ctl.c revision 345112
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 345112 2019-03-13 20:26:46Z 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_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 465 struct ctl_be_lun *be_lun); 466static int ctl_free_lun(struct ctl_lun *lun); 467static void ctl_create_lun(struct ctl_be_lun *be_lun); 468 469static int ctl_do_mode_select(union ctl_io *io); 470static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 471 uint64_t res_key, uint64_t sa_res_key, 472 uint8_t type, uint32_t residx, 473 struct ctl_scsiio *ctsio, 474 struct scsi_per_res_out *cdb, 475 struct scsi_per_res_out_parms* param); 476static void ctl_pro_preempt_other(struct ctl_lun *lun, 477 union ctl_ha_msg *msg); 478static void ctl_hndl_per_res_out_on_other_sc(union ctl_io *io); 479static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 480static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 481static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 482static int ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len); 483static int ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len); 484static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 485 int alloc_len); 486static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 487 int alloc_len); 488static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 489static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 490static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 491static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 492static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len); 493static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2, 494 bool seq); 495static ctl_action ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2); 496static ctl_action ctl_check_for_blockage(struct ctl_lun *lun, 497 union ctl_io *pending_io, union ctl_io *ooa_io); 498static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 499 union ctl_io *starting_io); 500static int ctl_check_blocked(struct ctl_lun *lun); 501static int ctl_scsiio_lun_check(struct ctl_lun *lun, 502 const struct ctl_cmd_entry *entry, 503 struct ctl_scsiio *ctsio); 504static void ctl_failover_lun(union ctl_io *io); 505static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 506 struct ctl_scsiio *ctsio); 507static int ctl_scsiio(struct ctl_scsiio *ctsio); 508 509static int ctl_target_reset(union ctl_io *io); 510static void ctl_do_lun_reset(struct ctl_lun *lun, uint32_t initidx, 511 ctl_ua_type ua_type); 512static int ctl_lun_reset(union ctl_io *io); 513static int ctl_abort_task(union ctl_io *io); 514static int ctl_abort_task_set(union ctl_io *io); 515static int ctl_query_task(union ctl_io *io, int task_set); 516static void ctl_i_t_nexus_loss(struct ctl_softc *softc, uint32_t initidx, 517 ctl_ua_type ua_type); 518static int ctl_i_t_nexus_reset(union ctl_io *io); 519static int ctl_query_async_event(union ctl_io *io); 520static void ctl_run_task(union ctl_io *io); 521#ifdef CTL_IO_DELAY 522static void ctl_datamove_timer_wakeup(void *arg); 523static void ctl_done_timer_wakeup(void *arg); 524#endif /* CTL_IO_DELAY */ 525 526static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 527static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 528static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 529static void ctl_datamove_remote_write(union ctl_io *io); 530static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 531static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 532static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 533static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 534 ctl_ha_dt_cb callback); 535static void ctl_datamove_remote_read(union ctl_io *io); 536static void ctl_datamove_remote(union ctl_io *io); 537static void ctl_process_done(union ctl_io *io); 538static void ctl_lun_thread(void *arg); 539static void ctl_thresh_thread(void *arg); 540static void ctl_work_thread(void *arg); 541static void ctl_enqueue_incoming(union ctl_io *io); 542static void ctl_enqueue_rtr(union ctl_io *io); 543static void ctl_enqueue_done(union ctl_io *io); 544static void ctl_enqueue_isc(union ctl_io *io); 545static const struct ctl_cmd_entry * 546 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa); 547static const struct ctl_cmd_entry * 548 ctl_validate_command(struct ctl_scsiio *ctsio); 549static int ctl_cmd_applicable(uint8_t lun_type, 550 const struct ctl_cmd_entry *entry); 551static int ctl_ha_init(void); 552static int ctl_ha_shutdown(void); 553 554static uint64_t ctl_get_prkey(struct ctl_lun *lun, uint32_t residx); 555static void ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx); 556static void ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx); 557static void ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key); 558 559/* 560 * Load the serialization table. This isn't very pretty, but is probably 561 * the easiest way to do it. 562 */ 563#include "ctl_ser_table.c" 564 565/* 566 * We only need to define open, close and ioctl routines for this driver. 567 */ 568static struct cdevsw ctl_cdevsw = { 569 .d_version = D_VERSION, 570 .d_flags = 0, 571 .d_open = ctl_open, 572 .d_close = ctl_close, 573 .d_ioctl = ctl_ioctl, 574 .d_name = "ctl", 575}; 576 577 578MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 579 580static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 581 582static moduledata_t ctl_moduledata = { 583 "ctl", 584 ctl_module_event_handler, 585 NULL 586}; 587 588DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 589MODULE_VERSION(ctl, 1); 590 591static struct ctl_frontend ha_frontend = 592{ 593 .name = "ha", 594 .init = ctl_ha_init, 595 .shutdown = ctl_ha_shutdown, 596}; 597 598static int 599ctl_ha_init(void) 600{ 601 struct ctl_softc *softc = control_softc; 602 603 if (ctl_pool_create(softc, "othersc", CTL_POOL_ENTRIES_OTHER_SC, 604 &softc->othersc_pool) != 0) 605 return (ENOMEM); 606 if (ctl_ha_msg_init(softc) != CTL_HA_STATUS_SUCCESS) { 607 ctl_pool_free(softc->othersc_pool); 608 return (EIO); 609 } 610 if (ctl_ha_msg_register(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 611 != CTL_HA_STATUS_SUCCESS) { 612 ctl_ha_msg_destroy(softc); 613 ctl_pool_free(softc->othersc_pool); 614 return (EIO); 615 } 616 return (0); 617}; 618 619static int 620ctl_ha_shutdown(void) 621{ 622 struct ctl_softc *softc = control_softc; 623 struct ctl_port *port; 624 625 ctl_ha_msg_shutdown(softc); 626 if (ctl_ha_msg_deregister(CTL_HA_CHAN_CTL) != CTL_HA_STATUS_SUCCESS) 627 return (EIO); 628 if (ctl_ha_msg_destroy(softc) != CTL_HA_STATUS_SUCCESS) 629 return (EIO); 630 ctl_pool_free(softc->othersc_pool); 631 while ((port = STAILQ_FIRST(&ha_frontend.port_list)) != NULL) { 632 ctl_port_deregister(port); 633 free(port->port_name, M_CTL); 634 free(port, M_CTL); 635 } 636 return (0); 637}; 638 639static void 640ctl_ha_datamove(union ctl_io *io) 641{ 642 struct ctl_lun *lun = CTL_LUN(io); 643 struct ctl_sg_entry *sgl; 644 union ctl_ha_msg msg; 645 uint32_t sg_entries_sent; 646 int do_sg_copy, i, j; 647 648 memset(&msg.dt, 0, sizeof(msg.dt)); 649 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 650 msg.hdr.original_sc = io->io_hdr.remote_io; 651 msg.hdr.serializing_sc = io; 652 msg.hdr.nexus = io->io_hdr.nexus; 653 msg.hdr.status = io->io_hdr.status; 654 msg.dt.flags = io->io_hdr.flags; 655 656 /* 657 * We convert everything into a S/G list here. We can't 658 * pass by reference, only by value between controllers. 659 * So we can't pass a pointer to the S/G list, only as many 660 * S/G entries as we can fit in here. If it's possible for 661 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 662 * then we need to break this up into multiple transfers. 663 */ 664 if (io->scsiio.kern_sg_entries == 0) { 665 msg.dt.kern_sg_entries = 1; 666#if 0 667 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 668 msg.dt.sg_list[0].addr = io->scsiio.kern_data_ptr; 669 } else { 670 /* XXX KDM use busdma here! */ 671 msg.dt.sg_list[0].addr = 672 (void *)vtophys(io->scsiio.kern_data_ptr); 673 } 674#else 675 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 676 ("HA does not support BUS_ADDR")); 677 msg.dt.sg_list[0].addr = io->scsiio.kern_data_ptr; 678#endif 679 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 680 do_sg_copy = 0; 681 } else { 682 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 683 do_sg_copy = 1; 684 } 685 686 msg.dt.kern_data_len = io->scsiio.kern_data_len; 687 msg.dt.kern_total_len = io->scsiio.kern_total_len; 688 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 689 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 690 msg.dt.sg_sequence = 0; 691 692 /* 693 * Loop until we've sent all of the S/G entries. On the 694 * other end, we'll recompose these S/G entries into one 695 * contiguous list before processing. 696 */ 697 for (sg_entries_sent = 0; sg_entries_sent < msg.dt.kern_sg_entries; 698 msg.dt.sg_sequence++) { 699 msg.dt.cur_sg_entries = MIN((sizeof(msg.dt.sg_list) / 700 sizeof(msg.dt.sg_list[0])), 701 msg.dt.kern_sg_entries - sg_entries_sent); 702 if (do_sg_copy != 0) { 703 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 704 for (i = sg_entries_sent, j = 0; 705 i < msg.dt.cur_sg_entries; i++, j++) { 706#if 0 707 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 708 msg.dt.sg_list[j].addr = sgl[i].addr; 709 } else { 710 /* XXX KDM use busdma here! */ 711 msg.dt.sg_list[j].addr = 712 (void *)vtophys(sgl[i].addr); 713 } 714#else 715 KASSERT((io->io_hdr.flags & 716 CTL_FLAG_BUS_ADDR) == 0, 717 ("HA does not support BUS_ADDR")); 718 msg.dt.sg_list[j].addr = sgl[i].addr; 719#endif 720 msg.dt.sg_list[j].len = sgl[i].len; 721 } 722 } 723 724 sg_entries_sent += msg.dt.cur_sg_entries; 725 msg.dt.sg_last = (sg_entries_sent >= msg.dt.kern_sg_entries); 726 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 727 sizeof(msg.dt) - sizeof(msg.dt.sg_list) + 728 sizeof(struct ctl_sg_entry) * msg.dt.cur_sg_entries, 729 M_WAITOK) > CTL_HA_STATUS_SUCCESS) { 730 io->io_hdr.port_status = 31341; 731 io->scsiio.be_move_done(io); 732 return; 733 } 734 msg.dt.sent_sg_entries = sg_entries_sent; 735 } 736 737 /* 738 * Officially handover the request from us to peer. 739 * If failover has just happened, then we must return error. 740 * If failover happen just after, then it is not our problem. 741 */ 742 if (lun) 743 mtx_lock(&lun->lun_lock); 744 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 745 if (lun) 746 mtx_unlock(&lun->lun_lock); 747 io->io_hdr.port_status = 31342; 748 io->scsiio.be_move_done(io); 749 return; 750 } 751 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 752 io->io_hdr.flags |= CTL_FLAG_DMA_INPROG; 753 if (lun) 754 mtx_unlock(&lun->lun_lock); 755} 756 757static void 758ctl_ha_done(union ctl_io *io) 759{ 760 union ctl_ha_msg msg; 761 762 if (io->io_hdr.io_type == CTL_IO_SCSI) { 763 memset(&msg, 0, sizeof(msg)); 764 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 765 msg.hdr.original_sc = io->io_hdr.remote_io; 766 msg.hdr.nexus = io->io_hdr.nexus; 767 msg.hdr.status = io->io_hdr.status; 768 msg.scsi.scsi_status = io->scsiio.scsi_status; 769 msg.scsi.tag_num = io->scsiio.tag_num; 770 msg.scsi.tag_type = io->scsiio.tag_type; 771 msg.scsi.sense_len = io->scsiio.sense_len; 772 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 773 io->scsiio.sense_len); 774 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 775 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 776 msg.scsi.sense_len, M_WAITOK); 777 } 778 ctl_free_io(io); 779} 780 781static void 782ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 783 union ctl_ha_msg *msg_info) 784{ 785 struct ctl_scsiio *ctsio; 786 787 if (msg_info->hdr.original_sc == NULL) { 788 printf("%s: original_sc == NULL!\n", __func__); 789 /* XXX KDM now what? */ 790 return; 791 } 792 793 ctsio = &msg_info->hdr.original_sc->scsiio; 794 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 795 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 796 ctsio->io_hdr.status = msg_info->hdr.status; 797 ctsio->scsi_status = msg_info->scsi.scsi_status; 798 ctsio->sense_len = msg_info->scsi.sense_len; 799 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 800 msg_info->scsi.sense_len); 801 ctl_enqueue_isc((union ctl_io *)ctsio); 802} 803 804static void 805ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 806 union ctl_ha_msg *msg_info) 807{ 808 struct ctl_scsiio *ctsio; 809 810 if (msg_info->hdr.serializing_sc == NULL) { 811 printf("%s: serializing_sc == NULL!\n", __func__); 812 /* XXX KDM now what? */ 813 return; 814 } 815 816 ctsio = &msg_info->hdr.serializing_sc->scsiio; 817 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 818 ctl_enqueue_isc((union ctl_io *)ctsio); 819} 820 821void 822ctl_isc_announce_lun(struct ctl_lun *lun) 823{ 824 struct ctl_softc *softc = lun->ctl_softc; 825 union ctl_ha_msg *msg; 826 struct ctl_ha_msg_lun_pr_key pr_key; 827 int i, k; 828 829 if (softc->ha_link != CTL_HA_LINK_ONLINE) 830 return; 831 mtx_lock(&lun->lun_lock); 832 i = sizeof(msg->lun); 833 if (lun->lun_devid) 834 i += lun->lun_devid->len; 835 i += sizeof(pr_key) * lun->pr_key_count; 836alloc: 837 mtx_unlock(&lun->lun_lock); 838 msg = malloc(i, M_CTL, M_WAITOK); 839 mtx_lock(&lun->lun_lock); 840 k = sizeof(msg->lun); 841 if (lun->lun_devid) 842 k += lun->lun_devid->len; 843 k += sizeof(pr_key) * lun->pr_key_count; 844 if (i < k) { 845 free(msg, M_CTL); 846 i = k; 847 goto alloc; 848 } 849 bzero(&msg->lun, sizeof(msg->lun)); 850 msg->hdr.msg_type = CTL_MSG_LUN_SYNC; 851 msg->hdr.nexus.targ_lun = lun->lun; 852 msg->hdr.nexus.targ_mapped_lun = lun->lun; 853 msg->lun.flags = lun->flags; 854 msg->lun.pr_generation = lun->pr_generation; 855 msg->lun.pr_res_idx = lun->pr_res_idx; 856 msg->lun.pr_res_type = lun->pr_res_type; 857 msg->lun.pr_key_count = lun->pr_key_count; 858 i = 0; 859 if (lun->lun_devid) { 860 msg->lun.lun_devid_len = lun->lun_devid->len; 861 memcpy(&msg->lun.data[i], lun->lun_devid->data, 862 msg->lun.lun_devid_len); 863 i += msg->lun.lun_devid_len; 864 } 865 for (k = 0; k < CTL_MAX_INITIATORS; k++) { 866 if ((pr_key.pr_key = ctl_get_prkey(lun, k)) == 0) 867 continue; 868 pr_key.pr_iid = k; 869 memcpy(&msg->lun.data[i], &pr_key, sizeof(pr_key)); 870 i += sizeof(pr_key); 871 } 872 mtx_unlock(&lun->lun_lock); 873 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 874 M_WAITOK); 875 free(msg, M_CTL); 876 877 if (lun->flags & CTL_LUN_PRIMARY_SC) { 878 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 879 ctl_isc_announce_mode(lun, -1, 880 lun->mode_pages.index[i].page_code & SMPH_PC_MASK, 881 lun->mode_pages.index[i].subpage); 882 } 883 } 884} 885 886void 887ctl_isc_announce_port(struct ctl_port *port) 888{ 889 struct ctl_softc *softc = port->ctl_softc; 890 union ctl_ha_msg *msg; 891 int i; 892 893 if (port->targ_port < softc->port_min || 894 port->targ_port >= softc->port_max || 895 softc->ha_link != CTL_HA_LINK_ONLINE) 896 return; 897 i = sizeof(msg->port) + strlen(port->port_name) + 1; 898 if (port->lun_map) 899 i += port->lun_map_size * sizeof(uint32_t); 900 if (port->port_devid) 901 i += port->port_devid->len; 902 if (port->target_devid) 903 i += port->target_devid->len; 904 if (port->init_devid) 905 i += port->init_devid->len; 906 msg = malloc(i, M_CTL, M_WAITOK); 907 bzero(&msg->port, sizeof(msg->port)); 908 msg->hdr.msg_type = CTL_MSG_PORT_SYNC; 909 msg->hdr.nexus.targ_port = port->targ_port; 910 msg->port.port_type = port->port_type; 911 msg->port.physical_port = port->physical_port; 912 msg->port.virtual_port = port->virtual_port; 913 msg->port.status = port->status; 914 i = 0; 915 msg->port.name_len = sprintf(&msg->port.data[i], 916 "%d:%s", softc->ha_id, port->port_name) + 1; 917 i += msg->port.name_len; 918 if (port->lun_map) { 919 msg->port.lun_map_len = port->lun_map_size * sizeof(uint32_t); 920 memcpy(&msg->port.data[i], port->lun_map, 921 msg->port.lun_map_len); 922 i += msg->port.lun_map_len; 923 } 924 if (port->port_devid) { 925 msg->port.port_devid_len = port->port_devid->len; 926 memcpy(&msg->port.data[i], port->port_devid->data, 927 msg->port.port_devid_len); 928 i += msg->port.port_devid_len; 929 } 930 if (port->target_devid) { 931 msg->port.target_devid_len = port->target_devid->len; 932 memcpy(&msg->port.data[i], port->target_devid->data, 933 msg->port.target_devid_len); 934 i += msg->port.target_devid_len; 935 } 936 if (port->init_devid) { 937 msg->port.init_devid_len = port->init_devid->len; 938 memcpy(&msg->port.data[i], port->init_devid->data, 939 msg->port.init_devid_len); 940 i += msg->port.init_devid_len; 941 } 942 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 943 M_WAITOK); 944 free(msg, M_CTL); 945} 946 947void 948ctl_isc_announce_iid(struct ctl_port *port, int iid) 949{ 950 struct ctl_softc *softc = port->ctl_softc; 951 union ctl_ha_msg *msg; 952 int i, l; 953 954 if (port->targ_port < softc->port_min || 955 port->targ_port >= softc->port_max || 956 softc->ha_link != CTL_HA_LINK_ONLINE) 957 return; 958 mtx_lock(&softc->ctl_lock); 959 i = sizeof(msg->iid); 960 l = 0; 961 if (port->wwpn_iid[iid].name) 962 l = strlen(port->wwpn_iid[iid].name) + 1; 963 i += l; 964 msg = malloc(i, M_CTL, M_NOWAIT); 965 if (msg == NULL) { 966 mtx_unlock(&softc->ctl_lock); 967 return; 968 } 969 bzero(&msg->iid, sizeof(msg->iid)); 970 msg->hdr.msg_type = CTL_MSG_IID_SYNC; 971 msg->hdr.nexus.targ_port = port->targ_port; 972 msg->hdr.nexus.initid = iid; 973 msg->iid.in_use = port->wwpn_iid[iid].in_use; 974 msg->iid.name_len = l; 975 msg->iid.wwpn = port->wwpn_iid[iid].wwpn; 976 if (port->wwpn_iid[iid].name) 977 strlcpy(msg->iid.data, port->wwpn_iid[iid].name, l); 978 mtx_unlock(&softc->ctl_lock); 979 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->iid, i, M_NOWAIT); 980 free(msg, M_CTL); 981} 982 983void 984ctl_isc_announce_mode(struct ctl_lun *lun, uint32_t initidx, 985 uint8_t page, uint8_t subpage) 986{ 987 struct ctl_softc *softc = lun->ctl_softc; 988 union ctl_ha_msg msg; 989 u_int i; 990 991 if (softc->ha_link != CTL_HA_LINK_ONLINE) 992 return; 993 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 994 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) == 995 page && lun->mode_pages.index[i].subpage == subpage) 996 break; 997 } 998 if (i == CTL_NUM_MODE_PAGES) 999 return; 1000 1001 /* Don't try to replicate pages not present on this device. */ 1002 if (lun->mode_pages.index[i].page_data == NULL) 1003 return; 1004 1005 bzero(&msg.mode, sizeof(msg.mode)); 1006 msg.hdr.msg_type = CTL_MSG_MODE_SYNC; 1007 msg.hdr.nexus.targ_port = initidx / CTL_MAX_INIT_PER_PORT; 1008 msg.hdr.nexus.initid = initidx % CTL_MAX_INIT_PER_PORT; 1009 msg.hdr.nexus.targ_lun = lun->lun; 1010 msg.hdr.nexus.targ_mapped_lun = lun->lun; 1011 msg.mode.page_code = page; 1012 msg.mode.subpage = subpage; 1013 msg.mode.page_len = lun->mode_pages.index[i].page_len; 1014 memcpy(msg.mode.data, lun->mode_pages.index[i].page_data, 1015 msg.mode.page_len); 1016 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg.mode, sizeof(msg.mode), 1017 M_WAITOK); 1018} 1019 1020static void 1021ctl_isc_ha_link_up(struct ctl_softc *softc) 1022{ 1023 struct ctl_port *port; 1024 struct ctl_lun *lun; 1025 union ctl_ha_msg msg; 1026 int i; 1027 1028 /* Announce this node parameters to peer for validation. */ 1029 msg.login.msg_type = CTL_MSG_LOGIN; 1030 msg.login.version = CTL_HA_VERSION; 1031 msg.login.ha_mode = softc->ha_mode; 1032 msg.login.ha_id = softc->ha_id; 1033 msg.login.max_luns = ctl_max_luns; 1034 msg.login.max_ports = ctl_max_ports; 1035 msg.login.max_init_per_port = CTL_MAX_INIT_PER_PORT; 1036 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg.login, sizeof(msg.login), 1037 M_WAITOK); 1038 1039 STAILQ_FOREACH(port, &softc->port_list, links) { 1040 ctl_isc_announce_port(port); 1041 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1042 if (port->wwpn_iid[i].in_use) 1043 ctl_isc_announce_iid(port, i); 1044 } 1045 } 1046 STAILQ_FOREACH(lun, &softc->lun_list, links) 1047 ctl_isc_announce_lun(lun); 1048} 1049 1050static void 1051ctl_isc_ha_link_down(struct ctl_softc *softc) 1052{ 1053 struct ctl_port *port; 1054 struct ctl_lun *lun; 1055 union ctl_io *io; 1056 int i; 1057 1058 mtx_lock(&softc->ctl_lock); 1059 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1060 mtx_lock(&lun->lun_lock); 1061 if (lun->flags & CTL_LUN_PEER_SC_PRIMARY) { 1062 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 1063 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 1064 } 1065 mtx_unlock(&lun->lun_lock); 1066 1067 mtx_unlock(&softc->ctl_lock); 1068 io = ctl_alloc_io(softc->othersc_pool); 1069 mtx_lock(&softc->ctl_lock); 1070 ctl_zero_io(io); 1071 io->io_hdr.msg_type = CTL_MSG_FAILOVER; 1072 io->io_hdr.nexus.targ_mapped_lun = lun->lun; 1073 ctl_enqueue_isc(io); 1074 } 1075 1076 STAILQ_FOREACH(port, &softc->port_list, links) { 1077 if (port->targ_port >= softc->port_min && 1078 port->targ_port < softc->port_max) 1079 continue; 1080 port->status &= ~CTL_PORT_STATUS_ONLINE; 1081 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1082 port->wwpn_iid[i].in_use = 0; 1083 free(port->wwpn_iid[i].name, M_CTL); 1084 port->wwpn_iid[i].name = NULL; 1085 } 1086 } 1087 mtx_unlock(&softc->ctl_lock); 1088} 1089 1090static void 1091ctl_isc_ua(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1092{ 1093 struct ctl_lun *lun; 1094 uint32_t iid = ctl_get_initindex(&msg->hdr.nexus); 1095 1096 mtx_lock(&softc->ctl_lock); 1097 if (msg->hdr.nexus.targ_mapped_lun >= ctl_max_luns || 1098 (lun = softc->ctl_luns[msg->hdr.nexus.targ_mapped_lun]) == NULL) { 1099 mtx_unlock(&softc->ctl_lock); 1100 return; 1101 } 1102 mtx_lock(&lun->lun_lock); 1103 mtx_unlock(&softc->ctl_lock); 1104 if (msg->ua.ua_type == CTL_UA_THIN_PROV_THRES && msg->ua.ua_set) 1105 memcpy(lun->ua_tpt_info, msg->ua.ua_info, 8); 1106 if (msg->ua.ua_all) { 1107 if (msg->ua.ua_set) 1108 ctl_est_ua_all(lun, iid, msg->ua.ua_type); 1109 else 1110 ctl_clr_ua_all(lun, iid, msg->ua.ua_type); 1111 } else { 1112 if (msg->ua.ua_set) 1113 ctl_est_ua(lun, iid, msg->ua.ua_type); 1114 else 1115 ctl_clr_ua(lun, iid, msg->ua.ua_type); 1116 } 1117 mtx_unlock(&lun->lun_lock); 1118} 1119 1120static void 1121ctl_isc_lun_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1122{ 1123 struct ctl_lun *lun; 1124 struct ctl_ha_msg_lun_pr_key pr_key; 1125 int i, k; 1126 ctl_lun_flags oflags; 1127 uint32_t targ_lun; 1128 1129 targ_lun = msg->hdr.nexus.targ_mapped_lun; 1130 mtx_lock(&softc->ctl_lock); 1131 if (targ_lun >= ctl_max_luns || 1132 (lun = softc->ctl_luns[targ_lun]) == NULL) { 1133 mtx_unlock(&softc->ctl_lock); 1134 return; 1135 } 1136 mtx_lock(&lun->lun_lock); 1137 mtx_unlock(&softc->ctl_lock); 1138 if (lun->flags & CTL_LUN_DISABLED) { 1139 mtx_unlock(&lun->lun_lock); 1140 return; 1141 } 1142 i = (lun->lun_devid != NULL) ? lun->lun_devid->len : 0; 1143 if (msg->lun.lun_devid_len != i || (i > 0 && 1144 memcmp(&msg->lun.data[0], lun->lun_devid->data, i) != 0)) { 1145 mtx_unlock(&lun->lun_lock); 1146 printf("%s: Received conflicting HA LUN %d\n", 1147 __func__, targ_lun); 1148 return; 1149 } else { 1150 /* Record whether peer is primary. */ 1151 oflags = lun->flags; 1152 if ((msg->lun.flags & CTL_LUN_PRIMARY_SC) && 1153 (msg->lun.flags & CTL_LUN_DISABLED) == 0) 1154 lun->flags |= CTL_LUN_PEER_SC_PRIMARY; 1155 else 1156 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 1157 if (oflags != lun->flags) 1158 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 1159 1160 /* If peer is primary and we are not -- use data */ 1161 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 1162 (lun->flags & CTL_LUN_PEER_SC_PRIMARY)) { 1163 lun->pr_generation = msg->lun.pr_generation; 1164 lun->pr_res_idx = msg->lun.pr_res_idx; 1165 lun->pr_res_type = msg->lun.pr_res_type; 1166 lun->pr_key_count = msg->lun.pr_key_count; 1167 for (k = 0; k < CTL_MAX_INITIATORS; k++) 1168 ctl_clr_prkey(lun, k); 1169 for (k = 0; k < msg->lun.pr_key_count; k++) { 1170 memcpy(&pr_key, &msg->lun.data[i], 1171 sizeof(pr_key)); 1172 ctl_alloc_prkey(lun, pr_key.pr_iid); 1173 ctl_set_prkey(lun, pr_key.pr_iid, 1174 pr_key.pr_key); 1175 i += sizeof(pr_key); 1176 } 1177 } 1178 1179 mtx_unlock(&lun->lun_lock); 1180 CTL_DEBUG_PRINT(("%s: Known LUN %d, peer is %s\n", 1181 __func__, targ_lun, 1182 (msg->lun.flags & CTL_LUN_PRIMARY_SC) ? 1183 "primary" : "secondary")); 1184 1185 /* If we are primary but peer doesn't know -- notify */ 1186 if ((lun->flags & CTL_LUN_PRIMARY_SC) && 1187 (msg->lun.flags & CTL_LUN_PEER_SC_PRIMARY) == 0) 1188 ctl_isc_announce_lun(lun); 1189 } 1190} 1191 1192static void 1193ctl_isc_port_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1194{ 1195 struct ctl_port *port; 1196 struct ctl_lun *lun; 1197 int i, new; 1198 1199 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 1200 if (port == NULL) { 1201 CTL_DEBUG_PRINT(("%s: New port %d\n", __func__, 1202 msg->hdr.nexus.targ_port)); 1203 new = 1; 1204 port = malloc(sizeof(*port), M_CTL, M_WAITOK | M_ZERO); 1205 port->frontend = &ha_frontend; 1206 port->targ_port = msg->hdr.nexus.targ_port; 1207 port->fe_datamove = ctl_ha_datamove; 1208 port->fe_done = ctl_ha_done; 1209 } else if (port->frontend == &ha_frontend) { 1210 CTL_DEBUG_PRINT(("%s: Updated port %d\n", __func__, 1211 msg->hdr.nexus.targ_port)); 1212 new = 0; 1213 } else { 1214 printf("%s: Received conflicting HA port %d\n", 1215 __func__, msg->hdr.nexus.targ_port); 1216 return; 1217 } 1218 port->port_type = msg->port.port_type; 1219 port->physical_port = msg->port.physical_port; 1220 port->virtual_port = msg->port.virtual_port; 1221 port->status = msg->port.status; 1222 i = 0; 1223 free(port->port_name, M_CTL); 1224 port->port_name = strndup(&msg->port.data[i], msg->port.name_len, 1225 M_CTL); 1226 i += msg->port.name_len; 1227 if (msg->port.lun_map_len != 0) { 1228 if (port->lun_map == NULL || 1229 port->lun_map_size * sizeof(uint32_t) < 1230 msg->port.lun_map_len) { 1231 port->lun_map_size = 0; 1232 free(port->lun_map, M_CTL); 1233 port->lun_map = malloc(msg->port.lun_map_len, 1234 M_CTL, M_WAITOK); 1235 } 1236 memcpy(port->lun_map, &msg->port.data[i], msg->port.lun_map_len); 1237 port->lun_map_size = msg->port.lun_map_len / sizeof(uint32_t); 1238 i += msg->port.lun_map_len; 1239 } else { 1240 port->lun_map_size = 0; 1241 free(port->lun_map, M_CTL); 1242 port->lun_map = NULL; 1243 } 1244 if (msg->port.port_devid_len != 0) { 1245 if (port->port_devid == NULL || 1246 port->port_devid->len < msg->port.port_devid_len) { 1247 free(port->port_devid, M_CTL); 1248 port->port_devid = malloc(sizeof(struct ctl_devid) + 1249 msg->port.port_devid_len, M_CTL, M_WAITOK); 1250 } 1251 memcpy(port->port_devid->data, &msg->port.data[i], 1252 msg->port.port_devid_len); 1253 port->port_devid->len = msg->port.port_devid_len; 1254 i += msg->port.port_devid_len; 1255 } else { 1256 free(port->port_devid, M_CTL); 1257 port->port_devid = NULL; 1258 } 1259 if (msg->port.target_devid_len != 0) { 1260 if (port->target_devid == NULL || 1261 port->target_devid->len < msg->port.target_devid_len) { 1262 free(port->target_devid, M_CTL); 1263 port->target_devid = malloc(sizeof(struct ctl_devid) + 1264 msg->port.target_devid_len, M_CTL, M_WAITOK); 1265 } 1266 memcpy(port->target_devid->data, &msg->port.data[i], 1267 msg->port.target_devid_len); 1268 port->target_devid->len = msg->port.target_devid_len; 1269 i += msg->port.target_devid_len; 1270 } else { 1271 free(port->target_devid, M_CTL); 1272 port->target_devid = NULL; 1273 } 1274 if (msg->port.init_devid_len != 0) { 1275 if (port->init_devid == NULL || 1276 port->init_devid->len < msg->port.init_devid_len) { 1277 free(port->init_devid, M_CTL); 1278 port->init_devid = malloc(sizeof(struct ctl_devid) + 1279 msg->port.init_devid_len, M_CTL, M_WAITOK); 1280 } 1281 memcpy(port->init_devid->data, &msg->port.data[i], 1282 msg->port.init_devid_len); 1283 port->init_devid->len = msg->port.init_devid_len; 1284 i += msg->port.init_devid_len; 1285 } else { 1286 free(port->init_devid, M_CTL); 1287 port->init_devid = NULL; 1288 } 1289 if (new) { 1290 if (ctl_port_register(port) != 0) { 1291 printf("%s: ctl_port_register() failed with error\n", 1292 __func__); 1293 } 1294 } 1295 mtx_lock(&softc->ctl_lock); 1296 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1297 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 1298 continue; 1299 mtx_lock(&lun->lun_lock); 1300 ctl_est_ua_all(lun, -1, CTL_UA_INQ_CHANGE); 1301 mtx_unlock(&lun->lun_lock); 1302 } 1303 mtx_unlock(&softc->ctl_lock); 1304} 1305 1306static void 1307ctl_isc_iid_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1308{ 1309 struct ctl_port *port; 1310 int iid; 1311 1312 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 1313 if (port == NULL) { 1314 printf("%s: Received IID for unknown port %d\n", 1315 __func__, msg->hdr.nexus.targ_port); 1316 return; 1317 } 1318 iid = msg->hdr.nexus.initid; 1319 if (port->wwpn_iid[iid].in_use != 0 && 1320 msg->iid.in_use == 0) 1321 ctl_i_t_nexus_loss(softc, iid, CTL_UA_POWERON); 1322 port->wwpn_iid[iid].in_use = msg->iid.in_use; 1323 port->wwpn_iid[iid].wwpn = msg->iid.wwpn; 1324 free(port->wwpn_iid[iid].name, M_CTL); 1325 if (msg->iid.name_len) { 1326 port->wwpn_iid[iid].name = strndup(&msg->iid.data[0], 1327 msg->iid.name_len, M_CTL); 1328 } else 1329 port->wwpn_iid[iid].name = NULL; 1330} 1331 1332static void 1333ctl_isc_login(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1334{ 1335 1336 if (msg->login.version != CTL_HA_VERSION) { 1337 printf("CTL HA peers have different versions %d != %d\n", 1338 msg->login.version, CTL_HA_VERSION); 1339 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1340 return; 1341 } 1342 if (msg->login.ha_mode != softc->ha_mode) { 1343 printf("CTL HA peers have different ha_mode %d != %d\n", 1344 msg->login.ha_mode, softc->ha_mode); 1345 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1346 return; 1347 } 1348 if (msg->login.ha_id == softc->ha_id) { 1349 printf("CTL HA peers have same ha_id %d\n", msg->login.ha_id); 1350 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1351 return; 1352 } 1353 if (msg->login.max_luns != ctl_max_luns || 1354 msg->login.max_ports != ctl_max_ports || 1355 msg->login.max_init_per_port != CTL_MAX_INIT_PER_PORT) { 1356 printf("CTL HA peers have different limits\n"); 1357 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1358 return; 1359 } 1360} 1361 1362static void 1363ctl_isc_mode_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1364{ 1365 struct ctl_lun *lun; 1366 u_int i; 1367 uint32_t initidx, targ_lun; 1368 1369 targ_lun = msg->hdr.nexus.targ_mapped_lun; 1370 mtx_lock(&softc->ctl_lock); 1371 if (targ_lun >= ctl_max_luns || 1372 (lun = softc->ctl_luns[targ_lun]) == NULL) { 1373 mtx_unlock(&softc->ctl_lock); 1374 return; 1375 } 1376 mtx_lock(&lun->lun_lock); 1377 mtx_unlock(&softc->ctl_lock); 1378 if (lun->flags & CTL_LUN_DISABLED) { 1379 mtx_unlock(&lun->lun_lock); 1380 return; 1381 } 1382 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 1383 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) == 1384 msg->mode.page_code && 1385 lun->mode_pages.index[i].subpage == msg->mode.subpage) 1386 break; 1387 } 1388 if (i == CTL_NUM_MODE_PAGES) { 1389 mtx_unlock(&lun->lun_lock); 1390 return; 1391 } 1392 memcpy(lun->mode_pages.index[i].page_data, msg->mode.data, 1393 lun->mode_pages.index[i].page_len); 1394 initidx = ctl_get_initindex(&msg->hdr.nexus); 1395 if (initidx != -1) 1396 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 1397 mtx_unlock(&lun->lun_lock); 1398} 1399 1400/* 1401 * ISC (Inter Shelf Communication) event handler. Events from the HA 1402 * subsystem come in here. 1403 */ 1404static void 1405ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 1406{ 1407 struct ctl_softc *softc = control_softc; 1408 union ctl_io *io; 1409 struct ctl_prio *presio; 1410 ctl_ha_status isc_status; 1411 1412 CTL_DEBUG_PRINT(("CTL: Isc Msg event %d\n", event)); 1413 if (event == CTL_HA_EVT_MSG_RECV) { 1414 union ctl_ha_msg *msg, msgbuf; 1415 1416 if (param > sizeof(msgbuf)) 1417 msg = malloc(param, M_CTL, M_WAITOK); 1418 else 1419 msg = &msgbuf; 1420 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, msg, param, 1421 M_WAITOK); 1422 if (isc_status != CTL_HA_STATUS_SUCCESS) { 1423 printf("%s: Error receiving message: %d\n", 1424 __func__, isc_status); 1425 if (msg != &msgbuf) 1426 free(msg, M_CTL); 1427 return; 1428 } 1429 1430 CTL_DEBUG_PRINT(("CTL: msg_type %d\n", msg->msg_type)); 1431 switch (msg->hdr.msg_type) { 1432 case CTL_MSG_SERIALIZE: 1433 io = ctl_alloc_io(softc->othersc_pool); 1434 ctl_zero_io(io); 1435 // populate ctsio from msg 1436 io->io_hdr.io_type = CTL_IO_SCSI; 1437 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 1438 io->io_hdr.remote_io = msg->hdr.original_sc; 1439 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 1440 CTL_FLAG_IO_ACTIVE; 1441 /* 1442 * If we're in serialization-only mode, we don't 1443 * want to go through full done processing. Thus 1444 * the COPY flag. 1445 * 1446 * XXX KDM add another flag that is more specific. 1447 */ 1448 if (softc->ha_mode != CTL_HA_MODE_XFER) 1449 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 1450 io->io_hdr.nexus = msg->hdr.nexus; 1451 io->scsiio.tag_num = msg->scsi.tag_num; 1452 io->scsiio.tag_type = msg->scsi.tag_type; 1453#ifdef CTL_TIME_IO 1454 io->io_hdr.start_time = time_uptime; 1455 getbinuptime(&io->io_hdr.start_bt); 1456#endif /* CTL_TIME_IO */ 1457 io->scsiio.cdb_len = msg->scsi.cdb_len; 1458 memcpy(io->scsiio.cdb, msg->scsi.cdb, 1459 CTL_MAX_CDBLEN); 1460 if (softc->ha_mode == CTL_HA_MODE_XFER) { 1461 const struct ctl_cmd_entry *entry; 1462 1463 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 1464 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 1465 io->io_hdr.flags |= 1466 entry->flags & CTL_FLAG_DATA_MASK; 1467 } 1468 ctl_enqueue_isc(io); 1469 break; 1470 1471 /* Performed on the Originating SC, XFER mode only */ 1472 case CTL_MSG_DATAMOVE: { 1473 struct ctl_sg_entry *sgl; 1474 int i, j; 1475 1476 io = msg->hdr.original_sc; 1477 if (io == NULL) { 1478 printf("%s: original_sc == NULL!\n", __func__); 1479 /* XXX KDM do something here */ 1480 break; 1481 } 1482 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 1483 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1484 /* 1485 * Keep track of this, we need to send it back over 1486 * when the datamove is complete. 1487 */ 1488 io->io_hdr.remote_io = msg->hdr.serializing_sc; 1489 if (msg->hdr.status == CTL_SUCCESS) 1490 io->io_hdr.status = msg->hdr.status; 1491 1492 if (msg->dt.sg_sequence == 0) { 1493#ifdef CTL_TIME_IO 1494 getbinuptime(&io->io_hdr.dma_start_bt); 1495#endif 1496 i = msg->dt.kern_sg_entries + 1497 msg->dt.kern_data_len / 1498 CTL_HA_DATAMOVE_SEGMENT + 1; 1499 sgl = malloc(sizeof(*sgl) * i, M_CTL, 1500 M_WAITOK | M_ZERO); 1501 CTL_RSGL(io) = sgl; 1502 CTL_LSGL(io) = &sgl[msg->dt.kern_sg_entries]; 1503 1504 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 1505 1506 io->scsiio.kern_sg_entries = 1507 msg->dt.kern_sg_entries; 1508 io->scsiio.rem_sg_entries = 1509 msg->dt.kern_sg_entries; 1510 io->scsiio.kern_data_len = 1511 msg->dt.kern_data_len; 1512 io->scsiio.kern_total_len = 1513 msg->dt.kern_total_len; 1514 io->scsiio.kern_data_resid = 1515 msg->dt.kern_data_resid; 1516 io->scsiio.kern_rel_offset = 1517 msg->dt.kern_rel_offset; 1518 io->io_hdr.flags &= ~CTL_FLAG_BUS_ADDR; 1519 io->io_hdr.flags |= msg->dt.flags & 1520 CTL_FLAG_BUS_ADDR; 1521 } else 1522 sgl = (struct ctl_sg_entry *) 1523 io->scsiio.kern_data_ptr; 1524 1525 for (i = msg->dt.sent_sg_entries, j = 0; 1526 i < (msg->dt.sent_sg_entries + 1527 msg->dt.cur_sg_entries); i++, j++) { 1528 sgl[i].addr = msg->dt.sg_list[j].addr; 1529 sgl[i].len = msg->dt.sg_list[j].len; 1530 } 1531 1532 /* 1533 * If this is the last piece of the I/O, we've got 1534 * the full S/G list. Queue processing in the thread. 1535 * Otherwise wait for the next piece. 1536 */ 1537 if (msg->dt.sg_last != 0) 1538 ctl_enqueue_isc(io); 1539 break; 1540 } 1541 /* Performed on the Serializing (primary) SC, XFER mode only */ 1542 case CTL_MSG_DATAMOVE_DONE: { 1543 if (msg->hdr.serializing_sc == NULL) { 1544 printf("%s: serializing_sc == NULL!\n", 1545 __func__); 1546 /* XXX KDM now what? */ 1547 break; 1548 } 1549 /* 1550 * We grab the sense information here in case 1551 * there was a failure, so we can return status 1552 * back to the initiator. 1553 */ 1554 io = msg->hdr.serializing_sc; 1555 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 1556 io->io_hdr.flags &= ~CTL_FLAG_DMA_INPROG; 1557 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1558 io->io_hdr.port_status = msg->scsi.port_status; 1559 io->scsiio.kern_data_resid = msg->scsi.kern_data_resid; 1560 if (msg->hdr.status != CTL_STATUS_NONE) { 1561 io->io_hdr.status = msg->hdr.status; 1562 io->scsiio.scsi_status = msg->scsi.scsi_status; 1563 io->scsiio.sense_len = msg->scsi.sense_len; 1564 memcpy(&io->scsiio.sense_data, 1565 &msg->scsi.sense_data, 1566 msg->scsi.sense_len); 1567 if (msg->hdr.status == CTL_SUCCESS) 1568 io->io_hdr.flags |= CTL_FLAG_STATUS_SENT; 1569 } 1570 ctl_enqueue_isc(io); 1571 break; 1572 } 1573 1574 /* Preformed on Originating SC, SER_ONLY mode */ 1575 case CTL_MSG_R2R: 1576 io = msg->hdr.original_sc; 1577 if (io == NULL) { 1578 printf("%s: original_sc == NULL!\n", 1579 __func__); 1580 break; 1581 } 1582 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1583 io->io_hdr.msg_type = CTL_MSG_R2R; 1584 io->io_hdr.remote_io = msg->hdr.serializing_sc; 1585 ctl_enqueue_isc(io); 1586 break; 1587 1588 /* 1589 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 1590 * mode. 1591 * Performed on the Originating (i.e. secondary) SC in XFER 1592 * mode 1593 */ 1594 case CTL_MSG_FINISH_IO: 1595 if (softc->ha_mode == CTL_HA_MODE_XFER) 1596 ctl_isc_handler_finish_xfer(softc, msg); 1597 else 1598 ctl_isc_handler_finish_ser_only(softc, msg); 1599 break; 1600 1601 /* Preformed on Originating SC */ 1602 case CTL_MSG_BAD_JUJU: 1603 io = msg->hdr.original_sc; 1604 if (io == NULL) { 1605 printf("%s: Bad JUJU!, original_sc is NULL!\n", 1606 __func__); 1607 break; 1608 } 1609 ctl_copy_sense_data(msg, io); 1610 /* 1611 * IO should have already been cleaned up on other 1612 * SC so clear this flag so we won't send a message 1613 * back to finish the IO there. 1614 */ 1615 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 1616 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1617 1618 /* io = msg->hdr.serializing_sc; */ 1619 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 1620 ctl_enqueue_isc(io); 1621 break; 1622 1623 /* Handle resets sent from the other side */ 1624 case CTL_MSG_MANAGE_TASKS: { 1625 struct ctl_taskio *taskio; 1626 taskio = (struct ctl_taskio *)ctl_alloc_io( 1627 softc->othersc_pool); 1628 ctl_zero_io((union ctl_io *)taskio); 1629 taskio->io_hdr.io_type = CTL_IO_TASK; 1630 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1631 taskio->io_hdr.nexus = msg->hdr.nexus; 1632 taskio->task_action = msg->task.task_action; 1633 taskio->tag_num = msg->task.tag_num; 1634 taskio->tag_type = msg->task.tag_type; 1635#ifdef CTL_TIME_IO 1636 taskio->io_hdr.start_time = time_uptime; 1637 getbinuptime(&taskio->io_hdr.start_bt); 1638#endif /* CTL_TIME_IO */ 1639 ctl_run_task((union ctl_io *)taskio); 1640 break; 1641 } 1642 /* Persistent Reserve action which needs attention */ 1643 case CTL_MSG_PERS_ACTION: 1644 presio = (struct ctl_prio *)ctl_alloc_io( 1645 softc->othersc_pool); 1646 ctl_zero_io((union ctl_io *)presio); 1647 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 1648 presio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1649 presio->io_hdr.nexus = msg->hdr.nexus; 1650 presio->pr_msg = msg->pr; 1651 ctl_enqueue_isc((union ctl_io *)presio); 1652 break; 1653 case CTL_MSG_UA: 1654 ctl_isc_ua(softc, msg, param); 1655 break; 1656 case CTL_MSG_PORT_SYNC: 1657 ctl_isc_port_sync(softc, msg, param); 1658 break; 1659 case CTL_MSG_LUN_SYNC: 1660 ctl_isc_lun_sync(softc, msg, param); 1661 break; 1662 case CTL_MSG_IID_SYNC: 1663 ctl_isc_iid_sync(softc, msg, param); 1664 break; 1665 case CTL_MSG_LOGIN: 1666 ctl_isc_login(softc, msg, param); 1667 break; 1668 case CTL_MSG_MODE_SYNC: 1669 ctl_isc_mode_sync(softc, msg, param); 1670 break; 1671 default: 1672 printf("Received HA message of unknown type %d\n", 1673 msg->hdr.msg_type); 1674 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1675 break; 1676 } 1677 if (msg != &msgbuf) 1678 free(msg, M_CTL); 1679 } else if (event == CTL_HA_EVT_LINK_CHANGE) { 1680 printf("CTL: HA link status changed from %d to %d\n", 1681 softc->ha_link, param); 1682 if (param == softc->ha_link) 1683 return; 1684 if (softc->ha_link == CTL_HA_LINK_ONLINE) { 1685 softc->ha_link = param; 1686 ctl_isc_ha_link_down(softc); 1687 } else { 1688 softc->ha_link = param; 1689 if (softc->ha_link == CTL_HA_LINK_ONLINE) 1690 ctl_isc_ha_link_up(softc); 1691 } 1692 return; 1693 } else { 1694 printf("ctl_isc_event_handler: Unknown event %d\n", event); 1695 return; 1696 } 1697} 1698 1699static void 1700ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 1701{ 1702 1703 memcpy(&dest->scsiio.sense_data, &src->scsi.sense_data, 1704 src->scsi.sense_len); 1705 dest->scsiio.scsi_status = src->scsi.scsi_status; 1706 dest->scsiio.sense_len = src->scsi.sense_len; 1707 dest->io_hdr.status = src->hdr.status; 1708} 1709 1710static void 1711ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest) 1712{ 1713 1714 memcpy(&dest->scsi.sense_data, &src->scsiio.sense_data, 1715 src->scsiio.sense_len); 1716 dest->scsi.scsi_status = src->scsiio.scsi_status; 1717 dest->scsi.sense_len = src->scsiio.sense_len; 1718 dest->hdr.status = src->io_hdr.status; 1719} 1720 1721void 1722ctl_est_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1723{ 1724 struct ctl_softc *softc = lun->ctl_softc; 1725 ctl_ua_type *pu; 1726 1727 if (initidx < softc->init_min || initidx >= softc->init_max) 1728 return; 1729 mtx_assert(&lun->lun_lock, MA_OWNED); 1730 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1731 if (pu == NULL) 1732 return; 1733 pu[initidx % CTL_MAX_INIT_PER_PORT] |= ua; 1734} 1735 1736void 1737ctl_est_ua_port(struct ctl_lun *lun, int port, uint32_t except, ctl_ua_type ua) 1738{ 1739 int i; 1740 1741 mtx_assert(&lun->lun_lock, MA_OWNED); 1742 if (lun->pending_ua[port] == NULL) 1743 return; 1744 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1745 if (port * CTL_MAX_INIT_PER_PORT + i == except) 1746 continue; 1747 lun->pending_ua[port][i] |= ua; 1748 } 1749} 1750 1751void 1752ctl_est_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1753{ 1754 struct ctl_softc *softc = lun->ctl_softc; 1755 int i; 1756 1757 mtx_assert(&lun->lun_lock, MA_OWNED); 1758 for (i = softc->port_min; i < softc->port_max; i++) 1759 ctl_est_ua_port(lun, i, except, ua); 1760} 1761 1762void 1763ctl_clr_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1764{ 1765 struct ctl_softc *softc = lun->ctl_softc; 1766 ctl_ua_type *pu; 1767 1768 if (initidx < softc->init_min || initidx >= softc->init_max) 1769 return; 1770 mtx_assert(&lun->lun_lock, MA_OWNED); 1771 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1772 if (pu == NULL) 1773 return; 1774 pu[initidx % CTL_MAX_INIT_PER_PORT] &= ~ua; 1775} 1776 1777void 1778ctl_clr_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1779{ 1780 struct ctl_softc *softc = lun->ctl_softc; 1781 int i, j; 1782 1783 mtx_assert(&lun->lun_lock, MA_OWNED); 1784 for (i = softc->port_min; i < softc->port_max; i++) { 1785 if (lun->pending_ua[i] == NULL) 1786 continue; 1787 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 1788 if (i * CTL_MAX_INIT_PER_PORT + j == except) 1789 continue; 1790 lun->pending_ua[i][j] &= ~ua; 1791 } 1792 } 1793} 1794 1795void 1796ctl_clr_ua_allluns(struct ctl_softc *ctl_softc, uint32_t initidx, 1797 ctl_ua_type ua_type) 1798{ 1799 struct ctl_lun *lun; 1800 1801 mtx_assert(&ctl_softc->ctl_lock, MA_OWNED); 1802 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) { 1803 mtx_lock(&lun->lun_lock); 1804 ctl_clr_ua(lun, initidx, ua_type); 1805 mtx_unlock(&lun->lun_lock); 1806 } 1807} 1808 1809static int 1810ctl_ha_role_sysctl(SYSCTL_HANDLER_ARGS) 1811{ 1812 struct ctl_softc *softc = (struct ctl_softc *)arg1; 1813 struct ctl_lun *lun; 1814 struct ctl_lun_req ireq; 1815 int error, value; 1816 1817 value = (softc->flags & CTL_FLAG_ACTIVE_SHELF) ? 0 : 1; 1818 error = sysctl_handle_int(oidp, &value, 0, req); 1819 if ((error != 0) || (req->newptr == NULL)) 1820 return (error); 1821 1822 mtx_lock(&softc->ctl_lock); 1823 if (value == 0) 1824 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1825 else 1826 softc->flags &= ~CTL_FLAG_ACTIVE_SHELF; 1827 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1828 mtx_unlock(&softc->ctl_lock); 1829 bzero(&ireq, sizeof(ireq)); 1830 ireq.reqtype = CTL_LUNREQ_MODIFY; 1831 ireq.reqdata.modify.lun_id = lun->lun; 1832 lun->backend->ioctl(NULL, CTL_LUN_REQ, (caddr_t)&ireq, 0, 1833 curthread); 1834 if (ireq.status != CTL_LUN_OK) { 1835 printf("%s: CTL_LUNREQ_MODIFY returned %d '%s'\n", 1836 __func__, ireq.status, ireq.error_str); 1837 } 1838 mtx_lock(&softc->ctl_lock); 1839 } 1840 mtx_unlock(&softc->ctl_lock); 1841 return (0); 1842} 1843 1844static int 1845ctl_init(void) 1846{ 1847 struct make_dev_args args; 1848 struct ctl_softc *softc; 1849 int i, error; 1850 1851 softc = control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 1852 M_WAITOK | M_ZERO); 1853 1854 make_dev_args_init(&args); 1855 args.mda_devsw = &ctl_cdevsw; 1856 args.mda_uid = UID_ROOT; 1857 args.mda_gid = GID_OPERATOR; 1858 args.mda_mode = 0600; 1859 args.mda_si_drv1 = softc; 1860 error = make_dev_s(&args, &softc->dev, "cam/ctl"); 1861 if (error != 0) { 1862 free(softc, M_DEVBUF); 1863 control_softc = NULL; 1864 return (error); 1865 } 1866 1867 sysctl_ctx_init(&softc->sysctl_ctx); 1868 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1869 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 1870 CTLFLAG_RD, 0, "CAM Target Layer"); 1871 1872 if (softc->sysctl_tree == NULL) { 1873 printf("%s: unable to allocate sysctl tree\n", __func__); 1874 destroy_dev(softc->dev); 1875 free(softc, M_DEVBUF); 1876 control_softc = NULL; 1877 return (ENOMEM); 1878 } 1879 1880 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 1881 softc->io_zone = uma_zcreate("CTL IO", sizeof(union ctl_io), 1882 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); 1883 softc->flags = 0; 1884 1885 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1886 OID_AUTO, "ha_mode", CTLFLAG_RDTUN, (int *)&softc->ha_mode, 0, 1887 "HA mode (0 - act/stby, 1 - serialize only, 2 - xfer)"); 1888 1889 if (ctl_max_luns <= 0 || powerof2(ctl_max_luns) == 0) { 1890 printf("Bad value %d for kern.cam.ctl.max_luns, must be a power of two, using %d\n", 1891 ctl_max_luns, CTL_DEFAULT_MAX_LUNS); 1892 ctl_max_luns = CTL_DEFAULT_MAX_LUNS; 1893 } 1894 softc->ctl_luns = malloc(sizeof(struct ctl_lun *) * ctl_max_luns, 1895 M_DEVBUF, M_WAITOK | M_ZERO); 1896 softc->ctl_lun_mask = malloc(sizeof(uint32_t) * 1897 ((ctl_max_luns + 31) / 32), M_DEVBUF, M_WAITOK | M_ZERO); 1898 if (ctl_max_ports <= 0 || powerof2(ctl_max_ports) == 0) { 1899 printf("Bad value %d for kern.cam.ctl.max_ports, must be a power of two, using %d\n", 1900 ctl_max_ports, CTL_DEFAULT_MAX_PORTS); 1901 ctl_max_ports = CTL_DEFAULT_MAX_PORTS; 1902 } 1903 softc->ctl_port_mask = malloc(sizeof(uint32_t) * 1904 ((ctl_max_ports + 31) / 32), M_DEVBUF, M_WAITOK | M_ZERO); 1905 softc->ctl_ports = malloc(sizeof(struct ctl_port *) * ctl_max_ports, 1906 M_DEVBUF, M_WAITOK | M_ZERO); 1907 1908 1909 /* 1910 * In Copan's HA scheme, the "master" and "slave" roles are 1911 * figured out through the slot the controller is in. Although it 1912 * is an active/active system, someone has to be in charge. 1913 */ 1914 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1915 OID_AUTO, "ha_id", CTLFLAG_RDTUN, &softc->ha_id, 0, 1916 "HA head ID (0 - no HA)"); 1917 if (softc->ha_id == 0 || softc->ha_id > NUM_HA_SHELVES) { 1918 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1919 softc->is_single = 1; 1920 softc->port_cnt = ctl_max_ports; 1921 softc->port_min = 0; 1922 } else { 1923 softc->port_cnt = ctl_max_ports / NUM_HA_SHELVES; 1924 softc->port_min = (softc->ha_id - 1) * softc->port_cnt; 1925 } 1926 softc->port_max = softc->port_min + softc->port_cnt; 1927 softc->init_min = softc->port_min * CTL_MAX_INIT_PER_PORT; 1928 softc->init_max = softc->port_max * CTL_MAX_INIT_PER_PORT; 1929 1930 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1931 OID_AUTO, "ha_link", CTLFLAG_RD, (int *)&softc->ha_link, 0, 1932 "HA link state (0 - offline, 1 - unknown, 2 - online)"); 1933 1934 STAILQ_INIT(&softc->lun_list); 1935 STAILQ_INIT(&softc->pending_lun_queue); 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_lun_thread, softc, 1964 &softc->ctl_proc, &softc->lun_thread, 0, 0, "ctl", "lun"); 1965 if (error != 0) { 1966 printf("error creating CTL lun thread!\n"); 1967 return (error); 1968 } 1969 error = kproc_kthread_add(ctl_thresh_thread, softc, 1970 &softc->ctl_proc, &softc->thresh_thread, 0, 0, "ctl", "thresh"); 1971 if (error != 0) { 1972 printf("error creating CTL threshold thread!\n"); 1973 return (error); 1974 } 1975 1976 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1977 OID_AUTO, "ha_role", CTLTYPE_INT | CTLFLAG_RWTUN, 1978 softc, 0, ctl_ha_role_sysctl, "I", "HA role for this head"); 1979 1980 if (softc->is_single == 0) { 1981 if (ctl_frontend_register(&ha_frontend) != 0) 1982 softc->is_single = 1; 1983 } 1984 return (0); 1985} 1986 1987static int 1988ctl_shutdown(void) 1989{ 1990 struct ctl_softc *softc = control_softc; 1991 int i; 1992 1993 if (softc->is_single == 0) 1994 ctl_frontend_deregister(&ha_frontend); 1995 1996 destroy_dev(softc->dev); 1997 1998 /* Shutdown CTL threads. */ 1999 softc->shutdown = 1; 2000 for (i = 0; i < worker_threads; i++) { 2001 struct ctl_thread *thr = &softc->threads[i]; 2002 while (thr->thread != NULL) { 2003 wakeup(thr); 2004 if (thr->thread != NULL) 2005 pause("CTL thr shutdown", 1); 2006 } 2007 mtx_destroy(&thr->queue_lock); 2008 } 2009 while (softc->lun_thread != NULL) { 2010 wakeup(&softc->pending_lun_queue); 2011 if (softc->lun_thread != NULL) 2012 pause("CTL thr shutdown", 1); 2013 } 2014 while (softc->thresh_thread != NULL) { 2015 wakeup(softc->thresh_thread); 2016 if (softc->thresh_thread != NULL) 2017 pause("CTL thr shutdown", 1); 2018 } 2019 2020 ctl_tpc_shutdown(softc); 2021 uma_zdestroy(softc->io_zone); 2022 mtx_destroy(&softc->ctl_lock); 2023 2024 free(softc->ctl_luns, M_DEVBUF); 2025 free(softc->ctl_lun_mask, M_DEVBUF); 2026 free(softc->ctl_port_mask, M_DEVBUF); 2027 free(softc->ctl_ports, M_DEVBUF); 2028 2029 sysctl_ctx_free(&softc->sysctl_ctx); 2030 2031 free(softc, M_DEVBUF); 2032 control_softc = NULL; 2033 return (0); 2034} 2035 2036static int 2037ctl_module_event_handler(module_t mod, int what, void *arg) 2038{ 2039 2040 switch (what) { 2041 case MOD_LOAD: 2042 return (ctl_init()); 2043 case MOD_UNLOAD: 2044 return (ctl_shutdown()); 2045 default: 2046 return (EOPNOTSUPP); 2047 } 2048} 2049 2050/* 2051 * XXX KDM should we do some access checks here? Bump a reference count to 2052 * prevent a CTL module from being unloaded while someone has it open? 2053 */ 2054static int 2055ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 2056{ 2057 return (0); 2058} 2059 2060static int 2061ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 2062{ 2063 return (0); 2064} 2065 2066/* 2067 * Remove an initiator by port number and initiator ID. 2068 * Returns 0 for success, -1 for failure. 2069 */ 2070int 2071ctl_remove_initiator(struct ctl_port *port, int iid) 2072{ 2073 struct ctl_softc *softc = port->ctl_softc; 2074 int last; 2075 2076 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 2077 2078 if (iid > CTL_MAX_INIT_PER_PORT) { 2079 printf("%s: initiator ID %u > maximun %u!\n", 2080 __func__, iid, CTL_MAX_INIT_PER_PORT); 2081 return (-1); 2082 } 2083 2084 mtx_lock(&softc->ctl_lock); 2085 last = (--port->wwpn_iid[iid].in_use == 0); 2086 port->wwpn_iid[iid].last_use = time_uptime; 2087 mtx_unlock(&softc->ctl_lock); 2088 if (last) 2089 ctl_i_t_nexus_loss(softc, iid, CTL_UA_POWERON); 2090 ctl_isc_announce_iid(port, iid); 2091 2092 return (0); 2093} 2094 2095/* 2096 * Add an initiator to the initiator map. 2097 * Returns iid for success, < 0 for failure. 2098 */ 2099int 2100ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 2101{ 2102 struct ctl_softc *softc = port->ctl_softc; 2103 time_t best_time; 2104 int i, best; 2105 2106 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 2107 2108 if (iid >= CTL_MAX_INIT_PER_PORT) { 2109 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 2110 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 2111 free(name, M_CTL); 2112 return (-1); 2113 } 2114 2115 mtx_lock(&softc->ctl_lock); 2116 2117 if (iid < 0 && (wwpn != 0 || name != NULL)) { 2118 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2119 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 2120 iid = i; 2121 break; 2122 } 2123 if (name != NULL && port->wwpn_iid[i].name != NULL && 2124 strcmp(name, port->wwpn_iid[i].name) == 0) { 2125 iid = i; 2126 break; 2127 } 2128 } 2129 } 2130 2131 if (iid < 0) { 2132 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2133 if (port->wwpn_iid[i].in_use == 0 && 2134 port->wwpn_iid[i].wwpn == 0 && 2135 port->wwpn_iid[i].name == NULL) { 2136 iid = i; 2137 break; 2138 } 2139 } 2140 } 2141 2142 if (iid < 0) { 2143 best = -1; 2144 best_time = INT32_MAX; 2145 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2146 if (port->wwpn_iid[i].in_use == 0) { 2147 if (port->wwpn_iid[i].last_use < best_time) { 2148 best = i; 2149 best_time = port->wwpn_iid[i].last_use; 2150 } 2151 } 2152 } 2153 iid = best; 2154 } 2155 2156 if (iid < 0) { 2157 mtx_unlock(&softc->ctl_lock); 2158 free(name, M_CTL); 2159 return (-2); 2160 } 2161 2162 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 2163 /* 2164 * This is not an error yet. 2165 */ 2166 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 2167#if 0 2168 printf("%s: port %d iid %u WWPN %#jx arrived" 2169 " again\n", __func__, port->targ_port, 2170 iid, (uintmax_t)wwpn); 2171#endif 2172 goto take; 2173 } 2174 if (name != NULL && port->wwpn_iid[iid].name != NULL && 2175 strcmp(name, port->wwpn_iid[iid].name) == 0) { 2176#if 0 2177 printf("%s: port %d iid %u name '%s' arrived" 2178 " again\n", __func__, port->targ_port, 2179 iid, name); 2180#endif 2181 goto take; 2182 } 2183 2184 /* 2185 * This is an error, but what do we do about it? The 2186 * driver is telling us we have a new WWPN for this 2187 * initiator ID, so we pretty much need to use it. 2188 */ 2189 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 2190 " but WWPN %#jx '%s' is still at that address\n", 2191 __func__, port->targ_port, iid, wwpn, name, 2192 (uintmax_t)port->wwpn_iid[iid].wwpn, 2193 port->wwpn_iid[iid].name); 2194 } 2195take: 2196 free(port->wwpn_iid[iid].name, M_CTL); 2197 port->wwpn_iid[iid].name = name; 2198 port->wwpn_iid[iid].wwpn = wwpn; 2199 port->wwpn_iid[iid].in_use++; 2200 mtx_unlock(&softc->ctl_lock); 2201 ctl_isc_announce_iid(port, iid); 2202 2203 return (iid); 2204} 2205 2206static int 2207ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 2208{ 2209 int len; 2210 2211 switch (port->port_type) { 2212 case CTL_PORT_FC: 2213 { 2214 struct scsi_transportid_fcp *id = 2215 (struct scsi_transportid_fcp *)buf; 2216 if (port->wwpn_iid[iid].wwpn == 0) 2217 return (0); 2218 memset(id, 0, sizeof(*id)); 2219 id->format_protocol = SCSI_PROTO_FC; 2220 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 2221 return (sizeof(*id)); 2222 } 2223 case CTL_PORT_ISCSI: 2224 { 2225 struct scsi_transportid_iscsi_port *id = 2226 (struct scsi_transportid_iscsi_port *)buf; 2227 if (port->wwpn_iid[iid].name == NULL) 2228 return (0); 2229 memset(id, 0, 256); 2230 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 2231 SCSI_PROTO_ISCSI; 2232 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 2233 len = roundup2(min(len, 252), 4); 2234 scsi_ulto2b(len, id->additional_length); 2235 return (sizeof(*id) + len); 2236 } 2237 case CTL_PORT_SAS: 2238 { 2239 struct scsi_transportid_sas *id = 2240 (struct scsi_transportid_sas *)buf; 2241 if (port->wwpn_iid[iid].wwpn == 0) 2242 return (0); 2243 memset(id, 0, sizeof(*id)); 2244 id->format_protocol = SCSI_PROTO_SAS; 2245 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 2246 return (sizeof(*id)); 2247 } 2248 default: 2249 { 2250 struct scsi_transportid_spi *id = 2251 (struct scsi_transportid_spi *)buf; 2252 memset(id, 0, sizeof(*id)); 2253 id->format_protocol = SCSI_PROTO_SPI; 2254 scsi_ulto2b(iid, id->scsi_addr); 2255 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 2256 return (sizeof(*id)); 2257 } 2258 } 2259} 2260 2261/* 2262 * Serialize a command that went down the "wrong" side, and so was sent to 2263 * this controller for execution. The logic is a little different than the 2264 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 2265 * sent back to the other side, but in the success case, we execute the 2266 * command on this side (XFER mode) or tell the other side to execute it 2267 * (SER_ONLY mode). 2268 */ 2269static void 2270ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 2271{ 2272 struct ctl_softc *softc = CTL_SOFTC(ctsio); 2273 struct ctl_port *port = CTL_PORT(ctsio); 2274 union ctl_ha_msg msg_info; 2275 struct ctl_lun *lun; 2276 const struct ctl_cmd_entry *entry; 2277 uint32_t targ_lun; 2278 2279 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 2280 2281 /* Make sure that we know about this port. */ 2282 if (port == NULL || (port->status & CTL_PORT_STATUS_ONLINE) == 0) { 2283 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 2284 /*retry_count*/ 1); 2285 goto badjuju; 2286 } 2287 2288 /* Make sure that we know about this LUN. */ 2289 mtx_lock(&softc->ctl_lock); 2290 if (targ_lun >= ctl_max_luns || 2291 (lun = softc->ctl_luns[targ_lun]) == NULL) { 2292 mtx_unlock(&softc->ctl_lock); 2293 2294 /* 2295 * The other node would not send this request to us unless 2296 * received announce that we are primary node for this LUN. 2297 * If this LUN does not exist now, it is probably result of 2298 * a race, so respond to initiator in the most opaque way. 2299 */ 2300 ctl_set_busy(ctsio); 2301 goto badjuju; 2302 } 2303 mtx_lock(&lun->lun_lock); 2304 mtx_unlock(&softc->ctl_lock); 2305 2306 /* 2307 * If the LUN is invalid, pretend that it doesn't exist. 2308 * It will go away as soon as all pending I/Os completed. 2309 */ 2310 if (lun->flags & CTL_LUN_DISABLED) { 2311 mtx_unlock(&lun->lun_lock); 2312 ctl_set_busy(ctsio); 2313 goto badjuju; 2314 } 2315 2316 entry = ctl_get_cmd_entry(ctsio, NULL); 2317 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 2318 mtx_unlock(&lun->lun_lock); 2319 goto badjuju; 2320 } 2321 2322 CTL_LUN(ctsio) = lun; 2323 CTL_BACKEND_LUN(ctsio) = lun->be_lun; 2324 2325 /* 2326 * Every I/O goes into the OOA queue for a 2327 * particular LUN, and stays there until completion. 2328 */ 2329#ifdef CTL_TIME_IO 2330 if (TAILQ_EMPTY(&lun->ooa_queue)) 2331 lun->idle_time += getsbinuptime() - lun->last_busy; 2332#endif 2333 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2334 2335 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 2336 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 2337 ooa_links))) { 2338 case CTL_ACTION_BLOCK: 2339 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 2340 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 2341 blocked_links); 2342 mtx_unlock(&lun->lun_lock); 2343 break; 2344 case CTL_ACTION_PASS: 2345 case CTL_ACTION_SKIP: 2346 if (softc->ha_mode == CTL_HA_MODE_XFER) { 2347 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 2348 ctl_enqueue_rtr((union ctl_io *)ctsio); 2349 mtx_unlock(&lun->lun_lock); 2350 } else { 2351 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 2352 mtx_unlock(&lun->lun_lock); 2353 2354 /* send msg back to other side */ 2355 msg_info.hdr.original_sc = ctsio->io_hdr.remote_io; 2356 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 2357 msg_info.hdr.msg_type = CTL_MSG_R2R; 2358 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2359 sizeof(msg_info.hdr), M_WAITOK); 2360 } 2361 break; 2362 case CTL_ACTION_OVERLAP: 2363 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2364 mtx_unlock(&lun->lun_lock); 2365 ctl_set_overlapped_cmd(ctsio); 2366 goto badjuju; 2367 case CTL_ACTION_OVERLAP_TAG: 2368 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2369 mtx_unlock(&lun->lun_lock); 2370 ctl_set_overlapped_tag(ctsio, ctsio->tag_num); 2371 goto badjuju; 2372 case CTL_ACTION_ERROR: 2373 default: 2374 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2375 mtx_unlock(&lun->lun_lock); 2376 2377 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 2378 /*retry_count*/ 0); 2379badjuju: 2380 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 2381 msg_info.hdr.original_sc = ctsio->io_hdr.remote_io; 2382 msg_info.hdr.serializing_sc = NULL; 2383 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 2384 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2385 sizeof(msg_info.scsi), M_WAITOK); 2386 ctl_free_io((union ctl_io *)ctsio); 2387 break; 2388 } 2389} 2390 2391/* 2392 * Returns 0 for success, errno for failure. 2393 */ 2394static void 2395ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2396 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2397{ 2398 union ctl_io *io; 2399 2400 mtx_lock(&lun->lun_lock); 2401 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2402 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2403 ooa_links)) { 2404 struct ctl_ooa_entry *entry; 2405 2406 /* 2407 * If we've got more than we can fit, just count the 2408 * remaining entries. 2409 */ 2410 if (*cur_fill_num >= ooa_hdr->alloc_num) 2411 continue; 2412 2413 entry = &kern_entries[*cur_fill_num]; 2414 2415 entry->tag_num = io->scsiio.tag_num; 2416 entry->lun_num = lun->lun; 2417#ifdef CTL_TIME_IO 2418 entry->start_bt = io->io_hdr.start_bt; 2419#endif 2420 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2421 entry->cdb_len = io->scsiio.cdb_len; 2422 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2423 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2424 2425 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2426 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2427 2428 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2429 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2430 2431 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2432 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2433 2434 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2435 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2436 } 2437 mtx_unlock(&lun->lun_lock); 2438} 2439 2440static void * 2441ctl_copyin_alloc(void *user_addr, unsigned int len, char *error_str, 2442 size_t error_str_len) 2443{ 2444 void *kptr; 2445 2446 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2447 2448 if (copyin(user_addr, kptr, len) != 0) { 2449 snprintf(error_str, error_str_len, "Error copying %d bytes " 2450 "from user address %p to kernel address %p", len, 2451 user_addr, kptr); 2452 free(kptr, M_CTL); 2453 return (NULL); 2454 } 2455 2456 return (kptr); 2457} 2458 2459static void 2460ctl_free_args(int num_args, struct ctl_be_arg *args) 2461{ 2462 int i; 2463 2464 if (args == NULL) 2465 return; 2466 2467 for (i = 0; i < num_args; i++) { 2468 free(args[i].kname, M_CTL); 2469 free(args[i].kvalue, M_CTL); 2470 } 2471 2472 free(args, M_CTL); 2473} 2474 2475static struct ctl_be_arg * 2476ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2477 char *error_str, size_t error_str_len) 2478{ 2479 struct ctl_be_arg *args; 2480 int i; 2481 2482 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2483 error_str, error_str_len); 2484 2485 if (args == NULL) 2486 goto bailout; 2487 2488 for (i = 0; i < num_args; i++) { 2489 args[i].kname = NULL; 2490 args[i].kvalue = NULL; 2491 } 2492 2493 for (i = 0; i < num_args; i++) { 2494 uint8_t *tmpptr; 2495 2496 if (args[i].namelen == 0) { 2497 snprintf(error_str, error_str_len, "Argument %d " 2498 "name length is zero", i); 2499 goto bailout; 2500 } 2501 2502 args[i].kname = ctl_copyin_alloc(args[i].name, 2503 args[i].namelen, error_str, error_str_len); 2504 if (args[i].kname == NULL) 2505 goto bailout; 2506 2507 if (args[i].kname[args[i].namelen - 1] != '\0') { 2508 snprintf(error_str, error_str_len, "Argument %d " 2509 "name is not NUL-terminated", i); 2510 goto bailout; 2511 } 2512 2513 if (args[i].flags & CTL_BEARG_RD) { 2514 if (args[i].vallen == 0) { 2515 snprintf(error_str, error_str_len, "Argument %d " 2516 "value length is zero", i); 2517 goto bailout; 2518 } 2519 2520 tmpptr = ctl_copyin_alloc(args[i].value, 2521 args[i].vallen, error_str, error_str_len); 2522 if (tmpptr == NULL) 2523 goto bailout; 2524 2525 if ((args[i].flags & CTL_BEARG_ASCII) 2526 && (tmpptr[args[i].vallen - 1] != '\0')) { 2527 snprintf(error_str, error_str_len, "Argument " 2528 "%d value is not NUL-terminated", i); 2529 free(tmpptr, M_CTL); 2530 goto bailout; 2531 } 2532 args[i].kvalue = tmpptr; 2533 } else { 2534 args[i].kvalue = malloc(args[i].vallen, 2535 M_CTL, M_WAITOK | M_ZERO); 2536 } 2537 } 2538 2539 return (args); 2540bailout: 2541 2542 ctl_free_args(num_args, args); 2543 2544 return (NULL); 2545} 2546 2547static void 2548ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2549{ 2550 int i; 2551 2552 for (i = 0; i < num_args; i++) { 2553 if (args[i].flags & CTL_BEARG_WR) 2554 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2555 } 2556} 2557 2558/* 2559 * Escape characters that are illegal or not recommended in XML. 2560 */ 2561int 2562ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size) 2563{ 2564 char *end = str + size; 2565 int retval; 2566 2567 retval = 0; 2568 2569 for (; *str && str < end; str++) { 2570 switch (*str) { 2571 case '&': 2572 retval = sbuf_printf(sb, "&"); 2573 break; 2574 case '>': 2575 retval = sbuf_printf(sb, ">"); 2576 break; 2577 case '<': 2578 retval = sbuf_printf(sb, "<"); 2579 break; 2580 default: 2581 retval = sbuf_putc(sb, *str); 2582 break; 2583 } 2584 2585 if (retval != 0) 2586 break; 2587 2588 } 2589 2590 return (retval); 2591} 2592 2593static void 2594ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2595{ 2596 struct scsi_vpd_id_descriptor *desc; 2597 int i; 2598 2599 if (id == NULL || id->len < 4) 2600 return; 2601 desc = (struct scsi_vpd_id_descriptor *)id->data; 2602 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2603 case SVPD_ID_TYPE_T10: 2604 sbuf_printf(sb, "t10."); 2605 break; 2606 case SVPD_ID_TYPE_EUI64: 2607 sbuf_printf(sb, "eui."); 2608 break; 2609 case SVPD_ID_TYPE_NAA: 2610 sbuf_printf(sb, "naa."); 2611 break; 2612 case SVPD_ID_TYPE_SCSI_NAME: 2613 break; 2614 } 2615 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2616 case SVPD_ID_CODESET_BINARY: 2617 for (i = 0; i < desc->length; i++) 2618 sbuf_printf(sb, "%02x", desc->identifier[i]); 2619 break; 2620 case SVPD_ID_CODESET_ASCII: 2621 sbuf_printf(sb, "%.*s", (int)desc->length, 2622 (char *)desc->identifier); 2623 break; 2624 case SVPD_ID_CODESET_UTF8: 2625 sbuf_printf(sb, "%s", (char *)desc->identifier); 2626 break; 2627 } 2628} 2629 2630static int 2631ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2632 struct thread *td) 2633{ 2634 struct ctl_softc *softc = dev->si_drv1; 2635 struct ctl_port *port; 2636 struct ctl_lun *lun; 2637 int retval; 2638 2639 retval = 0; 2640 2641 switch (cmd) { 2642 case CTL_IO: 2643 retval = ctl_ioctl_io(dev, cmd, addr, flag, td); 2644 break; 2645 case CTL_ENABLE_PORT: 2646 case CTL_DISABLE_PORT: 2647 case CTL_SET_PORT_WWNS: { 2648 struct ctl_port *port; 2649 struct ctl_port_entry *entry; 2650 2651 entry = (struct ctl_port_entry *)addr; 2652 2653 mtx_lock(&softc->ctl_lock); 2654 STAILQ_FOREACH(port, &softc->port_list, links) { 2655 int action, done; 2656 2657 if (port->targ_port < softc->port_min || 2658 port->targ_port >= softc->port_max) 2659 continue; 2660 2661 action = 0; 2662 done = 0; 2663 if ((entry->port_type == CTL_PORT_NONE) 2664 && (entry->targ_port == port->targ_port)) { 2665 /* 2666 * If the user only wants to enable or 2667 * disable or set WWNs on a specific port, 2668 * do the operation and we're done. 2669 */ 2670 action = 1; 2671 done = 1; 2672 } else if (entry->port_type & port->port_type) { 2673 /* 2674 * Compare the user's type mask with the 2675 * particular frontend type to see if we 2676 * have a match. 2677 */ 2678 action = 1; 2679 done = 0; 2680 2681 /* 2682 * Make sure the user isn't trying to set 2683 * WWNs on multiple ports at the same time. 2684 */ 2685 if (cmd == CTL_SET_PORT_WWNS) { 2686 printf("%s: Can't set WWNs on " 2687 "multiple ports\n", __func__); 2688 retval = EINVAL; 2689 break; 2690 } 2691 } 2692 if (action == 0) 2693 continue; 2694 2695 /* 2696 * XXX KDM we have to drop the lock here, because 2697 * the online/offline operations can potentially 2698 * block. We need to reference count the frontends 2699 * so they can't go away, 2700 */ 2701 if (cmd == CTL_ENABLE_PORT) { 2702 mtx_unlock(&softc->ctl_lock); 2703 ctl_port_online(port); 2704 mtx_lock(&softc->ctl_lock); 2705 } else if (cmd == CTL_DISABLE_PORT) { 2706 mtx_unlock(&softc->ctl_lock); 2707 ctl_port_offline(port); 2708 mtx_lock(&softc->ctl_lock); 2709 } else if (cmd == CTL_SET_PORT_WWNS) { 2710 ctl_port_set_wwns(port, 2711 (entry->flags & CTL_PORT_WWNN_VALID) ? 2712 1 : 0, entry->wwnn, 2713 (entry->flags & CTL_PORT_WWPN_VALID) ? 2714 1 : 0, entry->wwpn); 2715 } 2716 if (done != 0) 2717 break; 2718 } 2719 mtx_unlock(&softc->ctl_lock); 2720 break; 2721 } 2722 case CTL_GET_OOA: { 2723 struct ctl_ooa *ooa_hdr; 2724 struct ctl_ooa_entry *entries; 2725 uint32_t cur_fill_num; 2726 2727 ooa_hdr = (struct ctl_ooa *)addr; 2728 2729 if ((ooa_hdr->alloc_len == 0) 2730 || (ooa_hdr->alloc_num == 0)) { 2731 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2732 "must be non-zero\n", __func__, 2733 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2734 retval = EINVAL; 2735 break; 2736 } 2737 2738 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2739 sizeof(struct ctl_ooa_entry))) { 2740 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2741 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2742 __func__, ooa_hdr->alloc_len, 2743 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2744 retval = EINVAL; 2745 break; 2746 } 2747 2748 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2749 if (entries == NULL) { 2750 printf("%s: could not allocate %d bytes for OOA " 2751 "dump\n", __func__, ooa_hdr->alloc_len); 2752 retval = ENOMEM; 2753 break; 2754 } 2755 2756 mtx_lock(&softc->ctl_lock); 2757 if ((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0 && 2758 (ooa_hdr->lun_num >= ctl_max_luns || 2759 softc->ctl_luns[ooa_hdr->lun_num] == NULL)) { 2760 mtx_unlock(&softc->ctl_lock); 2761 free(entries, M_CTL); 2762 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2763 __func__, (uintmax_t)ooa_hdr->lun_num); 2764 retval = EINVAL; 2765 break; 2766 } 2767 2768 cur_fill_num = 0; 2769 2770 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2771 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2772 ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2773 ooa_hdr, entries); 2774 } 2775 } else { 2776 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2777 ctl_ioctl_fill_ooa(lun, &cur_fill_num, ooa_hdr, 2778 entries); 2779 } 2780 mtx_unlock(&softc->ctl_lock); 2781 2782 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2783 ooa_hdr->fill_len = ooa_hdr->fill_num * 2784 sizeof(struct ctl_ooa_entry); 2785 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2786 if (retval != 0) { 2787 printf("%s: error copying out %d bytes for OOA dump\n", 2788 __func__, ooa_hdr->fill_len); 2789 } 2790 2791 getbinuptime(&ooa_hdr->cur_bt); 2792 2793 if (cur_fill_num > ooa_hdr->alloc_num) { 2794 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2795 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2796 } else { 2797 ooa_hdr->dropped_num = 0; 2798 ooa_hdr->status = CTL_OOA_OK; 2799 } 2800 2801 free(entries, M_CTL); 2802 break; 2803 } 2804 case CTL_DELAY_IO: { 2805 struct ctl_io_delay_info *delay_info; 2806 2807 delay_info = (struct ctl_io_delay_info *)addr; 2808 2809#ifdef CTL_IO_DELAY 2810 mtx_lock(&softc->ctl_lock); 2811 if (delay_info->lun_id >= ctl_max_luns || 2812 (lun = softc->ctl_luns[delay_info->lun_id]) == NULL) { 2813 mtx_unlock(&softc->ctl_lock); 2814 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2815 break; 2816 } 2817 mtx_lock(&lun->lun_lock); 2818 mtx_unlock(&softc->ctl_lock); 2819 delay_info->status = CTL_DELAY_STATUS_OK; 2820 switch (delay_info->delay_type) { 2821 case CTL_DELAY_TYPE_CONT: 2822 case CTL_DELAY_TYPE_ONESHOT: 2823 break; 2824 default: 2825 delay_info->status = CTL_DELAY_STATUS_INVALID_TYPE; 2826 break; 2827 } 2828 switch (delay_info->delay_loc) { 2829 case CTL_DELAY_LOC_DATAMOVE: 2830 lun->delay_info.datamove_type = delay_info->delay_type; 2831 lun->delay_info.datamove_delay = delay_info->delay_secs; 2832 break; 2833 case CTL_DELAY_LOC_DONE: 2834 lun->delay_info.done_type = delay_info->delay_type; 2835 lun->delay_info.done_delay = delay_info->delay_secs; 2836 break; 2837 default: 2838 delay_info->status = CTL_DELAY_STATUS_INVALID_LOC; 2839 break; 2840 } 2841 mtx_unlock(&lun->lun_lock); 2842#else 2843 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2844#endif /* CTL_IO_DELAY */ 2845 break; 2846 } 2847#ifdef CTL_LEGACY_STATS 2848 case CTL_GETSTATS: { 2849 struct ctl_stats *stats = (struct ctl_stats *)addr; 2850 int i; 2851 2852 /* 2853 * XXX KDM no locking here. If the LUN list changes, 2854 * things can blow up. 2855 */ 2856 i = 0; 2857 stats->status = CTL_SS_OK; 2858 stats->fill_len = 0; 2859 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2860 if (stats->fill_len + sizeof(lun->legacy_stats) > 2861 stats->alloc_len) { 2862 stats->status = CTL_SS_NEED_MORE_SPACE; 2863 break; 2864 } 2865 retval = copyout(&lun->legacy_stats, &stats->lun_stats[i++], 2866 sizeof(lun->legacy_stats)); 2867 if (retval != 0) 2868 break; 2869 stats->fill_len += sizeof(lun->legacy_stats); 2870 } 2871 stats->num_luns = softc->num_luns; 2872 stats->flags = CTL_STATS_FLAG_NONE; 2873#ifdef CTL_TIME_IO 2874 stats->flags |= CTL_STATS_FLAG_TIME_VALID; 2875#endif 2876 getnanouptime(&stats->timestamp); 2877 break; 2878 } 2879#endif /* CTL_LEGACY_STATS */ 2880 case CTL_ERROR_INJECT: { 2881 struct ctl_error_desc *err_desc, *new_err_desc; 2882 2883 err_desc = (struct ctl_error_desc *)addr; 2884 2885 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2886 M_WAITOK | M_ZERO); 2887 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2888 2889 mtx_lock(&softc->ctl_lock); 2890 if (err_desc->lun_id >= ctl_max_luns || 2891 (lun = softc->ctl_luns[err_desc->lun_id]) == NULL) { 2892 mtx_unlock(&softc->ctl_lock); 2893 free(new_err_desc, M_CTL); 2894 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2895 __func__, (uintmax_t)err_desc->lun_id); 2896 retval = EINVAL; 2897 break; 2898 } 2899 mtx_lock(&lun->lun_lock); 2900 mtx_unlock(&softc->ctl_lock); 2901 2902 /* 2903 * We could do some checking here to verify the validity 2904 * of the request, but given the complexity of error 2905 * injection requests, the checking logic would be fairly 2906 * complex. 2907 * 2908 * For now, if the request is invalid, it just won't get 2909 * executed and might get deleted. 2910 */ 2911 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2912 2913 /* 2914 * XXX KDM check to make sure the serial number is unique, 2915 * in case we somehow manage to wrap. That shouldn't 2916 * happen for a very long time, but it's the right thing to 2917 * do. 2918 */ 2919 new_err_desc->serial = lun->error_serial; 2920 err_desc->serial = lun->error_serial; 2921 lun->error_serial++; 2922 2923 mtx_unlock(&lun->lun_lock); 2924 break; 2925 } 2926 case CTL_ERROR_INJECT_DELETE: { 2927 struct ctl_error_desc *delete_desc, *desc, *desc2; 2928 int delete_done; 2929 2930 delete_desc = (struct ctl_error_desc *)addr; 2931 delete_done = 0; 2932 2933 mtx_lock(&softc->ctl_lock); 2934 if (delete_desc->lun_id >= ctl_max_luns || 2935 (lun = softc->ctl_luns[delete_desc->lun_id]) == NULL) { 2936 mtx_unlock(&softc->ctl_lock); 2937 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2938 __func__, (uintmax_t)delete_desc->lun_id); 2939 retval = EINVAL; 2940 break; 2941 } 2942 mtx_lock(&lun->lun_lock); 2943 mtx_unlock(&softc->ctl_lock); 2944 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2945 if (desc->serial != delete_desc->serial) 2946 continue; 2947 2948 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2949 links); 2950 free(desc, M_CTL); 2951 delete_done = 1; 2952 } 2953 mtx_unlock(&lun->lun_lock); 2954 if (delete_done == 0) { 2955 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2956 "error serial %ju on LUN %u\n", __func__, 2957 delete_desc->serial, delete_desc->lun_id); 2958 retval = EINVAL; 2959 break; 2960 } 2961 break; 2962 } 2963 case CTL_DUMP_STRUCTS: { 2964 int j, k; 2965 struct ctl_port *port; 2966 struct ctl_frontend *fe; 2967 2968 mtx_lock(&softc->ctl_lock); 2969 printf("CTL Persistent Reservation information start:\n"); 2970 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2971 mtx_lock(&lun->lun_lock); 2972 if ((lun->flags & CTL_LUN_DISABLED) != 0) { 2973 mtx_unlock(&lun->lun_lock); 2974 continue; 2975 } 2976 2977 for (j = 0; j < ctl_max_ports; j++) { 2978 if (lun->pr_keys[j] == NULL) 2979 continue; 2980 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2981 if (lun->pr_keys[j][k] == 0) 2982 continue; 2983 printf(" LUN %ju port %d iid %d key " 2984 "%#jx\n", lun->lun, j, k, 2985 (uintmax_t)lun->pr_keys[j][k]); 2986 } 2987 } 2988 mtx_unlock(&lun->lun_lock); 2989 } 2990 printf("CTL Persistent Reservation information end\n"); 2991 printf("CTL Ports:\n"); 2992 STAILQ_FOREACH(port, &softc->port_list, links) { 2993 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 2994 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 2995 port->frontend->name, port->port_type, 2996 port->physical_port, port->virtual_port, 2997 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 2998 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 2999 if (port->wwpn_iid[j].in_use == 0 && 3000 port->wwpn_iid[j].wwpn == 0 && 3001 port->wwpn_iid[j].name == NULL) 3002 continue; 3003 3004 printf(" iid %u use %d WWPN %#jx '%s'\n", 3005 j, port->wwpn_iid[j].in_use, 3006 (uintmax_t)port->wwpn_iid[j].wwpn, 3007 port->wwpn_iid[j].name); 3008 } 3009 } 3010 printf("CTL Port information end\n"); 3011 mtx_unlock(&softc->ctl_lock); 3012 /* 3013 * XXX KDM calling this without a lock. We'd likely want 3014 * to drop the lock before calling the frontend's dump 3015 * routine anyway. 3016 */ 3017 printf("CTL Frontends:\n"); 3018 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3019 printf(" Frontend '%s'\n", fe->name); 3020 if (fe->fe_dump != NULL) 3021 fe->fe_dump(); 3022 } 3023 printf("CTL Frontend information end\n"); 3024 break; 3025 } 3026 case CTL_LUN_REQ: { 3027 struct ctl_lun_req *lun_req; 3028 struct ctl_backend_driver *backend; 3029 3030 lun_req = (struct ctl_lun_req *)addr; 3031 3032 backend = ctl_backend_find(lun_req->backend); 3033 if (backend == NULL) { 3034 lun_req->status = CTL_LUN_ERROR; 3035 snprintf(lun_req->error_str, 3036 sizeof(lun_req->error_str), 3037 "Backend \"%s\" not found.", 3038 lun_req->backend); 3039 break; 3040 } 3041 if (lun_req->num_be_args > 0) { 3042 lun_req->kern_be_args = ctl_copyin_args( 3043 lun_req->num_be_args, 3044 lun_req->be_args, 3045 lun_req->error_str, 3046 sizeof(lun_req->error_str)); 3047 if (lun_req->kern_be_args == NULL) { 3048 lun_req->status = CTL_LUN_ERROR; 3049 break; 3050 } 3051 } 3052 3053 retval = backend->ioctl(dev, cmd, addr, flag, td); 3054 3055 if (lun_req->num_be_args > 0) { 3056 ctl_copyout_args(lun_req->num_be_args, 3057 lun_req->kern_be_args); 3058 ctl_free_args(lun_req->num_be_args, 3059 lun_req->kern_be_args); 3060 } 3061 break; 3062 } 3063 case CTL_LUN_LIST: { 3064 struct sbuf *sb; 3065 struct ctl_lun_list *list; 3066 struct ctl_option *opt; 3067 3068 list = (struct ctl_lun_list *)addr; 3069 3070 /* 3071 * Allocate a fixed length sbuf here, based on the length 3072 * of the user's buffer. We could allocate an auto-extending 3073 * buffer, and then tell the user how much larger our 3074 * amount of data is than his buffer, but that presents 3075 * some problems: 3076 * 3077 * 1. The sbuf(9) routines use a blocking malloc, and so 3078 * we can't hold a lock while calling them with an 3079 * auto-extending buffer. 3080 * 3081 * 2. There is not currently a LUN reference counting 3082 * mechanism, outside of outstanding transactions on 3083 * the LUN's OOA queue. So a LUN could go away on us 3084 * while we're getting the LUN number, backend-specific 3085 * information, etc. Thus, given the way things 3086 * currently work, we need to hold the CTL lock while 3087 * grabbing LUN information. 3088 * 3089 * So, from the user's standpoint, the best thing to do is 3090 * allocate what he thinks is a reasonable buffer length, 3091 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3092 * double the buffer length and try again. (And repeat 3093 * that until he succeeds.) 3094 */ 3095 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3096 if (sb == NULL) { 3097 list->status = CTL_LUN_LIST_ERROR; 3098 snprintf(list->error_str, sizeof(list->error_str), 3099 "Unable to allocate %d bytes for LUN list", 3100 list->alloc_len); 3101 break; 3102 } 3103 3104 sbuf_printf(sb, "<ctllunlist>\n"); 3105 3106 mtx_lock(&softc->ctl_lock); 3107 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3108 mtx_lock(&lun->lun_lock); 3109 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3110 (uintmax_t)lun->lun); 3111 3112 /* 3113 * Bail out as soon as we see that we've overfilled 3114 * the buffer. 3115 */ 3116 if (retval != 0) 3117 break; 3118 3119 retval = sbuf_printf(sb, "\t<backend_type>%s" 3120 "</backend_type>\n", 3121 (lun->backend == NULL) ? "none" : 3122 lun->backend->name); 3123 3124 if (retval != 0) 3125 break; 3126 3127 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3128 lun->be_lun->lun_type); 3129 3130 if (retval != 0) 3131 break; 3132 3133 if (lun->backend == NULL) { 3134 retval = sbuf_printf(sb, "</lun>\n"); 3135 if (retval != 0) 3136 break; 3137 continue; 3138 } 3139 3140 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3141 (lun->be_lun->maxlba > 0) ? 3142 lun->be_lun->maxlba + 1 : 0); 3143 3144 if (retval != 0) 3145 break; 3146 3147 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3148 lun->be_lun->blocksize); 3149 3150 if (retval != 0) 3151 break; 3152 3153 retval = sbuf_printf(sb, "\t<serial_number>"); 3154 3155 if (retval != 0) 3156 break; 3157 3158 retval = ctl_sbuf_printf_esc(sb, 3159 lun->be_lun->serial_num, 3160 sizeof(lun->be_lun->serial_num)); 3161 3162 if (retval != 0) 3163 break; 3164 3165 retval = sbuf_printf(sb, "</serial_number>\n"); 3166 3167 if (retval != 0) 3168 break; 3169 3170 retval = sbuf_printf(sb, "\t<device_id>"); 3171 3172 if (retval != 0) 3173 break; 3174 3175 retval = ctl_sbuf_printf_esc(sb, 3176 lun->be_lun->device_id, 3177 sizeof(lun->be_lun->device_id)); 3178 3179 if (retval != 0) 3180 break; 3181 3182 retval = sbuf_printf(sb, "</device_id>\n"); 3183 3184 if (retval != 0) 3185 break; 3186 3187 if (lun->backend->lun_info != NULL) { 3188 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3189 if (retval != 0) 3190 break; 3191 } 3192 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3193 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3194 opt->name, opt->value, opt->name); 3195 if (retval != 0) 3196 break; 3197 } 3198 3199 retval = sbuf_printf(sb, "</lun>\n"); 3200 3201 if (retval != 0) 3202 break; 3203 mtx_unlock(&lun->lun_lock); 3204 } 3205 if (lun != NULL) 3206 mtx_unlock(&lun->lun_lock); 3207 mtx_unlock(&softc->ctl_lock); 3208 3209 if ((retval != 0) 3210 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3211 retval = 0; 3212 sbuf_delete(sb); 3213 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3214 snprintf(list->error_str, sizeof(list->error_str), 3215 "Out of space, %d bytes is too small", 3216 list->alloc_len); 3217 break; 3218 } 3219 3220 sbuf_finish(sb); 3221 3222 retval = copyout(sbuf_data(sb), list->lun_xml, 3223 sbuf_len(sb) + 1); 3224 3225 list->fill_len = sbuf_len(sb) + 1; 3226 list->status = CTL_LUN_LIST_OK; 3227 sbuf_delete(sb); 3228 break; 3229 } 3230 case CTL_ISCSI: { 3231 struct ctl_iscsi *ci; 3232 struct ctl_frontend *fe; 3233 3234 ci = (struct ctl_iscsi *)addr; 3235 3236 fe = ctl_frontend_find("iscsi"); 3237 if (fe == NULL) { 3238 ci->status = CTL_ISCSI_ERROR; 3239 snprintf(ci->error_str, sizeof(ci->error_str), 3240 "Frontend \"iscsi\" not found."); 3241 break; 3242 } 3243 3244 retval = fe->ioctl(dev, cmd, addr, flag, td); 3245 break; 3246 } 3247 case CTL_PORT_REQ: { 3248 struct ctl_req *req; 3249 struct ctl_frontend *fe; 3250 3251 req = (struct ctl_req *)addr; 3252 3253 fe = ctl_frontend_find(req->driver); 3254 if (fe == NULL) { 3255 req->status = CTL_LUN_ERROR; 3256 snprintf(req->error_str, sizeof(req->error_str), 3257 "Frontend \"%s\" not found.", req->driver); 3258 break; 3259 } 3260 if (req->num_args > 0) { 3261 req->kern_args = ctl_copyin_args(req->num_args, 3262 req->args, req->error_str, sizeof(req->error_str)); 3263 if (req->kern_args == NULL) { 3264 req->status = CTL_LUN_ERROR; 3265 break; 3266 } 3267 } 3268 3269 if (fe->ioctl) 3270 retval = fe->ioctl(dev, cmd, addr, flag, td); 3271 else 3272 retval = ENODEV; 3273 3274 if (req->num_args > 0) { 3275 ctl_copyout_args(req->num_args, req->kern_args); 3276 ctl_free_args(req->num_args, req->kern_args); 3277 } 3278 break; 3279 } 3280 case CTL_PORT_LIST: { 3281 struct sbuf *sb; 3282 struct ctl_port *port; 3283 struct ctl_lun_list *list; 3284 struct ctl_option *opt; 3285 int j; 3286 uint32_t plun; 3287 3288 list = (struct ctl_lun_list *)addr; 3289 3290 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3291 if (sb == NULL) { 3292 list->status = CTL_LUN_LIST_ERROR; 3293 snprintf(list->error_str, sizeof(list->error_str), 3294 "Unable to allocate %d bytes for LUN list", 3295 list->alloc_len); 3296 break; 3297 } 3298 3299 sbuf_printf(sb, "<ctlportlist>\n"); 3300 3301 mtx_lock(&softc->ctl_lock); 3302 STAILQ_FOREACH(port, &softc->port_list, links) { 3303 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3304 (uintmax_t)port->targ_port); 3305 3306 /* 3307 * Bail out as soon as we see that we've overfilled 3308 * the buffer. 3309 */ 3310 if (retval != 0) 3311 break; 3312 3313 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3314 "</frontend_type>\n", port->frontend->name); 3315 if (retval != 0) 3316 break; 3317 3318 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3319 port->port_type); 3320 if (retval != 0) 3321 break; 3322 3323 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3324 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3325 if (retval != 0) 3326 break; 3327 3328 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3329 port->port_name); 3330 if (retval != 0) 3331 break; 3332 3333 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3334 port->physical_port); 3335 if (retval != 0) 3336 break; 3337 3338 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3339 port->virtual_port); 3340 if (retval != 0) 3341 break; 3342 3343 if (port->target_devid != NULL) { 3344 sbuf_printf(sb, "\t<target>"); 3345 ctl_id_sbuf(port->target_devid, sb); 3346 sbuf_printf(sb, "</target>\n"); 3347 } 3348 3349 if (port->port_devid != NULL) { 3350 sbuf_printf(sb, "\t<port>"); 3351 ctl_id_sbuf(port->port_devid, sb); 3352 sbuf_printf(sb, "</port>\n"); 3353 } 3354 3355 if (port->port_info != NULL) { 3356 retval = port->port_info(port->onoff_arg, sb); 3357 if (retval != 0) 3358 break; 3359 } 3360 STAILQ_FOREACH(opt, &port->options, links) { 3361 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3362 opt->name, opt->value, opt->name); 3363 if (retval != 0) 3364 break; 3365 } 3366 3367 if (port->lun_map != NULL) { 3368 sbuf_printf(sb, "\t<lun_map>on</lun_map>\n"); 3369 for (j = 0; j < port->lun_map_size; j++) { 3370 plun = ctl_lun_map_from_port(port, j); 3371 if (plun == UINT32_MAX) 3372 continue; 3373 sbuf_printf(sb, 3374 "\t<lun id=\"%u\">%u</lun>\n", 3375 j, plun); 3376 } 3377 } 3378 3379 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3380 if (port->wwpn_iid[j].in_use == 0 || 3381 (port->wwpn_iid[j].wwpn == 0 && 3382 port->wwpn_iid[j].name == NULL)) 3383 continue; 3384 3385 if (port->wwpn_iid[j].name != NULL) 3386 retval = sbuf_printf(sb, 3387 "\t<initiator id=\"%u\">%s</initiator>\n", 3388 j, port->wwpn_iid[j].name); 3389 else 3390 retval = sbuf_printf(sb, 3391 "\t<initiator id=\"%u\">naa.%08jx</initiator>\n", 3392 j, port->wwpn_iid[j].wwpn); 3393 if (retval != 0) 3394 break; 3395 } 3396 if (retval != 0) 3397 break; 3398 3399 retval = sbuf_printf(sb, "</targ_port>\n"); 3400 if (retval != 0) 3401 break; 3402 } 3403 mtx_unlock(&softc->ctl_lock); 3404 3405 if ((retval != 0) 3406 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3407 retval = 0; 3408 sbuf_delete(sb); 3409 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3410 snprintf(list->error_str, sizeof(list->error_str), 3411 "Out of space, %d bytes is too small", 3412 list->alloc_len); 3413 break; 3414 } 3415 3416 sbuf_finish(sb); 3417 3418 retval = copyout(sbuf_data(sb), list->lun_xml, 3419 sbuf_len(sb) + 1); 3420 3421 list->fill_len = sbuf_len(sb) + 1; 3422 list->status = CTL_LUN_LIST_OK; 3423 sbuf_delete(sb); 3424 break; 3425 } 3426 case CTL_LUN_MAP: { 3427 struct ctl_lun_map *lm = (struct ctl_lun_map *)addr; 3428 struct ctl_port *port; 3429 3430 mtx_lock(&softc->ctl_lock); 3431 if (lm->port < softc->port_min || 3432 lm->port >= softc->port_max || 3433 (port = softc->ctl_ports[lm->port]) == NULL) { 3434 mtx_unlock(&softc->ctl_lock); 3435 return (ENXIO); 3436 } 3437 if (port->status & CTL_PORT_STATUS_ONLINE) { 3438 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3439 if (ctl_lun_map_to_port(port, lun->lun) == 3440 UINT32_MAX) 3441 continue; 3442 mtx_lock(&lun->lun_lock); 3443 ctl_est_ua_port(lun, lm->port, -1, 3444 CTL_UA_LUN_CHANGE); 3445 mtx_unlock(&lun->lun_lock); 3446 } 3447 } 3448 mtx_unlock(&softc->ctl_lock); // XXX: port_enable sleeps 3449 if (lm->plun != UINT32_MAX) { 3450 if (lm->lun == UINT32_MAX) 3451 retval = ctl_lun_map_unset(port, lm->plun); 3452 else if (lm->lun < ctl_max_luns && 3453 softc->ctl_luns[lm->lun] != NULL) 3454 retval = ctl_lun_map_set(port, lm->plun, lm->lun); 3455 else 3456 return (ENXIO); 3457 } else { 3458 if (lm->lun == UINT32_MAX) 3459 retval = ctl_lun_map_deinit(port); 3460 else 3461 retval = ctl_lun_map_init(port); 3462 } 3463 if (port->status & CTL_PORT_STATUS_ONLINE) 3464 ctl_isc_announce_port(port); 3465 break; 3466 } 3467 case CTL_GET_LUN_STATS: { 3468 struct ctl_get_io_stats *stats = (struct ctl_get_io_stats *)addr; 3469 int i; 3470 3471 /* 3472 * XXX KDM no locking here. If the LUN list changes, 3473 * things can blow up. 3474 */ 3475 i = 0; 3476 stats->status = CTL_SS_OK; 3477 stats->fill_len = 0; 3478 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3479 if (lun->lun < stats->first_item) 3480 continue; 3481 if (stats->fill_len + sizeof(lun->stats) > 3482 stats->alloc_len) { 3483 stats->status = CTL_SS_NEED_MORE_SPACE; 3484 break; 3485 } 3486 retval = copyout(&lun->stats, &stats->stats[i++], 3487 sizeof(lun->stats)); 3488 if (retval != 0) 3489 break; 3490 stats->fill_len += sizeof(lun->stats); 3491 } 3492 stats->num_items = softc->num_luns; 3493 stats->flags = CTL_STATS_FLAG_NONE; 3494#ifdef CTL_TIME_IO 3495 stats->flags |= CTL_STATS_FLAG_TIME_VALID; 3496#endif 3497 getnanouptime(&stats->timestamp); 3498 break; 3499 } 3500 case CTL_GET_PORT_STATS: { 3501 struct ctl_get_io_stats *stats = (struct ctl_get_io_stats *)addr; 3502 int i; 3503 3504 /* 3505 * XXX KDM no locking here. If the LUN list changes, 3506 * things can blow up. 3507 */ 3508 i = 0; 3509 stats->status = CTL_SS_OK; 3510 stats->fill_len = 0; 3511 STAILQ_FOREACH(port, &softc->port_list, links) { 3512 if (port->targ_port < stats->first_item) 3513 continue; 3514 if (stats->fill_len + sizeof(port->stats) > 3515 stats->alloc_len) { 3516 stats->status = CTL_SS_NEED_MORE_SPACE; 3517 break; 3518 } 3519 retval = copyout(&port->stats, &stats->stats[i++], 3520 sizeof(port->stats)); 3521 if (retval != 0) 3522 break; 3523 stats->fill_len += sizeof(port->stats); 3524 } 3525 stats->num_items = softc->num_ports; 3526 stats->flags = CTL_STATS_FLAG_NONE; 3527#ifdef CTL_TIME_IO 3528 stats->flags |= CTL_STATS_FLAG_TIME_VALID; 3529#endif 3530 getnanouptime(&stats->timestamp); 3531 break; 3532 } 3533 default: { 3534 /* XXX KDM should we fix this? */ 3535#if 0 3536 struct ctl_backend_driver *backend; 3537 unsigned int type; 3538 int found; 3539 3540 found = 0; 3541 3542 /* 3543 * We encode the backend type as the ioctl type for backend 3544 * ioctls. So parse it out here, and then search for a 3545 * backend of this type. 3546 */ 3547 type = _IOC_TYPE(cmd); 3548 3549 STAILQ_FOREACH(backend, &softc->be_list, links) { 3550 if (backend->type == type) { 3551 found = 1; 3552 break; 3553 } 3554 } 3555 if (found == 0) { 3556 printf("ctl: unknown ioctl command %#lx or backend " 3557 "%d\n", cmd, type); 3558 retval = EINVAL; 3559 break; 3560 } 3561 retval = backend->ioctl(dev, cmd, addr, flag, td); 3562#endif 3563 retval = ENOTTY; 3564 break; 3565 } 3566 } 3567 return (retval); 3568} 3569 3570uint32_t 3571ctl_get_initindex(struct ctl_nexus *nexus) 3572{ 3573 return (nexus->initid + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3574} 3575 3576int 3577ctl_lun_map_init(struct ctl_port *port) 3578{ 3579 struct ctl_softc *softc = port->ctl_softc; 3580 struct ctl_lun *lun; 3581 int size = ctl_lun_map_size; 3582 uint32_t i; 3583 3584 if (port->lun_map == NULL || port->lun_map_size < size) { 3585 port->lun_map_size = 0; 3586 free(port->lun_map, M_CTL); 3587 port->lun_map = malloc(size * sizeof(uint32_t), 3588 M_CTL, M_NOWAIT); 3589 } 3590 if (port->lun_map == NULL) 3591 return (ENOMEM); 3592 for (i = 0; i < size; i++) 3593 port->lun_map[i] = UINT32_MAX; 3594 port->lun_map_size = size; 3595 if (port->status & CTL_PORT_STATUS_ONLINE) { 3596 if (port->lun_disable != NULL) { 3597 STAILQ_FOREACH(lun, &softc->lun_list, links) 3598 port->lun_disable(port->targ_lun_arg, lun->lun); 3599 } 3600 ctl_isc_announce_port(port); 3601 } 3602 return (0); 3603} 3604 3605int 3606ctl_lun_map_deinit(struct ctl_port *port) 3607{ 3608 struct ctl_softc *softc = port->ctl_softc; 3609 struct ctl_lun *lun; 3610 3611 if (port->lun_map == NULL) 3612 return (0); 3613 port->lun_map_size = 0; 3614 free(port->lun_map, M_CTL); 3615 port->lun_map = NULL; 3616 if (port->status & CTL_PORT_STATUS_ONLINE) { 3617 if (port->lun_enable != NULL) { 3618 STAILQ_FOREACH(lun, &softc->lun_list, links) 3619 port->lun_enable(port->targ_lun_arg, lun->lun); 3620 } 3621 ctl_isc_announce_port(port); 3622 } 3623 return (0); 3624} 3625 3626int 3627ctl_lun_map_set(struct ctl_port *port, uint32_t plun, uint32_t glun) 3628{ 3629 int status; 3630 uint32_t old; 3631 3632 if (port->lun_map == NULL) { 3633 status = ctl_lun_map_init(port); 3634 if (status != 0) 3635 return (status); 3636 } 3637 if (plun >= port->lun_map_size) 3638 return (EINVAL); 3639 old = port->lun_map[plun]; 3640 port->lun_map[plun] = glun; 3641 if ((port->status & CTL_PORT_STATUS_ONLINE) && old == UINT32_MAX) { 3642 if (port->lun_enable != NULL) 3643 port->lun_enable(port->targ_lun_arg, plun); 3644 ctl_isc_announce_port(port); 3645 } 3646 return (0); 3647} 3648 3649int 3650ctl_lun_map_unset(struct ctl_port *port, uint32_t plun) 3651{ 3652 uint32_t old; 3653 3654 if (port->lun_map == NULL || plun >= port->lun_map_size) 3655 return (0); 3656 old = port->lun_map[plun]; 3657 port->lun_map[plun] = UINT32_MAX; 3658 if ((port->status & CTL_PORT_STATUS_ONLINE) && old != UINT32_MAX) { 3659 if (port->lun_disable != NULL) 3660 port->lun_disable(port->targ_lun_arg, plun); 3661 ctl_isc_announce_port(port); 3662 } 3663 return (0); 3664} 3665 3666uint32_t 3667ctl_lun_map_from_port(struct ctl_port *port, uint32_t lun_id) 3668{ 3669 3670 if (port == NULL) 3671 return (UINT32_MAX); 3672 if (port->lun_map == NULL) 3673 return (lun_id); 3674 if (lun_id > port->lun_map_size) 3675 return (UINT32_MAX); 3676 return (port->lun_map[lun_id]); 3677} 3678 3679uint32_t 3680ctl_lun_map_to_port(struct ctl_port *port, uint32_t lun_id) 3681{ 3682 uint32_t i; 3683 3684 if (port == NULL) 3685 return (UINT32_MAX); 3686 if (port->lun_map == NULL) 3687 return (lun_id); 3688 for (i = 0; i < port->lun_map_size; i++) { 3689 if (port->lun_map[i] == lun_id) 3690 return (i); 3691 } 3692 return (UINT32_MAX); 3693} 3694 3695uint32_t 3696ctl_decode_lun(uint64_t encoded) 3697{ 3698 uint8_t lun[8]; 3699 uint32_t result = 0xffffffff; 3700 3701 be64enc(lun, encoded); 3702 switch (lun[0] & RPL_LUNDATA_ATYP_MASK) { 3703 case RPL_LUNDATA_ATYP_PERIPH: 3704 if ((lun[0] & 0x3f) == 0 && lun[2] == 0 && lun[3] == 0 && 3705 lun[4] == 0 && lun[5] == 0 && lun[6] == 0 && lun[7] == 0) 3706 result = lun[1]; 3707 break; 3708 case RPL_LUNDATA_ATYP_FLAT: 3709 if (lun[2] == 0 && lun[3] == 0 && lun[4] == 0 && lun[5] == 0 && 3710 lun[6] == 0 && lun[7] == 0) 3711 result = ((lun[0] & 0x3f) << 8) + lun[1]; 3712 break; 3713 case RPL_LUNDATA_ATYP_EXTLUN: 3714 switch (lun[0] & RPL_LUNDATA_EXT_EAM_MASK) { 3715 case 0x02: 3716 switch (lun[0] & RPL_LUNDATA_EXT_LEN_MASK) { 3717 case 0x00: 3718 result = lun[1]; 3719 break; 3720 case 0x10: 3721 result = (lun[1] << 16) + (lun[2] << 8) + 3722 lun[3]; 3723 break; 3724 case 0x20: 3725 if (lun[1] == 0 && lun[6] == 0 && lun[7] == 0) 3726 result = (lun[2] << 24) + 3727 (lun[3] << 16) + (lun[4] << 8) + 3728 lun[5]; 3729 break; 3730 } 3731 break; 3732 case RPL_LUNDATA_EXT_EAM_NOT_SPEC: 3733 result = 0xffffffff; 3734 break; 3735 } 3736 break; 3737 } 3738 return (result); 3739} 3740 3741uint64_t 3742ctl_encode_lun(uint32_t decoded) 3743{ 3744 uint64_t l = decoded; 3745 3746 if (l <= 0xff) 3747 return (((uint64_t)RPL_LUNDATA_ATYP_PERIPH << 56) | (l << 48)); 3748 if (l <= 0x3fff) 3749 return (((uint64_t)RPL_LUNDATA_ATYP_FLAT << 56) | (l << 48)); 3750 if (l <= 0xffffff) 3751 return (((uint64_t)(RPL_LUNDATA_ATYP_EXTLUN | 0x12) << 56) | 3752 (l << 32)); 3753 return ((((uint64_t)RPL_LUNDATA_ATYP_EXTLUN | 0x22) << 56) | (l << 16)); 3754} 3755 3756int 3757ctl_ffz(uint32_t *mask, uint32_t first, uint32_t last) 3758{ 3759 int i; 3760 3761 for (i = first; i < last; i++) { 3762 if ((mask[i / 32] & (1 << (i % 32))) == 0) 3763 return (i); 3764 } 3765 return (-1); 3766} 3767 3768int 3769ctl_set_mask(uint32_t *mask, uint32_t bit) 3770{ 3771 uint32_t chunk, piece; 3772 3773 chunk = bit >> 5; 3774 piece = bit % (sizeof(uint32_t) * 8); 3775 3776 if ((mask[chunk] & (1 << piece)) != 0) 3777 return (-1); 3778 else 3779 mask[chunk] |= (1 << piece); 3780 3781 return (0); 3782} 3783 3784int 3785ctl_clear_mask(uint32_t *mask, uint32_t bit) 3786{ 3787 uint32_t chunk, piece; 3788 3789 chunk = bit >> 5; 3790 piece = bit % (sizeof(uint32_t) * 8); 3791 3792 if ((mask[chunk] & (1 << piece)) == 0) 3793 return (-1); 3794 else 3795 mask[chunk] &= ~(1 << piece); 3796 3797 return (0); 3798} 3799 3800int 3801ctl_is_set(uint32_t *mask, uint32_t bit) 3802{ 3803 uint32_t chunk, piece; 3804 3805 chunk = bit >> 5; 3806 piece = bit % (sizeof(uint32_t) * 8); 3807 3808 if ((mask[chunk] & (1 << piece)) == 0) 3809 return (0); 3810 else 3811 return (1); 3812} 3813 3814static uint64_t 3815ctl_get_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 (0); 3822 return (t[residx % CTL_MAX_INIT_PER_PORT]); 3823} 3824 3825static void 3826ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx) 3827{ 3828 uint64_t *t; 3829 3830 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3831 if (t == NULL) 3832 return; 3833 t[residx % CTL_MAX_INIT_PER_PORT] = 0; 3834} 3835 3836static void 3837ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx) 3838{ 3839 uint64_t *p; 3840 u_int i; 3841 3842 i = residx/CTL_MAX_INIT_PER_PORT; 3843 if (lun->pr_keys[i] != NULL) 3844 return; 3845 mtx_unlock(&lun->lun_lock); 3846 p = malloc(sizeof(uint64_t) * CTL_MAX_INIT_PER_PORT, M_CTL, 3847 M_WAITOK | M_ZERO); 3848 mtx_lock(&lun->lun_lock); 3849 if (lun->pr_keys[i] == NULL) 3850 lun->pr_keys[i] = p; 3851 else 3852 free(p, M_CTL); 3853} 3854 3855static void 3856ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key) 3857{ 3858 uint64_t *t; 3859 3860 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3861 KASSERT(t != NULL, ("prkey %d is not allocated", residx)); 3862 t[residx % CTL_MAX_INIT_PER_PORT] = key; 3863} 3864 3865/* 3866 * ctl_softc, pool_name, total_ctl_io are passed in. 3867 * npool is passed out. 3868 */ 3869int 3870ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name, 3871 uint32_t total_ctl_io, void **npool) 3872{ 3873 struct ctl_io_pool *pool; 3874 3875 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3876 M_NOWAIT | M_ZERO); 3877 if (pool == NULL) 3878 return (ENOMEM); 3879 3880 snprintf(pool->name, sizeof(pool->name), "CTL IO %s", pool_name); 3881 pool->ctl_softc = ctl_softc; 3882#ifdef IO_POOLS 3883 pool->zone = uma_zsecond_create(pool->name, NULL, 3884 NULL, NULL, NULL, ctl_softc->io_zone); 3885 /* uma_prealloc(pool->zone, total_ctl_io); */ 3886#else 3887 pool->zone = ctl_softc->io_zone; 3888#endif 3889 3890 *npool = pool; 3891 return (0); 3892} 3893 3894void 3895ctl_pool_free(struct ctl_io_pool *pool) 3896{ 3897 3898 if (pool == NULL) 3899 return; 3900 3901#ifdef IO_POOLS 3902 uma_zdestroy(pool->zone); 3903#endif 3904 free(pool, M_CTL); 3905} 3906 3907union ctl_io * 3908ctl_alloc_io(void *pool_ref) 3909{ 3910 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3911 union ctl_io *io; 3912 3913 io = uma_zalloc(pool->zone, M_WAITOK); 3914 if (io != NULL) { 3915 io->io_hdr.pool = pool_ref; 3916 CTL_SOFTC(io) = pool->ctl_softc; 3917 } 3918 return (io); 3919} 3920 3921union ctl_io * 3922ctl_alloc_io_nowait(void *pool_ref) 3923{ 3924 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3925 union ctl_io *io; 3926 3927 io = uma_zalloc(pool->zone, M_NOWAIT); 3928 if (io != NULL) { 3929 io->io_hdr.pool = pool_ref; 3930 CTL_SOFTC(io) = pool->ctl_softc; 3931 } 3932 return (io); 3933} 3934 3935void 3936ctl_free_io(union ctl_io *io) 3937{ 3938 struct ctl_io_pool *pool; 3939 3940 if (io == NULL) 3941 return; 3942 3943 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3944 uma_zfree(pool->zone, io); 3945} 3946 3947void 3948ctl_zero_io(union ctl_io *io) 3949{ 3950 struct ctl_io_pool *pool; 3951 3952 if (io == NULL) 3953 return; 3954 3955 /* 3956 * May need to preserve linked list pointers at some point too. 3957 */ 3958 pool = io->io_hdr.pool; 3959 memset(io, 0, sizeof(*io)); 3960 io->io_hdr.pool = pool; 3961 CTL_SOFTC(io) = pool->ctl_softc; 3962} 3963 3964int 3965ctl_expand_number(const char *buf, uint64_t *num) 3966{ 3967 char *endptr; 3968 uint64_t number; 3969 unsigned shift; 3970 3971 number = strtoq(buf, &endptr, 0); 3972 3973 switch (tolower((unsigned char)*endptr)) { 3974 case 'e': 3975 shift = 60; 3976 break; 3977 case 'p': 3978 shift = 50; 3979 break; 3980 case 't': 3981 shift = 40; 3982 break; 3983 case 'g': 3984 shift = 30; 3985 break; 3986 case 'm': 3987 shift = 20; 3988 break; 3989 case 'k': 3990 shift = 10; 3991 break; 3992 case 'b': 3993 case '\0': /* No unit. */ 3994 *num = number; 3995 return (0); 3996 default: 3997 /* Unrecognized unit. */ 3998 return (-1); 3999 } 4000 4001 if ((number << shift) >> shift != number) { 4002 /* Overflow */ 4003 return (-1); 4004 } 4005 *num = number << shift; 4006 return (0); 4007} 4008 4009 4010/* 4011 * This routine could be used in the future to load default and/or saved 4012 * mode page parameters for a particuar lun. 4013 */ 4014static int 4015ctl_init_page_index(struct ctl_lun *lun) 4016{ 4017 int i, page_code; 4018 struct ctl_page_index *page_index; 4019 const char *value; 4020 uint64_t ival; 4021 4022 memcpy(&lun->mode_pages.index, page_index_template, 4023 sizeof(page_index_template)); 4024 4025 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 4026 4027 page_index = &lun->mode_pages.index[i]; 4028 if (lun->be_lun->lun_type == T_DIRECT && 4029 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 4030 continue; 4031 if (lun->be_lun->lun_type == T_PROCESSOR && 4032 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 4033 continue; 4034 if (lun->be_lun->lun_type == T_CDROM && 4035 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 4036 continue; 4037 4038 page_code = page_index->page_code & SMPH_PC_MASK; 4039 switch (page_code) { 4040 case SMS_RW_ERROR_RECOVERY_PAGE: { 4041 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4042 ("subpage %#x for page %#x is incorrect!", 4043 page_index->subpage, page_code)); 4044 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 4045 &rw_er_page_default, 4046 sizeof(rw_er_page_default)); 4047 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 4048 &rw_er_page_changeable, 4049 sizeof(rw_er_page_changeable)); 4050 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 4051 &rw_er_page_default, 4052 sizeof(rw_er_page_default)); 4053 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 4054 &rw_er_page_default, 4055 sizeof(rw_er_page_default)); 4056 page_index->page_data = 4057 (uint8_t *)lun->mode_pages.rw_er_page; 4058 break; 4059 } 4060 case SMS_FORMAT_DEVICE_PAGE: { 4061 struct scsi_format_page *format_page; 4062 4063 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4064 ("subpage %#x for page %#x is incorrect!", 4065 page_index->subpage, page_code)); 4066 4067 /* 4068 * Sectors per track are set above. Bytes per 4069 * sector need to be set here on a per-LUN basis. 4070 */ 4071 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 4072 &format_page_default, 4073 sizeof(format_page_default)); 4074 memcpy(&lun->mode_pages.format_page[ 4075 CTL_PAGE_CHANGEABLE], &format_page_changeable, 4076 sizeof(format_page_changeable)); 4077 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 4078 &format_page_default, 4079 sizeof(format_page_default)); 4080 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 4081 &format_page_default, 4082 sizeof(format_page_default)); 4083 4084 format_page = &lun->mode_pages.format_page[ 4085 CTL_PAGE_CURRENT]; 4086 scsi_ulto2b(lun->be_lun->blocksize, 4087 format_page->bytes_per_sector); 4088 4089 format_page = &lun->mode_pages.format_page[ 4090 CTL_PAGE_DEFAULT]; 4091 scsi_ulto2b(lun->be_lun->blocksize, 4092 format_page->bytes_per_sector); 4093 4094 format_page = &lun->mode_pages.format_page[ 4095 CTL_PAGE_SAVED]; 4096 scsi_ulto2b(lun->be_lun->blocksize, 4097 format_page->bytes_per_sector); 4098 4099 page_index->page_data = 4100 (uint8_t *)lun->mode_pages.format_page; 4101 break; 4102 } 4103 case SMS_RIGID_DISK_PAGE: { 4104 struct scsi_rigid_disk_page *rigid_disk_page; 4105 uint32_t sectors_per_cylinder; 4106 uint64_t cylinders; 4107#ifndef __XSCALE__ 4108 int shift; 4109#endif /* !__XSCALE__ */ 4110 4111 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4112 ("subpage %#x for page %#x is incorrect!", 4113 page_index->subpage, page_code)); 4114 4115 /* 4116 * Rotation rate and sectors per track are set 4117 * above. We calculate the cylinders here based on 4118 * capacity. Due to the number of heads and 4119 * sectors per track we're using, smaller arrays 4120 * may turn out to have 0 cylinders. Linux and 4121 * FreeBSD don't pay attention to these mode pages 4122 * to figure out capacity, but Solaris does. It 4123 * seems to deal with 0 cylinders just fine, and 4124 * works out a fake geometry based on the capacity. 4125 */ 4126 memcpy(&lun->mode_pages.rigid_disk_page[ 4127 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4128 sizeof(rigid_disk_page_default)); 4129 memcpy(&lun->mode_pages.rigid_disk_page[ 4130 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4131 sizeof(rigid_disk_page_changeable)); 4132 4133 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4134 CTL_DEFAULT_HEADS; 4135 4136 /* 4137 * The divide method here will be more accurate, 4138 * probably, but results in floating point being 4139 * used in the kernel on i386 (__udivdi3()). On the 4140 * XScale, though, __udivdi3() is implemented in 4141 * software. 4142 * 4143 * The shift method for cylinder calculation is 4144 * accurate if sectors_per_cylinder is a power of 4145 * 2. Otherwise it might be slightly off -- you 4146 * might have a bit of a truncation problem. 4147 */ 4148#ifdef __XSCALE__ 4149 cylinders = (lun->be_lun->maxlba + 1) / 4150 sectors_per_cylinder; 4151#else 4152 for (shift = 31; shift > 0; shift--) { 4153 if (sectors_per_cylinder & (1 << shift)) 4154 break; 4155 } 4156 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4157#endif 4158 4159 /* 4160 * We've basically got 3 bytes, or 24 bits for the 4161 * cylinder size in the mode page. If we're over, 4162 * just round down to 2^24. 4163 */ 4164 if (cylinders > 0xffffff) 4165 cylinders = 0xffffff; 4166 4167 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4168 CTL_PAGE_DEFAULT]; 4169 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4170 4171 if ((value = ctl_get_opt(&lun->be_lun->options, 4172 "rpm")) != NULL) { 4173 scsi_ulto2b(strtol(value, NULL, 0), 4174 rigid_disk_page->rotation_rate); 4175 } 4176 4177 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 4178 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4179 sizeof(rigid_disk_page_default)); 4180 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 4181 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4182 sizeof(rigid_disk_page_default)); 4183 4184 page_index->page_data = 4185 (uint8_t *)lun->mode_pages.rigid_disk_page; 4186 break; 4187 } 4188 case SMS_VERIFY_ERROR_RECOVERY_PAGE: { 4189 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4190 ("subpage %#x for page %#x is incorrect!", 4191 page_index->subpage, page_code)); 4192 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_CURRENT], 4193 &verify_er_page_default, 4194 sizeof(verify_er_page_default)); 4195 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_CHANGEABLE], 4196 &verify_er_page_changeable, 4197 sizeof(verify_er_page_changeable)); 4198 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_DEFAULT], 4199 &verify_er_page_default, 4200 sizeof(verify_er_page_default)); 4201 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_SAVED], 4202 &verify_er_page_default, 4203 sizeof(verify_er_page_default)); 4204 page_index->page_data = 4205 (uint8_t *)lun->mode_pages.verify_er_page; 4206 break; 4207 } 4208 case SMS_CACHING_PAGE: { 4209 struct scsi_caching_page *caching_page; 4210 4211 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4212 ("subpage %#x for page %#x is incorrect!", 4213 page_index->subpage, page_code)); 4214 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4215 &caching_page_default, 4216 sizeof(caching_page_default)); 4217 memcpy(&lun->mode_pages.caching_page[ 4218 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4219 sizeof(caching_page_changeable)); 4220 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4221 &caching_page_default, 4222 sizeof(caching_page_default)); 4223 caching_page = &lun->mode_pages.caching_page[ 4224 CTL_PAGE_SAVED]; 4225 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4226 if (value != NULL && strcmp(value, "off") == 0) 4227 caching_page->flags1 &= ~SCP_WCE; 4228 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4229 if (value != NULL && strcmp(value, "off") == 0) 4230 caching_page->flags1 |= SCP_RCD; 4231 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4232 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4233 sizeof(caching_page_default)); 4234 page_index->page_data = 4235 (uint8_t *)lun->mode_pages.caching_page; 4236 break; 4237 } 4238 case SMS_CONTROL_MODE_PAGE: { 4239 switch (page_index->subpage) { 4240 case SMS_SUBPAGE_PAGE_0: { 4241 struct scsi_control_page *control_page; 4242 4243 memcpy(&lun->mode_pages.control_page[ 4244 CTL_PAGE_DEFAULT], 4245 &control_page_default, 4246 sizeof(control_page_default)); 4247 memcpy(&lun->mode_pages.control_page[ 4248 CTL_PAGE_CHANGEABLE], 4249 &control_page_changeable, 4250 sizeof(control_page_changeable)); 4251 memcpy(&lun->mode_pages.control_page[ 4252 CTL_PAGE_SAVED], 4253 &control_page_default, 4254 sizeof(control_page_default)); 4255 control_page = &lun->mode_pages.control_page[ 4256 CTL_PAGE_SAVED]; 4257 value = ctl_get_opt(&lun->be_lun->options, 4258 "reordering"); 4259 if (value != NULL && 4260 strcmp(value, "unrestricted") == 0) { 4261 control_page->queue_flags &= 4262 ~SCP_QUEUE_ALG_MASK; 4263 control_page->queue_flags |= 4264 SCP_QUEUE_ALG_UNRESTRICTED; 4265 } 4266 memcpy(&lun->mode_pages.control_page[ 4267 CTL_PAGE_CURRENT], 4268 &lun->mode_pages.control_page[ 4269 CTL_PAGE_SAVED], 4270 sizeof(control_page_default)); 4271 page_index->page_data = 4272 (uint8_t *)lun->mode_pages.control_page; 4273 break; 4274 } 4275 case 0x01: 4276 memcpy(&lun->mode_pages.control_ext_page[ 4277 CTL_PAGE_DEFAULT], 4278 &control_ext_page_default, 4279 sizeof(control_ext_page_default)); 4280 memcpy(&lun->mode_pages.control_ext_page[ 4281 CTL_PAGE_CHANGEABLE], 4282 &control_ext_page_changeable, 4283 sizeof(control_ext_page_changeable)); 4284 memcpy(&lun->mode_pages.control_ext_page[ 4285 CTL_PAGE_SAVED], 4286 &control_ext_page_default, 4287 sizeof(control_ext_page_default)); 4288 memcpy(&lun->mode_pages.control_ext_page[ 4289 CTL_PAGE_CURRENT], 4290 &lun->mode_pages.control_ext_page[ 4291 CTL_PAGE_SAVED], 4292 sizeof(control_ext_page_default)); 4293 page_index->page_data = 4294 (uint8_t *)lun->mode_pages.control_ext_page; 4295 break; 4296 default: 4297 panic("subpage %#x for page %#x is incorrect!", 4298 page_index->subpage, page_code); 4299 } 4300 break; 4301 } 4302 case SMS_INFO_EXCEPTIONS_PAGE: { 4303 switch (page_index->subpage) { 4304 case SMS_SUBPAGE_PAGE_0: 4305 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 4306 &ie_page_default, 4307 sizeof(ie_page_default)); 4308 memcpy(&lun->mode_pages.ie_page[ 4309 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 4310 sizeof(ie_page_changeable)); 4311 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 4312 &ie_page_default, 4313 sizeof(ie_page_default)); 4314 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 4315 &ie_page_default, 4316 sizeof(ie_page_default)); 4317 page_index->page_data = 4318 (uint8_t *)lun->mode_pages.ie_page; 4319 break; 4320 case 0x02: { 4321 struct ctl_logical_block_provisioning_page *page; 4322 4323 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 4324 &lbp_page_default, 4325 sizeof(lbp_page_default)); 4326 memcpy(&lun->mode_pages.lbp_page[ 4327 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 4328 sizeof(lbp_page_changeable)); 4329 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4330 &lbp_page_default, 4331 sizeof(lbp_page_default)); 4332 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 4333 value = ctl_get_opt(&lun->be_lun->options, 4334 "avail-threshold"); 4335 if (value != NULL && 4336 ctl_expand_number(value, &ival) == 0) { 4337 page->descr[0].flags |= SLBPPD_ENABLED | 4338 SLBPPD_ARMING_DEC; 4339 if (lun->be_lun->blocksize) 4340 ival /= lun->be_lun->blocksize; 4341 else 4342 ival /= 512; 4343 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4344 page->descr[0].count); 4345 } 4346 value = ctl_get_opt(&lun->be_lun->options, 4347 "used-threshold"); 4348 if (value != NULL && 4349 ctl_expand_number(value, &ival) == 0) { 4350 page->descr[1].flags |= SLBPPD_ENABLED | 4351 SLBPPD_ARMING_INC; 4352 if (lun->be_lun->blocksize) 4353 ival /= lun->be_lun->blocksize; 4354 else 4355 ival /= 512; 4356 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4357 page->descr[1].count); 4358 } 4359 value = ctl_get_opt(&lun->be_lun->options, 4360 "pool-avail-threshold"); 4361 if (value != NULL && 4362 ctl_expand_number(value, &ival) == 0) { 4363 page->descr[2].flags |= SLBPPD_ENABLED | 4364 SLBPPD_ARMING_DEC; 4365 if (lun->be_lun->blocksize) 4366 ival /= lun->be_lun->blocksize; 4367 else 4368 ival /= 512; 4369 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4370 page->descr[2].count); 4371 } 4372 value = ctl_get_opt(&lun->be_lun->options, 4373 "pool-used-threshold"); 4374 if (value != NULL && 4375 ctl_expand_number(value, &ival) == 0) { 4376 page->descr[3].flags |= SLBPPD_ENABLED | 4377 SLBPPD_ARMING_INC; 4378 if (lun->be_lun->blocksize) 4379 ival /= lun->be_lun->blocksize; 4380 else 4381 ival /= 512; 4382 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4383 page->descr[3].count); 4384 } 4385 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 4386 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4387 sizeof(lbp_page_default)); 4388 page_index->page_data = 4389 (uint8_t *)lun->mode_pages.lbp_page; 4390 break; 4391 } 4392 default: 4393 panic("subpage %#x for page %#x is incorrect!", 4394 page_index->subpage, page_code); 4395 } 4396 break; 4397 } 4398 case SMS_CDDVD_CAPS_PAGE:{ 4399 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4400 ("subpage %#x for page %#x is incorrect!", 4401 page_index->subpage, page_code)); 4402 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_DEFAULT], 4403 &cddvd_page_default, 4404 sizeof(cddvd_page_default)); 4405 memcpy(&lun->mode_pages.cddvd_page[ 4406 CTL_PAGE_CHANGEABLE], &cddvd_page_changeable, 4407 sizeof(cddvd_page_changeable)); 4408 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4409 &cddvd_page_default, 4410 sizeof(cddvd_page_default)); 4411 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_CURRENT], 4412 &lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4413 sizeof(cddvd_page_default)); 4414 page_index->page_data = 4415 (uint8_t *)lun->mode_pages.cddvd_page; 4416 break; 4417 } 4418 default: 4419 panic("invalid page code value %#x", page_code); 4420 } 4421 } 4422 4423 return (CTL_RETVAL_COMPLETE); 4424} 4425 4426static int 4427ctl_init_log_page_index(struct ctl_lun *lun) 4428{ 4429 struct ctl_page_index *page_index; 4430 int i, j, k, prev; 4431 4432 memcpy(&lun->log_pages.index, log_page_index_template, 4433 sizeof(log_page_index_template)); 4434 4435 prev = -1; 4436 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4437 4438 page_index = &lun->log_pages.index[i]; 4439 if (lun->be_lun->lun_type == T_DIRECT && 4440 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 4441 continue; 4442 if (lun->be_lun->lun_type == T_PROCESSOR && 4443 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 4444 continue; 4445 if (lun->be_lun->lun_type == T_CDROM && 4446 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 4447 continue; 4448 4449 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4450 lun->backend->lun_attr == NULL) 4451 continue; 4452 4453 if (page_index->page_code != prev) { 4454 lun->log_pages.pages_page[j] = page_index->page_code; 4455 prev = page_index->page_code; 4456 j++; 4457 } 4458 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4459 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4460 k++; 4461 } 4462 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4463 lun->log_pages.index[0].page_len = j; 4464 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4465 lun->log_pages.index[1].page_len = k * 2; 4466 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4467 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4468 lun->log_pages.index[3].page_data = (uint8_t *)&lun->log_pages.stat_page; 4469 lun->log_pages.index[3].page_len = sizeof(lun->log_pages.stat_page); 4470 lun->log_pages.index[4].page_data = (uint8_t *)&lun->log_pages.ie_page; 4471 lun->log_pages.index[4].page_len = sizeof(lun->log_pages.ie_page); 4472 4473 return (CTL_RETVAL_COMPLETE); 4474} 4475 4476static int 4477hex2bin(const char *str, uint8_t *buf, int buf_size) 4478{ 4479 int i; 4480 u_char c; 4481 4482 memset(buf, 0, buf_size); 4483 while (isspace(str[0])) 4484 str++; 4485 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4486 str += 2; 4487 buf_size *= 2; 4488 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4489 while (str[i] == '-') /* Skip dashes in UUIDs. */ 4490 str++; 4491 c = str[i]; 4492 if (isdigit(c)) 4493 c -= '0'; 4494 else if (isalpha(c)) 4495 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4496 else 4497 break; 4498 if (c >= 16) 4499 break; 4500 if ((i & 1) == 0) 4501 buf[i / 2] |= (c << 4); 4502 else 4503 buf[i / 2] |= c; 4504 } 4505 return ((i + 1) / 2); 4506} 4507 4508/* 4509 * LUN allocation. 4510 * 4511 * Requirements: 4512 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4513 * wants us to allocate the LUN and he can block. 4514 * - ctl_softc is always set 4515 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4516 * 4517 * Returns 0 for success, non-zero (errno) for failure. 4518 */ 4519static int 4520ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4521 struct ctl_be_lun *const be_lun) 4522{ 4523 struct ctl_lun *nlun, *lun; 4524 struct scsi_vpd_id_descriptor *desc; 4525 struct scsi_vpd_id_t10 *t10id; 4526 const char *eui, *naa, *scsiname, *uuid, *vendor, *value; 4527 int lun_number, lun_malloced; 4528 int devidlen, idlen1, idlen2 = 0, len; 4529 4530 if (be_lun == NULL) 4531 return (EINVAL); 4532 4533 /* 4534 * We currently only support Direct Access or Processor LUN types. 4535 */ 4536 switch (be_lun->lun_type) { 4537 case T_DIRECT: 4538 case T_PROCESSOR: 4539 case T_CDROM: 4540 break; 4541 case T_SEQUENTIAL: 4542 case T_CHANGER: 4543 default: 4544 be_lun->lun_config_status(be_lun->be_lun, 4545 CTL_LUN_CONFIG_FAILURE); 4546 break; 4547 } 4548 if (ctl_lun == NULL) { 4549 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4550 lun_malloced = 1; 4551 } else { 4552 lun_malloced = 0; 4553 lun = ctl_lun; 4554 } 4555 4556 memset(lun, 0, sizeof(*lun)); 4557 if (lun_malloced) 4558 lun->flags = CTL_LUN_MALLOCED; 4559 4560 lun->pending_sense = malloc(sizeof(struct scsi_sense_data *) * 4561 ctl_max_ports, M_DEVBUF, M_WAITOK | M_ZERO); 4562 lun->pending_ua = malloc(sizeof(ctl_ua_type *) * ctl_max_ports, 4563 M_DEVBUF, M_WAITOK | M_ZERO); 4564 lun->pr_keys = malloc(sizeof(uint64_t *) * ctl_max_ports, 4565 M_DEVBUF, M_WAITOK | M_ZERO); 4566 4567 /* Generate LUN ID. */ 4568 devidlen = max(CTL_DEVID_MIN_LEN, 4569 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4570 idlen1 = sizeof(*t10id) + devidlen; 4571 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4572 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4573 if (scsiname != NULL) { 4574 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4575 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4576 } 4577 eui = ctl_get_opt(&be_lun->options, "eui"); 4578 if (eui != NULL) { 4579 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4580 } 4581 naa = ctl_get_opt(&be_lun->options, "naa"); 4582 if (naa != NULL) { 4583 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4584 } 4585 uuid = ctl_get_opt(&be_lun->options, "uuid"); 4586 if (uuid != NULL) { 4587 len += sizeof(struct scsi_vpd_id_descriptor) + 18; 4588 } 4589 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4590 M_CTL, M_WAITOK | M_ZERO); 4591 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4592 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4593 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4594 desc->length = idlen1; 4595 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4596 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4597 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4598 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4599 } else { 4600 strncpy(t10id->vendor, vendor, 4601 min(sizeof(t10id->vendor), strlen(vendor))); 4602 } 4603 strncpy((char *)t10id->vendor_spec_id, 4604 (char *)be_lun->device_id, devidlen); 4605 if (scsiname != NULL) { 4606 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4607 desc->length); 4608 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4609 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4610 SVPD_ID_TYPE_SCSI_NAME; 4611 desc->length = idlen2; 4612 strlcpy(desc->identifier, scsiname, idlen2); 4613 } 4614 if (eui != NULL) { 4615 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4616 desc->length); 4617 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4618 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4619 SVPD_ID_TYPE_EUI64; 4620 desc->length = hex2bin(eui, desc->identifier, 16); 4621 desc->length = desc->length > 12 ? 16 : 4622 (desc->length > 8 ? 12 : 8); 4623 len -= 16 - desc->length; 4624 } 4625 if (naa != NULL) { 4626 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4627 desc->length); 4628 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4629 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4630 SVPD_ID_TYPE_NAA; 4631 desc->length = hex2bin(naa, desc->identifier, 16); 4632 desc->length = desc->length > 8 ? 16 : 8; 4633 len -= 16 - desc->length; 4634 } 4635 if (uuid != NULL) { 4636 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4637 desc->length); 4638 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4639 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4640 SVPD_ID_TYPE_UUID; 4641 desc->identifier[0] = 0x10; 4642 hex2bin(uuid, &desc->identifier[2], 16); 4643 desc->length = 18; 4644 } 4645 lun->lun_devid->len = len; 4646 4647 mtx_lock(&ctl_softc->ctl_lock); 4648 /* 4649 * See if the caller requested a particular LUN number. If so, see 4650 * if it is available. Otherwise, allocate the first available LUN. 4651 */ 4652 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4653 if ((be_lun->req_lun_id > (ctl_max_luns - 1)) 4654 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4655 mtx_unlock(&ctl_softc->ctl_lock); 4656 if (be_lun->req_lun_id > (ctl_max_luns - 1)) { 4657 printf("ctl: requested LUN ID %d is higher " 4658 "than ctl_max_luns - 1 (%d)\n", 4659 be_lun->req_lun_id, ctl_max_luns - 1); 4660 } else { 4661 /* 4662 * XXX KDM return an error, or just assign 4663 * another LUN ID in this case?? 4664 */ 4665 printf("ctl: requested LUN ID %d is already " 4666 "in use\n", be_lun->req_lun_id); 4667 } 4668fail: 4669 free(lun->lun_devid, M_CTL); 4670 if (lun->flags & CTL_LUN_MALLOCED) 4671 free(lun, M_CTL); 4672 be_lun->lun_config_status(be_lun->be_lun, 4673 CTL_LUN_CONFIG_FAILURE); 4674 return (ENOSPC); 4675 } 4676 lun_number = be_lun->req_lun_id; 4677 } else { 4678 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, 0, ctl_max_luns); 4679 if (lun_number == -1) { 4680 mtx_unlock(&ctl_softc->ctl_lock); 4681 printf("ctl: can't allocate LUN, out of LUNs\n"); 4682 goto fail; 4683 } 4684 } 4685 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4686 mtx_unlock(&ctl_softc->ctl_lock); 4687 4688 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4689 lun->lun = lun_number; 4690 lun->be_lun = be_lun; 4691 /* 4692 * The processor LUN is always enabled. Disk LUNs come on line 4693 * disabled, and must be enabled by the backend. 4694 */ 4695 lun->flags |= CTL_LUN_DISABLED; 4696 lun->backend = be_lun->be; 4697 be_lun->ctl_lun = lun; 4698 be_lun->lun_id = lun_number; 4699 atomic_add_int(&be_lun->be->num_luns, 1); 4700 if (be_lun->flags & CTL_LUN_FLAG_EJECTED) 4701 lun->flags |= CTL_LUN_EJECTED; 4702 if (be_lun->flags & CTL_LUN_FLAG_NO_MEDIA) 4703 lun->flags |= CTL_LUN_NO_MEDIA; 4704 if (be_lun->flags & CTL_LUN_FLAG_STOPPED) 4705 lun->flags |= CTL_LUN_STOPPED; 4706 4707 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4708 lun->flags |= CTL_LUN_PRIMARY_SC; 4709 4710 value = ctl_get_opt(&be_lun->options, "removable"); 4711 if (value != NULL) { 4712 if (strcmp(value, "on") == 0) 4713 lun->flags |= CTL_LUN_REMOVABLE; 4714 } else if (be_lun->lun_type == T_CDROM) 4715 lun->flags |= CTL_LUN_REMOVABLE; 4716 4717 lun->ctl_softc = ctl_softc; 4718#ifdef CTL_TIME_IO 4719 lun->last_busy = getsbinuptime(); 4720#endif 4721 TAILQ_INIT(&lun->ooa_queue); 4722 TAILQ_INIT(&lun->blocked_queue); 4723 STAILQ_INIT(&lun->error_list); 4724 lun->ie_reported = 1; 4725 callout_init_mtx(&lun->ie_callout, &lun->lun_lock, 0); 4726 ctl_tpc_lun_init(lun); 4727 if (lun->flags & CTL_LUN_REMOVABLE) { 4728 lun->prevent = malloc((CTL_MAX_INITIATORS + 31) / 32 * 4, 4729 M_CTL, M_WAITOK); 4730 } 4731 4732 /* 4733 * Initialize the mode and log page index. 4734 */ 4735 ctl_init_page_index(lun); 4736 ctl_init_log_page_index(lun); 4737 4738 /* Setup statistics gathering */ 4739#ifdef CTL_LEGACY_STATS 4740 lun->legacy_stats.device_type = be_lun->lun_type; 4741 lun->legacy_stats.lun_number = lun_number; 4742 lun->legacy_stats.blocksize = be_lun->blocksize; 4743 if (be_lun->blocksize == 0) 4744 lun->legacy_stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4745 lun->legacy_stats.ports = malloc(sizeof(struct ctl_lun_io_port_stats) * 4746 ctl_max_ports, M_DEVBUF, M_WAITOK | M_ZERO); 4747 for (len = 0; len < ctl_max_ports; len++) 4748 lun->legacy_stats.ports[len].targ_port = len; 4749#endif /* CTL_LEGACY_STATS */ 4750 lun->stats.item = lun_number; 4751 4752 /* 4753 * Now, before we insert this lun on the lun list, set the lun 4754 * inventory changed UA for all other luns. 4755 */ 4756 mtx_lock(&ctl_softc->ctl_lock); 4757 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4758 mtx_lock(&nlun->lun_lock); 4759 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4760 mtx_unlock(&nlun->lun_lock); 4761 } 4762 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4763 ctl_softc->ctl_luns[lun_number] = lun; 4764 ctl_softc->num_luns++; 4765 mtx_unlock(&ctl_softc->ctl_lock); 4766 4767 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4768 return (0); 4769} 4770 4771/* 4772 * Delete a LUN. 4773 * Assumptions: 4774 * - LUN has already been marked invalid and any pending I/O has been taken 4775 * care of. 4776 */ 4777static int 4778ctl_free_lun(struct ctl_lun *lun) 4779{ 4780 struct ctl_softc *softc = lun->ctl_softc; 4781 struct ctl_lun *nlun; 4782 int i; 4783 4784 KASSERT(TAILQ_EMPTY(&lun->ooa_queue), 4785 ("Freeing a LUN %p with outstanding I/O!\n", lun)); 4786 4787 mtx_lock(&softc->ctl_lock); 4788 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4789 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4790 softc->ctl_luns[lun->lun] = NULL; 4791 softc->num_luns--; 4792 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4793 mtx_lock(&nlun->lun_lock); 4794 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4795 mtx_unlock(&nlun->lun_lock); 4796 } 4797 mtx_unlock(&softc->ctl_lock); 4798 4799 /* 4800 * Tell the backend to free resources, if this LUN has a backend. 4801 */ 4802 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4803 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4804 4805 lun->ie_reportcnt = UINT32_MAX; 4806 callout_drain(&lun->ie_callout); 4807 ctl_tpc_lun_shutdown(lun); 4808 mtx_destroy(&lun->lun_lock); 4809 free(lun->lun_devid, M_CTL); 4810 for (i = 0; i < ctl_max_ports; i++) 4811 free(lun->pending_ua[i], M_CTL); 4812 free(lun->pending_ua, M_DEVBUF); 4813 for (i = 0; i < ctl_max_ports; i++) 4814 free(lun->pr_keys[i], M_CTL); 4815 free(lun->pr_keys, M_DEVBUF); 4816 free(lun->write_buffer, M_CTL); 4817 free(lun->prevent, M_CTL); 4818 if (lun->flags & CTL_LUN_MALLOCED) 4819 free(lun, M_CTL); 4820 4821 return (0); 4822} 4823 4824static void 4825ctl_create_lun(struct ctl_be_lun *be_lun) 4826{ 4827 4828 /* 4829 * ctl_alloc_lun() should handle all potential failure cases. 4830 */ 4831 ctl_alloc_lun(control_softc, NULL, be_lun); 4832} 4833 4834int 4835ctl_add_lun(struct ctl_be_lun *be_lun) 4836{ 4837 struct ctl_softc *softc = control_softc; 4838 4839 mtx_lock(&softc->ctl_lock); 4840 STAILQ_INSERT_TAIL(&softc->pending_lun_queue, be_lun, links); 4841 mtx_unlock(&softc->ctl_lock); 4842 wakeup(&softc->pending_lun_queue); 4843 4844 return (0); 4845} 4846 4847int 4848ctl_enable_lun(struct ctl_be_lun *be_lun) 4849{ 4850 struct ctl_softc *softc; 4851 struct ctl_port *port, *nport; 4852 struct ctl_lun *lun; 4853 int retval; 4854 4855 lun = (struct ctl_lun *)be_lun->ctl_lun; 4856 softc = lun->ctl_softc; 4857 4858 mtx_lock(&softc->ctl_lock); 4859 mtx_lock(&lun->lun_lock); 4860 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4861 /* 4862 * eh? Why did we get called if the LUN is already 4863 * enabled? 4864 */ 4865 mtx_unlock(&lun->lun_lock); 4866 mtx_unlock(&softc->ctl_lock); 4867 return (0); 4868 } 4869 lun->flags &= ~CTL_LUN_DISABLED; 4870 mtx_unlock(&lun->lun_lock); 4871 4872 STAILQ_FOREACH_SAFE(port, &softc->port_list, links, nport) { 4873 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4874 port->lun_map != NULL || port->lun_enable == NULL) 4875 continue; 4876 4877 /* 4878 * Drop the lock while we call the FETD's enable routine. 4879 * This can lead to a callback into CTL (at least in the 4880 * case of the internal initiator frontend. 4881 */ 4882 mtx_unlock(&softc->ctl_lock); 4883 retval = port->lun_enable(port->targ_lun_arg, lun->lun); 4884 mtx_lock(&softc->ctl_lock); 4885 if (retval != 0) { 4886 printf("%s: FETD %s port %d returned error " 4887 "%d for lun_enable on lun %jd\n", 4888 __func__, port->port_name, port->targ_port, 4889 retval, (intmax_t)lun->lun); 4890 } 4891 } 4892 4893 mtx_unlock(&softc->ctl_lock); 4894 ctl_isc_announce_lun(lun); 4895 4896 return (0); 4897} 4898 4899int 4900ctl_disable_lun(struct ctl_be_lun *be_lun) 4901{ 4902 struct ctl_softc *softc; 4903 struct ctl_port *port; 4904 struct ctl_lun *lun; 4905 int retval; 4906 4907 lun = (struct ctl_lun *)be_lun->ctl_lun; 4908 softc = lun->ctl_softc; 4909 4910 mtx_lock(&softc->ctl_lock); 4911 mtx_lock(&lun->lun_lock); 4912 if (lun->flags & CTL_LUN_DISABLED) { 4913 mtx_unlock(&lun->lun_lock); 4914 mtx_unlock(&softc->ctl_lock); 4915 return (0); 4916 } 4917 lun->flags |= CTL_LUN_DISABLED; 4918 mtx_unlock(&lun->lun_lock); 4919 4920 STAILQ_FOREACH(port, &softc->port_list, links) { 4921 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4922 port->lun_map != NULL || port->lun_disable == NULL) 4923 continue; 4924 4925 /* 4926 * Drop the lock before we call the frontend's disable 4927 * routine, to avoid lock order reversals. 4928 * 4929 * XXX KDM what happens if the frontend list changes while 4930 * we're traversing it? It's unlikely, but should be handled. 4931 */ 4932 mtx_unlock(&softc->ctl_lock); 4933 retval = port->lun_disable(port->targ_lun_arg, lun->lun); 4934 mtx_lock(&softc->ctl_lock); 4935 if (retval != 0) { 4936 printf("%s: FETD %s port %d returned error " 4937 "%d for lun_disable on lun %jd\n", 4938 __func__, port->port_name, port->targ_port, 4939 retval, (intmax_t)lun->lun); 4940 } 4941 } 4942 4943 mtx_unlock(&softc->ctl_lock); 4944 ctl_isc_announce_lun(lun); 4945 4946 return (0); 4947} 4948 4949int 4950ctl_start_lun(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_STOPPED; 4956 mtx_unlock(&lun->lun_lock); 4957 return (0); 4958} 4959 4960int 4961ctl_stop_lun(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_STOPPED; 4967 mtx_unlock(&lun->lun_lock); 4968 return (0); 4969} 4970 4971int 4972ctl_lun_no_media(struct ctl_be_lun *be_lun) 4973{ 4974 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4975 4976 mtx_lock(&lun->lun_lock); 4977 lun->flags |= CTL_LUN_NO_MEDIA; 4978 mtx_unlock(&lun->lun_lock); 4979 return (0); 4980} 4981 4982int 4983ctl_lun_has_media(struct ctl_be_lun *be_lun) 4984{ 4985 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4986 union ctl_ha_msg msg; 4987 4988 mtx_lock(&lun->lun_lock); 4989 lun->flags &= ~(CTL_LUN_NO_MEDIA | CTL_LUN_EJECTED); 4990 if (lun->flags & CTL_LUN_REMOVABLE) 4991 ctl_est_ua_all(lun, -1, CTL_UA_MEDIUM_CHANGE); 4992 mtx_unlock(&lun->lun_lock); 4993 if ((lun->flags & CTL_LUN_REMOVABLE) && 4994 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 4995 bzero(&msg.ua, sizeof(msg.ua)); 4996 msg.hdr.msg_type = CTL_MSG_UA; 4997 msg.hdr.nexus.initid = -1; 4998 msg.hdr.nexus.targ_port = -1; 4999 msg.hdr.nexus.targ_lun = lun->lun; 5000 msg.hdr.nexus.targ_mapped_lun = lun->lun; 5001 msg.ua.ua_all = 1; 5002 msg.ua.ua_set = 1; 5003 msg.ua.ua_type = CTL_UA_MEDIUM_CHANGE; 5004 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 5005 M_WAITOK); 5006 } 5007 return (0); 5008} 5009 5010int 5011ctl_lun_ejected(struct ctl_be_lun *be_lun) 5012{ 5013 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 5014 5015 mtx_lock(&lun->lun_lock); 5016 lun->flags |= CTL_LUN_EJECTED; 5017 mtx_unlock(&lun->lun_lock); 5018 return (0); 5019} 5020 5021int 5022ctl_lun_primary(struct ctl_be_lun *be_lun) 5023{ 5024 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 5025 5026 mtx_lock(&lun->lun_lock); 5027 lun->flags |= CTL_LUN_PRIMARY_SC; 5028 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 5029 mtx_unlock(&lun->lun_lock); 5030 ctl_isc_announce_lun(lun); 5031 return (0); 5032} 5033 5034int 5035ctl_lun_secondary(struct ctl_be_lun *be_lun) 5036{ 5037 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 5038 5039 mtx_lock(&lun->lun_lock); 5040 lun->flags &= ~CTL_LUN_PRIMARY_SC; 5041 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 5042 mtx_unlock(&lun->lun_lock); 5043 ctl_isc_announce_lun(lun); 5044 return (0); 5045} 5046 5047int 5048ctl_invalidate_lun(struct ctl_be_lun *be_lun) 5049{ 5050 struct ctl_softc *softc; 5051 struct ctl_lun *lun; 5052 5053 lun = (struct ctl_lun *)be_lun->ctl_lun; 5054 softc = lun->ctl_softc; 5055 5056 mtx_lock(&lun->lun_lock); 5057 5058 /* 5059 * The LUN needs to be disabled before it can be marked invalid. 5060 */ 5061 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 5062 mtx_unlock(&lun->lun_lock); 5063 return (-1); 5064 } 5065 /* 5066 * Mark the LUN invalid. 5067 */ 5068 lun->flags |= CTL_LUN_INVALID; 5069 5070 /* 5071 * If there is nothing in the OOA queue, go ahead and free the LUN. 5072 * If we have something in the OOA queue, we'll free it when the 5073 * last I/O completes. 5074 */ 5075 if (TAILQ_EMPTY(&lun->ooa_queue)) { 5076 mtx_unlock(&lun->lun_lock); 5077 ctl_free_lun(lun); 5078 } else 5079 mtx_unlock(&lun->lun_lock); 5080 5081 return (0); 5082} 5083 5084void 5085ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5086{ 5087 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 5088 union ctl_ha_msg msg; 5089 5090 mtx_lock(&lun->lun_lock); 5091 ctl_est_ua_all(lun, -1, CTL_UA_CAPACITY_CHANGE); 5092 mtx_unlock(&lun->lun_lock); 5093 if (lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 5094 /* Send msg to other side. */ 5095 bzero(&msg.ua, sizeof(msg.ua)); 5096 msg.hdr.msg_type = CTL_MSG_UA; 5097 msg.hdr.nexus.initid = -1; 5098 msg.hdr.nexus.targ_port = -1; 5099 msg.hdr.nexus.targ_lun = lun->lun; 5100 msg.hdr.nexus.targ_mapped_lun = lun->lun; 5101 msg.ua.ua_all = 1; 5102 msg.ua.ua_set = 1; 5103 msg.ua.ua_type = CTL_UA_CAPACITY_CHANGE; 5104 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 5105 M_WAITOK); 5106 } 5107} 5108 5109/* 5110 * Backend "memory move is complete" callback for requests that never 5111 * make it down to say RAIDCore's configuration code. 5112 */ 5113int 5114ctl_config_move_done(union ctl_io *io) 5115{ 5116 int retval; 5117 5118 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5119 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 5120 ("Config I/O type isn't CTL_IO_SCSI (%d)!", io->io_hdr.io_type)); 5121 5122 if ((io->io_hdr.port_status != 0) && 5123 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5124 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5125 ctl_set_internal_failure(&io->scsiio, /*sks_valid*/ 1, 5126 /*retry_count*/ io->io_hdr.port_status); 5127 } else if (io->scsiio.kern_data_resid != 0 && 5128 (io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT && 5129 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5130 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5131 ctl_set_invalid_field_ciu(&io->scsiio); 5132 } 5133 5134 if (ctl_debug & CTL_DEBUG_CDB_DATA) 5135 ctl_data_print(io); 5136 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 5137 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5138 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 5139 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5140 /* 5141 * XXX KDM just assuming a single pointer here, and not a 5142 * S/G list. If we start using S/G lists for config data, 5143 * we'll need to know how to clean them up here as well. 5144 */ 5145 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5146 free(io->scsiio.kern_data_ptr, M_CTL); 5147 ctl_done(io); 5148 retval = CTL_RETVAL_COMPLETE; 5149 } else { 5150 /* 5151 * XXX KDM now we need to continue data movement. Some 5152 * options: 5153 * - call ctl_scsiio() again? We don't do this for data 5154 * writes, because for those at least we know ahead of 5155 * time where the write will go and how long it is. For 5156 * config writes, though, that information is largely 5157 * contained within the write itself, thus we need to 5158 * parse out the data again. 5159 * 5160 * - Call some other function once the data is in? 5161 */ 5162 5163 /* 5164 * XXX KDM call ctl_scsiio() again for now, and check flag 5165 * bits to see whether we're allocated or not. 5166 */ 5167 retval = ctl_scsiio(&io->scsiio); 5168 } 5169 return (retval); 5170} 5171 5172/* 5173 * This gets called by a backend driver when it is done with a 5174 * data_submit method. 5175 */ 5176void 5177ctl_data_submit_done(union ctl_io *io) 5178{ 5179 /* 5180 * If the IO_CONT flag is set, we need to call the supplied 5181 * function to continue processing the I/O, instead of completing 5182 * the I/O just yet. 5183 * 5184 * If there is an error, though, we don't want to keep processing. 5185 * Instead, just send status back to the initiator. 5186 */ 5187 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5188 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5189 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5190 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5191 io->scsiio.io_cont(io); 5192 return; 5193 } 5194 ctl_done(io); 5195} 5196 5197/* 5198 * This gets called by a backend driver when it is done with a 5199 * configuration write. 5200 */ 5201void 5202ctl_config_write_done(union ctl_io *io) 5203{ 5204 uint8_t *buf; 5205 5206 /* 5207 * If the IO_CONT flag is set, we need to call the supplied 5208 * function to continue processing the I/O, instead of completing 5209 * the I/O just yet. 5210 * 5211 * If there is an error, though, we don't want to keep processing. 5212 * Instead, just send status back to the initiator. 5213 */ 5214 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5215 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5216 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5217 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5218 io->scsiio.io_cont(io); 5219 return; 5220 } 5221 /* 5222 * Since a configuration write can be done for commands that actually 5223 * have data allocated, like write buffer, and commands that have 5224 * no data, like start/stop unit, we need to check here. 5225 */ 5226 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5227 buf = io->scsiio.kern_data_ptr; 5228 else 5229 buf = NULL; 5230 ctl_done(io); 5231 if (buf) 5232 free(buf, M_CTL); 5233} 5234 5235void 5236ctl_config_read_done(union ctl_io *io) 5237{ 5238 uint8_t *buf; 5239 5240 /* 5241 * If there is some error -- we are done, skip data transfer. 5242 */ 5243 if ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0 || 5244 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5245 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) { 5246 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5247 buf = io->scsiio.kern_data_ptr; 5248 else 5249 buf = NULL; 5250 ctl_done(io); 5251 if (buf) 5252 free(buf, M_CTL); 5253 return; 5254 } 5255 5256 /* 5257 * If the IO_CONT flag is set, we need to call the supplied 5258 * function to continue processing the I/O, instead of completing 5259 * the I/O just yet. 5260 */ 5261 if (io->io_hdr.flags & CTL_FLAG_IO_CONT) { 5262 io->scsiio.io_cont(io); 5263 return; 5264 } 5265 5266 ctl_datamove(io); 5267} 5268 5269/* 5270 * SCSI release command. 5271 */ 5272int 5273ctl_scsi_release(struct ctl_scsiio *ctsio) 5274{ 5275 struct ctl_lun *lun = CTL_LUN(ctsio); 5276 uint32_t residx; 5277 5278 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5279 5280 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5281 5282 /* 5283 * XXX KDM right now, we only support LUN reservation. We don't 5284 * support 3rd party reservations, or extent reservations, which 5285 * might actually need the parameter list. If we've gotten this 5286 * far, we've got a LUN reservation. Anything else got kicked out 5287 * above. So, according to SPC, ignore the length. 5288 */ 5289 5290 mtx_lock(&lun->lun_lock); 5291 5292 /* 5293 * According to SPC, it is not an error for an intiator to attempt 5294 * to release a reservation on a LUN that isn't reserved, or that 5295 * is reserved by another initiator. The reservation can only be 5296 * released, though, by the initiator who made it or by one of 5297 * several reset type events. 5298 */ 5299 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5300 lun->flags &= ~CTL_LUN_RESERVED; 5301 5302 mtx_unlock(&lun->lun_lock); 5303 5304 ctl_set_success(ctsio); 5305 ctl_done((union ctl_io *)ctsio); 5306 return (CTL_RETVAL_COMPLETE); 5307} 5308 5309int 5310ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5311{ 5312 struct ctl_lun *lun = CTL_LUN(ctsio); 5313 uint32_t residx; 5314 5315 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5316 5317 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5318 5319 /* 5320 * XXX KDM right now, we only support LUN reservation. We don't 5321 * support 3rd party reservations, or extent reservations, which 5322 * might actually need the parameter list. If we've gotten this 5323 * far, we've got a LUN reservation. Anything else got kicked out 5324 * above. So, according to SPC, ignore the length. 5325 */ 5326 5327 mtx_lock(&lun->lun_lock); 5328 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5329 ctl_set_reservation_conflict(ctsio); 5330 goto bailout; 5331 } 5332 5333 /* SPC-3 exceptions to SPC-2 RESERVE and RELEASE behavior. */ 5334 if (lun->flags & CTL_LUN_PR_RESERVED) { 5335 ctl_set_success(ctsio); 5336 goto bailout; 5337 } 5338 5339 lun->flags |= CTL_LUN_RESERVED; 5340 lun->res_idx = residx; 5341 ctl_set_success(ctsio); 5342 5343bailout: 5344 mtx_unlock(&lun->lun_lock); 5345 ctl_done((union ctl_io *)ctsio); 5346 return (CTL_RETVAL_COMPLETE); 5347} 5348 5349int 5350ctl_start_stop(struct ctl_scsiio *ctsio) 5351{ 5352 struct ctl_lun *lun = CTL_LUN(ctsio); 5353 struct scsi_start_stop_unit *cdb; 5354 int retval; 5355 5356 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5357 5358 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5359 5360 if ((cdb->how & SSS_PC_MASK) == 0) { 5361 if ((lun->flags & CTL_LUN_PR_RESERVED) && 5362 (cdb->how & SSS_START) == 0) { 5363 uint32_t residx; 5364 5365 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5366 if (ctl_get_prkey(lun, residx) == 0 || 5367 (lun->pr_res_idx != residx && lun->pr_res_type < 4)) { 5368 5369 ctl_set_reservation_conflict(ctsio); 5370 ctl_done((union ctl_io *)ctsio); 5371 return (CTL_RETVAL_COMPLETE); 5372 } 5373 } 5374 5375 if ((cdb->how & SSS_LOEJ) && 5376 (lun->flags & CTL_LUN_REMOVABLE) == 0) { 5377 ctl_set_invalid_field(ctsio, 5378 /*sks_valid*/ 1, 5379 /*command*/ 1, 5380 /*field*/ 4, 5381 /*bit_valid*/ 1, 5382 /*bit*/ 1); 5383 ctl_done((union ctl_io *)ctsio); 5384 return (CTL_RETVAL_COMPLETE); 5385 } 5386 5387 if ((cdb->how & SSS_START) == 0 && (cdb->how & SSS_LOEJ) && 5388 lun->prevent_count > 0) { 5389 /* "Medium removal prevented" */ 5390 ctl_set_sense(ctsio, /*current_error*/ 1, 5391 /*sense_key*/(lun->flags & CTL_LUN_NO_MEDIA) ? 5392 SSD_KEY_NOT_READY : SSD_KEY_ILLEGAL_REQUEST, 5393 /*asc*/ 0x53, /*ascq*/ 0x02, SSD_ELEM_NONE); 5394 ctl_done((union ctl_io *)ctsio); 5395 return (CTL_RETVAL_COMPLETE); 5396 } 5397 } 5398 5399 retval = lun->backend->config_write((union ctl_io *)ctsio); 5400 return (retval); 5401} 5402 5403int 5404ctl_prevent_allow(struct ctl_scsiio *ctsio) 5405{ 5406 struct ctl_lun *lun = CTL_LUN(ctsio); 5407 struct scsi_prevent *cdb; 5408 int retval; 5409 uint32_t initidx; 5410 5411 CTL_DEBUG_PRINT(("ctl_prevent_allow\n")); 5412 5413 cdb = (struct scsi_prevent *)ctsio->cdb; 5414 5415 if ((lun->flags & CTL_LUN_REMOVABLE) == 0 || lun->prevent == NULL) { 5416 ctl_set_invalid_opcode(ctsio); 5417 ctl_done((union ctl_io *)ctsio); 5418 return (CTL_RETVAL_COMPLETE); 5419 } 5420 5421 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5422 mtx_lock(&lun->lun_lock); 5423 if ((cdb->how & PR_PREVENT) && 5424 ctl_is_set(lun->prevent, initidx) == 0) { 5425 ctl_set_mask(lun->prevent, initidx); 5426 lun->prevent_count++; 5427 } else if ((cdb->how & PR_PREVENT) == 0 && 5428 ctl_is_set(lun->prevent, initidx)) { 5429 ctl_clear_mask(lun->prevent, initidx); 5430 lun->prevent_count--; 5431 } 5432 mtx_unlock(&lun->lun_lock); 5433 retval = lun->backend->config_write((union ctl_io *)ctsio); 5434 return (retval); 5435} 5436 5437/* 5438 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5439 * we don't really do anything with the LBA and length fields if the user 5440 * passes them in. Instead we'll just flush out the cache for the entire 5441 * LUN. 5442 */ 5443int 5444ctl_sync_cache(struct ctl_scsiio *ctsio) 5445{ 5446 struct ctl_lun *lun = CTL_LUN(ctsio); 5447 struct ctl_lba_len_flags *lbalen; 5448 uint64_t starting_lba; 5449 uint32_t block_count; 5450 int retval; 5451 uint8_t byte2; 5452 5453 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5454 5455 retval = 0; 5456 5457 switch (ctsio->cdb[0]) { 5458 case SYNCHRONIZE_CACHE: { 5459 struct scsi_sync_cache *cdb; 5460 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5461 5462 starting_lba = scsi_4btoul(cdb->begin_lba); 5463 block_count = scsi_2btoul(cdb->lb_count); 5464 byte2 = cdb->byte2; 5465 break; 5466 } 5467 case SYNCHRONIZE_CACHE_16: { 5468 struct scsi_sync_cache_16 *cdb; 5469 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5470 5471 starting_lba = scsi_8btou64(cdb->begin_lba); 5472 block_count = scsi_4btoul(cdb->lb_count); 5473 byte2 = cdb->byte2; 5474 break; 5475 } 5476 default: 5477 ctl_set_invalid_opcode(ctsio); 5478 ctl_done((union ctl_io *)ctsio); 5479 goto bailout; 5480 break; /* NOTREACHED */ 5481 } 5482 5483 /* 5484 * We check the LBA and length, but don't do anything with them. 5485 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5486 * get flushed. This check will just help satisfy anyone who wants 5487 * to see an error for an out of range LBA. 5488 */ 5489 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5490 ctl_set_lba_out_of_range(ctsio, 5491 MAX(starting_lba, lun->be_lun->maxlba + 1)); 5492 ctl_done((union ctl_io *)ctsio); 5493 goto bailout; 5494 } 5495 5496 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5497 lbalen->lba = starting_lba; 5498 lbalen->len = block_count; 5499 lbalen->flags = byte2; 5500 retval = lun->backend->config_write((union ctl_io *)ctsio); 5501 5502bailout: 5503 return (retval); 5504} 5505 5506int 5507ctl_format(struct ctl_scsiio *ctsio) 5508{ 5509 struct scsi_format *cdb; 5510 int length, defect_list_len; 5511 5512 CTL_DEBUG_PRINT(("ctl_format\n")); 5513 5514 cdb = (struct scsi_format *)ctsio->cdb; 5515 5516 length = 0; 5517 if (cdb->byte2 & SF_FMTDATA) { 5518 if (cdb->byte2 & SF_LONGLIST) 5519 length = sizeof(struct scsi_format_header_long); 5520 else 5521 length = sizeof(struct scsi_format_header_short); 5522 } 5523 5524 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5525 && (length > 0)) { 5526 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5527 ctsio->kern_data_len = length; 5528 ctsio->kern_total_len = length; 5529 ctsio->kern_rel_offset = 0; 5530 ctsio->kern_sg_entries = 0; 5531 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5532 ctsio->be_move_done = ctl_config_move_done; 5533 ctl_datamove((union ctl_io *)ctsio); 5534 5535 return (CTL_RETVAL_COMPLETE); 5536 } 5537 5538 defect_list_len = 0; 5539 5540 if (cdb->byte2 & SF_FMTDATA) { 5541 if (cdb->byte2 & SF_LONGLIST) { 5542 struct scsi_format_header_long *header; 5543 5544 header = (struct scsi_format_header_long *) 5545 ctsio->kern_data_ptr; 5546 5547 defect_list_len = scsi_4btoul(header->defect_list_len); 5548 if (defect_list_len != 0) { 5549 ctl_set_invalid_field(ctsio, 5550 /*sks_valid*/ 1, 5551 /*command*/ 0, 5552 /*field*/ 2, 5553 /*bit_valid*/ 0, 5554 /*bit*/ 0); 5555 goto bailout; 5556 } 5557 } else { 5558 struct scsi_format_header_short *header; 5559 5560 header = (struct scsi_format_header_short *) 5561 ctsio->kern_data_ptr; 5562 5563 defect_list_len = scsi_2btoul(header->defect_list_len); 5564 if (defect_list_len != 0) { 5565 ctl_set_invalid_field(ctsio, 5566 /*sks_valid*/ 1, 5567 /*command*/ 0, 5568 /*field*/ 2, 5569 /*bit_valid*/ 0, 5570 /*bit*/ 0); 5571 goto bailout; 5572 } 5573 } 5574 } 5575 5576 ctl_set_success(ctsio); 5577bailout: 5578 5579 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5580 free(ctsio->kern_data_ptr, M_CTL); 5581 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5582 } 5583 5584 ctl_done((union ctl_io *)ctsio); 5585 return (CTL_RETVAL_COMPLETE); 5586} 5587 5588int 5589ctl_read_buffer(struct ctl_scsiio *ctsio) 5590{ 5591 struct ctl_lun *lun = CTL_LUN(ctsio); 5592 uint64_t buffer_offset; 5593 uint32_t len; 5594 uint8_t byte2; 5595 static uint8_t descr[4]; 5596 static uint8_t echo_descr[4] = { 0 }; 5597 5598 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5599 5600 switch (ctsio->cdb[0]) { 5601 case READ_BUFFER: { 5602 struct scsi_read_buffer *cdb; 5603 5604 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5605 buffer_offset = scsi_3btoul(cdb->offset); 5606 len = scsi_3btoul(cdb->length); 5607 byte2 = cdb->byte2; 5608 break; 5609 } 5610 case READ_BUFFER_16: { 5611 struct scsi_read_buffer_16 *cdb; 5612 5613 cdb = (struct scsi_read_buffer_16 *)ctsio->cdb; 5614 buffer_offset = scsi_8btou64(cdb->offset); 5615 len = scsi_4btoul(cdb->length); 5616 byte2 = cdb->byte2; 5617 break; 5618 } 5619 default: /* This shouldn't happen. */ 5620 ctl_set_invalid_opcode(ctsio); 5621 ctl_done((union ctl_io *)ctsio); 5622 return (CTL_RETVAL_COMPLETE); 5623 } 5624 5625 if (buffer_offset > CTL_WRITE_BUFFER_SIZE || 5626 buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5627 ctl_set_invalid_field(ctsio, 5628 /*sks_valid*/ 1, 5629 /*command*/ 1, 5630 /*field*/ 6, 5631 /*bit_valid*/ 0, 5632 /*bit*/ 0); 5633 ctl_done((union ctl_io *)ctsio); 5634 return (CTL_RETVAL_COMPLETE); 5635 } 5636 5637 if ((byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5638 descr[0] = 0; 5639 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5640 ctsio->kern_data_ptr = descr; 5641 len = min(len, sizeof(descr)); 5642 } else if ((byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5643 ctsio->kern_data_ptr = echo_descr; 5644 len = min(len, sizeof(echo_descr)); 5645 } else { 5646 if (lun->write_buffer == NULL) { 5647 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5648 M_CTL, M_WAITOK); 5649 } 5650 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5651 } 5652 ctsio->kern_data_len = len; 5653 ctsio->kern_total_len = len; 5654 ctsio->kern_rel_offset = 0; 5655 ctsio->kern_sg_entries = 0; 5656 ctl_set_success(ctsio); 5657 ctsio->be_move_done = ctl_config_move_done; 5658 ctl_datamove((union ctl_io *)ctsio); 5659 return (CTL_RETVAL_COMPLETE); 5660} 5661 5662int 5663ctl_write_buffer(struct ctl_scsiio *ctsio) 5664{ 5665 struct ctl_lun *lun = CTL_LUN(ctsio); 5666 struct scsi_write_buffer *cdb; 5667 int buffer_offset, len; 5668 5669 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5670 5671 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5672 5673 len = scsi_3btoul(cdb->length); 5674 buffer_offset = scsi_3btoul(cdb->offset); 5675 5676 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5677 ctl_set_invalid_field(ctsio, 5678 /*sks_valid*/ 1, 5679 /*command*/ 1, 5680 /*field*/ 6, 5681 /*bit_valid*/ 0, 5682 /*bit*/ 0); 5683 ctl_done((union ctl_io *)ctsio); 5684 return (CTL_RETVAL_COMPLETE); 5685 } 5686 5687 /* 5688 * If we've got a kernel request that hasn't been malloced yet, 5689 * malloc it and tell the caller the data buffer is here. 5690 */ 5691 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5692 if (lun->write_buffer == NULL) { 5693 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5694 M_CTL, M_WAITOK); 5695 } 5696 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5697 ctsio->kern_data_len = len; 5698 ctsio->kern_total_len = len; 5699 ctsio->kern_rel_offset = 0; 5700 ctsio->kern_sg_entries = 0; 5701 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5702 ctsio->be_move_done = ctl_config_move_done; 5703 ctl_datamove((union ctl_io *)ctsio); 5704 5705 return (CTL_RETVAL_COMPLETE); 5706 } 5707 5708 ctl_set_success(ctsio); 5709 ctl_done((union ctl_io *)ctsio); 5710 return (CTL_RETVAL_COMPLETE); 5711} 5712 5713int 5714ctl_write_same(struct ctl_scsiio *ctsio) 5715{ 5716 struct ctl_lun *lun = CTL_LUN(ctsio); 5717 struct ctl_lba_len_flags *lbalen; 5718 uint64_t lba; 5719 uint32_t num_blocks; 5720 int len, retval; 5721 uint8_t byte2; 5722 5723 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5724 5725 switch (ctsio->cdb[0]) { 5726 case WRITE_SAME_10: { 5727 struct scsi_write_same_10 *cdb; 5728 5729 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5730 5731 lba = scsi_4btoul(cdb->addr); 5732 num_blocks = scsi_2btoul(cdb->length); 5733 byte2 = cdb->byte2; 5734 break; 5735 } 5736 case WRITE_SAME_16: { 5737 struct scsi_write_same_16 *cdb; 5738 5739 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5740 5741 lba = scsi_8btou64(cdb->addr); 5742 num_blocks = scsi_4btoul(cdb->length); 5743 byte2 = cdb->byte2; 5744 break; 5745 } 5746 default: 5747 /* 5748 * We got a command we don't support. This shouldn't 5749 * happen, commands should be filtered out above us. 5750 */ 5751 ctl_set_invalid_opcode(ctsio); 5752 ctl_done((union ctl_io *)ctsio); 5753 5754 return (CTL_RETVAL_COMPLETE); 5755 break; /* NOTREACHED */ 5756 } 5757 5758 /* ANCHOR flag can be used only together with UNMAP */ 5759 if ((byte2 & SWS_UNMAP) == 0 && (byte2 & SWS_ANCHOR) != 0) { 5760 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5761 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5762 ctl_done((union ctl_io *)ctsio); 5763 return (CTL_RETVAL_COMPLETE); 5764 } 5765 5766 /* 5767 * The first check is to make sure we're in bounds, the second 5768 * check is to catch wrap-around problems. If the lba + num blocks 5769 * is less than the lba, then we've wrapped around and the block 5770 * range is invalid anyway. 5771 */ 5772 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5773 || ((lba + num_blocks) < lba)) { 5774 ctl_set_lba_out_of_range(ctsio, 5775 MAX(lba, lun->be_lun->maxlba + 1)); 5776 ctl_done((union ctl_io *)ctsio); 5777 return (CTL_RETVAL_COMPLETE); 5778 } 5779 5780 /* Zero number of blocks means "to the last logical block" */ 5781 if (num_blocks == 0) { 5782 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5783 ctl_set_invalid_field(ctsio, 5784 /*sks_valid*/ 0, 5785 /*command*/ 1, 5786 /*field*/ 0, 5787 /*bit_valid*/ 0, 5788 /*bit*/ 0); 5789 ctl_done((union ctl_io *)ctsio); 5790 return (CTL_RETVAL_COMPLETE); 5791 } 5792 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5793 } 5794 5795 len = lun->be_lun->blocksize; 5796 5797 /* 5798 * If we've got a kernel request that hasn't been malloced yet, 5799 * malloc it and tell the caller the data buffer is here. 5800 */ 5801 if ((byte2 & SWS_NDOB) == 0 && 5802 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5803 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK); 5804 ctsio->kern_data_len = len; 5805 ctsio->kern_total_len = len; 5806 ctsio->kern_rel_offset = 0; 5807 ctsio->kern_sg_entries = 0; 5808 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5809 ctsio->be_move_done = ctl_config_move_done; 5810 ctl_datamove((union ctl_io *)ctsio); 5811 5812 return (CTL_RETVAL_COMPLETE); 5813 } 5814 5815 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5816 lbalen->lba = lba; 5817 lbalen->len = num_blocks; 5818 lbalen->flags = byte2; 5819 retval = lun->backend->config_write((union ctl_io *)ctsio); 5820 5821 return (retval); 5822} 5823 5824int 5825ctl_unmap(struct ctl_scsiio *ctsio) 5826{ 5827 struct ctl_lun *lun = CTL_LUN(ctsio); 5828 struct scsi_unmap *cdb; 5829 struct ctl_ptr_len_flags *ptrlen; 5830 struct scsi_unmap_header *hdr; 5831 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5832 uint64_t lba; 5833 uint32_t num_blocks; 5834 int len, retval; 5835 uint8_t byte2; 5836 5837 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5838 5839 cdb = (struct scsi_unmap *)ctsio->cdb; 5840 len = scsi_2btoul(cdb->length); 5841 byte2 = cdb->byte2; 5842 5843 /* 5844 * If we've got a kernel request that hasn't been malloced yet, 5845 * malloc it and tell the caller the data buffer is here. 5846 */ 5847 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5848 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK); 5849 ctsio->kern_data_len = len; 5850 ctsio->kern_total_len = len; 5851 ctsio->kern_rel_offset = 0; 5852 ctsio->kern_sg_entries = 0; 5853 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5854 ctsio->be_move_done = ctl_config_move_done; 5855 ctl_datamove((union ctl_io *)ctsio); 5856 5857 return (CTL_RETVAL_COMPLETE); 5858 } 5859 5860 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5861 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5862 if (len < sizeof (*hdr) || 5863 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5864 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5865 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5866 ctl_set_invalid_field(ctsio, 5867 /*sks_valid*/ 0, 5868 /*command*/ 0, 5869 /*field*/ 0, 5870 /*bit_valid*/ 0, 5871 /*bit*/ 0); 5872 goto done; 5873 } 5874 len = scsi_2btoul(hdr->desc_length); 5875 buf = (struct scsi_unmap_desc *)(hdr + 1); 5876 end = buf + len / sizeof(*buf); 5877 5878 endnz = buf; 5879 for (range = buf; range < end; range++) { 5880 lba = scsi_8btou64(range->lba); 5881 num_blocks = scsi_4btoul(range->length); 5882 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5883 || ((lba + num_blocks) < lba)) { 5884 ctl_set_lba_out_of_range(ctsio, 5885 MAX(lba, lun->be_lun->maxlba + 1)); 5886 ctl_done((union ctl_io *)ctsio); 5887 return (CTL_RETVAL_COMPLETE); 5888 } 5889 if (num_blocks != 0) 5890 endnz = range + 1; 5891 } 5892 5893 /* 5894 * Block backend can not handle zero last range. 5895 * Filter it out and return if there is nothing left. 5896 */ 5897 len = (uint8_t *)endnz - (uint8_t *)buf; 5898 if (len == 0) { 5899 ctl_set_success(ctsio); 5900 goto done; 5901 } 5902 5903 mtx_lock(&lun->lun_lock); 5904 ptrlen = (struct ctl_ptr_len_flags *) 5905 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5906 ptrlen->ptr = (void *)buf; 5907 ptrlen->len = len; 5908 ptrlen->flags = byte2; 5909 ctl_check_blocked(lun); 5910 mtx_unlock(&lun->lun_lock); 5911 5912 retval = lun->backend->config_write((union ctl_io *)ctsio); 5913 return (retval); 5914 5915done: 5916 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5917 free(ctsio->kern_data_ptr, M_CTL); 5918 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5919 } 5920 ctl_done((union ctl_io *)ctsio); 5921 return (CTL_RETVAL_COMPLETE); 5922} 5923 5924int 5925ctl_default_page_handler(struct ctl_scsiio *ctsio, 5926 struct ctl_page_index *page_index, uint8_t *page_ptr) 5927{ 5928 struct ctl_lun *lun = CTL_LUN(ctsio); 5929 uint8_t *current_cp; 5930 int set_ua; 5931 uint32_t initidx; 5932 5933 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5934 set_ua = 0; 5935 5936 current_cp = (page_index->page_data + (page_index->page_len * 5937 CTL_PAGE_CURRENT)); 5938 5939 mtx_lock(&lun->lun_lock); 5940 if (memcmp(current_cp, page_ptr, page_index->page_len)) { 5941 memcpy(current_cp, page_ptr, page_index->page_len); 5942 set_ua = 1; 5943 } 5944 if (set_ua != 0) 5945 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 5946 mtx_unlock(&lun->lun_lock); 5947 if (set_ua) { 5948 ctl_isc_announce_mode(lun, 5949 ctl_get_initindex(&ctsio->io_hdr.nexus), 5950 page_index->page_code, page_index->subpage); 5951 } 5952 return (CTL_RETVAL_COMPLETE); 5953} 5954 5955static void 5956ctl_ie_timer(void *arg) 5957{ 5958 struct ctl_lun *lun = arg; 5959 uint64_t t; 5960 5961 if (lun->ie_asc == 0) 5962 return; 5963 5964 if (lun->MODE_IE.mrie == SIEP_MRIE_UA) 5965 ctl_est_ua_all(lun, -1, CTL_UA_IE); 5966 else 5967 lun->ie_reported = 0; 5968 5969 if (lun->ie_reportcnt < scsi_4btoul(lun->MODE_IE.report_count)) { 5970 lun->ie_reportcnt++; 5971 t = scsi_4btoul(lun->MODE_IE.interval_timer); 5972 if (t == 0 || t == UINT32_MAX) 5973 t = 3000; /* 5 min */ 5974 callout_schedule(&lun->ie_callout, t * hz / 10); 5975 } 5976} 5977 5978int 5979ctl_ie_page_handler(struct ctl_scsiio *ctsio, 5980 struct ctl_page_index *page_index, uint8_t *page_ptr) 5981{ 5982 struct ctl_lun *lun = CTL_LUN(ctsio); 5983 struct scsi_info_exceptions_page *pg; 5984 uint64_t t; 5985 5986 (void)ctl_default_page_handler(ctsio, page_index, page_ptr); 5987 5988 pg = (struct scsi_info_exceptions_page *)page_ptr; 5989 mtx_lock(&lun->lun_lock); 5990 if (pg->info_flags & SIEP_FLAGS_TEST) { 5991 lun->ie_asc = 0x5d; 5992 lun->ie_ascq = 0xff; 5993 if (pg->mrie == SIEP_MRIE_UA) { 5994 ctl_est_ua_all(lun, -1, CTL_UA_IE); 5995 lun->ie_reported = 1; 5996 } else { 5997 ctl_clr_ua_all(lun, -1, CTL_UA_IE); 5998 lun->ie_reported = -1; 5999 } 6000 lun->ie_reportcnt = 1; 6001 if (lun->ie_reportcnt < scsi_4btoul(pg->report_count)) { 6002 lun->ie_reportcnt++; 6003 t = scsi_4btoul(pg->interval_timer); 6004 if (t == 0 || t == UINT32_MAX) 6005 t = 3000; /* 5 min */ 6006 callout_reset(&lun->ie_callout, t * hz / 10, 6007 ctl_ie_timer, lun); 6008 } 6009 } else { 6010 lun->ie_asc = 0; 6011 lun->ie_ascq = 0; 6012 lun->ie_reported = 1; 6013 ctl_clr_ua_all(lun, -1, CTL_UA_IE); 6014 lun->ie_reportcnt = UINT32_MAX; 6015 callout_stop(&lun->ie_callout); 6016 } 6017 mtx_unlock(&lun->lun_lock); 6018 return (CTL_RETVAL_COMPLETE); 6019} 6020 6021static int 6022ctl_do_mode_select(union ctl_io *io) 6023{ 6024 struct ctl_lun *lun = CTL_LUN(io); 6025 struct scsi_mode_page_header *page_header; 6026 struct ctl_page_index *page_index; 6027 struct ctl_scsiio *ctsio; 6028 int page_len, page_len_offset, page_len_size; 6029 union ctl_modepage_info *modepage_info; 6030 uint16_t *len_left, *len_used; 6031 int retval, i; 6032 6033 ctsio = &io->scsiio; 6034 page_index = NULL; 6035 page_len = 0; 6036 6037 modepage_info = (union ctl_modepage_info *) 6038 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6039 len_left = &modepage_info->header.len_left; 6040 len_used = &modepage_info->header.len_used; 6041 6042do_next_page: 6043 6044 page_header = (struct scsi_mode_page_header *) 6045 (ctsio->kern_data_ptr + *len_used); 6046 6047 if (*len_left == 0) { 6048 free(ctsio->kern_data_ptr, M_CTL); 6049 ctl_set_success(ctsio); 6050 ctl_done((union ctl_io *)ctsio); 6051 return (CTL_RETVAL_COMPLETE); 6052 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6053 6054 free(ctsio->kern_data_ptr, M_CTL); 6055 ctl_set_param_len_error(ctsio); 6056 ctl_done((union ctl_io *)ctsio); 6057 return (CTL_RETVAL_COMPLETE); 6058 6059 } else if ((page_header->page_code & SMPH_SPF) 6060 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6061 6062 free(ctsio->kern_data_ptr, M_CTL); 6063 ctl_set_param_len_error(ctsio); 6064 ctl_done((union ctl_io *)ctsio); 6065 return (CTL_RETVAL_COMPLETE); 6066 } 6067 6068 6069 /* 6070 * XXX KDM should we do something with the block descriptor? 6071 */ 6072 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6073 page_index = &lun->mode_pages.index[i]; 6074 if (lun->be_lun->lun_type == T_DIRECT && 6075 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6076 continue; 6077 if (lun->be_lun->lun_type == T_PROCESSOR && 6078 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6079 continue; 6080 if (lun->be_lun->lun_type == T_CDROM && 6081 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6082 continue; 6083 6084 if ((page_index->page_code & SMPH_PC_MASK) != 6085 (page_header->page_code & SMPH_PC_MASK)) 6086 continue; 6087 6088 /* 6089 * If neither page has a subpage code, then we've got a 6090 * match. 6091 */ 6092 if (((page_index->page_code & SMPH_SPF) == 0) 6093 && ((page_header->page_code & SMPH_SPF) == 0)) { 6094 page_len = page_header->page_length; 6095 break; 6096 } 6097 6098 /* 6099 * If both pages have subpages, then the subpage numbers 6100 * have to match. 6101 */ 6102 if ((page_index->page_code & SMPH_SPF) 6103 && (page_header->page_code & SMPH_SPF)) { 6104 struct scsi_mode_page_header_sp *sph; 6105 6106 sph = (struct scsi_mode_page_header_sp *)page_header; 6107 if (page_index->subpage == sph->subpage) { 6108 page_len = scsi_2btoul(sph->page_length); 6109 break; 6110 } 6111 } 6112 } 6113 6114 /* 6115 * If we couldn't find the page, or if we don't have a mode select 6116 * handler for it, send back an error to the user. 6117 */ 6118 if ((i >= CTL_NUM_MODE_PAGES) 6119 || (page_index->select_handler == NULL)) { 6120 ctl_set_invalid_field(ctsio, 6121 /*sks_valid*/ 1, 6122 /*command*/ 0, 6123 /*field*/ *len_used, 6124 /*bit_valid*/ 0, 6125 /*bit*/ 0); 6126 free(ctsio->kern_data_ptr, M_CTL); 6127 ctl_done((union ctl_io *)ctsio); 6128 return (CTL_RETVAL_COMPLETE); 6129 } 6130 6131 if (page_index->page_code & SMPH_SPF) { 6132 page_len_offset = 2; 6133 page_len_size = 2; 6134 } else { 6135 page_len_size = 1; 6136 page_len_offset = 1; 6137 } 6138 6139 /* 6140 * If the length the initiator gives us isn't the one we specify in 6141 * the mode page header, or if they didn't specify enough data in 6142 * the CDB to avoid truncating this page, kick out the request. 6143 */ 6144 if (page_len != page_index->page_len - page_len_offset - page_len_size) { 6145 ctl_set_invalid_field(ctsio, 6146 /*sks_valid*/ 1, 6147 /*command*/ 0, 6148 /*field*/ *len_used + page_len_offset, 6149 /*bit_valid*/ 0, 6150 /*bit*/ 0); 6151 free(ctsio->kern_data_ptr, M_CTL); 6152 ctl_done((union ctl_io *)ctsio); 6153 return (CTL_RETVAL_COMPLETE); 6154 } 6155 if (*len_left < page_index->page_len) { 6156 free(ctsio->kern_data_ptr, M_CTL); 6157 ctl_set_param_len_error(ctsio); 6158 ctl_done((union ctl_io *)ctsio); 6159 return (CTL_RETVAL_COMPLETE); 6160 } 6161 6162 /* 6163 * Run through the mode page, checking to make sure that the bits 6164 * the user changed are actually legal for him to change. 6165 */ 6166 for (i = 0; i < page_index->page_len; i++) { 6167 uint8_t *user_byte, *change_mask, *current_byte; 6168 int bad_bit; 6169 int j; 6170 6171 user_byte = (uint8_t *)page_header + i; 6172 change_mask = page_index->page_data + 6173 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6174 current_byte = page_index->page_data + 6175 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6176 6177 /* 6178 * Check to see whether the user set any bits in this byte 6179 * that he is not allowed to set. 6180 */ 6181 if ((*user_byte & ~(*change_mask)) == 6182 (*current_byte & ~(*change_mask))) 6183 continue; 6184 6185 /* 6186 * Go through bit by bit to determine which one is illegal. 6187 */ 6188 bad_bit = 0; 6189 for (j = 7; j >= 0; j--) { 6190 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6191 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6192 bad_bit = i; 6193 break; 6194 } 6195 } 6196 ctl_set_invalid_field(ctsio, 6197 /*sks_valid*/ 1, 6198 /*command*/ 0, 6199 /*field*/ *len_used + i, 6200 /*bit_valid*/ 1, 6201 /*bit*/ bad_bit); 6202 free(ctsio->kern_data_ptr, M_CTL); 6203 ctl_done((union ctl_io *)ctsio); 6204 return (CTL_RETVAL_COMPLETE); 6205 } 6206 6207 /* 6208 * Decrement these before we call the page handler, since we may 6209 * end up getting called back one way or another before the handler 6210 * returns to this context. 6211 */ 6212 *len_left -= page_index->page_len; 6213 *len_used += page_index->page_len; 6214 6215 retval = page_index->select_handler(ctsio, page_index, 6216 (uint8_t *)page_header); 6217 6218 /* 6219 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6220 * wait until this queued command completes to finish processing 6221 * the mode page. If it returns anything other than 6222 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6223 * already set the sense information, freed the data pointer, and 6224 * completed the io for us. 6225 */ 6226 if (retval != CTL_RETVAL_COMPLETE) 6227 goto bailout_no_done; 6228 6229 /* 6230 * If the initiator sent us more than one page, parse the next one. 6231 */ 6232 if (*len_left > 0) 6233 goto do_next_page; 6234 6235 ctl_set_success(ctsio); 6236 free(ctsio->kern_data_ptr, M_CTL); 6237 ctl_done((union ctl_io *)ctsio); 6238 6239bailout_no_done: 6240 6241 return (CTL_RETVAL_COMPLETE); 6242 6243} 6244 6245int 6246ctl_mode_select(struct ctl_scsiio *ctsio) 6247{ 6248 struct ctl_lun *lun = CTL_LUN(ctsio); 6249 union ctl_modepage_info *modepage_info; 6250 int bd_len, i, header_size, param_len, pf, rtd, sp; 6251 uint32_t initidx; 6252 6253 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6254 switch (ctsio->cdb[0]) { 6255 case MODE_SELECT_6: { 6256 struct scsi_mode_select_6 *cdb; 6257 6258 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6259 6260 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6261 rtd = (cdb->byte2 & SMS_RTD) ? 1 : 0; 6262 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6263 param_len = cdb->length; 6264 header_size = sizeof(struct scsi_mode_header_6); 6265 break; 6266 } 6267 case MODE_SELECT_10: { 6268 struct scsi_mode_select_10 *cdb; 6269 6270 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6271 6272 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6273 rtd = (cdb->byte2 & SMS_RTD) ? 1 : 0; 6274 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6275 param_len = scsi_2btoul(cdb->length); 6276 header_size = sizeof(struct scsi_mode_header_10); 6277 break; 6278 } 6279 default: 6280 ctl_set_invalid_opcode(ctsio); 6281 ctl_done((union ctl_io *)ctsio); 6282 return (CTL_RETVAL_COMPLETE); 6283 } 6284 6285 if (rtd) { 6286 if (param_len != 0) { 6287 ctl_set_invalid_field(ctsio, /*sks_valid*/ 0, 6288 /*command*/ 1, /*field*/ 0, 6289 /*bit_valid*/ 0, /*bit*/ 0); 6290 ctl_done((union ctl_io *)ctsio); 6291 return (CTL_RETVAL_COMPLETE); 6292 } 6293 6294 /* Revert to defaults. */ 6295 ctl_init_page_index(lun); 6296 mtx_lock(&lun->lun_lock); 6297 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 6298 mtx_unlock(&lun->lun_lock); 6299 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6300 ctl_isc_announce_mode(lun, -1, 6301 lun->mode_pages.index[i].page_code & SMPH_PC_MASK, 6302 lun->mode_pages.index[i].subpage); 6303 } 6304 ctl_set_success(ctsio); 6305 ctl_done((union ctl_io *)ctsio); 6306 return (CTL_RETVAL_COMPLETE); 6307 } 6308 6309 /* 6310 * From SPC-3: 6311 * "A parameter list length of zero indicates that the Data-Out Buffer 6312 * shall be empty. This condition shall not be considered as an error." 6313 */ 6314 if (param_len == 0) { 6315 ctl_set_success(ctsio); 6316 ctl_done((union ctl_io *)ctsio); 6317 return (CTL_RETVAL_COMPLETE); 6318 } 6319 6320 /* 6321 * Since we'll hit this the first time through, prior to 6322 * allocation, we don't need to free a data buffer here. 6323 */ 6324 if (param_len < header_size) { 6325 ctl_set_param_len_error(ctsio); 6326 ctl_done((union ctl_io *)ctsio); 6327 return (CTL_RETVAL_COMPLETE); 6328 } 6329 6330 /* 6331 * Allocate the data buffer and grab the user's data. In theory, 6332 * we shouldn't have to sanity check the parameter list length here 6333 * because the maximum size is 64K. We should be able to malloc 6334 * that much without too many problems. 6335 */ 6336 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6337 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6338 ctsio->kern_data_len = param_len; 6339 ctsio->kern_total_len = param_len; 6340 ctsio->kern_rel_offset = 0; 6341 ctsio->kern_sg_entries = 0; 6342 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6343 ctsio->be_move_done = ctl_config_move_done; 6344 ctl_datamove((union ctl_io *)ctsio); 6345 6346 return (CTL_RETVAL_COMPLETE); 6347 } 6348 6349 switch (ctsio->cdb[0]) { 6350 case MODE_SELECT_6: { 6351 struct scsi_mode_header_6 *mh6; 6352 6353 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6354 bd_len = mh6->blk_desc_len; 6355 break; 6356 } 6357 case MODE_SELECT_10: { 6358 struct scsi_mode_header_10 *mh10; 6359 6360 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6361 bd_len = scsi_2btoul(mh10->blk_desc_len); 6362 break; 6363 } 6364 default: 6365 panic("%s: Invalid CDB type %#x", __func__, ctsio->cdb[0]); 6366 } 6367 6368 if (param_len < (header_size + bd_len)) { 6369 free(ctsio->kern_data_ptr, M_CTL); 6370 ctl_set_param_len_error(ctsio); 6371 ctl_done((union ctl_io *)ctsio); 6372 return (CTL_RETVAL_COMPLETE); 6373 } 6374 6375 /* 6376 * Set the IO_CONT flag, so that if this I/O gets passed to 6377 * ctl_config_write_done(), it'll get passed back to 6378 * ctl_do_mode_select() for further processing, or completion if 6379 * we're all done. 6380 */ 6381 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6382 ctsio->io_cont = ctl_do_mode_select; 6383 6384 modepage_info = (union ctl_modepage_info *) 6385 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6386 memset(modepage_info, 0, sizeof(*modepage_info)); 6387 modepage_info->header.len_left = param_len - header_size - bd_len; 6388 modepage_info->header.len_used = header_size + bd_len; 6389 6390 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6391} 6392 6393int 6394ctl_mode_sense(struct ctl_scsiio *ctsio) 6395{ 6396 struct ctl_lun *lun = CTL_LUN(ctsio); 6397 int pc, page_code, dbd, llba, subpage; 6398 int alloc_len, page_len, header_len, total_len; 6399 struct scsi_mode_block_descr *block_desc; 6400 struct ctl_page_index *page_index; 6401 6402 dbd = 0; 6403 llba = 0; 6404 block_desc = NULL; 6405 6406 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6407 6408 switch (ctsio->cdb[0]) { 6409 case MODE_SENSE_6: { 6410 struct scsi_mode_sense_6 *cdb; 6411 6412 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6413 6414 header_len = sizeof(struct scsi_mode_hdr_6); 6415 if (cdb->byte2 & SMS_DBD) 6416 dbd = 1; 6417 else 6418 header_len += sizeof(struct scsi_mode_block_descr); 6419 6420 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6421 page_code = cdb->page & SMS_PAGE_CODE; 6422 subpage = cdb->subpage; 6423 alloc_len = cdb->length; 6424 break; 6425 } 6426 case MODE_SENSE_10: { 6427 struct scsi_mode_sense_10 *cdb; 6428 6429 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6430 6431 header_len = sizeof(struct scsi_mode_hdr_10); 6432 6433 if (cdb->byte2 & SMS_DBD) 6434 dbd = 1; 6435 else 6436 header_len += sizeof(struct scsi_mode_block_descr); 6437 if (cdb->byte2 & SMS10_LLBAA) 6438 llba = 1; 6439 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6440 page_code = cdb->page & SMS_PAGE_CODE; 6441 subpage = cdb->subpage; 6442 alloc_len = scsi_2btoul(cdb->length); 6443 break; 6444 } 6445 default: 6446 ctl_set_invalid_opcode(ctsio); 6447 ctl_done((union ctl_io *)ctsio); 6448 return (CTL_RETVAL_COMPLETE); 6449 break; /* NOTREACHED */ 6450 } 6451 6452 /* 6453 * We have to make a first pass through to calculate the size of 6454 * the pages that match the user's query. Then we allocate enough 6455 * memory to hold it, and actually copy the data into the buffer. 6456 */ 6457 switch (page_code) { 6458 case SMS_ALL_PAGES_PAGE: { 6459 u_int i; 6460 6461 page_len = 0; 6462 6463 /* 6464 * At the moment, values other than 0 and 0xff here are 6465 * reserved according to SPC-3. 6466 */ 6467 if ((subpage != SMS_SUBPAGE_PAGE_0) 6468 && (subpage != SMS_SUBPAGE_ALL)) { 6469 ctl_set_invalid_field(ctsio, 6470 /*sks_valid*/ 1, 6471 /*command*/ 1, 6472 /*field*/ 3, 6473 /*bit_valid*/ 0, 6474 /*bit*/ 0); 6475 ctl_done((union ctl_io *)ctsio); 6476 return (CTL_RETVAL_COMPLETE); 6477 } 6478 6479 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6480 page_index = &lun->mode_pages.index[i]; 6481 6482 /* Make sure the page is supported for this dev type */ 6483 if (lun->be_lun->lun_type == T_DIRECT && 6484 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6485 continue; 6486 if (lun->be_lun->lun_type == T_PROCESSOR && 6487 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6488 continue; 6489 if (lun->be_lun->lun_type == T_CDROM && 6490 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6491 continue; 6492 6493 /* 6494 * We don't use this subpage if the user didn't 6495 * request all subpages. 6496 */ 6497 if ((page_index->subpage != 0) 6498 && (subpage == SMS_SUBPAGE_PAGE_0)) 6499 continue; 6500 6501 page_len += page_index->page_len; 6502 } 6503 break; 6504 } 6505 default: { 6506 u_int i; 6507 6508 page_len = 0; 6509 6510 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6511 page_index = &lun->mode_pages.index[i]; 6512 6513 /* Make sure the page is supported for this dev type */ 6514 if (lun->be_lun->lun_type == T_DIRECT && 6515 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6516 continue; 6517 if (lun->be_lun->lun_type == T_PROCESSOR && 6518 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6519 continue; 6520 if (lun->be_lun->lun_type == T_CDROM && 6521 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6522 continue; 6523 6524 /* Look for the right page code */ 6525 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6526 continue; 6527 6528 /* Look for the right subpage or the subpage wildcard*/ 6529 if ((page_index->subpage != subpage) 6530 && (subpage != SMS_SUBPAGE_ALL)) 6531 continue; 6532 6533 page_len += page_index->page_len; 6534 } 6535 6536 if (page_len == 0) { 6537 ctl_set_invalid_field(ctsio, 6538 /*sks_valid*/ 1, 6539 /*command*/ 1, 6540 /*field*/ 2, 6541 /*bit_valid*/ 1, 6542 /*bit*/ 5); 6543 ctl_done((union ctl_io *)ctsio); 6544 return (CTL_RETVAL_COMPLETE); 6545 } 6546 break; 6547 } 6548 } 6549 6550 total_len = header_len + page_len; 6551 6552 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6553 ctsio->kern_sg_entries = 0; 6554 ctsio->kern_rel_offset = 0; 6555 ctsio->kern_data_len = min(total_len, alloc_len); 6556 ctsio->kern_total_len = ctsio->kern_data_len; 6557 6558 switch (ctsio->cdb[0]) { 6559 case MODE_SENSE_6: { 6560 struct scsi_mode_hdr_6 *header; 6561 6562 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6563 6564 header->datalen = MIN(total_len - 1, 254); 6565 if (lun->be_lun->lun_type == T_DIRECT) { 6566 header->dev_specific = 0x10; /* DPOFUA */ 6567 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6568 (lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) 6569 header->dev_specific |= 0x80; /* WP */ 6570 } 6571 if (dbd) 6572 header->block_descr_len = 0; 6573 else 6574 header->block_descr_len = 6575 sizeof(struct scsi_mode_block_descr); 6576 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6577 break; 6578 } 6579 case MODE_SENSE_10: { 6580 struct scsi_mode_hdr_10 *header; 6581 int datalen; 6582 6583 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6584 6585 datalen = MIN(total_len - 2, 65533); 6586 scsi_ulto2b(datalen, header->datalen); 6587 if (lun->be_lun->lun_type == T_DIRECT) { 6588 header->dev_specific = 0x10; /* DPOFUA */ 6589 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6590 (lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) 6591 header->dev_specific |= 0x80; /* WP */ 6592 } 6593 if (dbd) 6594 scsi_ulto2b(0, header->block_descr_len); 6595 else 6596 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6597 header->block_descr_len); 6598 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6599 break; 6600 } 6601 default: 6602 panic("%s: Invalid CDB type %#x", __func__, ctsio->cdb[0]); 6603 } 6604 6605 /* 6606 * If we've got a disk, use its blocksize in the block 6607 * descriptor. Otherwise, just set it to 0. 6608 */ 6609 if (dbd == 0) { 6610 if (lun->be_lun->lun_type == T_DIRECT) 6611 scsi_ulto3b(lun->be_lun->blocksize, 6612 block_desc->block_len); 6613 else 6614 scsi_ulto3b(0, block_desc->block_len); 6615 } 6616 6617 switch (page_code) { 6618 case SMS_ALL_PAGES_PAGE: { 6619 int i, data_used; 6620 6621 data_used = header_len; 6622 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6623 struct ctl_page_index *page_index; 6624 6625 page_index = &lun->mode_pages.index[i]; 6626 if (lun->be_lun->lun_type == T_DIRECT && 6627 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6628 continue; 6629 if (lun->be_lun->lun_type == T_PROCESSOR && 6630 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6631 continue; 6632 if (lun->be_lun->lun_type == T_CDROM && 6633 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6634 continue; 6635 6636 /* 6637 * We don't use this subpage if the user didn't 6638 * request all subpages. We already checked (above) 6639 * to make sure the user only specified a subpage 6640 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6641 */ 6642 if ((page_index->subpage != 0) 6643 && (subpage == SMS_SUBPAGE_PAGE_0)) 6644 continue; 6645 6646 /* 6647 * Call the handler, if it exists, to update the 6648 * page to the latest values. 6649 */ 6650 if (page_index->sense_handler != NULL) 6651 page_index->sense_handler(ctsio, page_index,pc); 6652 6653 memcpy(ctsio->kern_data_ptr + data_used, 6654 page_index->page_data + 6655 (page_index->page_len * pc), 6656 page_index->page_len); 6657 data_used += page_index->page_len; 6658 } 6659 break; 6660 } 6661 default: { 6662 int i, data_used; 6663 6664 data_used = header_len; 6665 6666 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6667 struct ctl_page_index *page_index; 6668 6669 page_index = &lun->mode_pages.index[i]; 6670 6671 /* Look for the right page code */ 6672 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6673 continue; 6674 6675 /* Look for the right subpage or the subpage wildcard*/ 6676 if ((page_index->subpage != subpage) 6677 && (subpage != SMS_SUBPAGE_ALL)) 6678 continue; 6679 6680 /* Make sure the page is supported for this dev type */ 6681 if (lun->be_lun->lun_type == T_DIRECT && 6682 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6683 continue; 6684 if (lun->be_lun->lun_type == T_PROCESSOR && 6685 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6686 continue; 6687 if (lun->be_lun->lun_type == T_CDROM && 6688 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6689 continue; 6690 6691 /* 6692 * Call the handler, if it exists, to update the 6693 * page to the latest values. 6694 */ 6695 if (page_index->sense_handler != NULL) 6696 page_index->sense_handler(ctsio, page_index,pc); 6697 6698 memcpy(ctsio->kern_data_ptr + data_used, 6699 page_index->page_data + 6700 (page_index->page_len * pc), 6701 page_index->page_len); 6702 data_used += page_index->page_len; 6703 } 6704 break; 6705 } 6706 } 6707 6708 ctl_set_success(ctsio); 6709 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6710 ctsio->be_move_done = ctl_config_move_done; 6711 ctl_datamove((union ctl_io *)ctsio); 6712 return (CTL_RETVAL_COMPLETE); 6713} 6714 6715int 6716ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6717 struct ctl_page_index *page_index, 6718 int pc) 6719{ 6720 struct ctl_lun *lun = CTL_LUN(ctsio); 6721 struct scsi_log_param_header *phdr; 6722 uint8_t *data; 6723 uint64_t val; 6724 6725 data = page_index->page_data; 6726 6727 if (lun->backend->lun_attr != NULL && 6728 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6729 != UINT64_MAX) { 6730 phdr = (struct scsi_log_param_header *)data; 6731 scsi_ulto2b(0x0001, phdr->param_code); 6732 phdr->param_control = SLP_LBIN | SLP_LP; 6733 phdr->param_len = 8; 6734 data = (uint8_t *)(phdr + 1); 6735 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6736 data[4] = 0x02; /* per-pool */ 6737 data += phdr->param_len; 6738 } 6739 6740 if (lun->backend->lun_attr != NULL && 6741 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6742 != UINT64_MAX) { 6743 phdr = (struct scsi_log_param_header *)data; 6744 scsi_ulto2b(0x0002, phdr->param_code); 6745 phdr->param_control = SLP_LBIN | SLP_LP; 6746 phdr->param_len = 8; 6747 data = (uint8_t *)(phdr + 1); 6748 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6749 data[4] = 0x01; /* per-LUN */ 6750 data += phdr->param_len; 6751 } 6752 6753 if (lun->backend->lun_attr != NULL && 6754 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6755 != UINT64_MAX) { 6756 phdr = (struct scsi_log_param_header *)data; 6757 scsi_ulto2b(0x00f1, phdr->param_code); 6758 phdr->param_control = SLP_LBIN | SLP_LP; 6759 phdr->param_len = 8; 6760 data = (uint8_t *)(phdr + 1); 6761 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6762 data[4] = 0x02; /* per-pool */ 6763 data += phdr->param_len; 6764 } 6765 6766 if (lun->backend->lun_attr != NULL && 6767 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 6768 != UINT64_MAX) { 6769 phdr = (struct scsi_log_param_header *)data; 6770 scsi_ulto2b(0x00f2, phdr->param_code); 6771 phdr->param_control = SLP_LBIN | SLP_LP; 6772 phdr->param_len = 8; 6773 data = (uint8_t *)(phdr + 1); 6774 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6775 data[4] = 0x02; /* per-pool */ 6776 data += phdr->param_len; 6777 } 6778 6779 page_index->page_len = data - page_index->page_data; 6780 return (0); 6781} 6782 6783int 6784ctl_sap_log_sense_handler(struct ctl_scsiio *ctsio, 6785 struct ctl_page_index *page_index, 6786 int pc) 6787{ 6788 struct ctl_lun *lun = CTL_LUN(ctsio); 6789 struct stat_page *data; 6790 struct bintime *t; 6791 6792 data = (struct stat_page *)page_index->page_data; 6793 6794 scsi_ulto2b(SLP_SAP, data->sap.hdr.param_code); 6795 data->sap.hdr.param_control = SLP_LBIN; 6796 data->sap.hdr.param_len = sizeof(struct scsi_log_stat_and_perf) - 6797 sizeof(struct scsi_log_param_header); 6798 scsi_u64to8b(lun->stats.operations[CTL_STATS_READ], 6799 data->sap.read_num); 6800 scsi_u64to8b(lun->stats.operations[CTL_STATS_WRITE], 6801 data->sap.write_num); 6802 if (lun->be_lun->blocksize > 0) { 6803 scsi_u64to8b(lun->stats.bytes[CTL_STATS_WRITE] / 6804 lun->be_lun->blocksize, data->sap.recvieved_lba); 6805 scsi_u64to8b(lun->stats.bytes[CTL_STATS_READ] / 6806 lun->be_lun->blocksize, data->sap.transmitted_lba); 6807 } 6808 t = &lun->stats.time[CTL_STATS_READ]; 6809 scsi_u64to8b((uint64_t)t->sec * 1000 + t->frac / (UINT64_MAX / 1000), 6810 data->sap.read_int); 6811 t = &lun->stats.time[CTL_STATS_WRITE]; 6812 scsi_u64to8b((uint64_t)t->sec * 1000 + t->frac / (UINT64_MAX / 1000), 6813 data->sap.write_int); 6814 scsi_u64to8b(0, data->sap.weighted_num); 6815 scsi_u64to8b(0, data->sap.weighted_int); 6816 scsi_ulto2b(SLP_IT, data->it.hdr.param_code); 6817 data->it.hdr.param_control = SLP_LBIN; 6818 data->it.hdr.param_len = sizeof(struct scsi_log_idle_time) - 6819 sizeof(struct scsi_log_param_header); 6820#ifdef CTL_TIME_IO 6821 scsi_u64to8b(lun->idle_time / SBT_1MS, data->it.idle_int); 6822#endif 6823 scsi_ulto2b(SLP_TI, data->ti.hdr.param_code); 6824 data->it.hdr.param_control = SLP_LBIN; 6825 data->ti.hdr.param_len = sizeof(struct scsi_log_time_interval) - 6826 sizeof(struct scsi_log_param_header); 6827 scsi_ulto4b(3, data->ti.exponent); 6828 scsi_ulto4b(1, data->ti.integer); 6829 return (0); 6830} 6831 6832int 6833ctl_ie_log_sense_handler(struct ctl_scsiio *ctsio, 6834 struct ctl_page_index *page_index, 6835 int pc) 6836{ 6837 struct ctl_lun *lun = CTL_LUN(ctsio); 6838 struct scsi_log_informational_exceptions *data; 6839 6840 data = (struct scsi_log_informational_exceptions *)page_index->page_data; 6841 6842 scsi_ulto2b(SLP_IE_GEN, data->hdr.param_code); 6843 data->hdr.param_control = SLP_LBIN; 6844 data->hdr.param_len = sizeof(struct scsi_log_informational_exceptions) - 6845 sizeof(struct scsi_log_param_header); 6846 data->ie_asc = lun->ie_asc; 6847 data->ie_ascq = lun->ie_ascq; 6848 data->temperature = 0xff; 6849 return (0); 6850} 6851 6852int 6853ctl_log_sense(struct ctl_scsiio *ctsio) 6854{ 6855 struct ctl_lun *lun = CTL_LUN(ctsio); 6856 int i, pc, page_code, subpage; 6857 int alloc_len, total_len; 6858 struct ctl_page_index *page_index; 6859 struct scsi_log_sense *cdb; 6860 struct scsi_log_header *header; 6861 6862 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 6863 6864 cdb = (struct scsi_log_sense *)ctsio->cdb; 6865 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 6866 page_code = cdb->page & SLS_PAGE_CODE; 6867 subpage = cdb->subpage; 6868 alloc_len = scsi_2btoul(cdb->length); 6869 6870 page_index = NULL; 6871 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 6872 page_index = &lun->log_pages.index[i]; 6873 6874 /* Look for the right page code */ 6875 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 6876 continue; 6877 6878 /* Look for the right subpage or the subpage wildcard*/ 6879 if (page_index->subpage != subpage) 6880 continue; 6881 6882 break; 6883 } 6884 if (i >= CTL_NUM_LOG_PAGES) { 6885 ctl_set_invalid_field(ctsio, 6886 /*sks_valid*/ 1, 6887 /*command*/ 1, 6888 /*field*/ 2, 6889 /*bit_valid*/ 0, 6890 /*bit*/ 0); 6891 ctl_done((union ctl_io *)ctsio); 6892 return (CTL_RETVAL_COMPLETE); 6893 } 6894 6895 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 6896 6897 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6898 ctsio->kern_sg_entries = 0; 6899 ctsio->kern_rel_offset = 0; 6900 ctsio->kern_data_len = min(total_len, alloc_len); 6901 ctsio->kern_total_len = ctsio->kern_data_len; 6902 6903 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 6904 header->page = page_index->page_code; 6905 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING) 6906 header->page |= SL_DS; 6907 if (page_index->subpage) { 6908 header->page |= SL_SPF; 6909 header->subpage = page_index->subpage; 6910 } 6911 scsi_ulto2b(page_index->page_len, header->datalen); 6912 6913 /* 6914 * Call the handler, if it exists, to update the 6915 * page to the latest values. 6916 */ 6917 if (page_index->sense_handler != NULL) 6918 page_index->sense_handler(ctsio, page_index, pc); 6919 6920 memcpy(header + 1, page_index->page_data, page_index->page_len); 6921 6922 ctl_set_success(ctsio); 6923 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6924 ctsio->be_move_done = ctl_config_move_done; 6925 ctl_datamove((union ctl_io *)ctsio); 6926 return (CTL_RETVAL_COMPLETE); 6927} 6928 6929int 6930ctl_read_capacity(struct ctl_scsiio *ctsio) 6931{ 6932 struct ctl_lun *lun = CTL_LUN(ctsio); 6933 struct scsi_read_capacity *cdb; 6934 struct scsi_read_capacity_data *data; 6935 uint32_t lba; 6936 6937 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 6938 6939 cdb = (struct scsi_read_capacity *)ctsio->cdb; 6940 6941 lba = scsi_4btoul(cdb->addr); 6942 if (((cdb->pmi & SRC_PMI) == 0) 6943 && (lba != 0)) { 6944 ctl_set_invalid_field(/*ctsio*/ ctsio, 6945 /*sks_valid*/ 1, 6946 /*command*/ 1, 6947 /*field*/ 2, 6948 /*bit_valid*/ 0, 6949 /*bit*/ 0); 6950 ctl_done((union ctl_io *)ctsio); 6951 return (CTL_RETVAL_COMPLETE); 6952 } 6953 6954 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6955 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 6956 ctsio->kern_data_len = sizeof(*data); 6957 ctsio->kern_total_len = sizeof(*data); 6958 ctsio->kern_rel_offset = 0; 6959 ctsio->kern_sg_entries = 0; 6960 6961 /* 6962 * If the maximum LBA is greater than 0xfffffffe, the user must 6963 * issue a SERVICE ACTION IN (16) command, with the read capacity 6964 * serivce action set. 6965 */ 6966 if (lun->be_lun->maxlba > 0xfffffffe) 6967 scsi_ulto4b(0xffffffff, data->addr); 6968 else 6969 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 6970 6971 /* 6972 * XXX KDM this may not be 512 bytes... 6973 */ 6974 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6975 6976 ctl_set_success(ctsio); 6977 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6978 ctsio->be_move_done = ctl_config_move_done; 6979 ctl_datamove((union ctl_io *)ctsio); 6980 return (CTL_RETVAL_COMPLETE); 6981} 6982 6983int 6984ctl_read_capacity_16(struct ctl_scsiio *ctsio) 6985{ 6986 struct ctl_lun *lun = CTL_LUN(ctsio); 6987 struct scsi_read_capacity_16 *cdb; 6988 struct scsi_read_capacity_data_long *data; 6989 uint64_t lba; 6990 uint32_t alloc_len; 6991 6992 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 6993 6994 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 6995 6996 alloc_len = scsi_4btoul(cdb->alloc_len); 6997 lba = scsi_8btou64(cdb->addr); 6998 6999 if ((cdb->reladr & SRC16_PMI) 7000 && (lba != 0)) { 7001 ctl_set_invalid_field(/*ctsio*/ ctsio, 7002 /*sks_valid*/ 1, 7003 /*command*/ 1, 7004 /*field*/ 2, 7005 /*bit_valid*/ 0, 7006 /*bit*/ 0); 7007 ctl_done((union ctl_io *)ctsio); 7008 return (CTL_RETVAL_COMPLETE); 7009 } 7010 7011 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7012 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7013 ctsio->kern_rel_offset = 0; 7014 ctsio->kern_sg_entries = 0; 7015 ctsio->kern_data_len = min(sizeof(*data), alloc_len); 7016 ctsio->kern_total_len = ctsio->kern_data_len; 7017 7018 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7019 /* XXX KDM this may not be 512 bytes... */ 7020 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7021 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7022 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7023 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7024 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7025 7026 ctl_set_success(ctsio); 7027 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7028 ctsio->be_move_done = ctl_config_move_done; 7029 ctl_datamove((union ctl_io *)ctsio); 7030 return (CTL_RETVAL_COMPLETE); 7031} 7032 7033int 7034ctl_get_lba_status(struct ctl_scsiio *ctsio) 7035{ 7036 struct ctl_lun *lun = CTL_LUN(ctsio); 7037 struct scsi_get_lba_status *cdb; 7038 struct scsi_get_lba_status_data *data; 7039 struct ctl_lba_len_flags *lbalen; 7040 uint64_t lba; 7041 uint32_t alloc_len, total_len; 7042 int retval; 7043 7044 CTL_DEBUG_PRINT(("ctl_get_lba_status\n")); 7045 7046 cdb = (struct scsi_get_lba_status *)ctsio->cdb; 7047 lba = scsi_8btou64(cdb->addr); 7048 alloc_len = scsi_4btoul(cdb->alloc_len); 7049 7050 if (lba > lun->be_lun->maxlba) { 7051 ctl_set_lba_out_of_range(ctsio, lba); 7052 ctl_done((union ctl_io *)ctsio); 7053 return (CTL_RETVAL_COMPLETE); 7054 } 7055 7056 total_len = sizeof(*data) + sizeof(data->descr[0]); 7057 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7058 data = (struct scsi_get_lba_status_data *)ctsio->kern_data_ptr; 7059 ctsio->kern_rel_offset = 0; 7060 ctsio->kern_sg_entries = 0; 7061 ctsio->kern_data_len = min(total_len, alloc_len); 7062 ctsio->kern_total_len = ctsio->kern_data_len; 7063 7064 /* Fill dummy data in case backend can't tell anything. */ 7065 scsi_ulto4b(4 + sizeof(data->descr[0]), data->length); 7066 scsi_u64to8b(lba, data->descr[0].addr); 7067 scsi_ulto4b(MIN(UINT32_MAX, lun->be_lun->maxlba + 1 - lba), 7068 data->descr[0].length); 7069 data->descr[0].status = 0; /* Mapped or unknown. */ 7070 7071 ctl_set_success(ctsio); 7072 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7073 ctsio->be_move_done = ctl_config_move_done; 7074 7075 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 7076 lbalen->lba = lba; 7077 lbalen->len = total_len; 7078 lbalen->flags = 0; 7079 retval = lun->backend->config_read((union ctl_io *)ctsio); 7080 return (retval); 7081} 7082 7083int 7084ctl_read_defect(struct ctl_scsiio *ctsio) 7085{ 7086 struct scsi_read_defect_data_10 *ccb10; 7087 struct scsi_read_defect_data_12 *ccb12; 7088 struct scsi_read_defect_data_hdr_10 *data10; 7089 struct scsi_read_defect_data_hdr_12 *data12; 7090 uint32_t alloc_len, data_len; 7091 uint8_t format; 7092 7093 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7094 7095 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7096 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7097 format = ccb10->format; 7098 alloc_len = scsi_2btoul(ccb10->alloc_length); 7099 data_len = sizeof(*data10); 7100 } else { 7101 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7102 format = ccb12->format; 7103 alloc_len = scsi_4btoul(ccb12->alloc_length); 7104 data_len = sizeof(*data12); 7105 } 7106 if (alloc_len == 0) { 7107 ctl_set_success(ctsio); 7108 ctl_done((union ctl_io *)ctsio); 7109 return (CTL_RETVAL_COMPLETE); 7110 } 7111 7112 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7113 ctsio->kern_rel_offset = 0; 7114 ctsio->kern_sg_entries = 0; 7115 ctsio->kern_data_len = min(data_len, alloc_len); 7116 ctsio->kern_total_len = ctsio->kern_data_len; 7117 7118 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7119 data10 = (struct scsi_read_defect_data_hdr_10 *) 7120 ctsio->kern_data_ptr; 7121 data10->format = format; 7122 scsi_ulto2b(0, data10->length); 7123 } else { 7124 data12 = (struct scsi_read_defect_data_hdr_12 *) 7125 ctsio->kern_data_ptr; 7126 data12->format = format; 7127 scsi_ulto2b(0, data12->generation); 7128 scsi_ulto4b(0, data12->length); 7129 } 7130 7131 ctl_set_success(ctsio); 7132 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7133 ctsio->be_move_done = ctl_config_move_done; 7134 ctl_datamove((union ctl_io *)ctsio); 7135 return (CTL_RETVAL_COMPLETE); 7136} 7137 7138int 7139ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7140{ 7141 struct ctl_softc *softc = CTL_SOFTC(ctsio); 7142 struct ctl_lun *lun = CTL_LUN(ctsio); 7143 struct scsi_maintenance_in *cdb; 7144 int retval; 7145 int alloc_len, ext, total_len = 0, g, pc, pg, ts, os; 7146 int num_ha_groups, num_target_ports, shared_group; 7147 struct ctl_port *port; 7148 struct scsi_target_group_data *rtg_ptr; 7149 struct scsi_target_group_data_extended *rtg_ext_ptr; 7150 struct scsi_target_port_group_descriptor *tpg_desc; 7151 7152 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7153 7154 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7155 retval = CTL_RETVAL_COMPLETE; 7156 7157 switch (cdb->byte2 & STG_PDF_MASK) { 7158 case STG_PDF_LENGTH: 7159 ext = 0; 7160 break; 7161 case STG_PDF_EXTENDED: 7162 ext = 1; 7163 break; 7164 default: 7165 ctl_set_invalid_field(/*ctsio*/ ctsio, 7166 /*sks_valid*/ 1, 7167 /*command*/ 1, 7168 /*field*/ 2, 7169 /*bit_valid*/ 1, 7170 /*bit*/ 5); 7171 ctl_done((union ctl_io *)ctsio); 7172 return(retval); 7173 } 7174 7175 num_target_ports = 0; 7176 shared_group = (softc->is_single != 0); 7177 mtx_lock(&softc->ctl_lock); 7178 STAILQ_FOREACH(port, &softc->port_list, links) { 7179 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7180 continue; 7181 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 7182 continue; 7183 num_target_ports++; 7184 if (port->status & CTL_PORT_STATUS_HA_SHARED) 7185 shared_group = 1; 7186 } 7187 mtx_unlock(&softc->ctl_lock); 7188 num_ha_groups = (softc->is_single) ? 0 : NUM_HA_SHELVES; 7189 7190 if (ext) 7191 total_len = sizeof(struct scsi_target_group_data_extended); 7192 else 7193 total_len = sizeof(struct scsi_target_group_data); 7194 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7195 (shared_group + num_ha_groups) + 7196 sizeof(struct scsi_target_port_descriptor) * num_target_ports; 7197 7198 alloc_len = scsi_4btoul(cdb->length); 7199 7200 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7201 ctsio->kern_sg_entries = 0; 7202 ctsio->kern_rel_offset = 0; 7203 ctsio->kern_data_len = min(total_len, alloc_len); 7204 ctsio->kern_total_len = ctsio->kern_data_len; 7205 7206 if (ext) { 7207 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7208 ctsio->kern_data_ptr; 7209 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7210 rtg_ext_ptr->format_type = 0x10; 7211 rtg_ext_ptr->implicit_transition_time = 0; 7212 tpg_desc = &rtg_ext_ptr->groups[0]; 7213 } else { 7214 rtg_ptr = (struct scsi_target_group_data *) 7215 ctsio->kern_data_ptr; 7216 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7217 tpg_desc = &rtg_ptr->groups[0]; 7218 } 7219 7220 mtx_lock(&softc->ctl_lock); 7221 pg = softc->port_min / softc->port_cnt; 7222 if (lun->flags & (CTL_LUN_PRIMARY_SC | CTL_LUN_PEER_SC_PRIMARY)) { 7223 /* Some shelf is known to be primary. */ 7224 if (softc->ha_link == CTL_HA_LINK_OFFLINE) 7225 os = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7226 else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) 7227 os = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7228 else if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) 7229 os = TPG_ASYMMETRIC_ACCESS_STANDBY; 7230 else 7231 os = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7232 if (lun->flags & CTL_LUN_PRIMARY_SC) { 7233 ts = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7234 } else { 7235 ts = os; 7236 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7237 } 7238 } else { 7239 /* No known primary shelf. */ 7240 if (softc->ha_link == CTL_HA_LINK_OFFLINE) { 7241 ts = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7242 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7243 } else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) { 7244 ts = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7245 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7246 } else { 7247 ts = os = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7248 } 7249 } 7250 if (shared_group) { 7251 tpg_desc->pref_state = ts; 7252 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7253 TPG_U_SUP | TPG_T_SUP; 7254 scsi_ulto2b(1, tpg_desc->target_port_group); 7255 tpg_desc->status = TPG_IMPLICIT; 7256 pc = 0; 7257 STAILQ_FOREACH(port, &softc->port_list, links) { 7258 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7259 continue; 7260 if (!softc->is_single && 7261 (port->status & CTL_PORT_STATUS_HA_SHARED) == 0) 7262 continue; 7263 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 7264 continue; 7265 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7266 relative_target_port_identifier); 7267 pc++; 7268 } 7269 tpg_desc->target_port_count = pc; 7270 tpg_desc = (struct scsi_target_port_group_descriptor *) 7271 &tpg_desc->descriptors[pc]; 7272 } 7273 for (g = 0; g < num_ha_groups; g++) { 7274 tpg_desc->pref_state = (g == pg) ? ts : os; 7275 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7276 TPG_U_SUP | TPG_T_SUP; 7277 scsi_ulto2b(2 + g, tpg_desc->target_port_group); 7278 tpg_desc->status = TPG_IMPLICIT; 7279 pc = 0; 7280 STAILQ_FOREACH(port, &softc->port_list, links) { 7281 if (port->targ_port < g * softc->port_cnt || 7282 port->targ_port >= (g + 1) * softc->port_cnt) 7283 continue; 7284 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7285 continue; 7286 if (port->status & CTL_PORT_STATUS_HA_SHARED) 7287 continue; 7288 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 7289 continue; 7290 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7291 relative_target_port_identifier); 7292 pc++; 7293 } 7294 tpg_desc->target_port_count = pc; 7295 tpg_desc = (struct scsi_target_port_group_descriptor *) 7296 &tpg_desc->descriptors[pc]; 7297 } 7298 mtx_unlock(&softc->ctl_lock); 7299 7300 ctl_set_success(ctsio); 7301 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7302 ctsio->be_move_done = ctl_config_move_done; 7303 ctl_datamove((union ctl_io *)ctsio); 7304 return(retval); 7305} 7306 7307int 7308ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7309{ 7310 struct ctl_lun *lun = CTL_LUN(ctsio); 7311 struct scsi_report_supported_opcodes *cdb; 7312 const struct ctl_cmd_entry *entry, *sentry; 7313 struct scsi_report_supported_opcodes_all *all; 7314 struct scsi_report_supported_opcodes_descr *descr; 7315 struct scsi_report_supported_opcodes_one *one; 7316 int retval; 7317 int alloc_len, total_len; 7318 int opcode, service_action, i, j, num; 7319 7320 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7321 7322 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7323 retval = CTL_RETVAL_COMPLETE; 7324 7325 opcode = cdb->requested_opcode; 7326 service_action = scsi_2btoul(cdb->requested_service_action); 7327 switch (cdb->options & RSO_OPTIONS_MASK) { 7328 case RSO_OPTIONS_ALL: 7329 num = 0; 7330 for (i = 0; i < 256; i++) { 7331 entry = &ctl_cmd_table[i]; 7332 if (entry->flags & CTL_CMD_FLAG_SA5) { 7333 for (j = 0; j < 32; j++) { 7334 sentry = &((const struct ctl_cmd_entry *) 7335 entry->execute)[j]; 7336 if (ctl_cmd_applicable( 7337 lun->be_lun->lun_type, sentry)) 7338 num++; 7339 } 7340 } else { 7341 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7342 entry)) 7343 num++; 7344 } 7345 } 7346 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7347 num * sizeof(struct scsi_report_supported_opcodes_descr); 7348 break; 7349 case RSO_OPTIONS_OC: 7350 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7351 ctl_set_invalid_field(/*ctsio*/ ctsio, 7352 /*sks_valid*/ 1, 7353 /*command*/ 1, 7354 /*field*/ 2, 7355 /*bit_valid*/ 1, 7356 /*bit*/ 2); 7357 ctl_done((union ctl_io *)ctsio); 7358 return (CTL_RETVAL_COMPLETE); 7359 } 7360 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7361 break; 7362 case RSO_OPTIONS_OC_SA: 7363 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7364 service_action >= 32) { 7365 ctl_set_invalid_field(/*ctsio*/ ctsio, 7366 /*sks_valid*/ 1, 7367 /*command*/ 1, 7368 /*field*/ 2, 7369 /*bit_valid*/ 1, 7370 /*bit*/ 2); 7371 ctl_done((union ctl_io *)ctsio); 7372 return (CTL_RETVAL_COMPLETE); 7373 } 7374 /* FALLTHROUGH */ 7375 case RSO_OPTIONS_OC_ASA: 7376 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7377 break; 7378 default: 7379 ctl_set_invalid_field(/*ctsio*/ ctsio, 7380 /*sks_valid*/ 1, 7381 /*command*/ 1, 7382 /*field*/ 2, 7383 /*bit_valid*/ 1, 7384 /*bit*/ 2); 7385 ctl_done((union ctl_io *)ctsio); 7386 return (CTL_RETVAL_COMPLETE); 7387 } 7388 7389 alloc_len = scsi_4btoul(cdb->length); 7390 7391 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7392 ctsio->kern_sg_entries = 0; 7393 ctsio->kern_rel_offset = 0; 7394 ctsio->kern_data_len = min(total_len, alloc_len); 7395 ctsio->kern_total_len = ctsio->kern_data_len; 7396 7397 switch (cdb->options & RSO_OPTIONS_MASK) { 7398 case RSO_OPTIONS_ALL: 7399 all = (struct scsi_report_supported_opcodes_all *) 7400 ctsio->kern_data_ptr; 7401 num = 0; 7402 for (i = 0; i < 256; i++) { 7403 entry = &ctl_cmd_table[i]; 7404 if (entry->flags & CTL_CMD_FLAG_SA5) { 7405 for (j = 0; j < 32; j++) { 7406 sentry = &((const struct ctl_cmd_entry *) 7407 entry->execute)[j]; 7408 if (!ctl_cmd_applicable( 7409 lun->be_lun->lun_type, sentry)) 7410 continue; 7411 descr = &all->descr[num++]; 7412 descr->opcode = i; 7413 scsi_ulto2b(j, descr->service_action); 7414 descr->flags = RSO_SERVACTV; 7415 scsi_ulto2b(sentry->length, 7416 descr->cdb_length); 7417 } 7418 } else { 7419 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7420 entry)) 7421 continue; 7422 descr = &all->descr[num++]; 7423 descr->opcode = i; 7424 scsi_ulto2b(0, descr->service_action); 7425 descr->flags = 0; 7426 scsi_ulto2b(entry->length, descr->cdb_length); 7427 } 7428 } 7429 scsi_ulto4b( 7430 num * sizeof(struct scsi_report_supported_opcodes_descr), 7431 all->length); 7432 break; 7433 case RSO_OPTIONS_OC: 7434 one = (struct scsi_report_supported_opcodes_one *) 7435 ctsio->kern_data_ptr; 7436 entry = &ctl_cmd_table[opcode]; 7437 goto fill_one; 7438 case RSO_OPTIONS_OC_SA: 7439 one = (struct scsi_report_supported_opcodes_one *) 7440 ctsio->kern_data_ptr; 7441 entry = &ctl_cmd_table[opcode]; 7442 entry = &((const struct ctl_cmd_entry *) 7443 entry->execute)[service_action]; 7444fill_one: 7445 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7446 one->support = 3; 7447 scsi_ulto2b(entry->length, one->cdb_length); 7448 one->cdb_usage[0] = opcode; 7449 memcpy(&one->cdb_usage[1], entry->usage, 7450 entry->length - 1); 7451 } else 7452 one->support = 1; 7453 break; 7454 case RSO_OPTIONS_OC_ASA: 7455 one = (struct scsi_report_supported_opcodes_one *) 7456 ctsio->kern_data_ptr; 7457 entry = &ctl_cmd_table[opcode]; 7458 if (entry->flags & CTL_CMD_FLAG_SA5) { 7459 entry = &((const struct ctl_cmd_entry *) 7460 entry->execute)[service_action]; 7461 } else if (service_action != 0) { 7462 one->support = 1; 7463 break; 7464 } 7465 goto fill_one; 7466 } 7467 7468 ctl_set_success(ctsio); 7469 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7470 ctsio->be_move_done = ctl_config_move_done; 7471 ctl_datamove((union ctl_io *)ctsio); 7472 return(retval); 7473} 7474 7475int 7476ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7477{ 7478 struct scsi_report_supported_tmf *cdb; 7479 struct scsi_report_supported_tmf_ext_data *data; 7480 int retval; 7481 int alloc_len, total_len; 7482 7483 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7484 7485 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7486 7487 retval = CTL_RETVAL_COMPLETE; 7488 7489 if (cdb->options & RST_REPD) 7490 total_len = sizeof(struct scsi_report_supported_tmf_ext_data); 7491 else 7492 total_len = sizeof(struct scsi_report_supported_tmf_data); 7493 alloc_len = scsi_4btoul(cdb->length); 7494 7495 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7496 ctsio->kern_sg_entries = 0; 7497 ctsio->kern_rel_offset = 0; 7498 ctsio->kern_data_len = min(total_len, alloc_len); 7499 ctsio->kern_total_len = ctsio->kern_data_len; 7500 7501 data = (struct scsi_report_supported_tmf_ext_data *)ctsio->kern_data_ptr; 7502 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_QTS | 7503 RST_TRS; 7504 data->byte2 |= RST_QAES | RST_QTSS | RST_ITNRS; 7505 data->length = total_len - 4; 7506 7507 ctl_set_success(ctsio); 7508 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7509 ctsio->be_move_done = ctl_config_move_done; 7510 ctl_datamove((union ctl_io *)ctsio); 7511 return (retval); 7512} 7513 7514int 7515ctl_report_timestamp(struct ctl_scsiio *ctsio) 7516{ 7517 struct scsi_report_timestamp *cdb; 7518 struct scsi_report_timestamp_data *data; 7519 struct timeval tv; 7520 int64_t timestamp; 7521 int retval; 7522 int alloc_len, total_len; 7523 7524 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7525 7526 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7527 7528 retval = CTL_RETVAL_COMPLETE; 7529 7530 total_len = sizeof(struct scsi_report_timestamp_data); 7531 alloc_len = scsi_4btoul(cdb->length); 7532 7533 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7534 ctsio->kern_sg_entries = 0; 7535 ctsio->kern_rel_offset = 0; 7536 ctsio->kern_data_len = min(total_len, alloc_len); 7537 ctsio->kern_total_len = ctsio->kern_data_len; 7538 7539 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7540 scsi_ulto2b(sizeof(*data) - 2, data->length); 7541 data->origin = RTS_ORIG_OUTSIDE; 7542 getmicrotime(&tv); 7543 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7544 scsi_ulto4b(timestamp >> 16, data->timestamp); 7545 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7546 7547 ctl_set_success(ctsio); 7548 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7549 ctsio->be_move_done = ctl_config_move_done; 7550 ctl_datamove((union ctl_io *)ctsio); 7551 return (retval); 7552} 7553 7554int 7555ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7556{ 7557 struct ctl_softc *softc = CTL_SOFTC(ctsio); 7558 struct ctl_lun *lun = CTL_LUN(ctsio); 7559 struct scsi_per_res_in *cdb; 7560 int alloc_len, total_len = 0; 7561 /* struct scsi_per_res_in_rsrv in_data; */ 7562 uint64_t key; 7563 7564 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7565 7566 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7567 7568 alloc_len = scsi_2btoul(cdb->length); 7569 7570retry: 7571 mtx_lock(&lun->lun_lock); 7572 switch (cdb->action) { 7573 case SPRI_RK: /* read keys */ 7574 total_len = sizeof(struct scsi_per_res_in_keys) + 7575 lun->pr_key_count * 7576 sizeof(struct scsi_per_res_key); 7577 break; 7578 case SPRI_RR: /* read reservation */ 7579 if (lun->flags & CTL_LUN_PR_RESERVED) 7580 total_len = sizeof(struct scsi_per_res_in_rsrv); 7581 else 7582 total_len = sizeof(struct scsi_per_res_in_header); 7583 break; 7584 case SPRI_RC: /* report capabilities */ 7585 total_len = sizeof(struct scsi_per_res_cap); 7586 break; 7587 case SPRI_RS: /* read full status */ 7588 total_len = sizeof(struct scsi_per_res_in_header) + 7589 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7590 lun->pr_key_count; 7591 break; 7592 default: 7593 panic("%s: Invalid PR type %#x", __func__, cdb->action); 7594 } 7595 mtx_unlock(&lun->lun_lock); 7596 7597 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7598 ctsio->kern_rel_offset = 0; 7599 ctsio->kern_sg_entries = 0; 7600 ctsio->kern_data_len = min(total_len, alloc_len); 7601 ctsio->kern_total_len = ctsio->kern_data_len; 7602 7603 mtx_lock(&lun->lun_lock); 7604 switch (cdb->action) { 7605 case SPRI_RK: { // read keys 7606 struct scsi_per_res_in_keys *res_keys; 7607 int i, key_count; 7608 7609 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7610 7611 /* 7612 * We had to drop the lock to allocate our buffer, which 7613 * leaves time for someone to come in with another 7614 * persistent reservation. (That is unlikely, though, 7615 * since this should be the only persistent reservation 7616 * command active right now.) 7617 */ 7618 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7619 (lun->pr_key_count * 7620 sizeof(struct scsi_per_res_key)))){ 7621 mtx_unlock(&lun->lun_lock); 7622 free(ctsio->kern_data_ptr, M_CTL); 7623 printf("%s: reservation length changed, retrying\n", 7624 __func__); 7625 goto retry; 7626 } 7627 7628 scsi_ulto4b(lun->pr_generation, res_keys->header.generation); 7629 7630 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7631 lun->pr_key_count, res_keys->header.length); 7632 7633 for (i = 0, key_count = 0; i < CTL_MAX_INITIATORS; i++) { 7634 if ((key = ctl_get_prkey(lun, i)) == 0) 7635 continue; 7636 7637 /* 7638 * We used lun->pr_key_count to calculate the 7639 * size to allocate. If it turns out the number of 7640 * initiators with the registered flag set is 7641 * larger than that (i.e. they haven't been kept in 7642 * sync), we've got a problem. 7643 */ 7644 if (key_count >= lun->pr_key_count) { 7645 key_count++; 7646 continue; 7647 } 7648 scsi_u64to8b(key, res_keys->keys[key_count].key); 7649 key_count++; 7650 } 7651 break; 7652 } 7653 case SPRI_RR: { // read reservation 7654 struct scsi_per_res_in_rsrv *res; 7655 int tmp_len, header_only; 7656 7657 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7658 7659 scsi_ulto4b(lun->pr_generation, res->header.generation); 7660 7661 if (lun->flags & CTL_LUN_PR_RESERVED) 7662 { 7663 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7664 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7665 res->header.length); 7666 header_only = 0; 7667 } else { 7668 tmp_len = sizeof(struct scsi_per_res_in_header); 7669 scsi_ulto4b(0, res->header.length); 7670 header_only = 1; 7671 } 7672 7673 /* 7674 * We had to drop the lock to allocate our buffer, which 7675 * leaves time for someone to come in with another 7676 * persistent reservation. (That is unlikely, though, 7677 * since this should be the only persistent reservation 7678 * command active right now.) 7679 */ 7680 if (tmp_len != total_len) { 7681 mtx_unlock(&lun->lun_lock); 7682 free(ctsio->kern_data_ptr, M_CTL); 7683 printf("%s: reservation status changed, retrying\n", 7684 __func__); 7685 goto retry; 7686 } 7687 7688 /* 7689 * No reservation held, so we're done. 7690 */ 7691 if (header_only != 0) 7692 break; 7693 7694 /* 7695 * If the registration is an All Registrants type, the key 7696 * is 0, since it doesn't really matter. 7697 */ 7698 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7699 scsi_u64to8b(ctl_get_prkey(lun, lun->pr_res_idx), 7700 res->data.reservation); 7701 } 7702 res->data.scopetype = lun->pr_res_type; 7703 break; 7704 } 7705 case SPRI_RC: //report capabilities 7706 { 7707 struct scsi_per_res_cap *res_cap; 7708 uint16_t type_mask; 7709 7710 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7711 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7712 res_cap->flags1 = SPRI_CRH; 7713 res_cap->flags2 = SPRI_TMV | SPRI_ALLOW_5; 7714 type_mask = SPRI_TM_WR_EX_AR | 7715 SPRI_TM_EX_AC_RO | 7716 SPRI_TM_WR_EX_RO | 7717 SPRI_TM_EX_AC | 7718 SPRI_TM_WR_EX | 7719 SPRI_TM_EX_AC_AR; 7720 scsi_ulto2b(type_mask, res_cap->type_mask); 7721 break; 7722 } 7723 case SPRI_RS: { // read full status 7724 struct scsi_per_res_in_full *res_status; 7725 struct scsi_per_res_in_full_desc *res_desc; 7726 struct ctl_port *port; 7727 int i, len; 7728 7729 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7730 7731 /* 7732 * We had to drop the lock to allocate our buffer, which 7733 * leaves time for someone to come in with another 7734 * persistent reservation. (That is unlikely, though, 7735 * since this should be the only persistent reservation 7736 * command active right now.) 7737 */ 7738 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7739 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7740 lun->pr_key_count)){ 7741 mtx_unlock(&lun->lun_lock); 7742 free(ctsio->kern_data_ptr, M_CTL); 7743 printf("%s: reservation length changed, retrying\n", 7744 __func__); 7745 goto retry; 7746 } 7747 7748 scsi_ulto4b(lun->pr_generation, res_status->header.generation); 7749 7750 res_desc = &res_status->desc[0]; 7751 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7752 if ((key = ctl_get_prkey(lun, i)) == 0) 7753 continue; 7754 7755 scsi_u64to8b(key, res_desc->res_key.key); 7756 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7757 (lun->pr_res_idx == i || 7758 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7759 res_desc->flags = SPRI_FULL_R_HOLDER; 7760 res_desc->scopetype = lun->pr_res_type; 7761 } 7762 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7763 res_desc->rel_trgt_port_id); 7764 len = 0; 7765 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT]; 7766 if (port != NULL) 7767 len = ctl_create_iid(port, 7768 i % CTL_MAX_INIT_PER_PORT, 7769 res_desc->transport_id); 7770 scsi_ulto4b(len, res_desc->additional_length); 7771 res_desc = (struct scsi_per_res_in_full_desc *) 7772 &res_desc->transport_id[len]; 7773 } 7774 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7775 res_status->header.length); 7776 break; 7777 } 7778 default: 7779 panic("%s: Invalid PR type %#x", __func__, cdb->action); 7780 } 7781 mtx_unlock(&lun->lun_lock); 7782 7783 ctl_set_success(ctsio); 7784 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7785 ctsio->be_move_done = ctl_config_move_done; 7786 ctl_datamove((union ctl_io *)ctsio); 7787 return (CTL_RETVAL_COMPLETE); 7788} 7789 7790/* 7791 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7792 * it should return. 7793 */ 7794static int 7795ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7796 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7797 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7798 struct scsi_per_res_out_parms* param) 7799{ 7800 union ctl_ha_msg persis_io; 7801 int i; 7802 7803 mtx_lock(&lun->lun_lock); 7804 if (sa_res_key == 0) { 7805 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7806 /* validate scope and type */ 7807 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7808 SPR_LU_SCOPE) { 7809 mtx_unlock(&lun->lun_lock); 7810 ctl_set_invalid_field(/*ctsio*/ ctsio, 7811 /*sks_valid*/ 1, 7812 /*command*/ 1, 7813 /*field*/ 2, 7814 /*bit_valid*/ 1, 7815 /*bit*/ 4); 7816 ctl_done((union ctl_io *)ctsio); 7817 return (1); 7818 } 7819 7820 if (type>8 || type==2 || type==4 || type==0) { 7821 mtx_unlock(&lun->lun_lock); 7822 ctl_set_invalid_field(/*ctsio*/ ctsio, 7823 /*sks_valid*/ 1, 7824 /*command*/ 1, 7825 /*field*/ 2, 7826 /*bit_valid*/ 1, 7827 /*bit*/ 0); 7828 ctl_done((union ctl_io *)ctsio); 7829 return (1); 7830 } 7831 7832 /* 7833 * Unregister everybody else and build UA for 7834 * them 7835 */ 7836 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7837 if (i == residx || ctl_get_prkey(lun, i) == 0) 7838 continue; 7839 7840 ctl_clr_prkey(lun, i); 7841 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7842 } 7843 lun->pr_key_count = 1; 7844 lun->pr_res_type = type; 7845 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 7846 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 7847 lun->pr_res_idx = residx; 7848 lun->pr_generation++; 7849 mtx_unlock(&lun->lun_lock); 7850 7851 /* send msg to other side */ 7852 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7853 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7854 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7855 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7856 persis_io.pr.pr_info.res_type = type; 7857 memcpy(persis_io.pr.pr_info.sa_res_key, 7858 param->serv_act_res_key, 7859 sizeof(param->serv_act_res_key)); 7860 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7861 sizeof(persis_io.pr), M_WAITOK); 7862 } else { 7863 /* not all registrants */ 7864 mtx_unlock(&lun->lun_lock); 7865 free(ctsio->kern_data_ptr, M_CTL); 7866 ctl_set_invalid_field(ctsio, 7867 /*sks_valid*/ 1, 7868 /*command*/ 0, 7869 /*field*/ 8, 7870 /*bit_valid*/ 0, 7871 /*bit*/ 0); 7872 ctl_done((union ctl_io *)ctsio); 7873 return (1); 7874 } 7875 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7876 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 7877 int found = 0; 7878 7879 if (res_key == sa_res_key) { 7880 /* special case */ 7881 /* 7882 * The spec implies this is not good but doesn't 7883 * say what to do. There are two choices either 7884 * generate a res conflict or check condition 7885 * with illegal field in parameter data. Since 7886 * that is what is done when the sa_res_key is 7887 * zero I'll take that approach since this has 7888 * to do with the sa_res_key. 7889 */ 7890 mtx_unlock(&lun->lun_lock); 7891 free(ctsio->kern_data_ptr, M_CTL); 7892 ctl_set_invalid_field(ctsio, 7893 /*sks_valid*/ 1, 7894 /*command*/ 0, 7895 /*field*/ 8, 7896 /*bit_valid*/ 0, 7897 /*bit*/ 0); 7898 ctl_done((union ctl_io *)ctsio); 7899 return (1); 7900 } 7901 7902 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7903 if (ctl_get_prkey(lun, i) != sa_res_key) 7904 continue; 7905 7906 found = 1; 7907 ctl_clr_prkey(lun, i); 7908 lun->pr_key_count--; 7909 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7910 } 7911 if (!found) { 7912 mtx_unlock(&lun->lun_lock); 7913 free(ctsio->kern_data_ptr, M_CTL); 7914 ctl_set_reservation_conflict(ctsio); 7915 ctl_done((union ctl_io *)ctsio); 7916 return (CTL_RETVAL_COMPLETE); 7917 } 7918 lun->pr_generation++; 7919 mtx_unlock(&lun->lun_lock); 7920 7921 /* send msg to other side */ 7922 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7923 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7924 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7925 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7926 persis_io.pr.pr_info.res_type = type; 7927 memcpy(persis_io.pr.pr_info.sa_res_key, 7928 param->serv_act_res_key, 7929 sizeof(param->serv_act_res_key)); 7930 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7931 sizeof(persis_io.pr), M_WAITOK); 7932 } else { 7933 /* Reserved but not all registrants */ 7934 /* sa_res_key is res holder */ 7935 if (sa_res_key == ctl_get_prkey(lun, lun->pr_res_idx)) { 7936 /* validate scope and type */ 7937 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7938 SPR_LU_SCOPE) { 7939 mtx_unlock(&lun->lun_lock); 7940 ctl_set_invalid_field(/*ctsio*/ ctsio, 7941 /*sks_valid*/ 1, 7942 /*command*/ 1, 7943 /*field*/ 2, 7944 /*bit_valid*/ 1, 7945 /*bit*/ 4); 7946 ctl_done((union ctl_io *)ctsio); 7947 return (1); 7948 } 7949 7950 if (type>8 || type==2 || type==4 || type==0) { 7951 mtx_unlock(&lun->lun_lock); 7952 ctl_set_invalid_field(/*ctsio*/ ctsio, 7953 /*sks_valid*/ 1, 7954 /*command*/ 1, 7955 /*field*/ 2, 7956 /*bit_valid*/ 1, 7957 /*bit*/ 0); 7958 ctl_done((union ctl_io *)ctsio); 7959 return (1); 7960 } 7961 7962 /* 7963 * Do the following: 7964 * if sa_res_key != res_key remove all 7965 * registrants w/sa_res_key and generate UA 7966 * for these registrants(Registrations 7967 * Preempted) if it wasn't an exclusive 7968 * reservation generate UA(Reservations 7969 * Preempted) for all other registered nexuses 7970 * if the type has changed. Establish the new 7971 * reservation and holder. If res_key and 7972 * sa_res_key are the same do the above 7973 * except don't unregister the res holder. 7974 */ 7975 7976 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7977 if (i == residx || ctl_get_prkey(lun, i) == 0) 7978 continue; 7979 7980 if (sa_res_key == ctl_get_prkey(lun, i)) { 7981 ctl_clr_prkey(lun, i); 7982 lun->pr_key_count--; 7983 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7984 } else if (type != lun->pr_res_type && 7985 (lun->pr_res_type == SPR_TYPE_WR_EX_RO || 7986 lun->pr_res_type == SPR_TYPE_EX_AC_RO)) { 7987 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 7988 } 7989 } 7990 lun->pr_res_type = type; 7991 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 7992 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 7993 lun->pr_res_idx = residx; 7994 else 7995 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 7996 lun->pr_generation++; 7997 mtx_unlock(&lun->lun_lock); 7998 7999 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8000 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8001 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8002 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8003 persis_io.pr.pr_info.res_type = type; 8004 memcpy(persis_io.pr.pr_info.sa_res_key, 8005 param->serv_act_res_key, 8006 sizeof(param->serv_act_res_key)); 8007 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8008 sizeof(persis_io.pr), M_WAITOK); 8009 } else { 8010 /* 8011 * sa_res_key is not the res holder just 8012 * remove registrants 8013 */ 8014 int found=0; 8015 8016 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8017 if (sa_res_key != ctl_get_prkey(lun, i)) 8018 continue; 8019 8020 found = 1; 8021 ctl_clr_prkey(lun, i); 8022 lun->pr_key_count--; 8023 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8024 } 8025 8026 if (!found) { 8027 mtx_unlock(&lun->lun_lock); 8028 free(ctsio->kern_data_ptr, M_CTL); 8029 ctl_set_reservation_conflict(ctsio); 8030 ctl_done((union ctl_io *)ctsio); 8031 return (1); 8032 } 8033 lun->pr_generation++; 8034 mtx_unlock(&lun->lun_lock); 8035 8036 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8037 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8038 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8039 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8040 persis_io.pr.pr_info.res_type = type; 8041 memcpy(persis_io.pr.pr_info.sa_res_key, 8042 param->serv_act_res_key, 8043 sizeof(param->serv_act_res_key)); 8044 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8045 sizeof(persis_io.pr), M_WAITOK); 8046 } 8047 } 8048 return (0); 8049} 8050 8051static void 8052ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8053{ 8054 uint64_t sa_res_key; 8055 int i; 8056 8057 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8058 8059 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8060 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8061 || sa_res_key != ctl_get_prkey(lun, lun->pr_res_idx)) { 8062 if (sa_res_key == 0) { 8063 /* 8064 * Unregister everybody else and build UA for 8065 * them 8066 */ 8067 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 8068 if (i == msg->pr.pr_info.residx || 8069 ctl_get_prkey(lun, i) == 0) 8070 continue; 8071 8072 ctl_clr_prkey(lun, i); 8073 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8074 } 8075 8076 lun->pr_key_count = 1; 8077 lun->pr_res_type = msg->pr.pr_info.res_type; 8078 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8079 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8080 lun->pr_res_idx = msg->pr.pr_info.residx; 8081 } else { 8082 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8083 if (sa_res_key == ctl_get_prkey(lun, i)) 8084 continue; 8085 8086 ctl_clr_prkey(lun, i); 8087 lun->pr_key_count--; 8088 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8089 } 8090 } 8091 } else { 8092 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8093 if (i == msg->pr.pr_info.residx || 8094 ctl_get_prkey(lun, i) == 0) 8095 continue; 8096 8097 if (sa_res_key == ctl_get_prkey(lun, i)) { 8098 ctl_clr_prkey(lun, i); 8099 lun->pr_key_count--; 8100 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8101 } else if (msg->pr.pr_info.res_type != lun->pr_res_type 8102 && (lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8103 lun->pr_res_type == SPR_TYPE_EX_AC_RO)) { 8104 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8105 } 8106 } 8107 lun->pr_res_type = msg->pr.pr_info.res_type; 8108 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8109 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8110 lun->pr_res_idx = msg->pr.pr_info.residx; 8111 else 8112 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8113 } 8114 lun->pr_generation++; 8115 8116} 8117 8118 8119int 8120ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8121{ 8122 struct ctl_softc *softc = CTL_SOFTC(ctsio); 8123 struct ctl_lun *lun = CTL_LUN(ctsio); 8124 int retval; 8125 u_int32_t param_len; 8126 struct scsi_per_res_out *cdb; 8127 struct scsi_per_res_out_parms* param; 8128 uint32_t residx; 8129 uint64_t res_key, sa_res_key, key; 8130 uint8_t type; 8131 union ctl_ha_msg persis_io; 8132 int i; 8133 8134 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8135 8136 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8137 retval = CTL_RETVAL_COMPLETE; 8138 8139 /* 8140 * We only support whole-LUN scope. The scope & type are ignored for 8141 * register, register and ignore existing key and clear. 8142 * We sometimes ignore scope and type on preempts too!! 8143 * Verify reservation type here as well. 8144 */ 8145 type = cdb->scope_type & SPR_TYPE_MASK; 8146 if ((cdb->action == SPRO_RESERVE) 8147 || (cdb->action == SPRO_RELEASE)) { 8148 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8149 ctl_set_invalid_field(/*ctsio*/ ctsio, 8150 /*sks_valid*/ 1, 8151 /*command*/ 1, 8152 /*field*/ 2, 8153 /*bit_valid*/ 1, 8154 /*bit*/ 4); 8155 ctl_done((union ctl_io *)ctsio); 8156 return (CTL_RETVAL_COMPLETE); 8157 } 8158 8159 if (type>8 || type==2 || type==4 || type==0) { 8160 ctl_set_invalid_field(/*ctsio*/ ctsio, 8161 /*sks_valid*/ 1, 8162 /*command*/ 1, 8163 /*field*/ 2, 8164 /*bit_valid*/ 1, 8165 /*bit*/ 0); 8166 ctl_done((union ctl_io *)ctsio); 8167 return (CTL_RETVAL_COMPLETE); 8168 } 8169 } 8170 8171 param_len = scsi_4btoul(cdb->length); 8172 8173 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8174 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8175 ctsio->kern_data_len = param_len; 8176 ctsio->kern_total_len = param_len; 8177 ctsio->kern_rel_offset = 0; 8178 ctsio->kern_sg_entries = 0; 8179 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8180 ctsio->be_move_done = ctl_config_move_done; 8181 ctl_datamove((union ctl_io *)ctsio); 8182 8183 return (CTL_RETVAL_COMPLETE); 8184 } 8185 8186 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8187 8188 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 8189 res_key = scsi_8btou64(param->res_key.key); 8190 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8191 8192 /* 8193 * Validate the reservation key here except for SPRO_REG_IGNO 8194 * This must be done for all other service actions 8195 */ 8196 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8197 mtx_lock(&lun->lun_lock); 8198 if ((key = ctl_get_prkey(lun, residx)) != 0) { 8199 if (res_key != key) { 8200 /* 8201 * The current key passed in doesn't match 8202 * the one the initiator previously 8203 * registered. 8204 */ 8205 mtx_unlock(&lun->lun_lock); 8206 free(ctsio->kern_data_ptr, M_CTL); 8207 ctl_set_reservation_conflict(ctsio); 8208 ctl_done((union ctl_io *)ctsio); 8209 return (CTL_RETVAL_COMPLETE); 8210 } 8211 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8212 /* 8213 * We are not registered 8214 */ 8215 mtx_unlock(&lun->lun_lock); 8216 free(ctsio->kern_data_ptr, M_CTL); 8217 ctl_set_reservation_conflict(ctsio); 8218 ctl_done((union ctl_io *)ctsio); 8219 return (CTL_RETVAL_COMPLETE); 8220 } else if (res_key != 0) { 8221 /* 8222 * We are not registered and trying to register but 8223 * the register key isn't zero. 8224 */ 8225 mtx_unlock(&lun->lun_lock); 8226 free(ctsio->kern_data_ptr, M_CTL); 8227 ctl_set_reservation_conflict(ctsio); 8228 ctl_done((union ctl_io *)ctsio); 8229 return (CTL_RETVAL_COMPLETE); 8230 } 8231 mtx_unlock(&lun->lun_lock); 8232 } 8233 8234 switch (cdb->action & SPRO_ACTION_MASK) { 8235 case SPRO_REGISTER: 8236 case SPRO_REG_IGNO: { 8237 8238 /* 8239 * We don't support any of these options, as we report in 8240 * the read capabilities request (see 8241 * ctl_persistent_reserve_in(), above). 8242 */ 8243 if ((param->flags & SPR_SPEC_I_PT) 8244 || (param->flags & SPR_ALL_TG_PT) 8245 || (param->flags & SPR_APTPL)) { 8246 int bit_ptr; 8247 8248 if (param->flags & SPR_APTPL) 8249 bit_ptr = 0; 8250 else if (param->flags & SPR_ALL_TG_PT) 8251 bit_ptr = 2; 8252 else /* SPR_SPEC_I_PT */ 8253 bit_ptr = 3; 8254 8255 free(ctsio->kern_data_ptr, M_CTL); 8256 ctl_set_invalid_field(ctsio, 8257 /*sks_valid*/ 1, 8258 /*command*/ 0, 8259 /*field*/ 20, 8260 /*bit_valid*/ 1, 8261 /*bit*/ bit_ptr); 8262 ctl_done((union ctl_io *)ctsio); 8263 return (CTL_RETVAL_COMPLETE); 8264 } 8265 8266 mtx_lock(&lun->lun_lock); 8267 8268 /* 8269 * The initiator wants to clear the 8270 * key/unregister. 8271 */ 8272 if (sa_res_key == 0) { 8273 if ((res_key == 0 8274 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8275 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8276 && ctl_get_prkey(lun, residx) == 0)) { 8277 mtx_unlock(&lun->lun_lock); 8278 goto done; 8279 } 8280 8281 ctl_clr_prkey(lun, residx); 8282 lun->pr_key_count--; 8283 8284 if (residx == lun->pr_res_idx) { 8285 lun->flags &= ~CTL_LUN_PR_RESERVED; 8286 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8287 8288 if ((lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8289 lun->pr_res_type == SPR_TYPE_EX_AC_RO) && 8290 lun->pr_key_count) { 8291 /* 8292 * If the reservation is a registrants 8293 * only type we need to generate a UA 8294 * for other registered inits. The 8295 * sense code should be RESERVATIONS 8296 * RELEASED 8297 */ 8298 8299 for (i = softc->init_min; i < softc->init_max; i++){ 8300 if (ctl_get_prkey(lun, i) == 0) 8301 continue; 8302 ctl_est_ua(lun, i, 8303 CTL_UA_RES_RELEASE); 8304 } 8305 } 8306 lun->pr_res_type = 0; 8307 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8308 if (lun->pr_key_count==0) { 8309 lun->flags &= ~CTL_LUN_PR_RESERVED; 8310 lun->pr_res_type = 0; 8311 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8312 } 8313 } 8314 lun->pr_generation++; 8315 mtx_unlock(&lun->lun_lock); 8316 8317 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8318 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8319 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8320 persis_io.pr.pr_info.residx = residx; 8321 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8322 sizeof(persis_io.pr), M_WAITOK); 8323 } else /* sa_res_key != 0 */ { 8324 8325 /* 8326 * If we aren't registered currently then increment 8327 * the key count and set the registered flag. 8328 */ 8329 ctl_alloc_prkey(lun, residx); 8330 if (ctl_get_prkey(lun, residx) == 0) 8331 lun->pr_key_count++; 8332 ctl_set_prkey(lun, residx, sa_res_key); 8333 lun->pr_generation++; 8334 mtx_unlock(&lun->lun_lock); 8335 8336 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8337 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8338 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8339 persis_io.pr.pr_info.residx = residx; 8340 memcpy(persis_io.pr.pr_info.sa_res_key, 8341 param->serv_act_res_key, 8342 sizeof(param->serv_act_res_key)); 8343 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8344 sizeof(persis_io.pr), M_WAITOK); 8345 } 8346 8347 break; 8348 } 8349 case SPRO_RESERVE: 8350 mtx_lock(&lun->lun_lock); 8351 if (lun->flags & CTL_LUN_PR_RESERVED) { 8352 /* 8353 * if this isn't the reservation holder and it's 8354 * not a "all registrants" type or if the type is 8355 * different then we have a conflict 8356 */ 8357 if ((lun->pr_res_idx != residx 8358 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8359 || lun->pr_res_type != type) { 8360 mtx_unlock(&lun->lun_lock); 8361 free(ctsio->kern_data_ptr, M_CTL); 8362 ctl_set_reservation_conflict(ctsio); 8363 ctl_done((union ctl_io *)ctsio); 8364 return (CTL_RETVAL_COMPLETE); 8365 } 8366 mtx_unlock(&lun->lun_lock); 8367 } else /* create a reservation */ { 8368 /* 8369 * If it's not an "all registrants" type record 8370 * reservation holder 8371 */ 8372 if (type != SPR_TYPE_WR_EX_AR 8373 && type != SPR_TYPE_EX_AC_AR) 8374 lun->pr_res_idx = residx; /* Res holder */ 8375 else 8376 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8377 8378 lun->flags |= CTL_LUN_PR_RESERVED; 8379 lun->pr_res_type = type; 8380 8381 mtx_unlock(&lun->lun_lock); 8382 8383 /* send msg to other side */ 8384 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8385 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8386 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8387 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8388 persis_io.pr.pr_info.res_type = type; 8389 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8390 sizeof(persis_io.pr), M_WAITOK); 8391 } 8392 break; 8393 8394 case SPRO_RELEASE: 8395 mtx_lock(&lun->lun_lock); 8396 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8397 /* No reservation exists return good status */ 8398 mtx_unlock(&lun->lun_lock); 8399 goto done; 8400 } 8401 /* 8402 * Is this nexus a reservation holder? 8403 */ 8404 if (lun->pr_res_idx != residx 8405 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8406 /* 8407 * not a res holder return good status but 8408 * do nothing 8409 */ 8410 mtx_unlock(&lun->lun_lock); 8411 goto done; 8412 } 8413 8414 if (lun->pr_res_type != type) { 8415 mtx_unlock(&lun->lun_lock); 8416 free(ctsio->kern_data_ptr, M_CTL); 8417 ctl_set_illegal_pr_release(ctsio); 8418 ctl_done((union ctl_io *)ctsio); 8419 return (CTL_RETVAL_COMPLETE); 8420 } 8421 8422 /* okay to release */ 8423 lun->flags &= ~CTL_LUN_PR_RESERVED; 8424 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8425 lun->pr_res_type = 0; 8426 8427 /* 8428 * If this isn't an exclusive access reservation and NUAR 8429 * is not set, generate UA for all other registrants. 8430 */ 8431 if (type != SPR_TYPE_EX_AC && type != SPR_TYPE_WR_EX && 8432 (lun->MODE_CTRL.queue_flags & SCP_NUAR) == 0) { 8433 for (i = softc->init_min; i < softc->init_max; i++) { 8434 if (i == residx || ctl_get_prkey(lun, i) == 0) 8435 continue; 8436 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8437 } 8438 } 8439 mtx_unlock(&lun->lun_lock); 8440 8441 /* Send msg to other side */ 8442 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8443 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8444 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8445 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8446 sizeof(persis_io.pr), M_WAITOK); 8447 break; 8448 8449 case SPRO_CLEAR: 8450 /* send msg to other side */ 8451 8452 mtx_lock(&lun->lun_lock); 8453 lun->flags &= ~CTL_LUN_PR_RESERVED; 8454 lun->pr_res_type = 0; 8455 lun->pr_key_count = 0; 8456 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8457 8458 ctl_clr_prkey(lun, residx); 8459 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8460 if (ctl_get_prkey(lun, i) != 0) { 8461 ctl_clr_prkey(lun, i); 8462 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8463 } 8464 lun->pr_generation++; 8465 mtx_unlock(&lun->lun_lock); 8466 8467 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8468 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8469 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8470 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8471 sizeof(persis_io.pr), M_WAITOK); 8472 break; 8473 8474 case SPRO_PREEMPT: 8475 case SPRO_PRE_ABO: { 8476 int nretval; 8477 8478 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8479 residx, ctsio, cdb, param); 8480 if (nretval != 0) 8481 return (CTL_RETVAL_COMPLETE); 8482 break; 8483 } 8484 default: 8485 panic("%s: Invalid PR type %#x", __func__, cdb->action); 8486 } 8487 8488done: 8489 free(ctsio->kern_data_ptr, M_CTL); 8490 ctl_set_success(ctsio); 8491 ctl_done((union ctl_io *)ctsio); 8492 8493 return (retval); 8494} 8495 8496/* 8497 * This routine is for handling a message from the other SC pertaining to 8498 * persistent reserve out. All the error checking will have been done 8499 * so only perorming the action need be done here to keep the two 8500 * in sync. 8501 */ 8502static void 8503ctl_hndl_per_res_out_on_other_sc(union ctl_io *io) 8504{ 8505 struct ctl_softc *softc = CTL_SOFTC(io); 8506 union ctl_ha_msg *msg = (union ctl_ha_msg *)&io->presio.pr_msg; 8507 struct ctl_lun *lun; 8508 int i; 8509 uint32_t residx, targ_lun; 8510 8511 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8512 mtx_lock(&softc->ctl_lock); 8513 if (targ_lun >= ctl_max_luns || 8514 (lun = softc->ctl_luns[targ_lun]) == NULL) { 8515 mtx_unlock(&softc->ctl_lock); 8516 return; 8517 } 8518 mtx_lock(&lun->lun_lock); 8519 mtx_unlock(&softc->ctl_lock); 8520 if (lun->flags & CTL_LUN_DISABLED) { 8521 mtx_unlock(&lun->lun_lock); 8522 return; 8523 } 8524 residx = ctl_get_initindex(&msg->hdr.nexus); 8525 switch(msg->pr.pr_info.action) { 8526 case CTL_PR_REG_KEY: 8527 ctl_alloc_prkey(lun, msg->pr.pr_info.residx); 8528 if (ctl_get_prkey(lun, msg->pr.pr_info.residx) == 0) 8529 lun->pr_key_count++; 8530 ctl_set_prkey(lun, msg->pr.pr_info.residx, 8531 scsi_8btou64(msg->pr.pr_info.sa_res_key)); 8532 lun->pr_generation++; 8533 break; 8534 8535 case CTL_PR_UNREG_KEY: 8536 ctl_clr_prkey(lun, msg->pr.pr_info.residx); 8537 lun->pr_key_count--; 8538 8539 /* XXX Need to see if the reservation has been released */ 8540 /* if so do we need to generate UA? */ 8541 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8542 lun->flags &= ~CTL_LUN_PR_RESERVED; 8543 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8544 8545 if ((lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8546 lun->pr_res_type == SPR_TYPE_EX_AC_RO) && 8547 lun->pr_key_count) { 8548 /* 8549 * If the reservation is a registrants 8550 * only type we need to generate a UA 8551 * for other registered inits. The 8552 * sense code should be RESERVATIONS 8553 * RELEASED 8554 */ 8555 8556 for (i = softc->init_min; i < softc->init_max; i++) { 8557 if (ctl_get_prkey(lun, i) == 0) 8558 continue; 8559 8560 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8561 } 8562 } 8563 lun->pr_res_type = 0; 8564 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8565 if (lun->pr_key_count==0) { 8566 lun->flags &= ~CTL_LUN_PR_RESERVED; 8567 lun->pr_res_type = 0; 8568 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8569 } 8570 } 8571 lun->pr_generation++; 8572 break; 8573 8574 case CTL_PR_RESERVE: 8575 lun->flags |= CTL_LUN_PR_RESERVED; 8576 lun->pr_res_type = msg->pr.pr_info.res_type; 8577 lun->pr_res_idx = msg->pr.pr_info.residx; 8578 8579 break; 8580 8581 case CTL_PR_RELEASE: 8582 /* 8583 * If this isn't an exclusive access reservation and NUAR 8584 * is not set, generate UA for all other registrants. 8585 */ 8586 if (lun->pr_res_type != SPR_TYPE_EX_AC && 8587 lun->pr_res_type != SPR_TYPE_WR_EX && 8588 (lun->MODE_CTRL.queue_flags & SCP_NUAR) == 0) { 8589 for (i = softc->init_min; i < softc->init_max; i++) 8590 if (i == residx || ctl_get_prkey(lun, i) == 0) 8591 continue; 8592 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8593 } 8594 8595 lun->flags &= ~CTL_LUN_PR_RESERVED; 8596 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8597 lun->pr_res_type = 0; 8598 break; 8599 8600 case CTL_PR_PREEMPT: 8601 ctl_pro_preempt_other(lun, msg); 8602 break; 8603 case CTL_PR_CLEAR: 8604 lun->flags &= ~CTL_LUN_PR_RESERVED; 8605 lun->pr_res_type = 0; 8606 lun->pr_key_count = 0; 8607 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8608 8609 for (i=0; i < CTL_MAX_INITIATORS; i++) { 8610 if (ctl_get_prkey(lun, i) == 0) 8611 continue; 8612 ctl_clr_prkey(lun, i); 8613 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8614 } 8615 lun->pr_generation++; 8616 break; 8617 } 8618 8619 mtx_unlock(&lun->lun_lock); 8620} 8621 8622int 8623ctl_read_write(struct ctl_scsiio *ctsio) 8624{ 8625 struct ctl_lun *lun = CTL_LUN(ctsio); 8626 struct ctl_lba_len_flags *lbalen; 8627 uint64_t lba; 8628 uint32_t num_blocks; 8629 int flags, retval; 8630 int isread; 8631 8632 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8633 8634 flags = 0; 8635 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8636 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8637 switch (ctsio->cdb[0]) { 8638 case READ_6: 8639 case WRITE_6: { 8640 struct scsi_rw_6 *cdb; 8641 8642 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8643 8644 lba = scsi_3btoul(cdb->addr); 8645 /* only 5 bits are valid in the most significant address byte */ 8646 lba &= 0x1fffff; 8647 num_blocks = cdb->length; 8648 /* 8649 * This is correct according to SBC-2. 8650 */ 8651 if (num_blocks == 0) 8652 num_blocks = 256; 8653 break; 8654 } 8655 case READ_10: 8656 case WRITE_10: { 8657 struct scsi_rw_10 *cdb; 8658 8659 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8660 if (cdb->byte2 & SRW10_FUA) 8661 flags |= CTL_LLF_FUA; 8662 if (cdb->byte2 & SRW10_DPO) 8663 flags |= CTL_LLF_DPO; 8664 lba = scsi_4btoul(cdb->addr); 8665 num_blocks = scsi_2btoul(cdb->length); 8666 break; 8667 } 8668 case WRITE_VERIFY_10: { 8669 struct scsi_write_verify_10 *cdb; 8670 8671 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8672 flags |= CTL_LLF_FUA; 8673 if (cdb->byte2 & SWV_DPO) 8674 flags |= CTL_LLF_DPO; 8675 lba = scsi_4btoul(cdb->addr); 8676 num_blocks = scsi_2btoul(cdb->length); 8677 break; 8678 } 8679 case READ_12: 8680 case WRITE_12: { 8681 struct scsi_rw_12 *cdb; 8682 8683 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8684 if (cdb->byte2 & SRW12_FUA) 8685 flags |= CTL_LLF_FUA; 8686 if (cdb->byte2 & SRW12_DPO) 8687 flags |= CTL_LLF_DPO; 8688 lba = scsi_4btoul(cdb->addr); 8689 num_blocks = scsi_4btoul(cdb->length); 8690 break; 8691 } 8692 case WRITE_VERIFY_12: { 8693 struct scsi_write_verify_12 *cdb; 8694 8695 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8696 flags |= CTL_LLF_FUA; 8697 if (cdb->byte2 & SWV_DPO) 8698 flags |= CTL_LLF_DPO; 8699 lba = scsi_4btoul(cdb->addr); 8700 num_blocks = scsi_4btoul(cdb->length); 8701 break; 8702 } 8703 case READ_16: 8704 case WRITE_16: { 8705 struct scsi_rw_16 *cdb; 8706 8707 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8708 if (cdb->byte2 & SRW12_FUA) 8709 flags |= CTL_LLF_FUA; 8710 if (cdb->byte2 & SRW12_DPO) 8711 flags |= CTL_LLF_DPO; 8712 lba = scsi_8btou64(cdb->addr); 8713 num_blocks = scsi_4btoul(cdb->length); 8714 break; 8715 } 8716 case WRITE_ATOMIC_16: { 8717 struct scsi_write_atomic_16 *cdb; 8718 8719 if (lun->be_lun->atomicblock == 0) { 8720 ctl_set_invalid_opcode(ctsio); 8721 ctl_done((union ctl_io *)ctsio); 8722 return (CTL_RETVAL_COMPLETE); 8723 } 8724 8725 cdb = (struct scsi_write_atomic_16 *)ctsio->cdb; 8726 if (cdb->byte2 & SRW12_FUA) 8727 flags |= CTL_LLF_FUA; 8728 if (cdb->byte2 & SRW12_DPO) 8729 flags |= CTL_LLF_DPO; 8730 lba = scsi_8btou64(cdb->addr); 8731 num_blocks = scsi_2btoul(cdb->length); 8732 if (num_blocks > lun->be_lun->atomicblock) { 8733 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8734 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8735 /*bit*/ 0); 8736 ctl_done((union ctl_io *)ctsio); 8737 return (CTL_RETVAL_COMPLETE); 8738 } 8739 break; 8740 } 8741 case WRITE_VERIFY_16: { 8742 struct scsi_write_verify_16 *cdb; 8743 8744 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8745 flags |= CTL_LLF_FUA; 8746 if (cdb->byte2 & SWV_DPO) 8747 flags |= CTL_LLF_DPO; 8748 lba = scsi_8btou64(cdb->addr); 8749 num_blocks = scsi_4btoul(cdb->length); 8750 break; 8751 } 8752 default: 8753 /* 8754 * We got a command we don't support. This shouldn't 8755 * happen, commands should be filtered out above us. 8756 */ 8757 ctl_set_invalid_opcode(ctsio); 8758 ctl_done((union ctl_io *)ctsio); 8759 8760 return (CTL_RETVAL_COMPLETE); 8761 break; /* NOTREACHED */ 8762 } 8763 8764 /* 8765 * The first check is to make sure we're in bounds, the second 8766 * check is to catch wrap-around problems. If the lba + num blocks 8767 * is less than the lba, then we've wrapped around and the block 8768 * range is invalid anyway. 8769 */ 8770 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8771 || ((lba + num_blocks) < lba)) { 8772 ctl_set_lba_out_of_range(ctsio, 8773 MAX(lba, lun->be_lun->maxlba + 1)); 8774 ctl_done((union ctl_io *)ctsio); 8775 return (CTL_RETVAL_COMPLETE); 8776 } 8777 8778 /* 8779 * According to SBC-3, a transfer length of 0 is not an error. 8780 * Note that this cannot happen with WRITE(6) or READ(6), since 0 8781 * translates to 256 blocks for those commands. 8782 */ 8783 if (num_blocks == 0) { 8784 ctl_set_success(ctsio); 8785 ctl_done((union ctl_io *)ctsio); 8786 return (CTL_RETVAL_COMPLETE); 8787 } 8788 8789 /* Set FUA and/or DPO if caches are disabled. */ 8790 if (isread) { 8791 if ((lun->MODE_CACHING.flags1 & SCP_RCD) != 0) 8792 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 8793 } else { 8794 if ((lun->MODE_CACHING.flags1 & SCP_WCE) == 0) 8795 flags |= CTL_LLF_FUA; 8796 } 8797 8798 lbalen = (struct ctl_lba_len_flags *) 8799 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8800 lbalen->lba = lba; 8801 lbalen->len = num_blocks; 8802 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 8803 8804 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8805 ctsio->kern_rel_offset = 0; 8806 8807 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 8808 8809 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8810 return (retval); 8811} 8812 8813static int 8814ctl_cnw_cont(union ctl_io *io) 8815{ 8816 struct ctl_lun *lun = CTL_LUN(io); 8817 struct ctl_scsiio *ctsio; 8818 struct ctl_lba_len_flags *lbalen; 8819 int retval; 8820 8821 ctsio = &io->scsiio; 8822 ctsio->io_hdr.status = CTL_STATUS_NONE; 8823 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 8824 lbalen = (struct ctl_lba_len_flags *) 8825 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8826 lbalen->flags &= ~CTL_LLF_COMPARE; 8827 lbalen->flags |= CTL_LLF_WRITE; 8828 8829 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 8830 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8831 return (retval); 8832} 8833 8834int 8835ctl_cnw(struct ctl_scsiio *ctsio) 8836{ 8837 struct ctl_lun *lun = CTL_LUN(ctsio); 8838 struct ctl_lba_len_flags *lbalen; 8839 uint64_t lba; 8840 uint32_t num_blocks; 8841 int flags, retval; 8842 8843 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 8844 8845 flags = 0; 8846 switch (ctsio->cdb[0]) { 8847 case COMPARE_AND_WRITE: { 8848 struct scsi_compare_and_write *cdb; 8849 8850 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 8851 if (cdb->byte2 & SRW10_FUA) 8852 flags |= CTL_LLF_FUA; 8853 if (cdb->byte2 & SRW10_DPO) 8854 flags |= CTL_LLF_DPO; 8855 lba = scsi_8btou64(cdb->addr); 8856 num_blocks = cdb->length; 8857 break; 8858 } 8859 default: 8860 /* 8861 * We got a command we don't support. This shouldn't 8862 * happen, commands should be filtered out above us. 8863 */ 8864 ctl_set_invalid_opcode(ctsio); 8865 ctl_done((union ctl_io *)ctsio); 8866 8867 return (CTL_RETVAL_COMPLETE); 8868 break; /* NOTREACHED */ 8869 } 8870 8871 /* 8872 * The first check is to make sure we're in bounds, the second 8873 * check is to catch wrap-around problems. If the lba + num blocks 8874 * is less than the lba, then we've wrapped around and the block 8875 * range is invalid anyway. 8876 */ 8877 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8878 || ((lba + num_blocks) < lba)) { 8879 ctl_set_lba_out_of_range(ctsio, 8880 MAX(lba, lun->be_lun->maxlba + 1)); 8881 ctl_done((union ctl_io *)ctsio); 8882 return (CTL_RETVAL_COMPLETE); 8883 } 8884 8885 /* 8886 * According to SBC-3, a transfer length of 0 is not an error. 8887 */ 8888 if (num_blocks == 0) { 8889 ctl_set_success(ctsio); 8890 ctl_done((union ctl_io *)ctsio); 8891 return (CTL_RETVAL_COMPLETE); 8892 } 8893 8894 /* Set FUA if write cache is disabled. */ 8895 if ((lun->MODE_CACHING.flags1 & SCP_WCE) == 0) 8896 flags |= CTL_LLF_FUA; 8897 8898 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 8899 ctsio->kern_rel_offset = 0; 8900 8901 /* 8902 * Set the IO_CONT flag, so that if this I/O gets passed to 8903 * ctl_data_submit_done(), it'll get passed back to 8904 * ctl_ctl_cnw_cont() for further processing. 8905 */ 8906 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 8907 ctsio->io_cont = ctl_cnw_cont; 8908 8909 lbalen = (struct ctl_lba_len_flags *) 8910 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8911 lbalen->lba = lba; 8912 lbalen->len = num_blocks; 8913 lbalen->flags = CTL_LLF_COMPARE | flags; 8914 8915 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 8916 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8917 return (retval); 8918} 8919 8920int 8921ctl_verify(struct ctl_scsiio *ctsio) 8922{ 8923 struct ctl_lun *lun = CTL_LUN(ctsio); 8924 struct ctl_lba_len_flags *lbalen; 8925 uint64_t lba; 8926 uint32_t num_blocks; 8927 int bytchk, flags; 8928 int retval; 8929 8930 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 8931 8932 bytchk = 0; 8933 flags = CTL_LLF_FUA; 8934 switch (ctsio->cdb[0]) { 8935 case VERIFY_10: { 8936 struct scsi_verify_10 *cdb; 8937 8938 cdb = (struct scsi_verify_10 *)ctsio->cdb; 8939 if (cdb->byte2 & SVFY_BYTCHK) 8940 bytchk = 1; 8941 if (cdb->byte2 & SVFY_DPO) 8942 flags |= CTL_LLF_DPO; 8943 lba = scsi_4btoul(cdb->addr); 8944 num_blocks = scsi_2btoul(cdb->length); 8945 break; 8946 } 8947 case VERIFY_12: { 8948 struct scsi_verify_12 *cdb; 8949 8950 cdb = (struct scsi_verify_12 *)ctsio->cdb; 8951 if (cdb->byte2 & SVFY_BYTCHK) 8952 bytchk = 1; 8953 if (cdb->byte2 & SVFY_DPO) 8954 flags |= CTL_LLF_DPO; 8955 lba = scsi_4btoul(cdb->addr); 8956 num_blocks = scsi_4btoul(cdb->length); 8957 break; 8958 } 8959 case VERIFY_16: { 8960 struct scsi_rw_16 *cdb; 8961 8962 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8963 if (cdb->byte2 & SVFY_BYTCHK) 8964 bytchk = 1; 8965 if (cdb->byte2 & SVFY_DPO) 8966 flags |= CTL_LLF_DPO; 8967 lba = scsi_8btou64(cdb->addr); 8968 num_blocks = scsi_4btoul(cdb->length); 8969 break; 8970 } 8971 default: 8972 /* 8973 * We got a command we don't support. This shouldn't 8974 * happen, commands should be filtered out above us. 8975 */ 8976 ctl_set_invalid_opcode(ctsio); 8977 ctl_done((union ctl_io *)ctsio); 8978 return (CTL_RETVAL_COMPLETE); 8979 } 8980 8981 /* 8982 * The first check is to make sure we're in bounds, the second 8983 * check is to catch wrap-around problems. If the lba + num blocks 8984 * is less than the lba, then we've wrapped around and the block 8985 * range is invalid anyway. 8986 */ 8987 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8988 || ((lba + num_blocks) < lba)) { 8989 ctl_set_lba_out_of_range(ctsio, 8990 MAX(lba, lun->be_lun->maxlba + 1)); 8991 ctl_done((union ctl_io *)ctsio); 8992 return (CTL_RETVAL_COMPLETE); 8993 } 8994 8995 /* 8996 * According to SBC-3, a transfer length of 0 is not an error. 8997 */ 8998 if (num_blocks == 0) { 8999 ctl_set_success(ctsio); 9000 ctl_done((union ctl_io *)ctsio); 9001 return (CTL_RETVAL_COMPLETE); 9002 } 9003 9004 lbalen = (struct ctl_lba_len_flags *) 9005 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9006 lbalen->lba = lba; 9007 lbalen->len = num_blocks; 9008 if (bytchk) { 9009 lbalen->flags = CTL_LLF_COMPARE | flags; 9010 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9011 } else { 9012 lbalen->flags = CTL_LLF_VERIFY | flags; 9013 ctsio->kern_total_len = 0; 9014 } 9015 ctsio->kern_rel_offset = 0; 9016 9017 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9018 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9019 return (retval); 9020} 9021 9022int 9023ctl_report_luns(struct ctl_scsiio *ctsio) 9024{ 9025 struct ctl_softc *softc = CTL_SOFTC(ctsio); 9026 struct ctl_port *port = CTL_PORT(ctsio); 9027 struct ctl_lun *lun, *request_lun = CTL_LUN(ctsio); 9028 struct scsi_report_luns *cdb; 9029 struct scsi_report_luns_data *lun_data; 9030 int num_filled, num_luns, num_port_luns, retval; 9031 uint32_t alloc_len, lun_datalen; 9032 uint32_t initidx, targ_lun_id, lun_id; 9033 9034 retval = CTL_RETVAL_COMPLETE; 9035 cdb = (struct scsi_report_luns *)ctsio->cdb; 9036 9037 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9038 9039 num_luns = 0; 9040 num_port_luns = port->lun_map ? port->lun_map_size : ctl_max_luns; 9041 mtx_lock(&softc->ctl_lock); 9042 for (targ_lun_id = 0; targ_lun_id < num_port_luns; targ_lun_id++) { 9043 if (ctl_lun_map_from_port(port, targ_lun_id) != UINT32_MAX) 9044 num_luns++; 9045 } 9046 mtx_unlock(&softc->ctl_lock); 9047 9048 switch (cdb->select_report) { 9049 case RPL_REPORT_DEFAULT: 9050 case RPL_REPORT_ALL: 9051 case RPL_REPORT_NONSUBSID: 9052 break; 9053 case RPL_REPORT_WELLKNOWN: 9054 case RPL_REPORT_ADMIN: 9055 case RPL_REPORT_CONGLOM: 9056 num_luns = 0; 9057 break; 9058 default: 9059 ctl_set_invalid_field(ctsio, 9060 /*sks_valid*/ 1, 9061 /*command*/ 1, 9062 /*field*/ 2, 9063 /*bit_valid*/ 0, 9064 /*bit*/ 0); 9065 ctl_done((union ctl_io *)ctsio); 9066 return (retval); 9067 break; /* NOTREACHED */ 9068 } 9069 9070 alloc_len = scsi_4btoul(cdb->length); 9071 /* 9072 * The initiator has to allocate at least 16 bytes for this request, 9073 * so he can at least get the header and the first LUN. Otherwise 9074 * we reject the request (per SPC-3 rev 14, section 6.21). 9075 */ 9076 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9077 sizeof(struct scsi_report_luns_lundata))) { 9078 ctl_set_invalid_field(ctsio, 9079 /*sks_valid*/ 1, 9080 /*command*/ 1, 9081 /*field*/ 6, 9082 /*bit_valid*/ 0, 9083 /*bit*/ 0); 9084 ctl_done((union ctl_io *)ctsio); 9085 return (retval); 9086 } 9087 9088 lun_datalen = sizeof(*lun_data) + 9089 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9090 9091 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9092 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9093 ctsio->kern_sg_entries = 0; 9094 9095 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9096 9097 mtx_lock(&softc->ctl_lock); 9098 for (targ_lun_id = 0, num_filled = 0; 9099 targ_lun_id < num_port_luns && num_filled < num_luns; 9100 targ_lun_id++) { 9101 lun_id = ctl_lun_map_from_port(port, targ_lun_id); 9102 if (lun_id == UINT32_MAX) 9103 continue; 9104 lun = softc->ctl_luns[lun_id]; 9105 if (lun == NULL) 9106 continue; 9107 9108 be64enc(lun_data->luns[num_filled++].lundata, 9109 ctl_encode_lun(targ_lun_id)); 9110 9111 /* 9112 * According to SPC-3, rev 14 section 6.21: 9113 * 9114 * "The execution of a REPORT LUNS command to any valid and 9115 * installed logical unit shall clear the REPORTED LUNS DATA 9116 * HAS CHANGED unit attention condition for all logical 9117 * units of that target with respect to the requesting 9118 * initiator. A valid and installed logical unit is one 9119 * having a PERIPHERAL QUALIFIER of 000b in the standard 9120 * INQUIRY data (see 6.4.2)." 9121 * 9122 * If request_lun is NULL, the LUN this report luns command 9123 * was issued to is either disabled or doesn't exist. In that 9124 * case, we shouldn't clear any pending lun change unit 9125 * attention. 9126 */ 9127 if (request_lun != NULL) { 9128 mtx_lock(&lun->lun_lock); 9129 ctl_clr_ua(lun, initidx, CTL_UA_LUN_CHANGE); 9130 mtx_unlock(&lun->lun_lock); 9131 } 9132 } 9133 mtx_unlock(&softc->ctl_lock); 9134 9135 /* 9136 * It's quite possible that we've returned fewer LUNs than we allocated 9137 * space for. Trim it. 9138 */ 9139 lun_datalen = sizeof(*lun_data) + 9140 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9141 ctsio->kern_rel_offset = 0; 9142 ctsio->kern_sg_entries = 0; 9143 ctsio->kern_data_len = min(lun_datalen, alloc_len); 9144 ctsio->kern_total_len = ctsio->kern_data_len; 9145 9146 /* 9147 * We set this to the actual data length, regardless of how much 9148 * space we actually have to return results. If the user looks at 9149 * this value, he'll know whether or not he allocated enough space 9150 * and reissue the command if necessary. We don't support well 9151 * known logical units, so if the user asks for that, return none. 9152 */ 9153 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9154 9155 /* 9156 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9157 * this request. 9158 */ 9159 ctl_set_success(ctsio); 9160 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9161 ctsio->be_move_done = ctl_config_move_done; 9162 ctl_datamove((union ctl_io *)ctsio); 9163 return (retval); 9164} 9165 9166int 9167ctl_request_sense(struct ctl_scsiio *ctsio) 9168{ 9169 struct ctl_softc *softc = CTL_SOFTC(ctsio); 9170 struct ctl_lun *lun = CTL_LUN(ctsio); 9171 struct scsi_request_sense *cdb; 9172 struct scsi_sense_data *sense_ptr, *ps; 9173 uint32_t initidx; 9174 int have_error; 9175 u_int sense_len = SSD_FULL_SIZE; 9176 scsi_sense_data_type sense_format; 9177 ctl_ua_type ua_type; 9178 uint8_t asc = 0, ascq = 0; 9179 9180 cdb = (struct scsi_request_sense *)ctsio->cdb; 9181 9182 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9183 9184 /* 9185 * Determine which sense format the user wants. 9186 */ 9187 if (cdb->byte2 & SRS_DESC) 9188 sense_format = SSD_TYPE_DESC; 9189 else 9190 sense_format = SSD_TYPE_FIXED; 9191 9192 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9193 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9194 ctsio->kern_sg_entries = 0; 9195 ctsio->kern_rel_offset = 0; 9196 9197 /* 9198 * struct scsi_sense_data, which is currently set to 256 bytes, is 9199 * larger than the largest allowed value for the length field in the 9200 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9201 */ 9202 ctsio->kern_data_len = cdb->length; 9203 ctsio->kern_total_len = cdb->length; 9204 9205 /* 9206 * If we don't have a LUN, we don't have any pending sense. 9207 */ 9208 if (lun == NULL || 9209 ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 9210 softc->ha_link < CTL_HA_LINK_UNKNOWN)) { 9211 /* "Logical unit not supported" */ 9212 ctl_set_sense_data(sense_ptr, &sense_len, NULL, sense_format, 9213 /*current_error*/ 1, 9214 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 9215 /*asc*/ 0x25, 9216 /*ascq*/ 0x00, 9217 SSD_ELEM_NONE); 9218 goto send; 9219 } 9220 9221 have_error = 0; 9222 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9223 /* 9224 * Check for pending sense, and then for pending unit attentions. 9225 * Pending sense gets returned first, then pending unit attentions. 9226 */ 9227 mtx_lock(&lun->lun_lock); 9228 ps = lun->pending_sense[initidx / CTL_MAX_INIT_PER_PORT]; 9229 if (ps != NULL) 9230 ps += initidx % CTL_MAX_INIT_PER_PORT; 9231 if (ps != NULL && ps->error_code != 0) { 9232 scsi_sense_data_type stored_format; 9233 9234 /* 9235 * Check to see which sense format was used for the stored 9236 * sense data. 9237 */ 9238 stored_format = scsi_sense_type(ps); 9239 9240 /* 9241 * If the user requested a different sense format than the 9242 * one we stored, then we need to convert it to the other 9243 * format. If we're going from descriptor to fixed format 9244 * sense data, we may lose things in translation, depending 9245 * on what options were used. 9246 * 9247 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9248 * for some reason we'll just copy it out as-is. 9249 */ 9250 if ((stored_format == SSD_TYPE_FIXED) 9251 && (sense_format == SSD_TYPE_DESC)) 9252 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9253 ps, (struct scsi_sense_data_desc *)sense_ptr); 9254 else if ((stored_format == SSD_TYPE_DESC) 9255 && (sense_format == SSD_TYPE_FIXED)) 9256 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9257 ps, (struct scsi_sense_data_fixed *)sense_ptr); 9258 else 9259 memcpy(sense_ptr, ps, sizeof(*sense_ptr)); 9260 9261 ps->error_code = 0; 9262 have_error = 1; 9263 } else { 9264 ua_type = ctl_build_ua(lun, initidx, sense_ptr, &sense_len, 9265 sense_format); 9266 if (ua_type != CTL_UA_NONE) 9267 have_error = 1; 9268 } 9269 if (have_error == 0) { 9270 /* 9271 * Report informational exception if have one and allowed. 9272 */ 9273 if (lun->MODE_IE.mrie != SIEP_MRIE_NO) { 9274 asc = lun->ie_asc; 9275 ascq = lun->ie_ascq; 9276 } 9277 ctl_set_sense_data(sense_ptr, &sense_len, lun, sense_format, 9278 /*current_error*/ 1, 9279 /*sense_key*/ SSD_KEY_NO_SENSE, 9280 /*asc*/ asc, 9281 /*ascq*/ ascq, 9282 SSD_ELEM_NONE); 9283 } 9284 mtx_unlock(&lun->lun_lock); 9285 9286send: 9287 /* 9288 * We report the SCSI status as OK, since the status of the command 9289 * itself is OK. We're reporting sense as parameter data. 9290 */ 9291 ctl_set_success(ctsio); 9292 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9293 ctsio->be_move_done = ctl_config_move_done; 9294 ctl_datamove((union ctl_io *)ctsio); 9295 return (CTL_RETVAL_COMPLETE); 9296} 9297 9298int 9299ctl_tur(struct ctl_scsiio *ctsio) 9300{ 9301 9302 CTL_DEBUG_PRINT(("ctl_tur\n")); 9303 9304 ctl_set_success(ctsio); 9305 ctl_done((union ctl_io *)ctsio); 9306 9307 return (CTL_RETVAL_COMPLETE); 9308} 9309 9310/* 9311 * SCSI VPD page 0x00, the Supported VPD Pages page. 9312 */ 9313static int 9314ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9315{ 9316 struct ctl_lun *lun = CTL_LUN(ctsio); 9317 struct scsi_vpd_supported_pages *pages; 9318 int sup_page_size; 9319 int p; 9320 9321 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9322 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9323 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9324 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9325 ctsio->kern_rel_offset = 0; 9326 ctsio->kern_sg_entries = 0; 9327 ctsio->kern_data_len = min(sup_page_size, alloc_len); 9328 ctsio->kern_total_len = ctsio->kern_data_len; 9329 9330 /* 9331 * The control device is always connected. The disk device, on the 9332 * other hand, may not be online all the time. Need to change this 9333 * to figure out whether the disk device is actually online or not. 9334 */ 9335 if (lun != NULL) 9336 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9337 lun->be_lun->lun_type; 9338 else 9339 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9340 9341 p = 0; 9342 /* Supported VPD pages */ 9343 pages->page_list[p++] = SVPD_SUPPORTED_PAGES; 9344 /* Serial Number */ 9345 pages->page_list[p++] = SVPD_UNIT_SERIAL_NUMBER; 9346 /* Device Identification */ 9347 pages->page_list[p++] = SVPD_DEVICE_ID; 9348 /* Extended INQUIRY Data */ 9349 pages->page_list[p++] = SVPD_EXTENDED_INQUIRY_DATA; 9350 /* Mode Page Policy */ 9351 pages->page_list[p++] = SVPD_MODE_PAGE_POLICY; 9352 /* SCSI Ports */ 9353 pages->page_list[p++] = SVPD_SCSI_PORTS; 9354 /* Third-party Copy */ 9355 pages->page_list[p++] = SVPD_SCSI_TPC; 9356 if (lun != NULL && lun->be_lun->lun_type == T_DIRECT) { 9357 /* Block limits */ 9358 pages->page_list[p++] = SVPD_BLOCK_LIMITS; 9359 /* Block Device Characteristics */ 9360 pages->page_list[p++] = SVPD_BDC; 9361 /* Logical Block Provisioning */ 9362 pages->page_list[p++] = SVPD_LBP; 9363 } 9364 pages->length = p; 9365 9366 ctl_set_success(ctsio); 9367 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9368 ctsio->be_move_done = ctl_config_move_done; 9369 ctl_datamove((union ctl_io *)ctsio); 9370 return (CTL_RETVAL_COMPLETE); 9371} 9372 9373/* 9374 * SCSI VPD page 0x80, the Unit Serial Number page. 9375 */ 9376static int 9377ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9378{ 9379 struct ctl_lun *lun = CTL_LUN(ctsio); 9380 struct scsi_vpd_unit_serial_number *sn_ptr; 9381 int data_len; 9382 9383 data_len = 4 + CTL_SN_LEN; 9384 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9385 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9386 ctsio->kern_rel_offset = 0; 9387 ctsio->kern_sg_entries = 0; 9388 ctsio->kern_data_len = min(data_len, alloc_len); 9389 ctsio->kern_total_len = ctsio->kern_data_len; 9390 9391 /* 9392 * The control device is always connected. The disk device, on the 9393 * other hand, may not be online all the time. Need to change this 9394 * to figure out whether the disk device is actually online or not. 9395 */ 9396 if (lun != NULL) 9397 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9398 lun->be_lun->lun_type; 9399 else 9400 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9401 9402 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9403 sn_ptr->length = CTL_SN_LEN; 9404 /* 9405 * If we don't have a LUN, we just leave the serial number as 9406 * all spaces. 9407 */ 9408 if (lun != NULL) { 9409 strncpy((char *)sn_ptr->serial_num, 9410 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9411 } else 9412 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9413 9414 ctl_set_success(ctsio); 9415 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9416 ctsio->be_move_done = ctl_config_move_done; 9417 ctl_datamove((union ctl_io *)ctsio); 9418 return (CTL_RETVAL_COMPLETE); 9419} 9420 9421 9422/* 9423 * SCSI VPD page 0x86, the Extended INQUIRY Data page. 9424 */ 9425static int 9426ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9427{ 9428 struct ctl_lun *lun = CTL_LUN(ctsio); 9429 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9430 int data_len; 9431 9432 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9433 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9434 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9435 ctsio->kern_sg_entries = 0; 9436 ctsio->kern_rel_offset = 0; 9437 ctsio->kern_data_len = min(data_len, alloc_len); 9438 ctsio->kern_total_len = ctsio->kern_data_len; 9439 9440 /* 9441 * The control device is always connected. The disk device, on the 9442 * other hand, may not be online all the time. 9443 */ 9444 if (lun != NULL) 9445 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9446 lun->be_lun->lun_type; 9447 else 9448 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9449 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9450 scsi_ulto2b(data_len - 4, eid_ptr->page_length); 9451 /* 9452 * We support head of queue, ordered and simple tags. 9453 */ 9454 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9455 /* 9456 * Volatile cache supported. 9457 */ 9458 eid_ptr->flags3 = SVPD_EID_V_SUP; 9459 9460 /* 9461 * This means that we clear the REPORTED LUNS DATA HAS CHANGED unit 9462 * attention for a particular IT nexus on all LUNs once we report 9463 * it to that nexus once. This bit is required as of SPC-4. 9464 */ 9465 eid_ptr->flags4 = SVPD_EID_LUICLR; 9466 9467 /* 9468 * We support revert to defaults (RTD) bit in MODE SELECT. 9469 */ 9470 eid_ptr->flags5 = SVPD_EID_RTD_SUP; 9471 9472 /* 9473 * XXX KDM in order to correctly answer this, we would need 9474 * information from the SIM to determine how much sense data it 9475 * can send. So this would really be a path inquiry field, most 9476 * likely. This can be set to a maximum of 252 according to SPC-4, 9477 * but the hardware may or may not be able to support that much. 9478 * 0 just means that the maximum sense data length is not reported. 9479 */ 9480 eid_ptr->max_sense_length = 0; 9481 9482 ctl_set_success(ctsio); 9483 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9484 ctsio->be_move_done = ctl_config_move_done; 9485 ctl_datamove((union ctl_io *)ctsio); 9486 return (CTL_RETVAL_COMPLETE); 9487} 9488 9489static int 9490ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9491{ 9492 struct ctl_lun *lun = CTL_LUN(ctsio); 9493 struct scsi_vpd_mode_page_policy *mpp_ptr; 9494 int data_len; 9495 9496 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9497 sizeof(struct scsi_vpd_mode_page_policy_descr); 9498 9499 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9500 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9501 ctsio->kern_rel_offset = 0; 9502 ctsio->kern_sg_entries = 0; 9503 ctsio->kern_data_len = min(data_len, alloc_len); 9504 ctsio->kern_total_len = ctsio->kern_data_len; 9505 9506 /* 9507 * The control device is always connected. The disk device, on the 9508 * other hand, may not be online all the time. 9509 */ 9510 if (lun != NULL) 9511 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9512 lun->be_lun->lun_type; 9513 else 9514 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9515 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9516 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9517 mpp_ptr->descr[0].page_code = 0x3f; 9518 mpp_ptr->descr[0].subpage_code = 0xff; 9519 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9520 9521 ctl_set_success(ctsio); 9522 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9523 ctsio->be_move_done = ctl_config_move_done; 9524 ctl_datamove((union ctl_io *)ctsio); 9525 return (CTL_RETVAL_COMPLETE); 9526} 9527 9528/* 9529 * SCSI VPD page 0x83, the Device Identification page. 9530 */ 9531static int 9532ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9533{ 9534 struct ctl_softc *softc = CTL_SOFTC(ctsio); 9535 struct ctl_port *port = CTL_PORT(ctsio); 9536 struct ctl_lun *lun = CTL_LUN(ctsio); 9537 struct scsi_vpd_device_id *devid_ptr; 9538 struct scsi_vpd_id_descriptor *desc; 9539 int data_len, g; 9540 uint8_t proto; 9541 9542 data_len = sizeof(struct scsi_vpd_device_id) + 9543 sizeof(struct scsi_vpd_id_descriptor) + 9544 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9545 sizeof(struct scsi_vpd_id_descriptor) + 9546 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9547 if (lun && lun->lun_devid) 9548 data_len += lun->lun_devid->len; 9549 if (port && port->port_devid) 9550 data_len += port->port_devid->len; 9551 if (port && port->target_devid) 9552 data_len += port->target_devid->len; 9553 9554 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9555 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9556 ctsio->kern_sg_entries = 0; 9557 ctsio->kern_rel_offset = 0; 9558 ctsio->kern_sg_entries = 0; 9559 ctsio->kern_data_len = min(data_len, alloc_len); 9560 ctsio->kern_total_len = ctsio->kern_data_len; 9561 9562 /* 9563 * The control device is always connected. The disk device, on the 9564 * other hand, may not be online all the time. 9565 */ 9566 if (lun != NULL) 9567 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9568 lun->be_lun->lun_type; 9569 else 9570 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9571 devid_ptr->page_code = SVPD_DEVICE_ID; 9572 scsi_ulto2b(data_len - 4, devid_ptr->length); 9573 9574 if (port && port->port_type == CTL_PORT_FC) 9575 proto = SCSI_PROTO_FC << 4; 9576 else if (port && port->port_type == CTL_PORT_SAS) 9577 proto = SCSI_PROTO_SAS << 4; 9578 else if (port && port->port_type == CTL_PORT_ISCSI) 9579 proto = SCSI_PROTO_ISCSI << 4; 9580 else 9581 proto = SCSI_PROTO_SPI << 4; 9582 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9583 9584 /* 9585 * We're using a LUN association here. i.e., this device ID is a 9586 * per-LUN identifier. 9587 */ 9588 if (lun && lun->lun_devid) { 9589 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9590 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9591 lun->lun_devid->len); 9592 } 9593 9594 /* 9595 * This is for the WWPN which is a port association. 9596 */ 9597 if (port && port->port_devid) { 9598 memcpy(desc, port->port_devid->data, port->port_devid->len); 9599 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9600 port->port_devid->len); 9601 } 9602 9603 /* 9604 * This is for the Relative Target Port(type 4h) identifier 9605 */ 9606 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9607 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9608 SVPD_ID_TYPE_RELTARG; 9609 desc->length = 4; 9610 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9611 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9612 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9613 9614 /* 9615 * This is for the Target Port Group(type 5h) identifier 9616 */ 9617 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9618 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9619 SVPD_ID_TYPE_TPORTGRP; 9620 desc->length = 4; 9621 if (softc->is_single || 9622 (port && port->status & CTL_PORT_STATUS_HA_SHARED)) 9623 g = 1; 9624 else 9625 g = 2 + ctsio->io_hdr.nexus.targ_port / softc->port_cnt; 9626 scsi_ulto2b(g, &desc->identifier[2]); 9627 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9628 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9629 9630 /* 9631 * This is for the Target identifier 9632 */ 9633 if (port && port->target_devid) { 9634 memcpy(desc, port->target_devid->data, port->target_devid->len); 9635 } 9636 9637 ctl_set_success(ctsio); 9638 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9639 ctsio->be_move_done = ctl_config_move_done; 9640 ctl_datamove((union ctl_io *)ctsio); 9641 return (CTL_RETVAL_COMPLETE); 9642} 9643 9644static int 9645ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9646{ 9647 struct ctl_softc *softc = CTL_SOFTC(ctsio); 9648 struct ctl_lun *lun = CTL_LUN(ctsio); 9649 struct scsi_vpd_scsi_ports *sp; 9650 struct scsi_vpd_port_designation *pd; 9651 struct scsi_vpd_port_designation_cont *pdc; 9652 struct ctl_port *port; 9653 int data_len, num_target_ports, iid_len, id_len; 9654 9655 num_target_ports = 0; 9656 iid_len = 0; 9657 id_len = 0; 9658 mtx_lock(&softc->ctl_lock); 9659 STAILQ_FOREACH(port, &softc->port_list, links) { 9660 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9661 continue; 9662 if (lun != NULL && 9663 ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 9664 continue; 9665 num_target_ports++; 9666 if (port->init_devid) 9667 iid_len += port->init_devid->len; 9668 if (port->port_devid) 9669 id_len += port->port_devid->len; 9670 } 9671 mtx_unlock(&softc->ctl_lock); 9672 9673 data_len = sizeof(struct scsi_vpd_scsi_ports) + 9674 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 9675 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 9676 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9677 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 9678 ctsio->kern_sg_entries = 0; 9679 ctsio->kern_rel_offset = 0; 9680 ctsio->kern_sg_entries = 0; 9681 ctsio->kern_data_len = min(data_len, alloc_len); 9682 ctsio->kern_total_len = ctsio->kern_data_len; 9683 9684 /* 9685 * The control device is always connected. The disk device, on the 9686 * other hand, may not be online all the time. Need to change this 9687 * to figure out whether the disk device is actually online or not. 9688 */ 9689 if (lun != NULL) 9690 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 9691 lun->be_lun->lun_type; 9692 else 9693 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9694 9695 sp->page_code = SVPD_SCSI_PORTS; 9696 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 9697 sp->page_length); 9698 pd = &sp->design[0]; 9699 9700 mtx_lock(&softc->ctl_lock); 9701 STAILQ_FOREACH(port, &softc->port_list, links) { 9702 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9703 continue; 9704 if (lun != NULL && 9705 ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 9706 continue; 9707 scsi_ulto2b(port->targ_port, pd->relative_port_id); 9708 if (port->init_devid) { 9709 iid_len = port->init_devid->len; 9710 memcpy(pd->initiator_transportid, 9711 port->init_devid->data, port->init_devid->len); 9712 } else 9713 iid_len = 0; 9714 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 9715 pdc = (struct scsi_vpd_port_designation_cont *) 9716 (&pd->initiator_transportid[iid_len]); 9717 if (port->port_devid) { 9718 id_len = port->port_devid->len; 9719 memcpy(pdc->target_port_descriptors, 9720 port->port_devid->data, port->port_devid->len); 9721 } else 9722 id_len = 0; 9723 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 9724 pd = (struct scsi_vpd_port_designation *) 9725 ((uint8_t *)pdc->target_port_descriptors + id_len); 9726 } 9727 mtx_unlock(&softc->ctl_lock); 9728 9729 ctl_set_success(ctsio); 9730 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9731 ctsio->be_move_done = ctl_config_move_done; 9732 ctl_datamove((union ctl_io *)ctsio); 9733 return (CTL_RETVAL_COMPLETE); 9734} 9735 9736static int 9737ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 9738{ 9739 struct ctl_lun *lun = CTL_LUN(ctsio); 9740 struct scsi_vpd_block_limits *bl_ptr; 9741 uint64_t ival; 9742 9743 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 9744 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 9745 ctsio->kern_sg_entries = 0; 9746 ctsio->kern_rel_offset = 0; 9747 ctsio->kern_sg_entries = 0; 9748 ctsio->kern_data_len = min(sizeof(*bl_ptr), alloc_len); 9749 ctsio->kern_total_len = ctsio->kern_data_len; 9750 9751 /* 9752 * The control device is always connected. The disk device, on the 9753 * other hand, may not be online all the time. Need to change this 9754 * to figure out whether the disk device is actually online or not. 9755 */ 9756 if (lun != NULL) 9757 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9758 lun->be_lun->lun_type; 9759 else 9760 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9761 9762 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 9763 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 9764 bl_ptr->max_cmp_write_len = 0xff; 9765 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 9766 if (lun != NULL) { 9767 scsi_ulto4b(lun->be_lun->opttxferlen, bl_ptr->opt_txfer_len); 9768 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9769 ival = 0xffffffff; 9770 ctl_get_opt_number(&lun->be_lun->options, 9771 "unmap_max_lba", &ival); 9772 scsi_ulto4b(ival, bl_ptr->max_unmap_lba_cnt); 9773 ival = 0xffffffff; 9774 ctl_get_opt_number(&lun->be_lun->options, 9775 "unmap_max_descr", &ival); 9776 scsi_ulto4b(ival, bl_ptr->max_unmap_blk_cnt); 9777 if (lun->be_lun->ublockexp != 0) { 9778 scsi_ulto4b((1 << lun->be_lun->ublockexp), 9779 bl_ptr->opt_unmap_grain); 9780 scsi_ulto4b(0x80000000 | lun->be_lun->ublockoff, 9781 bl_ptr->unmap_grain_align); 9782 } 9783 } 9784 scsi_ulto4b(lun->be_lun->atomicblock, 9785 bl_ptr->max_atomic_transfer_length); 9786 scsi_ulto4b(0, bl_ptr->atomic_alignment); 9787 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 9788 scsi_ulto4b(0, bl_ptr->max_atomic_transfer_length_with_atomic_boundary); 9789 scsi_ulto4b(0, bl_ptr->max_atomic_boundary_size); 9790 ival = UINT64_MAX; 9791 ctl_get_opt_number(&lun->be_lun->options, "write_same_max_lba", &ival); 9792 scsi_u64to8b(ival, bl_ptr->max_write_same_length); 9793 } 9794 9795 ctl_set_success(ctsio); 9796 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9797 ctsio->be_move_done = ctl_config_move_done; 9798 ctl_datamove((union ctl_io *)ctsio); 9799 return (CTL_RETVAL_COMPLETE); 9800} 9801 9802static int 9803ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 9804{ 9805 struct ctl_lun *lun = CTL_LUN(ctsio); 9806 struct scsi_vpd_block_device_characteristics *bdc_ptr; 9807 const char *value; 9808 u_int i; 9809 9810 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 9811 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 9812 ctsio->kern_sg_entries = 0; 9813 ctsio->kern_rel_offset = 0; 9814 ctsio->kern_data_len = min(sizeof(*bdc_ptr), alloc_len); 9815 ctsio->kern_total_len = ctsio->kern_data_len; 9816 9817 /* 9818 * The control device is always connected. The disk device, on the 9819 * other hand, may not be online all the time. Need to change this 9820 * to figure out whether the disk device is actually online or not. 9821 */ 9822 if (lun != NULL) 9823 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9824 lun->be_lun->lun_type; 9825 else 9826 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9827 bdc_ptr->page_code = SVPD_BDC; 9828 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 9829 if (lun != NULL && 9830 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 9831 i = strtol(value, NULL, 0); 9832 else 9833 i = CTL_DEFAULT_ROTATION_RATE; 9834 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 9835 if (lun != NULL && 9836 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 9837 i = strtol(value, NULL, 0); 9838 else 9839 i = 0; 9840 bdc_ptr->wab_wac_ff = (i & 0x0f); 9841 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 9842 9843 ctl_set_success(ctsio); 9844 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9845 ctsio->be_move_done = ctl_config_move_done; 9846 ctl_datamove((union ctl_io *)ctsio); 9847 return (CTL_RETVAL_COMPLETE); 9848} 9849 9850static int 9851ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 9852{ 9853 struct ctl_lun *lun = CTL_LUN(ctsio); 9854 struct scsi_vpd_logical_block_prov *lbp_ptr; 9855 const char *value; 9856 9857 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 9858 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 9859 ctsio->kern_sg_entries = 0; 9860 ctsio->kern_rel_offset = 0; 9861 ctsio->kern_data_len = min(sizeof(*lbp_ptr), alloc_len); 9862 ctsio->kern_total_len = ctsio->kern_data_len; 9863 9864 /* 9865 * The control device is always connected. The disk device, on the 9866 * other hand, may not be online all the time. Need to change this 9867 * to figure out whether the disk device is actually online or not. 9868 */ 9869 if (lun != NULL) 9870 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9871 lun->be_lun->lun_type; 9872 else 9873 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9874 9875 lbp_ptr->page_code = SVPD_LBP; 9876 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 9877 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 9878 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9879 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 9880 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 9881 value = ctl_get_opt(&lun->be_lun->options, "provisioning_type"); 9882 if (value != NULL) { 9883 if (strcmp(value, "resource") == 0) 9884 lbp_ptr->prov_type = SVPD_LBP_RESOURCE; 9885 else if (strcmp(value, "thin") == 0) 9886 lbp_ptr->prov_type = SVPD_LBP_THIN; 9887 } else 9888 lbp_ptr->prov_type = SVPD_LBP_THIN; 9889 } 9890 9891 ctl_set_success(ctsio); 9892 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9893 ctsio->be_move_done = ctl_config_move_done; 9894 ctl_datamove((union ctl_io *)ctsio); 9895 return (CTL_RETVAL_COMPLETE); 9896} 9897 9898/* 9899 * INQUIRY with the EVPD bit set. 9900 */ 9901static int 9902ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 9903{ 9904 struct ctl_lun *lun = CTL_LUN(ctsio); 9905 struct scsi_inquiry *cdb; 9906 int alloc_len, retval; 9907 9908 cdb = (struct scsi_inquiry *)ctsio->cdb; 9909 alloc_len = scsi_2btoul(cdb->length); 9910 9911 switch (cdb->page_code) { 9912 case SVPD_SUPPORTED_PAGES: 9913 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 9914 break; 9915 case SVPD_UNIT_SERIAL_NUMBER: 9916 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 9917 break; 9918 case SVPD_DEVICE_ID: 9919 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 9920 break; 9921 case SVPD_EXTENDED_INQUIRY_DATA: 9922 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 9923 break; 9924 case SVPD_MODE_PAGE_POLICY: 9925 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 9926 break; 9927 case SVPD_SCSI_PORTS: 9928 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 9929 break; 9930 case SVPD_SCSI_TPC: 9931 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 9932 break; 9933 case SVPD_BLOCK_LIMITS: 9934 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 9935 goto err; 9936 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 9937 break; 9938 case SVPD_BDC: 9939 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 9940 goto err; 9941 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 9942 break; 9943 case SVPD_LBP: 9944 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 9945 goto err; 9946 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 9947 break; 9948 default: 9949err: 9950 ctl_set_invalid_field(ctsio, 9951 /*sks_valid*/ 1, 9952 /*command*/ 1, 9953 /*field*/ 2, 9954 /*bit_valid*/ 0, 9955 /*bit*/ 0); 9956 ctl_done((union ctl_io *)ctsio); 9957 retval = CTL_RETVAL_COMPLETE; 9958 break; 9959 } 9960 9961 return (retval); 9962} 9963 9964/* 9965 * Standard INQUIRY data. 9966 */ 9967static int 9968ctl_inquiry_std(struct ctl_scsiio *ctsio) 9969{ 9970 struct ctl_softc *softc = CTL_SOFTC(ctsio); 9971 struct ctl_port *port = CTL_PORT(ctsio); 9972 struct ctl_lun *lun = CTL_LUN(ctsio); 9973 struct scsi_inquiry_data *inq_ptr; 9974 struct scsi_inquiry *cdb; 9975 char *val; 9976 uint32_t alloc_len, data_len; 9977 ctl_port_type port_type; 9978 9979 port_type = port->port_type; 9980 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 9981 port_type = CTL_PORT_SCSI; 9982 9983 cdb = (struct scsi_inquiry *)ctsio->cdb; 9984 alloc_len = scsi_2btoul(cdb->length); 9985 9986 /* 9987 * We malloc the full inquiry data size here and fill it 9988 * in. If the user only asks for less, we'll give him 9989 * that much. 9990 */ 9991 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 9992 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9993 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 9994 ctsio->kern_sg_entries = 0; 9995 ctsio->kern_rel_offset = 0; 9996 ctsio->kern_data_len = min(data_len, alloc_len); 9997 ctsio->kern_total_len = ctsio->kern_data_len; 9998 9999 if (lun != NULL) { 10000 if ((lun->flags & CTL_LUN_PRIMARY_SC) || 10001 softc->ha_link >= CTL_HA_LINK_UNKNOWN) { 10002 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10003 lun->be_lun->lun_type; 10004 } else { 10005 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | 10006 lun->be_lun->lun_type; 10007 } 10008 if (lun->flags & CTL_LUN_REMOVABLE) 10009 inq_ptr->dev_qual2 |= SID_RMB; 10010 } else 10011 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10012 10013 /* RMB in byte 2 is 0 */ 10014 inq_ptr->version = SCSI_REV_SPC5; 10015 10016 /* 10017 * According to SAM-3, even if a device only supports a single 10018 * level of LUN addressing, it should still set the HISUP bit: 10019 * 10020 * 4.9.1 Logical unit numbers overview 10021 * 10022 * All logical unit number formats described in this standard are 10023 * hierarchical in structure even when only a single level in that 10024 * hierarchy is used. The HISUP bit shall be set to one in the 10025 * standard INQUIRY data (see SPC-2) when any logical unit number 10026 * format described in this standard is used. Non-hierarchical 10027 * formats are outside the scope of this standard. 10028 * 10029 * Therefore we set the HiSup bit here. 10030 * 10031 * The response format is 2, per SPC-3. 10032 */ 10033 inq_ptr->response_format = SID_HiSup | 2; 10034 10035 inq_ptr->additional_length = data_len - 10036 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10037 CTL_DEBUG_PRINT(("additional_length = %d\n", 10038 inq_ptr->additional_length)); 10039 10040 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10041 if (port_type == CTL_PORT_SCSI) 10042 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10043 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10044 inq_ptr->flags = SID_CmdQue; 10045 if (port_type == CTL_PORT_SCSI) 10046 inq_ptr->flags |= SID_WBus16 | SID_Sync; 10047 10048 /* 10049 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10050 * We have 8 bytes for the vendor name, and 16 bytes for the device 10051 * name and 4 bytes for the revision. 10052 */ 10053 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10054 "vendor")) == NULL) { 10055 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10056 } else { 10057 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10058 strncpy(inq_ptr->vendor, val, 10059 min(sizeof(inq_ptr->vendor), strlen(val))); 10060 } 10061 if (lun == NULL) { 10062 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10063 sizeof(inq_ptr->product)); 10064 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10065 switch (lun->be_lun->lun_type) { 10066 case T_DIRECT: 10067 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10068 sizeof(inq_ptr->product)); 10069 break; 10070 case T_PROCESSOR: 10071 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10072 sizeof(inq_ptr->product)); 10073 break; 10074 case T_CDROM: 10075 strncpy(inq_ptr->product, CTL_CDROM_PRODUCT, 10076 sizeof(inq_ptr->product)); 10077 break; 10078 default: 10079 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10080 sizeof(inq_ptr->product)); 10081 break; 10082 } 10083 } else { 10084 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10085 strncpy(inq_ptr->product, val, 10086 min(sizeof(inq_ptr->product), strlen(val))); 10087 } 10088 10089 /* 10090 * XXX make this a macro somewhere so it automatically gets 10091 * incremented when we make changes. 10092 */ 10093 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10094 "revision")) == NULL) { 10095 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10096 } else { 10097 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10098 strncpy(inq_ptr->revision, val, 10099 min(sizeof(inq_ptr->revision), strlen(val))); 10100 } 10101 10102 /* 10103 * For parallel SCSI, we support double transition and single 10104 * transition clocking. We also support QAS (Quick Arbitration 10105 * and Selection) and Information Unit transfers on both the 10106 * control and array devices. 10107 */ 10108 if (port_type == CTL_PORT_SCSI) 10109 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10110 SID_SPI_IUS; 10111 10112 /* SAM-6 (no version claimed) */ 10113 scsi_ulto2b(0x00C0, inq_ptr->version1); 10114 /* SPC-5 (no version claimed) */ 10115 scsi_ulto2b(0x05C0, inq_ptr->version2); 10116 if (port_type == CTL_PORT_FC) { 10117 /* FCP-2 ANSI INCITS.350:2003 */ 10118 scsi_ulto2b(0x0917, inq_ptr->version3); 10119 } else if (port_type == CTL_PORT_SCSI) { 10120 /* SPI-4 ANSI INCITS.362:200x */ 10121 scsi_ulto2b(0x0B56, inq_ptr->version3); 10122 } else if (port_type == CTL_PORT_ISCSI) { 10123 /* iSCSI (no version claimed) */ 10124 scsi_ulto2b(0x0960, inq_ptr->version3); 10125 } else if (port_type == CTL_PORT_SAS) { 10126 /* SAS (no version claimed) */ 10127 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10128 } else if (port_type == CTL_PORT_UMASS) { 10129 /* USB Mass Storage Class Bulk-Only Transport, Revision 1.0 */ 10130 scsi_ulto2b(0x1730, inq_ptr->version3); 10131 } 10132 10133 if (lun == NULL) { 10134 /* SBC-4 (no version claimed) */ 10135 scsi_ulto2b(0x0600, inq_ptr->version4); 10136 } else { 10137 switch (lun->be_lun->lun_type) { 10138 case T_DIRECT: 10139 /* SBC-4 (no version claimed) */ 10140 scsi_ulto2b(0x0600, inq_ptr->version4); 10141 break; 10142 case T_PROCESSOR: 10143 break; 10144 case T_CDROM: 10145 /* MMC-6 (no version claimed) */ 10146 scsi_ulto2b(0x04E0, inq_ptr->version4); 10147 break; 10148 default: 10149 break; 10150 } 10151 } 10152 10153 ctl_set_success(ctsio); 10154 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10155 ctsio->be_move_done = ctl_config_move_done; 10156 ctl_datamove((union ctl_io *)ctsio); 10157 return (CTL_RETVAL_COMPLETE); 10158} 10159 10160int 10161ctl_inquiry(struct ctl_scsiio *ctsio) 10162{ 10163 struct scsi_inquiry *cdb; 10164 int retval; 10165 10166 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10167 10168 cdb = (struct scsi_inquiry *)ctsio->cdb; 10169 if (cdb->byte2 & SI_EVPD) 10170 retval = ctl_inquiry_evpd(ctsio); 10171 else if (cdb->page_code == 0) 10172 retval = ctl_inquiry_std(ctsio); 10173 else { 10174 ctl_set_invalid_field(ctsio, 10175 /*sks_valid*/ 1, 10176 /*command*/ 1, 10177 /*field*/ 2, 10178 /*bit_valid*/ 0, 10179 /*bit*/ 0); 10180 ctl_done((union ctl_io *)ctsio); 10181 return (CTL_RETVAL_COMPLETE); 10182 } 10183 10184 return (retval); 10185} 10186 10187int 10188ctl_get_config(struct ctl_scsiio *ctsio) 10189{ 10190 struct ctl_lun *lun = CTL_LUN(ctsio); 10191 struct scsi_get_config_header *hdr; 10192 struct scsi_get_config_feature *feature; 10193 struct scsi_get_config *cdb; 10194 uint32_t alloc_len, data_len; 10195 int rt, starting; 10196 10197 cdb = (struct scsi_get_config *)ctsio->cdb; 10198 rt = (cdb->rt & SGC_RT_MASK); 10199 starting = scsi_2btoul(cdb->starting_feature); 10200 alloc_len = scsi_2btoul(cdb->length); 10201 10202 data_len = sizeof(struct scsi_get_config_header) + 10203 sizeof(struct scsi_get_config_feature) + 8 + 10204 sizeof(struct scsi_get_config_feature) + 8 + 10205 sizeof(struct scsi_get_config_feature) + 4 + 10206 sizeof(struct scsi_get_config_feature) + 4 + 10207 sizeof(struct scsi_get_config_feature) + 8 + 10208 sizeof(struct scsi_get_config_feature) + 10209 sizeof(struct scsi_get_config_feature) + 4 + 10210 sizeof(struct scsi_get_config_feature) + 4 + 10211 sizeof(struct scsi_get_config_feature) + 4 + 10212 sizeof(struct scsi_get_config_feature) + 4 + 10213 sizeof(struct scsi_get_config_feature) + 4 + 10214 sizeof(struct scsi_get_config_feature) + 4; 10215 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10216 ctsio->kern_sg_entries = 0; 10217 ctsio->kern_rel_offset = 0; 10218 10219 hdr = (struct scsi_get_config_header *)ctsio->kern_data_ptr; 10220 if (lun->flags & CTL_LUN_NO_MEDIA) 10221 scsi_ulto2b(0x0000, hdr->current_profile); 10222 else 10223 scsi_ulto2b(0x0010, hdr->current_profile); 10224 feature = (struct scsi_get_config_feature *)(hdr + 1); 10225 10226 if (starting > 0x003b) 10227 goto done; 10228 if (starting > 0x003a) 10229 goto f3b; 10230 if (starting > 0x002b) 10231 goto f3a; 10232 if (starting > 0x002a) 10233 goto f2b; 10234 if (starting > 0x001f) 10235 goto f2a; 10236 if (starting > 0x001e) 10237 goto f1f; 10238 if (starting > 0x001d) 10239 goto f1e; 10240 if (starting > 0x0010) 10241 goto f1d; 10242 if (starting > 0x0003) 10243 goto f10; 10244 if (starting > 0x0002) 10245 goto f3; 10246 if (starting > 0x0001) 10247 goto f2; 10248 if (starting > 0x0000) 10249 goto f1; 10250 10251 /* Profile List */ 10252 scsi_ulto2b(0x0000, feature->feature_code); 10253 feature->flags = SGC_F_PERSISTENT | SGC_F_CURRENT; 10254 feature->add_length = 8; 10255 scsi_ulto2b(0x0008, &feature->feature_data[0]); /* CD-ROM */ 10256 feature->feature_data[2] = 0x00; 10257 scsi_ulto2b(0x0010, &feature->feature_data[4]); /* DVD-ROM */ 10258 feature->feature_data[6] = 0x01; 10259 feature = (struct scsi_get_config_feature *) 10260 &feature->feature_data[feature->add_length]; 10261 10262f1: /* Core */ 10263 scsi_ulto2b(0x0001, feature->feature_code); 10264 feature->flags = 0x08 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10265 feature->add_length = 8; 10266 scsi_ulto4b(0x00000000, &feature->feature_data[0]); 10267 feature->feature_data[4] = 0x03; 10268 feature = (struct scsi_get_config_feature *) 10269 &feature->feature_data[feature->add_length]; 10270 10271f2: /* Morphing */ 10272 scsi_ulto2b(0x0002, feature->feature_code); 10273 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10274 feature->add_length = 4; 10275 feature->feature_data[0] = 0x02; 10276 feature = (struct scsi_get_config_feature *) 10277 &feature->feature_data[feature->add_length]; 10278 10279f3: /* Removable Medium */ 10280 scsi_ulto2b(0x0003, feature->feature_code); 10281 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10282 feature->add_length = 4; 10283 feature->feature_data[0] = 0x39; 10284 feature = (struct scsi_get_config_feature *) 10285 &feature->feature_data[feature->add_length]; 10286 10287 if (rt == SGC_RT_CURRENT && (lun->flags & CTL_LUN_NO_MEDIA)) 10288 goto done; 10289 10290f10: /* Random Read */ 10291 scsi_ulto2b(0x0010, 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 = 8; 10296 scsi_ulto4b(lun->be_lun->blocksize, &feature->feature_data[0]); 10297 scsi_ulto2b(1, &feature->feature_data[4]); 10298 feature->feature_data[6] = 0x00; 10299 feature = (struct scsi_get_config_feature *) 10300 &feature->feature_data[feature->add_length]; 10301 10302f1d: /* Multi-Read */ 10303 scsi_ulto2b(0x001D, feature->feature_code); 10304 feature->flags = 0x00; 10305 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10306 feature->flags |= SGC_F_CURRENT; 10307 feature->add_length = 0; 10308 feature = (struct scsi_get_config_feature *) 10309 &feature->feature_data[feature->add_length]; 10310 10311f1e: /* CD Read */ 10312 scsi_ulto2b(0x001E, feature->feature_code); 10313 feature->flags = 0x00; 10314 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10315 feature->flags |= SGC_F_CURRENT; 10316 feature->add_length = 4; 10317 feature->feature_data[0] = 0x00; 10318 feature = (struct scsi_get_config_feature *) 10319 &feature->feature_data[feature->add_length]; 10320 10321f1f: /* DVD Read */ 10322 scsi_ulto2b(0x001F, feature->feature_code); 10323 feature->flags = 0x08; 10324 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10325 feature->flags |= SGC_F_CURRENT; 10326 feature->add_length = 4; 10327 feature->feature_data[0] = 0x01; 10328 feature->feature_data[2] = 0x03; 10329 feature = (struct scsi_get_config_feature *) 10330 &feature->feature_data[feature->add_length]; 10331 10332f2a: /* DVD+RW */ 10333 scsi_ulto2b(0x002A, feature->feature_code); 10334 feature->flags = 0x04; 10335 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10336 feature->flags |= SGC_F_CURRENT; 10337 feature->add_length = 4; 10338 feature->feature_data[0] = 0x00; 10339 feature->feature_data[1] = 0x00; 10340 feature = (struct scsi_get_config_feature *) 10341 &feature->feature_data[feature->add_length]; 10342 10343f2b: /* DVD+R */ 10344 scsi_ulto2b(0x002B, feature->feature_code); 10345 feature->flags = 0x00; 10346 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10347 feature->flags |= SGC_F_CURRENT; 10348 feature->add_length = 4; 10349 feature->feature_data[0] = 0x00; 10350 feature = (struct scsi_get_config_feature *) 10351 &feature->feature_data[feature->add_length]; 10352 10353f3a: /* DVD+RW Dual Layer */ 10354 scsi_ulto2b(0x003A, feature->feature_code); 10355 feature->flags = 0x00; 10356 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10357 feature->flags |= SGC_F_CURRENT; 10358 feature->add_length = 4; 10359 feature->feature_data[0] = 0x00; 10360 feature->feature_data[1] = 0x00; 10361 feature = (struct scsi_get_config_feature *) 10362 &feature->feature_data[feature->add_length]; 10363 10364f3b: /* DVD+R Dual Layer */ 10365 scsi_ulto2b(0x003B, feature->feature_code); 10366 feature->flags = 0x00; 10367 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10368 feature->flags |= SGC_F_CURRENT; 10369 feature->add_length = 4; 10370 feature->feature_data[0] = 0x00; 10371 feature = (struct scsi_get_config_feature *) 10372 &feature->feature_data[feature->add_length]; 10373 10374done: 10375 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10376 if (rt == SGC_RT_SPECIFIC && data_len > 4) { 10377 feature = (struct scsi_get_config_feature *)(hdr + 1); 10378 if (scsi_2btoul(feature->feature_code) == starting) 10379 feature = (struct scsi_get_config_feature *) 10380 &feature->feature_data[feature->add_length]; 10381 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10382 } 10383 scsi_ulto4b(data_len - 4, hdr->data_length); 10384 ctsio->kern_data_len = min(data_len, alloc_len); 10385 ctsio->kern_total_len = ctsio->kern_data_len; 10386 10387 ctl_set_success(ctsio); 10388 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10389 ctsio->be_move_done = ctl_config_move_done; 10390 ctl_datamove((union ctl_io *)ctsio); 10391 return (CTL_RETVAL_COMPLETE); 10392} 10393 10394int 10395ctl_get_event_status(struct ctl_scsiio *ctsio) 10396{ 10397 struct scsi_get_event_status_header *hdr; 10398 struct scsi_get_event_status *cdb; 10399 uint32_t alloc_len, data_len; 10400 int notif_class; 10401 10402 cdb = (struct scsi_get_event_status *)ctsio->cdb; 10403 if ((cdb->byte2 & SGESN_POLLED) == 0) { 10404 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1, 10405 /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 10406 ctl_done((union ctl_io *)ctsio); 10407 return (CTL_RETVAL_COMPLETE); 10408 } 10409 notif_class = cdb->notif_class; 10410 alloc_len = scsi_2btoul(cdb->length); 10411 10412 data_len = sizeof(struct scsi_get_event_status_header); 10413 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10414 ctsio->kern_sg_entries = 0; 10415 ctsio->kern_rel_offset = 0; 10416 ctsio->kern_data_len = min(data_len, alloc_len); 10417 ctsio->kern_total_len = ctsio->kern_data_len; 10418 10419 hdr = (struct scsi_get_event_status_header *)ctsio->kern_data_ptr; 10420 scsi_ulto2b(0, hdr->descr_length); 10421 hdr->nea_class = SGESN_NEA; 10422 hdr->supported_class = 0; 10423 10424 ctl_set_success(ctsio); 10425 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10426 ctsio->be_move_done = ctl_config_move_done; 10427 ctl_datamove((union ctl_io *)ctsio); 10428 return (CTL_RETVAL_COMPLETE); 10429} 10430 10431int 10432ctl_mechanism_status(struct ctl_scsiio *ctsio) 10433{ 10434 struct scsi_mechanism_status_header *hdr; 10435 struct scsi_mechanism_status *cdb; 10436 uint32_t alloc_len, data_len; 10437 10438 cdb = (struct scsi_mechanism_status *)ctsio->cdb; 10439 alloc_len = scsi_2btoul(cdb->length); 10440 10441 data_len = sizeof(struct scsi_mechanism_status_header); 10442 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10443 ctsio->kern_sg_entries = 0; 10444 ctsio->kern_rel_offset = 0; 10445 ctsio->kern_data_len = min(data_len, alloc_len); 10446 ctsio->kern_total_len = ctsio->kern_data_len; 10447 10448 hdr = (struct scsi_mechanism_status_header *)ctsio->kern_data_ptr; 10449 hdr->state1 = 0x00; 10450 hdr->state2 = 0xe0; 10451 scsi_ulto3b(0, hdr->lba); 10452 hdr->slots_num = 0; 10453 scsi_ulto2b(0, hdr->slots_length); 10454 10455 ctl_set_success(ctsio); 10456 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10457 ctsio->be_move_done = ctl_config_move_done; 10458 ctl_datamove((union ctl_io *)ctsio); 10459 return (CTL_RETVAL_COMPLETE); 10460} 10461 10462static void 10463ctl_ultomsf(uint32_t lba, uint8_t *buf) 10464{ 10465 10466 lba += 150; 10467 buf[0] = 0; 10468 buf[1] = bin2bcd((lba / 75) / 60); 10469 buf[2] = bin2bcd((lba / 75) % 60); 10470 buf[3] = bin2bcd(lba % 75); 10471} 10472 10473int 10474ctl_read_toc(struct ctl_scsiio *ctsio) 10475{ 10476 struct ctl_lun *lun = CTL_LUN(ctsio); 10477 struct scsi_read_toc_hdr *hdr; 10478 struct scsi_read_toc_type01_descr *descr; 10479 struct scsi_read_toc *cdb; 10480 uint32_t alloc_len, data_len; 10481 int format, msf; 10482 10483 cdb = (struct scsi_read_toc *)ctsio->cdb; 10484 msf = (cdb->byte2 & CD_MSF) != 0; 10485 format = cdb->format; 10486 alloc_len = scsi_2btoul(cdb->data_len); 10487 10488 data_len = sizeof(struct scsi_read_toc_hdr); 10489 if (format == 0) 10490 data_len += 2 * sizeof(struct scsi_read_toc_type01_descr); 10491 else 10492 data_len += sizeof(struct scsi_read_toc_type01_descr); 10493 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10494 ctsio->kern_sg_entries = 0; 10495 ctsio->kern_rel_offset = 0; 10496 ctsio->kern_data_len = min(data_len, alloc_len); 10497 ctsio->kern_total_len = ctsio->kern_data_len; 10498 10499 hdr = (struct scsi_read_toc_hdr *)ctsio->kern_data_ptr; 10500 if (format == 0) { 10501 scsi_ulto2b(0x12, hdr->data_length); 10502 hdr->first = 1; 10503 hdr->last = 1; 10504 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10505 descr->addr_ctl = 0x14; 10506 descr->track_number = 1; 10507 if (msf) 10508 ctl_ultomsf(0, descr->track_start); 10509 else 10510 scsi_ulto4b(0, descr->track_start); 10511 descr++; 10512 descr->addr_ctl = 0x14; 10513 descr->track_number = 0xaa; 10514 if (msf) 10515 ctl_ultomsf(lun->be_lun->maxlba+1, descr->track_start); 10516 else 10517 scsi_ulto4b(lun->be_lun->maxlba+1, descr->track_start); 10518 } else { 10519 scsi_ulto2b(0x0a, hdr->data_length); 10520 hdr->first = 1; 10521 hdr->last = 1; 10522 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10523 descr->addr_ctl = 0x14; 10524 descr->track_number = 1; 10525 if (msf) 10526 ctl_ultomsf(0, descr->track_start); 10527 else 10528 scsi_ulto4b(0, descr->track_start); 10529 } 10530 10531 ctl_set_success(ctsio); 10532 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10533 ctsio->be_move_done = ctl_config_move_done; 10534 ctl_datamove((union ctl_io *)ctsio); 10535 return (CTL_RETVAL_COMPLETE); 10536} 10537 10538/* 10539 * For known CDB types, parse the LBA and length. 10540 */ 10541static int 10542ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10543{ 10544 if (io->io_hdr.io_type != CTL_IO_SCSI) 10545 return (1); 10546 10547 switch (io->scsiio.cdb[0]) { 10548 case COMPARE_AND_WRITE: { 10549 struct scsi_compare_and_write *cdb; 10550 10551 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10552 10553 *lba = scsi_8btou64(cdb->addr); 10554 *len = cdb->length; 10555 break; 10556 } 10557 case READ_6: 10558 case WRITE_6: { 10559 struct scsi_rw_6 *cdb; 10560 10561 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10562 10563 *lba = scsi_3btoul(cdb->addr); 10564 /* only 5 bits are valid in the most significant address byte */ 10565 *lba &= 0x1fffff; 10566 *len = cdb->length; 10567 break; 10568 } 10569 case READ_10: 10570 case WRITE_10: { 10571 struct scsi_rw_10 *cdb; 10572 10573 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10574 10575 *lba = scsi_4btoul(cdb->addr); 10576 *len = scsi_2btoul(cdb->length); 10577 break; 10578 } 10579 case WRITE_VERIFY_10: { 10580 struct scsi_write_verify_10 *cdb; 10581 10582 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10583 10584 *lba = scsi_4btoul(cdb->addr); 10585 *len = scsi_2btoul(cdb->length); 10586 break; 10587 } 10588 case READ_12: 10589 case WRITE_12: { 10590 struct scsi_rw_12 *cdb; 10591 10592 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10593 10594 *lba = scsi_4btoul(cdb->addr); 10595 *len = scsi_4btoul(cdb->length); 10596 break; 10597 } 10598 case WRITE_VERIFY_12: { 10599 struct scsi_write_verify_12 *cdb; 10600 10601 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10602 10603 *lba = scsi_4btoul(cdb->addr); 10604 *len = scsi_4btoul(cdb->length); 10605 break; 10606 } 10607 case READ_16: 10608 case WRITE_16: { 10609 struct scsi_rw_16 *cdb; 10610 10611 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10612 10613 *lba = scsi_8btou64(cdb->addr); 10614 *len = scsi_4btoul(cdb->length); 10615 break; 10616 } 10617 case WRITE_ATOMIC_16: { 10618 struct scsi_write_atomic_16 *cdb; 10619 10620 cdb = (struct scsi_write_atomic_16 *)io->scsiio.cdb; 10621 10622 *lba = scsi_8btou64(cdb->addr); 10623 *len = scsi_2btoul(cdb->length); 10624 break; 10625 } 10626 case WRITE_VERIFY_16: { 10627 struct scsi_write_verify_16 *cdb; 10628 10629 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10630 10631 *lba = scsi_8btou64(cdb->addr); 10632 *len = scsi_4btoul(cdb->length); 10633 break; 10634 } 10635 case WRITE_SAME_10: { 10636 struct scsi_write_same_10 *cdb; 10637 10638 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10639 10640 *lba = scsi_4btoul(cdb->addr); 10641 *len = scsi_2btoul(cdb->length); 10642 break; 10643 } 10644 case WRITE_SAME_16: { 10645 struct scsi_write_same_16 *cdb; 10646 10647 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10648 10649 *lba = scsi_8btou64(cdb->addr); 10650 *len = scsi_4btoul(cdb->length); 10651 break; 10652 } 10653 case VERIFY_10: { 10654 struct scsi_verify_10 *cdb; 10655 10656 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10657 10658 *lba = scsi_4btoul(cdb->addr); 10659 *len = scsi_2btoul(cdb->length); 10660 break; 10661 } 10662 case VERIFY_12: { 10663 struct scsi_verify_12 *cdb; 10664 10665 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10666 10667 *lba = scsi_4btoul(cdb->addr); 10668 *len = scsi_4btoul(cdb->length); 10669 break; 10670 } 10671 case VERIFY_16: { 10672 struct scsi_verify_16 *cdb; 10673 10674 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10675 10676 *lba = scsi_8btou64(cdb->addr); 10677 *len = scsi_4btoul(cdb->length); 10678 break; 10679 } 10680 case UNMAP: { 10681 *lba = 0; 10682 *len = UINT64_MAX; 10683 break; 10684 } 10685 case SERVICE_ACTION_IN: { /* GET LBA STATUS */ 10686 struct scsi_get_lba_status *cdb; 10687 10688 cdb = (struct scsi_get_lba_status *)io->scsiio.cdb; 10689 *lba = scsi_8btou64(cdb->addr); 10690 *len = UINT32_MAX; 10691 break; 10692 } 10693 default: 10694 return (1); 10695 break; /* NOTREACHED */ 10696 } 10697 10698 return (0); 10699} 10700 10701static ctl_action 10702ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2, 10703 bool seq) 10704{ 10705 uint64_t endlba1, endlba2; 10706 10707 endlba1 = lba1 + len1 - (seq ? 0 : 1); 10708 endlba2 = lba2 + len2 - 1; 10709 10710 if ((endlba1 < lba2) || (endlba2 < lba1)) 10711 return (CTL_ACTION_PASS); 10712 else 10713 return (CTL_ACTION_BLOCK); 10714} 10715 10716static int 10717ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10718{ 10719 struct ctl_ptr_len_flags *ptrlen; 10720 struct scsi_unmap_desc *buf, *end, *range; 10721 uint64_t lba; 10722 uint32_t len; 10723 10724 /* If not UNMAP -- go other way. */ 10725 if (io->io_hdr.io_type != CTL_IO_SCSI || 10726 io->scsiio.cdb[0] != UNMAP) 10727 return (CTL_ACTION_ERROR); 10728 10729 /* If UNMAP without data -- block and wait for data. */ 10730 ptrlen = (struct ctl_ptr_len_flags *) 10731 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10732 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10733 ptrlen->ptr == NULL) 10734 return (CTL_ACTION_BLOCK); 10735 10736 /* UNMAP with data -- check for collision. */ 10737 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10738 end = buf + ptrlen->len / sizeof(*buf); 10739 for (range = buf; range < end; range++) { 10740 lba = scsi_8btou64(range->lba); 10741 len = scsi_4btoul(range->length); 10742 if ((lba < lba2 + len2) && (lba + len > lba2)) 10743 return (CTL_ACTION_BLOCK); 10744 } 10745 return (CTL_ACTION_PASS); 10746} 10747 10748static ctl_action 10749ctl_extent_check(union ctl_io *io1, union ctl_io *io2, bool seq) 10750{ 10751 uint64_t lba1, lba2; 10752 uint64_t len1, len2; 10753 int retval; 10754 10755 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10756 return (CTL_ACTION_ERROR); 10757 10758 retval = ctl_extent_check_unmap(io1, lba2, len2); 10759 if (retval != CTL_ACTION_ERROR) 10760 return (retval); 10761 10762 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10763 return (CTL_ACTION_ERROR); 10764 10765 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10766 seq = FALSE; 10767 return (ctl_extent_check_lba(lba1, len1, lba2, len2, seq)); 10768} 10769 10770static ctl_action 10771ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2) 10772{ 10773 uint64_t lba1, lba2; 10774 uint64_t len1, len2; 10775 10776 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10777 return (CTL_ACTION_PASS); 10778 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10779 return (CTL_ACTION_ERROR); 10780 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10781 return (CTL_ACTION_ERROR); 10782 10783 if (lba1 + len1 == lba2) 10784 return (CTL_ACTION_BLOCK); 10785 return (CTL_ACTION_PASS); 10786} 10787 10788static ctl_action 10789ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10790 union ctl_io *ooa_io) 10791{ 10792 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10793 const ctl_serialize_action *serialize_row; 10794 10795 /* 10796 * The initiator attempted multiple untagged commands at the same 10797 * time. Can't do that. 10798 */ 10799 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10800 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10801 && ((pending_io->io_hdr.nexus.targ_port == 10802 ooa_io->io_hdr.nexus.targ_port) 10803 && (pending_io->io_hdr.nexus.initid == 10804 ooa_io->io_hdr.nexus.initid)) 10805 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10806 CTL_FLAG_STATUS_SENT)) == 0)) 10807 return (CTL_ACTION_OVERLAP); 10808 10809 /* 10810 * The initiator attempted to send multiple tagged commands with 10811 * the same ID. (It's fine if different initiators have the same 10812 * tag ID.) 10813 * 10814 * Even if all of those conditions are true, we don't kill the I/O 10815 * if the command ahead of us has been aborted. We won't end up 10816 * sending it to the FETD, and it's perfectly legal to resend a 10817 * command with the same tag number as long as the previous 10818 * instance of this tag number has been aborted somehow. 10819 */ 10820 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10821 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10822 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10823 && ((pending_io->io_hdr.nexus.targ_port == 10824 ooa_io->io_hdr.nexus.targ_port) 10825 && (pending_io->io_hdr.nexus.initid == 10826 ooa_io->io_hdr.nexus.initid)) 10827 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10828 CTL_FLAG_STATUS_SENT)) == 0)) 10829 return (CTL_ACTION_OVERLAP_TAG); 10830 10831 /* 10832 * If we get a head of queue tag, SAM-3 says that we should 10833 * immediately execute it. 10834 * 10835 * What happens if this command would normally block for some other 10836 * reason? e.g. a request sense with a head of queue tag 10837 * immediately after a write. Normally that would block, but this 10838 * will result in its getting executed immediately... 10839 * 10840 * We currently return "pass" instead of "skip", so we'll end up 10841 * going through the rest of the queue to check for overlapped tags. 10842 * 10843 * XXX KDM check for other types of blockage first?? 10844 */ 10845 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10846 return (CTL_ACTION_PASS); 10847 10848 /* 10849 * Ordered tags have to block until all items ahead of them 10850 * have completed. If we get called with an ordered tag, we always 10851 * block, if something else is ahead of us in the queue. 10852 */ 10853 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10854 return (CTL_ACTION_BLOCK); 10855 10856 /* 10857 * Simple tags get blocked until all head of queue and ordered tags 10858 * ahead of them have completed. I'm lumping untagged commands in 10859 * with simple tags here. XXX KDM is that the right thing to do? 10860 */ 10861 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10862 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10863 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10864 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10865 return (CTL_ACTION_BLOCK); 10866 10867 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 10868 KASSERT(pending_entry->seridx < CTL_SERIDX_COUNT, 10869 ("%s: Invalid seridx %d for pending CDB %02x %02x @ %p", 10870 __func__, pending_entry->seridx, pending_io->scsiio.cdb[0], 10871 pending_io->scsiio.cdb[1], pending_io)); 10872 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 10873 if (ooa_entry->seridx == CTL_SERIDX_INVLD) 10874 return (CTL_ACTION_PASS); /* Unsupported command in OOA queue */ 10875 KASSERT(ooa_entry->seridx < CTL_SERIDX_COUNT, 10876 ("%s: Invalid seridx %d for ooa CDB %02x %02x @ %p", 10877 __func__, ooa_entry->seridx, ooa_io->scsiio.cdb[0], 10878 ooa_io->scsiio.cdb[1], ooa_io)); 10879 10880 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 10881 10882 switch (serialize_row[pending_entry->seridx]) { 10883 case CTL_SER_BLOCK: 10884 return (CTL_ACTION_BLOCK); 10885 case CTL_SER_EXTENT: 10886 return (ctl_extent_check(ooa_io, pending_io, 10887 (lun->be_lun && lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 10888 case CTL_SER_EXTENTOPT: 10889 if ((lun->MODE_CTRL.queue_flags & SCP_QUEUE_ALG_MASK) != 10890 SCP_QUEUE_ALG_UNRESTRICTED) 10891 return (ctl_extent_check(ooa_io, pending_io, 10892 (lun->be_lun && 10893 lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 10894 return (CTL_ACTION_PASS); 10895 case CTL_SER_EXTENTSEQ: 10896 if (lun->be_lun && lun->be_lun->serseq != CTL_LUN_SERSEQ_OFF) 10897 return (ctl_extent_check_seq(ooa_io, pending_io)); 10898 return (CTL_ACTION_PASS); 10899 case CTL_SER_PASS: 10900 return (CTL_ACTION_PASS); 10901 case CTL_SER_BLOCKOPT: 10902 if ((lun->MODE_CTRL.queue_flags & SCP_QUEUE_ALG_MASK) != 10903 SCP_QUEUE_ALG_UNRESTRICTED) 10904 return (CTL_ACTION_BLOCK); 10905 return (CTL_ACTION_PASS); 10906 case CTL_SER_SKIP: 10907 return (CTL_ACTION_SKIP); 10908 default: 10909 panic("%s: Invalid serialization value %d for %d => %d", 10910 __func__, serialize_row[pending_entry->seridx], 10911 pending_entry->seridx, ooa_entry->seridx); 10912 } 10913 10914 return (CTL_ACTION_ERROR); 10915} 10916 10917/* 10918 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 10919 * Assumptions: 10920 * - pending_io is generally either incoming, or on the blocked queue 10921 * - starting I/O is the I/O we want to start the check with. 10922 */ 10923static ctl_action 10924ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 10925 union ctl_io *starting_io) 10926{ 10927 union ctl_io *ooa_io; 10928 ctl_action action; 10929 10930 mtx_assert(&lun->lun_lock, MA_OWNED); 10931 10932 /* 10933 * Run back along the OOA queue, starting with the current 10934 * blocked I/O and going through every I/O before it on the 10935 * queue. If starting_io is NULL, we'll just end up returning 10936 * CTL_ACTION_PASS. 10937 */ 10938 for (ooa_io = starting_io; ooa_io != NULL; 10939 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 10940 ooa_links)){ 10941 10942 /* 10943 * This routine just checks to see whether 10944 * cur_blocked is blocked by ooa_io, which is ahead 10945 * of it in the queue. It doesn't queue/dequeue 10946 * cur_blocked. 10947 */ 10948 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 10949 switch (action) { 10950 case CTL_ACTION_BLOCK: 10951 case CTL_ACTION_OVERLAP: 10952 case CTL_ACTION_OVERLAP_TAG: 10953 case CTL_ACTION_SKIP: 10954 case CTL_ACTION_ERROR: 10955 return (action); 10956 break; /* NOTREACHED */ 10957 case CTL_ACTION_PASS: 10958 break; 10959 default: 10960 panic("%s: Invalid action %d\n", __func__, action); 10961 } 10962 } 10963 10964 return (CTL_ACTION_PASS); 10965} 10966 10967/* 10968 * Assumptions: 10969 * - An I/O has just completed, and has been removed from the per-LUN OOA 10970 * queue, so some items on the blocked queue may now be unblocked. 10971 */ 10972static int 10973ctl_check_blocked(struct ctl_lun *lun) 10974{ 10975 struct ctl_softc *softc = lun->ctl_softc; 10976 union ctl_io *cur_blocked, *next_blocked; 10977 10978 mtx_assert(&lun->lun_lock, MA_OWNED); 10979 10980 /* 10981 * Run forward from the head of the blocked queue, checking each 10982 * entry against the I/Os prior to it on the OOA queue to see if 10983 * there is still any blockage. 10984 * 10985 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 10986 * with our removing a variable on it while it is traversing the 10987 * list. 10988 */ 10989 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 10990 cur_blocked != NULL; cur_blocked = next_blocked) { 10991 union ctl_io *prev_ooa; 10992 ctl_action action; 10993 10994 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 10995 blocked_links); 10996 10997 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 10998 ctl_ooaq, ooa_links); 10999 11000 /* 11001 * If cur_blocked happens to be the first item in the OOA 11002 * queue now, prev_ooa will be NULL, and the action 11003 * returned will just be CTL_ACTION_PASS. 11004 */ 11005 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11006 11007 switch (action) { 11008 case CTL_ACTION_BLOCK: 11009 /* Nothing to do here, still blocked */ 11010 break; 11011 case CTL_ACTION_OVERLAP: 11012 case CTL_ACTION_OVERLAP_TAG: 11013 /* 11014 * This shouldn't happen! In theory we've already 11015 * checked this command for overlap... 11016 */ 11017 break; 11018 case CTL_ACTION_PASS: 11019 case CTL_ACTION_SKIP: { 11020 const struct ctl_cmd_entry *entry; 11021 11022 /* 11023 * The skip case shouldn't happen, this transaction 11024 * should have never made it onto the blocked queue. 11025 */ 11026 /* 11027 * This I/O is no longer blocked, we can remove it 11028 * from the blocked queue. Since this is a TAILQ 11029 * (doubly linked list), we can do O(1) removals 11030 * from any place on the list. 11031 */ 11032 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11033 blocked_links); 11034 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11035 11036 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 11037 (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)){ 11038 /* 11039 * Need to send IO back to original side to 11040 * run 11041 */ 11042 union ctl_ha_msg msg_info; 11043 11044 cur_blocked->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11045 msg_info.hdr.original_sc = 11046 cur_blocked->io_hdr.remote_io; 11047 msg_info.hdr.serializing_sc = cur_blocked; 11048 msg_info.hdr.msg_type = CTL_MSG_R2R; 11049 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11050 sizeof(msg_info.hdr), M_NOWAIT); 11051 break; 11052 } 11053 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11054 11055 /* 11056 * Check this I/O for LUN state changes that may 11057 * have happened while this command was blocked. 11058 * The LUN state may have been changed by a command 11059 * ahead of us in the queue, so we need to re-check 11060 * for any states that can be caused by SCSI 11061 * commands. 11062 */ 11063 if (ctl_scsiio_lun_check(lun, entry, 11064 &cur_blocked->scsiio) == 0) { 11065 cur_blocked->io_hdr.flags |= 11066 CTL_FLAG_IS_WAS_ON_RTR; 11067 ctl_enqueue_rtr(cur_blocked); 11068 } else 11069 ctl_done(cur_blocked); 11070 break; 11071 } 11072 default: 11073 /* 11074 * This probably shouldn't happen -- we shouldn't 11075 * get CTL_ACTION_ERROR, or anything else. 11076 */ 11077 break; 11078 } 11079 } 11080 11081 return (CTL_RETVAL_COMPLETE); 11082} 11083 11084/* 11085 * This routine (with one exception) checks LUN flags that can be set by 11086 * commands ahead of us in the OOA queue. These flags have to be checked 11087 * when a command initially comes in, and when we pull a command off the 11088 * blocked queue and are preparing to execute it. The reason we have to 11089 * check these flags for commands on the blocked queue is that the LUN 11090 * state may have been changed by a command ahead of us while we're on the 11091 * blocked queue. 11092 * 11093 * Ordering is somewhat important with these checks, so please pay 11094 * careful attention to the placement of any new checks. 11095 */ 11096static int 11097ctl_scsiio_lun_check(struct ctl_lun *lun, 11098 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11099{ 11100 struct ctl_softc *softc = lun->ctl_softc; 11101 int retval; 11102 uint32_t residx; 11103 11104 retval = 0; 11105 11106 mtx_assert(&lun->lun_lock, MA_OWNED); 11107 11108 /* 11109 * If this shelf is a secondary shelf controller, we may have to 11110 * reject some commands disallowed by HA mode and link state. 11111 */ 11112 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11113 if (softc->ha_link == CTL_HA_LINK_OFFLINE && 11114 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11115 ctl_set_lun_unavail(ctsio); 11116 retval = 1; 11117 goto bailout; 11118 } 11119 if ((lun->flags & CTL_LUN_PEER_SC_PRIMARY) == 0 && 11120 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11121 ctl_set_lun_transit(ctsio); 11122 retval = 1; 11123 goto bailout; 11124 } 11125 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY && 11126 (entry->flags & CTL_CMD_FLAG_OK_ON_STANDBY) == 0) { 11127 ctl_set_lun_standby(ctsio); 11128 retval = 1; 11129 goto bailout; 11130 } 11131 11132 /* The rest of checks are only done on executing side */ 11133 if (softc->ha_mode == CTL_HA_MODE_XFER) 11134 goto bailout; 11135 } 11136 11137 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11138 if (lun->be_lun && 11139 lun->be_lun->flags & CTL_LUN_FLAG_READONLY) { 11140 ctl_set_hw_write_protected(ctsio); 11141 retval = 1; 11142 goto bailout; 11143 } 11144 if ((lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) { 11145 ctl_set_sense(ctsio, /*current_error*/ 1, 11146 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11147 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11148 retval = 1; 11149 goto bailout; 11150 } 11151 } 11152 11153 /* 11154 * Check for a reservation conflict. If this command isn't allowed 11155 * even on reserved LUNs, and if this initiator isn't the one who 11156 * reserved us, reject the command with a reservation conflict. 11157 */ 11158 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11159 if ((lun->flags & CTL_LUN_RESERVED) 11160 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11161 if (lun->res_idx != residx) { 11162 ctl_set_reservation_conflict(ctsio); 11163 retval = 1; 11164 goto bailout; 11165 } 11166 } 11167 11168 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11169 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11170 /* No reservation or command is allowed. */; 11171 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11172 (lun->pr_res_type == SPR_TYPE_WR_EX || 11173 lun->pr_res_type == SPR_TYPE_WR_EX_RO || 11174 lun->pr_res_type == SPR_TYPE_WR_EX_AR)) { 11175 /* The command is allowed for Write Exclusive resv. */; 11176 } else { 11177 /* 11178 * if we aren't registered or it's a res holder type 11179 * reservation and this isn't the res holder then set a 11180 * conflict. 11181 */ 11182 if (ctl_get_prkey(lun, residx) == 0 || 11183 (residx != lun->pr_res_idx && lun->pr_res_type < 4)) { 11184 ctl_set_reservation_conflict(ctsio); 11185 retval = 1; 11186 goto bailout; 11187 } 11188 } 11189 11190 if ((entry->flags & CTL_CMD_FLAG_OK_ON_NO_MEDIA) == 0) { 11191 if (lun->flags & CTL_LUN_EJECTED) 11192 ctl_set_lun_ejected(ctsio); 11193 else if (lun->flags & CTL_LUN_NO_MEDIA) { 11194 if (lun->flags & CTL_LUN_REMOVABLE) 11195 ctl_set_lun_no_media(ctsio); 11196 else 11197 ctl_set_lun_int_reqd(ctsio); 11198 } else if (lun->flags & CTL_LUN_STOPPED) 11199 ctl_set_lun_stopped(ctsio); 11200 else 11201 goto bailout; 11202 retval = 1; 11203 goto bailout; 11204 } 11205 11206bailout: 11207 return (retval); 11208} 11209 11210static void 11211ctl_failover_io(union ctl_io *io, int have_lock) 11212{ 11213 ctl_set_busy(&io->scsiio); 11214 ctl_done(io); 11215} 11216 11217static void 11218ctl_failover_lun(union ctl_io *rio) 11219{ 11220 struct ctl_softc *softc = CTL_SOFTC(rio); 11221 struct ctl_lun *lun; 11222 struct ctl_io_hdr *io, *next_io; 11223 uint32_t targ_lun; 11224 11225 targ_lun = rio->io_hdr.nexus.targ_mapped_lun; 11226 CTL_DEBUG_PRINT(("FAILOVER for lun %ju\n", targ_lun)); 11227 11228 /* Find and lock the LUN. */ 11229 mtx_lock(&softc->ctl_lock); 11230 if (targ_lun > ctl_max_luns || 11231 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11232 mtx_unlock(&softc->ctl_lock); 11233 return; 11234 } 11235 mtx_lock(&lun->lun_lock); 11236 mtx_unlock(&softc->ctl_lock); 11237 if (lun->flags & CTL_LUN_DISABLED) { 11238 mtx_unlock(&lun->lun_lock); 11239 return; 11240 } 11241 11242 if (softc->ha_mode == CTL_HA_MODE_XFER) { 11243 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11244 /* We are master */ 11245 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11246 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11247 io->flags |= CTL_FLAG_ABORT; 11248 io->flags |= CTL_FLAG_FAILOVER; 11249 } else { /* This can be only due to DATAMOVE */ 11250 io->msg_type = CTL_MSG_DATAMOVE_DONE; 11251 io->flags &= ~CTL_FLAG_DMA_INPROG; 11252 io->flags |= CTL_FLAG_IO_ACTIVE; 11253 io->port_status = 31340; 11254 ctl_enqueue_isc((union ctl_io *)io); 11255 } 11256 } 11257 /* We are slave */ 11258 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11259 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11260 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11261 io->flags |= CTL_FLAG_FAILOVER; 11262 } else { 11263 ctl_set_busy(&((union ctl_io *)io)-> 11264 scsiio); 11265 ctl_done((union ctl_io *)io); 11266 } 11267 } 11268 } 11269 } else { /* SERIALIZE modes */ 11270 TAILQ_FOREACH_SAFE(io, &lun->blocked_queue, blocked_links, 11271 next_io) { 11272 /* We are master */ 11273 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11274 TAILQ_REMOVE(&lun->blocked_queue, io, 11275 blocked_links); 11276 io->flags &= ~CTL_FLAG_BLOCKED; 11277 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11278 ctl_free_io((union ctl_io *)io); 11279 } 11280 } 11281 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11282 /* We are master */ 11283 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11284 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11285 ctl_free_io((union ctl_io *)io); 11286 } 11287 /* We are slave */ 11288 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11289 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11290 if (!(io->flags & CTL_FLAG_IO_ACTIVE)) { 11291 ctl_set_busy(&((union ctl_io *)io)-> 11292 scsiio); 11293 ctl_done((union ctl_io *)io); 11294 } 11295 } 11296 } 11297 ctl_check_blocked(lun); 11298 } 11299 mtx_unlock(&lun->lun_lock); 11300} 11301 11302static int 11303ctl_scsiio_precheck(struct ctl_softc *softc, struct ctl_scsiio *ctsio) 11304{ 11305 struct ctl_lun *lun; 11306 const struct ctl_cmd_entry *entry; 11307 uint32_t initidx, targ_lun; 11308 int retval = 0; 11309 11310 lun = NULL; 11311 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11312 if (targ_lun < ctl_max_luns) 11313 lun = softc->ctl_luns[targ_lun]; 11314 if (lun) { 11315 /* 11316 * If the LUN is invalid, pretend that it doesn't exist. 11317 * It will go away as soon as all pending I/O has been 11318 * completed. 11319 */ 11320 mtx_lock(&lun->lun_lock); 11321 if (lun->flags & CTL_LUN_DISABLED) { 11322 mtx_unlock(&lun->lun_lock); 11323 lun = NULL; 11324 } 11325 } 11326 CTL_LUN(ctsio) = lun; 11327 if (lun) { 11328 CTL_BACKEND_LUN(ctsio) = lun->be_lun; 11329 11330 /* 11331 * Every I/O goes into the OOA queue for a particular LUN, 11332 * and stays there until completion. 11333 */ 11334#ifdef CTL_TIME_IO 11335 if (TAILQ_EMPTY(&lun->ooa_queue)) 11336 lun->idle_time += getsbinuptime() - lun->last_busy; 11337#endif 11338 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 11339 } 11340 11341 /* Get command entry and return error if it is unsuppotyed. */ 11342 entry = ctl_validate_command(ctsio); 11343 if (entry == NULL) { 11344 if (lun) 11345 mtx_unlock(&lun->lun_lock); 11346 return (retval); 11347 } 11348 11349 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11350 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11351 11352 /* 11353 * Check to see whether we can send this command to LUNs that don't 11354 * exist. This should pretty much only be the case for inquiry 11355 * and request sense. Further checks, below, really require having 11356 * a LUN, so we can't really check the command anymore. Just put 11357 * it on the rtr queue. 11358 */ 11359 if (lun == NULL) { 11360 if (entry->flags & CTL_CMD_FLAG_OK_ON_NO_LUN) { 11361 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11362 ctl_enqueue_rtr((union ctl_io *)ctsio); 11363 return (retval); 11364 } 11365 11366 ctl_set_unsupported_lun(ctsio); 11367 ctl_done((union ctl_io *)ctsio); 11368 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11369 return (retval); 11370 } else { 11371 /* 11372 * Make sure we support this particular command on this LUN. 11373 * e.g., we don't support writes to the control LUN. 11374 */ 11375 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11376 mtx_unlock(&lun->lun_lock); 11377 ctl_set_invalid_opcode(ctsio); 11378 ctl_done((union ctl_io *)ctsio); 11379 return (retval); 11380 } 11381 } 11382 11383 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11384 11385 /* 11386 * If we've got a request sense, it'll clear the contingent 11387 * allegiance condition. Otherwise, if we have a CA condition for 11388 * this initiator, clear it, because it sent down a command other 11389 * than request sense. 11390 */ 11391 if (ctsio->cdb[0] != REQUEST_SENSE) { 11392 struct scsi_sense_data *ps; 11393 11394 ps = lun->pending_sense[initidx / CTL_MAX_INIT_PER_PORT]; 11395 if (ps != NULL) 11396 ps[initidx % CTL_MAX_INIT_PER_PORT].error_code = 0; 11397 } 11398 11399 /* 11400 * If the command has this flag set, it handles its own unit 11401 * attention reporting, we shouldn't do anything. Otherwise we 11402 * check for any pending unit attentions, and send them back to the 11403 * initiator. We only do this when a command initially comes in, 11404 * not when we pull it off the blocked queue. 11405 * 11406 * According to SAM-3, section 5.3.2, the order that things get 11407 * presented back to the host is basically unit attentions caused 11408 * by some sort of reset event, busy status, reservation conflicts 11409 * or task set full, and finally any other status. 11410 * 11411 * One issue here is that some of the unit attentions we report 11412 * don't fall into the "reset" category (e.g. "reported luns data 11413 * has changed"). So reporting it here, before the reservation 11414 * check, may be technically wrong. I guess the only thing to do 11415 * would be to check for and report the reset events here, and then 11416 * check for the other unit attention types after we check for a 11417 * reservation conflict. 11418 * 11419 * XXX KDM need to fix this 11420 */ 11421 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11422 ctl_ua_type ua_type; 11423 u_int sense_len = 0; 11424 11425 ua_type = ctl_build_ua(lun, initidx, &ctsio->sense_data, 11426 &sense_len, SSD_TYPE_NONE); 11427 if (ua_type != CTL_UA_NONE) { 11428 mtx_unlock(&lun->lun_lock); 11429 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11430 ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 11431 ctsio->sense_len = sense_len; 11432 ctl_done((union ctl_io *)ctsio); 11433 return (retval); 11434 } 11435 } 11436 11437 11438 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 11439 mtx_unlock(&lun->lun_lock); 11440 ctl_done((union ctl_io *)ctsio); 11441 return (retval); 11442 } 11443 11444 /* 11445 * XXX CHD this is where we want to send IO to other side if 11446 * this LUN is secondary on this SC. We will need to make a copy 11447 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11448 * the copy we send as FROM_OTHER. 11449 * We also need to stuff the address of the original IO so we can 11450 * find it easily. Something similar will need be done on the other 11451 * side so when we are done we can find the copy. 11452 */ 11453 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 11454 (lun->flags & CTL_LUN_PEER_SC_PRIMARY) != 0 && 11455 (entry->flags & CTL_CMD_FLAG_RUN_HERE) == 0) { 11456 union ctl_ha_msg msg_info; 11457 int isc_retval; 11458 11459 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11460 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11461 mtx_unlock(&lun->lun_lock); 11462 11463 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11464 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11465 msg_info.hdr.serializing_sc = NULL; 11466 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11467 msg_info.scsi.tag_num = ctsio->tag_num; 11468 msg_info.scsi.tag_type = ctsio->tag_type; 11469 msg_info.scsi.cdb_len = ctsio->cdb_len; 11470 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11471 11472 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11473 sizeof(msg_info.scsi) - sizeof(msg_info.scsi.sense_data), 11474 M_WAITOK)) > CTL_HA_STATUS_SUCCESS) { 11475 ctl_set_busy(ctsio); 11476 ctl_done((union ctl_io *)ctsio); 11477 return (retval); 11478 } 11479 return (retval); 11480 } 11481 11482 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11483 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11484 ctl_ooaq, ooa_links))) { 11485 case CTL_ACTION_BLOCK: 11486 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11487 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11488 blocked_links); 11489 mtx_unlock(&lun->lun_lock); 11490 return (retval); 11491 case CTL_ACTION_PASS: 11492 case CTL_ACTION_SKIP: 11493 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11494 mtx_unlock(&lun->lun_lock); 11495 ctl_enqueue_rtr((union ctl_io *)ctsio); 11496 break; 11497 case CTL_ACTION_OVERLAP: 11498 mtx_unlock(&lun->lun_lock); 11499 ctl_set_overlapped_cmd(ctsio); 11500 ctl_done((union ctl_io *)ctsio); 11501 break; 11502 case CTL_ACTION_OVERLAP_TAG: 11503 mtx_unlock(&lun->lun_lock); 11504 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11505 ctl_done((union ctl_io *)ctsio); 11506 break; 11507 case CTL_ACTION_ERROR: 11508 default: 11509 mtx_unlock(&lun->lun_lock); 11510 ctl_set_internal_failure(ctsio, 11511 /*sks_valid*/ 0, 11512 /*retry_count*/ 0); 11513 ctl_done((union ctl_io *)ctsio); 11514 break; 11515 } 11516 return (retval); 11517} 11518 11519const struct ctl_cmd_entry * 11520ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11521{ 11522 const struct ctl_cmd_entry *entry; 11523 int service_action; 11524 11525 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11526 if (sa) 11527 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11528 if (entry->flags & CTL_CMD_FLAG_SA5) { 11529 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11530 entry = &((const struct ctl_cmd_entry *) 11531 entry->execute)[service_action]; 11532 } 11533 return (entry); 11534} 11535 11536const struct ctl_cmd_entry * 11537ctl_validate_command(struct ctl_scsiio *ctsio) 11538{ 11539 const struct ctl_cmd_entry *entry; 11540 int i, sa; 11541 uint8_t diff; 11542 11543 entry = ctl_get_cmd_entry(ctsio, &sa); 11544 if (entry->execute == NULL) { 11545 if (sa) 11546 ctl_set_invalid_field(ctsio, 11547 /*sks_valid*/ 1, 11548 /*command*/ 1, 11549 /*field*/ 1, 11550 /*bit_valid*/ 1, 11551 /*bit*/ 4); 11552 else 11553 ctl_set_invalid_opcode(ctsio); 11554 ctl_done((union ctl_io *)ctsio); 11555 return (NULL); 11556 } 11557 KASSERT(entry->length > 0, 11558 ("Not defined length for command 0x%02x/0x%02x", 11559 ctsio->cdb[0], ctsio->cdb[1])); 11560 for (i = 1; i < entry->length; i++) { 11561 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11562 if (diff == 0) 11563 continue; 11564 ctl_set_invalid_field(ctsio, 11565 /*sks_valid*/ 1, 11566 /*command*/ 1, 11567 /*field*/ i, 11568 /*bit_valid*/ 1, 11569 /*bit*/ fls(diff) - 1); 11570 ctl_done((union ctl_io *)ctsio); 11571 return (NULL); 11572 } 11573 return (entry); 11574} 11575 11576static int 11577ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11578{ 11579 11580 switch (lun_type) { 11581 case T_DIRECT: 11582 if ((entry->flags & CTL_CMD_FLAG_OK_ON_DIRECT) == 0) 11583 return (0); 11584 break; 11585 case T_PROCESSOR: 11586 if ((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) 11587 return (0); 11588 break; 11589 case T_CDROM: 11590 if ((entry->flags & CTL_CMD_FLAG_OK_ON_CDROM) == 0) 11591 return (0); 11592 break; 11593 default: 11594 return (0); 11595 } 11596 return (1); 11597} 11598 11599static int 11600ctl_scsiio(struct ctl_scsiio *ctsio) 11601{ 11602 int retval; 11603 const struct ctl_cmd_entry *entry; 11604 11605 retval = CTL_RETVAL_COMPLETE; 11606 11607 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11608 11609 entry = ctl_get_cmd_entry(ctsio, NULL); 11610 11611 /* 11612 * If this I/O has been aborted, just send it straight to 11613 * ctl_done() without executing it. 11614 */ 11615 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11616 ctl_done((union ctl_io *)ctsio); 11617 goto bailout; 11618 } 11619 11620 /* 11621 * All the checks should have been handled by ctl_scsiio_precheck(). 11622 * We should be clear now to just execute the I/O. 11623 */ 11624 retval = entry->execute(ctsio); 11625 11626bailout: 11627 return (retval); 11628} 11629 11630static int 11631ctl_target_reset(union ctl_io *io) 11632{ 11633 struct ctl_softc *softc = CTL_SOFTC(io); 11634 struct ctl_port *port = CTL_PORT(io); 11635 struct ctl_lun *lun; 11636 uint32_t initidx; 11637 ctl_ua_type ua_type; 11638 11639 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11640 union ctl_ha_msg msg_info; 11641 11642 msg_info.hdr.nexus = io->io_hdr.nexus; 11643 msg_info.task.task_action = io->taskio.task_action; 11644 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11645 msg_info.hdr.original_sc = NULL; 11646 msg_info.hdr.serializing_sc = NULL; 11647 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11648 sizeof(msg_info.task), M_WAITOK); 11649 } 11650 11651 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11652 if (io->taskio.task_action == CTL_TASK_TARGET_RESET) 11653 ua_type = CTL_UA_TARG_RESET; 11654 else 11655 ua_type = CTL_UA_BUS_RESET; 11656 mtx_lock(&softc->ctl_lock); 11657 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11658 if (port != NULL && 11659 ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 11660 continue; 11661 ctl_do_lun_reset(lun, initidx, ua_type); 11662 } 11663 mtx_unlock(&softc->ctl_lock); 11664 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11665 return (0); 11666} 11667 11668/* 11669 * The LUN should always be set. The I/O is optional, and is used to 11670 * distinguish between I/Os sent by this initiator, and by other 11671 * initiators. We set unit attention for initiators other than this one. 11672 * SAM-3 is vague on this point. It does say that a unit attention should 11673 * be established for other initiators when a LUN is reset (see section 11674 * 5.7.3), but it doesn't specifically say that the unit attention should 11675 * be established for this particular initiator when a LUN is reset. Here 11676 * is the relevant text, from SAM-3 rev 8: 11677 * 11678 * 5.7.2 When a SCSI initiator port aborts its own tasks 11679 * 11680 * When a SCSI initiator port causes its own task(s) to be aborted, no 11681 * notification that the task(s) have been aborted shall be returned to 11682 * the SCSI initiator port other than the completion response for the 11683 * command or task management function action that caused the task(s) to 11684 * be aborted and notification(s) associated with related effects of the 11685 * action (e.g., a reset unit attention condition). 11686 * 11687 * XXX KDM for now, we're setting unit attention for all initiators. 11688 */ 11689static void 11690ctl_do_lun_reset(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua_type) 11691{ 11692 union ctl_io *xio; 11693 int i; 11694 11695 mtx_lock(&lun->lun_lock); 11696 /* Abort tasks. */ 11697 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11698 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11699 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11700 } 11701 /* Clear CA. */ 11702 for (i = 0; i < ctl_max_ports; i++) { 11703 free(lun->pending_sense[i], M_CTL); 11704 lun->pending_sense[i] = NULL; 11705 } 11706 /* Clear reservation. */ 11707 lun->flags &= ~CTL_LUN_RESERVED; 11708 /* Clear prevent media removal. */ 11709 if (lun->prevent) { 11710 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11711 ctl_clear_mask(lun->prevent, i); 11712 lun->prevent_count = 0; 11713 } 11714 /* Clear TPC status */ 11715 ctl_tpc_lun_clear(lun, -1); 11716 /* Establish UA. */ 11717#if 0 11718 ctl_est_ua_all(lun, initidx, ua_type); 11719#else 11720 ctl_est_ua_all(lun, -1, ua_type); 11721#endif 11722 mtx_unlock(&lun->lun_lock); 11723} 11724 11725static int 11726ctl_lun_reset(union ctl_io *io) 11727{ 11728 struct ctl_softc *softc = CTL_SOFTC(io); 11729 struct ctl_lun *lun; 11730 uint32_t targ_lun, initidx; 11731 11732 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11733 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11734 mtx_lock(&softc->ctl_lock); 11735 if (targ_lun >= ctl_max_luns || 11736 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11737 mtx_unlock(&softc->ctl_lock); 11738 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11739 return (1); 11740 } 11741 ctl_do_lun_reset(lun, initidx, CTL_UA_LUN_RESET); 11742 mtx_unlock(&softc->ctl_lock); 11743 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11744 11745 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0) { 11746 union ctl_ha_msg msg_info; 11747 11748 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11749 msg_info.hdr.nexus = io->io_hdr.nexus; 11750 msg_info.task.task_action = CTL_TASK_LUN_RESET; 11751 msg_info.hdr.original_sc = NULL; 11752 msg_info.hdr.serializing_sc = NULL; 11753 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11754 sizeof(msg_info.task), M_WAITOK); 11755 } 11756 return (0); 11757} 11758 11759static void 11760ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11761 int other_sc) 11762{ 11763 union ctl_io *xio; 11764 11765 mtx_assert(&lun->lun_lock, MA_OWNED); 11766 11767 /* 11768 * Run through the OOA queue and attempt to find the given I/O. 11769 * The target port, initiator ID, tag type and tag number have to 11770 * match the values that we got from the initiator. If we have an 11771 * untagged command to abort, simply abort the first untagged command 11772 * we come to. We only allow one untagged command at a time of course. 11773 */ 11774 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11775 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11776 11777 if ((targ_port == UINT32_MAX || 11778 targ_port == xio->io_hdr.nexus.targ_port) && 11779 (init_id == UINT32_MAX || 11780 init_id == xio->io_hdr.nexus.initid)) { 11781 if (targ_port != xio->io_hdr.nexus.targ_port || 11782 init_id != xio->io_hdr.nexus.initid) 11783 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11784 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11785 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11786 union ctl_ha_msg msg_info; 11787 11788 msg_info.hdr.nexus = xio->io_hdr.nexus; 11789 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11790 msg_info.task.tag_num = xio->scsiio.tag_num; 11791 msg_info.task.tag_type = xio->scsiio.tag_type; 11792 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11793 msg_info.hdr.original_sc = NULL; 11794 msg_info.hdr.serializing_sc = NULL; 11795 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11796 sizeof(msg_info.task), M_NOWAIT); 11797 } 11798 } 11799 } 11800} 11801 11802static int 11803ctl_abort_task_set(union ctl_io *io) 11804{ 11805 struct ctl_softc *softc = CTL_SOFTC(io); 11806 struct ctl_lun *lun; 11807 uint32_t targ_lun; 11808 11809 /* 11810 * Look up the LUN. 11811 */ 11812 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11813 mtx_lock(&softc->ctl_lock); 11814 if (targ_lun >= ctl_max_luns || 11815 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11816 mtx_unlock(&softc->ctl_lock); 11817 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11818 return (1); 11819 } 11820 11821 mtx_lock(&lun->lun_lock); 11822 mtx_unlock(&softc->ctl_lock); 11823 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 11824 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11825 io->io_hdr.nexus.initid, 11826 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11827 } else { /* CTL_TASK_CLEAR_TASK_SET */ 11828 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 11829 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11830 } 11831 mtx_unlock(&lun->lun_lock); 11832 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11833 return (0); 11834} 11835 11836static void 11837ctl_i_t_nexus_loss(struct ctl_softc *softc, uint32_t initidx, 11838 ctl_ua_type ua_type) 11839{ 11840 struct ctl_lun *lun; 11841 struct scsi_sense_data *ps; 11842 uint32_t p, i; 11843 11844 p = initidx / CTL_MAX_INIT_PER_PORT; 11845 i = initidx % CTL_MAX_INIT_PER_PORT; 11846 mtx_lock(&softc->ctl_lock); 11847 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11848 mtx_lock(&lun->lun_lock); 11849 /* Abort tasks. */ 11850 ctl_abort_tasks_lun(lun, p, i, 1); 11851 /* Clear CA. */ 11852 ps = lun->pending_sense[p]; 11853 if (ps != NULL) 11854 ps[i].error_code = 0; 11855 /* Clear reservation. */ 11856 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == initidx)) 11857 lun->flags &= ~CTL_LUN_RESERVED; 11858 /* Clear prevent media removal. */ 11859 if (lun->prevent && ctl_is_set(lun->prevent, initidx)) { 11860 ctl_clear_mask(lun->prevent, initidx); 11861 lun->prevent_count--; 11862 } 11863 /* Clear TPC status */ 11864 ctl_tpc_lun_clear(lun, initidx); 11865 /* Establish UA. */ 11866 ctl_est_ua(lun, initidx, ua_type); 11867 mtx_unlock(&lun->lun_lock); 11868 } 11869 mtx_unlock(&softc->ctl_lock); 11870} 11871 11872static int 11873ctl_i_t_nexus_reset(union ctl_io *io) 11874{ 11875 struct ctl_softc *softc = CTL_SOFTC(io); 11876 uint32_t initidx; 11877 11878 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11879 union ctl_ha_msg msg_info; 11880 11881 msg_info.hdr.nexus = io->io_hdr.nexus; 11882 msg_info.task.task_action = CTL_TASK_I_T_NEXUS_RESET; 11883 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11884 msg_info.hdr.original_sc = NULL; 11885 msg_info.hdr.serializing_sc = NULL; 11886 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11887 sizeof(msg_info.task), M_WAITOK); 11888 } 11889 11890 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11891 ctl_i_t_nexus_loss(softc, initidx, CTL_UA_I_T_NEXUS_LOSS); 11892 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11893 return (0); 11894} 11895 11896static int 11897ctl_abort_task(union ctl_io *io) 11898{ 11899 struct ctl_softc *softc = CTL_SOFTC(io); 11900 union ctl_io *xio; 11901 struct ctl_lun *lun; 11902 uint32_t targ_lun; 11903 11904 /* 11905 * Look up the LUN. 11906 */ 11907 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11908 mtx_lock(&softc->ctl_lock); 11909 if (targ_lun >= ctl_max_luns || 11910 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11911 mtx_unlock(&softc->ctl_lock); 11912 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11913 return (1); 11914 } 11915 11916 mtx_lock(&lun->lun_lock); 11917 mtx_unlock(&softc->ctl_lock); 11918 /* 11919 * Run through the OOA queue and attempt to find the given I/O. 11920 * The target port, initiator ID, tag type and tag number have to 11921 * match the values that we got from the initiator. If we have an 11922 * untagged command to abort, simply abort the first untagged command 11923 * we come to. We only allow one untagged command at a time of course. 11924 */ 11925 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11926 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11927 11928 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 11929 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 11930 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 11931 continue; 11932 11933 /* 11934 * If the abort says that the task is untagged, the 11935 * task in the queue must be untagged. Otherwise, 11936 * we just check to see whether the tag numbers 11937 * match. This is because the QLogic firmware 11938 * doesn't pass back the tag type in an abort 11939 * request. 11940 */ 11941#if 0 11942 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 11943 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 11944 || (xio->scsiio.tag_num == io->taskio.tag_num)) { 11945#else 11946 /* 11947 * XXX KDM we've got problems with FC, because it 11948 * doesn't send down a tag type with aborts. So we 11949 * can only really go by the tag number... 11950 * This may cause problems with parallel SCSI. 11951 * Need to figure that out!! 11952 */ 11953 if (xio->scsiio.tag_num == io->taskio.tag_num) { 11954#endif 11955 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11956 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0 && 11957 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11958 union ctl_ha_msg msg_info; 11959 11960 msg_info.hdr.nexus = io->io_hdr.nexus; 11961 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11962 msg_info.task.tag_num = io->taskio.tag_num; 11963 msg_info.task.tag_type = io->taskio.tag_type; 11964 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11965 msg_info.hdr.original_sc = NULL; 11966 msg_info.hdr.serializing_sc = NULL; 11967 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11968 sizeof(msg_info.task), M_NOWAIT); 11969 } 11970 } 11971 } 11972 mtx_unlock(&lun->lun_lock); 11973 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11974 return (0); 11975} 11976 11977static int 11978ctl_query_task(union ctl_io *io, int task_set) 11979{ 11980 struct ctl_softc *softc = CTL_SOFTC(io); 11981 union ctl_io *xio; 11982 struct ctl_lun *lun; 11983 int found = 0; 11984 uint32_t targ_lun; 11985 11986 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11987 mtx_lock(&softc->ctl_lock); 11988 if (targ_lun >= ctl_max_luns || 11989 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11990 mtx_unlock(&softc->ctl_lock); 11991 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11992 return (1); 11993 } 11994 mtx_lock(&lun->lun_lock); 11995 mtx_unlock(&softc->ctl_lock); 11996 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11997 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11998 11999 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12000 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12001 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12002 continue; 12003 12004 if (task_set || xio->scsiio.tag_num == io->taskio.tag_num) { 12005 found = 1; 12006 break; 12007 } 12008 } 12009 mtx_unlock(&lun->lun_lock); 12010 if (found) 12011 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12012 else 12013 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12014 return (0); 12015} 12016 12017static int 12018ctl_query_async_event(union ctl_io *io) 12019{ 12020 struct ctl_softc *softc = CTL_SOFTC(io); 12021 struct ctl_lun *lun; 12022 ctl_ua_type ua; 12023 uint32_t targ_lun, initidx; 12024 12025 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12026 mtx_lock(&softc->ctl_lock); 12027 if (targ_lun >= ctl_max_luns || 12028 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12029 mtx_unlock(&softc->ctl_lock); 12030 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12031 return (1); 12032 } 12033 mtx_lock(&lun->lun_lock); 12034 mtx_unlock(&softc->ctl_lock); 12035 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12036 ua = ctl_build_qae(lun, initidx, io->taskio.task_resp); 12037 mtx_unlock(&lun->lun_lock); 12038 if (ua != CTL_UA_NONE) 12039 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12040 else 12041 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12042 return (0); 12043} 12044 12045static void 12046ctl_run_task(union ctl_io *io) 12047{ 12048 int retval = 1; 12049 12050 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12051 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12052 ("ctl_run_task: Unextected io_type %d\n", io->io_hdr.io_type)); 12053 io->taskio.task_status = CTL_TASK_FUNCTION_NOT_SUPPORTED; 12054 bzero(io->taskio.task_resp, sizeof(io->taskio.task_resp)); 12055 switch (io->taskio.task_action) { 12056 case CTL_TASK_ABORT_TASK: 12057 retval = ctl_abort_task(io); 12058 break; 12059 case CTL_TASK_ABORT_TASK_SET: 12060 case CTL_TASK_CLEAR_TASK_SET: 12061 retval = ctl_abort_task_set(io); 12062 break; 12063 case CTL_TASK_CLEAR_ACA: 12064 break; 12065 case CTL_TASK_I_T_NEXUS_RESET: 12066 retval = ctl_i_t_nexus_reset(io); 12067 break; 12068 case CTL_TASK_LUN_RESET: 12069 retval = ctl_lun_reset(io); 12070 break; 12071 case CTL_TASK_TARGET_RESET: 12072 case CTL_TASK_BUS_RESET: 12073 retval = ctl_target_reset(io); 12074 break; 12075 case CTL_TASK_PORT_LOGIN: 12076 break; 12077 case CTL_TASK_PORT_LOGOUT: 12078 break; 12079 case CTL_TASK_QUERY_TASK: 12080 retval = ctl_query_task(io, 0); 12081 break; 12082 case CTL_TASK_QUERY_TASK_SET: 12083 retval = ctl_query_task(io, 1); 12084 break; 12085 case CTL_TASK_QUERY_ASYNC_EVENT: 12086 retval = ctl_query_async_event(io); 12087 break; 12088 default: 12089 printf("%s: got unknown task management event %d\n", 12090 __func__, io->taskio.task_action); 12091 break; 12092 } 12093 if (retval == 0) 12094 io->io_hdr.status = CTL_SUCCESS; 12095 else 12096 io->io_hdr.status = CTL_ERROR; 12097 ctl_done(io); 12098} 12099 12100/* 12101 * For HA operation. Handle commands that come in from the other 12102 * controller. 12103 */ 12104static void 12105ctl_handle_isc(union ctl_io *io) 12106{ 12107 struct ctl_softc *softc = CTL_SOFTC(io); 12108 struct ctl_lun *lun; 12109 const struct ctl_cmd_entry *entry; 12110 uint32_t targ_lun; 12111 12112 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12113 switch (io->io_hdr.msg_type) { 12114 case CTL_MSG_SERIALIZE: 12115 ctl_serialize_other_sc_cmd(&io->scsiio); 12116 break; 12117 case CTL_MSG_R2R: /* Only used in SER_ONLY mode. */ 12118 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12119 if (targ_lun >= ctl_max_luns || 12120 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12121 ctl_done(io); 12122 break; 12123 } 12124 mtx_lock(&lun->lun_lock); 12125 if (ctl_scsiio_lun_check(lun, entry, &io->scsiio) != 0) { 12126 mtx_unlock(&lun->lun_lock); 12127 ctl_done(io); 12128 break; 12129 } 12130 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12131 mtx_unlock(&lun->lun_lock); 12132 ctl_enqueue_rtr(io); 12133 break; 12134 case CTL_MSG_FINISH_IO: 12135 if (softc->ha_mode == CTL_HA_MODE_XFER) { 12136 ctl_done(io); 12137 break; 12138 } 12139 if (targ_lun >= ctl_max_luns || 12140 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12141 ctl_free_io(io); 12142 break; 12143 } 12144 mtx_lock(&lun->lun_lock); 12145 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 12146 ctl_check_blocked(lun); 12147 mtx_unlock(&lun->lun_lock); 12148 ctl_free_io(io); 12149 break; 12150 case CTL_MSG_PERS_ACTION: 12151 ctl_hndl_per_res_out_on_other_sc(io); 12152 ctl_free_io(io); 12153 break; 12154 case CTL_MSG_BAD_JUJU: 12155 ctl_done(io); 12156 break; 12157 case CTL_MSG_DATAMOVE: /* Only used in XFER mode */ 12158 ctl_datamove_remote(io); 12159 break; 12160 case CTL_MSG_DATAMOVE_DONE: /* Only used in XFER mode */ 12161 io->scsiio.be_move_done(io); 12162 break; 12163 case CTL_MSG_FAILOVER: 12164 ctl_failover_lun(io); 12165 ctl_free_io(io); 12166 break; 12167 default: 12168 printf("%s: Invalid message type %d\n", 12169 __func__, io->io_hdr.msg_type); 12170 ctl_free_io(io); 12171 break; 12172 } 12173 12174} 12175 12176 12177/* 12178 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12179 * there is no match. 12180 */ 12181static ctl_lun_error_pattern 12182ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12183{ 12184 const struct ctl_cmd_entry *entry; 12185 ctl_lun_error_pattern filtered_pattern, pattern; 12186 12187 pattern = desc->error_pattern; 12188 12189 /* 12190 * XXX KDM we need more data passed into this function to match a 12191 * custom pattern, and we actually need to implement custom pattern 12192 * matching. 12193 */ 12194 if (pattern & CTL_LUN_PAT_CMD) 12195 return (CTL_LUN_PAT_CMD); 12196 12197 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12198 return (CTL_LUN_PAT_ANY); 12199 12200 entry = ctl_get_cmd_entry(ctsio, NULL); 12201 12202 filtered_pattern = entry->pattern & pattern; 12203 12204 /* 12205 * If the user requested specific flags in the pattern (e.g. 12206 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12207 * flags. 12208 * 12209 * If the user did not specify any flags, it doesn't matter whether 12210 * or not the command supports the flags. 12211 */ 12212 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12213 (pattern & ~CTL_LUN_PAT_MASK)) 12214 return (CTL_LUN_PAT_NONE); 12215 12216 /* 12217 * If the user asked for a range check, see if the requested LBA 12218 * range overlaps with this command's LBA range. 12219 */ 12220 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12221 uint64_t lba1; 12222 uint64_t len1; 12223 ctl_action action; 12224 int retval; 12225 12226 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12227 if (retval != 0) 12228 return (CTL_LUN_PAT_NONE); 12229 12230 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12231 desc->lba_range.len, FALSE); 12232 /* 12233 * A "pass" means that the LBA ranges don't overlap, so 12234 * this doesn't match the user's range criteria. 12235 */ 12236 if (action == CTL_ACTION_PASS) 12237 return (CTL_LUN_PAT_NONE); 12238 } 12239 12240 return (filtered_pattern); 12241} 12242 12243static void 12244ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12245{ 12246 struct ctl_error_desc *desc, *desc2; 12247 12248 mtx_assert(&lun->lun_lock, MA_OWNED); 12249 12250 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12251 ctl_lun_error_pattern pattern; 12252 /* 12253 * Check to see whether this particular command matches 12254 * the pattern in the descriptor. 12255 */ 12256 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12257 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12258 continue; 12259 12260 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12261 case CTL_LUN_INJ_ABORTED: 12262 ctl_set_aborted(&io->scsiio); 12263 break; 12264 case CTL_LUN_INJ_MEDIUM_ERR: 12265 ctl_set_medium_error(&io->scsiio, 12266 (io->io_hdr.flags & CTL_FLAG_DATA_MASK) != 12267 CTL_FLAG_DATA_OUT); 12268 break; 12269 case CTL_LUN_INJ_UA: 12270 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12271 * OCCURRED */ 12272 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12273 break; 12274 case CTL_LUN_INJ_CUSTOM: 12275 /* 12276 * We're assuming the user knows what he is doing. 12277 * Just copy the sense information without doing 12278 * checks. 12279 */ 12280 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12281 MIN(sizeof(desc->custom_sense), 12282 sizeof(io->scsiio.sense_data))); 12283 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12284 io->scsiio.sense_len = SSD_FULL_SIZE; 12285 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12286 break; 12287 case CTL_LUN_INJ_NONE: 12288 default: 12289 /* 12290 * If this is an error injection type we don't know 12291 * about, clear the continuous flag (if it is set) 12292 * so it will get deleted below. 12293 */ 12294 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12295 break; 12296 } 12297 /* 12298 * By default, each error injection action is a one-shot 12299 */ 12300 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12301 continue; 12302 12303 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12304 12305 free(desc, M_CTL); 12306 } 12307} 12308 12309#ifdef CTL_IO_DELAY 12310static void 12311ctl_datamove_timer_wakeup(void *arg) 12312{ 12313 union ctl_io *io; 12314 12315 io = (union ctl_io *)arg; 12316 12317 ctl_datamove(io); 12318} 12319#endif /* CTL_IO_DELAY */ 12320 12321void 12322ctl_datamove(union ctl_io *io) 12323{ 12324 void (*fe_datamove)(union ctl_io *io); 12325 12326 mtx_assert(&((struct ctl_softc *)CTL_SOFTC(io))->ctl_lock, MA_NOTOWNED); 12327 12328 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12329 12330 /* No data transferred yet. Frontend must update this when done. */ 12331 io->scsiio.kern_data_resid = io->scsiio.kern_data_len; 12332 12333#ifdef CTL_TIME_IO 12334 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12335 char str[256]; 12336 char path_str[64]; 12337 struct sbuf sb; 12338 12339 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12340 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12341 12342 sbuf_cat(&sb, path_str); 12343 switch (io->io_hdr.io_type) { 12344 case CTL_IO_SCSI: 12345 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12346 sbuf_printf(&sb, "\n"); 12347 sbuf_cat(&sb, path_str); 12348 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12349 io->scsiio.tag_num, io->scsiio.tag_type); 12350 break; 12351 case CTL_IO_TASK: 12352 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12353 "Tag Type: %d\n", io->taskio.task_action, 12354 io->taskio.tag_num, io->taskio.tag_type); 12355 break; 12356 default: 12357 panic("%s: Invalid CTL I/O type %d\n", 12358 __func__, io->io_hdr.io_type); 12359 } 12360 sbuf_cat(&sb, path_str); 12361 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12362 (intmax_t)time_uptime - io->io_hdr.start_time); 12363 sbuf_finish(&sb); 12364 printf("%s", sbuf_data(&sb)); 12365 } 12366#endif /* CTL_TIME_IO */ 12367 12368#ifdef CTL_IO_DELAY 12369 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12370 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12371 } else { 12372 struct ctl_lun *lun; 12373 12374 lun = CTL_LUN(io); 12375 if ((lun != NULL) 12376 && (lun->delay_info.datamove_delay > 0)) { 12377 12378 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 12379 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12380 callout_reset(&io->io_hdr.delay_callout, 12381 lun->delay_info.datamove_delay * hz, 12382 ctl_datamove_timer_wakeup, io); 12383 if (lun->delay_info.datamove_type == 12384 CTL_DELAY_TYPE_ONESHOT) 12385 lun->delay_info.datamove_delay = 0; 12386 return; 12387 } 12388 } 12389#endif 12390 12391 /* 12392 * This command has been aborted. Set the port status, so we fail 12393 * the data move. 12394 */ 12395 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12396 printf("ctl_datamove: tag 0x%04x on (%u:%u:%u) aborted\n", 12397 io->scsiio.tag_num, io->io_hdr.nexus.initid, 12398 io->io_hdr.nexus.targ_port, 12399 io->io_hdr.nexus.targ_lun); 12400 io->io_hdr.port_status = 31337; 12401 /* 12402 * Note that the backend, in this case, will get the 12403 * callback in its context. In other cases it may get 12404 * called in the frontend's interrupt thread context. 12405 */ 12406 io->scsiio.be_move_done(io); 12407 return; 12408 } 12409 12410 /* Don't confuse frontend with zero length data move. */ 12411 if (io->scsiio.kern_data_len == 0) { 12412 io->scsiio.be_move_done(io); 12413 return; 12414 } 12415 12416 fe_datamove = CTL_PORT(io)->fe_datamove; 12417 fe_datamove(io); 12418} 12419 12420static void 12421ctl_send_datamove_done(union ctl_io *io, int have_lock) 12422{ 12423 union ctl_ha_msg msg; 12424#ifdef CTL_TIME_IO 12425 struct bintime cur_bt; 12426#endif 12427 12428 memset(&msg, 0, sizeof(msg)); 12429 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12430 msg.hdr.original_sc = io; 12431 msg.hdr.serializing_sc = io->io_hdr.remote_io; 12432 msg.hdr.nexus = io->io_hdr.nexus; 12433 msg.hdr.status = io->io_hdr.status; 12434 msg.scsi.kern_data_resid = io->scsiio.kern_data_resid; 12435 msg.scsi.tag_num = io->scsiio.tag_num; 12436 msg.scsi.tag_type = io->scsiio.tag_type; 12437 msg.scsi.scsi_status = io->scsiio.scsi_status; 12438 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12439 io->scsiio.sense_len); 12440 msg.scsi.sense_len = io->scsiio.sense_len; 12441 msg.scsi.port_status = io->io_hdr.port_status; 12442 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12443 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12444 ctl_failover_io(io, /*have_lock*/ have_lock); 12445 return; 12446 } 12447 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12448 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 12449 msg.scsi.sense_len, M_WAITOK); 12450 12451#ifdef CTL_TIME_IO 12452 getbinuptime(&cur_bt); 12453 bintime_sub(&cur_bt, &io->io_hdr.dma_start_bt); 12454 bintime_add(&io->io_hdr.dma_bt, &cur_bt); 12455#endif 12456 io->io_hdr.num_dmas++; 12457} 12458 12459/* 12460 * The DMA to the remote side is done, now we need to tell the other side 12461 * we're done so it can continue with its data movement. 12462 */ 12463static void 12464ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12465{ 12466 union ctl_io *io; 12467 uint32_t i; 12468 12469 io = rq->context; 12470 12471 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12472 printf("%s: ISC DMA write failed with error %d", __func__, 12473 rq->ret); 12474 ctl_set_internal_failure(&io->scsiio, 12475 /*sks_valid*/ 1, 12476 /*retry_count*/ rq->ret); 12477 } 12478 12479 ctl_dt_req_free(rq); 12480 12481 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12482 free(CTL_LSGLT(io)[i].addr, M_CTL); 12483 free(CTL_RSGL(io), M_CTL); 12484 CTL_RSGL(io) = NULL; 12485 CTL_LSGL(io) = NULL; 12486 12487 /* 12488 * The data is in local and remote memory, so now we need to send 12489 * status (good or back) back to the other side. 12490 */ 12491 ctl_send_datamove_done(io, /*have_lock*/ 0); 12492} 12493 12494/* 12495 * We've moved the data from the host/controller into local memory. Now we 12496 * need to push it over to the remote controller's memory. 12497 */ 12498static int 12499ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12500{ 12501 int retval; 12502 12503 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12504 ctl_datamove_remote_write_cb); 12505 return (retval); 12506} 12507 12508static void 12509ctl_datamove_remote_write(union ctl_io *io) 12510{ 12511 int retval; 12512 void (*fe_datamove)(union ctl_io *io); 12513 12514 /* 12515 * - Get the data from the host/HBA into local memory. 12516 * - DMA memory from the local controller to the remote controller. 12517 * - Send status back to the remote controller. 12518 */ 12519 12520 retval = ctl_datamove_remote_sgl_setup(io); 12521 if (retval != 0) 12522 return; 12523 12524 /* Switch the pointer over so the FETD knows what to do */ 12525 io->scsiio.kern_data_ptr = (uint8_t *)CTL_LSGL(io); 12526 12527 /* 12528 * Use a custom move done callback, since we need to send completion 12529 * back to the other controller, not to the backend on this side. 12530 */ 12531 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12532 12533 fe_datamove = CTL_PORT(io)->fe_datamove; 12534 fe_datamove(io); 12535} 12536 12537static int 12538ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12539{ 12540 uint32_t i; 12541 12542 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12543 free(CTL_LSGLT(io)[i].addr, M_CTL); 12544 free(CTL_RSGL(io), M_CTL); 12545 CTL_RSGL(io) = NULL; 12546 CTL_LSGL(io) = NULL; 12547 12548 /* 12549 * The read is done, now we need to send status (good or bad) back 12550 * to the other side. 12551 */ 12552 ctl_send_datamove_done(io, /*have_lock*/ 0); 12553 12554 return (0); 12555} 12556 12557static void 12558ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12559{ 12560 union ctl_io *io; 12561 void (*fe_datamove)(union ctl_io *io); 12562 12563 io = rq->context; 12564 12565 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12566 printf("%s: ISC DMA read failed with error %d\n", __func__, 12567 rq->ret); 12568 ctl_set_internal_failure(&io->scsiio, 12569 /*sks_valid*/ 1, 12570 /*retry_count*/ rq->ret); 12571 } 12572 12573 ctl_dt_req_free(rq); 12574 12575 /* Switch the pointer over so the FETD knows what to do */ 12576 io->scsiio.kern_data_ptr = (uint8_t *)CTL_LSGL(io); 12577 12578 /* 12579 * Use a custom move done callback, since we need to send completion 12580 * back to the other controller, not to the backend on this side. 12581 */ 12582 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12583 12584 /* XXX KDM add checks like the ones in ctl_datamove? */ 12585 12586 fe_datamove = CTL_PORT(io)->fe_datamove; 12587 fe_datamove(io); 12588} 12589 12590static int 12591ctl_datamove_remote_sgl_setup(union ctl_io *io) 12592{ 12593 struct ctl_sg_entry *local_sglist; 12594 uint32_t len_to_go; 12595 int retval; 12596 int i; 12597 12598 retval = 0; 12599 local_sglist = CTL_LSGL(io); 12600 len_to_go = io->scsiio.kern_data_len; 12601 12602 /* 12603 * The difficult thing here is that the size of the various 12604 * S/G segments may be different than the size from the 12605 * remote controller. That'll make it harder when DMAing 12606 * the data back to the other side. 12607 */ 12608 for (i = 0; len_to_go > 0; i++) { 12609 local_sglist[i].len = MIN(len_to_go, CTL_HA_DATAMOVE_SEGMENT); 12610 local_sglist[i].addr = 12611 malloc(local_sglist[i].len, M_CTL, M_WAITOK); 12612 12613 len_to_go -= local_sglist[i].len; 12614 } 12615 /* 12616 * Reset the number of S/G entries accordingly. The original 12617 * number of S/G entries is available in rem_sg_entries. 12618 */ 12619 io->scsiio.kern_sg_entries = i; 12620 12621 return (retval); 12622} 12623 12624static int 12625ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 12626 ctl_ha_dt_cb callback) 12627{ 12628 struct ctl_ha_dt_req *rq; 12629 struct ctl_sg_entry *remote_sglist, *local_sglist; 12630 uint32_t local_used, remote_used, total_used; 12631 int i, j, isc_ret; 12632 12633 rq = ctl_dt_req_alloc(); 12634 12635 /* 12636 * If we failed to allocate the request, and if the DMA didn't fail 12637 * anyway, set busy status. This is just a resource allocation 12638 * failure. 12639 */ 12640 if ((rq == NULL) 12641 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12642 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) 12643 ctl_set_busy(&io->scsiio); 12644 12645 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12646 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) { 12647 12648 if (rq != NULL) 12649 ctl_dt_req_free(rq); 12650 12651 /* 12652 * The data move failed. We need to return status back 12653 * to the other controller. No point in trying to DMA 12654 * data to the remote controller. 12655 */ 12656 12657 ctl_send_datamove_done(io, /*have_lock*/ 0); 12658 12659 return (1); 12660 } 12661 12662 local_sglist = CTL_LSGL(io); 12663 remote_sglist = CTL_RSGL(io); 12664 local_used = 0; 12665 remote_used = 0; 12666 total_used = 0; 12667 12668 /* 12669 * Pull/push the data over the wire from/to the other controller. 12670 * This takes into account the possibility that the local and 12671 * remote sglists may not be identical in terms of the size of 12672 * the elements and the number of elements. 12673 * 12674 * One fundamental assumption here is that the length allocated for 12675 * both the local and remote sglists is identical. Otherwise, we've 12676 * essentially got a coding error of some sort. 12677 */ 12678 isc_ret = CTL_HA_STATUS_SUCCESS; 12679 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 12680 uint32_t cur_len; 12681 uint8_t *tmp_ptr; 12682 12683 rq->command = command; 12684 rq->context = io; 12685 12686 /* 12687 * Both pointers should be aligned. But it is possible 12688 * that the allocation length is not. They should both 12689 * also have enough slack left over at the end, though, 12690 * to round up to the next 8 byte boundary. 12691 */ 12692 cur_len = MIN(local_sglist[i].len - local_used, 12693 remote_sglist[j].len - remote_used); 12694 rq->size = cur_len; 12695 12696 tmp_ptr = (uint8_t *)local_sglist[i].addr; 12697 tmp_ptr += local_used; 12698 12699#if 0 12700 /* Use physical addresses when talking to ISC hardware */ 12701 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 12702 /* XXX KDM use busdma */ 12703 rq->local = vtophys(tmp_ptr); 12704 } else 12705 rq->local = tmp_ptr; 12706#else 12707 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 12708 ("HA does not support BUS_ADDR")); 12709 rq->local = tmp_ptr; 12710#endif 12711 12712 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 12713 tmp_ptr += remote_used; 12714 rq->remote = tmp_ptr; 12715 12716 rq->callback = NULL; 12717 12718 local_used += cur_len; 12719 if (local_used >= local_sglist[i].len) { 12720 i++; 12721 local_used = 0; 12722 } 12723 12724 remote_used += cur_len; 12725 if (remote_used >= remote_sglist[j].len) { 12726 j++; 12727 remote_used = 0; 12728 } 12729 total_used += cur_len; 12730 12731 if (total_used >= io->scsiio.kern_data_len) 12732 rq->callback = callback; 12733 12734 isc_ret = ctl_dt_single(rq); 12735 if (isc_ret > CTL_HA_STATUS_SUCCESS) 12736 break; 12737 } 12738 if (isc_ret != CTL_HA_STATUS_WAIT) { 12739 rq->ret = isc_ret; 12740 callback(rq); 12741 } 12742 12743 return (0); 12744} 12745 12746static void 12747ctl_datamove_remote_read(union ctl_io *io) 12748{ 12749 int retval; 12750 uint32_t i; 12751 12752 /* 12753 * This will send an error to the other controller in the case of a 12754 * failure. 12755 */ 12756 retval = ctl_datamove_remote_sgl_setup(io); 12757 if (retval != 0) 12758 return; 12759 12760 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 12761 ctl_datamove_remote_read_cb); 12762 if (retval != 0) { 12763 /* 12764 * Make sure we free memory if there was an error.. The 12765 * ctl_datamove_remote_xfer() function will send the 12766 * datamove done message, or call the callback with an 12767 * error if there is a problem. 12768 */ 12769 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12770 free(CTL_LSGLT(io)[i].addr, M_CTL); 12771 free(CTL_RSGL(io), M_CTL); 12772 CTL_RSGL(io) = NULL; 12773 CTL_LSGL(io) = NULL; 12774 } 12775} 12776 12777/* 12778 * Process a datamove request from the other controller. This is used for 12779 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 12780 * first. Once that is complete, the data gets DMAed into the remote 12781 * controller's memory. For reads, we DMA from the remote controller's 12782 * memory into our memory first, and then move it out to the FETD. 12783 */ 12784static void 12785ctl_datamove_remote(union ctl_io *io) 12786{ 12787 12788 mtx_assert(&((struct ctl_softc *)CTL_SOFTC(io))->ctl_lock, MA_NOTOWNED); 12789 12790 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12791 ctl_failover_io(io, /*have_lock*/ 0); 12792 return; 12793 } 12794 12795 /* 12796 * Note that we look for an aborted I/O here, but don't do some of 12797 * the other checks that ctl_datamove() normally does. 12798 * We don't need to run the datamove delay code, since that should 12799 * have been done if need be on the other controller. 12800 */ 12801 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12802 printf("%s: tag 0x%04x on (%u:%u:%u) aborted\n", __func__, 12803 io->scsiio.tag_num, io->io_hdr.nexus.initid, 12804 io->io_hdr.nexus.targ_port, 12805 io->io_hdr.nexus.targ_lun); 12806 io->io_hdr.port_status = 31338; 12807 ctl_send_datamove_done(io, /*have_lock*/ 0); 12808 return; 12809 } 12810 12811 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 12812 ctl_datamove_remote_write(io); 12813 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 12814 ctl_datamove_remote_read(io); 12815 else { 12816 io->io_hdr.port_status = 31339; 12817 ctl_send_datamove_done(io, /*have_lock*/ 0); 12818 } 12819} 12820 12821static void 12822ctl_process_done(union ctl_io *io) 12823{ 12824 struct ctl_softc *softc = CTL_SOFTC(io); 12825 struct ctl_port *port = CTL_PORT(io); 12826 struct ctl_lun *lun = CTL_LUN(io); 12827 void (*fe_done)(union ctl_io *io); 12828 union ctl_ha_msg msg; 12829 12830 CTL_DEBUG_PRINT(("ctl_process_done\n")); 12831 fe_done = port->fe_done; 12832 12833#ifdef CTL_TIME_IO 12834 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12835 char str[256]; 12836 char path_str[64]; 12837 struct sbuf sb; 12838 12839 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12840 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12841 12842 sbuf_cat(&sb, path_str); 12843 switch (io->io_hdr.io_type) { 12844 case CTL_IO_SCSI: 12845 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12846 sbuf_printf(&sb, "\n"); 12847 sbuf_cat(&sb, path_str); 12848 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12849 io->scsiio.tag_num, io->scsiio.tag_type); 12850 break; 12851 case CTL_IO_TASK: 12852 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12853 "Tag Type: %d\n", io->taskio.task_action, 12854 io->taskio.tag_num, io->taskio.tag_type); 12855 break; 12856 default: 12857 panic("%s: Invalid CTL I/O type %d\n", 12858 __func__, io->io_hdr.io_type); 12859 } 12860 sbuf_cat(&sb, path_str); 12861 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 12862 (intmax_t)time_uptime - io->io_hdr.start_time); 12863 sbuf_finish(&sb); 12864 printf("%s", sbuf_data(&sb)); 12865 } 12866#endif /* CTL_TIME_IO */ 12867 12868 switch (io->io_hdr.io_type) { 12869 case CTL_IO_SCSI: 12870 break; 12871 case CTL_IO_TASK: 12872 if (ctl_debug & CTL_DEBUG_INFO) 12873 ctl_io_error_print(io, NULL); 12874 fe_done(io); 12875 return; 12876 default: 12877 panic("%s: Invalid CTL I/O type %d\n", 12878 __func__, io->io_hdr.io_type); 12879 } 12880 12881 if (lun == NULL) { 12882 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 12883 io->io_hdr.nexus.targ_mapped_lun)); 12884 goto bailout; 12885 } 12886 12887 mtx_lock(&lun->lun_lock); 12888 12889 /* 12890 * Check to see if we have any informational exception and status 12891 * of this command can be modified to report it in form of either 12892 * RECOVERED ERROR or NO SENSE, depending on MRIE mode page field. 12893 */ 12894 if (lun->ie_reported == 0 && lun->ie_asc != 0 && 12895 io->io_hdr.status == CTL_SUCCESS && 12896 (io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0) { 12897 uint8_t mrie = lun->MODE_IE.mrie; 12898 uint8_t per = ((lun->MODE_RWER.byte3 & SMS_RWER_PER) || 12899 (lun->MODE_VER.byte3 & SMS_VER_PER)); 12900 if (((mrie == SIEP_MRIE_REC_COND && per) || 12901 mrie == SIEP_MRIE_REC_UNCOND || 12902 mrie == SIEP_MRIE_NO_SENSE) && 12903 (ctl_get_cmd_entry(&io->scsiio, NULL)->flags & 12904 CTL_CMD_FLAG_NO_SENSE) == 0) { 12905 ctl_set_sense(&io->scsiio, 12906 /*current_error*/ 1, 12907 /*sense_key*/ (mrie == SIEP_MRIE_NO_SENSE) ? 12908 SSD_KEY_NO_SENSE : SSD_KEY_RECOVERED_ERROR, 12909 /*asc*/ lun->ie_asc, 12910 /*ascq*/ lun->ie_ascq, 12911 SSD_ELEM_NONE); 12912 lun->ie_reported = 1; 12913 } 12914 } else if (lun->ie_reported < 0) 12915 lun->ie_reported = 0; 12916 12917 /* 12918 * Check to see if we have any errors to inject here. We only 12919 * inject errors for commands that don't already have errors set. 12920 */ 12921 if (!STAILQ_EMPTY(&lun->error_list) && 12922 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 12923 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 12924 ctl_inject_error(lun, io); 12925 12926 /* 12927 * XXX KDM how do we treat commands that aren't completed 12928 * successfully? 12929 * 12930 * XXX KDM should we also track I/O latency? 12931 */ 12932 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 12933 io->io_hdr.io_type == CTL_IO_SCSI) { 12934 int type; 12935#ifdef CTL_TIME_IO 12936 struct bintime bt; 12937 12938 getbinuptime(&bt); 12939 bintime_sub(&bt, &io->io_hdr.start_bt); 12940#endif 12941 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 12942 CTL_FLAG_DATA_IN) 12943 type = CTL_STATS_READ; 12944 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 12945 CTL_FLAG_DATA_OUT) 12946 type = CTL_STATS_WRITE; 12947 else 12948 type = CTL_STATS_NO_IO; 12949 12950#ifdef CTL_LEGACY_STATS 12951 uint32_t targ_port = port->targ_port; 12952 lun->legacy_stats.ports[targ_port].bytes[type] += 12953 io->scsiio.kern_total_len; 12954 lun->legacy_stats.ports[targ_port].operations[type] ++; 12955 lun->legacy_stats.ports[targ_port].num_dmas[type] += 12956 io->io_hdr.num_dmas; 12957#ifdef CTL_TIME_IO 12958 bintime_add(&lun->legacy_stats.ports[targ_port].dma_time[type], 12959 &io->io_hdr.dma_bt); 12960 bintime_add(&lun->legacy_stats.ports[targ_port].time[type], 12961 &bt); 12962#endif 12963#endif /* CTL_LEGACY_STATS */ 12964 12965 lun->stats.bytes[type] += io->scsiio.kern_total_len; 12966 lun->stats.operations[type] ++; 12967 lun->stats.dmas[type] += io->io_hdr.num_dmas; 12968#ifdef CTL_TIME_IO 12969 bintime_add(&lun->stats.dma_time[type], &io->io_hdr.dma_bt); 12970 bintime_add(&lun->stats.time[type], &bt); 12971#endif 12972 12973 mtx_lock(&port->port_lock); 12974 port->stats.bytes[type] += io->scsiio.kern_total_len; 12975 port->stats.operations[type] ++; 12976 port->stats.dmas[type] += io->io_hdr.num_dmas; 12977#ifdef CTL_TIME_IO 12978 bintime_add(&port->stats.dma_time[type], &io->io_hdr.dma_bt); 12979 bintime_add(&port->stats.time[type], &bt); 12980#endif 12981 mtx_unlock(&port->port_lock); 12982 } 12983 12984 /* 12985 * Remove this from the OOA queue. 12986 */ 12987 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 12988#ifdef CTL_TIME_IO 12989 if (TAILQ_EMPTY(&lun->ooa_queue)) 12990 lun->last_busy = getsbinuptime(); 12991#endif 12992 12993 /* 12994 * Run through the blocked queue on this LUN and see if anything 12995 * has become unblocked, now that this transaction is done. 12996 */ 12997 ctl_check_blocked(lun); 12998 12999 /* 13000 * If the LUN has been invalidated, free it if there is nothing 13001 * left on its OOA queue. 13002 */ 13003 if ((lun->flags & CTL_LUN_INVALID) 13004 && TAILQ_EMPTY(&lun->ooa_queue)) { 13005 mtx_unlock(&lun->lun_lock); 13006 ctl_free_lun(lun); 13007 } else 13008 mtx_unlock(&lun->lun_lock); 13009 13010bailout: 13011 13012 /* 13013 * If this command has been aborted, make sure we set the status 13014 * properly. The FETD is responsible for freeing the I/O and doing 13015 * whatever it needs to do to clean up its state. 13016 */ 13017 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13018 ctl_set_task_aborted(&io->scsiio); 13019 13020 /* 13021 * If enabled, print command error status. 13022 */ 13023 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS && 13024 (ctl_debug & CTL_DEBUG_INFO) != 0) 13025 ctl_io_error_print(io, NULL); 13026 13027 /* 13028 * Tell the FETD or the other shelf controller we're done with this 13029 * command. Note that only SCSI commands get to this point. Task 13030 * management commands are completed above. 13031 */ 13032 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 13033 (io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC)) { 13034 memset(&msg, 0, sizeof(msg)); 13035 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13036 msg.hdr.serializing_sc = io->io_hdr.remote_io; 13037 msg.hdr.nexus = io->io_hdr.nexus; 13038 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13039 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data), 13040 M_WAITOK); 13041 } 13042 13043 fe_done(io); 13044} 13045 13046/* 13047 * Front end should call this if it doesn't do autosense. When the request 13048 * sense comes back in from the initiator, we'll dequeue this and send it. 13049 */ 13050int 13051ctl_queue_sense(union ctl_io *io) 13052{ 13053 struct ctl_softc *softc = CTL_SOFTC(io); 13054 struct ctl_port *port = CTL_PORT(io); 13055 struct ctl_lun *lun; 13056 struct scsi_sense_data *ps; 13057 uint32_t initidx, p, targ_lun; 13058 13059 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13060 13061 targ_lun = ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13062 13063 /* 13064 * LUN lookup will likely move to the ctl_work_thread() once we 13065 * have our new queueing infrastructure (that doesn't put things on 13066 * a per-LUN queue initially). That is so that we can handle 13067 * things like an INQUIRY to a LUN that we don't have enabled. We 13068 * can't deal with that right now. 13069 * If we don't have a LUN for this, just toss the sense information. 13070 */ 13071 mtx_lock(&softc->ctl_lock); 13072 if (targ_lun >= ctl_max_luns || 13073 (lun = softc->ctl_luns[targ_lun]) == NULL) { 13074 mtx_unlock(&softc->ctl_lock); 13075 goto bailout; 13076 } 13077 mtx_lock(&lun->lun_lock); 13078 mtx_unlock(&softc->ctl_lock); 13079 13080 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13081 p = initidx / CTL_MAX_INIT_PER_PORT; 13082 if (lun->pending_sense[p] == NULL) { 13083 lun->pending_sense[p] = malloc(sizeof(*ps) * CTL_MAX_INIT_PER_PORT, 13084 M_CTL, M_NOWAIT | M_ZERO); 13085 } 13086 if ((ps = lun->pending_sense[p]) != NULL) { 13087 ps += initidx % CTL_MAX_INIT_PER_PORT; 13088 memset(ps, 0, sizeof(*ps)); 13089 memcpy(ps, &io->scsiio.sense_data, io->scsiio.sense_len); 13090 } 13091 mtx_unlock(&lun->lun_lock); 13092 13093bailout: 13094 ctl_free_io(io); 13095 return (CTL_RETVAL_COMPLETE); 13096} 13097 13098/* 13099 * Primary command inlet from frontend ports. All SCSI and task I/O 13100 * requests must go through this function. 13101 */ 13102int 13103ctl_queue(union ctl_io *io) 13104{ 13105 struct ctl_port *port = CTL_PORT(io); 13106 13107 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13108 13109#ifdef CTL_TIME_IO 13110 io->io_hdr.start_time = time_uptime; 13111 getbinuptime(&io->io_hdr.start_bt); 13112#endif /* CTL_TIME_IO */ 13113 13114 /* Map FE-specific LUN ID into global one. */ 13115 io->io_hdr.nexus.targ_mapped_lun = 13116 ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13117 13118 switch (io->io_hdr.io_type) { 13119 case CTL_IO_SCSI: 13120 case CTL_IO_TASK: 13121 if (ctl_debug & CTL_DEBUG_CDB) 13122 ctl_io_print(io); 13123 ctl_enqueue_incoming(io); 13124 break; 13125 default: 13126 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13127 return (EINVAL); 13128 } 13129 13130 return (CTL_RETVAL_COMPLETE); 13131} 13132 13133#ifdef CTL_IO_DELAY 13134static void 13135ctl_done_timer_wakeup(void *arg) 13136{ 13137 union ctl_io *io; 13138 13139 io = (union ctl_io *)arg; 13140 ctl_done(io); 13141} 13142#endif /* CTL_IO_DELAY */ 13143 13144void 13145ctl_serseq_done(union ctl_io *io) 13146{ 13147 struct ctl_lun *lun = CTL_LUN(io);; 13148 13149 if (lun->be_lun == NULL || 13150 lun->be_lun->serseq == CTL_LUN_SERSEQ_OFF) 13151 return; 13152 mtx_lock(&lun->lun_lock); 13153 io->io_hdr.flags |= CTL_FLAG_SERSEQ_DONE; 13154 ctl_check_blocked(lun); 13155 mtx_unlock(&lun->lun_lock); 13156} 13157 13158void 13159ctl_done(union ctl_io *io) 13160{ 13161 13162 /* 13163 * Enable this to catch duplicate completion issues. 13164 */ 13165#if 0 13166 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13167 printf("%s: type %d msg %d cdb %x iptl: " 13168 "%u:%u:%u tag 0x%04x " 13169 "flag %#x status %x\n", 13170 __func__, 13171 io->io_hdr.io_type, 13172 io->io_hdr.msg_type, 13173 io->scsiio.cdb[0], 13174 io->io_hdr.nexus.initid, 13175 io->io_hdr.nexus.targ_port, 13176 io->io_hdr.nexus.targ_lun, 13177 (io->io_hdr.io_type == 13178 CTL_IO_TASK) ? 13179 io->taskio.tag_num : 13180 io->scsiio.tag_num, 13181 io->io_hdr.flags, 13182 io->io_hdr.status); 13183 } else 13184 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13185#endif 13186 13187 /* 13188 * This is an internal copy of an I/O, and should not go through 13189 * the normal done processing logic. 13190 */ 13191 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13192 return; 13193 13194#ifdef CTL_IO_DELAY 13195 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13196 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13197 } else { 13198 struct ctl_lun *lun = CTL_LUN(io); 13199 13200 if ((lun != NULL) 13201 && (lun->delay_info.done_delay > 0)) { 13202 13203 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 13204 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13205 callout_reset(&io->io_hdr.delay_callout, 13206 lun->delay_info.done_delay * hz, 13207 ctl_done_timer_wakeup, io); 13208 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13209 lun->delay_info.done_delay = 0; 13210 return; 13211 } 13212 } 13213#endif /* CTL_IO_DELAY */ 13214 13215 ctl_enqueue_done(io); 13216} 13217 13218static void 13219ctl_work_thread(void *arg) 13220{ 13221 struct ctl_thread *thr = (struct ctl_thread *)arg; 13222 struct ctl_softc *softc = thr->ctl_softc; 13223 union ctl_io *io; 13224 int retval; 13225 13226 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13227 thread_lock(curthread); 13228 sched_prio(curthread, PUSER - 1); 13229 thread_unlock(curthread); 13230 13231 while (!softc->shutdown) { 13232 /* 13233 * We handle the queues in this order: 13234 * - ISC 13235 * - done queue (to free up resources, unblock other commands) 13236 * - RtR queue 13237 * - incoming queue 13238 * 13239 * If those queues are empty, we break out of the loop and 13240 * go to sleep. 13241 */ 13242 mtx_lock(&thr->queue_lock); 13243 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13244 if (io != NULL) { 13245 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13246 mtx_unlock(&thr->queue_lock); 13247 ctl_handle_isc(io); 13248 continue; 13249 } 13250 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13251 if (io != NULL) { 13252 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13253 /* clear any blocked commands, call fe_done */ 13254 mtx_unlock(&thr->queue_lock); 13255 ctl_process_done(io); 13256 continue; 13257 } 13258 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13259 if (io != NULL) { 13260 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13261 mtx_unlock(&thr->queue_lock); 13262 if (io->io_hdr.io_type == CTL_IO_TASK) 13263 ctl_run_task(io); 13264 else 13265 ctl_scsiio_precheck(softc, &io->scsiio); 13266 continue; 13267 } 13268 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13269 if (io != NULL) { 13270 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13271 mtx_unlock(&thr->queue_lock); 13272 retval = ctl_scsiio(&io->scsiio); 13273 if (retval != CTL_RETVAL_COMPLETE) 13274 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13275 continue; 13276 } 13277 13278 /* Sleep until we have something to do. */ 13279 mtx_sleep(thr, &thr->queue_lock, PDROP, "-", 0); 13280 } 13281 thr->thread = NULL; 13282 kthread_exit(); 13283} 13284 13285static void 13286ctl_lun_thread(void *arg) 13287{ 13288 struct ctl_softc *softc = (struct ctl_softc *)arg; 13289 struct ctl_be_lun *be_lun; 13290 13291 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13292 thread_lock(curthread); 13293 sched_prio(curthread, PUSER - 1); 13294 thread_unlock(curthread); 13295 13296 while (!softc->shutdown) { 13297 mtx_lock(&softc->ctl_lock); 13298 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13299 if (be_lun != NULL) { 13300 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13301 mtx_unlock(&softc->ctl_lock); 13302 ctl_create_lun(be_lun); 13303 continue; 13304 } 13305 13306 /* Sleep until we have something to do. */ 13307 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13308 PDROP, "-", 0); 13309 } 13310 softc->lun_thread = NULL; 13311 kthread_exit(); 13312} 13313 13314static void 13315ctl_thresh_thread(void *arg) 13316{ 13317 struct ctl_softc *softc = (struct ctl_softc *)arg; 13318 struct ctl_lun *lun; 13319 struct ctl_logical_block_provisioning_page *page; 13320 const char *attr; 13321 union ctl_ha_msg msg; 13322 uint64_t thres, val; 13323 int i, e, set; 13324 13325 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 13326 thread_lock(curthread); 13327 sched_prio(curthread, PUSER - 1); 13328 thread_unlock(curthread); 13329 13330 while (!softc->shutdown) { 13331 mtx_lock(&softc->ctl_lock); 13332 STAILQ_FOREACH(lun, &softc->lun_list, links) { 13333 if ((lun->flags & CTL_LUN_DISABLED) || 13334 (lun->flags & CTL_LUN_NO_MEDIA) || 13335 lun->backend->lun_attr == NULL) 13336 continue; 13337 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 13338 softc->ha_mode == CTL_HA_MODE_XFER) 13339 continue; 13340 if ((lun->MODE_RWER.byte8 & SMS_RWER_LBPERE) == 0) 13341 continue; 13342 e = 0; 13343 page = &lun->MODE_LBP; 13344 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 13345 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 13346 continue; 13347 thres = scsi_4btoul(page->descr[i].count); 13348 thres <<= CTL_LBP_EXPONENT; 13349 switch (page->descr[i].resource) { 13350 case 0x01: 13351 attr = "blocksavail"; 13352 break; 13353 case 0x02: 13354 attr = "blocksused"; 13355 break; 13356 case 0xf1: 13357 attr = "poolblocksavail"; 13358 break; 13359 case 0xf2: 13360 attr = "poolblocksused"; 13361 break; 13362 default: 13363 continue; 13364 } 13365 mtx_unlock(&softc->ctl_lock); // XXX 13366 val = lun->backend->lun_attr( 13367 lun->be_lun->be_lun, attr); 13368 mtx_lock(&softc->ctl_lock); 13369 if (val == UINT64_MAX) 13370 continue; 13371 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 13372 == SLBPPD_ARMING_INC) 13373 e = (val >= thres); 13374 else 13375 e = (val <= thres); 13376 if (e) 13377 break; 13378 } 13379 mtx_lock(&lun->lun_lock); 13380 if (e) { 13381 scsi_u64to8b((uint8_t *)&page->descr[i] - 13382 (uint8_t *)page, lun->ua_tpt_info); 13383 if (lun->lasttpt == 0 || 13384 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 13385 lun->lasttpt = time_uptime; 13386 ctl_est_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13387 set = 1; 13388 } else 13389 set = 0; 13390 } else { 13391 lun->lasttpt = 0; 13392 ctl_clr_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13393 set = -1; 13394 } 13395 mtx_unlock(&lun->lun_lock); 13396 if (set != 0 && 13397 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 13398 /* Send msg to other side. */ 13399 bzero(&msg.ua, sizeof(msg.ua)); 13400 msg.hdr.msg_type = CTL_MSG_UA; 13401 msg.hdr.nexus.initid = -1; 13402 msg.hdr.nexus.targ_port = -1; 13403 msg.hdr.nexus.targ_lun = lun->lun; 13404 msg.hdr.nexus.targ_mapped_lun = lun->lun; 13405 msg.ua.ua_all = 1; 13406 msg.ua.ua_set = (set > 0); 13407 msg.ua.ua_type = CTL_UA_THIN_PROV_THRES; 13408 memcpy(msg.ua.ua_info, lun->ua_tpt_info, 8); 13409 mtx_unlock(&softc->ctl_lock); // XXX 13410 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13411 sizeof(msg.ua), M_WAITOK); 13412 mtx_lock(&softc->ctl_lock); 13413 } 13414 } 13415 mtx_sleep(&softc->thresh_thread, &softc->ctl_lock, 13416 PDROP, "-", CTL_LBP_PERIOD * hz); 13417 } 13418 softc->thresh_thread = NULL; 13419 kthread_exit(); 13420} 13421 13422static void 13423ctl_enqueue_incoming(union ctl_io *io) 13424{ 13425 struct ctl_softc *softc = CTL_SOFTC(io); 13426 struct ctl_thread *thr; 13427 u_int idx; 13428 13429 idx = (io->io_hdr.nexus.targ_port * 127 + 13430 io->io_hdr.nexus.initid) % worker_threads; 13431 thr = &softc->threads[idx]; 13432 mtx_lock(&thr->queue_lock); 13433 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13434 mtx_unlock(&thr->queue_lock); 13435 wakeup(thr); 13436} 13437 13438static void 13439ctl_enqueue_rtr(union ctl_io *io) 13440{ 13441 struct ctl_softc *softc = CTL_SOFTC(io); 13442 struct ctl_thread *thr; 13443 13444 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13445 mtx_lock(&thr->queue_lock); 13446 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13447 mtx_unlock(&thr->queue_lock); 13448 wakeup(thr); 13449} 13450 13451static void 13452ctl_enqueue_done(union ctl_io *io) 13453{ 13454 struct ctl_softc *softc = CTL_SOFTC(io); 13455 struct ctl_thread *thr; 13456 13457 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13458 mtx_lock(&thr->queue_lock); 13459 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 13460 mtx_unlock(&thr->queue_lock); 13461 wakeup(thr); 13462} 13463 13464static void 13465ctl_enqueue_isc(union ctl_io *io) 13466{ 13467 struct ctl_softc *softc = CTL_SOFTC(io); 13468 struct ctl_thread *thr; 13469 13470 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13471 mtx_lock(&thr->queue_lock); 13472 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 13473 mtx_unlock(&thr->queue_lock); 13474 wakeup(thr); 13475} 13476 13477/* 13478 * vim: ts=8 13479 */ 13480