->taskio.task_action == CTL_TASK_TARGET_RESET) 11849 ua_type = CTL_UA_TARG_RESET; 11850 else 11851 ua_type = CTL_UA_BUS_RESET; 11852 mtx_lock(&softc->ctl_lock); 11853 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11854 if (port != NULL && 11855 ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 11856 continue; 11857 ctl_do_lun_reset(lun, initidx, ua_type); 11858 } 11859 mtx_unlock(&softc->ctl_lock); 11860 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11861 return (0); 11862 } 11863 11864 /* 11865 * The LUN should always be set. The I/O is optional, and is used to 11866 * distinguish between I/Os sent by this initiator, and by other 11867 * initiators. We set unit attention for initiators other than this one. 11868 * SAM-3 is vague on this point. It does say that a unit attention should 11869 * be established for other initiators when a LUN is reset (see section 11870 * 5.7.3), but it doesn't specifically say that the unit attention should 11871 * be established for this particular initiator when a LUN is reset. Here 11872 * is the relevant text, from SAM-3 rev 8: 11873 * 11874 * 5.7.2 When a SCSI initiator port aborts its own tasks 11875 * 11876 * When a SCSI initiator port causes its own task(s) to be aborted, no 11877 * notification that the task(s) have been aborted shall be returned to 11878 * the SCSI initiator port other than the completion response for the 11879 * command or task management function action that caused the task(s) to 11880 * be aborted and notification(s) associated with related effects of the 11881 * action (e.g., a reset unit attention condition). 11882 * 11883 * XXX KDM for now, we're setting unit attention for all initiators. 11884 */ 11885 static void 11886 ctl_do_lun_reset(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua_type) 11887 { 11888 struct ctl_io_hdr *xioh; 11889 int i; 11890 11891 mtx_lock(&lun->lun_lock); 11892 /* Abort tasks. */ 11893 LIST_FOREACH(xioh, &lun->ooa_queue, ooa_links) { 11894 xioh->flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11895 ctl_try_unblock_io(lun, (union ctl_io *)xioh, FALSE); 11896 } 11897 /* Clear CA. */ 11898 for (i = 0; i < ctl_max_ports; i++) { 11899 free(lun->pending_sense[i], M_CTL); 11900 lun->pending_sense[i] = NULL; 11901 } 11902 /* Clear reservation. */ 11903 lun->flags &= ~CTL_LUN_RESERVED; 11904 /* Clear prevent media removal. */ 11905 if (lun->prevent) { 11906 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11907 ctl_clear_mask(lun->prevent, i); 11908 lun->prevent_count = 0; 11909 } 11910 /* Clear TPC status */ 11911 ctl_tpc_lun_clear(lun, -1); 11912 /* Establish UA. */ 11913 #if 0 11914 ctl_est_ua_all(lun, initidx, ua_type); 11915 #else 11916 ctl_est_ua_all(lun, -1, ua_type); 11917 #endif 11918 mtx_unlock(&lun->lun_lock); 11919 } 11920 11921 static int 11922 ctl_lun_reset(union ctl_io *io) 11923 { 11924 struct ctl_softc *softc = CTL_SOFTC(io); 11925 struct ctl_lun *lun; 11926 uint32_t targ_lun, initidx; 11927 11928 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11929 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11930 mtx_lock(&softc->ctl_lock); 11931 if (targ_lun >= ctl_max_luns || 11932 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11933 mtx_unlock(&softc->ctl_lock); 11934 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11935 return (1); 11936 } 11937 ctl_do_lun_reset(lun, initidx, CTL_UA_LUN_RESET); 11938 mtx_unlock(&softc->ctl_lock); 11939 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11940 11941 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0) { 11942 union ctl_ha_msg msg_info; 11943 11944 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11945 msg_info.hdr.nexus = io->io_hdr.nexus; 11946 msg_info.task.task_action = CTL_TASK_LUN_RESET; 11947 msg_info.hdr.original_sc = NULL; 11948 msg_info.hdr.serializing_sc = NULL; 11949 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11950 sizeof(msg_info.task), M_WAITOK); 11951 } 11952 return (0); 11953 } 11954 11955 static void 11956 ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11957 int other_sc) 11958 { 11959 struct ctl_io_hdr *xioh; 11960 11961 mtx_assert(&lun->lun_lock, MA_OWNED); 11962 11963 /* 11964 * Run through the OOA queue and attempt to find the given I/O. 11965 * The target port, initiator ID, tag type and tag number have to 11966 * match the values that we got from the initiator. If we have an 11967 * untagged command to abort, simply abort the first untagged command 11968 * we come to. We only allow one untagged command at a time of course. 11969 */ 11970 LIST_FOREACH(xioh, &lun->ooa_queue, ooa_links) { 11971 union ctl_io *xio = (union ctl_io *)xioh; 11972 if ((targ_port == UINT32_MAX || 11973 targ_port == xioh->nexus.targ_port) && 11974 (init_id == UINT32_MAX || 11975 init_id == xioh->nexus.initid)) { 11976 if (targ_port != xioh->nexus.targ_port || 11977 init_id != xioh->nexus.initid) 11978 xioh->flags |= CTL_FLAG_ABORT_STATUS; 11979 xioh->flags |= CTL_FLAG_ABORT; 11980 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11981 union ctl_ha_msg msg_info; 11982 11983 msg_info.hdr.nexus = xioh->nexus; 11984 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11985 msg_info.task.tag_num = xio->scsiio.tag_num; 11986 msg_info.task.tag_type = xio->scsiio.tag_type; 11987 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11988 msg_info.hdr.original_sc = NULL; 11989 msg_info.hdr.serializing_sc = NULL; 11990 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11991 sizeof(msg_info.task), M_NOWAIT); 11992 } 11993 ctl_try_unblock_io(lun, xio, FALSE); 11994 } 11995 } 11996 } 11997 11998 static int 11999 ctl_abort_task_set(union ctl_io *io) 12000 { 12001 struct ctl_softc *softc = CTL_SOFTC(io); 12002 struct ctl_lun *lun; 12003 uint32_t targ_lun; 12004 12005 /* 12006 * Look up the LUN. 12007 */ 12008 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12009 mtx_lock(&softc->ctl_lock); 12010 if (targ_lun >= ctl_max_luns || 12011 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12012 mtx_unlock(&softc->ctl_lock); 12013 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12014 return (1); 12015 } 12016 12017 mtx_lock(&lun->lun_lock); 12018 mtx_unlock(&softc->ctl_lock); 12019 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 12020 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 12021 io->io_hdr.nexus.initid, 12022 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12023 } else { /* CTL_TASK_CLEAR_TASK_SET */ 12024 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 12025 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 12026 } 12027 mtx_unlock(&lun->lun_lock); 12028 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12029 return (0); 12030 } 12031 12032 static void 12033 ctl_i_t_nexus_loss(struct ctl_softc *softc, uint32_t initidx, 12034 ctl_ua_type ua_type) 12035 { 12036 struct ctl_lun *lun; 12037 struct scsi_sense_data *ps; 12038 uint32_t p, i; 12039 12040 p = initidx / CTL_MAX_INIT_PER_PORT; 12041 i = initidx % CTL_MAX_INIT_PER_PORT; 12042 mtx_lock(&softc->ctl_lock); 12043 STAILQ_FOREACH(lun, &softc->lun_list, links) { 12044 mtx_lock(&lun->lun_lock); 12045 /* Abort tasks. */ 12046 ctl_abort_tasks_lun(lun, p, i, 1); 12047 /* Clear CA. */ 12048 ps = lun->pending_sense[p]; 12049 if (ps != NULL) 12050 ps[i].error_code = 0; 12051 /* Clear reservation. */ 12052 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == initidx)) 12053 lun->flags &= ~CTL_LUN_RESERVED; 12054 /* Clear prevent media removal. */ 12055 if (lun->prevent && ctl_is_set(lun->prevent, initidx)) { 12056 ctl_clear_mask(lun->prevent, initidx); 12057 lun->prevent_count--; 12058 } 12059 /* Clear TPC status */ 12060 ctl_tpc_lun_clear(lun, initidx); 12061 /* Establish UA. */ 12062 ctl_est_ua(lun, initidx, ua_type); 12063 mtx_unlock(&lun->lun_lock); 12064 } 12065 mtx_unlock(&softc->ctl_lock); 12066 } 12067 12068 static int 12069 ctl_i_t_nexus_reset(union ctl_io *io) 12070 { 12071 struct ctl_softc *softc = CTL_SOFTC(io); 12072 uint32_t initidx; 12073 12074 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 12075 union ctl_ha_msg msg_info; 12076 12077 msg_info.hdr.nexus = io->io_hdr.nexus; 12078 msg_info.task.task_action = CTL_TASK_I_T_NEXUS_RESET; 12079 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12080 msg_info.hdr.original_sc = NULL; 12081 msg_info.hdr.serializing_sc = NULL; 12082 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12083 sizeof(msg_info.task), M_WAITOK); 12084 } 12085 12086 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12087 ctl_i_t_nexus_loss(softc, initidx, CTL_UA_I_T_NEXUS_LOSS); 12088 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12089 return (0); 12090 } 12091 12092 static int 12093 ctl_abort_task(union ctl_io *io) 12094 { 12095 struct ctl_softc *softc = CTL_SOFTC(io); 12096 struct ctl_io_hdr *xioh; 12097 struct ctl_lun *lun; 12098 uint32_t targ_lun; 12099 12100 /* 12101 * Look up the LUN. 12102 */ 12103 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12104 mtx_lock(&softc->ctl_lock); 12105 if (targ_lun >= ctl_max_luns || 12106 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12107 mtx_unlock(&softc->ctl_lock); 12108 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12109 return (1); 12110 } 12111 12112 mtx_lock(&lun->lun_lock); 12113 mtx_unlock(&softc->ctl_lock); 12114 /* 12115 * Run through the OOA queue and attempt to find the given I/O. 12116 * The target port, initiator ID, tag type and tag number have to 12117 * match the values that we got from the initiator. If we have an 12118 * untagged command to abort, simply abort the first untagged command 12119 * we come to. We only allow one untagged command at a time of course. 12120 */ 12121 LIST_FOREACH(xioh, &lun->ooa_queue, ooa_links) { 12122 union ctl_io *xio = (union ctl_io *)xioh; 12123 if ((xioh->nexus.targ_port != io->io_hdr.nexus.targ_port) 12124 || (xioh->nexus.initid != io->io_hdr.nexus.initid) 12125 || (xioh->flags & CTL_FLAG_ABORT)) 12126 continue; 12127 12128 /* 12129 * If the abort says that the task is untagged, the 12130 * task in the queue must be untagged. Otherwise, 12131 * we just check to see whether the tag numbers 12132 * match. This is because the QLogic firmware 12133 * doesn't pass back the tag type in an abort 12134 * request. 12135 */ 12136 #if 0 12137 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12138 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12139 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 12140 #else 12141 /* 12142 * XXX KDM we've got problems with FC, because it 12143 * doesn't send down a tag type with aborts. So we 12144 * can only really go by the tag number... 12145 * This may cause problems with parallel SCSI. 12146 * Need to figure that out!! 12147 */ 12148 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12149 #endif 12150 xioh->flags |= CTL_FLAG_ABORT; 12151 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0 && 12152 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12153 union ctl_ha_msg msg_info; 12154 12155 msg_info.hdr.nexus = io->io_hdr.nexus; 12156 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12157 msg_info.task.tag_num = io->taskio.tag_num; 12158 msg_info.task.tag_type = io->taskio.tag_type; 12159 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12160 msg_info.hdr.original_sc = NULL; 12161 msg_info.hdr.serializing_sc = NULL; 12162 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12163 sizeof(msg_info.task), M_NOWAIT); 12164 } 12165 ctl_try_unblock_io(lun, xio, FALSE); 12166 } 12167 } 12168 mtx_unlock(&lun->lun_lock); 12169 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12170 return (0); 12171 } 12172 12173 static int 12174 ctl_query_task(union ctl_io *io, int task_set) 12175 { 12176 struct ctl_softc *softc = CTL_SOFTC(io); 12177 struct ctl_io_hdr *xioh; 12178 struct ctl_lun *lun; 12179 int found = 0; 12180 uint32_t targ_lun; 12181 12182 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12183 mtx_lock(&softc->ctl_lock); 12184 if (targ_lun >= ctl_max_luns || 12185 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12186 mtx_unlock(&softc->ctl_lock); 12187 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12188 return (1); 12189 } 12190 mtx_lock(&lun->lun_lock); 12191 mtx_unlock(&softc->ctl_lock); 12192 LIST_FOREACH(xioh, &lun->ooa_queue, ooa_links) { 12193 union ctl_io *xio = (union ctl_io *)xioh; 12194 if ((xioh->nexus.targ_port != io->io_hdr.nexus.targ_port) 12195 || (xioh->nexus.initid != io->io_hdr.nexus.initid) 12196 || (xioh->flags & CTL_FLAG_ABORT)) 12197 continue; 12198 12199 if (task_set || xio->scsiio.tag_num == io->taskio.tag_num) { 12200 found = 1; 12201 break; 12202 } 12203 } 12204 mtx_unlock(&lun->lun_lock); 12205 if (found) 12206 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12207 else 12208 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12209 return (0); 12210 } 12211 12212 static int 12213 ctl_query_async_event(union ctl_io *io) 12214 { 12215 struct ctl_softc *softc = CTL_SOFTC(io); 12216 struct ctl_lun *lun; 12217 ctl_ua_type ua; 12218 uint32_t targ_lun, initidx; 12219 12220 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12221 mtx_lock(&softc->ctl_lock); 12222 if (targ_lun >= ctl_max_luns || 12223 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12224 mtx_unlock(&softc->ctl_lock); 12225 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12226 return (1); 12227 } 12228 mtx_lock(&lun->lun_lock); 12229 mtx_unlock(&softc->ctl_lock); 12230 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12231 ua = ctl_build_qae(lun, initidx, io->taskio.task_resp); 12232 mtx_unlock(&lun->lun_lock); 12233 if (ua != CTL_UA_NONE) 12234 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12235 else 12236 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12237 return (0); 12238 } 12239 12240 static void 12241 ctl_run_task(union ctl_io *io) 12242 { 12243 int retval = 1; 12244 12245 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12246 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12247 ("ctl_run_task: Unextected io_type %d\n", io->io_hdr.io_type)); 12248 io->taskio.task_status = CTL_TASK_FUNCTION_NOT_SUPPORTED; 12249 bzero(io->taskio.task_resp, sizeof(io->taskio.task_resp)); 12250 switch (io->taskio.task_action) { 12251 case CTL_TASK_ABORT_TASK: 12252 retval = ctl_abort_task(io); 12253 break; 12254 case CTL_TASK_ABORT_TASK_SET: 12255 case CTL_TASK_CLEAR_TASK_SET: 12256 retval = ctl_abort_task_set(io); 12257 break; 12258 case CTL_TASK_CLEAR_ACA: 12259 break; 12260 case CTL_TASK_I_T_NEXUS_RESET: 12261 retval = ctl_i_t_nexus_reset(io); 12262 break; 12263 case CTL_TASK_LUN_RESET: 12264 retval = ctl_lun_reset(io); 12265 break; 12266 case CTL_TASK_TARGET_RESET: 12267 case CTL_TASK_BUS_RESET: 12268 retval = ctl_target_reset(io); 12269 break; 12270 case CTL_TASK_PORT_LOGIN: 12271 break; 12272 case CTL_TASK_PORT_LOGOUT: 12273 break; 12274 case CTL_TASK_QUERY_TASK: 12275 retval = ctl_query_task(io, 0); 12276 break; 12277 case CTL_TASK_QUERY_TASK_SET: 12278 retval = ctl_query_task(io, 1); 12279 break; 12280 case CTL_TASK_QUERY_ASYNC_EVENT: 12281 retval = ctl_query_async_event(io); 12282 break; 12283 default: 12284 printf("%s: got unknown task management event %d\n", 12285 __func__, io->taskio.task_action); 12286 break; 12287 } 12288 if (retval == 0) 12289 io->io_hdr.status = CTL_SUCCESS; 12290 else 12291 io->io_hdr.status = CTL_ERROR; 12292 ctl_done(io); 12293 } 12294 12295 /* 12296 * For HA operation. Handle commands that come in from the other 12297 * controller. 12298 */ 12299 static void 12300 ctl_handle_isc(union ctl_io *io) 12301 { 12302 struct ctl_softc *softc = CTL_SOFTC(io); 12303 struct ctl_lun *lun; 12304 const struct ctl_cmd_entry *entry; 12305 uint32_t targ_lun; 12306 12307 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12308 switch (io->io_hdr.msg_type) { 12309 case CTL_MSG_SERIALIZE: 12310 ctl_serialize_other_sc_cmd(&io->scsiio); 12311 break; 12312 case CTL_MSG_R2R: /* Only used in SER_ONLY mode. */ 12313 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12314 if (targ_lun >= ctl_max_luns || 12315 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12316 ctl_done(io); 12317 break; 12318 } 12319 mtx_lock(&lun->lun_lock); 12320 if (ctl_scsiio_lun_check(lun, entry, &io->scsiio) != 0) { 12321 mtx_unlock(&lun->lun_lock); 12322 ctl_done(io); 12323 break; 12324 } 12325 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12326 mtx_unlock(&lun->lun_lock); 12327 ctl_enqueue_rtr(io); 12328 break; 12329 case CTL_MSG_FINISH_IO: 12330 if (softc->ha_mode == CTL_HA_MODE_XFER) { 12331 ctl_done(io); 12332 break; 12333 } 12334 if (targ_lun >= ctl_max_luns || 12335 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12336 ctl_free_io(io); 12337 break; 12338 } 12339 mtx_lock(&lun->lun_lock); 12340 ctl_try_unblock_others(lun, io, TRUE); 12341 LIST_REMOVE(&io->io_hdr, ooa_links); 12342 mtx_unlock(&lun->lun_lock); 12343 ctl_free_io(io); 12344 break; 12345 case CTL_MSG_PERS_ACTION: 12346 ctl_hndl_per_res_out_on_other_sc(io); 12347 ctl_free_io(io); 12348 break; 12349 case CTL_MSG_BAD_JUJU: 12350 ctl_done(io); 12351 break; 12352 case CTL_MSG_DATAMOVE: /* Only used in XFER mode */ 12353 ctl_datamove_remote(io); 12354 break; 12355 case CTL_MSG_DATAMOVE_DONE: /* Only used in XFER mode */ 12356 ctl_datamove_done(io, false); 12357 break; 12358 case CTL_MSG_FAILOVER: 12359 ctl_failover_lun(io); 12360 ctl_free_io(io); 12361 break; 12362 default: 12363 printf("%s: Invalid message type %d\n", 12364 __func__, io->io_hdr.msg_type); 12365 ctl_free_io(io); 12366 break; 12367 } 12368 12369 } 12370 12371 /* 12372 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12373 * there is no match. 12374 */ 12375 static ctl_lun_error_pattern 12376 ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12377 { 12378 const struct ctl_cmd_entry *entry; 12379 ctl_lun_error_pattern filtered_pattern, pattern; 12380 12381 pattern = desc->error_pattern; 12382 12383 /* 12384 * XXX KDM we need more data passed into this function to match a 12385 * custom pattern, and we actually need to implement custom pattern 12386 * matching. 12387 */ 12388 if (pattern & CTL_LUN_PAT_CMD) 12389 return (CTL_LUN_PAT_CMD); 12390 12391 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12392 return (CTL_LUN_PAT_ANY); 12393 12394 entry = ctl_get_cmd_entry(ctsio, NULL); 12395 12396 filtered_pattern = entry->pattern & pattern; 12397 12398 /* 12399 * If the user requested specific flags in the pattern (e.g. 12400 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12401 * flags. 12402 * 12403 * If the user did not specify any flags, it doesn't matter whether 12404 * or not the command supports the flags. 12405 */ 12406 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12407 (pattern & ~CTL_LUN_PAT_MASK)) 12408 return (CTL_LUN_PAT_NONE); 12409 12410 /* 12411 * If the user asked for a range check, see if the requested LBA 12412 * range overlaps with this command's LBA range. 12413 */ 12414 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12415 uint64_t lba1; 12416 uint64_t len1; 12417 ctl_action action; 12418 int retval; 12419 12420 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12421 if (retval != 0) 12422 return (CTL_LUN_PAT_NONE); 12423 12424 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12425 desc->lba_range.len, FALSE); 12426 /* 12427 * A "pass" means that the LBA ranges don't overlap, so 12428 * this doesn't match the user's range criteria. 12429 */ 12430 if (action == CTL_ACTION_PASS) 12431 return (CTL_LUN_PAT_NONE); 12432 } 12433 12434 return (filtered_pattern); 12435 } 12436 12437 static void 12438 ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12439 { 12440 struct ctl_error_desc *desc, *desc2; 12441 12442 mtx_assert(&lun->lun_lock, MA_OWNED); 12443 12444 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12445 ctl_lun_error_pattern pattern; 12446 /* 12447 * Check to see whether this particular command matches 12448 * the pattern in the descriptor. 12449 */ 12450 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12451 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12452 continue; 12453 12454 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12455 case CTL_LUN_INJ_ABORTED: 12456 ctl_set_aborted(&io->scsiio); 12457 break; 12458 case CTL_LUN_INJ_MEDIUM_ERR: 12459 ctl_set_medium_error(&io->scsiio, 12460 (io->io_hdr.flags & CTL_FLAG_DATA_MASK) != 12461 CTL_FLAG_DATA_OUT); 12462 break; 12463 case CTL_LUN_INJ_UA: 12464 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12465 * OCCURRED */ 12466 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12467 break; 12468 case CTL_LUN_INJ_CUSTOM: 12469 /* 12470 * We're assuming the user knows what he is doing. 12471 * Just copy the sense information without doing 12472 * checks. 12473 */ 12474 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12475 MIN(sizeof(desc->custom_sense), 12476 sizeof(io->scsiio.sense_data))); 12477 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12478 io->scsiio.sense_len = SSD_FULL_SIZE; 12479 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12480 break; 12481 case CTL_LUN_INJ_NONE: 12482 default: 12483 /* 12484 * If this is an error injection type we don't know 12485 * about, clear the continuous flag (if it is set) 12486 * so it will get deleted below. 12487 */ 12488 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12489 break; 12490 } 12491 /* 12492 * By default, each error injection action is a one-shot 12493 */ 12494 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12495 continue; 12496 12497 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12498 12499 free(desc, M_CTL); 12500 } 12501 } 12502 12503 #ifdef CTL_IO_DELAY 12504 static void 12505 ctl_datamove_timer_wakeup(void *arg) 12506 { 12507 union ctl_io *io; 12508 12509 io = (union ctl_io *)arg; 12510 12511 ctl_datamove(io); 12512 } 12513 #endif /* CTL_IO_DELAY */ 12514 12515 static void 12516 ctl_datamove_done_process(union ctl_io *io) 12517 { 12518 #ifdef CTL_TIME_IO 12519 struct bintime cur_bt; 12520 #endif 12521 12522 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 12523 ("%s: unexpected I/O type %x", __func__, io->io_hdr.io_type)); 12524 12525 #ifdef CTL_TIME_IO 12526 getbinuptime(&cur_bt); 12527 bintime_sub(&cur_bt, &io->io_hdr.dma_start_bt); 12528 bintime_add(&io->io_hdr.dma_bt, &cur_bt); 12529 #endif 12530 io->io_hdr.num_dmas++; 12531 12532 if ((io->io_hdr.port_status != 0) && 12533 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 12534 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 12535 ctl_set_internal_failure(&io->scsiio, /*sks_valid*/ 1, 12536 /*retry_count*/ io->io_hdr.port_status); 12537 } else if (io->scsiio.kern_data_resid != 0 && 12538 (io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT && 12539 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 12540 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 12541 ctl_set_invalid_field_ciu(&io->scsiio); 12542 } else if (ctl_debug & CTL_DEBUG_CDB_DATA) 12543 ctl_data_print(io); 12544 } 12545 12546 void 12547 ctl_datamove_done(union ctl_io *io, bool samethr) 12548 { 12549 12550 ctl_datamove_done_process(io); 12551 io->scsiio.be_move_done(io, samethr); 12552 } 12553 12554 void 12555 ctl_datamove(union ctl_io *io) 12556 { 12557 void (*fe_datamove)(union ctl_io *io); 12558 12559 mtx_assert(&((struct ctl_softc *)CTL_SOFTC(io))->ctl_lock, MA_NOTOWNED); 12560 12561 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12562 12563 /* No data transferred yet. Frontend must update this when done. */ 12564 io->scsiio.kern_data_resid = io->scsiio.kern_data_len; 12565 12566 #ifdef CTL_TIME_IO 12567 getbinuptime(&io->io_hdr.dma_start_bt); 12568 #endif /* CTL_TIME_IO */ 12569 12570 #ifdef CTL_IO_DELAY 12571 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12572 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12573 } else { 12574 struct ctl_lun *lun; 12575 12576 lun = CTL_LUN(io); 12577 if ((lun != NULL) 12578 && (lun->delay_info.datamove_delay > 0)) { 12579 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 12580 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12581 callout_reset(&io->io_hdr.delay_callout, 12582 lun->delay_info.datamove_delay * hz, 12583 ctl_datamove_timer_wakeup, io); 12584 if (lun->delay_info.datamove_type == 12585 CTL_DELAY_TYPE_ONESHOT) 12586 lun->delay_info.datamove_delay = 0; 12587 return; 12588 } 12589 } 12590 #endif 12591 12592 /* 12593 * This command has been aborted. Set the port status, so we fail 12594 * the data move. 12595 */ 12596 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12597 printf("ctl_datamove: tag 0x%04x on (%u:%u:%u) aborted\n", 12598 io->scsiio.tag_num, io->io_hdr.nexus.initid, 12599 io->io_hdr.nexus.targ_port, 12600 io->io_hdr.nexus.targ_lun); 12601 io->io_hdr.port_status = 31337; 12602 ctl_datamove_done_process(io); 12603 io->scsiio.be_move_done(io, true); 12604 return; 12605 } 12606 12607 /* Don't confuse frontend with zero length data move. */ 12608 if (io->scsiio.kern_data_len == 0) { 12609 ctl_datamove_done_process(io); 12610 io->scsiio.be_move_done(io, true); 12611 return; 12612 } 12613 12614 fe_datamove = CTL_PORT(io)->fe_datamove; 12615 fe_datamove(io); 12616 } 12617 12618 static void 12619 ctl_send_datamove_done(union ctl_io *io, int have_lock) 12620 { 12621 union ctl_ha_msg msg; 12622 #ifdef CTL_TIME_IO 12623 struct bintime cur_bt; 12624 #endif 12625 12626 memset(&msg, 0, sizeof(msg)); 12627 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12628 msg.hdr.original_sc = io; 12629 msg.hdr.serializing_sc = io->io_hdr.remote_io; 12630 msg.hdr.nexus = io->io_hdr.nexus; 12631 msg.hdr.status = io->io_hdr.status; 12632 msg.scsi.kern_data_resid = io->scsiio.kern_data_resid; 12633 msg.scsi.tag_num = io->scsiio.tag_num; 12634 msg.scsi.tag_type = io->scsiio.tag_type; 12635 msg.scsi.scsi_status = io->scsiio.scsi_status; 12636 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12637 io->scsiio.sense_len); 12638 msg.scsi.sense_len = io->scsiio.sense_len; 12639 msg.scsi.port_status = io->io_hdr.port_status; 12640 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12641 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12642 ctl_failover_io(io, /*have_lock*/ have_lock); 12643 return; 12644 } 12645 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12646 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 12647 msg.scsi.sense_len, M_WAITOK); 12648 12649 #ifdef CTL_TIME_IO 12650 getbinuptime(&cur_bt); 12651 bintime_sub(&cur_bt, &io->io_hdr.dma_start_bt); 12652 bintime_add(&io->io_hdr.dma_bt, &cur_bt); 12653 #endif 12654 io->io_hdr.num_dmas++; 12655 } 12656 12657 /* 12658 * The DMA to the remote side is done, now we need to tell the other side 12659 * we're done so it can continue with its data movement. 12660 */ 12661 static void 12662 ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12663 { 12664 union ctl_io *io; 12665 uint32_t i; 12666 12667 io = rq->context; 12668 12669 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12670 printf("%s: ISC DMA write failed with error %d", __func__, 12671 rq->ret); 12672 ctl_set_internal_failure(&io->scsiio, 12673 /*sks_valid*/ 1, 12674 /*retry_count*/ rq->ret); 12675 } 12676 12677 ctl_dt_req_free(rq); 12678 12679 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12680 free(CTL_LSGLT(io)[i].addr, M_CTL); 12681 free(CTL_RSGL(io), M_CTL); 12682 CTL_RSGL(io) = NULL; 12683 CTL_LSGL(io) = NULL; 12684 12685 /* 12686 * The data is in local and remote memory, so now we need to send 12687 * status (good or back) back to the other side. 12688 */ 12689 ctl_send_datamove_done(io, /*have_lock*/ 0); 12690 } 12691 12692 /* 12693 * We've moved the data from the host/controller into local memory. Now we 12694 * need to push it over to the remote controller's memory. 12695 */ 12696 static int 12697 ctl_datamove_remote_dm_write_cb(union ctl_io *io, bool samethr) 12698 { 12699 int retval; 12700 12701 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12702 ctl_datamove_remote_write_cb); 12703 return (retval); 12704 } 12705 12706 static void 12707 ctl_datamove_remote_write(union ctl_io *io) 12708 { 12709 int retval; 12710 void (*fe_datamove)(union ctl_io *io); 12711 12712 /* 12713 * - Get the data from the host/HBA into local memory. 12714 * - DMA memory from the local controller to the remote controller. 12715 * - Send status back to the remote controller. 12716 */ 12717 12718 retval = ctl_datamove_remote_sgl_setup(io); 12719 if (retval != 0) 12720 return; 12721 12722 /* Switch the pointer over so the FETD knows what to do */ 12723 io->scsiio.kern_data_ptr = (uint8_t *)CTL_LSGL(io); 12724 12725 /* 12726 * Use a custom move done callback, since we need to send completion 12727 * back to the other controller, not to the backend on this side. 12728 */ 12729 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12730 12731 fe_datamove = CTL_PORT(io)->fe_datamove; 12732 fe_datamove(io); 12733 } 12734 12735 static int 12736 ctl_datamove_remote_dm_read_cb(union ctl_io *io, bool samethr) 12737 { 12738 uint32_t i; 12739 12740 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12741 free(CTL_LSGLT(io)[i].addr, M_CTL); 12742 free(CTL_RSGL(io), M_CTL); 12743 CTL_RSGL(io) = NULL; 12744 CTL_LSGL(io) = NULL; 12745 12746 /* 12747 * The read is done, now we need to send status (good or bad) back 12748 * to the other side. 12749 */ 12750 ctl_send_datamove_done(io, /*have_lock*/ 0); 12751 12752 return (0); 12753 } 12754 12755 static void 12756 ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12757 { 12758 union ctl_io *io; 12759 void (*fe_datamove)(union ctl_io *io); 12760 12761 io = rq->context; 12762 12763 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12764 printf("%s: ISC DMA read failed with error %d\n", __func__, 12765 rq->ret); 12766 ctl_set_internal_failure(&io->scsiio, 12767 /*sks_valid*/ 1, 12768 /*retry_count*/ rq->ret); 12769 } 12770 12771 ctl_dt_req_free(rq); 12772 12773 /* Switch the pointer over so the FETD knows what to do */ 12774 io->scsiio.kern_data_ptr = (uint8_t *)CTL_LSGL(io); 12775 12776 /* 12777 * Use a custom move done callback, since we need to send completion 12778 * back to the other controller, not to the backend on this side. 12779 */ 12780 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12781 12782 /* XXX KDM add checks like the ones in ctl_datamove? */ 12783 12784 fe_datamove = CTL_PORT(io)->fe_datamove; 12785 fe_datamove(io); 12786 } 12787 12788 static int 12789 ctl_datamove_remote_sgl_setup(union ctl_io *io) 12790 { 12791 struct ctl_sg_entry *local_sglist; 12792 uint32_t len_to_go; 12793 int retval; 12794 int i; 12795 12796 retval = 0; 12797 local_sglist = CTL_LSGL(io); 12798 len_to_go = io->scsiio.kern_data_len; 12799 12800 /* 12801 * The difficult thing here is that the size of the various 12802 * S/G segments may be different than the size from the 12803 * remote controller. That'll make it harder when DMAing 12804 * the data back to the other side. 12805 */ 12806 for (i = 0; len_to_go > 0; i++) { 12807 local_sglist[i].len = MIN(len_to_go, CTL_HA_DATAMOVE_SEGMENT); 12808 local_sglist[i].addr = 12809 malloc(local_sglist[i].len, M_CTL, M_WAITOK); 12810 12811 len_to_go -= local_sglist[i].len; 12812 } 12813 /* 12814 * Reset the number of S/G entries accordingly. The original 12815 * number of S/G entries is available in rem_sg_entries. 12816 */ 12817 io->scsiio.kern_sg_entries = i; 12818 12819 return (retval); 12820 } 12821 12822 static int 12823 ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 12824 ctl_ha_dt_cb callback) 12825 { 12826 struct ctl_ha_dt_req *rq; 12827 struct ctl_sg_entry *remote_sglist, *local_sglist; 12828 uint32_t local_used, remote_used, total_used; 12829 int i, j, isc_ret; 12830 12831 rq = ctl_dt_req_alloc(); 12832 12833 /* 12834 * If we failed to allocate the request, and if the DMA didn't fail 12835 * anyway, set busy status. This is just a resource allocation 12836 * failure. 12837 */ 12838 if ((rq == NULL) 12839 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12840 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) 12841 ctl_set_busy(&io->scsiio); 12842 12843 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12844 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) { 12845 if (rq != NULL) 12846 ctl_dt_req_free(rq); 12847 12848 /* 12849 * The data move failed. We need to return status back 12850 * to the other controller. No point in trying to DMA 12851 * data to the remote controller. 12852 */ 12853 12854 ctl_send_datamove_done(io, /*have_lock*/ 0); 12855 12856 return (1); 12857 } 12858 12859 local_sglist = CTL_LSGL(io); 12860 remote_sglist = CTL_RSGL(io); 12861 local_used = 0; 12862 remote_used = 0; 12863 total_used = 0; 12864 12865 /* 12866 * Pull/push the data over the wire from/to the other controller. 12867 * This takes into account the possibility that the local and 12868 * remote sglists may not be identical in terms of the size of 12869 * the elements and the number of elements. 12870 * 12871 * One fundamental assumption here is that the length allocated for 12872 * both the local and remote sglists is identical. Otherwise, we've 12873 * essentially got a coding error of some sort. 12874 */ 12875 isc_ret = CTL_HA_STATUS_SUCCESS; 12876 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 12877 uint32_t cur_len; 12878 uint8_t *tmp_ptr; 12879 12880 rq->command = command; 12881 rq->context = io; 12882 12883 /* 12884 * Both pointers should be aligned. But it is possible 12885 * that the allocation length is not. They should both 12886 * also have enough slack left over at the end, though, 12887 * to round up to the next 8 byte boundary. 12888 */ 12889 cur_len = MIN(local_sglist[i].len - local_used, 12890 remote_sglist[j].len - remote_used); 12891 rq->size = cur_len; 12892 12893 tmp_ptr = (uint8_t *)local_sglist[i].addr; 12894 tmp_ptr += local_used; 12895 12896 #if 0 12897 /* Use physical addresses when talking to ISC hardware */ 12898 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 12899 /* XXX KDM use busdma */ 12900 rq->local = vtophys(tmp_ptr); 12901 } else 12902 rq->local = tmp_ptr; 12903 #else 12904 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 12905 ("HA does not support BUS_ADDR")); 12906 rq->local = tmp_ptr; 12907 #endif 12908 12909 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 12910 tmp_ptr += remote_used; 12911 rq->remote = tmp_ptr; 12912 12913 rq->callback = NULL; 12914 12915 local_used += cur_len; 12916 if (local_used >= local_sglist[i].len) { 12917 i++; 12918 local_used = 0; 12919 } 12920 12921 remote_used += cur_len; 12922 if (remote_used >= remote_sglist[j].len) { 12923 j++; 12924 remote_used = 0; 12925 } 12926 total_used += cur_len; 12927 12928 if (total_used >= io->scsiio.kern_data_len) 12929 rq->callback = callback; 12930 12931 isc_ret = ctl_dt_single(rq); 12932 if (isc_ret > CTL_HA_STATUS_SUCCESS) 12933 break; 12934 } 12935 if (isc_ret != CTL_HA_STATUS_WAIT) { 12936 rq->ret = isc_ret; 12937 callback(rq); 12938 } 12939 12940 return (0); 12941 } 12942 12943 static void 12944 ctl_datamove_remote_read(union ctl_io *io) 12945 { 12946 int retval; 12947 uint32_t i; 12948 12949 /* 12950 * This will send an error to the other controller in the case of a 12951 * failure. 12952 */ 12953 retval = ctl_datamove_remote_sgl_setup(io); 12954 if (retval != 0) 12955 return; 12956 12957 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 12958 ctl_datamove_remote_read_cb); 12959 if (retval != 0) { 12960 /* 12961 * Make sure we free memory if there was an error.. The 12962 * ctl_datamove_remote_xfer() function will send the 12963 * datamove done message, or call the callback with an 12964 * error if there is a problem. 12965 */ 12966 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12967 free(CTL_LSGLT(io)[i].addr, M_CTL); 12968 free(CTL_RSGL(io), M_CTL); 12969 CTL_RSGL(io) = NULL; 12970 CTL_LSGL(io) = NULL; 12971 } 12972 } 12973 12974 /* 12975 * Process a datamove request from the other controller. This is used for 12976 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 12977 * first. Once that is complete, the data gets DMAed into the remote 12978 * controller's memory. For reads, we DMA from the remote controller's 12979 * memory into our memory first, and then move it out to the FETD. 12980 */ 12981 static void 12982 ctl_datamove_remote(union ctl_io *io) 12983 { 12984 12985 mtx_assert(&((struct ctl_softc *)CTL_SOFTC(io))->ctl_lock, MA_NOTOWNED); 12986 12987 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12988 ctl_failover_io(io, /*have_lock*/ 0); 12989 return; 12990 } 12991 12992 /* 12993 * Note that we look for an aborted I/O here, but don't do some of 12994 * the other checks that ctl_datamove() normally does. 12995 * We don't need to run the datamove delay code, since that should 12996 * have been done if need be on the other controller. 12997 */ 12998 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12999 printf("%s: tag 0x%04x on (%u:%u:%u) aborted\n", __func__, 13000 io->scsiio.tag_num, io->io_hdr.nexus.initid, 13001 io->io_hdr.nexus.targ_port, 13002 io->io_hdr.nexus.targ_lun); 13003 io->io_hdr.port_status = 31338; 13004 ctl_send_datamove_done(io, /*have_lock*/ 0); 13005 return; 13006 } 13007 13008 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 13009 ctl_datamove_remote_write(io); 13010 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 13011 ctl_datamove_remote_read(io); 13012 else { 13013 io->io_hdr.port_status = 31339; 13014 ctl_send_datamove_done(io, /*have_lock*/ 0); 13015 } 13016 } 13017 13018 static void 13019 ctl_process_done(union ctl_io *io) 13020 { 13021 struct ctl_softc *softc = CTL_SOFTC(io); 13022 struct ctl_port *port = CTL_PORT(io); 13023 struct ctl_lun *lun = CTL_LUN(io); 13024 void (*fe_done)(union ctl_io *io); 13025 union ctl_ha_msg msg; 13026 13027 CTL_DEBUG_PRINT(("ctl_process_done\n")); 13028 fe_done = port->fe_done; 13029 13030 #ifdef CTL_TIME_IO 13031 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 13032 char str[256]; 13033 char path_str[64]; 13034 struct sbuf sb; 13035 13036 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 13037 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 13038 13039 sbuf_cat(&sb, path_str); 13040 switch (io->io_hdr.io_type) { 13041 case CTL_IO_SCSI: 13042 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 13043 sbuf_printf(&sb, "\n"); 13044 sbuf_cat(&sb, path_str); 13045 sbuf_printf(&sb, "Tag: 0x%04x/%d, Prio: %d\n", 13046 io->scsiio.tag_num, io->scsiio.tag_type, 13047 io->scsiio.priority); 13048 break; 13049 case CTL_IO_TASK: 13050 sbuf_printf(&sb, "Task Action: %d Tag: 0x%04x/%d\n", 13051 io->taskio.task_action, 13052 io->taskio.tag_num, io->taskio.tag_type); 13053 break; 13054 default: 13055 panic("%s: Invalid CTL I/O type %d\n", 13056 __func__, io->io_hdr.io_type); 13057 } 13058 sbuf_cat(&sb, path_str); 13059 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 13060 (intmax_t)time_uptime - io->io_hdr.start_time); 13061 sbuf_finish(&sb); 13062 printf("%s", sbuf_data(&sb)); 13063 } 13064 #endif /* CTL_TIME_IO */ 13065 13066 switch (io->io_hdr.io_type) { 13067 case CTL_IO_SCSI: 13068 break; 13069 case CTL_IO_TASK: 13070 if (ctl_debug & CTL_DEBUG_INFO) 13071 ctl_io_error_print(io, NULL); 13072 fe_done(io); 13073 return; 13074 default: 13075 panic("%s: Invalid CTL I/O type %d\n", 13076 __func__, io->io_hdr.io_type); 13077 } 13078 13079 if (lun == NULL) { 13080 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13081 io->io_hdr.nexus.targ_mapped_lun)); 13082 goto bailout; 13083 } 13084 13085 mtx_lock(&lun->lun_lock); 13086 13087 /* 13088 * Check to see if we have any informational exception and status 13089 * of this command can be modified to report it in form of either 13090 * RECOVERED ERROR or NO SENSE, depending on MRIE mode page field. 13091 */ 13092 if (lun->ie_reported == 0 && lun->ie_asc != 0 && 13093 io->io_hdr.status == CTL_SUCCESS && 13094 (io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0) { 13095 uint8_t mrie = lun->MODE_IE.mrie; 13096 uint8_t per = ((lun->MODE_RWER.byte3 & SMS_RWER_PER) || 13097 (lun->MODE_VER.byte3 & SMS_VER_PER)); 13098 if (((mrie == SIEP_MRIE_REC_COND && per) || 13099 mrie == SIEP_MRIE_REC_UNCOND || 13100 mrie == SIEP_MRIE_NO_SENSE) && 13101 (ctl_get_cmd_entry(&io->scsiio, NULL)->flags & 13102 CTL_CMD_FLAG_NO_SENSE) == 0) { 13103 ctl_set_sense(&io->scsiio, 13104 /*current_error*/ 1, 13105 /*sense_key*/ (mrie == SIEP_MRIE_NO_SENSE) ? 13106 SSD_KEY_NO_SENSE : SSD_KEY_RECOVERED_ERROR, 13107 /*asc*/ lun->ie_asc, 13108 /*ascq*/ lun->ie_ascq, 13109 SSD_ELEM_NONE); 13110 lun->ie_reported = 1; 13111 } 13112 } else if (lun->ie_reported < 0) 13113 lun->ie_reported = 0; 13114 13115 /* 13116 * Check to see if we have any errors to inject here. We only 13117 * inject errors for commands that don't already have errors set. 13118 */ 13119 if (!STAILQ_EMPTY(&lun->error_list) && 13120 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 13121 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 13122 ctl_inject_error(lun, io); 13123 13124 /* 13125 * XXX KDM how do we treat commands that aren't completed 13126 * successfully? 13127 * 13128 * XXX KDM should we also track I/O latency? 13129 */ 13130 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13131 io->io_hdr.io_type == CTL_IO_SCSI) { 13132 int type; 13133 #ifdef CTL_TIME_IO 13134 struct bintime bt; 13135 13136 getbinuptime(&bt); 13137 bintime_sub(&bt, &io->io_hdr.start_bt); 13138 #endif 13139 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13140 CTL_FLAG_DATA_IN) 13141 type = CTL_STATS_READ; 13142 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13143 CTL_FLAG_DATA_OUT) 13144 type = CTL_STATS_WRITE; 13145 else 13146 type = CTL_STATS_NO_IO; 13147 13148 lun->stats.bytes[type] += io->scsiio.kern_total_len; 13149 lun->stats.operations[type] ++; 13150 lun->stats.dmas[type] += io->io_hdr.num_dmas; 13151 #ifdef CTL_TIME_IO 13152 bintime_add(&lun->stats.dma_time[type], &io->io_hdr.dma_bt); 13153 bintime_add(&lun->stats.time[type], &bt); 13154 #endif 13155 13156 mtx_lock(&port->port_lock); 13157 port->stats.bytes[type] += io->scsiio.kern_total_len; 13158 port->stats.operations[type] ++; 13159 port->stats.dmas[type] += io->io_hdr.num_dmas; 13160 #ifdef CTL_TIME_IO 13161 bintime_add(&port->stats.dma_time[type], &io->io_hdr.dma_bt); 13162 bintime_add(&port->stats.time[type], &bt); 13163 #endif 13164 mtx_unlock(&port->port_lock); 13165 } 13166 13167 /* 13168 * Run through the blocked queue of this I/O and see if anything 13169 * can be unblocked, now that this I/O is done and will be removed. 13170 * We need to do it before removal to have OOA position to start. 13171 */ 13172 ctl_try_unblock_others(lun, io, TRUE); 13173 13174 /* 13175 * Remove this from the OOA queue. 13176 */ 13177 LIST_REMOVE(&io->io_hdr, ooa_links); 13178 #ifdef CTL_TIME_IO 13179 if (LIST_EMPTY(&lun->ooa_queue)) 13180 lun->last_busy = getsbinuptime(); 13181 #endif 13182 13183 /* 13184 * If the LUN has been invalidated, free it if there is nothing 13185 * left on its OOA queue. 13186 */ 13187 if ((lun->flags & CTL_LUN_INVALID) 13188 && LIST_EMPTY(&lun->ooa_queue)) { 13189 mtx_unlock(&lun->lun_lock); 13190 ctl_free_lun(lun); 13191 } else 13192 mtx_unlock(&lun->lun_lock); 13193 13194 bailout: 13195 13196 /* 13197 * If this command has been aborted, make sure we set the status 13198 * properly. The FETD is responsible for freeing the I/O and doing 13199 * whatever it needs to do to clean up its state. 13200 */ 13201 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13202 ctl_set_task_aborted(&io->scsiio); 13203 13204 /* 13205 * If enabled, print command error status. 13206 */ 13207 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS && 13208 (ctl_debug & CTL_DEBUG_INFO) != 0) 13209 ctl_io_error_print(io, NULL); 13210 13211 /* 13212 * Tell the FETD or the other shelf controller we're done with this 13213 * command. Note that only SCSI commands get to this point. Task 13214 * management commands are completed above. 13215 */ 13216 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 13217 (io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC)) { 13218 memset(&msg, 0, sizeof(msg)); 13219 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13220 msg.hdr.serializing_sc = io->io_hdr.remote_io; 13221 msg.hdr.nexus = io->io_hdr.nexus; 13222 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13223 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data), 13224 M_WAITOK); 13225 } 13226 13227 fe_done(io); 13228 } 13229 13230 /* 13231 * Front end should call this if it doesn't do autosense. When the request 13232 * sense comes back in from the initiator, we'll dequeue this and send it. 13233 */ 13234 int 13235 ctl_queue_sense(union ctl_io *io) 13236 { 13237 struct ctl_softc *softc = CTL_SOFTC(io); 13238 struct ctl_port *port = CTL_PORT(io); 13239 struct ctl_lun *lun; 13240 struct scsi_sense_data *ps; 13241 uint32_t initidx, p, targ_lun; 13242 13243 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13244 13245 targ_lun = ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13246 13247 /* 13248 * LUN lookup will likely move to the ctl_work_thread() once we 13249 * have our new queueing infrastructure (that doesn't put things on 13250 * a per-LUN queue initially). That is so that we can handle 13251 * things like an INQUIRY to a LUN that we don't have enabled. We 13252 * can't deal with that right now. 13253 * If we don't have a LUN for this, just toss the sense information. 13254 */ 13255 mtx_lock(&softc->ctl_lock); 13256 if (targ_lun >= ctl_max_luns || 13257 (lun = softc->ctl_luns[targ_lun]) == NULL) { 13258 mtx_unlock(&softc->ctl_lock); 13259 goto bailout; 13260 } 13261 mtx_lock(&lun->lun_lock); 13262 mtx_unlock(&softc->ctl_lock); 13263 13264 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13265 p = initidx / CTL_MAX_INIT_PER_PORT; 13266 if (lun->pending_sense[p] == NULL) { 13267 lun->pending_sense[p] = malloc(sizeof(*ps) * CTL_MAX_INIT_PER_PORT, 13268 M_CTL, M_NOWAIT | M_ZERO); 13269 } 13270 if ((ps = lun->pending_sense[p]) != NULL) { 13271 ps += initidx % CTL_MAX_INIT_PER_PORT; 13272 memset(ps, 0, sizeof(*ps)); 13273 memcpy(ps, &io->scsiio.sense_data, io->scsiio.sense_len); 13274 } 13275 mtx_unlock(&lun->lun_lock); 13276 13277 bailout: 13278 ctl_free_io(io); 13279 return (CTL_RETVAL_COMPLETE); 13280 } 13281 13282 /* 13283 * Primary command inlet from frontend ports. All SCSI and task I/O 13284 * requests must go through this function. 13285 */ 13286 int 13287 ctl_queue(union ctl_io *io) 13288 { 13289 struct ctl_port *port = CTL_PORT(io); 13290 13291 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13292 13293 #ifdef CTL_TIME_IO 13294 io->io_hdr.start_time = time_uptime; 13295 getbinuptime(&io->io_hdr.start_bt); 13296 #endif /* CTL_TIME_IO */ 13297 13298 /* Map FE-specific LUN ID into global one. */ 13299 io->io_hdr.nexus.targ_mapped_lun = 13300 ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13301 13302 switch (io->io_hdr.io_type) { 13303 case CTL_IO_SCSI: 13304 case CTL_IO_TASK: 13305 if (ctl_debug & CTL_DEBUG_CDB) 13306 ctl_io_print(io); 13307 ctl_enqueue_incoming(io); 13308 break; 13309 default: 13310 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13311 return (EINVAL); 13312 } 13313 13314 return (CTL_RETVAL_COMPLETE); 13315 } 13316 13317 int 13318 ctl_run(union ctl_io *io) 13319 { 13320 struct ctl_port *port = CTL_PORT(io); 13321 13322 CTL_DEBUG_PRINT(("ctl_run cdb[0]=%02X\n", io->scsiio.cdb[0])); 13323 13324 #ifdef CTL_TIME_IO 13325 io->io_hdr.start_time = time_uptime; 13326 getbinuptime(&io->io_hdr.start_bt); 13327 #endif /* CTL_TIME_IO */ 13328 13329 /* Map FE-specific LUN ID into global one. */ 13330 io->io_hdr.nexus.targ_mapped_lun = 13331 ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13332 13333 switch (io->io_hdr.io_type) { 13334 case CTL_IO_SCSI: 13335 if (ctl_debug & CTL_DEBUG_CDB) 13336 ctl_io_print(io); 13337 ctl_scsiio_precheck(&io->scsiio); 13338 break; 13339 case CTL_IO_TASK: 13340 if (ctl_debug & CTL_DEBUG_CDB) 13341 ctl_io_print(io); 13342 ctl_run_task(io); 13343 break; 13344 default: 13345 printf("ctl_run: unknown I/O type %d\n", io->io_hdr.io_type); 13346 return (EINVAL); 13347 } 13348 13349 return (CTL_RETVAL_COMPLETE); 13350 } 13351 13352 #ifdef CTL_IO_DELAY 13353 static void 13354 ctl_done_timer_wakeup(void *arg) 13355 { 13356 union ctl_io *io; 13357 13358 io = (union ctl_io *)arg; 13359 ctl_done(io); 13360 } 13361 #endif /* CTL_IO_DELAY */ 13362 13363 void 13364 ctl_serseq_done(union ctl_io *io) 13365 { 13366 struct ctl_lun *lun = CTL_LUN(io); 13367 13368 /* This is racy, but should not be a problem. */ 13369 if (!TAILQ_EMPTY(&io->io_hdr.blocked_queue)) { 13370 mtx_lock(&lun->lun_lock); 13371 io->io_hdr.flags |= CTL_FLAG_SERSEQ_DONE; 13372 ctl_try_unblock_others(lun, io, FALSE); 13373 mtx_unlock(&lun->lun_lock); 13374 } else 13375 io->io_hdr.flags |= CTL_FLAG_SERSEQ_DONE; 13376 } 13377 13378 void 13379 ctl_done(union ctl_io *io) 13380 { 13381 13382 /* 13383 * Enable this to catch duplicate completion issues. 13384 */ 13385 #if 0 13386 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13387 printf("%s: type %d msg %d cdb %x iptl: " 13388 "%u:%u:%u tag 0x%04x " 13389 "flag %#x status %x\n", 13390 __func__, 13391 io->io_hdr.io_type, 13392 io->io_hdr.msg_type, 13393 io->scsiio.cdb[0], 13394 io->io_hdr.nexus.initid, 13395 io->io_hdr.nexus.targ_port, 13396 io->io_hdr.nexus.targ_lun, 13397 (io->io_hdr.io_type == 13398 CTL_IO_TASK) ? 13399 io->taskio.tag_num : 13400 io->scsiio.tag_num, 13401 io->io_hdr.flags, 13402 io->io_hdr.status); 13403 } else 13404 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13405 #endif 13406 13407 /* 13408 * This is an internal copy of an I/O, and should not go through 13409 * the normal done processing logic. 13410 */ 13411 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13412 return; 13413 13414 #ifdef CTL_IO_DELAY 13415 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13416 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13417 } else { 13418 struct ctl_lun *lun = CTL_LUN(io); 13419 13420 if ((lun != NULL) 13421 && (lun->delay_info.done_delay > 0)) { 13422 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 13423 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13424 callout_reset(&io->io_hdr.delay_callout, 13425 lun->delay_info.done_delay * hz, 13426 ctl_done_timer_wakeup, io); 13427 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13428 lun->delay_info.done_delay = 0; 13429 return; 13430 } 13431 } 13432 #endif /* CTL_IO_DELAY */ 13433 13434 ctl_enqueue_done(io); 13435 } 13436 13437 static void 13438 ctl_work_thread(void *arg) 13439 { 13440 struct ctl_thread *thr = (struct ctl_thread *)arg; 13441 struct ctl_softc *softc = thr->ctl_softc; 13442 union ctl_io *io; 13443 int retval; 13444 13445 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13446 thread_lock(curthread); 13447 sched_prio(curthread, PUSER - 1); 13448 thread_unlock(curthread); 13449 13450 while (!softc->shutdown) { 13451 /* 13452 * We handle the queues in this order: 13453 * - ISC 13454 * - done queue (to free up resources, unblock other commands) 13455 * - incoming queue 13456 * - RtR queue 13457 * 13458 * If those queues are empty, we break out of the loop and 13459 * go to sleep. 13460 */ 13461 mtx_lock(&thr->queue_lock); 13462 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13463 if (io != NULL) { 13464 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13465 mtx_unlock(&thr->queue_lock); 13466 ctl_handle_isc(io); 13467 continue; 13468 } 13469 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13470 if (io != NULL) { 13471 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13472 /* clear any blocked commands, call fe_done */ 13473 mtx_unlock(&thr->queue_lock); 13474 ctl_process_done(io); 13475 continue; 13476 } 13477 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13478 if (io != NULL) { 13479 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13480 mtx_unlock(&thr->queue_lock); 13481 if (io->io_hdr.io_type == CTL_IO_TASK) 13482 ctl_run_task(io); 13483 else 13484 ctl_scsiio_precheck(&io->scsiio); 13485 continue; 13486 } 13487 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13488 if (io != NULL) { 13489 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13490 mtx_unlock(&thr->queue_lock); 13491 retval = ctl_scsiio(&io->scsiio); 13492 if (retval != CTL_RETVAL_COMPLETE) 13493 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13494 continue; 13495 } 13496 13497 /* Sleep until we have something to do. */ 13498 mtx_sleep(thr, &thr->queue_lock, PDROP, "-", 0); 13499 } 13500 thr->thread = NULL; 13501 kthread_exit(); 13502 } 13503 13504 static void 13505 ctl_thresh_thread(void *arg) 13506 { 13507 struct ctl_softc *softc = (struct ctl_softc *)arg; 13508 struct ctl_lun *lun; 13509 struct ctl_logical_block_provisioning_page *page; 13510 const char *attr; 13511 union ctl_ha_msg msg; 13512 uint64_t thres, val; 13513 int i, e, set; 13514 13515 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 13516 thread_lock(curthread); 13517 sched_prio(curthread, PUSER - 1); 13518 thread_unlock(curthread); 13519 13520 while (!softc->shutdown) { 13521 mtx_lock(&softc->ctl_lock); 13522 STAILQ_FOREACH(lun, &softc->lun_list, links) { 13523 if ((lun->flags & CTL_LUN_DISABLED) || 13524 (lun->flags & CTL_LUN_NO_MEDIA) || 13525 lun->backend->lun_attr == NULL) 13526 continue; 13527 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 13528 softc->ha_mode == CTL_HA_MODE_XFER) 13529 continue; 13530 if ((lun->MODE_RWER.byte8 & SMS_RWER_LBPERE) == 0) 13531 continue; 13532 e = 0; 13533 page = &lun->MODE_LBP; 13534 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 13535 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 13536 continue; 13537 thres = scsi_4btoul(page->descr[i].count); 13538 thres <<= CTL_LBP_EXPONENT; 13539 switch (page->descr[i].resource) { 13540 case 0x01: 13541 attr = "blocksavail"; 13542 break; 13543 case 0x02: 13544 attr = "blocksused"; 13545 break; 13546 case 0xf1: 13547 attr = "poolblocksavail"; 13548 break; 13549 case 0xf2: 13550 attr = "poolblocksused"; 13551 break; 13552 default: 13553 continue; 13554 } 13555 mtx_unlock(&softc->ctl_lock); // XXX 13556 val = lun->backend->lun_attr(lun->be_lun, attr); 13557 mtx_lock(&softc->ctl_lock); 13558 if (val == UINT64_MAX) 13559 continue; 13560 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 13561 == SLBPPD_ARMING_INC) 13562 e = (val >= thres); 13563 else 13564 e = (val <= thres); 13565 if (e) 13566 break; 13567 } 13568 mtx_lock(&lun->lun_lock); 13569 if (e) { 13570 scsi_u64to8b((uint8_t *)&page->descr[i] - 13571 (uint8_t *)page, lun->ua_tpt_info); 13572 if (lun->lasttpt == 0 || 13573 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 13574 lun->lasttpt = time_uptime; 13575 ctl_est_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13576 set = 1; 13577 } else 13578 set = 0; 13579 } else { 13580 lun->lasttpt = 0; 13581 ctl_clr_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13582 set = -1; 13583 } 13584 mtx_unlock(&lun->lun_lock); 13585 if (set != 0 && 13586 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 13587 /* Send msg to other side. */ 13588 bzero(&msg.ua, sizeof(msg.ua)); 13589 msg.hdr.msg_type = CTL_MSG_UA; 13590 msg.hdr.nexus.initid = -1; 13591 msg.hdr.nexus.targ_port = -1; 13592 msg.hdr.nexus.targ_lun = lun->lun; 13593 msg.hdr.nexus.targ_mapped_lun = lun->lun; 13594 msg.ua.ua_all = 1; 13595 msg.ua.ua_set = (set > 0); 13596 msg.ua.ua_type = CTL_UA_THIN_PROV_THRES; 13597 memcpy(msg.ua.ua_info, lun->ua_tpt_info, 8); 13598 mtx_unlock(&softc->ctl_lock); // XXX 13599 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13600 sizeof(msg.ua), M_WAITOK); 13601 mtx_lock(&softc->ctl_lock); 13602 } 13603 } 13604 mtx_sleep(&softc->thresh_thread, &softc->ctl_lock, 13605 PDROP, "-", CTL_LBP_PERIOD * hz); 13606 } 13607 softc->thresh_thread = NULL; 13608 kthread_exit(); 13609 } 13610 13611 static void 13612 ctl_enqueue_incoming(union ctl_io *io) 13613 { 13614 struct ctl_softc *softc = CTL_SOFTC(io); 13615 struct ctl_thread *thr; 13616 u_int idx; 13617 13618 idx = (io->io_hdr.nexus.targ_port * 127 + 13619 io->io_hdr.nexus.initid) % worker_threads; 13620 thr = &softc->threads[idx]; 13621 mtx_lock(&thr->queue_lock); 13622 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13623 mtx_unlock(&thr->queue_lock); 13624 wakeup(thr); 13625 } 13626 13627 static void 13628 ctl_enqueue_rtr(union ctl_io *io) 13629 { 13630 struct ctl_softc *softc = CTL_SOFTC(io); 13631 struct ctl_thread *thr; 13632 13633 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13634 mtx_lock(&thr->queue_lock); 13635 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13636 mtx_unlock(&thr->queue_lock); 13637 wakeup(thr); 13638 } 13639 13640 static void 13641 ctl_enqueue_done(union ctl_io *io) 13642 { 13643 struct ctl_softc *softc = CTL_SOFTC(io); 13644 struct ctl_thread *thr; 13645 13646 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13647 mtx_lock(&thr->queue_lock); 13648 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 13649 mtx_unlock(&thr->queue_lock); 13650 wakeup(thr); 13651 } 13652 13653 static void 13654 ctl_enqueue_isc(union ctl_io *io) 13655 { 13656 struct ctl_softc *softc = CTL_SOFTC(io); 13657 struct ctl_thread *thr; 13658 13659 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13660 mtx_lock(&thr->queue_lock); 13661 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 13662 mtx_unlock(&thr->queue_lock); 13663 wakeup(thr); 13664 } 13665 13666 /* 13667 * vim: ts=8 13668 */ 13669