1/*- 2 * Copyright (c) 2003-2009 Silicon Graphics International Corp. 3 * Copyright (c) 2012 The FreeBSD Foundation 4 * Copyright (c) 2014-2017 Alexander Motin <mav@FreeBSD.org> 5 * All rights reserved. 6 * 7 * Portions of this software were developed by Edward Tomasz Napierala 8 * under sponsorship from the FreeBSD Foundation. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions, and the following disclaimer, 15 * without modification. 16 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 17 * substantially similar to the "NO WARRANTY" disclaimer below 18 * ("Disclaimer") and any redistribution must be conditioned upon 19 * including a substantially similar Disclaimer requirement for further 20 * binary redistribution. 21 * 22 * NO WARRANTY 23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 24 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 26 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 27 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 31 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 32 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33 * POSSIBILITY OF SUCH DAMAGES. 34 * 35 * $Id$ 36 */ 37/* 38 * CAM Target Layer, a SCSI device emulation subsystem. 39 * 40 * Author: Ken Merry <ken@FreeBSD.org> 41 */ 42 43#include <sys/cdefs.h> 44__FBSDID("$FreeBSD: stable/11/sys/cam/ctl/ctl.c 361256 2020-05-19 14:42:09Z mav $"); 45 46#include <sys/param.h> 47#include <sys/systm.h> 48#include <sys/ctype.h> 49#include <sys/kernel.h> 50#include <sys/types.h> 51#include <sys/kthread.h> 52#include <sys/bio.h> 53#include <sys/fcntl.h> 54#include <sys/lock.h> 55#include <sys/module.h> 56#include <sys/mutex.h> 57#include <sys/condvar.h> 58#include <sys/malloc.h> 59#include <sys/conf.h> 60#include <sys/ioccom.h> 61#include <sys/queue.h> 62#include <sys/sbuf.h> 63#include <sys/smp.h> 64#include <sys/endian.h> 65#include <sys/proc.h> 66#include <sys/sched.h> 67#include <sys/sysctl.h> 68#include <vm/uma.h> 69 70#include <cam/cam.h> 71#include <cam/scsi/scsi_all.h> 72#include <cam/scsi/scsi_cd.h> 73#include <cam/scsi/scsi_da.h> 74#include <cam/ctl/ctl_io.h> 75#include <cam/ctl/ctl.h> 76#include <cam/ctl/ctl_frontend.h> 77#include <cam/ctl/ctl_util.h> 78#include <cam/ctl/ctl_backend.h> 79#include <cam/ctl/ctl_ioctl.h> 80#include <cam/ctl/ctl_ha.h> 81#include <cam/ctl/ctl_private.h> 82#include <cam/ctl/ctl_debug.h> 83#include <cam/ctl/ctl_scsi_all.h> 84#include <cam/ctl/ctl_error.h> 85 86struct ctl_softc *control_softc = NULL; 87 88/* 89 * Template mode pages. 90 */ 91 92/* 93 * Note that these are default values only. The actual values will be 94 * filled in when the user does a mode sense. 95 */ 96const static struct scsi_da_rw_recovery_page rw_er_page_default = { 97 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 98 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 99 /*byte3*/SMS_RWER_AWRE|SMS_RWER_ARRE, 100 /*read_retry_count*/0, 101 /*correction_span*/0, 102 /*head_offset_count*/0, 103 /*data_strobe_offset_cnt*/0, 104 /*byte8*/SMS_RWER_LBPERE, 105 /*write_retry_count*/0, 106 /*reserved2*/0, 107 /*recovery_time_limit*/{0, 0}, 108}; 109 110const static struct scsi_da_rw_recovery_page rw_er_page_changeable = { 111 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 112 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 113 /*byte3*/SMS_RWER_PER, 114 /*read_retry_count*/0, 115 /*correction_span*/0, 116 /*head_offset_count*/0, 117 /*data_strobe_offset_cnt*/0, 118 /*byte8*/SMS_RWER_LBPERE, 119 /*write_retry_count*/0, 120 /*reserved2*/0, 121 /*recovery_time_limit*/{0, 0}, 122}; 123 124const static struct scsi_format_page format_page_default = { 125 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 126 /*page_length*/sizeof(struct scsi_format_page) - 2, 127 /*tracks_per_zone*/ {0, 0}, 128 /*alt_sectors_per_zone*/ {0, 0}, 129 /*alt_tracks_per_zone*/ {0, 0}, 130 /*alt_tracks_per_lun*/ {0, 0}, 131 /*sectors_per_track*/ {(CTL_DEFAULT_SECTORS_PER_TRACK >> 8) & 0xff, 132 CTL_DEFAULT_SECTORS_PER_TRACK & 0xff}, 133 /*bytes_per_sector*/ {0, 0}, 134 /*interleave*/ {0, 0}, 135 /*track_skew*/ {0, 0}, 136 /*cylinder_skew*/ {0, 0}, 137 /*flags*/ SFP_HSEC, 138 /*reserved*/ {0, 0, 0} 139}; 140 141const static struct scsi_format_page format_page_changeable = { 142 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 143 /*page_length*/sizeof(struct scsi_format_page) - 2, 144 /*tracks_per_zone*/ {0, 0}, 145 /*alt_sectors_per_zone*/ {0, 0}, 146 /*alt_tracks_per_zone*/ {0, 0}, 147 /*alt_tracks_per_lun*/ {0, 0}, 148 /*sectors_per_track*/ {0, 0}, 149 /*bytes_per_sector*/ {0, 0}, 150 /*interleave*/ {0, 0}, 151 /*track_skew*/ {0, 0}, 152 /*cylinder_skew*/ {0, 0}, 153 /*flags*/ 0, 154 /*reserved*/ {0, 0, 0} 155}; 156 157const static struct scsi_rigid_disk_page rigid_disk_page_default = { 158 /*page_code*/SMS_RIGID_DISK_PAGE, 159 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 160 /*cylinders*/ {0, 0, 0}, 161 /*heads*/ CTL_DEFAULT_HEADS, 162 /*start_write_precomp*/ {0, 0, 0}, 163 /*start_reduced_current*/ {0, 0, 0}, 164 /*step_rate*/ {0, 0}, 165 /*landing_zone_cylinder*/ {0, 0, 0}, 166 /*rpl*/ SRDP_RPL_DISABLED, 167 /*rotational_offset*/ 0, 168 /*reserved1*/ 0, 169 /*rotation_rate*/ {(CTL_DEFAULT_ROTATION_RATE >> 8) & 0xff, 170 CTL_DEFAULT_ROTATION_RATE & 0xff}, 171 /*reserved2*/ {0, 0} 172}; 173 174const static struct scsi_rigid_disk_page rigid_disk_page_changeable = { 175 /*page_code*/SMS_RIGID_DISK_PAGE, 176 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 177 /*cylinders*/ {0, 0, 0}, 178 /*heads*/ 0, 179 /*start_write_precomp*/ {0, 0, 0}, 180 /*start_reduced_current*/ {0, 0, 0}, 181 /*step_rate*/ {0, 0}, 182 /*landing_zone_cylinder*/ {0, 0, 0}, 183 /*rpl*/ 0, 184 /*rotational_offset*/ 0, 185 /*reserved1*/ 0, 186 /*rotation_rate*/ {0, 0}, 187 /*reserved2*/ {0, 0} 188}; 189 190const static struct scsi_da_verify_recovery_page verify_er_page_default = { 191 /*page_code*/SMS_VERIFY_ERROR_RECOVERY_PAGE, 192 /*page_length*/sizeof(struct scsi_da_verify_recovery_page) - 2, 193 /*byte3*/0, 194 /*read_retry_count*/0, 195 /*reserved*/{ 0, 0, 0, 0, 0, 0 }, 196 /*recovery_time_limit*/{0, 0}, 197}; 198 199const static struct scsi_da_verify_recovery_page verify_er_page_changeable = { 200 /*page_code*/SMS_VERIFY_ERROR_RECOVERY_PAGE, 201 /*page_length*/sizeof(struct scsi_da_verify_recovery_page) - 2, 202 /*byte3*/SMS_VER_PER, 203 /*read_retry_count*/0, 204 /*reserved*/{ 0, 0, 0, 0, 0, 0 }, 205 /*recovery_time_limit*/{0, 0}, 206}; 207 208const static struct scsi_caching_page caching_page_default = { 209 /*page_code*/SMS_CACHING_PAGE, 210 /*page_length*/sizeof(struct scsi_caching_page) - 2, 211 /*flags1*/ SCP_DISC | SCP_WCE, 212 /*ret_priority*/ 0, 213 /*disable_pf_transfer_len*/ {0xff, 0xff}, 214 /*min_prefetch*/ {0, 0}, 215 /*max_prefetch*/ {0xff, 0xff}, 216 /*max_pf_ceiling*/ {0xff, 0xff}, 217 /*flags2*/ 0, 218 /*cache_segments*/ 0, 219 /*cache_seg_size*/ {0, 0}, 220 /*reserved*/ 0, 221 /*non_cache_seg_size*/ {0, 0, 0} 222}; 223 224const static struct scsi_caching_page caching_page_changeable = { 225 /*page_code*/SMS_CACHING_PAGE, 226 /*page_length*/sizeof(struct scsi_caching_page) - 2, 227 /*flags1*/ SCP_WCE | SCP_RCD, 228 /*ret_priority*/ 0, 229 /*disable_pf_transfer_len*/ {0, 0}, 230 /*min_prefetch*/ {0, 0}, 231 /*max_prefetch*/ {0, 0}, 232 /*max_pf_ceiling*/ {0, 0}, 233 /*flags2*/ 0, 234 /*cache_segments*/ 0, 235 /*cache_seg_size*/ {0, 0}, 236 /*reserved*/ 0, 237 /*non_cache_seg_size*/ {0, 0, 0} 238}; 239 240const static struct scsi_control_page control_page_default = { 241 /*page_code*/SMS_CONTROL_MODE_PAGE, 242 /*page_length*/sizeof(struct scsi_control_page) - 2, 243 /*rlec*/0, 244 /*queue_flags*/SCP_QUEUE_ALG_RESTRICTED, 245 /*eca_and_aen*/0, 246 /*flags4*/SCP_TAS, 247 /*aen_holdoff_period*/{0, 0}, 248 /*busy_timeout_period*/{0, 0}, 249 /*extended_selftest_completion_time*/{0, 0} 250}; 251 252const static struct scsi_control_page control_page_changeable = { 253 /*page_code*/SMS_CONTROL_MODE_PAGE, 254 /*page_length*/sizeof(struct scsi_control_page) - 2, 255 /*rlec*/SCP_DSENSE, 256 /*queue_flags*/SCP_QUEUE_ALG_MASK | SCP_NUAR, 257 /*eca_and_aen*/SCP_SWP, 258 /*flags4*/0, 259 /*aen_holdoff_period*/{0, 0}, 260 /*busy_timeout_period*/{0, 0}, 261 /*extended_selftest_completion_time*/{0, 0} 262}; 263 264#define CTL_CEM_LEN (sizeof(struct scsi_control_ext_page) - 4) 265 266const static struct scsi_control_ext_page control_ext_page_default = { 267 /*page_code*/SMS_CONTROL_MODE_PAGE | SMPH_SPF, 268 /*subpage_code*/0x01, 269 /*page_length*/{CTL_CEM_LEN >> 8, CTL_CEM_LEN}, 270 /*flags*/0, 271 /*prio*/0, 272 /*max_sense*/0 273}; 274 275const static struct scsi_control_ext_page control_ext_page_changeable = { 276 /*page_code*/SMS_CONTROL_MODE_PAGE | SMPH_SPF, 277 /*subpage_code*/0x01, 278 /*page_length*/{CTL_CEM_LEN >> 8, CTL_CEM_LEN}, 279 /*flags*/0, 280 /*prio*/0, 281 /*max_sense*/0xff 282}; 283 284const static struct scsi_info_exceptions_page ie_page_default = { 285 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 286 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 287 /*info_flags*/SIEP_FLAGS_EWASC, 288 /*mrie*/SIEP_MRIE_NO, 289 /*interval_timer*/{0, 0, 0, 0}, 290 /*report_count*/{0, 0, 0, 1} 291}; 292 293const static struct scsi_info_exceptions_page ie_page_changeable = { 294 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 295 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 296 /*info_flags*/SIEP_FLAGS_EWASC | SIEP_FLAGS_DEXCPT | SIEP_FLAGS_TEST | 297 SIEP_FLAGS_LOGERR, 298 /*mrie*/0x0f, 299 /*interval_timer*/{0xff, 0xff, 0xff, 0xff}, 300 /*report_count*/{0xff, 0xff, 0xff, 0xff} 301}; 302 303#define CTL_LBPM_LEN (sizeof(struct ctl_logical_block_provisioning_page) - 4) 304 305const static struct ctl_logical_block_provisioning_page lbp_page_default = {{ 306 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 307 /*subpage_code*/0x02, 308 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 309 /*flags*/0, 310 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 311 /*descr*/{}}, 312 {{/*flags*/0, 313 /*resource*/0x01, 314 /*reserved*/{0, 0}, 315 /*count*/{0, 0, 0, 0}}, 316 {/*flags*/0, 317 /*resource*/0x02, 318 /*reserved*/{0, 0}, 319 /*count*/{0, 0, 0, 0}}, 320 {/*flags*/0, 321 /*resource*/0xf1, 322 /*reserved*/{0, 0}, 323 /*count*/{0, 0, 0, 0}}, 324 {/*flags*/0, 325 /*resource*/0xf2, 326 /*reserved*/{0, 0}, 327 /*count*/{0, 0, 0, 0}} 328 } 329}; 330 331const static struct ctl_logical_block_provisioning_page lbp_page_changeable = {{ 332 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 333 /*subpage_code*/0x02, 334 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 335 /*flags*/SLBPP_SITUA, 336 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 337 /*descr*/{}}, 338 {{/*flags*/0, 339 /*resource*/0, 340 /*reserved*/{0, 0}, 341 /*count*/{0, 0, 0, 0}}, 342 {/*flags*/0, 343 /*resource*/0, 344 /*reserved*/{0, 0}, 345 /*count*/{0, 0, 0, 0}}, 346 {/*flags*/0, 347 /*resource*/0, 348 /*reserved*/{0, 0}, 349 /*count*/{0, 0, 0, 0}}, 350 {/*flags*/0, 351 /*resource*/0, 352 /*reserved*/{0, 0}, 353 /*count*/{0, 0, 0, 0}} 354 } 355}; 356 357const static struct scsi_cddvd_capabilities_page cddvd_page_default = { 358 /*page_code*/SMS_CDDVD_CAPS_PAGE, 359 /*page_length*/sizeof(struct scsi_cddvd_capabilities_page) - 2, 360 /*caps1*/0x3f, 361 /*caps2*/0x00, 362 /*caps3*/0xf0, 363 /*caps4*/0x00, 364 /*caps5*/0x29, 365 /*caps6*/0x00, 366 /*obsolete*/{0, 0}, 367 /*nvol_levels*/{0, 0}, 368 /*buffer_size*/{8, 0}, 369 /*obsolete2*/{0, 0}, 370 /*reserved*/0, 371 /*digital*/0, 372 /*obsolete3*/0, 373 /*copy_management*/0, 374 /*reserved2*/0, 375 /*rotation_control*/0, 376 /*cur_write_speed*/0, 377 /*num_speed_descr*/0, 378}; 379 380const static struct scsi_cddvd_capabilities_page cddvd_page_changeable = { 381 /*page_code*/SMS_CDDVD_CAPS_PAGE, 382 /*page_length*/sizeof(struct scsi_cddvd_capabilities_page) - 2, 383 /*caps1*/0, 384 /*caps2*/0, 385 /*caps3*/0, 386 /*caps4*/0, 387 /*caps5*/0, 388 /*caps6*/0, 389 /*obsolete*/{0, 0}, 390 /*nvol_levels*/{0, 0}, 391 /*buffer_size*/{0, 0}, 392 /*obsolete2*/{0, 0}, 393 /*reserved*/0, 394 /*digital*/0, 395 /*obsolete3*/0, 396 /*copy_management*/0, 397 /*reserved2*/0, 398 /*rotation_control*/0, 399 /*cur_write_speed*/0, 400 /*num_speed_descr*/0, 401}; 402 403SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 404static int worker_threads = -1; 405SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 406 &worker_threads, 1, "Number of worker threads"); 407static int ctl_debug = CTL_DEBUG_NONE; 408SYSCTL_INT(_kern_cam_ctl, OID_AUTO, debug, CTLFLAG_RWTUN, 409 &ctl_debug, 0, "Enabled debug flags"); 410static int ctl_lun_map_size = 1024; 411SYSCTL_INT(_kern_cam_ctl, OID_AUTO, lun_map_size, CTLFLAG_RWTUN, 412 &ctl_lun_map_size, 0, "Size of per-port LUN map (max LUN + 1)"); 413#ifdef CTL_TIME_IO 414static int ctl_time_io_secs = CTL_TIME_IO_DEFAULT_SECS; 415SYSCTL_INT(_kern_cam_ctl, OID_AUTO, time_io_secs, CTLFLAG_RWTUN, 416 &ctl_time_io_secs, 0, "Log requests taking more seconds"); 417#endif 418 419/* 420 * Maximum number of LUNs we support. MUST be a power of 2. 421 */ 422#define CTL_DEFAULT_MAX_LUNS 1024 423static int ctl_max_luns = CTL_DEFAULT_MAX_LUNS; 424TUNABLE_INT("kern.cam.ctl.max_luns", &ctl_max_luns); 425SYSCTL_INT(_kern_cam_ctl, OID_AUTO, max_luns, CTLFLAG_RDTUN, 426 &ctl_max_luns, CTL_DEFAULT_MAX_LUNS, "Maximum number of LUNs"); 427 428/* 429 * Maximum number of ports registered at one time. 430 */ 431#define CTL_DEFAULT_MAX_PORTS 256 432static int ctl_max_ports = CTL_DEFAULT_MAX_PORTS; 433TUNABLE_INT("kern.cam.ctl.max_ports", &ctl_max_ports); 434SYSCTL_INT(_kern_cam_ctl, OID_AUTO, max_ports, CTLFLAG_RDTUN, 435 &ctl_max_ports, CTL_DEFAULT_MAX_LUNS, "Maximum number of ports"); 436 437/* 438 * Maximum number of initiators we support. 439 */ 440#define CTL_MAX_INITIATORS (CTL_MAX_INIT_PER_PORT * ctl_max_ports) 441 442/* 443 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 444 * Extended INQUIRY Data (0x86), Mode Page Policy (0x87), 445 * SCSI Ports (0x88), Third-party Copy (0x8F), Block limits (0xB0), 446 * Block Device Characteristics (0xB1) and Logical Block Provisioning (0xB2) 447 */ 448#define SCSI_EVPD_NUM_SUPPORTED_PAGES 10 449 450static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 451 int param); 452static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 453static void ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest); 454static int ctl_init(void); 455static int ctl_shutdown(void); 456static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 457static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 458static void ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 459static void ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 460 struct ctl_ooa *ooa_hdr, 461 struct ctl_ooa_entry *kern_entries); 462static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 463 struct thread *td); 464static int ctl_enable_lun(struct ctl_lun *lun); 465static int ctl_disable_lun(struct ctl_lun *lun); 466static int ctl_free_lun(struct ctl_lun *lun); 467 468static int ctl_do_mode_select(union ctl_io *io); 469static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 470 uint64_t res_key, uint64_t sa_res_key, 471 uint8_t type, uint32_t residx, 472 struct ctl_scsiio *ctsio, 473 struct scsi_per_res_out *cdb, 474 struct scsi_per_res_out_parms* param); 475static void ctl_pro_preempt_other(struct ctl_lun *lun, 476 union ctl_ha_msg *msg); 477static void ctl_hndl_per_res_out_on_other_sc(union ctl_io *io); 478static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 479static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 480static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 481static int ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len); 482static int ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len); 483static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 484 int alloc_len); 485static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 486 int alloc_len); 487static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 488static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 489static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 490static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 491static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len); 492static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2, 493 bool seq); 494static ctl_action ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2); 495static ctl_action ctl_check_for_blockage(struct ctl_lun *lun, 496 union ctl_io *pending_io, union ctl_io *ooa_io); 497static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 498 union ctl_io **starting_io); 499static void ctl_try_unblock_io(struct ctl_lun *lun, union ctl_io *io, 500 bool skip); 501static void ctl_try_unblock_others(struct ctl_lun *lun, union ctl_io *io, 502 bool skip); 503static int ctl_scsiio_lun_check(struct ctl_lun *lun, 504 const struct ctl_cmd_entry *entry, 505 struct ctl_scsiio *ctsio); 506static void ctl_failover_lun(union ctl_io *io); 507static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 508 struct ctl_scsiio *ctsio); 509static int ctl_scsiio(struct ctl_scsiio *ctsio); 510 511static int ctl_target_reset(union ctl_io *io); 512static void ctl_do_lun_reset(struct ctl_lun *lun, uint32_t initidx, 513 ctl_ua_type ua_type); 514static int ctl_lun_reset(union ctl_io *io); 515static int ctl_abort_task(union ctl_io *io); 516static int ctl_abort_task_set(union ctl_io *io); 517static int ctl_query_task(union ctl_io *io, int task_set); 518static void ctl_i_t_nexus_loss(struct ctl_softc *softc, uint32_t initidx, 519 ctl_ua_type ua_type); 520static int ctl_i_t_nexus_reset(union ctl_io *io); 521static int ctl_query_async_event(union ctl_io *io); 522static void ctl_run_task(union ctl_io *io); 523#ifdef CTL_IO_DELAY 524static void ctl_datamove_timer_wakeup(void *arg); 525static void ctl_done_timer_wakeup(void *arg); 526#endif /* CTL_IO_DELAY */ 527 528static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 529static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 530static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 531static void ctl_datamove_remote_write(union ctl_io *io); 532static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 533static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 534static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 535static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 536 ctl_ha_dt_cb callback); 537static void ctl_datamove_remote_read(union ctl_io *io); 538static void ctl_datamove_remote(union ctl_io *io); 539static void ctl_process_done(union ctl_io *io); 540static void ctl_thresh_thread(void *arg); 541static void ctl_work_thread(void *arg); 542static void ctl_enqueue_incoming(union ctl_io *io); 543static void ctl_enqueue_rtr(union ctl_io *io); 544static void ctl_enqueue_done(union ctl_io *io); 545static void ctl_enqueue_isc(union ctl_io *io); 546static const struct ctl_cmd_entry * 547 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa); 548static const struct ctl_cmd_entry * 549 ctl_validate_command(struct ctl_scsiio *ctsio); 550static int ctl_cmd_applicable(uint8_t lun_type, 551 const struct ctl_cmd_entry *entry); 552static int ctl_ha_init(void); 553static int ctl_ha_shutdown(void); 554 555static uint64_t ctl_get_prkey(struct ctl_lun *lun, uint32_t residx); 556static void ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx); 557static void ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx); 558static void ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key); 559 560/* 561 * Load the serialization table. This isn't very pretty, but is probably 562 * the easiest way to do it. 563 */ 564#include "ctl_ser_table.c" 565 566/* 567 * We only need to define open, close and ioctl routines for this driver. 568 */ 569static struct cdevsw ctl_cdevsw = { 570 .d_version = D_VERSION, 571 .d_flags = 0, 572 .d_open = ctl_open, 573 .d_close = ctl_close, 574 .d_ioctl = ctl_ioctl, 575 .d_name = "ctl", 576}; 577 578 579MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 580 581static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 582 583static moduledata_t ctl_moduledata = { 584 "ctl", 585 ctl_module_event_handler, 586 NULL 587}; 588 589DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 590MODULE_VERSION(ctl, 1); 591 592static struct ctl_frontend ha_frontend = 593{ 594 .name = "ha", 595 .init = ctl_ha_init, 596 .shutdown = ctl_ha_shutdown, 597}; 598 599static int 600ctl_ha_init(void) 601{ 602 struct ctl_softc *softc = control_softc; 603 604 if (ctl_pool_create(softc, "othersc", CTL_POOL_ENTRIES_OTHER_SC, 605 &softc->othersc_pool) != 0) 606 return (ENOMEM); 607 if (ctl_ha_msg_init(softc) != CTL_HA_STATUS_SUCCESS) { 608 ctl_pool_free(softc->othersc_pool); 609 return (EIO); 610 } 611 if (ctl_ha_msg_register(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 612 != CTL_HA_STATUS_SUCCESS) { 613 ctl_ha_msg_destroy(softc); 614 ctl_pool_free(softc->othersc_pool); 615 return (EIO); 616 } 617 return (0); 618}; 619 620static int 621ctl_ha_shutdown(void) 622{ 623 struct ctl_softc *softc = control_softc; 624 struct ctl_port *port; 625 626 ctl_ha_msg_shutdown(softc); 627 if (ctl_ha_msg_deregister(CTL_HA_CHAN_CTL) != CTL_HA_STATUS_SUCCESS) 628 return (EIO); 629 if (ctl_ha_msg_destroy(softc) != CTL_HA_STATUS_SUCCESS) 630 return (EIO); 631 ctl_pool_free(softc->othersc_pool); 632 while ((port = STAILQ_FIRST(&ha_frontend.port_list)) != NULL) { 633 ctl_port_deregister(port); 634 free(port->port_name, M_CTL); 635 free(port, M_CTL); 636 } 637 return (0); 638}; 639 640static void 641ctl_ha_datamove(union ctl_io *io) 642{ 643 struct ctl_lun *lun = CTL_LUN(io); 644 struct ctl_sg_entry *sgl; 645 union ctl_ha_msg msg; 646 uint32_t sg_entries_sent; 647 int do_sg_copy, i, j; 648 649 memset(&msg.dt, 0, sizeof(msg.dt)); 650 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 651 msg.hdr.original_sc = io->io_hdr.remote_io; 652 msg.hdr.serializing_sc = io; 653 msg.hdr.nexus = io->io_hdr.nexus; 654 msg.hdr.status = io->io_hdr.status; 655 msg.dt.flags = io->io_hdr.flags; 656 657 /* 658 * We convert everything into a S/G list here. We can't 659 * pass by reference, only by value between controllers. 660 * So we can't pass a pointer to the S/G list, only as many 661 * S/G entries as we can fit in here. If it's possible for 662 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 663 * then we need to break this up into multiple transfers. 664 */ 665 if (io->scsiio.kern_sg_entries == 0) { 666 msg.dt.kern_sg_entries = 1; 667#if 0 668 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 669 msg.dt.sg_list[0].addr = io->scsiio.kern_data_ptr; 670 } else { 671 /* XXX KDM use busdma here! */ 672 msg.dt.sg_list[0].addr = 673 (void *)vtophys(io->scsiio.kern_data_ptr); 674 } 675#else 676 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 677 ("HA does not support BUS_ADDR")); 678 msg.dt.sg_list[0].addr = io->scsiio.kern_data_ptr; 679#endif 680 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 681 do_sg_copy = 0; 682 } else { 683 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 684 do_sg_copy = 1; 685 } 686 687 msg.dt.kern_data_len = io->scsiio.kern_data_len; 688 msg.dt.kern_total_len = io->scsiio.kern_total_len; 689 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 690 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 691 msg.dt.sg_sequence = 0; 692 693 /* 694 * Loop until we've sent all of the S/G entries. On the 695 * other end, we'll recompose these S/G entries into one 696 * contiguous list before processing. 697 */ 698 for (sg_entries_sent = 0; sg_entries_sent < msg.dt.kern_sg_entries; 699 msg.dt.sg_sequence++) { 700 msg.dt.cur_sg_entries = MIN((sizeof(msg.dt.sg_list) / 701 sizeof(msg.dt.sg_list[0])), 702 msg.dt.kern_sg_entries - sg_entries_sent); 703 if (do_sg_copy != 0) { 704 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 705 for (i = sg_entries_sent, j = 0; 706 i < msg.dt.cur_sg_entries; i++, j++) { 707#if 0 708 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 709 msg.dt.sg_list[j].addr = sgl[i].addr; 710 } else { 711 /* XXX KDM use busdma here! */ 712 msg.dt.sg_list[j].addr = 713 (void *)vtophys(sgl[i].addr); 714 } 715#else 716 KASSERT((io->io_hdr.flags & 717 CTL_FLAG_BUS_ADDR) == 0, 718 ("HA does not support BUS_ADDR")); 719 msg.dt.sg_list[j].addr = sgl[i].addr; 720#endif 721 msg.dt.sg_list[j].len = sgl[i].len; 722 } 723 } 724 725 sg_entries_sent += msg.dt.cur_sg_entries; 726 msg.dt.sg_last = (sg_entries_sent >= msg.dt.kern_sg_entries); 727 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 728 sizeof(msg.dt) - sizeof(msg.dt.sg_list) + 729 sizeof(struct ctl_sg_entry) * msg.dt.cur_sg_entries, 730 M_WAITOK) > CTL_HA_STATUS_SUCCESS) { 731 io->io_hdr.port_status = 31341; 732 io->scsiio.be_move_done(io); 733 return; 734 } 735 msg.dt.sent_sg_entries = sg_entries_sent; 736 } 737 738 /* 739 * Officially handover the request from us to peer. 740 * If failover has just happened, then we must return error. 741 * If failover happen just after, then it is not our problem. 742 */ 743 if (lun) 744 mtx_lock(&lun->lun_lock); 745 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 746 if (lun) 747 mtx_unlock(&lun->lun_lock); 748 io->io_hdr.port_status = 31342; 749 io->scsiio.be_move_done(io); 750 return; 751 } 752 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 753 io->io_hdr.flags |= CTL_FLAG_DMA_INPROG; 754 if (lun) 755 mtx_unlock(&lun->lun_lock); 756} 757 758static void 759ctl_ha_done(union ctl_io *io) 760{ 761 union ctl_ha_msg msg; 762 763 if (io->io_hdr.io_type == CTL_IO_SCSI) { 764 memset(&msg, 0, sizeof(msg)); 765 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 766 msg.hdr.original_sc = io->io_hdr.remote_io; 767 msg.hdr.nexus = io->io_hdr.nexus; 768 msg.hdr.status = io->io_hdr.status; 769 msg.scsi.scsi_status = io->scsiio.scsi_status; 770 msg.scsi.tag_num = io->scsiio.tag_num; 771 msg.scsi.tag_type = io->scsiio.tag_type; 772 msg.scsi.sense_len = io->scsiio.sense_len; 773 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 774 io->scsiio.sense_len); 775 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 776 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 777 msg.scsi.sense_len, M_WAITOK); 778 } 779 ctl_free_io(io); 780} 781 782static void 783ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 784 union ctl_ha_msg *msg_info) 785{ 786 struct ctl_scsiio *ctsio; 787 788 if (msg_info->hdr.original_sc == NULL) { 789 printf("%s: original_sc == NULL!\n", __func__); 790 /* XXX KDM now what? */ 791 return; 792 } 793 794 ctsio = &msg_info->hdr.original_sc->scsiio; 795 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 796 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 797 ctsio->io_hdr.status = msg_info->hdr.status; 798 ctsio->scsi_status = msg_info->scsi.scsi_status; 799 ctsio->sense_len = msg_info->scsi.sense_len; 800 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 801 msg_info->scsi.sense_len); 802 ctl_enqueue_isc((union ctl_io *)ctsio); 803} 804 805static void 806ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 807 union ctl_ha_msg *msg_info) 808{ 809 struct ctl_scsiio *ctsio; 810 811 if (msg_info->hdr.serializing_sc == NULL) { 812 printf("%s: serializing_sc == NULL!\n", __func__); 813 /* XXX KDM now what? */ 814 return; 815 } 816 817 ctsio = &msg_info->hdr.serializing_sc->scsiio; 818 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 819 ctl_enqueue_isc((union ctl_io *)ctsio); 820} 821 822void 823ctl_isc_announce_lun(struct ctl_lun *lun) 824{ 825 struct ctl_softc *softc = lun->ctl_softc; 826 union ctl_ha_msg *msg; 827 struct ctl_ha_msg_lun_pr_key pr_key; 828 int i, k; 829 830 if (softc->ha_link != CTL_HA_LINK_ONLINE) 831 return; 832 mtx_lock(&lun->lun_lock); 833 i = sizeof(msg->lun); 834 if (lun->lun_devid) 835 i += lun->lun_devid->len; 836 i += sizeof(pr_key) * lun->pr_key_count; 837alloc: 838 mtx_unlock(&lun->lun_lock); 839 msg = malloc(i, M_CTL, M_WAITOK); 840 mtx_lock(&lun->lun_lock); 841 k = sizeof(msg->lun); 842 if (lun->lun_devid) 843 k += lun->lun_devid->len; 844 k += sizeof(pr_key) * lun->pr_key_count; 845 if (i < k) { 846 free(msg, M_CTL); 847 i = k; 848 goto alloc; 849 } 850 bzero(&msg->lun, sizeof(msg->lun)); 851 msg->hdr.msg_type = CTL_MSG_LUN_SYNC; 852 msg->hdr.nexus.targ_lun = lun->lun; 853 msg->hdr.nexus.targ_mapped_lun = lun->lun; 854 msg->lun.flags = lun->flags; 855 msg->lun.pr_generation = lun->pr_generation; 856 msg->lun.pr_res_idx = lun->pr_res_idx; 857 msg->lun.pr_res_type = lun->pr_res_type; 858 msg->lun.pr_key_count = lun->pr_key_count; 859 i = 0; 860 if (lun->lun_devid) { 861 msg->lun.lun_devid_len = lun->lun_devid->len; 862 memcpy(&msg->lun.data[i], lun->lun_devid->data, 863 msg->lun.lun_devid_len); 864 i += msg->lun.lun_devid_len; 865 } 866 for (k = 0; k < CTL_MAX_INITIATORS; k++) { 867 if ((pr_key.pr_key = ctl_get_prkey(lun, k)) == 0) 868 continue; 869 pr_key.pr_iid = k; 870 memcpy(&msg->lun.data[i], &pr_key, sizeof(pr_key)); 871 i += sizeof(pr_key); 872 } 873 mtx_unlock(&lun->lun_lock); 874 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 875 M_WAITOK); 876 free(msg, M_CTL); 877 878 if (lun->flags & CTL_LUN_PRIMARY_SC) { 879 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 880 ctl_isc_announce_mode(lun, -1, 881 lun->mode_pages.index[i].page_code & SMPH_PC_MASK, 882 lun->mode_pages.index[i].subpage); 883 } 884 } 885} 886 887void 888ctl_isc_announce_port(struct ctl_port *port) 889{ 890 struct ctl_softc *softc = port->ctl_softc; 891 union ctl_ha_msg *msg; 892 int i; 893 894 if (port->targ_port < softc->port_min || 895 port->targ_port >= softc->port_max || 896 softc->ha_link != CTL_HA_LINK_ONLINE) 897 return; 898 i = sizeof(msg->port) + strlen(port->port_name) + 1; 899 if (port->lun_map) 900 i += port->lun_map_size * sizeof(uint32_t); 901 if (port->port_devid) 902 i += port->port_devid->len; 903 if (port->target_devid) 904 i += port->target_devid->len; 905 if (port->init_devid) 906 i += port->init_devid->len; 907 msg = malloc(i, M_CTL, M_WAITOK); 908 bzero(&msg->port, sizeof(msg->port)); 909 msg->hdr.msg_type = CTL_MSG_PORT_SYNC; 910 msg->hdr.nexus.targ_port = port->targ_port; 911 msg->port.port_type = port->port_type; 912 msg->port.physical_port = port->physical_port; 913 msg->port.virtual_port = port->virtual_port; 914 msg->port.status = port->status; 915 i = 0; 916 msg->port.name_len = sprintf(&msg->port.data[i], 917 "%d:%s", softc->ha_id, port->port_name) + 1; 918 i += msg->port.name_len; 919 if (port->lun_map) { 920 msg->port.lun_map_len = port->lun_map_size * sizeof(uint32_t); 921 memcpy(&msg->port.data[i], port->lun_map, 922 msg->port.lun_map_len); 923 i += msg->port.lun_map_len; 924 } 925 if (port->port_devid) { 926 msg->port.port_devid_len = port->port_devid->len; 927 memcpy(&msg->port.data[i], port->port_devid->data, 928 msg->port.port_devid_len); 929 i += msg->port.port_devid_len; 930 } 931 if (port->target_devid) { 932 msg->port.target_devid_len = port->target_devid->len; 933 memcpy(&msg->port.data[i], port->target_devid->data, 934 msg->port.target_devid_len); 935 i += msg->port.target_devid_len; 936 } 937 if (port->init_devid) { 938 msg->port.init_devid_len = port->init_devid->len; 939 memcpy(&msg->port.data[i], port->init_devid->data, 940 msg->port.init_devid_len); 941 i += msg->port.init_devid_len; 942 } 943 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 944 M_WAITOK); 945 free(msg, M_CTL); 946} 947 948void 949ctl_isc_announce_iid(struct ctl_port *port, int iid) 950{ 951 struct ctl_softc *softc = port->ctl_softc; 952 union ctl_ha_msg *msg; 953 int i, l; 954 955 if (port->targ_port < softc->port_min || 956 port->targ_port >= softc->port_max || 957 softc->ha_link != CTL_HA_LINK_ONLINE) 958 return; 959 mtx_lock(&softc->ctl_lock); 960 i = sizeof(msg->iid); 961 l = 0; 962 if (port->wwpn_iid[iid].name) 963 l = strlen(port->wwpn_iid[iid].name) + 1; 964 i += l; 965 msg = malloc(i, M_CTL, M_NOWAIT); 966 if (msg == NULL) { 967 mtx_unlock(&softc->ctl_lock); 968 return; 969 } 970 bzero(&msg->iid, sizeof(msg->iid)); 971 msg->hdr.msg_type = CTL_MSG_IID_SYNC; 972 msg->hdr.nexus.targ_port = port->targ_port; 973 msg->hdr.nexus.initid = iid; 974 msg->iid.in_use = port->wwpn_iid[iid].in_use; 975 msg->iid.name_len = l; 976 msg->iid.wwpn = port->wwpn_iid[iid].wwpn; 977 if (port->wwpn_iid[iid].name) 978 strlcpy(msg->iid.data, port->wwpn_iid[iid].name, l); 979 mtx_unlock(&softc->ctl_lock); 980 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->iid, i, M_NOWAIT); 981 free(msg, M_CTL); 982} 983 984void 985ctl_isc_announce_mode(struct ctl_lun *lun, uint32_t initidx, 986 uint8_t page, uint8_t subpage) 987{ 988 struct ctl_softc *softc = lun->ctl_softc; 989 union ctl_ha_msg msg; 990 u_int i; 991 992 if (softc->ha_link != CTL_HA_LINK_ONLINE) 993 return; 994 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 995 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) == 996 page && lun->mode_pages.index[i].subpage == subpage) 997 break; 998 } 999 if (i == CTL_NUM_MODE_PAGES) 1000 return; 1001 1002 /* Don't try to replicate pages not present on this device. */ 1003 if (lun->mode_pages.index[i].page_data == NULL) 1004 return; 1005 1006 bzero(&msg.mode, sizeof(msg.mode)); 1007 msg.hdr.msg_type = CTL_MSG_MODE_SYNC; 1008 msg.hdr.nexus.targ_port = initidx / CTL_MAX_INIT_PER_PORT; 1009 msg.hdr.nexus.initid = initidx % CTL_MAX_INIT_PER_PORT; 1010 msg.hdr.nexus.targ_lun = lun->lun; 1011 msg.hdr.nexus.targ_mapped_lun = lun->lun; 1012 msg.mode.page_code = page; 1013 msg.mode.subpage = subpage; 1014 msg.mode.page_len = lun->mode_pages.index[i].page_len; 1015 memcpy(msg.mode.data, lun->mode_pages.index[i].page_data, 1016 msg.mode.page_len); 1017 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg.mode, sizeof(msg.mode), 1018 M_WAITOK); 1019} 1020 1021static void 1022ctl_isc_ha_link_up(struct ctl_softc *softc) 1023{ 1024 struct ctl_port *port; 1025 struct ctl_lun *lun; 1026 union ctl_ha_msg msg; 1027 int i; 1028 1029 /* Announce this node parameters to peer for validation. */ 1030 msg.login.msg_type = CTL_MSG_LOGIN; 1031 msg.login.version = CTL_HA_VERSION; 1032 msg.login.ha_mode = softc->ha_mode; 1033 msg.login.ha_id = softc->ha_id; 1034 msg.login.max_luns = ctl_max_luns; 1035 msg.login.max_ports = ctl_max_ports; 1036 msg.login.max_init_per_port = CTL_MAX_INIT_PER_PORT; 1037 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg.login, sizeof(msg.login), 1038 M_WAITOK); 1039 1040 STAILQ_FOREACH(port, &softc->port_list, links) { 1041 ctl_isc_announce_port(port); 1042 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1043 if (port->wwpn_iid[i].in_use) 1044 ctl_isc_announce_iid(port, i); 1045 } 1046 } 1047 STAILQ_FOREACH(lun, &softc->lun_list, links) 1048 ctl_isc_announce_lun(lun); 1049} 1050 1051static void 1052ctl_isc_ha_link_down(struct ctl_softc *softc) 1053{ 1054 struct ctl_port *port; 1055 struct ctl_lun *lun; 1056 union ctl_io *io; 1057 int i; 1058 1059 mtx_lock(&softc->ctl_lock); 1060 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1061 mtx_lock(&lun->lun_lock); 1062 if (lun->flags & CTL_LUN_PEER_SC_PRIMARY) { 1063 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 1064 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 1065 } 1066 mtx_unlock(&lun->lun_lock); 1067 1068 mtx_unlock(&softc->ctl_lock); 1069 io = ctl_alloc_io(softc->othersc_pool); 1070 mtx_lock(&softc->ctl_lock); 1071 ctl_zero_io(io); 1072 io->io_hdr.msg_type = CTL_MSG_FAILOVER; 1073 io->io_hdr.nexus.targ_mapped_lun = lun->lun; 1074 ctl_enqueue_isc(io); 1075 } 1076 1077 STAILQ_FOREACH(port, &softc->port_list, links) { 1078 if (port->targ_port >= softc->port_min && 1079 port->targ_port < softc->port_max) 1080 continue; 1081 port->status &= ~CTL_PORT_STATUS_ONLINE; 1082 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1083 port->wwpn_iid[i].in_use = 0; 1084 free(port->wwpn_iid[i].name, M_CTL); 1085 port->wwpn_iid[i].name = NULL; 1086 } 1087 } 1088 mtx_unlock(&softc->ctl_lock); 1089} 1090 1091static void 1092ctl_isc_ua(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1093{ 1094 struct ctl_lun *lun; 1095 uint32_t iid = ctl_get_initindex(&msg->hdr.nexus); 1096 1097 mtx_lock(&softc->ctl_lock); 1098 if (msg->hdr.nexus.targ_mapped_lun >= ctl_max_luns || 1099 (lun = softc->ctl_luns[msg->hdr.nexus.targ_mapped_lun]) == NULL) { 1100 mtx_unlock(&softc->ctl_lock); 1101 return; 1102 } 1103 mtx_lock(&lun->lun_lock); 1104 mtx_unlock(&softc->ctl_lock); 1105 if (msg->ua.ua_type == CTL_UA_THIN_PROV_THRES && msg->ua.ua_set) 1106 memcpy(lun->ua_tpt_info, msg->ua.ua_info, 8); 1107 if (msg->ua.ua_all) { 1108 if (msg->ua.ua_set) 1109 ctl_est_ua_all(lun, iid, msg->ua.ua_type); 1110 else 1111 ctl_clr_ua_all(lun, iid, msg->ua.ua_type); 1112 } else { 1113 if (msg->ua.ua_set) 1114 ctl_est_ua(lun, iid, msg->ua.ua_type); 1115 else 1116 ctl_clr_ua(lun, iid, msg->ua.ua_type); 1117 } 1118 mtx_unlock(&lun->lun_lock); 1119} 1120 1121static void 1122ctl_isc_lun_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1123{ 1124 struct ctl_lun *lun; 1125 struct ctl_ha_msg_lun_pr_key pr_key; 1126 int i, k; 1127 ctl_lun_flags oflags; 1128 uint32_t targ_lun; 1129 1130 targ_lun = msg->hdr.nexus.targ_mapped_lun; 1131 mtx_lock(&softc->ctl_lock); 1132 if (targ_lun >= ctl_max_luns || 1133 (lun = softc->ctl_luns[targ_lun]) == NULL) { 1134 mtx_unlock(&softc->ctl_lock); 1135 return; 1136 } 1137 mtx_lock(&lun->lun_lock); 1138 mtx_unlock(&softc->ctl_lock); 1139 if (lun->flags & CTL_LUN_DISABLED) { 1140 mtx_unlock(&lun->lun_lock); 1141 return; 1142 } 1143 i = (lun->lun_devid != NULL) ? lun->lun_devid->len : 0; 1144 if (msg->lun.lun_devid_len != i || (i > 0 && 1145 memcmp(&msg->lun.data[0], lun->lun_devid->data, i) != 0)) { 1146 mtx_unlock(&lun->lun_lock); 1147 printf("%s: Received conflicting HA LUN %d\n", 1148 __func__, targ_lun); 1149 return; 1150 } else { 1151 /* Record whether peer is primary. */ 1152 oflags = lun->flags; 1153 if ((msg->lun.flags & CTL_LUN_PRIMARY_SC) && 1154 (msg->lun.flags & CTL_LUN_DISABLED) == 0) 1155 lun->flags |= CTL_LUN_PEER_SC_PRIMARY; 1156 else 1157 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 1158 if (oflags != lun->flags) 1159 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 1160 1161 /* If peer is primary and we are not -- use data */ 1162 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 1163 (lun->flags & CTL_LUN_PEER_SC_PRIMARY)) { 1164 lun->pr_generation = msg->lun.pr_generation; 1165 lun->pr_res_idx = msg->lun.pr_res_idx; 1166 lun->pr_res_type = msg->lun.pr_res_type; 1167 lun->pr_key_count = msg->lun.pr_key_count; 1168 for (k = 0; k < CTL_MAX_INITIATORS; k++) 1169 ctl_clr_prkey(lun, k); 1170 for (k = 0; k < msg->lun.pr_key_count; k++) { 1171 memcpy(&pr_key, &msg->lun.data[i], 1172 sizeof(pr_key)); 1173 ctl_alloc_prkey(lun, pr_key.pr_iid); 1174 ctl_set_prkey(lun, pr_key.pr_iid, 1175 pr_key.pr_key); 1176 i += sizeof(pr_key); 1177 } 1178 } 1179 1180 mtx_unlock(&lun->lun_lock); 1181 CTL_DEBUG_PRINT(("%s: Known LUN %d, peer is %s\n", 1182 __func__, targ_lun, 1183 (msg->lun.flags & CTL_LUN_PRIMARY_SC) ? 1184 "primary" : "secondary")); 1185 1186 /* If we are primary but peer doesn't know -- notify */ 1187 if ((lun->flags & CTL_LUN_PRIMARY_SC) && 1188 (msg->lun.flags & CTL_LUN_PEER_SC_PRIMARY) == 0) 1189 ctl_isc_announce_lun(lun); 1190 } 1191} 1192 1193static void 1194ctl_isc_port_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1195{ 1196 struct ctl_port *port; 1197 struct ctl_lun *lun; 1198 int i, new; 1199 1200 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 1201 if (port == NULL) { 1202 CTL_DEBUG_PRINT(("%s: New port %d\n", __func__, 1203 msg->hdr.nexus.targ_port)); 1204 new = 1; 1205 port = malloc(sizeof(*port), M_CTL, M_WAITOK | M_ZERO); 1206 port->frontend = &ha_frontend; 1207 port->targ_port = msg->hdr.nexus.targ_port; 1208 port->fe_datamove = ctl_ha_datamove; 1209 port->fe_done = ctl_ha_done; 1210 } else if (port->frontend == &ha_frontend) { 1211 CTL_DEBUG_PRINT(("%s: Updated port %d\n", __func__, 1212 msg->hdr.nexus.targ_port)); 1213 new = 0; 1214 } else { 1215 printf("%s: Received conflicting HA port %d\n", 1216 __func__, msg->hdr.nexus.targ_port); 1217 return; 1218 } 1219 port->port_type = msg->port.port_type; 1220 port->physical_port = msg->port.physical_port; 1221 port->virtual_port = msg->port.virtual_port; 1222 port->status = msg->port.status; 1223 i = 0; 1224 free(port->port_name, M_CTL); 1225 port->port_name = strndup(&msg->port.data[i], msg->port.name_len, 1226 M_CTL); 1227 i += msg->port.name_len; 1228 if (msg->port.lun_map_len != 0) { 1229 if (port->lun_map == NULL || 1230 port->lun_map_size * sizeof(uint32_t) < 1231 msg->port.lun_map_len) { 1232 port->lun_map_size = 0; 1233 free(port->lun_map, M_CTL); 1234 port->lun_map = malloc(msg->port.lun_map_len, 1235 M_CTL, M_WAITOK); 1236 } 1237 memcpy(port->lun_map, &msg->port.data[i], msg->port.lun_map_len); 1238 port->lun_map_size = msg->port.lun_map_len / sizeof(uint32_t); 1239 i += msg->port.lun_map_len; 1240 } else { 1241 port->lun_map_size = 0; 1242 free(port->lun_map, M_CTL); 1243 port->lun_map = NULL; 1244 } 1245 if (msg->port.port_devid_len != 0) { 1246 if (port->port_devid == NULL || 1247 port->port_devid->len < msg->port.port_devid_len) { 1248 free(port->port_devid, M_CTL); 1249 port->port_devid = malloc(sizeof(struct ctl_devid) + 1250 msg->port.port_devid_len, M_CTL, M_WAITOK); 1251 } 1252 memcpy(port->port_devid->data, &msg->port.data[i], 1253 msg->port.port_devid_len); 1254 port->port_devid->len = msg->port.port_devid_len; 1255 i += msg->port.port_devid_len; 1256 } else { 1257 free(port->port_devid, M_CTL); 1258 port->port_devid = NULL; 1259 } 1260 if (msg->port.target_devid_len != 0) { 1261 if (port->target_devid == NULL || 1262 port->target_devid->len < msg->port.target_devid_len) { 1263 free(port->target_devid, M_CTL); 1264 port->target_devid = malloc(sizeof(struct ctl_devid) + 1265 msg->port.target_devid_len, M_CTL, M_WAITOK); 1266 } 1267 memcpy(port->target_devid->data, &msg->port.data[i], 1268 msg->port.target_devid_len); 1269 port->target_devid->len = msg->port.target_devid_len; 1270 i += msg->port.target_devid_len; 1271 } else { 1272 free(port->target_devid, M_CTL); 1273 port->target_devid = NULL; 1274 } 1275 if (msg->port.init_devid_len != 0) { 1276 if (port->init_devid == NULL || 1277 port->init_devid->len < msg->port.init_devid_len) { 1278 free(port->init_devid, M_CTL); 1279 port->init_devid = malloc(sizeof(struct ctl_devid) + 1280 msg->port.init_devid_len, M_CTL, M_WAITOK); 1281 } 1282 memcpy(port->init_devid->data, &msg->port.data[i], 1283 msg->port.init_devid_len); 1284 port->init_devid->len = msg->port.init_devid_len; 1285 i += msg->port.init_devid_len; 1286 } else { 1287 free(port->init_devid, M_CTL); 1288 port->init_devid = NULL; 1289 } 1290 if (new) { 1291 if (ctl_port_register(port) != 0) { 1292 printf("%s: ctl_port_register() failed with error\n", 1293 __func__); 1294 } 1295 } 1296 mtx_lock(&softc->ctl_lock); 1297 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1298 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 1299 continue; 1300 mtx_lock(&lun->lun_lock); 1301 ctl_est_ua_all(lun, -1, CTL_UA_INQ_CHANGE); 1302 mtx_unlock(&lun->lun_lock); 1303 } 1304 mtx_unlock(&softc->ctl_lock); 1305} 1306 1307static void 1308ctl_isc_iid_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1309{ 1310 struct ctl_port *port; 1311 int iid; 1312 1313 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 1314 if (port == NULL) { 1315 printf("%s: Received IID for unknown port %d\n", 1316 __func__, msg->hdr.nexus.targ_port); 1317 return; 1318 } 1319 iid = msg->hdr.nexus.initid; 1320 if (port->wwpn_iid[iid].in_use != 0 && 1321 msg->iid.in_use == 0) 1322 ctl_i_t_nexus_loss(softc, iid, CTL_UA_POWERON); 1323 port->wwpn_iid[iid].in_use = msg->iid.in_use; 1324 port->wwpn_iid[iid].wwpn = msg->iid.wwpn; 1325 free(port->wwpn_iid[iid].name, M_CTL); 1326 if (msg->iid.name_len) { 1327 port->wwpn_iid[iid].name = strndup(&msg->iid.data[0], 1328 msg->iid.name_len, M_CTL); 1329 } else 1330 port->wwpn_iid[iid].name = NULL; 1331} 1332 1333static void 1334ctl_isc_login(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1335{ 1336 1337 if (msg->login.version != CTL_HA_VERSION) { 1338 printf("CTL HA peers have different versions %d != %d\n", 1339 msg->login.version, CTL_HA_VERSION); 1340 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1341 return; 1342 } 1343 if (msg->login.ha_mode != softc->ha_mode) { 1344 printf("CTL HA peers have different ha_mode %d != %d\n", 1345 msg->login.ha_mode, softc->ha_mode); 1346 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1347 return; 1348 } 1349 if (msg->login.ha_id == softc->ha_id) { 1350 printf("CTL HA peers have same ha_id %d\n", msg->login.ha_id); 1351 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1352 return; 1353 } 1354 if (msg->login.max_luns != ctl_max_luns || 1355 msg->login.max_ports != ctl_max_ports || 1356 msg->login.max_init_per_port != CTL_MAX_INIT_PER_PORT) { 1357 printf("CTL HA peers have different limits\n"); 1358 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1359 return; 1360 } 1361} 1362 1363static void 1364ctl_isc_mode_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1365{ 1366 struct ctl_lun *lun; 1367 u_int i; 1368 uint32_t initidx, targ_lun; 1369 1370 targ_lun = msg->hdr.nexus.targ_mapped_lun; 1371 mtx_lock(&softc->ctl_lock); 1372 if (targ_lun >= ctl_max_luns || 1373 (lun = softc->ctl_luns[targ_lun]) == NULL) { 1374 mtx_unlock(&softc->ctl_lock); 1375 return; 1376 } 1377 mtx_lock(&lun->lun_lock); 1378 mtx_unlock(&softc->ctl_lock); 1379 if (lun->flags & CTL_LUN_DISABLED) { 1380 mtx_unlock(&lun->lun_lock); 1381 return; 1382 } 1383 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 1384 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) == 1385 msg->mode.page_code && 1386 lun->mode_pages.index[i].subpage == msg->mode.subpage) 1387 break; 1388 } 1389 if (i == CTL_NUM_MODE_PAGES) { 1390 mtx_unlock(&lun->lun_lock); 1391 return; 1392 } 1393 memcpy(lun->mode_pages.index[i].page_data, msg->mode.data, 1394 lun->mode_pages.index[i].page_len); 1395 initidx = ctl_get_initindex(&msg->hdr.nexus); 1396 if (initidx != -1) 1397 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 1398 mtx_unlock(&lun->lun_lock); 1399} 1400 1401/* 1402 * ISC (Inter Shelf Communication) event handler. Events from the HA 1403 * subsystem come in here. 1404 */ 1405static void 1406ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 1407{ 1408 struct ctl_softc *softc = control_softc; 1409 union ctl_io *io; 1410 struct ctl_prio *presio; 1411 ctl_ha_status isc_status; 1412 1413 CTL_DEBUG_PRINT(("CTL: Isc Msg event %d\n", event)); 1414 if (event == CTL_HA_EVT_MSG_RECV) { 1415 union ctl_ha_msg *msg, msgbuf; 1416 1417 if (param > sizeof(msgbuf)) 1418 msg = malloc(param, M_CTL, M_WAITOK); 1419 else 1420 msg = &msgbuf; 1421 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, msg, param, 1422 M_WAITOK); 1423 if (isc_status != CTL_HA_STATUS_SUCCESS) { 1424 printf("%s: Error receiving message: %d\n", 1425 __func__, isc_status); 1426 if (msg != &msgbuf) 1427 free(msg, M_CTL); 1428 return; 1429 } 1430 1431 CTL_DEBUG_PRINT(("CTL: msg_type %d\n", msg->msg_type)); 1432 switch (msg->hdr.msg_type) { 1433 case CTL_MSG_SERIALIZE: 1434 io = ctl_alloc_io(softc->othersc_pool); 1435 ctl_zero_io(io); 1436 // populate ctsio from msg 1437 io->io_hdr.io_type = CTL_IO_SCSI; 1438 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 1439 io->io_hdr.remote_io = msg->hdr.original_sc; 1440 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 1441 CTL_FLAG_IO_ACTIVE; 1442 /* 1443 * If we're in serialization-only mode, we don't 1444 * want to go through full done processing. Thus 1445 * the COPY flag. 1446 * 1447 * XXX KDM add another flag that is more specific. 1448 */ 1449 if (softc->ha_mode != CTL_HA_MODE_XFER) 1450 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 1451 io->io_hdr.nexus = msg->hdr.nexus; 1452 io->scsiio.tag_num = msg->scsi.tag_num; 1453 io->scsiio.tag_type = msg->scsi.tag_type; 1454#ifdef CTL_TIME_IO 1455 io->io_hdr.start_time = time_uptime; 1456 getbinuptime(&io->io_hdr.start_bt); 1457#endif /* CTL_TIME_IO */ 1458 io->scsiio.cdb_len = msg->scsi.cdb_len; 1459 memcpy(io->scsiio.cdb, msg->scsi.cdb, 1460 CTL_MAX_CDBLEN); 1461 if (softc->ha_mode == CTL_HA_MODE_XFER) { 1462 const struct ctl_cmd_entry *entry; 1463 1464 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 1465 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 1466 io->io_hdr.flags |= 1467 entry->flags & CTL_FLAG_DATA_MASK; 1468 } 1469 ctl_enqueue_isc(io); 1470 break; 1471 1472 /* Performed on the Originating SC, XFER mode only */ 1473 case CTL_MSG_DATAMOVE: { 1474 struct ctl_sg_entry *sgl; 1475 int i, j; 1476 1477 io = msg->hdr.original_sc; 1478 if (io == NULL) { 1479 printf("%s: original_sc == NULL!\n", __func__); 1480 /* XXX KDM do something here */ 1481 break; 1482 } 1483 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 1484 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1485 /* 1486 * Keep track of this, we need to send it back over 1487 * when the datamove is complete. 1488 */ 1489 io->io_hdr.remote_io = msg->hdr.serializing_sc; 1490 if (msg->hdr.status == CTL_SUCCESS) 1491 io->io_hdr.status = msg->hdr.status; 1492 1493 if (msg->dt.sg_sequence == 0) { 1494#ifdef CTL_TIME_IO 1495 getbinuptime(&io->io_hdr.dma_start_bt); 1496#endif 1497 i = msg->dt.kern_sg_entries + 1498 msg->dt.kern_data_len / 1499 CTL_HA_DATAMOVE_SEGMENT + 1; 1500 sgl = malloc(sizeof(*sgl) * i, M_CTL, 1501 M_WAITOK | M_ZERO); 1502 CTL_RSGL(io) = sgl; 1503 CTL_LSGL(io) = &sgl[msg->dt.kern_sg_entries]; 1504 1505 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 1506 1507 io->scsiio.kern_sg_entries = 1508 msg->dt.kern_sg_entries; 1509 io->scsiio.rem_sg_entries = 1510 msg->dt.kern_sg_entries; 1511 io->scsiio.kern_data_len = 1512 msg->dt.kern_data_len; 1513 io->scsiio.kern_total_len = 1514 msg->dt.kern_total_len; 1515 io->scsiio.kern_data_resid = 1516 msg->dt.kern_data_resid; 1517 io->scsiio.kern_rel_offset = 1518 msg->dt.kern_rel_offset; 1519 io->io_hdr.flags &= ~CTL_FLAG_BUS_ADDR; 1520 io->io_hdr.flags |= msg->dt.flags & 1521 CTL_FLAG_BUS_ADDR; 1522 } else 1523 sgl = (struct ctl_sg_entry *) 1524 io->scsiio.kern_data_ptr; 1525 1526 for (i = msg->dt.sent_sg_entries, j = 0; 1527 i < (msg->dt.sent_sg_entries + 1528 msg->dt.cur_sg_entries); i++, j++) { 1529 sgl[i].addr = msg->dt.sg_list[j].addr; 1530 sgl[i].len = msg->dt.sg_list[j].len; 1531 } 1532 1533 /* 1534 * If this is the last piece of the I/O, we've got 1535 * the full S/G list. Queue processing in the thread. 1536 * Otherwise wait for the next piece. 1537 */ 1538 if (msg->dt.sg_last != 0) 1539 ctl_enqueue_isc(io); 1540 break; 1541 } 1542 /* Performed on the Serializing (primary) SC, XFER mode only */ 1543 case CTL_MSG_DATAMOVE_DONE: { 1544 if (msg->hdr.serializing_sc == NULL) { 1545 printf("%s: serializing_sc == NULL!\n", 1546 __func__); 1547 /* XXX KDM now what? */ 1548 break; 1549 } 1550 /* 1551 * We grab the sense information here in case 1552 * there was a failure, so we can return status 1553 * back to the initiator. 1554 */ 1555 io = msg->hdr.serializing_sc; 1556 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 1557 io->io_hdr.flags &= ~CTL_FLAG_DMA_INPROG; 1558 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1559 io->io_hdr.port_status = msg->scsi.port_status; 1560 io->scsiio.kern_data_resid = msg->scsi.kern_data_resid; 1561 if (msg->hdr.status != CTL_STATUS_NONE) { 1562 io->io_hdr.status = msg->hdr.status; 1563 io->scsiio.scsi_status = msg->scsi.scsi_status; 1564 io->scsiio.sense_len = msg->scsi.sense_len; 1565 memcpy(&io->scsiio.sense_data, 1566 &msg->scsi.sense_data, 1567 msg->scsi.sense_len); 1568 if (msg->hdr.status == CTL_SUCCESS) 1569 io->io_hdr.flags |= CTL_FLAG_STATUS_SENT; 1570 } 1571 ctl_enqueue_isc(io); 1572 break; 1573 } 1574 1575 /* Preformed on Originating SC, SER_ONLY mode */ 1576 case CTL_MSG_R2R: 1577 io = msg->hdr.original_sc; 1578 if (io == NULL) { 1579 printf("%s: original_sc == NULL!\n", 1580 __func__); 1581 break; 1582 } 1583 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1584 io->io_hdr.msg_type = CTL_MSG_R2R; 1585 io->io_hdr.remote_io = msg->hdr.serializing_sc; 1586 ctl_enqueue_isc(io); 1587 break; 1588 1589 /* 1590 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 1591 * mode. 1592 * Performed on the Originating (i.e. secondary) SC in XFER 1593 * mode 1594 */ 1595 case CTL_MSG_FINISH_IO: 1596 if (softc->ha_mode == CTL_HA_MODE_XFER) 1597 ctl_isc_handler_finish_xfer(softc, msg); 1598 else 1599 ctl_isc_handler_finish_ser_only(softc, msg); 1600 break; 1601 1602 /* Preformed on Originating SC */ 1603 case CTL_MSG_BAD_JUJU: 1604 io = msg->hdr.original_sc; 1605 if (io == NULL) { 1606 printf("%s: Bad JUJU!, original_sc is NULL!\n", 1607 __func__); 1608 break; 1609 } 1610 ctl_copy_sense_data(msg, io); 1611 /* 1612 * IO should have already been cleaned up on other 1613 * SC so clear this flag so we won't send a message 1614 * back to finish the IO there. 1615 */ 1616 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 1617 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1618 1619 /* io = msg->hdr.serializing_sc; */ 1620 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 1621 ctl_enqueue_isc(io); 1622 break; 1623 1624 /* Handle resets sent from the other side */ 1625 case CTL_MSG_MANAGE_TASKS: { 1626 struct ctl_taskio *taskio; 1627 taskio = (struct ctl_taskio *)ctl_alloc_io( 1628 softc->othersc_pool); 1629 ctl_zero_io((union ctl_io *)taskio); 1630 taskio->io_hdr.io_type = CTL_IO_TASK; 1631 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1632 taskio->io_hdr.nexus = msg->hdr.nexus; 1633 taskio->task_action = msg->task.task_action; 1634 taskio->tag_num = msg->task.tag_num; 1635 taskio->tag_type = msg->task.tag_type; 1636#ifdef CTL_TIME_IO 1637 taskio->io_hdr.start_time = time_uptime; 1638 getbinuptime(&taskio->io_hdr.start_bt); 1639#endif /* CTL_TIME_IO */ 1640 ctl_run_task((union ctl_io *)taskio); 1641 break; 1642 } 1643 /* Persistent Reserve action which needs attention */ 1644 case CTL_MSG_PERS_ACTION: 1645 presio = (struct ctl_prio *)ctl_alloc_io( 1646 softc->othersc_pool); 1647 ctl_zero_io((union ctl_io *)presio); 1648 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 1649 presio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1650 presio->io_hdr.nexus = msg->hdr.nexus; 1651 presio->pr_msg = msg->pr; 1652 ctl_enqueue_isc((union ctl_io *)presio); 1653 break; 1654 case CTL_MSG_UA: 1655 ctl_isc_ua(softc, msg, param); 1656 break; 1657 case CTL_MSG_PORT_SYNC: 1658 ctl_isc_port_sync(softc, msg, param); 1659 break; 1660 case CTL_MSG_LUN_SYNC: 1661 ctl_isc_lun_sync(softc, msg, param); 1662 break; 1663 case CTL_MSG_IID_SYNC: 1664 ctl_isc_iid_sync(softc, msg, param); 1665 break; 1666 case CTL_MSG_LOGIN: 1667 ctl_isc_login(softc, msg, param); 1668 break; 1669 case CTL_MSG_MODE_SYNC: 1670 ctl_isc_mode_sync(softc, msg, param); 1671 break; 1672 default: 1673 printf("Received HA message of unknown type %d\n", 1674 msg->hdr.msg_type); 1675 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1676 break; 1677 } 1678 if (msg != &msgbuf) 1679 free(msg, M_CTL); 1680 } else if (event == CTL_HA_EVT_LINK_CHANGE) { 1681 printf("CTL: HA link status changed from %d to %d\n", 1682 softc->ha_link, param); 1683 if (param == softc->ha_link) 1684 return; 1685 if (softc->ha_link == CTL_HA_LINK_ONLINE) { 1686 softc->ha_link = param; 1687 ctl_isc_ha_link_down(softc); 1688 } else { 1689 softc->ha_link = param; 1690 if (softc->ha_link == CTL_HA_LINK_ONLINE) 1691 ctl_isc_ha_link_up(softc); 1692 } 1693 return; 1694 } else { 1695 printf("ctl_isc_event_handler: Unknown event %d\n", event); 1696 return; 1697 } 1698} 1699 1700static void 1701ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 1702{ 1703 1704 memcpy(&dest->scsiio.sense_data, &src->scsi.sense_data, 1705 src->scsi.sense_len); 1706 dest->scsiio.scsi_status = src->scsi.scsi_status; 1707 dest->scsiio.sense_len = src->scsi.sense_len; 1708 dest->io_hdr.status = src->hdr.status; 1709} 1710 1711static void 1712ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest) 1713{ 1714 1715 memcpy(&dest->scsi.sense_data, &src->scsiio.sense_data, 1716 src->scsiio.sense_len); 1717 dest->scsi.scsi_status = src->scsiio.scsi_status; 1718 dest->scsi.sense_len = src->scsiio.sense_len; 1719 dest->hdr.status = src->io_hdr.status; 1720} 1721 1722void 1723ctl_est_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1724{ 1725 struct ctl_softc *softc = lun->ctl_softc; 1726 ctl_ua_type *pu; 1727 1728 if (initidx < softc->init_min || initidx >= softc->init_max) 1729 return; 1730 mtx_assert(&lun->lun_lock, MA_OWNED); 1731 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1732 if (pu == NULL) 1733 return; 1734 pu[initidx % CTL_MAX_INIT_PER_PORT] |= ua; 1735} 1736 1737void 1738ctl_est_ua_port(struct ctl_lun *lun, int port, uint32_t except, ctl_ua_type ua) 1739{ 1740 int i; 1741 1742 mtx_assert(&lun->lun_lock, MA_OWNED); 1743 if (lun->pending_ua[port] == NULL) 1744 return; 1745 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1746 if (port * CTL_MAX_INIT_PER_PORT + i == except) 1747 continue; 1748 lun->pending_ua[port][i] |= ua; 1749 } 1750} 1751 1752void 1753ctl_est_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1754{ 1755 struct ctl_softc *softc = lun->ctl_softc; 1756 int i; 1757 1758 mtx_assert(&lun->lun_lock, MA_OWNED); 1759 for (i = softc->port_min; i < softc->port_max; i++) 1760 ctl_est_ua_port(lun, i, except, ua); 1761} 1762 1763void 1764ctl_clr_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1765{ 1766 struct ctl_softc *softc = lun->ctl_softc; 1767 ctl_ua_type *pu; 1768 1769 if (initidx < softc->init_min || initidx >= softc->init_max) 1770 return; 1771 mtx_assert(&lun->lun_lock, MA_OWNED); 1772 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1773 if (pu == NULL) 1774 return; 1775 pu[initidx % CTL_MAX_INIT_PER_PORT] &= ~ua; 1776} 1777 1778void 1779ctl_clr_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1780{ 1781 struct ctl_softc *softc = lun->ctl_softc; 1782 int i, j; 1783 1784 mtx_assert(&lun->lun_lock, MA_OWNED); 1785 for (i = softc->port_min; i < softc->port_max; i++) { 1786 if (lun->pending_ua[i] == NULL) 1787 continue; 1788 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 1789 if (i * CTL_MAX_INIT_PER_PORT + j == except) 1790 continue; 1791 lun->pending_ua[i][j] &= ~ua; 1792 } 1793 } 1794} 1795 1796void 1797ctl_clr_ua_allluns(struct ctl_softc *ctl_softc, uint32_t initidx, 1798 ctl_ua_type ua_type) 1799{ 1800 struct ctl_lun *lun; 1801 1802 mtx_assert(&ctl_softc->ctl_lock, MA_OWNED); 1803 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) { 1804 mtx_lock(&lun->lun_lock); 1805 ctl_clr_ua(lun, initidx, ua_type); 1806 mtx_unlock(&lun->lun_lock); 1807 } 1808} 1809 1810static int 1811ctl_ha_role_sysctl(SYSCTL_HANDLER_ARGS) 1812{ 1813 struct ctl_softc *softc = (struct ctl_softc *)arg1; 1814 struct ctl_lun *lun; 1815 struct ctl_lun_req ireq; 1816 int error, value; 1817 1818 value = (softc->flags & CTL_FLAG_ACTIVE_SHELF) ? 0 : 1; 1819 error = sysctl_handle_int(oidp, &value, 0, req); 1820 if ((error != 0) || (req->newptr == NULL)) 1821 return (error); 1822 1823 mtx_lock(&softc->ctl_lock); 1824 if (value == 0) 1825 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1826 else 1827 softc->flags &= ~CTL_FLAG_ACTIVE_SHELF; 1828 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1829 mtx_unlock(&softc->ctl_lock); 1830 bzero(&ireq, sizeof(ireq)); 1831 ireq.reqtype = CTL_LUNREQ_MODIFY; 1832 ireq.reqdata.modify.lun_id = lun->lun; 1833 lun->backend->ioctl(NULL, CTL_LUN_REQ, (caddr_t)&ireq, 0, 1834 curthread); 1835 if (ireq.status != CTL_LUN_OK) { 1836 printf("%s: CTL_LUNREQ_MODIFY returned %d '%s'\n", 1837 __func__, ireq.status, ireq.error_str); 1838 } 1839 mtx_lock(&softc->ctl_lock); 1840 } 1841 mtx_unlock(&softc->ctl_lock); 1842 return (0); 1843} 1844 1845static int 1846ctl_init(void) 1847{ 1848 struct make_dev_args args; 1849 struct ctl_softc *softc; 1850 int i, error; 1851 1852 softc = control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 1853 M_WAITOK | M_ZERO); 1854 1855 make_dev_args_init(&args); 1856 args.mda_devsw = &ctl_cdevsw; 1857 args.mda_uid = UID_ROOT; 1858 args.mda_gid = GID_OPERATOR; 1859 args.mda_mode = 0600; 1860 args.mda_si_drv1 = softc; 1861 error = make_dev_s(&args, &softc->dev, "cam/ctl"); 1862 if (error != 0) { 1863 free(softc, M_DEVBUF); 1864 control_softc = NULL; 1865 return (error); 1866 } 1867 1868 sysctl_ctx_init(&softc->sysctl_ctx); 1869 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1870 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 1871 CTLFLAG_RD, 0, "CAM Target Layer"); 1872 1873 if (softc->sysctl_tree == NULL) { 1874 printf("%s: unable to allocate sysctl tree\n", __func__); 1875 destroy_dev(softc->dev); 1876 free(softc, M_DEVBUF); 1877 control_softc = NULL; 1878 return (ENOMEM); 1879 } 1880 1881 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 1882 softc->io_zone = uma_zcreate("CTL IO", sizeof(union ctl_io), 1883 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); 1884 softc->flags = 0; 1885 1886 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1887 OID_AUTO, "ha_mode", CTLFLAG_RDTUN, (int *)&softc->ha_mode, 0, 1888 "HA mode (0 - act/stby, 1 - serialize only, 2 - xfer)"); 1889 1890 if (ctl_max_luns <= 0 || powerof2(ctl_max_luns) == 0) { 1891 printf("Bad value %d for kern.cam.ctl.max_luns, must be a power of two, using %d\n", 1892 ctl_max_luns, CTL_DEFAULT_MAX_LUNS); 1893 ctl_max_luns = CTL_DEFAULT_MAX_LUNS; 1894 } 1895 softc->ctl_luns = malloc(sizeof(struct ctl_lun *) * ctl_max_luns, 1896 M_DEVBUF, M_WAITOK | M_ZERO); 1897 softc->ctl_lun_mask = malloc(sizeof(uint32_t) * 1898 ((ctl_max_luns + 31) / 32), M_DEVBUF, M_WAITOK | M_ZERO); 1899 if (ctl_max_ports <= 0 || powerof2(ctl_max_ports) == 0) { 1900 printf("Bad value %d for kern.cam.ctl.max_ports, must be a power of two, using %d\n", 1901 ctl_max_ports, CTL_DEFAULT_MAX_PORTS); 1902 ctl_max_ports = CTL_DEFAULT_MAX_PORTS; 1903 } 1904 softc->ctl_port_mask = malloc(sizeof(uint32_t) * 1905 ((ctl_max_ports + 31) / 32), M_DEVBUF, M_WAITOK | M_ZERO); 1906 softc->ctl_ports = malloc(sizeof(struct ctl_port *) * ctl_max_ports, 1907 M_DEVBUF, M_WAITOK | M_ZERO); 1908 1909 1910 /* 1911 * In Copan's HA scheme, the "master" and "slave" roles are 1912 * figured out through the slot the controller is in. Although it 1913 * is an active/active system, someone has to be in charge. 1914 */ 1915 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1916 OID_AUTO, "ha_id", CTLFLAG_RDTUN, &softc->ha_id, 0, 1917 "HA head ID (0 - no HA)"); 1918 if (softc->ha_id == 0 || softc->ha_id > NUM_HA_SHELVES) { 1919 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1920 softc->is_single = 1; 1921 softc->port_cnt = ctl_max_ports; 1922 softc->port_min = 0; 1923 } else { 1924 softc->port_cnt = ctl_max_ports / NUM_HA_SHELVES; 1925 softc->port_min = (softc->ha_id - 1) * softc->port_cnt; 1926 } 1927 softc->port_max = softc->port_min + softc->port_cnt; 1928 softc->init_min = softc->port_min * CTL_MAX_INIT_PER_PORT; 1929 softc->init_max = softc->port_max * CTL_MAX_INIT_PER_PORT; 1930 1931 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1932 OID_AUTO, "ha_link", CTLFLAG_RD, (int *)&softc->ha_link, 0, 1933 "HA link state (0 - offline, 1 - unknown, 2 - online)"); 1934 1935 STAILQ_INIT(&softc->lun_list); 1936 STAILQ_INIT(&softc->fe_list); 1937 STAILQ_INIT(&softc->port_list); 1938 STAILQ_INIT(&softc->be_list); 1939 ctl_tpc_init(softc); 1940 1941 if (worker_threads <= 0) 1942 worker_threads = max(1, mp_ncpus / 4); 1943 if (worker_threads > CTL_MAX_THREADS) 1944 worker_threads = CTL_MAX_THREADS; 1945 1946 for (i = 0; i < worker_threads; i++) { 1947 struct ctl_thread *thr = &softc->threads[i]; 1948 1949 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1950 thr->ctl_softc = softc; 1951 STAILQ_INIT(&thr->incoming_queue); 1952 STAILQ_INIT(&thr->rtr_queue); 1953 STAILQ_INIT(&thr->done_queue); 1954 STAILQ_INIT(&thr->isc_queue); 1955 1956 error = kproc_kthread_add(ctl_work_thread, thr, 1957 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1958 if (error != 0) { 1959 printf("error creating CTL work thread!\n"); 1960 return (error); 1961 } 1962 } 1963 error = kproc_kthread_add(ctl_thresh_thread, softc, 1964 &softc->ctl_proc, &softc->thresh_thread, 0, 0, "ctl", "thresh"); 1965 if (error != 0) { 1966 printf("error creating CTL threshold thread!\n"); 1967 return (error); 1968 } 1969 1970 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1971 OID_AUTO, "ha_role", CTLTYPE_INT | CTLFLAG_RWTUN, 1972 softc, 0, ctl_ha_role_sysctl, "I", "HA role for this head"); 1973 1974 if (softc->is_single == 0) { 1975 if (ctl_frontend_register(&ha_frontend) != 0) 1976 softc->is_single = 1; 1977 } 1978 return (0); 1979} 1980 1981static int 1982ctl_shutdown(void) 1983{ 1984 struct ctl_softc *softc = control_softc; 1985 int i; 1986 1987 if (softc->is_single == 0) 1988 ctl_frontend_deregister(&ha_frontend); 1989 1990 destroy_dev(softc->dev); 1991 1992 /* Shutdown CTL threads. */ 1993 softc->shutdown = 1; 1994 for (i = 0; i < worker_threads; i++) { 1995 struct ctl_thread *thr = &softc->threads[i]; 1996 while (thr->thread != NULL) { 1997 wakeup(thr); 1998 if (thr->thread != NULL) 1999 pause("CTL thr shutdown", 1); 2000 } 2001 mtx_destroy(&thr->queue_lock); 2002 } 2003 while (softc->thresh_thread != NULL) { 2004 wakeup(softc->thresh_thread); 2005 if (softc->thresh_thread != NULL) 2006 pause("CTL thr shutdown", 1); 2007 } 2008 2009 ctl_tpc_shutdown(softc); 2010 uma_zdestroy(softc->io_zone); 2011 mtx_destroy(&softc->ctl_lock); 2012 2013 free(softc->ctl_luns, M_DEVBUF); 2014 free(softc->ctl_lun_mask, M_DEVBUF); 2015 free(softc->ctl_port_mask, M_DEVBUF); 2016 free(softc->ctl_ports, M_DEVBUF); 2017 2018 sysctl_ctx_free(&softc->sysctl_ctx); 2019 2020 free(softc, M_DEVBUF); 2021 control_softc = NULL; 2022 return (0); 2023} 2024 2025static int 2026ctl_module_event_handler(module_t mod, int what, void *arg) 2027{ 2028 2029 switch (what) { 2030 case MOD_LOAD: 2031 return (ctl_init()); 2032 case MOD_UNLOAD: 2033 return (ctl_shutdown()); 2034 default: 2035 return (EOPNOTSUPP); 2036 } 2037} 2038 2039/* 2040 * XXX KDM should we do some access checks here? Bump a reference count to 2041 * prevent a CTL module from being unloaded while someone has it open? 2042 */ 2043static int 2044ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 2045{ 2046 return (0); 2047} 2048 2049static int 2050ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 2051{ 2052 return (0); 2053} 2054 2055/* 2056 * Remove an initiator by port number and initiator ID. 2057 * Returns 0 for success, -1 for failure. 2058 */ 2059int 2060ctl_remove_initiator(struct ctl_port *port, int iid) 2061{ 2062 struct ctl_softc *softc = port->ctl_softc; 2063 int last; 2064 2065 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 2066 2067 if (iid > CTL_MAX_INIT_PER_PORT) { 2068 printf("%s: initiator ID %u > maximun %u!\n", 2069 __func__, iid, CTL_MAX_INIT_PER_PORT); 2070 return (-1); 2071 } 2072 2073 mtx_lock(&softc->ctl_lock); 2074 last = (--port->wwpn_iid[iid].in_use == 0); 2075 port->wwpn_iid[iid].last_use = time_uptime; 2076 mtx_unlock(&softc->ctl_lock); 2077 if (last) 2078 ctl_i_t_nexus_loss(softc, iid, CTL_UA_POWERON); 2079 ctl_isc_announce_iid(port, iid); 2080 2081 return (0); 2082} 2083 2084/* 2085 * Add an initiator to the initiator map. 2086 * Returns iid for success, < 0 for failure. 2087 */ 2088int 2089ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 2090{ 2091 struct ctl_softc *softc = port->ctl_softc; 2092 time_t best_time; 2093 int i, best; 2094 2095 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 2096 2097 if (iid >= CTL_MAX_INIT_PER_PORT) { 2098 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 2099 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 2100 free(name, M_CTL); 2101 return (-1); 2102 } 2103 2104 mtx_lock(&softc->ctl_lock); 2105 2106 if (iid < 0 && (wwpn != 0 || name != NULL)) { 2107 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2108 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 2109 iid = i; 2110 break; 2111 } 2112 if (name != NULL && port->wwpn_iid[i].name != NULL && 2113 strcmp(name, port->wwpn_iid[i].name) == 0) { 2114 iid = i; 2115 break; 2116 } 2117 } 2118 } 2119 2120 if (iid < 0) { 2121 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2122 if (port->wwpn_iid[i].in_use == 0 && 2123 port->wwpn_iid[i].wwpn == 0 && 2124 port->wwpn_iid[i].name == NULL) { 2125 iid = i; 2126 break; 2127 } 2128 } 2129 } 2130 2131 if (iid < 0) { 2132 best = -1; 2133 best_time = INT32_MAX; 2134 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2135 if (port->wwpn_iid[i].in_use == 0) { 2136 if (port->wwpn_iid[i].last_use < best_time) { 2137 best = i; 2138 best_time = port->wwpn_iid[i].last_use; 2139 } 2140 } 2141 } 2142 iid = best; 2143 } 2144 2145 if (iid < 0) { 2146 mtx_unlock(&softc->ctl_lock); 2147 free(name, M_CTL); 2148 return (-2); 2149 } 2150 2151 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 2152 /* 2153 * This is not an error yet. 2154 */ 2155 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 2156#if 0 2157 printf("%s: port %d iid %u WWPN %#jx arrived" 2158 " again\n", __func__, port->targ_port, 2159 iid, (uintmax_t)wwpn); 2160#endif 2161 goto take; 2162 } 2163 if (name != NULL && port->wwpn_iid[iid].name != NULL && 2164 strcmp(name, port->wwpn_iid[iid].name) == 0) { 2165#if 0 2166 printf("%s: port %d iid %u name '%s' arrived" 2167 " again\n", __func__, port->targ_port, 2168 iid, name); 2169#endif 2170 goto take; 2171 } 2172 2173 /* 2174 * This is an error, but what do we do about it? The 2175 * driver is telling us we have a new WWPN for this 2176 * initiator ID, so we pretty much need to use it. 2177 */ 2178 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 2179 " but WWPN %#jx '%s' is still at that address\n", 2180 __func__, port->targ_port, iid, wwpn, name, 2181 (uintmax_t)port->wwpn_iid[iid].wwpn, 2182 port->wwpn_iid[iid].name); 2183 } 2184take: 2185 free(port->wwpn_iid[iid].name, M_CTL); 2186 port->wwpn_iid[iid].name = name; 2187 port->wwpn_iid[iid].wwpn = wwpn; 2188 port->wwpn_iid[iid].in_use++; 2189 mtx_unlock(&softc->ctl_lock); 2190 ctl_isc_announce_iid(port, iid); 2191 2192 return (iid); 2193} 2194 2195static int 2196ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 2197{ 2198 int len; 2199 2200 switch (port->port_type) { 2201 case CTL_PORT_FC: 2202 { 2203 struct scsi_transportid_fcp *id = 2204 (struct scsi_transportid_fcp *)buf; 2205 if (port->wwpn_iid[iid].wwpn == 0) 2206 return (0); 2207 memset(id, 0, sizeof(*id)); 2208 id->format_protocol = SCSI_PROTO_FC; 2209 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 2210 return (sizeof(*id)); 2211 } 2212 case CTL_PORT_ISCSI: 2213 { 2214 struct scsi_transportid_iscsi_port *id = 2215 (struct scsi_transportid_iscsi_port *)buf; 2216 if (port->wwpn_iid[iid].name == NULL) 2217 return (0); 2218 memset(id, 0, 256); 2219 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 2220 SCSI_PROTO_ISCSI; 2221 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 2222 len = roundup2(min(len, 252), 4); 2223 scsi_ulto2b(len, id->additional_length); 2224 return (sizeof(*id) + len); 2225 } 2226 case CTL_PORT_SAS: 2227 { 2228 struct scsi_transportid_sas *id = 2229 (struct scsi_transportid_sas *)buf; 2230 if (port->wwpn_iid[iid].wwpn == 0) 2231 return (0); 2232 memset(id, 0, sizeof(*id)); 2233 id->format_protocol = SCSI_PROTO_SAS; 2234 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 2235 return (sizeof(*id)); 2236 } 2237 default: 2238 { 2239 struct scsi_transportid_spi *id = 2240 (struct scsi_transportid_spi *)buf; 2241 memset(id, 0, sizeof(*id)); 2242 id->format_protocol = SCSI_PROTO_SPI; 2243 scsi_ulto2b(iid, id->scsi_addr); 2244 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 2245 return (sizeof(*id)); 2246 } 2247 } 2248} 2249 2250/* 2251 * Serialize a command that went down the "wrong" side, and so was sent to 2252 * this controller for execution. The logic is a little different than the 2253 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 2254 * sent back to the other side, but in the success case, we execute the 2255 * command on this side (XFER mode) or tell the other side to execute it 2256 * (SER_ONLY mode). 2257 */ 2258static void 2259ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 2260{ 2261 struct ctl_softc *softc = CTL_SOFTC(ctsio); 2262 struct ctl_port *port = CTL_PORT(ctsio); 2263 union ctl_ha_msg msg_info; 2264 struct ctl_lun *lun; 2265 const struct ctl_cmd_entry *entry; 2266 union ctl_io *bio; 2267 uint32_t targ_lun; 2268 2269 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 2270 2271 /* Make sure that we know about this port. */ 2272 if (port == NULL || (port->status & CTL_PORT_STATUS_ONLINE) == 0) { 2273 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 2274 /*retry_count*/ 1); 2275 goto badjuju; 2276 } 2277 2278 /* Make sure that we know about this LUN. */ 2279 mtx_lock(&softc->ctl_lock); 2280 if (targ_lun >= ctl_max_luns || 2281 (lun = softc->ctl_luns[targ_lun]) == NULL) { 2282 mtx_unlock(&softc->ctl_lock); 2283 2284 /* 2285 * The other node would not send this request to us unless 2286 * received announce that we are primary node for this LUN. 2287 * If this LUN does not exist now, it is probably result of 2288 * a race, so respond to initiator in the most opaque way. 2289 */ 2290 ctl_set_busy(ctsio); 2291 goto badjuju; 2292 } 2293 mtx_lock(&lun->lun_lock); 2294 mtx_unlock(&softc->ctl_lock); 2295 2296 /* 2297 * If the LUN is invalid, pretend that it doesn't exist. 2298 * It will go away as soon as all pending I/Os completed. 2299 */ 2300 if (lun->flags & CTL_LUN_DISABLED) { 2301 mtx_unlock(&lun->lun_lock); 2302 ctl_set_busy(ctsio); 2303 goto badjuju; 2304 } 2305 2306 entry = ctl_get_cmd_entry(ctsio, NULL); 2307 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 2308 mtx_unlock(&lun->lun_lock); 2309 goto badjuju; 2310 } 2311 2312 CTL_LUN(ctsio) = lun; 2313 CTL_BACKEND_LUN(ctsio) = lun->be_lun; 2314 2315 /* 2316 * Every I/O goes into the OOA queue for a 2317 * particular LUN, and stays there until completion. 2318 */ 2319#ifdef CTL_TIME_IO 2320 if (TAILQ_EMPTY(&lun->ooa_queue)) 2321 lun->idle_time += getsbinuptime() - lun->last_busy; 2322#endif 2323 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2324 2325 bio = (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, ooa_links); 2326 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, &bio)) { 2327 case CTL_ACTION_BLOCK: 2328 ctsio->io_hdr.blocker = bio; 2329 TAILQ_INSERT_TAIL(&bio->io_hdr.blocked_queue, &ctsio->io_hdr, 2330 blocked_links); 2331 mtx_unlock(&lun->lun_lock); 2332 break; 2333 case CTL_ACTION_PASS: 2334 case CTL_ACTION_SKIP: 2335 if (softc->ha_mode == CTL_HA_MODE_XFER) { 2336 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 2337 ctl_enqueue_rtr((union ctl_io *)ctsio); 2338 mtx_unlock(&lun->lun_lock); 2339 } else { 2340 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 2341 mtx_unlock(&lun->lun_lock); 2342 2343 /* send msg back to other side */ 2344 msg_info.hdr.original_sc = ctsio->io_hdr.remote_io; 2345 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 2346 msg_info.hdr.msg_type = CTL_MSG_R2R; 2347 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2348 sizeof(msg_info.hdr), M_WAITOK); 2349 } 2350 break; 2351 case CTL_ACTION_OVERLAP: 2352 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2353 mtx_unlock(&lun->lun_lock); 2354 ctl_set_overlapped_cmd(ctsio); 2355 goto badjuju; 2356 case CTL_ACTION_OVERLAP_TAG: 2357 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2358 mtx_unlock(&lun->lun_lock); 2359 ctl_set_overlapped_tag(ctsio, ctsio->tag_num); 2360 goto badjuju; 2361 case CTL_ACTION_ERROR: 2362 default: 2363 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2364 mtx_unlock(&lun->lun_lock); 2365 2366 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 2367 /*retry_count*/ 0); 2368badjuju: 2369 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 2370 msg_info.hdr.original_sc = ctsio->io_hdr.remote_io; 2371 msg_info.hdr.serializing_sc = NULL; 2372 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 2373 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2374 sizeof(msg_info.scsi), M_WAITOK); 2375 ctl_free_io((union ctl_io *)ctsio); 2376 break; 2377 } 2378} 2379 2380/* 2381 * Returns 0 for success, errno for failure. 2382 */ 2383static void 2384ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2385 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2386{ 2387 union ctl_io *io; 2388 2389 mtx_lock(&lun->lun_lock); 2390 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2391 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2392 ooa_links)) { 2393 struct ctl_ooa_entry *entry; 2394 2395 /* 2396 * If we've got more than we can fit, just count the 2397 * remaining entries. 2398 */ 2399 if (*cur_fill_num >= ooa_hdr->alloc_num) 2400 continue; 2401 2402 entry = &kern_entries[*cur_fill_num]; 2403 2404 entry->tag_num = io->scsiio.tag_num; 2405 entry->lun_num = lun->lun; 2406#ifdef CTL_TIME_IO 2407 entry->start_bt = io->io_hdr.start_bt; 2408#endif 2409 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2410 entry->cdb_len = io->scsiio.cdb_len; 2411 if (io->io_hdr.blocker != NULL) 2412 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2413 2414 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2415 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2416 2417 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2418 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2419 2420 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2421 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2422 2423 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2424 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2425 } 2426 mtx_unlock(&lun->lun_lock); 2427} 2428 2429static void * 2430ctl_copyin_alloc(void *user_addr, unsigned int len, char *error_str, 2431 size_t error_str_len) 2432{ 2433 void *kptr; 2434 2435 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2436 2437 if (copyin(user_addr, kptr, len) != 0) { 2438 snprintf(error_str, error_str_len, "Error copying %d bytes " 2439 "from user address %p to kernel address %p", len, 2440 user_addr, kptr); 2441 free(kptr, M_CTL); 2442 return (NULL); 2443 } 2444 2445 return (kptr); 2446} 2447 2448static void 2449ctl_free_args(int num_args, struct ctl_be_arg *args) 2450{ 2451 int i; 2452 2453 if (args == NULL) 2454 return; 2455 2456 for (i = 0; i < num_args; i++) { 2457 free(args[i].kname, M_CTL); 2458 free(args[i].kvalue, M_CTL); 2459 } 2460 2461 free(args, M_CTL); 2462} 2463 2464static struct ctl_be_arg * 2465ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2466 char *error_str, size_t error_str_len) 2467{ 2468 struct ctl_be_arg *args; 2469 int i; 2470 2471 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2472 error_str, error_str_len); 2473 2474 if (args == NULL) 2475 goto bailout; 2476 2477 for (i = 0; i < num_args; i++) { 2478 args[i].kname = NULL; 2479 args[i].kvalue = NULL; 2480 } 2481 2482 for (i = 0; i < num_args; i++) { 2483 uint8_t *tmpptr; 2484 2485 if (args[i].namelen == 0) { 2486 snprintf(error_str, error_str_len, "Argument %d " 2487 "name length is zero", i); 2488 goto bailout; 2489 } 2490 2491 args[i].kname = ctl_copyin_alloc(args[i].name, 2492 args[i].namelen, error_str, error_str_len); 2493 if (args[i].kname == NULL) 2494 goto bailout; 2495 2496 if (args[i].kname[args[i].namelen - 1] != '\0') { 2497 snprintf(error_str, error_str_len, "Argument %d " 2498 "name is not NUL-terminated", i); 2499 goto bailout; 2500 } 2501 2502 if (args[i].flags & CTL_BEARG_RD) { 2503 if (args[i].vallen == 0) { 2504 snprintf(error_str, error_str_len, "Argument %d " 2505 "value length is zero", i); 2506 goto bailout; 2507 } 2508 2509 tmpptr = ctl_copyin_alloc(args[i].value, 2510 args[i].vallen, error_str, error_str_len); 2511 if (tmpptr == NULL) 2512 goto bailout; 2513 2514 if ((args[i].flags & CTL_BEARG_ASCII) 2515 && (tmpptr[args[i].vallen - 1] != '\0')) { 2516 snprintf(error_str, error_str_len, "Argument " 2517 "%d value is not NUL-terminated", i); 2518 free(tmpptr, M_CTL); 2519 goto bailout; 2520 } 2521 args[i].kvalue = tmpptr; 2522 } else { 2523 args[i].kvalue = malloc(args[i].vallen, 2524 M_CTL, M_WAITOK | M_ZERO); 2525 } 2526 } 2527 2528 return (args); 2529bailout: 2530 2531 ctl_free_args(num_args, args); 2532 2533 return (NULL); 2534} 2535 2536static void 2537ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2538{ 2539 int i; 2540 2541 for (i = 0; i < num_args; i++) { 2542 if (args[i].flags & CTL_BEARG_WR) 2543 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2544 } 2545} 2546 2547/* 2548 * Escape characters that are illegal or not recommended in XML. 2549 */ 2550int 2551ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size) 2552{ 2553 char *end = str + size; 2554 int retval; 2555 2556 retval = 0; 2557 2558 for (; *str && str < end; str++) { 2559 switch (*str) { 2560 case '&': 2561 retval = sbuf_printf(sb, "&"); 2562 break; 2563 case '>': 2564 retval = sbuf_printf(sb, ">"); 2565 break; 2566 case '<': 2567 retval = sbuf_printf(sb, "<"); 2568 break; 2569 default: 2570 retval = sbuf_putc(sb, *str); 2571 break; 2572 } 2573 2574 if (retval != 0) 2575 break; 2576 2577 } 2578 2579 return (retval); 2580} 2581 2582static void 2583ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2584{ 2585 struct scsi_vpd_id_descriptor *desc; 2586 int i; 2587 2588 if (id == NULL || id->len < 4) 2589 return; 2590 desc = (struct scsi_vpd_id_descriptor *)id->data; 2591 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2592 case SVPD_ID_TYPE_T10: 2593 sbuf_printf(sb, "t10."); 2594 break; 2595 case SVPD_ID_TYPE_EUI64: 2596 sbuf_printf(sb, "eui."); 2597 break; 2598 case SVPD_ID_TYPE_NAA: 2599 sbuf_printf(sb, "naa."); 2600 break; 2601 case SVPD_ID_TYPE_SCSI_NAME: 2602 break; 2603 } 2604 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2605 case SVPD_ID_CODESET_BINARY: 2606 for (i = 0; i < desc->length; i++) 2607 sbuf_printf(sb, "%02x", desc->identifier[i]); 2608 break; 2609 case SVPD_ID_CODESET_ASCII: 2610 sbuf_printf(sb, "%.*s", (int)desc->length, 2611 (char *)desc->identifier); 2612 break; 2613 case SVPD_ID_CODESET_UTF8: 2614 sbuf_printf(sb, "%s", (char *)desc->identifier); 2615 break; 2616 } 2617} 2618 2619static int 2620ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2621 struct thread *td) 2622{ 2623 struct ctl_softc *softc = dev->si_drv1; 2624 struct ctl_port *port; 2625 struct ctl_lun *lun; 2626 int retval; 2627 2628 retval = 0; 2629 2630 switch (cmd) { 2631 case CTL_IO: 2632 retval = ctl_ioctl_io(dev, cmd, addr, flag, td); 2633 break; 2634 case CTL_ENABLE_PORT: 2635 case CTL_DISABLE_PORT: 2636 case CTL_SET_PORT_WWNS: { 2637 struct ctl_port *port; 2638 struct ctl_port_entry *entry; 2639 2640 entry = (struct ctl_port_entry *)addr; 2641 2642 mtx_lock(&softc->ctl_lock); 2643 STAILQ_FOREACH(port, &softc->port_list, links) { 2644 int action, done; 2645 2646 if (port->targ_port < softc->port_min || 2647 port->targ_port >= softc->port_max) 2648 continue; 2649 2650 action = 0; 2651 done = 0; 2652 if ((entry->port_type == CTL_PORT_NONE) 2653 && (entry->targ_port == port->targ_port)) { 2654 /* 2655 * If the user only wants to enable or 2656 * disable or set WWNs on a specific port, 2657 * do the operation and we're done. 2658 */ 2659 action = 1; 2660 done = 1; 2661 } else if (entry->port_type & port->port_type) { 2662 /* 2663 * Compare the user's type mask with the 2664 * particular frontend type to see if we 2665 * have a match. 2666 */ 2667 action = 1; 2668 done = 0; 2669 2670 /* 2671 * Make sure the user isn't trying to set 2672 * WWNs on multiple ports at the same time. 2673 */ 2674 if (cmd == CTL_SET_PORT_WWNS) { 2675 printf("%s: Can't set WWNs on " 2676 "multiple ports\n", __func__); 2677 retval = EINVAL; 2678 break; 2679 } 2680 } 2681 if (action == 0) 2682 continue; 2683 2684 /* 2685 * XXX KDM we have to drop the lock here, because 2686 * the online/offline operations can potentially 2687 * block. We need to reference count the frontends 2688 * so they can't go away, 2689 */ 2690 if (cmd == CTL_ENABLE_PORT) { 2691 mtx_unlock(&softc->ctl_lock); 2692 ctl_port_online(port); 2693 mtx_lock(&softc->ctl_lock); 2694 } else if (cmd == CTL_DISABLE_PORT) { 2695 mtx_unlock(&softc->ctl_lock); 2696 ctl_port_offline(port); 2697 mtx_lock(&softc->ctl_lock); 2698 } else if (cmd == CTL_SET_PORT_WWNS) { 2699 ctl_port_set_wwns(port, 2700 (entry->flags & CTL_PORT_WWNN_VALID) ? 2701 1 : 0, entry->wwnn, 2702 (entry->flags & CTL_PORT_WWPN_VALID) ? 2703 1 : 0, entry->wwpn); 2704 } 2705 if (done != 0) 2706 break; 2707 } 2708 mtx_unlock(&softc->ctl_lock); 2709 break; 2710 } 2711 case CTL_GET_OOA: { 2712 struct ctl_ooa *ooa_hdr; 2713 struct ctl_ooa_entry *entries; 2714 uint32_t cur_fill_num; 2715 2716 ooa_hdr = (struct ctl_ooa *)addr; 2717 2718 if ((ooa_hdr->alloc_len == 0) 2719 || (ooa_hdr->alloc_num == 0)) { 2720 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2721 "must be non-zero\n", __func__, 2722 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2723 retval = EINVAL; 2724 break; 2725 } 2726 2727 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2728 sizeof(struct ctl_ooa_entry))) { 2729 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2730 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2731 __func__, ooa_hdr->alloc_len, 2732 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2733 retval = EINVAL; 2734 break; 2735 } 2736 2737 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2738 if (entries == NULL) { 2739 printf("%s: could not allocate %d bytes for OOA " 2740 "dump\n", __func__, ooa_hdr->alloc_len); 2741 retval = ENOMEM; 2742 break; 2743 } 2744 2745 mtx_lock(&softc->ctl_lock); 2746 if ((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0 && 2747 (ooa_hdr->lun_num >= ctl_max_luns || 2748 softc->ctl_luns[ooa_hdr->lun_num] == NULL)) { 2749 mtx_unlock(&softc->ctl_lock); 2750 free(entries, M_CTL); 2751 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2752 __func__, (uintmax_t)ooa_hdr->lun_num); 2753 retval = EINVAL; 2754 break; 2755 } 2756 2757 cur_fill_num = 0; 2758 2759 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2760 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2761 ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2762 ooa_hdr, entries); 2763 } 2764 } else { 2765 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2766 ctl_ioctl_fill_ooa(lun, &cur_fill_num, ooa_hdr, 2767 entries); 2768 } 2769 mtx_unlock(&softc->ctl_lock); 2770 2771 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2772 ooa_hdr->fill_len = ooa_hdr->fill_num * 2773 sizeof(struct ctl_ooa_entry); 2774 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2775 if (retval != 0) { 2776 printf("%s: error copying out %d bytes for OOA dump\n", 2777 __func__, ooa_hdr->fill_len); 2778 } 2779 2780 getbinuptime(&ooa_hdr->cur_bt); 2781 2782 if (cur_fill_num > ooa_hdr->alloc_num) { 2783 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2784 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2785 } else { 2786 ooa_hdr->dropped_num = 0; 2787 ooa_hdr->status = CTL_OOA_OK; 2788 } 2789 2790 free(entries, M_CTL); 2791 break; 2792 } 2793 case CTL_DELAY_IO: { 2794 struct ctl_io_delay_info *delay_info; 2795 2796 delay_info = (struct ctl_io_delay_info *)addr; 2797 2798#ifdef CTL_IO_DELAY 2799 mtx_lock(&softc->ctl_lock); 2800 if (delay_info->lun_id >= ctl_max_luns || 2801 (lun = softc->ctl_luns[delay_info->lun_id]) == NULL) { 2802 mtx_unlock(&softc->ctl_lock); 2803 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2804 break; 2805 } 2806 mtx_lock(&lun->lun_lock); 2807 mtx_unlock(&softc->ctl_lock); 2808 delay_info->status = CTL_DELAY_STATUS_OK; 2809 switch (delay_info->delay_type) { 2810 case CTL_DELAY_TYPE_CONT: 2811 case CTL_DELAY_TYPE_ONESHOT: 2812 break; 2813 default: 2814 delay_info->status = CTL_DELAY_STATUS_INVALID_TYPE; 2815 break; 2816 } 2817 switch (delay_info->delay_loc) { 2818 case CTL_DELAY_LOC_DATAMOVE: 2819 lun->delay_info.datamove_type = delay_info->delay_type; 2820 lun->delay_info.datamove_delay = delay_info->delay_secs; 2821 break; 2822 case CTL_DELAY_LOC_DONE: 2823 lun->delay_info.done_type = delay_info->delay_type; 2824 lun->delay_info.done_delay = delay_info->delay_secs; 2825 break; 2826 default: 2827 delay_info->status = CTL_DELAY_STATUS_INVALID_LOC; 2828 break; 2829 } 2830 mtx_unlock(&lun->lun_lock); 2831#else 2832 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2833#endif /* CTL_IO_DELAY */ 2834 break; 2835 } 2836#ifdef CTL_LEGACY_STATS 2837 case CTL_GETSTATS: { 2838 struct ctl_stats *stats = (struct ctl_stats *)addr; 2839 int i; 2840 2841 /* 2842 * XXX KDM no locking here. If the LUN list changes, 2843 * things can blow up. 2844 */ 2845 i = 0; 2846 stats->status = CTL_SS_OK; 2847 stats->fill_len = 0; 2848 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2849 if (stats->fill_len + sizeof(lun->legacy_stats) > 2850 stats->alloc_len) { 2851 stats->status = CTL_SS_NEED_MORE_SPACE; 2852 break; 2853 } 2854 retval = copyout(&lun->legacy_stats, &stats->lun_stats[i++], 2855 sizeof(lun->legacy_stats)); 2856 if (retval != 0) 2857 break; 2858 stats->fill_len += sizeof(lun->legacy_stats); 2859 } 2860 stats->num_luns = softc->num_luns; 2861 stats->flags = CTL_STATS_FLAG_NONE; 2862#ifdef CTL_TIME_IO 2863 stats->flags |= CTL_STATS_FLAG_TIME_VALID; 2864#endif 2865 getnanouptime(&stats->timestamp); 2866 break; 2867 } 2868#endif /* CTL_LEGACY_STATS */ 2869 case CTL_ERROR_INJECT: { 2870 struct ctl_error_desc *err_desc, *new_err_desc; 2871 2872 err_desc = (struct ctl_error_desc *)addr; 2873 2874 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2875 M_WAITOK | M_ZERO); 2876 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2877 2878 mtx_lock(&softc->ctl_lock); 2879 if (err_desc->lun_id >= ctl_max_luns || 2880 (lun = softc->ctl_luns[err_desc->lun_id]) == NULL) { 2881 mtx_unlock(&softc->ctl_lock); 2882 free(new_err_desc, M_CTL); 2883 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2884 __func__, (uintmax_t)err_desc->lun_id); 2885 retval = EINVAL; 2886 break; 2887 } 2888 mtx_lock(&lun->lun_lock); 2889 mtx_unlock(&softc->ctl_lock); 2890 2891 /* 2892 * We could do some checking here to verify the validity 2893 * of the request, but given the complexity of error 2894 * injection requests, the checking logic would be fairly 2895 * complex. 2896 * 2897 * For now, if the request is invalid, it just won't get 2898 * executed and might get deleted. 2899 */ 2900 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2901 2902 /* 2903 * XXX KDM check to make sure the serial number is unique, 2904 * in case we somehow manage to wrap. That shouldn't 2905 * happen for a very long time, but it's the right thing to 2906 * do. 2907 */ 2908 new_err_desc->serial = lun->error_serial; 2909 err_desc->serial = lun->error_serial; 2910 lun->error_serial++; 2911 2912 mtx_unlock(&lun->lun_lock); 2913 break; 2914 } 2915 case CTL_ERROR_INJECT_DELETE: { 2916 struct ctl_error_desc *delete_desc, *desc, *desc2; 2917 int delete_done; 2918 2919 delete_desc = (struct ctl_error_desc *)addr; 2920 delete_done = 0; 2921 2922 mtx_lock(&softc->ctl_lock); 2923 if (delete_desc->lun_id >= ctl_max_luns || 2924 (lun = softc->ctl_luns[delete_desc->lun_id]) == NULL) { 2925 mtx_unlock(&softc->ctl_lock); 2926 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2927 __func__, (uintmax_t)delete_desc->lun_id); 2928 retval = EINVAL; 2929 break; 2930 } 2931 mtx_lock(&lun->lun_lock); 2932 mtx_unlock(&softc->ctl_lock); 2933 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2934 if (desc->serial != delete_desc->serial) 2935 continue; 2936 2937 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2938 links); 2939 free(desc, M_CTL); 2940 delete_done = 1; 2941 } 2942 mtx_unlock(&lun->lun_lock); 2943 if (delete_done == 0) { 2944 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2945 "error serial %ju on LUN %u\n", __func__, 2946 delete_desc->serial, delete_desc->lun_id); 2947 retval = EINVAL; 2948 break; 2949 } 2950 break; 2951 } 2952 case CTL_DUMP_STRUCTS: { 2953 int j, k; 2954 struct ctl_port *port; 2955 struct ctl_frontend *fe; 2956 2957 mtx_lock(&softc->ctl_lock); 2958 printf("CTL Persistent Reservation information start:\n"); 2959 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2960 mtx_lock(&lun->lun_lock); 2961 if ((lun->flags & CTL_LUN_DISABLED) != 0) { 2962 mtx_unlock(&lun->lun_lock); 2963 continue; 2964 } 2965 2966 for (j = 0; j < ctl_max_ports; j++) { 2967 if (lun->pr_keys[j] == NULL) 2968 continue; 2969 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2970 if (lun->pr_keys[j][k] == 0) 2971 continue; 2972 printf(" LUN %ju port %d iid %d key " 2973 "%#jx\n", lun->lun, j, k, 2974 (uintmax_t)lun->pr_keys[j][k]); 2975 } 2976 } 2977 mtx_unlock(&lun->lun_lock); 2978 } 2979 printf("CTL Persistent Reservation information end\n"); 2980 printf("CTL Ports:\n"); 2981 STAILQ_FOREACH(port, &softc->port_list, links) { 2982 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 2983 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 2984 port->frontend->name, port->port_type, 2985 port->physical_port, port->virtual_port, 2986 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 2987 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 2988 if (port->wwpn_iid[j].in_use == 0 && 2989 port->wwpn_iid[j].wwpn == 0 && 2990 port->wwpn_iid[j].name == NULL) 2991 continue; 2992 2993 printf(" iid %u use %d WWPN %#jx '%s'\n", 2994 j, port->wwpn_iid[j].in_use, 2995 (uintmax_t)port->wwpn_iid[j].wwpn, 2996 port->wwpn_iid[j].name); 2997 } 2998 } 2999 printf("CTL Port information end\n"); 3000 mtx_unlock(&softc->ctl_lock); 3001 /* 3002 * XXX KDM calling this without a lock. We'd likely want 3003 * to drop the lock before calling the frontend's dump 3004 * routine anyway. 3005 */ 3006 printf("CTL Frontends:\n"); 3007 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3008 printf(" Frontend '%s'\n", fe->name); 3009 if (fe->fe_dump != NULL) 3010 fe->fe_dump(); 3011 } 3012 printf("CTL Frontend information end\n"); 3013 break; 3014 } 3015 case CTL_LUN_REQ: { 3016 struct ctl_lun_req *lun_req; 3017 struct ctl_backend_driver *backend; 3018 3019 lun_req = (struct ctl_lun_req *)addr; 3020 3021 backend = ctl_backend_find(lun_req->backend); 3022 if (backend == NULL) { 3023 lun_req->status = CTL_LUN_ERROR; 3024 snprintf(lun_req->error_str, 3025 sizeof(lun_req->error_str), 3026 "Backend \"%s\" not found.", 3027 lun_req->backend); 3028 break; 3029 } 3030 if (lun_req->num_be_args > 0) { 3031 lun_req->kern_be_args = ctl_copyin_args( 3032 lun_req->num_be_args, 3033 lun_req->be_args, 3034 lun_req->error_str, 3035 sizeof(lun_req->error_str)); 3036 if (lun_req->kern_be_args == NULL) { 3037 lun_req->status = CTL_LUN_ERROR; 3038 break; 3039 } 3040 } 3041 3042 retval = backend->ioctl(dev, cmd, addr, flag, td); 3043 3044 if (lun_req->num_be_args > 0) { 3045 ctl_copyout_args(lun_req->num_be_args, 3046 lun_req->kern_be_args); 3047 ctl_free_args(lun_req->num_be_args, 3048 lun_req->kern_be_args); 3049 } 3050 break; 3051 } 3052 case CTL_LUN_LIST: { 3053 struct sbuf *sb; 3054 struct ctl_lun_list *list; 3055 struct ctl_option *opt; 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->be_lun, sb); 3178 if (retval != 0) 3179 break; 3180 } 3181 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3182 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3183 opt->name, opt->value, opt->name); 3184 if (retval != 0) 3185 break; 3186 } 3187 3188 retval = sbuf_printf(sb, "</lun>\n"); 3189 3190 if (retval != 0) 3191 break; 3192 mtx_unlock(&lun->lun_lock); 3193 } 3194 if (lun != NULL) 3195 mtx_unlock(&lun->lun_lock); 3196 mtx_unlock(&softc->ctl_lock); 3197 3198 if ((retval != 0) 3199 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3200 retval = 0; 3201 sbuf_delete(sb); 3202 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3203 snprintf(list->error_str, sizeof(list->error_str), 3204 "Out of space, %d bytes is too small", 3205 list->alloc_len); 3206 break; 3207 } 3208 3209 sbuf_finish(sb); 3210 3211 retval = copyout(sbuf_data(sb), list->lun_xml, 3212 sbuf_len(sb) + 1); 3213 3214 list->fill_len = sbuf_len(sb) + 1; 3215 list->status = CTL_LUN_LIST_OK; 3216 sbuf_delete(sb); 3217 break; 3218 } 3219 case CTL_ISCSI: { 3220 struct ctl_iscsi *ci; 3221 struct ctl_frontend *fe; 3222 3223 ci = (struct ctl_iscsi *)addr; 3224 3225 fe = ctl_frontend_find("iscsi"); 3226 if (fe == NULL) { 3227 ci->status = CTL_ISCSI_ERROR; 3228 snprintf(ci->error_str, sizeof(ci->error_str), 3229 "Frontend \"iscsi\" not found."); 3230 break; 3231 } 3232 3233 retval = fe->ioctl(dev, cmd, addr, flag, td); 3234 break; 3235 } 3236 case CTL_PORT_REQ: { 3237 struct ctl_req *req; 3238 struct ctl_frontend *fe; 3239 3240 req = (struct ctl_req *)addr; 3241 3242 fe = ctl_frontend_find(req->driver); 3243 if (fe == NULL) { 3244 req->status = CTL_LUN_ERROR; 3245 snprintf(req->error_str, sizeof(req->error_str), 3246 "Frontend \"%s\" not found.", req->driver); 3247 break; 3248 } 3249 if (req->num_args > 0) { 3250 req->kern_args = ctl_copyin_args(req->num_args, 3251 req->args, req->error_str, sizeof(req->error_str)); 3252 if (req->kern_args == NULL) { 3253 req->status = CTL_LUN_ERROR; 3254 break; 3255 } 3256 } 3257 3258 if (fe->ioctl) 3259 retval = fe->ioctl(dev, cmd, addr, flag, td); 3260 else 3261 retval = ENODEV; 3262 3263 if (req->num_args > 0) { 3264 ctl_copyout_args(req->num_args, req->kern_args); 3265 ctl_free_args(req->num_args, req->kern_args); 3266 } 3267 break; 3268 } 3269 case CTL_PORT_LIST: { 3270 struct sbuf *sb; 3271 struct ctl_port *port; 3272 struct ctl_lun_list *list; 3273 struct ctl_option *opt; 3274 int j; 3275 uint32_t plun; 3276 3277 list = (struct ctl_lun_list *)addr; 3278 3279 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3280 if (sb == NULL) { 3281 list->status = CTL_LUN_LIST_ERROR; 3282 snprintf(list->error_str, sizeof(list->error_str), 3283 "Unable to allocate %d bytes for LUN list", 3284 list->alloc_len); 3285 break; 3286 } 3287 3288 sbuf_printf(sb, "<ctlportlist>\n"); 3289 3290 mtx_lock(&softc->ctl_lock); 3291 STAILQ_FOREACH(port, &softc->port_list, links) { 3292 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3293 (uintmax_t)port->targ_port); 3294 3295 /* 3296 * Bail out as soon as we see that we've overfilled 3297 * the buffer. 3298 */ 3299 if (retval != 0) 3300 break; 3301 3302 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3303 "</frontend_type>\n", port->frontend->name); 3304 if (retval != 0) 3305 break; 3306 3307 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3308 port->port_type); 3309 if (retval != 0) 3310 break; 3311 3312 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3313 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3314 if (retval != 0) 3315 break; 3316 3317 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3318 port->port_name); 3319 if (retval != 0) 3320 break; 3321 3322 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3323 port->physical_port); 3324 if (retval != 0) 3325 break; 3326 3327 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3328 port->virtual_port); 3329 if (retval != 0) 3330 break; 3331 3332 if (port->target_devid != NULL) { 3333 sbuf_printf(sb, "\t<target>"); 3334 ctl_id_sbuf(port->target_devid, sb); 3335 sbuf_printf(sb, "</target>\n"); 3336 } 3337 3338 if (port->port_devid != NULL) { 3339 sbuf_printf(sb, "\t<port>"); 3340 ctl_id_sbuf(port->port_devid, sb); 3341 sbuf_printf(sb, "</port>\n"); 3342 } 3343 3344 if (port->port_info != NULL) { 3345 retval = port->port_info(port->onoff_arg, sb); 3346 if (retval != 0) 3347 break; 3348 } 3349 STAILQ_FOREACH(opt, &port->options, links) { 3350 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3351 opt->name, opt->value, opt->name); 3352 if (retval != 0) 3353 break; 3354 } 3355 3356 if (port->lun_map != NULL) { 3357 sbuf_printf(sb, "\t<lun_map>on</lun_map>\n"); 3358 for (j = 0; j < port->lun_map_size; j++) { 3359 plun = ctl_lun_map_from_port(port, j); 3360 if (plun == UINT32_MAX) 3361 continue; 3362 sbuf_printf(sb, 3363 "\t<lun id=\"%u\">%u</lun>\n", 3364 j, plun); 3365 } 3366 } 3367 3368 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3369 if (port->wwpn_iid[j].in_use == 0 || 3370 (port->wwpn_iid[j].wwpn == 0 && 3371 port->wwpn_iid[j].name == NULL)) 3372 continue; 3373 3374 if (port->wwpn_iid[j].name != NULL) 3375 retval = sbuf_printf(sb, 3376 "\t<initiator id=\"%u\">%s</initiator>\n", 3377 j, port->wwpn_iid[j].name); 3378 else 3379 retval = sbuf_printf(sb, 3380 "\t<initiator id=\"%u\">naa.%08jx</initiator>\n", 3381 j, port->wwpn_iid[j].wwpn); 3382 if (retval != 0) 3383 break; 3384 } 3385 if (retval != 0) 3386 break; 3387 3388 retval = sbuf_printf(sb, "</targ_port>\n"); 3389 if (retval != 0) 3390 break; 3391 } 3392 mtx_unlock(&softc->ctl_lock); 3393 3394 if ((retval != 0) 3395 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3396 retval = 0; 3397 sbuf_delete(sb); 3398 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3399 snprintf(list->error_str, sizeof(list->error_str), 3400 "Out of space, %d bytes is too small", 3401 list->alloc_len); 3402 break; 3403 } 3404 3405 sbuf_finish(sb); 3406 3407 retval = copyout(sbuf_data(sb), list->lun_xml, 3408 sbuf_len(sb) + 1); 3409 3410 list->fill_len = sbuf_len(sb) + 1; 3411 list->status = CTL_LUN_LIST_OK; 3412 sbuf_delete(sb); 3413 break; 3414 } 3415 case CTL_LUN_MAP: { 3416 struct ctl_lun_map *lm = (struct ctl_lun_map *)addr; 3417 struct ctl_port *port; 3418 3419 mtx_lock(&softc->ctl_lock); 3420 if (lm->port < softc->port_min || 3421 lm->port >= softc->port_max || 3422 (port = softc->ctl_ports[lm->port]) == NULL) { 3423 mtx_unlock(&softc->ctl_lock); 3424 return (ENXIO); 3425 } 3426 if (port->status & CTL_PORT_STATUS_ONLINE) { 3427 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3428 if (ctl_lun_map_to_port(port, lun->lun) == 3429 UINT32_MAX) 3430 continue; 3431 mtx_lock(&lun->lun_lock); 3432 ctl_est_ua_port(lun, lm->port, -1, 3433 CTL_UA_LUN_CHANGE); 3434 mtx_unlock(&lun->lun_lock); 3435 } 3436 } 3437 mtx_unlock(&softc->ctl_lock); // XXX: port_enable sleeps 3438 if (lm->plun != UINT32_MAX) { 3439 if (lm->lun == UINT32_MAX) 3440 retval = ctl_lun_map_unset(port, lm->plun); 3441 else if (lm->lun < ctl_max_luns && 3442 softc->ctl_luns[lm->lun] != NULL) 3443 retval = ctl_lun_map_set(port, lm->plun, lm->lun); 3444 else 3445 return (ENXIO); 3446 } else { 3447 if (lm->lun == UINT32_MAX) 3448 retval = ctl_lun_map_deinit(port); 3449 else 3450 retval = ctl_lun_map_init(port); 3451 } 3452 if (port->status & CTL_PORT_STATUS_ONLINE) 3453 ctl_isc_announce_port(port); 3454 break; 3455 } 3456 case CTL_GET_LUN_STATS: { 3457 struct ctl_get_io_stats *stats = (struct ctl_get_io_stats *)addr; 3458 int i; 3459 3460 /* 3461 * XXX KDM no locking here. If the LUN list changes, 3462 * things can blow up. 3463 */ 3464 i = 0; 3465 stats->status = CTL_SS_OK; 3466 stats->fill_len = 0; 3467 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3468 if (lun->lun < stats->first_item) 3469 continue; 3470 if (stats->fill_len + sizeof(lun->stats) > 3471 stats->alloc_len) { 3472 stats->status = CTL_SS_NEED_MORE_SPACE; 3473 break; 3474 } 3475 retval = copyout(&lun->stats, &stats->stats[i++], 3476 sizeof(lun->stats)); 3477 if (retval != 0) 3478 break; 3479 stats->fill_len += sizeof(lun->stats); 3480 } 3481 stats->num_items = softc->num_luns; 3482 stats->flags = CTL_STATS_FLAG_NONE; 3483#ifdef CTL_TIME_IO 3484 stats->flags |= CTL_STATS_FLAG_TIME_VALID; 3485#endif 3486 getnanouptime(&stats->timestamp); 3487 break; 3488 } 3489 case CTL_GET_PORT_STATS: { 3490 struct ctl_get_io_stats *stats = (struct ctl_get_io_stats *)addr; 3491 int i; 3492 3493 /* 3494 * XXX KDM no locking here. If the LUN list changes, 3495 * things can blow up. 3496 */ 3497 i = 0; 3498 stats->status = CTL_SS_OK; 3499 stats->fill_len = 0; 3500 STAILQ_FOREACH(port, &softc->port_list, links) { 3501 if (port->targ_port < stats->first_item) 3502 continue; 3503 if (stats->fill_len + sizeof(port->stats) > 3504 stats->alloc_len) { 3505 stats->status = CTL_SS_NEED_MORE_SPACE; 3506 break; 3507 } 3508 retval = copyout(&port->stats, &stats->stats[i++], 3509 sizeof(port->stats)); 3510 if (retval != 0) 3511 break; 3512 stats->fill_len += sizeof(port->stats); 3513 } 3514 stats->num_items = softc->num_ports; 3515 stats->flags = CTL_STATS_FLAG_NONE; 3516#ifdef CTL_TIME_IO 3517 stats->flags |= CTL_STATS_FLAG_TIME_VALID; 3518#endif 3519 getnanouptime(&stats->timestamp); 3520 break; 3521 } 3522 default: { 3523 /* XXX KDM should we fix this? */ 3524#if 0 3525 struct ctl_backend_driver *backend; 3526 unsigned int type; 3527 int found; 3528 3529 found = 0; 3530 3531 /* 3532 * We encode the backend type as the ioctl type for backend 3533 * ioctls. So parse it out here, and then search for a 3534 * backend of this type. 3535 */ 3536 type = _IOC_TYPE(cmd); 3537 3538 STAILQ_FOREACH(backend, &softc->be_list, links) { 3539 if (backend->type == type) { 3540 found = 1; 3541 break; 3542 } 3543 } 3544 if (found == 0) { 3545 printf("ctl: unknown ioctl command %#lx or backend " 3546 "%d\n", cmd, type); 3547 retval = EINVAL; 3548 break; 3549 } 3550 retval = backend->ioctl(dev, cmd, addr, flag, td); 3551#endif 3552 retval = ENOTTY; 3553 break; 3554 } 3555 } 3556 return (retval); 3557} 3558 3559uint32_t 3560ctl_get_initindex(struct ctl_nexus *nexus) 3561{ 3562 return (nexus->initid + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3563} 3564 3565int 3566ctl_lun_map_init(struct ctl_port *port) 3567{ 3568 struct ctl_softc *softc = port->ctl_softc; 3569 struct ctl_lun *lun; 3570 int size = ctl_lun_map_size; 3571 uint32_t i; 3572 3573 if (port->lun_map == NULL || port->lun_map_size < size) { 3574 port->lun_map_size = 0; 3575 free(port->lun_map, M_CTL); 3576 port->lun_map = malloc(size * sizeof(uint32_t), 3577 M_CTL, M_NOWAIT); 3578 } 3579 if (port->lun_map == NULL) 3580 return (ENOMEM); 3581 for (i = 0; i < size; i++) 3582 port->lun_map[i] = UINT32_MAX; 3583 port->lun_map_size = size; 3584 if (port->status & CTL_PORT_STATUS_ONLINE) { 3585 if (port->lun_disable != NULL) { 3586 STAILQ_FOREACH(lun, &softc->lun_list, links) 3587 port->lun_disable(port->targ_lun_arg, lun->lun); 3588 } 3589 ctl_isc_announce_port(port); 3590 } 3591 return (0); 3592} 3593 3594int 3595ctl_lun_map_deinit(struct ctl_port *port) 3596{ 3597 struct ctl_softc *softc = port->ctl_softc; 3598 struct ctl_lun *lun; 3599 3600 if (port->lun_map == NULL) 3601 return (0); 3602 port->lun_map_size = 0; 3603 free(port->lun_map, M_CTL); 3604 port->lun_map = NULL; 3605 if (port->status & CTL_PORT_STATUS_ONLINE) { 3606 if (port->lun_enable != NULL) { 3607 STAILQ_FOREACH(lun, &softc->lun_list, links) 3608 port->lun_enable(port->targ_lun_arg, lun->lun); 3609 } 3610 ctl_isc_announce_port(port); 3611 } 3612 return (0); 3613} 3614 3615int 3616ctl_lun_map_set(struct ctl_port *port, uint32_t plun, uint32_t glun) 3617{ 3618 int status; 3619 uint32_t old; 3620 3621 if (port->lun_map == NULL) { 3622 status = ctl_lun_map_init(port); 3623 if (status != 0) 3624 return (status); 3625 } 3626 if (plun >= port->lun_map_size) 3627 return (EINVAL); 3628 old = port->lun_map[plun]; 3629 port->lun_map[plun] = glun; 3630 if ((port->status & CTL_PORT_STATUS_ONLINE) && old == UINT32_MAX) { 3631 if (port->lun_enable != NULL) 3632 port->lun_enable(port->targ_lun_arg, plun); 3633 ctl_isc_announce_port(port); 3634 } 3635 return (0); 3636} 3637 3638int 3639ctl_lun_map_unset(struct ctl_port *port, uint32_t plun) 3640{ 3641 uint32_t old; 3642 3643 if (port->lun_map == NULL || plun >= port->lun_map_size) 3644 return (0); 3645 old = port->lun_map[plun]; 3646 port->lun_map[plun] = UINT32_MAX; 3647 if ((port->status & CTL_PORT_STATUS_ONLINE) && old != UINT32_MAX) { 3648 if (port->lun_disable != NULL) 3649 port->lun_disable(port->targ_lun_arg, plun); 3650 ctl_isc_announce_port(port); 3651 } 3652 return (0); 3653} 3654 3655uint32_t 3656ctl_lun_map_from_port(struct ctl_port *port, uint32_t lun_id) 3657{ 3658 3659 if (port == NULL) 3660 return (UINT32_MAX); 3661 if (port->lun_map == NULL) 3662 return (lun_id); 3663 if (lun_id > port->lun_map_size) 3664 return (UINT32_MAX); 3665 return (port->lun_map[lun_id]); 3666} 3667 3668uint32_t 3669ctl_lun_map_to_port(struct ctl_port *port, uint32_t lun_id) 3670{ 3671 uint32_t i; 3672 3673 if (port == NULL) 3674 return (UINT32_MAX); 3675 if (port->lun_map == NULL) 3676 return (lun_id); 3677 for (i = 0; i < port->lun_map_size; i++) { 3678 if (port->lun_map[i] == lun_id) 3679 return (i); 3680 } 3681 return (UINT32_MAX); 3682} 3683 3684uint32_t 3685ctl_decode_lun(uint64_t encoded) 3686{ 3687 uint8_t lun[8]; 3688 uint32_t result = 0xffffffff; 3689 3690 be64enc(lun, encoded); 3691 switch (lun[0] & RPL_LUNDATA_ATYP_MASK) { 3692 case RPL_LUNDATA_ATYP_PERIPH: 3693 if ((lun[0] & 0x3f) == 0 && lun[2] == 0 && lun[3] == 0 && 3694 lun[4] == 0 && lun[5] == 0 && lun[6] == 0 && lun[7] == 0) 3695 result = lun[1]; 3696 break; 3697 case RPL_LUNDATA_ATYP_FLAT: 3698 if (lun[2] == 0 && lun[3] == 0 && lun[4] == 0 && lun[5] == 0 && 3699 lun[6] == 0 && lun[7] == 0) 3700 result = ((lun[0] & 0x3f) << 8) + lun[1]; 3701 break; 3702 case RPL_LUNDATA_ATYP_EXTLUN: 3703 switch (lun[0] & RPL_LUNDATA_EXT_EAM_MASK) { 3704 case 0x02: 3705 switch (lun[0] & RPL_LUNDATA_EXT_LEN_MASK) { 3706 case 0x00: 3707 result = lun[1]; 3708 break; 3709 case 0x10: 3710 result = (lun[1] << 16) + (lun[2] << 8) + 3711 lun[3]; 3712 break; 3713 case 0x20: 3714 if (lun[1] == 0 && lun[6] == 0 && lun[7] == 0) 3715 result = (lun[2] << 24) + 3716 (lun[3] << 16) + (lun[4] << 8) + 3717 lun[5]; 3718 break; 3719 } 3720 break; 3721 case RPL_LUNDATA_EXT_EAM_NOT_SPEC: 3722 result = 0xffffffff; 3723 break; 3724 } 3725 break; 3726 } 3727 return (result); 3728} 3729 3730uint64_t 3731ctl_encode_lun(uint32_t decoded) 3732{ 3733 uint64_t l = decoded; 3734 3735 if (l <= 0xff) 3736 return (((uint64_t)RPL_LUNDATA_ATYP_PERIPH << 56) | (l << 48)); 3737 if (l <= 0x3fff) 3738 return (((uint64_t)RPL_LUNDATA_ATYP_FLAT << 56) | (l << 48)); 3739 if (l <= 0xffffff) 3740 return (((uint64_t)(RPL_LUNDATA_ATYP_EXTLUN | 0x12) << 56) | 3741 (l << 32)); 3742 return ((((uint64_t)RPL_LUNDATA_ATYP_EXTLUN | 0x22) << 56) | (l << 16)); 3743} 3744 3745int 3746ctl_ffz(uint32_t *mask, uint32_t first, uint32_t last) 3747{ 3748 int i; 3749 3750 for (i = first; i < last; i++) { 3751 if ((mask[i / 32] & (1 << (i % 32))) == 0) 3752 return (i); 3753 } 3754 return (-1); 3755} 3756 3757int 3758ctl_set_mask(uint32_t *mask, uint32_t bit) 3759{ 3760 uint32_t chunk, piece; 3761 3762 chunk = bit >> 5; 3763 piece = bit % (sizeof(uint32_t) * 8); 3764 3765 if ((mask[chunk] & (1 << piece)) != 0) 3766 return (-1); 3767 else 3768 mask[chunk] |= (1 << piece); 3769 3770 return (0); 3771} 3772 3773int 3774ctl_clear_mask(uint32_t *mask, uint32_t bit) 3775{ 3776 uint32_t chunk, piece; 3777 3778 chunk = bit >> 5; 3779 piece = bit % (sizeof(uint32_t) * 8); 3780 3781 if ((mask[chunk] & (1 << piece)) == 0) 3782 return (-1); 3783 else 3784 mask[chunk] &= ~(1 << piece); 3785 3786 return (0); 3787} 3788 3789int 3790ctl_is_set(uint32_t *mask, uint32_t bit) 3791{ 3792 uint32_t chunk, piece; 3793 3794 chunk = bit >> 5; 3795 piece = bit % (sizeof(uint32_t) * 8); 3796 3797 if ((mask[chunk] & (1 << piece)) == 0) 3798 return (0); 3799 else 3800 return (1); 3801} 3802 3803static uint64_t 3804ctl_get_prkey(struct ctl_lun *lun, uint32_t residx) 3805{ 3806 uint64_t *t; 3807 3808 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3809 if (t == NULL) 3810 return (0); 3811 return (t[residx % CTL_MAX_INIT_PER_PORT]); 3812} 3813 3814static void 3815ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx) 3816{ 3817 uint64_t *t; 3818 3819 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3820 if (t == NULL) 3821 return; 3822 t[residx % CTL_MAX_INIT_PER_PORT] = 0; 3823} 3824 3825static void 3826ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx) 3827{ 3828 uint64_t *p; 3829 u_int i; 3830 3831 i = residx/CTL_MAX_INIT_PER_PORT; 3832 if (lun->pr_keys[i] != NULL) 3833 return; 3834 mtx_unlock(&lun->lun_lock); 3835 p = malloc(sizeof(uint64_t) * CTL_MAX_INIT_PER_PORT, M_CTL, 3836 M_WAITOK | M_ZERO); 3837 mtx_lock(&lun->lun_lock); 3838 if (lun->pr_keys[i] == NULL) 3839 lun->pr_keys[i] = p; 3840 else 3841 free(p, M_CTL); 3842} 3843 3844static void 3845ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key) 3846{ 3847 uint64_t *t; 3848 3849 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3850 KASSERT(t != NULL, ("prkey %d is not allocated", residx)); 3851 t[residx % CTL_MAX_INIT_PER_PORT] = key; 3852} 3853 3854/* 3855 * ctl_softc, pool_name, total_ctl_io are passed in. 3856 * npool is passed out. 3857 */ 3858int 3859ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name, 3860 uint32_t total_ctl_io, void **npool) 3861{ 3862 struct ctl_io_pool *pool; 3863 3864 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3865 M_NOWAIT | M_ZERO); 3866 if (pool == NULL) 3867 return (ENOMEM); 3868 3869 snprintf(pool->name, sizeof(pool->name), "CTL IO %s", pool_name); 3870 pool->ctl_softc = ctl_softc; 3871#ifdef IO_POOLS 3872 pool->zone = uma_zsecond_create(pool->name, NULL, 3873 NULL, NULL, NULL, ctl_softc->io_zone); 3874 /* uma_prealloc(pool->zone, total_ctl_io); */ 3875#else 3876 pool->zone = ctl_softc->io_zone; 3877#endif 3878 3879 *npool = pool; 3880 return (0); 3881} 3882 3883void 3884ctl_pool_free(struct ctl_io_pool *pool) 3885{ 3886 3887 if (pool == NULL) 3888 return; 3889 3890#ifdef IO_POOLS 3891 uma_zdestroy(pool->zone); 3892#endif 3893 free(pool, M_CTL); 3894} 3895 3896union ctl_io * 3897ctl_alloc_io(void *pool_ref) 3898{ 3899 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3900 union ctl_io *io; 3901 3902 io = uma_zalloc(pool->zone, M_WAITOK); 3903 if (io != NULL) { 3904 io->io_hdr.pool = pool_ref; 3905 CTL_SOFTC(io) = pool->ctl_softc; 3906 TAILQ_INIT(&io->io_hdr.blocked_queue); 3907 } 3908 return (io); 3909} 3910 3911union ctl_io * 3912ctl_alloc_io_nowait(void *pool_ref) 3913{ 3914 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3915 union ctl_io *io; 3916 3917 io = uma_zalloc(pool->zone, M_NOWAIT); 3918 if (io != NULL) { 3919 io->io_hdr.pool = pool_ref; 3920 CTL_SOFTC(io) = pool->ctl_softc; 3921 TAILQ_INIT(&io->io_hdr.blocked_queue); 3922 } 3923 return (io); 3924} 3925 3926void 3927ctl_free_io(union ctl_io *io) 3928{ 3929 struct ctl_io_pool *pool; 3930 3931 if (io == NULL) 3932 return; 3933 3934 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3935 uma_zfree(pool->zone, io); 3936} 3937 3938void 3939ctl_zero_io(union ctl_io *io) 3940{ 3941 struct ctl_io_pool *pool; 3942 3943 if (io == NULL) 3944 return; 3945 3946 /* 3947 * May need to preserve linked list pointers at some point too. 3948 */ 3949 pool = io->io_hdr.pool; 3950 memset(io, 0, sizeof(*io)); 3951 io->io_hdr.pool = pool; 3952 CTL_SOFTC(io) = pool->ctl_softc; 3953 TAILQ_INIT(&io->io_hdr.blocked_queue); 3954} 3955 3956int 3957ctl_expand_number(const char *buf, uint64_t *num) 3958{ 3959 char *endptr; 3960 uint64_t number; 3961 unsigned shift; 3962 3963 number = strtoq(buf, &endptr, 0); 3964 3965 switch (tolower((unsigned char)*endptr)) { 3966 case 'e': 3967 shift = 60; 3968 break; 3969 case 'p': 3970 shift = 50; 3971 break; 3972 case 't': 3973 shift = 40; 3974 break; 3975 case 'g': 3976 shift = 30; 3977 break; 3978 case 'm': 3979 shift = 20; 3980 break; 3981 case 'k': 3982 shift = 10; 3983 break; 3984 case 'b': 3985 case '\0': /* No unit. */ 3986 *num = number; 3987 return (0); 3988 default: 3989 /* Unrecognized unit. */ 3990 return (-1); 3991 } 3992 3993 if ((number << shift) >> shift != number) { 3994 /* Overflow */ 3995 return (-1); 3996 } 3997 *num = number << shift; 3998 return (0); 3999} 4000 4001 4002/* 4003 * This routine could be used in the future to load default and/or saved 4004 * mode page parameters for a particuar lun. 4005 */ 4006static int 4007ctl_init_page_index(struct ctl_lun *lun) 4008{ 4009 int i, page_code; 4010 struct ctl_page_index *page_index; 4011 const char *value; 4012 uint64_t ival; 4013 4014 memcpy(&lun->mode_pages.index, page_index_template, 4015 sizeof(page_index_template)); 4016 4017 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 4018 4019 page_index = &lun->mode_pages.index[i]; 4020 if (lun->be_lun->lun_type == T_DIRECT && 4021 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 4022 continue; 4023 if (lun->be_lun->lun_type == T_PROCESSOR && 4024 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 4025 continue; 4026 if (lun->be_lun->lun_type == T_CDROM && 4027 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 4028 continue; 4029 4030 page_code = page_index->page_code & SMPH_PC_MASK; 4031 switch (page_code) { 4032 case SMS_RW_ERROR_RECOVERY_PAGE: { 4033 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4034 ("subpage %#x for page %#x is incorrect!", 4035 page_index->subpage, page_code)); 4036 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 4037 &rw_er_page_default, 4038 sizeof(rw_er_page_default)); 4039 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 4040 &rw_er_page_changeable, 4041 sizeof(rw_er_page_changeable)); 4042 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 4043 &rw_er_page_default, 4044 sizeof(rw_er_page_default)); 4045 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 4046 &rw_er_page_default, 4047 sizeof(rw_er_page_default)); 4048 page_index->page_data = 4049 (uint8_t *)lun->mode_pages.rw_er_page; 4050 break; 4051 } 4052 case SMS_FORMAT_DEVICE_PAGE: { 4053 struct scsi_format_page *format_page; 4054 4055 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4056 ("subpage %#x for page %#x is incorrect!", 4057 page_index->subpage, page_code)); 4058 4059 /* 4060 * Sectors per track are set above. Bytes per 4061 * sector need to be set here on a per-LUN basis. 4062 */ 4063 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 4064 &format_page_default, 4065 sizeof(format_page_default)); 4066 memcpy(&lun->mode_pages.format_page[ 4067 CTL_PAGE_CHANGEABLE], &format_page_changeable, 4068 sizeof(format_page_changeable)); 4069 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 4070 &format_page_default, 4071 sizeof(format_page_default)); 4072 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 4073 &format_page_default, 4074 sizeof(format_page_default)); 4075 4076 format_page = &lun->mode_pages.format_page[ 4077 CTL_PAGE_CURRENT]; 4078 scsi_ulto2b(lun->be_lun->blocksize, 4079 format_page->bytes_per_sector); 4080 4081 format_page = &lun->mode_pages.format_page[ 4082 CTL_PAGE_DEFAULT]; 4083 scsi_ulto2b(lun->be_lun->blocksize, 4084 format_page->bytes_per_sector); 4085 4086 format_page = &lun->mode_pages.format_page[ 4087 CTL_PAGE_SAVED]; 4088 scsi_ulto2b(lun->be_lun->blocksize, 4089 format_page->bytes_per_sector); 4090 4091 page_index->page_data = 4092 (uint8_t *)lun->mode_pages.format_page; 4093 break; 4094 } 4095 case SMS_RIGID_DISK_PAGE: { 4096 struct scsi_rigid_disk_page *rigid_disk_page; 4097 uint32_t sectors_per_cylinder; 4098 uint64_t cylinders; 4099#ifndef __XSCALE__ 4100 int shift; 4101#endif /* !__XSCALE__ */ 4102 4103 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4104 ("subpage %#x for page %#x is incorrect!", 4105 page_index->subpage, page_code)); 4106 4107 /* 4108 * Rotation rate and sectors per track are set 4109 * above. We calculate the cylinders here based on 4110 * capacity. Due to the number of heads and 4111 * sectors per track we're using, smaller arrays 4112 * may turn out to have 0 cylinders. Linux and 4113 * FreeBSD don't pay attention to these mode pages 4114 * to figure out capacity, but Solaris does. It 4115 * seems to deal with 0 cylinders just fine, and 4116 * works out a fake geometry based on the capacity. 4117 */ 4118 memcpy(&lun->mode_pages.rigid_disk_page[ 4119 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4120 sizeof(rigid_disk_page_default)); 4121 memcpy(&lun->mode_pages.rigid_disk_page[ 4122 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4123 sizeof(rigid_disk_page_changeable)); 4124 4125 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4126 CTL_DEFAULT_HEADS; 4127 4128 /* 4129 * The divide method here will be more accurate, 4130 * probably, but results in floating point being 4131 * used in the kernel on i386 (__udivdi3()). On the 4132 * XScale, though, __udivdi3() is implemented in 4133 * software. 4134 * 4135 * The shift method for cylinder calculation is 4136 * accurate if sectors_per_cylinder is a power of 4137 * 2. Otherwise it might be slightly off -- you 4138 * might have a bit of a truncation problem. 4139 */ 4140#ifdef __XSCALE__ 4141 cylinders = (lun->be_lun->maxlba + 1) / 4142 sectors_per_cylinder; 4143#else 4144 for (shift = 31; shift > 0; shift--) { 4145 if (sectors_per_cylinder & (1 << shift)) 4146 break; 4147 } 4148 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4149#endif 4150 4151 /* 4152 * We've basically got 3 bytes, or 24 bits for the 4153 * cylinder size in the mode page. If we're over, 4154 * just round down to 2^24. 4155 */ 4156 if (cylinders > 0xffffff) 4157 cylinders = 0xffffff; 4158 4159 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4160 CTL_PAGE_DEFAULT]; 4161 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4162 4163 if ((value = ctl_get_opt(&lun->be_lun->options, 4164 "rpm")) != NULL) { 4165 scsi_ulto2b(strtol(value, NULL, 0), 4166 rigid_disk_page->rotation_rate); 4167 } 4168 4169 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 4170 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4171 sizeof(rigid_disk_page_default)); 4172 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 4173 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4174 sizeof(rigid_disk_page_default)); 4175 4176 page_index->page_data = 4177 (uint8_t *)lun->mode_pages.rigid_disk_page; 4178 break; 4179 } 4180 case SMS_VERIFY_ERROR_RECOVERY_PAGE: { 4181 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4182 ("subpage %#x for page %#x is incorrect!", 4183 page_index->subpage, page_code)); 4184 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_CURRENT], 4185 &verify_er_page_default, 4186 sizeof(verify_er_page_default)); 4187 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_CHANGEABLE], 4188 &verify_er_page_changeable, 4189 sizeof(verify_er_page_changeable)); 4190 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_DEFAULT], 4191 &verify_er_page_default, 4192 sizeof(verify_er_page_default)); 4193 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_SAVED], 4194 &verify_er_page_default, 4195 sizeof(verify_er_page_default)); 4196 page_index->page_data = 4197 (uint8_t *)lun->mode_pages.verify_er_page; 4198 break; 4199 } 4200 case SMS_CACHING_PAGE: { 4201 struct scsi_caching_page *caching_page; 4202 4203 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4204 ("subpage %#x for page %#x is incorrect!", 4205 page_index->subpage, page_code)); 4206 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4207 &caching_page_default, 4208 sizeof(caching_page_default)); 4209 memcpy(&lun->mode_pages.caching_page[ 4210 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4211 sizeof(caching_page_changeable)); 4212 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4213 &caching_page_default, 4214 sizeof(caching_page_default)); 4215 caching_page = &lun->mode_pages.caching_page[ 4216 CTL_PAGE_SAVED]; 4217 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4218 if (value != NULL && strcmp(value, "off") == 0) 4219 caching_page->flags1 &= ~SCP_WCE; 4220 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4221 if (value != NULL && strcmp(value, "off") == 0) 4222 caching_page->flags1 |= SCP_RCD; 4223 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4224 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4225 sizeof(caching_page_default)); 4226 page_index->page_data = 4227 (uint8_t *)lun->mode_pages.caching_page; 4228 break; 4229 } 4230 case SMS_CONTROL_MODE_PAGE: { 4231 switch (page_index->subpage) { 4232 case SMS_SUBPAGE_PAGE_0: { 4233 struct scsi_control_page *control_page; 4234 4235 memcpy(&lun->mode_pages.control_page[ 4236 CTL_PAGE_DEFAULT], 4237 &control_page_default, 4238 sizeof(control_page_default)); 4239 memcpy(&lun->mode_pages.control_page[ 4240 CTL_PAGE_CHANGEABLE], 4241 &control_page_changeable, 4242 sizeof(control_page_changeable)); 4243 memcpy(&lun->mode_pages.control_page[ 4244 CTL_PAGE_SAVED], 4245 &control_page_default, 4246 sizeof(control_page_default)); 4247 control_page = &lun->mode_pages.control_page[ 4248 CTL_PAGE_SAVED]; 4249 value = ctl_get_opt(&lun->be_lun->options, 4250 "reordering"); 4251 if (value != NULL && 4252 strcmp(value, "unrestricted") == 0) { 4253 control_page->queue_flags &= 4254 ~SCP_QUEUE_ALG_MASK; 4255 control_page->queue_flags |= 4256 SCP_QUEUE_ALG_UNRESTRICTED; 4257 } 4258 memcpy(&lun->mode_pages.control_page[ 4259 CTL_PAGE_CURRENT], 4260 &lun->mode_pages.control_page[ 4261 CTL_PAGE_SAVED], 4262 sizeof(control_page_default)); 4263 page_index->page_data = 4264 (uint8_t *)lun->mode_pages.control_page; 4265 break; 4266 } 4267 case 0x01: 4268 memcpy(&lun->mode_pages.control_ext_page[ 4269 CTL_PAGE_DEFAULT], 4270 &control_ext_page_default, 4271 sizeof(control_ext_page_default)); 4272 memcpy(&lun->mode_pages.control_ext_page[ 4273 CTL_PAGE_CHANGEABLE], 4274 &control_ext_page_changeable, 4275 sizeof(control_ext_page_changeable)); 4276 memcpy(&lun->mode_pages.control_ext_page[ 4277 CTL_PAGE_SAVED], 4278 &control_ext_page_default, 4279 sizeof(control_ext_page_default)); 4280 memcpy(&lun->mode_pages.control_ext_page[ 4281 CTL_PAGE_CURRENT], 4282 &lun->mode_pages.control_ext_page[ 4283 CTL_PAGE_SAVED], 4284 sizeof(control_ext_page_default)); 4285 page_index->page_data = 4286 (uint8_t *)lun->mode_pages.control_ext_page; 4287 break; 4288 default: 4289 panic("subpage %#x for page %#x is incorrect!", 4290 page_index->subpage, page_code); 4291 } 4292 break; 4293 } 4294 case SMS_INFO_EXCEPTIONS_PAGE: { 4295 switch (page_index->subpage) { 4296 case SMS_SUBPAGE_PAGE_0: 4297 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 4298 &ie_page_default, 4299 sizeof(ie_page_default)); 4300 memcpy(&lun->mode_pages.ie_page[ 4301 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 4302 sizeof(ie_page_changeable)); 4303 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 4304 &ie_page_default, 4305 sizeof(ie_page_default)); 4306 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 4307 &ie_page_default, 4308 sizeof(ie_page_default)); 4309 page_index->page_data = 4310 (uint8_t *)lun->mode_pages.ie_page; 4311 break; 4312 case 0x02: { 4313 struct ctl_logical_block_provisioning_page *page; 4314 4315 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 4316 &lbp_page_default, 4317 sizeof(lbp_page_default)); 4318 memcpy(&lun->mode_pages.lbp_page[ 4319 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 4320 sizeof(lbp_page_changeable)); 4321 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4322 &lbp_page_default, 4323 sizeof(lbp_page_default)); 4324 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 4325 value = ctl_get_opt(&lun->be_lun->options, 4326 "avail-threshold"); 4327 if (value != NULL && 4328 ctl_expand_number(value, &ival) == 0) { 4329 page->descr[0].flags |= SLBPPD_ENABLED | 4330 SLBPPD_ARMING_DEC; 4331 if (lun->be_lun->blocksize) 4332 ival /= lun->be_lun->blocksize; 4333 else 4334 ival /= 512; 4335 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4336 page->descr[0].count); 4337 } 4338 value = ctl_get_opt(&lun->be_lun->options, 4339 "used-threshold"); 4340 if (value != NULL && 4341 ctl_expand_number(value, &ival) == 0) { 4342 page->descr[1].flags |= SLBPPD_ENABLED | 4343 SLBPPD_ARMING_INC; 4344 if (lun->be_lun->blocksize) 4345 ival /= lun->be_lun->blocksize; 4346 else 4347 ival /= 512; 4348 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4349 page->descr[1].count); 4350 } 4351 value = ctl_get_opt(&lun->be_lun->options, 4352 "pool-avail-threshold"); 4353 if (value != NULL && 4354 ctl_expand_number(value, &ival) == 0) { 4355 page->descr[2].flags |= SLBPPD_ENABLED | 4356 SLBPPD_ARMING_DEC; 4357 if (lun->be_lun->blocksize) 4358 ival /= lun->be_lun->blocksize; 4359 else 4360 ival /= 512; 4361 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4362 page->descr[2].count); 4363 } 4364 value = ctl_get_opt(&lun->be_lun->options, 4365 "pool-used-threshold"); 4366 if (value != NULL && 4367 ctl_expand_number(value, &ival) == 0) { 4368 page->descr[3].flags |= SLBPPD_ENABLED | 4369 SLBPPD_ARMING_INC; 4370 if (lun->be_lun->blocksize) 4371 ival /= lun->be_lun->blocksize; 4372 else 4373 ival /= 512; 4374 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4375 page->descr[3].count); 4376 } 4377 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 4378 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4379 sizeof(lbp_page_default)); 4380 page_index->page_data = 4381 (uint8_t *)lun->mode_pages.lbp_page; 4382 break; 4383 } 4384 default: 4385 panic("subpage %#x for page %#x is incorrect!", 4386 page_index->subpage, page_code); 4387 } 4388 break; 4389 } 4390 case SMS_CDDVD_CAPS_PAGE:{ 4391 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4392 ("subpage %#x for page %#x is incorrect!", 4393 page_index->subpage, page_code)); 4394 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_DEFAULT], 4395 &cddvd_page_default, 4396 sizeof(cddvd_page_default)); 4397 memcpy(&lun->mode_pages.cddvd_page[ 4398 CTL_PAGE_CHANGEABLE], &cddvd_page_changeable, 4399 sizeof(cddvd_page_changeable)); 4400 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4401 &cddvd_page_default, 4402 sizeof(cddvd_page_default)); 4403 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_CURRENT], 4404 &lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4405 sizeof(cddvd_page_default)); 4406 page_index->page_data = 4407 (uint8_t *)lun->mode_pages.cddvd_page; 4408 break; 4409 } 4410 default: 4411 panic("invalid page code value %#x", page_code); 4412 } 4413 } 4414 4415 return (CTL_RETVAL_COMPLETE); 4416} 4417 4418static int 4419ctl_init_log_page_index(struct ctl_lun *lun) 4420{ 4421 struct ctl_page_index *page_index; 4422 int i, j, k, prev; 4423 4424 memcpy(&lun->log_pages.index, log_page_index_template, 4425 sizeof(log_page_index_template)); 4426 4427 prev = -1; 4428 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4429 4430 page_index = &lun->log_pages.index[i]; 4431 if (lun->be_lun->lun_type == T_DIRECT && 4432 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 4433 continue; 4434 if (lun->be_lun->lun_type == T_PROCESSOR && 4435 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 4436 continue; 4437 if (lun->be_lun->lun_type == T_CDROM && 4438 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 4439 continue; 4440 4441 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4442 lun->backend->lun_attr == NULL) 4443 continue; 4444 4445 if (page_index->page_code != prev) { 4446 lun->log_pages.pages_page[j] = page_index->page_code; 4447 prev = page_index->page_code; 4448 j++; 4449 } 4450 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4451 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4452 k++; 4453 } 4454 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4455 lun->log_pages.index[0].page_len = j; 4456 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4457 lun->log_pages.index[1].page_len = k * 2; 4458 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4459 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4460 lun->log_pages.index[3].page_data = (uint8_t *)&lun->log_pages.stat_page; 4461 lun->log_pages.index[3].page_len = sizeof(lun->log_pages.stat_page); 4462 lun->log_pages.index[4].page_data = (uint8_t *)&lun->log_pages.ie_page; 4463 lun->log_pages.index[4].page_len = sizeof(lun->log_pages.ie_page); 4464 4465 return (CTL_RETVAL_COMPLETE); 4466} 4467 4468static int 4469hex2bin(const char *str, uint8_t *buf, int buf_size) 4470{ 4471 int i; 4472 u_char c; 4473 4474 memset(buf, 0, buf_size); 4475 while (isspace(str[0])) 4476 str++; 4477 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4478 str += 2; 4479 buf_size *= 2; 4480 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4481 while (str[i] == '-') /* Skip dashes in UUIDs. */ 4482 str++; 4483 c = str[i]; 4484 if (isdigit(c)) 4485 c -= '0'; 4486 else if (isalpha(c)) 4487 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4488 else 4489 break; 4490 if (c >= 16) 4491 break; 4492 if ((i & 1) == 0) 4493 buf[i / 2] |= (c << 4); 4494 else 4495 buf[i / 2] |= c; 4496 } 4497 return ((i + 1) / 2); 4498} 4499 4500/* 4501 * Add LUN. 4502 * 4503 * Returns 0 for success, non-zero (errno) for failure. 4504 */ 4505int 4506ctl_add_lun(struct ctl_be_lun *be_lun) 4507{ 4508 struct ctl_softc *ctl_softc = control_softc; 4509 struct ctl_lun *nlun, *lun; 4510 struct scsi_vpd_id_descriptor *desc; 4511 struct scsi_vpd_id_t10 *t10id; 4512 const char *eui, *naa, *scsiname, *uuid, *vendor, *value; 4513 int lun_number; 4514 int devidlen, idlen1, idlen2 = 0, len; 4515 4516 /* 4517 * We support only Direct Access, CD-ROM or Processor LUN types. 4518 */ 4519 switch (be_lun->lun_type) { 4520 case T_DIRECT: 4521 case T_PROCESSOR: 4522 case T_CDROM: 4523 break; 4524 case T_SEQUENTIAL: 4525 case T_CHANGER: 4526 default: 4527 return (EINVAL); 4528 } 4529 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK | M_ZERO); 4530 4531 lun->pending_sense = malloc(sizeof(struct scsi_sense_data *) * 4532 ctl_max_ports, M_DEVBUF, M_WAITOK | M_ZERO); 4533 lun->pending_ua = malloc(sizeof(ctl_ua_type *) * ctl_max_ports, 4534 M_DEVBUF, M_WAITOK | M_ZERO); 4535 lun->pr_keys = malloc(sizeof(uint64_t *) * ctl_max_ports, 4536 M_DEVBUF, M_WAITOK | M_ZERO); 4537 4538 /* Generate LUN ID. */ 4539 devidlen = max(CTL_DEVID_MIN_LEN, 4540 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4541 idlen1 = sizeof(*t10id) + devidlen; 4542 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4543 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4544 if (scsiname != NULL) { 4545 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4546 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4547 } 4548 eui = ctl_get_opt(&be_lun->options, "eui"); 4549 if (eui != NULL) { 4550 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4551 } 4552 naa = ctl_get_opt(&be_lun->options, "naa"); 4553 if (naa != NULL) { 4554 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4555 } 4556 uuid = ctl_get_opt(&be_lun->options, "uuid"); 4557 if (uuid != NULL) { 4558 len += sizeof(struct scsi_vpd_id_descriptor) + 18; 4559 } 4560 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4561 M_CTL, M_WAITOK | M_ZERO); 4562 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4563 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4564 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4565 desc->length = idlen1; 4566 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4567 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4568 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4569 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4570 } else { 4571 strncpy(t10id->vendor, vendor, 4572 min(sizeof(t10id->vendor), strlen(vendor))); 4573 } 4574 strncpy((char *)t10id->vendor_spec_id, 4575 (char *)be_lun->device_id, devidlen); 4576 if (scsiname != NULL) { 4577 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4578 desc->length); 4579 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4580 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4581 SVPD_ID_TYPE_SCSI_NAME; 4582 desc->length = idlen2; 4583 strlcpy(desc->identifier, scsiname, idlen2); 4584 } 4585 if (eui != NULL) { 4586 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4587 desc->length); 4588 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4589 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4590 SVPD_ID_TYPE_EUI64; 4591 desc->length = hex2bin(eui, desc->identifier, 16); 4592 desc->length = desc->length > 12 ? 16 : 4593 (desc->length > 8 ? 12 : 8); 4594 len -= 16 - desc->length; 4595 } 4596 if (naa != NULL) { 4597 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4598 desc->length); 4599 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4600 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4601 SVPD_ID_TYPE_NAA; 4602 desc->length = hex2bin(naa, desc->identifier, 16); 4603 desc->length = desc->length > 8 ? 16 : 8; 4604 len -= 16 - desc->length; 4605 } 4606 if (uuid != NULL) { 4607 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4608 desc->length); 4609 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4610 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4611 SVPD_ID_TYPE_UUID; 4612 desc->identifier[0] = 0x10; 4613 hex2bin(uuid, &desc->identifier[2], 16); 4614 desc->length = 18; 4615 } 4616 lun->lun_devid->len = len; 4617 4618 mtx_lock(&ctl_softc->ctl_lock); 4619 /* 4620 * See if the caller requested a particular LUN number. If so, see 4621 * if it is available. Otherwise, allocate the first available LUN. 4622 */ 4623 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4624 if ((be_lun->req_lun_id > (ctl_max_luns - 1)) 4625 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4626 mtx_unlock(&ctl_softc->ctl_lock); 4627 if (be_lun->req_lun_id > (ctl_max_luns - 1)) { 4628 printf("ctl: requested LUN ID %d is higher " 4629 "than ctl_max_luns - 1 (%d)\n", 4630 be_lun->req_lun_id, ctl_max_luns - 1); 4631 } else { 4632 /* 4633 * XXX KDM return an error, or just assign 4634 * another LUN ID in this case?? 4635 */ 4636 printf("ctl: requested LUN ID %d is already " 4637 "in use\n", be_lun->req_lun_id); 4638 } 4639fail: 4640 free(lun->lun_devid, M_CTL); 4641 free(lun, M_CTL); 4642 return (ENOSPC); 4643 } 4644 lun_number = be_lun->req_lun_id; 4645 } else { 4646 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, 0, ctl_max_luns); 4647 if (lun_number == -1) { 4648 mtx_unlock(&ctl_softc->ctl_lock); 4649 printf("ctl: can't allocate LUN, out of LUNs\n"); 4650 goto fail; 4651 } 4652 } 4653 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4654 mtx_unlock(&ctl_softc->ctl_lock); 4655 4656 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4657 lun->lun = lun_number; 4658 lun->be_lun = be_lun; 4659 /* 4660 * The processor LUN is always enabled. Disk LUNs come on line 4661 * disabled, and must be enabled by the backend. 4662 */ 4663 lun->flags |= CTL_LUN_DISABLED; 4664 lun->backend = be_lun->be; 4665 be_lun->ctl_lun = lun; 4666 be_lun->lun_id = lun_number; 4667 if (be_lun->flags & CTL_LUN_FLAG_EJECTED) 4668 lun->flags |= CTL_LUN_EJECTED; 4669 if (be_lun->flags & CTL_LUN_FLAG_NO_MEDIA) 4670 lun->flags |= CTL_LUN_NO_MEDIA; 4671 if (be_lun->flags & CTL_LUN_FLAG_STOPPED) 4672 lun->flags |= CTL_LUN_STOPPED; 4673 4674 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4675 lun->flags |= CTL_LUN_PRIMARY_SC; 4676 4677 value = ctl_get_opt(&be_lun->options, "removable"); 4678 if (value != NULL) { 4679 if (strcmp(value, "on") == 0) 4680 lun->flags |= CTL_LUN_REMOVABLE; 4681 } else if (be_lun->lun_type == T_CDROM) 4682 lun->flags |= CTL_LUN_REMOVABLE; 4683 4684 lun->ctl_softc = ctl_softc; 4685#ifdef CTL_TIME_IO 4686 lun->last_busy = getsbinuptime(); 4687#endif 4688 TAILQ_INIT(&lun->ooa_queue); 4689 STAILQ_INIT(&lun->error_list); 4690 lun->ie_reported = 1; 4691 callout_init_mtx(&lun->ie_callout, &lun->lun_lock, 0); 4692 ctl_tpc_lun_init(lun); 4693 if (lun->flags & CTL_LUN_REMOVABLE) { 4694 lun->prevent = malloc((CTL_MAX_INITIATORS + 31) / 32 * 4, 4695 M_CTL, M_WAITOK); 4696 } 4697 4698 /* 4699 * Initialize the mode and log page index. 4700 */ 4701 ctl_init_page_index(lun); 4702 ctl_init_log_page_index(lun); 4703 4704 /* Setup statistics gathering */ 4705#ifdef CTL_LEGACY_STATS 4706 lun->legacy_stats.device_type = be_lun->lun_type; 4707 lun->legacy_stats.lun_number = lun_number; 4708 lun->legacy_stats.blocksize = be_lun->blocksize; 4709 if (be_lun->blocksize == 0) 4710 lun->legacy_stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4711 lun->legacy_stats.ports = malloc(sizeof(struct ctl_lun_io_port_stats) * 4712 ctl_max_ports, M_DEVBUF, M_WAITOK | M_ZERO); 4713 for (len = 0; len < ctl_max_ports; len++) 4714 lun->legacy_stats.ports[len].targ_port = len; 4715#endif /* CTL_LEGACY_STATS */ 4716 lun->stats.item = lun_number; 4717 4718 /* 4719 * Now, before we insert this lun on the lun list, set the lun 4720 * inventory changed UA for all other luns. 4721 */ 4722 mtx_lock(&ctl_softc->ctl_lock); 4723 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4724 mtx_lock(&nlun->lun_lock); 4725 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4726 mtx_unlock(&nlun->lun_lock); 4727 } 4728 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4729 ctl_softc->ctl_luns[lun_number] = lun; 4730 ctl_softc->num_luns++; 4731 mtx_unlock(&ctl_softc->ctl_lock); 4732 4733 /* 4734 * We successfully added the LUN, attempt to enable it. 4735 */ 4736 if (ctl_enable_lun(lun) != 0) { 4737 printf("%s: ctl_enable_lun() failed!\n", __func__); 4738 mtx_lock(&ctl_softc->ctl_lock); 4739 STAILQ_REMOVE(&ctl_softc->lun_list, lun, ctl_lun, links); 4740 ctl_clear_mask(ctl_softc->ctl_lun_mask, lun_number); 4741 ctl_softc->ctl_luns[lun_number] = NULL; 4742 ctl_softc->num_luns--; 4743 mtx_unlock(&ctl_softc->ctl_lock); 4744 free(lun->lun_devid, M_CTL); 4745 free(lun, M_CTL); 4746 return (EIO); 4747 } 4748 4749 return (0); 4750} 4751 4752/* 4753 * Free LUN that has no active requests. 4754 */ 4755static int 4756ctl_free_lun(struct ctl_lun *lun) 4757{ 4758 struct ctl_softc *softc = lun->ctl_softc; 4759 struct ctl_lun *nlun; 4760 int i; 4761 4762 KASSERT(TAILQ_EMPTY(&lun->ooa_queue), 4763 ("Freeing a LUN %p with outstanding I/O!\n", lun)); 4764 4765 mtx_lock(&softc->ctl_lock); 4766 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4767 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4768 softc->ctl_luns[lun->lun] = NULL; 4769 softc->num_luns--; 4770 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4771 mtx_lock(&nlun->lun_lock); 4772 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4773 mtx_unlock(&nlun->lun_lock); 4774 } 4775 mtx_unlock(&softc->ctl_lock); 4776 4777 /* 4778 * Tell the backend to free resources, if this LUN has a backend. 4779 */ 4780 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4781 4782 lun->ie_reportcnt = UINT32_MAX; 4783 callout_drain(&lun->ie_callout); 4784 ctl_tpc_lun_shutdown(lun); 4785 mtx_destroy(&lun->lun_lock); 4786 free(lun->lun_devid, M_CTL); 4787 for (i = 0; i < ctl_max_ports; i++) 4788 free(lun->pending_ua[i], M_CTL); 4789 free(lun->pending_ua, M_DEVBUF); 4790 for (i = 0; i < ctl_max_ports; i++) 4791 free(lun->pr_keys[i], M_CTL); 4792 free(lun->pr_keys, M_DEVBUF); 4793 free(lun->write_buffer, M_CTL); 4794 free(lun->prevent, M_CTL); 4795 free(lun, M_CTL); 4796 4797 return (0); 4798} 4799 4800static int 4801ctl_enable_lun(struct ctl_lun *lun) 4802{ 4803 struct ctl_softc *softc; 4804 struct ctl_port *port, *nport; 4805 int retval; 4806 4807 softc = lun->ctl_softc; 4808 4809 mtx_lock(&softc->ctl_lock); 4810 mtx_lock(&lun->lun_lock); 4811 KASSERT((lun->flags & CTL_LUN_DISABLED) != 0, 4812 ("%s: LUN not disabled", __func__)); 4813 lun->flags &= ~CTL_LUN_DISABLED; 4814 mtx_unlock(&lun->lun_lock); 4815 4816 STAILQ_FOREACH_SAFE(port, &softc->port_list, links, nport) { 4817 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4818 port->lun_map != NULL || port->lun_enable == NULL) 4819 continue; 4820 4821 /* 4822 * Drop the lock while we call the FETD's enable routine. 4823 * This can lead to a callback into CTL (at least in the 4824 * case of the internal initiator frontend. 4825 */ 4826 mtx_unlock(&softc->ctl_lock); 4827 retval = port->lun_enable(port->targ_lun_arg, lun->lun); 4828 mtx_lock(&softc->ctl_lock); 4829 if (retval != 0) { 4830 printf("%s: FETD %s port %d returned error " 4831 "%d for lun_enable on lun %jd\n", 4832 __func__, port->port_name, port->targ_port, 4833 retval, (intmax_t)lun->lun); 4834 } 4835 } 4836 4837 mtx_unlock(&softc->ctl_lock); 4838 ctl_isc_announce_lun(lun); 4839 4840 return (0); 4841} 4842 4843static int 4844ctl_disable_lun(struct ctl_lun *lun) 4845{ 4846 struct ctl_softc *softc; 4847 struct ctl_port *port; 4848 int retval; 4849 4850 softc = lun->ctl_softc; 4851 4852 mtx_lock(&softc->ctl_lock); 4853 mtx_lock(&lun->lun_lock); 4854 KASSERT((lun->flags & CTL_LUN_DISABLED) == 0, 4855 ("%s: LUN not enabled", __func__)); 4856 lun->flags |= CTL_LUN_DISABLED; 4857 mtx_unlock(&lun->lun_lock); 4858 4859 STAILQ_FOREACH(port, &softc->port_list, links) { 4860 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4861 port->lun_map != NULL || port->lun_disable == NULL) 4862 continue; 4863 4864 /* 4865 * Drop the lock before we call the frontend's disable 4866 * routine, to avoid lock order reversals. 4867 * 4868 * XXX KDM what happens if the frontend list changes while 4869 * we're traversing it? It's unlikely, but should be handled. 4870 */ 4871 mtx_unlock(&softc->ctl_lock); 4872 retval = port->lun_disable(port->targ_lun_arg, lun->lun); 4873 mtx_lock(&softc->ctl_lock); 4874 if (retval != 0) { 4875 printf("%s: FETD %s port %d returned error " 4876 "%d for lun_disable on lun %jd\n", 4877 __func__, port->port_name, port->targ_port, 4878 retval, (intmax_t)lun->lun); 4879 } 4880 } 4881 4882 mtx_unlock(&softc->ctl_lock); 4883 ctl_isc_announce_lun(lun); 4884 4885 return (0); 4886} 4887 4888int 4889ctl_start_lun(struct ctl_be_lun *be_lun) 4890{ 4891 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4892 4893 mtx_lock(&lun->lun_lock); 4894 lun->flags &= ~CTL_LUN_STOPPED; 4895 mtx_unlock(&lun->lun_lock); 4896 return (0); 4897} 4898 4899int 4900ctl_stop_lun(struct ctl_be_lun *be_lun) 4901{ 4902 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4903 4904 mtx_lock(&lun->lun_lock); 4905 lun->flags |= CTL_LUN_STOPPED; 4906 mtx_unlock(&lun->lun_lock); 4907 return (0); 4908} 4909 4910int 4911ctl_lun_no_media(struct ctl_be_lun *be_lun) 4912{ 4913 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4914 4915 mtx_lock(&lun->lun_lock); 4916 lun->flags |= CTL_LUN_NO_MEDIA; 4917 mtx_unlock(&lun->lun_lock); 4918 return (0); 4919} 4920 4921int 4922ctl_lun_has_media(struct ctl_be_lun *be_lun) 4923{ 4924 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4925 union ctl_ha_msg msg; 4926 4927 mtx_lock(&lun->lun_lock); 4928 lun->flags &= ~(CTL_LUN_NO_MEDIA | CTL_LUN_EJECTED); 4929 if (lun->flags & CTL_LUN_REMOVABLE) 4930 ctl_est_ua_all(lun, -1, CTL_UA_MEDIUM_CHANGE); 4931 mtx_unlock(&lun->lun_lock); 4932 if ((lun->flags & CTL_LUN_REMOVABLE) && 4933 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4934 bzero(&msg.ua, sizeof(msg.ua)); 4935 msg.hdr.msg_type = CTL_MSG_UA; 4936 msg.hdr.nexus.initid = -1; 4937 msg.hdr.nexus.targ_port = -1; 4938 msg.hdr.nexus.targ_lun = lun->lun; 4939 msg.hdr.nexus.targ_mapped_lun = lun->lun; 4940 msg.ua.ua_all = 1; 4941 msg.ua.ua_set = 1; 4942 msg.ua.ua_type = CTL_UA_MEDIUM_CHANGE; 4943 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 4944 M_WAITOK); 4945 } 4946 return (0); 4947} 4948 4949int 4950ctl_lun_ejected(struct ctl_be_lun *be_lun) 4951{ 4952 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4953 4954 mtx_lock(&lun->lun_lock); 4955 lun->flags |= CTL_LUN_EJECTED; 4956 mtx_unlock(&lun->lun_lock); 4957 return (0); 4958} 4959 4960int 4961ctl_lun_primary(struct ctl_be_lun *be_lun) 4962{ 4963 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4964 4965 mtx_lock(&lun->lun_lock); 4966 lun->flags |= CTL_LUN_PRIMARY_SC; 4967 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4968 mtx_unlock(&lun->lun_lock); 4969 ctl_isc_announce_lun(lun); 4970 return (0); 4971} 4972 4973int 4974ctl_lun_secondary(struct ctl_be_lun *be_lun) 4975{ 4976 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4977 4978 mtx_lock(&lun->lun_lock); 4979 lun->flags &= ~CTL_LUN_PRIMARY_SC; 4980 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 4981 mtx_unlock(&lun->lun_lock); 4982 ctl_isc_announce_lun(lun); 4983 return (0); 4984} 4985 4986/* 4987 * Remove LUN. If there are active requests, wait for completion. 4988 * 4989 * Returns 0 for success, non-zero (errno) for failure. 4990 * Completion is reported to backed via the lun_shutdown() method. 4991 */ 4992int 4993ctl_remove_lun(struct ctl_be_lun *be_lun) 4994{ 4995 struct ctl_softc *softc; 4996 struct ctl_lun *lun; 4997 4998 lun = (struct ctl_lun *)be_lun->ctl_lun; 4999 softc = lun->ctl_softc; 5000 5001 ctl_disable_lun(lun); 5002 5003 mtx_lock(&lun->lun_lock); 5004 lun->flags |= CTL_LUN_INVALID; 5005 5006 /* 5007 * If there is nothing in the OOA queue, go ahead and free the LUN. 5008 * If we have something in the OOA queue, we'll free it when the 5009 * last I/O completes. 5010 */ 5011 if (TAILQ_EMPTY(&lun->ooa_queue)) { 5012 mtx_unlock(&lun->lun_lock); 5013 ctl_free_lun(lun); 5014 } else 5015 mtx_unlock(&lun->lun_lock); 5016 5017 return (0); 5018} 5019 5020void 5021ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5022{ 5023 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 5024 union ctl_ha_msg msg; 5025 5026 mtx_lock(&lun->lun_lock); 5027 ctl_est_ua_all(lun, -1, CTL_UA_CAPACITY_CHANGE); 5028 mtx_unlock(&lun->lun_lock); 5029 if (lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 5030 /* Send msg to other side. */ 5031 bzero(&msg.ua, sizeof(msg.ua)); 5032 msg.hdr.msg_type = CTL_MSG_UA; 5033 msg.hdr.nexus.initid = -1; 5034 msg.hdr.nexus.targ_port = -1; 5035 msg.hdr.nexus.targ_lun = lun->lun; 5036 msg.hdr.nexus.targ_mapped_lun = lun->lun; 5037 msg.ua.ua_all = 1; 5038 msg.ua.ua_set = 1; 5039 msg.ua.ua_type = CTL_UA_CAPACITY_CHANGE; 5040 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 5041 M_WAITOK); 5042 } 5043} 5044 5045/* 5046 * Backend "memory move is complete" callback for requests that never 5047 * make it down to say RAIDCore's configuration code. 5048 */ 5049int 5050ctl_config_move_done(union ctl_io *io) 5051{ 5052 int retval; 5053 5054 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5055 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 5056 ("Config I/O type isn't CTL_IO_SCSI (%d)!", io->io_hdr.io_type)); 5057 5058 if ((io->io_hdr.port_status != 0) && 5059 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5060 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5061 ctl_set_internal_failure(&io->scsiio, /*sks_valid*/ 1, 5062 /*retry_count*/ io->io_hdr.port_status); 5063 } else if (io->scsiio.kern_data_resid != 0 && 5064 (io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT && 5065 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5066 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5067 ctl_set_invalid_field_ciu(&io->scsiio); 5068 } 5069 5070 if (ctl_debug & CTL_DEBUG_CDB_DATA) 5071 ctl_data_print(io); 5072 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 5073 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5074 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 5075 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5076 /* 5077 * XXX KDM just assuming a single pointer here, and not a 5078 * S/G list. If we start using S/G lists for config data, 5079 * we'll need to know how to clean them up here as well. 5080 */ 5081 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5082 free(io->scsiio.kern_data_ptr, M_CTL); 5083 ctl_done(io); 5084 retval = CTL_RETVAL_COMPLETE; 5085 } else { 5086 /* 5087 * XXX KDM now we need to continue data movement. Some 5088 * options: 5089 * - call ctl_scsiio() again? We don't do this for data 5090 * writes, because for those at least we know ahead of 5091 * time where the write will go and how long it is. For 5092 * config writes, though, that information is largely 5093 * contained within the write itself, thus we need to 5094 * parse out the data again. 5095 * 5096 * - Call some other function once the data is in? 5097 */ 5098 5099 /* 5100 * XXX KDM call ctl_scsiio() again for now, and check flag 5101 * bits to see whether we're allocated or not. 5102 */ 5103 retval = ctl_scsiio(&io->scsiio); 5104 } 5105 return (retval); 5106} 5107 5108/* 5109 * This gets called by a backend driver when it is done with a 5110 * data_submit method. 5111 */ 5112void 5113ctl_data_submit_done(union ctl_io *io) 5114{ 5115 /* 5116 * If the IO_CONT flag is set, we need to call the supplied 5117 * function to continue processing the I/O, instead of completing 5118 * the I/O just yet. 5119 * 5120 * If there is an error, though, we don't want to keep processing. 5121 * Instead, just send status back to the initiator. 5122 */ 5123 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5124 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5125 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5126 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5127 io->scsiio.io_cont(io); 5128 return; 5129 } 5130 ctl_done(io); 5131} 5132 5133/* 5134 * This gets called by a backend driver when it is done with a 5135 * configuration write. 5136 */ 5137void 5138ctl_config_write_done(union ctl_io *io) 5139{ 5140 uint8_t *buf; 5141 5142 /* 5143 * If the IO_CONT flag is set, we need to call the supplied 5144 * function to continue processing the I/O, instead of completing 5145 * the I/O just yet. 5146 * 5147 * If there is an error, though, we don't want to keep processing. 5148 * Instead, just send status back to the initiator. 5149 */ 5150 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5151 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5152 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5153 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5154 io->scsiio.io_cont(io); 5155 return; 5156 } 5157 /* 5158 * Since a configuration write can be done for commands that actually 5159 * have data allocated, like write buffer, and commands that have 5160 * no data, like start/stop unit, we need to check here. 5161 */ 5162 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5163 buf = io->scsiio.kern_data_ptr; 5164 else 5165 buf = NULL; 5166 ctl_done(io); 5167 if (buf) 5168 free(buf, M_CTL); 5169} 5170 5171void 5172ctl_config_read_done(union ctl_io *io) 5173{ 5174 uint8_t *buf; 5175 5176 /* 5177 * If there is some error -- we are done, skip data transfer. 5178 */ 5179 if ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0 || 5180 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5181 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) { 5182 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5183 buf = io->scsiio.kern_data_ptr; 5184 else 5185 buf = NULL; 5186 ctl_done(io); 5187 if (buf) 5188 free(buf, M_CTL); 5189 return; 5190 } 5191 5192 /* 5193 * If the IO_CONT flag is set, we need to call the supplied 5194 * function to continue processing the I/O, instead of completing 5195 * the I/O just yet. 5196 */ 5197 if (io->io_hdr.flags & CTL_FLAG_IO_CONT) { 5198 io->scsiio.io_cont(io); 5199 return; 5200 } 5201 5202 ctl_datamove(io); 5203} 5204 5205/* 5206 * SCSI release command. 5207 */ 5208int 5209ctl_scsi_release(struct ctl_scsiio *ctsio) 5210{ 5211 struct ctl_lun *lun = CTL_LUN(ctsio); 5212 uint32_t residx; 5213 5214 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5215 5216 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5217 5218 /* 5219 * XXX KDM right now, we only support LUN reservation. We don't 5220 * support 3rd party reservations, or extent reservations, which 5221 * might actually need the parameter list. If we've gotten this 5222 * far, we've got a LUN reservation. Anything else got kicked out 5223 * above. So, according to SPC, ignore the length. 5224 */ 5225 5226 mtx_lock(&lun->lun_lock); 5227 5228 /* 5229 * According to SPC, it is not an error for an intiator to attempt 5230 * to release a reservation on a LUN that isn't reserved, or that 5231 * is reserved by another initiator. The reservation can only be 5232 * released, though, by the initiator who made it or by one of 5233 * several reset type events. 5234 */ 5235 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5236 lun->flags &= ~CTL_LUN_RESERVED; 5237 5238 mtx_unlock(&lun->lun_lock); 5239 5240 ctl_set_success(ctsio); 5241 ctl_done((union ctl_io *)ctsio); 5242 return (CTL_RETVAL_COMPLETE); 5243} 5244 5245int 5246ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5247{ 5248 struct ctl_lun *lun = CTL_LUN(ctsio); 5249 uint32_t residx; 5250 5251 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5252 5253 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5254 5255 /* 5256 * XXX KDM right now, we only support LUN reservation. We don't 5257 * support 3rd party reservations, or extent reservations, which 5258 * might actually need the parameter list. If we've gotten this 5259 * far, we've got a LUN reservation. Anything else got kicked out 5260 * above. So, according to SPC, ignore the length. 5261 */ 5262 5263 mtx_lock(&lun->lun_lock); 5264 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5265 ctl_set_reservation_conflict(ctsio); 5266 goto bailout; 5267 } 5268 5269 /* SPC-3 exceptions to SPC-2 RESERVE and RELEASE behavior. */ 5270 if (lun->flags & CTL_LUN_PR_RESERVED) { 5271 ctl_set_success(ctsio); 5272 goto bailout; 5273 } 5274 5275 lun->flags |= CTL_LUN_RESERVED; 5276 lun->res_idx = residx; 5277 ctl_set_success(ctsio); 5278 5279bailout: 5280 mtx_unlock(&lun->lun_lock); 5281 ctl_done((union ctl_io *)ctsio); 5282 return (CTL_RETVAL_COMPLETE); 5283} 5284 5285int 5286ctl_start_stop(struct ctl_scsiio *ctsio) 5287{ 5288 struct ctl_lun *lun = CTL_LUN(ctsio); 5289 struct scsi_start_stop_unit *cdb; 5290 int retval; 5291 5292 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5293 5294 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5295 5296 if ((cdb->how & SSS_PC_MASK) == 0) { 5297 if ((lun->flags & CTL_LUN_PR_RESERVED) && 5298 (cdb->how & SSS_START) == 0) { 5299 uint32_t residx; 5300 5301 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5302 if (ctl_get_prkey(lun, residx) == 0 || 5303 (lun->pr_res_idx != residx && lun->pr_res_type < 4)) { 5304 5305 ctl_set_reservation_conflict(ctsio); 5306 ctl_done((union ctl_io *)ctsio); 5307 return (CTL_RETVAL_COMPLETE); 5308 } 5309 } 5310 5311 if ((cdb->how & SSS_LOEJ) && 5312 (lun->flags & CTL_LUN_REMOVABLE) == 0) { 5313 ctl_set_invalid_field(ctsio, 5314 /*sks_valid*/ 1, 5315 /*command*/ 1, 5316 /*field*/ 4, 5317 /*bit_valid*/ 1, 5318 /*bit*/ 1); 5319 ctl_done((union ctl_io *)ctsio); 5320 return (CTL_RETVAL_COMPLETE); 5321 } 5322 5323 if ((cdb->how & SSS_START) == 0 && (cdb->how & SSS_LOEJ) && 5324 lun->prevent_count > 0) { 5325 /* "Medium removal prevented" */ 5326 ctl_set_sense(ctsio, /*current_error*/ 1, 5327 /*sense_key*/(lun->flags & CTL_LUN_NO_MEDIA) ? 5328 SSD_KEY_NOT_READY : SSD_KEY_ILLEGAL_REQUEST, 5329 /*asc*/ 0x53, /*ascq*/ 0x02, SSD_ELEM_NONE); 5330 ctl_done((union ctl_io *)ctsio); 5331 return (CTL_RETVAL_COMPLETE); 5332 } 5333 } 5334 5335 retval = lun->backend->config_write((union ctl_io *)ctsio); 5336 return (retval); 5337} 5338 5339int 5340ctl_prevent_allow(struct ctl_scsiio *ctsio) 5341{ 5342 struct ctl_lun *lun = CTL_LUN(ctsio); 5343 struct scsi_prevent *cdb; 5344 int retval; 5345 uint32_t initidx; 5346 5347 CTL_DEBUG_PRINT(("ctl_prevent_allow\n")); 5348 5349 cdb = (struct scsi_prevent *)ctsio->cdb; 5350 5351 if ((lun->flags & CTL_LUN_REMOVABLE) == 0 || lun->prevent == NULL) { 5352 ctl_set_invalid_opcode(ctsio); 5353 ctl_done((union ctl_io *)ctsio); 5354 return (CTL_RETVAL_COMPLETE); 5355 } 5356 5357 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5358 mtx_lock(&lun->lun_lock); 5359 if ((cdb->how & PR_PREVENT) && 5360 ctl_is_set(lun->prevent, initidx) == 0) { 5361 ctl_set_mask(lun->prevent, initidx); 5362 lun->prevent_count++; 5363 } else if ((cdb->how & PR_PREVENT) == 0 && 5364 ctl_is_set(lun->prevent, initidx)) { 5365 ctl_clear_mask(lun->prevent, initidx); 5366 lun->prevent_count--; 5367 } 5368 mtx_unlock(&lun->lun_lock); 5369 retval = lun->backend->config_write((union ctl_io *)ctsio); 5370 return (retval); 5371} 5372 5373/* 5374 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5375 * we don't really do anything with the LBA and length fields if the user 5376 * passes them in. Instead we'll just flush out the cache for the entire 5377 * LUN. 5378 */ 5379int 5380ctl_sync_cache(struct ctl_scsiio *ctsio) 5381{ 5382 struct ctl_lun *lun = CTL_LUN(ctsio); 5383 struct ctl_lba_len_flags *lbalen; 5384 uint64_t starting_lba; 5385 uint32_t block_count; 5386 int retval; 5387 uint8_t byte2; 5388 5389 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5390 5391 retval = 0; 5392 5393 switch (ctsio->cdb[0]) { 5394 case SYNCHRONIZE_CACHE: { 5395 struct scsi_sync_cache *cdb; 5396 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5397 5398 starting_lba = scsi_4btoul(cdb->begin_lba); 5399 block_count = scsi_2btoul(cdb->lb_count); 5400 byte2 = cdb->byte2; 5401 break; 5402 } 5403 case SYNCHRONIZE_CACHE_16: { 5404 struct scsi_sync_cache_16 *cdb; 5405 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5406 5407 starting_lba = scsi_8btou64(cdb->begin_lba); 5408 block_count = scsi_4btoul(cdb->lb_count); 5409 byte2 = cdb->byte2; 5410 break; 5411 } 5412 default: 5413 ctl_set_invalid_opcode(ctsio); 5414 ctl_done((union ctl_io *)ctsio); 5415 goto bailout; 5416 break; /* NOTREACHED */ 5417 } 5418 5419 /* 5420 * We check the LBA and length, but don't do anything with them. 5421 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5422 * get flushed. This check will just help satisfy anyone who wants 5423 * to see an error for an out of range LBA. 5424 */ 5425 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5426 ctl_set_lba_out_of_range(ctsio, 5427 MAX(starting_lba, lun->be_lun->maxlba + 1)); 5428 ctl_done((union ctl_io *)ctsio); 5429 goto bailout; 5430 } 5431 5432 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5433 lbalen->lba = starting_lba; 5434 lbalen->len = block_count; 5435 lbalen->flags = byte2; 5436 retval = lun->backend->config_write((union ctl_io *)ctsio); 5437 5438bailout: 5439 return (retval); 5440} 5441 5442int 5443ctl_format(struct ctl_scsiio *ctsio) 5444{ 5445 struct scsi_format *cdb; 5446 int length, defect_list_len; 5447 5448 CTL_DEBUG_PRINT(("ctl_format\n")); 5449 5450 cdb = (struct scsi_format *)ctsio->cdb; 5451 5452 length = 0; 5453 if (cdb->byte2 & SF_FMTDATA) { 5454 if (cdb->byte2 & SF_LONGLIST) 5455 length = sizeof(struct scsi_format_header_long); 5456 else 5457 length = sizeof(struct scsi_format_header_short); 5458 } 5459 5460 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5461 && (length > 0)) { 5462 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5463 ctsio->kern_data_len = length; 5464 ctsio->kern_total_len = length; 5465 ctsio->kern_rel_offset = 0; 5466 ctsio->kern_sg_entries = 0; 5467 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5468 ctsio->be_move_done = ctl_config_move_done; 5469 ctl_datamove((union ctl_io *)ctsio); 5470 5471 return (CTL_RETVAL_COMPLETE); 5472 } 5473 5474 defect_list_len = 0; 5475 5476 if (cdb->byte2 & SF_FMTDATA) { 5477 if (cdb->byte2 & SF_LONGLIST) { 5478 struct scsi_format_header_long *header; 5479 5480 header = (struct scsi_format_header_long *) 5481 ctsio->kern_data_ptr; 5482 5483 defect_list_len = scsi_4btoul(header->defect_list_len); 5484 if (defect_list_len != 0) { 5485 ctl_set_invalid_field(ctsio, 5486 /*sks_valid*/ 1, 5487 /*command*/ 0, 5488 /*field*/ 2, 5489 /*bit_valid*/ 0, 5490 /*bit*/ 0); 5491 goto bailout; 5492 } 5493 } else { 5494 struct scsi_format_header_short *header; 5495 5496 header = (struct scsi_format_header_short *) 5497 ctsio->kern_data_ptr; 5498 5499 defect_list_len = scsi_2btoul(header->defect_list_len); 5500 if (defect_list_len != 0) { 5501 ctl_set_invalid_field(ctsio, 5502 /*sks_valid*/ 1, 5503 /*command*/ 0, 5504 /*field*/ 2, 5505 /*bit_valid*/ 0, 5506 /*bit*/ 0); 5507 goto bailout; 5508 } 5509 } 5510 } 5511 5512 ctl_set_success(ctsio); 5513bailout: 5514 5515 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5516 free(ctsio->kern_data_ptr, M_CTL); 5517 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5518 } 5519 5520 ctl_done((union ctl_io *)ctsio); 5521 return (CTL_RETVAL_COMPLETE); 5522} 5523 5524int 5525ctl_read_buffer(struct ctl_scsiio *ctsio) 5526{ 5527 struct ctl_lun *lun = CTL_LUN(ctsio); 5528 uint64_t buffer_offset; 5529 uint32_t len; 5530 uint8_t byte2; 5531 static uint8_t descr[4]; 5532 static uint8_t echo_descr[4] = { 0 }; 5533 5534 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5535 5536 switch (ctsio->cdb[0]) { 5537 case READ_BUFFER: { 5538 struct scsi_read_buffer *cdb; 5539 5540 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5541 buffer_offset = scsi_3btoul(cdb->offset); 5542 len = scsi_3btoul(cdb->length); 5543 byte2 = cdb->byte2; 5544 break; 5545 } 5546 case READ_BUFFER_16: { 5547 struct scsi_read_buffer_16 *cdb; 5548 5549 cdb = (struct scsi_read_buffer_16 *)ctsio->cdb; 5550 buffer_offset = scsi_8btou64(cdb->offset); 5551 len = scsi_4btoul(cdb->length); 5552 byte2 = cdb->byte2; 5553 break; 5554 } 5555 default: /* This shouldn't happen. */ 5556 ctl_set_invalid_opcode(ctsio); 5557 ctl_done((union ctl_io *)ctsio); 5558 return (CTL_RETVAL_COMPLETE); 5559 } 5560 5561 if (buffer_offset > CTL_WRITE_BUFFER_SIZE || 5562 buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5563 ctl_set_invalid_field(ctsio, 5564 /*sks_valid*/ 1, 5565 /*command*/ 1, 5566 /*field*/ 6, 5567 /*bit_valid*/ 0, 5568 /*bit*/ 0); 5569 ctl_done((union ctl_io *)ctsio); 5570 return (CTL_RETVAL_COMPLETE); 5571 } 5572 5573 if ((byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5574 descr[0] = 0; 5575 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5576 ctsio->kern_data_ptr = descr; 5577 len = min(len, sizeof(descr)); 5578 } else if ((byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5579 ctsio->kern_data_ptr = echo_descr; 5580 len = min(len, sizeof(echo_descr)); 5581 } else { 5582 if (lun->write_buffer == NULL) { 5583 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5584 M_CTL, M_WAITOK); 5585 } 5586 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5587 } 5588 ctsio->kern_data_len = len; 5589 ctsio->kern_total_len = len; 5590 ctsio->kern_rel_offset = 0; 5591 ctsio->kern_sg_entries = 0; 5592 ctl_set_success(ctsio); 5593 ctsio->be_move_done = ctl_config_move_done; 5594 ctl_datamove((union ctl_io *)ctsio); 5595 return (CTL_RETVAL_COMPLETE); 5596} 5597 5598int 5599ctl_write_buffer(struct ctl_scsiio *ctsio) 5600{ 5601 struct ctl_lun *lun = CTL_LUN(ctsio); 5602 struct scsi_write_buffer *cdb; 5603 int buffer_offset, len; 5604 5605 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5606 5607 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5608 5609 len = scsi_3btoul(cdb->length); 5610 buffer_offset = scsi_3btoul(cdb->offset); 5611 5612 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5613 ctl_set_invalid_field(ctsio, 5614 /*sks_valid*/ 1, 5615 /*command*/ 1, 5616 /*field*/ 6, 5617 /*bit_valid*/ 0, 5618 /*bit*/ 0); 5619 ctl_done((union ctl_io *)ctsio); 5620 return (CTL_RETVAL_COMPLETE); 5621 } 5622 5623 /* 5624 * If we've got a kernel request that hasn't been malloced yet, 5625 * malloc it and tell the caller the data buffer is here. 5626 */ 5627 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5628 if (lun->write_buffer == NULL) { 5629 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5630 M_CTL, M_WAITOK); 5631 } 5632 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5633 ctsio->kern_data_len = len; 5634 ctsio->kern_total_len = len; 5635 ctsio->kern_rel_offset = 0; 5636 ctsio->kern_sg_entries = 0; 5637 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5638 ctsio->be_move_done = ctl_config_move_done; 5639 ctl_datamove((union ctl_io *)ctsio); 5640 5641 return (CTL_RETVAL_COMPLETE); 5642 } 5643 5644 ctl_set_success(ctsio); 5645 ctl_done((union ctl_io *)ctsio); 5646 return (CTL_RETVAL_COMPLETE); 5647} 5648 5649int 5650ctl_write_same(struct ctl_scsiio *ctsio) 5651{ 5652 struct ctl_lun *lun = CTL_LUN(ctsio); 5653 struct ctl_lba_len_flags *lbalen; 5654 uint64_t lba; 5655 uint32_t num_blocks; 5656 int len, retval; 5657 uint8_t byte2; 5658 5659 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5660 5661 switch (ctsio->cdb[0]) { 5662 case WRITE_SAME_10: { 5663 struct scsi_write_same_10 *cdb; 5664 5665 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5666 5667 lba = scsi_4btoul(cdb->addr); 5668 num_blocks = scsi_2btoul(cdb->length); 5669 byte2 = cdb->byte2; 5670 break; 5671 } 5672 case WRITE_SAME_16: { 5673 struct scsi_write_same_16 *cdb; 5674 5675 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5676 5677 lba = scsi_8btou64(cdb->addr); 5678 num_blocks = scsi_4btoul(cdb->length); 5679 byte2 = cdb->byte2; 5680 break; 5681 } 5682 default: 5683 /* 5684 * We got a command we don't support. This shouldn't 5685 * happen, commands should be filtered out above us. 5686 */ 5687 ctl_set_invalid_opcode(ctsio); 5688 ctl_done((union ctl_io *)ctsio); 5689 5690 return (CTL_RETVAL_COMPLETE); 5691 break; /* NOTREACHED */ 5692 } 5693 5694 /* ANCHOR flag can be used only together with UNMAP */ 5695 if ((byte2 & SWS_UNMAP) == 0 && (byte2 & SWS_ANCHOR) != 0) { 5696 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5697 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5698 ctl_done((union ctl_io *)ctsio); 5699 return (CTL_RETVAL_COMPLETE); 5700 } 5701 5702 /* 5703 * The first check is to make sure we're in bounds, the second 5704 * check is to catch wrap-around problems. If the lba + num blocks 5705 * is less than the lba, then we've wrapped around and the block 5706 * range is invalid anyway. 5707 */ 5708 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5709 || ((lba + num_blocks) < lba)) { 5710 ctl_set_lba_out_of_range(ctsio, 5711 MAX(lba, lun->be_lun->maxlba + 1)); 5712 ctl_done((union ctl_io *)ctsio); 5713 return (CTL_RETVAL_COMPLETE); 5714 } 5715 5716 /* Zero number of blocks means "to the last logical block" */ 5717 if (num_blocks == 0) { 5718 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5719 ctl_set_invalid_field(ctsio, 5720 /*sks_valid*/ 0, 5721 /*command*/ 1, 5722 /*field*/ 0, 5723 /*bit_valid*/ 0, 5724 /*bit*/ 0); 5725 ctl_done((union ctl_io *)ctsio); 5726 return (CTL_RETVAL_COMPLETE); 5727 } 5728 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5729 } 5730 5731 len = lun->be_lun->blocksize; 5732 5733 /* 5734 * If we've got a kernel request that hasn't been malloced yet, 5735 * malloc it and tell the caller the data buffer is here. 5736 */ 5737 if ((byte2 & SWS_NDOB) == 0 && 5738 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5739 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK); 5740 ctsio->kern_data_len = len; 5741 ctsio->kern_total_len = len; 5742 ctsio->kern_rel_offset = 0; 5743 ctsio->kern_sg_entries = 0; 5744 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5745 ctsio->be_move_done = ctl_config_move_done; 5746 ctl_datamove((union ctl_io *)ctsio); 5747 5748 return (CTL_RETVAL_COMPLETE); 5749 } 5750 5751 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5752 lbalen->lba = lba; 5753 lbalen->len = num_blocks; 5754 lbalen->flags = byte2; 5755 retval = lun->backend->config_write((union ctl_io *)ctsio); 5756 5757 return (retval); 5758} 5759 5760int 5761ctl_unmap(struct ctl_scsiio *ctsio) 5762{ 5763 struct ctl_lun *lun = CTL_LUN(ctsio); 5764 struct scsi_unmap *cdb; 5765 struct ctl_ptr_len_flags *ptrlen; 5766 struct scsi_unmap_header *hdr; 5767 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5768 uint64_t lba; 5769 uint32_t num_blocks; 5770 int len, retval; 5771 uint8_t byte2; 5772 5773 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5774 5775 cdb = (struct scsi_unmap *)ctsio->cdb; 5776 len = scsi_2btoul(cdb->length); 5777 byte2 = cdb->byte2; 5778 5779 /* 5780 * If we've got a kernel request that hasn't been malloced yet, 5781 * malloc it and tell the caller the data buffer is here. 5782 */ 5783 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5784 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK); 5785 ctsio->kern_data_len = len; 5786 ctsio->kern_total_len = len; 5787 ctsio->kern_rel_offset = 0; 5788 ctsio->kern_sg_entries = 0; 5789 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5790 ctsio->be_move_done = ctl_config_move_done; 5791 ctl_datamove((union ctl_io *)ctsio); 5792 5793 return (CTL_RETVAL_COMPLETE); 5794 } 5795 5796 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5797 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5798 if (len < sizeof (*hdr) || 5799 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5800 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5801 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5802 ctl_set_invalid_field(ctsio, 5803 /*sks_valid*/ 0, 5804 /*command*/ 0, 5805 /*field*/ 0, 5806 /*bit_valid*/ 0, 5807 /*bit*/ 0); 5808 goto done; 5809 } 5810 len = scsi_2btoul(hdr->desc_length); 5811 buf = (struct scsi_unmap_desc *)(hdr + 1); 5812 end = buf + len / sizeof(*buf); 5813 5814 endnz = buf; 5815 for (range = buf; range < end; range++) { 5816 lba = scsi_8btou64(range->lba); 5817 num_blocks = scsi_4btoul(range->length); 5818 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5819 || ((lba + num_blocks) < lba)) { 5820 ctl_set_lba_out_of_range(ctsio, 5821 MAX(lba, lun->be_lun->maxlba + 1)); 5822 ctl_done((union ctl_io *)ctsio); 5823 return (CTL_RETVAL_COMPLETE); 5824 } 5825 if (num_blocks != 0) 5826 endnz = range + 1; 5827 } 5828 5829 /* 5830 * Block backend can not handle zero last range. 5831 * Filter it out and return if there is nothing left. 5832 */ 5833 len = (uint8_t *)endnz - (uint8_t *)buf; 5834 if (len == 0) { 5835 ctl_set_success(ctsio); 5836 goto done; 5837 } 5838 5839 mtx_lock(&lun->lun_lock); 5840 ptrlen = (struct ctl_ptr_len_flags *) 5841 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5842 ptrlen->ptr = (void *)buf; 5843 ptrlen->len = len; 5844 ptrlen->flags = byte2; 5845 ctl_try_unblock_others(lun, (union ctl_io *)ctsio, FALSE); 5846 mtx_unlock(&lun->lun_lock); 5847 5848 retval = lun->backend->config_write((union ctl_io *)ctsio); 5849 return (retval); 5850 5851done: 5852 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5853 free(ctsio->kern_data_ptr, M_CTL); 5854 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5855 } 5856 ctl_done((union ctl_io *)ctsio); 5857 return (CTL_RETVAL_COMPLETE); 5858} 5859 5860int 5861ctl_default_page_handler(struct ctl_scsiio *ctsio, 5862 struct ctl_page_index *page_index, uint8_t *page_ptr) 5863{ 5864 struct ctl_lun *lun = CTL_LUN(ctsio); 5865 uint8_t *current_cp; 5866 int set_ua; 5867 uint32_t initidx; 5868 5869 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5870 set_ua = 0; 5871 5872 current_cp = (page_index->page_data + (page_index->page_len * 5873 CTL_PAGE_CURRENT)); 5874 5875 mtx_lock(&lun->lun_lock); 5876 if (memcmp(current_cp, page_ptr, page_index->page_len)) { 5877 memcpy(current_cp, page_ptr, page_index->page_len); 5878 set_ua = 1; 5879 } 5880 if (set_ua != 0) 5881 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 5882 mtx_unlock(&lun->lun_lock); 5883 if (set_ua) { 5884 ctl_isc_announce_mode(lun, 5885 ctl_get_initindex(&ctsio->io_hdr.nexus), 5886 page_index->page_code, page_index->subpage); 5887 } 5888 return (CTL_RETVAL_COMPLETE); 5889} 5890 5891static void 5892ctl_ie_timer(void *arg) 5893{ 5894 struct ctl_lun *lun = arg; 5895 uint64_t t; 5896 5897 if (lun->ie_asc == 0) 5898 return; 5899 5900 if (lun->MODE_IE.mrie == SIEP_MRIE_UA) 5901 ctl_est_ua_all(lun, -1, CTL_UA_IE); 5902 else 5903 lun->ie_reported = 0; 5904 5905 if (lun->ie_reportcnt < scsi_4btoul(lun->MODE_IE.report_count)) { 5906 lun->ie_reportcnt++; 5907 t = scsi_4btoul(lun->MODE_IE.interval_timer); 5908 if (t == 0 || t == UINT32_MAX) 5909 t = 3000; /* 5 min */ 5910 callout_schedule(&lun->ie_callout, t * hz / 10); 5911 } 5912} 5913 5914int 5915ctl_ie_page_handler(struct ctl_scsiio *ctsio, 5916 struct ctl_page_index *page_index, uint8_t *page_ptr) 5917{ 5918 struct ctl_lun *lun = CTL_LUN(ctsio); 5919 struct scsi_info_exceptions_page *pg; 5920 uint64_t t; 5921 5922 (void)ctl_default_page_handler(ctsio, page_index, page_ptr); 5923 5924 pg = (struct scsi_info_exceptions_page *)page_ptr; 5925 mtx_lock(&lun->lun_lock); 5926 if (pg->info_flags & SIEP_FLAGS_TEST) { 5927 lun->ie_asc = 0x5d; 5928 lun->ie_ascq = 0xff; 5929 if (pg->mrie == SIEP_MRIE_UA) { 5930 ctl_est_ua_all(lun, -1, CTL_UA_IE); 5931 lun->ie_reported = 1; 5932 } else { 5933 ctl_clr_ua_all(lun, -1, CTL_UA_IE); 5934 lun->ie_reported = -1; 5935 } 5936 lun->ie_reportcnt = 1; 5937 if (lun->ie_reportcnt < scsi_4btoul(pg->report_count)) { 5938 lun->ie_reportcnt++; 5939 t = scsi_4btoul(pg->interval_timer); 5940 if (t == 0 || t == UINT32_MAX) 5941 t = 3000; /* 5 min */ 5942 callout_reset(&lun->ie_callout, t * hz / 10, 5943 ctl_ie_timer, lun); 5944 } 5945 } else { 5946 lun->ie_asc = 0; 5947 lun->ie_ascq = 0; 5948 lun->ie_reported = 1; 5949 ctl_clr_ua_all(lun, -1, CTL_UA_IE); 5950 lun->ie_reportcnt = UINT32_MAX; 5951 callout_stop(&lun->ie_callout); 5952 } 5953 mtx_unlock(&lun->lun_lock); 5954 return (CTL_RETVAL_COMPLETE); 5955} 5956 5957static int 5958ctl_do_mode_select(union ctl_io *io) 5959{ 5960 struct ctl_lun *lun = CTL_LUN(io); 5961 struct scsi_mode_page_header *page_header; 5962 struct ctl_page_index *page_index; 5963 struct ctl_scsiio *ctsio; 5964 int page_len, page_len_offset, page_len_size; 5965 union ctl_modepage_info *modepage_info; 5966 uint16_t *len_left, *len_used; 5967 int retval, i; 5968 5969 ctsio = &io->scsiio; 5970 page_index = NULL; 5971 page_len = 0; 5972 5973 modepage_info = (union ctl_modepage_info *) 5974 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 5975 len_left = &modepage_info->header.len_left; 5976 len_used = &modepage_info->header.len_used; 5977 5978do_next_page: 5979 5980 page_header = (struct scsi_mode_page_header *) 5981 (ctsio->kern_data_ptr + *len_used); 5982 5983 if (*len_left == 0) { 5984 free(ctsio->kern_data_ptr, M_CTL); 5985 ctl_set_success(ctsio); 5986 ctl_done((union ctl_io *)ctsio); 5987 return (CTL_RETVAL_COMPLETE); 5988 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 5989 5990 free(ctsio->kern_data_ptr, M_CTL); 5991 ctl_set_param_len_error(ctsio); 5992 ctl_done((union ctl_io *)ctsio); 5993 return (CTL_RETVAL_COMPLETE); 5994 5995 } else if ((page_header->page_code & SMPH_SPF) 5996 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 5997 5998 free(ctsio->kern_data_ptr, M_CTL); 5999 ctl_set_param_len_error(ctsio); 6000 ctl_done((union ctl_io *)ctsio); 6001 return (CTL_RETVAL_COMPLETE); 6002 } 6003 6004 6005 /* 6006 * XXX KDM should we do something with the block descriptor? 6007 */ 6008 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6009 page_index = &lun->mode_pages.index[i]; 6010 if (lun->be_lun->lun_type == T_DIRECT && 6011 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6012 continue; 6013 if (lun->be_lun->lun_type == T_PROCESSOR && 6014 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6015 continue; 6016 if (lun->be_lun->lun_type == T_CDROM && 6017 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6018 continue; 6019 6020 if ((page_index->page_code & SMPH_PC_MASK) != 6021 (page_header->page_code & SMPH_PC_MASK)) 6022 continue; 6023 6024 /* 6025 * If neither page has a subpage code, then we've got a 6026 * match. 6027 */ 6028 if (((page_index->page_code & SMPH_SPF) == 0) 6029 && ((page_header->page_code & SMPH_SPF) == 0)) { 6030 page_len = page_header->page_length; 6031 break; 6032 } 6033 6034 /* 6035 * If both pages have subpages, then the subpage numbers 6036 * have to match. 6037 */ 6038 if ((page_index->page_code & SMPH_SPF) 6039 && (page_header->page_code & SMPH_SPF)) { 6040 struct scsi_mode_page_header_sp *sph; 6041 6042 sph = (struct scsi_mode_page_header_sp *)page_header; 6043 if (page_index->subpage == sph->subpage) { 6044 page_len = scsi_2btoul(sph->page_length); 6045 break; 6046 } 6047 } 6048 } 6049 6050 /* 6051 * If we couldn't find the page, or if we don't have a mode select 6052 * handler for it, send back an error to the user. 6053 */ 6054 if ((i >= CTL_NUM_MODE_PAGES) 6055 || (page_index->select_handler == NULL)) { 6056 ctl_set_invalid_field(ctsio, 6057 /*sks_valid*/ 1, 6058 /*command*/ 0, 6059 /*field*/ *len_used, 6060 /*bit_valid*/ 0, 6061 /*bit*/ 0); 6062 free(ctsio->kern_data_ptr, M_CTL); 6063 ctl_done((union ctl_io *)ctsio); 6064 return (CTL_RETVAL_COMPLETE); 6065 } 6066 6067 if (page_index->page_code & SMPH_SPF) { 6068 page_len_offset = 2; 6069 page_len_size = 2; 6070 } else { 6071 page_len_size = 1; 6072 page_len_offset = 1; 6073 } 6074 6075 /* 6076 * If the length the initiator gives us isn't the one we specify in 6077 * the mode page header, or if they didn't specify enough data in 6078 * the CDB to avoid truncating this page, kick out the request. 6079 */ 6080 if (page_len != page_index->page_len - page_len_offset - page_len_size) { 6081 ctl_set_invalid_field(ctsio, 6082 /*sks_valid*/ 1, 6083 /*command*/ 0, 6084 /*field*/ *len_used + page_len_offset, 6085 /*bit_valid*/ 0, 6086 /*bit*/ 0); 6087 free(ctsio->kern_data_ptr, M_CTL); 6088 ctl_done((union ctl_io *)ctsio); 6089 return (CTL_RETVAL_COMPLETE); 6090 } 6091 if (*len_left < page_index->page_len) { 6092 free(ctsio->kern_data_ptr, M_CTL); 6093 ctl_set_param_len_error(ctsio); 6094 ctl_done((union ctl_io *)ctsio); 6095 return (CTL_RETVAL_COMPLETE); 6096 } 6097 6098 /* 6099 * Run through the mode page, checking to make sure that the bits 6100 * the user changed are actually legal for him to change. 6101 */ 6102 for (i = 0; i < page_index->page_len; i++) { 6103 uint8_t *user_byte, *change_mask, *current_byte; 6104 int bad_bit; 6105 int j; 6106 6107 user_byte = (uint8_t *)page_header + i; 6108 change_mask = page_index->page_data + 6109 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6110 current_byte = page_index->page_data + 6111 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6112 6113 /* 6114 * Check to see whether the user set any bits in this byte 6115 * that he is not allowed to set. 6116 */ 6117 if ((*user_byte & ~(*change_mask)) == 6118 (*current_byte & ~(*change_mask))) 6119 continue; 6120 6121 /* 6122 * Go through bit by bit to determine which one is illegal. 6123 */ 6124 bad_bit = 0; 6125 for (j = 7; j >= 0; j--) { 6126 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6127 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6128 bad_bit = i; 6129 break; 6130 } 6131 } 6132 ctl_set_invalid_field(ctsio, 6133 /*sks_valid*/ 1, 6134 /*command*/ 0, 6135 /*field*/ *len_used + i, 6136 /*bit_valid*/ 1, 6137 /*bit*/ bad_bit); 6138 free(ctsio->kern_data_ptr, M_CTL); 6139 ctl_done((union ctl_io *)ctsio); 6140 return (CTL_RETVAL_COMPLETE); 6141 } 6142 6143 /* 6144 * Decrement these before we call the page handler, since we may 6145 * end up getting called back one way or another before the handler 6146 * returns to this context. 6147 */ 6148 *len_left -= page_index->page_len; 6149 *len_used += page_index->page_len; 6150 6151 retval = page_index->select_handler(ctsio, page_index, 6152 (uint8_t *)page_header); 6153 6154 /* 6155 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6156 * wait until this queued command completes to finish processing 6157 * the mode page. If it returns anything other than 6158 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6159 * already set the sense information, freed the data pointer, and 6160 * completed the io for us. 6161 */ 6162 if (retval != CTL_RETVAL_COMPLETE) 6163 goto bailout_no_done; 6164 6165 /* 6166 * If the initiator sent us more than one page, parse the next one. 6167 */ 6168 if (*len_left > 0) 6169 goto do_next_page; 6170 6171 ctl_set_success(ctsio); 6172 free(ctsio->kern_data_ptr, M_CTL); 6173 ctl_done((union ctl_io *)ctsio); 6174 6175bailout_no_done: 6176 6177 return (CTL_RETVAL_COMPLETE); 6178 6179} 6180 6181int 6182ctl_mode_select(struct ctl_scsiio *ctsio) 6183{ 6184 struct ctl_lun *lun = CTL_LUN(ctsio); 6185 union ctl_modepage_info *modepage_info; 6186 int bd_len, i, header_size, param_len, pf, rtd, sp; 6187 uint32_t initidx; 6188 6189 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6190 switch (ctsio->cdb[0]) { 6191 case MODE_SELECT_6: { 6192 struct scsi_mode_select_6 *cdb; 6193 6194 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6195 6196 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6197 rtd = (cdb->byte2 & SMS_RTD) ? 1 : 0; 6198 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6199 param_len = cdb->length; 6200 header_size = sizeof(struct scsi_mode_header_6); 6201 break; 6202 } 6203 case MODE_SELECT_10: { 6204 struct scsi_mode_select_10 *cdb; 6205 6206 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6207 6208 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6209 rtd = (cdb->byte2 & SMS_RTD) ? 1 : 0; 6210 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6211 param_len = scsi_2btoul(cdb->length); 6212 header_size = sizeof(struct scsi_mode_header_10); 6213 break; 6214 } 6215 default: 6216 ctl_set_invalid_opcode(ctsio); 6217 ctl_done((union ctl_io *)ctsio); 6218 return (CTL_RETVAL_COMPLETE); 6219 } 6220 6221 if (rtd) { 6222 if (param_len != 0) { 6223 ctl_set_invalid_field(ctsio, /*sks_valid*/ 0, 6224 /*command*/ 1, /*field*/ 0, 6225 /*bit_valid*/ 0, /*bit*/ 0); 6226 ctl_done((union ctl_io *)ctsio); 6227 return (CTL_RETVAL_COMPLETE); 6228 } 6229 6230 /* Revert to defaults. */ 6231 ctl_init_page_index(lun); 6232 mtx_lock(&lun->lun_lock); 6233 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 6234 mtx_unlock(&lun->lun_lock); 6235 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6236 ctl_isc_announce_mode(lun, -1, 6237 lun->mode_pages.index[i].page_code & SMPH_PC_MASK, 6238 lun->mode_pages.index[i].subpage); 6239 } 6240 ctl_set_success(ctsio); 6241 ctl_done((union ctl_io *)ctsio); 6242 return (CTL_RETVAL_COMPLETE); 6243 } 6244 6245 /* 6246 * From SPC-3: 6247 * "A parameter list length of zero indicates that the Data-Out Buffer 6248 * shall be empty. This condition shall not be considered as an error." 6249 */ 6250 if (param_len == 0) { 6251 ctl_set_success(ctsio); 6252 ctl_done((union ctl_io *)ctsio); 6253 return (CTL_RETVAL_COMPLETE); 6254 } 6255 6256 /* 6257 * Since we'll hit this the first time through, prior to 6258 * allocation, we don't need to free a data buffer here. 6259 */ 6260 if (param_len < header_size) { 6261 ctl_set_param_len_error(ctsio); 6262 ctl_done((union ctl_io *)ctsio); 6263 return (CTL_RETVAL_COMPLETE); 6264 } 6265 6266 /* 6267 * Allocate the data buffer and grab the user's data. In theory, 6268 * we shouldn't have to sanity check the parameter list length here 6269 * because the maximum size is 64K. We should be able to malloc 6270 * that much without too many problems. 6271 */ 6272 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6273 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6274 ctsio->kern_data_len = param_len; 6275 ctsio->kern_total_len = param_len; 6276 ctsio->kern_rel_offset = 0; 6277 ctsio->kern_sg_entries = 0; 6278 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6279 ctsio->be_move_done = ctl_config_move_done; 6280 ctl_datamove((union ctl_io *)ctsio); 6281 6282 return (CTL_RETVAL_COMPLETE); 6283 } 6284 6285 switch (ctsio->cdb[0]) { 6286 case MODE_SELECT_6: { 6287 struct scsi_mode_header_6 *mh6; 6288 6289 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6290 bd_len = mh6->blk_desc_len; 6291 break; 6292 } 6293 case MODE_SELECT_10: { 6294 struct scsi_mode_header_10 *mh10; 6295 6296 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6297 bd_len = scsi_2btoul(mh10->blk_desc_len); 6298 break; 6299 } 6300 default: 6301 panic("%s: Invalid CDB type %#x", __func__, ctsio->cdb[0]); 6302 } 6303 6304 if (param_len < (header_size + bd_len)) { 6305 free(ctsio->kern_data_ptr, M_CTL); 6306 ctl_set_param_len_error(ctsio); 6307 ctl_done((union ctl_io *)ctsio); 6308 return (CTL_RETVAL_COMPLETE); 6309 } 6310 6311 /* 6312 * Set the IO_CONT flag, so that if this I/O gets passed to 6313 * ctl_config_write_done(), it'll get passed back to 6314 * ctl_do_mode_select() for further processing, or completion if 6315 * we're all done. 6316 */ 6317 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6318 ctsio->io_cont = ctl_do_mode_select; 6319 6320 modepage_info = (union ctl_modepage_info *) 6321 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6322 memset(modepage_info, 0, sizeof(*modepage_info)); 6323 modepage_info->header.len_left = param_len - header_size - bd_len; 6324 modepage_info->header.len_used = header_size + bd_len; 6325 6326 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6327} 6328 6329int 6330ctl_mode_sense(struct ctl_scsiio *ctsio) 6331{ 6332 struct ctl_lun *lun = CTL_LUN(ctsio); 6333 int pc, page_code, dbd, llba, subpage; 6334 int alloc_len, page_len, header_len, total_len; 6335 struct scsi_mode_block_descr *block_desc; 6336 struct ctl_page_index *page_index; 6337 6338 dbd = 0; 6339 llba = 0; 6340 block_desc = NULL; 6341 6342 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6343 6344 switch (ctsio->cdb[0]) { 6345 case MODE_SENSE_6: { 6346 struct scsi_mode_sense_6 *cdb; 6347 6348 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6349 6350 header_len = sizeof(struct scsi_mode_hdr_6); 6351 if (cdb->byte2 & SMS_DBD) 6352 dbd = 1; 6353 else 6354 header_len += sizeof(struct scsi_mode_block_descr); 6355 6356 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6357 page_code = cdb->page & SMS_PAGE_CODE; 6358 subpage = cdb->subpage; 6359 alloc_len = cdb->length; 6360 break; 6361 } 6362 case MODE_SENSE_10: { 6363 struct scsi_mode_sense_10 *cdb; 6364 6365 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6366 6367 header_len = sizeof(struct scsi_mode_hdr_10); 6368 6369 if (cdb->byte2 & SMS_DBD) 6370 dbd = 1; 6371 else 6372 header_len += sizeof(struct scsi_mode_block_descr); 6373 if (cdb->byte2 & SMS10_LLBAA) 6374 llba = 1; 6375 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6376 page_code = cdb->page & SMS_PAGE_CODE; 6377 subpage = cdb->subpage; 6378 alloc_len = scsi_2btoul(cdb->length); 6379 break; 6380 } 6381 default: 6382 ctl_set_invalid_opcode(ctsio); 6383 ctl_done((union ctl_io *)ctsio); 6384 return (CTL_RETVAL_COMPLETE); 6385 break; /* NOTREACHED */ 6386 } 6387 6388 /* 6389 * We have to make a first pass through to calculate the size of 6390 * the pages that match the user's query. Then we allocate enough 6391 * memory to hold it, and actually copy the data into the buffer. 6392 */ 6393 switch (page_code) { 6394 case SMS_ALL_PAGES_PAGE: { 6395 u_int i; 6396 6397 page_len = 0; 6398 6399 /* 6400 * At the moment, values other than 0 and 0xff here are 6401 * reserved according to SPC-3. 6402 */ 6403 if ((subpage != SMS_SUBPAGE_PAGE_0) 6404 && (subpage != SMS_SUBPAGE_ALL)) { 6405 ctl_set_invalid_field(ctsio, 6406 /*sks_valid*/ 1, 6407 /*command*/ 1, 6408 /*field*/ 3, 6409 /*bit_valid*/ 0, 6410 /*bit*/ 0); 6411 ctl_done((union ctl_io *)ctsio); 6412 return (CTL_RETVAL_COMPLETE); 6413 } 6414 6415 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6416 page_index = &lun->mode_pages.index[i]; 6417 6418 /* Make sure the page is supported for this dev type */ 6419 if (lun->be_lun->lun_type == T_DIRECT && 6420 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6421 continue; 6422 if (lun->be_lun->lun_type == T_PROCESSOR && 6423 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6424 continue; 6425 if (lun->be_lun->lun_type == T_CDROM && 6426 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6427 continue; 6428 6429 /* 6430 * We don't use this subpage if the user didn't 6431 * request all subpages. 6432 */ 6433 if ((page_index->subpage != 0) 6434 && (subpage == SMS_SUBPAGE_PAGE_0)) 6435 continue; 6436 6437 page_len += page_index->page_len; 6438 } 6439 break; 6440 } 6441 default: { 6442 u_int i; 6443 6444 page_len = 0; 6445 6446 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6447 page_index = &lun->mode_pages.index[i]; 6448 6449 /* Make sure the page is supported for this dev type */ 6450 if (lun->be_lun->lun_type == T_DIRECT && 6451 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6452 continue; 6453 if (lun->be_lun->lun_type == T_PROCESSOR && 6454 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6455 continue; 6456 if (lun->be_lun->lun_type == T_CDROM && 6457 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6458 continue; 6459 6460 /* Look for the right page code */ 6461 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6462 continue; 6463 6464 /* Look for the right subpage or the subpage wildcard*/ 6465 if ((page_index->subpage != subpage) 6466 && (subpage != SMS_SUBPAGE_ALL)) 6467 continue; 6468 6469 page_len += page_index->page_len; 6470 } 6471 6472 if (page_len == 0) { 6473 ctl_set_invalid_field(ctsio, 6474 /*sks_valid*/ 1, 6475 /*command*/ 1, 6476 /*field*/ 2, 6477 /*bit_valid*/ 1, 6478 /*bit*/ 5); 6479 ctl_done((union ctl_io *)ctsio); 6480 return (CTL_RETVAL_COMPLETE); 6481 } 6482 break; 6483 } 6484 } 6485 6486 total_len = header_len + page_len; 6487 6488 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6489 ctsio->kern_sg_entries = 0; 6490 ctsio->kern_rel_offset = 0; 6491 ctsio->kern_data_len = min(total_len, alloc_len); 6492 ctsio->kern_total_len = ctsio->kern_data_len; 6493 6494 switch (ctsio->cdb[0]) { 6495 case MODE_SENSE_6: { 6496 struct scsi_mode_hdr_6 *header; 6497 6498 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6499 6500 header->datalen = MIN(total_len - 1, 254); 6501 if (lun->be_lun->lun_type == T_DIRECT) { 6502 header->dev_specific = 0x10; /* DPOFUA */ 6503 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6504 (lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) 6505 header->dev_specific |= 0x80; /* WP */ 6506 } 6507 if (dbd) 6508 header->block_descr_len = 0; 6509 else 6510 header->block_descr_len = 6511 sizeof(struct scsi_mode_block_descr); 6512 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6513 break; 6514 } 6515 case MODE_SENSE_10: { 6516 struct scsi_mode_hdr_10 *header; 6517 int datalen; 6518 6519 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6520 6521 datalen = MIN(total_len - 2, 65533); 6522 scsi_ulto2b(datalen, header->datalen); 6523 if (lun->be_lun->lun_type == T_DIRECT) { 6524 header->dev_specific = 0x10; /* DPOFUA */ 6525 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6526 (lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) 6527 header->dev_specific |= 0x80; /* WP */ 6528 } 6529 if (dbd) 6530 scsi_ulto2b(0, header->block_descr_len); 6531 else 6532 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6533 header->block_descr_len); 6534 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6535 break; 6536 } 6537 default: 6538 panic("%s: Invalid CDB type %#x", __func__, ctsio->cdb[0]); 6539 } 6540 6541 /* 6542 * If we've got a disk, use its blocksize in the block 6543 * descriptor. Otherwise, just set it to 0. 6544 */ 6545 if (dbd == 0) { 6546 if (lun->be_lun->lun_type == T_DIRECT) 6547 scsi_ulto3b(lun->be_lun->blocksize, 6548 block_desc->block_len); 6549 else 6550 scsi_ulto3b(0, block_desc->block_len); 6551 } 6552 6553 switch (page_code) { 6554 case SMS_ALL_PAGES_PAGE: { 6555 int i, data_used; 6556 6557 data_used = header_len; 6558 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6559 struct ctl_page_index *page_index; 6560 6561 page_index = &lun->mode_pages.index[i]; 6562 if (lun->be_lun->lun_type == T_DIRECT && 6563 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6564 continue; 6565 if (lun->be_lun->lun_type == T_PROCESSOR && 6566 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6567 continue; 6568 if (lun->be_lun->lun_type == T_CDROM && 6569 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6570 continue; 6571 6572 /* 6573 * We don't use this subpage if the user didn't 6574 * request all subpages. We already checked (above) 6575 * to make sure the user only specified a subpage 6576 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6577 */ 6578 if ((page_index->subpage != 0) 6579 && (subpage == SMS_SUBPAGE_PAGE_0)) 6580 continue; 6581 6582 /* 6583 * Call the handler, if it exists, to update the 6584 * page to the latest values. 6585 */ 6586 if (page_index->sense_handler != NULL) 6587 page_index->sense_handler(ctsio, page_index,pc); 6588 6589 memcpy(ctsio->kern_data_ptr + data_used, 6590 page_index->page_data + 6591 (page_index->page_len * pc), 6592 page_index->page_len); 6593 data_used += page_index->page_len; 6594 } 6595 break; 6596 } 6597 default: { 6598 int i, data_used; 6599 6600 data_used = header_len; 6601 6602 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6603 struct ctl_page_index *page_index; 6604 6605 page_index = &lun->mode_pages.index[i]; 6606 6607 /* Look for the right page code */ 6608 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6609 continue; 6610 6611 /* Look for the right subpage or the subpage wildcard*/ 6612 if ((page_index->subpage != subpage) 6613 && (subpage != SMS_SUBPAGE_ALL)) 6614 continue; 6615 6616 /* Make sure the page is supported for this dev type */ 6617 if (lun->be_lun->lun_type == T_DIRECT && 6618 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6619 continue; 6620 if (lun->be_lun->lun_type == T_PROCESSOR && 6621 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6622 continue; 6623 if (lun->be_lun->lun_type == T_CDROM && 6624 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6625 continue; 6626 6627 /* 6628 * Call the handler, if it exists, to update the 6629 * page to the latest values. 6630 */ 6631 if (page_index->sense_handler != NULL) 6632 page_index->sense_handler(ctsio, page_index,pc); 6633 6634 memcpy(ctsio->kern_data_ptr + data_used, 6635 page_index->page_data + 6636 (page_index->page_len * pc), 6637 page_index->page_len); 6638 data_used += page_index->page_len; 6639 } 6640 break; 6641 } 6642 } 6643 6644 ctl_set_success(ctsio); 6645 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6646 ctsio->be_move_done = ctl_config_move_done; 6647 ctl_datamove((union ctl_io *)ctsio); 6648 return (CTL_RETVAL_COMPLETE); 6649} 6650 6651int 6652ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6653 struct ctl_page_index *page_index, 6654 int pc) 6655{ 6656 struct ctl_lun *lun = CTL_LUN(ctsio); 6657 struct scsi_log_param_header *phdr; 6658 uint8_t *data; 6659 uint64_t val; 6660 6661 data = page_index->page_data; 6662 6663 if (lun->backend->lun_attr != NULL && 6664 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6665 != UINT64_MAX) { 6666 phdr = (struct scsi_log_param_header *)data; 6667 scsi_ulto2b(0x0001, phdr->param_code); 6668 phdr->param_control = SLP_LBIN | SLP_LP; 6669 phdr->param_len = 8; 6670 data = (uint8_t *)(phdr + 1); 6671 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6672 data[4] = 0x02; /* per-pool */ 6673 data += phdr->param_len; 6674 } 6675 6676 if (lun->backend->lun_attr != NULL && 6677 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6678 != UINT64_MAX) { 6679 phdr = (struct scsi_log_param_header *)data; 6680 scsi_ulto2b(0x0002, phdr->param_code); 6681 phdr->param_control = SLP_LBIN | SLP_LP; 6682 phdr->param_len = 8; 6683 data = (uint8_t *)(phdr + 1); 6684 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6685 data[4] = 0x01; /* per-LUN */ 6686 data += phdr->param_len; 6687 } 6688 6689 if (lun->backend->lun_attr != NULL && 6690 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6691 != UINT64_MAX) { 6692 phdr = (struct scsi_log_param_header *)data; 6693 scsi_ulto2b(0x00f1, phdr->param_code); 6694 phdr->param_control = SLP_LBIN | SLP_LP; 6695 phdr->param_len = 8; 6696 data = (uint8_t *)(phdr + 1); 6697 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6698 data[4] = 0x02; /* per-pool */ 6699 data += phdr->param_len; 6700 } 6701 6702 if (lun->backend->lun_attr != NULL && 6703 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 6704 != UINT64_MAX) { 6705 phdr = (struct scsi_log_param_header *)data; 6706 scsi_ulto2b(0x00f2, phdr->param_code); 6707 phdr->param_control = SLP_LBIN | SLP_LP; 6708 phdr->param_len = 8; 6709 data = (uint8_t *)(phdr + 1); 6710 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6711 data[4] = 0x02; /* per-pool */ 6712 data += phdr->param_len; 6713 } 6714 6715 page_index->page_len = data - page_index->page_data; 6716 return (0); 6717} 6718 6719int 6720ctl_sap_log_sense_handler(struct ctl_scsiio *ctsio, 6721 struct ctl_page_index *page_index, 6722 int pc) 6723{ 6724 struct ctl_lun *lun = CTL_LUN(ctsio); 6725 struct stat_page *data; 6726 struct bintime *t; 6727 6728 data = (struct stat_page *)page_index->page_data; 6729 6730 scsi_ulto2b(SLP_SAP, data->sap.hdr.param_code); 6731 data->sap.hdr.param_control = SLP_LBIN; 6732 data->sap.hdr.param_len = sizeof(struct scsi_log_stat_and_perf) - 6733 sizeof(struct scsi_log_param_header); 6734 scsi_u64to8b(lun->stats.operations[CTL_STATS_READ], 6735 data->sap.read_num); 6736 scsi_u64to8b(lun->stats.operations[CTL_STATS_WRITE], 6737 data->sap.write_num); 6738 if (lun->be_lun->blocksize > 0) { 6739 scsi_u64to8b(lun->stats.bytes[CTL_STATS_WRITE] / 6740 lun->be_lun->blocksize, data->sap.recvieved_lba); 6741 scsi_u64to8b(lun->stats.bytes[CTL_STATS_READ] / 6742 lun->be_lun->blocksize, data->sap.transmitted_lba); 6743 } 6744 t = &lun->stats.time[CTL_STATS_READ]; 6745 scsi_u64to8b((uint64_t)t->sec * 1000 + t->frac / (UINT64_MAX / 1000), 6746 data->sap.read_int); 6747 t = &lun->stats.time[CTL_STATS_WRITE]; 6748 scsi_u64to8b((uint64_t)t->sec * 1000 + t->frac / (UINT64_MAX / 1000), 6749 data->sap.write_int); 6750 scsi_u64to8b(0, data->sap.weighted_num); 6751 scsi_u64to8b(0, data->sap.weighted_int); 6752 scsi_ulto2b(SLP_IT, data->it.hdr.param_code); 6753 data->it.hdr.param_control = SLP_LBIN; 6754 data->it.hdr.param_len = sizeof(struct scsi_log_idle_time) - 6755 sizeof(struct scsi_log_param_header); 6756#ifdef CTL_TIME_IO 6757 scsi_u64to8b(lun->idle_time / SBT_1MS, data->it.idle_int); 6758#endif 6759 scsi_ulto2b(SLP_TI, data->ti.hdr.param_code); 6760 data->it.hdr.param_control = SLP_LBIN; 6761 data->ti.hdr.param_len = sizeof(struct scsi_log_time_interval) - 6762 sizeof(struct scsi_log_param_header); 6763 scsi_ulto4b(3, data->ti.exponent); 6764 scsi_ulto4b(1, data->ti.integer); 6765 return (0); 6766} 6767 6768int 6769ctl_ie_log_sense_handler(struct ctl_scsiio *ctsio, 6770 struct ctl_page_index *page_index, 6771 int pc) 6772{ 6773 struct ctl_lun *lun = CTL_LUN(ctsio); 6774 struct scsi_log_informational_exceptions *data; 6775 6776 data = (struct scsi_log_informational_exceptions *)page_index->page_data; 6777 6778 scsi_ulto2b(SLP_IE_GEN, data->hdr.param_code); 6779 data->hdr.param_control = SLP_LBIN; 6780 data->hdr.param_len = sizeof(struct scsi_log_informational_exceptions) - 6781 sizeof(struct scsi_log_param_header); 6782 data->ie_asc = lun->ie_asc; 6783 data->ie_ascq = lun->ie_ascq; 6784 data->temperature = 0xff; 6785 return (0); 6786} 6787 6788int 6789ctl_log_sense(struct ctl_scsiio *ctsio) 6790{ 6791 struct ctl_lun *lun = CTL_LUN(ctsio); 6792 int i, pc, page_code, subpage; 6793 int alloc_len, total_len; 6794 struct ctl_page_index *page_index; 6795 struct scsi_log_sense *cdb; 6796 struct scsi_log_header *header; 6797 6798 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 6799 6800 cdb = (struct scsi_log_sense *)ctsio->cdb; 6801 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 6802 page_code = cdb->page & SLS_PAGE_CODE; 6803 subpage = cdb->subpage; 6804 alloc_len = scsi_2btoul(cdb->length); 6805 6806 page_index = NULL; 6807 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 6808 page_index = &lun->log_pages.index[i]; 6809 6810 /* Look for the right page code */ 6811 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 6812 continue; 6813 6814 /* Look for the right subpage or the subpage wildcard*/ 6815 if (page_index->subpage != subpage) 6816 continue; 6817 6818 break; 6819 } 6820 if (i >= CTL_NUM_LOG_PAGES) { 6821 ctl_set_invalid_field(ctsio, 6822 /*sks_valid*/ 1, 6823 /*command*/ 1, 6824 /*field*/ 2, 6825 /*bit_valid*/ 0, 6826 /*bit*/ 0); 6827 ctl_done((union ctl_io *)ctsio); 6828 return (CTL_RETVAL_COMPLETE); 6829 } 6830 6831 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 6832 6833 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6834 ctsio->kern_sg_entries = 0; 6835 ctsio->kern_rel_offset = 0; 6836 ctsio->kern_data_len = min(total_len, alloc_len); 6837 ctsio->kern_total_len = ctsio->kern_data_len; 6838 6839 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 6840 header->page = page_index->page_code; 6841 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING) 6842 header->page |= SL_DS; 6843 if (page_index->subpage) { 6844 header->page |= SL_SPF; 6845 header->subpage = page_index->subpage; 6846 } 6847 scsi_ulto2b(page_index->page_len, header->datalen); 6848 6849 /* 6850 * Call the handler, if it exists, to update the 6851 * page to the latest values. 6852 */ 6853 if (page_index->sense_handler != NULL) 6854 page_index->sense_handler(ctsio, page_index, pc); 6855 6856 memcpy(header + 1, page_index->page_data, page_index->page_len); 6857 6858 ctl_set_success(ctsio); 6859 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6860 ctsio->be_move_done = ctl_config_move_done; 6861 ctl_datamove((union ctl_io *)ctsio); 6862 return (CTL_RETVAL_COMPLETE); 6863} 6864 6865int 6866ctl_read_capacity(struct ctl_scsiio *ctsio) 6867{ 6868 struct ctl_lun *lun = CTL_LUN(ctsio); 6869 struct scsi_read_capacity *cdb; 6870 struct scsi_read_capacity_data *data; 6871 uint32_t lba; 6872 6873 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 6874 6875 cdb = (struct scsi_read_capacity *)ctsio->cdb; 6876 6877 lba = scsi_4btoul(cdb->addr); 6878 if (((cdb->pmi & SRC_PMI) == 0) 6879 && (lba != 0)) { 6880 ctl_set_invalid_field(/*ctsio*/ ctsio, 6881 /*sks_valid*/ 1, 6882 /*command*/ 1, 6883 /*field*/ 2, 6884 /*bit_valid*/ 0, 6885 /*bit*/ 0); 6886 ctl_done((union ctl_io *)ctsio); 6887 return (CTL_RETVAL_COMPLETE); 6888 } 6889 6890 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6891 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 6892 ctsio->kern_data_len = sizeof(*data); 6893 ctsio->kern_total_len = sizeof(*data); 6894 ctsio->kern_rel_offset = 0; 6895 ctsio->kern_sg_entries = 0; 6896 6897 /* 6898 * If the maximum LBA is greater than 0xfffffffe, the user must 6899 * issue a SERVICE ACTION IN (16) command, with the read capacity 6900 * serivce action set. 6901 */ 6902 if (lun->be_lun->maxlba > 0xfffffffe) 6903 scsi_ulto4b(0xffffffff, data->addr); 6904 else 6905 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 6906 6907 /* 6908 * XXX KDM this may not be 512 bytes... 6909 */ 6910 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6911 6912 ctl_set_success(ctsio); 6913 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6914 ctsio->be_move_done = ctl_config_move_done; 6915 ctl_datamove((union ctl_io *)ctsio); 6916 return (CTL_RETVAL_COMPLETE); 6917} 6918 6919int 6920ctl_read_capacity_16(struct ctl_scsiio *ctsio) 6921{ 6922 struct ctl_lun *lun = CTL_LUN(ctsio); 6923 struct scsi_read_capacity_16 *cdb; 6924 struct scsi_read_capacity_data_long *data; 6925 uint64_t lba; 6926 uint32_t alloc_len; 6927 6928 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 6929 6930 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 6931 6932 alloc_len = scsi_4btoul(cdb->alloc_len); 6933 lba = scsi_8btou64(cdb->addr); 6934 6935 if ((cdb->reladr & SRC16_PMI) 6936 && (lba != 0)) { 6937 ctl_set_invalid_field(/*ctsio*/ ctsio, 6938 /*sks_valid*/ 1, 6939 /*command*/ 1, 6940 /*field*/ 2, 6941 /*bit_valid*/ 0, 6942 /*bit*/ 0); 6943 ctl_done((union ctl_io *)ctsio); 6944 return (CTL_RETVAL_COMPLETE); 6945 } 6946 6947 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6948 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 6949 ctsio->kern_rel_offset = 0; 6950 ctsio->kern_sg_entries = 0; 6951 ctsio->kern_data_len = min(sizeof(*data), alloc_len); 6952 ctsio->kern_total_len = ctsio->kern_data_len; 6953 6954 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 6955 /* XXX KDM this may not be 512 bytes... */ 6956 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6957 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 6958 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 6959 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 6960 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 6961 6962 ctl_set_success(ctsio); 6963 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6964 ctsio->be_move_done = ctl_config_move_done; 6965 ctl_datamove((union ctl_io *)ctsio); 6966 return (CTL_RETVAL_COMPLETE); 6967} 6968 6969int 6970ctl_get_lba_status(struct ctl_scsiio *ctsio) 6971{ 6972 struct ctl_lun *lun = CTL_LUN(ctsio); 6973 struct scsi_get_lba_status *cdb; 6974 struct scsi_get_lba_status_data *data; 6975 struct ctl_lba_len_flags *lbalen; 6976 uint64_t lba; 6977 uint32_t alloc_len, total_len; 6978 int retval; 6979 6980 CTL_DEBUG_PRINT(("ctl_get_lba_status\n")); 6981 6982 cdb = (struct scsi_get_lba_status *)ctsio->cdb; 6983 lba = scsi_8btou64(cdb->addr); 6984 alloc_len = scsi_4btoul(cdb->alloc_len); 6985 6986 if (lba > lun->be_lun->maxlba) { 6987 ctl_set_lba_out_of_range(ctsio, lba); 6988 ctl_done((union ctl_io *)ctsio); 6989 return (CTL_RETVAL_COMPLETE); 6990 } 6991 6992 total_len = sizeof(*data) + sizeof(data->descr[0]); 6993 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6994 data = (struct scsi_get_lba_status_data *)ctsio->kern_data_ptr; 6995 ctsio->kern_rel_offset = 0; 6996 ctsio->kern_sg_entries = 0; 6997 ctsio->kern_data_len = min(total_len, alloc_len); 6998 ctsio->kern_total_len = ctsio->kern_data_len; 6999 7000 /* Fill dummy data in case backend can't tell anything. */ 7001 scsi_ulto4b(4 + sizeof(data->descr[0]), data->length); 7002 scsi_u64to8b(lba, data->descr[0].addr); 7003 scsi_ulto4b(MIN(UINT32_MAX, lun->be_lun->maxlba + 1 - lba), 7004 data->descr[0].length); 7005 data->descr[0].status = 0; /* Mapped or unknown. */ 7006 7007 ctl_set_success(ctsio); 7008 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7009 ctsio->be_move_done = ctl_config_move_done; 7010 7011 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 7012 lbalen->lba = lba; 7013 lbalen->len = total_len; 7014 lbalen->flags = 0; 7015 retval = lun->backend->config_read((union ctl_io *)ctsio); 7016 return (retval); 7017} 7018 7019int 7020ctl_read_defect(struct ctl_scsiio *ctsio) 7021{ 7022 struct scsi_read_defect_data_10 *ccb10; 7023 struct scsi_read_defect_data_12 *ccb12; 7024 struct scsi_read_defect_data_hdr_10 *data10; 7025 struct scsi_read_defect_data_hdr_12 *data12; 7026 uint32_t alloc_len, data_len; 7027 uint8_t format; 7028 7029 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7030 7031 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7032 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7033 format = ccb10->format; 7034 alloc_len = scsi_2btoul(ccb10->alloc_length); 7035 data_len = sizeof(*data10); 7036 } else { 7037 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7038 format = ccb12->format; 7039 alloc_len = scsi_4btoul(ccb12->alloc_length); 7040 data_len = sizeof(*data12); 7041 } 7042 if (alloc_len == 0) { 7043 ctl_set_success(ctsio); 7044 ctl_done((union ctl_io *)ctsio); 7045 return (CTL_RETVAL_COMPLETE); 7046 } 7047 7048 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7049 ctsio->kern_rel_offset = 0; 7050 ctsio->kern_sg_entries = 0; 7051 ctsio->kern_data_len = min(data_len, alloc_len); 7052 ctsio->kern_total_len = ctsio->kern_data_len; 7053 7054 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7055 data10 = (struct scsi_read_defect_data_hdr_10 *) 7056 ctsio->kern_data_ptr; 7057 data10->format = format; 7058 scsi_ulto2b(0, data10->length); 7059 } else { 7060 data12 = (struct scsi_read_defect_data_hdr_12 *) 7061 ctsio->kern_data_ptr; 7062 data12->format = format; 7063 scsi_ulto2b(0, data12->generation); 7064 scsi_ulto4b(0, data12->length); 7065 } 7066 7067 ctl_set_success(ctsio); 7068 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7069 ctsio->be_move_done = ctl_config_move_done; 7070 ctl_datamove((union ctl_io *)ctsio); 7071 return (CTL_RETVAL_COMPLETE); 7072} 7073 7074int 7075ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7076{ 7077 struct ctl_softc *softc = CTL_SOFTC(ctsio); 7078 struct ctl_lun *lun = CTL_LUN(ctsio); 7079 struct scsi_maintenance_in *cdb; 7080 int retval; 7081 int alloc_len, ext, total_len = 0, g, pc, pg, ts, os; 7082 int num_ha_groups, num_target_ports, shared_group; 7083 struct ctl_port *port; 7084 struct scsi_target_group_data *rtg_ptr; 7085 struct scsi_target_group_data_extended *rtg_ext_ptr; 7086 struct scsi_target_port_group_descriptor *tpg_desc; 7087 7088 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7089 7090 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7091 retval = CTL_RETVAL_COMPLETE; 7092 7093 switch (cdb->byte2 & STG_PDF_MASK) { 7094 case STG_PDF_LENGTH: 7095 ext = 0; 7096 break; 7097 case STG_PDF_EXTENDED: 7098 ext = 1; 7099 break; 7100 default: 7101 ctl_set_invalid_field(/*ctsio*/ ctsio, 7102 /*sks_valid*/ 1, 7103 /*command*/ 1, 7104 /*field*/ 2, 7105 /*bit_valid*/ 1, 7106 /*bit*/ 5); 7107 ctl_done((union ctl_io *)ctsio); 7108 return(retval); 7109 } 7110 7111 num_target_ports = 0; 7112 shared_group = (softc->is_single != 0); 7113 mtx_lock(&softc->ctl_lock); 7114 STAILQ_FOREACH(port, &softc->port_list, links) { 7115 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7116 continue; 7117 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 7118 continue; 7119 num_target_ports++; 7120 if (port->status & CTL_PORT_STATUS_HA_SHARED) 7121 shared_group = 1; 7122 } 7123 mtx_unlock(&softc->ctl_lock); 7124 num_ha_groups = (softc->is_single) ? 0 : NUM_HA_SHELVES; 7125 7126 if (ext) 7127 total_len = sizeof(struct scsi_target_group_data_extended); 7128 else 7129 total_len = sizeof(struct scsi_target_group_data); 7130 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7131 (shared_group + num_ha_groups) + 7132 sizeof(struct scsi_target_port_descriptor) * num_target_ports; 7133 7134 alloc_len = scsi_4btoul(cdb->length); 7135 7136 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7137 ctsio->kern_sg_entries = 0; 7138 ctsio->kern_rel_offset = 0; 7139 ctsio->kern_data_len = min(total_len, alloc_len); 7140 ctsio->kern_total_len = ctsio->kern_data_len; 7141 7142 if (ext) { 7143 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7144 ctsio->kern_data_ptr; 7145 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7146 rtg_ext_ptr->format_type = 0x10; 7147 rtg_ext_ptr->implicit_transition_time = 0; 7148 tpg_desc = &rtg_ext_ptr->groups[0]; 7149 } else { 7150 rtg_ptr = (struct scsi_target_group_data *) 7151 ctsio->kern_data_ptr; 7152 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7153 tpg_desc = &rtg_ptr->groups[0]; 7154 } 7155 7156 mtx_lock(&softc->ctl_lock); 7157 pg = softc->port_min / softc->port_cnt; 7158 if (lun->flags & (CTL_LUN_PRIMARY_SC | CTL_LUN_PEER_SC_PRIMARY)) { 7159 /* Some shelf is known to be primary. */ 7160 if (softc->ha_link == CTL_HA_LINK_OFFLINE) 7161 os = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7162 else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) 7163 os = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7164 else if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) 7165 os = TPG_ASYMMETRIC_ACCESS_STANDBY; 7166 else 7167 os = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7168 if (lun->flags & CTL_LUN_PRIMARY_SC) { 7169 ts = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7170 } else { 7171 ts = os; 7172 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7173 } 7174 } else { 7175 /* No known primary shelf. */ 7176 if (softc->ha_link == CTL_HA_LINK_OFFLINE) { 7177 ts = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7178 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7179 } else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) { 7180 ts = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7181 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7182 } else { 7183 ts = os = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7184 } 7185 } 7186 if (shared_group) { 7187 tpg_desc->pref_state = ts; 7188 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7189 TPG_U_SUP | TPG_T_SUP; 7190 scsi_ulto2b(1, tpg_desc->target_port_group); 7191 tpg_desc->status = TPG_IMPLICIT; 7192 pc = 0; 7193 STAILQ_FOREACH(port, &softc->port_list, links) { 7194 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7195 continue; 7196 if (!softc->is_single && 7197 (port->status & CTL_PORT_STATUS_HA_SHARED) == 0) 7198 continue; 7199 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 7200 continue; 7201 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7202 relative_target_port_identifier); 7203 pc++; 7204 } 7205 tpg_desc->target_port_count = pc; 7206 tpg_desc = (struct scsi_target_port_group_descriptor *) 7207 &tpg_desc->descriptors[pc]; 7208 } 7209 for (g = 0; g < num_ha_groups; g++) { 7210 tpg_desc->pref_state = (g == pg) ? ts : os; 7211 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7212 TPG_U_SUP | TPG_T_SUP; 7213 scsi_ulto2b(2 + g, tpg_desc->target_port_group); 7214 tpg_desc->status = TPG_IMPLICIT; 7215 pc = 0; 7216 STAILQ_FOREACH(port, &softc->port_list, links) { 7217 if (port->targ_port < g * softc->port_cnt || 7218 port->targ_port >= (g + 1) * softc->port_cnt) 7219 continue; 7220 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7221 continue; 7222 if (port->status & CTL_PORT_STATUS_HA_SHARED) 7223 continue; 7224 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 7225 continue; 7226 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7227 relative_target_port_identifier); 7228 pc++; 7229 } 7230 tpg_desc->target_port_count = pc; 7231 tpg_desc = (struct scsi_target_port_group_descriptor *) 7232 &tpg_desc->descriptors[pc]; 7233 } 7234 mtx_unlock(&softc->ctl_lock); 7235 7236 ctl_set_success(ctsio); 7237 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7238 ctsio->be_move_done = ctl_config_move_done; 7239 ctl_datamove((union ctl_io *)ctsio); 7240 return(retval); 7241} 7242 7243int 7244ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7245{ 7246 struct ctl_lun *lun = CTL_LUN(ctsio); 7247 struct scsi_report_supported_opcodes *cdb; 7248 const struct ctl_cmd_entry *entry, *sentry; 7249 struct scsi_report_supported_opcodes_all *all; 7250 struct scsi_report_supported_opcodes_descr *descr; 7251 struct scsi_report_supported_opcodes_one *one; 7252 int retval; 7253 int alloc_len, total_len; 7254 int opcode, service_action, i, j, num; 7255 7256 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7257 7258 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7259 retval = CTL_RETVAL_COMPLETE; 7260 7261 opcode = cdb->requested_opcode; 7262 service_action = scsi_2btoul(cdb->requested_service_action); 7263 switch (cdb->options & RSO_OPTIONS_MASK) { 7264 case RSO_OPTIONS_ALL: 7265 num = 0; 7266 for (i = 0; i < 256; i++) { 7267 entry = &ctl_cmd_table[i]; 7268 if (entry->flags & CTL_CMD_FLAG_SA5) { 7269 for (j = 0; j < 32; j++) { 7270 sentry = &((const struct ctl_cmd_entry *) 7271 entry->execute)[j]; 7272 if (ctl_cmd_applicable( 7273 lun->be_lun->lun_type, sentry)) 7274 num++; 7275 } 7276 } else { 7277 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7278 entry)) 7279 num++; 7280 } 7281 } 7282 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7283 num * sizeof(struct scsi_report_supported_opcodes_descr); 7284 break; 7285 case RSO_OPTIONS_OC: 7286 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7287 ctl_set_invalid_field(/*ctsio*/ ctsio, 7288 /*sks_valid*/ 1, 7289 /*command*/ 1, 7290 /*field*/ 2, 7291 /*bit_valid*/ 1, 7292 /*bit*/ 2); 7293 ctl_done((union ctl_io *)ctsio); 7294 return (CTL_RETVAL_COMPLETE); 7295 } 7296 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7297 break; 7298 case RSO_OPTIONS_OC_SA: 7299 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7300 service_action >= 32) { 7301 ctl_set_invalid_field(/*ctsio*/ ctsio, 7302 /*sks_valid*/ 1, 7303 /*command*/ 1, 7304 /*field*/ 2, 7305 /*bit_valid*/ 1, 7306 /*bit*/ 2); 7307 ctl_done((union ctl_io *)ctsio); 7308 return (CTL_RETVAL_COMPLETE); 7309 } 7310 /* FALLTHROUGH */ 7311 case RSO_OPTIONS_OC_ASA: 7312 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 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*/ 2); 7321 ctl_done((union ctl_io *)ctsio); 7322 return (CTL_RETVAL_COMPLETE); 7323 } 7324 7325 alloc_len = scsi_4btoul(cdb->length); 7326 7327 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7328 ctsio->kern_sg_entries = 0; 7329 ctsio->kern_rel_offset = 0; 7330 ctsio->kern_data_len = min(total_len, alloc_len); 7331 ctsio->kern_total_len = ctsio->kern_data_len; 7332 7333 switch (cdb->options & RSO_OPTIONS_MASK) { 7334 case RSO_OPTIONS_ALL: 7335 all = (struct scsi_report_supported_opcodes_all *) 7336 ctsio->kern_data_ptr; 7337 num = 0; 7338 for (i = 0; i < 256; i++) { 7339 entry = &ctl_cmd_table[i]; 7340 if (entry->flags & CTL_CMD_FLAG_SA5) { 7341 for (j = 0; j < 32; j++) { 7342 sentry = &((const struct ctl_cmd_entry *) 7343 entry->execute)[j]; 7344 if (!ctl_cmd_applicable( 7345 lun->be_lun->lun_type, sentry)) 7346 continue; 7347 descr = &all->descr[num++]; 7348 descr->opcode = i; 7349 scsi_ulto2b(j, descr->service_action); 7350 descr->flags = RSO_SERVACTV; 7351 scsi_ulto2b(sentry->length, 7352 descr->cdb_length); 7353 } 7354 } else { 7355 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7356 entry)) 7357 continue; 7358 descr = &all->descr[num++]; 7359 descr->opcode = i; 7360 scsi_ulto2b(0, descr->service_action); 7361 descr->flags = 0; 7362 scsi_ulto2b(entry->length, descr->cdb_length); 7363 } 7364 } 7365 scsi_ulto4b( 7366 num * sizeof(struct scsi_report_supported_opcodes_descr), 7367 all->length); 7368 break; 7369 case RSO_OPTIONS_OC: 7370 one = (struct scsi_report_supported_opcodes_one *) 7371 ctsio->kern_data_ptr; 7372 entry = &ctl_cmd_table[opcode]; 7373 goto fill_one; 7374 case RSO_OPTIONS_OC_SA: 7375 one = (struct scsi_report_supported_opcodes_one *) 7376 ctsio->kern_data_ptr; 7377 entry = &ctl_cmd_table[opcode]; 7378 entry = &((const struct ctl_cmd_entry *) 7379 entry->execute)[service_action]; 7380fill_one: 7381 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7382 one->support = 3; 7383 scsi_ulto2b(entry->length, one->cdb_length); 7384 one->cdb_usage[0] = opcode; 7385 memcpy(&one->cdb_usage[1], entry->usage, 7386 entry->length - 1); 7387 } else 7388 one->support = 1; 7389 break; 7390 case RSO_OPTIONS_OC_ASA: 7391 one = (struct scsi_report_supported_opcodes_one *) 7392 ctsio->kern_data_ptr; 7393 entry = &ctl_cmd_table[opcode]; 7394 if (entry->flags & CTL_CMD_FLAG_SA5) { 7395 entry = &((const struct ctl_cmd_entry *) 7396 entry->execute)[service_action]; 7397 } else if (service_action != 0) { 7398 one->support = 1; 7399 break; 7400 } 7401 goto fill_one; 7402 } 7403 7404 ctl_set_success(ctsio); 7405 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7406 ctsio->be_move_done = ctl_config_move_done; 7407 ctl_datamove((union ctl_io *)ctsio); 7408 return(retval); 7409} 7410 7411int 7412ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7413{ 7414 struct scsi_report_supported_tmf *cdb; 7415 struct scsi_report_supported_tmf_ext_data *data; 7416 int retval; 7417 int alloc_len, total_len; 7418 7419 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7420 7421 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7422 7423 retval = CTL_RETVAL_COMPLETE; 7424 7425 if (cdb->options & RST_REPD) 7426 total_len = sizeof(struct scsi_report_supported_tmf_ext_data); 7427 else 7428 total_len = sizeof(struct scsi_report_supported_tmf_data); 7429 alloc_len = scsi_4btoul(cdb->length); 7430 7431 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7432 ctsio->kern_sg_entries = 0; 7433 ctsio->kern_rel_offset = 0; 7434 ctsio->kern_data_len = min(total_len, alloc_len); 7435 ctsio->kern_total_len = ctsio->kern_data_len; 7436 7437 data = (struct scsi_report_supported_tmf_ext_data *)ctsio->kern_data_ptr; 7438 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_QTS | 7439 RST_TRS; 7440 data->byte2 |= RST_QAES | RST_QTSS | RST_ITNRS; 7441 data->length = total_len - 4; 7442 7443 ctl_set_success(ctsio); 7444 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7445 ctsio->be_move_done = ctl_config_move_done; 7446 ctl_datamove((union ctl_io *)ctsio); 7447 return (retval); 7448} 7449 7450int 7451ctl_report_timestamp(struct ctl_scsiio *ctsio) 7452{ 7453 struct scsi_report_timestamp *cdb; 7454 struct scsi_report_timestamp_data *data; 7455 struct timeval tv; 7456 int64_t timestamp; 7457 int retval; 7458 int alloc_len, total_len; 7459 7460 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7461 7462 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7463 7464 retval = CTL_RETVAL_COMPLETE; 7465 7466 total_len = sizeof(struct scsi_report_timestamp_data); 7467 alloc_len = scsi_4btoul(cdb->length); 7468 7469 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7470 ctsio->kern_sg_entries = 0; 7471 ctsio->kern_rel_offset = 0; 7472 ctsio->kern_data_len = min(total_len, alloc_len); 7473 ctsio->kern_total_len = ctsio->kern_data_len; 7474 7475 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7476 scsi_ulto2b(sizeof(*data) - 2, data->length); 7477 data->origin = RTS_ORIG_OUTSIDE; 7478 getmicrotime(&tv); 7479 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7480 scsi_ulto4b(timestamp >> 16, data->timestamp); 7481 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7482 7483 ctl_set_success(ctsio); 7484 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7485 ctsio->be_move_done = ctl_config_move_done; 7486 ctl_datamove((union ctl_io *)ctsio); 7487 return (retval); 7488} 7489 7490int 7491ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7492{ 7493 struct ctl_softc *softc = CTL_SOFTC(ctsio); 7494 struct ctl_lun *lun = CTL_LUN(ctsio); 7495 struct scsi_per_res_in *cdb; 7496 int alloc_len, total_len = 0; 7497 /* struct scsi_per_res_in_rsrv in_data; */ 7498 uint64_t key; 7499 7500 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7501 7502 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7503 7504 alloc_len = scsi_2btoul(cdb->length); 7505 7506retry: 7507 mtx_lock(&lun->lun_lock); 7508 switch (cdb->action) { 7509 case SPRI_RK: /* read keys */ 7510 total_len = sizeof(struct scsi_per_res_in_keys) + 7511 lun->pr_key_count * 7512 sizeof(struct scsi_per_res_key); 7513 break; 7514 case SPRI_RR: /* read reservation */ 7515 if (lun->flags & CTL_LUN_PR_RESERVED) 7516 total_len = sizeof(struct scsi_per_res_in_rsrv); 7517 else 7518 total_len = sizeof(struct scsi_per_res_in_header); 7519 break; 7520 case SPRI_RC: /* report capabilities */ 7521 total_len = sizeof(struct scsi_per_res_cap); 7522 break; 7523 case SPRI_RS: /* read full status */ 7524 total_len = sizeof(struct scsi_per_res_in_header) + 7525 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7526 lun->pr_key_count; 7527 break; 7528 default: 7529 panic("%s: Invalid PR type %#x", __func__, cdb->action); 7530 } 7531 mtx_unlock(&lun->lun_lock); 7532 7533 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7534 ctsio->kern_rel_offset = 0; 7535 ctsio->kern_sg_entries = 0; 7536 ctsio->kern_data_len = min(total_len, alloc_len); 7537 ctsio->kern_total_len = ctsio->kern_data_len; 7538 7539 mtx_lock(&lun->lun_lock); 7540 switch (cdb->action) { 7541 case SPRI_RK: { // read keys 7542 struct scsi_per_res_in_keys *res_keys; 7543 int i, key_count; 7544 7545 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7546 7547 /* 7548 * We had to drop the lock to allocate our buffer, which 7549 * leaves time for someone to come in with another 7550 * persistent reservation. (That is unlikely, though, 7551 * since this should be the only persistent reservation 7552 * command active right now.) 7553 */ 7554 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7555 (lun->pr_key_count * 7556 sizeof(struct scsi_per_res_key)))){ 7557 mtx_unlock(&lun->lun_lock); 7558 free(ctsio->kern_data_ptr, M_CTL); 7559 printf("%s: reservation length changed, retrying\n", 7560 __func__); 7561 goto retry; 7562 } 7563 7564 scsi_ulto4b(lun->pr_generation, res_keys->header.generation); 7565 7566 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7567 lun->pr_key_count, res_keys->header.length); 7568 7569 for (i = 0, key_count = 0; i < CTL_MAX_INITIATORS; i++) { 7570 if ((key = ctl_get_prkey(lun, i)) == 0) 7571 continue; 7572 7573 /* 7574 * We used lun->pr_key_count to calculate the 7575 * size to allocate. If it turns out the number of 7576 * initiators with the registered flag set is 7577 * larger than that (i.e. they haven't been kept in 7578 * sync), we've got a problem. 7579 */ 7580 if (key_count >= lun->pr_key_count) { 7581 key_count++; 7582 continue; 7583 } 7584 scsi_u64to8b(key, res_keys->keys[key_count].key); 7585 key_count++; 7586 } 7587 break; 7588 } 7589 case SPRI_RR: { // read reservation 7590 struct scsi_per_res_in_rsrv *res; 7591 int tmp_len, header_only; 7592 7593 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7594 7595 scsi_ulto4b(lun->pr_generation, res->header.generation); 7596 7597 if (lun->flags & CTL_LUN_PR_RESERVED) 7598 { 7599 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7600 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7601 res->header.length); 7602 header_only = 0; 7603 } else { 7604 tmp_len = sizeof(struct scsi_per_res_in_header); 7605 scsi_ulto4b(0, res->header.length); 7606 header_only = 1; 7607 } 7608 7609 /* 7610 * We had to drop the lock to allocate our buffer, which 7611 * leaves time for someone to come in with another 7612 * persistent reservation. (That is unlikely, though, 7613 * since this should be the only persistent reservation 7614 * command active right now.) 7615 */ 7616 if (tmp_len != total_len) { 7617 mtx_unlock(&lun->lun_lock); 7618 free(ctsio->kern_data_ptr, M_CTL); 7619 printf("%s: reservation status changed, retrying\n", 7620 __func__); 7621 goto retry; 7622 } 7623 7624 /* 7625 * No reservation held, so we're done. 7626 */ 7627 if (header_only != 0) 7628 break; 7629 7630 /* 7631 * If the registration is an All Registrants type, the key 7632 * is 0, since it doesn't really matter. 7633 */ 7634 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7635 scsi_u64to8b(ctl_get_prkey(lun, lun->pr_res_idx), 7636 res->data.reservation); 7637 } 7638 res->data.scopetype = lun->pr_res_type; 7639 break; 7640 } 7641 case SPRI_RC: //report capabilities 7642 { 7643 struct scsi_per_res_cap *res_cap; 7644 uint16_t type_mask; 7645 7646 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7647 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7648 res_cap->flags1 = SPRI_CRH; 7649 res_cap->flags2 = SPRI_TMV | SPRI_ALLOW_5; 7650 type_mask = SPRI_TM_WR_EX_AR | 7651 SPRI_TM_EX_AC_RO | 7652 SPRI_TM_WR_EX_RO | 7653 SPRI_TM_EX_AC | 7654 SPRI_TM_WR_EX | 7655 SPRI_TM_EX_AC_AR; 7656 scsi_ulto2b(type_mask, res_cap->type_mask); 7657 break; 7658 } 7659 case SPRI_RS: { // read full status 7660 struct scsi_per_res_in_full *res_status; 7661 struct scsi_per_res_in_full_desc *res_desc; 7662 struct ctl_port *port; 7663 int i, len; 7664 7665 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7666 7667 /* 7668 * We had to drop the lock to allocate our buffer, which 7669 * leaves time for someone to come in with another 7670 * persistent reservation. (That is unlikely, though, 7671 * since this should be the only persistent reservation 7672 * command active right now.) 7673 */ 7674 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7675 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7676 lun->pr_key_count)){ 7677 mtx_unlock(&lun->lun_lock); 7678 free(ctsio->kern_data_ptr, M_CTL); 7679 printf("%s: reservation length changed, retrying\n", 7680 __func__); 7681 goto retry; 7682 } 7683 7684 scsi_ulto4b(lun->pr_generation, res_status->header.generation); 7685 7686 res_desc = &res_status->desc[0]; 7687 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7688 if ((key = ctl_get_prkey(lun, i)) == 0) 7689 continue; 7690 7691 scsi_u64to8b(key, res_desc->res_key.key); 7692 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7693 (lun->pr_res_idx == i || 7694 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7695 res_desc->flags = SPRI_FULL_R_HOLDER; 7696 res_desc->scopetype = lun->pr_res_type; 7697 } 7698 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7699 res_desc->rel_trgt_port_id); 7700 len = 0; 7701 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT]; 7702 if (port != NULL) 7703 len = ctl_create_iid(port, 7704 i % CTL_MAX_INIT_PER_PORT, 7705 res_desc->transport_id); 7706 scsi_ulto4b(len, res_desc->additional_length); 7707 res_desc = (struct scsi_per_res_in_full_desc *) 7708 &res_desc->transport_id[len]; 7709 } 7710 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7711 res_status->header.length); 7712 break; 7713 } 7714 default: 7715 panic("%s: Invalid PR type %#x", __func__, cdb->action); 7716 } 7717 mtx_unlock(&lun->lun_lock); 7718 7719 ctl_set_success(ctsio); 7720 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7721 ctsio->be_move_done = ctl_config_move_done; 7722 ctl_datamove((union ctl_io *)ctsio); 7723 return (CTL_RETVAL_COMPLETE); 7724} 7725 7726/* 7727 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7728 * it should return. 7729 */ 7730static int 7731ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7732 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7733 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7734 struct scsi_per_res_out_parms* param) 7735{ 7736 union ctl_ha_msg persis_io; 7737 int i; 7738 7739 mtx_lock(&lun->lun_lock); 7740 if (sa_res_key == 0) { 7741 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7742 /* validate scope and type */ 7743 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7744 SPR_LU_SCOPE) { 7745 mtx_unlock(&lun->lun_lock); 7746 ctl_set_invalid_field(/*ctsio*/ ctsio, 7747 /*sks_valid*/ 1, 7748 /*command*/ 1, 7749 /*field*/ 2, 7750 /*bit_valid*/ 1, 7751 /*bit*/ 4); 7752 ctl_done((union ctl_io *)ctsio); 7753 return (1); 7754 } 7755 7756 if (type>8 || type==2 || type==4 || type==0) { 7757 mtx_unlock(&lun->lun_lock); 7758 ctl_set_invalid_field(/*ctsio*/ ctsio, 7759 /*sks_valid*/ 1, 7760 /*command*/ 1, 7761 /*field*/ 2, 7762 /*bit_valid*/ 1, 7763 /*bit*/ 0); 7764 ctl_done((union ctl_io *)ctsio); 7765 return (1); 7766 } 7767 7768 /* 7769 * Unregister everybody else and build UA for 7770 * them 7771 */ 7772 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7773 if (i == residx || ctl_get_prkey(lun, i) == 0) 7774 continue; 7775 7776 ctl_clr_prkey(lun, i); 7777 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7778 } 7779 lun->pr_key_count = 1; 7780 lun->pr_res_type = type; 7781 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 7782 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 7783 lun->pr_res_idx = residx; 7784 lun->pr_generation++; 7785 mtx_unlock(&lun->lun_lock); 7786 7787 /* send msg to other side */ 7788 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7789 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7790 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7791 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7792 persis_io.pr.pr_info.res_type = type; 7793 memcpy(persis_io.pr.pr_info.sa_res_key, 7794 param->serv_act_res_key, 7795 sizeof(param->serv_act_res_key)); 7796 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7797 sizeof(persis_io.pr), M_WAITOK); 7798 } else { 7799 /* not all registrants */ 7800 mtx_unlock(&lun->lun_lock); 7801 free(ctsio->kern_data_ptr, M_CTL); 7802 ctl_set_invalid_field(ctsio, 7803 /*sks_valid*/ 1, 7804 /*command*/ 0, 7805 /*field*/ 8, 7806 /*bit_valid*/ 0, 7807 /*bit*/ 0); 7808 ctl_done((union ctl_io *)ctsio); 7809 return (1); 7810 } 7811 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7812 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 7813 int found = 0; 7814 7815 if (res_key == sa_res_key) { 7816 /* special case */ 7817 /* 7818 * The spec implies this is not good but doesn't 7819 * say what to do. There are two choices either 7820 * generate a res conflict or check condition 7821 * with illegal field in parameter data. Since 7822 * that is what is done when the sa_res_key is 7823 * zero I'll take that approach since this has 7824 * to do with the sa_res_key. 7825 */ 7826 mtx_unlock(&lun->lun_lock); 7827 free(ctsio->kern_data_ptr, M_CTL); 7828 ctl_set_invalid_field(ctsio, 7829 /*sks_valid*/ 1, 7830 /*command*/ 0, 7831 /*field*/ 8, 7832 /*bit_valid*/ 0, 7833 /*bit*/ 0); 7834 ctl_done((union ctl_io *)ctsio); 7835 return (1); 7836 } 7837 7838 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7839 if (ctl_get_prkey(lun, i) != sa_res_key) 7840 continue; 7841 7842 found = 1; 7843 ctl_clr_prkey(lun, i); 7844 lun->pr_key_count--; 7845 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7846 } 7847 if (!found) { 7848 mtx_unlock(&lun->lun_lock); 7849 free(ctsio->kern_data_ptr, M_CTL); 7850 ctl_set_reservation_conflict(ctsio); 7851 ctl_done((union ctl_io *)ctsio); 7852 return (CTL_RETVAL_COMPLETE); 7853 } 7854 lun->pr_generation++; 7855 mtx_unlock(&lun->lun_lock); 7856 7857 /* send msg to other side */ 7858 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7859 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7860 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7861 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7862 persis_io.pr.pr_info.res_type = type; 7863 memcpy(persis_io.pr.pr_info.sa_res_key, 7864 param->serv_act_res_key, 7865 sizeof(param->serv_act_res_key)); 7866 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7867 sizeof(persis_io.pr), M_WAITOK); 7868 } else { 7869 /* Reserved but not all registrants */ 7870 /* sa_res_key is res holder */ 7871 if (sa_res_key == ctl_get_prkey(lun, lun->pr_res_idx)) { 7872 /* validate scope and type */ 7873 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7874 SPR_LU_SCOPE) { 7875 mtx_unlock(&lun->lun_lock); 7876 ctl_set_invalid_field(/*ctsio*/ ctsio, 7877 /*sks_valid*/ 1, 7878 /*command*/ 1, 7879 /*field*/ 2, 7880 /*bit_valid*/ 1, 7881 /*bit*/ 4); 7882 ctl_done((union ctl_io *)ctsio); 7883 return (1); 7884 } 7885 7886 if (type>8 || type==2 || type==4 || type==0) { 7887 mtx_unlock(&lun->lun_lock); 7888 ctl_set_invalid_field(/*ctsio*/ ctsio, 7889 /*sks_valid*/ 1, 7890 /*command*/ 1, 7891 /*field*/ 2, 7892 /*bit_valid*/ 1, 7893 /*bit*/ 0); 7894 ctl_done((union ctl_io *)ctsio); 7895 return (1); 7896 } 7897 7898 /* 7899 * Do the following: 7900 * if sa_res_key != res_key remove all 7901 * registrants w/sa_res_key and generate UA 7902 * for these registrants(Registrations 7903 * Preempted) if it wasn't an exclusive 7904 * reservation generate UA(Reservations 7905 * Preempted) for all other registered nexuses 7906 * if the type has changed. Establish the new 7907 * reservation and holder. If res_key and 7908 * sa_res_key are the same do the above 7909 * except don't unregister the res holder. 7910 */ 7911 7912 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7913 if (i == residx || ctl_get_prkey(lun, i) == 0) 7914 continue; 7915 7916 if (sa_res_key == ctl_get_prkey(lun, i)) { 7917 ctl_clr_prkey(lun, i); 7918 lun->pr_key_count--; 7919 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7920 } else if (type != lun->pr_res_type && 7921 (lun->pr_res_type == SPR_TYPE_WR_EX_RO || 7922 lun->pr_res_type == SPR_TYPE_EX_AC_RO)) { 7923 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 7924 } 7925 } 7926 lun->pr_res_type = type; 7927 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 7928 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 7929 lun->pr_res_idx = residx; 7930 else 7931 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 7932 lun->pr_generation++; 7933 mtx_unlock(&lun->lun_lock); 7934 7935 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7936 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7937 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7938 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7939 persis_io.pr.pr_info.res_type = type; 7940 memcpy(persis_io.pr.pr_info.sa_res_key, 7941 param->serv_act_res_key, 7942 sizeof(param->serv_act_res_key)); 7943 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7944 sizeof(persis_io.pr), M_WAITOK); 7945 } else { 7946 /* 7947 * sa_res_key is not the res holder just 7948 * remove registrants 7949 */ 7950 int found=0; 7951 7952 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7953 if (sa_res_key != ctl_get_prkey(lun, i)) 7954 continue; 7955 7956 found = 1; 7957 ctl_clr_prkey(lun, i); 7958 lun->pr_key_count--; 7959 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7960 } 7961 7962 if (!found) { 7963 mtx_unlock(&lun->lun_lock); 7964 free(ctsio->kern_data_ptr, M_CTL); 7965 ctl_set_reservation_conflict(ctsio); 7966 ctl_done((union ctl_io *)ctsio); 7967 return (1); 7968 } 7969 lun->pr_generation++; 7970 mtx_unlock(&lun->lun_lock); 7971 7972 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7973 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7974 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7975 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7976 persis_io.pr.pr_info.res_type = type; 7977 memcpy(persis_io.pr.pr_info.sa_res_key, 7978 param->serv_act_res_key, 7979 sizeof(param->serv_act_res_key)); 7980 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7981 sizeof(persis_io.pr), M_WAITOK); 7982 } 7983 } 7984 return (0); 7985} 7986 7987static void 7988ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 7989{ 7990 uint64_t sa_res_key; 7991 int i; 7992 7993 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 7994 7995 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7996 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 7997 || sa_res_key != ctl_get_prkey(lun, lun->pr_res_idx)) { 7998 if (sa_res_key == 0) { 7999 /* 8000 * Unregister everybody else and build UA for 8001 * them 8002 */ 8003 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 8004 if (i == msg->pr.pr_info.residx || 8005 ctl_get_prkey(lun, i) == 0) 8006 continue; 8007 8008 ctl_clr_prkey(lun, i); 8009 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8010 } 8011 8012 lun->pr_key_count = 1; 8013 lun->pr_res_type = msg->pr.pr_info.res_type; 8014 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8015 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8016 lun->pr_res_idx = msg->pr.pr_info.residx; 8017 } else { 8018 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8019 if (sa_res_key == ctl_get_prkey(lun, i)) 8020 continue; 8021 8022 ctl_clr_prkey(lun, i); 8023 lun->pr_key_count--; 8024 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8025 } 8026 } 8027 } else { 8028 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8029 if (i == msg->pr.pr_info.residx || 8030 ctl_get_prkey(lun, i) == 0) 8031 continue; 8032 8033 if (sa_res_key == ctl_get_prkey(lun, i)) { 8034 ctl_clr_prkey(lun, i); 8035 lun->pr_key_count--; 8036 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8037 } else if (msg->pr.pr_info.res_type != lun->pr_res_type 8038 && (lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8039 lun->pr_res_type == SPR_TYPE_EX_AC_RO)) { 8040 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8041 } 8042 } 8043 lun->pr_res_type = msg->pr.pr_info.res_type; 8044 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8045 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8046 lun->pr_res_idx = msg->pr.pr_info.residx; 8047 else 8048 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8049 } 8050 lun->pr_generation++; 8051 8052} 8053 8054 8055int 8056ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8057{ 8058 struct ctl_softc *softc = CTL_SOFTC(ctsio); 8059 struct ctl_lun *lun = CTL_LUN(ctsio); 8060 int retval; 8061 u_int32_t param_len; 8062 struct scsi_per_res_out *cdb; 8063 struct scsi_per_res_out_parms* param; 8064 uint32_t residx; 8065 uint64_t res_key, sa_res_key, key; 8066 uint8_t type; 8067 union ctl_ha_msg persis_io; 8068 int i; 8069 8070 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8071 8072 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8073 retval = CTL_RETVAL_COMPLETE; 8074 8075 /* 8076 * We only support whole-LUN scope. The scope & type are ignored for 8077 * register, register and ignore existing key and clear. 8078 * We sometimes ignore scope and type on preempts too!! 8079 * Verify reservation type here as well. 8080 */ 8081 type = cdb->scope_type & SPR_TYPE_MASK; 8082 if ((cdb->action == SPRO_RESERVE) 8083 || (cdb->action == SPRO_RELEASE)) { 8084 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8085 ctl_set_invalid_field(/*ctsio*/ ctsio, 8086 /*sks_valid*/ 1, 8087 /*command*/ 1, 8088 /*field*/ 2, 8089 /*bit_valid*/ 1, 8090 /*bit*/ 4); 8091 ctl_done((union ctl_io *)ctsio); 8092 return (CTL_RETVAL_COMPLETE); 8093 } 8094 8095 if (type>8 || type==2 || type==4 || type==0) { 8096 ctl_set_invalid_field(/*ctsio*/ ctsio, 8097 /*sks_valid*/ 1, 8098 /*command*/ 1, 8099 /*field*/ 2, 8100 /*bit_valid*/ 1, 8101 /*bit*/ 0); 8102 ctl_done((union ctl_io *)ctsio); 8103 return (CTL_RETVAL_COMPLETE); 8104 } 8105 } 8106 8107 param_len = scsi_4btoul(cdb->length); 8108 8109 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8110 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8111 ctsio->kern_data_len = param_len; 8112 ctsio->kern_total_len = param_len; 8113 ctsio->kern_rel_offset = 0; 8114 ctsio->kern_sg_entries = 0; 8115 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8116 ctsio->be_move_done = ctl_config_move_done; 8117 ctl_datamove((union ctl_io *)ctsio); 8118 8119 return (CTL_RETVAL_COMPLETE); 8120 } 8121 8122 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8123 8124 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 8125 res_key = scsi_8btou64(param->res_key.key); 8126 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8127 8128 /* 8129 * Validate the reservation key here except for SPRO_REG_IGNO 8130 * This must be done for all other service actions 8131 */ 8132 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8133 mtx_lock(&lun->lun_lock); 8134 if ((key = ctl_get_prkey(lun, residx)) != 0) { 8135 if (res_key != key) { 8136 /* 8137 * The current key passed in doesn't match 8138 * the one the initiator previously 8139 * registered. 8140 */ 8141 mtx_unlock(&lun->lun_lock); 8142 free(ctsio->kern_data_ptr, M_CTL); 8143 ctl_set_reservation_conflict(ctsio); 8144 ctl_done((union ctl_io *)ctsio); 8145 return (CTL_RETVAL_COMPLETE); 8146 } 8147 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8148 /* 8149 * We are not registered 8150 */ 8151 mtx_unlock(&lun->lun_lock); 8152 free(ctsio->kern_data_ptr, M_CTL); 8153 ctl_set_reservation_conflict(ctsio); 8154 ctl_done((union ctl_io *)ctsio); 8155 return (CTL_RETVAL_COMPLETE); 8156 } else if (res_key != 0) { 8157 /* 8158 * We are not registered and trying to register but 8159 * the register key isn't zero. 8160 */ 8161 mtx_unlock(&lun->lun_lock); 8162 free(ctsio->kern_data_ptr, M_CTL); 8163 ctl_set_reservation_conflict(ctsio); 8164 ctl_done((union ctl_io *)ctsio); 8165 return (CTL_RETVAL_COMPLETE); 8166 } 8167 mtx_unlock(&lun->lun_lock); 8168 } 8169 8170 switch (cdb->action & SPRO_ACTION_MASK) { 8171 case SPRO_REGISTER: 8172 case SPRO_REG_IGNO: { 8173 8174 /* 8175 * We don't support any of these options, as we report in 8176 * the read capabilities request (see 8177 * ctl_persistent_reserve_in(), above). 8178 */ 8179 if ((param->flags & SPR_SPEC_I_PT) 8180 || (param->flags & SPR_ALL_TG_PT) 8181 || (param->flags & SPR_APTPL)) { 8182 int bit_ptr; 8183 8184 if (param->flags & SPR_APTPL) 8185 bit_ptr = 0; 8186 else if (param->flags & SPR_ALL_TG_PT) 8187 bit_ptr = 2; 8188 else /* SPR_SPEC_I_PT */ 8189 bit_ptr = 3; 8190 8191 free(ctsio->kern_data_ptr, M_CTL); 8192 ctl_set_invalid_field(ctsio, 8193 /*sks_valid*/ 1, 8194 /*command*/ 0, 8195 /*field*/ 20, 8196 /*bit_valid*/ 1, 8197 /*bit*/ bit_ptr); 8198 ctl_done((union ctl_io *)ctsio); 8199 return (CTL_RETVAL_COMPLETE); 8200 } 8201 8202 mtx_lock(&lun->lun_lock); 8203 8204 /* 8205 * The initiator wants to clear the 8206 * key/unregister. 8207 */ 8208 if (sa_res_key == 0) { 8209 if ((res_key == 0 8210 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8211 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8212 && ctl_get_prkey(lun, residx) == 0)) { 8213 mtx_unlock(&lun->lun_lock); 8214 goto done; 8215 } 8216 8217 ctl_clr_prkey(lun, residx); 8218 lun->pr_key_count--; 8219 8220 if (residx == lun->pr_res_idx) { 8221 lun->flags &= ~CTL_LUN_PR_RESERVED; 8222 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8223 8224 if ((lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8225 lun->pr_res_type == SPR_TYPE_EX_AC_RO) && 8226 lun->pr_key_count) { 8227 /* 8228 * If the reservation is a registrants 8229 * only type we need to generate a UA 8230 * for other registered inits. The 8231 * sense code should be RESERVATIONS 8232 * RELEASED 8233 */ 8234 8235 for (i = softc->init_min; i < softc->init_max; i++){ 8236 if (ctl_get_prkey(lun, i) == 0) 8237 continue; 8238 ctl_est_ua(lun, i, 8239 CTL_UA_RES_RELEASE); 8240 } 8241 } 8242 lun->pr_res_type = 0; 8243 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8244 if (lun->pr_key_count==0) { 8245 lun->flags &= ~CTL_LUN_PR_RESERVED; 8246 lun->pr_res_type = 0; 8247 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8248 } 8249 } 8250 lun->pr_generation++; 8251 mtx_unlock(&lun->lun_lock); 8252 8253 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8254 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8255 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8256 persis_io.pr.pr_info.residx = residx; 8257 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8258 sizeof(persis_io.pr), M_WAITOK); 8259 } else /* sa_res_key != 0 */ { 8260 8261 /* 8262 * If we aren't registered currently then increment 8263 * the key count and set the registered flag. 8264 */ 8265 ctl_alloc_prkey(lun, residx); 8266 if (ctl_get_prkey(lun, residx) == 0) 8267 lun->pr_key_count++; 8268 ctl_set_prkey(lun, residx, sa_res_key); 8269 lun->pr_generation++; 8270 mtx_unlock(&lun->lun_lock); 8271 8272 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8273 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8274 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8275 persis_io.pr.pr_info.residx = residx; 8276 memcpy(persis_io.pr.pr_info.sa_res_key, 8277 param->serv_act_res_key, 8278 sizeof(param->serv_act_res_key)); 8279 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8280 sizeof(persis_io.pr), M_WAITOK); 8281 } 8282 8283 break; 8284 } 8285 case SPRO_RESERVE: 8286 mtx_lock(&lun->lun_lock); 8287 if (lun->flags & CTL_LUN_PR_RESERVED) { 8288 /* 8289 * if this isn't the reservation holder and it's 8290 * not a "all registrants" type or if the type is 8291 * different then we have a conflict 8292 */ 8293 if ((lun->pr_res_idx != residx 8294 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8295 || lun->pr_res_type != type) { 8296 mtx_unlock(&lun->lun_lock); 8297 free(ctsio->kern_data_ptr, M_CTL); 8298 ctl_set_reservation_conflict(ctsio); 8299 ctl_done((union ctl_io *)ctsio); 8300 return (CTL_RETVAL_COMPLETE); 8301 } 8302 mtx_unlock(&lun->lun_lock); 8303 } else /* create a reservation */ { 8304 /* 8305 * If it's not an "all registrants" type record 8306 * reservation holder 8307 */ 8308 if (type != SPR_TYPE_WR_EX_AR 8309 && type != SPR_TYPE_EX_AC_AR) 8310 lun->pr_res_idx = residx; /* Res holder */ 8311 else 8312 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8313 8314 lun->flags |= CTL_LUN_PR_RESERVED; 8315 lun->pr_res_type = type; 8316 8317 mtx_unlock(&lun->lun_lock); 8318 8319 /* send msg to other side */ 8320 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8321 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8322 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8323 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8324 persis_io.pr.pr_info.res_type = type; 8325 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8326 sizeof(persis_io.pr), M_WAITOK); 8327 } 8328 break; 8329 8330 case SPRO_RELEASE: 8331 mtx_lock(&lun->lun_lock); 8332 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8333 /* No reservation exists return good status */ 8334 mtx_unlock(&lun->lun_lock); 8335 goto done; 8336 } 8337 /* 8338 * Is this nexus a reservation holder? 8339 */ 8340 if (lun->pr_res_idx != residx 8341 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8342 /* 8343 * not a res holder return good status but 8344 * do nothing 8345 */ 8346 mtx_unlock(&lun->lun_lock); 8347 goto done; 8348 } 8349 8350 if (lun->pr_res_type != type) { 8351 mtx_unlock(&lun->lun_lock); 8352 free(ctsio->kern_data_ptr, M_CTL); 8353 ctl_set_illegal_pr_release(ctsio); 8354 ctl_done((union ctl_io *)ctsio); 8355 return (CTL_RETVAL_COMPLETE); 8356 } 8357 8358 /* okay to release */ 8359 lun->flags &= ~CTL_LUN_PR_RESERVED; 8360 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8361 lun->pr_res_type = 0; 8362 8363 /* 8364 * If this isn't an exclusive access reservation and NUAR 8365 * is not set, generate UA for all other registrants. 8366 */ 8367 if (type != SPR_TYPE_EX_AC && type != SPR_TYPE_WR_EX && 8368 (lun->MODE_CTRL.queue_flags & SCP_NUAR) == 0) { 8369 for (i = softc->init_min; i < softc->init_max; i++) { 8370 if (i == residx || ctl_get_prkey(lun, i) == 0) 8371 continue; 8372 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8373 } 8374 } 8375 mtx_unlock(&lun->lun_lock); 8376 8377 /* Send msg to other side */ 8378 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8379 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8380 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8381 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8382 sizeof(persis_io.pr), M_WAITOK); 8383 break; 8384 8385 case SPRO_CLEAR: 8386 /* send msg to other side */ 8387 8388 mtx_lock(&lun->lun_lock); 8389 lun->flags &= ~CTL_LUN_PR_RESERVED; 8390 lun->pr_res_type = 0; 8391 lun->pr_key_count = 0; 8392 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8393 8394 ctl_clr_prkey(lun, residx); 8395 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8396 if (ctl_get_prkey(lun, i) != 0) { 8397 ctl_clr_prkey(lun, i); 8398 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8399 } 8400 lun->pr_generation++; 8401 mtx_unlock(&lun->lun_lock); 8402 8403 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8404 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8405 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8406 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8407 sizeof(persis_io.pr), M_WAITOK); 8408 break; 8409 8410 case SPRO_PREEMPT: 8411 case SPRO_PRE_ABO: { 8412 int nretval; 8413 8414 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8415 residx, ctsio, cdb, param); 8416 if (nretval != 0) 8417 return (CTL_RETVAL_COMPLETE); 8418 break; 8419 } 8420 default: 8421 panic("%s: Invalid PR type %#x", __func__, cdb->action); 8422 } 8423 8424done: 8425 free(ctsio->kern_data_ptr, M_CTL); 8426 ctl_set_success(ctsio); 8427 ctl_done((union ctl_io *)ctsio); 8428 8429 return (retval); 8430} 8431 8432/* 8433 * This routine is for handling a message from the other SC pertaining to 8434 * persistent reserve out. All the error checking will have been done 8435 * so only perorming the action need be done here to keep the two 8436 * in sync. 8437 */ 8438static void 8439ctl_hndl_per_res_out_on_other_sc(union ctl_io *io) 8440{ 8441 struct ctl_softc *softc = CTL_SOFTC(io); 8442 union ctl_ha_msg *msg = (union ctl_ha_msg *)&io->presio.pr_msg; 8443 struct ctl_lun *lun; 8444 int i; 8445 uint32_t residx, targ_lun; 8446 8447 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8448 mtx_lock(&softc->ctl_lock); 8449 if (targ_lun >= ctl_max_luns || 8450 (lun = softc->ctl_luns[targ_lun]) == NULL) { 8451 mtx_unlock(&softc->ctl_lock); 8452 return; 8453 } 8454 mtx_lock(&lun->lun_lock); 8455 mtx_unlock(&softc->ctl_lock); 8456 if (lun->flags & CTL_LUN_DISABLED) { 8457 mtx_unlock(&lun->lun_lock); 8458 return; 8459 } 8460 residx = ctl_get_initindex(&msg->hdr.nexus); 8461 switch(msg->pr.pr_info.action) { 8462 case CTL_PR_REG_KEY: 8463 ctl_alloc_prkey(lun, msg->pr.pr_info.residx); 8464 if (ctl_get_prkey(lun, msg->pr.pr_info.residx) == 0) 8465 lun->pr_key_count++; 8466 ctl_set_prkey(lun, msg->pr.pr_info.residx, 8467 scsi_8btou64(msg->pr.pr_info.sa_res_key)); 8468 lun->pr_generation++; 8469 break; 8470 8471 case CTL_PR_UNREG_KEY: 8472 ctl_clr_prkey(lun, msg->pr.pr_info.residx); 8473 lun->pr_key_count--; 8474 8475 /* XXX Need to see if the reservation has been released */ 8476 /* if so do we need to generate UA? */ 8477 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8478 lun->flags &= ~CTL_LUN_PR_RESERVED; 8479 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8480 8481 if ((lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8482 lun->pr_res_type == SPR_TYPE_EX_AC_RO) && 8483 lun->pr_key_count) { 8484 /* 8485 * If the reservation is a registrants 8486 * only type we need to generate a UA 8487 * for other registered inits. The 8488 * sense code should be RESERVATIONS 8489 * RELEASED 8490 */ 8491 8492 for (i = softc->init_min; i < softc->init_max; i++) { 8493 if (ctl_get_prkey(lun, i) == 0) 8494 continue; 8495 8496 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8497 } 8498 } 8499 lun->pr_res_type = 0; 8500 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8501 if (lun->pr_key_count==0) { 8502 lun->flags &= ~CTL_LUN_PR_RESERVED; 8503 lun->pr_res_type = 0; 8504 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8505 } 8506 } 8507 lun->pr_generation++; 8508 break; 8509 8510 case CTL_PR_RESERVE: 8511 lun->flags |= CTL_LUN_PR_RESERVED; 8512 lun->pr_res_type = msg->pr.pr_info.res_type; 8513 lun->pr_res_idx = msg->pr.pr_info.residx; 8514 8515 break; 8516 8517 case CTL_PR_RELEASE: 8518 /* 8519 * If this isn't an exclusive access reservation and NUAR 8520 * is not set, generate UA for all other registrants. 8521 */ 8522 if (lun->pr_res_type != SPR_TYPE_EX_AC && 8523 lun->pr_res_type != SPR_TYPE_WR_EX && 8524 (lun->MODE_CTRL.queue_flags & SCP_NUAR) == 0) { 8525 for (i = softc->init_min; i < softc->init_max; i++) { 8526 if (i == residx || ctl_get_prkey(lun, i) == 0) 8527 continue; 8528 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8529 } 8530 } 8531 8532 lun->flags &= ~CTL_LUN_PR_RESERVED; 8533 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8534 lun->pr_res_type = 0; 8535 break; 8536 8537 case CTL_PR_PREEMPT: 8538 ctl_pro_preempt_other(lun, msg); 8539 break; 8540 case CTL_PR_CLEAR: 8541 lun->flags &= ~CTL_LUN_PR_RESERVED; 8542 lun->pr_res_type = 0; 8543 lun->pr_key_count = 0; 8544 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8545 8546 for (i=0; i < CTL_MAX_INITIATORS; i++) { 8547 if (ctl_get_prkey(lun, i) == 0) 8548 continue; 8549 ctl_clr_prkey(lun, i); 8550 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8551 } 8552 lun->pr_generation++; 8553 break; 8554 } 8555 8556 mtx_unlock(&lun->lun_lock); 8557} 8558 8559int 8560ctl_read_write(struct ctl_scsiio *ctsio) 8561{ 8562 struct ctl_lun *lun = CTL_LUN(ctsio); 8563 struct ctl_lba_len_flags *lbalen; 8564 uint64_t lba; 8565 uint32_t num_blocks; 8566 int flags, retval; 8567 int isread; 8568 8569 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8570 8571 flags = 0; 8572 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8573 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8574 switch (ctsio->cdb[0]) { 8575 case READ_6: 8576 case WRITE_6: { 8577 struct scsi_rw_6 *cdb; 8578 8579 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8580 8581 lba = scsi_3btoul(cdb->addr); 8582 /* only 5 bits are valid in the most significant address byte */ 8583 lba &= 0x1fffff; 8584 num_blocks = cdb->length; 8585 /* 8586 * This is correct according to SBC-2. 8587 */ 8588 if (num_blocks == 0) 8589 num_blocks = 256; 8590 break; 8591 } 8592 case READ_10: 8593 case WRITE_10: { 8594 struct scsi_rw_10 *cdb; 8595 8596 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8597 if (cdb->byte2 & SRW10_FUA) 8598 flags |= CTL_LLF_FUA; 8599 if (cdb->byte2 & SRW10_DPO) 8600 flags |= CTL_LLF_DPO; 8601 lba = scsi_4btoul(cdb->addr); 8602 num_blocks = scsi_2btoul(cdb->length); 8603 break; 8604 } 8605 case WRITE_VERIFY_10: { 8606 struct scsi_write_verify_10 *cdb; 8607 8608 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8609 flags |= CTL_LLF_FUA; 8610 if (cdb->byte2 & SWV_DPO) 8611 flags |= CTL_LLF_DPO; 8612 lba = scsi_4btoul(cdb->addr); 8613 num_blocks = scsi_2btoul(cdb->length); 8614 break; 8615 } 8616 case READ_12: 8617 case WRITE_12: { 8618 struct scsi_rw_12 *cdb; 8619 8620 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8621 if (cdb->byte2 & SRW12_FUA) 8622 flags |= CTL_LLF_FUA; 8623 if (cdb->byte2 & SRW12_DPO) 8624 flags |= CTL_LLF_DPO; 8625 lba = scsi_4btoul(cdb->addr); 8626 num_blocks = scsi_4btoul(cdb->length); 8627 break; 8628 } 8629 case WRITE_VERIFY_12: { 8630 struct scsi_write_verify_12 *cdb; 8631 8632 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8633 flags |= CTL_LLF_FUA; 8634 if (cdb->byte2 & SWV_DPO) 8635 flags |= CTL_LLF_DPO; 8636 lba = scsi_4btoul(cdb->addr); 8637 num_blocks = scsi_4btoul(cdb->length); 8638 break; 8639 } 8640 case READ_16: 8641 case WRITE_16: { 8642 struct scsi_rw_16 *cdb; 8643 8644 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8645 if (cdb->byte2 & SRW12_FUA) 8646 flags |= CTL_LLF_FUA; 8647 if (cdb->byte2 & SRW12_DPO) 8648 flags |= CTL_LLF_DPO; 8649 lba = scsi_8btou64(cdb->addr); 8650 num_blocks = scsi_4btoul(cdb->length); 8651 break; 8652 } 8653 case WRITE_ATOMIC_16: { 8654 struct scsi_write_atomic_16 *cdb; 8655 8656 if (lun->be_lun->atomicblock == 0) { 8657 ctl_set_invalid_opcode(ctsio); 8658 ctl_done((union ctl_io *)ctsio); 8659 return (CTL_RETVAL_COMPLETE); 8660 } 8661 8662 cdb = (struct scsi_write_atomic_16 *)ctsio->cdb; 8663 if (cdb->byte2 & SRW12_FUA) 8664 flags |= CTL_LLF_FUA; 8665 if (cdb->byte2 & SRW12_DPO) 8666 flags |= CTL_LLF_DPO; 8667 lba = scsi_8btou64(cdb->addr); 8668 num_blocks = scsi_2btoul(cdb->length); 8669 if (num_blocks > lun->be_lun->atomicblock) { 8670 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8671 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8672 /*bit*/ 0); 8673 ctl_done((union ctl_io *)ctsio); 8674 return (CTL_RETVAL_COMPLETE); 8675 } 8676 break; 8677 } 8678 case WRITE_VERIFY_16: { 8679 struct scsi_write_verify_16 *cdb; 8680 8681 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8682 flags |= CTL_LLF_FUA; 8683 if (cdb->byte2 & SWV_DPO) 8684 flags |= CTL_LLF_DPO; 8685 lba = scsi_8btou64(cdb->addr); 8686 num_blocks = scsi_4btoul(cdb->length); 8687 break; 8688 } 8689 default: 8690 /* 8691 * We got a command we don't support. This shouldn't 8692 * happen, commands should be filtered out above us. 8693 */ 8694 ctl_set_invalid_opcode(ctsio); 8695 ctl_done((union ctl_io *)ctsio); 8696 8697 return (CTL_RETVAL_COMPLETE); 8698 break; /* NOTREACHED */ 8699 } 8700 8701 /* 8702 * The first check is to make sure we're in bounds, the second 8703 * check is to catch wrap-around problems. If the lba + num blocks 8704 * is less than the lba, then we've wrapped around and the block 8705 * range is invalid anyway. 8706 */ 8707 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8708 || ((lba + num_blocks) < lba)) { 8709 ctl_set_lba_out_of_range(ctsio, 8710 MAX(lba, lun->be_lun->maxlba + 1)); 8711 ctl_done((union ctl_io *)ctsio); 8712 return (CTL_RETVAL_COMPLETE); 8713 } 8714 8715 /* 8716 * According to SBC-3, a transfer length of 0 is not an error. 8717 * Note that this cannot happen with WRITE(6) or READ(6), since 0 8718 * translates to 256 blocks for those commands. 8719 */ 8720 if (num_blocks == 0) { 8721 ctl_set_success(ctsio); 8722 ctl_done((union ctl_io *)ctsio); 8723 return (CTL_RETVAL_COMPLETE); 8724 } 8725 8726 /* Set FUA and/or DPO if caches are disabled. */ 8727 if (isread) { 8728 if ((lun->MODE_CACHING.flags1 & SCP_RCD) != 0) 8729 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 8730 } else { 8731 if ((lun->MODE_CACHING.flags1 & SCP_WCE) == 0) 8732 flags |= CTL_LLF_FUA; 8733 } 8734 8735 lbalen = (struct ctl_lba_len_flags *) 8736 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8737 lbalen->lba = lba; 8738 lbalen->len = num_blocks; 8739 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 8740 8741 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8742 ctsio->kern_rel_offset = 0; 8743 8744 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 8745 8746 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8747 return (retval); 8748} 8749 8750static int 8751ctl_cnw_cont(union ctl_io *io) 8752{ 8753 struct ctl_lun *lun = CTL_LUN(io); 8754 struct ctl_scsiio *ctsio; 8755 struct ctl_lba_len_flags *lbalen; 8756 int retval; 8757 8758 ctsio = &io->scsiio; 8759 ctsio->io_hdr.status = CTL_STATUS_NONE; 8760 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 8761 lbalen = (struct ctl_lba_len_flags *) 8762 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8763 lbalen->flags &= ~CTL_LLF_COMPARE; 8764 lbalen->flags |= CTL_LLF_WRITE; 8765 8766 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 8767 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8768 return (retval); 8769} 8770 8771int 8772ctl_cnw(struct ctl_scsiio *ctsio) 8773{ 8774 struct ctl_lun *lun = CTL_LUN(ctsio); 8775 struct ctl_lba_len_flags *lbalen; 8776 uint64_t lba; 8777 uint32_t num_blocks; 8778 int flags, retval; 8779 8780 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 8781 8782 flags = 0; 8783 switch (ctsio->cdb[0]) { 8784 case COMPARE_AND_WRITE: { 8785 struct scsi_compare_and_write *cdb; 8786 8787 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 8788 if (cdb->byte2 & SRW10_FUA) 8789 flags |= CTL_LLF_FUA; 8790 if (cdb->byte2 & SRW10_DPO) 8791 flags |= CTL_LLF_DPO; 8792 lba = scsi_8btou64(cdb->addr); 8793 num_blocks = cdb->length; 8794 break; 8795 } 8796 default: 8797 /* 8798 * We got a command we don't support. This shouldn't 8799 * happen, commands should be filtered out above us. 8800 */ 8801 ctl_set_invalid_opcode(ctsio); 8802 ctl_done((union ctl_io *)ctsio); 8803 8804 return (CTL_RETVAL_COMPLETE); 8805 break; /* NOTREACHED */ 8806 } 8807 8808 /* 8809 * The first check is to make sure we're in bounds, the second 8810 * check is to catch wrap-around problems. If the lba + num blocks 8811 * is less than the lba, then we've wrapped around and the block 8812 * range is invalid anyway. 8813 */ 8814 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8815 || ((lba + num_blocks) < lba)) { 8816 ctl_set_lba_out_of_range(ctsio, 8817 MAX(lba, lun->be_lun->maxlba + 1)); 8818 ctl_done((union ctl_io *)ctsio); 8819 return (CTL_RETVAL_COMPLETE); 8820 } 8821 8822 /* 8823 * According to SBC-3, a transfer length of 0 is not an error. 8824 */ 8825 if (num_blocks == 0) { 8826 ctl_set_success(ctsio); 8827 ctl_done((union ctl_io *)ctsio); 8828 return (CTL_RETVAL_COMPLETE); 8829 } 8830 8831 /* Set FUA if write cache is disabled. */ 8832 if ((lun->MODE_CACHING.flags1 & SCP_WCE) == 0) 8833 flags |= CTL_LLF_FUA; 8834 8835 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 8836 ctsio->kern_rel_offset = 0; 8837 8838 /* 8839 * Set the IO_CONT flag, so that if this I/O gets passed to 8840 * ctl_data_submit_done(), it'll get passed back to 8841 * ctl_ctl_cnw_cont() for further processing. 8842 */ 8843 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 8844 ctsio->io_cont = ctl_cnw_cont; 8845 8846 lbalen = (struct ctl_lba_len_flags *) 8847 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8848 lbalen->lba = lba; 8849 lbalen->len = num_blocks; 8850 lbalen->flags = CTL_LLF_COMPARE | flags; 8851 8852 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 8853 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8854 return (retval); 8855} 8856 8857int 8858ctl_verify(struct ctl_scsiio *ctsio) 8859{ 8860 struct ctl_lun *lun = CTL_LUN(ctsio); 8861 struct ctl_lba_len_flags *lbalen; 8862 uint64_t lba; 8863 uint32_t num_blocks; 8864 int bytchk, flags; 8865 int retval; 8866 8867 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 8868 8869 bytchk = 0; 8870 flags = CTL_LLF_FUA; 8871 switch (ctsio->cdb[0]) { 8872 case VERIFY_10: { 8873 struct scsi_verify_10 *cdb; 8874 8875 cdb = (struct scsi_verify_10 *)ctsio->cdb; 8876 if (cdb->byte2 & SVFY_BYTCHK) 8877 bytchk = 1; 8878 if (cdb->byte2 & SVFY_DPO) 8879 flags |= CTL_LLF_DPO; 8880 lba = scsi_4btoul(cdb->addr); 8881 num_blocks = scsi_2btoul(cdb->length); 8882 break; 8883 } 8884 case VERIFY_12: { 8885 struct scsi_verify_12 *cdb; 8886 8887 cdb = (struct scsi_verify_12 *)ctsio->cdb; 8888 if (cdb->byte2 & SVFY_BYTCHK) 8889 bytchk = 1; 8890 if (cdb->byte2 & SVFY_DPO) 8891 flags |= CTL_LLF_DPO; 8892 lba = scsi_4btoul(cdb->addr); 8893 num_blocks = scsi_4btoul(cdb->length); 8894 break; 8895 } 8896 case VERIFY_16: { 8897 struct scsi_rw_16 *cdb; 8898 8899 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8900 if (cdb->byte2 & SVFY_BYTCHK) 8901 bytchk = 1; 8902 if (cdb->byte2 & SVFY_DPO) 8903 flags |= CTL_LLF_DPO; 8904 lba = scsi_8btou64(cdb->addr); 8905 num_blocks = scsi_4btoul(cdb->length); 8906 break; 8907 } 8908 default: 8909 /* 8910 * We got a command we don't support. This shouldn't 8911 * happen, commands should be filtered out above us. 8912 */ 8913 ctl_set_invalid_opcode(ctsio); 8914 ctl_done((union ctl_io *)ctsio); 8915 return (CTL_RETVAL_COMPLETE); 8916 } 8917 8918 /* 8919 * The first check is to make sure we're in bounds, the second 8920 * check is to catch wrap-around problems. If the lba + num blocks 8921 * is less than the lba, then we've wrapped around and the block 8922 * range is invalid anyway. 8923 */ 8924 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8925 || ((lba + num_blocks) < lba)) { 8926 ctl_set_lba_out_of_range(ctsio, 8927 MAX(lba, lun->be_lun->maxlba + 1)); 8928 ctl_done((union ctl_io *)ctsio); 8929 return (CTL_RETVAL_COMPLETE); 8930 } 8931 8932 /* 8933 * According to SBC-3, a transfer length of 0 is not an error. 8934 */ 8935 if (num_blocks == 0) { 8936 ctl_set_success(ctsio); 8937 ctl_done((union ctl_io *)ctsio); 8938 return (CTL_RETVAL_COMPLETE); 8939 } 8940 8941 lbalen = (struct ctl_lba_len_flags *) 8942 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8943 lbalen->lba = lba; 8944 lbalen->len = num_blocks; 8945 if (bytchk) { 8946 lbalen->flags = CTL_LLF_COMPARE | flags; 8947 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8948 } else { 8949 lbalen->flags = CTL_LLF_VERIFY | flags; 8950 ctsio->kern_total_len = 0; 8951 } 8952 ctsio->kern_rel_offset = 0; 8953 8954 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 8955 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8956 return (retval); 8957} 8958 8959int 8960ctl_report_luns(struct ctl_scsiio *ctsio) 8961{ 8962 struct ctl_softc *softc = CTL_SOFTC(ctsio); 8963 struct ctl_port *port = CTL_PORT(ctsio); 8964 struct ctl_lun *lun, *request_lun = CTL_LUN(ctsio); 8965 struct scsi_report_luns *cdb; 8966 struct scsi_report_luns_data *lun_data; 8967 int num_filled, num_luns, num_port_luns, retval; 8968 uint32_t alloc_len, lun_datalen; 8969 uint32_t initidx, targ_lun_id, lun_id; 8970 8971 retval = CTL_RETVAL_COMPLETE; 8972 cdb = (struct scsi_report_luns *)ctsio->cdb; 8973 8974 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 8975 8976 num_luns = 0; 8977 num_port_luns = port->lun_map ? port->lun_map_size : ctl_max_luns; 8978 mtx_lock(&softc->ctl_lock); 8979 for (targ_lun_id = 0; targ_lun_id < num_port_luns; targ_lun_id++) { 8980 if (ctl_lun_map_from_port(port, targ_lun_id) != UINT32_MAX) 8981 num_luns++; 8982 } 8983 mtx_unlock(&softc->ctl_lock); 8984 8985 switch (cdb->select_report) { 8986 case RPL_REPORT_DEFAULT: 8987 case RPL_REPORT_ALL: 8988 case RPL_REPORT_NONSUBSID: 8989 break; 8990 case RPL_REPORT_WELLKNOWN: 8991 case RPL_REPORT_ADMIN: 8992 case RPL_REPORT_CONGLOM: 8993 num_luns = 0; 8994 break; 8995 default: 8996 ctl_set_invalid_field(ctsio, 8997 /*sks_valid*/ 1, 8998 /*command*/ 1, 8999 /*field*/ 2, 9000 /*bit_valid*/ 0, 9001 /*bit*/ 0); 9002 ctl_done((union ctl_io *)ctsio); 9003 return (retval); 9004 break; /* NOTREACHED */ 9005 } 9006 9007 alloc_len = scsi_4btoul(cdb->length); 9008 /* 9009 * The initiator has to allocate at least 16 bytes for this request, 9010 * so he can at least get the header and the first LUN. Otherwise 9011 * we reject the request (per SPC-3 rev 14, section 6.21). 9012 */ 9013 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9014 sizeof(struct scsi_report_luns_lundata))) { 9015 ctl_set_invalid_field(ctsio, 9016 /*sks_valid*/ 1, 9017 /*command*/ 1, 9018 /*field*/ 6, 9019 /*bit_valid*/ 0, 9020 /*bit*/ 0); 9021 ctl_done((union ctl_io *)ctsio); 9022 return (retval); 9023 } 9024 9025 lun_datalen = sizeof(*lun_data) + 9026 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9027 9028 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9029 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9030 ctsio->kern_sg_entries = 0; 9031 9032 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9033 9034 mtx_lock(&softc->ctl_lock); 9035 for (targ_lun_id = 0, num_filled = 0; 9036 targ_lun_id < num_port_luns && num_filled < num_luns; 9037 targ_lun_id++) { 9038 lun_id = ctl_lun_map_from_port(port, targ_lun_id); 9039 if (lun_id == UINT32_MAX) 9040 continue; 9041 lun = softc->ctl_luns[lun_id]; 9042 if (lun == NULL) 9043 continue; 9044 9045 be64enc(lun_data->luns[num_filled++].lundata, 9046 ctl_encode_lun(targ_lun_id)); 9047 9048 /* 9049 * According to SPC-3, rev 14 section 6.21: 9050 * 9051 * "The execution of a REPORT LUNS command to any valid and 9052 * installed logical unit shall clear the REPORTED LUNS DATA 9053 * HAS CHANGED unit attention condition for all logical 9054 * units of that target with respect to the requesting 9055 * initiator. A valid and installed logical unit is one 9056 * having a PERIPHERAL QUALIFIER of 000b in the standard 9057 * INQUIRY data (see 6.4.2)." 9058 * 9059 * If request_lun is NULL, the LUN this report luns command 9060 * was issued to is either disabled or doesn't exist. In that 9061 * case, we shouldn't clear any pending lun change unit 9062 * attention. 9063 */ 9064 if (request_lun != NULL) { 9065 mtx_lock(&lun->lun_lock); 9066 ctl_clr_ua(lun, initidx, CTL_UA_LUN_CHANGE); 9067 mtx_unlock(&lun->lun_lock); 9068 } 9069 } 9070 mtx_unlock(&softc->ctl_lock); 9071 9072 /* 9073 * It's quite possible that we've returned fewer LUNs than we allocated 9074 * space for. Trim it. 9075 */ 9076 lun_datalen = sizeof(*lun_data) + 9077 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9078 ctsio->kern_rel_offset = 0; 9079 ctsio->kern_sg_entries = 0; 9080 ctsio->kern_data_len = min(lun_datalen, alloc_len); 9081 ctsio->kern_total_len = ctsio->kern_data_len; 9082 9083 /* 9084 * We set this to the actual data length, regardless of how much 9085 * space we actually have to return results. If the user looks at 9086 * this value, he'll know whether or not he allocated enough space 9087 * and reissue the command if necessary. We don't support well 9088 * known logical units, so if the user asks for that, return none. 9089 */ 9090 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9091 9092 /* 9093 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9094 * this request. 9095 */ 9096 ctl_set_success(ctsio); 9097 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9098 ctsio->be_move_done = ctl_config_move_done; 9099 ctl_datamove((union ctl_io *)ctsio); 9100 return (retval); 9101} 9102 9103int 9104ctl_request_sense(struct ctl_scsiio *ctsio) 9105{ 9106 struct ctl_softc *softc = CTL_SOFTC(ctsio); 9107 struct ctl_lun *lun = CTL_LUN(ctsio); 9108 struct scsi_request_sense *cdb; 9109 struct scsi_sense_data *sense_ptr, *ps; 9110 uint32_t initidx; 9111 int have_error; 9112 u_int sense_len = SSD_FULL_SIZE; 9113 scsi_sense_data_type sense_format; 9114 ctl_ua_type ua_type; 9115 uint8_t asc = 0, ascq = 0; 9116 9117 cdb = (struct scsi_request_sense *)ctsio->cdb; 9118 9119 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9120 9121 /* 9122 * Determine which sense format the user wants. 9123 */ 9124 if (cdb->byte2 & SRS_DESC) 9125 sense_format = SSD_TYPE_DESC; 9126 else 9127 sense_format = SSD_TYPE_FIXED; 9128 9129 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9130 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9131 ctsio->kern_sg_entries = 0; 9132 ctsio->kern_rel_offset = 0; 9133 9134 /* 9135 * struct scsi_sense_data, which is currently set to 256 bytes, is 9136 * larger than the largest allowed value for the length field in the 9137 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9138 */ 9139 ctsio->kern_data_len = cdb->length; 9140 ctsio->kern_total_len = cdb->length; 9141 9142 /* 9143 * If we don't have a LUN, we don't have any pending sense. 9144 */ 9145 if (lun == NULL || 9146 ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 9147 softc->ha_link < CTL_HA_LINK_UNKNOWN)) { 9148 /* "Logical unit not supported" */ 9149 ctl_set_sense_data(sense_ptr, &sense_len, NULL, sense_format, 9150 /*current_error*/ 1, 9151 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 9152 /*asc*/ 0x25, 9153 /*ascq*/ 0x00, 9154 SSD_ELEM_NONE); 9155 goto send; 9156 } 9157 9158 have_error = 0; 9159 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9160 /* 9161 * Check for pending sense, and then for pending unit attentions. 9162 * Pending sense gets returned first, then pending unit attentions. 9163 */ 9164 mtx_lock(&lun->lun_lock); 9165 ps = lun->pending_sense[initidx / CTL_MAX_INIT_PER_PORT]; 9166 if (ps != NULL) 9167 ps += initidx % CTL_MAX_INIT_PER_PORT; 9168 if (ps != NULL && ps->error_code != 0) { 9169 scsi_sense_data_type stored_format; 9170 9171 /* 9172 * Check to see which sense format was used for the stored 9173 * sense data. 9174 */ 9175 stored_format = scsi_sense_type(ps); 9176 9177 /* 9178 * If the user requested a different sense format than the 9179 * one we stored, then we need to convert it to the other 9180 * format. If we're going from descriptor to fixed format 9181 * sense data, we may lose things in translation, depending 9182 * on what options were used. 9183 * 9184 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9185 * for some reason we'll just copy it out as-is. 9186 */ 9187 if ((stored_format == SSD_TYPE_FIXED) 9188 && (sense_format == SSD_TYPE_DESC)) 9189 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9190 ps, (struct scsi_sense_data_desc *)sense_ptr); 9191 else if ((stored_format == SSD_TYPE_DESC) 9192 && (sense_format == SSD_TYPE_FIXED)) 9193 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9194 ps, (struct scsi_sense_data_fixed *)sense_ptr); 9195 else 9196 memcpy(sense_ptr, ps, sizeof(*sense_ptr)); 9197 9198 ps->error_code = 0; 9199 have_error = 1; 9200 } else { 9201 ua_type = ctl_build_ua(lun, initidx, sense_ptr, &sense_len, 9202 sense_format); 9203 if (ua_type != CTL_UA_NONE) 9204 have_error = 1; 9205 } 9206 if (have_error == 0) { 9207 /* 9208 * Report informational exception if have one and allowed. 9209 */ 9210 if (lun->MODE_IE.mrie != SIEP_MRIE_NO) { 9211 asc = lun->ie_asc; 9212 ascq = lun->ie_ascq; 9213 } 9214 ctl_set_sense_data(sense_ptr, &sense_len, lun, sense_format, 9215 /*current_error*/ 1, 9216 /*sense_key*/ SSD_KEY_NO_SENSE, 9217 /*asc*/ asc, 9218 /*ascq*/ ascq, 9219 SSD_ELEM_NONE); 9220 } 9221 mtx_unlock(&lun->lun_lock); 9222 9223send: 9224 /* 9225 * We report the SCSI status as OK, since the status of the command 9226 * itself is OK. We're reporting sense as parameter data. 9227 */ 9228 ctl_set_success(ctsio); 9229 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9230 ctsio->be_move_done = ctl_config_move_done; 9231 ctl_datamove((union ctl_io *)ctsio); 9232 return (CTL_RETVAL_COMPLETE); 9233} 9234 9235int 9236ctl_tur(struct ctl_scsiio *ctsio) 9237{ 9238 9239 CTL_DEBUG_PRINT(("ctl_tur\n")); 9240 9241 ctl_set_success(ctsio); 9242 ctl_done((union ctl_io *)ctsio); 9243 9244 return (CTL_RETVAL_COMPLETE); 9245} 9246 9247/* 9248 * SCSI VPD page 0x00, the Supported VPD Pages page. 9249 */ 9250static int 9251ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9252{ 9253 struct ctl_lun *lun = CTL_LUN(ctsio); 9254 struct scsi_vpd_supported_pages *pages; 9255 int sup_page_size; 9256 int p; 9257 9258 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9259 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9260 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9261 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9262 ctsio->kern_rel_offset = 0; 9263 ctsio->kern_sg_entries = 0; 9264 ctsio->kern_data_len = min(sup_page_size, alloc_len); 9265 ctsio->kern_total_len = ctsio->kern_data_len; 9266 9267 /* 9268 * The control device is always connected. The disk device, on the 9269 * other hand, may not be online all the time. Need to change this 9270 * to figure out whether the disk device is actually online or not. 9271 */ 9272 if (lun != NULL) 9273 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9274 lun->be_lun->lun_type; 9275 else 9276 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9277 9278 p = 0; 9279 /* Supported VPD pages */ 9280 pages->page_list[p++] = SVPD_SUPPORTED_PAGES; 9281 /* Serial Number */ 9282 pages->page_list[p++] = SVPD_UNIT_SERIAL_NUMBER; 9283 /* Device Identification */ 9284 pages->page_list[p++] = SVPD_DEVICE_ID; 9285 /* Extended INQUIRY Data */ 9286 pages->page_list[p++] = SVPD_EXTENDED_INQUIRY_DATA; 9287 /* Mode Page Policy */ 9288 pages->page_list[p++] = SVPD_MODE_PAGE_POLICY; 9289 /* SCSI Ports */ 9290 pages->page_list[p++] = SVPD_SCSI_PORTS; 9291 /* Third-party Copy */ 9292 pages->page_list[p++] = SVPD_SCSI_TPC; 9293 if (lun != NULL && lun->be_lun->lun_type == T_DIRECT) { 9294 /* Block limits */ 9295 pages->page_list[p++] = SVPD_BLOCK_LIMITS; 9296 /* Block Device Characteristics */ 9297 pages->page_list[p++] = SVPD_BDC; 9298 /* Logical Block Provisioning */ 9299 pages->page_list[p++] = SVPD_LBP; 9300 } 9301 pages->length = p; 9302 9303 ctl_set_success(ctsio); 9304 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9305 ctsio->be_move_done = ctl_config_move_done; 9306 ctl_datamove((union ctl_io *)ctsio); 9307 return (CTL_RETVAL_COMPLETE); 9308} 9309 9310/* 9311 * SCSI VPD page 0x80, the Unit Serial Number page. 9312 */ 9313static int 9314ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9315{ 9316 struct ctl_lun *lun = CTL_LUN(ctsio); 9317 struct scsi_vpd_unit_serial_number *sn_ptr; 9318 int data_len; 9319 9320 data_len = 4 + CTL_SN_LEN; 9321 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9322 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9323 ctsio->kern_rel_offset = 0; 9324 ctsio->kern_sg_entries = 0; 9325 ctsio->kern_data_len = min(data_len, alloc_len); 9326 ctsio->kern_total_len = ctsio->kern_data_len; 9327 9328 /* 9329 * The control device is always connected. The disk device, on the 9330 * other hand, may not be online all the time. Need to change this 9331 * to figure out whether the disk device is actually online or not. 9332 */ 9333 if (lun != NULL) 9334 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9335 lun->be_lun->lun_type; 9336 else 9337 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9338 9339 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9340 sn_ptr->length = CTL_SN_LEN; 9341 /* 9342 * If we don't have a LUN, we just leave the serial number as 9343 * all spaces. 9344 */ 9345 if (lun != NULL) { 9346 strncpy((char *)sn_ptr->serial_num, 9347 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9348 } else 9349 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9350 9351 ctl_set_success(ctsio); 9352 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9353 ctsio->be_move_done = ctl_config_move_done; 9354 ctl_datamove((union ctl_io *)ctsio); 9355 return (CTL_RETVAL_COMPLETE); 9356} 9357 9358 9359/* 9360 * SCSI VPD page 0x86, the Extended INQUIRY Data page. 9361 */ 9362static int 9363ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9364{ 9365 struct ctl_lun *lun = CTL_LUN(ctsio); 9366 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9367 int data_len; 9368 9369 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9370 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9371 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9372 ctsio->kern_sg_entries = 0; 9373 ctsio->kern_rel_offset = 0; 9374 ctsio->kern_data_len = min(data_len, alloc_len); 9375 ctsio->kern_total_len = ctsio->kern_data_len; 9376 9377 /* 9378 * The control device is always connected. The disk device, on the 9379 * other hand, may not be online all the time. 9380 */ 9381 if (lun != NULL) 9382 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9383 lun->be_lun->lun_type; 9384 else 9385 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9386 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9387 scsi_ulto2b(data_len - 4, eid_ptr->page_length); 9388 /* 9389 * We support head of queue, ordered and simple tags. 9390 */ 9391 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9392 /* 9393 * Volatile cache supported. 9394 */ 9395 eid_ptr->flags3 = SVPD_EID_V_SUP; 9396 9397 /* 9398 * This means that we clear the REPORTED LUNS DATA HAS CHANGED unit 9399 * attention for a particular IT nexus on all LUNs once we report 9400 * it to that nexus once. This bit is required as of SPC-4. 9401 */ 9402 eid_ptr->flags4 = SVPD_EID_LUICLR; 9403 9404 /* 9405 * We support revert to defaults (RTD) bit in MODE SELECT. 9406 */ 9407 eid_ptr->flags5 = SVPD_EID_RTD_SUP; 9408 9409 /* 9410 * XXX KDM in order to correctly answer this, we would need 9411 * information from the SIM to determine how much sense data it 9412 * can send. So this would really be a path inquiry field, most 9413 * likely. This can be set to a maximum of 252 according to SPC-4, 9414 * but the hardware may or may not be able to support that much. 9415 * 0 just means that the maximum sense data length is not reported. 9416 */ 9417 eid_ptr->max_sense_length = 0; 9418 9419 ctl_set_success(ctsio); 9420 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9421 ctsio->be_move_done = ctl_config_move_done; 9422 ctl_datamove((union ctl_io *)ctsio); 9423 return (CTL_RETVAL_COMPLETE); 9424} 9425 9426static int 9427ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9428{ 9429 struct ctl_lun *lun = CTL_LUN(ctsio); 9430 struct scsi_vpd_mode_page_policy *mpp_ptr; 9431 int data_len; 9432 9433 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9434 sizeof(struct scsi_vpd_mode_page_policy_descr); 9435 9436 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9437 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9438 ctsio->kern_rel_offset = 0; 9439 ctsio->kern_sg_entries = 0; 9440 ctsio->kern_data_len = min(data_len, alloc_len); 9441 ctsio->kern_total_len = ctsio->kern_data_len; 9442 9443 /* 9444 * The control device is always connected. The disk device, on the 9445 * other hand, may not be online all the time. 9446 */ 9447 if (lun != NULL) 9448 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9449 lun->be_lun->lun_type; 9450 else 9451 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9452 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9453 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9454 mpp_ptr->descr[0].page_code = 0x3f; 9455 mpp_ptr->descr[0].subpage_code = 0xff; 9456 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9457 9458 ctl_set_success(ctsio); 9459 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9460 ctsio->be_move_done = ctl_config_move_done; 9461 ctl_datamove((union ctl_io *)ctsio); 9462 return (CTL_RETVAL_COMPLETE); 9463} 9464 9465/* 9466 * SCSI VPD page 0x83, the Device Identification page. 9467 */ 9468static int 9469ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9470{ 9471 struct ctl_softc *softc = CTL_SOFTC(ctsio); 9472 struct ctl_port *port = CTL_PORT(ctsio); 9473 struct ctl_lun *lun = CTL_LUN(ctsio); 9474 struct scsi_vpd_device_id *devid_ptr; 9475 struct scsi_vpd_id_descriptor *desc; 9476 int data_len, g; 9477 uint8_t proto; 9478 9479 data_len = sizeof(struct scsi_vpd_device_id) + 9480 sizeof(struct scsi_vpd_id_descriptor) + 9481 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9482 sizeof(struct scsi_vpd_id_descriptor) + 9483 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9484 if (lun && lun->lun_devid) 9485 data_len += lun->lun_devid->len; 9486 if (port && port->port_devid) 9487 data_len += port->port_devid->len; 9488 if (port && port->target_devid) 9489 data_len += port->target_devid->len; 9490 9491 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9492 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9493 ctsio->kern_sg_entries = 0; 9494 ctsio->kern_rel_offset = 0; 9495 ctsio->kern_sg_entries = 0; 9496 ctsio->kern_data_len = min(data_len, alloc_len); 9497 ctsio->kern_total_len = ctsio->kern_data_len; 9498 9499 /* 9500 * The control device is always connected. The disk device, on the 9501 * other hand, may not be online all the time. 9502 */ 9503 if (lun != NULL) 9504 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9505 lun->be_lun->lun_type; 9506 else 9507 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9508 devid_ptr->page_code = SVPD_DEVICE_ID; 9509 scsi_ulto2b(data_len - 4, devid_ptr->length); 9510 9511 if (port && port->port_type == CTL_PORT_FC) 9512 proto = SCSI_PROTO_FC << 4; 9513 else if (port && port->port_type == CTL_PORT_SAS) 9514 proto = SCSI_PROTO_SAS << 4; 9515 else if (port && port->port_type == CTL_PORT_ISCSI) 9516 proto = SCSI_PROTO_ISCSI << 4; 9517 else 9518 proto = SCSI_PROTO_SPI << 4; 9519 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9520 9521 /* 9522 * We're using a LUN association here. i.e., this device ID is a 9523 * per-LUN identifier. 9524 */ 9525 if (lun && lun->lun_devid) { 9526 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9527 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9528 lun->lun_devid->len); 9529 } 9530 9531 /* 9532 * This is for the WWPN which is a port association. 9533 */ 9534 if (port && port->port_devid) { 9535 memcpy(desc, port->port_devid->data, port->port_devid->len); 9536 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9537 port->port_devid->len); 9538 } 9539 9540 /* 9541 * This is for the Relative Target Port(type 4h) identifier 9542 */ 9543 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9544 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9545 SVPD_ID_TYPE_RELTARG; 9546 desc->length = 4; 9547 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9548 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9549 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9550 9551 /* 9552 * This is for the Target Port Group(type 5h) identifier 9553 */ 9554 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9555 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9556 SVPD_ID_TYPE_TPORTGRP; 9557 desc->length = 4; 9558 if (softc->is_single || 9559 (port && port->status & CTL_PORT_STATUS_HA_SHARED)) 9560 g = 1; 9561 else 9562 g = 2 + ctsio->io_hdr.nexus.targ_port / softc->port_cnt; 9563 scsi_ulto2b(g, &desc->identifier[2]); 9564 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9565 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9566 9567 /* 9568 * This is for the Target identifier 9569 */ 9570 if (port && port->target_devid) { 9571 memcpy(desc, port->target_devid->data, port->target_devid->len); 9572 } 9573 9574 ctl_set_success(ctsio); 9575 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9576 ctsio->be_move_done = ctl_config_move_done; 9577 ctl_datamove((union ctl_io *)ctsio); 9578 return (CTL_RETVAL_COMPLETE); 9579} 9580 9581static int 9582ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9583{ 9584 struct ctl_softc *softc = CTL_SOFTC(ctsio); 9585 struct ctl_lun *lun = CTL_LUN(ctsio); 9586 struct scsi_vpd_scsi_ports *sp; 9587 struct scsi_vpd_port_designation *pd; 9588 struct scsi_vpd_port_designation_cont *pdc; 9589 struct ctl_port *port; 9590 int data_len, num_target_ports, iid_len, id_len; 9591 9592 num_target_ports = 0; 9593 iid_len = 0; 9594 id_len = 0; 9595 mtx_lock(&softc->ctl_lock); 9596 STAILQ_FOREACH(port, &softc->port_list, links) { 9597 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9598 continue; 9599 if (lun != NULL && 9600 ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 9601 continue; 9602 num_target_ports++; 9603 if (port->init_devid) 9604 iid_len += port->init_devid->len; 9605 if (port->port_devid) 9606 id_len += port->port_devid->len; 9607 } 9608 mtx_unlock(&softc->ctl_lock); 9609 9610 data_len = sizeof(struct scsi_vpd_scsi_ports) + 9611 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 9612 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 9613 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9614 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 9615 ctsio->kern_sg_entries = 0; 9616 ctsio->kern_rel_offset = 0; 9617 ctsio->kern_sg_entries = 0; 9618 ctsio->kern_data_len = min(data_len, alloc_len); 9619 ctsio->kern_total_len = ctsio->kern_data_len; 9620 9621 /* 9622 * The control device is always connected. The disk device, on the 9623 * other hand, may not be online all the time. Need to change this 9624 * to figure out whether the disk device is actually online or not. 9625 */ 9626 if (lun != NULL) 9627 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 9628 lun->be_lun->lun_type; 9629 else 9630 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9631 9632 sp->page_code = SVPD_SCSI_PORTS; 9633 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 9634 sp->page_length); 9635 pd = &sp->design[0]; 9636 9637 mtx_lock(&softc->ctl_lock); 9638 STAILQ_FOREACH(port, &softc->port_list, links) { 9639 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9640 continue; 9641 if (lun != NULL && 9642 ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 9643 continue; 9644 scsi_ulto2b(port->targ_port, pd->relative_port_id); 9645 if (port->init_devid) { 9646 iid_len = port->init_devid->len; 9647 memcpy(pd->initiator_transportid, 9648 port->init_devid->data, port->init_devid->len); 9649 } else 9650 iid_len = 0; 9651 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 9652 pdc = (struct scsi_vpd_port_designation_cont *) 9653 (&pd->initiator_transportid[iid_len]); 9654 if (port->port_devid) { 9655 id_len = port->port_devid->len; 9656 memcpy(pdc->target_port_descriptors, 9657 port->port_devid->data, port->port_devid->len); 9658 } else 9659 id_len = 0; 9660 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 9661 pd = (struct scsi_vpd_port_designation *) 9662 ((uint8_t *)pdc->target_port_descriptors + id_len); 9663 } 9664 mtx_unlock(&softc->ctl_lock); 9665 9666 ctl_set_success(ctsio); 9667 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9668 ctsio->be_move_done = ctl_config_move_done; 9669 ctl_datamove((union ctl_io *)ctsio); 9670 return (CTL_RETVAL_COMPLETE); 9671} 9672 9673static int 9674ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 9675{ 9676 struct ctl_lun *lun = CTL_LUN(ctsio); 9677 struct scsi_vpd_block_limits *bl_ptr; 9678 uint64_t ival; 9679 9680 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 9681 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 9682 ctsio->kern_sg_entries = 0; 9683 ctsio->kern_rel_offset = 0; 9684 ctsio->kern_sg_entries = 0; 9685 ctsio->kern_data_len = min(sizeof(*bl_ptr), alloc_len); 9686 ctsio->kern_total_len = ctsio->kern_data_len; 9687 9688 /* 9689 * The control device is always connected. The disk device, on the 9690 * other hand, may not be online all the time. Need to change this 9691 * to figure out whether the disk device is actually online or not. 9692 */ 9693 if (lun != NULL) 9694 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9695 lun->be_lun->lun_type; 9696 else 9697 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9698 9699 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 9700 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 9701 bl_ptr->max_cmp_write_len = 0xff; 9702 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 9703 if (lun != NULL) { 9704 scsi_ulto4b(lun->be_lun->opttxferlen, bl_ptr->opt_txfer_len); 9705 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9706 ival = 0xffffffff; 9707 ctl_get_opt_number(&lun->be_lun->options, 9708 "unmap_max_lba", &ival); 9709 scsi_ulto4b(ival, bl_ptr->max_unmap_lba_cnt); 9710 ival = 0xffffffff; 9711 ctl_get_opt_number(&lun->be_lun->options, 9712 "unmap_max_descr", &ival); 9713 scsi_ulto4b(ival, bl_ptr->max_unmap_blk_cnt); 9714 if (lun->be_lun->ublockexp != 0) { 9715 scsi_ulto4b((1 << lun->be_lun->ublockexp), 9716 bl_ptr->opt_unmap_grain); 9717 scsi_ulto4b(0x80000000 | lun->be_lun->ublockoff, 9718 bl_ptr->unmap_grain_align); 9719 } 9720 } 9721 scsi_ulto4b(lun->be_lun->atomicblock, 9722 bl_ptr->max_atomic_transfer_length); 9723 scsi_ulto4b(0, bl_ptr->atomic_alignment); 9724 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 9725 scsi_ulto4b(0, bl_ptr->max_atomic_transfer_length_with_atomic_boundary); 9726 scsi_ulto4b(0, bl_ptr->max_atomic_boundary_size); 9727 ival = UINT64_MAX; 9728 ctl_get_opt_number(&lun->be_lun->options, "write_same_max_lba", &ival); 9729 scsi_u64to8b(ival, bl_ptr->max_write_same_length); 9730 } 9731 9732 ctl_set_success(ctsio); 9733 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9734 ctsio->be_move_done = ctl_config_move_done; 9735 ctl_datamove((union ctl_io *)ctsio); 9736 return (CTL_RETVAL_COMPLETE); 9737} 9738 9739static int 9740ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 9741{ 9742 struct ctl_lun *lun = CTL_LUN(ctsio); 9743 struct scsi_vpd_block_device_characteristics *bdc_ptr; 9744 const char *value; 9745 u_int i; 9746 9747 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 9748 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 9749 ctsio->kern_sg_entries = 0; 9750 ctsio->kern_rel_offset = 0; 9751 ctsio->kern_data_len = min(sizeof(*bdc_ptr), alloc_len); 9752 ctsio->kern_total_len = ctsio->kern_data_len; 9753 9754 /* 9755 * The control device is always connected. The disk device, on the 9756 * other hand, may not be online all the time. Need to change this 9757 * to figure out whether the disk device is actually online or not. 9758 */ 9759 if (lun != NULL) 9760 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9761 lun->be_lun->lun_type; 9762 else 9763 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9764 bdc_ptr->page_code = SVPD_BDC; 9765 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 9766 if (lun != NULL && 9767 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 9768 i = strtol(value, NULL, 0); 9769 else 9770 i = CTL_DEFAULT_ROTATION_RATE; 9771 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 9772 if (lun != NULL && 9773 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 9774 i = strtol(value, NULL, 0); 9775 else 9776 i = 0; 9777 bdc_ptr->wab_wac_ff = (i & 0x0f); 9778 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 9779 9780 ctl_set_success(ctsio); 9781 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9782 ctsio->be_move_done = ctl_config_move_done; 9783 ctl_datamove((union ctl_io *)ctsio); 9784 return (CTL_RETVAL_COMPLETE); 9785} 9786 9787static int 9788ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 9789{ 9790 struct ctl_lun *lun = CTL_LUN(ctsio); 9791 struct scsi_vpd_logical_block_prov *lbp_ptr; 9792 const char *value; 9793 9794 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 9795 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 9796 ctsio->kern_sg_entries = 0; 9797 ctsio->kern_rel_offset = 0; 9798 ctsio->kern_data_len = min(sizeof(*lbp_ptr), alloc_len); 9799 ctsio->kern_total_len = ctsio->kern_data_len; 9800 9801 /* 9802 * The control device is always connected. The disk device, on the 9803 * other hand, may not be online all the time. Need to change this 9804 * to figure out whether the disk device is actually online or not. 9805 */ 9806 if (lun != NULL) 9807 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9808 lun->be_lun->lun_type; 9809 else 9810 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9811 9812 lbp_ptr->page_code = SVPD_LBP; 9813 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 9814 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 9815 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9816 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 9817 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 9818 value = ctl_get_opt(&lun->be_lun->options, "provisioning_type"); 9819 if (value != NULL) { 9820 if (strcmp(value, "resource") == 0) 9821 lbp_ptr->prov_type = SVPD_LBP_RESOURCE; 9822 else if (strcmp(value, "thin") == 0) 9823 lbp_ptr->prov_type = SVPD_LBP_THIN; 9824 } else 9825 lbp_ptr->prov_type = SVPD_LBP_THIN; 9826 } 9827 9828 ctl_set_success(ctsio); 9829 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9830 ctsio->be_move_done = ctl_config_move_done; 9831 ctl_datamove((union ctl_io *)ctsio); 9832 return (CTL_RETVAL_COMPLETE); 9833} 9834 9835/* 9836 * INQUIRY with the EVPD bit set. 9837 */ 9838static int 9839ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 9840{ 9841 struct ctl_lun *lun = CTL_LUN(ctsio); 9842 struct scsi_inquiry *cdb; 9843 int alloc_len, retval; 9844 9845 cdb = (struct scsi_inquiry *)ctsio->cdb; 9846 alloc_len = scsi_2btoul(cdb->length); 9847 9848 switch (cdb->page_code) { 9849 case SVPD_SUPPORTED_PAGES: 9850 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 9851 break; 9852 case SVPD_UNIT_SERIAL_NUMBER: 9853 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 9854 break; 9855 case SVPD_DEVICE_ID: 9856 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 9857 break; 9858 case SVPD_EXTENDED_INQUIRY_DATA: 9859 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 9860 break; 9861 case SVPD_MODE_PAGE_POLICY: 9862 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 9863 break; 9864 case SVPD_SCSI_PORTS: 9865 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 9866 break; 9867 case SVPD_SCSI_TPC: 9868 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 9869 break; 9870 case SVPD_BLOCK_LIMITS: 9871 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 9872 goto err; 9873 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 9874 break; 9875 case SVPD_BDC: 9876 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 9877 goto err; 9878 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 9879 break; 9880 case SVPD_LBP: 9881 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 9882 goto err; 9883 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 9884 break; 9885 default: 9886err: 9887 ctl_set_invalid_field(ctsio, 9888 /*sks_valid*/ 1, 9889 /*command*/ 1, 9890 /*field*/ 2, 9891 /*bit_valid*/ 0, 9892 /*bit*/ 0); 9893 ctl_done((union ctl_io *)ctsio); 9894 retval = CTL_RETVAL_COMPLETE; 9895 break; 9896 } 9897 9898 return (retval); 9899} 9900 9901/* 9902 * Standard INQUIRY data. 9903 */ 9904static int 9905ctl_inquiry_std(struct ctl_scsiio *ctsio) 9906{ 9907 struct ctl_softc *softc = CTL_SOFTC(ctsio); 9908 struct ctl_port *port = CTL_PORT(ctsio); 9909 struct ctl_lun *lun = CTL_LUN(ctsio); 9910 struct scsi_inquiry_data *inq_ptr; 9911 struct scsi_inquiry *cdb; 9912 char *val; 9913 uint32_t alloc_len, data_len; 9914 ctl_port_type port_type; 9915 9916 port_type = port->port_type; 9917 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 9918 port_type = CTL_PORT_SCSI; 9919 9920 cdb = (struct scsi_inquiry *)ctsio->cdb; 9921 alloc_len = scsi_2btoul(cdb->length); 9922 9923 /* 9924 * We malloc the full inquiry data size here and fill it 9925 * in. If the user only asks for less, we'll give him 9926 * that much. 9927 */ 9928 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 9929 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9930 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 9931 ctsio->kern_sg_entries = 0; 9932 ctsio->kern_rel_offset = 0; 9933 ctsio->kern_data_len = min(data_len, alloc_len); 9934 ctsio->kern_total_len = ctsio->kern_data_len; 9935 9936 if (lun != NULL) { 9937 if ((lun->flags & CTL_LUN_PRIMARY_SC) || 9938 softc->ha_link >= CTL_HA_LINK_UNKNOWN) { 9939 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9940 lun->be_lun->lun_type; 9941 } else { 9942 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | 9943 lun->be_lun->lun_type; 9944 } 9945 if (lun->flags & CTL_LUN_REMOVABLE) 9946 inq_ptr->dev_qual2 |= SID_RMB; 9947 } else 9948 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 9949 9950 /* RMB in byte 2 is 0 */ 9951 inq_ptr->version = SCSI_REV_SPC5; 9952 9953 /* 9954 * According to SAM-3, even if a device only supports a single 9955 * level of LUN addressing, it should still set the HISUP bit: 9956 * 9957 * 4.9.1 Logical unit numbers overview 9958 * 9959 * All logical unit number formats described in this standard are 9960 * hierarchical in structure even when only a single level in that 9961 * hierarchy is used. The HISUP bit shall be set to one in the 9962 * standard INQUIRY data (see SPC-2) when any logical unit number 9963 * format described in this standard is used. Non-hierarchical 9964 * formats are outside the scope of this standard. 9965 * 9966 * Therefore we set the HiSup bit here. 9967 * 9968 * The response format is 2, per SPC-3. 9969 */ 9970 inq_ptr->response_format = SID_HiSup | 2; 9971 9972 inq_ptr->additional_length = data_len - 9973 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 9974 CTL_DEBUG_PRINT(("additional_length = %d\n", 9975 inq_ptr->additional_length)); 9976 9977 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 9978 if (port_type == CTL_PORT_SCSI) 9979 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 9980 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 9981 inq_ptr->flags = SID_CmdQue; 9982 if (port_type == CTL_PORT_SCSI) 9983 inq_ptr->flags |= SID_WBus16 | SID_Sync; 9984 9985 /* 9986 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 9987 * We have 8 bytes for the vendor name, and 16 bytes for the device 9988 * name and 4 bytes for the revision. 9989 */ 9990 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 9991 "vendor")) == NULL) { 9992 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 9993 } else { 9994 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 9995 strncpy(inq_ptr->vendor, val, 9996 min(sizeof(inq_ptr->vendor), strlen(val))); 9997 } 9998 if (lun == NULL) { 9999 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10000 sizeof(inq_ptr->product)); 10001 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10002 switch (lun->be_lun->lun_type) { 10003 case T_DIRECT: 10004 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10005 sizeof(inq_ptr->product)); 10006 break; 10007 case T_PROCESSOR: 10008 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10009 sizeof(inq_ptr->product)); 10010 break; 10011 case T_CDROM: 10012 strncpy(inq_ptr->product, CTL_CDROM_PRODUCT, 10013 sizeof(inq_ptr->product)); 10014 break; 10015 default: 10016 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10017 sizeof(inq_ptr->product)); 10018 break; 10019 } 10020 } else { 10021 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10022 strncpy(inq_ptr->product, val, 10023 min(sizeof(inq_ptr->product), strlen(val))); 10024 } 10025 10026 /* 10027 * XXX make this a macro somewhere so it automatically gets 10028 * incremented when we make changes. 10029 */ 10030 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10031 "revision")) == NULL) { 10032 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10033 } else { 10034 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10035 strncpy(inq_ptr->revision, val, 10036 min(sizeof(inq_ptr->revision), strlen(val))); 10037 } 10038 10039 /* 10040 * For parallel SCSI, we support double transition and single 10041 * transition clocking. We also support QAS (Quick Arbitration 10042 * and Selection) and Information Unit transfers on both the 10043 * control and array devices. 10044 */ 10045 if (port_type == CTL_PORT_SCSI) 10046 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10047 SID_SPI_IUS; 10048 10049 /* SAM-6 (no version claimed) */ 10050 scsi_ulto2b(0x00C0, inq_ptr->version1); 10051 /* SPC-5 (no version claimed) */ 10052 scsi_ulto2b(0x05C0, inq_ptr->version2); 10053 if (port_type == CTL_PORT_FC) { 10054 /* FCP-2 ANSI INCITS.350:2003 */ 10055 scsi_ulto2b(0x0917, inq_ptr->version3); 10056 } else if (port_type == CTL_PORT_SCSI) { 10057 /* SPI-4 ANSI INCITS.362:200x */ 10058 scsi_ulto2b(0x0B56, inq_ptr->version3); 10059 } else if (port_type == CTL_PORT_ISCSI) { 10060 /* iSCSI (no version claimed) */ 10061 scsi_ulto2b(0x0960, inq_ptr->version3); 10062 } else if (port_type == CTL_PORT_SAS) { 10063 /* SAS (no version claimed) */ 10064 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10065 } else if (port_type == CTL_PORT_UMASS) { 10066 /* USB Mass Storage Class Bulk-Only Transport, Revision 1.0 */ 10067 scsi_ulto2b(0x1730, inq_ptr->version3); 10068 } 10069 10070 if (lun == NULL) { 10071 /* SBC-4 (no version claimed) */ 10072 scsi_ulto2b(0x0600, inq_ptr->version4); 10073 } else { 10074 switch (lun->be_lun->lun_type) { 10075 case T_DIRECT: 10076 /* SBC-4 (no version claimed) */ 10077 scsi_ulto2b(0x0600, inq_ptr->version4); 10078 break; 10079 case T_PROCESSOR: 10080 break; 10081 case T_CDROM: 10082 /* MMC-6 (no version claimed) */ 10083 scsi_ulto2b(0x04E0, inq_ptr->version4); 10084 break; 10085 default: 10086 break; 10087 } 10088 } 10089 10090 ctl_set_success(ctsio); 10091 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10092 ctsio->be_move_done = ctl_config_move_done; 10093 ctl_datamove((union ctl_io *)ctsio); 10094 return (CTL_RETVAL_COMPLETE); 10095} 10096 10097int 10098ctl_inquiry(struct ctl_scsiio *ctsio) 10099{ 10100 struct scsi_inquiry *cdb; 10101 int retval; 10102 10103 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10104 10105 cdb = (struct scsi_inquiry *)ctsio->cdb; 10106 if (cdb->byte2 & SI_EVPD) 10107 retval = ctl_inquiry_evpd(ctsio); 10108 else if (cdb->page_code == 0) 10109 retval = ctl_inquiry_std(ctsio); 10110 else { 10111 ctl_set_invalid_field(ctsio, 10112 /*sks_valid*/ 1, 10113 /*command*/ 1, 10114 /*field*/ 2, 10115 /*bit_valid*/ 0, 10116 /*bit*/ 0); 10117 ctl_done((union ctl_io *)ctsio); 10118 return (CTL_RETVAL_COMPLETE); 10119 } 10120 10121 return (retval); 10122} 10123 10124int 10125ctl_get_config(struct ctl_scsiio *ctsio) 10126{ 10127 struct ctl_lun *lun = CTL_LUN(ctsio); 10128 struct scsi_get_config_header *hdr; 10129 struct scsi_get_config_feature *feature; 10130 struct scsi_get_config *cdb; 10131 uint32_t alloc_len, data_len; 10132 int rt, starting; 10133 10134 cdb = (struct scsi_get_config *)ctsio->cdb; 10135 rt = (cdb->rt & SGC_RT_MASK); 10136 starting = scsi_2btoul(cdb->starting_feature); 10137 alloc_len = scsi_2btoul(cdb->length); 10138 10139 data_len = sizeof(struct scsi_get_config_header) + 10140 sizeof(struct scsi_get_config_feature) + 8 + 10141 sizeof(struct scsi_get_config_feature) + 8 + 10142 sizeof(struct scsi_get_config_feature) + 4 + 10143 sizeof(struct scsi_get_config_feature) + 4 + 10144 sizeof(struct scsi_get_config_feature) + 8 + 10145 sizeof(struct scsi_get_config_feature) + 10146 sizeof(struct scsi_get_config_feature) + 4 + 10147 sizeof(struct scsi_get_config_feature) + 4 + 10148 sizeof(struct scsi_get_config_feature) + 4 + 10149 sizeof(struct scsi_get_config_feature) + 4 + 10150 sizeof(struct scsi_get_config_feature) + 4 + 10151 sizeof(struct scsi_get_config_feature) + 4; 10152 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10153 ctsio->kern_sg_entries = 0; 10154 ctsio->kern_rel_offset = 0; 10155 10156 hdr = (struct scsi_get_config_header *)ctsio->kern_data_ptr; 10157 if (lun->flags & CTL_LUN_NO_MEDIA) 10158 scsi_ulto2b(0x0000, hdr->current_profile); 10159 else 10160 scsi_ulto2b(0x0010, hdr->current_profile); 10161 feature = (struct scsi_get_config_feature *)(hdr + 1); 10162 10163 if (starting > 0x003b) 10164 goto done; 10165 if (starting > 0x003a) 10166 goto f3b; 10167 if (starting > 0x002b) 10168 goto f3a; 10169 if (starting > 0x002a) 10170 goto f2b; 10171 if (starting > 0x001f) 10172 goto f2a; 10173 if (starting > 0x001e) 10174 goto f1f; 10175 if (starting > 0x001d) 10176 goto f1e; 10177 if (starting > 0x0010) 10178 goto f1d; 10179 if (starting > 0x0003) 10180 goto f10; 10181 if (starting > 0x0002) 10182 goto f3; 10183 if (starting > 0x0001) 10184 goto f2; 10185 if (starting > 0x0000) 10186 goto f1; 10187 10188 /* Profile List */ 10189 scsi_ulto2b(0x0000, feature->feature_code); 10190 feature->flags = SGC_F_PERSISTENT | SGC_F_CURRENT; 10191 feature->add_length = 8; 10192 scsi_ulto2b(0x0008, &feature->feature_data[0]); /* CD-ROM */ 10193 feature->feature_data[2] = 0x00; 10194 scsi_ulto2b(0x0010, &feature->feature_data[4]); /* DVD-ROM */ 10195 feature->feature_data[6] = 0x01; 10196 feature = (struct scsi_get_config_feature *) 10197 &feature->feature_data[feature->add_length]; 10198 10199f1: /* Core */ 10200 scsi_ulto2b(0x0001, feature->feature_code); 10201 feature->flags = 0x08 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10202 feature->add_length = 8; 10203 scsi_ulto4b(0x00000000, &feature->feature_data[0]); 10204 feature->feature_data[4] = 0x03; 10205 feature = (struct scsi_get_config_feature *) 10206 &feature->feature_data[feature->add_length]; 10207 10208f2: /* Morphing */ 10209 scsi_ulto2b(0x0002, feature->feature_code); 10210 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10211 feature->add_length = 4; 10212 feature->feature_data[0] = 0x02; 10213 feature = (struct scsi_get_config_feature *) 10214 &feature->feature_data[feature->add_length]; 10215 10216f3: /* Removable Medium */ 10217 scsi_ulto2b(0x0003, feature->feature_code); 10218 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10219 feature->add_length = 4; 10220 feature->feature_data[0] = 0x39; 10221 feature = (struct scsi_get_config_feature *) 10222 &feature->feature_data[feature->add_length]; 10223 10224 if (rt == SGC_RT_CURRENT && (lun->flags & CTL_LUN_NO_MEDIA)) 10225 goto done; 10226 10227f10: /* Random Read */ 10228 scsi_ulto2b(0x0010, feature->feature_code); 10229 feature->flags = 0x00; 10230 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10231 feature->flags |= SGC_F_CURRENT; 10232 feature->add_length = 8; 10233 scsi_ulto4b(lun->be_lun->blocksize, &feature->feature_data[0]); 10234 scsi_ulto2b(1, &feature->feature_data[4]); 10235 feature->feature_data[6] = 0x00; 10236 feature = (struct scsi_get_config_feature *) 10237 &feature->feature_data[feature->add_length]; 10238 10239f1d: /* Multi-Read */ 10240 scsi_ulto2b(0x001D, feature->feature_code); 10241 feature->flags = 0x00; 10242 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10243 feature->flags |= SGC_F_CURRENT; 10244 feature->add_length = 0; 10245 feature = (struct scsi_get_config_feature *) 10246 &feature->feature_data[feature->add_length]; 10247 10248f1e: /* CD Read */ 10249 scsi_ulto2b(0x001E, feature->feature_code); 10250 feature->flags = 0x00; 10251 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10252 feature->flags |= SGC_F_CURRENT; 10253 feature->add_length = 4; 10254 feature->feature_data[0] = 0x00; 10255 feature = (struct scsi_get_config_feature *) 10256 &feature->feature_data[feature->add_length]; 10257 10258f1f: /* DVD Read */ 10259 scsi_ulto2b(0x001F, feature->feature_code); 10260 feature->flags = 0x08; 10261 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10262 feature->flags |= SGC_F_CURRENT; 10263 feature->add_length = 4; 10264 feature->feature_data[0] = 0x01; 10265 feature->feature_data[2] = 0x03; 10266 feature = (struct scsi_get_config_feature *) 10267 &feature->feature_data[feature->add_length]; 10268 10269f2a: /* DVD+RW */ 10270 scsi_ulto2b(0x002A, feature->feature_code); 10271 feature->flags = 0x04; 10272 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10273 feature->flags |= SGC_F_CURRENT; 10274 feature->add_length = 4; 10275 feature->feature_data[0] = 0x00; 10276 feature->feature_data[1] = 0x00; 10277 feature = (struct scsi_get_config_feature *) 10278 &feature->feature_data[feature->add_length]; 10279 10280f2b: /* DVD+R */ 10281 scsi_ulto2b(0x002B, feature->feature_code); 10282 feature->flags = 0x00; 10283 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10284 feature->flags |= SGC_F_CURRENT; 10285 feature->add_length = 4; 10286 feature->feature_data[0] = 0x00; 10287 feature = (struct scsi_get_config_feature *) 10288 &feature->feature_data[feature->add_length]; 10289 10290f3a: /* DVD+RW Dual Layer */ 10291 scsi_ulto2b(0x003A, feature->feature_code); 10292 feature->flags = 0x00; 10293 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10294 feature->flags |= SGC_F_CURRENT; 10295 feature->add_length = 4; 10296 feature->feature_data[0] = 0x00; 10297 feature->feature_data[1] = 0x00; 10298 feature = (struct scsi_get_config_feature *) 10299 &feature->feature_data[feature->add_length]; 10300 10301f3b: /* DVD+R Dual Layer */ 10302 scsi_ulto2b(0x003B, feature->feature_code); 10303 feature->flags = 0x00; 10304 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10305 feature->flags |= SGC_F_CURRENT; 10306 feature->add_length = 4; 10307 feature->feature_data[0] = 0x00; 10308 feature = (struct scsi_get_config_feature *) 10309 &feature->feature_data[feature->add_length]; 10310 10311done: 10312 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10313 if (rt == SGC_RT_SPECIFIC && data_len > 4) { 10314 feature = (struct scsi_get_config_feature *)(hdr + 1); 10315 if (scsi_2btoul(feature->feature_code) == starting) 10316 feature = (struct scsi_get_config_feature *) 10317 &feature->feature_data[feature->add_length]; 10318 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10319 } 10320 scsi_ulto4b(data_len - 4, hdr->data_length); 10321 ctsio->kern_data_len = min(data_len, alloc_len); 10322 ctsio->kern_total_len = ctsio->kern_data_len; 10323 10324 ctl_set_success(ctsio); 10325 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10326 ctsio->be_move_done = ctl_config_move_done; 10327 ctl_datamove((union ctl_io *)ctsio); 10328 return (CTL_RETVAL_COMPLETE); 10329} 10330 10331int 10332ctl_get_event_status(struct ctl_scsiio *ctsio) 10333{ 10334 struct scsi_get_event_status_header *hdr; 10335 struct scsi_get_event_status *cdb; 10336 uint32_t alloc_len, data_len; 10337 int notif_class; 10338 10339 cdb = (struct scsi_get_event_status *)ctsio->cdb; 10340 if ((cdb->byte2 & SGESN_POLLED) == 0) { 10341 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1, 10342 /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 10343 ctl_done((union ctl_io *)ctsio); 10344 return (CTL_RETVAL_COMPLETE); 10345 } 10346 notif_class = cdb->notif_class; 10347 alloc_len = scsi_2btoul(cdb->length); 10348 10349 data_len = sizeof(struct scsi_get_event_status_header); 10350 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10351 ctsio->kern_sg_entries = 0; 10352 ctsio->kern_rel_offset = 0; 10353 ctsio->kern_data_len = min(data_len, alloc_len); 10354 ctsio->kern_total_len = ctsio->kern_data_len; 10355 10356 hdr = (struct scsi_get_event_status_header *)ctsio->kern_data_ptr; 10357 scsi_ulto2b(0, hdr->descr_length); 10358 hdr->nea_class = SGESN_NEA; 10359 hdr->supported_class = 0; 10360 10361 ctl_set_success(ctsio); 10362 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10363 ctsio->be_move_done = ctl_config_move_done; 10364 ctl_datamove((union ctl_io *)ctsio); 10365 return (CTL_RETVAL_COMPLETE); 10366} 10367 10368int 10369ctl_mechanism_status(struct ctl_scsiio *ctsio) 10370{ 10371 struct scsi_mechanism_status_header *hdr; 10372 struct scsi_mechanism_status *cdb; 10373 uint32_t alloc_len, data_len; 10374 10375 cdb = (struct scsi_mechanism_status *)ctsio->cdb; 10376 alloc_len = scsi_2btoul(cdb->length); 10377 10378 data_len = sizeof(struct scsi_mechanism_status_header); 10379 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10380 ctsio->kern_sg_entries = 0; 10381 ctsio->kern_rel_offset = 0; 10382 ctsio->kern_data_len = min(data_len, alloc_len); 10383 ctsio->kern_total_len = ctsio->kern_data_len; 10384 10385 hdr = (struct scsi_mechanism_status_header *)ctsio->kern_data_ptr; 10386 hdr->state1 = 0x00; 10387 hdr->state2 = 0xe0; 10388 scsi_ulto3b(0, hdr->lba); 10389 hdr->slots_num = 0; 10390 scsi_ulto2b(0, hdr->slots_length); 10391 10392 ctl_set_success(ctsio); 10393 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10394 ctsio->be_move_done = ctl_config_move_done; 10395 ctl_datamove((union ctl_io *)ctsio); 10396 return (CTL_RETVAL_COMPLETE); 10397} 10398 10399static void 10400ctl_ultomsf(uint32_t lba, uint8_t *buf) 10401{ 10402 10403 lba += 150; 10404 buf[0] = 0; 10405 buf[1] = bin2bcd((lba / 75) / 60); 10406 buf[2] = bin2bcd((lba / 75) % 60); 10407 buf[3] = bin2bcd(lba % 75); 10408} 10409 10410int 10411ctl_read_toc(struct ctl_scsiio *ctsio) 10412{ 10413 struct ctl_lun *lun = CTL_LUN(ctsio); 10414 struct scsi_read_toc_hdr *hdr; 10415 struct scsi_read_toc_type01_descr *descr; 10416 struct scsi_read_toc *cdb; 10417 uint32_t alloc_len, data_len; 10418 int format, msf; 10419 10420 cdb = (struct scsi_read_toc *)ctsio->cdb; 10421 msf = (cdb->byte2 & CD_MSF) != 0; 10422 format = cdb->format; 10423 alloc_len = scsi_2btoul(cdb->data_len); 10424 10425 data_len = sizeof(struct scsi_read_toc_hdr); 10426 if (format == 0) 10427 data_len += 2 * sizeof(struct scsi_read_toc_type01_descr); 10428 else 10429 data_len += sizeof(struct scsi_read_toc_type01_descr); 10430 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10431 ctsio->kern_sg_entries = 0; 10432 ctsio->kern_rel_offset = 0; 10433 ctsio->kern_data_len = min(data_len, alloc_len); 10434 ctsio->kern_total_len = ctsio->kern_data_len; 10435 10436 hdr = (struct scsi_read_toc_hdr *)ctsio->kern_data_ptr; 10437 if (format == 0) { 10438 scsi_ulto2b(0x12, hdr->data_length); 10439 hdr->first = 1; 10440 hdr->last = 1; 10441 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10442 descr->addr_ctl = 0x14; 10443 descr->track_number = 1; 10444 if (msf) 10445 ctl_ultomsf(0, descr->track_start); 10446 else 10447 scsi_ulto4b(0, descr->track_start); 10448 descr++; 10449 descr->addr_ctl = 0x14; 10450 descr->track_number = 0xaa; 10451 if (msf) 10452 ctl_ultomsf(lun->be_lun->maxlba+1, descr->track_start); 10453 else 10454 scsi_ulto4b(lun->be_lun->maxlba+1, descr->track_start); 10455 } else { 10456 scsi_ulto2b(0x0a, hdr->data_length); 10457 hdr->first = 1; 10458 hdr->last = 1; 10459 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10460 descr->addr_ctl = 0x14; 10461 descr->track_number = 1; 10462 if (msf) 10463 ctl_ultomsf(0, descr->track_start); 10464 else 10465 scsi_ulto4b(0, descr->track_start); 10466 } 10467 10468 ctl_set_success(ctsio); 10469 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10470 ctsio->be_move_done = ctl_config_move_done; 10471 ctl_datamove((union ctl_io *)ctsio); 10472 return (CTL_RETVAL_COMPLETE); 10473} 10474 10475/* 10476 * For known CDB types, parse the LBA and length. 10477 */ 10478static int 10479ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10480{ 10481 if (io->io_hdr.io_type != CTL_IO_SCSI) 10482 return (1); 10483 10484 switch (io->scsiio.cdb[0]) { 10485 case COMPARE_AND_WRITE: { 10486 struct scsi_compare_and_write *cdb; 10487 10488 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10489 10490 *lba = scsi_8btou64(cdb->addr); 10491 *len = cdb->length; 10492 break; 10493 } 10494 case READ_6: 10495 case WRITE_6: { 10496 struct scsi_rw_6 *cdb; 10497 10498 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10499 10500 *lba = scsi_3btoul(cdb->addr); 10501 /* only 5 bits are valid in the most significant address byte */ 10502 *lba &= 0x1fffff; 10503 *len = cdb->length; 10504 break; 10505 } 10506 case READ_10: 10507 case WRITE_10: { 10508 struct scsi_rw_10 *cdb; 10509 10510 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10511 10512 *lba = scsi_4btoul(cdb->addr); 10513 *len = scsi_2btoul(cdb->length); 10514 break; 10515 } 10516 case WRITE_VERIFY_10: { 10517 struct scsi_write_verify_10 *cdb; 10518 10519 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10520 10521 *lba = scsi_4btoul(cdb->addr); 10522 *len = scsi_2btoul(cdb->length); 10523 break; 10524 } 10525 case READ_12: 10526 case WRITE_12: { 10527 struct scsi_rw_12 *cdb; 10528 10529 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10530 10531 *lba = scsi_4btoul(cdb->addr); 10532 *len = scsi_4btoul(cdb->length); 10533 break; 10534 } 10535 case WRITE_VERIFY_12: { 10536 struct scsi_write_verify_12 *cdb; 10537 10538 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10539 10540 *lba = scsi_4btoul(cdb->addr); 10541 *len = scsi_4btoul(cdb->length); 10542 break; 10543 } 10544 case READ_16: 10545 case WRITE_16: { 10546 struct scsi_rw_16 *cdb; 10547 10548 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10549 10550 *lba = scsi_8btou64(cdb->addr); 10551 *len = scsi_4btoul(cdb->length); 10552 break; 10553 } 10554 case WRITE_ATOMIC_16: { 10555 struct scsi_write_atomic_16 *cdb; 10556 10557 cdb = (struct scsi_write_atomic_16 *)io->scsiio.cdb; 10558 10559 *lba = scsi_8btou64(cdb->addr); 10560 *len = scsi_2btoul(cdb->length); 10561 break; 10562 } 10563 case WRITE_VERIFY_16: { 10564 struct scsi_write_verify_16 *cdb; 10565 10566 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10567 10568 *lba = scsi_8btou64(cdb->addr); 10569 *len = scsi_4btoul(cdb->length); 10570 break; 10571 } 10572 case WRITE_SAME_10: { 10573 struct scsi_write_same_10 *cdb; 10574 10575 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10576 10577 *lba = scsi_4btoul(cdb->addr); 10578 *len = scsi_2btoul(cdb->length); 10579 break; 10580 } 10581 case WRITE_SAME_16: { 10582 struct scsi_write_same_16 *cdb; 10583 10584 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10585 10586 *lba = scsi_8btou64(cdb->addr); 10587 *len = scsi_4btoul(cdb->length); 10588 break; 10589 } 10590 case VERIFY_10: { 10591 struct scsi_verify_10 *cdb; 10592 10593 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10594 10595 *lba = scsi_4btoul(cdb->addr); 10596 *len = scsi_2btoul(cdb->length); 10597 break; 10598 } 10599 case VERIFY_12: { 10600 struct scsi_verify_12 *cdb; 10601 10602 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10603 10604 *lba = scsi_4btoul(cdb->addr); 10605 *len = scsi_4btoul(cdb->length); 10606 break; 10607 } 10608 case VERIFY_16: { 10609 struct scsi_verify_16 *cdb; 10610 10611 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10612 10613 *lba = scsi_8btou64(cdb->addr); 10614 *len = scsi_4btoul(cdb->length); 10615 break; 10616 } 10617 case UNMAP: { 10618 *lba = 0; 10619 *len = UINT64_MAX; 10620 break; 10621 } 10622 case SERVICE_ACTION_IN: { /* GET LBA STATUS */ 10623 struct scsi_get_lba_status *cdb; 10624 10625 cdb = (struct scsi_get_lba_status *)io->scsiio.cdb; 10626 *lba = scsi_8btou64(cdb->addr); 10627 *len = UINT32_MAX; 10628 break; 10629 } 10630 default: 10631 return (1); 10632 break; /* NOTREACHED */ 10633 } 10634 10635 return (0); 10636} 10637 10638static ctl_action 10639ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2, 10640 bool seq) 10641{ 10642 uint64_t endlba1, endlba2; 10643 10644 endlba1 = lba1 + len1 - (seq ? 0 : 1); 10645 endlba2 = lba2 + len2 - 1; 10646 10647 if ((endlba1 < lba2) || (endlba2 < lba1)) 10648 return (CTL_ACTION_PASS); 10649 else 10650 return (CTL_ACTION_BLOCK); 10651} 10652 10653static int 10654ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10655{ 10656 struct ctl_ptr_len_flags *ptrlen; 10657 struct scsi_unmap_desc *buf, *end, *range; 10658 uint64_t lba; 10659 uint32_t len; 10660 10661 /* If not UNMAP -- go other way. */ 10662 if (io->io_hdr.io_type != CTL_IO_SCSI || 10663 io->scsiio.cdb[0] != UNMAP) 10664 return (CTL_ACTION_ERROR); 10665 10666 /* If UNMAP without data -- block and wait for data. */ 10667 ptrlen = (struct ctl_ptr_len_flags *) 10668 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10669 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10670 ptrlen->ptr == NULL) 10671 return (CTL_ACTION_BLOCK); 10672 10673 /* UNMAP with data -- check for collision. */ 10674 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10675 end = buf + ptrlen->len / sizeof(*buf); 10676 for (range = buf; range < end; range++) { 10677 lba = scsi_8btou64(range->lba); 10678 len = scsi_4btoul(range->length); 10679 if ((lba < lba2 + len2) && (lba + len > lba2)) 10680 return (CTL_ACTION_BLOCK); 10681 } 10682 return (CTL_ACTION_PASS); 10683} 10684 10685static ctl_action 10686ctl_extent_check(union ctl_io *io1, union ctl_io *io2, bool seq) 10687{ 10688 uint64_t lba1, lba2; 10689 uint64_t len1, len2; 10690 int retval; 10691 10692 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10693 return (CTL_ACTION_ERROR); 10694 10695 retval = ctl_extent_check_unmap(io1, lba2, len2); 10696 if (retval != CTL_ACTION_ERROR) 10697 return (retval); 10698 10699 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10700 return (CTL_ACTION_ERROR); 10701 10702 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10703 seq = FALSE; 10704 return (ctl_extent_check_lba(lba1, len1, lba2, len2, seq)); 10705} 10706 10707static ctl_action 10708ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2) 10709{ 10710 uint64_t lba1, lba2; 10711 uint64_t len1, len2; 10712 10713 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10714 return (CTL_ACTION_PASS); 10715 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10716 return (CTL_ACTION_ERROR); 10717 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10718 return (CTL_ACTION_ERROR); 10719 10720 if (lba1 + len1 == lba2) 10721 return (CTL_ACTION_BLOCK); 10722 return (CTL_ACTION_PASS); 10723} 10724 10725static ctl_action 10726ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10727 union ctl_io *ooa_io) 10728{ 10729 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10730 const ctl_serialize_action *serialize_row; 10731 10732 /* 10733 * Aborted commands are not going to be executed and may even 10734 * not report completion, so we don't care about their order. 10735 * Let them complete ASAP to clean the OOA queue. 10736 */ 10737 if (pending_io->io_hdr.flags & CTL_FLAG_ABORT) 10738 return (CTL_ACTION_SKIP); 10739 10740 /* 10741 * The initiator attempted multiple untagged commands at the same 10742 * time. Can't do that. 10743 */ 10744 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10745 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10746 && ((pending_io->io_hdr.nexus.targ_port == 10747 ooa_io->io_hdr.nexus.targ_port) 10748 && (pending_io->io_hdr.nexus.initid == 10749 ooa_io->io_hdr.nexus.initid)) 10750 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10751 CTL_FLAG_STATUS_SENT)) == 0)) 10752 return (CTL_ACTION_OVERLAP); 10753 10754 /* 10755 * The initiator attempted to send multiple tagged commands with 10756 * the same ID. (It's fine if different initiators have the same 10757 * tag ID.) 10758 * 10759 * Even if all of those conditions are true, we don't kill the I/O 10760 * if the command ahead of us has been aborted. We won't end up 10761 * sending it to the FETD, and it's perfectly legal to resend a 10762 * command with the same tag number as long as the previous 10763 * instance of this tag number has been aborted somehow. 10764 */ 10765 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10766 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10767 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10768 && ((pending_io->io_hdr.nexus.targ_port == 10769 ooa_io->io_hdr.nexus.targ_port) 10770 && (pending_io->io_hdr.nexus.initid == 10771 ooa_io->io_hdr.nexus.initid)) 10772 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10773 CTL_FLAG_STATUS_SENT)) == 0)) 10774 return (CTL_ACTION_OVERLAP_TAG); 10775 10776 /* 10777 * If we get a head of queue tag, SAM-3 says that we should 10778 * immediately execute it. 10779 * 10780 * What happens if this command would normally block for some other 10781 * reason? e.g. a request sense with a head of queue tag 10782 * immediately after a write. Normally that would block, but this 10783 * will result in its getting executed immediately... 10784 * 10785 * We currently return "pass" instead of "skip", so we'll end up 10786 * going through the rest of the queue to check for overlapped tags. 10787 * 10788 * XXX KDM check for other types of blockage first?? 10789 */ 10790 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10791 return (CTL_ACTION_PASS); 10792 10793 /* 10794 * Ordered tags have to block until all items ahead of them 10795 * have completed. If we get called with an ordered tag, we always 10796 * block, if something else is ahead of us in the queue. 10797 */ 10798 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10799 return (CTL_ACTION_BLOCK); 10800 10801 /* 10802 * Simple tags get blocked until all head of queue and ordered tags 10803 * ahead of them have completed. I'm lumping untagged commands in 10804 * with simple tags here. XXX KDM is that the right thing to do? 10805 */ 10806 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10807 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10808 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10809 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10810 return (CTL_ACTION_BLOCK); 10811 10812 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 10813 KASSERT(pending_entry->seridx < CTL_SERIDX_COUNT, 10814 ("%s: Invalid seridx %d for pending CDB %02x %02x @ %p", 10815 __func__, pending_entry->seridx, pending_io->scsiio.cdb[0], 10816 pending_io->scsiio.cdb[1], pending_io)); 10817 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 10818 if (ooa_entry->seridx == CTL_SERIDX_INVLD) 10819 return (CTL_ACTION_PASS); /* Unsupported command in OOA queue */ 10820 KASSERT(ooa_entry->seridx < CTL_SERIDX_COUNT, 10821 ("%s: Invalid seridx %d for ooa CDB %02x %02x @ %p", 10822 __func__, ooa_entry->seridx, ooa_io->scsiio.cdb[0], 10823 ooa_io->scsiio.cdb[1], ooa_io)); 10824 10825 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 10826 10827 switch (serialize_row[pending_entry->seridx]) { 10828 case CTL_SER_BLOCK: 10829 return (CTL_ACTION_BLOCK); 10830 case CTL_SER_EXTENT: 10831 return (ctl_extent_check(ooa_io, pending_io, 10832 (lun->be_lun && lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 10833 case CTL_SER_EXTENTOPT: 10834 if ((lun->MODE_CTRL.queue_flags & SCP_QUEUE_ALG_MASK) != 10835 SCP_QUEUE_ALG_UNRESTRICTED) 10836 return (ctl_extent_check(ooa_io, pending_io, 10837 (lun->be_lun && 10838 lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 10839 return (CTL_ACTION_PASS); 10840 case CTL_SER_EXTENTSEQ: 10841 if (lun->be_lun && lun->be_lun->serseq != CTL_LUN_SERSEQ_OFF) 10842 return (ctl_extent_check_seq(ooa_io, pending_io)); 10843 return (CTL_ACTION_PASS); 10844 case CTL_SER_PASS: 10845 return (CTL_ACTION_PASS); 10846 case CTL_SER_BLOCKOPT: 10847 if ((lun->MODE_CTRL.queue_flags & SCP_QUEUE_ALG_MASK) != 10848 SCP_QUEUE_ALG_UNRESTRICTED) 10849 return (CTL_ACTION_BLOCK); 10850 return (CTL_ACTION_PASS); 10851 case CTL_SER_SKIP: 10852 return (CTL_ACTION_SKIP); 10853 default: 10854 panic("%s: Invalid serialization value %d for %d => %d", 10855 __func__, serialize_row[pending_entry->seridx], 10856 pending_entry->seridx, ooa_entry->seridx); 10857 } 10858 10859 return (CTL_ACTION_ERROR); 10860} 10861 10862/* 10863 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 10864 * Assumptions: 10865 * - pending_io is generally either incoming, or on the blocked queue 10866 * - starting I/O is the I/O we want to start the check with. 10867 */ 10868static ctl_action 10869ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 10870 union ctl_io **starting_io) 10871{ 10872 union ctl_io *ooa_io; 10873 ctl_action action; 10874 10875 mtx_assert(&lun->lun_lock, MA_OWNED); 10876 10877 /* 10878 * Run back along the OOA queue, starting with the current 10879 * blocked I/O and going through every I/O before it on the 10880 * queue. If starting_io is NULL, we'll just end up returning 10881 * CTL_ACTION_PASS. 10882 */ 10883 for (ooa_io = *starting_io; ooa_io != NULL; 10884 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 10885 ooa_links)){ 10886 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 10887 if (action != CTL_ACTION_PASS) { 10888 *starting_io = ooa_io; 10889 return (action); 10890 } 10891 } 10892 10893 *starting_io = NULL; 10894 return (CTL_ACTION_PASS); 10895} 10896 10897/* 10898 * Try to unblock the specified I/O. 10899 * 10900 * skip parameter allows explicitly skip present blocker of the I/O, 10901 * starting from the previous one on OOA queue. It can be used when 10902 * we know for sure that the blocker I/O does no longer count. 10903 */ 10904static void 10905ctl_try_unblock_io(struct ctl_lun *lun, union ctl_io *io, bool skip) 10906{ 10907 struct ctl_softc *softc = lun->ctl_softc; 10908 union ctl_io *bio, *obio; 10909 const struct ctl_cmd_entry *entry; 10910 union ctl_ha_msg msg_info; 10911 ctl_action action; 10912 10913 mtx_assert(&lun->lun_lock, MA_OWNED); 10914 10915 if (io->io_hdr.blocker == NULL) 10916 return; 10917 10918 obio = bio = io->io_hdr.blocker; 10919 if (skip) 10920 bio = (union ctl_io *)TAILQ_PREV(&bio->io_hdr, ctl_ooaq, 10921 ooa_links); 10922 action = ctl_check_ooa(lun, io, &bio); 10923 if (action == CTL_ACTION_BLOCK) { 10924 /* Still blocked, but may be by different I/O now. */ 10925 if (bio != obio) { 10926 TAILQ_REMOVE(&obio->io_hdr.blocked_queue, 10927 &io->io_hdr, blocked_links); 10928 TAILQ_INSERT_TAIL(&bio->io_hdr.blocked_queue, 10929 &io->io_hdr, blocked_links); 10930 io->io_hdr.blocker = bio; 10931 } 10932 return; 10933 } 10934 10935 /* No longer blocked, one way or another. */ 10936 TAILQ_REMOVE(&obio->io_hdr.blocked_queue, &io->io_hdr, blocked_links); 10937 io->io_hdr.blocker = NULL; 10938 10939 switch (action) { 10940 case CTL_ACTION_OVERLAP: 10941 ctl_set_overlapped_cmd(&io->scsiio); 10942 goto error; 10943 case CTL_ACTION_OVERLAP_TAG: 10944 ctl_set_overlapped_tag(&io->scsiio, 10945 io->scsiio.tag_num & 0xff); 10946 goto error; 10947 case CTL_ACTION_PASS: 10948 case CTL_ACTION_SKIP: 10949 10950 /* Serializing commands from the other SC retire there. */ 10951 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) && 10952 (softc->ha_mode != CTL_HA_MODE_XFER)) { 10953 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 10954 msg_info.hdr.original_sc = io->io_hdr.remote_io; 10955 msg_info.hdr.serializing_sc = io; 10956 msg_info.hdr.msg_type = CTL_MSG_R2R; 10957 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 10958 sizeof(msg_info.hdr), M_NOWAIT); 10959 break; 10960 } 10961 10962 /* 10963 * Check this I/O for LUN state changes that may have happened 10964 * while this command was blocked. The LUN state may have been 10965 * changed by a command ahead of us in the queue. 10966 */ 10967 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 10968 if (ctl_scsiio_lun_check(lun, entry, &io->scsiio) != 0) { 10969 ctl_done(io); 10970 break; 10971 } 10972 10973 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 10974 ctl_enqueue_rtr(io); 10975 break; 10976 case CTL_ACTION_ERROR: 10977 default: 10978 ctl_set_internal_failure(&io->scsiio, 10979 /*sks_valid*/ 0, 10980 /*retry_count*/ 0); 10981 10982error: 10983 /* Serializing commands from the other SC are done here. */ 10984 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) && 10985 (softc->ha_mode != CTL_HA_MODE_XFER)) { 10986 ctl_try_unblock_others(lun, io, TRUE); 10987 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 10988 10989 ctl_copy_sense_data_back(io, &msg_info); 10990 msg_info.hdr.original_sc = io->io_hdr.remote_io; 10991 msg_info.hdr.serializing_sc = NULL; 10992 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 10993 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 10994 sizeof(msg_info.scsi), M_WAITOK); 10995 ctl_free_io(io); 10996 break; 10997 } 10998 10999 ctl_done(io); 11000 break; 11001 } 11002} 11003 11004/* 11005 * Try to unblock I/Os blocked by the specified I/O. 11006 * 11007 * skip parameter allows explicitly skip the specified I/O as blocker, 11008 * starting from the previous one on the OOA queue. It can be used when 11009 * we know for sure that the specified I/O does no longer count (done). 11010 * It has to be still on OOA queue though so that we know where to start. 11011 */ 11012static void 11013ctl_try_unblock_others(struct ctl_lun *lun, union ctl_io *bio, bool skip) 11014{ 11015 union ctl_io *io, *next_io; 11016 11017 mtx_assert(&lun->lun_lock, MA_OWNED); 11018 11019 for (io = (union ctl_io *)TAILQ_FIRST(&bio->io_hdr.blocked_queue); 11020 io != NULL; io = next_io) { 11021 next_io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, blocked_links); 11022 11023 KASSERT(io->io_hdr.blocker != NULL, 11024 ("I/O %p on blocked list without blocker", io)); 11025 ctl_try_unblock_io(lun, io, skip); 11026 } 11027 KASSERT(!skip || TAILQ_EMPTY(&bio->io_hdr.blocked_queue), 11028 ("blocked_queue is not empty after skipping %p", bio)); 11029} 11030 11031/* 11032 * This routine (with one exception) checks LUN flags that can be set by 11033 * commands ahead of us in the OOA queue. These flags have to be checked 11034 * when a command initially comes in, and when we pull a command off the 11035 * blocked queue and are preparing to execute it. The reason we have to 11036 * check these flags for commands on the blocked queue is that the LUN 11037 * state may have been changed by a command ahead of us while we're on the 11038 * blocked queue. 11039 * 11040 * Ordering is somewhat important with these checks, so please pay 11041 * careful attention to the placement of any new checks. 11042 */ 11043static int 11044ctl_scsiio_lun_check(struct ctl_lun *lun, 11045 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11046{ 11047 struct ctl_softc *softc = lun->ctl_softc; 11048 int retval; 11049 uint32_t residx; 11050 11051 retval = 0; 11052 11053 mtx_assert(&lun->lun_lock, MA_OWNED); 11054 11055 /* 11056 * If this shelf is a secondary shelf controller, we may have to 11057 * reject some commands disallowed by HA mode and link state. 11058 */ 11059 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11060 if (softc->ha_link == CTL_HA_LINK_OFFLINE && 11061 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11062 ctl_set_lun_unavail(ctsio); 11063 retval = 1; 11064 goto bailout; 11065 } 11066 if ((lun->flags & CTL_LUN_PEER_SC_PRIMARY) == 0 && 11067 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11068 ctl_set_lun_transit(ctsio); 11069 retval = 1; 11070 goto bailout; 11071 } 11072 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY && 11073 (entry->flags & CTL_CMD_FLAG_OK_ON_STANDBY) == 0) { 11074 ctl_set_lun_standby(ctsio); 11075 retval = 1; 11076 goto bailout; 11077 } 11078 11079 /* The rest of checks are only done on executing side */ 11080 if (softc->ha_mode == CTL_HA_MODE_XFER) 11081 goto bailout; 11082 } 11083 11084 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11085 if (lun->be_lun && 11086 lun->be_lun->flags & CTL_LUN_FLAG_READONLY) { 11087 ctl_set_hw_write_protected(ctsio); 11088 retval = 1; 11089 goto bailout; 11090 } 11091 if ((lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) { 11092 ctl_set_sense(ctsio, /*current_error*/ 1, 11093 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11094 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11095 retval = 1; 11096 goto bailout; 11097 } 11098 } 11099 11100 /* 11101 * Check for a reservation conflict. If this command isn't allowed 11102 * even on reserved LUNs, and if this initiator isn't the one who 11103 * reserved us, reject the command with a reservation conflict. 11104 */ 11105 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11106 if ((lun->flags & CTL_LUN_RESERVED) 11107 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11108 if (lun->res_idx != residx) { 11109 ctl_set_reservation_conflict(ctsio); 11110 retval = 1; 11111 goto bailout; 11112 } 11113 } 11114 11115 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11116 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11117 /* No reservation or command is allowed. */; 11118 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11119 (lun->pr_res_type == SPR_TYPE_WR_EX || 11120 lun->pr_res_type == SPR_TYPE_WR_EX_RO || 11121 lun->pr_res_type == SPR_TYPE_WR_EX_AR)) { 11122 /* The command is allowed for Write Exclusive resv. */; 11123 } else { 11124 /* 11125 * if we aren't registered or it's a res holder type 11126 * reservation and this isn't the res holder then set a 11127 * conflict. 11128 */ 11129 if (ctl_get_prkey(lun, residx) == 0 || 11130 (residx != lun->pr_res_idx && lun->pr_res_type < 4)) { 11131 ctl_set_reservation_conflict(ctsio); 11132 retval = 1; 11133 goto bailout; 11134 } 11135 } 11136 11137 if ((entry->flags & CTL_CMD_FLAG_OK_ON_NO_MEDIA) == 0) { 11138 if (lun->flags & CTL_LUN_EJECTED) 11139 ctl_set_lun_ejected(ctsio); 11140 else if (lun->flags & CTL_LUN_NO_MEDIA) { 11141 if (lun->flags & CTL_LUN_REMOVABLE) 11142 ctl_set_lun_no_media(ctsio); 11143 else 11144 ctl_set_lun_int_reqd(ctsio); 11145 } else if (lun->flags & CTL_LUN_STOPPED) 11146 ctl_set_lun_stopped(ctsio); 11147 else 11148 goto bailout; 11149 retval = 1; 11150 goto bailout; 11151 } 11152 11153bailout: 11154 return (retval); 11155} 11156 11157static void 11158ctl_failover_io(union ctl_io *io, int have_lock) 11159{ 11160 ctl_set_busy(&io->scsiio); 11161 ctl_done(io); 11162} 11163 11164static void 11165ctl_failover_lun(union ctl_io *rio) 11166{ 11167 struct ctl_softc *softc = CTL_SOFTC(rio); 11168 struct ctl_lun *lun; 11169 struct ctl_io_hdr *io, *next_io; 11170 uint32_t targ_lun; 11171 11172 targ_lun = rio->io_hdr.nexus.targ_mapped_lun; 11173 CTL_DEBUG_PRINT(("FAILOVER for lun %ju\n", targ_lun)); 11174 11175 /* Find and lock the LUN. */ 11176 mtx_lock(&softc->ctl_lock); 11177 if (targ_lun > ctl_max_luns || 11178 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11179 mtx_unlock(&softc->ctl_lock); 11180 return; 11181 } 11182 mtx_lock(&lun->lun_lock); 11183 mtx_unlock(&softc->ctl_lock); 11184 if (lun->flags & CTL_LUN_DISABLED) { 11185 mtx_unlock(&lun->lun_lock); 11186 return; 11187 } 11188 11189 if (softc->ha_mode == CTL_HA_MODE_XFER) { 11190 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11191 /* We are master */ 11192 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11193 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11194 io->flags |= CTL_FLAG_ABORT; 11195 io->flags |= CTL_FLAG_FAILOVER; 11196 ctl_try_unblock_io(lun, 11197 (union ctl_io *)io, FALSE); 11198 } else { /* This can be only due to DATAMOVE */ 11199 io->msg_type = CTL_MSG_DATAMOVE_DONE; 11200 io->flags &= ~CTL_FLAG_DMA_INPROG; 11201 io->flags |= CTL_FLAG_IO_ACTIVE; 11202 io->port_status = 31340; 11203 ctl_enqueue_isc((union ctl_io *)io); 11204 } 11205 } else 11206 /* We are slave */ 11207 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11208 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11209 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11210 io->flags |= CTL_FLAG_FAILOVER; 11211 } else { 11212 ctl_set_busy(&((union ctl_io *)io)-> 11213 scsiio); 11214 ctl_done((union ctl_io *)io); 11215 } 11216 } 11217 } 11218 } else { /* SERIALIZE modes */ 11219 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11220 /* We are master */ 11221 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11222 if (io->blocker != NULL) { 11223 TAILQ_REMOVE(&io->blocker->io_hdr.blocked_queue, 11224 io, blocked_links); 11225 io->blocker = NULL; 11226 } 11227 ctl_try_unblock_others(lun, (union ctl_io *)io, 11228 TRUE); 11229 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11230 ctl_free_io((union ctl_io *)io); 11231 } else 11232 /* We are slave */ 11233 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11234 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11235 if (!(io->flags & CTL_FLAG_IO_ACTIVE)) { 11236 ctl_set_busy(&((union ctl_io *)io)-> 11237 scsiio); 11238 ctl_done((union ctl_io *)io); 11239 } 11240 } 11241 } 11242 } 11243 mtx_unlock(&lun->lun_lock); 11244} 11245 11246static int 11247ctl_scsiio_precheck(struct ctl_softc *softc, struct ctl_scsiio *ctsio) 11248{ 11249 struct ctl_lun *lun; 11250 const struct ctl_cmd_entry *entry; 11251 union ctl_io *bio; 11252 uint32_t initidx, targ_lun; 11253 int retval = 0; 11254 11255 lun = NULL; 11256 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11257 if (targ_lun < ctl_max_luns) 11258 lun = softc->ctl_luns[targ_lun]; 11259 if (lun) { 11260 /* 11261 * If the LUN is invalid, pretend that it doesn't exist. 11262 * It will go away as soon as all pending I/O has been 11263 * completed. 11264 */ 11265 mtx_lock(&lun->lun_lock); 11266 if (lun->flags & CTL_LUN_DISABLED) { 11267 mtx_unlock(&lun->lun_lock); 11268 lun = NULL; 11269 } 11270 } 11271 CTL_LUN(ctsio) = lun; 11272 if (lun) { 11273 CTL_BACKEND_LUN(ctsio) = lun->be_lun; 11274 11275 /* 11276 * Every I/O goes into the OOA queue for a particular LUN, 11277 * and stays there until completion. 11278 */ 11279#ifdef CTL_TIME_IO 11280 if (TAILQ_EMPTY(&lun->ooa_queue)) 11281 lun->idle_time += getsbinuptime() - lun->last_busy; 11282#endif 11283 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 11284 } 11285 11286 /* Get command entry and return error if it is unsuppotyed. */ 11287 entry = ctl_validate_command(ctsio); 11288 if (entry == NULL) { 11289 if (lun) 11290 mtx_unlock(&lun->lun_lock); 11291 return (retval); 11292 } 11293 11294 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11295 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11296 11297 /* 11298 * Check to see whether we can send this command to LUNs that don't 11299 * exist. This should pretty much only be the case for inquiry 11300 * and request sense. Further checks, below, really require having 11301 * a LUN, so we can't really check the command anymore. Just put 11302 * it on the rtr queue. 11303 */ 11304 if (lun == NULL) { 11305 if (entry->flags & CTL_CMD_FLAG_OK_ON_NO_LUN) { 11306 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11307 ctl_enqueue_rtr((union ctl_io *)ctsio); 11308 return (retval); 11309 } 11310 11311 ctl_set_unsupported_lun(ctsio); 11312 ctl_done((union ctl_io *)ctsio); 11313 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11314 return (retval); 11315 } else { 11316 /* 11317 * Make sure we support this particular command on this LUN. 11318 * e.g., we don't support writes to the control LUN. 11319 */ 11320 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11321 mtx_unlock(&lun->lun_lock); 11322 ctl_set_invalid_opcode(ctsio); 11323 ctl_done((union ctl_io *)ctsio); 11324 return (retval); 11325 } 11326 } 11327 11328 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11329 11330 /* 11331 * If we've got a request sense, it'll clear the contingent 11332 * allegiance condition. Otherwise, if we have a CA condition for 11333 * this initiator, clear it, because it sent down a command other 11334 * than request sense. 11335 */ 11336 if (ctsio->cdb[0] != REQUEST_SENSE) { 11337 struct scsi_sense_data *ps; 11338 11339 ps = lun->pending_sense[initidx / CTL_MAX_INIT_PER_PORT]; 11340 if (ps != NULL) 11341 ps[initidx % CTL_MAX_INIT_PER_PORT].error_code = 0; 11342 } 11343 11344 /* 11345 * If the command has this flag set, it handles its own unit 11346 * attention reporting, we shouldn't do anything. Otherwise we 11347 * check for any pending unit attentions, and send them back to the 11348 * initiator. We only do this when a command initially comes in, 11349 * not when we pull it off the blocked queue. 11350 * 11351 * According to SAM-3, section 5.3.2, the order that things get 11352 * presented back to the host is basically unit attentions caused 11353 * by some sort of reset event, busy status, reservation conflicts 11354 * or task set full, and finally any other status. 11355 * 11356 * One issue here is that some of the unit attentions we report 11357 * don't fall into the "reset" category (e.g. "reported luns data 11358 * has changed"). So reporting it here, before the reservation 11359 * check, may be technically wrong. I guess the only thing to do 11360 * would be to check for and report the reset events here, and then 11361 * check for the other unit attention types after we check for a 11362 * reservation conflict. 11363 * 11364 * XXX KDM need to fix this 11365 */ 11366 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11367 ctl_ua_type ua_type; 11368 u_int sense_len = 0; 11369 11370 ua_type = ctl_build_ua(lun, initidx, &ctsio->sense_data, 11371 &sense_len, SSD_TYPE_NONE); 11372 if (ua_type != CTL_UA_NONE) { 11373 mtx_unlock(&lun->lun_lock); 11374 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11375 ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 11376 ctsio->sense_len = sense_len; 11377 ctl_done((union ctl_io *)ctsio); 11378 return (retval); 11379 } 11380 } 11381 11382 11383 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 11384 mtx_unlock(&lun->lun_lock); 11385 ctl_done((union ctl_io *)ctsio); 11386 return (retval); 11387 } 11388 11389 /* 11390 * XXX CHD this is where we want to send IO to other side if 11391 * this LUN is secondary on this SC. We will need to make a copy 11392 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11393 * the copy we send as FROM_OTHER. 11394 * We also need to stuff the address of the original IO so we can 11395 * find it easily. Something similar will need be done on the other 11396 * side so when we are done we can find the copy. 11397 */ 11398 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 11399 (lun->flags & CTL_LUN_PEER_SC_PRIMARY) != 0 && 11400 (entry->flags & CTL_CMD_FLAG_RUN_HERE) == 0) { 11401 union ctl_ha_msg msg_info; 11402 int isc_retval; 11403 11404 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11405 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11406 mtx_unlock(&lun->lun_lock); 11407 11408 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11409 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11410 msg_info.hdr.serializing_sc = NULL; 11411 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11412 msg_info.scsi.tag_num = ctsio->tag_num; 11413 msg_info.scsi.tag_type = ctsio->tag_type; 11414 msg_info.scsi.cdb_len = ctsio->cdb_len; 11415 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11416 11417 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11418 sizeof(msg_info.scsi) - sizeof(msg_info.scsi.sense_data), 11419 M_WAITOK)) > CTL_HA_STATUS_SUCCESS) { 11420 ctl_set_busy(ctsio); 11421 ctl_done((union ctl_io *)ctsio); 11422 return (retval); 11423 } 11424 return (retval); 11425 } 11426 11427 bio = (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, ooa_links); 11428 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, &bio)) { 11429 case CTL_ACTION_BLOCK: 11430 ctsio->io_hdr.blocker = bio; 11431 TAILQ_INSERT_TAIL(&bio->io_hdr.blocked_queue, &ctsio->io_hdr, 11432 blocked_links); 11433 mtx_unlock(&lun->lun_lock); 11434 return (retval); 11435 case CTL_ACTION_PASS: 11436 case CTL_ACTION_SKIP: 11437 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11438 mtx_unlock(&lun->lun_lock); 11439 ctl_enqueue_rtr((union ctl_io *)ctsio); 11440 break; 11441 case CTL_ACTION_OVERLAP: 11442 mtx_unlock(&lun->lun_lock); 11443 ctl_set_overlapped_cmd(ctsio); 11444 ctl_done((union ctl_io *)ctsio); 11445 break; 11446 case CTL_ACTION_OVERLAP_TAG: 11447 mtx_unlock(&lun->lun_lock); 11448 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11449 ctl_done((union ctl_io *)ctsio); 11450 break; 11451 case CTL_ACTION_ERROR: 11452 default: 11453 mtx_unlock(&lun->lun_lock); 11454 ctl_set_internal_failure(ctsio, 11455 /*sks_valid*/ 0, 11456 /*retry_count*/ 0); 11457 ctl_done((union ctl_io *)ctsio); 11458 break; 11459 } 11460 return (retval); 11461} 11462 11463const struct ctl_cmd_entry * 11464ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11465{ 11466 const struct ctl_cmd_entry *entry; 11467 int service_action; 11468 11469 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11470 if (sa) 11471 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11472 if (entry->flags & CTL_CMD_FLAG_SA5) { 11473 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11474 entry = &((const struct ctl_cmd_entry *) 11475 entry->execute)[service_action]; 11476 } 11477 return (entry); 11478} 11479 11480const struct ctl_cmd_entry * 11481ctl_validate_command(struct ctl_scsiio *ctsio) 11482{ 11483 const struct ctl_cmd_entry *entry; 11484 int i, sa; 11485 uint8_t diff; 11486 11487 entry = ctl_get_cmd_entry(ctsio, &sa); 11488 if (entry->execute == NULL) { 11489 if (sa) 11490 ctl_set_invalid_field(ctsio, 11491 /*sks_valid*/ 1, 11492 /*command*/ 1, 11493 /*field*/ 1, 11494 /*bit_valid*/ 1, 11495 /*bit*/ 4); 11496 else 11497 ctl_set_invalid_opcode(ctsio); 11498 ctl_done((union ctl_io *)ctsio); 11499 return (NULL); 11500 } 11501 KASSERT(entry->length > 0, 11502 ("Not defined length for command 0x%02x/0x%02x", 11503 ctsio->cdb[0], ctsio->cdb[1])); 11504 for (i = 1; i < entry->length; i++) { 11505 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11506 if (diff == 0) 11507 continue; 11508 ctl_set_invalid_field(ctsio, 11509 /*sks_valid*/ 1, 11510 /*command*/ 1, 11511 /*field*/ i, 11512 /*bit_valid*/ 1, 11513 /*bit*/ fls(diff) - 1); 11514 ctl_done((union ctl_io *)ctsio); 11515 return (NULL); 11516 } 11517 return (entry); 11518} 11519 11520static int 11521ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11522{ 11523 11524 switch (lun_type) { 11525 case T_DIRECT: 11526 if ((entry->flags & CTL_CMD_FLAG_OK_ON_DIRECT) == 0) 11527 return (0); 11528 break; 11529 case T_PROCESSOR: 11530 if ((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) 11531 return (0); 11532 break; 11533 case T_CDROM: 11534 if ((entry->flags & CTL_CMD_FLAG_OK_ON_CDROM) == 0) 11535 return (0); 11536 break; 11537 default: 11538 return (0); 11539 } 11540 return (1); 11541} 11542 11543static int 11544ctl_scsiio(struct ctl_scsiio *ctsio) 11545{ 11546 int retval; 11547 const struct ctl_cmd_entry *entry; 11548 11549 retval = CTL_RETVAL_COMPLETE; 11550 11551 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11552 11553 entry = ctl_get_cmd_entry(ctsio, NULL); 11554 11555 /* 11556 * If this I/O has been aborted, just send it straight to 11557 * ctl_done() without executing it. 11558 */ 11559 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11560 ctl_done((union ctl_io *)ctsio); 11561 goto bailout; 11562 } 11563 11564 /* 11565 * All the checks should have been handled by ctl_scsiio_precheck(). 11566 * We should be clear now to just execute the I/O. 11567 */ 11568 retval = entry->execute(ctsio); 11569 11570bailout: 11571 return (retval); 11572} 11573 11574static int 11575ctl_target_reset(union ctl_io *io) 11576{ 11577 struct ctl_softc *softc = CTL_SOFTC(io); 11578 struct ctl_port *port = CTL_PORT(io); 11579 struct ctl_lun *lun; 11580 uint32_t initidx; 11581 ctl_ua_type ua_type; 11582 11583 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11584 union ctl_ha_msg msg_info; 11585 11586 msg_info.hdr.nexus = io->io_hdr.nexus; 11587 msg_info.task.task_action = io->taskio.task_action; 11588 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11589 msg_info.hdr.original_sc = NULL; 11590 msg_info.hdr.serializing_sc = NULL; 11591 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11592 sizeof(msg_info.task), M_WAITOK); 11593 } 11594 11595 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11596 if (io->taskio.task_action == CTL_TASK_TARGET_RESET) 11597 ua_type = CTL_UA_TARG_RESET; 11598 else 11599 ua_type = CTL_UA_BUS_RESET; 11600 mtx_lock(&softc->ctl_lock); 11601 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11602 if (port != NULL && 11603 ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 11604 continue; 11605 ctl_do_lun_reset(lun, initidx, ua_type); 11606 } 11607 mtx_unlock(&softc->ctl_lock); 11608 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11609 return (0); 11610} 11611 11612/* 11613 * The LUN should always be set. The I/O is optional, and is used to 11614 * distinguish between I/Os sent by this initiator, and by other 11615 * initiators. We set unit attention for initiators other than this one. 11616 * SAM-3 is vague on this point. It does say that a unit attention should 11617 * be established for other initiators when a LUN is reset (see section 11618 * 5.7.3), but it doesn't specifically say that the unit attention should 11619 * be established for this particular initiator when a LUN is reset. Here 11620 * is the relevant text, from SAM-3 rev 8: 11621 * 11622 * 5.7.2 When a SCSI initiator port aborts its own tasks 11623 * 11624 * When a SCSI initiator port causes its own task(s) to be aborted, no 11625 * notification that the task(s) have been aborted shall be returned to 11626 * the SCSI initiator port other than the completion response for the 11627 * command or task management function action that caused the task(s) to 11628 * be aborted and notification(s) associated with related effects of the 11629 * action (e.g., a reset unit attention condition). 11630 * 11631 * XXX KDM for now, we're setting unit attention for all initiators. 11632 */ 11633static void 11634ctl_do_lun_reset(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua_type) 11635{ 11636 union ctl_io *xio; 11637 int i; 11638 11639 mtx_lock(&lun->lun_lock); 11640 /* Abort tasks. */ 11641 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11642 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11643 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11644 ctl_try_unblock_io(lun, xio, FALSE); 11645 } 11646 /* Clear CA. */ 11647 for (i = 0; i < ctl_max_ports; i++) { 11648 free(lun->pending_sense[i], M_CTL); 11649 lun->pending_sense[i] = NULL; 11650 } 11651 /* Clear reservation. */ 11652 lun->flags &= ~CTL_LUN_RESERVED; 11653 /* Clear prevent media removal. */ 11654 if (lun->prevent) { 11655 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11656 ctl_clear_mask(lun->prevent, i); 11657 lun->prevent_count = 0; 11658 } 11659 /* Clear TPC status */ 11660 ctl_tpc_lun_clear(lun, -1); 11661 /* Establish UA. */ 11662#if 0 11663 ctl_est_ua_all(lun, initidx, ua_type); 11664#else 11665 ctl_est_ua_all(lun, -1, ua_type); 11666#endif 11667 mtx_unlock(&lun->lun_lock); 11668} 11669 11670static int 11671ctl_lun_reset(union ctl_io *io) 11672{ 11673 struct ctl_softc *softc = CTL_SOFTC(io); 11674 struct ctl_lun *lun; 11675 uint32_t targ_lun, initidx; 11676 11677 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11678 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11679 mtx_lock(&softc->ctl_lock); 11680 if (targ_lun >= ctl_max_luns || 11681 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11682 mtx_unlock(&softc->ctl_lock); 11683 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11684 return (1); 11685 } 11686 ctl_do_lun_reset(lun, initidx, CTL_UA_LUN_RESET); 11687 mtx_unlock(&softc->ctl_lock); 11688 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11689 11690 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0) { 11691 union ctl_ha_msg msg_info; 11692 11693 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11694 msg_info.hdr.nexus = io->io_hdr.nexus; 11695 msg_info.task.task_action = CTL_TASK_LUN_RESET; 11696 msg_info.hdr.original_sc = NULL; 11697 msg_info.hdr.serializing_sc = NULL; 11698 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11699 sizeof(msg_info.task), M_WAITOK); 11700 } 11701 return (0); 11702} 11703 11704static void 11705ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11706 int other_sc) 11707{ 11708 union ctl_io *xio; 11709 11710 mtx_assert(&lun->lun_lock, MA_OWNED); 11711 11712 /* 11713 * Run through the OOA queue and attempt to find the given I/O. 11714 * The target port, initiator ID, tag type and tag number have to 11715 * match the values that we got from the initiator. If we have an 11716 * untagged command to abort, simply abort the first untagged command 11717 * we come to. We only allow one untagged command at a time of course. 11718 */ 11719 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11720 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11721 11722 if ((targ_port == UINT32_MAX || 11723 targ_port == xio->io_hdr.nexus.targ_port) && 11724 (init_id == UINT32_MAX || 11725 init_id == xio->io_hdr.nexus.initid)) { 11726 if (targ_port != xio->io_hdr.nexus.targ_port || 11727 init_id != xio->io_hdr.nexus.initid) 11728 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11729 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11730 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11731 union ctl_ha_msg msg_info; 11732 11733 msg_info.hdr.nexus = xio->io_hdr.nexus; 11734 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11735 msg_info.task.tag_num = xio->scsiio.tag_num; 11736 msg_info.task.tag_type = xio->scsiio.tag_type; 11737 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11738 msg_info.hdr.original_sc = NULL; 11739 msg_info.hdr.serializing_sc = NULL; 11740 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11741 sizeof(msg_info.task), M_NOWAIT); 11742 } 11743 ctl_try_unblock_io(lun, xio, FALSE); 11744 } 11745 } 11746} 11747 11748static int 11749ctl_abort_task_set(union ctl_io *io) 11750{ 11751 struct ctl_softc *softc = CTL_SOFTC(io); 11752 struct ctl_lun *lun; 11753 uint32_t targ_lun; 11754 11755 /* 11756 * Look up the LUN. 11757 */ 11758 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11759 mtx_lock(&softc->ctl_lock); 11760 if (targ_lun >= ctl_max_luns || 11761 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11762 mtx_unlock(&softc->ctl_lock); 11763 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11764 return (1); 11765 } 11766 11767 mtx_lock(&lun->lun_lock); 11768 mtx_unlock(&softc->ctl_lock); 11769 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 11770 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11771 io->io_hdr.nexus.initid, 11772 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11773 } else { /* CTL_TASK_CLEAR_TASK_SET */ 11774 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 11775 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11776 } 11777 mtx_unlock(&lun->lun_lock); 11778 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11779 return (0); 11780} 11781 11782static void 11783ctl_i_t_nexus_loss(struct ctl_softc *softc, uint32_t initidx, 11784 ctl_ua_type ua_type) 11785{ 11786 struct ctl_lun *lun; 11787 struct scsi_sense_data *ps; 11788 uint32_t p, i; 11789 11790 p = initidx / CTL_MAX_INIT_PER_PORT; 11791 i = initidx % CTL_MAX_INIT_PER_PORT; 11792 mtx_lock(&softc->ctl_lock); 11793 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11794 mtx_lock(&lun->lun_lock); 11795 /* Abort tasks. */ 11796 ctl_abort_tasks_lun(lun, p, i, 1); 11797 /* Clear CA. */ 11798 ps = lun->pending_sense[p]; 11799 if (ps != NULL) 11800 ps[i].error_code = 0; 11801 /* Clear reservation. */ 11802 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == initidx)) 11803 lun->flags &= ~CTL_LUN_RESERVED; 11804 /* Clear prevent media removal. */ 11805 if (lun->prevent && ctl_is_set(lun->prevent, initidx)) { 11806 ctl_clear_mask(lun->prevent, initidx); 11807 lun->prevent_count--; 11808 } 11809 /* Clear TPC status */ 11810 ctl_tpc_lun_clear(lun, initidx); 11811 /* Establish UA. */ 11812 ctl_est_ua(lun, initidx, ua_type); 11813 mtx_unlock(&lun->lun_lock); 11814 } 11815 mtx_unlock(&softc->ctl_lock); 11816} 11817 11818static int 11819ctl_i_t_nexus_reset(union ctl_io *io) 11820{ 11821 struct ctl_softc *softc = CTL_SOFTC(io); 11822 uint32_t initidx; 11823 11824 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11825 union ctl_ha_msg msg_info; 11826 11827 msg_info.hdr.nexus = io->io_hdr.nexus; 11828 msg_info.task.task_action = CTL_TASK_I_T_NEXUS_RESET; 11829 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11830 msg_info.hdr.original_sc = NULL; 11831 msg_info.hdr.serializing_sc = NULL; 11832 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11833 sizeof(msg_info.task), M_WAITOK); 11834 } 11835 11836 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11837 ctl_i_t_nexus_loss(softc, initidx, CTL_UA_I_T_NEXUS_LOSS); 11838 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11839 return (0); 11840} 11841 11842static int 11843ctl_abort_task(union ctl_io *io) 11844{ 11845 struct ctl_softc *softc = CTL_SOFTC(io); 11846 union ctl_io *xio; 11847 struct ctl_lun *lun; 11848 uint32_t targ_lun; 11849 11850 /* 11851 * Look up the LUN. 11852 */ 11853 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11854 mtx_lock(&softc->ctl_lock); 11855 if (targ_lun >= ctl_max_luns || 11856 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11857 mtx_unlock(&softc->ctl_lock); 11858 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11859 return (1); 11860 } 11861 11862 mtx_lock(&lun->lun_lock); 11863 mtx_unlock(&softc->ctl_lock); 11864 /* 11865 * Run through the OOA queue and attempt to find the given I/O. 11866 * The target port, initiator ID, tag type and tag number have to 11867 * match the values that we got from the initiator. If we have an 11868 * untagged command to abort, simply abort the first untagged command 11869 * we come to. We only allow one untagged command at a time of course. 11870 */ 11871 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11872 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11873 11874 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 11875 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 11876 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 11877 continue; 11878 11879 /* 11880 * If the abort says that the task is untagged, the 11881 * task in the queue must be untagged. Otherwise, 11882 * we just check to see whether the tag numbers 11883 * match. This is because the QLogic firmware 11884 * doesn't pass back the tag type in an abort 11885 * request. 11886 */ 11887#if 0 11888 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 11889 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 11890 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 11891#else 11892 /* 11893 * XXX KDM we've got problems with FC, because it 11894 * doesn't send down a tag type with aborts. So we 11895 * can only really go by the tag number... 11896 * This may cause problems with parallel SCSI. 11897 * Need to figure that out!! 11898 */ 11899 if (xio->scsiio.tag_num == io->taskio.tag_num) { 11900#endif 11901 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11902 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0 && 11903 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11904 union ctl_ha_msg msg_info; 11905 11906 msg_info.hdr.nexus = io->io_hdr.nexus; 11907 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11908 msg_info.task.tag_num = io->taskio.tag_num; 11909 msg_info.task.tag_type = io->taskio.tag_type; 11910 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11911 msg_info.hdr.original_sc = NULL; 11912 msg_info.hdr.serializing_sc = NULL; 11913 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11914 sizeof(msg_info.task), M_NOWAIT); 11915 } 11916 ctl_try_unblock_io(lun, xio, FALSE); 11917 } 11918 } 11919 mtx_unlock(&lun->lun_lock); 11920 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11921 return (0); 11922} 11923 11924static int 11925ctl_query_task(union ctl_io *io, int task_set) 11926{ 11927 struct ctl_softc *softc = CTL_SOFTC(io); 11928 union ctl_io *xio; 11929 struct ctl_lun *lun; 11930 int found = 0; 11931 uint32_t targ_lun; 11932 11933 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11934 mtx_lock(&softc->ctl_lock); 11935 if (targ_lun >= ctl_max_luns || 11936 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11937 mtx_unlock(&softc->ctl_lock); 11938 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11939 return (1); 11940 } 11941 mtx_lock(&lun->lun_lock); 11942 mtx_unlock(&softc->ctl_lock); 11943 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11944 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11945 11946 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 11947 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 11948 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 11949 continue; 11950 11951 if (task_set || xio->scsiio.tag_num == io->taskio.tag_num) { 11952 found = 1; 11953 break; 11954 } 11955 } 11956 mtx_unlock(&lun->lun_lock); 11957 if (found) 11958 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 11959 else 11960 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11961 return (0); 11962} 11963 11964static int 11965ctl_query_async_event(union ctl_io *io) 11966{ 11967 struct ctl_softc *softc = CTL_SOFTC(io); 11968 struct ctl_lun *lun; 11969 ctl_ua_type ua; 11970 uint32_t targ_lun, initidx; 11971 11972 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11973 mtx_lock(&softc->ctl_lock); 11974 if (targ_lun >= ctl_max_luns || 11975 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11976 mtx_unlock(&softc->ctl_lock); 11977 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11978 return (1); 11979 } 11980 mtx_lock(&lun->lun_lock); 11981 mtx_unlock(&softc->ctl_lock); 11982 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11983 ua = ctl_build_qae(lun, initidx, io->taskio.task_resp); 11984 mtx_unlock(&lun->lun_lock); 11985 if (ua != CTL_UA_NONE) 11986 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 11987 else 11988 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11989 return (0); 11990} 11991 11992static void 11993ctl_run_task(union ctl_io *io) 11994{ 11995 int retval = 1; 11996 11997 CTL_DEBUG_PRINT(("ctl_run_task\n")); 11998 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 11999 ("ctl_run_task: Unextected io_type %d\n", io->io_hdr.io_type)); 12000 io->taskio.task_status = CTL_TASK_FUNCTION_NOT_SUPPORTED; 12001 bzero(io->taskio.task_resp, sizeof(io->taskio.task_resp)); 12002 switch (io->taskio.task_action) { 12003 case CTL_TASK_ABORT_TASK: 12004 retval = ctl_abort_task(io); 12005 break; 12006 case CTL_TASK_ABORT_TASK_SET: 12007 case CTL_TASK_CLEAR_TASK_SET: 12008 retval = ctl_abort_task_set(io); 12009 break; 12010 case CTL_TASK_CLEAR_ACA: 12011 break; 12012 case CTL_TASK_I_T_NEXUS_RESET: 12013 retval = ctl_i_t_nexus_reset(io); 12014 break; 12015 case CTL_TASK_LUN_RESET: 12016 retval = ctl_lun_reset(io); 12017 break; 12018 case CTL_TASK_TARGET_RESET: 12019 case CTL_TASK_BUS_RESET: 12020 retval = ctl_target_reset(io); 12021 break; 12022 case CTL_TASK_PORT_LOGIN: 12023 break; 12024 case CTL_TASK_PORT_LOGOUT: 12025 break; 12026 case CTL_TASK_QUERY_TASK: 12027 retval = ctl_query_task(io, 0); 12028 break; 12029 case CTL_TASK_QUERY_TASK_SET: 12030 retval = ctl_query_task(io, 1); 12031 break; 12032 case CTL_TASK_QUERY_ASYNC_EVENT: 12033 retval = ctl_query_async_event(io); 12034 break; 12035 default: 12036 printf("%s: got unknown task management event %d\n", 12037 __func__, io->taskio.task_action); 12038 break; 12039 } 12040 if (retval == 0) 12041 io->io_hdr.status = CTL_SUCCESS; 12042 else 12043 io->io_hdr.status = CTL_ERROR; 12044 ctl_done(io); 12045} 12046 12047/* 12048 * For HA operation. Handle commands that come in from the other 12049 * controller. 12050 */ 12051static void 12052ctl_handle_isc(union ctl_io *io) 12053{ 12054 struct ctl_softc *softc = CTL_SOFTC(io); 12055 struct ctl_lun *lun; 12056 const struct ctl_cmd_entry *entry; 12057 uint32_t targ_lun; 12058 12059 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12060 switch (io->io_hdr.msg_type) { 12061 case CTL_MSG_SERIALIZE: 12062 ctl_serialize_other_sc_cmd(&io->scsiio); 12063 break; 12064 case CTL_MSG_R2R: /* Only used in SER_ONLY mode. */ 12065 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12066 if (targ_lun >= ctl_max_luns || 12067 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12068 ctl_done(io); 12069 break; 12070 } 12071 mtx_lock(&lun->lun_lock); 12072 if (ctl_scsiio_lun_check(lun, entry, &io->scsiio) != 0) { 12073 mtx_unlock(&lun->lun_lock); 12074 ctl_done(io); 12075 break; 12076 } 12077 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12078 mtx_unlock(&lun->lun_lock); 12079 ctl_enqueue_rtr(io); 12080 break; 12081 case CTL_MSG_FINISH_IO: 12082 if (softc->ha_mode == CTL_HA_MODE_XFER) { 12083 ctl_done(io); 12084 break; 12085 } 12086 if (targ_lun >= ctl_max_luns || 12087 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12088 ctl_free_io(io); 12089 break; 12090 } 12091 mtx_lock(&lun->lun_lock); 12092 ctl_try_unblock_others(lun, io, TRUE); 12093 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 12094 mtx_unlock(&lun->lun_lock); 12095 ctl_free_io(io); 12096 break; 12097 case CTL_MSG_PERS_ACTION: 12098 ctl_hndl_per_res_out_on_other_sc(io); 12099 ctl_free_io(io); 12100 break; 12101 case CTL_MSG_BAD_JUJU: 12102 ctl_done(io); 12103 break; 12104 case CTL_MSG_DATAMOVE: /* Only used in XFER mode */ 12105 ctl_datamove_remote(io); 12106 break; 12107 case CTL_MSG_DATAMOVE_DONE: /* Only used in XFER mode */ 12108 io->scsiio.be_move_done(io); 12109 break; 12110 case CTL_MSG_FAILOVER: 12111 ctl_failover_lun(io); 12112 ctl_free_io(io); 12113 break; 12114 default: 12115 printf("%s: Invalid message type %d\n", 12116 __func__, io->io_hdr.msg_type); 12117 ctl_free_io(io); 12118 break; 12119 } 12120 12121} 12122 12123 12124/* 12125 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12126 * there is no match. 12127 */ 12128static ctl_lun_error_pattern 12129ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12130{ 12131 const struct ctl_cmd_entry *entry; 12132 ctl_lun_error_pattern filtered_pattern, pattern; 12133 12134 pattern = desc->error_pattern; 12135 12136 /* 12137 * XXX KDM we need more data passed into this function to match a 12138 * custom pattern, and we actually need to implement custom pattern 12139 * matching. 12140 */ 12141 if (pattern & CTL_LUN_PAT_CMD) 12142 return (CTL_LUN_PAT_CMD); 12143 12144 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12145 return (CTL_LUN_PAT_ANY); 12146 12147 entry = ctl_get_cmd_entry(ctsio, NULL); 12148 12149 filtered_pattern = entry->pattern & pattern; 12150 12151 /* 12152 * If the user requested specific flags in the pattern (e.g. 12153 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12154 * flags. 12155 * 12156 * If the user did not specify any flags, it doesn't matter whether 12157 * or not the command supports the flags. 12158 */ 12159 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12160 (pattern & ~CTL_LUN_PAT_MASK)) 12161 return (CTL_LUN_PAT_NONE); 12162 12163 /* 12164 * If the user asked for a range check, see if the requested LBA 12165 * range overlaps with this command's LBA range. 12166 */ 12167 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12168 uint64_t lba1; 12169 uint64_t len1; 12170 ctl_action action; 12171 int retval; 12172 12173 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12174 if (retval != 0) 12175 return (CTL_LUN_PAT_NONE); 12176 12177 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12178 desc->lba_range.len, FALSE); 12179 /* 12180 * A "pass" means that the LBA ranges don't overlap, so 12181 * this doesn't match the user's range criteria. 12182 */ 12183 if (action == CTL_ACTION_PASS) 12184 return (CTL_LUN_PAT_NONE); 12185 } 12186 12187 return (filtered_pattern); 12188} 12189 12190static void 12191ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12192{ 12193 struct ctl_error_desc *desc, *desc2; 12194 12195 mtx_assert(&lun->lun_lock, MA_OWNED); 12196 12197 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12198 ctl_lun_error_pattern pattern; 12199 /* 12200 * Check to see whether this particular command matches 12201 * the pattern in the descriptor. 12202 */ 12203 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12204 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12205 continue; 12206 12207 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12208 case CTL_LUN_INJ_ABORTED: 12209 ctl_set_aborted(&io->scsiio); 12210 break; 12211 case CTL_LUN_INJ_MEDIUM_ERR: 12212 ctl_set_medium_error(&io->scsiio, 12213 (io->io_hdr.flags & CTL_FLAG_DATA_MASK) != 12214 CTL_FLAG_DATA_OUT); 12215 break; 12216 case CTL_LUN_INJ_UA: 12217 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12218 * OCCURRED */ 12219 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12220 break; 12221 case CTL_LUN_INJ_CUSTOM: 12222 /* 12223 * We're assuming the user knows what he is doing. 12224 * Just copy the sense information without doing 12225 * checks. 12226 */ 12227 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12228 MIN(sizeof(desc->custom_sense), 12229 sizeof(io->scsiio.sense_data))); 12230 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12231 io->scsiio.sense_len = SSD_FULL_SIZE; 12232 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12233 break; 12234 case CTL_LUN_INJ_NONE: 12235 default: 12236 /* 12237 * If this is an error injection type we don't know 12238 * about, clear the continuous flag (if it is set) 12239 * so it will get deleted below. 12240 */ 12241 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12242 break; 12243 } 12244 /* 12245 * By default, each error injection action is a one-shot 12246 */ 12247 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12248 continue; 12249 12250 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12251 12252 free(desc, M_CTL); 12253 } 12254} 12255 12256#ifdef CTL_IO_DELAY 12257static void 12258ctl_datamove_timer_wakeup(void *arg) 12259{ 12260 union ctl_io *io; 12261 12262 io = (union ctl_io *)arg; 12263 12264 ctl_datamove(io); 12265} 12266#endif /* CTL_IO_DELAY */ 12267 12268void 12269ctl_datamove(union ctl_io *io) 12270{ 12271 void (*fe_datamove)(union ctl_io *io); 12272 12273 mtx_assert(&((struct ctl_softc *)CTL_SOFTC(io))->ctl_lock, MA_NOTOWNED); 12274 12275 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12276 12277 /* No data transferred yet. Frontend must update this when done. */ 12278 io->scsiio.kern_data_resid = io->scsiio.kern_data_len; 12279 12280#ifdef CTL_TIME_IO 12281 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12282 char str[256]; 12283 char path_str[64]; 12284 struct sbuf sb; 12285 12286 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12287 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12288 12289 sbuf_cat(&sb, path_str); 12290 switch (io->io_hdr.io_type) { 12291 case CTL_IO_SCSI: 12292 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12293 sbuf_printf(&sb, "\n"); 12294 sbuf_cat(&sb, path_str); 12295 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12296 io->scsiio.tag_num, io->scsiio.tag_type); 12297 break; 12298 case CTL_IO_TASK: 12299 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12300 "Tag Type: %d\n", io->taskio.task_action, 12301 io->taskio.tag_num, io->taskio.tag_type); 12302 break; 12303 default: 12304 panic("%s: Invalid CTL I/O type %d\n", 12305 __func__, io->io_hdr.io_type); 12306 } 12307 sbuf_cat(&sb, path_str); 12308 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12309 (intmax_t)time_uptime - io->io_hdr.start_time); 12310 sbuf_finish(&sb); 12311 printf("%s", sbuf_data(&sb)); 12312 } 12313#endif /* CTL_TIME_IO */ 12314 12315#ifdef CTL_IO_DELAY 12316 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12317 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12318 } else { 12319 struct ctl_lun *lun; 12320 12321 lun = CTL_LUN(io); 12322 if ((lun != NULL) 12323 && (lun->delay_info.datamove_delay > 0)) { 12324 12325 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 12326 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12327 callout_reset(&io->io_hdr.delay_callout, 12328 lun->delay_info.datamove_delay * hz, 12329 ctl_datamove_timer_wakeup, io); 12330 if (lun->delay_info.datamove_type == 12331 CTL_DELAY_TYPE_ONESHOT) 12332 lun->delay_info.datamove_delay = 0; 12333 return; 12334 } 12335 } 12336#endif 12337 12338 /* 12339 * This command has been aborted. Set the port status, so we fail 12340 * the data move. 12341 */ 12342 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12343 printf("ctl_datamove: tag 0x%04x on (%u:%u:%u) aborted\n", 12344 io->scsiio.tag_num, io->io_hdr.nexus.initid, 12345 io->io_hdr.nexus.targ_port, 12346 io->io_hdr.nexus.targ_lun); 12347 io->io_hdr.port_status = 31337; 12348 /* 12349 * Note that the backend, in this case, will get the 12350 * callback in its context. In other cases it may get 12351 * called in the frontend's interrupt thread context. 12352 */ 12353 io->scsiio.be_move_done(io); 12354 return; 12355 } 12356 12357 /* Don't confuse frontend with zero length data move. */ 12358 if (io->scsiio.kern_data_len == 0) { 12359 io->scsiio.be_move_done(io); 12360 return; 12361 } 12362 12363 fe_datamove = CTL_PORT(io)->fe_datamove; 12364 fe_datamove(io); 12365} 12366 12367static void 12368ctl_send_datamove_done(union ctl_io *io, int have_lock) 12369{ 12370 union ctl_ha_msg msg; 12371#ifdef CTL_TIME_IO 12372 struct bintime cur_bt; 12373#endif 12374 12375 memset(&msg, 0, sizeof(msg)); 12376 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12377 msg.hdr.original_sc = io; 12378 msg.hdr.serializing_sc = io->io_hdr.remote_io; 12379 msg.hdr.nexus = io->io_hdr.nexus; 12380 msg.hdr.status = io->io_hdr.status; 12381 msg.scsi.kern_data_resid = io->scsiio.kern_data_resid; 12382 msg.scsi.tag_num = io->scsiio.tag_num; 12383 msg.scsi.tag_type = io->scsiio.tag_type; 12384 msg.scsi.scsi_status = io->scsiio.scsi_status; 12385 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12386 io->scsiio.sense_len); 12387 msg.scsi.sense_len = io->scsiio.sense_len; 12388 msg.scsi.port_status = io->io_hdr.port_status; 12389 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12390 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12391 ctl_failover_io(io, /*have_lock*/ have_lock); 12392 return; 12393 } 12394 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12395 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 12396 msg.scsi.sense_len, M_WAITOK); 12397 12398#ifdef CTL_TIME_IO 12399 getbinuptime(&cur_bt); 12400 bintime_sub(&cur_bt, &io->io_hdr.dma_start_bt); 12401 bintime_add(&io->io_hdr.dma_bt, &cur_bt); 12402#endif 12403 io->io_hdr.num_dmas++; 12404} 12405 12406/* 12407 * The DMA to the remote side is done, now we need to tell the other side 12408 * we're done so it can continue with its data movement. 12409 */ 12410static void 12411ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12412{ 12413 union ctl_io *io; 12414 uint32_t i; 12415 12416 io = rq->context; 12417 12418 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12419 printf("%s: ISC DMA write failed with error %d", __func__, 12420 rq->ret); 12421 ctl_set_internal_failure(&io->scsiio, 12422 /*sks_valid*/ 1, 12423 /*retry_count*/ rq->ret); 12424 } 12425 12426 ctl_dt_req_free(rq); 12427 12428 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12429 free(CTL_LSGLT(io)[i].addr, M_CTL); 12430 free(CTL_RSGL(io), M_CTL); 12431 CTL_RSGL(io) = NULL; 12432 CTL_LSGL(io) = NULL; 12433 12434 /* 12435 * The data is in local and remote memory, so now we need to send 12436 * status (good or back) back to the other side. 12437 */ 12438 ctl_send_datamove_done(io, /*have_lock*/ 0); 12439} 12440 12441/* 12442 * We've moved the data from the host/controller into local memory. Now we 12443 * need to push it over to the remote controller's memory. 12444 */ 12445static int 12446ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12447{ 12448 int retval; 12449 12450 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12451 ctl_datamove_remote_write_cb); 12452 return (retval); 12453} 12454 12455static void 12456ctl_datamove_remote_write(union ctl_io *io) 12457{ 12458 int retval; 12459 void (*fe_datamove)(union ctl_io *io); 12460 12461 /* 12462 * - Get the data from the host/HBA into local memory. 12463 * - DMA memory from the local controller to the remote controller. 12464 * - Send status back to the remote controller. 12465 */ 12466 12467 retval = ctl_datamove_remote_sgl_setup(io); 12468 if (retval != 0) 12469 return; 12470 12471 /* Switch the pointer over so the FETD knows what to do */ 12472 io->scsiio.kern_data_ptr = (uint8_t *)CTL_LSGL(io); 12473 12474 /* 12475 * Use a custom move done callback, since we need to send completion 12476 * back to the other controller, not to the backend on this side. 12477 */ 12478 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12479 12480 fe_datamove = CTL_PORT(io)->fe_datamove; 12481 fe_datamove(io); 12482} 12483 12484static int 12485ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12486{ 12487 uint32_t i; 12488 12489 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12490 free(CTL_LSGLT(io)[i].addr, M_CTL); 12491 free(CTL_RSGL(io), M_CTL); 12492 CTL_RSGL(io) = NULL; 12493 CTL_LSGL(io) = NULL; 12494 12495 /* 12496 * The read is done, now we need to send status (good or bad) back 12497 * to the other side. 12498 */ 12499 ctl_send_datamove_done(io, /*have_lock*/ 0); 12500 12501 return (0); 12502} 12503 12504static void 12505ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12506{ 12507 union ctl_io *io; 12508 void (*fe_datamove)(union ctl_io *io); 12509 12510 io = rq->context; 12511 12512 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12513 printf("%s: ISC DMA read failed with error %d\n", __func__, 12514 rq->ret); 12515 ctl_set_internal_failure(&io->scsiio, 12516 /*sks_valid*/ 1, 12517 /*retry_count*/ rq->ret); 12518 } 12519 12520 ctl_dt_req_free(rq); 12521 12522 /* Switch the pointer over so the FETD knows what to do */ 12523 io->scsiio.kern_data_ptr = (uint8_t *)CTL_LSGL(io); 12524 12525 /* 12526 * Use a custom move done callback, since we need to send completion 12527 * back to the other controller, not to the backend on this side. 12528 */ 12529 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12530 12531 /* XXX KDM add checks like the ones in ctl_datamove? */ 12532 12533 fe_datamove = CTL_PORT(io)->fe_datamove; 12534 fe_datamove(io); 12535} 12536 12537static int 12538ctl_datamove_remote_sgl_setup(union ctl_io *io) 12539{ 12540 struct ctl_sg_entry *local_sglist; 12541 uint32_t len_to_go; 12542 int retval; 12543 int i; 12544 12545 retval = 0; 12546 local_sglist = CTL_LSGL(io); 12547 len_to_go = io->scsiio.kern_data_len; 12548 12549 /* 12550 * The difficult thing here is that the size of the various 12551 * S/G segments may be different than the size from the 12552 * remote controller. That'll make it harder when DMAing 12553 * the data back to the other side. 12554 */ 12555 for (i = 0; len_to_go > 0; i++) { 12556 local_sglist[i].len = MIN(len_to_go, CTL_HA_DATAMOVE_SEGMENT); 12557 local_sglist[i].addr = 12558 malloc(local_sglist[i].len, M_CTL, M_WAITOK); 12559 12560 len_to_go -= local_sglist[i].len; 12561 } 12562 /* 12563 * Reset the number of S/G entries accordingly. The original 12564 * number of S/G entries is available in rem_sg_entries. 12565 */ 12566 io->scsiio.kern_sg_entries = i; 12567 12568 return (retval); 12569} 12570 12571static int 12572ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 12573 ctl_ha_dt_cb callback) 12574{ 12575 struct ctl_ha_dt_req *rq; 12576 struct ctl_sg_entry *remote_sglist, *local_sglist; 12577 uint32_t local_used, remote_used, total_used; 12578 int i, j, isc_ret; 12579 12580 rq = ctl_dt_req_alloc(); 12581 12582 /* 12583 * If we failed to allocate the request, and if the DMA didn't fail 12584 * anyway, set busy status. This is just a resource allocation 12585 * failure. 12586 */ 12587 if ((rq == NULL) 12588 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12589 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) 12590 ctl_set_busy(&io->scsiio); 12591 12592 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12593 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) { 12594 12595 if (rq != NULL) 12596 ctl_dt_req_free(rq); 12597 12598 /* 12599 * The data move failed. We need to return status back 12600 * to the other controller. No point in trying to DMA 12601 * data to the remote controller. 12602 */ 12603 12604 ctl_send_datamove_done(io, /*have_lock*/ 0); 12605 12606 return (1); 12607 } 12608 12609 local_sglist = CTL_LSGL(io); 12610 remote_sglist = CTL_RSGL(io); 12611 local_used = 0; 12612 remote_used = 0; 12613 total_used = 0; 12614 12615 /* 12616 * Pull/push the data over the wire from/to the other controller. 12617 * This takes into account the possibility that the local and 12618 * remote sglists may not be identical in terms of the size of 12619 * the elements and the number of elements. 12620 * 12621 * One fundamental assumption here is that the length allocated for 12622 * both the local and remote sglists is identical. Otherwise, we've 12623 * essentially got a coding error of some sort. 12624 */ 12625 isc_ret = CTL_HA_STATUS_SUCCESS; 12626 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 12627 uint32_t cur_len; 12628 uint8_t *tmp_ptr; 12629 12630 rq->command = command; 12631 rq->context = io; 12632 12633 /* 12634 * Both pointers should be aligned. But it is possible 12635 * that the allocation length is not. They should both 12636 * also have enough slack left over at the end, though, 12637 * to round up to the next 8 byte boundary. 12638 */ 12639 cur_len = MIN(local_sglist[i].len - local_used, 12640 remote_sglist[j].len - remote_used); 12641 rq->size = cur_len; 12642 12643 tmp_ptr = (uint8_t *)local_sglist[i].addr; 12644 tmp_ptr += local_used; 12645 12646#if 0 12647 /* Use physical addresses when talking to ISC hardware */ 12648 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 12649 /* XXX KDM use busdma */ 12650 rq->local = vtophys(tmp_ptr); 12651 } else 12652 rq->local = tmp_ptr; 12653#else 12654 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 12655 ("HA does not support BUS_ADDR")); 12656 rq->local = tmp_ptr; 12657#endif 12658 12659 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 12660 tmp_ptr += remote_used; 12661 rq->remote = tmp_ptr; 12662 12663 rq->callback = NULL; 12664 12665 local_used += cur_len; 12666 if (local_used >= local_sglist[i].len) { 12667 i++; 12668 local_used = 0; 12669 } 12670 12671 remote_used += cur_len; 12672 if (remote_used >= remote_sglist[j].len) { 12673 j++; 12674 remote_used = 0; 12675 } 12676 total_used += cur_len; 12677 12678 if (total_used >= io->scsiio.kern_data_len) 12679 rq->callback = callback; 12680 12681 isc_ret = ctl_dt_single(rq); 12682 if (isc_ret > CTL_HA_STATUS_SUCCESS) 12683 break; 12684 } 12685 if (isc_ret != CTL_HA_STATUS_WAIT) { 12686 rq->ret = isc_ret; 12687 callback(rq); 12688 } 12689 12690 return (0); 12691} 12692 12693static void 12694ctl_datamove_remote_read(union ctl_io *io) 12695{ 12696 int retval; 12697 uint32_t i; 12698 12699 /* 12700 * This will send an error to the other controller in the case of a 12701 * failure. 12702 */ 12703 retval = ctl_datamove_remote_sgl_setup(io); 12704 if (retval != 0) 12705 return; 12706 12707 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 12708 ctl_datamove_remote_read_cb); 12709 if (retval != 0) { 12710 /* 12711 * Make sure we free memory if there was an error.. The 12712 * ctl_datamove_remote_xfer() function will send the 12713 * datamove done message, or call the callback with an 12714 * error if there is a problem. 12715 */ 12716 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12717 free(CTL_LSGLT(io)[i].addr, M_CTL); 12718 free(CTL_RSGL(io), M_CTL); 12719 CTL_RSGL(io) = NULL; 12720 CTL_LSGL(io) = NULL; 12721 } 12722} 12723 12724/* 12725 * Process a datamove request from the other controller. This is used for 12726 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 12727 * first. Once that is complete, the data gets DMAed into the remote 12728 * controller's memory. For reads, we DMA from the remote controller's 12729 * memory into our memory first, and then move it out to the FETD. 12730 */ 12731static void 12732ctl_datamove_remote(union ctl_io *io) 12733{ 12734 12735 mtx_assert(&((struct ctl_softc *)CTL_SOFTC(io))->ctl_lock, MA_NOTOWNED); 12736 12737 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12738 ctl_failover_io(io, /*have_lock*/ 0); 12739 return; 12740 } 12741 12742 /* 12743 * Note that we look for an aborted I/O here, but don't do some of 12744 * the other checks that ctl_datamove() normally does. 12745 * We don't need to run the datamove delay code, since that should 12746 * have been done if need be on the other controller. 12747 */ 12748 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12749 printf("%s: tag 0x%04x on (%u:%u:%u) aborted\n", __func__, 12750 io->scsiio.tag_num, io->io_hdr.nexus.initid, 12751 io->io_hdr.nexus.targ_port, 12752 io->io_hdr.nexus.targ_lun); 12753 io->io_hdr.port_status = 31338; 12754 ctl_send_datamove_done(io, /*have_lock*/ 0); 12755 return; 12756 } 12757 12758 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 12759 ctl_datamove_remote_write(io); 12760 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 12761 ctl_datamove_remote_read(io); 12762 else { 12763 io->io_hdr.port_status = 31339; 12764 ctl_send_datamove_done(io, /*have_lock*/ 0); 12765 } 12766} 12767 12768static void 12769ctl_process_done(union ctl_io *io) 12770{ 12771 struct ctl_softc *softc = CTL_SOFTC(io); 12772 struct ctl_port *port = CTL_PORT(io); 12773 struct ctl_lun *lun = CTL_LUN(io); 12774 void (*fe_done)(union ctl_io *io); 12775 union ctl_ha_msg msg; 12776 12777 CTL_DEBUG_PRINT(("ctl_process_done\n")); 12778 fe_done = port->fe_done; 12779 12780#ifdef CTL_TIME_IO 12781 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12782 char str[256]; 12783 char path_str[64]; 12784 struct sbuf sb; 12785 12786 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12787 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12788 12789 sbuf_cat(&sb, path_str); 12790 switch (io->io_hdr.io_type) { 12791 case CTL_IO_SCSI: 12792 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12793 sbuf_printf(&sb, "\n"); 12794 sbuf_cat(&sb, path_str); 12795 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12796 io->scsiio.tag_num, io->scsiio.tag_type); 12797 break; 12798 case CTL_IO_TASK: 12799 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12800 "Tag Type: %d\n", io->taskio.task_action, 12801 io->taskio.tag_num, io->taskio.tag_type); 12802 break; 12803 default: 12804 panic("%s: Invalid CTL I/O type %d\n", 12805 __func__, io->io_hdr.io_type); 12806 } 12807 sbuf_cat(&sb, path_str); 12808 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 12809 (intmax_t)time_uptime - io->io_hdr.start_time); 12810 sbuf_finish(&sb); 12811 printf("%s", sbuf_data(&sb)); 12812 } 12813#endif /* CTL_TIME_IO */ 12814 12815 switch (io->io_hdr.io_type) { 12816 case CTL_IO_SCSI: 12817 break; 12818 case CTL_IO_TASK: 12819 if (ctl_debug & CTL_DEBUG_INFO) 12820 ctl_io_error_print(io, NULL); 12821 fe_done(io); 12822 return; 12823 default: 12824 panic("%s: Invalid CTL I/O type %d\n", 12825 __func__, io->io_hdr.io_type); 12826 } 12827 12828 if (lun == NULL) { 12829 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 12830 io->io_hdr.nexus.targ_mapped_lun)); 12831 goto bailout; 12832 } 12833 12834 mtx_lock(&lun->lun_lock); 12835 12836 /* 12837 * Check to see if we have any informational exception and status 12838 * of this command can be modified to report it in form of either 12839 * RECOVERED ERROR or NO SENSE, depending on MRIE mode page field. 12840 */ 12841 if (lun->ie_reported == 0 && lun->ie_asc != 0 && 12842 io->io_hdr.status == CTL_SUCCESS && 12843 (io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0) { 12844 uint8_t mrie = lun->MODE_IE.mrie; 12845 uint8_t per = ((lun->MODE_RWER.byte3 & SMS_RWER_PER) || 12846 (lun->MODE_VER.byte3 & SMS_VER_PER)); 12847 if (((mrie == SIEP_MRIE_REC_COND && per) || 12848 mrie == SIEP_MRIE_REC_UNCOND || 12849 mrie == SIEP_MRIE_NO_SENSE) && 12850 (ctl_get_cmd_entry(&io->scsiio, NULL)->flags & 12851 CTL_CMD_FLAG_NO_SENSE) == 0) { 12852 ctl_set_sense(&io->scsiio, 12853 /*current_error*/ 1, 12854 /*sense_key*/ (mrie == SIEP_MRIE_NO_SENSE) ? 12855 SSD_KEY_NO_SENSE : SSD_KEY_RECOVERED_ERROR, 12856 /*asc*/ lun->ie_asc, 12857 /*ascq*/ lun->ie_ascq, 12858 SSD_ELEM_NONE); 12859 lun->ie_reported = 1; 12860 } 12861 } else if (lun->ie_reported < 0) 12862 lun->ie_reported = 0; 12863 12864 /* 12865 * Check to see if we have any errors to inject here. We only 12866 * inject errors for commands that don't already have errors set. 12867 */ 12868 if (!STAILQ_EMPTY(&lun->error_list) && 12869 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 12870 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 12871 ctl_inject_error(lun, io); 12872 12873 /* 12874 * XXX KDM how do we treat commands that aren't completed 12875 * successfully? 12876 * 12877 * XXX KDM should we also track I/O latency? 12878 */ 12879 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 12880 io->io_hdr.io_type == CTL_IO_SCSI) { 12881 int type; 12882#ifdef CTL_TIME_IO 12883 struct bintime bt; 12884 12885 getbinuptime(&bt); 12886 bintime_sub(&bt, &io->io_hdr.start_bt); 12887#endif 12888 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 12889 CTL_FLAG_DATA_IN) 12890 type = CTL_STATS_READ; 12891 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 12892 CTL_FLAG_DATA_OUT) 12893 type = CTL_STATS_WRITE; 12894 else 12895 type = CTL_STATS_NO_IO; 12896 12897#ifdef CTL_LEGACY_STATS 12898 uint32_t targ_port = port->targ_port; 12899 lun->legacy_stats.ports[targ_port].bytes[type] += 12900 io->scsiio.kern_total_len; 12901 lun->legacy_stats.ports[targ_port].operations[type] ++; 12902 lun->legacy_stats.ports[targ_port].num_dmas[type] += 12903 io->io_hdr.num_dmas; 12904#ifdef CTL_TIME_IO 12905 bintime_add(&lun->legacy_stats.ports[targ_port].dma_time[type], 12906 &io->io_hdr.dma_bt); 12907 bintime_add(&lun->legacy_stats.ports[targ_port].time[type], 12908 &bt); 12909#endif 12910#endif /* CTL_LEGACY_STATS */ 12911 12912 lun->stats.bytes[type] += io->scsiio.kern_total_len; 12913 lun->stats.operations[type] ++; 12914 lun->stats.dmas[type] += io->io_hdr.num_dmas; 12915#ifdef CTL_TIME_IO 12916 bintime_add(&lun->stats.dma_time[type], &io->io_hdr.dma_bt); 12917 bintime_add(&lun->stats.time[type], &bt); 12918#endif 12919 12920 mtx_lock(&port->port_lock); 12921 port->stats.bytes[type] += io->scsiio.kern_total_len; 12922 port->stats.operations[type] ++; 12923 port->stats.dmas[type] += io->io_hdr.num_dmas; 12924#ifdef CTL_TIME_IO 12925 bintime_add(&port->stats.dma_time[type], &io->io_hdr.dma_bt); 12926 bintime_add(&port->stats.time[type], &bt); 12927#endif 12928 mtx_unlock(&port->port_lock); 12929 } 12930 12931 /* 12932 * Run through the blocked queue of this I/O and see if anything 12933 * can be unblocked, now that this I/O is done and will be removed. 12934 * We need to do it before removal to have OOA position to start. 12935 */ 12936 ctl_try_unblock_others(lun, io, TRUE); 12937 12938 /* 12939 * Remove this from the OOA queue. 12940 */ 12941 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 12942#ifdef CTL_TIME_IO 12943 if (TAILQ_EMPTY(&lun->ooa_queue)) 12944 lun->last_busy = getsbinuptime(); 12945#endif 12946 12947 /* 12948 * If the LUN has been invalidated, free it if there is nothing 12949 * left on its OOA queue. 12950 */ 12951 if ((lun->flags & CTL_LUN_INVALID) 12952 && TAILQ_EMPTY(&lun->ooa_queue)) { 12953 mtx_unlock(&lun->lun_lock); 12954 ctl_free_lun(lun); 12955 } else 12956 mtx_unlock(&lun->lun_lock); 12957 12958bailout: 12959 12960 /* 12961 * If this command has been aborted, make sure we set the status 12962 * properly. The FETD is responsible for freeing the I/O and doing 12963 * whatever it needs to do to clean up its state. 12964 */ 12965 if (io->io_hdr.flags & CTL_FLAG_ABORT) 12966 ctl_set_task_aborted(&io->scsiio); 12967 12968 /* 12969 * If enabled, print command error status. 12970 */ 12971 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS && 12972 (ctl_debug & CTL_DEBUG_INFO) != 0) 12973 ctl_io_error_print(io, NULL); 12974 12975 /* 12976 * Tell the FETD or the other shelf controller we're done with this 12977 * command. Note that only SCSI commands get to this point. Task 12978 * management commands are completed above. 12979 */ 12980 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 12981 (io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC)) { 12982 memset(&msg, 0, sizeof(msg)); 12983 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 12984 msg.hdr.serializing_sc = io->io_hdr.remote_io; 12985 msg.hdr.nexus = io->io_hdr.nexus; 12986 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12987 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data), 12988 M_WAITOK); 12989 } 12990 12991 fe_done(io); 12992} 12993 12994/* 12995 * Front end should call this if it doesn't do autosense. When the request 12996 * sense comes back in from the initiator, we'll dequeue this and send it. 12997 */ 12998int 12999ctl_queue_sense(union ctl_io *io) 13000{ 13001 struct ctl_softc *softc = CTL_SOFTC(io); 13002 struct ctl_port *port = CTL_PORT(io); 13003 struct ctl_lun *lun; 13004 struct scsi_sense_data *ps; 13005 uint32_t initidx, p, targ_lun; 13006 13007 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13008 13009 targ_lun = ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13010 13011 /* 13012 * LUN lookup will likely move to the ctl_work_thread() once we 13013 * have our new queueing infrastructure (that doesn't put things on 13014 * a per-LUN queue initially). That is so that we can handle 13015 * things like an INQUIRY to a LUN that we don't have enabled. We 13016 * can't deal with that right now. 13017 * If we don't have a LUN for this, just toss the sense information. 13018 */ 13019 mtx_lock(&softc->ctl_lock); 13020 if (targ_lun >= ctl_max_luns || 13021 (lun = softc->ctl_luns[targ_lun]) == NULL) { 13022 mtx_unlock(&softc->ctl_lock); 13023 goto bailout; 13024 } 13025 mtx_lock(&lun->lun_lock); 13026 mtx_unlock(&softc->ctl_lock); 13027 13028 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13029 p = initidx / CTL_MAX_INIT_PER_PORT; 13030 if (lun->pending_sense[p] == NULL) { 13031 lun->pending_sense[p] = malloc(sizeof(*ps) * CTL_MAX_INIT_PER_PORT, 13032 M_CTL, M_NOWAIT | M_ZERO); 13033 } 13034 if ((ps = lun->pending_sense[p]) != NULL) { 13035 ps += initidx % CTL_MAX_INIT_PER_PORT; 13036 memset(ps, 0, sizeof(*ps)); 13037 memcpy(ps, &io->scsiio.sense_data, io->scsiio.sense_len); 13038 } 13039 mtx_unlock(&lun->lun_lock); 13040 13041bailout: 13042 ctl_free_io(io); 13043 return (CTL_RETVAL_COMPLETE); 13044} 13045 13046/* 13047 * Primary command inlet from frontend ports. All SCSI and task I/O 13048 * requests must go through this function. 13049 */ 13050int 13051ctl_queue(union ctl_io *io) 13052{ 13053 struct ctl_port *port = CTL_PORT(io); 13054 13055 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13056 13057#ifdef CTL_TIME_IO 13058 io->io_hdr.start_time = time_uptime; 13059 getbinuptime(&io->io_hdr.start_bt); 13060#endif /* CTL_TIME_IO */ 13061 13062 /* Map FE-specific LUN ID into global one. */ 13063 io->io_hdr.nexus.targ_mapped_lun = 13064 ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13065 13066 switch (io->io_hdr.io_type) { 13067 case CTL_IO_SCSI: 13068 case CTL_IO_TASK: 13069 if (ctl_debug & CTL_DEBUG_CDB) 13070 ctl_io_print(io); 13071 ctl_enqueue_incoming(io); 13072 break; 13073 default: 13074 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13075 return (EINVAL); 13076 } 13077 13078 return (CTL_RETVAL_COMPLETE); 13079} 13080 13081#ifdef CTL_IO_DELAY 13082static void 13083ctl_done_timer_wakeup(void *arg) 13084{ 13085 union ctl_io *io; 13086 13087 io = (union ctl_io *)arg; 13088 ctl_done(io); 13089} 13090#endif /* CTL_IO_DELAY */ 13091 13092void 13093ctl_serseq_done(union ctl_io *io) 13094{ 13095 struct ctl_lun *lun = CTL_LUN(io);; 13096 13097 if (lun->be_lun == NULL || 13098 lun->be_lun->serseq == CTL_LUN_SERSEQ_OFF) 13099 return; 13100 mtx_lock(&lun->lun_lock); 13101 io->io_hdr.flags |= CTL_FLAG_SERSEQ_DONE; 13102 ctl_try_unblock_others(lun, io, FALSE); 13103 mtx_unlock(&lun->lun_lock); 13104} 13105 13106void 13107ctl_done(union ctl_io *io) 13108{ 13109 13110 /* 13111 * Enable this to catch duplicate completion issues. 13112 */ 13113#if 0 13114 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13115 printf("%s: type %d msg %d cdb %x iptl: " 13116 "%u:%u:%u tag 0x%04x " 13117 "flag %#x status %x\n", 13118 __func__, 13119 io->io_hdr.io_type, 13120 io->io_hdr.msg_type, 13121 io->scsiio.cdb[0], 13122 io->io_hdr.nexus.initid, 13123 io->io_hdr.nexus.targ_port, 13124 io->io_hdr.nexus.targ_lun, 13125 (io->io_hdr.io_type == 13126 CTL_IO_TASK) ? 13127 io->taskio.tag_num : 13128 io->scsiio.tag_num, 13129 io->io_hdr.flags, 13130 io->io_hdr.status); 13131 } else 13132 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13133#endif 13134 13135 /* 13136 * This is an internal copy of an I/O, and should not go through 13137 * the normal done processing logic. 13138 */ 13139 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13140 return; 13141 13142#ifdef CTL_IO_DELAY 13143 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13144 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13145 } else { 13146 struct ctl_lun *lun = CTL_LUN(io); 13147 13148 if ((lun != NULL) 13149 && (lun->delay_info.done_delay > 0)) { 13150 13151 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 13152 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13153 callout_reset(&io->io_hdr.delay_callout, 13154 lun->delay_info.done_delay * hz, 13155 ctl_done_timer_wakeup, io); 13156 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13157 lun->delay_info.done_delay = 0; 13158 return; 13159 } 13160 } 13161#endif /* CTL_IO_DELAY */ 13162 13163 ctl_enqueue_done(io); 13164} 13165 13166static void 13167ctl_work_thread(void *arg) 13168{ 13169 struct ctl_thread *thr = (struct ctl_thread *)arg; 13170 struct ctl_softc *softc = thr->ctl_softc; 13171 union ctl_io *io; 13172 int retval; 13173 13174 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13175 thread_lock(curthread); 13176 sched_prio(curthread, PUSER - 1); 13177 thread_unlock(curthread); 13178 13179 while (!softc->shutdown) { 13180 /* 13181 * We handle the queues in this order: 13182 * - ISC 13183 * - done queue (to free up resources, unblock other commands) 13184 * - incoming queue 13185 * - RtR queue 13186 * 13187 * If those queues are empty, we break out of the loop and 13188 * go to sleep. 13189 */ 13190 mtx_lock(&thr->queue_lock); 13191 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13192 if (io != NULL) { 13193 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13194 mtx_unlock(&thr->queue_lock); 13195 ctl_handle_isc(io); 13196 continue; 13197 } 13198 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13199 if (io != NULL) { 13200 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13201 /* clear any blocked commands, call fe_done */ 13202 mtx_unlock(&thr->queue_lock); 13203 ctl_process_done(io); 13204 continue; 13205 } 13206 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13207 if (io != NULL) { 13208 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13209 mtx_unlock(&thr->queue_lock); 13210 if (io->io_hdr.io_type == CTL_IO_TASK) 13211 ctl_run_task(io); 13212 else 13213 ctl_scsiio_precheck(softc, &io->scsiio); 13214 continue; 13215 } 13216 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13217 if (io != NULL) { 13218 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13219 mtx_unlock(&thr->queue_lock); 13220 retval = ctl_scsiio(&io->scsiio); 13221 if (retval != CTL_RETVAL_COMPLETE) 13222 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13223 continue; 13224 } 13225 13226 /* Sleep until we have something to do. */ 13227 mtx_sleep(thr, &thr->queue_lock, PDROP, "-", 0); 13228 } 13229 thr->thread = NULL; 13230 kthread_exit(); 13231} 13232 13233static void 13234ctl_thresh_thread(void *arg) 13235{ 13236 struct ctl_softc *softc = (struct ctl_softc *)arg; 13237 struct ctl_lun *lun; 13238 struct ctl_logical_block_provisioning_page *page; 13239 const char *attr; 13240 union ctl_ha_msg msg; 13241 uint64_t thres, val; 13242 int i, e, set; 13243 13244 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 13245 thread_lock(curthread); 13246 sched_prio(curthread, PUSER - 1); 13247 thread_unlock(curthread); 13248 13249 while (!softc->shutdown) { 13250 mtx_lock(&softc->ctl_lock); 13251 STAILQ_FOREACH(lun, &softc->lun_list, links) { 13252 if ((lun->flags & CTL_LUN_DISABLED) || 13253 (lun->flags & CTL_LUN_NO_MEDIA) || 13254 lun->backend->lun_attr == NULL) 13255 continue; 13256 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 13257 softc->ha_mode == CTL_HA_MODE_XFER) 13258 continue; 13259 if ((lun->MODE_RWER.byte8 & SMS_RWER_LBPERE) == 0) 13260 continue; 13261 e = 0; 13262 page = &lun->MODE_LBP; 13263 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 13264 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 13265 continue; 13266 thres = scsi_4btoul(page->descr[i].count); 13267 thres <<= CTL_LBP_EXPONENT; 13268 switch (page->descr[i].resource) { 13269 case 0x01: 13270 attr = "blocksavail"; 13271 break; 13272 case 0x02: 13273 attr = "blocksused"; 13274 break; 13275 case 0xf1: 13276 attr = "poolblocksavail"; 13277 break; 13278 case 0xf2: 13279 attr = "poolblocksused"; 13280 break; 13281 default: 13282 continue; 13283 } 13284 mtx_unlock(&softc->ctl_lock); // XXX 13285 val = lun->backend->lun_attr( 13286 lun->be_lun->be_lun, attr); 13287 mtx_lock(&softc->ctl_lock); 13288 if (val == UINT64_MAX) 13289 continue; 13290 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 13291 == SLBPPD_ARMING_INC) 13292 e = (val >= thres); 13293 else 13294 e = (val <= thres); 13295 if (e) 13296 break; 13297 } 13298 mtx_lock(&lun->lun_lock); 13299 if (e) { 13300 scsi_u64to8b((uint8_t *)&page->descr[i] - 13301 (uint8_t *)page, lun->ua_tpt_info); 13302 if (lun->lasttpt == 0 || 13303 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 13304 lun->lasttpt = time_uptime; 13305 ctl_est_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13306 set = 1; 13307 } else 13308 set = 0; 13309 } else { 13310 lun->lasttpt = 0; 13311 ctl_clr_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13312 set = -1; 13313 } 13314 mtx_unlock(&lun->lun_lock); 13315 if (set != 0 && 13316 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 13317 /* Send msg to other side. */ 13318 bzero(&msg.ua, sizeof(msg.ua)); 13319 msg.hdr.msg_type = CTL_MSG_UA; 13320 msg.hdr.nexus.initid = -1; 13321 msg.hdr.nexus.targ_port = -1; 13322 msg.hdr.nexus.targ_lun = lun->lun; 13323 msg.hdr.nexus.targ_mapped_lun = lun->lun; 13324 msg.ua.ua_all = 1; 13325 msg.ua.ua_set = (set > 0); 13326 msg.ua.ua_type = CTL_UA_THIN_PROV_THRES; 13327 memcpy(msg.ua.ua_info, lun->ua_tpt_info, 8); 13328 mtx_unlock(&softc->ctl_lock); // XXX 13329 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13330 sizeof(msg.ua), M_WAITOK); 13331 mtx_lock(&softc->ctl_lock); 13332 } 13333 } 13334 mtx_sleep(&softc->thresh_thread, &softc->ctl_lock, 13335 PDROP, "-", CTL_LBP_PERIOD * hz); 13336 } 13337 softc->thresh_thread = NULL; 13338 kthread_exit(); 13339} 13340 13341static void 13342ctl_enqueue_incoming(union ctl_io *io) 13343{ 13344 struct ctl_softc *softc = CTL_SOFTC(io); 13345 struct ctl_thread *thr; 13346 u_int idx; 13347 13348 idx = (io->io_hdr.nexus.targ_port * 127 + 13349 io->io_hdr.nexus.initid) % worker_threads; 13350 thr = &softc->threads[idx]; 13351 mtx_lock(&thr->queue_lock); 13352 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13353 mtx_unlock(&thr->queue_lock); 13354 wakeup(thr); 13355} 13356 13357static void 13358ctl_enqueue_rtr(union ctl_io *io) 13359{ 13360 struct ctl_softc *softc = CTL_SOFTC(io); 13361 struct ctl_thread *thr; 13362 13363 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13364 mtx_lock(&thr->queue_lock); 13365 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13366 mtx_unlock(&thr->queue_lock); 13367 wakeup(thr); 13368} 13369 13370static void 13371ctl_enqueue_done(union ctl_io *io) 13372{ 13373 struct ctl_softc *softc = CTL_SOFTC(io); 13374 struct ctl_thread *thr; 13375 13376 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13377 mtx_lock(&thr->queue_lock); 13378 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 13379 mtx_unlock(&thr->queue_lock); 13380 wakeup(thr); 13381} 13382 13383static void 13384ctl_enqueue_isc(union ctl_io *io) 13385{ 13386 struct ctl_softc *softc = CTL_SOFTC(io); 13387 struct ctl_thread *thr; 13388 13389 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13390 mtx_lock(&thr->queue_lock); 13391 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 13392 mtx_unlock(&thr->queue_lock); 13393 wakeup(thr); 13394} 13395 13396/* 13397 * vim: ts=8 13398 */ 13399