ctl.c revision 344992
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 344992 2019-03-11 01:44:37Z 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/sysctl.h> 66#include <vm/uma.h> 67 68#include <cam/cam.h> 69#include <cam/scsi/scsi_all.h> 70#include <cam/scsi/scsi_cd.h> 71#include <cam/scsi/scsi_da.h> 72#include <cam/ctl/ctl_io.h> 73#include <cam/ctl/ctl.h> 74#include <cam/ctl/ctl_frontend.h> 75#include <cam/ctl/ctl_util.h> 76#include <cam/ctl/ctl_backend.h> 77#include <cam/ctl/ctl_ioctl.h> 78#include <cam/ctl/ctl_ha.h> 79#include <cam/ctl/ctl_private.h> 80#include <cam/ctl/ctl_debug.h> 81#include <cam/ctl/ctl_scsi_all.h> 82#include <cam/ctl/ctl_error.h> 83 84struct ctl_softc *control_softc = NULL; 85 86/* 87 * Template mode pages. 88 */ 89 90/* 91 * Note that these are default values only. The actual values will be 92 * filled in when the user does a mode sense. 93 */ 94const static struct scsi_da_rw_recovery_page rw_er_page_default = { 95 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 96 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 97 /*byte3*/SMS_RWER_AWRE|SMS_RWER_ARRE, 98 /*read_retry_count*/0, 99 /*correction_span*/0, 100 /*head_offset_count*/0, 101 /*data_strobe_offset_cnt*/0, 102 /*byte8*/SMS_RWER_LBPERE, 103 /*write_retry_count*/0, 104 /*reserved2*/0, 105 /*recovery_time_limit*/{0, 0}, 106}; 107 108const static struct scsi_da_rw_recovery_page rw_er_page_changeable = { 109 /*page_code*/SMS_RW_ERROR_RECOVERY_PAGE, 110 /*page_length*/sizeof(struct scsi_da_rw_recovery_page) - 2, 111 /*byte3*/SMS_RWER_PER, 112 /*read_retry_count*/0, 113 /*correction_span*/0, 114 /*head_offset_count*/0, 115 /*data_strobe_offset_cnt*/0, 116 /*byte8*/SMS_RWER_LBPERE, 117 /*write_retry_count*/0, 118 /*reserved2*/0, 119 /*recovery_time_limit*/{0, 0}, 120}; 121 122const static struct scsi_format_page format_page_default = { 123 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 124 /*page_length*/sizeof(struct scsi_format_page) - 2, 125 /*tracks_per_zone*/ {0, 0}, 126 /*alt_sectors_per_zone*/ {0, 0}, 127 /*alt_tracks_per_zone*/ {0, 0}, 128 /*alt_tracks_per_lun*/ {0, 0}, 129 /*sectors_per_track*/ {(CTL_DEFAULT_SECTORS_PER_TRACK >> 8) & 0xff, 130 CTL_DEFAULT_SECTORS_PER_TRACK & 0xff}, 131 /*bytes_per_sector*/ {0, 0}, 132 /*interleave*/ {0, 0}, 133 /*track_skew*/ {0, 0}, 134 /*cylinder_skew*/ {0, 0}, 135 /*flags*/ SFP_HSEC, 136 /*reserved*/ {0, 0, 0} 137}; 138 139const static struct scsi_format_page format_page_changeable = { 140 /*page_code*/SMS_FORMAT_DEVICE_PAGE, 141 /*page_length*/sizeof(struct scsi_format_page) - 2, 142 /*tracks_per_zone*/ {0, 0}, 143 /*alt_sectors_per_zone*/ {0, 0}, 144 /*alt_tracks_per_zone*/ {0, 0}, 145 /*alt_tracks_per_lun*/ {0, 0}, 146 /*sectors_per_track*/ {0, 0}, 147 /*bytes_per_sector*/ {0, 0}, 148 /*interleave*/ {0, 0}, 149 /*track_skew*/ {0, 0}, 150 /*cylinder_skew*/ {0, 0}, 151 /*flags*/ 0, 152 /*reserved*/ {0, 0, 0} 153}; 154 155const static struct scsi_rigid_disk_page rigid_disk_page_default = { 156 /*page_code*/SMS_RIGID_DISK_PAGE, 157 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 158 /*cylinders*/ {0, 0, 0}, 159 /*heads*/ CTL_DEFAULT_HEADS, 160 /*start_write_precomp*/ {0, 0, 0}, 161 /*start_reduced_current*/ {0, 0, 0}, 162 /*step_rate*/ {0, 0}, 163 /*landing_zone_cylinder*/ {0, 0, 0}, 164 /*rpl*/ SRDP_RPL_DISABLED, 165 /*rotational_offset*/ 0, 166 /*reserved1*/ 0, 167 /*rotation_rate*/ {(CTL_DEFAULT_ROTATION_RATE >> 8) & 0xff, 168 CTL_DEFAULT_ROTATION_RATE & 0xff}, 169 /*reserved2*/ {0, 0} 170}; 171 172const static struct scsi_rigid_disk_page rigid_disk_page_changeable = { 173 /*page_code*/SMS_RIGID_DISK_PAGE, 174 /*page_length*/sizeof(struct scsi_rigid_disk_page) - 2, 175 /*cylinders*/ {0, 0, 0}, 176 /*heads*/ 0, 177 /*start_write_precomp*/ {0, 0, 0}, 178 /*start_reduced_current*/ {0, 0, 0}, 179 /*step_rate*/ {0, 0}, 180 /*landing_zone_cylinder*/ {0, 0, 0}, 181 /*rpl*/ 0, 182 /*rotational_offset*/ 0, 183 /*reserved1*/ 0, 184 /*rotation_rate*/ {0, 0}, 185 /*reserved2*/ {0, 0} 186}; 187 188const static struct scsi_da_verify_recovery_page verify_er_page_default = { 189 /*page_code*/SMS_VERIFY_ERROR_RECOVERY_PAGE, 190 /*page_length*/sizeof(struct scsi_da_verify_recovery_page) - 2, 191 /*byte3*/0, 192 /*read_retry_count*/0, 193 /*reserved*/{ 0, 0, 0, 0, 0, 0 }, 194 /*recovery_time_limit*/{0, 0}, 195}; 196 197const static struct scsi_da_verify_recovery_page verify_er_page_changeable = { 198 /*page_code*/SMS_VERIFY_ERROR_RECOVERY_PAGE, 199 /*page_length*/sizeof(struct scsi_da_verify_recovery_page) - 2, 200 /*byte3*/SMS_VER_PER, 201 /*read_retry_count*/0, 202 /*reserved*/{ 0, 0, 0, 0, 0, 0 }, 203 /*recovery_time_limit*/{0, 0}, 204}; 205 206const static struct scsi_caching_page caching_page_default = { 207 /*page_code*/SMS_CACHING_PAGE, 208 /*page_length*/sizeof(struct scsi_caching_page) - 2, 209 /*flags1*/ SCP_DISC | SCP_WCE, 210 /*ret_priority*/ 0, 211 /*disable_pf_transfer_len*/ {0xff, 0xff}, 212 /*min_prefetch*/ {0, 0}, 213 /*max_prefetch*/ {0xff, 0xff}, 214 /*max_pf_ceiling*/ {0xff, 0xff}, 215 /*flags2*/ 0, 216 /*cache_segments*/ 0, 217 /*cache_seg_size*/ {0, 0}, 218 /*reserved*/ 0, 219 /*non_cache_seg_size*/ {0, 0, 0} 220}; 221 222const static struct scsi_caching_page caching_page_changeable = { 223 /*page_code*/SMS_CACHING_PAGE, 224 /*page_length*/sizeof(struct scsi_caching_page) - 2, 225 /*flags1*/ SCP_WCE | SCP_RCD, 226 /*ret_priority*/ 0, 227 /*disable_pf_transfer_len*/ {0, 0}, 228 /*min_prefetch*/ {0, 0}, 229 /*max_prefetch*/ {0, 0}, 230 /*max_pf_ceiling*/ {0, 0}, 231 /*flags2*/ 0, 232 /*cache_segments*/ 0, 233 /*cache_seg_size*/ {0, 0}, 234 /*reserved*/ 0, 235 /*non_cache_seg_size*/ {0, 0, 0} 236}; 237 238const static struct scsi_control_page control_page_default = { 239 /*page_code*/SMS_CONTROL_MODE_PAGE, 240 /*page_length*/sizeof(struct scsi_control_page) - 2, 241 /*rlec*/0, 242 /*queue_flags*/SCP_QUEUE_ALG_RESTRICTED, 243 /*eca_and_aen*/0, 244 /*flags4*/SCP_TAS, 245 /*aen_holdoff_period*/{0, 0}, 246 /*busy_timeout_period*/{0, 0}, 247 /*extended_selftest_completion_time*/{0, 0} 248}; 249 250const static struct scsi_control_page control_page_changeable = { 251 /*page_code*/SMS_CONTROL_MODE_PAGE, 252 /*page_length*/sizeof(struct scsi_control_page) - 2, 253 /*rlec*/SCP_DSENSE, 254 /*queue_flags*/SCP_QUEUE_ALG_MASK | SCP_NUAR, 255 /*eca_and_aen*/SCP_SWP, 256 /*flags4*/0, 257 /*aen_holdoff_period*/{0, 0}, 258 /*busy_timeout_period*/{0, 0}, 259 /*extended_selftest_completion_time*/{0, 0} 260}; 261 262#define CTL_CEM_LEN (sizeof(struct scsi_control_ext_page) - 4) 263 264const static struct scsi_control_ext_page control_ext_page_default = { 265 /*page_code*/SMS_CONTROL_MODE_PAGE | SMPH_SPF, 266 /*subpage_code*/0x01, 267 /*page_length*/{CTL_CEM_LEN >> 8, CTL_CEM_LEN}, 268 /*flags*/0, 269 /*prio*/0, 270 /*max_sense*/0 271}; 272 273const static struct scsi_control_ext_page control_ext_page_changeable = { 274 /*page_code*/SMS_CONTROL_MODE_PAGE | SMPH_SPF, 275 /*subpage_code*/0x01, 276 /*page_length*/{CTL_CEM_LEN >> 8, CTL_CEM_LEN}, 277 /*flags*/0, 278 /*prio*/0, 279 /*max_sense*/0xff 280}; 281 282const static struct scsi_info_exceptions_page ie_page_default = { 283 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 284 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 285 /*info_flags*/SIEP_FLAGS_EWASC, 286 /*mrie*/SIEP_MRIE_NO, 287 /*interval_timer*/{0, 0, 0, 0}, 288 /*report_count*/{0, 0, 0, 1} 289}; 290 291const static struct scsi_info_exceptions_page ie_page_changeable = { 292 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE, 293 /*page_length*/sizeof(struct scsi_info_exceptions_page) - 2, 294 /*info_flags*/SIEP_FLAGS_EWASC | SIEP_FLAGS_DEXCPT | SIEP_FLAGS_TEST | 295 SIEP_FLAGS_LOGERR, 296 /*mrie*/0x0f, 297 /*interval_timer*/{0xff, 0xff, 0xff, 0xff}, 298 /*report_count*/{0xff, 0xff, 0xff, 0xff} 299}; 300 301#define CTL_LBPM_LEN (sizeof(struct ctl_logical_block_provisioning_page) - 4) 302 303const static struct ctl_logical_block_provisioning_page lbp_page_default = {{ 304 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 305 /*subpage_code*/0x02, 306 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 307 /*flags*/0, 308 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 309 /*descr*/{}}, 310 {{/*flags*/0, 311 /*resource*/0x01, 312 /*reserved*/{0, 0}, 313 /*count*/{0, 0, 0, 0}}, 314 {/*flags*/0, 315 /*resource*/0x02, 316 /*reserved*/{0, 0}, 317 /*count*/{0, 0, 0, 0}}, 318 {/*flags*/0, 319 /*resource*/0xf1, 320 /*reserved*/{0, 0}, 321 /*count*/{0, 0, 0, 0}}, 322 {/*flags*/0, 323 /*resource*/0xf2, 324 /*reserved*/{0, 0}, 325 /*count*/{0, 0, 0, 0}} 326 } 327}; 328 329const static struct ctl_logical_block_provisioning_page lbp_page_changeable = {{ 330 /*page_code*/SMS_INFO_EXCEPTIONS_PAGE | SMPH_SPF, 331 /*subpage_code*/0x02, 332 /*page_length*/{CTL_LBPM_LEN >> 8, CTL_LBPM_LEN}, 333 /*flags*/SLBPP_SITUA, 334 /*reserved*/{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 335 /*descr*/{}}, 336 {{/*flags*/0, 337 /*resource*/0, 338 /*reserved*/{0, 0}, 339 /*count*/{0, 0, 0, 0}}, 340 {/*flags*/0, 341 /*resource*/0, 342 /*reserved*/{0, 0}, 343 /*count*/{0, 0, 0, 0}}, 344 {/*flags*/0, 345 /*resource*/0, 346 /*reserved*/{0, 0}, 347 /*count*/{0, 0, 0, 0}}, 348 {/*flags*/0, 349 /*resource*/0, 350 /*reserved*/{0, 0}, 351 /*count*/{0, 0, 0, 0}} 352 } 353}; 354 355const static struct scsi_cddvd_capabilities_page cddvd_page_default = { 356 /*page_code*/SMS_CDDVD_CAPS_PAGE, 357 /*page_length*/sizeof(struct scsi_cddvd_capabilities_page) - 2, 358 /*caps1*/0x3f, 359 /*caps2*/0x00, 360 /*caps3*/0xf0, 361 /*caps4*/0x00, 362 /*caps5*/0x29, 363 /*caps6*/0x00, 364 /*obsolete*/{0, 0}, 365 /*nvol_levels*/{0, 0}, 366 /*buffer_size*/{8, 0}, 367 /*obsolete2*/{0, 0}, 368 /*reserved*/0, 369 /*digital*/0, 370 /*obsolete3*/0, 371 /*copy_management*/0, 372 /*reserved2*/0, 373 /*rotation_control*/0, 374 /*cur_write_speed*/0, 375 /*num_speed_descr*/0, 376}; 377 378const static struct scsi_cddvd_capabilities_page cddvd_page_changeable = { 379 /*page_code*/SMS_CDDVD_CAPS_PAGE, 380 /*page_length*/sizeof(struct scsi_cddvd_capabilities_page) - 2, 381 /*caps1*/0, 382 /*caps2*/0, 383 /*caps3*/0, 384 /*caps4*/0, 385 /*caps5*/0, 386 /*caps6*/0, 387 /*obsolete*/{0, 0}, 388 /*nvol_levels*/{0, 0}, 389 /*buffer_size*/{0, 0}, 390 /*obsolete2*/{0, 0}, 391 /*reserved*/0, 392 /*digital*/0, 393 /*obsolete3*/0, 394 /*copy_management*/0, 395 /*reserved2*/0, 396 /*rotation_control*/0, 397 /*cur_write_speed*/0, 398 /*num_speed_descr*/0, 399}; 400 401SYSCTL_NODE(_kern_cam, OID_AUTO, ctl, CTLFLAG_RD, 0, "CAM Target Layer"); 402static int worker_threads = -1; 403SYSCTL_INT(_kern_cam_ctl, OID_AUTO, worker_threads, CTLFLAG_RDTUN, 404 &worker_threads, 1, "Number of worker threads"); 405static int ctl_debug = CTL_DEBUG_NONE; 406SYSCTL_INT(_kern_cam_ctl, OID_AUTO, debug, CTLFLAG_RWTUN, 407 &ctl_debug, 0, "Enabled debug flags"); 408static int ctl_lun_map_size = 1024; 409SYSCTL_INT(_kern_cam_ctl, OID_AUTO, lun_map_size, CTLFLAG_RWTUN, 410 &ctl_lun_map_size, 0, "Size of per-port LUN map (max LUN + 1)"); 411#ifdef CTL_TIME_IO 412static int ctl_time_io_secs = CTL_TIME_IO_DEFAULT_SECS; 413SYSCTL_INT(_kern_cam_ctl, OID_AUTO, time_io_secs, CTLFLAG_RWTUN, 414 &ctl_time_io_secs, 0, "Log requests taking more seconds"); 415#endif 416 417/* 418 * Maximum number of LUNs we support. MUST be a power of 2. 419 */ 420#define CTL_DEFAULT_MAX_LUNS 1024 421static int ctl_max_luns = CTL_DEFAULT_MAX_LUNS; 422TUNABLE_INT("kern.cam.ctl.max_luns", &ctl_max_luns); 423SYSCTL_INT(_kern_cam_ctl, OID_AUTO, max_luns, CTLFLAG_RDTUN, 424 &ctl_max_luns, CTL_DEFAULT_MAX_LUNS, "Maximum number of LUNs"); 425 426/* 427 * Maximum number of ports registered at one time. 428 */ 429#define CTL_DEFAULT_MAX_PORTS 256 430static int ctl_max_ports = CTL_DEFAULT_MAX_PORTS; 431TUNABLE_INT("kern.cam.ctl.max_ports", &ctl_max_ports); 432SYSCTL_INT(_kern_cam_ctl, OID_AUTO, max_ports, CTLFLAG_RDTUN, 433 &ctl_max_ports, CTL_DEFAULT_MAX_LUNS, "Maximum number of ports"); 434 435/* 436 * Maximum number of initiators we support. 437 */ 438#define CTL_MAX_INITIATORS (CTL_MAX_INIT_PER_PORT * ctl_max_ports) 439 440/* 441 * Supported pages (0x00), Serial number (0x80), Device ID (0x83), 442 * Extended INQUIRY Data (0x86), Mode Page Policy (0x87), 443 * SCSI Ports (0x88), Third-party Copy (0x8F), Block limits (0xB0), 444 * Block Device Characteristics (0xB1) and Logical Block Provisioning (0xB2) 445 */ 446#define SCSI_EVPD_NUM_SUPPORTED_PAGES 10 447 448static void ctl_isc_event_handler(ctl_ha_channel chanel, ctl_ha_event event, 449 int param); 450static void ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest); 451static void ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest); 452static int ctl_init(void); 453static int ctl_shutdown(void); 454static int ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td); 455static int ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td); 456static void ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio); 457static void ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 458 struct ctl_ooa *ooa_hdr, 459 struct ctl_ooa_entry *kern_entries); 460static int ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 461 struct thread *td); 462static int ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *lun, 463 struct ctl_be_lun *be_lun); 464static int ctl_free_lun(struct ctl_lun *lun); 465static void ctl_create_lun(struct ctl_be_lun *be_lun); 466 467static int ctl_do_mode_select(union ctl_io *io); 468static int ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, 469 uint64_t res_key, uint64_t sa_res_key, 470 uint8_t type, uint32_t residx, 471 struct ctl_scsiio *ctsio, 472 struct scsi_per_res_out *cdb, 473 struct scsi_per_res_out_parms* param); 474static void ctl_pro_preempt_other(struct ctl_lun *lun, 475 union ctl_ha_msg *msg); 476static void ctl_hndl_per_res_out_on_other_sc(union ctl_io *io); 477static int ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len); 478static int ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len); 479static int ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len); 480static int ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len); 481static int ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len); 482static int ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, 483 int alloc_len); 484static int ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, 485 int alloc_len); 486static int ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len); 487static int ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len); 488static int ctl_inquiry_evpd(struct ctl_scsiio *ctsio); 489static int ctl_inquiry_std(struct ctl_scsiio *ctsio); 490static int ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len); 491static ctl_action ctl_extent_check(union ctl_io *io1, union ctl_io *io2, 492 bool seq); 493static ctl_action ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2); 494static ctl_action ctl_check_for_blockage(struct ctl_lun *lun, 495 union ctl_io *pending_io, union ctl_io *ooa_io); 496static ctl_action ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 497 union ctl_io *starting_io); 498static int ctl_check_blocked(struct ctl_lun *lun); 499static int ctl_scsiio_lun_check(struct ctl_lun *lun, 500 const struct ctl_cmd_entry *entry, 501 struct ctl_scsiio *ctsio); 502static void ctl_failover_lun(union ctl_io *io); 503static int ctl_scsiio_precheck(struct ctl_softc *ctl_softc, 504 struct ctl_scsiio *ctsio); 505static int ctl_scsiio(struct ctl_scsiio *ctsio); 506 507static int ctl_target_reset(union ctl_io *io); 508static void ctl_do_lun_reset(struct ctl_lun *lun, uint32_t initidx, 509 ctl_ua_type ua_type); 510static int ctl_lun_reset(union ctl_io *io); 511static int ctl_abort_task(union ctl_io *io); 512static int ctl_abort_task_set(union ctl_io *io); 513static int ctl_query_task(union ctl_io *io, int task_set); 514static void ctl_i_t_nexus_loss(struct ctl_softc *softc, uint32_t initidx, 515 ctl_ua_type ua_type); 516static int ctl_i_t_nexus_reset(union ctl_io *io); 517static int ctl_query_async_event(union ctl_io *io); 518static void ctl_run_task(union ctl_io *io); 519#ifdef CTL_IO_DELAY 520static void ctl_datamove_timer_wakeup(void *arg); 521static void ctl_done_timer_wakeup(void *arg); 522#endif /* CTL_IO_DELAY */ 523 524static void ctl_send_datamove_done(union ctl_io *io, int have_lock); 525static void ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq); 526static int ctl_datamove_remote_dm_write_cb(union ctl_io *io); 527static void ctl_datamove_remote_write(union ctl_io *io); 528static int ctl_datamove_remote_dm_read_cb(union ctl_io *io); 529static void ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq); 530static int ctl_datamove_remote_sgl_setup(union ctl_io *io); 531static int ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 532 ctl_ha_dt_cb callback); 533static void ctl_datamove_remote_read(union ctl_io *io); 534static void ctl_datamove_remote(union ctl_io *io); 535static void ctl_process_done(union ctl_io *io); 536static void ctl_lun_thread(void *arg); 537static void ctl_thresh_thread(void *arg); 538static void ctl_work_thread(void *arg); 539static void ctl_enqueue_incoming(union ctl_io *io); 540static void ctl_enqueue_rtr(union ctl_io *io); 541static void ctl_enqueue_done(union ctl_io *io); 542static void ctl_enqueue_isc(union ctl_io *io); 543static const struct ctl_cmd_entry * 544 ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa); 545static const struct ctl_cmd_entry * 546 ctl_validate_command(struct ctl_scsiio *ctsio); 547static int ctl_cmd_applicable(uint8_t lun_type, 548 const struct ctl_cmd_entry *entry); 549static int ctl_ha_init(void); 550static int ctl_ha_shutdown(void); 551 552static uint64_t ctl_get_prkey(struct ctl_lun *lun, uint32_t residx); 553static void ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx); 554static void ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx); 555static void ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key); 556 557/* 558 * Load the serialization table. This isn't very pretty, but is probably 559 * the easiest way to do it. 560 */ 561#include "ctl_ser_table.c" 562 563/* 564 * We only need to define open, close and ioctl routines for this driver. 565 */ 566static struct cdevsw ctl_cdevsw = { 567 .d_version = D_VERSION, 568 .d_flags = 0, 569 .d_open = ctl_open, 570 .d_close = ctl_close, 571 .d_ioctl = ctl_ioctl, 572 .d_name = "ctl", 573}; 574 575 576MALLOC_DEFINE(M_CTL, "ctlmem", "Memory used for CTL"); 577 578static int ctl_module_event_handler(module_t, int /*modeventtype_t*/, void *); 579 580static moduledata_t ctl_moduledata = { 581 "ctl", 582 ctl_module_event_handler, 583 NULL 584}; 585 586DECLARE_MODULE(ctl, ctl_moduledata, SI_SUB_CONFIGURE, SI_ORDER_THIRD); 587MODULE_VERSION(ctl, 1); 588 589static struct ctl_frontend ha_frontend = 590{ 591 .name = "ha", 592 .init = ctl_ha_init, 593 .shutdown = ctl_ha_shutdown, 594}; 595 596static int 597ctl_ha_init(void) 598{ 599 struct ctl_softc *softc = control_softc; 600 601 if (ctl_pool_create(softc, "othersc", CTL_POOL_ENTRIES_OTHER_SC, 602 &softc->othersc_pool) != 0) 603 return (ENOMEM); 604 if (ctl_ha_msg_init(softc) != CTL_HA_STATUS_SUCCESS) { 605 ctl_pool_free(softc->othersc_pool); 606 return (EIO); 607 } 608 if (ctl_ha_msg_register(CTL_HA_CHAN_CTL, ctl_isc_event_handler) 609 != CTL_HA_STATUS_SUCCESS) { 610 ctl_ha_msg_destroy(softc); 611 ctl_pool_free(softc->othersc_pool); 612 return (EIO); 613 } 614 return (0); 615}; 616 617static int 618ctl_ha_shutdown(void) 619{ 620 struct ctl_softc *softc = control_softc; 621 struct ctl_port *port; 622 623 ctl_ha_msg_shutdown(softc); 624 if (ctl_ha_msg_deregister(CTL_HA_CHAN_CTL) != CTL_HA_STATUS_SUCCESS) 625 return (EIO); 626 if (ctl_ha_msg_destroy(softc) != CTL_HA_STATUS_SUCCESS) 627 return (EIO); 628 ctl_pool_free(softc->othersc_pool); 629 while ((port = STAILQ_FIRST(&ha_frontend.port_list)) != NULL) { 630 ctl_port_deregister(port); 631 free(port->port_name, M_CTL); 632 free(port, M_CTL); 633 } 634 return (0); 635}; 636 637static void 638ctl_ha_datamove(union ctl_io *io) 639{ 640 struct ctl_lun *lun = CTL_LUN(io); 641 struct ctl_sg_entry *sgl; 642 union ctl_ha_msg msg; 643 uint32_t sg_entries_sent; 644 int do_sg_copy, i, j; 645 646 memset(&msg.dt, 0, sizeof(msg.dt)); 647 msg.hdr.msg_type = CTL_MSG_DATAMOVE; 648 msg.hdr.original_sc = io->io_hdr.remote_io; 649 msg.hdr.serializing_sc = io; 650 msg.hdr.nexus = io->io_hdr.nexus; 651 msg.hdr.status = io->io_hdr.status; 652 msg.dt.flags = io->io_hdr.flags; 653 654 /* 655 * We convert everything into a S/G list here. We can't 656 * pass by reference, only by value between controllers. 657 * So we can't pass a pointer to the S/G list, only as many 658 * S/G entries as we can fit in here. If it's possible for 659 * us to get more than CTL_HA_MAX_SG_ENTRIES S/G entries, 660 * then we need to break this up into multiple transfers. 661 */ 662 if (io->scsiio.kern_sg_entries == 0) { 663 msg.dt.kern_sg_entries = 1; 664#if 0 665 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 666 msg.dt.sg_list[0].addr = io->scsiio.kern_data_ptr; 667 } else { 668 /* XXX KDM use busdma here! */ 669 msg.dt.sg_list[0].addr = 670 (void *)vtophys(io->scsiio.kern_data_ptr); 671 } 672#else 673 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 674 ("HA does not support BUS_ADDR")); 675 msg.dt.sg_list[0].addr = io->scsiio.kern_data_ptr; 676#endif 677 msg.dt.sg_list[0].len = io->scsiio.kern_data_len; 678 do_sg_copy = 0; 679 } else { 680 msg.dt.kern_sg_entries = io->scsiio.kern_sg_entries; 681 do_sg_copy = 1; 682 } 683 684 msg.dt.kern_data_len = io->scsiio.kern_data_len; 685 msg.dt.kern_total_len = io->scsiio.kern_total_len; 686 msg.dt.kern_data_resid = io->scsiio.kern_data_resid; 687 msg.dt.kern_rel_offset = io->scsiio.kern_rel_offset; 688 msg.dt.sg_sequence = 0; 689 690 /* 691 * Loop until we've sent all of the S/G entries. On the 692 * other end, we'll recompose these S/G entries into one 693 * contiguous list before processing. 694 */ 695 for (sg_entries_sent = 0; sg_entries_sent < msg.dt.kern_sg_entries; 696 msg.dt.sg_sequence++) { 697 msg.dt.cur_sg_entries = MIN((sizeof(msg.dt.sg_list) / 698 sizeof(msg.dt.sg_list[0])), 699 msg.dt.kern_sg_entries - sg_entries_sent); 700 if (do_sg_copy != 0) { 701 sgl = (struct ctl_sg_entry *)io->scsiio.kern_data_ptr; 702 for (i = sg_entries_sent, j = 0; 703 i < msg.dt.cur_sg_entries; i++, j++) { 704#if 0 705 if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR) { 706 msg.dt.sg_list[j].addr = sgl[i].addr; 707 } else { 708 /* XXX KDM use busdma here! */ 709 msg.dt.sg_list[j].addr = 710 (void *)vtophys(sgl[i].addr); 711 } 712#else 713 KASSERT((io->io_hdr.flags & 714 CTL_FLAG_BUS_ADDR) == 0, 715 ("HA does not support BUS_ADDR")); 716 msg.dt.sg_list[j].addr = sgl[i].addr; 717#endif 718 msg.dt.sg_list[j].len = sgl[i].len; 719 } 720 } 721 722 sg_entries_sent += msg.dt.cur_sg_entries; 723 msg.dt.sg_last = (sg_entries_sent >= msg.dt.kern_sg_entries); 724 if (ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 725 sizeof(msg.dt) - sizeof(msg.dt.sg_list) + 726 sizeof(struct ctl_sg_entry) * msg.dt.cur_sg_entries, 727 M_WAITOK) > CTL_HA_STATUS_SUCCESS) { 728 io->io_hdr.port_status = 31341; 729 io->scsiio.be_move_done(io); 730 return; 731 } 732 msg.dt.sent_sg_entries = sg_entries_sent; 733 } 734 735 /* 736 * Officially handover the request from us to peer. 737 * If failover has just happened, then we must return error. 738 * If failover happen just after, then it is not our problem. 739 */ 740 if (lun) 741 mtx_lock(&lun->lun_lock); 742 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 743 if (lun) 744 mtx_unlock(&lun->lun_lock); 745 io->io_hdr.port_status = 31342; 746 io->scsiio.be_move_done(io); 747 return; 748 } 749 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 750 io->io_hdr.flags |= CTL_FLAG_DMA_INPROG; 751 if (lun) 752 mtx_unlock(&lun->lun_lock); 753} 754 755static void 756ctl_ha_done(union ctl_io *io) 757{ 758 union ctl_ha_msg msg; 759 760 if (io->io_hdr.io_type == CTL_IO_SCSI) { 761 memset(&msg, 0, sizeof(msg)); 762 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 763 msg.hdr.original_sc = io->io_hdr.remote_io; 764 msg.hdr.nexus = io->io_hdr.nexus; 765 msg.hdr.status = io->io_hdr.status; 766 msg.scsi.scsi_status = io->scsiio.scsi_status; 767 msg.scsi.tag_num = io->scsiio.tag_num; 768 msg.scsi.tag_type = io->scsiio.tag_type; 769 msg.scsi.sense_len = io->scsiio.sense_len; 770 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 771 io->scsiio.sense_len); 772 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 773 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 774 msg.scsi.sense_len, M_WAITOK); 775 } 776 ctl_free_io(io); 777} 778 779static void 780ctl_isc_handler_finish_xfer(struct ctl_softc *ctl_softc, 781 union ctl_ha_msg *msg_info) 782{ 783 struct ctl_scsiio *ctsio; 784 785 if (msg_info->hdr.original_sc == NULL) { 786 printf("%s: original_sc == NULL!\n", __func__); 787 /* XXX KDM now what? */ 788 return; 789 } 790 791 ctsio = &msg_info->hdr.original_sc->scsiio; 792 ctsio->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 793 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 794 ctsio->io_hdr.status = msg_info->hdr.status; 795 ctsio->scsi_status = msg_info->scsi.scsi_status; 796 ctsio->sense_len = msg_info->scsi.sense_len; 797 memcpy(&ctsio->sense_data, &msg_info->scsi.sense_data, 798 msg_info->scsi.sense_len); 799 ctl_enqueue_isc((union ctl_io *)ctsio); 800} 801 802static void 803ctl_isc_handler_finish_ser_only(struct ctl_softc *ctl_softc, 804 union ctl_ha_msg *msg_info) 805{ 806 struct ctl_scsiio *ctsio; 807 808 if (msg_info->hdr.serializing_sc == NULL) { 809 printf("%s: serializing_sc == NULL!\n", __func__); 810 /* XXX KDM now what? */ 811 return; 812 } 813 814 ctsio = &msg_info->hdr.serializing_sc->scsiio; 815 ctsio->io_hdr.msg_type = CTL_MSG_FINISH_IO; 816 ctl_enqueue_isc((union ctl_io *)ctsio); 817} 818 819void 820ctl_isc_announce_lun(struct ctl_lun *lun) 821{ 822 struct ctl_softc *softc = lun->ctl_softc; 823 union ctl_ha_msg *msg; 824 struct ctl_ha_msg_lun_pr_key pr_key; 825 int i, k; 826 827 if (softc->ha_link != CTL_HA_LINK_ONLINE) 828 return; 829 mtx_lock(&lun->lun_lock); 830 i = sizeof(msg->lun); 831 if (lun->lun_devid) 832 i += lun->lun_devid->len; 833 i += sizeof(pr_key) * lun->pr_key_count; 834alloc: 835 mtx_unlock(&lun->lun_lock); 836 msg = malloc(i, M_CTL, M_WAITOK); 837 mtx_lock(&lun->lun_lock); 838 k = sizeof(msg->lun); 839 if (lun->lun_devid) 840 k += lun->lun_devid->len; 841 k += sizeof(pr_key) * lun->pr_key_count; 842 if (i < k) { 843 free(msg, M_CTL); 844 i = k; 845 goto alloc; 846 } 847 bzero(&msg->lun, sizeof(msg->lun)); 848 msg->hdr.msg_type = CTL_MSG_LUN_SYNC; 849 msg->hdr.nexus.targ_lun = lun->lun; 850 msg->hdr.nexus.targ_mapped_lun = lun->lun; 851 msg->lun.flags = lun->flags; 852 msg->lun.pr_generation = lun->pr_generation; 853 msg->lun.pr_res_idx = lun->pr_res_idx; 854 msg->lun.pr_res_type = lun->pr_res_type; 855 msg->lun.pr_key_count = lun->pr_key_count; 856 i = 0; 857 if (lun->lun_devid) { 858 msg->lun.lun_devid_len = lun->lun_devid->len; 859 memcpy(&msg->lun.data[i], lun->lun_devid->data, 860 msg->lun.lun_devid_len); 861 i += msg->lun.lun_devid_len; 862 } 863 for (k = 0; k < CTL_MAX_INITIATORS; k++) { 864 if ((pr_key.pr_key = ctl_get_prkey(lun, k)) == 0) 865 continue; 866 pr_key.pr_iid = k; 867 memcpy(&msg->lun.data[i], &pr_key, sizeof(pr_key)); 868 i += sizeof(pr_key); 869 } 870 mtx_unlock(&lun->lun_lock); 871 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 872 M_WAITOK); 873 free(msg, M_CTL); 874 875 if (lun->flags & CTL_LUN_PRIMARY_SC) { 876 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 877 ctl_isc_announce_mode(lun, -1, 878 lun->mode_pages.index[i].page_code & SMPH_PC_MASK, 879 lun->mode_pages.index[i].subpage); 880 } 881 } 882} 883 884void 885ctl_isc_announce_port(struct ctl_port *port) 886{ 887 struct ctl_softc *softc = port->ctl_softc; 888 union ctl_ha_msg *msg; 889 int i; 890 891 if (port->targ_port < softc->port_min || 892 port->targ_port >= softc->port_max || 893 softc->ha_link != CTL_HA_LINK_ONLINE) 894 return; 895 i = sizeof(msg->port) + strlen(port->port_name) + 1; 896 if (port->lun_map) 897 i += port->lun_map_size * sizeof(uint32_t); 898 if (port->port_devid) 899 i += port->port_devid->len; 900 if (port->target_devid) 901 i += port->target_devid->len; 902 if (port->init_devid) 903 i += port->init_devid->len; 904 msg = malloc(i, M_CTL, M_WAITOK); 905 bzero(&msg->port, sizeof(msg->port)); 906 msg->hdr.msg_type = CTL_MSG_PORT_SYNC; 907 msg->hdr.nexus.targ_port = port->targ_port; 908 msg->port.port_type = port->port_type; 909 msg->port.physical_port = port->physical_port; 910 msg->port.virtual_port = port->virtual_port; 911 msg->port.status = port->status; 912 i = 0; 913 msg->port.name_len = sprintf(&msg->port.data[i], 914 "%d:%s", softc->ha_id, port->port_name) + 1; 915 i += msg->port.name_len; 916 if (port->lun_map) { 917 msg->port.lun_map_len = port->lun_map_size * sizeof(uint32_t); 918 memcpy(&msg->port.data[i], port->lun_map, 919 msg->port.lun_map_len); 920 i += msg->port.lun_map_len; 921 } 922 if (port->port_devid) { 923 msg->port.port_devid_len = port->port_devid->len; 924 memcpy(&msg->port.data[i], port->port_devid->data, 925 msg->port.port_devid_len); 926 i += msg->port.port_devid_len; 927 } 928 if (port->target_devid) { 929 msg->port.target_devid_len = port->target_devid->len; 930 memcpy(&msg->port.data[i], port->target_devid->data, 931 msg->port.target_devid_len); 932 i += msg->port.target_devid_len; 933 } 934 if (port->init_devid) { 935 msg->port.init_devid_len = port->init_devid->len; 936 memcpy(&msg->port.data[i], port->init_devid->data, 937 msg->port.init_devid_len); 938 i += msg->port.init_devid_len; 939 } 940 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->port, sizeof(msg->port) + i, 941 M_WAITOK); 942 free(msg, M_CTL); 943} 944 945void 946ctl_isc_announce_iid(struct ctl_port *port, int iid) 947{ 948 struct ctl_softc *softc = port->ctl_softc; 949 union ctl_ha_msg *msg; 950 int i, l; 951 952 if (port->targ_port < softc->port_min || 953 port->targ_port >= softc->port_max || 954 softc->ha_link != CTL_HA_LINK_ONLINE) 955 return; 956 mtx_lock(&softc->ctl_lock); 957 i = sizeof(msg->iid); 958 l = 0; 959 if (port->wwpn_iid[iid].name) 960 l = strlen(port->wwpn_iid[iid].name) + 1; 961 i += l; 962 msg = malloc(i, M_CTL, M_NOWAIT); 963 if (msg == NULL) { 964 mtx_unlock(&softc->ctl_lock); 965 return; 966 } 967 bzero(&msg->iid, sizeof(msg->iid)); 968 msg->hdr.msg_type = CTL_MSG_IID_SYNC; 969 msg->hdr.nexus.targ_port = port->targ_port; 970 msg->hdr.nexus.initid = iid; 971 msg->iid.in_use = port->wwpn_iid[iid].in_use; 972 msg->iid.name_len = l; 973 msg->iid.wwpn = port->wwpn_iid[iid].wwpn; 974 if (port->wwpn_iid[iid].name) 975 strlcpy(msg->iid.data, port->wwpn_iid[iid].name, l); 976 mtx_unlock(&softc->ctl_lock); 977 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg->iid, i, M_NOWAIT); 978 free(msg, M_CTL); 979} 980 981void 982ctl_isc_announce_mode(struct ctl_lun *lun, uint32_t initidx, 983 uint8_t page, uint8_t subpage) 984{ 985 struct ctl_softc *softc = lun->ctl_softc; 986 union ctl_ha_msg msg; 987 u_int i; 988 989 if (softc->ha_link != CTL_HA_LINK_ONLINE) 990 return; 991 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 992 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) == 993 page && lun->mode_pages.index[i].subpage == subpage) 994 break; 995 } 996 if (i == CTL_NUM_MODE_PAGES) 997 return; 998 999 /* Don't try to replicate pages not present on this device. */ 1000 if (lun->mode_pages.index[i].page_data == NULL) 1001 return; 1002 1003 bzero(&msg.mode, sizeof(msg.mode)); 1004 msg.hdr.msg_type = CTL_MSG_MODE_SYNC; 1005 msg.hdr.nexus.targ_port = initidx / CTL_MAX_INIT_PER_PORT; 1006 msg.hdr.nexus.initid = initidx % CTL_MAX_INIT_PER_PORT; 1007 msg.hdr.nexus.targ_lun = lun->lun; 1008 msg.hdr.nexus.targ_mapped_lun = lun->lun; 1009 msg.mode.page_code = page; 1010 msg.mode.subpage = subpage; 1011 msg.mode.page_len = lun->mode_pages.index[i].page_len; 1012 memcpy(msg.mode.data, lun->mode_pages.index[i].page_data, 1013 msg.mode.page_len); 1014 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg.mode, sizeof(msg.mode), 1015 M_WAITOK); 1016} 1017 1018static void 1019ctl_isc_ha_link_up(struct ctl_softc *softc) 1020{ 1021 struct ctl_port *port; 1022 struct ctl_lun *lun; 1023 union ctl_ha_msg msg; 1024 int i; 1025 1026 /* Announce this node parameters to peer for validation. */ 1027 msg.login.msg_type = CTL_MSG_LOGIN; 1028 msg.login.version = CTL_HA_VERSION; 1029 msg.login.ha_mode = softc->ha_mode; 1030 msg.login.ha_id = softc->ha_id; 1031 msg.login.max_luns = ctl_max_luns; 1032 msg.login.max_ports = ctl_max_ports; 1033 msg.login.max_init_per_port = CTL_MAX_INIT_PER_PORT; 1034 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg.login, sizeof(msg.login), 1035 M_WAITOK); 1036 1037 STAILQ_FOREACH(port, &softc->port_list, links) { 1038 ctl_isc_announce_port(port); 1039 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1040 if (port->wwpn_iid[i].in_use) 1041 ctl_isc_announce_iid(port, i); 1042 } 1043 } 1044 STAILQ_FOREACH(lun, &softc->lun_list, links) 1045 ctl_isc_announce_lun(lun); 1046} 1047 1048static void 1049ctl_isc_ha_link_down(struct ctl_softc *softc) 1050{ 1051 struct ctl_port *port; 1052 struct ctl_lun *lun; 1053 union ctl_io *io; 1054 int i; 1055 1056 mtx_lock(&softc->ctl_lock); 1057 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1058 mtx_lock(&lun->lun_lock); 1059 if (lun->flags & CTL_LUN_PEER_SC_PRIMARY) { 1060 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 1061 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 1062 } 1063 mtx_unlock(&lun->lun_lock); 1064 1065 mtx_unlock(&softc->ctl_lock); 1066 io = ctl_alloc_io(softc->othersc_pool); 1067 mtx_lock(&softc->ctl_lock); 1068 ctl_zero_io(io); 1069 io->io_hdr.msg_type = CTL_MSG_FAILOVER; 1070 io->io_hdr.nexus.targ_mapped_lun = lun->lun; 1071 ctl_enqueue_isc(io); 1072 } 1073 1074 STAILQ_FOREACH(port, &softc->port_list, links) { 1075 if (port->targ_port >= softc->port_min && 1076 port->targ_port < softc->port_max) 1077 continue; 1078 port->status &= ~CTL_PORT_STATUS_ONLINE; 1079 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1080 port->wwpn_iid[i].in_use = 0; 1081 free(port->wwpn_iid[i].name, M_CTL); 1082 port->wwpn_iid[i].name = NULL; 1083 } 1084 } 1085 mtx_unlock(&softc->ctl_lock); 1086} 1087 1088static void 1089ctl_isc_ua(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1090{ 1091 struct ctl_lun *lun; 1092 uint32_t iid = ctl_get_initindex(&msg->hdr.nexus); 1093 1094 mtx_lock(&softc->ctl_lock); 1095 if (msg->hdr.nexus.targ_mapped_lun >= ctl_max_luns || 1096 (lun = softc->ctl_luns[msg->hdr.nexus.targ_mapped_lun]) == NULL) { 1097 mtx_unlock(&softc->ctl_lock); 1098 return; 1099 } 1100 mtx_lock(&lun->lun_lock); 1101 mtx_unlock(&softc->ctl_lock); 1102 if (msg->ua.ua_type == CTL_UA_THIN_PROV_THRES && msg->ua.ua_set) 1103 memcpy(lun->ua_tpt_info, msg->ua.ua_info, 8); 1104 if (msg->ua.ua_all) { 1105 if (msg->ua.ua_set) 1106 ctl_est_ua_all(lun, iid, msg->ua.ua_type); 1107 else 1108 ctl_clr_ua_all(lun, iid, msg->ua.ua_type); 1109 } else { 1110 if (msg->ua.ua_set) 1111 ctl_est_ua(lun, iid, msg->ua.ua_type); 1112 else 1113 ctl_clr_ua(lun, iid, msg->ua.ua_type); 1114 } 1115 mtx_unlock(&lun->lun_lock); 1116} 1117 1118static void 1119ctl_isc_lun_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1120{ 1121 struct ctl_lun *lun; 1122 struct ctl_ha_msg_lun_pr_key pr_key; 1123 int i, k; 1124 ctl_lun_flags oflags; 1125 uint32_t targ_lun; 1126 1127 targ_lun = msg->hdr.nexus.targ_mapped_lun; 1128 mtx_lock(&softc->ctl_lock); 1129 if (targ_lun >= ctl_max_luns || 1130 (lun = softc->ctl_luns[targ_lun]) == NULL) { 1131 mtx_unlock(&softc->ctl_lock); 1132 return; 1133 } 1134 mtx_lock(&lun->lun_lock); 1135 mtx_unlock(&softc->ctl_lock); 1136 if (lun->flags & CTL_LUN_DISABLED) { 1137 mtx_unlock(&lun->lun_lock); 1138 return; 1139 } 1140 i = (lun->lun_devid != NULL) ? lun->lun_devid->len : 0; 1141 if (msg->lun.lun_devid_len != i || (i > 0 && 1142 memcmp(&msg->lun.data[0], lun->lun_devid->data, i) != 0)) { 1143 mtx_unlock(&lun->lun_lock); 1144 printf("%s: Received conflicting HA LUN %d\n", 1145 __func__, targ_lun); 1146 return; 1147 } else { 1148 /* Record whether peer is primary. */ 1149 oflags = lun->flags; 1150 if ((msg->lun.flags & CTL_LUN_PRIMARY_SC) && 1151 (msg->lun.flags & CTL_LUN_DISABLED) == 0) 1152 lun->flags |= CTL_LUN_PEER_SC_PRIMARY; 1153 else 1154 lun->flags &= ~CTL_LUN_PEER_SC_PRIMARY; 1155 if (oflags != lun->flags) 1156 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 1157 1158 /* If peer is primary and we are not -- use data */ 1159 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 1160 (lun->flags & CTL_LUN_PEER_SC_PRIMARY)) { 1161 lun->pr_generation = msg->lun.pr_generation; 1162 lun->pr_res_idx = msg->lun.pr_res_idx; 1163 lun->pr_res_type = msg->lun.pr_res_type; 1164 lun->pr_key_count = msg->lun.pr_key_count; 1165 for (k = 0; k < CTL_MAX_INITIATORS; k++) 1166 ctl_clr_prkey(lun, k); 1167 for (k = 0; k < msg->lun.pr_key_count; k++) { 1168 memcpy(&pr_key, &msg->lun.data[i], 1169 sizeof(pr_key)); 1170 ctl_alloc_prkey(lun, pr_key.pr_iid); 1171 ctl_set_prkey(lun, pr_key.pr_iid, 1172 pr_key.pr_key); 1173 i += sizeof(pr_key); 1174 } 1175 } 1176 1177 mtx_unlock(&lun->lun_lock); 1178 CTL_DEBUG_PRINT(("%s: Known LUN %d, peer is %s\n", 1179 __func__, targ_lun, 1180 (msg->lun.flags & CTL_LUN_PRIMARY_SC) ? 1181 "primary" : "secondary")); 1182 1183 /* If we are primary but peer doesn't know -- notify */ 1184 if ((lun->flags & CTL_LUN_PRIMARY_SC) && 1185 (msg->lun.flags & CTL_LUN_PEER_SC_PRIMARY) == 0) 1186 ctl_isc_announce_lun(lun); 1187 } 1188} 1189 1190static void 1191ctl_isc_port_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1192{ 1193 struct ctl_port *port; 1194 struct ctl_lun *lun; 1195 int i, new; 1196 1197 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 1198 if (port == NULL) { 1199 CTL_DEBUG_PRINT(("%s: New port %d\n", __func__, 1200 msg->hdr.nexus.targ_port)); 1201 new = 1; 1202 port = malloc(sizeof(*port), M_CTL, M_WAITOK | M_ZERO); 1203 port->frontend = &ha_frontend; 1204 port->targ_port = msg->hdr.nexus.targ_port; 1205 port->fe_datamove = ctl_ha_datamove; 1206 port->fe_done = ctl_ha_done; 1207 } else if (port->frontend == &ha_frontend) { 1208 CTL_DEBUG_PRINT(("%s: Updated port %d\n", __func__, 1209 msg->hdr.nexus.targ_port)); 1210 new = 0; 1211 } else { 1212 printf("%s: Received conflicting HA port %d\n", 1213 __func__, msg->hdr.nexus.targ_port); 1214 return; 1215 } 1216 port->port_type = msg->port.port_type; 1217 port->physical_port = msg->port.physical_port; 1218 port->virtual_port = msg->port.virtual_port; 1219 port->status = msg->port.status; 1220 i = 0; 1221 free(port->port_name, M_CTL); 1222 port->port_name = strndup(&msg->port.data[i], msg->port.name_len, 1223 M_CTL); 1224 i += msg->port.name_len; 1225 if (msg->port.lun_map_len != 0) { 1226 if (port->lun_map == NULL || 1227 port->lun_map_size * sizeof(uint32_t) < 1228 msg->port.lun_map_len) { 1229 port->lun_map_size = 0; 1230 free(port->lun_map, M_CTL); 1231 port->lun_map = malloc(msg->port.lun_map_len, 1232 M_CTL, M_WAITOK); 1233 } 1234 memcpy(port->lun_map, &msg->port.data[i], msg->port.lun_map_len); 1235 port->lun_map_size = msg->port.lun_map_len / sizeof(uint32_t); 1236 i += msg->port.lun_map_len; 1237 } else { 1238 port->lun_map_size = 0; 1239 free(port->lun_map, M_CTL); 1240 port->lun_map = NULL; 1241 } 1242 if (msg->port.port_devid_len != 0) { 1243 if (port->port_devid == NULL || 1244 port->port_devid->len < msg->port.port_devid_len) { 1245 free(port->port_devid, M_CTL); 1246 port->port_devid = malloc(sizeof(struct ctl_devid) + 1247 msg->port.port_devid_len, M_CTL, M_WAITOK); 1248 } 1249 memcpy(port->port_devid->data, &msg->port.data[i], 1250 msg->port.port_devid_len); 1251 port->port_devid->len = msg->port.port_devid_len; 1252 i += msg->port.port_devid_len; 1253 } else { 1254 free(port->port_devid, M_CTL); 1255 port->port_devid = NULL; 1256 } 1257 if (msg->port.target_devid_len != 0) { 1258 if (port->target_devid == NULL || 1259 port->target_devid->len < msg->port.target_devid_len) { 1260 free(port->target_devid, M_CTL); 1261 port->target_devid = malloc(sizeof(struct ctl_devid) + 1262 msg->port.target_devid_len, M_CTL, M_WAITOK); 1263 } 1264 memcpy(port->target_devid->data, &msg->port.data[i], 1265 msg->port.target_devid_len); 1266 port->target_devid->len = msg->port.target_devid_len; 1267 i += msg->port.target_devid_len; 1268 } else { 1269 free(port->target_devid, M_CTL); 1270 port->target_devid = NULL; 1271 } 1272 if (msg->port.init_devid_len != 0) { 1273 if (port->init_devid == NULL || 1274 port->init_devid->len < msg->port.init_devid_len) { 1275 free(port->init_devid, M_CTL); 1276 port->init_devid = malloc(sizeof(struct ctl_devid) + 1277 msg->port.init_devid_len, M_CTL, M_WAITOK); 1278 } 1279 memcpy(port->init_devid->data, &msg->port.data[i], 1280 msg->port.init_devid_len); 1281 port->init_devid->len = msg->port.init_devid_len; 1282 i += msg->port.init_devid_len; 1283 } else { 1284 free(port->init_devid, M_CTL); 1285 port->init_devid = NULL; 1286 } 1287 if (new) { 1288 if (ctl_port_register(port) != 0) { 1289 printf("%s: ctl_port_register() failed with error\n", 1290 __func__); 1291 } 1292 } 1293 mtx_lock(&softc->ctl_lock); 1294 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1295 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 1296 continue; 1297 mtx_lock(&lun->lun_lock); 1298 ctl_est_ua_all(lun, -1, CTL_UA_INQ_CHANGE); 1299 mtx_unlock(&lun->lun_lock); 1300 } 1301 mtx_unlock(&softc->ctl_lock); 1302} 1303 1304static void 1305ctl_isc_iid_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1306{ 1307 struct ctl_port *port; 1308 int iid; 1309 1310 port = softc->ctl_ports[msg->hdr.nexus.targ_port]; 1311 if (port == NULL) { 1312 printf("%s: Received IID for unknown port %d\n", 1313 __func__, msg->hdr.nexus.targ_port); 1314 return; 1315 } 1316 iid = msg->hdr.nexus.initid; 1317 if (port->wwpn_iid[iid].in_use != 0 && 1318 msg->iid.in_use == 0) 1319 ctl_i_t_nexus_loss(softc, iid, CTL_UA_POWERON); 1320 port->wwpn_iid[iid].in_use = msg->iid.in_use; 1321 port->wwpn_iid[iid].wwpn = msg->iid.wwpn; 1322 free(port->wwpn_iid[iid].name, M_CTL); 1323 if (msg->iid.name_len) { 1324 port->wwpn_iid[iid].name = strndup(&msg->iid.data[0], 1325 msg->iid.name_len, M_CTL); 1326 } else 1327 port->wwpn_iid[iid].name = NULL; 1328} 1329 1330static void 1331ctl_isc_login(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1332{ 1333 1334 if (msg->login.version != CTL_HA_VERSION) { 1335 printf("CTL HA peers have different versions %d != %d\n", 1336 msg->login.version, CTL_HA_VERSION); 1337 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1338 return; 1339 } 1340 if (msg->login.ha_mode != softc->ha_mode) { 1341 printf("CTL HA peers have different ha_mode %d != %d\n", 1342 msg->login.ha_mode, softc->ha_mode); 1343 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1344 return; 1345 } 1346 if (msg->login.ha_id == softc->ha_id) { 1347 printf("CTL HA peers have same ha_id %d\n", msg->login.ha_id); 1348 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1349 return; 1350 } 1351 if (msg->login.max_luns != ctl_max_luns || 1352 msg->login.max_ports != ctl_max_ports || 1353 msg->login.max_init_per_port != CTL_MAX_INIT_PER_PORT) { 1354 printf("CTL HA peers have different limits\n"); 1355 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1356 return; 1357 } 1358} 1359 1360static void 1361ctl_isc_mode_sync(struct ctl_softc *softc, union ctl_ha_msg *msg, int len) 1362{ 1363 struct ctl_lun *lun; 1364 u_int i; 1365 uint32_t initidx, targ_lun; 1366 1367 targ_lun = msg->hdr.nexus.targ_mapped_lun; 1368 mtx_lock(&softc->ctl_lock); 1369 if (targ_lun >= ctl_max_luns || 1370 (lun = softc->ctl_luns[targ_lun]) == NULL) { 1371 mtx_unlock(&softc->ctl_lock); 1372 return; 1373 } 1374 mtx_lock(&lun->lun_lock); 1375 mtx_unlock(&softc->ctl_lock); 1376 if (lun->flags & CTL_LUN_DISABLED) { 1377 mtx_unlock(&lun->lun_lock); 1378 return; 1379 } 1380 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 1381 if ((lun->mode_pages.index[i].page_code & SMPH_PC_MASK) == 1382 msg->mode.page_code && 1383 lun->mode_pages.index[i].subpage == msg->mode.subpage) 1384 break; 1385 } 1386 if (i == CTL_NUM_MODE_PAGES) { 1387 mtx_unlock(&lun->lun_lock); 1388 return; 1389 } 1390 memcpy(lun->mode_pages.index[i].page_data, msg->mode.data, 1391 lun->mode_pages.index[i].page_len); 1392 initidx = ctl_get_initindex(&msg->hdr.nexus); 1393 if (initidx != -1) 1394 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 1395 mtx_unlock(&lun->lun_lock); 1396} 1397 1398/* 1399 * ISC (Inter Shelf Communication) event handler. Events from the HA 1400 * subsystem come in here. 1401 */ 1402static void 1403ctl_isc_event_handler(ctl_ha_channel channel, ctl_ha_event event, int param) 1404{ 1405 struct ctl_softc *softc = control_softc; 1406 union ctl_io *io; 1407 struct ctl_prio *presio; 1408 ctl_ha_status isc_status; 1409 1410 CTL_DEBUG_PRINT(("CTL: Isc Msg event %d\n", event)); 1411 if (event == CTL_HA_EVT_MSG_RECV) { 1412 union ctl_ha_msg *msg, msgbuf; 1413 1414 if (param > sizeof(msgbuf)) 1415 msg = malloc(param, M_CTL, M_WAITOK); 1416 else 1417 msg = &msgbuf; 1418 isc_status = ctl_ha_msg_recv(CTL_HA_CHAN_CTL, msg, param, 1419 M_WAITOK); 1420 if (isc_status != CTL_HA_STATUS_SUCCESS) { 1421 printf("%s: Error receiving message: %d\n", 1422 __func__, isc_status); 1423 if (msg != &msgbuf) 1424 free(msg, M_CTL); 1425 return; 1426 } 1427 1428 CTL_DEBUG_PRINT(("CTL: msg_type %d\n", msg->msg_type)); 1429 switch (msg->hdr.msg_type) { 1430 case CTL_MSG_SERIALIZE: 1431 io = ctl_alloc_io(softc->othersc_pool); 1432 ctl_zero_io(io); 1433 // populate ctsio from msg 1434 io->io_hdr.io_type = CTL_IO_SCSI; 1435 io->io_hdr.msg_type = CTL_MSG_SERIALIZE; 1436 io->io_hdr.remote_io = msg->hdr.original_sc; 1437 io->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC | 1438 CTL_FLAG_IO_ACTIVE; 1439 /* 1440 * If we're in serialization-only mode, we don't 1441 * want to go through full done processing. Thus 1442 * the COPY flag. 1443 * 1444 * XXX KDM add another flag that is more specific. 1445 */ 1446 if (softc->ha_mode != CTL_HA_MODE_XFER) 1447 io->io_hdr.flags |= CTL_FLAG_INT_COPY; 1448 io->io_hdr.nexus = msg->hdr.nexus; 1449#if 0 1450 printf("port %u, iid %u, lun %u\n", 1451 io->io_hdr.nexus.targ_port, 1452 io->io_hdr.nexus.initid, 1453 io->io_hdr.nexus.targ_lun); 1454#endif 1455 io->scsiio.tag_num = msg->scsi.tag_num; 1456 io->scsiio.tag_type = msg->scsi.tag_type; 1457#ifdef CTL_TIME_IO 1458 io->io_hdr.start_time = time_uptime; 1459 getbinuptime(&io->io_hdr.start_bt); 1460#endif /* CTL_TIME_IO */ 1461 io->scsiio.cdb_len = msg->scsi.cdb_len; 1462 memcpy(io->scsiio.cdb, msg->scsi.cdb, 1463 CTL_MAX_CDBLEN); 1464 if (softc->ha_mode == CTL_HA_MODE_XFER) { 1465 const struct ctl_cmd_entry *entry; 1466 1467 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 1468 io->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 1469 io->io_hdr.flags |= 1470 entry->flags & CTL_FLAG_DATA_MASK; 1471 } 1472 ctl_enqueue_isc(io); 1473 break; 1474 1475 /* Performed on the Originating SC, XFER mode only */ 1476 case CTL_MSG_DATAMOVE: { 1477 struct ctl_sg_entry *sgl; 1478 int i, j; 1479 1480 io = msg->hdr.original_sc; 1481 if (io == NULL) { 1482 printf("%s: original_sc == NULL!\n", __func__); 1483 /* XXX KDM do something here */ 1484 break; 1485 } 1486 io->io_hdr.msg_type = CTL_MSG_DATAMOVE; 1487 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1488 /* 1489 * Keep track of this, we need to send it back over 1490 * when the datamove is complete. 1491 */ 1492 io->io_hdr.remote_io = msg->hdr.serializing_sc; 1493 if (msg->hdr.status == CTL_SUCCESS) 1494 io->io_hdr.status = msg->hdr.status; 1495 1496 if (msg->dt.sg_sequence == 0) { 1497#ifdef CTL_TIME_IO 1498 getbinuptime(&io->io_hdr.dma_start_bt); 1499#endif 1500 i = msg->dt.kern_sg_entries + 1501 msg->dt.kern_data_len / 1502 CTL_HA_DATAMOVE_SEGMENT + 1; 1503 sgl = malloc(sizeof(*sgl) * i, M_CTL, 1504 M_WAITOK | M_ZERO); 1505 CTL_RSGL(io) = sgl; 1506 CTL_LSGL(io) = &sgl[msg->dt.kern_sg_entries]; 1507 1508 io->scsiio.kern_data_ptr = (uint8_t *)sgl; 1509 1510 io->scsiio.kern_sg_entries = 1511 msg->dt.kern_sg_entries; 1512 io->scsiio.rem_sg_entries = 1513 msg->dt.kern_sg_entries; 1514 io->scsiio.kern_data_len = 1515 msg->dt.kern_data_len; 1516 io->scsiio.kern_total_len = 1517 msg->dt.kern_total_len; 1518 io->scsiio.kern_data_resid = 1519 msg->dt.kern_data_resid; 1520 io->scsiio.kern_rel_offset = 1521 msg->dt.kern_rel_offset; 1522 io->io_hdr.flags &= ~CTL_FLAG_BUS_ADDR; 1523 io->io_hdr.flags |= msg->dt.flags & 1524 CTL_FLAG_BUS_ADDR; 1525 } else 1526 sgl = (struct ctl_sg_entry *) 1527 io->scsiio.kern_data_ptr; 1528 1529 for (i = msg->dt.sent_sg_entries, j = 0; 1530 i < (msg->dt.sent_sg_entries + 1531 msg->dt.cur_sg_entries); i++, j++) { 1532 sgl[i].addr = msg->dt.sg_list[j].addr; 1533 sgl[i].len = msg->dt.sg_list[j].len; 1534 1535#if 0 1536 printf("%s: DATAMOVE: %p,%lu j=%d, i=%d\n", 1537 __func__, sgl[i].addr, sgl[i].len, j, i); 1538#endif 1539 } 1540 1541 /* 1542 * If this is the last piece of the I/O, we've got 1543 * the full S/G list. Queue processing in the thread. 1544 * Otherwise wait for the next piece. 1545 */ 1546 if (msg->dt.sg_last != 0) 1547 ctl_enqueue_isc(io); 1548 break; 1549 } 1550 /* Performed on the Serializing (primary) SC, XFER mode only */ 1551 case CTL_MSG_DATAMOVE_DONE: { 1552 if (msg->hdr.serializing_sc == NULL) { 1553 printf("%s: serializing_sc == NULL!\n", 1554 __func__); 1555 /* XXX KDM now what? */ 1556 break; 1557 } 1558 /* 1559 * We grab the sense information here in case 1560 * there was a failure, so we can return status 1561 * back to the initiator. 1562 */ 1563 io = msg->hdr.serializing_sc; 1564 io->io_hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 1565 io->io_hdr.flags &= ~CTL_FLAG_DMA_INPROG; 1566 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1567 io->io_hdr.port_status = msg->scsi.port_status; 1568 io->scsiio.kern_data_resid = msg->scsi.kern_data_resid; 1569 if (msg->hdr.status != CTL_STATUS_NONE) { 1570 io->io_hdr.status = msg->hdr.status; 1571 io->scsiio.scsi_status = msg->scsi.scsi_status; 1572 io->scsiio.sense_len = msg->scsi.sense_len; 1573 memcpy(&io->scsiio.sense_data, 1574 &msg->scsi.sense_data, 1575 msg->scsi.sense_len); 1576 if (msg->hdr.status == CTL_SUCCESS) 1577 io->io_hdr.flags |= CTL_FLAG_STATUS_SENT; 1578 } 1579 ctl_enqueue_isc(io); 1580 break; 1581 } 1582 1583 /* Preformed on Originating SC, SER_ONLY mode */ 1584 case CTL_MSG_R2R: 1585 io = msg->hdr.original_sc; 1586 if (io == NULL) { 1587 printf("%s: original_sc == NULL!\n", 1588 __func__); 1589 break; 1590 } 1591 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1592 io->io_hdr.msg_type = CTL_MSG_R2R; 1593 io->io_hdr.remote_io = msg->hdr.serializing_sc; 1594 ctl_enqueue_isc(io); 1595 break; 1596 1597 /* 1598 * Performed on Serializing(i.e. primary SC) SC in SER_ONLY 1599 * mode. 1600 * Performed on the Originating (i.e. secondary) SC in XFER 1601 * mode 1602 */ 1603 case CTL_MSG_FINISH_IO: 1604 if (softc->ha_mode == CTL_HA_MODE_XFER) 1605 ctl_isc_handler_finish_xfer(softc, msg); 1606 else 1607 ctl_isc_handler_finish_ser_only(softc, msg); 1608 break; 1609 1610 /* Preformed on Originating SC */ 1611 case CTL_MSG_BAD_JUJU: 1612 io = msg->hdr.original_sc; 1613 if (io == NULL) { 1614 printf("%s: Bad JUJU!, original_sc is NULL!\n", 1615 __func__); 1616 break; 1617 } 1618 ctl_copy_sense_data(msg, io); 1619 /* 1620 * IO should have already been cleaned up on other 1621 * SC so clear this flag so we won't send a message 1622 * back to finish the IO there. 1623 */ 1624 io->io_hdr.flags &= ~CTL_FLAG_SENT_2OTHER_SC; 1625 io->io_hdr.flags |= CTL_FLAG_IO_ACTIVE; 1626 1627 /* io = msg->hdr.serializing_sc; */ 1628 io->io_hdr.msg_type = CTL_MSG_BAD_JUJU; 1629 ctl_enqueue_isc(io); 1630 break; 1631 1632 /* Handle resets sent from the other side */ 1633 case CTL_MSG_MANAGE_TASKS: { 1634 struct ctl_taskio *taskio; 1635 taskio = (struct ctl_taskio *)ctl_alloc_io( 1636 softc->othersc_pool); 1637 ctl_zero_io((union ctl_io *)taskio); 1638 taskio->io_hdr.io_type = CTL_IO_TASK; 1639 taskio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1640 taskio->io_hdr.nexus = msg->hdr.nexus; 1641 taskio->task_action = msg->task.task_action; 1642 taskio->tag_num = msg->task.tag_num; 1643 taskio->tag_type = msg->task.tag_type; 1644#ifdef CTL_TIME_IO 1645 taskio->io_hdr.start_time = time_uptime; 1646 getbinuptime(&taskio->io_hdr.start_bt); 1647#endif /* CTL_TIME_IO */ 1648 ctl_run_task((union ctl_io *)taskio); 1649 break; 1650 } 1651 /* Persistent Reserve action which needs attention */ 1652 case CTL_MSG_PERS_ACTION: 1653 presio = (struct ctl_prio *)ctl_alloc_io( 1654 softc->othersc_pool); 1655 ctl_zero_io((union ctl_io *)presio); 1656 presio->io_hdr.msg_type = CTL_MSG_PERS_ACTION; 1657 presio->io_hdr.flags |= CTL_FLAG_FROM_OTHER_SC; 1658 presio->io_hdr.nexus = msg->hdr.nexus; 1659 presio->pr_msg = msg->pr; 1660 ctl_enqueue_isc((union ctl_io *)presio); 1661 break; 1662 case CTL_MSG_UA: 1663 ctl_isc_ua(softc, msg, param); 1664 break; 1665 case CTL_MSG_PORT_SYNC: 1666 ctl_isc_port_sync(softc, msg, param); 1667 break; 1668 case CTL_MSG_LUN_SYNC: 1669 ctl_isc_lun_sync(softc, msg, param); 1670 break; 1671 case CTL_MSG_IID_SYNC: 1672 ctl_isc_iid_sync(softc, msg, param); 1673 break; 1674 case CTL_MSG_LOGIN: 1675 ctl_isc_login(softc, msg, param); 1676 break; 1677 case CTL_MSG_MODE_SYNC: 1678 ctl_isc_mode_sync(softc, msg, param); 1679 break; 1680 default: 1681 printf("Received HA message of unknown type %d\n", 1682 msg->hdr.msg_type); 1683 ctl_ha_msg_abort(CTL_HA_CHAN_CTL); 1684 break; 1685 } 1686 if (msg != &msgbuf) 1687 free(msg, M_CTL); 1688 } else if (event == CTL_HA_EVT_LINK_CHANGE) { 1689 printf("CTL: HA link status changed from %d to %d\n", 1690 softc->ha_link, param); 1691 if (param == softc->ha_link) 1692 return; 1693 if (softc->ha_link == CTL_HA_LINK_ONLINE) { 1694 softc->ha_link = param; 1695 ctl_isc_ha_link_down(softc); 1696 } else { 1697 softc->ha_link = param; 1698 if (softc->ha_link == CTL_HA_LINK_ONLINE) 1699 ctl_isc_ha_link_up(softc); 1700 } 1701 return; 1702 } else { 1703 printf("ctl_isc_event_handler: Unknown event %d\n", event); 1704 return; 1705 } 1706} 1707 1708static void 1709ctl_copy_sense_data(union ctl_ha_msg *src, union ctl_io *dest) 1710{ 1711 1712 memcpy(&dest->scsiio.sense_data, &src->scsi.sense_data, 1713 src->scsi.sense_len); 1714 dest->scsiio.scsi_status = src->scsi.scsi_status; 1715 dest->scsiio.sense_len = src->scsi.sense_len; 1716 dest->io_hdr.status = src->hdr.status; 1717} 1718 1719static void 1720ctl_copy_sense_data_back(union ctl_io *src, union ctl_ha_msg *dest) 1721{ 1722 1723 memcpy(&dest->scsi.sense_data, &src->scsiio.sense_data, 1724 src->scsiio.sense_len); 1725 dest->scsi.scsi_status = src->scsiio.scsi_status; 1726 dest->scsi.sense_len = src->scsiio.sense_len; 1727 dest->hdr.status = src->io_hdr.status; 1728} 1729 1730void 1731ctl_est_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1732{ 1733 struct ctl_softc *softc = lun->ctl_softc; 1734 ctl_ua_type *pu; 1735 1736 if (initidx < softc->init_min || initidx >= softc->init_max) 1737 return; 1738 mtx_assert(&lun->lun_lock, MA_OWNED); 1739 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1740 if (pu == NULL) 1741 return; 1742 pu[initidx % CTL_MAX_INIT_PER_PORT] |= ua; 1743} 1744 1745void 1746ctl_est_ua_port(struct ctl_lun *lun, int port, uint32_t except, ctl_ua_type ua) 1747{ 1748 int i; 1749 1750 mtx_assert(&lun->lun_lock, MA_OWNED); 1751 if (lun->pending_ua[port] == NULL) 1752 return; 1753 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 1754 if (port * CTL_MAX_INIT_PER_PORT + i == except) 1755 continue; 1756 lun->pending_ua[port][i] |= ua; 1757 } 1758} 1759 1760void 1761ctl_est_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1762{ 1763 struct ctl_softc *softc = lun->ctl_softc; 1764 int i; 1765 1766 mtx_assert(&lun->lun_lock, MA_OWNED); 1767 for (i = softc->port_min; i < softc->port_max; i++) 1768 ctl_est_ua_port(lun, i, except, ua); 1769} 1770 1771void 1772ctl_clr_ua(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua) 1773{ 1774 struct ctl_softc *softc = lun->ctl_softc; 1775 ctl_ua_type *pu; 1776 1777 if (initidx < softc->init_min || initidx >= softc->init_max) 1778 return; 1779 mtx_assert(&lun->lun_lock, MA_OWNED); 1780 pu = lun->pending_ua[initidx / CTL_MAX_INIT_PER_PORT]; 1781 if (pu == NULL) 1782 return; 1783 pu[initidx % CTL_MAX_INIT_PER_PORT] &= ~ua; 1784} 1785 1786void 1787ctl_clr_ua_all(struct ctl_lun *lun, uint32_t except, ctl_ua_type ua) 1788{ 1789 struct ctl_softc *softc = lun->ctl_softc; 1790 int i, j; 1791 1792 mtx_assert(&lun->lun_lock, MA_OWNED); 1793 for (i = softc->port_min; i < softc->port_max; i++) { 1794 if (lun->pending_ua[i] == NULL) 1795 continue; 1796 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 1797 if (i * CTL_MAX_INIT_PER_PORT + j == except) 1798 continue; 1799 lun->pending_ua[i][j] &= ~ua; 1800 } 1801 } 1802} 1803 1804void 1805ctl_clr_ua_allluns(struct ctl_softc *ctl_softc, uint32_t initidx, 1806 ctl_ua_type ua_type) 1807{ 1808 struct ctl_lun *lun; 1809 1810 mtx_assert(&ctl_softc->ctl_lock, MA_OWNED); 1811 STAILQ_FOREACH(lun, &ctl_softc->lun_list, links) { 1812 mtx_lock(&lun->lun_lock); 1813 ctl_clr_ua(lun, initidx, ua_type); 1814 mtx_unlock(&lun->lun_lock); 1815 } 1816} 1817 1818static int 1819ctl_ha_role_sysctl(SYSCTL_HANDLER_ARGS) 1820{ 1821 struct ctl_softc *softc = (struct ctl_softc *)arg1; 1822 struct ctl_lun *lun; 1823 struct ctl_lun_req ireq; 1824 int error, value; 1825 1826 value = (softc->flags & CTL_FLAG_ACTIVE_SHELF) ? 0 : 1; 1827 error = sysctl_handle_int(oidp, &value, 0, req); 1828 if ((error != 0) || (req->newptr == NULL)) 1829 return (error); 1830 1831 mtx_lock(&softc->ctl_lock); 1832 if (value == 0) 1833 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1834 else 1835 softc->flags &= ~CTL_FLAG_ACTIVE_SHELF; 1836 STAILQ_FOREACH(lun, &softc->lun_list, links) { 1837 mtx_unlock(&softc->ctl_lock); 1838 bzero(&ireq, sizeof(ireq)); 1839 ireq.reqtype = CTL_LUNREQ_MODIFY; 1840 ireq.reqdata.modify.lun_id = lun->lun; 1841 lun->backend->ioctl(NULL, CTL_LUN_REQ, (caddr_t)&ireq, 0, 1842 curthread); 1843 if (ireq.status != CTL_LUN_OK) { 1844 printf("%s: CTL_LUNREQ_MODIFY returned %d '%s'\n", 1845 __func__, ireq.status, ireq.error_str); 1846 } 1847 mtx_lock(&softc->ctl_lock); 1848 } 1849 mtx_unlock(&softc->ctl_lock); 1850 return (0); 1851} 1852 1853static int 1854ctl_init(void) 1855{ 1856 struct make_dev_args args; 1857 struct ctl_softc *softc; 1858 int i, error; 1859 1860 softc = control_softc = malloc(sizeof(*control_softc), M_DEVBUF, 1861 M_WAITOK | M_ZERO); 1862 1863 make_dev_args_init(&args); 1864 args.mda_devsw = &ctl_cdevsw; 1865 args.mda_uid = UID_ROOT; 1866 args.mda_gid = GID_OPERATOR; 1867 args.mda_mode = 0600; 1868 args.mda_si_drv1 = softc; 1869 error = make_dev_s(&args, &softc->dev, "cam/ctl"); 1870 if (error != 0) { 1871 free(softc, M_DEVBUF); 1872 control_softc = NULL; 1873 return (error); 1874 } 1875 1876 sysctl_ctx_init(&softc->sysctl_ctx); 1877 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1878 SYSCTL_STATIC_CHILDREN(_kern_cam), OID_AUTO, "ctl", 1879 CTLFLAG_RD, 0, "CAM Target Layer"); 1880 1881 if (softc->sysctl_tree == NULL) { 1882 printf("%s: unable to allocate sysctl tree\n", __func__); 1883 destroy_dev(softc->dev); 1884 free(softc, M_DEVBUF); 1885 control_softc = NULL; 1886 return (ENOMEM); 1887 } 1888 1889 mtx_init(&softc->ctl_lock, "CTL mutex", NULL, MTX_DEF); 1890 softc->io_zone = uma_zcreate("CTL IO", sizeof(union ctl_io), 1891 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, 0); 1892 softc->flags = 0; 1893 1894 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1895 OID_AUTO, "ha_mode", CTLFLAG_RDTUN, (int *)&softc->ha_mode, 0, 1896 "HA mode (0 - act/stby, 1 - serialize only, 2 - xfer)"); 1897 1898 if (ctl_max_luns <= 0 || powerof2(ctl_max_luns) == 0) { 1899 printf("Bad value %d for kern.cam.ctl.max_luns, must be a power of two, using %d\n", 1900 ctl_max_luns, CTL_DEFAULT_MAX_LUNS); 1901 ctl_max_luns = CTL_DEFAULT_MAX_LUNS; 1902 } 1903 softc->ctl_luns = malloc(sizeof(struct ctl_lun *) * ctl_max_luns, 1904 M_DEVBUF, M_WAITOK | M_ZERO); 1905 softc->ctl_lun_mask = malloc(sizeof(uint32_t) * 1906 ((ctl_max_luns + 31) / 32), M_DEVBUF, M_WAITOK | M_ZERO); 1907 if (ctl_max_ports <= 0 || powerof2(ctl_max_ports) == 0) { 1908 printf("Bad value %d for kern.cam.ctl.max_ports, must be a power of two, using %d\n", 1909 ctl_max_ports, CTL_DEFAULT_MAX_PORTS); 1910 ctl_max_ports = CTL_DEFAULT_MAX_PORTS; 1911 } 1912 softc->ctl_port_mask = malloc(sizeof(uint32_t) * 1913 ((ctl_max_ports + 31) / 32), M_DEVBUF, M_WAITOK | M_ZERO); 1914 softc->ctl_ports = malloc(sizeof(struct ctl_port *) * ctl_max_ports, 1915 M_DEVBUF, M_WAITOK | M_ZERO); 1916 1917 1918 /* 1919 * In Copan's HA scheme, the "master" and "slave" roles are 1920 * figured out through the slot the controller is in. Although it 1921 * is an active/active system, someone has to be in charge. 1922 */ 1923 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1924 OID_AUTO, "ha_id", CTLFLAG_RDTUN, &softc->ha_id, 0, 1925 "HA head ID (0 - no HA)"); 1926 if (softc->ha_id == 0 || softc->ha_id > NUM_HA_SHELVES) { 1927 softc->flags |= CTL_FLAG_ACTIVE_SHELF; 1928 softc->is_single = 1; 1929 softc->port_cnt = ctl_max_ports; 1930 softc->port_min = 0; 1931 } else { 1932 softc->port_cnt = ctl_max_ports / NUM_HA_SHELVES; 1933 softc->port_min = (softc->ha_id - 1) * softc->port_cnt; 1934 } 1935 softc->port_max = softc->port_min + softc->port_cnt; 1936 softc->init_min = softc->port_min * CTL_MAX_INIT_PER_PORT; 1937 softc->init_max = softc->port_max * CTL_MAX_INIT_PER_PORT; 1938 1939 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1940 OID_AUTO, "ha_link", CTLFLAG_RD, (int *)&softc->ha_link, 0, 1941 "HA link state (0 - offline, 1 - unknown, 2 - online)"); 1942 1943 STAILQ_INIT(&softc->lun_list); 1944 STAILQ_INIT(&softc->pending_lun_queue); 1945 STAILQ_INIT(&softc->fe_list); 1946 STAILQ_INIT(&softc->port_list); 1947 STAILQ_INIT(&softc->be_list); 1948 ctl_tpc_init(softc); 1949 1950 if (worker_threads <= 0) 1951 worker_threads = max(1, mp_ncpus / 4); 1952 if (worker_threads > CTL_MAX_THREADS) 1953 worker_threads = CTL_MAX_THREADS; 1954 1955 for (i = 0; i < worker_threads; i++) { 1956 struct ctl_thread *thr = &softc->threads[i]; 1957 1958 mtx_init(&thr->queue_lock, "CTL queue mutex", NULL, MTX_DEF); 1959 thr->ctl_softc = softc; 1960 STAILQ_INIT(&thr->incoming_queue); 1961 STAILQ_INIT(&thr->rtr_queue); 1962 STAILQ_INIT(&thr->done_queue); 1963 STAILQ_INIT(&thr->isc_queue); 1964 1965 error = kproc_kthread_add(ctl_work_thread, thr, 1966 &softc->ctl_proc, &thr->thread, 0, 0, "ctl", "work%d", i); 1967 if (error != 0) { 1968 printf("error creating CTL work thread!\n"); 1969 return (error); 1970 } 1971 } 1972 error = kproc_kthread_add(ctl_lun_thread, softc, 1973 &softc->ctl_proc, &softc->lun_thread, 0, 0, "ctl", "lun"); 1974 if (error != 0) { 1975 printf("error creating CTL lun thread!\n"); 1976 return (error); 1977 } 1978 error = kproc_kthread_add(ctl_thresh_thread, softc, 1979 &softc->ctl_proc, &softc->thresh_thread, 0, 0, "ctl", "thresh"); 1980 if (error != 0) { 1981 printf("error creating CTL threshold thread!\n"); 1982 return (error); 1983 } 1984 1985 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1986 OID_AUTO, "ha_role", CTLTYPE_INT | CTLFLAG_RWTUN, 1987 softc, 0, ctl_ha_role_sysctl, "I", "HA role for this head"); 1988 1989 if (softc->is_single == 0) { 1990 if (ctl_frontend_register(&ha_frontend) != 0) 1991 softc->is_single = 1; 1992 } 1993 return (0); 1994} 1995 1996static int 1997ctl_shutdown(void) 1998{ 1999 struct ctl_softc *softc = control_softc; 2000 int i; 2001 2002 if (softc->is_single == 0) 2003 ctl_frontend_deregister(&ha_frontend); 2004 2005 destroy_dev(softc->dev); 2006 2007 /* Shutdown CTL threads. */ 2008 softc->shutdown = 1; 2009 for (i = 0; i < worker_threads; i++) { 2010 struct ctl_thread *thr = &softc->threads[i]; 2011 while (thr->thread != NULL) { 2012 wakeup(thr); 2013 if (thr->thread != NULL) 2014 pause("CTL thr shutdown", 1); 2015 } 2016 mtx_destroy(&thr->queue_lock); 2017 } 2018 while (softc->lun_thread != NULL) { 2019 wakeup(&softc->pending_lun_queue); 2020 if (softc->lun_thread != NULL) 2021 pause("CTL thr shutdown", 1); 2022 } 2023 while (softc->thresh_thread != NULL) { 2024 wakeup(softc->thresh_thread); 2025 if (softc->thresh_thread != NULL) 2026 pause("CTL thr shutdown", 1); 2027 } 2028 2029 ctl_tpc_shutdown(softc); 2030 uma_zdestroy(softc->io_zone); 2031 mtx_destroy(&softc->ctl_lock); 2032 2033 free(softc->ctl_luns, M_DEVBUF); 2034 free(softc->ctl_lun_mask, M_DEVBUF); 2035 free(softc->ctl_port_mask, M_DEVBUF); 2036 free(softc->ctl_ports, M_DEVBUF); 2037 2038 sysctl_ctx_free(&softc->sysctl_ctx); 2039 2040 free(softc, M_DEVBUF); 2041 control_softc = NULL; 2042 return (0); 2043} 2044 2045static int 2046ctl_module_event_handler(module_t mod, int what, void *arg) 2047{ 2048 2049 switch (what) { 2050 case MOD_LOAD: 2051 return (ctl_init()); 2052 case MOD_UNLOAD: 2053 return (ctl_shutdown()); 2054 default: 2055 return (EOPNOTSUPP); 2056 } 2057} 2058 2059/* 2060 * XXX KDM should we do some access checks here? Bump a reference count to 2061 * prevent a CTL module from being unloaded while someone has it open? 2062 */ 2063static int 2064ctl_open(struct cdev *dev, int flags, int fmt, struct thread *td) 2065{ 2066 return (0); 2067} 2068 2069static int 2070ctl_close(struct cdev *dev, int flags, int fmt, struct thread *td) 2071{ 2072 return (0); 2073} 2074 2075/* 2076 * Remove an initiator by port number and initiator ID. 2077 * Returns 0 for success, -1 for failure. 2078 */ 2079int 2080ctl_remove_initiator(struct ctl_port *port, int iid) 2081{ 2082 struct ctl_softc *softc = port->ctl_softc; 2083 int last; 2084 2085 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 2086 2087 if (iid > CTL_MAX_INIT_PER_PORT) { 2088 printf("%s: initiator ID %u > maximun %u!\n", 2089 __func__, iid, CTL_MAX_INIT_PER_PORT); 2090 return (-1); 2091 } 2092 2093 mtx_lock(&softc->ctl_lock); 2094 last = (--port->wwpn_iid[iid].in_use == 0); 2095 port->wwpn_iid[iid].last_use = time_uptime; 2096 mtx_unlock(&softc->ctl_lock); 2097 if (last) 2098 ctl_i_t_nexus_loss(softc, iid, CTL_UA_POWERON); 2099 ctl_isc_announce_iid(port, iid); 2100 2101 return (0); 2102} 2103 2104/* 2105 * Add an initiator to the initiator map. 2106 * Returns iid for success, < 0 for failure. 2107 */ 2108int 2109ctl_add_initiator(struct ctl_port *port, int iid, uint64_t wwpn, char *name) 2110{ 2111 struct ctl_softc *softc = port->ctl_softc; 2112 time_t best_time; 2113 int i, best; 2114 2115 mtx_assert(&softc->ctl_lock, MA_NOTOWNED); 2116 2117 if (iid >= CTL_MAX_INIT_PER_PORT) { 2118 printf("%s: WWPN %#jx initiator ID %u > maximum %u!\n", 2119 __func__, wwpn, iid, CTL_MAX_INIT_PER_PORT); 2120 free(name, M_CTL); 2121 return (-1); 2122 } 2123 2124 mtx_lock(&softc->ctl_lock); 2125 2126 if (iid < 0 && (wwpn != 0 || name != NULL)) { 2127 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2128 if (wwpn != 0 && wwpn == port->wwpn_iid[i].wwpn) { 2129 iid = i; 2130 break; 2131 } 2132 if (name != NULL && port->wwpn_iid[i].name != NULL && 2133 strcmp(name, port->wwpn_iid[i].name) == 0) { 2134 iid = i; 2135 break; 2136 } 2137 } 2138 } 2139 2140 if (iid < 0) { 2141 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2142 if (port->wwpn_iid[i].in_use == 0 && 2143 port->wwpn_iid[i].wwpn == 0 && 2144 port->wwpn_iid[i].name == NULL) { 2145 iid = i; 2146 break; 2147 } 2148 } 2149 } 2150 2151 if (iid < 0) { 2152 best = -1; 2153 best_time = INT32_MAX; 2154 for (i = 0; i < CTL_MAX_INIT_PER_PORT; i++) { 2155 if (port->wwpn_iid[i].in_use == 0) { 2156 if (port->wwpn_iid[i].last_use < best_time) { 2157 best = i; 2158 best_time = port->wwpn_iid[i].last_use; 2159 } 2160 } 2161 } 2162 iid = best; 2163 } 2164 2165 if (iid < 0) { 2166 mtx_unlock(&softc->ctl_lock); 2167 free(name, M_CTL); 2168 return (-2); 2169 } 2170 2171 if (port->wwpn_iid[iid].in_use > 0 && (wwpn != 0 || name != NULL)) { 2172 /* 2173 * This is not an error yet. 2174 */ 2175 if (wwpn != 0 && wwpn == port->wwpn_iid[iid].wwpn) { 2176#if 0 2177 printf("%s: port %d iid %u WWPN %#jx arrived" 2178 " again\n", __func__, port->targ_port, 2179 iid, (uintmax_t)wwpn); 2180#endif 2181 goto take; 2182 } 2183 if (name != NULL && port->wwpn_iid[iid].name != NULL && 2184 strcmp(name, port->wwpn_iid[iid].name) == 0) { 2185#if 0 2186 printf("%s: port %d iid %u name '%s' arrived" 2187 " again\n", __func__, port->targ_port, 2188 iid, name); 2189#endif 2190 goto take; 2191 } 2192 2193 /* 2194 * This is an error, but what do we do about it? The 2195 * driver is telling us we have a new WWPN for this 2196 * initiator ID, so we pretty much need to use it. 2197 */ 2198 printf("%s: port %d iid %u WWPN %#jx '%s' arrived," 2199 " but WWPN %#jx '%s' is still at that address\n", 2200 __func__, port->targ_port, iid, wwpn, name, 2201 (uintmax_t)port->wwpn_iid[iid].wwpn, 2202 port->wwpn_iid[iid].name); 2203 } 2204take: 2205 free(port->wwpn_iid[iid].name, M_CTL); 2206 port->wwpn_iid[iid].name = name; 2207 port->wwpn_iid[iid].wwpn = wwpn; 2208 port->wwpn_iid[iid].in_use++; 2209 mtx_unlock(&softc->ctl_lock); 2210 ctl_isc_announce_iid(port, iid); 2211 2212 return (iid); 2213} 2214 2215static int 2216ctl_create_iid(struct ctl_port *port, int iid, uint8_t *buf) 2217{ 2218 int len; 2219 2220 switch (port->port_type) { 2221 case CTL_PORT_FC: 2222 { 2223 struct scsi_transportid_fcp *id = 2224 (struct scsi_transportid_fcp *)buf; 2225 if (port->wwpn_iid[iid].wwpn == 0) 2226 return (0); 2227 memset(id, 0, sizeof(*id)); 2228 id->format_protocol = SCSI_PROTO_FC; 2229 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->n_port_name); 2230 return (sizeof(*id)); 2231 } 2232 case CTL_PORT_ISCSI: 2233 { 2234 struct scsi_transportid_iscsi_port *id = 2235 (struct scsi_transportid_iscsi_port *)buf; 2236 if (port->wwpn_iid[iid].name == NULL) 2237 return (0); 2238 memset(id, 0, 256); 2239 id->format_protocol = SCSI_TRN_ISCSI_FORMAT_PORT | 2240 SCSI_PROTO_ISCSI; 2241 len = strlcpy(id->iscsi_name, port->wwpn_iid[iid].name, 252) + 1; 2242 len = roundup2(min(len, 252), 4); 2243 scsi_ulto2b(len, id->additional_length); 2244 return (sizeof(*id) + len); 2245 } 2246 case CTL_PORT_SAS: 2247 { 2248 struct scsi_transportid_sas *id = 2249 (struct scsi_transportid_sas *)buf; 2250 if (port->wwpn_iid[iid].wwpn == 0) 2251 return (0); 2252 memset(id, 0, sizeof(*id)); 2253 id->format_protocol = SCSI_PROTO_SAS; 2254 scsi_u64to8b(port->wwpn_iid[iid].wwpn, id->sas_address); 2255 return (sizeof(*id)); 2256 } 2257 default: 2258 { 2259 struct scsi_transportid_spi *id = 2260 (struct scsi_transportid_spi *)buf; 2261 memset(id, 0, sizeof(*id)); 2262 id->format_protocol = SCSI_PROTO_SPI; 2263 scsi_ulto2b(iid, id->scsi_addr); 2264 scsi_ulto2b(port->targ_port, id->rel_trgt_port_id); 2265 return (sizeof(*id)); 2266 } 2267 } 2268} 2269 2270/* 2271 * Serialize a command that went down the "wrong" side, and so was sent to 2272 * this controller for execution. The logic is a little different than the 2273 * standard case in ctl_scsiio_precheck(). Errors in this case need to get 2274 * sent back to the other side, but in the success case, we execute the 2275 * command on this side (XFER mode) or tell the other side to execute it 2276 * (SER_ONLY mode). 2277 */ 2278static void 2279ctl_serialize_other_sc_cmd(struct ctl_scsiio *ctsio) 2280{ 2281 struct ctl_softc *softc = CTL_SOFTC(ctsio); 2282 struct ctl_port *port = CTL_PORT(ctsio); 2283 union ctl_ha_msg msg_info; 2284 struct ctl_lun *lun; 2285 const struct ctl_cmd_entry *entry; 2286 uint32_t targ_lun; 2287 2288 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 2289 2290 /* Make sure that we know about this port. */ 2291 if (port == NULL || (port->status & CTL_PORT_STATUS_ONLINE) == 0) { 2292 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 2293 /*retry_count*/ 1); 2294 goto badjuju; 2295 } 2296 2297 /* Make sure that we know about this LUN. */ 2298 mtx_lock(&softc->ctl_lock); 2299 if (targ_lun >= ctl_max_luns || 2300 (lun = softc->ctl_luns[targ_lun]) == NULL) { 2301 mtx_unlock(&softc->ctl_lock); 2302 2303 /* 2304 * The other node would not send this request to us unless 2305 * received announce that we are primary node for this LUN. 2306 * If this LUN does not exist now, it is probably result of 2307 * a race, so respond to initiator in the most opaque way. 2308 */ 2309 ctl_set_busy(ctsio); 2310 goto badjuju; 2311 } 2312 mtx_lock(&lun->lun_lock); 2313 mtx_unlock(&softc->ctl_lock); 2314 2315 /* 2316 * If the LUN is invalid, pretend that it doesn't exist. 2317 * It will go away as soon as all pending I/Os completed. 2318 */ 2319 if (lun->flags & CTL_LUN_DISABLED) { 2320 mtx_unlock(&lun->lun_lock); 2321 ctl_set_busy(ctsio); 2322 goto badjuju; 2323 } 2324 2325 entry = ctl_get_cmd_entry(ctsio, NULL); 2326 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 2327 mtx_unlock(&lun->lun_lock); 2328 goto badjuju; 2329 } 2330 2331 CTL_LUN(ctsio) = lun; 2332 CTL_BACKEND_LUN(ctsio) = lun->be_lun; 2333 2334 /* 2335 * Every I/O goes into the OOA queue for a 2336 * particular LUN, and stays there until completion. 2337 */ 2338#ifdef CTL_TIME_IO 2339 if (TAILQ_EMPTY(&lun->ooa_queue)) 2340 lun->idle_time += getsbinuptime() - lun->last_busy; 2341#endif 2342 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2343 2344 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 2345 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, ctl_ooaq, 2346 ooa_links))) { 2347 case CTL_ACTION_BLOCK: 2348 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 2349 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 2350 blocked_links); 2351 mtx_unlock(&lun->lun_lock); 2352 break; 2353 case CTL_ACTION_PASS: 2354 case CTL_ACTION_SKIP: 2355 if (softc->ha_mode == CTL_HA_MODE_XFER) { 2356 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 2357 ctl_enqueue_rtr((union ctl_io *)ctsio); 2358 mtx_unlock(&lun->lun_lock); 2359 } else { 2360 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 2361 mtx_unlock(&lun->lun_lock); 2362 2363 /* send msg back to other side */ 2364 msg_info.hdr.original_sc = ctsio->io_hdr.remote_io; 2365 msg_info.hdr.serializing_sc = (union ctl_io *)ctsio; 2366 msg_info.hdr.msg_type = CTL_MSG_R2R; 2367 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2368 sizeof(msg_info.hdr), M_WAITOK); 2369 } 2370 break; 2371 case CTL_ACTION_OVERLAP: 2372 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2373 mtx_unlock(&lun->lun_lock); 2374 ctl_set_overlapped_cmd(ctsio); 2375 goto badjuju; 2376 case CTL_ACTION_OVERLAP_TAG: 2377 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2378 mtx_unlock(&lun->lun_lock); 2379 ctl_set_overlapped_tag(ctsio, ctsio->tag_num); 2380 goto badjuju; 2381 case CTL_ACTION_ERROR: 2382 default: 2383 TAILQ_REMOVE(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 2384 mtx_unlock(&lun->lun_lock); 2385 2386 ctl_set_internal_failure(ctsio, /*sks_valid*/ 0, 2387 /*retry_count*/ 0); 2388badjuju: 2389 ctl_copy_sense_data_back((union ctl_io *)ctsio, &msg_info); 2390 msg_info.hdr.original_sc = ctsio->io_hdr.remote_io; 2391 msg_info.hdr.serializing_sc = NULL; 2392 msg_info.hdr.msg_type = CTL_MSG_BAD_JUJU; 2393 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 2394 sizeof(msg_info.scsi), M_WAITOK); 2395 ctl_free_io((union ctl_io *)ctsio); 2396 break; 2397 } 2398} 2399 2400/* 2401 * Returns 0 for success, errno for failure. 2402 */ 2403static void 2404ctl_ioctl_fill_ooa(struct ctl_lun *lun, uint32_t *cur_fill_num, 2405 struct ctl_ooa *ooa_hdr, struct ctl_ooa_entry *kern_entries) 2406{ 2407 union ctl_io *io; 2408 2409 mtx_lock(&lun->lun_lock); 2410 for (io = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); (io != NULL); 2411 (*cur_fill_num)++, io = (union ctl_io *)TAILQ_NEXT(&io->io_hdr, 2412 ooa_links)) { 2413 struct ctl_ooa_entry *entry; 2414 2415 /* 2416 * If we've got more than we can fit, just count the 2417 * remaining entries. 2418 */ 2419 if (*cur_fill_num >= ooa_hdr->alloc_num) 2420 continue; 2421 2422 entry = &kern_entries[*cur_fill_num]; 2423 2424 entry->tag_num = io->scsiio.tag_num; 2425 entry->lun_num = lun->lun; 2426#ifdef CTL_TIME_IO 2427 entry->start_bt = io->io_hdr.start_bt; 2428#endif 2429 bcopy(io->scsiio.cdb, entry->cdb, io->scsiio.cdb_len); 2430 entry->cdb_len = io->scsiio.cdb_len; 2431 if (io->io_hdr.flags & CTL_FLAG_BLOCKED) 2432 entry->cmd_flags |= CTL_OOACMD_FLAG_BLOCKED; 2433 2434 if (io->io_hdr.flags & CTL_FLAG_DMA_INPROG) 2435 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA; 2436 2437 if (io->io_hdr.flags & CTL_FLAG_ABORT) 2438 entry->cmd_flags |= CTL_OOACMD_FLAG_ABORT; 2439 2440 if (io->io_hdr.flags & CTL_FLAG_IS_WAS_ON_RTR) 2441 entry->cmd_flags |= CTL_OOACMD_FLAG_RTR; 2442 2443 if (io->io_hdr.flags & CTL_FLAG_DMA_QUEUED) 2444 entry->cmd_flags |= CTL_OOACMD_FLAG_DMA_QUEUED; 2445 } 2446 mtx_unlock(&lun->lun_lock); 2447} 2448 2449static void * 2450ctl_copyin_alloc(void *user_addr, unsigned int len, char *error_str, 2451 size_t error_str_len) 2452{ 2453 void *kptr; 2454 2455 kptr = malloc(len, M_CTL, M_WAITOK | M_ZERO); 2456 2457 if (copyin(user_addr, kptr, len) != 0) { 2458 snprintf(error_str, error_str_len, "Error copying %d bytes " 2459 "from user address %p to kernel address %p", len, 2460 user_addr, kptr); 2461 free(kptr, M_CTL); 2462 return (NULL); 2463 } 2464 2465 return (kptr); 2466} 2467 2468static void 2469ctl_free_args(int num_args, struct ctl_be_arg *args) 2470{ 2471 int i; 2472 2473 if (args == NULL) 2474 return; 2475 2476 for (i = 0; i < num_args; i++) { 2477 free(args[i].kname, M_CTL); 2478 free(args[i].kvalue, M_CTL); 2479 } 2480 2481 free(args, M_CTL); 2482} 2483 2484static struct ctl_be_arg * 2485ctl_copyin_args(int num_args, struct ctl_be_arg *uargs, 2486 char *error_str, size_t error_str_len) 2487{ 2488 struct ctl_be_arg *args; 2489 int i; 2490 2491 args = ctl_copyin_alloc(uargs, num_args * sizeof(*args), 2492 error_str, error_str_len); 2493 2494 if (args == NULL) 2495 goto bailout; 2496 2497 for (i = 0; i < num_args; i++) { 2498 args[i].kname = NULL; 2499 args[i].kvalue = NULL; 2500 } 2501 2502 for (i = 0; i < num_args; i++) { 2503 uint8_t *tmpptr; 2504 2505 if (args[i].namelen == 0) { 2506 snprintf(error_str, error_str_len, "Argument %d " 2507 "name length is zero", i); 2508 goto bailout; 2509 } 2510 2511 args[i].kname = ctl_copyin_alloc(args[i].name, 2512 args[i].namelen, error_str, error_str_len); 2513 if (args[i].kname == NULL) 2514 goto bailout; 2515 2516 if (args[i].kname[args[i].namelen - 1] != '\0') { 2517 snprintf(error_str, error_str_len, "Argument %d " 2518 "name is not NUL-terminated", i); 2519 goto bailout; 2520 } 2521 2522 if (args[i].flags & CTL_BEARG_RD) { 2523 if (args[i].vallen == 0) { 2524 snprintf(error_str, error_str_len, "Argument %d " 2525 "value length is zero", i); 2526 goto bailout; 2527 } 2528 2529 tmpptr = ctl_copyin_alloc(args[i].value, 2530 args[i].vallen, error_str, error_str_len); 2531 if (tmpptr == NULL) 2532 goto bailout; 2533 2534 if ((args[i].flags & CTL_BEARG_ASCII) 2535 && (tmpptr[args[i].vallen - 1] != '\0')) { 2536 snprintf(error_str, error_str_len, "Argument " 2537 "%d value is not NUL-terminated", i); 2538 free(tmpptr, M_CTL); 2539 goto bailout; 2540 } 2541 args[i].kvalue = tmpptr; 2542 } else { 2543 args[i].kvalue = malloc(args[i].vallen, 2544 M_CTL, M_WAITOK | M_ZERO); 2545 } 2546 } 2547 2548 return (args); 2549bailout: 2550 2551 ctl_free_args(num_args, args); 2552 2553 return (NULL); 2554} 2555 2556static void 2557ctl_copyout_args(int num_args, struct ctl_be_arg *args) 2558{ 2559 int i; 2560 2561 for (i = 0; i < num_args; i++) { 2562 if (args[i].flags & CTL_BEARG_WR) 2563 copyout(args[i].kvalue, args[i].value, args[i].vallen); 2564 } 2565} 2566 2567/* 2568 * Escape characters that are illegal or not recommended in XML. 2569 */ 2570int 2571ctl_sbuf_printf_esc(struct sbuf *sb, char *str, int size) 2572{ 2573 char *end = str + size; 2574 int retval; 2575 2576 retval = 0; 2577 2578 for (; *str && str < end; str++) { 2579 switch (*str) { 2580 case '&': 2581 retval = sbuf_printf(sb, "&"); 2582 break; 2583 case '>': 2584 retval = sbuf_printf(sb, ">"); 2585 break; 2586 case '<': 2587 retval = sbuf_printf(sb, "<"); 2588 break; 2589 default: 2590 retval = sbuf_putc(sb, *str); 2591 break; 2592 } 2593 2594 if (retval != 0) 2595 break; 2596 2597 } 2598 2599 return (retval); 2600} 2601 2602static void 2603ctl_id_sbuf(struct ctl_devid *id, struct sbuf *sb) 2604{ 2605 struct scsi_vpd_id_descriptor *desc; 2606 int i; 2607 2608 if (id == NULL || id->len < 4) 2609 return; 2610 desc = (struct scsi_vpd_id_descriptor *)id->data; 2611 switch (desc->id_type & SVPD_ID_TYPE_MASK) { 2612 case SVPD_ID_TYPE_T10: 2613 sbuf_printf(sb, "t10."); 2614 break; 2615 case SVPD_ID_TYPE_EUI64: 2616 sbuf_printf(sb, "eui."); 2617 break; 2618 case SVPD_ID_TYPE_NAA: 2619 sbuf_printf(sb, "naa."); 2620 break; 2621 case SVPD_ID_TYPE_SCSI_NAME: 2622 break; 2623 } 2624 switch (desc->proto_codeset & SVPD_ID_CODESET_MASK) { 2625 case SVPD_ID_CODESET_BINARY: 2626 for (i = 0; i < desc->length; i++) 2627 sbuf_printf(sb, "%02x", desc->identifier[i]); 2628 break; 2629 case SVPD_ID_CODESET_ASCII: 2630 sbuf_printf(sb, "%.*s", (int)desc->length, 2631 (char *)desc->identifier); 2632 break; 2633 case SVPD_ID_CODESET_UTF8: 2634 sbuf_printf(sb, "%s", (char *)desc->identifier); 2635 break; 2636 } 2637} 2638 2639static int 2640ctl_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 2641 struct thread *td) 2642{ 2643 struct ctl_softc *softc = dev->si_drv1; 2644 struct ctl_port *port; 2645 struct ctl_lun *lun; 2646 int retval; 2647 2648 retval = 0; 2649 2650 switch (cmd) { 2651 case CTL_IO: 2652 retval = ctl_ioctl_io(dev, cmd, addr, flag, td); 2653 break; 2654 case CTL_ENABLE_PORT: 2655 case CTL_DISABLE_PORT: 2656 case CTL_SET_PORT_WWNS: { 2657 struct ctl_port *port; 2658 struct ctl_port_entry *entry; 2659 2660 entry = (struct ctl_port_entry *)addr; 2661 2662 mtx_lock(&softc->ctl_lock); 2663 STAILQ_FOREACH(port, &softc->port_list, links) { 2664 int action, done; 2665 2666 if (port->targ_port < softc->port_min || 2667 port->targ_port >= softc->port_max) 2668 continue; 2669 2670 action = 0; 2671 done = 0; 2672 if ((entry->port_type == CTL_PORT_NONE) 2673 && (entry->targ_port == port->targ_port)) { 2674 /* 2675 * If the user only wants to enable or 2676 * disable or set WWNs on a specific port, 2677 * do the operation and we're done. 2678 */ 2679 action = 1; 2680 done = 1; 2681 } else if (entry->port_type & port->port_type) { 2682 /* 2683 * Compare the user's type mask with the 2684 * particular frontend type to see if we 2685 * have a match. 2686 */ 2687 action = 1; 2688 done = 0; 2689 2690 /* 2691 * Make sure the user isn't trying to set 2692 * WWNs on multiple ports at the same time. 2693 */ 2694 if (cmd == CTL_SET_PORT_WWNS) { 2695 printf("%s: Can't set WWNs on " 2696 "multiple ports\n", __func__); 2697 retval = EINVAL; 2698 break; 2699 } 2700 } 2701 if (action == 0) 2702 continue; 2703 2704 /* 2705 * XXX KDM we have to drop the lock here, because 2706 * the online/offline operations can potentially 2707 * block. We need to reference count the frontends 2708 * so they can't go away, 2709 */ 2710 if (cmd == CTL_ENABLE_PORT) { 2711 mtx_unlock(&softc->ctl_lock); 2712 ctl_port_online(port); 2713 mtx_lock(&softc->ctl_lock); 2714 } else if (cmd == CTL_DISABLE_PORT) { 2715 mtx_unlock(&softc->ctl_lock); 2716 ctl_port_offline(port); 2717 mtx_lock(&softc->ctl_lock); 2718 } else if (cmd == CTL_SET_PORT_WWNS) { 2719 ctl_port_set_wwns(port, 2720 (entry->flags & CTL_PORT_WWNN_VALID) ? 2721 1 : 0, entry->wwnn, 2722 (entry->flags & CTL_PORT_WWPN_VALID) ? 2723 1 : 0, entry->wwpn); 2724 } 2725 if (done != 0) 2726 break; 2727 } 2728 mtx_unlock(&softc->ctl_lock); 2729 break; 2730 } 2731 case CTL_GET_OOA: { 2732 struct ctl_ooa *ooa_hdr; 2733 struct ctl_ooa_entry *entries; 2734 uint32_t cur_fill_num; 2735 2736 ooa_hdr = (struct ctl_ooa *)addr; 2737 2738 if ((ooa_hdr->alloc_len == 0) 2739 || (ooa_hdr->alloc_num == 0)) { 2740 printf("%s: CTL_GET_OOA: alloc len %u and alloc num %u " 2741 "must be non-zero\n", __func__, 2742 ooa_hdr->alloc_len, ooa_hdr->alloc_num); 2743 retval = EINVAL; 2744 break; 2745 } 2746 2747 if (ooa_hdr->alloc_len != (ooa_hdr->alloc_num * 2748 sizeof(struct ctl_ooa_entry))) { 2749 printf("%s: CTL_GET_OOA: alloc len %u must be alloc " 2750 "num %d * sizeof(struct ctl_ooa_entry) %zd\n", 2751 __func__, ooa_hdr->alloc_len, 2752 ooa_hdr->alloc_num,sizeof(struct ctl_ooa_entry)); 2753 retval = EINVAL; 2754 break; 2755 } 2756 2757 entries = malloc(ooa_hdr->alloc_len, M_CTL, M_WAITOK | M_ZERO); 2758 if (entries == NULL) { 2759 printf("%s: could not allocate %d bytes for OOA " 2760 "dump\n", __func__, ooa_hdr->alloc_len); 2761 retval = ENOMEM; 2762 break; 2763 } 2764 2765 mtx_lock(&softc->ctl_lock); 2766 if ((ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) == 0 && 2767 (ooa_hdr->lun_num >= ctl_max_luns || 2768 softc->ctl_luns[ooa_hdr->lun_num] == NULL)) { 2769 mtx_unlock(&softc->ctl_lock); 2770 free(entries, M_CTL); 2771 printf("%s: CTL_GET_OOA: invalid LUN %ju\n", 2772 __func__, (uintmax_t)ooa_hdr->lun_num); 2773 retval = EINVAL; 2774 break; 2775 } 2776 2777 cur_fill_num = 0; 2778 2779 if (ooa_hdr->flags & CTL_OOA_FLAG_ALL_LUNS) { 2780 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2781 ctl_ioctl_fill_ooa(lun, &cur_fill_num, 2782 ooa_hdr, entries); 2783 } 2784 } else { 2785 lun = softc->ctl_luns[ooa_hdr->lun_num]; 2786 ctl_ioctl_fill_ooa(lun, &cur_fill_num, ooa_hdr, 2787 entries); 2788 } 2789 mtx_unlock(&softc->ctl_lock); 2790 2791 ooa_hdr->fill_num = min(cur_fill_num, ooa_hdr->alloc_num); 2792 ooa_hdr->fill_len = ooa_hdr->fill_num * 2793 sizeof(struct ctl_ooa_entry); 2794 retval = copyout(entries, ooa_hdr->entries, ooa_hdr->fill_len); 2795 if (retval != 0) { 2796 printf("%s: error copying out %d bytes for OOA dump\n", 2797 __func__, ooa_hdr->fill_len); 2798 } 2799 2800 getbinuptime(&ooa_hdr->cur_bt); 2801 2802 if (cur_fill_num > ooa_hdr->alloc_num) { 2803 ooa_hdr->dropped_num = cur_fill_num -ooa_hdr->alloc_num; 2804 ooa_hdr->status = CTL_OOA_NEED_MORE_SPACE; 2805 } else { 2806 ooa_hdr->dropped_num = 0; 2807 ooa_hdr->status = CTL_OOA_OK; 2808 } 2809 2810 free(entries, M_CTL); 2811 break; 2812 } 2813 case CTL_DELAY_IO: { 2814 struct ctl_io_delay_info *delay_info; 2815 2816 delay_info = (struct ctl_io_delay_info *)addr; 2817 2818#ifdef CTL_IO_DELAY 2819 mtx_lock(&softc->ctl_lock); 2820 if (delay_info->lun_id >= ctl_max_luns || 2821 (lun = softc->ctl_luns[delay_info->lun_id]) == NULL) { 2822 mtx_unlock(&softc->ctl_lock); 2823 delay_info->status = CTL_DELAY_STATUS_INVALID_LUN; 2824 break; 2825 } 2826 mtx_lock(&lun->lun_lock); 2827 mtx_unlock(&softc->ctl_lock); 2828 delay_info->status = CTL_DELAY_STATUS_OK; 2829 switch (delay_info->delay_type) { 2830 case CTL_DELAY_TYPE_CONT: 2831 case CTL_DELAY_TYPE_ONESHOT: 2832 break; 2833 default: 2834 delay_info->status = CTL_DELAY_STATUS_INVALID_TYPE; 2835 break; 2836 } 2837 switch (delay_info->delay_loc) { 2838 case CTL_DELAY_LOC_DATAMOVE: 2839 lun->delay_info.datamove_type = delay_info->delay_type; 2840 lun->delay_info.datamove_delay = delay_info->delay_secs; 2841 break; 2842 case CTL_DELAY_LOC_DONE: 2843 lun->delay_info.done_type = delay_info->delay_type; 2844 lun->delay_info.done_delay = delay_info->delay_secs; 2845 break; 2846 default: 2847 delay_info->status = CTL_DELAY_STATUS_INVALID_LOC; 2848 break; 2849 } 2850 mtx_unlock(&lun->lun_lock); 2851#else 2852 delay_info->status = CTL_DELAY_STATUS_NOT_IMPLEMENTED; 2853#endif /* CTL_IO_DELAY */ 2854 break; 2855 } 2856#ifdef CTL_LEGACY_STATS 2857 case CTL_GETSTATS: { 2858 struct ctl_stats *stats = (struct ctl_stats *)addr; 2859 int i; 2860 2861 /* 2862 * XXX KDM no locking here. If the LUN list changes, 2863 * things can blow up. 2864 */ 2865 i = 0; 2866 stats->status = CTL_SS_OK; 2867 stats->fill_len = 0; 2868 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2869 if (stats->fill_len + sizeof(lun->legacy_stats) > 2870 stats->alloc_len) { 2871 stats->status = CTL_SS_NEED_MORE_SPACE; 2872 break; 2873 } 2874 retval = copyout(&lun->legacy_stats, &stats->lun_stats[i++], 2875 sizeof(lun->legacy_stats)); 2876 if (retval != 0) 2877 break; 2878 stats->fill_len += sizeof(lun->legacy_stats); 2879 } 2880 stats->num_luns = softc->num_luns; 2881 stats->flags = CTL_STATS_FLAG_NONE; 2882#ifdef CTL_TIME_IO 2883 stats->flags |= CTL_STATS_FLAG_TIME_VALID; 2884#endif 2885 getnanouptime(&stats->timestamp); 2886 break; 2887 } 2888#endif /* CTL_LEGACY_STATS */ 2889 case CTL_ERROR_INJECT: { 2890 struct ctl_error_desc *err_desc, *new_err_desc; 2891 2892 err_desc = (struct ctl_error_desc *)addr; 2893 2894 new_err_desc = malloc(sizeof(*new_err_desc), M_CTL, 2895 M_WAITOK | M_ZERO); 2896 bcopy(err_desc, new_err_desc, sizeof(*new_err_desc)); 2897 2898 mtx_lock(&softc->ctl_lock); 2899 if (err_desc->lun_id >= ctl_max_luns || 2900 (lun = softc->ctl_luns[err_desc->lun_id]) == NULL) { 2901 mtx_unlock(&softc->ctl_lock); 2902 free(new_err_desc, M_CTL); 2903 printf("%s: CTL_ERROR_INJECT: invalid LUN %ju\n", 2904 __func__, (uintmax_t)err_desc->lun_id); 2905 retval = EINVAL; 2906 break; 2907 } 2908 mtx_lock(&lun->lun_lock); 2909 mtx_unlock(&softc->ctl_lock); 2910 2911 /* 2912 * We could do some checking here to verify the validity 2913 * of the request, but given the complexity of error 2914 * injection requests, the checking logic would be fairly 2915 * complex. 2916 * 2917 * For now, if the request is invalid, it just won't get 2918 * executed and might get deleted. 2919 */ 2920 STAILQ_INSERT_TAIL(&lun->error_list, new_err_desc, links); 2921 2922 /* 2923 * XXX KDM check to make sure the serial number is unique, 2924 * in case we somehow manage to wrap. That shouldn't 2925 * happen for a very long time, but it's the right thing to 2926 * do. 2927 */ 2928 new_err_desc->serial = lun->error_serial; 2929 err_desc->serial = lun->error_serial; 2930 lun->error_serial++; 2931 2932 mtx_unlock(&lun->lun_lock); 2933 break; 2934 } 2935 case CTL_ERROR_INJECT_DELETE: { 2936 struct ctl_error_desc *delete_desc, *desc, *desc2; 2937 int delete_done; 2938 2939 delete_desc = (struct ctl_error_desc *)addr; 2940 delete_done = 0; 2941 2942 mtx_lock(&softc->ctl_lock); 2943 if (delete_desc->lun_id >= ctl_max_luns || 2944 (lun = softc->ctl_luns[delete_desc->lun_id]) == NULL) { 2945 mtx_unlock(&softc->ctl_lock); 2946 printf("%s: CTL_ERROR_INJECT_DELETE: invalid LUN %ju\n", 2947 __func__, (uintmax_t)delete_desc->lun_id); 2948 retval = EINVAL; 2949 break; 2950 } 2951 mtx_lock(&lun->lun_lock); 2952 mtx_unlock(&softc->ctl_lock); 2953 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 2954 if (desc->serial != delete_desc->serial) 2955 continue; 2956 2957 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, 2958 links); 2959 free(desc, M_CTL); 2960 delete_done = 1; 2961 } 2962 mtx_unlock(&lun->lun_lock); 2963 if (delete_done == 0) { 2964 printf("%s: CTL_ERROR_INJECT_DELETE: can't find " 2965 "error serial %ju on LUN %u\n", __func__, 2966 delete_desc->serial, delete_desc->lun_id); 2967 retval = EINVAL; 2968 break; 2969 } 2970 break; 2971 } 2972 case CTL_DUMP_STRUCTS: { 2973 int j, k; 2974 struct ctl_port *port; 2975 struct ctl_frontend *fe; 2976 2977 mtx_lock(&softc->ctl_lock); 2978 printf("CTL Persistent Reservation information start:\n"); 2979 STAILQ_FOREACH(lun, &softc->lun_list, links) { 2980 mtx_lock(&lun->lun_lock); 2981 if ((lun->flags & CTL_LUN_DISABLED) != 0) { 2982 mtx_unlock(&lun->lun_lock); 2983 continue; 2984 } 2985 2986 for (j = 0; j < ctl_max_ports; j++) { 2987 if (lun->pr_keys[j] == NULL) 2988 continue; 2989 for (k = 0; k < CTL_MAX_INIT_PER_PORT; k++){ 2990 if (lun->pr_keys[j][k] == 0) 2991 continue; 2992 printf(" LUN %ju port %d iid %d key " 2993 "%#jx\n", lun->lun, j, k, 2994 (uintmax_t)lun->pr_keys[j][k]); 2995 } 2996 } 2997 mtx_unlock(&lun->lun_lock); 2998 } 2999 printf("CTL Persistent Reservation information end\n"); 3000 printf("CTL Ports:\n"); 3001 STAILQ_FOREACH(port, &softc->port_list, links) { 3002 printf(" Port %d '%s' Frontend '%s' Type %u pp %d vp %d WWNN " 3003 "%#jx WWPN %#jx\n", port->targ_port, port->port_name, 3004 port->frontend->name, port->port_type, 3005 port->physical_port, port->virtual_port, 3006 (uintmax_t)port->wwnn, (uintmax_t)port->wwpn); 3007 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3008 if (port->wwpn_iid[j].in_use == 0 && 3009 port->wwpn_iid[j].wwpn == 0 && 3010 port->wwpn_iid[j].name == NULL) 3011 continue; 3012 3013 printf(" iid %u use %d WWPN %#jx '%s'\n", 3014 j, port->wwpn_iid[j].in_use, 3015 (uintmax_t)port->wwpn_iid[j].wwpn, 3016 port->wwpn_iid[j].name); 3017 } 3018 } 3019 printf("CTL Port information end\n"); 3020 mtx_unlock(&softc->ctl_lock); 3021 /* 3022 * XXX KDM calling this without a lock. We'd likely want 3023 * to drop the lock before calling the frontend's dump 3024 * routine anyway. 3025 */ 3026 printf("CTL Frontends:\n"); 3027 STAILQ_FOREACH(fe, &softc->fe_list, links) { 3028 printf(" Frontend '%s'\n", fe->name); 3029 if (fe->fe_dump != NULL) 3030 fe->fe_dump(); 3031 } 3032 printf("CTL Frontend information end\n"); 3033 break; 3034 } 3035 case CTL_LUN_REQ: { 3036 struct ctl_lun_req *lun_req; 3037 struct ctl_backend_driver *backend; 3038 3039 lun_req = (struct ctl_lun_req *)addr; 3040 3041 backend = ctl_backend_find(lun_req->backend); 3042 if (backend == NULL) { 3043 lun_req->status = CTL_LUN_ERROR; 3044 snprintf(lun_req->error_str, 3045 sizeof(lun_req->error_str), 3046 "Backend \"%s\" not found.", 3047 lun_req->backend); 3048 break; 3049 } 3050 if (lun_req->num_be_args > 0) { 3051 lun_req->kern_be_args = ctl_copyin_args( 3052 lun_req->num_be_args, 3053 lun_req->be_args, 3054 lun_req->error_str, 3055 sizeof(lun_req->error_str)); 3056 if (lun_req->kern_be_args == NULL) { 3057 lun_req->status = CTL_LUN_ERROR; 3058 break; 3059 } 3060 } 3061 3062 retval = backend->ioctl(dev, cmd, addr, flag, td); 3063 3064 if (lun_req->num_be_args > 0) { 3065 ctl_copyout_args(lun_req->num_be_args, 3066 lun_req->kern_be_args); 3067 ctl_free_args(lun_req->num_be_args, 3068 lun_req->kern_be_args); 3069 } 3070 break; 3071 } 3072 case CTL_LUN_LIST: { 3073 struct sbuf *sb; 3074 struct ctl_lun_list *list; 3075 struct ctl_option *opt; 3076 3077 list = (struct ctl_lun_list *)addr; 3078 3079 /* 3080 * Allocate a fixed length sbuf here, based on the length 3081 * of the user's buffer. We could allocate an auto-extending 3082 * buffer, and then tell the user how much larger our 3083 * amount of data is than his buffer, but that presents 3084 * some problems: 3085 * 3086 * 1. The sbuf(9) routines use a blocking malloc, and so 3087 * we can't hold a lock while calling them with an 3088 * auto-extending buffer. 3089 * 3090 * 2. There is not currently a LUN reference counting 3091 * mechanism, outside of outstanding transactions on 3092 * the LUN's OOA queue. So a LUN could go away on us 3093 * while we're getting the LUN number, backend-specific 3094 * information, etc. Thus, given the way things 3095 * currently work, we need to hold the CTL lock while 3096 * grabbing LUN information. 3097 * 3098 * So, from the user's standpoint, the best thing to do is 3099 * allocate what he thinks is a reasonable buffer length, 3100 * and then if he gets a CTL_LUN_LIST_NEED_MORE_SPACE error, 3101 * double the buffer length and try again. (And repeat 3102 * that until he succeeds.) 3103 */ 3104 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3105 if (sb == NULL) { 3106 list->status = CTL_LUN_LIST_ERROR; 3107 snprintf(list->error_str, sizeof(list->error_str), 3108 "Unable to allocate %d bytes for LUN list", 3109 list->alloc_len); 3110 break; 3111 } 3112 3113 sbuf_printf(sb, "<ctllunlist>\n"); 3114 3115 mtx_lock(&softc->ctl_lock); 3116 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3117 mtx_lock(&lun->lun_lock); 3118 retval = sbuf_printf(sb, "<lun id=\"%ju\">\n", 3119 (uintmax_t)lun->lun); 3120 3121 /* 3122 * Bail out as soon as we see that we've overfilled 3123 * the buffer. 3124 */ 3125 if (retval != 0) 3126 break; 3127 3128 retval = sbuf_printf(sb, "\t<backend_type>%s" 3129 "</backend_type>\n", 3130 (lun->backend == NULL) ? "none" : 3131 lun->backend->name); 3132 3133 if (retval != 0) 3134 break; 3135 3136 retval = sbuf_printf(sb, "\t<lun_type>%d</lun_type>\n", 3137 lun->be_lun->lun_type); 3138 3139 if (retval != 0) 3140 break; 3141 3142 if (lun->backend == NULL) { 3143 retval = sbuf_printf(sb, "</lun>\n"); 3144 if (retval != 0) 3145 break; 3146 continue; 3147 } 3148 3149 retval = sbuf_printf(sb, "\t<size>%ju</size>\n", 3150 (lun->be_lun->maxlba > 0) ? 3151 lun->be_lun->maxlba + 1 : 0); 3152 3153 if (retval != 0) 3154 break; 3155 3156 retval = sbuf_printf(sb, "\t<blocksize>%u</blocksize>\n", 3157 lun->be_lun->blocksize); 3158 3159 if (retval != 0) 3160 break; 3161 3162 retval = sbuf_printf(sb, "\t<serial_number>"); 3163 3164 if (retval != 0) 3165 break; 3166 3167 retval = ctl_sbuf_printf_esc(sb, 3168 lun->be_lun->serial_num, 3169 sizeof(lun->be_lun->serial_num)); 3170 3171 if (retval != 0) 3172 break; 3173 3174 retval = sbuf_printf(sb, "</serial_number>\n"); 3175 3176 if (retval != 0) 3177 break; 3178 3179 retval = sbuf_printf(sb, "\t<device_id>"); 3180 3181 if (retval != 0) 3182 break; 3183 3184 retval = ctl_sbuf_printf_esc(sb, 3185 lun->be_lun->device_id, 3186 sizeof(lun->be_lun->device_id)); 3187 3188 if (retval != 0) 3189 break; 3190 3191 retval = sbuf_printf(sb, "</device_id>\n"); 3192 3193 if (retval != 0) 3194 break; 3195 3196 if (lun->backend->lun_info != NULL) { 3197 retval = lun->backend->lun_info(lun->be_lun->be_lun, sb); 3198 if (retval != 0) 3199 break; 3200 } 3201 STAILQ_FOREACH(opt, &lun->be_lun->options, links) { 3202 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3203 opt->name, opt->value, opt->name); 3204 if (retval != 0) 3205 break; 3206 } 3207 3208 retval = sbuf_printf(sb, "</lun>\n"); 3209 3210 if (retval != 0) 3211 break; 3212 mtx_unlock(&lun->lun_lock); 3213 } 3214 if (lun != NULL) 3215 mtx_unlock(&lun->lun_lock); 3216 mtx_unlock(&softc->ctl_lock); 3217 3218 if ((retval != 0) 3219 || ((retval = sbuf_printf(sb, "</ctllunlist>\n")) != 0)) { 3220 retval = 0; 3221 sbuf_delete(sb); 3222 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3223 snprintf(list->error_str, sizeof(list->error_str), 3224 "Out of space, %d bytes is too small", 3225 list->alloc_len); 3226 break; 3227 } 3228 3229 sbuf_finish(sb); 3230 3231 retval = copyout(sbuf_data(sb), list->lun_xml, 3232 sbuf_len(sb) + 1); 3233 3234 list->fill_len = sbuf_len(sb) + 1; 3235 list->status = CTL_LUN_LIST_OK; 3236 sbuf_delete(sb); 3237 break; 3238 } 3239 case CTL_ISCSI: { 3240 struct ctl_iscsi *ci; 3241 struct ctl_frontend *fe; 3242 3243 ci = (struct ctl_iscsi *)addr; 3244 3245 fe = ctl_frontend_find("iscsi"); 3246 if (fe == NULL) { 3247 ci->status = CTL_ISCSI_ERROR; 3248 snprintf(ci->error_str, sizeof(ci->error_str), 3249 "Frontend \"iscsi\" not found."); 3250 break; 3251 } 3252 3253 retval = fe->ioctl(dev, cmd, addr, flag, td); 3254 break; 3255 } 3256 case CTL_PORT_REQ: { 3257 struct ctl_req *req; 3258 struct ctl_frontend *fe; 3259 3260 req = (struct ctl_req *)addr; 3261 3262 fe = ctl_frontend_find(req->driver); 3263 if (fe == NULL) { 3264 req->status = CTL_LUN_ERROR; 3265 snprintf(req->error_str, sizeof(req->error_str), 3266 "Frontend \"%s\" not found.", req->driver); 3267 break; 3268 } 3269 if (req->num_args > 0) { 3270 req->kern_args = ctl_copyin_args(req->num_args, 3271 req->args, req->error_str, sizeof(req->error_str)); 3272 if (req->kern_args == NULL) { 3273 req->status = CTL_LUN_ERROR; 3274 break; 3275 } 3276 } 3277 3278 if (fe->ioctl) 3279 retval = fe->ioctl(dev, cmd, addr, flag, td); 3280 else 3281 retval = ENODEV; 3282 3283 if (req->num_args > 0) { 3284 ctl_copyout_args(req->num_args, req->kern_args); 3285 ctl_free_args(req->num_args, req->kern_args); 3286 } 3287 break; 3288 } 3289 case CTL_PORT_LIST: { 3290 struct sbuf *sb; 3291 struct ctl_port *port; 3292 struct ctl_lun_list *list; 3293 struct ctl_option *opt; 3294 int j; 3295 uint32_t plun; 3296 3297 list = (struct ctl_lun_list *)addr; 3298 3299 sb = sbuf_new(NULL, NULL, list->alloc_len, SBUF_FIXEDLEN); 3300 if (sb == NULL) { 3301 list->status = CTL_LUN_LIST_ERROR; 3302 snprintf(list->error_str, sizeof(list->error_str), 3303 "Unable to allocate %d bytes for LUN list", 3304 list->alloc_len); 3305 break; 3306 } 3307 3308 sbuf_printf(sb, "<ctlportlist>\n"); 3309 3310 mtx_lock(&softc->ctl_lock); 3311 STAILQ_FOREACH(port, &softc->port_list, links) { 3312 retval = sbuf_printf(sb, "<targ_port id=\"%ju\">\n", 3313 (uintmax_t)port->targ_port); 3314 3315 /* 3316 * Bail out as soon as we see that we've overfilled 3317 * the buffer. 3318 */ 3319 if (retval != 0) 3320 break; 3321 3322 retval = sbuf_printf(sb, "\t<frontend_type>%s" 3323 "</frontend_type>\n", port->frontend->name); 3324 if (retval != 0) 3325 break; 3326 3327 retval = sbuf_printf(sb, "\t<port_type>%d</port_type>\n", 3328 port->port_type); 3329 if (retval != 0) 3330 break; 3331 3332 retval = sbuf_printf(sb, "\t<online>%s</online>\n", 3333 (port->status & CTL_PORT_STATUS_ONLINE) ? "YES" : "NO"); 3334 if (retval != 0) 3335 break; 3336 3337 retval = sbuf_printf(sb, "\t<port_name>%s</port_name>\n", 3338 port->port_name); 3339 if (retval != 0) 3340 break; 3341 3342 retval = sbuf_printf(sb, "\t<physical_port>%d</physical_port>\n", 3343 port->physical_port); 3344 if (retval != 0) 3345 break; 3346 3347 retval = sbuf_printf(sb, "\t<virtual_port>%d</virtual_port>\n", 3348 port->virtual_port); 3349 if (retval != 0) 3350 break; 3351 3352 if (port->target_devid != NULL) { 3353 sbuf_printf(sb, "\t<target>"); 3354 ctl_id_sbuf(port->target_devid, sb); 3355 sbuf_printf(sb, "</target>\n"); 3356 } 3357 3358 if (port->port_devid != NULL) { 3359 sbuf_printf(sb, "\t<port>"); 3360 ctl_id_sbuf(port->port_devid, sb); 3361 sbuf_printf(sb, "</port>\n"); 3362 } 3363 3364 if (port->port_info != NULL) { 3365 retval = port->port_info(port->onoff_arg, sb); 3366 if (retval != 0) 3367 break; 3368 } 3369 STAILQ_FOREACH(opt, &port->options, links) { 3370 retval = sbuf_printf(sb, "\t<%s>%s</%s>\n", 3371 opt->name, opt->value, opt->name); 3372 if (retval != 0) 3373 break; 3374 } 3375 3376 if (port->lun_map != NULL) { 3377 sbuf_printf(sb, "\t<lun_map>on</lun_map>\n"); 3378 for (j = 0; j < port->lun_map_size; j++) { 3379 plun = ctl_lun_map_from_port(port, j); 3380 if (plun == UINT32_MAX) 3381 continue; 3382 sbuf_printf(sb, 3383 "\t<lun id=\"%u\">%u</lun>\n", 3384 j, plun); 3385 } 3386 } 3387 3388 for (j = 0; j < CTL_MAX_INIT_PER_PORT; j++) { 3389 if (port->wwpn_iid[j].in_use == 0 || 3390 (port->wwpn_iid[j].wwpn == 0 && 3391 port->wwpn_iid[j].name == NULL)) 3392 continue; 3393 3394 if (port->wwpn_iid[j].name != NULL) 3395 retval = sbuf_printf(sb, 3396 "\t<initiator id=\"%u\">%s</initiator>\n", 3397 j, port->wwpn_iid[j].name); 3398 else 3399 retval = sbuf_printf(sb, 3400 "\t<initiator id=\"%u\">naa.%08jx</initiator>\n", 3401 j, port->wwpn_iid[j].wwpn); 3402 if (retval != 0) 3403 break; 3404 } 3405 if (retval != 0) 3406 break; 3407 3408 retval = sbuf_printf(sb, "</targ_port>\n"); 3409 if (retval != 0) 3410 break; 3411 } 3412 mtx_unlock(&softc->ctl_lock); 3413 3414 if ((retval != 0) 3415 || ((retval = sbuf_printf(sb, "</ctlportlist>\n")) != 0)) { 3416 retval = 0; 3417 sbuf_delete(sb); 3418 list->status = CTL_LUN_LIST_NEED_MORE_SPACE; 3419 snprintf(list->error_str, sizeof(list->error_str), 3420 "Out of space, %d bytes is too small", 3421 list->alloc_len); 3422 break; 3423 } 3424 3425 sbuf_finish(sb); 3426 3427 retval = copyout(sbuf_data(sb), list->lun_xml, 3428 sbuf_len(sb) + 1); 3429 3430 list->fill_len = sbuf_len(sb) + 1; 3431 list->status = CTL_LUN_LIST_OK; 3432 sbuf_delete(sb); 3433 break; 3434 } 3435 case CTL_LUN_MAP: { 3436 struct ctl_lun_map *lm = (struct ctl_lun_map *)addr; 3437 struct ctl_port *port; 3438 3439 mtx_lock(&softc->ctl_lock); 3440 if (lm->port < softc->port_min || 3441 lm->port >= softc->port_max || 3442 (port = softc->ctl_ports[lm->port]) == NULL) { 3443 mtx_unlock(&softc->ctl_lock); 3444 return (ENXIO); 3445 } 3446 if (port->status & CTL_PORT_STATUS_ONLINE) { 3447 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3448 if (ctl_lun_map_to_port(port, lun->lun) == 3449 UINT32_MAX) 3450 continue; 3451 mtx_lock(&lun->lun_lock); 3452 ctl_est_ua_port(lun, lm->port, -1, 3453 CTL_UA_LUN_CHANGE); 3454 mtx_unlock(&lun->lun_lock); 3455 } 3456 } 3457 mtx_unlock(&softc->ctl_lock); // XXX: port_enable sleeps 3458 if (lm->plun != UINT32_MAX) { 3459 if (lm->lun == UINT32_MAX) 3460 retval = ctl_lun_map_unset(port, lm->plun); 3461 else if (lm->lun < ctl_max_luns && 3462 softc->ctl_luns[lm->lun] != NULL) 3463 retval = ctl_lun_map_set(port, lm->plun, lm->lun); 3464 else 3465 return (ENXIO); 3466 } else { 3467 if (lm->lun == UINT32_MAX) 3468 retval = ctl_lun_map_deinit(port); 3469 else 3470 retval = ctl_lun_map_init(port); 3471 } 3472 if (port->status & CTL_PORT_STATUS_ONLINE) 3473 ctl_isc_announce_port(port); 3474 break; 3475 } 3476 case CTL_GET_LUN_STATS: { 3477 struct ctl_get_io_stats *stats = (struct ctl_get_io_stats *)addr; 3478 int i; 3479 3480 /* 3481 * XXX KDM no locking here. If the LUN list changes, 3482 * things can blow up. 3483 */ 3484 i = 0; 3485 stats->status = CTL_SS_OK; 3486 stats->fill_len = 0; 3487 STAILQ_FOREACH(lun, &softc->lun_list, links) { 3488 if (lun->lun < stats->first_item) 3489 continue; 3490 if (stats->fill_len + sizeof(lun->stats) > 3491 stats->alloc_len) { 3492 stats->status = CTL_SS_NEED_MORE_SPACE; 3493 break; 3494 } 3495 retval = copyout(&lun->stats, &stats->stats[i++], 3496 sizeof(lun->stats)); 3497 if (retval != 0) 3498 break; 3499 stats->fill_len += sizeof(lun->stats); 3500 } 3501 stats->num_items = softc->num_luns; 3502 stats->flags = CTL_STATS_FLAG_NONE; 3503#ifdef CTL_TIME_IO 3504 stats->flags |= CTL_STATS_FLAG_TIME_VALID; 3505#endif 3506 getnanouptime(&stats->timestamp); 3507 break; 3508 } 3509 case CTL_GET_PORT_STATS: { 3510 struct ctl_get_io_stats *stats = (struct ctl_get_io_stats *)addr; 3511 int i; 3512 3513 /* 3514 * XXX KDM no locking here. If the LUN list changes, 3515 * things can blow up. 3516 */ 3517 i = 0; 3518 stats->status = CTL_SS_OK; 3519 stats->fill_len = 0; 3520 STAILQ_FOREACH(port, &softc->port_list, links) { 3521 if (port->targ_port < stats->first_item) 3522 continue; 3523 if (stats->fill_len + sizeof(port->stats) > 3524 stats->alloc_len) { 3525 stats->status = CTL_SS_NEED_MORE_SPACE; 3526 break; 3527 } 3528 retval = copyout(&port->stats, &stats->stats[i++], 3529 sizeof(port->stats)); 3530 if (retval != 0) 3531 break; 3532 stats->fill_len += sizeof(port->stats); 3533 } 3534 stats->num_items = softc->num_ports; 3535 stats->flags = CTL_STATS_FLAG_NONE; 3536#ifdef CTL_TIME_IO 3537 stats->flags |= CTL_STATS_FLAG_TIME_VALID; 3538#endif 3539 getnanouptime(&stats->timestamp); 3540 break; 3541 } 3542 default: { 3543 /* XXX KDM should we fix this? */ 3544#if 0 3545 struct ctl_backend_driver *backend; 3546 unsigned int type; 3547 int found; 3548 3549 found = 0; 3550 3551 /* 3552 * We encode the backend type as the ioctl type for backend 3553 * ioctls. So parse it out here, and then search for a 3554 * backend of this type. 3555 */ 3556 type = _IOC_TYPE(cmd); 3557 3558 STAILQ_FOREACH(backend, &softc->be_list, links) { 3559 if (backend->type == type) { 3560 found = 1; 3561 break; 3562 } 3563 } 3564 if (found == 0) { 3565 printf("ctl: unknown ioctl command %#lx or backend " 3566 "%d\n", cmd, type); 3567 retval = EINVAL; 3568 break; 3569 } 3570 retval = backend->ioctl(dev, cmd, addr, flag, td); 3571#endif 3572 retval = ENOTTY; 3573 break; 3574 } 3575 } 3576 return (retval); 3577} 3578 3579uint32_t 3580ctl_get_initindex(struct ctl_nexus *nexus) 3581{ 3582 return (nexus->initid + (nexus->targ_port * CTL_MAX_INIT_PER_PORT)); 3583} 3584 3585int 3586ctl_lun_map_init(struct ctl_port *port) 3587{ 3588 struct ctl_softc *softc = port->ctl_softc; 3589 struct ctl_lun *lun; 3590 int size = ctl_lun_map_size; 3591 uint32_t i; 3592 3593 if (port->lun_map == NULL || port->lun_map_size < size) { 3594 port->lun_map_size = 0; 3595 free(port->lun_map, M_CTL); 3596 port->lun_map = malloc(size * sizeof(uint32_t), 3597 M_CTL, M_NOWAIT); 3598 } 3599 if (port->lun_map == NULL) 3600 return (ENOMEM); 3601 for (i = 0; i < size; i++) 3602 port->lun_map[i] = UINT32_MAX; 3603 port->lun_map_size = size; 3604 if (port->status & CTL_PORT_STATUS_ONLINE) { 3605 if (port->lun_disable != NULL) { 3606 STAILQ_FOREACH(lun, &softc->lun_list, links) 3607 port->lun_disable(port->targ_lun_arg, lun->lun); 3608 } 3609 ctl_isc_announce_port(port); 3610 } 3611 return (0); 3612} 3613 3614int 3615ctl_lun_map_deinit(struct ctl_port *port) 3616{ 3617 struct ctl_softc *softc = port->ctl_softc; 3618 struct ctl_lun *lun; 3619 3620 if (port->lun_map == NULL) 3621 return (0); 3622 port->lun_map_size = 0; 3623 free(port->lun_map, M_CTL); 3624 port->lun_map = NULL; 3625 if (port->status & CTL_PORT_STATUS_ONLINE) { 3626 if (port->lun_enable != NULL) { 3627 STAILQ_FOREACH(lun, &softc->lun_list, links) 3628 port->lun_enable(port->targ_lun_arg, lun->lun); 3629 } 3630 ctl_isc_announce_port(port); 3631 } 3632 return (0); 3633} 3634 3635int 3636ctl_lun_map_set(struct ctl_port *port, uint32_t plun, uint32_t glun) 3637{ 3638 int status; 3639 uint32_t old; 3640 3641 if (port->lun_map == NULL) { 3642 status = ctl_lun_map_init(port); 3643 if (status != 0) 3644 return (status); 3645 } 3646 if (plun >= port->lun_map_size) 3647 return (EINVAL); 3648 old = port->lun_map[plun]; 3649 port->lun_map[plun] = glun; 3650 if ((port->status & CTL_PORT_STATUS_ONLINE) && old == UINT32_MAX) { 3651 if (port->lun_enable != NULL) 3652 port->lun_enable(port->targ_lun_arg, plun); 3653 ctl_isc_announce_port(port); 3654 } 3655 return (0); 3656} 3657 3658int 3659ctl_lun_map_unset(struct ctl_port *port, uint32_t plun) 3660{ 3661 uint32_t old; 3662 3663 if (port->lun_map == NULL || plun >= port->lun_map_size) 3664 return (0); 3665 old = port->lun_map[plun]; 3666 port->lun_map[plun] = UINT32_MAX; 3667 if ((port->status & CTL_PORT_STATUS_ONLINE) && old != UINT32_MAX) { 3668 if (port->lun_disable != NULL) 3669 port->lun_disable(port->targ_lun_arg, plun); 3670 ctl_isc_announce_port(port); 3671 } 3672 return (0); 3673} 3674 3675uint32_t 3676ctl_lun_map_from_port(struct ctl_port *port, uint32_t lun_id) 3677{ 3678 3679 if (port == NULL) 3680 return (UINT32_MAX); 3681 if (port->lun_map == NULL) 3682 return (lun_id); 3683 if (lun_id > port->lun_map_size) 3684 return (UINT32_MAX); 3685 return (port->lun_map[lun_id]); 3686} 3687 3688uint32_t 3689ctl_lun_map_to_port(struct ctl_port *port, uint32_t lun_id) 3690{ 3691 uint32_t i; 3692 3693 if (port == NULL) 3694 return (UINT32_MAX); 3695 if (port->lun_map == NULL) 3696 return (lun_id); 3697 for (i = 0; i < port->lun_map_size; i++) { 3698 if (port->lun_map[i] == lun_id) 3699 return (i); 3700 } 3701 return (UINT32_MAX); 3702} 3703 3704uint32_t 3705ctl_decode_lun(uint64_t encoded) 3706{ 3707 uint8_t lun[8]; 3708 uint32_t result = 0xffffffff; 3709 3710 be64enc(lun, encoded); 3711 switch (lun[0] & RPL_LUNDATA_ATYP_MASK) { 3712 case RPL_LUNDATA_ATYP_PERIPH: 3713 if ((lun[0] & 0x3f) == 0 && lun[2] == 0 && lun[3] == 0 && 3714 lun[4] == 0 && lun[5] == 0 && lun[6] == 0 && lun[7] == 0) 3715 result = lun[1]; 3716 break; 3717 case RPL_LUNDATA_ATYP_FLAT: 3718 if (lun[2] == 0 && lun[3] == 0 && lun[4] == 0 && lun[5] == 0 && 3719 lun[6] == 0 && lun[7] == 0) 3720 result = ((lun[0] & 0x3f) << 8) + lun[1]; 3721 break; 3722 case RPL_LUNDATA_ATYP_EXTLUN: 3723 switch (lun[0] & RPL_LUNDATA_EXT_EAM_MASK) { 3724 case 0x02: 3725 switch (lun[0] & RPL_LUNDATA_EXT_LEN_MASK) { 3726 case 0x00: 3727 result = lun[1]; 3728 break; 3729 case 0x10: 3730 result = (lun[1] << 16) + (lun[2] << 8) + 3731 lun[3]; 3732 break; 3733 case 0x20: 3734 if (lun[1] == 0 && lun[6] == 0 && lun[7] == 0) 3735 result = (lun[2] << 24) + 3736 (lun[3] << 16) + (lun[4] << 8) + 3737 lun[5]; 3738 break; 3739 } 3740 break; 3741 case RPL_LUNDATA_EXT_EAM_NOT_SPEC: 3742 result = 0xffffffff; 3743 break; 3744 } 3745 break; 3746 } 3747 return (result); 3748} 3749 3750uint64_t 3751ctl_encode_lun(uint32_t decoded) 3752{ 3753 uint64_t l = decoded; 3754 3755 if (l <= 0xff) 3756 return (((uint64_t)RPL_LUNDATA_ATYP_PERIPH << 56) | (l << 48)); 3757 if (l <= 0x3fff) 3758 return (((uint64_t)RPL_LUNDATA_ATYP_FLAT << 56) | (l << 48)); 3759 if (l <= 0xffffff) 3760 return (((uint64_t)(RPL_LUNDATA_ATYP_EXTLUN | 0x12) << 56) | 3761 (l << 32)); 3762 return ((((uint64_t)RPL_LUNDATA_ATYP_EXTLUN | 0x22) << 56) | (l << 16)); 3763} 3764 3765int 3766ctl_ffz(uint32_t *mask, uint32_t first, uint32_t last) 3767{ 3768 int i; 3769 3770 for (i = first; i < last; i++) { 3771 if ((mask[i / 32] & (1 << (i % 32))) == 0) 3772 return (i); 3773 } 3774 return (-1); 3775} 3776 3777int 3778ctl_set_mask(uint32_t *mask, uint32_t bit) 3779{ 3780 uint32_t chunk, piece; 3781 3782 chunk = bit >> 5; 3783 piece = bit % (sizeof(uint32_t) * 8); 3784 3785 if ((mask[chunk] & (1 << piece)) != 0) 3786 return (-1); 3787 else 3788 mask[chunk] |= (1 << piece); 3789 3790 return (0); 3791} 3792 3793int 3794ctl_clear_mask(uint32_t *mask, uint32_t bit) 3795{ 3796 uint32_t chunk, piece; 3797 3798 chunk = bit >> 5; 3799 piece = bit % (sizeof(uint32_t) * 8); 3800 3801 if ((mask[chunk] & (1 << piece)) == 0) 3802 return (-1); 3803 else 3804 mask[chunk] &= ~(1 << piece); 3805 3806 return (0); 3807} 3808 3809int 3810ctl_is_set(uint32_t *mask, uint32_t bit) 3811{ 3812 uint32_t chunk, piece; 3813 3814 chunk = bit >> 5; 3815 piece = bit % (sizeof(uint32_t) * 8); 3816 3817 if ((mask[chunk] & (1 << piece)) == 0) 3818 return (0); 3819 else 3820 return (1); 3821} 3822 3823static uint64_t 3824ctl_get_prkey(struct ctl_lun *lun, uint32_t residx) 3825{ 3826 uint64_t *t; 3827 3828 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3829 if (t == NULL) 3830 return (0); 3831 return (t[residx % CTL_MAX_INIT_PER_PORT]); 3832} 3833 3834static void 3835ctl_clr_prkey(struct ctl_lun *lun, uint32_t residx) 3836{ 3837 uint64_t *t; 3838 3839 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3840 if (t == NULL) 3841 return; 3842 t[residx % CTL_MAX_INIT_PER_PORT] = 0; 3843} 3844 3845static void 3846ctl_alloc_prkey(struct ctl_lun *lun, uint32_t residx) 3847{ 3848 uint64_t *p; 3849 u_int i; 3850 3851 i = residx/CTL_MAX_INIT_PER_PORT; 3852 if (lun->pr_keys[i] != NULL) 3853 return; 3854 mtx_unlock(&lun->lun_lock); 3855 p = malloc(sizeof(uint64_t) * CTL_MAX_INIT_PER_PORT, M_CTL, 3856 M_WAITOK | M_ZERO); 3857 mtx_lock(&lun->lun_lock); 3858 if (lun->pr_keys[i] == NULL) 3859 lun->pr_keys[i] = p; 3860 else 3861 free(p, M_CTL); 3862} 3863 3864static void 3865ctl_set_prkey(struct ctl_lun *lun, uint32_t residx, uint64_t key) 3866{ 3867 uint64_t *t; 3868 3869 t = lun->pr_keys[residx/CTL_MAX_INIT_PER_PORT]; 3870 KASSERT(t != NULL, ("prkey %d is not allocated", residx)); 3871 t[residx % CTL_MAX_INIT_PER_PORT] = key; 3872} 3873 3874/* 3875 * ctl_softc, pool_name, total_ctl_io are passed in. 3876 * npool is passed out. 3877 */ 3878int 3879ctl_pool_create(struct ctl_softc *ctl_softc, const char *pool_name, 3880 uint32_t total_ctl_io, void **npool) 3881{ 3882 struct ctl_io_pool *pool; 3883 3884 pool = (struct ctl_io_pool *)malloc(sizeof(*pool), M_CTL, 3885 M_NOWAIT | M_ZERO); 3886 if (pool == NULL) 3887 return (ENOMEM); 3888 3889 snprintf(pool->name, sizeof(pool->name), "CTL IO %s", pool_name); 3890 pool->ctl_softc = ctl_softc; 3891#ifdef IO_POOLS 3892 pool->zone = uma_zsecond_create(pool->name, NULL, 3893 NULL, NULL, NULL, ctl_softc->io_zone); 3894 /* uma_prealloc(pool->zone, total_ctl_io); */ 3895#else 3896 pool->zone = ctl_softc->io_zone; 3897#endif 3898 3899 *npool = pool; 3900 return (0); 3901} 3902 3903void 3904ctl_pool_free(struct ctl_io_pool *pool) 3905{ 3906 3907 if (pool == NULL) 3908 return; 3909 3910#ifdef IO_POOLS 3911 uma_zdestroy(pool->zone); 3912#endif 3913 free(pool, M_CTL); 3914} 3915 3916union ctl_io * 3917ctl_alloc_io(void *pool_ref) 3918{ 3919 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3920 union ctl_io *io; 3921 3922 io = uma_zalloc(pool->zone, M_WAITOK); 3923 if (io != NULL) { 3924 io->io_hdr.pool = pool_ref; 3925 CTL_SOFTC(io) = pool->ctl_softc; 3926 } 3927 return (io); 3928} 3929 3930union ctl_io * 3931ctl_alloc_io_nowait(void *pool_ref) 3932{ 3933 struct ctl_io_pool *pool = (struct ctl_io_pool *)pool_ref; 3934 union ctl_io *io; 3935 3936 io = uma_zalloc(pool->zone, M_NOWAIT); 3937 if (io != NULL) { 3938 io->io_hdr.pool = pool_ref; 3939 CTL_SOFTC(io) = pool->ctl_softc; 3940 } 3941 return (io); 3942} 3943 3944void 3945ctl_free_io(union ctl_io *io) 3946{ 3947 struct ctl_io_pool *pool; 3948 3949 if (io == NULL) 3950 return; 3951 3952 pool = (struct ctl_io_pool *)io->io_hdr.pool; 3953 uma_zfree(pool->zone, io); 3954} 3955 3956void 3957ctl_zero_io(union ctl_io *io) 3958{ 3959 struct ctl_io_pool *pool; 3960 3961 if (io == NULL) 3962 return; 3963 3964 /* 3965 * May need to preserve linked list pointers at some point too. 3966 */ 3967 pool = io->io_hdr.pool; 3968 memset(io, 0, sizeof(*io)); 3969 io->io_hdr.pool = pool; 3970 CTL_SOFTC(io) = pool->ctl_softc; 3971} 3972 3973int 3974ctl_expand_number(const char *buf, uint64_t *num) 3975{ 3976 char *endptr; 3977 uint64_t number; 3978 unsigned shift; 3979 3980 number = strtoq(buf, &endptr, 0); 3981 3982 switch (tolower((unsigned char)*endptr)) { 3983 case 'e': 3984 shift = 60; 3985 break; 3986 case 'p': 3987 shift = 50; 3988 break; 3989 case 't': 3990 shift = 40; 3991 break; 3992 case 'g': 3993 shift = 30; 3994 break; 3995 case 'm': 3996 shift = 20; 3997 break; 3998 case 'k': 3999 shift = 10; 4000 break; 4001 case 'b': 4002 case '\0': /* No unit. */ 4003 *num = number; 4004 return (0); 4005 default: 4006 /* Unrecognized unit. */ 4007 return (-1); 4008 } 4009 4010 if ((number << shift) >> shift != number) { 4011 /* Overflow */ 4012 return (-1); 4013 } 4014 *num = number << shift; 4015 return (0); 4016} 4017 4018 4019/* 4020 * This routine could be used in the future to load default and/or saved 4021 * mode page parameters for a particuar lun. 4022 */ 4023static int 4024ctl_init_page_index(struct ctl_lun *lun) 4025{ 4026 int i, page_code; 4027 struct ctl_page_index *page_index; 4028 const char *value; 4029 uint64_t ival; 4030 4031 memcpy(&lun->mode_pages.index, page_index_template, 4032 sizeof(page_index_template)); 4033 4034 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 4035 4036 page_index = &lun->mode_pages.index[i]; 4037 if (lun->be_lun->lun_type == T_DIRECT && 4038 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 4039 continue; 4040 if (lun->be_lun->lun_type == T_PROCESSOR && 4041 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 4042 continue; 4043 if (lun->be_lun->lun_type == T_CDROM && 4044 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 4045 continue; 4046 4047 page_code = page_index->page_code & SMPH_PC_MASK; 4048 switch (page_code) { 4049 case SMS_RW_ERROR_RECOVERY_PAGE: { 4050 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4051 ("subpage %#x for page %#x is incorrect!", 4052 page_index->subpage, page_code)); 4053 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CURRENT], 4054 &rw_er_page_default, 4055 sizeof(rw_er_page_default)); 4056 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_CHANGEABLE], 4057 &rw_er_page_changeable, 4058 sizeof(rw_er_page_changeable)); 4059 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_DEFAULT], 4060 &rw_er_page_default, 4061 sizeof(rw_er_page_default)); 4062 memcpy(&lun->mode_pages.rw_er_page[CTL_PAGE_SAVED], 4063 &rw_er_page_default, 4064 sizeof(rw_er_page_default)); 4065 page_index->page_data = 4066 (uint8_t *)lun->mode_pages.rw_er_page; 4067 break; 4068 } 4069 case SMS_FORMAT_DEVICE_PAGE: { 4070 struct scsi_format_page *format_page; 4071 4072 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4073 ("subpage %#x for page %#x is incorrect!", 4074 page_index->subpage, page_code)); 4075 4076 /* 4077 * Sectors per track are set above. Bytes per 4078 * sector need to be set here on a per-LUN basis. 4079 */ 4080 memcpy(&lun->mode_pages.format_page[CTL_PAGE_CURRENT], 4081 &format_page_default, 4082 sizeof(format_page_default)); 4083 memcpy(&lun->mode_pages.format_page[ 4084 CTL_PAGE_CHANGEABLE], &format_page_changeable, 4085 sizeof(format_page_changeable)); 4086 memcpy(&lun->mode_pages.format_page[CTL_PAGE_DEFAULT], 4087 &format_page_default, 4088 sizeof(format_page_default)); 4089 memcpy(&lun->mode_pages.format_page[CTL_PAGE_SAVED], 4090 &format_page_default, 4091 sizeof(format_page_default)); 4092 4093 format_page = &lun->mode_pages.format_page[ 4094 CTL_PAGE_CURRENT]; 4095 scsi_ulto2b(lun->be_lun->blocksize, 4096 format_page->bytes_per_sector); 4097 4098 format_page = &lun->mode_pages.format_page[ 4099 CTL_PAGE_DEFAULT]; 4100 scsi_ulto2b(lun->be_lun->blocksize, 4101 format_page->bytes_per_sector); 4102 4103 format_page = &lun->mode_pages.format_page[ 4104 CTL_PAGE_SAVED]; 4105 scsi_ulto2b(lun->be_lun->blocksize, 4106 format_page->bytes_per_sector); 4107 4108 page_index->page_data = 4109 (uint8_t *)lun->mode_pages.format_page; 4110 break; 4111 } 4112 case SMS_RIGID_DISK_PAGE: { 4113 struct scsi_rigid_disk_page *rigid_disk_page; 4114 uint32_t sectors_per_cylinder; 4115 uint64_t cylinders; 4116#ifndef __XSCALE__ 4117 int shift; 4118#endif /* !__XSCALE__ */ 4119 4120 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4121 ("subpage %#x for page %#x is incorrect!", 4122 page_index->subpage, page_code)); 4123 4124 /* 4125 * Rotation rate and sectors per track are set 4126 * above. We calculate the cylinders here based on 4127 * capacity. Due to the number of heads and 4128 * sectors per track we're using, smaller arrays 4129 * may turn out to have 0 cylinders. Linux and 4130 * FreeBSD don't pay attention to these mode pages 4131 * to figure out capacity, but Solaris does. It 4132 * seems to deal with 0 cylinders just fine, and 4133 * works out a fake geometry based on the capacity. 4134 */ 4135 memcpy(&lun->mode_pages.rigid_disk_page[ 4136 CTL_PAGE_DEFAULT], &rigid_disk_page_default, 4137 sizeof(rigid_disk_page_default)); 4138 memcpy(&lun->mode_pages.rigid_disk_page[ 4139 CTL_PAGE_CHANGEABLE],&rigid_disk_page_changeable, 4140 sizeof(rigid_disk_page_changeable)); 4141 4142 sectors_per_cylinder = CTL_DEFAULT_SECTORS_PER_TRACK * 4143 CTL_DEFAULT_HEADS; 4144 4145 /* 4146 * The divide method here will be more accurate, 4147 * probably, but results in floating point being 4148 * used in the kernel on i386 (__udivdi3()). On the 4149 * XScale, though, __udivdi3() is implemented in 4150 * software. 4151 * 4152 * The shift method for cylinder calculation is 4153 * accurate if sectors_per_cylinder is a power of 4154 * 2. Otherwise it might be slightly off -- you 4155 * might have a bit of a truncation problem. 4156 */ 4157#ifdef __XSCALE__ 4158 cylinders = (lun->be_lun->maxlba + 1) / 4159 sectors_per_cylinder; 4160#else 4161 for (shift = 31; shift > 0; shift--) { 4162 if (sectors_per_cylinder & (1 << shift)) 4163 break; 4164 } 4165 cylinders = (lun->be_lun->maxlba + 1) >> shift; 4166#endif 4167 4168 /* 4169 * We've basically got 3 bytes, or 24 bits for the 4170 * cylinder size in the mode page. If we're over, 4171 * just round down to 2^24. 4172 */ 4173 if (cylinders > 0xffffff) 4174 cylinders = 0xffffff; 4175 4176 rigid_disk_page = &lun->mode_pages.rigid_disk_page[ 4177 CTL_PAGE_DEFAULT]; 4178 scsi_ulto3b(cylinders, rigid_disk_page->cylinders); 4179 4180 if ((value = ctl_get_opt(&lun->be_lun->options, 4181 "rpm")) != NULL) { 4182 scsi_ulto2b(strtol(value, NULL, 0), 4183 rigid_disk_page->rotation_rate); 4184 } 4185 4186 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_CURRENT], 4187 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4188 sizeof(rigid_disk_page_default)); 4189 memcpy(&lun->mode_pages.rigid_disk_page[CTL_PAGE_SAVED], 4190 &lun->mode_pages.rigid_disk_page[CTL_PAGE_DEFAULT], 4191 sizeof(rigid_disk_page_default)); 4192 4193 page_index->page_data = 4194 (uint8_t *)lun->mode_pages.rigid_disk_page; 4195 break; 4196 } 4197 case SMS_VERIFY_ERROR_RECOVERY_PAGE: { 4198 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4199 ("subpage %#x for page %#x is incorrect!", 4200 page_index->subpage, page_code)); 4201 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_CURRENT], 4202 &verify_er_page_default, 4203 sizeof(verify_er_page_default)); 4204 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_CHANGEABLE], 4205 &verify_er_page_changeable, 4206 sizeof(verify_er_page_changeable)); 4207 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_DEFAULT], 4208 &verify_er_page_default, 4209 sizeof(verify_er_page_default)); 4210 memcpy(&lun->mode_pages.verify_er_page[CTL_PAGE_SAVED], 4211 &verify_er_page_default, 4212 sizeof(verify_er_page_default)); 4213 page_index->page_data = 4214 (uint8_t *)lun->mode_pages.verify_er_page; 4215 break; 4216 } 4217 case SMS_CACHING_PAGE: { 4218 struct scsi_caching_page *caching_page; 4219 4220 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4221 ("subpage %#x for page %#x is incorrect!", 4222 page_index->subpage, page_code)); 4223 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_DEFAULT], 4224 &caching_page_default, 4225 sizeof(caching_page_default)); 4226 memcpy(&lun->mode_pages.caching_page[ 4227 CTL_PAGE_CHANGEABLE], &caching_page_changeable, 4228 sizeof(caching_page_changeable)); 4229 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4230 &caching_page_default, 4231 sizeof(caching_page_default)); 4232 caching_page = &lun->mode_pages.caching_page[ 4233 CTL_PAGE_SAVED]; 4234 value = ctl_get_opt(&lun->be_lun->options, "writecache"); 4235 if (value != NULL && strcmp(value, "off") == 0) 4236 caching_page->flags1 &= ~SCP_WCE; 4237 value = ctl_get_opt(&lun->be_lun->options, "readcache"); 4238 if (value != NULL && strcmp(value, "off") == 0) 4239 caching_page->flags1 |= SCP_RCD; 4240 memcpy(&lun->mode_pages.caching_page[CTL_PAGE_CURRENT], 4241 &lun->mode_pages.caching_page[CTL_PAGE_SAVED], 4242 sizeof(caching_page_default)); 4243 page_index->page_data = 4244 (uint8_t *)lun->mode_pages.caching_page; 4245 break; 4246 } 4247 case SMS_CONTROL_MODE_PAGE: { 4248 switch (page_index->subpage) { 4249 case SMS_SUBPAGE_PAGE_0: { 4250 struct scsi_control_page *control_page; 4251 4252 memcpy(&lun->mode_pages.control_page[ 4253 CTL_PAGE_DEFAULT], 4254 &control_page_default, 4255 sizeof(control_page_default)); 4256 memcpy(&lun->mode_pages.control_page[ 4257 CTL_PAGE_CHANGEABLE], 4258 &control_page_changeable, 4259 sizeof(control_page_changeable)); 4260 memcpy(&lun->mode_pages.control_page[ 4261 CTL_PAGE_SAVED], 4262 &control_page_default, 4263 sizeof(control_page_default)); 4264 control_page = &lun->mode_pages.control_page[ 4265 CTL_PAGE_SAVED]; 4266 value = ctl_get_opt(&lun->be_lun->options, 4267 "reordering"); 4268 if (value != NULL && 4269 strcmp(value, "unrestricted") == 0) { 4270 control_page->queue_flags &= 4271 ~SCP_QUEUE_ALG_MASK; 4272 control_page->queue_flags |= 4273 SCP_QUEUE_ALG_UNRESTRICTED; 4274 } 4275 memcpy(&lun->mode_pages.control_page[ 4276 CTL_PAGE_CURRENT], 4277 &lun->mode_pages.control_page[ 4278 CTL_PAGE_SAVED], 4279 sizeof(control_page_default)); 4280 page_index->page_data = 4281 (uint8_t *)lun->mode_pages.control_page; 4282 break; 4283 } 4284 case 0x01: 4285 memcpy(&lun->mode_pages.control_ext_page[ 4286 CTL_PAGE_DEFAULT], 4287 &control_ext_page_default, 4288 sizeof(control_ext_page_default)); 4289 memcpy(&lun->mode_pages.control_ext_page[ 4290 CTL_PAGE_CHANGEABLE], 4291 &control_ext_page_changeable, 4292 sizeof(control_ext_page_changeable)); 4293 memcpy(&lun->mode_pages.control_ext_page[ 4294 CTL_PAGE_SAVED], 4295 &control_ext_page_default, 4296 sizeof(control_ext_page_default)); 4297 memcpy(&lun->mode_pages.control_ext_page[ 4298 CTL_PAGE_CURRENT], 4299 &lun->mode_pages.control_ext_page[ 4300 CTL_PAGE_SAVED], 4301 sizeof(control_ext_page_default)); 4302 page_index->page_data = 4303 (uint8_t *)lun->mode_pages.control_ext_page; 4304 break; 4305 default: 4306 panic("subpage %#x for page %#x is incorrect!", 4307 page_index->subpage, page_code); 4308 } 4309 break; 4310 } 4311 case SMS_INFO_EXCEPTIONS_PAGE: { 4312 switch (page_index->subpage) { 4313 case SMS_SUBPAGE_PAGE_0: 4314 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_CURRENT], 4315 &ie_page_default, 4316 sizeof(ie_page_default)); 4317 memcpy(&lun->mode_pages.ie_page[ 4318 CTL_PAGE_CHANGEABLE], &ie_page_changeable, 4319 sizeof(ie_page_changeable)); 4320 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_DEFAULT], 4321 &ie_page_default, 4322 sizeof(ie_page_default)); 4323 memcpy(&lun->mode_pages.ie_page[CTL_PAGE_SAVED], 4324 &ie_page_default, 4325 sizeof(ie_page_default)); 4326 page_index->page_data = 4327 (uint8_t *)lun->mode_pages.ie_page; 4328 break; 4329 case 0x02: { 4330 struct ctl_logical_block_provisioning_page *page; 4331 4332 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_DEFAULT], 4333 &lbp_page_default, 4334 sizeof(lbp_page_default)); 4335 memcpy(&lun->mode_pages.lbp_page[ 4336 CTL_PAGE_CHANGEABLE], &lbp_page_changeable, 4337 sizeof(lbp_page_changeable)); 4338 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4339 &lbp_page_default, 4340 sizeof(lbp_page_default)); 4341 page = &lun->mode_pages.lbp_page[CTL_PAGE_SAVED]; 4342 value = ctl_get_opt(&lun->be_lun->options, 4343 "avail-threshold"); 4344 if (value != NULL && 4345 ctl_expand_number(value, &ival) == 0) { 4346 page->descr[0].flags |= SLBPPD_ENABLED | 4347 SLBPPD_ARMING_DEC; 4348 if (lun->be_lun->blocksize) 4349 ival /= lun->be_lun->blocksize; 4350 else 4351 ival /= 512; 4352 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4353 page->descr[0].count); 4354 } 4355 value = ctl_get_opt(&lun->be_lun->options, 4356 "used-threshold"); 4357 if (value != NULL && 4358 ctl_expand_number(value, &ival) == 0) { 4359 page->descr[1].flags |= SLBPPD_ENABLED | 4360 SLBPPD_ARMING_INC; 4361 if (lun->be_lun->blocksize) 4362 ival /= lun->be_lun->blocksize; 4363 else 4364 ival /= 512; 4365 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4366 page->descr[1].count); 4367 } 4368 value = ctl_get_opt(&lun->be_lun->options, 4369 "pool-avail-threshold"); 4370 if (value != NULL && 4371 ctl_expand_number(value, &ival) == 0) { 4372 page->descr[2].flags |= SLBPPD_ENABLED | 4373 SLBPPD_ARMING_DEC; 4374 if (lun->be_lun->blocksize) 4375 ival /= lun->be_lun->blocksize; 4376 else 4377 ival /= 512; 4378 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4379 page->descr[2].count); 4380 } 4381 value = ctl_get_opt(&lun->be_lun->options, 4382 "pool-used-threshold"); 4383 if (value != NULL && 4384 ctl_expand_number(value, &ival) == 0) { 4385 page->descr[3].flags |= SLBPPD_ENABLED | 4386 SLBPPD_ARMING_INC; 4387 if (lun->be_lun->blocksize) 4388 ival /= lun->be_lun->blocksize; 4389 else 4390 ival /= 512; 4391 scsi_ulto4b(ival >> CTL_LBP_EXPONENT, 4392 page->descr[3].count); 4393 } 4394 memcpy(&lun->mode_pages.lbp_page[CTL_PAGE_CURRENT], 4395 &lun->mode_pages.lbp_page[CTL_PAGE_SAVED], 4396 sizeof(lbp_page_default)); 4397 page_index->page_data = 4398 (uint8_t *)lun->mode_pages.lbp_page; 4399 break; 4400 } 4401 default: 4402 panic("subpage %#x for page %#x is incorrect!", 4403 page_index->subpage, page_code); 4404 } 4405 break; 4406 } 4407 case SMS_CDDVD_CAPS_PAGE:{ 4408 KASSERT(page_index->subpage == SMS_SUBPAGE_PAGE_0, 4409 ("subpage %#x for page %#x is incorrect!", 4410 page_index->subpage, page_code)); 4411 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_DEFAULT], 4412 &cddvd_page_default, 4413 sizeof(cddvd_page_default)); 4414 memcpy(&lun->mode_pages.cddvd_page[ 4415 CTL_PAGE_CHANGEABLE], &cddvd_page_changeable, 4416 sizeof(cddvd_page_changeable)); 4417 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4418 &cddvd_page_default, 4419 sizeof(cddvd_page_default)); 4420 memcpy(&lun->mode_pages.cddvd_page[CTL_PAGE_CURRENT], 4421 &lun->mode_pages.cddvd_page[CTL_PAGE_SAVED], 4422 sizeof(cddvd_page_default)); 4423 page_index->page_data = 4424 (uint8_t *)lun->mode_pages.cddvd_page; 4425 break; 4426 } 4427 default: 4428 panic("invalid page code value %#x", page_code); 4429 } 4430 } 4431 4432 return (CTL_RETVAL_COMPLETE); 4433} 4434 4435static int 4436ctl_init_log_page_index(struct ctl_lun *lun) 4437{ 4438 struct ctl_page_index *page_index; 4439 int i, j, k, prev; 4440 4441 memcpy(&lun->log_pages.index, log_page_index_template, 4442 sizeof(log_page_index_template)); 4443 4444 prev = -1; 4445 for (i = 0, j = 0, k = 0; i < CTL_NUM_LOG_PAGES; i++) { 4446 4447 page_index = &lun->log_pages.index[i]; 4448 if (lun->be_lun->lun_type == T_DIRECT && 4449 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 4450 continue; 4451 if (lun->be_lun->lun_type == T_PROCESSOR && 4452 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 4453 continue; 4454 if (lun->be_lun->lun_type == T_CDROM && 4455 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 4456 continue; 4457 4458 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING && 4459 lun->backend->lun_attr == NULL) 4460 continue; 4461 4462 if (page_index->page_code != prev) { 4463 lun->log_pages.pages_page[j] = page_index->page_code; 4464 prev = page_index->page_code; 4465 j++; 4466 } 4467 lun->log_pages.subpages_page[k*2] = page_index->page_code; 4468 lun->log_pages.subpages_page[k*2+1] = page_index->subpage; 4469 k++; 4470 } 4471 lun->log_pages.index[0].page_data = &lun->log_pages.pages_page[0]; 4472 lun->log_pages.index[0].page_len = j; 4473 lun->log_pages.index[1].page_data = &lun->log_pages.subpages_page[0]; 4474 lun->log_pages.index[1].page_len = k * 2; 4475 lun->log_pages.index[2].page_data = &lun->log_pages.lbp_page[0]; 4476 lun->log_pages.index[2].page_len = 12*CTL_NUM_LBP_PARAMS; 4477 lun->log_pages.index[3].page_data = (uint8_t *)&lun->log_pages.stat_page; 4478 lun->log_pages.index[3].page_len = sizeof(lun->log_pages.stat_page); 4479 lun->log_pages.index[4].page_data = (uint8_t *)&lun->log_pages.ie_page; 4480 lun->log_pages.index[4].page_len = sizeof(lun->log_pages.ie_page); 4481 4482 return (CTL_RETVAL_COMPLETE); 4483} 4484 4485static int 4486hex2bin(const char *str, uint8_t *buf, int buf_size) 4487{ 4488 int i; 4489 u_char c; 4490 4491 memset(buf, 0, buf_size); 4492 while (isspace(str[0])) 4493 str++; 4494 if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) 4495 str += 2; 4496 buf_size *= 2; 4497 for (i = 0; str[i] != 0 && i < buf_size; i++) { 4498 while (str[i] == '-') /* Skip dashes in UUIDs. */ 4499 str++; 4500 c = str[i]; 4501 if (isdigit(c)) 4502 c -= '0'; 4503 else if (isalpha(c)) 4504 c -= isupper(c) ? 'A' - 10 : 'a' - 10; 4505 else 4506 break; 4507 if (c >= 16) 4508 break; 4509 if ((i & 1) == 0) 4510 buf[i / 2] |= (c << 4); 4511 else 4512 buf[i / 2] |= c; 4513 } 4514 return ((i + 1) / 2); 4515} 4516 4517/* 4518 * LUN allocation. 4519 * 4520 * Requirements: 4521 * - caller allocates and zeros LUN storage, or passes in a NULL LUN if he 4522 * wants us to allocate the LUN and he can block. 4523 * - ctl_softc is always set 4524 * - be_lun is set if the LUN has a backend (needed for disk LUNs) 4525 * 4526 * Returns 0 for success, non-zero (errno) for failure. 4527 */ 4528static int 4529ctl_alloc_lun(struct ctl_softc *ctl_softc, struct ctl_lun *ctl_lun, 4530 struct ctl_be_lun *const be_lun) 4531{ 4532 struct ctl_lun *nlun, *lun; 4533 struct scsi_vpd_id_descriptor *desc; 4534 struct scsi_vpd_id_t10 *t10id; 4535 const char *eui, *naa, *scsiname, *uuid, *vendor, *value; 4536 int lun_number, lun_malloced; 4537 int devidlen, idlen1, idlen2 = 0, len; 4538 4539 if (be_lun == NULL) 4540 return (EINVAL); 4541 4542 /* 4543 * We currently only support Direct Access or Processor LUN types. 4544 */ 4545 switch (be_lun->lun_type) { 4546 case T_DIRECT: 4547 case T_PROCESSOR: 4548 case T_CDROM: 4549 break; 4550 case T_SEQUENTIAL: 4551 case T_CHANGER: 4552 default: 4553 be_lun->lun_config_status(be_lun->be_lun, 4554 CTL_LUN_CONFIG_FAILURE); 4555 break; 4556 } 4557 if (ctl_lun == NULL) { 4558 lun = malloc(sizeof(*lun), M_CTL, M_WAITOK); 4559 lun_malloced = 1; 4560 } else { 4561 lun_malloced = 0; 4562 lun = ctl_lun; 4563 } 4564 4565 memset(lun, 0, sizeof(*lun)); 4566 if (lun_malloced) 4567 lun->flags = CTL_LUN_MALLOCED; 4568 4569 lun->pending_sense = malloc(sizeof(struct scsi_sense_data *) * 4570 ctl_max_ports, M_DEVBUF, M_WAITOK | M_ZERO); 4571 lun->pending_ua = malloc(sizeof(ctl_ua_type *) * ctl_max_ports, 4572 M_DEVBUF, M_WAITOK | M_ZERO); 4573 lun->pr_keys = malloc(sizeof(uint64_t *) * ctl_max_ports, 4574 M_DEVBUF, M_WAITOK | M_ZERO); 4575 4576 /* Generate LUN ID. */ 4577 devidlen = max(CTL_DEVID_MIN_LEN, 4578 strnlen(be_lun->device_id, CTL_DEVID_LEN)); 4579 idlen1 = sizeof(*t10id) + devidlen; 4580 len = sizeof(struct scsi_vpd_id_descriptor) + idlen1; 4581 scsiname = ctl_get_opt(&be_lun->options, "scsiname"); 4582 if (scsiname != NULL) { 4583 idlen2 = roundup2(strlen(scsiname) + 1, 4); 4584 len += sizeof(struct scsi_vpd_id_descriptor) + idlen2; 4585 } 4586 eui = ctl_get_opt(&be_lun->options, "eui"); 4587 if (eui != NULL) { 4588 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4589 } 4590 naa = ctl_get_opt(&be_lun->options, "naa"); 4591 if (naa != NULL) { 4592 len += sizeof(struct scsi_vpd_id_descriptor) + 16; 4593 } 4594 uuid = ctl_get_opt(&be_lun->options, "uuid"); 4595 if (uuid != NULL) { 4596 len += sizeof(struct scsi_vpd_id_descriptor) + 18; 4597 } 4598 lun->lun_devid = malloc(sizeof(struct ctl_devid) + len, 4599 M_CTL, M_WAITOK | M_ZERO); 4600 desc = (struct scsi_vpd_id_descriptor *)lun->lun_devid->data; 4601 desc->proto_codeset = SVPD_ID_CODESET_ASCII; 4602 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | SVPD_ID_TYPE_T10; 4603 desc->length = idlen1; 4604 t10id = (struct scsi_vpd_id_t10 *)&desc->identifier[0]; 4605 memset(t10id->vendor, ' ', sizeof(t10id->vendor)); 4606 if ((vendor = ctl_get_opt(&be_lun->options, "vendor")) == NULL) { 4607 strncpy((char *)t10id->vendor, CTL_VENDOR, sizeof(t10id->vendor)); 4608 } else { 4609 strncpy(t10id->vendor, vendor, 4610 min(sizeof(t10id->vendor), strlen(vendor))); 4611 } 4612 strncpy((char *)t10id->vendor_spec_id, 4613 (char *)be_lun->device_id, devidlen); 4614 if (scsiname != NULL) { 4615 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4616 desc->length); 4617 desc->proto_codeset = SVPD_ID_CODESET_UTF8; 4618 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4619 SVPD_ID_TYPE_SCSI_NAME; 4620 desc->length = idlen2; 4621 strlcpy(desc->identifier, scsiname, idlen2); 4622 } 4623 if (eui != NULL) { 4624 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4625 desc->length); 4626 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4627 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4628 SVPD_ID_TYPE_EUI64; 4629 desc->length = hex2bin(eui, desc->identifier, 16); 4630 desc->length = desc->length > 12 ? 16 : 4631 (desc->length > 8 ? 12 : 8); 4632 len -= 16 - desc->length; 4633 } 4634 if (naa != NULL) { 4635 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4636 desc->length); 4637 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4638 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4639 SVPD_ID_TYPE_NAA; 4640 desc->length = hex2bin(naa, desc->identifier, 16); 4641 desc->length = desc->length > 8 ? 16 : 8; 4642 len -= 16 - desc->length; 4643 } 4644 if (uuid != NULL) { 4645 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 4646 desc->length); 4647 desc->proto_codeset = SVPD_ID_CODESET_BINARY; 4648 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_LUN | 4649 SVPD_ID_TYPE_UUID; 4650 desc->identifier[0] = 0x10; 4651 hex2bin(uuid, &desc->identifier[2], 16); 4652 desc->length = 18; 4653 } 4654 lun->lun_devid->len = len; 4655 4656 mtx_lock(&ctl_softc->ctl_lock); 4657 /* 4658 * See if the caller requested a particular LUN number. If so, see 4659 * if it is available. Otherwise, allocate the first available LUN. 4660 */ 4661 if (be_lun->flags & CTL_LUN_FLAG_ID_REQ) { 4662 if ((be_lun->req_lun_id > (ctl_max_luns - 1)) 4663 || (ctl_is_set(ctl_softc->ctl_lun_mask, be_lun->req_lun_id))) { 4664 mtx_unlock(&ctl_softc->ctl_lock); 4665 if (be_lun->req_lun_id > (ctl_max_luns - 1)) { 4666 printf("ctl: requested LUN ID %d is higher " 4667 "than ctl_max_luns - 1 (%d)\n", 4668 be_lun->req_lun_id, ctl_max_luns - 1); 4669 } else { 4670 /* 4671 * XXX KDM return an error, or just assign 4672 * another LUN ID in this case?? 4673 */ 4674 printf("ctl: requested LUN ID %d is already " 4675 "in use\n", be_lun->req_lun_id); 4676 } 4677fail: 4678 free(lun->lun_devid, M_CTL); 4679 if (lun->flags & CTL_LUN_MALLOCED) 4680 free(lun, M_CTL); 4681 be_lun->lun_config_status(be_lun->be_lun, 4682 CTL_LUN_CONFIG_FAILURE); 4683 return (ENOSPC); 4684 } 4685 lun_number = be_lun->req_lun_id; 4686 } else { 4687 lun_number = ctl_ffz(ctl_softc->ctl_lun_mask, 0, ctl_max_luns); 4688 if (lun_number == -1) { 4689 mtx_unlock(&ctl_softc->ctl_lock); 4690 printf("ctl: can't allocate LUN, out of LUNs\n"); 4691 goto fail; 4692 } 4693 } 4694 ctl_set_mask(ctl_softc->ctl_lun_mask, lun_number); 4695 mtx_unlock(&ctl_softc->ctl_lock); 4696 4697 mtx_init(&lun->lun_lock, "CTL LUN", NULL, MTX_DEF); 4698 lun->lun = lun_number; 4699 lun->be_lun = be_lun; 4700 /* 4701 * The processor LUN is always enabled. Disk LUNs come on line 4702 * disabled, and must be enabled by the backend. 4703 */ 4704 lun->flags |= CTL_LUN_DISABLED; 4705 lun->backend = be_lun->be; 4706 be_lun->ctl_lun = lun; 4707 be_lun->lun_id = lun_number; 4708 atomic_add_int(&be_lun->be->num_luns, 1); 4709 if (be_lun->flags & CTL_LUN_FLAG_EJECTED) 4710 lun->flags |= CTL_LUN_EJECTED; 4711 if (be_lun->flags & CTL_LUN_FLAG_NO_MEDIA) 4712 lun->flags |= CTL_LUN_NO_MEDIA; 4713 if (be_lun->flags & CTL_LUN_FLAG_STOPPED) 4714 lun->flags |= CTL_LUN_STOPPED; 4715 4716 if (be_lun->flags & CTL_LUN_FLAG_PRIMARY) 4717 lun->flags |= CTL_LUN_PRIMARY_SC; 4718 4719 value = ctl_get_opt(&be_lun->options, "removable"); 4720 if (value != NULL) { 4721 if (strcmp(value, "on") == 0) 4722 lun->flags |= CTL_LUN_REMOVABLE; 4723 } else if (be_lun->lun_type == T_CDROM) 4724 lun->flags |= CTL_LUN_REMOVABLE; 4725 4726 lun->ctl_softc = ctl_softc; 4727#ifdef CTL_TIME_IO 4728 lun->last_busy = getsbinuptime(); 4729#endif 4730 TAILQ_INIT(&lun->ooa_queue); 4731 TAILQ_INIT(&lun->blocked_queue); 4732 STAILQ_INIT(&lun->error_list); 4733 lun->ie_reported = 1; 4734 callout_init_mtx(&lun->ie_callout, &lun->lun_lock, 0); 4735 ctl_tpc_lun_init(lun); 4736 if (lun->flags & CTL_LUN_REMOVABLE) { 4737 lun->prevent = malloc((CTL_MAX_INITIATORS + 31) / 32 * 4, 4738 M_CTL, M_WAITOK); 4739 } 4740 4741 /* 4742 * Initialize the mode and log page index. 4743 */ 4744 ctl_init_page_index(lun); 4745 ctl_init_log_page_index(lun); 4746 4747 /* Setup statistics gathering */ 4748#ifdef CTL_LEGACY_STATS 4749 lun->legacy_stats.device_type = be_lun->lun_type; 4750 lun->legacy_stats.lun_number = lun_number; 4751 lun->legacy_stats.blocksize = be_lun->blocksize; 4752 if (be_lun->blocksize == 0) 4753 lun->legacy_stats.flags = CTL_LUN_STATS_NO_BLOCKSIZE; 4754 lun->legacy_stats.ports = malloc(sizeof(struct ctl_lun_io_port_stats) * 4755 ctl_max_ports, M_DEVBUF, M_WAITOK | M_ZERO); 4756 for (len = 0; len < ctl_max_ports; len++) 4757 lun->legacy_stats.ports[len].targ_port = len; 4758#endif /* CTL_LEGACY_STATS */ 4759 lun->stats.item = lun_number; 4760 4761 /* 4762 * Now, before we insert this lun on the lun list, set the lun 4763 * inventory changed UA for all other luns. 4764 */ 4765 mtx_lock(&ctl_softc->ctl_lock); 4766 STAILQ_FOREACH(nlun, &ctl_softc->lun_list, links) { 4767 mtx_lock(&nlun->lun_lock); 4768 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4769 mtx_unlock(&nlun->lun_lock); 4770 } 4771 STAILQ_INSERT_TAIL(&ctl_softc->lun_list, lun, links); 4772 ctl_softc->ctl_luns[lun_number] = lun; 4773 ctl_softc->num_luns++; 4774 mtx_unlock(&ctl_softc->ctl_lock); 4775 4776 lun->be_lun->lun_config_status(lun->be_lun->be_lun, CTL_LUN_CONFIG_OK); 4777 return (0); 4778} 4779 4780/* 4781 * Delete a LUN. 4782 * Assumptions: 4783 * - LUN has already been marked invalid and any pending I/O has been taken 4784 * care of. 4785 */ 4786static int 4787ctl_free_lun(struct ctl_lun *lun) 4788{ 4789 struct ctl_softc *softc = lun->ctl_softc; 4790 struct ctl_lun *nlun; 4791 int i; 4792 4793 KASSERT(TAILQ_EMPTY(&lun->ooa_queue), 4794 ("Freeing a LUN %p with outstanding I/O!\n", lun)); 4795 4796 mtx_lock(&softc->ctl_lock); 4797 STAILQ_REMOVE(&softc->lun_list, lun, ctl_lun, links); 4798 ctl_clear_mask(softc->ctl_lun_mask, lun->lun); 4799 softc->ctl_luns[lun->lun] = NULL; 4800 softc->num_luns--; 4801 STAILQ_FOREACH(nlun, &softc->lun_list, links) { 4802 mtx_lock(&nlun->lun_lock); 4803 ctl_est_ua_all(nlun, -1, CTL_UA_LUN_CHANGE); 4804 mtx_unlock(&nlun->lun_lock); 4805 } 4806 mtx_unlock(&softc->ctl_lock); 4807 4808 /* 4809 * Tell the backend to free resources, if this LUN has a backend. 4810 */ 4811 atomic_subtract_int(&lun->be_lun->be->num_luns, 1); 4812 lun->be_lun->lun_shutdown(lun->be_lun->be_lun); 4813 4814 lun->ie_reportcnt = UINT32_MAX; 4815 callout_drain(&lun->ie_callout); 4816 ctl_tpc_lun_shutdown(lun); 4817 mtx_destroy(&lun->lun_lock); 4818 free(lun->lun_devid, M_CTL); 4819 for (i = 0; i < ctl_max_ports; i++) 4820 free(lun->pending_ua[i], M_CTL); 4821 free(lun->pending_ua, M_DEVBUF); 4822 for (i = 0; i < ctl_max_ports; i++) 4823 free(lun->pr_keys[i], M_CTL); 4824 free(lun->pr_keys, M_DEVBUF); 4825 free(lun->write_buffer, M_CTL); 4826 free(lun->prevent, M_CTL); 4827 if (lun->flags & CTL_LUN_MALLOCED) 4828 free(lun, M_CTL); 4829 4830 return (0); 4831} 4832 4833static void 4834ctl_create_lun(struct ctl_be_lun *be_lun) 4835{ 4836 4837 /* 4838 * ctl_alloc_lun() should handle all potential failure cases. 4839 */ 4840 ctl_alloc_lun(control_softc, NULL, be_lun); 4841} 4842 4843int 4844ctl_add_lun(struct ctl_be_lun *be_lun) 4845{ 4846 struct ctl_softc *softc = control_softc; 4847 4848 mtx_lock(&softc->ctl_lock); 4849 STAILQ_INSERT_TAIL(&softc->pending_lun_queue, be_lun, links); 4850 mtx_unlock(&softc->ctl_lock); 4851 wakeup(&softc->pending_lun_queue); 4852 4853 return (0); 4854} 4855 4856int 4857ctl_enable_lun(struct ctl_be_lun *be_lun) 4858{ 4859 struct ctl_softc *softc; 4860 struct ctl_port *port, *nport; 4861 struct ctl_lun *lun; 4862 int retval; 4863 4864 lun = (struct ctl_lun *)be_lun->ctl_lun; 4865 softc = lun->ctl_softc; 4866 4867 mtx_lock(&softc->ctl_lock); 4868 mtx_lock(&lun->lun_lock); 4869 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 4870 /* 4871 * eh? Why did we get called if the LUN is already 4872 * enabled? 4873 */ 4874 mtx_unlock(&lun->lun_lock); 4875 mtx_unlock(&softc->ctl_lock); 4876 return (0); 4877 } 4878 lun->flags &= ~CTL_LUN_DISABLED; 4879 mtx_unlock(&lun->lun_lock); 4880 4881 STAILQ_FOREACH_SAFE(port, &softc->port_list, links, nport) { 4882 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4883 port->lun_map != NULL || port->lun_enable == NULL) 4884 continue; 4885 4886 /* 4887 * Drop the lock while we call the FETD's enable routine. 4888 * This can lead to a callback into CTL (at least in the 4889 * case of the internal initiator frontend. 4890 */ 4891 mtx_unlock(&softc->ctl_lock); 4892 retval = port->lun_enable(port->targ_lun_arg, lun->lun); 4893 mtx_lock(&softc->ctl_lock); 4894 if (retval != 0) { 4895 printf("%s: FETD %s port %d returned error " 4896 "%d for lun_enable on lun %jd\n", 4897 __func__, port->port_name, port->targ_port, 4898 retval, (intmax_t)lun->lun); 4899 } 4900 } 4901 4902 mtx_unlock(&softc->ctl_lock); 4903 ctl_isc_announce_lun(lun); 4904 4905 return (0); 4906} 4907 4908int 4909ctl_disable_lun(struct ctl_be_lun *be_lun) 4910{ 4911 struct ctl_softc *softc; 4912 struct ctl_port *port; 4913 struct ctl_lun *lun; 4914 int retval; 4915 4916 lun = (struct ctl_lun *)be_lun->ctl_lun; 4917 softc = lun->ctl_softc; 4918 4919 mtx_lock(&softc->ctl_lock); 4920 mtx_lock(&lun->lun_lock); 4921 if (lun->flags & CTL_LUN_DISABLED) { 4922 mtx_unlock(&lun->lun_lock); 4923 mtx_unlock(&softc->ctl_lock); 4924 return (0); 4925 } 4926 lun->flags |= CTL_LUN_DISABLED; 4927 mtx_unlock(&lun->lun_lock); 4928 4929 STAILQ_FOREACH(port, &softc->port_list, links) { 4930 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0 || 4931 port->lun_map != NULL || port->lun_disable == NULL) 4932 continue; 4933 4934 /* 4935 * Drop the lock before we call the frontend's disable 4936 * routine, to avoid lock order reversals. 4937 * 4938 * XXX KDM what happens if the frontend list changes while 4939 * we're traversing it? It's unlikely, but should be handled. 4940 */ 4941 mtx_unlock(&softc->ctl_lock); 4942 retval = port->lun_disable(port->targ_lun_arg, lun->lun); 4943 mtx_lock(&softc->ctl_lock); 4944 if (retval != 0) { 4945 printf("%s: FETD %s port %d returned error " 4946 "%d for lun_disable on lun %jd\n", 4947 __func__, port->port_name, port->targ_port, 4948 retval, (intmax_t)lun->lun); 4949 } 4950 } 4951 4952 mtx_unlock(&softc->ctl_lock); 4953 ctl_isc_announce_lun(lun); 4954 4955 return (0); 4956} 4957 4958int 4959ctl_start_lun(struct ctl_be_lun *be_lun) 4960{ 4961 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4962 4963 mtx_lock(&lun->lun_lock); 4964 lun->flags &= ~CTL_LUN_STOPPED; 4965 mtx_unlock(&lun->lun_lock); 4966 return (0); 4967} 4968 4969int 4970ctl_stop_lun(struct ctl_be_lun *be_lun) 4971{ 4972 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4973 4974 mtx_lock(&lun->lun_lock); 4975 lun->flags |= CTL_LUN_STOPPED; 4976 mtx_unlock(&lun->lun_lock); 4977 return (0); 4978} 4979 4980int 4981ctl_lun_no_media(struct ctl_be_lun *be_lun) 4982{ 4983 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4984 4985 mtx_lock(&lun->lun_lock); 4986 lun->flags |= CTL_LUN_NO_MEDIA; 4987 mtx_unlock(&lun->lun_lock); 4988 return (0); 4989} 4990 4991int 4992ctl_lun_has_media(struct ctl_be_lun *be_lun) 4993{ 4994 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 4995 union ctl_ha_msg msg; 4996 4997 mtx_lock(&lun->lun_lock); 4998 lun->flags &= ~(CTL_LUN_NO_MEDIA | CTL_LUN_EJECTED); 4999 if (lun->flags & CTL_LUN_REMOVABLE) 5000 ctl_est_ua_all(lun, -1, CTL_UA_MEDIUM_CHANGE); 5001 mtx_unlock(&lun->lun_lock); 5002 if ((lun->flags & CTL_LUN_REMOVABLE) && 5003 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 5004 bzero(&msg.ua, sizeof(msg.ua)); 5005 msg.hdr.msg_type = CTL_MSG_UA; 5006 msg.hdr.nexus.initid = -1; 5007 msg.hdr.nexus.targ_port = -1; 5008 msg.hdr.nexus.targ_lun = lun->lun; 5009 msg.hdr.nexus.targ_mapped_lun = lun->lun; 5010 msg.ua.ua_all = 1; 5011 msg.ua.ua_set = 1; 5012 msg.ua.ua_type = CTL_UA_MEDIUM_CHANGE; 5013 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 5014 M_WAITOK); 5015 } 5016 return (0); 5017} 5018 5019int 5020ctl_lun_ejected(struct ctl_be_lun *be_lun) 5021{ 5022 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 5023 5024 mtx_lock(&lun->lun_lock); 5025 lun->flags |= CTL_LUN_EJECTED; 5026 mtx_unlock(&lun->lun_lock); 5027 return (0); 5028} 5029 5030int 5031ctl_lun_primary(struct ctl_be_lun *be_lun) 5032{ 5033 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 5034 5035 mtx_lock(&lun->lun_lock); 5036 lun->flags |= CTL_LUN_PRIMARY_SC; 5037 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 5038 mtx_unlock(&lun->lun_lock); 5039 ctl_isc_announce_lun(lun); 5040 return (0); 5041} 5042 5043int 5044ctl_lun_secondary(struct ctl_be_lun *be_lun) 5045{ 5046 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 5047 5048 mtx_lock(&lun->lun_lock); 5049 lun->flags &= ~CTL_LUN_PRIMARY_SC; 5050 ctl_est_ua_all(lun, -1, CTL_UA_ASYM_ACC_CHANGE); 5051 mtx_unlock(&lun->lun_lock); 5052 ctl_isc_announce_lun(lun); 5053 return (0); 5054} 5055 5056int 5057ctl_invalidate_lun(struct ctl_be_lun *be_lun) 5058{ 5059 struct ctl_softc *softc; 5060 struct ctl_lun *lun; 5061 5062 lun = (struct ctl_lun *)be_lun->ctl_lun; 5063 softc = lun->ctl_softc; 5064 5065 mtx_lock(&lun->lun_lock); 5066 5067 /* 5068 * The LUN needs to be disabled before it can be marked invalid. 5069 */ 5070 if ((lun->flags & CTL_LUN_DISABLED) == 0) { 5071 mtx_unlock(&lun->lun_lock); 5072 return (-1); 5073 } 5074 /* 5075 * Mark the LUN invalid. 5076 */ 5077 lun->flags |= CTL_LUN_INVALID; 5078 5079 /* 5080 * If there is nothing in the OOA queue, go ahead and free the LUN. 5081 * If we have something in the OOA queue, we'll free it when the 5082 * last I/O completes. 5083 */ 5084 if (TAILQ_EMPTY(&lun->ooa_queue)) { 5085 mtx_unlock(&lun->lun_lock); 5086 ctl_free_lun(lun); 5087 } else 5088 mtx_unlock(&lun->lun_lock); 5089 5090 return (0); 5091} 5092 5093void 5094ctl_lun_capacity_changed(struct ctl_be_lun *be_lun) 5095{ 5096 struct ctl_lun *lun = (struct ctl_lun *)be_lun->ctl_lun; 5097 union ctl_ha_msg msg; 5098 5099 mtx_lock(&lun->lun_lock); 5100 ctl_est_ua_all(lun, -1, CTL_UA_CAPACITY_CHANGE); 5101 mtx_unlock(&lun->lun_lock); 5102 if (lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 5103 /* Send msg to other side. */ 5104 bzero(&msg.ua, sizeof(msg.ua)); 5105 msg.hdr.msg_type = CTL_MSG_UA; 5106 msg.hdr.nexus.initid = -1; 5107 msg.hdr.nexus.targ_port = -1; 5108 msg.hdr.nexus.targ_lun = lun->lun; 5109 msg.hdr.nexus.targ_mapped_lun = lun->lun; 5110 msg.ua.ua_all = 1; 5111 msg.ua.ua_set = 1; 5112 msg.ua.ua_type = CTL_UA_CAPACITY_CHANGE; 5113 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, sizeof(msg.ua), 5114 M_WAITOK); 5115 } 5116} 5117 5118/* 5119 * Backend "memory move is complete" callback for requests that never 5120 * make it down to say RAIDCore's configuration code. 5121 */ 5122int 5123ctl_config_move_done(union ctl_io *io) 5124{ 5125 int retval; 5126 5127 CTL_DEBUG_PRINT(("ctl_config_move_done\n")); 5128 KASSERT(io->io_hdr.io_type == CTL_IO_SCSI, 5129 ("Config I/O type isn't CTL_IO_SCSI (%d)!", io->io_hdr.io_type)); 5130 5131 if ((io->io_hdr.port_status != 0) && 5132 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5133 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5134 ctl_set_internal_failure(&io->scsiio, /*sks_valid*/ 1, 5135 /*retry_count*/ io->io_hdr.port_status); 5136 } else if (io->scsiio.kern_data_resid != 0 && 5137 (io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT && 5138 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5139 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5140 ctl_set_invalid_field_ciu(&io->scsiio); 5141 } 5142 5143 if (ctl_debug & CTL_DEBUG_CDB_DATA) 5144 ctl_data_print(io); 5145 if (((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) || 5146 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5147 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) || 5148 ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0)) { 5149 /* 5150 * XXX KDM just assuming a single pointer here, and not a 5151 * S/G list. If we start using S/G lists for config data, 5152 * we'll need to know how to clean them up here as well. 5153 */ 5154 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5155 free(io->scsiio.kern_data_ptr, M_CTL); 5156 ctl_done(io); 5157 retval = CTL_RETVAL_COMPLETE; 5158 } else { 5159 /* 5160 * XXX KDM now we need to continue data movement. Some 5161 * options: 5162 * - call ctl_scsiio() again? We don't do this for data 5163 * writes, because for those at least we know ahead of 5164 * time where the write will go and how long it is. For 5165 * config writes, though, that information is largely 5166 * contained within the write itself, thus we need to 5167 * parse out the data again. 5168 * 5169 * - Call some other function once the data is in? 5170 */ 5171 5172 /* 5173 * XXX KDM call ctl_scsiio() again for now, and check flag 5174 * bits to see whether we're allocated or not. 5175 */ 5176 retval = ctl_scsiio(&io->scsiio); 5177 } 5178 return (retval); 5179} 5180 5181/* 5182 * This gets called by a backend driver when it is done with a 5183 * data_submit method. 5184 */ 5185void 5186ctl_data_submit_done(union ctl_io *io) 5187{ 5188 /* 5189 * If the IO_CONT flag is set, we need to call the supplied 5190 * function to continue processing the I/O, instead of completing 5191 * the I/O just yet. 5192 * 5193 * If there is an error, though, we don't want to keep processing. 5194 * Instead, just send status back to the initiator. 5195 */ 5196 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5197 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5198 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5199 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5200 io->scsiio.io_cont(io); 5201 return; 5202 } 5203 ctl_done(io); 5204} 5205 5206/* 5207 * This gets called by a backend driver when it is done with a 5208 * configuration write. 5209 */ 5210void 5211ctl_config_write_done(union ctl_io *io) 5212{ 5213 uint8_t *buf; 5214 5215 /* 5216 * If the IO_CONT flag is set, we need to call the supplied 5217 * function to continue processing the I/O, instead of completing 5218 * the I/O just yet. 5219 * 5220 * If there is an error, though, we don't want to keep processing. 5221 * Instead, just send status back to the initiator. 5222 */ 5223 if ((io->io_hdr.flags & CTL_FLAG_IO_CONT) && 5224 (io->io_hdr.flags & CTL_FLAG_ABORT) == 0 && 5225 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_STATUS_NONE || 5226 (io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS)) { 5227 io->scsiio.io_cont(io); 5228 return; 5229 } 5230 /* 5231 * Since a configuration write can be done for commands that actually 5232 * have data allocated, like write buffer, and commands that have 5233 * no data, like start/stop unit, we need to check here. 5234 */ 5235 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5236 buf = io->scsiio.kern_data_ptr; 5237 else 5238 buf = NULL; 5239 ctl_done(io); 5240 if (buf) 5241 free(buf, M_CTL); 5242} 5243 5244void 5245ctl_config_read_done(union ctl_io *io) 5246{ 5247 uint8_t *buf; 5248 5249 /* 5250 * If there is some error -- we are done, skip data transfer. 5251 */ 5252 if ((io->io_hdr.flags & CTL_FLAG_ABORT) != 0 || 5253 ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 5254 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) { 5255 if (io->io_hdr.flags & CTL_FLAG_ALLOCATED) 5256 buf = io->scsiio.kern_data_ptr; 5257 else 5258 buf = NULL; 5259 ctl_done(io); 5260 if (buf) 5261 free(buf, M_CTL); 5262 return; 5263 } 5264 5265 /* 5266 * If the IO_CONT flag is set, we need to call the supplied 5267 * function to continue processing the I/O, instead of completing 5268 * the I/O just yet. 5269 */ 5270 if (io->io_hdr.flags & CTL_FLAG_IO_CONT) { 5271 io->scsiio.io_cont(io); 5272 return; 5273 } 5274 5275 ctl_datamove(io); 5276} 5277 5278/* 5279 * SCSI release command. 5280 */ 5281int 5282ctl_scsi_release(struct ctl_scsiio *ctsio) 5283{ 5284 struct ctl_lun *lun = CTL_LUN(ctsio); 5285 uint32_t residx; 5286 5287 CTL_DEBUG_PRINT(("ctl_scsi_release\n")); 5288 5289 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5290 5291 /* 5292 * XXX KDM right now, we only support LUN reservation. We don't 5293 * support 3rd party reservations, or extent reservations, which 5294 * might actually need the parameter list. If we've gotten this 5295 * far, we've got a LUN reservation. Anything else got kicked out 5296 * above. So, according to SPC, ignore the length. 5297 */ 5298 5299 mtx_lock(&lun->lun_lock); 5300 5301 /* 5302 * According to SPC, it is not an error for an intiator to attempt 5303 * to release a reservation on a LUN that isn't reserved, or that 5304 * is reserved by another initiator. The reservation can only be 5305 * released, though, by the initiator who made it or by one of 5306 * several reset type events. 5307 */ 5308 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == residx)) 5309 lun->flags &= ~CTL_LUN_RESERVED; 5310 5311 mtx_unlock(&lun->lun_lock); 5312 5313 ctl_set_success(ctsio); 5314 ctl_done((union ctl_io *)ctsio); 5315 return (CTL_RETVAL_COMPLETE); 5316} 5317 5318int 5319ctl_scsi_reserve(struct ctl_scsiio *ctsio) 5320{ 5321 struct ctl_lun *lun = CTL_LUN(ctsio); 5322 uint32_t residx; 5323 5324 CTL_DEBUG_PRINT(("ctl_reserve\n")); 5325 5326 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5327 5328 /* 5329 * XXX KDM right now, we only support LUN reservation. We don't 5330 * support 3rd party reservations, or extent reservations, which 5331 * might actually need the parameter list. If we've gotten this 5332 * far, we've got a LUN reservation. Anything else got kicked out 5333 * above. So, according to SPC, ignore the length. 5334 */ 5335 5336 mtx_lock(&lun->lun_lock); 5337 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx != residx)) { 5338 ctl_set_reservation_conflict(ctsio); 5339 goto bailout; 5340 } 5341 5342 /* SPC-3 exceptions to SPC-2 RESERVE and RELEASE behavior. */ 5343 if (lun->flags & CTL_LUN_PR_RESERVED) { 5344 ctl_set_success(ctsio); 5345 goto bailout; 5346 } 5347 5348 lun->flags |= CTL_LUN_RESERVED; 5349 lun->res_idx = residx; 5350 ctl_set_success(ctsio); 5351 5352bailout: 5353 mtx_unlock(&lun->lun_lock); 5354 ctl_done((union ctl_io *)ctsio); 5355 return (CTL_RETVAL_COMPLETE); 5356} 5357 5358int 5359ctl_start_stop(struct ctl_scsiio *ctsio) 5360{ 5361 struct ctl_lun *lun = CTL_LUN(ctsio); 5362 struct scsi_start_stop_unit *cdb; 5363 int retval; 5364 5365 CTL_DEBUG_PRINT(("ctl_start_stop\n")); 5366 5367 cdb = (struct scsi_start_stop_unit *)ctsio->cdb; 5368 5369 if ((cdb->how & SSS_PC_MASK) == 0) { 5370 if ((lun->flags & CTL_LUN_PR_RESERVED) && 5371 (cdb->how & SSS_START) == 0) { 5372 uint32_t residx; 5373 5374 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5375 if (ctl_get_prkey(lun, residx) == 0 || 5376 (lun->pr_res_idx != residx && lun->pr_res_type < 4)) { 5377 5378 ctl_set_reservation_conflict(ctsio); 5379 ctl_done((union ctl_io *)ctsio); 5380 return (CTL_RETVAL_COMPLETE); 5381 } 5382 } 5383 5384 if ((cdb->how & SSS_LOEJ) && 5385 (lun->flags & CTL_LUN_REMOVABLE) == 0) { 5386 ctl_set_invalid_field(ctsio, 5387 /*sks_valid*/ 1, 5388 /*command*/ 1, 5389 /*field*/ 4, 5390 /*bit_valid*/ 1, 5391 /*bit*/ 1); 5392 ctl_done((union ctl_io *)ctsio); 5393 return (CTL_RETVAL_COMPLETE); 5394 } 5395 5396 if ((cdb->how & SSS_START) == 0 && (cdb->how & SSS_LOEJ) && 5397 lun->prevent_count > 0) { 5398 /* "Medium removal prevented" */ 5399 ctl_set_sense(ctsio, /*current_error*/ 1, 5400 /*sense_key*/(lun->flags & CTL_LUN_NO_MEDIA) ? 5401 SSD_KEY_NOT_READY : SSD_KEY_ILLEGAL_REQUEST, 5402 /*asc*/ 0x53, /*ascq*/ 0x02, SSD_ELEM_NONE); 5403 ctl_done((union ctl_io *)ctsio); 5404 return (CTL_RETVAL_COMPLETE); 5405 } 5406 } 5407 5408 retval = lun->backend->config_write((union ctl_io *)ctsio); 5409 return (retval); 5410} 5411 5412int 5413ctl_prevent_allow(struct ctl_scsiio *ctsio) 5414{ 5415 struct ctl_lun *lun = CTL_LUN(ctsio); 5416 struct scsi_prevent *cdb; 5417 int retval; 5418 uint32_t initidx; 5419 5420 CTL_DEBUG_PRINT(("ctl_prevent_allow\n")); 5421 5422 cdb = (struct scsi_prevent *)ctsio->cdb; 5423 5424 if ((lun->flags & CTL_LUN_REMOVABLE) == 0 || lun->prevent == NULL) { 5425 ctl_set_invalid_opcode(ctsio); 5426 ctl_done((union ctl_io *)ctsio); 5427 return (CTL_RETVAL_COMPLETE); 5428 } 5429 5430 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5431 mtx_lock(&lun->lun_lock); 5432 if ((cdb->how & PR_PREVENT) && 5433 ctl_is_set(lun->prevent, initidx) == 0) { 5434 ctl_set_mask(lun->prevent, initidx); 5435 lun->prevent_count++; 5436 } else if ((cdb->how & PR_PREVENT) == 0 && 5437 ctl_is_set(lun->prevent, initidx)) { 5438 ctl_clear_mask(lun->prevent, initidx); 5439 lun->prevent_count--; 5440 } 5441 mtx_unlock(&lun->lun_lock); 5442 retval = lun->backend->config_write((union ctl_io *)ctsio); 5443 return (retval); 5444} 5445 5446/* 5447 * We support the SYNCHRONIZE CACHE command (10 and 16 byte versions), but 5448 * we don't really do anything with the LBA and length fields if the user 5449 * passes them in. Instead we'll just flush out the cache for the entire 5450 * LUN. 5451 */ 5452int 5453ctl_sync_cache(struct ctl_scsiio *ctsio) 5454{ 5455 struct ctl_lun *lun = CTL_LUN(ctsio); 5456 struct ctl_lba_len_flags *lbalen; 5457 uint64_t starting_lba; 5458 uint32_t block_count; 5459 int retval; 5460 uint8_t byte2; 5461 5462 CTL_DEBUG_PRINT(("ctl_sync_cache\n")); 5463 5464 retval = 0; 5465 5466 switch (ctsio->cdb[0]) { 5467 case SYNCHRONIZE_CACHE: { 5468 struct scsi_sync_cache *cdb; 5469 cdb = (struct scsi_sync_cache *)ctsio->cdb; 5470 5471 starting_lba = scsi_4btoul(cdb->begin_lba); 5472 block_count = scsi_2btoul(cdb->lb_count); 5473 byte2 = cdb->byte2; 5474 break; 5475 } 5476 case SYNCHRONIZE_CACHE_16: { 5477 struct scsi_sync_cache_16 *cdb; 5478 cdb = (struct scsi_sync_cache_16 *)ctsio->cdb; 5479 5480 starting_lba = scsi_8btou64(cdb->begin_lba); 5481 block_count = scsi_4btoul(cdb->lb_count); 5482 byte2 = cdb->byte2; 5483 break; 5484 } 5485 default: 5486 ctl_set_invalid_opcode(ctsio); 5487 ctl_done((union ctl_io *)ctsio); 5488 goto bailout; 5489 break; /* NOTREACHED */ 5490 } 5491 5492 /* 5493 * We check the LBA and length, but don't do anything with them. 5494 * A SYNCHRONIZE CACHE will cause the entire cache for this lun to 5495 * get flushed. This check will just help satisfy anyone who wants 5496 * to see an error for an out of range LBA. 5497 */ 5498 if ((starting_lba + block_count) > (lun->be_lun->maxlba + 1)) { 5499 ctl_set_lba_out_of_range(ctsio, 5500 MAX(starting_lba, lun->be_lun->maxlba + 1)); 5501 ctl_done((union ctl_io *)ctsio); 5502 goto bailout; 5503 } 5504 5505 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5506 lbalen->lba = starting_lba; 5507 lbalen->len = block_count; 5508 lbalen->flags = byte2; 5509 retval = lun->backend->config_write((union ctl_io *)ctsio); 5510 5511bailout: 5512 return (retval); 5513} 5514 5515int 5516ctl_format(struct ctl_scsiio *ctsio) 5517{ 5518 struct scsi_format *cdb; 5519 int length, defect_list_len; 5520 5521 CTL_DEBUG_PRINT(("ctl_format\n")); 5522 5523 cdb = (struct scsi_format *)ctsio->cdb; 5524 5525 length = 0; 5526 if (cdb->byte2 & SF_FMTDATA) { 5527 if (cdb->byte2 & SF_LONGLIST) 5528 length = sizeof(struct scsi_format_header_long); 5529 else 5530 length = sizeof(struct scsi_format_header_short); 5531 } 5532 5533 if (((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) 5534 && (length > 0)) { 5535 ctsio->kern_data_ptr = malloc(length, M_CTL, M_WAITOK); 5536 ctsio->kern_data_len = length; 5537 ctsio->kern_total_len = length; 5538 ctsio->kern_rel_offset = 0; 5539 ctsio->kern_sg_entries = 0; 5540 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5541 ctsio->be_move_done = ctl_config_move_done; 5542 ctl_datamove((union ctl_io *)ctsio); 5543 5544 return (CTL_RETVAL_COMPLETE); 5545 } 5546 5547 defect_list_len = 0; 5548 5549 if (cdb->byte2 & SF_FMTDATA) { 5550 if (cdb->byte2 & SF_LONGLIST) { 5551 struct scsi_format_header_long *header; 5552 5553 header = (struct scsi_format_header_long *) 5554 ctsio->kern_data_ptr; 5555 5556 defect_list_len = scsi_4btoul(header->defect_list_len); 5557 if (defect_list_len != 0) { 5558 ctl_set_invalid_field(ctsio, 5559 /*sks_valid*/ 1, 5560 /*command*/ 0, 5561 /*field*/ 2, 5562 /*bit_valid*/ 0, 5563 /*bit*/ 0); 5564 goto bailout; 5565 } 5566 } else { 5567 struct scsi_format_header_short *header; 5568 5569 header = (struct scsi_format_header_short *) 5570 ctsio->kern_data_ptr; 5571 5572 defect_list_len = scsi_2btoul(header->defect_list_len); 5573 if (defect_list_len != 0) { 5574 ctl_set_invalid_field(ctsio, 5575 /*sks_valid*/ 1, 5576 /*command*/ 0, 5577 /*field*/ 2, 5578 /*bit_valid*/ 0, 5579 /*bit*/ 0); 5580 goto bailout; 5581 } 5582 } 5583 } 5584 5585 ctl_set_success(ctsio); 5586bailout: 5587 5588 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5589 free(ctsio->kern_data_ptr, M_CTL); 5590 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5591 } 5592 5593 ctl_done((union ctl_io *)ctsio); 5594 return (CTL_RETVAL_COMPLETE); 5595} 5596 5597int 5598ctl_read_buffer(struct ctl_scsiio *ctsio) 5599{ 5600 struct ctl_lun *lun = CTL_LUN(ctsio); 5601 uint64_t buffer_offset; 5602 uint32_t len; 5603 uint8_t byte2; 5604 static uint8_t descr[4]; 5605 static uint8_t echo_descr[4] = { 0 }; 5606 5607 CTL_DEBUG_PRINT(("ctl_read_buffer\n")); 5608 5609 switch (ctsio->cdb[0]) { 5610 case READ_BUFFER: { 5611 struct scsi_read_buffer *cdb; 5612 5613 cdb = (struct scsi_read_buffer *)ctsio->cdb; 5614 buffer_offset = scsi_3btoul(cdb->offset); 5615 len = scsi_3btoul(cdb->length); 5616 byte2 = cdb->byte2; 5617 break; 5618 } 5619 case READ_BUFFER_16: { 5620 struct scsi_read_buffer_16 *cdb; 5621 5622 cdb = (struct scsi_read_buffer_16 *)ctsio->cdb; 5623 buffer_offset = scsi_8btou64(cdb->offset); 5624 len = scsi_4btoul(cdb->length); 5625 byte2 = cdb->byte2; 5626 break; 5627 } 5628 default: /* This shouldn't happen. */ 5629 ctl_set_invalid_opcode(ctsio); 5630 ctl_done((union ctl_io *)ctsio); 5631 return (CTL_RETVAL_COMPLETE); 5632 } 5633 5634 if (buffer_offset > CTL_WRITE_BUFFER_SIZE || 5635 buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5636 ctl_set_invalid_field(ctsio, 5637 /*sks_valid*/ 1, 5638 /*command*/ 1, 5639 /*field*/ 6, 5640 /*bit_valid*/ 0, 5641 /*bit*/ 0); 5642 ctl_done((union ctl_io *)ctsio); 5643 return (CTL_RETVAL_COMPLETE); 5644 } 5645 5646 if ((byte2 & RWB_MODE) == RWB_MODE_DESCR) { 5647 descr[0] = 0; 5648 scsi_ulto3b(CTL_WRITE_BUFFER_SIZE, &descr[1]); 5649 ctsio->kern_data_ptr = descr; 5650 len = min(len, sizeof(descr)); 5651 } else if ((byte2 & RWB_MODE) == RWB_MODE_ECHO_DESCR) { 5652 ctsio->kern_data_ptr = echo_descr; 5653 len = min(len, sizeof(echo_descr)); 5654 } else { 5655 if (lun->write_buffer == NULL) { 5656 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5657 M_CTL, M_WAITOK); 5658 } 5659 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5660 } 5661 ctsio->kern_data_len = len; 5662 ctsio->kern_total_len = len; 5663 ctsio->kern_rel_offset = 0; 5664 ctsio->kern_sg_entries = 0; 5665 ctl_set_success(ctsio); 5666 ctsio->be_move_done = ctl_config_move_done; 5667 ctl_datamove((union ctl_io *)ctsio); 5668 return (CTL_RETVAL_COMPLETE); 5669} 5670 5671int 5672ctl_write_buffer(struct ctl_scsiio *ctsio) 5673{ 5674 struct ctl_lun *lun = CTL_LUN(ctsio); 5675 struct scsi_write_buffer *cdb; 5676 int buffer_offset, len; 5677 5678 CTL_DEBUG_PRINT(("ctl_write_buffer\n")); 5679 5680 cdb = (struct scsi_write_buffer *)ctsio->cdb; 5681 5682 len = scsi_3btoul(cdb->length); 5683 buffer_offset = scsi_3btoul(cdb->offset); 5684 5685 if (buffer_offset + len > CTL_WRITE_BUFFER_SIZE) { 5686 ctl_set_invalid_field(ctsio, 5687 /*sks_valid*/ 1, 5688 /*command*/ 1, 5689 /*field*/ 6, 5690 /*bit_valid*/ 0, 5691 /*bit*/ 0); 5692 ctl_done((union ctl_io *)ctsio); 5693 return (CTL_RETVAL_COMPLETE); 5694 } 5695 5696 /* 5697 * If we've got a kernel request that hasn't been malloced yet, 5698 * malloc it and tell the caller the data buffer is here. 5699 */ 5700 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5701 if (lun->write_buffer == NULL) { 5702 lun->write_buffer = malloc(CTL_WRITE_BUFFER_SIZE, 5703 M_CTL, M_WAITOK); 5704 } 5705 ctsio->kern_data_ptr = lun->write_buffer + buffer_offset; 5706 ctsio->kern_data_len = len; 5707 ctsio->kern_total_len = len; 5708 ctsio->kern_rel_offset = 0; 5709 ctsio->kern_sg_entries = 0; 5710 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5711 ctsio->be_move_done = ctl_config_move_done; 5712 ctl_datamove((union ctl_io *)ctsio); 5713 5714 return (CTL_RETVAL_COMPLETE); 5715 } 5716 5717 ctl_set_success(ctsio); 5718 ctl_done((union ctl_io *)ctsio); 5719 return (CTL_RETVAL_COMPLETE); 5720} 5721 5722int 5723ctl_write_same(struct ctl_scsiio *ctsio) 5724{ 5725 struct ctl_lun *lun = CTL_LUN(ctsio); 5726 struct ctl_lba_len_flags *lbalen; 5727 uint64_t lba; 5728 uint32_t num_blocks; 5729 int len, retval; 5730 uint8_t byte2; 5731 5732 CTL_DEBUG_PRINT(("ctl_write_same\n")); 5733 5734 switch (ctsio->cdb[0]) { 5735 case WRITE_SAME_10: { 5736 struct scsi_write_same_10 *cdb; 5737 5738 cdb = (struct scsi_write_same_10 *)ctsio->cdb; 5739 5740 lba = scsi_4btoul(cdb->addr); 5741 num_blocks = scsi_2btoul(cdb->length); 5742 byte2 = cdb->byte2; 5743 break; 5744 } 5745 case WRITE_SAME_16: { 5746 struct scsi_write_same_16 *cdb; 5747 5748 cdb = (struct scsi_write_same_16 *)ctsio->cdb; 5749 5750 lba = scsi_8btou64(cdb->addr); 5751 num_blocks = scsi_4btoul(cdb->length); 5752 byte2 = cdb->byte2; 5753 break; 5754 } 5755 default: 5756 /* 5757 * We got a command we don't support. This shouldn't 5758 * happen, commands should be filtered out above us. 5759 */ 5760 ctl_set_invalid_opcode(ctsio); 5761 ctl_done((union ctl_io *)ctsio); 5762 5763 return (CTL_RETVAL_COMPLETE); 5764 break; /* NOTREACHED */ 5765 } 5766 5767 /* ANCHOR flag can be used only together with UNMAP */ 5768 if ((byte2 & SWS_UNMAP) == 0 && (byte2 & SWS_ANCHOR) != 0) { 5769 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 5770 /*command*/ 1, /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 5771 ctl_done((union ctl_io *)ctsio); 5772 return (CTL_RETVAL_COMPLETE); 5773 } 5774 5775 /* 5776 * The first check is to make sure we're in bounds, the second 5777 * check is to catch wrap-around problems. If the lba + num blocks 5778 * is less than the lba, then we've wrapped around and the block 5779 * range is invalid anyway. 5780 */ 5781 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5782 || ((lba + num_blocks) < lba)) { 5783 ctl_set_lba_out_of_range(ctsio, 5784 MAX(lba, lun->be_lun->maxlba + 1)); 5785 ctl_done((union ctl_io *)ctsio); 5786 return (CTL_RETVAL_COMPLETE); 5787 } 5788 5789 /* Zero number of blocks means "to the last logical block" */ 5790 if (num_blocks == 0) { 5791 if ((lun->be_lun->maxlba + 1) - lba > UINT32_MAX) { 5792 ctl_set_invalid_field(ctsio, 5793 /*sks_valid*/ 0, 5794 /*command*/ 1, 5795 /*field*/ 0, 5796 /*bit_valid*/ 0, 5797 /*bit*/ 0); 5798 ctl_done((union ctl_io *)ctsio); 5799 return (CTL_RETVAL_COMPLETE); 5800 } 5801 num_blocks = (lun->be_lun->maxlba + 1) - lba; 5802 } 5803 5804 len = lun->be_lun->blocksize; 5805 5806 /* 5807 * If we've got a kernel request that hasn't been malloced yet, 5808 * malloc it and tell the caller the data buffer is here. 5809 */ 5810 if ((byte2 & SWS_NDOB) == 0 && 5811 (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5812 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK); 5813 ctsio->kern_data_len = len; 5814 ctsio->kern_total_len = len; 5815 ctsio->kern_rel_offset = 0; 5816 ctsio->kern_sg_entries = 0; 5817 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5818 ctsio->be_move_done = ctl_config_move_done; 5819 ctl_datamove((union ctl_io *)ctsio); 5820 5821 return (CTL_RETVAL_COMPLETE); 5822 } 5823 5824 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5825 lbalen->lba = lba; 5826 lbalen->len = num_blocks; 5827 lbalen->flags = byte2; 5828 retval = lun->backend->config_write((union ctl_io *)ctsio); 5829 5830 return (retval); 5831} 5832 5833int 5834ctl_unmap(struct ctl_scsiio *ctsio) 5835{ 5836 struct ctl_lun *lun = CTL_LUN(ctsio); 5837 struct scsi_unmap *cdb; 5838 struct ctl_ptr_len_flags *ptrlen; 5839 struct scsi_unmap_header *hdr; 5840 struct scsi_unmap_desc *buf, *end, *endnz, *range; 5841 uint64_t lba; 5842 uint32_t num_blocks; 5843 int len, retval; 5844 uint8_t byte2; 5845 5846 CTL_DEBUG_PRINT(("ctl_unmap\n")); 5847 5848 cdb = (struct scsi_unmap *)ctsio->cdb; 5849 len = scsi_2btoul(cdb->length); 5850 byte2 = cdb->byte2; 5851 5852 /* 5853 * If we've got a kernel request that hasn't been malloced yet, 5854 * malloc it and tell the caller the data buffer is here. 5855 */ 5856 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 5857 ctsio->kern_data_ptr = malloc(len, M_CTL, M_WAITOK); 5858 ctsio->kern_data_len = len; 5859 ctsio->kern_total_len = len; 5860 ctsio->kern_rel_offset = 0; 5861 ctsio->kern_sg_entries = 0; 5862 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 5863 ctsio->be_move_done = ctl_config_move_done; 5864 ctl_datamove((union ctl_io *)ctsio); 5865 5866 return (CTL_RETVAL_COMPLETE); 5867 } 5868 5869 len = ctsio->kern_total_len - ctsio->kern_data_resid; 5870 hdr = (struct scsi_unmap_header *)ctsio->kern_data_ptr; 5871 if (len < sizeof (*hdr) || 5872 len < (scsi_2btoul(hdr->length) + sizeof(hdr->length)) || 5873 len < (scsi_2btoul(hdr->desc_length) + sizeof (*hdr)) || 5874 scsi_2btoul(hdr->desc_length) % sizeof(*buf) != 0) { 5875 ctl_set_invalid_field(ctsio, 5876 /*sks_valid*/ 0, 5877 /*command*/ 0, 5878 /*field*/ 0, 5879 /*bit_valid*/ 0, 5880 /*bit*/ 0); 5881 goto done; 5882 } 5883 len = scsi_2btoul(hdr->desc_length); 5884 buf = (struct scsi_unmap_desc *)(hdr + 1); 5885 end = buf + len / sizeof(*buf); 5886 5887 endnz = buf; 5888 for (range = buf; range < end; range++) { 5889 lba = scsi_8btou64(range->lba); 5890 num_blocks = scsi_4btoul(range->length); 5891 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 5892 || ((lba + num_blocks) < lba)) { 5893 ctl_set_lba_out_of_range(ctsio, 5894 MAX(lba, lun->be_lun->maxlba + 1)); 5895 ctl_done((union ctl_io *)ctsio); 5896 return (CTL_RETVAL_COMPLETE); 5897 } 5898 if (num_blocks != 0) 5899 endnz = range + 1; 5900 } 5901 5902 /* 5903 * Block backend can not handle zero last range. 5904 * Filter it out and return if there is nothing left. 5905 */ 5906 len = (uint8_t *)endnz - (uint8_t *)buf; 5907 if (len == 0) { 5908 ctl_set_success(ctsio); 5909 goto done; 5910 } 5911 5912 mtx_lock(&lun->lun_lock); 5913 ptrlen = (struct ctl_ptr_len_flags *) 5914 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 5915 ptrlen->ptr = (void *)buf; 5916 ptrlen->len = len; 5917 ptrlen->flags = byte2; 5918 ctl_check_blocked(lun); 5919 mtx_unlock(&lun->lun_lock); 5920 5921 retval = lun->backend->config_write((union ctl_io *)ctsio); 5922 return (retval); 5923 5924done: 5925 if (ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) { 5926 free(ctsio->kern_data_ptr, M_CTL); 5927 ctsio->io_hdr.flags &= ~CTL_FLAG_ALLOCATED; 5928 } 5929 ctl_done((union ctl_io *)ctsio); 5930 return (CTL_RETVAL_COMPLETE); 5931} 5932 5933int 5934ctl_default_page_handler(struct ctl_scsiio *ctsio, 5935 struct ctl_page_index *page_index, uint8_t *page_ptr) 5936{ 5937 struct ctl_lun *lun = CTL_LUN(ctsio); 5938 uint8_t *current_cp; 5939 int set_ua; 5940 uint32_t initidx; 5941 5942 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 5943 set_ua = 0; 5944 5945 current_cp = (page_index->page_data + (page_index->page_len * 5946 CTL_PAGE_CURRENT)); 5947 5948 mtx_lock(&lun->lun_lock); 5949 if (memcmp(current_cp, page_ptr, page_index->page_len)) { 5950 memcpy(current_cp, page_ptr, page_index->page_len); 5951 set_ua = 1; 5952 } 5953 if (set_ua != 0) 5954 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 5955 mtx_unlock(&lun->lun_lock); 5956 if (set_ua) { 5957 ctl_isc_announce_mode(lun, 5958 ctl_get_initindex(&ctsio->io_hdr.nexus), 5959 page_index->page_code, page_index->subpage); 5960 } 5961 return (CTL_RETVAL_COMPLETE); 5962} 5963 5964static void 5965ctl_ie_timer(void *arg) 5966{ 5967 struct ctl_lun *lun = arg; 5968 uint64_t t; 5969 5970 if (lun->ie_asc == 0) 5971 return; 5972 5973 if (lun->MODE_IE.mrie == SIEP_MRIE_UA) 5974 ctl_est_ua_all(lun, -1, CTL_UA_IE); 5975 else 5976 lun->ie_reported = 0; 5977 5978 if (lun->ie_reportcnt < scsi_4btoul(lun->MODE_IE.report_count)) { 5979 lun->ie_reportcnt++; 5980 t = scsi_4btoul(lun->MODE_IE.interval_timer); 5981 if (t == 0 || t == UINT32_MAX) 5982 t = 3000; /* 5 min */ 5983 callout_schedule(&lun->ie_callout, t * hz / 10); 5984 } 5985} 5986 5987int 5988ctl_ie_page_handler(struct ctl_scsiio *ctsio, 5989 struct ctl_page_index *page_index, uint8_t *page_ptr) 5990{ 5991 struct ctl_lun *lun = CTL_LUN(ctsio); 5992 struct scsi_info_exceptions_page *pg; 5993 uint64_t t; 5994 5995 (void)ctl_default_page_handler(ctsio, page_index, page_ptr); 5996 5997 pg = (struct scsi_info_exceptions_page *)page_ptr; 5998 mtx_lock(&lun->lun_lock); 5999 if (pg->info_flags & SIEP_FLAGS_TEST) { 6000 lun->ie_asc = 0x5d; 6001 lun->ie_ascq = 0xff; 6002 if (pg->mrie == SIEP_MRIE_UA) { 6003 ctl_est_ua_all(lun, -1, CTL_UA_IE); 6004 lun->ie_reported = 1; 6005 } else { 6006 ctl_clr_ua_all(lun, -1, CTL_UA_IE); 6007 lun->ie_reported = -1; 6008 } 6009 lun->ie_reportcnt = 1; 6010 if (lun->ie_reportcnt < scsi_4btoul(pg->report_count)) { 6011 lun->ie_reportcnt++; 6012 t = scsi_4btoul(pg->interval_timer); 6013 if (t == 0 || t == UINT32_MAX) 6014 t = 3000; /* 5 min */ 6015 callout_reset(&lun->ie_callout, t * hz / 10, 6016 ctl_ie_timer, lun); 6017 } 6018 } else { 6019 lun->ie_asc = 0; 6020 lun->ie_ascq = 0; 6021 lun->ie_reported = 1; 6022 ctl_clr_ua_all(lun, -1, CTL_UA_IE); 6023 lun->ie_reportcnt = UINT32_MAX; 6024 callout_stop(&lun->ie_callout); 6025 } 6026 mtx_unlock(&lun->lun_lock); 6027 return (CTL_RETVAL_COMPLETE); 6028} 6029 6030static int 6031ctl_do_mode_select(union ctl_io *io) 6032{ 6033 struct ctl_lun *lun = CTL_LUN(io); 6034 struct scsi_mode_page_header *page_header; 6035 struct ctl_page_index *page_index; 6036 struct ctl_scsiio *ctsio; 6037 int page_len, page_len_offset, page_len_size; 6038 union ctl_modepage_info *modepage_info; 6039 uint16_t *len_left, *len_used; 6040 int retval, i; 6041 6042 ctsio = &io->scsiio; 6043 page_index = NULL; 6044 page_len = 0; 6045 6046 modepage_info = (union ctl_modepage_info *) 6047 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6048 len_left = &modepage_info->header.len_left; 6049 len_used = &modepage_info->header.len_used; 6050 6051do_next_page: 6052 6053 page_header = (struct scsi_mode_page_header *) 6054 (ctsio->kern_data_ptr + *len_used); 6055 6056 if (*len_left == 0) { 6057 free(ctsio->kern_data_ptr, M_CTL); 6058 ctl_set_success(ctsio); 6059 ctl_done((union ctl_io *)ctsio); 6060 return (CTL_RETVAL_COMPLETE); 6061 } else if (*len_left < sizeof(struct scsi_mode_page_header)) { 6062 6063 free(ctsio->kern_data_ptr, M_CTL); 6064 ctl_set_param_len_error(ctsio); 6065 ctl_done((union ctl_io *)ctsio); 6066 return (CTL_RETVAL_COMPLETE); 6067 6068 } else if ((page_header->page_code & SMPH_SPF) 6069 && (*len_left < sizeof(struct scsi_mode_page_header_sp))) { 6070 6071 free(ctsio->kern_data_ptr, M_CTL); 6072 ctl_set_param_len_error(ctsio); 6073 ctl_done((union ctl_io *)ctsio); 6074 return (CTL_RETVAL_COMPLETE); 6075 } 6076 6077 6078 /* 6079 * XXX KDM should we do something with the block descriptor? 6080 */ 6081 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6082 page_index = &lun->mode_pages.index[i]; 6083 if (lun->be_lun->lun_type == T_DIRECT && 6084 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6085 continue; 6086 if (lun->be_lun->lun_type == T_PROCESSOR && 6087 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6088 continue; 6089 if (lun->be_lun->lun_type == T_CDROM && 6090 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6091 continue; 6092 6093 if ((page_index->page_code & SMPH_PC_MASK) != 6094 (page_header->page_code & SMPH_PC_MASK)) 6095 continue; 6096 6097 /* 6098 * If neither page has a subpage code, then we've got a 6099 * match. 6100 */ 6101 if (((page_index->page_code & SMPH_SPF) == 0) 6102 && ((page_header->page_code & SMPH_SPF) == 0)) { 6103 page_len = page_header->page_length; 6104 break; 6105 } 6106 6107 /* 6108 * If both pages have subpages, then the subpage numbers 6109 * have to match. 6110 */ 6111 if ((page_index->page_code & SMPH_SPF) 6112 && (page_header->page_code & SMPH_SPF)) { 6113 struct scsi_mode_page_header_sp *sph; 6114 6115 sph = (struct scsi_mode_page_header_sp *)page_header; 6116 if (page_index->subpage == sph->subpage) { 6117 page_len = scsi_2btoul(sph->page_length); 6118 break; 6119 } 6120 } 6121 } 6122 6123 /* 6124 * If we couldn't find the page, or if we don't have a mode select 6125 * handler for it, send back an error to the user. 6126 */ 6127 if ((i >= CTL_NUM_MODE_PAGES) 6128 || (page_index->select_handler == NULL)) { 6129 ctl_set_invalid_field(ctsio, 6130 /*sks_valid*/ 1, 6131 /*command*/ 0, 6132 /*field*/ *len_used, 6133 /*bit_valid*/ 0, 6134 /*bit*/ 0); 6135 free(ctsio->kern_data_ptr, M_CTL); 6136 ctl_done((union ctl_io *)ctsio); 6137 return (CTL_RETVAL_COMPLETE); 6138 } 6139 6140 if (page_index->page_code & SMPH_SPF) { 6141 page_len_offset = 2; 6142 page_len_size = 2; 6143 } else { 6144 page_len_size = 1; 6145 page_len_offset = 1; 6146 } 6147 6148 /* 6149 * If the length the initiator gives us isn't the one we specify in 6150 * the mode page header, or if they didn't specify enough data in 6151 * the CDB to avoid truncating this page, kick out the request. 6152 */ 6153 if (page_len != page_index->page_len - page_len_offset - page_len_size) { 6154 ctl_set_invalid_field(ctsio, 6155 /*sks_valid*/ 1, 6156 /*command*/ 0, 6157 /*field*/ *len_used + page_len_offset, 6158 /*bit_valid*/ 0, 6159 /*bit*/ 0); 6160 free(ctsio->kern_data_ptr, M_CTL); 6161 ctl_done((union ctl_io *)ctsio); 6162 return (CTL_RETVAL_COMPLETE); 6163 } 6164 if (*len_left < page_index->page_len) { 6165 free(ctsio->kern_data_ptr, M_CTL); 6166 ctl_set_param_len_error(ctsio); 6167 ctl_done((union ctl_io *)ctsio); 6168 return (CTL_RETVAL_COMPLETE); 6169 } 6170 6171 /* 6172 * Run through the mode page, checking to make sure that the bits 6173 * the user changed are actually legal for him to change. 6174 */ 6175 for (i = 0; i < page_index->page_len; i++) { 6176 uint8_t *user_byte, *change_mask, *current_byte; 6177 int bad_bit; 6178 int j; 6179 6180 user_byte = (uint8_t *)page_header + i; 6181 change_mask = page_index->page_data + 6182 (page_index->page_len * CTL_PAGE_CHANGEABLE) + i; 6183 current_byte = page_index->page_data + 6184 (page_index->page_len * CTL_PAGE_CURRENT) + i; 6185 6186 /* 6187 * Check to see whether the user set any bits in this byte 6188 * that he is not allowed to set. 6189 */ 6190 if ((*user_byte & ~(*change_mask)) == 6191 (*current_byte & ~(*change_mask))) 6192 continue; 6193 6194 /* 6195 * Go through bit by bit to determine which one is illegal. 6196 */ 6197 bad_bit = 0; 6198 for (j = 7; j >= 0; j--) { 6199 if ((((1 << i) & ~(*change_mask)) & *user_byte) != 6200 (((1 << i) & ~(*change_mask)) & *current_byte)) { 6201 bad_bit = i; 6202 break; 6203 } 6204 } 6205 ctl_set_invalid_field(ctsio, 6206 /*sks_valid*/ 1, 6207 /*command*/ 0, 6208 /*field*/ *len_used + i, 6209 /*bit_valid*/ 1, 6210 /*bit*/ bad_bit); 6211 free(ctsio->kern_data_ptr, M_CTL); 6212 ctl_done((union ctl_io *)ctsio); 6213 return (CTL_RETVAL_COMPLETE); 6214 } 6215 6216 /* 6217 * Decrement these before we call the page handler, since we may 6218 * end up getting called back one way or another before the handler 6219 * returns to this context. 6220 */ 6221 *len_left -= page_index->page_len; 6222 *len_used += page_index->page_len; 6223 6224 retval = page_index->select_handler(ctsio, page_index, 6225 (uint8_t *)page_header); 6226 6227 /* 6228 * If the page handler returns CTL_RETVAL_QUEUED, then we need to 6229 * wait until this queued command completes to finish processing 6230 * the mode page. If it returns anything other than 6231 * CTL_RETVAL_COMPLETE (e.g. CTL_RETVAL_ERROR), then it should have 6232 * already set the sense information, freed the data pointer, and 6233 * completed the io for us. 6234 */ 6235 if (retval != CTL_RETVAL_COMPLETE) 6236 goto bailout_no_done; 6237 6238 /* 6239 * If the initiator sent us more than one page, parse the next one. 6240 */ 6241 if (*len_left > 0) 6242 goto do_next_page; 6243 6244 ctl_set_success(ctsio); 6245 free(ctsio->kern_data_ptr, M_CTL); 6246 ctl_done((union ctl_io *)ctsio); 6247 6248bailout_no_done: 6249 6250 return (CTL_RETVAL_COMPLETE); 6251 6252} 6253 6254int 6255ctl_mode_select(struct ctl_scsiio *ctsio) 6256{ 6257 struct ctl_lun *lun = CTL_LUN(ctsio); 6258 union ctl_modepage_info *modepage_info; 6259 int bd_len, i, header_size, param_len, pf, rtd, sp; 6260 uint32_t initidx; 6261 6262 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 6263 switch (ctsio->cdb[0]) { 6264 case MODE_SELECT_6: { 6265 struct scsi_mode_select_6 *cdb; 6266 6267 cdb = (struct scsi_mode_select_6 *)ctsio->cdb; 6268 6269 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6270 rtd = (cdb->byte2 & SMS_RTD) ? 1 : 0; 6271 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6272 param_len = cdb->length; 6273 header_size = sizeof(struct scsi_mode_header_6); 6274 break; 6275 } 6276 case MODE_SELECT_10: { 6277 struct scsi_mode_select_10 *cdb; 6278 6279 cdb = (struct scsi_mode_select_10 *)ctsio->cdb; 6280 6281 pf = (cdb->byte2 & SMS_PF) ? 1 : 0; 6282 rtd = (cdb->byte2 & SMS_RTD) ? 1 : 0; 6283 sp = (cdb->byte2 & SMS_SP) ? 1 : 0; 6284 param_len = scsi_2btoul(cdb->length); 6285 header_size = sizeof(struct scsi_mode_header_10); 6286 break; 6287 } 6288 default: 6289 ctl_set_invalid_opcode(ctsio); 6290 ctl_done((union ctl_io *)ctsio); 6291 return (CTL_RETVAL_COMPLETE); 6292 } 6293 6294 if (rtd) { 6295 if (param_len != 0) { 6296 ctl_set_invalid_field(ctsio, /*sks_valid*/ 0, 6297 /*command*/ 1, /*field*/ 0, 6298 /*bit_valid*/ 0, /*bit*/ 0); 6299 ctl_done((union ctl_io *)ctsio); 6300 return (CTL_RETVAL_COMPLETE); 6301 } 6302 6303 /* Revert to defaults. */ 6304 ctl_init_page_index(lun); 6305 mtx_lock(&lun->lun_lock); 6306 ctl_est_ua_all(lun, initidx, CTL_UA_MODE_CHANGE); 6307 mtx_unlock(&lun->lun_lock); 6308 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6309 ctl_isc_announce_mode(lun, -1, 6310 lun->mode_pages.index[i].page_code & SMPH_PC_MASK, 6311 lun->mode_pages.index[i].subpage); 6312 } 6313 ctl_set_success(ctsio); 6314 ctl_done((union ctl_io *)ctsio); 6315 return (CTL_RETVAL_COMPLETE); 6316 } 6317 6318 /* 6319 * From SPC-3: 6320 * "A parameter list length of zero indicates that the Data-Out Buffer 6321 * shall be empty. This condition shall not be considered as an error." 6322 */ 6323 if (param_len == 0) { 6324 ctl_set_success(ctsio); 6325 ctl_done((union ctl_io *)ctsio); 6326 return (CTL_RETVAL_COMPLETE); 6327 } 6328 6329 /* 6330 * Since we'll hit this the first time through, prior to 6331 * allocation, we don't need to free a data buffer here. 6332 */ 6333 if (param_len < header_size) { 6334 ctl_set_param_len_error(ctsio); 6335 ctl_done((union ctl_io *)ctsio); 6336 return (CTL_RETVAL_COMPLETE); 6337 } 6338 6339 /* 6340 * Allocate the data buffer and grab the user's data. In theory, 6341 * we shouldn't have to sanity check the parameter list length here 6342 * because the maximum size is 64K. We should be able to malloc 6343 * that much without too many problems. 6344 */ 6345 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 6346 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 6347 ctsio->kern_data_len = param_len; 6348 ctsio->kern_total_len = param_len; 6349 ctsio->kern_rel_offset = 0; 6350 ctsio->kern_sg_entries = 0; 6351 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6352 ctsio->be_move_done = ctl_config_move_done; 6353 ctl_datamove((union ctl_io *)ctsio); 6354 6355 return (CTL_RETVAL_COMPLETE); 6356 } 6357 6358 switch (ctsio->cdb[0]) { 6359 case MODE_SELECT_6: { 6360 struct scsi_mode_header_6 *mh6; 6361 6362 mh6 = (struct scsi_mode_header_6 *)ctsio->kern_data_ptr; 6363 bd_len = mh6->blk_desc_len; 6364 break; 6365 } 6366 case MODE_SELECT_10: { 6367 struct scsi_mode_header_10 *mh10; 6368 6369 mh10 = (struct scsi_mode_header_10 *)ctsio->kern_data_ptr; 6370 bd_len = scsi_2btoul(mh10->blk_desc_len); 6371 break; 6372 } 6373 default: 6374 panic("%s: Invalid CDB type %#x", __func__, ctsio->cdb[0]); 6375 } 6376 6377 if (param_len < (header_size + bd_len)) { 6378 free(ctsio->kern_data_ptr, M_CTL); 6379 ctl_set_param_len_error(ctsio); 6380 ctl_done((union ctl_io *)ctsio); 6381 return (CTL_RETVAL_COMPLETE); 6382 } 6383 6384 /* 6385 * Set the IO_CONT flag, so that if this I/O gets passed to 6386 * ctl_config_write_done(), it'll get passed back to 6387 * ctl_do_mode_select() for further processing, or completion if 6388 * we're all done. 6389 */ 6390 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 6391 ctsio->io_cont = ctl_do_mode_select; 6392 6393 modepage_info = (union ctl_modepage_info *) 6394 ctsio->io_hdr.ctl_private[CTL_PRIV_MODEPAGE].bytes; 6395 memset(modepage_info, 0, sizeof(*modepage_info)); 6396 modepage_info->header.len_left = param_len - header_size - bd_len; 6397 modepage_info->header.len_used = header_size + bd_len; 6398 6399 return (ctl_do_mode_select((union ctl_io *)ctsio)); 6400} 6401 6402int 6403ctl_mode_sense(struct ctl_scsiio *ctsio) 6404{ 6405 struct ctl_lun *lun = CTL_LUN(ctsio); 6406 int pc, page_code, dbd, llba, subpage; 6407 int alloc_len, page_len, header_len, total_len; 6408 struct scsi_mode_block_descr *block_desc; 6409 struct ctl_page_index *page_index; 6410 6411 dbd = 0; 6412 llba = 0; 6413 block_desc = NULL; 6414 6415 CTL_DEBUG_PRINT(("ctl_mode_sense\n")); 6416 6417 switch (ctsio->cdb[0]) { 6418 case MODE_SENSE_6: { 6419 struct scsi_mode_sense_6 *cdb; 6420 6421 cdb = (struct scsi_mode_sense_6 *)ctsio->cdb; 6422 6423 header_len = sizeof(struct scsi_mode_hdr_6); 6424 if (cdb->byte2 & SMS_DBD) 6425 dbd = 1; 6426 else 6427 header_len += sizeof(struct scsi_mode_block_descr); 6428 6429 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6430 page_code = cdb->page & SMS_PAGE_CODE; 6431 subpage = cdb->subpage; 6432 alloc_len = cdb->length; 6433 break; 6434 } 6435 case MODE_SENSE_10: { 6436 struct scsi_mode_sense_10 *cdb; 6437 6438 cdb = (struct scsi_mode_sense_10 *)ctsio->cdb; 6439 6440 header_len = sizeof(struct scsi_mode_hdr_10); 6441 6442 if (cdb->byte2 & SMS_DBD) 6443 dbd = 1; 6444 else 6445 header_len += sizeof(struct scsi_mode_block_descr); 6446 if (cdb->byte2 & SMS10_LLBAA) 6447 llba = 1; 6448 pc = (cdb->page & SMS_PAGE_CTRL_MASK) >> 6; 6449 page_code = cdb->page & SMS_PAGE_CODE; 6450 subpage = cdb->subpage; 6451 alloc_len = scsi_2btoul(cdb->length); 6452 break; 6453 } 6454 default: 6455 ctl_set_invalid_opcode(ctsio); 6456 ctl_done((union ctl_io *)ctsio); 6457 return (CTL_RETVAL_COMPLETE); 6458 break; /* NOTREACHED */ 6459 } 6460 6461 /* 6462 * We have to make a first pass through to calculate the size of 6463 * the pages that match the user's query. Then we allocate enough 6464 * memory to hold it, and actually copy the data into the buffer. 6465 */ 6466 switch (page_code) { 6467 case SMS_ALL_PAGES_PAGE: { 6468 u_int i; 6469 6470 page_len = 0; 6471 6472 /* 6473 * At the moment, values other than 0 and 0xff here are 6474 * reserved according to SPC-3. 6475 */ 6476 if ((subpage != SMS_SUBPAGE_PAGE_0) 6477 && (subpage != SMS_SUBPAGE_ALL)) { 6478 ctl_set_invalid_field(ctsio, 6479 /*sks_valid*/ 1, 6480 /*command*/ 1, 6481 /*field*/ 3, 6482 /*bit_valid*/ 0, 6483 /*bit*/ 0); 6484 ctl_done((union ctl_io *)ctsio); 6485 return (CTL_RETVAL_COMPLETE); 6486 } 6487 6488 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6489 page_index = &lun->mode_pages.index[i]; 6490 6491 /* Make sure the page is supported for this dev type */ 6492 if (lun->be_lun->lun_type == T_DIRECT && 6493 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6494 continue; 6495 if (lun->be_lun->lun_type == T_PROCESSOR && 6496 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6497 continue; 6498 if (lun->be_lun->lun_type == T_CDROM && 6499 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6500 continue; 6501 6502 /* 6503 * We don't use this subpage if the user didn't 6504 * request all subpages. 6505 */ 6506 if ((page_index->subpage != 0) 6507 && (subpage == SMS_SUBPAGE_PAGE_0)) 6508 continue; 6509 6510#if 0 6511 printf("found page %#x len %d\n", 6512 page_index->page_code & SMPH_PC_MASK, 6513 page_index->page_len); 6514#endif 6515 page_len += page_index->page_len; 6516 } 6517 break; 6518 } 6519 default: { 6520 u_int i; 6521 6522 page_len = 0; 6523 6524 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6525 page_index = &lun->mode_pages.index[i]; 6526 6527 /* Make sure the page is supported for this dev type */ 6528 if (lun->be_lun->lun_type == T_DIRECT && 6529 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6530 continue; 6531 if (lun->be_lun->lun_type == T_PROCESSOR && 6532 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6533 continue; 6534 if (lun->be_lun->lun_type == T_CDROM && 6535 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6536 continue; 6537 6538 /* Look for the right page code */ 6539 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6540 continue; 6541 6542 /* Look for the right subpage or the subpage wildcard*/ 6543 if ((page_index->subpage != subpage) 6544 && (subpage != SMS_SUBPAGE_ALL)) 6545 continue; 6546 6547#if 0 6548 printf("found page %#x len %d\n", 6549 page_index->page_code & SMPH_PC_MASK, 6550 page_index->page_len); 6551#endif 6552 6553 page_len += page_index->page_len; 6554 } 6555 6556 if (page_len == 0) { 6557 ctl_set_invalid_field(ctsio, 6558 /*sks_valid*/ 1, 6559 /*command*/ 1, 6560 /*field*/ 2, 6561 /*bit_valid*/ 1, 6562 /*bit*/ 5); 6563 ctl_done((union ctl_io *)ctsio); 6564 return (CTL_RETVAL_COMPLETE); 6565 } 6566 break; 6567 } 6568 } 6569 6570 total_len = header_len + page_len; 6571#if 0 6572 printf("header_len = %d, page_len = %d, total_len = %d\n", 6573 header_len, page_len, total_len); 6574#endif 6575 6576 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6577 ctsio->kern_sg_entries = 0; 6578 ctsio->kern_rel_offset = 0; 6579 ctsio->kern_data_len = min(total_len, alloc_len); 6580 ctsio->kern_total_len = ctsio->kern_data_len; 6581 6582 switch (ctsio->cdb[0]) { 6583 case MODE_SENSE_6: { 6584 struct scsi_mode_hdr_6 *header; 6585 6586 header = (struct scsi_mode_hdr_6 *)ctsio->kern_data_ptr; 6587 6588 header->datalen = MIN(total_len - 1, 254); 6589 if (lun->be_lun->lun_type == T_DIRECT) { 6590 header->dev_specific = 0x10; /* DPOFUA */ 6591 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6592 (lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) 6593 header->dev_specific |= 0x80; /* WP */ 6594 } 6595 if (dbd) 6596 header->block_descr_len = 0; 6597 else 6598 header->block_descr_len = 6599 sizeof(struct scsi_mode_block_descr); 6600 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6601 break; 6602 } 6603 case MODE_SENSE_10: { 6604 struct scsi_mode_hdr_10 *header; 6605 int datalen; 6606 6607 header = (struct scsi_mode_hdr_10 *)ctsio->kern_data_ptr; 6608 6609 datalen = MIN(total_len - 2, 65533); 6610 scsi_ulto2b(datalen, header->datalen); 6611 if (lun->be_lun->lun_type == T_DIRECT) { 6612 header->dev_specific = 0x10; /* DPOFUA */ 6613 if ((lun->be_lun->flags & CTL_LUN_FLAG_READONLY) || 6614 (lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) 6615 header->dev_specific |= 0x80; /* WP */ 6616 } 6617 if (dbd) 6618 scsi_ulto2b(0, header->block_descr_len); 6619 else 6620 scsi_ulto2b(sizeof(struct scsi_mode_block_descr), 6621 header->block_descr_len); 6622 block_desc = (struct scsi_mode_block_descr *)&header[1]; 6623 break; 6624 } 6625 default: 6626 panic("%s: Invalid CDB type %#x", __func__, ctsio->cdb[0]); 6627 } 6628 6629 /* 6630 * If we've got a disk, use its blocksize in the block 6631 * descriptor. Otherwise, just set it to 0. 6632 */ 6633 if (dbd == 0) { 6634 if (lun->be_lun->lun_type == T_DIRECT) 6635 scsi_ulto3b(lun->be_lun->blocksize, 6636 block_desc->block_len); 6637 else 6638 scsi_ulto3b(0, block_desc->block_len); 6639 } 6640 6641 switch (page_code) { 6642 case SMS_ALL_PAGES_PAGE: { 6643 int i, data_used; 6644 6645 data_used = header_len; 6646 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6647 struct ctl_page_index *page_index; 6648 6649 page_index = &lun->mode_pages.index[i]; 6650 if (lun->be_lun->lun_type == T_DIRECT && 6651 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6652 continue; 6653 if (lun->be_lun->lun_type == T_PROCESSOR && 6654 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6655 continue; 6656 if (lun->be_lun->lun_type == T_CDROM && 6657 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6658 continue; 6659 6660 /* 6661 * We don't use this subpage if the user didn't 6662 * request all subpages. We already checked (above) 6663 * to make sure the user only specified a subpage 6664 * of 0 or 0xff in the SMS_ALL_PAGES_PAGE case. 6665 */ 6666 if ((page_index->subpage != 0) 6667 && (subpage == SMS_SUBPAGE_PAGE_0)) 6668 continue; 6669 6670 /* 6671 * Call the handler, if it exists, to update the 6672 * page to the latest values. 6673 */ 6674 if (page_index->sense_handler != NULL) 6675 page_index->sense_handler(ctsio, page_index,pc); 6676 6677 memcpy(ctsio->kern_data_ptr + data_used, 6678 page_index->page_data + 6679 (page_index->page_len * pc), 6680 page_index->page_len); 6681 data_used += page_index->page_len; 6682 } 6683 break; 6684 } 6685 default: { 6686 int i, data_used; 6687 6688 data_used = header_len; 6689 6690 for (i = 0; i < CTL_NUM_MODE_PAGES; i++) { 6691 struct ctl_page_index *page_index; 6692 6693 page_index = &lun->mode_pages.index[i]; 6694 6695 /* Look for the right page code */ 6696 if ((page_index->page_code & SMPH_PC_MASK) != page_code) 6697 continue; 6698 6699 /* Look for the right subpage or the subpage wildcard*/ 6700 if ((page_index->subpage != subpage) 6701 && (subpage != SMS_SUBPAGE_ALL)) 6702 continue; 6703 6704 /* Make sure the page is supported for this dev type */ 6705 if (lun->be_lun->lun_type == T_DIRECT && 6706 (page_index->page_flags & CTL_PAGE_FLAG_DIRECT) == 0) 6707 continue; 6708 if (lun->be_lun->lun_type == T_PROCESSOR && 6709 (page_index->page_flags & CTL_PAGE_FLAG_PROC) == 0) 6710 continue; 6711 if (lun->be_lun->lun_type == T_CDROM && 6712 (page_index->page_flags & CTL_PAGE_FLAG_CDROM) == 0) 6713 continue; 6714 6715 /* 6716 * Call the handler, if it exists, to update the 6717 * page to the latest values. 6718 */ 6719 if (page_index->sense_handler != NULL) 6720 page_index->sense_handler(ctsio, page_index,pc); 6721 6722 memcpy(ctsio->kern_data_ptr + data_used, 6723 page_index->page_data + 6724 (page_index->page_len * pc), 6725 page_index->page_len); 6726 data_used += page_index->page_len; 6727 } 6728 break; 6729 } 6730 } 6731 6732 ctl_set_success(ctsio); 6733 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6734 ctsio->be_move_done = ctl_config_move_done; 6735 ctl_datamove((union ctl_io *)ctsio); 6736 return (CTL_RETVAL_COMPLETE); 6737} 6738 6739int 6740ctl_lbp_log_sense_handler(struct ctl_scsiio *ctsio, 6741 struct ctl_page_index *page_index, 6742 int pc) 6743{ 6744 struct ctl_lun *lun = CTL_LUN(ctsio); 6745 struct scsi_log_param_header *phdr; 6746 uint8_t *data; 6747 uint64_t val; 6748 6749 data = page_index->page_data; 6750 6751 if (lun->backend->lun_attr != NULL && 6752 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksavail")) 6753 != UINT64_MAX) { 6754 phdr = (struct scsi_log_param_header *)data; 6755 scsi_ulto2b(0x0001, phdr->param_code); 6756 phdr->param_control = SLP_LBIN | SLP_LP; 6757 phdr->param_len = 8; 6758 data = (uint8_t *)(phdr + 1); 6759 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6760 data[4] = 0x02; /* per-pool */ 6761 data += phdr->param_len; 6762 } 6763 6764 if (lun->backend->lun_attr != NULL && 6765 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "blocksused")) 6766 != UINT64_MAX) { 6767 phdr = (struct scsi_log_param_header *)data; 6768 scsi_ulto2b(0x0002, phdr->param_code); 6769 phdr->param_control = SLP_LBIN | SLP_LP; 6770 phdr->param_len = 8; 6771 data = (uint8_t *)(phdr + 1); 6772 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6773 data[4] = 0x01; /* per-LUN */ 6774 data += phdr->param_len; 6775 } 6776 6777 if (lun->backend->lun_attr != NULL && 6778 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksavail")) 6779 != UINT64_MAX) { 6780 phdr = (struct scsi_log_param_header *)data; 6781 scsi_ulto2b(0x00f1, phdr->param_code); 6782 phdr->param_control = SLP_LBIN | SLP_LP; 6783 phdr->param_len = 8; 6784 data = (uint8_t *)(phdr + 1); 6785 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6786 data[4] = 0x02; /* per-pool */ 6787 data += phdr->param_len; 6788 } 6789 6790 if (lun->backend->lun_attr != NULL && 6791 (val = lun->backend->lun_attr(lun->be_lun->be_lun, "poolblocksused")) 6792 != UINT64_MAX) { 6793 phdr = (struct scsi_log_param_header *)data; 6794 scsi_ulto2b(0x00f2, phdr->param_code); 6795 phdr->param_control = SLP_LBIN | SLP_LP; 6796 phdr->param_len = 8; 6797 data = (uint8_t *)(phdr + 1); 6798 scsi_ulto4b(val >> CTL_LBP_EXPONENT, data); 6799 data[4] = 0x02; /* per-pool */ 6800 data += phdr->param_len; 6801 } 6802 6803 page_index->page_len = data - page_index->page_data; 6804 return (0); 6805} 6806 6807int 6808ctl_sap_log_sense_handler(struct ctl_scsiio *ctsio, 6809 struct ctl_page_index *page_index, 6810 int pc) 6811{ 6812 struct ctl_lun *lun = CTL_LUN(ctsio); 6813 struct stat_page *data; 6814 struct bintime *t; 6815 6816 data = (struct stat_page *)page_index->page_data; 6817 6818 scsi_ulto2b(SLP_SAP, data->sap.hdr.param_code); 6819 data->sap.hdr.param_control = SLP_LBIN; 6820 data->sap.hdr.param_len = sizeof(struct scsi_log_stat_and_perf) - 6821 sizeof(struct scsi_log_param_header); 6822 scsi_u64to8b(lun->stats.operations[CTL_STATS_READ], 6823 data->sap.read_num); 6824 scsi_u64to8b(lun->stats.operations[CTL_STATS_WRITE], 6825 data->sap.write_num); 6826 if (lun->be_lun->blocksize > 0) { 6827 scsi_u64to8b(lun->stats.bytes[CTL_STATS_WRITE] / 6828 lun->be_lun->blocksize, data->sap.recvieved_lba); 6829 scsi_u64to8b(lun->stats.bytes[CTL_STATS_READ] / 6830 lun->be_lun->blocksize, data->sap.transmitted_lba); 6831 } 6832 t = &lun->stats.time[CTL_STATS_READ]; 6833 scsi_u64to8b((uint64_t)t->sec * 1000 + t->frac / (UINT64_MAX / 1000), 6834 data->sap.read_int); 6835 t = &lun->stats.time[CTL_STATS_WRITE]; 6836 scsi_u64to8b((uint64_t)t->sec * 1000 + t->frac / (UINT64_MAX / 1000), 6837 data->sap.write_int); 6838 scsi_u64to8b(0, data->sap.weighted_num); 6839 scsi_u64to8b(0, data->sap.weighted_int); 6840 scsi_ulto2b(SLP_IT, data->it.hdr.param_code); 6841 data->it.hdr.param_control = SLP_LBIN; 6842 data->it.hdr.param_len = sizeof(struct scsi_log_idle_time) - 6843 sizeof(struct scsi_log_param_header); 6844#ifdef CTL_TIME_IO 6845 scsi_u64to8b(lun->idle_time / SBT_1MS, data->it.idle_int); 6846#endif 6847 scsi_ulto2b(SLP_TI, data->ti.hdr.param_code); 6848 data->it.hdr.param_control = SLP_LBIN; 6849 data->ti.hdr.param_len = sizeof(struct scsi_log_time_interval) - 6850 sizeof(struct scsi_log_param_header); 6851 scsi_ulto4b(3, data->ti.exponent); 6852 scsi_ulto4b(1, data->ti.integer); 6853 return (0); 6854} 6855 6856int 6857ctl_ie_log_sense_handler(struct ctl_scsiio *ctsio, 6858 struct ctl_page_index *page_index, 6859 int pc) 6860{ 6861 struct ctl_lun *lun = CTL_LUN(ctsio); 6862 struct scsi_log_informational_exceptions *data; 6863 6864 data = (struct scsi_log_informational_exceptions *)page_index->page_data; 6865 6866 scsi_ulto2b(SLP_IE_GEN, data->hdr.param_code); 6867 data->hdr.param_control = SLP_LBIN; 6868 data->hdr.param_len = sizeof(struct scsi_log_informational_exceptions) - 6869 sizeof(struct scsi_log_param_header); 6870 data->ie_asc = lun->ie_asc; 6871 data->ie_ascq = lun->ie_ascq; 6872 data->temperature = 0xff; 6873 return (0); 6874} 6875 6876int 6877ctl_log_sense(struct ctl_scsiio *ctsio) 6878{ 6879 struct ctl_lun *lun = CTL_LUN(ctsio); 6880 int i, pc, page_code, subpage; 6881 int alloc_len, total_len; 6882 struct ctl_page_index *page_index; 6883 struct scsi_log_sense *cdb; 6884 struct scsi_log_header *header; 6885 6886 CTL_DEBUG_PRINT(("ctl_log_sense\n")); 6887 6888 cdb = (struct scsi_log_sense *)ctsio->cdb; 6889 pc = (cdb->page & SLS_PAGE_CTRL_MASK) >> 6; 6890 page_code = cdb->page & SLS_PAGE_CODE; 6891 subpage = cdb->subpage; 6892 alloc_len = scsi_2btoul(cdb->length); 6893 6894 page_index = NULL; 6895 for (i = 0; i < CTL_NUM_LOG_PAGES; i++) { 6896 page_index = &lun->log_pages.index[i]; 6897 6898 /* Look for the right page code */ 6899 if ((page_index->page_code & SL_PAGE_CODE) != page_code) 6900 continue; 6901 6902 /* Look for the right subpage or the subpage wildcard*/ 6903 if (page_index->subpage != subpage) 6904 continue; 6905 6906 break; 6907 } 6908 if (i >= CTL_NUM_LOG_PAGES) { 6909 ctl_set_invalid_field(ctsio, 6910 /*sks_valid*/ 1, 6911 /*command*/ 1, 6912 /*field*/ 2, 6913 /*bit_valid*/ 0, 6914 /*bit*/ 0); 6915 ctl_done((union ctl_io *)ctsio); 6916 return (CTL_RETVAL_COMPLETE); 6917 } 6918 6919 total_len = sizeof(struct scsi_log_header) + page_index->page_len; 6920 6921 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 6922 ctsio->kern_sg_entries = 0; 6923 ctsio->kern_rel_offset = 0; 6924 ctsio->kern_data_len = min(total_len, alloc_len); 6925 ctsio->kern_total_len = ctsio->kern_data_len; 6926 6927 header = (struct scsi_log_header *)ctsio->kern_data_ptr; 6928 header->page = page_index->page_code; 6929 if (page_index->page_code == SLS_LOGICAL_BLOCK_PROVISIONING) 6930 header->page |= SL_DS; 6931 if (page_index->subpage) { 6932 header->page |= SL_SPF; 6933 header->subpage = page_index->subpage; 6934 } 6935 scsi_ulto2b(page_index->page_len, header->datalen); 6936 6937 /* 6938 * Call the handler, if it exists, to update the 6939 * page to the latest values. 6940 */ 6941 if (page_index->sense_handler != NULL) 6942 page_index->sense_handler(ctsio, page_index, pc); 6943 6944 memcpy(header + 1, page_index->page_data, page_index->page_len); 6945 6946 ctl_set_success(ctsio); 6947 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 6948 ctsio->be_move_done = ctl_config_move_done; 6949 ctl_datamove((union ctl_io *)ctsio); 6950 return (CTL_RETVAL_COMPLETE); 6951} 6952 6953int 6954ctl_read_capacity(struct ctl_scsiio *ctsio) 6955{ 6956 struct ctl_lun *lun = CTL_LUN(ctsio); 6957 struct scsi_read_capacity *cdb; 6958 struct scsi_read_capacity_data *data; 6959 uint32_t lba; 6960 6961 CTL_DEBUG_PRINT(("ctl_read_capacity\n")); 6962 6963 cdb = (struct scsi_read_capacity *)ctsio->cdb; 6964 6965 lba = scsi_4btoul(cdb->addr); 6966 if (((cdb->pmi & SRC_PMI) == 0) 6967 && (lba != 0)) { 6968 ctl_set_invalid_field(/*ctsio*/ ctsio, 6969 /*sks_valid*/ 1, 6970 /*command*/ 1, 6971 /*field*/ 2, 6972 /*bit_valid*/ 0, 6973 /*bit*/ 0); 6974 ctl_done((union ctl_io *)ctsio); 6975 return (CTL_RETVAL_COMPLETE); 6976 } 6977 6978 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 6979 data = (struct scsi_read_capacity_data *)ctsio->kern_data_ptr; 6980 ctsio->kern_data_len = sizeof(*data); 6981 ctsio->kern_total_len = sizeof(*data); 6982 ctsio->kern_rel_offset = 0; 6983 ctsio->kern_sg_entries = 0; 6984 6985 /* 6986 * If the maximum LBA is greater than 0xfffffffe, the user must 6987 * issue a SERVICE ACTION IN (16) command, with the read capacity 6988 * serivce action set. 6989 */ 6990 if (lun->be_lun->maxlba > 0xfffffffe) 6991 scsi_ulto4b(0xffffffff, data->addr); 6992 else 6993 scsi_ulto4b(lun->be_lun->maxlba, data->addr); 6994 6995 /* 6996 * XXX KDM this may not be 512 bytes... 6997 */ 6998 scsi_ulto4b(lun->be_lun->blocksize, data->length); 6999 7000 ctl_set_success(ctsio); 7001 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7002 ctsio->be_move_done = ctl_config_move_done; 7003 ctl_datamove((union ctl_io *)ctsio); 7004 return (CTL_RETVAL_COMPLETE); 7005} 7006 7007int 7008ctl_read_capacity_16(struct ctl_scsiio *ctsio) 7009{ 7010 struct ctl_lun *lun = CTL_LUN(ctsio); 7011 struct scsi_read_capacity_16 *cdb; 7012 struct scsi_read_capacity_data_long *data; 7013 uint64_t lba; 7014 uint32_t alloc_len; 7015 7016 CTL_DEBUG_PRINT(("ctl_read_capacity_16\n")); 7017 7018 cdb = (struct scsi_read_capacity_16 *)ctsio->cdb; 7019 7020 alloc_len = scsi_4btoul(cdb->alloc_len); 7021 lba = scsi_8btou64(cdb->addr); 7022 7023 if ((cdb->reladr & SRC16_PMI) 7024 && (lba != 0)) { 7025 ctl_set_invalid_field(/*ctsio*/ ctsio, 7026 /*sks_valid*/ 1, 7027 /*command*/ 1, 7028 /*field*/ 2, 7029 /*bit_valid*/ 0, 7030 /*bit*/ 0); 7031 ctl_done((union ctl_io *)ctsio); 7032 return (CTL_RETVAL_COMPLETE); 7033 } 7034 7035 ctsio->kern_data_ptr = malloc(sizeof(*data), M_CTL, M_WAITOK | M_ZERO); 7036 data = (struct scsi_read_capacity_data_long *)ctsio->kern_data_ptr; 7037 ctsio->kern_rel_offset = 0; 7038 ctsio->kern_sg_entries = 0; 7039 ctsio->kern_data_len = min(sizeof(*data), alloc_len); 7040 ctsio->kern_total_len = ctsio->kern_data_len; 7041 7042 scsi_u64to8b(lun->be_lun->maxlba, data->addr); 7043 /* XXX KDM this may not be 512 bytes... */ 7044 scsi_ulto4b(lun->be_lun->blocksize, data->length); 7045 data->prot_lbppbe = lun->be_lun->pblockexp & SRC16_LBPPBE; 7046 scsi_ulto2b(lun->be_lun->pblockoff & SRC16_LALBA_A, data->lalba_lbp); 7047 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) 7048 data->lalba_lbp[0] |= SRC16_LBPME | SRC16_LBPRZ; 7049 7050 ctl_set_success(ctsio); 7051 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7052 ctsio->be_move_done = ctl_config_move_done; 7053 ctl_datamove((union ctl_io *)ctsio); 7054 return (CTL_RETVAL_COMPLETE); 7055} 7056 7057int 7058ctl_get_lba_status(struct ctl_scsiio *ctsio) 7059{ 7060 struct ctl_lun *lun = CTL_LUN(ctsio); 7061 struct scsi_get_lba_status *cdb; 7062 struct scsi_get_lba_status_data *data; 7063 struct ctl_lba_len_flags *lbalen; 7064 uint64_t lba; 7065 uint32_t alloc_len, total_len; 7066 int retval; 7067 7068 CTL_DEBUG_PRINT(("ctl_get_lba_status\n")); 7069 7070 cdb = (struct scsi_get_lba_status *)ctsio->cdb; 7071 lba = scsi_8btou64(cdb->addr); 7072 alloc_len = scsi_4btoul(cdb->alloc_len); 7073 7074 if (lba > lun->be_lun->maxlba) { 7075 ctl_set_lba_out_of_range(ctsio, lba); 7076 ctl_done((union ctl_io *)ctsio); 7077 return (CTL_RETVAL_COMPLETE); 7078 } 7079 7080 total_len = sizeof(*data) + sizeof(data->descr[0]); 7081 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7082 data = (struct scsi_get_lba_status_data *)ctsio->kern_data_ptr; 7083 ctsio->kern_rel_offset = 0; 7084 ctsio->kern_sg_entries = 0; 7085 ctsio->kern_data_len = min(total_len, alloc_len); 7086 ctsio->kern_total_len = ctsio->kern_data_len; 7087 7088 /* Fill dummy data in case backend can't tell anything. */ 7089 scsi_ulto4b(4 + sizeof(data->descr[0]), data->length); 7090 scsi_u64to8b(lba, data->descr[0].addr); 7091 scsi_ulto4b(MIN(UINT32_MAX, lun->be_lun->maxlba + 1 - lba), 7092 data->descr[0].length); 7093 data->descr[0].status = 0; /* Mapped or unknown. */ 7094 7095 ctl_set_success(ctsio); 7096 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7097 ctsio->be_move_done = ctl_config_move_done; 7098 7099 lbalen = (struct ctl_lba_len_flags *)&ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 7100 lbalen->lba = lba; 7101 lbalen->len = total_len; 7102 lbalen->flags = 0; 7103 retval = lun->backend->config_read((union ctl_io *)ctsio); 7104 return (retval); 7105} 7106 7107int 7108ctl_read_defect(struct ctl_scsiio *ctsio) 7109{ 7110 struct scsi_read_defect_data_10 *ccb10; 7111 struct scsi_read_defect_data_12 *ccb12; 7112 struct scsi_read_defect_data_hdr_10 *data10; 7113 struct scsi_read_defect_data_hdr_12 *data12; 7114 uint32_t alloc_len, data_len; 7115 uint8_t format; 7116 7117 CTL_DEBUG_PRINT(("ctl_read_defect\n")); 7118 7119 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7120 ccb10 = (struct scsi_read_defect_data_10 *)&ctsio->cdb; 7121 format = ccb10->format; 7122 alloc_len = scsi_2btoul(ccb10->alloc_length); 7123 data_len = sizeof(*data10); 7124 } else { 7125 ccb12 = (struct scsi_read_defect_data_12 *)&ctsio->cdb; 7126 format = ccb12->format; 7127 alloc_len = scsi_4btoul(ccb12->alloc_length); 7128 data_len = sizeof(*data12); 7129 } 7130 if (alloc_len == 0) { 7131 ctl_set_success(ctsio); 7132 ctl_done((union ctl_io *)ctsio); 7133 return (CTL_RETVAL_COMPLETE); 7134 } 7135 7136 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 7137 ctsio->kern_rel_offset = 0; 7138 ctsio->kern_sg_entries = 0; 7139 ctsio->kern_data_len = min(data_len, alloc_len); 7140 ctsio->kern_total_len = ctsio->kern_data_len; 7141 7142 if (ctsio->cdb[0] == READ_DEFECT_DATA_10) { 7143 data10 = (struct scsi_read_defect_data_hdr_10 *) 7144 ctsio->kern_data_ptr; 7145 data10->format = format; 7146 scsi_ulto2b(0, data10->length); 7147 } else { 7148 data12 = (struct scsi_read_defect_data_hdr_12 *) 7149 ctsio->kern_data_ptr; 7150 data12->format = format; 7151 scsi_ulto2b(0, data12->generation); 7152 scsi_ulto4b(0, data12->length); 7153 } 7154 7155 ctl_set_success(ctsio); 7156 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7157 ctsio->be_move_done = ctl_config_move_done; 7158 ctl_datamove((union ctl_io *)ctsio); 7159 return (CTL_RETVAL_COMPLETE); 7160} 7161 7162int 7163ctl_report_tagret_port_groups(struct ctl_scsiio *ctsio) 7164{ 7165 struct ctl_softc *softc = CTL_SOFTC(ctsio); 7166 struct ctl_lun *lun = CTL_LUN(ctsio); 7167 struct scsi_maintenance_in *cdb; 7168 int retval; 7169 int alloc_len, ext, total_len = 0, g, pc, pg, ts, os; 7170 int num_ha_groups, num_target_ports, shared_group; 7171 struct ctl_port *port; 7172 struct scsi_target_group_data *rtg_ptr; 7173 struct scsi_target_group_data_extended *rtg_ext_ptr; 7174 struct scsi_target_port_group_descriptor *tpg_desc; 7175 7176 CTL_DEBUG_PRINT(("ctl_report_tagret_port_groups\n")); 7177 7178 cdb = (struct scsi_maintenance_in *)ctsio->cdb; 7179 retval = CTL_RETVAL_COMPLETE; 7180 7181 switch (cdb->byte2 & STG_PDF_MASK) { 7182 case STG_PDF_LENGTH: 7183 ext = 0; 7184 break; 7185 case STG_PDF_EXTENDED: 7186 ext = 1; 7187 break; 7188 default: 7189 ctl_set_invalid_field(/*ctsio*/ ctsio, 7190 /*sks_valid*/ 1, 7191 /*command*/ 1, 7192 /*field*/ 2, 7193 /*bit_valid*/ 1, 7194 /*bit*/ 5); 7195 ctl_done((union ctl_io *)ctsio); 7196 return(retval); 7197 } 7198 7199 num_target_ports = 0; 7200 shared_group = (softc->is_single != 0); 7201 mtx_lock(&softc->ctl_lock); 7202 STAILQ_FOREACH(port, &softc->port_list, links) { 7203 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7204 continue; 7205 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 7206 continue; 7207 num_target_ports++; 7208 if (port->status & CTL_PORT_STATUS_HA_SHARED) 7209 shared_group = 1; 7210 } 7211 mtx_unlock(&softc->ctl_lock); 7212 num_ha_groups = (softc->is_single) ? 0 : NUM_HA_SHELVES; 7213 7214 if (ext) 7215 total_len = sizeof(struct scsi_target_group_data_extended); 7216 else 7217 total_len = sizeof(struct scsi_target_group_data); 7218 total_len += sizeof(struct scsi_target_port_group_descriptor) * 7219 (shared_group + num_ha_groups) + 7220 sizeof(struct scsi_target_port_descriptor) * num_target_ports; 7221 7222 alloc_len = scsi_4btoul(cdb->length); 7223 7224 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7225 ctsio->kern_sg_entries = 0; 7226 ctsio->kern_rel_offset = 0; 7227 ctsio->kern_data_len = min(total_len, alloc_len); 7228 ctsio->kern_total_len = ctsio->kern_data_len; 7229 7230 if (ext) { 7231 rtg_ext_ptr = (struct scsi_target_group_data_extended *) 7232 ctsio->kern_data_ptr; 7233 scsi_ulto4b(total_len - 4, rtg_ext_ptr->length); 7234 rtg_ext_ptr->format_type = 0x10; 7235 rtg_ext_ptr->implicit_transition_time = 0; 7236 tpg_desc = &rtg_ext_ptr->groups[0]; 7237 } else { 7238 rtg_ptr = (struct scsi_target_group_data *) 7239 ctsio->kern_data_ptr; 7240 scsi_ulto4b(total_len - 4, rtg_ptr->length); 7241 tpg_desc = &rtg_ptr->groups[0]; 7242 } 7243 7244 mtx_lock(&softc->ctl_lock); 7245 pg = softc->port_min / softc->port_cnt; 7246 if (lun->flags & (CTL_LUN_PRIMARY_SC | CTL_LUN_PEER_SC_PRIMARY)) { 7247 /* Some shelf is known to be primary. */ 7248 if (softc->ha_link == CTL_HA_LINK_OFFLINE) 7249 os = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7250 else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) 7251 os = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7252 else if (softc->ha_mode == CTL_HA_MODE_ACT_STBY) 7253 os = TPG_ASYMMETRIC_ACCESS_STANDBY; 7254 else 7255 os = TPG_ASYMMETRIC_ACCESS_NONOPTIMIZED; 7256 if (lun->flags & CTL_LUN_PRIMARY_SC) { 7257 ts = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7258 } else { 7259 ts = os; 7260 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7261 } 7262 } else { 7263 /* No known primary shelf. */ 7264 if (softc->ha_link == CTL_HA_LINK_OFFLINE) { 7265 ts = TPG_ASYMMETRIC_ACCESS_UNAVAILABLE; 7266 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7267 } else if (softc->ha_link == CTL_HA_LINK_UNKNOWN) { 7268 ts = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7269 os = TPG_ASYMMETRIC_ACCESS_OPTIMIZED; 7270 } else { 7271 ts = os = TPG_ASYMMETRIC_ACCESS_TRANSITIONING; 7272 } 7273 } 7274 if (shared_group) { 7275 tpg_desc->pref_state = ts; 7276 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7277 TPG_U_SUP | TPG_T_SUP; 7278 scsi_ulto2b(1, tpg_desc->target_port_group); 7279 tpg_desc->status = TPG_IMPLICIT; 7280 pc = 0; 7281 STAILQ_FOREACH(port, &softc->port_list, links) { 7282 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7283 continue; 7284 if (!softc->is_single && 7285 (port->status & CTL_PORT_STATUS_HA_SHARED) == 0) 7286 continue; 7287 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 7288 continue; 7289 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7290 relative_target_port_identifier); 7291 pc++; 7292 } 7293 tpg_desc->target_port_count = pc; 7294 tpg_desc = (struct scsi_target_port_group_descriptor *) 7295 &tpg_desc->descriptors[pc]; 7296 } 7297 for (g = 0; g < num_ha_groups; g++) { 7298 tpg_desc->pref_state = (g == pg) ? ts : os; 7299 tpg_desc->support = TPG_AO_SUP | TPG_AN_SUP | TPG_S_SUP | 7300 TPG_U_SUP | TPG_T_SUP; 7301 scsi_ulto2b(2 + g, tpg_desc->target_port_group); 7302 tpg_desc->status = TPG_IMPLICIT; 7303 pc = 0; 7304 STAILQ_FOREACH(port, &softc->port_list, links) { 7305 if (port->targ_port < g * softc->port_cnt || 7306 port->targ_port >= (g + 1) * softc->port_cnt) 7307 continue; 7308 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 7309 continue; 7310 if (port->status & CTL_PORT_STATUS_HA_SHARED) 7311 continue; 7312 if (ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 7313 continue; 7314 scsi_ulto2b(port->targ_port, tpg_desc->descriptors[pc]. 7315 relative_target_port_identifier); 7316 pc++; 7317 } 7318 tpg_desc->target_port_count = pc; 7319 tpg_desc = (struct scsi_target_port_group_descriptor *) 7320 &tpg_desc->descriptors[pc]; 7321 } 7322 mtx_unlock(&softc->ctl_lock); 7323 7324 ctl_set_success(ctsio); 7325 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7326 ctsio->be_move_done = ctl_config_move_done; 7327 ctl_datamove((union ctl_io *)ctsio); 7328 return(retval); 7329} 7330 7331int 7332ctl_report_supported_opcodes(struct ctl_scsiio *ctsio) 7333{ 7334 struct ctl_lun *lun = CTL_LUN(ctsio); 7335 struct scsi_report_supported_opcodes *cdb; 7336 const struct ctl_cmd_entry *entry, *sentry; 7337 struct scsi_report_supported_opcodes_all *all; 7338 struct scsi_report_supported_opcodes_descr *descr; 7339 struct scsi_report_supported_opcodes_one *one; 7340 int retval; 7341 int alloc_len, total_len; 7342 int opcode, service_action, i, j, num; 7343 7344 CTL_DEBUG_PRINT(("ctl_report_supported_opcodes\n")); 7345 7346 cdb = (struct scsi_report_supported_opcodes *)ctsio->cdb; 7347 retval = CTL_RETVAL_COMPLETE; 7348 7349 opcode = cdb->requested_opcode; 7350 service_action = scsi_2btoul(cdb->requested_service_action); 7351 switch (cdb->options & RSO_OPTIONS_MASK) { 7352 case RSO_OPTIONS_ALL: 7353 num = 0; 7354 for (i = 0; i < 256; i++) { 7355 entry = &ctl_cmd_table[i]; 7356 if (entry->flags & CTL_CMD_FLAG_SA5) { 7357 for (j = 0; j < 32; j++) { 7358 sentry = &((const struct ctl_cmd_entry *) 7359 entry->execute)[j]; 7360 if (ctl_cmd_applicable( 7361 lun->be_lun->lun_type, sentry)) 7362 num++; 7363 } 7364 } else { 7365 if (ctl_cmd_applicable(lun->be_lun->lun_type, 7366 entry)) 7367 num++; 7368 } 7369 } 7370 total_len = sizeof(struct scsi_report_supported_opcodes_all) + 7371 num * sizeof(struct scsi_report_supported_opcodes_descr); 7372 break; 7373 case RSO_OPTIONS_OC: 7374 if (ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) { 7375 ctl_set_invalid_field(/*ctsio*/ ctsio, 7376 /*sks_valid*/ 1, 7377 /*command*/ 1, 7378 /*field*/ 2, 7379 /*bit_valid*/ 1, 7380 /*bit*/ 2); 7381 ctl_done((union ctl_io *)ctsio); 7382 return (CTL_RETVAL_COMPLETE); 7383 } 7384 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7385 break; 7386 case RSO_OPTIONS_OC_SA: 7387 if ((ctl_cmd_table[opcode].flags & CTL_CMD_FLAG_SA5) == 0 || 7388 service_action >= 32) { 7389 ctl_set_invalid_field(/*ctsio*/ ctsio, 7390 /*sks_valid*/ 1, 7391 /*command*/ 1, 7392 /*field*/ 2, 7393 /*bit_valid*/ 1, 7394 /*bit*/ 2); 7395 ctl_done((union ctl_io *)ctsio); 7396 return (CTL_RETVAL_COMPLETE); 7397 } 7398 /* FALLTHROUGH */ 7399 case RSO_OPTIONS_OC_ASA: 7400 total_len = sizeof(struct scsi_report_supported_opcodes_one) + 32; 7401 break; 7402 default: 7403 ctl_set_invalid_field(/*ctsio*/ ctsio, 7404 /*sks_valid*/ 1, 7405 /*command*/ 1, 7406 /*field*/ 2, 7407 /*bit_valid*/ 1, 7408 /*bit*/ 2); 7409 ctl_done((union ctl_io *)ctsio); 7410 return (CTL_RETVAL_COMPLETE); 7411 } 7412 7413 alloc_len = scsi_4btoul(cdb->length); 7414 7415 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7416 ctsio->kern_sg_entries = 0; 7417 ctsio->kern_rel_offset = 0; 7418 ctsio->kern_data_len = min(total_len, alloc_len); 7419 ctsio->kern_total_len = ctsio->kern_data_len; 7420 7421 switch (cdb->options & RSO_OPTIONS_MASK) { 7422 case RSO_OPTIONS_ALL: 7423 all = (struct scsi_report_supported_opcodes_all *) 7424 ctsio->kern_data_ptr; 7425 num = 0; 7426 for (i = 0; i < 256; i++) { 7427 entry = &ctl_cmd_table[i]; 7428 if (entry->flags & CTL_CMD_FLAG_SA5) { 7429 for (j = 0; j < 32; j++) { 7430 sentry = &((const struct ctl_cmd_entry *) 7431 entry->execute)[j]; 7432 if (!ctl_cmd_applicable( 7433 lun->be_lun->lun_type, sentry)) 7434 continue; 7435 descr = &all->descr[num++]; 7436 descr->opcode = i; 7437 scsi_ulto2b(j, descr->service_action); 7438 descr->flags = RSO_SERVACTV; 7439 scsi_ulto2b(sentry->length, 7440 descr->cdb_length); 7441 } 7442 } else { 7443 if (!ctl_cmd_applicable(lun->be_lun->lun_type, 7444 entry)) 7445 continue; 7446 descr = &all->descr[num++]; 7447 descr->opcode = i; 7448 scsi_ulto2b(0, descr->service_action); 7449 descr->flags = 0; 7450 scsi_ulto2b(entry->length, descr->cdb_length); 7451 } 7452 } 7453 scsi_ulto4b( 7454 num * sizeof(struct scsi_report_supported_opcodes_descr), 7455 all->length); 7456 break; 7457 case RSO_OPTIONS_OC: 7458 one = (struct scsi_report_supported_opcodes_one *) 7459 ctsio->kern_data_ptr; 7460 entry = &ctl_cmd_table[opcode]; 7461 goto fill_one; 7462 case RSO_OPTIONS_OC_SA: 7463 one = (struct scsi_report_supported_opcodes_one *) 7464 ctsio->kern_data_ptr; 7465 entry = &ctl_cmd_table[opcode]; 7466 entry = &((const struct ctl_cmd_entry *) 7467 entry->execute)[service_action]; 7468fill_one: 7469 if (ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 7470 one->support = 3; 7471 scsi_ulto2b(entry->length, one->cdb_length); 7472 one->cdb_usage[0] = opcode; 7473 memcpy(&one->cdb_usage[1], entry->usage, 7474 entry->length - 1); 7475 } else 7476 one->support = 1; 7477 break; 7478 case RSO_OPTIONS_OC_ASA: 7479 one = (struct scsi_report_supported_opcodes_one *) 7480 ctsio->kern_data_ptr; 7481 entry = &ctl_cmd_table[opcode]; 7482 if (entry->flags & CTL_CMD_FLAG_SA5) { 7483 entry = &((const struct ctl_cmd_entry *) 7484 entry->execute)[service_action]; 7485 } else if (service_action != 0) { 7486 one->support = 1; 7487 break; 7488 } 7489 goto fill_one; 7490 } 7491 7492 ctl_set_success(ctsio); 7493 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7494 ctsio->be_move_done = ctl_config_move_done; 7495 ctl_datamove((union ctl_io *)ctsio); 7496 return(retval); 7497} 7498 7499int 7500ctl_report_supported_tmf(struct ctl_scsiio *ctsio) 7501{ 7502 struct scsi_report_supported_tmf *cdb; 7503 struct scsi_report_supported_tmf_ext_data *data; 7504 int retval; 7505 int alloc_len, total_len; 7506 7507 CTL_DEBUG_PRINT(("ctl_report_supported_tmf\n")); 7508 7509 cdb = (struct scsi_report_supported_tmf *)ctsio->cdb; 7510 7511 retval = CTL_RETVAL_COMPLETE; 7512 7513 if (cdb->options & RST_REPD) 7514 total_len = sizeof(struct scsi_report_supported_tmf_ext_data); 7515 else 7516 total_len = sizeof(struct scsi_report_supported_tmf_data); 7517 alloc_len = scsi_4btoul(cdb->length); 7518 7519 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7520 ctsio->kern_sg_entries = 0; 7521 ctsio->kern_rel_offset = 0; 7522 ctsio->kern_data_len = min(total_len, alloc_len); 7523 ctsio->kern_total_len = ctsio->kern_data_len; 7524 7525 data = (struct scsi_report_supported_tmf_ext_data *)ctsio->kern_data_ptr; 7526 data->byte1 |= RST_ATS | RST_ATSS | RST_CTSS | RST_LURS | RST_QTS | 7527 RST_TRS; 7528 data->byte2 |= RST_QAES | RST_QTSS | RST_ITNRS; 7529 data->length = total_len - 4; 7530 7531 ctl_set_success(ctsio); 7532 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7533 ctsio->be_move_done = ctl_config_move_done; 7534 ctl_datamove((union ctl_io *)ctsio); 7535 return (retval); 7536} 7537 7538int 7539ctl_report_timestamp(struct ctl_scsiio *ctsio) 7540{ 7541 struct scsi_report_timestamp *cdb; 7542 struct scsi_report_timestamp_data *data; 7543 struct timeval tv; 7544 int64_t timestamp; 7545 int retval; 7546 int alloc_len, total_len; 7547 7548 CTL_DEBUG_PRINT(("ctl_report_timestamp\n")); 7549 7550 cdb = (struct scsi_report_timestamp *)ctsio->cdb; 7551 7552 retval = CTL_RETVAL_COMPLETE; 7553 7554 total_len = sizeof(struct scsi_report_timestamp_data); 7555 alloc_len = scsi_4btoul(cdb->length); 7556 7557 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7558 ctsio->kern_sg_entries = 0; 7559 ctsio->kern_rel_offset = 0; 7560 ctsio->kern_data_len = min(total_len, alloc_len); 7561 ctsio->kern_total_len = ctsio->kern_data_len; 7562 7563 data = (struct scsi_report_timestamp_data *)ctsio->kern_data_ptr; 7564 scsi_ulto2b(sizeof(*data) - 2, data->length); 7565 data->origin = RTS_ORIG_OUTSIDE; 7566 getmicrotime(&tv); 7567 timestamp = (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000; 7568 scsi_ulto4b(timestamp >> 16, data->timestamp); 7569 scsi_ulto2b(timestamp & 0xffff, &data->timestamp[4]); 7570 7571 ctl_set_success(ctsio); 7572 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7573 ctsio->be_move_done = ctl_config_move_done; 7574 ctl_datamove((union ctl_io *)ctsio); 7575 return (retval); 7576} 7577 7578int 7579ctl_persistent_reserve_in(struct ctl_scsiio *ctsio) 7580{ 7581 struct ctl_softc *softc = CTL_SOFTC(ctsio); 7582 struct ctl_lun *lun = CTL_LUN(ctsio); 7583 struct scsi_per_res_in *cdb; 7584 int alloc_len, total_len = 0; 7585 /* struct scsi_per_res_in_rsrv in_data; */ 7586 uint64_t key; 7587 7588 CTL_DEBUG_PRINT(("ctl_persistent_reserve_in\n")); 7589 7590 cdb = (struct scsi_per_res_in *)ctsio->cdb; 7591 7592 alloc_len = scsi_2btoul(cdb->length); 7593 7594retry: 7595 mtx_lock(&lun->lun_lock); 7596 switch (cdb->action) { 7597 case SPRI_RK: /* read keys */ 7598 total_len = sizeof(struct scsi_per_res_in_keys) + 7599 lun->pr_key_count * 7600 sizeof(struct scsi_per_res_key); 7601 break; 7602 case SPRI_RR: /* read reservation */ 7603 if (lun->flags & CTL_LUN_PR_RESERVED) 7604 total_len = sizeof(struct scsi_per_res_in_rsrv); 7605 else 7606 total_len = sizeof(struct scsi_per_res_in_header); 7607 break; 7608 case SPRI_RC: /* report capabilities */ 7609 total_len = sizeof(struct scsi_per_res_cap); 7610 break; 7611 case SPRI_RS: /* read full status */ 7612 total_len = sizeof(struct scsi_per_res_in_header) + 7613 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7614 lun->pr_key_count; 7615 break; 7616 default: 7617 panic("%s: Invalid PR type %#x", __func__, cdb->action); 7618 } 7619 mtx_unlock(&lun->lun_lock); 7620 7621 ctsio->kern_data_ptr = malloc(total_len, M_CTL, M_WAITOK | M_ZERO); 7622 ctsio->kern_rel_offset = 0; 7623 ctsio->kern_sg_entries = 0; 7624 ctsio->kern_data_len = min(total_len, alloc_len); 7625 ctsio->kern_total_len = ctsio->kern_data_len; 7626 7627 mtx_lock(&lun->lun_lock); 7628 switch (cdb->action) { 7629 case SPRI_RK: { // read keys 7630 struct scsi_per_res_in_keys *res_keys; 7631 int i, key_count; 7632 7633 res_keys = (struct scsi_per_res_in_keys*)ctsio->kern_data_ptr; 7634 7635 /* 7636 * We had to drop the lock to allocate our buffer, which 7637 * leaves time for someone to come in with another 7638 * persistent reservation. (That is unlikely, though, 7639 * since this should be the only persistent reservation 7640 * command active right now.) 7641 */ 7642 if (total_len != (sizeof(struct scsi_per_res_in_keys) + 7643 (lun->pr_key_count * 7644 sizeof(struct scsi_per_res_key)))){ 7645 mtx_unlock(&lun->lun_lock); 7646 free(ctsio->kern_data_ptr, M_CTL); 7647 printf("%s: reservation length changed, retrying\n", 7648 __func__); 7649 goto retry; 7650 } 7651 7652 scsi_ulto4b(lun->pr_generation, res_keys->header.generation); 7653 7654 scsi_ulto4b(sizeof(struct scsi_per_res_key) * 7655 lun->pr_key_count, res_keys->header.length); 7656 7657 for (i = 0, key_count = 0; i < CTL_MAX_INITIATORS; i++) { 7658 if ((key = ctl_get_prkey(lun, i)) == 0) 7659 continue; 7660 7661 /* 7662 * We used lun->pr_key_count to calculate the 7663 * size to allocate. If it turns out the number of 7664 * initiators with the registered flag set is 7665 * larger than that (i.e. they haven't been kept in 7666 * sync), we've got a problem. 7667 */ 7668 if (key_count >= lun->pr_key_count) { 7669 key_count++; 7670 continue; 7671 } 7672 scsi_u64to8b(key, res_keys->keys[key_count].key); 7673 key_count++; 7674 } 7675 break; 7676 } 7677 case SPRI_RR: { // read reservation 7678 struct scsi_per_res_in_rsrv *res; 7679 int tmp_len, header_only; 7680 7681 res = (struct scsi_per_res_in_rsrv *)ctsio->kern_data_ptr; 7682 7683 scsi_ulto4b(lun->pr_generation, res->header.generation); 7684 7685 if (lun->flags & CTL_LUN_PR_RESERVED) 7686 { 7687 tmp_len = sizeof(struct scsi_per_res_in_rsrv); 7688 scsi_ulto4b(sizeof(struct scsi_per_res_in_rsrv_data), 7689 res->header.length); 7690 header_only = 0; 7691 } else { 7692 tmp_len = sizeof(struct scsi_per_res_in_header); 7693 scsi_ulto4b(0, res->header.length); 7694 header_only = 1; 7695 } 7696 7697 /* 7698 * We had to drop the lock to allocate our buffer, which 7699 * leaves time for someone to come in with another 7700 * persistent reservation. (That is unlikely, though, 7701 * since this should be the only persistent reservation 7702 * command active right now.) 7703 */ 7704 if (tmp_len != total_len) { 7705 mtx_unlock(&lun->lun_lock); 7706 free(ctsio->kern_data_ptr, M_CTL); 7707 printf("%s: reservation status changed, retrying\n", 7708 __func__); 7709 goto retry; 7710 } 7711 7712 /* 7713 * No reservation held, so we're done. 7714 */ 7715 if (header_only != 0) 7716 break; 7717 7718 /* 7719 * If the registration is an All Registrants type, the key 7720 * is 0, since it doesn't really matter. 7721 */ 7722 if (lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 7723 scsi_u64to8b(ctl_get_prkey(lun, lun->pr_res_idx), 7724 res->data.reservation); 7725 } 7726 res->data.scopetype = lun->pr_res_type; 7727 break; 7728 } 7729 case SPRI_RC: //report capabilities 7730 { 7731 struct scsi_per_res_cap *res_cap; 7732 uint16_t type_mask; 7733 7734 res_cap = (struct scsi_per_res_cap *)ctsio->kern_data_ptr; 7735 scsi_ulto2b(sizeof(*res_cap), res_cap->length); 7736 res_cap->flags1 = SPRI_CRH; 7737 res_cap->flags2 = SPRI_TMV | SPRI_ALLOW_5; 7738 type_mask = SPRI_TM_WR_EX_AR | 7739 SPRI_TM_EX_AC_RO | 7740 SPRI_TM_WR_EX_RO | 7741 SPRI_TM_EX_AC | 7742 SPRI_TM_WR_EX | 7743 SPRI_TM_EX_AC_AR; 7744 scsi_ulto2b(type_mask, res_cap->type_mask); 7745 break; 7746 } 7747 case SPRI_RS: { // read full status 7748 struct scsi_per_res_in_full *res_status; 7749 struct scsi_per_res_in_full_desc *res_desc; 7750 struct ctl_port *port; 7751 int i, len; 7752 7753 res_status = (struct scsi_per_res_in_full*)ctsio->kern_data_ptr; 7754 7755 /* 7756 * We had to drop the lock to allocate our buffer, which 7757 * leaves time for someone to come in with another 7758 * persistent reservation. (That is unlikely, though, 7759 * since this should be the only persistent reservation 7760 * command active right now.) 7761 */ 7762 if (total_len < (sizeof(struct scsi_per_res_in_header) + 7763 (sizeof(struct scsi_per_res_in_full_desc) + 256) * 7764 lun->pr_key_count)){ 7765 mtx_unlock(&lun->lun_lock); 7766 free(ctsio->kern_data_ptr, M_CTL); 7767 printf("%s: reservation length changed, retrying\n", 7768 __func__); 7769 goto retry; 7770 } 7771 7772 scsi_ulto4b(lun->pr_generation, res_status->header.generation); 7773 7774 res_desc = &res_status->desc[0]; 7775 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7776 if ((key = ctl_get_prkey(lun, i)) == 0) 7777 continue; 7778 7779 scsi_u64to8b(key, res_desc->res_key.key); 7780 if ((lun->flags & CTL_LUN_PR_RESERVED) && 7781 (lun->pr_res_idx == i || 7782 lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS)) { 7783 res_desc->flags = SPRI_FULL_R_HOLDER; 7784 res_desc->scopetype = lun->pr_res_type; 7785 } 7786 scsi_ulto2b(i / CTL_MAX_INIT_PER_PORT, 7787 res_desc->rel_trgt_port_id); 7788 len = 0; 7789 port = softc->ctl_ports[i / CTL_MAX_INIT_PER_PORT]; 7790 if (port != NULL) 7791 len = ctl_create_iid(port, 7792 i % CTL_MAX_INIT_PER_PORT, 7793 res_desc->transport_id); 7794 scsi_ulto4b(len, res_desc->additional_length); 7795 res_desc = (struct scsi_per_res_in_full_desc *) 7796 &res_desc->transport_id[len]; 7797 } 7798 scsi_ulto4b((uint8_t *)res_desc - (uint8_t *)&res_status->desc[0], 7799 res_status->header.length); 7800 break; 7801 } 7802 default: 7803 panic("%s: Invalid PR type %#x", __func__, cdb->action); 7804 } 7805 mtx_unlock(&lun->lun_lock); 7806 7807 ctl_set_success(ctsio); 7808 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 7809 ctsio->be_move_done = ctl_config_move_done; 7810 ctl_datamove((union ctl_io *)ctsio); 7811 return (CTL_RETVAL_COMPLETE); 7812} 7813 7814/* 7815 * Returns 0 if ctl_persistent_reserve_out() should continue, non-zero if 7816 * it should return. 7817 */ 7818static int 7819ctl_pro_preempt(struct ctl_softc *softc, struct ctl_lun *lun, uint64_t res_key, 7820 uint64_t sa_res_key, uint8_t type, uint32_t residx, 7821 struct ctl_scsiio *ctsio, struct scsi_per_res_out *cdb, 7822 struct scsi_per_res_out_parms* param) 7823{ 7824 union ctl_ha_msg persis_io; 7825 int i; 7826 7827 mtx_lock(&lun->lun_lock); 7828 if (sa_res_key == 0) { 7829 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 7830 /* validate scope and type */ 7831 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7832 SPR_LU_SCOPE) { 7833 mtx_unlock(&lun->lun_lock); 7834 ctl_set_invalid_field(/*ctsio*/ ctsio, 7835 /*sks_valid*/ 1, 7836 /*command*/ 1, 7837 /*field*/ 2, 7838 /*bit_valid*/ 1, 7839 /*bit*/ 4); 7840 ctl_done((union ctl_io *)ctsio); 7841 return (1); 7842 } 7843 7844 if (type>8 || type==2 || type==4 || type==0) { 7845 mtx_unlock(&lun->lun_lock); 7846 ctl_set_invalid_field(/*ctsio*/ ctsio, 7847 /*sks_valid*/ 1, 7848 /*command*/ 1, 7849 /*field*/ 2, 7850 /*bit_valid*/ 1, 7851 /*bit*/ 0); 7852 ctl_done((union ctl_io *)ctsio); 7853 return (1); 7854 } 7855 7856 /* 7857 * Unregister everybody else and build UA for 7858 * them 7859 */ 7860 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 7861 if (i == residx || ctl_get_prkey(lun, i) == 0) 7862 continue; 7863 7864 ctl_clr_prkey(lun, i); 7865 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7866 } 7867 lun->pr_key_count = 1; 7868 lun->pr_res_type = type; 7869 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 7870 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 7871 lun->pr_res_idx = residx; 7872 lun->pr_generation++; 7873 mtx_unlock(&lun->lun_lock); 7874 7875 /* send msg to other side */ 7876 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7877 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7878 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7879 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7880 persis_io.pr.pr_info.res_type = type; 7881 memcpy(persis_io.pr.pr_info.sa_res_key, 7882 param->serv_act_res_key, 7883 sizeof(param->serv_act_res_key)); 7884 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7885 sizeof(persis_io.pr), M_WAITOK); 7886 } else { 7887 /* not all registrants */ 7888 mtx_unlock(&lun->lun_lock); 7889 free(ctsio->kern_data_ptr, M_CTL); 7890 ctl_set_invalid_field(ctsio, 7891 /*sks_valid*/ 1, 7892 /*command*/ 0, 7893 /*field*/ 8, 7894 /*bit_valid*/ 0, 7895 /*bit*/ 0); 7896 ctl_done((union ctl_io *)ctsio); 7897 return (1); 7898 } 7899 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 7900 || !(lun->flags & CTL_LUN_PR_RESERVED)) { 7901 int found = 0; 7902 7903 if (res_key == sa_res_key) { 7904 /* special case */ 7905 /* 7906 * The spec implies this is not good but doesn't 7907 * say what to do. There are two choices either 7908 * generate a res conflict or check condition 7909 * with illegal field in parameter data. Since 7910 * that is what is done when the sa_res_key is 7911 * zero I'll take that approach since this has 7912 * to do with the sa_res_key. 7913 */ 7914 mtx_unlock(&lun->lun_lock); 7915 free(ctsio->kern_data_ptr, M_CTL); 7916 ctl_set_invalid_field(ctsio, 7917 /*sks_valid*/ 1, 7918 /*command*/ 0, 7919 /*field*/ 8, 7920 /*bit_valid*/ 0, 7921 /*bit*/ 0); 7922 ctl_done((union ctl_io *)ctsio); 7923 return (1); 7924 } 7925 7926 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 7927 if (ctl_get_prkey(lun, i) != sa_res_key) 7928 continue; 7929 7930 found = 1; 7931 ctl_clr_prkey(lun, i); 7932 lun->pr_key_count--; 7933 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 7934 } 7935 if (!found) { 7936 mtx_unlock(&lun->lun_lock); 7937 free(ctsio->kern_data_ptr, M_CTL); 7938 ctl_set_reservation_conflict(ctsio); 7939 ctl_done((union ctl_io *)ctsio); 7940 return (CTL_RETVAL_COMPLETE); 7941 } 7942 lun->pr_generation++; 7943 mtx_unlock(&lun->lun_lock); 7944 7945 /* send msg to other side */ 7946 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 7947 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 7948 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 7949 persis_io.pr.pr_info.residx = lun->pr_res_idx; 7950 persis_io.pr.pr_info.res_type = type; 7951 memcpy(persis_io.pr.pr_info.sa_res_key, 7952 param->serv_act_res_key, 7953 sizeof(param->serv_act_res_key)); 7954 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 7955 sizeof(persis_io.pr), M_WAITOK); 7956 } else { 7957 /* Reserved but not all registrants */ 7958 /* sa_res_key is res holder */ 7959 if (sa_res_key == ctl_get_prkey(lun, lun->pr_res_idx)) { 7960 /* validate scope and type */ 7961 if ((cdb->scope_type & SPR_SCOPE_MASK) != 7962 SPR_LU_SCOPE) { 7963 mtx_unlock(&lun->lun_lock); 7964 ctl_set_invalid_field(/*ctsio*/ ctsio, 7965 /*sks_valid*/ 1, 7966 /*command*/ 1, 7967 /*field*/ 2, 7968 /*bit_valid*/ 1, 7969 /*bit*/ 4); 7970 ctl_done((union ctl_io *)ctsio); 7971 return (1); 7972 } 7973 7974 if (type>8 || type==2 || type==4 || type==0) { 7975 mtx_unlock(&lun->lun_lock); 7976 ctl_set_invalid_field(/*ctsio*/ ctsio, 7977 /*sks_valid*/ 1, 7978 /*command*/ 1, 7979 /*field*/ 2, 7980 /*bit_valid*/ 1, 7981 /*bit*/ 0); 7982 ctl_done((union ctl_io *)ctsio); 7983 return (1); 7984 } 7985 7986 /* 7987 * Do the following: 7988 * if sa_res_key != res_key remove all 7989 * registrants w/sa_res_key and generate UA 7990 * for these registrants(Registrations 7991 * Preempted) if it wasn't an exclusive 7992 * reservation generate UA(Reservations 7993 * Preempted) for all other registered nexuses 7994 * if the type has changed. Establish the new 7995 * reservation and holder. If res_key and 7996 * sa_res_key are the same do the above 7997 * except don't unregister the res holder. 7998 */ 7999 8000 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 8001 if (i == residx || ctl_get_prkey(lun, i) == 0) 8002 continue; 8003 8004 if (sa_res_key == ctl_get_prkey(lun, i)) { 8005 ctl_clr_prkey(lun, i); 8006 lun->pr_key_count--; 8007 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8008 } else if (type != lun->pr_res_type && 8009 (lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8010 lun->pr_res_type == SPR_TYPE_EX_AC_RO)) { 8011 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8012 } 8013 } 8014 lun->pr_res_type = type; 8015 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8016 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8017 lun->pr_res_idx = residx; 8018 else 8019 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8020 lun->pr_generation++; 8021 mtx_unlock(&lun->lun_lock); 8022 8023 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8024 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8025 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8026 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8027 persis_io.pr.pr_info.res_type = type; 8028 memcpy(persis_io.pr.pr_info.sa_res_key, 8029 param->serv_act_res_key, 8030 sizeof(param->serv_act_res_key)); 8031 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8032 sizeof(persis_io.pr), M_WAITOK); 8033 } else { 8034 /* 8035 * sa_res_key is not the res holder just 8036 * remove registrants 8037 */ 8038 int found=0; 8039 8040 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8041 if (sa_res_key != ctl_get_prkey(lun, i)) 8042 continue; 8043 8044 found = 1; 8045 ctl_clr_prkey(lun, i); 8046 lun->pr_key_count--; 8047 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8048 } 8049 8050 if (!found) { 8051 mtx_unlock(&lun->lun_lock); 8052 free(ctsio->kern_data_ptr, M_CTL); 8053 ctl_set_reservation_conflict(ctsio); 8054 ctl_done((union ctl_io *)ctsio); 8055 return (1); 8056 } 8057 lun->pr_generation++; 8058 mtx_unlock(&lun->lun_lock); 8059 8060 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8061 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8062 persis_io.pr.pr_info.action = CTL_PR_PREEMPT; 8063 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8064 persis_io.pr.pr_info.res_type = type; 8065 memcpy(persis_io.pr.pr_info.sa_res_key, 8066 param->serv_act_res_key, 8067 sizeof(param->serv_act_res_key)); 8068 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8069 sizeof(persis_io.pr), M_WAITOK); 8070 } 8071 } 8072 return (0); 8073} 8074 8075static void 8076ctl_pro_preempt_other(struct ctl_lun *lun, union ctl_ha_msg *msg) 8077{ 8078 uint64_t sa_res_key; 8079 int i; 8080 8081 sa_res_key = scsi_8btou64(msg->pr.pr_info.sa_res_key); 8082 8083 if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS 8084 || lun->pr_res_idx == CTL_PR_NO_RESERVATION 8085 || sa_res_key != ctl_get_prkey(lun, lun->pr_res_idx)) { 8086 if (sa_res_key == 0) { 8087 /* 8088 * Unregister everybody else and build UA for 8089 * them 8090 */ 8091 for(i = 0; i < CTL_MAX_INITIATORS; i++) { 8092 if (i == msg->pr.pr_info.residx || 8093 ctl_get_prkey(lun, i) == 0) 8094 continue; 8095 8096 ctl_clr_prkey(lun, i); 8097 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8098 } 8099 8100 lun->pr_key_count = 1; 8101 lun->pr_res_type = msg->pr.pr_info.res_type; 8102 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8103 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8104 lun->pr_res_idx = msg->pr.pr_info.residx; 8105 } else { 8106 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8107 if (sa_res_key == ctl_get_prkey(lun, i)) 8108 continue; 8109 8110 ctl_clr_prkey(lun, i); 8111 lun->pr_key_count--; 8112 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8113 } 8114 } 8115 } else { 8116 for (i = 0; i < CTL_MAX_INITIATORS; i++) { 8117 if (i == msg->pr.pr_info.residx || 8118 ctl_get_prkey(lun, i) == 0) 8119 continue; 8120 8121 if (sa_res_key == ctl_get_prkey(lun, i)) { 8122 ctl_clr_prkey(lun, i); 8123 lun->pr_key_count--; 8124 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8125 } else if (msg->pr.pr_info.res_type != lun->pr_res_type 8126 && (lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8127 lun->pr_res_type == SPR_TYPE_EX_AC_RO)) { 8128 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8129 } 8130 } 8131 lun->pr_res_type = msg->pr.pr_info.res_type; 8132 if (lun->pr_res_type != SPR_TYPE_WR_EX_AR && 8133 lun->pr_res_type != SPR_TYPE_EX_AC_AR) 8134 lun->pr_res_idx = msg->pr.pr_info.residx; 8135 else 8136 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8137 } 8138 lun->pr_generation++; 8139 8140} 8141 8142 8143int 8144ctl_persistent_reserve_out(struct ctl_scsiio *ctsio) 8145{ 8146 struct ctl_softc *softc = CTL_SOFTC(ctsio); 8147 struct ctl_lun *lun = CTL_LUN(ctsio); 8148 int retval; 8149 u_int32_t param_len; 8150 struct scsi_per_res_out *cdb; 8151 struct scsi_per_res_out_parms* param; 8152 uint32_t residx; 8153 uint64_t res_key, sa_res_key, key; 8154 uint8_t type; 8155 union ctl_ha_msg persis_io; 8156 int i; 8157 8158 CTL_DEBUG_PRINT(("ctl_persistent_reserve_out\n")); 8159 8160 cdb = (struct scsi_per_res_out *)ctsio->cdb; 8161 retval = CTL_RETVAL_COMPLETE; 8162 8163 /* 8164 * We only support whole-LUN scope. The scope & type are ignored for 8165 * register, register and ignore existing key and clear. 8166 * We sometimes ignore scope and type on preempts too!! 8167 * Verify reservation type here as well. 8168 */ 8169 type = cdb->scope_type & SPR_TYPE_MASK; 8170 if ((cdb->action == SPRO_RESERVE) 8171 || (cdb->action == SPRO_RELEASE)) { 8172 if ((cdb->scope_type & SPR_SCOPE_MASK) != SPR_LU_SCOPE) { 8173 ctl_set_invalid_field(/*ctsio*/ ctsio, 8174 /*sks_valid*/ 1, 8175 /*command*/ 1, 8176 /*field*/ 2, 8177 /*bit_valid*/ 1, 8178 /*bit*/ 4); 8179 ctl_done((union ctl_io *)ctsio); 8180 return (CTL_RETVAL_COMPLETE); 8181 } 8182 8183 if (type>8 || type==2 || type==4 || type==0) { 8184 ctl_set_invalid_field(/*ctsio*/ ctsio, 8185 /*sks_valid*/ 1, 8186 /*command*/ 1, 8187 /*field*/ 2, 8188 /*bit_valid*/ 1, 8189 /*bit*/ 0); 8190 ctl_done((union ctl_io *)ctsio); 8191 return (CTL_RETVAL_COMPLETE); 8192 } 8193 } 8194 8195 param_len = scsi_4btoul(cdb->length); 8196 8197 if ((ctsio->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0) { 8198 ctsio->kern_data_ptr = malloc(param_len, M_CTL, M_WAITOK); 8199 ctsio->kern_data_len = param_len; 8200 ctsio->kern_total_len = param_len; 8201 ctsio->kern_rel_offset = 0; 8202 ctsio->kern_sg_entries = 0; 8203 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 8204 ctsio->be_move_done = ctl_config_move_done; 8205 ctl_datamove((union ctl_io *)ctsio); 8206 8207 return (CTL_RETVAL_COMPLETE); 8208 } 8209 8210 param = (struct scsi_per_res_out_parms *)ctsio->kern_data_ptr; 8211 8212 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 8213 res_key = scsi_8btou64(param->res_key.key); 8214 sa_res_key = scsi_8btou64(param->serv_act_res_key); 8215 8216 /* 8217 * Validate the reservation key here except for SPRO_REG_IGNO 8218 * This must be done for all other service actions 8219 */ 8220 if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REG_IGNO) { 8221 mtx_lock(&lun->lun_lock); 8222 if ((key = ctl_get_prkey(lun, residx)) != 0) { 8223 if (res_key != key) { 8224 /* 8225 * The current key passed in doesn't match 8226 * the one the initiator previously 8227 * registered. 8228 */ 8229 mtx_unlock(&lun->lun_lock); 8230 free(ctsio->kern_data_ptr, M_CTL); 8231 ctl_set_reservation_conflict(ctsio); 8232 ctl_done((union ctl_io *)ctsio); 8233 return (CTL_RETVAL_COMPLETE); 8234 } 8235 } else if ((cdb->action & SPRO_ACTION_MASK) != SPRO_REGISTER) { 8236 /* 8237 * We are not registered 8238 */ 8239 mtx_unlock(&lun->lun_lock); 8240 free(ctsio->kern_data_ptr, M_CTL); 8241 ctl_set_reservation_conflict(ctsio); 8242 ctl_done((union ctl_io *)ctsio); 8243 return (CTL_RETVAL_COMPLETE); 8244 } else if (res_key != 0) { 8245 /* 8246 * We are not registered and trying to register but 8247 * the register key isn't zero. 8248 */ 8249 mtx_unlock(&lun->lun_lock); 8250 free(ctsio->kern_data_ptr, M_CTL); 8251 ctl_set_reservation_conflict(ctsio); 8252 ctl_done((union ctl_io *)ctsio); 8253 return (CTL_RETVAL_COMPLETE); 8254 } 8255 mtx_unlock(&lun->lun_lock); 8256 } 8257 8258 switch (cdb->action & SPRO_ACTION_MASK) { 8259 case SPRO_REGISTER: 8260 case SPRO_REG_IGNO: { 8261 8262#if 0 8263 printf("Registration received\n"); 8264#endif 8265 8266 /* 8267 * We don't support any of these options, as we report in 8268 * the read capabilities request (see 8269 * ctl_persistent_reserve_in(), above). 8270 */ 8271 if ((param->flags & SPR_SPEC_I_PT) 8272 || (param->flags & SPR_ALL_TG_PT) 8273 || (param->flags & SPR_APTPL)) { 8274 int bit_ptr; 8275 8276 if (param->flags & SPR_APTPL) 8277 bit_ptr = 0; 8278 else if (param->flags & SPR_ALL_TG_PT) 8279 bit_ptr = 2; 8280 else /* SPR_SPEC_I_PT */ 8281 bit_ptr = 3; 8282 8283 free(ctsio->kern_data_ptr, M_CTL); 8284 ctl_set_invalid_field(ctsio, 8285 /*sks_valid*/ 1, 8286 /*command*/ 0, 8287 /*field*/ 20, 8288 /*bit_valid*/ 1, 8289 /*bit*/ bit_ptr); 8290 ctl_done((union ctl_io *)ctsio); 8291 return (CTL_RETVAL_COMPLETE); 8292 } 8293 8294 mtx_lock(&lun->lun_lock); 8295 8296 /* 8297 * The initiator wants to clear the 8298 * key/unregister. 8299 */ 8300 if (sa_res_key == 0) { 8301 if ((res_key == 0 8302 && (cdb->action & SPRO_ACTION_MASK) == SPRO_REGISTER) 8303 || ((cdb->action & SPRO_ACTION_MASK) == SPRO_REG_IGNO 8304 && ctl_get_prkey(lun, residx) == 0)) { 8305 mtx_unlock(&lun->lun_lock); 8306 goto done; 8307 } 8308 8309 ctl_clr_prkey(lun, residx); 8310 lun->pr_key_count--; 8311 8312 if (residx == lun->pr_res_idx) { 8313 lun->flags &= ~CTL_LUN_PR_RESERVED; 8314 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8315 8316 if ((lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8317 lun->pr_res_type == SPR_TYPE_EX_AC_RO) && 8318 lun->pr_key_count) { 8319 /* 8320 * If the reservation is a registrants 8321 * only type we need to generate a UA 8322 * for other registered inits. The 8323 * sense code should be RESERVATIONS 8324 * RELEASED 8325 */ 8326 8327 for (i = softc->init_min; i < softc->init_max; i++){ 8328 if (ctl_get_prkey(lun, i) == 0) 8329 continue; 8330 ctl_est_ua(lun, i, 8331 CTL_UA_RES_RELEASE); 8332 } 8333 } 8334 lun->pr_res_type = 0; 8335 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8336 if (lun->pr_key_count==0) { 8337 lun->flags &= ~CTL_LUN_PR_RESERVED; 8338 lun->pr_res_type = 0; 8339 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8340 } 8341 } 8342 lun->pr_generation++; 8343 mtx_unlock(&lun->lun_lock); 8344 8345 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8346 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8347 persis_io.pr.pr_info.action = CTL_PR_UNREG_KEY; 8348 persis_io.pr.pr_info.residx = residx; 8349 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8350 sizeof(persis_io.pr), M_WAITOK); 8351 } else /* sa_res_key != 0 */ { 8352 8353 /* 8354 * If we aren't registered currently then increment 8355 * the key count and set the registered flag. 8356 */ 8357 ctl_alloc_prkey(lun, residx); 8358 if (ctl_get_prkey(lun, residx) == 0) 8359 lun->pr_key_count++; 8360 ctl_set_prkey(lun, residx, sa_res_key); 8361 lun->pr_generation++; 8362 mtx_unlock(&lun->lun_lock); 8363 8364 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8365 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8366 persis_io.pr.pr_info.action = CTL_PR_REG_KEY; 8367 persis_io.pr.pr_info.residx = residx; 8368 memcpy(persis_io.pr.pr_info.sa_res_key, 8369 param->serv_act_res_key, 8370 sizeof(param->serv_act_res_key)); 8371 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8372 sizeof(persis_io.pr), M_WAITOK); 8373 } 8374 8375 break; 8376 } 8377 case SPRO_RESERVE: 8378#if 0 8379 printf("Reserve executed type %d\n", type); 8380#endif 8381 mtx_lock(&lun->lun_lock); 8382 if (lun->flags & CTL_LUN_PR_RESERVED) { 8383 /* 8384 * if this isn't the reservation holder and it's 8385 * not a "all registrants" type or if the type is 8386 * different then we have a conflict 8387 */ 8388 if ((lun->pr_res_idx != residx 8389 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) 8390 || lun->pr_res_type != type) { 8391 mtx_unlock(&lun->lun_lock); 8392 free(ctsio->kern_data_ptr, M_CTL); 8393 ctl_set_reservation_conflict(ctsio); 8394 ctl_done((union ctl_io *)ctsio); 8395 return (CTL_RETVAL_COMPLETE); 8396 } 8397 mtx_unlock(&lun->lun_lock); 8398 } else /* create a reservation */ { 8399 /* 8400 * If it's not an "all registrants" type record 8401 * reservation holder 8402 */ 8403 if (type != SPR_TYPE_WR_EX_AR 8404 && type != SPR_TYPE_EX_AC_AR) 8405 lun->pr_res_idx = residx; /* Res holder */ 8406 else 8407 lun->pr_res_idx = CTL_PR_ALL_REGISTRANTS; 8408 8409 lun->flags |= CTL_LUN_PR_RESERVED; 8410 lun->pr_res_type = type; 8411 8412 mtx_unlock(&lun->lun_lock); 8413 8414 /* send msg to other side */ 8415 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8416 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8417 persis_io.pr.pr_info.action = CTL_PR_RESERVE; 8418 persis_io.pr.pr_info.residx = lun->pr_res_idx; 8419 persis_io.pr.pr_info.res_type = type; 8420 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8421 sizeof(persis_io.pr), M_WAITOK); 8422 } 8423 break; 8424 8425 case SPRO_RELEASE: 8426 mtx_lock(&lun->lun_lock); 8427 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0) { 8428 /* No reservation exists return good status */ 8429 mtx_unlock(&lun->lun_lock); 8430 goto done; 8431 } 8432 /* 8433 * Is this nexus a reservation holder? 8434 */ 8435 if (lun->pr_res_idx != residx 8436 && lun->pr_res_idx != CTL_PR_ALL_REGISTRANTS) { 8437 /* 8438 * not a res holder return good status but 8439 * do nothing 8440 */ 8441 mtx_unlock(&lun->lun_lock); 8442 goto done; 8443 } 8444 8445 if (lun->pr_res_type != type) { 8446 mtx_unlock(&lun->lun_lock); 8447 free(ctsio->kern_data_ptr, M_CTL); 8448 ctl_set_illegal_pr_release(ctsio); 8449 ctl_done((union ctl_io *)ctsio); 8450 return (CTL_RETVAL_COMPLETE); 8451 } 8452 8453 /* okay to release */ 8454 lun->flags &= ~CTL_LUN_PR_RESERVED; 8455 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8456 lun->pr_res_type = 0; 8457 8458 /* 8459 * If this isn't an exclusive access reservation and NUAR 8460 * is not set, generate UA for all other registrants. 8461 */ 8462 if (type != SPR_TYPE_EX_AC && type != SPR_TYPE_WR_EX && 8463 (lun->MODE_CTRL.queue_flags & SCP_NUAR) == 0) { 8464 for (i = softc->init_min; i < softc->init_max; i++) { 8465 if (i == residx || ctl_get_prkey(lun, i) == 0) 8466 continue; 8467 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8468 } 8469 } 8470 mtx_unlock(&lun->lun_lock); 8471 8472 /* Send msg to other side */ 8473 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8474 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8475 persis_io.pr.pr_info.action = CTL_PR_RELEASE; 8476 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8477 sizeof(persis_io.pr), M_WAITOK); 8478 break; 8479 8480 case SPRO_CLEAR: 8481 /* send msg to other side */ 8482 8483 mtx_lock(&lun->lun_lock); 8484 lun->flags &= ~CTL_LUN_PR_RESERVED; 8485 lun->pr_res_type = 0; 8486 lun->pr_key_count = 0; 8487 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8488 8489 ctl_clr_prkey(lun, residx); 8490 for (i = 0; i < CTL_MAX_INITIATORS; i++) 8491 if (ctl_get_prkey(lun, i) != 0) { 8492 ctl_clr_prkey(lun, i); 8493 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8494 } 8495 lun->pr_generation++; 8496 mtx_unlock(&lun->lun_lock); 8497 8498 persis_io.hdr.nexus = ctsio->io_hdr.nexus; 8499 persis_io.hdr.msg_type = CTL_MSG_PERS_ACTION; 8500 persis_io.pr.pr_info.action = CTL_PR_CLEAR; 8501 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &persis_io, 8502 sizeof(persis_io.pr), M_WAITOK); 8503 break; 8504 8505 case SPRO_PREEMPT: 8506 case SPRO_PRE_ABO: { 8507 int nretval; 8508 8509 nretval = ctl_pro_preempt(softc, lun, res_key, sa_res_key, type, 8510 residx, ctsio, cdb, param); 8511 if (nretval != 0) 8512 return (CTL_RETVAL_COMPLETE); 8513 break; 8514 } 8515 default: 8516 panic("%s: Invalid PR type %#x", __func__, cdb->action); 8517 } 8518 8519done: 8520 free(ctsio->kern_data_ptr, M_CTL); 8521 ctl_set_success(ctsio); 8522 ctl_done((union ctl_io *)ctsio); 8523 8524 return (retval); 8525} 8526 8527/* 8528 * This routine is for handling a message from the other SC pertaining to 8529 * persistent reserve out. All the error checking will have been done 8530 * so only perorming the action need be done here to keep the two 8531 * in sync. 8532 */ 8533static void 8534ctl_hndl_per_res_out_on_other_sc(union ctl_io *io) 8535{ 8536 struct ctl_softc *softc = CTL_SOFTC(io); 8537 union ctl_ha_msg *msg = (union ctl_ha_msg *)&io->presio.pr_msg; 8538 struct ctl_lun *lun; 8539 int i; 8540 uint32_t residx, targ_lun; 8541 8542 targ_lun = msg->hdr.nexus.targ_mapped_lun; 8543 mtx_lock(&softc->ctl_lock); 8544 if (targ_lun >= ctl_max_luns || 8545 (lun = softc->ctl_luns[targ_lun]) == NULL) { 8546 mtx_unlock(&softc->ctl_lock); 8547 return; 8548 } 8549 mtx_lock(&lun->lun_lock); 8550 mtx_unlock(&softc->ctl_lock); 8551 if (lun->flags & CTL_LUN_DISABLED) { 8552 mtx_unlock(&lun->lun_lock); 8553 return; 8554 } 8555 residx = ctl_get_initindex(&msg->hdr.nexus); 8556 switch(msg->pr.pr_info.action) { 8557 case CTL_PR_REG_KEY: 8558 ctl_alloc_prkey(lun, msg->pr.pr_info.residx); 8559 if (ctl_get_prkey(lun, msg->pr.pr_info.residx) == 0) 8560 lun->pr_key_count++; 8561 ctl_set_prkey(lun, msg->pr.pr_info.residx, 8562 scsi_8btou64(msg->pr.pr_info.sa_res_key)); 8563 lun->pr_generation++; 8564 break; 8565 8566 case CTL_PR_UNREG_KEY: 8567 ctl_clr_prkey(lun, msg->pr.pr_info.residx); 8568 lun->pr_key_count--; 8569 8570 /* XXX Need to see if the reservation has been released */ 8571 /* if so do we need to generate UA? */ 8572 if (msg->pr.pr_info.residx == lun->pr_res_idx) { 8573 lun->flags &= ~CTL_LUN_PR_RESERVED; 8574 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8575 8576 if ((lun->pr_res_type == SPR_TYPE_WR_EX_RO || 8577 lun->pr_res_type == SPR_TYPE_EX_AC_RO) && 8578 lun->pr_key_count) { 8579 /* 8580 * If the reservation is a registrants 8581 * only type we need to generate a UA 8582 * for other registered inits. The 8583 * sense code should be RESERVATIONS 8584 * RELEASED 8585 */ 8586 8587 for (i = softc->init_min; i < softc->init_max; i++) { 8588 if (ctl_get_prkey(lun, i) == 0) 8589 continue; 8590 8591 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8592 } 8593 } 8594 lun->pr_res_type = 0; 8595 } else if (lun->pr_res_idx == CTL_PR_ALL_REGISTRANTS) { 8596 if (lun->pr_key_count==0) { 8597 lun->flags &= ~CTL_LUN_PR_RESERVED; 8598 lun->pr_res_type = 0; 8599 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8600 } 8601 } 8602 lun->pr_generation++; 8603 break; 8604 8605 case CTL_PR_RESERVE: 8606 lun->flags |= CTL_LUN_PR_RESERVED; 8607 lun->pr_res_type = msg->pr.pr_info.res_type; 8608 lun->pr_res_idx = msg->pr.pr_info.residx; 8609 8610 break; 8611 8612 case CTL_PR_RELEASE: 8613 /* 8614 * If this isn't an exclusive access reservation and NUAR 8615 * is not set, generate UA for all other registrants. 8616 */ 8617 if (lun->pr_res_type != SPR_TYPE_EX_AC && 8618 lun->pr_res_type != SPR_TYPE_WR_EX && 8619 (lun->MODE_CTRL.queue_flags & SCP_NUAR) == 0) { 8620 for (i = softc->init_min; i < softc->init_max; i++) 8621 if (i == residx || ctl_get_prkey(lun, i) == 0) 8622 continue; 8623 ctl_est_ua(lun, i, CTL_UA_RES_RELEASE); 8624 } 8625 8626 lun->flags &= ~CTL_LUN_PR_RESERVED; 8627 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8628 lun->pr_res_type = 0; 8629 break; 8630 8631 case CTL_PR_PREEMPT: 8632 ctl_pro_preempt_other(lun, msg); 8633 break; 8634 case CTL_PR_CLEAR: 8635 lun->flags &= ~CTL_LUN_PR_RESERVED; 8636 lun->pr_res_type = 0; 8637 lun->pr_key_count = 0; 8638 lun->pr_res_idx = CTL_PR_NO_RESERVATION; 8639 8640 for (i=0; i < CTL_MAX_INITIATORS; i++) { 8641 if (ctl_get_prkey(lun, i) == 0) 8642 continue; 8643 ctl_clr_prkey(lun, i); 8644 ctl_est_ua(lun, i, CTL_UA_REG_PREEMPT); 8645 } 8646 lun->pr_generation++; 8647 break; 8648 } 8649 8650 mtx_unlock(&lun->lun_lock); 8651} 8652 8653int 8654ctl_read_write(struct ctl_scsiio *ctsio) 8655{ 8656 struct ctl_lun *lun = CTL_LUN(ctsio); 8657 struct ctl_lba_len_flags *lbalen; 8658 uint64_t lba; 8659 uint32_t num_blocks; 8660 int flags, retval; 8661 int isread; 8662 8663 CTL_DEBUG_PRINT(("ctl_read_write: command: %#x\n", ctsio->cdb[0])); 8664 8665 flags = 0; 8666 isread = ctsio->cdb[0] == READ_6 || ctsio->cdb[0] == READ_10 8667 || ctsio->cdb[0] == READ_12 || ctsio->cdb[0] == READ_16; 8668 switch (ctsio->cdb[0]) { 8669 case READ_6: 8670 case WRITE_6: { 8671 struct scsi_rw_6 *cdb; 8672 8673 cdb = (struct scsi_rw_6 *)ctsio->cdb; 8674 8675 lba = scsi_3btoul(cdb->addr); 8676 /* only 5 bits are valid in the most significant address byte */ 8677 lba &= 0x1fffff; 8678 num_blocks = cdb->length; 8679 /* 8680 * This is correct according to SBC-2. 8681 */ 8682 if (num_blocks == 0) 8683 num_blocks = 256; 8684 break; 8685 } 8686 case READ_10: 8687 case WRITE_10: { 8688 struct scsi_rw_10 *cdb; 8689 8690 cdb = (struct scsi_rw_10 *)ctsio->cdb; 8691 if (cdb->byte2 & SRW10_FUA) 8692 flags |= CTL_LLF_FUA; 8693 if (cdb->byte2 & SRW10_DPO) 8694 flags |= CTL_LLF_DPO; 8695 lba = scsi_4btoul(cdb->addr); 8696 num_blocks = scsi_2btoul(cdb->length); 8697 break; 8698 } 8699 case WRITE_VERIFY_10: { 8700 struct scsi_write_verify_10 *cdb; 8701 8702 cdb = (struct scsi_write_verify_10 *)ctsio->cdb; 8703 flags |= CTL_LLF_FUA; 8704 if (cdb->byte2 & SWV_DPO) 8705 flags |= CTL_LLF_DPO; 8706 lba = scsi_4btoul(cdb->addr); 8707 num_blocks = scsi_2btoul(cdb->length); 8708 break; 8709 } 8710 case READ_12: 8711 case WRITE_12: { 8712 struct scsi_rw_12 *cdb; 8713 8714 cdb = (struct scsi_rw_12 *)ctsio->cdb; 8715 if (cdb->byte2 & SRW12_FUA) 8716 flags |= CTL_LLF_FUA; 8717 if (cdb->byte2 & SRW12_DPO) 8718 flags |= CTL_LLF_DPO; 8719 lba = scsi_4btoul(cdb->addr); 8720 num_blocks = scsi_4btoul(cdb->length); 8721 break; 8722 } 8723 case WRITE_VERIFY_12: { 8724 struct scsi_write_verify_12 *cdb; 8725 8726 cdb = (struct scsi_write_verify_12 *)ctsio->cdb; 8727 flags |= CTL_LLF_FUA; 8728 if (cdb->byte2 & SWV_DPO) 8729 flags |= CTL_LLF_DPO; 8730 lba = scsi_4btoul(cdb->addr); 8731 num_blocks = scsi_4btoul(cdb->length); 8732 break; 8733 } 8734 case READ_16: 8735 case WRITE_16: { 8736 struct scsi_rw_16 *cdb; 8737 8738 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8739 if (cdb->byte2 & SRW12_FUA) 8740 flags |= CTL_LLF_FUA; 8741 if (cdb->byte2 & SRW12_DPO) 8742 flags |= CTL_LLF_DPO; 8743 lba = scsi_8btou64(cdb->addr); 8744 num_blocks = scsi_4btoul(cdb->length); 8745 break; 8746 } 8747 case WRITE_ATOMIC_16: { 8748 struct scsi_write_atomic_16 *cdb; 8749 8750 if (lun->be_lun->atomicblock == 0) { 8751 ctl_set_invalid_opcode(ctsio); 8752 ctl_done((union ctl_io *)ctsio); 8753 return (CTL_RETVAL_COMPLETE); 8754 } 8755 8756 cdb = (struct scsi_write_atomic_16 *)ctsio->cdb; 8757 if (cdb->byte2 & SRW12_FUA) 8758 flags |= CTL_LLF_FUA; 8759 if (cdb->byte2 & SRW12_DPO) 8760 flags |= CTL_LLF_DPO; 8761 lba = scsi_8btou64(cdb->addr); 8762 num_blocks = scsi_2btoul(cdb->length); 8763 if (num_blocks > lun->be_lun->atomicblock) { 8764 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, 8765 /*command*/ 1, /*field*/ 12, /*bit_valid*/ 0, 8766 /*bit*/ 0); 8767 ctl_done((union ctl_io *)ctsio); 8768 return (CTL_RETVAL_COMPLETE); 8769 } 8770 break; 8771 } 8772 case WRITE_VERIFY_16: { 8773 struct scsi_write_verify_16 *cdb; 8774 8775 cdb = (struct scsi_write_verify_16 *)ctsio->cdb; 8776 flags |= CTL_LLF_FUA; 8777 if (cdb->byte2 & SWV_DPO) 8778 flags |= CTL_LLF_DPO; 8779 lba = scsi_8btou64(cdb->addr); 8780 num_blocks = scsi_4btoul(cdb->length); 8781 break; 8782 } 8783 default: 8784 /* 8785 * We got a command we don't support. This shouldn't 8786 * happen, commands should be filtered out above us. 8787 */ 8788 ctl_set_invalid_opcode(ctsio); 8789 ctl_done((union ctl_io *)ctsio); 8790 8791 return (CTL_RETVAL_COMPLETE); 8792 break; /* NOTREACHED */ 8793 } 8794 8795 /* 8796 * The first check is to make sure we're in bounds, the second 8797 * check is to catch wrap-around problems. If the lba + num blocks 8798 * is less than the lba, then we've wrapped around and the block 8799 * range is invalid anyway. 8800 */ 8801 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8802 || ((lba + num_blocks) < lba)) { 8803 ctl_set_lba_out_of_range(ctsio, 8804 MAX(lba, lun->be_lun->maxlba + 1)); 8805 ctl_done((union ctl_io *)ctsio); 8806 return (CTL_RETVAL_COMPLETE); 8807 } 8808 8809 /* 8810 * According to SBC-3, a transfer length of 0 is not an error. 8811 * Note that this cannot happen with WRITE(6) or READ(6), since 0 8812 * translates to 256 blocks for those commands. 8813 */ 8814 if (num_blocks == 0) { 8815 ctl_set_success(ctsio); 8816 ctl_done((union ctl_io *)ctsio); 8817 return (CTL_RETVAL_COMPLETE); 8818 } 8819 8820 /* Set FUA and/or DPO if caches are disabled. */ 8821 if (isread) { 8822 if ((lun->MODE_CACHING.flags1 & SCP_RCD) != 0) 8823 flags |= CTL_LLF_FUA | CTL_LLF_DPO; 8824 } else { 8825 if ((lun->MODE_CACHING.flags1 & SCP_WCE) == 0) 8826 flags |= CTL_LLF_FUA; 8827 } 8828 8829 lbalen = (struct ctl_lba_len_flags *) 8830 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8831 lbalen->lba = lba; 8832 lbalen->len = num_blocks; 8833 lbalen->flags = (isread ? CTL_LLF_READ : CTL_LLF_WRITE) | flags; 8834 8835 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 8836 ctsio->kern_rel_offset = 0; 8837 8838 CTL_DEBUG_PRINT(("ctl_read_write: calling data_submit()\n")); 8839 8840 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8841 return (retval); 8842} 8843 8844static int 8845ctl_cnw_cont(union ctl_io *io) 8846{ 8847 struct ctl_lun *lun = CTL_LUN(io); 8848 struct ctl_scsiio *ctsio; 8849 struct ctl_lba_len_flags *lbalen; 8850 int retval; 8851 8852 ctsio = &io->scsiio; 8853 ctsio->io_hdr.status = CTL_STATUS_NONE; 8854 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_CONT; 8855 lbalen = (struct ctl_lba_len_flags *) 8856 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8857 lbalen->flags &= ~CTL_LLF_COMPARE; 8858 lbalen->flags |= CTL_LLF_WRITE; 8859 8860 CTL_DEBUG_PRINT(("ctl_cnw_cont: calling data_submit()\n")); 8861 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8862 return (retval); 8863} 8864 8865int 8866ctl_cnw(struct ctl_scsiio *ctsio) 8867{ 8868 struct ctl_lun *lun = CTL_LUN(ctsio); 8869 struct ctl_lba_len_flags *lbalen; 8870 uint64_t lba; 8871 uint32_t num_blocks; 8872 int flags, retval; 8873 8874 CTL_DEBUG_PRINT(("ctl_cnw: command: %#x\n", ctsio->cdb[0])); 8875 8876 flags = 0; 8877 switch (ctsio->cdb[0]) { 8878 case COMPARE_AND_WRITE: { 8879 struct scsi_compare_and_write *cdb; 8880 8881 cdb = (struct scsi_compare_and_write *)ctsio->cdb; 8882 if (cdb->byte2 & SRW10_FUA) 8883 flags |= CTL_LLF_FUA; 8884 if (cdb->byte2 & SRW10_DPO) 8885 flags |= CTL_LLF_DPO; 8886 lba = scsi_8btou64(cdb->addr); 8887 num_blocks = cdb->length; 8888 break; 8889 } 8890 default: 8891 /* 8892 * We got a command we don't support. This shouldn't 8893 * happen, commands should be filtered out above us. 8894 */ 8895 ctl_set_invalid_opcode(ctsio); 8896 ctl_done((union ctl_io *)ctsio); 8897 8898 return (CTL_RETVAL_COMPLETE); 8899 break; /* NOTREACHED */ 8900 } 8901 8902 /* 8903 * The first check is to make sure we're in bounds, the second 8904 * check is to catch wrap-around problems. If the lba + num blocks 8905 * is less than the lba, then we've wrapped around and the block 8906 * range is invalid anyway. 8907 */ 8908 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 8909 || ((lba + num_blocks) < lba)) { 8910 ctl_set_lba_out_of_range(ctsio, 8911 MAX(lba, lun->be_lun->maxlba + 1)); 8912 ctl_done((union ctl_io *)ctsio); 8913 return (CTL_RETVAL_COMPLETE); 8914 } 8915 8916 /* 8917 * According to SBC-3, a transfer length of 0 is not an error. 8918 */ 8919 if (num_blocks == 0) { 8920 ctl_set_success(ctsio); 8921 ctl_done((union ctl_io *)ctsio); 8922 return (CTL_RETVAL_COMPLETE); 8923 } 8924 8925 /* Set FUA if write cache is disabled. */ 8926 if ((lun->MODE_CACHING.flags1 & SCP_WCE) == 0) 8927 flags |= CTL_LLF_FUA; 8928 8929 ctsio->kern_total_len = 2 * num_blocks * lun->be_lun->blocksize; 8930 ctsio->kern_rel_offset = 0; 8931 8932 /* 8933 * Set the IO_CONT flag, so that if this I/O gets passed to 8934 * ctl_data_submit_done(), it'll get passed back to 8935 * ctl_ctl_cnw_cont() for further processing. 8936 */ 8937 ctsio->io_hdr.flags |= CTL_FLAG_IO_CONT; 8938 ctsio->io_cont = ctl_cnw_cont; 8939 8940 lbalen = (struct ctl_lba_len_flags *) 8941 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 8942 lbalen->lba = lba; 8943 lbalen->len = num_blocks; 8944 lbalen->flags = CTL_LLF_COMPARE | flags; 8945 8946 CTL_DEBUG_PRINT(("ctl_cnw: calling data_submit()\n")); 8947 retval = lun->backend->data_submit((union ctl_io *)ctsio); 8948 return (retval); 8949} 8950 8951int 8952ctl_verify(struct ctl_scsiio *ctsio) 8953{ 8954 struct ctl_lun *lun = CTL_LUN(ctsio); 8955 struct ctl_lba_len_flags *lbalen; 8956 uint64_t lba; 8957 uint32_t num_blocks; 8958 int bytchk, flags; 8959 int retval; 8960 8961 CTL_DEBUG_PRINT(("ctl_verify: command: %#x\n", ctsio->cdb[0])); 8962 8963 bytchk = 0; 8964 flags = CTL_LLF_FUA; 8965 switch (ctsio->cdb[0]) { 8966 case VERIFY_10: { 8967 struct scsi_verify_10 *cdb; 8968 8969 cdb = (struct scsi_verify_10 *)ctsio->cdb; 8970 if (cdb->byte2 & SVFY_BYTCHK) 8971 bytchk = 1; 8972 if (cdb->byte2 & SVFY_DPO) 8973 flags |= CTL_LLF_DPO; 8974 lba = scsi_4btoul(cdb->addr); 8975 num_blocks = scsi_2btoul(cdb->length); 8976 break; 8977 } 8978 case VERIFY_12: { 8979 struct scsi_verify_12 *cdb; 8980 8981 cdb = (struct scsi_verify_12 *)ctsio->cdb; 8982 if (cdb->byte2 & SVFY_BYTCHK) 8983 bytchk = 1; 8984 if (cdb->byte2 & SVFY_DPO) 8985 flags |= CTL_LLF_DPO; 8986 lba = scsi_4btoul(cdb->addr); 8987 num_blocks = scsi_4btoul(cdb->length); 8988 break; 8989 } 8990 case VERIFY_16: { 8991 struct scsi_rw_16 *cdb; 8992 8993 cdb = (struct scsi_rw_16 *)ctsio->cdb; 8994 if (cdb->byte2 & SVFY_BYTCHK) 8995 bytchk = 1; 8996 if (cdb->byte2 & SVFY_DPO) 8997 flags |= CTL_LLF_DPO; 8998 lba = scsi_8btou64(cdb->addr); 8999 num_blocks = scsi_4btoul(cdb->length); 9000 break; 9001 } 9002 default: 9003 /* 9004 * We got a command we don't support. This shouldn't 9005 * happen, commands should be filtered out above us. 9006 */ 9007 ctl_set_invalid_opcode(ctsio); 9008 ctl_done((union ctl_io *)ctsio); 9009 return (CTL_RETVAL_COMPLETE); 9010 } 9011 9012 /* 9013 * The first check is to make sure we're in bounds, the second 9014 * check is to catch wrap-around problems. If the lba + num blocks 9015 * is less than the lba, then we've wrapped around and the block 9016 * range is invalid anyway. 9017 */ 9018 if (((lba + num_blocks) > (lun->be_lun->maxlba + 1)) 9019 || ((lba + num_blocks) < lba)) { 9020 ctl_set_lba_out_of_range(ctsio, 9021 MAX(lba, lun->be_lun->maxlba + 1)); 9022 ctl_done((union ctl_io *)ctsio); 9023 return (CTL_RETVAL_COMPLETE); 9024 } 9025 9026 /* 9027 * According to SBC-3, a transfer length of 0 is not an error. 9028 */ 9029 if (num_blocks == 0) { 9030 ctl_set_success(ctsio); 9031 ctl_done((union ctl_io *)ctsio); 9032 return (CTL_RETVAL_COMPLETE); 9033 } 9034 9035 lbalen = (struct ctl_lba_len_flags *) 9036 &ctsio->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 9037 lbalen->lba = lba; 9038 lbalen->len = num_blocks; 9039 if (bytchk) { 9040 lbalen->flags = CTL_LLF_COMPARE | flags; 9041 ctsio->kern_total_len = num_blocks * lun->be_lun->blocksize; 9042 } else { 9043 lbalen->flags = CTL_LLF_VERIFY | flags; 9044 ctsio->kern_total_len = 0; 9045 } 9046 ctsio->kern_rel_offset = 0; 9047 9048 CTL_DEBUG_PRINT(("ctl_verify: calling data_submit()\n")); 9049 retval = lun->backend->data_submit((union ctl_io *)ctsio); 9050 return (retval); 9051} 9052 9053int 9054ctl_report_luns(struct ctl_scsiio *ctsio) 9055{ 9056 struct ctl_softc *softc = CTL_SOFTC(ctsio); 9057 struct ctl_port *port = CTL_PORT(ctsio); 9058 struct ctl_lun *lun, *request_lun = CTL_LUN(ctsio); 9059 struct scsi_report_luns *cdb; 9060 struct scsi_report_luns_data *lun_data; 9061 int num_filled, num_luns, num_port_luns, retval; 9062 uint32_t alloc_len, lun_datalen; 9063 uint32_t initidx, targ_lun_id, lun_id; 9064 9065 retval = CTL_RETVAL_COMPLETE; 9066 cdb = (struct scsi_report_luns *)ctsio->cdb; 9067 9068 CTL_DEBUG_PRINT(("ctl_report_luns\n")); 9069 9070 num_luns = 0; 9071 num_port_luns = port->lun_map ? port->lun_map_size : ctl_max_luns; 9072 mtx_lock(&softc->ctl_lock); 9073 for (targ_lun_id = 0; targ_lun_id < num_port_luns; targ_lun_id++) { 9074 if (ctl_lun_map_from_port(port, targ_lun_id) != UINT32_MAX) 9075 num_luns++; 9076 } 9077 mtx_unlock(&softc->ctl_lock); 9078 9079 switch (cdb->select_report) { 9080 case RPL_REPORT_DEFAULT: 9081 case RPL_REPORT_ALL: 9082 case RPL_REPORT_NONSUBSID: 9083 break; 9084 case RPL_REPORT_WELLKNOWN: 9085 case RPL_REPORT_ADMIN: 9086 case RPL_REPORT_CONGLOM: 9087 num_luns = 0; 9088 break; 9089 default: 9090 ctl_set_invalid_field(ctsio, 9091 /*sks_valid*/ 1, 9092 /*command*/ 1, 9093 /*field*/ 2, 9094 /*bit_valid*/ 0, 9095 /*bit*/ 0); 9096 ctl_done((union ctl_io *)ctsio); 9097 return (retval); 9098 break; /* NOTREACHED */ 9099 } 9100 9101 alloc_len = scsi_4btoul(cdb->length); 9102 /* 9103 * The initiator has to allocate at least 16 bytes for this request, 9104 * so he can at least get the header and the first LUN. Otherwise 9105 * we reject the request (per SPC-3 rev 14, section 6.21). 9106 */ 9107 if (alloc_len < (sizeof(struct scsi_report_luns_data) + 9108 sizeof(struct scsi_report_luns_lundata))) { 9109 ctl_set_invalid_field(ctsio, 9110 /*sks_valid*/ 1, 9111 /*command*/ 1, 9112 /*field*/ 6, 9113 /*bit_valid*/ 0, 9114 /*bit*/ 0); 9115 ctl_done((union ctl_io *)ctsio); 9116 return (retval); 9117 } 9118 9119 lun_datalen = sizeof(*lun_data) + 9120 (num_luns * sizeof(struct scsi_report_luns_lundata)); 9121 9122 ctsio->kern_data_ptr = malloc(lun_datalen, M_CTL, M_WAITOK | M_ZERO); 9123 lun_data = (struct scsi_report_luns_data *)ctsio->kern_data_ptr; 9124 ctsio->kern_sg_entries = 0; 9125 9126 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9127 9128 mtx_lock(&softc->ctl_lock); 9129 for (targ_lun_id = 0, num_filled = 0; 9130 targ_lun_id < num_port_luns && num_filled < num_luns; 9131 targ_lun_id++) { 9132 lun_id = ctl_lun_map_from_port(port, targ_lun_id); 9133 if (lun_id == UINT32_MAX) 9134 continue; 9135 lun = softc->ctl_luns[lun_id]; 9136 if (lun == NULL) 9137 continue; 9138 9139 be64enc(lun_data->luns[num_filled++].lundata, 9140 ctl_encode_lun(targ_lun_id)); 9141 9142 /* 9143 * According to SPC-3, rev 14 section 6.21: 9144 * 9145 * "The execution of a REPORT LUNS command to any valid and 9146 * installed logical unit shall clear the REPORTED LUNS DATA 9147 * HAS CHANGED unit attention condition for all logical 9148 * units of that target with respect to the requesting 9149 * initiator. A valid and installed logical unit is one 9150 * having a PERIPHERAL QUALIFIER of 000b in the standard 9151 * INQUIRY data (see 6.4.2)." 9152 * 9153 * If request_lun is NULL, the LUN this report luns command 9154 * was issued to is either disabled or doesn't exist. In that 9155 * case, we shouldn't clear any pending lun change unit 9156 * attention. 9157 */ 9158 if (request_lun != NULL) { 9159 mtx_lock(&lun->lun_lock); 9160 ctl_clr_ua(lun, initidx, CTL_UA_LUN_CHANGE); 9161 mtx_unlock(&lun->lun_lock); 9162 } 9163 } 9164 mtx_unlock(&softc->ctl_lock); 9165 9166 /* 9167 * It's quite possible that we've returned fewer LUNs than we allocated 9168 * space for. Trim it. 9169 */ 9170 lun_datalen = sizeof(*lun_data) + 9171 (num_filled * sizeof(struct scsi_report_luns_lundata)); 9172 ctsio->kern_rel_offset = 0; 9173 ctsio->kern_sg_entries = 0; 9174 ctsio->kern_data_len = min(lun_datalen, alloc_len); 9175 ctsio->kern_total_len = ctsio->kern_data_len; 9176 9177 /* 9178 * We set this to the actual data length, regardless of how much 9179 * space we actually have to return results. If the user looks at 9180 * this value, he'll know whether or not he allocated enough space 9181 * and reissue the command if necessary. We don't support well 9182 * known logical units, so if the user asks for that, return none. 9183 */ 9184 scsi_ulto4b(lun_datalen - 8, lun_data->length); 9185 9186 /* 9187 * We can only return SCSI_STATUS_CHECK_COND when we can't satisfy 9188 * this request. 9189 */ 9190 ctl_set_success(ctsio); 9191 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9192 ctsio->be_move_done = ctl_config_move_done; 9193 ctl_datamove((union ctl_io *)ctsio); 9194 return (retval); 9195} 9196 9197int 9198ctl_request_sense(struct ctl_scsiio *ctsio) 9199{ 9200 struct ctl_softc *softc = CTL_SOFTC(ctsio); 9201 struct ctl_lun *lun = CTL_LUN(ctsio); 9202 struct scsi_request_sense *cdb; 9203 struct scsi_sense_data *sense_ptr, *ps; 9204 uint32_t initidx; 9205 int have_error; 9206 u_int sense_len = SSD_FULL_SIZE; 9207 scsi_sense_data_type sense_format; 9208 ctl_ua_type ua_type; 9209 uint8_t asc = 0, ascq = 0; 9210 9211 cdb = (struct scsi_request_sense *)ctsio->cdb; 9212 9213 CTL_DEBUG_PRINT(("ctl_request_sense\n")); 9214 9215 /* 9216 * Determine which sense format the user wants. 9217 */ 9218 if (cdb->byte2 & SRS_DESC) 9219 sense_format = SSD_TYPE_DESC; 9220 else 9221 sense_format = SSD_TYPE_FIXED; 9222 9223 ctsio->kern_data_ptr = malloc(sizeof(*sense_ptr), M_CTL, M_WAITOK); 9224 sense_ptr = (struct scsi_sense_data *)ctsio->kern_data_ptr; 9225 ctsio->kern_sg_entries = 0; 9226 ctsio->kern_rel_offset = 0; 9227 9228 /* 9229 * struct scsi_sense_data, which is currently set to 256 bytes, is 9230 * larger than the largest allowed value for the length field in the 9231 * REQUEST SENSE CDB, which is 252 bytes as of SPC-4. 9232 */ 9233 ctsio->kern_data_len = cdb->length; 9234 ctsio->kern_total_len = cdb->length; 9235 9236 /* 9237 * If we don't have a LUN, we don't have any pending sense. 9238 */ 9239 if (lun == NULL || 9240 ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 9241 softc->ha_link < CTL_HA_LINK_UNKNOWN)) { 9242 /* "Logical unit not supported" */ 9243 ctl_set_sense_data(sense_ptr, &sense_len, NULL, sense_format, 9244 /*current_error*/ 1, 9245 /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST, 9246 /*asc*/ 0x25, 9247 /*ascq*/ 0x00, 9248 SSD_ELEM_NONE); 9249 goto send; 9250 } 9251 9252 have_error = 0; 9253 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 9254 /* 9255 * Check for pending sense, and then for pending unit attentions. 9256 * Pending sense gets returned first, then pending unit attentions. 9257 */ 9258 mtx_lock(&lun->lun_lock); 9259 ps = lun->pending_sense[initidx / CTL_MAX_INIT_PER_PORT]; 9260 if (ps != NULL) 9261 ps += initidx % CTL_MAX_INIT_PER_PORT; 9262 if (ps != NULL && ps->error_code != 0) { 9263 scsi_sense_data_type stored_format; 9264 9265 /* 9266 * Check to see which sense format was used for the stored 9267 * sense data. 9268 */ 9269 stored_format = scsi_sense_type(ps); 9270 9271 /* 9272 * If the user requested a different sense format than the 9273 * one we stored, then we need to convert it to the other 9274 * format. If we're going from descriptor to fixed format 9275 * sense data, we may lose things in translation, depending 9276 * on what options were used. 9277 * 9278 * If the stored format is SSD_TYPE_NONE (i.e. invalid), 9279 * for some reason we'll just copy it out as-is. 9280 */ 9281 if ((stored_format == SSD_TYPE_FIXED) 9282 && (sense_format == SSD_TYPE_DESC)) 9283 ctl_sense_to_desc((struct scsi_sense_data_fixed *) 9284 ps, (struct scsi_sense_data_desc *)sense_ptr); 9285 else if ((stored_format == SSD_TYPE_DESC) 9286 && (sense_format == SSD_TYPE_FIXED)) 9287 ctl_sense_to_fixed((struct scsi_sense_data_desc *) 9288 ps, (struct scsi_sense_data_fixed *)sense_ptr); 9289 else 9290 memcpy(sense_ptr, ps, sizeof(*sense_ptr)); 9291 9292 ps->error_code = 0; 9293 have_error = 1; 9294 } else { 9295 ua_type = ctl_build_ua(lun, initidx, sense_ptr, &sense_len, 9296 sense_format); 9297 if (ua_type != CTL_UA_NONE) 9298 have_error = 1; 9299 } 9300 if (have_error == 0) { 9301 /* 9302 * Report informational exception if have one and allowed. 9303 */ 9304 if (lun->MODE_IE.mrie != SIEP_MRIE_NO) { 9305 asc = lun->ie_asc; 9306 ascq = lun->ie_ascq; 9307 } 9308 ctl_set_sense_data(sense_ptr, &sense_len, lun, sense_format, 9309 /*current_error*/ 1, 9310 /*sense_key*/ SSD_KEY_NO_SENSE, 9311 /*asc*/ asc, 9312 /*ascq*/ ascq, 9313 SSD_ELEM_NONE); 9314 } 9315 mtx_unlock(&lun->lun_lock); 9316 9317send: 9318 /* 9319 * We report the SCSI status as OK, since the status of the command 9320 * itself is OK. We're reporting sense as parameter data. 9321 */ 9322 ctl_set_success(ctsio); 9323 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9324 ctsio->be_move_done = ctl_config_move_done; 9325 ctl_datamove((union ctl_io *)ctsio); 9326 return (CTL_RETVAL_COMPLETE); 9327} 9328 9329int 9330ctl_tur(struct ctl_scsiio *ctsio) 9331{ 9332 9333 CTL_DEBUG_PRINT(("ctl_tur\n")); 9334 9335 ctl_set_success(ctsio); 9336 ctl_done((union ctl_io *)ctsio); 9337 9338 return (CTL_RETVAL_COMPLETE); 9339} 9340 9341/* 9342 * SCSI VPD page 0x00, the Supported VPD Pages page. 9343 */ 9344static int 9345ctl_inquiry_evpd_supported(struct ctl_scsiio *ctsio, int alloc_len) 9346{ 9347 struct ctl_lun *lun = CTL_LUN(ctsio); 9348 struct scsi_vpd_supported_pages *pages; 9349 int sup_page_size; 9350 int p; 9351 9352 sup_page_size = sizeof(struct scsi_vpd_supported_pages) * 9353 SCSI_EVPD_NUM_SUPPORTED_PAGES; 9354 ctsio->kern_data_ptr = malloc(sup_page_size, M_CTL, M_WAITOK | M_ZERO); 9355 pages = (struct scsi_vpd_supported_pages *)ctsio->kern_data_ptr; 9356 ctsio->kern_rel_offset = 0; 9357 ctsio->kern_sg_entries = 0; 9358 ctsio->kern_data_len = min(sup_page_size, alloc_len); 9359 ctsio->kern_total_len = ctsio->kern_data_len; 9360 9361 /* 9362 * The control device is always connected. The disk device, on the 9363 * other hand, may not be online all the time. Need to change this 9364 * to figure out whether the disk device is actually online or not. 9365 */ 9366 if (lun != NULL) 9367 pages->device = (SID_QUAL_LU_CONNECTED << 5) | 9368 lun->be_lun->lun_type; 9369 else 9370 pages->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9371 9372 p = 0; 9373 /* Supported VPD pages */ 9374 pages->page_list[p++] = SVPD_SUPPORTED_PAGES; 9375 /* Serial Number */ 9376 pages->page_list[p++] = SVPD_UNIT_SERIAL_NUMBER; 9377 /* Device Identification */ 9378 pages->page_list[p++] = SVPD_DEVICE_ID; 9379 /* Extended INQUIRY Data */ 9380 pages->page_list[p++] = SVPD_EXTENDED_INQUIRY_DATA; 9381 /* Mode Page Policy */ 9382 pages->page_list[p++] = SVPD_MODE_PAGE_POLICY; 9383 /* SCSI Ports */ 9384 pages->page_list[p++] = SVPD_SCSI_PORTS; 9385 /* Third-party Copy */ 9386 pages->page_list[p++] = SVPD_SCSI_TPC; 9387 if (lun != NULL && lun->be_lun->lun_type == T_DIRECT) { 9388 /* Block limits */ 9389 pages->page_list[p++] = SVPD_BLOCK_LIMITS; 9390 /* Block Device Characteristics */ 9391 pages->page_list[p++] = SVPD_BDC; 9392 /* Logical Block Provisioning */ 9393 pages->page_list[p++] = SVPD_LBP; 9394 } 9395 pages->length = p; 9396 9397 ctl_set_success(ctsio); 9398 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9399 ctsio->be_move_done = ctl_config_move_done; 9400 ctl_datamove((union ctl_io *)ctsio); 9401 return (CTL_RETVAL_COMPLETE); 9402} 9403 9404/* 9405 * SCSI VPD page 0x80, the Unit Serial Number page. 9406 */ 9407static int 9408ctl_inquiry_evpd_serial(struct ctl_scsiio *ctsio, int alloc_len) 9409{ 9410 struct ctl_lun *lun = CTL_LUN(ctsio); 9411 struct scsi_vpd_unit_serial_number *sn_ptr; 9412 int data_len; 9413 9414 data_len = 4 + CTL_SN_LEN; 9415 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9416 sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr; 9417 ctsio->kern_rel_offset = 0; 9418 ctsio->kern_sg_entries = 0; 9419 ctsio->kern_data_len = min(data_len, alloc_len); 9420 ctsio->kern_total_len = ctsio->kern_data_len; 9421 9422 /* 9423 * The control device is always connected. The disk device, on the 9424 * other hand, may not be online all the time. Need to change this 9425 * to figure out whether the disk device is actually online or not. 9426 */ 9427 if (lun != NULL) 9428 sn_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9429 lun->be_lun->lun_type; 9430 else 9431 sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9432 9433 sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER; 9434 sn_ptr->length = CTL_SN_LEN; 9435 /* 9436 * If we don't have a LUN, we just leave the serial number as 9437 * all spaces. 9438 */ 9439 if (lun != NULL) { 9440 strncpy((char *)sn_ptr->serial_num, 9441 (char *)lun->be_lun->serial_num, CTL_SN_LEN); 9442 } else 9443 memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN); 9444 9445 ctl_set_success(ctsio); 9446 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9447 ctsio->be_move_done = ctl_config_move_done; 9448 ctl_datamove((union ctl_io *)ctsio); 9449 return (CTL_RETVAL_COMPLETE); 9450} 9451 9452 9453/* 9454 * SCSI VPD page 0x86, the Extended INQUIRY Data page. 9455 */ 9456static int 9457ctl_inquiry_evpd_eid(struct ctl_scsiio *ctsio, int alloc_len) 9458{ 9459 struct ctl_lun *lun = CTL_LUN(ctsio); 9460 struct scsi_vpd_extended_inquiry_data *eid_ptr; 9461 int data_len; 9462 9463 data_len = sizeof(struct scsi_vpd_extended_inquiry_data); 9464 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9465 eid_ptr = (struct scsi_vpd_extended_inquiry_data *)ctsio->kern_data_ptr; 9466 ctsio->kern_sg_entries = 0; 9467 ctsio->kern_rel_offset = 0; 9468 ctsio->kern_data_len = min(data_len, alloc_len); 9469 ctsio->kern_total_len = ctsio->kern_data_len; 9470 9471 /* 9472 * The control device is always connected. The disk device, on the 9473 * other hand, may not be online all the time. 9474 */ 9475 if (lun != NULL) 9476 eid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9477 lun->be_lun->lun_type; 9478 else 9479 eid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9480 eid_ptr->page_code = SVPD_EXTENDED_INQUIRY_DATA; 9481 scsi_ulto2b(data_len - 4, eid_ptr->page_length); 9482 /* 9483 * We support head of queue, ordered and simple tags. 9484 */ 9485 eid_ptr->flags2 = SVPD_EID_HEADSUP | SVPD_EID_ORDSUP | SVPD_EID_SIMPSUP; 9486 /* 9487 * Volatile cache supported. 9488 */ 9489 eid_ptr->flags3 = SVPD_EID_V_SUP; 9490 9491 /* 9492 * This means that we clear the REPORTED LUNS DATA HAS CHANGED unit 9493 * attention for a particular IT nexus on all LUNs once we report 9494 * it to that nexus once. This bit is required as of SPC-4. 9495 */ 9496 eid_ptr->flags4 = SVPD_EID_LUICLR; 9497 9498 /* 9499 * We support revert to defaults (RTD) bit in MODE SELECT. 9500 */ 9501 eid_ptr->flags5 = SVPD_EID_RTD_SUP; 9502 9503 /* 9504 * XXX KDM in order to correctly answer this, we would need 9505 * information from the SIM to determine how much sense data it 9506 * can send. So this would really be a path inquiry field, most 9507 * likely. This can be set to a maximum of 252 according to SPC-4, 9508 * but the hardware may or may not be able to support that much. 9509 * 0 just means that the maximum sense data length is not reported. 9510 */ 9511 eid_ptr->max_sense_length = 0; 9512 9513 ctl_set_success(ctsio); 9514 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9515 ctsio->be_move_done = ctl_config_move_done; 9516 ctl_datamove((union ctl_io *)ctsio); 9517 return (CTL_RETVAL_COMPLETE); 9518} 9519 9520static int 9521ctl_inquiry_evpd_mpp(struct ctl_scsiio *ctsio, int alloc_len) 9522{ 9523 struct ctl_lun *lun = CTL_LUN(ctsio); 9524 struct scsi_vpd_mode_page_policy *mpp_ptr; 9525 int data_len; 9526 9527 data_len = sizeof(struct scsi_vpd_mode_page_policy) + 9528 sizeof(struct scsi_vpd_mode_page_policy_descr); 9529 9530 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9531 mpp_ptr = (struct scsi_vpd_mode_page_policy *)ctsio->kern_data_ptr; 9532 ctsio->kern_rel_offset = 0; 9533 ctsio->kern_sg_entries = 0; 9534 ctsio->kern_data_len = min(data_len, alloc_len); 9535 ctsio->kern_total_len = ctsio->kern_data_len; 9536 9537 /* 9538 * The control device is always connected. The disk device, on the 9539 * other hand, may not be online all the time. 9540 */ 9541 if (lun != NULL) 9542 mpp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9543 lun->be_lun->lun_type; 9544 else 9545 mpp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9546 mpp_ptr->page_code = SVPD_MODE_PAGE_POLICY; 9547 scsi_ulto2b(data_len - 4, mpp_ptr->page_length); 9548 mpp_ptr->descr[0].page_code = 0x3f; 9549 mpp_ptr->descr[0].subpage_code = 0xff; 9550 mpp_ptr->descr[0].policy = SVPD_MPP_SHARED; 9551 9552 ctl_set_success(ctsio); 9553 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9554 ctsio->be_move_done = ctl_config_move_done; 9555 ctl_datamove((union ctl_io *)ctsio); 9556 return (CTL_RETVAL_COMPLETE); 9557} 9558 9559/* 9560 * SCSI VPD page 0x83, the Device Identification page. 9561 */ 9562static int 9563ctl_inquiry_evpd_devid(struct ctl_scsiio *ctsio, int alloc_len) 9564{ 9565 struct ctl_softc *softc = CTL_SOFTC(ctsio); 9566 struct ctl_port *port = CTL_PORT(ctsio); 9567 struct ctl_lun *lun = CTL_LUN(ctsio); 9568 struct scsi_vpd_device_id *devid_ptr; 9569 struct scsi_vpd_id_descriptor *desc; 9570 int data_len, g; 9571 uint8_t proto; 9572 9573 data_len = sizeof(struct scsi_vpd_device_id) + 9574 sizeof(struct scsi_vpd_id_descriptor) + 9575 sizeof(struct scsi_vpd_id_rel_trgt_port_id) + 9576 sizeof(struct scsi_vpd_id_descriptor) + 9577 sizeof(struct scsi_vpd_id_trgt_port_grp_id); 9578 if (lun && lun->lun_devid) 9579 data_len += lun->lun_devid->len; 9580 if (port && port->port_devid) 9581 data_len += port->port_devid->len; 9582 if (port && port->target_devid) 9583 data_len += port->target_devid->len; 9584 9585 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9586 devid_ptr = (struct scsi_vpd_device_id *)ctsio->kern_data_ptr; 9587 ctsio->kern_sg_entries = 0; 9588 ctsio->kern_rel_offset = 0; 9589 ctsio->kern_sg_entries = 0; 9590 ctsio->kern_data_len = min(data_len, alloc_len); 9591 ctsio->kern_total_len = ctsio->kern_data_len; 9592 9593 /* 9594 * The control device is always connected. The disk device, on the 9595 * other hand, may not be online all the time. 9596 */ 9597 if (lun != NULL) 9598 devid_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9599 lun->be_lun->lun_type; 9600 else 9601 devid_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9602 devid_ptr->page_code = SVPD_DEVICE_ID; 9603 scsi_ulto2b(data_len - 4, devid_ptr->length); 9604 9605 if (port && port->port_type == CTL_PORT_FC) 9606 proto = SCSI_PROTO_FC << 4; 9607 else if (port && port->port_type == CTL_PORT_SAS) 9608 proto = SCSI_PROTO_SAS << 4; 9609 else if (port && port->port_type == CTL_PORT_ISCSI) 9610 proto = SCSI_PROTO_ISCSI << 4; 9611 else 9612 proto = SCSI_PROTO_SPI << 4; 9613 desc = (struct scsi_vpd_id_descriptor *)devid_ptr->desc_list; 9614 9615 /* 9616 * We're using a LUN association here. i.e., this device ID is a 9617 * per-LUN identifier. 9618 */ 9619 if (lun && lun->lun_devid) { 9620 memcpy(desc, lun->lun_devid->data, lun->lun_devid->len); 9621 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9622 lun->lun_devid->len); 9623 } 9624 9625 /* 9626 * This is for the WWPN which is a port association. 9627 */ 9628 if (port && port->port_devid) { 9629 memcpy(desc, port->port_devid->data, port->port_devid->len); 9630 desc = (struct scsi_vpd_id_descriptor *)((uint8_t *)desc + 9631 port->port_devid->len); 9632 } 9633 9634 /* 9635 * This is for the Relative Target Port(type 4h) identifier 9636 */ 9637 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9638 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9639 SVPD_ID_TYPE_RELTARG; 9640 desc->length = 4; 9641 scsi_ulto2b(ctsio->io_hdr.nexus.targ_port, &desc->identifier[2]); 9642 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9643 sizeof(struct scsi_vpd_id_rel_trgt_port_id)); 9644 9645 /* 9646 * This is for the Target Port Group(type 5h) identifier 9647 */ 9648 desc->proto_codeset = proto | SVPD_ID_CODESET_BINARY; 9649 desc->id_type = SVPD_ID_PIV | SVPD_ID_ASSOC_PORT | 9650 SVPD_ID_TYPE_TPORTGRP; 9651 desc->length = 4; 9652 if (softc->is_single || 9653 (port && port->status & CTL_PORT_STATUS_HA_SHARED)) 9654 g = 1; 9655 else 9656 g = 2 + ctsio->io_hdr.nexus.targ_port / softc->port_cnt; 9657 scsi_ulto2b(g, &desc->identifier[2]); 9658 desc = (struct scsi_vpd_id_descriptor *)(&desc->identifier[0] + 9659 sizeof(struct scsi_vpd_id_trgt_port_grp_id)); 9660 9661 /* 9662 * This is for the Target identifier 9663 */ 9664 if (port && port->target_devid) { 9665 memcpy(desc, port->target_devid->data, port->target_devid->len); 9666 } 9667 9668 ctl_set_success(ctsio); 9669 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9670 ctsio->be_move_done = ctl_config_move_done; 9671 ctl_datamove((union ctl_io *)ctsio); 9672 return (CTL_RETVAL_COMPLETE); 9673} 9674 9675static int 9676ctl_inquiry_evpd_scsi_ports(struct ctl_scsiio *ctsio, int alloc_len) 9677{ 9678 struct ctl_softc *softc = CTL_SOFTC(ctsio); 9679 struct ctl_lun *lun = CTL_LUN(ctsio); 9680 struct scsi_vpd_scsi_ports *sp; 9681 struct scsi_vpd_port_designation *pd; 9682 struct scsi_vpd_port_designation_cont *pdc; 9683 struct ctl_port *port; 9684 int data_len, num_target_ports, iid_len, id_len; 9685 9686 num_target_ports = 0; 9687 iid_len = 0; 9688 id_len = 0; 9689 mtx_lock(&softc->ctl_lock); 9690 STAILQ_FOREACH(port, &softc->port_list, links) { 9691 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9692 continue; 9693 if (lun != NULL && 9694 ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 9695 continue; 9696 num_target_ports++; 9697 if (port->init_devid) 9698 iid_len += port->init_devid->len; 9699 if (port->port_devid) 9700 id_len += port->port_devid->len; 9701 } 9702 mtx_unlock(&softc->ctl_lock); 9703 9704 data_len = sizeof(struct scsi_vpd_scsi_ports) + 9705 num_target_ports * (sizeof(struct scsi_vpd_port_designation) + 9706 sizeof(struct scsi_vpd_port_designation_cont)) + iid_len + id_len; 9707 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 9708 sp = (struct scsi_vpd_scsi_ports *)ctsio->kern_data_ptr; 9709 ctsio->kern_sg_entries = 0; 9710 ctsio->kern_rel_offset = 0; 9711 ctsio->kern_sg_entries = 0; 9712 ctsio->kern_data_len = min(data_len, alloc_len); 9713 ctsio->kern_total_len = ctsio->kern_data_len; 9714 9715 /* 9716 * The control device is always connected. The disk device, on the 9717 * other hand, may not be online all the time. Need to change this 9718 * to figure out whether the disk device is actually online or not. 9719 */ 9720 if (lun != NULL) 9721 sp->device = (SID_QUAL_LU_CONNECTED << 5) | 9722 lun->be_lun->lun_type; 9723 else 9724 sp->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9725 9726 sp->page_code = SVPD_SCSI_PORTS; 9727 scsi_ulto2b(data_len - sizeof(struct scsi_vpd_scsi_ports), 9728 sp->page_length); 9729 pd = &sp->design[0]; 9730 9731 mtx_lock(&softc->ctl_lock); 9732 STAILQ_FOREACH(port, &softc->port_list, links) { 9733 if ((port->status & CTL_PORT_STATUS_ONLINE) == 0) 9734 continue; 9735 if (lun != NULL && 9736 ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 9737 continue; 9738 scsi_ulto2b(port->targ_port, pd->relative_port_id); 9739 if (port->init_devid) { 9740 iid_len = port->init_devid->len; 9741 memcpy(pd->initiator_transportid, 9742 port->init_devid->data, port->init_devid->len); 9743 } else 9744 iid_len = 0; 9745 scsi_ulto2b(iid_len, pd->initiator_transportid_length); 9746 pdc = (struct scsi_vpd_port_designation_cont *) 9747 (&pd->initiator_transportid[iid_len]); 9748 if (port->port_devid) { 9749 id_len = port->port_devid->len; 9750 memcpy(pdc->target_port_descriptors, 9751 port->port_devid->data, port->port_devid->len); 9752 } else 9753 id_len = 0; 9754 scsi_ulto2b(id_len, pdc->target_port_descriptors_length); 9755 pd = (struct scsi_vpd_port_designation *) 9756 ((uint8_t *)pdc->target_port_descriptors + id_len); 9757 } 9758 mtx_unlock(&softc->ctl_lock); 9759 9760 ctl_set_success(ctsio); 9761 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9762 ctsio->be_move_done = ctl_config_move_done; 9763 ctl_datamove((union ctl_io *)ctsio); 9764 return (CTL_RETVAL_COMPLETE); 9765} 9766 9767static int 9768ctl_inquiry_evpd_block_limits(struct ctl_scsiio *ctsio, int alloc_len) 9769{ 9770 struct ctl_lun *lun = CTL_LUN(ctsio); 9771 struct scsi_vpd_block_limits *bl_ptr; 9772 uint64_t ival; 9773 9774 ctsio->kern_data_ptr = malloc(sizeof(*bl_ptr), M_CTL, M_WAITOK | M_ZERO); 9775 bl_ptr = (struct scsi_vpd_block_limits *)ctsio->kern_data_ptr; 9776 ctsio->kern_sg_entries = 0; 9777 ctsio->kern_rel_offset = 0; 9778 ctsio->kern_sg_entries = 0; 9779 ctsio->kern_data_len = min(sizeof(*bl_ptr), alloc_len); 9780 ctsio->kern_total_len = ctsio->kern_data_len; 9781 9782 /* 9783 * The control device is always connected. The disk device, on the 9784 * other hand, may not be online all the time. Need to change this 9785 * to figure out whether the disk device is actually online or not. 9786 */ 9787 if (lun != NULL) 9788 bl_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9789 lun->be_lun->lun_type; 9790 else 9791 bl_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9792 9793 bl_ptr->page_code = SVPD_BLOCK_LIMITS; 9794 scsi_ulto2b(sizeof(*bl_ptr) - 4, bl_ptr->page_length); 9795 bl_ptr->max_cmp_write_len = 0xff; 9796 scsi_ulto4b(0xffffffff, bl_ptr->max_txfer_len); 9797 if (lun != NULL) { 9798 scsi_ulto4b(lun->be_lun->opttxferlen, bl_ptr->opt_txfer_len); 9799 if (lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9800 ival = 0xffffffff; 9801 ctl_get_opt_number(&lun->be_lun->options, 9802 "unmap_max_lba", &ival); 9803 scsi_ulto4b(ival, bl_ptr->max_unmap_lba_cnt); 9804 ival = 0xffffffff; 9805 ctl_get_opt_number(&lun->be_lun->options, 9806 "unmap_max_descr", &ival); 9807 scsi_ulto4b(ival, bl_ptr->max_unmap_blk_cnt); 9808 if (lun->be_lun->ublockexp != 0) { 9809 scsi_ulto4b((1 << lun->be_lun->ublockexp), 9810 bl_ptr->opt_unmap_grain); 9811 scsi_ulto4b(0x80000000 | lun->be_lun->ublockoff, 9812 bl_ptr->unmap_grain_align); 9813 } 9814 } 9815 scsi_ulto4b(lun->be_lun->atomicblock, 9816 bl_ptr->max_atomic_transfer_length); 9817 scsi_ulto4b(0, bl_ptr->atomic_alignment); 9818 scsi_ulto4b(0, bl_ptr->atomic_transfer_length_granularity); 9819 scsi_ulto4b(0, bl_ptr->max_atomic_transfer_length_with_atomic_boundary); 9820 scsi_ulto4b(0, bl_ptr->max_atomic_boundary_size); 9821 ival = UINT64_MAX; 9822 ctl_get_opt_number(&lun->be_lun->options, "write_same_max_lba", &ival); 9823 scsi_u64to8b(ival, bl_ptr->max_write_same_length); 9824 } 9825 9826 ctl_set_success(ctsio); 9827 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9828 ctsio->be_move_done = ctl_config_move_done; 9829 ctl_datamove((union ctl_io *)ctsio); 9830 return (CTL_RETVAL_COMPLETE); 9831} 9832 9833static int 9834ctl_inquiry_evpd_bdc(struct ctl_scsiio *ctsio, int alloc_len) 9835{ 9836 struct ctl_lun *lun = CTL_LUN(ctsio); 9837 struct scsi_vpd_block_device_characteristics *bdc_ptr; 9838 const char *value; 9839 u_int i; 9840 9841 ctsio->kern_data_ptr = malloc(sizeof(*bdc_ptr), M_CTL, M_WAITOK | M_ZERO); 9842 bdc_ptr = (struct scsi_vpd_block_device_characteristics *)ctsio->kern_data_ptr; 9843 ctsio->kern_sg_entries = 0; 9844 ctsio->kern_rel_offset = 0; 9845 ctsio->kern_data_len = min(sizeof(*bdc_ptr), alloc_len); 9846 ctsio->kern_total_len = ctsio->kern_data_len; 9847 9848 /* 9849 * The control device is always connected. The disk device, on the 9850 * other hand, may not be online all the time. Need to change this 9851 * to figure out whether the disk device is actually online or not. 9852 */ 9853 if (lun != NULL) 9854 bdc_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9855 lun->be_lun->lun_type; 9856 else 9857 bdc_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9858 bdc_ptr->page_code = SVPD_BDC; 9859 scsi_ulto2b(sizeof(*bdc_ptr) - 4, bdc_ptr->page_length); 9860 if (lun != NULL && 9861 (value = ctl_get_opt(&lun->be_lun->options, "rpm")) != NULL) 9862 i = strtol(value, NULL, 0); 9863 else 9864 i = CTL_DEFAULT_ROTATION_RATE; 9865 scsi_ulto2b(i, bdc_ptr->medium_rotation_rate); 9866 if (lun != NULL && 9867 (value = ctl_get_opt(&lun->be_lun->options, "formfactor")) != NULL) 9868 i = strtol(value, NULL, 0); 9869 else 9870 i = 0; 9871 bdc_ptr->wab_wac_ff = (i & 0x0f); 9872 bdc_ptr->flags = SVPD_FUAB | SVPD_VBULS; 9873 9874 ctl_set_success(ctsio); 9875 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9876 ctsio->be_move_done = ctl_config_move_done; 9877 ctl_datamove((union ctl_io *)ctsio); 9878 return (CTL_RETVAL_COMPLETE); 9879} 9880 9881static int 9882ctl_inquiry_evpd_lbp(struct ctl_scsiio *ctsio, int alloc_len) 9883{ 9884 struct ctl_lun *lun = CTL_LUN(ctsio); 9885 struct scsi_vpd_logical_block_prov *lbp_ptr; 9886 const char *value; 9887 9888 ctsio->kern_data_ptr = malloc(sizeof(*lbp_ptr), M_CTL, M_WAITOK | M_ZERO); 9889 lbp_ptr = (struct scsi_vpd_logical_block_prov *)ctsio->kern_data_ptr; 9890 ctsio->kern_sg_entries = 0; 9891 ctsio->kern_rel_offset = 0; 9892 ctsio->kern_data_len = min(sizeof(*lbp_ptr), alloc_len); 9893 ctsio->kern_total_len = ctsio->kern_data_len; 9894 9895 /* 9896 * The control device is always connected. The disk device, on the 9897 * other hand, may not be online all the time. Need to change this 9898 * to figure out whether the disk device is actually online or not. 9899 */ 9900 if (lun != NULL) 9901 lbp_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 9902 lun->be_lun->lun_type; 9903 else 9904 lbp_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT; 9905 9906 lbp_ptr->page_code = SVPD_LBP; 9907 scsi_ulto2b(sizeof(*lbp_ptr) - 4, lbp_ptr->page_length); 9908 lbp_ptr->threshold_exponent = CTL_LBP_EXPONENT; 9909 if (lun != NULL && lun->be_lun->flags & CTL_LUN_FLAG_UNMAP) { 9910 lbp_ptr->flags = SVPD_LBP_UNMAP | SVPD_LBP_WS16 | 9911 SVPD_LBP_WS10 | SVPD_LBP_RZ | SVPD_LBP_ANC_SUP; 9912 value = ctl_get_opt(&lun->be_lun->options, "provisioning_type"); 9913 if (value != NULL) { 9914 if (strcmp(value, "resource") == 0) 9915 lbp_ptr->prov_type = SVPD_LBP_RESOURCE; 9916 else if (strcmp(value, "thin") == 0) 9917 lbp_ptr->prov_type = SVPD_LBP_THIN; 9918 } else 9919 lbp_ptr->prov_type = SVPD_LBP_THIN; 9920 } 9921 9922 ctl_set_success(ctsio); 9923 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 9924 ctsio->be_move_done = ctl_config_move_done; 9925 ctl_datamove((union ctl_io *)ctsio); 9926 return (CTL_RETVAL_COMPLETE); 9927} 9928 9929/* 9930 * INQUIRY with the EVPD bit set. 9931 */ 9932static int 9933ctl_inquiry_evpd(struct ctl_scsiio *ctsio) 9934{ 9935 struct ctl_lun *lun = CTL_LUN(ctsio); 9936 struct scsi_inquiry *cdb; 9937 int alloc_len, retval; 9938 9939 cdb = (struct scsi_inquiry *)ctsio->cdb; 9940 alloc_len = scsi_2btoul(cdb->length); 9941 9942 switch (cdb->page_code) { 9943 case SVPD_SUPPORTED_PAGES: 9944 retval = ctl_inquiry_evpd_supported(ctsio, alloc_len); 9945 break; 9946 case SVPD_UNIT_SERIAL_NUMBER: 9947 retval = ctl_inquiry_evpd_serial(ctsio, alloc_len); 9948 break; 9949 case SVPD_DEVICE_ID: 9950 retval = ctl_inquiry_evpd_devid(ctsio, alloc_len); 9951 break; 9952 case SVPD_EXTENDED_INQUIRY_DATA: 9953 retval = ctl_inquiry_evpd_eid(ctsio, alloc_len); 9954 break; 9955 case SVPD_MODE_PAGE_POLICY: 9956 retval = ctl_inquiry_evpd_mpp(ctsio, alloc_len); 9957 break; 9958 case SVPD_SCSI_PORTS: 9959 retval = ctl_inquiry_evpd_scsi_ports(ctsio, alloc_len); 9960 break; 9961 case SVPD_SCSI_TPC: 9962 retval = ctl_inquiry_evpd_tpc(ctsio, alloc_len); 9963 break; 9964 case SVPD_BLOCK_LIMITS: 9965 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 9966 goto err; 9967 retval = ctl_inquiry_evpd_block_limits(ctsio, alloc_len); 9968 break; 9969 case SVPD_BDC: 9970 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 9971 goto err; 9972 retval = ctl_inquiry_evpd_bdc(ctsio, alloc_len); 9973 break; 9974 case SVPD_LBP: 9975 if (lun == NULL || lun->be_lun->lun_type != T_DIRECT) 9976 goto err; 9977 retval = ctl_inquiry_evpd_lbp(ctsio, alloc_len); 9978 break; 9979 default: 9980err: 9981 ctl_set_invalid_field(ctsio, 9982 /*sks_valid*/ 1, 9983 /*command*/ 1, 9984 /*field*/ 2, 9985 /*bit_valid*/ 0, 9986 /*bit*/ 0); 9987 ctl_done((union ctl_io *)ctsio); 9988 retval = CTL_RETVAL_COMPLETE; 9989 break; 9990 } 9991 9992 return (retval); 9993} 9994 9995/* 9996 * Standard INQUIRY data. 9997 */ 9998static int 9999ctl_inquiry_std(struct ctl_scsiio *ctsio) 10000{ 10001 struct ctl_softc *softc = CTL_SOFTC(ctsio); 10002 struct ctl_port *port = CTL_PORT(ctsio); 10003 struct ctl_lun *lun = CTL_LUN(ctsio); 10004 struct scsi_inquiry_data *inq_ptr; 10005 struct scsi_inquiry *cdb; 10006 char *val; 10007 uint32_t alloc_len, data_len; 10008 ctl_port_type port_type; 10009 10010 port_type = port->port_type; 10011 if (port_type == CTL_PORT_IOCTL || port_type == CTL_PORT_INTERNAL) 10012 port_type = CTL_PORT_SCSI; 10013 10014 cdb = (struct scsi_inquiry *)ctsio->cdb; 10015 alloc_len = scsi_2btoul(cdb->length); 10016 10017 /* 10018 * We malloc the full inquiry data size here and fill it 10019 * in. If the user only asks for less, we'll give him 10020 * that much. 10021 */ 10022 data_len = offsetof(struct scsi_inquiry_data, vendor_specific1); 10023 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10024 inq_ptr = (struct scsi_inquiry_data *)ctsio->kern_data_ptr; 10025 ctsio->kern_sg_entries = 0; 10026 ctsio->kern_rel_offset = 0; 10027 ctsio->kern_data_len = min(data_len, alloc_len); 10028 ctsio->kern_total_len = ctsio->kern_data_len; 10029 10030 if (lun != NULL) { 10031 if ((lun->flags & CTL_LUN_PRIMARY_SC) || 10032 softc->ha_link >= CTL_HA_LINK_UNKNOWN) { 10033 inq_ptr->device = (SID_QUAL_LU_CONNECTED << 5) | 10034 lun->be_lun->lun_type; 10035 } else { 10036 inq_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | 10037 lun->be_lun->lun_type; 10038 } 10039 if (lun->flags & CTL_LUN_REMOVABLE) 10040 inq_ptr->dev_qual2 |= SID_RMB; 10041 } else 10042 inq_ptr->device = (SID_QUAL_BAD_LU << 5) | T_NODEVICE; 10043 10044 /* RMB in byte 2 is 0 */ 10045 inq_ptr->version = SCSI_REV_SPC5; 10046 10047 /* 10048 * According to SAM-3, even if a device only supports a single 10049 * level of LUN addressing, it should still set the HISUP bit: 10050 * 10051 * 4.9.1 Logical unit numbers overview 10052 * 10053 * All logical unit number formats described in this standard are 10054 * hierarchical in structure even when only a single level in that 10055 * hierarchy is used. The HISUP bit shall be set to one in the 10056 * standard INQUIRY data (see SPC-2) when any logical unit number 10057 * format described in this standard is used. Non-hierarchical 10058 * formats are outside the scope of this standard. 10059 * 10060 * Therefore we set the HiSup bit here. 10061 * 10062 * The response format is 2, per SPC-3. 10063 */ 10064 inq_ptr->response_format = SID_HiSup | 2; 10065 10066 inq_ptr->additional_length = data_len - 10067 (offsetof(struct scsi_inquiry_data, additional_length) + 1); 10068 CTL_DEBUG_PRINT(("additional_length = %d\n", 10069 inq_ptr->additional_length)); 10070 10071 inq_ptr->spc3_flags = SPC3_SID_3PC | SPC3_SID_TPGS_IMPLICIT; 10072 if (port_type == CTL_PORT_SCSI) 10073 inq_ptr->spc2_flags = SPC2_SID_ADDR16; 10074 inq_ptr->spc2_flags |= SPC2_SID_MultiP; 10075 inq_ptr->flags = SID_CmdQue; 10076 if (port_type == CTL_PORT_SCSI) 10077 inq_ptr->flags |= SID_WBus16 | SID_Sync; 10078 10079 /* 10080 * Per SPC-3, unused bytes in ASCII strings are filled with spaces. 10081 * We have 8 bytes for the vendor name, and 16 bytes for the device 10082 * name and 4 bytes for the revision. 10083 */ 10084 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10085 "vendor")) == NULL) { 10086 strncpy(inq_ptr->vendor, CTL_VENDOR, sizeof(inq_ptr->vendor)); 10087 } else { 10088 memset(inq_ptr->vendor, ' ', sizeof(inq_ptr->vendor)); 10089 strncpy(inq_ptr->vendor, val, 10090 min(sizeof(inq_ptr->vendor), strlen(val))); 10091 } 10092 if (lun == NULL) { 10093 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10094 sizeof(inq_ptr->product)); 10095 } else if ((val = ctl_get_opt(&lun->be_lun->options, "product")) == NULL) { 10096 switch (lun->be_lun->lun_type) { 10097 case T_DIRECT: 10098 strncpy(inq_ptr->product, CTL_DIRECT_PRODUCT, 10099 sizeof(inq_ptr->product)); 10100 break; 10101 case T_PROCESSOR: 10102 strncpy(inq_ptr->product, CTL_PROCESSOR_PRODUCT, 10103 sizeof(inq_ptr->product)); 10104 break; 10105 case T_CDROM: 10106 strncpy(inq_ptr->product, CTL_CDROM_PRODUCT, 10107 sizeof(inq_ptr->product)); 10108 break; 10109 default: 10110 strncpy(inq_ptr->product, CTL_UNKNOWN_PRODUCT, 10111 sizeof(inq_ptr->product)); 10112 break; 10113 } 10114 } else { 10115 memset(inq_ptr->product, ' ', sizeof(inq_ptr->product)); 10116 strncpy(inq_ptr->product, val, 10117 min(sizeof(inq_ptr->product), strlen(val))); 10118 } 10119 10120 /* 10121 * XXX make this a macro somewhere so it automatically gets 10122 * incremented when we make changes. 10123 */ 10124 if (lun == NULL || (val = ctl_get_opt(&lun->be_lun->options, 10125 "revision")) == NULL) { 10126 strncpy(inq_ptr->revision, "0001", sizeof(inq_ptr->revision)); 10127 } else { 10128 memset(inq_ptr->revision, ' ', sizeof(inq_ptr->revision)); 10129 strncpy(inq_ptr->revision, val, 10130 min(sizeof(inq_ptr->revision), strlen(val))); 10131 } 10132 10133 /* 10134 * For parallel SCSI, we support double transition and single 10135 * transition clocking. We also support QAS (Quick Arbitration 10136 * and Selection) and Information Unit transfers on both the 10137 * control and array devices. 10138 */ 10139 if (port_type == CTL_PORT_SCSI) 10140 inq_ptr->spi3data = SID_SPI_CLOCK_DT_ST | SID_SPI_QAS | 10141 SID_SPI_IUS; 10142 10143 /* SAM-6 (no version claimed) */ 10144 scsi_ulto2b(0x00C0, inq_ptr->version1); 10145 /* SPC-5 (no version claimed) */ 10146 scsi_ulto2b(0x05C0, inq_ptr->version2); 10147 if (port_type == CTL_PORT_FC) { 10148 /* FCP-2 ANSI INCITS.350:2003 */ 10149 scsi_ulto2b(0x0917, inq_ptr->version3); 10150 } else if (port_type == CTL_PORT_SCSI) { 10151 /* SPI-4 ANSI INCITS.362:200x */ 10152 scsi_ulto2b(0x0B56, inq_ptr->version3); 10153 } else if (port_type == CTL_PORT_ISCSI) { 10154 /* iSCSI (no version claimed) */ 10155 scsi_ulto2b(0x0960, inq_ptr->version3); 10156 } else if (port_type == CTL_PORT_SAS) { 10157 /* SAS (no version claimed) */ 10158 scsi_ulto2b(0x0BE0, inq_ptr->version3); 10159 } else if (port_type == CTL_PORT_UMASS) { 10160 /* USB Mass Storage Class Bulk-Only Transport, Revision 1.0 */ 10161 scsi_ulto2b(0x1730, inq_ptr->version3); 10162 } 10163 10164 if (lun == NULL) { 10165 /* SBC-4 (no version claimed) */ 10166 scsi_ulto2b(0x0600, inq_ptr->version4); 10167 } else { 10168 switch (lun->be_lun->lun_type) { 10169 case T_DIRECT: 10170 /* SBC-4 (no version claimed) */ 10171 scsi_ulto2b(0x0600, inq_ptr->version4); 10172 break; 10173 case T_PROCESSOR: 10174 break; 10175 case T_CDROM: 10176 /* MMC-6 (no version claimed) */ 10177 scsi_ulto2b(0x04E0, inq_ptr->version4); 10178 break; 10179 default: 10180 break; 10181 } 10182 } 10183 10184 ctl_set_success(ctsio); 10185 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10186 ctsio->be_move_done = ctl_config_move_done; 10187 ctl_datamove((union ctl_io *)ctsio); 10188 return (CTL_RETVAL_COMPLETE); 10189} 10190 10191int 10192ctl_inquiry(struct ctl_scsiio *ctsio) 10193{ 10194 struct scsi_inquiry *cdb; 10195 int retval; 10196 10197 CTL_DEBUG_PRINT(("ctl_inquiry\n")); 10198 10199 cdb = (struct scsi_inquiry *)ctsio->cdb; 10200 if (cdb->byte2 & SI_EVPD) 10201 retval = ctl_inquiry_evpd(ctsio); 10202 else if (cdb->page_code == 0) 10203 retval = ctl_inquiry_std(ctsio); 10204 else { 10205 ctl_set_invalid_field(ctsio, 10206 /*sks_valid*/ 1, 10207 /*command*/ 1, 10208 /*field*/ 2, 10209 /*bit_valid*/ 0, 10210 /*bit*/ 0); 10211 ctl_done((union ctl_io *)ctsio); 10212 return (CTL_RETVAL_COMPLETE); 10213 } 10214 10215 return (retval); 10216} 10217 10218int 10219ctl_get_config(struct ctl_scsiio *ctsio) 10220{ 10221 struct ctl_lun *lun = CTL_LUN(ctsio); 10222 struct scsi_get_config_header *hdr; 10223 struct scsi_get_config_feature *feature; 10224 struct scsi_get_config *cdb; 10225 uint32_t alloc_len, data_len; 10226 int rt, starting; 10227 10228 cdb = (struct scsi_get_config *)ctsio->cdb; 10229 rt = (cdb->rt & SGC_RT_MASK); 10230 starting = scsi_2btoul(cdb->starting_feature); 10231 alloc_len = scsi_2btoul(cdb->length); 10232 10233 data_len = sizeof(struct scsi_get_config_header) + 10234 sizeof(struct scsi_get_config_feature) + 8 + 10235 sizeof(struct scsi_get_config_feature) + 8 + 10236 sizeof(struct scsi_get_config_feature) + 4 + 10237 sizeof(struct scsi_get_config_feature) + 4 + 10238 sizeof(struct scsi_get_config_feature) + 8 + 10239 sizeof(struct scsi_get_config_feature) + 10240 sizeof(struct scsi_get_config_feature) + 4 + 10241 sizeof(struct scsi_get_config_feature) + 4 + 10242 sizeof(struct scsi_get_config_feature) + 4 + 10243 sizeof(struct scsi_get_config_feature) + 4 + 10244 sizeof(struct scsi_get_config_feature) + 4 + 10245 sizeof(struct scsi_get_config_feature) + 4; 10246 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10247 ctsio->kern_sg_entries = 0; 10248 ctsio->kern_rel_offset = 0; 10249 10250 hdr = (struct scsi_get_config_header *)ctsio->kern_data_ptr; 10251 if (lun->flags & CTL_LUN_NO_MEDIA) 10252 scsi_ulto2b(0x0000, hdr->current_profile); 10253 else 10254 scsi_ulto2b(0x0010, hdr->current_profile); 10255 feature = (struct scsi_get_config_feature *)(hdr + 1); 10256 10257 if (starting > 0x003b) 10258 goto done; 10259 if (starting > 0x003a) 10260 goto f3b; 10261 if (starting > 0x002b) 10262 goto f3a; 10263 if (starting > 0x002a) 10264 goto f2b; 10265 if (starting > 0x001f) 10266 goto f2a; 10267 if (starting > 0x001e) 10268 goto f1f; 10269 if (starting > 0x001d) 10270 goto f1e; 10271 if (starting > 0x0010) 10272 goto f1d; 10273 if (starting > 0x0003) 10274 goto f10; 10275 if (starting > 0x0002) 10276 goto f3; 10277 if (starting > 0x0001) 10278 goto f2; 10279 if (starting > 0x0000) 10280 goto f1; 10281 10282 /* Profile List */ 10283 scsi_ulto2b(0x0000, feature->feature_code); 10284 feature->flags = SGC_F_PERSISTENT | SGC_F_CURRENT; 10285 feature->add_length = 8; 10286 scsi_ulto2b(0x0008, &feature->feature_data[0]); /* CD-ROM */ 10287 feature->feature_data[2] = 0x00; 10288 scsi_ulto2b(0x0010, &feature->feature_data[4]); /* DVD-ROM */ 10289 feature->feature_data[6] = 0x01; 10290 feature = (struct scsi_get_config_feature *) 10291 &feature->feature_data[feature->add_length]; 10292 10293f1: /* Core */ 10294 scsi_ulto2b(0x0001, feature->feature_code); 10295 feature->flags = 0x08 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10296 feature->add_length = 8; 10297 scsi_ulto4b(0x00000000, &feature->feature_data[0]); 10298 feature->feature_data[4] = 0x03; 10299 feature = (struct scsi_get_config_feature *) 10300 &feature->feature_data[feature->add_length]; 10301 10302f2: /* Morphing */ 10303 scsi_ulto2b(0x0002, feature->feature_code); 10304 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10305 feature->add_length = 4; 10306 feature->feature_data[0] = 0x02; 10307 feature = (struct scsi_get_config_feature *) 10308 &feature->feature_data[feature->add_length]; 10309 10310f3: /* Removable Medium */ 10311 scsi_ulto2b(0x0003, feature->feature_code); 10312 feature->flags = 0x04 | SGC_F_PERSISTENT | SGC_F_CURRENT; 10313 feature->add_length = 4; 10314 feature->feature_data[0] = 0x39; 10315 feature = (struct scsi_get_config_feature *) 10316 &feature->feature_data[feature->add_length]; 10317 10318 if (rt == SGC_RT_CURRENT && (lun->flags & CTL_LUN_NO_MEDIA)) 10319 goto done; 10320 10321f10: /* Random Read */ 10322 scsi_ulto2b(0x0010, feature->feature_code); 10323 feature->flags = 0x00; 10324 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10325 feature->flags |= SGC_F_CURRENT; 10326 feature->add_length = 8; 10327 scsi_ulto4b(lun->be_lun->blocksize, &feature->feature_data[0]); 10328 scsi_ulto2b(1, &feature->feature_data[4]); 10329 feature->feature_data[6] = 0x00; 10330 feature = (struct scsi_get_config_feature *) 10331 &feature->feature_data[feature->add_length]; 10332 10333f1d: /* Multi-Read */ 10334 scsi_ulto2b(0x001D, feature->feature_code); 10335 feature->flags = 0x00; 10336 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10337 feature->flags |= SGC_F_CURRENT; 10338 feature->add_length = 0; 10339 feature = (struct scsi_get_config_feature *) 10340 &feature->feature_data[feature->add_length]; 10341 10342f1e: /* CD Read */ 10343 scsi_ulto2b(0x001E, feature->feature_code); 10344 feature->flags = 0x00; 10345 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10346 feature->flags |= SGC_F_CURRENT; 10347 feature->add_length = 4; 10348 feature->feature_data[0] = 0x00; 10349 feature = (struct scsi_get_config_feature *) 10350 &feature->feature_data[feature->add_length]; 10351 10352f1f: /* DVD Read */ 10353 scsi_ulto2b(0x001F, feature->feature_code); 10354 feature->flags = 0x08; 10355 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10356 feature->flags |= SGC_F_CURRENT; 10357 feature->add_length = 4; 10358 feature->feature_data[0] = 0x01; 10359 feature->feature_data[2] = 0x03; 10360 feature = (struct scsi_get_config_feature *) 10361 &feature->feature_data[feature->add_length]; 10362 10363f2a: /* DVD+RW */ 10364 scsi_ulto2b(0x002A, feature->feature_code); 10365 feature->flags = 0x04; 10366 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10367 feature->flags |= SGC_F_CURRENT; 10368 feature->add_length = 4; 10369 feature->feature_data[0] = 0x00; 10370 feature->feature_data[1] = 0x00; 10371 feature = (struct scsi_get_config_feature *) 10372 &feature->feature_data[feature->add_length]; 10373 10374f2b: /* DVD+R */ 10375 scsi_ulto2b(0x002B, feature->feature_code); 10376 feature->flags = 0x00; 10377 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10378 feature->flags |= SGC_F_CURRENT; 10379 feature->add_length = 4; 10380 feature->feature_data[0] = 0x00; 10381 feature = (struct scsi_get_config_feature *) 10382 &feature->feature_data[feature->add_length]; 10383 10384f3a: /* DVD+RW Dual Layer */ 10385 scsi_ulto2b(0x003A, feature->feature_code); 10386 feature->flags = 0x00; 10387 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10388 feature->flags |= SGC_F_CURRENT; 10389 feature->add_length = 4; 10390 feature->feature_data[0] = 0x00; 10391 feature->feature_data[1] = 0x00; 10392 feature = (struct scsi_get_config_feature *) 10393 &feature->feature_data[feature->add_length]; 10394 10395f3b: /* DVD+R Dual Layer */ 10396 scsi_ulto2b(0x003B, feature->feature_code); 10397 feature->flags = 0x00; 10398 if ((lun->flags & CTL_LUN_NO_MEDIA) == 0) 10399 feature->flags |= SGC_F_CURRENT; 10400 feature->add_length = 4; 10401 feature->feature_data[0] = 0x00; 10402 feature = (struct scsi_get_config_feature *) 10403 &feature->feature_data[feature->add_length]; 10404 10405done: 10406 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10407 if (rt == SGC_RT_SPECIFIC && data_len > 4) { 10408 feature = (struct scsi_get_config_feature *)(hdr + 1); 10409 if (scsi_2btoul(feature->feature_code) == starting) 10410 feature = (struct scsi_get_config_feature *) 10411 &feature->feature_data[feature->add_length]; 10412 data_len = (uint8_t *)feature - (uint8_t *)hdr; 10413 } 10414 scsi_ulto4b(data_len - 4, hdr->data_length); 10415 ctsio->kern_data_len = min(data_len, alloc_len); 10416 ctsio->kern_total_len = ctsio->kern_data_len; 10417 10418 ctl_set_success(ctsio); 10419 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10420 ctsio->be_move_done = ctl_config_move_done; 10421 ctl_datamove((union ctl_io *)ctsio); 10422 return (CTL_RETVAL_COMPLETE); 10423} 10424 10425int 10426ctl_get_event_status(struct ctl_scsiio *ctsio) 10427{ 10428 struct scsi_get_event_status_header *hdr; 10429 struct scsi_get_event_status *cdb; 10430 uint32_t alloc_len, data_len; 10431 int notif_class; 10432 10433 cdb = (struct scsi_get_event_status *)ctsio->cdb; 10434 if ((cdb->byte2 & SGESN_POLLED) == 0) { 10435 ctl_set_invalid_field(ctsio, /*sks_valid*/ 1, /*command*/ 1, 10436 /*field*/ 1, /*bit_valid*/ 1, /*bit*/ 0); 10437 ctl_done((union ctl_io *)ctsio); 10438 return (CTL_RETVAL_COMPLETE); 10439 } 10440 notif_class = cdb->notif_class; 10441 alloc_len = scsi_2btoul(cdb->length); 10442 10443 data_len = sizeof(struct scsi_get_event_status_header); 10444 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10445 ctsio->kern_sg_entries = 0; 10446 ctsio->kern_rel_offset = 0; 10447 ctsio->kern_data_len = min(data_len, alloc_len); 10448 ctsio->kern_total_len = ctsio->kern_data_len; 10449 10450 hdr = (struct scsi_get_event_status_header *)ctsio->kern_data_ptr; 10451 scsi_ulto2b(0, hdr->descr_length); 10452 hdr->nea_class = SGESN_NEA; 10453 hdr->supported_class = 0; 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 10462int 10463ctl_mechanism_status(struct ctl_scsiio *ctsio) 10464{ 10465 struct scsi_mechanism_status_header *hdr; 10466 struct scsi_mechanism_status *cdb; 10467 uint32_t alloc_len, data_len; 10468 10469 cdb = (struct scsi_mechanism_status *)ctsio->cdb; 10470 alloc_len = scsi_2btoul(cdb->length); 10471 10472 data_len = sizeof(struct scsi_mechanism_status_header); 10473 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10474 ctsio->kern_sg_entries = 0; 10475 ctsio->kern_rel_offset = 0; 10476 ctsio->kern_data_len = min(data_len, alloc_len); 10477 ctsio->kern_total_len = ctsio->kern_data_len; 10478 10479 hdr = (struct scsi_mechanism_status_header *)ctsio->kern_data_ptr; 10480 hdr->state1 = 0x00; 10481 hdr->state2 = 0xe0; 10482 scsi_ulto3b(0, hdr->lba); 10483 hdr->slots_num = 0; 10484 scsi_ulto2b(0, hdr->slots_length); 10485 10486 ctl_set_success(ctsio); 10487 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10488 ctsio->be_move_done = ctl_config_move_done; 10489 ctl_datamove((union ctl_io *)ctsio); 10490 return (CTL_RETVAL_COMPLETE); 10491} 10492 10493static void 10494ctl_ultomsf(uint32_t lba, uint8_t *buf) 10495{ 10496 10497 lba += 150; 10498 buf[0] = 0; 10499 buf[1] = bin2bcd((lba / 75) / 60); 10500 buf[2] = bin2bcd((lba / 75) % 60); 10501 buf[3] = bin2bcd(lba % 75); 10502} 10503 10504int 10505ctl_read_toc(struct ctl_scsiio *ctsio) 10506{ 10507 struct ctl_lun *lun = CTL_LUN(ctsio); 10508 struct scsi_read_toc_hdr *hdr; 10509 struct scsi_read_toc_type01_descr *descr; 10510 struct scsi_read_toc *cdb; 10511 uint32_t alloc_len, data_len; 10512 int format, msf; 10513 10514 cdb = (struct scsi_read_toc *)ctsio->cdb; 10515 msf = (cdb->byte2 & CD_MSF) != 0; 10516 format = cdb->format; 10517 alloc_len = scsi_2btoul(cdb->data_len); 10518 10519 data_len = sizeof(struct scsi_read_toc_hdr); 10520 if (format == 0) 10521 data_len += 2 * sizeof(struct scsi_read_toc_type01_descr); 10522 else 10523 data_len += sizeof(struct scsi_read_toc_type01_descr); 10524 ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO); 10525 ctsio->kern_sg_entries = 0; 10526 ctsio->kern_rel_offset = 0; 10527 ctsio->kern_data_len = min(data_len, alloc_len); 10528 ctsio->kern_total_len = ctsio->kern_data_len; 10529 10530 hdr = (struct scsi_read_toc_hdr *)ctsio->kern_data_ptr; 10531 if (format == 0) { 10532 scsi_ulto2b(0x12, hdr->data_length); 10533 hdr->first = 1; 10534 hdr->last = 1; 10535 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10536 descr->addr_ctl = 0x14; 10537 descr->track_number = 1; 10538 if (msf) 10539 ctl_ultomsf(0, descr->track_start); 10540 else 10541 scsi_ulto4b(0, descr->track_start); 10542 descr++; 10543 descr->addr_ctl = 0x14; 10544 descr->track_number = 0xaa; 10545 if (msf) 10546 ctl_ultomsf(lun->be_lun->maxlba+1, descr->track_start); 10547 else 10548 scsi_ulto4b(lun->be_lun->maxlba+1, descr->track_start); 10549 } else { 10550 scsi_ulto2b(0x0a, hdr->data_length); 10551 hdr->first = 1; 10552 hdr->last = 1; 10553 descr = (struct scsi_read_toc_type01_descr *)(hdr + 1); 10554 descr->addr_ctl = 0x14; 10555 descr->track_number = 1; 10556 if (msf) 10557 ctl_ultomsf(0, descr->track_start); 10558 else 10559 scsi_ulto4b(0, descr->track_start); 10560 } 10561 10562 ctl_set_success(ctsio); 10563 ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED; 10564 ctsio->be_move_done = ctl_config_move_done; 10565 ctl_datamove((union ctl_io *)ctsio); 10566 return (CTL_RETVAL_COMPLETE); 10567} 10568 10569/* 10570 * For known CDB types, parse the LBA and length. 10571 */ 10572static int 10573ctl_get_lba_len(union ctl_io *io, uint64_t *lba, uint64_t *len) 10574{ 10575 if (io->io_hdr.io_type != CTL_IO_SCSI) 10576 return (1); 10577 10578 switch (io->scsiio.cdb[0]) { 10579 case COMPARE_AND_WRITE: { 10580 struct scsi_compare_and_write *cdb; 10581 10582 cdb = (struct scsi_compare_and_write *)io->scsiio.cdb; 10583 10584 *lba = scsi_8btou64(cdb->addr); 10585 *len = cdb->length; 10586 break; 10587 } 10588 case READ_6: 10589 case WRITE_6: { 10590 struct scsi_rw_6 *cdb; 10591 10592 cdb = (struct scsi_rw_6 *)io->scsiio.cdb; 10593 10594 *lba = scsi_3btoul(cdb->addr); 10595 /* only 5 bits are valid in the most significant address byte */ 10596 *lba &= 0x1fffff; 10597 *len = cdb->length; 10598 break; 10599 } 10600 case READ_10: 10601 case WRITE_10: { 10602 struct scsi_rw_10 *cdb; 10603 10604 cdb = (struct scsi_rw_10 *)io->scsiio.cdb; 10605 10606 *lba = scsi_4btoul(cdb->addr); 10607 *len = scsi_2btoul(cdb->length); 10608 break; 10609 } 10610 case WRITE_VERIFY_10: { 10611 struct scsi_write_verify_10 *cdb; 10612 10613 cdb = (struct scsi_write_verify_10 *)io->scsiio.cdb; 10614 10615 *lba = scsi_4btoul(cdb->addr); 10616 *len = scsi_2btoul(cdb->length); 10617 break; 10618 } 10619 case READ_12: 10620 case WRITE_12: { 10621 struct scsi_rw_12 *cdb; 10622 10623 cdb = (struct scsi_rw_12 *)io->scsiio.cdb; 10624 10625 *lba = scsi_4btoul(cdb->addr); 10626 *len = scsi_4btoul(cdb->length); 10627 break; 10628 } 10629 case WRITE_VERIFY_12: { 10630 struct scsi_write_verify_12 *cdb; 10631 10632 cdb = (struct scsi_write_verify_12 *)io->scsiio.cdb; 10633 10634 *lba = scsi_4btoul(cdb->addr); 10635 *len = scsi_4btoul(cdb->length); 10636 break; 10637 } 10638 case READ_16: 10639 case WRITE_16: { 10640 struct scsi_rw_16 *cdb; 10641 10642 cdb = (struct scsi_rw_16 *)io->scsiio.cdb; 10643 10644 *lba = scsi_8btou64(cdb->addr); 10645 *len = scsi_4btoul(cdb->length); 10646 break; 10647 } 10648 case WRITE_ATOMIC_16: { 10649 struct scsi_write_atomic_16 *cdb; 10650 10651 cdb = (struct scsi_write_atomic_16 *)io->scsiio.cdb; 10652 10653 *lba = scsi_8btou64(cdb->addr); 10654 *len = scsi_2btoul(cdb->length); 10655 break; 10656 } 10657 case WRITE_VERIFY_16: { 10658 struct scsi_write_verify_16 *cdb; 10659 10660 cdb = (struct scsi_write_verify_16 *)io->scsiio.cdb; 10661 10662 *lba = scsi_8btou64(cdb->addr); 10663 *len = scsi_4btoul(cdb->length); 10664 break; 10665 } 10666 case WRITE_SAME_10: { 10667 struct scsi_write_same_10 *cdb; 10668 10669 cdb = (struct scsi_write_same_10 *)io->scsiio.cdb; 10670 10671 *lba = scsi_4btoul(cdb->addr); 10672 *len = scsi_2btoul(cdb->length); 10673 break; 10674 } 10675 case WRITE_SAME_16: { 10676 struct scsi_write_same_16 *cdb; 10677 10678 cdb = (struct scsi_write_same_16 *)io->scsiio.cdb; 10679 10680 *lba = scsi_8btou64(cdb->addr); 10681 *len = scsi_4btoul(cdb->length); 10682 break; 10683 } 10684 case VERIFY_10: { 10685 struct scsi_verify_10 *cdb; 10686 10687 cdb = (struct scsi_verify_10 *)io->scsiio.cdb; 10688 10689 *lba = scsi_4btoul(cdb->addr); 10690 *len = scsi_2btoul(cdb->length); 10691 break; 10692 } 10693 case VERIFY_12: { 10694 struct scsi_verify_12 *cdb; 10695 10696 cdb = (struct scsi_verify_12 *)io->scsiio.cdb; 10697 10698 *lba = scsi_4btoul(cdb->addr); 10699 *len = scsi_4btoul(cdb->length); 10700 break; 10701 } 10702 case VERIFY_16: { 10703 struct scsi_verify_16 *cdb; 10704 10705 cdb = (struct scsi_verify_16 *)io->scsiio.cdb; 10706 10707 *lba = scsi_8btou64(cdb->addr); 10708 *len = scsi_4btoul(cdb->length); 10709 break; 10710 } 10711 case UNMAP: { 10712 *lba = 0; 10713 *len = UINT64_MAX; 10714 break; 10715 } 10716 case SERVICE_ACTION_IN: { /* GET LBA STATUS */ 10717 struct scsi_get_lba_status *cdb; 10718 10719 cdb = (struct scsi_get_lba_status *)io->scsiio.cdb; 10720 *lba = scsi_8btou64(cdb->addr); 10721 *len = UINT32_MAX; 10722 break; 10723 } 10724 default: 10725 return (1); 10726 break; /* NOTREACHED */ 10727 } 10728 10729 return (0); 10730} 10731 10732static ctl_action 10733ctl_extent_check_lba(uint64_t lba1, uint64_t len1, uint64_t lba2, uint64_t len2, 10734 bool seq) 10735{ 10736 uint64_t endlba1, endlba2; 10737 10738 endlba1 = lba1 + len1 - (seq ? 0 : 1); 10739 endlba2 = lba2 + len2 - 1; 10740 10741 if ((endlba1 < lba2) || (endlba2 < lba1)) 10742 return (CTL_ACTION_PASS); 10743 else 10744 return (CTL_ACTION_BLOCK); 10745} 10746 10747static int 10748ctl_extent_check_unmap(union ctl_io *io, uint64_t lba2, uint64_t len2) 10749{ 10750 struct ctl_ptr_len_flags *ptrlen; 10751 struct scsi_unmap_desc *buf, *end, *range; 10752 uint64_t lba; 10753 uint32_t len; 10754 10755 /* If not UNMAP -- go other way. */ 10756 if (io->io_hdr.io_type != CTL_IO_SCSI || 10757 io->scsiio.cdb[0] != UNMAP) 10758 return (CTL_ACTION_ERROR); 10759 10760 /* If UNMAP without data -- block and wait for data. */ 10761 ptrlen = (struct ctl_ptr_len_flags *) 10762 &io->io_hdr.ctl_private[CTL_PRIV_LBA_LEN]; 10763 if ((io->io_hdr.flags & CTL_FLAG_ALLOCATED) == 0 || 10764 ptrlen->ptr == NULL) 10765 return (CTL_ACTION_BLOCK); 10766 10767 /* UNMAP with data -- check for collision. */ 10768 buf = (struct scsi_unmap_desc *)ptrlen->ptr; 10769 end = buf + ptrlen->len / sizeof(*buf); 10770 for (range = buf; range < end; range++) { 10771 lba = scsi_8btou64(range->lba); 10772 len = scsi_4btoul(range->length); 10773 if ((lba < lba2 + len2) && (lba + len > lba2)) 10774 return (CTL_ACTION_BLOCK); 10775 } 10776 return (CTL_ACTION_PASS); 10777} 10778 10779static ctl_action 10780ctl_extent_check(union ctl_io *io1, union ctl_io *io2, bool seq) 10781{ 10782 uint64_t lba1, lba2; 10783 uint64_t len1, len2; 10784 int retval; 10785 10786 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10787 return (CTL_ACTION_ERROR); 10788 10789 retval = ctl_extent_check_unmap(io1, lba2, len2); 10790 if (retval != CTL_ACTION_ERROR) 10791 return (retval); 10792 10793 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10794 return (CTL_ACTION_ERROR); 10795 10796 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10797 seq = FALSE; 10798 return (ctl_extent_check_lba(lba1, len1, lba2, len2, seq)); 10799} 10800 10801static ctl_action 10802ctl_extent_check_seq(union ctl_io *io1, union ctl_io *io2) 10803{ 10804 uint64_t lba1, lba2; 10805 uint64_t len1, len2; 10806 10807 if (io1->io_hdr.flags & CTL_FLAG_SERSEQ_DONE) 10808 return (CTL_ACTION_PASS); 10809 if (ctl_get_lba_len(io1, &lba1, &len1) != 0) 10810 return (CTL_ACTION_ERROR); 10811 if (ctl_get_lba_len(io2, &lba2, &len2) != 0) 10812 return (CTL_ACTION_ERROR); 10813 10814 if (lba1 + len1 == lba2) 10815 return (CTL_ACTION_BLOCK); 10816 return (CTL_ACTION_PASS); 10817} 10818 10819static ctl_action 10820ctl_check_for_blockage(struct ctl_lun *lun, union ctl_io *pending_io, 10821 union ctl_io *ooa_io) 10822{ 10823 const struct ctl_cmd_entry *pending_entry, *ooa_entry; 10824 const ctl_serialize_action *serialize_row; 10825 10826 /* 10827 * The initiator attempted multiple untagged commands at the same 10828 * time. Can't do that. 10829 */ 10830 if ((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10831 && (ooa_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10832 && ((pending_io->io_hdr.nexus.targ_port == 10833 ooa_io->io_hdr.nexus.targ_port) 10834 && (pending_io->io_hdr.nexus.initid == 10835 ooa_io->io_hdr.nexus.initid)) 10836 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10837 CTL_FLAG_STATUS_SENT)) == 0)) 10838 return (CTL_ACTION_OVERLAP); 10839 10840 /* 10841 * The initiator attempted to send multiple tagged commands with 10842 * the same ID. (It's fine if different initiators have the same 10843 * tag ID.) 10844 * 10845 * Even if all of those conditions are true, we don't kill the I/O 10846 * if the command ahead of us has been aborted. We won't end up 10847 * sending it to the FETD, and it's perfectly legal to resend a 10848 * command with the same tag number as long as the previous 10849 * instance of this tag number has been aborted somehow. 10850 */ 10851 if ((pending_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10852 && (ooa_io->scsiio.tag_type != CTL_TAG_UNTAGGED) 10853 && (pending_io->scsiio.tag_num == ooa_io->scsiio.tag_num) 10854 && ((pending_io->io_hdr.nexus.targ_port == 10855 ooa_io->io_hdr.nexus.targ_port) 10856 && (pending_io->io_hdr.nexus.initid == 10857 ooa_io->io_hdr.nexus.initid)) 10858 && ((ooa_io->io_hdr.flags & (CTL_FLAG_ABORT | 10859 CTL_FLAG_STATUS_SENT)) == 0)) 10860 return (CTL_ACTION_OVERLAP_TAG); 10861 10862 /* 10863 * If we get a head of queue tag, SAM-3 says that we should 10864 * immediately execute it. 10865 * 10866 * What happens if this command would normally block for some other 10867 * reason? e.g. a request sense with a head of queue tag 10868 * immediately after a write. Normally that would block, but this 10869 * will result in its getting executed immediately... 10870 * 10871 * We currently return "pass" instead of "skip", so we'll end up 10872 * going through the rest of the queue to check for overlapped tags. 10873 * 10874 * XXX KDM check for other types of blockage first?? 10875 */ 10876 if (pending_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10877 return (CTL_ACTION_PASS); 10878 10879 /* 10880 * Ordered tags have to block until all items ahead of them 10881 * have completed. If we get called with an ordered tag, we always 10882 * block, if something else is ahead of us in the queue. 10883 */ 10884 if (pending_io->scsiio.tag_type == CTL_TAG_ORDERED) 10885 return (CTL_ACTION_BLOCK); 10886 10887 /* 10888 * Simple tags get blocked until all head of queue and ordered tags 10889 * ahead of them have completed. I'm lumping untagged commands in 10890 * with simple tags here. XXX KDM is that the right thing to do? 10891 */ 10892 if (((pending_io->scsiio.tag_type == CTL_TAG_UNTAGGED) 10893 || (pending_io->scsiio.tag_type == CTL_TAG_SIMPLE)) 10894 && ((ooa_io->scsiio.tag_type == CTL_TAG_HEAD_OF_QUEUE) 10895 || (ooa_io->scsiio.tag_type == CTL_TAG_ORDERED))) 10896 return (CTL_ACTION_BLOCK); 10897 10898 pending_entry = ctl_get_cmd_entry(&pending_io->scsiio, NULL); 10899 KASSERT(pending_entry->seridx < CTL_SERIDX_COUNT, 10900 ("%s: Invalid seridx %d for pending CDB %02x %02x @ %p", 10901 __func__, pending_entry->seridx, pending_io->scsiio.cdb[0], 10902 pending_io->scsiio.cdb[1], pending_io)); 10903 ooa_entry = ctl_get_cmd_entry(&ooa_io->scsiio, NULL); 10904 if (ooa_entry->seridx == CTL_SERIDX_INVLD) 10905 return (CTL_ACTION_PASS); /* Unsupported command in OOA queue */ 10906 KASSERT(ooa_entry->seridx < CTL_SERIDX_COUNT, 10907 ("%s: Invalid seridx %d for ooa CDB %02x %02x @ %p", 10908 __func__, ooa_entry->seridx, ooa_io->scsiio.cdb[0], 10909 ooa_io->scsiio.cdb[1], ooa_io)); 10910 10911 serialize_row = ctl_serialize_table[ooa_entry->seridx]; 10912 10913 switch (serialize_row[pending_entry->seridx]) { 10914 case CTL_SER_BLOCK: 10915 return (CTL_ACTION_BLOCK); 10916 case CTL_SER_EXTENT: 10917 return (ctl_extent_check(ooa_io, pending_io, 10918 (lun->be_lun && lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 10919 case CTL_SER_EXTENTOPT: 10920 if ((lun->MODE_CTRL.queue_flags & SCP_QUEUE_ALG_MASK) != 10921 SCP_QUEUE_ALG_UNRESTRICTED) 10922 return (ctl_extent_check(ooa_io, pending_io, 10923 (lun->be_lun && 10924 lun->be_lun->serseq == CTL_LUN_SERSEQ_ON))); 10925 return (CTL_ACTION_PASS); 10926 case CTL_SER_EXTENTSEQ: 10927 if (lun->be_lun && lun->be_lun->serseq != CTL_LUN_SERSEQ_OFF) 10928 return (ctl_extent_check_seq(ooa_io, pending_io)); 10929 return (CTL_ACTION_PASS); 10930 case CTL_SER_PASS: 10931 return (CTL_ACTION_PASS); 10932 case CTL_SER_BLOCKOPT: 10933 if ((lun->MODE_CTRL.queue_flags & SCP_QUEUE_ALG_MASK) != 10934 SCP_QUEUE_ALG_UNRESTRICTED) 10935 return (CTL_ACTION_BLOCK); 10936 return (CTL_ACTION_PASS); 10937 case CTL_SER_SKIP: 10938 return (CTL_ACTION_SKIP); 10939 default: 10940 panic("%s: Invalid serialization value %d for %d => %d", 10941 __func__, serialize_row[pending_entry->seridx], 10942 pending_entry->seridx, ooa_entry->seridx); 10943 } 10944 10945 return (CTL_ACTION_ERROR); 10946} 10947 10948/* 10949 * Check for blockage or overlaps against the OOA (Order Of Arrival) queue. 10950 * Assumptions: 10951 * - pending_io is generally either incoming, or on the blocked queue 10952 * - starting I/O is the I/O we want to start the check with. 10953 */ 10954static ctl_action 10955ctl_check_ooa(struct ctl_lun *lun, union ctl_io *pending_io, 10956 union ctl_io *starting_io) 10957{ 10958 union ctl_io *ooa_io; 10959 ctl_action action; 10960 10961 mtx_assert(&lun->lun_lock, MA_OWNED); 10962 10963 /* 10964 * Run back along the OOA queue, starting with the current 10965 * blocked I/O and going through every I/O before it on the 10966 * queue. If starting_io is NULL, we'll just end up returning 10967 * CTL_ACTION_PASS. 10968 */ 10969 for (ooa_io = starting_io; ooa_io != NULL; 10970 ooa_io = (union ctl_io *)TAILQ_PREV(&ooa_io->io_hdr, ctl_ooaq, 10971 ooa_links)){ 10972 10973 /* 10974 * This routine just checks to see whether 10975 * cur_blocked is blocked by ooa_io, which is ahead 10976 * of it in the queue. It doesn't queue/dequeue 10977 * cur_blocked. 10978 */ 10979 action = ctl_check_for_blockage(lun, pending_io, ooa_io); 10980 switch (action) { 10981 case CTL_ACTION_BLOCK: 10982 case CTL_ACTION_OVERLAP: 10983 case CTL_ACTION_OVERLAP_TAG: 10984 case CTL_ACTION_SKIP: 10985 case CTL_ACTION_ERROR: 10986 return (action); 10987 break; /* NOTREACHED */ 10988 case CTL_ACTION_PASS: 10989 break; 10990 default: 10991 panic("%s: Invalid action %d\n", __func__, action); 10992 } 10993 } 10994 10995 return (CTL_ACTION_PASS); 10996} 10997 10998/* 10999 * Assumptions: 11000 * - An I/O has just completed, and has been removed from the per-LUN OOA 11001 * queue, so some items on the blocked queue may now be unblocked. 11002 */ 11003static int 11004ctl_check_blocked(struct ctl_lun *lun) 11005{ 11006 struct ctl_softc *softc = lun->ctl_softc; 11007 union ctl_io *cur_blocked, *next_blocked; 11008 11009 mtx_assert(&lun->lun_lock, MA_OWNED); 11010 11011 /* 11012 * Run forward from the head of the blocked queue, checking each 11013 * entry against the I/Os prior to it on the OOA queue to see if 11014 * there is still any blockage. 11015 * 11016 * We cannot use the TAILQ_FOREACH() macro, because it can't deal 11017 * with our removing a variable on it while it is traversing the 11018 * list. 11019 */ 11020 for (cur_blocked = (union ctl_io *)TAILQ_FIRST(&lun->blocked_queue); 11021 cur_blocked != NULL; cur_blocked = next_blocked) { 11022 union ctl_io *prev_ooa; 11023 ctl_action action; 11024 11025 next_blocked = (union ctl_io *)TAILQ_NEXT(&cur_blocked->io_hdr, 11026 blocked_links); 11027 11028 prev_ooa = (union ctl_io *)TAILQ_PREV(&cur_blocked->io_hdr, 11029 ctl_ooaq, ooa_links); 11030 11031 /* 11032 * If cur_blocked happens to be the first item in the OOA 11033 * queue now, prev_ooa will be NULL, and the action 11034 * returned will just be CTL_ACTION_PASS. 11035 */ 11036 action = ctl_check_ooa(lun, cur_blocked, prev_ooa); 11037 11038 switch (action) { 11039 case CTL_ACTION_BLOCK: 11040 /* Nothing to do here, still blocked */ 11041 break; 11042 case CTL_ACTION_OVERLAP: 11043 case CTL_ACTION_OVERLAP_TAG: 11044 /* 11045 * This shouldn't happen! In theory we've already 11046 * checked this command for overlap... 11047 */ 11048 break; 11049 case CTL_ACTION_PASS: 11050 case CTL_ACTION_SKIP: { 11051 const struct ctl_cmd_entry *entry; 11052 11053 /* 11054 * The skip case shouldn't happen, this transaction 11055 * should have never made it onto the blocked queue. 11056 */ 11057 /* 11058 * This I/O is no longer blocked, we can remove it 11059 * from the blocked queue. Since this is a TAILQ 11060 * (doubly linked list), we can do O(1) removals 11061 * from any place on the list. 11062 */ 11063 TAILQ_REMOVE(&lun->blocked_queue, &cur_blocked->io_hdr, 11064 blocked_links); 11065 cur_blocked->io_hdr.flags &= ~CTL_FLAG_BLOCKED; 11066 11067 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 11068 (cur_blocked->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)){ 11069 /* 11070 * Need to send IO back to original side to 11071 * run 11072 */ 11073 union ctl_ha_msg msg_info; 11074 11075 cur_blocked->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11076 msg_info.hdr.original_sc = 11077 cur_blocked->io_hdr.remote_io; 11078 msg_info.hdr.serializing_sc = cur_blocked; 11079 msg_info.hdr.msg_type = CTL_MSG_R2R; 11080 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11081 sizeof(msg_info.hdr), M_NOWAIT); 11082 break; 11083 } 11084 entry = ctl_get_cmd_entry(&cur_blocked->scsiio, NULL); 11085 11086 /* 11087 * Check this I/O for LUN state changes that may 11088 * have happened while this command was blocked. 11089 * The LUN state may have been changed by a command 11090 * ahead of us in the queue, so we need to re-check 11091 * for any states that can be caused by SCSI 11092 * commands. 11093 */ 11094 if (ctl_scsiio_lun_check(lun, entry, 11095 &cur_blocked->scsiio) == 0) { 11096 cur_blocked->io_hdr.flags |= 11097 CTL_FLAG_IS_WAS_ON_RTR; 11098 ctl_enqueue_rtr(cur_blocked); 11099 } else 11100 ctl_done(cur_blocked); 11101 break; 11102 } 11103 default: 11104 /* 11105 * This probably shouldn't happen -- we shouldn't 11106 * get CTL_ACTION_ERROR, or anything else. 11107 */ 11108 break; 11109 } 11110 } 11111 11112 return (CTL_RETVAL_COMPLETE); 11113} 11114 11115/* 11116 * This routine (with one exception) checks LUN flags that can be set by 11117 * commands ahead of us in the OOA queue. These flags have to be checked 11118 * when a command initially comes in, and when we pull a command off the 11119 * blocked queue and are preparing to execute it. The reason we have to 11120 * check these flags for commands on the blocked queue is that the LUN 11121 * state may have been changed by a command ahead of us while we're on the 11122 * blocked queue. 11123 * 11124 * Ordering is somewhat important with these checks, so please pay 11125 * careful attention to the placement of any new checks. 11126 */ 11127static int 11128ctl_scsiio_lun_check(struct ctl_lun *lun, 11129 const struct ctl_cmd_entry *entry, struct ctl_scsiio *ctsio) 11130{ 11131 struct ctl_softc *softc = lun->ctl_softc; 11132 int retval; 11133 uint32_t residx; 11134 11135 retval = 0; 11136 11137 mtx_assert(&lun->lun_lock, MA_OWNED); 11138 11139 /* 11140 * If this shelf is a secondary shelf controller, we may have to 11141 * reject some commands disallowed by HA mode and link state. 11142 */ 11143 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0) { 11144 if (softc->ha_link == CTL_HA_LINK_OFFLINE && 11145 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11146 ctl_set_lun_unavail(ctsio); 11147 retval = 1; 11148 goto bailout; 11149 } 11150 if ((lun->flags & CTL_LUN_PEER_SC_PRIMARY) == 0 && 11151 (entry->flags & CTL_CMD_FLAG_OK_ON_UNAVAIL) == 0) { 11152 ctl_set_lun_transit(ctsio); 11153 retval = 1; 11154 goto bailout; 11155 } 11156 if (softc->ha_mode == CTL_HA_MODE_ACT_STBY && 11157 (entry->flags & CTL_CMD_FLAG_OK_ON_STANDBY) == 0) { 11158 ctl_set_lun_standby(ctsio); 11159 retval = 1; 11160 goto bailout; 11161 } 11162 11163 /* The rest of checks are only done on executing side */ 11164 if (softc->ha_mode == CTL_HA_MODE_XFER) 11165 goto bailout; 11166 } 11167 11168 if (entry->pattern & CTL_LUN_PAT_WRITE) { 11169 if (lun->be_lun && 11170 lun->be_lun->flags & CTL_LUN_FLAG_READONLY) { 11171 ctl_set_hw_write_protected(ctsio); 11172 retval = 1; 11173 goto bailout; 11174 } 11175 if ((lun->MODE_CTRL.eca_and_aen & SCP_SWP) != 0) { 11176 ctl_set_sense(ctsio, /*current_error*/ 1, 11177 /*sense_key*/ SSD_KEY_DATA_PROTECT, 11178 /*asc*/ 0x27, /*ascq*/ 0x02, SSD_ELEM_NONE); 11179 retval = 1; 11180 goto bailout; 11181 } 11182 } 11183 11184 /* 11185 * Check for a reservation conflict. If this command isn't allowed 11186 * even on reserved LUNs, and if this initiator isn't the one who 11187 * reserved us, reject the command with a reservation conflict. 11188 */ 11189 residx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11190 if ((lun->flags & CTL_LUN_RESERVED) 11191 && ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_RESV) == 0)) { 11192 if (lun->res_idx != residx) { 11193 ctl_set_reservation_conflict(ctsio); 11194 retval = 1; 11195 goto bailout; 11196 } 11197 } 11198 11199 if ((lun->flags & CTL_LUN_PR_RESERVED) == 0 || 11200 (entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_RESV)) { 11201 /* No reservation or command is allowed. */; 11202 } else if ((entry->flags & CTL_CMD_FLAG_ALLOW_ON_PR_WRESV) && 11203 (lun->pr_res_type == SPR_TYPE_WR_EX || 11204 lun->pr_res_type == SPR_TYPE_WR_EX_RO || 11205 lun->pr_res_type == SPR_TYPE_WR_EX_AR)) { 11206 /* The command is allowed for Write Exclusive resv. */; 11207 } else { 11208 /* 11209 * if we aren't registered or it's a res holder type 11210 * reservation and this isn't the res holder then set a 11211 * conflict. 11212 */ 11213 if (ctl_get_prkey(lun, residx) == 0 || 11214 (residx != lun->pr_res_idx && lun->pr_res_type < 4)) { 11215 ctl_set_reservation_conflict(ctsio); 11216 retval = 1; 11217 goto bailout; 11218 } 11219 } 11220 11221 if ((entry->flags & CTL_CMD_FLAG_OK_ON_NO_MEDIA) == 0) { 11222 if (lun->flags & CTL_LUN_EJECTED) 11223 ctl_set_lun_ejected(ctsio); 11224 else if (lun->flags & CTL_LUN_NO_MEDIA) { 11225 if (lun->flags & CTL_LUN_REMOVABLE) 11226 ctl_set_lun_no_media(ctsio); 11227 else 11228 ctl_set_lun_int_reqd(ctsio); 11229 } else if (lun->flags & CTL_LUN_STOPPED) 11230 ctl_set_lun_stopped(ctsio); 11231 else 11232 goto bailout; 11233 retval = 1; 11234 goto bailout; 11235 } 11236 11237bailout: 11238 return (retval); 11239} 11240 11241static void 11242ctl_failover_io(union ctl_io *io, int have_lock) 11243{ 11244 ctl_set_busy(&io->scsiio); 11245 ctl_done(io); 11246} 11247 11248static void 11249ctl_failover_lun(union ctl_io *rio) 11250{ 11251 struct ctl_softc *softc = CTL_SOFTC(rio); 11252 struct ctl_lun *lun; 11253 struct ctl_io_hdr *io, *next_io; 11254 uint32_t targ_lun; 11255 11256 targ_lun = rio->io_hdr.nexus.targ_mapped_lun; 11257 CTL_DEBUG_PRINT(("FAILOVER for lun %ju\n", targ_lun)); 11258 11259 /* Find and lock the LUN. */ 11260 mtx_lock(&softc->ctl_lock); 11261 if (targ_lun > ctl_max_luns || 11262 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11263 mtx_unlock(&softc->ctl_lock); 11264 return; 11265 } 11266 mtx_lock(&lun->lun_lock); 11267 mtx_unlock(&softc->ctl_lock); 11268 if (lun->flags & CTL_LUN_DISABLED) { 11269 mtx_unlock(&lun->lun_lock); 11270 return; 11271 } 11272 11273 if (softc->ha_mode == CTL_HA_MODE_XFER) { 11274 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11275 /* We are master */ 11276 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11277 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11278 io->flags |= CTL_FLAG_ABORT; 11279 io->flags |= CTL_FLAG_FAILOVER; 11280 } else { /* This can be only due to DATAMOVE */ 11281 io->msg_type = CTL_MSG_DATAMOVE_DONE; 11282 io->flags &= ~CTL_FLAG_DMA_INPROG; 11283 io->flags |= CTL_FLAG_IO_ACTIVE; 11284 io->port_status = 31340; 11285 ctl_enqueue_isc((union ctl_io *)io); 11286 } 11287 } 11288 /* We are slave */ 11289 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11290 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11291 if (io->flags & CTL_FLAG_IO_ACTIVE) { 11292 io->flags |= CTL_FLAG_FAILOVER; 11293 } else { 11294 ctl_set_busy(&((union ctl_io *)io)-> 11295 scsiio); 11296 ctl_done((union ctl_io *)io); 11297 } 11298 } 11299 } 11300 } else { /* SERIALIZE modes */ 11301 TAILQ_FOREACH_SAFE(io, &lun->blocked_queue, blocked_links, 11302 next_io) { 11303 /* We are master */ 11304 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11305 TAILQ_REMOVE(&lun->blocked_queue, io, 11306 blocked_links); 11307 io->flags &= ~CTL_FLAG_BLOCKED; 11308 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11309 ctl_free_io((union ctl_io *)io); 11310 } 11311 } 11312 TAILQ_FOREACH_SAFE(io, &lun->ooa_queue, ooa_links, next_io) { 11313 /* We are master */ 11314 if (io->flags & CTL_FLAG_FROM_OTHER_SC) { 11315 TAILQ_REMOVE(&lun->ooa_queue, io, ooa_links); 11316 ctl_free_io((union ctl_io *)io); 11317 } 11318 /* We are slave */ 11319 if (io->flags & CTL_FLAG_SENT_2OTHER_SC) { 11320 io->flags &= ~CTL_FLAG_SENT_2OTHER_SC; 11321 if (!(io->flags & CTL_FLAG_IO_ACTIVE)) { 11322 ctl_set_busy(&((union ctl_io *)io)-> 11323 scsiio); 11324 ctl_done((union ctl_io *)io); 11325 } 11326 } 11327 } 11328 ctl_check_blocked(lun); 11329 } 11330 mtx_unlock(&lun->lun_lock); 11331} 11332 11333static int 11334ctl_scsiio_precheck(struct ctl_softc *softc, struct ctl_scsiio *ctsio) 11335{ 11336 struct ctl_lun *lun; 11337 const struct ctl_cmd_entry *entry; 11338 uint32_t initidx, targ_lun; 11339 int retval = 0; 11340 11341 lun = NULL; 11342 targ_lun = ctsio->io_hdr.nexus.targ_mapped_lun; 11343 if (targ_lun < ctl_max_luns) 11344 lun = softc->ctl_luns[targ_lun]; 11345 if (lun) { 11346 /* 11347 * If the LUN is invalid, pretend that it doesn't exist. 11348 * It will go away as soon as all pending I/O has been 11349 * completed. 11350 */ 11351 mtx_lock(&lun->lun_lock); 11352 if (lun->flags & CTL_LUN_DISABLED) { 11353 mtx_unlock(&lun->lun_lock); 11354 lun = NULL; 11355 } 11356 } 11357 CTL_LUN(ctsio) = lun; 11358 if (lun) { 11359 CTL_BACKEND_LUN(ctsio) = lun->be_lun; 11360 11361 /* 11362 * Every I/O goes into the OOA queue for a particular LUN, 11363 * and stays there until completion. 11364 */ 11365#ifdef CTL_TIME_IO 11366 if (TAILQ_EMPTY(&lun->ooa_queue)) 11367 lun->idle_time += getsbinuptime() - lun->last_busy; 11368#endif 11369 TAILQ_INSERT_TAIL(&lun->ooa_queue, &ctsio->io_hdr, ooa_links); 11370 } 11371 11372 /* Get command entry and return error if it is unsuppotyed. */ 11373 entry = ctl_validate_command(ctsio); 11374 if (entry == NULL) { 11375 if (lun) 11376 mtx_unlock(&lun->lun_lock); 11377 return (retval); 11378 } 11379 11380 ctsio->io_hdr.flags &= ~CTL_FLAG_DATA_MASK; 11381 ctsio->io_hdr.flags |= entry->flags & CTL_FLAG_DATA_MASK; 11382 11383 /* 11384 * Check to see whether we can send this command to LUNs that don't 11385 * exist. This should pretty much only be the case for inquiry 11386 * and request sense. Further checks, below, really require having 11387 * a LUN, so we can't really check the command anymore. Just put 11388 * it on the rtr queue. 11389 */ 11390 if (lun == NULL) { 11391 if (entry->flags & CTL_CMD_FLAG_OK_ON_NO_LUN) { 11392 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11393 ctl_enqueue_rtr((union ctl_io *)ctsio); 11394 return (retval); 11395 } 11396 11397 ctl_set_unsupported_lun(ctsio); 11398 ctl_done((union ctl_io *)ctsio); 11399 CTL_DEBUG_PRINT(("ctl_scsiio_precheck: bailing out due to invalid LUN\n")); 11400 return (retval); 11401 } else { 11402 /* 11403 * Make sure we support this particular command on this LUN. 11404 * e.g., we don't support writes to the control LUN. 11405 */ 11406 if (!ctl_cmd_applicable(lun->be_lun->lun_type, entry)) { 11407 mtx_unlock(&lun->lun_lock); 11408 ctl_set_invalid_opcode(ctsio); 11409 ctl_done((union ctl_io *)ctsio); 11410 return (retval); 11411 } 11412 } 11413 11414 initidx = ctl_get_initindex(&ctsio->io_hdr.nexus); 11415 11416 /* 11417 * If we've got a request sense, it'll clear the contingent 11418 * allegiance condition. Otherwise, if we have a CA condition for 11419 * this initiator, clear it, because it sent down a command other 11420 * than request sense. 11421 */ 11422 if (ctsio->cdb[0] != REQUEST_SENSE) { 11423 struct scsi_sense_data *ps; 11424 11425 ps = lun->pending_sense[initidx / CTL_MAX_INIT_PER_PORT]; 11426 if (ps != NULL) 11427 ps[initidx % CTL_MAX_INIT_PER_PORT].error_code = 0; 11428 } 11429 11430 /* 11431 * If the command has this flag set, it handles its own unit 11432 * attention reporting, we shouldn't do anything. Otherwise we 11433 * check for any pending unit attentions, and send them back to the 11434 * initiator. We only do this when a command initially comes in, 11435 * not when we pull it off the blocked queue. 11436 * 11437 * According to SAM-3, section 5.3.2, the order that things get 11438 * presented back to the host is basically unit attentions caused 11439 * by some sort of reset event, busy status, reservation conflicts 11440 * or task set full, and finally any other status. 11441 * 11442 * One issue here is that some of the unit attentions we report 11443 * don't fall into the "reset" category (e.g. "reported luns data 11444 * has changed"). So reporting it here, before the reservation 11445 * check, may be technically wrong. I guess the only thing to do 11446 * would be to check for and report the reset events here, and then 11447 * check for the other unit attention types after we check for a 11448 * reservation conflict. 11449 * 11450 * XXX KDM need to fix this 11451 */ 11452 if ((entry->flags & CTL_CMD_FLAG_NO_SENSE) == 0) { 11453 ctl_ua_type ua_type; 11454 u_int sense_len = 0; 11455 11456 ua_type = ctl_build_ua(lun, initidx, &ctsio->sense_data, 11457 &sense_len, SSD_TYPE_NONE); 11458 if (ua_type != CTL_UA_NONE) { 11459 mtx_unlock(&lun->lun_lock); 11460 ctsio->scsi_status = SCSI_STATUS_CHECK_COND; 11461 ctsio->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 11462 ctsio->sense_len = sense_len; 11463 ctl_done((union ctl_io *)ctsio); 11464 return (retval); 11465 } 11466 } 11467 11468 11469 if (ctl_scsiio_lun_check(lun, entry, ctsio) != 0) { 11470 mtx_unlock(&lun->lun_lock); 11471 ctl_done((union ctl_io *)ctsio); 11472 return (retval); 11473 } 11474 11475 /* 11476 * XXX CHD this is where we want to send IO to other side if 11477 * this LUN is secondary on this SC. We will need to make a copy 11478 * of the IO and flag the IO on this side as SENT_2OTHER and the flag 11479 * the copy we send as FROM_OTHER. 11480 * We also need to stuff the address of the original IO so we can 11481 * find it easily. Something similar will need be done on the other 11482 * side so when we are done we can find the copy. 11483 */ 11484 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 11485 (lun->flags & CTL_LUN_PEER_SC_PRIMARY) != 0 && 11486 (entry->flags & CTL_CMD_FLAG_RUN_HERE) == 0) { 11487 union ctl_ha_msg msg_info; 11488 int isc_retval; 11489 11490 ctsio->io_hdr.flags |= CTL_FLAG_SENT_2OTHER_SC; 11491 ctsio->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 11492 mtx_unlock(&lun->lun_lock); 11493 11494 msg_info.hdr.msg_type = CTL_MSG_SERIALIZE; 11495 msg_info.hdr.original_sc = (union ctl_io *)ctsio; 11496 msg_info.hdr.serializing_sc = NULL; 11497 msg_info.hdr.nexus = ctsio->io_hdr.nexus; 11498 msg_info.scsi.tag_num = ctsio->tag_num; 11499 msg_info.scsi.tag_type = ctsio->tag_type; 11500 msg_info.scsi.cdb_len = ctsio->cdb_len; 11501 memcpy(msg_info.scsi.cdb, ctsio->cdb, CTL_MAX_CDBLEN); 11502 11503 if ((isc_retval = ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11504 sizeof(msg_info.scsi) - sizeof(msg_info.scsi.sense_data), 11505 M_WAITOK)) > CTL_HA_STATUS_SUCCESS) { 11506 ctl_set_busy(ctsio); 11507 ctl_done((union ctl_io *)ctsio); 11508 return (retval); 11509 } 11510 return (retval); 11511 } 11512 11513 switch (ctl_check_ooa(lun, (union ctl_io *)ctsio, 11514 (union ctl_io *)TAILQ_PREV(&ctsio->io_hdr, 11515 ctl_ooaq, ooa_links))) { 11516 case CTL_ACTION_BLOCK: 11517 ctsio->io_hdr.flags |= CTL_FLAG_BLOCKED; 11518 TAILQ_INSERT_TAIL(&lun->blocked_queue, &ctsio->io_hdr, 11519 blocked_links); 11520 mtx_unlock(&lun->lun_lock); 11521 return (retval); 11522 case CTL_ACTION_PASS: 11523 case CTL_ACTION_SKIP: 11524 ctsio->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 11525 mtx_unlock(&lun->lun_lock); 11526 ctl_enqueue_rtr((union ctl_io *)ctsio); 11527 break; 11528 case CTL_ACTION_OVERLAP: 11529 mtx_unlock(&lun->lun_lock); 11530 ctl_set_overlapped_cmd(ctsio); 11531 ctl_done((union ctl_io *)ctsio); 11532 break; 11533 case CTL_ACTION_OVERLAP_TAG: 11534 mtx_unlock(&lun->lun_lock); 11535 ctl_set_overlapped_tag(ctsio, ctsio->tag_num & 0xff); 11536 ctl_done((union ctl_io *)ctsio); 11537 break; 11538 case CTL_ACTION_ERROR: 11539 default: 11540 mtx_unlock(&lun->lun_lock); 11541 ctl_set_internal_failure(ctsio, 11542 /*sks_valid*/ 0, 11543 /*retry_count*/ 0); 11544 ctl_done((union ctl_io *)ctsio); 11545 break; 11546 } 11547 return (retval); 11548} 11549 11550const struct ctl_cmd_entry * 11551ctl_get_cmd_entry(struct ctl_scsiio *ctsio, int *sa) 11552{ 11553 const struct ctl_cmd_entry *entry; 11554 int service_action; 11555 11556 entry = &ctl_cmd_table[ctsio->cdb[0]]; 11557 if (sa) 11558 *sa = ((entry->flags & CTL_CMD_FLAG_SA5) != 0); 11559 if (entry->flags & CTL_CMD_FLAG_SA5) { 11560 service_action = ctsio->cdb[1] & SERVICE_ACTION_MASK; 11561 entry = &((const struct ctl_cmd_entry *) 11562 entry->execute)[service_action]; 11563 } 11564 return (entry); 11565} 11566 11567const struct ctl_cmd_entry * 11568ctl_validate_command(struct ctl_scsiio *ctsio) 11569{ 11570 const struct ctl_cmd_entry *entry; 11571 int i, sa; 11572 uint8_t diff; 11573 11574 entry = ctl_get_cmd_entry(ctsio, &sa); 11575 if (entry->execute == NULL) { 11576 if (sa) 11577 ctl_set_invalid_field(ctsio, 11578 /*sks_valid*/ 1, 11579 /*command*/ 1, 11580 /*field*/ 1, 11581 /*bit_valid*/ 1, 11582 /*bit*/ 4); 11583 else 11584 ctl_set_invalid_opcode(ctsio); 11585 ctl_done((union ctl_io *)ctsio); 11586 return (NULL); 11587 } 11588 KASSERT(entry->length > 0, 11589 ("Not defined length for command 0x%02x/0x%02x", 11590 ctsio->cdb[0], ctsio->cdb[1])); 11591 for (i = 1; i < entry->length; i++) { 11592 diff = ctsio->cdb[i] & ~entry->usage[i - 1]; 11593 if (diff == 0) 11594 continue; 11595 ctl_set_invalid_field(ctsio, 11596 /*sks_valid*/ 1, 11597 /*command*/ 1, 11598 /*field*/ i, 11599 /*bit_valid*/ 1, 11600 /*bit*/ fls(diff) - 1); 11601 ctl_done((union ctl_io *)ctsio); 11602 return (NULL); 11603 } 11604 return (entry); 11605} 11606 11607static int 11608ctl_cmd_applicable(uint8_t lun_type, const struct ctl_cmd_entry *entry) 11609{ 11610 11611 switch (lun_type) { 11612 case T_DIRECT: 11613 if ((entry->flags & CTL_CMD_FLAG_OK_ON_DIRECT) == 0) 11614 return (0); 11615 break; 11616 case T_PROCESSOR: 11617 if ((entry->flags & CTL_CMD_FLAG_OK_ON_PROC) == 0) 11618 return (0); 11619 break; 11620 case T_CDROM: 11621 if ((entry->flags & CTL_CMD_FLAG_OK_ON_CDROM) == 0) 11622 return (0); 11623 break; 11624 default: 11625 return (0); 11626 } 11627 return (1); 11628} 11629 11630static int 11631ctl_scsiio(struct ctl_scsiio *ctsio) 11632{ 11633 int retval; 11634 const struct ctl_cmd_entry *entry; 11635 11636 retval = CTL_RETVAL_COMPLETE; 11637 11638 CTL_DEBUG_PRINT(("ctl_scsiio cdb[0]=%02X\n", ctsio->cdb[0])); 11639 11640 entry = ctl_get_cmd_entry(ctsio, NULL); 11641 11642 /* 11643 * If this I/O has been aborted, just send it straight to 11644 * ctl_done() without executing it. 11645 */ 11646 if (ctsio->io_hdr.flags & CTL_FLAG_ABORT) { 11647 ctl_done((union ctl_io *)ctsio); 11648 goto bailout; 11649 } 11650 11651 /* 11652 * All the checks should have been handled by ctl_scsiio_precheck(). 11653 * We should be clear now to just execute the I/O. 11654 */ 11655 retval = entry->execute(ctsio); 11656 11657bailout: 11658 return (retval); 11659} 11660 11661static int 11662ctl_target_reset(union ctl_io *io) 11663{ 11664 struct ctl_softc *softc = CTL_SOFTC(io); 11665 struct ctl_port *port = CTL_PORT(io); 11666 struct ctl_lun *lun; 11667 uint32_t initidx; 11668 ctl_ua_type ua_type; 11669 11670 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11671 union ctl_ha_msg msg_info; 11672 11673 msg_info.hdr.nexus = io->io_hdr.nexus; 11674 msg_info.task.task_action = io->taskio.task_action; 11675 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11676 msg_info.hdr.original_sc = NULL; 11677 msg_info.hdr.serializing_sc = NULL; 11678 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11679 sizeof(msg_info.task), M_WAITOK); 11680 } 11681 11682 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11683 if (io->taskio.task_action == CTL_TASK_TARGET_RESET) 11684 ua_type = CTL_UA_TARG_RESET; 11685 else 11686 ua_type = CTL_UA_BUS_RESET; 11687 mtx_lock(&softc->ctl_lock); 11688 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11689 if (port != NULL && 11690 ctl_lun_map_to_port(port, lun->lun) == UINT32_MAX) 11691 continue; 11692 ctl_do_lun_reset(lun, initidx, ua_type); 11693 } 11694 mtx_unlock(&softc->ctl_lock); 11695 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11696 return (0); 11697} 11698 11699/* 11700 * The LUN should always be set. The I/O is optional, and is used to 11701 * distinguish between I/Os sent by this initiator, and by other 11702 * initiators. We set unit attention for initiators other than this one. 11703 * SAM-3 is vague on this point. It does say that a unit attention should 11704 * be established for other initiators when a LUN is reset (see section 11705 * 5.7.3), but it doesn't specifically say that the unit attention should 11706 * be established for this particular initiator when a LUN is reset. Here 11707 * is the relevant text, from SAM-3 rev 8: 11708 * 11709 * 5.7.2 When a SCSI initiator port aborts its own tasks 11710 * 11711 * When a SCSI initiator port causes its own task(s) to be aborted, no 11712 * notification that the task(s) have been aborted shall be returned to 11713 * the SCSI initiator port other than the completion response for the 11714 * command or task management function action that caused the task(s) to 11715 * be aborted and notification(s) associated with related effects of the 11716 * action (e.g., a reset unit attention condition). 11717 * 11718 * XXX KDM for now, we're setting unit attention for all initiators. 11719 */ 11720static void 11721ctl_do_lun_reset(struct ctl_lun *lun, uint32_t initidx, ctl_ua_type ua_type) 11722{ 11723 union ctl_io *xio; 11724 int i; 11725 11726 mtx_lock(&lun->lun_lock); 11727 /* Abort tasks. */ 11728 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11729 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11730 xio->io_hdr.flags |= CTL_FLAG_ABORT | CTL_FLAG_ABORT_STATUS; 11731 } 11732 /* Clear CA. */ 11733 for (i = 0; i < ctl_max_ports; i++) { 11734 free(lun->pending_sense[i], M_CTL); 11735 lun->pending_sense[i] = NULL; 11736 } 11737 /* Clear reservation. */ 11738 lun->flags &= ~CTL_LUN_RESERVED; 11739 /* Clear prevent media removal. */ 11740 if (lun->prevent) { 11741 for (i = 0; i < CTL_MAX_INITIATORS; i++) 11742 ctl_clear_mask(lun->prevent, i); 11743 lun->prevent_count = 0; 11744 } 11745 /* Clear TPC status */ 11746 ctl_tpc_lun_clear(lun, -1); 11747 /* Establish UA. */ 11748#if 0 11749 ctl_est_ua_all(lun, initidx, ua_type); 11750#else 11751 ctl_est_ua_all(lun, -1, ua_type); 11752#endif 11753 mtx_unlock(&lun->lun_lock); 11754} 11755 11756static int 11757ctl_lun_reset(union ctl_io *io) 11758{ 11759 struct ctl_softc *softc = CTL_SOFTC(io); 11760 struct ctl_lun *lun; 11761 uint32_t targ_lun, initidx; 11762 11763 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11764 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11765 mtx_lock(&softc->ctl_lock); 11766 if (targ_lun >= ctl_max_luns || 11767 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11768 mtx_unlock(&softc->ctl_lock); 11769 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11770 return (1); 11771 } 11772 ctl_do_lun_reset(lun, initidx, CTL_UA_LUN_RESET); 11773 mtx_unlock(&softc->ctl_lock); 11774 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11775 11776 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0) { 11777 union ctl_ha_msg msg_info; 11778 11779 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11780 msg_info.hdr.nexus = io->io_hdr.nexus; 11781 msg_info.task.task_action = CTL_TASK_LUN_RESET; 11782 msg_info.hdr.original_sc = NULL; 11783 msg_info.hdr.serializing_sc = NULL; 11784 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11785 sizeof(msg_info.task), M_WAITOK); 11786 } 11787 return (0); 11788} 11789 11790static void 11791ctl_abort_tasks_lun(struct ctl_lun *lun, uint32_t targ_port, uint32_t init_id, 11792 int other_sc) 11793{ 11794 union ctl_io *xio; 11795 11796 mtx_assert(&lun->lun_lock, MA_OWNED); 11797 11798 /* 11799 * Run through the OOA queue and attempt to find the given I/O. 11800 * The target port, initiator ID, tag type and tag number have to 11801 * match the values that we got from the initiator. If we have an 11802 * untagged command to abort, simply abort the first untagged command 11803 * we come to. We only allow one untagged command at a time of course. 11804 */ 11805 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11806 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11807 11808 if ((targ_port == UINT32_MAX || 11809 targ_port == xio->io_hdr.nexus.targ_port) && 11810 (init_id == UINT32_MAX || 11811 init_id == xio->io_hdr.nexus.initid)) { 11812 if (targ_port != xio->io_hdr.nexus.targ_port || 11813 init_id != xio->io_hdr.nexus.initid) 11814 xio->io_hdr.flags |= CTL_FLAG_ABORT_STATUS; 11815 xio->io_hdr.flags |= CTL_FLAG_ABORT; 11816 if (!other_sc && !(lun->flags & CTL_LUN_PRIMARY_SC)) { 11817 union ctl_ha_msg msg_info; 11818 11819 msg_info.hdr.nexus = xio->io_hdr.nexus; 11820 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 11821 msg_info.task.tag_num = xio->scsiio.tag_num; 11822 msg_info.task.tag_type = xio->scsiio.tag_type; 11823 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11824 msg_info.hdr.original_sc = NULL; 11825 msg_info.hdr.serializing_sc = NULL; 11826 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11827 sizeof(msg_info.task), M_NOWAIT); 11828 } 11829 } 11830 } 11831} 11832 11833static int 11834ctl_abort_task_set(union ctl_io *io) 11835{ 11836 struct ctl_softc *softc = CTL_SOFTC(io); 11837 struct ctl_lun *lun; 11838 uint32_t targ_lun; 11839 11840 /* 11841 * Look up the LUN. 11842 */ 11843 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11844 mtx_lock(&softc->ctl_lock); 11845 if (targ_lun >= ctl_max_luns || 11846 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11847 mtx_unlock(&softc->ctl_lock); 11848 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11849 return (1); 11850 } 11851 11852 mtx_lock(&lun->lun_lock); 11853 mtx_unlock(&softc->ctl_lock); 11854 if (io->taskio.task_action == CTL_TASK_ABORT_TASK_SET) { 11855 ctl_abort_tasks_lun(lun, io->io_hdr.nexus.targ_port, 11856 io->io_hdr.nexus.initid, 11857 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11858 } else { /* CTL_TASK_CLEAR_TASK_SET */ 11859 ctl_abort_tasks_lun(lun, UINT32_MAX, UINT32_MAX, 11860 (io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) != 0); 11861 } 11862 mtx_unlock(&lun->lun_lock); 11863 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11864 return (0); 11865} 11866 11867static void 11868ctl_i_t_nexus_loss(struct ctl_softc *softc, uint32_t initidx, 11869 ctl_ua_type ua_type) 11870{ 11871 struct ctl_lun *lun; 11872 struct scsi_sense_data *ps; 11873 uint32_t p, i; 11874 11875 p = initidx / CTL_MAX_INIT_PER_PORT; 11876 i = initidx % CTL_MAX_INIT_PER_PORT; 11877 mtx_lock(&softc->ctl_lock); 11878 STAILQ_FOREACH(lun, &softc->lun_list, links) { 11879 mtx_lock(&lun->lun_lock); 11880 /* Abort tasks. */ 11881 ctl_abort_tasks_lun(lun, p, i, 1); 11882 /* Clear CA. */ 11883 ps = lun->pending_sense[p]; 11884 if (ps != NULL) 11885 ps[i].error_code = 0; 11886 /* Clear reservation. */ 11887 if ((lun->flags & CTL_LUN_RESERVED) && (lun->res_idx == initidx)) 11888 lun->flags &= ~CTL_LUN_RESERVED; 11889 /* Clear prevent media removal. */ 11890 if (lun->prevent && ctl_is_set(lun->prevent, initidx)) { 11891 ctl_clear_mask(lun->prevent, initidx); 11892 lun->prevent_count--; 11893 } 11894 /* Clear TPC status */ 11895 ctl_tpc_lun_clear(lun, initidx); 11896 /* Establish UA. */ 11897 ctl_est_ua(lun, initidx, ua_type); 11898 mtx_unlock(&lun->lun_lock); 11899 } 11900 mtx_unlock(&softc->ctl_lock); 11901} 11902 11903static int 11904ctl_i_t_nexus_reset(union ctl_io *io) 11905{ 11906 struct ctl_softc *softc = CTL_SOFTC(io); 11907 uint32_t initidx; 11908 11909 if (!(io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC)) { 11910 union ctl_ha_msg msg_info; 11911 11912 msg_info.hdr.nexus = io->io_hdr.nexus; 11913 msg_info.task.task_action = CTL_TASK_I_T_NEXUS_RESET; 11914 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 11915 msg_info.hdr.original_sc = NULL; 11916 msg_info.hdr.serializing_sc = NULL; 11917 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 11918 sizeof(msg_info.task), M_WAITOK); 11919 } 11920 11921 initidx = ctl_get_initindex(&io->io_hdr.nexus); 11922 ctl_i_t_nexus_loss(softc, initidx, CTL_UA_I_T_NEXUS_LOSS); 11923 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 11924 return (0); 11925} 11926 11927static int 11928ctl_abort_task(union ctl_io *io) 11929{ 11930 struct ctl_softc *softc = CTL_SOFTC(io); 11931 union ctl_io *xio; 11932 struct ctl_lun *lun; 11933#if 0 11934 struct sbuf sb; 11935 char printbuf[128]; 11936#endif 11937 int found; 11938 uint32_t targ_lun; 11939 11940 found = 0; 11941 11942 /* 11943 * Look up the LUN. 11944 */ 11945 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 11946 mtx_lock(&softc->ctl_lock); 11947 if (targ_lun >= ctl_max_luns || 11948 (lun = softc->ctl_luns[targ_lun]) == NULL) { 11949 mtx_unlock(&softc->ctl_lock); 11950 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 11951 return (1); 11952 } 11953 11954#if 0 11955 printf("ctl_abort_task: called for lun %lld, tag %d type %d\n", 11956 lun->lun, io->taskio.tag_num, io->taskio.tag_type); 11957#endif 11958 11959 mtx_lock(&lun->lun_lock); 11960 mtx_unlock(&softc->ctl_lock); 11961 /* 11962 * Run through the OOA queue and attempt to find the given I/O. 11963 * The target port, initiator ID, tag type and tag number have to 11964 * match the values that we got from the initiator. If we have an 11965 * untagged command to abort, simply abort the first untagged command 11966 * we come to. We only allow one untagged command at a time of course. 11967 */ 11968 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 11969 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 11970#if 0 11971 sbuf_new(&sb, printbuf, sizeof(printbuf), SBUF_FIXEDLEN); 11972 11973 sbuf_printf(&sb, "LUN %lld tag %d type %d%s%s%s%s: ", 11974 lun->lun, xio->scsiio.tag_num, 11975 xio->scsiio.tag_type, 11976 (xio->io_hdr.blocked_links.tqe_prev 11977 == NULL) ? "" : " BLOCKED", 11978 (xio->io_hdr.flags & 11979 CTL_FLAG_DMA_INPROG) ? " DMA" : "", 11980 (xio->io_hdr.flags & 11981 CTL_FLAG_ABORT) ? " ABORT" : "", 11982 (xio->io_hdr.flags & 11983 CTL_FLAG_IS_WAS_ON_RTR ? " RTR" : "")); 11984 ctl_scsi_command_string(&xio->scsiio, NULL, &sb); 11985 sbuf_finish(&sb); 11986 printf("%s\n", sbuf_data(&sb)); 11987#endif 11988 11989 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 11990 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 11991 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 11992 continue; 11993 11994 /* 11995 * If the abort says that the task is untagged, the 11996 * task in the queue must be untagged. Otherwise, 11997 * we just check to see whether the tag numbers 11998 * match. This is because the QLogic firmware 11999 * doesn't pass back the tag type in an abort 12000 * request. 12001 */ 12002#if 0 12003 if (((xio->scsiio.tag_type == CTL_TAG_UNTAGGED) 12004 && (io->taskio.tag_type == CTL_TAG_UNTAGGED)) 12005 || (xio->scsiio.tag_num == io->taskio.tag_num)) 12006#endif 12007 /* 12008 * XXX KDM we've got problems with FC, because it 12009 * doesn't send down a tag type with aborts. So we 12010 * can only really go by the tag number... 12011 * This may cause problems with parallel SCSI. 12012 * Need to figure that out!! 12013 */ 12014 if (xio->scsiio.tag_num == io->taskio.tag_num) { 12015 xio->io_hdr.flags |= CTL_FLAG_ABORT; 12016 found = 1; 12017 if ((io->io_hdr.flags & CTL_FLAG_FROM_OTHER_SC) == 0 && 12018 !(lun->flags & CTL_LUN_PRIMARY_SC)) { 12019 union ctl_ha_msg msg_info; 12020 12021 msg_info.hdr.nexus = io->io_hdr.nexus; 12022 msg_info.task.task_action = CTL_TASK_ABORT_TASK; 12023 msg_info.task.tag_num = io->taskio.tag_num; 12024 msg_info.task.tag_type = io->taskio.tag_type; 12025 msg_info.hdr.msg_type = CTL_MSG_MANAGE_TASKS; 12026 msg_info.hdr.original_sc = NULL; 12027 msg_info.hdr.serializing_sc = NULL; 12028#if 0 12029 printf("Sent Abort to other side\n"); 12030#endif 12031 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg_info, 12032 sizeof(msg_info.task), M_NOWAIT); 12033 } 12034#if 0 12035 printf("ctl_abort_task: found I/O to abort\n"); 12036#endif 12037 } 12038 } 12039 mtx_unlock(&lun->lun_lock); 12040 12041 if (found == 0) { 12042 /* 12043 * This isn't really an error. It's entirely possible for 12044 * the abort and command completion to cross on the wire. 12045 * This is more of an informative/diagnostic error. 12046 */ 12047#if 0 12048 printf("ctl_abort_task: ABORT sent for nonexistent I/O: " 12049 "%u:%u:%u tag %d type %d\n", 12050 io->io_hdr.nexus.initid, 12051 io->io_hdr.nexus.targ_port, 12052 io->io_hdr.nexus.targ_lun, io->taskio.tag_num, 12053 io->taskio.tag_type); 12054#endif 12055 } 12056 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12057 return (0); 12058} 12059 12060static int 12061ctl_query_task(union ctl_io *io, int task_set) 12062{ 12063 struct ctl_softc *softc = CTL_SOFTC(io); 12064 union ctl_io *xio; 12065 struct ctl_lun *lun; 12066 int found = 0; 12067 uint32_t targ_lun; 12068 12069 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12070 mtx_lock(&softc->ctl_lock); 12071 if (targ_lun >= ctl_max_luns || 12072 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12073 mtx_unlock(&softc->ctl_lock); 12074 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12075 return (1); 12076 } 12077 mtx_lock(&lun->lun_lock); 12078 mtx_unlock(&softc->ctl_lock); 12079 for (xio = (union ctl_io *)TAILQ_FIRST(&lun->ooa_queue); xio != NULL; 12080 xio = (union ctl_io *)TAILQ_NEXT(&xio->io_hdr, ooa_links)) { 12081 12082 if ((xio->io_hdr.nexus.targ_port != io->io_hdr.nexus.targ_port) 12083 || (xio->io_hdr.nexus.initid != io->io_hdr.nexus.initid) 12084 || (xio->io_hdr.flags & CTL_FLAG_ABORT)) 12085 continue; 12086 12087 if (task_set || xio->scsiio.tag_num == io->taskio.tag_num) { 12088 found = 1; 12089 break; 12090 } 12091 } 12092 mtx_unlock(&lun->lun_lock); 12093 if (found) 12094 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12095 else 12096 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12097 return (0); 12098} 12099 12100static int 12101ctl_query_async_event(union ctl_io *io) 12102{ 12103 struct ctl_softc *softc = CTL_SOFTC(io); 12104 struct ctl_lun *lun; 12105 ctl_ua_type ua; 12106 uint32_t targ_lun, initidx; 12107 12108 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12109 mtx_lock(&softc->ctl_lock); 12110 if (targ_lun >= ctl_max_luns || 12111 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12112 mtx_unlock(&softc->ctl_lock); 12113 io->taskio.task_status = CTL_TASK_LUN_DOES_NOT_EXIST; 12114 return (1); 12115 } 12116 mtx_lock(&lun->lun_lock); 12117 mtx_unlock(&softc->ctl_lock); 12118 initidx = ctl_get_initindex(&io->io_hdr.nexus); 12119 ua = ctl_build_qae(lun, initidx, io->taskio.task_resp); 12120 mtx_unlock(&lun->lun_lock); 12121 if (ua != CTL_UA_NONE) 12122 io->taskio.task_status = CTL_TASK_FUNCTION_SUCCEEDED; 12123 else 12124 io->taskio.task_status = CTL_TASK_FUNCTION_COMPLETE; 12125 return (0); 12126} 12127 12128static void 12129ctl_run_task(union ctl_io *io) 12130{ 12131 int retval = 1; 12132 12133 CTL_DEBUG_PRINT(("ctl_run_task\n")); 12134 KASSERT(io->io_hdr.io_type == CTL_IO_TASK, 12135 ("ctl_run_task: Unextected io_type %d\n", io->io_hdr.io_type)); 12136 io->taskio.task_status = CTL_TASK_FUNCTION_NOT_SUPPORTED; 12137 bzero(io->taskio.task_resp, sizeof(io->taskio.task_resp)); 12138 switch (io->taskio.task_action) { 12139 case CTL_TASK_ABORT_TASK: 12140 retval = ctl_abort_task(io); 12141 break; 12142 case CTL_TASK_ABORT_TASK_SET: 12143 case CTL_TASK_CLEAR_TASK_SET: 12144 retval = ctl_abort_task_set(io); 12145 break; 12146 case CTL_TASK_CLEAR_ACA: 12147 break; 12148 case CTL_TASK_I_T_NEXUS_RESET: 12149 retval = ctl_i_t_nexus_reset(io); 12150 break; 12151 case CTL_TASK_LUN_RESET: 12152 retval = ctl_lun_reset(io); 12153 break; 12154 case CTL_TASK_TARGET_RESET: 12155 case CTL_TASK_BUS_RESET: 12156 retval = ctl_target_reset(io); 12157 break; 12158 case CTL_TASK_PORT_LOGIN: 12159 break; 12160 case CTL_TASK_PORT_LOGOUT: 12161 break; 12162 case CTL_TASK_QUERY_TASK: 12163 retval = ctl_query_task(io, 0); 12164 break; 12165 case CTL_TASK_QUERY_TASK_SET: 12166 retval = ctl_query_task(io, 1); 12167 break; 12168 case CTL_TASK_QUERY_ASYNC_EVENT: 12169 retval = ctl_query_async_event(io); 12170 break; 12171 default: 12172 printf("%s: got unknown task management event %d\n", 12173 __func__, io->taskio.task_action); 12174 break; 12175 } 12176 if (retval == 0) 12177 io->io_hdr.status = CTL_SUCCESS; 12178 else 12179 io->io_hdr.status = CTL_ERROR; 12180 ctl_done(io); 12181} 12182 12183/* 12184 * For HA operation. Handle commands that come in from the other 12185 * controller. 12186 */ 12187static void 12188ctl_handle_isc(union ctl_io *io) 12189{ 12190 struct ctl_softc *softc = CTL_SOFTC(io); 12191 struct ctl_lun *lun; 12192 const struct ctl_cmd_entry *entry; 12193 uint32_t targ_lun; 12194 12195 targ_lun = io->io_hdr.nexus.targ_mapped_lun; 12196 switch (io->io_hdr.msg_type) { 12197 case CTL_MSG_SERIALIZE: 12198 ctl_serialize_other_sc_cmd(&io->scsiio); 12199 break; 12200 case CTL_MSG_R2R: /* Only used in SER_ONLY mode. */ 12201 entry = ctl_get_cmd_entry(&io->scsiio, NULL); 12202 if (targ_lun >= ctl_max_luns || 12203 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12204 ctl_done(io); 12205 break; 12206 } 12207 mtx_lock(&lun->lun_lock); 12208 if (ctl_scsiio_lun_check(lun, entry, &io->scsiio) != 0) { 12209 mtx_unlock(&lun->lun_lock); 12210 ctl_done(io); 12211 break; 12212 } 12213 io->io_hdr.flags |= CTL_FLAG_IS_WAS_ON_RTR; 12214 mtx_unlock(&lun->lun_lock); 12215 ctl_enqueue_rtr(io); 12216 break; 12217 case CTL_MSG_FINISH_IO: 12218 if (softc->ha_mode == CTL_HA_MODE_XFER) { 12219 ctl_done(io); 12220 break; 12221 } 12222 if (targ_lun >= ctl_max_luns || 12223 (lun = softc->ctl_luns[targ_lun]) == NULL) { 12224 ctl_free_io(io); 12225 break; 12226 } 12227 mtx_lock(&lun->lun_lock); 12228 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 12229 ctl_check_blocked(lun); 12230 mtx_unlock(&lun->lun_lock); 12231 ctl_free_io(io); 12232 break; 12233 case CTL_MSG_PERS_ACTION: 12234 ctl_hndl_per_res_out_on_other_sc(io); 12235 ctl_free_io(io); 12236 break; 12237 case CTL_MSG_BAD_JUJU: 12238 ctl_done(io); 12239 break; 12240 case CTL_MSG_DATAMOVE: /* Only used in XFER mode */ 12241 ctl_datamove_remote(io); 12242 break; 12243 case CTL_MSG_DATAMOVE_DONE: /* Only used in XFER mode */ 12244 io->scsiio.be_move_done(io); 12245 break; 12246 case CTL_MSG_FAILOVER: 12247 ctl_failover_lun(io); 12248 ctl_free_io(io); 12249 break; 12250 default: 12251 printf("%s: Invalid message type %d\n", 12252 __func__, io->io_hdr.msg_type); 12253 ctl_free_io(io); 12254 break; 12255 } 12256 12257} 12258 12259 12260/* 12261 * Returns the match type in the case of a match, or CTL_LUN_PAT_NONE if 12262 * there is no match. 12263 */ 12264static ctl_lun_error_pattern 12265ctl_cmd_pattern_match(struct ctl_scsiio *ctsio, struct ctl_error_desc *desc) 12266{ 12267 const struct ctl_cmd_entry *entry; 12268 ctl_lun_error_pattern filtered_pattern, pattern; 12269 12270 pattern = desc->error_pattern; 12271 12272 /* 12273 * XXX KDM we need more data passed into this function to match a 12274 * custom pattern, and we actually need to implement custom pattern 12275 * matching. 12276 */ 12277 if (pattern & CTL_LUN_PAT_CMD) 12278 return (CTL_LUN_PAT_CMD); 12279 12280 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_ANY) 12281 return (CTL_LUN_PAT_ANY); 12282 12283 entry = ctl_get_cmd_entry(ctsio, NULL); 12284 12285 filtered_pattern = entry->pattern & pattern; 12286 12287 /* 12288 * If the user requested specific flags in the pattern (e.g. 12289 * CTL_LUN_PAT_RANGE), make sure the command supports all of those 12290 * flags. 12291 * 12292 * If the user did not specify any flags, it doesn't matter whether 12293 * or not the command supports the flags. 12294 */ 12295 if ((filtered_pattern & ~CTL_LUN_PAT_MASK) != 12296 (pattern & ~CTL_LUN_PAT_MASK)) 12297 return (CTL_LUN_PAT_NONE); 12298 12299 /* 12300 * If the user asked for a range check, see if the requested LBA 12301 * range overlaps with this command's LBA range. 12302 */ 12303 if (filtered_pattern & CTL_LUN_PAT_RANGE) { 12304 uint64_t lba1; 12305 uint64_t len1; 12306 ctl_action action; 12307 int retval; 12308 12309 retval = ctl_get_lba_len((union ctl_io *)ctsio, &lba1, &len1); 12310 if (retval != 0) 12311 return (CTL_LUN_PAT_NONE); 12312 12313 action = ctl_extent_check_lba(lba1, len1, desc->lba_range.lba, 12314 desc->lba_range.len, FALSE); 12315 /* 12316 * A "pass" means that the LBA ranges don't overlap, so 12317 * this doesn't match the user's range criteria. 12318 */ 12319 if (action == CTL_ACTION_PASS) 12320 return (CTL_LUN_PAT_NONE); 12321 } 12322 12323 return (filtered_pattern); 12324} 12325 12326static void 12327ctl_inject_error(struct ctl_lun *lun, union ctl_io *io) 12328{ 12329 struct ctl_error_desc *desc, *desc2; 12330 12331 mtx_assert(&lun->lun_lock, MA_OWNED); 12332 12333 STAILQ_FOREACH_SAFE(desc, &lun->error_list, links, desc2) { 12334 ctl_lun_error_pattern pattern; 12335 /* 12336 * Check to see whether this particular command matches 12337 * the pattern in the descriptor. 12338 */ 12339 pattern = ctl_cmd_pattern_match(&io->scsiio, desc); 12340 if ((pattern & CTL_LUN_PAT_MASK) == CTL_LUN_PAT_NONE) 12341 continue; 12342 12343 switch (desc->lun_error & CTL_LUN_INJ_TYPE) { 12344 case CTL_LUN_INJ_ABORTED: 12345 ctl_set_aborted(&io->scsiio); 12346 break; 12347 case CTL_LUN_INJ_MEDIUM_ERR: 12348 ctl_set_medium_error(&io->scsiio, 12349 (io->io_hdr.flags & CTL_FLAG_DATA_MASK) != 12350 CTL_FLAG_DATA_OUT); 12351 break; 12352 case CTL_LUN_INJ_UA: 12353 /* 29h/00h POWER ON, RESET, OR BUS DEVICE RESET 12354 * OCCURRED */ 12355 ctl_set_ua(&io->scsiio, 0x29, 0x00); 12356 break; 12357 case CTL_LUN_INJ_CUSTOM: 12358 /* 12359 * We're assuming the user knows what he is doing. 12360 * Just copy the sense information without doing 12361 * checks. 12362 */ 12363 bcopy(&desc->custom_sense, &io->scsiio.sense_data, 12364 MIN(sizeof(desc->custom_sense), 12365 sizeof(io->scsiio.sense_data))); 12366 io->scsiio.scsi_status = SCSI_STATUS_CHECK_COND; 12367 io->scsiio.sense_len = SSD_FULL_SIZE; 12368 io->io_hdr.status = CTL_SCSI_ERROR | CTL_AUTOSENSE; 12369 break; 12370 case CTL_LUN_INJ_NONE: 12371 default: 12372 /* 12373 * If this is an error injection type we don't know 12374 * about, clear the continuous flag (if it is set) 12375 * so it will get deleted below. 12376 */ 12377 desc->lun_error &= ~CTL_LUN_INJ_CONTINUOUS; 12378 break; 12379 } 12380 /* 12381 * By default, each error injection action is a one-shot 12382 */ 12383 if (desc->lun_error & CTL_LUN_INJ_CONTINUOUS) 12384 continue; 12385 12386 STAILQ_REMOVE(&lun->error_list, desc, ctl_error_desc, links); 12387 12388 free(desc, M_CTL); 12389 } 12390} 12391 12392#ifdef CTL_IO_DELAY 12393static void 12394ctl_datamove_timer_wakeup(void *arg) 12395{ 12396 union ctl_io *io; 12397 12398 io = (union ctl_io *)arg; 12399 12400 ctl_datamove(io); 12401} 12402#endif /* CTL_IO_DELAY */ 12403 12404void 12405ctl_datamove(union ctl_io *io) 12406{ 12407 void (*fe_datamove)(union ctl_io *io); 12408 12409 mtx_assert(&((struct ctl_softc *)CTL_SOFTC(io))->ctl_lock, MA_NOTOWNED); 12410 12411 CTL_DEBUG_PRINT(("ctl_datamove\n")); 12412 12413 /* No data transferred yet. Frontend must update this when done. */ 12414 io->scsiio.kern_data_resid = io->scsiio.kern_data_len; 12415 12416#ifdef CTL_TIME_IO 12417 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12418 char str[256]; 12419 char path_str[64]; 12420 struct sbuf sb; 12421 12422 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12423 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12424 12425 sbuf_cat(&sb, path_str); 12426 switch (io->io_hdr.io_type) { 12427 case CTL_IO_SCSI: 12428 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12429 sbuf_printf(&sb, "\n"); 12430 sbuf_cat(&sb, path_str); 12431 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12432 io->scsiio.tag_num, io->scsiio.tag_type); 12433 break; 12434 case CTL_IO_TASK: 12435 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12436 "Tag Type: %d\n", io->taskio.task_action, 12437 io->taskio.tag_num, io->taskio.tag_type); 12438 break; 12439 default: 12440 panic("%s: Invalid CTL I/O type %d\n", 12441 __func__, io->io_hdr.io_type); 12442 } 12443 sbuf_cat(&sb, path_str); 12444 sbuf_printf(&sb, "ctl_datamove: %jd seconds\n", 12445 (intmax_t)time_uptime - io->io_hdr.start_time); 12446 sbuf_finish(&sb); 12447 printf("%s", sbuf_data(&sb)); 12448 } 12449#endif /* CTL_TIME_IO */ 12450 12451#ifdef CTL_IO_DELAY 12452 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 12453 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 12454 } else { 12455 struct ctl_lun *lun; 12456 12457 lun = CTL_LUN(io); 12458 if ((lun != NULL) 12459 && (lun->delay_info.datamove_delay > 0)) { 12460 12461 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 12462 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 12463 callout_reset(&io->io_hdr.delay_callout, 12464 lun->delay_info.datamove_delay * hz, 12465 ctl_datamove_timer_wakeup, io); 12466 if (lun->delay_info.datamove_type == 12467 CTL_DELAY_TYPE_ONESHOT) 12468 lun->delay_info.datamove_delay = 0; 12469 return; 12470 } 12471 } 12472#endif 12473 12474 /* 12475 * This command has been aborted. Set the port status, so we fail 12476 * the data move. 12477 */ 12478 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12479 printf("ctl_datamove: tag 0x%04x on (%u:%u:%u) aborted\n", 12480 io->scsiio.tag_num, io->io_hdr.nexus.initid, 12481 io->io_hdr.nexus.targ_port, 12482 io->io_hdr.nexus.targ_lun); 12483 io->io_hdr.port_status = 31337; 12484 /* 12485 * Note that the backend, in this case, will get the 12486 * callback in its context. In other cases it may get 12487 * called in the frontend's interrupt thread context. 12488 */ 12489 io->scsiio.be_move_done(io); 12490 return; 12491 } 12492 12493 /* Don't confuse frontend with zero length data move. */ 12494 if (io->scsiio.kern_data_len == 0) { 12495 io->scsiio.be_move_done(io); 12496 return; 12497 } 12498 12499 fe_datamove = CTL_PORT(io)->fe_datamove; 12500 fe_datamove(io); 12501} 12502 12503static void 12504ctl_send_datamove_done(union ctl_io *io, int have_lock) 12505{ 12506 union ctl_ha_msg msg; 12507#ifdef CTL_TIME_IO 12508 struct bintime cur_bt; 12509#endif 12510 12511 memset(&msg, 0, sizeof(msg)); 12512 msg.hdr.msg_type = CTL_MSG_DATAMOVE_DONE; 12513 msg.hdr.original_sc = io; 12514 msg.hdr.serializing_sc = io->io_hdr.remote_io; 12515 msg.hdr.nexus = io->io_hdr.nexus; 12516 msg.hdr.status = io->io_hdr.status; 12517 msg.scsi.kern_data_resid = io->scsiio.kern_data_resid; 12518 msg.scsi.tag_num = io->scsiio.tag_num; 12519 msg.scsi.tag_type = io->scsiio.tag_type; 12520 msg.scsi.scsi_status = io->scsiio.scsi_status; 12521 memcpy(&msg.scsi.sense_data, &io->scsiio.sense_data, 12522 io->scsiio.sense_len); 12523 msg.scsi.sense_len = io->scsiio.sense_len; 12524 msg.scsi.port_status = io->io_hdr.port_status; 12525 io->io_hdr.flags &= ~CTL_FLAG_IO_ACTIVE; 12526 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12527 ctl_failover_io(io, /*have_lock*/ have_lock); 12528 return; 12529 } 12530 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 12531 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data) + 12532 msg.scsi.sense_len, M_WAITOK); 12533 12534#ifdef CTL_TIME_IO 12535 getbinuptime(&cur_bt); 12536 bintime_sub(&cur_bt, &io->io_hdr.dma_start_bt); 12537 bintime_add(&io->io_hdr.dma_bt, &cur_bt); 12538#endif 12539 io->io_hdr.num_dmas++; 12540} 12541 12542/* 12543 * The DMA to the remote side is done, now we need to tell the other side 12544 * we're done so it can continue with its data movement. 12545 */ 12546static void 12547ctl_datamove_remote_write_cb(struct ctl_ha_dt_req *rq) 12548{ 12549 union ctl_io *io; 12550 uint32_t i; 12551 12552 io = rq->context; 12553 12554 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12555 printf("%s: ISC DMA write failed with error %d", __func__, 12556 rq->ret); 12557 ctl_set_internal_failure(&io->scsiio, 12558 /*sks_valid*/ 1, 12559 /*retry_count*/ rq->ret); 12560 } 12561 12562 ctl_dt_req_free(rq); 12563 12564 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12565 free(CTL_LSGLT(io)[i].addr, M_CTL); 12566 free(CTL_RSGL(io), M_CTL); 12567 CTL_RSGL(io) = NULL; 12568 CTL_LSGL(io) = NULL; 12569 12570 /* 12571 * The data is in local and remote memory, so now we need to send 12572 * status (good or back) back to the other side. 12573 */ 12574 ctl_send_datamove_done(io, /*have_lock*/ 0); 12575} 12576 12577/* 12578 * We've moved the data from the host/controller into local memory. Now we 12579 * need to push it over to the remote controller's memory. 12580 */ 12581static int 12582ctl_datamove_remote_dm_write_cb(union ctl_io *io) 12583{ 12584 int retval; 12585 12586 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_WRITE, 12587 ctl_datamove_remote_write_cb); 12588 return (retval); 12589} 12590 12591static void 12592ctl_datamove_remote_write(union ctl_io *io) 12593{ 12594 int retval; 12595 void (*fe_datamove)(union ctl_io *io); 12596 12597 /* 12598 * - Get the data from the host/HBA into local memory. 12599 * - DMA memory from the local controller to the remote controller. 12600 * - Send status back to the remote controller. 12601 */ 12602 12603 retval = ctl_datamove_remote_sgl_setup(io); 12604 if (retval != 0) 12605 return; 12606 12607 /* Switch the pointer over so the FETD knows what to do */ 12608 io->scsiio.kern_data_ptr = (uint8_t *)CTL_LSGL(io); 12609 12610 /* 12611 * Use a custom move done callback, since we need to send completion 12612 * back to the other controller, not to the backend on this side. 12613 */ 12614 io->scsiio.be_move_done = ctl_datamove_remote_dm_write_cb; 12615 12616 fe_datamove = CTL_PORT(io)->fe_datamove; 12617 fe_datamove(io); 12618} 12619 12620static int 12621ctl_datamove_remote_dm_read_cb(union ctl_io *io) 12622{ 12623#if 0 12624 char str[256]; 12625 char path_str[64]; 12626 struct sbuf sb; 12627#endif 12628 uint32_t i; 12629 12630 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12631 free(CTL_LSGLT(io)[i].addr, M_CTL); 12632 free(CTL_RSGL(io), M_CTL); 12633 CTL_RSGL(io) = NULL; 12634 CTL_LSGL(io) = NULL; 12635 12636#if 0 12637 scsi_path_string(io, path_str, sizeof(path_str)); 12638 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12639 sbuf_cat(&sb, path_str); 12640 scsi_command_string(&io->scsiio, NULL, &sb); 12641 sbuf_printf(&sb, "\n"); 12642 sbuf_cat(&sb, path_str); 12643 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12644 io->scsiio.tag_num, io->scsiio.tag_type); 12645 sbuf_cat(&sb, path_str); 12646 sbuf_printf(&sb, "%s: flags %#x, status %#x\n", __func__, 12647 io->io_hdr.flags, io->io_hdr.status); 12648 sbuf_finish(&sb); 12649 printk("%s", sbuf_data(&sb)); 12650#endif 12651 12652 12653 /* 12654 * The read is done, now we need to send status (good or bad) back 12655 * to the other side. 12656 */ 12657 ctl_send_datamove_done(io, /*have_lock*/ 0); 12658 12659 return (0); 12660} 12661 12662static void 12663ctl_datamove_remote_read_cb(struct ctl_ha_dt_req *rq) 12664{ 12665 union ctl_io *io; 12666 void (*fe_datamove)(union ctl_io *io); 12667 12668 io = rq->context; 12669 12670 if (rq->ret != CTL_HA_STATUS_SUCCESS) { 12671 printf("%s: ISC DMA read failed with error %d\n", __func__, 12672 rq->ret); 12673 ctl_set_internal_failure(&io->scsiio, 12674 /*sks_valid*/ 1, 12675 /*retry_count*/ rq->ret); 12676 } 12677 12678 ctl_dt_req_free(rq); 12679 12680 /* Switch the pointer over so the FETD knows what to do */ 12681 io->scsiio.kern_data_ptr = (uint8_t *)CTL_LSGL(io); 12682 12683 /* 12684 * Use a custom move done callback, since we need to send completion 12685 * back to the other controller, not to the backend on this side. 12686 */ 12687 io->scsiio.be_move_done = ctl_datamove_remote_dm_read_cb; 12688 12689 /* XXX KDM add checks like the ones in ctl_datamove? */ 12690 12691 fe_datamove = CTL_PORT(io)->fe_datamove; 12692 fe_datamove(io); 12693} 12694 12695static int 12696ctl_datamove_remote_sgl_setup(union ctl_io *io) 12697{ 12698 struct ctl_sg_entry *local_sglist; 12699 uint32_t len_to_go; 12700 int retval; 12701 int i; 12702 12703 retval = 0; 12704 local_sglist = CTL_LSGL(io); 12705 len_to_go = io->scsiio.kern_data_len; 12706 12707 /* 12708 * The difficult thing here is that the size of the various 12709 * S/G segments may be different than the size from the 12710 * remote controller. That'll make it harder when DMAing 12711 * the data back to the other side. 12712 */ 12713 for (i = 0; len_to_go > 0; i++) { 12714 local_sglist[i].len = MIN(len_to_go, CTL_HA_DATAMOVE_SEGMENT); 12715 local_sglist[i].addr = 12716 malloc(local_sglist[i].len, M_CTL, M_WAITOK); 12717 12718 len_to_go -= local_sglist[i].len; 12719 } 12720 /* 12721 * Reset the number of S/G entries accordingly. The original 12722 * number of S/G entries is available in rem_sg_entries. 12723 */ 12724 io->scsiio.kern_sg_entries = i; 12725 12726#if 0 12727 printf("%s: kern_sg_entries = %d\n", __func__, 12728 io->scsiio.kern_sg_entries); 12729 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12730 printf("%s: sg[%d] = %p, %lu\n", __func__, i, 12731 local_sglist[i].addr, local_sglist[i].len); 12732#endif 12733 12734 return (retval); 12735} 12736 12737static int 12738ctl_datamove_remote_xfer(union ctl_io *io, unsigned command, 12739 ctl_ha_dt_cb callback) 12740{ 12741 struct ctl_ha_dt_req *rq; 12742 struct ctl_sg_entry *remote_sglist, *local_sglist; 12743 uint32_t local_used, remote_used, total_used; 12744 int i, j, isc_ret; 12745 12746 rq = ctl_dt_req_alloc(); 12747 12748 /* 12749 * If we failed to allocate the request, and if the DMA didn't fail 12750 * anyway, set busy status. This is just a resource allocation 12751 * failure. 12752 */ 12753 if ((rq == NULL) 12754 && ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12755 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS)) 12756 ctl_set_busy(&io->scsiio); 12757 12758 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE && 12759 (io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS) { 12760 12761 if (rq != NULL) 12762 ctl_dt_req_free(rq); 12763 12764 /* 12765 * The data move failed. We need to return status back 12766 * to the other controller. No point in trying to DMA 12767 * data to the remote controller. 12768 */ 12769 12770 ctl_send_datamove_done(io, /*have_lock*/ 0); 12771 12772 return (1); 12773 } 12774 12775 local_sglist = CTL_LSGL(io); 12776 remote_sglist = CTL_RSGL(io); 12777 local_used = 0; 12778 remote_used = 0; 12779 total_used = 0; 12780 12781 /* 12782 * Pull/push the data over the wire from/to the other controller. 12783 * This takes into account the possibility that the local and 12784 * remote sglists may not be identical in terms of the size of 12785 * the elements and the number of elements. 12786 * 12787 * One fundamental assumption here is that the length allocated for 12788 * both the local and remote sglists is identical. Otherwise, we've 12789 * essentially got a coding error of some sort. 12790 */ 12791 isc_ret = CTL_HA_STATUS_SUCCESS; 12792 for (i = 0, j = 0; total_used < io->scsiio.kern_data_len; ) { 12793 uint32_t cur_len; 12794 uint8_t *tmp_ptr; 12795 12796 rq->command = command; 12797 rq->context = io; 12798 12799 /* 12800 * Both pointers should be aligned. But it is possible 12801 * that the allocation length is not. They should both 12802 * also have enough slack left over at the end, though, 12803 * to round up to the next 8 byte boundary. 12804 */ 12805 cur_len = MIN(local_sglist[i].len - local_used, 12806 remote_sglist[j].len - remote_used); 12807 rq->size = cur_len; 12808 12809 tmp_ptr = (uint8_t *)local_sglist[i].addr; 12810 tmp_ptr += local_used; 12811 12812#if 0 12813 /* Use physical addresses when talking to ISC hardware */ 12814 if ((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0) { 12815 /* XXX KDM use busdma */ 12816 rq->local = vtophys(tmp_ptr); 12817 } else 12818 rq->local = tmp_ptr; 12819#else 12820 KASSERT((io->io_hdr.flags & CTL_FLAG_BUS_ADDR) == 0, 12821 ("HA does not support BUS_ADDR")); 12822 rq->local = tmp_ptr; 12823#endif 12824 12825 tmp_ptr = (uint8_t *)remote_sglist[j].addr; 12826 tmp_ptr += remote_used; 12827 rq->remote = tmp_ptr; 12828 12829 rq->callback = NULL; 12830 12831 local_used += cur_len; 12832 if (local_used >= local_sglist[i].len) { 12833 i++; 12834 local_used = 0; 12835 } 12836 12837 remote_used += cur_len; 12838 if (remote_used >= remote_sglist[j].len) { 12839 j++; 12840 remote_used = 0; 12841 } 12842 total_used += cur_len; 12843 12844 if (total_used >= io->scsiio.kern_data_len) 12845 rq->callback = callback; 12846 12847#if 0 12848 printf("%s: %s: local %p remote %p size %d\n", __func__, 12849 (command == CTL_HA_DT_CMD_WRITE) ? "WRITE" : "READ", 12850 rq->local, rq->remote, rq->size); 12851#endif 12852 12853 isc_ret = ctl_dt_single(rq); 12854 if (isc_ret > CTL_HA_STATUS_SUCCESS) 12855 break; 12856 } 12857 if (isc_ret != CTL_HA_STATUS_WAIT) { 12858 rq->ret = isc_ret; 12859 callback(rq); 12860 } 12861 12862 return (0); 12863} 12864 12865static void 12866ctl_datamove_remote_read(union ctl_io *io) 12867{ 12868 int retval; 12869 uint32_t i; 12870 12871 /* 12872 * This will send an error to the other controller in the case of a 12873 * failure. 12874 */ 12875 retval = ctl_datamove_remote_sgl_setup(io); 12876 if (retval != 0) 12877 return; 12878 12879 retval = ctl_datamove_remote_xfer(io, CTL_HA_DT_CMD_READ, 12880 ctl_datamove_remote_read_cb); 12881 if (retval != 0) { 12882 /* 12883 * Make sure we free memory if there was an error.. The 12884 * ctl_datamove_remote_xfer() function will send the 12885 * datamove done message, or call the callback with an 12886 * error if there is a problem. 12887 */ 12888 for (i = 0; i < io->scsiio.kern_sg_entries; i++) 12889 free(CTL_LSGLT(io)[i].addr, M_CTL); 12890 free(CTL_RSGL(io), M_CTL); 12891 CTL_RSGL(io) = NULL; 12892 CTL_LSGL(io) = NULL; 12893 } 12894} 12895 12896/* 12897 * Process a datamove request from the other controller. This is used for 12898 * XFER mode only, not SER_ONLY mode. For writes, we DMA into local memory 12899 * first. Once that is complete, the data gets DMAed into the remote 12900 * controller's memory. For reads, we DMA from the remote controller's 12901 * memory into our memory first, and then move it out to the FETD. 12902 */ 12903static void 12904ctl_datamove_remote(union ctl_io *io) 12905{ 12906 12907 mtx_assert(&((struct ctl_softc *)CTL_SOFTC(io))->ctl_lock, MA_NOTOWNED); 12908 12909 if (io->io_hdr.flags & CTL_FLAG_FAILOVER) { 12910 ctl_failover_io(io, /*have_lock*/ 0); 12911 return; 12912 } 12913 12914 /* 12915 * Note that we look for an aborted I/O here, but don't do some of 12916 * the other checks that ctl_datamove() normally does. 12917 * We don't need to run the datamove delay code, since that should 12918 * have been done if need be on the other controller. 12919 */ 12920 if (io->io_hdr.flags & CTL_FLAG_ABORT) { 12921 printf("%s: tag 0x%04x on (%u:%u:%u) aborted\n", __func__, 12922 io->scsiio.tag_num, io->io_hdr.nexus.initid, 12923 io->io_hdr.nexus.targ_port, 12924 io->io_hdr.nexus.targ_lun); 12925 io->io_hdr.port_status = 31338; 12926 ctl_send_datamove_done(io, /*have_lock*/ 0); 12927 return; 12928 } 12929 12930 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_OUT) 12931 ctl_datamove_remote_write(io); 12932 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == CTL_FLAG_DATA_IN) 12933 ctl_datamove_remote_read(io); 12934 else { 12935 io->io_hdr.port_status = 31339; 12936 ctl_send_datamove_done(io, /*have_lock*/ 0); 12937 } 12938} 12939 12940static void 12941ctl_process_done(union ctl_io *io) 12942{ 12943 struct ctl_softc *softc = CTL_SOFTC(io); 12944 struct ctl_port *port = CTL_PORT(io); 12945 struct ctl_lun *lun = CTL_LUN(io); 12946 void (*fe_done)(union ctl_io *io); 12947 union ctl_ha_msg msg; 12948 12949 CTL_DEBUG_PRINT(("ctl_process_done\n")); 12950 fe_done = port->fe_done; 12951 12952#ifdef CTL_TIME_IO 12953 if ((time_uptime - io->io_hdr.start_time) > ctl_time_io_secs) { 12954 char str[256]; 12955 char path_str[64]; 12956 struct sbuf sb; 12957 12958 ctl_scsi_path_string(io, path_str, sizeof(path_str)); 12959 sbuf_new(&sb, str, sizeof(str), SBUF_FIXEDLEN); 12960 12961 sbuf_cat(&sb, path_str); 12962 switch (io->io_hdr.io_type) { 12963 case CTL_IO_SCSI: 12964 ctl_scsi_command_string(&io->scsiio, NULL, &sb); 12965 sbuf_printf(&sb, "\n"); 12966 sbuf_cat(&sb, path_str); 12967 sbuf_printf(&sb, "Tag: 0x%04x, type %d\n", 12968 io->scsiio.tag_num, io->scsiio.tag_type); 12969 break; 12970 case CTL_IO_TASK: 12971 sbuf_printf(&sb, "Task I/O type: %d, Tag: 0x%04x, " 12972 "Tag Type: %d\n", io->taskio.task_action, 12973 io->taskio.tag_num, io->taskio.tag_type); 12974 break; 12975 default: 12976 panic("%s: Invalid CTL I/O type %d\n", 12977 __func__, io->io_hdr.io_type); 12978 } 12979 sbuf_cat(&sb, path_str); 12980 sbuf_printf(&sb, "ctl_process_done: %jd seconds\n", 12981 (intmax_t)time_uptime - io->io_hdr.start_time); 12982 sbuf_finish(&sb); 12983 printf("%s", sbuf_data(&sb)); 12984 } 12985#endif /* CTL_TIME_IO */ 12986 12987 switch (io->io_hdr.io_type) { 12988 case CTL_IO_SCSI: 12989 break; 12990 case CTL_IO_TASK: 12991 if (ctl_debug & CTL_DEBUG_INFO) 12992 ctl_io_error_print(io, NULL); 12993 fe_done(io); 12994 return; 12995 default: 12996 panic("%s: Invalid CTL I/O type %d\n", 12997 __func__, io->io_hdr.io_type); 12998 } 12999 13000 if (lun == NULL) { 13001 CTL_DEBUG_PRINT(("NULL LUN for lun %d\n", 13002 io->io_hdr.nexus.targ_mapped_lun)); 13003 goto bailout; 13004 } 13005 13006 mtx_lock(&lun->lun_lock); 13007 13008 /* 13009 * Check to see if we have any informational exception and status 13010 * of this command can be modified to report it in form of either 13011 * RECOVERED ERROR or NO SENSE, depending on MRIE mode page field. 13012 */ 13013 if (lun->ie_reported == 0 && lun->ie_asc != 0 && 13014 io->io_hdr.status == CTL_SUCCESS && 13015 (io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0) { 13016 uint8_t mrie = lun->MODE_IE.mrie; 13017 uint8_t per = ((lun->MODE_RWER.byte3 & SMS_RWER_PER) || 13018 (lun->MODE_VER.byte3 & SMS_VER_PER)); 13019 if (((mrie == SIEP_MRIE_REC_COND && per) || 13020 mrie == SIEP_MRIE_REC_UNCOND || 13021 mrie == SIEP_MRIE_NO_SENSE) && 13022 (ctl_get_cmd_entry(&io->scsiio, NULL)->flags & 13023 CTL_CMD_FLAG_NO_SENSE) == 0) { 13024 ctl_set_sense(&io->scsiio, 13025 /*current_error*/ 1, 13026 /*sense_key*/ (mrie == SIEP_MRIE_NO_SENSE) ? 13027 SSD_KEY_NO_SENSE : SSD_KEY_RECOVERED_ERROR, 13028 /*asc*/ lun->ie_asc, 13029 /*ascq*/ lun->ie_ascq, 13030 SSD_ELEM_NONE); 13031 lun->ie_reported = 1; 13032 } 13033 } else if (lun->ie_reported < 0) 13034 lun->ie_reported = 0; 13035 13036 /* 13037 * Check to see if we have any errors to inject here. We only 13038 * inject errors for commands that don't already have errors set. 13039 */ 13040 if (!STAILQ_EMPTY(&lun->error_list) && 13041 ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS) && 13042 ((io->io_hdr.flags & CTL_FLAG_STATUS_SENT) == 0)) 13043 ctl_inject_error(lun, io); 13044 13045 /* 13046 * XXX KDM how do we treat commands that aren't completed 13047 * successfully? 13048 * 13049 * XXX KDM should we also track I/O latency? 13050 */ 13051 if ((io->io_hdr.status & CTL_STATUS_MASK) == CTL_SUCCESS && 13052 io->io_hdr.io_type == CTL_IO_SCSI) { 13053 int type; 13054#ifdef CTL_TIME_IO 13055 struct bintime bt; 13056 13057 getbinuptime(&bt); 13058 bintime_sub(&bt, &io->io_hdr.start_bt); 13059#endif 13060 if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13061 CTL_FLAG_DATA_IN) 13062 type = CTL_STATS_READ; 13063 else if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) == 13064 CTL_FLAG_DATA_OUT) 13065 type = CTL_STATS_WRITE; 13066 else 13067 type = CTL_STATS_NO_IO; 13068 13069#ifdef CTL_LEGACY_STATS 13070 uint32_t targ_port = port->targ_port; 13071 lun->legacy_stats.ports[targ_port].bytes[type] += 13072 io->scsiio.kern_total_len; 13073 lun->legacy_stats.ports[targ_port].operations[type] ++; 13074 lun->legacy_stats.ports[targ_port].num_dmas[type] += 13075 io->io_hdr.num_dmas; 13076#ifdef CTL_TIME_IO 13077 bintime_add(&lun->legacy_stats.ports[targ_port].dma_time[type], 13078 &io->io_hdr.dma_bt); 13079 bintime_add(&lun->legacy_stats.ports[targ_port].time[type], 13080 &bt); 13081#endif 13082#endif /* CTL_LEGACY_STATS */ 13083 13084 lun->stats.bytes[type] += io->scsiio.kern_total_len; 13085 lun->stats.operations[type] ++; 13086 lun->stats.dmas[type] += io->io_hdr.num_dmas; 13087#ifdef CTL_TIME_IO 13088 bintime_add(&lun->stats.dma_time[type], &io->io_hdr.dma_bt); 13089 bintime_add(&lun->stats.time[type], &bt); 13090#endif 13091 13092 mtx_lock(&port->port_lock); 13093 port->stats.bytes[type] += io->scsiio.kern_total_len; 13094 port->stats.operations[type] ++; 13095 port->stats.dmas[type] += io->io_hdr.num_dmas; 13096#ifdef CTL_TIME_IO 13097 bintime_add(&port->stats.dma_time[type], &io->io_hdr.dma_bt); 13098 bintime_add(&port->stats.time[type], &bt); 13099#endif 13100 mtx_unlock(&port->port_lock); 13101 } 13102 13103 /* 13104 * Remove this from the OOA queue. 13105 */ 13106 TAILQ_REMOVE(&lun->ooa_queue, &io->io_hdr, ooa_links); 13107#ifdef CTL_TIME_IO 13108 if (TAILQ_EMPTY(&lun->ooa_queue)) 13109 lun->last_busy = getsbinuptime(); 13110#endif 13111 13112 /* 13113 * Run through the blocked queue on this LUN and see if anything 13114 * has become unblocked, now that this transaction is done. 13115 */ 13116 ctl_check_blocked(lun); 13117 13118 /* 13119 * If the LUN has been invalidated, free it if there is nothing 13120 * left on its OOA queue. 13121 */ 13122 if ((lun->flags & CTL_LUN_INVALID) 13123 && TAILQ_EMPTY(&lun->ooa_queue)) { 13124 mtx_unlock(&lun->lun_lock); 13125 ctl_free_lun(lun); 13126 } else 13127 mtx_unlock(&lun->lun_lock); 13128 13129bailout: 13130 13131 /* 13132 * If this command has been aborted, make sure we set the status 13133 * properly. The FETD is responsible for freeing the I/O and doing 13134 * whatever it needs to do to clean up its state. 13135 */ 13136 if (io->io_hdr.flags & CTL_FLAG_ABORT) 13137 ctl_set_task_aborted(&io->scsiio); 13138 13139 /* 13140 * If enabled, print command error status. 13141 */ 13142 if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_SUCCESS && 13143 (ctl_debug & CTL_DEBUG_INFO) != 0) 13144 ctl_io_error_print(io, NULL); 13145 13146 /* 13147 * Tell the FETD or the other shelf controller we're done with this 13148 * command. Note that only SCSI commands get to this point. Task 13149 * management commands are completed above. 13150 */ 13151 if ((softc->ha_mode != CTL_HA_MODE_XFER) && 13152 (io->io_hdr.flags & CTL_FLAG_SENT_2OTHER_SC)) { 13153 memset(&msg, 0, sizeof(msg)); 13154 msg.hdr.msg_type = CTL_MSG_FINISH_IO; 13155 msg.hdr.serializing_sc = io->io_hdr.remote_io; 13156 msg.hdr.nexus = io->io_hdr.nexus; 13157 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13158 sizeof(msg.scsi) - sizeof(msg.scsi.sense_data), 13159 M_WAITOK); 13160 } 13161 13162 fe_done(io); 13163} 13164 13165/* 13166 * Front end should call this if it doesn't do autosense. When the request 13167 * sense comes back in from the initiator, we'll dequeue this and send it. 13168 */ 13169int 13170ctl_queue_sense(union ctl_io *io) 13171{ 13172 struct ctl_softc *softc = CTL_SOFTC(io); 13173 struct ctl_port *port = CTL_PORT(io); 13174 struct ctl_lun *lun; 13175 struct scsi_sense_data *ps; 13176 uint32_t initidx, p, targ_lun; 13177 13178 CTL_DEBUG_PRINT(("ctl_queue_sense\n")); 13179 13180 targ_lun = ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13181 13182 /* 13183 * LUN lookup will likely move to the ctl_work_thread() once we 13184 * have our new queueing infrastructure (that doesn't put things on 13185 * a per-LUN queue initially). That is so that we can handle 13186 * things like an INQUIRY to a LUN that we don't have enabled. We 13187 * can't deal with that right now. 13188 * If we don't have a LUN for this, just toss the sense information. 13189 */ 13190 mtx_lock(&softc->ctl_lock); 13191 if (targ_lun >= ctl_max_luns || 13192 (lun = softc->ctl_luns[targ_lun]) == NULL) { 13193 mtx_unlock(&softc->ctl_lock); 13194 goto bailout; 13195 } 13196 mtx_lock(&lun->lun_lock); 13197 mtx_unlock(&softc->ctl_lock); 13198 13199 initidx = ctl_get_initindex(&io->io_hdr.nexus); 13200 p = initidx / CTL_MAX_INIT_PER_PORT; 13201 if (lun->pending_sense[p] == NULL) { 13202 lun->pending_sense[p] = malloc(sizeof(*ps) * CTL_MAX_INIT_PER_PORT, 13203 M_CTL, M_NOWAIT | M_ZERO); 13204 } 13205 if ((ps = lun->pending_sense[p]) != NULL) { 13206 ps += initidx % CTL_MAX_INIT_PER_PORT; 13207 memset(ps, 0, sizeof(*ps)); 13208 memcpy(ps, &io->scsiio.sense_data, io->scsiio.sense_len); 13209 } 13210 mtx_unlock(&lun->lun_lock); 13211 13212bailout: 13213 ctl_free_io(io); 13214 return (CTL_RETVAL_COMPLETE); 13215} 13216 13217/* 13218 * Primary command inlet from frontend ports. All SCSI and task I/O 13219 * requests must go through this function. 13220 */ 13221int 13222ctl_queue(union ctl_io *io) 13223{ 13224 struct ctl_port *port = CTL_PORT(io); 13225 13226 CTL_DEBUG_PRINT(("ctl_queue cdb[0]=%02X\n", io->scsiio.cdb[0])); 13227 13228#ifdef CTL_TIME_IO 13229 io->io_hdr.start_time = time_uptime; 13230 getbinuptime(&io->io_hdr.start_bt); 13231#endif /* CTL_TIME_IO */ 13232 13233 /* Map FE-specific LUN ID into global one. */ 13234 io->io_hdr.nexus.targ_mapped_lun = 13235 ctl_lun_map_from_port(port, io->io_hdr.nexus.targ_lun); 13236 13237 switch (io->io_hdr.io_type) { 13238 case CTL_IO_SCSI: 13239 case CTL_IO_TASK: 13240 if (ctl_debug & CTL_DEBUG_CDB) 13241 ctl_io_print(io); 13242 ctl_enqueue_incoming(io); 13243 break; 13244 default: 13245 printf("ctl_queue: unknown I/O type %d\n", io->io_hdr.io_type); 13246 return (EINVAL); 13247 } 13248 13249 return (CTL_RETVAL_COMPLETE); 13250} 13251 13252#ifdef CTL_IO_DELAY 13253static void 13254ctl_done_timer_wakeup(void *arg) 13255{ 13256 union ctl_io *io; 13257 13258 io = (union ctl_io *)arg; 13259 ctl_done(io); 13260} 13261#endif /* CTL_IO_DELAY */ 13262 13263void 13264ctl_serseq_done(union ctl_io *io) 13265{ 13266 struct ctl_lun *lun = CTL_LUN(io);; 13267 13268 if (lun->be_lun == NULL || 13269 lun->be_lun->serseq == CTL_LUN_SERSEQ_OFF) 13270 return; 13271 mtx_lock(&lun->lun_lock); 13272 io->io_hdr.flags |= CTL_FLAG_SERSEQ_DONE; 13273 ctl_check_blocked(lun); 13274 mtx_unlock(&lun->lun_lock); 13275} 13276 13277void 13278ctl_done(union ctl_io *io) 13279{ 13280 13281 /* 13282 * Enable this to catch duplicate completion issues. 13283 */ 13284#if 0 13285 if (io->io_hdr.flags & CTL_FLAG_ALREADY_DONE) { 13286 printf("%s: type %d msg %d cdb %x iptl: " 13287 "%u:%u:%u tag 0x%04x " 13288 "flag %#x status %x\n", 13289 __func__, 13290 io->io_hdr.io_type, 13291 io->io_hdr.msg_type, 13292 io->scsiio.cdb[0], 13293 io->io_hdr.nexus.initid, 13294 io->io_hdr.nexus.targ_port, 13295 io->io_hdr.nexus.targ_lun, 13296 (io->io_hdr.io_type == 13297 CTL_IO_TASK) ? 13298 io->taskio.tag_num : 13299 io->scsiio.tag_num, 13300 io->io_hdr.flags, 13301 io->io_hdr.status); 13302 } else 13303 io->io_hdr.flags |= CTL_FLAG_ALREADY_DONE; 13304#endif 13305 13306 /* 13307 * This is an internal copy of an I/O, and should not go through 13308 * the normal done processing logic. 13309 */ 13310 if (io->io_hdr.flags & CTL_FLAG_INT_COPY) 13311 return; 13312 13313#ifdef CTL_IO_DELAY 13314 if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) { 13315 io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE; 13316 } else { 13317 struct ctl_lun *lun = CTL_LUN(io); 13318 13319 if ((lun != NULL) 13320 && (lun->delay_info.done_delay > 0)) { 13321 13322 callout_init(&io->io_hdr.delay_callout, /*mpsafe*/ 1); 13323 io->io_hdr.flags |= CTL_FLAG_DELAY_DONE; 13324 callout_reset(&io->io_hdr.delay_callout, 13325 lun->delay_info.done_delay * hz, 13326 ctl_done_timer_wakeup, io); 13327 if (lun->delay_info.done_type == CTL_DELAY_TYPE_ONESHOT) 13328 lun->delay_info.done_delay = 0; 13329 return; 13330 } 13331 } 13332#endif /* CTL_IO_DELAY */ 13333 13334 ctl_enqueue_done(io); 13335} 13336 13337static void 13338ctl_work_thread(void *arg) 13339{ 13340 struct ctl_thread *thr = (struct ctl_thread *)arg; 13341 struct ctl_softc *softc = thr->ctl_softc; 13342 union ctl_io *io; 13343 int retval; 13344 13345 CTL_DEBUG_PRINT(("ctl_work_thread starting\n")); 13346 13347 while (!softc->shutdown) { 13348 /* 13349 * We handle the queues in this order: 13350 * - ISC 13351 * - done queue (to free up resources, unblock other commands) 13352 * - RtR queue 13353 * - incoming queue 13354 * 13355 * If those queues are empty, we break out of the loop and 13356 * go to sleep. 13357 */ 13358 mtx_lock(&thr->queue_lock); 13359 io = (union ctl_io *)STAILQ_FIRST(&thr->isc_queue); 13360 if (io != NULL) { 13361 STAILQ_REMOVE_HEAD(&thr->isc_queue, links); 13362 mtx_unlock(&thr->queue_lock); 13363 ctl_handle_isc(io); 13364 continue; 13365 } 13366 io = (union ctl_io *)STAILQ_FIRST(&thr->done_queue); 13367 if (io != NULL) { 13368 STAILQ_REMOVE_HEAD(&thr->done_queue, links); 13369 /* clear any blocked commands, call fe_done */ 13370 mtx_unlock(&thr->queue_lock); 13371 ctl_process_done(io); 13372 continue; 13373 } 13374 io = (union ctl_io *)STAILQ_FIRST(&thr->incoming_queue); 13375 if (io != NULL) { 13376 STAILQ_REMOVE_HEAD(&thr->incoming_queue, links); 13377 mtx_unlock(&thr->queue_lock); 13378 if (io->io_hdr.io_type == CTL_IO_TASK) 13379 ctl_run_task(io); 13380 else 13381 ctl_scsiio_precheck(softc, &io->scsiio); 13382 continue; 13383 } 13384 io = (union ctl_io *)STAILQ_FIRST(&thr->rtr_queue); 13385 if (io != NULL) { 13386 STAILQ_REMOVE_HEAD(&thr->rtr_queue, links); 13387 mtx_unlock(&thr->queue_lock); 13388 retval = ctl_scsiio(&io->scsiio); 13389 if (retval != CTL_RETVAL_COMPLETE) 13390 CTL_DEBUG_PRINT(("ctl_scsiio failed\n")); 13391 continue; 13392 } 13393 13394 /* Sleep until we have something to do. */ 13395 mtx_sleep(thr, &thr->queue_lock, PDROP | PRIBIO, "-", 0); 13396 } 13397 thr->thread = NULL; 13398 kthread_exit(); 13399} 13400 13401static void 13402ctl_lun_thread(void *arg) 13403{ 13404 struct ctl_softc *softc = (struct ctl_softc *)arg; 13405 struct ctl_be_lun *be_lun; 13406 13407 CTL_DEBUG_PRINT(("ctl_lun_thread starting\n")); 13408 13409 while (!softc->shutdown) { 13410 mtx_lock(&softc->ctl_lock); 13411 be_lun = STAILQ_FIRST(&softc->pending_lun_queue); 13412 if (be_lun != NULL) { 13413 STAILQ_REMOVE_HEAD(&softc->pending_lun_queue, links); 13414 mtx_unlock(&softc->ctl_lock); 13415 ctl_create_lun(be_lun); 13416 continue; 13417 } 13418 13419 /* Sleep until we have something to do. */ 13420 mtx_sleep(&softc->pending_lun_queue, &softc->ctl_lock, 13421 PDROP | PRIBIO, "-", 0); 13422 } 13423 softc->lun_thread = NULL; 13424 kthread_exit(); 13425} 13426 13427static void 13428ctl_thresh_thread(void *arg) 13429{ 13430 struct ctl_softc *softc = (struct ctl_softc *)arg; 13431 struct ctl_lun *lun; 13432 struct ctl_logical_block_provisioning_page *page; 13433 const char *attr; 13434 union ctl_ha_msg msg; 13435 uint64_t thres, val; 13436 int i, e, set; 13437 13438 CTL_DEBUG_PRINT(("ctl_thresh_thread starting\n")); 13439 13440 while (!softc->shutdown) { 13441 mtx_lock(&softc->ctl_lock); 13442 STAILQ_FOREACH(lun, &softc->lun_list, links) { 13443 if ((lun->flags & CTL_LUN_DISABLED) || 13444 (lun->flags & CTL_LUN_NO_MEDIA) || 13445 lun->backend->lun_attr == NULL) 13446 continue; 13447 if ((lun->flags & CTL_LUN_PRIMARY_SC) == 0 && 13448 softc->ha_mode == CTL_HA_MODE_XFER) 13449 continue; 13450 if ((lun->MODE_RWER.byte8 & SMS_RWER_LBPERE) == 0) 13451 continue; 13452 e = 0; 13453 page = &lun->MODE_LBP; 13454 for (i = 0; i < CTL_NUM_LBP_THRESH; i++) { 13455 if ((page->descr[i].flags & SLBPPD_ENABLED) == 0) 13456 continue; 13457 thres = scsi_4btoul(page->descr[i].count); 13458 thres <<= CTL_LBP_EXPONENT; 13459 switch (page->descr[i].resource) { 13460 case 0x01: 13461 attr = "blocksavail"; 13462 break; 13463 case 0x02: 13464 attr = "blocksused"; 13465 break; 13466 case 0xf1: 13467 attr = "poolblocksavail"; 13468 break; 13469 case 0xf2: 13470 attr = "poolblocksused"; 13471 break; 13472 default: 13473 continue; 13474 } 13475 mtx_unlock(&softc->ctl_lock); // XXX 13476 val = lun->backend->lun_attr( 13477 lun->be_lun->be_lun, attr); 13478 mtx_lock(&softc->ctl_lock); 13479 if (val == UINT64_MAX) 13480 continue; 13481 if ((page->descr[i].flags & SLBPPD_ARMING_MASK) 13482 == SLBPPD_ARMING_INC) 13483 e = (val >= thres); 13484 else 13485 e = (val <= thres); 13486 if (e) 13487 break; 13488 } 13489 mtx_lock(&lun->lun_lock); 13490 if (e) { 13491 scsi_u64to8b((uint8_t *)&page->descr[i] - 13492 (uint8_t *)page, lun->ua_tpt_info); 13493 if (lun->lasttpt == 0 || 13494 time_uptime - lun->lasttpt >= CTL_LBP_UA_PERIOD) { 13495 lun->lasttpt = time_uptime; 13496 ctl_est_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13497 set = 1; 13498 } else 13499 set = 0; 13500 } else { 13501 lun->lasttpt = 0; 13502 ctl_clr_ua_all(lun, -1, CTL_UA_THIN_PROV_THRES); 13503 set = -1; 13504 } 13505 mtx_unlock(&lun->lun_lock); 13506 if (set != 0 && 13507 lun->ctl_softc->ha_mode == CTL_HA_MODE_XFER) { 13508 /* Send msg to other side. */ 13509 bzero(&msg.ua, sizeof(msg.ua)); 13510 msg.hdr.msg_type = CTL_MSG_UA; 13511 msg.hdr.nexus.initid = -1; 13512 msg.hdr.nexus.targ_port = -1; 13513 msg.hdr.nexus.targ_lun = lun->lun; 13514 msg.hdr.nexus.targ_mapped_lun = lun->lun; 13515 msg.ua.ua_all = 1; 13516 msg.ua.ua_set = (set > 0); 13517 msg.ua.ua_type = CTL_UA_THIN_PROV_THRES; 13518 memcpy(msg.ua.ua_info, lun->ua_tpt_info, 8); 13519 mtx_unlock(&softc->ctl_lock); // XXX 13520 ctl_ha_msg_send(CTL_HA_CHAN_CTL, &msg, 13521 sizeof(msg.ua), M_WAITOK); 13522 mtx_lock(&softc->ctl_lock); 13523 } 13524 } 13525 mtx_sleep(&softc->thresh_thread, &softc->ctl_lock, 13526 PDROP | PRIBIO, "-", CTL_LBP_PERIOD * hz); 13527 } 13528 softc->thresh_thread = NULL; 13529 kthread_exit(); 13530} 13531 13532static void 13533ctl_enqueue_incoming(union ctl_io *io) 13534{ 13535 struct ctl_softc *softc = CTL_SOFTC(io); 13536 struct ctl_thread *thr; 13537 u_int idx; 13538 13539 idx = (io->io_hdr.nexus.targ_port * 127 + 13540 io->io_hdr.nexus.initid) % worker_threads; 13541 thr = &softc->threads[idx]; 13542 mtx_lock(&thr->queue_lock); 13543 STAILQ_INSERT_TAIL(&thr->incoming_queue, &io->io_hdr, links); 13544 mtx_unlock(&thr->queue_lock); 13545 wakeup(thr); 13546} 13547 13548static void 13549ctl_enqueue_rtr(union ctl_io *io) 13550{ 13551 struct ctl_softc *softc = CTL_SOFTC(io); 13552 struct ctl_thread *thr; 13553 13554 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13555 mtx_lock(&thr->queue_lock); 13556 STAILQ_INSERT_TAIL(&thr->rtr_queue, &io->io_hdr, links); 13557 mtx_unlock(&thr->queue_lock); 13558 wakeup(thr); 13559} 13560 13561static void 13562ctl_enqueue_done(union ctl_io *io) 13563{ 13564 struct ctl_softc *softc = CTL_SOFTC(io); 13565 struct ctl_thread *thr; 13566 13567 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13568 mtx_lock(&thr->queue_lock); 13569 STAILQ_INSERT_TAIL(&thr->done_queue, &io->io_hdr, links); 13570 mtx_unlock(&thr->queue_lock); 13571 wakeup(thr); 13572} 13573 13574static void 13575ctl_enqueue_isc(union ctl_io *io) 13576{ 13577 struct ctl_softc *softc = CTL_SOFTC(io); 13578 struct ctl_thread *thr; 13579 13580 thr = &softc->threads[io->io_hdr.nexus.targ_mapped_lun % worker_threads]; 13581 mtx_lock(&thr->queue_lock); 13582 STAILQ_INSERT_TAIL(&thr->isc_queue, &io->io_hdr, links); 13583 mtx_unlock(&thr->queue_lock); 13584 wakeup(thr); 13585} 13586 13587/* 13588 * vim: ts=8 13589 */ 13590